.page-contact {
  --pc-line: rgba(201, 194, 182, .72);
  --pc-soft: rgba(244, 239, 230, .12);
  --pc-text-on-ink: rgba(244, 239, 230, .78);
  overflow-x: clip;
  background: var(--paper);
  color: var(--ink);
  padding-bottom: clamp(56px, 8vw, 104px);
}

.page-contact .breadcrumb {
  padding-top: clamp(24px, 4vw, 40px);
  font-family: var(--font-data);
  font-size: .76rem;
  letter-spacing: .05em;
  color: var(--concrete);
}

.page-contact .breadcrumb a {
  color: var(--copper);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: border-color .2s var(--ease);
}

.page-contact .breadcrumb a:hover {
  border-bottom-color: var(--copper);
}

/* ── 首屏 ─────────────────────────────── */

.page-contact .contact-hero {
  position: relative;
  margin-top: clamp(20px, 3.4vw, 36px);
}

.page-contact .contact-hero::before {
  content: "";
  position: absolute;
  inset: -24px 0 auto 0;
  height: 340px;
  z-index: 0;
  pointer-events: none;
  background-image:
    linear-gradient(to right, rgba(201, 194, 182, .45) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(201, 194, 182, .45) 1px, transparent 1px);
  background-size: 72px 72px;
  -webkit-mask-image: linear-gradient(to bottom, #000 8%, transparent 92%);
  mask-image: linear-gradient(to bottom, #000 8%, transparent 92%);
}

.page-contact .hero-grid {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(30px, 5vw, 56px);
  align-items: start;
}

.page-contact .hero-lead h1 {
  margin: .38em 0 .55em;
  font-family: var(--font-display);
  font-size: clamp(1.85rem, 5.2vw, 3.35rem);
  line-height: 1.14;
  font-weight: 700;
  letter-spacing: -.012em;
}

.page-contact .hero-lead .lede {
  margin: 0;
  max-width: 46ch;
  font-size: clamp(.96rem, 1.5vw, 1.06rem);
  line-height: 1.8;
  color: var(--ink-80);
}

.page-contact .hero-facts {
  list-style: none;
  margin: clamp(26px, 3.4vw, 38px) 0 0;
  padding: 0;
  border-top: 1px solid var(--pc-line);
}

.page-contact .hero-facts li {
  display: flex;
  align-items: baseline;
  gap: 14px;
  padding: 14px 0;
  border-bottom: 1px solid var(--pc-line);
  font-size: .9rem;
  line-height: 1.6;
  color: var(--ink-80);
}

.page-contact .hero-facts .num {
  flex: 0 0 auto;
  min-width: 2.6em;
  font-family: var(--font-data);
  font-size: 1.28rem;
  font-weight: 700;
  color: var(--copper);
  letter-spacing: -.01em;
}

/* ── 联系卡 ───────────────────────────── */

.page-contact .contact-card {
  position: relative;
  isolation: isolate;
  overflow: hidden;
  background: var(--ink);
  color: var(--paper);
  box-shadow: var(--shadow);
}

.page-contact .contact-card__bg {
  position: absolute;
  inset: 0;
  z-index: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: .3;
  filter: saturate(.75);
}

.page-contact .contact-card::after {
  content: "";
  position: absolute;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  background:
    linear-gradient(155deg, rgba(11, 27, 43, .6) 10%, rgba(11, 27, 43, .94) 66%),
    repeating-linear-gradient(to right, rgba(79, 163, 165, .16) 0 1px, transparent 1px 72px);
}

.page-contact .contact-card__body {
  position: relative;
  z-index: 1;
  padding: clamp(26px, 3.8vw, 44px);
}

.page-contact .contact-card__coord {
  margin: 0 0 20px;
  padding-bottom: 14px;
  border-bottom: 1px solid var(--pc-soft);
  font-family: var(--font-data);
  font-size: .7rem;
  letter-spacing: .22em;
  text-transform: uppercase;
  color: var(--pickle);
}

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

.page-contact .contact-line {
  display: grid;
  gap: 5px;
  padding: 14px 0;
  border-bottom: 1px solid var(--pc-soft);
}

.page-contact .contact-line dt {
  font-size: .7rem;
  letter-spacing: .16em;
  text-transform: uppercase;
  color: rgba(244, 239, 230, .52);
}

.page-contact .contact-line dd {
  margin: 0;
  font-size: 1rem;
  line-height: 1.55;
  color: var(--white);
  word-break: break-word;
}

.page-contact .contact-card__phone,
.page-contact .contact-card__mail {
  font-family: var(--font-data);
  letter-spacing: .01em;
}

.page-contact .contact-card__phone {
  font-size: clamp(1.35rem, 3.4vw, 1.85rem);
  font-weight: 700;
  color: var(--pickle) !important;
}

.page-contact .contact-card__mail {
  font-size: clamp(.88rem, 2vw, 1.02rem);
  color: var(--data-cyan) !important;
}

.page-contact .contact-card__note {
  margin: 20px 0 0;
  font-size: .8rem;
  line-height: 1.7;
  color: var(--pc-text-on-ink);
}

/* ── 通用区块标题 ─────────────────────── */

.page-contact .contact-channels,
.page-contact .contact-partners,
.page-contact .contact-timing,
.page-contact .contact-form-section,
.page-contact .contact-preflight {
  margin-top: clamp(64px, 9vw, 120px);
}

.page-contact .section-head {
  max-width: 60ch;
  margin-bottom: clamp(28px, 4vw, 48px);
}

.page-contact .section-head .section-title {
  margin-top: 10px;
}

.page-contact .section-head .lede {
  margin: 14px 0 0;
  color: var(--ink-80);
  line-height: 1.8;
  font-size: .96rem;
}

/* ── 三条通道 ─────────────────────────── */

.page-contact .channel-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1px;
  background: var(--pc-line);
  border: 1px solid var(--pc-line);
}

.page-contact .channel-card {
  display: flex;
  flex-direction: column;
  gap: 14px;
  padding: clamp(24px, 3.2vw, 36px);
  background: var(--paper);
}

.page-contact .channel-card__no {
  margin: 0;
  font-family: var(--font-data);
  font-size: .78rem;
  letter-spacing: .2em;
  font-weight: 700;
  color: var(--hibiscus);
}

.page-contact .channel-card h3 {
  margin: 0;
  font-family: var(--font-display);
  font-size: 1.2rem;
  line-height: 1.38;
}

.page-contact .channel-card > p {
  margin: 0;
  font-size: .9rem;
  line-height: 1.78;
  color: var(--ink-80);
}

.page-contact .channel-card > .channel-card__meta {
  margin-top: auto;
  padding-top: 16px;
  border-top: 1px solid var(--pc-line);
  font-family: var(--font-data);
  font-size: .74rem;
  letter-spacing: .02em;
  line-height: 1.6;
  color: var(--concrete);
}

/* ── 合作与内容源 ─────────────────────── */

.page-contact .partner-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(28px, 4vw, 52px);
  align-items: center;
}

.page-contact .partner-copy .section-title {
  margin: 10px 0 0;
}

.page-contact .partner-copy .lede {
  margin: 16px 0 24px;
  max-width: 48ch;
  font-size: .96rem;
  line-height: 1.8;
  color: var(--ink-80);
}

.page-contact .partner-figure {
  position: relative;
  margin: 0;
  border-left: 3px solid var(--copper);
}

.page-contact .partner-figure img {
  display: block;
  width: 100%;
  height: auto;
  max-width: 100%;
  object-fit: cover;
  border: 1px solid var(--pc-line);
  border-left: 0;
}

.page-contact .partner-figure figcaption {
  margin-top: 12px;
  padding-left: 14px;
  font-family: var(--font-data);
  font-size: .73rem;
  line-height: 1.6;
  letter-spacing: .02em;
  color: var(--concrete);
}

.page-contact .filter-bar {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  margin: clamp(34px, 4.4vw, 52px) 0 20px;
  padding: 14px 0;
  border-top: 1px solid var(--pc-line);
  border-bottom: 1px solid var(--pc-line);
}

.page-contact .filter-bar__label {
  margin-right: 6px;
  font-family: var(--font-data);
  font-size: .7rem;
  letter-spacing: .18em;
  text-transform: uppercase;
  color: var(--concrete);
}

.page-contact .filter-chip {
  appearance: none;
  padding: 8px 15px;
  border: 1px solid var(--pc-line);
  border-radius: 0;
  background: transparent;
  color: var(--ink-80);
  font-family: var(--font-data);
  font-size: .76rem;
  letter-spacing: .04em;
  cursor: pointer;
  transition: background .2s var(--ease), color .2s var(--ease), border-color .2s var(--ease);
}

.page-contact .filter-chip:hover {
  border-color: var(--copper);
  color: var(--copper);
}

.page-contact .filter-chip.is-on,
.page-contact .filter-chip[aria-pressed="true"] {
  background: var(--copper);
  border-color: var(--copper);
  color: var(--white);
}

.page-contact .filter-chip:focus-visible {
  outline: 2px solid var(--data-cyan);
  outline-offset: 2px;
}

.page-contact .partner-cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(230px, 1fr));
  gap: 16px;
}

.page-contact .partner-cards > .is-filtered-out {
  display: none;
}

.page-contact .partner-card {
  display: flex;
  flex-direction: column;
  gap: 10px;
  padding: 22px;
  border: 1px solid var(--pc-line);
  background: var(--paper);
  transition: border-color .2s var(--ease), transform .2s var(--ease);
}

.page-contact .partner-card:hover {
  border-color: var(--copper);
  transform: translateY(-2px);
}

.page-contact .partner-card__tag {
  align-self: flex-start;
  padding: 3px 9px;
  border: 1px solid var(--copper);
  font-family: var(--font-data);
  font-size: .66rem;
  letter-spacing: .14em;
  color: var(--copper);
}

.page-contact .partner-card h3 {
  margin: 0;
  font-family: var(--font-display);
  font-size: 1.04rem;
  line-height: 1.42;
}

.page-contact .partner-card p {
  margin: 0;
  font-size: .87rem;
  line-height: 1.75;
  color: var(--ink-80);
}

.page-contact .filter-empty {
  margin: 20px 0 0;
  padding: 26px;
  border: 1px dashed var(--pc-line);
  text-align: center;
  font-size: .88rem;
  color: var(--concrete);
}

/* ── 回复时间与准备信息 ───────────────── */

.page-contact .timing-layout {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(30px, 4vw, 52px);
  align-items: start;
}

.page-contact .timing-steps {
  list-style: none;
  margin: 0;
  padding: 0;
  counter-reset: step;
}

.page-contact .timing-steps li {
  position: relative;
  margin-left: 17px;
  padding: 0 0 clamp(24px, 3vw, 34px) 50px;
  border-left: 1px solid var(--pc-line);
}

.page-contact .timing-steps li:last-child {
  padding-bottom: 0;
  border-left-color: transparent;
}

.page-contact .timing-steps li::before {
  counter-increment: step;
  content: counter(step, decimal-leading-zero);
  position: absolute;
  left: -17px;
  top: -6px;
  width: 34px;
  height: 34px;
  display: grid;
  place-items: center;
  background: var(--paper);
  border: 1px solid var(--copper);
  font-family: var(--font-data);
  font-size: .72rem;
  font-weight: 700;
  color: var(--copper);
}

.page-contact .timing-steps h3 {
  margin: 0 0 8px;
  font-family: var(--font-display);
  font-size: 1.08rem;
  line-height: 1.4;
}

.page-contact .timing-steps p {
  margin: 0;
  font-size: .9rem;
  line-height: 1.78;
  color: var(--ink-80);
}

.page-contact .timing-aside {
  padding: clamp(24px, 3.2vw, 36px);
  background: var(--ink);
  color: var(--paper);
}

.page-contact .timing-aside h3 {
  margin: 0 0 18px;
  padding-bottom: 14px;
  border-bottom: 1px solid var(--pc-soft);
  font-family: var(--font-display);
  font-size: 1.05rem;
  color: var(--white);
}

.page-contact .timing-aside ul {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 13px;
}

.page-contact .timing-aside li {
  position: relative;
  padding-left: 18px;
  font-size: .86rem;
  line-height: 1.74;
  color: var(--pc-text-on-ink);
}

.page-contact .timing-aside li::before {
  content: "";
  position: absolute;
  left: 0;
  top: .62em;
  width: 6px;
  height: 6px;
  background: var(--pickle);
}

/* ── 留言表单 ─────────────────────────── */

.page-contact .form-panel {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(30px, 4vw, 52px);
  padding: clamp(28px, 4vw, 56px);
  background: var(--ink);
  color: var(--paper);
}

.page-contact .form-panel__intro .eyebrow {
  color: var(--pickle);
}

.page-contact .form-panel__intro .section-title {
  margin: 10px 0 0;
  color: var(--white);
}

.page-contact .form-panel__intro p {
  margin: 16px 0 0;
  font-size: .9rem;
  line-height: 1.82;
  color: var(--pc-text-on-ink);
}

.page-contact .form-panel__intro a {
  color: var(--data-cyan);
}

.page-contact .form-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 18px;
  align-content: start;
}

.page-contact .field {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.page-contact .field label {
  font-family: var(--font-data);
  font-size: .7rem;
  letter-spacing: .14em;
  text-transform: uppercase;
  color: rgba(244, 239, 230, .56);
}

.page-contact .field input,
.page-contact .field select,
.page-contact .field textarea {
  box-sizing: border-box;
  width: 100%;
  padding: 12px 14px;
  border: 1px solid rgba(244, 239, 230, .22);
  border-radius: 0;
  background: rgba(244, 239, 230, .06);
  color: var(--white);
  font-family: var(--font-body);
  font-size: .94rem;
  line-height: 1.5;
  transition: border-color .2s var(--ease), background .2s var(--ease);
}

.page-contact .field input::placeholder,
.page-contact .field textarea::placeholder {
  color: rgba(244, 239, 230, .32);
}

.page-contact .field input:focus,
.page-contact .field select:focus,
.page-contact .field textarea:focus {
  outline: none;
  border-color: var(--data-cyan);
  background: rgba(244, 239, 230, .1);
}

.page-contact .field textarea {
  min-height: 132px;
  resize: vertical;
}

.page-contact .field select option {
  background: var(--paper);
  color: var(--ink);
}

.page-contact .form-actions {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 14px 18px;
  padding-top: 6px;
}

.page-contact .form-status {
  flex: 1 1 240px;
  margin: 0;
  font-family: var(--font-data);
  font-size: .74rem;
  line-height: 1.7;
  color: rgba(244, 239, 230, .56);
}

/* ── 前置入口 ─────────────────────────── */

.page-contact .preflight-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 16px;
  margin-top: clamp(24px, 3.2vw, 38px);
}

.page-contact .preflight-card {
  display: block;
  padding: clamp(22px, 3vw, 32px);
  border: 1px solid var(--pc-line);
  background: var(--paper);
  color: inherit;
  text-decoration: none;
  transition: border-color .2s var(--ease), background .2s var(--ease), transform .2s var(--ease);
}

.page-contact .preflight-card:hover {
  border-color: var(--copper);
  background: var(--white);
  transform: translateY(-2px);
}

.page-contact .preflight-card__no {
  margin: 0 0 14px;
  font-family: var(--font-data);
  font-size: .76rem;
  letter-spacing: .2em;
  font-weight: 700;
  color: var(--hibiscus);
}

.page-contact .preflight-card h3 {
  margin: 0 0 10px;
  font-family: var(--font-display);
  font-size: 1.14rem;
  line-height: 1.4;
}

.page-contact .preflight-card p {
  margin: 0 0 18px;
  font-size: .89rem;
  line-height: 1.76;
  color: var(--ink-80);
}

.page-contact .preflight-card__go {
  display: inline-block;
  padding-bottom: 2px;
  border-bottom: 1px solid var(--copper);
  font-family: var(--font-data);
  font-size: .78rem;
  letter-spacing: .05em;
  color: var(--copper);
}

.page-contact .preflight-note {
  margin: clamp(24px, 3vw, 34px) 0 0;
  padding-left: 16px;
  border-left: 3px solid var(--pickle);
  font-size: .9rem;
  line-height: 1.78;
  color: var(--ink-80);
}

.page-contact .preflight-note .num {
  font-family: var(--font-data);
  font-weight: 700;
  color: var(--ink);
}

/* ── 响应式 ───────────────────────────── */

@media (min-width: 640px) {
  .page-contact .form-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .page-contact .field--wide {
    grid-column: 1 / -1;
  }
}

@media (min-width: 760px) {
  .page-contact .preflight-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (min-width: 800px) {
  .page-contact .channel-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

@media (min-width: 880px) {
  .page-contact .partner-grid {
    grid-template-columns: minmax(0, 1fr) minmax(0, .88fr);
  }
}

@media (min-width: 900px) {
  .page-contact .timing-layout {
    grid-template-columns: minmax(0, 1.4fr) minmax(0, .7fr);
  }
}

@media (min-width: 960px) {
  .page-contact .hero-grid {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1.02fr);
  }

  .page-contact .form-panel {
    grid-template-columns: minmax(0, .82fr) minmax(0, 1.18fr);
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-contact .partner-card,
  .page-contact .preflight-card,
  .page-contact .filter-chip {
    transition: none;
  }

  .page-contact .partner-card:hover,
  .page-contact .preflight-card:hover {
    transform: none;
  }
}