.page-contact {
  --pc-gap: clamp(18px, 2.2vw, 32px);
  --pc-block: clamp(40px, 5vw, 80px);
  --pc-radius: 3px;
  background: var(--c-green);
  color: var(--c-paper);
  padding-bottom: clamp(32px, 4vw, 64px);
}

.page-contact .page-shell {
  width: 100%;
  max-width: var(--page-max);
  margin-inline: auto;
  padding-inline: var(--gutter);
}

/* ---------- 面包屑 ---------- */
.page-contact .breadcrumb {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  padding-top: clamp(18px, 2.2vw, 30px);
  font-family: var(--f-mono);
  font-size: var(--fs-cap);
  letter-spacing: .08em;
  color: var(--c-steel);
}

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

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

/* ---------- 首屏 ---------- */
.page-contact .contact-hero {
  position: relative;
  padding: clamp(26px, 4vw, 56px) 0 clamp(24px, 3vw, 40px);
  border-bottom: 1px solid var(--wire-line);
  overflow: hidden;
}

.page-contact .contact-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image: repeating-linear-gradient(
    112deg,
    rgba(183, 255, 60, .045) 0 2px,
    transparent 2px 14px
  );
  pointer-events: none;
}

.page-contact .contact-hero::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: 0;
  width: min(320px, 42%);
  height: 2px;
  background: linear-gradient(90deg, var(--c-lime), var(--c-orange));
}

.page-contact .eyebrow {
  margin: 0;
  font-family: var(--f-mono);
  font-size: 12px;
  letter-spacing: .16em;
  text-transform: uppercase;
  color: var(--c-orange);
}

.page-contact .contact-hero h1 {
  position: relative;
  margin: 12px 0 0;
  max-width: 22ch;
  font-family: var(--f-display);
  font-weight: 800;
  font-size: var(--fs-h1);
  line-height: 1.04;
  letter-spacing: .01em;
  color: var(--c-paper);
}

.page-contact .contact-lead {
  position: relative;
  margin: 18px 0 0;
  max-width: 34em;
  font-size: var(--fs-body);
  line-height: 1.75;
  color: var(--c-steel);
}

.page-contact .contact-meta {
  position: relative;
  margin: 20px 0 0;
  font-family: var(--f-mono);
  font-size: var(--fs-cap);
  letter-spacing: .06em;
  color: var(--c-steel-mid);
}

.page-contact .contact-meta .num {
  color: var(--c-lime);
}

/* ---------- 主体分栏 ---------- */
.page-contact .contact-body {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: var(--pc-gap);
  padding-top: clamp(26px, 3.4vw, 48px);
}

.page-contact .contact-main {
  display: grid;
  gap: clamp(28px, 3.4vw, 48px);
  min-width: 0;
}

.page-contact .contact-side {
  min-width: 0;
}

@media (min-width: 1024px) {
  .page-contact .contact-body {
    grid-template-columns: minmax(0, 1.6fr) minmax(0, 1fr);
    gap: clamp(28px, 3vw, 52px);
  }

  .page-contact .contact-side {
    position: sticky;
    top: calc(var(--header-h) + 24px);
    align-self: start;
  }
}

/* ---------- 配图 ---------- */
.page-contact .contact-shot {
  margin: 0;
  border: 1px solid var(--wire-line);
  background: var(--c-panel);
  overflow: hidden;
}

.page-contact .contact-shot img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 3 / 2;
  object-fit: cover;
}

.page-contact .contact-shot .media-caption {
  display: block;
  padding: 12px 16px;
  border-top: 1px solid var(--wire-hair);
  font-family: var(--f-mono);
  font-size: 12px;
  letter-spacing: .06em;
  line-height: 1.5;
  color: var(--c-steel);
}

/* ---------- 区块标题 ---------- */
.page-contact .section-head {
  margin-bottom: clamp(16px, 2vw, 26px);
}

.page-contact .section-head h2 {
  margin: 8px 0 0;
  font-family: var(--f-display);
  font-weight: 700;
  font-size: var(--fs-h2);
  line-height: 1.1;
  letter-spacing: .02em;
  color: var(--c-paper);
}

.page-contact .section-head p:not(.eyebrow) {
  margin: 10px 0 0;
  max-width: 42em;
  font-size: 15px;
  line-height: 1.75;
  color: var(--c-steel);
}

/* ---------- 反馈类型选择 ---------- */
.page-contact .fb-radio {
  position: absolute;
  width: 1px;
  height: 1px;
  margin: -1px;
  padding: 0;
  border: 0;
  overflow: hidden;
  clip: rect(0 0 0 0);
  clip-path: inset(50%);
  white-space: nowrap;
}

.page-contact .fb-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 12px;
}

@media (min-width: 641px) {
  .page-contact .fb-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

.page-contact .fb-card {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  grid-template-areas:
    "idx title"
    "idx desc";
  column-gap: 14px;
  row-gap: 6px;
  padding: 16px 16px 18px;
  background: var(--c-panel);
  border: 1px solid var(--c-line);
  border-left: 2px solid var(--c-steel-mid);
  cursor: pointer;
  transition: border-color var(--dur) var(--ease),
              background var(--dur) var(--ease),
              transform var(--dur) var(--ease);
}

.page-contact .fb-card:hover {
  background: var(--c-line);
  transform: translateX(2px);
}

.page-contact .fb-card-idx {
  grid-area: idx;
  padding-top: 3px;
  font-family: var(--f-mono);
  font-size: 13px;
  letter-spacing: .06em;
  color: var(--c-steel-mid);
  transition: color var(--dur) var(--ease);
}

.page-contact .fb-card-title {
  grid-area: title;
  font-family: var(--f-display);
  font-weight: 700;
  font-size: 19px;
  letter-spacing: .02em;
  color: var(--c-paper);
}

.page-contact .fb-card-desc {
  grid-area: desc;
  font-size: 14px;
  line-height: 1.65;
  color: var(--c-steel);
}

.page-contact .fb-types:has(#fb-type-data:checked) .fb-card[for="fb-type-data"],
.page-contact .fb-types:has(#fb-type-idea:checked) .fb-card[for="fb-type-idea"],
.page-contact .fb-types:has(#fb-type-quote:checked) .fb-card[for="fb-type-quote"],
.page-contact .fb-types:has(#fb-type-biz:checked) .fb-card[for="fb-type-biz"] {
  border-color: var(--c-lime);
  border-left-color: var(--c-lime);
  background: rgba(183, 255, 60, .07);
}

.page-contact .fb-types:has(#fb-type-data:checked) .fb-card[for="fb-type-data"] .fb-card-idx,
.page-contact .fb-types:has(#fb-type-idea:checked) .fb-card[for="fb-type-idea"] .fb-card-idx,
.page-contact .fb-types:has(#fb-type-quote:checked) .fb-card[for="fb-type-quote"] .fb-card-idx,
.page-contact .fb-types:has(#fb-type-biz:checked) .fb-card[for="fb-type-biz"] .fb-card-idx {
  color: var(--c-lime);
}

.page-contact .fb-types:has(#fb-type-data:focus-visible) .fb-card[for="fb-type-data"],
.page-contact .fb-types:has(#fb-type-idea:focus-visible) .fb-card[for="fb-type-idea"],
.page-contact .fb-types:has(#fb-type-quote:focus-visible) .fb-card[for="fb-type-quote"],
.page-contact .fb-types:has(#fb-type-biz:focus-visible) .fb-card[for="fb-type-biz"] {
  outline: 2px solid var(--c-lime);
  outline-offset: 3px;
}

.page-contact .fb-panels {
  margin-top: 14px;
}

.page-contact .fb-panel {
  display: none;
  padding: 16px 18px 18px;
  background: var(--c-ink);
  border: 1px solid var(--c-line);
  border-top: 2px solid var(--c-orange);
}

.page-contact .fb-types:has(#fb-type-data:checked) #fb-p-data,
.page-contact .fb-types:has(#fb-type-idea:checked) #fb-p-idea,
.page-contact .fb-types:has(#fb-type-quote:checked) #fb-p-quote,
.page-contact .fb-types:has(#fb-type-biz:checked) #fb-p-biz {
  display: block;
}

.page-contact .fb-panel-lead {
  margin: 0;
  font-family: var(--f-mono);
  font-size: 12px;
  letter-spacing: .12em;
  text-transform: uppercase;
  color: var(--c-orange);
}

.page-contact .fb-panel-list {
  margin: 12px 0 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 8px;
}

.page-contact .fb-panel-list li {
  position: relative;
  padding-left: 18px;
  font-size: 14px;
  line-height: 1.65;
  color: var(--c-steel);
}

.page-contact .fb-panel-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 9px;
  width: 8px;
  height: 1px;
  background: var(--c-lime-mid);
}

/* ---------- 自查清单 ---------- */
.page-contact .checklist {
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 10px;
}

.page-contact .check-item {
  position: relative;
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 12px;
  align-items: start;
  padding: 13px 16px;
  background: rgba(20, 37, 31, .62);
  border: 1px solid var(--c-line);
  cursor: pointer;
  transition: border-color var(--dur) var(--ease), background var(--dur) var(--ease);
}

.page-contact .check-item:hover {
  border-color: var(--c-steel-mid);
}

.page-contact .check-input {
  position: absolute;
  width: 1px;
  height: 1px;
  margin: -1px;
  padding: 0;
  border: 0;
  overflow: hidden;
  clip: rect(0 0 0 0);
  clip-path: inset(50%);
  white-space: nowrap;
}

.page-contact .check-box {
  position: relative;
  width: 18px;
  height: 18px;
  margin-top: 3px;
  border: 1px solid var(--c-steel-mid);
  transition: border-color var(--dur) var(--ease), background var(--dur) var(--ease);
}

.page-contact .check-box::after {
  content: "";
  position: absolute;
  left: 5px;
  top: 1px;
  width: 5px;
  height: 10px;
  border-right: 2px solid var(--c-ink);
  border-bottom: 2px solid var(--c-ink);
  opacity: 0;
  transform: rotate(45deg) scale(.4);
  transition: opacity var(--dur) var(--ease), transform var(--dur) var(--ease);
}

.page-contact .check-input:checked + .check-box {
  background: var(--c-lime);
  border-color: var(--c-lime);
}

.page-contact .check-input:checked + .check-box::after {
  opacity: 1;
  transform: rotate(45deg) scale(1);
}

.page-contact .check-input:focus-visible + .check-box {
  outline: 2px solid var(--c-lime);
  outline-offset: 3px;
}

.page-contact .check-text {
  font-size: 14px;
  line-height: 1.7;
  color: var(--c-steel);
}

.page-contact .check-note {
  margin: 16px 0 0;
  font-family: var(--f-mono);
  font-size: 12px;
  letter-spacing: .06em;
  color: var(--c-steel-mid);
  transition: color var(--dur) var(--ease);
}

.page-contact .checklist:not(:has(.check-input:not(:checked))) .check-item {
  border-color: rgba(183, 255, 60, .3);
}

.page-contact .checklist:not(:has(.check-input:not(:checked))) + .check-note {
  color: var(--c-lime);
}

/* ---------- 联系信息卡 ---------- */
.page-contact .contact-card {
  background: var(--c-paper-card);
  color: var(--c-green);
  border: 1px solid var(--c-wire);
  overflow: hidden;
  box-shadow: 0 6px 8px rgba(0, 0, 0, .32);
}

.page-contact .contact-card-media {
  position: relative;
  height: clamp(110px, 14vw, 150px);
  background: var(--c-panel);
  overflow: hidden;
}

.page-contact .contact-card-media img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: .85;
}

.page-contact .contact-card-media::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(8, 17, 15, .1), rgba(8, 17, 15, .58));
}

.page-contact .contact-card-body {
  padding: clamp(18px, 2vw, 24px) clamp(18px, 2vw, 24px) clamp(20px, 2.2vw, 26px);
}

.page-contact .contact-card-body h2 {
  margin: 0;
  font-family: var(--f-display);
  font-weight: 700;
  font-size: clamp(22px, 2vw, 28px);
  line-height: 1.15;
  letter-spacing: .02em;
  color: var(--c-green);
}

.page-contact .contact-card-body > p {
  margin: 10px 0 0;
  font-size: 14px;
  line-height: 1.72;
  color: #33443D;
}

.page-contact .pc-rows {
  margin: 18px 0 0;
  border-top: 1px solid rgba(14, 26, 23, .16);
}

.page-contact .pc-row {
  display: grid;
  gap: 4px;
  padding: 12px 0;
  border-bottom: 1px solid rgba(14, 26, 23, .16);
}

.page-contact .pc-row dt {
  font-family: var(--f-mono);
  font-size: 11px;
  letter-spacing: .14em;
  text-transform: uppercase;
  color: var(--c-steel-mid);
}

.page-contact .pc-row dd {
  margin: 0;
  font-family: var(--f-mono);
  font-size: 15px;
  line-height: 1.55;
  color: var(--c-green);
  overflow-wrap: anywhere;
}

/* ---------- 数据纠错步骤 ---------- */
.page-contact .fix-block,
.page-contact .biz-block,
.page-contact .reply-block {
  padding-top: var(--pc-block);
}

.page-contact .fix-steps {
  margin: 0;
  padding: 0;
  list-style: none;
  border-top: 1px solid var(--wire-line);
}

.page-contact .fix-step {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 16px;
  padding: 20px 0;
  border-bottom: 1px solid var(--wire-line);
}

.page-contact .fix-num {
  min-width: 44px;
  font-family: var(--f-mono);
  font-size: 22px;
  line-height: 1.1;
  color: var(--c-lime);
}

.page-contact .fix-copy h3 {
  margin: 0 0 6px;
  font-family: var(--f-display);
  font-weight: 700;
  font-size: 20px;
  letter-spacing: .02em;
  color: var(--c-paper);
}

.page-contact .fix-copy p {
  margin: 0;
  max-width: 46em;
  font-size: 15px;
  line-height: 1.75;
  color: var(--c-steel);
}

/* ---------- 商务合作 ---------- */
.page-contact .biz-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 14px;
}

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

.page-contact .biz-card {
  display: flex;
  flex-direction: column;
  padding: 20px 18px 22px;
  background: var(--c-panel);
  border: 1px solid var(--c-line);
  border-top: 2px solid var(--c-line);
  transition: border-color var(--dur) var(--ease), background var(--dur) var(--ease);
}

.page-contact .biz-card:hover {
  border-top-color: var(--c-lime);
  background: var(--c-line);
}

.page-contact .biz-card h3 {
  margin: 12px 0 0;
  font-family: var(--f-display);
  font-weight: 700;
  font-size: 21px;
  line-height: 1.2;
  letter-spacing: .02em;
  color: var(--c-paper);
}

.page-contact .biz-card > p {
  margin: 10px 0 0;
  font-size: 14px;
  line-height: 1.72;
  color: var(--c-steel);
}

.page-contact .biz-list {
  margin: 16px 0 0;
  padding: 14px 0 0;
  list-style: none;
  border-top: 1px solid var(--wire-hair);
}

.page-contact .biz-list li {
  position: relative;
  padding-left: 16px;
  font-family: var(--f-mono);
  font-size: 13px;
  letter-spacing: .02em;
  line-height: 1.6;
  color: var(--c-steel);
}

.page-contact .biz-list li + li {
  margin-top: 8px;
}

.page-contact .biz-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 9px;
  width: 7px;
  height: 1px;
  background: var(--c-orange);
}

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

.page-contact .reply-item {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 16px;
  align-items: start;
  padding: 18px 0;
  border-bottom: 1px solid var(--wire-hair);
}

.page-contact .reply-mark {
  width: 10px;
  height: 10px;
  margin-top: 7px;
  border-radius: 50%;
  background: var(--c-orange);
  box-shadow: 0 0 0 4px rgba(255, 106, 43, .16);
}

.page-contact .reply-copy h3 {
  margin: 0 0 6px;
  font-family: var(--f-display);
  font-weight: 700;
  font-size: 19px;
  letter-spacing: .02em;
  color: var(--c-paper);
}

.page-contact .reply-copy p {
  margin: 0;
  max-width: 52em;
  font-size: 14.5px;
  line-height: 1.75;
  color: var(--c-steel);
}

.page-contact .reply-foot {
  margin: 22px 0 0;
  max-width: 54em;
  font-size: 14px;
  line-height: 1.8;
  color: var(--c-steel-mid);
}

.page-contact .reply-foot a {
  color: var(--c-lime);
  text-decoration: none;
  border-bottom: 1px solid rgba(183, 255, 60, .38);
  transition: border-color var(--dur) var(--ease), color var(--dur) var(--ease);
}

.page-contact .reply-foot a:hover {
  color: var(--c-paper);
  border-bottom-color: var(--c-paper);
}

/* ---------- 窄屏收束 ---------- */
@media (max-width: 640px) {
  .page-contact .contact-hero h1 {
    max-width: 100%;
  }

  .page-contact .fix-step {
    grid-template-columns: minmax(0, 1fr);
    gap: 8px;
  }

  .page-contact .fix-num {
    min-width: 0;
  }

  .page-contact .pc-row dd {
    font-size: 14px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-contact .fb-card,
  .page-contact .check-item,
  .page-contact .check-box,
  .page-contact .check-box::after,
  .page-contact .contact-card,
  .page-contact .biz-card,
  .page-contact .reply-foot a {
    transition: none;
  }

  .page-contact .fb-card:hover {
    transform: none;
  }
}