.page-contact {
  --pc-gap: clamp(22px, 3.4vw, 44px);
  --pc-panel: rgba(10, 33, 25, 0.92);
}

/* ---------- 面包屑 ---------- */
.page-contact .breadcrumb {
  margin-top: clamp(16px, 3vw, 26px);
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.04em;
  color: var(--mute);
}

.page-contact .breadcrumb ol {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-contact .breadcrumb li + li::before {
  content: "/";
  margin-right: 6px;
  color: var(--line);
}

.page-contact .breadcrumb a {
  color: var(--mute);
  text-decoration: none;
}

.page-contact .breadcrumb a:hover {
  color: var(--mint);
}

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

/* ---------- 首屏 ---------- */
.page-contact .coop-hero {
  position: relative;
  overflow: hidden;
  margin-top: clamp(18px, 3vw, 30px);
  padding: clamp(26px, 4.6vw, 54px) 0 clamp(28px, 4vw, 48px);
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.page-contact .coop-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background-image:
    linear-gradient(to right, rgba(63, 240, 196, 0.09) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(63, 240, 196, 0.09) 1px, transparent 1px);
  background-size: 46px 46px;
  -webkit-mask-image: linear-gradient(to bottom, rgba(0, 0, 0, 0.9), rgba(0, 0, 0, 0));
  mask-image: linear-gradient(to bottom, rgba(0, 0, 0, 0.9), rgba(0, 0, 0, 0));
}

.page-contact .coop-hero__inner {
  position: relative;
}

.page-contact .coop-h1 {
  margin: 12px 0 0;
  font-family: var(--font-mark);
  font-size: clamp(46px, 12vw, 112px);
  font-weight: 800;
  line-height: 0.9;
  letter-spacing: -0.015em;
  color: var(--paper);
}

.page-contact .coop-declare {
  margin: 20px 0 0;
  max-width: 34em;
  font-family: var(--font-serif);
  font-size: clamp(17px, 2.3vw, 22px);
  line-height: 1.7;
  color: var(--paper);
}

.page-contact .coop-stats {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1px;
  margin-top: var(--pc-gap);
  border: 1px solid var(--line);
  background: var(--line);
}

.page-contact .coop-stat {
  display: flex;
  flex-direction: column;
  gap: 6px;
  padding: 16px 16px 18px;
  background: var(--ink-2);
  min-width: 0;
}

.page-contact .coop-stat__num {
  font-family: var(--font-mono);
  font-size: clamp(26px, 5vw, 38px);
  font-weight: 800;
  line-height: 1;
  letter-spacing: -0.02em;
  color: var(--mint);
}

.page-contact .coop-stat__label {
  font-size: 12px;
  line-height: 1.5;
  letter-spacing: 0.05em;
  color: var(--mute);
}

/* ---------- 通用区块留白 ---------- */
.page-contact .coop-directions,
.page-contact .coop-flow,
.page-contact .coop-material,
.page-contact .coop-contact,
.page-contact .coop-tip,
.page-contact .coop-facts {
  padding-top: clamp(38px, 6.4vw, 76px);
}

.page-contact .section-head {
  margin-bottom: clamp(18px, 2.4vw, 26px);
}

/* ---------- 可合作方向 ---------- */
.page-contact .dir-figure {
  margin: 0 0 clamp(20px, 3vw, 34px);
  border: 1px solid var(--line);
  aspect-ratio: 14 / 9;
  overflow: hidden;
  background: var(--ink-2);
}

.page-contact .dir-figure img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
  filter: saturate(0.72) contrast(1.06);
}

.page-contact .dir-stack {
  display: grid;
  gap: 12px;
  min-width: 0;
}

.page-contact .dir-card {
  --accent: var(--mint);
  min-width: 0;
  border: 1px solid var(--line);
  border-left: 3px solid var(--accent);
  background: var(--ink-2);
  transition: border-color 180ms ease;
}

.page-contact .dir-card--2 { --accent: var(--blue); }
.page-contact .dir-card--3 { --accent: var(--orange); }
.page-contact .dir-card--4 { --accent: var(--lime); }

.page-contact .dir-card:hover,
.page-contact .dir-card[open] {
  border-color: var(--accent);
}

.page-contact .dir-summary {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr) auto;
  align-items: center;
  gap: 14px;
  padding: 16px 18px;
  cursor: pointer;
  list-style: none;
}

.page-contact .dir-summary::-webkit-details-marker {
  display: none;
}

.page-contact .dir-index {
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.06em;
  color: var(--accent);
}

.page-contact .dir-name {
  font-family: var(--font-serif);
  font-size: clamp(17px, 2.6vw, 24px);
  font-weight: 600;
  line-height: 1.35;
  color: var(--paper);
}

.page-contact .dir-more {
  display: inline-flex;
  align-items: baseline;
  gap: 7px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--mute);
  white-space: nowrap;
}

.page-contact .dir-more::after {
  content: "+";
  font-size: 16px;
  line-height: 1;
  color: var(--accent);
}

.page-contact .dir-card[open] .dir-more::after {
  content: "\2013";
}

.page-contact .dir-body {
  padding: 0 18px 20px;
  border-top: 1px solid var(--line);
  padding-top: 16px;
}

.page-contact .dir-body p {
  margin: 0;
  max-width: 36em;
  font-size: 15px;
  line-height: 1.78;
  color: var(--mute);
}

.page-contact .dir-body a {
  color: var(--mint);
  text-decoration: none;
  border-bottom: 1px solid var(--line);
}

.page-contact .dir-body a:hover {
  border-bottom-color: var(--mint);
}

.page-contact .dir-gains {
  display: grid;
  gap: 12px;
  margin: 16px 0 0;
  padding: 0;
  list-style: none;
}

.page-contact .dir-gains li {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 10px;
  align-items: start;
}

.page-contact .dir-gains li > span:last-child {
  font-size: 14px;
  line-height: 1.75;
  color: var(--paper);
  min-width: 0;
}

.page-contact .tag {
  align-self: start;
  white-space: nowrap;
}

.page-contact .coop-cross {
  margin: var(--pc-gap) 0 0;
  padding-top: 18px;
  border-top: 1px solid var(--line);
  font-size: 14px;
  line-height: 1.8;
  color: var(--mute);
  max-width: 44em;
}

.page-contact .coop-cross a {
  color: var(--mint);
  text-decoration: none;
  border-bottom: 1px solid var(--line);
  margin: 0 2px;
}

.page-contact .coop-cross a:hover {
  border-bottom-color: var(--mint);
}

/* ---------- 洽谈流程 ---------- */
.page-contact .flow {
  margin: 0;
  padding: 0;
  list-style: none;
  border-top: 1px solid var(--line);
}

.page-contact .flow-step {
  display: grid;
  grid-template-columns: 48px minmax(0, 1fr);
  gap: 4px 14px;
  padding: 20px 0;
  border-bottom: 1px solid var(--line);
}

.page-contact .flow-num {
  grid-column: 1;
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.08em;
  color: var(--orange);
  padding-top: 5px;
}

.page-contact .flow-main {
  grid-column: 2;
  min-width: 0;
}

.page-contact .flow-title {
  margin: 0 0 6px;
  font-family: var(--font-serif);
  font-size: 17px;
  font-weight: 600;
  line-height: 1.45;
  color: var(--paper);
}

.page-contact .flow-main p {
  margin: 0;
  font-size: 14px;
  line-height: 1.78;
  color: var(--mute);
  max-width: 36em;
}

.page-contact .flow-time {
  grid-column: 2;
  margin-top: 8px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.05em;
  color: var(--mint);
}

/* ---------- 材料清单 ---------- */
.page-contact .material-list {
  display: grid;
  gap: 1px;
  margin: 0;
  padding: 0;
  list-style: none;
  border: 1px solid var(--line);
  background: var(--line);
}

.page-contact .material-item {
  display: grid;
  grid-template-columns: 26px minmax(0, 1fr);
  gap: 14px;
  padding: 16px 18px;
  background: var(--ink-2);
  min-width: 0;
}

.page-contact .material-box {
  display: block;
  width: 18px;
  height: 18px;
  margin-top: 3px;
  border: 1px solid var(--mint);
  background:
    linear-gradient(135deg, transparent 46%, rgba(63, 240, 196, 0.35) 46%, rgba(63, 240, 196, 0.35) 54%, transparent 54%);
}

.page-contact .material-body {
  min-width: 0;
}

.page-contact .material-name {
  margin: 0 0 5px;
  font-family: var(--font-serif);
  font-size: 16px;
  font-weight: 600;
  line-height: 1.5;
  color: var(--paper);
}

.page-contact .material-desc {
  margin: 0;
  font-size: 14px;
  line-height: 1.75;
  color: var(--mute);
  max-width: 38em;
}

/* ---------- 联系信息面板 ---------- */
.page-contact .contact-panel {
  position: relative;
  overflow: hidden;
  border: 1px solid var(--line);
  background: var(--ink-2);
}

.page-contact .contact-panel::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: 1;
  background: linear-gradient(180deg, rgba(4, 20, 15, 0.72), rgba(4, 20, 15, 0.95));
}

.page-contact .contact-panel__media {
  position: absolute;
  inset: 0;
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0.85;
}

.page-contact .contact-panel__inner {
  position: relative;
  z-index: 2;
  padding: clamp(22px, 4vw, 44px);
}

.page-contact .contact-panel h2 {
  margin: 10px 0 0;
  font-family: var(--font-serif);
  font-size: clamp(20px, 3.4vw, 30px);
  font-weight: 600;
  line-height: 1.35;
  color: var(--paper);
}

.page-contact .contact-grid {
  display: grid;
  gap: 18px;
  margin-top: clamp(20px, 3vw, 30px);
}

.page-contact .contact-item {
  display: grid;
  gap: 6px;
  padding-bottom: 14px;
  border-bottom: 1px solid var(--line);
  min-width: 0;
}

.page-contact .contact-key {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--mint);
}

.page-contact .contact-value {
  font-family: var(--font-mono);
  font-size: clamp(14px, 2vw, 18px);
  font-weight: 700;
  line-height: 1.5;
  color: var(--paper);
  word-break: break-all;
  user-select: all;
}

.page-contact .contact-note {
  margin: clamp(18px, 2.6vw, 26px) 0 0;
  max-width: 40em;
  font-size: 13px;
  line-height: 1.8;
  color: var(--mute);
}

/* ---------- 截图提示 ---------- */
.page-contact .shot-tip {
  padding: clamp(20px, 3.4vw, 32px);
  border: 1px solid var(--orange);
  border-left-width: 3px;
  background: var(--orange-bg);
}

.page-contact .shot-tip .kicker {
  color: var(--orange);
}

.page-contact .shot-tip h2 {
  margin: 10px 0 0;
  font-family: var(--font-serif);
  font-size: clamp(19px, 3vw, 26px);
  font-weight: 600;
  line-height: 1.4;
  color: var(--paper);
}

.page-contact .shot-tip p:last-child {
  margin: 12px 0 0;
  max-width: 40em;
  font-size: 14px;
  line-height: 1.8;
  color: var(--paper);
}

/* ---------- 站点信息 ---------- */
.page-contact .facts-title {
  margin: 0;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--mint);
  font-family: var(--font-serif);
  font-size: clamp(19px, 3vw, 26px);
  font-weight: 600;
  color: var(--paper);
}

.page-contact .facts-list {
  display: grid;
  gap: 0;
  margin: 0;
  padding: 0;
}

.page-contact .facts-row {
  display: grid;
  grid-template-columns: 118px minmax(0, 1fr);
  gap: 12px;
  align-items: baseline;
  padding: 14px 0;
  border-bottom: 1px solid var(--line);
}

.page-contact .facts-row dt {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.05em;
  color: var(--mute);
}

.page-contact .facts-row dd {
  margin: 0;
  font-size: 15px;
  line-height: 1.65;
  color: var(--paper);
  min-width: 0;
}

.page-contact .facts-note {
  margin: 22px 0 0;
  max-width: 44em;
  font-size: 14px;
  line-height: 1.85;
  color: var(--mute);
}

.page-contact .facts-note a {
  color: var(--mint);
  text-decoration: none;
  border-bottom: 1px solid var(--line);
  margin: 0 2px;
}

.page-contact .facts-note a:hover {
  border-bottom-color: var(--mint);
}

/* ---------- 中屏 ---------- */
@media (min-width: 720px) {
  .page-contact .coop-stats {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

  .page-contact .contact-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 22px 32px;
  }

  .page-contact .facts-list {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    column-gap: 40px;
  }
}

/* ---------- 宽屏 ---------- */
@media (min-width: 900px) {
  .page-contact .dir-card--2 { width: 82%; }
  .page-contact .dir-card--3 { width: 64%; }
  .page-contact .dir-card--4 { width: 46%; }

  .page-contact .flow-step {
    grid-template-columns: 60px minmax(0, 1fr) 168px;
    align-items: baseline;
    gap: 14px;
  }

  .page-contact .flow-time {
    grid-column: 3;
    margin-top: 0;
    text-align: right;
  }

  .page-contact .material-item {
    grid-template-columns: 26px minmax(0, 1fr);
    padding: 20px 22px;
  }
}

@media (min-width: 1080px) {
  .page-contact .dir-summary {
    padding: 20px 24px;
  }

  .page-contact .dir-body {
    padding: 18px 24px 24px;
  }

  .page-contact .dir-gains li {
    gap: 14px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-contact .dir-card {
    transition: none;
  }
}