.page-contact {
  --co-gap: 18px;
  --co-shadow: 5px 5px 0 rgba(22, 25, 29, .08);
  --co-shadow-strong: 6px 6px 0 rgba(22, 25, 29, .14);
  background: var(--paper);
  color: var(--text);
  font-family: var(--font-sans);
  line-height: 1.75;
}

/* ---------- 首屏 ---------- */
.page-contact .co-hero {
  position: relative;
  overflow: hidden;
  background: var(--night);
  color: #fff;
  padding-top: 26px;
  padding-bottom: 42px;
  border-bottom: 1px solid var(--line);
}

.page-contact .co-hero::before {
  content: "";
  position: absolute;
  top: -32%;
  right: -14%;
  width: 82%;
  height: 172%;
  background: linear-gradient(155deg, var(--teal) 0%, var(--night) 72%);
  transform: skewX(-14deg);
  opacity: .85;
  pointer-events: none;
}

.page-contact .co-hero::after {
  content: "";
  position: absolute;
  left: -10%;
  bottom: -44px;
  width: 48%;
  height: 88px;
  background: var(--orange);
  transform: skewX(-24deg);
  opacity: .92;
  pointer-events: none;
}

.page-contact .co-hero__inner {
  position: relative;
  z-index: 1;
  display: grid;
  gap: 26px;
}

.page-contact .co-hero .breadcrumb-list {
  display: flex;
  flex-wrap: wrap;
  gap: 4px;
  margin: 0;
  padding: 0;
  list-style: none;
  font-family: var(--font-mono);
  font-size: .72rem;
  letter-spacing: .08em;
}

.page-contact .co-hero .breadcrumb-item {
  color: rgba(255, 255, 255, .6);
}

.page-contact .co-hero .breadcrumb-item a {
  color: rgba(255, 255, 255, .6);
  text-decoration: none;
}

.page-contact .co-hero .breadcrumb-item + .breadcrumb-item::before {
  content: "/";
  margin-right: 6px;
  color: rgba(255, 255, 255, .3);
}

.page-contact .co-hero .eyebrow {
  margin: 18px 0 0;
  font-family: var(--font-mono);
  font-size: .74rem;
  letter-spacing: .16em;
  color: var(--orange-soft);
  text-transform: uppercase;
}

.page-contact .co-hero h1 {
  margin: 12px 0 0;
  max-width: 22ch;
  font-size: clamp(1.85rem, 5.6vw, 3.1rem);
  line-height: 1.2;
  font-weight: 800;
  letter-spacing: -.02em;
}

.page-contact .co-hero__lead {
  margin: 16px 0 0;
  max-width: 46ch;
  font-size: 1rem;
  line-height: 1.85;
  color: rgba(255, 255, 255, .82);
}

.page-contact .co-hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 22px;
}

.page-contact .co-hero__actions .btn--ghost {
  border-color: rgba(255, 255, 255, .45);
  color: #fff;
}

.page-contact .co-hero__facts {
  display: flex;
  flex-wrap: wrap;
  gap: 12px 26px;
  margin: 26px 0 0;
  padding: 16px 0 0;
  list-style: none;
  border-top: 1px solid rgba(255, 255, 255, .22);
}

.page-contact .co-hero__facts li {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.page-contact .co-hero__num {
  font-size: 1.6rem;
  font-weight: 600;
  color: var(--orange-soft);
  line-height: 1;
}

.page-contact .co-hero__unit {
  font-size: .8rem;
  letter-spacing: .04em;
  color: rgba(255, 255, 255, .68);
}

.page-contact .co-hero__media {
  position: relative;
  border: 1px solid rgba(255, 255, 255, .3);
  background: var(--orange-soft);
  clip-path: polygon(0 0, 100% 0, 100% 84%, 86% 100%, 0 100%);
  box-shadow: 6px 6px 0 rgba(224, 112, 58, .35);
}

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

/* ---------- 双栏骨架 ---------- */
.page-contact .co-body {
  display: grid;
  gap: var(--co-gap);
  padding-top: 34px;
  padding-bottom: 56px;
}

.page-contact .co-main {
  display: grid;
  gap: 34px;
  min-width: 0;
}

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

.page-contact .co-side__sticky {
  display: grid;
  gap: 16px;
}

.page-contact .section-head {
  margin-bottom: 20px;
}

.page-contact .co-main .eyebrow {
  margin: 0;
  font-family: var(--font-mono);
  font-size: .74rem;
  letter-spacing: .14em;
  color: var(--orange);
  text-transform: uppercase;
}

.page-contact .co-main .section-title {
  margin: 8px 0 0;
  font-size: clamp(1.35rem, 3.4vw, 1.9rem);
  line-height: 1.35;
  font-weight: 700;
  color: var(--ink);
}

.page-contact .co-main .section-lead {
  margin: 12px 0 0;
  max-width: 62ch;
  color: var(--g1);
  font-size: .95rem;
  line-height: 1.85;
}

/* ---------- 合作方向 ---------- */
.page-contact .co-dirs {
  display: grid;
  gap: 10px;
}

.page-contact .co-dir {
  --dir-color: var(--orange);
  border: 1px solid var(--line);
  border-left: 4px solid var(--dir-color);
  background: #fff;
  box-shadow: var(--co-shadow);
}

.page-contact .co-dir--orange { --dir-color: var(--orange); }
.page-contact .co-dir--green { --dir-color: var(--green); }
.page-contact .co-dir--teal { --dir-color: var(--teal); }
.page-contact .co-dir--red { --dir-color: var(--red); }
.page-contact .co-dir--amber { --dir-color: var(--amber); }

.page-contact .co-dir > summary {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px 14px;
  padding: 20px 16px;
  cursor: pointer;
  list-style: none;
  transition: background-color .2s var(--ease);
}

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

.page-contact .co-dirs .co-dir:nth-child(1) > summary { padding-block: 26px; }
.page-contact .co-dirs .co-dir:nth-child(2) > summary { padding-block: 18px; }
.page-contact .co-dirs .co-dir:nth-child(3) > summary { padding-block: 24px; }
.page-contact .co-dirs .co-dir:nth-child(4) > summary { padding-block: 17px; }
.page-contact .co-dirs .co-dir:nth-child(5) > summary { padding-block: 22px; }

.page-contact .co-dir > summary:hover {
  background: rgba(247, 205, 174, .22);
}

.page-contact .co-dir__num {
  font-size: .82rem;
  letter-spacing: .1em;
  color: var(--dir-color);
}

.page-contact .co-dir__title {
  font-size: 1.06rem;
  font-weight: 700;
  color: var(--ink);
}

.page-contact .co-dir__toggle {
  margin-left: auto;
  flex: 0 0 auto;
  padding: 3px 10px;
  border: 1px solid var(--line);
  font-family: var(--font-mono);
  font-size: .68rem;
  letter-spacing: .1em;
  color: var(--g1);
}

.page-contact .co-dir__toggle::after { content: "展开"; }
.page-contact .co-dir[open] .co-dir__toggle::after { content: "收起"; }

.page-contact .co-dir[open] > summary {
  border-bottom: 1px dashed var(--line);
}

.page-contact .co-dir__body {
  padding: 6px 16px 18px;
  background: linear-gradient(180deg, rgba(247, 241, 230, .7), rgba(255, 255, 255, 0));
}

.page-contact .co-dir__field {
  margin: 0;
  padding: 12px 0;
  border-top: 1px dashed var(--line);
  font-size: .92rem;
  color: var(--text);
  line-height: 1.8;
}

.page-contact .co-dir__field:first-child { border-top: 0; }

.page-contact .co-dir__label {
  display: block;
  margin-bottom: 3px;
  font-family: var(--font-mono);
  font-size: .7rem;
  letter-spacing: .12em;
  color: var(--g1);
}

/* ---------- 章节配图 ---------- */
.page-contact .co-figure {
  margin: 26px 0 0;
}

.page-contact .co-figure img {
  display: block;
  width: 100%;
  height: auto;
  border: 1px solid var(--line);
  box-shadow: var(--co-shadow-strong);
  object-fit: cover;
}

.page-contact .co-figure figcaption {
  margin-top: 10px;
  max-width: 62ch;
  font-size: .8rem;
  letter-spacing: .02em;
  color: var(--g1);
  line-height: 1.75;
  padding-left: 12px;
  border-left: 3px solid var(--orange-soft);
}

/* ---------- 收益对照 ---------- */
.page-contact .co-table-wrap {
  overflow-x: auto;
  border: 1px solid var(--line);
  box-shadow: var(--co-shadow);
  background: #fff;
}

.page-contact .co-benefit {
  width: 100%;
  min-width: 480px;
  border-collapse: collapse;
  font-size: .92rem;
}

.page-contact .co-benefit thead th {
  padding: 12px 14px;
  background: var(--teal);
  color: #fff;
  font-family: var(--font-mono);
  font-size: .74rem;
  font-weight: 500;
  letter-spacing: .12em;
  text-align: left;
}

.page-contact .co-benefit tbody th {
  width: 34%;
  padding: 14px;
  text-align: left;
  font-weight: 700;
  color: var(--ink);
  vertical-align: top;
  border-top: 1px solid var(--line);
  background: rgba(247, 241, 230, .55);
}

.page-contact .co-benefit tbody td {
  padding: 14px;
  vertical-align: top;
  color: var(--text);
  line-height: 1.8;
  border-top: 1px solid var(--line);
}

.page-contact .co-benefit tbody tr:nth-child(even) th { background: rgba(231, 235, 233, .5); }

/* ---------- 流程 ---------- */
.page-contact .co-flow {
  display: grid;
  gap: 16px;
  margin: 0;
  padding: 0;
  list-style: none;
  counter-reset: none;
}

.page-contact .co-flow__item {
  position: relative;
  padding: 20px 16px 18px;
  background: #fff;
  border: 1px solid var(--line);
  box-shadow: var(--co-shadow);
}

.page-contact .co-flow__item::before {
  content: "";
  display: block;
  width: 46px;
  height: 8px;
  margin-bottom: 14px;
  background: var(--orange);
  transform: skewX(-22deg);
}

.page-contact .co-flow__item:nth-child(2)::before { background: var(--green); }
.page-contact .co-flow__item:nth-child(3)::before { background: var(--teal); }
.page-contact .co-flow__item:nth-child(4)::before { background: var(--amber); }

.page-contact .co-flow__step {
  font-size: .72rem;
  letter-spacing: .16em;
  color: var(--g1);
}

.page-contact .co-flow__title {
  margin: 6px 0 0;
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--ink);
}

.page-contact .co-flow__time {
  margin: 6px 0 0;
  font-size: .78rem;
  letter-spacing: .06em;
  color: var(--orange);
}

.page-contact .co-flow__text {
  margin: 10px 0 0;
  font-size: .9rem;
  line-height: 1.85;
  color: var(--text);
}

.page-contact .co-flow__more {
  margin-top: 12px;
  border-top: 1px dashed var(--line);
  padding-top: 10px;
}

.page-contact .co-flow__more > summary {
  display: flex;
  align-items: center;
  gap: 8px;
  cursor: pointer;
  list-style: none;
  font-size: .82rem;
  color: var(--teal);
}

.page-contact .co-flow__more > summary::-webkit-details-marker { display: none; }

.page-contact .co-flow__toggle {
  margin-left: auto;
  font-family: var(--font-mono);
  font-size: .68rem;
  color: var(--g1);
}

.page-contact .co-flow__toggle::after { content: "+"; }
.page-contact .co-flow__more[open] .co-flow__toggle::after { content: "−"; }

.page-contact .co-flow__more p {
  margin: 10px 0 0;
  font-size: .84rem;
  line-height: 1.8;
  color: var(--g1);
  padding-left: 12px;
  border-left: 3px solid var(--orange-soft);
}

/* ---------- 需求清单 ---------- */
.page-contact .co-check {
  display: grid;
  gap: 2px;
  margin: 0;
  padding: 0;
  list-style: none;
  border: 1px solid var(--line);
  background: #fff;
  box-shadow: var(--co-shadow);
}

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

.page-contact .co-check__item:first-child { border-top: 0; }

.page-contact .co-check__item label {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  padding: 14px 16px;
  cursor: pointer;
  transition: background-color .2s var(--ease);
}

.page-contact .co-check__item label:hover {
  background: rgba(247, 205, 174, .2);
}

.page-contact .co-check__item input[type="checkbox"] {
  flex: 0 0 auto;
  width: 17px;
  height: 17px;
  margin-top: 4px;
  accent-color: var(--orange);
}

.page-contact .co-check__text {
  font-size: .92rem;
  line-height: 1.75;
}

.page-contact .co-note {
  margin-top: 18px;
  padding: 18px 18px 18px 20px;
  background: var(--orange-soft);
  border-left: 5px solid var(--orange);
}

.page-contact .co-note__label {
  margin: 0 0 8px;
  font-size: .72rem;
  letter-spacing: .14em;
  color: var(--orange-deep);
}

.page-contact .co-note p {
  margin: 0;
  font-size: .92rem;
  line-height: 1.85;
  color: var(--ink);
}

/* ---------- 联系卡片 ---------- */
.page-contact .co-card {
  position: relative;
  padding: 24px 20px 22px;
  background: var(--teal);
  color: #fff;
  clip-path: polygon(0 0, calc(100% - 30px) 0, 100% 30px, 100% 100%, 0 100%);
  box-shadow: var(--co-shadow-strong);
}

.page-contact .co-card::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 6px;
  height: 100%;
  background: var(--orange);
}

.page-contact .co-card__eyebrow {
  margin: 0;
  font-size: .72rem;
  letter-spacing: .16em;
  color: var(--orange-soft);
}

.page-contact .co-card__title {
  margin: 8px 0 0;
  font-size: 1.35rem;
  font-weight: 700;
  color: #fff;
}

.page-contact .co-card__lead {
  margin: 10px 0 0;
  font-size: .86rem;
  line-height: 1.8;
  color: rgba(255, 255, 255, .78);
}

.page-contact .co-card__list {
  margin: 18px 0 0;
  display: grid;
  gap: 14px;
}

.page-contact .co-card__row {
  padding-top: 12px;
  border-top: 1px solid rgba(255, 255, 255, .22);
}

.page-contact .co-card__row:first-child {
  padding-top: 0;
  border-top: 0;
}

.page-contact .co-card__key {
  font-size: .7rem;
  letter-spacing: .14em;
  color: rgba(255, 255, 255, .6);
}

.page-contact .co-card__val {
  margin: 4px 0 0;
  font-size: 1.02rem;
  font-weight: 600;
  line-height: 1.6;
  word-break: break-word;
}

.page-contact .co-card__val--sm {
  font-size: .92rem;
  font-weight: 400;
  line-height: 1.7;
}

/* ---------- 服务时间 ---------- */
.page-contact .co-hours {
  padding: 20px;
  background: #fff;
  border: 1px solid var(--line);
  box-shadow: var(--co-shadow);
}

.page-contact .co-hours__title {
  margin: 0;
  font-size: 1rem;
  font-weight: 700;
  color: var(--ink);
}

.page-contact .co-hours__text {
  margin: 10px 0 0;
  font-size: .88rem;
  line-height: 1.85;
  color: var(--text);
}

.page-contact .co-hours__list {
  margin: 14px 0 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 8px;
}

.page-contact .co-hours__list li {
  display: flex;
  align-items: flex-start;
  gap: 8px;
  font-size: .84rem;
  color: var(--g1);
  line-height: 1.7;
}

.page-contact .co-hours__list .status-dot {
  flex: 0 0 auto;
  margin-top: 7px;
}

.page-contact .co-hours__more {
  margin: 14px 0 0;
  padding-top: 12px;
  border-top: 1px dashed var(--line);
  font-size: .84rem;
  line-height: 1.8;
  color: var(--g1);
}

.page-contact .co-hours__more a {
  color: var(--teal);
  text-decoration: underline;
  text-underline-offset: 2px;
}

/* ---------- 响应式 ---------- */
@media (min-width: 600px) {
  .page-contact .co-dir__field {
    display: grid;
    grid-template-columns: 92px minmax(0, 1fr);
    gap: 14px;
    align-items: baseline;
  }

  .page-contact .co-dir__label {
    margin-bottom: 0;
  }

  .page-contact .co-flow {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 18px;
  }

  .page-contact .co-hero__facts {
    gap: 14px 36px;
  }
}

@media (min-width: 900px) {
  .page-contact {
    --co-gap: 26px;
  }

  .page-contact .co-hero {
    padding-top: 34px;
    padding-bottom: 58px;
  }

  .page-contact .co-hero__inner {
    grid-template-columns: minmax(0, 1.12fr) minmax(0, .88fr);
    align-items: center;
    gap: 44px;
  }

  .page-contact .co-hero__media {
    margin-top: -10px;
  }

  .page-contact .co-flow {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

  .page-contact .co-body {
    padding-top: 46px;
    padding-bottom: 72px;
  }
}

@media (min-width: 1024px) {
  .page-contact .co-body {
    grid-template-columns: minmax(0, 1.62fr) minmax(0, 1fr);
    gap: 46px;
    align-items: start;
  }

  .page-contact .co-side__sticky {
    position: sticky;
    top: calc(var(--top-h) + 22px);
  }

  .page-contact .co-main {
    gap: 46px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-contact .co-dir > summary,
  .page-contact .co-check__item label {
    transition: none;
  }
}