.page-contact {
  --co-block-pad: clamp(44px, 7vw, 92px);
  --co-soft: rgba(242, 245, 243, .72);
  --co-softer: rgba(242, 245, 243, .58);
  --co-ink-text: rgba(11, 35, 28, .82);
  position: relative;
  overflow-x: clip;
}

.page-contact .crumbs {
  margin: clamp(16px, 3vw, 28px) 0 clamp(8px, 1.6vw, 16px);
}

/* ---------- Hero ---------- */

.page-contact .co-hero {
  position: relative;
  padding: clamp(8px, 1.8vw, 20px) 0 clamp(34px, 6vw, 74px);
}

.page-contact .co-hero::before {
  content: "";
  position: absolute;
  top: -32%;
  right: -14%;
  width: min(620px, 82vw);
  height: min(620px, 82vw);
  background: radial-gradient(circle at 50% 50%, rgba(255, 176, 32, .15), transparent 66%);
  pointer-events: none;
}

.page-contact .co-hero__grid {
  position: relative;
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(26px, 4vw, 52px);
}

.page-contact .co-hero__kicker {
  margin: 0 0 14px;
  font-family: var(--font-mono);
  font-size: 12.5px;
  letter-spacing: .22em;
  text-transform: uppercase;
  color: var(--cyan);
}

.page-contact .co-hero__title {
  margin: 0 0 20px;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(32px, 7vw, 60px);
  line-height: 1.06;
  letter-spacing: -.02em;
  color: var(--paper);
  max-width: 16ch;
}

.page-contact .co-hero__lead {
  margin: 0;
  max-width: 58ch;
  font-size: clamp(15.5px, 1.7vw, 17px);
  line-height: 1.8;
  color: var(--co-soft);
}

.page-contact .co-hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: clamp(22px, 3vw, 32px);
}

.page-contact .co-hero__card {
  position: relative;
  padding: clamp(20px, 3vw, 30px);
  border: 1px solid var(--line-strong);
  border-radius: var(--radius);
  background: linear-gradient(165deg, rgba(18, 51, 40, .95), rgba(8, 25, 20, .95));
  box-shadow: 7px 7px 0 rgba(18, 137, 124, .2), 14px 14px 0 rgba(232, 228, 216, .05);
}

.page-contact .co-hero__card-label {
  margin: 0 0 18px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .2em;
  color: var(--grey);
  text-transform: uppercase;
}

.page-contact .co-hero__facts {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 16px;
}

.page-contact .co-hero__facts li {
  display: grid;
  grid-template-columns: auto 1fr;
  align-items: baseline;
  gap: 14px;
  padding-bottom: 14px;
  border-bottom: 1px solid var(--line);
}

.page-contact .co-hero__facts li:last-child {
  padding-bottom: 0;
  border-bottom: 0;
}

.page-contact .co-hero__num {
  font-family: var(--font-mono);
  font-size: clamp(28px, 4.4vw, 40px);
  font-weight: 700;
  line-height: 1;
  color: var(--amber);
  letter-spacing: -.02em;
}

.page-contact .co-hero__fact-text {
  font-size: 14.5px;
  line-height: 1.6;
  color: var(--co-soft);
}

/* ---------- 区块节奏 ---------- */

.page-contact .co-block {
  padding-top: var(--co-block-pad);
  padding-bottom: var(--co-block-pad);
}

.page-contact .co-block--turf {
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  background:
    repeating-linear-gradient(90deg, rgba(18, 137, 124, .07) 0 44px, transparent 44px 88px),
    linear-gradient(180deg, rgba(18, 51, 40, .58), rgba(11, 35, 28, .1));
}

/* ---------- 章号 ---------- */

.page-contact .chapter {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 10px 18px;
  padding-bottom: 14px;
  margin-bottom: clamp(20px, 3vw, 34px);
  border-bottom: 2px solid var(--line-strong);
}

.page-contact .chapter__num {
  font-family: var(--font-mono);
  font-size: clamp(26px, 4vw, 38px);
  font-weight: 700;
  line-height: 1;
  color: var(--amber);
  letter-spacing: -.02em;
}

.page-contact .chapter__title {
  flex: 1 1 auto;
  margin: 0;
  font-family: var(--font-display);
  font-size: clamp(21px, 3.3vw, 33px);
  font-weight: 700;
  line-height: 1.18;
  letter-spacing: -.015em;
  color: var(--paper);
}

.page-contact .chapter__meta {
  margin-left: auto;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .18em;
  color: var(--grey);
  text-transform: uppercase;
}

.page-contact .chapter--panel {
  border-bottom-color: rgba(255, 176, 32, .4);
}

/* ---------- 图片 ---------- */

.page-contact .co-media {
  margin: 0 0 clamp(24px, 4vw, 44px);
}

.page-contact .co-media img {
  display: block;
  width: 100%;
  height: auto;
  max-width: 100%;
  border-radius: var(--radius);
  object-fit: cover;
}

.page-contact .co-media--frame {
  padding: 10px;
  border: 2px solid var(--line-strong);
  border-radius: calc(var(--radius) + 5px);
  background: var(--ink-2);
}

.page-contact .co-media--frame img {
  border-radius: calc(var(--radius) - 3px);
}

.page-contact .co-contact-media {
  margin-bottom: clamp(20px, 3vw, 34px);
}

/* ---------- 01 合作方向 ---------- */

.page-contact .co-dirs {
  display: grid;
  grid-template-columns: 1fr;
  align-items: start;
  gap: clamp(16px, 2.4vw, 26px);
}

.page-contact .co-dir {
  position: relative;
  display: flex;
  flex-direction: column;
  padding: clamp(20px, 2.6vw, 28px);
  border: 1px solid var(--line);
  border-top: 3px solid var(--cyan-2);
  border-radius: var(--radius);
  background: var(--ink-2);
  transition: transform .3s ease, background .3s ease, border-color .3s ease;
}

.page-contact .co-dir:hover,
.page-contact .co-dir:focus-within {
  transform: translateY(-5px);
  background: var(--ink-4);
  border-top-color: var(--amber);
}

.page-contact .co-dir__no {
  position: absolute;
  top: 12px;
  right: 18px;
  font-family: var(--font-mono);
  font-size: clamp(30px, 4vw, 44px);
  font-weight: 700;
  line-height: 1;
  color: rgba(47, 224, 200, .18);
  pointer-events: none;
}

.page-contact .co-dir .tag {
  align-self: flex-start;
  margin-bottom: 14px;
}

.page-contact .co-dir__title {
  margin: 0 0 10px;
  font-family: var(--font-display);
  font-size: clamp(19px, 2.2vw, 23px);
  font-weight: 700;
  line-height: 1.25;
  letter-spacing: -.01em;
  color: var(--paper);
}

.page-contact .co-dir__for {
  margin: 0 0 14px;
  font-family: var(--font-mono);
  font-size: 12.5px;
  line-height: 1.55;
  letter-spacing: .02em;
  color: var(--cyan);
}

.page-contact .co-dir__text {
  margin: 0;
  font-size: 15px;
  line-height: 1.75;
  color: var(--co-soft);
}

.page-contact .co-dir__extra {
  margin-top: 16px;
  padding-top: 16px;
  border-top: 1px dashed var(--line);
}

.page-contact .co-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 10px;
  font-size: 14.5px;
  line-height: 1.68;
  color: var(--co-softer);
}

.page-contact .co-list li {
  position: relative;
  padding-left: 18px;
}

.page-contact .co-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: .66em;
  width: 9px;
  height: 2px;
  background: var(--cyan);
}

.page-contact .co-list a {
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px solid rgba(47, 224, 200, .4);
}

.page-contact .co-list a:hover {
  border-bottom-color: var(--cyan);
}

@media (hover: hover) and (min-width: 980px) {
  .page-contact .co-dir__extra {
    max-height: 0;
    margin-top: 0;
    padding-top: 0;
    border-top-color: transparent;
    opacity: 0;
    overflow: hidden;
    transition: max-height .34s ease, opacity .3s ease, margin-top .34s ease, padding-top .34s ease;
  }

  .page-contact .co-dir:hover .co-dir__extra,
  .page-contact .co-dir:focus-within .co-dir__extra {
    max-height: 300px;
    margin-top: 16px;
    padding-top: 16px;
    border-top-color: var(--line);
    opacity: 1;
  }
}

@media (min-width: 980px) {
  .page-contact .co-dirs {
    grid-template-columns: repeat(12, minmax(0, 1fr));
  }

  .page-contact .co-dir:nth-child(1) { grid-column: span 5; }
  .page-contact .co-dir:nth-child(2) { grid-column: span 4; margin-top: 30px; }
  .page-contact .co-dir:nth-child(3) { grid-column: span 3; margin-top: 60px; }
}

/* ---------- 02 材料清单 ---------- */

.page-contact .co-mats {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(16px, 2.4vw, 26px);
}

.page-contact .co-mat {
  position: relative;
  padding: clamp(18px, 2.4vw, 26px);
  border: 2px solid var(--ink-3);
  border-radius: var(--radius);
  background: var(--cream);
  box-shadow: 6px 6px 0 var(--cyan-2);
}

.page-contact .co-mat__head {
  margin: 0;
  display: flex;
  align-items: baseline;
  gap: 12px;
  font-family: var(--font-display);
  font-size: clamp(17px, 2vw, 20px);
  font-weight: 700;
  color: var(--ink);
  letter-spacing: -.005em;
}

.page-contact .co-mat__head .num {
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: .16em;
  color: var(--cyan-2);
}

.page-contact .co-check {
  list-style: none;
  margin: 16px 0 0;
  padding: 0;
  display: grid;
  gap: 11px;
}

.page-contact .co-check li {
  position: relative;
  padding-left: 28px;
  font-size: 14.5px;
  line-height: 1.68;
  color: var(--co-ink-text);
}

.page-contact .co-check li::before {
  content: "✓";
  position: absolute;
  left: 0;
  top: .22em;
  width: 18px;
  height: 18px;
  display: grid;
  place-items: center;
  border-radius: 4px;
  background: var(--amber);
  color: var(--ink);
  font-size: 11.5px;
  font-weight: 700;
  line-height: 1;
}

.page-contact .co-check--dark li {
  color: var(--co-soft);
}

.page-contact .co-check--dark {
  margin-top: 20px;
}

.page-contact .co-check--dark li::before {
  background: var(--cyan-2);
  color: var(--paper);
}

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

  .page-contact .co-mat:nth-child(2) { margin-top: 26px; }
  .page-contact .co-mat:nth-child(3) { margin-top: 52px; }
}

/* ---------- 03 流程 ---------- */

.page-contact .co-flow {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: 1fr;
}

.page-contact .co-step {
  position: relative;
  margin-left: 9px;
  padding: 0 0 clamp(26px, 3.4vw, 36px) 34px;
  border-left: 2px solid var(--line);
}

.page-contact .co-step:last-child {
  padding-bottom: 0;
  border-left-color: transparent;
}

.page-contact .co-step__dot {
  position: absolute;
  left: -9px;
  top: 4px;
  width: 16px;
  height: 16px;
  border-radius: 50%;
  background: var(--ink);
  border: 3px solid var(--cyan);
  transition: background .25s ease, border-color .25s ease, transform .25s ease;
}

.page-contact .co-step:hover .co-step__dot,
.page-contact .co-step:focus-within .co-step__dot {
  background: var(--amber);
  border-color: var(--amber-2);
  transform: scale(1.22);
}

.page-contact .co-step__no {
  display: block;
  margin-bottom: 8px;
  font-family: var(--font-mono);
  font-size: 12.5px;
  letter-spacing: .2em;
  color: var(--amber);
}

.page-contact .co-step__title {
  margin: 0 0 8px;
  font-family: var(--font-display);
  font-size: clamp(17px, 1.8vw, 20px);
  font-weight: 700;
  line-height: 1.3;
  color: var(--paper);
}

.page-contact .co-step__text {
  margin: 0 0 12px;
  font-size: 14.5px;
  line-height: 1.72;
  color: var(--co-soft);
}

.page-contact .co-step__time {
  display: inline-block;
  padding: 3px 11px;
  border: 1px solid rgba(47, 224, 200, .3);
  border-radius: var(--radius-pill);
  background: rgba(47, 224, 200, .09);
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .04em;
  color: var(--cyan);
}

@media (min-width: 900px) {
  .page-contact .co-flow {
    grid-template-columns: repeat(5, minmax(0, 1fr));
  }

  .page-contact .co-step {
    margin-left: 0;
    padding: 36px 20px 0 0;
    border-left: 0;
    border-top: 2px solid var(--line);
  }

  .page-contact .co-step:last-child {
    border-top-color: var(--line);
  }

  .page-contact .co-step__dot {
    left: 0;
    top: -9px;
  }

  .page-contact .co-step:hover,
  .page-contact .co-step:focus-within {
    border-top-color: var(--amber);
  }
}

/* ---------- 04 勘误 ---------- */

.page-contact .co-fix__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(24px, 3.6vw, 46px);
}

.page-contact .co-fix__lead {
  margin: 0;
  max-width: 62ch;
  font-size: 15.5px;
  line-height: 1.8;
  color: var(--co-soft);
}

.page-contact .co-fix__more {
  margin: clamp(20px, 2.6vw, 28px) 0 0;
  font-size: 14.5px;
  line-height: 1.75;
  color: var(--co-softer);
}

.page-contact .co-fix__more a {
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px solid rgba(47, 224, 200, .4);
}

.page-contact .co-fix__panel {
  padding: clamp(20px, 2.6vw, 30px);
  border: 1px solid var(--line-strong);
  border-left: 4px solid var(--amber);
  border-radius: var(--radius);
  background: var(--ink-2);
  align-self: start;
}

.page-contact .co-fix__panel-label {
  margin: 0 0 14px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .2em;
  color: var(--grey);
  text-transform: uppercase;
}

.page-contact .co-fix__code {
  margin: 0 0 14px;
  font-family: var(--font-mono);
  font-size: clamp(14.5px, 1.8vw, 18px);
  font-weight: 600;
  line-height: 1.55;
  color: var(--amber);
  word-break: break-word;
}

.page-contact .co-fix__hint,
.page-contact .co-fix__note {
  margin: 0;
  font-size: 14px;
  line-height: 1.72;
  color: var(--co-soft);
}

.page-contact .co-fix__note {
  padding-top: 14px;
  border-top: 1px dashed var(--line);
  color: var(--co-softer);
}

.page-contact .co-fix__bars {
  display: flex;
  gap: 6px;
  margin: 18px 0 0;
}

.page-contact .co-fix__bars span {
  flex: 1 1 auto;
  height: 4px;
  border-radius: 2px;
  background: rgba(47, 224, 200, .3);
}

.page-contact .co-fix__bars span:first-child {
  background: var(--amber);
  flex: 0 0 34%;
}

@media (min-width: 900px) {
  .page-contact .co-fix__grid {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
    align-items: start;
  }
}

/* ---------- 05 联系方式 ---------- */

.page-contact .co-contact__panel {
  position: relative;
  padding: clamp(24px, 4vw, 50px);
  border: 2px solid var(--line-strong);
  border-radius: calc(var(--radius) + 5px);
  overflow: hidden;
  background:
    radial-gradient(120% 130% at 100% 0%, rgba(255, 176, 32, .16), transparent 62%),
    linear-gradient(160deg, var(--ink-2), var(--ink-3));
}

.page-contact .co-contact__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(18px, 2.4vw, 26px);
}

.page-contact .co-field {
  padding-top: 14px;
  border-top: 2px solid rgba(255, 176, 32, .34);
}

.page-contact .co-field__key {
  margin: 0 0 10px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .2em;
  color: var(--grey);
}

.page-contact .co-field__val {
  margin: 0 0 9px;
  font-size: clamp(15.5px, 1.9vw, 19px);
  font-weight: 600;
  line-height: 1.5;
  color: var(--paper);
  word-break: break-word;
}

.page-contact .co-field__val.num {
  font-family: var(--font-mono);
  font-weight: 600;
  letter-spacing: .01em;
  color: var(--amber);
}

.page-contact .co-field__note {
  margin: 0;
  font-size: 13.5px;
  line-height: 1.62;
  color: var(--co-softer);
}

.page-contact .co-contact__note {
  margin: clamp(24px, 3.2vw, 34px) 0 0;
  padding-top: clamp(18px, 2.4vw, 26px);
  border-top: 1px solid var(--line);
  max-width: 76ch;
  font-size: 14.5px;
  line-height: 1.78;
  color: var(--co-soft);
}

.page-contact .co-contact__note a {
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px solid rgba(47, 224, 200, .4);
}

@media (min-width: 720px) {
  .page-contact .co-contact__grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (min-width: 1000px) {
  .page-contact .co-contact__grid {
    grid-template-columns: repeat(6, minmax(0, 1fr));
  }

  .page-contact .co-field:nth-child(1) { grid-column: span 3; }
  .page-contact .co-field:nth-child(2) { grid-column: span 3; }
  .page-contact .co-field:nth-child(3) { grid-column: span 4; }
  .page-contact .co-field:nth-child(4) { grid-column: span 2; }
}

/* ---------- 桌面分栏 ---------- */

@media (min-width: 980px) {
  .page-contact .co-hero__grid {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
    align-items: end;
  }

  .page-contact .co-hero__aside {
    padding-bottom: 6px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-contact .co-dir,
  .page-contact .co-step__dot,
  .page-contact .co-dir__extra {
    transition: none !important;
  }

  .page-contact .co-dir:hover,
  .page-contact .co-dir:focus-within {
    transform: none;
  }
}
</main>