/* ===== 合作洽谈 · 页面专属样式 ===== */
.page-contact {
  --ct-line: rgba(183, 175, 192, .18);
  --ct-gold-line: rgba(217, 169, 74, .42);
  background:
    radial-gradient(120% 62% at 84% -6%, rgba(140, 75, 255, .18), transparent 62%),
    radial-gradient(70% 46% at 2% 18%, rgba(53, 199, 232, .08), transparent 64%),
    var(--ink);
  color: var(--body-on-ink);
}

/* ---------- 面包屑 ---------- */
.page-contact .ct-crumb {
  padding-top: clamp(1.1rem, 3.5vw, 2.2rem);
}

.page-contact .ct-crumb .breadcrumb {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: .55rem;
  margin: 0;
  padding: 0;
  list-style: none;
  font-size: .76rem;
  letter-spacing: .12em;
  color: var(--muted);
}

.page-contact .ct-crumb .breadcrumb li {
  list-style: none;
}

.page-contact .ct-crumb a {
  color: var(--muted);
  text-decoration: none;
  transition: color .2s var(--ease);
}

.page-contact .ct-crumb a:hover {
  color: var(--gold);
}

.page-contact .breadcrumb__sep {
  color: var(--violet);
}

.page-contact .ct-crumb [aria-current="page"] {
  color: var(--gold);
}

/* ---------- 首屏框景 ---------- */
.page-contact .ct-hero {
  padding-top: clamp(1rem, 3vw, 1.8rem);
  padding-bottom: clamp(2rem, 6vw, 3.4rem);
}

.page-contact .ct-hero__frame {
  position: relative;
  overflow: hidden;
  border: 1px solid var(--ct-gold-line);
  padding: clamp(1.5rem, 6vw, 3.6rem) clamp(1.1rem, 5vw, 3.2rem);
  background:
    repeating-linear-gradient(90deg, rgba(217, 169, 74, .28) 0 1px, transparent 1px 16px) top left / 100% 7px no-repeat,
    repeating-linear-gradient(90deg, rgba(217, 169, 74, .18) 0 1px, transparent 1px 16px) bottom left / 100% 7px no-repeat,
    radial-gradient(rgba(243, 231, 211, .045) 1px, transparent 1px) 0 0 / 5px 5px,
    linear-gradient(158deg, rgba(23, 20, 31, .97), rgba(10, 9, 16, .99));
}

.page-contact .ct-hero__frame::before {
  content: "";
  position: absolute;
  right: -12%;
  bottom: -46%;
  width: min(56%, 520px);
  aspect-ratio: 1;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(140, 75, 255, .38), transparent 66%);
  filter: blur(46px);
  pointer-events: none;
}

.page-contact .ct-hero__frame::after {
  content: "";
  position: absolute;
  left: -8%;
  top: -30%;
  width: min(38%, 320px);
  aspect-ratio: 1;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(53, 199, 232, .22), transparent 68%);
  filter: blur(52px);
  pointer-events: none;
}

.page-contact .ct-hero__body {
  position: relative;
  z-index: 1;
  max-width: 44rem;
}

.page-contact .ct-hero__title {
  margin: .7rem 0 1rem;
  font-family: var(--font-sans);
  font-weight: 900;
  font-size: clamp(2rem, 6.2vw, 3.9rem);
  line-height: 1.1;
  letter-spacing: -.02em;
  color: var(--paper);
  text-shadow: 0 0 24px rgba(217, 169, 74, .28);
}

.page-contact .ct-hero__lede {
  max-width: 36rem;
  color: var(--body-on-ink);
}

.page-contact .ct-hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: .7rem;
  margin-top: clamp(1.2rem, 3.5vw, 1.9rem);
}

.page-contact .ct-hero__note {
  display: none;
}

@media (min-width: 940px) {
  .page-contact .ct-hero__frame {
    padding-right: 6.5rem;
  }

  .page-contact .ct-hero__note {
    display: block;
    position: absolute;
    top: clamp(1.8rem, 4vw, 2.8rem);
    right: clamp(1rem, 2.6vw, 2rem);
    z-index: 2;
    margin: 0;
    font-size: .7rem;
    letter-spacing: .4em;
    color: var(--muted);
  }
}

.page-contact .ct-hero__stats {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1px;
  margin: clamp(1.1rem, 3vw, 1.7rem) 0 0;
  padding: 0;
  list-style: none;
  background: var(--ct-gold-line);
  border: 1px solid var(--ct-gold-line);
}

@media (min-width: 720px) {
  .page-contact .ct-hero__stats {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

.page-contact .ct-hero__stats li {
  display: flex;
  flex-direction: column;
  gap: .32rem;
  padding: 1rem 1.15rem;
  background: var(--ink-2);
}

.page-contact .ct-hero__stats .num {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  font-size: clamp(1.5rem, 3.2vw, 2.05rem);
  line-height: 1;
  color: var(--gold);
}

.page-contact .ct-hero__stats em {
  font-style: normal;
  font-size: .82rem;
  line-height: 1.65;
  color: var(--muted);
}

/* ---------- 通用区块头 ---------- */
.page-contact .ct-sec-head {
  max-width: 44rem;
  margin-bottom: clamp(1.5rem, 4vw, 2.4rem);
}

.page-contact .ct-sec-head .section__title {
  margin: .5rem 0 .85rem;
}

/* ---------- 三类合作方向 ---------- */
.page-contact .ct-dirs__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(1rem, 3vw, 1.5rem);
}

@media (min-width: 900px) {
  .page-contact .ct-dirs__grid {
    grid-template-columns: repeat(12, minmax(0, 1fr));
    align-items: start;
  }

  .page-contact .ct-dir--a { grid-column: 1 / span 5; }
  .page-contact .ct-dir--b { grid-column: 7 / span 3; margin-top: 2.8rem; }
  .page-contact .ct-dir--c { grid-column: 10 / span 3; margin-top: 5.6rem; }
}

.page-contact .ct-dir {
  position: relative;
  padding: clamp(1.15rem, 3vw, 1.7rem);
  border: 1px solid var(--ct-line);
  background:
    linear-gradient(180deg, rgba(31, 27, 42, .92), rgba(23, 20, 31, .96));
  transition: border-color .24s var(--ease), transform .24s var(--ease), box-shadow .24s var(--ease);
}

.page-contact .ct-dir::after {
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  width: 2px;
  height: 42%;
  background: linear-gradient(180deg, var(--gold), transparent);
  opacity: .7;
}

.page-contact .ct-dir:hover {
  border-color: var(--orange);
  transform: translateY(-3px);
  box-shadow: 0 22px 40px -28px rgba(255, 122, 61, .85);
}

.page-contact .ct-dir__idx {
  display: inline-block;
  margin-bottom: .6rem;
  font-family: var(--font-serif);
  font-size: .8rem;
  letter-spacing: .3em;
  color: var(--gold);
}

.page-contact .ct-dir__title {
  margin: 0 0 .6rem;
  font-size: clamp(1.15rem, 2.4vw, 1.4rem);
  color: var(--paper);
}

.page-contact .ct-dir__who {
  margin: 0 0 .9rem;
  padding-bottom: .85rem;
  border-bottom: 1px dashed var(--ct-line);
  font-size: .8rem;
  line-height: 1.75;
  color: var(--cyan);
}

.page-contact .ct-dir__text {
  margin: 0 0 .9rem;
  font-size: .9rem;
  line-height: 1.85;
  color: var(--body-on-ink);
}

.page-contact .ct-dir__gain {
  margin: 0 0 1rem;
  padding: 0;
  list-style: none;
  display: grid;
  gap: .5rem;
}

.page-contact .ct-dir__gain li {
  position: relative;
  padding-left: 1.1rem;
  font-size: .84rem;
  line-height: 1.75;
  color: var(--muted);
}

.page-contact .ct-dir__gain li::before {
  content: "";
  position: absolute;
  left: 0;
  top: .62em;
  width: .45rem;
  height: .45rem;
  background: linear-gradient(135deg, var(--gold), var(--orange));
  transform: rotate(45deg);
}

.page-contact .ct-dir__meta {
  margin: 0;
  font-size: .72rem;
  letter-spacing: .04em;
  color: var(--gold);
}

/* ---------- 联系 × 流程 不对称双栏 ---------- */
.page-contact .ct-bridge {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(1.6rem, 4.5vw, 2.8rem);
}

@media (min-width: 960px) {
  .page-contact .ct-bridge {
    grid-template-columns: minmax(0, .88fr) minmax(0, 1.12fr);
    align-items: start;
  }
}

.page-contact .ct-contact {
  padding: clamp(1.15rem, 3.4vw, 1.8rem);
  border: 1px solid rgba(46, 42, 54, .18);
  background: var(--paper);
  color: var(--ink-text);
  box-shadow: var(--shadow-paper);
}

.page-contact .ct-contact__img {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 3 / 2;
  object-fit: cover;
  margin-bottom: 1.2rem;
  border: 1px solid rgba(46, 42, 54, .16);
}

.page-contact .ct-contact__label {
  display: inline-block;
  margin: 0 0 .55rem;
  padding: .2rem .55rem;
  font-family: var(--font-serif);
  font-size: .74rem;
  letter-spacing: .18em;
  color: var(--paper);
  background: var(--red);
}

.page-contact .ct-contact__title {
  margin: 0 0 .7rem;
  font-size: clamp(1.2rem, 2.6vw, 1.55rem);
  line-height: 1.3;
  color: var(--ink-text);
}

.page-contact .ct-contact__lead {
  margin: 0;
  font-size: .9rem;
  line-height: 1.85;
  color: #4a4453;
}

.page-contact .ct-contact__list {
  margin: 1.3rem 0 0;
  padding: 0;
  list-style: none;
  border-top: 1px dashed rgba(46, 42, 54, .3);
}

.page-contact .ct-contact__item {
  display: grid;
  grid-template-columns: 3.6rem minmax(0, 1fr) auto;
  align-items: center;
  gap: .6rem;
  padding: .8rem 0;
  border-bottom: 1px dashed rgba(46, 42, 54, .3);
}

.page-contact .ct-contact__item--addr {
  grid-template-columns: 3.6rem minmax(0, 1fr);
}

.page-contact .ct-contact__key {
  font-family: var(--font-serif);
  font-size: .74rem;
  letter-spacing: .16em;
  color: var(--red);
}

.page-contact .ct-contact__val {
  font-size: .84rem;
  line-height: 1.6;
  color: var(--ink-text);
  word-break: break-all;
}

.page-contact .ct-contact__val--addr {
  font-family: var(--font-sans);
  font-size: .86rem;
  word-break: normal;
}

.page-contact .ct-copy {
  padding: .34rem .62rem;
  font-family: var(--font-sans);
  font-size: .72rem;
  letter-spacing: .06em;
  color: var(--ink-text);
  background: transparent;
  border: 1px solid rgba(46, 42, 54, .38);
  border-radius: var(--radius);
  cursor: pointer;
  white-space: nowrap;
  transition: border-color .2s var(--ease), color .2s var(--ease), background .2s var(--ease);
}

.page-contact .ct-copy:hover {
  border-color: var(--gold);
  color: #7d5f1c;
  background: rgba(217, 169, 74, .14);
}

.page-contact .ct-copy[data-copied] {
  border-color: var(--orange);
  color: var(--orange);
  background: rgba(255, 122, 61, .1);
}

.page-contact .ct-contact__note {
  margin: 1.1rem 0 0;
  font-size: .78rem;
  line-height: 1.8;
  color: #5c5566;
}

/* ---------- 流程步骤 ---------- */
.page-contact .ct-bridge__right {
  position: relative;
}

.page-contact .ct-flow__deco {
  position: absolute;
  inset: 0;
  z-index: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: .09;
  filter: blur(1px) saturate(.7);
  pointer-events: none;
}

.page-contact .ct-bridge__right > *:not(.ct-flow__deco) {
  position: relative;
  z-index: 1;
}

.page-contact .ct-steps {
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: .7rem;
}

.page-contact .ct-step {
  list-style: none;
}

.page-contact .ct-step__fold {
  border: 1px solid var(--ct-line);
  background: rgba(23, 20, 31, .78);
  transition: border-color .24s var(--ease), background .24s var(--ease);
}

.page-contact .ct-step__fold:hover {
  border-color: rgba(217, 169, 74, .5);
}

.page-contact .ct-step__fold[open] {
  border-color: var(--ct-gold-line);
  background: rgba(31, 27, 42, .9);
}

.page-contact .ct-step__sum {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr) auto;
  align-items: center;
  gap: .85rem;
  padding: .95rem 1.05rem;
  cursor: pointer;
  list-style: none;
}

.page-contact .ct-step__sum::-webkit-details-marker {
  display: none;
}

.page-contact .ct-step__no {
  padding: .26rem .5rem;
  font-size: .92rem;
  color: var(--gold);
  border: 1px solid var(--ct-gold-line);
  border-radius: var(--radius);
}

.page-contact .ct-step__name {
  font-size: 1rem;
  font-weight: 700;
  color: var(--paper);
}

.page-contact .ct-step__when {
  font-size: .72rem;
  letter-spacing: .04em;
  color: var(--cyan);
  white-space: nowrap;
}

.page-contact .ct-step__body {
  margin-left: 1.05rem;
  padding: 0 1.05rem 1.05rem 1.05rem;
  border-left: 2px solid rgba(140, 75, 255, .4);
  font-size: .88rem;
  line-height: 1.9;
  color: var(--muted);
}

.page-contact .ct-step__body p {
  margin: 0;
}

/* ---------- 材料清单 ---------- */
.page-contact .ct-mats__base {
  position: relative;
  margin-bottom: clamp(1.1rem, 3vw, 1.6rem);
  padding: clamp(1.1rem, 3vw, 1.6rem);
  border: 1px solid rgba(46, 42, 54, .2);
  background:
    repeating-linear-gradient(135deg, rgba(232, 217, 188, .55) 0 6px, transparent 6px 12px),
    var(--paper-2);
  color: var(--ink-text);
}

.page-contact .ct-mats__base-tag {
  display: inline-block;
  margin-bottom: .85rem;
  font-family: var(--font-serif);
  font-size: .76rem;
  letter-spacing: .24em;
  color: var(--paper);
  background: var(--red);
  padding: .2rem .6rem;
}

.page-contact .ct-mats__base-list {
  display: grid;
  grid-template-columns: 1fr;
  gap: .55rem;
  margin: 0;
  padding: 0;
  list-style: none;
}

@media (min-width: 700px) {
  .page-contact .ct-mats__base-list {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: .55rem 1.6rem;
  }
}

.page-contact .ct-mats__base-list li {
  position: relative;
  padding-left: 1.1rem;
  font-size: .88rem;
  line-height: 1.8;
}

.page-contact .ct-mats__base-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: .68em;
  width: .42rem;
  height: .42rem;
  background: var(--red);
}

.page-contact .ct-mats__filter {
  display: flex;
  flex-wrap: wrap;
  gap: .5rem;
  margin-bottom: clamp(.9rem, 2.6vw, 1.3rem);
}

.page-contact .ct-mats__list {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1px;
  margin: 0;
  padding: 0;
  list-style: none;
  background: var(--ct-line);
  border: 1px solid var(--ct-line);
}

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

.page-contact .ct-mat {
  padding: 1.1rem 1.2rem;
  background: var(--ink-2);
  transition: background .24s var(--ease);
}

.page-contact .ct-mat:hover {
  background: var(--ink-3);
}

.page-contact .ct-mat[hidden] {
  display: none;
}

.page-contact .ct-mat__tag {
  display: inline-block;
  margin-bottom: .5rem;
  font-family: var(--font-serif);
  font-size: .7rem;
  letter-spacing: .16em;
  color: var(--cyan);
}

.page-contact .ct-mat__title {
  margin: 0 0 .45rem;
  font-size: 1rem;
  font-weight: 700;
  line-height: 1.5;
  color: var(--paper);
}

.page-contact .ct-mat__text {
  margin: 0;
  font-size: .86rem;
  line-height: 1.85;
  color: var(--muted);
}

/* ---------- 分流入口 ---------- */
.page-contact .ct-ask__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1px;
  background: var(--ct-line);
  border: 1px solid var(--ct-line);
}

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

.page-contact .ct-ask__item {
  display: flex;
  flex-direction: column;
  gap: .5rem;
  padding: clamp(1.1rem, 3vw, 1.5rem);
  background: var(--ink-2);
  text-decoration: none;
  color: inherit;
  transition: background .24s var(--ease), box-shadow .24s var(--ease);
}

.page-contact .ct-ask__item:hover {
  background: var(--ink-3);
  box-shadow: inset 0 0 0 1px var(--orange);
}

.page-contact .ct-ask__tag {
  font-family: var(--font-serif);
  font-size: .72rem;
  letter-spacing: .2em;
  color: var(--gold);
}

.page-contact .ct-ask__t {
  font-size: .92rem;
  line-height: 1.8;
  color: var(--body-on-ink);
}

.page-contact .ct-ask__item .link-more {
  margin-top: auto;
  padding-top: .5rem;
  font-size: .82rem;
  color: var(--cyan);
}

/* ---------- 收束光带 ---------- */
.page-contact .ct-outro__band {
  position: relative;
  overflow: hidden;
  display: grid;
  gap: 1.1rem;
  padding: clamp(1.4rem, 4vw, 2.2rem) clamp(1.1rem, 4vw, 2rem);
  border: 1px solid var(--ct-gold-line);
  background:
    linear-gradient(100deg, rgba(255, 122, 61, .16), rgba(140, 75, 255, .12) 48%, rgba(53, 199, 232, .14)),
    var(--ink-2);
}

@media (min-width: 860px) {
  .page-contact .ct-outro__band {
    grid-template-columns: minmax(0, 1fr) auto;
    align-items: center;
  }
}

.page-contact .ct-outro__line {
  margin: 0 0 .45rem;
  font-size: clamp(1.2rem, 3vw, 1.7rem);
  font-weight: 800;
  letter-spacing: -.01em;
  color: var(--paper);
}

.page-contact .ct-outro__sub {
  margin: 0;
  font-size: .86rem;
  line-height: 1.8;
  color: var(--muted);
}

.page-contact .ct-outro__acts {
  display: flex;
  flex-wrap: wrap;
  gap: .6rem;
}

.page-contact .ct-outro__stamp {
  position: absolute;
  right: clamp(1rem, 3vw, 2rem);
  top: clamp(.8rem, 2vw, 1.2rem);
  opacity: .35;
  pointer-events: none;
}

@media (max-width: 859px) {
  .page-contact .ct-outro__stamp {
    display: none;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-contact .ct-dir,
  .page-contact .ct-copy,
  .page-contact .ct-ask__item,
  .page-contact .ct-mat,
  .page-contact .ct-step__fold {
    transition: none;
  }

  .page-contact .ct-dir:hover {
    transform: none;
  }
}