.page-contact{
  --pc-gap: clamp(1rem, 2.4vw, 1.75rem);
  background:
    radial-gradient(1100px 520px at 84% -8%, rgba(34,224,200,.10), transparent 62%),
    linear-gradient(180deg, var(--ink) 0%, var(--ink-2) 62%, var(--ink) 100%);
  color: var(--white);
  padding-block: clamp(1.25rem, 3.4vw, 2.5rem) clamp(3rem, 6vw, 5rem);
}

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

/* ---------- 首屏 ---------- */
.page-contact .contact-hero{
  position: relative;
  overflow: hidden;
  padding-bottom: clamp(1.75rem, 3.6vw, 2.75rem);
  border-bottom: 1px solid var(--line);
  margin-bottom: clamp(1.75rem, 3.8vw, 3rem);
}

.page-contact .contact-hero::before{
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(to right, rgba(30,58,51,.45) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(30,58,51,.45) 1px, transparent 1px);
  background-size: 48px 48px;
  -webkit-mask-image: linear-gradient(180deg, rgba(0,0,0,.6), transparent 76%);
  mask-image: linear-gradient(180deg, rgba(0,0,0,.6), transparent 76%);
  pointer-events: none;
}

.page-contact .breadcrumb{
  position: relative;
  margin-bottom: clamp(1.1rem, 2.6vw, 1.9rem);
}

.page-contact .contact-hero__grid{
  position: relative;
  display: grid;
  gap: clamp(1.5rem, 3vw, 2.5rem);
  align-items: center;
}

.page-contact .contact-hero__copy h1{
  margin: .55rem 0 0;
  font-size: var(--fs-display);
  font-weight: 800;
  line-height: 1.08;
  letter-spacing: -.02em;
  max-width: 15em;
}

.page-contact .contact-hero__lead{
  margin: clamp(.9rem, 2vw, 1.25rem) 0 0;
  max-width: 34em;
  color: var(--mist);
  font-size: var(--fs-body);
  line-height: 1.75;
}

.page-contact .hero-facts{
  list-style: none;
  margin: clamp(1.2rem, 2.6vw, 1.9rem) 0 0;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: .7rem 1.7rem;
}

.page-contact .hero-facts li{
  display: flex;
  flex-direction: column;
  gap: .18rem;
  padding-left: .9rem;
  border-left: 2px solid var(--line);
}

.page-contact .hero-facts__k{
  font-family: var(--font-mono);
  font-size: 1.05rem;
  color: var(--gold);
  letter-spacing: .01em;
}

.page-contact .hero-facts__v{
  font-size: var(--fs-note);
  color: var(--mist-dim);
}

.page-contact .contact-hero__art{
  margin: 0;
  border: 1px solid var(--line);
  border-radius: var(--r-lg);
  background: var(--card);
  padding: .5rem;
  box-shadow: var(--shadow-card);
}

.page-contact .contact-hero__art img{
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 1000 / 640;
  object-fit: cover;
  border-radius: calc(var(--r-lg) - 6px);
}

.page-contact .contact-hero__art figcaption{
  margin-top: .55rem;
  padding: 0 .45rem .3rem;
  font-family: var(--font-mono);
  font-size: var(--fs-note);
  color: var(--mist-dim);
}

/* ---------- 主体双栏 ---------- */
.page-contact .contact-body{
  display: grid;
  gap: clamp(1.5rem, 3vw, 2.5rem);
  align-items: start;
}

.page-contact .channels__intro{
  margin: .55rem 0 clamp(1rem, 2.2vw, 1.4rem);
  color: var(--mist);
  font-size: var(--fs-sm);
  line-height: 1.75;
  max-width: 32em;
}

.page-contact .channel{
  position: relative;
  display: block;
  background: var(--card);
  border: 1px solid var(--line);
  border-left: 4px solid var(--cyan);
  border-radius: var(--r-md);
  padding: 1.1rem 1.15rem 1.2rem;
  box-shadow: var(--shadow-card);
  transition: border-color var(--dur) var(--ease),
              transform var(--dur) var(--ease),
              box-shadow var(--dur) var(--ease);
}

.page-contact .channel + .channel{
  margin-top: clamp(.85rem, 2vw, 1.15rem);
}

.page-contact .channel:hover,
.page-contact .channel:focus-within{
  border-left-color: var(--orange);
  transform: translateY(-2px);
  box-shadow: var(--shadow-pop);
}

.page-contact .channel--urgent{
  background:
    linear-gradient(180deg, rgba(255,122,47,.10), transparent 58%),
    var(--card);
}

.page-contact .channel__kicker{
  margin: 0 0 .4rem;
  font-family: var(--font-mono);
  font-size: var(--fs-note);
  color: var(--mist-dim);
  letter-spacing: .04em;
}

.page-contact .channel__title{
  margin: 0 0 .45rem;
  font-size: var(--fs-h3);
  font-weight: 800;
  letter-spacing: -.01em;
}

.page-contact .channel__body{
  margin: 0;
  color: var(--mist);
  font-size: var(--fs-sm);
  line-height: 1.75;
}

.page-contact .channel__value{
  margin: .8rem 0 0;
  display: inline-block;
  font-size: 1.02rem;
  letter-spacing: .01em;
}

.page-contact .channel__hint{
  margin: .45rem 0 0;
  font-size: var(--fs-note);
  color: var(--mist-dim);
  line-height: 1.65;
}

.page-contact .channel__row{
  display: flex;
  align-items: center;
  gap: 1rem;
}

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

.page-contact .channel__actions{
  margin: .95rem 0 .2rem;
}

.page-contact [data-copy]{
  cursor: pointer;
  border-bottom: 1px dashed var(--line);
  padding-bottom: 1px;
  transition: color var(--dur) var(--ease), border-color var(--dur) var(--ease);
}

.page-contact [data-copy]:hover{
  color: var(--cyan);
  border-bottom-color: var(--cyan);
}

.page-contact [data-copy].is-copied{
  color: var(--orange);
  border-bottom-color: var(--orange);
}

.page-contact details > summary{
  cursor: pointer;
  list-style: none;
  display: inline-flex;
  align-items: center;
  gap: .45rem;
  margin-top: .8rem;
  font-size: var(--fs-sm);
  color: var(--cyan);
  transition: color var(--dur) var(--ease);
}

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

.page-contact details > summary::before{
  content: "＋";
  font-family: var(--font-mono);
  font-size: .9em;
}

.page-contact details[open] > summary::before{
  content: "－";
}

.page-contact details > summary:hover{
  color: var(--white);
}

.page-contact .ring{
  flex: 0 0 auto;
  width: 70px;
  height: 70px;
}

.page-contact .ring__bg{
  fill: none;
  stroke: var(--line);
  stroke-width: 5;
}

.page-contact .ring__fg{
  fill: none;
  stroke: var(--orange);
  stroke-width: 5;
  stroke-linecap: round;
  stroke-dasharray: 201;
  stroke-dashoffset: 62;
  transform: rotate(-90deg);
  transform-origin: 50% 50%;
}

.page-contact .ring__label{
  fill: var(--gold);
  font-family: var(--font-mono);
  font-size: 19px;
}

.page-contact .checklist{
  list-style: none;
  margin: .75rem 0 0;
  padding: 0;
  display: grid;
  gap: .5rem;
}

.page-contact .checklist li{
  position: relative;
  padding-left: 1.1rem;
  font-size: var(--fs-note);
  color: var(--mist);
  line-height: 1.65;
}

.page-contact .checklist li::before{
  content: "";
  position: absolute;
  left: 0;
  top: .55em;
  width: 6px;
  height: 6px;
  border-radius: 2px;
  background: var(--cyan);
}

/* ---------- 右栏面板 ---------- */
.page-contact .panel{
  background: var(--ink-2);
  border: 1px solid var(--line);
  border-radius: var(--r-lg);
  padding: clamp(1.05rem, 2.4vw, 1.55rem);
}

.page-contact .panel + .panel{
  margin-top: clamp(.9rem, 2vw, 1.4rem);
}

.page-contact .panel--locale{
  background:
    radial-gradient(420px 220px at 88% 6%, rgba(233,196,106,.10), transparent 70%),
    var(--ink-2);
}

.page-contact .panel__title{
  margin: 0 0 .7rem;
  font-size: var(--fs-h3);
  font-weight: 800;
  letter-spacing: -.01em;
  line-height: 1.35;
}

.page-contact .panel__body{
  margin: .8rem 0 0;
  color: var(--mist);
  font-size: var(--fs-sm);
  line-height: 1.75;
}

.page-contact .panel__meta{
  margin: .85rem 0 0;
  font-size: var(--fs-note);
  color: var(--mist-dim);
  word-break: break-word;
}

.page-contact .panel__link{
  margin: 1rem 0 0;
}

.page-contact .link-arrow{
  display: inline-flex;
  align-items: center;
  gap: .4rem;
  font-size: var(--fs-sm);
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px solid rgba(34,224,200,.4);
  padding-bottom: 2px;
  transition: color var(--dur) var(--ease), border-color var(--dur) var(--ease);
}

.page-contact .link-arrow::after{
  content: "→";
  font-family: var(--font-mono);
  transition: transform var(--dur) var(--ease);
}

.page-contact .link-arrow:hover{
  color: var(--white);
  border-bottom-color: var(--white);
}

.page-contact .link-arrow:hover::after{
  transform: translateX(3px);
}

/* 时间刻度条 */
.page-contact .clock{
  margin-top: .3rem;
}

.page-contact .clock__track{
  height: 12px;
  border-radius: var(--r-pill);
  border: 1px solid var(--line);
  background-image:
    repeating-linear-gradient(90deg, transparent 0 calc(100% / 9 - 1px), rgba(6,17,15,.85) calc(100% / 9 - 1px) calc(100% / 9)),
    linear-gradient(90deg, var(--cyan), rgba(34,224,200,.3));
}

.page-contact .clock__labels{
  display: flex;
  justify-content: space-between;
  margin-top: .45rem;
  font-family: var(--font-mono);
  font-size: var(--fs-note);
  color: var(--gold);
}

/* 自查列表 */
.page-contact .prep-list{
  list-style: none;
  margin: .9rem 0 0;
  padding: 0;
  display: grid;
  gap: .95rem;
}

.page-contact .prep-list li{
  display: grid;
  grid-template-columns: auto 1fr;
  gap: .7rem;
  align-items: start;
  padding-top: .95rem;
  border-top: 1px solid var(--line);
}

.page-contact .prep-list li:first-child{
  padding-top: 0;
  border-top: 0;
}

.page-contact .prep-list__n{
  font-size: var(--fs-note);
  color: var(--gold);
  padding-top: .15rem;
}

.page-contact .prep-list__t{
  margin: 0 0 .3rem;
  font-size: var(--fs-body);
  font-weight: 700;
  color: var(--white);
}

.page-contact .prep-list p{
  margin: 0;
  font-size: var(--fs-sm);
  color: var(--mist);
  line-height: 1.7;
}

/* 地域 */
.page-contact .locale-map{
  margin: .2rem 0 .9rem;
}

.page-contact .locale-map img{
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 4 / 3;
  object-fit: cover;
  border-radius: var(--r-md);
  border: 1px solid var(--line);
  background: var(--card);
}

.page-contact .locale-meta{
  margin: 0;
  display: grid;
  gap: .55rem;
}

.page-contact .locale-meta > div{
  display: grid;
  grid-template-columns: 5.2em 1fr;
  gap: .7rem;
  align-items: baseline;
  padding-bottom: .55rem;
  border-bottom: 1px dashed var(--line);
}

.page-contact .locale-meta > div:last-child{
  border-bottom: 0;
  padding-bottom: 0;
}

.page-contact .locale-meta dt{
  font-size: var(--fs-note);
  color: var(--mist-dim);
}

.page-contact .locale-meta dd{
  margin: 0;
  font-size: var(--fs-sm);
  color: var(--white);
  line-height: 1.6;
}

/* ---------- 合作 ---------- */
.page-contact .coop{
  margin-top: clamp(2.25rem, 5vw, 3.75rem);
  padding-top: clamp(1.75rem, 3.6vw, 2.6rem);
  border-top: 1px solid var(--line);
}

.page-contact .coop__intro{
  margin: .75rem 0 clamp(1.1rem, 2.4vw, 1.6rem);
  max-width: 40em;
  color: var(--mist);
  font-size: var(--fs-sm);
  line-height: 1.75;
}

.page-contact .coop__grid{
  display: grid;
  gap: clamp(.9rem, 2vw, 1.3rem);
}

.page-contact .coop__card{
  position: relative;
  padding: clamp(1.05rem, 2.4vw, 1.5rem);
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--r-md);
  transition: border-color var(--dur) var(--ease), transform var(--dur) var(--ease);
}

.page-contact .coop__card:hover{
  border-color: rgba(34,224,200,.55);
  transform: translateY(-2px);
}

.page-contact .coop__card h3{
  margin: .7rem 0 .5rem;
  font-size: var(--fs-h3);
  font-weight: 800;
}

.page-contact .coop__card p{
  margin: 0;
  color: var(--mist);
  font-size: var(--fs-sm);
  line-height: 1.75;
}

.page-contact .coop__card .tag{
  margin: 0;
}

.page-contact .steps{
  list-style: none;
  margin: clamp(1.1rem, 2.4vw, 1.6rem) 0 0;
  padding: 0;
  display: grid;
  gap: .9rem;
}

.page-contact .steps li{
  display: grid;
  grid-template-columns: auto 1fr;
  gap: .8rem;
  align-items: start;
  padding: .9rem 1rem;
  border: 1px dashed var(--line);
  border-radius: var(--r-md);
  background: rgba(18,38,31,.5);
}

.page-contact .steps__n{
  color: var(--gold);
  font-size: var(--fs-note);
  padding-top: .2rem;
}

.page-contact .steps p{
  margin: 0;
  font-size: var(--fs-sm);
  color: var(--mist);
  line-height: 1.7;
}

.page-contact .coop__note{
  margin: clamp(1.1rem, 2.4vw, 1.6rem) 0 0;
  font-size: var(--fs-note);
  color: var(--mist-dim);
  line-height: 1.8;
}

.page-contact .coop__note a{
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px solid rgba(34,224,200,.4);
  transition: color var(--dur) var(--ease), border-color var(--dur) var(--ease);
}

.page-contact .coop__note a:hover{
  color: var(--white);
  border-bottom-color: var(--white);
}

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

  .page-contact .steps{
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .page-contact .steps li{
    grid-template-columns: 1fr;
  }
}

@media (min-width: 900px){
  .page-contact .contact-hero__grid{
    grid-template-columns: minmax(0, 1.06fr) minmax(0, .94fr);
  }
}

@media (min-width: 1000px){
  .page-contact .contact-body{
    grid-template-columns: minmax(0, 372px) minmax(0, 1fr);
    gap: clamp(2rem, 4vw, 3.2rem);
  }

  .page-contact .contact-aside{
    padding-right: 6%;
  }
}

@media (min-width: 1200px){
  .page-contact .contact-hero__copy h1{
    max-width: 13em;
  }
}

@media (prefers-reduced-motion: reduce){
  .page-contact .channel,
  .page-contact .coop__card,
  .page-contact .link-arrow::after,
  .page-contact [data-copy]{
    transition: none;
  }

  .page-contact .channel:hover,
  .page-contact .channel:focus-within,
  .page-contact .coop__card:hover{
    transform: none;
  }
}
<<<END>>>