.page-contact{
  --ct-pad: clamp(20px, 3vw, 32px);
  --ct-accent-line: rgba(11, 27, 43, .14);
  background: var(--cloud);
  color: var(--ink);
  font-family: var(--font-body);
}

.page-contact .mono{
  font-family: var(--font-mono);
  letter-spacing: .04em;
}

/* ---------- 首屏 ---------- */
.page-contact .ct-masthead{
  position: relative;
  overflow: hidden;
  padding: var(--sp-3) 0 clamp(36px, 6vw, 72px);
  color: var(--cloud);
  background:
    radial-gradient(120% 90% at 82% 8%, rgba(25, 227, 209, .22) 0%, rgba(25, 227, 209, 0) 58%),
    radial-gradient(90% 80% at 6% 96%, rgba(255, 107, 44, .18) 0%, rgba(255, 107, 44, 0) 62%),
    linear-gradient(158deg, var(--ink) 0%, var(--ink-raise) 52%, var(--ink-deep) 100%);
  border-bottom: 1px solid var(--line-strong);
}

.page-contact .ct-masthead::before{
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    repeating-linear-gradient(90deg, rgba(127, 168, 184, .16) 0 1px, transparent 1px 72px),
    repeating-linear-gradient(0deg, rgba(127, 168, 184, .16) 0 1px, transparent 1px 72px);
  -webkit-mask-image: linear-gradient(180deg, rgba(0, 0, 0, .95), rgba(0, 0, 0, .1) 92%);
  mask-image: linear-gradient(180deg, rgba(0, 0, 0, .95), rgba(0, 0, 0, .1) 92%);
  pointer-events: none;
}

.page-contact .ct-masthead > .shell{
  position: relative;
  z-index: 1;
}

.page-contact .ct-masthead .breadcrumb{
  margin-bottom: clamp(24px, 4vw, 44px);
}

.page-contact .ct-masthead .breadcrumb ol{
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 6px;
  margin: 0;
  padding: 0;
  list-style: none;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .08em;
}

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

.page-contact .ct-masthead .breadcrumb a{
  color: var(--mist);
  text-decoration: none;
  transition: color var(--t) var(--ease);
}

.page-contact .ct-masthead .breadcrumb a:hover,
.page-contact .ct-masthead .breadcrumb a:focus-visible{
  color: var(--cyan);
}

.page-contact .ct-masthead .breadcrumb [aria-current]{
  color: var(--gold);
}

.page-contact .ct-head .eyebrow{
  margin: 0 0 var(--sp-2);
  font-size: 12px;
  letter-spacing: .18em;
  text-transform: uppercase;
  color: var(--cyan);
}

.page-contact .ct-head h1{
  max-width: 22ch;
  margin: 0;
  font-family: var(--font-display);
  font-size: clamp(30px, 6.6vw, 62px);
  font-weight: 900;
  line-height: 1.1;
  letter-spacing: -.03em;
  color: var(--cloud);
}

.page-contact .ct-lede{
  max-width: 60ch;
  margin: var(--sp-3) 0 0;
  font-size: clamp(15px, 1.7vw, 17px);
  line-height: 1.8;
  color: rgba(244, 247, 250, .8);
}

/* ---------- 非对称信息台 ---------- */
.page-contact .ct-desk{
  padding: clamp(28px, 5vw, 64px) 0 clamp(48px, 8vw, 96px);
}

.page-contact .ct-grid{
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(24px, 4vw, 40px);
  align-items: start;
}

/* ---------- 左侧联系卡 ---------- */
.page-contact .ct-panel{
  position: relative;
  overflow: hidden;
  border: 1px solid var(--line-strong);
  background: var(--ink);
  color: var(--cloud);
  box-shadow: 10px 10px 0 rgba(11, 27, 43, .1);
}

.page-contact .ct-panel-vein{
  position: absolute;
  inset: 0;
  z-index: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: .42;
}

.page-contact .ct-panel::after{
  content: "";
  position: absolute;
  inset: 0;
  z-index: 1;
  background: linear-gradient(180deg, rgba(11, 27, 43, .5) 0%, rgba(7, 19, 32, .93) 74%);
  pointer-events: none;
}

.page-contact .ct-panel-body{
  position: relative;
  z-index: 2;
  padding: var(--ct-pad);
}

.page-contact .ct-panel-kicker{
  margin: 0 0 6px;
  font-size: 11px;
  letter-spacing: .22em;
  text-transform: uppercase;
  color: var(--gold);
}

.page-contact .ct-panel h2{
  margin: 0 0 var(--sp-2);
  font-family: var(--font-display);
  font-size: clamp(19px, 2.6vw, 25px);
  font-weight: 800;
  line-height: 1.3;
  letter-spacing: -.01em;
}

.page-contact .ct-panel-note{
  margin: 0 0 var(--sp-3);
  font-size: 14px;
  line-height: 1.75;
  color: rgba(244, 247, 250, .68);
}

.page-contact .ct-lines{
  border-bottom: 1px solid var(--line);
}

.page-contact .ct-line{
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  align-items: center;
  gap: 2px var(--sp-2);
  padding-block: 14px;
  border-top: 1px solid var(--line);
}

.page-contact .ct-label{
  grid-column: 1 / -1;
  margin: 0;
  font-size: 11px;
  letter-spacing: .16em;
  text-transform: uppercase;
  color: var(--mist);
}

.page-contact .ct-value{
  margin: 0;
  min-width: 0;
  font-size: clamp(13px, 3.4vw, 17px);
  line-height: 1.5;
  word-break: break-all;
  color: var(--cloud);
}

.page-contact .ct-value a{
  color: var(--cyan-soft);
  text-decoration: none;
  border-bottom: 1px solid rgba(143, 247, 238, .34);
  transition: color var(--t) var(--ease), border-color var(--t) var(--ease);
}

.page-contact .ct-value a:hover,
.page-contact .ct-value a:focus-visible{
  color: var(--cyan);
  border-bottom-color: var(--cyan);
}

.page-contact .copy-btn{
  flex: 0 0 auto;
  padding: 6px 10px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .1em;
  color: var(--cyan-soft);
  background: rgba(25, 227, 209, .08);
  border: 1px solid var(--line-strong);
  border-radius: var(--radius);
  cursor: pointer;
  transition: background var(--t) var(--ease), color var(--t) var(--ease), border-color var(--t) var(--ease);
}

.page-contact .copy-btn:hover,
.page-contact .copy-btn:focus-visible{
  color: var(--ink);
  background: var(--cyan);
  border-color: var(--cyan);
}

.page-contact .copy-btn[data-copied="true"]{
  color: var(--ink);
  background: var(--gold);
  border-color: var(--gold);
}

.page-contact .ct-panel-foot{
  margin: var(--sp-3) 0 0;
  font-size: 11px;
  letter-spacing: .14em;
  color: var(--mist);
}

/* ---------- 右侧内容流 ---------- */
.page-contact .ct-block{
  padding-top: var(--sp-2);
  margin-bottom: clamp(34px, 5vw, 56px);
  border-top: 2px solid var(--ink);
}

.page-contact .ct-block:last-of-type{
  margin-bottom: var(--sp-4);
}

.page-contact .ct-block-head{
  display: flex;
  align-items: baseline;
  gap: 12px;
  margin-bottom: 12px;
}

.page-contact .ct-block-no{
  flex: 0 0 auto;
  font-size: 12px;
  letter-spacing: .16em;
  color: var(--orange);
}

.page-contact .ct-block h2{
  margin: 0;
  font-family: var(--font-display);
  font-size: clamp(20px, 3.2vw, 28px);
  font-weight: 800;
  line-height: 1.25;
  letter-spacing: -.015em;
  color: var(--ink);
}

.page-contact .ct-block-lede{
  max-width: 64ch;
  margin: 0 0 var(--sp-3);
  font-size: 15px;
  line-height: 1.8;
  color: var(--graphite-2);
}

/* 准备清单 */
.page-contact .ct-checklist{
  display: grid;
  gap: 1px;
  margin: 0;
  padding: 0;
  list-style: none;
  background: var(--ct-accent-line);
  border: 1px solid var(--ct-accent-line);
}

.page-contact .ct-checklist li{
  display: grid;
  gap: 3px;
  padding: 12px 16px;
  background: var(--cloud);
}

.page-contact .ct-checklist strong{
  font-size: 15px;
  font-weight: 700;
  color: var(--ink);
}

.page-contact .ct-checklist span{
  font-size: 14px;
  line-height: 1.7;
  color: var(--graphite-2);
}

/* 五类分流 */
.page-contact .ct-branches{
  display: grid;
  gap: 10px;
}

.page-contact .ct-branch{
  border: 1px solid var(--ct-accent-line);
  border-left: 3px solid var(--accent, var(--cyan));
  background: #fff;
  transition: box-shadow var(--t) var(--ease), border-color var(--t) var(--ease);
}

.page-contact .ct-branch[open]{
  box-shadow: 6px 6px 0 rgba(11, 27, 43, .07);
}

.page-contact .ct-branch--a{ --accent: var(--cyan); }
.page-contact .ct-branch--b{ --accent: var(--gold); }
.page-contact .ct-branch--c{ --accent: var(--orange); }
.page-contact .ct-branch--d{ --accent: var(--mist); }
.page-contact .ct-branch--e{ --accent: var(--teal); }

.page-contact .ct-branch summary{
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 14px 16px;
  list-style: none;
  cursor: pointer;
  transition: background var(--t) var(--ease);
}

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

.page-contact .ct-branch summary:hover,
.page-contact .ct-branch summary:focus-visible{
  background: rgba(25, 227, 209, .06);
}

.page-contact .ct-branch summary::after{
  content: "+";
  margin-left: auto;
  font-family: var(--font-mono);
  font-size: 16px;
  line-height: 1;
  color: var(--accent, var(--cyan));
}

.page-contact .ct-branch[open] summary::after{
  content: "−";
}

.page-contact .ct-branch-no{
  flex: 0 0 auto;
  font-size: 12px;
  letter-spacing: .12em;
  color: var(--accent, var(--cyan));
}

.page-contact .ct-branch-name{
  font-size: 15px;
  font-weight: 700;
  color: var(--ink);
}

.page-contact .ct-branch-body{
  padding: 0 16px 16px 16px;
  border-top: 1px solid var(--ct-accent-line);
}

.page-contact .ct-branch-body p{
  margin: 12px 0;
  font-size: 14px;
  line-height: 1.8;
  color: var(--graphite-2);
}

.page-contact .ct-branch-body ul{
  display: grid;
  gap: 6px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-contact .ct-branch-body li{
  position: relative;
  padding-left: 16px;
  font-size: 14px;
  line-height: 1.7;
  color: var(--ink);
}

.page-contact .ct-branch-body li::before{
  content: "";
  position: absolute;
  left: 0;
  top: .62em;
  width: 6px;
  height: 6px;
  background: var(--accent, var(--cyan));
}

.page-contact .ct-branch-link{
  margin-bottom: 0;
}

.page-contact .ct-branch-link a{
  color: var(--teal);
  text-decoration: underline;
  text-underline-offset: 3px;
}

.page-contact .ct-branch-link a:hover{
  color: var(--orange);
}

/* 地址与备案 */
.page-contact .ct-info-table{
  width: 100%;
  border-collapse: collapse;
  font-size: 15px;
}

.page-contact .ct-info-table tr{
  border-bottom: 1px solid var(--ct-accent-line);
}

.page-contact .ct-info-table th{
  width: 32%;
  padding: 14px 16px 14px 0;
  text-align: left;
  vertical-align: top;
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 500;
  letter-spacing: .1em;
  color: var(--graphite-2);
}

.page-contact .ct-info-table td{
  padding: 14px 0;
  line-height: 1.7;
  color: var(--ink);
  word-break: break-word;
}

/* 邮件模板 */
.page-contact .ct-template{
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  border: 1px solid var(--ct-accent-line);
  background: #fff;
  box-shadow: 8px 8px 0 var(--paper);
}

.page-contact .ct-template-media{
  position: relative;
  min-height: 140px;
  background: var(--ink);
  overflow: hidden;
}

.page-contact .ct-template-media img{
  display: block;
  width: 100%;
  height: 100%;
  min-height: 140px;
  object-fit: cover;
  opacity: .9;
}

.page-contact .ct-template-body{
  min-width: 0;
  padding: clamp(16px, 3vw, 26px);
}

.page-contact .ct-tpl-subject{
  margin: 0 0 12px;
  font-size: 12px;
  line-height: 1.7;
  color: var(--teal);
  word-break: break-word;
}

.page-contact .ct-tpl-text{
  margin: 0 0 var(--sp-2);
  padding: 14px 16px;
  font-family: var(--font-mono);
  font-size: 12.5px;
  line-height: 1.9;
  color: var(--ink);
  white-space: pre-wrap;
  word-break: break-word;
  overflow-wrap: anywhere;
  background: var(--paper);
  border-left: 2px solid var(--gold);
}

.page-contact .ct-tpl-btn{
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .08em;
}

.page-contact .ct-rhythm{
  margin-top: var(--sp-3);
  padding: 16px clamp(14px, 2.4vw, 20px);
  background: var(--graphite);
  border-left: 3px solid var(--gold);
}

.page-contact .ct-rhythm-title{
  margin: 0 0 8px;
  font-size: 11px;
  letter-spacing: .18em;
  text-transform: uppercase;
  color: var(--gold);
}

.page-contact .ct-rhythm p:last-child{
  margin: 0;
  font-size: 14px;
  line-height: 1.8;
  color: rgba(244, 247, 250, .82);
}

/* 相关入口 */
.page-contact .ct-next{
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 1px;
  background: var(--ct-accent-line);
  border: 1px solid var(--ct-accent-line);
}

.page-contact .ct-next a{
  display: block;
  padding: 14px 16px;
  font-size: 14px;
  color: var(--ink);
  text-decoration: none;
  background: var(--cloud);
  border-left: 3px solid transparent;
  transition: border-color var(--t) var(--ease), background var(--t) var(--ease), color var(--t) var(--ease);
}

.page-contact .ct-next a:hover,
.page-contact .ct-next a:focus-visible{
  border-left-color: var(--orange);
  background: #fff;
  color: var(--teal);
}

/* ---------- 断点 ---------- */
@media (min-width: 620px){
  .page-contact .ct-next{
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
  .page-contact .ct-checklist li{
    grid-template-columns: 116px minmax(0, 1fr);
    align-items: baseline;
    gap: 0 16px;
  }
}

@media (min-width: 780px){
  .page-contact .ct-template{
    grid-template-columns: minmax(0, 220px) minmax(0, 1fr);
  }
  .page-contact .ct-template-media,
  .page-contact .ct-template-media img{
    min-height: 100%;
  }
}

@media (min-width: 980px){
  .page-contact .ct-grid{
    grid-template-columns: minmax(0, 368px) minmax(0, 1fr);
    gap: clamp(32px, 4vw, 56px);
  }
  .page-contact .ct-panel{
    position: sticky;
    top: 96px;
  }
}

@media (prefers-reduced-motion: reduce){
  .page-contact *,
  .page-contact *::before,
  .page-contact *::after{
    transition-duration: .001ms !important;
    animation-duration: .001ms !important;
  }
}
<<<></>>>