.page-contact {
  --ct-cut-s: 12px;
  --ct-cut-l: 24px;
  --ct-pad: clamp(18px, 2.6vw, 28px);
  --ct-border-glow: linear-gradient(150deg, rgba(255, 122, 26, .72), rgba(30, 39, 72, .92) 48%, rgba(123, 92, 255, .55));
  color: var(--c-moon);
  padding-bottom: clamp(32px, 6vw, 72px);
}

.page-contact .breadcrumbs {
  padding-top: clamp(14px, 2vw, 22px);
}

/* ---------- 首屏 ---------- */
.page-contact .ct-hero {
  position: relative;
  isolation: isolate;
  overflow: hidden;
  padding-block: clamp(22px, 3.6vw, 44px) clamp(38px, 5.5vw, 72px);
  border-bottom: 1px solid var(--c-line);
}

.page-contact .ct-hero::before {
  content: "";
  position: absolute;
  inset: -25% -12% auto -12%;
  height: 160%;
  z-index: -2;
  pointer-events: none;
  background:
    radial-gradient(58% 62% at 6% 2%, rgba(123, 92, 255, .26), transparent 64%),
    radial-gradient(46% 58% at 98% -4%, rgba(255, 122, 26, .2), transparent 68%);
}

.page-contact .ct-hero::after {
  content: "";
  position: absolute;
  inset: 0;
  z-index: -1;
  pointer-events: none;
  background-image:
    linear-gradient(to right, rgba(30, 39, 72, .5) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(30, 39, 72, .5) 1px, transparent 1px);
  background-size: 24px 24px;
  -webkit-mask-image: linear-gradient(to bottom, #000 0%, transparent 84%);
  mask-image: linear-gradient(to bottom, #000 0%, transparent 84%);
}

.page-contact .ct-hero__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(24px, 3.4vw, 38px);
}

.page-contact .ct-hero__lede {
  margin-top: clamp(14px, 2vw, 20px);
  max-width: 60ch;
}

.page-contact .ct-hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: clamp(20px, 2.8vw, 30px);
}

/* 值班面板 */
.page-contact .ct-desk {
  padding: var(--ct-pad);
  border: 1px solid transparent;
  background:
    linear-gradient(180deg, rgba(20, 26, 51, .96), rgba(11, 16, 32, .96)) padding-box,
    var(--ct-border-glow) border-box;
  clip-path: polygon(0 0, calc(100% - var(--ct-cut-l)) 0, 100% var(--ct-cut-l), 100% 100%, 0 100%);
}

.page-contact .ct-desk__list {
  margin: clamp(16px, 2.2vw, 22px) 0 0;
  display: grid;
}

.page-contact .ct-desk__row {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 16px;
  padding: 11px 0;
  border-top: 1px solid var(--c-line);
}

.page-contact .ct-desk__row:first-child {
  border-top: 0;
}

.page-contact .ct-desk__row dt {
  font-size: 14px;
  letter-spacing: .04em;
  color: var(--c-mist);
}

.page-contact .ct-desk__row dd {
  margin: 0;
  font-size: 14px;
  color: var(--c-white);
  text-align: right;
}

.page-contact .ct-desk__note {
  margin: clamp(16px, 2.2vw, 20px) 0 0;
  padding-top: 14px;
  border-top: 1px dashed var(--c-line);
  font-size: 14px;
  line-height: 1.7;
  color: var(--c-mist);
}

/* ---------- 双栏主体 ---------- */
.page-contact .ct-split {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(28px, 4vw, 48px);
}

.page-contact .ct-figure {
  margin: 0 0 clamp(24px, 3.2vw, 34px);
  border: 1px solid var(--c-line);
}

/* 工单时间线 */
.page-contact .ct-timeline {
  position: relative;
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-contact .ct-timeline::before {
  content: "";
  position: absolute;
  left: 15px;
  top: 10px;
  bottom: 10px;
  width: 2px;
  opacity: .6;
  background: linear-gradient(to bottom, var(--c-green), var(--c-orange) 40%, var(--c-violet) 72%, var(--c-green));
}

.page-contact .ct-node {
  position: relative;
  padding-left: 50px;
  padding-bottom: clamp(22px, 3.2vw, 34px);
}

.page-contact .ct-node:last-child {
  padding-bottom: 0;
}

.page-contact .ct-node::before {
  content: "";
  position: absolute;
  left: 8px;
  top: 7px;
  width: 14px;
  height: 14px;
  border-radius: 50%;
  background: var(--c-void);
  border: 2px solid var(--c-orange);
  box-shadow: 0 0 0 4px rgba(255, 122, 26, .12);
}

.page-contact .ct-node--green::before {
  border-color: var(--c-green);
  box-shadow: 0 0 0 4px rgba(53, 242, 160, .12);
}

.page-contact .ct-node--violet::before {
  border-color: var(--c-violet);
  box-shadow: 0 0 0 4px rgba(123, 92, 255, .14);
}

.page-contact .ct-node__head {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px;
}

.page-contact .ct-node__idx {
  font-size: 13px;
  letter-spacing: .1em;
  color: var(--c-amber);
}

.page-contact .ct-node__title {
  margin: 0;
  font-family: var(--font-serif);
  font-size: clamp(20px, 2.6vw, 24px);
  font-weight: 700;
  color: var(--c-white);
  transition: color var(--t-fast) var(--ease);
}

.page-contact .ct-node:hover .ct-node__title {
  color: var(--c-orange);
}

.page-contact .ct-node__body {
  margin: 12px 0 0;
  max-width: 68ch;
  line-height: 1.85;
  color: var(--c-moon);
}

.page-contact .ct-node__note {
  margin: 10px 0 0;
  font-size: 13px;
  color: var(--c-mist);
}

.page-contact .ct-node__note::before {
  content: "// ";
  color: var(--c-violet);
}

/* 侧栏卡片 */
.page-contact .ct-split__side {
  display: flex;
  flex-direction: column;
  gap: clamp(18px, 2.6vw, 26px);
}

.page-contact .ct-side-card {
  padding: var(--ct-pad);
  border: 1px solid transparent;
  background:
    linear-gradient(180deg, rgba(20, 26, 51, .92), rgba(11, 16, 32, .92)) padding-box,
    var(--ct-border-glow) border-box;
  clip-path: polygon(0 0, calc(100% - var(--ct-cut-l)) 0, 100% var(--ct-cut-l), 100% 100%, 0 100%);
}

.page-contact .ct-side-card--quiet {
  background:
    linear-gradient(180deg, rgba(11, 16, 32, .9), rgba(5, 7, 15, .9)) padding-box,
    linear-gradient(160deg, rgba(123, 92, 255, .5), rgba(30, 39, 72, .9)) border-box;
}

.page-contact .ct-side-card__title {
  margin: 0;
  color: var(--c-white);
}

.page-contact .ct-side-card__lede {
  margin: 12px 0 0;
  font-size: 15px;
  line-height: 1.8;
  color: var(--c-mist);
}

.page-contact .ct-side-card__fine {
  margin: 16px 0 0;
  padding-top: 12px;
  border-top: 1px dashed var(--c-line);
  font-size: 12.5px;
  color: var(--c-mist);
}

.page-contact .ct-checklist {
  display: grid;
  gap: 10px;
  margin: clamp(16px, 2.2vw, 20px) 0 0;
  padding: 0;
  list-style: none;
}

.page-contact .ct-checklist label {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  padding: 12px 14px;
  border: 1px solid var(--c-line);
  background: rgba(20, 26, 51, .58);
  cursor: pointer;
  font-size: 14.5px;
  line-height: 1.65;
  color: var(--c-moon);
  transition: border-color var(--t-fast) var(--ease), background var(--t-fast) var(--ease);
}

.page-contact .ct-checklist label:hover {
  border-color: var(--c-orange);
  background: rgba(20, 26, 51, .88);
}

.page-contact .ct-check {
  flex: 0 0 auto;
  width: 18px;
  height: 18px;
  margin: 3px 0 0;
  position: relative;
  appearance: none;
  -webkit-appearance: none;
  border: 1px solid var(--c-mist);
  background: transparent;
  cursor: pointer;
  transition: border-color var(--t-fast) var(--ease), background var(--t-fast) var(--ease);
}

.page-contact .ct-check:checked {
  border-color: var(--c-green);
  background: rgba(53, 242, 160, .16);
}

.page-contact .ct-check:checked::after {
  content: "";
  position: absolute;
  inset: 3px;
  background: var(--c-green);
}

.page-contact .ct-check:focus-visible {
  outline: 2px solid var(--c-violet);
  outline-offset: 2px;
}

.page-contact .ct-checklist input:checked + span {
  color: var(--c-mist);
  text-decoration: line-through;
  text-decoration-color: rgba(110, 123, 168, .7);
}

.page-contact .ct-side-links {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: clamp(16px, 2.2vw, 22px);
}

/* ---------- 联络方式 ---------- */
.page-contact .ct-banner {
  margin: 0 0 clamp(22px, 3vw, 32px);
  border: 1px solid var(--c-line);
}

.page-contact .ct-channels {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(16px, 2.4vw, 24px);
}

.page-contact .ct-channel {
  padding: var(--ct-pad);
  border: 1px solid var(--c-line);
  background: linear-gradient(170deg, rgba(20, 26, 51, .9), rgba(11, 16, 32, .9));
  clip-path: polygon(0 0, calc(100% - var(--ct-cut-s)) 0, 100% var(--ct-cut-s), 100% 100%, 0 100%);
  transition: border-color var(--t-fast) var(--ease), box-shadow var(--t-fast) var(--ease);
}

.page-contact .ct-channel:hover {
  border-color: rgba(255, 122, 26, .75);
  box-shadow: 0 0 0 1px rgba(255, 122, 26, .28), 0 14px 34px -22px rgba(255, 122, 26, .8);
}

.page-contact .ct-channel__kind {
  display: inline-block;
  padding: 3px 9px;
  font-size: 12px;
  letter-spacing: .12em;
  color: var(--c-violet);
  border: 1px solid rgba(123, 92, 255, .45);
  background: rgba(123, 92, 255, .1);
}

.page-contact .ct-channel__title {
  margin: 14px 0 0;
  font-family: var(--font-serif);
  font-size: 20px;
  font-weight: 700;
  color: var(--c-white);
}

.page-contact .ct-channel__value {
  margin: 12px 0 0;
  font-size: clamp(15px, 2vw, 17px);
  color: var(--c-orange);
  word-break: break-word;
  text-shadow: 0 0 20px rgba(255, 122, 26, .3);
}

.page-contact .ct-channel__desc {
  margin: 12px 0 0;
  font-size: 14.5px;
  line-height: 1.8;
  color: var(--c-mist);
}

/* ---------- 服务时间与时效 ---------- */
.page-contact .ct-sla {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(20px, 3vw, 34px);
  align-items: start;
}

.page-contact .ct-sla__panel {
  padding: var(--ct-pad);
}

.page-contact .ct-clock {
  margin: 12px 0 0;
  font-size: clamp(24px, 4.4vw, 36px);
  font-weight: 500;
  color: var(--c-orange);
  letter-spacing: .02em;
  text-shadow: 0 0 22px rgba(255, 122, 26, .38);
}

.page-contact .ct-clock__note {
  margin: 14px 0 0;
  font-size: 14px;
  line-height: 1.8;
  color: var(--c-mist);
}

.page-contact .ct-sla__stats {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
  gap: clamp(16px, 2.2vw, 22px);
}

.page-contact .ct-stat {
  padding: clamp(16px, 2.2vw, 22px);
  border: 1px solid var(--c-line);
  border-top: 2px solid rgba(255, 122, 26, .7);
  background: rgba(20, 26, 51, .55);
}

.page-contact .ct-stat .stat-value {
  display: block;
  font-size: clamp(26px, 3.6vw, 34px);
  font-weight: 500;
  color: var(--c-white);
}

.page-contact .ct-stat .stat-value small {
  margin-left: 2px;
  font-size: .46em;
  color: var(--c-amber);
}

.page-contact .ct-stat .stat-label {
  display: block;
  margin-top: 10px;
  font-size: 13.5px;
  line-height: 1.7;
  color: var(--c-mist);
}

/* ---------- 合作与渠道对接 ---------- */
.page-contact .ct-partners {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(16px, 2.4vw, 24px);
}

.page-contact .ct-partner {
  padding: var(--ct-pad);
  border: 1px solid var(--c-line);
  border-left: 3px solid var(--c-violet);
  background: linear-gradient(165deg, rgba(20, 26, 51, .86), rgba(11, 16, 32, .86));
  transition: border-color var(--t-fast) var(--ease);
}

.page-contact .ct-partner:hover {
  border-left-color: var(--c-orange);
}

.page-contact .ct-partner__title {
  margin: 0;
  font-family: var(--font-serif);
  font-size: clamp(19px, 2.4vw, 22px);
  font-weight: 700;
  color: var(--c-white);
}

.page-contact .ct-partner__desc {
  margin: 12px 0 0;
  font-size: 15px;
  line-height: 1.85;
  color: var(--c-moon);
}

.page-contact .ct-partner__list {
  margin: clamp(14px, 2vw, 18px) 0 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 9px;
}

.page-contact .ct-partner__list li {
  position: relative;
  padding-left: 20px;
  font-size: 14px;
  line-height: 1.7;
  color: var(--c-mist);
}

.page-contact .ct-partner__list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: .62em;
  width: 9px;
  height: 2px;
  background: var(--c-amber);
}

.page-contact .ct-partner__foot {
  margin: clamp(22px, 3vw, 30px) 0 0;
  max-width: 74ch;
  font-size: 14.5px;
  line-height: 1.85;
  color: var(--c-mist);
}

.page-contact .ct-partner__foot a {
  color: var(--c-orange);
  text-decoration: none;
  border-bottom: 1px solid rgba(255, 122, 26, .5);
  transition: color var(--t-fast) var(--ease), border-color var(--t-fast) var(--ease);
}

.page-contact .ct-partner__foot a:hover {
  color: var(--c-amber);
  border-bottom-color: var(--c-amber);
}

/* ---------- 响应式 ---------- */
@media (min-width: 620px) {
  .page-contact .ct-channels {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (min-width: 780px) {
  .page-contact .ct-partners {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (min-width: 900px) {
  .page-contact .ct-hero__grid {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
    align-items: end;
    gap: clamp(28px, 4vw, 52px);
  }

  .page-contact .ct-sla {
    grid-template-columns: minmax(0, 5fr) minmax(0, 7fr);
  }
}

@media (min-width: 1024px) {
  .page-contact .ct-split {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
    align-items: start;
  }

  .page-contact .ct-channels {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}
</main>