.page-contact {
  position: relative;
  isolation: isolate;
  overflow-x: clip;
  background: var(--void);
  color: var(--text);
  font-family: var(--font-body);
  padding-bottom: clamp(40px, 6vw, 72px);
}

.page-contact .c-canvas {
  position: absolute;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  background-image:
    linear-gradient(to right, var(--grid) 1px, transparent 1px),
    linear-gradient(to bottom, var(--grid) 1px, transparent 1px);
  background-size: 96px 96px;
  opacity: 0.22;
  -webkit-mask-image: linear-gradient(to bottom, #000 0, rgba(0, 0, 0, 0.4) 48%, transparent 84%);
  mask-image: linear-gradient(to bottom, #000 0, rgba(0, 0, 0, 0.4) 48%, transparent 84%);
}

.page-contact > .shell,
.page-contact > section {
  position: relative;
  z-index: 1;
}

/* 面包屑 */
.page-contact .breadcrumb {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  padding: 22px 0 0;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--idx);
}
.page-contact .breadcrumb a {
  color: var(--cool);
  text-decoration: none;
  transition: color 0.16s ease;
}
.page-contact .breadcrumb a:hover { color: var(--cyan); }
.page-contact .breadcrumb-sep { color: var(--edge); }

/* 通用区块 */
.page-contact .section { padding: clamp(46px, 7vw, 84px) 0; }
.page-contact .section--tight { padding: clamp(34px, 5vw, 58px) 0; }

.page-contact .section-head {
  margin-bottom: clamp(22px, 3.4vw, 38px);
  max-width: 64ch;
}
.page-contact .eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  margin: 0;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--green);
}
.page-contact .eyebrow::before {
  content: "";
  width: 22px;
  height: 1px;
  background: var(--green);
  flex: none;
}
.page-contact .section-title {
  margin: 12px 0 0;
  font-family: var(--font-display);
  font-size: clamp(23px, 4vw, 38px);
  line-height: 1.14;
  letter-spacing: -0.01em;
  color: var(--text);
}
.page-contact .lede {
  margin: 14px 0 0;
  max-width: 58ch;
  font-size: clamp(14.5px, 1.6vw, 16.5px);
  line-height: 1.78;
  color: var(--cool);
}

/* 首屏 */
.page-contact .c-hero { padding: 24px 0 clamp(40px, 7vw, 70px); }
.page-contact .c-hero-in {
  display: grid;
  gap: clamp(26px, 4.4vw, 46px);
  align-items: center;
}
.page-contact .c-hero h1 {
  margin: 14px 0 0;
  font-family: var(--font-display);
  font-size: clamp(34px, 8.2vw, 72px);
  line-height: 1.03;
  letter-spacing: -0.02em;
  color: var(--text);
}
.page-contact .c-hero .lede {
  margin: 18px 0 0;
  max-width: 48ch;
}

.page-contact .c-quick {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(102px, 1fr));
  gap: 14px;
  margin-top: 26px;
  padding-top: 20px;
  border-top: 1px solid var(--edge);
}
.page-contact .c-quick-item {
  display: flex;
  flex-direction: column;
  gap: 6px;
  min-width: 0;
}
.page-contact .c-quick-label {
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--idx);
  white-space: nowrap;
}
.page-contact .c-quick-num {
  font-family: var(--font-mono);
  font-size: clamp(14px, 1.9vw, 18px);
  line-height: 1.24;
  color: var(--green);
  word-break: break-word;
}
.page-contact .c-quick-num--cyan { color: var(--cyan); }
.page-contact .c-quick-num--orange { color: var(--orange); }

.page-contact .c-hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 28px;
}
.page-contact .c-hero-actions .btn { max-width: 100%; }

.page-contact .c-hero-fig {
  position: relative;
  margin: 0;
  overflow: hidden;
  border: 1px solid var(--edge);
  background: var(--panel);
  clip-path: polygon(0 7%, 100% 0, 100% 93%, 0 100%);
}
.page-contact .c-hero-fig img {
  display: block;
  width: 100%;
  height: auto;
  max-width: 100%;
  aspect-ratio: 3 / 2;
  object-fit: cover;
  filter: saturate(0.92) contrast(1.06);
}
.page-contact .c-hero-fig::after {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background-image:
    linear-gradient(to right, rgba(53, 214, 232, 0.16) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(53, 214, 232, 0.16) 1px, transparent 1px);
  background-size: 52px 52px;
  mix-blend-mode: screen;
}

/* 三条通道 */
.page-contact .c-ch-grid {
  display: grid;
  gap: 14px;
}
.page-contact .c-ch {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 12px;
  padding: 22px 20px 20px;
  border: 1px solid var(--edge);
  background: linear-gradient(165deg, rgba(14, 26, 51, 0.92), rgba(7, 13, 27, 0.86));
}
.page-contact .c-ch::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 2px;
  background: linear-gradient(to bottom, var(--green), rgba(47, 224, 138, 0) 74%);
}
.page-contact .c-ch--mail::before {
  background: linear-gradient(to bottom, var(--cyan), rgba(53, 214, 232, 0) 74%);
}
.page-contact .c-ch--tel::before {
  background: linear-gradient(to bottom, var(--orange), rgba(255, 106, 43, 0) 74%);
}
.page-contact .c-ch h3 {
  margin: 0;
  font-family: var(--font-body);
  font-size: 17px;
  font-weight: 700;
  letter-spacing: 0.01em;
  color: var(--text);
}
.page-contact .c-ch p {
  margin: 0;
  font-size: 14px;
  line-height: 1.75;
  color: var(--cool);
}
.page-contact .c-ch-steps {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin: 0;
  padding: 0;
  list-style: none;
}
.page-contact .c-ch-steps li {
  padding: 4px 8px;
  border: 1px solid var(--edge);
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.06em;
  color: var(--cool);
  white-space: nowrap;
}

.page-contact .c-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  margin-top: auto;
  padding-top: 6px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.1em;
  color: var(--cyan);
  text-decoration: none;
}
.page-contact .c-link::after {
  content: "→";
  transition: transform 0.16s ease;
}
.page-contact .c-link:hover::after { transform: translateX(4px); }
.page-contact .c-link:focus-visible {
  outline: 2px solid var(--cyan);
  outline-offset: 3px;
}

.page-contact .c-ch .copy-btn {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 6px;
  width: 100%;
  margin-top: auto;
  padding: 10px 12px;
  border: 1px solid var(--edge);
  background: rgba(53, 214, 232, 0.06);
  color: var(--text);
  font-family: var(--font-mono);
  font-size: 12px;
  text-align: left;
  cursor: pointer;
  transition: border-color 0.16s ease, background 0.16s ease;
}
.page-contact .c-ch .copy-btn:hover {
  border-color: var(--cyan);
  background: rgba(53, 214, 232, 0.12);
}
.page-contact .c-ch .copy-btn:focus-visible {
  outline: 2px solid var(--cyan);
  outline-offset: 2px;
}
.page-contact .c-ch .copy-val {
  font-family: var(--font-mono);
  font-size: 12.5px;
  line-height: 1.4;
  word-break: break-all;
}
.page-contact .c-ch .copy-hint {
  font-size: 10px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--idx);
}
.page-contact .c-ch .copy-btn[data-copied="true"] .copy-hint {
  color: var(--orange);
}

.page-contact .c-note {
  margin: 18px 0 0;
  font-size: 13px;
  line-height: 1.8;
  color: var(--idx);
}
.page-contact .c-note a {
  margin-left: 8px;
  color: var(--cyan);
  text-decoration: none;
  border-bottom: 1px solid rgba(53, 214, 232, 0.35);
}
.page-contact .c-note a:hover { border-bottom-color: var(--cyan); }

/* 斜向分栏 */
.page-contact .c-split-in {
  display: grid;
  gap: 30px;
}
.page-contact .c-split-left .section-title,
.page-contact .c-split-right .section-title {
  font-size: clamp(21px, 3.2vw, 30px);
}

.page-contact .step-list {
  margin: 20px 0 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 0;
}
.page-contact .step {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 14px;
  align-items: start;
  padding: 15px 0;
  border-bottom: 1px solid rgba(42, 58, 85, 0.7);
}
.page-contact .step:last-child { border-bottom: 0; }
.page-contact .step-num {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  flex: none;
  width: 28px;
  height: 28px;
  border: 1px solid rgba(255, 106, 43, 0.45);
  background: rgba(255, 106, 43, 0.08);
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--orange);
}
.page-contact .step h4 {
  margin: 0 0 5px;
  font-size: 15px;
  font-weight: 600;
  line-height: 1.5;
  color: var(--text);
}
.page-contact .step p {
  margin: 0;
  font-size: 13.8px;
  line-height: 1.72;
  color: var(--cool);
}

.page-contact .filter-bar {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 20px 0 18px;
}
.page-contact .filter-btn {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  padding: 9px 13px;
  border: 1px solid var(--edge);
  background: transparent;
  color: var(--cool);
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: 0.1em;
  cursor: pointer;
  transition: border-color 0.16s ease, color 0.16s ease, background 0.16s ease;
}
.page-contact .filter-btn:hover {
  border-color: var(--cyan);
  color: var(--text);
  background: rgba(53, 214, 232, 0.07);
}
.page-contact .filter-btn:focus-visible {
  outline: 2px solid var(--cyan);
  outline-offset: 2px;
}
.page-contact .filter-btn[aria-pressed="true"] {
  border-color: var(--green);
  color: var(--text);
  background: rgba(47, 224, 138, 0.1);
}
.page-contact .filter-count {
  font-size: 10.5px;
  color: var(--idx);
}

.page-contact .c-check-list {
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 10px;
}
.page-contact .c-check-list li {
  display: flex;
  gap: 10px;
  padding: 13px 15px;
  border: 1px solid var(--edge);
  border-left: 2px solid var(--cyan);
  background: rgba(14, 26, 51, 0.5);
  font-size: 14.2px;
  line-height: 1.68;
  color: var(--cool);
}
.page-contact .c-check-list li[hidden] { display: none; }
.page-contact .c-check-list b {
  color: var(--text);
  font-weight: 600;
}

/* 回复时间 */
.page-contact .c-res-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 0;
  border-bottom: 1px solid var(--edge);
}
.page-contact .c-res-item {
  display: flex;
  flex-direction: column;
  gap: 6px;
  padding: 20px 18px;
  border-top: 1px solid var(--edge);
}
.page-contact .c-res-label {
  font-family: var(--font-mono);
  font-size: 10.5px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--idx);
}
.page-contact .c-res-num {
  display: inline-flex;
  align-items: baseline;
  flex-wrap: wrap;
  gap: 4px;
  font-family: var(--font-mono);
  font-size: clamp(26px, 4.4vw, 40px);
  line-height: 1.05;
  letter-spacing: -0.02em;
  color: var(--green);
}
.page-contact .c-res-num--cyan { color: var(--cyan); }
.page-contact .c-res-num--orange { color: var(--orange); }
.page-contact .c-res-unit {
  font-family: var(--font-body);
  font-size: 12.5px;
  letter-spacing: 0;
  color: var(--cool);
}
.page-contact .c-res-item p {
  margin: 4px 0 0;
  font-size: 13.5px;
  line-height: 1.65;
  color: var(--cool);
}

/* 合作与媒体 */
.page-contact .c-coop-in {
  display: grid;
  gap: 26px;
}
.page-contact .c-coop-main p {
  margin: 16px 0 0;
  max-width: 62ch;
  font-size: 15px;
  line-height: 1.8;
  color: var(--cool);
}
.page-contact .c-coop-links {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 26px;
  margin-top: 20px;
}
.page-contact .c-coop-links .c-link { margin-top: 0; padding-top: 0; }

.page-contact .c-coop-side {
  display: grid;
  gap: 16px;
  padding: 20px;
  border: 1px solid var(--edge);
  background: linear-gradient(200deg, rgba(255, 106, 43, 0.08), rgba(14, 26, 51, 0.62));
}
.page-contact .c-coop-stat {
  display: flex;
  flex-direction: column;
  gap: 4px;
  padding-bottom: 14px;
  border-bottom: 1px solid rgba(42, 58, 85, 0.7);
}
.page-contact .c-coop-stat:last-child {
  padding-bottom: 0;
  border-bottom: 0;
}
.page-contact .c-coop-stat .c-res-num {
  font-size: clamp(24px, 3.6vw, 30px);
}
.page-contact .c-coop-stat span:last-child {
  font-size: 13.2px;
  line-height: 1.65;
  color: var(--cool);
}

/* 地址与备案 */
.page-contact .c-addr-in {
  display: grid;
  gap: 24px;
  align-items: center;
}
.page-contact .c-addr-fig {
  position: relative;
  margin: 0;
  overflow: hidden;
  border: 1px solid var(--edge);
  background: var(--panel);
  clip-path: polygon(0 0, 100% 6%, 100% 100%, 0 94%);
}
.page-contact .c-addr-fig img {
  display: block;
  width: 100%;
  height: auto;
  max-width: 100%;
  aspect-ratio: 10 / 7;
  object-fit: cover;
  filter: saturate(0.85) brightness(0.95);
}
.page-contact .c-addr-fig .figure-caption {
  position: absolute;
  left: 14px;
  bottom: 12px;
  margin: 0;
  font-family: var(--font-mono);
  font-size: 10.5px;
  letter-spacing: 0.16em;
  color: var(--idx);
  text-transform: uppercase;
}
.page-contact .c-addr-body .section-title {
  font-size: clamp(21px, 3.2vw, 30px);
}
.page-contact .c-addr-block {
  display: flex;
  flex-direction: column;
  gap: 4px;
  margin-top: 16px;
  padding: 14px 16px;
  border: 1px solid var(--edge);
  border-left: 2px solid var(--green);
  background: rgba(14, 26, 51, 0.55);
}
.page-contact .c-addr-k {
  font-family: var(--font-mono);
  font-size: 10.5px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--idx);
}
.page-contact .c-addr-v {
  font-family: var(--font-mono);
  font-size: 15px;
  line-height: 1.5;
  color: var(--text);
  word-break: break-word;
}
.page-contact .c-addr-note {
  margin: 16px 0 0;
  font-size: 13.5px;
  line-height: 1.78;
  color: var(--cool);
}

/* 帮助前置 */
.page-contact .c-help-in {
  position: relative;
  overflow: hidden;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  padding: clamp(22px, 3.4vw, 34px);
  border: 1px solid var(--edge);
  background: linear-gradient(110deg, rgba(47, 224, 138, 0.1), rgba(14, 26, 51, 0.78) 54%, rgba(7, 13, 27, 0.92));
}
.page-contact .c-help-in::after {
  content: "";
  position: absolute;
  right: -46px;
  top: -70px;
  bottom: -70px;
  width: 130px;
  pointer-events: none;
  background: linear-gradient(to bottom, rgba(255, 106, 43, 0.26), transparent);
  transform: rotate(20deg);
}
.page-contact .c-help-copy {
  position: relative;
  z-index: 1;
  max-width: 58ch;
}
.page-contact .c-help-copy h2 {
  margin: 0;
  font-family: var(--font-display);
  font-size: clamp(20px, 3vw, 28px);
  line-height: 1.2;
  letter-spacing: -0.01em;
  color: var(--text);
}
.page-contact .c-help-copy p {
  margin: 10px 0 0;
  font-size: 14px;
  line-height: 1.78;
  color: var(--cool);
}
.page-contact .c-help-in .btn {
  position: relative;
  z-index: 1;
}

/* 断点 */
@media (min-width: 620px) {
  .page-contact .c-res-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
  .page-contact .c-res-item:nth-child(2n) { border-left: 1px solid var(--edge); }
}

@media (min-width: 760px) {
  .page-contact .c-ch-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 18px;
  }
}

@media (min-width: 900px) {
  .page-contact .c-hero-in {
    grid-template-columns: minmax(0, 1.05fr) minmax(0, 0.95fr);
    gap: 56px;
  }
  .page-contact .c-split-in {
    position: relative;
    grid-template-columns: minmax(0, 5fr) minmax(0, 7fr);
    gap: 0;
    align-items: start;
  }
  .page-contact .c-split-in::after {
    content: "";
    position: absolute;
    top: -4%;
    bottom: -4%;
    left: 41.667%;
    width: 1px;
    pointer-events: none;
    background: linear-gradient(to bottom, transparent, var(--edge) 18%, var(--edge) 82%, transparent);
    transform: rotate(20deg);
    transform-origin: center;
  }
  .page-contact .c-split-left {
    padding: 6px clamp(48px, 6vw, 84px) 6px 0;
  }
  .page-contact .c-split-right {
    padding-left: clamp(28px, 4.6vw, 62px);
  }
  .page-contact .c-coop-in {
    grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
    gap: 52px;
    align-items: start;
  }
  .page-contact .c-addr-in {
    grid-template-columns: minmax(0, 5fr) minmax(0, 7fr);
    gap: 48px;
  }
  .page-contact .c-help-in {
    gap: 32px;
  }
}

@media (min-width: 1000px) {
  .page-contact .c-res-grid {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
  .page-contact .c-res-item:nth-child(2n) { border-left: 0; }
  .page-contact .c-res-item + .c-res-item { border-left: 1px solid var(--edge); }
}

@media (prefers-reduced-motion: reduce) {
  .page-contact .c-link::after,
  .page-contact .filter-btn,
  .page-contact .c-ch .copy-btn,
  .page-contact .breadcrumb a {
    transition: none;
  }
  .page-contact .c-link:hover::after { transform: none; }
}
<<<END>>>