/* ============================================================
   联系我们 · page-contact
   ============================================================ */

.page-contact {
  --ct-line: rgba(30, 78, 107, 0.62);
  --ct-gap: clamp(44px, 7vw, 92px);
  display: block;
  padding-bottom: clamp(56px, 9vw, 110px);
  overflow-x: clip;
}

/* ---------- 首屏 ---------- */

.page-contact .contact-hero {
  padding-top: clamp(18px, 4vw, 42px);
}

.page-contact .breadcrumb {
  margin-bottom: clamp(24px, 4vw, 42px);
}

.page-contact .breadcrumb ol {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0;
  margin: 0;
  padding: 0;
  list-style: none;
  font-family: var(--f-mono);
  font-size: 13px;
  letter-spacing: 0.06em;
}

.page-contact .breadcrumb li + li::before {
  content: "/";
  margin: 0 10px;
  color: var(--line);
}

.page-contact .breadcrumb a {
  color: var(--muted);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: color var(--t-fast), border-color var(--t-fast);
}

.page-contact .breadcrumb a:hover,
.page-contact .breadcrumb a:focus-visible {
  color: var(--signal);
  border-bottom-color: var(--signal);
}

.page-contact .breadcrumb [aria-current="page"] {
  color: var(--mist);
}

.page-contact .eyebrow {
  margin: 0 0 18px;
  font-family: var(--f-mono);
  font-size: 12px;
  letter-spacing: 0.24em;
  text-transform: uppercase;
  color: var(--signal);
}

.page-contact .h-display {
  margin: 0 0 22px;
  font-family: var(--f-display);
  font-weight: 800;
  font-size: clamp(34px, 7.4vw, 62px);
  line-height: 1.1;
  letter-spacing: 0.03em;
  color: var(--mist);
}

.page-contact .contact-hero__lead {
  max-width: 44em;
}

.page-contact .lede {
  margin: 0;
  max-width: 38em;
  font-family: var(--f-body);
  font-size: clamp(16px, 2vw, 18px);
  line-height: 1.85;
  color: var(--fade);
}

.page-contact .contact-hero__band {
  margin-top: clamp(28px, 5vw, 54px);
}

.page-contact .contact-hero__img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  aspect-ratio: 1600 / 520;
  object-fit: cover;
  border: 1px solid var(--ct-line);
  background: var(--hull);
}

/* ---------- 分屏：渠道 / 邮件示范 ---------- */

.page-contact .contact-split {
  margin-top: var(--ct-gap);
}

.page-contact .contact-split__inner {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(34px, 5vw, 56px);
}

.page-contact .h-serif {
  margin: 0 0 14px;
  font-family: var(--f-serif);
  font-weight: 600;
  font-size: clamp(22px, 3.2vw, 30px);
  line-height: 1.42;
  color: var(--mist);
}

.page-contact .contact-channels__note {
  margin: 0 0 clamp(22px, 3vw, 34px);
  max-width: 34em;
  font-size: 15px;
  line-height: 1.85;
  color: var(--muted);
}

.page-contact .contact-channels {
  margin: 0;
  padding: 0;
  list-style: none;
  border-top: 1px solid var(--ct-line);
}

.page-contact .contact-channel {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  grid-template-areas:
    "idx body"
    "copy copy";
  align-items: start;
  gap: 14px;
  padding: clamp(18px, 2.8vw, 26px) 0;
  border-bottom: 1px solid var(--ct-line);
  box-shadow: inset 0 0 0 0 var(--signal);
  transition: box-shadow var(--t-base), background-color var(--t-base);
}

.page-contact .contact-channel:hover,
.page-contact .contact-channel:focus-within {
  box-shadow: inset 3px 0 0 var(--signal);
  background: linear-gradient(90deg, rgba(255, 122, 47, 0.06), transparent 46%);
}

.page-contact .contact-channel__idx {
  grid-area: idx;
  padding-top: 3px;
  font-size: 12px;
  letter-spacing: 0.1em;
  color: var(--line);
}

.page-contact .contact-channel__body {
  grid-area: body;
  min-width: 0;
}

.page-contact .contact-channel__label {
  margin: 0 0 7px;
  font-size: 12px;
  letter-spacing: 0.16em;
  color: var(--signal);
}

.page-contact .contact-channel__value {
  margin: 0;
  font-size: clamp(15px, 2.2vw, 19px);
  line-height: 1.5;
  letter-spacing: 0.01em;
  color: var(--mist);
  word-break: break-word;
}

.page-contact .contact-channel__hint {
  margin: 9px 0 0;
  font-size: 14px;
  line-height: 1.78;
  color: var(--muted);
}

.page-contact .contact-copy {
  grid-area: copy;
  justify-self: end;
  padding: 7px 15px;
  font-family: var(--f-mono);
  font-size: 12px;
  letter-spacing: 0.1em;
  color: var(--fade);
  background: transparent;
  border: 1px solid var(--ct-line);
  border-radius: var(--radius);
  cursor: pointer;
  white-space: nowrap;
  transition: color var(--t-fast), border-color var(--t-fast), background-color var(--t-fast);
}

.page-contact .contact-copy:hover {
  color: var(--signal);
  border-color: var(--signal);
}

.page-contact .contact-copy:focus-visible {
  outline: 2px solid var(--cyan);
  outline-offset: 2px;
}

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

/* ---------- 邮件示范卡 ---------- */

.page-contact .contact-demo {
  position: relative;
  background: var(--paper);
  color: var(--ink);
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: 0 28px 64px -36px rgba(0, 0, 0, 0.85);
}

.page-contact .contact-demo__bar {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 12px 16px;
  background: var(--hull);
  border-bottom: 1px solid var(--ct-line);
}

.page-contact .contact-demo__bartitle {
  margin-right: auto;
  font-size: 11px;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--fade);
}

.page-contact .contact-copy--ink {
  color: var(--mist);
  border-color: rgba(232, 241, 246, 0.34);
}

.page-contact .contact-copy--ink:hover {
  color: var(--signal);
  border-color: var(--signal);
}

.page-contact .contact-demo__win {
  padding: clamp(18px, 3vw, 26px);
}

.page-contact .contact-demo__row {
  display: grid;
  grid-template-columns: 58px minmax(0, 1fr);
  gap: 12px;
  align-items: baseline;
  margin: 0 0 12px;
  padding-bottom: 12px;
  border-bottom: 1px dashed rgba(10, 30, 43, 0.16);
}

.page-contact .contact-demo__key {
  font-size: 12px;
  letter-spacing: 0.1em;
  color: var(--deep);
  opacity: 0.78;
}

.page-contact .contact-demo__val {
  font-size: 13px;
  line-height: 1.62;
  color: var(--ink);
  word-break: break-word;
}

.page-contact .contact-demo__body {
  margin-top: 18px;
  font-size: 14px;
  line-height: 1.95;
  color: var(--ink);
}

.page-contact .contact-demo__body p {
  margin: 0 0 6px;
}

.page-contact .contact-demo__foot {
  margin: 14px 0 0;
  font-size: 13px;
  line-height: 1.78;
  color: var(--muted);
}

/* ---------- 编号章节 ---------- */

.page-contact .contact-step {
  margin-top: var(--ct-gap);
  padding-top: clamp(28px, 4vw, 46px);
  border-top: 1px solid var(--ct-line);
}

.page-contact .contact-step__no {
  margin: 0 0 12px;
  font-size: 12px;
  letter-spacing: 0.22em;
  color: var(--signal);
}

.page-contact .contact-step__lead {
  margin: 0 0 clamp(22px, 3vw, 36px);
  max-width: 36em;
  font-size: 15px;
  line-height: 1.85;
  color: var(--muted);
}

/* 准备清单 */

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

.page-contact .contact-prep > li {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 16px;
  align-items: start;
  padding: 20px 0;
  border-bottom: 1px solid var(--ct-line);
}

.page-contact .contact-prep__no {
  padding: 2px 7px;
  font-size: 12px;
  line-height: 1.5;
  color: var(--cyan);
  border: 1px solid var(--ct-line);
  border-radius: var(--radius);
}

.page-contact .contact-prep h3 {
  margin: 0 0 7px;
  font-family: var(--f-body);
  font-size: 16px;
  font-weight: 600;
  letter-spacing: 0.02em;
  color: var(--mist);
}

.page-contact .contact-prep p {
  margin: 0;
  font-size: 14px;
  line-height: 1.85;
  color: var(--muted);
}

/* 分类与时限 */

.page-contact .contact-sla {
  width: 100%;
  border-collapse: collapse;
  font-family: var(--f-body);
}

.page-contact .contact-sla thead th {
  padding: 0 0 12px;
  text-align: left;
  font-family: var(--f-mono);
  font-size: 11px;
  font-weight: 400;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--muted);
  border-bottom: 1px solid var(--ct-line);
}

.page-contact .contact-sla tbody th,
.page-contact .contact-sla tbody td {
  padding: 20px 0;
  text-align: left;
  vertical-align: top;
  font-weight: 400;
  border-bottom: 1px solid var(--ct-line);
}

.page-contact .contact-sla tbody th {
  padding-right: 26px;
  font-size: 15px;
  line-height: 1.6;
  color: var(--mist);
  white-space: nowrap;
}

.page-contact .contact-sla tbody td {
  font-size: 15px;
  line-height: 1.85;
  color: var(--muted);
}

.page-contact .sla-dot {
  display: inline-block;
  width: 8px;
  height: 8px;
  margin-right: 10px;
  border-radius: 50%;
  vertical-align: 2px;
}

.page-contact .sla-dot--signal { background: var(--signal); }
.page-contact .sla-dot--amber  { background: var(--amber); }
.page-contact .sla-dot--cyan   { background: var(--cyan); }
.page-contact .sla-dot--mist   { background: var(--mist); }

/* ---------- 服务范围与地址 ---------- */

.page-contact .contact-place__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(26px, 4vw, 52px);
  align-items: start;
}

.page-contact .contact-place__fig {
  position: relative;
  margin: 0;
  border: 1px solid var(--ct-line);
  background: var(--hull);
  overflow: hidden;
}

.page-contact .contact-place__fig::after {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(var(--grid-line) 1px, transparent 1px),
    linear-gradient(90deg, var(--grid-line) 1px, transparent 1px);
  background-size: 44px 44px;
  opacity: 0.55;
  pointer-events: none;
}

.page-contact .contact-place__fig img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  aspect-ratio: 9 / 7;
  object-fit: cover;
}

.page-contact .contact-place__fig figcaption {
  position: relative;
  z-index: 1;
  padding: 10px 14px;
  font-family: var(--f-mono);
  font-size: 11px;
  letter-spacing: 0.14em;
  color: var(--fade);
  background: var(--hull);
  border-top: 1px solid var(--ct-line);
}

.page-contact .contact-place__text > p {
  margin: 0 0 clamp(20px, 3vw, 30px);
  max-width: 34em;
  font-size: 16px;
  line-height: 1.85;
  color: var(--fade);
}

.page-contact .contact-place__facts {
  margin: 0;
  border-top: 1px solid var(--ct-line);
}

.page-contact .contact-place__facts > div {
  display: grid;
  grid-template-columns: 92px minmax(0, 1fr);
  gap: 14px;
  padding: 14px 0;
  border-bottom: 1px solid var(--ct-line);
}

.page-contact .contact-place__facts dt {
  font-size: 13px;
  letter-spacing: 0.1em;
  color: var(--muted);
}

.page-contact .contact-place__facts dd {
  margin: 0;
  font-size: 15px;
  line-height: 1.72;
  color: var(--mist);
}

/* ---------- 备案与站点信息 ---------- */

.page-contact .contact-filing__list {
  margin: 0 0 clamp(22px, 3vw, 34px);
  padding: 0;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  border-top: 1px solid var(--ct-line);
}

.page-contact .contact-filing__list > div {
  display: grid;
  grid-template-columns: 96px minmax(0, 1fr);
  gap: 14px;
  align-items: baseline;
  padding: 15px 0;
  border-bottom: 1px solid var(--ct-line);
}

.page-contact .contact-filing__list dt {
  font-size: 13px;
  letter-spacing: 0.1em;
  color: var(--muted);
}

.page-contact .contact-filing__list dd {
  margin: 0;
  font-size: 15px;
  line-height: 1.72;
  color: var(--mist);
  word-break: break-word;
}

.page-contact .contact-filing__tail {
  margin: 0;
  max-width: 42em;
  font-size: 15px;
  line-height: 1.9;
  color: var(--muted);
}

.page-contact .contact-filing__tail a {
  color: var(--mist);
  text-decoration: none;
  border-bottom: 1px solid var(--signal);
  transition: color var(--t-fast), border-color var(--t-fast);
}

.page-contact .contact-filing__tail a:hover,
.page-contact .contact-filing__tail a:focus-visible {
  color: var(--signal);
  border-bottom-color: var(--mist);
}

/* ---------- 返回顶部 ---------- */

.page-contact .contact-totop {
  position: fixed;
  right: clamp(14px, 3vw, 28px);
  bottom: clamp(14px, 3vw, 28px);
  z-index: 40;
  display: inline-flex;
  align-items: center;
  gap: 7px;
  padding: 9px 14px;
  font-family: var(--f-mono);
  font-size: 12px;
  letter-spacing: 0.1em;
  color: var(--mist);
  text-decoration: none;
  background: var(--hull);
  border: 1px solid var(--ct-line);
  border-radius: var(--radius);
  transition: color var(--t-fast), border-color var(--t-fast), background-color var(--t-fast);
}

.page-contact .contact-totop:hover,
.page-contact .contact-totop:focus-visible {
  color: var(--signal);
  border-color: var(--signal);
  background: var(--deep);
}

.page-contact .contact-totop:focus-visible {
  outline: 2px solid var(--cyan);
  outline-offset: 2px;
}

.page-contact .contact-totop__text {
  display: none;
}

/* ---------- 断点 ---------- */

@media (min-width: 640px) {
  .page-contact .contact-channel {
    grid-template-columns: auto minmax(0, 1fr) auto;
    grid-template-areas: "idx .page-contact copy";
    align-items: center;
  }

  .page-contact .contact-copy {
    justify-self: end;
  }

  .page-contact .contact-totop__text {
    display: inline;
  }
}

@media (min-width: 768px) {
  .page-contact .contact-prep {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    column-gap: clamp(28px, 4vw, 58px);
    border-top: 0;
  }

  .page-contact .contact-prep > li {
    border-top: 1px solid var(--ct-line);
  }

  .page-contact .contact-hero__img {
    aspect-ratio: 1600 / 520;
  }
}

@media (max-width: 767px) {
  .page-contact .contact-hero__img {
    aspect-ratio: 16 / 9;
  }

  .page-contact .contact-sla thead {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    overflow: hidden;
    clip: rect(0 0 0 0);
    white-space: nowrap;
  }

  .page-contact .contact-sla,
  .page-contact .contact-sla tbody,
  .page-contact .contact-sla tr,
  .page-contact .contact-sla th,
  .page-contact .contact-sla td {
    display: block;
    width: 100%;
  }

  .page-contact .contact-sla tbody th {
    padding: 20px 0 6px;
    border-bottom: 0;
    white-space: normal;
  }

  .page-contact .contact-sla tbody td {
    padding: 0 0 20px;
    border-bottom: 1px solid var(--ct-line);
  }
}

@media (min-width: 900px) {
  .page-contact .contact-place__grid {
    grid-template-columns: minmax(0, 4.6fr) minmax(0, 5.4fr);
  }
}

@media (min-width: 1024px) {
  .page-contact .contact-split__inner {
    grid-template-columns: minmax(0, 5.6fr) minmax(0, 4.4fr);
    gap: clamp(48px, 6vw, 96px);
    align-items: start;
  }

  .page-contact .contact-demo {
    margin-top: 6px;
  }

  .page-contact .contact-filing__list {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    column-gap: clamp(32px, 5vw, 72px);
    border-top: 0;
  }

  .page-contact .contact-filing__list > div {
    border-top: 1px solid var(--ct-line);
  }
}

@media (hover: hover) and (min-width: 900px) {
  .page-contact .contact-channel__hint {
    max-height: 0;
    margin-top: 0;
    opacity: 0;
    overflow: hidden;
    transition: max-height var(--t-base), opacity var(--t-base), margin-top var(--t-base);
  }

  .page-contact .contact-channel:hover .contact-channel__hint,
  .page-contact .contact-channel:focus-within .contact-channel__hint {
    max-height: 90px;
    margin-top: 9px;
    opacity: 1;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-contact *,
  .page-contact *::before,
  .page-contact *::after {
    transition-duration: 0.01ms !important;
    animation: none !important;
  }
}
<<<END>>>