.page-contact {
  --contact-line: rgba(0, 229, 255, 0.12);
  --contact-gold-line: rgba(255, 196, 0, 0.2);
  --contact-card-bg: #151D35;
  background: var(--deep-space-blue);
  color: var(--silver-mist);
  overflow-x: hidden;
}

.page-contact img {
  max-width: 100%;
  height: auto;
}

.page-contact .breadcrumb {
  margin: 0 0 2.5rem;
  padding: 0;
}

.page-contact .breadcrumb__item::before {
  content: "/";
  margin: 0 0.6em;
  color: var(--metallic-gray);
}

.page-contact .breadcrumb__link {
  color: var(--electric-blue);
  text-decoration: none;
  font-family: var(--font-mono);
  font-size: 0.85rem;
  letter-spacing: 0.04em;
}

.page-contact .breadcrumb__item {
  color: var(--metallic-gray);
  font-family: var(--font-mono);
  font-size: 0.85rem;
  letter-spacing: 0.04em;
}

/* ===== Hero ===== */
.contact-hero {
  position: relative;
  padding: clamp(2rem, 5vw, 3.5rem) 0 clamp(3rem, 6vw, 5rem);
  overflow: hidden;
  background:
    radial-gradient(900px 420px at 88% -8%, rgba(26, 16, 64, 0.95), transparent 62%),
    linear-gradient(180deg, rgba(11, 16, 38, 0.6), rgba(11, 16, 38, 1));
}

.contact-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background-image:
    linear-gradient(rgba(255, 196, 0, 0.06) 1px, transparent 1px),
    linear-gradient(90deg, rgba(0, 229, 255, 0.05) 1px, transparent 1px);
  background-size: 52px 52px;
  mask-image: linear-gradient(180deg, rgba(0, 0, 0, 0.9), transparent 78%);
  -webkit-mask-image: linear-gradient(180deg, rgba(0, 0, 0, 0.9), transparent 78%);
}

.contact-hero::after {
  content: "";
  position: absolute;
  top: 0;
  left: -10%;
  width: 55%;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--starlight-gold), transparent);
  transform: rotate(-8deg);
  opacity: 0.55;
  pointer-events: none;
}

.contact-hero__inner {
  position: relative;
  z-index: 1;
}

.contact-hero__grid {
  display: grid;
  gap: 2.2rem;
  align-items: center;
}

.contact-hero__label {
  display: inline-flex;
  align-items: center;
  gap: 0.8rem;
  margin: 0;
  font-family: var(--font-mono);
  font-size: 0.82rem;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--electric-blue);
}

.contact-hero__label::before {
  content: "";
  width: 34px;
  height: 2px;
  background: var(--starlight-gold);
  flex: none;
}

.contact-hero__title {
  margin: 0.35em 0 0;
  font-family: var(--font-heading);
  font-size: clamp(2.8rem, 8vw, 5.4rem);
  font-weight: 900;
  line-height: 1.06;
  letter-spacing: -0.015em;
  color: #ffffff;
  transform: skew(-2deg);
  transform-origin: left center;
  text-shadow: 0 0 36px rgba(255, 196, 0, 0.24);
}

.contact-hero__slogan {
  margin: 0.45em 0 0;
  font-family: var(--font-mono);
  font-size: clamp(0.95rem, 2vw, 1.35rem);
  font-weight: 400;
  letter-spacing: 0.3em;
  color: var(--electric-blue);
}

.contact-hero__desc {
  max-width: 36em;
  margin: 1.4rem 0 0;
  font-size: 1rem;
  line-height: 1.8;
  color: var(--silver-mist);
}

.contact-hero__visual {
  position: relative;
  background: var(--panel-dark);
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 28px), calc(100% - 28px) 100%, 0 100%);
}

.contact-hero__visual img {
  display: block;
  width: 100%;
  height: auto;
}

.contact-hero__marker {
  position: absolute;
  left: 0;
  bottom: 1.6rem;
  display: inline-block;
  padding: 0.5rem 1.1rem;
  background: var(--starlight-gold);
  color: var(--deep-space-blue);
  font-family: var(--font-mono);
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  transform: skew(-2deg);
}

/* ===== 联系渠道 / 合作意向 ===== */
.contact-directory {
  position: relative;
  padding: clamp(3rem, 6vw, 5.5rem) 0 clamp(3.5rem, 7vw, 6rem);
}

.contact-directory::before {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background:
    radial-gradient(620px 360px at 5% 0%, rgba(0, 229, 255, 0.05), transparent 60%),
    radial-gradient(500px 300px at 100% 100%, rgba(255, 196, 0, 0.05), transparent 55%);
}

.contact-directory__grid {
  position: relative;
  z-index: 1;
  display: grid;
  gap: 2.6rem;
}

.contact-dir-head {
  margin-bottom: 1.9rem;
}

.contact-dir-head__title {
  margin: 0.3em 0 0;
  font-family: var(--font-heading);
  font-size: clamp(2rem, 5vw, 3.4rem);
  font-weight: 900;
  line-height: 1.12;
  color: #ffffff;
  transform: skew(-2deg);
  transform-origin: left center;
}

.contact-dir-head__sub {
  margin: 0.8rem 0 0;
  font-size: 0.95rem;
  line-height: 1.72;
  color: var(--metallic-gray);
  max-width: 42em;
}

.contact-dir-head--main {
  margin-top: 0;
}

.contact-dir-list {
  display: grid;
  gap: 1.1rem;
}

.contact-card {
  position: relative;
  padding: 1.5rem 1.6rem 1.6rem;
  background: var(--contact-card-bg);
  border: 1px solid rgba(138, 148, 168, 0.16);
  clip-path: polygon(0 0, calc(100% - 18px) 0, 100% 18px, 100% 100%, 14px 100%, 0 calc(100% - 14px));
}

.contact-card--mail {
  border-left: 3px solid var(--starlight-gold);
}

.contact-card--phone {
  border-left: 3px solid var(--electric-blue);
}

.contact-card--address {
  border-left: 3px solid var(--positive-green);
}

.contact-card__code {
  display: block;
  font-family: var(--font-mono);
  font-size: 0.74rem;
  letter-spacing: 0.16em;
  color: var(--metallic-gray);
}

.contact-card__icon {
  position: absolute;
  top: 1.2rem;
  right: 1.2rem;
  width: 30px;
  height: 30px;
  color: var(--electric-blue);
  opacity: 0.9;
}

.contact-card--mail .contact-card__icon {
  color: var(--starlight-gold);
}

.contact-card--address .contact-card__icon {
  color: var(--positive-green);
}

.contact-card__title {
  display: flex;
  align-items: center;
  gap: 0.55rem;
  margin: 0.85rem 0 0;
  font-family: var(--font-heading);
  font-size: 1.02rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  color: #ffffff;
}

.contact-card__title::before {
  content: "";
  width: 16px;
  height: 2px;
  background: var(--starlight-gold);
  flex: none;
}

.contact-card__value {
  margin: 0.95rem 0 0;
  font-family: var(--font-mono);
  font-size: clamp(1.08rem, 2.6vw, 1.8rem);
  font-weight: 800;
  line-height: 1.3;
  color: var(--starlight-gold);
  word-break: break-word;
  padding-right: 2.4rem;
}

.contact-card--phone .contact-card__value {
  color: var(--electric-blue);
}

.contact-card--address .contact-card__value {
  color: #ffffff;
  font-size: clamp(1rem, 2.2vw, 1.45rem);
}

.contact-card__note {
  margin: 0.85rem 0 0;
  font-size: 0.92rem;
  line-height: 1.75;
  color: var(--metallic-gray);
}

.contact-card[data-reveal] {
  transition: transform 0.3s ease, opacity 0.3s ease, border-color 0.3s ease;
}

@media (hover: hover) {
  .contact-card:hover {
    transform: translateY(-4px);
    border-color: rgba(255, 196, 0, 0.45);
  }
}

/* ===== 合作意向区域 ===== */
.contact-coop-grid {
  display: grid;
  gap: 1.2rem;
}

.coop-card {
  position: relative;
  display: flex;
  gap: 1.2rem;
  padding: 1.5rem;
  background: var(--panel-dark);
  border: 1px solid rgba(0, 229, 255, 0.14);
  clip-path: polygon(0 0, calc(100% - 16px) 0, 100% 16px, 100% 100%, 0 100%);
}

.coop-card__num {
  flex: none;
  min-width: 2.6rem;
  font-family: var(--font-mono);
  font-size: 2.1rem;
  font-weight: 900;
  line-height: 1;
  color: rgba(255, 196, 0, 0.4);
  text-shadow: 0 0 14px rgba(255, 196, 0, 0.12);
}

.coop-card__body {
  min-width: 0;
}

.coop-card__title {
  margin: 0 0 0.5rem;
  font-family: var(--font-heading);
  font-size: 1.12rem;
  font-weight: 700;
  letter-spacing: 0.02em;
  color: #ffffff;
}

.coop-card__desc {
  margin: 0;
  font-size: 0.93rem;
  line-height: 1.75;
  color: var(--metallic-gray);
}

.coop-card__link {
  display: inline-block;
  margin-top: 0.85rem;
  font-family: var(--font-mono);
  font-size: 0.85rem;
  letter-spacing: 0.04em;
  color: var(--electric-blue);
  text-decoration: none;
  border-bottom: 1px solid rgba(0, 229, 255, 0.35);
  transition: border-color 0.3s ease, color 0.3s ease;
}

.coop-card__link span {
  display: inline-block;
  transition: transform 0.3s ease;
}

.coop-card__link:hover {
  color: var(--starlight-gold);
  border-color: rgba(255, 196, 0, 0.45);
}

.coop-card__link:hover span {
  transform: translateX(4px);
}

.coop-card[data-reveal] {
  transition: transform 0.3s ease, opacity 0.3s ease, border-color 0.3s ease;
}

@media (hover: hover) {
  .coop-card:hover {
    transform: translateY(-4px);
    border-color: rgba(0, 229, 255, 0.4);
  }
}

.coop-figure {
  margin: 2.2rem 0 0;
  position: relative;
  background: var(--panel-dark);
  overflow: hidden;
}

.coop-figure img {
  display: block;
  width: 100%;
  height: auto;
}

.coop-figure figcaption {
  padding: 0.8rem 1.1rem;
  background: rgba(21, 29, 53, 0.92);
  border-left: 3px solid var(--electric-blue);
  font-family: var(--font-mono);
  font-size: 0.82rem;
  line-height: 1.6;
  color: var(--electric-blue);
}

.contact-coop-tip {
  margin: 1.6rem 0 0;
  padding: 1.15rem 1.35rem;
  background: rgba(255, 196, 0, 0.07);
  border-left: 2px solid var(--starlight-gold);
  font-size: 0.94rem;
  line-height: 1.75;
  color: var(--silver-mist);
}

/* ===== 回复承诺 ===== */
.contact-pledge {
  position: relative;
  padding: clamp(3rem, 6vw, 5rem) 0;
  overflow: hidden;
  background:
    linear-gradient(120deg, rgba(26, 16, 64, 0.95), rgba(11, 16, 38, 0.9)),
    radial-gradient(700px 320px at 80% 20%, rgba(255, 196, 0, 0.12), transparent 60%),
    var(--nebula-purple);
  border-top: 1px solid rgba(255, 196, 0, 0.18);
  border-bottom: 1px solid rgba(0, 229, 255, 0.14);
}

.contact-pledge::before {
  content: "";
  position: absolute;
  top: -40%;
  right: -12%;
  width: 500px;
  height: 500px;
  border: 1px solid rgba(255, 196, 0, 0.16);
  border-radius: 50%;
  transform: rotate(18deg) skew(-8deg);
  pointer-events: none;
}

.contact-pledge::after {
  content: "";
  position: absolute;
  bottom: -55%;
  left: -10%;
  width: 420px;
  height: 420px;
  border: 1px solid rgba(0, 229, 255, 0.14);
  border-radius: 50%;
  transform: rotate(-14deg) skew(8deg);
  pointer-events: none;
}

.contact-pledge__inner {
  position: relative;
  z-index: 1;
}

.contact-pledge__title {
  margin: 0.3em 0 0;
  font-family: var(--font-heading);
  font-size: clamp(1.9rem, 4.4vw, 3.1rem);
  font-weight: 900;
  color: #ffffff;
  transform: skew(-2deg);
  transform-origin: left center;
}

.contact-pledge__content {
  display: flex;
  flex-direction: column;
  gap: 1.8rem;
  margin-top: 2rem;
}

.contact-pledge__num {
  position: relative;
  display: inline-flex;
  align-items: baseline;
  gap: 0.25em;
  font-family: var(--font-heading);
  font-size: clamp(4.2rem, 12vw, 7rem);
  font-weight: 900;
  line-height: 0.95;
  color: var(--starlight-gold);
  text-shadow: 0 0 38px rgba(255, 196, 0, 0.3);
}

.contact-pledge__num::after {
  content: "";
  position: absolute;
  inset: -0.4em -0.7em -0.7em -0.8em;
  border: 1px solid rgba(255, 196, 0, 0.3);
  transform: rotate(2.5deg) skew(-7deg);
  pointer-events: none;
}

.contact-pledge__num em {
  font-style: normal;
  font-family: var(--font-mono);
  font-size: 1rem;
  font-weight: 400;
  letter-spacing: 0.28em;
  color: var(--electric-blue);
}

.contact-pledge__text {
  max-width: 52em;
}

.contact-pledge__text p {
  margin: 0;
  font-size: 1rem;
  line-height: 1.85;
  color: var(--silver-mist);
}

.contact-pledge__text p + p {
  margin-top: 0.9rem;
}

.contact-pledge__text strong {
  color: var(--electric-blue);
  font-weight: 700;
}

.contact-pledge__links {
  display: flex;
  flex-wrap: wrap;
  gap: 0.9rem;
  margin-top: 2.2rem;
}

.page-contact .btn--ghost {
  display: inline-block;
  padding: 0.85rem 1.4rem;
  border: 1px solid rgba(0, 229, 255, 0.45);
  color: var(--electric-blue);
  background: transparent;
  font-family: var(--font-body);
  font-size: 0.95rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  text-decoration: none;
  clip-path: polygon(0 0, calc(100% - 14px) 0, 100% 14px, 100% 100%, 14px 100%, 0 calc(100% - 14px));
  transition: background 0.3s ease, border-color 0.3s ease, transform 0.3s ease, opacity 0.3s ease;
}

.page-contact .btn--ghost:hover {
  background: rgba(0, 229, 255, 0.08);
  border-color: var(--electric-blue);
  transform: translateY(-2px);
}

/* ===== 平板及以上 ===== */
@media (min-width: 760px) {
  .contact-hero__grid {
    grid-template-columns: minmax(0, 1fr) minmax(280px, 0.85fr);
    gap: 2.8rem;
    align-items: center;
  }

  .contact-pledge__content {
    flex-direction: row;
    align-items: center;
    gap: 3rem;
  }

  .contact-pledge__num {
    font-size: clamp(5rem, 10vw, 7.5rem);
  }

  .contact-coop-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

/* ===== 桌面端 ===== */
@media (min-width: 1024px) {
  .contact-directory__grid {
    grid-template-columns: minmax(0, 0.92fr) minmax(0, 1.08fr);
    gap: clamp(2.4rem, 5vw, 5rem);
    align-items: start;
  }

  .contact-directory__side {
    position: sticky;
    top: 96px;
  }

  .contact-dir-head--main {
    margin-top: 0;
  }

  .contact-hero__inner {
    display: flex;
    flex-direction: column;
  }

  .contact-hero__grid {
    grid-template-columns: minmax(0, 1.05fr) minmax(320px, 0.95fr);
    gap: clamp(2rem, 5vw, 5rem);
  }

  .contact-hero__title {
    font-size: clamp(3.4rem, 6vw, 5.4rem);
  }
}

/* ===== 窄屏防溢出 ===== */
@media (max-width: 380px) {
  .contact-card {
    padding: 1.2rem 1rem 1.3rem;
  }

  .contact-card__icon {
    display: none;
  }

  .contact-card__value {
    padding-right: 0;
    font-size: 1rem;
  }

  .coop-card {
    flex-direction: column;
    gap: 0.6rem;
  }

  .coop-card__num {
    min-width: 0;
  }
}