.page-contact {
  --contact-amber-glow: 0 0 18px rgba(255, 158, 0, 0.38);
  --contact-mint-glow: 0 0 18px rgba(0, 212, 170, 0.28);
  --contact-neon-soft: 0 0 20px rgba(138, 43, 226, 0.22);
  --contact-line-strong: 1px solid rgba(43, 32, 26, 0.18);
  --contact-line-soft: 1px solid rgba(245, 241, 232, 0.16);
  background: var(--c-cream);
  color: var(--c-ink);
  font-family: var(--font-body);
  line-height: 1.65;
  overflow-x: hidden;
}

.page-contact .container {
  max-width: var(--content-max);
  margin: 0 auto;
  padding: 0 1.25rem;
}

/* ===== Hero / 非对称联系首屏 ===== */
.contact-hero {
  position: relative;
  padding: 1.75rem 1rem 2rem;
  overflow: hidden;
}

.contact-hero::before {
  content: "";
  position: absolute;
  right: -110px;
  top: 30px;
  width: 280px;
  height: 280px;
  background: radial-gradient(circle, rgba(138, 43, 226, 0.14), transparent 68%);
  pointer-events: none;
}

.contact-hero::after {
  content: "";
  position: absolute;
  left: -60px;
  bottom: -20px;
  width: 220px;
  height: 90px;
  background: linear-gradient(115deg, rgba(0, 212, 170, 0.18), transparent 70%);
  transform: rotate(-8deg);
  pointer-events: none;
}

.contact-hero__inner {
  max-width: var(--content-max);
  margin: 0 auto;
  position: relative;
  z-index: 1;
}

.contact-hero__crumb {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-family: var(--font-data);
  font-size: 0.78rem;
  letter-spacing: 0.04em;
  color: var(--c-slate);
  margin-bottom: 1.5rem;
}

.contact-hero__crumb a {
  color: var(--c-slate);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: border-color 0.2s ease, color 0.2s ease;
}

.contact-hero__crumb a:hover {
  color: var(--c-neon);
  border-bottom-color: var(--c-neon);
}

.contact-hero__crumb-sep {
  color: rgba(53, 85, 112, 0.5);
}

.contact-hero__layout {
  display: grid;
  gap: 1.25rem;
}

.contact-hero__kicker {
  font-family: var(--font-data);
  font-size: 0.8rem;
  letter-spacing: 0.18em;
  color: var(--c-green);
  margin-bottom: 0.5rem;
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
}

.contact-hero__kicker::before {
  content: "";
  width: 26px;
  height: 2px;
  background: var(--c-neon);
  display: inline-block;
}

.contact-hero__title {
  font-family: var(--font-headline);
  font-weight: 700;
  font-size: clamp(2rem, 7.4vw, 3.8rem);
  line-height: 1.08;
  letter-spacing: -0.02em;
  color: var(--c-night);
  margin: 0 0 0.75rem;
  max-width: 11em;
}

.contact-hero__lead {
  font-size: 1rem;
  color: var(--c-slate);
  max-width: 30em;
  margin: 0;
}

.contact-hero__visual {
  margin: 0;
}

.contact-hero__visual img {
  width: 100%;
  height: auto;
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-soft);
  object-fit: cover;
  display: block;
}

.contact-hero__figcap {
  font-family: var(--font-data);
  font-size: 0.7rem;
  letter-spacing: 0.08em;
  color: var(--c-slate);
  margin-top: 0.5rem;
  text-align: right;
}

.contact-hero__quick {
  display: grid;
  gap: 0.85rem;
  margin-top: 1.5rem;
  border-top: var(--contact-line-strong);
  padding-top: 1.25rem;
}

.contact-hero__quick-item {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 0.4rem 0.75rem;
  text-decoration: none;
  color: var(--c-ink);
}

.contact-hero__quick-label {
  font-family: var(--font-data);
  font-size: 0.7rem;
  letter-spacing: 0.12em;
  color: var(--c-slate);
  text-transform: uppercase;
}

.contact-hero__quick-value {
  font-family: var(--font-data);
  font-size: 0.95rem;
  font-weight: 500;
}

.contact-hero__quick-item--phone .contact-hero__quick-value {
  color: #B45309;
  font-size: 1.15rem;
  font-weight: 600;
  transition: text-shadow 0.2s ease;
}

.contact-hero__quick-item--phone:hover .contact-hero__quick-value {
  text-shadow: 0 0 14px rgba(255, 158, 0, 0.55);
}

.contact-hero__subnav {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.5rem;
  margin-top: 1.5rem;
  font-size: 0.85rem;
}

.contact-hero__subnav a {
  color: var(--c-green);
  text-decoration: none;
  border-bottom: 1px solid rgba(45, 106, 79, 0.35);
  padding-bottom: 1px;
  transition: border-color 0.2s ease, color 0.2s ease;
}

.contact-hero__subnav a:hover {
  color: var(--c-neon);
  border-bottom-color: var(--c-neon);
}

.contact-hero__subnav-sep {
  color: rgba(53, 85, 112, 0.4);
  font-family: var(--font-data);
}

/* ===== 客服渠道 / 夜色蓝 ===== */
.channel-section {
  background: var(--c-night);
  color: var(--c-cream);
  padding: 3rem 0;
  position: relative;
  clip-path: polygon(0 3%, 100% 0, 100% 97%, 0 100%);
  margin-top: -2px;
}

.channel-head {
  display: flex;
  align-items: flex-start;
  gap: 0.75rem;
  margin-bottom: 2rem;
}

.channel-head__no,
.mail-head__no,
.filing-head__no {
  font-family: var(--font-headline);
  font-weight: 700;
  font-size: 1.6rem;
  line-height: 1;
  color: var(--c-neon);
  text-shadow: var(--contact-neon-soft);
  flex-shrink: 0;
}

.channel-head__title,
.mail-head__title,
.filing-head__title {
  font-family: var(--font-headline);
  font-weight: 700;
  font-size: 1.35rem;
  margin: 0;
  color: var(--c-cream);
  letter-spacing: -0.01em;
}

.channel-head__desc {
  margin: 0.25rem 0 0;
  font-size: 0.9rem;
  color: rgba(245, 241, 232, 0.66);
}

.channel-grid {
  display: grid;
  gap: 2rem;
}

.channel-phone {
  position: relative;
  background: var(--c-cream);
  border-radius: var(--radius-lg);
  padding: 1.6rem 1.4rem;
  overflow: hidden;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.28);
}

.channel-phone__label {
  font-family: var(--font-data);
  font-size: 0.72rem;
  letter-spacing: 0.16em;
  color: var(--c-slate);
  text-transform: uppercase;
}

.channel-phone__num {
  display: block;
  font-family: var(--font-headline);
  font-weight: 700;
  font-size: clamp(1.5rem, 5vw, 2.2rem);
  color: #B45309;
  text-decoration: none;
  margin: 0.45rem 0;
  letter-spacing: 0.02em;
  transition: text-shadow 0.2s ease, transform 0.2s ease;
}

.channel-phone__num:hover {
  text-shadow: 0 0 18px rgba(255, 158, 0, 0.6);
  transform: translateX(2px);
}

.channel-phone__meta {
  font-size: 0.88rem;
  color: var(--c-ink);
  margin: 0.2rem 0;
  font-family: var(--font-data);
  letter-spacing: 0.02em;
}

.channel-phone__glow {
  position: absolute;
  right: -34px;
  top: -34px;
  width: 100px;
  height: 100px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(255, 158, 0, 0.32), transparent 70%);
  pointer-events: none;
}

.channel-note {
  padding: 1rem 0;
}

.channel-note__main {
  font-family: var(--font-headline);
  font-weight: 500;
  font-size: 1.06rem;
  line-height: 1.5;
  color: var(--c-cream);
  margin: 0 0 0.75rem;
  max-width: 22em;
}

.channel-note__sub {
  font-size: 0.92rem;
  line-height: 1.7;
  color: rgba(245, 241, 232, 0.72);
  margin: 0;
  max-width: 26em;
}

/* ===== 邮件支持 / 奶白 ===== */
.mail-section {
  background: var(--c-cream);
  padding: 3.2rem 0;
}

.mail-head {
  display: flex;
  align-items: flex-start;
  gap: 0.75rem;
  margin-bottom: 2rem;
}

.mail-head__title {
  color: var(--c-night);
}

.mail-head__desc {
  margin: 0.25rem 0 0;
  font-size: 0.9rem;
  color: var(--c-slate);
}

.mail-grid {
  display: grid;
  gap: 1.25rem;
}

.mail-card {
  background: rgba(245, 241, 232, 0.85);
  border-left: 3px solid var(--c-green);
  padding: 1.5rem 1.25rem;
  transition: box-shadow 0.2s ease, transform 0.2s ease;
}

.mail-card:hover {
  box-shadow: var(--shadow-soft);
  transform: translateY(-2px);
}

.mail-card--brand {
  border-left-color: var(--c-neon);
}

.mail-card__role {
  font-family: var(--font-headline);
  font-weight: 600;
  font-size: 0.95rem;
  margin: 0 0 0.5rem;
  color: var(--c-green);
  letter-spacing: 0.04em;
}

.mail-card--brand .mail-card__role {
  color: var(--c-neon);
}

.mail-card__address {
  font-family: var(--font-data);
  font-size: 1.05rem;
  font-weight: 600;
  color: var(--c-ink);
  text-decoration: none;
  border-bottom: 2px solid rgba(45, 106, 79, 0.35);
  display: inline-block;
  margin-bottom: 0.5rem;
  word-break: break-all;
  transition: border-color 0.2s ease, color 0.2s ease, text-shadow 0.2s ease;
}

.mail-card--brand .mail-card__address {
  border-bottom-color: rgba(138, 43, 226, 0.35);
}

.mail-card__address:hover {
  border-bottom-color: var(--c-amber);
  color: #B45309;
  text-shadow: 0 0 12px rgba(255, 158, 0, 0.3);
}

.mail-card__desc {
  font-size: 0.92rem;
  color: var(--c-ink);
  margin: 0 0 0.5rem;
  line-height: 1.6;
}

.mail-card__note {
  font-size: 0.82rem;
  color: var(--c-slate);
  margin: 0;
  font-family: var(--font-data);
  letter-spacing: 0.01em;
}

.mail-note {
  margin-top: 1.5rem;
  padding: 0.9rem 1.1rem;
  background: rgba(45, 106, 79, 0.08);
  border-radius: var(--radius-sm);
  font-size: 0.88rem;
  color: var(--c-slate);
  border-left: 2px solid var(--c-mint);
}

/* ===== 响应承诺 / 草原绿 ===== */
.promise-section {
  background: var(--c-green);
  padding: 3.5rem 0;
  position: relative;
  overflow: hidden;
}

.promise-section::before {
  content: "";
  position: absolute;
  right: -70px;
  bottom: -90px;
  width: 240px;
  height: 240px;
  border: 2px solid rgba(0, 212, 170, 0.22);
  border-radius: 50%;
  pointer-events: none;
}

.promise-band {
  display: grid;
  gap: 2rem;
}

.promise-band__tag {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  font-family: var(--font-data);
  font-size: 0.72rem;
  letter-spacing: 0.14em;
  color: var(--c-mint);
  text-transform: uppercase;
}

.promise-band__tag::before {
  content: "◆";
  color: var(--c-amber);
  font-size: 0.6rem;
}

.promise-band__title {
  font-family: var(--font-headline);
  font-weight: 700;
  font-size: clamp(1.8rem, 5vw, 2.6rem);
  color: var(--c-cream);
  margin: 0.35rem 0 0.75rem;
  letter-spacing: -0.01em;
}

.promise-band__text {
  color: rgba(245, 241, 232, 0.88);
  font-size: 0.95rem;
  line-height: 1.75;
  margin: 0 0 1rem;
  max-width: 34em;
}

.promise-band__link {
  display: inline-block;
  color: var(--c-amber);
  font-family: var(--font-data);
  font-size: 0.85rem;
  text-decoration: none;
  border-bottom: 1px solid rgba(255, 158, 0, 0.5);
  padding-bottom: 2px;
  transition: color 0.2s ease, border-color 0.2s ease;
}

.promise-band__link:hover {
  color: var(--c-cream);
  border-color: var(--c-cream);
}

.promise-band__stats {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
}

.promise-stat {
  background: rgba(11, 31, 51, 0.28);
  border: var(--contact-line-soft);
  border-radius: var(--radius-md);
  padding: 1.2rem 1rem;
  text-align: center;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
}

.promise-stat__num {
  font-family: var(--font-headline);
  font-weight: 700;
  font-size: 2.2rem;
  line-height: 1;
  color: var(--c-amber);
  text-shadow: var(--contact-amber-glow);
}

.promise-stat__unit {
  font-family: var(--font-data);
  font-size: 0.75rem;
  color: var(--c-mint);
  margin-top: 0.2rem;
}

.promise-stat__label {
  font-family: var(--font-data);
  font-size: 0.68rem;
  letter-spacing: 0.1em;
  color: rgba(245, 241, 232, 0.6);
  margin-top: 0.35rem;
  text-transform: uppercase;
}

/* ===== 备案地址 / 档案区 ===== */
.filing-section {
  background: var(--c-cream);
  padding: 3rem 0 4rem;
}

.filing-grid {
  display: grid;
  gap: 2rem;
}

.filing-visual {
  margin: 0;
}

.filing-visual img {
  width: 100%;
  height: auto;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-soft);
  object-fit: cover;
  display: block;
  background: var(--c-night);
}

.filing-visual__cap {
  font-family: var(--font-data);
  font-size: 0.7rem;
  letter-spacing: 0.08em;
  color: var(--c-slate);
  margin-top: 0.5rem;
  text-align: right;
}

.filing-main {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
}

.filing-head {
  display: flex;
  align-items: flex-start;
  gap: 0.75rem;
  margin-bottom: 1.5rem;
}

.filing-head__title {
  color: var(--c-night);
}

.filing-head__desc {
  margin: 0.25rem 0 0;
  font-size: 0.9rem;
  color: var(--c-slate);
}

.filing-address-card {
  width: 100%;
  background: rgba(11, 31, 51, 0.04);
  border-left: 3px solid var(--c-neon);
  padding: 1.25rem 1.2rem;
  border-radius: 0 var(--radius-md) var(--radius-md) 0;
  margin-bottom: 1.25rem;
}

.filing-tag {
  display: inline-block;
  font-family: var(--font-data);
  font-size: 0.7rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--c-neon);
  background: rgba(138, 43, 226, 0.1);
  padding: 0.22rem 0.6rem;
  border-radius: var(--radius-sm);
  margin-bottom: 0.7rem;
}

.filing-address-card__line {
  font-family: var(--font-headline);
  font-weight: 500;
  font-size: 1.15rem;
  color: var(--c-night);
  margin: 0 0 0.4rem;
  line-height: 1.5;
}

.filing-address-card__icp {
  font-family: var(--font-data);
  font-size: 0.82rem;
  color: var(--c-slate);
  margin: 0;
}

.filing-expander {
  width: 100%;
  margin-bottom: 1rem;
}

.filing-expander__toggle {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.5rem;
  width: 100%;
  background: transparent;
  border: 1px solid rgba(43, 32, 26, 0.14);
  border-radius: var(--radius-sm);
  padding: 0.7rem 0.9rem;
  cursor: pointer;
  font-family: var(--font-data);
  font-size: 0.8rem;
  color: var(--c-green);
  text-align: left;
  transition: border-color 0.2s ease, background 0.2s ease;
}

.filing-expander__toggle:hover {
  border-color: var(--c-neon);
  background: rgba(138, 43, 226, 0.06);
}

.expander__icon {
  font-family: var(--font-headline);
  font-size: 1.2rem;
  line-height: 1;
  color: var(--c-neon);
  transition: transform 0.25s ease;
}

.expander[data-open] .expander__icon {
  transform: rotate(45deg);
}

.filing-expander__inner {
  border: 1px solid rgba(43, 32, 26, 0.1);
  border-top: 0;
  border-radius: 0 0 var(--radius-sm) var(--radius-sm);
  padding: 1rem;
  background: rgba(245, 241, 232, 0.6);
}

.filing-list {
  margin: 0;
  padding: 0;
  list-style: none;
}

.filing-row {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  padding: 0.4rem 0;
  border-bottom: 1px solid rgba(43, 32, 26, 0.07);
}

.filing-row:last-child {
  border-bottom: 0;
}

.filing-row__label {
  font-family: var(--font-data);
  font-size: 0.75rem;
  color: var(--c-slate);
  flex-shrink: 0;
}

.filing-row__value {
  font-size: 0.88rem;
  color: var(--c-ink);
  margin: 0;
  text-align: right;
}

.filing-main__note {
  font-size: 0.85rem;
  color: var(--c-slate);
  line-height: 1.6;
  margin: 0 0 1rem;
  max-width: 30em;
}

.filing-main__link {
  font-family: var(--font-data);
  font-size: 0.85rem;
  color: var(--c-green);
  text-decoration: none;
  border-bottom: 1px solid rgba(45, 106, 79, 0.4);
  padding-bottom: 2px;
  transition: color 0.2s ease, border-color 0.2s ease;
}

.filing-main__link:hover {
  color: var(--c-neon);
  border-bottom-color: var(--c-neon);
}

/* ===== 桌面网格 / 非对称布局 ===== */
@media (min-width: 900px) {
  .contact-hero {
    padding: 2.5rem 1rem 3rem;
  }

  .contact-hero__crumb {
    margin-bottom: 2rem;
  }

  .contact-hero__layout {
    grid-template-columns: 7fr 5fr;
    gap: 2rem;
    align-items: end;
  }

  .contact-hero__title {
    font-size: clamp(3rem, 6vw, 4.6rem);
  }

  .contact-hero__lead {
    font-size: 1.1rem;
  }

  .contact-hero__visual {
    margin: 0;
    position: relative;
  }

  .contact-hero__visual::before {
    content: "";
    position: absolute;
    left: -14px;
    bottom: -14px;
    width: 100%;
    height: 100%;
    border: 2px solid var(--c-green);
    border-radius: var(--radius-md);
    z-index: -1;
  }

  .contact-hero__quick {
    grid-template-columns: 1fr 1fr 1fr;
    margin-top: 2.2rem;
    padding-top: 1.4rem;
  }

  .contact-hero__subnav {
    justify-content: flex-end;
  }

  .channel-section {
    clip-path: polygon(0 2%, 100% 0, 100% 98%, 0 100%);
    padding: 4.5rem 0;
  }

  .channel-grid {
    grid-template-columns: 5fr 7fr;
    gap: 3rem;
    align-items: center;
  }

  .channel-phone {
    padding: 2rem;
    transform: translateX(-8px);
  }

  .channel-note {
    padding: 0;
  }

  .channel-note__main {
    font-size: 1.2rem;
  }

  .mail-section {
    padding: 4.5rem 0;
  }

  .mail-grid {
    grid-template-columns: 3fr 2fr;
    gap: 1.5rem;
  }

  .mail-card--brand {
    transform: translateY(18px);
  }

  .promise-section {
    padding: 4.5rem 0;
  }

  .promise-band {
    grid-template-columns: 3fr 2fr;
    gap: 3rem;
    align-items: center;
  }

  .promise-band__title {
    font-size: 2.8rem;
  }

  .promise-band__stats {
    grid-template-columns: 1fr 1fr;
    gap: 1.25rem;
  }

  .promise-stat__num {
    font-size: 3rem;
  }

  .filing-section {
    padding: 4.5rem 0 5.5rem;
  }

  .filing-grid {
    grid-template-columns: 4.5fr 7.5fr;
    gap: 3rem;
    align-items: start;
  }

  .filing-visual {
    position: sticky;
    top: 2rem;
  }

  .filing-main {
    padding-top: 0.5rem;
  }
}

@media (min-width: 1240px) {
  .page-contact .container {
    padding: 0;
  }
}