.page-contact {
  --contact-radius: 14px;
  background: var(--paper-panel);
  color: var(--ink-base);
  font-family: var(--font-sans);
}

/* ---------- 首屏：江景背景条 + 对角橙色切块 ---------- */
.page-contact .contact-hero {
  position: relative;
  isolation: isolate;
  overflow: hidden;
  background: var(--ink-base);
  padding: 54px 0 40px;
}

.page-contact .contact-hero-bg {
  position: absolute;
  inset: 0;
  z-index: 0;
}

.page-contact .contact-hero-bg img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: .34;
  filter: saturate(.55) contrast(1.06);
}

.page-contact .contact-hero-bg::after {
  content: "";
  position: absolute;
  inset: 0;
  background:
    linear-gradient(180deg, rgba(20, 22, 26, .58) 0%, rgba(20, 22, 26, .94) 74%),
    linear-gradient(92deg, rgba(20, 22, 26, .92) 0%, rgba(20, 22, 26, .18) 74%);
}

.page-contact .contact-hero::before {
  content: "";
  position: absolute;
  z-index: 1;
  top: -22%;
  right: -12%;
  width: 58%;
  height: 144%;
  background: linear-gradient(152deg, rgba(226, 87, 31, .58), rgba(122, 42, 12, 0) 78%);
  clip-path: polygon(40% 0, 100% 0, 100% 100%, 0 100%);
  pointer-events: none;
}

.page-contact .contact-hero-inner {
  position: relative;
  z-index: 2;
  max-width: 760px;
}

.page-contact .contact-hero .section-eyebrow {
  color: var(--lava-300);
}

.page-contact .contact-hero h1 {
  margin: 14px 0 0;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(30px, 7.4vw, 54px);
  line-height: 1.18;
  letter-spacing: -.012em;
  color: var(--paper-000);
}

.page-contact .contact-hero-lede {
  margin: 18px 0 0;
  max-width: 640px;
  font-size: 15.5px;
  line-height: 1.85;
  color: rgba(252, 250, 246, .82);
}

.page-contact .contact-hero-facts {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin: 26px 0 0;
  padding: 0;
  list-style: none;
}

.page-contact .contact-hero-facts li {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 8px 15px;
  border: 1px solid rgba(252, 250, 246, .18);
  border-radius: 999px;
  background: rgba(20, 22, 26, .6);
  font-family: var(--font-cond);
  font-size: 13px;
  letter-spacing: .05em;
  color: var(--paper-000);
}

.page-contact .contact-hero-facts .num {
  font-weight: 700;
  color: var(--lava-300);
}

/* ---------- 面包屑条 ---------- */
.page-contact .contact-crumb {
  background: var(--paper-panel);
  padding: 16px 0 0;
}

/* ---------- 主体两栏 ---------- */
.page-contact .contact-body {
  background: var(--paper-panel);
  padding: 18px 0 68px;
}

.page-contact .contact-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 22px;
  align-items: start;
}

.page-contact .contact-aside-inner,
.page-contact .contact-main {
  display: grid;
  gap: 22px;
  min-width: 0;
}

/* ---------- 联系卡片 ---------- */
.page-contact .contact-card {
  background: var(--paper-000);
  border: 1px solid var(--line-paper);
  border-left: 4px solid var(--lava-600);
  border-radius: var(--contact-radius);
  padding: 20px 20px 22px;
  box-shadow: var(--shadow-panel);
}

.page-contact .contact-card-title {
  margin: 0 0 6px;
  font-family: var(--font-display);
  font-size: 19px;
  font-weight: 700;
  line-height: 1.35;
  color: var(--ink-base);
}

.page-contact .contact-card-note {
  margin: 0 0 16px;
  font-size: 13px;
  line-height: 1.7;
  color: var(--graphite-700);
}

.page-contact .contact-line {
  display: grid;
  gap: 4px;
  padding: 12px 0;
  border-top: 1px dashed var(--line-paper);
  min-width: 0;
}

.page-contact .contact-line:first-of-type {
  border-top: 0;
  padding-top: 2px;
}

.page-contact .contact-line-label {
  font-family: var(--font-cond);
  font-size: 12px;
  letter-spacing: .12em;
  color: var(--lava-600);
}

.page-contact .contact-line-value {
  font-family: var(--font-mono);
  font-size: 13.5px;
  line-height: 1.65;
  color: var(--ink-base);
  overflow-wrap: anywhere;
}

.page-contact .contact-line-hint {
  font-size: 12.5px;
  line-height: 1.7;
  color: var(--graphite-700);
}

/* 深色节奏卡 */
.page-contact .contact-card--ink {
  background: var(--ink-base);
  border-color: rgba(252, 250, 246, .12);
  border-left-color: var(--amber-500);
}

.page-contact .contact-card--ink .contact-card-title {
  color: var(--paper-000);
}

.page-contact .contact-card--ink .contact-card-note {
  color: rgba(252, 250, 246, .72);
}

.page-contact .contact-card--ink .contact-line {
  border-top-color: rgba(252, 250, 246, .14);
}

.page-contact .contact-card--ink .contact-line-label {
  color: var(--amber-500);
}

.page-contact .contact-card--ink .contact-line-value {
  font-family: var(--font-sans);
  font-size: 14px;
  line-height: 1.7;
  color: var(--paper-000);
}

/* ---------- 右侧内容面板 ---------- */
.page-contact .contact-panel {
  background: var(--paper-000);
  border: 1px solid var(--line-paper);
  border-radius: var(--contact-radius);
  padding: 24px 20px;
  box-shadow: var(--shadow-panel);
  min-width: 0;
}

.page-contact .contact-panel--plain {
  background: transparent;
  border: 0;
  box-shadow: none;
  padding: 4px 0 0;
}

.page-contact .contact-panel .section-eyebrow {
  color: var(--lava-600);
}

.page-contact .contact-h2 {
  margin: 10px 0 0;
  font-family: var(--font-display);
  font-size: clamp(21px, 4.4vw, 28px);
  font-weight: 700;
  line-height: 1.32;
  letter-spacing: -.01em;
  color: var(--ink-base);
}

.page-contact .contact-lede {
  margin: 10px 0 0;
  font-size: 14.5px;
  line-height: 1.85;
  color: var(--graphite-700);
}

/* ---------- 咨询前准备 ---------- */
.page-contact .prepare-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 22px;
  margin-top: 20px;
}

.page-contact .prepare-list {
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 16px;
}

.page-contact .prepare-list li {
  display: grid;
  grid-template-columns: 30px minmax(0, 1fr);
  gap: 12px;
  align-items: start;
}

.page-contact .prepare-idx {
  display: block;
  padding: 4px 0;
  border-radius: 7px;
  background: var(--lava-600);
  font-family: var(--font-mono);
  font-size: 12.5px;
  font-weight: 700;
  text-align: center;
  color: var(--paper-000);
}

.page-contact .prepare-term {
  display: block;
  margin-bottom: 3px;
  font-size: 15px;
  font-weight: 700;
  color: var(--ink-base);
}

.page-contact .prepare-desc {
  margin: 0;
  font-size: 14px;
  line-height: 1.78;
  color: var(--graphite-700);
}

.page-contact .prepare-media {
  position: relative;
  margin: 0;
  border-radius: var(--contact-radius);
  border: 1px solid var(--line-paper);
  overflow: hidden;
  background: var(--graphite-700);
}

.page-contact .prepare-media img {
  display: block;
  width: 100%;
  height: auto;
  object-fit: cover;
}

.page-contact .prepare-media figcaption {
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  padding: 26px 14px 11px;
  font-size: 12.5px;
  line-height: 1.6;
  color: var(--paper-000);
  background: linear-gradient(0deg, rgba(20, 22, 26, .92), rgba(20, 22, 26, 0));
}

/* ---------- 折叠索引 ---------- */
.page-contact .accordion {
  margin-top: 18px;
  border-top: 1px solid var(--line-paper);
}

.page-contact .acc-item {
  border-bottom: 1px solid var(--line-paper);
}

.page-contact .acc-heading {
  margin: 0;
  font-size: inherit;
  font-weight: inherit;
}

.page-contact .acc-trigger {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  width: 100%;
  padding: 16px 2px;
  background: none;
  border: 0;
  font-family: var(--font-sans);
  font-size: 15.5px;
  font-weight: 700;
  line-height: 1.5;
  text-align: left;
  color: var(--ink-base);
  cursor: pointer;
  transition: color .2s var(--ease);
}

.page-contact .acc-trigger:hover,
.page-contact .acc-trigger:focus-visible {
  color: var(--lava-600);
}

.page-contact .acc-icon {
  position: relative;
  flex: 0 0 auto;
  width: 16px;
  height: 16px;
}

.page-contact .acc-icon::before,
.page-contact .acc-icon::after {
  content: "";
  position: absolute;
  background: var(--lava-600);
  border-radius: 1px;
  transition: transform .2s var(--ease);
}

.page-contact .acc-icon::before {
  top: 7px;
  left: 0;
  width: 16px;
  height: 2px;
}

.page-contact .acc-icon::after {
  top: 0;
  left: 7px;
  width: 2px;
  height: 16px;
}

.page-contact .acc-item[data-open] .acc-trigger {
  color: var(--lava-600);
}

.page-contact .acc-item[data-open] .acc-icon::after {
  transform: scaleY(0);
}

.page-contact .acc-body {
  padding: 0 2px 18px;
}

.page-contact .acc-content p {
  margin: 0 0 10px;
  font-size: 14px;
  line-height: 1.82;
  color: var(--graphite-700);
}

.page-contact .acc-content p:last-child {
  margin-bottom: 0;
}

/* ---------- 深色合作面板 ---------- */
.page-contact .contact-panel--ink {
  background: var(--ink-base);
  border-color: rgba(252, 250, 246, .14);
}

.page-contact .contact-panel--ink .section-eyebrow {
  color: var(--lava-300);
}

.page-contact .contact-panel--ink .contact-h2 {
  color: var(--paper-000);
}

.page-contact .contact-panel--ink .contact-lede {
  color: rgba(252, 250, 246, .76);
}

.page-contact .coop-list {
  margin: 20px 0 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 0;
  border-top: 1px solid rgba(252, 250, 246, .12);
}

.page-contact .coop-list li {
  position: relative;
  padding: 13px 0 13px 22px;
  border-bottom: 1px solid rgba(252, 250, 246, .12);
  font-size: 14.5px;
  line-height: 1.7;
  color: var(--paper-000);
}

.page-contact .coop-list li::before {
  content: "";
  position: absolute;
  left: 2px;
  top: 20px;
  width: 9px;
  height: 9px;
  border-radius: 2px;
  background: var(--turf-500);
}

.page-contact .coop-list li:nth-child(even)::before {
  border-radius: 50%;
  background: var(--volt-400);
}

.page-contact .coop-note {
  margin: 18px 0 0;
  font-size: 13px;
  line-height: 1.78;
  color: rgba(252, 250, 246, .68);
}

/* ---------- 相关入口 ---------- */
.page-contact .contact-links {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 16px;
}

.page-contact .contact-links a {
  display: inline-flex;
  align-items: center;
  padding: 9px 16px;
  border: 1px solid var(--line-paper);
  border-radius: 999px;
  background: var(--paper-000);
  font-size: 14px;
  line-height: 1.4;
  color: var(--ink-base);
  text-decoration: none;
  transition: border-color .2s var(--ease), color .2s var(--ease);
}

.page-contact .contact-links a:hover,
.page-contact .contact-links a:focus-visible {
  border-color: var(--lava-600);
  color: var(--lava-600);
}

/* ---------- 响应式 ---------- */
@media (min-width: 640px) {
  .page-contact .contact-hero {
    padding: 70px 0 52px;
  }

  .page-contact .contact-hero-lede {
    font-size: 16px;
  }

  .page-contact .contact-card {
    padding: 24px 24px 26px;
  }

  .page-contact .contact-panel {
    padding: 28px 26px;
  }

  .page-contact .contact-layout,
  .page-contact .contact-aside-inner,
  .page-contact .contact-main {
    gap: 24px;
  }
}

@media (min-width: 760px) {
  .page-contact .prepare-grid {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
    align-items: start;
  }
}

@media (min-width: 960px) {
  .page-contact .contact-hero {
    padding: 96px 0 68px;
  }

  .page-contact .contact-body {
    padding: 26px 0 96px;
  }

  .page-contact .contact-layout {
    grid-template-columns: minmax(0, 348px) minmax(0, 1fr);
    gap: 32px;
  }

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

  .page-contact .contact-hero::before {
    width: 46%;
    right: -6%;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-contact .acc-icon::before,
  .page-contact .acc-icon::after,
  .page-contact .acc-trigger,
  .page-contact .contact-links a {
    transition: none;
  }
}