.page-contact {
  --contact-hairline: rgba(85, 98, 122, 0.45);
  --contact-cyan-line: rgba(56, 225, 198, 0.32);
  --contact-ink-soft: rgba(11, 18, 32, 0.7);
}

/* ---------- 通用节奏 ---------- */
.page-contact .section {
  padding-block: clamp(44px, 6.5vw, 88px);
}

.page-contact .section--tight {
  padding-block: clamp(36px, 5vw, 64px);
}

.page-contact .section-lead {
  max-width: 60ch;
  margin: 0 0 clamp(24px, 3.5vw, 38px);
  font-size: clamp(15px, 1.6vw, 18px);
  line-height: 1.8;
  color: var(--dim);
}

.page-contact .section--mist .section-lead {
  color: var(--contact-ink-soft);
}

/* ---------- 章节色带（页面自持） ---------- */
.page-contact .contact-band {
  display: flex;
  align-items: center;
  gap: clamp(12px, 2vw, 20px);
  min-height: 64px;
  padding: 12px 0;
  border-top: 3px solid var(--contact-cyan-line);
  border-bottom: 1px solid var(--contact-hairline);
  margin-bottom: clamp(24px, 3.6vw, 42px);
}

.page-contact .contact-band__index {
  flex: none;
  font-family: var(--font-data);
  font-size: 12px;
  letter-spacing: 0.24em;
  color: var(--orange);
}

.page-contact .contact-band__title {
  margin: 0;
  font-family: var(--font-head);
  font-weight: 900;
  font-size: clamp(23px, 3.3vw, 40px);
  line-height: 1.08;
  letter-spacing: -0.01em;
  color: var(--mist);
}

.page-contact .contact-band--light {
  border-top-color: var(--teal);
  border-bottom-color: rgba(11, 18, 32, 0.18);
}

.page-contact .contact-band--light .contact-band__title {
  color: var(--night);
}

.page-contact .contact-band--light .contact-band__index {
  color: #C2521A;
}

/* ---------- 首屏 ---------- */
.page-contact .contact-hero {
  position: relative;
  isolation: isolate;
  overflow: hidden;
  padding-block: clamp(28px, 4vw, 52px) clamp(48px, 7vw, 92px);
}

.page-contact .contact-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: -2;
  pointer-events: none;
  background:
    linear-gradient(118deg, rgba(18, 59, 46, 0.94) 0%, rgba(18, 59, 46, 0) 62%),
    radial-gradient(120% 90% at 88% 8%, rgba(56, 225, 198, 0.16) 0%, rgba(56, 225, 198, 0) 60%);
}

.page-contact .contact-hero::after {
  content: "";
  position: absolute;
  top: 0;
  right: 0;
  width: min(46%, 640px);
  height: 100%;
  z-index: -1;
  pointer-events: none;
  background: linear-gradient(180deg, rgba(255, 122, 47, 0.18) 0%, rgba(255, 122, 47, 0) 72%);
  clip-path: polygon(24% 0, 100% 0, 100% 100%, 0 100%);
}

.page-contact .contact-hero .breadcrumbs {
  margin-bottom: clamp(18px, 3vw, 34px);
}

.page-contact .contact-hero__copy {
  align-self: center;
}

.page-contact .contact-hero h1 {
  margin: 0 0 clamp(14px, 2vw, 20px);
  font-family: var(--font-head);
  font-weight: 900;
  font-size: clamp(31px, 5.6vw, 60px);
  line-height: 1.04;
  letter-spacing: -0.02em;
  color: var(--mist);
}

.page-contact .contact-hero__lead {
  max-width: 46ch;
  margin: 0;
  font-size: clamp(15px, 1.7vw, 19px);
  line-height: 1.78;
  color: var(--dim);
}

.page-contact .contact-hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: clamp(20px, 3vw, 30px);
}

.page-contact .contact-hero__media {
  margin: 0;
  align-self: center;
}

.page-contact .contact-hero__media .media-frame {
  display: block;
  border: 3px solid rgba(56, 225, 198, 0.4);
  border-radius: var(--radius);
  box-shadow: var(--shadow-hard);
  overflow: hidden;
}

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

@media (min-width: 900px) {
  .page-contact .contact-hero__media .media-frame {
    clip-path: polygon(8% 0, 100% 0, 100% 100%, 0 100%);
  }
}

/* ---------- 订阅卡片带 ---------- */
.page-contact .plan-rail {
  display: grid;
  grid-auto-flow: column;
  grid-auto-columns: minmax(250px, 76%);
  gap: clamp(16px, 2.4vw, 24px);
  margin: 0;
  padding: 6px 6px 22px;
  list-style: none;
  overflow-x: auto;
  overscroll-behavior-inline: contain;
  scroll-snap-type: x mandatory;
  scrollbar-color: var(--teal) rgba(85, 98, 122, 0.28);
  scrollbar-width: thin;
}

.page-contact .plan-rail::-webkit-scrollbar {
  height: 8px;
}

.page-contact .plan-rail::-webkit-scrollbar-track {
  background: rgba(85, 98, 122, 0.28);
  border-radius: 999px;
}

.page-contact .plan-rail::-webkit-scrollbar-thumb {
  background: var(--teal);
  border-radius: 999px;
}

.page-contact .plan-rail > li {
  scroll-snap-align: start;
  display: flex;
}

.page-contact .plan-card {
  display: flex;
  flex-direction: column;
  gap: 12px;
  width: 100%;
  padding: 24px 22px 20px;
  background: var(--panel);
  border: 2px solid var(--contact-cyan-line);
  border-top: 6px solid var(--cyan);
  border-radius: var(--radius);
  box-shadow: var(--shadow-hard);
  transition: transform 180ms ease, border-top-color 180ms ease;
}

.page-contact .plan-card:nth-child(1) { border-top-color: var(--cyan); }
.page-contact .plan-rail > li:nth-child(2) .plan-card { border-top-color: var(--orange); }
.page-contact .plan-rail > li:nth-child(3) .plan-card { border-top-color: var(--amber); }
.page-contact .plan-rail > li:nth-child(4) .plan-card { border-top-color: var(--teal); }

.page-contact .plan-card h3 {
  margin: 0;
  font-family: var(--font-head);
  font-weight: 900;
  font-size: 25px;
  line-height: 1.14;
  letter-spacing: -0.01em;
  color: var(--mist);
}

.page-contact .plan-card__line {
  margin: 0;
  font-size: 15px;
  line-height: 1.72;
  color: var(--dim);
}

.page-contact .plan-card__more {
  margin-top: auto;
  padding-top: 12px;
  border-top: 1px dashed var(--contact-hairline);
}

.page-contact .plan-card__more > summary {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 6px 0;
  list-style: none;
  cursor: pointer;
  font-family: var(--font-head);
  font-weight: 700;
  font-size: 15px;
  letter-spacing: 0.08em;
  color: var(--orange);
}

.page-contact .plan-card__more > summary::-webkit-details-marker {
  display: none;
}

.page-contact .plan-card__more > summary::before {
  content: "+";
  font-family: var(--font-data);
  font-size: 17px;
  line-height: 1;
  color: var(--cyan);
}

.page-contact .plan-card__more[open] > summary::before {
  content: "–";
}

.page-contact .plan-card__more > p {
  margin: 8px 0 2px;
  font-size: 14px;
  line-height: 1.78;
  color: var(--dim);
}

.page-contact .plan-card__more > summary:focus-visible {
  outline: 2px solid var(--orange);
  outline-offset: 3px;
}

.page-contact .ask-strip {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 14px 24px;
  margin-top: clamp(22px, 3.5vw, 40px);
  padding: clamp(18px, 3vw, 26px);
  background: rgba(11, 18, 32, 0.55);
  border: 2px solid rgba(56, 225, 198, 0.26);
  border-radius: var(--radius);
}

.page-contact .ask-strip__label {
  margin: 0;
  font-family: var(--font-head);
  font-weight: 700;
  font-size: 17px;
  letter-spacing: 0.02em;
  color: var(--mist);
}

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

.page-contact .ask-strip__list li {
  padding: 6px 14px;
  font-family: var(--font-data);
  font-size: 13px;
  letter-spacing: 0.04em;
  color: var(--cyan);
  border: 1px solid rgba(56, 225, 198, 0.45);
  border-radius: 999px;
}

/* ---------- 开通流程 ---------- */
.page-contact .flow-grid {
  display: grid;
  gap: clamp(24px, 4vw, 44px);
  align-items: start;
}

.page-contact .flow-steps {
  display: grid;
  gap: 14px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-contact .flow-step {
  padding: 20px 22px;
  background: #FFFFFF;
  border: 2px solid rgba(11, 18, 32, 0.12);
  border-left: 6px solid var(--teal);
  border-radius: var(--radius);
  transition: transform 180ms ease, border-left-color 180ms ease, box-shadow 180ms ease;
}

.page-contact .flow-step__num {
  margin: 0 0 6px;
  font-family: var(--font-data);
  font-size: 12px;
  letter-spacing: 0.2em;
  color: var(--teal);
}

.page-contact .flow-step h3 {
  margin: 0 0 8px;
  font-family: var(--font-head);
  font-weight: 900;
  font-size: 22px;
  line-height: 1.2;
  color: var(--night);
}

.page-contact .flow-step p {
  margin: 0;
  font-size: 15px;
  line-height: 1.78;
  color: var(--contact-ink-soft);
}

.page-contact .flow-media {
  margin: 0;
}

.page-contact .flow-media .media-frame {
  display: block;
  border: 3px solid rgba(11, 18, 32, 0.14);
  border-radius: var(--radius);
  overflow: hidden;
}

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

.page-contact .flow-note {
  margin: clamp(20px, 3vw, 30px) 0 0;
  padding-left: 16px;
  font-size: 14px;
  line-height: 1.8;
  color: var(--contact-ink-soft);
  border-left: 3px solid var(--orange);
}

/* ---------- 联系渠道 ---------- */
.page-contact .channel-list {
  display: grid;
  gap: clamp(16px, 2.6vw, 28px);
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-contact .channel {
  display: flex;
  flex-direction: column;
  gap: 10px;
  padding: clamp(20px, 3vw, 30px);
  background: var(--panel);
  border: 2px solid var(--contact-cyan-line);
  border-left: 6px solid var(--cyan);
  border-radius: var(--radius);
  box-shadow: var(--shadow-hard);
}

.page-contact .channel__label {
  margin: 0;
  font-family: var(--font-head);
  font-weight: 700;
  font-size: 14px;
  letter-spacing: 0.18em;
  color: var(--dim);
}

.page-contact .channel__value {
  margin: 0;
  font-family: var(--font-data);
  font-size: clamp(16px, 1.85vw, 21px);
  line-height: 1.45;
  color: var(--cyan);
  word-break: break-word;
  overflow-wrap: anywhere;
}

.page-contact .channel__value--plain {
  font-family: var(--font-body);
  font-weight: 700;
  font-size: clamp(16px, 1.7vw, 19px);
  line-height: 1.65;
  color: var(--mist);
}

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

/* ---------- 本地支持 ---------- */
.page-contact .region-list {
  display: grid;
  gap: clamp(16px, 2.4vw, 22px);
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-contact .region-item {
  padding: 20px 22px;
  background: #FFFFFF;
  border-top: 4px solid var(--cyan);
  border-radius: var(--radius);
}

.page-contact .region-item h3 {
  margin: 0 0 8px;
  font-family: var(--font-head);
  font-weight: 900;
  font-size: 20px;
  line-height: 1.2;
  color: var(--night);
}

.page-contact .region-item p {
  margin: 0;
  font-size: 15px;
  line-height: 1.8;
  color: var(--contact-ink-soft);
}

/* ---------- 合作 ---------- */
.page-contact .partner-grid {
  display: grid;
  gap: clamp(18px, 3vw, 30px);
}

.page-contact .partner-card {
  padding: clamp(22px, 3vw, 32px);
  background: rgba(11, 18, 32, 0.52);
  border: 3px solid var(--contact-cyan-line);
  border-radius: var(--radius);
  box-shadow: var(--shadow-hard);
}

.page-contact .partner-card h3 {
  margin: 0 0 10px;
  font-family: var(--font-head);
  font-weight: 900;
  font-size: 24px;
  line-height: 1.16;
  color: var(--mist);
}

.page-contact .partner-card > p {
  margin: 0 0 16px;
  font-size: 15px;
  line-height: 1.8;
  color: var(--dim);
}

.page-contact .partner-list {
  display: grid;
  gap: 10px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-contact .partner-list li {
  position: relative;
  padding-left: 20px;
  font-size: 14px;
  line-height: 1.7;
  color: var(--mist);
}

.page-contact .partner-list li::before {
  content: "";
  position: absolute;
  top: 0.62em;
  left: 0;
  width: 8px;
  height: 8px;
  background: var(--amber);
  border-radius: 2px;
}

/* ---------- 收尾安静区 ---------- */
.page-contact .contact-close {
  padding-block: clamp(52px, 8vw, 110px) clamp(64px, 10vw, 140px);
}

.page-contact .contact-close__inner {
  max-width: 800px;
  display: grid;
  gap: 16px;
}

.page-contact .contact-close__kicker {
  margin: 0;
  font-family: var(--font-data);
  font-size: 12px;
  letter-spacing: 0.24em;
  color: var(--orange);
}

.page-contact .contact-close__title {
  margin: 0;
  font-family: var(--font-head);
  font-weight: 900;
  font-size: clamp(24px, 3.4vw, 40px);
  line-height: 1.1;
  letter-spacing: -0.01em;
  color: var(--mist);
}

.page-contact .contact-close__text {
  margin: 0;
  font-size: clamp(15px, 1.7vw, 18px);
  line-height: 1.85;
  color: var(--dim);
}

.page-contact .contact-close__links {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 10px;
}

/* ---------- 焦点与动效 ---------- */
.page-contact a:focus-visible,
.page-contact summary:focus-visible {
  outline: 2px solid var(--orange);
  outline-offset: 3px;
}

@media (hover: hover) {
  .page-contact .plan-card:hover {
    transform: translate(-2px, -2px);
  }

  .page-contact .flow-step:hover {
    transform: translate(-2px, -2px);
    border-left-color: var(--orange);
    box-shadow: var(--shadow-hard);
  }
}

/* ---------- 断点 ---------- */
@media (min-width: 760px) {
  .page-contact .channel-list,
  .page-contact .region-list,
  .page-contact .partner-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

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

@media (min-width: 900px) {
  .page-contact .flow-grid {
    grid-template-columns: minmax(0, 1.08fr) minmax(0, 1fr);
  }

  .page-contact .flow-media {
    position: sticky;
    top: 120px;
  }
}

@media (min-width: 1000px) {
  .page-contact .plan-rail {
    grid-auto-flow: row;
    grid-auto-columns: auto;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    overflow: visible;
    padding: 6px 6px 10px;
    scroll-snap-type: none;
  }
}

@media (min-width: 1100px) {
  .page-contact .region-list {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

@media (max-width: 420px) {
  .page-contact .plan-rail {
    grid-auto-columns: minmax(232px, 86%);
  }

  .page-contact .channel__value {
    font-size: 15px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-contact *,
  .page-contact *::before,
  .page-contact *::after {
    transition-duration: 0.01ms !important;
    animation-duration: 0.01ms !important;
  }

  .page-contact .plan-card:hover,
  .page-contact .flow-step:hover {
    transform: none;
  }
}