.page-contact {
  --c-rail: 248px;
  --c-tile-shadow: 0 16px 36px rgba(20, 22, 27, .07);
  display: block;
  background: var(--paper);
  color: var(--ink);
  padding-block-end: clamp(0px, 2vw, 20px);
}

.page-contact .breadcrumb {
  padding-block: clamp(16px, 3vw, 26px) 0;
}

/* ============ 首屏 ============ */

.page-contact .contact-hero {
  padding-block: clamp(24px, 4vw, 44px) clamp(36px, 6vw, 72px);
}

.page-contact .contact-hero__grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(26px, 4vw, 48px);
}

.page-contact .contact-hero__text h1 {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(32px, 5.4vw, 58px);
  line-height: 1.14;
  letter-spacing: .02em;
  margin: 14px 0 0;
}

.page-contact .contact-hero__lead {
  max-width: 33em;
  margin: 20px 0 0;
  font-size: clamp(16px, 1.7vw, 18px);
  line-height: 1.85;
  color: var(--slate);
}

.page-contact .contact-hero__slots {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 28px;
}

.page-contact .contact-hero__figure {
  position: relative;
  border-radius: var(--radius-lg);
  overflow: hidden;
}

.page-contact .contact-hero__figure::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(150deg, rgba(212, 160, 23, .18), rgba(30, 27, 51, 0) 58%);
  pointer-events: none;
}

@media (min-width: 900px) {
  .page-contact .contact-hero__grid {
    grid-template-columns: minmax(0, 1.04fr) minmax(0, .96fr);
    align-items: center;
    gap: clamp(36px, 5vw, 68px);
  }
}

/* ============ 三类入口 ============ */

.page-contact .contact-entries,
.page-contact .contact-prepare,
.page-contact .contact-card-sec,
.page-contact .contact-tips,
.page-contact .contact-filing {
  margin-top: clamp(52px, 8vw, 96px);
}

.page-contact .contact-entries__intro {
  max-width: 40em;
  margin: 14px 0 0;
  color: var(--slate);
  line-height: 1.8;
}

.page-contact .entries-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(20px, 3vw, 34px);
  margin-top: clamp(24px, 4vw, 38px);
}

.page-contact .entry-rail__hint {
  margin: 0 0 12px;
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: .06em;
  color: var(--slate);
}

.page-contact .entry-rail__list {
  display: flex;
  gap: 10px;
  overflow-x: auto;
  padding-bottom: 6px;
  -webkit-overflow-scrolling: touch;
}

.page-contact .entry-chip {
  flex: 0 0 auto;
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  grid-template-rows: auto auto;
  gap: 2px 12px;
  min-width: 200px;
  padding: 14px 20px;
  border: 1px solid var(--line-strong);
  border-radius: var(--radius);
  background: var(--paper-raised);
  color: var(--ink);
  text-decoration: none;
  transition: border-color .24s var(--ease), background .24s var(--ease), transform .24s var(--ease);
}

.page-contact .entry-chip__num {
  grid-row: 1 / span 2;
  align-self: center;
  font-family: var(--font-mono);
  font-size: 15px;
  font-weight: 700;
  color: var(--gold-deep);
}

.page-contact .entry-chip__label {
  font-weight: 700;
  font-size: 17px;
  letter-spacing: .02em;
}

.page-contact .entry-chip__desc {
  font-size: 13px;
  color: var(--slate);
  line-height: 1.5;
}

.page-contact .entry-chip:hover,
.page-contact .entry-chip:focus-visible {
  border-color: var(--gold);
  background: #FFFBF0;
  transform: translateY(-2px);
}

.page-contact .entry-chip.is-active {
  border-color: var(--gold);
  background: linear-gradient(140deg, #FFF9EA, #FDF3DA);
  box-shadow: inset 3px 0 0 var(--gold);
}

@media (min-width: 960px) {
  .page-contact .entries-grid {
    grid-template-columns: var(--c-rail) minmax(0, 1fr);
    gap: clamp(30px, 4vw, 58px);
    align-items: start;
  }

  .page-contact .entry-rail {
    position: sticky;
    top: 128px;
    align-self: start;
  }

  .page-contact .entry-rail__list {
    flex-direction: column;
    overflow: visible;
    padding-bottom: 0;
    gap: 12px;
  }

  .page-contact .entry-chip {
    min-width: 0;
  }
}

.page-contact .entry-card {
  position: relative;
  padding: clamp(22px, 3.4vw, 36px);
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  background: var(--paper-raised);
  box-shadow: var(--c-tile-shadow);
  scroll-margin-top: 124px;
  overflow: hidden;
}

.page-contact .entry-card + .entry-card {
  margin-top: clamp(18px, 2.6vw, 28px);
}

.page-contact .entry-card::before {
  content: "";
  position: absolute;
  inset: 0 auto 0 0;
  width: 5px;
  border-radius: 0 6px 6px 0;
}

.page-contact .entry-card--gold::before {
  background: linear-gradient(180deg, var(--gold-bright), var(--gold-deep));
}

.page-contact .entry-card--violet::before {
  background: linear-gradient(180deg, var(--violet), var(--violet-ink));
}

.page-contact .entry-card--blue::before {
  background: linear-gradient(180deg, var(--blue), var(--blue-ink));
}

.page-contact .entry-card__head h3 {
  margin: 14px 0 0;
  font-family: var(--font-serif);
  font-weight: 600;
  font-size: clamp(20px, 2.4vw, 27px);
  line-height: 1.35;
}

.page-contact .entry-card__text {
  margin: 14px 0 0;
  max-width: 44em;
  line-height: 1.8;
  color: var(--slate);
}

.page-contact .entry-card__cols {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 20px;
  margin-top: 22px;
  padding-top: 20px;
  border-top: 1px dashed var(--line-strong);
}

@media (min-width: 760px) {
  .page-contact .entry-card__cols {
    grid-template-columns: minmax(0, 1fr) minmax(0, 1.1fr);
    gap: clamp(24px, 3vw, 44px);
  }
}

.page-contact .entry-col__label {
  margin: 0 0 10px;
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: .06em;
  color: var(--gold-deep);
}

.page-contact .entry-col__list {
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 8px;
}

.page-contact .entry-col__list li {
  position: relative;
  padding-left: 18px;
  line-height: 1.7;
}

.page-contact .entry-col__list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: .72em;
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--silver);
}

.page-contact .entry-col__text {
  margin: 0;
  line-height: 1.8;
  color: var(--slate);
}

.page-contact .entry-col__text a {
  color: var(--blue-ink);
  text-decoration: underline;
  text-underline-offset: 3px;
}

/* ============ 提交前准备 ============ */

.page-contact .prepare-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(26px, 4vw, 48px);
  align-items: start;
}

.page-contact .prepare-copy__text {
  margin: 14px 0 0;
  max-width: 40em;
  line-height: 1.8;
  color: var(--slate);
}

.page-contact .prep-list {
  margin: 28px 0 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 20px;
}

.page-contact .prep-item {
  display: grid;
  grid-template-columns: 46px minmax(0, 1fr);
  gap: 16px;
  align-items: start;
}

.page-contact .prep-item__num {
  width: 46px;
  height: 46px;
  border-radius: 50%;
  display: grid;
  place-items: center;
  font-family: var(--font-mono);
  font-size: 16px;
  font-weight: 700;
  color: var(--ink);
  background: radial-gradient(circle at 32% 26%, var(--gold-bright), var(--gold-deep));
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, .55), 0 6px 14px rgba(138, 106, 18, .22);
}

.page-contact .prep-item__body h3 {
  margin: 6px 0 0;
  font-size: 18px;
  font-weight: 700;
  letter-spacing: .01em;
}

.page-contact .prep-item__body p {
  margin: 8px 0 0;
  line-height: 1.8;
  color: var(--slate);
}

.page-contact .prepare-figure {
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid var(--line);
}

@media (min-width: 900px) {
  .page-contact .prepare-grid {
    grid-template-columns: minmax(0, 1fr) minmax(0, 380px);
    gap: clamp(36px, 5vw, 68px);
  }
}

/* ============ 联系方式 ============ */

.page-contact .contact-card-sec__intro {
  max-width: 40em;
  margin: 14px 0 0;
  line-height: 1.8;
  color: var(--slate);
}

.page-contact .contact-cards {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  margin-top: clamp(22px, 3vw, 32px);
  border: 1px solid var(--line-strong);
  border-radius: var(--radius-lg);
  overflow: hidden;
  background: #E8EBEF;
}

.page-contact .contact-tile {
  padding: clamp(22px, 3vw, 32px);
  background: linear-gradient(180deg, rgba(255, 255, 255, .9), rgba(199, 205, 212, .45));
  border-top: 1px solid rgba(212, 160, 23, .55);
}

.page-contact .contact-tile:first-child {
  border-top: 0;
}

.page-contact .contact-tile__label {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: .08em;
  color: var(--gold-deep);
}

.page-contact .contact-tile__value {
  margin: 12px 0 0;
  font-family: var(--font-mono);
  font-size: clamp(15px, 1.6vw, 17px);
  letter-spacing: .02em;
  line-height: 1.55;
  color: var(--ink);
  overflow-wrap: anywhere;
}

.page-contact .contact-tile__value--addr {
  font-family: var(--font-sans);
  font-size: 15px;
  line-height: 1.7;
}

.page-contact .contact-tile__meta {
  margin: 12px 0 0;
  font-size: 14px;
  line-height: 1.7;
  color: var(--slate);
}

@media (min-width: 860px) {
  .page-contact .contact-cards {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .page-contact .contact-tile {
    border-top: 0;
    border-left: 1px solid rgba(212, 160, 23, .55);
  }

  .page-contact .contact-tile:first-child {
    border-left: 0;
  }
}

/* ============ 合作对接 ============ */

.page-contact .contact-partner {
  margin-top: clamp(52px, 8vw, 96px);
}

.page-contact .partner-panel {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(24px, 3.4vw, 40px);
  padding: clamp(26px, 4vw, 52px);
  border-radius: var(--radius-lg);
  background: linear-gradient(148deg, var(--night) 0%, #14121F 78%, #100E19 100%);
  color: var(--paper);
}

.page-contact .partner-panel__lead {
  max-width: 40em;
  margin: 16px 0 0;
  line-height: 1.85;
  color: var(--silver);
}

.page-contact .partner-panel .section-title {
  color: var(--paper);
  margin-top: 10px;
}

.page-contact .eyebrow--onnight {
  color: var(--gold-bright);
}

.page-contact .partner-num {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(48px, 7vw, 76px);
  line-height: 1;
  letter-spacing: .04em;
  color: var(--gold-bright);
}

.page-contact .partner-num__unit {
  font-size: .34em;
  margin-left: 6px;
  letter-spacing: .08em;
  color: var(--silver);
}

.page-contact .partner-num__label {
  margin: 12px 0 0;
  font-size: 15px;
  letter-spacing: .04em;
  color: var(--paper);
}

.page-contact .partner-num__note {
  margin: 8px 0 0;
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: .05em;
  color: rgba(199, 205, 212, .78);
}

.page-contact .partner-panel .panel {
  border: 1px solid var(--line-light);
  border-radius: var(--radius);
  background: rgba(255, 255, 255, .045);
  overflow: hidden;
}

.page-contact .partner-panel .panel__head {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 16px 20px;
  border: 0;
  background: transparent;
  color: var(--gold-bright);
  font-family: inherit;
  font-size: 16px;
  font-weight: 700;
  letter-spacing: .02em;
  text-align: left;
  cursor: pointer;
}

.page-contact .partner-panel .panel__head::after {
  content: "＋";
  font-family: var(--font-mono);
  font-size: 15px;
  color: var(--silver);
  transition: transform .2s var(--ease);
}

.page-contact .partner-panel .panel[data-open] .panel__head::after {
  content: "－";
}

.page-contact .partner-panel .panel__body {
  display: none;
  padding: 0 20px 20px;
}

.page-contact .partner-panel .panel[data-open] .panel__body {
  display: block;
}

.page-contact .partner-materials {
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 12px;
}

.page-contact .partner-materials li {
  position: relative;
  padding-left: 18px;
  line-height: 1.8;
  color: var(--silver);
}

.page-contact .partner-materials li::before {
  content: "";
  position: absolute;
  left: 0;
  top: .78em;
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--gold);
}

.page-contact .partner-materials__k {
  font-family: var(--font-mono);
  font-size: 14px;
  color: var(--paper);
  margin-right: 4px;
}

@media (min-width: 900px) {
  .page-contact .partner-panel {
    grid-template-columns: minmax(0, 1.45fr) minmax(0, 1fr);
    align-items: start;
  }

  .page-contact .partner-panel__panel {
    grid-column: 1 / -1;
  }
}

/* ============ 沟通建议 ============ */

.page-contact .tips-row {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: clamp(18px, 2.6vw, 26px);
  margin-top: clamp(22px, 3vw, 32px);
}

.page-contact .tip {
  padding: clamp(20px, 2.8vw, 28px);
  border-radius: var(--radius);
  border: 1px solid var(--line);
  background: var(--paper-raised);
}

.page-contact .tip__num {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: .1em;
  color: var(--paper);
  background: var(--ink);
  border-radius: var(--radius-pill);
  padding: 4px 12px;
}

.page-contact .tip h3 {
  margin: 16px 0 0;
  font-size: 18px;
  font-weight: 700;
}

.page-contact .tip p {
  margin: 10px 0 0;
  line-height: 1.8;
  color: var(--slate);
}

@media (min-width: 780px) {
  .page-contact .tips-row {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

/* ============ 服务范围与备案 ============ */

.page-contact .filing-inner {
  padding-top: clamp(24px, 3vw, 34px);
  border-top: 1px solid var(--line-strong);
}

.page-contact .filing-lead {
  max-width: 42em;
  margin: 14px 0 0;
  line-height: 1.85;
  color: var(--slate);
}

.page-contact .filing-list {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 0;
  margin: clamp(22px, 3vw, 32px) 0 0;
}

.page-contact .filing-item {
  display: grid;
  grid-template-columns: 110px minmax(0, 1fr);
  gap: 16px;
  padding: 16px 0;
  border-top: 1px solid var(--line);
}

.page-contact .filing-item dt {
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: .06em;
  color: var(--gold-deep);
  padding-top: 3px;
}

.page-contact .filing-item dd {
  margin: 0;
  line-height: 1.75;
}

.page-contact .filing-note {
  max-width: 46em;
  margin: 22px 0 0;
  line-height: 1.85;
  color: var(--slate);
}

.page-contact .filing-note a {
  color: var(--blue-ink);
  text-decoration: underline;
  text-underline-offset: 3px;
}

@media (min-width: 780px) {
  .page-contact .filing-list {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    column-gap: clamp(28px, 4vw, 56px);
  }
}

/* ============ 金属渐变收束带 ============ */

.page-contact .contact-band {
  margin-top: clamp(48px, 8vw, 92px);
  background: linear-gradient(104deg, var(--gold-deep) 0%, #4A3A22 26%, var(--night) 62%, #100E19 100%);
  color: var(--paper);
}

.page-contact .contact-band__inner {
  padding-block: clamp(22px, 3.2vw, 34px);
}

.page-contact .contact-band__text {
  margin: 0;
  font-family: var(--font-mono);
  font-size: clamp(13px, 1.5vw, 15px);
  letter-spacing: .06em;
  line-height: 1.7;
}

@media (prefers-reduced-motion: reduce) {
  .page-contact .entry-chip,
  .page-contact .partner-panel .panel__head::after {
    transition: none;
  }

  .page-contact .entry-chip:hover,
  .page-contact .entry-chip:focus-visible {
    transform: none;
  }
}