/* ==========================================================================
   首页 · 普通企业官网与工业视觉层
   全站变量和通用组件仍由 style.css 管理。
   ========================================================================== */

.home-page {
  color: #eef1f1;
  background: #080b0d;
}

.home-page .site-header:not(.scrolled):not(.nav-open) {
  background: linear-gradient(180deg, rgba(4, 7, 8, .78), transparent);
}

.home-page .backtop {
  bottom: 112px;
}

/* ---------- 企业 Hero ---------- */

.corporate-hero {
  min-height: 620px;
  overflow: hidden;
  color: #f4f6f5;
  background:
    linear-gradient(110deg, #030506 0%, #0b1012 58%, #11191c 100%);
}

.corporate-hero-inner {
  min-height: 620px;
  display: grid;
  grid-template-columns: minmax(0, .92fr) minmax(460px, 1.08fr);
  align-items: center;
  gap: clamp(34px, 5vw, 78px);
  padding-top: var(--header-h);
  padding-bottom: 36px;
}

.corporate-hero-copy {
  position: relative;
  z-index: 2;
  padding: 56px 0 48px;
}

.corporate-kicker {
  margin-bottom: 20px;
  color: var(--copper);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: .2em;
}

.corporate-hero h1 {
  max-width: 9em;
  color: #f6f7f6;
  font-size: clamp(44px, 4.4vw, 66px);
  font-weight: 650;
  line-height: 1.13;
  letter-spacing: -.025em;
  text-wrap: balance;
}

.corporate-hero h1 span {
  display: block;
}

.corporate-lead {
  max-width: 560px;
  margin-top: 24px;
  color: rgba(238, 241, 241, .74);
  font-size: clamp(16px, 1.3vw, 18px);
  line-height: 1.85;
}

.corporate-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 32px;
}

.corporate-strengths {
  margin-top: 36px;
  padding-top: 18px;
  border-top: 1px solid rgba(238, 241, 241, .16);
  color: rgba(238, 241, 241, .5);
  font-size: 12px;
  letter-spacing: .12em;
}

.corporate-hero-media {
  position: relative;
  min-height: 420px;
  overflow: hidden;
  background: #111719;
  box-shadow: 0 28px 60px rgba(0, 0, 0, .28);
}

.corporate-hero-media::before {
  position: absolute;
  z-index: 1;
  inset: 0;
  content: "";
  pointer-events: none;
  background: linear-gradient(90deg, rgba(7, 11, 13, .78) 0%, transparent 24%, transparent 82%, rgba(7, 11, 13, .24) 100%);
}

.corporate-hero-media img {
  width: 100%;
  height: 420px;
  display: block;
  object-fit: cover;
  object-position: center;
  filter: saturate(.75) contrast(1.04);
}

/* ---------- 首页后续内容 ---------- */

.home-page .section {
  position: relative;
  padding: 112px 0;
}

.home-section-head {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  align-items: end;
  gap: 18px 40px;
  margin-bottom: 52px;
}

.home-section-head > p {
  grid-column: 1 / -1;
  color: var(--copper);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: .22em;
}

.home-section-head h2 {
  max-width: 760px;
  color: #f0f2f1;
  font-size: clamp(30px, 3.4vw, 48px);
  font-weight: 620;
  line-height: 1.24;
  letter-spacing: -.015em;
}

.home-section-head .link-more {
  align-self: center;
  color: #d8dddd;
}

.home-capabilities {
  background: #0a0e10;
  border-top: 1px solid rgba(226, 232, 232, .1);
}

.capability-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  border-top: 1px solid rgba(226, 232, 232, .16);
  border-bottom: 1px solid rgba(226, 232, 232, .16);
}

.capability-item {
  min-height: 330px;
  padding: 32px 28px 30px;
  color: #eef1f1;
  border-right: 1px solid rgba(226, 232, 232, .16);
  transition: background .24s ease, transform .24s ease;
}

.capability-item:last-child {
  border-right: 0;
}

.capability-item:hover {
  color: #fff;
  background: #11181b;
  transform: translateY(-4px);
}

.capability-index {
  display: block;
  margin-bottom: 70px;
  color: var(--copper);
  font-size: 12px;
  font-variant-numeric: tabular-nums;
}

.capability-item h3 {
  color: #f4f6f5;
  font-size: 24px;
  font-weight: 620;
}

.capability-item p {
  margin-top: 14px;
  color: rgba(226, 232, 232, .64);
  font-size: 14px;
  line-height: 1.75;
}

.capability-meta {
  display: block;
  margin-top: 28px;
  color: rgba(226, 232, 232, .42);
  font-size: 11px;
  letter-spacing: .12em;
}

.home-brands {
  overflow: hidden;
  background: #0d1214;
  border-top: 1px solid rgba(226, 232, 232, .08);
}

.home-brands .marquee {
  padding: 2px 0;
}

.home-brands .logo-card {
  height: 88px;
  border: 0;
  border-radius: 2px;
  box-shadow: none;
  filter: saturate(.72);
}

.home-proof {
  color: #eff2f1;
  background: #070a0b;
  border-top: 1px solid rgba(226, 232, 232, .08);
}

.proof-metrics {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  margin-bottom: 112px;
  border: 1px solid rgba(226, 232, 232, .16);
}

.proof-metrics > div {
  display: flex;
  min-height: 148px;
  flex-direction: column;
  justify-content: center;
  gap: 10px;
  padding: 28px;
  border-right: 1px solid rgba(226, 232, 232, .16);
}

.proof-metrics > div:last-child {
  border-right: 0;
}

.proof-metrics strong {
  color: #f5f6f6;
  font-size: clamp(30px, 3vw, 46px);
  font-weight: 620;
  line-height: 1;
}

.proof-metrics strong small {
  margin-left: 4px;
  color: var(--copper);
  font-size: .38em;
}

.proof-metrics > div > span {
  color: rgba(226, 232, 232, .52);
  font-size: 12px;
  letter-spacing: .06em;
}

.home-case-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 18px;
}

.home-case {
  display: block;
  padding-bottom: 24px;
  color: #eef1f1;
  border-bottom: 1px solid rgba(226, 232, 232, .16);
}

.home-case:hover {
  color: #fff;
}

.home-case-media {
  aspect-ratio: 4 / 3;
  margin-bottom: 22px;
  overflow: hidden;
  background: #121719;
}

.home-case-media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  filter: saturate(.7) contrast(1.04);
  transition: transform .5s ease, filter .3s ease;
}

.home-case:hover img {
  transform: scale(1.035);
  filter: saturate(.95) contrast(1.04);
}

.home-case > span {
  color: var(--copper);
  font-size: 11px;
  letter-spacing: .12em;
}

.home-case h3 {
  margin-top: 11px;
  color: #eef1f1;
  font-size: 18px;
  font-weight: 560;
  line-height: 1.6;
}

.home-contact {
  background: #0d1214;
  border-top: 1px solid rgba(226, 232, 232, .08);
}

.home-contact-panel {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  align-items: center;
  gap: 40px;
  padding: 52px 0;
  border-top: 1px solid rgba(226, 232, 232, .18);
  border-bottom: 1px solid rgba(226, 232, 232, .18);
}

.home-contact-panel p {
  margin-bottom: 10px;
  color: var(--copper);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: .2em;
}

.home-contact-panel h2 {
  color: #f4f6f5;
  font-size: clamp(30px, 4vw, 48px);
  font-weight: 620;
  letter-spacing: -.015em;
}

.home-contact-panel span {
  display: block;
  margin-top: 12px;
  color: rgba(226, 232, 232, .58);
}

/* ---------- 响应式与静态降级 ---------- */

@media (max-width: 1000px) {
  .corporate-hero-inner { grid-template-columns: minmax(0, .9fr) minmax(380px, 1.1fr); }
  .capability-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .capability-item:nth-child(2) { border-right: 0; }
  .capability-item:nth-child(-n + 2) { border-bottom: 1px solid rgba(226, 232, 232, .16); }
  .proof-metrics { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .proof-metrics > div:nth-child(2) { border-right: 0; }
  .proof-metrics > div:nth-child(-n + 2) { border-bottom: 1px solid rgba(226, 232, 232, .16); }
}

@media (max-width: 767px) {
  .corporate-hero,
  .corporate-hero-inner {
    min-height: 0;
  }

  .corporate-hero-inner {
    grid-template-columns: 1fr;
    gap: 4px;
    padding-top: calc(var(--header-h) + 30px);
    padding-bottom: 44px;
  }

  .corporate-hero-copy {
    padding: 28px 0 30px;
  }

  .corporate-hero h1 {
    max-width: 8em;
    font-size: clamp(38px, 11vw, 54px);
  }

  .corporate-lead {
    margin-top: 15px;
    font-size: 15px;
    line-height: 1.75;
  }

  .corporate-kicker {
    margin-bottom: 12px;
    font-size: 10px;
  }

  .corporate-actions {
    gap: 9px;
    margin-top: 22px;
  }

  .corporate-actions .btn {
    padding: 11px 18px;
    font-size: 13px;
  }

  .corporate-strengths {
    margin-top: 24px;
    padding-top: 14px;
    font-size: 10.5px;
  }

  .corporate-hero-media {
    min-height: 0;
  }

  .corporate-hero-media::before {
    background: linear-gradient(180deg, rgba(7, 11, 13, .42) 0%, transparent 32%, rgba(7, 11, 13, .2) 100%);
  }

  .corporate-hero-media img {
    height: auto;
    min-height: 190px;
    aspect-ratio: 1440 / 552;
  }

  .home-page .section {
    padding: 76px 0;
  }

  .home-section-head {
    grid-template-columns: 1fr;
    margin-bottom: 36px;
  }

  .home-section-head > p {
    grid-column: auto;
  }

  .home-section-head h2 {
    font-size: 31px;
  }

  .home-section-head .link-more {
    justify-self: start;
  }

  .capability-grid,
  .proof-metrics,
  .home-case-grid,
  .home-contact-panel {
    grid-template-columns: 1fr;
  }

  .capability-item {
    min-height: 0;
    padding: 26px 18px 30px;
    border-right: 0;
    border-bottom: 1px solid rgba(226, 232, 232, .16);
  }

  .capability-item:last-child {
    border-bottom: 0;
  }

  .capability-index {
    margin-bottom: 38px;
  }

  .proof-metrics {
    margin-bottom: 76px;
  }

  .proof-metrics > div {
    min-height: 120px;
    border-right: 0;
    border-bottom: 1px solid rgba(226, 232, 232, .16);
  }

  .proof-metrics > div:last-child {
    border-bottom: 0;
  }

  .home-case-grid {
    gap: 40px;
  }

  .home-contact-panel {
    align-items: start;
    padding: 42px 0;
  }

  .home-contact-panel .btn {
    justify-self: start;
  }

  .home-page .backtop {
    right: 18px;
    bottom: 88px;
  }
}