/* ============================================================
   esecond · 全站公共区域样式
   唯一职责：让所有非首页页面的头部、页脚与首页保持一致。
   正文样式由各页面自己的 CSS 负责，不在本文件中修改。
   ============================================================ */

body:not(.home-tech) {
  --home-nav-height: clamp(92px, 3.8vw, 112px);
  --tech-ink: #050913;
  --tech-gold: #e3b52e;
  --tech-gold-bright: #f2cd52;
  --tech-hover-line: rgba(196, 145, 28, 0.68);
  --tech-content-max: min(1440px, calc(100% - clamp(40px, 4vw, 120px)));
  padding-top: var(--home-nav-height);
}

/* ==================== 公共头部 ==================== */
body:not(.home-tech) .nav {
  position: fixed;
  inset: 0 0 auto;
  z-index: 1000;
  height: var(--home-nav-height);
  background: #050913;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
  backdrop-filter: blur(18px);
}

body:not(.home-tech) .nav,
body:not(.home-tech) .nav.scrolled {
  background: #050913;
  box-shadow: 0 18px 50px rgba(0, 0, 0, 0.22);
}

body:not(.home-tech) .nav::before,
body:not(.home-tech) .nav.scrolled::before {
  height: 1px;
  opacity: 0.46;
  background: linear-gradient(90deg, transparent, var(--tech-hover-line) 20%, var(--tech-hover-line) 80%, transparent);
}

body:not(.home-tech) .nav-inner {
  width: 100%;
  max-width: var(--tech-content-max);
  height: 100%;
  margin: 0 auto;
  padding: 0;
  box-sizing: border-box;
  display: grid;
  grid-template-columns: auto minmax(420px, 1fr) auto;
  align-items: center;
  gap: clamp(16px, 2vw, 36px);
}

body:not(.home-tech) .logo {
  flex: 0 0 auto;
  display: flex;
  align-items: center;
}

body:not(.home-tech) .logo-img {
  width: clamp(174px, 7vw, 224px);
  height: auto;
  max-height: 82px;
  object-fit: contain;
}

body:not(.home-tech) .nav-menu {
  position: static;
  inset: auto;
  width: min(100%, 560px);
  min-width: 0;
  margin-left: 0;
  justify-self: end;
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: clamp(48px, 4.4vw, 68px);
}

body:not(.home-tech) .nav-link {
  color: rgb(220, 224, 232);
  font-size: var(--type-body);
  font-weight: 500;
  letter-spacing: 0.03em;
  padding: 34px 0 31px;
  border-bottom: 0;
  transition: color 0.25s;
}

body:not(.home-tech) .nav-link::before {
  left: 0;
  right: 0;
  height: 2px;
  background: var(--tech-hover-line);
}

body:not(.home-tech) .nav-link:hover,
body:not(.home-tech) .nav-link:focus-visible,
body:not(.home-tech) .nav-link.active,
body:not(.home-tech) .nav.scrolled .nav-link:hover,
body:not(.home-tech) .nav.scrolled .nav-link:focus-visible,
body:not(.home-tech) .nav.scrolled .nav-link.active {
  color: var(--tech-gold-bright);
}

body:not(.home-tech) .nav-link:hover::before,
body:not(.home-tech) .nav-link:focus-visible::before,
body:not(.home-tech) .nav-link.active::before {
  transform: scaleX(1);
}

body:not(.home-tech) .nav.scrolled .nav-link {
  color: rgb(220, 224, 232);
}

body:not(.home-tech) .nav-link:focus-visible,
body:not(.home-tech) .nav-contact:focus-visible {
  outline: 2px solid var(--tech-gold-bright);
  outline-offset: 5px;
}

body:not(.home-tech) .sub-nav {
  background: rgba(8, 17, 31, 0.98);
  border: 1px solid rgba(255, 255, 255, 0.12);
  box-shadow: 0 24px 60px rgba(0, 0, 0, 0.35);
}

body:not(.home-tech) .nav-item.has-sub:focus-within .sub-nav,
body:not(.home-tech) .nav-item.has-sub.submenu-open .sub-nav {
  opacity: 1;
  visibility: visible;
  transform: translateX(-50%) translateY(0);
}

body:not(.home-tech) .sub-nav-toggle { display: none; }

body:not(.home-tech) .sub-nav a { color: #fff; }
body:not(.home-tech) .sub-nav a:hover {
  color: var(--tech-gold-bright);
  background: rgba(255, 255, 255, 0.04);
}

body:not(.home-tech) .nav-contact {
  flex: 0 0 auto;
  min-width: 146px;
  height: 48px;
  padding: 0 22px;
  display: inline-flex;
  align-items: center;
  justify-content: space-between;
  gap: 22px;
  color: var(--tech-gold-bright);
  font-size: var(--type-button);
  font-weight: 650;
  border: 1px solid rgba(227, 181, 46, 0.75);
  transition: background 0.25s, color 0.25s, border-color 0.25s;
}

body:not(.home-tech) .nav-contact:hover,
body:not(.home-tech) .nav-contact:focus-visible {
  color: var(--tech-ink);
  background: var(--tech-gold);
  border-color: var(--tech-gold-bright);
}

body:not(.home-tech) .nav-toggle span { background: #fff; }

/* ==================== 公共页脚 ==================== */
body:not(.home-tech) .footer {
  background: #050913;
  border-top: 1px solid rgba(227, 181, 46, 0.48);
}

body:not(.home-tech) .footer-inner {
  width: var(--tech-content-max);
  max-width: none;
  margin: 0 auto;
  padding: clamp(72px, 6vw, 104px) 0 24px;
}

body:not(.home-tech) .footer .logo-img {
  width: 196px;
  max-height: none;
}

body:not(.home-tech) .footer-desc {
  max-width: none;
  margin: 22px 0 0;
  color: rgba(255, 255, 255, 0.9);
  font-size: clamp(15px, 1.18vw, 17px);
  line-height: 1.7;
  white-space: nowrap;
}

body:not(.home-tech) .footer-main {
  display: grid;
  grid-template-columns: minmax(320px, 1fr) auto;
  align-items: start;
  gap: clamp(64px, 9vw, 160px);
  padding-bottom: clamp(64px, 5vw, 88px);
}

body:not(.home-tech) .footer-brand-col,
body:not(.home-tech) .fc-item { min-width: 0; }

body:not(.home-tech) .footer-contact {
  display: flex;
  flex-wrap: wrap;
  gap: 22px 42px;
  margin-top: 38px;
}

body:not(.home-tech) .fc-label {
  display: block;
  color: var(--tech-gold-bright);
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.1em;
}

body:not(.home-tech) .fc-value {
  display: block;
  margin-top: 8px;
  overflow-wrap: anywhere;
  color: rgba(255, 255, 255, 0.94);
  font-size: 16px;
  line-height: 1.5;
}

body:not(.home-tech) .footer-cols {
  width: min(100%, 720px);
  margin-left: auto;
  justify-self: end;
  display: grid;
  grid-template-columns: repeat(3, minmax(140px, 1fr));
  column-gap: clamp(40px, 4vw, 72px);
  padding-top: 4px;
}

body:not(.home-tech) .footer-cols .footer-col {
  min-width: 0;
  text-align: right;
}

body:not(.home-tech) .footer-col-title {
  position: relative;
  margin-bottom: 24px;
  padding-top: 14px;
  color: #fff;
  font-size: 16px;
  font-weight: 650;
  letter-spacing: 0.04em;
}

body:not(.home-tech) .footer-col-title::before {
  content: '';
  position: absolute;
  top: 0;
  right: 0;
  width: 22px;
  height: 1px;
  background: var(--tech-gold-bright);
}

body:not(.home-tech) .footer-col-list {
  display: grid;
  row-gap: 16px;
}

body:not(.home-tech) .footer-col-list a {
  color: rgba(255, 255, 255, 0.86);
  font-size: 15px;
  line-height: 1.55;
  transition: color 0.2s;
}

body:not(.home-tech) .footer-col-list a:hover,
body:not(.home-tech) .footer-col-list a:focus-visible,
body:not(.home-tech) .footer-beian:hover,
body:not(.home-tech) .footer-beian:focus-visible {
  color: var(--tech-gold-bright);
}

body:not(.home-tech) .footer-bottom {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  padding-top: 22px;
  border-top-color: rgba(255, 255, 255, 0.16);
  color: rgba(255, 255, 255, 0.78);
  font-size: 14px;
}

body:not(.home-tech) .footer-copy,
body:not(.home-tech) .footer-friend {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px 18px;
}

body:not(.home-tech) .footer-friend { justify-content: flex-end; }
body:not(.home-tech) .footer-bottom a {
  color: inherit;
  transition: color 0.2s;
}

/* ==================== 公共区域响应式 ==================== */
@media (max-width: 1180px) {
  body:not(.home-tech) .nav-inner,
  body:not(.home-tech) .footer-inner {
    width: var(--tech-content-max);
    max-width: none;
  }

  body:not(.home-tech) .nav-menu { gap: clamp(34px, 3.4vw, 48px); }
  body:not(.home-tech) .nav-contact {
    min-width: clamp(110px, 9vw, 126px);
    padding: 0 clamp(12px, 1.2vw, 16px);
    gap: 14px;
  }
}

@media (min-width: 901px) and (max-width: 1180px) {
  body:not(.home-tech) .footer-main {
    grid-template-columns: minmax(300px, 1fr) auto;
    gap: clamp(36px, 4vw, 56px);
  }
  body:not(.home-tech) .footer-cols { column-gap: clamp(20px, 2.6vw, 32px); }
}

@media (max-width: 900px) {
  body:not(.home-tech) { --home-nav-height: 76px; }
  body:not(.home-tech) .nav { height: var(--home-nav-height); }
  body:not(.home-tech) .nav-inner {
    width: calc(100% - 36px);
    display: flex;
    justify-content: space-between;
  }
  body:not(.home-tech) .logo-img {
    width: 142px;
    max-height: 60px;
  }
  body:not(.home-tech) .nav-contact { display: none; }
  body:not(.home-tech) .nav-toggle {
    display: flex;
    position: relative;
    z-index: 1002;
    margin-left: auto;
  }
  body:not(.home-tech) .nav-menu {
    position: fixed;
    inset: 76px 0 0 auto;
    width: min(340px, 86vw);
    max-width: none;
    height: calc(100vh - 76px);
    height: calc(100dvh - 76px);
    margin: 0;
    padding: 20px 28px 28px;
    display: flex;
    flex-direction: column;
    align-items: stretch;
    justify-content: flex-start;
    gap: 0;
    background: rgba(5, 9, 19, 0.984);
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    transform: translateX(110%);
    visibility: hidden;
    transition: transform 0.3s, visibility 0.3s;
    overflow-y: auto;
    overscroll-behavior: contain;
    -webkit-overflow-scrolling: touch;
  }
  body:not(.home-tech) .nav-menu.open {
    transform: translateX(0);
    visibility: visible;
  }
  body:not(.home-tech) .nav-close { display: none !important; }
  body:not(.home-tech) .nav-menu > *,
  body:not(.home-tech) .nav-menu .nav-item {
    display: block;
    width: 100%;
    height: auto;
    flex: 0 0 auto;
  }
  body:not(.home-tech) .nav-menu .nav-link {
    display: flex;
    align-items: center;
    width: 100%;
    min-height: 56px;
    height: auto;
    padding: 15px 0;
    box-sizing: border-box;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
  }
  body:not(.home-tech) .nav-menu .nav-link:hover,
  body:not(.home-tech) .nav-menu .nav-link:focus-visible,
  body:not(.home-tech) .nav-menu .nav-link.active {
    color: var(--tech-gold-bright);
    border-bottom-color: rgba(255, 255, 255, 0.1);
  }
  body:not(.home-tech) .nav-link.active::before { display: none; }
  body:not(.home-tech) .nav-menu .nav-item.has-sub {
    position: relative;
    display: flex;
    flex-wrap: wrap;
    align-items: stretch;
    height: auto !important;
  }
  body:not(.home-tech) .nav-menu .nav-item.has-sub > .nav-link {
    flex: 1 1 calc(100% - 48px);
    width: calc(100% - 48px);
    min-width: 0;
  }
  body:not(.home-tech) .nav-menu .sub-nav-toggle {
    flex: 0 0 48px;
    width: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 56px;
    height: auto;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    color: #fff;
  }
  body:not(.home-tech) .nav-menu .sub-nav-toggle span {
    width: 8px;
    height: 8px;
    border-right: 2px solid currentColor;
    border-bottom: 2px solid currentColor;
    transform: rotate(45deg) translate(-2px, -2px);
    transition: transform 0.2s ease;
  }
  body:not(.home-tech) .nav-menu .submenu-open .sub-nav-toggle span {
    transform: rotate(225deg) translate(-2px, -2px);
  }
  body:not(.home-tech) .nav-menu .nav-item.has-sub .sub-nav {
    flex: 0 0 100%;
    position: static;
    width: 100%;
    min-width: 0;
    height: auto !important;
    max-height: none;
    padding: 6px 0 10px 18px;
    border: 0;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 0;
    box-shadow: none;
    transform: none !important;
    opacity: 1;
    visibility: visible;
    overflow: visible;
    display: none !important;
  }
  body:not(.home-tech) .nav-menu .nav-item.has-sub.submenu-open .sub-nav { display: block !important; }
  body:not(.home-tech) .nav-menu .sub-nav a {
    display: flex !important;
    align-items: center;
    width: 100%;
    min-height: 44px;
    height: auto !important;
    padding: 10px 0;
    color: rgba(255, 255, 255, 0.78);
    font-size: 14px;
    line-height: 1.5;
    white-space: normal;
  }
  body:not(.home-tech) .footer-inner { width: calc(100% - 36px); }
  body:not(.home-tech) .footer-main {
    grid-template-columns: 1fr;
    gap: 42px;
    padding-bottom: 44px;
  }
  body:not(.home-tech) .footer-desc { white-space: normal; }
  body:not(.home-tech) .footer-cols {
    width: 100%;
    column-gap: 24px;
  }
  body:not(.home-tech) .footer-bottom {
    align-items: flex-start;
    flex-direction: column;
    gap: 14px;
  }
  body:not(.home-tech) .footer-friend { justify-content: flex-start; }
}

@media (max-width: 767px) {
  body:not(.home-tech) .footer-inner { padding-top: 48px; }
  body:not(.home-tech) .footer .logo-img { width: 180px; }
  body:not(.home-tech) .footer-contact {
    display: grid;
    grid-template-columns: 1fr;
    gap: 16px;
    margin-top: 24px;
  }
  body:not(.home-tech) .footer-cols {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    column-gap: 16px;
    row-gap: 0;
    padding-top: 0;
  }
  body:not(.home-tech) .footer-cols .footer-col {
    padding: 0;
    border-top: 0;
    text-align: left;
  }
  body:not(.home-tech) .footer-col-title {
    margin-bottom: 15px;
    padding-top: 10px;
    font-size: 14px;
  }
  body:not(.home-tech) .footer-col-title::before {
    right: auto;
    left: 0;
    display: block;
    width: 18px;
  }
  body:not(.home-tech) .footer-col-list { row-gap: 11px; }
  body:not(.home-tech) .footer-col-list a {
    color: rgba(255, 255, 255, 0.88);
    font-size: 14px;
  }
  body:not(.home-tech) .footer-desc {
    margin-top: 18px;
    font-size: 16px;
  }
}