/* SkyQuest tech navigation overlay */
:root {
  --nav-accent-cyan: #21d4fd;
  --nav-accent-blue: #0071e3;
  --nav-accent-violet: #7b61ff;
}

/* Logo motion: a slowly orbiting glow halo behind the mark, plus a gentle
   breathing glow on the mark itself. Respects prefers-reduced-motion via
   each page's existing global animation-duration override. */
@keyframes logoSpin {
  from { transform: rotate(0deg); }
  to { transform: rotate(360deg); }
}

@keyframes logoPulse {
  0%, 100% { filter: saturate(1.18) drop-shadow(0 0 9px rgba(33,212,253,0.42)); }
  50% { filter: saturate(1.32) drop-shadow(0 0 15px rgba(33,212,253,0.68)); }
}

#nav {
  background:
    linear-gradient(180deg, rgba(255,255,255,0.94), rgba(255,255,255,0.82)),
    radial-gradient(circle at 14% 0%, rgba(33,212,253,0.13), transparent 28%),
    radial-gradient(circle at 78% 0%, rgba(123,97,255,0.10), transparent 30%);
  border-bottom: 1px solid rgba(0,113,227,0.08);
  box-shadow: 0 8px 28px rgba(15, 23, 42, 0.045);
}

.nav-inner {
  /* 苹果式收窄导航带：内容集中在中间，两侧对称留白 */
  max-width: 1100px;
}

.nav-links {
  gap: clamp(0.55rem, 0.9vw, 1.05rem);
}

.nav-links a {
  font-size: 0.78rem;
}

#nav::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: -1px;
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(0,113,227,0.48), rgba(33,212,253,0.42), rgba(123,97,255,0.28), transparent);
  pointer-events: none;
}

.nav-logo {
  position: relative;
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  color: var(--text);
}

.nav-logo::before {
  content: "";
  position: relative;
  z-index: 2;
  width: 24px;
  height: 24px;
  flex: 0 0 24px;
  border-radius: 8px;
  background: url("skyquest-nav-logo.png?v=1783606121") center / contain no-repeat;
  filter: saturate(1.18) drop-shadow(0 0 9px rgba(33,212,253,0.42));
  animation: logoPulse 3.2s ease-in-out infinite;
}

.nav-logo::after {
  content: "";
  position: absolute;
  left: -6px;
  top: 50%;
  width: 36px;
  height: 36px;
  margin-top: -18px;
  border-radius: 50%;
  z-index: 1;
  pointer-events: none;
  background: conic-gradient(from 0deg, transparent 0%, var(--nav-accent-cyan) 18%, transparent 38%, var(--nav-accent-violet) 62%, transparent 82%);
  filter: blur(5px);
  opacity: 0.55;
  animation: logoSpin 5s linear infinite;
}

.nav-links a,
.nav-dropdown > a {
  position: relative;
  display: inline-flex;
  align-items: center;
  min-height: 30px;
  color: rgba(29,29,31,0.66);
  transition: color 0.18s ease, transform 0.18s ease;
}

.nav-links a::after,
.nav-dropdown > a::after {
  content: "";
  position: absolute;
  left: 50%;
  right: 50%;
  bottom: 0;
  height: 2px;
  border-radius: 999px;
  background: linear-gradient(90deg, var(--nav-accent-blue), var(--nav-accent-cyan));
  box-shadow: 0 0 10px rgba(33,212,253,0.36);
  transition: left 0.2s ease, right 0.2s ease, opacity 0.2s ease;
  opacity: 0;
}

.nav-links a:hover,
.nav-links a.nav-active,
.nav-dropdown:hover > a,
.nav-dropdown.nav-active > a {
  color: var(--text);
}

.nav-links a:hover::after,
.nav-links a.nav-active::after,
.nav-dropdown:hover > a::after,
.nav-dropdown.nav-active > a::after {
  left: 0;
  right: 0;
  opacity: 1;
}

.nav-dropdown-menu {
  top: calc(100% + 0.55rem);
  left: 50%;
  min-width: 220px;
  padding: 0.55rem;
  border-radius: 18px;
  background:
    radial-gradient(circle at 12% 0%, rgba(33,212,253,0.10), transparent 34%),
    linear-gradient(180deg, #ffffff, #f8fbff);
  border: 1px solid rgba(0,113,227,0.13);
  box-shadow: 0 22px 54px rgba(15,23,42,0.14), 0 0 0 1px rgba(255,255,255,0.78) inset;
  transform: translate(-50%, -8px);
}

.nav-dropdown:hover .nav-dropdown-menu,
.nav-dropdown:focus-within .nav-dropdown-menu {
  transform: translate(-50%, 0);
}

.nav-dropdown-menu::before {
  content: "";
  position: absolute;
  top: -6px;
  left: 50%;
  width: 12px;
  height: 12px;
  background: rgba(255,255,255,0.98);
  border-left: 1px solid rgba(0,113,227,0.12);
  border-top: 1px solid rgba(0,113,227,0.12);
  transform: translateX(-50%) rotate(45deg);
}

.nav-dropdown-menu a {
  position: relative;
  display: flex;
  align-items: center;
  min-height: 38px;
  padding: 0.58rem 0.78rem 0.58rem 1.85rem;
  border-radius: 12px;
  color: var(--text-secondary);
  font-weight: 500;
}

.nav-dropdown-menu a::before {
  content: "";
  position: absolute;
  left: 0.78rem;
  top: 50%;
  width: 6px;
  height: 6px;
  border-radius: 999px;
  background: linear-gradient(135deg, var(--nav-accent-blue), var(--nav-accent-cyan));
  box-shadow: 0 0 10px rgba(33,212,253,0.42);
  transform: translateY(-50%);
}

.nav-dropdown-menu a::after {
  display: none;
}

.nav-dropdown-menu a:hover,
.nav-dropdown-menu a.nav-active {
  background: linear-gradient(90deg, rgba(0,113,227,0.08), rgba(33,212,253,0.08));
  color: var(--text);
}

.lang-switch {
  background: linear-gradient(180deg, #fff, #f7f9fc);
  border-color: rgba(0,113,227,0.12);
  box-shadow: 0 1px 2px rgba(15,23,42,0.04);
}

.lang-switch:hover {
  border-color: rgba(0,113,227,0.28);
  box-shadow: 0 6px 18px rgba(0,113,227,0.08);
}

.nav-cta {
  background: linear-gradient(135deg, var(--nav-accent-blue), #008cff 58%, var(--nav-accent-cyan));
  box-shadow: 0 10px 22px rgba(0,113,227,0.22);
}

.nav-cta:hover {
  background: linear-gradient(135deg, #006bd6, #008cff 52%, #17c9f5);
  transform: translateY(-1px);
  box-shadow: 0 14px 28px rgba(0,113,227,0.28);
}

.hamburger span {
  background: linear-gradient(90deg, var(--nav-accent-blue), var(--nav-accent-cyan));
}

.mobile-nav-overlay {
  background:
    linear-gradient(180deg, rgba(255,255,255,0.98), rgba(247,251,255,0.98)),
    radial-gradient(circle at 18% 0%, rgba(33,212,253,0.14), transparent 34%);
}

.mobile-nav-overlay a.nav-active {
  color: var(--nav-accent-blue);
}

.footer-brand {
  position: relative;
  /* 竖排锁定版式：发光 S 图标在上，SKYQUEST 字标居中在下，天问智能副标收尾 */
  display: inline-flex;
  flex-direction: column;
  align-items: center;
  gap: 0.5rem;
  font-weight: 700;
  color: var(--text);
}

.footer-brand::before {
  content: "";
  position: absolute;
  left: calc(50% - 40px);
  top: -8px;
  width: 80px;
  height: 80px;
  border-radius: 50%;
  z-index: 1;
  pointer-events: none;
  background: conic-gradient(from 0deg, transparent 0%, var(--nav-accent-cyan) 18%, transparent 38%, var(--nav-accent-violet) 62%, transparent 82%);
  filter: blur(9px);
  opacity: 0.5;
  animation: logoSpin 5s linear infinite;
}

.footer-brand img {
  position: relative;
  z-index: 2;
  width: 64px;
  height: 64px;
  object-fit: contain;
  flex: 0 0 64px;
  filter: saturate(1.18) drop-shadow(0 0 10px rgba(33,212,253,0.22));
  animation: logoPulse 3.2s ease-in-out infinite;
}

.footer-brand-en {
  display: inline-block;
  position: relative;
  z-index: 2;
  line-height: 1.1;
  font-size: 1.05rem;
  letter-spacing: 0.34em;
  margin-right: -0.34em;
  background: linear-gradient(110deg, var(--text) 38%, var(--nav-accent-blue) 48%, var(--nav-accent-cyan) 52%, var(--nav-accent-violet) 56%, var(--text) 66%);
  background-size: 250% 100%;
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  color: transparent;
  animation: brandShimmer 4.5s ease-in-out infinite;
}

.footer-brand-zh {
  display: inline-block;
  position: relative;
  z-index: 2;
  font-size: 0.78rem;
  letter-spacing: 0.3em;
  margin-right: -0.3em;
  font-weight: 500;
  background: linear-gradient(110deg, var(--text) 38%, var(--nav-accent-blue) 48%, var(--nav-accent-cyan) 52%, var(--nav-accent-violet) 56%, var(--text) 66%);
  background-size: 250% 100%;
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  color: transparent;
  animation: brandShimmer 4.5s ease-in-out infinite;
}

/* The footer is an information-dense area. Use one calm, prominent contact
   unit instead of making the brand mark compete with the navigation links. */
.footer-contact {
  display: flex;
  align-items: center;
  gap: 1rem;
  padding: 0.85rem 0.95rem 0.85rem 1.15rem;
  border: 1px solid rgba(0,113,227,0.13);
  border-radius: 14px;
  background: rgba(255,255,255,0.78);
  box-shadow: 0 10px 24px rgba(15,23,42,0.05);
}

.footer-contact-label {
  display: block;
  font-size: 0.7rem;
  color: var(--text-tertiary);
  letter-spacing: 0.08em;
  font-weight: 650;
}

.footer-contact-phone {
  display: block;
  margin: 0.28rem 0;
  color: var(--text);
  font-size: 1.05rem;
  font-weight: 650;
  letter-spacing: 0.01em;
}

.footer-contact-hint {
  margin: 0;
  color: var(--text-secondary);
  font-size: 0.76rem;
  line-height: 1.45;
}

.footer-qr {
  display: block;
  width: 118px;
  height: 118px;
  object-fit: contain;
  border-radius: 8px;
  background: #fff;
}

footer .footer-col h4 {
  color: #5f6672;
}

footer .footer-col a {
  color: #626a76;
}

footer .footer-col a:hover {
  color: var(--nav-accent-blue);
}

/* A light sweep travelling across the wordmark, tech-badge style. */
@keyframes brandShimmer {
  0%, 12% { background-position: 115% 0; }
  55%, 100% { background-position: -115% 0; }
}

/* Covers the hamburger-menu range (up to 900px in each page's inline styles).
   Kept separate from the 768px block below so the mobile-nav-overlay dropdown
   works whenever the hamburger is visible, not just under 768px. */
@media (max-width: 1180px) {
  .mobile-nav-overlay .nav-dropdown-menu {
    position: static;
    visibility: visible;
    opacity: 1;
    transform: none;
    box-shadow: none;
    border-radius: 14px;
    margin: 0.25rem 0 0.75rem;
    min-width: 0;
  }

  .mobile-nav-overlay .nav-dropdown-menu::before {
    display: none;
  }
}

/* The complete desktop IA has nine labels plus a language switch and CTA.
   At intermediate widths, a clean menu is clearer than squeezing controls. */
@media (max-width: 1180px) {
  .nav-links {
    display: none;
  }

  .hamburger {
    display: flex;
  }
}

/* The phone number is already on the "致电" CTA button — the plain-text
   tel: link in nav-links duplicated it, so it's hidden at every width. */
.nav-links a[href^="tel:"] {
  display: none;
}

@media (max-width: 768px) {
  .nav-logo::before {
    width: 22px;
    height: 22px;
    flex-basis: 22px;
  }

  .footer-contact {
    justify-content: space-between;
  }
}

/* 品牌锁定版式在品牌块内水平居中：LOGO 悬于描述文字正上方 */
.footer-brand-block {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
}

.footer-brand-block .footer-desc {
  text-align: center;
  /* 两行长度均衡，居中版式才工整 */
  text-wrap: balance;
}


/* ===== AI超市 nested submenu (行业方案 flyout) ===== */
.nav-subdrop { position: relative; }
.nav-subdrop > a { cursor: default; }

.nav-dropdown-menu .nav-subdrop > a::after {
  content: '\203A';
  display: inline-block;
  position: static;
  margin-left: auto;
  height: auto;
  background: none;
  box-shadow: none;
  opacity: 0.65;
  color: var(--text-tertiary);
  font-size: 1.05rem;
  line-height: 1;
  padding-left: 0.6rem;
  transition: none;
}

.nav-subdrop-menu {
  position: absolute;
  left: calc(100% + 0.35rem);
  top: -0.55rem;
  z-index: 120;
  min-width: 130px;
  padding: 0.55rem;
  border-radius: 18px;
  background:
    radial-gradient(circle at 12% 0%, rgba(33,212,253,0.10), transparent 34%),
    linear-gradient(180deg, #ffffff, #f8fbff);
  border: 1px solid rgba(0,113,227,0.13);
  box-shadow: 0 22px 54px rgba(15,23,42,0.14), 0 0 0 1px rgba(255,255,255,0.78) inset;
  opacity: 0;
  visibility: hidden;
  transform: translateX(-6px);
  transition: all 0.2s ease;
}

.nav-subdrop:hover > .nav-subdrop-menu,
.nav-subdrop:focus-within > .nav-subdrop-menu {
  opacity: 1;
  visibility: visible;
  transform: translateX(0);
}

/* Inside the hamburger overlay the flyout renders inline, indented. */
.mobile-nav-overlay .nav-subdrop-menu {
  position: static;
  visibility: visible;
  opacity: 1;
  transform: none;
  box-shadow: none;
  border: none;
  background: none;
  padding: 0 0 0 1.1rem;
  min-width: 0;
}


/* ===== Content protection: disable selection, image drag and printing ===== */
body {
  -webkit-user-select: none;
  -moz-user-select: none;
  -ms-user-select: none;
  user-select: none;
  -webkit-touch-callout: none;
}

input,
textarea,
[contenteditable="true"] {
  -webkit-user-select: text;
  -moz-user-select: text;
  -ms-user-select: text;
  user-select: text;
}

img {
  -webkit-user-drag: none;
  user-drag: none;
}

@media print {
  body { display: none !important; }
}