/* ========================================
   导航栏样式 - 玻璃态设计
   ======================================== */

.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  padding: 20px 0;
  transition: all var(--t-base);
}

.navbar.scrolled {
  background: rgba(255, 255, 255, 0.85);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  padding: 12px 0;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.06);
  border-bottom: 1px solid rgba(5, 150, 105, 0.1);
}

.navbar-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 var(--container-pad);
}

.navbar-logo {
  display: flex;
  align-items: center;
  gap: 12px;
  font-family: var(--font-display);
  font-size: 1.4rem;
  font-weight: 800;
  color: var(--color-white);
  transition: color var(--t-base);
}

.navbar.scrolled .navbar-logo {
  color: var(--color-forest);
}

.logo-icon {
  width: 42px;
  height: 42px;
  background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-emerald) 100%);
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  font-weight: 800;
  font-size: 1.1rem;
  position: relative;
  overflow: hidden;
}

.logo-icon::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, transparent 40%, rgba(255, 255, 255, 0.3) 50%, transparent 60%);
  background-size: 200% 200%;
  animation: shimmer 3s linear infinite;
}

.navbar-menu {
  display: flex;
  align-items: center;
  gap: 8px;
}

.navbar-menu a {
  padding: 8px 16px;
  font-size: 0.95rem;
  font-weight: 500;
  color: rgba(255, 255, 255, 0.85);
  border-radius: var(--radius-full);
  transition: all var(--t-fast);
  position: relative;
}

.navbar.scrolled .navbar-menu a {
  color: var(--color-gray-700);
}

.navbar-menu a:hover,
.navbar-menu a.active {
  background: rgba(255, 255, 255, 0.15);
  color: var(--color-white);
}

.navbar.scrolled .navbar-menu a:hover,
.navbar.scrolled .navbar-menu a.active {
  background: var(--color-bg-soft);
  color: var(--color-primary);
}

.navbar-cta {
  display: flex;
  align-items: center;
  gap: 12px;
}

.navbar-phone {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 0.9rem;
  color: rgba(255, 255, 255, 0.9);
  font-weight: 600;
}

.navbar.scrolled .navbar-phone {
  color: var(--color-primary);
}

.mobile-toggle {
  display: none;
  width: 44px;
  height: 44px;
  border-radius: 12px;
  background: rgba(255, 255, 255, 0.1);
  color: var(--color-white);
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: all var(--t-fast);
}

.navbar.scrolled .mobile-toggle {
  background: var(--color-bg-soft);
  color: var(--color-primary);
}

.mobile-toggle span {
  display: block;
  width: 22px;
  height: 2px;
  background: currentColor;
  position: relative;
  transition: all var(--t-base);
}

.mobile-toggle span::before,
.mobile-toggle span::after {
  content: '';
  position: absolute;
  width: 100%;
  height: 100%;
  background: currentColor;
  left: 0;
  transition: all var(--t-base);
}

.mobile-toggle span::before { top: -7px; }
.mobile-toggle span::after { top: 7px; }

.mobile-toggle.active span {
  background: transparent;
}

.mobile-toggle.active span::before {
  top: 0;
  transform: rotate(45deg);
}

.mobile-toggle.active span::after {
  top: 0;
  transform: rotate(-45deg);
}

/* 移动端菜单 */
.mobile-menu {
  position: fixed;
  top: 0;
  right: -100%;
  width: 320px;
  max-width: 85vw;
  height: 100vh;
  background: linear-gradient(180deg, var(--color-forest) 0%, var(--color-deep) 100%);
  z-index: 99;
  padding: 100px 32px 32px;
  transition: right var(--t-base);
  overflow-y: auto;
}

.mobile-menu.active {
  right: 0;
  box-shadow: -20px 0 40px rgba(0, 0, 0, 0.2);
}

.mobile-menu a {
  display: block;
  padding: 16px 0;
  color: var(--color-white);
  font-size: 1.1rem;
  font-weight: 500;
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
  transition: padding-left var(--t-base), color var(--t-base);
}

.mobile-menu a:hover {
  padding-left: 12px;
  color: var(--color-bright);
}

.mobile-menu a.active {
  color: var(--color-bright);
}

.mobile-menu-btn {
  margin-top: 32px;
  width: 100%;
}

.mobile-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.5);
  opacity: 0;
  visibility: hidden;
  z-index: 98;
  transition: opacity var(--t-base), visibility var(--t-base);
}

.mobile-overlay.active {
  opacity: 1;
  visibility: visible;
}

/* 页脚 */
.footer {
  background: var(--color-deep);
  color: var(--color-pale);
  padding: 80px 0 32px;
  position: relative;
  overflow: hidden;
}

.footer::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent 0%, var(--color-primary) 50%, transparent 100%);
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr 1fr 1.2fr;
  gap: 48px;
  margin-bottom: 60px;
}

.footer-brand {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.footer-logo {
  display: flex;
  align-items: center;
  gap: 12px;
  font-family: var(--font-display);
  font-size: 1.4rem;
  font-weight: 800;
  color: var(--color-white);
}

.footer-desc {
  color: var(--color-gray-400);
  font-size: 0.95rem;
  line-height: 1.7;
}

.footer-social {
  display: flex;
  gap: 12px;
  margin-top: 8px;
}

.footer-social a {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(255, 255, 255, 0.1);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-pale);
  transition: all var(--t-base);
}

.footer-social a:hover {
  background: var(--color-primary);
  color: var(--color-white);
  border-color: var(--color-primary);
  transform: translateY(-4px);
}

.footer-col h4 {
  color: var(--color-white);
  font-size: 1rem;
  margin-bottom: 20px;
  font-weight: 600;
}

.footer-col ul {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.footer-col a {
  color: var(--color-gray-400);
  font-size: 0.9rem;
  transition: color var(--t-fast);
}

.footer-col a:hover {
  color: var(--color-bright);
  padding-left: 4px;
}

.footer-contact {
  display: flex;
  flex-direction: column;
  gap: 12px;
  font-size: 0.9rem;
  color: var(--color-gray-400);
}

.footer-contact-item {
  display: flex;
  align-items: flex-start;
  gap: 8px;
}

.footer-contact-item svg {
  flex-shrink: 0;
  margin-top: 2px;
  color: var(--color-primary);
}

.footer-bottom {
  padding-top: 32px;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 16px;
  font-size: 0.85rem;
  color: var(--color-gray-500);
}

.footer-bottom a:hover {
  color: var(--color-bright);
}