/* ===================================
   朴新教育成都学校官网 - 前台样式
   Frontend Styles v5.0
   =================================== */

/* === 顶部导航栏 === */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: var(--z-fixed);
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--border-light);
  transition: all var(--transition-base);
}

.site-header.scrolled {
  box-shadow: var(--shadow-md);
}

/* 顶部联系栏 */
.header-topbar {
  background: linear-gradient(135deg, var(--color-primary-600), var(--color-primary-700));
  color: white;
  font-size: var(--text-sm);
  padding: var(--space-2) 0;
}

.topbar-inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.topbar-left {
  display: flex;
  align-items: center;
  gap: var(--space-4);
}

.topbar-time {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  opacity: 0.9;
}

.topbar-right {
  display: flex;
  align-items: center;
  gap: var(--space-4);
}

.topbar-phone {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  color: white;
  font-weight: var(--font-semibold);
}

.topbar-phone:hover {
  color: var(--color-primary-100);
}

.topbar-btn {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-1) var(--space-3);
  background: var(--color-accent-500);
  color: white;
  border-radius: var(--radius-md);
  font-weight: var(--font-medium);
  font-size: var(--text-sm);
  transition: all var(--transition-fast);
}

.topbar-btn:hover {
  background: var(--color-accent-600);
  color: white;
  transform: translateY(-1px);
}

/* 主导航 */
.header-main {
  padding: var(--space-3) 0;
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-6);
}

/* Logo */
.site-logo {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  color: var(--text-primary);
  text-decoration: none;
}

.logo-icon {
  width: 48px;
  height: 48px;
  background: linear-gradient(135deg, var(--color-primary-500), var(--color-primary-600));
  border-radius: var(--radius-lg);
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  font-size: var(--text-xl);
}

.logo-text {
  display: flex;
  flex-direction: column;
}

.logo-name {
  font-size: var(--text-xl);
  font-weight: var(--font-bold);
  color: var(--text-primary);
  line-height: 1.2;
}

.logo-slogan {
  font-size: var(--text-xs);
  color: var(--text-muted);
  line-height: 1.2;
}

/* 导航 */
.site-nav {
  display: flex;
  align-items: center;
  gap: var(--space-1);
}

.nav-link {
  display: flex;
  align-items: center;
  gap: var(--space-1);
  padding: var(--space-3) var(--space-4);
  color: var(--text-secondary);
  font-weight: var(--font-medium);
  border-radius: var(--radius-md);
  transition: all var(--transition-fast);
}

.nav-link:hover,
.nav-link.active {
  color: var(--color-primary-500);
  background: var(--color-primary-50);
}

.nav-item {
  position: relative;
}

.nav-item.has-dropdown .nav-link {
  padding-right: var(--space-6);
}

.nav-item.has-dropdown .nav-link i {
  position: absolute;
  right: var(--space-2);
  font-size: var(--text-xs);
  transition: transform var(--transition-fast);
}

.nav-item:hover .nav-link i {
  transform: rotate(180deg);
}

/* 下拉菜单 */
.nav-dropdown {
  position: absolute;
  top: 100%;
  left: 50%;
  transform: translateX(-50%) translateY(10px);
  min-width: 240px;
  background: white;
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-xl);
  padding: var(--space-2);
  opacity: 0;
  visibility: hidden;
  transition: all var(--transition-fast);
  z-index: var(--z-dropdown);
}

.nav-item:hover .nav-dropdown {
  opacity: 1;
  visibility: visible;
  transform: translateX(-50%) translateY(0);
}

.dropdown-inner {
  display: flex;
  flex-direction: column;
  gap: var(--space-1);
}

.dropdown-item {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  padding: var(--space-3) var(--space-4);
  border-radius: var(--radius-lg);
  transition: all var(--transition-fast);
}

.dropdown-item:hover {
  background: var(--color-primary-50);
}

.dropdown-item i {
  width: 36px;
  height: 36px;
  background: var(--color-primary-100);
  color: var(--color-primary-600);
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: var(--text-sm);
}

.dropdown-item-text {
  display: flex;
  flex-direction: column;
}

.dropdown-item-text strong {
  font-weight: var(--font-semibold);
  color: var(--text-primary);
}

.dropdown-item-text small {
  font-size: var(--text-xs);
  color: var(--text-muted);
}

/* 操作按钮 */
.header-actions {
  display: flex;
  align-items: center;
  gap: var(--space-4);
}

.header-phone {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  color: var(--color-primary-600);
  font-weight: var(--font-semibold);
  font-size: var(--text-lg);
}

/* 移动端菜单按钮 */
.mobile-menu-btn {
  display: none;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  width: 44px;
  height: 44px;
  background: none;
  border: none;
  cursor: pointer;
  gap: 6px;
}

.hamburger-line {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--text-primary);
  border-radius: 2px;
  transition: all var(--transition-fast);
}

.mobile-menu-btn.active .hamburger-line:nth-child(1) {
  transform: translateY(8px) rotate(45deg);
}

.mobile-menu-btn.active .hamburger-line:nth-child(2) {
  opacity: 0;
}

.mobile-menu-btn.active .hamburger-line:nth-child(3) {
  transform: translateY(-8px) rotate(-45deg);
}

/* 移动端导航 */
.mobile-nav-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.5);
  opacity: 0;
  visibility: hidden;
  transition: all var(--transition-fast);
  z-index: var(--z-modal-backdrop);
}

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

.mobile-nav {
  position: fixed;
  top: 0;
  right: 0;
  bottom: 0;
  width: 320px;
  max-width: 90vw;
  background: white;
  transform: translateX(100%);
  transition: transform var(--transition-base);
  z-index: var(--z-modal);
  display: flex;
  flex-direction: column;
}

.mobile-nav.active {
  transform: translateX(0);
}

.mobile-nav-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--space-4);
  border-bottom: 1px solid var(--border-light);
}

.mobile-nav-logo {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  font-weight: var(--font-bold);
  color: var(--text-primary);
}

.mobile-nav-logo i {
  color: var(--color-primary-500);
}

.mobile-nav-close {
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: none;
  border: none;
  cursor: pointer;
  color: var(--text-secondary);
  border-radius: var(--radius-md);
  transition: all var(--transition-fast);
}

.mobile-nav-close:hover {
  background: var(--color-gray-100);
  color: var(--text-primary);
}

.mobile-nav-search {
  padding: var(--space-4);
  border-bottom: 1px solid var(--border-light);
  display: flex;
  gap: var(--space-2);
}

.mobile-nav-search input {
  flex: 1;
  padding: var(--space-3);
  border: 1px solid var(--border-default);
  border-radius: var(--radius-md);
  font-size: var(--text-base);
}

.mobile-nav-search button {
  width: 44px;
  height: 44px;
  background: var(--color-primary-500);
  color: white;
  border: none;
  border-radius: var(--radius-md);
  cursor: pointer;
}

.mobile-nav-links {
  flex: 1;
  overflow-y: auto;
  padding: var(--space-2);
}

.mobile-nav-link {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  padding: var(--space-4);
  color: var(--text-primary);
  font-weight: var(--font-medium);
  border-radius: var(--radius-lg);
  transition: all var(--transition-fast);
}

.mobile-nav-link:hover,
.mobile-nav-link.active {
  background: var(--color-primary-50);
  color: var(--color-primary-600);
}

.mobile-nav-link i {
  width: 24px;
  color: var(--color-primary-500);
}

.mobile-nav-link.has-arrow {
  justify-content: space-between;
}

.mobile-nav-link .arrow {
  transition: transform var(--transition-fast);
}

.mobile-nav-group.active .arrow {
  transform: rotate(90deg);
}

.mobile-nav-sub {
  display: none;
  padding-left: var(--space-12);
}

.mobile-nav-group.active .mobile-nav-sub {
  display: block;
}

.mobile-nav-sub a {
  display: block;
  padding: var(--space-3) var(--space-4);
  color: var(--text-secondary);
  font-size: var(--text-sm);
}

.mobile-nav-sub a:hover {
  color: var(--color-primary-500);
}

.mobile-nav-footer {
  padding: var(--space-4);
  border-top: 1px solid var(--border-light);
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
}

.mobile-phone-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  padding: var(--space-3);
  color: var(--color-primary-600);
  font-weight: var(--font-semibold);
  border: 1.5px solid var(--color-primary-200);
  border-radius: var(--radius-lg);
}

/* 响应式 */
@media (max-width: 1024px) {
  .site-nav,
  .header-phone {
    display: none;
  }
  
  .mobile-menu-btn {
    display: flex;
  }
}

@media (max-width: 768px) {
  .header-topbar {
    display: none;
  }
  
  .logo-icon {
    width: 40px;
    height: 40px;
    font-size: var(--text-lg);
  }
  
  .logo-name {
    font-size: var(--text-lg);
  }
  
  .logo-slogan {
    display: none;
  }
}

/* === 底部 === */
.site-footer {
  background: var(--bg-dark);
  color: white;
  padding-top: var(--space-20);
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1.5fr;
  gap: var(--space-12);
  padding-bottom: var(--space-12);
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.footer-logo {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  margin-bottom: var(--space-4);
}

.footer-logo-icon {
  width: 48px;
  height: 48px;
  background: linear-gradient(135deg, var(--color-primary-500), var(--color-primary-600));
  border-radius: var(--radius-lg);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: var(--text-xl);
}

.footer-logo span {
  font-size: var(--text-xl);
  font-weight: var(--font-bold);
}

.footer-desc {
  color: rgba(255, 255, 255, 0.7);
  line-height: var(--leading-relaxed);
  margin-bottom: var(--space-6);
}

.footer-social {
  display: flex;
  gap: var(--space-3);
}

.footer-social a {
  width: 40px;
  height: 40px;
  background: rgba(255, 255, 255, 0.1);
  border-radius: var(--radius-full);
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  transition: all var(--transition-fast);
}

.footer-social a:hover {
  background: var(--color-primary-500);
  transform: translateY(-2px);
}

.footer-col h4 {
  font-size: var(--text-lg);
  font-weight: var(--font-semibold);
  margin-bottom: var(--space-6);
  color: white;
}

.footer-links {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
}

.footer-links a {
  color: rgba(255, 255, 255, 0.7);
  transition: all var(--transition-fast);
}

.footer-links a:hover {
  color: white;
  padding-left: var(--space-2);
}

.footer-contact {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
}

.footer-contact li {
  display: flex;
  align-items: flex-start;
  gap: var(--space-3);
  color: rgba(255, 255, 255, 0.7);
}

.footer-contact i {
  color: var(--color-primary-400);
  margin-top: 4px;
}

.footer-bottom {
  padding: var(--space-6) 0;
}

.footer-bottom-inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: var(--space-4);
}

.copyright {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  color: rgba(255, 255, 255, 0.5);
  font-size: var(--text-sm);
}

.copyright a {
  color: rgba(255, 255, 255, 0.5);
}

.copyright a:hover {
  color: white;
}

.footer-bottom-links {
  display: flex;
  gap: var(--space-6);
}

.footer-bottom-links a {
  color: rgba(255, 255, 255, 0.5);
  font-size: var(--text-sm);
}

.footer-bottom-links a:hover {
  color: white;
}

@media (max-width: 1024px) {
  .footer-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 768px) {
  .footer-grid {
    grid-template-columns: 1fr;
    gap: var(--space-8);
  }
  
  .footer-bottom-inner {
    flex-direction: column;
    text-align: center;
  }
}

/* === AI客服 === */
.ai-chat {
  position: fixed;
  bottom: var(--space-6);
  right: var(--space-6);
  z-index: var(--z-fixed);
}

.ai-chat-toggle {
  width: 60px;
  height: 60px;
  background: linear-gradient(135deg, var(--color-primary-500), var(--color-primary-600));
  border: none;
  border-radius: var(--radius-full);
  color: white;
  font-size: var(--text-xl);
  cursor: pointer;
  box-shadow: var(--shadow-lg);
  transition: all var(--transition-fast);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 2px;
}

.ai-chat-toggle:hover {
  transform: scale(1.1);
  box-shadow: var(--shadow-xl);
}

.ai-chat-toggle span {
  font-size: 10px;
  font-weight: var(--font-medium);
}

.ai-chat-window {
  position: absolute;
  bottom: 80px;
  right: 0;
  width: 360px;
  max-width: calc(100vw - var(--space-6) * 2);
  background: white;
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-2xl);
  overflow: hidden;
  opacity: 0;
  visibility: hidden;
  transform: translateY(20px) scale(0.95);
  transition: all var(--transition-fast);
}

.ai-chat-window.active {
  opacity: 1;
  visibility: visible;
  transform: translateY(0) scale(1);
}

.ai-chat-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--space-4);
  background: linear-gradient(135deg, var(--color-primary-500), var(--color-primary-600));
  color: white;
}

.ai-chat-title {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  font-weight: var(--font-semibold);
}

.ai-chat-close {
  width: 32px;
  height: 32px;
  background: rgba(255, 255, 255, 0.2);
  border: none;
  border-radius: var(--radius-md);
  color: white;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all var(--transition-fast);
}

.ai-chat-close:hover {
  background: rgba(255, 255, 255, 0.3);
}

.ai-chat-body {
  height: 360px;
  overflow-y: auto;
  padding: var(--space-4);
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
}

.ai-message {
  display: flex;
  gap: var(--space-3);
}

.ai-avatar {
  width: 36px;
  height: 36px;
  background: linear-gradient(135deg, var(--color-primary-500), var(--color-primary-600));
  border-radius: var(--radius-full);
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  font-size: var(--text-sm);
  flex-shrink: 0;
}

.ai-content {
  background: var(--color-gray-100);
  padding: var(--space-3) var(--space-4);
  border-radius: var(--radius-lg);
  border-top-left-radius: 4px;
  font-size: var(--text-sm);
  line-height: var(--leading-relaxed);
  color: var(--text-primary);
  white-space: pre-line;
}

.user-message {
  flex-direction: row-reverse;
}

.user-message .ai-avatar {
  background: var(--color-accent-500);
}

.user-message .ai-content {
  background: var(--color-primary-500);
  color: white;
  border-top-left-radius: var(--radius-lg);
  border-top-right-radius: 4px;
}

.ai-chat-input {
  display: flex;
  gap: var(--space-2);
  padding: var(--space-4);
  border-top: 1px solid var(--border-light);
}

.ai-chat-input input {
  flex: 1;
  padding: var(--space-3) var(--space-4);
  border: 1px solid var(--border-default);
  border-radius: var(--radius-full);
  font-size: var(--text-base);
  outline: none;
  transition: all var(--transition-fast);
}

.ai-chat-input input:focus {
  border-color: var(--color-primary-500);
  box-shadow: 0 0 0 3px var(--color-primary-100);
}

.ai-chat-input button {
  width: 44px;
  height: 44px;
  background: var(--color-primary-500);
  border: none;
  border-radius: var(--radius-full);
  color: white;
  cursor: pointer;
  transition: all var(--transition-fast);
}

.ai-chat-input button:hover {
  background: var(--color-primary-600);
}

@media (max-width: 480px) {
  .ai-chat {
    bottom: var(--space-4);
    right: var(--space-4);
  }
  
  .ai-chat-window {
    width: calc(100vw - var(--space-4) * 2);
  }
}

/* === 主内容区域 === */
.site-main {
  padding-top: 120px;
}

@media (max-width: 768px) {
  .site-main {
    padding-top: 72px;
  }
}