/**
 * 爱点亮 - 统一布局样式
 * 与首页样式保持一致
 */

/* ============================================
   CSS 变量定义
   ============================================ */
:root {
  --surface-primary: #F5F3F0;
  --surface-dark: #1A1A1A;
  --surface-dark-secondary: #222222;
  --surface-card: #2a2a2a;
  --accent-gold: #C9A962;
  --accent-gold-light: #D4B978;
  --accent-gold-dark: #A68B4B;
  --text-primary: #333333;
  --text-secondary: #666666;
  --text-muted: #888888;
  --text-inverse: #FFFFFF;
  --font-primary: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", -apple-system, BlinkMacSystemFont, sans-serif;
  --space-xs: 8px;
  --space-sm: 16px;
  --space-md: 24px;
  --space-lg: 48px;
  --space-xl: 80px;
  --space-2xl: 120px;
  --container-padding: 5vw;
  --transition-fast: 0.2s ease;
  --transition-base: 0.3s ease;
}

/* ============================================
   基础重置
   ============================================ */
.unified-layout * {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

.unified-layout {
  font-family: var(--font-primary);
  color: var(--text-primary);
  background: var(--surface-dark);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

/* ============================================
   统一导航栏
   ============================================ */
.unified-nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  background: rgba(26, 26, 26, 0.98);
  backdrop-filter: blur(20px);
  border-bottom: 1px solid rgba(201, 169, 98, 0.1);
}

.unified-nav-inner {
  max-width: 1400px;
  margin: 0 auto;
  padding: 16px var(--container-padding);
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.nav-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
  z-index: 1001;
}

.logo-icon {
  color: var(--accent-gold);
  display: flex;
  align-items: center;
}

.logo-text {
  font-size: 22px;
  font-weight: 600;
  letter-spacing: 0.15em;
  color: var(--text-inverse);
}

/* 桌面端导航菜单 */
.nav-menu-full {
  display: flex;
  gap: var(--space-lg);
  list-style: none;
}

.nav-menu-full a {
  color: var(--text-inverse);
  text-decoration: none;
  font-size: 14px;
  font-weight: 400;
  letter-spacing: 0.05em;
  position: relative;
  padding: 6px 0;
  transition: color var(--transition-fast);
}

.nav-menu-full a::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 1px;
  background: var(--accent-gold);
  transition: width var(--transition-base);
}

.nav-menu-full a:hover {
  color: var(--accent-gold);
}

.nav-menu-full a:hover::after {
  width: 100%;
}

.nav-menu-full a.active {
  color: var(--accent-gold);
}

.nav-menu-full a.active::after {
  width: 100%;
}

.nav-actions {
  display: flex;
  align-items: center;
  gap: var(--space-md);
}

.nav-phone {
  color: var(--accent-gold);
  text-decoration: none;
  font-size: 14px;
  letter-spacing: 0.05em;
}

.nav-phone:hover {
  opacity: 0.8;
}

/* ============================================
   汉堡菜单按钮
   ============================================ */
.hamburger {
  display: none;
  flex-direction: column;
  justify-content: space-between;
  width: 28px;
  height: 20px;
  cursor: pointer;
  z-index: 1001;
  padding: 0;
  background: none;
  border: none;
}

.hamburger span {
  display: block;
  width: 100%;
  height: 2px;
  background: var(--text-inverse);
  transition: all 0.35s cubic-bezier(0.68, -0.55, 0.265, 1.55);
  transform-origin: center;
}

.hamburger.active span:nth-child(1) {
  transform: translateY(9px) rotate(45deg);
}

.hamburger.active span:nth-child(2) {
  opacity: 0;
  transform: scaleX(0);
}

.hamburger.active span:nth-child(3) {
  transform: translateY(-9px) rotate(-45deg);
}

/* ============================================
   移动端全屏菜单
   ============================================ */
.mobile-menu {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100vh;
  background: rgba(26, 26, 26, 0.98);
  backdrop-filter: blur(20px);
  z-index: 999;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  opacity: 0;
  visibility: hidden;
  transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

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

.mobile-menu-list {
  list-style: none;
  text-align: center;
  padding: 0;
}

.mobile-menu-list li {
  margin: var(--space-md) 0;
  opacity: 0;
  transform: translateY(30px);
  transition: all 0.4s ease;
}

.mobile-menu.active .mobile-menu-list li {
  opacity: 1;
  transform: translateY(0);
}

.mobile-menu.active .mobile-menu-list li:nth-child(1) { transition-delay: 0.1s; }
.mobile-menu.active .mobile-menu-list li:nth-child(2) { transition-delay: 0.15s; }
.mobile-menu.active .mobile-menu-list li:nth-child(3) { transition-delay: 0.2s; }
.mobile-menu.active .mobile-menu-list li:nth-child(4) { transition-delay: 0.25s; }
.mobile-menu.active .mobile-menu-list li:nth-child(5) { transition-delay: 0.3s; }
.mobile-menu.active .mobile-menu-list li:nth-child(6) { transition-delay: 0.35s; }
.mobile-menu.active .mobile-menu-list li:nth-child(7) { transition-delay: 0.4s; }

.mobile-menu-list a {
  display: block;
  color: var(--text-inverse);
  text-decoration: none;
  font-size: 28px;
  font-weight: 300;
  letter-spacing: 0.15em;
  padding: var(--space-sm) var(--space-lg);
  transition: all 0.3s ease;
}

.mobile-menu-list a:hover {
  color: var(--accent-gold);
}

.mobile-menu-contact {
  margin-top: var(--space-xl);
  text-align: center;
  opacity: 0;
  transform: translateY(20px);
  transition: all 0.4s ease 0.4s;
}

.mobile-menu.active .mobile-menu-contact {
  opacity: 1;
  transform: translateY(0);
}

.mobile-menu-contact a {
  display: block;
  color: var(--accent-gold);
  font-size: 18px;
  text-decoration: none;
  letter-spacing: 0.1em;
  margin-top: var(--space-sm);
}

/* ============================================
   内容区域
   ============================================ */
.unified-content {
  min-height: 100vh;
  padding-top: 70px;
}

/* ============================================
   底部
   ============================================ */
.unified-footer {
  background: var(--surface-dark);
  border-top: 1px solid rgba(255, 255, 255, 0.06);
  padding: var(--space-2xl) var(--container-padding) var(--space-lg);
}

.footer-inner {
  display: grid;
  grid-template-columns: 1.5fr 2fr;
  gap: var(--space-2xl);
  padding-bottom: var(--space-xl);
  border-bottom: 1px solid rgba(255, 255, 255, 0.06);
  max-width: 1400px;
  margin: 0 auto;
}

.footer-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
  margin-bottom: var(--space-md);
}

.footer-tagline {
  font-size: 18px;
  color: var(--accent-gold);
  letter-spacing: 0.1em;
  margin-bottom: var(--space-sm);
}

.footer-desc {
  font-size: 14px;
  color: var(--text-muted);
  line-height: 1.8;
  margin-bottom: var(--space-md);
}

.footer-links {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-lg);
}

.footer-column h4 {
  font-size: 14px;
  font-weight: 500;
  color: var(--text-inverse);
  letter-spacing: 0.08em;
  margin-bottom: var(--space-md);
}

.footer-column ul {
  list-style: none;
}

.footer-column li {
  margin-bottom: var(--space-sm);
}

.footer-column a {
  font-size: 13px;
  color: var(--text-muted);
  text-decoration: none;
  transition: color var(--transition-fast);
}

.footer-column a:hover {
  color: var(--accent-gold);
}

.footer-bottom {
  padding-top: var(--space-lg);
  max-width: 1400px;
  margin: 0 auto;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.copyright {
  font-size: 12px;
  color: var(--text-muted);
}

.footer-certifications {
  display: flex;
  gap: var(--space-sm);
}

.cert-mini {
  padding: 4px 8px;
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid rgba(255, 255, 255, 0.06);
  font-size: 10px;
  color: var(--text-muted);
  letter-spacing: 0.05em;
}

/* ============================================
   响应式
   ============================================ */
@media (max-width: 1200px) {
  .footer-links {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 992px) {
  .nav-menu-full {
    display: none;
  }
  .hamburger {
    display: flex;
  }
  .nav-actions {
    display: none;
  }
  .footer-inner {
    grid-template-columns: 1fr;
  }
  .footer-links {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 768px) {
  :root {
    --container-padding: 5vw;
    --space-xl: 50px;
    --space-2xl: 70px;
  }
  
  .unified-nav-inner {
    padding: 12px var(--container-padding);
  }
  
  .logo-text {
    font-size: 18px;
  }
  
  .unified-content {
    padding-top: 60px;
  }
  
  .footer-inner {
    grid-template-columns: 1fr;
    gap: var(--space-lg);
  }
  
  .footer-links {
    grid-template-columns: repeat(2, 1fr);
    gap: var(--space-md);
  }
  
  .footer-column h4 {
    font-size: 13px;
    margin-bottom: var(--space-sm);
  }
  
  .footer-column a {
    font-size: 12px;
  }
  
  .footer-bottom {
    flex-direction: column;
    gap: var(--space-md);
    text-align: center;
  }
}

@media (max-width: 480px) {
  :root {
    --container-padding: 4vw;
  }
  
  .footer-links {
    gap: var(--space-sm);
  }
}