/*
Theme Name: SZRSzon Enterprise
Theme URI: https://szrszon.com
Author: SZRSzon
Author URI: https://szrszon.com
Description: 现代简约企业官网主题 - 高档大气，响应式设计，深色模式支持，SEO优化，丰富JavaScript交互效果
Version: 1.0.0
Requires at least: 6.0
Tested up to: 6.4
Requires PHP: 8.0
License: GPL v2 or later
License URI: https://www.gnu.org/licenses/gpl-2.0.html
Text Domain: szrszon
Tags: business, corporate, modern, responsive, dark-mode, one-page, portfolio, custom-colors, custom-logo, custom-menu, featured-images, footer-widgets, full-width-template, sticky-post, theme-options, threaded-comments, translation-ready
*/

/* ============================================================
   CSS Custom Properties (Design Tokens)
   ============================================================ */
:root {
  /* Primary Colors */
  --color-primary: #1a1a2e;
  --color-secondary: #16213e;
  --color-accent: #0f3460;
  --color-highlight: #e94560;
  --color-gold: #c9a227;

  /* Light Mode */
  --bg-primary: #ffffff;
  --bg-secondary: #f8f9fa;
  --bg-tertiary: #f0f2f5;
  --text-primary: #1a1a2e;
  --text-secondary: #4a4a6a;
  --text-muted: #8a8aaa;
  --border-color: #e8eaed;
  --shadow-color: rgba(26, 26, 46, 0.08);
  --card-bg: #ffffff;
  --nav-bg: rgba(255, 255, 255, 0.95);

  /* Typography */
  --font-primary: 'Inter', 'Noto Sans SC', -apple-system, BlinkMacSystemFont, sans-serif;
  --font-heading: 'Playfair Display', 'Noto Serif SC', Georgia, serif;
  --font-mono: 'JetBrains Mono', 'Courier New', monospace;

  /* Spacing */
  --space-xs: 0.25rem;
  --space-sm: 0.5rem;
  --space-md: 1rem;
  --space-lg: 1.5rem;
  --space-xl: 2rem;
  --space-2xl: 3rem;
  --space-3xl: 4rem;
  --space-4xl: 6rem;

  /* Border Radius */
  --radius-sm: 4px;
  --radius-md: 8px;
  --radius-lg: 12px;
  --radius-xl: 20px;
  --radius-full: 9999px;

  /* Transitions */
  --transition-fast: 0.15s ease;
  --transition-base: 0.3s ease;
  --transition-slow: 0.5s ease;
  --transition-spring: 0.4s cubic-bezier(0.34, 1.56, 0.64, 1);

  /* Shadows */
  --shadow-sm: 0 1px 3px rgba(0,0,0,0.05), 0 1px 2px rgba(0,0,0,0.08);
  --shadow-md: 0 4px 16px rgba(26, 26, 46, 0.08), 0 2px 8px rgba(26, 26, 46, 0.05);
  --shadow-lg: 0 10px 40px rgba(26, 26, 46, 0.12), 0 4px 20px rgba(26, 26, 46, 0.08);
  --shadow-xl: 0 20px 60px rgba(26, 26, 46, 0.15);
  --shadow-glow: 0 0 30px rgba(233, 69, 96, 0.3);

  /* Z-index */
  --z-below: -1;
  --z-base: 1;
  --z-dropdown: 100;
  --z-sticky: 200;
  --z-overlay: 300;
  --z-modal: 400;
  --z-toast: 500;
}

/* Dark Mode */
[data-theme="dark"] {
  --bg-primary: #0d0d1a;
  --bg-secondary: #12121f;
  --bg-tertiary: #1a1a2e;
  --text-primary: #e8e8f0;
  --text-secondary: #a8a8c0;
  --text-muted: #6a6a8a;
  --border-color: #2a2a3e;
  --shadow-color: rgba(0, 0, 0, 0.3);
  --card-bg: #16162a;
  --nav-bg: rgba(13, 13, 26, 0.95);
}

/* ============================================================
   Reset & Base
   ============================================================ */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  font-size: 16px;
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

body {
  font-family: var(--font-primary);
  font-size: 1rem;
  line-height: 1.7;
  color: var(--text-primary);
  background-color: var(--bg-primary);
  transition: background-color var(--transition-base), color var(--transition-base);
  overflow-x: hidden;
}

img, video {
  max-width: 100%;
  height: auto;
  display: block;
}

a {
  color: var(--color-highlight);
  text-decoration: none;
  transition: color var(--transition-fast);
}

a:hover { color: var(--color-gold); }

ul, ol { list-style: none; }

button {
  cursor: pointer;
  border: none;
  background: none;
  font-family: inherit;
}

input, textarea, select {
  font-family: inherit;
  font-size: inherit;
}

h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-heading);
  font-weight: 700;
  line-height: 1.3;
  color: var(--text-primary);
}

/* ============================================================
   Utility Classes
   ============================================================ */
.container {
  width: 100%;
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 var(--space-xl);
}

.container-sm { max-width: 960px; }
.container-lg { max-width: 1440px; }

.section {
  padding: var(--space-4xl) 0;
}

.section-sm {
  padding: var(--space-3xl) 0;
}

.section-header {
  text-align: center;
  margin-bottom: var(--space-3xl);
}

.section-label {
  display: inline-flex;
  align-items: center;
  gap: var(--space-sm);
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--color-highlight);
  margin-bottom: var(--space-md);
}

.section-label::before,
.section-label::after {
  content: '';
  display: block;
  width: 24px;
  height: 1px;
  background: var(--color-highlight);
}

.section-title {
  font-size: clamp(1.75rem, 4vw, 2.75rem);
  font-weight: 700;
  margin-bottom: var(--space-md);
  color: var(--text-primary);
}

.section-subtitle {
  font-size: 1.1rem;
  color: var(--text-secondary);
  max-width: 600px;
  margin: 0 auto;
}

.text-gradient {
  background: linear-gradient(135deg, var(--color-highlight), var(--color-gold));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.bg-dark-section {
  background: var(--bg-tertiary);
}

.visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

/* ============================================================
   Buttons
   ============================================================ */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-sm);
  padding: 0.75rem 2rem;
  font-size: 0.9rem;
  font-weight: 600;
  letter-spacing: 0.05em;
  border-radius: var(--radius-full);
  transition: all var(--transition-base);
  white-space: nowrap;
  position: relative;
  overflow: hidden;
}

.btn::before {
  content: '';
  position: absolute;
  inset: 0;
  background: rgba(255,255,255,0.1);
  opacity: 0;
  transition: opacity var(--transition-fast);
}

.btn:hover::before { opacity: 1; }

.btn-primary {
  background: linear-gradient(135deg, var(--color-highlight), #c73652);
  color: #ffffff;
  box-shadow: 0 4px 20px rgba(233, 69, 96, 0.35);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 30px rgba(233, 69, 96, 0.45);
  color: #ffffff;
}

.btn-secondary {
  background: transparent;
  color: var(--text-primary);
  border: 2px solid var(--border-color);
}

.btn-secondary:hover {
  border-color: var(--color-highlight);
  color: var(--color-highlight);
  transform: translateY(-2px);
}

.btn-gold {
  background: linear-gradient(135deg, var(--color-gold), #a07d1a);
  color: #ffffff;
  box-shadow: 0 4px 20px rgba(201, 162, 39, 0.35);
}

.btn-gold:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 30px rgba(201, 162, 39, 0.45);
  color: #ffffff;
}

.btn-outline-light {
  background: transparent;
  color: #ffffff;
  border: 2px solid rgba(255,255,255,0.5);
}

.btn-outline-light:hover {
  background: rgba(255,255,255,0.1);
  border-color: #ffffff;
  color: #ffffff;
}

.btn-lg {
  padding: 1rem 2.5rem;
  font-size: 1rem;
}

.btn-sm {
  padding: 0.5rem 1.25rem;
  font-size: 0.825rem;
}

.btn-icon {
  width: 44px;
  height: 44px;
  padding: 0;
  border-radius: var(--radius-full);
}

/* ============================================================
   Loading Screen
   ============================================================ */
#page-loader {
  position: fixed;
  inset: 0;
  background: var(--color-primary);
  z-index: 9999;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: var(--space-xl);
  transition: opacity 0.5s ease, visibility 0.5s ease;
}

#page-loader.loaded {
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
}

.loader-logo {
  font-family: var(--font-heading);
  font-size: 2.5rem;
  font-weight: 700;
  color: #ffffff;
  letter-spacing: 0.1em;
}

.loader-logo span {
  color: var(--color-highlight);
}

.loader-bar {
  width: 200px;
  height: 3px;
  background: rgba(255,255,255,0.15);
  border-radius: var(--radius-full);
  overflow: hidden;
}

.loader-bar-fill {
  height: 100%;
  width: 0;
  background: linear-gradient(90deg, var(--color-highlight), var(--color-gold));
  border-radius: var(--radius-full);
  animation: loadBar 1.5s ease forwards;
}

@keyframes loadBar {
  to { width: 100%; }
}

/* ============================================================
   Navigation
   ============================================================ */
#site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: var(--z-sticky);
  background: transparent;
  transition: all var(--transition-base);
}

#site-header.scrolled {
  background: var(--nav-bg);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  box-shadow: var(--shadow-md);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 80px;
  padding: 0 var(--space-xl);
  max-width: 1440px;
  margin: 0 auto;
}

/* Logo */
.site-logo {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  text-decoration: none;
  flex-shrink: 0;
  white-space: nowrap;
}

.site-logo img {
  height: 40px;
  width: auto;
}

.site-logo-text {
  font-family: var(--font-heading);
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--text-primary);
  letter-spacing: 0.05em;
}

#site-header:not(.scrolled) .site-logo-text {
  color: #ffffff;
}

/* ============================================================
   Navigation Menu — Tech Edition
   磁场追踪光效 · 磨砂玻璃下拉 · 霓虹悬停动画
   ============================================================ */

/* 导航磁场追踪光斑 — JS 通过 CSS Variables 控制位置 */
.site-nav::before {
  content: '';
  position: absolute;
  width: var(--glow-w, 100px);
  height: 38px;
  left: calc(var(--glow-x, 50%) - var(--glow-w, 100px) / 2);
  top: 50%;
  transform: translateY(-50%);
  border-radius: 10px;
  background: rgba(233, 69, 96, 0.10);
  backdrop-filter: blur(4px);
  transition: left 0.3s cubic-bezier(0.34, 1.2, 0.64, 1),
              width 0.3s cubic-bezier(0.34, 1.2, 0.64, 1),
              opacity 0.25s ease;
  opacity: 0;
  pointer-events: none;
  z-index: 0;
}

.site-nav.nav-active::before {
  opacity: 1;
}

.site-nav {
  display: flex;
  align-items: center;
  gap: var(--space-xs);
  flex: 1;
  min-width: 0;
  justify-content: center;
  overflow: visible;
  position: relative;
}

.site-nav .menu {
  display: flex;
  align-items: center;
  gap: 0;
  list-style: none;
  margin: 0;
  padding: 0;
  position: relative;
  z-index: 1;
}

.site-nav .menu-item {
  list-style: none;
  margin: 0;
  padding: 0;
  position: relative;
}

/* 菜单链接主样式 */
.site-nav .menu-item > a {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 0.6rem 1.1rem;
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--text-primary);
  border-radius: 10px;
  transition: color 0.2s ease, background 0.2s ease;
  position: relative;
  white-space: nowrap;
  letter-spacing: 0.01em;
  text-decoration: none;
}

/* 未滚动时白色 */
#site-header:not(.scrolled) .site-nav .menu-item > a {
  color: rgba(255, 255, 255, 0.85);
}

/* hover / 当前页高亮 */
.site-nav .menu-item:hover > a,
.site-nav .menu-item.current-menu-item > a,
.site-nav .menu-item.current-menu-ancestor > a {
  color: var(--color-highlight);
}

/* 底部扫光条 */
.site-nav .menu-item > a::after {
  content: '';
  position: absolute;
  bottom: 5px;
  left: 1.1rem;
  right: 1.1rem;
  height: 2px;
  background: linear-gradient(90deg, var(--color-highlight), var(--color-gold));
  border-radius: 2px;
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.3s cubic-bezier(0.34, 1.56, 0.64, 1);
}

.site-nav .menu-item:hover > a::after,
.site-nav .menu-item.current-menu-item > a::after {
  transform: scaleX(1);
}

/* 顶部霓虹点光源（hover时出现） */
.site-nav .menu-item > a::before {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  width: 80%;
  height: 60%;
  transform: translate(-50%, -50%);
  background: radial-gradient(ellipse at center, rgba(233, 69, 96, 0.18) 0%, transparent 70%);
  border-radius: 50%;
  opacity: 0;
  transition: opacity 0.3s ease;
  pointer-events: none;
}

.site-nav .menu-item:hover > a::before {
  opacity: 1;
}

/* 带下拉箭头的菜单项 */
.site-nav .menu-item-has-children > a .nav-arrow {
  display: inline-block;
  font-size: 0.65em;
  opacity: 0.6;
  transition: transform 0.3s ease, opacity 0.2s ease;
  margin-left: 2px;
}

.site-nav .menu-item-has-children:hover > a .nav-arrow,
.site-nav .menu-item-has-children:focus-within > a .nav-arrow {
  transform: rotate(180deg);
  opacity: 1;
  color: var(--color-highlight);
}

/* ============================================================
   下拉子菜单 — 磨砂玻璃 · 科技感卡片
   ============================================================ */

.site-nav .menu-item-has-children {
  position: relative;
}

/* 下拉触发桥接区 */
.site-nav .menu-item-has-children::after {
  content: '';
  position: absolute;
  top: 100%;
  left: 0;
  right: 0;
  height: 12px;
}

.site-nav .sub-menu {
  position: absolute;
  top: calc(100% + 8px);
  left: 0;
  transform: translateY(-12px) scale(0.96);
  min-width: 240px;
  list-style: none;
  margin: 0;
  padding: 8px;

  /* 磨砂玻璃效果 */
  background: rgba(255, 255, 255, 0.82);
  backdrop-filter: blur(24px) saturate(180%);
  -webkit-backdrop-filter: blur(24px) saturate(180%);
  border: 1px solid rgba(255, 255, 255, 0.6);
  border-top: 1px solid rgba(255, 255, 255, 0.9);
  border-radius: 16px;
  box-shadow:
    0 8px 32px rgba(26, 26, 46, 0.12),
    0 2px 8px rgba(26, 26, 46, 0.06),
    inset 0 1px 0 rgba(255, 255, 255, 0.8);

  opacity: 0;
  visibility: hidden;
  pointer-events: none;
  transition:
    opacity 0.28s ease,
    transform 0.28s cubic-bezier(0.34, 1.2, 0.64, 1),
    visibility 0.28s ease;
  z-index: var(--z-dropdown);
}

/* 深色模式下拉菜单 */
[data-theme="dark"] .site-nav .sub-menu {
  background: rgba(22, 33, 62, 0.88);
  backdrop-filter: blur(24px) saturate(160%);
  -webkit-backdrop-filter: blur(24px) saturate(160%);
  border-color: rgba(255, 255, 255, 0.1);
  border-top-color: rgba(255, 255, 255, 0.18);
  box-shadow:
    0 8px 40px rgba(0, 0, 0, 0.35),
    0 2px 10px rgba(0, 0, 0, 0.2),
    inset 0 1px 0 rgba(255, 255, 255, 0.08);
}

/* 未滚动（透明header）下的下拉菜单 */
#site-header:not(.scrolled) .site-nav .sub-menu {
  background: rgba(15, 20, 50, 0.85);
  backdrop-filter: blur(28px) saturate(180%);
  -webkit-backdrop-filter: blur(28px) saturate(180%);
  border-color: rgba(255, 255, 255, 0.12);
}

/* 下拉菜单三角形小箭头 */
.site-nav .sub-menu::before {
  content: '';
  position: absolute;
  top: -6px;
  left: 20px;
  transform: rotate(45deg);
  width: 12px;
  height: 12px;
  background: inherit;
  border: inherit;
  border-bottom: none;
  border-right: none;
  border-radius: 3px 0 0 0;
  z-index: -1;
}

/* hover/focus-within 显示 */
.site-nav .menu-item-has-children:hover > .sub-menu,
.site-nav .menu-item-has-children:focus-within > .sub-menu {
  opacity: 1;
  visibility: visible;
  pointer-events: auto;
  transform: translateY(0) scale(1);
}

/* 子菜单项 */
.site-nav .sub-menu .menu-item {
  list-style: none;
  margin: 0;
  padding: 0;
}

.site-nav .sub-menu .menu-item > a {
  display: flex;
  align-items: center;
  gap: 10px;
  color: var(--text-primary);
  padding: 0.7rem 1rem;
  border-radius: 10px;
  font-size: 0.875rem;
  font-weight: 500;
  white-space: nowrap;
  transition: all 0.2s ease;
  position: relative;
  overflow: hidden;
  text-decoration: none;
}

/* 子菜单未滚动时颜色 */
#site-header:not(.scrolled) .site-nav .sub-menu .menu-item > a {
  color: rgba(255, 255, 255, 0.88);
}

/* 子菜单 hover 效果 */
.site-nav .sub-menu .menu-item > a::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(90deg, rgba(233, 69, 96, 0.08), rgba(201, 162, 39, 0.04));
  border-radius: 10px;
  opacity: 0;
  transition: opacity 0.2s ease;
}

.site-nav .sub-menu .menu-item > a:hover::before {
  opacity: 1;
}

.site-nav .sub-menu .menu-item > a:hover {
  color: var(--color-highlight);
  transform: translateX(4px);
}

/* 子菜单项左侧小点指示器 */
.site-nav .sub-menu .menu-item > a::after {
  content: '';
  position: absolute;
  left: 0;
  top: 50%;
  transform: translateY(-50%) scaleY(0);
  width: 3px;
  height: 60%;
  background: linear-gradient(to bottom, var(--color-highlight), var(--color-gold));
  border-radius: 0 2px 2px 0;
  transition: transform 0.2s ease;
}

.site-nav .sub-menu .menu-item > a:hover::after {
  transform: translateY(-50%) scaleY(1);
}

/* 子菜单项分隔线 */
.site-nav .sub-menu .menu-item + .menu-item {
  border-top: 1px solid rgba(26, 26, 46, 0.05);
}

[data-theme="dark"] .site-nav .sub-menu .menu-item + .menu-item {
  border-top-color: rgba(255, 255, 255, 0.06);
}

/* 顶部渐变线装饰 */
.site-nav .sub-menu::after {
  content: '';
  position: absolute;
  top: 0;
  left: 20%;
  right: 20%;
  height: 2px;
  background: linear-gradient(90deg, transparent, var(--color-highlight), var(--color-gold), transparent);
  border-radius: 0 0 2px 2px;
  opacity: 0.7;
}

/* 下拉箭头旋转（旧版兼容） */
.site-nav .menu-item > a i:last-child {
  margin-left: 0.3em;
  font-size: 0.65em;
  transition: transform 0.3s ease;
  opacity: 0.6;
}

.site-nav .menu-item:hover > a i:last-child {
  transform: rotate(180deg);
  opacity: 1;
}

/* ============================================================
   子菜单 footer 区域（"查看全部"链接）
   ============================================================ */
.sub-menu-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 8px 12px 4px;
  margin-top: 4px;
  border-top: 1px solid rgba(26, 26, 46, 0.07);
  font-size: 0.73rem;
  color: var(--text-muted);
}

[data-theme="dark"] .sub-menu-footer {
  border-top-color: rgba(255, 255, 255, 0.08);
}

#site-header:not(.scrolled) .sub-menu-footer {
  border-top-color: rgba(255, 255, 255, 0.1);
}

.sub-menu-footer .view-all {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--color-highlight);
  text-decoration: none;
  letter-spacing: 0.02em;
  transition: gap 0.2s ease, opacity 0.2s ease;
  white-space: nowrap;
}

.sub-menu-footer .view-all:hover {
  gap: 9px;
  opacity: 0.85;
}

.sub-menu-footer .view-all i {
  font-size: 0.7em;
  transition: transform 0.2s ease;
}

.sub-menu-footer .view-all:hover i {
  transform: translateX(3px);
}

/* ============================================================
   菜单项 Badge/Tag 徽章
   ============================================================ */
.nav-badge {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 1px 6px;
  font-size: 0.6rem;
  font-weight: 700;
  line-height: 1.5;
  letter-spacing: 0.03em;
  text-transform: uppercase;
  border-radius: 20px;
  margin-left: 4px;
  flex-shrink: 0;
}

.nav-badge.badge-new {
  background: linear-gradient(135deg, var(--color-highlight), #ff7043);
  color: #fff;
  box-shadow: 0 2px 6px rgba(233, 69, 96, 0.35);
}

.nav-badge.badge-hot {
  background: linear-gradient(135deg, #ff9800, #f44336);
  color: #fff;
  box-shadow: 0 2px 6px rgba(255, 152, 0, 0.35);
}

.nav-badge.badge-ai {
  background: linear-gradient(135deg, #6c63ff, #3a86ff);
  color: #fff;
  box-shadow: 0 2px 6px rgba(108, 99, 255, 0.35);
}

/* ============================================================
   改进：子菜单宽度自适应，最宽 360px
   ============================================================ */
.site-nav .menu-item-has-children .sub-menu {
  min-width: 260px;
  max-width: 360px;
  width: max-content;
}

/* ============================================================
   改进：sub-icon 深色模式适配
   ============================================================ */
[data-theme="dark"] .site-nav .sub-menu .menu-item > a .sub-icon {
  background: rgba(233, 69, 96, 0.14);
}

/* ============================================================
   改进：下拉菜单 overflow 保护（右侧超出时右对齐）
   ============================================================ */
.site-nav .menu-item-has-children.drop-right > .sub-menu {
  left: auto;
  right: 0;
  transform: translateY(-12px) scale(0.96);
}

.site-nav .menu-item-has-children.drop-right:hover > .sub-menu,
.site-nav .menu-item-has-children.drop-right:focus-within > .sub-menu {
  transform: translateY(0) scale(1);
}

/* ============================================================
   当前菜单项 — 持续发光效果
   ============================================================ */
.site-nav .menu-item.current-menu-item > a,
.site-nav .menu-item.current-menu-ancestor > a {
  color: var(--color-highlight);
  font-weight: 600;
}

/* ============================================================
   导航 hover 时 header 底部发光线（仅 scrolled 状态）
   ============================================================ */
#site-header.scrolled::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  height: 1px;
  background: linear-gradient(
    90deg,
    transparent 0%,
    rgba(233, 69, 96, 0.0) 20%,
    rgba(233, 69, 96, 0.4) 40%,
    rgba(201, 162, 39, 0.4) 60%,
    rgba(233, 69, 96, 0.0) 80%,
    transparent 100%
  );
  opacity: 0;
  transition: opacity 0.4s ease;
  pointer-events: none;
}

#site-header.scrolled:has(.site-nav .menu-item:hover)::after {
  opacity: 1;
}

/* Header Actions */
.header-actions {
  display: flex;
  align-items: center;
  gap: var(--space-md);
  flex-shrink: 0;
}

/* Dark mode toggle */
.dark-mode-toggle {
  width: 44px;
  height: 44px;
  border-radius: var(--radius-full);
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: all var(--transition-base);
  color: var(--text-primary);
  font-size: 1.1rem;
}

#site-header:not(.scrolled) .dark-mode-toggle {
  background: rgba(255,255,255,0.1);
  border-color: rgba(255,255,255,0.2);
  color: #ffffff;
}

.dark-mode-toggle:hover {
  background: var(--color-highlight);
  border-color: var(--color-highlight);
  color: #ffffff;
  transform: rotate(20deg);
}

/* Mobile Menu Toggle */
.menu-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  width: 44px;
  height: 44px;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  border-radius: var(--radius-md);
  background: transparent;
  transition: background var(--transition-fast);
}

.menu-toggle:hover { background: var(--bg-secondary); }

.menu-toggle span {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--text-primary);
  border-radius: var(--radius-full);
  transition: all var(--transition-base);
}

#site-header:not(.scrolled) .menu-toggle span {
  background: #ffffff;
}

.menu-toggle.active span:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}

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

.menu-toggle.active span:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

@media (max-width: 768px) {
  .menu-toggle {
    display: flex;
  }
  
  .site-nav {
    position: fixed;
    top: 80px;
    left: 0;
    right: 0;
    background: var(--bg-primary);
    height: calc(100vh - 80px);
    overflow-y: auto;
    flex-direction: column;
    align-items: stretch;
    justify-content: flex-start;
    padding: var(--space-xl) 0;
    transform: translateY(-100%);
    opacity: 0;
    visibility: hidden;
    transition: all 0.3s ease;
    z-index: 199;
  }
  
  .site-nav.active {
    transform: translateY(0);
    opacity: 1;
    visibility: visible;
  }
  
  .site-nav .menu {
    flex-direction: column;
    gap: 0;
  }
  
  .site-nav .menu-item {
    width: 100%;
  }
  
  .site-nav .menu-item > a {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 1rem 2rem;
    border-radius: 0;
  }
  
  .site-nav .sub-menu {
    position: static;
    opacity: 1;
    visibility: visible;
    transform: none;
    background: var(--bg-secondary);
    border-radius: 0;
    box-shadow: none;
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s ease;
  }
  
  .site-nav .sub-menu.active {
    max-height: 500px;
  }
  
  .site-nav .menu-item-has-children > a .nav-arrow {
    transition: transform 0.3s ease;
  }
  
  .site-nav .menu-item-has-children > a.active .nav-arrow {
    transform: rotate(180deg);
  }
}

/* ============================================================
   Hero Section
   ============================================================ */
#hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  overflow: hidden;
}

.hero-slider {
  position: absolute;
  inset: 0;
  z-index: var(--z-below);
}

.hero-slide {
  position: absolute;
  inset: 0;
  background-size: cover;
  background-position: center;
  opacity: 0;
  transition: opacity 1s ease;
}

.hero-slide.active { opacity: 1; }

.hero-slide::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(
    135deg,
    rgba(26, 26, 46, 0.85) 0%,
    rgba(15, 52, 96, 0.7) 50%,
    rgba(26, 26, 46, 0.6) 100%
  );
}

/* Video Background */
.hero-video {
  position: absolute;
  inset: 0;
  z-index: var(--z-below);
}

.hero-video video {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.hero-video::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(26,26,46,0.8), rgba(15,52,96,0.6));
}

.hero-content {
  position: relative;
  z-index: var(--z-base);
  max-width: 1440px;
  margin: 0 auto;
  padding: 0 var(--space-xl);
  padding-top: 80px;
  width: 100%;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: var(--space-sm);
  background: rgba(233, 69, 96, 0.15);
  border: 1px solid rgba(233, 69, 96, 0.3);
  color: #ff7a8a;
  padding: var(--space-xs) var(--space-md);
  border-radius: var(--radius-full);
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  margin-bottom: var(--space-xl);
  animation: fadeInDown 0.8s ease 0.2s both;
}

.hero-badge i {
  font-size: 0.7rem;
  animation: pulse 2s infinite;
}

.hero-title {
  font-size: clamp(2.5rem, 7vw, 5.5rem);
  font-weight: 700;
  color: #ffffff;
  line-height: 1.15;
  margin-bottom: var(--space-xl);
  animation: fadeInUp 0.8s ease 0.4s both;
}

.hero-title .line { display: block; }
.hero-title .highlight { color: var(--color-highlight); }

.hero-desc {
  font-size: clamp(1rem, 2vw, 1.2rem);
  color: rgba(255,255,255,0.75);
  max-width: 600px;
  margin-bottom: var(--space-2xl);
  line-height: 1.8;
  animation: fadeInUp 0.8s ease 0.6s both;
}

.hero-actions {
  display: flex;
  align-items: center;
  gap: var(--space-lg);
  flex-wrap: wrap;
  animation: fadeInUp 0.8s ease 0.8s both;
}

.hero-stats {
  display: flex;
  gap: var(--space-2xl);
  margin-top: var(--space-4xl);
  padding-top: var(--space-xl);
  border-top: 1px solid rgba(255,255,255,0.1);
  animation: fadeInUp 0.8s ease 1s both;
}

.hero-stat-item {
  text-align: center;
}

.hero-stat-number {
  font-size: clamp(1.75rem, 4vw, 2.5rem);
  font-weight: 700;
  color: #ffffff;
  font-family: var(--font-heading);
  line-height: 1;
}

.hero-stat-number span {
  color: var(--color-highlight);
}

.hero-stat-label {
  font-size: 0.8rem;
  color: rgba(255,255,255,0.6);
  margin-top: var(--space-xs);
  letter-spacing: 0.05em;
}

/* Slider Controls */
.slider-controls {
  position: absolute;
  bottom: var(--space-xl);
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  align-items: center;
  gap: var(--space-md);
  z-index: var(--z-base);
}

.slider-dot {
  width: 8px;
  height: 8px;
  border-radius: var(--radius-full);
  background: rgba(255,255,255,0.4);
  cursor: pointer;
  transition: all var(--transition-base);
  border: none;
}

.slider-dot.active {
  width: 32px;
  background: var(--color-highlight);
}

.slider-arrows {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  width: 100%;
  display: flex;
  justify-content: space-between;
  padding: 0 var(--space-xl);
  z-index: var(--z-base);
  pointer-events: none;
}

.slider-arrow {
  width: 50px;
  height: 50px;
  border-radius: var(--radius-full);
  background: rgba(255,255,255,0.1);
  border: 1px solid rgba(255,255,255,0.2);
  color: #ffffff;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: all var(--transition-base);
  pointer-events: all;
  font-size: 1.1rem;
  backdrop-filter: blur(4px);
}

.slider-arrow:hover {
  background: var(--color-highlight);
  border-color: var(--color-highlight);
  transform: scale(1.1);
}

/* Scroll indicator */
.scroll-indicator {
  position: absolute;
  bottom: var(--space-xl);
  right: var(--space-xl);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-sm);
  color: rgba(255,255,255,0.6);
  font-size: 0.75rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  z-index: var(--z-base);
  animation: fadeIn 1s ease 1.5s both;
}

.scroll-indicator-line {
  width: 1px;
  height: 50px;
  background: linear-gradient(to bottom, rgba(255,255,255,0), rgba(255,255,255,0.5));
  animation: scrollLine 1.5s ease infinite;
}

@keyframes scrollLine {
  0% { transform: scaleY(0); transform-origin: top; }
  50% { transform: scaleY(1); transform-origin: top; }
  100% { transform: scaleY(0); transform-origin: bottom; }
}

/* ============================================================
   About Section
   ============================================================ */
#about {
  background: var(--bg-primary);
}

.about-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-4xl);
  align-items: center;
}

.about-image-wrapper {
  position: relative;
}

.about-image-main {
  border-radius: var(--radius-xl);
  overflow: hidden;
  box-shadow: var(--shadow-xl);
  aspect-ratio: 4/5;
}

.about-image-main img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.5s ease;
}

.about-image-wrapper:hover .about-image-main img {
  transform: scale(1.05);
}

.about-image-secondary {
  position: absolute;
  bottom: -30px;
  right: -30px;
  width: 200px;
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-xl);
  border: 4px solid var(--bg-primary);
}

.about-badge {
  position: absolute;
  top: var(--space-xl);
  left: -var(--space-xl);
  background: linear-gradient(135deg, var(--color-highlight), #c73652);
  color: #ffffff;
  padding: var(--space-lg);
  border-radius: var(--radius-lg);
  text-align: center;
  box-shadow: var(--shadow-lg);
  transform: translateX(-20px);
}

.about-badge-number {
  font-size: 2.5rem;
  font-weight: 700;
  line-height: 1;
  font-family: var(--font-heading);
}

.about-badge-text {
  font-size: 0.75rem;
  opacity: 0.9;
  margin-top: var(--space-xs);
}

.about-content {
  padding: var(--space-xl) 0;
}

.about-features {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-lg);
  margin-top: var(--space-2xl);
}

.about-feature-item {
  display: flex;
  align-items: flex-start;
  gap: var(--space-md);
}

.about-feature-icon {
  width: 44px;
  height: 44px;
  min-width: 44px;
  border-radius: var(--radius-md);
  background: linear-gradient(135deg, var(--color-highlight), var(--color-gold));
  display: flex;
  align-items: center;
  justify-content: center;
  color: #ffffff;
  font-size: 1.1rem;
  box-shadow: 0 4px 12px rgba(233, 69, 96, 0.3);
}

.about-feature-title {
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: var(--space-xs);
}

.about-feature-desc {
  font-size: 0.8rem;
  color: var(--text-secondary);
  line-height: 1.5;
}

/* ============================================================
   Services Section
   ============================================================ */
#services {
  background: var(--bg-secondary);
}

.services-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-xl);
}

.service-card {
  background: var(--card-bg);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-xl);
  padding: var(--space-2xl);
  transition: all var(--transition-base);
  position: relative;
  overflow: hidden;
  group: true;
}

.service-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--color-highlight), var(--color-gold));
  transform: scaleX(0);
  transition: transform var(--transition-base);
}

.service-card:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow-xl);
  border-color: transparent;
}

.service-card:hover::before { transform: scaleX(1); }

.service-icon {
  width: 64px;
  height: 64px;
  border-radius: var(--radius-lg);
  background: linear-gradient(135deg, var(--bg-secondary), var(--bg-tertiary));
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.75rem;
  margin-bottom: var(--space-xl);
  transition: all var(--transition-base);
  color: var(--color-highlight);
  border: 1px solid var(--border-color);
}

.service-card:hover .service-icon {
  background: linear-gradient(135deg, var(--color-highlight), var(--color-gold));
  color: #ffffff;
  border-color: transparent;
  transform: rotate(10deg) scale(1.1);
  box-shadow: 0 8px 24px rgba(233, 69, 96, 0.35);
}

.service-number {
  position: absolute;
  top: var(--space-xl);
  right: var(--space-xl);
  font-size: 4rem;
  font-weight: 700;
  font-family: var(--font-heading);
  color: var(--border-color);
  line-height: 1;
  transition: color var(--transition-base);
}

.service-card:hover .service-number {
  color: rgba(233, 69, 96, 0.1);
}

.service-title {
  font-size: 1.25rem;
  font-weight: 700;
  margin-bottom: var(--space-md);
  color: var(--text-primary);
}

.service-desc {
  font-size: 0.9rem;
  color: var(--text-secondary);
  line-height: 1.7;
  margin-bottom: var(--space-xl);
}

.service-tags {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-sm);
}

.service-tag {
  font-size: 0.75rem;
  padding: 3px 10px;
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-full);
  color: var(--text-muted);
  transition: all var(--transition-fast);
}

.service-card:hover .service-tag {
  background: rgba(233, 69, 96, 0.08);
  border-color: rgba(233, 69, 96, 0.2);
  color: var(--color-highlight);
}

/* ============================================================
   Products / Portfolio Section
   ============================================================ */
#products {
  background: var(--bg-primary);
}

.filter-bar {
  display: flex;
  align-items: center;
  justify-content: center;
  flex-wrap: wrap;
  gap: var(--space-sm);
  margin-bottom: var(--space-3xl);
}

.filter-btn {
  padding: 0.5rem 1.5rem;
  border-radius: var(--radius-full);
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--text-secondary);
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  cursor: pointer;
  transition: all var(--transition-base);
}

.filter-btn:hover,
.filter-btn.active {
  background: var(--color-highlight);
  color: #ffffff;
  border-color: var(--color-highlight);
  box-shadow: 0 4px 16px rgba(233, 69, 96, 0.3);
}

.products-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-xl);
}

.product-card {
  border-radius: var(--radius-xl);
  overflow: hidden;
  background: var(--card-bg);
  border: 1px solid var(--border-color);
  transition: all var(--transition-base);
}

.product-card:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow-xl);
}

.product-image {
  aspect-ratio: 4/3;
  overflow: hidden;
  position: relative;
}

.product-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.5s ease;
}

.product-card:hover .product-image img {
  transform: scale(1.08);
}

.product-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, rgba(26,26,46,0.8), transparent);
  opacity: 0;
  transition: opacity var(--transition-base);
  display: flex;
  align-items: flex-end;
  justify-content: center;
  padding: var(--space-xl);
  gap: var(--space-md);
}

.product-card:hover .product-overlay { opacity: 1; }

.product-overlay .btn {
  transform: translateY(20px);
  transition: all var(--transition-spring);
}

.product-card:hover .product-overlay .btn {
  transform: translateY(0);
}

.product-info {
  padding: var(--space-xl);
}

.product-category {
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--color-highlight);
  font-weight: 600;
  margin-bottom: var(--space-sm);
}

.product-title {
  font-size: 1.1rem;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: var(--space-sm);
}

.product-desc {
  font-size: 0.85rem;
  color: var(--text-secondary);
  line-height: 1.6;
}

/* ============================================================
   Stats / Numbers Section
   ============================================================ */
#stats {
  background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-accent) 100%);
  position: relative;
  overflow: hidden;
}

#stats::before {
  content: '';
  position: absolute;
  top: -50%;
  left: -20%;
  width: 600px;
  height: 600px;
  background: radial-gradient(circle, rgba(233,69,96,0.15) 0%, transparent 70%);
}

#stats::after {
  content: '';
  position: absolute;
  bottom: -30%;
  right: -10%;
  width: 400px;
  height: 400px;
  background: radial-gradient(circle, rgba(201,162,39,0.1) 0%, transparent 70%);
}

.stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-xl);
  position: relative;
  z-index: var(--z-base);
}

.stat-card {
  text-align: center;
  padding: var(--space-2xl);
  border: 1px solid rgba(255,255,255,0.08);
  border-radius: var(--radius-xl);
  background: rgba(255,255,255,0.04);
  backdrop-filter: blur(10px);
  transition: all var(--transition-base);
}

.stat-card:hover {
  background: rgba(255,255,255,0.08);
  transform: translateY(-5px);
  border-color: rgba(233,69,96,0.3);
}

.stat-icon {
  font-size: 2.5rem;
  margin-bottom: var(--space-md);
  color: var(--color-highlight);
}

.stat-number {
  font-family: var(--font-heading);
  font-size: clamp(2rem, 5vw, 3.5rem);
  font-weight: 700;
  color: #ffffff;
  line-height: 1;
  margin-bottom: var(--space-sm);
}

.stat-suffix {
  color: var(--color-gold);
}

.stat-label {
  font-size: 0.9rem;
  color: rgba(255,255,255,0.6);
  letter-spacing: 0.05em;
}

/* ============================================================
   Team Section
   ============================================================ */
#team {
  background: var(--bg-secondary);
}

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

.team-card {
  background: var(--card-bg);
  border-radius: var(--radius-xl);
  overflow: hidden;
  border: 1px solid var(--border-color);
  transition: all var(--transition-base);
  text-align: center;
}

.team-card:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow-xl);
}

.team-image {
  aspect-ratio: 1;
  overflow: hidden;
  position: relative;
}

.team-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.5s ease;
}

.team-card:hover .team-image img {
  transform: scale(1.08);
}

.team-social {
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, rgba(26,26,46,0.9), transparent);
  display: flex;
  align-items: flex-end;
  justify-content: center;
  gap: var(--space-md);
  padding: var(--space-xl);
  opacity: 0;
  transition: opacity var(--transition-base);
}

.team-card:hover .team-social { opacity: 1; }

.team-social a {
  width: 36px;
  height: 36px;
  border-radius: var(--radius-full);
  background: rgba(255,255,255,0.15);
  border: 1px solid rgba(255,255,255,0.2);
  color: #ffffff;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.875rem;
  transition: all var(--transition-fast);
  transform: translateY(10px);
}

.team-card:hover .team-social a {
  transform: translateY(0);
}

.team-social a:hover {
  background: var(--color-highlight);
  border-color: var(--color-highlight);
}

.team-info {
  padding: var(--space-xl);
}

.team-name {
  font-size: 1.1rem;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: var(--space-xs);
}

.team-role {
  font-size: 0.825rem;
  color: var(--color-highlight);
  font-weight: 500;
  margin-bottom: var(--space-md);
}

.team-bio {
  font-size: 0.825rem;
  color: var(--text-secondary);
  line-height: 1.6;
}

/* ============================================================
   Testimonials
   ============================================================ */
#testimonials {
  background: var(--bg-primary);
  overflow: hidden;
}

.testimonials-slider {
  position: relative;
  overflow: hidden;
}

.testimonials-track {
  display: flex;
  gap: var(--space-xl);
  transition: transform 0.5s cubic-bezier(0.4, 0, 0.2, 1);
}

.testimonial-card {
  min-width: calc(33.333% - 14px);
  background: var(--card-bg);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-xl);
  padding: var(--space-2xl);
  position: relative;
  transition: all var(--transition-base);
}

.testimonial-card:hover {
  border-color: var(--color-highlight);
  box-shadow: var(--shadow-lg);
}

.testimonial-quote {
  font-size: 3rem;
  color: var(--color-highlight);
  opacity: 0.3;
  font-family: Georgia, serif;
  line-height: 1;
  margin-bottom: var(--space-md);
}

.testimonial-text {
  font-size: 0.95rem;
  color: var(--text-secondary);
  line-height: 1.8;
  margin-bottom: var(--space-xl);
  font-style: italic;
}

.testimonial-rating {
  display: flex;
  gap: 3px;
  margin-bottom: var(--space-lg);
  color: var(--color-gold);
  font-size: 0.875rem;
}

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

.testimonial-avatar {
  width: 50px;
  height: 50px;
  border-radius: var(--radius-full);
  overflow: hidden;
  border: 2px solid var(--border-color);
}

.testimonial-avatar img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.testimonial-name {
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--text-primary);
}

.testimonial-company {
  font-size: 0.8rem;
  color: var(--text-muted);
}

/* ============================================================
   Contact Section
   ============================================================ */
#contact {
  background: var(--bg-secondary);
}

.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1.5fr;
  gap: var(--space-4xl);
  align-items: start;
}

.contact-info-item {
  display: flex;
  align-items: flex-start;
  gap: var(--space-lg);
  padding: var(--space-xl);
  background: var(--card-bg);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  transition: all var(--transition-base);
  margin-bottom: var(--space-md);
}

.contact-info-item:hover {
  border-color: var(--color-highlight);
  box-shadow: var(--shadow-md);
  transform: translateX(5px);
}

.contact-info-icon {
  width: 50px;
  height: 50px;
  min-width: 50px;
  border-radius: var(--radius-md);
  background: linear-gradient(135deg, var(--color-highlight), var(--color-gold));
  display: flex;
  align-items: center;
  justify-content: center;
  color: #ffffff;
  font-size: 1.2rem;
  box-shadow: 0 4px 12px rgba(233, 69, 96, 0.3);
}

.contact-info-title {
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--text-muted);
  margin-bottom: var(--space-xs);
}

.contact-info-value {
  font-size: 0.95rem;
  color: var(--text-primary);
  font-weight: 500;
}

/* Contact Form */
.contact-form-wrapper {
  background: var(--card-bg);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-xl);
  padding: var(--space-2xl);
  box-shadow: var(--shadow-md);
}

.form-title {
  font-size: 1.5rem;
  font-weight: 600;
  margin-bottom: var(--space-xl);
  color: var(--text-primary);
}

.form-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-lg);
  margin-bottom: var(--space-lg);
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: var(--space-xs);
}

.form-group.full { grid-column: 1 / -1; }

.form-label {
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--text-secondary);
}

.form-label span {
  color: var(--color-highlight);
}

.form-input,
.form-select,
.form-textarea {
  padding: 0.75rem var(--space-md);
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  color: var(--text-primary);
  font-size: 0.9rem;
  transition: all var(--transition-fast);
  outline: none;
  appearance: none;
}

.form-input:focus,
.form-select:focus,
.form-textarea:focus {
  border-color: var(--color-highlight);
  box-shadow: 0 0 0 3px rgba(233, 69, 96, 0.1);
  background: var(--bg-primary);
}

.form-textarea {
  resize: vertical;
  min-height: 120px;
}

.form-submit {
  width: 100%;
  padding: 1rem;
  font-size: 1rem;
  position: relative;
}

.form-submit .spinner {
  display: none;
  width: 18px;
  height: 18px;
  border: 2px solid rgba(255,255,255,0.3);
  border-top-color: #ffffff;
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
}

.form-submit.loading .spinner { display: block; }
.form-submit.loading .btn-text { display: none; }

@keyframes spin { to { transform: rotate(360deg); } }

.form-message {
  display: none;
  padding: var(--space-md);
  border-radius: var(--radius-md);
  font-size: 0.875rem;
  margin-top: var(--space-md);
  animation: fadeIn 0.3s ease;
}

.form-message.success {
  display: block;
  background: rgba(16, 185, 129, 0.1);
  border: 1px solid rgba(16, 185, 129, 0.3);
  color: #10b981;
}

.form-message.error {
  display: block;
  background: rgba(239, 68, 68, 0.1);
  border: 1px solid rgba(239, 68, 68, 0.3);
  color: #ef4444;
}

/* ============================================================
   Footer
   ============================================================ */
#site-footer {
  background: var(--color-primary);
  color: rgba(255,255,255,0.7);
}

.footer-main {
  padding: var(--space-4xl) 0 var(--space-3xl);
  border-bottom: 1px solid rgba(255,255,255,0.08);
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr 1fr;
  gap: var(--space-2xl);
}

.footer-brand .site-logo-text {
  color: #ffffff;
  font-size: 1.75rem;
  display: block;
  margin-bottom: var(--space-lg);
}

.footer-tagline {
  font-size: 0.9rem;
  line-height: 1.8;
  margin-bottom: var(--space-xl);
  color: rgba(255,255,255,0.55);
}

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

.footer-social a {
  width: 36px;
  height: 36px;
  border-radius: var(--radius-full);
  background: rgba(255,255,255,0.05);
  border: 1px solid rgba(255,255,255,0.1);
  color: rgba(255,255,255,0.6);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.875rem;
  transition: all var(--transition-base);
}

.footer-social a:hover {
  background: var(--color-highlight);
  border-color: var(--color-highlight);
  color: #ffffff;
  transform: translateY(-3px);
}

.footer-col-title {
  font-size: 0.85rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: #ffffff;
  margin-bottom: var(--space-xl);
  position: relative;
  padding-bottom: var(--space-md);
}

.footer-col-title::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 24px;
  height: 2px;
  background: var(--color-highlight);
}

.footer-links {
  display: flex;
  flex-direction: column;
  gap: var(--space-md);
}

.footer-links a {
  font-size: 0.875rem;
  color: rgba(255,255,255,0.55);
  transition: all var(--transition-fast);
  display: flex;
  align-items: center;
  gap: var(--space-sm);
}

.footer-links a::before {
  content: '';
  width: 0;
  height: 1px;
  background: var(--color-highlight);
  transition: width var(--transition-base);
}

.footer-links a:hover {
  color: rgba(255,255,255,0.9);
  padding-left: var(--space-sm);
}

.footer-links a:hover::before {
  width: 12px;
}

.footer-newsletter .form-input {
  background: rgba(255,255,255,0.05);
  border-color: rgba(255,255,255,0.1);
  color: #ffffff;
  border-radius: var(--radius-md) var(--radius-md) 0 0;
}

.footer-newsletter .form-input::placeholder {
  color: rgba(255,255,255,0.35);
}

.footer-newsletter .btn {
  width: 100%;
  border-radius: 0 0 var(--radius-md) var(--radius-md);
}

.footer-bottom {
  padding: var(--space-xl) 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 0.825rem;
  color: rgba(255,255,255,0.4);
}

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

.footer-bottom-links a {
  color: rgba(255,255,255,0.4);
  transition: color var(--transition-fast);
}

.footer-bottom-links a:hover { color: rgba(255,255,255,0.8); }

/* ============================================================
   Back to Top Button
   ============================================================ */
#back-to-top {
  position: fixed;
  bottom: var(--space-xl);
  right: var(--space-xl);
  width: 48px;
  height: 48px;
  border-radius: var(--radius-full);
  background: linear-gradient(135deg, var(--color-highlight), #c73652);
  color: #ffffff;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.1rem;
  box-shadow: 0 4px 20px rgba(233, 69, 96, 0.4);
  cursor: pointer;
  opacity: 0;
  visibility: hidden;
  transform: translateY(20px);
  transition: all var(--transition-spring);
  z-index: var(--z-toast);
}

#back-to-top.visible {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

#back-to-top:hover {
  transform: translateY(-4px);
  box-shadow: 0 8px 30px rgba(233, 69, 96, 0.5);
}

/* ============================================================
   Progress Bar
   ============================================================ */
#reading-progress {
  position: fixed;
  top: 0;
  left: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--color-highlight), var(--color-gold));
  z-index: 10000;
  transition: width 0.1s linear;
  width: 0;
}

/* ============================================================
   Lightbox
   ============================================================ */
.lightbox-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.9);
  z-index: var(--z-modal);
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  visibility: hidden;
  transition: all var(--transition-base);
  backdrop-filter: blur(8px);
}

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

.lightbox-content {
  max-width: 90vw;
  max-height: 90vh;
  position: relative;
}

.lightbox-content img {
  max-width: 100%;
  max-height: 90vh;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-xl);
}

.lightbox-close {
  position: absolute;
  top: -50px;
  right: 0;
  width: 40px;
  height: 40px;
  border-radius: var(--radius-full);
  background: rgba(255,255,255,0.1);
  color: #ffffff;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: all var(--transition-base);
  font-size: 1.2rem;
}

.lightbox-close:hover {
  background: var(--color-highlight);
  transform: rotate(90deg);
}

/* ============================================================
   Notification / Toast
   ============================================================ */
.toast-container {
  position: fixed;
  top: var(--space-xl);
  right: var(--space-xl);
  z-index: var(--z-toast);
  display: flex;
  flex-direction: column;
  gap: var(--space-md);
}

.toast {
  background: var(--card-bg);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  padding: var(--space-md) var(--space-xl);
  box-shadow: var(--shadow-xl);
  display: flex;
  align-items: center;
  gap: var(--space-md);
  max-width: 360px;
  transform: translateX(120%);
  transition: transform var(--transition-spring);
  font-size: 0.875rem;
}

.toast.show { transform: translateX(0); }

.toast-icon { font-size: 1.2rem; }
.toast.success .toast-icon { color: #10b981; }
.toast.error .toast-icon { color: #ef4444; }
.toast.info .toast-icon { color: #3b82f6; }

/* ============================================================
   Reveal Animations
   ============================================================ */
.reveal {
  opacity: 0;
  transform: translateY(40px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}

.reveal.revealed {
  opacity: 1;
  transform: translateY(0);
}

.reveal-left {
  opacity: 0;
  transform: translateX(-40px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}

.reveal-left.revealed {
  opacity: 1;
  transform: translateX(0);
}

.reveal-right {
  opacity: 0;
  transform: translateX(40px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}

.reveal-right.revealed {
  opacity: 1;
  transform: translateX(0);
}

.reveal-scale {
  opacity: 0;
  transform: scale(0.9);
  transition: opacity 0.7s ease, transform 0.7s ease;
}

.reveal-scale.revealed {
  opacity: 1;
  transform: scale(1);
}

/* Stagger delays */
.delay-100 { transition-delay: 0.1s; }
.delay-200 { transition-delay: 0.2s; }
.delay-300 { transition-delay: 0.3s; }
.delay-400 { transition-delay: 0.4s; }
.delay-500 { transition-delay: 0.5s; }
.delay-600 { transition-delay: 0.6s; }

/* ============================================================
   Keyframe Animations
   ============================================================ */
@keyframes fadeIn {
  from { opacity: 0; }
  to { opacity: 1; }
}

@keyframes fadeInUp {
  from { opacity: 0; transform: translateY(30px); }
  to { opacity: 1; transform: translateY(0); }
}

@keyframes fadeInDown {
  from { opacity: 0; transform: translateY(-20px); }
  to { opacity: 1; transform: translateY(0); }
}

@keyframes pulse {
  0%, 100% { transform: scale(1); opacity: 1; }
  50% { transform: scale(1.4); opacity: 0.7; }
}

@keyframes float {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-12px); }
}

@keyframes shimmer {
  0% { background-position: -200% center; }
  100% { background-position: 200% center; }
}

/* ============================================================
   Cookie Banner
   ============================================================ */
#cookie-banner {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  background: var(--card-bg);
  border-top: 1px solid var(--border-color);
  padding: var(--space-xl);
  z-index: var(--z-overlay);
  transform: translateY(100%);
  transition: transform var(--transition-spring);
  box-shadow: var(--shadow-xl);
}

#cookie-banner.show {
  transform: translateY(0);
}

.cookie-inner {
  max-width: 1280px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  gap: var(--space-2xl);
}

.cookie-text {
  flex: 1;
  font-size: 0.875rem;
  color: var(--text-secondary);
  line-height: 1.6;
}

.cookie-actions {
  display: flex;
  gap: var(--space-md);
  flex-shrink: 0;
}

/* ============================================================
   Page / Content Styles
   ============================================================ */
.page-hero {
  padding: calc(80px + var(--space-4xl)) 0 var(--space-4xl);
  background: linear-gradient(135deg, var(--color-primary), var(--color-accent));
  text-align: center;
  color: #ffffff;
}

.page-hero h1 {
  color: #ffffff;
  font-size: clamp(2rem, 5vw, 3.5rem);
  margin-bottom: var(--space-md);
}

.page-hero p {
  font-size: 1.1rem;
  color: rgba(255,255,255,0.75);
  max-width: 600px;
  margin: 0 auto;
}

.breadcrumb {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  font-size: 0.825rem;
  color: rgba(255,255,255,0.55);
  justify-content: center;
  margin-top: var(--space-md);
}

.breadcrumb a { color: rgba(255,255,255,0.75); }
.breadcrumb a:hover { color: #ffffff; }
.breadcrumb .sep { opacity: 0.5; }

/* Post / Blog */
.post-card {
  background: var(--card-bg);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-xl);
  overflow: hidden;
  transition: all var(--transition-base);
}

.post-card:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-xl);
}

.post-thumbnail {
  aspect-ratio: 16/9;
  overflow: hidden;
}

.post-thumbnail img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.5s ease;
}

.post-card:hover .post-thumbnail img {
  transform: scale(1.05);
}

.post-body {
  padding: var(--space-xl);
}

.post-meta {
  display: flex;
  align-items: center;
  gap: var(--space-md);
  margin-bottom: var(--space-md);
  font-size: 0.8rem;
  color: var(--text-muted);
}

.post-category-badge {
  background: rgba(233, 69, 96, 0.1);
  color: var(--color-highlight);
  padding: 3px 10px;
  border-radius: var(--radius-full);
  font-size: 0.75rem;
  font-weight: 600;
}

.post-title {
  font-size: 1.15rem;
  font-weight: 600;
  margin-bottom: var(--space-md);
  color: var(--text-primary);
  line-height: 1.4;
}

.post-excerpt {
  font-size: 0.875rem;
  color: var(--text-secondary);
  line-height: 1.7;
  margin-bottom: var(--space-lg);
}

.read-more {
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--color-highlight);
  display: inline-flex;
  align-items: center;
  gap: var(--space-sm);
  transition: gap var(--transition-base);
}

.read-more:hover { gap: var(--space-md); color: var(--color-highlight); }

/* ============================================================
   Responsive Design
   ============================================================ */
@media (max-width: 1200px) {
  .services-grid { grid-template-columns: repeat(2, 1fr); }
  .products-grid { grid-template-columns: repeat(2, 1fr); }
  .team-grid { grid-template-columns: repeat(2, 1fr); }
  .stats-grid { grid-template-columns: repeat(2, 1fr); }
  .footer-grid { grid-template-columns: 1fr 1fr; gap: var(--space-2xl); }
}

@media (max-width: 992px) {
  .about-grid { grid-template-columns: 1fr; }
  .about-image-wrapper { display: none; }
  .contact-grid { grid-template-columns: 1fr; }
  .testimonial-card { min-width: calc(50% - 10px); }
  .hero-stats { gap: var(--space-xl); }

  /* 在 992px 以下切换为移动菜单 */
  .site-nav { display: none; }
  .menu-toggle { display: flex; }

  /* Mobile Menu */
  .mobile-menu {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: var(--bg-primary);
    z-index: var(--z-overlay);
    padding: var(--space-2xl);
    padding-top: 100px;
    transform: translateX(-100%);
    transition: transform var(--transition-slow);
    overflow-y: auto;
  }

  .mobile-menu.open { transform: translateX(0); }

  .mobile-menu .menu {
    display: flex;
    flex-direction: column;
    gap: var(--space-sm);
  }

  .mobile-menu .menu-item > a {
    display: block;
    padding: var(--space-lg);
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--text-primary);
    border-bottom: 1px solid var(--border-color);
    transition: color var(--transition-fast);
  }

  .mobile-menu .menu-item > a:hover {
    color: var(--color-highlight);
  }

  .mobile-menu .sub-menu {
    padding-left: var(--space-xl);
    display: block;
    position: static;
    transform: none;
    opacity: 1;
    visibility: visible;
    box-shadow: none;
    border: none;
    padding: var(--space-sm) 0 var(--space-sm) var(--space-xl);
    background: none;
  }
}

@media (max-width: 768px) {
  :root {
    --space-4xl: 4rem;
    --space-3xl: 3rem;
  }

  .container { padding: 0 var(--space-lg); }

  .header-inner { padding: 0 var(--space-lg); }

  .hero-stats { flex-wrap: wrap; }
  .hero-stat-item { flex: 1; min-width: 120px; }

  .services-grid { grid-template-columns: 1fr; }
  .products-grid { grid-template-columns: 1fr; }
  .team-grid { grid-template-columns: repeat(2, 1fr); }
  .stats-grid { grid-template-columns: 1fr 1fr; }
  .about-features { grid-template-columns: 1fr; }
  .testimonial-card { min-width: calc(100% - 0px); }

  .form-grid { grid-template-columns: 1fr; }

  .footer-grid { grid-template-columns: 1fr; }
  .footer-bottom {
    flex-direction: column;
    gap: var(--space-md);
    text-align: center;
  }

  .slider-arrows { display: none; }

  .cookie-inner { flex-direction: column; }

  #back-to-top { right: var(--space-lg); bottom: var(--space-lg); }
}

@media (max-width: 480px) {
  .hero-actions { flex-direction: column; width: 100%; }
  .hero-actions .btn { width: 100%; justify-content: center; }
  .team-grid { grid-template-columns: 1fr; }
  .stats-grid { grid-template-columns: 1fr; }
}

/* ============================================================
   Print Styles
   ============================================================ */
@media print {
  #site-header, #back-to-top, #cookie-banner, .hero-slider,
  .dark-mode-toggle, .menu-toggle { display: none !important; }

  body { color: #000; background: #fff; }
  a { color: #000; }
}