/* ============================================================
   CRITICAL CSS - 必须放在32KB以内
   ============================================================ */

/* 悬浮弹窗强制显示 */
.widget-popup.show { opacity: 1 !important; visibility: visible !important; transform: translateX(0) !important; z-index: 9999 !important; display: block !important; }
.widget-popup { z-index: 9998 !important; }
.floating-widget { z-index: 999 !important; }

/* 案例展开按钮样式修复 */
.cases-toggle-btn { display: inline-flex !important; align-items: center !important; justify-content: center !important; gap: 8px !important; padding: 12px 28px !important; background: #fff !important; border: 2px solid var(--color-primary) !important; color: var(--color-primary) !important; border-radius: 999px !important; font-size: 0.95rem !important; font-weight: 500 !important; cursor: pointer !important; transition: all 0.3s !important; line-height: 1.5 !important; vertical-align: middle !important; }
.cases-toggle-btn:hover { background: var(--color-primary) !important; color: #fff !important; }
.cases-toggle-wrapper { display: flex !important; align-items: center !important; justify-content: center !important; gap: 12px !important; flex-wrap: wrap !important; margin-top: 24px !important; }
.cases-toggle-wrapper .btn-outline-dark { margin-left: 0 !important; }

/* Why Choose Us 区域修复 */
.features-grid { display: grid !important; grid-template-columns: repeat(4, 1fr) !important; gap: 32px !important; }
@media (max-width: 1200px) { .features-grid { grid-template-columns: repeat(2, 1fr) !important; } }
@media (max-width: 768px) { .features-grid { grid-template-columns: 1fr !important; } }
.feature-item { text-align: center !important; padding: 32px 24px !important; border-radius: var(--radius-lg) !important; transition: var(--transition) !important; }
.feature-icon { width: 64px !important; height: 64px !important; margin: 0 auto 20px !important; background: rgba(201, 169, 97, 0.12) !important; border-radius: var(--radius-full) !important; display: flex !important; align-items: center !important; justify-content: center !important; transition: var(--transition) !important; }
.feature-item h4 { margin-bottom: 10px !important; color: var(--color-text-white) !important; }
.feature-item p { color: rgba(255,255,255,0.6) !important; margin-bottom: 0 !important; }

/* 底部二维码显示 */
.footer-qr { display: flex !important; flex-direction: column !important; align-items: center !important; gap: 12px !important; }
.footer-qr img { width: 120px !important; height: 120px !important; object-fit: contain !important; border-radius: 8px !important; background: #fff !important; padding: 8px !important; }

/* ============================================================ */

/* ============================================================
   FORCE OVERRIDE - 最高优先级样式（确保生效）
   ============================================================ */

/* 桌面端Logo容器 - 防止被flex收缩 */
.site-logo {
  flex-shrink: 0 !important;
  display: flex !important;
  align-items: center !important;
  height: 160px !important;
}

/* 桌面端Logo - 更大更醒目 */
.site-logo .logo-brand,
.logo-brand {
  height: 150px !important;
  max-height: 150px !important;
  width: auto !important;
  display: block !important;
  object-fit: contain !important;
}

/* 桌面端Header - 协调高度 */
.header-inner {
  display: flex !important;
  align-items: center !important;
  justify-content: space-between !important;
  height: 160px !important;
  gap: 36px !important;
}

/* 桌面端主导航 - 居中不挤占，文字不换行 */
.main-nav {
  display: flex !important;
  align-items: center !important;
  gap: 6px !important;
  flex: 1 !important;
  justify-content: center !important;
  white-space: nowrap !important;
}

.main-nav a {
  white-space: nowrap !important;
  padding: 10px 14px !important;
  font-size: 0.92rem !important;
}

/* 桌面端右侧操作区 - 强制显示 */
.header-actions {
  display: flex !important;
  align-items: center !important;
  gap: 16px !important;
  flex-shrink: 0 !important;
  margin-left: 20px !important;
  position: relative !important;
  z-index: 999 !important;
}

/* 底部二维码 - 强制显示 */
.footer-qr .qr-code img,
.widget-popup .qr img {
  display: block !important;
  width: 100% !important;
  height: 100% !important;
  object-fit: contain !important;
  visibility: visible !important;
  opacity: 1 !important;
}

.footer-qr .qr-code {
  overflow: visible !important;
}

/* ============================================================
   移动端（768px以下）
   ============================================================ */
@media (max-width: 768px) {
  .site-logo {
    height: 68px !important;
  }
  .site-logo .logo-brand,
  .logo-brand {
    height: 50px !important;
    max-height: 50px !important;
  }
  .header-inner {
    height: 68px !important;
    gap: 10px !important;
  }
  .header-actions {
    display: none !important;
  }
}

/* ============================================================
   小屏移动端（480px以下）
   ============================================================ */
@media (max-width: 480px) {
  .site-logo {
    height: 62px !important;
  }
  .site-logo .logo-brand,
  .logo-brand {
    height: 44px !important;
    max-height: 44px !important;
  }
  .header-inner {
    height: 62px !important;
    gap: 8px !important;
  }
}


/* ==================== Desktop: Logo & Header ==================== */
.logo-brand {
  height: 150px;
  width: auto;
  max-height: 150px;
  display: block;
  object-fit: contain;
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 160px;
  gap: 40px;
}

.main-nav { 
  display: flex; 
  align-items: center; 
  gap: 4px; 
  flex: 1; 
  justify-content: center; 
}

.header-actions {
  display: flex !important;
  align-items: center;
  gap: 16px;
  flex-shrink: 0;
  margin-left: 20px;
  position: relative;
  z-index: 10;
}
/*
Theme Name: 声爱斯 - 专业隔音建材与工程
Theme URI: https://shengaisi.com
Author: 天津东斯亿建材有限公司
Description: 简约高端风格的专业隔音工程公司主题，声爱斯品牌官网，适用于声学工程、隔音建材、家庭隔音、琴房影音室、商业空间等业务。
Version: 3.3.0
License: GNU General Public License v2 or later
License URI: http://www.gnu.org/licenses/gpl-2.0.html
Text Domain: shengjing
Tags: 简约, 高端, 企业官网, 工程公司, 响应式
*/

@import url('https://fonts.googleapis.com/css2?family=Noto+Serif+SC:wght@400;500;600;700&family=Noto+Sans+SC:wght@300;400;500;600;700&display=swap');

:root {
  --color-primary: #0f3d2e;
  --color-primary-dark: #0a2d22;
  --color-primary-light: #1a5c47;
  --color-secondary: #1c1c1c;
  --color-accent: #c9a961;
  --color-accent-light: #e0c98a;
  --color-accent-dark: #a88b45;
  --color-bg: #fafaf8;
  --color-bg-alt: #f4f3ef;
  --color-bg-dark: #111815;
  --color-bg-card: #ffffff;
  --color-text: #2c2c2c;
  --color-text-light: #6b6b6b;
  --color-text-muted: #9a9a9a;
  --color-text-white: #ffffff;
  --color-border: #e8e6e0;
  --color-border-dark: #d4d0c6;
  --shadow-xs: 0 1px 2px rgba(0,0,0,0.04);
  --shadow-sm: 0 2px 8px rgba(0,0,0,0.06);
  --shadow-md: 0 4px 16px rgba(0,0,0,0.08);
  --shadow-lg: 0 12px 32px rgba(0,0,0,0.12);
  --shadow-xl: 0 20px 60px rgba(0,0,0,0.18);
  --shadow-gold: 0 4px 20px rgba(201,169,97,0.3);
  --radius-sm: 4px;
  --radius-md: 8px;
  --radius-lg: 12px;
  --radius-xl: 20px;
  --radius-full: 9999px;
  --font-serif: 'Noto Serif SC', 'Songti SC', 'SimSun', Georgia, serif;
  --font-sans: 'Noto Sans SC', -apple-system, BlinkMacSystemFont, 'Segoe UI', 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', sans-serif;
  --transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-fast: all 0.2s ease;
  --container-max: 1280px;
}

* { margin: 0; padding: 0; box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.8;
  color: var(--color-text);
  background: var(--color-bg);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
}

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

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

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

h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-serif);
  font-weight: 600;
  line-height: 1.4;
  color: var(--color-secondary);
  margin-bottom: 0.6em;
  letter-spacing: -0.01em;
}

h1 { font-size: clamp(2.2rem, 4.5vw, 3.5rem); font-weight: 700; }
h2 { font-size: clamp(1.6rem, 3vw, 2.4rem); font-weight: 700; }
h3 { font-size: clamp(1.2rem, 2vw, 1.5rem); font-weight: 600; }
h4 { font-size: 1.1rem; font-weight: 600; }

p { margin-bottom: 1em; }

::selection {
  background: var(--color-accent);
  color: var(--color-secondary);
}

.container {
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 32px;
}

.container-fluid {
  max-width: 1440px;
  margin: 0 auto;
  padding: 0 32px;
}

/* ========== Header ========== */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  background: rgba(255,255,255,0.92);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  transition: var(--transition);
  border-bottom: 1px solid transparent;
}

.site-header.scrolled {
  box-shadow: var(--shadow-sm);
  border-bottom-color: var(--color-border);
  background: rgba(255,255,255,0.98);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 140px;
  gap: 40px;
}











.main-nav { display: flex; align-items: center; gap: 4px; flex: 1; justify-content: center; }

.main-nav a {
  padding: 10px 18px;
  color: var(--color-text);
  font-size: 0.95rem;
  font-weight: 500;
  border-radius: var(--radius-sm);
  position: relative;
  transition: var(--transition-fast);
}

.main-nav a:hover,
.main-nav a.current-menu-item {
  color: var(--color-primary);
}

.main-nav a.current-menu-item::after {
  content: '';
  position: absolute;
  bottom: 2px;
  left: 18px;
  right: 18px;
  height: 2px;
  background: linear-gradient(90deg, var(--color-accent) 0%, var(--color-accent-dark) 100%);
  border-radius: 2px;
}

.nav-cta {
  background: linear-gradient(135deg, var(--color-accent) 0%, var(--color-accent-dark) 100%);
  color: var(--color-text-white) !important;
  padding: 12px 28px !important;
  border-radius: var(--radius-full) !important;
  font-weight: 600 !important;
  margin-left: 20px;
  box-shadow: var(--shadow-gold);
  position: relative;
  overflow: hidden;
}

.nav-cta::before {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(255,255,255,0.3), transparent);
  transition: left 0.6s ease;
}

.nav-cta:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 30px rgba(201,169,97,0.45);
  color: var(--color-text-white) !important;
}

.nav-cta:hover::before { left: 100%; }

.menu-toggle {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  padding: 8px;
}

.menu-toggle span {
  display: block;
  width: 28px;
  height: 2px;
  background: var(--color-secondary);
  margin: 6px 0;
  transition: var(--transition);
}

/* ========== Hero Slider ========== */
.hero-slider {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  padding: 120px 0 80px;
  background: var(--color-bg-dark);
  overflow: hidden;
}

.slide {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  opacity: 0;
  transition: opacity 1s ease;
  display: flex;
  align-items: center;
}

.slide.active { opacity: 1; }

.slide-bg {
  position: absolute;
  inset: 0;
  background-size: cover;
  background-position: center;
}

.slide-bg::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(11,29,22,0.85) 0%, rgba(17,24,21,0.75) 100%);
}

.slide-bg::after {
  content: '';
  position: absolute;
  inset: 0;
  background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 100 100"><defs><pattern id="grain" width="100" height="100" patternUnits="userSpaceOnUse"><circle cx="25" cy="25" r="0.5" fill="rgba(255,255,255,0.04)"/><circle cx="75" cy="75" r="0.5" fill="rgba(255,255,255,0.03)"/><circle cx="50" cy="10" r="0.3" fill="rgba(255,255,255,0.02)"/></pattern></defs><rect fill="url(%23grain)" width="100" height="100"/></svg>');
  opacity: 0.6;
}

.slide-content {
  position: relative;
  z-index: 2;
  max-width: 720px;
}

.slide-label {
  display: inline-block;
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 4px;
  color: var(--color-accent);
  text-transform: uppercase;
  margin-bottom: 24px;
  padding-bottom: 12px;
  border-bottom: 1px solid rgba(201,169,97,0.4);
}

.slide-content h1 {
  color: var(--color-text-white);
  margin-bottom: 24px;
  line-height: 1.25;
  font-weight: 700;
}

.slide-content h1 .accent {
  color: var(--color-accent);
  position: relative;
}

.slide-content h1 .accent::after {
  content: '';
  position: absolute;
  bottom: 4px;
  left: 0;
  right: 0;
  height: 8px;
  background: rgba(201,169,97,0.2);
  z-index: -1;
}

.slide-subtitle {
  font-size: 1.15rem;
  color: rgba(255,255,255,0.75);
  margin-bottom: 40px;
  max-width: 560px;
  line-height: 1.9;
}

.slide-buttons {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
}

.slider-nav {
  position: absolute;
  bottom: 40px;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  gap: 12px;
  z-index: 10;
}

.slider-dot {
  width: 40px;
  height: 3px;
  background: rgba(255,255,255,0.25);
  border: none;
  cursor: pointer;
  border-radius: 2px;
  transition: var(--transition);
  padding: 0;
}

.slider-dot.active {
  background: var(--color-accent);
  width: 60px;
}

.slider-arrow {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  width: 56px;
  height: 56px;
  border-radius: var(--radius-full);
  background: rgba(255,255,255,0.08);
  border: 1px solid rgba(255,255,255,0.15);
  color: var(--color-text-white);
  font-size: 1.3rem;
  cursor: pointer;
  z-index: 10;
  transition: var(--transition);
  display: flex;
  align-items: center;
  justify-content: center;
}

.slider-arrow:hover {
  background: var(--color-accent);
  border-color: var(--color-accent);
  color: var(--color-secondary);
}

.slider-arrow.prev { left: 32px; }
.slider-arrow.next { right: 32px; }

.hero-badge-float {
  position: absolute;
  right: 8%;
  top: 50%;
  transform: translateY(-50%);
  z-index: 5;
  text-align: right;
}

.badge-stat {
  background: rgba(255,255,255,0.06);
  backdrop-filter: blur(10px);
  border: 1px solid rgba(255,255,255,0.1);
  padding: 24px 32px;
  border-radius: var(--radius-lg);
  margin-bottom: 16px;
}

.badge-stat .number {
  font-family: var(--font-serif);
  font-size: 2.8rem;
  font-weight: 700;
  color: var(--color-accent);
  line-height: 1;
}

.badge-stat .label {
  font-size: 0.85rem;
  color: rgba(255,255,255,0.7);
  margin-top: 6px;
  letter-spacing: 1px;
}

/* ========== Buttons ========== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  padding: 16px 36px;
  font-size: 0.95rem;
  font-weight: 600;
  border-radius: var(--radius-full);
  cursor: pointer;
  transition: var(--transition);
  border: 2px solid transparent;
  text-align: center;
  letter-spacing: 0.5px;
  position: relative;
  overflow: hidden;
}

.btn-primary {
  background: linear-gradient(135deg, var(--color-accent) 0%, var(--color-accent-dark) 100%);
  color: var(--color-text-white);
  border-color: var(--color-accent);
  box-shadow: var(--shadow-gold);
}

.btn-primary:hover {
  transform: translateY(-3px);
  box-shadow: 0 10px 30px rgba(201,169,97,0.5);
  color: var(--color-text-white);
}

.btn-outline {
  background: transparent;
  color: var(--color-text-white);
  border-color: rgba(255,255,255,0.4);
}

.btn-outline:hover {
  background: rgba(255,255,255,0.1);
  border-color: var(--color-accent);
  color: var(--color-accent);
}

.btn-outline-dark {
  background: transparent;
  color: var(--color-primary);
  border-color: var(--color-primary);
}

.btn-outline-dark:hover {
  background: var(--color-primary);
  color: var(--color-text-white);
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

.btn-lg {
  padding: 18px 44px;
  font-size: 1rem;
}

/* ========== Sections ========== */
.section {
  padding: 120px 0;
  position: relative;
}

.section-alt {
  background: var(--color-bg-alt);
}

.section-dark {
  background: linear-gradient(180deg, var(--color-bg-dark) 0%, #0d1411 100%);
  color: var(--color-text-white);
}

.section-dark h1,
.section-dark h2,
.section-dark h3,
.section-dark h4,
.section-dark h5,
.section-dark h6 {
  color: #fff !important;
}

.section-header {
  text-align: center;
  margin-bottom: 72px;
  max-width: 720px;
  margin-left: auto;
  margin-right: auto;
}

.section-label {
  display: inline-block;
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--color-accent);
  text-transform: uppercase;
  letter-spacing: 5px;
  margin-bottom: 20px;
  padding: 6px 16px;
  border: 1px solid rgba(201,169,97,0.3);
  border-radius: var(--radius-full);
}

.section-dark .section-label {
  color: var(--color-accent);
  border-color: rgba(201,169,97,0.4);
}

.section-header h2 {
  margin-bottom: 20px;
}

.section-header h2 .accent {
  color: var(--color-primary);
}

.section-dark .section-header h2 .accent {
  color: var(--color-accent);
}

.section-header p {
  font-size: 1.05rem;
  color: var(--color-text-light);
  line-height: 1.9;
}

.section-dark .section-header p {
  color: rgba(255,255,255,0.65);
}

/* ========== Stats Bar ========== */
.stats-bar {
  padding: 56px 0;
  background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-dark) 100%);
  color: var(--color-text-white);
  position: relative;
  overflow: hidden;
}

.stats-bar::before {
  content: '';
  position: absolute;
  top: -50%;
  right: -10%;
  width: 500px;
  height: 500px;
  background: radial-gradient(circle, rgba(201,169,97,0.12) 0%, transparent 70%);
  border-radius: 50%;
}

.stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 48px;
  text-align: center;
  position: relative;
  z-index: 1;
}

.stat-item .number {
  font-family: var(--font-serif);
  font-size: 3.2rem;
  font-weight: 700;
  line-height: 1;
  margin-bottom: 10px;
  color: var(--color-accent);
}

.stat-item .label {
  font-size: 0.9rem;
  opacity: 0.85;
  letter-spacing: 1px;
}

/* ========== Services Grid ========== */
.services-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 28px;
}

.service-card {
  background: var(--color-bg-card);
  padding: 48px 32px;
  border-radius: var(--radius-lg);
  text-align: center;
  transition: var(--transition);
  border: 1px solid var(--color-border);
  position: relative;
  overflow: hidden;
}

.service-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--color-accent) 0%, var(--color-accent-dark) 100%);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.4s ease;
}

.service-card:hover {
  transform: translateY(-10px);
  box-shadow: var(--shadow-xl);
  border-color: transparent;
}

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

.service-icon {
  width: 72px;
  height: 72px;
  margin: 0 auto 28px;
  background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-light) 100%);
  border-radius: var(--radius-lg);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 32px;
  transition: var(--transition);
}

.service-card:hover .service-icon {
  transform: scale(1.1) rotate(-5deg);
  box-shadow: 0 8px 24px rgba(15,61,46,0.3);
}

.service-card h3 {
  margin-bottom: 14px;
  font-size: 1.2rem;
}

.service-card p {
  color: var(--color-text-light);
  font-size: 0.92rem;
  margin-bottom: 24px;
  line-height: 1.8;
}

.service-link {
  font-weight: 600;
  font-size: 0.88rem;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  color: var(--color-primary);
  letter-spacing: 0.5px;
}

.service-link::after {
  content: '→';
  transition: transform 0.3s ease;
  font-size: 1.1em;
}

.service-card:hover .service-link {
  color: var(--color-accent-dark);
}

.service-card:hover .service-link::after {
  transform: translateX(6px);
}

/* ========== Features ========== */
.features-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 32px;
}

.feature-item {
  text-align: center;
  padding: 32px 24px;
  border-radius: var(--radius-lg);
  transition: var(--transition);
}

.feature-item:hover {
  background: rgba(255,255,255,0.04);
}

.feature-icon {
  width: 64px;
  height: 64px;
  margin: 0 auto 20px;
  background: rgba(201, 169, 97, 0.12);
  border-radius: var(--radius-full);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 26px;
  transition: var(--transition);
}

.feature-item:hover .feature-icon {
  background: var(--color-accent);
  transform: scale(1.1);
}

.feature-item h4 {
  margin-bottom: 10px;
  color: var(--color-text-white);
  font-size: 1.05rem;
}

.feature-item p {
  color: rgba(255,255,255,0.6);
  font-size: 0.88rem;
  margin-bottom: 0;
  line-height: 1.8;
}

/* ========== Cases with Filter ========== */
.cases-filter {
  display: flex;
  justify-content: center;
  gap: 12px;
  margin-bottom: 48px;
  flex-wrap: wrap;
}

.filter-btn {
  padding: 10px 24px;
  border: 1px solid var(--color-border-dark);
  background: var(--color-bg);
  color: var(--color-text);
  border-radius: var(--radius-full);
  cursor: pointer;
  font-size: 0.88rem;
  font-weight: 500;
  transition: var(--transition-fast);
}

.filter-btn:hover,
.filter-btn.active {
  background: var(--color-primary);
  color: var(--color-text-white);
  border-color: var(--color-primary);
}

.cases-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
}

.case-card {
  background: var(--color-bg-card);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: var(--transition);
  box-shadow: var(--shadow-xs);
  border: 1px solid var(--color-border);
}

.case-card:hover {
  transform: translateY(-10px);
  box-shadow: var(--shadow-xl);
  border-color: transparent;
}

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

.case-image::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, rgba(0,0,0,0.4) 0%, transparent 50%);
  opacity: 0;
  transition: var(--transition);
}

.case-card:hover .case-image::after {
  opacity: 1;
}

.case-image img,
.case-image svg {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.6s ease;
}

.case-card:hover .case-image img,
.case-card:hover .case-image svg {
  transform: scale(1.08);
}

.case-content {
  padding: 28px;
}

.case-tag {
  display: inline-block;
  padding: 5px 14px;
  background: rgba(15, 61, 46, 0.08);
  color: var(--color-primary);
  font-size: 0.75rem;
  font-weight: 600;
  border-radius: var(--radius-full);
  margin-bottom: 14px;
  letter-spacing: 0.5px;
}

.case-content h3 {
  font-size: 1.1rem;
  margin-bottom: 12px;
  transition: var(--transition-fast);
}

.case-card:hover .case-content h3 {
  color: var(--color-accent-dark);
}

.case-meta {
  display: flex;
  gap: 20px;
  font-size: 0.82rem;
  color: var(--color-text-muted);
}

.case-center {
  text-align: center;
  margin-top: 56px;
}

/* ========== Materials ========== */
.materials-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}

.material-card {
  position: relative;
  aspect-ratio: 1;
  border-radius: var(--radius-lg);
  overflow: hidden;
  cursor: pointer;
  box-shadow: var(--shadow-sm);
}

.material-card::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, rgba(0,0,0,0.85) 0%, rgba(0,0,0,0.3) 50%, transparent 70%);
  z-index: 1;
  transition: var(--transition);
}

.material-card:hover::before {
  background: linear-gradient(to top, rgba(0,0,0,0.92) 0%, rgba(0,0,0,0.5) 60%, transparent 80%);
}

.material-card img,
.material-card svg {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.6s ease;
}

.material-card:hover img,
.material-card:hover svg {
  transform: scale(1.12);
}

.material-info {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  padding: 28px;
  z-index: 2;
  transform: translateY(8px);
  transition: var(--transition);
}

.material-card:hover .material-info {
  transform: translateY(0);
}

.material-info h4 {
  color: var(--color-text-white);
  margin-bottom: 8px;
  font-size: 1.05rem;
}

.material-info p {
  color: rgba(255,255,255,0.7);
  font-size: 0.82rem;
  margin-bottom: 0;
  opacity: 0;
  transition: var(--transition);
}

.material-card:hover .material-info p {
  opacity: 1;
}

/* ========== Testimonials ========== */
.testimonials-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
}

.testimonial-card {
  background: var(--color-bg-card);
  padding: 36px 32px;
  border-radius: var(--radius-lg);
  position: relative;
  border: 1px solid var(--color-border);
  transition: var(--transition);
}

.testimonial-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-lg);
  border-color: transparent;
}

.testimonial-card::before {
  content: '"';
  position: absolute;
  top: 12px;
  right: 28px;
  font-size: 5rem;
  color: var(--color-accent);
  opacity: 0.15;
  font-family: Georgia, serif;
  line-height: 1;
}

.testimonial-content {
  color: var(--color-text);
  font-size: 0.92rem;
  line-height: 1.9;
  margin-bottom: 28px;
  position: relative;
  z-index: 1;
}

.testimonial-author {
  display: flex;
  align-items: center;
  gap: 14px;
}

.testimonial-avatar {
  width: 52px;
  height: 52px;
  border-radius: var(--radius-full);
  background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-light) 100%);
  color: var(--color-text-white);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 600;
  font-size: 1.1rem;
}

.testimonial-name {
  font-weight: 600;
  color: var(--color-secondary);
  font-size: 0.95rem;
}

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

.testimonial-stars {
  color: var(--color-accent);
  font-size: 1rem;
  margin-bottom: 16px;
  letter-spacing: 2px;
}

/* Testimonials Carousel */
.testimonials-carousel {
  position: relative;
  overflow: hidden;
}

.testimonials-track {
  position: relative;
  min-height: 320px;
}

.testimonials-page {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.5s ease, visibility 0.5s ease;
}

.testimonials-page.active {
  opacity: 1;
  visibility: visible;
  position: relative;
}

.testimonials-nav {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 20px;
  margin-top: 40px;
}

.testimonials-arrow {
  width: 48px;
  height: 48px;
  border-radius: var(--radius-full);
  border: 2px solid var(--color-border);
  background: var(--color-bg-card);
  color: var(--color-text);
  font-size: 1.5rem;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: var(--transition-fast);
  line-height: 1;
}

.testimonials-arrow:hover {
  background: var(--color-primary);
  color: var(--color-text-white);
  border-color: var(--color-primary);
}

.testimonials-dots {
  display: flex;
  gap: 10px;
}

.testimonials-dot {
  width: 10px;
  height: 10px;
  border-radius: var(--radius-full);
  border: none;
  background: var(--color-border-dark);
  cursor: pointer;
  transition: var(--transition-fast);
  padding: 0;
}

.testimonials-dot.active {
  background: var(--color-primary);
  width: 28px;
  border-radius: 5px;
}

.testimonials-dot:hover:not(.active) {
  background: var(--color-text-muted);
}

/* ========== FAQ ========== */
.faq-container {
  max-width: 860px;
  margin: 0 auto;
  position: relative;
  z-index: 99 !important;
}

.faq-item {
  background: var(--color-bg-card);
  border-radius: var(--radius-md);
  margin-bottom: 16px;
  overflow: hidden;
  border: 1px solid var(--color-border);
  transition: var(--transition-fast);
  position: relative;
  z-index: 2;
}

.faq-item:hover {
  border-color: var(--color-border-dark);
}

.faq-item.active {
  border-color: var(--color-primary-light);
  box-shadow: var(--shadow-sm);
}

.faq-question {
  padding: 22px 28px !important;
  cursor: pointer !important;
  display: flex !important;
  justify-content: space-between !important;
  align-items: center !important;
  font-weight: 600 !important;
  color: var(--color-secondary) !important;
  transition: var(--transition-fast) !important;
  font-size: 0.98rem !important;
  position: relative !important;
  z-index: 10 !important;
  user-select: none !important;
  -webkit-tap-highlight-color: transparent !important;
  pointer-events: auto !important;
}

.faq-question * {
  pointer-events: none !important;
}

.faq-question:hover {
  background: var(--color-bg-alt) !important;
}

.faq-item.active .faq-question {
  color: var(--color-primary) !important;
}

.faq-question .icon,
.faq-question .faq-icon {
  font-size: 1.4rem !important;
  color: var(--color-accent) !important;
  transition: transform 0.3s ease !important;
  font-weight: 300 !important;
  line-height: 1 !important;
  flex-shrink: 0 !important;
  margin-left: 12px !important;
  display: inline-block !important;
}

.faq-item.active .faq-question .icon,
.faq-item.active .faq-question .faq-icon {
  transform: rotate(45deg) !important;
}

.faq-answer {
  max-height: 0 !important;
  overflow: hidden !important;
  transition: max-height 0.5s ease !important;
}

.faq-item.active .faq-answer {
  max-height: 5000px !important;
}

.faq-answer-inner {
  padding: 0 28px 24px !important;
  color: var(--color-text-light) !important;
  line-height: 1.9 !important;
  font-size: 0.92rem !important;
}

/* ========== Service Process ========== */
.process-steps {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  max-width: 1100px;
  margin: 0 auto;
}

.step-item {
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: 16px;
  padding: 32px 28px;
  text-align: center;
  transition: transform 0.3s, box-shadow 0.3s;
  position: relative;
}

.step-item:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
  border-color: var(--color-accent);
}

.step-num {
  width: 56px;
  height: 56px;
  margin: 0 auto 20px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--color-primary), var(--color-primary-light));
  color: var(--color-accent);
  font-size: 1.4rem;
  font-weight: 700;
  display: flex;
  align-items: center;
  justify-content: center;
}

.step-item h4 {
  font-size: 1.15rem;
  margin-bottom: 12px;
  color: var(--color-secondary);
}

.step-item p {
  color: var(--color-text-light);
  font-size: 0.92rem;
  line-height: 1.8;
  margin: 0;
}

/* ========== CTA Section ========== */
.cta-section {
  background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-dark) 100%);
  color: var(--color-text-white);
  text-align: center;
  padding: 100px 0;
  position: relative;
  overflow: hidden;
}

.cta-section::before {
  content: '';
  position: absolute;
  top: -50%;
  right: -10%;
  width: 600px;
  height: 600px;
  background: radial-gradient(circle, rgba(201,169,97,0.15) 0%, transparent 70%);
  border-radius: 50%;
}

.cta-section::after {
  content: '';
  position: absolute;
  bottom: -30%;
  left: -10%;
  width: 500px;
  height: 500px;
  background: radial-gradient(circle, rgba(201,169,97,0.08) 0%, transparent 70%);
  border-radius: 50%;
}

.cta-content {
  position: relative;
  z-index: 1;
  max-width: 720px;
  margin: 0 auto;
}

.cta-section h2 {
  color: var(--color-text-white);
  margin-bottom: 20px;
}

.cta-section p {
  font-size: 1.05rem;
  opacity: 0.85;
  margin-bottom: 36px;
}

.cta-buttons {
  display: flex;
  gap: 16px;
  justify-content: center;
  flex-wrap: wrap;
}

/* ========== Contact Form ========== */
.contact-section {
  padding: 120px 0;
}

.contact-wrapper {
  display: grid;
  grid-template-columns: 1fr 1.2fr;
  gap: 64px;
  align-items: start;
}

.contact-info h2 {
  margin-bottom: 20px;
}

.contact-info > p {
  color: var(--color-text-light);
  margin-bottom: 36px;
}

.contact-list {
  list-style: none;
  margin-bottom: 36px;
}

.contact-list li {
  display: flex;
  align-items: flex-start;
  gap: 16px;
  padding: 16px 0;
  border-bottom: 1px solid var(--color-border);
}

.contact-list li:last-child {
  border-bottom: none;
}

.contact-list .icon {
  width: 44px;
  height: 44px;
  background: rgba(15,61,46,0.08);
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 18px;
  flex-shrink: 0;
}

.contact-list .text strong {
  display: block;
  color: var(--color-secondary);
  margin-bottom: 4px;
  font-size: 0.9rem;
}

.contact-list .text span {
  color: var(--color-text-light);
  font-size: 0.92rem;
}

.contact-form-wrapper {
  background: var(--color-bg-card);
  padding: 48px;
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-md);
  border: 1px solid var(--color-border);
}

.contact-form-wrapper h3 {
  margin-bottom: 28px;
  text-align: center;
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
  margin-bottom: 20px;
}

.form-group {
  margin-bottom: 20px;
}

.form-group label {
  display: block;
  font-weight: 600;
  margin-bottom: 10px;
  color: var(--color-secondary);
  font-size: 0.88rem;
}

.form-group input,
.form-group select,
.form-group textarea {
  width: 100%;
  padding: 14px 18px;
  font-size: 0.95rem;
  font-family: inherit;
  border: 2px solid var(--color-border);
  border-radius: var(--radius-md);
  transition: var(--transition-fast);
  background: var(--color-bg);
  color: var(--color-text);
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 4px rgba(15,61,46,0.08);
  background: var(--color-bg-card);
}

.form-group textarea {
  resize: vertical;
  min-height: 140px;
}

.form-submit {
  text-align: center;
  margin-top: 12px;
}

.form-success {
  padding: 20px;
  background: rgba(15,61,46,0.08);
  border: 1px solid var(--color-primary-light);
  border-radius: var(--radius-md);
  color: var(--color-primary);
  text-align: center;
  margin-bottom: 20px;
}

/* ========== Footer ========== */
.site-footer {
  background: linear-gradient(180deg, #0d1411 0%, #080c0a 100%);
  color: rgba(255,255,255,0.6);
  padding: 80px 0 0;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr 1.2fr;
  gap: 56px;
  padding-bottom: 56px;
}

.footer-brand h3 {
  color: var(--color-text-white);
  margin-bottom: 18px;
  font-family: var(--font-serif);
  font-size: 1.25rem;
  letter-spacing: 2px;
}

.footer-brand > p {
  font-size: 0.88rem;
  line-height: 1.9;
  margin-bottom: 24px;
}

.footer-contact {
  list-style: none;
}

.footer-contact li {
  display: flex;
  gap: 12px;
  padding: 8px 0;
  font-size: 0.88rem;
}

.footer-contact .icon {
  color: var(--color-accent);
  flex-shrink: 0;
}

.footer-col h4 {
  color: var(--color-text-white);
  font-size: 0.95rem;
  margin-bottom: 22px;
  font-weight: 600;
  position: relative;
  padding-bottom: 12px;
}

.footer-col h4::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 32px;
  height: 2px;
  background: var(--color-accent);
  border-radius: 1px;
}

.footer-links {
  list-style: none;
}

.footer-links li {
  padding: 7px 0;
}

.footer-links a {
  color: rgba(255,255,255,0.55);
  font-size: 0.88rem;
  transition: var(--transition-fast);
}

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

.footer-qr-section {
  text-align: center;
}

.footer-qr {
  background: rgba(255,255,255,0.04);
  border: 1px solid rgba(255,255,255,0.08);
  padding: 24px;
  border-radius: var(--radius-lg);
  margin-bottom: 16px;
}

.footer-qr .qr-code {
  width: 140px;
  height: 140px;
  background: var(--color-text-white);
  border-radius: var(--radius-sm);
  margin: 0 auto 14px;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 8px;
}

.footer-qr .qr-code img {
  width: 100%;
  height: 100%;
  object-fit: contain;
}

.footer-qr h5 {
  color: var(--color-text-white);
  font-size: 0.9rem;
  margin-bottom: 6px;
}

.footer-qr p {
  font-size: 0.78rem;
  margin-bottom: 0;
  color: rgba(255,255,255,0.5);
}

.footer-contact-links {
  display: flex;
  gap: 12px;
  justify-content: center;
  margin-top: 16px;
}

.footer-contact-links a {
  padding: 8px 16px;
  background: rgba(255,255,255,0.06);
  border: 1px solid rgba(255,255,255,0.1);
  border-radius: var(--radius-full);
  color: rgba(255,255,255,0.7);
  font-size: 0.78rem;
  transition: var(--transition-fast);
}

.footer-contact-links a:hover {
  background: var(--color-accent);
  border-color: var(--color-accent);
  color: var(--color-secondary);
}

.footer-bottom {
  border-top: 1px solid rgba(255,255,255,0.08);
  padding: 24px 0;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 16px;
}

.footer-bottom p {
  font-size: 0.82rem;
  margin-bottom: 0;
}

.footer-bottom a {
  color: rgba(255,255,255,0.5);
}

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

/* ========== Floating Widget ========== */
.floating-widget {
  position: fixed;
  right: 28px;
  bottom: 28px;
  z-index: 999;
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.widget-btn {
  width: 60px;
  height: 60px;
  border-radius: var(--radius-full);
  background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-dark) 100%);
  color: var(--color-text-white);
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: var(--shadow-lg);
  cursor: pointer;
  transition: var(--transition);
  border: none;
  font-size: 24px;
  position: relative;
}

.widget-btn::after {
  content: '';
  position: absolute;
  inset: -3px;
  border-radius: var(--radius-full);
  background: var(--color-accent);
  z-index: -1;
  opacity: 0;
  transition: var(--transition);
}

.widget-btn:hover {
  transform: scale(1.08);
  box-shadow: 0 12px 36px rgba(15,61,46,0.4);
}

.widget-btn:hover::after {
  opacity: 0.3;
}

.widget-btn.wx {
  background: linear-gradient(135deg, #07C160 0%, #06ad56 100%);
}

.widget-btn.wx::after {
  background: #07C160;
}

.widget-btn.phone {
  background: linear-gradient(135deg, var(--color-accent) 0%, var(--color-accent-dark) 100%);
}

.widget-btn.phone::after {
  background: var(--color-accent);
}

.widget-popup {
  position: absolute;
  right: 76px;
  bottom: 0;
  background: var(--color-bg-card);
  padding: 24px;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-xl);
  min-width: 260px;
  opacity: 0;
  visibility: hidden;
  transform: translateX(10px);
  transition: var(--transition);
  border: 1px solid var(--color-border);
}

#wxPopup {
  bottom: auto;
  top: 0;
}

#phonePopup {
  bottom: auto;
  top: 74px;
}

.widget-popup.show {
  opacity: 1;
  visibility: visible;
  transform: translateX(0);
}

.widget-popup h4 {
  font-size: 0.95rem;
  margin-bottom: 16px;
  color: var(--color-secondary);
  text-align: center;
}

.widget-popup .qr {
  width: 180px;
  height: 180px;
  margin: 0 auto 14px;
  background: var(--color-bg-alt);
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 8px;
}

.widget-popup .qr img {
  width: 100%;
  height: 100%;
  object-fit: contain;
}

.widget-popup p {
  font-size: 0.82rem;
  text-align: center;
  color: var(--color-text-light);
  margin-bottom: 0;
}

.widget-phone-number {
  font-size: 1.2rem;
  font-weight: 700;
  color: var(--color-primary);
  text-align: center;
  display: block;
  margin-bottom: 4px;
  font-family: var(--font-serif);
}

.widget-phone-label {
  font-size: 0.78rem;
  text-align: center;
  color: var(--color-text-muted);
  display: block;
  margin-bottom: 12px;
}

.widget-actions {
  display: flex;
  gap: 10px;
  margin-top: 16px;
}

.widget-actions a {
  flex: 1;
  padding: 10px;
  text-align: center;
  border-radius: var(--radius-md);
  font-size: 0.8rem;
  font-weight: 600;
  transition: var(--transition-fast);
}

.widget-actions a.primary {
  background: var(--color-primary);
  color: var(--color-text-white);
}

.widget-actions a.primary:hover {
  background: var(--color-primary-dark);
}

.widget-actions a.secondary {
  background: var(--color-bg-alt);
  color: var(--color-text);
  border: 1px solid var(--color-border);
}

.widget-actions a.secondary:hover {
  border-color: var(--color-primary);
  color: var(--color-primary);
}

/* ========== Page Header ========== */
.page-header {
  padding: 180px 0 100px;
  background: linear-gradient(135deg, var(--color-secondary) 0%, var(--color-bg-dark) 100%);
  color: var(--color-text-white);
  text-align: center;
  position: relative;
  overflow: hidden;
  background-size: cover;
  background-position: center;
  background-repeat: no-repeat;
}

.page-header::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(15, 52, 40, 0.55) 0%, rgba(10, 30, 25, 0.65) 100%);
  z-index: 0;
}

.page-header::after {
  content: '';
  position: absolute;
  inset: 0;
  background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 100 100"><defs><pattern id="grain" width="100" height="100" patternUnits="userSpaceOnUse"><circle cx="25" cy="25" r="0.5" fill="rgba(255,255,255,0.03)"/></pattern></defs><rect fill="url(%23grain)" width="100" height="100"/></svg>');
  opacity: 0.5;
  z-index: 0;
}

.page-header .container {
  position: relative;
  z-index: 1;
}

.page-header h1 {
  color: var(--color-text-white);
  margin-bottom: 16px;
}

.breadcrumb {
  font-size: 0.85rem;
  opacity: 0.7;
}

.breadcrumb a {
  color: var(--color-accent);
}

/* ========== Content Area ========== */
.content-area {
  padding: 80px 0;
}

.page-content {
  max-width: 820px;
  margin: 0 auto;
}

.page-content h2 {
  margin-top: 48px;
  padding-top: 24px;
  border-top: 1px solid var(--color-border);
  font-family: var(--font-serif);
}

.page-content h2:first-child {
  margin-top: 0;
  padding-top: 0;
  border-top: none;
}

.page-content ul,
.page-content ol {
  padding-left: 24px;
  margin-bottom: 1em;
}

.page-content li {
  margin-bottom: 0.5em;
}

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

.animate-in {
  animation: fadeInUp 0.7s ease forwards;
}

/* ========== Responsive ========== */
@media (max-width: 1200px) {
  .hero-badge-float { display: none; }
  .services-grid,
  .features-grid,
  .materials-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .cases-grid,
  .testimonials-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .footer-grid {
    grid-template-columns: 1fr 1fr;
    gap: 40px;
  }
  .contact-wrapper {
    grid-template-columns: 1fr;
    gap: 48px;
  }
}

@media (max-width: 900px) {
  .stats-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 36px;
  }
  .slider-arrow { display: none; }
}

@media (max-width: 768px) {
  .container { padding: 0 18px; }
  
  /* 移动端Logo和Header */
  .logo-brand {
    height: 52px !important;
    max-height: 52px !important;
  }
  .header-inner {
    height: 72px !important;
    gap: 16px !important;
  }
  .header-actions {
    display: none !important;
  }
  
  .section { padding: 56px 0; }
  
  .section-header { margin-bottom: 32px; text-align: center; }
  
  .section-header h2 { font-size: 1.5rem; line-height: 1.4; }
  .section-header p { font-size: 0.88rem; line-height: 1.7; margin-top: 8px; }
  .section-label { font-size: 0.68rem; letter-spacing: 2px; margin-bottom: 10px; }

  .header-inner { height: 72px; gap: 16px; }
  .header-actions { display: none; }
  
  .main-nav {
    position: fixed;
    top: 64px;
    left: 0; right: 0;
    background: #fff;
    flex-direction: column;
    padding: 20px;
    gap: 2px;
    box-shadow: 0 8px 24px rgba(0,0,0,0.08);
    transform: translateY(-120%);
    opacity: 0;
    visibility: hidden;
    transition: all 0.3s ease;
    border-bottom: 1px solid #eee;
    z-index: 99;
  }
  .main-nav.show { transform: translateY(0); opacity: 1; visibility: visible; }
  .main-nav a { width: 100%; padding: 14px 16px; border-radius: 8px; font-size: 0.95rem; }
  .main-nav a:hover { background: #f5f5f5; }
  .main-nav a.current-menu-item::after { display: none; }
  
  .mobile-lang-switcher {
    display: flex; gap: 8px;
    padding: 12px 16px 4px;
    border-top: 1px solid #eee;
    margin-top: 8px;
  }
  .mobile-lang-switcher button {
    flex: 1; padding: 8px 12px;
    border: 1px solid #ddd; border-radius: 6px;
    background: transparent; font-size: 0.85rem; cursor: pointer;
  }
  .mobile-lang-switcher button.active {
    background: var(--color-primary); color: #fff; border-color: var(--color-primary);
  }
  .mobile-cta {
    display: block; margin: 12px 16px 8px;
    text-align: center; padding: 12px 20px;
    background: var(--color-primary); color: #fff;
    border-radius: 8px; text-decoration: none;
    font-size: 0.95rem; font-weight: 500;
  }
  
  .menu-toggle { display: block; }
  
  .hero-slider { min-height: auto; padding: 90px 0 50px; }
  .slide-label { font-size: 0.65rem; letter-spacing: 2px; margin-bottom: 14px; }
  .slide-content h1 { font-size: 1.7rem !important; line-height: 1.35; margin-bottom: 14px; }
  .slide-subtitle {
    font-size: 0.9rem; line-height: 1.75; margin-bottom: 24px;
    display: -webkit-box; -webkit-line-clamp: 3;
    -webkit-box-orient: vertical; overflow: hidden;
  }
  .slide-buttons { flex-direction: column; gap: 10px; }
  .btn { width: 100%; padding: 12px 20px; font-size: 0.9rem; }
  .slider-dot { width: 24px; }
  .slider-dot.active { width: 36px; }
  
  .stats-grid { grid-template-columns: repeat(3, 1fr); gap: 20px 12px; }
  .stats-grid .stat-item:nth-child(n+4) { display: none; }
  .stat-item .number { font-size: 1.6rem; font-weight: 700; }
  .stat-item .label { font-size: 0.75rem; line-height: 1.4; }
  
  .services-grid, .features-grid, .materials-grid,
  .cases-grid, .testimonials-grid {
    grid-template-columns: 1fr; gap: 16px;
  }
  
  .cases-filter {
    display: flex; flex-wrap: nowrap; overflow-x: auto;
    gap: 8px; padding-bottom: 4px; margin-bottom: 20px;
    -webkit-overflow-scrolling: touch;
  }
  .cases-filter::-webkit-scrollbar { display: none; }
  .filter-btn {
    padding: 7px 14px; font-size: 0.8rem;
    white-space: nowrap; flex-shrink: 0;
  }
  
  .case-card .case-content { padding: 16px 16px 18px; }
  .case-card h3 { font-size: 1rem; line-height: 1.5; margin-bottom: 8px; }
  .case-card p {
    font-size: 0.82rem; line-height: 1.65;
    display: -webkit-box; -webkit-line-clamp: 2;
    -webkit-box-orient: vertical; overflow: hidden;
    margin: 8px 0 12px;
  }
  .case-tag { font-size: 0.72rem; padding: 3px 10px; }
  .case-meta { font-size: 0.75rem; gap: 12px; flex-wrap: wrap; }
  
  .service-card { padding: 28px 22px; }
  .service-card h4 { font-size: 1.05rem; }
  .service-card p {
    font-size: 0.85rem; line-height: 1.7;
    display: -webkit-box; -webkit-line-clamp: 2;
    -webkit-box-orient: vertical; overflow: hidden;
  }
  .service-card .feature-icon { font-size: 1.8rem; }
  
  .form-row { grid-template-columns: 1fr; gap: 0; }
  .contact-form-wrapper { padding: 28px 20px; }
  
  .faq-question { padding: 14px 16px; font-size: 0.88rem; line-height: 1.55; }
  .faq-answer-inner { padding: 0 16px 16px; font-size: 0.85rem; line-height: 1.75; }

  .faq-item.active .faq-answer {
    max-height: 2000px !important;
  }

  .process-steps {
    grid-template-columns: repeat(2, 1fr);
    gap: 16px;
  }
  .step-item { padding: 24px 18px; }
  .step-num { width: 48px; height: 48px; font-size: 1.2rem; margin-bottom: 14px; }
  .step-item h4 { font-size: 1rem; margin-bottom: 8px; }
  .step-item p { font-size: 0.85rem; line-height: 1.7; }

  
  .footer-grid { grid-template-columns: 1fr; gap: 28px; padding-bottom: 28px; }
  .footer-col h4 { font-size: 0.95rem; margin-bottom: 14px; }
  .footer-col li, .footer-col p { font-size: 0.82rem; line-height: 1.8; }
  .footer-qr h5 { font-size: 0.82rem; }
  .footer-qr p { font-size: 0.75rem; }
  .footer-contact-links a { font-size: 0.82rem; }
  .footer-bottom {
    flex-direction: column; text-align: center;
    padding: 18px 0; font-size: 0.75rem; line-height: 1.8; gap: 6px;
  }
  
  .floating-widget { right: 14px; bottom: 14px; gap: 8px; }
  .floating-widget .widget-btn:nth-child(2),
  .floating-widget .widget-btn:nth-child(3) { display: none; }
  .widget-btn { width: 48px; height: 48px; font-size: 20px; }
  .widget-popup { right: 58px; min-width: 200px; padding: 16px; bottom: 0; }
  .widget-popup .qr { width: 130px; height: 130px; }
  .widget-popup h4 { font-size: 0.9rem; }
  .widget-popup p { font-size: 0.8rem; }
  
  .cta-section { padding: 56px 0; }
  .cta-section h2 { font-size: 1.4rem; line-height: 1.4; }
  .cta-section p { font-size: 0.88rem; line-height: 1.7; }
  .cta-buttons { flex-direction: column; gap: 10px; }
  
  .page-header { padding: 120px 0 56px; }
  .page-header h1 { font-size: 1.6rem; }
  .page-header p { font-size: 0.9rem; }
  .content-area { padding: 48px 0; }

@media (max-width: 480px) {
  .stats-grid { grid-template-columns: repeat(2, 1fr); gap: 20px 12px; }
  .stats-grid .stat-item:nth-child(n+3) { display: none; }
  .stat-item .number { font-size: 1.5rem; }
  .stat-item .label { font-size: 0.72rem; }
  .hero-badge-float { display: none; }
  .slide-content h1 { font-size: 1.5rem !important; }
  .slide-subtitle { font-size: 0.85rem; }
  .section-header h2 { font-size: 1.35rem; }
  .section { padding: 48px 0; }
  .header-inner { height: 68px; }
  .main-nav { top: 60px; }
  .process-steps {
    grid-template-columns: 1fr;
    gap: 14px;
  }
}

/* Header Actions */
.header-actions {
    display: flex !important;
    align-items: center;
    gap: 16px;
    flex-shrink: 0;
    margin-left: 20px;
    position: relative;
    z-index: 10;
}

/* Language Switcher */
.lang-switcher {
    display: inline-flex;
    align-items: center;
    background: var(--color-bg-alt);
    border-radius: 8px;
    padding: 3px;
    gap: 2px;
    position: relative;
    z-index: 1;
}
.lang-switcher button {
    padding: 6px 14px;
    border: none;
    background: transparent;
    border-radius: 6px;
    cursor: pointer;
    font-size: 0.82rem;
    font-weight: 500;
    color: var(--color-text-light);
    transition: all 0.2s ease;
    font-family: var(--font-sans);
    line-height: 1.2;
}
.lang-switcher button:hover {
    color: var(--color-primary);
}
.lang-switcher button.active {
    background: var(--color-primary);
    color: var(--color-text-white);
    box-shadow: 0 2px 6px rgba(15, 61, 46, 0.25);
}

@media (max-width: 1024px) {
    .header-actions {
        gap: 10px;
    }
    .lang-switcher button {
        padding: 5px 10px;
        font-size: 0.78rem;
    }
}


/* ==================== Header & Logo 高端样式 ==================== */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(255, 255, 255, 0.96);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid rgba(15, 61, 46, 0.08);
  transition: all 0.3s ease;
}
.site-header.scrolled {
  box-shadow: 0 4px 24px rgba(15, 61, 46, 0.1);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 140px;
  gap: 40px;
}

.site-logo {
  display: flex;
  align-items: center;
  gap: 14px;
  font-weight: 700;
  color: var(--color-secondary);
  transition: transform 0.3s ease;
}
.site-logo:hover {
  transform: translateY(-1px);
}

.site-logo img:not(.logo-svg) {
  height: 48px;
  width: auto;
  border-radius: 8px;
  box-shadow: 0 2px 10px rgba(15, 61, 46, 0.12);
}

.logo-text {
  display: flex;
  flex-direction: column;
  line-height: 1.2;
}

.logo-cn {
  font-family: var(--font-serif);
  font-size: 1.3rem;
  color: var(--color-primary);
  font-weight: 700;
  letter-spacing: 3px;
}

.logo-en {
  font-size: 0.68rem;
  color: var(--color-accent-dark);
  letter-spacing: 4px;
  text-transform: uppercase;
  margin-top: 3px;
  font-weight: 600;
}

/* ========== 新版精简Footer ========== */
.footer-grid-simple {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 64px;
  padding-bottom: 56px;
  align-items: start;
}

.footer-contact-col {
  max-width: 480px;
}

.footer-contact-list {
  list-style: none;
  padding: 0;
  margin: 0;
}

.footer-contact-list li {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  padding: 10px 0;
  font-size: 0.9rem;
  color: rgba(255,255,255,0.7);
  line-height: 1.7;
}

.footer-contact-list .contact-icon {
  font-size: 1.1rem;
  flex-shrink: 0;
  margin-top: 2px;
}

.footer-social-col {
  text-align: center;
}

.social-qr-grid {
  display: flex;
  gap: 16px;
  justify-content: center;
  flex-wrap: nowrap;
  margin-bottom: 8px;
}

.social-qr-item {
  text-align: center;
  flex-shrink: 0;
  cursor: pointer;
}

.social-qr-code {
  width: 95px !important;
  background: #fff !important;
  border-radius: 12px !important;
  margin: 0 auto !important;
  display: flex !important;
  align-items: center !important;
  justify-content: center !important;
  overflow: hidden !important;
  box-shadow: 0 4px 12px rgba(0,0,0,0.2) !important;
  transition: all 0.35s cubic-bezier(0.4, 0, 0.2, 1) !important;
  max-height: 0 !important;
  opacity: 0 !important;
  padding: 0 !important;
  border: 0 solid rgba(255,255,255,0.2) !important;
  visibility: hidden !important;
}

.social-qr-item.active .social-qr-code {
  max-height: 150px !important;
  opacity: 1 !important;
  margin-bottom: 8px !important;
  padding: 6px !important;
  border-width: 1px !important;
  visibility: visible !important;
}

.social-qr-code:hover {
  transform: translateY(-4px);
}

.social-qr-code img,
.social-qr-code svg {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  aspect-ratio: 1 / 1;
}

.social-qr-label {
  font-size: 0.82rem;
  color: rgba(255,255,255,0.7);
  transition: all 0.3s;
  display: inline-block;
  padding: 4px 12px;
  border-radius: 999px;
  border: 1px solid transparent;
}

.social-qr-item.active .social-qr-label {
  color: #0f3d2e;
  background: #c9a961;
  border-color: #c9a961;
}

.contact-link-btn {
  padding: 8px 18px;
  background: rgba(255,255,255,0.06);
  border: 1px solid rgba(255,255,255,0.12);
  border-radius: 999px;
  color: rgba(255,255,255,0.75);
  font-size: 0.82rem;
  transition: all 0.3s;
  text-decoration: none;
  display: inline-block;
}

.contact-link-btn:hover {
  background: var(--color-accent);
  border-color: var(--color-accent);
  color: var(--color-secondary);
}

@media (max-width: 768px) {
  .footer-grid-simple {
    grid-template-columns: 1fr;
    gap: 40px;
  }
  .social-qr-code {
    width: 90px !important;
  }
  .social-qr-item.active .social-qr-code {
    max-height: 140px !important;
  }
}

/* ========== 美化中英文切换 ========== */
.lang-switcher {
  display: flex;
  align-items: center;
  background: rgba(15, 61, 46, 0.08);
  border: 1px solid rgba(15, 61, 46, 0.15);
  border-radius: 999px;
  padding: 4px;
  position: relative;
  overflow: hidden;
}

.lang-switcher button {
  position: relative;
  z-index: 1;
  padding: 6px 16px;
  border: none;
  background: transparent;
  font-size: 0.82rem;
  font-weight: 500;
  color: var(--color-text-light);
  cursor: pointer;
  border-radius: 999px;
  transition: color 0.3s;
  font-family: inherit;
}

.lang-switcher button.active {
  color: #fff;
  background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-dark) 100%);
  box-shadow: 0 2px 8px rgba(15, 61, 46, 0.3);
}

.lang-switcher button:hover:not(.active) {
  color: var(--color-primary);
}

.mobile-lang-switcher {
  margin-top: 16px;
  padding-top: 16px;
  border-top: 1px solid rgba(255,255,255,0.08);
}

.mobile-lang-switcher button {
  padding: 8px 20px;
  border: 1px solid rgba(255,255,255,0.15);
  background: rgba(255,255,255,0.04);
  color: rgba(255,255,255,0.7);
  border-radius: 8px;
  margin-right: 8px;
  cursor: pointer;
  font-size: 0.85rem;
}

.mobile-lang-switcher button.active {
  background: var(--color-accent);
  color: var(--color-secondary);
  border-color: var(--color-accent);
}

/* 首页案例折叠 */
.home-cases-collapsed .case-card:nth-child(n+4) {
  display: none;
}

.cases-toggle-wrapper {
  text-align: center;
  margin-top: 24px;
}

.cases-toggle-btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 12px 32px;
  background: transparent;
  border: 2px solid var(--color-primary);
  color: var(--color-primary);
  border-radius: 999px;
  font-size: 0.95rem;
  font-weight: 500;
  cursor: pointer;
  transition: all 0.3s;
}

.cases-toggle-btn:hover {
  background: var(--color-primary);
  color: #fff;
}

.cases-toggle-btn .toggle-icon {
  transition: transform 0.3s;
  display: inline-block;
}

.cases-toggle-btn.expanded .toggle-icon {
  transform: rotate(180deg);
}

/* ============================================================
   Solutions Section - 方案展示
   ============================================================ */

.solutions-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(340px, 1fr));
  gap: 28px;
}

.solution-card:hover {
  transform: translateY(-6px);
  box-shadow: 0 12px 40px rgba(0, 0, 0, 0.12) !important;
}

.solution-card-image svg {
  display: block;
  transition: transform 0.4s ease;
}

.solution-card:hover .solution-card-image svg {
  transform: scale(1.03);
}

/* ============================================================
   Solution Detail Page - 方案详情页
   ============================================================ */

.solution-detail .solution-overview {
  display: grid;
  grid-template-columns: 2fr 1fr;
  gap: 48px;
  margin-bottom: 72px;
  align-items: start;
}

.solution-detail .overview-content p {
  font-size: 1.05rem;
  line-height: 2;
  color: var(--color-text-light);
  margin-top: 20px;
}

.solution-detail .overview-stats {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.solution-detail .stat-card {
  background: linear-gradient(135deg, var(--color-primary), var(--color-primary-dark));
  color: #fff;
  padding: 28px;
  border-radius: 16px;
  text-align: center;
}

.solution-detail .stat-card .number {
  font-size: 2.8rem;
  font-weight: 800;
  color: var(--color-accent);
  line-height: 1;
  margin-bottom: 8px;
}

.solution-detail .stat-card .number span {
  font-size: 1.4rem;
  font-weight: 600;
}

.solution-detail .stat-card .label {
  font-size: 0.95rem;
  opacity: 0.9;
}

.solution-detail .solution-section {
  margin-bottom: 72px;
}

.solution-detail .structure-steps {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.solution-detail .step-item {
  display: flex;
  gap: 24px;
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: 16px;
  padding: 28px;
  transition: all 0.3s ease;
}

.solution-detail .step-item:hover {
  border-color: var(--color-primary);
  box-shadow: 0 6px 24px rgba(26, 92, 71, 0.1);
}

.solution-detail .step-num {
  flex-shrink: 0;
  width: 52px;
  height: 52px;
  background: var(--color-primary);
  color: #fff;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.4rem;
  font-weight: 700;
}

.solution-detail .step-content h3 {
  font-size: 1.15rem;
  margin-bottom: 10px;
  color: var(--color-secondary);
}

.solution-detail .step-content p {
  color: var(--color-text-light);
  line-height: 1.9;
  font-size: 0.95rem;
  margin: 0;
}

.solution-detail .table-wrapper {
  overflow-x: auto;
  border-radius: 12px;
  box-shadow: 0 2px 12px rgba(0, 0, 0, 0.06);
}

.solution-detail .spec-table {
  width: 100%;
  border-collapse: collapse;
  background: var(--color-bg-card);
  font-size: 0.92rem;
}

.solution-detail .spec-table thead tr {
  background: linear-gradient(135deg, var(--color-primary), var(--color-primary-dark));
  color: #fff;
}

.solution-detail .spec-table th {
  padding: 16px 20px;
  text-align: left;
  font-weight: 600;
  white-space: nowrap;
}

.solution-detail .spec-table td {
  padding: 14px 20px;
  border-bottom: 1px solid var(--color-border);
  color: var(--color-text-light);
  line-height: 1.7;
}

.solution-detail .spec-table tbody tr:last-child td {
  border-bottom: none;
}

.solution-detail .spec-table tbody tr:hover {
  background: rgba(26, 92, 71, 0.04);
}

.solution-detail .features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 24px;
}

.solution-detail .feature-card {
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: 16px;
  padding: 32px;
  transition: all 0.3s ease;
}

.solution-detail .feature-card:hover {
  transform: translateY(-4px);
  border-color: var(--color-primary);
  box-shadow: 0 8px 28px rgba(0, 0, 0, 0.1);
}

.solution-detail .feature-icon {
  font-size: 2.2rem;
  margin-bottom: 16px;
}

.solution-detail .feature-card h4 {
  font-size: 1.1rem;
  margin-bottom: 12px;
  color: var(--color-secondary);
}

.solution-detail .feature-card p {
  color: var(--color-text-light);
  line-height: 1.9;
  font-size: 0.93rem;
  margin: 0;
}

.solution-detail .application-cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 20px;
}

.solution-detail .app-card {
  background: linear-gradient(135deg, var(--color-bg-card), var(--color-bg-alt));
  border-radius: 16px;
  padding: 28px;
  text-align: center;
  transition: all 0.3s ease;
  border: 1px solid var(--color-border);
}

.solution-detail .app-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.1);
}

.solution-detail .app-icon {
  font-size: 2.5rem;
  margin-bottom: 16px;
}

.solution-detail .app-card h4 {
  font-size: 1.05rem;
  margin-bottom: 10px;
  color: var(--color-secondary);
}

.solution-detail .app-card p {
  color: var(--color-text-light);
  font-size: 0.9rem;
  line-height: 1.7;
  margin: 0;
}

.solution-detail .guarantee-box {
  background: linear-gradient(135deg, rgba(26, 92, 71, 0.08), rgba(201, 169, 97, 0.08));
  border: 1px solid rgba(26, 92, 71, 0.2);
  border-radius: 16px;
  padding: 36px 48px;
}

.solution-detail .guarantee-box p {
  color: var(--color-text-light);
  line-height: 2;
  font-size: 1rem;
  margin: 0;
}

.solution-detail .solution-cta {
  background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-dark) 100%);
  color: #fff;
  padding: 64px;
  border-radius: 20px;
  text-align: center;
  margin-top: 40px;
}

.solution-detail .solution-cta h2 {
  color: #fff;
  margin-bottom: 16px;
  font-size: 1.6rem;
}

.solution-detail .solution-cta p {
  opacity: 0.9;
  margin-bottom: 32px;
  font-size: 1.05rem;
}

.solution-detail .cta-buttons {
  display: flex;
  gap: 16px;
  justify-content: center;
  flex-wrap: wrap;
}

@media (max-width: 768px) {
  .solution-detail .solution-overview {
    grid-template-columns: 1fr;
    gap: 32px;
  }
  
  .solution-detail .step-item {
    flex-direction: column;
    gap: 16px;
    padding: 20px;
  }
  
  .solution-detail .solution-cta {
    padding: 40px 24px;
  }
  
  .solution-detail .guarantee-box {
    padding: 24px;
  }
  
  .solutions-grid {
    grid-template-columns: 1fr;
    gap: 20px;
  }
}

/* ========== Fixes ========== */
/* Section dark - 确保标题颜色正确 */
.section-dark .section-header h2 {
  color: #fff !important;
}

.section-dark .section-header h2 .accent {
  color: var(--color-accent) !important;
}

/* Feature icon - SVG图标颜色 */
.feature-icon svg {
  color: var(--color-accent);
}

.feature-item:hover .feature-icon svg {
  color: #fff;
}

/* 案例展开按钮修复 */
.cases-toggle-wrapper {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 12px;
  flex-wrap: wrap;
}

.cases-toggle-btn {
  display: inline-flex !important;
  align-items: center;
  gap: 8px;
  padding: 12px 28px;
  background: #fff;
  border: 2px solid var(--color-primary);
  color: var(--color-primary);
  border-radius: 999px;
  font-size: 0.95rem;
  font-weight: 500;
  cursor: pointer;
  transition: all 0.3s;
}

.cases-toggle-btn:hover {
  background: var(--color-primary);
  color: #fff;
}

.cases-toggle-wrapper .btn-outline-dark {
  margin-left: 0 !important;
}

/* 悬浮栏SVG图标修复 */
.widget-btn svg {
  width: 26px !important;
  height: 26px !important;
  color: #fff !important;
  fill: #fff !important;
}

.widget-btn svg path {
  fill: currentColor !important;
}

/* ============================================================
   强制修复 - 最高优先级覆盖样式
   ============================================================ */

/* 悬浮弹窗强制显示 */
.widget-popup.show {
  opacity: 1 !important;
  visibility: visible !important;
  transform: translateX(0) !important;
  z-index: 9999 !important;
  display: block !important;
}

.widget-popup {
  z-index: 9998 !important;
}

.floating-widget {
  z-index: 999 !important;
}

/* 案例展开按钮样式修复 */
.cases-toggle-btn {
  display: inline-flex !important;
  align-items: center !important;
  justify-content: center !important;
  gap: 8px !important;
  padding: 12px 28px !important;
  background: #fff !important;
  border: 2px solid var(--color-primary) !important;
  color: var(--color-primary) !important;
  border-radius: 999px !important;
  font-size: 0.95rem !important;
  font-weight: 500 !important;
  cursor: pointer !important;
  transition: all 0.3s !important;
  line-height: 1.5 !important;
  vertical-align: middle !important;
}

.cases-toggle-btn:hover {
  background: var(--color-primary) !important;
  color: #fff !important;
}

.cases-toggle-wrapper {
  display: flex !important;
  align-items: center !important;
  justify-content: center !important;
  gap: 12px !important;
  flex-wrap: wrap !important;
  margin-top: 24px !important;
}

.cases-toggle-wrapper .btn-outline-dark {
  margin-left: 0 !important;
}

/* Why Choose Us 区域修复 */
.features-grid {
  display: grid !important;
  grid-template-columns: repeat(4, 1fr) !important;
  gap: 32px !important;
}

@media (max-width: 1200px) {
  .features-grid {
    grid-template-columns: repeat(2, 1fr) !important;
  }
}

@media (max-width: 768px) {
  .features-grid {
    grid-template-columns: 1fr !important;
  }
}

.feature-item {
  text-align: center !important;
  padding: 32px 24px !important;
  border-radius: var(--radius-lg) !important;
  transition: var(--transition) !important;
}

.feature-icon {
  width: 64px !important;
  height: 64px !important;
  margin: 0 auto 20px !important;
  background: rgba(201, 169, 97, 0.12) !important;
  border-radius: var(--radius-full) !important;
  display: flex !important;
  align-items: center !important;
  justify-content: center !important;
  transition: var(--transition) !important;
}

.feature-item h4 {
  margin-bottom: 10px !important;
  color: var(--color-text-white) !important;
}

.feature-item p {
  color: rgba(255,255,255,0.6) !important;
  margin-bottom: 0 !important;
}


/* ========== 新底部栏样式 - 高端简洁商务风 ========== */
.footer-new-grid {
    display: grid;
    grid-template-columns: 1.4fr 1fr 1fr;
    gap: 60px;
    padding: 60px 0 40px;
}

/* 左列 - 品牌 */
.footer-brand-col {
    padding-right: 20px;
}

.footer-brand-name {
    font-family: var(--font-serif);
    font-size: 1.5rem;
    font-weight: 700;
    color: #fff;
    letter-spacing: 3px;
    margin-bottom: 16px;
}

.footer-brand-desc {
    color: rgba(255, 255, 255, 0.5);
    font-size: 0.9rem;
    line-height: 1.7;
    margin: 0 0 28px;
}

.footer-contact-info {
    display: flex;
    flex-direction: column;
    gap: 14px;
    margin-bottom: 28px;
}

.contact-item {
    display: flex;
    align-items: flex-start;
    gap: 12px;
    color: rgba(255, 255, 255, 0.65);
    font-size: 0.88rem;
    line-height: 1.5;
}

.contact-item span {
    flex: 1;
}

.contact-svg-icon {
    width: 18px;
    height: 18px;
    flex-shrink: 0;
    color: #c9a961;
    margin-top: 2px;
}

.footer-action-buttons {
    display: flex;
    gap: 12px;
}

.footer-btn-primary {
    display: inline-flex;
    align-items: center;
    padding: 10px 24px;
    background: linear-gradient(135deg, #c9a961 0%, #b8944f 100%);
    color: #0a1f18;
    border-radius: 4px;
    font-size: 0.88rem;
    font-weight: 600;
    text-decoration: none;
    transition: all 0.3s ease;
}

.footer-btn-primary:hover {
    transform: translateY(-1px);
    box-shadow: 0 4px 16px rgba(201, 169, 97, 0.3);
}

.footer-btn-secondary {
    display: inline-flex;
    align-items: center;
    padding: 10px 24px;
    background: transparent;
    color: rgba(255, 255, 255, 0.8);
    border: 1px solid rgba(255, 255, 255, 0.25);
    border-radius: 4px;
    font-size: 0.88rem;
    font-weight: 500;
    text-decoration: none;
    transition: all 0.3s ease;
}

.footer-btn-secondary:hover {
    border-color: #c9a961;
    color: #c9a961;
}

/* 中列 - 快速链接 */
.footer-links-col {
    padding-top: 8px;
}

.footer-col-title {
    color: #fff;
    font-size: 0.95rem;
    font-weight: 600;
    margin-bottom: 24px;
    position: relative;
    padding-bottom: 12px;
}

.footer-col-title::after {
    content: '';
    position: absolute;
    left: 0;
    bottom: 0;
    width: 30px;
    height: 2px;
    background: #c9a961;
}

.footer-links-list {
    list-style: none;
    padding: 0;
    margin: 0;
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.footer-links-list a {
    color: rgba(255, 255, 255, 0.55);
    font-size: 0.88rem;
    text-decoration: none;
    transition: all 0.3s ease;
    display: inline-block;
}

.footer-links-list a:hover {
    color: #c9a961;
    padding-left: 4px;
}

/* 右列 - 二维码 */
.footer-qr-col {
    padding-top: 8px;
}

/* footer底部 */
.footer-bottom {
    border-top: 1px solid rgba(255, 255, 255, 0.08);
    padding-top: 24px;
    margin-top: 40px;
}

.footer-bottom-inner {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 16px;
    color: rgba(255, 255, 255, 0.4);
    font-size: 0.82rem;
}

.footer-bottom-inner a {
    color: rgba(255, 255, 255, 0.4);
    text-decoration: none;
    transition: color 0.3s;
}

.footer-bottom-inner a:hover {
    color: #c9a961;
}

.footer-bottom-sep {
    opacity: 0.3;
}

/* 响应式 */
@media (max-width: 992px) {
    .footer-new-grid {
        grid-template-columns: 1fr 1fr;
        gap: 40px;
    }
    .footer-qr-col {
        grid-column: 1 / -1;
    }
}

@media (max-width: 768px) {
    .footer-new-grid {
        grid-template-columns: 1fr;
        gap: 40px;
        padding: 40px 0 24px;
    }
    .footer-action-buttons {
        flex-wrap: wrap;
    }
    .footer-bottom-inner {
        flex-direction: column;
        gap: 8px;
    }
    .footer-bottom-sep {
        display: none;
    }
}

/* ========== 语言切换优化 ========== */
.lang-switcher {
    display: inline-flex;
    align-items: center;
    background: #f5f5f5;
    border-radius: 999px;
    padding: 4px;
    border: 1px solid #e0e0e0;
    position: relative;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.08);
}

.lang-switcher button {
    background: #fff;
    border: 1px solid #ddd;
    color: #666;
    padding: 7px 18px;
    font-size: 0.85rem;
    font-weight: 500;
    cursor: pointer;
    border-radius: 999px;
    transition: all 0.25s ease;
    display: inline-flex;
    align-items: center;
    gap: 5px;
    min-width: 80px;
    justify-content: center;
}

.lang-switcher button .lang-icon {
    width: 14px;
    height: 14px;
    stroke: currentColor;
}

.lang-switcher button:hover:not(.active) {
    color: #0f3d2e;
    border-color: #c9a961;
    background: #fafaf5;
}

.lang-switcher button.active {
    background: linear-gradient(135deg, #c9a961 0%, #b8944f 100%);
    color: #fff;
    border-color: #c9a961;
    font-weight: 600;
    box-shadow: 0 2px 8px rgba(201, 169, 97, 0.35);
}

/* 移动版语言切换 */
.mobile-lang-switcher {
    display: inline-flex;
    align-items: center;
    background: #f5f5f5;
    border-radius: 999px;
    padding: 4px;
    border: 1px solid #e0e0e0;
}

.mobile-lang-switcher button {
    background: #fff;
    border: 1px solid #ddd;
    color: #666;
    padding: 6px 14px;
    font-size: 0.82rem;
    cursor: pointer;
    border-radius: 999px;
    transition: all 0.25s ease;
    min-width: 70px;
}

.mobile-lang-switcher button:hover:not(.active) {
    color: #0f3d2e;
    border-color: #c9a961;
}

.mobile-lang-switcher button.active {
    background: linear-gradient(135deg, #c9a961 0%, #b8944f 100%);
    color: #fff;
    border-color: #c9a961;
}