/* ========================================
   木兰茶故事 mulanteastory.cn 
   高品质视觉设计系统 v5.0 - 奢华质感版
   设计理念：科技动态感 × 东方茶文化唯美 × 大气简约 × 奢华质感
   ======================================== */

/* ========================================
   1. CSS Variables - 品牌色系 & 设计令牌
   ======================================== */
:root {
  /* === 主色调 - 东方茶色系 === */
  --color-primary: #8B6914;         /* 茶金棕 */
  --color-primary-dark: #5C3D0E;    /* 深茶褐 */
  --color-primary-light: #B8941F;   /* 浅茶金 */
  
  /* === 金色系 - 奢华点缀 === */
  --color-gold: #D4A84B;            /* 主金色 */
  --color-gold-light: #F5E6C8;      /* 浅金/米色背景 */
  --color-gold-dark: #A67C00;       /* 深金 */
  --color-gold-bright: #F5D799;     /* 亮金 */
  
  /* === 强调色 === */
  --color-accent: #C41E3A;          /* 中国红 */
  --color-accent-light: #E85058;
  
  /* === 中性色 === */
  --color-dark: #1A1612;            /* 深炭黑 - 近似墨色 */
  --color-dark-soft: #2D2520;       /* 柔和深色 */
  --color-gray: #6B635B;            /* 茶灰色 */
  --color-gray-light: #F7F3EE;      /* 宣纸白/暖灰 */
  --color-white: #FFFFFF;
  --color-border: rgba(139,105,20,0.15);
  
  /* === 渐变系统 v5.0 增强 === */
  --gradient-hero: linear-gradient(135deg, #0A0705 0%, #14100C 15%, #1F1510 30%, #2D1A10 50%, #382218 70%, #1F1510 85%, #0D0906 100%);
  --gradient-gold: linear-gradient(135deg, #B8860B 0%, #F5DEB3 25%, #FFD700 50%, #F5DEB3 75%, #B8860B 100%);
  --gradient-gold-subtle: linear-gradient(135deg, #D4A84B 0%, #F5DEB3 50%, #D4A84B 100%);
  --gradient-card: linear-gradient(165deg, rgba(255,255,255,0.98) 0%, rgba(250,245,235,0.95) 40%, rgba(247,243,238,0.92) 100%);
  --gradient-dark-section: linear-gradient(180deg, #161310 0%, #0E0B09 50%, #0A0806 100%);
  --gradient-accent: linear-gradient(135deg, #C41E3A 0%, #E85058 50%, #FF6B6B 100%);
  --gradient-tea: linear-gradient(135deg, #4A3008 0%, #8B6914 40%, #B8941F 70%, #D4A84B 100%);
  --gradient-glass: linear-gradient(135deg, rgba(255,255,255,0.08) 0%, rgba(255,255,255,0.02) 100%);
  
  /* === 光效 v5.0 增强 === */
  --glow-gold: 0 0 20px rgba(212,168,75,0.35), 0 0 60px rgba(212,168,75,0.12), 0 0 100px rgba(212,168,75,0.05);
  --glow-gold-intense: 0 0 30px rgba(212,168,75,0.5), 0 0 80px rgba(212,168,75,0.2), 0 0 120px rgba(212,168,75,0.08);
  --glow-soft: 0 8px 32px rgba(0,0,0,0.08), 0 2px 8px rgba(0,0,0,0.04);
  --glow-hover: 0 16px 48px rgba(139,105,20,0.18), 0 4px 16px rgba(212,168,75,0.1);
  --shadow-elevated: 0 24px 72px rgba(0,0,0,0.15), 0 8px 24px rgba(0,0,0,0.1);
  --shadow-card: 0 4px 24px rgba(0,0,0,0.06), 0 1px 4px rgba(0,0,0,0.03);
  --shadow-card-hover: 0 20px 56px rgba(0,0,0,0.12), 0 0 0 1px rgba(212,168,75,0.2), 0 4px 16px rgba(212,168,75,0.08);
  --shadow-inner-glow: inset 0 1px 0 rgba(255,255,255,0.9), inset 0 0 20px rgba(212,168,75,0.04);
  
  /* === 字体系统 === */
  --font-display: "Noto Serif SC", "Source Han Serif CN", "STSong", "SimSun", serif;
  --font-body: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  --font-mono: "SF Mono", "Fira Code", "Consolas", monospace;
  
  /* === 尺寸令牌 === */
  --max-width: 1200px;
  --radius-sm: 6px;
  --radius-md: 12px;
  --radius-lg: 20px;
  --radius-xl: 28px;
  --radius-full: 9999px;
  
  /* === 过渡 === */
  --transition-fast: 0.2s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-base: 0.35s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-slow: 0.6s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-spring: 0.5s cubic-bezier(0.34, 1.56, 0.64, 1);
}

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

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

body {
  font-family: var(--font-body);
  color: var(--color-dark);
  line-height: 1.8;
  background: var(--color-white);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
}

/* 全局背景 v5.0 - 奢华纹理 + 动态光晕 */
body::before {
  content: '';
  position: fixed;
  top: 0; left: 0; right: 0; bottom: 0;
  background: 
    radial-gradient(ellipse at 20% 50%, rgba(212,168,75,0.05) 0%, transparent 55%),
    radial-gradient(ellipse at 80% 20%, rgba(139,105,20,0.04) 0%, transparent 50%),
    radial-gradient(ellipse at 50% 80%, rgba(196,30,58,0.03) 0%, transparent 50%);
  pointer-events: none;
  z-index: -1;
}

/* 全局动态背景光效 */
body::after {
  content: '';
  position: fixed;
  top: -30%; left: -30%;
  width: 160%; height: 160%;
  background: 
    radial-gradient(circle at 30% 40%, rgba(212,168,75,0.03) 0%, transparent 40%),
    radial-gradient(circle at 70% 60%, rgba(139,105,20,0.02) 0%, transparent 35%);
  animation: bgGlowShift 15s ease-in-out infinite alternate;
  pointer-events: none;
  z-index: -1;
}

@keyframes bgGlowShift {
  0% { transform: translate(0, 0) rotate(0deg); }
  100% { transform: translate(3%, 2%) rotate(3deg); }
}

img { max-width: 100%; height: auto; display: block; }
a { color: var(--color-primary); text-decoration: none; transition: var(--transition-fast); }
a:hover { color: var(--color-gold); }

h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-display);
  line-height: 1.4;
  font-weight: 700;
  color: var(--color-dark);
  letter-spacing: 0.02em;
}
h1 { font-size: clamp(2rem, 5vw, 3rem); margin-bottom: 1.2rem; }
h2 { font-size: clamp(1.5rem, 3.5vw, 2rem); margin-bottom: 1rem; }
h3 { font-size: clamp(1.15rem, 2vw, 1.4rem); margin-bottom: 0.7rem; }
h4 { font-size: 1.15rem; margin-bottom: 0.5rem; }
p { margin-bottom: 1rem; color: var(--color-gray); line-height: 1.85; }
ul, ol { padding-left: 1.6rem; margin-bottom: 1rem; }
li { margin-bottom: 0.4rem; }

::selection {
  background: rgba(212,168,75,0.25);
  color: var(--color-dark);
}

/* ========================================
   3. Layout System
   ======================================== */
.container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 24px;
}

.section {
  padding: 100px 0;
  position: relative;
}

.section-gray {
  background: var(--color-gray-light);
  position: relative;
  /* 微妙的纹理叠加 */
  background-image: 
    radial-gradient(circle at 1px 1px, rgba(139,105,20,0.04) 1px, transparent 0);
  background-size: 32px 32px;
}

.section-dark {
  background: var(--gradient-dark-section);
  color: var(--color-white);
  position: relative;
  overflow: hidden;
}

.section-dark p { color: rgba(255,255,255,0.7); }
.section-dark h2, .section-dark h3 { color: var(--color-white); }

/* Section Title v5.0 - 更精致排版 */
.section-title {
  text-align: center;
  margin-bottom: 64px;
  position: relative;
}

.section-title .section-label {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-size: 0.82rem;
  font-weight: 600;
  letter-spacing: 3px;
  text-transform: uppercase;
  color: var(--color-gold-bright);
  margin-bottom: 16px;
  font-family: var(--font-body);
  text-shadow: 0 0 20px rgba(212,168,75,0.2);
}

.section-title .section-label::before,
.section-title .section-label::after {
  content: '';
  width: 32px;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--color-gold), transparent);
  opacity: 0.7;
}

.section-title h2 {
  border: none;
  display: inline-block;
  position: relative;
  letter-spacing: 0.04em;
}

/* 标题下方的金色渐变下划线 - 增强版 */
.section-title h2::after {
  content: '';
  position: absolute;
  bottom: -14px;
  left: 50%;
  transform: translateX(-50%);
  width: 56px;
  height: 3px;
  background: var(--gradient-gold);
  border-radius: 2px;
  box-shadow: 0 0 12px rgba(212,168,75,0.4), 0 0 24px rgba(212,168,75,0.15);
}

.section-title p {
  margin-top: 22px;
  font-size: 1.05rem;
  max-width: 580px;
  margin-left: auto;
  margin-right: auto;
  color: var(--color-gray);
  line-height: 1.8;
}

/* ========================================
   4. Header & Navigation - 精致导航
   ======================================== */
/* Header - 深色奢华导航栏 v4.0 */
.header {
  background: linear-gradient(180deg, rgba(26,22,18,0.96) 0%, rgba(22,18,14,0.98) 100%);
  backdrop-filter: blur(24px) saturate(180%);
  -webkit-backdrop-filter: blur(24px) saturate(180%);
  border-bottom: 1px solid rgba(212,168,75,0.12);
  position: sticky;
  top: 0;
  z-index: 1000;
  transition: var(--transition-base);
}

.header.scrolled {
  box-shadow: 0 4px 40px rgba(0,0,0,0.4), 0 0 20px rgba(212,168,75,0.06);
  background: linear-gradient(180deg, rgba(16,13,10,0.99) 0%, rgba(22,18,14,0.99) 100%);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 24px;
  height: 72px;
  max-width: var(--max-width);
  margin: 0 auto;
}

.logo {
  display: flex;
  align-items: center;
  text-decoration: none;
  gap: 12px;
}

/* Logo 马标图标 */
.logo-icon-wrap {
  position: relative;
  display: inline-block;
}

.logo-icon {
  height: 40px;
  width: auto;
  transition: var(--transition-base);
  filter: brightness(0) invert(1) drop-shadow(0 0 8px rgba(212,168,75,0.4)) drop-shadow(0 2px 6px rgba(0,0,0,0.3));
}

/* LOGO图片右上角 ® 标识 */
.logo-icon-r {
  position: absolute;
  top: -8px; right: -10px;
  font-size: 8px;
  font-weight: 700;
  line-height: 1;
  color: rgba(212,168,75,0.85);
  background: rgba(22,18,14,0.75);
  border-radius: 50%;
  width: 13px; height: 13px;
  display: flex; align-items: center; justify-content: center;
  font-family: 'Arial', sans-serif;
  text-shadow: none;
  backdrop-filter: blur(4px);
  border: 1px solid rgba(212,168,75,0.3);
  box-shadow: 0 2px 5px rgba(0,0,0,0.35);
}

.logo:hover .logo-icon {
  transform: scale(1.05);
  filter: brightness(0) invert(1) drop-shadow(0 0 16px rgba(212,168,75,0.55)) drop-shadow(0 2px 8px rgba(0,0,0,0.4));
}

.logo:hover .logo-icon-r {
  color: #F5D799;
  border-color: rgba(245,215,153,0.5);
}

/* Logo 文字区域 */
.logo-text {
  display: flex;
  flex-direction: column;
  gap: 1px;
  line-height: 1.25;
}

/* Logo 主标题：木兰茶故事 */
.logo-title {
  font-size: 18px;
  font-weight: 700;
  color: rgba(230,215,190,0.95);
  letter-spacing: 3px;
  white-space: nowrap;
  transition: color 0.3s ease;
}

/* Logo 副标题：MuLanTeaStory */
.logo-subtitle {
  font-size: 10px;
  font-weight: 400;
  color: rgba(212,168,75,0.7);
  letter-spacing: 2.5px;
  font-family: 'Segoe UI', 'PingFang SC', sans-serif;
  text-transform: uppercase;
  white-space: nowrap;
  transition: color 0.3s ease;
}

/* Logo hover 时文字高亮 */
.logo:hover .logo-title { color: #F5D799; }
.logo:hover .logo-subtitle { color: #D4A84B; }

/* 商标 R 标识 - 右上角上标显示，金色圆圈风格 */
.logo-r {
  font-size: 0.5em;
  font-weight: 700;
  vertical-align: super;
  line-height: 0;
  margin-left: 1px;
  color: rgba(212,168,75,0.8);
  letter-spacing: 0;
}

.logo:hover .logo-r { color: #F5D799; }

/* 移动端 logo 缩小 */
@media (max-width: 768px) {
  .logo-icon { height: 32px; }
  .logo-icon-r { width: 11px; height: 11px; font-size: 6.5px; top: -5px; right: -7px; }
  .logo-title { font-size: 15px; letter-spacing: 2px; }
  .logo-subtitle { font-size: 8px; letter-spacing: 1.5px; }
  .logo-text { gap: 0; }
}

/* Main Navigation - 金色文字系 */
.nav {
  display: flex;
  align-items: center;
  gap: 4px;
}

.nav > .nav-item {
  position: relative;
}

.nav > .nav-item > a {
  display: flex;
  align-items: center;
  gap: 4px;
  padding: 10px 18px;
  font-size: 0.93rem;
  font-weight: 500;
  color: rgba(230,215,190,0.85);
  border-radius: var(--radius-full);
  transition: var(--transition-base);
  letter-spacing: 0.02em;
  position: relative;
}

.nav > .nav-item > a::before {
  content: '';
  position: absolute;
  bottom: 6px;
  left: 50%;
  transform: translateX(-50%) scaleX(0);
  width: 20px;
  height: 2px;
  background: linear-gradient(90deg, #D4A84B, #F5D799);
  border-radius: 2px;
  transition: var(--transition-base);
}

.nav > .nav-item > a:hover,
.nav > .nav-item.active > a {
  color: #F5D799;
  text-shadow: 0 0 20px rgba(212,168,75,0.3);
}

.nav > .nav-item > a:hover::before,
.nav > .nav-item.active > a::before {
  transform: translateX(-50%) scaleX(1);
}

.nav-arrow {
  font-size: 0.65rem;
  transition: transform 0.25s ease;
  opacity: 0.5;
  color: #D4A84B;
}

.nav-item:hover .nav-arrow {
  transform: rotate(180deg);
  opacity: 1;
  color: #F5D799;
}

/* Dropdown Menu - 深色奢华下拉 */
.dropdown-menu {
  position: absolute;
  top: calc(100% + 8px);
  left: 50%;
  transform: translateX(-50%) translateY(10px);
  min-width: 200px;
  background: linear-gradient(180deg, rgba(32,26,22,0.98) 0%, rgba(26,22,18,0.99) 100%);
  backdrop-filter: blur(24px);
  border-radius: var(--radius-md);
  box-shadow: 0 12px 48px rgba(0,0,0,0.5), 0 0 1px rgba(212,168,75,0.2), inset 0 1px 0 rgba(212,168,75,0.08);
  border: 1px solid rgba(212,168,75,0.15);
  opacity: 0;
  visibility: hidden;
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  padding: 10px;
  z-index: 100;
}

.dropdown-menu::before {
  content: '';
  position: absolute;
  top: -6px;
  left: 50%;
  transform: translateX(-50%) rotate(45deg);
  width: 12px;
  height: 12px;
  background: linear-gradient(135deg, rgba(32,26,22,0.98) 0%, rgba(26,22,18,0.99) 100%);
  border-top: 1px solid rgba(212,168,75,0.15);
  border-left: 1px solid rgba(212,168,75,0.15);
}

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

.dropdown-menu a {
  display: block;
  padding: 11px 20px;
  font-size: 0.9rem;
  color: rgba(230,215,190,0.75);
  border-radius: var(--radius-sm);
  transition: var(--transition-fast);
  font-weight: 450;
}

.dropdown-menu a:hover {
  background: rgba(212,168,75,0.12);
  color: #F5D799;
  padding-left: 24px;
}

/* Mobile Nav Toggle - 深色适配 */
.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 6px;
  cursor: pointer;
  padding: 10px;
  background: none;
  border: none;
  border-radius: var(--radius-sm);
  transition: var(--transition-fast);
}

.nav-toggle:hover {
  background: rgba(212,168,75,0.1);
}

.nav-toggle span {
  display: block;
  width: 22px;
  height: 2px;
  background: #D4A84B;
  transition: var(--transition-base);
  border-radius: 2px;
}

.nav-toggle.active span:nth-child(1) {
  transform: rotate(45deg) translate(6px, 6px);
}
.nav-toggle.active span:nth-child(2) {
  opacity: 0;
  transform: scaleX(0);
}
.nav-toggle.active span:nth-child(3) {
  transform: rotate(-45deg) translate(6px, -6px);
}

/* ========================================
   5. Hero Section - 科技感大屏 v5.0 奢华版
   ======================================== */
.hero {
  background: var(--gradient-hero);
  color: var(--color-white);
  padding: 140px 0 100px;
  position: relative;
  overflow: hidden;
  min-height: 85vh;
  display: flex;
  align-items: center;
}

/* Hero 多层动态粒子背景 */
.hero-particles {
  position: absolute;
  top: 0; left: 0; right: 0; bottom: 0;
  overflow: hidden;
  pointer-events: none;
}

.hero-particle {
  position: absolute;
  background: rgba(212,168,75,0.6);
  border-radius: 50%;
  animation: particleFloat linear infinite;
  box-shadow: 
    0 0 6px rgba(212,168,75,0.4), 
    0 0 12px rgba(212,168,75,0.2),
    0 0 20px rgba(255,215,0,0.1);
}

/* 粒子分层：小/中/大三种尺寸 */
.hero-particle.size-s { width: 2px; height: 2px; }
.hero-particle.size-m { width: 3px; height: 3px; }
.hero-particle.size-l { width: 4px; height: 4px; box-shadow: 0 0 8px rgba(212,168,75,0.5), 0 0 16px rgba(212,168,75,0.25); }

@keyframes particleFloat {
  0% {
    transform: translateY(100vh) scale(0);
    opacity: 0;
  }
  10% {
    opacity: 1;
    transform: translateY(90vh) scale(1);
  }
  90% {
    opacity: 1;
  }
  100% {
    transform: translateY(-10vh) scale(0.5);
    opacity: 0;
  }
}

/* 主流动光效 - 更大范围更柔和 */
.hero::after {
  content: '';
  position: absolute;
  top: -50%; left: -50%;
  width: 200%; height: 200%;
  background: conic-gradient(
    from 0deg at 50% 50%, 
    transparent 0deg, 
    rgba(212,168,75,0.06) 60deg, 
    transparent 120deg, 
    rgba(196,30,58,0.04) 180deg, 
    transparent 240deg, 
    rgba(212,168,75,0.05) 300deg, 
    transparent 360deg
  );
  animation: heroRotate 25s linear infinite;
  pointer-events: none;
}

@keyframes heroRotate {
  from { transform: rotate(0deg); }
  to { transform: rotate(360deg); }
}

/* 第二层光效 - 反向旋转的径向渐变 */
.hero-bg-glow {
  position: absolute;
  top: 0; left: 0; right: 0; bottom: 0;
  overflow: hidden;
  pointer-events: none;
}

.hero-bg-glow::before {
  content: '';
  position: absolute;
  top: -20%; left: 20%;
  width: 500px; height: 500px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(212,168,75,0.08) 0%, transparent 70%);
  animation: glowPulse 6s ease-in-out infinite alternate;
  filter: blur(40px);
}

.hero-bg-glow::after {
  content: '';
  position: absolute;
  bottom: -15%; right: 10%;
  width: 400px; height: 400px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(196,30,58,0.05) 0%, transparent 70%);
  animation: glowPulse 8s ease-in-out infinite alternate reverse;
  filter: blur(35px);
}

@keyframes glowPulse {
  0% { opacity: 0.5; transform: scale(0.9); }
  100% { opacity: 1; transform: scale(1.2); }
}

/* 网格纹理叠加 */
.hero::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0; bottom: 0;
  background-image: 
    linear-gradient(rgba(212,168,75,0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(212,168,75,0.03) 1px, transparent 1px);
  background-size: 60px 60px;
  mask-image: radial-gradient(ellipse at center, black 30%, transparent 70%);
  -webkit-mask-image: radial-gradient(ellipse at center, black 30%, transparent 70%);
  pointer-events: none;
}

.hero-content {
  position: relative;
  z-index: 2;
  text-align: center;
  max-width: 860px;
  margin: 0 auto;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 10px 24px;
  background: rgba(212,168,75,0.1);
  border: 1px solid rgba(212,168,75,0.3);
  border-radius: var(--radius-full);
  font-size: 0.82rem;
  color: var(--color-gold-bright);
  letter-spacing: 2px;
  margin-bottom: 28px;
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  animation: fadeInDown 0.8s ease-out, badgeShimmer 4s ease-in-out infinite 0.8s;
  box-shadow: 
    0 0 20px rgba(212,168,75,0.15),
    inset 0 0 20px rgba(212,168,75,0.05),
    0 2px 16px rgba(0,0,0,0.2);
}
  border-radius: var(--radius-full);
  font-size: 0.82rem;
  color: var(--color-gold);
  letter-spacing: 2px;
  margin-bottom: 28px;
  backdrop-filter: blur(10px);
  animation: fadeInDown 0.8s ease-out;
}

.hero h1 {
  font-size: clamp(2.2rem, 5.5vw, 3.4rem);
  color: var(--color-white);
  margin-bottom: 24px;
  border: none;
  letter-spacing: 0.05em;
  animation: fadeInUp 0.8s ease-out 0.15s both;
  line-height: 1.25;
  text-shadow: 0 2px 20px rgba(0,0,0,0.3);
}

.hero h1 .text-gold-highlight {
  background: var(--gradient-gold);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  position: relative;
}

/* 金色文字光晕动画 */
.hero h1 .text-gold-highlight::after {
  content: attr(data-text);
  position: absolute;
  left: 0; top: 0;
  z-index: -1;
  background: var(--gradient-gold);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  filter: blur(12px);
  opacity: 0.5;
}

.hero-subtitle {
  font-size: clamp(1rem, 2vw, 1.2rem);
  opacity: 0.88;
  margin-bottom: 44px;
  line-height: 1.8;
  animation: fadeInUp 0.8s ease-out 0.3s both;
  color: rgba(255,255,255,0.82);
}

.hero-subtitle strong {
  color: var(--color-gold);
  font-weight: 600;
}

/* Buttons Row */
.hero-buttons {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 16px;
  margin-bottom: 56px;
  animation: fadeInUp 0.8s ease-out 0.45s both;
}

/* Button System v5.0 - 奢华质感按钮 */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 15px 38px;
  border-radius: var(--radius-full);
  font-size: 0.95rem;
  font-weight: 600;
  cursor: pointer;
  border: none;
  transition: all 0.4s cubic-bezier(0.25, 0.46, 0.45, 0.94);
  text-decoration: none;
  position: relative;
  overflow: hidden;
  letter-spacing: 0.02em;
}

.btn::before {
  content: '';
  position: absolute;
  top: 0; left: -100%;
  width: 100%; height: 100%;
  background: linear-gradient(90deg, transparent, rgba(255,255,255,0.2), transparent);
  transition: left 0.6s ease;
}

.btn:hover::before {
  left: 100%;
}

/* 按钮内发光边框效果 */
.btn::after {
  content: '';
  position: absolute;
  inset: 0;
  border-radius: inherit;
  opacity: 0;
  transition: opacity 0.3s ease;
  pointer-events: none;
}

.btn-primary {
  background: var(--gradient-accent);
  color: white;
  box-shadow: 
    0 4px 20px rgba(196,30,58,0.35),
    0 1px 8px rgba(196,30,58,0.2),
    inset 0 1px 0 rgba(255,255,255,0.15);
}

.btn-primary::after {
  box-shadow: inset 0 0 0 1px rgba(255,255,255,0.2);
}

.btn-primary:hover {
  transform: translateY(-4px) scale(1.02);
  box-shadow: 
    0 12px 36px rgba(196,30,58,0.45),
    0 4px 16px rgba(196,30,58,0.3),
    inset 0 1px 0 rgba(255,255,255,0.2);
  color: white;
}

.btn-outline {
  background: rgba(255,255,255,0.06);
  color: white;
  border: 1.5px solid rgba(255,255,255,0.3);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
}

.btn-outline:hover {
  background: rgba(255,255,255,0.14);
  border-color: rgba(255,255,255,0.6);
  color: white;
  transform: translateY(-4px) scale(1.02);
  box-shadow: 
    0 12px 36px rgba(255,255,255,0.1),
    inset 0 0 20px rgba(255,255,255,0.05);
}

.btn-gold {
  background: var(--gradient-gold);
  color: var(--color-primary-dark);
  box-shadow: 
    0 4px 20px rgba(212,168,75,0.35),
    0 1px 8px rgba(212,168,75,0.2),
    inset 0 1px 0 rgba(255,255,255,0.3);
  font-weight: 700;
}

.btn-gold:hover {
  transform: translateY(-4px) scale(1.02);
  box-shadow: 
    var(--glow-gold-intense),
    inset 0 1px 0 rgba(255,255,255,0.4);
  color: var(--color-primary-dark);
}

/* Data Bar - 核心数据条 v5.1 高对比度版 */
.data-bar {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 24px 40px;
  background:
    /* 深色渐变底色，确保金色文字清晰可读 */
    linear-gradient(135deg, #1A1612 0%, #2A201A 50%, #1F1814 100%);
  border: 1px solid rgba(212,168,75,0.25);
  border-radius: var(--radius-lg);
  padding: 28px 44px;
  animation: fadeInUp 0.8s ease-out 0.6s both;
  box-shadow:
    0 12px 40px rgba(0,0,0,0.3),
    inset 0 1px 0 rgba(212,168,75,0.08),
    0 0 60px rgba(212,168,75,0.06);
  position: relative;
  overflow: hidden;
}

/* 数据条顶部微光扫过效果 */
.data-bar::before {
  content: '';
  position: absolute;
  top: 0; left: -100%;
  width: 50%; height: 100%;
  background: linear-gradient(
    105deg,
    transparent 0%,
    rgba(245,215,153,0.04) 45%,
    rgba(212,168,75,0.02) 52%,
    transparent 55%
  );
  animation: dataBarShimmer 5s ease-in-out infinite;
  pointer-events: none;
}

/* 底部金色细线装饰 */
.data-bar::after {
  content: '';
  position: absolute;
  bottom: 0; left: 15%; right: 15%;
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(212,168,75,0.35), transparent);
}

@keyframes dataBarShimmer {
  0% { left: -50%; }
  100% { left: 150%; }
}

.data-item {
  text-align: center;
  position: relative;
}

.data-item:not(:last-child)::after {
  content: '';
  position: absolute;
  right: -20px;
  top: 50%;
  transform: translateY(-50%);
  width: 1px;
  height: 36px;
  background: rgba(212,168,75,0.25);
}

.data-num {
  font-family: var(--font-display);
  font-size: 2rem;
  font-weight: 700;
  /* 金色渐变文字 - 深色背景上高对比度 */
  background: linear-gradient(135deg, #F5D799 0%, #FFD966 40%, #D4A84B 70%, #F5E6C8 100%);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  display: block;
  letter-spacing: 0.02em;
  filter: drop-shadow(0 0 12px rgba(212,168,75,0.35));
  transition: all 0.3s ease;
}

.data-item:hover .data-num {
  filter: drop-shadow(0 0 18px rgba(212,168,75,0.55)) drop-shadow(0 2px 4px rgba(0,0,0,0.4));
  transform: scale(1.05);
}

.data-label {
  font-size: 0.82rem;
  color: rgba(230,215,190,0.75);
  letter-spacing: 1px;
  margin-top: 4px;
}

/* ========================================
   6. Card Components - 精美卡片 v5.0 奢华版
   ======================================== */
/* 业务板块网格 - 智能适配列数 */
.cards-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 24px;
}

/* cards-grid 内的 business-card 稍微紧凑以适应4列布局 */
.cards-grid .business-card {
  padding: 32px 20px;
}

.card {
  background: var(--gradient-card);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-card), inset 0 0 0 1px rgba(255,255,255,0.8);
  border: 1px solid rgba(139,105,20,0.06);
  transition: all 0.5s cubic-bezier(0.25, 0.46, 0.45, 0.94);
  position: relative;
}

.card::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 3px;
  background: var(--gradient-gold);
  opacity: 0;
  transition: opacity 0.4s ease, height 0.35s ease;
}

.card:hover {
  transform: translateY(-10px) scale(1.02);
  box-shadow: 
    var(--shadow-card-hover),
    0 24px 64px rgba(139,105,20,0.08),
    inset 0 0 40px rgba(212,168,75,0.03),
    inset 0 0 0 1px rgba(212,168,75,0.12);
}

.card:hover::before {
  opacity: 1;
  height: 4px;
}

.card-icon {
  font-size: 2.5rem;
  margin-bottom: 18px;
  display: block;
}

.card-body {
  padding: 32px 28px;
}

.card-body h3 {
  font-size: 1.3rem;
  margin-bottom: 12px;
  color: var(--color-dark);
}

.card-body p {
  font-size: 0.93rem;
  color: var(--color-gray);
  line-height: 1.75;
}

.card-meta {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-top: 20px;
  padding-top: 18px;
  border-top: 1px solid var(--color-border);
}

.card-price {
  font-size: 1.2rem;
  font-weight: 700;
  color: var(--color-accent);
  font-family: var(--font-display);
}

.card-link {
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--color-primary);
  transition: var(--transition-fast);
}

.card-link:hover {
  color: var(--color-gold);
  gap: 4px;
}

.card-link::after { content: ' →'; }

/* Business Cards (首页四大业务 / 品牌生态核心品牌) - v5.0奢华版 */
.brand-core-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
  margin: 36px 0;
}

.business-card {
  background: var(--gradient-card);
  border-radius: var(--radius-lg);
  padding: 40px 28px;
  text-align: center;
  box-shadow: var(--shadow-card), inset 0 0 0 1px rgba(255,255,255,0.8);
  border: 1px solid rgba(139,105,20,0.06);
  transition: 
    transform 0.5s cubic-bezier(0.25, 0.46, 0.45, 0.94),
    box-shadow 0.6s ease,
    border-color 0.4s ease,
    background 0.4s ease;
  position: relative;
  overflow: hidden;
}

/* 顶部金色细线动画 - 更宽更亮 */
.business-card::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 4px;
  background: var(--gradient-gold);
  transform: scaleX(0);
  transform-origin: left center;
  transition: transform 0.55s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

/* 悬浮径向光效 - 更强更亮 */
.business-card::after {
  content: '';
  position: absolute;
  top: 50%; left: 50%;
  width: 200%; height: 200%;
  transform: translate(-50%, -50%) scale(0) rotate(var(--rotate-deg, 0deg));
  background: radial-gradient(
    circle at 30% 30%,
    rgba(212,168,75,0.15) 0%,
    transparent 55%
  );
  transition: transform 0.6s cubic-bezier(0.34, 1.56, 0.64, 1), opacity 0.4s ease;
  opacity: 0;
  pointer-events: none;
}

/* 卡片内部微弱纹理 */
.business-card .card-inner-glow {
  position: absolute;
  top: 0; left: 0; right: 0; bottom: 0;
  pointer-events: none;
  overflow: hidden;
}

.business-card:hover {
  transform: translateY(-10px) scale(1.03);
  box-shadow: 
    var(--shadow-card-hover),
    0 24px 64px rgba(139,105,20,0.12),
    inset 0 1px 0 rgba(255,255,255,0.95),
    inset 0 0 40px rgba(212,168,75,0.04);
  border-color: rgba(212,168,75,0.22);
}

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

.business-card:hover::after {
  transform: translate(-50%, -50%) scale(1) rotate(0deg);
  opacity: 1;
}

.business-card .card-icon {
  font-size: 3.2rem;
  margin-bottom: 24px;
  display: block;
  filter: drop-shadow(0 4px 8px rgba(0,0,0,0.1));
  transition: var(--transition-base);
}

.business-card:hover .card-icon {
  transform: scale(1.1);
}

.business-card h3 {
  font-size: 1.35rem;
  margin-bottom: 14px;
  color: var(--color-dark);
  letter-spacing: 0.02em;
}

.business-card .card-desc {
  font-size: 0.91rem;
  color: var(--color-gray);
  margin-bottom: 20px;
  line-height: 1.75;
}

.business-card .card-tags {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 8px;
  margin-bottom: 24px;
}

.tag {
  background: var(--color-gold-light);
  color: var(--color-primary-dark);
  padding: 5px 14px;
  border-radius: var(--radius-full);
  font-size: 0.78rem;
  font-weight: 500;
  letter-spacing: 0.3px;
  transition: var(--transition-fast);
  border: 1px solid rgba(212,168,75,0.15);
}

.tag:hover {
  background: var(--color-gold);
  color: white;
}

.business-card .card-price {
  font-size: 1.35rem;
  color: var(--color-primary);
  margin-bottom: 20px;
  display: block;
  font-family: var(--font-display);
  font-weight: 700;
}

.business-card .btn {
  padding: 12px 28px;
  font-size: 0.9rem;
}

/* ========================================
   7. Quote / Testimonial Block v5.0
   ======================================== */
.quotes-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(340px, 1fr));
  gap: 28px;
}

.quote-card {
  background: var(--gradient-card);
  border-radius: var(--radius-lg);
  padding: 36px 32px;
  box-shadow: var(--shadow-card), inset 0 0 0 1px rgba(255,255,255,0.8);
  border: 1px solid rgba(139,105,20,0.06);
  position: relative;
  transition: all 0.45s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

.quote-card:hover {
  transform: translateY(-6px) scale(1.01);
  box-shadow: 
    var(--shadow-card-hover),
    inset 0 0 30px rgba(212,168,75,0.02),
    inset 0 1px 0 rgba(255,255,255,0.9);
}

.quote-card::before {
  content: '"';
  position: absolute;
  top: 18px;
  left: 24px;
  font-size: 4.5rem;
  font-family: Georgia, "Times New Roman", serif;
  line-height: 1;
  background: var(--gradient-gold);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  opacity: 0.25;
  font-weight: 700;
}

.quote-text {
  font-style: italic;
  font-size: 1rem;
  color: var(--color-dark-soft);
  margin-bottom: 18px;
  padding-left: 24px;
  position: relative;
  z-index: 1;
  line-height: 1.85;
}

.quote-author {
  font-size: 0.87rem;
  color: var(--color-gray);
  text-align: right;
  line-height: 1.6;
}

.quote-author strong {
  color: var(--color-primary);
  font-weight: 600;
}

/* ========================================
   8. FAQ Section
   ======================================== */
.faq-list {
  max-width: 900px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1fr;
  gap: 10px;
}

/* FAQ区域标题也缩小 */
#faq-preview .section-title h2 { font-size: 1.5rem; }
#faq-preview .section-title p { font-size: 0.85rem; opacity: 0.7; }

.faq-item {
  background: var(--gradient-card);
  border-radius: var(--radius-sm);
  margin-bottom: 0; /* grid布局不需要margin */
  box-shadow: 0 1px 3px rgba(0,0,0,0.04);
  overflow: hidden;
  border: 1px solid rgba(139,105,20,0.06);
  transition: var(--transition-base);
}

.faq-item:hover {
  box-shadow: 0 2px 8px rgba(212,168,75,0.1);
}

.faq-question {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
  padding: 14px 18px;
  background: none;
  border: none;
  font-size: 0.88rem;
  font-weight: 600;
  color: var(--color-dark);
  cursor: pointer;
  text-align: left;
  font-family: var(--font-body);
  transition: var(--transition-fast);
  letter-spacing: 0.01em;
}

.faq-question:hover {
  color: var(--color-primary);
}

.faq-icon {
  font-size: 1rem;
  color: var(--color-gold);
  transition: transform 0.3s ease;
  flex-shrink: 0;
  margin-left: 12px;
  font-weight: 300;
}

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

.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.35s ease, padding 0.25s ease;
  padding: 0 18px;
}

.faq-item.active .faq-answer {
  max-height: 800px;
  padding: 0 18px 16px;
}

.faq-answer p {
  font-size: 0.82rem;
  line-height: 1.7;
  color: var(--color-gray);
}

.faq-answer strong {
  color: var(--color-primary-dark);
}

/* 移动端恢复单列 */
@media (max-width: 768px) {
  .faq-list { grid-template-columns: 1fr; gap: 8px; }
  .faq-question { padding: 13px 16px; font-size: 0.86rem; }
  .faq-answer p { font-size: 0.8rem; }
}

/* ========================================
   8.5 FAQ 搜索框样式
   ======================================== */
.faq-search-wrapper {
  max-width: 600px;
  margin: 0 auto 32px;
}

.faq-search-box {
  display: flex;
  align-items: center;
  background: var(--color-white);
  border: 2px solid var(--color-border);
  border-radius: var(--radius-full);
  padding: 4px 6px 4px 20px;
  transition: border-color 0.3s ease, box-shadow 0.3s ease;
}

.faq-search-box:focus-within {
  border-color: var(--color-primary);
  box-shadow: 0 0 0 4px rgba(139,105,20,0.1), var(--glow-gold);
}

.faq-search-icon {
  font-size: 1.05rem;
  flex-shrink: 0;
  margin-right: 10px;
  opacity: 0.6;
}

.faq-search-input {
  flex: 1;
  border: none;
  outline: none;
  background: transparent;
  font-size: 0.95rem;
  color: var(--color-dark);
  padding: 10px 4px;
  font-family: var(--font-body);
  min-width: 0;
}

.faq-search-input::placeholder {
  color: var(--color-gray);
  opacity: 0.7;
}

.faq-search-clear {
  background: var(--color-gray-light);
  border: none;
  border-radius: 50%;
  width: 28px;
  height: 28px;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  font-size: 0.8rem;
  color: var(--color-gray);
  flex-shrink: 0;
  transition: background 0.2s, color 0.2s;
  line-height: 1;
}

.faq-search-clear:hover {
  background: #ddd;
  color: var(--color-dark);
}

.faq-search-count {
  text-align: center;
  font-size: 0.85rem;
  color: var(--color-gray);
  margin-top: 8px;
  min-height: 20px;
  display: none;
}

/* ========================================
   8.6 媒体报道 / 品牌动态卡片样式
   ======================================== */
.media-list {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
}

@media (max-width: 768px) {
  .media-list { grid-template-columns: 1fr; gap: 18px; }
}

.media-card {
  background: var(--gradient-card);
  border-radius: var(--radius-md);
  padding: 28px 30px;
  box-shadow: var(--shadow-card);
  border: 1px solid rgba(139,105,20,0.08);
  transition: transform 0.35s var(--transition-base), box-shadow 0.35s ease, border-color 0.35s ease;
  position: relative;
  overflow: hidden;
}

.media-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 3px;
  background: var(--gradient-gold-subtle);
  opacity: 0;
  transition: opacity 0.35s ease;
}

.media-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-card-hover);
  border-color: rgba(212,168,75,0.25);
}

.media-card:hover::before {
  opacity: 1;
}

.media-card-header {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 14px;
}

.media-tag {
  font-size: 0.72rem;
  font-weight: bold;
  padding: 3px 12px;
  border-radius: 20px;
  letter-spacing: 0.03em;
  white-space: nowrap;
}
.media-tag-gold { background: linear-gradient(135deg, #F5E6C8, #F5D799); color: #7A5A00; }
.media-tag-red { background: linear-gradient(135deg, #FFEBEE, #FFCDD2); color: #C62828; }
.media-tag-blue { background: linear-gradient(135deg, #E3F2FD, #BBDEFB); color: #1565C0; }
.media-tag-green { background: linear-gradient(135deg, #E8F5E9, #C8E6C9); color: #2E7D32; }
.media-tag-purple { background: linear-gradient(135deg, #F3E5F5, #E1BEE7); color: #7B1FA2; }
.media-tag-teal { background: linear-gradient(135deg, #E0F2F1, #B2DFDB); color: #00695C; }

.media-date {
  font-size: 0.82rem;
  color: var(--color-gray);
}

.media-title {
  font-size: 1.06rem;
  font-weight: 700;
  line-height: 1.55;
  color: var(--color-dark);
  margin-bottom: 12px;
  /* 限制最多显示3行 */
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.media-summary {
  font-size: 0.87rem;
  line-height: 1.75;
  color: var(--color-gray);
  margin-bottom: 16px;
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.media-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: 14px;
  border-top: 1px solid rgba(139,105,20,0.1);
}

.media-source {
  font-size: 0.83rem;
  color: var(--color-gray);
}

.media-link {
  font-size: 0.86rem;
  font-weight: 600;
  color: var(--color-primary);
  text-decoration: none;
  transition: color 0.25s;
  letter-spacing: 0.02em;
}

.media-link:hover {
  color: var(--color-gold-dark);
  text-decoration: underline;
}

/* ========================================
   8.7 Gallery - 精彩瞬间图片画廊
   ======================================== */
.gallery-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
}

/* 基础图片项 - 默认1列宽 */
.gallery-item {
  position: relative;
  border-radius: var(--radius-md);
  overflow: hidden;
  background: #0a0806;
  box-shadow: var(--shadow-card);
  transition: all 0.5s cubic-bezier(0.25, 0.46, 0.45, 0.94);
  cursor: pointer;
}

.gallery-item:hover {
  transform: translateY(-6px) scale(1.02);
  box-shadow: var(--shadow-card-hover), 0 20px 60px rgba(212,168,75,0.12);
  z-index: 2;
}

.gallery-item img {
  width: 100%;
  height: 260px;
  object-fit: cover;
  display: block;
  transition: transform 0.6s ease;
}

.gallery-item:hover img {
  transform: scale(1.06);
}

/* 宽版图片（跨2列） */
.gallery-wide {
  grid-column: span 2;
}

.gallery-wide img {
  height: 300px;
}

/* 高版图片 */
.gallery-tall img {
  height: 340px;
}

/* 图片说明层 */
.gallery-item figcaption {
  position: absolute;
  bottom: 0; left: 0; right: 0;
  padding: 40px 16px 14px;
  background: linear-gradient(to top, rgba(10,8,6,0.92) 0%, rgba(10,8,6,0.7) 60%, transparent 100%);
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.gallery-caption {
  font-size: 0.88rem;
  font-weight: 600;
  color: #F5D799;
  line-height: 1.4;
}

.gallery-meta {
  font-size: 0.75rem;
  color: rgba(230,215,190,0.65);
  letter-spacing: 0.3px;
}

/* 悬浮时图片顶部金色光效 */
.gallery-item::after {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 2px;
  background: linear-gradient(90deg, transparent, rgba(212,168,75,0.6), transparent);
  opacity: 0;
  transition: opacity 0.35s ease;
}

.gallery-item:hover::after {
  opacity: 1;
}

/* FAQ搜索框移动端适配 */
@media (max-width: 768px) {
  .faq-search-wrapper { margin-bottom: 24px; }
  .faq-search-input { font-size: 0.9rem; padding: 8px 4px; }
  .faq-search-icon { font-size: 0.95rem; }
  .media-card { padding: 22px 20px; }
  .media-title { font-size: 0.98rem; -webkit-line-clamp: 2; }
  .media-summary { -webkit-line-clamp: 2; font-size: 0.83rem; }
}

/* ========================================
   9. Table Styles
   ======================================== */
.table-wrapper {
  overflow-x: auto;
  margin: 24px 0;
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-card);
}

table {
  width: 100%;
  border-collapse: collapse;
  background: var(--color-white);
  border-radius: var(--radius-md);
  overflow: hidden;
  box-shadow: var(--shadow-card);
}

thead {
  background: var(--gradient-tea);
  color: white;
}

th {
  padding: 15px 20px;
  text-align: left;
  font-weight: 600;
  font-size: 0.88rem;
  letter-spacing: 0.5px;
  text-transform: uppercase;
}

td {
  padding: 13px 20px;
  border-bottom: 1px solid var(--color-border);
  font-size: 0.92rem;
  vertical-align: top;
}

tbody tr {
  transition: var(--transition-fast);
}

tbody tr:hover {
  background: var(--color-gold-light);
}

tbody tr:last-child td {
  border-bottom: none;
}

table .highlight { color: var(--color-accent); font-weight: 600; }
table .price-cell { font-weight: 700; color: var(--color-primary); white-space: nowrap; font-family: var(--font-display); }

/* ========================================
   10. Brand Ecosystem Grid - 品牌生态网格 v3.0
   ======================================== */

/* 六大核心品牌 / 产品品牌 - 统一3列2行 */
.ecosystem-grid,
.brand-core-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
  margin: 36px 0;
}

.brand-chip {
  background: var(--gradient-card);
  border: 1px solid rgba(139,105,20,0.08);
  border-radius: var(--radius-lg);
  padding: 32px 24px;
  text-align: center;
  transition: all 0.5s cubic-bezier(0.25, 0.46, 0.45, 0.94);
  cursor: default;
  position: relative;
  overflow: hidden;
  box-shadow: var(--shadow-card), inset 0 0 0 1px rgba(255,255,255,0.8);
}

/* 光泽扫过效果 - 更亮更流畅 */
.brand-chip::before {
  content: '';
  position: absolute;
  top: 0; left: -100%;
  width: 65%; height: 100%;
  background: linear-gradient(
    105deg,
    transparent 0%,
    rgba(255,255,255,0.55) 42%,
    rgba(212,168,75,0.12) 48%,
    rgba(255,255,255,0.18) 52%,
    transparent 56%
  );
  transition: left 0.8s cubic-bezier(0.25, 0.46, 0.45, 0.94);
  pointer-events: none;
}

.brand-chip:hover::before {
  left: calc(100% + 35%);
}

/* 悬浮径向光效 */
.brand-chip::after {
  content: '';
  position: absolute;
  top: 50%; left: 50%;
  width: 200%; height: 200%;
  transform: translate(-50%, -50%) scale(0);
  background: radial-gradient(circle at center, rgba(212,168,75,0.16) 0%, transparent 55%);
  transition: transform 0.6s cubic-bezier(0.34, 1.56, 0.64, 1), opacity 0.4s ease;
  opacity: 0;
  pointer-events: none;
}

.brand-chip:hover {
  border-color: rgba(212,168,75,0.35);
  box-shadow: 
    0 12px 40px rgba(139,105,20,0.16),
    0 4px 16px rgba(212,168,75,0.08),
    inset 0 1px 0 rgba(255,255,255,0.95),
    inset 0 0 40px rgba(212,168,75,0.03);
  transform: translateY(-8px) scale(1.03);
}

.brand-chip:hover::after {
  transform: translate(-50%, -50%) scale(1);
  opacity: 1;
}

.brand-chip-name {
  font-weight: 700;
  font-size: 1.15rem;
  color: var(--color-primary-dark);
  margin-bottom: 10px;
  position: relative;
  z-index: 1;
  letter-spacing: 0.02em;
  transition: color var(--transition-base);
}

.brand-chip:hover .brand-chip-name {
  color: var(--color-primary);
}

.brand-chip-desc {
  font-size: 0.88rem;
  color: var(--color-gray);
  position: relative;
  z-index: 1;
  line-height: 1.65;
}

.brand-chip-url {
  font-size: 0.78rem;
  color: var(--color-primary);
  margin-top: 10px;
  position: relative;
  z-index: 1;
  font-weight: 500;
  opacity: 0.7;
  transition: opacity var(--transition-fast);
}

.brand-chip:hover .brand-chip-url {
  opacity: 1;
}

/* Three Pillars (集团三大核心身份) */
.pillars {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
  margin: 36px 0;
}

.pillar {
  background: var(--gradient-card);
  border-radius: var(--radius-lg);
  padding: 40px 28px;
  text-align: center;
  box-shadow: var(--shadow-card);
  border: 1px solid rgba(139,105,20,0.06);
  transition: var(--transition-spring);
  position: relative;
  overflow: hidden;
}

.pillar::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 4px;
  background: var(--gradient-gold);
}

.pillar:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-card-hover);
}

.pillar-icon {
  font-size: 2.8rem;
  margin-bottom: 20px;
  display: block;
  transition: var(--transition-base);
}

.pillar:hover .pillar-icon {
  transform: scale(1.15) rotate(5deg);
}

.pillar h3 {
  margin-bottom: 14px;
  font-size: 1.25rem;
  color: var(--color-dark);
}

.pillar p {
  font-size: 0.9rem;
  line-height: 1.8;
}

/* ========================================
   11. Page Header (内页通用)
   ======================================== */
.page-header {
  background: var(--gradient-hero);
  padding: 80px 0 56px;
  text-align: center;
  color: white;
  position: relative;
  overflow: hidden;
}

.page-header::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0; bottom: 0;
  background-image: 
    linear-gradient(rgba(212,168,75,0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(212,168,75,0.03) 1px, transparent 1px);
  background-size: 48px 48px;
  mask-image: radial-gradient(ellipse at center, black 20%, transparent 70%);
  -webkit-mask-image: radial-gradient(ellipse at center, black 20%, transparent 70%);
  pointer-events: none;
}

.page-header::after {
  content: '';
  position: absolute;
  bottom: 0; left: 0; right: 0;
  height: 80px;
  background: linear-gradient(to top, var(--color-white), transparent);
  pointer-events: none;
}

.page-header h1 {
  color: white;
  border: none;
  font-size: clamp(1.8rem, 4vw, 2.4rem);
  margin-bottom: 14px;
  position: relative;
  letter-spacing: 0.04em;
}

.page-header p {
  opacity: 0.82;
  font-size: 1.05rem;
  position: relative;
}

.breadcrumb {
  display: flex;
  justify-content: center;
  gap: 10px;
  margin-top: 20px;
  font-size: 0.88rem;
  position: relative;
}

.breadcrumb a {
  color: var(--color-gold);
  font-weight: 500;
  transition: var(--transition-fast);
}

.breadcrumb a:hover {
  color: white;
}

.breadcrumb span { opacity: 0.5; }

/* Content Area for inner pages */
.content-area {
  padding: 70px 0;
}

.content-area .content-block {
  margin-bottom: 52px;
}

.content-area .content-block:last-child {
  margin-bottom: 0;
}

/* ========================================
   12. Footer v5.0 奢华版
   ======================================== */
.footer {
  background: var(--gradient-dark-section);
  color: rgba(255,255,255,0.55);
  padding: 72px 0 0;
  position: relative;
  overflow: hidden;
}

/* Footer顶部金色渐变分隔线 - 更宽更亮 */
.footer::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 1px;
  background: linear-gradient(
    90deg, 
    transparent 5%, 
    rgba(212,168,75,0.15) 20%,
    rgba(212,168,75,0.4) 50%, 
    rgba(212,168,75,0.15) 80%,
    transparent 95%
  );
}

/* Footer底部微光效果 */
.footer::after {
  content: '';
  position: absolute;
  bottom: 0; left: 30%;
  width: 40%; height: 200px;
  background: radial-gradient(ellipse at center bottom, rgba(212,168,75,0.03) 0%, transparent 70%);
  pointer-events: none;
}

.footer-grid {
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  gap: 32px;
  margin-bottom: 48px;
}

/* Footer中间4列文字居中对齐 */
.footer-col:nth-child(2),
.footer-col:nth-child(3),
.footer-col:nth-child(4),
.footer-col:nth-child(5) {
  text-align: center;
}

.footer-col:nth-child(2) h4::after,
.footer-col:nth-child(3) h4::after,
.footer-col:nth-child(4) h4::after,
.footer-col:nth-child(5) h4::after {
  margin-left: auto;
  margin-right: auto;
}

.footer-col:nth-child(2) a,
.footer-col:nth-child(3) a,
.footer-col:nth-child(4) a,
.footer-col:nth-child(5) a {
  display: block;
}

.footer-col:nth-child(2) a::before,
.footer-col:nth-child(3) a::before,
.footer-col:nth-child(4) a::before,
.footer-col:nth-child(5) a::before {
  left: 50%;
  transform: translateX(-50%);
  width: 0;
}

.footer-col:nth-child(2) a:hover::before,
.footer-col:nth-child(3) a:hover::before,
.footer-col:nth-child(4) a:hover::before,
.footer-col:nth-child(5) a:hover::before {
  width: 100%;
}

.footer-col h4 {
  color: rgba(255,255,255,0.95);
  font-size: 1rem;
  margin-bottom: 22px;
  border: none;
  position: relative;
  font-family: var(--font-body);
  font-weight: 650;
  letter-spacing: 1.5px;
}

.footer-col h4::after {
  content: '';
  display: block;
  width: 32px;
  height: 2px;
  background: var(--gradient-gold);
  margin-top: 12px;
  border-radius: 2px;
  box-shadow: 0 0 8px rgba(212,168,75,0.3);
}

.footer-col ul {
  list-style: none;
  padding: 0;
}

.footer-col li {
  margin-bottom: 11px;
}

.footer-col a {
  color: rgba(255,255,255,0.55);
  font-size: 0.88rem;
  transition: var(--transition-fast);
  display: inline-block;
  position: relative;
}

.footer-col a::before {
  content: '';
  position: absolute;
  bottom: -2px;
  left: 0;
  width: 0;
  height: 1px;
  background: var(--color-gold);
  transition: width 0.3s ease;
}

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

.footer-col a:hover::before {
  width: 100%;
}

.footer-bottom {
  border-top: 1px solid rgba(255,255,255,0.06);
  padding: 24px 0;
  text-align: center;
  font-size: 0.83rem;
  color: rgba(255,255,255,0.35);
  position: relative;
}

.footer-bottom::before {
  content: '';
  position: absolute;
  top: -1px; left: 20%; right: 20%;
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(212,168,75,0.15), transparent);
}

.footer-bottom a {
  color: var(--color-gold);
  transition: var(--transition-fast);
}

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

/* ========================================
   13. Utility Classes
   ======================================== */
.text-center { text-align: center; }
.text-primary { color: var(--color-primary); }
.text-gold { color: var(--color-gold); }
.text-accent { color: var(--color-accent); }
.mt-20 { margin-top: 20px; }
.mt-40 { margin-top: 40px; }
.mb-20 { margin-bottom: 20px; }
.mb-40 { margin-bottom: 40px; }
.hidden { display: none !important; }

/* ========================================
   14. Scroll Animations
   ======================================== */
.reveal {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}

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

/* Stagger children */
.stagger-reveal > * {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.5s ease, transform 0.5s ease;
}

.stagger-reveal.visible > *:nth-child(1) { transition-delay: 0s; opacity: 1; transform: translateY(0); }
.stagger-reveal.visible > *:nth-child(2) { transition-delay: 0.1s; opacity: 1; transform: translateY(0); }
.stagger-reveal.visible > *:nth-child(3) { transition-delay: 0.2s; opacity: 1; transform: translateY(0); }
.stagger-reveal.visible > *:nth-child(4) { transition-delay: 0.3s; opacity: 1; transform: translateY(0); }
.stagger-reveal.visible > *:nth-child(5) { transition-delay: 0.4s; opacity: 1; transform: translateY(0); }
.stagger-reveal.visible > *:nth-child(6) { transition-delay: 0.5s; opacity: 1; transform: translateY(0); }

/* Keyframes for hero animations */
@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 shimmer {
  0% { background-position: -200% 0; }
  100% { background-position: 200% 0; }
}

@keyframes pulse-glow {
  0%, 100% { box-shadow: 0 0 20px rgba(212,168,75,0.15); }
  50% { box-shadow: 0 0 40px rgba(212,168,75,0.3); }
}

@keyframes badgeShimmer {
  0%, 100% { 
    box-shadow: 0 0 20px rgba(212,168,75,0.15), inset 0 0 20px rgba(212,168,75,0.05); 
    border-color: rgba(212,168,75,0.3); 
  }
  50% { 
    box-shadow: 0 0 30px rgba(212,168,75,0.25), inset 0 0 25px rgba(212,168,75,0.08), 0 2px 20px rgba(0,0,0,0.25); 
    border-color: rgba(212,168,75,0.45); 
  }
}

/* Smooth scrollbar styling */
::-webkit-scrollbar { width: 8px; }
::-webkit-scrollbar-track { background: var(--color-gray-light); }
::-webkit-scrollbar-thumb { background: linear-gradient(var(--color-gold), var(--color-primary)); border-radius: 4px; }
::-webkit-scrollbar-thumb:hover { background: var(--color-primary-dark); }

/* ========================================
   15. Responsive Design
   ======================================== */

@media (max-width: 1024px) {
  .cards-grid { grid-template-columns: repeat(2, 1fr); gap: 22px; }
  
  .pillars {
    grid-template-columns: 1fr;
    max-width: 480px;
    margin-left: auto;
    margin-right: auto;
  }
  .data-bar {
    gap: 20px 32px;
    padding: 24px 28px;
  }
  .data-item:nth-child(n+5)::after { display: none; }
  .hero { padding: 110px 0 80px; min-height: auto; }
  .section { padding: 76px 0; }
}

@media (max-width: 768px) {
  :root {
    --max-width: 100%;
  }
  
  .header-inner { padding: 0 16px; height: 64px; }
  
  .nav {
    display: none;
    position: fixed;
    top: 64px;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(180deg, rgba(22,18,14,0.98) 0%, rgba(16,13,10,0.99) 100%);
    backdrop-filter: blur(24px);
    flex-direction: column;
    padding: 30px 24px;
    overflow-y: auto;
    z-index: 999;
  }
  
  .nav.active { display: flex; }
  
  .nav > .nav-item {
    width: 100%;
    border-bottom: 1px solid rgba(212,168,75,0.1);
  }
  
  .nav > .nav-item > a {
    padding: 16px 0;
    font-size: 1.05rem;
    color: rgba(230,215,190,0.9);
  }
  
  .dropdown-menu {
    position: static;
    opacity: 1;
    visibility: visible;
    transform: none;
    box-shadow: none;
    border: none;
    padding: 0 0 0 16px;
    display: none;
    background: transparent;
  }
  
  .dropdown-menu::before { display: none; }
  
  .nav-item.dropdown-open .dropdown-menu { display: block; }
  .nav-toggle { display: flex; }
  
  .hero {
    padding: 90px 0 64px;
    min-height: 78vh;
  }
  
  .hero h1 { font-size: 1.9rem; letter-spacing: 0.02em; }
  .hero-buttons { flex-direction: column; align-items: stretch; }
  .btn { padding: 14px 28px; justify-content: center; }
  
  .data-bar {
    flex-wrap: wrap;
    gap: 16px 24px;
    padding: 20px;
  }
  
  .data-item { min-width: calc(33% - 16px); }
  .data-item::after { display: none !important; }
  .data-num { font-size: 1.5rem; }
  
  .cards-grid { grid-template-columns: 1fr; gap: 20px; }
  .quotes-grid { grid-template-columns: 1fr; gap: 20px; }
  .section { padding: 56px 0; }
  .section-title { margin-bottom: 44px; }
  .section-title h2 { font-size: 1.6rem; }
  
  .business-card {
    padding: 28px 24px;
  }
  
  .ecosystem-grid,
  .brand-core-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 20px;
  }
  
  .footer-grid {
    grid-template-columns: 1fr;
    text-align: center;
    gap: 36px;
  }

  /* 画廊平板适配 */
  .gallery-grid { grid-template-columns: repeat(2, 1fr); }
  .gallery-wide { grid-column: span 2; }
  .gallery-tall img { height: 260px; }
}
  
  table { font-size: 0.82rem; }
  th, td { padding: 10px 12px; }
  
  .page-header { padding: 64px 0 48px; }
  .content-area { padding: 48px 0; }
}

@media (max-width: 480px) {
  .ecosystem-grid,
  .brand-core-grid { grid-template-columns: 1fr; }
  .data-item { min-width: calc(50% - 12px); }
  .hero-subtitle { font-size: 0.92rem; }
  .section-title p { font-size: 0.92rem; }
  /* 画廊移动端 */
  .gallery-grid {
    grid-template-columns: 1fr;
    gap: 12px;
  }
  .gallery-wide, .gallery-tall {
    grid-column: span 1;
  }
  .gallery-wide img, .gallery-tall img, .gallery-item img {
    height: 220px;
  }
}

/* ========================================
   v5.1 Enhancement - 动感质感国际化升级
   ======================================== */

/* 1. Section入场动画 - 滚动渐显 */
.stagger-reveal {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.7s cubic-bezier(0.25, 0.46, 0.45, 0.94),
              transform 0.7s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}
.stagger-reveal.visible {
  opacity: 1;
  transform: translateY(0);
}

/* 2. 卡片增强光泽效果 */
.business-card::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 3px;
  background: var(--gradient-gold);
  opacity: 0;
  transition: opacity 0.4s ease, height 0.35s ease;
  border-radius: var(--radius-lg) var(--radius-lg) 0 0;
}

.business-card:hover::before {
  opacity: 1;
  height: 4px;
}

/* 3. 按钮脉冲动画 */
.btn-primary:hover {
  box-shadow: 0 0 0 0 rgba(212,168,75,0.4);
  animation: btnPulse 1.5s infinite;
}
@keyframes btnPulse {
  0% { box-shadow: 0 0 0 0 rgba(212,168,75,0.4); }
  70% { box-shadow: 0 0 0 12px rgba(212,168,75,0); }
  100% { box-shadow: 0 0 0 0 rgba(212,168,75,0); }
}

/* 4. Logo微动画 */
.header .logo {
  transition: transform 0.3s ease;
}
.header .logo:hover {
  transform: scale(1.03);
}
.header .logo-icon {
  transition: filter 0.4s ease;
}
.header .logo:hover .logo-icon {
  filter: drop-shadow(0 0 8px rgba(212,168,75,0.3));
}

/* 5. 导航增强 */
.nav-item > a {
  position: relative;
  transition: color 0.3s ease;
}
.nav-item > a::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 50%;
  width: 0;
  height: 2px;
  background: var(--color-gold);
  transition: width 0.3s ease, left 0.3s ease;
  border-radius: 2px;
}
.nav-item:hover > a::after,
.nav-item.active > a::after {
  width: 80%;
  left: 10%;
}
.nav-item.active > a {
  color: var(--color-gold);
}

/* 6. Footer网格6列响应式优化 */
@media (max-width: 1200px) {
  .footer-grid {
    grid-template-columns: repeat(3, 1fr);
    gap: 28px;
  }
}
@media (max-width: 768px) {
  .footer-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 24px;
  }
}
@media (max-width: 480px) {
  .footer-grid {
    grid-template-columns: 1fr;
    text-align: center;
    gap: 28px;
  }
}

/* 7. content-block内FAQ列表确保单列布局 */
.content-block .faq-list,
.content-area .faq-list {
  grid-template-columns: 1fr;
}

/* 8. Data-bar数据条闪光效果 */
.data-item {
  position: relative;
  overflow: hidden;
}
.data-item::before {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(212,168,75,0.06), transparent);
  animation: dataShimmer 3s ease-in-out infinite;
}
.data-item:nth-child(2)::before { animation-delay: 0.3s; }
.data-item:nth-child(3)::before { animation-delay: 0.6s; }
.data-item:nth-child(4)::before { animation-delay: 0.9s; }
.data-item:nth-child(5)::before { animation-delay: 1.2s; }
.data-item:nth-child(6)::before { animation-delay: 1.5s; }

@keyframes dataShimmer {
  0% { left: -100%; }
  100% { left: 100%; }
}

/* 9. Section分隔线金光效果 */
.section-title h2::after {
  content: '';
  display: block;
  width: 60px;
  height: 2px;
  background: var(--gradient-gold);
  margin: 16px auto 0;
  border-radius: 2px;
  box-shadow: 0 0 10px rgba(212,168,75,0.3);
}

/* 10. 页面整体质感纹理增强 */
.content-area {
  background-image: 
    radial-gradient(circle at 1px 1px, rgba(139,105,20,0.02) 1px, transparent 0);
  background-size: 40px 40px;
}

/* 11. 竖条显示修复 - 确保列表内容横向排列 */
.content-block ul,
.content-area ul {
  list-style: disc;
  padding-left: 1.8rem;
}
.content-block ol,
.content-area ol {
  padding-left: 1.8rem;
}
.content-block li,
.content-area li {
  margin-bottom: 0.5rem;
  line-height: 1.75;
  color: var(--color-gray);
}

/* 12. 平滑滚动进度指示 */
.scroll-progress {
  position: fixed;
  top: 0;
  left: 0;
  height: 2px;
  background: var(--gradient-gold);
  z-index: 9999;
  transition: width 0.1s linear;
  box-shadow: 0 0 6px rgba(212,168,75,0.5);
}

/* 13. Contact区域提升 */
.contact-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
  gap: 24px;
}
.pillar {
  text-align: center;
  padding: 32px 20px;
  background: var(--gradient-card);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-card);
  border: 1px solid rgba(139,105,20,0.06);
  transition: var(--transition-base);
}
.pillar:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-card-hover);
  border-color: rgba(212,168,75,0.15);
}

/* 14. 页面header渐变背景增强 */
.page-header {
  background: var(--gradient-hero);
  position: relative;
  overflow: hidden;
  padding: 80px 0 56px;
  text-align: center;
}
.page-header::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0; bottom: 0;
  background: radial-gradient(ellipse at 50% 120%, rgba(212,168,75,0.08) 0%, transparent 60%);
  pointer-events: none;
}
.page-header h1 {
  color: var(--color-gold);
  text-shadow: var(--glow-gold);
  position: relative;
}
.page-header p {
  color: rgba(255,255,255,0.7);
  position: relative;
}