/* ============================================
   尺度传媒官网 - 主样式文件
   主色: #1a1a1a (深黑) | 品牌红: #C41E1E | 辅色: #f5f5f5
   ============================================ */

/* === CSS变量 === */
:root {
  --primary: #1a1a1a;
  --red: #C41E1E;
  --red-dark: #9e1818;
  --red-light: #e8332a;
  --white: #ffffff;
  --gray-100: #f8f8f8;
  --gray-200: #efefef;
  --gray-300: #d4d4d4;
  --gray-500: #888888;
  --gray-700: #444444;
  --text: #1a1a1a;
  --text-light: #666666;
  --font: 'Noto Sans SC', 'PingFang SC', 'Microsoft YaHei', sans-serif;
  --transition: 0.3s cubic-bezier(0.25, 0.46, 0.45, 0.94);
  --shadow: 0 4px 24px rgba(0,0,0,0.08);
  --shadow-lg: 0 12px 48px rgba(0,0,0,0.12);
  --radius: 8px;
  --radius-lg: 16px;
  --nav-height: 70px;
}

/* === Reset === */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; font-size: 16px; }
body { font-family: var(--font); color: var(--text); background: var(--white); overflow-x: hidden; }
a { text-decoration: none; color: inherit; }
img { max-width: 100%; height: auto; }
ul { list-style: none; }

/* === 工具类 === */
.container { max-width: 1200px; margin: 0 auto; padding: 0 24px; }
.section { padding: 80px 0; }
.pc-only { display: inline; }

/* === 导航栏 === */
.navbar {
  position: fixed; top: 0; left: 0; right: 0; z-index: 1000;
  height: var(--nav-height);
  background: rgba(26,26,26,0.95);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid rgba(255,255,255,0.08);
  transition: all 0.4s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

/* 滚动时 - 渐变到浅色背景 */
.navbar.scrolled {
  background: rgba(255,255,255,0.98);
  box-shadow: 0 2px 20px rgba(0,0,0,0.08);
  border-bottom: 1px solid rgba(0,0,0,0.05);
}

/* 浅色背景下的logo — 缩小尺寸 */
.navbar.scrolled .logo-img {
  height: 36px;
  filter: none !important;
}

/* 浅色背景下的导航链接 */
.navbar.scrolled .nav-link {
  color: rgba(26,26,26,0.8) !important;
  transition: color 0.4s ease, background 0.4s ease;
}
.navbar.scrolled .nav-link:hover, 
.navbar.scrolled .nav-link.active {
  color: var(--red) !important;
  background: rgba(26,26,26,0.05) !important;
}

/* 确保在浅色状态下覆盖所有可能的基础样式 */
.navbar.scrolled .nav-menu .nav-link {
  color: rgba(26,26,26,0.8) !important;
}
.navbar.scrolled .nav-menu .nav-link:hover,
.navbar.scrolled .nav-menu .nav-link.active {
  color: var(--red) !important;
  background: rgba(26,26,26,0.05) !important;
}

/* 浅色背景下的微信按钮 */
.navbar.scrolled .nav-wechat {
  background: rgba(196,30,30,0.1) !important;
  color: var(--red) !important;
  border: 1px solid rgba(196,30,30,0.2) !important;
}
.navbar.scrolled .nav-wechat:hover {
  background: var(--red) !important;
  color: white !important;
}

/* 浅色背景下的汉堡菜单 */
.navbar.scrolled .nav-toggle span {
  background: var(--primary) !important;
}

/* 滚动方向指示器 - 用于动画优化 */
.navbar[data-scroll-dir="down"] {
  transition: transform 0.3s ease, background 0.4s ease;
}

.navbar[data-scroll-dir="up"] {
  transition: transform 0.3s ease, background 0.4s ease;
}

/* 在滚动较深时，可以添加轻微阴影增强可读性 */
.navbar.scrolled::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  right: 0;
  height: 4px;
  background: linear-gradient(to bottom, rgba(0,0,0,0.08), transparent);
  pointer-events: none;
}
.nav-container {
  max-width: 1200px; margin: 0 auto; padding: 0 24px;
  height: 100%; display: flex; align-items: center; justify-content: space-between;
}
.nav-logo { display: flex; align-items: center; }
/* 初始logo正常尺寸 */
.logo-img { height: 44px; width: auto; object-fit: contain; filter: brightness(0) invert(1); transition: height 0.3s ease, filter 0.5s cubic-bezier(0.4, 0, 0.2, 1); }
.nav-menu {
  display: flex; align-items: center; gap: 4px;
}
.nav-link {
  padding: 8px 14px; color: rgba(255,255,255,0.8); font-size: 14px;
  border-radius: 6px; transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1); white-space: nowrap;
  display: flex; align-items: center; gap: 6px;
}
.nav-link:hover, .nav-link.active { color: white; background: rgba(255,255,255,0.1); }
.nav-link.active { color: white; }
.nav-wechat {
  background: rgba(196,30,30,0.2); color: #ff8080 !important;
  border: 1px solid rgba(196,30,30,0.3);
}
.nav-wechat:hover { background: var(--red) !important; color: white !important; }
.nav-toggle {
  display: none; flex-direction: column; gap: 5px; cursor: pointer;
  background: none; border: none; padding: 8px;
}
.nav-toggle span {
  display: block; width: 24px; height: 2px; background: white;
  transition: var(--transition);
}

/* === Hero区 === */
.hero {
  min-height: 100vh; display: flex; flex-direction: column;
  justify-content: center; align-items: center; text-align: center;
  padding: calc(var(--nav-height) + 40px) 24px 40px;
  background: var(--primary); position: relative; overflow: hidden;
}
.hero-bg {
  position: absolute; inset: 0; z-index: 0;
  background: linear-gradient(135deg, #0d0d0d 0%, #1a1a1a 50%, #200808 100%);
}
.hero-grid {
  position: absolute; inset: 0;
  background-image:
    linear-gradient(rgba(196,30,30,0.05) 1px, transparent 1px),
    linear-gradient(90deg, rgba(196,30,30,0.05) 1px, transparent 1px);
  background-size: 60px 60px;
}
.hero-content { position: relative; z-index: 1; max-width: 800px; }
.hero-badge {
  display: inline-block; padding: 6px 18px;
  background: rgba(196,30,30,0.15); border: 1px solid rgba(196,30,30,0.4);
  color: #ff8080; font-size: 13px; border-radius: 20px;
  margin-bottom: 28px; letter-spacing: 0.05em;
}
.hero-title { margin-bottom: 24px; }
.hero-title-cn {
  display: block; font-size: clamp(52px, 10vw, 96px); font-weight: 900;
  color: white; line-height: 1.1; letter-spacing: -0.02em;
}
.hero-title-en {
  display: block; font-size: clamp(13px, 2vw, 18px); color: rgba(255,255,255,0.4);
  letter-spacing: 0.1em; margin-top: 8px; font-weight: 300;
}
.hero-desc {
  font-size: clamp(14px, 2vw, 17px); color: rgba(255,255,255,0.65);
  line-height: 1.8; margin-bottom: 40px;
}
.hero-actions { display: flex; gap: 16px; justify-content: center; flex-wrap: wrap; }
.hero-scroll {
  position: absolute; bottom: 40px; left: 50%; transform: translateX(-50%);
  display: flex; flex-direction: column; align-items: center; gap: 8px;
  color: rgba(255,255,255,0.3); font-size: 12px; z-index: 1;
}
.scroll-line {
  width: 1px; height: 40px;
  background: linear-gradient(to bottom, rgba(255,255,255,0.3), transparent);
  animation: scrollPulse 2s ease-in-out infinite;
}
@keyframes scrollPulse { 0%,100% { opacity: 0.3; } 50% { opacity: 1; } }

/* === 按钮 === */
.btn {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 12px 28px; border-radius: 6px; font-size: 15px; font-weight: 500;
  transition: var(--transition); cursor: pointer; border: none;
  white-space: nowrap; font-family: var(--font);
}
.btn-primary {
  background: var(--red); color: white;
}
.btn-primary:hover { background: var(--red-light); transform: translateY(-2px); box-shadow: 0 8px 24px rgba(196,30,30,0.4); }
.btn-outline {
  background: transparent; color: white; border: 1.5px solid rgba(255,255,255,0.4);
}
.btn-outline:hover { border-color: white; background: rgba(255,255,255,0.1); }
.btn-outline-white {
  background: transparent; color: white; border: 1.5px solid rgba(255,255,255,0.5);
}
.btn-outline-white:hover { background: rgba(255,255,255,0.15); border-color: white; }
.btn-lg { padding: 16px 36px; font-size: 16px; }
.btn-sm { padding: 8px 20px; font-size: 14px; }

/* === 统计数据栏 === */
.stats-bar {
  background: var(--primary); padding: 0;
  border-top: 1px solid rgba(255,255,255,0.08);
}
.stats-grid {
  display: grid; grid-template-columns: repeat(4, 1fr);
  gap: 0;
}
.stat-item {
  padding: 40px 24px; text-align: center;
  border-right: 1px solid rgba(255,255,255,0.08);
  display: flex; flex-direction: column; gap: 8px;
}
.stat-item:last-child { border-right: none; }
.stat-num {
  font-size: clamp(32px, 5vw, 48px); font-weight: 900; color: white; line-height: 1;
}
.stat-num i { font-size: 0.5em; color: var(--red); font-style: normal; }
.stat-label { font-size: 13px; color: rgba(255,255,255,0.5); }

/* === 章节通用 === */
.section-header { text-align: center; margin-bottom: 60px; }
.section-tag {
  display: inline-block; font-size: 12px; letter-spacing: 0.15em;
  color: var(--red); margin-bottom: 12px; font-weight: 600;
}
.section-title { font-size: clamp(28px, 4vw, 40px); font-weight: 800; color: var(--primary); margin-bottom: 16px; }
.section-desc { font-size: 16px; color: var(--text-light); line-height: 1.8; max-width: 600px; margin: 0 auto; }

/* === 核心业务 === */
.services-section { background: var(--gray-100); }
.services-layout { display: grid; grid-template-columns: 240px 1fr; gap: 32px; align-items: start; }
.service-core {
  background: var(--primary); border-radius: var(--radius-lg);
  aspect-ratio: 1; display: flex; align-items: center; justify-content: center;
  position: relative; overflow: hidden;
  box-shadow: 0 20px 60px rgba(0,0,0,0.2);
}
.service-core::before {
  content: ''; position: absolute; inset: 0;
  background: radial-gradient(circle at 30% 30%, rgba(196,30,30,0.2), transparent 60%);
}
.service-core-inner { text-align: center; color: white; z-index: 1; padding: 20px; }
.service-core-inner h3 { font-size: 20px; font-weight: 800; margin-top: 16px; }
.service-core-inner p { font-size: 12px; color: rgba(255,255,255,0.5); margin-top: 4px; }
.services-wings { display: flex; flex-direction: column; gap: 20px; }
.service-card {
  background: white; border-radius: var(--radius-lg); padding: 28px 32px;
  display: block; transition: var(--transition); position: relative; overflow: hidden;
  border: 1px solid var(--gray-200);
}
.service-card::before {
  content: ''; position: absolute; left: 0; top: 0; bottom: 0; width: 4px;
  background: var(--red); transform: scaleY(0); transform-origin: top;
  transition: var(--transition);
}
.service-card:hover { transform: translateX(6px); box-shadow: var(--shadow-lg); border-color: transparent; }
.service-card:hover::before { transform: scaleY(1); }
.service-card-num {
  position: absolute; right: 28px; top: 24px;
  font-size: 48px; font-weight: 900; color: var(--gray-200); line-height: 1;
}
.service-card-icon { margin-bottom: 16px; }
.service-card h3 { font-size: 20px; font-weight: 700; margin-bottom: 4px; }
.service-card-sub { font-size: 13px; color: var(--red); margin-bottom: 10px; }
.service-card-desc { font-size: 14px; color: var(--text-light); line-height: 1.7; }
.service-card-more { display: inline-block; margin-top: 16px; font-size: 14px; color: var(--red); font-weight: 500; }

/* === 品牌矩阵 === */
.brands-section { background: white; }
.brands-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.brands-grid-2 { grid-template-columns: repeat(2, 1fr); }
.brand-card {
  border-radius: var(--radius-lg); overflow: hidden; display: block;
  position: relative; transition: var(--transition);
  border: 1px solid var(--gray-200);
}
.brand-card:hover { transform: translateY(-8px); box-shadow: var(--shadow-lg); }
.brand-card-bg {
  position: absolute; inset: 0; opacity: 0.03; transition: var(--transition);
}
.brand-gaolin .brand-card-bg { background: var(--red); }
.brand-cro .brand-card-bg { background: var(--primary); }
.brand-shiguang .brand-card-bg { background: var(--red); }
.brand-card:hover .brand-card-bg { opacity: 0.06; }
.brand-card-content { position: relative; padding: 36px 28px; }
.brand-logo-wrap { height: 64px; display: flex; align-items: center; margin-bottom: 16px; }
.brand-logo { max-height: 56px; width: auto; object-fit: contain; }
.brand-logo-fallback {
  height: 56px; width: 120px; background: var(--gray-200);
  border-radius: 8px; display: flex; align-items: center; justify-content: center;
  font-size: 14px; color: var(--gray-500);
}
.brand-icon-wrap { height: 64px; display: flex; align-items: center; margin-bottom: 16px; }
.brand-card h3 { font-size: 22px; font-weight: 800; margin-bottom: 4px; }
.brand-en { font-size: 11px; color: var(--gray-500); letter-spacing: 0.1em; margin-bottom: 14px; }
.brand-desc { font-size: 14px; color: var(--text-light); line-height: 1.7; margin-bottom: 16px; }
.brand-features { display: flex; flex-direction: column; gap: 6px; margin-bottom: 20px; }
.brand-features li {
  font-size: 13px; color: var(--text-light); padding-left: 14px; position: relative;
}
.brand-features li::before {
  content: ''; position: absolute; left: 0; top: 50%; transform: translateY(-50%);
  width: 6px; height: 6px; background: var(--red); border-radius: 50%;
}
.brand-link { font-size: 14px; color: var(--red); font-weight: 600; }

/* === 创始人 === */
.founder-section { background: var(--primary); }
.founder-layout { display: grid; grid-template-columns: 360px 1fr; gap: 64px; align-items: center; }
.founder-image-wrap { position: relative; border-radius: var(--radius-lg); overflow: hidden; aspect-ratio: 3/4; background: linear-gradient(135deg, #2a0a0a, #1a1a1a); }
.founder-image { width: 100%; height: 100%; object-fit: cover; object-position: center top; display: block; }
.founder-content { color: white; }
.founder-content .section-tag { color: rgba(196,30,30,0.8); }
.founder-name { font-size: 48px; font-weight: 900; margin: 8px 0; }
.founder-title { font-size: 15px; color: rgba(255,255,255,0.6); margin-bottom: 24px; }
.founder-divider { width: 48px; height: 3px; background: var(--red); margin-bottom: 24px; }
.founder-tags { display: flex; flex-wrap: wrap; gap: 8px; margin-bottom: 24px; }
.founder-tags span {
  padding: 6px 14px; background: rgba(196,30,30,0.15);
  border: 1px solid rgba(196,30,30,0.3); color: #ff9999;
  font-size: 12px; border-radius: 4px;
}
.founder-bio { font-size: 15px; color: rgba(255,255,255,0.65); line-height: 1.9; margin-bottom: 32px; }

/* === 资源优势 === */
.resources-section { background: var(--gray-100); }
.resources-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; }
.resource-item {
  background: white; border-radius: var(--radius-lg); padding: 32px 24px;
  position: relative; overflow: hidden; transition: var(--transition);
  border: 1px solid var(--gray-200);
}
.resource-item:hover { transform: translateY(-4px); box-shadow: var(--shadow-lg); border-color: var(--red); }
.resource-num {
  position: absolute; right: 20px; top: 16px;
  font-size: 36px; font-weight: 900; color: var(--gray-200); line-height: 1;
}
.resource-icon { margin-bottom: 16px; }
.resource-item h3 { font-size: 16px; font-weight: 700; margin-bottom: 10px; }
.resource-item p { font-size: 13px; color: var(--text-light); line-height: 1.7; }
.resource-item strong { color: var(--red); }

/* === 客户展示 === */
.cases-section { background: white; }
.clients-grid { display: grid; grid-template-columns: repeat(6, 1fr); gap: 16px; margin-bottom: 40px; }
.client-item {
  border: 1.5px solid var(--gray-200); border-radius: var(--radius);
  padding: 20px 12px; text-align: center; font-size: 14px; font-weight: 600;
  color: var(--text-light); transition: var(--transition);
  display: flex; align-items: center; justify-content: center; min-height: 70px;
}
.client-item:hover { border-color: var(--red); color: var(--red); }
.client-more { background: var(--gray-100); color: var(--red); border-style: dashed; }
.cases-cta { text-align: center; }

/* === 活动动态 === */
.events-section { background: var(--gray-100); }
.events-timeline { display: flex; flex-direction: column; gap: 24px; }
.event-main {
  background: var(--primary); border-radius: var(--radius-lg); padding: 36px 40px;
  display: grid; grid-template-columns: auto 1fr; gap: 32px; align-items: center;
  position: relative; overflow: hidden;
}
.event-main::before {
  content: ''; position: absolute; right: -40px; top: -40px;
  width: 200px; height: 200px;
  background: radial-gradient(circle, rgba(196,30,30,0.15), transparent 60%);
}
.event-badge {
  position: absolute; top: 20px; right: 24px;
  background: var(--red); color: white; font-size: 12px; padding: 4px 12px;
  border-radius: 20px; font-weight: 600;
}
.event-date-block { text-align: center; }
.event-month { display: block; font-size: 32px; font-weight: 900; color: var(--red); }
.event-label { display: block; font-size: 12px; color: rgba(255,255,255,0.5); margin-top: 4px; }
.event-content h3 { font-size: 22px; font-weight: 800; color: white; margin-bottom: 8px; }
.event-location { font-size: 14px; color: rgba(255,255,255,0.5); margin-bottom: 12px; }
.event-desc { font-size: 14px; color: rgba(255,255,255,0.65); line-height: 1.7; margin-bottom: 20px; }
.events-cities {
  display: grid; grid-template-columns: repeat(9, 1fr); gap: 12px;
}
.city-event {
  background: white; border-radius: var(--radius); padding: 16px 8px; text-align: center;
  border: 1px solid var(--gray-200); transition: var(--transition);
}
.city-event:hover { border-color: var(--red); box-shadow: 0 4px 16px rgba(196,30,30,0.1); }
.city-month { display: block; font-size: 18px; font-weight: 800; color: var(--red); }
.city-name { display: block; font-size: 12px; color: var(--text-light); margin-top: 4px; }

/* === 公益计划 === */
.csr-section { background: white; }
.csr-layout { display: grid; grid-template-columns: 1fr 1fr; gap: 64px; align-items: center; }
.csr-text .section-tag { text-align: left; display: block; }
.csr-text h2 { font-size: 36px; font-weight: 800; margin: 8px 0 16px; }
.csr-text > p { font-size: 15px; color: var(--text-light); line-height: 1.8; margin-bottom: 32px; }
.csr-pillars { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; }
.csr-pillar {
  background: var(--gray-100); border-radius: var(--radius);
  padding: 20px 12px; text-align: center; display: flex; flex-direction: column; gap: 6px;
  transition: var(--transition);
}
.csr-pillar:hover { background: rgba(196,30,30,0.05); }
.pillar-icon { font-size: 28px; }
.csr-pillar span { font-size: 15px; font-weight: 700; }
.csr-pillar small { font-size: 12px; color: var(--text-light); }
.csr-visual {
  background: var(--primary); border-radius: var(--radius-lg);
  padding: 48px; display: flex; align-items: center; justify-content: center;
}
.csr-quote blockquote {
  font-size: 18px; color: rgba(255,255,255,0.85); line-height: 1.8;
  border-left: 3px solid var(--red); padding-left: 24px; font-style: italic;
}
.csr-quote cite { display: block; margin-top: 16px; font-size: 13px; color: rgba(255,255,255,0.4); font-style: normal; }

/* === CTA区 === */
.cta-section {
  background: var(--red);
  background-image: linear-gradient(135deg, #9e1818, #C41E1E, #e8332a);
  padding: 80px 0;
}
.cta-content { text-align: center; }
.cta-content h2 { font-size: clamp(24px, 3vw, 36px); font-weight: 800; color: white; margin-bottom: 16px; }
.cta-content p { font-size: 16px; color: rgba(255,255,255,0.8); line-height: 1.8; margin-bottom: 36px; }
.cta-actions { display: flex; gap: 16px; justify-content: center; flex-wrap: wrap; margin-bottom: 24px; }
.cta-actions .btn-primary { background: white; color: var(--red); }
.cta-actions .btn-primary:hover { background: rgba(255,255,255,0.9); }
.cta-wechat-hint {
  display: flex; align-items: center; justify-content: center; gap: 8px;
  font-size: 13px; color: rgba(255,255,255,0.6);
}

/* === 页脚 === */
.footer { background: #111111; padding: 64px 0 0; }
.footer-top {
  display: flex; align-items: center; gap: 20px;
  margin-bottom: 40px; padding-bottom: 32px;
  border-bottom: 1px solid rgba(255,255,255,0.08);
}
.footer-logo { height: 32px; width: auto; filter: brightness(0) invert(1); transition: height 0.3s ease; }
.footer-slogan { font-size: 14px; color: rgba(255,255,255,0.5); }
/* 四列导航网格：核心业务 / 品牌矩阵 / 关于我们 / 联系我们 */
.footer-nav-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 32px;
  margin-bottom: 48px;
}
.footer-nav h4 { font-size: 14px; font-weight: 700; color: rgba(255,255,255,0.8); margin-bottom: 16px; }
.footer-nav a {
  display: block; font-size: 13px; color: rgba(255,255,255,0.4);
  margin-bottom: 10px; transition: var(--transition);
}
.footer-nav a:hover { color: rgba(255,255,255,0.9); }
.footer-contact h4 { font-size: 14px; font-weight: 700; color: rgba(255,255,255,0.8); margin-bottom: 16px; }
.footer-contact p { font-size: 13px; color: rgba(255,255,255,0.4); margin-bottom: 10px; }
.footer-contact a { color: rgba(255,255,255,0.4); transition: var(--transition); }
.footer-contact a:hover { color: rgba(255,255,255,0.9); }
.qr-placeholder { margin-top: 16px; width: 100px; height: 120px; overflow: visible; }
.qr-box {
  width: 100px; height: 120px; background: rgba(255,255,255,0.05);
  border: 1px solid rgba(255,255,255,0.1); border-radius: 8px;
  display: flex; flex-direction: column; align-items: center; justify-content: center;
  gap: 6px; font-size: 11px; color: rgba(255,255,255,0.3); padding: 10px;
}
.qr-box img { max-width: 100%; flex: 1; }
.qr-box span { flex-shrink: 0; }
.footer-bottom {
  border-top: 1px solid rgba(255,255,255,0.08); padding: 20px 0;
  display: flex; justify-content: space-between; align-items: center;
  font-size: 12px; color: rgba(255,255,255,0.3);
}
.footer-bottom a { color: rgba(255,255,255,0.4); }
.footer-bottom a:hover { color: rgba(255,255,255,0.7); }

/* ============================================
   关于我们页
   ============================================ */
.page-hero {
  padding: calc(var(--nav-height) + 60px) 0 60px;
  background: var(--primary);
  text-align: center;
}
.page-hero-tag { font-size: 12px; color: var(--red); letter-spacing: 0.15em; margin-bottom: 12px; display: block; font-weight: 600; }
.page-hero h1 { font-size: clamp(32px, 5vw, 56px); font-weight: 900; color: white; margin-bottom: 16px; }
.page-hero p { font-size: 16px; color: rgba(255,255,255,0.55); max-width: 600px; margin: 0 auto; line-height: 1.8; }

.about-intro { display: grid; grid-template-columns: 1fr 1fr; gap: 64px; align-items: center; }
.about-intro-text h2 { font-size: 32px; font-weight: 800; margin-bottom: 16px; }
.about-intro-text p { font-size: 15px; color: var(--text-light); line-height: 1.9; margin-bottom: 16px; }
.about-intro-visual { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.about-stat {
  background: var(--gray-100); border-radius: var(--radius-lg);
  padding: 28px 20px; text-align: center;
}
.about-stat-num { font-size: 36px; font-weight: 900; color: var(--red); display: block; }
.about-stat-label { font-size: 13px; color: var(--text-light); margin-top: 4px; }

.team-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.team-card {
  background: white; border: 1px solid var(--gray-200); border-radius: var(--radius-lg);
  padding: 32px 24px; text-align: center; transition: var(--transition);
}
.team-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-lg); }
.team-avatar {
  width: 80px; height: 80px; border-radius: 50%; background: var(--gray-200);
  margin: 0 auto 16px; display: flex; align-items: center; justify-content: center;
  font-size: 28px; color: var(--gray-500);
  overflow: hidden;
}
.team-card h3 { font-size: 18px; font-weight: 700; margin-bottom: 4px; }
.team-card .team-title { font-size: 13px; color: var(--red); margin-bottom: 12px; }
.team-card p { font-size: 13px; color: var(--text-light); line-height: 1.7; }

/* ============================================
   业务详情页
   ============================================ */
.services-detail-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 32px; }
.service-detail-card {
  background: var(--gray-100); border-radius: var(--radius-lg); padding: 36px;
  transition: var(--transition);
}
.service-detail-card:hover { background: white; box-shadow: var(--shadow-lg); }
.service-detail-card h3 { font-size: 20px; font-weight: 800; margin-bottom: 12px; }
.service-detail-card p { font-size: 14px; color: var(--text-light); line-height: 1.8; margin-bottom: 20px; }
.service-features { display: flex; flex-direction: column; gap: 8px; }
.service-features li {
  font-size: 14px; color: var(--text); padding-left: 20px; position: relative;
}
.service-features li::before {
  content: '✓'; position: absolute; left: 0; color: var(--red); font-weight: 700;
}

/* 风险六大领域 */
.risk-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.risk-item {
  background: var(--primary); color: white; border-radius: var(--radius-lg);
  padding: 28px 24px; transition: var(--transition);
  border: 1px solid rgba(255,255,255,0.05);
}
.risk-item:hover { background: #2a0a0a; border-color: rgba(196,30,30,0.3); }
.risk-item h3 { font-size: 16px; font-weight: 700; margin-bottom: 8px; color: white; }
.risk-item p { font-size: 13px; color: rgba(255,255,255,0.55); line-height: 1.6; }
.risk-item .risk-icon { font-size: 28px; margin-bottom: 12px; }

/* 课程体系 */
.courses-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.course-card {
  background: white; border: 1px solid var(--gray-200); border-radius: var(--radius-lg);
  padding: 28px 24px; transition: var(--transition);
}
.course-card:hover { border-color: var(--red); box-shadow: 0 8px 32px rgba(196,30,30,0.1); }
.course-card h3 { font-size: 16px; font-weight: 700; margin-bottom: 8px; color: var(--primary); }
.course-card p { font-size: 13px; color: var(--text-light); line-height: 1.6; }

/* ============================================
   高廪智库页
   ============================================ */
.gaolin-hero {
  background: linear-gradient(135deg, #0d0d0d 0%, #1a1a1a 60%, #200808 100%);
  padding: calc(var(--nav-height) + 60px) 0 60px; text-align: center;
  position: relative; overflow: hidden;
}
.gaolin-hero::before {
  content: '高廪智库'; position: absolute; left: 50%; top: 50%; transform: translate(-50%, -50%);
  font-size: 200px; font-weight: 900; color: rgba(255,255,255,0.02);
  white-space: nowrap; pointer-events: none;
}
.membership-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.membership-card {
  border-radius: var(--radius-lg); padding: 36px 28px; position: relative; overflow: hidden;
  transition: var(--transition);
}
.membership-card.vip { background: linear-gradient(135deg, #1a0a0a, #2d1010); border: 1px solid rgba(196,30,30,0.3); color: white; }
.membership-card.normal { background: var(--gray-100); border: 1px solid var(--gray-200); }
.membership-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-lg); }
.membership-level { font-size: 12px; letter-spacing: 0.1em; margin-bottom: 12px; display: block; }
.membership-card.vip .membership-level { color: #ff8080; }
.membership-card.normal .membership-level { color: var(--red); }
.membership-card h3 { font-size: 24px; font-weight: 800; margin-bottom: 4px; }
.membership-card.vip h3 { color: white; }
.membership-price { font-size: 28px; font-weight: 900; margin: 16px 0; }
.membership-card.vip .membership-price { color: var(--red); }
.membership-card.normal .membership-price { color: var(--primary); }
.membership-features { display: flex; flex-direction: column; gap: 10px; margin-bottom: 24px; }
.membership-features li { font-size: 13px; padding-left: 16px; position: relative; }
.membership-card.vip .membership-features li { color: rgba(255,255,255,0.7); }
.membership-card.normal .membership-features li { color: var(--text-light); }
.membership-features li::before {
  content: ''; position: absolute; left: 0; top: 50%; transform: translateY(-50%);
  width: 6px; height: 6px; background: var(--red); border-radius: 50%;
}

/* ============================================
   联系页
   ============================================ */
.contact-layout { display: grid; grid-template-columns: 1fr auto 1.2fr; gap: 60px; align-items: start; }
.contact-info h2 { font-size: 32px; font-weight: 800; margin-bottom: 24px; }
.contact-item { display: flex; gap: 16px; margin-bottom: 24px; align-items: flex-start; }
.contact-item-icon {
  width: 44px; height: 44px; background: rgba(196,30,30,0.1);
  border-radius: 10px; display: flex; align-items: center; justify-content: center;
  flex-shrink: 0; font-size: 20px;
}
.contact-item-text h4 { font-size: 14px; font-weight: 600; margin-bottom: 4px; }
.contact-item-text p { font-size: 14px; color: var(--text-light); }
.contact-qrcode { position: sticky; top: calc(var(--nav-height) + 40px); }
.contact-form { background: var(--gray-100); border-radius: var(--radius-lg); padding: 40px; }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.form-group { margin-bottom: 20px; }
.form-group label { display: block; font-size: 14px; font-weight: 600; margin-bottom: 8px; }
.form-group input, .form-group textarea, .form-group select {
  width: 100%; padding: 12px 16px; border: 1.5px solid var(--gray-300);
  border-radius: var(--radius); font-size: 14px; font-family: var(--font);
  background: white; transition: var(--transition); color: var(--text);
}
.form-group input:focus, .form-group textarea:focus, .form-group select:focus {
  outline: none; border-color: var(--red); box-shadow: 0 0 0 3px rgba(196,30,30,0.1);
}
.form-group textarea { height: 120px; resize: vertical; }

/* ============================================
   响应式 - 平板
   ============================================ */
@media (max-width: 1024px) {
  .stats-grid { grid-template-columns: repeat(2, 1fr); }
  .stat-item:nth-child(2) { border-right: none; }
  .services-layout { grid-template-columns: 180px 1fr; gap: 24px; }
  .brands-grid { grid-template-columns: 1fr 1fr; }
  .brands-grid-2 { grid-template-columns: 1fr 1fr; }
  .brand-shiguang { grid-column: span 2; }
  .resources-grid { grid-template-columns: repeat(2, 1fr); }
  .clients-grid { grid-template-columns: repeat(3, 1fr); }
  .events-cities { grid-template-columns: repeat(5, 1fr); }
  .footer-nav-grid { grid-template-columns: repeat(4, 1fr); gap: 24px; }
  .about-intro { grid-template-columns: 1fr; gap: 40px; }
  .founder-layout { grid-template-columns: 280px 1fr; gap: 40px; }
  .csr-layout { grid-template-columns: 1fr; gap: 40px; }
  .membership-grid { grid-template-columns: 1fr; gap: 20px; }
  .team-grid { grid-template-columns: 1fr 1fr; }
  .contact-layout { grid-template-columns: 1fr 1.2fr; }
  .contact-qrcode { display: none; }
  .services-detail-grid { grid-template-columns: 1fr; }
  .risk-grid { grid-template-columns: 1fr 1fr; }
  .courses-grid { grid-template-columns: 1fr 1fr; }
  /* 使命愿景 inline grid */
  .mission-grid { grid-template-columns: 1fr !important; }
}

/* ============================================
   响应式 - 手机
   ============================================ */
@media (max-width: 768px) {
  :root { --nav-height: 60px; }
  .pc-only { display: none; }
  .section { padding: 48px 0; }
  .container { padding: 0 16px; }

  /* 导航 */
  .nav-toggle { display: flex; }
  .logo-img { height: 32px; }
  .nav-menu {
    position: fixed; top: var(--nav-height); left: 0; right: 0;
    background: rgba(26,26,26,0.98); backdrop-filter: blur(20px);
    flex-direction: column; padding: 16px;
    max-height: 0; overflow: hidden; transition: max-height 0.35s ease, opacity 0.35s;
    opacity: 0; gap: 2px; border-bottom: 1px solid rgba(255,255,255,0.08);
  }
  .nav-menu.open { max-height: 600px; opacity: 1; }
  .nav-link { width: 100%; justify-content: center; padding: 12px 16px; font-size: 15px; }
  
  /* 浅色状态下移动菜单的背景 */
  .navbar.scrolled .nav-menu {
    background: rgba(255,255,255,0.98) !important;
    backdrop-filter: blur(20px);
    border-bottom: 1px solid rgba(0,0,0,0.05);
  }

  /* Hero */
  .hero { min-height: 100svh; padding: calc(var(--nav-height) + 32px) 16px 80px; }
  .hero-title-cn { font-size: clamp(40px, 12vw, 60px); }
  .hero-desc { font-size: 14px; }
  .hero-actions { flex-direction: column; align-items: center; gap: 12px; }
  .hero-actions .btn { width: 100%; max-width: 280px; justify-content: center; }

  /* Stats */
  .stats-grid { grid-template-columns: repeat(2, 1fr); }
  .stat-item { padding: 24px 12px; }
  .stat-item:nth-child(even) { border-right: none; }
  .stat-item:nth-child(n+3) { border-top: 1px solid rgba(255,255,255,0.08); }

  /* 业务 */
  .services-layout { grid-template-columns: 1fr; }
  .service-core { aspect-ratio: auto; padding: 28px; min-height: 120px; }

  /* 品牌矩阵 */
  .brands-grid,
  .brands-grid-2 { grid-template-columns: 1fr; gap: 16px; }
  .brand-shiguang { grid-column: span 1; }
  .brand-card-content { padding: 20px 16px; }
  .brand-card h3 { font-size: 18px; }
  .brand-desc { font-size: 13px; }
  .brand-features li { font-size: 12px; }

  /* 创始人 */
  .founder-layout { grid-template-columns: 1fr; gap: 24px; }
  .founder-image-wrap { aspect-ratio: 3/4; max-height: 320px; max-width: 240px; margin: 0 auto; border-radius: 12px; }
  .founder-name { font-size: 28px; line-height: 1.2; }
  .founder-title { font-size: 14px; }
  .founder-intro { font-size: 14px; line-height: 1.6; }

  /* 资源优势 */
  .resources-grid { grid-template-columns: 1fr 1fr; gap: 12px; }
  .resource-item { padding: 20px 12px; border-radius: 12px; }
  .resource-item h4 { font-size: 14px; margin-bottom: 6px; }
  .resource-item p { font-size: 12px; line-height: 1.5; }

  /* 客户 */
  .clients-grid { grid-template-columns: repeat(2, 1fr); }
  .client-more { grid-column: span 2; }

  /* 活动 */
  .event-main {
    grid-template-columns: 1fr; gap: 12px; padding: 20px 16px;
  }
  .event-badge { top: 12px; right: 12px; font-size: 10px; padding: 2px 8px; }
  .events-cities { grid-template-columns: repeat(3, 1fr); gap: 6px; }
  .city-event { padding: 10px 4px; border-radius: 8px; }
  .city-month { font-size: 14px; font-weight: 600; }
  .city-name { font-size: 12px; }
  .event-title { font-size: 16px; margin-bottom: 8px; }
  .event-desc { font-size: 13px; }

  /* 公益 */
  .csr-layout { grid-template-columns: 1fr; gap: 32px; }
  .csr-pillars { grid-template-columns: repeat(2, 1fr); }
  .csr-visual { padding: 32px 24px; }
  .csr-quote blockquote { font-size: 15px; }

  /* 使命愿景 inline grid（about页） */
  .mission-grid { grid-template-columns: 1fr !important; gap: 16px !important; }

  /* 页脚 */
  .footer { padding: 48px 0 0; }
  .footer-top { flex-direction: column; align-items: flex-start; gap: 8px; margin-bottom: 28px; padding-bottom: 24px; }
  .footer-logo { height: 28px; }
  /* 窄屏：第一行三列，第二行联系我们 */
  .footer-nav-grid {
    grid-template-columns: repeat(3, 1fr);
    gap: 16px;
    margin-bottom: 28px;
  }
  .footer-contact { grid-column: span 3; padding-top: 20px; border-top: 1px solid rgba(255,255,255,0.08); }
  .footer-bottom { flex-direction: column; gap: 8px; text-align: center; padding: 16px 0; }

  /* 关于 */
  .about-intro { grid-template-columns: 1fr; gap: 32px; }
  .team-grid { grid-template-columns: 1fr; }
  .about-intro-visual { grid-template-columns: 1fr 1fr; }

  /* 风险/课程 */
  .risk-grid { grid-template-columns: 1fr; }
  .courses-grid { grid-template-columns: 1fr; }

  /* 联系表单 */
  .contact-layout { grid-template-columns: 1fr; gap: 32px; }
  .form-row { grid-template-columns: 1fr; }
  .contact-form { padding: 24px 20px; }

  /* 高廪会员 */
  .membership-grid { grid-template-columns: 1fr; }

  /* 章节标题 */
  .section-header { margin-bottom: 36px; }
  .section-title { font-size: clamp(22px, 6vw, 32px); }
  .section-desc { font-size: 14px; }

  /* CTA */
  .cta-section { padding: 56px 0; }
  .cta-actions { flex-direction: column; align-items: center; }
  .cta-actions .btn { width: 100%; max-width: 280px; justify-content: center; }
}

@media (max-width: 480px) {
  .container { padding: 0 12px; }
  .hero-title-cn { font-size: 32px; }
  .hero-desc { font-size: 13px; }
  .stat-num { font-size: 24px; }
  .events-cities { grid-template-columns: repeat(3, 1fr); gap: 4px; }
  .city-event { padding: 8px 2px; }
  .city-month { font-size: 13px; }
  .city-name { font-size: 10px; }
  .resources-grid { grid-template-columns: 1fr; }
  .resource-item { padding: 16px 12px; }
  .clients-grid { grid-template-columns: 1fr 1fr; }
  .client-more { grid-column: span 2; }
  .footer-nav-grid { grid-template-columns: repeat(3, 1fr); gap: 12px; margin-bottom: 20px; }
  .footer-contact { grid-column: span 3; }
  .footer-logo { height: 24px; }
  .footer-bottom { padding: 12px 0; font-size: 12px; }
  .brands-grid-2 { grid-template-columns: 1fr; }
  .brand-card-content { padding: 16px 12px; }
  .service-card { padding: 16px 16px; }
  .service-card-num { font-size: 32px; }
  /* 页头 */
  .page-hero { padding: calc(var(--nav-height) + 32px) 0 32px; }
  .page-hero h1 { font-size: 24px; }
  /* 导航链接 */
  .nav-link { padding: 10px 12px; font-size: 14px; }
}

/* ============================================
   通用响应式 Grid 辅助类
   ============================================ */
/* 给有内联 grid-template-columns 的容器加对应 class，用 !important 覆盖内联样式 */
.rg-2col { }       /* 默认两列，手机变1列 */
.rg-3col { }       /* 默认三列，手机变1列 */
.rg-4col { }       /* 默认四列，平板变2列，手机变1列 */
.rg-5col { }       /* 默认五列，平板变3列，手机变2列 */
.rg-half { }       /* 默认1fr 1fr，手机变1列 */
.rg-event-row { }  /* 活动行 grid，手机变1列 */
.rg-3col-core { }  /* 核心业务特殊布局：左文字-中图标-右文字 */
.rg-schedule-row { } /* 日程表格行：时间-内容-操作 */

@media (max-width: 1024px) {
  .rg-4col { grid-template-columns: repeat(2, 1fr) !important; }
  .rg-5col { grid-template-columns: repeat(3, 1fr) !important; }
  .rg-3col-to-1 { grid-template-columns: 1fr !important; }
}

@media (max-width: 768px) {
  .rg-2col   { grid-template-columns: 1fr !important; }
  .rg-3col   { grid-template-columns: 1fr !important; }
  .rg-4col   { grid-template-columns: 1fr 1fr !important; }
  .rg-5col   { grid-template-columns: 1fr !important; }
  /* 服务流程窄屏：单列，横线变竖线 */
  .rg-5col.process-flow > div {
    text-align: center !important;
    padding: 20px 0 !important;
    position: relative !important;
  }
  .rg-5col.process-flow .process-line-h { display: none !important; }
  /* 窄屏竖线：用容器伪元素，贯穿整个容器 */
  .rg-5col.process-flow::before {
    content: '' !important;
    position: absolute !important;
    top: 0 !important;
    bottom: 0 !important;
    left: 50% !important;
    width: 2px !important;
    background: var(--red) !important;
    transform: translateX(-50%) !important;
    z-index: 0 !important;
  }
  /* 竖线只穿过圆圈区域，文字区域用背景遮住 */
  .rg-5col.process-flow > div {
    text-align: center !important;
    padding: 20px 0 !important;
    position: relative !important;
    z-index: 1 !important;
  }
  /* 标题和描述上下两行，白色背景遮住红线 */
  .rg-5col.process-flow > div > h4,
  .rg-5col.process-flow > div > p {
    position: relative !important;
    z-index: 2 !important;
    background: white !important;
    display: block !important;
    padding: 0 12px !important;
    margin-left: auto !important;
    margin-right: auto !important;
    width: fit-content !important;
  }
  /* 圆圈本身遮住红线 */
  .rg-5col.process-flow > div > div:first-child {
    position: relative !important;
    z-index: 2 !important;
  }
  .rg-half   { grid-template-columns: 1fr !important; gap: 32px !important; }
  .rg-event-row { grid-template-columns: 1fr !important; gap: 16px !important; }
  /* 核心业务特殊布局：手机变垂直，红色圆圈居中 */
  .rg-3col-core { grid-template-columns: 1fr !important; gap: 24px !important; text-align: center !important; }
  .rg-3col-core > div:nth-child(2) { margin: 0 auto !important; }
  /* 日程表格行：手机变垂直 */
  .rg-schedule-row { grid-template-columns: 1fr !important; gap: 8px !important; padding: 12px 0 !important; }
  .rg-schedule-row > div:first-child { font-weight: 700 !important; color: var(--red) !important; }
  /* 活动行里隐藏日期块对齐 */
  .rg-gaolin-plan { grid-template-columns: 1fr !important; gap: 24px !important; }
  /* 表单统计行 */
  .rg-stats-row { grid-template-columns: 1fr 1fr !important; }
}

@media (max-width: 480px) {
  .rg-4col { grid-template-columns: 1fr !important; }
  .rg-5col { grid-template-columns: 1fr !important; }
  .rg-stats-row { grid-template-columns: 1fr !important; }
  .rg-3col-core { gap: 20px !important; }
}

/* ============================================
   线条图标系统
   ============================================ */
.icon-stroke {
  stroke: currentColor;
  stroke-width: 2;
  fill: none;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.icon-fill {
  fill: currentColor;
  stroke: none;
}

.icon-small {
  width: 16px;
  height: 16px;
}

.icon-medium {
  width: 24px;
  height: 24px;
}

.icon-large {
  width: 40px;
  height: 40px;
}

.icon-xlarge {
  width: 60px;
  height: 60px;
}

.icon-xxlarge {
  width: 80px;
  height: 80px;
}

/* 特殊图标容器 */
.icon-container {
  display: inline-flex;
  align-items: center;
  justify-content: center;
}

/* ============================================
   动画
   ============================================ */
@keyframes fadeInUp {
  from { opacity: 0; transform: translateY(20px); }
  to { opacity: 1; transform: translateY(0); }
}
.animate-in { animation: fadeInUp 0.6s ease forwards; }
.animate-in-delay-1 { animation-delay: 0.1s; opacity: 0; animation-fill-mode: forwards; }
.animate-in-delay-2 { animation-delay: 0.2s; opacity: 0; animation-fill-mode: forwards; }
.animate-in-delay-3 { animation-delay: 0.3s; opacity: 0; animation-fill-mode: forwards; }

/* 滚动显示 */
.reveal { opacity: 0; transform: translateY(30px); transition: opacity 0.6s ease, transform 0.6s ease; }
.reveal.visible { opacity: 1; transform: translateY(0); }

/* ============================================
   页面加载动画
   ============================================ */
.page-loader {
  position: fixed; inset: 0; z-index: 9999;
  background: var(--primary);
  display: flex; align-items: center; justify-content: center;
  transition: opacity 0.5s ease, visibility 0.5s ease;
}
.page-loader.loaded {
  opacity: 0; visibility: hidden; pointer-events: none;
}
.loader-logo {
  font-size: 28px; font-weight: 900; color: white;
  letter-spacing: 0.05em;
  animation: loaderPulse 1.2s ease-in-out infinite;
}
.loader-logo span { color: var(--red); }
@keyframes loaderPulse {
  0%, 100% { opacity: 0.5; transform: scale(0.98); }
  50% { opacity: 1; transform: scale(1); }
}

/* ============================================
   滚动进度条
   ============================================ */
.scroll-progress {
  position: fixed; top: 0; left: 0; height: 3px; z-index: 1001;
  background: linear-gradient(90deg, var(--red), #ff6b6b);
  width: 0%; transition: width 0.1s linear;
  box-shadow: 0 0 8px rgba(196,30,30,0.4);
}

/* ============================================
   回到顶部按钮
   ============================================ */
.back-to-top {
  position: fixed; bottom: 32px; right: 32px; z-index: 900;
  width: 48px; height: 48px; border-radius: 50%;
  background: var(--primary); color: white;
  display: flex; align-items: center; justify-content: center;
  cursor: pointer; border: none; padding: 0;
  opacity: 0; visibility: hidden; transform: translateY(20px);
  transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
  box-shadow: 0 4px 16px rgba(0,0,0,0.2);
}
.back-to-top.visible {
  opacity: 1; visibility: visible; transform: translateY(0);
}
.back-to-top:hover {
  background: var(--red); transform: translateY(-4px);
  box-shadow: 0 8px 24px rgba(196,30,30,0.4);
}
.back-to-top svg { width: 20px; height: 20px; }

/* ============================================
   Hero增强动画
   ============================================ */
.hero-content {
  animation: heroFadeIn 1s ease forwards;
  opacity: 0;
}
@keyframes heroFadeIn {
  from { opacity: 0; transform: translateY(40px); }
  to { opacity: 1; transform: translateY(0); }
}

.hero-badge { animation: heroFadeIn 0.8s ease 0.2s forwards; opacity: 0; }
.hero-title { animation: heroFadeIn 0.8s ease 0.4s forwards; opacity: 0; }
.hero-desc { animation: heroFadeIn 0.8s ease 0.6s forwards; opacity: 0; }
.hero-actions { animation: heroFadeIn 0.8s ease 0.8s forwards; opacity: 0; }

/* Hero背景浮动光效 */
.hero-bg::after {
  content: '';
  position: absolute;
  width: 600px; height: 600px;
  background: radial-gradient(circle, rgba(196,30,30,0.08), transparent 60%);
  top: 20%; left: 50%;
  transform: translateX(-50%);
  animation: heroGlow 6s ease-in-out infinite;
}
@keyframes heroGlow {
  0%, 100% { transform: translateX(-50%) scale(1); opacity: 0.6; }
  50% { transform: translateX(-50%) scale(1.3); opacity: 1; }
}

/* ============================================
   卡片增强hover效果
   ============================================ */
.service-card::after {
  content: '';
  position: absolute; top: 0; left: 0;
  width: 100%; height: 100%;
  background: linear-gradient(135deg, rgba(196,30,30,0.03), transparent);
  opacity: 0; transition: opacity 0.4s ease;
  pointer-events: none;
}
.service-card:hover::after { opacity: 1; }

.resource-item::before {
  content: '';
  position: absolute; bottom: 0; left: 0; right: 0;
  height: 3px; background: linear-gradient(90deg, var(--red), transparent);
  transform: scaleX(0); transform-origin: left;
  transition: transform 0.4s ease;
}
.resource-item:hover::before { transform: scaleX(1); }

.brand-card {
  transition: transform 0.4s cubic-bezier(0.4, 0, 0.2, 1), box-shadow 0.4s ease;
}
.brand-card:hover {
  transform: translateY(-8px) scale(1.01);
  box-shadow: var(--shadow-lg), 0 0 0 1px rgba(196,30,30,0.1);
}

.city-event {
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  cursor: default;
}
.city-event:hover {
  transform: translateY(-4px);
  border-color: var(--red);
  background: rgba(196,30,30,0.02);
}

/* ============================================
   按钮增强
   ============================================ */
.btn {
  position: relative; overflow: hidden;
}
.btn::before {
  content: '';
  position: absolute; top: 50%; left: 50%;
  width: 0; height: 0;
  background: rgba(255,255,255,0.15);
  border-radius: 50%;
  transform: translate(-50%, -50%);
  transition: width 0.6s ease, height 0.6s ease;
}
.btn:active::before {
  width: 300px; height: 300px;
}

/* ============================================
   导航增强
   ============================================ */
.nav-link {
  position: relative;
}
.nav-link::after {
  content: '';
  position: absolute; bottom: 2px; left: 50%;
  width: 0; height: 2px;
  background: var(--red);
  transition: all 0.3s ease;
  transform: translateX(-50%);
}
.nav-link:hover::after, .nav-link.active::after {
  width: 60%;
}
.navbar.scrolled .nav-link::after { background: var(--red); }

/* ============================================
   统计数字增强
   ============================================ */
.stat-item {
  position: relative;
  transition: background 0.4s ease;
}
.stat-item:hover {
  background: rgba(196,30,30,0.08);
}

/* ============================================
   使命愿景卡片增强
   ============================================ */
.mission-card {
  transition: transform 0.4s ease, box-shadow 0.4s ease;
}
.mission-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-lg);
}

/* ============================================
   页面Hero增强
   ============================================ */
.page-hero {
  position: relative;
  overflow: hidden;
}
.page-hero::before {
  content: '';
  position: absolute; inset: 0;
  background: radial-gradient(ellipse at 30% 50%, rgba(196,30,30,0.15), transparent 60%);
  animation: heroGlow 8s ease-in-out infinite;
}

/* ============================================
   Footer增强
   ============================================ */
.footer-nav a {
  position: relative;
  padding-left: 0;
  transition: all 0.3s ease;
}
.footer-nav a::before {
  content: '→';
  position: absolute; left: -16px;
  opacity: 0; transform: translateX(-8px);
  transition: all 0.3s ease;
  color: var(--red);
}
.footer-nav a:hover {
  padding-left: 16px;
}
.footer-nav a:hover::before {
  opacity: 1; transform: translateX(0);
}

/* ============================================
   选区文字颜色
   ============================================ */
::selection {
  background: rgba(196,30,30,0.2);
  color: var(--primary);
}

/* ============================================
   通用内容卡片组件（替代内联样式）
   ============================================ */
.content-card {
  background: white;
  border: 1px solid var(--gray-200);
  border-radius: 16px;
  padding: 36px 28px;
  transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}
.content-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
  border-color: transparent;
}
.content-card-dark {
  background: var(--primary);
  color: white;
  border-radius: 20px;
  padding: 40px;
  position: relative;
  overflow: hidden;
}
.content-card-dark::before {
  content: '';
  position: absolute; inset: 0;
  background: radial-gradient(circle at 50% 50%, rgba(196,30,30,0.1), transparent 60%);
}
.content-card-dark > * { position: relative; z-index: 1; }

/* 使命愿景卡片 */
.mission-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
.mission-card {
  background: white;
  border-radius: 16px;
  padding: 36px 28px;
  text-align: center;
  border: 1px solid var(--gray-200);
  transition: all 0.4s ease;
}
.mission-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-lg);
}
.mission-card-dark {
  background: linear-gradient(135deg, #C41E1E 0%, #a01818 100%);
  border-radius: 16px;
  padding: 36px 28px;
  text-align: center;
  position: relative;
  overflow: hidden;
}
.mission-card-dark::before {
  content: '';
  position: absolute;
  top: -30%;
  right: -30%;
  width: 120px;
  height: 120px;
  background: rgba(255,255,255,0.08);
  border-radius: 50%;
}
.mission-card h3,
.mission-card p {
  font-size: 14px;
  color: var(--text-light);
  line-height: 1.8;
}
.mission-card-dark p {
  font-size: 14px;
  line-height: 1.8;
  color: rgba(255,255,255,0.92) !important;
  letter-spacing: 0.5px;
}
.mission-card h3 {
  font-size: 20px;
  font-weight: 800;
  margin-bottom: 12px;
  color: var(--primary);
}
.mission-card-dark h3 {
  font-size: 20px;
  font-weight: 800;
  margin-bottom: 12px;
  color: white !important;
}
.mission-icon {
  font-size: 40px;
  margin-bottom: 16px;
}
.mission-card-dark .mission-icon {
  color: white;
  filter: drop-shadow(0 0 8px rgba(255,255,255,0.3));
}
@media (min-width: 769px) {
  .mission-card-dark {
    transform: translateY(-8px);
  }
}

/* 培训形式网格 */
.training-forms-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  text-align: center;
  background: var(--gray-100);
  border-radius: 16px;
  padding: 32px;
  margin-top: 32px;
}
.training-form-item .form-icon {
  font-size: 13px;
  color: var(--text-light);
  margin-bottom: 8px;
}
.training-form-item p {
  font-size: 13px;
  color: var(--text-light);
}

/* 培训类型卡片（精品实战培训子类） */
.training-types-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  margin-top: 32px;
}
.training-type-card {
  background: white;
  border-radius: 16px;
  padding: 32px 24px;
  text-align: center;
  border: 1px solid var(--gray-200);
  transition: transform 0.3s ease, box-shadow 0.3s ease;
  position: relative;
  overflow: hidden;
}
.training-type-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
}
.training-type-icon {
  width: 56px;
  height: 56px;
  border-radius: 14px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 20px;
}
.training-type-card h4 {
  font-size: 18px;
  font-weight: 700;
  color: var(--primary);
  margin-bottom: 12px;
}
.training-type-card p {
  font-size: 14px;
  color: var(--text-light);
  line-height: 1.7;
  margin-bottom: 16px;
}
.training-type-tag {
  display: inline-block;
  font-size: 12px;
  font-weight: 600;
  padding: 4px 14px;
  border-radius: 20px;
  letter-spacing: 0.5px;
}

/* 企业定制内训 - 品牌红 */
.training-type-card--corporate .training-type-icon {
  background: linear-gradient(135deg, #FFF1F0, #FFE4E1);
  color: var(--red);
}
.training-type-card--corporate .training-type-tag {
  background: rgba(196,30,30,0.08);
  color: var(--red);
}

/* 精品密训课程 - 深蓝 */
.training-type-card--intensive .training-type-icon {
  background: linear-gradient(135deg, #EEF2FF, #E0E7FF);
  color: #4338CA;
}
.training-type-card--intensive h4 {
  color: #4338CA;
}
.training-type-card--intensive .training-type-tag {
  background: rgba(67,56,202,0.08);
  color: #4338CA;
}

/* MBA/EMBA公开课 - 深绿 */
.training-type-card--mba .training-type-icon {
  background: linear-gradient(135deg, #ECFDF5, #D1FAE5);
  color: #047857;
}
.training-type-card--mba h4 {
  color: #047857;
}
.training-type-card--mba .training-type-tag {
  background: rgba(4,120,87,0.08);
  color: #047857;
}

@media (max-width: 992px) {
  .training-types-grid { grid-template-columns: 1fr !important; }
}
@media (max-width: 768px) {
  .training-types-grid { grid-template-columns: 1fr !important; }
}

/* 快速入口网格 */
.quick-access-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
}
.quick-access-card {
  background: white;
  border-radius: 16px;
  padding: 28px;
  text-align: center;
  border: 1px solid var(--gray-200);
  text-decoration: none;
  transition: all 0.3s;
  display: block;
}
.quick-access-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
  border-color: transparent;
}
.quick-access-card h3 {
  font-size: 16px;
  font-weight: 700;
  margin-bottom: 8px;
  color: var(--text);
}
.quick-access-card p {
  font-size: 13px;
  color: var(--text-light);
}
.quick-access-icon {
  font-size: 40px;
  margin-bottom: 12px;
}

/* 公益四列网格 */
.csr-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
}
.csr-item {
  background: white;
  border-radius: 16px;
  padding: 28px;
  text-align: center;
  transition: all 0.3s ease;
}
.csr-item:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
}
.csr-item h3 {
  font-size: 18px;
  font-weight: 800;
  margin-bottom: 8px;
}
.csr-item p {
  font-size: 13px;
  color: var(--text-light);
  line-height: 1.7;
}
.csr-icon {
  font-size: 48px;
  margin-bottom: 16px;
}

/* CRO菜单说明列表 */
.menu-item {
  display: flex;
  gap: 12px;
  align-items: center;
  padding: 14px 16px;
  background: var(--gray-100);
  border-radius: 10px;
  transition: background 0.3s ease;
}
.menu-item:hover {
  background: var(--gray-200);
}
.menu-item-icon {
  font-size: 20px;
  flex-shrink: 0;
}
.menu-item-title {
  font-size: 14px;
  font-weight: 600;
}
.menu-item-desc {
  font-size: 12px;
  color: var(--text-light);
}

/* 案例卡片 */
.case-card {
  background: white;
  border: 1px solid var(--gray-200);
  border-radius: 16px;
  overflow: hidden;
  transition: all 0.3s;
}
.case-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-lg);
}
.case-card-tag {
  font-size: 12px;
  background: rgba(196,30,30,0.1);
  color: var(--red);
  padding: 3px 10px;
  border-radius: 4px;
  display: inline-block;
}
.case-card-tag-secondary {
  font-size: 12px;
  background: var(--gray-100);
  color: var(--text-light);
  padding: 3px 10px;
  border-radius: 4px;
  display: inline-block;
}

/* 响应式补充 */
@media (max-width: 1024px) {
  .mission-grid { grid-template-columns: 1fr !important; }
  .training-forms-grid { grid-template-columns: 1fr !important; }
  .quick-access-grid { grid-template-columns: 1fr 1fr !important; }
  .csr-grid { grid-template-columns: 1fr 1fr !important; }
}
@media (max-width: 768px) {
  .mission-grid { grid-template-columns: 1fr !important; }
  .training-forms-grid { grid-template-columns: 1fr !important; }
  .quick-access-grid { grid-template-columns: 1fr 1fr !important; }
  .csr-grid { grid-template-columns: 1fr 1fr !important; }
}
@media (max-width: 480px) {
  .quick-access-grid { grid-template-columns: 1fr !important; }
  .csr-grid { grid-template-columns: 1fr !important; }
}

/* ============================================
   响应式 - 回到顶部按钮
   ============================================ */
@media (max-width: 768px) {
  .back-to-top {
    bottom: 20px; right: 20px;
    width: 40px; height: 40px;
  }
  .back-to-top svg { width: 16px; height: 16px; }
  .page-loader .loader-logo { font-size: 22px; }
}

/* ============================================
   平滑增强
   ============================================ */
html {
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* 链接hover下划线动画 */
.footer-slogan {
  transition: color 0.3s ease;
}

/* 案例卡片增强 */
.case-card-banner {
  height: 160px;
  display: flex; align-items: center; justify-content: center;
  position: relative; overflow: hidden;
}
.case-card-banner::after {
  content: '';
  position: absolute; inset: 0;
  background: linear-gradient(to bottom, transparent 60%, rgba(0,0,0,0.1));
  opacity: 0; transition: opacity 0.4s ease;
}
.case-card-banner span {
  position: relative; z-index: 1;
  text-shadow: 0 2px 8px rgba(0,0,0,0.2);
}

/* 表单增强 */
.form-group input:focus, 
.form-group textarea:focus, 
.form-group select:focus {
  border-color: var(--red);
  box-shadow: 0 0 0 3px rgba(196,30,30,0.1), 0 2px 8px rgba(196,30,30,0.05);
}

/* 会员卡片价格增强 */
.membership-card {
  position: relative;
}
.membership-card.vip::after {
  content: '推荐';
  position: absolute; top: 16px; right: -28px;
  background: var(--red); color: white;
  font-size: 11px; font-weight: 700;
  padding: 4px 32px;
  transform: rotate(45deg);
}

/* 议程行hover */
.schedule-row {
  transition: background 0.3s ease;
  border-radius: 8px;
}
.schedule-row:hover {
  background: rgba(196,30,30,0.03);
}

/* ============================================
   SEO/GEO - FAQ交互组件
   ============================================ */

/* FAQ基础样式（contact.html等页面使用） */
.geo-faq-section .faq-list {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

/* 宽屏下FAQ双列布局 */
@media (min-width: 992px) {
  .geo-faq-section .faq-list,
  .faq-list-responsive {
    display: grid !important;
    grid-template-columns: repeat(2, 1fr) !important;
    gap: 16px !important;
  }
  
  .geo-faq-section .faq-item,
  .faq-list-responsive .faq-item {
    height: fit-content;
  }
}

.geo-faq-section .faq-item {
  background: white;
  border: 1px solid var(--gray-300);
  border-radius: 12px;
  padding: 0;
  overflow: hidden;
  transition: box-shadow 0.3s ease, border-color 0.3s ease;
}

.geo-faq-section .faq-item:hover {
  border-color: rgba(196,30,30,0.25);
  box-shadow: 0 4px 16px rgba(196,30,30,0.06);
}

.geo-faq-section .faq-item[open] {
  border-color: rgba(196,30,30,0.3);
  box-shadow: 0 4px 20px rgba(196,30,30,0.08);
}

.geo-faq-section .faq-item summary {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 18px 24px;
  font-weight: 600;
  font-size: 15px;
  color: var(--text);
  cursor: pointer;
  list-style: none;
  user-select: none;
  -webkit-user-select: none;
}

.geo-faq-section .faq-item summary::-webkit-details-marker { display: none; }
.geo-faq-section .faq-item summary::marker { display: none; }

.geo-faq-section .faq-item summary .faq-arrow {
  color: var(--red);
  flex-shrink: 0;
  margin-left: 12px;
  transition: transform 0.3s ease;
}

.geo-faq-section .faq-item[open] summary .faq-arrow {
  transform: rotate(180deg);
}

.geo-faq-section .faq-item > div {
  padding: 0 24px 20px;
  color: var(--text-light);
  font-size: 14px;
  line-height: 1.8;
}

.geo-faq-section .faq-item > div p {
  margin: 0;
}

/* index.html geo-summary-section内的FAQ样式 */
details.faq-item {
  transition: box-shadow 0.3s ease, border-color 0.3s ease;
}
details.faq-item:hover {
  border-color: rgba(196,30,30,0.25) !important;
  box-shadow: 0 4px 16px rgba(196,30,30,0.06);
}
details.faq-item[open] {
  border-color: rgba(196,30,30,0.3) !important;
  box-shadow: 0 4px 20px rgba(196,30,30,0.08);
}
details.faq-item summary {
  user-select: none;
  -webkit-user-select: none;
}
details.faq-item summary::-webkit-details-marker { display: none; }
details.faq-item summary::marker { display: none; }
details.faq-item[open] summary svg {
  transform: rotate(180deg);
  transition: transform 0.3s ease;
}
details.faq-item summary svg {
  transition: transform 0.3s ease;
}

/* GEO 语义摘要区块 */
.geo-summary-section {
  padding: 64px 0;
}
.geo-facts-grid {
  margin-bottom: 32px;
}
.geo-fact {
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}
.geo-fact:hover {
  transform: translateY(-4px);
  box-shadow: 0 8px 24px rgba(196,30,30,0.08);
  border-color: rgba(196,30,30,0.2) !important;
}

/* ============================================
   SEO - 打印媒体优化（方便保存/打印）
   ============================================ */
@media print {
  .navbar, .page-loader, .scroll-progress, .back-to-top,
  .cta-section, .footer { display: none !important; }
  body { font-size: 11pt; color: #000; }
  a { color: #000; text-decoration: none; }
  h1, h2, h3 { color: #000; }
  .section { padding: 20px 0; }
  .container { max-width: 100%; padding: 0 10px; }
}

/* ============================================
   技术SEO - 图片懒加载占位
   ============================================ */
img[loading="lazy"] {
  opacity: 0;
  transition: opacity 0.4s ease;
}
img[loading="lazy"].loaded {
  opacity: 1;
}

/* ============================================
   案例页 - 行业筛选按钮
   ============================================ */
.case-filter-btn {
  display: inline-flex;
  align-items: center;
  padding: 8px 20px;
  border-radius: 50px;
  border: 1.5px solid var(--gray-300);
  background: white;
  color: var(--text-light);
  font-size: 13px;
  font-weight: 500;
  cursor: pointer;
  transition: all 0.22s ease;
  font-family: inherit;
  white-space: nowrap;
}
.case-filter-btn:hover {
  border-color: var(--red);
  color: var(--red);
  background: rgba(196,30,30,0.04);
}
.case-filter-btn.active {
  background: var(--red);
  border-color: var(--red);
  color: white;
  box-shadow: 0 4px 14px rgba(196,30,30,0.25);
}
.case-filter-btn:focus-visible {
  outline: 2px solid var(--red);
  outline-offset: 2px;
}

/* ============================================
   联系页 - 表单辅助文字 & 地址标记
   ============================================ */
.form-hint {
  font-size: 12px;
  color: var(--red);
  margin-top: 4px;
  display: block;
}
/* 电话链接去下划线 */
a[href^="tel:"] {
  text-decoration: none;
  color: inherit;
}
a[href^="tel:"]:hover {
  color: var(--red);
}