/* ============================================================
   Miotage 企业网站样式表
   设计风格: 深色科技感 + 紫色渐变品牌色 + 弹性动画
   ============================================================ */

/* ---------- CSS 变量 ---------- */
:root {
  --color-primary: #667eea;
  --color-primary-dark: #5a67d8;
  --color-secondary: #764ba2;
  --color-accent: #f093fb;
  --color-gradient: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  --color-gradient-reverse: linear-gradient(135deg, #764ba2 0%, #667eea 100%);
  --color-gradient-accent: linear-gradient(135deg, #f093fb 0%, #f5576c 100%);
  --color-text: #e2e8f0;
  --color-text-muted: #a0aec0;
  --color-heading: #ffffff;
  --color-bg: #0a0b1e;
  --color-bg-alt: #111328;
  --color-bg-card: #1a1c3a;
  --color-bg-card-hover: #222550;
  --color-border: #2d3166;
  --color-border-light: rgba(102, 126, 234, 0.2);
  --color-success: #48bb78;
  --color-warning: #ecc94b;
  --color-error: #f56565;
  --radius-sm: 6px;
  --radius-md: 12px;
  --radius-lg: 20px;
  --radius-xl: 30px;
  --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.3);
  --shadow-md: 0 8px 30px rgba(0, 0, 0, 0.4);
  --shadow-lg: 0 20px 60px rgba(0, 0, 0, 0.5);
  --shadow-glow: 0 0 30px rgba(102, 126, 234, 0.3);
  --font-sans: 'PingFang SC', 'Microsoft YaHei', 'Helvetica Neue', Arial, sans-serif;
  --header-height: 72px;
  --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: 0.5s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-bounce: 0.5s cubic-bezier(0.68, -0.55, 0.265, 1.55);
}

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

html {
  scroll-behavior: smooth;
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
}

body {
  font-family: var(--font-sans);
  color: var(--color-text);
  background-color: var(--color-bg);
  line-height: 1.7;
  overflow-x: hidden;
  min-height: 100vh;
}

a { color: var(--color-primary); text-decoration: none; transition: color var(--transition-fast); }
a:hover { color: var(--color-accent); }
img { max-width: 100%; height: auto; display: block; }
ul, ol { list-style: none; }

::selection {
  background: var(--color-primary);
  color: #fff;
}

/* ---------- 滚动条 ---------- */
::-webkit-scrollbar { width: 8px; }
::-webkit-scrollbar-track { background: var(--color-bg); }
::-webkit-scrollbar-thumb { background: var(--color-border); border-radius: 4px; }
::-webkit-scrollbar-thumb:hover { background: var(--color-primary); }

/* ---------- 容器 ---------- */
.container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
}

/* ---------- 按钮 ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 28px;
  border-radius: 50px;
  font-size: 0.95rem;
  font-weight: 600;
  line-height: 1.4;
  border: none;
  cursor: pointer;
  transition: all var(--transition-base);
  position: relative;
  overflow: hidden;
  white-space: nowrap;
  text-decoration: none;
}

.btn::before {
  content: '';
  position: absolute;
  inset: 0;
  background: rgba(255,255,255,0.1);
  transform: scaleX(0);
  transform-origin: right;
  transition: transform 0.4s cubic-bezier(0.4,0,0.2,1);
}

.btn:hover::before { transform: scaleX(1); transform-origin: left; }

.btn-primary {
  background: var(--color-gradient);
  color: #fff;
  box-shadow: 0 4px 15px rgba(102, 126, 234, 0.4);
}
.btn-primary:hover {
  box-shadow: 0 8px 30px rgba(102, 126, 234, 0.6);
  transform: translateY(-2px);
  color: #fff;
}

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

.btn-outline-light {
  background: transparent;
  color: #fff;
  border: 2px solid rgba(255,255,255,0.3);
}
.btn-outline-light:hover {
  background: rgba(255,255,255,0.1);
  border-color: #fff;
  color: #fff;
  transform: translateY(-2px);
}

.btn-sm { padding: 8px 20px; font-size: 0.85rem; }
.btn-lg { padding: 16px 36px; font-size: 1.1rem; }
.btn-block { width: 100%; }

/* ---------- 标题 ---------- */
.section-header {
  text-align: center;
  margin-bottom: 60px;
}

.section-tag {
  display: inline-block;
  padding: 4px 16px;
  background: rgba(102, 126, 234, 0.15);
  border: 1px solid rgba(102, 126, 234, 0.3);
  border-radius: 50px;
  font-size: 0.8rem;
  color: var(--color-primary);
  letter-spacing: 2px;
  text-transform: uppercase;
  margin-bottom: 16px;
  font-weight: 600;
}

.section-title {
  font-size: 2.5rem;
  font-weight: 800;
  color: var(--color-heading);
  margin-bottom: 16px;
  line-height: 1.2;
}

.section-title .highlight {
  background: var(--color-gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.section-subtitle {
  max-width: 600px;
  margin: 0 auto;
  color: var(--color-text-muted);
  font-size: 1.1rem;
  line-height: 1.8;
}

/* ---------- Section 通用 ---------- */
.section {
  padding: 100px 0;
  position: relative;
}

.section > .container {
  position: relative;
  z-index: 1;
}

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

/* ---------- 页面加载动画 ---------- */
#page-loader {
  position: fixed;
  inset: 0;
  z-index: 99999;
  background: var(--color-bg);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: opacity 0.6s ease, visibility 0.6s ease;
}

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

.loader-content {
  text-align: center;
}

.loader-bar {
  width: 200px;
  height: 3px;
  background: var(--color-border);
  border-radius: 4px;
  margin-top: 24px;
  overflow: hidden;
}

.loader-bar-fill {
  height: 100%;
  width: 0;
  background: var(--color-gradient);
  border-radius: 4px;
  animation: loaderFill 1.5s ease-in-out forwards;
}

@keyframes loaderFill {
  0% { width: 0; }
  50% { width: 70%; }
  100% { width: 100%; }
}

/* ---------- 头部导航 ---------- */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  background: rgba(10, 11, 30, 0.8);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid transparent;
  transition: all var(--transition-base);
  height: var(--header-height);
}

.site-header.scrolled {
  background: rgba(10, 11, 30, 0.95);
  border-bottom-color: var(--color-border-light);
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.3);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: var(--header-height);
}

.logo {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-shrink: 0;
}

.logo-svg { filter: drop-shadow(0 2px 8px rgba(102, 126, 234, 0.3)); }

/* 桌面导航 */
.main-nav { display: flex; }

.nav-list {
  display: flex;
  align-items: center;
  gap: 4px;
}

.nav-item {
  position: relative;
}

.nav-item > a {
  display: block;
  padding: 8px 18px;
  color: var(--color-text-muted);
  font-size: 0.9rem;
  font-weight: 500;
  border-radius: 8px;
  transition: all var(--transition-fast);
  position: relative;
}

.nav-item > a::after {
  content: '';
  position: absolute;
  bottom: 2px;
  left: 50%;
  transform: translateX(-50%) scaleX(0);
  width: 20px;
  height: 2px;
  background: var(--color-gradient);
  border-radius: 2px;
  transition: transform var(--transition-base);
}

.nav-item > a:hover,
.nav-item.active > a {
  color: var(--color-heading);
  background: rgba(102, 126, 234, 0.1);
}

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

/* 下拉菜单 */
.has-dropdown > a::after {
  content: '\f107';
  font-family: 'Font Awesome 6 Free';
  font-weight: 900;
  margin-left: 4px;
  font-size: 0.75rem;
  position: static;
  transform: none;
  width: auto;
  height: auto;
  background: none;
  border-radius: 0;
}

.dropdown {
  position: absolute;
  top: 100%;
  left: 0;
  min-width: 200px;
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 8px;
  opacity: 0;
  visibility: hidden;
  transform: translateY(10px);
  transition: all var(--transition-base);
  box-shadow: var(--shadow-lg);
  z-index: 100;
}

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

.dropdown li a {
  display: block;
  padding: 10px 16px;
  color: var(--color-text-muted);
  border-radius: 6px;
  font-size: 0.88rem;
  transition: all var(--transition-fast);
}

.dropdown li a:hover {
  color: var(--color-heading);
  background: rgba(102, 126, 234, 0.1);
}

/* 头部工具 */
.header-tools {
  display: flex;
  align-items: center;
  gap: 12px;
}

.search-toggle {
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: transparent;
  border: 1px solid var(--color-border);
  border-radius: 50%;
  color: var(--color-text-muted);
  cursor: pointer;
  transition: all var(--transition-fast);
}

.search-toggle:hover {
  color: var(--color-primary);
  border-color: var(--color-primary);
}

/* 搜索面板 */
.search-panel {
  position: absolute;
  top: var(--header-height);
  left: 0;
  right: 0;
  background: var(--color-bg-card);
  border-bottom: 1px solid var(--color-border);
  padding: 20px 0;
  opacity: 0;
  visibility: hidden;
  transform: translateY(-10px);
  transition: all var(--transition-base);
}

.search-panel.open {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.search-form {
  display: flex;
  gap: 12px;
}

.search-input {
  flex: 1;
  padding: 14px 20px;
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: 50px;
  color: var(--color-text);
  font-size: 1rem;
  outline: none;
  transition: border-color var(--transition-fast);
}

.search-input:focus {
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(102, 126, 234, 0.15);
}

/* 汉堡菜单 */
.hamburger {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 36px;
  height: 36px;
  background: transparent;
  border: none;
  cursor: pointer;
  padding: 6px;
}

.hamburger span {
  display: block;
  width: 100%;
  height: 2px;
  background: var(--color-text);
  border-radius: 2px;
  transition: all var(--transition-base);
  transform-origin: center;
}

.hamburger.active span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.hamburger.active span:nth-child(2) { opacity: 0; }
.hamburger.active span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* ---------- 移动端导航 ---------- */
.mobile-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.6);
  z-index: 2000;
  opacity: 0;
  visibility: hidden;
  transition: all var(--transition-base);
}

.mobile-overlay.open { opacity: 1; visibility: visible; }

.mobile-nav {
  position: fixed;
  top: 0;
  right: -300px;
  width: 300px;
  height: 100vh;
  background: var(--color-bg-card);
  z-index: 2001;
  padding: 20px;
  overflow-y: auto;
  transition: right var(--transition-base);
  border-left: 1px solid var(--color-border);
}

.mobile-nav.open { right: 0; }

.mobile-nav-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 24px;
  padding-bottom: 16px;
  border-bottom: 1px solid var(--color-border);
}

.mobile-nav-title {
  font-size: 1.2rem;
  font-weight: 700;
  color: var(--color-heading);
}

.mobile-nav-close {
  font-size: 2rem;
  background: transparent;
  border: none;
  color: var(--color-text-muted);
  cursor: pointer;
  line-height: 1;
}

.mobile-nav-list li a {
  display: block;
  padding: 14px 0;
  color: var(--color-text);
  font-size: 1.05rem;
  font-weight: 500;
  border-bottom: 1px solid rgba(255,255,255,0.05);
  transition: color var(--transition-fast);
}

.mobile-nav-list li a:hover,
.mobile-nav-list li.active > a { color: var(--color-primary); }

.mobile-subnav { padding-left: 16px; }
.mobile-subnav li a { font-size: 0.9rem; padding: 10px 0; }

/* ---------- 页脚 ---------- */
.site-footer {
  position: relative;
  background: var(--color-bg-alt);
  overflow: hidden;
}

.footer-wave {
  position: relative;
  margin-top: -1px;
  line-height: 0;
}

.footer-wave svg {
  display: block;
  width: 100%;
  height: 80px;
}

.footer-main {
  padding: 60px 0 40px;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr 1.2fr;
  gap: 40px;
}

.footer-logo { margin-bottom: 16px; }

.footer-desc {
  color: var(--color-text-muted);
  font-size: 0.9rem;
  line-height: 1.8;
  margin-bottom: 20px;
}

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

.social-icon {
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: 50%;
  color: var(--color-text-muted);
  font-size: 1rem;
  transition: all var(--transition-base);
}

.social-icon:hover {
  background: var(--color-gradient);
  color: #fff;
  border-color: transparent;
  transform: translateY(-3px);
}

.footer-title {
  font-size: 1rem;
  font-weight: 700;
  color: var(--color-heading);
  margin-bottom: 20px;
  position: relative;
  padding-bottom: 10px;
}

.footer-title::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 30px;
  height: 2px;
  background: var(--color-gradient);
  border-radius: 2px;
}

.footer-links li {
  margin-bottom: 10px;
}

.footer-links a {
  color: var(--color-text-muted);
  font-size: 0.88rem;
  transition: all var(--transition-fast);
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

.footer-links a::before {
  content: '\f105';
  font-family: 'Font Awesome 6 Free';
  font-weight: 900;
  font-size: 0.7rem;
  color: var(--color-primary);
  opacity: 0;
  transition: all var(--transition-fast);
}

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

.footer-links a:hover::before { opacity: 1; }

.footer-contact li {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  margin-bottom: 14px;
  color: var(--color-text-muted);
  font-size: 0.88rem;
}

.footer-contact li i {
  margin-top: 4px;
  color: var(--color-primary);
  width: 16px;
  text-align: center;
}

.footer-contact a { color: var(--color-text-muted); }
.footer-contact a:hover { color: var(--color-primary); }

.footer-bottom {
  border-top: 1px solid var(--color-border);
  padding: 20px 0;
}

.footer-bottom-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  font-size: 0.82rem;
  color: var(--color-text-muted);
}

.footer-bottom-inner a { color: var(--color-text-muted); }
.footer-bottom-inner a:hover { color: var(--color-primary); }

/* ---------- 回到顶部 ---------- */
.back-to-top {
  position: fixed;
  bottom: 30px;
  right: 30px;
  z-index: 999;
  width: 48px;
  height: 48px;
  background: var(--color-gradient);
  color: #fff;
  border: none;
  border-radius: 50%;
  cursor: pointer;
  font-size: 1.2rem;
  box-shadow: var(--shadow-glow);
  opacity: 0;
  visibility: hidden;
  transform: translateY(20px);
  transition: all var(--transition-base);
}

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

.back-to-top:hover {
  transform: translateY(-4px);
  box-shadow: 0 0 40px rgba(102, 126, 234, 0.5);
}

/* ============================================================
   HERO 区域（主页）
   ============================================================ */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  padding-top: var(--header-height);
  background: var(--color-bg);
}

/* 粒子/网格背景 */
.hero-bg {
  position: absolute;
  inset: 0;
  overflow: hidden;
}

.hero-grid {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(102, 126, 234, 0.05) 1px, transparent 1px),
    linear-gradient(90deg, rgba(102, 126, 234, 0.05) 1px, transparent 1px);
  background-size: 60px 60px;
  animation: gridMove 20s linear infinite;
}

@keyframes gridMove {
  0% { transform: translate(0, 0); }
  100% { transform: translate(60px, 60px); }
}

.hero-glow {
  position: absolute;
  width: 600px;
  height: 600px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(102, 126, 234, 0.15), transparent 70%);
  top: 20%;
  right: -10%;
  animation: glowPulse 4s ease-in-out infinite;
}

.hero-glow-2 {
  position: absolute;
  width: 400px;
  height: 400px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(118, 75, 162, 0.12), transparent 70%);
  bottom: 10%;
  left: -5%;
  animation: glowPulse 5s ease-in-out infinite 1s;
}

@keyframes glowPulse {
  0%, 100% { opacity: 0.5; transform: scale(1); }
  50% { opacity: 1; transform: scale(1.1); }
}

/* 浮动粒子 */
.hero-particles {
  position: absolute;
  inset: 0;
  pointer-events: none;
}

.particle {
  position: absolute;
  width: 4px;
  height: 4px;
  background: var(--color-primary);
  border-radius: 50%;
  opacity: 0.3;
}

.hero-content {
  position: relative;
  z-index: 2;
  text-align: center;
  max-width: 900px;
  padding: 0 24px;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 20px;
  background: rgba(102, 126, 234, 0.12);
  border: 1px solid rgba(102, 126, 234, 0.25);
  border-radius: 50px;
  font-size: 0.8rem;
  color: var(--color-primary);
  margin-bottom: 24px;
  animation: fadeInUp 0.6s ease;
}

.hero-badge .dot {
  width: 6px;
  height: 6px;
  background: var(--color-success);
  border-radius: 50%;
  animation: pulse 2s infinite;
}

@keyframes pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.4; }
}

.hero-title {
  font-size: clamp(2.5rem, 6vw, 4.5rem);
  font-weight: 900;
  color: var(--color-heading);
  line-height: 1.1;
  margin-bottom: 24px;
  letter-spacing: -1px;
}

.hero-title .gradient-text {
  background: var(--color-gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-desc {
  font-size: clamp(1rem, 2vw, 1.25rem);
  color: var(--color-text-muted);
  max-width: 650px;
  margin: 0 auto 40px;
  line-height: 1.8;
}

.hero-actions {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 16px;
  flex-wrap: wrap;
}

.hero-scroll {
  position: absolute;
  bottom: 40px;
  left: 50%;
  transform: translateX(-50%);
  z-index: 2;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  color: var(--color-text-muted);
  font-size: 0.75rem;
  letter-spacing: 2px;
  animation: fadeInUp 1s ease 1s both;
}

.scroll-mouse {
  width: 26px;
  height: 40px;
  border: 2px solid var(--color-text-muted);
  border-radius: 13px;
  position: relative;
}

.scroll-mouse::before {
  content: '';
  position: absolute;
  top: 6px;
  left: 50%;
  transform: translateX(-50%);
  width: 3px;
  height: 8px;
  background: var(--color-primary);
  border-radius: 2px;
  animation: scrollWheel 1.5s ease-in-out infinite;
}

@keyframes scrollWheel {
  0% { opacity: 1; transform: translateX(-50%) translateY(0); }
  100% { opacity: 0; transform: translateX(-50%) translateY(12px); }
}

/* ============================================================
   产品/服务卡片
   ============================================================ */
.products-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 24px;
}

.product-card {
  position: relative;
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 36px 28px;
  transition: all var(--transition-base);
  overflow: hidden;
  cursor: default;
}

.product-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: var(--color-gradient);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform var(--transition-slow);
}

.product-card:hover {
  border-color: rgba(102, 126, 234, 0.3);
  transform: translateY(-8px);
  box-shadow: var(--shadow-glow);
}

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

.product-icon {
  width: 56px;
  height: 56px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(102, 126, 234, 0.12);
  border-radius: var(--radius-md);
  font-size: 1.5rem;
  color: var(--color-primary);
  margin-bottom: 20px;
  transition: all var(--transition-base);
}

.product-card:hover .product-icon {
  background: var(--color-gradient);
  color: #fff;
  transform: scale(1.1) rotate(-5deg);
}

.product-card h3 {
  font-size: 1.2rem;
  font-weight: 700;
  color: var(--color-heading);
  margin-bottom: 8px;
}

.product-card .product-subtitle {
  font-size: 0.85rem;
  color: var(--color-primary);
  margin-bottom: 12px;
}

.product-card p {
  color: var(--color-text-muted);
  font-size: 0.88rem;
  line-height: 1.7;
}

.product-card .card-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  margin-top: 16px;
  font-size: 0.88rem;
  font-weight: 600;
  color: var(--color-primary);
  transition: gap var(--transition-fast);
}

.product-card:hover .card-link {
  gap: 10px;
}

/* ============================================================
   案例展示
   ============================================================ */
.gallery-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  gap: 24px;
}

.gallery-card {
  position: relative;
  border-radius: var(--radius-lg);
  overflow: hidden;
  cursor: pointer;
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  transition: all var(--transition-base);
}

.gallery-card:hover {
  transform: translateY(-6px);
  border-color: rgba(102, 126, 234, 0.3);
  box-shadow: var(--shadow-glow);
}

.gallery-card-image {
  position: relative;
  height: 240px;
  background: var(--color-bg-alt);
  overflow: hidden;
}

.gallery-card-image .placeholder-img {
  width: 100%;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 3rem;
  opacity: 0.3;
  transition: all var(--transition-slow);
}

.gallery-card:hover .placeholder-img {
  transform: scale(1.1);
  opacity: 0.5;
}

.gallery-card-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, rgba(0,0,0,0.8) 0%, transparent 60%);
  opacity: 0;
  transition: opacity var(--transition-base);
  display: flex;
  align-items: flex-end;
  padding: 20px;
}

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

.gallery-card-body {
  padding: 20px;
}

.gallery-card-body h3 {
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--color-heading);
  margin-bottom: 4px;
}

.gallery-card-body .gallery-category {
  font-size: 0.78rem;
  color: var(--color-primary);
  font-weight: 600;
  letter-spacing: 1px;
  margin-bottom: 8px;
}

.gallery-card-body p {
  font-size: 0.85rem;
  color: var(--color-text-muted);
  line-height: 1.6;
}

/* ============================================================
   数字统计
   ============================================================ */
.stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}

.stat-item {
  text-align: center;
  padding: 36px 20px;
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  transition: all var(--transition-base);
}

.stat-item:hover {
  border-color: rgba(102, 126, 234, 0.3);
  transform: translateY(-4px);
}

.stat-number {
  font-size: 2.8rem;
  font-weight: 900;
  background: var(--color-gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  line-height: 1.2;
  margin-bottom: 4px;
}

.stat-number .suffix {
  font-size: 1.6rem;
}

.stat-label {
  font-size: 0.9rem;
  color: var(--color-text-muted);
}

/* ============================================================
   新闻/文章列表
   ============================================================ */
.news-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  gap: 24px;
}

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

.news-card:hover {
  transform: translateY(-6px);
  border-color: rgba(102, 126, 234, 0.3);
  box-shadow: var(--shadow-glow);
}

.news-card-image {
  height: 200px;
  background: var(--color-bg-alt);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 2.5rem;
  color: var(--color-text-muted);
  opacity: 0.2;
  overflow: hidden;
  transition: all var(--transition-slow);
}

.news-card:hover .news-card-image {
  opacity: 0.3;
  transform: scale(1.05);
}

.news-card-body {
  padding: 24px;
}

.news-meta {
  display: flex;
  align-items: center;
  gap: 16px;
  margin-bottom: 12px;
  font-size: 0.8rem;
  color: var(--color-text-muted);
}

.news-meta .news-category {
  padding: 2px 10px;
  background: rgba(102, 126, 234, 0.12);
  border-radius: 50px;
  color: var(--color-primary);
  font-weight: 600;
}

.news-card-body h3 {
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--color-heading);
  margin-bottom: 10px;
  line-height: 1.4;
}

.news-card-body p {
  font-size: 0.88rem;
  color: var(--color-text-muted);
  line-height: 1.7;
  margin-bottom: 16px;
}

.news-card-body .read-more {
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--color-primary);
  display: inline-flex;
  align-items: center;
  gap: 6px;
  transition: gap var(--transition-fast);
}

.news-card:hover .read-more { gap: 10px; }

/* ============================================================
   跑马灯 / 横向滚动模块
   ============================================================ */
.marquee-section {
  overflow: hidden;
  position: relative;
}

.marquee-wrapper {
  position: relative;
  overflow: hidden;
  padding: 20px 0;
}

/* 左右渐变遮罩 */
.marquee-wrapper::before,
.marquee-wrapper::after {
  content: '';
  position: absolute;
  top: 0;
  bottom: 0;
  width: 80px;
  z-index: 2;
  pointer-events: none;
}

.marquee-wrapper::before {
  left: 0;
  background: linear-gradient(to right, var(--color-bg) 0%, transparent 100%);
}

.marquee-wrapper::after {
  right: 0;
  background: linear-gradient(to left, var(--color-bg) 0%, transparent 100%);
}

.section-alt .marquee-wrapper::before {
  background: linear-gradient(to right, var(--color-bg-alt) 0%, transparent 100%);
}

.section-alt .marquee-wrapper::after {
  background: linear-gradient(to left, var(--color-bg-alt) 0%, transparent 100%);
}

.marquee-track {
  display: flex;
  gap: 24px;
  width: max-content;
  animation: marqueeScroll 40s linear infinite;
  padding: 10px 0;
}

/* 各板块不同速度 */
.marquee-products .marquee-track { animation-duration: 45s; }
.marquee-gallery .marquee-track { animation-duration: 35s; }
.marquee-news .marquee-track { animation-duration: 30s; }

/* 鼠标悬停暂停滚动 */
.marquee-wrapper:hover .marquee-track {
  animation-play-state: paused;
}

/* 每4个卡片一组横向排列（纯 flex，保证跑马灯滚动正常） */
.marquee-group {
  display: flex;
  gap: 24px;
  flex-shrink: 0;
  min-width: 0;
}

/* group 内的卡片固定宽度，4 张卡片 + 3 个 gap = 总组宽 */
.marquee-products .marquee-group {
  width: 1160px; /* 272×4 + 24×3 */
}
.marquee-gallery .marquee-group,
.marquee-news .marquee-group {
  width: 1300px; /* 307×4 + 24×3 */
}

.marquee-products .marquee-group .product-card {
  width: 272px;
  flex-shrink: 0;
}
.marquee-gallery .marquee-group .gallery-card,
.marquee-news .marquee-group .news-card {
  width: 307px;
  flex-shrink: 0;
}

@keyframes marqueeScroll {
  0%   { transform: translateX(0); }
  100% { transform: translateX(-50%); }
}

/* 手动控制按钮 */
.marquee-controls {
  display: flex;
  justify-content: center;
  gap: 12px;
  margin-top: 24px;
}

.marquee-btn {
  width: 44px;
  height: 44px;
  border-radius: 50%;
  border: 1px solid var(--color-border);
  background: var(--color-bg-card);
  color: var(--color-text);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all var(--transition-fast);
  font-size: 1rem;
}

.marquee-btn:hover {
  border-color: var(--color-primary);
  color: var(--color-primary);
  background: rgba(102, 126, 234, 0.1);
}

/* 跑马灯内卡片微调 */
.marquee-track .product-card,
.marquee-track .gallery-card,
.marquee-track .news-card {
  height: 100%;
}

.marquee-track .news-card-body {
  display: flex;
  flex-direction: column;
}

.marquee-track .news-card-body .read-more {
  margin-top: auto;
}

/* ============================================================
   合作伙伴
   ============================================================ */
.partners-section {
  overflow: hidden;
}

.partners-track {
  display: flex;
  align-items: center;
  gap: 60px;
  animation: partnerScroll 25s linear infinite;
  width: max-content;
}

.partner-item {
  flex-shrink: 0;
  width: 140px;
  height: 60px;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0.3;
  transition: opacity var(--transition-base);
  font-size: 0.85rem;
  color: var(--color-text-muted);
  text-align: center;
  font-weight: 600;
  letter-spacing: 1px;
}

.partner-item:hover { opacity: 0.7; }

@keyframes partnerScroll {
  0% { transform: translateX(0); }
  100% { transform: translateX(-50%); }
}

/* ============================================================
   CTA 区域
   ============================================================ */
.cta-section {
  text-align: center;
  padding: 80px 0;
  background: var(--color-gradient);
  border-radius: var(--radius-xl);
  margin: 0 24px;
  position: relative;
  overflow: hidden;
}

.cta-section::before {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(circle at 30% 50%, rgba(255,255,255,0.1), transparent 60%);
}

.cta-section h2 {
  font-size: 2.2rem;
  font-weight: 800;
  color: #fff;
  margin-bottom: 16px;
  position: relative;
}

.cta-section p {
  color: rgba(255,255,255,0.85);
  font-size: 1.1rem;
  margin-bottom: 32px;
  position: relative;
}

.cta-section .btn {
  background: #fff;
  color: var(--color-primary-dark);
  position: relative;
}

.cta-section .btn:hover {
  transform: translateY(-3px);
  box-shadow: 0 10px 30px rgba(0,0,0,0.2);
  color: var(--color-primary-dark);
}

/* ============================================================
   页面标题横幅
   ============================================================ */
.page-banner {
  position: relative;
  padding: 140px 0 80px;
  text-align: center;
  overflow: hidden;
  background: var(--color-bg);
}

.page-banner-bg {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(102, 126, 234, 0.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(102, 126, 234, 0.04) 1px, transparent 1px);
  background-size: 40px 40px;
}

.page-banner .container {
  position: relative;
  z-index: 2;
}

.page-banner h1 {
  font-size: 2.8rem;
  font-weight: 900;
  color: var(--color-heading);
  margin-bottom: 12px;
}

.page-banner .breadcrumb {
  font-size: 0.88rem;
  color: var(--color-text-muted);
}

.page-banner .breadcrumb a { color: var(--color-primary); }
.page-banner .breadcrumb span { color: var(--color-text-muted); }

/* ============================================================
   关于页面
   ============================================================ */
.about-intro {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: center;
}

.about-text h2 {
  font-size: 2rem;
  font-weight: 800;
  color: var(--color-heading);
  margin-bottom: 20px;
}

.about-text p {
  color: var(--color-text-muted);
  line-height: 1.9;
  margin-bottom: 16px;
}

.about-image {
  position: relative;
  border-radius: var(--radius-lg);
  overflow: hidden;
  background: var(--color-bg-card);
  height: 400px;
  display: flex;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--color-border);
}

.about-image .placeholder {
  font-size: 5rem;
  opacity: 0.15;
}

.values-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.value-card {
  text-align: center;
  padding: 36px 24px;
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  transition: all var(--transition-base);
}

.value-card:hover {
  transform: translateY(-6px);
  border-color: rgba(102, 126, 234, 0.3);
}

.value-card .value-icon {
  width: 64px;
  height: 64px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 20px;
  background: rgba(102, 126, 234, 0.1);
  border-radius: 50%;
  font-size: 1.6rem;
  color: var(--color-primary);
  transition: all var(--transition-base);
}

.value-card:hover .value-icon {
  background: var(--color-gradient);
  color: #fff;
  transform: scale(1.1) rotateY(180deg);
}

.value-card h3 {
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--color-heading);
  margin-bottom: 8px;
}

.value-card p {
  font-size: 0.88rem;
  color: var(--color-text-muted);
  line-height: 1.7;
}

/* ============================================================
   产品详情页
   ============================================================ */
.product-detail-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: center;
}

.product-detail-image {
  border-radius: var(--radius-lg);
  overflow: hidden;
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  height: 400px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.product-detail-image .placeholder {
  font-size: 4rem;
  opacity: 0.15;
}

.product-detail h2 {
  font-size: 2rem;
  font-weight: 800;
  color: var(--color-heading);
  margin-bottom: 8px;
}

.product-detail .product-subtitle {
  font-size: 1.1rem;
  color: var(--color-primary);
  margin-bottom: 16px;
}

.product-detail .product-desc {
  color: var(--color-text-muted);
  line-height: 1.9;
  margin-bottom: 24px;
}

.features-list {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
}

.features-list li {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 0.9rem;
  color: var(--color-text);
}

.features-list li i {
  color: var(--color-success);
  font-size: 0.85rem;
}

/* ============================================================
   联系我们
   ============================================================ */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
}

.contact-info h2 {
  font-size: 1.8rem;
  font-weight: 800;
  color: var(--color-heading);
  margin-bottom: 16px;
}

.contact-info .contact-intro {
  color: var(--color-text-muted);
  line-height: 1.8;
  margin-bottom: 32px;
}

.contact-methods {
  display: flex;
  flex-direction: column;
  gap: 20px;
  margin-bottom: 32px;
}

.contact-method {
  display: flex;
  align-items: flex-start;
  gap: 16px;
}

.contact-method-icon {
  width: 48px;
  height: 48px;
  flex-shrink: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(102, 126, 234, 0.1);
  border-radius: var(--radius-md);
  color: var(--color-primary);
  font-size: 1.2rem;
}

.contact-method-text h4 {
  font-size: 0.9rem;
  font-weight: 700;
  color: var(--color-heading);
  margin-bottom: 4px;
}

.contact-method-text p,
.contact-method-text a {
  font-size: 0.9rem;
  color: var(--color-text-muted);
}

.contact-form {
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 36px;
}

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

.form-group label {
  display: block;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--color-heading);
  margin-bottom: 6px;
}

.form-group .required::after {
  content: ' *';
  color: var(--color-error);
}

.form-control {
  width: 100%;
  padding: 12px 16px;
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  color: var(--color-text);
  font-size: 0.95rem;
  font-family: var(--font-sans);
  outline: none;
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}

.form-control:focus {
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(102, 126, 234, 0.15);
}

.form-control::placeholder { color: var(--color-text-muted); opacity: 0.6; }

textarea.form-control {
  min-height: 130px;
  resize: vertical;
}

/* ============================================================
   分页
   ============================================================ */
.pagination {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  margin-top: 48px;
}

.pagination a,
.pagination span {
  display: flex;
  align-items: center;
  justify-content: center;
  min-width: 40px;
  height: 40px;
  padding: 0 12px;
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  font-size: 0.88rem;
  color: var(--color-text-muted);
  transition: all var(--transition-fast);
}

.pagination a:hover {
  border-color: var(--color-primary);
  color: var(--color-primary);
}

.pagination .current {
  background: var(--color-gradient);
  border-color: transparent;
  color: #fff;
  font-weight: 700;
}

/* ============================================================
   文章详情页
   ============================================================ */
.article-detail {
  max-width: 800px;
  margin: 0 auto;
}

.article-detail .article-header {
  margin-bottom: 32px;
  padding-bottom: 24px;
  border-bottom: 1px solid var(--color-border);
}

.article-detail h1 {
  font-size: 2.2rem;
  font-weight: 800;
  color: var(--color-heading);
  margin-bottom: 16px;
  line-height: 1.3;
}

.article-detail .article-content {
  color: var(--color-text);
  line-height: 2;
  font-size: 1.05rem;
}

.article-detail .article-content h2,
.article-detail .article-content h3 {
  color: var(--color-heading);
  margin: 32px 0 16px;
}

.article-detail .article-content h2 { font-size: 1.6rem; }
.article-detail .article-content h3 { font-size: 1.3rem; }

.article-detail .article-content p {
  margin-bottom: 16px;
}

/* ============================================================
   后台管理页面
   ============================================================ */
.admin-wrapper {
  display: flex;
  min-height: 100vh;
}

.admin-sidebar {
  width: 260px;
  background: var(--color-bg-card);
  border-right: 1px solid var(--color-border);
  padding: 24px 0;
  flex-shrink: 0;
  position: fixed;
  top: 0;
  left: 0;
  height: 100vh;
  overflow-y: auto;
  z-index: 100;
}

.admin-sidebar .admin-logo {
  padding: 0 24px 24px;
  border-bottom: 1px solid var(--color-border);
  margin-bottom: 16px;
}

.admin-nav li a {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 12px 24px;
  color: var(--color-text-muted);
  font-size: 0.9rem;
  transition: all var(--transition-fast);
  border-left: 3px solid transparent;
}

.admin-nav li a:hover,
.admin-nav li.active a {
  background: rgba(102, 126, 234, 0.08);
  color: var(--color-primary);
  border-left-color: var(--color-primary);
}

.admin-main {
  margin-left: 260px;
  flex: 1;
  padding: 32px;
  width: calc(100% - 260px);
}

.admin-header-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 32px;
  padding-bottom: 16px;
  border-bottom: 1px solid var(--color-border);
}

.admin-header-bar h1 {
  font-size: 1.5rem;
  font-weight: 800;
  color: var(--color-heading);
}

/* 后台表格 */
.admin-table {
  width: 100%;
  border-collapse: collapse;
}

.admin-table th {
  text-align: left;
  padding: 12px 16px;
  font-size: 0.78rem;
  font-weight: 700;
  color: var(--color-text-muted);
  text-transform: uppercase;
  letter-spacing: 1px;
  border-bottom: 2px solid var(--color-border);
}

.admin-table td {
  padding: 14px 16px;
  font-size: 0.9rem;
  color: var(--color-text);
  border-bottom: 1px solid var(--color-border);
}

.admin-table tr:hover td {
  background: rgba(102, 126, 234, 0.03);
}

/* 状态标签 */
.tag {
  display: inline-block;
  padding: 2px 10px;
  border-radius: 50px;
  font-size: 0.75rem;
  font-weight: 600;
}

.tag-success { background: rgba(72, 187, 120, 0.15); color: var(--color-success); }
.tag-warning { background: rgba(236, 201, 75, 0.15); color: var(--color-warning); }
.tag-error { background: rgba(245, 101, 101, 0.15); color: var(--color-error); }

/* ============================================================
   404 页面
   ============================================================ */
.error-page {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 24px;
}

.error-code {
  font-size: 10rem;
  font-weight: 900;
  background: var(--color-gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  line-height: 1;
  margin-bottom: 16px;
}

.error-page h1 {
  font-size: 2rem;
  font-weight: 800;
  color: var(--color-heading);
  margin-bottom: 12px;
}

.error-page p {
  color: var(--color-text-muted);
  margin-bottom: 32px;
}

/* ============================================================
   动画工具类
   ============================================================ */
[data-aos] {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

[data-aos].aos-animate {
  opacity: 1;
  transform: translateY(0);
}

[data-aos="fade-up"] { transform: translateY(40px); }
[data-aos="fade-down"] { transform: translateY(-40px); }
[data-aos="fade-left"] { transform: translateX(40px); }
[data-aos="fade-right"] { transform: translateX(-40px); }
[data-aos="fade-in"] { transform: none; }
[data-aos="scale-in"] { transform: scale(0.9); }
[data-aos="scale-in"].aos-animate { transform: scale(1); }

/* ---------- 视差 ---------- */
[data-parallax] {
  transition: transform 0.1s linear;
}

/* ============================================================
   响应式
   ============================================================ */
@media (max-width: 1024px) {
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .about-intro { grid-template-columns: 1fr; gap: 40px; }
  .product-detail-grid { grid-template-columns: 1fr; gap: 40px; }
  .contact-grid { grid-template-columns: 1fr; gap: 40px; }
  .values-grid { grid-template-columns: 1fr 1fr; }
  .stats-grid { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 768px) {
  .main-nav { display: none; }
  .hamburger { display: flex; }
  .d-none-mobile { display: none !important; }
  .section { padding: 60px 0; }
  .section-title { font-size: 1.8rem; }
  .hero-title { font-size: 2.2rem; }
  .hero-actions { flex-direction: column; }
  .footer-grid { grid-template-columns: 1fr; }
  .footer-bottom-inner { flex-direction: column; text-align: center; }
  .values-grid { grid-template-columns: 1fr; }
  .stats-grid { grid-template-columns: 1fr 1fr; }
  .stat-number { font-size: 2rem; }
  .page-banner h1 { font-size: 2rem; }
  .page-banner { padding: 120px 0 60px; }
  .contact-form { padding: 24px; }
  .cta-section { padding: 60px 24px; margin: 0 16px; }
  .cta-section h2 { font-size: 1.6rem; }
  .admin-sidebar { display: none; }
  .admin-main { margin-left: 0; width: 100%; }
  .gallery-grid { grid-template-columns: 1fr; }
  .news-grid { grid-template-columns: 1fr; }
  .products-grid { grid-template-columns: 1fr; }
  .features-list { grid-template-columns: 1fr; }
  .admin-table { font-size: 0.8rem; }
  .error-code { font-size: 6rem; }

  /* 跑马灯移动端适配 — flex 版 */
  .marquee-group { gap: 16px; }
  .marquee-products .marquee-group { width: 928px; }
  .marquee-products .marquee-group .product-card { width: 220px; }
  .marquee-gallery .marquee-group,
  .marquee-news .marquee-group { width: 1008px; }
  .marquee-gallery .marquee-group .gallery-card,
  .marquee-news .marquee-group .news-card { width: 240px; }
  .marquee-wrapper::before,
  .marquee-wrapper::after { width: 40px; }
  .marquee-track { gap: 16px; }
  .marquee-products .marquee-track { animation-duration: 30s; }
  .marquee-gallery .marquee-track { animation-duration: 25s; }
  .marquee-news .marquee-track { animation-duration: 22s; }
}

@media (max-width: 480px) {
  .container { padding: 0 16px; }
  .hero-title { font-size: 1.8rem; }
  .stats-grid { grid-template-columns: 1fr; }
  .section-title { font-size: 1.5rem; }

  /* 跑马灯小屏 */
  .marquee-group { gap: 12px; }
  .marquee-products .marquee-group { width: 756px; }
  .marquee-products .marquee-group .product-card { width: 180px; }
  .marquee-gallery .marquee-group,
  .marquee-news .marquee-group { width: 836px; }
  .marquee-gallery .marquee-group .gallery-card,
  .marquee-news .marquee-group .news-card { width: 200px; }
}

/* ---------- 徽章动画 ---------- */
.badge-pulse {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 4px 14px;
  background: rgba(102, 126, 234, 0.1);
  border-radius: 50px;
  font-size: 0.78rem;
  color: var(--color-primary);
}

.badge-pulse .badge-dot {
  width: 6px;
  height: 6px;
  background: var(--color-success);
  border-radius: 50%;
  animation: pulse 2s infinite;
}

/* ---------- 成功消息 ---------- */
.alert {
  padding: 16px 20px;
  border-radius: var(--radius-sm);
  margin-bottom: 20px;
  font-size: 0.9rem;
}

.alert-success {
  background: rgba(72, 187, 120, 0.1);
  border: 1px solid rgba(72, 187, 120, 0.3);
  color: var(--color-success);
}

.alert-error {
  background: rgba(245, 101, 101, 0.1);
  border: 1px solid rgba(245, 101, 101, 0.3);
  color: var(--color-error);
}

/* ============================================================
   背景装饰图片
   ============================================================ */
.section-bg-img {
  position: absolute;
  inset: 0;
  z-index: 0;
  background-size: cover;
  background-position: center;
  background-repeat: no-repeat;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.8s ease;
}

/* Hero 首屏背景立即可见 */
.hero .section-bg-img {
  opacity: 1;
}

/* 懒加载完成后的背景装饰透明度 */
.section-bg-img.loaded {
  opacity: 0.3;
}

.about-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}