/* ========== 主题变量 ========== */
:root,
[data-theme="light"] {
  --bg: #ffffff;
  --bg-secondary: #f5f5f7;
  --bg-card: rgba(0,0,0,0.03);
  --bg-card-hover: rgba(0,0,0,0.06);
  --text-primary: #1d1d1f;
  --text-secondary: #6e6e73;
  --text-muted: #aeaeb2;
  --accent: #1a5e1f;
  --accent-hover: #247a2a;
  --green: #30d158;
  --green-dark: #1a5e1f;
  --border: rgba(0,0,0,0.08);
  --border-hover: rgba(0,0,0,0.15);
  --nav-bg: rgba(255,255,255,0.72);
  --nav-border: rgba(0,0,0,0.08);
  --modal-bg: #ffffff;
  --modal-overlay: rgba(0,0,0,0.4);
  --form-input-bg: rgba(0,0,0,0.04);
  --form-input-focus-bg: rgba(26,94,31,0.05);
  --scrollbar-thumb: rgba(0,0,0,0.15);
  --silver: #c0c0c0;
  --silver-light: #e8e8ed;
  --silver-dark: #86868b;
  --transition: 0.3s ease;
  --transition-fast: 0.2s ease;
  --transition-normal: 0.35s ease;
  --radius: 16px;
  --radius-sm: 12px;
  --radius-xs: 8px;
  --nav-height: 52px;
  --footer-bg: var(--bg-secondary);
}

[data-theme="dark"] {
  --bg: #000000;
  --bg-secondary: #0a0a0a;
  --bg-card: rgba(255,255,255,0.04);
  --bg-card-hover: rgba(255,255,255,0.08);
  --text-primary: #f5f5f7;
  --text-secondary: #a1a1a6;
  --text-muted: #6e6e73;
  --accent: #4cd964;
  --accent-hover: #63e678;
  --green: #30d158;
  --green-dark: #4cd964;
  --border: rgba(255,255,255,0.08);
  --border-hover: rgba(255,255,255,0.15);
  --nav-bg: rgba(0,0,0,0.72);
  --nav-border: rgba(255,255,255,0.08);
  --modal-bg: #1c1c1e;
  --modal-overlay: rgba(0,0,0,0.7);
  --form-input-bg: rgba(255,255,255,0.06);
  --form-input-focus-bg: rgba(76,217,100,0.08);
  --scrollbar-thumb: rgba(255,255,255,0.15);
  --silver: #98989d;
  --silver-light: #3a3a3c;
  --silver-dark: #636366;
  --transition: 0.3s ease;
  --transition-fast: 0.2s ease;
  --transition-normal: 0.35s ease;
  --radius: 16px;
  --radius-sm: 12px;
  --radius-xs: 8px;
  --nav-height: 52px;
  --footer-bg: var(--bg-secondary);
}

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

body {
  font-family: -apple-system, BlinkMacSystemFont, "SF Pro Text", "Helvetica Neue", Arial, sans-serif;
  background: var(--bg);
  color: var(--text-primary);
  line-height: 1.6;
  transition: background var(--transition-normal), color var(--transition-normal);
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
  padding-top: var(--nav-height);
}

::-webkit-scrollbar { width: 6px; }
::-webkit-scrollbar-track { background: var(--bg-secondary); }
::-webkit-scrollbar-thumb { background: var(--scrollbar-thumb); border-radius: 3px; }

a { text-decoration: none; color: inherit; }
img { max-width: 100%; height: auto; }
button { cursor: pointer; border: none; background: none; font-family: inherit; }
input, textarea, select { font-family: inherit; }

/* ========== 导航栏 ========== */
.navbar {
  position: fixed; top: 0; left: 0; right: 0;
  height: var(--nav-height);
  background: var(--nav-bg);
  border-bottom: 1px solid var(--silver);
  backdrop-filter: saturate(180%) blur(20px);
  -webkit-backdrop-filter: saturate(180%) blur(20px);
  z-index: 1000;
  transition: background var(--transition-normal), border-color var(--transition-normal);
}
.navbar.scrolled {
  box-shadow: 0 1px 0 var(--border);
}
.nav-container {
  max-width: 1120px;
  margin: 0 auto;
  padding: 0 24px;
  height: 100%;
  display: flex;
  align-items: center;
  gap: 24px;
}
.logo {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-shrink: 0;
}
.logo-img { height: 22px; width: auto; }
.logo-text {
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--text-primary);
  letter-spacing: -0.01em;
}
.nav-menu {
  display: flex;
  align-items: center;
  gap: 4px;
  list-style: none;
  flex: 1;
}
.nav-link {
  font-size: 0.82rem;
  color: var(--text-secondary);
  transition: var(--transition-fast);
  letter-spacing: 0.01em;
  font-weight: 400;
  display: block;
  padding: 4px 0;
}
.nav-link:hover, .nav-link.active { color: var(--text-primary); }
.nav-link.active::after {
  content: '';
  display: block;
  width: 100%;
  height: 2px;
  margin-top: 2px;
  background: linear-gradient(90deg, #FF6B6B, #FFE66D, #4ECDC4, #45B7D1);
  border-radius: 1px;
}

/* ========== 下拉菜单 ========== */
.nav-dropdown { position: relative; }
.nav-submenu {
  display: none;
  position: absolute;
  top: 100%;
  left: 0;
  min-width: 140px;
  background: var(--nav-bg);
  border: 1px solid var(--silver-light);
  border-radius: var(--radius-sm);
  padding: 6px;
  list-style: none;
  backdrop-filter: saturate(180%) blur(20px);
  -webkit-backdrop-filter: saturate(180%) blur(20px);
  box-shadow: 0 4px 24px rgba(0,0,0,0.1);
  z-index: 1001;
}
.nav-submenu.show {
  display: block;
  animation: submenuFadeIn 0.2s ease forwards;
}
@keyframes submenuFadeIn {
  from { opacity: 0; transform: translateY(-4px); }
  to { opacity: 1; transform: translateY(0); }
}
.nav-submenu.fadeOut {
  animation: submenuFadeOut 0.2s ease forwards;
}
@keyframes submenuFadeOut {
  from { opacity: 1; transform: translateY(0); }
  to { opacity: 0; transform: translateY(-4px); }
}
.nav-submenu li a {
  display: block;
  padding: 8px 12px;
  font-size: 0.82rem;
  color: var(--text-secondary);
  border-radius: var(--radius-xs);
  transition: var(--transition-fast);
}
.nav-submenu li a:hover {
  background: var(--bg-card-hover);
  color: var(--text-primary);
}

.nav-actions {
  display: flex;
  align-items: center;
  gap: 12px;
}
.btn-login {
  font-size: 0.82rem;
  color: var(--accent);
  padding: 4px 0;
  transition: var(--transition-fast);
}
.btn-login:hover { color: var(--accent-hover); }
.user-menu {
  display: flex;
  align-items: center;
  gap: 8px;
  cursor: pointer;
  padding: 4px 8px;
  border-radius: 20px;
  transition: var(--transition-fast);
}
.user-menu:hover { background: var(--bg-card-hover); }
.user-avatar-small {
  width: 28px; height: 28px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--accent), var(--green));
  display: flex; align-items: center; justify-content: center;
  font-size: 0.7rem; font-weight: 600; color: #fff;
}
.user-name { font-size: 0.82rem; color: var(--text-secondary); }
.btn-logout { font-size: 0.82rem; color: var(--text-muted); transition: var(--transition-fast); }
.btn-logout:hover { color: var(--text-primary); }

.menu-toggle { display: none; color: var(--text-primary); padding: 4px; cursor: pointer; }
.menu-toggle svg { width: 22px; height: 22px; }
.menu-toggle line {
  stroke: var(--text-secondary);
  stroke-width: 2;
  stroke-linecap: round;
  transition: var(--transition-fast);
  transform-box: fill-box;
  transform-origin: center;
}
.menu-toggle.active line:nth-child(1) { transform: translateY(6px) rotate(45deg); }
.menu-toggle.active line:nth-child(2) { opacity: 0; }
.menu-toggle.active line:nth-child(3) { transform: translateY(-6px) rotate(-45deg); }

/* ========== 主题切换按钮 ========== */
.theme-toggle {
  width: 32px; height: 32px;
  border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  color: var(--text-secondary);
  transition: var(--transition-fast);
  border: 1px solid transparent;
  flex-shrink: 0;
}
.theme-toggle:hover {
  background: var(--bg-card-hover);
  color: var(--text-primary);
  border-color: var(--silver);
  box-shadow: 0 0 12px rgba(192,192,192,0.2);
}
.theme-toggle svg { width: 18px; height: 18px; }

/* ========== 通用组件 ========== */
.container { max-width: 980px; margin: 0 auto; padding: 0 22px; }
.section { padding: 100px 0; position: relative; }

.section-tag {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 0.7rem;
  font-weight: 600;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--green-dark);
  margin-bottom: 10px;
  background: linear-gradient(90deg, rgba(26,94,31,0.08), transparent);
  padding: 4px 12px;
  border-radius: 20px;
  border: 1px solid var(--silver-light);
}
.section-tag::before {
  content: '';
  width: 6px; height: 6px;
  background: var(--accent);
  border-radius: 50%;
  display: inline-block;
}
.section-header {
  text-align: center;
  margin-bottom: 56px;
}
.section-title {
  font-size: clamp(2rem, 4vw, 3rem);
  font-weight: 700;
  letter-spacing: -0.02em;
  color: var(--text-primary);
  line-height: 1.1;
  margin-bottom: 12px;
  position: relative;
  display: inline-block;
}
.section-title::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 50%;
  transform: translateX(-50%);
  width: 60px;
  height: 3px;
  border-radius: 2px;
  background: linear-gradient(90deg, #FF6B6B, #FFE66D, #4ECDC4, #45B7D1, #96CEB4);
}
.section-desc {
  font-size: 1.05rem;
  color: var(--text-secondary);
  max-width: 520px;
  margin: 0 auto;
  line-height: 1.6;
}

/* 按钮 */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 10px 20px;
  border-radius: 980px;
  font-size: 0.88rem;
  font-weight: 500;
  transition: var(--transition);
  letter-spacing: 0.01em;
}
.btn-primary {
  background: var(--accent);
  color: #fff;
  border: 1px solid var(--silver);
}
.btn-primary:hover { background: var(--accent-hover); transform: scale(1.03); }
.btn-secondary {
  background: var(--bg-card);
  color: var(--text-primary);
  border: 1px solid var(--silver);
}
.btn-secondary:hover {
  background: var(--bg-card-hover);
  border-color: var(--silver);
}
.btn-ghost {
  color: var(--accent);
  padding: 4px 0;
  background: none;
}
.btn-ghost:hover { text-decoration: underline; }
.btn-outline {
  background: transparent;
  color: var(--text-primary);
  border: 2px solid var(--accent);
}
.btn-outline:hover {
  background: var(--accent);
  color: #fff;
}

/* 卡片玻璃效果 */
.glass-card {
  background: var(--bg-card);
  border: 1px solid var(--silver-light);
  border-radius: var(--radius);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  transition: var(--transition);
}
.glass-card:hover {
  background: var(--bg-card-hover);
  border-color: var(--silver);
  transform: translateY(-2px);
  box-shadow: 0 8px 32px rgba(0,0,0,0.06), inset 0 1px 0 rgba(255,255,255,0.05);
}

/* 滚动动画 */
.fade-in {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.8s ease, transform 0.8s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}
.fade-in.visible {
  opacity: 1;
  transform: translateY(0);
}
.fade-in-left {
  opacity: 0;
  transform: translateX(-40px);
  transition: opacity 0.8s ease, transform 0.8s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}
.fade-in-left.visible {
  opacity: 1;
  transform: translateX(0);
}
.fade-in-right {
  opacity: 0;
  transform: translateX(40px);
  transition: opacity 0.8s ease, transform 0.8s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}
.fade-in-right.visible {
  opacity: 1;
  transform: translateX(0);
}
.scale-in {
  opacity: 0;
  transform: scale(0.95);
  transition: opacity 0.6s ease, transform 0.6s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}
.scale-in.visible {
  opacity: 1;
  transform: scale(1);
}

/* ========== 英雄区 ========== */
.hero {
  min-height: calc(100vh - var(--nav-height));
  min-height: calc(100dvh - var(--nav-height));
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 120px 22px 80px;
  position: relative;
  overflow: hidden;
  background: linear-gradient(180deg, var(--bg) 0%, var(--bg-secondary) 100%);
}
.hero-bg {
  position: absolute; inset: 0;
  background: radial-gradient(ellipse 80% 60% at 50% 40%, rgba(26,94,31,0.06) 0%, transparent 60%);
  pointer-events: none;
}
[data-theme="dark"] .hero-bg {
  background: radial-gradient(ellipse 80% 60% at 50% 40%, rgba(76,217,100,0.08) 0%, transparent 60%);
}
.hero-content { position: relative; z-index: 1; max-width: 800px; }
.hero-title {
  font-size: clamp(2.8rem, 8vw, 5.5rem);
  font-weight: 700;
  letter-spacing: -0.04em;
  line-height: 1.05;
  margin-bottom: 20px;
  background: linear-gradient(135deg, var(--text-primary) 0%, var(--text-secondary) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  position: relative;
}
.hero-title::after {
  content: '智领未来，创想无限';
  position: absolute;
  top: 0; left: 0;
  width: 100%; height: 100%;
  background: linear-gradient(90deg, #FF6B6B, #FFE66D, #4ECDC4, #45B7D1, #96CEB4);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  opacity: 0;
  animation: heroRainbowShift 6s ease-in-out infinite;
}
@keyframes heroRainbowShift {
  0%, 100% { opacity: 0; }
  50% { opacity: 0.15; }
}
.hero-subtitle {
  font-size: clamp(1rem, 2vw, 1.3rem);
  color: var(--text-secondary);
  line-height: 1.6;
  max-width: 560px;
  margin: 0 auto 40px;
  font-weight: 400;
}
.hero-stats {
  display: flex;
  gap: 48px;
  justify-content: center;
  flex-wrap: wrap;
}
.stat-item { display: flex; flex-direction: column; align-items: center; gap: 4px; }
.stat-number {
  font-size: 2.2rem;
  font-weight: 700;
  color: var(--accent);
  letter-spacing: -0.02em;
}
.stat-label { font-size: 0.8rem; color: var(--text-muted); letter-spacing: 0.02em; }
.scroll-indicator {
  position: absolute;
  bottom: 40px;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 3px;
  color: var(--accent);
  animation: bounce 1.8s infinite;
}
.scroll-indicator-text {
  font-size: 0.85rem;
  font-weight: 600;
  letter-spacing: 0.18em;
  color: var(--text-secondary);
}
@keyframes bounce {
  0%, 100% { transform: translateY(0); opacity: 0.6; }
  50% { transform: translateY(10px); opacity: 1; }
}

/* ========== 创意装饰 ========== */
@keyframes float {
  0%, 100% { transform: translateY(0) rotate(0deg); }
  33% { transform: translateY(-12px) rotate(4deg); }
  66% { transform: translateY(6px) rotate(-2deg); }
}
@keyframes floatSlow {
  0%, 100% { transform: translateY(0) scale(1); }
  50% { transform: translateY(-20px) scale(1.05); }
}
@keyframes pulse-ring {
  0% { transform: scale(0.8); opacity: 0.5; }
  50% { transform: scale(1.2); opacity: 0; }
  100% { transform: scale(0.8); opacity: 0; }
}
.hero-deco {
  position: absolute;
  pointer-events: none;
  border-radius: 50%;
  filter: blur(1px);
}
.hero-deco--1 {
  width: 300px; height: 300px;
  top: 10%; left: -5%;
  background: radial-gradient(circle, rgba(26,94,31,0.12) 0%, transparent 70%);
  animation: floatSlow 8s ease-in-out infinite;
}
.hero-deco--2 {
  width: 200px; height: 200px;
  top: 20%; right: -3%;
  background: radial-gradient(circle, rgba(48,209,88,0.1) 0%, transparent 70%);
  animation: floatSlow 6s ease-in-out infinite 1s;
}
.hero-deco--3 {
  width: 120px; height: 120px;
  bottom: 25%; left: 8%;
  background: radial-gradient(circle, rgba(26,94,31,0.08) 0%, transparent 70%);
  animation: float 7s ease-in-out infinite 2s;
}
.hero-deco--rainbow {
  width: 260px; height: 260px;
  bottom: 15%; right: 5%;
  background: conic-gradient(from 180deg, #FF6B6B33, #FFE66D33, #4ECDC433, #45B7D133, #96CEB433, #DDA0DD33, #FF6B6B33);
  animation: floatSlow 10s ease-in-out infinite 3s;
  filter: blur(2px);
}
[data-theme="dark"] .hero-deco--1 {
  background: radial-gradient(circle, rgba(76,217,100,0.12) 0%, transparent 70%);
}
[data-theme="dark"] .hero-deco--2 {
  background: radial-gradient(circle, rgba(48,209,88,0.08) 0%, transparent 70%);
}

.section-ornament {
  position: absolute;
  width: 200px; height: 200px;
  border-radius: 50%;
  pointer-events: none;
  opacity: 0.4;
}
.section-ornament--bl {
  bottom: -60px; left: -60px;
  background: radial-gradient(circle, rgba(26,94,31,0.06) 0%, transparent 70%);
}
.section-ornament--tr {
  top: -60px; right: -60px;
  background: radial-gradient(circle, rgba(48,209,88,0.05) 0%, transparent 70%);
}
[data-theme="dark"] .section-ornament--bl,
[data-theme="dark"] .section-ornament--tr { opacity: 0.25; }

/* ========== 暗色区块 ========== */
.section--dark {
  background: var(--bg-secondary);
  transition: background var(--transition-normal);
}

/* ========== 暗黑模式覆盖 ========== */
[data-theme="dark"] .product-card:hover {
  border-color: rgba(76,217,100,0.25);
  box-shadow: 0 20px 40px rgba(0,0,0,0.4);
}
[data-theme="dark"] .product-icon,
[data-theme="dark"] .feature-icon,
[data-theme="dark"] .contact-icon {
  background: rgba(76,217,100,0.1);
}
[data-theme="dark"] .team-card-avatar-placeholder {
  background: rgba(76,217,100,0.1);
}
[data-theme="dark"] .team-card:hover {
  border-color: rgba(76,217,100,0.2);
  box-shadow: 0 12px 32px rgba(0,0,0,0.4);
}
[data-theme="dark"] .brand-card:hover {
  border-color: rgba(76,217,100,0.2);
  box-shadow: 0 20px 50px rgba(0,0,0,0.4);
}
[data-theme="dark"] .brand-logo {
  background: rgba(255,255,255,0.04);
}

/* ========== 产品拼图网格 ========== */
.products-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
  grid-auto-flow: dense;
  align-items: start;
}
.product-card {
  background: var(--bg-card);
  border: 1px solid var(--silver-light);
  border-radius: 14px;
  padding: 20px 22px;
  text-align: left;
  transition: var(--transition);
  display: flex;
  flex-direction: row;
  align-items: flex-start;
  gap: 16px;
  position: relative;
  overflow: hidden;
  cursor: pointer;
  align-self: start;
}
/* 每张卡片不同圆角，增强拼图感 */
.product-card:nth-child(4n+1) { border-radius: 18px 8px 16px 10px; }
.product-card:nth-child(4n+2) { border-radius: 8px 16px 10px 18px; }
.product-card:nth-child(4n+3) { border-radius: 16px 10px 18px 8px; }
.product-card:nth-child(4n+4) { border-radius: 10px 18px 8px 16px; }
.product-card::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 3px;
  background: linear-gradient(90deg, #FF6B6B, #FFE66D, #4ECDC4, #45B7D1);
  opacity: 0;
  transition: opacity var(--transition-fast);
}
.product-card:hover::before { opacity: 1; }
.product-card:hover {
  background: var(--bg-card-hover);
  border-color: rgba(26,94,31,0.2);
  transform: translateY(-4px);
  box-shadow: 0 20px 50px rgba(0,0,0,0.08), 0 0 0 1px rgba(26,94,31,0.05);
}
/* 跨2列的拼图卡 */
.puzzle-col--2 { grid-column: span 2; }
.puzzle-col--2 .product-img-wrap { width: 88px; height: 88px; }
.puzzle-col--2 .product-img { width: 88px; height: 88px; }
.puzzle-col--2 .product-icon { width: 88px; height: 88px; font-size: 2rem; }
.puzzle-col--2 h3 { font-size: 1.05rem; }
.puzzle-col--2 p { font-size: 0.85rem; }
.product-img-wrap {
  width: 64px; height: 64px;
  flex-shrink: 0;
  border-radius: var(--radius-sm);
  background: var(--bg-secondary);
  overflow: hidden;
}
.product-img {
  width: 64px; height: 64px;
  object-fit: cover;
  border-radius: var(--radius-sm);
  display: block;
}
.product-icon {
  width: 64px; height: 64px;
  background: linear-gradient(135deg, rgba(26,94,31,0.08), rgba(48,209,88,0.08));
  border-radius: var(--radius-sm);
  display: flex; align-items: center; justify-content: center;
  color: var(--accent);
  flex-shrink: 0;
  font-size: 1.6rem;
}
.product-card-content {
  flex: 1; min-width: 0;
  display: flex; flex-direction: column; gap: 3px;
}
.product-card h3 {
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--text-primary);
  line-height: 1.3;
}
.product-card p {
  color: var(--text-secondary);
  font-size: 0.76rem;
  line-height: 1.55;
}

/* ========== 产品链接按钮 ========== */
.product-links {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-top: 10px;
  justify-content: center;
}
.product-link-btn {
  display: inline-block;
  padding: 3px 10px;
  font-size: 0.7rem;
  font-weight: 500;
  border-radius: 12px;
  text-decoration: none;
  transition: var(--transition-fast);
  background: rgba(26,94,31,0.08);
  color: var(--accent);
  border: 1px solid rgba(26,94,31,0.15);
}
.product-link-btn:hover {
  background: var(--accent);
  color: #fff;
  transform: translateY(-1px);
}
.product-link-btn.primary {
  background: var(--accent);
  color: #fff;
}
.product-link-btn.primary:hover {
  background: var(--accent-hover);
}

/* ========== 媒体类型徽标 ========== */
.video-type-badge {
  display: inline-block;
  padding: 2px 8px;
  font-size: 0.7rem;
  font-weight: 600;
  border-radius: 10px;
  text-transform: uppercase;
  letter-spacing: 0.03em;
  background: rgba(26,94,31,0.1);
  color: var(--accent);
}

/* ========== 团队成员 ========== */
.team-grid { margin-bottom: 32px; }
.team-department { margin-bottom: 56px; }
.team-dept-title {
  font-size: 1.5rem;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 20px;
  letter-spacing: -0.02em;
  padding-left: 4px;
  border-left: 3px solid var(--accent);
  padding-left: 12px;
}
.team-list {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
}
.team-card {
  width: 155px;
  flex-shrink: 0;
  background: var(--bg-card);
  border: 1px solid var(--silver-light);
  border-radius: var(--radius-sm);
  padding: 18px 12px 14px;
  text-align: center;
  transition: var(--transition);
  display: flex;
  flex-direction: column;
  align-items: center;
  position: relative;
}
.team-card::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 3px;
  border-radius: var(--radius-sm) var(--radius-sm) 0 0;
  background: linear-gradient(90deg, #FF6B6B, #FFE66D, #4ECDC4, #45B7D1, #96CEB4);
  background-size: 200% 100%;
  animation: rainbowShift 4s linear infinite;
}
.team-card:hover {
  background: var(--bg-card-hover);
  transform: translateY(-3px);
  box-shadow: 0 12px 32px rgba(0,0,0,0.06);
}
.team-card-avatar, .team-card-avatar-placeholder {
  width: 56px; height: 56px;
  border-radius: 50%;
  overflow: hidden;
  margin-bottom: 10px;
  flex-shrink: 0;
  background: rgba(26,94,31,0.08);
}
.team-card-avatar img { width: 100%; height: 100%; object-fit: cover; }
.team-card-avatar-placeholder {
  display: flex; align-items: center; justify-content: center;
  font-size: 1.3rem; font-weight: 600; color: var(--accent);
}
.team-card-name {
  font-size: 0.85rem;
  font-weight: 600;
  background: linear-gradient(90deg, #FF6B6B, #FFE66D, #4ECDC4, #45B7D1, #96CEB4, #DDA0DD, #FF6B6B);
  background-size: 200% auto;
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  animation: rainbowShift 4s linear infinite;
  margin-bottom: 2px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  width: 100%;
}
.team-card-position {
  font-size: 0.72rem;
  color: var(--text-secondary);
  margin-bottom: 6px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  width: 100%;
}
.team-card-bio {
  font-size: 0.68rem;
  color: var(--text-muted);
  line-height: 1.4;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
  width: 100%;
}

/* ========== 团队走马灯 ========== */
.team-marquee-wrap {
  display: flex;
  flex-direction: column;
  gap: 14px;
  margin-top: 20px;
  overflow: hidden;
}
.team-marquee-row {
  display: flex;
  gap: 14px;
  overflow: hidden;
  position: relative;
}
.team-marquee-track {
  display: flex;
  gap: 14px;
  flex-shrink: 0;
  will-change: transform;
  /* transform 由 JS requestAnimationFrame 驱动 */
}
.team-marquee-track .team-card {
  flex-shrink: 0;
}

/* 员工列表模态框 */
.team-modal-dept { margin-bottom: 20px; }
.team-modal-dept-title {
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--accent);
  margin-bottom: 10px;
  padding-bottom: 6px;
  border-bottom: 1px solid var(--silver-light);
}
.team-modal-list {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}
.team-modal-list .team-card { width: 140px; }

/* ========== 旗下服务 ========== */
.brands-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
  gap: 20px;
}
.brand-card {
  background: var(--bg-card);
  border: 1px solid var(--silver-light);
  border-radius: var(--radius);
  padding: 32px 24px 28px;
  text-align: center;
  transition: var(--transition);
  display: flex;
  flex-direction: column;
  align-items: center;
  position: relative;
  overflow: hidden;
  text-decoration: none;
  gap: 4px;
}
.brand-desc {
  font-size: 0.75rem;
  color: var(--text-muted);
  line-height: 1.45;
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
  margin-top: 4px;
}
.brand-card::after {
  content: '';
  position: absolute;
  bottom: 0; left: 50%;
  transform: translateX(-50%);
  width: 40px; height: 3px;
  background: linear-gradient(90deg, var(--accent), var(--green));
  border-radius: 3px;
  transition: width var(--transition-fast);
}
.brand-card:hover::after { width: 80px; }
.brand-card:hover {
  background: var(--bg-card-hover);
  border-color: var(--silver);
  transform: translateY(-4px);
  box-shadow: 0 20px 50px rgba(0,0,0,0.08);
}
.brand-logo {
  width: 72px; height: 72px;
  object-fit: contain;
  border-radius: var(--radius-sm);
  margin-bottom: 14px;
  background: var(--bg-secondary);
  padding: 10px;
}
.brand-name {
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--text-primary);
  letter-spacing: -0.01em;
}

/* ========== 合作伙伴 ========== */
.partners-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(140px, 1fr));
  gap: 14px;
}
.partner-card {
  background: var(--bg-card);
  border: 1px solid var(--silver-light);
  border-radius: var(--radius-sm);
  padding: 20px 14px 16px;
  text-align: center;
  transition: var(--transition);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 10px;
}
.partner-card:hover {
  background: var(--bg-card-hover);
  border-color: var(--silver);
  transform: translateY(-2px);
}
.partner-logo {
  width: 52px; height: 52px;
  object-fit: contain;
  border-radius: var(--radius-xs);
}
.partner-card h3 {
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--text-primary);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  width: 100%;
}
.partner-card a {
  font-size: 0.72rem;
  color: var(--accent);
}
.partner-card a:hover { text-decoration: underline; }

/* ========== 关于我们 ========== */
.about-content {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: center;
}
.about-image-glass {
  width: 100%;
  background: var(--bg-card);
  border: 1px solid var(--silver-light);
  border-radius: var(--radius);
  overflow: hidden;
  aspect-ratio: 4/3;
}
.about-text .section-tag { text-align: left; }
.about-text .section-title { text-align: left; margin-bottom: 16px; }
.about-desc {
  font-size: 1rem;
  color: var(--text-secondary);
  line-height: 1.8;
  margin-bottom: 32px;
}
.about-features { display: flex; flex-direction: column; gap: 20px; }
.feature-item { display: flex; gap: 16px; align-items: flex-start; }
.feature-icon {
  width: 40px; height: 40px;
  background: rgba(26,94,31,0.08);
  border: 1px solid var(--silver-light);
  border-radius: var(--radius-xs);
  display: flex; align-items: center; justify-content: center;
  color: var(--accent);
  flex-shrink: 0;
}
.feature-text h4 {
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 2px;
}
.feature-text p { font-size: 0.8rem; color: var(--text-secondary); }
.about-image { display: flex; justify-content: center; }
.glass-card.about.card {
  padding: 0;
  overflow: hidden;
  aspect-ratio: 4/3;
}
.about-image-inner { width: 100%; height: 100%; }
.about-illustration { width: 100%; height: 100%; }

/* ========== 新闻资讯 ========== */
.news-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  gap: 24px;
}
.news-card {
  background: var(--bg-card);
  border: 1px solid var(--silver-light);
  border-radius: var(--radius);
  overflow: hidden;
  transition: var(--transition);
  cursor: pointer;
}
.news-card:hover {
  background: var(--bg-card-hover);
  border-color: var(--silver);
  transform: translateY(-4px);
  box-shadow: 0 20px 50px rgba(0,0,0,0.08);
}
.news-cover {
  width: 100%;
  height: 160px;
  object-fit: cover;
  border-bottom: 1px solid var(--silver-light);
}
.news-body { padding: 18px 20px; }
.news-title {
  font-size: 1rem;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 6px;
  line-height: 1.4;
  letter-spacing: -0.01em;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.news-summary {
  font-size: 0.82rem;
  color: var(--text-secondary);
  line-height: 1.55;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
  margin-bottom: 12px;
}
.news-footer {
  display: flex;
  justify-content: space-between;
  align-items: center;
}
.news-date { font-size: 0.72rem; color: var(--text-muted); }
.news-read-more {
  font-size: 0.78rem;
  color: var(--accent);
  font-weight: 500;
  transition: var(--transition);
}
.news-card:hover .news-read-more { color: var(--accent-hover); }

/* ========== 视频区域 ========== */
.videos-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 20px;
}
.video-card {
  background: var(--bg-card);
  border: 1px solid var(--silver-light);
  border-radius: var(--radius);
  overflow: hidden;
  transition: var(--transition);
  cursor: pointer;
}
.video-card:hover {
  background: var(--bg-card-hover);
  border-color: var(--silver);
  transform: translateY(-4px);
  box-shadow: 0 20px 50px rgba(0,0,0,0.08);
}
.video-thumb-wrap {
  position: relative;
  width: 100%;
  aspect-ratio: 16/9;
  overflow: hidden;
  background: var(--bg-secondary);
}
.video-thumb {
  width: 100%; height: 100%;
  object-fit: cover;
  transition: transform 0.6s ease;
}
.video-card:hover .video-thumb { transform: scale(1.05); }
.video-play-btn {
  position: absolute;
  top: 50%; left: 50%;
  transform: translate(-50%, -50%);
  width: 52px; height: 52px;
  background: rgba(0,0,0,0.5);
  border: 2px solid rgba(255,255,255,0.3);
  border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  color: #fff;
  transition: var(--transition);
  backdrop-filter: blur(8px);
}
.video-card:hover .video-play-btn {
  background: var(--accent);
  border-color: var(--accent);
  transform: translate(-50%, -50%) scale(1.1);
}
.video-body { padding: 16px 18px; }
.video-body h3 {
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 4px;
  letter-spacing: -0.01em;
}
.video-body p {
  font-size: 0.78rem;
  color: var(--text-secondary);
  line-height: 1.5;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.video-category {
  display: inline-block;
  font-size: 0.68rem;
  color: var(--accent);
  margin-bottom: 6px;
}
.video-play-icon {
  position: absolute;
  top: 50%; left: 50%;
  transform: translate(-50%, -50%);
  width: 48px; height: 48px;
  background: rgba(0,0,0,0.55);
  border: 2px solid rgba(255,255,255,0.25);
  border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  color: #fff;
  font-size: 1rem;
  transition: var(--transition);
  backdrop-filter: blur(8px);
  pointer-events: none;
}
.video-card:hover .video-play-icon {
  background: var(--accent);
  border-color: var(--accent);
  transform: translate(-50%, -50%) scale(1.1);
}
.video-info { padding: 14px 16px; }
.video-title {
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 4px;
  letter-spacing: -0.01em;
}
.video-desc {
  font-size: 0.78rem;
  color: var(--text-secondary);
  line-height: 1.5;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.video-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.92);
  z-index: 2000;
  display: flex;
  align-items: center;
  justify-content: center;
  animation: fadeIn 0.2s ease;
}
.video-player-wrap {
  position: relative;
  width: 85%;
  max-width: 1100px;
  background: #000;
  border-radius: 12px;
  overflow: hidden;
  box-shadow: 0 30px 80px rgba(0,0,0,0.6);
}
.video-close-btn {
  position: absolute;
  top: -40px; right: 0;
  background: none;
  border: none;
  color: rgba(255,255,255,0.7);
  font-size: 1.4rem;
  cursor: pointer;
  transition: color 0.2s;
  padding: 4px 8px;
}
.video-close-btn:hover { color: #fff; }
@keyframes fadeIn { from { opacity: 0; } to { opacity: 1; } }

/* ========== 联系我们 ========== */
.contact-wrapper {
  display: grid;
  grid-template-columns: 1fr 1.2fr;
  gap: 24px;
  align-items: start;
}
.contact-item {
  display: flex;
  gap: 14px;
  align-items: flex-start;
  margin-bottom: 20px;
}
.contact-icon {
  width: 38px; height: 38px;
  background: rgba(26,94,31,0.08);
  border-radius: var(--radius-xs);
  display: flex; align-items: center; justify-content: center;
  color: var(--accent);
  flex-shrink: 0;
}
.contact-item h4 { font-size: 0.85rem; font-weight: 600; color: var(--text-primary); margin-bottom: 2px; }
.contact-item p { font-size: 0.82rem; color: var(--text-secondary); }
.contact-form { padding: 28px; }
.form-group { margin-bottom: 16px; }
.form-group label {
  display: block;
  font-size: 0.78rem;
  font-weight: 500;
  color: var(--text-secondary);
  margin-bottom: 6px;
}
.form-group input, .form-group textarea {
  width: 100%;
  background: var(--form-input-bg);
  border: 1px solid var(--silver-light);
  border-radius: var(--radius-xs);
  padding: 10px 14px;
  color: var(--text-primary);
  font-size: 0.88rem;
  transition: var(--transition-fast);
  outline: none;
}
.form-group input:focus, .form-group textarea:focus {
  border-color: var(--accent);
  background: var(--form-input-focus-bg);
  box-shadow: 0 0 0 3px rgba(76,217,100,0.08);
}
.form-group textarea { resize: vertical; min-height: 100px; }

/* 文件上传 */
.file-upload-wrap { position: relative; }
.file-upload-input { position: absolute; inset: 0; opacity: 0; cursor: pointer; z-index: 1; }
.file-upload-label {
  display: flex; align-items: center; gap: 8px;
  padding: 10px 14px;
  background: var(--form-input-bg);
  border: 1px dashed var(--silver-light);
  border-radius: var(--radius-sm);
  color: var(--text-secondary);
  font-size: 0.82rem;
  cursor: pointer;
  transition: var(--transition-fast);
}
.file-upload-label:hover { border-color: var(--accent); color: var(--accent); }
.file-upload-name { display: block; font-size: 0.78rem; color: var(--accent); margin-top: 4px; }

.btn-submit {
  width: 100%;
  padding: 12px;
  background: var(--accent);
  color: #fff;
  border: none;
  border-radius: var(--radius-xs);
  font-size: 0.9rem;
  font-weight: 500;
  cursor: pointer;
  transition: var(--transition);
}
.btn-submit:hover { background: var(--accent-hover); transform: translateY(-1px); }

/* ========== 页脚 ========== */
.footer {
  background: var(--footer-bg);
  border-top: 2px solid transparent;
  border-image: linear-gradient(90deg, transparent, var(--silver), #FF6B6B, #FFE66D, #4ECDC4, #45B7D1, #96CEB4, transparent) 1;
  padding: 56px 0 24px;
  margin-top: 40px;
}
.footer-content {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 40px;
  margin-bottom: 40px;
}
.footer-logo-img { height: 20px; margin-bottom: 12px; }
.footer-desc { font-size: 0.82rem; color: var(--text-muted); margin-bottom: 16px; }
.footer-section h4 {
  font-size: 0.78rem;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 14px;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}
.footer-links { list-style: none; }
.footer-links li { margin-bottom: 8px; }
.footer-links a { font-size: 0.8rem; color: var(--text-secondary); transition: var(--transition-fast); }
.footer-links a:hover { color: var(--text-primary); }
.footer-links li:not(:last-child) a { display: block; }
.social-links { display: flex; gap: 10px; }
.social-link {
  width: 32px; height: 32px;
  background: var(--bg-card);
  border: 1px solid var(--silver-light);
  border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  color: var(--text-secondary);
  transition: var(--transition-fast);
}
.social-link:hover { background: var(--accent); color: #fff; border-color: var(--accent); }
.footer-bottom {
  border-top: 1px solid var(--silver-light);
  padding-top: 20px;
  text-align: center;
  font-size: 0.75rem;
  color: var(--text-muted);
}
.footer-bottom a { color: var(--accent); }

/* ========== 返回顶部 ========== */
.back-to-top {
  position: fixed;
  bottom: 28px; right: 28px;
  width: 40px; height: 40px;
  background: var(--bg-card);
  border: 1px solid var(--silver-light);
  border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  color: var(--text-secondary);
  opacity: 0;
  transform: translateY(16px);
  transition: var(--transition);
  z-index: 900;
  backdrop-filter: blur(10px);
}
.back-to-top.show, .back-to-top.visible { opacity: 1; transform: translateY(0); }
.back-to-top:hover { background: var(--accent); color: #fff; border-color: var(--accent); }

/* ========== 模态框（通用） ========== */
.modal {
  display: none;
  position: fixed; inset: 0;
  background: var(--modal-overlay);
  backdrop-filter: blur(8px);
  z-index: 2000;
  align-items: center;
  justify-content: center;
  padding: 20px;
}
.modal.show { display: flex; }
.modal-content {
  background: var(--modal-bg);
  border: 1px solid var(--silver);
  border-radius: var(--radius);
  width: 100%;
  max-width: 480px;
  max-height: 90vh;
  overflow-y: auto;
  animation: modalIn 0.3s ease;
}
.modal-lg { max-width: 720px; }
@keyframes modalIn {
  from { opacity: 0; transform: scale(0.95) translateY(20px); }
  to { opacity: 1; transform: scale(1) translateY(0); }
}
.modal-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 20px 24px 0;
}
.modal-header h3 { font-size: 1.1rem; font-weight: 600; color: var(--text-primary); }
.modal-close {
  width: 28px; height: 28px;
  background: var(--bg-card);
  border: none; border-radius: 50%;
  color: var(--text-secondary);
  display: flex; align-items: center; justify-content: center;
  cursor: pointer;
  transition: var(--transition-fast);
}
.modal-close:hover { background: var(--bg-card-hover); color: var(--text-primary); }
.modal-body { padding: 20px 24px; }
.modal-footer {
  display: flex; gap: 10px; justify-content: flex-end;
  padding: 0 24px 20px;
}
.modal-footer .btn { min-width: 80px; justify-content: center; }

/* ========== 登录/注册模态框 ========== */
.auth-modal {
  display: none;
  position: fixed; inset: 0;
  background: var(--modal-overlay);
  backdrop-filter: blur(8px);
  z-index: 2000;
  align-items: center;
  justify-content: center;
  padding: 20px;
}
.auth-modal.show { display: flex; }
.auth-modal-content {
  background: var(--modal-bg);
  border: 1px solid var(--silver);
  border-radius: var(--radius);
  width: 100%;
  max-width: 400px;
  max-height: 90vh;
  overflow-y: auto;
  animation: modalIn 0.3s ease;
  position: relative;
  padding: 36px 28px 28px;
}
.auth-modal-close {
  position: absolute;
  top: 16px; right: 16px;
  width: 28px; height: 28px;
  background: var(--bg-card);
  border: none; border-radius: 50%;
  color: var(--text-secondary);
  display: flex; align-items: center; justify-content: center;
  cursor: pointer;
  transition: var(--transition-fast);
}
.auth-modal-close:hover { background: var(--bg-card-hover); color: var(--text-primary); }
.auth-form-view { display: none; }
.auth-form-view.active { display: block; }
.auth-maintenance-view {
  text-align: center;
  padding: 32px 24px;
}
.auth-maintenance-icon {
  width: 72px;
  height: 72px;
  margin: 0 auto 20px;
  border-radius: 50%;
  background: rgba(99,102,241,0.1);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--accent-primary, #6366f1);
}
.auth-maintenance-view h2 {
  font-size: 1.4rem;
  font-weight: 700;
  margin-bottom: 12px;
  color: var(--text-primary);
}
.auth-maintenance-view p {
  font-size: 0.95rem;
  color: var(--text-secondary);
  line-height: 1.7;
  margin: 0 0 8px;
}
.auth-maintenance-note {
  font-size: 0.85rem !important;
  color: var(--text-muted) !important;
  margin-top: 16px !important;
}
.auth-header {
  text-align: center;
  margin-bottom: 24px;
}
.auth-header h2 {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 6px;
  letter-spacing: -0.02em;
}
.auth-header p {
  font-size: 0.88rem;
  color: var(--text-secondary);
}
.auth-field {
  margin-bottom: 14px;
}
.auth-field label {
  display: block;
  font-size: 0.78rem;
  font-weight: 500;
  color: var(--text-secondary);
  margin-bottom: 5px;
}
.auth-field input {
  width: 100%;
  background: var(--form-input-bg);
  border: 1px solid var(--silver-light);
  border-radius: var(--radius-xs);
  padding: 10px 14px;
  color: var(--text-primary);
  font-size: 0.88rem;
  transition: var(--transition-fast);
  outline: none;
}
.auth-field input:focus {
  border-color: var(--accent);
  background: var(--form-input-focus-bg);
}
.auth-field input::placeholder { color: var(--text-muted); }
.auth-submit-btn {
  width: 100%;
  padding: 11px;
  background: var(--accent);
  color: #fff;
  border: none;
  border-radius: var(--radius-xs);
  font-size: 0.9rem;
  font-weight: 500;
  cursor: pointer;
  transition: var(--transition);
  margin-top: 4px;
}
.auth-submit-btn:hover { background: var(--accent-hover); }
.auth-submit-btn:disabled { opacity: 0.6; cursor: not-allowed; }
.auth-switch {
  text-align: center;
  margin-top: 16px;
  font-size: 0.82rem;
  color: var(--text-secondary);
}
.auth-switch a { color: var(--accent); cursor: pointer; }
.auth-switch a:hover { text-decoration: underline; }

/* ========== Toast ========== */
.toast-container {
  position: fixed;
  top: 60px; right: 20px;
  z-index: 3000;
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.toast {
  padding: 12px 18px;
  border-radius: var(--radius-xs);
  font-size: 0.85rem;
  font-weight: 500;
  animation: toastIn 0.3s ease;
  backdrop-filter: blur(20px);
  border: 1px solid var(--silver-light);
}
.toast.success { background: rgba(48,209,88,0.12); color: var(--green-dark); border-color: rgba(48,209,88,0.25); }
.toast.error { background: rgba(255,59,48,0.12); color: #ff453a; border-color: rgba(255,59,48,0.25); }
.toast.info { background: rgba(26,94,31,0.12); color: var(--accent); border-color: rgba(26,94,31,0.25); }
@keyframes toastIn {
  from { opacity: 0; transform: translateX(20px); }
  to { opacity: 1; transform: translateX(0); }
}

/* ========== 空状态 ========== */
.empty-state {
  text-align: center;
  padding: 60px 20px;
  color: var(--text-muted);
  font-size: 0.9rem;
}

/* ========== 导航栏右侧按钮 ========== */
.nav-right {
  display: flex;
  align-items: center;
  gap: 10px;
}
.nav-auth-btn {
  font-size: 0.82rem;
  padding: 5px 14px;
  border-radius: 980px;
  color: var(--text-secondary);
  transition: var(--transition-fast);
  border: 1px solid var(--silver-light);
  background: var(--bg-card);
  font-weight: 500;
}
.nav-auth-btn:hover {
  color: var(--text-primary);
  border-color: var(--silver);
  background: var(--bg-card-hover);
}
.nav-auth-btn--ghost {
  background: var(--accent);
  color: #fff;
  border-color: var(--accent);
}
.nav-auth-btn--ghost:hover {
  background: var(--accent-hover);
  border-color: var(--accent-hover);
  color: #fff;
}
.nav-logout-btn {
  font-size: 0.82rem;
  color: var(--text-secondary);
  padding: 5px 12px;
  border-radius: 980px;
  border: 1px solid var(--silver-light);
  background: var(--bg-card);
  transition: var(--transition-fast);
}
.nav-logout-btn:hover { color: var(--text-primary); border-color: var(--silver); }
.nav-user-btn {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 4px 10px 4px 4px;
  border-radius: 980px;
  border: 1px solid var(--silver-light);
  background: var(--bg-card);
  transition: var(--transition-fast);
  cursor: pointer;
}
.nav-user-btn:hover { background: var(--bg-card-hover); border-color: var(--silver); }
.user-avatar-sm {
  width: 26px; height: 26px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--accent), var(--green));
  display: flex; align-items: center; justify-content: center;
  font-size: 0.68rem; font-weight: 600; color: #fff;
  flex-shrink: 0;
}
.user-name-sm {
  font-size: 0.8rem;
  color: var(--text-secondary);
  font-weight: 500;
  max-width: 80px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

/* ========== 用户中心 ========== */
.user-page-body {
  min-height: 100vh;
  background: var(--bg);
  padding-top: var(--nav-height);
}
.user-main {
  padding: 60px 0 80px;
  min-height: calc(100vh - var(--nav-height));
}
.user-page-header {
  text-align: center;
  margin-bottom: 40px;
}
.user-page-title {
  font-size: 2rem;
  font-weight: 700;
  color: var(--text-primary);
  letter-spacing: -0.02em;
  margin-bottom: 6px;
}
.user-page-desc {
  font-size: 0.95rem;
  color: var(--text-secondary);
}
.user-loading {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 16px;
  padding: 80px 0;
}
.user-spinner {
  width: 32px; height: 32px;
  border: 3px solid var(--silver-light);
  border-top-color: var(--accent);
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
}
@keyframes spin { to { transform: rotate(360deg); } }
.user-loading p { color: var(--text-muted); font-size: 0.88rem; }
.user-profile-card {
  max-width: 520px;
  margin: 0 auto;
  background: var(--bg-card);
  border: 1px solid var(--silver);
  border-radius: var(--radius);
  padding: 36px 32px;
}
.user-profile-header {
  display: flex;
  align-items: center;
  gap: 20px;
  margin-bottom: 24px;
}
.user-avatar-lg {
  width: 72px; height: 72px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--accent), var(--green));
  display: flex; align-items: center; justify-content: center;
  font-size: 1.8rem; font-weight: 700; color: #fff;
  flex-shrink: 0;
}
.user-nickname {
  font-size: 1.3rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 2px;
  letter-spacing: -0.01em;
}
.user-username {
  font-size: 0.88rem;
  color: var(--text-secondary);
  margin-bottom: 2px;
}
.user-register-date {
  font-size: 0.75rem;
  color: var(--text-muted);
}
.user-profile-divider {
  height: 1px;
  background: var(--silver-light);
  margin: 0 -4px 20px;
}
.user-profile-details { display: flex; flex-direction: column; gap: 0; }
.user-detail-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 12px 4px;
  border-bottom: 1px solid var(--silver-light);
}
.user-detail-row:last-child { border-bottom: none; }
.user-detail-label {
  font-size: 0.85rem;
  color: var(--text-muted);
}
.user-detail-value {
  font-size: 0.85rem;
  color: var(--text-primary);
  font-weight: 500;
}
.user-error {
  display: none;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 16px;
  padding: 80px 0;
  text-align: center;
}
.user-error-icon svg { color: var(--text-muted); }
.user-error h3 { font-size: 1.2rem; color: var(--text-primary); }
.user-error p { color: var(--text-secondary); font-size: 0.9rem; margin-bottom: 8px; }

/* ========== 响应式 ========== */
@media (max-width: 768px) {
  .nav-menu { display: none; }
  .menu-toggle { display: flex; flex-direction: column; gap: 4px; }
  /* 暂时隐藏手机端右上角导航页入口（首页改为让用户下滑自行探索）；用户中心保留该按钮。
     恢复首页按钮：删除下面这一条即可。 */
  body:not(.user-page-body) .menu-toggle { display: none; }
  .nav-menu.active {
    display: flex;
    flex-direction: column;
    position: absolute;
    top: var(--nav-height);
    left: 0; right: 0;
    background: var(--nav-bg);
    backdrop-filter: saturate(180%) blur(20px);
    -webkit-backdrop-filter: saturate(180%) blur(20px);
    padding: 16px 24px;
    gap: 4px;
    border-bottom: 1px solid var(--silver-light);
    box-shadow: 0 8px 32px rgba(0,0,0,0.12);
    z-index: 999;
  }
  .nav-menu.active .nav-dropdown { width: 100%; }
  .nav-menu.active .nav-link { padding: 12px 8px; font-size: 0.9rem; }
  .nav-menu.active .nav-dropdown .nav-submenu {
    position: static;
    display: none;
    padding: 4px 0 4px 16px;
    background: transparent;
    border: none;
    box-shadow: none;
    min-width: auto;
  }
  .nav-menu.active .nav-dropdown .nav-submenu.show { display: block; }
  .nav-menu.active .nav-submenu li a { padding: 10px 8px; font-size: 0.85rem; }
  .about-content { grid-template-columns: 1fr; gap: 32px; }
  .about-text .section-tag { text-align: center; }
  .about-text .section-title { text-align: center; }
  .contact-wrapper { grid-template-columns: 1fr; }
  .footer-content { grid-template-columns: 1fr 1fr; gap: 24px; }
  .hero { padding: 100px 16px 60px; }
  .hero-title { font-size: clamp(2rem, 10vw, 3.5rem); }
  .hero-subtitle { font-size: 1rem; margin-bottom: 28px; }
  .hero-stats { gap: 20px; }
  .stat-number { font-size: 1.6rem; }
  .section { padding: 64px 0; }
  .section-header { margin-bottom: 36px; }
  .section-title { font-size: clamp(1.6rem, 5vw, 2.2rem); }
  .section-desc { font-size: 0.92rem; }
  .products-grid { grid-template-columns: repeat(2, 1fr); gap: 10px; align-items: start; }
  .product-card { padding: 14px 14px; gap: 10px; }
  .product-img-wrap { width: 48px; height: 48px; }
  .product-img { width: 48px; height: 48px; }
  .product-icon { width: 48px; height: 48px; font-size: 1.2rem; }
  .product-card h3 { font-size: 0.78rem; }
  .product-card p { font-size: 0.7rem; }
  .puzzle-col--2 { grid-column: span 2; }
  .puzzle-col--2 .product-img-wrap { width: 64px; height: 64px; }
  .puzzle-col--2 .product-img { width: 64px; height: 64px; }
  .puzzle-col--2 .product-icon { width: 64px; height: 64px; font-size: 1.6rem; }
  .puzzle-col--2 h3 { font-size: 0.88rem; }
  .puzzle-col--2 p { font-size: 0.76rem; }
  .videos-grid { grid-template-columns: 1fr; }
  .news-grid { grid-template-columns: 1fr; }
  .nav-right { gap: 6px; }
  .user-name-sm { display: none; }
  .brands-grid { grid-template-columns: repeat(2, 1fr); gap: 12px; }
  .brand-card { padding: 20px 16px; }
  .brand-logo { width: 56px; height: 56px; margin-bottom: 10px; }
  .brand-name { font-size: 0.85rem; }
  .partner-card { padding: 14px 10px; }
  .partner-logo { width: 40px; height: 40px; }
  .puzzle-banner { margin: 20px auto 0; padding: 14px 16px; }
  .puzzle-banner-text { font-size: 0.82rem; }
  .puzzle-dots { display: none; }
  .scroll-indicator { bottom: 20px; }
  .hero-deco--1 { width: 160px; height: 160px; top: 5%; left: -8%; }
  .hero-deco--2 { width: 120px; height: 120px; top: 15%; right: -5%; }
  .hero-deco--3, .hero-deco--rainbow { display: none; }
  .contact-form { padding: 18px; }
  .footer { padding: 40px 0 20px; }
  .team-marquee-wrap { gap: 10px; }
  .team-marquee-track .team-card { width: 120px; }
}
@media (max-width: 480px) {
  .container { padding: 0 16px; }
  .footer-content { grid-template-columns: 1fr; }
  .team-list { gap: 10px; }
  .team-card { width: calc(50% - 5px); min-width: 0; }
  .team-card-avatar, .team-card-avatar-placeholder { width: 44px; height: 44px; }
  .team-card-name { font-size: 0.78rem; }
  .team-card-position { font-size: 0.66rem; }
  .team-card-bio { font-size: 0.62rem; }
  .team-marquee-track .team-card { width: 100px; }
  .products-grid { grid-template-columns: 1fr; }
  .puzzle-col--2 { grid-column: span 1; }
  .brands-grid { grid-template-columns: 1fr; }
  .partners-grid { grid-template-columns: repeat(2, 1fr); }
  .nav-container { padding: 0 16px; }
  .logo-text { font-size: 0.85rem; }
  .hero { padding: 80px 16px 48px; }
  .hero-title { font-size: clamp(1.8rem, 12vw, 2.8rem); }
  .stat-number { font-size: 1.4rem; }
  .stat-label { font-size: 0.7rem; }
  .puzzle-banner { padding: 12px 14px; }
  .puzzle-banner-text { font-size: 0.78rem; }
  .contact-form { padding: 14px; }
}

/* ========== 拼图宣言横幅 ========== */
.puzzle-banner {
  max-width: 1100px;
  margin: 28px auto 0;
  padding: 18px 32px;
  border-radius: 20px 10px 22px 12px;
  background: linear-gradient(135deg, rgba(255,107,107,0.06), rgba(255,230,109,0.06), rgba(78,205,196,0.06), rgba(69,183,209,0.06));
  border: 1.5px dashed rgba(0,0,0,0.1);
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 14px;
  flex-wrap: wrap;
}
.dark .puzzle-banner {
  border-color: rgba(255,255,255,0.08);
  background: linear-gradient(135deg, rgba(255,107,107,0.08), rgba(255,230,109,0.08), rgba(78,205,196,0.08), rgba(69,183,209,0.08));
}
.puzzle-banner-text {
  font-size: 0.95rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  background: linear-gradient(90deg,
    #FF6B6B 0%,
    #FF8E53 14%,
    #FFE66D 28%,
    #4ECDC4 42%,
    #45B7D1 57%,
    #96CEB4 71%,
    #FFEAA7 85%,
    #DDA0DD 100%
  );
  background-size: 200% auto;
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  animation: rainbowShift 4s linear infinite;
}
@keyframes rainbowShift {
  to { background-position: 200% center; }
}
.puzzle-dots {
  display: flex;
  gap: 6px;
  align-items: center;
}
.puzzle-dots span {
  width: 10px; height: 10px;
  border-radius: 50%;
  background: var(--c);
  display: inline-block;
  animation: dotPulse 2s ease-in-out infinite;
}
.puzzle-dots span:nth-child(2) { animation-delay: 0.15s; }
.puzzle-dots span:nth-child(3) { animation-delay: 0.3s; }
.puzzle-dots span:nth-child(4) { animation-delay: 0.45s; }
.puzzle-dots span:nth-child(5) { animation-delay: 0.6s; }
.puzzle-dots span:nth-child(6) { animation-delay: 0.75s; }
.puzzle-dots span:nth-child(7) { animation-delay: 0.9s; }
.puzzle-dots span:nth-child(8) { animation-delay: 1.05s; }
.puzzle-dots span:nth-child(9) { animation-delay: 1.2s; }
.puzzle-dots span:nth-child(10) { animation-delay: 1.35s; }
.puzzle-dots span:nth-child(11) { animation-delay: 1.5s; }
.puzzle-dots span:nth-child(12) { animation-delay: 1.65s; }
@keyframes dotPulse {
  0%, 100% { transform: scale(1); opacity: 1; }
  50% { transform: scale(1.4); opacity: 0.7; }
}

/* ========== 首页「查看更多」 ========== */
.section-more {
  display: flex;
  justify-content: center;
  margin-top: 36px;
}

/* ========== 子页面（列表页 / 详情页） ========== */
.subpage-bar {
  position: sticky; top: 0; z-index: 100;
  background: rgba(255,255,255,0.85);
  backdrop-filter: saturate(180%) blur(20px);
  -webkit-backdrop-filter: saturate(180%) blur(20px);
  border-bottom: 1px solid var(--silver-light);
}
[data-theme="dark"] .subpage-bar { background: rgba(0,0,0,0.82); }
.subpage-bar-inner {
  max-width: 1200px; margin: 0 auto; padding: 14px 24px;
  display: flex; align-items: center; gap: 16px;
}
.subpage-logo { display: flex; align-items: center; gap: 8px; text-decoration: none; }
.subpage-logo img { height: 22px; width: auto; }
.subpage-logo span { font-size: 0.95rem; font-weight: 600; color: var(--text-primary); }
.subpage-back { margin-left: auto; font-size: 0.85rem; color: var(--text-secondary); text-decoration: none; }
.subpage-back:hover { color: var(--accent); }
.subpage-main { max-width: 1200px; margin: 0 auto; padding: 32px 24px 72px; }
.subpage-title { font-size: 1.6rem; font-weight: 700; color: var(--text-primary); margin-bottom: 6px; }
.subpage-sub { font-size: 0.9rem; color: var(--text-muted); margin-bottom: 24px; }

/* 列表页工具栏 */
.list-tabs { display: flex; gap: 8px; flex-wrap: wrap; margin-bottom: 18px; }
.list-tab {
  padding: 8px 18px; border-radius: 999px; font-size: 0.85rem;
  background: var(--bg-card); border: 1px solid var(--silver-light);
  color: var(--text-secondary); text-decoration: none; transition: var(--transition);
}
.list-tab:hover { border-color: var(--silver); color: var(--text-primary); }
.list-tab.active { background: var(--accent); border-color: var(--accent); color: #fff; }

.list-toolbar { display: flex; gap: 12px; flex-wrap: wrap; align-items: center; margin-bottom: 14px; }
.list-input, .list-select {
  background: var(--bg-card); border: 1px solid var(--silver-light);
  border-radius: 10px; padding: 10px 14px; color: var(--text-primary);
  font-size: 0.88rem; outline: none; font-family: inherit;
}
.list-input { flex: 1; min-width: 200px; }
.list-input:focus, .list-select:focus { border-color: var(--accent); }
.list-clear {
  padding: 10px 16px; border-radius: 10px; font-size: 0.85rem; cursor: pointer;
  background: var(--bg-card); border: 1px solid var(--silver-light); color: var(--text-secondary);
  font-family: inherit;
}
.list-clear:hover { color: var(--text-primary); border-color: var(--silver); }
.list-count { font-size: 0.82rem; color: var(--text-muted); margin-bottom: 18px; }
.list-range-label { font-size: 0.82rem; color: var(--text-muted); }

.list-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(300px, 1fr)); gap: 20px; }

/* 详情页 */
.article-cover {
  width: 100%; max-height: 420px; object-fit: cover;
  border-radius: var(--radius); margin-bottom: 28px; display: block;
}
.article-title { font-size: 1.8rem; font-weight: 700; line-height: 1.35; color: var(--text-primary); margin-bottom: 14px; }
.article-meta { display: flex; gap: 18px; flex-wrap: wrap; align-items: center; font-size: 0.82rem; color: var(--text-muted); margin-bottom: 28px; }
.article-content { font-size: 1rem; line-height: 1.9; color: var(--text-secondary); }
.article-content img { max-width: 100%; height: auto; border-radius: 12px; margin: 12px 0; }
.article-content p { margin-bottom: 16px; }
.article-content h2, .article-content h3 { color: var(--text-primary); margin: 24px 0 12px; }
.article-content a { color: var(--accent); }

@media (max-width: 768px) {
  .article-title { font-size: 1.35rem; }
  .subpage-main { padding: 24px 18px 56px; }
  .list-input { min-width: 140px; }
}

/* ========== 按钮修饰符（匹配 HTML 中的 btn-- 命名） ========== */
.btn--primary { background: var(--accent); color: #fff; border: 1px solid var(--silver); }
.btn--primary:hover { background: var(--accent-hover); transform: scale(1.03); }
.btn--secondary { background: var(--bg-card); color: var(--text-primary); border: 1px solid var(--silver); }
.btn--secondary:hover { background: var(--bg-card-hover); border-color: var(--silver); }
.btn--outline { background: transparent; color: var(--text-primary); border: 2px solid var(--accent); }
.btn--outline:hover { background: var(--accent); color: #fff; }
.btn--ghost { color: var(--accent); padding: 4px 0; background: none; }
.btn--ghost:hover { text-decoration: underline; }

/* ========== 新闻分类标签 ========== */
.news-category {
  display: inline-block;
  font-size: 0.7rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  color: var(--accent);
  background: var(--bg-card);
  border: 1px solid var(--silver-light);
  padding: 3px 10px;
  border-radius: 999px;
  margin-bottom: 10px;
}

/* ========== 团队板块小标题（彩色渐变字） ========== */
.strip-title {
  display: inline-block;
  font-size: 0.95rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  margin-bottom: 14px;
  background: linear-gradient(90deg,
    #FF6B6B 0%,
    #FF8E53 14%,
    #FFE66D 28%,
    #4ECDC4 42%,
    #45B7D1 57%,
    #96CEB4 71%,
    #FFEAA7 85%,
    #DDA0DD 100%
  );
  background-size: 200% auto;
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  animation: rainbowShift 4s linear infinite;
}

/* ========== 管理层展示（静态、不滚动） ========== */
.management-block {
  margin-top: 26px;
}
.management-grid {
  display: flex;
  flex-wrap: wrap;
  justify-content: flex-start;
  gap: 14px;
}
/* 移动端：管理层每行至少并排两个（卡片宽按本容器的 10px 间距计算，避免被挤成一行一个） */
@media (max-width: 480px) {
  .management-grid {
    gap: 10px;
  }
  .management-grid .team-card {
    width: calc(50% - 6px);
  }
}

/* ========== 团队板块分隔线 ========== */
.team-divider {
  height: 1px;
  background: var(--silver-light);
  margin: 28px 0 22px;
}
.team-marquee-block .team-marquee-wrap {
  margin-top: 6px;
}

/* ========== 网站进入动画（全屏影像 · 极简现代） ========== */
.intro {
  position: fixed;
  inset: 0;
  z-index: 100000;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  cursor: pointer;
  background: #05070c;
  transition: opacity 0.9s ease;
}
.intro--gone { display: none !important; }
.intro--reveal { opacity: 0; }

/* 全屏背景影像 */
.intro-bg {
  position: absolute;
  inset: -4%;
  background: url('../intro-bg.jpg?v=20261010') center center / cover no-repeat;
  opacity: 0;
  transform: scale(1.08);
  transition: opacity 1.5s ease;
  will-change: transform, opacity;
}
.intro--bg .intro-bg {
  opacity: 1;
  animation: introKen 7s cubic-bezier(0.16, 1, 0.3, 1) forwards;
}
@keyframes introKen {
  from { transform: scale(1.08); }
  to { transform: scale(1); }
}

/* 电影级压暗与暗角 */
.intro-scrim {
  position: absolute;
  inset: 0;
  pointer-events: none;
  background:
    linear-gradient(180deg,
      rgba(4, 10, 20, 0.55) 0%,
      rgba(4, 10, 20, 0.12) 22%,
      rgba(4, 10, 20, 0) 45%,
      rgba(4, 10, 20, 0.08) 62%,
      rgba(4, 10, 20, 0.70) 100%),
    radial-gradient(ellipse 55% 45% at 50% 52%, rgba(4, 10, 20, 0.2) 0%, rgba(4, 10, 20, 0) 72%);
  opacity: 0;
  transition: opacity 1.5s ease;
}
.intro--bg .intro-scrim { opacity: 1; }

/* 内容 */
.intro-inner {
  position: relative;
  z-index: 2;
  display: flex;
  flex-direction: column;
  align-items: center;
  padding: clamp(32px, 6vw, 50px) clamp(38px, 9vw, 76px);
  border-radius: 24px;
  background: rgba(10, 16, 26, 0.26);
  -webkit-backdrop-filter: blur(22px) saturate(150%);
  backdrop-filter: blur(22px) saturate(150%);
  border: 1px solid rgba(255, 255, 255, 0.18);
  box-shadow: 0 26px 64px rgba(0, 0, 0, 0.38), inset 0 1px 0 rgba(255, 255, 255, 0.16);
  opacity: 0;
  transition: opacity 1.1s ease;
}
.intro--panel .intro-inner { opacity: 1; }

.intro-logo {
  width: clamp(120px, 26vw, 170px);
  height: clamp(120px, 26vw, 170px);
  object-fit: contain;
  opacity: 0;
  transform: translateY(10px) scale(0.96);
  filter: blur(6px) drop-shadow(0 6px 24px rgba(0, 0, 0, 0.55));
  transition: opacity 1.1s ease, transform 1.2s cubic-bezier(0.16, 1, 0.3, 1), filter 1.1s ease;
}
.intro--logo .intro-logo {
  opacity: 1;
  transform: translateY(0) scale(1);
  filter: blur(0) drop-shadow(0 6px 24px rgba(0, 0, 0, 0.55));
}

.intro-name {
  margin-top: 26px;
  font-size: clamp(1.32rem, 4.4vw, 1.9rem);
  font-weight: 500;
  letter-spacing: 0.5em;
  text-indent: 0.5em;
  color: #ffffff;
  text-shadow: 0 2px 24px rgba(0, 0, 0, 0.55);
  opacity: 0;
  transform: translateY(10px);
  transition: opacity 1s ease 0.35s, transform 1s ease 0.35s;
}
.intro--name .intro-name { opacity: 1; transform: translateY(0); }

.intro-line {
  width: 0;
  height: 1px;
  margin-top: 22px;
  background: linear-gradient(90deg,
    rgba(255, 255, 255, 0) 0%,
    rgba(255, 255, 255, 0.85) 50%,
    rgba(255, 255, 255, 0) 100%);
  transition: width 1.2s cubic-bezier(0.16, 1, 0.3, 1) 0.65s;
}
.intro--line .intro-line { width: min(220px, 54vw); }

/* 动画期间锁定滚动 */
html.intro-lock,
body.intro-lock { overflow: hidden; }

@media (prefers-reduced-motion: reduce) {
  .intro { display: none !important; }
}