/* 菠萝视频官网 - 玻璃态梦幻科技风格 */
:root {
  --bg-primary: #111111;
  --bg-secondary: #1A1A1A;
  --accent-cyan: #A0F0FF;
  --accent-purple: #D8A0FF;
  --accent-warm: #F8F0E8;
  --glass-bg: rgba(255,255,255,0.06);
  --glass-border: rgba(255,255,255,0.12);
  --glass-shadow: 0 8px 32px rgba(0,0,0,0.4);
  --text-primary: #F8F0E8;
  --text-secondary: rgba(248,240,232,0.7);
  --gradient-main: linear-gradient(135deg, #A0F0FF 0%, #D8A0FF 50%, #F8F0E8 100%);
}

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

html { scroll-behavior: smooth; }

body {
  background-color: var(--bg-primary);
  color: var(--text-primary);
  font-family: 'PingFang SC', 'Microsoft YaHei', 'Helvetica Neue', Arial, sans-serif;
  line-height: 1.7;
  overflow-x: hidden;
}

/* 粒子背景 */
#particles-canvas {
  position: fixed;
  top: 0; left: 0;
  width: 100%; height: 100%;
  pointer-events: none;
  z-index: 0;
  opacity: 0.4;
}

/* 顶部导航 */
.navbar {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 1000;
  background: rgba(17,17,17,0.85);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--glass-border);
  padding: 0 5%;
  height: 70px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

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

.navbar-logo {
  width: 40px;
  height: 40px;
  border-radius: 10px;
  object-fit: cover;
}

.navbar-brand-name {
  font-size: 1.3rem;
  font-weight: 700;
  background: var(--gradient-main);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.navbar-nav {
  display: flex;
  align-items: center;
  gap: 8px;
  list-style: none;
}

.navbar-nav a {
  color: var(--text-secondary);
  text-decoration: none;
  padding: 8px 14px;
  border-radius: 8px;
  font-size: 0.9rem;
  transition: all 0.3s ease;
  white-space: nowrap;
}

.navbar-nav a:hover,
.navbar-nav a.active {
  color: var(--accent-cyan);
  background: rgba(160,240,255,0.1);
}

.navbar-toggle {
  display: none;
  background: none;
  border: none;
  color: var(--text-primary);
  font-size: 1.5rem;
  cursor: pointer;
}

/* 搜索框 */
.search-bar-wrap {
  background: rgba(26,26,26,0.9);
  backdrop-filter: blur(10px);
  padding: 16px 5%;
  margin-top: 70px;
  border-bottom: 1px solid var(--glass-border);
  display: flex;
  justify-content: center;
}

.search-bar {
  display: flex;
  align-items: center;
  width: 100%;
  max-width: 680px;
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  border-radius: 50px;
  padding: 10px 20px;
  gap: 12px;
  transition: border-color 0.3s;
}

.search-bar:focus-within {
  border-color: var(--accent-cyan);
  box-shadow: 0 0 20px rgba(160,240,255,0.15);
}

.search-bar input {
  flex: 1;
  background: none;
  border: none;
  outline: none;
  color: var(--text-primary);
  font-size: 0.95rem;
}

.search-bar input::placeholder { color: var(--text-secondary); }

.search-btn {
  background: linear-gradient(135deg, var(--accent-cyan), var(--accent-purple));
  border: none;
  border-radius: 50px;
  padding: 8px 20px;
  color: #111;
  font-weight: 600;
  cursor: pointer;
  font-size: 0.9rem;
  transition: opacity 0.3s;
}

.search-btn:hover { opacity: 0.85; }

/* 主内容区 */
main {
  position: relative;
  z-index: 1;
  padding-top: 0;
}

/* Hero Banner */
.hero {
  position: relative;
  min-height: 90vh;
  display: flex;
  align-items: center;
  overflow: hidden;
}

.hero-bg {
  position: absolute;
  inset: 0;
  background-size: cover;
  background-position: center;
  filter: brightness(0.35);
  z-index: 0;
}

.hero-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(17,17,17,0.7) 0%, rgba(160,240,255,0.05) 50%, rgba(216,160,255,0.08) 100%);
  z-index: 1;
}

.hero-content {
  position: relative;
  z-index: 2;
  padding: 0 5%;
  max-width: 900px;
}

.hero-badge {
  display: inline-block;
  background: rgba(160,240,255,0.15);
  border: 1px solid rgba(160,240,255,0.3);
  border-radius: 50px;
  padding: 6px 18px;
  font-size: 0.85rem;
  color: var(--accent-cyan);
  margin-bottom: 24px;
  letter-spacing: 0.05em;
}

.hero h1 {
  font-size: clamp(2.2rem, 5vw, 4rem);
  font-weight: 800;
  line-height: 1.2;
  margin-bottom: 20px;
  background: var(--gradient-main);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero p {
  font-size: 1.15rem;
  color: var(--text-secondary);
  margin-bottom: 36px;
  max-width: 600px;
  line-height: 1.8;
}

.hero-btns {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
}

.btn-primary {
  background: linear-gradient(135deg, var(--accent-cyan), var(--accent-purple));
  color: #111;
  border: none;
  padding: 14px 32px;
  border-radius: 50px;
  font-size: 1rem;
  font-weight: 700;
  cursor: pointer;
  text-decoration: none;
  display: inline-block;
  transition: transform 0.3s, box-shadow 0.3s;
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 30px rgba(160,240,255,0.4);
}

.btn-secondary {
  background: var(--glass-bg);
  color: var(--text-primary);
  border: 1px solid var(--glass-border);
  padding: 14px 32px;
  border-radius: 50px;
  font-size: 1rem;
  font-weight: 600;
  cursor: pointer;
  text-decoration: none;
  display: inline-block;
  backdrop-filter: blur(10px);
  transition: all 0.3s;
}

.btn-secondary:hover {
  border-color: var(--accent-purple);
  color: var(--accent-purple);
  transform: translateY(-2px);
}

/* 通用Section */
.section {
  padding: 80px 5%;
  position: relative;
  z-index: 1;
}

.section-header {
  text-align: center;
  margin-bottom: 56px;
}

.section-tag {
  display: inline-block;
  background: rgba(216,160,255,0.12);
  border: 1px solid rgba(216,160,255,0.25);
  border-radius: 50px;
  padding: 5px 16px;
  font-size: 0.8rem;
  color: var(--accent-purple);
  letter-spacing: 0.08em;
  margin-bottom: 14px;
}

.section-title {
  font-size: clamp(1.6rem, 3vw, 2.4rem);
  font-weight: 700;
  margin-bottom: 14px;
  background: var(--gradient-main);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.section-desc {
  color: var(--text-secondary);
  font-size: 1rem;
  max-width: 560px;
  margin: 0 auto;
  line-height: 1.8;
}

/* 玻璃卡片 */
.glass-card {
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  border-radius: 20px;
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  box-shadow: var(--glass-shadow);
  overflow: hidden;
  transition: transform 0.3s, box-shadow 0.3s;
}

.glass-card:hover {
  transform: translateY(-6px);
  box-shadow: 0 16px 48px rgba(0,0,0,0.5), 0 0 30px rgba(160,240,255,0.08);
}

/* 视频卡片网格 */
.video-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 24px;
}

.video-card {
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  border-radius: 16px;
  overflow: hidden;
  backdrop-filter: blur(16px);
  transition: transform 0.3s, box-shadow 0.3s;
  cursor: pointer;
}

.video-card:hover {
  transform: translateY(-6px);
  box-shadow: 0 16px 48px rgba(0,0,0,0.5), 0 0 30px rgba(160,240,255,0.1);
}

.video-thumb {
  position: relative;
  width: 100%;
  padding-top: 56.25%;
  overflow: hidden;
  background: #1A1A1A;
}

.video-thumb img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.4s ease;
}

.video-card:hover .video-thumb img {
  transform: scale(1.05);
}

.video-play-overlay {
  position: absolute;
  inset: 0;
  background: rgba(0,0,0,0);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: background 0.3s;
}

.video-card:hover .video-play-overlay {
  background: rgba(0,0,0,0.35);
}

.play-btn-circle {
  width: 56px;
  height: 56px;
  border-radius: 50%;
  background: rgba(160,240,255,0.2);
  border: 2px solid rgba(160,240,255,0.6);
  backdrop-filter: blur(8px);
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  transform: scale(0.7);
  transition: all 0.3s ease;
}

.video-card:hover .play-btn-circle {
  opacity: 1;
  transform: scale(1);
  box-shadow: 0 0 30px rgba(160,240,255,0.5);
}

.play-btn-circle svg {
  width: 22px;
  height: 22px;
  fill: var(--accent-cyan);
  margin-left: 4px;
}

.video-duration {
  position: absolute;
  bottom: 10px;
  right: 10px;
  background: rgba(0,0,0,0.7);
  color: #fff;
  font-size: 0.75rem;
  padding: 3px 8px;
  border-radius: 6px;
}

.video-info {
  padding: 16px;
}

.video-title {
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 8px;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
  line-height: 1.5;
}

.video-meta {
  display: flex;
  gap: 16px;
  color: var(--text-secondary);
  font-size: 0.8rem;
}

.video-meta span {
  display: flex;
  align-items: center;
  gap: 4px;
}

.video-tag {
  display: inline-block;
  background: rgba(160,240,255,0.1);
  color: var(--accent-cyan);
  border-radius: 4px;
  padding: 2px 8px;
  font-size: 0.75rem;
  margin-bottom: 8px;
}

/* 社区弹幕 */
.danmaku-wrap {
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  border-radius: 16px;
  padding: 24px;
  overflow: hidden;
  position: relative;
  height: 160px;
  backdrop-filter: blur(16px);
}

.danmaku-row {
  display: flex;
  gap: 24px;
  white-space: nowrap;
  animation: danmaku-scroll 20s linear infinite;
  margin-bottom: 16px;
}

.danmaku-row:nth-child(2) {
  animation-duration: 25s;
  animation-delay: -8s;
}

.danmaku-row:nth-child(3) {
  animation-duration: 18s;
  animation-delay: -4s;
}

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

.danmaku-item {
  background: rgba(255,255,255,0.08);
  border: 1px solid rgba(255,255,255,0.12);
  border-radius: 50px;
  padding: 6px 16px;
  font-size: 0.85rem;
  color: var(--text-secondary);
  white-space: nowrap;
  flex-shrink: 0;
}

/* 专家卡片 */
.experts-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 24px;
}

.expert-card {
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  border-radius: 20px;
  padding: 28px 24px;
  text-align: center;
  backdrop-filter: blur(16px);
  transition: transform 0.3s, box-shadow 0.3s;
}

.expert-card:hover {
  transform: translateY(-6px);
  box-shadow: 0 16px 48px rgba(0,0,0,0.4);
}

.expert-avatar {
  width: 90px;
  height: 90px;
  border-radius: 50%;
  object-fit: cover;
  margin: 0 auto 16px;
  border: 2px solid rgba(160,240,255,0.3);
  display: block;
}

.expert-name {
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 6px;
}

.expert-title {
  font-size: 0.85rem;
  color: var(--accent-cyan);
  margin-bottom: 12px;
}

.expert-desc {
  font-size: 0.85rem;
  color: var(--text-secondary);
  line-height: 1.7;
}

/* 用户评价 */
.reviews-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 24px;
}

.review-card {
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  border-radius: 20px;
  padding: 28px;
  backdrop-filter: blur(16px);
  transition: transform 0.3s;
}

.review-card:hover { transform: translateY(-4px); }

.review-stars {
  color: #FFD700;
  font-size: 1rem;
  margin-bottom: 14px;
  letter-spacing: 2px;
}

.review-text {
  font-size: 0.92rem;
  color: var(--text-secondary);
  line-height: 1.8;
  margin-bottom: 20px;
}

.review-author {
  display: flex;
  align-items: center;
  gap: 12px;
}

.review-avatar {
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--accent-cyan), var(--accent-purple));
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: 1rem;
  color: #111;
  flex-shrink: 0;
}

.review-author-info .name {
  font-weight: 600;
  font-size: 0.9rem;
}

.review-author-info .role {
  font-size: 0.78rem;
  color: var(--text-secondary);
}

/* FAQ */
.faq-list { max-width: 800px; margin: 0 auto; }

.faq-item {
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  border-radius: 14px;
  margin-bottom: 12px;
  overflow: hidden;
  backdrop-filter: blur(16px);
}

.faq-question {
  width: 100%;
  background: none;
  border: none;
  color: var(--text-primary);
  font-size: 0.95rem;
  font-weight: 600;
  padding: 18px 24px;
  text-align: left;
  cursor: pointer;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 12px;
  transition: color 0.3s;
}

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

.faq-icon {
  font-size: 1.2rem;
  color: var(--accent-cyan);
  transition: transform 0.3s;
  flex-shrink: 0;
}

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

.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.4s ease, padding 0.3s;
  padding: 0 24px;
}

.faq-item.open .faq-answer {
  max-height: 300px;
  padding: 0 24px 18px;
}

.faq-answer p {
  color: var(--text-secondary);
  font-size: 0.9rem;
  line-height: 1.8;
}

/* 合作伙伴 */
.partners-grid {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  justify-content: center;
}

.partner-logo {
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  border-radius: 12px;
  padding: 16px 28px;
  font-size: 0.9rem;
  color: var(--text-secondary);
  font-weight: 600;
  backdrop-filter: blur(10px);
  transition: all 0.3s;
}

.partner-logo:hover {
  border-color: var(--accent-cyan);
  color: var(--accent-cyan);
}

/* 统计数字 */
.stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 24px;
  margin-bottom: 60px;
}

.stat-card {
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  border-radius: 16px;
  padding: 28px 20px;
  text-align: center;
  backdrop-filter: blur(16px);
}

.stat-number {
  font-size: 2.2rem;
  font-weight: 800;
  background: var(--gradient-main);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  display: block;
  margin-bottom: 8px;
}

.stat-label {
  font-size: 0.85rem;
  color: var(--text-secondary);
}

/* AI模块 */
.ai-features {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
  gap: 24px;
}

.ai-feature-card {
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  border-radius: 20px;
  padding: 28px 24px;
  backdrop-filter: blur(16px);
  transition: transform 0.3s, box-shadow 0.3s;
}

.ai-feature-card:hover {
  transform: translateY(-6px);
  box-shadow: 0 16px 48px rgba(216,160,255,0.1);
}

.ai-icon {
  width: 52px;
  height: 52px;
  border-radius: 14px;
  background: linear-gradient(135deg, rgba(160,240,255,0.2), rgba(216,160,255,0.2));
  border: 1px solid rgba(160,240,255,0.2);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  margin-bottom: 18px;
}

.ai-feature-title {
  font-size: 1rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 10px;
}

.ai-feature-desc {
  font-size: 0.85rem;
  color: var(--text-secondary);
  line-height: 1.7;
}

/* 联系模块 */
.contact-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 24px;
}

.contact-card {
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  border-radius: 20px;
  padding: 32px 28px;
  backdrop-filter: blur(16px);
}

.contact-card h3 {
  font-size: 1.1rem;
  font-weight: 700;
  margin-bottom: 16px;
  color: var(--accent-cyan);
}

.contact-card p {
  font-size: 0.9rem;
  color: var(--text-secondary);
  line-height: 1.8;
  margin-bottom: 8px;
}

.qr-placeholder {
  width: 120px;
  height: 120px;
  background: linear-gradient(135deg, rgba(160,240,255,0.1), rgba(216,160,255,0.1));
  border: 1px solid var(--glass-border);
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.75rem;
  color: var(--text-secondary);
  text-align: center;
  margin-top: 16px;
}

/* 页脚 */
footer {
  background: rgba(10,10,10,0.95);
  border-top: 1px solid var(--glass-border);
  padding: 48px 5% 24px;
  position: relative;
  z-index: 1;
}

.footer-top {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 40px;
  margin-bottom: 40px;
}

.footer-brand-name {
  font-size: 1.3rem;
  font-weight: 700;
  background: var(--gradient-main);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  margin-bottom: 12px;
}

.footer-desc {
  font-size: 0.85rem;
  color: var(--text-secondary);
  line-height: 1.8;
  margin-bottom: 20px;
}

.footer-col h4 {
  font-size: 0.9rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 16px;
}

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

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

.footer-col ul li a {
  color: var(--text-secondary);
  text-decoration: none;
  font-size: 0.85rem;
  transition: color 0.3s;
}

.footer-col ul li a:hover { color: var(--accent-cyan); }

.footer-bottom {
  border-top: 1px solid var(--glass-border);
  padding-top: 24px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 12px;
}

.footer-copyright {
  font-size: 0.82rem;
  color: var(--text-secondary);
}

.footer-links {
  display: flex;
  gap: 20px;
}

.footer-links a {
  font-size: 0.82rem;
  color: var(--text-secondary);
  text-decoration: none;
  transition: color 0.3s;
}

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

/* 渐变分隔线 */
.section-divider {
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(160,240,255,0.2), rgba(216,160,255,0.2), transparent);
  margin: 0 5%;
}

/* 话题标签 */
.topic-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 24px;
}

.topic-tag {
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  border-radius: 50px;
  padding: 8px 18px;
  font-size: 0.85rem;
  color: var(--text-secondary);
  cursor: pointer;
  transition: all 0.3s;
}

.topic-tag:hover {
  border-color: var(--accent-purple);
  color: var(--accent-purple);
  background: rgba(216,160,255,0.08);
}

/* 面包屑 */
.breadcrumb {
  padding: 16px 5%;
  font-size: 0.85rem;
  color: var(--text-secondary);
  position: relative;
  z-index: 1;
}

.breadcrumb a {
  color: var(--accent-cyan);
  text-decoration: none;
}

.breadcrumb a:hover { text-decoration: underline; }

.breadcrumb span { margin: 0 8px; opacity: 0.5; }

/* 页面标题区 */
.page-hero {
  padding: 80px 5% 60px;
  text-align: center;
  position: relative;
  z-index: 1;
}

.page-hero h1 {
  font-size: clamp(1.8rem, 4vw, 3rem);
  font-weight: 800;
  background: var(--gradient-main);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  margin-bottom: 16px;
}

.page-hero p {
  font-size: 1rem;
  color: var(--text-secondary);
  max-width: 560px;
  margin: 0 auto;
  line-height: 1.8;
}

/* 响应式 */
@media (max-width: 1024px) {
  .footer-top { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 768px) {
  .navbar-nav { display: none; }
  .navbar-nav.open {
    display: flex;
    flex-direction: column;
    position: fixed;
    top: 70px; left: 0; right: 0;
    background: rgba(17,17,17,0.97);
    backdrop-filter: blur(20px);
    padding: 20px;
    border-bottom: 1px solid var(--glass-border);
    z-index: 999;
  }
  .navbar-toggle { display: block; }
  .hero { min-height: 70vh; }
  .hero h1 { font-size: 2rem; }
  .footer-top { grid-template-columns: 1fr; gap: 24px; }
  .footer-bottom { flex-direction: column; text-align: center; }
  .video-grid { grid-template-columns: repeat(auto-fill, minmax(240px, 1fr)); }
  .section { padding: 60px 5%; }
}

@media (max-width: 480px) {
  .hero-btns { flex-direction: column; }
  .btn-primary, .btn-secondary { text-align: center; }
  .stats-grid { grid-template-columns: 1fr 1fr; }
}

/* 动画 */
@keyframes float {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-10px); }
}

@keyframes glow-pulse {
  0%, 100% { box-shadow: 0 0 20px rgba(160,240,255,0.2); }
  50% { box-shadow: 0 0 40px rgba(160,240,255,0.4); }
}

.float-anim { animation: float 6s ease-in-out infinite; }

/* 光晕装饰 */
.glow-orb {
  position: absolute;
  border-radius: 50%;
  filter: blur(80px);
  pointer-events: none;
  z-index: 0;
}

.glow-orb-cyan {
  background: radial-gradient(circle, rgba(160,240,255,0.15) 0%, transparent 70%);
}

.glow-orb-purple {
  background: radial-gradient(circle, rgba(216,160,255,0.12) 0%, transparent 70%);
}

/* 滚动条 */
::-webkit-scrollbar { width: 6px; }
::-webkit-scrollbar-track { background: var(--bg-primary); }
::-webkit-scrollbar-thumb {
  background: linear-gradient(var(--accent-cyan), var(--accent-purple));
  border-radius: 3px;
}

/* 图片懒加载占位 */
img[loading="lazy"] { background: var(--bg-secondary); }

/* 内容区域背景 */
.bg-section-alt {
  background: rgba(26,26,26,0.5);
}