/* 糖心综合旗舰版超级门户 - 主样式表 */
/* 品牌色彩体系 */
:root {
  --primary: #FF6B9D;
  --secondary: #C44FE2;
  --tertiary: #7B68EE;
  --bg: #FFF5F9;
  --card: #FFFFFF;
  --accent: #FF1493;
  --text: #2D2D2D;
  --text-light: #666666;
  --text-muted: #999999;
  --radius: 16px;
  --radius-sm: 8px;
  --radius-lg: 24px;
  --shadow: 0 8px 32px rgba(255, 107, 157, 0.15);
  --shadow-sm: 0 4px 16px rgba(255, 107, 157, 0.1);
  --shadow-lg: 0 16px 48px rgba(255, 107, 157, 0.2);
  --gradient: linear-gradient(135deg, #FF6B9D, #C44FE2, #7B68EE);
  --gradient-light: linear-gradient(135deg, rgba(255,107,157,0.1), rgba(196,79,226,0.1), rgba(123,104,238,0.1));
  --font-title: -apple-system, "PingFang SC", "Microsoft YaHei", sans-serif;
  --font-body: -apple-system, "PingFang SC", "Microsoft YaHei", "Helvetica Neue", sans-serif;
  --max-width: 1200px;
  --header-height: 72px;
}

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

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

body {
  font-family: var(--font-body);
  color: var(--text);
  background-color: var(--bg);
  line-height: 1.8;
  overflow-x: hidden;
}

img {
  max-width: 100%;
  height: auto;
  display: block;
}

a {
  color: var(--primary);
  text-decoration: none;
  transition: color 0.3s ease;
}

a:hover {
  color: var(--accent);
}

ul, ol {
  list-style: none;
}

/* 通用容器 */
.container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 24px;
}

.section {
  padding: 80px 0;
}

.section-title {
  font-family: var(--font-title);
  font-size: 2.5rem;
  font-weight: 800;
  text-align: center;
  margin-bottom: 16px;
  background: var(--gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.section-subtitle {
  text-align: center;
  color: var(--text-light);
  font-size: 1.1rem;
  margin-bottom: 48px;
  font-weight: 300;
}

/* 头部导航 */
.header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: var(--header-height);
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid rgba(255, 107, 157, 0.1);
  z-index: 1000;
  transition: all 0.3s ease;
}

.header-inner {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 24px;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 1.5rem;
  font-weight: 800;
  background: var(--gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.logo img {
  width: 40px;
  height: 40px;
  border-radius: 10px;
}

.nav-menu {
  display: flex;
  align-items: center;
  gap: 32px;
}

.nav-menu a {
  color: var(--text);
  font-size: 0.95rem;
  font-weight: 500;
  position: relative;
  padding: 4px 0;
}

.nav-menu a::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--gradient);
  transition: width 0.3s ease;
}

.nav-menu a:hover::after,
.nav-menu a.active::after {
  width: 100%;
}

.nav-menu a:hover {
  color: var(--primary);
  -webkit-text-fill-color: initial;
}

.nav-cta {
  background: var(--gradient);
  color: #fff !important;
  -webkit-text-fill-color: #fff !important;
  padding: 10px 24px;
  border-radius: 50px;
  font-weight: 600;
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.nav-cta:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(255, 107, 157, 0.4);
}

.mobile-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  cursor: pointer;
  padding: 8px;
}

.mobile-toggle span {
  width: 24px;
  height: 2px;
  background: var(--text);
  border-radius: 2px;
  transition: all 0.3s ease;
}

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

.hero-bg {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  z-index: 0;
}

.hero-overlay {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: linear-gradient(135deg, rgba(255,107,157,0.85), rgba(196,79,226,0.75), rgba(123,104,238,0.85));
  z-index: 1;
}

.hero-content {
  position: relative;
  z-index: 2;
  text-align: center;
  color: #fff;
  padding: 40px 24px;
  max-width: 800px;
}

.hero-content h1 {
  font-family: var(--font-title);
  font-size: 3.5rem;
  font-weight: 900;
  margin-bottom: 20px;
  text-shadow: 0 4px 20px rgba(0,0,0,0.2);
}

.hero-content p {
  font-size: 1.3rem;
  font-weight: 300;
  margin-bottom: 40px;
  opacity: 0.95;
  line-height: 1.8;
}

.hero-cta {
  display: inline-flex;
  gap: 16px;
  flex-wrap: wrap;
  justify-content: center;
}

.btn-primary {
  display: inline-block;
  background: #fff;
  color: var(--primary);
  padding: 16px 40px;
  border-radius: 50px;
  font-size: 1.1rem;
  font-weight: 700;
  transition: all 0.3s ease;
  border: none;
  cursor: pointer;
}

.btn-primary:hover {
  transform: translateY(-3px);
  box-shadow: 0 12px 32px rgba(255,255,255,0.3);
  color: var(--accent);
}

.btn-secondary {
  display: inline-block;
  background: transparent;
  color: #fff;
  padding: 16px 40px;
  border-radius: 50px;
  font-size: 1.1rem;
  font-weight: 600;
  border: 2px solid rgba(255,255,255,0.6);
  transition: all 0.3s ease;
  cursor: pointer;
}

.btn-secondary:hover {
  background: rgba(255,255,255,0.15);
  border-color: #fff;
  transform: translateY(-3px);
  color: #fff;
}

/* 在线人数计数器 */
.live-counter {
  position: absolute;
  bottom: 40px;
  left: 50%;
  transform: translateX(-50%);
  z-index: 2;
  display: flex;
  align-items: center;
  gap: 12px;
  background: rgba(255,255,255,0.15);
  backdrop-filter: blur(10px);
  padding: 12px 24px;
  border-radius: 50px;
  color: #fff;
}

.live-dot {
  width: 10px;
  height: 10px;
  background: #00FF88;
  border-radius: 50%;
  animation: pulse 2s infinite;
}

@keyframes pulse {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.6; transform: scale(1.3); }
}

/* 业务线Tab导航 */
.biz-tabs {
  background: var(--card);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow);
  padding: 40px;
  margin-top: -60px;
  position: relative;
  z-index: 10;
}

.tab-nav {
  display: flex;
  justify-content: center;
  gap: 8px;
  margin-bottom: 32px;
  flex-wrap: wrap;
}

.tab-btn {
  padding: 12px 28px;
  border-radius: 50px;
  border: 2px solid transparent;
  background: var(--bg);
  color: var(--text);
  font-size: 0.95rem;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.3s ease;
}

.tab-btn:hover {
  border-color: var(--primary);
  color: var(--primary);
}

.tab-btn.active {
  background: var(--gradient);
  color: #fff;
  border-color: transparent;
}

.tab-content {
  display: none;
  animation: fadeIn 0.4s ease;
}

.tab-content.active {
  display: block;
}

@keyframes fadeIn {
  from { opacity: 0; transform: translateY(10px); }
  to { opacity: 1; transform: translateY(0); }
}

.tab-panel {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 32px;
  align-items: center;
}

.tab-panel-text h3 {
  font-size: 1.8rem;
  font-weight: 700;
  margin-bottom: 16px;
  color: var(--text);
}

.tab-panel-text p {
  color: var(--text-light);
  margin-bottom: 24px;
  line-height: 1.8;
}

.tab-panel-img {
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
}

.tab-panel-img img {
  width: 100%;
  height: auto;
  transition: transform 0.5s ease;
}

.tab-panel-img:hover img {
  transform: scale(1.03);
}

/* 数据计数器 */
.stats-section {
  background: var(--gradient);
  padding: 80px 0;
}

.stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 32px;
  text-align: center;
  color: #fff;
}

.stat-item {
  padding: 24px;
}

.stat-number {
  font-size: 3rem;
  font-weight: 900;
  margin-bottom: 8px;
  font-family: var(--font-title);
}

.stat-label {
  font-size: 1rem;
  opacity: 0.9;
  font-weight: 300;
}

/* 卡片网格 */
.card-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.card {
  background: var(--card);
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  transition: all 0.3s ease;
}

.card:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow-lg);
}

.card-img {
  width: 100%;
  height: 200px;
  object-fit: cover;
}

.card-body {
  padding: 24px;
}

.card-body h3 {
  font-size: 1.2rem;
  font-weight: 700;
  margin-bottom: 12px;
}

.card-body p {
  color: var(--text-light);
  font-size: 0.95rem;
  line-height: 1.7;
}

.card-tag {
  display: inline-block;
  background: var(--gradient-light);
  color: var(--primary);
  padding: 4px 12px;
  border-radius: 20px;
  font-size: 0.8rem;
  font-weight: 600;
  margin-top: 12px;
}

/* 会员体系 */
.membership-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.member-card {
  background: var(--card);
  border-radius: var(--radius);
  padding: 40px 32px;
  text-align: center;
  box-shadow: var(--shadow-sm);
  transition: all 0.3s ease;
  position: relative;
  overflow: hidden;
}

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

.member-card:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow-lg);
}

.member-card.featured {
  border: 2px solid var(--primary);
  transform: scale(1.05);
}

.member-card.featured:hover {
  transform: scale(1.05) translateY(-8px);
}

.member-icon {
  width: 64px;
  height: 64px;
  margin: 0 auto 20px;
  background: var(--gradient-light);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.8rem;
}

.member-card h3 {
  font-size: 1.5rem;
  font-weight: 700;
  margin-bottom: 12px;
}

.member-card .price {
  font-size: 2rem;
  font-weight: 900;
  background: var(--gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  margin-bottom: 20px;
}

.member-features {
  text-align: left;
  margin-bottom: 24px;
}

.member-features li {
  padding: 8px 0;
  color: var(--text-light);
  position: relative;
  padding-left: 24px;
}

.member-features li::before {
  content: '✓';
  position: absolute;
  left: 0;
  color: var(--primary);
  font-weight: 700;
}

/* 品牌合作 */
.partners-wall {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 24px;
  align-items: center;
}

.partner-logo {
  background: var(--card);
  border-radius: var(--radius-sm);
  padding: 24px;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: var(--shadow-sm);
  transition: all 0.3s ease;
  min-height: 80px;
}

.partner-logo:hover {
  transform: scale(1.05);
  box-shadow: var(--shadow);
}

/* 品牌时间线 */
.timeline {
  position: relative;
  padding: 40px 0;
}

.timeline::before {
  content: '';
  position: absolute;
  left: 50%;
  top: 0;
  bottom: 0;
  width: 3px;
  background: var(--gradient);
  transform: translateX(-50%);
}

.timeline-item {
  display: flex;
  align-items: center;
  margin-bottom: 48px;
  position: relative;
}

.timeline-item:nth-child(odd) {
  flex-direction: row-reverse;
}

.timeline-dot {
  position: absolute;
  left: 50%;
  transform: translateX(-50%);
  width: 20px;
  height: 20px;
  background: var(--gradient);
  border-radius: 50%;
  border: 4px solid var(--bg);
  z-index: 2;
}

.timeline-content {
  width: 45%;
  background: var(--card);
  border-radius: var(--radius);
  padding: 24px;
  box-shadow: var(--shadow-sm);
}

.timeline-content h4 {
  font-size: 1.2rem;
  font-weight: 700;
  margin-bottom: 8px;
  color: var(--primary);
}

.timeline-content p {
  color: var(--text-light);
  font-size: 0.95rem;
}

/* APP下载区域 */
.app-section {
  background: var(--gradient);
  border-radius: var(--radius-lg);
  padding: 60px;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 40px;
  align-items: center;
  color: #fff;
}

.app-section h2 {
  font-size: 2.2rem;
  font-weight: 800;
  margin-bottom: 16px;
}

.app-section p {
  font-size: 1.1rem;
  opacity: 0.9;
  margin-bottom: 32px;
  line-height: 1.8;
}

.app-buttons {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
}

.app-btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(255,255,255,0.2);
  border: 2px solid rgba(255,255,255,0.5);
  color: #fff;
  padding: 14px 28px;
  border-radius: 12px;
  font-weight: 600;
  transition: all 0.3s ease;
}

.app-btn:hover {
  background: #fff;
  color: var(--primary);
  border-color: #fff;
}

.app-img {
  border-radius: var(--radius);
  overflow: hidden;
}

.app-img img {
  width: 100%;
  height: auto;
}

/* 页脚 */
.footer {
  background: #1a1a2e;
  color: #fff;
  padding: 80px 0 40px;
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr 1fr;
  gap: 40px;
  margin-bottom: 48px;
}

.footer-brand {
  max-width: 280px;
}

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

.footer-brand p {
  color: rgba(255,255,255,0.7);
  font-size: 0.9rem;
  line-height: 1.8;
}

.footer-col h4 {
  font-size: 1rem;
  font-weight: 700;
  margin-bottom: 20px;
  color: #fff;
}

.footer-col a {
  display: block;
  color: rgba(255,255,255,0.7);
  font-size: 0.9rem;
  padding: 6px 0;
  transition: color 0.3s ease;
}

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

.footer-bottom {
  border-top: 1px solid rgba(255,255,255,0.1);
  padding-top: 32px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 16px;
}

.footer-bottom p {
  color: rgba(255,255,255,0.5);
  font-size: 0.85rem;
}

.footer-links {
  display: flex;
  gap: 24px;
}

.footer-links a {
  color: rgba(255,255,255,0.5);
  font-size: 0.85rem;
}

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

/* 面包屑 */
.breadcrumb {
  padding: 24px 0;
  margin-top: var(--header-height);
}

.breadcrumb-list {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.9rem;
  color: var(--text-muted);
}

.breadcrumb-list a {
  color: var(--text-light);
}

.breadcrumb-list a:hover {
  color: var(--primary);
}

.breadcrumb-list .separator {
  color: var(--text-muted);
}

/* 内页通用 */
.page-hero {
  background: var(--gradient);
  padding: 120px 0 80px;
  text-align: center;
  color: #fff;
  margin-top: var(--header-height);
}

.page-hero h1 {
  font-size: 2.8rem;
  font-weight: 900;
  margin-bottom: 16px;
}

.page-hero p {
  font-size: 1.2rem;
  opacity: 0.9;
  max-width: 600px;
  margin: 0 auto;
}

.page-content {
  padding: 60px 0;
}

.content-block {
  background: var(--card);
  border-radius: var(--radius);
  padding: 40px;
  margin-bottom: 32px;
  box-shadow: var(--shadow-sm);
}

.content-block h2 {
  font-size: 1.8rem;
  font-weight: 700;
  margin-bottom: 16px;
  color: var(--text);
}

.content-block h3 {
  font-size: 1.4rem;
  font-weight: 700;
  margin-bottom: 12px;
  color: var(--text);
}

.content-block p {
  color: var(--text-light);
  margin-bottom: 16px;
  line-height: 1.8;
}

/* FAQ */
.faq-list {
  margin-top: 32px;
}

.faq-item {
  border-bottom: 1px solid rgba(255,107,157,0.1);
  padding: 20px 0;
}

.faq-question {
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--text);
  cursor: pointer;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.faq-question::after {
  content: '+';
  font-size: 1.5rem;
  color: var(--primary);
  transition: transform 0.3s ease;
}

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

.faq-answer {
  color: var(--text-light);
  padding-top: 12px;
  line-height: 1.8;
  display: none;
}

.faq-item.open .faq-answer {
  display: block;
}

/* 搜索页 */
.search-box {
  max-width: 600px;
  margin: 0 auto 40px;
  position: relative;
}

.search-input {
  width: 100%;
  padding: 18px 60px 18px 24px;
  border: 2px solid rgba(255,107,157,0.3);
  border-radius: 50px;
  font-size: 1.1rem;
  outline: none;
  transition: border-color 0.3s ease;
  background: var(--card);
}

.search-input:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 4px rgba(255,107,157,0.1);
}

.search-btn {
  position: absolute;
  right: 8px;
  top: 50%;
  transform: translateY(-50%);
  width: 44px;
  height: 44px;
  background: var(--gradient);
  border: none;
  border-radius: 50%;
  color: #fff;
  font-size: 1.2rem;
  cursor: pointer;
  transition: transform 0.3s ease;
}

.search-btn:hover {
  transform: translateY(-50%) scale(1.1);
}

.search-results {
  margin-top: 24px;
}

.search-result-item {
  background: var(--card);
  border-radius: var(--radius-sm);
  padding: 20px;
  margin-bottom: 16px;
  box-shadow: var(--shadow-sm);
  transition: all 0.3s ease;
}

.search-result-item:hover {
  box-shadow: var(--shadow);
}

.search-result-item h3 {
  font-size: 1.1rem;
  font-weight: 700;
  margin-bottom: 8px;
}

.search-result-item h3 a {
  color: var(--text);
}

.search-result-item h3 a:hover {
  color: var(--primary);
}

.search-result-item p {
  color: var(--text-light);
  font-size: 0.9rem;
}

/* 404页面 */
.error-page {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 40px;
}

.error-code {
  font-size: 8rem;
  font-weight: 900;
  background: var(--gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  line-height: 1;
  margin-bottom: 24px;
}

.error-page h2 {
  font-size: 2rem;
  font-weight: 700;
  margin-bottom: 16px;
}

.error-page p {
  color: var(--text-light);
  margin-bottom: 32px;
  font-size: 1.1rem;
}

/* 媒体报道 */
.media-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.media-item {
  background: var(--card);
  border-radius: var(--radius);
  padding: 32px;
  text-align: center;
  box-shadow: var(--shadow-sm);
  transition: all 0.3s ease;
}

.media-item:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow);
}

.media-item h4 {
  font-size: 1rem;
  font-weight: 700;
  margin-bottom: 8px;
}

.media-item p {
  color: var(--text-muted);
  font-size: 0.85rem;
}

/* 响应式设计 */
@media (max-width: 1024px) {
  .footer-grid {
    grid-template-columns: 1fr 1fr 1fr;
  }
  
  .stats-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  
  .partners-wall {
    grid-template-columns: repeat(3, 1fr);
  }
}

@media (max-width: 768px) {
  :root {
    --header-height: 64px;
  }
  
  .nav-menu {
    display: none;
    position: fixed;
    top: var(--header-height);
    left: 0;
    right: 0;
    background: #fff;
    flex-direction: column;
    padding: 24px;
    gap: 16px;
    box-shadow: var(--shadow);
  }
  
  .nav-menu.open {
    display: flex;
  }
  
  .mobile-toggle {
    display: flex;
  }
  
  .hero-content h1 {
    font-size: 2.2rem;
  }
  
  .hero-content p {
    font-size: 1rem;
  }
  
  .section-title {
    font-size: 1.8rem;
  }
  
  .tab-panel {
    grid-template-columns: 1fr;
  }
  
  .card-grid {
    grid-template-columns: 1fr;
  }
  
  .membership-grid {
    grid-template-columns: 1fr;
  }
  
  .member-card.featured {
    transform: none;
  }
  
  .stats-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 16px;
  }
  
  .stat-number {
    font-size: 2rem;
  }
  
  .app-section {
    grid-template-columns: 1fr;
    padding: 40px 24px;
  }
  
  .footer-grid {
    grid-template-columns: 1fr 1fr;
    gap: 24px;
  }
  
  .footer-brand {
    grid-column: span 2;
  }
  
  .footer-bottom {
    flex-direction: column;
    text-align: center;
  }
  
  .timeline::before {
    left: 20px;
  }
  
  .timeline-item,
  .timeline-item:nth-child(odd) {
    flex-direction: row;
    padding-left: 50px;
  }
  
  .timeline-dot {
    left: 20px;
  }
  
  .timeline-content {
    width: 100%;
  }
  
  .page-hero h1 {
    font-size: 2rem;
  }
  
  .biz-tabs {
    margin-top: -30px;
    padding: 24px;
  }
  
  .partners-wall {
    grid-template-columns: repeat(2, 1fr);
  }
  
  .media-grid {
    grid-template-columns: 1fr;
  }
  
  .live-counter {
    bottom: 20px;
    font-size: 0.85rem;
    padding: 8px 16px;
  }
  
  .content-block {
    padding: 24px;
  }
}

@media (max-width: 480px) {
  .hero-content h1 {
    font-size: 1.8rem;
  }
  
  .btn-primary, .btn-secondary {
    padding: 12px 28px;
    font-size: 1rem;
  }
  
  .footer-grid {
    grid-template-columns: 1fr;
  }
  
  .footer-brand {
    grid-column: span 1;
  }
  
  .stats-grid {
    grid-template-columns: 1fr;
  }
  
  .partners-wall {
    grid-template-columns: 1fr 1fr;
  }
}

/* 动画 */
.fade-in {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

.fade-in.visible {
  opacity: 1;
  transform: translateY(0);
}

/* 滚动条美化 */
::-webkit-scrollbar {
  width: 8px;
}

::-webkit-scrollbar-track {
  background: var(--bg);
}

::-webkit-scrollbar-thumb {
  background: var(--gradient);
  border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
  background: var(--primary);
}