/* ================================================================
   瓜老师 - 主样式文件 | vbsfly.cn
   原创配色方案：玫瑰粉 + 深玫瑰 + 珍珠白 + 暗金
   ================================================================ */

/* ---- CSS变量 ---- */
:root {
  --pink: #FF4E8B;
  --pink-dark: #D63070;
  --pink-light: #FFB3CF;
  --pink-pale: #FFF0F5;
  --rose: #C2185B;
  --dark: #1a0a12;
  --dark2: #2d1420;
  --gray: #666;
  --gray-light: #f5f5f5;
  --white: #ffffff;
  --gold: #C9A84C;
  --radius: 12px;
  --radius-lg: 20px;
  --shadow: 0 4px 24px rgba(255,78,139,.12);
  --shadow-hover: 0 8px 40px rgba(255,78,139,.22);
  --transition: .25s cubic-bezier(.4,0,.2,1);
  --font: 'PingFang SC','Microsoft YaHei','Hiragino Sans GB',sans-serif;
  --header-h: 68px;
}

/* ---- 全局重置 ---- */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; font-size: 16px; }
body {
  font-family: var(--font);
  background: var(--white);
  color: var(--dark);
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; height: auto; display: block; }
a { text-decoration: none; color: inherit; transition: color var(--transition); }
a:hover { color: var(--pink); }
ul { list-style: none; }
button { cursor: pointer; border: none; background: none; font-family: var(--font); }
input, textarea { font-family: var(--font); }
.sr-only { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0,0,0,0); }

/* ---- 容器 ---- */
.container { max-width: 1200px; margin: 0 auto; padding: 0 20px; }

/* ---- 顶部公告条 ---- */
.jxg1urs4 {
  background: linear-gradient(90deg, var(--dark2) 0%, #3d1a2a 100%);
  color: #FFB3CF;
  text-align: center;
  padding: 9px 20px;
  font-size: .82rem;
  letter-spacing: .02em;
}
.jxg1urs4 a { color: var(--pink-light); font-weight: 700; margin: 0 4px; }
.jxg1urs4 a:hover { color: var(--white); }

/* ---- 网站头部 ---- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 1000;
  background: rgba(255,255,255,.97);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1.5px solid #F0D0DC;
  height: var(--header-h);
  box-shadow: 0 2px 16px rgba(255,78,139,.08);
}
.header-inner {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 20px;
  height: 100%;
  display: flex;
  align-items: center;
  gap: 20px;
}

/* ---- Logo ---- */
.logo-wrap {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-shrink: 0;
  text-decoration: none;
}
.logo-icon {
  width: 40px;
  height: 40px;
  object-fit: contain;
  border-radius: 8px;
}
.logo-text {
  font-size: 1.35rem;
  font-weight: 900;
  background: linear-gradient(135deg, var(--pink) 0%, var(--rose) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  letter-spacing: -.01em;
}

/* ---- 主导航 ---- */
.main-nav {
  display: flex;
  align-items: center;
  gap: 4px;
  flex: 1;
}
.main-nav a {
  padding: 7px 14px;
  border-radius: 8px;
  font-size: .9rem;
  font-weight: 600;
  color: var(--dark);
  white-space: nowrap;
  transition: all var(--transition);
}
.main-nav a:hover,
.main-nav a.active {
  background: var(--pink-pale);
  color: var(--pink);
}

/* ---- 搜索框 ---- */
.nav-search {
  display: flex;
  align-items: center;
  background: var(--gray-light);
  border-radius: 24px;
  padding: 6px 14px;
  gap: 8px;
  border: 1.5px solid transparent;
  transition: border-color var(--transition);
  flex-shrink: 0;
}
.nav-search:focus-within { border-color: var(--pink); background: var(--white); }
.nav-search input {
  border: none;
  background: none;
  outline: none;
  font-size: .88rem;
  width: 160px;
  color: var(--dark);
}
.nav-search button { font-size: 1rem; color: var(--pink); padding: 0; }

/* ---- 汉堡菜单 ---- */
.hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  cursor: pointer;
  padding: 4px;
  margin-left: auto;
}
.hamburger span {
  width: 24px;
  height: 2.5px;
  background: var(--dark);
  border-radius: 2px;
  transition: all var(--transition);
}

/* ---- Hero轮播 ---- */
.hero {
  position: relative;
  height: 520px;
  overflow: hidden;
  background: var(--dark);
}
.hero-slides { position: absolute; inset: 0; }
.hero-slide {
  position: absolute;
  inset: 0;
  opacity: 0;
  transition: opacity .8s ease;
}
.hero-slide.active { opacity: 1; }
.hero-slide img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center top;
}
.hero-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(26,10,18,.75) 0%, rgba(26,10,18,.35) 60%, transparent 100%);
}
.hero-content {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  text-align: center;
  color: var(--white);
  z-index: 2;
  width: 90%;
  max-width: 700px;
}
.hero-content h1 {
  font-size: clamp(2rem, 5vw, 3.2rem);
  font-weight: 900;
  line-height: 1.2;
  margin-bottom: 16px;
  text-shadow: 0 2px 20px rgba(0,0,0,.4);
}
.hero-content h1 span {
  background: linear-gradient(135deg, var(--pink) 0%, #FFB3CF 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.hero-content p {
  font-size: 1rem;
  opacity: .88;
  margin-bottom: 28px;
  line-height: 1.7;
}
.hero-btns { display: flex; gap: 14px; justify-content: center; flex-wrap: wrap; }
.btn-primary {
  background: linear-gradient(135deg, var(--pink) 0%, var(--rose) 100%);
  color: var(--white);
  padding: 12px 30px;
  border-radius: 30px;
  font-weight: 700;
  font-size: .95rem;
  transition: all var(--transition);
  box-shadow: 0 4px 20px rgba(255,78,139,.4);
  display: inline-block;
}
.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 30px rgba(255,78,139,.5);
  color: var(--white);
}
.btn-outline {
  border: 2px solid rgba(255,255,255,.8);
  color: var(--white);
  padding: 10px 28px;
  border-radius: 30px;
  font-weight: 700;
  font-size: .95rem;
  transition: all var(--transition);
  display: inline-block;
}
.btn-outline:hover {
  background: rgba(255,255,255,.15);
  color: var(--white);
}
.7hkf63 {
  position: absolute;
  bottom: 24px;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  gap: 8px;
  z-index: 3;
}
.5s0er {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: rgba(255,255,255,.5);
  cursor: pointer;
  transition: all var(--transition);
}
.5s0er.active {
  background: var(--pink);
  width: 24px;
  border-radius: 4px;
}

/* ---- 统计条 ---- */
.stats-bar {
  background: linear-gradient(135deg, var(--dark) 0%, var(--dark2) 100%);
  padding: 28px 0;
}
.stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
}
.stat-item { text-align: center; }
.stat-num {
  display: block;
  font-size: 1.8rem;
  font-weight: 900;
  color: var(--pink);
  line-height: 1.2;
}
.stat-label {
  font-size: .82rem;
  color: rgba(255,255,255,.65);
  margin-top: 4px;
}

/* ---- 通用Section ---- */
.section { padding: 64px 0; }
.section-alt { background: #FFF8FA; }
.section-pink { background: linear-gradient(135deg, #FFF0F5 0%, #FFE4EE 100%); }

/* ---- Section标题 ---- */
.section-title { text-align: center; margin-bottom: 44px; }
.section-title h2 {
  font-size: clamp(1.5rem, 3vw, 2rem);
  font-weight: 900;
  color: var(--dark);
  margin-bottom: 10px;
}
.section-title h2 span { color: var(--pink); }
.section-title p {
  font-size: .92rem;
  color: var(--gray);
  max-width: 560px;
  margin: 0 auto;
}
.title-line {
  width: 48px;
  height: 4px;
  background: linear-gradient(90deg, var(--pink) 0%, var(--pink-light) 100%);
  border-radius: 2px;
  margin: 14px auto 0;
}

/* ---- Tab栏 ---- */
.2vsj40on {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 32px;
}
.xe4fx {
  padding: 8px 18px;
  border-radius: 24px;
  font-size: .85rem;
  font-weight: 600;
  color: var(--gray);
  background: var(--gray-light);
  transition: all var(--transition);
  border: 1.5px solid transparent;
}
.xe4fx:hover { color: var(--pink); background: var(--pink-pale); }
.xe4fx.active {
  background: linear-gradient(135deg, var(--pink) 0%, var(--rose) 100%);
  color: var(--white);
  border-color: transparent;
  box-shadow: 0 4px 16px rgba(255,78,139,.3);
}

/* ---- 视频网格 ---- */
.video-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 22px;
}

/* ---- 视频卡片 ---- */
.video-card {
  background: var(--white);
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow);
  transition: all var(--transition);
  cursor: pointer;
  border: 1px solid #F0D0DC;
}
.video-card:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-hover);
  border-color: var(--pink-light);
}
.video-thumb {
  position: relative;
  padding-top: 56.25%;
  overflow: hidden;
  background: var(--dark);
}
.video-thumb img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--transition);
}
.video-card:hover .video-thumb img { transform: scale(1.05); }
.play-btn {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 48px;
  height: 48px;
  background: rgba(255,78,139,.85);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--white);
  font-size: 1.1rem;
  opacity: 0;
  transition: opacity var(--transition);
  box-shadow: 0 4px 20px rgba(255,78,139,.5);
}
.video-card:hover .play-btn { opacity: 1; }
.video-duration {
  position: absolute;
  bottom: 8px;
  right: 8px;
  background: rgba(0,0,0,.72);
  color: var(--white);
  font-size: .75rem;
  font-weight: 700;
  padding: 3px 8px;
  border-radius: 5px;
}
.video-tag {
  position: absolute;
  top: 8px;
  left: 8px;
  background: var(--pink);
  color: var(--white);
  font-size: .72rem;
  font-weight: 700;
  padding: 3px 8px;
  border-radius: 5px;
}
.video-info { padding: 14px; }
.video-info h3 {
  font-size: .88rem;
  font-weight: 700;
  color: var(--dark);
  line-height: 1.5;
  margin-bottom: 10px;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.video-meta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
}
.video-author {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: .78rem;
  color: var(--gray);
}
.video-author img {
  width: 24px;
  height: 24px;
  border-radius: 50%;
  object-fit: cover;
  flex-shrink: 0;
}
.video-stats {
  display: flex;
  gap: 8px;
  font-size: .75rem;
  color: var(--gray);
}

/* ---- 加载更多 ---- */
.s745hxn4 { text-align: center; margin-top: 36px; }
.wj3lwoe {
  display: inline-block;
  padding: 12px 36px;
  border-radius: 30px;
  border: 2px solid var(--pink);
  color: var(--pink);
  font-weight: 700;
  font-size: .92rem;
  transition: all var(--transition);
  background: transparent;
  cursor: pointer;
}
.wj3lwoe:hover {
  background: var(--pink);
  color: var(--white);
  box-shadow: 0 4px 20px rgba(255,78,139,.3);
}

/* ---- 社区卡片网格 ---- */
.community-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 22px;
}
.community-card {
  background: var(--white);
  border-radius: var(--radius);
  padding: 28px 24px;
  box-shadow: var(--shadow);
  border: 1px solid #F0D0DC;
  transition: all var(--transition);
}
.community-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-hover);
  border-color: var(--pink-light);
}
.community-icon {
  font-size: 2.2rem;
  margin-bottom: 14px;
  display: block;
}
.community-card h3 {
  font-size: 1rem;
  font-weight: 800;
  color: var(--dark);
  margin-bottom: 10px;
}
.community-card p {
  font-size: .86rem;
  color: var(--gray);
  line-height: 1.7;
}

/* ---- AI卡片网格 ---- */
.ai-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 22px;
}
.ai-card {
  background: linear-gradient(135deg, var(--dark) 0%, var(--dark2) 100%);
  border-radius: var(--radius);
  padding: 28px 24px;
  position: relative;
  overflow: hidden;
  transition: all var(--transition);
}
.ai-card:hover { transform: translateY(-4px); box-shadow: 0 8px 40px rgba(0,0,0,.3); }
.ai-card h3 {
  font-size: 1rem;
  font-weight: 800;
  color: var(--white);
  margin-bottom: 12px;
}
.ai-card p {
  font-size: .86rem;
  color: rgba(255,255,255,.7);
  line-height: 1.7;
}
.2ucba0ds {
  position: absolute;
  bottom: -10px;
  right: 10px;
  font-size: 4rem;
  font-weight: 900;
  color: rgba(255,255,255,.06);
  line-height: 1;
}

/* ---- 专家网格 ---- */
.experts-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 28px;
}
.expert-card {
  background: var(--white);
  border-radius: var(--radius-lg);
  padding: 32px 24px;
  text-align: center;
  box-shadow: var(--shadow);
  border: 1px solid #F0D0DC;
  transition: all var(--transition);
}
.expert-card:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-hover);
}
.expert-avatar {
  width: 90px;
  height: 90px;
  border-radius: 50%;
  object-fit: cover;
  margin: 0 auto 14px;
  border: 3px solid var(--pink-light);
}
.expert-name {
  font-size: 1.1rem;
  font-weight: 900;
  color: var(--dark);
  margin-bottom: 4px;
}
.expert-title {
  font-size: .82rem;
  color: var(--pink);
  font-weight: 700;
  margin-bottom: 12px;
}
.expert-desc {
  font-size: .84rem;
  color: var(--gray);
  line-height: 1.7;
  margin-bottom: 14px;
}
.expert-awards {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  justify-content: center;
  margin-bottom: 16px;
}
.l5dlyf2 {
  background: var(--pink-pale);
  color: var(--pink);
  font-size: .72rem;
  font-weight: 700;
  padding: 4px 10px;
  border-radius: 20px;
  border: 1px solid var(--pink-light);
}
.expert-btns { display: flex; gap: 8px; justify-content: center; flex-wrap: wrap; }
.btn-sm {
  padding: 8px 18px;
  border-radius: 20px;
  font-size: .82rem;
  font-weight: 700;
  transition: all var(--transition);
  display: inline-block;
}
.btn-sm-pink {
  background: linear-gradient(135deg, var(--pink) 0%, var(--rose) 100%);
  color: var(--white);
  box-shadow: 0 3px 12px rgba(255,78,139,.3);
}
.btn-sm-pink:hover { transform: translateY(-1px); box-shadow: 0 5px 18px rgba(255,78,139,.4); color: var(--white); }
.btn-sm-outline {
  border: 1.5px solid var(--pink);
  color: var(--pink);
  background: transparent;
}
.btn-sm-outline:hover { background: var(--pink-pale); }

/* ---- 合作伙伴 ---- */
.partners-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(160px, 1fr));
  gap: 16px;
}
.y75a7vo {
  background: var(--white);
  border: 1.5px solid #F0D0DC;
  border-radius: var(--radius);
  padding: 18px 14px;
  text-align: center;
  font-weight: 700;
  font-size: .88rem;
  color: var(--dark);
  transition: all var(--transition);
}
.y75a7vo:hover {
  border-color: var(--pink);
  color: var(--pink);
  box-shadow: var(--shadow);
  transform: translateY(-2px);
}

/* ---- 步骤卡片 ---- */
.howto-steps {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
  gap: 20px;
}
.step-card {
  background: var(--white);
  border-radius: var(--radius);
  padding: 28px 20px;
  text-align: center;
  box-shadow: var(--shadow);
  border: 1px solid #F0D0DC;
  transition: all var(--transition);
}
.step-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-hover); }
.step-num {
  width: 52px;
  height: 52px;
  background: linear-gradient(135deg, var(--pink) 0%, var(--rose) 100%);
  color: var(--white);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.3rem;
  font-weight: 900;
  margin: 0 auto 14px;
  box-shadow: 0 4px 16px rgba(255,78,139,.3);
}
.step-card h4 {
  font-size: .95rem;
  font-weight: 800;
  color: var(--dark);
  margin-bottom: 8px;
}
.step-card p { font-size: .84rem; color: var(--gray); line-height: 1.7; }

/* ---- 联系区 ---- */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 40px;
  align-items: start;
}
.contact-info h3 {
  font-size: 1.2rem;
  font-weight: 900;
  color: var(--dark);
  margin-bottom: 20px;
}
.contact-item {
  display: flex;
  gap: 14px;
  margin-bottom: 16px;
  align-items: flex-start;
}
.contact-icon {
  font-size: 1.3rem;
  flex-shrink: 0;
  margin-top: 2px;
}
.contact-item strong { display: block; font-size: .88rem; font-weight: 800; margin-bottom: 2px; }
.contact-item p, .contact-item div { font-size: .86rem; color: var(--gray); }

/* ---- 分享栏 ---- */
.share-bar {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
}
.share-label { font-size: .85rem; color: var(--gray); }
.61m65ztu {
  padding: 7px 16px;
  border-radius: 20px;
  font-size: .82rem;
  font-weight: 700;
  transition: all var(--transition);
  border: 1.5px solid #F0D0DC;
  color: var(--dark);
  background: var(--white);
}
.61m65ztu:hover { border-color: var(--pink); color: var(--pink); }

/* ---- QR码 ---- */
.qr-row { display: flex; gap: 20px; flex-wrap: wrap; }
.qr-item { text-align: center; }
.qr-item p { font-size: .8rem; color: var(--gray); margin-top: 6px; font-weight: 600; }

/* ---- FAQ ---- */
.faq-list { max-width: 800px; margin: 0 auto; }
.faq-item {
  border: 1.5px solid #F0D0DC;
  border-radius: var(--radius);
  margin-bottom: 12px;
  overflow: hidden;
  background: var(--white);
}
.faq-q {
  padding: 18px 20px;
  font-weight: 700;
  font-size: .92rem;
  color: var(--dark);
  cursor: pointer;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 12px;
  transition: background var(--transition);
  user-select: none;
}
.faq-q:hover { background: var(--pink-pale); }
.faq-q.open { background: var(--pink-pale); color: var(--pink); }
.faq-icon {
  font-size: 1.3rem;
  font-weight: 400;
  flex-shrink: 0;
  transition: transform var(--transition);
}
.faq-q.open .faq-icon { transform: rotate(45deg); }
.faq-a {
  max-height: 0;
  overflow: hidden;
  transition: max-height .35s ease, padding .35s ease;
  padding: 0 20px;
  font-size: .88rem;
  color: var(--gray);
  line-height: 1.8;
}
.faq-a.open { max-height: 500px; padding: 0 20px 18px; }

/* ---- 评价网格 ---- */
.reviews-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 20px;
}
.review-card {
  background: var(--white);
  border-radius: var(--radius);
  padding: 24px;
  box-shadow: var(--shadow);
  border: 1px solid #F0D0DC;
  transition: all var(--transition);
}
.review-card:hover { transform: translateY(-3px); box-shadow: var(--shadow-hover); }
.review-stars { color: var(--gold); font-size: 1rem; margin-bottom: 10px; }
.review-text {
  font-size: .86rem;
  color: var(--gray);
  line-height: 1.7;
  margin-bottom: 14px;
}
.review-user { display: flex; align-items: center; gap: 10px; }
.review-avatar {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--pink) 0%, var(--rose) 100%);
  color: var(--white);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 800;
  font-size: .9rem;
  flex-shrink: 0;
}
.review-name { font-size: .85rem; font-weight: 700; color: var(--dark); }
.review-date { font-size: .75rem; color: #aaa; }

/* ---- 标签云 ---- */
.tag-cloud { display: flex; flex-wrap: wrap; gap: 10px; }
.tag {
  display: inline-block;
  padding: 7px 16px;
  background: var(--white);
  border: 1.5px solid #F0D0DC;
  border-radius: 20px;
  font-size: .84rem;
  color: var(--dark);
  font-weight: 600;
  transition: all var(--transition);
}
.tag:hover {
  background: var(--pink);
  border-color: var(--pink);
  color: var(--white);
  transform: translateY(-2px);
  box-shadow: 0 4px 14px rgba(255,78,139,.25);
}

/* ---- 弹幕条 ---- */
.264dcqu {
  background: var(--dark);
  padding: 10px 0;
  overflow: hidden;
}
.ry1a0z {
  display: flex;
  gap: 60px;
  white-space: nowrap;
  animation: danmaku 30s linear infinite;
  font-size: .82rem;
  color: rgba(255,255,255,.6);
}
@keyframes danmaku {
  0% { transform: translateX(0); }
  100% { transform: translateX(-50%); }
}

/* ---- 网站底部 ---- */
.site-footer {
  background: linear-gradient(135deg, var(--dark) 0%, #120608 100%);
  color: rgba(255,255,255,.7);
  padding: 56px 0 0;
}
.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1.5fr;
  gap: 40px;
  padding-bottom: 40px;
  border-bottom: 1px solid rgba(255,255,255,.08);
}
.footer-brand p {
  font-size: .84rem;
  line-height: 1.8;
  margin-top: 12px;
  opacity: .7;
}
.footer-col h4 {
  font-size: .95rem;
  font-weight: 800;
  color: var(--white);
  margin-bottom: 16px;
}
.footer-col ul li { margin-bottom: 8px; }
.footer-col ul li a {
  font-size: .84rem;
  color: rgba(255,255,255,.6);
  transition: color var(--transition);
}
.footer-col ul li a:hover { color: var(--pink); }
.footer-social { display: flex; gap: 10px; }
.34698bs {
  width: 36px;
  height: 36px;
  background: rgba(255,255,255,.08);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1rem;
  transition: all var(--transition);
  cursor: pointer;
}
.34698bs:hover { background: var(--pink); transform: translateY(-2px); }
.footer-bottom {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 18px 0;
  font-size: .8rem;
  color: rgba(255,255,255,.4);
  flex-wrap: wrap;
  gap: 10px;
}
.footer-bottom a { color: rgba(255,255,255,.4); transition: color var(--transition); }
.footer-bottom a:hover { color: var(--pink); }

/* ---- 面包屑 ---- */
.breadcrumb {
  background: var(--pink-pale);
  border-bottom: 1px solid #F0D0DC;
  padding: 12px 0;
}
.breadcrumb ol {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: .84rem;
  flex-wrap: wrap;
}
.breadcrumb li:not(:last-child)::after { content: '›'; margin-left: 8px; color: var(--pink); }
.breadcrumb a { color: var(--pink); font-weight: 600; }
.breadcrumb li:last-child { color: var(--gray); }

/* ---- 页面Hero ---- */
.page-hero {
  background: linear-gradient(135deg, var(--dark) 0%, var(--dark2) 100%);
  padding: 56px 0;
  text-align: center;
  color: var(--white);
}
.page-hero h1 {
  font-size: clamp(1.8rem, 4vw, 2.6rem);
  font-weight: 900;
  margin-bottom: 12px;
}
.page-hero h1 span { color: var(--pink); }
.page-hero p { font-size: .95rem; opacity: .75; max-width: 600px; margin: 0 auto; }

/* ---- 视频详情页 ---- */
.video-detail-grid {
  display: grid;
  grid-template-columns: 1fr 320px;
  gap: 28px;
  align-items: start;
}
.video-player-wrap {
  position: relative;
  padding-top: 56.25%;
  background: var(--dark);
  border-radius: var(--radius);
  overflow: hidden;
}
.video-player-wrap video {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
}
.video-sidebar {
  background: var(--white);
  border-radius: var(--radius);
  border: 1px solid #F0D0DC;
  overflow: hidden;
  position: sticky;
  top: calc(var(--header-h) + 16px);
}
.sidebar-title {
  background: var(--pink-pale);
  padding: 14px 16px;
  font-weight: 800;
  font-size: .9rem;
  color: var(--dark);
  border-bottom: 1px solid #F0D0DC;
}
.sidebar-list { padding: 12px; }
.sidebar-video {
  display: flex;
  gap: 10px;
  padding: 10px;
  border-radius: 8px;
  transition: background var(--transition);
  margin-bottom: 4px;
}
.sidebar-video:hover { background: var(--pink-pale); }
.sidebar-thumb {
  width: 96px;
  height: 56px;
  border-radius: 6px;
  overflow: hidden;
  flex-shrink: 0;
  background: var(--dark);
}
.sidebar-thumb img { width: 100%; height: 100%; object-fit: cover; }
.sidebar-info h4 {
  font-size: .78rem;
  font-weight: 700;
  color: var(--dark);
  line-height: 1.4;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
  margin-bottom: 4px;
}
.sidebar-info span { font-size: .72rem; color: var(--gray); }

/* ---- 响应式 ---- */
@media (max-width: 1024px) {
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .contact-grid { grid-template-columns: 1fr; }
  .video-detail-grid { grid-template-columns: 1fr; }
  .video-sidebar { position: static; }
}

@media (max-width: 768px) {
  :root { --header-h: 60px; }
  .hero { height: 380px; }
  .hero-content h1 { font-size: 1.8rem; }
  .stats-grid { grid-template-columns: repeat(2, 1fr); }
  .main-nav {
    display: none;
    position: fixed;
    top: var(--header-h);
    left: 0;
    right: 0;
    background: var(--white);
    flex-direction: column;
    padding: 16px;
    border-bottom: 1px solid #F0D0DC;
    box-shadow: 0 8px 24px rgba(0,0,0,.1);
    z-index: 999;
    gap: 4px;
  }
  .main-nav.open { display: flex; }
  .main-nav a { padding: 10px 16px; font-size: .92rem; }
  .hamburger { display: flex; }
  .nav-search { display: none; }
  .footer-grid { grid-template-columns: 1fr; gap: 24px; }
  .footer-bottom { flex-direction: column; text-align: center; }
  .experts-grid { grid-template-columns: 1fr; }
  .howto-steps { grid-template-columns: 1fr 1fr; }
  .video-grid { grid-template-columns: repeat(auto-fill, minmax(220px, 1fr)); }
  .section { padding: 40px 0; }
}

@media (max-width: 480px) {
  .hero { height: 300px; }
  .hero-content h1 { font-size: 1.4rem; }
  .hero-content p { font-size: .85rem; }
  .btn-primary, .btn-outline { padding: 10px 20px; font-size: .88rem; }
  .stats-grid { grid-template-columns: repeat(2, 1fr); gap: 12px; }
  .video-grid { grid-template-columns: 1fr; }
  .howto-steps { grid-template-columns: 1fr; }
  .community-grid { grid-template-columns: 1fr; }
  .ai-grid { grid-template-columns: 1fr; }
  .reviews-grid { grid-template-columns: 1fr; }
  .partners-grid { grid-template-columns: repeat(2, 1fr); }
  .section-title h2 { font-size: 1.4rem; }
  .page-hero { padding: 36px 0; }
  .page-hero h1 { font-size: 1.6rem; }
}

/* ---- 打印样式 ---- */
@media print {
  .site-header, .264dcqu, .site-footer, .7hkf63, .hamburger { display: none; }
  .hero { height: auto; }
  .hero-overlay { display: none; }
}

/* ================================================================
   瓜老师 - 补充样式（修复版 v2）| vbsfly.cn
   ================================================================ */

/* ---- 底部Logo ---- */
.footer-logo-wrap {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 12px;
  text-decoration: none;
}
.footer-logo-img {
  width: 40px;
  height: 40px;
  object-fit: contain;
  border-radius: 8px;
}
.footer-logo-text {
  font-size: 1.3rem;
  font-weight: 900;
  color: var(--white);
  letter-spacing: -.01em;
}
.footer-domain {
  margin-top: 10px;
  font-size: .8rem;
  opacity: .5;
}
.footer-qr-row {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
  margin-top: 16px;
}
.m4u1bxg5 {
  width: 90px;
  height: 90px;
  border-radius: 8px;
  border: 1px solid rgba(255,255,255,.15);
}
.footer-links-row {
  padding: 16px 0;
  border-top: 1px solid rgba(255,255,255,.06);
  border-bottom: 1px solid rgba(255,255,255,.06);
  font-size: .8rem;
  color: rgba(255,255,255,.4);
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  align-items: center;
}
.footer-links-label { color: rgba(255,255,255,.3); }
.footer-links-row a {
  color: rgba(255,255,255,.4);
  transition: color var(--transition);
}
.footer-links-row a:hover { color: var(--pink); }
.footer-copyright { display: flex; flex-wrap: wrap; gap: 4px; align-items: center; }
.footer-update { display: flex; flex-wrap: wrap; gap: 4px; align-items: center; }

/* ---- 卡片链接 ---- */
.card-link {
  display: inline-block;
  margin-top: 12px;
  font-size: .82rem;
  font-weight: 700;
  color: var(--pink);
  transition: color var(--transition);
}
.card-link:hover { color: var(--rose); }
.card-link-dark {
  display: inline-block;
  margin-top: 12px;
  font-size: .82rem;
  font-weight: 700;
  color: var(--pink-light);
  transition: color var(--transition);
}
.card-link-dark:hover { color: var(--white); }

/* ---- 视频直播标签 ---- */
.tag-live {
  background: #FF4E4E !important;
  animation: livePulse 1.5s ease-in-out infinite;
}
.duration-live {
  background: rgba(255,78,78,.85) !important;
}
@keyframes livePulse {
  0%, 100% { opacity: 1; }
  50% { opacity: .7; }
}
.video-card-live { border-color: rgba(255,78,78,.3) !important; }

/* ---- section-tab-header（无padding-bottom） ---- */
.section-tab-header { padding-bottom: 0; }

/* ---- 标签云居中 ---- */
.tag-cloud-center { justify-content: center; }

/* ---- 联系区QR块 ---- */
.contact-qr-block { }
.contact-qr-title {
  font-size: 1.1rem;
  font-weight: 900;
  margin-bottom: 16px;
  color: var(--dark);
}
.qr-row-contact {
  display: flex;
  gap: 24px;
  flex-wrap: wrap;
  margin-bottom: 24px;
}
.8qx5s {
  width: 140px;
  height: 140px;
  border-radius: 10px;
  border: 2px solid #F0D0DC;
}
.mt7w3jb8 {
  font-size: .85rem;
  color: var(--gray);
  margin-top: 8px;
  font-weight: 600;
  text-align: center;
}
.app-download-block {
  background: var(--white);
  border-radius: var(--radius);
  padding: 20px;
  border: 1px solid #F0D0DC;
}
.app-download-title {
  font-size: .95rem;
  font-weight: 800;
  margin-bottom: 10px;
  color: var(--dark);
}
.app-download-desc {
  font-size: .86rem;
  color: var(--gray);
  line-height: 1.7;
  margin-bottom: 14px;
}
.app-btns { display: flex; gap: 10px; flex-wrap: wrap; }
.btn-app { font-size: .85rem; padding: 10px 20px; }

/* ---- 分享区 ---- */
.share-section { margin-top: 24px; }
.share-title {
  font-size: .95rem;
  font-weight: 800;
  margin-bottom: 12px;
  color: var(--dark);
}

/* ---- HowTo区 ---- */
.howto-section { margin-top: 56px; }
.howto-title {
  font-size: clamp(1.3rem, 2.5vw, 1.7rem);
  font-weight: 900;
  color: var(--dark);
  margin-bottom: 10px;
}
.howto-title span { color: var(--pink); }

/* ---- 视频播放器增强（内页） ---- */
.video-player-wrap video {
  background: #000;
}
.video-player-wrap video:focus { outline: 2px solid var(--pink); }

/* ---- 视频标签（内页详情） ---- */
.video-tags-row {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 14px 0;
}
.video-tag-item {
  background: var(--pink-pale);
  color: var(--pink);
  font-size: .78rem;
  font-weight: 700;
  padding: 4px 12px;
  border-radius: 16px;
  border: 1px solid var(--pink-light);
}

/* ---- 视频描述（SEO文本） ---- */
.video-desc-block {
  background: var(--gray-light);
  border-radius: var(--radius);
  padding: 16px 18px;
  margin: 16px 0;
  font-size: .88rem;
  color: var(--gray);
  line-height: 1.8;
}
.video-desc-block strong { color: var(--dark); }

/* ---- 面包屑 JSON-LD 辅助 ---- */
.breadcrumb-schema { display: none; }

/* ---- 百度主动推送提示 ---- */
.baidu-push-notice { display: none; }

/* ---- 移动端增强 ---- */
@media (max-width: 768px) {
  .footer-grid { grid-template-columns: 1fr; gap: 24px; }
  .contact-grid { grid-template-columns: 1fr; gap: 24px; }
  .qr-row-contact { gap: 16px; }
  .app-btns { flex-direction: column; }
  .howto-steps { grid-template-columns: 1fr 1fr; }
  .footer-links-row { display: none; }
}
@media (max-width: 480px) {
  .howto-steps { grid-template-columns: 1fr; }
  .8qx5s { width: 120px; height: 120px; }
  .footer-qr-row { gap: 12px; }
  .m4u1bxg5 { width: 80px; height: 80px; }
}

/* ---- 视频SEO强调（百度视频收录辅助） ---- */
.video-seo-hint {
  display: none; /* 隐藏但保留在DOM中供搜索引擎读取 */
}
/* 视频内容标注 */
[itemtype="https://schema.org/VideoObject"] { position: relative; }

/* ================================================================
   瓜老师 - 视频详情页专用样式 | vbsfly.cn
   ================================================================ */

/* ---- 视频详情标题 ---- */
.video-detail-title {
  font-size: clamp(1.1rem, 2.5vw, 1.4rem);
  font-weight: 800;
  color: var(--dark);
  line-height: 1.5;
  margin: 16px 0 12px;
}

/* ---- 视频详情元信息 ---- */
.video-detail-meta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 12px;
  margin-bottom: 16px;
  padding-bottom: 16px;
  border-bottom: 1px solid #F0D0DC;
}
.video-detail-stats {
  display: flex;
  align-items: center;
  gap: 14px;
  flex-wrap: wrap;
  font-size: .86rem;
  color: var(--gray);
}
.vd-tag {
  background: var(--pink);
  color: var(--white);
  font-size: .75rem;
  font-weight: 700;
  padding: 3px 10px;
  border-radius: 5px;
}
.video-detail-actions {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}
.action-btn {
  padding: 7px 14px;
  border-radius: 20px;
  font-size: .82rem;
  font-weight: 700;
  border: 1.5px solid #F0D0DC;
  color: var(--dark);
  background: var(--white);
  cursor: pointer;
  transition: all var(--transition);
}
.action-btn:hover {
  border-color: var(--pink);
  color: var(--pink);
}

/* ---- 作者卡片 ---- */
.video-author-card {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 16px 18px;
  background: var(--pink-pale);
  border-radius: var(--radius);
  margin-bottom: 16px;
  border: 1px solid #F0D0DC;
}
.author-avatar {
  width: 52px;
  height: 52px;
  border-radius: 50%;
  object-fit: cover;
  border: 2px solid var(--pink-light);
  flex-shrink: 0;
}
.author-info { flex: 1; }
.author-name {
  font-weight: 800;
  color: var(--dark);
  font-size: .95rem;
  margin-bottom: 3px;
}
.author-desc {
  font-size: .8rem;
  color: var(--gray);
}

/* ---- 评论区 ---- */
.comment-section { margin-top: 24px; }
.comment-title {
  font-size: 1.1rem;
  font-weight: 800;
  color: var(--dark);
  margin-bottom: 16px;
}
.comment-input-row {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 20px;
}
.comment-input {
  flex: 1;
  padding: 10px 16px;
  border: 1.5px solid #F0D0DC;
  border-radius: 24px;
  outline: none;
  font-size: .9rem;
  transition: border-color var(--transition);
}
.comment-input:focus { border-color: var(--pink); }
.comment-submit { font-size: .85rem; padding: 9px 18px; }
.comment-list { }
.comment-item {
  display: flex;
  gap: 12px;
  margin-bottom: 16px;
  padding-bottom: 16px;
  border-bottom: 1px solid #F0D0DC;
}
.comment-body { flex: 1; }
.comment-user {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 6px;
  font-weight: 700;
  font-size: .88rem;
  color: var(--dark);
}
.comment-time { font-size: .78rem; color: #aaa; font-weight: 400; }
.comment-body p { font-size: .88rem; color: #444; line-height: 1.6; }
.comment-actions { margin-top: 8px; font-size: .8rem; color: #aaa; }

/* ---- 视频主列（左侧） ---- */
.video-main-col { min-width: 0; }

/* ---- 响应式：详情页 ---- */
@media (max-width: 768px) {
  .video-detail-meta { flex-direction: column; align-items: flex-start; }
  .video-author-card { flex-wrap: wrap; }
  .comment-input-row { flex-wrap: wrap; }
  .comment-input { width: 100%; }
}

/* ================================================================
   瓜老师 - 关于我们页面专用样式 | vbsfly.cn
   ================================================================ */

/* ---- 品牌故事文本 ---- */
.about-story-text {
  max-width: 800px;
  margin: 0 auto;
  line-height: 1.9;
  color: #444;
}
.about-story-text p {
  margin-bottom: 16px;
}

/* ---- 核心数据网格 ---- */
.about-stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 20px;
}
.about-stat-card {
  background: var(--white);
  border-radius: var(--radius);
  padding: 28px;
  box-shadow: 0 4px 20px rgba(255, 78, 139, .08);
  text-align: center;
  border: 1px solid #F0D0DC;
  transition: transform var(--transition), box-shadow var(--transition);
}
.about-stat-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 8px 30px rgba(255, 78, 139, .15);
}
.about-stat-num {
  display: block;
  font-size: 2rem;
  font-weight: 900;
  color: var(--pink);
  margin-bottom: 8px;
}
.about-stat-label {
  font-size: .88rem;
  color: var(--gray);
  font-weight: 600;
}

/* ---- 发展历程时间线 ---- */
.about-timeline {
  max-width: 700px;
  margin: 0 auto;
}
.timeline-item {
  display: flex;
  gap: 20px;
  margin-bottom: 24px;
  align-items: flex-start;
}
.timeline-year {
  background: var(--pink);
  color: var(--white);
  font-weight: 800;
  padding: 8px 14px;
  border-radius: 8px;
  font-size: .9rem;
  flex-shrink: 0;
  min-width: 56px;
  text-align: center;
}
.timeline-event {
  padding-top: 8px;
  color: #444;
  line-height: 1.7;
  font-size: .92rem;
}

/* ---- 联系我们 ---- */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 40px;
  align-items: start;
}
.contact-info-block h3 {
  font-size: 1.1rem;
  font-weight: 800;
  color: var(--dark);
  margin-bottom: 16px;
}
.contact-list {
  list-style: none;
  padding: 0;
  margin: 0;
}
.contact-list li {
  padding: 10px 0;
  border-bottom: 1px solid #F0D0DC;
  font-size: .9rem;
  color: #444;
}
.contact-list li a {
  color: var(--pink);
  text-decoration: none;
}
.contact-list li a:hover { text-decoration: underline; }

.contact-qr-block {
  display: flex;
  gap: 24px;
  justify-content: center;
  flex-wrap: wrap;
}

/* ---- 响应式 ---- */
@media (max-width: 768px) {
  .contact-grid { grid-template-columns: 1fr; }
  .about-stats-grid { grid-template-columns: repeat(2, 1fr); }
  .timeline-item { flex-direction: column; gap: 8px; }
}
@media (max-width: 480px) {
  .about-stats-grid { grid-template-columns: 1fr 1fr; }
}

/* ================================================================
   瓜老师 - 404页面 / 工具页 / 社区页 补充样式 | vbsfly.cn
   ================================================================ */

/* ---- 404页面 ---- */
.error-404-section {
  min-height: 60vh;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 60px 20px;
}
.error-404-num {
  font-size: clamp(4rem, 15vw, 8rem);
  font-weight: 900;
  background: linear-gradient(135deg, #FF4E8B, #C2185B);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  line-height: 1;
  margin-bottom: 16px;
}
.error-404-title {
  font-size: clamp(1.2rem, 3vw, 1.8rem);
  font-weight: 800;
  color: var(--dark);
  margin-bottom: 10px;
}
.error-404-desc {
  color: var(--gray);
  margin-bottom: 28px;
  font-size: .95rem;
}
.error-404-actions {
  display: flex;
  gap: 14px;
  justify-content: center;
  flex-wrap: wrap;
  margin-bottom: 32px;
}
.btn-outline-pink {
  border-color: var(--pink);
  color: var(--pink);
}
.error-404-links {
  color: var(--gray);
  font-size: .88rem;
}
.error-404-links a {
  color: var(--pink);
  margin: 0 8px;
  text-decoration: none;
  font-weight: 600;
}
.error-404-links a:hover { text-decoration: underline; }

/* ---- 工具页AI按钮 ---- */
.ai-tool-btn {
  margin-top: 16px;
  display: inline-block;
}

/* ---- 工具页CTA区 ---- */
.section-cta {
  text-align: center;
  margin-top: 32px;
}
.btn-primary-lg {
  font-size: 1rem;
  padding: 14px 40px;
}

/* ---- 社区页直播标签 ---- */
.27o5fko1 {
  background: #FF4E4E !important;
}
.uig8n03h {
  background: #FF4E4E !important;
}
.p3ugglxf {
  color: #FF4E4E;
  font-weight: 700;
}

/* ---- 社区页按钮 ---- */
.community-btn {
  margin-top: 14px;
  display: inline-block;
}

/* ---- tab-bar margin ---- */
.2vsj40on.p442xy {
  margin-bottom: 28px;
}

/* ---- tag-count ---- */
.k19gjk {
  color: var(--pink);
  font-size: .75rem;
  margin-left: 4px;
}