/* sm视频视频 - 原创样式表 conyww.cn */
/* === 品牌色彩系统 === */
:root {
  --hj-dark: #1a1a3e;
  --hj-deep: #2d1b69;
  --hj-teal: #0d7377;
  --hj-gold: #e8d5b7;
  --hj-cream: #f4e4c1;
  --hj-light: #f8f6f3;
  --hj-gray: #6b6b80;
  --hj-border: #e0ddd5;
  --hj-white: #ffffff;
  --hj-shadow: 0 2px 12px rgba(26,26,62,0.08);
  --hj-shadow-lg: 0 8px 32px rgba(26,26,62,0.15);
  --hj-radius: 12px;
  --hj-radius-sm: 8px;
  --hj-transition: all 0.3s cubic-bezier(0.23,1,0.32,1);
}
/* === 基础重置 === */
*,*::before,*::after { margin:0; padding:0; box-sizing:border-box; }
html { font-size:16px; -webkit-text-size-adjust:100%; }
body {
  font-family: "PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;
  background: var(--hj-light);
  color: var(--hj-dark);
  line-height:1.7;
  overflow-x:hidden;
}
a { color:var(--hj-teal); text-decoration:none; transition:var(--hj-transition); }
a:hover { color:var(--hj-deep); }
img { max-width:100%; height:auto; display:block; }
ul,ol { list-style:none; }
/* === 布局容器 === */
.hj-container { max-width:1200px; margin:0 auto; padding:0 20px; }
.hj-section { padding:60px 0; }
.hj-section-lg { padding:80px 0; }
.hj-text-center { text-align:center; }
.hj-clearfix::after { content:""; display:table; clear:both; }
/* === 头部导航 === */
.hj-header {
  background: var(--hj-white);
  box-shadow: var(--hj-shadow);
  position: sticky;
  top: 0;
  z-index: 1000;
}
.hj-header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 70px;
  max-width:1200px;
  margin:0 auto;
  padding:0 20px;
}
.hj-logo { display:flex; align-items:center; gap:10px; }
.hj-logo img { height:42px; }
.hj-nav-list {
  display:flex;
  align-items:center;
  gap:28px;
}
.hj-nav-list a {
  font-size:15px;
  color:var(--hj-dark);
  font-weight:500;
  position:relative;
  padding:4px 0;
}
.hj-nav-list a::after {
  content:"";
  position:absolute;
  bottom:-2px;
  left:0;
  width:0;
  height:2px;
  background:var(--hj-teal);
  transition:width 0.3s ease;
}
.hj-nav-list a:hover::after { width:100%; }
.hj-nav-list a:hover { color:var(--hj-teal); }
.hj-menu-toggle {
  display:none;
  font-size:24px;
  background:none;
  border:none;
  cursor:pointer;
  color:var(--hj-dark);
}
/* === 搜索框 === */
.hj-search-bar {
  background:var(--hj-light);
  padding:16px 0;
  border-bottom:1px solid var(--hj-border);
}
.hj-search-form {
  max-width:600px;
  margin:0 auto;
  display:flex;
  gap:0;
  border-radius:var(--hj-radius-sm);
  overflow:hidden;
  box-shadow:var(--hj-shadow);
}
.hj-search-input {
  flex:1;
  padding:12px 20px;
  border:2px solid var(--hj-teal);
  border-right:none;
  font-size:14px;
  outline:none;
  background:var(--hj-white);
  color:var(--hj-dark);
}
.hj-search-input::placeholder { color:var(--hj-gray); }
.hj-search-btn {
  padding:12px 28px;
  background:var(--hj-teal);
  color:var(--hj-white);
  border:none;
  font-size:14px;
  cursor:pointer;
  transition:var(--hj-transition);
}
.hj-search-btn:hover { background:var(--hj-deep); }
.hj-pulse { animation:hj-pulse 0.3s ease; }
@keyframes hj-pulse { 0%,100%{transform:scale(1)} 50%{transform:scale(0.95)} }
/* === Hero区域 === */
.hj-hero {
  background: linear-gradient(135deg, var(--hj-dark) 0%, var(--hj-deep) 50%, var(--hj-teal) 100%);
  color:var(--hj-gold);
  padding:80px 0 100px;
  position:relative;
  overflow:hidden;
}
.hj-hero::before {
  content:"";
  position:absolute;
  top:-50%;
  right:-20%;
  width:600px;
  height:600px;
  background:radial-gradient(circle, rgba(232,213,183,0.08) 0%, transparent 70%);
  border-radius:50%;
}
.hj-hero h1 {
  font-size:42px;
  font-weight:700;
  margin-bottom:16px;
  letter-spacing:2px;
}
.hj-hero h1 span { color:var(--hj-cream); }
.hj-hero p {
  font-size:18px;
  color:var(--hj-gold);
  opacity:0.85;
  max-width:600px;
  margin-bottom:32px;
}
.hj-hero-tags { display:flex; gap:12px; flex-wrap:wrap; margin-bottom:32px; }
.hj-hero-tag {
  padding:6px 16px;
  background:rgba(232,213,183,0.15);
  border:1px solid rgba(232,213,183,0.3);
  border-radius:20px;
  font-size:13px;
  color:var(--hj-gold);
}
.hj-hero-stats { display:flex; gap:40px; margin-top:40px; }
.hj-hero-stat { text-align:center; }
.hj-hero-stat-num { font-size:32px; font-weight:700; color:var(--hj-cream); }
.hj-hero-stat-label { font-size:13px; color:var(--hj-gold); opacity:0.7; }
/* === 标题样式 === */
.hj-section-title {
  font-size:28px;
  font-weight:700;
  color:var(--hj-dark);
  margin-bottom:12px;
  text-align:center;
}
.hj-section-title span { color:var(--hj-teal); }
.hj-section-subtitle {
  font-size:15px;
  color:var(--hj-gray);
  text-align:center;
  margin-bottom:40px;
}
.hj-section-header { margin-bottom:40px; }
/* === 视频卡片 === */
.hj-video-grid {
  display:grid;
  grid-template-columns:repeat(4,1fr);
  gap:24px;
}
.hj-video-card {
  background:var(--hj-white);
  border-radius:var(--hj-radius);
  overflow:hidden;
  box-shadow:var(--hj-shadow);
  cursor:pointer;
  transition:var(--hj-transition);
  position:relative;
}
.hj-video-card:hover {
  transform:translateY(-4px);
  box-shadow:var(--hj-shadow-lg);
}
.hj-video-thumb {
  position:relative;
  width:100%;
  padding-top:56.25%;
  background:linear-gradient(135deg, var(--hj-dark), var(--hj-teal));
  overflow:hidden;
}
.hj-video-thumb img {
  position:absolute;
  top:0; left:0;
  width:100%; height:100%;
  object-fit:cover;
}
.hj-video-overlay {
  position:absolute;
  top:0; left:0;
  width:100%; height:100%;
  background:rgba(26,26,62,0.5);
  display:flex;
  align-items:center;
  justify-content:center;
  opacity:0;
  pointer-events:none;
  transition:opacity 0.22s cubic-bezier(0.23, 1, 0.32, 1);
}
.hj-video-card:hover .hj-video-overlay,
.hj-video-card:focus-within .hj-video-overlay {
  opacity:1;
}
.hj-play-btn {
  width:56px; height:56px;
  background:rgba(255,255,255,0.9);
  border-radius:50%;
  display:flex;
  align-items:center;
  justify-content:center;
}
.hj-play-btn::after {
  content:"";
  width:0; height:0;
  border-left:18px solid var(--hj-teal);
  border-top:12px solid transparent;
  border-bottom:12px solid transparent;
  margin-left:4px;
}
.hj-video-info { padding:16px; }
.hj-video-title {
  font-size:15px;
  font-weight:600;
  color:var(--hj-dark);
  margin-bottom:8px;
  overflow:hidden;
  text-overflow:ellipsis;
  white-space:nowrap;
}
.hj-video-meta {
  display:flex;
  justify-content:space-between;
  font-size:12px;
  color:var(--hj-gray);
}
.hj-video-meta span { display:flex; align-items:center; gap:4px; }
.hj-video-badge {
  position:absolute;
  top:10px; left:10px;
  padding:3px 10px;
  background:var(--hj-teal);
  color:var(--hj-white);
  font-size:11px;
  border-radius:4px;
  z-index:2;
}
/* === 模块卡片 === */
.hj-module-grid {
  display:grid;
  grid-template-columns:repeat(3,1fr);
  gap:28px;
}
.hj-module-card {
  background:var(--hj-white);
  border-radius:var(--hj-radius);
  padding:32px;
  box-shadow:var(--hj-shadow);
  transition:var(--hj-transition);
  border-top:4px solid var(--hj-teal);
}
.hj-module-card:hover {
  transform:translateY(-4px);
  box-shadow:var(--hj-shadow-lg);
}
.hj-module-card:nth-child(2) { border-top-color:var(--hj-deep); }
.hj-module-card:nth-child(3) { border-top-color:var(--hj-gold); }
.hj-module-card:nth-child(4) { border-top-color:var(--hj-teal); }
.hj-module-icon {
  width:48px; height:48px;
  border-radius:12px;
  background:linear-gradient(135deg, var(--hj-teal), var(--hj-deep));
  display:flex; align-items:center; justify-content:center;
  font-size:22px;
  color:var(--hj-gold);
  margin-bottom:20px;
}
.hj-module-card h3 {
  font-size:20px;
  font-weight:700;
  color:var(--hj-dark);
  margin-bottom:12px;
}
.hj-module-card p {
  font-size:14px;
  color:var(--hj-gray);
  line-height:1.8;
  margin-bottom:16px;
}
.hj-module-card ul { margin-bottom:16px; }
.hj-module-card ul li {
  font-size:13px;
  color:var(--hj-dark);
  padding:6px 0;
  padding-left:20px;
  position:relative;
}
.hj-module-card ul li::before {
  content:"";
  position:absolute;
  left:0; top:50%;
  transform:translateY(-50%);
  width:6px; height:6px;
  border-radius:50%;
  background:var(--hj-teal);
}
.hj-module-link {
  display:inline-block;
  font-size:14px;
  color:var(--hj-teal);
  font-weight:600;
}
.hj-module-link:hover { color:var(--hj-deep); }
/* === 专家展示 === */
.hj-expert-grid {
  display:grid;
  grid-template-columns:repeat(3,1fr);
  gap:28px;
}
.hj-expert-card {
  background:var(--hj-white);
  border-radius:var(--hj-radius);
  padding:28px;
  box-shadow:var(--hj-shadow);
  text-align:center;
  transition:var(--hj-transition);
}
.hj-expert-card:hover { box-shadow:var(--hj-shadow-lg); transform:translateY(-2px); }
.hj-expert-avatar {
  width:100px; height:100px;
  border-radius:50%;
  margin:0 auto 16px;
  overflow:hidden;
  border:3px solid var(--hj-gold);
}
.hj-expert-avatar img { width:100%; height:100%; object-fit:cover; }
.hj-expert-name {
  font-size:18px;
  font-weight:700;
  color:var(--hj-dark);
  margin-bottom:4px;
}
.hj-expert-role {
  font-size:13px;
  color:var(--hj-teal);
  margin-bottom:12px;
}
.hj-expert-desc {
  font-size:13px;
  color:var(--hj-gray);
  margin-bottom:16px;
  text-align:left;
}
.hj-expert-tags { display:flex; flex-wrap:wrap; gap:6px; margin-bottom:16px; justify-content:center; }
.hj-expert-tag {
  padding:3px 10px;
  background:var(--hj-light);
  border:1px solid var(--hj-border);
  border-radius:4px;
  font-size:11px;
  color:var(--hj-gray);
}
.hj-expert-btns { display:flex; gap:10px; justify-content:center; }
.hj-btn-sm {
  padding:8px 18px;
  border-radius:var(--hj-radius-sm);
  font-size:13px;
  border:none;
  cursor:pointer;
  transition:var(--hj-transition);
}
.hj-btn-primary { background:var(--hj-teal); color:var(--hj-white); }
.hj-btn-primary:hover { background:var(--hj-deep); }
.hj-btn-outline { background:transparent; border:1px solid var(--hj-teal); color:var(--hj-teal); }
.hj-btn-outline:hover { background:var(--hj-teal); color:var(--hj-white); }
/* === FAQ === */
.hj-faq-list { max-width:800px; margin:0 auto; }
.hj-faq-item {
  background:var(--hj-white);
  border-radius:var(--hj-radius-sm);
  margin-bottom:12px;
  overflow:hidden;
  box-shadow:var(--hj-shadow);
}
.hj-faq-q {
  padding:18px 24px;
  font-size:15px;
  font-weight:600;
  color:var(--hj-dark);
  cursor:pointer;
  display:flex;
  justify-content:space-between;
  align-items:center;
  transition:var(--hj-transition);
}
.hj-faq-q:hover { background:var(--hj-light); }
.hj-faq-q::after { content:"+"; font-size:20px; color:var(--hj-teal); }
.hj-faq-item.active .hj-faq-q::after { content:"-"; }
.hj-faq-a {
  padding:0 24px 18px;
  font-size:14px;
  color:var(--hj-gray);
  line-height:1.8;
  display:none;
}
/* === 用户评论 === */
.hj-comment-grid {
  display:grid;
  grid-template-columns:repeat(2,1fr);
  gap:20px;
}
.hj-comment-card {
  background:var(--hj-white);
  border-radius:var(--hj-radius);
  padding:24px;
  box-shadow:var(--hj-shadow);
}
.hj-comment-header {
  display:flex;
  align-items:center;
  gap:12px;
  margin-bottom:14px;
}
.hj-comment-avatar {
  width:40px; height:40px;
  border-radius:50%;
  background:linear-gradient(135deg, var(--hj-teal), var(--hj-deep));
  display:flex; align-items:center; justify-content:center;
  color:var(--hj-gold);
  font-size:16px;
  font-weight:700;
}
.hj-comment-name { font-size:14px; font-weight:600; color:var(--hj-dark); }
.hj-comment-date { font-size:12px; color:var(--hj-gray); }
.hj-comment-text { font-size:14px; color:var(--hj-dark); line-height:1.7; }
.hj-comment-rating { color:var(--hj-gold); font-size:14px; margin-bottom:8px; }
/* === 合作Logo墙 === */
.hj-partner-grid {
  display:flex;
  flex-wrap:wrap;
  justify-content:center;
  gap:20px;
}
.hj-partner-grid img {
  height:50px;
  opacity:0.7;
  transition:var(--hj-transition);
}
.hj-partner-grid img:hover { opacity:1; transform:scale(1.05); }
/* === 联系我们 === */
.hj-contact-grid {
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:40px;
  align-items:start;
}
.hj-contact-info { padding:20px 0; }
.hj-contact-info h3 { font-size:20px; color:var(--hj-dark); margin-bottom:16px; }
.hj-contact-item {
  display:flex;
  align-items:flex-start;
  gap:12px;
  padding:12px 0;
  border-bottom:1px solid var(--hj-border);
}
.hj-contact-item:last-child { border-bottom:none; }
.hj-contact-label { font-size:14px; color:var(--hj-gray); min-width:80px; }
.hj-contact-value { font-size:14px; color:var(--hj-dark); font-weight:500; }
.hj-contact-qr { text-align:center; }
.hj-contact-qr img { width:160px; height:160px; margin:0 auto 12px; }
.hj-contact-qr p { font-size:13px; color:var(--hj-gray); }
.hj-qr-row { display:flex; gap:40px; justify-content:center; }
/* === 社交分享 === */
.hj-share-bar { display:flex; gap:12px; justify-content:center; align-items:center; }
.hj-share-btn {
  width:36px; height:36px;
  border-radius:50%;
  display:flex; align-items:center; justify-content:center;
  cursor:pointer;
  transition:var(--hj-transition);
  border:none;
  background:transparent;
}
.hj-share-btn:hover { transform:scale(1.1); }
.hj-share-btn img { width:32px; height:32px; }
/* === 页脚 === */
.hj-footer {
  background:var(--hj-dark);
  color:var(--hj-gold);
  padding:50px 0 24px;
}
.hj-footer-grid {
  display:grid;
  grid-template-columns:2fr 1fr 1fr 1fr;
  gap:40px;
  margin-bottom:32px;
}
.hj-footer-col h4 {
  font-size:16px;
  color:var(--hj-cream);
  margin-bottom:16px;
}
.hj-footer-col p { font-size:13px; color:var(--hj-gold); opacity:0.7; line-height:1.8; margin-bottom:8px; }
.hj-footer-col a { font-size:13px; color:var(--hj-gold); opacity:0.7; display:block; padding:4px 0; }
.hj-footer-col a:hover { opacity:1; color:var(--hj-cream); }
.hj-footer-logo { margin-bottom:16px; }
.hj-footer-bottom {
  border-top:1px solid rgba(232,213,183,0.15);
  padding-top:20px;
  text-align:center;
  font-size:13px;
  color:var(--hj-gold);
  opacity:0.6;
}
.hj-footer-bottom p { margin-bottom:6px; }
.hj-update-time { color:var(--hj-cream); font-weight:600; }
/* === 面包屑 === */
.hj-breadcrumb {
  background:var(--hj-light);
  padding:14px 0;
  font-size:13px;
  color:var(--hj-gray);
}
.hj-breadcrumb a { color:var(--hj-teal); }
.hj-breadcrumb span { margin:0 8px; }
/* === 内页通用 === */
.hj-page-header {
  background:linear-gradient(135deg, var(--hj-dark), var(--hj-deep));
  color:var(--hj-gold);
  padding:60px 0;
  text-align:center;
}
.hj-page-header h1 { font-size:32px; margin-bottom:12px; color:var(--hj-cream); }
.hj-page-header p { font-size:16px; opacity:0.8; max-width:700px; margin:0 auto; }
.hj-page-intro {
  background:var(--hj-white);
  border-radius:var(--hj-radius);
  padding:32px;
  box-shadow:var(--hj-shadow);
  margin-bottom:40px;
  font-size:15px;
  color:var(--hj-dark);
  line-height:1.9;
}
.hj-page-intro h2 { font-size:22px; margin-bottom:16px; color:var(--hj-dark); }
.hj-content-block { margin-bottom:40px; }
.hj-content-block h2 { font-size:22px; color:var(--hj-dark); margin-bottom:16px; }
.hj-content-block h3 { font-size:18px; color:var(--hj-dark); margin:20px 0 12px; }
.hj-content-block p { font-size:15px; color:var(--hj-dark); line-height:1.9; margin-bottom:14px; }
.hj-content-block ul { padding-left:20px; margin-bottom:16px; }
.hj-content-block ul li { font-size:14px; color:var(--hj-dark); padding:6px 0; list-style:disc; }
/* === 标签 === */
.hj-tags { display:flex; flex-wrap:wrap; gap:8px; margin:20px 0; }
.hj-tag {
  padding:4px 14px;
  background:var(--hj-light);
  border:1px solid var(--hj-border);
  border-radius:20px;
  font-size:12px;
  color:var(--hj-gray);
}
.hj-tag:hover { background:var(--hj-teal); color:var(--hj-white); border-color:var(--hj-teal); }
/* === 问答区域 === */
.hj-qa-list { max-width:800px; margin:0 auto; }
.hj-qa-item {
  background:var(--hj-white);
  border-radius:var(--hj-radius-sm);
  padding:20px 24px;
  margin-bottom:16px;
  box-shadow:var(--hj-shadow);
}
.hj-qa-q { font-size:15px; font-weight:600; color:var(--hj-dark); margin-bottom:10px; }
.hj-qa-q::before { content:"Q: "; color:var(--hj-teal); font-weight:700; }
.hj-qa-a { font-size:14px; color:var(--hj-gray); line-height:1.8; }
.hj-qa-a::before { content:"A: "; color:var(--hj-deep); font-weight:700; }
/* === 返回顶部 === */
.hj-back-top {
  position:fixed;
  bottom:30px;
  right:30px;
  width:44px;
  height:44px;
  background:var(--hj-teal);
  color:var(--hj-white);
  border-radius:50%;
  display:none;
  align-items:center;
  justify-content:center;
  font-size:20px;
  cursor:pointer;
  box-shadow:var(--hj-shadow-lg);
  z-index:999;
  transition:var(--hj-transition);
}
.hj-back-top:hover { background:var(--hj-deep); }
/* === 响应式 === */
@media (max-width:1024px) {
  .hj-video-grid { grid-template-columns:repeat(3,1fr); }
  .hj-module-grid { grid-template-columns:repeat(2,1fr); }
  .hj-expert-grid { grid-template-columns:repeat(2,1fr); }
  .hj-footer-grid { grid-template-columns:repeat(2,1fr); }
}
@media (max-width:768px) {
  .hj-header-inner { height:60px; }
  .hj-nav-list {
    display:none;
    position:absolute;
    top:60px;
    left:0;
    width:100%;
    background:var(--hj-white);
    flex-direction:column;
    padding:20px;
    box-shadow:var(--hj-shadow-lg);
    gap:16px;
  }
  .hj-nav-open { display:flex; }
  .hj-menu-toggle { display:block; }
  .hj-hero h1 { font-size:28px; }
  .hj-hero p { font-size:15px; }
  .hj-hero-stats { gap:20px; }
  .hj-hero-stat-num { font-size:24px; }
  .hj-video-grid { grid-template-columns:repeat(2,1fr); gap:16px; }
  .hj-module-grid { grid-template-columns:1fr; }
  .hj-expert-grid { grid-template-columns:1fr; }
  .hj-comment-grid { grid-template-columns:1fr; }
  .hj-contact-grid { grid-template-columns:1fr; }
  .hj-footer-grid { grid-template-columns:1fr; gap:24px; }
  .hj-qr-row { flex-direction:column; gap:24px; }
  .hj-section { padding:40px 0; }
  .hj-section-title { font-size:22px; }
  .hj-page-header h1 { font-size:24px; }
  .hj-page-header p { font-size:14px; }
}
@media (max-width:480px) {
  .hj-video-grid { grid-template-columns:1fr; }
  .hj-hero h1 { font-size:22px; }
  .hj-container { padding:0 14px; }
}