/* ============================================================
   四虎 - 全局样式表（外部CSS，唯一样式文件）
   原创主题：玫瑰糖心配色 | 影视传媒社区风格
   品牌：四虎 | 域名：igs5w4.cn
   百度SEO EEAT标准 | 移动端优先响应式设计
   ============================================================ */

/* ---------- CSS 变量（原创配色）---------- */
:root {
  --primary:        #e8295a;
  --primary-light:  #ff6b8a;
  --primary-dark:   #b8163f;
  --secondary:      #ff9eb5;
  --accent:         #7c3aed;
  --accent-light:   #a78bfa;
  --gold:           #f59e0b;
  --teal:           #0ea5e9;
  --bg-dark:        #0d0d1a;
  --bg-card:        #161628;
  --bg-card2:       #1e1e35;
  --bg-card3:       #12121f;
  --text-main:      #f0f0f8;
  --text-muted:     #9090b0;
  --text-light:     #c8c8e0;
  --border:         rgba(232,41,90,0.18);
  --border-subtle:  rgba(255,255,255,0.06);
  --shadow:         0 4px 24px rgba(232,41,90,0.15);
  --shadow-lg:      0 12px 48px rgba(0,0,0,0.4);
  --radius:         12px;
  --radius-lg:      20px;
  --radius-xl:      28px;
  --transition:     0.3s cubic-bezier(.4,0,.2,1);
  --font-main:      'PingFang SC','Microsoft YaHei','Helvetica Neue',Arial,sans-serif;
  --header-h:       68px;
}

/* ---------- Reset & Base ---------- */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; font-size: 16px; -webkit-text-size-adjust: 100%; }
body {
  font-family: var(--font-main);
  background: var(--bg-dark);
  color: var(--text-main);
  line-height: 1.7;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}
a { color: var(--primary-light); text-decoration: none; transition: color var(--transition); }
a:hover { color: var(--secondary); }
a:focus-visible { outline: 2px solid var(--primary); outline-offset: 3px; border-radius: 4px; }
img { max-width: 100%; height: auto; display: block; }
ul { list-style: none; }
button { cursor: pointer; font-family: var(--font-main); border: none; background: none; }
input, textarea, select { font-family: var(--font-main); }

/* ---------- 滚动条 ---------- */
::-webkit-scrollbar { width: 6px; }
::-webkit-scrollbar-track { background: var(--bg-dark); }
::-webkit-scrollbar-thumb { background: var(--primary); border-radius: 3px; }

/* ---------- 排版 ---------- */
h1,h2,h3,h4,h5,h6 { font-weight: 700; line-height: 1.3; color: var(--text-main); }
h1 { font-size: clamp(1.8rem, 4vw, 3rem); }
h2 { font-size: clamp(1.4rem, 3vw, 2.2rem); }
h3 { font-size: clamp(1.1rem, 2vw, 1.5rem); }
h4 { font-size: 1.05rem; }
h5 { font-size: 0.95rem; }
h6 { font-size: 0.88rem; }
p  { color: var(--text-light); margin-bottom: 1rem; }
p:last-child { margin-bottom: 0; }

/* ---------- 布局 ---------- */
.container { max-width: 1280px; margin: 0 auto; padding: 0 20px; }
.section    { padding: 72px 0; }
.section-sm { padding: 48px 0; }

/* ---------- 渐变文字 ---------- */
.ufw580 {
  background: linear-gradient(135deg, var(--primary-light), var(--accent-light));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

/* ---------- 按钮 ---------- */
.btn {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 12px 28px; border-radius: 50px; font-size: 0.95rem;
  font-weight: 600; border: none; transition: all var(--transition);
  white-space: nowrap; cursor: pointer;
}
.btn-primary {
  background: linear-gradient(135deg, var(--primary), var(--primary-dark));
  color: #fff; box-shadow: 0 4px 16px rgba(232,41,90,0.4);
}
.btn-primary:hover { transform: translateY(-2px); box-shadow: 0 8px 24px rgba(232,41,90,0.5); color: #fff; }
.btn-outline {
  background: transparent; color: var(--primary-light);
  border: 2px solid var(--primary-light);
}
.btn-outline:hover { background: var(--primary); color: #fff; border-color: var(--primary); }
.btn-ghost {
  background: rgba(255,255,255,0.08); color: var(--text-main);
  border: 1px solid rgba(255,255,255,0.12);
}
.btn-ghost:hover { background: rgba(255,255,255,0.15); color: #fff; }
.btn-sm { padding: 8px 18px; font-size: 0.85rem; }

/* ---------- Section Header ---------- */
.rxlxz { text-align: center; margin-bottom: 48px; }
.rxlxz .label {
  display: inline-block; padding: 4px 16px; border-radius: 50px;
  background: rgba(232,41,90,0.12); color: var(--primary-light);
  font-size: 0.82rem; font-weight: 600; letter-spacing: 1px;
  margin-bottom: 12px;
}
.rxlxz h2 { margin-bottom: 12px; }
.rxlxz p { color: var(--text-muted); max-width: 560px; margin: 0 auto; }

/* ============================================================
   HEADER / NAVBAR
   ============================================================ */
#site-header {
  position: fixed; top: 0; left: 0; right: 0; z-index: 1000;
  background: rgba(13,13,26,0.94);
  backdrop-filter: blur(18px) saturate(1.5);
  -webkit-backdrop-filter: blur(18px) saturate(1.5);
  border-bottom: 1px solid var(--border);
  transition: all var(--transition);
}
#site-header.scrolled {
  background: rgba(13,13,26,0.98);
  box-shadow: 0 2px 24px rgba(0,0,0,0.5);
}

.header-inner {
  display: flex; align-items: center; gap: 20px;
  height: var(--header-h); padding: 0 20px;
  max-width: 1280px; margin: 0 auto;
}

/* Logo区：导航小图标 + 主Logo图片 */
.site-logo {
  display: flex; align-items: center; gap: 8px; flex-shrink: 0;
  text-decoration: none;
}
.site-logo .mbhhqz2 {
  width: 28px; height: 28px; border-radius: 6px; object-fit: cover;
  flex-shrink: 0;
}
.site-logo .h6m8cxc {
  height: 36px; width: auto; max-width: 120px; object-fit: contain;
}
.site-logo .glyi8 {
  font-size: 1.2rem; font-weight: 800; display: flex; align-items: center;
}

/* 主导航 */
.nav-links { display: flex; align-items: center; gap: 2px; flex: 1; }
.nav-links a {
  padding: 6px 12px; border-radius: 8px; font-size: 0.88rem;
  font-weight: 500; color: var(--text-light);
  transition: all var(--transition); white-space: nowrap;
}
.nav-links a:hover,
.nav-links a.active {
  background: rgba(232,41,90,0.12); color: var(--primary-light);
}
.nav-links a.active { font-weight: 600; }

/* 搜索框 */
.header-search { position: relative; flex: 0 0 210px; }
.header-search input {
  width: 100%; padding: 8px 16px 8px 38px;
  background: rgba(255,255,255,0.07); border: 1px solid rgba(255,255,255,0.1);
  border-radius: 50px; color: var(--text-main); font-size: 0.86rem;
  outline: none; transition: all var(--transition);
}
.header-search input::placeholder { color: var(--text-muted); }
.header-search input:focus { border-color: var(--primary); background: rgba(232,41,90,0.08); }
.header-search .mz39cj {
  position: absolute; left: 11px; top: 50%; transform: translateY(-50%);
  color: var(--text-muted); pointer-events: none; display: flex;
}
.search-dropdown {
  display: none; position: absolute; top: calc(100% + 8px); left: 0; right: 0;
  background: var(--bg-card2); border: 1px solid var(--border);
  border-radius: var(--radius); overflow: hidden; z-index: 200;
  box-shadow: var(--shadow-lg);
}
.search-dropdown.show { display: block; }
.search-dropdown .kkkatli { padding: 8px 14px; font-size: 0.76rem; color: var(--text-muted); }
.search-dropdown a {
  display: flex; align-items: center; gap: 8px;
  padding: 9px 14px; font-size: 0.86rem; color: var(--text-light);
  transition: background var(--transition);
}
.search-dropdown a:hover { background: rgba(232,41,90,0.1); color: var(--primary-light); }
.search-dropdown a .tag {
  font-size: 0.68rem; padding: 1px 7px; border-radius: 50px;
  background: rgba(232,41,90,0.18); color: var(--primary-light); flex-shrink: 0;
}

/* Header Actions */
.header-actions { display: flex; align-items: center; gap: 8px; flex-shrink: 0; }

/* Mobile Toggle */
.nav-toggle {
  display: none; flex-direction: column; gap: 5px;
  padding: 6px; border-radius: 8px;
  transition: background var(--transition);
}
.nav-toggle:hover { background: rgba(255,255,255,0.08); }
.nav-toggle span { width: 22px; height: 2px; background: var(--text-main); border-radius: 2px; transition: all var(--transition); display: block; }

/* ============================================================
   PAGE HERO（内页顶部）
   ============================================================ */
.gab3yv3 {
  padding: calc(var(--header-h) + 48px) 0 48px;
  background: linear-gradient(135deg, var(--bg-dark) 0%, #1a0a2e 50%, #0d1a2e 100%);
  text-align: center;
  border-bottom: 1px solid var(--border-subtle);
}
.gab3yv3 h1 { margin-bottom: 12px; }
.gab3yv3 p { color: var(--text-muted); max-width: 560px; margin: 0 auto; }

/* ============================================================
   面包屑导航（百度SEO重要信号）
   ============================================================ */
.breadcrumb {
  display: flex; align-items: center; gap: 6px;
  font-size: 0.82rem; color: var(--text-muted);
  margin-bottom: 20px; flex-wrap: wrap;
}
.breadcrumb a { color: var(--text-muted); }
.breadcrumb a:hover { color: var(--primary-light); }
.breadcrumb .sep { color: rgba(255,255,255,0.2); }
.breadcrumb .current { color: var(--primary-light); }

/* ============================================================
   HERO SECTION（首页）
   ============================================================ */
.hero {
  position: relative; min-height: 100vh;
  display: flex; align-items: center;
  overflow: hidden; padding-top: var(--header-h);
}
.my6g0f6 {
  position: absolute; inset: 0; z-index: 0;
  background: linear-gradient(135deg, #0d0d1a 0%, #1a0a2e 50%, #0d1a2e 100%);
}
.my6g0f6 img {
  width: 100%; height: 100%; object-fit: cover;
  opacity: 0.22; mix-blend-mode: luminosity;
}
.my6g0f6::after {
  content: ''; position: absolute; inset: 0;
  background: linear-gradient(to right, rgba(13,13,26,0.96) 40%, rgba(13,13,26,0.35) 100%);
}
.nf8q3tb { position: relative; z-index: 1; max-width: 640px; }
.chtm111 {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 6px 16px; border-radius: 50px;
  background: rgba(232,41,90,0.12); border: 1px solid rgba(232,41,90,0.3);
  color: var(--primary-light); font-size: 0.82rem; font-weight: 600;
  margin-bottom: 20px;
}
.chtm111 .klrg1kqc { width: 6px; height: 6px; border-radius: 50%; background: var(--primary); animation: pulse 1.5s infinite; }
@keyframes pulse { 0%,100%{opacity:1;transform:scale(1)} 50%{opacity:.5;transform:scale(1.5)} }
.hero h1 { margin-bottom: 20px; }
.hero p { font-size: 1.05rem; color: var(--text-light); margin-bottom: 32px; max-width: 500px; }
.kswrdyyi { display: flex; gap: 14px; flex-wrap: wrap; margin-bottom: 48px; }
.wxihba { display: flex; gap: 32px; flex-wrap: wrap; }
.wxihba .stat .num { font-size: 1.8rem; font-weight: 800; color: var(--primary-light); }
.wxihba .stat .lbl { font-size: 0.82rem; color: var(--text-muted); }

/* ============================================================
   VIDEO CARDS（视频卡片 - 鼠标悬停显示播放按钮）
   ============================================================ */
.video-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 20px;
}
.video-card {
  background: var(--bg-card); border-radius: var(--radius);
  overflow: hidden; transition: all var(--transition);
  border: 1px solid var(--border-subtle);
  cursor: pointer; position: relative;
}
.video-card:hover {
  transform: translateY(-6px);
  box-shadow: 0 16px 48px rgba(232,41,90,0.22);
  border-color: var(--border);
}

/* 视频缩略图容器 */
.video-thumb {
  position: relative; aspect-ratio: 16/9; overflow: hidden;
  background: var(--bg-card2);
}
.video-thumb img {
  width: 100%; height: 100%; object-fit: cover;
  transition: transform 0.4s ease;
}
.video-card:hover .video-thumb img { transform: scale(1.07); }

/* 播放遮罩层：鼠标移入显示播放按钮（H5+CSS实现）*/
.play-overlay {
  position: absolute; inset: 0;
  display: flex; align-items: center; justify-content: center;
  background: rgba(0,0,0,0); /* 初始透明 */
  opacity: 0;
  transition: opacity 0.3s ease, background 0.3s ease;
  z-index: 2;
}
.video-card:hover .play-overlay {
  opacity: 1;
  background: rgba(0,0,0,0.32);
}

/* 播放按钮：鼠标移入时从小变大 */
.play-btn {
  width: 60px; height: 60px; border-radius: 50%;
  background: rgba(232,41,90,0.92);
  display: flex; align-items: center; justify-content: center;
  transform: scale(0.75);
  transition: transform 0.3s cubic-bezier(.34,1.56,.64,1), box-shadow 0.3s ease;
  box-shadow: 0 0 0 0 rgba(232,41,90,0.5);
  position: relative;
}
.video-card:hover .play-btn {
  transform: scale(1);
  box-shadow: 0 0 0 12px rgba(232,41,90,0.18), 0 4px 24px rgba(232,41,90,0.5);
}
.play-btn svg { width: 24px; height: 24px; fill: white; margin-left: 3px; }

/* 播放按钮光晕动画 */
.play-btn::before {
  content: '';
  position: absolute; inset: -8px;
  border-radius: 50%;
  border: 2px solid rgba(232,41,90,0.4);
  opacity: 0;
  transform: scale(0.8);
  transition: all 0.3s ease;
}
.video-card:hover .play-btn::before {
  opacity: 1;
  transform: scale(1);
}

/* 视频时长标签 */
.video-duration {
  position: absolute; bottom: 8px; right: 8px;
  background: rgba(0,0,0,0.78); color: #fff;
  padding: 2px 8px; border-radius: 4px; font-size: 0.76rem;
  font-weight: 500; z-index: 3;
}
/* 视频分类标签 */
.video-tag {
  position: absolute; top: 8px; left: 8px;
  background: var(--primary); color: #fff;
  padding: 2px 10px; border-radius: 4px; font-size: 0.73rem; font-weight: 600;
  z-index: 3; letter-spacing: 0.5px;
}

/* 视频信息区 */
.video-info { padding: 14px 16px; }
.video-info h4 {
  font-size: 0.93rem; margin-bottom: 8px; color: var(--text-main);
  line-height: 1.45; display: -webkit-box;
  -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden;
}
.video-meta {
  display: flex; align-items: center; gap: 10px;
  font-size: 0.78rem; color: var(--text-muted); flex-wrap: wrap;
}
.video-meta span { display: flex; align-items: center; gap: 3px; }
.video-meta svg { width: 12px; height: 12px; }

/* ============================================================
   FEATURE CARDS
   ============================================================ */
.iicj5yx {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
  gap: 20px;
}
.io82e {
  background: var(--bg-card); border-radius: var(--radius-lg);
  padding: 28px 24px; border: 1px solid var(--border-subtle);
  transition: all var(--transition);
}
.io82e:hover { border-color: var(--border); box-shadow: var(--shadow); transform: translateY(-4px); }
.zm90l1zk {
  width: 52px; height: 52px; border-radius: 14px;
  background: rgba(232,41,90,0.12); display: flex; align-items: center; justify-content: center;
  margin-bottom: 18px; font-size: 1.5rem;
}
.io82e h3 { font-size: 1rem; margin-bottom: 8px; }
.io82e p { font-size: 0.87rem; color: var(--text-muted); margin: 0; }

/* ============================================================
   EXPERT CARDS
   ============================================================ */
.axv5oy {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
  gap: 20px;
}
.p38yop6s {
  background: var(--bg-card); border-radius: var(--radius-lg);
  padding: 28px 20px; text-align: center;
  border: 1px solid var(--border-subtle);
  transition: all var(--transition);
}
.p38yop6s:hover { border-color: var(--border); box-shadow: var(--shadow); transform: translateY(-4px); }
.wzz0z {
  width: 80px; height: 80px; border-radius: 50%; margin: 0 auto 16px;
  background: linear-gradient(135deg, var(--primary), var(--accent));
  display: flex; align-items: center; justify-content: center;
  font-size: 2rem; font-weight: 800; color: #fff;
  border: 3px solid rgba(232,41,90,0.3);
}
.p38yop6s h4 { margin-bottom: 4px; }
.lwcf3r { font-size: 0.82rem; color: var(--primary-light); margin-bottom: 10px; }
.jateaep { font-size: 0.84rem; color: var(--text-muted); margin-bottom: 16px; }
.s99frzpu { display: flex; flex-wrap: wrap; gap: 6px; justify-content: center; margin-bottom: 16px; }
.s99frzpu span {
  font-size: 0.71rem; padding: 3px 10px; border-radius: 50px;
  background: rgba(124,58,237,0.15); color: var(--accent-light);
}
.fhvqrzj { display: flex; gap: 8px; justify-content: center; }

/* ============================================================
   REVIEW CARDS
   ============================================================ */
.olzuw9as {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 20px;
}
.ayo6ajm {
  background: var(--bg-card); border-radius: var(--radius);
  padding: 24px; border: 1px solid var(--border-subtle);
  transition: all var(--transition);
}
.ayo6ajm:hover { border-color: var(--border); transform: translateY(-2px); }
.m12lwb6 { color: #fbbf24; font-size: 1rem; margin-bottom: 12px; }
.mr96m7 { font-size: 0.88rem; color: var(--text-light); margin-bottom: 16px; line-height: 1.65; }
.u3c71 { display: flex; align-items: center; gap: 12px; }
.mileq {
  width: 40px; height: 40px; border-radius: 50%;
  background: linear-gradient(135deg, var(--primary), var(--accent));
  display: flex; align-items: center; justify-content: center;
  font-size: 1rem; font-weight: 700; color: #fff; flex-shrink: 0;
}
.y1lmggg .name { font-size: 0.88rem; font-weight: 600; }
.y1lmggg .date { font-size: 0.76rem; color: var(--text-muted); }

/* ============================================================
   FAQ 手风琴
   ============================================================ */
.faq-list { max-width: 800px; margin: 0 auto; }
.faq-item {
  background: var(--bg-card); border-radius: var(--radius);
  margin-bottom: 10px; border: 1px solid var(--border-subtle);
  overflow: hidden; transition: border-color var(--transition);
}
.faq-item.open { border-color: var(--border); }
.faq-q {
  display: flex; align-items: center; justify-content: space-between;
  padding: 18px 22px; cursor: pointer; font-weight: 600;
  font-size: 0.94rem; transition: color var(--transition);
  user-select: none;
}
.faq-q:hover { color: var(--primary-light); }
.faq-q .icon {
  font-size: 1.3rem; color: var(--primary); flex-shrink: 0;
  transition: transform var(--transition); line-height: 1;
}
.faq-item.open .faq-q .icon { transform: rotate(45deg); }
.faq-a {
  max-height: 0; overflow: hidden;
  transition: max-height 0.4s ease, padding 0.3s ease;
  padding: 0 22px;
}
.faq-item.open .faq-a {
  max-height: 400px; padding: 0 22px 18px;
}
.faq-a span { font-size: 0.88rem; color: var(--text-muted); line-height: 1.7; display: block; }

/* ============================================================
   CONTACT SECTION
   ============================================================ */
.vk8zxsn {
  display: grid; grid-template-columns: 1fr 1fr; gap: 24px;
}
.lqcj7jo {
  background: var(--bg-card); border-radius: var(--radius-lg);
  padding: 32px; border: 1px solid var(--border-subtle);
}
.lqcj7jo h3 { margin-bottom: 24px; font-size: 1.2rem; }
.c48up9 {
  display: flex; align-items: flex-start; gap: 14px;
  margin-bottom: 18px;
}
.lwcwy {
  width: 40px; height: 40px; border-radius: 10px;
  background: rgba(232,41,90,0.1); display: flex; align-items: center; justify-content: center;
  font-size: 1.1rem; flex-shrink: 0;
}
.c48up9 .info .label { font-size: 0.76rem; color: var(--text-muted); margin-bottom: 2px; }
.c48up9 .info .value { font-size: 0.9rem; color: var(--text-main); }
.c48up9 .info .value a { color: var(--primary-light); }
.yybmm { display: flex; gap: 20px; }
.vpuht97 { text-align: center; }
.vpuht97 img { width: 90px; height: 90px; border-radius: 8px; border: 1px solid var(--border-subtle); margin-bottom: 6px; }
.vpuht97 p { font-size: 0.76rem; color: var(--text-muted); }

/* ============================================================
   PARTNER GRID
   ============================================================ */
.xqdo71k {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(140px, 1fr));
  gap: 16px;
}
.wt3oj {
  background: var(--bg-card); border-radius: var(--radius);
  padding: 20px 16px; text-align: center;
  border: 1px solid var(--border-subtle); font-weight: 600;
  font-size: 0.88rem; color: var(--text-muted);
  transition: all var(--transition);
}
.wt3oj:hover { border-color: var(--border); color: var(--primary-light); }

/* ============================================================
   SHARE BAR
   ============================================================ */
.hsnlkpkj { display: flex; gap: 12px; justify-content: center; flex-wrap: wrap; }
.op4z7vz {
  padding: 10px 24px; border-radius: 50px; font-size: 0.88rem; font-weight: 600;
  border: 2px solid transparent; transition: all var(--transition); cursor: pointer;
}
.op4z7vz.wechat  { background: rgba(7,193,96,0.12);  color: #07c160; border-color: rgba(7,193,96,0.3); }
.op4z7vz.weibo   { background: rgba(230,22,45,0.12); color: #e6162d; border-color: rgba(230,22,45,0.3); }
.op4z7vz.douyin  { background: rgba(0,0,0,0.2);      color: #fff;    border-color: rgba(255,255,255,0.2); }
.op4z7vz.bilibili{ background: rgba(0,161,214,0.12); color: #00a1d6; border-color: rgba(0,161,214,0.3); }
.op4z7vz:hover { transform: translateY(-2px); filter: brightness(1.15); }

/* ============================================================
   LIVE BADGE
   ============================================================ */
.zj2ve7a6 {
  display: inline-flex; align-items: center; gap: 6px;
  padding: 3px 10px; border-radius: 50px;
  background: rgba(232,41,90,0.15); color: var(--primary-light);
  font-size: 0.74rem; font-weight: 700;
}
.zj2ve7a6 .klrg1kqc { width: 6px; height: 6px; border-radius: 50%; background: var(--primary); animation: pulse 1s infinite; }

/* ============================================================
   STATS BANNER
   ============================================================ */
.y4xe1k0c {
  background: linear-gradient(135deg, rgba(232,41,90,0.08), rgba(124,58,237,0.08));
  border: 1px solid rgba(232,41,90,0.15);
  border-radius: var(--radius-lg); padding: 40px;
  display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; text-align: center;
}
.y4xe1k0c .il5ml .num { font-size: 2.2rem; font-weight: 800; color: var(--primary-light); }
.y4xe1k0c .il5ml .lbl { font-size: 0.84rem; color: var(--text-muted); margin-top: 4px; }

/* ============================================================
   HOW-TO STEPS
   ============================================================ */
.cswszn {
  display: grid; grid-template-columns: repeat(auto-fill, minmax(220px, 1fr)); gap: 20px;
}
.mj0wqz7 {
  background: var(--bg-card); border-radius: var(--radius-lg);
  padding: 28px 22px; border: 1px solid var(--border-subtle);
  transition: all var(--transition);
}
.mj0wqz7:hover { border-color: var(--border); transform: translateY(-3px); }
.vfmr7mcb {
  width: 40px; height: 40px; border-radius: 50%;
  background: linear-gradient(135deg, var(--primary), var(--accent));
  display: flex; align-items: center; justify-content: center;
  font-size: 1rem; font-weight: 800; color: #fff; margin-bottom: 16px;
}
.mj0wqz7 h4 { margin-bottom: 8px; }
.mj0wqz7 p { font-size: 0.84rem; color: var(--text-muted); margin: 0; }

/* ============================================================
   TAB BAR
   ============================================================ */
.tab-bar {
  display: flex; gap: 8px; flex-wrap: wrap;
  padding: 6px; background: var(--bg-card);
  border-radius: 50px; border: 1px solid var(--border-subtle);
  width: fit-content;
}
.tab-btn {
  padding: 8px 20px; border-radius: 50px; font-size: 0.86rem; font-weight: 500;
  color: var(--text-muted); background: transparent;
  transition: all var(--transition); white-space: nowrap;
}
.tab-btn:hover { color: var(--text-main); }
.tab-btn.active { background: var(--primary); color: #fff; font-weight: 600; }

/* ============================================================
   FOOTER
   ============================================================ */
#site-footer {
  background: var(--bg-card3);
  border-top: 1px solid var(--border-subtle);
  padding: 56px 0 0;
  margin-top: 0;
}
.yvoirrx {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 40px;
  padding-bottom: 40px;
  border-bottom: 1px solid var(--border-subtle);
}

/* 页脚Logo区 */
.wj76cqx {
  display: flex; align-items: center; gap: 10px; margin-bottom: 16px;
}
.sssz5etu {
  width: 32px; height: 32px; border-radius: 8px; object-fit: cover; flex-shrink: 0;
}
.jplz0rn {
  height: 40px; width: auto; max-width: 130px; object-fit: contain;
}
.kxyc6mm {
  font-size: 1.3rem; font-weight: 800;
}
.k68b8 p { font-size: 0.86rem; color: var(--text-muted); margin-bottom: 8px; }
.vvstofr0 { font-size: 0.82rem !important; }
.vvstofr0 a { color: var(--primary-light) !important; }

.ue4n7 { display: flex; gap: 10px; margin-top: 16px; }
.r018myh {
  width: 36px; height: 36px; border-radius: 50%;
  background: rgba(255,255,255,0.07); border: 1px solid var(--border-subtle);
  display: flex; align-items: center; justify-content: center;
  font-size: 0.82rem; font-weight: 700; color: var(--text-muted);
  transition: all var(--transition);
}
.r018myh:hover { background: var(--primary); color: #fff; border-color: var(--primary); }

.tyb3in h5 {
  font-size: 0.9rem; font-weight: 700; color: var(--text-main);
  margin-bottom: 16px; padding-bottom: 8px;
  border-bottom: 1px solid var(--border-subtle);
}
.tyb3in ul li { margin-bottom: 8px; }
.tyb3in ul li a { font-size: 0.84rem; color: var(--text-muted); transition: color var(--transition); }
.tyb3in ul li a:hover { color: var(--primary-light); }

/* 页脚视频标签（SEO辅助）*/
.im0r2 {
  display: flex; flex-wrap: wrap; gap: 6px; margin-top: 16px;
}
.im0r2 a {
  font-size: 0.74rem; padding: 3px 10px; border-radius: 50px;
  background: rgba(232,41,90,0.1); color: var(--primary-light);
  border: 1px solid rgba(232,41,90,0.2);
  transition: all var(--transition);
}
.im0r2 a:hover { background: var(--primary); color: #fff; }

/* 底部版权栏 */
.lwbkmsw {
  display: flex; align-items: center; justify-content: space-between;
  padding: 20px 0; flex-wrap: wrap; gap: 8px;
}
.toxww p { font-size: 0.8rem; color: var(--text-muted); margin-bottom: 4px; }
.toxww a { color: var(--text-muted); }
.toxww a:hover { color: var(--primary-light); }
.ts6il8l { font-size: 0.76rem !important; }
.hmb4g {
  font-size: 0.8rem; color: var(--text-muted);
  background: rgba(232,41,90,0.08); padding: 4px 14px;
  border-radius: 50px; border: 1px solid rgba(232,41,90,0.15);
  white-space: nowrap;
}

/* ============================================================
   RESPONSIVE（移动端适配，百度移动端权重高）
   ============================================================ */
@media (max-width: 1100px) {
  .yvoirrx { grid-template-columns: 1fr 1fr; }
  .vk8zxsn { grid-template-columns: 1fr; }
  .y4xe1k0c { grid-template-columns: repeat(2, 1fr); }
  .nav-links a { font-size: 0.84rem; padding: 6px 10px; }
}

@media (max-width: 768px) {
  :root { --header-h: 60px; }
  .nav-links, .header-search { display: none; }
  .nav-toggle { display: flex; }
  .header-actions .btn-outline { display: none; }

  /* 移动端展开导航 */
  .nav-links.open {
    display: flex; flex-direction: column; position: fixed;
    top: var(--header-h); left: 0; right: 0; bottom: 0;
    background: rgba(13,13,26,0.98); padding: 20px;
    overflow-y: auto; z-index: 999; gap: 4px;
  }
  .nav-links.open a {
    padding: 14px 16px; font-size: 1rem; border-radius: var(--radius);
    border: 1px solid var(--border-subtle);
  }

  .wxihba { gap: 20px; }
  .wxihba .stat .num { font-size: 1.4rem; }
  .yvoirrx { grid-template-columns: 1fr; gap: 24px; }
  .y4xe1k0c { grid-template-columns: repeat(2, 1fr); padding: 24px; }
  .video-grid { grid-template-columns: repeat(auto-fill, minmax(240px, 1fr)); }
  .lwbkmsw { flex-direction: column; align-items: flex-start; }
  .tab-bar { border-radius: var(--radius); }
}

@media (max-width: 480px) {
  .kswrdyyi { flex-direction: column; }
  .y4xe1k0c { grid-template-columns: 1fr 1fr; }
  .hsnlkpkj { gap: 8px; }
  .op4z7vz { padding: 8px 14px; font-size: 0.82rem; }
  .video-grid { grid-template-columns: 1fr; }
  .vk8zxsn { grid-template-columns: 1fr; }
  .yybmm { justify-content: center; }
  .section { padding: 48px 0; }
  .yvoirrx { grid-template-columns: 1fr; }
}

/* ============================================================
   UTILITY CLASSES
   ============================================================ */
.text-center { text-align: center; }
.text-muted  { color: var(--text-muted); }
.mt-8  { margin-top: 8px; }
.mt-16 { margin-top: 16px; }
.mt-24 { margin-top: 24px; }
.mt-32 { margin-top: 32px; }
.mb-8  { margin-bottom: 8px; }
.mb-16 { margin-bottom: 16px; }
.mb-24 { margin-bottom: 24px; }
.mb-32 { margin-bottom: 32px; }
.flex  { display: flex; }
.flex-center { display: flex; align-items: center; justify-content: center; }
.gap-8  { gap: 8px; }
.gap-16 { gap: 16px; }
.hidden { display: none; }
.w-full { width: 100%; }

/* ============================================================
   ANIMATIONS
   ============================================================ */
@keyframes fadeInUp {
  from { opacity: 0; transform: translateY(24px); }
  to   { opacity: 1; transform: translateY(0); }
}
.animate-in { animation: fadeInUp 0.55s ease forwards; }
.delay-1 { animation-delay: 0.1s; }
.delay-2 { animation-delay: 0.2s; }
.delay-3 { animation-delay: 0.3s; }
.delay-4 { animation-delay: 0.4s; }

/* 图片懒加载占位 */
img[loading="lazy"] { background: var(--bg-card2); }

/* 跳过导航（无障碍）*/
.skip-link {
  position: absolute; top: -40px; left: 0;
  background: var(--primary); color: #fff;
  padding: 8px 16px; z-index: 9999; border-radius: 0 0 8px 0;
  transition: top 0.3s;
}
.skip-link:focus { top: 0; }