/* roulang page: index */
/* ===== 设计变量 ===== */
:root{
  --primary:#F0477F;
  --primary-deep:#D63268;
  --secondary:#FF8E72;
  --accent:#FFC98A;
  --ink:#33272B;
  --muted:#7D6A72;
  --bg:#FFF8F6;
  --card:#FFFFFF;
  --line:#FFD9D9;
  --line-soft:#FFE7E7;
  --shadow-sm:0 6px 18px rgba(240,71,127,.06);
  --shadow:0 8px 24px rgba(240,71,127,.08);
  --shadow-hover:0 18px 36px rgba(240,71,127,.14);
  --radius-xl:32px;
  --radius-lg:24px;
  --radius-md:16px;
  --radius-pill:999px;
  --grad:linear-gradient(135deg,#F0477F,#FF8E72);
  --grad-soft:linear-gradient(135deg,#FFF0F1,#FFF6DF);
}
/* ===== reset ===== */
*,*::before,*::after{
  box-sizing:border-box;margin:0;padding:0;
}
html{scroll-behavior:smooth;}
body{
  background:var(--bg);
  color:var(--ink);
  font-family:"HarmonyOS Sans SC","PingFang SC","Microsoft YaHei",system-ui,-apple-system,sans-serif;
  font-size:16px;
  line-height:1.7;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;height:auto;}
a{color:var(--ink);text-decoration:none;transition:color .25s ease,border-color .25s ease,background .25s ease,box-shadow .25s,transform .25s;}
button{border:none;cursor:pointer;background:transparent;font-family:inherit;}
a:focus-visible,button:focus-visible{
  outline:2px solid var(--primary);
  outline-offset:2px;
  border-radius:8px;
}
ul,ol{list-style:none;}
.container{max-width:1200px;margin:0 auto;padding:0 24px;}
.section{padding:88px 0;}
/* ===== 按钮 ===== */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:10px;
  border-radius:var(--radius-pill);font-weight:700;font-size:.98rem;line-height:1;
  padding:14px 28px;background:var(--card);color:var(--ink);
  border:1px solid transparent;box-shadow:var(--shadow-sm);
  transition:box-shadow .25s,transform .25s,background .25s,color .25s,border-color .25s;
  white-space:nowrap;
}
.btn:hover{box-shadow:var(--shadow-hover);transform:translateY(-2px);}
.btn:active{transform:translateY(0);}
.btn-primary{background:var(--grad);color:#fff;}
.btn-primary:hover{opacity:.96;box-shadow:0 12px 28px rgba(240,71,127,.3);color:#fff;}
.btn-line{background:#fff;color:var(--primary);border:1px solid var(--primary);}
.btn-line:hover{background:rgba(240,71,127,.07);color:var(--primary-deep);border-color:var(--primary-deep);}
.btn-sm{padding:11px 20px;font-size:.9rem;}
.btn-lg{padding:17px 34px;font-size:1.05rem;}
/* ===== Header ===== */
.top-strip{
  background:var(--ink);color:rgba(255,255,255,.86);
  font-size:.82rem;padding:6px 0;
}
.top-strip-inner{display:flex;align-items:center;justify-content:flex-end;gap:6px;}
.chip-link{
  font-size:.76rem;font-weight:700;color:#fff;background:var(--grad);
  padding:3px 13px;border-radius:var(--radius-pill);
  box-shadow:0 2px 8px rgba(240,71,127,.3);
  transition:transform .2s,box-shadow .2s;
}
.chip-link:hover{transform:translateY(-1px);box-shadow:0 4px 12px rgba(240,71,127,.5);color:#fff;}
.site-header{
  position:sticky;top:0;z-index:80;
  background:rgba(255,248,246,.88);
  backdrop-filter:blur(16px);
  -webkit-backdrop-filter:blur(16px);
  border-bottom:1px solid var(--line-soft);
}
.header-inner{display:flex;align-items:center;justify-content:space-between;padding:13px 0;gap:16px;}
.brand-logo{
  display:inline-flex;align-items:center;gap:10px;
  font-size:1.38rem;font-weight:900;letter-spacing:-.02em;color:var(--ink);
}
.logo-icon{
  width:40px;height:40px;display:inline-flex;align-items:center;justify-content:center;
  border-radius:14px;background:var(--grad);color:#fff;font-size:1rem;
  box-shadow:var(--shadow-sm);
}
.nav-cell{display:flex;align-items:center;justify-content:flex-end;gap:4px;}
.site-nav{display:flex;align-items:center;gap:4px;margin-right:12px;}
.site-nav .nav-link{
  font-weight:600;font-size:.97rem;color:var(--ink);
  padding:8px 14px;border-radius:var(--radius-pill);
  transition:background .2s,color .2s;
}
.site-nav .nav-link:hover{color:var(--primary);background:rgba(240,71,127,.07);}
.site-nav .nav-link.is-active{color:var(--primary);background:rgba(240,71,127,.1);}
.nav-toggle{display:none;width:40px;height:40px;border-radius:12px;background:var(--grad);color:#fff;font-size:1.1rem;align-items:center;justify-content:center;}
/* ===== Hero 面包屑 ===== */
.cat-hero{
  position:relative;
  background-image:linear-gradient(120deg,rgba(240,71,127,.9),rgba(255,142,114,.82)),url('/assets/images/backpic/back-4.jpg');
  background-size:cover;
  background-position:center;
  color:#fff;
  padding:66px 0 62px;
}
.breadcrumb{
  position:relative;
  display:flex;align-items:center;flex-wrap:wrap;gap:6px;
  font-size:.88rem;
  color:rgba(255,255,255,.8);
  margin-bottom:24px;
}
.breadcrumb a{color:rgba(255,255,255,.85);border-bottom:1px solid rgba(255,255,255,.4);}
.breadcrumb a:hover{color:var(--accent);border-color:var(--accent);}
.breadcrumb i{font-size:.65rem;opacity:.75;}
.cat-hero-content{position:relative;max-width:860px;}
.cat-eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  background:rgba(255,255,255,.16);border:1px solid rgba(255,255,255,.24);
  padding:7px 18px;border-radius:var(--radius-pill);
  font-size:.86rem;font-weight:700;
  margin-bottom:20px;
}
.cat-hero h1{
  font-size:clamp(1.9rem,3.6vw,3rem);
  line-height:1.25;letter-spacing:-.02em;font-weight:800;
  margin-bottom:16px;
}
.cat-hero .cat-lead{
  color:rgba(255,255,255,.92);
  max-width:740px;
  font-size:1.05rem;
  line-height:1.8;
  margin-bottom:24px;
}
.filter-chip-row{
  display:flex;flex-wrap:wrap;gap:10px;
}
.filter-chip{
  display:inline-flex;align-items:center;gap:6px;
  background:rgba(255,255,255,.16);
  border:1px solid rgba(255,255,255,.32);
  color:#fff;font-weight:600;font-size:.84rem;
  padding:7px 18px;border-radius:var(--radius-pill);
  transition:background .2s,transform .2s;
}
.filter-chip:hover{background:rgba(255,255,255,.32);transform:translateY(-1px);color:#fff;}
/* ===== 列表主区 ===== */
.cat-list-section{background:var(--bg);padding-bottom:90px;}
.list-heading{
  display:flex;align-items:flex-end;justify-content:space-between;gap:16px;
  margin-bottom:28px;flex-wrap:wrap;
}
.list-heading h2{
  font-size:clamp(1.35rem,2vw,1.7rem);
  font-weight:800;
  line-height:1.3;
}
.list-heading p{
  color:var(--muted);
  font-size:.95rem;
  max-width:420px;
}
.video-card{
  background:var(--card);
  border:1px solid var(--line-soft);
  border-radius:22px;
  overflow:hidden;
  box-shadow:var(--shadow);
  height:100%;
  display:flex;
  flex-direction:column;
  transition:box-shadow .25s,transform .25s;
}
.video-card:hover{transform:translateY(-5px);box-shadow:var(--shadow-hover);}
.video-cover{
  position:relative;
  aspect-ratio:16/10;
  background-color:#EDE3E6;
  background-image:var(--img);
  background-size:cover;background-position:center;
  overflow:hidden;
}
.video-cover::after{
  content:"";
  position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(51,39,43,0) 72%,rgba(51,39,43,.36));
}
.video-card .cover-badge{
  position:absolute;z-index:2;
  left:14px;top:12px;
  background:rgba(51,39,43,.56);
  color:#fff;
  font-size:.76rem;font-weight:700;
  padding:5px 12px;border-radius:var(--radius-pill);
  backdrop-filter:blur(4px);
  display:inline-flex;align-items:center;gap:6px;
}
.duration-badge{
  position:absolute;z-index:2;
  right:12px;bottom:12px;
  background:rgba(51,39,43,.6);
  color:#fff;font-size:.76rem;font-weight:700;
  padding:4px 10px;border-radius:var(--radius-pill);
  backdrop-filter:blur(4px);
}
.video-card .play-mask{
  position:absolute;z-index:3;inset:0;
  display:flex;align-items:center;justify-content:center;
  opacity:0;
  transition:opacity .25s;
}
.video-card:hover .play-mask{opacity:1;}
.video-card .play-btn{
  width:52px;height:52px;border-radius:50%;
  display:inline-flex;align-items:center;justify-content:center;
  background:rgba(255,255,255,.95);
  color:var(--primary);
  box-shadow:0 8px 20px rgba(0,0,0,.22);
  transform:scale(.9);
  transition:transform .25s;
}
.video-card:hover .play-btn{transform:scale(1);}
.video-body{padding:20px 20px 22px;display:flex;flex-direction:column;gap:10px;flex:1;}
.video-body h3{
  font-size:1.12rem;
  line-height:1.45;
  font-weight:800;
}
.video-body p{
  color:var(--muted);
  font-size:.92rem;line-height:1.7;flex:1;
}
.video-meta{
  display:flex;align-items:center;justify-content:space-between;gap:10px;
  border-top:1px solid var(--line-soft);
  padding-top:13px;
  margin-top:4px;
}
.data-chip{
  display:inline-flex;align-items:center;gap:6px;
  background:var(--grad);
  color:#fff;font-size:.76rem;font-weight:700;
  padding:4px 11px;border-radius:var(--radius-pill);
  white-space:nowrap;
}
.card-link{
  color:var(--primary);font-size:.88rem;font-weight:800;
  display:inline-flex;align-items:center;gap:4px;
}
.card-link:hover{color:var(--primary-deep);gap:7px;}
/* ===== 侧栏 ===== */
.sidebar-sticky{position:sticky;top:110px;display:flex;flex-direction:column;gap:20px;}
.side-card{
  background:var(--card);
  border:1px solid var(--line-soft);
  border-radius:24px;
  padding:24px;
  box-shadow:var(--shadow);
}
.side-card .side-card-title{
  display:flex;align-items:center;gap:8px;
  font-weight:800;
  font-size:1.02rem;
  margin-bottom:14px;
}
.side-card .side-card-title i{
  color:var(--primary);
}
.profile-cover{
  position:relative;
  background-image:linear-gradient(135deg,rgba(240,71,127,.24),rgba(255,201,138,.3));
  border-radius:14px;
  margin-bottom:20px;
  aspect-ratio:16/7;
  overflow:hidden;
  background-size:cover;
  background-position:center;
  display:flex;
  align-items:flex-end;
  justify-content:center;
  padding-bottom:10px;
}
.profile-cover img{
  width:100%;
  height:100%;
  object-fit:cover;
}
.profile-circle{
  width:46px;height:46px;
  border-radius:17px;
  background:var(--grad);
  color:#fff;
  display:flex;
  align-items:center;justify-content:center;
  font-size:1.2rem;
  box-shadow:0 6px 14px rgba(240,71,127,.3);
}
.profile-intro p{
  color:var(--muted);
  font-size:.9rem;
  line-height:1.75;
  margin-bottom:12px;
}
.stats-grid{
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:10px;
  margin:16px 0;
}
.stat-box{
  background:var(--grad-soft);
  border:1px solid var(--line-soft);
  border-radius:14px;
  padding:12px 10px;
  text-align:center;
}
.stat-box strong{
  display:block;
  font-size:1.35rem;
  font-weight:900;
  color:var(--primary-deep);
  line-height:1.2;
}
.stat-box span{
  color:var(--muted);
  font-size:.78rem;
}
.side-cta{
  background:var(--grad);
  border-radius:24px;
  padding:24px 20px;
  color:#fff;
  text-align:center;
  box-shadow:0 14px 30px rgba(240,71,127,.26);
}
.side-cta h3{
  font-size:1.2rem;
  font-weight:800;
  margin-bottom:8px;
}
.side-cta p{
  color:rgba(255,255,255,.9);
  font-size:.9rem;
  margin-bottom:18px;
}
.recommend-list{
  margin-top:6px;
}
.recommend-list li+li{
  border-top:1px solid var(--line-soft);
}
.recommend-list a{
  display:flex;
  align-items:center;
  justify-content:space-between;
  padding:12px 2px;
  font-size:.93rem;
  font-weight:600;
  color:var(--ink);
}
.recommend-list a:hover{
  color:var(--primary);
}
.recommend-list a i{
  font-size:.78rem;
  color:var(--primary);
}
/* ===== FAQ ===== */
.category-faq-section{background:#fff;padding-top:20px;}
.faq-wrap{max-width:900px;margin:0 auto;}
.accordion-item{
  background:#fff;
  border:1px solid var(--line);
  border-radius:18px;
  margin-bottom:14px;
  overflow:hidden;
  box-shadow:var(--shadow-sm);
}
.accordion-title{
  font-size:1rem;font-weight:800;color:var(--ink);
  padding:17px 58px 17px 50px;
  position:relative;
  background:#fff;
  border:none;
  line-height:1.5;
}
.accordion-title::before{
  content:"?";
  position:absolute;left:17px;top:50%;
  transform:translateY(-50%);
  width:24px;height:24px;
  background:var(--grad);color:#fff;
  border-radius:50%;
  display:flex;align-items:center;justify-content:center;
  font-size:.8rem;font-weight:800;
}
.accordion-title::after{
  content:"\f078";
  font-family:"Font Awesome 6 Free";font-weight:900;
  position:absolute;right:19px;top:50%;
  transform:translateY(-50%);
  color:var(--primary);
  font-size:.85rem;
  transition:transform .25s;
}
.accordion-item.is-active .accordion-title::after{transform:translateY(-50%) rotate(180deg);}
.accordion-title:hover{color:var(--primary);background:#FFFDFC;}
.accordion-content{
  border:none;
  background:#FFFDFC;
  padding:2px 22px 24px 50px;
  color:var(--muted);
  font-size:.95rem;
  line-height:1.8;
}
/* ===== Footer ===== */
.site-footer{
  background:#FFF1EF;
  border-top:1px solid var(--line-soft);
  padding:56px 0 32px;
}
.footer-grid{gap:36px;align-items:flex-start;}
.footer-brand{max-width:350px;}
.footer-brand .brand-logo{font-size:1.28rem;margin-bottom:12px;}
.footer-brand p{color:var(--muted);font-size:.93rem;line-height:1.75;}
.footer-nav h4,.social-block h4{font-size:.96rem;font-weight:800;margin-bottom:14px;}
.footer-nav a{
  display:block;color:var(--muted);padding:5px 0;
  font-size:.9rem;font-weight:600;
}
.footer-nav a:hover{color:var(--primary);}
.social-links{display:flex;gap:10px;}
.social-links a{
  width:38px;height:38px;border-radius:12px;background:#fff;
  border:1px solid var(--line);
  display:inline-flex;align-items:center;justify-content:center;
  color:var(--primary);font-size:.98rem;box-shadow:var(--shadow-sm);
}
.social-links a:hover{background:var(--grad);color:#fff;transform:translateY(-3px);}
.footer-bottom{
  border-top:1px solid var(--line);
  margin-top:42px;padding-top:20px;
  display:flex;align-items:center;justify-content:space-between;gap:10px;flex-wrap:wrap;
  color:var(--muted);font-size:.83rem;
}
/* ===== 响应式 ===== */
@media screen and (max-width:1024px){
  .section{padding:68px 0;}
}
@media screen and (max-width:768px){
  .container{padding:0 16px;}
  .section{padding:56px 0;}
  .nav-toggle{display:inline-flex;}
  .site-nav{
    position:fixed;top:0;right:-300px;width:270px;height:100vh;
    background:#fff;flex-direction:column;align-items:flex-start;
    padding:88px 26px 30px;margin:0;z-index:70;
    box-shadow:-16px 0 32px rgba(51,39,43,.14);
    transition:right .3s ease;
  }
  .site-nav .nav-link{width:100%;font-size:1.1rem;padding:12px 14px;border-radius:14px;}
  .site-header.nav-open .site-nav{right:0;}
  .nav-toggle{position:relative;z-index:90;}
  .cat-hero{padding:48px 0 44px;}
  .cat-hero h1{font-size:1.7rem;}
  .cat-hero .cat-lead{font-size:.98rem;}
  .list-heading{flex-direction:column;align-items:flex-start;gap:8px;}
  .sidebar-sticky{position:static;margin-top:34px;}
}
@media screen and (max-width:520px){
  .brand-logo{font-size:1.16rem;}
  .logo-icon{width:36px;height:36px;border-radius:12px;}
  .footer-bottom{flex-direction:column;text-align:center;}
  .video-cover{aspect-ratio:16/10;}
}

/* roulang page: category1 */
:root{
  --primary:#F0477F;
  --primary-deep:#D63268;
  --secondary:#FF8E72;
  --accent:#FFC98A;
  --ink:#33272B;
  --muted:#7D6A72;
  --bg:#FFF8F6;
  --card:#FFFFFF;
  --line:#FFD9D9;
  --line-soft:#FFE7E7;
  --shadow-sm:0 6px 18px rgba(240,71,127,.06);
  --shadow:0 8px 24px rgba(240,71,127,.08);
  --shadow-hover:0 18px 36px rgba(240,71,127,.16);
  --radius-xl:32px;
  --radius-lg:24px;
  --radius-md:16px;
  --radius-pill:999px;
  --grad:linear-gradient(135deg,#F0477F,#FF8E72);
  --grad-deep:linear-gradient(135deg,#D63268,#F0477F);
  --grad-soft:linear-gradient(135deg,#FFF0F1,#FFF6DF);
}
*,*::before,*::after{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--bg);
  color:var(--ink);
  font-family:"HarmonyOS Sans SC","PingFang SC","Microsoft YaHei",system-ui,-apple-system,sans-serif;
  font-size:16px;
  line-height:1.7;
  -webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4,p,figure,ul{margin:0;}
img{max-width:100%;display:block;height:auto;}
a{color:var(--ink);text-decoration:none;transition:color .25s ease,border-color .25s ease,background .25s ease,box-shadow .25s ease,transform .25s ease;}
button{border:none;cursor:pointer;background:transparent;font-family:inherit;}
a:hover{color:var(--primary);}
a:focus-visible,button:focus-visible,summary:focus-visible{
  outline:2px solid var(--primary);
  outline-offset:3px;
  border-radius:8px;
}
.container{max-width:1200px;margin:0 auto;padding:0 24px;}

/* ===== 按钮 ===== */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:10px;
  border-radius:var(--radius-pill);
  font-weight:700;font-size:.98rem;line-height:1;
  padding:14px 28px;
  background:var(--card);color:var(--ink);
  border:1px solid transparent;
  box-shadow:var(--shadow-sm);
  transition:box-shadow .25s,transform .25s,background .25s,color .25s,border-color .25s;
  white-space:nowrap;
}
.btn:hover{box-shadow:var(--shadow-hover);transform:translateY(-2px);color:var(--primary-deep);}
.btn:active{transform:translateY(0) scale(.99);}
.btn-primary{background:var(--grad);color:#fff;}
.btn-primary:hover{color:#fff;opacity:.96;box-shadow:0 12px 28px rgba(240,71,127,.32);}
.btn-sm{padding:11px 20px;font-size:.9rem;}
.btn-block{width:100%;}
.btn-light{background:#fff;color:var(--primary);box-shadow:0 10px 26px rgba(0,0,0,.12);}
.btn-light:hover{color:var(--primary-deep);transform:translateY(-2px);box-shadow:0 14px 30px rgba(0,0,0,.18);}

/* ===== Header 导航 ===== */
.site-header{
  position:sticky;top:0;z-index:80;
  background:rgba(255,248,246,.9);
  backdrop-filter:blur(16px);
  -webkit-backdrop-filter:blur(16px);
  border-bottom:1px solid var(--line-soft);
}
.header-inner{display:flex;align-items:center;justify-content:space-between;padding:13px 0;gap:16px;}
.brand-logo{
  display:inline-flex;align-items:center;gap:10px;
  font-size:1.38rem;font-weight:900;letter-spacing:-.02em;color:var(--ink);
}
.brand-logo:hover{color:var(--ink);}
.logo-icon{
  width:40px;height:40px;display:inline-flex;align-items:center;justify-content:center;
  border-radius:14px;background:var(--grad);color:#fff;font-size:1rem;
  box-shadow:var(--shadow-sm);
}
.nav-cell{display:flex;align-items:center;justify-content:flex-end;gap:4px;}
.site-nav{display:flex;align-items:center;gap:4px;margin-right:10px;}
.site-nav .nav-link{
  font-weight:600;font-size:.97rem;color:var(--ink);
  padding:8px 16px;border-radius:var(--radius-pill);
  transition:background .2s,color .2s;
}
.site-nav .nav-link:hover{color:var(--primary);background:rgba(240,71,127,.07);}
.site-nav .nav-link.is-active{color:var(--primary);background:rgba(240,71,127,.1);}
.nav-action{display:flex;align-items:center;gap:12px;}
.nav-toggle{
  display:none;width:42px;height:42px;border-radius:14px;
  background:var(--grad);color:#fff;font-size:1.1rem;
  align-items:center;justify-content:center;
  box-shadow:var(--shadow-sm);
}

/* ===== 分类页 Hero ===== */
.cat-hero{
  position:relative;
  background-image:linear-gradient(120deg,rgba(240,71,127,.92),rgba(255,142,114,.84)),url('/assets/images/backpic/back-2.jpg');
  background-size:cover;
  background-position:center;
  color:#fff;
  padding:62px 0 68px;
  overflow:hidden;
}
.cat-hero::after{
  content:"";
  position:absolute;
  right:-120px;bottom:-180px;width:420px;height:420px;
  border-radius:50%;
  background:radial-gradient(circle,rgba(255,255,255,.18),transparent 68%);
  pointer-events:none;
}
.breadcrumb{
  display:flex;align-items:center;gap:8px;
  color:rgba(255,255,255,.78);
  font-size:.88rem;margin-bottom:34px;
  position:relative;z-index:1;
}
.breadcrumb a{color:rgba(255,255,255,.88);border-bottom:1px solid rgba(255,255,255,.35);}
.breadcrumb a:hover{color:#fff;border-color:#fff;}
.breadcrumb .sep{opacity:.5;}
.cat-hero-content{position:relative;z-index:1;max-width:880px;}
.cat-eyebrow{
  display:inline-flex;align-items:center;gap:9px;
  background:rgba(255,255,255,.16);
  border:1px solid rgba(255,255,255,.28);
  padding:7px 18px;border-radius:var(--radius-pill);
  font-size:.86rem;font-weight:700;margin-bottom:22px;
  backdrop-filter:blur(4px);
}
.cat-hero h1{
  font-size:clamp(2rem,4vw,3.35rem);
  line-height:1.22;letter-spacing:-.03em;font-weight:800;
  margin-bottom:18px;
}
.cat-hero h1 .hl{
  color:var(--accent);
}
.cat-lead{
  color:rgba(255,255,255,.94);
  max-width:760px;
  font-size:1.06rem;
  line-height:1.85;
  margin-bottom:26px;
}
.filter-chip-row{display:flex;flex-wrap:wrap;gap:10px;}
.filter-chip{
  display:inline-flex;align-items:center;gap:6px;
  background:rgba(255,255,255,.16);
  border:1px solid rgba(255,255,255,.34);
  color:#fff;font-weight:600;font-size:.84rem;
  padding:7px 18px;border-radius:var(--radius-pill);
  transition:background .2s,transform .2s;
}
.filter-chip:hover{background:rgba(255,255,255,.3);transform:translateY(-1px);}
.filter-chip::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--accent);}

/* ===== 列表主区 ===== */
.cat-list-section{padding:88px 0;background:var(--bg);}
.section-kicker{
  display:inline-flex;align-items:center;gap:6px;
  color:var(--primary);font-size:.82rem;font-weight:800;
  letter-spacing:.04em;margin-bottom:8px;
}
.list-heading{
  display:flex;align-items:flex-end;justify-content:space-between;gap:20px;
  margin:0 0 34px;flex-wrap:wrap;
}
.list-heading h2{
  font-size:clamp(1.4rem,2.2vw,1.85rem);
  font-weight:800;line-height:1.3;letter-spacing:-.01em;
}
.list-heading p{color:var(--muted);font-size:.95rem;max-width:430px;margin-top:8px;}
.text-link{
  display:inline-flex;align-items:center;gap:8px;
  color:var(--primary);font-weight:700;font-size:.95rem;
  border-bottom:2px solid transparent;
}
.text-link:hover{color:var(--primary-deep);border-color:var(--primary);}
.text-link i{transition:transform .2s;}
.text-link:hover i{transform:translateX(3px);}
.card-grid > .cell{margin-bottom:28px;}
.video-card{
  background:#fff;border:1px solid var(--line-soft);
  border-radius:var(--radius-lg);overflow:hidden;
  box-shadow:var(--shadow);height:100%;
  display:flex;flex-direction:column;
  transition:box-shadow .25s,transform .25s;
}
.video-card:hover{transform:translateY(-5px);box-shadow:var(--shadow-hover);}
.cover-link{display:block;position:relative;aspect-ratio:16/9;overflow:hidden;}
.cover-link img{width:100%;height:100%;object-fit:cover;transition:transform .5s ease;}
.video-card:hover .cover-link img{transform:scale(1.05);}
.cover-tag{
  position:absolute;left:14px;top:14px;z-index:2;
  background:rgba(51,39,43,.62);color:#fff;
  font-size:.76rem;font-weight:700;letter-spacing:.02em;
  padding:5px 14px;border-radius:var(--radius-pill);
  backdrop-filter:blur(6px);
  display:inline-flex;align-items:center;gap:6px;
}
.cover-tag::before{content:"\f144";font-family:"Font Awesome 6 Free";font-weight:900;font-size:.7rem;}
.cover-duration{
  position:absolute;right:14px;bottom:14px;z-index:2;
  background:rgba(51,39,43,.7);color:#fff;
  font-size:.74rem;font-weight:600;border-radius:8px;
  padding:3px 9px;backdrop-filter:blur(4px);
}
.video-card-body{padding:22px 22px 20px;display:flex;flex-direction:column;flex:1;}
.video-card h3{font-size:1.12rem;font-weight:800;line-height:1.45;margin-bottom:10px;}
.video-card h3 a{color:var(--ink);}
.video-card h3 a:hover{color:var(--primary);}
.video-card p{
  color:var(--muted);font-size:.92rem;line-height:1.75;
  margin-bottom:16px;flex:1;
}
.card-foot{
  display:flex;align-items:center;justify-content:space-between;
  border-top:1px solid var(--line-soft);
  padding-top:15px;
}
.card-stamp{
  display:inline-flex;align-items:center;gap:7px;
  color:var(--secondary);font-size:.78rem;font-weight:700;
}
.card-stamp i{font-size:1rem;}
.card-play{
  display:inline-flex;align-items:center;gap:8px;
  background:var(--grad-soft);color:var(--primary-deep);
  font-weight:800;font-size:.86rem;
  padding:9px 18px;border-radius:var(--radius-pill);
  transition:background .2s,color .2s,transform .2s;
}
.card-play:hover{color:#fff;background:var(--grad);transform:translateY(-2px);}
.list-note{
  margin-top:10px;
  display:flex;align-items:center;gap:10px;
  background:var(--grad-soft);
  border:1px dashed var(--line);
  color:var(--muted);
  padding:14px 20px;
  border-radius:var(--radius-md);
  font-size:.9rem;
}
.list-note i{color:var(--primary);}

/* ===== 侧边栏 ===== */
.side-sticky{position:sticky;top:92px;}
.side-card{
  background:#fff;border:1px solid var(--line-soft);
  border-radius:var(--radius-lg);box-shadow:var(--shadow);
  padding:24px;margin-bottom:22px;
}
.side-cover{border-radius:15px;overflow:hidden;aspect-ratio:16/9;margin-bottom:18px;position:relative;}
.side-cover img{width:100%;height:100%;object-fit:cover;}
.side-avatar{
  width:46px;height:46px;border-radius:15px;
  background:var(--grad);color:#fff;
  display:flex;align-items:center;justify-content:center;
  font-size:1.1rem;box-shadow:var(--shadow);margin-top:-38px;position:relative;z-index:2;
  border:4px solid #fff;
}
.side-about h3{font-size:1.15rem;font-weight:800;margin:10px 0 8px;}
.side-about p{color:var(--muted);font-size:.9rem;line-height:1.75;}
.side-card h4{
  font-size:.98rem;font-weight:800;margin-bottom:16px;
  display:flex;align-items:center;gap:8px;
}
.side-card h4::before{content:"";width:8px;height:8px;border-radius:50%;background:var(--grad);}
.stat-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:10px;}
.stat-item{
  background:var(--grad-soft);
  border-radius:15px;padding:12px 6px;text-align:center;
}
.stat-item strong{
  display:block;font-size:1.15rem;font-weight:900;
  color:var(--primary);letter-spacing:-.02em;
}
.stat-item span{font-size:.72rem;color:var(--muted);font-weight:600;}
.side-cta{
  background:var(--grad);
  border:none;color:#fff;
  text-align:center;
}
.side-cta h4{color:#fff;justify-content:center;}
.side-cta h4::before{display:none;}
.side-cta p{color:rgba(255,255,255,.94);font-size:.92rem;margin-bottom:18px;line-height:1.75;}
.side-cta .btn-light{margin-top:4px;}
.tag-wall{display:flex;flex-wrap:wrap;gap:8px;}
.tag-mini{
  background:var(--bg);
  border:1px solid var(--line-soft);
  color:var(--muted);
  font-size:.78rem;font-weight:600;
  padding:5px 12px;border-radius:var(--radius-pill);
}
.tag-mini:hover{color:var(--primary);border-color:var(--primary);}

/* ===== FAQ ===== */
.faq-section{
  background:var(--bg);
  padding:0 0 90px;
}
.faq-inner{max-width:920px;margin:0 auto;}
.faq-head{text-align:center;margin-bottom:38px;}
.faq-head .section-kicker{justify-content:center;}
.faq-head h2{
  font-size:clamp(1.45rem,2.4vw,2rem);
  font-weight:800;line-height:1.35;letter-spacing:-.01em;
}
.faq-head p:not(.section-kicker){color:var(--muted);margin-top:8px;font-size:.95rem;}
.faq-item{
  background:#fff;
  border:1px solid var(--line-soft);
  border-radius:20px;
  box-shadow:var(--shadow-sm);
  padding:4px 24px;
  margin-bottom:14px;
  transition:box-shadow .2s,transform .2s;
}
.faq-item:hover{box-shadow:var(--shadow);}
.faq-summary{
  display:flex;align-items:center;gap:14px;
  padding:18px 0 16px;list-style:none;cursor:pointer;
  font-weight:800;font-size:1.02rem;line-height:1.5;
}
.faq-summary::-webkit-details-marker{display:none;}
.faq-summary .q-icon{
  flex:0 0 auto;width:32px;height:32px;border-radius:50%;
  background:var(--grad);color:#fff;display:flex;align-items:center;justify-content:center;
  font-size:.84rem;box-shadow:var(--shadow-sm);
}
.faq-summary .plus{
  margin-left:auto;color:var(--primary);width:24px;text-align:center;
  transition:transform .25s ease;
}
.faq-item[open] .plus i{transform:rotate(45deg);}
.faq-item[open] .plus i::before{content:"\f068";}
.faq-answer{padding:0 0 20px 46px;color:var(--muted);font-size:.94rem;line-height:1.8;}

/* ===== 页脚前CTA ===== */
.page-cta{padding-bottom:90px;background:var(--bg);}
.cta-card{
  background:var(--grad);
  border-radius:var(--radius-xl);
  padding:52px 56px;
  display:flex;align-items:center;justify-content:space-between;
  gap:26px;flex-wrap:wrap;
  box-shadow:0 20px 44px rgba(240,71,127,.28);
  color:#fff;
  position:relative;overflow:hidden;
}
.cta-card::after{
  content:"\f144";
  font-family:"Font Awesome 6 Free";font-weight:900;
  position:absolute;right:-10px;bottom:-20px;font-size:8rem;
  opacity:.1;line-height:1;color:#fff;
}
.cta-card h2{
  font-size:clamp(1.35rem,2.4vw,1.9rem);
  font-weight:800;line-height:1.35;
  margin-bottom:8px;
}
.cta-card p{color:rgba(255,255,255,.94);max-width:520px;font-size:.96rem;}
.cta-card .btn-light{position:relative;z-index:2;flex:0 0 auto;}

/* ===== 页脚 ===== */
.site-footer{
  background:var(--ink);
  color:rgba(255,255,255,.82);
  padding:64px 0 30px;
}
.footer-grid{margin-bottom:38px;}
.site-footer .brand-logo{color:#fff;}
.site-footer .brand-logo:hover{color:#fff;}
.footer-brand p{color:rgba(255,255,255,.66);font-size:.92rem;line-height:1.85;max-width:330px;}
.site-footer h4{
  color:#fff;font-size:.92rem;font-weight:800;
  margin-bottom:18px;letter-spacing:.03em;
}
.footer-nav{display:flex;flex-direction:column;gap:12px;}
.footer-nav a{color:rgba(255,255,255,.7);font-size:.9rem;}
.footer-nav a:hover{color:var(--accent);}
.social-links{display:flex;gap:12px;flex-wrap:wrap;}
.social-links a{
  width:42px;height:42px;border-radius:50%;
  background:rgba(255,255,255,.1);
  color:#fff;display:flex;align-items:center;justify-content:center;
  font-size:1rem;
  transition:background .25s,color .25s,transform .25s;
}
.social-links a:hover{
  background:var(--grad);color:#fff;transform:translateY(-3px);
}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.1);
  padding-top:26px;
  display:flex;flex-wrap:wrap;gap:12px;
  align-items:center;justify-content:space-between;
  color:rgba(255,255,255,.5);
  font-size:.84rem;
}
.footer-bottom small{color:rgba(255,255,255,.36);}

/* ===== 响应式 ===== */
@media screen and (max-width: 1023px){
  .cat-list-section{padding:66px 0;}
  .side-sticky{position:static;margin-top:30px;}
  .cta-card{padding:42px 34px;}
}
@media screen and (max-width: 900px){
  .site-header{padding:0;}
  .nav-toggle{display:inline-flex;}
  .site-nav{
    position:fixed;top:0;right:0;height:100vh;width:min(84vw,340px);
    background:#fff;flex-direction:column;align-items:flex-start;
    justify-content:flex-start;gap:6px;
    padding:108px 26px 34px;margin:0;
    transform:translateX(105%);
    transition:transform .3s ease;
    z-index:110;
    border-left:1px solid var(--line-soft);
    box-shadow:-14px 0 40px rgba(51,39,43,.16);
  }
  body.nav-open .site-nav{transform:translateX(0);}
  body.nav-open{overflow:hidden;}
  .site-nav .nav-link{
    width:100%;font-size:1.08rem;font-weight:700;
    padding:14px 16px;border-radius:14px;
  }
  .site-nav .nav-link.is-active{background:var(--grad);color:#fff;}
  .nav-cell{gap:8px;}
  .nav-action{position:relative;z-index:120;}
  .cat-hero{padding:42px 0 50px;}
  .footer-grid .cell{margin-bottom:10px;}
  .footer-brand{margin-bottom:16px;}
}
@media screen and (max-width: 639px){
  .container{padding:0 16px;}
  .cat-list-section{padding:56px 0;}
  .header-inner{padding:10px 0;}
  .brand-logo{font-size:1.2rem;}
  .logo-icon{width:36px;height:36px;border-radius:12px;}
  .btn-sm{padding:10px 16px;font-size:.84rem;}
  .cat-hero h1{font-size:1.85rem;}
  .cat-lead{font-size:.95rem;}
  .breadcrumb{margin-bottom:22px;font-size:.82rem;}
  .video-card h3{font-size:1.05rem;}
  .video-card p{font-size:.9rem;}
  .stat-grid{gap:8px;}
  .stat-item strong{font-size:1rem;}
  .faq-answer{padding-left:0;}
  .faq-summary{align-items:flex-start;font-size:.96rem;}
  .faq-summary .q-icon{width:28px;height:28px;font-size:.76rem;margin-top:2px;}
  .faq-answer{font-size:.9rem;}
  .cta-card{padding:34px 24px;flex-direction:column;text-align:center;justify-content:center;}
  .site-footer{padding:50px 0 24px;}
}