/* roulang page: index */
:root{
  --c-primary:#2B5FA8;
  --c-deep:#16324F;
  --c-soft:#E8F0FB;
  --c-accent:#E9A13B;
  --c-bg:#F6F8FC;
  --c-card:#FFFFFF;
  --c-line:#E3EAF3;
  --c-text:#16202E;
  --c-text-2:#5A6B80;
  --c-text-3:#8A99AC;
  --r-card:16px;
  --r-btn:10px;
  --r-img:12px;
  --r-hero:20px;
  --sh-1:0 2px 8px rgba(22,50,79,.06);
  --sh-2:0 12px 28px rgba(22,50,79,.12);
  --w:1200px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  background:var(--c-bg);
  color:var(--c-text);
  font-family:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei",system-ui,-apple-system,sans-serif;
  font-size:16px;
  line-height:1.8;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;height:auto}
a{color:var(--c-primary);text-decoration:none;transition:color .18s ease}
a:hover{color:var(--c-deep)}
p{margin:0 0 1.4em}
p:last-child{margin-bottom:0}
h1,h2,h3{margin:0;color:var(--c-deep);font-weight:700;letter-spacing:-0.01em}
h1{font-size:clamp(30px,4vw,46px);line-height:1.25}
h2{font-size:clamp(24px,2.6vw,32px);line-height:1.35}
h3{font-size:20px;line-height:1.5;font-weight:600;color:var(--c-text)}
ul{margin:0;padding:0;list-style:none}
button{font-family:inherit}
button,input{font-size:inherit}
:focus-visible{outline:2px solid var(--c-primary);outline-offset:2px}
.container{
  width:100%;
  max-width:var(--w);
  margin:0 auto;
  padding-left:24px;
  padding-right:24px;
}

/* ============ 顶部导航 ============ */
.site-header{
  position:sticky;
  top:0;
  z-index:80;
  background:#fff;
  box-shadow:0 1px 0 rgba(22,50,79,.06);
}
.header-inner{
  display:flex;
  align-items:center;
  gap:24px;
  height:72px;
}
.brand{
  display:inline-flex;
  align-items:center;
  gap:10px;
  flex-shrink:0;
}
.brand-mark{
  width:24px;
  height:24px;
  display:inline-block;
  color:var(--c-primary);
}
.brand-name{
  font-size:18px;
  font-weight:700;
  color:var(--c-deep);
  letter-spacing:.01em;
}
.nav-links{
  display:flex;
  align-items:center;
  gap:30px;
  flex:1 1 auto;
}
.nav-link{
  position:relative;
  display:inline-block;
  padding:24px 0;
  font-size:15px;
  color:var(--c-text-2);
  white-space:nowrap;
}
.nav-link:hover{color:var(--c-primary)}
.nav-link.is-active{color:var(--c-deep);font-weight:600}
.nav-link.is-active::after{
  content:"";
  position:absolute;
  left:50%;
  bottom:14px;
  transform:translateX(-50%);
  width:20px;
  height:2px;
  border-radius:2px;
  background:var(--c-primary);
}
.nav-actions{
  display:flex;
  align-items:center;
  gap:14px;
  flex-shrink:0;
}
.search-box{
  position:relative;
  width:230px;
}
.search-box input{
  width:100%;
  height:40px;
  padding:0 14px 0 38px;
  border:1px solid transparent;
  border-radius:var(--r-btn);
  background:var(--c-bg);
  color:var(--c-text);
  font-size:13px;
  line-height:40px;
  transition:border-color .18s ease,box-shadow .18s ease,background .18s ease;
}
.search-box input::placeholder{color:var(--c-text-3);font-size:13px}
.search-box input:focus{
  outline:none;
  background:#fff;
  border-color:var(--c-primary);
  box-shadow:0 0 0 3px rgba(43,95,168,.15);
}
.search-box .search-icon{
  position:absolute;
  left:13px;
  top:50%;
  transform:translateY(-50%);
  color:var(--c-text-3);
  font-size:13px;
  pointer-events:none;
}
.login-link{
  font-size:15px;
  color:var(--c-text-2);
  white-space:nowrap;
}
.login-link:hover{color:var(--c-primary)}
.nav-toggle{
  display:none;
  width:40px;
  height:40px;
  border:1px solid var(--c-line);
  border-radius:var(--r-btn);
  background:#fff;
  color:var(--c-deep);
  cursor:pointer;
  align-items:center;
  justify-content:center;
}
.nav-toggle:hover{border-color:var(--c-primary);color:var(--c-primary)}
.mobile-only{display:none}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  height:44px;
  padding:0 22px;
  border:1px solid transparent;
  border-radius:var(--r-btn);
  font-size:15px;
  font-weight:600;
  line-height:1;
  text-align:center;
  cursor:pointer;
  white-space:nowrap;
  transition:background .18s ease,color .18s ease,border-color .18s ease,transform .18s ease,box-shadow .18s ease;
}
.btn-primary{background:var(--c-primary);color:#fff}
.btn-primary:hover{background:var(--c-deep);color:#fff;transform:translateY(-2px);box-shadow:0 8px 18px rgba(43,95,168,.24)}
.btn-primary:active{transform:translateY(-1px);box-shadow:0 4px 10px rgba(43,95,168,.2)}
.btn-ghost{background:#fff;border-color:#D8E3F1;color:var(--c-deep)}
.btn-ghost:hover{background:var(--c-soft);border-color:var(--c-primary);color:var(--c-deep)}
.btn-ghost:active{background:#DCE8F8}
.btn-light{background:#fff;color:var(--c-deep)}
.btn-light:hover{background:var(--c-soft);color:var(--c-deep);transform:translateY(-2px)}
.btn-outline-light{background:transparent;border-color:rgba(255,255,255,.55);color:#fff}
.btn-outline-light:hover{background:rgba(255,255,255,.14);color:#fff;border-color:#fff}
.btn-sm{height:38px;padding:0 18px;font-size:14px}
.btn:disabled,.btn[disabled]{opacity:.5;cursor:not-allowed;transform:none;box-shadow:none}
.text-link{
  display:inline-flex;
  align-items:center;
  gap:6px;
  font-size:15px;
  font-weight:600;
  color:var(--c-primary);
  border-bottom:1px solid transparent;
  padding-bottom:2px;
}
.text-link i{transition:transform .18s ease;font-size:12px}
.text-link:hover{border-bottom-color:var(--c-primary)}
.text-link:hover i{transform:translateX(2px)}

/* ============ Hero ============ */
.hero-wrap{padding-top:28px}
.hero{
  position:relative;
  display:flex;
  align-items:center;
  min-height:540px;
  padding:56px 56px;
  border-radius:var(--r-hero);
  overflow:hidden;
  background-image:
    linear-gradient(90deg,rgba(22,50,79,.9) 0%,rgba(22,50,79,.62) 46%,rgba(22,50,79,.15) 100%),
    url('/assets/images/backpic/back-1.png');
  background-size:cover;
  background-position:center;
  box-shadow:var(--sh-1);
}
.hero-star{
  position:absolute;
  width:6px;
  height:6px;
  border-radius:50%;
  background:var(--c-accent);
  opacity:.85;
}
.hero-star.s1{top:76px;right:22%}
.hero-star.s2{top:140px;right:12%;width:4px;height:4px;opacity:.6}
.hero-star.s3{bottom:104px;right:34%;width:5px;height:5px;opacity:.65}
.hero-inner{position:relative;z-index:2;max-width:560px}
.hero-badge{
  display:inline-flex;
  align-items:center;
  gap:8px;
  padding:6px 16px;
  margin-bottom:20px;
  border:1px solid rgba(255,255,255,.5);
  border-radius:999px;
  background:rgba(255,255,255,.12);
  color:#fff;
  font-size:13px;
  letter-spacing:.02em;
}
.hero-badge::before{
  content:"";
  width:6px;
  height:6px;
  border-radius:50%;
  background:var(--c-accent);
}
.hero h1{color:#fff;margin-bottom:16px}
.hero-sub{
  font-size:16px;
  line-height:1.8;
  color:#D8E3F1;
  margin-bottom:28px;
  max-width:520px;
}
.hero-actions{display:flex;gap:12px;flex-wrap:wrap;margin-bottom:26px}
.hero-metrics{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:10px;
  font-size:13px;
  color:#B9C7D9;
}
.hero-metrics span{display:inline-flex;align-items:center;gap:6px}
.hero-metrics i{color:var(--c-accent);font-size:8px}
.hero-dots{
  position:absolute;
  right:32px;
  bottom:28px;
  display:flex;
  gap:8px;
  z-index:2;
}
.hero-dots i{
  width:8px;
  height:8px;
  border-radius:50%;
  background:rgba(255,255,255,.45);
}
.hero-dots i.on{width:22px;border-radius:4px;background:#fff}

/* ============ 板块通用 ============ */
.section{padding:52px 0}
.section-head{
  display:flex;
  align-items:flex-end;
  justify-content:space-between;
  gap:20px;
  margin-bottom:28px;
}
.section-head .head-text{max-width:640px}
.section-desc{
  margin:10px 0 0;
  font-size:15px;
  line-height:1.8;
  color:var(--c-text-2);
}
.section-soft{background:#fff;border-top:1px solid var(--c-line);border-bottom:1px solid var(--c-line)}

/* ============ 横滑片库 ============ */
.rail{
  display:flex;
  gap:18px;
  overflow-x:auto;
  scroll-snap-type:x mandatory;
  padding-bottom:12px;
  scrollbar-width:none;
  -ms-overflow-style:none;
}
.rail::-webkit-scrollbar{display:none}
.rail-card{
  flex:0 0 calc((100% - 54px) / 4);
  min-width:230px;
  scroll-snap-align:start;
  background:var(--c-card);
  border:1px solid var(--c-line);
  border-radius:var(--r-card);
  padding:12px;
  box-shadow:var(--sh-1);
  transition:transform .2s ease,box-shadow .2s ease;
  cursor:pointer;
}
.rail-card:hover{transform:translateY(-4px);box-shadow:var(--sh-2)}
.rail-figure{
  position:relative;
  border-radius:var(--r-img);
  overflow:hidden;
  aspect-ratio:16/10;
  background:var(--c-soft);
}
.rail-figure img{
  width:100%;
  height:100%;
  object-fit:cover;
  transition:filter .2s ease;
}
.rail-tag{
  position:absolute;
  top:10px;
  left:10px;
  padding:3px 10px;
  border-radius:999px;
  background:rgba(22,50,79,.62);
  color:#fff;
  font-size:12px;
  line-height:1.6;
  backdrop-filter:none;
}
.rail-play{
  position:absolute;
  inset:0;
  display:flex;
  align-items:center;
  justify-content:center;
  background:rgba(22,50,79,.32);
  opacity:0;
  transition:opacity .2s ease;
}
.rail-play span{
  width:44px;
  height:44px;
  border-radius:50%;
  background:#fff;
  color:var(--c-primary);
  display:flex;
  align-items:center;
  justify-content:center;
  font-size:14px;
}
.rail-card:hover .rail-play{opacity:1}
.rail-card:hover .rail-figure img{filter:brightness(.94)}
.rail-title{
  margin:12px 2px 4px;
  font-size:16px;
  font-weight:600;
  color:var(--c-text);
  line-height:1.5;
  overflow:hidden;
  text-overflow:ellipsis;
  white-space:nowrap;
  transition:color .18s ease;
}
.rail-card:hover .rail-title{color:var(--c-primary)}
.rail-meta{
  margin:0 2px;
  font-size:13px;
  color:var(--c-text-3);
  font-variant-numeric:tabular-nums;
}

/* ============ 热播榜 ============ */
.rank-grid{
  display:grid;
  grid-template-columns:repeat(2,minmax(0,1fr));
  gap:0 56px;
}
.rank-row{
  display:flex;
  align-items:center;
  gap:16px;
  padding:16px 8px;
  border-bottom:1px solid var(--c-line);
  border-radius:8px;
  transition:background .18s ease;
}
.rank-row:hover{background:var(--c-bg)}
.rank-num{
  flex:0 0 38px;
  font-size:26px;
  font-weight:700;
  line-height:1;
  color:var(--c-text-3);
  font-variant-numeric:tabular-nums;
}
.rank-row:nth-child(1) .rank-num,
.rank-row:nth-child(2) .rank-num,
.rank-row:nth-child(3) .rank-num{color:var(--c-accent)}
.rank-body{flex:1 1 auto;min-width:0}
.rank-name{
  font-size:16px;
  font-weight:600;
  color:var(--c-text);
  line-height:1.6;
  overflow:hidden;
  text-overflow:ellipsis;
  white-space:nowrap;
  transition:color .18s ease;
}
.rank-row:hover .rank-name{color:var(--c-primary)}
.rank-tag{
  display:inline-block;
  margin-top:6px;
  padding:2px 10px;
  border-radius:999px;
  background:var(--c-soft);
  color:var(--c-primary);
  font-size:12px;
  line-height:1.7;
}
.rank-thumb{
  flex:0 0 72px;
  width:72px;
  height:72px;
  border-radius:8px;
  overflow:hidden;
  background:var(--c-soft);
}
.rank-thumb img{width:100%;height:100%;object-fit:cover}

/* ============ 片单拼图卡 ============ */
.coll-grid{
  display:grid;
  grid-template-columns:repeat(3,minmax(0,1fr));
  gap:24px;
}
.coll-card{
  display:flex;
  gap:18px;
  padding:22px;
  background:var(--c-card);
  border:1px solid var(--c-line);
  border-radius:var(--r-card);
  box-shadow:var(--sh-1);
  transition:transform .2s ease,box-shadow .2s ease;
}
.coll-card:hover{transform:translateY(-3px);box-shadow:var(--sh-2)}
.coll-mosaic{
  flex:0 0 128px;
  display:grid;
  grid-template-columns:1fr 1fr;
  grid-template-rows:1fr 1fr;
  gap:8px;
}
.coll-main{
  grid-column:1 / span 2;
  border-radius:var(--r-img);
  overflow:hidden;
  aspect-ratio:16/10;
  background:var(--c-soft);
  transition:filter .2s ease;
}
.coll-main img{width:100%;height:100%;object-fit:cover}
.coll-card:hover .coll-main{filter:brightness(1.04)}
.coll-small{
  border-radius:8px;
  overflow:hidden;
  aspect-ratio:1/1;
  background:var(--c-soft);
}
.coll-small img{width:100%;height:100%;object-fit:cover}
.coll-info{flex:1 1 auto;min-width:0}
.coll-info h3{font-size:19px;margin-bottom:8px}
.coll-info p{
  font-size:14px;
  line-height:1.75;
  color:var(--c-text-2);
  margin:0 0 12px;
  display:-webkit-box;
  -webkit-line-clamp:2;
  -webkit-box-orient:vertical;
  overflow:hidden;
}
.coll-foot{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:10px;
  font-size:13px;
  color:var(--c-text-3);
  font-variant-numeric:tabular-nums;
}

/* ============ 深色 CTA ============ */
.cta-band{
  position:relative;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:32px;
  padding:46px 52px;
  border-radius:var(--r-hero);
  background-color:var(--c-deep);
  background-image:
    radial-gradient(rgba(255,255,255,.08) 0.6px,transparent 0.6px);
  background-size:16px 16px;
  overflow:hidden;
}
.cta-band h2{color:#fff;max-width:520px}
.cta-band p{
  margin:12px 0 0;
  color:#B9C7D9;
  font-size:15px;
  line-height:1.8;
  max-width:520px;
}
.cta-actions{display:flex;gap:12px;flex-wrap:wrap;flex-shrink:0}

/* ============ 最新资讯（CMS） ============ */
.news-grid{
  display:grid;
  grid-template-columns:repeat(3,minmax(0,1fr));
  gap:24px;
}
.news-card{
  display:flex;
  flex-direction:column;
  padding:24px;
  background:var(--c-card);
  border:1px solid var(--c-line);
  border-radius:var(--r-card);
  box-shadow:var(--sh-1);
  transition:transform .2s ease,box-shadow .2s ease;
}
.news-card:hover{transform:translateY(-4px);box-shadow:var(--sh-2)}
.news-badge{
  align-self:flex-start;
  padding:3px 12px;
  margin-bottom:14px;
  border-radius:999px;
  background:var(--c-soft);
  color:var(--c-primary);
  font-size:12px;
  line-height:1.7;
  font-weight:600;
}
.news-title{
  font-size:17px;
  font-weight:600;
  line-height:1.6;
  color:var(--c-text);
  margin:0 0 10px;
  display:-webkit-box;
  -webkit-line-clamp:2;
  -webkit-box-orient:vertical;
  overflow:hidden;
  transition:color .18s ease;
}
.news-card:hover .news-title{color:var(--c-primary)}
.news-excerpt{
  font-size:14px;
  line-height:1.75;
  color:var(--c-text-2);
  margin:0 0 18px;
  display:-webkit-box;
  -webkit-line-clamp:3;
  -webkit-box-orient:vertical;
  overflow:hidden;
}
.news-foot{
  margin-top:auto;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:12px;
  padding-top:14px;
  border-top:1px solid var(--c-line);
  font-size:13px;
  color:var(--c-text-3);
  font-variant-numeric:tabular-nums;
}
.news-foot .text-link{font-size:13px}
.empty-state{
  display:flex;
  flex-direction:column;
  align-items:center;
  justify-content:center;
  text-align:center;
  padding:56px 24px;
  background:var(--c-card);
  border:1px dashed var(--c-line);
  border-radius:var(--r-card);
}
.empty-state i.empty-icon{
  font-size:52px;
  color:var(--c-text-3);
  margin-bottom:16px;
}
.empty-state p{
  margin:0 0 18px;
  font-size:15px;
  color:var(--c-text-2);
}

/* ============ FAQ ============ */
.faq-wrap{max-width:860px;margin:0 auto}
.faq-item{border-bottom:1px solid var(--c-line)}
.faq-item:first-child{border-top:1px solid var(--c-line)}
.faq-item summary{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:20px;
  padding:20px 4px;
  font-size:16px;
  font-weight:600;
  color:var(--c-text);
  cursor:pointer;
  list-style:none;
  transition:color .18s ease;
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::after{
  content:"+";
  flex:0 0 auto;
  color:var(--c-primary);
  font-size:22px;
  font-weight:400;
  line-height:1;
}
.faq-item[open] summary::after{content:"\2212"}
.faq-item summary:hover{color:var(--c-primary)}
.faq-answer{
  padding:0 4px 22px;
  font-size:15px;
  line-height:1.85;
  color:var(--c-text-2);
  max-width:760px;
}

/* ============ 页脚 ============ */
.site-footer{
  margin-top:56px;
  background:#F0F4FA;
  border-top:1px solid var(--c-line);
}
.footer-top{
  display:grid;
  grid-template-columns:1.4fr 1fr 1fr 1.3fr;
  gap:40px;
  padding:56px 0 40px;
}
.footer-brand{display:inline-flex;align-items:center;gap:10px;margin-bottom:14px}
.footer-brand .brand-mark{width:22px;height:22px}
.footer-brand .brand-name{font-size:17px}
.footer-desc{
  font-size:14px;
  line-height:1.8;
  color:var(--c-text-2);
  margin:0 0 18px;
  max-width:300px;
}
.social-row{display:flex;gap:10px}
.social-row a{
  width:36px;
  height:36px;
  border-radius:50%;
  background:#fff;
  border:1px solid var(--c-line);
  color:var(--c-text-2);
  display:inline-flex;
  align-items:center;
  justify-content:center;
  font-size:14px;
  transition:color .18s ease,border-color .18s ease,transform .18s ease;
}
.social-row a:hover{color:var(--c-primary);border-color:var(--c-primary);transform:translateY(-2px)}
.footer-title{
  font-size:14px;
  font-weight:600;
  color:var(--c-deep);
  margin:0 0 16px;
}
.footer-list li{margin-bottom:10px}
.footer-list a{font-size:14px;color:var(--c-text-2)}
.footer-list a:hover{color:var(--c-primary)}
.footer-form{display:flex;gap:10px;margin-top:14px}
.footer-form input{
  flex:1 1 auto;
  min-width:0;
  height:44px;
  padding:0 14px;
  border:1px solid #D8E3F1;
  border-radius:var(--r-btn);
  background:#fff;
  color:var(--c-text);
  font-size:14px;
}
.footer-form input::placeholder{color:var(--c-text-3)}
.footer-form input:focus{
  outline:none;
  border-color:var(--c-primary);
  box-shadow:0 0 0 3px rgba(43,95,168,.15);
}
.footer-note{font-size:13px;color:var(--c-text-3);margin:12px 0 0;line-height:1.75}
.footer-bottom{
  border-top:1px solid var(--c-line);
  padding:20px 0 26px;
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  justify-content:space-between;
  gap:10px;
  font-size:13px;
  color:var(--c-text-3);
}
.footer-bottom p{margin:0}

/* ============ 响应式 ============ */
@media screen and (max-width:1150px){
  .rail-card{flex:0 0 calc((100% - 36px) / 3)}
  .rank-grid{gap:0 36px}
}
@media screen and (max-width:1024px){
  .section{padding:44px 0}
  .hero{min-height:440px;padding:44px 36px}
  .search-box{width:180px}
  .nav-links{gap:20px}
  .coll-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .news-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .footer-top{grid-template-columns:1fr 1fr;gap:32px}
  .cta-band{padding:38px 36px}
}
@media screen and (max-width:900px){
  .nav-toggle{display:inline-flex}
  .nav-links{
    position:fixed;
    top:72px;
    left:0;
    right:0;
    bottom:0;
    display:none;
    flex-direction:column;
    align-items:stretch;
    gap:0;
    padding:16px 24px 40px;
    background:#fff;
    overflow-y:auto;
    z-index:70;
  }
  body.nav-open .nav-links{display:flex}
  .nav-links .nav-link{
    width:100%;
    padding:16px 2px;
    font-size:16px;
    border-bottom:1px solid var(--c-line);
  }
  .nav-links .nav-link.is-active::after{display:none}
  .nav-links .nav-link.is-active{color:var(--c-primary)}
  .mobile-only{display:block;margin-top:22px}
  .mobile-only .search-box{width:100%;margin-bottom:14px}
  .mobile-only .btn{width:100%;margin-bottom:10px}
  .mobile-only .login-link{display:block;text-align:center;padding:10px 0}
  .nav-actions .search-box,
  .nav-actions .login-link,
  .nav-actions .btn{display:none}
}
@media screen and (max-width:768px){
  .container{padding-left:18px;padding-right:18px}
  .section{padding:36px 0}
  .rank-grid{grid-template-columns:1fr;gap:0}
  .coll-grid{grid-template-columns:1fr}
  .news-grid{grid-template-columns:1fr}
  .cta-band{flex-direction:column;align-items:flex-start;gap:24px;padding:32px 26px}
  .cta-actions{width:100%}
  .cta-actions .btn{flex:1 1 140px}
  .section-head{flex-direction:column;align-items:flex-start;gap:12px}
  .footer-top{grid-template-columns:1fr;gap:28px;padding:40px 0 28px}
}
@media screen and (max-width:640px){
  .hero{
    min-height:380px;
    padding:32px 22px;
    border-radius:16px;
    background-image:
      linear-gradient(120deg,rgba(22,50,79,.9) 0%,rgba(22,50,79,.7) 60%,rgba(22,50,79,.45) 100%),
      url('/assets/images/backpic/back-1.png');
  }
  .hero-actions{gap:10px}
  .hero-actions .btn{flex:1 1 130px;padding:0 14px;font-size:14px}
  .hero-metrics{font-size:12px;gap:8px}
  .hero-dots{right:18px;bottom:16px}
  .rail-card{flex:0 0 72vw;min-width:0}
  .coll-card{flex-direction:column;gap:16px}
  .coll-mosaic{flex:0 0 auto;width:100%}
  .news-card{padding:20px}
  .cta-band h2{font-size:24px}
  .footer-form{flex-direction:column}
  .footer-form .btn{width:100%}
  .footer-bottom{flex-direction:column;align-items:flex-start}
  .rank-thumb{flex:0 0 60px;width:60px;height:60px}
  .rank-num{flex:0 0 32px;font-size:22px}
}

/* roulang page: article */
:root{
  --c-primary:#2B5FA8;
  --c-deep:#16324F;
  --c-soft:#E8F0FB;
  --c-accent:#E9A13B;
  --c-bg:#F6F8FC;
  --c-card:#FFFFFF;
  --c-line:#E3EAF3;
  --c-text:#16202E;
  --c-text-2:#5A6B80;
  --c-text-3:#8A99AC;
  --r-card:16px;
  --r-btn:10px;
  --r-img:12px;
  --r-big:20px;
  --sh-card:0 2px 8px rgba(22,50,79,.06);
  --sh-hover:0 12px 28px rgba(22,50,79,.12);
  --sh-nav:0 1px 0 rgba(22,50,79,.06);
  --section-gap:92px;
  --font-stack:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei",system-ui,-apple-system,sans-serif;
}

*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;}
body{
  margin:0;
  font-family:var(--font-stack);
  font-size:16px;
  line-height:1.8;
  color:var(--c-text);
  background:var(--c-bg);
  -webkit-font-smoothing:antialiased;
  -moz-osx-font-smoothing:grayscale;
}
h1,h2,h3,h4,p,ul,ol,figure,blockquote{margin:0;}
ul,ol{padding:0;list-style:none;}
img{max-width:100%;display:block;border:0;}
a{color:var(--c-primary);text-decoration:none;transition:color .18s ease,border-color .18s ease;}
a:hover{text-decoration:none;}
button{font-family:inherit;}
input,textarea,select{font-family:inherit;font-size:14px;}
::selection{background:rgba(43,95,168,.16);}

.container{
  width:100%;
  max-width:1200px;
  margin:0 auto;
  padding:0 24px;
}

/* ---------- 按钮体系 ---------- */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  height:44px;
  padding:0 22px;
  border:1px solid transparent;
  border-radius:var(--r-btn);
  font-size:15px;
  font-weight:600;
  line-height:1;
  cursor:pointer;
  text-decoration:none;
  white-space:nowrap;
  transition:transform .18s ease,background .18s ease,box-shadow .18s ease,color .18s ease,border-color .18s ease;
}
.btn:hover{text-decoration:none;}
.btn:focus-visible{outline:2px solid var(--c-primary);outline-offset:2px;}
.btn-primary{background:var(--c-primary);color:#fff;}
.btn-primary:hover{background:var(--c-deep);color:#fff;transform:translateY(-2px);box-shadow:0 8px 18px rgba(43,95,168,.24);}
.btn-primary:active{transform:translateY(-1px);box-shadow:none;}
.btn-primary:disabled,.btn-primary.is-disabled{background:#B9C7D9;color:#fff;cursor:not-allowed;transform:none;box-shadow:none;}
.btn-ghost{background:#fff;border-color:#D8E3F1;color:var(--c-deep);}
.btn-ghost:hover{background:var(--c-soft);border-color:var(--c-primary);color:var(--c-deep);}
.btn-ghost:active{transform:translateY(1px);}
.btn-light{background:#fff;color:var(--c-deep);}
.btn-light:hover{background:var(--c-soft);color:var(--c-deep);transform:translateY(-2px);}
.btn-outline-light{background:transparent;border-color:rgba(255,255,255,.55);color:#fff;}
.btn-outline-light:hover{background:rgba(255,255,255,.12);color:#fff;border-color:#fff;}
.btn-sm{height:38px;padding:0 16px;font-size:14px;}
.link-more{
  display:inline-flex;
  align-items:center;
  gap:6px;
  font-size:14px;
  font-weight:600;
  color:var(--c-primary);
}
.link-more i{transition:transform .18s ease;}
.link-more:hover{color:var(--c-deep);text-decoration:underline;text-underline-offset:4px;}
.link-more:hover i{transform:translateX(3px);}

/* ---------- 导航 ---------- */
.site-header{
  position:sticky;
  top:0;
  z-index:60;
  background:#fff;
  box-shadow:var(--sh-nav);
}
.header-inner{
  display:flex;
  align-items:center;
  gap:20px;
  height:72px;
}
.brand{
  display:inline-flex;
  align-items:center;
  gap:9px;
  color:var(--c-deep);
  font-size:18px;
  font-weight:700;
  letter-spacing:-.01em;
  flex-shrink:0;
}
.brand:hover{color:var(--c-deep);}
.brand-mark{
  width:24px;
  height:24px;
  color:var(--c-primary);
  flex-shrink:0;
}
.nav-links{
  display:flex;
  align-items:center;
  gap:2px;
  flex:1;
  margin-left:6px;
}
.nav-link{
  position:relative;
  display:inline-flex;
  align-items:center;
  height:72px;
  padding:0 13px;
  font-size:15px;
  color:var(--c-text-2);
  white-space:nowrap;
}
.nav-link:hover{color:var(--c-primary);}
.nav-link.is-active{color:var(--c-deep);font-weight:600;}
.nav-link.is-active::after{
  content:"";
  position:absolute;
  left:50%;
  bottom:20px;
  transform:translateX(-50%);
  width:20px;
  height:2px;
  border-radius:2px;
  background:var(--c-primary);
}
.nav-actions{
  display:flex;
  align-items:center;
  gap:14px;
  margin-left:auto;
  flex-shrink:0;
}
.search-box{
  position:relative;
  display:flex;
  align-items:center;
}
.search-box .search-icon{
  position:absolute;
  left:13px;
  font-size:13px;
  color:var(--c-text-3);
  pointer-events:none;
}
.search-box input[type="search"]{
  width:230px;
  height:40px;
  margin:0;
  padding:0 14px 0 34px;
  border:1px solid var(--c-line);
  border-radius:var(--r-btn);
  background:var(--c-bg);
  font-size:13px;
  color:var(--c-text);
  transition:border-color .18s ease,box-shadow .18s ease,background .18s ease;
}
.search-box input[type="search"]::placeholder{color:var(--c-text-3);}
.search-box input[type="search"]:focus{
  outline:none;
  background:#fff;
  border-color:var(--c-primary);
  box-shadow:0 0 0 3px rgba(43,95,168,.15);
}
.login-link{
  font-size:15px;
  color:var(--c-text-2);
}
.login-link:hover{color:var(--c-primary);}
.nav-toggle{
  display:none;
  align-items:center;
  justify-content:center;
  width:40px;
  height:40px;
  padding:0;
  background:#fff;
  border:1px solid var(--c-line);
  border-radius:10px;
  color:var(--c-deep);
  font-size:16px;
  cursor:pointer;
}
.nav-toggle:hover{border-color:var(--c-primary);color:var(--c-primary);}
.mobile-only{display:none;}

/* ---------- 面包屑 ---------- */
.crumb-bar{
  background:#fff;
  border-bottom:1px solid var(--c-line);
}
.breadcrumb{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:6px;
  padding:14px 0;
  font-size:13px;
  color:var(--c-text-2);
}
.breadcrumb a{color:var(--c-text-2);}
.breadcrumb a:hover{color:var(--c-primary);}
.breadcrumb .sep{color:var(--c-text-3);}
.breadcrumb .crumb-current{
  color:var(--c-deep);
  font-weight:600;
  max-width:100%;
  overflow:hidden;
  text-overflow:ellipsis;
  white-space:nowrap;
}

/* ---------- 文章头 ---------- */
.article-head{
  background:#fff;
  padding:36px 0 0;
}
.article-head-inner{
  max-width:860px;
}
.tag{
  display:inline-flex;
  align-items:center;
  gap:6px;
  height:26px;
  padding:0 12px;
  border-radius:999px;
  background:var(--c-soft);
  color:var(--c-primary);
  font-size:12px;
  font-weight:600;
  letter-spacing:.02em;
}
.article-title{
  margin:16px 0 18px;
  font-size:clamp(28px,3.4vw,38px);
  line-height:1.32;
  font-weight:700;
  letter-spacing:-.01em;
  color:var(--c-deep);
  max-width:820px;
}
.article-meta{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:8px 22px;
  font-size:13px;
  color:var(--c-text-2);
  padding-bottom:28px;
}
.article-meta span{display:inline-flex;align-items:center;gap:6px;}
.article-meta i{color:var(--c-text-3);font-size:12px;}
.article-cover{
  max-width:1040px;
  margin:0 auto;
  border-radius:var(--r-big);
  overflow:hidden;
  box-shadow:var(--sh-card);
  background:var(--c-soft);
  aspect-ratio:16/9;
}
.article-cover img{
  width:100%;
  height:100%;
  object-fit:cover;
}

/* ---------- 正文 ---------- */
.article-main{
  background:var(--c-bg);
  padding:56px 0 0;
}
.article-body{
  max-width:760px;
  margin:0 auto;
  font-size:17px;
  line-height:1.9;
  color:var(--c-text);
}
.article-body p{margin:0 0 1.4em;}
.article-body h1,
.article-body h2{
  font-size:clamp(22px,2.4vw,26px);
  line-height:1.45;
  font-weight:700;
  color:var(--c-deep);
  margin:48px 0 16px;
}
.article-body h1:first-child,
.article-body h2:first-child{margin-top:0;}
.article-body h3,
.article-body h4{
  font-size:20px;
  line-height:1.5;
  font-weight:600;
  color:var(--c-text);
  margin:32px 0 12px;
}
.article-body ul,
.article-body ol{
  padding-left:24px;
  margin:0 0 1.4em;
  line-height:1.85;
  list-style:disc;
}
.article-body ol{list-style:decimal;}
.article-body li{margin-bottom:.5em;}
.article-body li::marker{color:var(--c-primary);}
.article-body blockquote{
  margin:26px 0;
  padding:16px 20px;
  border-left:3px solid var(--c-primary);
  border-radius:0 10px 10px 0;
  background:var(--c-soft);
  color:var(--c-text-2);
  font-size:16px;
}
.article-body blockquote p:last-child{margin-bottom:0;}
.article-body img{
  border-radius:var(--r-img);
  margin:26px auto 10px;
}
.article-body figure{margin:26px 0;}
.article-body figcaption{
  font-size:13px;
  color:var(--c-text-3);
  text-align:center;
  margin-top:8px;
}
.article-body a{
  color:var(--c-primary);
  border-bottom:1px solid rgba(43,95,168,.35);
}
.article-body a:hover{
  color:var(--c-deep);
  border-bottom-color:var(--c-deep);
}
.article-body strong{font-weight:600;color:var(--c-deep);}
.article-body table{
  width:100%;
  border-collapse:collapse;
  margin:26px 0;
  font-size:15px;
  border:1px solid var(--c-line);
  border-radius:var(--r-img);
  overflow:hidden;
}
.article-body th,
.article-body td{
  border:1px solid var(--c-line);
  padding:11px 14px;
  min-height:44px;
  text-align:left;
  line-height:1.7;
}
.article-body th{background:var(--c-soft);color:var(--c-deep);font-weight:600;}
.article-body tbody tr:nth-child(even){background:#FBFCFE;}
.article-body code{
  background:var(--c-soft);
  color:var(--c-deep);
  padding:2px 6px;
  border-radius:6px;
  font-size:.92em;
}
.article-body hr{
  border:0;
  border-top:1px solid var(--c-line);
  margin:36px 0;
}

/* 空态 */
.empty-state{
  max-width:760px;
  margin:0 auto;
  padding:56px 28px;
  background:var(--c-card);
  border:1px solid var(--c-line);
  border-radius:var(--r-big);
  box-shadow:var(--sh-card);
  text-align:center;
}
.empty-state i{
  font-size:44px;
  color:var(--c-text-3);
  margin-bottom:16px;
  display:block;
}
.empty-state h2{
  font-size:20px;
  font-weight:600;
  color:var(--c-deep);
  margin-bottom:8px;
}
.empty-state p{
  font-size:15px;
  color:var(--c-text-2);
  margin-bottom:22px;
}

/* ---------- 文末区 ---------- */
.article-foot{
  max-width:760px;
  margin:44px auto 0;
  padding:24px 0 0;
  border-top:1px solid var(--c-line);
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  justify-content:space-between;
  gap:18px;
}
.tag-list{
  display:flex;
  flex-wrap:wrap;
  gap:8px;
}
.tag-list a{
  display:inline-flex;
  align-items:center;
  height:28px;
  padding:0 12px;
  border-radius:999px;
  border:1px solid var(--c-line);
  background:#fff;
  font-size:12px;
  color:var(--c-text-2);
}
.tag-list a:hover{
  border-color:var(--c-primary);
  background:var(--c-soft);
  color:var(--c-primary);
}
.foot-right{
  display:flex;
  align-items:center;
  gap:18px;
}
.icon-group{display:flex;gap:8px;}
.icon-group a{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  width:34px;
  height:34px;
  border-radius:50%;
  border:1px solid var(--c-line);
  background:#fff;
  color:var(--c-text-2);
  font-size:14px;
}
.icon-group a:hover{
  border-color:var(--c-primary);
  color:var(--c-primary);
  background:var(--c-soft);
}

/* ---------- 相关推荐 ---------- */
.related{
  padding:var(--section-gap) 0 0;
}
.section-head{
  display:flex;
  flex-wrap:wrap;
  align-items:flex-end;
  justify-content:space-between;
  gap:12px;
  margin-bottom:28px;
}
.section-head h2{
  font-size:clamp(22px,2.6vw,30px);
  line-height:1.35;
  font-weight:700;
  color:var(--c-deep);
  letter-spacing:-.01em;
}
.section-head p{
  margin-top:8px;
  font-size:15px;
  color:var(--c-text-2);
}
.card-grid{
  display:grid;
  grid-template-columns:repeat(3,1fr);
  gap:24px;
}
.media-card{
  display:flex;
  flex-direction:column;
  background:var(--c-card);
  border:1px solid var(--c-line);
  border-radius:var(--r-card);
  box-shadow:var(--sh-card);
  overflow:hidden;
  transition:transform .2s ease,box-shadow .2s ease;
}
.media-card:hover{
  transform:translateY(-4px);
  box-shadow:var(--sh-hover);
}
.media-card .thumb{
  position:relative;
  aspect-ratio:16/10;
  overflow:hidden;
  background:var(--c-soft);
}
.media-card .thumb img{
  width:100%;
  height:100%;
  object-fit:cover;
  transition:transform .3s ease;
}
.media-card:hover .thumb img{transform:scale(1.03);}
.media-card .thumb .chip{
  position:absolute;
  top:10px;
  left:10px;
  height:24px;
  padding:0 10px;
  display:inline-flex;
  align-items:center;
  border-radius:999px;
  background:rgba(255,255,255,.92);
  color:var(--c-primary);
  font-size:12px;
  font-weight:600;
}
.media-card .body{
  padding:18px 20px 20px;
  display:flex;
  flex-direction:column;
  gap:8px;
  flex:1;
}
.media-card h3{
  font-size:17px;
  line-height:1.5;
  font-weight:600;
  color:var(--c-text);
}
.media-card:hover h3{color:var(--c-primary);}
.media-card p{
  font-size:14px;
  line-height:1.75;
  color:var(--c-text-2);
}
.media-card .meta-line{
  margin-top:auto;
  padding-top:6px;
  font-size:13px;
  color:var(--c-text-3);
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:10px;
}

/* ---------- CTA ---------- */
.cta-wrap{padding:var(--section-gap) 0 0;}
.cta-band{
  position:relative;
  display:grid;
  grid-template-columns:1.4fr .9fr;
  align-items:center;
  gap:32px;
  padding:48px 52px;
  border-radius:var(--r-big);
  background:var(--c-deep);
  overflow:hidden;
}
.cta-band::before{
  content:"";
  position:absolute;
  inset:0;
  background-image:radial-gradient(rgba(255,255,255,.14) 1px,transparent 1px);
  background-size:22px 22px;
  opacity:.35;
  pointer-events:none;
}
.cta-band > *{position:relative;}
.cta-band h2{
  font-size:clamp(22px,2.6vw,30px);
  line-height:1.4;
  font-weight:700;
  color:#fff;
  margin-bottom:10px;
}
.cta-band p{
  font-size:15px;
  line-height:1.8;
  color:#B9C7D9;
  max-width:520px;
}
.cta-actions{
  display:flex;
  flex-wrap:wrap;
  gap:12px;
  justify-content:flex-end;
}

/* ---------- 页脚 ---------- */
.site-footer{
  margin-top:var(--section-gap);
  background:#F0F4FA;
  border-top:1px solid var(--c-line);
}
.footer-top{
  display:grid;
  grid-template-columns:1.5fr 1fr 1fr 1.4fr;
  gap:40px;
  padding:56px 0 40px;
}
.footer-brand{
  display:inline-flex;
  align-items:center;
  gap:9px;
  color:var(--c-deep);
  font-size:17px;
  font-weight:700;
  margin-bottom:14px;
}
.footer-desc{
  font-size:14px;
  line-height:1.8;
  color:var(--c-text-2);
  max-width:320px;
}
.social-row{
  display:flex;
  gap:10px;
  margin-top:18px;
}
.social-row a{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  width:36px;
  height:36px;
  border-radius:50%;
  background:#fff;
  border:1px solid var(--c-line);
  color:var(--c-text-2);
  font-size:14px;
}
.social-row a:hover{
  border-color:var(--c-primary);
  color:var(--c-primary);
  background:var(--c-soft);
}
.footer-title{
  font-size:14px;
  font-weight:600;
  color:var(--c-deep);
  margin-bottom:14px;
}
.footer-list li{margin-bottom:10px;}
.footer-list a{
  font-size:14px;
  color:var(--c-text-2);
}
.footer-list a:hover{color:var(--c-primary);}
.footer-form{
  display:flex;
  gap:10px;
  margin-top:4px;
}
.footer-form input[type="email"]{
  flex:1;
  min-width:0;
  height:44px;
  padding:0 14px;
  border:1px solid #D8E3F1;
  border-radius:var(--r-btn);
  background:#fff;
  color:var(--c-text);
  font-size:14px;
  transition:border-color .18s ease,box-shadow .18s ease;
}
.footer-form input[type="email"]::placeholder{color:var(--c-text-3);}
.footer-form input[type="email"]:focus{
  outline:none;
  border-color:var(--c-primary);
  box-shadow:0 0 0 3px rgba(43,95,168,.15);
}
.footer-form .btn{height:44px;padding:0 18px;}
.footer-note{
  margin-top:10px;
  font-size:12px;
  color:var(--c-text-3);
}
.footer-bottom{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  justify-content:space-between;
  gap:10px;
  padding:18px 0;
  border-top:1px solid var(--c-line);
  font-size:13px;
  color:var(--c-text-3);
}

/* ---------- 响应式 ---------- */
@media (max-width:1100px){
  .search-box input[type="search"]{width:180px;}
  .nav-link{padding:0 9px;font-size:14px;}
  .footer-top{grid-template-columns:1fr 1fr;gap:34px;}
}
@media (max-width:960px){
  :root{--section-gap:72px;}
  .nav-toggle{display:inline-flex;}
  .nav-links{
    position:fixed;
    top:72px;
    left:0;
    right:0;
    bottom:0;
    z-index:70;
    display:none;
    flex-direction:column;
    align-items:stretch;
    gap:0;
    margin:0;
    padding:14px 20px 36px;
    background:#fff;
    overflow-y:auto;
    box-shadow:var(--sh-hover);
  }
  .nav-links.is-open{display:flex;}
  .nav-link{
    height:54px;
    padding:0 4px;
    justify-content:flex-start;
    font-size:16px;
    border-bottom:1px solid var(--c-line);
  }
  .nav-link.is-active::after{display:none;}
  .nav-link.is-active{color:var(--c-primary);}
  .nav-actions .search-box,
  .nav-actions .login-link{display:none;}
  .mobile-only{display:block;margin-top:18px;}
  .mobile-only .search-box{margin-bottom:12px;}
  .mobile-only .search-box input[type="search"]{width:100%;height:46px;}
  .mobile-only .btn{width:100%;margin-bottom:10px;}
  .card-grid{grid-template-columns:repeat(2,1fr);}
  .cta-band{grid-template-columns:1fr;padding:38px 32px;}
  .cta-actions{justify-content:flex-start;}
  .article-cover{border-radius:var(--r-card);}
}
@media (max-width:640px){
  :root{--section-gap:56px;}
  .container{padding:0 16px;}
  .header-inner{height:64px;gap:12px;}
  .brand{font-size:16px;}
  .brand-mark{width:21px;height:21px;}
  .nav-links{top:64px;}
  .search-box input[type="search"]{font-size:13px;}
  .article-head{padding:24px 0 0;}
  .article-title{font-size:26px;margin:14px 0 14px;}
  .article-meta{gap:6px 16px;padding-bottom:22px;}
  .article-main{padding-top:34px;}
  .article-body{font-size:16px;line-height:1.85;}
  .article-body h2{margin-top:34px;}
  .article-body table{font-size:14px;}
  .article-body th,.article-body td{padding:9px 10px;}
  .article-body ul,.article-body ol{padding-left:20px;}
  .article-foot{flex-direction:column;align-items:flex-start;}
  .card-grid{grid-template-columns:1fr;}
  .section-head h2{font-size:22px;}
  .cta-band{padding:30px 22px;border-radius:var(--r-card);}
  .cta-actions .btn{flex:1 1 100%;}
  .footer-top{grid-template-columns:1fr;gap:28px;padding:40px 0 30px;}
  .footer-form{flex-wrap:wrap;}
  .footer-form input[type="email"]{flex:1 1 100%;}
  .footer-form .btn{width:100%;}
  .footer-bottom{flex-direction:column;align-items:flex-start;}
  .empty-state{padding:40px 20px;}
}

/* roulang page: category1 */
:root{
  --c-primary:#2B5FA8;
  --c-deep:#16324F;
  --c-soft:#E8F0FB;
  --c-accent:#E9A13B;
  --c-bg:#F6F8FC;
  --c-card:#FFFFFF;
  --c-line:#E3EAF3;
  --c-text:#16202E;
  --c-text-2:#5A6B80;
  --c-text-3:#8A99AC;
  --r-card:16px;
  --r-big:20px;
  --r-btn:10px;
  --r-img:12px;
  --sh-card:0 2px 8px rgba(22,50,79,.06);
  --sh-hover:0 12px 28px rgba(22,50,79,.12);
  --sh-primary:0 8px 18px rgba(43,95,168,.24);
  --w-container:1200px;
}

*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei",system-ui,-apple-system,sans-serif;
  font-size:16px;
  line-height:1.8;
  color:var(--c-text);
  background:var(--c-bg);
  -webkit-font-smoothing:antialiased;
  -moz-osx-font-smoothing:grayscale;
}
h1,h2,h3,h4,p,ul,ol,figure{margin:0;padding:0;}
h1,h2,h3,h4{color:var(--c-deep);font-weight:700;line-height:1.35;letter-spacing:-.01em;}
ul,ol{list-style:none;}
a{color:var(--c-primary);text-decoration:none;transition:color .2s ease;}
a:hover{color:var(--c-deep);}
img{max-width:100%;display:block;border:0;}
button{font-family:inherit;}
input,button,textarea,select{font-family:inherit;font-size:inherit;}

.container{
  width:100%;
  max-width:var(--w-container);
  margin:0 auto;
  padding:0 24px;
}

.skip-link{
  position:absolute;left:-9999px;top:0;z-index:999;
  background:var(--c-primary);color:#fff;padding:10px 18px;border-radius:0 0 var(--r-btn) 0;
}
.skip-link:focus{left:0;color:#fff;}

/* ---------- 导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:120;
  background:#fff;
  box-shadow:0 1px 0 rgba(22,50,79,.08);
}
.header-inner{
  display:flex;
  align-items:center;
  gap:26px;
  height:72px;
}
.brand{
  display:inline-flex;
  align-items:center;
  gap:8px;
  color:var(--c-deep);
  white-space:nowrap;
}
.brand:hover{color:var(--c-primary);}
.brand-mark{width:24px;height:24px;color:var(--c-primary);flex:none;}
.brand-name{font-size:18px;font-weight:700;letter-spacing:-.01em;}

.nav-links{
  display:flex;
  align-items:center;
  gap:26px;
  margin-left:6px;
}
.nav-link{
  position:relative;
  display:inline-block;
  padding:26px 0;
  font-size:15px;
  color:var(--c-text-2);
  line-height:1;
}
.nav-link:hover{color:var(--c-primary);}
.nav-link.is-active{color:var(--c-primary);font-weight:600;}
.nav-link.is-active::after{
  content:"";
  position:absolute;
  left:50%;bottom:16px;
  width:20px;height:2px;
  background:var(--c-primary);
  border-radius:2px;
  transform:translateX(-50%);
}
.mobile-only{display:none;}

.nav-actions{
  margin-left:auto;
  display:flex;
  align-items:center;
  gap:14px;
}
.search-box{
  position:relative;
  display:flex;
  align-items:center;
  width:232px;
}
.search-box .search-icon{
  position:absolute;
  left:12px;
  font-size:13px;
  color:var(--c-text-3);
  pointer-events:none;
}
.search-box input{
  width:100%;
  height:40px;
  margin:0;
  padding:0 12px 0 34px;
  border:1px solid var(--c-line);
  border-radius:var(--r-btn);
  background:var(--c-bg);
  font-size:13px;
  color:var(--c-text);
  transition:border-color .2s ease,background .2s ease,box-shadow .2s ease;
}
.search-box input::placeholder{color:var(--c-text-3);}
.search-box input:focus{
  outline:none;
  background:#fff;
  border-color:var(--c-primary);
  box-shadow:0 0 0 3px rgba(43,95,168,.15);
}
.login-link{
  font-size:15px;
  color:var(--c-text-2);
}
.login-link:hover{color:var(--c-primary);}
.nav-toggle{
  display:none;
  width:40px;height:40px;
  padding:0;
  border:1px solid var(--c-line);
  border-radius:var(--r-btn);
  background:#fff;
  color:var(--c-deep);
  font-size:16px;
  cursor:pointer;
}
.nav-toggle:hover{background:var(--c-soft);border-color:var(--c-primary);color:var(--c-primary);}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  height:44px;
  margin:0;
  padding:0 22px;
  border:1px solid transparent;
  border-radius:var(--r-btn);
  font-size:15px;
  font-weight:600;
  line-height:1;
  text-decoration:none;
  cursor:pointer;
  transition:background .2s ease,color .2s ease,border-color .2s ease,transform .2s ease,box-shadow .2s ease;
}
.btn:focus-visible{
  outline:2px solid var(--c-primary);
  outline-offset:2px;
}
.btn-primary{
  background:var(--c-primary);
  color:#fff;
}
.btn-primary:hover{
  background:var(--c-deep);
  color:#fff;
  transform:translateY(-2px);
  box-shadow:var(--sh-primary);
}
.btn-primary:active{transform:translateY(1px);box-shadow:none;}
.btn-ghost{
  background:#fff;
  color:var(--c-deep);
  border-color:#D8E3F1;
}
.btn-ghost:hover{
  background:var(--c-soft);
  border-color:var(--c-primary);
  color:var(--c-primary);
}
.btn-ghost:active{transform:translateY(1px);}
.btn-white{
  background:#fff;
  color:var(--c-deep);
}
.btn-white:hover{
  background:var(--c-soft);
  color:var(--c-deep);
  transform:translateY(-2px);
}
.btn-outline-white{
  background:transparent;
  color:#fff;
  border-color:rgba(255,255,255,.52);
}
.btn-outline-white:hover{
  background:rgba(255,255,255,.12);
  color:#fff;
  border-color:#fff;
  transform:translateY(-2px);
}
.btn-sm{height:38px;padding:0 16px;font-size:14px;}
.btn:disabled,.btn.is-disabled{
  opacity:.5;
  cursor:not-allowed;
  transform:none;
  box-shadow:none;
}

/* ---------- 分类页头 ---------- */
.page-hero{
  position:relative;
  overflow:hidden;
  background:var(--c-deep);
  isolation:isolate;
}
.page-hero .hero-bg{
  position:absolute;
  inset:0;
  width:100%;height:100%;
  object-fit:cover;
  z-index:-2;
}
.page-hero::after{
  content:"";
  position:absolute;
  inset:0;
  z-index:-1;
  background:linear-gradient(100deg,rgba(22,50,79,.94) 0%,rgba(22,50,79,.82) 46%,rgba(22,50,79,.42) 100%);
}
.hero-inner{
  padding-top:34px;
  padding-bottom:64px;
}
.breadcrumb{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:8px;
  font-size:13px;
  color:#B9C7D9;
  margin-bottom:26px;
}
.breadcrumb a{color:#D8E3F1;}
.breadcrumb a:hover{color:#fff;}
.breadcrumb .sep{color:rgba(255,255,255,.45);}
.breadcrumb .current{color:#fff;font-weight:600;}

.hero-badge{
  display:inline-flex;
  align-items:center;
  gap:6px;
  height:28px;
  padding:0 14px;
  border:1px solid rgba(255,255,255,.42);
  border-radius:999px;
  font-size:12px;
  font-weight:600;
  color:#fff;
  letter-spacing:.04em;
  margin-bottom:18px;
}
.hero-badge::before{
  content:"";
  width:6px;height:6px;border-radius:50%;
  background:var(--c-accent);
}
.page-hero h1{
  font-size:clamp(30px,4vw,46px);
  line-height:1.25;
  color:#fff;
  letter-spacing:-.01em;
  max-width:720px;
  margin-bottom:16px;
}
.hero-sub{
  max-width:600px;
  font-size:16px;
  line-height:1.85;
  color:#D8E3F1;
  margin-bottom:22px;
}
.hero-meta{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:10px;
  font-size:13px;
  color:#B9C7D9;
  margin-bottom:28px;
}
.hero-meta span{display:inline-flex;align-items:center;gap:7px;}
.hero-meta span + span::before{
  content:"·";
  margin-right:2px;
  color:rgba(255,255,255,.4);
}
.hero-meta i{color:var(--c-accent);font-size:12px;}
.hero-actions{
  display:flex;
  flex-wrap:wrap;
  gap:12px;
}

/* ---------- 筛选条 ---------- */
.filter-section{
  background:#fff;
  border-bottom:1px solid var(--c-line);
  padding:22px 0;
}
.filter-bar{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:20px;
  flex-wrap:wrap;
}
.filter-pills{
  display:flex;
  flex-wrap:wrap;
  gap:10px;
}
.pill{
  height:38px;
  padding:0 18px;
  border:1px solid var(--c-line);
  border-radius:999px;
  background:#fff;
  color:var(--c-text-2);
  font-size:14px;
  font-weight:500;
  line-height:1;
  cursor:pointer;
  transition:background .2s ease,color .2s ease,border-color .2s ease,box-shadow .2s ease;
}
.pill:hover{
  border-color:var(--c-primary);
  color:var(--c-primary);
  background:var(--c-soft);
}
.pill:focus-visible{
  outline:2px solid var(--c-primary);
  outline-offset:2px;
}
.pill.is-active{
  background:var(--c-primary);
  border-color:var(--c-primary);
  color:#fff;
  box-shadow:0 4px 12px rgba(43,95,168,.22);
}
.filter-note{
  font-size:13px;
  color:var(--c-text-3);
}

/* ---------- 通用板块 ---------- */
.section{padding:88px 0;}
.section.tight{padding-top:64px;}
.section-head{
  display:flex;
  align-items:flex-end;
  justify-content:space-between;
  gap:24px;
  margin-bottom:34px;
}
.section-title{
  font-size:clamp(24px,2.6vw,32px);
  line-height:1.35;
  color:var(--c-deep);
}
.section-desc{
  margin-top:8px;
  font-size:15px;
  color:var(--c-text-2);
  max-width:640px;
}
.text-link{
  display:inline-flex;
  align-items:center;
  gap:6px;
  font-size:15px;
  font-weight:600;
  color:var(--c-primary);
  white-space:nowrap;
}
.text-link i{transition:transform .2s ease;}
.text-link:hover{text-decoration:underline;text-underline-offset:4px;}
.text-link:hover i{transform:translateX(3px);}

/* ---------- 海报网格 ---------- */
.poster-grid{
  display:grid;
  grid-template-columns:repeat(3,minmax(0,1fr));
  gap:24px;
}
.poster-card{
  display:flex;
  flex-direction:column;
  background:var(--c-card);
  border:1px solid var(--c-line);
  border-radius:var(--r-card);
  overflow:hidden;
  box-shadow:var(--sh-card);
  transition:transform .25s ease,box-shadow .25s ease,border-color .25s ease;
}
.poster-card:hover{
  transform:translateY(-4px);
  box-shadow:var(--sh-hover);
  border-color:#D4E2F4;
}
.poster-media{
  position:relative;
  aspect-ratio:16 / 10;
  overflow:hidden;
  background:var(--c-soft);
}
.poster-media img{
  width:100%;height:100%;
  object-fit:cover;
}
.poster-mask{
  position:absolute;
  inset:0;
  display:flex;
  align-items:center;
  justify-content:center;
  background:rgba(22,50,79,.32);
  opacity:0;
  transition:opacity .25s ease;
}
.poster-card:hover .poster-mask,
.poster-card:focus-within .poster-mask{opacity:1;}
.play-dot{
  width:44px;height:44px;
  display:flex;
  align-items:center;
  justify-content:center;
  border-radius:50%;
  background:#fff;
  color:var(--c-primary);
  font-size:14px;
}
.poster-tag{
  position:absolute;
  left:12px;top:12px;
  height:24px;
  padding:0 11px;
  display:inline-flex;
  align-items:center;
  border-radius:999px;
  background:rgba(255,255,255,.92);
  color:var(--c-primary);
  font-size:12px;
  font-weight:600;
  letter-spacing:.02em;
}
.poster-body{
  padding:16px 18px 18px;
  display:flex;
  flex-direction:column;
  gap:6px;
}
.poster-title{
  font-size:16px;
  font-weight:600;
  color:var(--c-text);
  line-height:1.5;
  white-space:nowrap;
  overflow:hidden;
  text-overflow:ellipsis;
  transition:color .2s ease;
}
.poster-card:hover .poster-title{color:var(--c-primary);}
.poster-info{
  font-size:13px;
  color:var(--c-text-2);
  line-height:1.6;
}
.poster-card a.card-link{
  display:block;
  color:inherit;
}
.poster-card a.card-link:hover{color:inherit;}

/* ---------- 挑片步骤 ---------- */
.step-grid{
  display:grid;
  grid-template-columns:repeat(3,minmax(0,1fr));
  gap:22px;
}
.step-card{
  position:relative;
  background:#fff;
  border:1px solid var(--c-line);
  border-radius:var(--r-card);
  padding:26px 24px;
  box-shadow:var(--sh-card);
  transition:transform .25s ease,box-shadow .25s ease;
}
.step-card:hover{transform:translateY(-4px);box-shadow:var(--sh-hover);}
.step-num{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  width:38px;height:38px;
  border-radius:12px;
  background:var(--c-soft);
  color:var(--c-primary);
  font-size:15px;
  font-weight:700;
  font-variant-numeric:tabular-nums;
  margin-bottom:16px;
}
.step-card h3{font-size:19px;margin-bottom:8px;}
.step-card p{font-size:15px;color:var(--c-text-2);line-height:1.85;}

/* ---------- 片库说明（左右分栏） ---------- */
.about-grid{
  display:grid;
  grid-template-columns:1.05fr .95fr;
  gap:48px;
  align-items:center;
}
.about-figure{
  border-radius:var(--r-big);
  overflow:hidden;
  box-shadow:var(--sh-card);
  border:1px solid var(--c-line);
  background:var(--c-soft);
}
.about-figure img{
  width:100%;
  aspect-ratio:16 / 10;
  object-fit:cover;
}
.about-list{
  display:grid;
  gap:18px;
  margin-top:26px;
}
.about-item{
  display:flex;
  gap:14px;
  padding:16px 18px;
  background:#fff;
  border:1px solid var(--c-line);
  border-radius:14px;
  transition:border-color .2s ease,box-shadow .2s ease;
}
.about-item:hover{border-color:#CFDFF3;box-shadow:var(--sh-card);}
.about-item i{
  flex:none;
  width:34px;height:34px;
  display:flex;align-items:center;justify-content:center;
  border-radius:10px;
  background:var(--c-soft);
  color:var(--c-primary);
  font-size:14px;
}
.about-item h3{font-size:16px;font-weight:600;color:var(--c-text);margin-bottom:4px;}
.about-item p{font-size:14px;color:var(--c-text-2);line-height:1.8;}

/* ---------- 数字条 ---------- */
.stats-band{
  background:#fff;
  border-top:1px solid var(--c-line);
  border-bottom:1px solid var(--c-line);
  padding:36px 0;
}
.stats-grid{
  display:grid;
  grid-template-columns:repeat(4,minmax(0,1fr));
  gap:24px;
  text-align:center;
}
.stat-num{
  display:block;
  font-size:26px;
  font-weight:700;
  color:var(--c-deep);
  font-variant-numeric:tabular-nums;
  line-height:1.4;
}
.stat-label{
  font-size:13px;
  color:var(--c-text-2);
}

/* ---------- FAQ ---------- */
.faq-wrap{max-width:860px;margin:0 auto;}
.faq-item{
  border-bottom:1px solid var(--c-line);
}
.faq-item:first-child{border-top:1px solid var(--c-line);}
.faq-item summary{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:18px;
  padding:22px 0;
  font-size:16px;
  font-weight:600;
  color:var(--c-text);
  line-height:1.6;
  cursor:pointer;
  list-style:none;
  transition:color .2s ease;
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary::after{
  content:"+";
  flex:none;
  color:var(--c-primary);
  font-size:20px;
  font-weight:600;
  line-height:1;
}
.faq-item[open] summary::after{content:"–";}
.faq-item summary:hover{color:var(--c-primary);}
.faq-item summary:focus-visible{outline:2px solid var(--c-primary);outline-offset:2px;}
.faq-answer{
  padding:0 0 22px;
  font-size:15px;
  line-height:1.85;
  color:var(--c-text-2);
  max-width:760px;
}

/* ---------- CTA ---------- */
.cta-section{padding-bottom:0;}
.cta-card{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:32px;
  padding:48px 44px;
  border-radius:var(--r-big);
  background:var(--c-deep);
  background-image:radial-gradient(rgba(255,255,255,.08) 1px,transparent 1px);
  background-size:18px 18px;
  color:#fff;
}
.cta-card h2{
  color:#fff;
  font-size:clamp(22px,2.4vw,30px);
  margin-bottom:10px;
}
.cta-card p{
  font-size:15px;
  color:#B9C7D9;
  line-height:1.8;
  max-width:520px;
}
.cta-actions{
  display:flex;
  gap:12px;
  flex:none;
}

/* ---------- 页脚 ---------- */
.site-footer{
  background:#F0F4FA;
  border-top:1px solid var(--c-line);
  margin-top:88px;
  padding:56px 0 26px;
}
.footer-top{
  display:grid;
  grid-template-columns:1.5fr .8fr .9fr 1.2fr;
  gap:40px;
}
.footer-brand{
  display:inline-flex;
  align-items:center;
  gap:8px;
  color:var(--c-deep);
  margin-bottom:14px;
}
.footer-brand:hover{color:var(--c-primary);}
.footer-desc{
  font-size:14px;
  line-height:1.85;
  color:var(--c-text-2);
  max-width:330px;
}
.social-row{
  display:flex;
  gap:10px;
  margin-top:18px;
}
.social-row a{
  width:34px;height:34px;
  display:flex;
  align-items:center;
  justify-content:center;
  border-radius:50%;
  background:#fff;
  border:1px solid var(--c-line);
  color:var(--c-text-2);
  font-size:14px;
  transition:color .2s ease,border-color .2s ease,transform .2s ease;
}
.social-row a:hover{
  color:var(--c-primary);
  border-color:var(--c-primary);
  transform:translateY(-2px);
}
.footer-title{
  font-size:14px;
  font-weight:600;
  color:var(--c-deep);
  margin-bottom:14px;
}
.footer-list{
  display:grid;
  gap:10px;
}
.footer-list a{
  font-size:14px;
  color:var(--c-text-2);
}
.footer-list a:hover{color:var(--c-primary);}
.footer-form{
  display:flex;
  gap:10px;
  margin-top:14px;
}
.footer-form input{
  flex:1;
  min-width:0;
  height:44px;
  margin:0;
  padding:0 14px;
  border:1px solid #D8E3F1;
  border-radius:var(--r-btn);
  background:#fff;
  font-size:14px;
  color:var(--c-text);
  transition:border-color .2s ease,box-shadow .2s ease;
}
.footer-form input::placeholder{color:var(--c-text-3);}
.footer-form input:focus{
  outline:none;
  border-color:var(--c-primary);
  box-shadow:0 0 0 3px rgba(43,95,168,.15);
}
.footer-form .btn{height:44px;padding:0 18px;}
.footer-note{
  margin-top:10px;
  font-size:12px;
  color:var(--c-text-3);
}
.footer-bottom{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  flex-wrap:wrap;
  margin-top:44px;
  padding-top:20px;
  border-top:1px solid var(--c-line);
  font-size:13px;
  color:var(--c-text-3);
}

/* ---------- 响应式 ---------- */
@media screen and (max-width:1024px){
  .header-inner{gap:16px;}
  .nav-links{
    position:fixed;
    left:0;right:0;
    top:72px;
    bottom:0;
    display:none;
    flex-direction:column;
    align-items:flex-start;
    gap:0;
    margin:0;
    padding:26px 24px 40px;
    background:#fff;
    overflow-y:auto;
    box-shadow:0 12px 28px rgba(22,50,79,.12);
  }
  .nav-links.is-open{display:flex;}
  .nav-link{
    width:100%;
    padding:16px 0;
    font-size:16px;
    border-bottom:1px solid var(--c-line);
  }
  .nav-link.is-active::after{display:none;}
  .nav-link.is-active{color:var(--c-primary);}
  .mobile-only{
    display:flex;
    flex-direction:column;
    gap:12px;
    width:100%;
    margin-top:22px;
  }
  .mobile-only .search-box{width:100%;}
  .mobile-only .btn{width:100%;}
  .nav-actions .search-box,
  .nav-actions .login-link,
  .nav-actions .btn-sm{display:none;}
  .nav-toggle{display:inline-flex;align-items:center;justify-content:center;}

  .hero-inner{padding-bottom:52px;}
  .section{padding:72px 0;}
  .about-grid{grid-template-columns:1fr;gap:32px;}
  .poster-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:20px;}
  .step-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
  .stats-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:28px;}
  .footer-top{grid-template-columns:1fr 1fr;gap:32px;}
  .cta-card{flex-direction:column;align-items:flex-start;padding:38px 30px;}
  .cta-actions{width:100%;}
  .cta-actions .btn{flex:1;}
}

@media screen and (max-width:640px){
  .container{padding:0 16px;}
  .header-inner{height:64px;}
  .nav-links{top:64px;padding:20px 16px 36px;}
  .brand-name{font-size:17px;}
  .hero-inner{padding-top:24px;padding-bottom:44px;}
  .breadcrumb{margin-bottom:20px;}
  .page-hero h1{font-size:28px;}
  .hero-sub{font-size:15px;}
  .hero-actions{flex-direction:column;align-items:stretch;}
  .hero-actions .btn{width:100%;}
  .filter-section{padding:18px 0;}
  .filter-bar{flex-direction:column;align-items:flex-start;gap:12px;}
  .pill{height:34px;padding:0 14px;font-size:13px;}
  .section{padding:56px 0;}
  .section-head{flex-direction:column;align-items:flex-start;gap:12px;margin-bottom:26px;}
  .poster-grid{grid-template-columns:1fr;gap:18px;}
  .step-grid{grid-template-columns:1fr;gap:16px;}
  .stats-grid{grid-template-columns:1fr 1fr;gap:22px;}
  .stat-num{font-size:22px;}
  .footer-top{grid-template-columns:1fr;gap:28px;}
  .footer-form{flex-direction:column;}
  .footer-form .btn{width:100%;}
  .footer-bottom{flex-direction:column;align-items:flex-start;gap:8px;}
  .cta-card{padding:32px 22px;}
  .cta-actions{flex-direction:column;}
  .cta-actions .btn{width:100%;}
}

/* roulang page: category2 */
:root{
  --c-primary:#2B5FA8;
  --c-primary-d:#24508E;
  --c-deep:#16324F;
  --c-soft:#E8F0FB;
  --c-accent:#E9A13B;
  --c-bg:#F6F8FC;
  --c-card:#FFFFFF;
  --c-line:#E3EAF3;
  --c-line-2:#D8E3F1;
  --c-text:#16202E;
  --c-text-2:#5A6B80;
  --c-text-3:#8A99AC;
  --r-card:16px;
  --r-btn:10px;
  --r-img:12px;
  --r-hero:20px;
  --r-pill:999px;
  --sh-card:0 2px 8px rgba(22,50,79,.06);
  --sh-hover:0 12px 28px rgba(22,50,79,.12);
  --sh-btn:0 8px 18px rgba(43,95,168,.24);
  --w-container:1200px;
  --sp-section:92px;
}

*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei",system-ui,-apple-system,sans-serif;
  font-size:16px;
  line-height:1.8;
  color:var(--c-text);
  background:var(--c-bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border-style:none;}
h1,h2,h3,h4,p,ul,ol,figure{margin:0;}
ul,ol{padding:0;list-style:none;}
a{color:var(--c-primary);text-decoration:none;transition:color .18s ease,opacity .18s ease;}
a:hover{color:var(--c-primary-d);text-decoration:underline;text-decoration-thickness:1px;text-underline-offset:3px;}
button{font-family:inherit;font-size:inherit;border:0;background:none;cursor:pointer;color:inherit;}
input{font-family:inherit;}
:focus-visible{outline:2px solid var(--c-primary);outline-offset:2px;}

.container{
  width:100%;
  max-width:var(--w-container);
  margin:0 auto;
  padding:0 24px;
}
.eyebrow{
  display:inline-flex;align-items:center;gap:6px;
  font-size:12px;letter-spacing:.04em;color:var(--c-primary);
  background:var(--c-soft);border-radius:var(--r-pill);
  padding:4px 12px;
}

/* ============ 导航 ============ */
.site-header{
  position:sticky;top:0;z-index:80;
  background:#fff;
  border-bottom:1px solid var(--c-line);
  box-shadow:0 1px 0 rgba(22,50,79,.04);
}
.header-inner{
  display:flex;align-items:center;gap:22px;
  height:72px;
}
.brand{
  display:inline-flex;align-items:center;gap:9px;
  color:var(--c-deep);flex:0 0 auto;
}
.brand:hover{text-decoration:none;color:var(--c-deep);}
.brand-mark{width:24px;height:24px;color:var(--c-primary);flex:0 0 auto;}
.brand-name{font-size:18px;font-weight:700;letter-spacing:-.01em;white-space:nowrap;}

.nav-links{display:flex;align-items:center;gap:26px;margin-right:auto;}
.nav-link{
  position:relative;display:inline-block;padding:6px 0;
  font-size:15px;color:var(--c-text-2);white-space:nowrap;
}
.nav-link:hover{color:var(--c-primary);text-decoration:none;}
.nav-link.is-active{color:var(--c-deep);font-weight:600;}
.nav-link.is-active::after{
  content:"";position:absolute;left:50%;bottom:-13px;
  width:20px;height:2px;border-radius:2px;background:var(--c-primary);
  transform:translateX(-50%);
}
.mobile-only{display:none;}

.nav-actions{display:flex;align-items:center;gap:14px;flex:0 0 auto;}
.search-box{
  position:relative;display:flex;align-items:center;
  width:238px;height:40px;
  background:var(--c-bg);
  border:1px solid transparent;border-radius:var(--r-btn);
  transition:border-color .18s ease,background .18s ease,box-shadow .18s ease;
}
.search-box:focus-within{
  background:#fff;border-color:var(--c-primary);
  box-shadow:0 0 0 3px rgba(43,95,168,.15);
}
.search-icon{
  position:absolute;left:12px;font-size:13px;color:var(--c-text-3);pointer-events:none;
}
.search-box input[type="search"]{
  width:100%;height:100%;
  padding:0 12px 0 34px;
  border:0;background:transparent;border-radius:var(--r-btn);
  font-size:13px;color:var(--c-text);margin:0;
}
.search-box input::placeholder{color:var(--c-text-3);}
.search-box input:focus{outline:none;box-shadow:none;}
.login-link{font-size:15px;color:var(--c-text-2);}
.login-link:hover{color:var(--c-primary);text-decoration:none;}
.nav-toggle{
  display:none;align-items:center;justify-content:center;
  width:40px;height:40px;border-radius:var(--r-btn);
  border:1px solid var(--c-line-2);color:var(--c-deep);background:#fff;
  font-size:16px;transition:background .18s ease,border-color .18s ease;
}
.nav-toggle:hover{background:var(--c-soft);border-color:var(--c-primary);}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:44px;padding:0 22px;
  border-radius:var(--r-btn);
  font-size:15px;font-weight:600;line-height:1;
  border:1px solid transparent;
  transition:background .18s ease,color .18s ease,border-color .18s ease,transform .18s ease,box-shadow .18s ease;
  text-decoration:none;
}
.btn:hover{text-decoration:none;}
.btn-primary{background:var(--c-primary);color:#fff;}
.btn-primary:hover{background:var(--c-deep);color:#fff;transform:translateY(-2px);box-shadow:var(--sh-btn);}
.btn-primary:active{transform:translateY(-1px);box-shadow:none;}
.btn-primary:disabled,
.btn-primary[disabled]{background:var(--c-line-2);color:var(--c-text-3);cursor:not-allowed;transform:none;box-shadow:none;}
.btn-secondary{
  background:#fff;color:var(--c-deep);border-color:var(--c-line-2);
}
.btn-secondary:hover{background:var(--c-soft);border-color:var(--c-primary);color:var(--c-deep);transform:translateY(-2px);}
.btn-secondary:active{transform:translateY(-1px);}
.btn-ghost{
  background:transparent;color:var(--c-deep);border-color:rgba(22,50,79,.18);
}
.btn-ghost:hover{background:rgba(255,255,255,.16);color:var(--c-deep);}
.btn-sm{height:38px;padding:0 18px;font-size:14px;}
.btn-light{background:#fff;color:var(--c-deep);}
.btn-light:hover{background:var(--c-soft);color:var(--c-deep);transform:translateY(-2px);}
.btn-outline-light{background:transparent;color:#fff;border-color:rgba(255,255,255,.55);}
.btn-outline-light:hover{background:rgba(255,255,255,.14);color:#fff;border-color:#fff;}
.btn-text{
  display:inline-flex;align-items:center;gap:6px;
  height:auto;padding:0;background:none;border:0;
  font-size:15px;font-weight:600;color:var(--c-primary);
}
.btn-text i{transition:transform .18s ease;}
.btn-text:hover{color:var(--c-primary-d);text-decoration:underline;text-underline-offset:4px;}
.btn-text:hover i{transform:translateX(3px);}

/* ============ 页头 ============ */
.page-hero{padding:32px 0 0;}
.hero-card{
  position:relative;
  border-radius:var(--r-hero);
  padding:40px 44px 62px;
  color:#fff;
  overflow:hidden;
  background-image:
    linear-gradient(94deg,rgba(22,50,79,.9) 0%,rgba(22,50,79,.72) 46%,rgba(22,50,79,.22) 100%),
    url('/assets/images/backpic/back-2.webp');
  background-size:cover;
  background-position:center;
  box-shadow:0 14px 34px rgba(22,50,79,.14);
}
.hero-card::after{
  content:"";position:absolute;right:52px;top:46px;
  width:8px;height:8px;border-radius:50%;background:var(--c-accent);
  box-shadow:34px 26px 0 -2px rgba(233,161,59,.75),-28px 60px 0 -3px rgba(233,161,59,.55);
  opacity:.9;
}
.breadcrumb{
  position:relative;z-index:1;
  display:flex;align-items:center;flex-wrap:wrap;gap:8px;
  font-size:13px;color:rgba(255,255,255,.72);
  margin-bottom:22px;
}
.breadcrumb a{color:rgba(255,255,255,.82);}
.breadcrumb a:hover{color:#fff;text-decoration:none;}
.breadcrumb .sep{color:rgba(255,255,255,.45);}
.breadcrumb .current{color:#fff;font-weight:600;}
.hero-badge{
  position:relative;z-index:1;
  display:inline-flex;align-items:center;gap:7px;
  padding:5px 14px;border-radius:var(--r-pill);
  border:1px solid rgba(255,255,255,.42);
  font-size:12px;letter-spacing:.06em;color:#fff;
  background:rgba(255,255,255,.08);
  margin-bottom:18px;
}
.hero-badge .dot{width:6px;height:6px;border-radius:50%;background:var(--c-accent);}
.hero-card h1{
  position:relative;z-index:1;
  font-size:clamp(30px,4vw,44px);
  line-height:1.25;font-weight:700;letter-spacing:-.01em;
  color:#fff;max-width:720px;margin-bottom:16px;
}
.hero-sub{
  position:relative;z-index:1;
  font-size:16px;line-height:1.8;color:#D8E3F1;
  max-width:600px;margin-bottom:28px;
}
.hero-actions{position:relative;z-index:1;display:flex;flex-wrap:wrap;gap:12px;margin-bottom:26px;}
.hero-metrics{
  position:relative;z-index:1;
  display:flex;flex-wrap:wrap;align-items:center;gap:10px 22px;
  font-size:13px;color:rgba(216,227,241,.92);
}
.hero-metrics span{display:inline-flex;align-items:center;gap:7px;}
.hero-metrics i{color:var(--c-accent);font-size:12px;}

/* ============ 统计条 ============ */
.stat-band{margin-top:-34px;position:relative;z-index:5;padding-bottom:8px;}
.stat-strip{
  display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:16px;
}
.stat-card{
  background:var(--c-card);
  border:1px solid var(--c-line);
  border-radius:var(--r-card);
  padding:18px 20px;
  box-shadow:var(--sh-card);
  transition:box-shadow .2s ease,transform .2s ease;
}
.stat-card:hover{box-shadow:var(--sh-hover);transform:translateY(-2px);}
.stat-num{
  font-size:26px;font-weight:700;line-height:1.3;color:var(--c-deep);
  font-variant-numeric:tabular-nums;
}
.stat-num small{font-size:13px;font-weight:600;color:var(--c-text-2);margin-left:4px;}
.stat-label{font-size:13px;color:var(--c-text-2);}

/* ============ 通用板块 ============ */
.section{padding:var(--sp-section) 0 0;}
.section-head{
  display:flex;align-items:flex-end;justify-content:space-between;gap:20px;
  margin-bottom:26px;
}
.section-head h2{
  font-size:clamp(24px,2.6vw,32px);
  line-height:1.35;font-weight:700;color:var(--c-deep);
  margin-bottom:8px;
}
.section-desc{font-size:15px;color:var(--c-text-2);max-width:640px;}

/* ============ 榜单布局 ============ */
.rank-layout{padding:64px 0 0;}
.rank-grid{display:flex;gap:28px;align-items:flex-start;}
.rank-side{flex:0 0 258px;max-width:258px;}
.rank-main{flex:1 1 auto;min-width:0;}

.side-nav{
  position:sticky;top:96px;
  background:var(--c-card);
  border:1px solid var(--c-line);
  border-radius:var(--r-card);
  padding:18px 16px;
  box-shadow:var(--sh-card);
}
.side-nav h2{
  font-size:15px;font-weight:700;color:var(--c-deep);
  padding:0 10px;margin-bottom:12px;
}
.side-list{display:flex;flex-direction:column;gap:4px;}
.side-item{
  position:relative;display:flex;align-items:center;justify-content:space-between;gap:8px;
  padding:10px 12px;border-radius:var(--r-btn);
  font-size:14px;color:var(--c-text-2);
  transition:background .18s ease,color .18s ease;
}
.side-item:hover{background:var(--c-bg);color:var(--c-primary);text-decoration:none;}
.side-item .count{
  font-size:12px;color:var(--c-text-3);font-variant-numeric:tabular-nums;
}
.side-item.is-active{
  background:var(--c-soft);color:var(--c-primary);font-weight:600;
}
.side-item.is-active::before{
  content:"";position:absolute;left:0;top:8px;bottom:8px;
  width:3px;border-radius:3px;background:var(--c-primary);
}
.side-note{
  margin-top:14px;padding:12px 12px 0;
  border-top:1px solid var(--c-line);
  font-size:12.5px;line-height:1.7;color:var(--c-text-3);
}

/* ============ 行式榜单 ============ */
.rank-panel{
  background:var(--c-card);
  border:1px solid var(--c-line);
  border-radius:var(--r-card);
  box-shadow:var(--sh-card);
  padding:24px 26px 12px;
}
.panel-head{
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding-bottom:16px;border-bottom:1px solid var(--c-line);
  margin-bottom:6px;
}
.panel-head h2{
  font-size:22px;font-weight:700;color:var(--c-deep);line-height:1.4;
}
.panel-head .panel-meta{font-size:13px;color:var(--c-text-3);}

.rank-row{
  display:flex;gap:18px;align-items:flex-start;
  padding:18px 0;
  border-bottom:1px solid var(--c-line);
  transition:background .18s ease;
}
.rank-row:last-of-type{border-bottom:0;}
.rank-row:hover{background:var(--c-bg);}
.rank-no{
  flex:0 0 40px;
  font-size:22px;font-weight:700;line-height:1.4;
  color:var(--c-text-3);font-variant-numeric:tabular-nums;
  padding-top:22px;
}
.rank-no.top{color:var(--c-accent);}
.rank-thumb{
  flex:0 0 200px;max-width:200px;border-radius:var(--r-img);overflow:hidden;
  background:var(--c-soft);
  transition:box-shadow .2s ease,transform .2s ease;
}
.rank-thumb img{
  width:100%;aspect-ratio:16/9;object-fit:cover;
  transition:transform .35s ease,filter .35s ease;
}
.rank-row:hover .rank-thumb{box-shadow:var(--sh-hover);}
.rank-row:hover .rank-thumb img{transform:scale(1.03);filter:brightness(1.04);}
.rank-body{flex:1 1 auto;min-width:0;}
.rank-body h3{
  font-size:18px;font-weight:600;line-height:1.5;color:var(--c-text);
  margin-bottom:6px;
  transition:color .18s ease;
}
.rank-body h3 a{color:inherit;}
.rank-row:hover .rank-body h3{color:var(--c-primary);}
.rank-summary{
  font-size:14px;line-height:1.75;color:var(--c-text-2);
  margin-bottom:10px;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.rank-meta{
  display:flex;flex-wrap:wrap;align-items:center;gap:8px;
  font-size:12.5px;color:var(--c-text-3);
}
.tag{
  display:inline-flex;align-items:center;
  padding:2px 10px;border-radius:var(--r-pill);
  background:var(--c-soft);color:var(--c-primary);
  font-size:12px;line-height:1.7;
}
.tag-plain{background:var(--c-bg);color:var(--c-text-2);}
.meta-split{color:var(--c-line-2);}

.load-more{display:flex;justify-content:center;padding:22px 0 26px;}

/* ============ 更新节奏 ============ */
.steps{
  display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:20px;
}
.step-card{
  background:var(--c-card);
  border:1px solid var(--c-line);
  border-radius:var(--r-card);
  padding:24px 24px 26px;
  box-shadow:var(--sh-card);
  transition:box-shadow .2s ease,transform .2s ease;
}
.step-card:hover{box-shadow:var(--sh-hover);transform:translateY(-3px);}
.step-index{
  display:inline-flex;align-items:center;justify-content:center;
  width:34px;height:34px;border-radius:10px;
  background:var(--c-soft);color:var(--c-primary);
  font-size:14px;font-weight:700;
  font-variant-numeric:tabular-nums;
  margin-bottom:14px;
}
.step-card h3{font-size:18px;font-weight:600;color:var(--c-text);margin-bottom:8px;}
.step-card p{font-size:14px;line-height:1.8;color:var(--c-text-2);}

/* ============ 联动入口 ============ */
.link-cards{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:20px;}
.link-card{
  display:flex;gap:18px;align-items:center;
  background:var(--c-card);
  border:1px solid var(--c-line);
  border-radius:var(--r-card);
  padding:18px;
  box-shadow:var(--sh-card);
  transition:box-shadow .2s ease,transform .2s ease,border-color .2s ease;
}
.link-card:hover{
  text-decoration:none;
  box-shadow:var(--sh-hover);transform:translateY(-3px);border-color:var(--c-line-2);
}
.link-card img{
  width:132px;flex:0 0 132px;aspect-ratio:16/10;object-fit:cover;
  border-radius:var(--r-img);
}
.link-card h3{font-size:18px;font-weight:600;color:var(--c-text);margin-bottom:6px;}
.link-card:hover h3{color:var(--c-primary);}
.link-card p{font-size:14px;line-height:1.75;color:var(--c-text-2);margin-bottom:8px;}
.link-card .link-more{font-size:14px;font-weight:600;color:var(--c-primary);display:inline-flex;align-items:center;gap:6px;}
.link-card:hover .link-more i{transform:translateX(3px);}
.link-card .link-more i{transition:transform .18s ease;}

/* ============ FAQ ============ */
.faq-wrap{max-width:860px;margin:0 auto;}
.faq-list{border-top:1px solid var(--c-line);}
.faq-item{border-bottom:1px solid var(--c-line);}
.faq-q{
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  width:100%;padding:20px 0;text-align:left;
  font-size:16px;font-weight:600;color:var(--c-text);
  transition:color .18s ease;
}
.faq-q:hover{color:var(--c-primary);}
.faq-ic{
  flex:0 0 auto;color:var(--c-primary);font-size:14px;
  transition:transform .22s ease;
}
.faq-item.is-open .faq-ic{transform:rotate(45deg);}
.faq-a{display:none;padding:0 0 20px;}
.faq-item.is-open .faq-a{display:block;}
.faq-a p{font-size:15px;line-height:1.8;color:var(--c-text-2);max-width:760px;}

/* ============ CTA ============ */
.cta-card{
  position:relative;overflow:hidden;
  background:var(--c-deep);
  border-radius:var(--r-hero);
  padding:44px 46px;
  display:flex;align-items:center;justify-content:space-between;gap:32px;
  color:#fff;
  box-shadow:0 16px 36px rgba(22,50,79,.18);
}
.cta-card::before{
  content:"";position:absolute;inset:0;
  background-image:radial-gradient(rgba(255,255,255,.12) 1px,transparent 1px);
  background-size:22px 22px;opacity:.5;pointer-events:none;
}
.cta-text{position:relative;z-index:1;max-width:620px;}
.cta-text h2{font-size:clamp(22px,2.4vw,30px);font-weight:700;line-height:1.35;color:#fff;margin-bottom:10px;}
.cta-text p{font-size:15px;line-height:1.8;color:#B9C7D9;}
.cta-actions{position:relative;z-index:1;display:flex;flex-wrap:wrap;gap:12px;flex:0 0 auto;}

/* ============ 页脚 ============ */
.site-footer{
  margin-top:var(--sp-section);
  background:#F0F4FA;
  border-top:1px solid var(--c-line);
  padding:56px 0 26px;
}
.footer-top{
  display:grid;grid-template-columns:1.5fr 1fr 1fr 1.4fr;gap:36px;
  padding-bottom:38px;
  border-bottom:1px solid var(--c-line);
}
.footer-brand{display:inline-flex;align-items:center;gap:9px;color:var(--c-deep);margin-bottom:14px;}
.footer-brand:hover{text-decoration:none;color:var(--c-deep);}
.footer-desc{font-size:14px;line-height:1.8;color:var(--c-text-2);max-width:300px;}
.social-row{display:flex;gap:10px;margin-top:16px;}
.social-row a{
  display:inline-flex;align-items:center;justify-content:center;
  width:36px;height:36px;border-radius:50%;
  background:#fff;border:1px solid var(--c-line);
  color:var(--c-text-2);font-size:14px;
  transition:color .18s ease,border-color .18s ease,transform .18s ease;
}
.social-row a:hover{color:var(--c-primary);border-color:var(--c-primary);transform:translateY(-2px);text-decoration:none;}
.footer-title{font-size:14px;font-weight:600;color:var(--c-deep);margin-bottom:14px;}
.footer-list li{margin-bottom:10px;}
.footer-list a{font-size:14px;color:var(--c-text-2);}
.footer-list a:hover{color:var(--c-primary);}
.footer-form{display:flex;gap:8px;margin-top:12px;}
.footer-form input[type="email"]{
  flex:1 1 auto;min-width:0;height:44px;
  padding:0 14px;margin:0;
  border:1px solid var(--c-line-2);border-radius:var(--r-btn);
  background:#fff;font-size:14px;color:var(--c-text);
  transition:border-color .18s ease,box-shadow .18s ease;
}
.footer-form input::placeholder{color:var(--c-text-3);}
.footer-form input[type="email"]:focus{
  outline:none;border-color:var(--c-primary);
  box-shadow:0 0 0 3px rgba(43,95,168,.15);
}
.footer-form .btn{height:44px;padding:0 18px;font-size:14px;}
.footer-note{font-size:12.5px;color:var(--c-text-3);margin-top:10px;}
.footer-bottom{
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  padding-top:22px;font-size:13px;color:var(--c-text-3);
}
.footer-bottom p{margin:0;}

/* ============ 响应式 ============ */
@media (max-width:1023px){
  :root{--sp-section:72px;}
  .header-inner{gap:16px;}
  .nav-links{
    position:fixed;left:0;right:0;top:72px;bottom:0;
    display:none;flex-direction:column;align-items:stretch;gap:6px;
    padding:22px 24px 40px;
    background:#fff;border-top:1px solid var(--c-line);
    overflow-y:auto;margin-right:0;
  }
  .nav-links.is-open{display:flex;}
  .nav-link{padding:12px 4px;font-size:16px;border-bottom:1px solid var(--c-line);}
  .nav-link.is-active::after{display:none;}
  .nav-link.is-active{color:var(--c-primary);}
  .mobile-only{display:flex;flex-direction:column;gap:12px;margin-top:18px;}
  .mobile-only .search-box{width:100%;height:46px;background:var(--c-bg);border:1px solid var(--c-line);}
  .mobile-only .btn{width:100%;}
  .nav-actions .search-box,
  .nav-actions .login-link,
  .nav-actions .btn-primary{display:none;}
  .nav-toggle{display:inline-flex;}
  .search-box{width:190px;}

  .hero-card{padding:34px 30px 56px;}
  .stat-strip{grid-template-columns:repeat(2,minmax(0,1fr));}
  .rank-grid{flex-direction:column;gap:22px;}
  .rank-side{flex:1 1 auto;max-width:none;width:100%;}
  .side-nav{position:static;padding:16px;border-radius:var(--r-card);}
  .side-nav h2{padding:0 2px;margin-bottom:10px;}
  .side-list{
    flex-direction:row;gap:8px;overflow-x:auto;
    padding-bottom:6px;-webkit-overflow-scrolling:touch;
    scrollbar-width:none;
  }
  .side-list::-webkit-scrollbar{display:none;}
  .side-item{flex:0 0 auto;padding:8px 14px;border:1px solid var(--c-line);border-radius:var(--r-pill);}
  .side-item.is-active::before{display:none;}
  .side-item .count{display:none;}
  .side-note{display:none;}

  .steps{grid-template-columns:1fr;}
  .link-cards{grid-template-columns:1fr;}
  .cta-card{flex-direction:column;align-items:flex-start;padding:36px 30px;}
  .cta-actions{width:100%;}
  .footer-top{grid-template-columns:1fr 1fr;gap:28px;}
  .footer-desc{max-width:none;}
  .rank-thumb{flex:0 0 168px;max-width:168px;}
}

@media (max-width:640px){
  :root{--sp-section:56px;}
  .container{padding:0 16px;}
  .brand-name{font-size:16px;}
  .hero-card{padding:26px 20px 50px;border-radius:16px;}
  .hero-card h1{font-size:28px;}
  .hero-sub{font-size:15px;}
  .hero-actions{width:100%;}
  .hero-actions .btn{flex:1 1 100%;}
  .hero-metrics{gap:8px 14px;font-size:12.5px;}
  .stat-strip{grid-template-columns:1fr 1fr;gap:12px;}
  .stat-num{font-size:22px;}
  .section-head{flex-direction:column;align-items:flex-start;gap:10px;}
  .rank-panel{padding:18px 16px 8px;}
  .panel-head{flex-direction:column;align-items:flex-start;gap:6px;}
  .rank-row{gap:12px;padding:16px 0;flex-wrap:wrap;}
  .rank-no{flex:0 0 28px;font-size:18px;padding-top:2px;}
  .rank-thumb{flex:0 0 100%;max-width:100%;}
  .rank-body h3{font-size:17px;}
  .rank-summary{-webkit-line-clamp:3;font-size:13.5px;}
  .link-card{flex-direction:column;align-items:flex-start;}
  .link-card img{width:100%;flex:0 0 auto;}
  .cta-card{padding:28px 20px;border-radius:16px;}
  .cta-actions .btn{width:100%;}
  .footer-top{grid-template-columns:1fr;gap:26px;padding-bottom:26px;}
  .footer-bottom{flex-direction:column;align-items:flex-start;gap:8px;}
  .faq-q{font-size:15px;padding:16px 0;}
  .footer-form{flex-direction:column;}
  .footer-form .btn{width:100%;}
}