/* roulang page: index */
:root{
  --brand:#1D4E89;
  --brand-dark:#143A66;
  --brand-light:#E8F0FA;
  --brand-mist:#F3F7FC;
  --accent:#F2792F;
  --accent-light:#FDF0E6;
  --cool:#12868C;
  --cool-light:#E4F3F3;
  --bg:#F7F9FC;
  --surface:#FFFFFF;
  --band:#EDF2F9;
  --line:#E2E9F3;
  --border:#D6E0EE;
  --text:#1B2A3F;
  --text-2:#5A6B80;
  --text-3:#8A98AB;
  --white:#FFFFFF;
  --radius-sm:10px;
  --radius:16px;
  --radius-lg:20px;
  --radius-pill:999px;
  --shadow-sm:0 2px 8px rgba(20,58,102,.06);
  --shadow-md:0 12px 28px rgba(20,58,102,.12);
  --space-1:8px;
  --space-2:16px;
  --space-3:24px;
  --space-4:32px;
  --space-5:48px;
  --space-6:64px;
  --space-7:96px;
  --font-cn:"PingFang SC","Microsoft YaHei","Source Han Sans SC","Noto Sans SC",system-ui,-apple-system,"Segoe UI",sans-serif;
  --font-num:"Inter",-apple-system,"Helvetica Neue",Arial,sans-serif;
}

*,*::before,*::after{box-sizing:border-box;}

html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}

body{
  margin:0;
  padding:0;
  font-family:var(--font-cn);
  font-size:16px;
  line-height:1.85;
  color:var(--text);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
  -moz-osx-font-smoothing:grayscale;
  overflow-x:hidden;
}

h1,h2,h3,h4,h5,h6,p,ul,ol,figure,blockquote{margin:0;padding:0;}
ul,ol{list-style:none;}
img{max-width:100%;display:block;border:0;}
a{color:var(--brand);text-decoration:none;transition:color .18s ease;}
a:hover{color:var(--brand-dark);}
button{font-family:inherit;font-size:inherit;border:0;background:none;cursor:pointer;color:inherit;}
input,textarea,select{font-family:inherit;font-size:inherit;}
table{border-collapse:collapse;width:100%;}

:focus-visible{
  outline:3px solid rgba(29,78,137,.35);
  outline-offset:2px;
  border-radius:6px;
}

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

.section{padding:88px 0;}
.section--tight{padding:64px 0;}
.section--band{background:var(--band);}
.section--mist{background:var(--brand-mist);}

.section-head{
  display:flex;
  align-items:flex-end;
  justify-content:space-between;
  gap:24px;
  margin-bottom:40px;
}

.section-head h2{
  font-size:28px;
  line-height:1.35;
  font-weight:700;
  color:var(--text);
  letter-spacing:0;
}

.section-head .section-sub{
  margin-top:10px;
  font-size:14px;
  line-height:1.75;
  color:var(--text-2);
  max-width:620px;
}

.link-more{
  display:inline-flex;
  align-items:center;
  gap:8px;
  font-size:14px;
  font-weight:600;
  color:var(--brand);
  white-space:nowrap;
  transition:color .18s ease;
}

.link-more i{transition:transform .18s ease;font-size:12px;}

.link-more:hover{color:var(--brand-dark);}
.link-more:hover i{transform:translateX(4px);}

/* ============ 头部导航 ============ */
.site-header{
  position:relative;
  z-index:60;
  background:var(--surface);
}

.brand-row{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:24px;
  height:64px;
  border-bottom:1px solid var(--line);
}

.logo{
  display:inline-flex;
  align-items:center;
  gap:10px;
  font-size:18px;
  font-weight:700;
  color:var(--text);
  letter-spacing:.2px;
}

.logo:hover{color:var(--brand);}

.logo-mark{
  width:34px;
  height:34px;
  border-radius:10px;
  background:linear-gradient(135deg,var(--brand),var(--brand-dark));
  color:#fff;
  display:grid;
  place-items:center;
  font-size:15px;
  font-weight:700;
  font-family:var(--font-num);
  flex:0 0 auto;
}

.logo-text{white-space:nowrap;}

.brand-tools{
  display:flex;
  align-items:center;
  gap:8px;
}

.tool-link{
  display:inline-flex;
  align-items:center;
  gap:7px;
  padding:8px 14px;
  border-radius:var(--radius-pill);
  font-size:14px;
  color:var(--text-2);
  transition:background .18s ease,color .18s ease;
}

.tool-link:hover{background:var(--brand-light);color:var(--brand);}
.tool-link i{font-size:13px;}

.channel-bar{
  background:var(--band);
  border-bottom:1px solid var(--line);
  position:sticky;
  top:0;
  z-index:55;
}

.channel-inner{
  display:flex;
  align-items:stretch;
  height:52px;
  gap:4px;
  overflow-x:auto;
  scrollbar-width:none;
  -ms-overflow-style:none;
  -webkit-overflow-scrolling:touch;
}

.channel-inner::-webkit-scrollbar{display:none;}

.channel-link{
  position:relative;
  display:inline-flex;
  align-items:center;
  padding:0 16px;
  font-size:15px;
  font-weight:500;
  color:var(--text-2);
  white-space:nowrap;
  border-radius:8px;
  transition:background .18s ease,color .18s ease;
}

.channel-link:hover{background:rgba(29,78,137,.09);color:var(--brand);}

.channel-link.active{
  color:var(--brand);
  font-weight:700;
}

.channel-link.active::after{
  content:"";
  position:absolute;
  left:16px;
  right:16px;
  bottom:0;
  height:2px;
  border-radius:2px;
  background:var(--accent);
}

.channel-fade{
  position:relative;
}

.channel-fade::after{
  content:"";
  position:absolute;
  top:0;
  right:0;
  width:56px;
  height:100%;
  pointer-events:none;
  background:linear-gradient(90deg,rgba(237,242,249,0),rgba(237,242,249,.95));
}

/* ============ Hero ============ */
.hero{
  position:relative;
  padding:64px 0 88px;
  overflow:hidden;
  background:var(--bg);
}

.hero::before{
  content:"";
  position:absolute;
  inset:0;
  background:var(--brand-light);
  opacity:.72;
  clip-path:polygon(0 0,64% 0,42% 100%,0 100%);
  z-index:0;
}

.hero-grid{
  position:relative;
  z-index:1;
  display:grid;
  grid-template-columns:7fr 5fr;
  gap:48px;
  align-items:center;
}

.hero-copy{max-width:560px;}

.hero-eyebrow{
  display:inline-flex;
  align-items:center;
  gap:8px;
  padding:5px 14px;
  border-radius:var(--radius-pill);
  background:var(--accent-light);
  color:#B4531A;
  font-size:13px;
  font-weight:600;
  margin-bottom:20px;
}

.hero-eyebrow i{font-size:12px;}

.hero h1{
  font-size:42px;
  line-height:1.25;
  font-weight:700;
  letter-spacing:0;
  color:var(--text);
  margin-bottom:16px;
}

.hero-lead{
  font-size:16px;
  line-height:1.85;
  color:var(--text-2);
  margin-bottom:32px;
  max-width:520px;
}

.hero-actions{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:14px;
  margin-bottom:32px;
}

.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  min-height:44px;
  padding:12px 28px;
  border-radius:var(--radius-sm);
  font-size:15px;
  font-weight:600;
  line-height:1.4;
  transition:transform .18s ease,background .18s ease,box-shadow .18s ease,color .18s ease,border-color .18s ease;
}

.btn-primary{
  background:var(--brand);
  color:#fff;
  box-shadow:var(--shadow-sm);
}

.btn-primary:hover{
  background:var(--brand-dark);
  color:#fff;
  transform:translateY(-1px);
  box-shadow:0 10px 22px rgba(20,58,102,.18);
}

.btn-primary:active{transform:translateY(0);box-shadow:var(--shadow-sm);}

.btn-ghost{
  background:transparent;
  color:var(--brand);
  border:1.5px solid var(--brand);
  padding:10px 26px;
}

.btn-ghost:hover{
  background:var(--brand-light);
  color:var(--brand-dark);
  transform:translateY(-1px);
}

.btn-ghost:active{transform:translateY(0);}

.hero-trust{
  display:flex;
  flex-wrap:wrap;
  gap:24px;
}

.trust-item{
  display:inline-flex;
  align-items:center;
  gap:8px;
  font-size:13px;
  color:var(--text-2);
}

.trust-item i{
  width:26px;
  height:26px;
  border-radius:8px;
  background:var(--surface);
  color:var(--brand);
  display:grid;
  place-items:center;
  font-size:12px;
  box-shadow:var(--shadow-sm);
}

.hero-figure{
  position:relative;
  border-radius:var(--radius-lg);
}

.hero-figure img{
  width:100%;
  aspect-ratio:16/10;
  object-fit:cover;
  border-radius:var(--radius-lg);
  box-shadow:var(--shadow-md);
}

.float-card{
  position:absolute;
  right:20px;
  bottom:20px;
  background:var(--surface);
  border-radius:14px;
  padding:16px 20px;
  box-shadow:var(--shadow-md);
  border:1px solid var(--line);
  max-width:230px;
}

.float-num{
  display:block;
  font-family:var(--font-num);
  font-size:26px;
  line-height:1.2;
  font-weight:700;
  color:var(--brand);
}

.float-label{
  display:block;
  margin-top:4px;
  font-size:13px;
  line-height:1.5;
  color:var(--text-2);
}

/* ============ 频道快捷入口 ============ */
.quick-grid{
  display:grid;
  grid-template-columns:repeat(4,1fr);
  gap:24px;
}

.quick-card{
  display:flex;
  align-items:center;
  gap:14px;
  padding:20px;
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--radius);
  box-shadow:var(--shadow-sm);
  transition:transform .18s ease,box-shadow .18s ease,border-color .18s ease;
}

.quick-card:hover{
  transform:translateY(-2px);
  border-color:var(--brand);
  box-shadow:var(--shadow-md);
  color:inherit;
}

.quick-card:active{transform:translateY(0);}

.quick-icon{
  width:44px;
  height:44px;
  flex:0 0 auto;
  border-radius:12px;
  background:var(--brand-light);
  color:var(--brand);
  display:grid;
  place-items:center;
  font-size:17px;
  transition:background .18s ease,color .18s ease;
}

.quick-card:hover .quick-icon{background:var(--accent-light);color:var(--accent);}

.quick-name{
  font-size:15px;
  font-weight:600;
  color:var(--text);
  line-height:1.5;
}

.quick-desc{
  font-size:13px;
  color:var(--text-3);
  line-height:1.5;
}

/* ============ 主推网格 ============ */
.promo-grid{
  display:grid;
  grid-template-columns:1.55fr 1fr;
  gap:24px;
}

.promo-main{
  position:relative;
  display:block;
  border-radius:var(--radius);
  overflow:hidden;
  min-height:420px;
  box-shadow:var(--shadow-sm);
  transition:transform .18s ease,box-shadow .18s ease;
}

.promo-main:hover{transform:translateY(-2px);box-shadow:var(--shadow-md);}

.promo-main img{
  width:100%;
  height:100%;
  min-height:420px;
  object-fit:cover;
  transition:transform .4s ease;
}

.promo-main:hover img{transform:scale(1.03);}

.promo-main-body{
  position:absolute;
  left:0;
  right:0;
  bottom:0;
  padding:32px 28px 26px;
  background:linear-gradient(180deg,rgba(20,58,102,0),rgba(20,58,102,.86));
  color:#fff;
}

.promo-main-body .badge{background:rgba(255,255,255,.18);color:#fff;border-color:transparent;}

.promo-main-body h3{
  margin-top:12px;
  font-size:22px;
  line-height:1.4;
  font-weight:700;
  color:#fff;
}

.promo-main-body p{
  margin-top:8px;
  font-size:14px;
  line-height:1.7;
  color:rgba(255,255,255,.86);
}

.promo-side{
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:24px;
}

.promo-card{
  display:flex;
  flex-direction:column;
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--radius);
  overflow:hidden;
  box-shadow:var(--shadow-sm);
  transition:transform .18s ease,box-shadow .18s ease;
}

.promo-card:hover{
  transform:translateY(-2px);
  box-shadow:var(--shadow-md);
  color:inherit;
}

.promo-card:active{transform:translateY(0);}

.promo-card .thumb{
  overflow:hidden;
  aspect-ratio:16/10;
}

.promo-card .thumb img{
  width:100%;
  height:100%;
  object-fit:cover;
  transition:transform .4s ease;
}

.promo-card:hover .thumb img{transform:scale(1.03);}

.promo-card-body{
  padding:16px;
  display:flex;
  flex-direction:column;
  gap:8px;
  flex:1;
}

.promo-card-body h4{
  font-size:16px;
  line-height:1.5;
  font-weight:600;
  color:var(--text);
  display:-webkit-box;
  -webkit-line-clamp:2;
  -webkit-box-orient:vertical;
  overflow:hidden;
}

.promo-card-body p{
  font-size:13px;
  line-height:1.7;
  color:var(--text-2);
  display:-webkit-box;
  -webkit-line-clamp:2;
  -webkit-box-orient:vertical;
  overflow:hidden;
}

.card-arrow{
  margin-top:auto;
  display:inline-flex;
  align-items:center;
  gap:6px;
  font-size:13px;
  font-weight:600;
  color:var(--brand);
}

.promo-card:hover .card-arrow{color:var(--brand-dark);}

/* ============ 徽章 / 标签 ============ */
.badge{
  display:inline-flex;
  align-items:center;
  gap:5px;
  padding:3px 10px;
  border-radius:var(--radius-pill);
  border:1px solid var(--line);
  background:var(--brand-light);
  color:var(--brand);
  font-size:12px;
  font-weight:600;
  line-height:1.6;
  white-space:nowrap;
}

.badge--accent{background:var(--accent-light);color:#B4531A;border-color:#F7DBC5;}
.badge--cool{background:var(--cool-light);color:var(--cool);border-color:#CAE7E8;}

/* ============ 最新动态 ============ */
.filter-tabs{
  display:flex;
  flex-wrap:wrap;
  gap:8px;
}

.filter-tab{
  padding:6px 14px;
  border-radius:var(--radius-pill);
  font-size:13px;
  color:var(--text-2);
  border:1px solid var(--line);
  background:var(--surface);
  transition:background .18s ease,color .18s ease,border-color .18s ease;
}

.filter-tab:hover{background:var(--brand-light);color:var(--brand);border-color:var(--border);}

.filter-tab.is-active{
  background:var(--brand);
  color:#fff;
  border-color:var(--brand);
  font-weight:600;
}

.news-grid{
  display:grid;
  grid-template-columns:repeat(3,1fr);
  gap:24px;
}

.news-card{
  display:flex;
  flex-direction:column;
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--radius);
  overflow:hidden;
  box-shadow:var(--shadow-sm);
  transition:transform .18s ease,box-shadow .18s ease;
}

.news-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-md);}

.news-card:first-child{
  grid-column:span 2;
  display:grid;
  grid-template-columns:1fr 1fr;
  align-items:stretch;
}

.news-thumb{
  display:block;
  overflow:hidden;
  aspect-ratio:16/10;
}

.news-card:first-child .news-thumb{aspect-ratio:auto;height:100%;}

.news-thumb img{
  width:100%;
  height:100%;
  object-fit:cover;
  transition:transform .4s ease;
}

.news-card:hover .news-thumb img{transform:scale(1.03);}

.news-body{
  padding:20px;
  display:flex;
  flex-direction:column;
  gap:10px;
  flex:1;
}

.news-body .badge{align-self:flex-start;}

.news-title{
  font-size:18px;
  line-height:1.5;
  font-weight:600;
  color:var(--text);
  display:-webkit-box;
  -webkit-line-clamp:2;
  -webkit-box-orient:vertical;
  overflow:hidden;
}

.news-title a{color:inherit;}
.news-title a:hover{color:var(--brand);}

.news-desc{
  font-size:14px;
  line-height:1.75;
  color:var(--text-2);
  display:-webkit-box;
  -webkit-line-clamp:2;
  -webkit-box-orient:vertical;
  overflow:hidden;
}

.news-meta{
  margin-top:auto;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:12px;
  padding-top:12px;
  border-top:1px solid var(--line);
}

.news-time{
  font-family:var(--font-num);
  font-size:13px;
  color:var(--text-3);
  font-variant-numeric:tabular-nums;
}

.news-arrow{
  width:30px;
  height:30px;
  border-radius:50%;
  border:1px solid var(--border);
  display:grid;
  place-items:center;
  color:var(--brand);
  font-size:12px;
  transition:background .18s ease,color .18s ease,border-color .18s ease;
}

.news-card:hover .news-arrow,
.promo-card:hover .news-arrow{
  background:var(--brand);
  border-color:var(--brand);
  color:#fff;
}

.empty-state{
  grid-column:1/-1;
  background:var(--surface);
  border:1px dashed var(--border);
  border-radius:var(--radius);
  padding:56px 24px;
  text-align:center;
}

.empty-state i{
  font-size:30px;
  color:var(--text-3);
  margin-bottom:14px;
  display:block;
}

.empty-state p{
  font-size:15px;
  color:var(--text-2);
  margin-bottom:18px;
}

.load-more-wrap{
  display:flex;
  justify-content:center;
  margin-top:40px;
}

/* ============ 评价轮播 ============ */
.review-shell{
  display:flex;
  align-items:center;
  gap:20px;
}

.review-track{
  display:flex;
  gap:24px;
  overflow-x:auto;
  scroll-snap-type:x mandatory;
  scrollbar-width:none;
  -ms-overflow-style:none;
  padding:4px 2px 12px;
  flex:1;
}

.review-track::-webkit-scrollbar{display:none;}

.review-card{
  flex:0 0 calc(33.333% - 16px);
  scroll-snap-align:start;
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--radius);
  padding:26px 24px;
  box-shadow:var(--shadow-sm);
  display:flex;
  flex-direction:column;
  gap:16px;
  transition:transform .18s ease,box-shadow .18s ease;
}

.review-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-md);}

.quote-icon{
  font-size:20px;
  color:rgba(29,78,137,.22);
  line-height:1;
}

.review-text{
  font-size:15px;
  line-height:1.8;
  color:var(--text-2);
  display:-webkit-box;
  -webkit-line-clamp:3;
  -webkit-box-orient:vertical;
  overflow:hidden;
}

.review-person{
  display:flex;
  align-items:center;
  gap:12px;
  margin-top:auto;
  padding-top:16px;
  border-top:1px solid var(--line);
}

.avatar{
  width:40px;
  height:40px;
  border-radius:50%;
  background:var(--brand-light);
  color:var(--brand);
  display:grid;
  place-items:center;
  font-size:14px;
  font-weight:700;
  flex:0 0 auto;
}

.person-name{
  font-size:14px;
  font-weight:600;
  color:var(--text);
  line-height:1.4;
}

.person-role{
  font-size:12px;
  color:var(--text-3);
  line-height:1.4;
}

.carousel-btn{
  width:44px;
  height:44px;
  border-radius:50%;
  border:1.5px solid var(--border);
  background:var(--surface);
  color:var(--brand);
  display:grid;
  place-items:center;
  font-size:14px;
  flex:0 0 auto;
  transition:background .18s ease,color .18s ease,border-color .18s ease,transform .18s ease;
}

.carousel-btn:hover{
  background:var(--brand);
  border-color:var(--brand);
  color:#fff;
  transform:translateY(-1px);
}

.carousel-btn:active{transform:translateY(0);}

/* ============ 保障条 ============ */
.assure-band{
  background:var(--brand-light);
  padding:56px 0;
}

.assure-grid{
  display:grid;
  grid-template-columns:repeat(4,1fr);
}

.assure-item{
  display:flex;
  align-items:flex-start;
  gap:14px;
  padding:0 24px;
  border-left:1px solid rgba(29,78,137,.14);
}

.assure-item:first-child{border-left:0;padding-left:0;}
.assure-item:last-child{padding-right:0;}

.assure-icon{
  width:40px;
  height:40px;
  flex:0 0 auto;
  border-radius:12px;
  background:var(--surface);
  color:var(--brand);
  display:grid;
  place-items:center;
  font-size:16px;
  box-shadow:var(--shadow-sm);
}

.assure-title{
  font-size:15px;
  font-weight:700;
  color:var(--text);
  line-height:1.5;
}

.assure-text{
  margin-top:4px;
  font-size:13px;
  line-height:1.7;
  color:var(--text-2);
}

/* ============ FAQ ============ */
.faq-list{
  display:grid;
  gap:14px;
  max-width:900px;
  margin:0 auto;
}

.faq-item{
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:12px;
  overflow:hidden;
  transition:border-color .2s ease,box-shadow .2s ease;
}

.faq-item.is-open{
  border-color:var(--brand);
  box-shadow:var(--shadow-sm);
}

.faq-question{
  width:100%;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  padding:20px 24px;
  text-align:left;
  font-size:16px;
  font-weight:600;
  color:var(--text);
  line-height:1.6;
  transition:color .18s ease;
}

.faq-question:hover{color:var(--brand);}

.faq-sign{
  width:28px;
  height:28px;
  border-radius:50%;
  border:1px solid var(--border);
  display:grid;
  place-items:center;
  font-size:14px;
  color:var(--brand);
  flex:0 0 auto;
  transition:background .18s ease,color .18s ease,border-color .18s ease,transform .2s ease;
}

.faq-item.is-open .faq-sign{
  background:var(--brand);
  border-color:var(--brand);
  color:#fff;
  transform:rotate(180deg);
}

.faq-answer{
  max-height:0;
  overflow:hidden;
  transition:max-height .24s ease;
}

.faq-item.is-open .faq-answer{max-height:420px;}

.faq-answer-inner{
  padding:0 24px 22px;
  font-size:15px;
  line-height:1.9;
  color:var(--text-2);
}

/* ============ 底部 CTA ============ */
.cta-band{
  position:relative;
  overflow:hidden;
  background:var(--surface);
  border-top:1px solid var(--line);
}

.cta-band::after{
  content:"";
  position:absolute;
  right:-60px;
  top:-40px;
  width:460px;
  height:460px;
  background-image:url('/assets/images/backpic/back-2.webp');
  background-size:cover;
  background-position:center;
  border-radius:50%;
  opacity:.10;
  pointer-events:none;
}

.cta-inner{
  position:relative;
  z-index:1;
  text-align:center;
  max-width:720px;
  margin:0 auto;
  padding:80px 0;
}

.cta-inner h2{
  font-size:28px;
  line-height:1.4;
  font-weight:700;
  color:var(--text);
  margin-bottom:14px;
}

.cta-inner p{
  font-size:15px;
  line-height:1.85;
  color:var(--text-2);
  margin-bottom:32px;
}

.cta-actions{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  justify-content:center;
  gap:18px;
}

/* ============ 页脚 ============ */
.site-footer{
  background:var(--band);
  border-top:1px solid var(--line);
  padding:64px 0 0;
}

.footer-grid{
  display:grid;
  grid-template-columns:1.6fr 1fr 1fr 1.2fr;
  gap:48px;
  padding-bottom:48px;
}

.footer-brand .logo{margin-bottom:16px;}

.footer-desc{
  font-size:14px;
  line-height:1.85;
  color:var(--text-2);
  max-width:340px;
}

.footer-col h3{
  font-size:15px;
  font-weight:700;
  color:var(--text);
  margin-bottom:18px;
  line-height:1.5;
}

.footer-links li{margin-bottom:10px;}

.footer-links a{
  font-size:14px;
  color:var(--text-2);
  transition:color .18s ease;
}

.footer-links a:hover{
  color:var(--brand);
  text-decoration:underline;
  text-underline-offset:4px;
}

.footer-contact li{
  display:flex;
  align-items:flex-start;
  gap:10px;
  font-size:14px;
  line-height:1.75;
  color:var(--text-2);
  margin-bottom:12px;
}

.footer-contact i{
  color:var(--brand);
  font-size:13px;
  margin-top:6px;
  flex:0 0 auto;
}

.footer-bottom{
  border-top:1px solid rgba(29,78,137,.13);
  padding:22px 0;
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  justify-content:space-between;
  gap:12px;
  font-size:13px;
  color:var(--text-3);
  line-height:1.7;
}

.footer-bottom span{display:inline-block;}

/* ============ 响应式 ============ */
@media screen and (max-width:1024px){
  .container{padding:0 20px;}
  .section{padding:64px 0;}
  .section--tight{padding:48px 0;}

  .hero{padding:48px 0 64px;}
  .hero::before{clip-path:polygon(0 0,100% 0,100% 46%,0 62%);opacity:.6;}
  .hero-grid{grid-template-columns:1fr;gap:40px;}
  .hero-copy{max-width:100%;}
  .hero h1{font-size:34px;}
  .hero-figure img{aspect-ratio:16/9;}

  .quick-grid{grid-template-columns:repeat(2,1fr);gap:16px;}

  .promo-grid{grid-template-columns:1fr;}
  .promo-main{min-height:340px;}
  .promo-main img{min-height:340px;}

  .news-grid{grid-template-columns:repeat(2,1fr);gap:16px;}
  .news-card:first-child{grid-column:span 2;grid-template-columns:1fr;}

  .review-card{flex:0 0 calc(50% - 12px);}

  .assure-grid{grid-template-columns:repeat(2,1fr);row-gap:28px;}
  .assure-item:nth-child(3){border-left:0;padding-left:0;}
  .assure-item:nth-child(2){padding-right:0;}

  .footer-grid{grid-template-columns:1fr 1fr;gap:36px;}
}

@media screen and (max-width:768px){
  .section{padding:56px 0;}
  .section-head{flex-direction:column;align-items:flex-start;gap:16px;margin-bottom:28px;}
  .section-head h2{font-size:22px;}
  .section-head .section-sub{font-size:13px;}

  .brand-row{height:58px;}
  .logo{font-size:16px;}
  .logo-mark{width:30px;height:30px;font-size:13px;border-radius:9px;}
  .tool-link span{display:none;}
  .tool-link{padding:8px 10px;}

  .channel-inner{height:48px;}
  .channel-link{padding:0 13px;font-size:14px;}

  .hero h1{font-size:27px;line-height:1.3;}
  .hero-lead{font-size:15px;}
  .hero-actions{gap:12px;}
  .btn{width:100%;padding:13px 20px;}
  .hero-actions .btn{width:100%;}
  .hero-trust{gap:16px;}
  .float-card{right:12px;bottom:12px;padding:12px 16px;max-width:190px;}
  .float-num{font-size:21px;}
  .float-label{font-size:12px;}

  .promo-side{grid-template-columns:1fr;gap:16px;}
  .promo-main,.promo-main img{min-height:280px;}
  .promo-main-body{padding:22px 18px 20px;}
  .promo-main-body h3{font-size:19px;}

  .news-grid{grid-template-columns:1fr;}
  .news-card:first-child{grid-column:span 1;}

  .review-shell{gap:10px;}
  .review-card{flex:0 0 86%;padding:22px 18px;}
  .carousel-btn{width:40px;height:40px;}

  .assure-band{padding:44px 0;}
  .assure-grid{grid-template-columns:1fr;row-gap:22px;}
  .assure-item{border-left:0;padding:0;}

  .faq-question{padding:16px 16px;font-size:15px;}
  .faq-answer-inner{padding:0 16px 18px;font-size:14px;}

  .cta-inner{padding:56px 0;}
  .cta-inner h2{font-size:22px;}
  .cta-actions .btn{width:100%;}

  .site-footer{padding:48px 0 0;}
  .footer-grid{grid-template-columns:1fr;gap:32px;padding-bottom:32px;}
  .footer-bottom{flex-direction:column;align-items:flex-start;gap:8px;font-size:12px;}
}

@media screen and (max-width:520px){
  .container{padding:0 16px;}
  .quick-grid{grid-template-columns:1fr;}
  .review-card{flex:0 0 92%;}
  .hero-eyebrow{font-size:12px;}
}

/* roulang page: article */
:root{
  --brand:#1D4E89;
  --brand-dark:#143A66;
  --brand-light:#E8F0FA;
  --brand-soft:#F3F7FC;
  --accent:#F2792F;
  --accent-soft:#FDF0E6;
  --teal:#12868C;
  --teal-soft:#E4F3F3;
  --bg:#F7F9FC;
  --surface:#FFFFFF;
  --band:#EDF2F9;
  --line:#E2E9F3;
  --stroke:#D6E0EE;
  --text:#1B2A3F;
  --text-2:#5A6B80;
  --text-3:#8A98AB;
  --radius-card:16px;
  --radius-wide:20px;
  --radius-btn:10px;
  --shadow-1:0 2px 8px rgba(20,58,102,.06);
  --shadow-2:0 12px 28px rgba(20,58,102,.12);
  --gutter:24px;
  --container:1200px;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:"PingFang SC","Microsoft YaHei","Source Han Sans SC","Noto Sans SC",system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:16px;
  line-height:1.85;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border:0;}
a{color:var(--brand);text-decoration:none;}
a:hover{color:var(--brand-dark);}
button{font-family:inherit;}
h1,h2,h3,h4,p,ul,ol,figure{margin:0;}
ul,ol{padding:0;list-style:none;}
:focus-visible{outline:3px solid rgba(29,78,137,.30);outline-offset:2px;border-radius:6px;}
.container{
  width:100%;
  max-width:var(--container);
  margin:0 auto;
  padding:0 24px;
}
/* ===== Header ===== */
.site-header{position:relative;z-index:40;}
.brand-row{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:24px;
  min-height:64px;
  padding:8px 0;
  background:var(--surface);
  border-bottom:1px solid var(--line);
}
.logo{display:inline-flex;align-items:center;gap:10px;color:var(--text);}
.logo-mark{
  width:36px;height:36px;flex:0 0 36px;
  display:inline-flex;align-items:center;justify-content:center;
  background:linear-gradient(135deg,var(--brand),var(--brand-dark));
  color:#fff;font-size:18px;font-weight:700;border-radius:11px;
  letter-spacing:0;
}
.logo-text{font-size:18px;font-weight:700;letter-spacing:.4px;}
.brand-tools{display:flex;align-items:center;gap:6px;}
.tool-link{
  display:inline-flex;align-items:center;gap:6px;
  padding:8px 12px;border-radius:8px;
  color:var(--text-2);font-size:14px;line-height:1.2;
  transition:background .18s ease,color .18s ease;
}
.tool-link i{font-size:14px;color:var(--brand);}
.tool-link:hover{background:var(--brand-light);color:var(--brand-dark);}
.channel-bar{
  position:sticky;top:0;z-index:39;
  background:var(--band);
  border-bottom:1px solid var(--line);
}
.channel-fade{position:relative;}
.channel-fade::after{
  content:"";position:absolute;top:0;right:0;width:36px;height:100%;
  background:linear-gradient(90deg,rgba(237,242,249,0),var(--band));
  pointer-events:none;
}
.channel-inner{
  display:flex;align-items:center;gap:6px;
  min-height:52px;overflow-x:auto;scrollbar-width:none;
}
.channel-inner::-webkit-scrollbar{display:none;}
.channel-link{
  position:relative;flex:0 0 auto;
  display:inline-flex;align-items:center;
  padding:9px 14px;border-radius:8px;
  font-size:15px;color:var(--text-2);white-space:nowrap;
  transition:background .18s ease,color .18s ease;
}
.channel-link:hover{background:#fff;color:var(--brand);}
.channel-link.active{color:var(--brand);font-weight:600;}
.channel-link.active::after{
  content:"";position:absolute;left:12px;right:12px;bottom:-1px;height:2px;
  background:var(--brand);border-radius:2px;
}
/* ===== Article hero ===== */
.article-hero{
  background:linear-gradient(180deg,var(--brand-soft),var(--bg));
  padding:36px 0 40px;
  border-bottom:1px solid var(--line);
}
.breadcrumb{
  display:flex;flex-wrap:wrap;align-items:center;gap:8px;
  font-size:13px;color:var(--text-3);margin-bottom:18px;
}
.breadcrumb a{color:var(--text-2);}
.breadcrumb a:hover{color:var(--brand);text-decoration:underline;text-underline-offset:4px;}
.breadcrumb .sep{color:var(--stroke);}
.breadcrumb .current{color:var(--text-2);}
.article-title{
  max-width:920px;
  font-size:38px;font-weight:700;line-height:1.35;
  letter-spacing:0;color:var(--text);
  display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden;
}
.article-meta{
  display:flex;flex-wrap:wrap;align-items:center;gap:14px;
  margin-top:20px;font-size:13px;color:var(--text-2);
}
.article-meta .meta-item{display:inline-flex;align-items:center;gap:6px;}
.article-meta .meta-item i{color:var(--brand);font-size:13px;}
.article-meta .divider{width:1px;height:14px;background:var(--stroke);display:inline-block;}
.badge{
  display:inline-flex;align-items:center;gap:6px;
  padding:4px 12px;border-radius:999px;
  background:var(--brand-light);color:var(--brand-dark);
  font-size:12px;font-weight:600;line-height:1.6;
}
.badge-accent{background:var(--accent-soft);color:#B65516;}
.badge-teal{background:var(--teal-soft);color:#0C6B70;}
.meta-btn{
  display:inline-flex;align-items:center;gap:6px;
  background:none;border:0;padding:4px 2px;
  color:var(--text-2);font-size:13px;cursor:pointer;
  transition:color .18s ease;
}
.meta-btn:hover{color:var(--brand);}
/* ===== Article layout ===== */
.article-section{padding:56px 0 72px;}
.article-layout{
  display:grid;
  grid-template-columns:minmax(0,1fr);
  gap:48px;
  align-items:start;
}
.article-main{min-width:0;max-width:760px;width:100%;}
.article-card{
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--radius-wide);
  padding:40px 44px;
  box-shadow:var(--shadow-1);
}
/* ===== Prose ===== */
.prose{font-size:16.5px;line-height:1.95;color:var(--text);}
.prose > *:first-child{margin-top:0;}
.prose > *:last-child{margin-bottom:0;}
.prose p{margin:0 0 20px;color:var(--text);}
.prose h2{
  position:relative;
  font-size:23px;font-weight:700;line-height:1.5;
  margin:40px 0 16px;padding-left:14px;color:var(--text);
}
.prose h2::before{
  content:"";position:absolute;left:0;top:6px;bottom:6px;width:3px;
  background:var(--brand);border-radius:2px;
}
.prose h3{
  font-size:19px;font-weight:600;line-height:1.6;
  margin:28px 0 12px;color:var(--text);
}
.prose h4{font-size:17px;font-weight:600;margin:22px 0 10px;color:var(--text);}
.prose ul,.prose ol{margin:0 0 20px;padding-left:0;}
.prose ul li{position:relative;padding-left:22px;margin-bottom:10px;}
.prose ul li::before{
  content:"";position:absolute;left:2px;top:.72em;
  width:7px;height:7px;border-radius:2px;background:var(--brand);opacity:.7;
}
.prose ol{counter-reset:prose-ol;}
.prose ol li{position:relative;padding-left:26px;margin-bottom:10px;counter-increment:prose-ol;}
.prose ol li::before{
  content:counter(prose-ol);position:absolute;left:0;top:.15em;
  width:18px;height:18px;border-radius:6px;
  background:var(--brand-light);color:var(--brand-dark);
  font-size:12px;font-weight:700;display:flex;align-items:center;justify-content:center;
}
.prose blockquote{
  margin:24px 0;padding:18px 22px;
  background:var(--brand-soft);
  border-left:4px solid var(--brand);
  border-radius:8px;color:var(--text-2);
}
.prose blockquote p:last-child{margin-bottom:0;}
.prose img{border-radius:12px;width:100%;height:auto;margin:24px 0 10px;}
.prose figcaption{font-size:13px;color:var(--text-3);text-align:center;margin-bottom:22px;}
.prose table{
  width:100%;border-collapse:collapse;margin:24px 0;font-size:15px;
  border-radius:8px;overflow:hidden;
}
.prose th{
  background:var(--brand-light);color:var(--brand-dark);
  text-align:left;font-weight:600;padding:12px 14px;
}
.prose td{padding:12px 14px;border-top:1px solid var(--line);color:var(--text-2);}
.prose code{
  background:var(--band);color:var(--brand-dark);
  padding:2px 6px;border-radius:6px;font-size:14px;
}
.prose pre{
  background:#0F2742;color:#E4ECF7;
  padding:18px 20px;border-radius:12px;overflow-x:auto;margin:22px 0;
}
.prose pre code{background:none;color:inherit;padding:0;}
.prose hr{border:0;border-top:1px solid var(--line);margin:32px 0;}
.prose a{color:var(--brand);text-decoration:underline;text-underline-offset:4px;}
.prose a:hover{color:var(--accent);}
/* ===== Article foot ===== */
.article-tags{
  display:flex;flex-wrap:wrap;gap:10px;
  margin-top:36px;padding-top:24px;border-top:1px solid var(--line);
}
.tag{
  display:inline-flex;align-items:center;
  padding:6px 14px;border-radius:999px;
  background:var(--brand-soft);border:1px solid var(--stroke);
  color:var(--text-2);font-size:13px;
  transition:all .18s ease;
}
.tag:hover{background:var(--brand-light);border-color:var(--brand);color:var(--brand-dark);}
.article-return{
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;
  gap:16px;margin-top:28px;
}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:46px;padding:13px 26px;
  border-radius:var(--radius-btn);border:1.5px solid transparent;
  font-size:15px;font-weight:600;line-height:1.2;cursor:pointer;
  transition:all .18s ease-out;
}
.btn-primary{background:var(--brand);color:#fff;box-shadow:var(--shadow-1);}
.btn-primary:hover{background:var(--brand-dark);color:#fff;transform:translateY(-1px);box-shadow:var(--shadow-2);}
.btn-primary:active{transform:translateY(0);}
.btn-ghost{background:transparent;border-color:var(--brand);color:var(--brand);}
.btn-ghost:hover{background:var(--brand-light);color:var(--brand-dark);transform:translateY(-1px);}
.btn-ghost:active{transform:translateY(0);}
.link-arrow{
  display:inline-flex;align-items:center;gap:6px;
  color:var(--brand);font-size:15px;font-weight:600;
}
.link-arrow i{transition:transform .18s ease-out;}
.link-arrow:hover i{transform:translateX(4px);}
.link-arrow:hover{text-decoration:underline;text-underline-offset:4px;}
/* ===== Aside ===== */
.article-aside{display:none;}
.aside-card{
  background:var(--surface);border:1px solid var(--line);
  border-radius:var(--radius-card);padding:22px;
  box-shadow:var(--shadow-1);margin-bottom:20px;
}
.aside-card h3{
  font-size:15px;font-weight:700;color:var(--text);
  margin-bottom:14px;padding-bottom:12px;border-bottom:1px solid var(--line);
}
.aside-list li{margin-bottom:10px;}
.aside-list a{
  display:flex;align-items:center;gap:8px;
  font-size:14px;color:var(--text-2);line-height:1.6;
  transition:color .18s ease,transform .18s ease;
}
.aside-list a i{font-size:12px;color:var(--stroke);transition:color .18s ease;}
.aside-list a:hover{color:var(--brand);transform:translateX(2px);}
.aside-list a:hover i{color:var(--brand);}
.aside-note{font-size:13px;color:var(--text-3);line-height:1.85;}
.aside-cta{
  background:linear-gradient(160deg,var(--brand),var(--brand-dark));
  border-radius:var(--radius-card);padding:24px;color:#fff;
  box-shadow:var(--shadow-1);
}
.aside-cta h3{font-size:16px;font-weight:700;margin-bottom:8px;color:#fff;}
.aside-cta p{font-size:13px;line-height:1.8;color:rgba(255,255,255,.82);margin-bottom:16px;}
.aside-cta .btn{width:100%;background:#fff;color:var(--brand-dark);min-height:42px;padding:11px 18px;font-size:14px;}
.aside-cta .btn:hover{background:var(--accent);color:#fff;}
/* ===== Related ===== */
.related-section{padding:0 0 72px;}
.section-head{
  display:flex;align-items:flex-end;justify-content:space-between;
  gap:20px;margin-bottom:28px;
}
.section-head h2{font-size:26px;font-weight:700;line-height:1.4;}
.section-head p{font-size:14px;color:var(--text-2);margin-top:6px;}
.card-grid{
  display:grid;grid-template-columns:repeat(3,minmax(0,1fr));
  gap:var(--gutter);
}
.post-card{
  display:flex;flex-direction:column;
  background:var(--surface);border:1px solid var(--line);
  border-radius:var(--radius-card);overflow:hidden;
  box-shadow:var(--shadow-1);
  transition:transform .18s ease-out,box-shadow .18s ease-out,border-color .18s ease-out;
}
.post-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-2);border-color:var(--stroke);}
.post-card:active{transform:translateY(0);}
.post-thumb{position:relative;aspect-ratio:16/10;overflow:hidden;background:var(--brand-light);}
.post-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .3s ease-out;}
.post-card:hover .post-thumb img{transform:scale(1.03);}
.post-body{padding:20px;display:flex;flex-direction:column;gap:10px;flex:1;}
.post-body h3{
  font-size:17px;font-weight:600;line-height:1.55;color:var(--text);
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.post-card:hover h3{color:var(--brand-dark);}
.post-body p{
  font-size:14px;line-height:1.75;color:var(--text-2);
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.post-meta{
  margin-top:auto;display:flex;align-items:center;justify-content:space-between;
  gap:12px;padding-top:8px;font-size:13px;color:var(--text-3);
  font-variant-numeric:tabular-nums;
}
.post-meta .go{color:var(--brand);}
/* ===== CTA ===== */
.cta-band{
  position:relative;overflow:hidden;
  background:var(--surface);border-top:1px solid var(--line);border-bottom:1px solid var(--line);
  padding:72px 0;
}
.cta-inner{position:relative;z-index:2;max-width:720px;margin:0 auto;text-align:center;}
.cta-inner h2{font-size:26px;font-weight:700;line-height:1.45;color:var(--text);}
.cta-inner p{margin:14px auto 26px;font-size:15px;line-height:1.9;color:var(--text-2);max-width:560px;}
.cta-actions{display:flex;flex-wrap:wrap;align-items:center;justify-content:center;gap:18px;}
.cta-deco{
  position:absolute;right:-40px;bottom:-60px;width:420px;max-width:50%;
  opacity:.10;pointer-events:none;border-radius:24px;
}
.cta-deco img{width:100%;height:auto;border-radius:24px;}
/* ===== Empty state ===== */
.empty-state{
  text-align:center;padding:64px 24px;
  background:var(--surface);border:1px dashed var(--stroke);
  border-radius:var(--radius-card);
}
.empty-state i{font-size:38px;color:var(--stroke);margin-bottom:16px;display:block;}
.empty-state h2{font-size:20px;font-weight:700;margin-bottom:10px;}
.empty-state p{font-size:14px;color:var(--text-2);margin-bottom:22px;}
/* ===== Footer ===== */
.site-footer{background:var(--band);border-top:1px solid var(--line);padding:64px 0 0;}
.footer-grid{
  display:grid;grid-template-columns:1.6fr 1fr 1fr 1.2fr;
  gap:40px;padding-bottom:48px;
}
.footer-brand .logo{margin-bottom:16px;}
.footer-desc{font-size:14px;line-height:1.9;color:var(--text-2);max-width:320px;}
.footer-col h3{
  font-size:15px;font-weight:700;color:var(--text);margin-bottom:16px;
}
.footer-links li{margin-bottom:10px;}
.footer-links a{font-size:14px;color:var(--text-2);transition:color .18s ease;}
.footer-links a:hover{color:var(--brand);text-decoration:underline;text-underline-offset:4px;}
.footer-contact li{
  display:flex;gap:10px;align-items:flex-start;
  font-size:14px;color:var(--text-2);margin-bottom:12px;line-height:1.75;
}
.footer-contact i{color:var(--brand);margin-top:5px;font-size:14px;}
.footer-bottom{
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;
  gap:12px;padding:20px 0 28px;border-top:1px solid var(--stroke);
  font-size:13px;color:var(--text-3);
}
/* ===== Responsive ===== */
@media (min-width:1025px){
  .article-layout{grid-template-columns:minmax(0,1fr) 300px;}
  .article-main{justify-self:start;}
  .article-aside{display:block;position:sticky;top:76px;}
}
@media (max-width:1024px){
  .container{padding:0 20px;}
  .article-title{font-size:32px;}
  .article-card{padding:32px 30px;}
  .card-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
  .brand-tools .tool-link span{display:none;}
  .brand-tools .tool-link{padding:10px;min-width:44px;justify-content:center;}
}
@media (max-width:768px){
  .article-hero{padding:26px 0 30px;}
  .article-title{font-size:27px;line-height:1.4;-webkit-line-clamp:4;}
  .article-meta{font-size:12px;gap:10px;}
  .article-section{padding:36px 0 52px;}
  .article-card{padding:24px 20px;border-radius:16px;}
  .prose{font-size:16px;line-height:1.9;}
  .prose h2{font-size:20px;margin:32px 0 14px;}
  .prose h3{font-size:18px;}
  .card-grid{grid-template-columns:1fr;}
  .section-head h2{font-size:22px;}
  .cta-band{padding:52px 0;}
  .cta-inner h2{font-size:22px;}
  .cta-deco{display:none;}
  .site-footer{padding-top:44px;}
}
@media (max-width:640px){
  .container{padding:0 16px;}
  .brand-row{min-height:58px;gap:12px;}
  .logo-text{font-size:16px;}
  .logo-mark{width:32px;height:32px;flex:0 0 32px;font-size:16px;border-radius:10px;}
  .channel-inner{min-height:48px;}
  .channel-link{font-size:14px;padding:8px 12px;}
  .article-card{padding:20px 16px;}
  .article-return{flex-direction:column;align-items:flex-start;}
  .btn{width:100%;min-height:48px;}
  .article-return .btn{width:auto;}
  .footer-grid{grid-template-columns:1fr;gap:28px;padding-bottom:32px;}
  .footer-bottom{flex-direction:column;align-items:flex-start;font-size:12px;}
  .cta-actions{flex-direction:column;align-items:stretch;}
  .cta-actions .btn{width:100%;}
}

/* roulang page: category1 */
:root{
  --brand:#1D4E89;
  --brand-deep:#143A66;
  --brand-light:#E8F0FA;
  --brand-mist:#F3F7FC;
  --accent:#F2792F;
  --accent-light:#FDF0E6;
  --cool:#12868C;
  --cool-light:#E4F3F3;
  --page-bg:#F7F9FC;
  --card:#FFFFFF;
  --band:#EDF2F9;
  --line:#E2E9F3;
  --stroke:#D6E0EE;
  --text:#1B2A3F;
  --text-2:#5A6B80;
  --text-3:#8A98AB;
  --white:#FFFFFF;
  --ok:#2F9E6E;
  --warn:#C8791B;
  --radius-card:16px;
  --radius-hero:20px;
  --radius-btn:10px;
  --radius-img:12px;
  --shadow-1:0 2px 8px rgba(20,58,102,.06);
  --shadow-2:0 12px 28px rgba(20,58,102,.12);
  --gutter:24px;
  --section:96px;
  --font:"PingFang SC","Microsoft YaHei","Source Han Sans SC","Noto Sans SC",system-ui,sans-serif;
}
*{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;}
body{
  margin:0;
  font-family:var(--font);
  font-size:16px;
  line-height:1.85;
  color:var(--text);
  background:var(--page-bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border:0;}
a{color:var(--brand);text-decoration:none;transition:color .18s ease-out;}
a:hover{color:var(--brand-deep);}
ul,ol{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4,p{margin:0;}
button{font-family:inherit;cursor:pointer;}
:focus-visible{outline:3px solid rgba(29,78,137,.28);outline-offset:2px;border-radius:6px;}

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

/* ---------- 顶部品牌行 ---------- */
.site-header{
  position:relative;
  background:var(--card);
  z-index:60;
}
.brand-row{
  min-height:64px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  border-bottom:1px solid var(--line);
}
.logo{
  display:inline-flex;
  align-items:center;
  gap:10px;
  color:var(--text);
  font-weight:700;
  letter-spacing:.2px;
}
.logo:hover{color:var(--brand);}
.logo-mark{
  width:34px;height:34px;
  display:inline-flex;
  align-items:center;
  justify-content:center;
  border-radius:10px;
  background:var(--brand);
  color:#fff;
  font-size:17px;
  font-weight:700;
  line-height:1;
}
.logo-text{font-size:17px;line-height:1.2;}
.brand-tools{display:flex;align-items:center;gap:6px;}
.tool-link{
  display:inline-flex;
  align-items:center;
  gap:6px;
  padding:8px 12px;
  border-radius:8px;
  font-size:14px;
  color:var(--text-2);
  transition:background .18s ease-out,color .18s ease-out;
}
.tool-link i{font-size:14px;color:var(--brand);}
.tool-link:hover{background:var(--brand-light);color:var(--brand-deep);}
.nav-toggle{
  display:none;
  width:44px;height:44px;
  align-items:center;
  justify-content:center;
  border:1px solid var(--stroke);
  border-radius:10px;
  background:#fff;
  color:var(--brand);
  font-size:18px;
}

/* ---------- 频道行 ---------- */
.channel-bar{
  position:sticky;
  top:0;
  z-index:55;
  background:var(--band);
  border-bottom:1px solid var(--line);
}
.channel-fade{position:relative;overflow:hidden;}
.channel-inner{
  display:flex;
  align-items:stretch;
  gap:4px;
  min-height:52px;
  overflow-x:auto;
  scrollbar-width:none;
}
.channel-inner::-webkit-scrollbar{display:none;}
.channel-link{
  position:relative;
  display:inline-flex;
  align-items:center;
  padding:0 16px;
  font-size:15px;
  color:var(--text-2);
  white-space:nowrap;
  border-radius:8px 8px 0 0;
  transition:background .18s ease-out,color .18s ease-out;
}
.channel-link:hover{background:var(--brand-light);color:var(--brand-deep);}
.channel-link.active{color:var(--brand);font-weight:600;}
.channel-link.active::after{
  content:"";
  position:absolute;
  left:16px;right:16px;bottom:0;
  height:2px;
  background:var(--brand);
  border-radius:2px;
}

/* ---------- 面包屑 ---------- */
.crumb-bar{background:var(--page-bg);padding:20px 0 0;}
.breadcrumb{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:8px;
  font-size:13px;
  color:var(--text-3);
}
.breadcrumb a{color:var(--text-2);}
.breadcrumb a:hover{color:var(--brand);text-decoration:underline;text-underline-offset:3px;}
.breadcrumb .sep{color:var(--stroke);}
.breadcrumb .current{color:var(--text);}

/* ---------- 通用板块 ---------- */
.section{padding:var(--section) 0;}
.section--tight{padding:64px 0;}
.section--band{background:var(--band);}
.section--mist{background:var(--brand-mist);}
.section-head{
  display:flex;
  align-items:flex-end;
  justify-content:space-between;
  gap:24px;
  margin-bottom:40px;
}
.section-head h2{
  font-size:28px;
  font-weight:700;
  line-height:1.35;
  letter-spacing:.2px;
}
.section-head .sub{
  margin-top:10px;
  font-size:15px;
  line-height:1.75;
  color:var(--text-2);
  max-width:680px;
}
.textlink{
  display:inline-flex;
  align-items:center;
  gap:6px;
  font-size:15px;
  font-weight:600;
  color:var(--brand);
  white-space:nowrap;
}
.textlink i{font-size:13px;transition:transform .18s ease-out;}
.textlink:hover i{transform:translateX(4px);}
.textlink:hover{text-decoration:underline;text-underline-offset:4px;text-decoration-thickness:2px;}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  padding:14px 28px;
  min-height:48px;
  border-radius:var(--radius-btn);
  font-size:16px;
  font-weight:600;
  line-height:1.2;
  border:1.5px solid transparent;
  transition:background .18s ease-out,color .18s ease-out,transform .18s ease-out,box-shadow .18s ease-out,border-color .18s ease-out;
}
.btn-primary{
  background:var(--brand);
  color:#fff;
  box-shadow:var(--shadow-1);
}
.btn-primary:hover{
  background:var(--brand-deep);
  color:#fff;
  transform:translateY(-1px);
  box-shadow:var(--shadow-2);
}
.btn-primary:active{transform:translateY(0);box-shadow:var(--shadow-1);}
.btn-ghost{
  background:transparent;
  border-color:var(--brand);
  color:var(--brand);
}
.btn-ghost:hover{background:var(--brand-light);color:var(--brand-deep);transform:translateY(-1px);}
.btn-ghost:active{transform:translateY(0);}
.btn-row{display:flex;flex-wrap:wrap;gap:14px;}

/* ---------- 徽章 / 标签 ---------- */
.badge{
  display:inline-flex;
  align-items:center;
  gap:6px;
  padding:5px 12px;
  border-radius:999px;
  font-size:12px;
  line-height:1.6;
  font-weight:600;
  background:var(--brand-light);
  color:var(--brand-deep);
}
.badge--accent{background:var(--accent-light);color:#B4531A;}
.badge--cool{background:var(--cool-light);color:#0B6368;}
.tag-row{display:flex;flex-wrap:wrap;gap:10px;}

/* ---------- 页面 Hero ---------- */
.page-hero{
  position:relative;
  padding:56px 0 72px;
  background:
    linear-gradient(115deg,rgba(29,78,137,.06) 0%,rgba(29,78,137,.02) 45%,rgba(29,78,137,0) 70%),
    var(--page-bg);
  overflow:hidden;
}
.page-hero::before{
  content:"";
  position:absolute;
  right:-120px;
  top:-80px;
  width:420px;height:420px;
  border-radius:50%;
  background:radial-gradient(circle,rgba(18,134,140,.10),rgba(18,134,140,0) 68%);
  pointer-events:none;
}
.hero-grid{
  display:grid;
  grid-template-columns:minmax(0,7fr) minmax(0,5fr);
  gap:56px;
  align-items:center;
  position:relative;
}
.hero-copy h1{
  font-size:42px;
  font-weight:700;
  line-height:1.25;
  letter-spacing:0;
}
.hero-copy h1 .hl{
  display:inline-block;
  position:relative;
  color:var(--brand);
}
.hero-copy h1 .hl::after{
  content:"";
  position:absolute;
  left:0;right:0;bottom:2px;
  height:6px;
  border-radius:3px;
  background:rgba(242,121,47,.28);
  z-index:-1;
}
.hero-lead{
  margin-top:18px;
  font-size:16px;
  line-height:1.95;
  color:var(--text-2);
  max-width:560px;
}
.hero-meta{
  margin-top:22px;
  display:flex;
  flex-wrap:wrap;
  gap:10px;
}
.hero-actions{margin-top:30px;}
.hero-note{
  margin-top:26px;
  display:flex;
  flex-wrap:wrap;
  gap:22px;
  font-size:13px;
  color:var(--text-3);
}
.hero-note span{display:inline-flex;align-items:center;gap:7px;}
.hero-note i{color:var(--cool);font-size:14px;}
.hero-visual{
  position:relative;
  border-radius:var(--radius-hero);
  overflow:hidden;
  box-shadow:var(--shadow-2);
  background:var(--brand-light);
}
.hero-visual img{
  width:100%;
  aspect-ratio:16/10;
  object-fit:cover;
}
.hero-float{
  position:absolute;
  right:20px;
  bottom:20px;
  background:#fff;
  border-radius:14px;
  padding:14px 18px;
  box-shadow:var(--shadow-2);
  min-width:150px;
}
.hero-float .num{
  font-size:26px;
  font-weight:700;
  line-height:1.2;
  color:var(--brand);
  font-variant-numeric:tabular-nums;
}
.hero-float .note{
  margin-top:4px;
  font-size:12px;
  line-height:1.6;
  color:var(--text-3);
}

/* ---------- 功能卡片网格 ---------- */
.card-grid{
  display:grid;
  grid-template-columns:repeat(3,minmax(0,1fr));
  gap:var(--gutter);
}
.feature-card{
  display:flex;
  flex-direction:column;
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--radius-card);
  overflow:hidden;
  box-shadow:var(--shadow-1);
  transition:transform .18s ease-out,box-shadow .18s ease-out,border-color .18s ease-out;
}
.feature-card:hover,
.feature-card:focus-within{
  transform:translateY(-2px);
  box-shadow:var(--shadow-2);
  border-color:var(--stroke);
}
.feature-card .thumb{
  position:relative;
  overflow:hidden;
  background:var(--brand-light);
}
.feature-card .thumb img{
  width:100%;
  aspect-ratio:16/10;
  object-fit:cover;
  transition:transform .18s ease-out;
}
.feature-card:hover .thumb img{transform:scale(1.03);}
.feature-card .thumb .badge{
  position:absolute;
  left:14px;
  top:14px;
  background:rgba(255,255,255,.94);
  color:var(--brand-deep);
  box-shadow:var(--shadow-1);
}
.feature-card .body{
  padding:22px 22px 24px;
  display:flex;
  flex-direction:column;
  gap:10px;
  flex:1;
}
.feature-card h3{
  font-size:18px;
  font-weight:600;
  line-height:1.5;
}
.feature-card p{
  font-size:14px;
  line-height:1.75;
  color:var(--text-2);
}
.feature-card .card-foot{
  margin-top:auto;
  padding-top:10px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  font-size:13px;
  color:var(--text-3);
}
.feature-card .card-foot i{transition:transform .18s ease-out;color:var(--brand);}
.feature-card:hover .card-foot i{transform:translateX(4px);}
.card-link{
  position:absolute;
  inset:0;
  z-index:2;
  font-size:0;
  text-indent:-9999px;
}

/* ---------- 流程条 ---------- */
.flow-grid{
  display:grid;
  grid-template-columns:repeat(4,minmax(0,1fr));
  gap:var(--gutter);
}
.flow-item{
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--radius-card);
  padding:26px 22px;
  box-shadow:var(--shadow-1);
  position:relative;
}
.flow-item .step{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  width:38px;height:38px;
  border-radius:10px;
  background:var(--brand-light);
  color:var(--brand-deep);
  font-weight:700;
  font-size:15px;
  margin-bottom:14px;
  font-variant-numeric:tabular-nums;
}
.flow-item h3{font-size:17px;font-weight:600;margin-bottom:8px;}
.flow-item p{font-size:14px;line-height:1.75;color:var(--text-2);}

/* ---------- 数据带 ---------- */
.stat-band{
  display:grid;
  grid-template-columns:repeat(4,minmax(0,1fr));
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--radius-card);
  box-shadow:var(--shadow-1);
  overflow:hidden;
}
.stat-item{
  padding:28px 24px;
  border-right:1px solid var(--line);
}
.stat-item:last-child{border-right:0;}
.stat-item .num{
  font-size:30px;
  font-weight:700;
  line-height:1.2;
  color:var(--brand);
  font-variant-numeric:tabular-nums;
}
.stat-item .num em{font-style:normal;font-size:15px;color:var(--text-2);margin-left:4px;font-weight:600;}
.stat-item .label{
  margin-top:8px;
  font-size:14px;
  color:var(--text-2);
  line-height:1.7;
}

/* ---------- 说明列表 ---------- */
.note-panel{
  display:grid;
  grid-template-columns:minmax(0,1fr) minmax(0,1fr);
  gap:32px;
  align-items:start;
}
.note-card{
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--radius-card);
  padding:30px;
  box-shadow:var(--shadow-1);
}
.note-card h3{
  font-size:20px;
  font-weight:600;
  margin-bottom:16px;
  padding-left:12px;
  border-left:3px solid var(--brand);
  line-height:1.4;
}
.check-list li{
  display:flex;
  gap:12px;
  padding:12px 0;
  border-bottom:1px dashed var(--line);
  font-size:15px;
  line-height:1.8;
  color:var(--text-2);
}
.check-list li:last-child{border-bottom:0;padding-bottom:0;}
.check-list i{
  color:var(--brand);
  font-size:14px;
  margin-top:7px;
  flex:0 0 auto;
}
.check-list strong{color:var(--text);font-weight:600;}

/* ---------- FAQ ---------- */
.faq-wrap{max-width:900px;margin:0 auto;}
.faq-item{
  background:var(--card);
  border:1px solid var(--line);
  border-radius:12px;
  margin-bottom:14px;
  box-shadow:var(--shadow-1);
  transition:border-color .18s ease-out,box-shadow .18s ease-out;
  overflow:hidden;
}
.faq-item.open{border-color:var(--brand);box-shadow:var(--shadow-2);}
.faq-q{
  width:100%;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:18px;
  padding:20px 24px;
  background:transparent;
  border:0;
  text-align:left;
  font-size:16px;
  font-weight:600;
  color:var(--text);
  line-height:1.6;
}
.faq-q:hover{color:var(--brand-deep);}
.faq-q .ico{
  flex:0 0 auto;
  width:26px;height:26px;
  display:inline-flex;
  align-items:center;
  justify-content:center;
  border-radius:50%;
  background:var(--brand-light);
  color:var(--brand);
  font-size:13px;
  transition:background .18s ease-out,color .18s ease-out,transform .2s ease-out;
}
.faq-item.open .faq-q .ico{background:var(--brand);color:#fff;transform:rotate(180deg);}
.faq-a{
  max-height:0;
  overflow:hidden;
  transition:max-height .22s ease-out;
}
.faq-a .inner{
  padding:0 24px 22px;
  font-size:15px;
  line-height:1.9;
  color:var(--text-2);
}

/* ---------- CTA ---------- */
.cta-band{
  position:relative;
  background:var(--brand-mist);
  border:1px solid var(--line);
  border-radius:var(--radius-hero);
  padding:56px 48px;
  overflow:hidden;
  text-align:center;
}
.cta-band h2{
  font-size:28px;
  font-weight:700;
  line-height:1.4;
}
.cta-band p{
  margin:14px auto 0;
  max-width:640px;
  font-size:15px;
  line-height:1.9;
  color:var(--text-2);
}
.cta-band .btn-row{justify-content:center;margin-top:28px;}
.cta-band::after{
  content:"";
  position:absolute;
  left:50%;
  bottom:-160px;
  width:520px;height:320px;
  transform:translateX(-50%);
  border-radius:50%;
  background:radial-gradient(circle,rgba(29,78,137,.08),rgba(29,78,137,0) 70%);
  pointer-events:none;
}

/* ---------- 相关频道 ---------- */
.channel-pills{
  display:flex;
  flex-wrap:wrap;
  gap:14px;
  margin-top:28px;
}
.pill{
  display:inline-flex;
  align-items:center;
  gap:8px;
  padding:12px 22px;
  border-radius:999px;
  background:var(--card);
  border:1px solid var(--stroke);
  font-size:15px;
  color:var(--text);
  box-shadow:var(--shadow-1);
  transition:transform .18s ease-out,border-color .18s ease-out,color .18s ease-out,box-shadow .18s ease-out;
}
.pill i{color:var(--brand);font-size:13px;}
.pill:hover{
  transform:translateY(-2px);
  border-color:var(--brand);
  color:var(--brand-deep);
  box-shadow:var(--shadow-2);
}

/* ---------- 页脚 ---------- */
.site-footer{
  background:var(--band);
  border-top:1px solid var(--line);
  padding:64px 0 0;
  font-size:14px;
  color:var(--text-2);
}
.footer-grid{
  display:grid;
  grid-template-columns:1.4fr 1fr 1fr 1.3fr;
  gap:40px;
  padding-bottom:44px;
}
.footer-brand .logo{margin-bottom:16px;}
.footer-desc{font-size:13px;line-height:1.9;color:var(--text-2);max-width:300px;}
.footer-col h3{
  font-size:15px;
  font-weight:600;
  color:var(--text);
  margin-bottom:16px;
}
.footer-links li{margin-bottom:10px;}
.footer-links a{font-size:13px;color:var(--text-2);}
.footer-links a:hover{color:var(--brand);text-decoration:underline;text-underline-offset:3px;}
.footer-contact li{
  display:flex;
  gap:10px;
  font-size:13px;
  line-height:1.8;
  margin-bottom:10px;
  color:var(--text-2);
}
.footer-contact i{color:var(--brand);margin-top:5px;flex:0 0 auto;}
.footer-bottom{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  justify-content:space-between;
  gap:12px;
  padding:18px 0 22px;
  border-top:1px solid var(--stroke);
  font-size:13px;
  color:var(--text-3);
}

/* ---------- 响应式 ---------- */
@media screen and (max-width:1024px){
  :root{--section:72px;--gutter:20px;}
  .container{padding:0 20px;}
  .hero-grid{grid-template-columns:1fr;gap:36px;}
  .hero-copy h1{font-size:34px;}
  .hero-visual{order:-1;}
  .card-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
  .flow-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
  .stat-band{grid-template-columns:repeat(2,minmax(0,1fr));}
  .stat-item:nth-child(2){border-right:0;}
  .stat-item:nth-child(1),
  .stat-item:nth-child(2){border-bottom:1px solid var(--line);}
  .note-panel{grid-template-columns:1fr;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
  .brand-tools{display:none;}
  .nav-toggle{display:inline-flex;}
  .channel-bar{display:none;}
  .channel-bar.mobile-open{display:block;position:static;}
  .channel-bar.mobile-open .channel-inner{
    flex-direction:column;
    align-items:stretch;
    padding:10px 0 16px;
    overflow:visible;
  }
  .channel-bar.mobile-open .channel-link{
    padding:12px 14px;
    border-radius:8px;
  }
  .channel-bar.mobile-open .channel-link.active::after{display:none;}
  .channel-bar.mobile-open .channel-link.active{background:var(--card);}
  .section-head{flex-direction:column;align-items:flex-start;gap:14px;}
  .cta-band{padding:44px 26px;}
}

@media screen and (max-width:640px){
  :root{--section:56px;--gutter:16px;}
  .container{padding:0 16px;}
  .hero-copy h1{font-size:28px;}
  .hero-lead{font-size:15px;}
  .page-hero{padding:36px 0 48px;}
  .card-grid{grid-template-columns:1fr;}
  .flow-grid{grid-template-columns:1fr;}
  .stat-band{grid-template-columns:1fr;}
  .stat-item{border-right:0;border-bottom:1px solid var(--line);}
  .stat-item:last-child{border-bottom:0;}
  .section-head h2{font-size:22px;}
  .cta-band h2{font-size:22px;}
  .btn{width:100%;}
  .btn-row{flex-direction:column;align-items:stretch;}
  .footer-grid{grid-template-columns:1fr;}
  .footer-bottom{flex-direction:column;align-items:flex-start;}
  .hero-float{padding:12px 14px;min-width:130px;right:14px;bottom:14px;}
  .hero-float .num{font-size:22px;}
  .faq-q{font-size:15px;padding:18px;}
  .faq-a .inner{padding:0 18px 18px;}
  .flow-item,.note-card{padding:22px 18px;}
  .feature-card .body{padding:18px;}
}

/* roulang page: category2 */
:root{
  --brand:#1D4E89;
  --brand-dark:#143A66;
  --brand-light:#E8F0FA;
  --brand-faint:#F3F7FC;
  --accent:#F2792F;
  --accent-soft:#FDF0E6;
  --cool:#12868C;
  --cool-soft:#E4F3F3;
  --bg:#F7F9FC;
  --surface:#FFFFFF;
  --band:#EDF2F9;
  --line:#E2E9F3;
  --border:#D6E0EE;
  --text:#1B2A3F;
  --text-2:#5A6B80;
  --text-3:#8A98AB;
  --white:#FFFFFF;
  --radius-card:16px;
  --radius-lg:20px;
  --radius-img:12px;
  --radius-btn:10px;
  --shadow-1:0 2px 8px rgba(20,58,102,.06);
  --shadow-2:0 12px 28px rgba(20,58,102,.12);
  --sp-1:8px;
  --sp-2:16px;
  --sp-3:24px;
  --sp-4:32px;
  --sp-5:48px;
  --sp-6:64px;
  --sp-7:96px;
  --ease:180ms ease-out;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;}
body{
  margin:0;
  padding:0;
  background:var(--bg);
  color:var(--text);
  font-family:"PingFang SC","Microsoft YaHei","Source Han Sans SC","Noto Sans SC",system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:16px;
  line-height:1.85;
  -webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4,p,ul,ol,figure{margin:0;}
ul,ol{padding:0;list-style:none;}
img{max-width:100%;display:block;}
a{color:var(--brand);text-decoration:none;transition:color var(--ease),background-color var(--ease),border-color var(--ease);}
a:hover{color:var(--brand-dark);}
button{font-family:inherit;font-size:inherit;cursor:pointer;border:none;background:none;color:inherit;}
:focus-visible{outline:3px solid rgba(29,78,137,.28);outline-offset:2px;}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px;}

/* ---------- header ---------- */
.site-header{position:sticky;top:0;z-index:120;background:var(--surface);border-bottom:1px solid var(--line);}
.brand-row{display:flex;align-items:center;justify-content:space-between;height:64px;gap:16px;}
.logo{display:inline-flex;align-items:center;gap:10px;color:var(--text);}
.logo:hover{color:var(--text);}
.logo-mark{
  width:36px;height:36px;border-radius:10px;
  background:linear-gradient(135deg,var(--brand),var(--brand-dark));
  color:var(--white);font-size:18px;font-weight:700;
  display:inline-flex;align-items:center;justify-content:center;
  letter-spacing:0;
}
.logo-text{font-size:18px;font-weight:700;letter-spacing:.2px;}
.brand-tools{display:flex;align-items:center;gap:20px;}
.tool-link{display:inline-flex;align-items:center;gap:6px;font-size:14px;color:var(--text-2);padding:6px 2px;border-radius:8px;}
.tool-link i{font-size:14px;color:var(--text-3);transition:color var(--ease);}
.tool-link:hover{color:var(--brand);}
.tool-link:hover i{color:var(--brand);}
.nav-toggle{
  display:none;width:44px;height:44px;border-radius:10px;
  border:1px solid var(--border);color:var(--brand);font-size:17px;
  align-items:center;justify-content:center;background:var(--surface);
}
.channel-bar{background:var(--band);border-bottom:1px solid var(--line);}
.channel-fade{position:relative;}
.channel-inner{display:flex;align-items:center;gap:6px;height:52px;overflow-x:auto;scrollbar-width:none;}
.channel-inner::-webkit-scrollbar{display:none;}
.channel-link{
  flex:0 0 auto;padding:8px 14px;border-radius:8px;
  font-size:15px;color:var(--text-2);font-weight:500;white-space:nowrap;
  transition:background-color var(--ease),color var(--ease),box-shadow var(--ease);
}
.channel-link:hover{background:var(--brand-light);color:var(--brand);}
.channel-link.active{color:var(--brand);font-weight:600;box-shadow:inset 0 -2px 0 var(--brand);border-radius:8px 8px 2px 2px;}

/* ---------- page head ---------- */
.page-head{padding:40px 0 8px;}
.breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--text-3);}
.breadcrumb a{color:var(--text-3);}
.breadcrumb a:hover{color:var(--brand);}
.breadcrumb .sep{color:var(--border);}
.breadcrumb .current{color:var(--text-2);}
.page-title{
  font-size:42px;line-height:1.25;font-weight:700;letter-spacing:0;
  margin:18px 0 14px;color:var(--text);
}
.lede{font-size:16px;line-height:1.9;color:var(--text-2);max-width:780px;}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:14px 28px;border-radius:var(--radius-btn);
  font-size:15px;font-weight:600;line-height:1.2;
  transition:background-color var(--ease),color var(--ease),border-color var(--ease),transform var(--ease),box-shadow var(--ease);
}
.btn-primary{background:var(--brand);color:var(--white);box-shadow:var(--shadow-1);}
.btn-primary:hover{background:linear-gradient(135deg,var(--brand),var(--brand-dark));color:var(--white);transform:translateY(-1px);box-shadow:var(--shadow-2);}
.btn-primary:active{transform:translateY(0);}
.btn-ghost{background:transparent;color:var(--brand);border:1.5px solid var(--brand);}
.btn-ghost:hover{background:var(--brand-light);color:var(--brand-dark);}
.btn-text{display:inline-flex;align-items:center;gap:6px;padding:6px 0;color:var(--brand);font-weight:600;font-size:15px;border-bottom:2px solid transparent;transition:border-color var(--ease),color var(--ease);}
.btn-text i{transition:transform var(--ease);}
.btn-text:hover{border-bottom-color:var(--brand);color:var(--brand-dark);}
.btn-text:hover i{transform:translateX(4px);}

/* ---------- banner ---------- */
.banner-wrap{padding:32px 0 0;}
.page-banner{
  position:relative;border-radius:var(--radius-lg);overflow:hidden;
  min-height:320px;display:flex;align-items:center;justify-content:flex-end;
  padding:36px;
  background-image:linear-gradient(100deg,rgba(20,58,102,.55),rgba(20,58,102,.28)),url("/assets/images/backpic/back-1.webp");
  background-size:cover;background-position:center;
  box-shadow:var(--shadow-1);
}
.banner-card{
  background:var(--surface);border-radius:var(--radius-card);
  padding:28px;max-width:400px;box-shadow:var(--shadow-2);
}
.banner-card h2{font-size:21px;line-height:1.45;font-weight:700;margin-bottom:10px;}
.banner-card p{font-size:14px;line-height:1.8;color:var(--text-2);margin-bottom:18px;}
.banner-actions{display:flex;flex-wrap:wrap;align-items:center;gap:16px;}
.banner-badge{
  display:inline-flex;align-items:center;gap:6px;
  background:var(--accent-soft);color:var(--accent);
  font-size:12px;font-weight:600;padding:5px 12px;border-radius:999px;margin-bottom:12px;
}

/* ---------- sections ---------- */
.section{padding:72px 0;}
.section-tight{padding:56px 0;}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:32px;flex-wrap:wrap;}
.section-title{font-size:28px;line-height:1.35;font-weight:700;color:var(--text);}
.section-sub{font-size:14px;line-height:1.75;color:var(--text-2);margin-top:8px;max-width:620px;}
.section-tag{font-size:13px;color:var(--brand);background:var(--brand-light);padding:6px 14px;border-radius:999px;font-weight:600;}

/* ---------- entry list ---------- */
.entry-list{border-bottom:1px solid var(--line);}
.entry{
  display:grid;grid-template-columns:180px minmax(0,1fr) 48px;
  gap:24px;align-items:center;padding:24px 0;border-top:1px solid var(--line);
  transition:background-color var(--ease),padding-left var(--ease);
}
.entry:hover{background:var(--surface);padding-left:12px;}
.entry-thumb{width:180px;height:120px;border-radius:var(--radius-img);overflow:hidden;background:var(--brand-light);}
.entry-thumb img{width:100%;height:100%;object-fit:cover;transition:transform 260ms ease-out;}
.entry:hover .entry-thumb img{transform:scale(1.04);}
.entry-body{min-width:0;}
.entry-title{font-size:18px;font-weight:600;line-height:1.5;color:var(--text);margin-bottom:8px;}
.entry-desc{font-size:14px;line-height:1.75;color:var(--text-2);margin-bottom:10px;}
.entry-meta{display:flex;flex-wrap:wrap;align-items:center;gap:10px;font-size:13px;color:var(--text-3);}
.entry-meta .dot{width:4px;height:4px;border-radius:50%;background:var(--border);display:inline-block;}
.entry-meta .tag{color:var(--cool);background:var(--cool-soft);padding:2px 10px;border-radius:999px;font-size:12px;font-weight:600;}
.entry-go{
  width:44px;height:44px;border-radius:999px;border:1.5px solid var(--border);
  display:inline-flex;align-items:center;justify-content:center;
  color:var(--brand);font-size:14px;background:var(--surface);
  transition:background-color var(--ease),color var(--ease),border-color var(--ease),transform var(--ease);
}
.entry:hover .entry-go{background:var(--brand);border-color:var(--brand);color:var(--white);transform:translateX(2px);}

/* ---------- scene cards ---------- */
.scene-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px;}
.scene-card{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-card);
  padding:28px;box-shadow:var(--shadow-1);
  transition:transform var(--ease),box-shadow var(--ease),border-color var(--ease);
}
.scene-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-2);border-color:var(--border);}
.scene-icon{
  width:44px;height:44px;border-radius:12px;background:var(--brand-light);
  color:var(--brand);display:inline-flex;align-items:center;justify-content:center;
  font-size:18px;margin-bottom:16px;
}
.scene-card h3{font-size:18px;font-weight:600;line-height:1.5;margin-bottom:10px;}
.scene-card p{font-size:14px;line-height:1.8;color:var(--text-2);}
.scene-list{margin-top:14px;display:grid;gap:8px;}
.scene-list li{position:relative;padding-left:18px;font-size:14px;line-height:1.75;color:var(--text-2);}
.scene-list li::before{content:"";position:absolute;left:0;top:10px;width:6px;height:6px;border-radius:2px;background:var(--brand);}

/* ---------- steps ---------- */
.steps-band{background:var(--band);border-radius:var(--radius-lg);padding:40px;}
.steps{display:grid;gap:16px;margin-top:28px;}
.step{
  display:grid;grid-template-columns:44px minmax(0,1fr);gap:18px;align-items:flex-start;
  background:var(--surface);border:1px solid var(--line);border-radius:14px;padding:22px 24px;
  transition:border-color var(--ease),box-shadow var(--ease);
}
.step:hover{border-color:var(--brand);box-shadow:var(--shadow-1);}
.step-num{
  width:40px;height:40px;border-radius:12px;background:var(--accent-soft);color:var(--accent);
  display:inline-flex;align-items:center;justify-content:center;font-weight:700;font-size:16px;
}
.step h3{font-size:17px;font-weight:600;margin-bottom:6px;}
.step p{font-size:14px;line-height:1.8;color:var(--text-2);}

/* ---------- cta band ---------- */
.cta-band{
  background:var(--brand-faint);border:1px solid var(--line);border-radius:var(--radius-lg);
  padding:52px 40px;text-align:center;
}
.cta-band h2{font-size:26px;line-height:1.4;font-weight:700;margin-bottom:12px;}
.cta-band p{font-size:15px;line-height:1.85;color:var(--text-2);max-width:640px;margin:0 auto 26px;}
.cta-actions{display:flex;flex-wrap:wrap;align-items:center;justify-content:center;gap:18px;}

/* ---------- related channels ---------- */
.pill-links{display:flex;flex-wrap:wrap;gap:12px;margin-top:24px;}
.pill{
  display:inline-flex;align-items:center;gap:8px;
  padding:11px 22px;border-radius:999px;border:1px solid var(--border);
  background:var(--surface);color:var(--text);font-size:14px;font-weight:500;
  transition:border-color var(--ease),color var(--ease),background-color var(--ease),transform var(--ease);
}
.pill:hover{border-color:var(--brand);color:var(--brand);background:var(--brand-light);transform:translateY(-1px);}
.pill i{font-size:12px;color:var(--text-3);}
.pill:hover i{color:var(--brand);}

/* ---------- footer ---------- */
.site-footer{background:var(--band);border-top:1px solid var(--line);padding:64px 0 0;margin-top:80px;}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.3fr;gap:40px;}
.footer-brand .logo{margin-bottom:16px;}
.footer-desc{font-size:14px;line-height:1.85;color:var(--text-2);max-width:320px;}
.footer-col h3{font-size:15px;font-weight:700;color:var(--text);margin-bottom:18px;}
.footer-links li{margin-bottom:10px;}
.footer-links a{font-size:14px;color:var(--text-2);}
.footer-links a:hover{color:var(--brand);text-decoration:underline;text-underline-offset:4px;}
.footer-contact li{display:flex;align-items:flex-start;gap:10px;font-size:14px;line-height:1.75;color:var(--text-2);margin-bottom:12px;}
.footer-contact i{color:var(--brand);font-size:14px;margin-top:6px;}
.footer-bottom{
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:12px;
  border-top:1px solid var(--line);margin-top:48px;padding:24px 0 28px;
  font-size:13px;color:var(--text-3);
}

/* ---------- responsive ---------- */
@media (max-width:1024px){
  .nav-toggle{display:inline-flex;}
  .brand-tools{display:none;}
  .channel-bar{display:none;}
  .channel-bar.open{display:block;position:static;}
  .channel-bar.open .channel-inner{flex-direction:column;align-items:stretch;height:auto;padding:12px 0 16px;gap:4px;overflow:visible;}
  .channel-bar.open .channel-link{padding:12px 14px;font-size:15px;}
  .channel-bar.open .channel-link.active{box-shadow:inset 3px 0 0 var(--brand);border-radius:0 8px 8px 0;}
  .page-title{font-size:32px;}
  .page-banner{justify-content:center;padding:28px;}
  .banner-card{max-width:100%;}
  .scene-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
  .footer-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:32px;}
  .section{padding:64px 0;}
}
@media (max-width:768px){
  .entry{grid-template-columns:140px minmax(0,1fr) 44px;gap:18px;}
  .entry-thumb{width:140px;height:96px;}
  .entry-title{font-size:16px;}
  .entry-desc{font-size:13px;}
  .page-title{font-size:30px;}
  .section-title{font-size:24px;}
  .cta-band{padding:40px 24px;}
  .cta-band h2{font-size:22px;}
  .steps-band{padding:28px 20px;}
  .entry:hover{padding-left:0;}
}
@media (max-width:640px){
  .container{padding:0 16px;}
  .page-head{padding:28px 0 4px;}
  .page-title{font-size:27px;}
  .lede{font-size:15px;}
  .page-banner{min-height:0;padding:20px;border-radius:16px;}
  .banner-card{padding:22px;}
  .banner-actions{gap:12px;}
  .btn{padding:13px 22px;font-size:15px;min-height:44px;}
  .entry{grid-template-columns:minmax(0,1fr);gap:14px;padding:20px 0;}
  .entry-thumb{width:100%;height:170px;}
  .entry-go{display:none;}
  .scene-grid{grid-template-columns:minmax(0,1fr);gap:16px;}
  .step{grid-template-columns:36px minmax(0,1fr);padding:18px;gap:14px;}
  .step-num{width:36px;height:36px;font-size:15px;}
  .section{padding:48px 0;}
  .section-tight{padding:44px 0;}
  .cta-actions{gap:14px;}
  .cta-actions .btn{width:100%;}
  .footer-grid{grid-template-columns:minmax(0,1fr);gap:28px;}
  .site-footer{padding:48px 0 0;margin-top:56px;}
  .footer-bottom{flex-direction:column;align-items:flex-start;gap:8px;}
}

/* roulang page: category3 */
:root{
  --brand:#1D4E89;
  --brand-dark:#143A66;
  --brand-light:#E8F0FA;
  --brand-mist:#F3F7FC;
  --accent:#F2792F;
  --accent-light:#FDF0E6;
  --teal:#12868C;
  --teal-light:#E4F3F3;
  --bg:#F7F9FC;
  --surface:#FFFFFF;
  --band:#EDF2F9;
  --line:#E2E9F3;
  --stroke:#D6E0EE;
  --text:#1B2A3F;
  --text-2:#5A6B80;
  --text-3:#8A98AB;
  --radius-card:16px;
  --radius-lg:20px;
  --radius-btn:10px;
  --shadow-1:0 2px 8px rgba(20,58,102,.06);
  --shadow-2:0 12px 28px rgba(20,58,102,.12);
  --container:1200px;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;}
body{
  margin:0;
  font-family:"PingFang SC","Microsoft YaHei","Source Han Sans SC","Noto Sans SC",system-ui,-apple-system,sans-serif;
  font-size:16px;
  line-height:1.85;
  color:var(--text);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;}
a{color:var(--brand);text-decoration:none;transition:color .18s ease;}
a:hover{color:var(--brand-dark);}
button{font-family:inherit;}
h1,h2,h3,h4{margin:0;color:var(--text);font-weight:700;line-height:1.35;}
p{margin:0 0 16px;}
ul{margin:0;padding:0;list-style:none;}
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 24px;}
:focus-visible{outline:3px solid rgba(29,78,137,.35);outline-offset:2px;border-radius:6px;}

/* ---------- header ---------- */
.site-header{position:relative;background:var(--surface);box-shadow:0 1px 0 var(--line);}
.brand-row{display:flex;align-items:center;justify-content:space-between;height:64px;gap:16px;}
.logo{display:inline-flex;align-items:center;gap:10px;color:var(--text);}
.logo-mark{
  width:34px;height:34px;border-radius:10px;display:inline-flex;align-items:center;justify-content:center;
  background:linear-gradient(160deg,var(--brand),var(--brand-dark));color:#fff;font-size:17px;font-weight:700;
}
.logo-text{font-size:18px;font-weight:700;letter-spacing:.3px;color:var(--text);}
.brand-tools{display:flex;align-items:center;gap:6px;}
.tool-link{
  display:inline-flex;align-items:center;gap:6px;padding:8px 12px;border-radius:8px;
  font-size:14px;color:var(--text-2);
}
.tool-link i{font-size:14px;color:var(--text-3);}
.tool-link:hover{background:var(--brand-light);color:var(--brand);}
.tool-link:hover i{color:var(--brand);}
.nav-toggle{
  display:none;width:44px;height:44px;border:1px solid var(--stroke);background:var(--surface);
  border-radius:10px;color:var(--brand);font-size:16px;cursor:pointer;
}
.channel-bar{background:var(--band);border-top:1px solid var(--line);border-bottom:1px solid var(--line);position:sticky;top:0;z-index:60;}
.channel-fade{overflow-x:auto;scrollbar-width:none;}
.channel-fade::-webkit-scrollbar{display:none;}
.channel-inner{display:flex;align-items:stretch;height:54px;gap:2px;min-width:max-content;}
.channel-link{
  display:inline-flex;align-items:center;padding:0 16px;font-size:15px;color:var(--text-2);
  border-bottom:2px solid transparent;white-space:nowrap;
}
.channel-link:hover{background:rgba(29,78,137,.07);color:var(--brand);}
.channel-link.active{color:var(--brand);font-weight:600;border-bottom-color:var(--brand);}
.mobile-drawer{
  display:none;position:absolute;left:0;right:0;top:100%;background:var(--surface);
  border-bottom:1px solid var(--line);box-shadow:var(--shadow-2);padding:12px 0 20px;z-index:70;
}
.mobile-drawer.open{display:block;}
.mobile-drawer .drawer-title{font-size:13px;color:var(--text-3);padding:10px 24px 6px;letter-spacing:.5px;}
.mobile-drawer a{display:block;padding:12px 24px;font-size:15px;color:var(--text-2);border-left:3px solid transparent;}
.mobile-drawer a:hover,.mobile-drawer a.active{background:var(--brand-mist);color:var(--brand);border-left-color:var(--brand);}

/* ---------- breadcrumb ---------- */
.breadcrumb{padding:20px 0 0;}
.breadcrumb ol{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--text-3);}
.breadcrumb a{color:var(--text-2);}
.breadcrumb a:hover{color:var(--brand);}
.breadcrumb .sep{color:var(--stroke);}
.breadcrumb .current{color:var(--text-2);}

/* ---------- hero ---------- */
.category-hero{background:var(--brand-mist);border-bottom:1px solid var(--line);}
.hero-grid{display:grid;grid-template-columns:1.2fr .8fr;gap:56px;align-items:center;padding:56px 0 64px;}
.hero-label{
  display:inline-flex;align-items:center;gap:8px;padding:6px 14px;border-radius:999px;
  background:var(--accent-light);color:#B4520E;font-size:13px;font-weight:600;margin-bottom:18px;
}
.hero-label i{font-size:12px;}
.category-hero h1{font-size:42px;line-height:1.25;letter-spacing:-.5px;margin-bottom:18px;}
.hero-lead{font-size:16px;color:var(--text-2);line-height:1.9;max-width:600px;margin-bottom:26px;}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:26px;}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:14px 28px;border-radius:var(--radius-btn);font-size:16px;font-weight:600;
  border:1.5px solid transparent;cursor:pointer;transition:all .18s ease;min-height:44px;
}
.btn-primary{background:var(--brand);color:#fff;box-shadow:var(--shadow-1);}
.btn-primary:hover{background:var(--brand-dark);color:#fff;transform:translateY(-1px);box-shadow:var(--shadow-2);}
.btn-primary:active{transform:translateY(0);}
.btn-ghost{background:transparent;border-color:var(--brand);color:var(--brand);}
.btn-ghost:hover{background:var(--brand-light);color:var(--brand-dark);}
.hero-marks{display:flex;flex-wrap:wrap;gap:22px;}
.hero-mark{display:inline-flex;align-items:center;gap:8px;font-size:14px;color:var(--text-2);}
.hero-mark i{color:var(--teal);font-size:15px;}
.hero-shot{position:relative;}
.hero-shot img{width:100%;aspect-ratio:16/10;object-fit:cover;border-radius:var(--radius-lg);box-shadow:var(--shadow-2);}
.hero-float{
  position:absolute;right:20px;bottom:20px;background:var(--surface);border-radius:14px;
  padding:16px 20px;box-shadow:var(--shadow-2);min-width:170px;
}
.hero-float .num{font-size:24px;font-weight:700;color:var(--brand);line-height:1.2;font-family:Inter,-apple-system,sans-serif;}
.hero-float .txt{font-size:13px;color:var(--text-2);margin-top:2px;}

/* ---------- section base ---------- */
.section{padding:88px 0;}
.section.band{background:var(--band);}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:36px;flex-wrap:wrap;}
.section-head h2{font-size:28px;line-height:1.35;}
.section-head .sub{font-size:15px;color:var(--text-2);margin-top:8px;max-width:640px;}
.text-link{display:inline-flex;align-items:center;gap:8px;font-size:15px;font-weight:600;color:var(--brand);}
.text-link i{transition:transform .18s ease;}
.text-link:hover i{transform:translateX(4px);}

/* ---------- tag pills ---------- */
.tag-row{display:flex;flex-wrap:wrap;gap:12px;margin-bottom:12px;}
.tag-pill{
  display:inline-flex;align-items:center;gap:8px;padding:9px 18px;border-radius:999px;
  border:1px solid var(--stroke);background:var(--surface);color:var(--text-2);
  font-size:14px;font-weight:500;min-height:40px;transition:all .18s ease;
}
.tag-pill:hover{border-color:var(--brand);color:var(--brand);background:var(--brand-mist);}
.tag-pill.active{background:var(--brand);border-color:var(--brand);color:#fff;font-weight:600;}
.tag-pill.active:hover{background:var(--brand-dark);border-color:var(--brand-dark);color:#fff;}
.tag-note{font-size:13px;color:var(--text-3);margin:0 0 36px;}

/* ---------- topic list (two columns, no card frame) ---------- */
.topic-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));column-gap:64px;}
.topic-item{
  padding:26px 0 24px;border-bottom:1px solid var(--line);display:flex;flex-direction:column;gap:10px;
  transition:transform .18s ease;
}
.topic-item:hover{transform:translateY(-2px);}
.topic-meta{display:flex;align-items:center;gap:10px;font-size:13px;color:var(--text-3);}
.topic-badge{
  display:inline-flex;align-items:center;padding:3px 10px;border-radius:999px;
  background:var(--brand-light);color:var(--brand);font-size:12px;font-weight:600;
}
.topic-badge.teal{background:var(--teal-light);color:var(--teal);}
.topic-title{font-size:18px;font-weight:600;line-height:1.55;color:var(--text);}
.topic-item:hover .topic-title{color:var(--brand);}
.topic-desc{
  font-size:14px;color:var(--text-2);line-height:1.8;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.topic-foot{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-top:4px;}
.topic-date{font-size:13px;color:var(--text-3);font-variant-numeric:tabular-nums;font-family:Inter,-apple-system,sans-serif;}
.topic-more{display:inline-flex;align-items:center;gap:8px;font-size:14px;font-weight:600;color:var(--brand);}
.topic-more i{transition:transform .18s ease;font-size:12px;}
.topic-more:hover i{transform:translateX(4px);}

/* ---------- notice band ---------- */
.notice-band{
  position:relative;border-radius:var(--radius-lg);overflow:hidden;
  background-image:linear-gradient(90deg,rgba(20,58,102,.86),rgba(29,78,137,.62)),url(/assets/images/backpic/back-2.webp);
  background-size:cover;background-position:center;padding:44px 48px;color:#fff;
  display:flex;align-items:center;justify-content:space-between;gap:32px;flex-wrap:wrap;
}
.notice-band h2{color:#fff;font-size:24px;margin-bottom:10px;}
.notice-band p{color:rgba(255,255,255,.85);font-size:15px;margin:0;max-width:620px;}
.notice-band .btn-light{
  background:#fff;color:var(--brand);padding:13px 26px;border-radius:var(--radius-btn);
  font-weight:600;font-size:15px;display:inline-flex;align-items:center;gap:8px;min-height:44px;
}
.notice-band .btn-light:hover{background:var(--brand-light);color:var(--brand-dark);}

/* ---------- steps ---------- */
.step-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:24px;}
.step-card{
  background:var(--surface);border-radius:var(--radius-card);padding:28px 24px;box-shadow:var(--shadow-1);
  border:1px solid var(--line);transition:all .18s ease;
}
.step-card:hover{box-shadow:var(--shadow-2);transform:translateY(-2px);border-color:var(--stroke);}
.step-num{
  width:36px;height:36px;border-radius:10px;background:var(--brand-light);color:var(--brand);
  display:inline-flex;align-items:center;justify-content:center;font-weight:700;font-size:15px;margin-bottom:16px;
}
.step-card h3{font-size:17px;margin-bottom:8px;}
.step-card p{font-size:14px;color:var(--text-2);margin:0;line-height:1.75;}

/* ---------- FAQ ---------- */
.faq-list{display:grid;gap:12px;}
.faq-item{background:var(--surface);border:1px solid var(--line);border-radius:12px;overflow:hidden;transition:border-color .18s ease;}
.faq-item[open]{border-color:var(--brand);}
.faq-item summary{
  list-style:none;cursor:pointer;display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:18px 22px;font-size:16px;font-weight:600;color:var(--text);min-height:56px;
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary:hover{color:var(--brand);}
.faq-icon{
  flex:none;width:26px;height:26px;border-radius:50%;background:var(--brand-mist);color:var(--brand);
  display:inline-flex;align-items:center;justify-content:center;font-size:12px;
}
.faq-item[open] .faq-icon{background:var(--brand);color:#fff;}
.faq-body{padding:0 22px 20px;font-size:15px;line-height:1.9;color:var(--text-2);}

/* ---------- CTA ---------- */
.cta-band{
  background:var(--brand-light);border-radius:var(--radius-lg);padding:56px 40px;text-align:center;
  border:1px solid rgba(29,78,137,.12);
}
.cta-band h2{font-size:26px;margin-bottom:12px;}
.cta-band p{font-size:15px;color:var(--text-2);max-width:640px;margin:0 auto 26px;}
.cta-actions{display:flex;align-items:center;justify-content:center;gap:20px;flex-wrap:wrap;}

/* ---------- related channels ---------- */
.related-pills{display:flex;flex-wrap:wrap;gap:14px;}
.related-pills a{
  display:inline-flex;align-items:center;gap:8px;padding:11px 22px;border-radius:999px;
  background:var(--surface);border:1px solid var(--stroke);color:var(--text-2);font-size:14px;font-weight:500;
  transition:all .18s ease;min-height:44px;
}
.related-pills a:hover{border-color:var(--brand);color:var(--brand);background:var(--brand-mist);}

/* ---------- footer ---------- */
.site-footer{background:var(--band);border-top:1px solid var(--line);padding:64px 0 0;}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:40px;padding-bottom:48px;}
.footer-brand .logo{margin-bottom:16px;}
.footer-desc{font-size:14px;color:var(--text-2);line-height:1.85;max-width:320px;margin:0;}
.footer-col h3{font-size:15px;font-weight:600;margin-bottom:16px;color:var(--text);}
.footer-links li{margin-bottom:10px;}
.footer-links a{font-size:14px;color:var(--text-2);}
.footer-links a:hover{color:var(--brand);text-decoration:underline;text-underline-offset:4px;}
.footer-contact li{display:flex;gap:10px;font-size:14px;color:var(--text-2);margin-bottom:12px;line-height:1.7;}
.footer-contact i{color:var(--brand);margin-top:5px;font-size:13px;}
.footer-bottom{
  border-top:1px solid var(--stroke);padding:20px 0;display:flex;justify-content:space-between;gap:16px;
  flex-wrap:wrap;font-size:13px;color:var(--text-3);
}

/* ---------- responsive ---------- */
@media (max-width:1024px){
  .hero-grid{grid-template-columns:1fr;gap:36px;padding:44px 0 52px;}
  .category-hero h1{font-size:34px;}
  .section{padding:64px 0;}
  .topic-grid{grid-template-columns:1fr;column-gap:0;}
  .step-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
  .brand-tools .tool-link span{display:none;}
}
@media (max-width:768px){
  .container{padding:0 20px;}
  .brand-tools{display:none;}
  .nav-toggle{display:inline-flex;align-items:center;justify-content:center;}
  .channel-bar{position:static;}
  .section{padding:52px 0;}
  .section-head h2{font-size:22px;}
  .notice-band{padding:32px 24px;}
  .cta-band{padding:40px 24px;}
  .cta-band h2{font-size:22px;}
}
@media (max-width:520px){
  .container{padding:0 16px;}
  .logo-text{font-size:16px;}
  .category-hero h1{font-size:27px;letter-spacing:0;}
  .hero-lead{font-size:15px;}
  .btn{width:100%;}
  .hero-actions{gap:10px;}
  .hero-marks{gap:14px;}
  .hero-mark{font-size:13px;}
  .hero-float{right:12px;bottom:12px;padding:12px 16px;min-width:140px;}
  .hero-float .num{font-size:20px;}
  .step-grid{grid-template-columns:1fr;}
  .topic-item{padding:22px 0;}
  .faq-item summary{padding:16px 16px;font-size:15px;}
  .faq-body{padding:0 16px 18px;font-size:14px;}
  .footer-grid{grid-template-columns:1fr;gap:28px;}
  .footer-bottom{flex-direction:column;gap:8px;}
  .notice-band .btn-light{width:100%;justify-content:center;}
}

/* roulang page: category4 */
/* ===================== 1. 设计变量 ===================== */
:root{
  --brand:#1D4E89;
  --brand-dark:#143A66;
  --brand-light:#E8F0FA;
  --brand-mist:#F3F7FC;
  --accent:#F2792F;
  --accent-light:#FDF0E6;
  --cool:#12868C;
  --cool-light:#E4F3F3;
  --bg:#F7F9FC;
  --surface:#FFFFFF;
  --band:#EDF2F9;
  --line:#E2E9F3;
  --border:#D6E0EE;
  --text:#1B2A3F;
  --text-2:#5A6B80;
  --text-3:#8A98AB;
  --success:#2F9E6E;
  --warn:#C8791B;
  --r-card:16px;
  --r-banner:20px;
  --r-btn:10px;
  --sh-1:0 2px 8px rgba(20,58,102,.06);
  --sh-2:0 12px 28px rgba(20,58,102,.12);
  --font:"PingFang SC","Microsoft YaHei","Source Han Sans SC","Noto Sans SC",system-ui,-apple-system,sans-serif;
  --num:Inter,-apple-system,"PingFang SC",sans-serif;
}

/* ===================== 2. 基础重置 ===================== */
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:var(--font);
  font-size:16px;
  line-height:1.85;
  color:var(--text);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
  -moz-osx-font-smoothing:grayscale;
}
main{display:block;}
img{max-width:100%;display:block;height:auto;}
a{color:var(--brand);text-decoration:none;transition:color .18s ease;}
a:hover{color:var(--brand-dark);}
ul,ol{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4,p,figure{margin:0;}
button{font-family:inherit;font-size:inherit;color:inherit;}
:focus-visible{outline:3px solid rgba(29,78,137,.35);outline-offset:2px;border-radius:4px;}

/* ===================== 3. 容器与通用 ===================== */
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px;}
.section{padding:88px 0;}
.section-tight{padding:64px 0;}
.section-head{max-width:760px;margin-bottom:40px;}
.section-head h2{font-size:28px;line-height:1.35;font-weight:700;color:var(--text);letter-spacing:-.2px;}
.section-head p{margin-top:14px;font-size:15.5px;line-height:1.85;color:var(--text-2);}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  padding:5px 14px;border-radius:999px;
  background:var(--accent-light);color:var(--accent);
  font-size:13px;font-weight:600;letter-spacing:.2px;
  margin-bottom:18px;
}
.eyebrow-cool{background:var(--cool-light);color:var(--cool);}

/* ===================== 4. 按钮 ===================== */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:46px;padding:12px 26px;border-radius:var(--r-btn);
  font-size:15px;font-weight:600;line-height:1.4;
  border:1.5px solid transparent;cursor:pointer;
  transition:transform .18s ease,background-color .18s ease,box-shadow .18s ease,color .18s ease,border-color .18s ease;
}
.btn-primary{background:var(--brand);color:#fff;}
.btn-primary:hover{background:var(--brand-dark);color:#fff;transform:translateY(-1px);box-shadow:0 10px 22px rgba(20,58,102,.18);}
.btn-primary:active{transform:translateY(0);box-shadow:none;}
.btn-ghost{background:transparent;color:var(--brand);border-color:var(--brand);}
.btn-ghost:hover{background:var(--brand-light);color:var(--brand-dark);transform:translateY(-1px);}
.btn-ghost:active{transform:translateY(0);}
.btn-light{background:#fff;color:var(--brand);}
.btn-light:hover{background:#EFF5FD;color:var(--brand-dark);transform:translateY(-1px);box-shadow:0 10px 22px rgba(0,0,0,.16);}
.btn-light:active{transform:translateY(0);box-shadow:none;}

.text-link{
  display:inline-flex;align-items:center;gap:8px;
  margin-top:20px;font-size:14px;font-weight:600;color:var(--brand);
}
.text-link i{font-size:12px;transition:transform .18s ease;}
.text-link:hover{color:var(--brand-dark);text-decoration:underline;text-underline-offset:4px;}
.text-link:hover i{transform:translateX(4px);}

/* ===================== 5. 顶部导航 ===================== */
.site-header{background:var(--surface);}
.brand-row{
  display:flex;align-items:center;justify-content:space-between;
  gap:16px;height:64px;
}
.logo{display:inline-flex;align-items:center;gap:10px;}
.logo-mark{
  width:34px;height:34px;border-radius:10px;
  background:var(--brand);color:#fff;
  display:grid;place-items:center;
  font-size:17px;font-weight:700;line-height:1;
  box-shadow:0 4px 10px rgba(29,78,137,.22);
}
.logo-text{font-size:17px;font-weight:700;color:var(--text);letter-spacing:.2px;}
.brand-tools{display:flex;align-items:center;gap:22px;}
.tool-link{
  display:inline-flex;align-items:center;gap:7px;
  font-size:13.5px;color:var(--text-2);padding:6px 2px;
}
.tool-link:hover{color:var(--brand);}
.tool-link i{font-size:14px;}
.nav-toggle{
  display:none;width:44px;height:44px;border:1px solid var(--line);
  border-radius:10px;background:var(--surface);
  align-items:center;justify-content:center;flex-direction:column;gap:4px;
  cursor:pointer;
}
.nav-toggle span{display:block;width:18px;height:2px;border-radius:2px;background:var(--text-2);transition:transform .2s ease,opacity .2s ease;}
.nav-toggle[aria-expanded="true"] span:nth-child(1){transform:translateY(6px) rotate(45deg);}
.nav-toggle[aria-expanded="true"] span:nth-child(2){opacity:0;}
.nav-toggle[aria-expanded="true"] span:nth-child(3){transform:translateY(-6px) rotate(-45deg);}

.channel-bar{
  background:var(--band);
  border-top:1px solid var(--line);
  border-bottom:1px solid var(--line);
  position:sticky;top:0;z-index:60;
}
.channel-fade{position:relative;}
.channel-inner{
  display:flex;align-items:stretch;gap:6px;
  height:52px;overflow-x:auto;
  scrollbar-width:none;-ms-overflow-style:none;
}
.channel-inner::-webkit-scrollbar{display:none;}
.channel-link{
  position:relative;display:inline-flex;align-items:center;
  padding:0 14px;font-size:15px;font-weight:500;
  color:var(--text-2);white-space:nowrap;
  border-radius:8px 8px 0 0;
  transition:color .18s ease,background-color .18s ease;
}
.channel-link:hover{color:var(--brand);background:var(--brand-light);}
.channel-link.active{color:var(--brand);font-weight:700;}
.channel-link.active::after{
  content:'';position:absolute;left:14px;right:14px;bottom:0;
  height:2px;background:var(--brand);border-radius:2px 2px 0 0;
}

/* ===================== 6. 面页头部 / Hero ===================== */
.page-hero{
  position:relative;
  background:var(--brand-mist);
  padding:26px 0 76px;
  overflow:hidden;
}
.page-hero::after{
  content:'';position:absolute;inset:0;pointer-events:none;
  background-image:repeating-linear-gradient(135deg,rgba(29,78,137,.055) 0 1px,transparent 1px 14px);
}
.page-hero .container{position:relative;z-index:1;}

.breadcrumb{padding:0 0 8px;}
.breadcrumb ol{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--text-3);}
.breadcrumb li{display:inline-flex;align-items:center;gap:8px;}
.breadcrumb li+li::before{content:'›';color:var(--text-3);}
.breadcrumb a{color:var(--text-2);}
.breadcrumb a:hover{color:var(--brand);}

.hero-inner{display:flex;align-items:flex-start;gap:56px;margin-top:30px;}
.hero-copy{flex:1 1 600px;min-width:0;}
.hero-side{flex:0 0 320px;}
.page-hero h1{
  font-size:42px;line-height:1.25;font-weight:700;
  letter-spacing:-.5px;color:var(--text);
}
.hero-lead{
  margin-top:20px;max-width:640px;
  font-size:16px;line-height:1.9;color:var(--text-2);
}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:32px;}
.hero-marks{display:flex;flex-wrap:wrap;gap:14px 26px;margin-top:36px;}
.hero-marks li{display:inline-flex;align-items:center;gap:8px;font-size:13.5px;color:var(--text-2);}
.hero-marks i{color:var(--cool);font-size:15px;}

.hero-side-card{
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--r-card);
  padding:26px;
  box-shadow:var(--sh-1);
}
.side-kicker{font-size:13px;font-weight:700;color:var(--brand);letter-spacing:.4px;}
.side-list{margin-top:18px;display:grid;gap:14px;}
.side-list li{display:flex;gap:12px;font-size:14px;line-height:1.7;color:var(--text-2);}
.side-list span{
  flex:0 0 auto;width:24px;height:24px;border-radius:8px;
  background:var(--brand-light);color:var(--brand);
  font-family:var(--num);font-size:11px;font-weight:700;
  display:grid;place-items:center;
}

/* ===================== 7. 三列要点卡 ===================== */
.trio-grid{margin:0 -12px;}
.trio-grid > .cell{padding:0 12px;margin-bottom:24px;}
.trio-card{
  position:relative;height:100%;
  display:flex;flex-direction:column;
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--r-card);
  padding:32px 26px 26px;
  box-shadow:var(--sh-1);
  overflow:hidden;
  transition:transform .18s ease,box-shadow .18s ease,border-color .18s ease;
}
.trio-card::before{
  content:'';position:absolute;left:0;right:0;top:0;height:4px;
  background:linear-gradient(90deg,var(--brand),var(--cool));
}
.trio-card:hover{transform:translateY(-2px);box-shadow:var(--sh-2);border-color:var(--border);}
.trio-tag{
  align-self:flex-start;
  display:inline-block;padding:3px 12px;border-radius:999px;
  background:var(--brand-light);color:var(--brand);
  font-size:12.5px;font-weight:600;letter-spacing:.2px;margin-bottom:14px;
}
.trio-card h3{font-size:20px;font-weight:600;color:var(--text);line-height:1.5;}
.trio-points{margin-top:16px;display:grid;gap:10px;flex:1 1 auto;}
.trio-points li{
  position:relative;padding-left:18px;
  font-size:14.5px;line-height:1.75;color:var(--text-2);
}
.trio-points li::before{
  content:'';position:absolute;left:0;top:.66em;
  width:6px;height:6px;border-radius:2px;
  background:var(--brand);opacity:.5;
}

/* ===================== 8. FAQ 手风琴 ===================== */
.faq-wrap{max-width:880px;}
.faq-list{display:grid;gap:12px;}
.faq-item{
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:12px;
  box-shadow:var(--sh-1);
  overflow:hidden;
  transition:border-color .2s ease,box-shadow .2s ease;
}
.faq-item.is-open{border-color:var(--brand);box-shadow:0 10px 24px rgba(20,58,102,.1);}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:20px;
  padding:20px 24px;background:none;border:0;text-align:left;
  font-size:16px;font-weight:600;line-height:1.6;color:var(--text);
  cursor:pointer;transition:color .18s ease;
}
.faq-q:hover{color:var(--brand);}
.faq-icon{position:relative;flex:0 0 auto;width:18px;height:18px;color:var(--brand);}
.faq-icon::before,.faq-icon::after{
  content:'';position:absolute;background:currentColor;border-radius:2px;
  transition:transform .2s ease;
}
.faq-icon::before{left:0;top:8px;width:18px;height:2px;}
.faq-icon::after{left:8px;top:0;width:2px;height:18px;}
.faq-item.is-open .faq-icon::after{transform:scaleY(0);}
.faq-a{max-height:0;overflow:hidden;transition:max-height .24s ease;}
.faq-a-inner{padding:0 24px 22px;font-size:15px;line-height:1.9;color:var(--text-2);}
.faq-a-inner p + p{margin-top:14px;}

/* ===================== 9. 反馈图文区 ===================== */
.feedback-panel{
  display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1.1fr);
  gap:48px;align-items:center;
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--r-banner);
  padding:36px;
  box-shadow:var(--sh-1);
}
.feedback-media{border-radius:14px;overflow:hidden;background:var(--brand-light);}
.feedback-media img{width:100%;aspect-ratio:4/3;object-fit:cover;transition:transform .3s ease;}
.feedback-panel:hover .feedback-media img{transform:scale(1.03);}
.feedback-body h2{font-size:26px;line-height:1.4;font-weight:700;color:var(--text);letter-spacing:-.2px;}
.feedback-body p{margin-top:16px;font-size:15px;line-height:1.9;color:var(--text-2);}
.feedback-list{margin-top:20px;display:grid;gap:10px;}
.feedback-list li{position:relative;padding-left:20px;font-size:14.5px;line-height:1.75;color:var(--text-2);}
.feedback-list li::before{
  content:'';position:absolute;left:0;top:.68em;
  width:7px;height:7px;border-radius:2px;background:var(--cool);
}
.feedback-body .btn{margin-top:26px;}

/* ===================== 10. 底部 CTA 带 ===================== */
.cta-band{
  position:relative;
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;
  gap:32px;
  padding:56px 48px;
  border-radius:var(--r-banner);
  color:#fff;
  overflow:hidden;
  background:
    linear-gradient(135deg,rgba(20,58,102,.95),rgba(29,78,137,.9)),
    url(/assets/images/backpic/back-2.webp) center/cover no-repeat;
}
.cta-text{flex:1 1 420px;min-width:0;}
.cta-band h2{font-size:26px;line-height:1.4;font-weight:700;letter-spacing:-.2px;color:#fff;}
.cta-band p{margin-top:14px;font-size:15px;line-height:1.9;color:rgba(255,255,255,.8);max-width:600px;}
.cta-actions{display:flex;flex-wrap:wrap;align-items:center;gap:20px;}
.cta-link{
  display:inline-flex;align-items:center;gap:8px;
  font-size:14.5px;font-weight:600;color:#fff;
  border-bottom:1px solid rgba(255,255,255,.4);padding-bottom:2px;
}
.cta-link:hover{color:#fff;border-bottom-color:#fff;}

/* ===================== 11. 继续浏览胶囊 ===================== */
.more-channels{padding:24px 0 88px;}
.more-title{font-size:18px;font-weight:600;color:var(--text);margin-bottom:20px;}
.pill-row{display:flex;flex-wrap:wrap;gap:12px;}
.pill-link{
  display:inline-flex;align-items:center;
  min-height:44px;padding:10px 22px;
  border-radius:999px;
  background:var(--surface);
  border:1px solid var(--border);
  font-size:14.5px;font-weight:500;color:var(--text-2);
  transition:color .18s ease,border-color .18s ease,background-color .18s ease,transform .18s ease;
}
.pill-link:hover{
  color:var(--brand);border-color:var(--brand);background:var(--brand-light);
  transform:translateY(-2px);
}
.pill-link:active{transform:translateY(0);}

/* ===================== 12. 页脚 ===================== */
.site-footer{background:var(--band);border-top:1px solid var(--line);padding:64px 0 0;}
.footer-grid{
  display:grid;
  grid-template-columns:1.4fr 1fr 1fr 1.2fr;
  gap:40px;
}
.footer-brand .logo{margin-bottom:16px;}
.footer-desc{font-size:14px;line-height:1.85;color:var(--text-2);max-width:320px;}
.footer-col h3{font-size:15px;font-weight:600;color:var(--text);margin-bottom:16px;}
.footer-links{display:grid;gap:10px;}
.footer-links a{font-size:14px;color:var(--text-2);}
.footer-links a:hover{color:var(--brand);text-decoration:underline;text-underline-offset:4px;}
.footer-contact{display:grid;gap:12px;}
.footer-contact li{display:flex;gap:10px;font-size:13.5px;line-height:1.7;color:var(--text-2);}
.footer-contact i{color:var(--brand);margin-top:4px;font-size:13px;}
.footer-bottom{
  margin-top:48px;padding:20px 0;
  border-top:1px solid var(--border);
  display:flex;flex-wrap:wrap;justify-content:space-between;gap:12px;
  font-size:13px;color:var(--text-3);
}

/* ===================== 13. 响应式 ===================== */
@media (max-width:1024px){
  .container{padding:0 20px;}
  .section{padding:64px 0;}
  .page-hero{padding:22px 0 60px;}
  .page-hero h1{font-size:34px;}
  .hero-inner{flex-direction:column;gap:32px;}
  .hero-side{flex:0 0 auto;width:100%;max-width:460px;}
  .feedback-panel{grid-template-columns:1fr;gap:28px;padding:28px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
  .cta-band{padding:44px 32px;}
  .more-channels{padding:16px 0 64px;}
}

@media (max-width:768px){
  .section-head h2{font-size:22px;}
  .section-head{margin-bottom:28px;}
  .hero-actions .btn{flex:1 1 100%;}
  .cta-band h2{font-size:22px;}
  .cta-actions .btn{width:100%;}
  .feedback-body h2{font-size:22px;}
  .trio-card{padding:28px 20px 22px;}
}

@media (max-width:640px){
  .container{padding:0 16px;}
  .brand-tools{display:none;}
  .nav-toggle{display:inline-flex;}
  .channel-bar{
    max-height:0;overflow:hidden;border-bottom-width:0;
    transition:max-height .28s ease;
  }
  .channel-bar.is-open{max-height:460px;border-bottom-width:1px;}
  .channel-inner{
    flex-direction:column;align-items:stretch;
    height:auto;padding:10px 0;gap:2px;overflow:visible;
  }
  .channel-link{
    border-radius:8px;padding:12px 14px;min-height:44px;font-size:15px;
  }
  .channel-link.active::after{display:none;}
  .channel-link.active{background:var(--brand-light);}
  .page-hero{padding:18px 0 48px;}
  .page-hero h1{font-size:28px;letter-spacing:-.2px;}
  .hero-lead{font-size:15px;}
  .hero-marks{gap:10px 18px;margin-top:28px;}
  .section{padding:48px 0;}
  .trio-grid{margin:0;}
  .trio-grid > .cell{padding:0;}
  .faq-q{padding:18px 18px;font-size:15px;gap:14px;}
  .faq-a-inner{padding:0 18px 20px;font-size:14.5px;}
  .feedback-panel{padding:20px;}
  .cta-band{padding:36px 22px;border-radius:16px;}
  .more-channels{padding:12px 0 56px;}
  .pill-link{width:100%;justify-content:center;}
  .footer-grid{grid-template-columns:1fr;gap:28px;}
  .site-footer{padding-top:48px;}
  .footer-bottom{margin-top:32px;flex-direction:column;gap:8px;}
}