/* roulang page: index */
:root{
  --brand:#2F6FDE;
  --brand-dark:#2860C6;
  --brand-soft:rgba(47,111,222,.08);
  --brand-ring:rgba(47,111,222,.25);
  --mint:#1FA98E;
  --mint-soft:rgba(31,169,142,.10);
  --sand:#F29A4A;
  --sand-soft:rgba(242,154,74,.12);
  --bg:#F6F9FD;
  --bg-alt:#EDF3FA;
  --card:#FFFFFF;
  --title:#0B1F3A;
  --text:#43566F;
  --muted:#7A8CA3;
  --border:#DDE7F2;
  --r-sm:12px;
  --r-md:16px;
  --r-lg:20px;
  --shadow:0 10px 30px rgba(21,55,110,.08);
  --shadow-hover:0 14px 36px rgba(21,55,110,.13);
  --sec-y:72px;
}
*{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:"Noto Sans SC","PingFang SC","Microsoft YaHei","Hiragino Sans GB",system-ui,sans-serif;
  font-size:16px;
  line-height:1.8;
  -webkit-font-smoothing:antialiased;
}
a{color:var(--brand);text-decoration:none;transition:color .2s ease;}
a:hover{color:var(--brand-dark);}
img{max-width:100%;display:block;}
h1,h2,h3,h4{color:var(--title);margin:0 0 14px;font-weight:700;line-height:1.25;}
h1{font-size:clamp(32px,4.2vw,52px);font-weight:800;line-height:1.15;}
h2{font-size:clamp(26px,3vw,36px);}
h3{font-size:21px;}
p{margin:0 0 16px;}
ul{margin:0 0 16px;padding-left:0;list-style:none;}
button{font-family:inherit;}
.container-x{width:100%;max-width:1200px;margin:0 auto;padding:0 20px;}
@media (min-width:1400px){.container-x{max-width:1320px;}}
.section{padding:var(--sec-y) 0;}
.section-alt{background:var(--bg-alt);}
.sec-head{margin-bottom:36px;}
.sec-head .eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:14px;font-weight:600;color:var(--brand);
  background:var(--brand-soft);border-radius:999px;padding:6px 14px;margin-bottom:14px;
}
.sec-head h2{position:relative;padding-left:18px;margin-bottom:10px;}
.sec-head h2::before{
  content:"";position:absolute;left:0;top:6px;bottom:6px;width:4px;border-radius:4px;
  background:var(--brand);
}
.sec-head p{color:var(--muted);max-width:760px;margin:0;}
.sec-head-row{display:flex;align-items:flex-end;justify-content:space-between;gap:20px;flex-wrap:wrap;}

/* 按钮 */
.btn-x{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 24px;border-radius:var(--r-sm);
  font-size:16px;font-weight:600;border:1.5px solid transparent;cursor:pointer;
  transition:all .22s ease;white-space:nowrap;
}
.btn-x:focus-visible{outline:none;box-shadow:0 0 0 3px var(--brand-ring);}
.btn-brand{background:var(--brand);color:#fff;}
.btn-brand:hover{background:var(--brand-dark);color:#fff;transform:translateY(-2px);}
.btn-brand:active{transform:translateY(0);}
.btn-ghost{background:#fff;color:var(--brand);border-color:var(--brand);}
.btn-ghost:hover{background:var(--brand-soft);color:var(--brand-dark);transform:translateY(-2px);}
.btn-quiet{background:transparent;color:var(--brand);border:none;padding:0 4px;height:auto;text-decoration:underline;text-underline-offset:4px;}
.btn-quiet:hover{color:var(--brand-dark);}
.btn-sm-x{height:40px;padding:0 18px;font-size:15px;}
.btn-x[disabled],.btn-x.is-disabled{opacity:.5;pointer-events:none;transform:none;}

.badge-x{
  display:inline-flex;align-items:center;gap:6px;
  padding:4px 12px;border-radius:999px;font-size:13px;font-weight:600;line-height:1.6;
}
.badge-blue{background:var(--brand-soft);color:var(--brand);}
.badge-mint{background:var(--mint-soft);color:var(--mint);}
.badge-sand{background:var(--sand-soft);color:#C9741F;}

/* 顶部导航 */
.site-header{position:sticky;top:0;z-index:1030;background:#fff;border-bottom:1px solid var(--border);}
.brand-bar{
  display:flex;align-items:center;height:56px;
  transition:height .25s ease,opacity .25s ease;overflow:hidden;background:#fff;
}
.brand-inner{display:flex;align-items:center;justify-content:space-between;gap:16px;width:100%;}
.logo{display:flex;align-items:center;gap:10px;color:var(--title);font-weight:800;font-size:19px;letter-spacing:.2px;}
.logo:hover{color:var(--title);}
.logo-mark{
  width:32px;height:32px;border-radius:10px;flex:0 0 auto;
  background:linear-gradient(135deg,var(--brand),#5C93F0);
  color:#fff;font-size:17px;font-weight:800;
  display:flex;align-items:center;justify-content:center;
}
.logo-text{white-space:nowrap;}
.brand-actions{display:flex;align-items:center;gap:10px;}
.search-btn{
  display:inline-flex;align-items:center;gap:8px;height:40px;padding:0 16px;
  border:1px solid var(--border);border-radius:999px;background:#fff;color:var(--muted);font-size:14px;
  transition:all .2s ease;cursor:pointer;
}
.search-btn:hover{border-color:var(--brand);color:var(--brand);}
.hamburger{
  width:44px;height:44px;border:1px solid var(--border);border-radius:12px;background:#fff;
  display:none;align-items:center;justify-content:center;flex-direction:column;gap:4px;cursor:pointer;
}
.hamburger span{display:block;width:18px;height:2px;background:var(--title);border-radius:2px;}

.channel-bar{
  height:44px;background:#fff;border-top:1px solid var(--border);
  transition:height .25s ease,background .25s ease;
}
.site-header.is-scrolled .brand-bar{height:0;opacity:0;}
.site-header.is-scrolled .channel-bar{
  height:56px;background:rgba(255,255,255,.96);
  -webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);
  box-shadow:0 6px 18px rgba(21,55,110,.06);
}
.channel-inner{display:flex;align-items:center;justify-content:space-between;gap:18px;height:100%;}
.channel-nav{display:flex;align-items:center;gap:4px;overflow-x:auto;scrollbar-width:none;height:100%;}
.channel-nav::-webkit-scrollbar{display:none;}
.channel-link{
  position:relative;display:inline-flex;align-items:center;height:100%;
  padding:0 16px;font-size:15px;font-weight:600;color:var(--text);white-space:nowrap;
}
.channel-link:hover{color:var(--brand);}
.channel-link::after{
  content:"";position:absolute;left:16px;right:16px;bottom:0;height:3px;border-radius:3px 3px 0 0;
  background:transparent;transition:background .2s ease;
}
.channel-link.active{color:var(--brand);}
.channel-link.active::after{background:var(--brand);}
.channel-tags{display:flex;align-items:center;gap:10px;font-size:14px;color:var(--muted);white-space:nowrap;}
.channel-tags .tag-link{color:var(--muted);}
.channel-tags .tag-link:hover{color:var(--brand);}

/* Hero */
.hero{
  position:relative;overflow:hidden;
  background:linear-gradient(180deg,#F2F7FF 0%,#F6F9FD 78%);
  padding:64px 0 72px;
}
.hero::before{
  content:"";position:absolute;top:-160px;right:-120px;width:520px;height:520px;border-radius:50%;
  background:radial-gradient(circle,rgba(47,111,222,.16),rgba(47,111,222,0) 68%);
}
.hero::after{
  content:"";position:absolute;left:0;right:0;bottom:0;height:220px;
  background-image:radial-gradient(rgba(47,111,222,.14) 1px,transparent 1px);
  background-size:22px 22px;opacity:.5;pointer-events:none;
  -webkit-mask-image:linear-gradient(180deg,transparent,#000);mask-image:linear-gradient(180deg,transparent,#000);
}
.hero-inner{position:relative;z-index:2;display:grid;grid-template-columns:7fr 5fr;gap:48px;align-items:center;}
.hero h1{margin-bottom:20px;}
.hero h1 .hl{color:var(--brand);}
.hero-sub{font-size:17px;color:var(--text);max-width:600px;margin-bottom:26px;}
.hero-points{display:flex;flex-wrap:wrap;gap:10px 22px;margin-bottom:30px;}
.hero-points li{display:flex;align-items:center;gap:8px;font-size:15px;color:var(--text);}
.hero-points li::before{
  content:"";width:18px;height:18px;border-radius:50%;flex:0 0 auto;
  background:var(--mint-soft);
  border:2px solid var(--mint);
}
.hero-cta{display:flex;flex-wrap:wrap;gap:14px;align-items:center;}
.hero-visual{position:relative;}
.hero-img-wrap{
  border-radius:var(--r-lg);overflow:hidden;border:1px solid var(--border);
  box-shadow:var(--shadow);background:#fff;
}
.hero-img-wrap img{width:100%;aspect-ratio:4/3;object-fit:cover;}
.float-card{
  position:absolute;left:-18px;bottom:26px;background:#fff;border:1px solid var(--border);
  border-radius:var(--r-md);box-shadow:var(--shadow-hover);padding:16px 18px;min-width:210px;
}
.float-card .fc-label{font-size:13px;color:var(--muted);margin-bottom:4px;}
.float-card .fc-value{font-size:20px;font-weight:800;color:var(--title);margin-bottom:8px;}
.float-card .fc-bar{height:6px;border-radius:999px;background:var(--bg-alt);overflow:hidden;}
.float-card .fc-bar i{display:block;height:100%;width:88%;border-radius:999px;background:linear-gradient(90deg,var(--brand),var(--mint));}
.float-chip{
  position:absolute;top:20px;right:-14px;background:#fff;border:1px solid var(--border);
  border-radius:999px;box-shadow:var(--shadow);padding:8px 16px;font-size:13px;font-weight:600;color:var(--mint);
  display:flex;align-items:center;gap:8px;
}
.float-chip::before{content:"";width:8px;height:8px;border-radius:50%;background:var(--mint);}

/* 卖点编号轴 */
.axis{display:grid;grid-template-columns:repeat(3,1fr);gap:28px;position:relative;}
.axis::before{
  content:"";position:absolute;left:0;right:0;top:34px;height:1px;background:var(--border);
}
.axis-item{position:relative;padding-top:0;}
.axis-num{
  position:relative;z-index:2;display:flex;align-items:center;justify-content:center;
  width:68px;height:68px;border-radius:50%;background:#fff;border:1px solid var(--border);
  font-size:20px;font-weight:800;color:var(--brand);box-shadow:var(--shadow);margin-bottom:22px;
}
.axis-icon{
  position:absolute;left:52px;top:22px;z-index:3;width:44px;height:44px;border-radius:14px;
  background:var(--brand-soft);color:var(--brand);display:flex;align-items:center;justify-content:center;
  font-size:18px;border:3px solid #fff;
}
.axis-item h3{font-size:22px;margin-bottom:10px;}
.axis-item p{color:var(--text);margin-bottom:12px;}
.axis-item .axis-link{font-size:15px;font-weight:600;text-decoration:underline;text-underline-offset:4px;}

/* 场景演示 */
.scene-grid{display:grid;grid-template-columns:5fr 7fr;gap:44px;align-items:center;}
.scene-img{border-radius:var(--r-md);overflow:hidden;border:1px solid var(--border);box-shadow:var(--shadow);background:#fff;}
.scene-img img{width:100%;aspect-ratio:4/3;object-fit:cover;}
.steps{position:relative;padding-left:8px;}
.step{position:relative;padding:0 0 30px 54px;}
.step:last-child{padding-bottom:0;}
.step::before{
  content:"";position:absolute;left:17px;top:34px;bottom:0;width:2px;background:var(--border);
}
.step:last-child::before{display:none;}
.step-num{
  position:absolute;left:0;top:0;width:36px;height:36px;border-radius:12px;
  background:var(--brand);color:#fff;font-weight:700;font-size:15px;
  display:flex;align-items:center;justify-content:center;
}
.step h3{font-size:19px;margin-bottom:6px;}
.step p{color:var(--text);font-size:15px;margin-bottom:8px;}
.step .step-link{font-size:14px;font-weight:600;text-decoration:underline;text-underline-offset:4px;}

/* 卡片 */
.card-x{
  background:var(--card);border:1px solid var(--border);border-radius:var(--r-md);
  overflow:hidden;height:100%;display:flex;flex-direction:column;
  transition:transform .25s ease,box-shadow .25s ease,border-color .25s ease;
}
.card-x:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover);border-color:#CFE0F5;}
.card-cover{width:100%;aspect-ratio:16/9;object-fit:cover;background:var(--bg-alt);}
.card-body-x{padding:20px 22px 22px;display:flex;flex-direction:column;flex:1;}
.card-title-x{
  font-size:18px;margin:12px 0 10px;line-height:1.5;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.card-title-x a{color:var(--title);}
.card-title-x a:hover{color:var(--brand);}
.card-desc{
  font-size:14px;color:var(--muted);margin-bottom:16px;
  display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden;
}
.card-meta{
  margin-top:auto;display:flex;align-items:center;justify-content:space-between;gap:12px;
  padding-top:14px;border-top:1px solid var(--border);font-size:13px;color:var(--muted);
}
.card-more{font-size:14px;font-weight:600;color:var(--brand);}
.empty-state{
  text-align:center;background:#fff;border:1px dashed var(--border);border-radius:var(--r-md);
  padding:56px 24px;
}
.empty-state .es-icon{
  width:56px;height:56px;border-radius:16px;background:var(--brand-soft);color:var(--brand);
  display:flex;align-items:center;justify-content:center;margin:0 auto 16px;font-size:22px;font-weight:800;
}
.empty-state p{color:var(--muted);margin-bottom:18px;}

/* 社会认同 */
.logo-wall{
  display:grid;grid-template-columns:repeat(6,1fr);gap:18px;margin-bottom:44px;
}
.logo-cell{
  height:64px;border-radius:var(--r-sm);background:#fff;border:1px solid var(--border);
  display:flex;align-items:center;justify-content:center;
  font-size:14px;font-weight:600;color:var(--muted);text-align:center;padding:0 10px;
  transition:all .25s ease;
}
.logo-cell:hover{color:var(--brand);border-color:#CFE0F5;box-shadow:var(--shadow);}
.stat-row{
  display:grid;grid-template-columns:repeat(4,1fr);gap:24px;
  background:#fff;border:1px solid var(--border);border-radius:var(--r-lg);
  padding:30px 24px;margin-bottom:44px;
}
.stat-item{text-align:center;border-right:1px solid var(--border);}
.stat-item:last-child{border-right:none;}
.stat-num{font-size:clamp(26px,3vw,34px);font-weight:800;color:var(--title);line-height:1.2;}
.stat-num span{font-size:16px;color:var(--brand);margin-left:2px;}
.stat-label{font-size:14px;color:var(--muted);margin-top:6px;}
.quote-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;}
.quote-card{
  background:#fff;border:1px solid var(--border);border-radius:var(--r-md);padding:26px 24px;
  position:relative;transition:transform .25s ease,box-shadow .25s ease;
}
.quote-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover);}
.quote-mark{
  font-size:44px;line-height:1;color:var(--brand-soft);font-weight:800;margin-bottom:6px;font-family:Georgia,serif;
}
.quote-text{font-size:15px;color:var(--text);margin-bottom:20px;}
.quote-user{display:flex;align-items:center;gap:12px;}
.avatar{
  width:42px;height:42px;border-radius:50%;background:var(--bg-alt);color:var(--brand);
  display:flex;align-items:center;justify-content:center;font-weight:700;font-size:15px;flex:0 0 auto;
}
.quote-name{font-size:15px;font-weight:700;color:var(--title);}
.quote-role{font-size:13px;color:var(--muted);}

/* FAQ */
.accordion-x .accordion-item{
  border:1px solid var(--border);border-radius:14px;margin-bottom:12px;overflow:hidden;background:#fff;
}
.accordion-x .accordion-button{
  font-size:17px;font-weight:600;color:var(--title);background:#fff;padding:18px 22px;
  box-shadow:none;border-left:4px solid transparent;
}
.accordion-x .accordion-button:not(.collapsed){
  color:var(--brand);background:#fff;box-shadow:none;border-left-color:var(--brand);
}
.accordion-x .accordion-button:focus{box-shadow:none;border-color:var(--border);}
.accordion-x .accordion-button::after{
  width:16px;height:16px;background-size:16px;filter:grayscale(1) opacity(.5);
}
.accordion-x .accordion-button:not(.collapsed)::after{filter:none;}
.accordion-x .accordion-body{
  font-size:15px;line-height:1.8;color:var(--text);padding:0 22px 20px;border-left:4px solid transparent;
}
.accordion-x .accordion-button:not(.collapsed)+.accordion-body{border-left-color:var(--brand);}

/* CTA 区块 */
.cta-band{
  background:linear-gradient(120deg,#2F6FDE 0%,#3C7CE6 55%,#1FA98E 130%);
  border-radius:var(--r-lg);padding:48px;color:#fff;position:relative;overflow:hidden;
}
.cta-band::after{
  content:"";position:absolute;right:-60px;top:-60px;width:280px;height:280px;border-radius:50%;
  background:rgba(255,255,255,.10);
}
.cta-band h2{color:#fff;margin-bottom:12px;}
.cta-band p{color:rgba(255,255,255,.88);max-width:640px;margin-bottom:26px;}
.cta-band .btn-white{background:#fff;color:var(--brand);}
.cta-band .btn-white:hover{background:#F2F7FF;color:var(--brand-dark);transform:translateY(-2px);}
.cta-band .btn-line{background:transparent;color:#fff;border-color:rgba(255,255,255,.7);}
.cta-band .btn-line:hover{background:rgba(255,255,255,.14);color:#fff;transform:translateY(-2px);}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px;position:relative;z-index:2;}

/* 页脚 */
.site-footer{background:#0B1F3A;color:#C7D5E8;padding:60px 0 80px;}
.footer-grid{display:grid;grid-template-columns:2fr 1fr 1fr 1.2fr;gap:36px;margin-bottom:40px;}
.footer-brand .logo{color:#fff;margin-bottom:16px;}
.footer-brand .logo-mark{background:linear-gradient(135deg,#2F6FDE,#1FA98E);}
.footer-brand p{font-size:14px;color:#93A9C6;line-height:1.9;}
.footer-col h4{color:#fff;font-size:16px;margin-bottom:16px;}
.footer-col ul li{margin-bottom:10px;}
.footer-col a{color:#C7D5E8;font-size:14px;}
.footer-col a:hover{color:#fff;}
.footer-contact li{font-size:14px;color:#C7D5E8;margin-bottom:12px;display:flex;gap:10px;align-items:flex-start;}
.footer-contact .dot{width:6px;height:6px;border-radius:50%;background:var(--mint);margin-top:9px;flex:0 0 auto;}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.12);padding-top:22px;
  display:flex;flex-wrap:wrap;gap:10px 24px;justify-content:space-between;font-size:13px;color:#8FA5C1;
}
.footer-bottom a{color:#8FA5C1;}
.footer-bottom a:hover{color:#fff;}

/* 底部固定条 */
.fixed-cta{
  position:fixed;left:0;right:0;bottom:0;height:64px;background:#fff;z-index:1045;
  box-shadow:0 -8px 26px rgba(21,55,110,.12);
  transform:translateY(130%);transition:transform .32s ease;
  display:flex;align-items:center;
}
.fixed-cta.is-visible{transform:translateY(0);}
.fixed-cta-inner{display:flex;align-items:center;justify-content:space-between;gap:16px;width:100%;}
.fixed-cta-text{font-size:15px;font-weight:600;color:var(--title);margin:0;}
.fixed-cta-actions{display:flex;align-items:center;gap:12px;}
.fixed-cta-close{
  width:34px;height:34px;border-radius:50%;border:1px solid var(--border);background:#fff;
  color:var(--muted);font-size:16px;line-height:1;cursor:pointer;
}
.fixed-cta-close:hover{color:var(--title);border-color:#CFE0F5;}
.fixed-cta-phone{display:none;}

/* 响应式 */
@media (max-width:1199.98px){
  :root{--sec-y:56px;}
  .hero-inner{gap:36px;}
  .footer-grid{grid-template-columns:1.6fr 1fr 1fr;}
  .footer-contact{grid-column:span 3;}
}
@media (max-width:991.98px){
  :root{--sec-y:48px;}
  .hamburger{display:flex;}
  .hero-inner{grid-template-columns:1fr;gap:34px;}
  .hero{padding:44px 0 56px;}
  .hero-visual{max-width:560px;}
  .float-card{left:12px;bottom:12px;}
  .float-chip{right:12px;}
  .axis{grid-template-columns:1fr;gap:0;}
  .axis::before{left:34px;right:auto;top:0;bottom:0;width:1px;height:auto;}
  .axis-item{padding:0 0 30px 92px;}
  .axis-item:last-child{padding-bottom:0;}
  .axis-num{position:absolute;left:0;top:0;margin-bottom:0;}
  .axis-icon{left:44px;top:22px;}
  .scene-grid{grid-template-columns:1fr;gap:30px;}
  .logo-wall{grid-template-columns:repeat(3,1fr);}
  .stat-row{grid-template-columns:repeat(2,1fr);gap:24px 12px;}
  .stat-item:nth-child(2){border-right:none;}
  .stat-item:nth-child(1),.stat-item:nth-child(2){padding-bottom:20px;border-bottom:1px solid var(--border);}
  .quote-grid{grid-template-columns:1fr;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:30px;}
  .footer-contact{grid-column:span 2;}
  .cta-band{padding:36px 26px;}
  .channel-tags{display:none;}
}
@media (max-width:767.98px){
  :root{--sec-y:36px;}
  body{font-size:15px;}
  .container-x{padding:0 16px;}
  .logo{font-size:16px;}
  .logo-mark{width:28px;height:28px;border-radius:9px;font-size:15px;}
  .search-btn{display:none;}
  .card-cover{aspect-ratio:16/10;}
  .hero-cta .btn-x{flex:1 1 auto;}
  .fixed-cta-text{max-width:150px;font-size:13px;line-height:1.4;}
  .fixed-cta .btn-ghost,.fixed-cta-close{display:none;}
  .fixed-cta-phone{display:inline-flex;width:44px;height:44px;border-radius:12px;border:1.5px solid var(--brand);color:var(--brand);align-items:center;justify-content:center;}
  .footer-grid{grid-template-columns:1fr;}
  .footer-contact{grid-column:span 1;}
  .logo-wall{grid-template-columns:repeat(2,1fr);}
  .stat-row{grid-template-columns:1fr 1fr;padding:22px 16px;}
  .stat-item{border-right:none;}
  .stat-item:nth-child(odd){border-right:1px solid var(--border);}
  .stat-item:nth-child(1),.stat-item:nth-child(2){border-bottom:1px solid var(--border);padding-bottom:18px;}
}
@media (max-width:575.98px){
  h1{font-size:29px;}
  .axis-item{padding-left:76px;}
  .axis-num{width:58px;height:58px;font-size:17px;}
  .axis-icon{left:38px;top:18px;width:38px;height:38px;border-radius:12px;font-size:16px;}
  .hero-points{gap:8px 16px;}
  .hero-points li{font-size:14px;}
  .float-card{position:static;margin-top:14px;min-width:0;}
  .float-chip{position:static;margin-bottom:12px;display:inline-flex;}
  .cta-band{border-radius:16px;padding:30px 20px;}
  .fixed-cta-text{display:none;}
  .fixed-cta-inner{justify-content:flex-end;}
  .fixed-cta-actions{width:100%;justify-content:flex-end;}
}

/* roulang page: article */
:root{
  --brand:#2F6FDE;
  --brand-600:#2459b8;
  --brand-050:rgba(47,111,222,.08);
  --green:#1FA98E;
  --green-050:rgba(31,169,142,.10);
  --orange:#F29A4A;
  --orange-050:rgba(242,154,74,.12);
  --bg:#F6F9FD;
  --bg-alt:#EDF3FA;
  --card:#FFFFFF;
  --title:#0B1F3A;
  --text:#43566F;
  --muted:#7A8CA3;
  --border:#DDE7F2;
  --r-s:12px;
  --r-m:16px;
  --r-l:20px;
  --sh-1:0 10px 30px rgba(21,55,110,.08);
  --sh-2:0 14px 36px rgba(21,55,110,.13);
  --container:1200px;
}
*{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  margin:0;
  font-family:"Noto Sans SC","PingFang SC","Microsoft YaHei","Hiragino Sans GB",system-ui,-apple-system,sans-serif;
  font-size:16px;
  line-height:1.8;
  color:var(--text);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{max-width:100%;display:block;}
a{color:var(--brand);text-decoration:none;transition:color .2s ease;}
a:hover{color:var(--brand-600);}
button{font-family:inherit;}
h1,h2,h3,h4{margin:0;color:var(--title);font-weight:700;}
p{margin:0;}
ul,ol{margin:0;padding:0;list-style:none;}
.container-x{width:100%;max-width:var(--container);margin:0 auto;padding:0 20px;}
@media (min-width:1400px){.container-x{max-width:1320px;}}

/* ============ 按钮体系 ============ */
.btn-primary,
.btn-outline,
.btn-ghost,
.btn-text{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 22px;border-radius:var(--r-s);
  font-size:15px;font-weight:600;line-height:1;cursor:pointer;border:1.5px solid transparent;
  transition:background .2s ease,color .2s ease,transform .2s ease,box-shadow .2s ease,border-color .2s ease;
  white-space:nowrap;
}
.btn-primary{background:var(--brand);color:#fff;box-shadow:0 8px 18px rgba(47,111,222,.22);}
.btn-primary:hover{background:var(--brand-600);color:#fff;transform:translateY(-2px);box-shadow:0 12px 24px rgba(47,111,222,.26);}
.btn-primary:focus-visible{outline:3px solid rgba(47,111,222,.25);outline-offset:2px;}
.btn-outline{background:#fff;color:var(--brand);border-color:rgba(47,111,222,.55);}
.btn-outline:hover{background:var(--brand-050);color:var(--brand-600);transform:translateY(-2px);}
.btn-outline:focus-visible{outline:3px solid rgba(47,111,222,.25);outline-offset:2px;}
.btn-ghost{background:var(--bg-alt);color:var(--text);}
.btn-ghost:hover{background:#e2ebf7;color:var(--title);}
.btn-text{height:auto;padding:0;color:var(--brand);border-bottom:1.5px solid rgba(47,111,222,.4);border-radius:0;}
.btn-text:hover{border-bottom-color:var(--brand);}
.btn-sm{height:40px;padding:0 16px;font-size:14px;}
.btn-primary[disabled],.btn-outline[disabled]{opacity:.5;transform:none;box-shadow:none;cursor:not-allowed;}

/* ============ 顶部导航 ============ */
.site-header{position:sticky;top:0;z-index:1030;background:#fff;border-bottom:1px solid var(--border);}
.brand-row{height:56px;overflow:hidden;transition:height .25s ease,opacity .25s ease;}
.brand-inner{display:flex;align-items:center;justify-content:space-between;gap:16px;height:56px;}
.logo{display:flex;align-items:center;gap:10px;color:var(--title);font-weight:800;}
.logo:hover{color:var(--title);}
.logo-mark{
  width:34px;height:34px;border-radius:11px;flex:none;
  background:linear-gradient(135deg,#2F6FDE 0%,#1FA98E 100%);
  color:#fff;font-size:16px;font-weight:800;display:grid;place-items:center;
}
.logo-text{font-size:18px;letter-spacing:.2px;white-space:nowrap;}
.brand-actions{display:flex;align-items:center;gap:10px;}
.icon-btn{
  width:44px;height:44px;border-radius:12px;border:1px solid var(--border);background:#fff;
  color:var(--text);display:grid;place-items:center;cursor:pointer;transition:all .2s ease;
}
.icon-btn:hover{color:var(--brand);border-color:rgba(47,111,222,.4);background:var(--brand-050);}
.icon-btn:focus-visible{outline:3px solid rgba(47,111,222,.25);outline-offset:2px;}
.hamburger{display:none;}
.channel-bar{border-top:1px solid var(--border);background:rgba(255,255,255,.96);backdrop-filter:blur(10px);}
.channel-inner{display:flex;align-items:center;justify-content:space-between;gap:18px;height:44px;transition:height .25s ease;}
.channel-nav{display:flex;align-items:center;gap:2px;overflow-x:auto;scrollbar-width:none;}
.channel-nav::-webkit-scrollbar{display:none;}
.channel-link{
  position:relative;display:flex;align-items:center;height:44px;padding:0 14px;
  font-size:15px;font-weight:600;color:var(--text);white-space:nowrap;
}
.channel-link::after{
  content:"";position:absolute;left:14px;right:14px;bottom:0;height:3px;border-radius:3px 3px 0 0;
  background:transparent;transition:background .2s ease;
}
.channel-link:hover{color:var(--brand);}
.channel-link.active{color:var(--brand);}
.channel-link.active::after{background:var(--brand);}
.channel-hot{display:flex;align-items:center;gap:12px;font-size:13px;color:var(--muted);white-space:nowrap;}
.channel-hot .hot-label{color:var(--title);font-weight:600;}
.channel-hot a{color:var(--muted);}
.channel-hot a:hover{color:var(--brand);}
.header-scrolled .brand-row{height:0;opacity:0;}
.header-scrolled .channel-bar{box-shadow:0 8px 22px rgba(21,55,110,.09);}
.header-scrolled .channel-inner{height:56px;}
.search-panel{display:none;border-top:1px solid var(--border);background:#fff;padding:14px 0;}
.search-panel.open{display:block;}
.search-box{display:flex;gap:10px;}
.search-box input{
  flex:1;height:48px;border-radius:var(--r-s);border:1px solid var(--border);background:var(--bg);
  padding:0 16px;font-size:15px;color:var(--title);outline:none;transition:all .2s ease;
}
.search-box input::placeholder{color:var(--muted);}
.search-box input:focus{border-color:var(--brand);background:#fff;box-shadow:0 0 0 4px rgba(47,111,222,.12);}
.mobile-panel{display:none;border-top:1px solid var(--border);background:#fff;padding:12px 0 18px;}
.mobile-panel.open{display:block;}
.mobile-panel .m-link{
  display:flex;align-items:center;justify-content:space-between;height:48px;padding:0 4px;
  font-size:15px;font-weight:600;color:var(--text);border-bottom:1px dashed var(--border);
}
.mobile-panel .m-link.active{color:var(--brand);}
.mobile-panel .m-actions{display:flex;gap:10px;margin-top:14px;}
.mobile-panel .m-actions .btn-primary,
.mobile-panel .m-actions .btn-outline{flex:1;}

/* ============ 面包屑 ============ */
.crumb-bar{background:#fff;border-bottom:1px solid var(--border);}
.crumb{display:flex;align-items:center;gap:8px;flex-wrap:wrap;padding:14px 0;font-size:13.5px;color:var(--muted);}
.crumb li{display:flex;align-items:center;gap:8px;}
.crumb li+li::before{content:"/";color:#c3d2e4;}
.crumb a{color:var(--muted);}
.crumb a:hover{color:var(--brand);}
.crumb li[aria-current] span{color:var(--title);font-weight:600;}

/* ============ 文章头部 ============ */
.article-hero{
  position:relative;
  padding:40px 0 34px;
  background-image:linear-gradient(180deg,rgba(246,249,253,.92),rgba(237,243,250,.96)),url('/assets/images/backpic/back-2.png');
  background-size:cover;background-position:center;
  border-bottom:1px solid var(--border);
}
.hero-panel{
  background:#fff;border:1px solid var(--border);border-radius:var(--r-l);
  box-shadow:var(--sh-1);padding:28px 30px;
}
.tag-badge{
  display:inline-flex;align-items:center;gap:6px;height:28px;padding:0 12px;border-radius:999px;
  background:var(--brand-050);color:var(--brand);font-size:13px;font-weight:600;
}
.article-hero h1{
  font-size:clamp(28px,3.2vw,42px);font-weight:800;line-height:1.22;margin:14px 0 0;
  letter-spacing:-.3px;
}
.meta-row{display:flex;flex-wrap:wrap;gap:8px 20px;margin-top:16px;font-size:13.5px;color:var(--muted);}
.meta-row span{display:inline-flex;align-items:center;gap:6px;}
.meta-row .dot{width:6px;height:6px;border-radius:50%;background:var(--green);flex:none;}
.hero-lead{
  margin-top:18px;padding:16px 18px;border-radius:14px;background:var(--bg-alt);
  border-left:4px solid var(--brand);color:#3c4f68;font-size:15.5px;line-height:1.85;
}

/* ============ 文章主体布局 ============ */
.article-main{padding:48px 0 64px;}
.article-layout{display:grid;grid-template-columns:minmax(0,800px) 300px;gap:32px;justify-content:center;}
.article-panel{background:#fff;border:1px solid var(--border);border-radius:var(--r-l);box-shadow:var(--sh-1);padding:32px 36px;}

.article-body{font-size:17px;line-height:1.9;color:#3d4f68;}
.article-body>*+*{margin-top:1.2em;}
.article-body p{margin:0;}
.article-body h2{
  font-size:clamp(21px,2.2vw,26px);font-weight:700;line-height:1.4;
  padding-left:14px;border-left:4px solid var(--brand);margin-top:1.8em;
}
.article-body h3{
  font-size:19px;font-weight:700;line-height:1.5;margin-top:1.5em;position:relative;padding-left:18px;
}
.article-body h3::before{
  content:"";position:absolute;left:0;top:.62em;width:10px;height:3px;border-radius:3px;background:var(--green);
}
.article-body ul,.article-body ol{padding-left:0;}
.article-body li{position:relative;padding-left:22px;margin-top:.5em;}
.article-body ul>li::before{
  content:"";position:absolute;left:4px;top:.72em;width:8px;height:8px;border-radius:50%;
  background:var(--brand-050);border:2px solid var(--brand);
}
.article-body ol{counter-reset:num;}
.article-body ol>li{counter-increment:num;}
.article-body ol>li::before{
  content:counter(num);position:absolute;left:0;top:.32em;width:20px;height:20px;border-radius:6px;
  background:var(--brand-050);color:var(--brand);font-size:12px;font-weight:700;display:grid;place-items:center;
}
.article-body a{border-bottom:1px solid rgba(47,111,222,.35);}
.article-body a:hover{border-bottom-color:var(--brand);}
.article-body img{border-radius:14px;margin:1.4em auto;box-shadow:var(--sh-1);}
.article-body figure{margin:1.4em 0;}
.article-body figcaption{text-align:center;font-size:13.5px;color:var(--muted);margin-top:10px;}
.article-body blockquote{
  background:var(--bg-alt);border-left:4px solid var(--brand);border-radius:0 14px 14px 0;
  padding:16px 20px;color:#3c4f68;font-size:16px;
}
.article-body blockquote p{margin:0;}
.article-body table{
  width:100%;border-collapse:collapse;font-size:15px;border:1px solid var(--border);
  border-radius:12px;overflow:hidden;display:table;
}
.article-body thead th{background:var(--bg-alt);color:var(--title);font-weight:700;}
.article-body th,.article-body td{padding:12px 14px;border:1px solid var(--border);text-align:left;vertical-align:top;}
.article-body tbody tr:nth-child(even){background:#fbfdff;}
.article-body strong{color:var(--title);}
.article-body hr{border:0;border-top:1px dashed var(--border);margin:2em 0;}

.empty-state{text-align:center;padding:44px 16px;}
.empty-icon{
  width:64px;height:64px;border-radius:20px;margin:0 auto 18px;display:grid;place-items:center;
  background:var(--orange-050);color:var(--orange);font-size:28px;font-weight:800;
}
.empty-state h2{font-size:24px;margin-bottom:10px;}
.empty-state p{color:var(--muted);margin-bottom:22px;}

/* ============ 侧栏 ============ */
.article-side{position:relative;}
.side-sticky{position:sticky;top:130px;display:flex;flex-direction:column;gap:20px;}
.side-card{
  background:#fff;border:1px solid var(--border);border-radius:var(--r-m);box-shadow:var(--sh-1);
  padding:20px;
}
.side-card h3{font-size:16px;font-weight:700;margin-bottom:12px;display:flex;align-items:center;gap:8px;}
.side-card h3::before{content:"";width:4px;height:16px;border-radius:3px;background:var(--brand);}
.side-list li+li{margin-top:10px;}
.side-list a{display:block;font-size:14.5px;color:var(--text);line-height:1.65;}
.side-list a:hover{color:var(--brand);}
.side-card.accent{background:linear-gradient(160deg,#2F6FDE 0%,#2459b8 100%);border-color:transparent;color:#fff;}
.side-card.accent h3{color:#fff;}
.side-card.accent h3::before{background:rgba(255,255,255,.85);}
.side-card.accent p{font-size:14px;color:rgba(255,255,255,.86);line-height:1.75;margin-bottom:16px;}
.side-card.accent .btn-outline{background:#fff;border-color:#fff;color:var(--brand);width:100%;}
.side-card.accent .btn-outline:hover{background:rgba(255,255,255,.88);color:var(--brand-600);}
.side-note{font-size:13px;color:var(--muted);line-height:1.7;}

/* ============ 相关推荐 ============ */
.related{padding:0 0 56px;}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:16px;margin-bottom:24px;}
.section-head h2{font-size:clamp(22px,2.4vw,28px);font-weight:700;padding-left:14px;border-left:4px solid var(--brand);line-height:1.3;}
.section-head .more{font-size:14.5px;font-weight:600;}
.card-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px;}
.post-card{
  background:#fff;border:1px solid var(--border);border-radius:var(--r-m);overflow:hidden;
  box-shadow:var(--sh-1);display:flex;flex-direction:column;
  transition:transform .24s ease,box-shadow .24s ease,border-color .24s ease;
}
.post-card:hover{transform:translateY(-4px);box-shadow:var(--sh-2);border-color:#cfe0f5;}
.post-card .thumb{position:relative;aspect-ratio:16/9;overflow:hidden;background:var(--bg-alt);}
.post-card .thumb img{width:100%;height:100%;object-fit:cover;transition:transform .4s ease;}
.post-card:hover .thumb img{transform:scale(1.05);}
.post-card .badge-float{
  position:absolute;left:12px;top:12px;height:26px;padding:0 10px;border-radius:999px;
  background:rgba(255,255,255,.94);color:var(--brand);font-size:12px;font-weight:600;display:flex;align-items:center;
}
.post-card .body{padding:18px 20px 20px;display:flex;flex-direction:column;flex:1;}
.post-card h3{font-size:17px;font-weight:700;line-height:1.55;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.post-card h3 a{color:var(--title);}
.post-card h3 a:hover{color:var(--brand);}
.post-card p{
  margin-top:10px;font-size:14px;color:var(--muted);line-height:1.75;
  display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden;
}
.post-card .foot{
  margin-top:auto;padding-top:14px;display:flex;align-items:center;justify-content:space-between;
  font-size:13px;color:var(--muted);border-top:1px dashed var(--border);
}
.post-card .foot .read{color:var(--brand);font-weight:600;}

/* ============ 返回入口 ============ */
.back-block{padding:0 0 64px;}
.back-inner{
  background:var(--bg-alt);border:1px solid var(--border);border-radius:var(--r-l);
  padding:28px 30px;display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:18px;
}
.back-inner h2{font-size:20px;margin-bottom:6px;}
.back-inner p{font-size:14.5px;color:var(--muted);}
.back-actions{display:flex;gap:12px;flex-wrap:wrap;}

/* ============ 底部固定条 ============ */
.cta-bar{
  position:fixed;left:0;right:0;bottom:0;z-index:1040;background:#fff;
  box-shadow:0 -8px 24px rgba(21,55,110,.10);border-top:1px solid var(--border);
  transform:translateY(110%);transition:transform .3s ease;
}
.cta-bar.show{transform:translateY(0);}
.cta-bar-inner{display:flex;align-items:center;justify-content:space-between;gap:16px;height:64px;}
.cta-bar-text{font-size:15px;font-weight:600;color:var(--title);display:flex;align-items:center;gap:8px;}
.cta-bar-text .pulse{width:9px;height:9px;border-radius:50%;background:var(--green);flex:none;box-shadow:0 0 0 4px var(--green-050);}
.cta-bar-actions{display:flex;align-items:center;gap:10px;}
.cta-close{
  width:36px;height:36px;border-radius:10px;border:1px solid var(--border);background:#fff;color:var(--muted);
  font-size:18px;line-height:1;cursor:pointer;transition:all .2s ease;
}
.cta-close:hover{color:var(--title);background:var(--bg-alt);}
.cta-phone{display:none;}

/* ============ 页脚 ============ */
.site-footer{background:#0B1F3A;color:#c8d6e8;padding:56px 0 80px;margin-top:0;}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:36px;}
.footer-brand .logo{color:#fff;}
.footer-brand .logo:hover{color:#fff;}
.footer-brand .logo-text{color:#fff;}
.footer-brand p{margin-top:16px;font-size:14px;line-height:1.85;color:#9fb3cc;}
.footer-col h4{font-size:15px;font-weight:700;color:#fff;margin-bottom:16px;}
.footer-col li+li{margin-top:10px;}
.footer-col a{color:#a9bcd4;font-size:14px;}
.footer-col a:hover{color:#fff;}
.footer-contact li{display:flex;gap:10px;font-size:14px;color:#a9bcd4;line-height:1.7;}
.footer-contact .dot{width:6px;height:6px;border-radius:50%;background:var(--green);flex:none;margin-top:9px;}
.footer-bottom{
  margin-top:36px;padding-top:20px;border-top:1px solid rgba(255,255,255,.12);
  display:flex;flex-wrap:wrap;justify-content:space-between;gap:10px;font-size:13px;color:#8ba0ba;
}

/* ============ 响应式 ============ */
@media (max-width:1200px){
  .article-layout{grid-template-columns:minmax(0,1fr) 280px;gap:24px;}
  .channel-hot{display:none;}
}
@media (max-width:992px){
  .hamburger{display:grid;}
  .brand-actions .desk-only{display:none;}
  .article-layout{grid-template-columns:minmax(0,1fr);}
  .side-sticky{position:static;margin-top:8px;}
  .card-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px;}
  .article-panel{padding:26px 22px;}
  .hero-panel{padding:24px 20px;}
}
@media (max-width:768px){
  .article-hero{padding:28px 0 24px;}
  .article-main{padding:32px 0 44px;}
  .cta-bar-text{font-size:14px;}
  .cta-bar-actions .btn-outline{display:none;}
  .cta-phone{
    display:inline-flex;align-items:center;justify-content:center;width:44px;height:44px;border-radius:12px;
    background:var(--bg-alt);color:var(--brand);font-size:18px;
  }
}
@media (max-width:576px){
  .container-x{padding:0 16px;}
  .card-grid{grid-template-columns:minmax(0,1fr);}
  .footer-grid{grid-template-columns:1fr;}
  .cta-bar-inner{height:60px;gap:10px;}
  .cta-bar-text{font-size:13px;line-height:1.4;}
  .cta-close{display:none;}
  .article-body{font-size:16.5px;}
  .back-inner{padding:22px 18px;}
}

/* roulang page: category1 */
:root{
  --brand:#2F6FDE;
  --brand-dark:#2560c4;
  --brand-soft:rgba(47,111,222,.08);
  --brand-ring:rgba(47,111,222,.25);
  --mint:#1FA98E;
  --sand:#F29A4A;
  --bg:#F6F9FD;
  --bg-alt:#EDF3FA;
  --card:#FFFFFF;
  --ink:#0B1F3A;
  --text:#43566F;
  --muted:#7A8CA3;
  --line:#DDE7F2;
  --r-sm:12px;
  --r-md:16px;
  --r-lg:20px;
  --r-pill:999px;
  --sh-card:0 10px 30px rgba(21,55,110,.08);
  --sh-hover:0 14px 36px rgba(21,55,110,.13);
  --sh-nav:0 6px 20px rgba(21,55,110,.08);
  --sec-y:72px;
  --font:"Noto Sans SC","PingFang SC","Microsoft YaHei","Hiragino Sans GB",system-ui,-apple-system,sans-serif;
}
*{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  margin:0;
  font-family:var(--font);
  font-size:17px;
  line-height:1.8;
  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 .2s ease;}
a:hover{color:var(--brand-dark);}
h1,h2,h3,h4{color:var(--ink);margin:0;}
p{margin:0 0 1em;}
ul{margin:0;padding:0;list-style:none;}
button{font-family:inherit;}
:focus-visible{outline:3px solid var(--brand-ring);outline-offset:2px;border-radius:6px;}
.container-x{
  width:100%;
  max-width:1200px;
  margin:0 auto;
  padding:0 20px;
}
@media (min-width:1400px){.container-x{max-width:1320px;}}

/* ============ 顶部导航 ============ */
.site-header{
  position:sticky;
  top:0;
  z-index:1030;
  background:rgba(255,255,255,.98);
  border-bottom:1px solid var(--line);
}
.brand-row{
  height:56px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:20px;
  transition:height .25s ease,opacity .2s ease;
}
.logo{
  display:flex;
  align-items:center;
  gap:10px;
  font-weight:800;
  color:var(--ink);
  font-size:17px;
  letter-spacing:.2px;
  white-space:nowrap;
}
.logo:hover{color:var(--ink);}
.logo-mark{
  width:32px;height:32px;
  display:grid;place-items:center;
  border-radius:10px;
  background:linear-gradient(135deg,var(--brand),#4f8cf0);
  color:#fff;
  font-size:15px;
  font-weight:800;
  flex:none;
}
.logo-text{display:inline-block;}
.brand-actions{display:flex;align-items:center;gap:10px;}
.search-shell{
  position:relative;
  display:flex;
  align-items:center;
  background:var(--bg-alt);
  border:1px solid var(--line);
  border-radius:var(--r-pill);
  padding:0 12px;
  height:38px;
  min-width:220px;
}
.search-shell i{color:var(--muted);font-size:14px;}
.search-shell input{
  border:0;background:transparent;outline:none;
  height:100%;width:100%;
  padding:0 8px;
  font-size:14px;color:var(--ink);
}
.search-shell input::placeholder{color:var(--muted);}
.search-shell:focus-within{border-color:var(--brand);box-shadow:0 0 0 3px var(--brand-ring);}
.btn-top-ghost{
  height:38px;padding:0 14px;
  display:inline-flex;align-items:center;gap:6px;
  border-radius:var(--r-pill);
  border:1px solid var(--line);
  background:#fff;
  color:var(--text);
  font-size:14px;font-weight:600;
  transition:all .2s ease;
}
.btn-top-ghost:hover{border-color:var(--brand);color:var(--brand);background:var(--brand-soft);}
.btn-top-solid{
  height:38px;padding:0 18px;
  display:inline-flex;align-items:center;
  border-radius:var(--r-pill);
  background:var(--brand);
  color:#fff;
  font-size:14px;font-weight:700;
  border:1px solid var(--brand);
  transition:all .2s ease;
}
.btn-top-solid:hover{background:var(--brand-dark);border-color:var(--brand-dark);color:#fff;transform:translateY(-1px);}
.nav-toggle{
  display:none;
  width:42px;height:42px;
  border:1px solid var(--line);
  background:#fff;border-radius:12px;
  color:var(--ink);font-size:17px;
}
.channel-row{
  height:44px;
  display:flex;
  align-items:center;
  gap:6px;
  border-top:1px solid var(--line);
  overflow-x:auto;
  scrollbar-width:none;
}
.channel-row::-webkit-scrollbar{display:none;}
.channel-link{
  position:relative;
  height:44px;
  display:inline-flex;
  align-items:center;
  padding:0 14px;
  font-size:15px;
  font-weight:600;
  color:var(--text);
  white-space:nowrap;
}
.channel-link:hover{color:var(--brand);}
.channel-link.active{color:var(--brand);}
.channel-link.active::after{
  content:"";
  position:absolute;
  left:14px;right:14px;bottom:0;
  height:3px;
  border-radius:3px 3px 0 0;
  background:var(--brand);
}
.channel-hot{
  margin-left:auto;
  display:flex;align-items:center;gap:8px;
  font-size:14px;color:var(--muted);
  white-space:nowrap;
  padding-left:16px;
}
.channel-hot .tag-mini{
  padding:3px 10px;
  border-radius:var(--r-pill);
  background:var(--bg-alt);
  border:1px solid var(--line);
  color:var(--text);
  font-size:13px;
}
.channel-hot .tag-mini:hover{border-color:var(--brand);color:var(--brand);background:var(--brand-soft);}
.site-header.scrolled{box-shadow:var(--sh-nav);backdrop-filter:blur(10px);background:rgba(255,255,255,.96);}
.site-header.scrolled .brand-row{height:0;opacity:0;overflow:hidden;padding:0;}
.site-header.scrolled .channel-row{border-top:0;height:56px;}

.mobile-panel{
  display:none;
  border-top:1px solid var(--line);
  background:#fff;
  padding:16px 0 22px;
}
.mobile-panel.open{display:block;}
.mobile-panel .search-shell{min-width:0;width:100%;height:46px;margin-bottom:14px;}
.mobile-panel .m-link{
  display:flex;align-items:center;justify-content:space-between;
  padding:12px 4px;
  font-size:16px;font-weight:600;color:var(--ink);
  border-bottom:1px dashed var(--line);
}
.mobile-panel .m-link.active{color:var(--brand);}
.mobile-panel .m-btns{display:flex;gap:12px;margin-top:18px;}
.mobile-panel .m-btns a{flex:1;justify-content:center;}

/* ============ 按钮 ============ */
.btn-x{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  height:48px;
  padding:0 24px;
  border-radius:var(--r-sm);
  font-size:16px;
  font-weight:700;
  border:1.5px solid transparent;
  cursor:pointer;
  transition:transform .2s ease,background .2s ease,box-shadow .2s ease,color .2s ease,border-color .2s ease;
}
.btn-primary-x{background:var(--brand);color:#fff;border-color:var(--brand);}
.btn-primary-x:hover{background:var(--brand-dark);border-color:var(--brand-dark);color:#fff;transform:translateY(-2px);box-shadow:0 12px 26px rgba(47,111,222,.28);}
.btn-outline-x{background:#fff;color:var(--brand);border-color:var(--brand);}
.btn-outline-x:hover{background:var(--brand-soft);color:var(--brand-dark);transform:translateY(-2px);}
.btn-soft-x{background:var(--bg-alt);color:var(--ink);border-color:var(--line);}
.btn-soft-x:hover{background:#e3ecf8;color:var(--ink);transform:translateY(-2px);}
.btn-link-x{
  display:inline-flex;align-items:center;gap:6px;
  color:var(--brand);font-weight:700;
  border-bottom:2px solid rgba(47,111,222,.3);
  padding-bottom:2px;
}
.btn-link-x:hover{border-bottom-color:var(--brand);}
.btn-x:disabled{opacity:.55;cursor:not-allowed;transform:none;}

/* ============ 分类 Hero ============ */
.cat-hero{
  position:relative;
  padding:56px 0 60px;
  background:
    radial-gradient(820px 320px at 88% -12%,rgba(47,111,222,.14),transparent 62%),
    radial-gradient(520px 260px at 8% 110%,rgba(31,169,142,.12),transparent 60%),
    var(--bg);
  overflow:hidden;
}
.cat-hero::before{
  content:"";
  position:absolute;
  inset:0;
  background-image:radial-gradient(rgba(47,111,222,.13) 1px,transparent 1px);
  background-size:22px 22px;
  opacity:.55;
  pointer-events:none;
}
.cat-hero .container-x{position:relative;z-index:1;}
.crumb{
  display:flex;align-items:center;gap:8px;
  font-size:14px;color:var(--muted);
  margin-bottom:18px;
}
.crumb a{color:var(--muted);}
.crumb a:hover{color:var(--brand);}
.crumb .sep{color:#c3d2e4;}
.hero-grid{
  display:grid;
  grid-template-columns:1.25fr .95fr;
  gap:48px;
  align-items:center;
}
.badge-soft{
  display:inline-flex;align-items:center;gap:8px;
  padding:6px 14px;
  border-radius:var(--r-pill);
  background:#fff;
  border:1px solid var(--line);
  color:var(--brand);
  font-size:14px;
  font-weight:700;
  box-shadow:0 4px 14px rgba(21,55,110,.05);
}
.badge-soft i{font-size:13px;}
.badge-mint{color:var(--mint);}
.hero-grid h1{
  font-size:clamp(30px,3.6vw,44px);
  font-weight:800;
  line-height:1.18;
  margin:18px 0 16px;
  letter-spacing:-.2px;
}
.hero-grid h1 em{
  font-style:normal;
  color:var(--brand);
}
.hero-sub{
  font-size:17px;
  line-height:1.85;
  color:var(--text);
  max-width:620px;
}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:26px;align-items:center;}
.hero-facts{
  display:flex;flex-wrap:wrap;gap:26px;
  margin-top:32px;
  padding-top:24px;
  border-top:1px solid var(--line);
}
.hero-facts .fact-num{
  font-size:24px;font-weight:800;color:var(--ink);line-height:1.2;
}
.hero-facts .fact-num span{color:var(--brand);}
.hero-facts .fact-label{font-size:14px;color:var(--muted);}
.hero-visual{position:relative;}
.hero-visual .photo{
  border-radius:var(--r-lg);
  overflow:hidden;
  border:1px solid var(--line);
  box-shadow:var(--sh-card);
  background:#fff;
}
.hero-visual .photo img{width:100%;aspect-ratio:16/10;object-fit:cover;}
.float-card{
  position:absolute;
  left:-18px;
  bottom:26px;
  background:#fff;
  border:1px solid var(--line);
  border-radius:var(--r-md);
  box-shadow:var(--sh-hover);
  padding:16px 18px;
  min-width:210px;
}
.float-card .fc-title{
  font-size:14px;font-weight:700;color:var(--ink);margin-bottom:10px;
  display:flex;align-items:center;gap:8px;
}
.float-card .fc-title i{color:var(--mint);}
.float-card .fc-line{
  height:8px;border-radius:6px;background:var(--bg-alt);margin-bottom:8px;overflow:hidden;
}
.float-card .fc-line b{display:block;height:100%;border-radius:6px;background:linear-gradient(90deg,var(--brand),#6ea3f3);}
.float-card .fc-line.mint b{background:linear-gradient(90deg,var(--mint),#54c7b1);width:72%;}
.float-card .fc-line.blue b{width:88%;}
.float-card .fc-line.gray b{width:56%;}

/* ============ 通用板块 ============ */
section.block{padding:var(--sec-y) 0;}
section.block.alt{background:var(--bg-alt);}
.sec-head{max-width:760px;margin-bottom:38px;}
.sec-head .eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:14px;font-weight:700;color:var(--brand);
  margin-bottom:12px;
}
.sec-head .eyebrow::before{
  content:"";width:22px;height:3px;border-radius:3px;background:var(--brand);
}
.sec-head h2{
  font-size:clamp(24px,2.6vw,34px);
  font-weight:700;
  line-height:1.3;
  margin-bottom:12px;
}
.sec-head p{color:var(--text);margin:0;}
.sec-head.row-head{
  max-width:none;
  display:flex;align-items:flex-end;justify-content:space-between;gap:24px;
}

/* ============ 导语区 ============ */
.intro-wrap{
  display:grid;
  grid-template-columns:1.6fr 1fr;
  gap:32px;
  align-items:start;
}
.intro-card{
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--r-lg);
  padding:32px;
  box-shadow:var(--sh-card);
}
.intro-card h3{font-size:21px;font-weight:700;margin-bottom:14px;}
.intro-card p{font-size:16.5px;line-height:1.9;color:var(--text);}
.intro-points{
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--r-lg);
  padding:26px;
  box-shadow:var(--sh-card);
}
.intro-points h4{font-size:17px;font-weight:700;margin-bottom:16px;}
.intro-points li{
  display:flex;gap:12px;
  padding:12px 0;
  border-bottom:1px dashed var(--line);
  font-size:15px;
  color:var(--text);
}
.intro-points li:last-child{border-bottom:0;padding-bottom:0;}
.intro-points li i{
  color:var(--mint);
  margin-top:5px;
  flex:none;
}

/* ============ 步骤时间线 ============ */
.timeline{
  position:relative;
  margin-top:10px;
  padding-left:8px;
}
.timeline::before{
  content:"";
  position:absolute;
  left:35px;top:12px;bottom:12px;
  width:2px;
  background:linear-gradient(180deg,var(--brand),rgba(47,111,222,.15));
  border-radius:2px;
}
.tl-item{
  position:relative;
  display:grid;
  grid-template-columns:72px 1fr;
  gap:22px;
  padding:0 0 30px;
}
.tl-item:last-child{padding-bottom:0;}
.tl-dot{
  width:56px;height:56px;
  border-radius:18px;
  background:#fff;
  border:1px solid var(--line);
  box-shadow:var(--sh-card);
  display:grid;place-items:center;
  font-weight:800;
  color:var(--brand);
  font-size:16px;
  z-index:1;
}
.tl-body{
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--r-md);
  padding:22px 24px;
  box-shadow:var(--sh-card);
  transition:transform .2s ease,box-shadow .2s ease;
}
.tl-body:hover{transform:translateY(-4px);box-shadow:var(--sh-hover);}
.tl-body h3{
  font-size:19px;font-weight:700;margin-bottom:8px;
  display:flex;align-items:center;gap:10px;flex-wrap:wrap;
}
.tl-body h3 .pill{
  font-size:12.5px;font-weight:700;
  padding:3px 10px;border-radius:var(--r-pill);
  background:var(--brand-soft);color:var(--brand);
}
.tl-body h3 .pill.mint{background:rgba(31,169,142,.12);color:var(--mint);}
.tl-body p{margin:0;font-size:16px;line-height:1.85;}
.tl-body .tl-tips{
  margin-top:14px;
  display:flex;flex-wrap:wrap;gap:8px;
}
.tl-body .tl-tips span{
  font-size:13.5px;
  padding:5px 12px;
  border-radius:var(--r-pill);
  background:var(--bg-alt);
  color:var(--text);
  border:1px solid var(--line);
}

/* ============ 注意事项卡 ============ */
.note-grid{
  display:grid;
  grid-template-columns:repeat(3,1fr);
  gap:24px;
}
.note-card{
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--r-md);
  padding:26px;
  box-shadow:var(--sh-card);
  transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.note-card:hover{transform:translateY(-4px);box-shadow:var(--sh-hover);border-color:#c9dcf6;}
.note-icon{
  width:48px;height:48px;
  border-radius:14px;
  display:grid;place-items:center;
  font-size:19px;
  margin-bottom:18px;
  background:var(--brand-soft);
  color:var(--brand);
}
.note-icon.mint{background:rgba(31,169,142,.12);color:var(--mint);}
.note-icon.sand{background:rgba(242,154,74,.14);color:#d97f2c;}
.note-card h3{font-size:18px;font-weight:700;margin-bottom:10px;}
.note-card p{font-size:15.5px;line-height:1.85;margin:0;}

/* ============ 入口按钮组 ============ */
.entry-band{
  background:linear-gradient(135deg,#eaf2fe 0%,#f4f9ff 55%,#eef8f5 100%);
  border:1px solid var(--line);
  border-radius:var(--r-lg);
  padding:40px;
  display:grid;
  grid-template-columns:1.3fr 1fr;
  gap:34px;
  align-items:center;
}
.entry-band h2{font-size:clamp(22px,2.3vw,30px);font-weight:700;margin-bottom:12px;}
.entry-band p{margin:0;font-size:16px;color:var(--text);}
.entry-actions{display:flex;flex-direction:column;gap:14px;}
.entry-actions .row-two{display:flex;gap:14px;flex-wrap:wrap;}
.entry-actions .row-two .btn-x{flex:1;min-width:150px;}
.entry-note{
  display:flex;align-items:center;gap:10px;
  font-size:14px;color:var(--muted);
}
.entry-note i{color:var(--mint);}

/* ============ FAQ ============ */
.faq-wrap{max-width:920px;margin:0 auto;}
.accordion-x .accordion-item{
  background:var(--card);
  border:1px solid var(--line);
  border-radius:14px !important;
  margin-bottom:14px;
  overflow:hidden;
  transition:box-shadow .2s ease,border-color .2s ease;
}
.accordion-x .accordion-item:hover{border-color:#c9dcf6;box-shadow:var(--sh-card);}
.accordion-x .accordion-button{
  background:#fff;
  color:var(--ink);
  font-size:17px;
  font-weight:600;
  padding:20px 22px;
  border:0;
  box-shadow:none;
  display:flex;align-items:center;gap:12px;
}
.accordion-x .accordion-button::after{
  margin-left:auto;
  width:16px;height:16px;background-size:16px;
  filter:invert(34%) sepia(78%) saturate(1980%) hue-rotate(204deg) brightness(94%) contrast(92%);
}
.accordion-x .accordion-button:not(.collapsed){
  color:var(--brand);
  background:#fff;
  box-shadow:inset 4px 0 0 0 var(--brand);
}
.accordion-x .accordion-button:focus{box-shadow:0 0 0 3px var(--brand-ring);}
.accordion-x .accordion-body{
  padding:0 22px 22px 38px;
  font-size:15.5px;
  line-height:1.85;
  color:var(--text);
}

/* ============ 相关分类互链 ============ */
.rel-grid{
  display:grid;
  grid-template-columns:repeat(2,1fr);
  gap:24px;
}
.rel-card{
  display:flex;
  gap:22px;
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--r-md);
  padding:22px;
  box-shadow:var(--sh-card);
  transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.rel-card:hover{transform:translateY(-4px);box-shadow:var(--sh-hover);border-color:#c9dcf6;}
.rel-card .rel-thumb{
  width:132px;flex:none;
  border-radius:var(--r-sm);
  overflow:hidden;
  border:1px solid var(--line);
}
.rel-card .rel-thumb img{width:100%;height:100%;object-fit:cover;aspect-ratio:4/3;}
.rel-card .rel-body h3{font-size:17.5px;font-weight:700;margin-bottom:8px;}
.rel-card .rel-body h3 a{color:var(--ink);}
.rel-card .rel-body h3 a:hover{color:var(--brand);}
.rel-card .rel-body p{font-size:15px;color:var(--text);margin:0 0 12px;}
.rel-more{font-size:14.5px;font-weight:700;color:var(--brand);display:inline-flex;align-items:center;gap:6px;}

/* ============ 页脚 ============ */
.site-footer{
  background:#0B1F3A;
  color:#c7d5e8;
  padding-top:64px;
  padding-bottom:80px;
  margin-top:0;
}
.footer-grid{
  display:grid;
  grid-template-columns:1.5fr 1fr 1fr 1.2fr;
  gap:36px;
}
.footer-brand .logo{color:#fff;margin-bottom:16px;}
.footer-brand .logo-text{color:#fff;}
.footer-brand p{font-size:14.5px;line-height:1.85;color:#93a7c2;margin:0;}
.footer-col h4{
  color:#fff;font-size:16px;font-weight:700;margin-bottom:16px;
}
.footer-col ul li{margin-bottom:11px;}
.footer-col ul li a{color:#a9bcd5;font-size:14.5px;}
.footer-col ul li a:hover{color:#fff;}
.footer-contact li{
  display:flex;gap:10px;font-size:14.5px;color:#a9bcd5;margin-bottom:12px;line-height:1.7;
}
.footer-contact .dot{
  width:6px;height:6px;border-radius:50%;background:var(--mint);margin-top:9px;flex:none;
}
.footer-bottom{
  margin-top:46px;
  padding-top:22px;
  border-top:1px solid rgba(255,255,255,.12);
  display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:13.5px;color:#8399b5;
}

/* ============ 底部固定转化条 ============ */
.bottom-bar{
  position:fixed;
  left:0;right:0;bottom:0;
  z-index:1040;
  background:#fff;
  box-shadow:0 -8px 26px rgba(21,55,110,.12);
  border-top:1px solid var(--line);
  height:64px;
  display:none;
}
.bottom-bar.show{display:block;animation:barUp .28s ease;}
@keyframes barUp{from{transform:translateY(100%);}to{transform:translateY(0);}}
.bottom-inner{
  height:64px;
  display:flex;align-items:center;justify-content:space-between;gap:18px;
}
.bottom-text{
  font-size:15px;font-weight:700;color:var(--ink);margin:0;
  display:flex;align-items:center;gap:10px;
}
.bottom-text i{color:var(--brand);}
.bottom-actions{display:flex;align-items:center;gap:12px;}
.bottom-actions .btn-x{height:42px;padding:0 20px;font-size:15px;}
.bottom-close{
  width:34px;height:34px;border-radius:10px;
  border:1px solid var(--line);background:#fff;color:var(--muted);
  font-size:16px;line-height:1;
}
.bottom-close:hover{color:var(--ink);border-color:#c9dcf6;}
.bottom-phone{
  display:none;
  width:42px;height:42px;border-radius:12px;
  background:var(--brand-soft);color:var(--brand);
  place-items:center;font-size:16px;
}

/* ============ 响应式 ============ */
@media (max-width:1200px){
  .hero-grid{gap:34px;}
  .rel-card .rel-thumb{width:112px;}
}
@media (max-width:992px){
  :root{--sec-y:48px;}
  .brand-actions .search-shell,
  .brand-actions .btn-top-ghost,
  .brand-actions .btn-top-solid{display:none;}
  .nav-toggle{display:grid;place-items:center;}
  .channel-hot{display:none;}
  .cat-hero{padding:40px 0 46px;}
  .hero-grid{grid-template-columns:1fr;gap:32px;}
  .hero-visual{order:-1;}
  .float-card{left:12px;bottom:12px;}
  .intro-wrap{grid-template-columns:1fr;}
  .note-grid{grid-template-columns:repeat(2,1fr);}
  .entry-band{grid-template-columns:1fr;padding:30px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:30px;}
  .rel-grid{grid-template-columns:1fr;}
}
@media (max-width:768px){
  body{font-size:16px;}
  .tl-item{grid-template-columns:56px 1fr;gap:16px;}
  .timeline::before{left:27px;}
  .tl-dot{width:44px;height:44px;border-radius:14px;font-size:15px;}
  .note-grid{grid-template-columns:1fr;}
  .intro-card{padding:24px;}
  .sec-head.row-head{flex-direction:column;align-items:flex-start;gap:14px;}
  .bottom-text{font-size:14px;}
  .bottom-actions .btn-soft-x{display:none;}
  .bottom-phone{display:grid;}
  .site-footer{padding-bottom:96px;}
}
@media (max-width:576px){
  .container-x{padding:0 16px;}
  .logo{font-size:15.5px;}
  .logo-mark{width:28px;height:28px;border-radius:9px;font-size:13px;}
  .hero-grid h1{font-size:26px;}
  .hero-actions .btn-x{width:100%;}
  .hero-facts{gap:18px;}
  .hero-facts .fact-num{font-size:20px;}
  .tl-body{padding:18px;}
  .rel-card{flex-direction:column;}
  .rel-card .rel-thumb{width:100%;}
  .rel-card .rel-thumb img{aspect-ratio:16/9;}
  .footer-grid{grid-template-columns:1fr;}
  .entry-band{padding:22px;}
}

/* roulang page: category2 */
:root{
  --brand:#2F6FDE;
  --brand-dark:#2459B8;
  --brand-soft:rgba(47,111,222,.08);
  --brand-ring:rgba(47,111,222,.25);
  --mint:#1FA98E;
  --mint-soft:rgba(31,169,142,.10);
  --sand:#F29A4A;
  --sand-soft:rgba(242,154,74,.12);
  --bg:#F6F9FD;
  --bg-alt:#EDF3FA;
  --card:#FFFFFF;
  --ink:#0B1F3A;
  --text:#43566F;
  --muted:#7A8CA3;
  --line:#DDE7F2;
  --r-sm:12px;
  --r-md:16px;
  --r-lg:20px;
  --r-pill:999px;
  --sh-card:0 10px 30px rgba(21,55,110,.08);
  --sh-hover:0 14px 36px rgba(21,55,110,.13);
  --sh-nav:0 6px 20px rgba(21,55,110,.08);
}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  font-family:"Noto Sans SC","PingFang SC","Microsoft YaHei","Hiragino Sans GB",system-ui,sans-serif;
  background:var(--bg);
  color:var(--text);
  font-size:16.5px;
  line-height:1.8;
  overflow-x:hidden;
}
img{max-width:100%;height:auto;display:block}
a{color:var(--brand);text-decoration:none;transition:color .18s ease}
a:hover{color:var(--brand-dark)}
button,input,select,textarea{font-family:inherit;font-size:inherit}
:focus-visible{outline:3px solid var(--brand-ring);outline-offset:2px;border-radius:6px}
h1,h2,h3,h4{color:var(--ink);margin:0 0 .6em;letter-spacing:-.01em}
h1{font-size:clamp(32px,4.2vw,52px);font-weight:800;line-height:1.15}
h2{font-size:clamp(26px,3vw,36px);font-weight:700;line-height:1.25}
h3{font-size:21px;font-weight:700;line-height:1.4}
p{margin:0 0 1.1em}
.container-x{width:100%;max-width:1200px;margin:0 auto;padding:0 20px}
@media(min-width:1440px){.container-x{max-width:1320px}}

/* ---------- 顶部导航 ---------- */
.site-header{position:relative;z-index:1040;background:#fff;border-bottom:1px solid var(--line)}
.brand-bar{background:#fff}
.brand-inner{display:flex;align-items:center;gap:18px;height:64px}
.logo{display:inline-flex;align-items:center;gap:10px;flex-shrink:0}
.logo-mark{
  width:36px;height:36px;border-radius:11px;display:grid;place-items:center;
  background:linear-gradient(135deg,var(--brand),#5E94EC);color:#fff;font-weight:800;font-size:17px;
  box-shadow:0 6px 16px rgba(47,111,222,.28)
}
.logo-text{font-size:18px;font-weight:800;color:var(--ink);white-space:nowrap}
.brand-spacer{flex:1}
.brand-tools{display:flex;align-items:center;gap:10px}
.search-mini{
  display:flex;align-items:center;gap:8px;height:40px;padding:0 14px;border:1px solid var(--line);
  border-radius:var(--r-pill);background:#F8FBFF;min-width:210px;color:var(--muted);font-size:14px;cursor:pointer;
  transition:border-color .18s ease,background .18s ease
}
.search-mini:hover{border-color:#B9CFEE;background:#fff}
.search-mini .ico{width:15px;height:15px;border:2px solid var(--muted);border-radius:50%;position:relative;flex-shrink:0}
.search-mini .ico::after{content:"";position:absolute;width:2px;height:7px;background:var(--muted);transform:rotate(45deg);right:-3px;bottom:-3px;border-radius:2px}
.btn-ghost{
  height:40px;padding:0 16px;border-radius:var(--r-sm);border:1.5px solid var(--line);background:#fff;
  color:var(--ink);font-weight:600;font-size:14px;display:inline-flex;align-items:center;
  transition:border-color .18s ease,background .18s ease,transform .18s ease
}
.btn-ghost:hover{border-color:var(--brand);background:var(--brand-soft);color:var(--brand-dark)}
.btn-solid{
  height:40px;padding:0 18px;border-radius:var(--r-sm);border:0;background:var(--brand);color:#fff;font-weight:700;font-size:14px;
  display:inline-flex;align-items:center;gap:6px;box-shadow:0 6px 16px rgba(47,111,222,.26);
  transition:background .18s ease,transform .18s ease
}
.btn-solid:hover{background:var(--brand-dark);color:#fff;transform:translateY(-2px)}

.channel-nav-wrap{background:#fff;border-top:1px solid var(--line)}
.channel-nav{display:flex;align-items:center;gap:6px;height:46px;overflow-x:auto;scrollbar-width:none}
.channel-nav::-webkit-scrollbar{display:none}
.channel-link{
  position:relative;padding:0 4px;height:46px;display:inline-flex;align-items:center;
  font-size:15px;font-weight:600;color:var(--text);white-space:nowrap;margin-right:20px
}
.channel-link::after{
  content:"";position:absolute;left:0;right:0;bottom:0;height:3px;border-radius:3px 3px 0 0;
  background:transparent;transition:background .18s ease
}
.channel-link:hover{color:var(--brand)}
.channel-link.active{color:var(--brand)}
.channel-link.active::after{background:var(--brand)}
.channel-trend{
  margin-left:auto;display:inline-flex;align-items:center;gap:6px;font-size:13px;color:var(--muted);white-space:nowrap
}
.channel-trend b{color:var(--sand);font-weight:700}
.site-header.is-stuck .brand-bar{display:none}
.site-header.is-stuck .channel-nav-wrap{
  position:fixed;top:0;left:0;right:0;background:rgba(255,255,255,.96);
  -webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);border-bottom:1px solid var(--line);
  box-shadow:var(--sh-nav);z-index:1040
}
.site-header.is-stuck .channel-nav{height:56px}
.site-header.is-stuck .channel-link{height:56px}
.nav-toggle{
  display:none;width:44px;height:44px;border-radius:var(--r-sm);border:1px solid var(--line);background:#fff;
  align-items:center;justify-content:center;flex-direction:column;gap:4px
}
.nav-toggle span{display:block;width:18px;height:2px;background:var(--ink);border-radius:2px}
.mobile-panel{display:none;padding:8px 0 18px;border-top:1px solid var(--line);background:#fff}
.mobile-panel a{display:block;padding:12px 4px;font-weight:600;color:var(--ink);border-bottom:1px dashed var(--line)}
.mobile-panel .m-actions{display:flex;gap:10px;margin-top:14px}
.mobile-panel .m-actions a{flex:1;text-align:center;border:0;border-radius:var(--r-sm);padding:12px 0}
.mobile-panel .m-actions .p{background:var(--brand);color:#fff}
.mobile-panel .m-actions .s{background:var(--brand-soft);color:var(--brand-dark)}
@media(max-width:991px){
  .brand-tools .search-mini{display:none}
  .brand-tools .btn-ghost{display:none}
  .nav-toggle{display:flex}
}

/* ---------- Hero ---------- */
.page-hero{
  position:relative;overflow:hidden;padding:56px 0 60px;
  background:
    radial-gradient(720px 320px at 88% -12%,rgba(47,111,222,.16),transparent 70%),
    radial-gradient(520px 260px at 4% 104%,rgba(31,169,142,.13),transparent 72%),
    linear-gradient(180deg,#F4F8FF 0%,var(--bg) 100%);
  border-bottom:1px solid var(--line)
}
.page-hero::after{
  content:"";position:absolute;inset:0;pointer-events:none;opacity:.5;
  background-image:radial-gradient(rgba(47,111,222,.16) 1px,transparent 1px);
  background-size:22px 22px;
  -webkit-mask-image:linear-gradient(120deg,#000 0%,transparent 62%);
  mask-image:linear-gradient(120deg,#000 0%,transparent 62%)
}
.hero-grid{position:relative;z-index:2;display:grid;grid-template-columns:1.08fr .92fr;gap:44px;align-items:center}
.crumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13.5px;color:var(--muted);margin-bottom:16px}
.crumb a{color:var(--muted)}
.crumb a:hover{color:var(--brand)}
.crumb .sep{opacity:.65}
.crumb .cur{color:var(--ink);font-weight:600}
.tag-row{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:16px}
.tag{
  display:inline-flex;align-items:center;gap:6px;height:28px;padding:0 12px;border-radius:var(--r-pill);
  font-size:13px;font-weight:600;background:var(--brand-soft);color:var(--brand-dark)
}
.tag.mint{background:var(--mint-soft);color:#15806B}
.tag.sand{background:var(--sand-soft);color:#B96A1E}
.hero-lead{font-size:17.5px;color:var(--text);max-width:620px;margin-bottom:24px}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;align-items:center;margin-bottom:22px}
.btn-primary-x{
  height:48px;padding:0 26px;border-radius:var(--r-sm);border:0;background:var(--brand);color:#fff;
  font-weight:700;font-size:16px;display:inline-flex;align-items:center;gap:8px;
  box-shadow:0 10px 24px rgba(47,111,222,.28);
  transition:background .2s ease,transform .2s ease,box-shadow .2s ease
}
.btn-primary-x:hover{background:var(--brand-dark);color:#fff;transform:translateY(-2px);box-shadow:0 14px 30px rgba(47,111,222,.34)}
.btn-outline-x{
  height:48px;padding:0 24px;border-radius:var(--r-sm);border:1.5px solid var(--brand);background:#fff;color:var(--brand);
  font-weight:700;font-size:16px;display:inline-flex;align-items:center;gap:8px;
  transition:background .2s ease,transform .2s ease
}
.btn-outline-x:hover{background:var(--brand-soft);color:var(--brand-dark);transform:translateY(-2px)}
.link-x{font-weight:700;font-size:15.5px;border-bottom:2px solid rgba(47,111,222,.35);padding-bottom:2px}
.link-x:hover{border-bottom-color:var(--brand)}
.hero-note{display:flex;flex-wrap:wrap;gap:18px;font-size:14px;color:var(--muted)}
.hero-note span{display:inline-flex;align-items:center;gap:7px}
.check-ico{
  width:18px;height:18px;border-radius:50%;background:var(--mint-soft);color:var(--mint);display:inline-grid;place-items:center;
  font-size:11px;font-weight:800;flex-shrink:0
}
.hero-figure{position:relative}
.hero-figure img{border-radius:var(--r-lg);box-shadow:0 18px 46px rgba(21,55,110,.16)}
.hero-badge{
  position:absolute;left:-14px;bottom:22px;background:#fff;border:1px solid var(--line);border-radius:var(--r-md);
  padding:14px 18px;box-shadow:var(--sh-card);min-width:196px
}
.hero-badge .n{font-size:24px;font-weight:800;color:var(--brand);line-height:1.2}
.hero-badge .t{font-size:13px;color:var(--muted);margin-top:2px}
@media(max-width:991px){
  .page-hero{padding:36px 0 42px}
  .hero-grid{grid-template-columns:1fr;gap:28px}
  .hero-badge{left:12px;bottom:-16px}
}

/* ---------- 通用板块 ---------- */
.section{padding:72px 0}
.section.alt{background:var(--bg-alt)}
.section-head{max-width:760px;margin-bottom:38px}
.section-head.center{margin-left:auto;margin-right:auto;text-align:center}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;font-size:13.5px;font-weight:700;color:var(--brand);
  letter-spacing:.02em;margin-bottom:12px
}
.eyebrow::before{content:"";width:22px;height:2px;border-radius:2px;background:var(--brand)}
.h2-bar{position:relative;padding-left:16px}
.h2-bar::before{content:"";position:absolute;left:0;top:.16em;bottom:.16em;width:4px;border-radius:4px;background:var(--brand)}
.section-sub{color:var(--muted);font-size:16px;margin:0}
@media(max-width:991px){.section{padding:48px 0}}
@media(max-width:575px){.section{padding:32px 0}.section-head{margin-bottom:26px}}

/* ---------- 数据条 ---------- */
.stat-strip{
  display:grid;grid-template-columns:repeat(4,1fr);gap:0;
  background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);box-shadow:var(--sh-card);overflow:hidden
}
.stat-item{padding:26px 22px;border-right:1px solid var(--line)}
.stat-item:last-child{border-right:0}
.stat-num{font-size:clamp(26px,3vw,34px);font-weight:800;color:var(--ink);line-height:1.15}
.stat-num em{font-style:normal;font-size:16px;font-weight:700;color:var(--brand);margin-left:2px}
.stat-label{font-size:14px;color:var(--muted);margin-top:6px}
@media(max-width:768px){
  .stat-strip{grid-template-columns:repeat(2,1fr)}
  .stat-item:nth-child(2){border-right:0}
  .stat-item:nth-child(1),.stat-item:nth-child(2){border-bottom:1px solid var(--line)}
}
@media(max-width:520px){.stat-strip{grid-template-columns:1fr}.stat-item{border-right:0;border-bottom:1px solid var(--line)}.stat-item:last-child{border-bottom:0}}

/* ---------- 双列说明卡 ---------- */
.duo-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:24px}
.duo-card{
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-md);padding:28px;
  box-shadow:var(--sh-card);transition:box-shadow .22s ease,transform .22s ease,border-color .22s ease
}
.duo-card:hover{box-shadow:var(--sh-hover);transform:translateY(-4px);border-color:#C6D9F3}
.duo-card .head{display:flex;align-items:center;gap:12px;margin-bottom:14px}
.duo-card .num{
  width:42px;height:42px;border-radius:12px;display:grid;place-items:center;font-weight:800;font-size:15px;
  background:var(--brand-soft);color:var(--brand-dark);flex-shrink:0
}
.duo-card.mint .num{background:var(--mint-soft);color:#15806B}
.duo-card.sand .num{background:var(--sand-soft);color:#B96A1E}
.duo-card h3{margin:0;font-size:19px}
.duo-card p{font-size:15.5px;color:var(--text);margin-bottom:14px}
.tick-list{list-style:none;padding:0;margin:0}
.tick-list li{position:relative;padding-left:26px;font-size:15px;color:var(--text);margin-bottom:10px;line-height:1.7}
.tick-list li::before{
  content:"";position:absolute;left:0;top:.62em;width:14px;height:14px;border-radius:4px;
  background:var(--brand-soft);border:1.5px solid var(--brand)
}
.duo-card.mint .tick-list li::before{background:var(--mint-soft);border-color:var(--mint)}
.media-card{
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-md);overflow:hidden;box-shadow:var(--sh-card);
  transition:box-shadow .22s ease,transform .22s ease
}
.media-card:hover{box-shadow:var(--sh-hover);transform:translateY(-4px)}
.media-card img{width:100%;aspect-ratio:16/9;object-fit:cover;border-radius:0}
.media-card .body{padding:20px 22px 24px}
.media-card h3{font-size:18.5px;margin-bottom:8px}
.media-card p{font-size:14.5px;color:var(--muted);margin-bottom:12px}
@media(max-width:991px){.duo-grid{grid-template-columns:1fr}}

/* ---------- 排查表 ---------- */
.table-shell{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-md);box-shadow:var(--sh-card);overflow:hidden
}
.table-shell .cap{
  padding:20px 24px;border-bottom:1px solid var(--line);display:flex;flex-wrap:wrap;gap:10px;align-items:center;justify-content:space-between
}
.table-shell .cap h3{margin:0;font-size:18px}
.table-shell .cap span{font-size:13.5px;color:var(--muted)}
.table-scroll{overflow-x:auto}
table.safe-table{width:100%;border-collapse:collapse;min-width:680px}
table.safe-table thead th{
  background:#F3F8FF;color:var(--ink);font-size:14px;font-weight:700;text-align:left;padding:14px 20px;
  border-bottom:1px solid var(--line);white-space:nowrap
}
table.safe-table tbody td{padding:15px 20px;font-size:14.5px;border-bottom:1px solid var(--line);color:var(--text);vertical-align:top}
table.safe-table tbody tr:nth-child(even){background:#FAFCFF}
table.safe-table tbody tr:last-child td{border-bottom:0}
table.safe-table tbody tr:hover{background:#F3F8FF}
.pill-row{display:flex;flex-wrap:wrap;gap:6px}
.pill{
  display:inline-flex;align-items:center;height:24px;padding:0 10px;border-radius:var(--r-pill);font-size:12.5px;font-weight:700;
  background:var(--bg-alt);color:var(--text)
}
.pill.ok{background:var(--mint-soft);color:#15806B}
.pill.warn{background:var(--sand-soft);color:#B96A1E}
.pill.info{background:var(--brand-soft);color:var(--brand-dark)}

/* ---------- 折叠面板 ---------- */
.fold-list{display:grid;gap:12px}
.fold-item{background:#fff;border:1px solid var(--line);border-radius:14px;overflow:hidden;transition:border-color .2s ease,box-shadow .2s ease}
.fold-item:hover{border-color:#C6D9F3;box-shadow:0 8px 22px rgba(21,55,110,.07)}
.fold-head{
  width:100%;background:transparent;border:0;text-align:left;padding:18px 20px;display:flex;align-items:center;gap:14px;
  cursor:pointer;position:relative
}
.fold-head .fi{
  width:30px;height:30px;border-radius:9px;background:var(--brand-soft);color:var(--brand-dark);
  display:grid;place-items:center;font-size:13px;font-weight:800;flex-shrink:0
}
.fold-head .ft{font-size:17px;font-weight:600;color:var(--ink);flex:1}
.fold-head .arrow{width:10px;height:10px;border-right:2px solid var(--muted);border-bottom:2px solid var(--muted);transform:rotate(45deg);transition:transform .22s ease;margin-right:6px}
.fold-item.open .fold-head .arrow{transform:rotate(-135deg)}
.fold-body{max-height:0;overflow:hidden;transition:max-height .28s ease}
.fold-inner{padding:0 20px 20px 64px;font-size:15px;color:var(--text);line-height:1.85;border-left:4px solid transparent}
.fold-item.open{border-left:4px solid var(--brand)}
.fold-item.open .fold-inner{border-left:0}
.fold-item.open .fold-head .fi{background:var(--brand);color:#fff}
@media(max-width:575px){.fold-inner{padding-left:22px}}

/* ---------- 安全提示条 ---------- */
.safe-note{
  display:flex;gap:18px;align-items:flex-start;padding:24px 26px;border-radius:var(--r-md);
  background:linear-gradient(120deg,rgba(242,154,74,.13),rgba(242,154,74,.05));
  border:1px solid rgba(242,154,74,.35)
}
.safe-note .badge-i{
  width:44px;height:44px;border-radius:12px;background:var(--sand);color:#fff;display:grid;place-items:center;
  font-weight:800;font-size:18px;flex-shrink:0
}
.safe-note h3{margin:0 0 6px;font-size:18px}
.safe-note p{margin:0;font-size:15px;color:var(--text)}
@media(max-width:575px){.safe-note{flex-direction:column;gap:12px;padding:20px}}

/* ---------- FAQ ---------- */
.faq-wrap{max-width:900px;margin:0 auto}
.accordion-x .accordion-item{
  border:1px solid var(--line);border-radius:14px;margin-bottom:12px;overflow:hidden;background:#fff;
  box-shadow:0 4px 14px rgba(21,55,110,.05)
}
.accordion-x .accordion-button{
  font-size:17px;font-weight:600;color:var(--ink);background:#fff;padding:18px 20px;box-shadow:none;gap:14px
}
.accordion-x .accordion-button::after{
  background-image:none;content:"";width:11px;height:11px;border-right:2px solid var(--muted);border-bottom:2px solid var(--muted);
  transform:rotate(45deg);transition:transform .22s ease;margin-left:auto
}
.accordion-x .accordion-button:not(.collapsed){color:var(--brand-dark);background:#F7FAFF;border-left:4px solid var(--brand)}
.accordion-x .accordion-button:not(.collapsed)::after{transform:rotate(-135deg);border-color:var(--brand)}
.accordion-x .accordion-button:focus{box-shadow:0 0 0 3px var(--brand-ring)}
.accordion-x .accordion-body{font-size:15px;line-height:1.85;color:var(--text);padding:4px 20px 20px}

/* ---------- 表单 ---------- */
.form-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);padding:32px;box-shadow:var(--sh-card)
}
.form-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:18px}
.field{display:flex;flex-direction:column;gap:7px}
.field.full{grid-column:1 / -1}
.field label{font-size:14.5px;font-weight:600;color:var(--ink)}
.field .hint{font-size:13px;color:var(--muted)}
.field input,.field select,.field textarea{
  width:100%;height:48px;padding:0 14px;border:1.5px solid var(--line);border-radius:var(--r-sm);background:#FBFDFF;
  color:var(--ink);font-size:15px;transition:border-color .18s ease,box-shadow .18s ease,background .18s ease
}
.field textarea{height:auto;min-height:128px;padding:12px 14px;resize:vertical;line-height:1.7}
.field input:focus,.field select:focus,.field textarea:focus{
  outline:0;border-color:var(--brand);background:#fff;box-shadow:0 0 0 3px var(--brand-ring)
}
.field .err{font-size:13px;color:#C4722A;display:none}
.form-actions{display:flex;flex-wrap:wrap;gap:12px;align-items:center;margin-top:22px}
.form-note{font-size:13.5px;color:var(--muted);margin:14px 0 0}
.form-side{
  background:var(--bg-alt);border:1px solid var(--line);border-radius:var(--r-lg);padding:28px
}
.form-side h3{font-size:19px;margin-bottom:14px}
.side-list{list-style:none;padding:0;margin:0}
.side-list li{display:flex;gap:10px;font-size:14.5px;padding:10px 0;border-bottom:1px dashed var(--line);color:var(--text)}
.side-list li:last-child{border-bottom:0}
.side-list .k{color:var(--brand);font-weight:800;flex-shrink:0}
.form-layout{display:grid;grid-template-columns:1.35fr .65fr;gap:24px;align-items:start}
@media(max-width:991px){.form-layout{grid-template-columns:1fr}.form-grid{grid-template-columns:1fr}.form-card{padding:22px}}

/* ---------- 相关分类互链 ---------- */
.rel-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:24px}
.rel-card{
  display:flex;gap:18px;align-items:center;background:#fff;border:1px solid var(--line);border-radius:var(--r-md);
  padding:22px;box-shadow:var(--sh-card);transition:box-shadow .22s ease,transform .22s ease,border-color .22s ease
}
.rel-card:hover{box-shadow:var(--sh-hover);transform:translateY(-4px);border-color:#C6D9F3;color:inherit}
.rel-card img{width:120px;height:88px;border-radius:12px;object-fit:cover;flex-shrink:0}
.rel-card h3{font-size:18px;margin-bottom:6px;color:var(--ink)}
.rel-card p{font-size:14.5px;color:var(--muted);margin:0}
.rel-card .go{font-size:14px;font-weight:700;color:var(--brand);margin-top:8px;display:inline-block}
@media(max-width:768px){.rel-grid{grid-template-columns:1fr}.rel-card img{width:96px;height:72px}}

/* ---------- 页脚 ---------- */
.site-footer{background:#0B1F3A;color:#C9D6E8;padding:64px 0 80px;margin-top:0}
.site-footer .logo-text{color:#fff}
.site-footer .logo-mark{background:linear-gradient(135deg,#3F7FE8,#6FA1F2)}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:36px}
.footer-brand p{font-size:14.5px;color:#93A6C0;line-height:1.85;margin-top:16px;max-width:340px}
.footer-col h4{color:#fff;font-size:16px;font-weight:700;margin-bottom:16px}
.footer-col ul{list-style:none;padding:0;margin:0}
.footer-col li{margin-bottom:10px}
.footer-col a{font-size:14.5px;color:#A9BBD4}
.footer-col a:hover{color:#fff}
.footer-contact li{display:flex;gap:9px;font-size:14.5px;color:#A9BBD4;line-height:1.7;margin-bottom:12px}
.footer-contact .dot{width:6px;height:6px;border-radius:50%;background:var(--mint);margin-top:9px;flex-shrink:0}
.footer-bottom{
  margin-top:40px;padding-top:22px;border-top:1px solid rgba(255,255,255,.12);
  display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;font-size:13.5px;color:#8296B1
}
@media(max-width:991px){.footer-grid{grid-template-columns:1fr 1fr;gap:28px}}
@media(max-width:575px){.footer-grid{grid-template-columns:1fr}.site-footer{padding:48px 0 88px}}

/* ---------- 底部固定转化条 ---------- */
.sticky-cta{
  position:fixed;left:0;right:0;bottom:0;height:64px;background:#fff;border-top:1px solid var(--line);
  box-shadow:0 -8px 26px rgba(21,55,110,.10);z-index:1050;
  display:flex;align-items:center;transform:translateY(110%);transition:transform .3s ease
}
.sticky-cta.show{transform:translateY(0)}
.sticky-cta .inner{display:flex;align-items:center;gap:16px;width:100%}
.sticky-cta .txt{font-size:15px;font-weight:600;color:var(--ink)}
.sticky-cta .spacer{flex:1}
.sticky-cta .close-x{
  width:34px;height:34px;border-radius:10px;border:1px solid var(--line);background:#fff;color:var(--muted);
  display:grid;place-items:center;font-size:16px;line-height:1
}
.sticky-cta .close-x:hover{background:var(--bg-alt);color:var(--ink)}
.sticky-cta .btn-solid{height:42px}
@media(max-width:575px){
  .sticky-cta .txt{display:none}
  .sticky-cta .btn-ghost{display:none}
  .sticky-cta .inner{gap:10px}
}
@media(max-width:991px){
  body{padding-bottom:64px}
}