/* roulang page: index */
:root{
  --brand:#2A5BD7;
  --brand-deep:#1B3E9E;
  --brand-soft:rgba(42,91,215,.08);
  --accent:#FF6A3D;
  --accent-deep:#E85426;
  --accent-soft:rgba(255,106,61,.14);
  --ink:#101B2C;
  --ink-2:#55637A;
  --ink-3:#8A97AC;
  --line:#E3EAF5;
  --bg:#F5F8FD;
  --card:#FFFFFF;
  --ok:#16A34A;
  --warn:#F59E0B;
  --err:#DC2626;
  --r-card:14px;
  --r-btn:10px;
  --shadow:0 6px 24px rgba(31,64,124,.08);
  --shadow-lg:0 12px 32px rgba(31,64,124,.14);
  --font:"PingFang SC","Microsoft YaHei","Noto Sans SC",system-ui,sans-serif;
}
*,*::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:1.8;
  color:var(--ink);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border:0;}
a{color:var(--brand);text-decoration:none;transition:color .2s ease;}
a:hover{color:var(--brand-deep);}
button{font:inherit;color:inherit;cursor:pointer;border:0;background:none;}
ul,ol{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4{margin:0;font-weight:700;color:var(--ink);}
p{margin:0;}
figure{margin:0;}
table{border-collapse:collapse;width:100%;}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px;border-radius:4px;}

.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px;}
.section{padding:88px 0;}
.section--tight{padding:64px 0;}
.section--white{background:#fff;}
.section--mist{background:var(--bg);}

/* ---------- 通用标题 ---------- */
.sec-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:40px;}
.sec-head h2{font-size:30px;line-height:1.35;position:relative;padding-left:16px;}
.sec-head h2::before{
  content:"";position:absolute;left:0;top:6px;bottom:6px;width:5px;
  border-radius:3px;background:var(--brand);
}
.sec-head .sec-sub{margin-top:10px;color:var(--ink-2);font-size:15px;max-width:640px;}
.sec-more{font-size:15px;font-weight:500;display:inline-flex;align-items:center;gap:6px;white-space:nowrap;}
.sec-more svg{transition:transform .2s ease;}
.sec-more:hover svg{transform:translateX(4px);}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:46px;padding:0 24px;border-radius:var(--r-btn);
  font-size:15px;font-weight:500;line-height:1;
  transition:background .2s ease,color .2s ease,box-shadow .2s ease,transform .2s ease,border-color .2s ease;
  border:1px solid transparent;
}
.btn svg{flex:0 0 auto;}
.btn-primary{background:var(--accent);color:#fff;box-shadow:0 6px 18px rgba(255,106,61,.28);}
.btn-primary:hover{background:var(--accent-deep);color:#fff;transform:translateY(-2px);box-shadow:0 12px 26px rgba(255,106,61,.34);}
.btn-primary:active{transform:translateY(0);}
.btn-outline{background:#fff;color:var(--brand);border-color:#C6D6F5;}
.btn-outline:hover{background:var(--brand-soft);color:var(--brand-deep);border-color:var(--brand);}
.btn-ghost{background:#fff;color:var(--brand);border-color:var(--line);}
.btn-ghost:hover{background:var(--brand-soft);color:var(--brand-deep);border-color:#C6D6F5;}
.btn-pill{border-radius:999px;}
.btn-link{
  display:inline-flex;align-items:center;gap:6px;font-size:15px;font-weight:500;color:var(--brand);
  padding:0;
}
.btn-link svg{transition:transform .2s ease;}
.btn-link:hover svg{transform:translateX(4px);}
.btn[disabled],.btn.is-disabled{opacity:.4;pointer-events:none;}

/* ---------- 徽章 / 标签 ---------- */
.badge{
  display:inline-flex;align-items:center;gap:6px;
  height:26px;padding:0 12px;border-radius:999px;
  font-size:13px;font-weight:500;line-height:1;white-space:nowrap;
}
.badge-brand{background:var(--brand-soft);color:var(--brand-deep);}
.badge-accent{background:var(--accent-soft);color:var(--accent-deep);}
.badge-ok{background:rgba(22,163,74,.1);color:var(--ok);}
.badge-warn{background:rgba(245,158,11,.12);color:#B45309;}
.badge-mist{background:#EEF3FC;color:var(--ink-2);}

/* ---------- 导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(255,255,255,.94);
  backdrop-filter:saturate(150%) blur(6px);
  border-bottom:1px solid var(--line);
}
.nav-wrap{display:flex;align-items:center;height:64px;gap:0;}
.logo{display:inline-flex;align-items:center;gap:10px;flex:0 0 auto;}
.logo-mark{
  width:36px;height:36px;border-radius:10px;
  background:linear-gradient(160deg,var(--brand) 0%,#3C79F2 100%);
  display:flex;align-items:center;justify-content:center;color:#fff;
  box-shadow:0 4px 12px rgba(42,91,215,.28);
}
.logo-text{font-size:17px;font-weight:700;color:var(--ink);letter-spacing:.2px;}
.logo-text em{font-style:normal;color:var(--brand);}
.nav-main{display:flex;align-items:center;gap:28px;margin-left:36px;flex:1 1 auto;min-width:0;}
.nav-link{
  position:relative;font-size:15px;font-weight:500;color:var(--ink-2);
  padding:6px 0;white-space:nowrap;
}
.nav-link::after{
  content:"";position:absolute;left:0;right:0;bottom:0;height:2px;border-radius:2px;
  background:var(--brand);transform:scaleX(0);transform-origin:left;transition:transform .2s ease;
}
.nav-link:hover{color:var(--brand-deep);}
.nav-link:hover::after{transform:scaleX(1);}
.nav-link.is-active{color:var(--brand);font-weight:700;}
.nav-link.is-active::after{transform:scaleX(1);}
.nav-divider{width:1px;height:22px;background:var(--line);margin:0 20px;flex:0 0 auto;}
.nav-side{display:flex;align-items:center;gap:12px;flex:0 0 auto;}
.icon-btn{
  width:40px;height:40px;border-radius:10px;display:flex;align-items:center;justify-content:center;
  color:var(--ink-2);transition:background .2s ease,color .2s ease;
}
.icon-btn:hover{background:var(--brand-soft);color:var(--brand);}
.search-panel{
  border-top:1px solid var(--line);background:#fff;
  padding:16px 0;
}
.search-panel[hidden]{display:none;}
.search-form{display:flex;gap:12px;align-items:center;max-width:640px;}
.search-input{
  flex:1 1 auto;height:44px;padding:0 16px;font-size:15px;color:var(--ink);
  background:#fff;border:1px solid var(--line);border-radius:var(--r-btn);
  transition:border-color .2s ease,box-shadow .2s ease;
}
.search-input::placeholder{color:var(--ink-3);}
.search-input:focus{outline:none;border-color:var(--brand);box-shadow:0 0 0 4px rgba(42,91,215,.12);}
.hamburger{display:none;}

/* 移动抽屉 */
.mobile-panel{
  position:fixed;inset:0 0 0 auto;width:min(86vw,360px);
  background:#fff;z-index:80;transform:translateX(100%);
  transition:transform .28s ease;box-shadow:-16px 0 40px rgba(16,27,44,.16);
  padding:24px 22px 32px;overflow-y:auto;
}
.mobile-panel.is-open{transform:translateX(0);}
.mobile-mask{
  position:fixed;inset:0;background:rgba(16,27,44,.42);z-index:70;
  opacity:0;visibility:hidden;transition:opacity .25s ease,visibility .25s ease;
}
.mobile-mask.is-open{opacity:1;visibility:visible;}
.mobile-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:22px;}
.mobile-links{display:flex;flex-direction:column;gap:4px;margin-bottom:24px;}
.mobile-links a{
  padding:13px 12px;border-radius:10px;font-size:15px;font-weight:500;color:var(--ink);
  transition:background .2s ease,color .2s ease;
}
.mobile-links a:hover{background:var(--brand-soft);color:var(--brand-deep);}
.mobile-links a.is-active{background:var(--brand-soft);color:var(--brand);font-weight:700;}
.mobile-cta{display:flex;flex-direction:column;gap:12px;}

/* ---------- Hero ---------- */
.hero{padding:96px 0 72px;background:var(--bg);}
.hero-grid{display:grid;grid-template-columns:6fr 6fr;gap:48px;align-items:center;}
.hero-eyebrow{
  display:inline-flex;align-items:center;gap:8px;height:30px;padding:0 14px;
  border-radius:999px;background:#fff;border:1px solid var(--line);
  font-size:13px;color:var(--ink-2);margin-bottom:20px;box-shadow:var(--shadow);
}
.hero-eyebrow .dot{width:7px;height:7px;border-radius:50%;background:var(--ok);}
.hero h1{font-size:40px;line-height:1.3;letter-spacing:-.4px;}
.hero h1 span{color:var(--brand);}
.hero-lead{margin-top:18px;font-size:17px;line-height:1.85;color:var(--ink-2);max-width:540px;}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:32px;}
.trust-row{display:flex;flex-wrap:wrap;gap:28px;margin-top:36px;padding-top:26px;border-top:1px solid var(--line);}
.trust-item{display:flex;align-items:center;gap:10px;font-size:14px;color:var(--ink-2);font-weight:500;}
.trust-item .t-ico{
  width:32px;height:32px;border-radius:9px;background:var(--brand-soft);color:var(--brand);
  display:flex;align-items:center;justify-content:center;flex:0 0 auto;
}
.hero-canvas{
  position:relative;border-radius:var(--r-card);overflow:hidden;
  box-shadow:var(--shadow-lg);aspect-ratio:16/10;background:#DCE6F8;
}
.hero-canvas .hero-bg{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;opacity:.85;}
.hero-canvas::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(120deg,rgba(42,91,215,.34) 0%,rgba(16,27,44,.16) 62%,rgba(16,27,44,.42) 100%);
}
.device-frame{
  position:absolute;right:7%;bottom:-6%;width:42%;max-width:230px;
  background:#fff;border-radius:18px;padding:8px;box-shadow:0 20px 44px rgba(16,27,44,.34);
  z-index:2;
}
.device-frame img{border-radius:12px;aspect-ratio:3/4;object-fit:cover;width:100%;}
.hero-float{
  position:absolute;left:6%;top:12%;z-index:2;
  background:#fff;border-radius:12px;padding:12px 16px;box-shadow:var(--shadow-lg);
}
.hero-float strong{display:block;font-size:13px;color:var(--ink);}
.hero-float span{font-size:12px;color:var(--ink-3);}
.hero-float .bar{margin-top:8px;height:6px;width:120px;border-radius:999px;background:#EEF3FC;overflow:hidden;}
.hero-float .bar i{display:block;height:100%;width:72%;border-radius:999px;background:var(--brand);}

/* ---------- 价值区 1 大 2 小 ---------- */
.value-grid{display:grid;grid-template-columns:5fr 7fr;gap:24px;align-items:stretch;}
.card{
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);
  box-shadow:var(--shadow);transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease;
}
.card:hover{transform:translateY(-3px);box-shadow:var(--shadow-lg);border-color:#CFDDF5;}
.value-big{padding:32px;display:flex;flex-direction:column;justify-content:space-between;gap:26px;}
.value-big .v-ico{
  width:56px;height:56px;border-radius:14px;background:var(--brand-soft);color:var(--brand);
  display:flex;align-items:center;justify-content:center;
}
.value-big h3{font-size:22px;line-height:1.4;margin-bottom:12px;}
.value-big p{font-size:15px;color:var(--ink-2);line-height:1.85;}
.value-col{display:grid;grid-template-rows:1fr 1fr;gap:24px;}
.value-small{display:flex;gap:18px;padding:26px;align-items:flex-start;}
.value-small .v-ico{
  width:48px;height:48px;border-radius:12px;background:var(--brand-soft);color:var(--brand);
  display:flex;align-items:center;justify-content:center;flex:0 0 auto;
}
.value-small h3{font-size:18px;margin-bottom:8px;}
.value-small p{font-size:14.5px;color:var(--ink-2);line-height:1.8;max-width:440px;}
.value-small .badge{margin-bottom:10px;}

/* ---------- 截图轮播 ---------- */
.carousel-wrap{position:relative;}
.carousel{
  display:flex;gap:24px;overflow-x:auto;scroll-snap-type:x mandatory;
  padding:6px 2px 22px;scrollbar-width:none;
}
.carousel::-webkit-scrollbar{display:none;}
.shot-card{
  flex:0 0 calc((100% - 48px)/3);scroll-snap-align:start;
  background:#fff;border:1px solid var(--line);border-radius:var(--r-card);
  box-shadow:var(--shadow);overflow:hidden;
  transition:transform .22s ease,box-shadow .22s ease;
}
.shot-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-lg);}
.shot-card img{width:100%;aspect-ratio:16/10;object-fit:cover;}
.shot-body{padding:20px 22px 24px;}
.shot-body h3{font-size:17px;margin-bottom:8px;}
.shot-body p{font-size:14px;color:var(--ink-2);line-height:1.75;}
.carousel-nav{display:flex;align-items:center;justify-content:space-between;margin-top:6px;}
.dots{display:flex;gap:8px;align-items:center;}
.dots button{width:8px;height:8px;border-radius:50%;background:#CBD8EE;transition:background .2s ease,width .2s ease;}
.dots button.is-active{background:var(--brand);width:22px;border-radius:999px;}
.arrows{display:flex;gap:10px;}
.arrows button{
  width:42px;height:42px;border-radius:10px;border:1px solid var(--line);background:#fff;
  display:flex;align-items:center;justify-content:center;color:var(--ink-2);
  transition:background .2s ease,color .2s ease,border-color .2s ease;
}
.arrows button:hover{background:var(--brand-soft);color:var(--brand);border-color:#C6D6F5;}

/* ---------- 系统要求 ---------- */
.spec-table{background:#fff;border:1px solid var(--line);border-radius:var(--r-card);overflow:hidden;box-shadow:var(--shadow);}
.spec-table th,.spec-table td{padding:0 24px;text-align:left;font-size:15px;}
.spec-table thead th{
  height:56px;background:#EEF3FC;color:var(--ink-2);font-weight:500;font-size:14px;
  border-bottom:1px solid var(--line);
}
.spec-table tbody tr{height:52px;}
.spec-table tbody tr:nth-child(even){background:#FAFCFF;}
.spec-table tbody td{border-bottom:1px solid var(--line);color:var(--ink-2);}
.spec-table tbody tr:last-child td{border-bottom:0;}
.spec-table tbody td:first-child{color:var(--ink);font-weight:500;}
.spec-note{margin-top:18px;font-size:13px;color:var(--ink-3);}
.spec-mobile{display:none;}

/* ---------- 评价墙 ---------- */
.reviews{columns:2;column-gap:24px;}
.review{
  break-inside:avoid;margin-bottom:24px;padding:24px;
  background:#fff;border:1px solid var(--line);border-radius:var(--r-card);box-shadow:var(--shadow);
  transition:transform .22s ease,box-shadow .22s ease;
}
.review:hover{transform:translateY(-3px);box-shadow:var(--shadow-lg);}
.review-head{display:flex;align-items:center;gap:12px;margin-bottom:14px;}
.avatar{
  width:44px;height:44px;border-radius:50%;flex:0 0 auto;
  display:flex;align-items:center;justify-content:center;
  font-size:15px;font-weight:700;color:#fff;background:var(--brand);
}
.avatar.a2{background:#3F7BE0;}
.avatar.a3{background:#5A8FEA;}
.avatar.a4{background:var(--accent);}
.avatar.a5{background:#0F9D76;}
.avatar.a6{background:#7A6BE0;}
.review-head strong{display:block;font-size:15px;color:var(--ink);font-weight:700;}
.review-head span{font-size:12.5px;color:var(--ink-3);}
.stars{display:flex;gap:3px;margin-bottom:12px;color:var(--accent);}
.review p{font-size:14.5px;color:var(--ink-2);line-height:1.8;}
.review .src{margin-top:14px;font-size:12.5px;color:var(--ink-3);}

/* ---------- 下载面板 ---------- */
.download-panel{
  background:#EAF1FD;border-radius:20px;padding:56px 40px;text-align:center;
  border:1px solid #D8E4F8;
}
.download-panel h2{font-size:30px;line-height:1.35;}
.download-panel .dp-lead{margin:16px auto 0;max-width:620px;font-size:15.5px;color:var(--ink-2);}
.dp-btn{margin-top:30px;height:56px;padding:0 40px;font-size:17px;border-radius:999px;}
.dp-fields{display:flex;flex-wrap:wrap;justify-content:center;gap:14px;margin-top:26px;}
.dp-field{
  background:#fff;border:1px solid var(--line);border-radius:10px;padding:10px 18px;
  font-size:13px;color:var(--ink-2);min-width:150px;
}
.dp-field strong{display:block;color:var(--ink);font-size:14px;font-weight:500;}
.dp-systems{display:flex;flex-wrap:wrap;justify-content:center;gap:18px;margin-top:30px;}
.dp-sys{
  display:flex;align-items:center;gap:9px;background:#fff;border:1px solid var(--line);
  border-radius:999px;padding:9px 18px;font-size:14px;color:var(--ink-2);
}
.dp-sys svg{color:var(--brand);}
.qr-box{
  margin:30px auto 0;width:128px;height:128px;border-radius:14px;background:#fff;
  border:1px solid var(--line);display:grid;place-items:center;padding:12px;
}
.qr-box .qr-grid{
  width:100%;height:100%;border-radius:6px;
  background:
   linear-gradient(90deg,var(--ink) 8px,transparent 8px) 0 0/24px 24px,
   linear-gradient(180deg,var(--ink) 8px,transparent 8px) 8px 8px/24px 24px,
   repeating-conic-gradient(var(--ink) 0 25%,#fff 0 50%) 0 0/16px 16px;
  opacity:.86;
}
.dp-foot{margin-top:26px;font-size:13px;color:var(--ink-3);}

/* ---------- 资讯列表 ---------- */
.news-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;}
.news-card{
  display:flex;flex-direction:column;background:#fff;border:1px solid var(--line);
  border-radius:var(--r-card);overflow:hidden;box-shadow:var(--shadow);
  transition:transform .22s ease,box-shadow .22s ease;color:inherit;
}
.news-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-lg);color:inherit;}
.news-thumb{aspect-ratio:16/9;overflow:hidden;background:#E7EEFB;}
.news-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .3s ease;}
.news-card:hover .news-thumb img{transform:scale(1.04);}
.news-body{padding:20px 22px 24px;display:flex;flex-direction:column;gap:10px;flex:1 1 auto;}
.news-title{
  font-size:17px;line-height:1.55;font-weight:700;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.news-desc{
  font-size:14px;color:var(--ink-2);line-height:1.75;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.news-meta{margin-top:auto;padding-top:14px;border-top:1px solid var(--line);font-size:13px;color:var(--ink-3);}
.empty-state{
  grid-column:1/-1;text-align:center;padding:56px 24px;background:#fff;
  border:1px dashed #C9D8F2;border-radius:var(--r-card);
}
.empty-state .es-ico{
  width:56px;height:56px;border-radius:50%;background:var(--brand-soft);color:var(--brand);
  display:flex;align-items:center;justify-content:center;margin:0 auto 16px;
}
.empty-state p{font-size:15px;color:var(--ink-2);margin-bottom:16px;}

/* ---------- FAQ ---------- */
.faq-list{background:#fff;border:1px solid var(--line);border-radius:var(--r-card);overflow:hidden;box-shadow:var(--shadow);}
.faq-item{border-bottom:1px solid var(--line);}
.faq-item:last-child{border-bottom:0;}
.faq-item summary{
  list-style:none;cursor:pointer;position:relative;
  padding:0 56px 0 24px;min-height:56px;display:flex;align-items:center;
  font-size:16px;font-weight:500;color:var(--ink);
  transition:color .2s ease,background .2s ease;
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary:hover{color:var(--brand);background:#FAFCFF;}
.faq-item summary .chev{
  position:absolute;right:22px;top:50%;transform:translateY(-50%);
  color:var(--ink-3);transition:transform .2s ease,color .2s ease;
}
.faq-item[open] summary{color:var(--brand-deep);}
.faq-item[open] summary .chev{transform:translateY(-50%) rotate(180deg);color:var(--brand);}
.faq-item[open] summary::before{
  content:"";position:absolute;left:0;top:8px;bottom:8px;width:3px;border-radius:0 3px 3px 0;background:var(--brand);
}
.faq-answer{padding:2px 56px 22px 24px;font-size:15px;color:var(--ink-2);line-height:1.85;}

/* ---------- CTA 条 ---------- */
.cta-strip{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-card);
  padding:40px;display:flex;align-items:center;justify-content:space-between;gap:28px;
  box-shadow:var(--shadow);
}
.cta-strip h2{font-size:24px;line-height:1.4;margin-bottom:8px;}
.cta-strip p{font-size:15px;color:var(--ink-2);}
.cta-strip .cta-actions{display:flex;gap:14px;flex-wrap:wrap;flex:0 0 auto;}

/* ---------- 页脚 ---------- */
.site-footer{background:#0E1A2B;color:#B9C6DA;padding:64px 0 0;}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.1fr;gap:40px;padding-bottom:48px;}
.footer-brand .logo-text{color:#fff;}
.footer-brand .logo-mark{box-shadow:none;}
.footer-brand p{margin-top:18px;font-size:14px;line-height:1.85;color:#8FA0BB;max-width:300px;}
.footer-col h4{color:#fff;font-size:15px;margin-bottom:18px;font-weight:700;}
.footer-col ul{display:flex;flex-direction:column;gap:12px;}
.footer-col a{font-size:14px;color:#9FB0C9;}
.footer-col a:hover{color:var(--accent);}
.footer-col li{font-size:14px;color:#8FA0BB;}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.1);padding:22px 0 28px;
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:13px;color:#7C8CA6;
}
.footer-bottom .fb-links{display:flex;gap:20px;flex-wrap:wrap;}
.footer-bottom a{color:#9FB0C9;font-size:13px;}
.footer-bottom a:hover{color:var(--accent);}

/* ---------- 响应式 ---------- */
@media (max-width:1199px){
  .hero h1{font-size:36px;}
  .hero-grid{gap:36px;}
}
@media (max-width:991px){
  .nav-main,.nav-divider{display:none;}
  .hamburger{display:flex;}
  .section{padding:64px 0;}
  .hero{padding:76px 0 56px;}
  .hero-grid{grid-template-columns:1fr;gap:40px;}
  .hero h1{font-size:32px;}
  .hero-visual{order:2;}
  .hero-canvas{aspect-ratio:16/10;}
  .value-grid{grid-template-columns:1fr;}
  .shot-card{flex:0 0 calc((100% - 24px)/2);}
  .news-grid{grid-template-columns:repeat(2,1fr);}
  .reviews{columns:1;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
  .cta-strip{flex-direction:column;align-items:flex-start;}
}
@media (max-width:767px){
  .container{padding:0 20px;}
  .section{padding:56px 0;}
  .hero{padding:76px 0 48px;}
  .hero h1{font-size:26px;line-height:1.35;}
  .hero-lead{font-size:15px;}
  .hero-actions{flex-direction:column;align-items:stretch;}
  .hero-actions .btn{width:100%;}
  .trust-row{gap:18px;}
  .sec-head{flex-direction:column;align-items:flex-start;gap:12px;margin-bottom:28px;}
  .sec-head h2{font-size:22px;}
  .value-big{padding:24px;}
  .value-big h3{font-size:19px;}
  .value-small{padding:20px;gap:14px;}
  .shot-card{flex:0 0 82%;}
  .arrows{display:none;}
  .spec-table{display:none;}
  .spec-mobile{display:grid;gap:16px;}
  .spec-card{background:#fff;border:1px solid var(--line);border-radius:var(--r-card);box-shadow:var(--shadow);overflow:hidden;}
  .spec-card h3{
    font-size:16px;padding:16px 18px;background:#EEF3FC;border-bottom:1px solid var(--line);
  }
  .spec-card dl{margin:0;padding:8px 18px 16px;}
  .spec-card .spec-row{display:flex;justify-content:space-between;gap:16px;padding:11px 0;border-bottom:1px solid var(--line);font-size:14px;}
  .spec-card .spec-row:last-child{border-bottom:0;}
  .spec-card dt{color:var(--ink-3);}
  .spec-card dd{margin:0;color:var(--ink);text-align:right;}
  .news-grid{grid-template-columns:1fr;}
  .download-panel{padding:36px 20px;border-radius:16px;}
  .download-panel h2{font-size:22px;}
  .dp-btn{width:100%;padding:0 24px;}
  .cta-strip{padding:26px 22px;}
  .cta-strip h2{font-size:20px;}
  .cta-strip .cta-actions{width:100%;flex-direction:column;}
  .cta-strip .cta-actions .btn{width:100%;}
  .faq-item summary{font-size:15px;padding:14px 48px 14px 18px;min-height:56px;}
  .faq-answer{padding:0 48px 18px 18px;}
  .footer-grid{grid-template-columns:1fr;gap:30px;padding-bottom:36px;}
  .footer-bottom{flex-direction:column;align-items:flex-start;}
}
@media (max-width:479px){
  .hero h1{font-size:26px;}
  .logo-text{font-size:15px;}
  .trust-item{font-size:13px;}
}

/* roulang page: category1 */
:root{
  --brand:#2A5BD7;
  --brand-deep:#1B3E9E;
  --accent:#FF6A3D;
  --accent-deep:#E5532A;
  --ink:#101B2C;
  --muted:#55637A;
  --faint:#8A97AC;
  --line:#E3EAF5;
  --bg:#F5F8FD;
  --card:#FFFFFF;
  --ok:#16A34A;
  --warn:#F59E0B;
  --err:#DC2626;
  --deep:#0E1A2B;
  --r-card:14px;
  --r-btn:10px;
  --r-pill:999px;
  --sh:0 6px 24px rgba(31,64,124,.08);
  --sh-hover:0 12px 32px rgba(31,64,124,.14);
  --ease:.22s cubic-bezier(.4,0,.2,1);
  --sp-section:88px;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC",system-ui,sans-serif;
  font-size:16px;
  line-height:1.8;
  color:var(--ink);
  background:var(--bg);
}
img{max-width:100%;display:block;border:0;}
a{color:var(--brand);text-decoration:none;transition:color var(--ease);}
a:hover{color:var(--brand-deep);}
button{font-family:inherit;}
h1,h2,h3,h4{margin:0;font-weight:700;color:var(--ink);}
p{margin:0;}
ul,ol{margin:0;padding:0;list-style:none;}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px;}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px;}
.section{padding:var(--sp-section) 0;}
.section-head{margin-bottom:36px;}
.section-head h2{
  font-size:30px;
  line-height:1.4;
  position:relative;
  padding-left:16px;
}
.section-head h2::before{
  content:"";
  position:absolute;
  left:0;top:6px;bottom:6px;
  width:5px;border-radius:3px;background:var(--brand);
}
.section-head p{margin-top:12px;color:var(--muted);max-width:760px;}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;font-weight:500;color:var(--brand);
  background:rgba(42,91,215,.08);
  border-radius:var(--r-pill);
  padding:5px 14px;
  margin-bottom:16px;
}
.eyebrow::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--brand);}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:46px;padding:0 22px;
  border-radius:var(--r-btn);
  font-size:15px;font-weight:500;
  border:1px solid transparent;
  cursor:pointer;
  text-decoration:none;
  transition:all var(--ease);
  white-space:nowrap;
}
.btn-primary{
  background:var(--accent);color:#fff;border-radius:var(--r-pill);
  box-shadow:0 6px 18px rgba(255,106,61,.28);
}
.btn-primary:hover{background:var(--accent-deep);color:#fff;transform:translateY(-2px);box-shadow:0 10px 26px rgba(255,106,61,.34);}
.btn-primary:active{transform:translateY(0);}
.btn-ghost{background:#fff;color:var(--brand);border-color:var(--brand);}
.btn-ghost:hover{background:rgba(42,91,215,.08);border-color:var(--brand-deep);color:var(--brand-deep);transform:translateY(-2px);}
.btn-text{
  background:transparent;color:var(--brand);padding:0;height:auto;
  border:0;
}
.btn-text .arw{transition:transform var(--ease);}
.btn-text:hover .arw{transform:translateX(4px);}
.btn-sm{height:40px;padding:0 18px;font-size:14px;}
.btn[disabled],.btn.is-disabled{opacity:.4;cursor:not-allowed;transform:none;box-shadow:none;}

/* ============ 导航 ============ */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(255,255,255,.96);
  backdrop-filter:saturate(180%) blur(6px);
  border-bottom:1px solid var(--line);
}
.header-inner{
  display:flex;align-items:center;gap:24px;
  height:64px;
}
.logo{display:inline-flex;align-items:center;gap:10px;flex-shrink:0;}
.logo-mark{
  width:34px;height:34px;border-radius:10px;
  display:inline-flex;align-items:center;justify-content:center;
  background:var(--brand);color:#fff;
  box-shadow:0 4px 12px rgba(42,91,215,.28);
}
.logo-text{
  font-size:17px;font-weight:700;color:var(--ink);letter-spacing:.2px;
}
.logo-text em{font-style:normal;color:var(--brand);}
.nav-main{
  display:flex;align-items:center;gap:28px;
  margin-left:8px;padding-left:24px;
  border-left:1px solid var(--line);
  height:36px;
}
.nav-link{
  font-size:15px;font-weight:500;color:var(--muted);
  position:relative;padding:6px 0;transition:color var(--ease);
}
.nav-link:hover{color:var(--brand);}
.nav-link.is-active{color:var(--brand);}
.nav-link.is-active::after{
  content:"";position:absolute;left:0;right:0;bottom:-2px;height:2px;
  border-radius:2px;background:var(--brand);
}
.header-actions{margin-left:auto;display:flex;align-items:center;gap:12px;}
.icon-btn{
  width:40px;height:40px;border-radius:var(--r-btn);
  border:1px solid var(--line);background:#fff;color:var(--muted);
  display:inline-flex;align-items:center;justify-content:center;
  cursor:pointer;transition:all var(--ease);
}
.icon-btn:hover{color:var(--brand);border-color:rgba(42,91,215,.4);background:rgba(42,91,215,.06);}
.menu-toggle{
  display:none;width:40px;height:40px;border-radius:var(--r-btn);
  border:1px solid var(--line);background:#fff;color:var(--ink);
  cursor:pointer;align-items:center;justify-content:center;
}
.menu-toggle:hover{border-color:rgba(42,91,215,.4);color:var(--brand);}
.mobile-panel{
  display:none;
  border-top:1px solid var(--line);
  background:#fff;
  padding:16px 24px 24px;
}
.mobile-panel .m-link{
  display:block;padding:13px 0;font-size:15px;font-weight:500;
  color:var(--muted);border-bottom:1px solid var(--line);
}
.mobile-panel .m-link.is-active{color:var(--brand);}
.mobile-panel .m-cta{margin-top:18px;display:grid;gap:12px;}
.mobile-panel .btn{width:100%;}
body.nav-open .mobile-panel{display:block;}

/* ============ 面包屑 ============ */
.crumb{
  display:flex;align-items:center;gap:8px;
  font-size:12px;color:var(--faint);
  padding:20px 0 0;
  flex-wrap:wrap;
}
.crumb a{color:var(--faint);}
.crumb a:hover{color:var(--brand);}
.crumb .sep{color:#C3CEE0;}
.crumb .cur{color:var(--muted);}

/* ============ Hero 5:7 ============ */
.hero-wrap{padding:28px 0 var(--sp-section);}
.hero-grid{
  display:grid;
  grid-template-columns:5fr 7fr;
  gap:48px;
  align-items:center;
}
.hero-copy h1{
  font-size:38px;line-height:1.3;letter-spacing:-.2px;
}
.hero-copy h1 .hl{color:var(--brand);}
.hero-sub{
  margin-top:18px;font-size:17px;line-height:1.85;color:var(--muted);max-width:520px;
}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:28px;align-items:center;}
.trust-row{
  display:flex;flex-wrap:wrap;gap:22px;margin-top:30px;
  padding-top:24px;border-top:1px solid var(--line);
}
.trust-item{display:flex;align-items:center;gap:9px;font-size:14px;color:var(--muted);font-weight:500;}
.trust-item svg{color:var(--brand);flex-shrink:0;}

.hero-visual{position:relative;}
.hero-media{
  border-radius:var(--r-card);
  overflow:hidden;
  aspect-ratio:16/10;
  box-shadow:var(--sh-hover);
  background:#DDE6F5;
}
.hero-media img{width:100%;height:100%;object-fit:cover;}
.hero-float{
  position:absolute;left:-22px;bottom:-24px;
  background:#fff;border:1px solid var(--line);border-radius:var(--r-card);
  box-shadow:var(--sh);
  padding:16px 20px;
  display:flex;align-items:center;gap:14px;
  min-width:230px;
}
.hero-float .hf-num{
  font-size:26px;font-weight:700;color:var(--brand);line-height:1.1;
  font-family:system-ui,"PingFang SC",sans-serif;
}
.hero-float .hf-txt{font-size:13px;color:var(--muted);line-height:1.6;}

/* ============ 步骤条 ============ */
.steps-layout{
  display:grid;grid-template-columns:7fr 5fr;gap:40px;align-items:start;
}
.step-list{position:relative;}
.step{
  position:relative;
  display:flex;gap:20px;
  padding-bottom:28px;
}
.step:last-child{padding-bottom:0;}
.step:not(:last-child)::after{
  content:"";position:absolute;left:19px;top:46px;bottom:6px;width:2px;
  background:var(--line);
}
.step-num{
  flex-shrink:0;width:40px;height:40px;border-radius:8px;
  background:rgba(42,91,215,.08);color:var(--brand);
  font-weight:700;font-size:15px;
  display:flex;align-items:center;justify-content:center;
  font-family:system-ui,"PingFang SC",sans-serif;
  position:relative;z-index:1;
}
.step-body{
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);
  box-shadow:var(--sh);
  padding:20px 24px;flex:1;
  transition:all var(--ease);
}
.step:hover .step-body{box-shadow:var(--sh-hover);transform:translateY(-3px);}
.step-body h3{font-size:17px;margin-bottom:8px;}
.step-body p{color:var(--muted);font-size:15px;line-height:1.8;}
.step-body .tagline{margin-top:12px;}
.tag{
  display:inline-flex;align-items:center;
  font-size:13px;font-weight:500;
  padding:3px 11px;border-radius:var(--r-pill);
  background:rgba(42,91,215,.08);color:var(--brand);
  margin-right:8px;
}
.tag.tag-accent{background:rgba(255,106,61,.1);color:var(--accent-deep);}
.tag.tag-ok{background:rgba(22,163,74,.1);color:var(--ok);}
.tag.tag-warn{background:rgba(245,158,11,.12);color:#B87508;}

.side-card{
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);
  box-shadow:var(--sh);overflow:hidden;
}
.side-card .sc-img{aspect-ratio:16/9;overflow:hidden;background:#DDE6F5;}
.side-card .sc-img img{width:100%;height:100%;object-fit:cover;}
.side-card .sc-body{padding:24px;}
.side-card h3{font-size:18px;margin-bottom:12px;}
.side-list{margin-top:6px;}
.side-list li{
  display:flex;gap:10px;align-items:flex-start;
  font-size:14.5px;color:var(--muted);line-height:1.75;
  padding:9px 0;border-bottom:1px dashed var(--line);
}
.side-list li:last-child{border-bottom:0;}
.side-list li::before{
  content:"";flex-shrink:0;width:6px;height:6px;border-radius:50%;
  background:var(--brand);margin-top:11px;
}

/* ============ 常见提示卡 ============ */
.tip-grid{
  display:grid;grid-template-columns:repeat(4,1fr);gap:24px;
}
.tip-card{
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);
  box-shadow:var(--sh);padding:24px;transition:all var(--ease);
}
.tip-card:hover{box-shadow:var(--sh-hover);transform:translateY(-3px);}
.tip-ico{
  width:42px;height:42px;border-radius:10px;
  display:flex;align-items:center;justify-content:center;
  background:rgba(42,91,215,.08);color:var(--brand);
  margin-bottom:16px;
}
.tip-card h3{font-size:17px;margin-bottom:10px;}
.tip-card p{font-size:14.5px;color:var(--muted);line-height:1.75;}

/* ============ 参数卡两列 ============ */
.param-grid{display:grid;grid-template-columns:1fr 1fr;gap:24px;}
.param-card{
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);
  box-shadow:var(--sh);padding:28px;
}
.param-card h3{
  font-size:19px;padding-bottom:16px;margin-bottom:8px;
  border-bottom:1px solid var(--line);
}
.param-row{
  display:flex;justify-content:space-between;gap:20px;
  padding:15px 0;border-bottom:1px dashed var(--line);
}
.param-row:last-child{border-bottom:0;}
.param-row dt{font-size:14.5px;color:var(--muted);font-weight:500;}
.param-row dd{
  margin:0;font-size:14.5px;color:var(--ink);font-weight:500;text-align:right;
  font-family:system-ui,"PingFang SC",sans-serif;
}
.param-note{
  margin-top:18px;font-size:13px;color:var(--faint);
  background:var(--bg);border-radius:var(--r-btn);padding:12px 14px;line-height:1.7;
}

/* ============ 内链横排卡 ============ */
.link-list{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;}
.link-card{
  display:flex;gap:16px;align-items:center;
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);
  box-shadow:var(--sh);padding:16px;transition:all var(--ease);
}
.link-card:hover{box-shadow:var(--sh-hover);transform:translateY(-3px);}
.link-card .lc-img{
  width:92px;height:72px;border-radius:10px;overflow:hidden;flex-shrink:0;background:#DDE6F5;
}
.link-card .lc-img img{width:100%;height:100%;object-fit:cover;}
.link-card h3{font-size:16px;margin-bottom:6px;}
.link-card p{font-size:13.5px;color:var(--muted);line-height:1.7;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.link-card .lc-go{font-size:13px;color:var(--brand);margin-top:8px;display:inline-flex;align-items:center;gap:6px;}

/* ============ FAQ ============ */
.faq-wrap{max-width:860px;}
.faq-item{
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);
  box-shadow:var(--sh);margin-bottom:14px;overflow:hidden;position:relative;
  transition:box-shadow var(--ease);
}
.faq-item:hover{box-shadow:var(--sh-hover);}
.faq-item::before{
  content:"";position:absolute;left:0;top:0;bottom:0;width:3px;
  background:var(--brand);transform:scaleY(0);transform-origin:top;
  transition:transform .2s ease;
}
.faq-item[open]::before{transform:scaleY(1);}
.faq-item summary{
  list-style:none;cursor:pointer;
  padding:0 24px;min-height:56px;
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  font-size:16px;font-weight:500;color:var(--ink);
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary .chev{
  flex-shrink:0;color:var(--faint);transition:transform .2s ease,color .2s ease;
}
.faq-item[open] summary .chev{transform:rotate(180deg);color:var(--brand);}
.faq-item .faq-ans{
  padding:0 24px 22px;color:var(--muted);font-size:15px;line-height:1.85;
}
.faq-item[open] summary{border-bottom:0;}

/* ============ CTA 面板 ============ */
.cta-panel{
  background:var(--card);
  border:1px solid var(--line);
  border-radius:20px;
  box-shadow:var(--sh);
  padding:52px 48px;
  text-align:center;
  position:relative;
  overflow:hidden;
}
.cta-panel::after{
  content:"";position:absolute;right:-60px;top:-60px;width:220px;height:220px;
  border-radius:50%;background:rgba(42,91,215,.06);
}
.cta-panel h2{font-size:28px;position:relative;z-index:1;}
.cta-panel p{
  margin:16px auto 0;color:var(--muted);max-width:640px;font-size:16px;
  position:relative;z-index:1;
}
.cta-actions{
  display:flex;justify-content:center;gap:16px;flex-wrap:wrap;
  margin-top:30px;position:relative;z-index:1;
}
.cta-foot{
  margin-top:22px;font-size:13px;color:var(--faint);position:relative;z-index:1;
}

/* ============ 页脚 ============ */
.site-footer{background:var(--deep);color:#9FB0C6;margin-top:var(--sp-section);}
.footer-grid{
  display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:40px;
  padding:64px 0 44px;
}
.footer-brand .logo{margin-bottom:16px;}
.footer-brand .logo-text{color:#fff;}
.footer-brand .logo-text em{color:#7FA0F0;}
.footer-brand .logo-mark{background:#1E4CB8;box-shadow:none;}
.footer-brand p{font-size:14px;line-height:1.85;color:#8FA1B8;max-width:320px;}
.footer-col h4{font-size:15px;color:#fff;margin-bottom:18px;font-weight:500;}
.footer-col ul li{margin-bottom:12px;font-size:14px;color:#8FA1B8;line-height:1.7;}
.footer-col ul li a{color:#8FA1B8;}
.footer-col ul li a:hover{color:var(--accent);}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.1);
  padding:22px 0 30px;
  display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:13px;color:#7A8CA3;
}
.fb-links{display:flex;gap:20px;flex-wrap:wrap;}
.fb-links a{color:#7A8CA3;}
.fb-links a:hover{color:var(--accent);}

/* ============ 响应式 ============ */
@media (max-width:1199px){
  .hero-copy h1{font-size:32px;}
  .tip-grid{grid-template-columns:repeat(2,1fr);}
}
@media (max-width:991px){
  :root{--sp-section:64px;}
  .nav-main{display:none;}
  .menu-toggle{display:inline-flex;}
  .header-actions .btn{display:none;}
  .hero-grid{grid-template-columns:1fr;gap:36px;}
  .hero-copy h1{font-size:30px;}
  .hero-media{aspect-ratio:16/9;}
  .hero-float{left:16px;bottom:-18px;}
  .steps-layout{grid-template-columns:1fr;gap:32px;}
  .link-list{grid-template-columns:1fr;}
  .param-grid{grid-template-columns:1fr;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;padding:48px 0 32px;}
  .cta-panel{padding:40px 28px;}
  .cta-panel h2{font-size:23px;}
}
@media (max-width:767px){
  :root{--sp-section:56px;}
  .container{padding:0 20px;}
  body{font-size:15px;line-height:1.75;}
  .section-head h2{font-size:22px;}
  .hero-copy h1{font-size:26px;line-height:1.35;}
  .hero-sub{font-size:15.5px;}
  .hero-actions{flex-direction:column;align-items:stretch;}
  .hero-actions .btn{width:100%;}
  .hero-actions .btn-text{width:auto;justify-content:center;}
  .trust-row{gap:14px 20px;}
  .hero-float{position:static;margin-top:14px;width:100%;}
  .tip-grid{grid-template-columns:1fr;gap:18px;}
  .step-body{padding:18px;}
  .step{gap:14px;}
  .step:not(:last-child)::after{left:19px;}
  .link-card{flex-direction:column;align-items:flex-start;}
  .link-card .lc-img{width:100%;height:150px;}
  .footer-grid{grid-template-columns:1fr;}
  .footer-bottom{flex-direction:column;}
  .cta-actions{flex-direction:column;}
  .cta-actions .btn{width:100%;}
  .faq-item summary{padding:0 18px;font-size:15px;}
  .faq-item .faq-ans{padding:0 18px 20px;}
}
@media (max-width:479px){
  .hero-copy h1{font-size:24px;}
  .logo-text{font-size:15px;}
  .param-card{padding:20px;}
  .cta-panel{padding:32px 20px;}
}

/* roulang page: article */
:root{
  --brand:#2A5BD7;
  --brand-deep:#1B3E9E;
  --brand-soft:rgba(42,91,215,.08);
  --accent:#FF6A3D;
  --accent-deep:#E8552A;
  --ink:#101B2C;
  --ink-2:#55637A;
  --ink-3:#8A97AC;
  --line:#E3EAF5;
  --page:#F5F8FD;
  --card:#FFFFFF;
  --ok:#16A34A;
  --warn:#F59E0B;
  --err:#DC2626;
  --r-lg:14px;
  --r-sm:10px;
  --shadow:0 6px 24px rgba(31,64,124,.08);
  --shadow-hv:0 12px 32px rgba(31,64,124,.14);
  --container:1200px;
  --header-h:64px;
  --font:"PingFang SC","Microsoft YaHei","Noto Sans SC",system-ui,sans-serif;
}

*,*::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:1.8;
  color:var(--ink);
  background:var(--page);
}
img{max-width:100%;display:block;border:0;}
a{color:var(--brand);text-decoration:none;transition:color .2s ease;}
a:hover{color:var(--brand-deep);}
button{font-family:inherit;}
h1,h2,h3,h4,p,figure,blockquote,dl,dd{margin:0;}
ul,ol{margin:0;padding:0;list-style:none;}
svg{flex:none;}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px;border-radius:6px;}

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

/* ---------- header ---------- */
.site-header{
  position:sticky;top:0;z-index:80;
  background:#fff;
  border-bottom:1px solid var(--line);
}
.header-inner{
  display:flex;align-items:center;gap:22px;
  height:var(--header-h);
}
.logo{display:inline-flex;align-items:center;gap:10px;color:var(--ink);font-weight:700;font-size:18px;letter-spacing:.2px;}
.logo:hover{color:var(--ink);}
.logo-mark{
  width:34px;height:34px;border-radius:9px;
  background:var(--brand-soft);color:var(--brand);
  display:grid;place-items:center;
}
.logo-text em{font-style:normal;color:var(--brand);}

.nav-main{
  display:flex;align-items:center;gap:28px;
  margin-left:6px;padding-left:24px;
  border-left:1px solid var(--line);
}
.nav-link{
  position:relative;
  font-size:15px;font-weight:500;color:var(--ink-2);
  padding:6px 0;white-space:nowrap;
}
.nav-link:hover{color:var(--brand);}
.nav-link.is-active{color:var(--brand);}
.nav-link.is-active::after{
  content:"";position:absolute;left:0;right:0;bottom:-1px;height:2px;
  border-radius:2px;background:var(--brand);
}

.header-side{margin-left:auto;display:flex;align-items:center;gap:12px;}
.icon-btn{
  width:40px;height:40px;border-radius:10px;
  border:1px solid var(--line);background:#fff;color:var(--ink-2);
  display:grid;place-items:center;cursor:pointer;
  transition:background .2s ease,color .2s ease,border-color .2s ease;
}
.icon-btn:hover{background:var(--brand-soft);color:var(--brand);border-color:rgba(42,91,215,.28);}

.nav-toggle{
  display:none;width:40px;height:40px;border-radius:10px;
  border:1px solid var(--line);background:#fff;color:var(--ink);
  place-items:center;cursor:pointer;
}
.nav-toggle:hover{background:var(--brand-soft);color:var(--brand);}

.search-panel{
  position:absolute;right:24px;top:calc(100% + 8px);
  background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);
  box-shadow:var(--shadow-hv);padding:16px;width:min(420px,calc(100vw - 40px));
}
.search-panel[hidden]{display:none;}
.search-form{display:flex;gap:10px;}
.search-input{
  flex:1;height:44px;min-width:0;
  border:1px solid var(--line);border-radius:var(--r-sm);
  padding:0 14px;font-size:15px;color:var(--ink);background:#fff;
  transition:border-color .2s ease,box-shadow .2s ease;
}
.search-input::placeholder{color:var(--ink-3);}
.search-input:focus{outline:none;border-color:var(--brand);box-shadow:0 0 0 4px rgba(42,91,215,.12);}

.mobile-drawer{
  position:fixed;inset:0 0 0 auto;width:min(320px,86vw);
  background:#fff;z-index:120;
  transform:translateX(102%);
  transition:transform .28s ease;
  box-shadow:-12px 0 40px rgba(16,27,44,.16);
  padding:24px 22px;overflow-y:auto;
}
.mobile-drawer.is-open{transform:translateX(0);}
.drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:20px;}
.drawer-title{font-size:16px;font-weight:700;}
.drawer-close{width:36px;height:36px;border-radius:9px;border:1px solid var(--line);background:#fff;color:var(--ink-2);display:grid;place-items:center;cursor:pointer;}
.drawer-nav{display:flex;flex-direction:column;gap:4px;}
.drawer-nav a{
  padding:13px 12px;border-radius:var(--r-sm);
  color:var(--ink-2);font-size:15px;font-weight:500;
}
.drawer-nav a:hover{background:var(--brand-soft);color:var(--brand);}
.drawer-nav a.is-active{background:var(--brand-soft);color:var(--brand);}
.drawer-cta{margin-top:20px;display:grid;gap:10px;}
.drawer-mask{
  position:fixed;inset:0;background:rgba(16,27,44,.42);z-index:110;
  opacity:0;visibility:hidden;transition:opacity .28s ease,visibility .28s ease;
}
.drawer-mask.is-open{opacity:1;visibility:visible;}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:46px;padding:0 22px;border-radius:var(--r-sm);
  font-size:15px;font-weight:500;cursor:pointer;
  border:1px solid transparent;
  transition:background .2s ease,color .2s ease,border-color .2s ease,box-shadow .2s ease,transform .2s ease;
  white-space:nowrap;
}
.btn-sm{height:38px;padding:0 16px;font-size:14px;}
.btn-primary{background:var(--brand);color:#fff;}
.btn-primary:hover{background:var(--brand-deep);color:#fff;transform:translateY(-2px);box-shadow:0 10px 22px rgba(42,91,215,.28);}
.btn-accent{background:var(--accent);color:#fff;border-radius:999px;}
.btn-accent:hover{background:var(--accent-deep);color:#fff;transform:translateY(-2px);box-shadow:0 12px 26px rgba(255,106,61,.3);}
.btn-ghost{background:#fff;color:var(--brand);border-color:rgba(42,91,215,.42);}
.btn-ghost:hover{background:var(--brand-soft);border-color:var(--brand);color:var(--brand-deep);transform:translateY(-2px);}
.btn-text{
  background:transparent;color:var(--brand);height:auto;padding:4px 0;gap:6px;
}
.btn-text:hover{color:var(--brand-deep);}
.btn-text .arrow{transition:transform .2s ease;}
.btn-text:hover .arrow{transform:translateX(4px);}
.btn:disabled,.btn[aria-disabled="true"]{opacity:.4;cursor:not-allowed;transform:none;box-shadow:none;}

/* ---------- badges ---------- */
.badge{
  display:inline-flex;align-items:center;gap:6px;
  height:24px;padding:0 10px;border-radius:999px;
  font-size:12px;font-weight:500;line-height:1;
}
.badge-brand{background:var(--brand-soft);color:var(--brand-deep);}
.badge-accent{background:rgba(255,106,61,.12);color:var(--accent-deep);}
.badge-ok{background:rgba(22,163,74,.1);color:var(--ok);}
.badge-warn{background:rgba(245,158,11,.12);color:#B45309;}

/* ---------- page banner ---------- */
.page-banner{position:relative;background:var(--page);border-bottom:1px solid var(--line);overflow:hidden;}
.page-banner::before{
  content:"";position:absolute;inset:0;
  background:url("/assets/images/backpic/back-2.webp") center/cover no-repeat;
  opacity:.13;
}
.page-banner::after{
  content:"";position:absolute;left:0;top:0;bottom:0;width:5px;background:var(--brand);
  opacity:.9;
}
.banner-inner{position:relative;padding:34px 0 38px;}

.breadcrumb{
  display:flex;align-items:center;gap:8px;flex-wrap:wrap;
  font-size:12px;color:var(--ink-3);
}
.breadcrumb a{color:var(--ink-3);}
.breadcrumb a:hover{color:var(--brand);}
.breadcrumb .sep{color:#C3CEDF;}
.crumb-current{
  max-width:520px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;
  color:var(--ink-2);
}

.article-title{
  font-size:32px;line-height:1.4;font-weight:700;
  margin:16px 0 18px;max-width:920px;
}
.meta-bar{
  display:flex;flex-wrap:wrap;align-items:center;gap:10px 18px;
  padding-top:16px;border-top:1px solid var(--line);
  font-size:13px;color:var(--ink-3);
}
.meta-item{display:inline-flex;align-items:center;gap:6px;}
.meta-item svg{color:var(--ink-3);}
.meta-sep{width:1px;height:12px;background:var(--line);}

/* ---------- layout ---------- */
.layout{
  display:grid;grid-template-columns:minmax(0,1fr) 300px;
  gap:40px;align-items:start;
  padding:44px 0 72px;
}
.article-card{
  background:var(--card);border:1px solid var(--line);
  border-radius:var(--r-lg);box-shadow:var(--shadow);
  padding:38px 40px;
}
.article-body{max-width:760px;font-size:17px;line-height:1.9;color:var(--ink);}
.article-body > *:first-child{margin-top:0;}
.article-body p{margin:0 0 18px;color:var(--ink-2);}
.article-body h2{
  font-size:24px;font-weight:700;line-height:1.45;
  margin:40px 0 16px;padding-left:14px;
  border-left:4px solid var(--brand);
  color:var(--ink);
}
.article-body h3{font-size:20px;font-weight:700;line-height:1.5;margin:26px 0 12px;color:var(--ink);}
.article-body h4{font-size:17px;font-weight:700;margin:20px 0 10px;}
.article-body ul,.article-body ol{margin:0 0 18px;padding-left:22px;}
.article-body ul{list-style:disc;}
.article-body ol{list-style:decimal;}
.article-body li{margin:7px 0;color:var(--ink-2);line-height:1.85;}
.article-body strong{color:var(--ink);font-weight:700;}
.article-body blockquote{
  margin:22px 0;padding:16px 20px;
  background:var(--page);border-left:4px solid var(--brand);
  border-radius:0 var(--r-sm) var(--r-sm) 0;
  color:var(--ink-2);
}
.article-body blockquote p:last-child{margin-bottom:0;}
.article-body img{border-radius:12px;margin:20px 0;}
.article-body figure{margin:22px 0;}
.article-body figcaption{font-size:13px;color:var(--ink-3);text-align:center;margin-top:8px;}
.article-body table{width:100%;border-collapse:collapse;margin:22px 0;font-size:15px;border-radius:var(--r-sm);overflow:hidden;}
.article-body th,.article-body td{padding:12px 14px;text-align:left;border-bottom:1px solid var(--line);}
.article-body thead th{background:var(--page);color:var(--ink);font-weight:500;}
.article-body tbody tr:nth-child(even){background:#FAFCFF;}
.article-body a{color:var(--brand);border-bottom:1px solid rgba(42,91,215,.3);}
.article-body a:hover{color:var(--brand-deep);border-bottom-color:var(--brand-deep);}
.article-body hr{border:0;border-top:1px solid var(--line);margin:32px 0;}

.empty-state{
  display:flex;flex-direction:column;align-items:center;text-align:center;
  padding:56px 20px;gap:10px;
}
.empty-icon{
  width:64px;height:64px;border-radius:18px;
  background:var(--brand-soft);color:var(--brand);
  display:grid;place-items:center;margin-bottom:6px;
}
.empty-title{font-size:20px;font-weight:700;}
.empty-desc{color:var(--ink-2);font-size:15px;max-width:420px;margin-bottom:12px;}

/* ---------- aside ---------- */
.article-aside{position:relative;}
.aside-inner{position:sticky;top:88px;display:grid;gap:20px;}
.aside-card{
  background:var(--card);border:1px solid var(--line);
  border-radius:var(--r-lg);box-shadow:var(--shadow);padding:22px;
}
.aside-title{
  display:flex;align-items:center;gap:8px;
  font-size:15px;font-weight:700;margin-bottom:14px;
}
.aside-title::before{content:"";width:3px;height:14px;border-radius:2px;background:var(--brand);}
.toc-list{display:grid;gap:2px;}
.toc-list a{
  display:block;padding:8px 10px;border-radius:8px;
  font-size:14px;color:var(--ink-2);line-height:1.6;
}
.toc-list a:hover{background:var(--brand-soft);color:var(--brand);}
.toc-list a.is-current{background:var(--brand-soft);color:var(--brand);font-weight:500;}
.aside-links{display:grid;gap:10px;}
.aside-link{
  display:flex;align-items:center;justify-content:space-between;gap:10px;
  padding:12px 14px;border:1px solid var(--line);border-radius:var(--r-sm);
  font-size:14px;color:var(--ink-2);transition:border-color .2s ease,background .2s ease,transform .2s ease;
}
.aside-link:hover{border-color:rgba(42,91,215,.35);background:var(--brand-soft);color:var(--brand);transform:translateY(-2px);}
.aside-link svg{color:var(--ink-3);}
.aside-link:hover svg{color:var(--brand);}
.aside-note{font-size:13px;color:var(--ink-3);line-height:1.8;}
.aside-list{display:grid;gap:10px;}
.aside-list li{display:flex;gap:8px;font-size:13.5px;color:var(--ink-2);line-height:1.7;}
.aside-list .dot{
  width:18px;height:18px;border-radius:6px;flex:none;margin-top:3px;
  background:var(--brand-soft);color:var(--brand);
  font-size:11px;font-weight:700;display:grid;place-items:center;
}

/* ---------- related ---------- */
.section{padding:64px 0;}
.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(--ink-2);margin-top:8px;}

.card-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px;}
.news-card{
  display:flex;flex-direction:column;
  background:var(--card);border:1px solid var(--line);
  border-radius:var(--r-lg);box-shadow:var(--shadow);
  overflow:hidden;
  transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease;
}
.news-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-hv);border-color:rgba(42,91,215,.24);}
.news-thumb{position:relative;aspect-ratio:16/9;overflow:hidden;background:var(--page);}
.news-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .4s ease;}
.news-card:hover .news-thumb img{transform:scale(1.04);}
.news-thumb .badge{position:absolute;left:12px;top:12px;background:#fff;color:var(--brand-deep);box-shadow:0 4px 12px rgba(31,64,124,.14);}
.news-body{padding:20px;display:flex;flex-direction:column;gap:10px;flex:1;}
.news-title{
  font-size:17px;font-weight:700;line-height:1.55;color:var(--ink);
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.news-card:hover .news-title{color:var(--brand-deep);}
.news-desc{
  font-size:14px;color:var(--ink-2);line-height:1.75;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.news-foot{
  margin-top:auto;padding-top:12px;border-top:1px solid var(--line);
  display:flex;align-items:center;justify-content:space-between;
  font-size:12.5px;color:var(--ink-3);
}

.back-row{margin-top:26px;display:flex;align-items:center;justify-content:center;}

/* ---------- cta ---------- */
.cta-panel{
  background:var(--page);border:1px solid var(--line);
  border-radius:18px;box-shadow:var(--shadow);
  padding:46px 40px;text-align:center;
}
.cta-panel h2{font-size:26px;font-weight:700;line-height:1.4;}
.cta-panel p{max-width:620px;margin:14px auto 0;font-size:15px;color:var(--ink-2);}
.cta-actions{display:flex;gap:14px;justify-content:center;flex-wrap:wrap;margin-top:26px;}
.cta-meta{
  display:flex;gap:10px 22px;flex-wrap:wrap;justify-content:center;
  margin-top:24px;font-size:13px;color:var(--ink-3);
}
.cta-meta span{display:inline-flex;align-items:center;gap:6px;}

/* ---------- faq ---------- */
.faq-list{display:grid;gap:12px;max-width:920px;margin:0 auto;}
.faq-item{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);
  box-shadow:var(--shadow);overflow:hidden;
  transition:border-color .2s ease,box-shadow .2s ease;
}
.faq-item[open]{border-color:rgba(42,91,215,.3);box-shadow:var(--shadow-hv);}
.faq-item summary{
  list-style:none;cursor:pointer;
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  min-height:56px;padding:16px 22px;
  font-size:16px;font-weight:500;color:var(--ink);
  position:relative;
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary::before{
  content:"";position:absolute;left:0;top:12px;bottom:12px;width:3px;border-radius:0 3px 3px 0;
  background:var(--brand);opacity:0;transition:opacity .2s ease;
}
.faq-item[open] summary::before{opacity:1;}
.faq-item summary .che{
  width:22px;height:22px;flex:none;color:var(--brand);
  transition:transform .2s ease;
}
.faq-item[open] summary .che{transform:rotate(180deg);}
.faq-answer{padding:0 22px 20px;font-size:15px;color:var(--ink-2);line-height:1.85;border-top:1px solid var(--line);margin-top:2px;padding-top:16px;}

/* ---------- footer ---------- */
.site-footer{background:#0E1A2B;color:#A9B7CB;padding:64px 0 0;margin-top:8px;}
.footer-grid{
  display:grid;grid-template-columns:1.6fr 1fr 1fr 1.3fr;
  gap:40px;padding-bottom:44px;
}
.site-footer .logo{color:#fff;font-size:17px;}
.site-footer .logo-mark{background:rgba(255,255,255,.09);color:#7FA3FF;}
.site-footer .logo-text em{color:#7FA3FF;}
.footer-brand p{margin-top:16px;font-size:14px;line-height:1.85;color:#8E9DB4;max-width:340px;}
.footer-col h4{font-size:15px;font-weight:700;color:#fff;margin-bottom:16px;}
.footer-col ul{display:grid;gap:11px;}
.footer-col li{font-size:14px;line-height:1.7;color:#8E9DB4;}
.footer-col a{color:#A9B7CB;}
.footer-col a:hover{color:var(--accent);}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.1);
  padding:20px 0 26px;
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:13px;color:#7E8CA3;
}
.fb-links{display:flex;gap:18px;flex-wrap:wrap;}
.fb-links a{color:#7E8CA3;}
.fb-links a:hover{color:var(--accent);}

/* ---------- to top ---------- */
.to-top{
  position:fixed;right:24px;bottom:28px;z-index:70;
  width:44px;height:44px;border-radius:12px;
  background:#fff;border:1px solid var(--line);color:var(--brand);
  display:grid;place-items:center;cursor:pointer;
  box-shadow:var(--shadow);
  opacity:0;visibility:hidden;transform:translateY(8px);
  transition:opacity .24s ease,visibility .24s ease,transform .24s ease,background .2s ease;
}
.to-top.is-visible{opacity:1;visibility:visible;transform:translateY(0);}
.to-top:hover{background:var(--brand);color:#fff;border-color:var(--brand);}

/* ---------- responsive ---------- */
@media (max-width:1199px){
  .container{padding:0 20px;}
  .nav-main{gap:22px;padding-left:20px;}
}
@media (max-width:991px){
  .nav-main{display:none;}
  .nav-toggle{display:grid;}
  .layout{grid-template-columns:minmax(0,1fr);gap:28px;padding:32px 0 56px;}
  .article-aside{order:2;}
  .aside-inner{position:static;}
  .card-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
  .section{padding:52px 0;}
}
@media (max-width:767px){
  body{font-size:15px;line-height:1.75;}
  .header-inner{height:56px;}
  .logo{font-size:16px;}
  .logo-mark{width:30px;height:30px;}
  .header-side .btn{display:none;}
  .banner-inner{padding:26px 0 30px;}
  .article-title{font-size:22px;line-height:1.45;margin:12px 0 14px;}
  .crumb-cat,.crumb-current{display:none;}
  .article-card{padding:22px 18px;border-radius:var(--r-lg);}
  .article-body{font-size:16px;line-height:1.85;}
  .article-body h2{font-size:20px;margin:32px 0 14px;}
  .article-body h3{font-size:17px;margin:22px 0 10px;}
  .card-grid{grid-template-columns:minmax(0,1fr);gap:18px;}
  .section-head{flex-direction:column;align-items:flex-start;gap:10px;}
  .section-head h2{font-size:22px;}
  .cta-panel{padding:32px 20px;}
  .cta-panel h2{font-size:21px;}
  .cta-actions{flex-direction:column;}
  .cta-actions .btn{width:100%;}
  .footer-grid{grid-template-columns:1fr;gap:28px;padding-bottom:32px;}
  .footer-bottom{flex-direction:column;align-items:flex-start;gap:12px;}
  .to-top{right:16px;bottom:18px;}
  .search-panel{right:16px;left:16px;width:auto;}
}
@media (max-width:479px){
  .container{padding:0 16px;}
  .article-body{font-size:15px;}
  .article-card{padding:20px 16px;}
  .aside-card{padding:18px;}
  .btn{height:44px;padding:0 18px;}
}

/* roulang page: category3 */
:root{
  --primary:#2A5BD7;
  --primary-dark:#1B3E9E;
  --primary-soft:rgba(42,91,215,.08);
  --accent:#FF6A3D;
  --accent-dark:#E85526;
  --ink:#101B2C;
  --ink-2:#55637A;
  --ink-3:#8A97AC;
  --line:#E3EAF5;
  --bg:#F5F8FD;
  --card:#FFFFFF;
  --ok:#16A34A;
  --warn:#F59E0B;
  --err:#DC2626;
  --radius:14px;
  --radius-sm:10px;
  --shadow:0 6px 24px rgba(31,64,124,.08);
  --shadow-hover:0 12px 32px rgba(31,64,124,.14);
  --container:1200px;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;}
body{
  margin:0;
  font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC",system-ui,sans-serif;
  font-size:16px;
  line-height:1.8;
  color:var(--ink);
  background:var(--bg);
  font-weight:400;
}
img{max-width:100%;display:block;border-style:none;}
a{color:inherit;text-decoration:none;}
button{font:inherit;color:inherit;border:none;background:none;cursor:pointer;}
input{font:inherit;}
h1,h2,h3,h4,p,ul,ol,figure{margin:0;}
ul,ol{padding:0;list-style:none;}
:focus-visible{outline:2px solid var(--primary);outline-offset:2px;border-radius:4px;}
.container{max-width:var(--container);margin:0 auto;padding:0 24px;}
.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap;border:0;}

/* ---------- header ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(255,255,255,.96);
  border-bottom:1px solid var(--line);
  backdrop-filter:saturate(160%) blur(6px);
}
.header-inner{
  display:flex;align-items:center;gap:20px;
  min-height:64px;
}
.logo{
  display:inline-flex;align-items:center;gap:9px;
  font-size:17px;font-weight:700;letter-spacing:.2px;
  color:var(--ink);white-space:nowrap;
}
.logo-mark{
  display:inline-flex;align-items:center;justify-content:center;
  width:34px;height:34px;border-radius:10px;
  background:var(--primary-soft);color:var(--primary);
  flex:0 0 auto;
}
.logo-text em{font-style:normal;color:var(--primary);}
.header-divider{
  width:1px;height:22px;background:var(--line);flex:0 0 auto;
}
.nav-main{
  display:flex;align-items:center;gap:28px;margin-right:auto;
}
.nav-link{
  position:relative;
  font-size:15px;font-weight:500;color:var(--ink-2);
  padding:6px 0;transition:color .18s ease;
}
.nav-link::after{
  content:"";position:absolute;left:0;right:0;bottom:-2px;height:2px;
  background:var(--primary);border-radius:2px;
  transform:scaleX(0);transform-origin:left;transition:transform .2s ease;
}
.nav-link:hover{color:var(--primary-dark);}
.nav-link.is-active{color:var(--primary);}
.nav-link.is-active::after{transform:scaleX(1);}
.header-actions{display:flex;align-items:center;gap:12px;}
.icon-btn{
  display:inline-flex;align-items:center;justify-content:center;
  width:38px;height:38px;border-radius:var(--radius-sm);
  border:1px solid var(--line);background:#fff;color:var(--ink-2);
  transition:border-color .18s ease,color .18s ease,background .18s ease;
}
.icon-btn:hover{border-color:var(--primary);color:var(--primary);background:var(--primary-soft);}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:0 22px;height:44px;border-radius:var(--radius-sm);
  font-size:15px;font-weight:500;line-height:1;
  transition:transform .18s ease,box-shadow .18s ease,background .18s ease,color .18s ease,border-color .18s ease;
  white-space:nowrap;
}
.btn-primary{background:var(--accent);color:#fff;box-shadow:0 6px 18px rgba(255,106,61,.28);}
.btn-primary:hover{background:var(--accent-dark);transform:translateY(-2px);box-shadow:0 12px 26px rgba(255,106,61,.3);}
.btn-outline{background:#fff;color:var(--primary);border:1px solid var(--primary);}
.btn-outline:hover{background:var(--primary-soft);border-color:var(--primary-dark);color:var(--primary-dark);transform:translateY(-2px);}
.btn-pill{border-radius:999px;}
.btn-text{
  display:inline-flex;align-items:center;gap:6px;
  color:var(--primary);font-size:15px;font-weight:500;padding:6px 0;
}
.btn-text svg{transition:transform .2s ease;}
.btn-text:hover svg{transform:translateX(4px);}
.menu-toggle{
  display:none;width:38px;height:38px;border-radius:var(--radius-sm);
  border:1px solid var(--line);background:#fff;align-items:center;justify-content:center;
  color:var(--ink-2);
}
.mobile-panel{
  display:none;border-top:1px solid var(--line);background:#fff;
}
.mobile-panel.is-open{display:block;}
.mobile-panel .container{padding-top:14px;padding-bottom:20px;}
.mobile-panel a{
  display:block;padding:12px 0;font-size:15px;font-weight:500;color:var(--ink-2);
  border-bottom:1px solid var(--line);
}
.mobile-panel a.is-active{color:var(--primary);}
.mobile-panel .btn{width:100%;margin-top:16px;}

/* ---------- breadcrumb ---------- */
.breadcrumb-bar{background:#fff;border-bottom:1px solid var(--line);}
.breadcrumb{
  display:flex;align-items:center;gap:8px;
  font-size:12px;color:var(--ink-3);padding:14px 0;
}
.breadcrumb a{color:var(--ink-3);transition:color .18s ease;}
.breadcrumb a:hover{color:var(--primary);}
.breadcrumb .sep{color:#C4D0E2;}
.breadcrumb .current{color:var(--ink-2);font-weight:500;}

/* ---------- hero ---------- */
.q-hero{
  position:relative;
  background:#fff;
  border-bottom:1px solid var(--line);
  padding:64px 0 56px;
  overflow:hidden;
}
.q-hero::before{
  content:"";position:absolute;inset:0;
  background-image:url("/assets/images/backpic/back-2.webp");
  background-size:cover;background-position:center right;
  opacity:.14;pointer-events:none;
}
.q-hero .container{position:relative;}
.q-hero-inner{max-width:760px;}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;font-weight:500;color:var(--primary);
  background:var(--primary-soft);
  border-radius:999px;padding:6px 14px;margin-bottom:18px;
}
.q-hero h1{
  font-size:40px;line-height:1.3;font-weight:700;letter-spacing:-.4px;
  margin-bottom:16px;
}
.q-hero .lead{
  font-size:17px;line-height:1.85;color:var(--ink-2);
  margin-bottom:26px;max-width:660px;
}
.q-hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:30px;}
.anchor-chips{display:flex;flex-wrap:wrap;gap:12px;}
.anchor-chip{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;font-weight:500;color:var(--ink-2);
  background:var(--bg);border:1px solid var(--line);border-radius:999px;
  padding:8px 16px;transition:border-color .18s ease,color .18s ease,background .18s ease;
}
.anchor-chip:hover{border-color:var(--primary);color:var(--primary);background:var(--primary-soft);}
.anchor-chip .num{
  display:inline-flex;align-items:center;justify-content:center;
  width:20px;height:20px;border-radius:8px;
  background:var(--primary-soft);color:var(--primary);
  font-size:12px;font-weight:700;
}

/* ---------- section base ---------- */
.section{padding:88px 0;}
.section-alt{background:#fff;border-top:1px solid var(--line);border-bottom:1px solid var(--line);}
.section-head{max-width:760px;margin-bottom:40px;}
.section-head h2{
  font-size:30px;line-height:1.35;font-weight:700;margin-bottom:14px;
  display:flex;align-items:center;gap:12px;
}
.section-head h2::before{
  content:"";width:4px;height:26px;border-radius:3px;background:var(--primary);flex:0 0 auto;
}
.section-head p{font-size:16px;color:var(--ink-2);}
.h2-flat{font-size:26px;font-weight:700;margin-bottom:14px;}

/* ---------- qa layout ---------- */
.qa-layout{
  display:grid;grid-template-columns:1fr 1fr;gap:32px;align-items:start;
}
.qa-figure{
  border-radius:var(--radius);overflow:hidden;
  border:1px solid var(--line);box-shadow:var(--shadow);background:#fff;
}
.qa-figure img{width:100%;height:100%;aspect-ratio:16/10;object-fit:cover;}
.qa-caption{
  font-size:13px;color:var(--ink-3);padding:12px 16px;border-top:1px solid var(--line);
}
.qa-list{display:flex;flex-direction:column;gap:14px;}
.faq-item{
  background:var(--card);border:1px solid var(--line);border-radius:12px;
  box-shadow:var(--shadow);
  transition:box-shadow .2s ease,border-color .2s ease;
  overflow:hidden;
}
.faq-item:hover{box-shadow:var(--shadow-hover);}
.faq-item summary{
  position:relative;
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  min-height:56px;padding:14px 20px 14px 24px;
  font-size:16px;font-weight:500;color:var(--ink);
  cursor:pointer;list-style:none;
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary::before{
  content:"";position:absolute;left:0;top:12px;bottom:12px;width:3px;
  background:var(--primary);border-radius:0 3px 3px 0;
  opacity:0;transition:opacity .2s ease;
}
.faq-item summary .chev{
  flex:0 0 auto;color:var(--ink-3);
  transition:transform .2s ease,color .2s ease;
}
.faq-item[open]{border-color:#CFDDF6;}
.faq-item[open] summary::before{opacity:1;}
.faq-item[open] summary .chev{transform:rotate(180deg);color:var(--primary);}
.faq-body{
  padding:0 24px 20px 24px;
  font-size:15px;line-height:1.85;color:var(--ink-2);
  border-top:1px solid var(--line);
  padding-top:16px;
}
.faq-body strong{color:var(--ink);font-weight:500;}

/* ---------- compare card ---------- */
.compare{
  border-radius:var(--radius);border:1px solid var(--line);
  background:#fff;box-shadow:var(--shadow);overflow:hidden;margin-top:48px;
}
.compare-head{
  padding:20px 26px;border-bottom:1px solid var(--line);
  display:flex;flex-wrap:wrap;align-items:baseline;gap:10px;
}
.compare-head h3{font-size:20px;font-weight:700;}
.compare-head span{font-size:13px;color:var(--ink-3);}
.compare-grid{display:grid;grid-template-columns:1fr 1fr;}
.compare-col{padding:26px;}
.compare-col.left{background:var(--bg);border-right:1px solid var(--line);}
.compare-col.right{background:#fff;}
.compare-col h4{
  font-size:17px;font-weight:700;margin-bottom:6px;
  display:flex;align-items:center;gap:8px;
}
.compare-col h4 .dot{width:8px;height:8px;border-radius:50%;background:var(--primary);}
.compare-col.right h4 .dot{background:var(--accent);}
.compare-col .sub{font-size:13px;color:var(--ink-3);margin-bottom:18px;}
.compare-list li{
  display:flex;gap:10px;
  font-size:15px;color:var(--ink-2);line-height:1.8;
  padding:10px 0;border-bottom:1px dashed var(--line);
}
.compare-list li:last-child{border-bottom:none;}
.compare-list li .k{
  flex:0 0 84px;color:var(--ink);font-weight:500;
}

/* ---------- badge ---------- */
.badge{
  display:inline-flex;align-items:center;gap:6px;
  font-size:12px;font-weight:500;line-height:1;
  padding:6px 12px;border-radius:999px;
}
.badge-primary{background:var(--primary-soft);color:var(--primary);}
.badge-accent{background:rgba(255,106,61,.1);color:#C8441B;}
.badge-ok{background:rgba(22,163,74,.1);color:var(--ok);}
.badge-warn{background:rgba(245,158,11,.12);color:#A76A05;}

/* ---------- inner link cards ---------- */
.link-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;}
.link-card{
  display:flex;gap:16px;align-items:stretch;
  background:#fff;border:1px solid var(--line);border-radius:var(--radius);
  box-shadow:var(--shadow);overflow:hidden;
  transition:transform .2s ease,box-shadow .2s ease;
}
.link-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-hover);}
.link-thumb{
  flex:0 0 120px;overflow:hidden;
}
.link-thumb img{width:100%;height:100%;min-height:132px;object-fit:cover;}
.link-body{padding:18px 18px 18px 0;display:flex;flex-direction:column;gap:8px;}
.link-body h3{font-size:16px;font-weight:700;line-height:1.5;}
.link-body p{font-size:14px;color:var(--ink-2);line-height:1.7;}
.link-body .go{
  margin-top:auto;font-size:13px;color:var(--primary);font-weight:500;
  display:inline-flex;align-items:center;gap:6px;
}
.link-body .go svg{transition:transform .2s ease;}
.link-card:hover .go svg{transform:translateX(4px);}

/* ---------- steps strip ---------- */
.step-strip{
  display:grid;grid-template-columns:repeat(3,1fr);gap:20px;margin-top:34px;
}
.step-cell{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius);
  padding:22px;box-shadow:var(--shadow);position:relative;
}
.step-cell .idx{
  display:inline-flex;align-items:center;justify-content:center;
  width:32px;height:32px;border-radius:8px;
  background:var(--primary);color:#fff;font-size:14px;font-weight:700;
  margin-bottom:14px;
}
.step-cell.done .idx{background:var(--primary);}
.step-cell h4{font-size:16px;font-weight:700;margin-bottom:8px;}
.step-cell p{font-size:14px;color:var(--ink-2);line-height:1.75;}

/* ---------- notice ---------- */
.notice{
  display:flex;gap:14px;align-items:flex-start;
  background:#fff;border:1px solid var(--line);border-left:4px solid var(--primary);
  border-radius:var(--radius);padding:20px 24px;box-shadow:var(--shadow);
  margin-top:36px;
}
.notice .ico{flex:0 0 auto;color:var(--primary);}
.notice p{font-size:15px;color:var(--ink-2);line-height:1.8;}
.notice p strong{color:var(--ink);font-weight:500;}

/* ---------- CTA panel ---------- */
.cta-panel{
  background:var(--bg);border:1px solid var(--line);border-radius:20px;
  padding:56px 48px;text-align:center;
  box-shadow:var(--shadow);
}
.cta-panel h2{font-size:30px;font-weight:700;line-height:1.35;margin-bottom:14px;}
.cta-panel p{
  font-size:16px;color:var(--ink-2);max-width:620px;margin:0 auto 30px;
}
.cta-actions{display:flex;justify-content:center;flex-wrap:wrap;gap:16px;}
.cta-meta{
  display:flex;justify-content:center;flex-wrap:wrap;gap:28px;
  margin-top:32px;padding-top:26px;border-top:1px solid var(--line);
}
.cta-meta div{font-size:13px;color:var(--ink-3);text-align:left;}
.cta-meta div span{display:block;font-size:15px;color:var(--ink);font-weight:500;margin-top:4px;}

/* ---------- footer ---------- */
.site-footer{
  background:#0E1A2B;color:#C7D2E3;margin-top:88px;
  padding:64px 0 0;
}
.footer-grid{
  display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:40px;
  padding-bottom:48px;
}
.footer-brand .logo{color:#fff;margin-bottom:16px;}
.footer-brand .logo-mark{background:rgba(255,255,255,.1);color:#8FB0F5;}
.footer-brand .logo-text em{color:#8FB0F5;}
.footer-brand p{font-size:14px;line-height:1.85;color:#93A3BC;max-width:320px;}
.footer-col h4{
  font-size:15px;font-weight:700;color:#fff;margin-bottom:18px;
}
.footer-col ul{display:flex;flex-direction:column;gap:12px;}
.footer-col li{font-size:14px;color:#93A3BC;line-height:1.7;}
.footer-col a{color:#93A3BC;transition:color .18s ease;}
.footer-col a:hover{color:var(--accent);}
.footer-bottom{
  display:flex;flex-wrap:wrap;justify-content:space-between;gap:14px;
  border-top:1px solid rgba(255,255,255,.1);
  padding:22px 0 28px;font-size:13px;color:#7A8AA5;
}
.fb-links{display:flex;flex-wrap:wrap;gap:20px;}
.fb-links a{color:#7A8AA5;transition:color .18s ease;}
.fb-links a:hover{color:var(--accent);}

/* ---------- responsive ---------- */
@media (max-width:1199px){
  .container{padding:0 24px;}
  .q-hero h1{font-size:36px;}
}
@media (max-width:991px){
  .nav-main,.header-divider{display:none;}
  .menu-toggle{display:inline-flex;}
  .qa-layout{grid-template-columns:1fr;}
  .link-grid{grid-template-columns:1fr 1fr;}
  .step-strip{grid-template-columns:1fr 1fr;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
  .section{padding:64px 0;}
  .q-hero{padding:48px 0 44px;}
  .q-hero h1{font-size:30px;}
  .q-hero .lead{font-size:16px;}
  .section-head h2{font-size:24px;}
  .cta-panel{padding:40px 26px;}
  .cta-panel h2{font-size:24px;}
  .hero-compare{grid-template-columns:1fr;}
}
@media (max-width:767px){
  .container{padding:0 20px;}
  .header-inner{min-height:56px;}
  .header-actions .btn-pill{display:none;}
  .q-hero{padding:40px 0 36px;}
  .q-hero h1{font-size:26px;line-height:1.35;}
  .q-hero .lead{font-size:15px;line-height:1.75;}
  .q-hero-actions .btn{flex:1 1 100%;}
  .section{padding:56px 0;}
  .section-head h2{font-size:22px;}
  .section-head h2::before{height:20px;}
  .compare-grid{grid-template-columns:1fr;}
  .compare-col.left{border-right:none;border-bottom:1px solid var(--line);}
  .link-grid{grid-template-columns:1fr;}
  .link-thumb{flex:0 0 96px;}
  .link-thumb img{min-height:112px;}
  .step-strip{grid-template-columns:1fr;}
  .footer-grid{grid-template-columns:1fr;gap:28px;padding-bottom:32px;}
  .cta-actions .btn{width:100%;}
  .cta-meta{gap:18px;flex-direction:column;align-items:center;text-align:center;}
  .cta-meta div{text-align:center;}
  .faq-item summary{font-size:15px;padding:12px 16px 12px 20px;}
  .faq-body{padding:14px 20px 18px 20px;font-size:14px;}
  .compare-list li .k{flex:0 0 72px;font-size:14px;}
}
@media (max-width:479px){
  .q-hero h1{font-size:23px;}
  .logo{font-size:15px;}
  .logo-mark{width:30px;height:30px;}
  .cta-panel{padding:32px 18px;border-radius:16px;}
  .section-head h2{font-size:20px;}
}

/* roulang page: category2 */
:root{
  --brand:#2A5BD7;
  --brand-deep:#1B3E9E;
  --brand-soft:rgba(42,91,215,.08);
  --accent:#FF6A3D;
  --accent-deep:#E8552A;
  --ink:#101B2C;
  --ink-2:#55637A;
  --ink-3:#8A97AC;
  --line:#E3EAF5;
  --page:#F5F8FD;
  --card:#FFFFFF;
  --ok:#16A34A;
  --warn:#F59E0B;
  --err:#DC2626;
  --footer:#0E1A2B;
  --radius:14px;
  --radius-sm:10px;
  --radius-pill:999px;
  --shadow:0 6px 24px rgba(31,64,124,.08);
  --shadow-hover:0 12px 32px rgba(31,64,124,.14);
  --section-y:88px;
  --container:1200px;
  --font:"PingFang SC","Microsoft YaHei","Noto Sans SC",system-ui,sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  font-family:var(--font);
  font-size:16px;
  line-height:1.8;
  color:var(--ink);
  background:var(--page);
  font-weight:400;
}
img{max-width:100%;display:block;border-style:none}
a{color:var(--brand);text-decoration:none;transition:color .2s ease}
a:hover{color:var(--brand-deep)}
button,input{font-family:inherit;font-size:inherit}
h1,h2,h3,h4{margin:0;font-weight:700;line-height:1.35;color:var(--ink)}
p{margin:0}
ul{margin:0;padding:0;list-style:none}
svg{display:block}
::selection{background:var(--brand-soft);color:var(--brand-deep)}

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

/* ---------- header ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(255,255,255,.96);
  border-bottom:1px solid var(--line);
  backdrop-filter:saturate(150%) blur(6px);
}
.header-inner{
  display:flex;align-items:center;justify-content:space-between;
  height:64px;gap:24px;
}
.header-left{display:flex;align-items:center;gap:28px;min-width:0}
.header-right{
  display:flex;align-items:center;gap:14px;
  padding-left:24px;border-left:1px solid var(--line);
}
.logo{display:inline-flex;align-items:center;gap:10px;color:var(--ink);flex:0 0 auto}
.logo:hover{color:var(--brand-deep)}
.logo-mark{
  width:34px;height:34px;border-radius:10px;
  display:grid;place-items:center;
  background:var(--brand-soft);color:var(--brand);
  border:1px solid rgba(42,91,215,.16);
}
.logo-text{font-size:17px;font-weight:700;letter-spacing:.2px;white-space:nowrap}
.logo-text em{font-style:normal;color:var(--brand)}
.nav-main{display:flex;align-items:center;gap:28px}
.nav-link{
  position:relative;
  font-size:15px;font-weight:500;color:var(--ink-2);
  padding:6px 0;white-space:nowrap;
}
.nav-link::after{
  content:"";position:absolute;left:0;right:0;bottom:-2px;height:2px;
  background:var(--brand);border-radius:2px;
  transform:scaleX(0);transform-origin:left;transition:transform .2s ease;
}
.nav-link:hover{color:var(--brand-deep)}
.nav-link:hover::after{transform:scaleX(1)}
.nav-link.is-active{color:var(--brand);font-weight:700}
.nav-link.is-active::after{transform:scaleX(1)}
.icon-btn{
  width:38px;height:38px;border-radius:var(--radius-sm);
  border:1px solid var(--line);background:#fff;color:var(--ink-2);
  display:grid;place-items:center;cursor:pointer;
  transition:all .2s ease;
}
.icon-btn:hover{border-color:rgba(42,91,215,.35);color:var(--brand);background:var(--brand-soft)}
.hamburger{
  display:none;width:40px;height:40px;border-radius:var(--radius-sm);
  border:1px solid var(--line);background:#fff;cursor:pointer;
  align-items:center;justify-content:center;color:var(--ink);
}
.hamburger span{display:block;width:18px;height:2px;background:currentColor;border-radius:2px;position:relative}
.hamburger span::before,.hamburger span::after{
  content:"";position:absolute;left:0;width:18px;height:2px;background:currentColor;border-radius:2px;
}
.hamburger span::before{top:-6px}
.hamburger span::after{top:6px}
.mobile-panel{
  display:none;border-top:1px solid var(--line);background:#fff;
  padding:12px 0 20px;
}
.mobile-panel.is-open{display:block}
.mobile-panel .container{display:flex;flex-direction:column;gap:4px}
.mobile-panel a{
  padding:12px 0;font-size:16px;font-weight:500;color:var(--ink-2);
  border-bottom:1px solid var(--line);
}
.mobile-panel a.is-active{color:var(--brand);font-weight:700}
.mobile-panel .btn{margin-top:14px}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:46px;padding:0 24px;border-radius:var(--radius-sm);
  font-size:15px;font-weight:500;cursor:pointer;border:1px solid transparent;
  transition:transform .2s ease,box-shadow .2s ease,background .2s ease,color .2s ease,border-color .2s ease;
  white-space:nowrap;
}
.btn:focus-visible{outline:2px solid var(--brand);outline-offset:3px}
.btn-primary{background:var(--accent);color:#fff;box-shadow:0 8px 20px rgba(255,106,61,.26)}
.btn-primary:hover{background:var(--accent-deep);color:#fff;transform:translateY(-2px);box-shadow:0 12px 26px rgba(255,106,61,.32)}
.btn-outline{background:#fff;color:var(--brand);border-color:rgba(42,91,215,.45)}
.btn-outline:hover{background:var(--brand-soft);color:var(--brand-deep);border-color:var(--brand);transform:translateY(-2px)}
.btn-ghost{background:transparent;color:var(--brand);padding:0 4px;height:auto}
.btn-ghost .arrow{transition:transform .2s ease}
.btn-ghost:hover{color:var(--brand-deep)}
.btn-ghost:hover .arrow{transform:translateX(4px)}
.btn-sm{height:38px;padding:0 18px;font-size:14px;border-radius:var(--radius-sm)}
.btn-pill{border-radius:var(--radius-pill)}
.btn-disabled{opacity:.4;pointer-events:none}

/* ---------- hero ---------- */
.page-hero{
  background:#fff;
  border-bottom:1px solid var(--line);
  padding:56px 0 64px;
}
.breadcrumb{
  display:flex;align-items:center;gap:8px;flex-wrap:wrap;
  font-size:12px;color:var(--ink-3);margin-bottom:22px;
}
.breadcrumb a{color:var(--ink-3)}
.breadcrumb a:hover{color:var(--brand)}
.breadcrumb .sep{color:#C3CEDF}
.breadcrumb .current{color:var(--ink-2)}
.hero-full{max-width:820px}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  padding:5px 14px;border-radius:var(--radius-pill);
  background:var(--brand-soft);color:var(--brand);
  font-size:13px;font-weight:500;margin-bottom:18px;
}
.hero-full h1{
  font-size:40px;line-height:1.3;letter-spacing:-.4px;
}
.hero-full .hero-sub{
  font-size:18px;color:var(--ink-2);margin-top:16px;max-width:720px;
}
.hero-meta{
  display:flex;flex-wrap:wrap;gap:12px 28px;margin-top:26px;
  padding-top:24px;border-top:1px solid var(--line);
}
.hero-meta .item{display:flex;align-items:center;gap:8px;font-size:14px;color:var(--ink-2)}
.hero-meta .dot{
  width:26px;height:26px;border-radius:8px;background:var(--brand-soft);color:var(--brand);
  display:grid;place-items:center;flex:0 0 auto;
}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:30px}

/* ---------- section ---------- */
.section{padding:var(--section-y) 0}
.section.tight{padding:64px 0}
.section-head{max-width:760px;margin-bottom:40px}
.section-head .kicker{
  font-size:13px;font-weight:500;color:var(--brand);letter-spacing:1px;
  display:inline-flex;align-items:center;gap:8px;margin-bottom:12px;
}
.section-head .kicker::before{content:"";width:22px;height:3px;border-radius:2px;background:var(--brand)}
.section-head h2{font-size:30px;line-height:1.35}
.section-head p{color:var(--ink-2);margin-top:14px;font-size:16px}
.section-head.row{
  max-width:none;display:flex;align-items:flex-end;justify-content:space-between;gap:24px;
}
.section-head.row .txt{max-width:640px}

/* ---------- steps ---------- */
.steps-wrap{position:relative}
.steps{
  display:grid;grid-template-columns:repeat(3,1fr);gap:24px;
}
.step{
  position:relative;background:var(--card);border:1px solid var(--line);
  border-radius:var(--radius);padding:24px;box-shadow:var(--shadow);
  transition:transform .25s ease,box-shadow .25s ease,border-color .25s ease;
}
.step:hover{transform:translateY(-3px);box-shadow:var(--shadow-hover)}
.step .step-top{display:flex;align-items:center;gap:12px;margin-bottom:14px}
.step .num{
  width:34px;height:34px;border-radius:8px;
  background:var(--brand-soft);color:var(--brand);
  display:grid;place-items:center;font-weight:700;font-size:15px;flex:0 0 auto;
}
.step .stage{font-size:13px;color:var(--ink-3);font-weight:500}
.step h3{font-size:18px;margin-bottom:10px}
.step p{font-size:15px;color:var(--ink-2);line-height:1.75}
.step.is-current{border-color:rgba(42,91,215,.4);box-shadow:0 10px 28px rgba(31,64,124,.12)}
.step.is-current .num{background:var(--brand);color:#fff}
.step.is-current::before{
  content:"当前节点";position:absolute;top:-11px;left:24px;
  font-size:12px;font-weight:500;color:#fff;background:var(--brand);
  padding:2px 10px;border-radius:var(--radius-pill);
}
.step-arrow{
  display:flex;align-items:center;justify-content:center;
  color:#C3CEDF;font-size:20px;
}

/* ---------- card grid ---------- */
.grid-2x2{display:grid;grid-template-columns:repeat(2,1fr);gap:24px}
.mini-card{
  display:flex;gap:18px;background:var(--card);border:1px solid var(--line);
  border-radius:var(--radius);padding:24px;box-shadow:var(--shadow);
  transition:transform .25s ease,box-shadow .25s ease;
}
.mini-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-hover)}
.mini-card .ico{
  width:44px;height:44px;border-radius:12px;flex:0 0 auto;
  background:var(--brand-soft);color:var(--brand);display:grid;place-items:center;
}
.mini-card h3{font-size:17px;margin-bottom:8px}
.mini-card p{font-size:15px;color:var(--ink-2);line-height:1.75}

/* ---------- badges ---------- */
.badge{
  display:inline-flex;align-items:center;gap:6px;
  padding:3px 11px;border-radius:var(--radius-pill);
  font-size:12px;font-weight:500;line-height:1.7;
}
.badge-brand{background:var(--brand-soft);color:var(--brand-deep)}
.badge-ok{background:rgba(22,163,74,.1);color:#127A38}
.badge-warn{background:rgba(245,158,11,.12);color:#A96A05}
.badge-err{background:rgba(220,38,38,.1);color:#B41D1D}
.badge-accent{background:rgba(255,106,61,.12);color:#C6471F}

/* ---------- feature split ---------- */
.split{
  display:grid;grid-template-columns:5fr 7fr;gap:48px;align-items:center;
}
.split .media{
  border-radius:var(--radius);overflow:hidden;border:1px solid var(--line);
  box-shadow:var(--shadow);aspect-ratio:4/3;background:var(--page);
}
.split .media img{width:100%;height:100%;object-fit:cover}
.split h2{font-size:30px;margin-bottom:16px}
.split p{color:var(--ink-2);font-size:16px}
.check-list{margin-top:22px;display:flex;flex-direction:column;gap:14px}
.check-list li{display:flex;gap:12px;align-items:flex-start;font-size:15px;color:var(--ink-2)}
.check-list .tick{
  width:22px;height:22px;border-radius:6px;flex:0 0 auto;margin-top:3px;
  background:rgba(22,163,74,.1);color:var(--ok);display:grid;place-items:center;
}
.check-list strong{color:var(--ink);font-weight:500}

/* ---------- link cards ---------- */
.link-cards{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.link-card{
  display:flex;gap:16px;background:var(--card);border:1px solid var(--line);
  border-radius:var(--radius);padding:16px;box-shadow:var(--shadow);
  transition:transform .25s ease,box-shadow .25s ease,border-color .25s ease;
  color:var(--ink);
}
.link-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-hover);border-color:rgba(42,91,215,.28);color:var(--ink)}
.link-card .thumb{
  width:96px;height:72px;border-radius:10px;overflow:hidden;flex:0 0 auto;background:var(--page);
}
.link-card .thumb img{width:100%;height:100%;object-fit:cover}
.link-card h3{font-size:16px;margin-bottom:6px}
.link-card p{font-size:13px;color:var(--ink-3);line-height:1.7;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.link-card .go{margin-top:8px;font-size:13px;color:var(--brand);display:inline-flex;align-items:center;gap:6px}
.link-card:hover .go .arrow{transform:translateX(4px)}
.link-card .go .arrow{transition:transform .2s ease}

/* ---------- faq ---------- */
.faq-wrap{max-width:880px;margin:0 auto;background:#fff;border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow);overflow:hidden}
.faq-item{border-bottom:1px solid var(--line)}
.faq-item:last-child{border-bottom:none}
.faq-item summary{
  list-style:none;cursor:pointer;position:relative;
  padding:0 56px 0 24px;min-height:56px;display:flex;align-items:center;
  font-size:16px;font-weight:500;color:var(--ink);
  transition:background .2s ease,color .2s ease;
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::before{
  content:"";position:absolute;left:0;top:8px;bottom:8px;width:3px;
  background:var(--brand);border-radius:0 3px 3px 0;
  transform:scaleY(0);transform-origin:top;transition:transform .2s ease;
}
.faq-item summary::after{
  content:"";position:absolute;right:26px;top:50%;
  width:9px;height:9px;border-right:2px solid var(--ink-3);border-bottom:2px solid var(--ink-3);
  transform:translateY(-70%) rotate(45deg);transition:transform .2s ease,border-color .2s ease;
}
.faq-item summary:hover{background:#FAFCFF;color:var(--brand-deep)}
.faq-item[open] summary{background:#FAFCFF}
.faq-item[open] summary::before{transform:scaleY(1)}
.faq-item[open] summary::after{transform:translateY(-30%) rotate(-135deg);border-color:var(--brand)}
.faq-answer{padding:0 56px 22px 24px;font-size:15px;color:var(--ink-2);line-height:1.85}

/* ---------- cta ---------- */
.cta-panel{
  background:linear-gradient(180deg,#EDF3FE 0%,#F6F9FE 100%);
  border:1px solid var(--line);border-radius:18px;
  padding:56px 40px;text-align:center;
}
.cta-panel h2{font-size:30px}
.cta-panel p{color:var(--ink-2);margin:14px auto 0;max-width:620px;font-size:16px}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px;justify-content:center;margin-top:28px}
.cta-note{margin-top:20px;font-size:13px;color:var(--ink-3)}

/* ---------- note strip ---------- */
.note-strip{
  display:flex;flex-wrap:wrap;gap:14px;align-items:center;
  background:rgba(22,163,74,.08);border:1px solid rgba(22,163,74,.2);
  border-radius:var(--radius);padding:16px 20px;color:#127A38;font-size:14px;
}
.note-strip .ico{width:22px;height:22px;flex:0 0 auto;display:grid;place-items:center}

/* ---------- footer ---------- */
.site-footer{background:var(--footer);color:#B7C3D6;padding:64px 0 0;margin-top:88px}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.2fr;gap:40px}
.footer-brand .logo{color:#fff}
.footer-brand .logo-text em{color:#7FA8FF}
.footer-brand .logo-mark{background:rgba(127,168,255,.12);border-color:rgba(127,168,255,.24);color:#7FA8FF}
.footer-brand p{margin-top:16px;font-size:14px;line-height:1.85;color:#93A3BC;max-width:340px}
.footer-col h4{font-size:15px;color:#fff;margin-bottom:16px;font-weight:500}
.footer-col ul{display:flex;flex-direction:column;gap:10px}
.footer-col li{font-size:14px;color:#93A3BC;line-height:1.8}
.footer-col a{color:#93A3BC}
.footer-col a:hover{color:var(--accent)}
.footer-bottom{
  margin-top:48px;padding:22px 0 28px;border-top:1px solid rgba(255,255,255,.09);
  display:flex;flex-wrap:wrap;gap:12px 24px;align-items:center;justify-content:space-between;
  font-size:13px;color:#7E8DA6;
}
.fb-links{display:flex;flex-wrap:wrap;gap:18px}
.fb-links a{color:#7E8DA6}
.fb-links a:hover{color:var(--accent)}

/* ---------- responsive ---------- */
@media (max-width:1199px){
  .container{padding:0 24px}
  .split{gap:36px}
}
@media (max-width:1024px){
  .nav-main{display:none}
  .hamburger{display:inline-flex}
  .header-right .btn-sm{display:none}
  .header-right{padding-left:16px}
  .steps{grid-template-columns:1fr;gap:20px}
  .step-arrow{display:none}
  .split{grid-template-columns:1fr;gap:28px}
  .split .media{aspect-ratio:16/9}
  .link-cards{grid-template-columns:1fr 1fr}
}
@media (max-width:768px){
  :root{--section-y:56px}
  .page-hero{padding:40px 0 48px}
  .hero-full h1{font-size:26px;line-height:1.35}
  .hero-full .hero-sub{font-size:16px}
  .section-head h2,.split h2,.cta-panel h2{font-size:22px}
  .section-head.row{flex-direction:column;align-items:flex-start}
  .grid-2x2{grid-template-columns:1fr}
  .link-cards{grid-template-columns:1fr}
  .cta-panel{padding:36px 22px}
  .cta-actions{flex-direction:column}
  .cta-actions .btn{width:100%}
  .hero-actions{flex-direction:column}
  .hero-actions .btn{width:100%}
  .footer-grid{grid-template-columns:1fr;gap:32px}
  .footer-bottom{flex-direction:column;align-items:flex-start}
  .faq-answer{padding:0 24px 20px 24px}
}
@media (max-width:480px){
  .container{padding:0 20px}
  .logo-text{font-size:15px}
  .mini-card{flex-direction:column;gap:14px;padding:18px}
  .link-card{flex-direction:column}
  .link-card .thumb{width:100%;height:150px}
  .hero-meta{gap:10px 18px}
}