/* roulang page: index */
/* ===================== 设计变量 ===================== */
:root{
  --c600:#1F6BE0;--c700:#1652B4;--c100:#E4EEFD;--c050:#F2F7FE;
  --a500:#F5A524;--a600:#D98A0F;--a100:#FEF3DC;
  --ok:#17A79A;--warn:#E8A317;--err:#D93B3B;
  --t1:#14213A;--t2:#4A5A75;--t3:#8794AB;--tw:#FFFFFF;
  --bg:#F4F7FC;--card:#FFFFFF;--soft:#EAF1FB;--line:#E5EBF4;--line2:#DCE4F0;
  --rc:16px;--rs:10px;--rb:12px;
  --sh1:0 1px 2px rgba(20,33,58,.05),0 6px 18px rgba(20,33,58,.06);
  --sh2:0 8px 26px rgba(31,107,224,.14);
  --sh3:0 18px 48px rgba(20,33,58,.14);
  --ease:180ms ease-out;
  --font:"PingFang SC","HarmonyOS Sans SC","Source Han Sans SC","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
  --num:"Inter",system-ui,-apple-system,"Segoe UI",sans-serif;
}
/* ===================== 基础 reset ===================== */
*,*::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(--t2);background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4,h5{margin:0;color:var(--t1);font-weight:700;letter-spacing:0;line-height:1.3}
h1{font-size:clamp(30px,4.2vw,44px);line-height:1.25}
h2{font-size:clamp(23px,2.6vw,30px);line-height:1.3}
h3{font-size:19px;font-weight:600;line-height:1.45}
p{margin:0}
a{color:var(--c600);text-decoration:none;transition:color var(--ease)}
a:hover{color:var(--c700)}
img{max-width:100%;display:block;border-style:none}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer}
ul,ol{margin:0;padding:0;list-style:none}
strong{color:var(--t1);font-weight:600}
svg{flex:none}
:focus-visible{outline:2px solid var(--c600);outline-offset:2px;border-radius:6px}
input,textarea,select{font:inherit}
/* ===================== 容器与排版工具 ===================== */
.container{max-width:1200px;margin:0 auto;padding:0 20px}
.container-wide{max-width:1180px;margin:0 auto;padding:0 20px}
.section{padding:80px 0}
.section-tight{padding:64px 0}
.sec-white{background:var(--card)}
.sec-soft{background:var(--soft)}
.sec-bg{background:var(--bg)}
.sec-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:40px}
.sec-head .sec-head-text{max-width:720px}
.sec-kicker{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;font-weight:600;color:var(--c700);
  background:var(--c100);border-radius:999px;padding:5px 14px;margin-bottom:14px;
}
.sec-desc{margin-top:12px;font-size:16px;color:var(--t2);max-width:660px}
.meta{font-size:13px;font-weight:500;color:var(--t3);line-height:1.6}
/* ===================== 顶部工具条 ===================== */
.topbar{background:var(--t1);color:#C9D5E8;font-size:12.5px;line-height:1.6}
.topbar .container{display:flex;align-items:center;justify-content:space-between;gap:20px;min-height:38px;padding-top:8px;padding-bottom:8px}
.topbar a{color:#C9D5E8}
.topbar a:hover{color:var(--a500)}
.topbar-links{display:flex;gap:20px}
/* ===================== Header ===================== */
.site-header{
  position:sticky;top:0;z-index:60;background:var(--card);
  border-bottom:1px solid var(--line);transition:box-shadow var(--ease);
}
.site-header.is-stuck{box-shadow:0 8px 24px rgba(20,33,58,.08)}
.header-inner{display:flex;align-items:center;gap:28px;min-height:72px}
.logo{display:flex;align-items:center;gap:10px;flex:none}
.logo-mark{
  width:38px;height:38px;border-radius:11px;flex:none;
  background:linear-gradient(135deg,var(--c600),#3FB9D6);
  display:flex;align-items:center;justify-content:center;color:#fff;
}
.logo-text{display:flex;flex-direction:column;line-height:1.15}
.logo-main{font-size:18px;font-weight:700;color:var(--t1);letter-spacing:0}
.logo-sub{font-size:12px;font-weight:500;color:var(--c600)}
.nav-main{display:flex;align-items:center;gap:4px;margin-left:8px}
.nav-link{
  position:relative;display:inline-flex;align-items:center;gap:6px;
  padding:10px 14px;border-radius:10px;font-size:15px;font-weight:600;color:var(--t1);
  transition:color var(--ease),background-color var(--ease);
}
.nav-link:hover{color:var(--c600);background:var(--c050)}
.nav-link.active{color:var(--c600)}
.nav-link.active::after{
  content:"";position:absolute;left:14px;right:14px;bottom:2px;height:3px;
  border-radius:3px;background:var(--c600);
}
.mega-trigger .chev{transition:transform var(--ease)}
.nav-mega{position:relative}
.nav-mega:hover .mega-trigger,.nav-mega:focus-within .mega-trigger{color:var(--c600);background:var(--c050)}
.nav-mega:hover .chev,.nav-mega:focus-within .chev{transform:rotate(180deg)}
.mega-panel{
  position:absolute;top:calc(100% + 12px);left:-120px;width:840px;
  background:var(--card);border:1px solid var(--line);border-radius:var(--rc);
  box-shadow:var(--sh3);padding:24px;
  opacity:0;visibility:hidden;transform:translateY(8px);
  transition:opacity var(--ease),transform var(--ease),visibility var(--ease);
  z-index:70;
}
.nav-mega:hover .mega-panel,.nav-mega:focus-within .mega-panel{opacity:1;visibility:visible;transform:translateY(0)}
.mega-grid{display:grid;grid-template-columns:1.25fr 1fr 0.9fr;gap:24px}
.mega-col-title{font-size:13px;font-weight:600;color:var(--t3);margin-bottom:12px}
.mega-list{display:grid;grid-template-columns:1fr 1fr;gap:4px 12px}
.mega-list a{
  display:flex;align-items:center;gap:8px;padding:7px 8px;border-radius:8px;
  font-size:14px;font-weight:500;color:var(--t2);transition:color var(--ease),transform var(--ease),background-color var(--ease);
}
.mega-list a::before{content:"";width:8px;height:8px;border-radius:50%;background:var(--c600);flex:none}
.mega-list a:hover{color:var(--c600);background:var(--c050);transform:translateX(2px)}
.mega-news{display:flex;flex-direction:column;gap:2px}
.mega-news a{
  display:block;padding:8px;border-radius:8px;color:var(--t1);font-size:14px;font-weight:500;
  transition:color var(--ease),background-color var(--ease);
}
.mega-news a span{display:block;font-size:12.5px;font-weight:500;color:var(--t3);margin-top:2px}
.mega-news a:hover{color:var(--c600);background:var(--c050)}
.mega-news a b{display:block;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;font-weight:500}
.mega-entry{border:1px solid var(--line);border-radius:var(--rs);overflow:hidden;background:var(--c050)}
.mega-entry img{width:100%;aspect-ratio:16/9;object-fit:cover}
.mega-entry div{padding:12px 14px}
.mega-entry strong{display:block;font-size:14px;color:var(--t1)}
.mega-entry span{display:block;font-size:12.5px;color:var(--t3);margin-top:4px}
.mega-foot{
  margin-top:20px;padding:10px 16px;border-radius:var(--rs);background:var(--c050);
  display:flex;align-items:center;justify-content:space-between;gap:16px;font-size:13px;color:var(--t2);
}
.header-actions{display:flex;align-items:center;gap:12px;margin-left:auto}
.menu-toggle{
  display:none;width:44px;height:44px;border-radius:12px;border:1px solid var(--line2);
  align-items:center;justify-content:center;color:var(--t1);
}
.menu-toggle:hover{background:var(--c050);border-color:var(--c600);color:var(--c600)}
/* ===================== 移动抽屉 ===================== */
.drawer-mask{
  position:fixed;inset:0;background:rgba(20,33,58,.45);opacity:0;visibility:hidden;
  transition:opacity var(--ease),visibility var(--ease);z-index:80;
}
.drawer{
  position:fixed;top:0;right:0;bottom:0;width:min(86vw,380px);background:#fff;
  transform:translateX(100%);transition:transform 220ms ease-out;z-index:90;
  display:flex;flex-direction:column;box-shadow:var(--sh3);
}
body.drawer-open .drawer{transform:translateX(0)}
body.drawer-open .drawer-mask{opacity:1;visibility:visible}
.drawer-head{display:flex;align-items:center;justify-content:space-between;padding:16px 20px;border-bottom:1px solid var(--line)}
.drawer-close{width:40px;height:40px;border-radius:10px;display:flex;align-items:center;justify-content:center;border:1px solid var(--line2);color:var(--t1)}
.drawer-close:hover{background:var(--c050);color:var(--c600)}
.drawer-body{padding:16px 20px;overflow-y:auto;flex:1}
.drawer-nav{display:flex;flex-direction:column;gap:4px}
.drawer-nav > a{
  padding:13px 12px;border-radius:10px;font-size:15.5px;font-weight:600;color:var(--t1);
}
.drawer-nav > a:hover{background:var(--c050);color:var(--c600)}
.drawer-nav > a.active{color:var(--c600);background:var(--c100)}
.drawer details{border:1px solid var(--line);border-radius:12px;margin-top:6px;overflow:hidden}
.drawer summary{
  list-style:none;padding:12px 14px;font-size:15px;font-weight:600;color:var(--t1);
  display:flex;align-items:center;justify-content:space-between;cursor:pointer;
}
.drawer summary::-webkit-details-marker{display:none}
.drawer details[open] summary{color:var(--c600);border-bottom:1px solid var(--line)}
.drawer details ul{padding:10px 14px 14px}
.drawer details li a{display:block;padding:8px 0;font-size:14px;color:var(--t2)}
.drawer details li a:hover{color:var(--c600)}
.drawer-foot{padding:16px 20px;border-top:1px solid var(--line);display:flex;flex-direction:column;gap:10px;background:var(--c050)}
/* ===================== 按钮体系 ===================== */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 26px;border-radius:var(--rb);font-size:15px;font-weight:600;
  white-space:nowrap;border:1px solid transparent;cursor:pointer;
  transition:background-color var(--ease),color var(--ease),border-color var(--ease),box-shadow var(--ease),transform var(--ease);
}
.btn-primary{background:var(--c600);color:#fff}
.btn-primary:hover{background:var(--c700);color:#fff;transform:translateY(-1px);box-shadow:var(--sh2)}
.btn-primary:active{transform:none;background:var(--c700);box-shadow:none}
.btn-accent{background:var(--a500);color:var(--t1)}
.btn-accent:hover{background:var(--a600);color:var(--t1);transform:translateY(-1px);box-shadow:0 8px 22px rgba(245,165,36,.28)}
.btn-accent:active{transform:none;box-shadow:none}
.btn-ghost{background:#fff;color:var(--c600);border-color:var(--line2)}
.btn-ghost:hover{background:var(--c050);border-color:var(--c600);color:var(--c700)}
.btn-ghost:active{background:var(--c100)}
.btn-sm{height:40px;padding:0 18px;font-size:14px;border-radius:10px}
.btn-block{width:100%}
.btn[disabled],.btn.is-disabled{opacity:.4;cursor:not-allowed;transform:none;box-shadow:none}
.btn-text{display:inline-flex;align-items:center;gap:6px;font-size:15px;font-weight:600;color:var(--c600)}
.btn-text svg{transition:transform var(--ease)}
.btn-text:hover{color:var(--c700);text-decoration:underline;text-underline-offset:3px}
.btn-text:hover svg{transform:translateX(2px)}
/* ===================== Hero ===================== */
.hero{position:relative;background:var(--c050);overflow:hidden;padding:72px 0 84px}
.hero::before{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:radial-gradient(rgba(31,107,224,.5) 1px,transparent 1px);
  background-size:22px 22px;opacity:.06;
}
.hero::after{
  content:"";position:absolute;left:0;right:0;bottom:0;height:5px;
  background:linear-gradient(90deg,var(--c600),#3FB9D6);opacity:.9;
}
.hero-inner{position:relative;display:grid;grid-template-columns:1.02fr .98fr;gap:56px;align-items:center}
.hero-badge{
  display:inline-flex;align-items:center;gap:8px;background:#fff;border:1px solid var(--c100);
  color:var(--c700);font-size:13px;font-weight:600;border-radius:999px;padding:6px 14px;margin-bottom:20px;
}
.hero h1{margin-bottom:18px}
.hero-sub{font-size:17px;line-height:1.8;color:var(--t2);max-width:520px}
.hero-btns{display:flex;flex-wrap:wrap;gap:14px;margin-top:30px}
.hero-tags{display:flex;flex-wrap:wrap;gap:10px 24px;margin-top:28px}
.hero-tags li{display:flex;align-items:center;gap:8px;font-size:13px;font-weight:500;color:var(--t2)}
.hero-tags li::before{content:"";width:7px;height:7px;border-radius:50%;background:var(--c600);flex:none}
.hero-media{position:relative}
.hero-media > img{
  width:100%;aspect-ratio:4/3;object-fit:cover;border-radius:var(--rc);box-shadow:var(--sh3);
  border:1px solid rgba(255,255,255,.7);
}
.hero-float{
  position:absolute;left:-18px;bottom:-22px;background:#fff;border:1px solid var(--line);
  border-radius:var(--rs);box-shadow:var(--sh1);padding:12px;display:flex;gap:12px;align-items:center;
  max-width:290px;
}
.hero-float img{width:88px;height:56px;border-radius:8px;object-fit:cover;flex:none}
.hero-float strong{display:block;font-size:14px;color:var(--t1)}
.hero-float span{display:block;font-size:12.5px;color:var(--t3)}
/* ===================== 卡片：特性卡 ===================== */
.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.grid-2{display:grid;grid-template-columns:repeat(2,1fr);gap:24px}
.grid-4{display:grid;grid-template-columns:repeat(4,1fr);gap:24px}
.feature-card{
  position:relative;background:var(--card);border:1px solid var(--line);border-radius:var(--rc);
  padding:28px;box-shadow:var(--sh1);overflow:hidden;
  transition:transform var(--ease),box-shadow var(--ease),border-color var(--ease);
}
.feature-card::before{content:"";position:absolute;left:0;top:0;width:3px;height:100%;background:linear-gradient(180deg,var(--c600),#3FB9D6);opacity:.9}
.feature-card:hover{transform:translateY(-2px);box-shadow:var(--sh2);border-color:#D5E3FA}
.feature-icon{
  width:40px;height:40px;border-radius:11px;background:var(--c050);color:var(--c600);
  display:flex;align-items:center;justify-content:center;margin-bottom:16px;
}
.feature-card h3{margin-bottom:10px}
.feature-card p{font-size:15px;line-height:1.8;color:var(--t2)}
.feature-note{margin-top:16px;padding-top:14px;border-top:1px dashed var(--line);font-size:13px;color:var(--t3)}
/* ===================== 解决方案：左右交替 ===================== */
.solution-row{display:grid;grid-template-columns:1fr 1fr;gap:48px;align-items:center}
.solution-row + .solution-row{margin-top:56px}
.solution-row.reverse .solution-text{order:2}
.solution-row.reverse .solution-media{order:1}
.solution-media img{width:100%;aspect-ratio:16/10;object-fit:cover;border-radius:var(--rc);box-shadow:var(--sh1);border:1px solid var(--line)}
.solution-text h3{font-size:21px;margin-bottom:14px}
.solution-text p{font-size:15.5px;line-height:1.85;color:var(--t2)}
.solution-points{margin:18px 0 22px;display:flex;flex-direction:column;gap:10px}
.solution-points li{display:flex;gap:10px;font-size:14.5px;color:var(--t2)}
.solution-points li svg{margin-top:5px;color:var(--ok)}
/* ===================== 数据卡 ===================== */
.data-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--rc);padding:28px 24px;
  box-shadow:0 1px 2px rgba(20,33,58,.04);
  transition:transform var(--ease),box-shadow var(--ease);
}
.data-card:hover{transform:translateY(-2px);box-shadow:var(--sh2)}
.data-num{font-family:var(--num);font-size:clamp(36px,4vw,46px);font-weight:700;color:var(--c600);line-height:1.1}
.data-num small{font-size:18px;font-weight:700;margin-left:2px}
.data-label{margin-top:10px;font-size:14px;color:var(--t2)}
/* ===================== 内容卡（资讯） ===================== */
.news-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.news-card{
  display:flex;flex-direction:column;background:var(--card);border:1px solid var(--line);
  border-radius:var(--rc);overflow:hidden;box-shadow:var(--sh1);
  transition:transform var(--ease),box-shadow var(--ease),border-color var(--ease);
}
.news-card:hover{transform:translateY(-2px);box-shadow:var(--sh2);border-color:#D5E3FA}
.news-card .thumb{width:100%;aspect-ratio:16/9;object-fit:cover}
.news-body{padding:22px 24px 24px;display:flex;flex-direction:column;flex:1}
.news-card h3{
  font-size:18px;line-height:1.5;margin-bottom:10px;color:var(--t1);
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.news-card:hover h3{color:var(--c600)}
.news-card p{
  font-size:14px;line-height:1.7;color:var(--t2);margin-bottom:16px;
  display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden;
}
.news-meta{margin-top:auto;display:flex;align-items:center;gap:12px;font-size:13px;color:var(--t3)}
.badge{
  display:inline-flex;align-items:center;background:var(--c100);color:var(--c700);
  font-size:12px;font-weight:600;padding:3px 10px;border-radius:10px;white-space:nowrap;
}
.news-meta .read{margin-left:auto;font-weight:600;color:var(--c600);display:inline-flex;align-items:center;gap:4px}
/* 空态 / 骨架 */
.empty-state{
  text-align:center;padding:56px 24px;border:1px dashed var(--line2);border-radius:var(--rc);
  background:var(--c050);color:var(--t3);
}
.empty-state svg{color:var(--c600);margin:0 auto 14px}
.empty-state p{font-size:14px;margin-bottom:18px}
.skeleton{background:linear-gradient(90deg,#EDF2F9 25%,#F7FAFE 37%,#EDF2F9 63%);background-size:400% 100%;animation:sk 1.2s ease-in-out infinite;border-radius:10px}
@keyframes sk{0%{background-position:100% 50%}100%{background-position:0 50%}}
/* ===================== 证言卡 ===================== */
.quote-card{
  position:relative;background:#fff;border:1px solid var(--line);border-radius:var(--rc);
  padding:30px 28px;box-shadow:var(--sh1);display:flex;flex-direction:column;
  transition:transform var(--ease),box-shadow var(--ease);
}
.quote-card:hover{transform:translateY(-2px);box-shadow:var(--sh2)}
.quote-card .mark{font-family:Georgia,serif;font-size:44px;line-height:1;color:var(--c100);margin-bottom:8px}
.quote-card blockquote{margin:0 0 22px;font-size:16px;line-height:1.8;color:var(--t2)}
.quote-person{margin-top:auto;display:flex;align-items:center;gap:12px}
.avatar{
  width:40px;height:40px;border-radius:50%;background:var(--c100);color:var(--c700);
  display:flex;align-items:center;justify-content:center;font-weight:700;font-size:15px;flex:none;
}
.quote-person strong{display:block;font-size:14px;color:var(--t1)}
.quote-person span{display:block;font-size:13px;color:var(--t3)}
@media(min-width:993px){.quote-card.raised{transform:translateY(-10px)}.quote-card.raised:hover{transform:translateY(-12px)}}
/* ===================== FAQ ===================== */
.faq-list{display:flex;flex-direction:column;gap:14px;max-width:860px}
.faq-item{
  border:1px solid var(--line);border-radius:12px;background:#fff;overflow:hidden;
  transition:border-color var(--ease),background-color var(--ease);
}
.faq-item:hover{border-color:#CBDCF8;background:var(--c050)}
.faq-item summary{
  list-style:none;cursor:pointer;display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:20px;font-size:16px;font-weight:600;color:var(--t1);
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary .icon{
  width:22px;height:22px;border-radius:6px;background:var(--c100);color:var(--c700);flex:none;
  display:flex;align-items:center;justify-content:center;font-size:16px;line-height:1;transition:transform var(--ease);
}
.faq-item[open] summary{color:var(--c700)}
.faq-item[open] summary .icon{transform:rotate(45deg)}
.faq-body{padding:0 20px 20px;font-size:15px;line-height:1.75;color:var(--t2)}
/* ===================== CTA 横幅 ===================== */
.cta-band{
  position:relative;overflow:hidden;border-radius:var(--rc);padding:44px 48px;
  background:linear-gradient(120deg,var(--c700),#1F6BE0 62%,#2E8FD8);
  display:flex;align-items:center;justify-content:space-between;gap:32px;box-shadow:var(--sh2);
}
.cta-band::after{
  content:"";position:absolute;right:-60px;top:-60px;width:260px;height:260px;border-radius:50%;
  background:rgba(255,255,255,.08);
}
.cta-band h2{color:#fff;font-size:24px;position:relative}
.cta-band p{position:relative;margin-top:10px;color:#D8E6FB;font-size:15px;max-width:560px}
.cta-band .cta-actions{position:relative;display:flex;gap:14px;flex-wrap:wrap}
/* ===================== 页脚 ===================== */
.site-footer{background:var(--t1);color:#B9C6DC;padding:64px 0 0;font-size:14px}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:40px;padding-bottom:44px}
.footer-brand .logo-main{color:#fff}
.footer-brand .logo-sub{color:#79AEF5}
.footer-brand p{margin-top:16px;line-height:1.8;color:#9FB0CB;max-width:300px}
.footer-contact{margin-top:16px;font-size:13px;color:#8FA1BE}
.footer-title{color:#fff;font-size:15px;font-weight:600;margin-bottom:16px}
.footer-links{display:flex;flex-direction:column;gap:11px}
.footer-links a{color:#B9C6DC}
.footer-links a:hover{color:var(--a500)}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.1);padding:20px 0;display:flex;flex-wrap:wrap;
  gap:12px;align-items:center;justify-content:space-between;font-size:13px;color:#8FA1BE;
}
/* ===================== 响应式 ===================== */
@media(max-width:1199px){
  .mega-panel{width:640px;left:-200px}
  .mega-grid{grid-template-columns:1fr 1fr}
  .mega-entry{display:none}
  .hero-inner{gap:40px}
}
@media(max-width:991px){
  .nav-main,.header-actions .btn{display:none}
  .menu-toggle{display:flex}
  .header-inner{min-height:60px;justify-content:space-between}
  .hero{padding:52px 0 64px}
  .hero-inner{grid-template-columns:1fr;gap:36px}
  .hero-media{order:2}
  .hero-float{left:auto;right:14px;bottom:-18px}
  .grid-3,.grid-4,.news-grid{grid-template-columns:repeat(2,1fr)}
  .solution-row{grid-template-columns:1fr;gap:28px}
  .solution-row.reverse .solution-text{order:1}
  .solution-row.reverse .solution-media{order:2}
  .section{padding:56px 0}
  .cta-band{flex-direction:column;align-items:flex-start;padding:36px 32px}
}
@media(max-width:767px){
  body{font-size:15px}
  .topbar{display:none}
  .grid-3,.grid-4,.news-grid,.grid-2{grid-template-columns:1fr}
  .sec-head{flex-direction:column;align-items:flex-start;gap:16px}
  .section{padding:48px 0}
  .feature-card,.data-card,.quote-card{padding:22px}
  .news-body{padding:20px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px}
  .cta-band{padding:28px 22px}
  .cta-band .cta-actions{width:100%}
  .cta-band .cta-actions .btn{width:100%}
  .hero-btns .btn{width:100%}
}
@media(max-width:480px){
  .container,.container-wide{padding:0 16px}
  .hero-float{display:none}
  .feature-card,.data-card,.news-card,.quote-card{box-shadow:none}
  .feature-card,.data-card,.quote-card,.news-body{padding:20px}
  .footer-grid{grid-template-columns:1fr}
}
@media(prefers-reduced-motion:reduce){
  *{animation-duration:.001ms!important;transition-duration:.001ms!important}
  .feature-card:hover,.news-card:hover,.data-card:hover,.quote-card:hover,.btn:hover{transform:none}
}

/* roulang page: article */
:root{
  --primary-600:#1F6BE0;
  --primary-700:#1652B4;
  --primary-100:#E4EEFD;
  --primary-050:#F2F7FE;
  --accent-500:#F5A524;
  --accent-600:#D98A0F;
  --accent-100:#FEF3DC;
  --success:#17A79A;
  --warn:#E8A317;
  --danger:#D93B3B;
  --text:#14213A;
  --body:#4A5A75;
  --muted:#8794AB;
  --bg:#F4F7FC;
  --card:#FFFFFF;
  --soft:#EAF1FB;
  --line:#E5EBF4;
  --radius-card:16px;
  --radius-sm:10px;
  --radius-btn:12px;
  --shadow-1:0 1px 2px rgba(20,33,58,.05),0 6px 18px rgba(20,33,58,.06);
  --shadow-2:0 8px 26px rgba(31,107,224,.14);
  --shadow-pop:0 18px 48px rgba(20,33,58,.14);
  --fs-h1:clamp(26px,3.6vw,40px);
  --fs-h2:clamp(22px,2.6vw,30px);
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:"PingFang SC","HarmonyOS Sans SC","Source Han Sans SC","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:16px;
  line-height:1.8;
  color:var(--body);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border:0}
a{color:var(--primary-600);text-decoration:none;transition:color .18s ease-out}
a:hover{color:var(--primary-700)}
button{font:inherit;color:inherit}
h1,h2,h3,h4{margin:0;color:var(--text);font-weight:700;line-height:1.3}
p{margin:0 0 16px}
ul,ol{margin:0;padding:0;list-style:none}
:focus-visible{outline:2px solid var(--primary-600);outline-offset:2px}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 20px}
.svg-i{width:18px;height:18px;flex:0 0 auto}

/* 顶部工具条 */
.topbar{background:var(--text);color:rgba(255,255,255,.82);font-size:13px}
.topbar-inner{display:flex;align-items:center;justify-content:space-between;gap:16px;min-height:38px}
.topbar-links{display:flex;gap:18px}
.topbar-links a{color:rgba(255,255,255,.78)}
.topbar-links a:hover{color:var(--accent-500)}

/* 头部 */
.site-header{position:sticky;top:0;z-index:60;background:#fff;border-bottom:1px solid var(--line);transition:box-shadow .2s ease-out}
.site-header.is-stuck{box-shadow:0 8px 24px rgba(20,33,58,.08)}
.header-inner{display:flex;align-items:center;gap:20px;min-height:72px}
.brand{display:flex;align-items:center;gap:10px;flex:0 0 auto}
.brand-mark{width:38px;height:38px;border-radius:11px;background:linear-gradient(135deg,#1F6BE0,#38A9D8);display:grid;place-items:center;color:#fff}
.logo-text{display:flex;flex-direction:column;line-height:1.12}
.logo-main{font-size:18px;font-weight:700;color:var(--text);letter-spacing:.2px}
.logo-sub{font-size:12px;font-weight:500;color:var(--primary-600);letter-spacing:1.2px}

/* 导航 */
.nav-main{display:flex;align-items:center;gap:4px;margin-left:auto}
.nav-link{position:relative;display:inline-flex;align-items:center;gap:6px;padding:8px 14px;font-size:15px;font-weight:500;color:var(--body);background:none;border:0;border-radius:10px;cursor:pointer;transition:color .16s ease-out,background .16s ease-out}
.nav-link:hover{color:var(--primary-600);background:var(--primary-050)}
.nav-link.active{color:var(--primary-600);font-weight:600}
.nav-link.active::after{content:"";position:absolute;left:14px;right:14px;bottom:-2px;height:3px;border-radius:3px;background:var(--primary-600)}
.nav-mega{position:relative}
.mega-trigger .chev{transition:transform .18s ease-out}
.nav-mega:hover .mega-trigger,.nav-mega:focus-within .mega-trigger{color:var(--primary-600);background:var(--primary-050)}
.nav-mega:hover .chev,.nav-mega:focus-within .chev{transform:rotate(180deg)}
.mega-panel{
  position:absolute;top:calc(100% + 14px);right:0;width:820px;
  background:#fff;border:1px solid var(--line);border-radius:16px;
  box-shadow:var(--shadow-pop);padding:22px;z-index:80;
  opacity:0;visibility:hidden;transform:translateY(8px);
  transition:opacity .2s ease-out,transform .2s ease-out,visibility .2s;
}
.nav-mega:hover .mega-panel,.nav-mega:focus-within .mega-panel,.nav-mega.is-open .mega-panel{opacity:1;visibility:visible;transform:translateY(0)}
.mega-grid{display:grid;grid-template-columns:1.15fr 1fr 1fr;gap:24px}
.mega-col-title{font-size:13px;font-weight:600;color:var(--muted);margin-bottom:12px}
.mega-list{display:grid;grid-template-columns:1fr 1fr;gap:8px 16px}
.mega-list a{position:relative;padding-left:16px;font-size:14px;color:var(--body);transition:color .16s ease-out,transform .16s ease-out}
.mega-list a::before{content:"";position:absolute;left:0;top:50%;width:8px;height:8px;margin-top:-4px;border-radius:50%;background:var(--primary-100);border:2px solid var(--primary-600)}
.mega-list a:hover{color:var(--primary-600);transform:translateX(2px)}
.mega-news{display:flex;flex-direction:column;gap:12px}
.mega-news a{display:block}
.mega-news b{display:block;font-size:14px;font-weight:500;color:var(--text);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.mega-news span{font-size:12px;color:var(--muted)}
.mega-news a:hover b{color:var(--primary-600)}
.mega-entry{background:var(--primary-050);border-radius:14px;padding:12px}
.mega-entry img{width:100%;aspect-ratio:16/9;object-fit:cover;border-radius:10px}
.mega-entry strong{display:block;font-size:14px;color:var(--text);margin-top:10px}
.mega-entry span{font-size:12px;color:var(--muted)}
.mega-foot{margin-top:18px;padding-top:14px;border-top:1px solid var(--line);display:flex;align-items:center;justify-content:space-between;gap:16px;font-size:13px;color:var(--muted)}
.mega-foot a{font-weight:600}

/* 按钮 */
.header-actions{display:flex;align-items:center;gap:12px;flex:0 0 auto}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;height:48px;padding:0 26px;border-radius:var(--radius-btn);font-size:15px;font-weight:600;border:1px solid transparent;cursor:pointer;white-space:nowrap;transition:background .18s ease-out,color .18s ease-out,transform .18s ease-out,box-shadow .18s ease-out,border-color .18s ease-out}
.btn-primary{background:var(--primary-600);color:#fff}
.btn-primary:hover{background:var(--primary-700);color:#fff;transform:translateY(-1px)}
.btn-primary:active{transform:translateY(0)}
.btn-accent{background:var(--accent-500);color:var(--text)}
.btn-accent:hover{background:var(--accent-600);color:var(--text);transform:translateY(-1px)}
.btn-accent:active{transform:translateY(0)}
.btn-ghost{background:#fff;border-color:#DCE4F0;color:var(--primary-600)}
.btn-ghost:hover{background:var(--primary-050);border-color:var(--primary-600);color:var(--primary-700)}
.btn-text{height:auto;padding:0;background:none;border:0;color:var(--primary-600);font-weight:600}
.btn-text:hover{text-decoration:underline;color:var(--primary-700)}
.btn-text .svg-i{transition:transform .18s ease-out}
.btn-text:hover .svg-i{transform:translateX(2px)}
.btn-sm{height:40px;padding:0 18px;font-size:14px}
.btn:disabled,.btn[disabled]{opacity:.4;cursor:not-allowed;transform:none}

/* 移动端汉堡 */
.nav-toggle{display:none;width:44px;height:44px;border-radius:12px;border:1px solid var(--line);background:#fff;flex-direction:column;align-items:center;justify-content:center;gap:5px;cursor:pointer}
.nav-toggle span{display:block;width:18px;height:2px;border-radius:2px;background:var(--text);transition:transform .2s ease-out,opacity .2s ease-out}
.nav-toggle[aria-expanded="true"] span:nth-child(1){transform:translateY(7px) rotate(45deg)}
.nav-toggle[aria-expanded="true"] span:nth-child(2){opacity:0}
.nav-toggle[aria-expanded="true"] span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}

/* 面包屑 */
.breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--muted);padding-top:22px}
.breadcrumb a{color:var(--muted)}
.breadcrumb a:hover{color:var(--primary-600)}
.breadcrumb .sep{color:#C3CDDE}
.breadcrumb .current{color:var(--text);font-weight:500;max-width:460px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}

/* 文章头部 */
.article-hero{padding:22px 0 34px;background:#fff;border-bottom:1px solid var(--line)}
.article-head{max-width:900px}
.badge{display:inline-flex;align-items:center;gap:6px;height:26px;padding:0 12px;border-radius:10px;font-size:13px;font-weight:600;background:var(--primary-100);color:var(--primary-700)}
.article-head h1{font-size:var(--fs-h1);line-height:1.3;margin:16px 0 0;word-break:break-word}
.meta-row{display:flex;flex-wrap:wrap;align-items:center;gap:10px 14px;margin-top:20px;padding-top:16px;border-top:1px solid var(--line);font-size:14px;color:var(--muted)}
.meta-row .dot{width:4px;height:4px;border-radius:50%;background:#C9D6EA}
.meta-row strong{color:var(--text);font-weight:600}

/* 文章布局 */
.article-layout{display:grid;grid-template-columns:minmax(0,1fr) 300px;gap:48px;align-items:start;padding:36px 0 72px}
.article-main{min-width:0}
.article-body{max-width:760px;font-size:16px;line-height:1.8;color:var(--body);background:#fff;border:1px solid var(--line);border-radius:var(--radius-card);padding:32px;box-shadow:var(--shadow-1)}
.article-body>*:first-child{margin-top:0}
.article-body h2{position:relative;font-size:26px;line-height:1.35;margin:40px 0 16px;padding-left:14px}
.article-body h2::before{content:"";position:absolute;left:0;top:.42em;width:3px;height:18px;border-radius:2px;background:var(--primary-600)}
.article-body h3{font-size:19px;line-height:1.45;margin:28px 0 12px}
.article-body h4{font-size:17px;margin:22px 0 10px}
.article-body p{margin:0 0 18px}
.article-body ul,.article-body ol{padding-left:22px;margin:0 0 18px}
.article-body ul{list-style:disc}
.article-body ol{list-style:decimal}
.article-body li{margin:6px 0;line-height:1.85}
.article-body ul li::marker{color:var(--primary-600)}
.article-body ol li::marker{color:var(--primary-600);font-weight:600}
.article-body blockquote{margin:24px 0;padding:16px 20px;background:var(--primary-050);border-left:3px solid var(--primary-600);border-radius:0 12px 12px 0;color:var(--body)}
.article-body blockquote p:last-child{margin-bottom:0}
.article-body img{border-radius:12px;margin:20px auto;height:auto}
.article-body figure{margin:24px 0}
.article-body figcaption{margin-top:10px;text-align:center;font-size:13px;color:var(--muted)}
.article-body a{color:var(--primary-600);text-decoration:underline;text-underline-offset:3px}
.article-body a:hover{color:var(--primary-700)}
.article-body table{width:100%;border-collapse:collapse;margin:22px 0;font-size:15px;min-width:520px}
.article-body th{background:var(--soft);color:var(--text);font-weight:600}
.article-body th,.article-body td{border:1px solid var(--line);padding:12px 14px;text-align:left}
.article-body tbody tr:nth-child(even){background:#FAFCFF}
.article-body hr{border:0;border-top:1px solid var(--line);margin:32px 0}
.article-body code{background:var(--soft);border-radius:6px;padding:2px 6px;font-size:14px;color:var(--primary-700)}

/* 标签 */
.tag-row{max-width:760px;display:flex;flex-wrap:wrap;gap:10px;margin-top:24px}
.tag-row .tag{display:inline-flex;align-items:center;height:30px;padding:0 14px;border-radius:999px;background:var(--primary-100);color:var(--primary-700);font-size:13px;font-weight:500}
.tag-row .tag:hover{background:var(--primary-600);color:#fff}

/* 空态 */
.empty-state{max-width:760px;background:#fff;border:1px dashed #C9D6EA;border-radius:var(--radius-card);padding:52px 28px;text-align:center}
.empty-state .ico{width:52px;height:52px;border-radius:14px;background:var(--primary-050);display:grid;place-items:center;margin:0 auto 16px;color:var(--primary-600)}
.empty-state p{font-size:15px;color:var(--muted);margin:0 0 20px}

/* 侧栏 */
.article-side{position:sticky;top:96px;display:flex;flex-direction:column;gap:20px}
.side-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius-card);padding:22px;box-shadow:var(--shadow-1)}
.side-card h3{font-size:16px;margin-bottom:14px;padding-bottom:12px;border-bottom:1px solid var(--line)}
.side-list{display:flex;flex-direction:column}
.side-list a{display:flex;align-items:center;gap:10px;padding:11px 0;border-bottom:1px solid var(--line);font-size:14px;color:var(--body)}
.side-list a:last-child{border-bottom:0;padding-bottom:0}
.side-list a:hover{color:var(--primary-600)}
.side-list i{width:8px;height:8px;border-radius:50%;background:var(--primary-100);border:2px solid var(--primary-600);flex:0 0 auto}
.side-news a{display:block;padding:11px 0;border-bottom:1px solid var(--line)}
.side-news a:last-child{border-bottom:0;padding-bottom:0}
.side-news b{display:block;font-size:14px;font-weight:500;color:var(--text);line-height:1.6;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.side-news span{font-size:12px;color:var(--muted)}
.side-news a:hover b{color:var(--primary-600)}

/* 通用板块 */
.section{padding:72px 0}
.section-soft{background:var(--soft)}
.section-white{background:#fff}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:32px}
.section-head h2{font-size:var(--fs-h2)}
.section-head p{margin:10px 0 0;font-size:15px;color:var(--muted);max-width:640px}

/* 卡片 */
.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.card{background:#fff;border:1px solid var(--line);border-radius:var(--radius-card);overflow:hidden;box-shadow:var(--shadow-1);transition:transform .2s ease-out,box-shadow .2s ease-out}
.card:hover{transform:translateY(-2px);box-shadow:var(--shadow-2)}
.card-thumb{aspect-ratio:16/9;overflow:hidden}
.card-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .45s ease-out}
.card:hover .card-thumb img{transform:scale(1.04)}
.card-body{padding:20px 22px 22px}
.card-body h3{font-size:18px;line-height:1.5;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.card-body h3 a{color:var(--text)}
.card-body h3 a:hover{color:var(--primary-600)}
.card-body p{font-size:14px;line-height:1.7;color:var(--body);margin:10px 0 16px;display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden}
.card-meta{display:flex;align-items:center;gap:12px;font-size:13px;color:var(--muted);padding-top:14px;border-top:1px solid var(--line)}
.card-meta .chip{display:inline-flex;align-items:center;height:24px;padding:0 10px;border-radius:10px;background:var(--primary-100);color:var(--primary-700);font-size:12px;font-weight:600}
.card-meta .more{margin-left:auto;color:var(--primary-600);font-weight:600}

/* CTA */
.cta-band{background:#fff;border:1px solid var(--line);border-radius:var(--radius-card);padding:34px 36px;display:flex;align-items:center;justify-content:space-between;gap:28px;box-shadow:var(--shadow-1);position:relative;overflow:hidden}
.cta-band::before{content:"";position:absolute;left:0;top:0;bottom:0;width:3px;background:linear-gradient(180deg,#1F6BE0,#38A9D8)}
.cta-band h2{font-size:24px}
.cta-band p{margin:8px 0 0;font-size:15px;color:var(--muted)}
.cta-actions{display:flex;gap:14px;flex:0 0 auto}

/* 页脚 */
.site-footer{background:var(--text);color:rgba(255,255,255,.72);padding:64px 0 0;margin-top:0}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:40px;padding-bottom:40px;border-bottom:1px solid rgba(255,255,255,.12)}
.footer-brand .logo-text{display:flex;flex-direction:column;line-height:1.15}
.footer-brand .logo-main{color:#fff;font-size:18px;font-weight:700}
.footer-brand .logo-sub{color:var(--accent-500);font-size:12px;font-weight:500;letter-spacing:1.2px}
.footer-brand p{margin:16px 0 12px;font-size:14px;line-height:1.75;max-width:300px;color:rgba(255,255,255,.66)}
.footer-contact{font-size:13px;color:rgba(255,255,255,.55)}
.footer-title{color:#fff;font-size:15px;font-weight:600;margin-bottom:16px}
.footer-links{display:flex;flex-direction:column;gap:11px}
.footer-links a{color:rgba(255,255,255,.72);font-size:14px}
.footer-links a:hover{color:var(--accent-500)}
.footer-bottom{display:flex;flex-wrap:wrap;justify-content:space-between;gap:12px;padding:22px 0;font-size:13px;color:rgba(255,255,255,.5)}

/* 响应式 */
@media(max-width:1199px){
  .mega-panel{width:640px}
  .mega-grid{grid-template-columns:1fr 1fr;gap:20px}
  .mega-grid>div:last-child{grid-column:span 2}
  .mega-entry{display:flex;gap:14px;align-items:center}
  .mega-entry img{width:180px;flex:0 0 auto}
  .mega-entry strong{margin-top:0}
  .article-layout{grid-template-columns:minmax(0,1fr) 260px;gap:32px}
}
@media(max-width:991px){
  .nav-toggle{display:inline-flex}
  .header-inner{justify-content:space-between}
  .nav-main{
    position:fixed;top:0;right:0;bottom:0;z-index:70;
    width:min(86vw,380px);background:#fff;
    flex-direction:column;align-items:stretch;gap:4px;
    padding:78px 20px 24px;margin-left:0;
    transform:translateX(102%);transition:transform .22s ease-out;
    box-shadow:-12px 0 40px rgba(20,33,58,.16);
    overflow-y:auto;
  }
  .nav-main.is-open{transform:translateX(0)}
  .nav-link{width:100%;justify-content:flex-start;padding:14px 12px;font-size:16px;border-radius:10px}
  .nav-link.active{background:var(--primary-050)}
  .nav-link.active::after{display:none}
  .nav-mega{width:100%}
  .mega-trigger{justify-content:space-between}
  .mega-panel{
    position:static;width:100%;opacity:1;visibility:visible;transform:none;
    box-shadow:none;border:0;background:var(--primary-050);
    border-radius:12px;padding:0;margin-top:6px;display:none;
  }
  .nav-mega:hover .mega-panel{display:none}
  .nav-mega.is-open .mega-panel{display:block}
  .mega-grid{grid-template-columns:1fr;gap:18px;padding:16px}
  .mega-grid>div:last-child{grid-column:auto}
  .mega-entry{display:block}
  .mega-entry img{width:100%}
  .mega-foot{margin:0 16px 16px;padding-top:14px;flex-direction:column;align-items:flex-start;gap:10px}
  .header-actions .btn-accent{display:none}
  .article-layout{grid-template-columns:minmax(0,1fr);gap:28px;padding:28px 0 56px}
  .article-side{position:static}
  .grid-3{grid-template-columns:repeat(2,1fr)}
  .section{padding:56px 0}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
}
@media(max-width:767px){
  .topbar{display:none}
  .container{padding:0 16px}
  .header-inner{min-height:60px}
  .brand-mark{width:34px;height:34px}
  .logo-main{font-size:16px}
  .article-body{padding:22px 18px}
  .article-body h2{font-size:22px}
  .article-hero{padding:16px 0 26px}
  .breadcrumb .current{max-width:200px}
  .grid-3{grid-template-columns:1fr}
  .section-head{flex-direction:column;align-items:flex-start;gap:12px}
  .cta-band{flex-direction:column;align-items:flex-start;padding:26px 22px}
  .cta-actions{width:100%;flex-direction:column}
  .cta-actions .btn{width:100%}
  .footer-grid{grid-template-columns:1fr;gap:28px}
  .footer-bottom{flex-direction:column}
}
@media(max-width:480px){
  .article-body{padding:18px 14px}
  .card-body{padding:18px 16px 20px}
  .side-card{padding:18px}
}
@media(prefers-reduced-motion:reduce){
  *{transition-duration:.01ms !important;animation-duration:.01ms !important}
  html{scroll-behavior:auto}
  .card:hover,.btn:hover{transform:none}
}

/* roulang page: category1 */
:root{
  --c-primary:#1F6BE0;
  --c-primary-700:#1652B4;
  --c-primary-100:#E4EEFD;
  --c-primary-050:#F2F7FE;
  --c-accent:#F5A524;
  --c-accent-600:#D98A0F;
  --c-accent-100:#FEF3DC;
  --c-success:#17A79A;
  --c-warn:#E8A317;
  --c-error:#D93B3B;
  --t-main:#14213A;
  --t-body:#4A5A75;
  --t-muted:#8794AB;
  --c-white:#FFFFFF;
  --bg-page:#F4F7FC;
  --bg-card:#FFFFFF;
  --bg-block:#EAF1FB;
  --line:#E5EBF4;
  --line-soft:#DCE4F0;
  --r-card:16px;
  --r-sm:10px;
  --r-btn:12px;
  --r-img:12px;
  --sh-1:0 1px 2px rgba(20,33,58,.05),0 6px 18px rgba(20,33,58,.06);
  --sh-hover:0 8px 26px rgba(31,107,224,.14);
  --sh-panel:0 18px 48px rgba(20,33,58,.14);
  --font-cn:"PingFang SC","HarmonyOS Sans SC","Source Han Sans SC","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
  --font-num:"Inter",system-ui,-apple-system,"Segoe UI",sans-serif;
  --dur:180ms;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  font-family:var(--font-cn);
  font-size:16px;
  line-height:1.8;
  color:var(--t-body);
  background:var(--bg-page);
  -webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4{margin:0;color:var(--t-main);font-weight:700;line-height:1.3}
p{margin:0}
a{color:var(--c-primary);text-decoration:none;transition:color var(--dur) ease-out}
a:hover{color:var(--c-primary-700)}
img{max-width:100%;display:block;border-radius:var(--r-img)}
button{font-family:inherit;cursor:pointer;border:0;background:none}
ul{margin:0;padding:0;list-style:none}
:focus-visible{outline:2px solid var(--c-primary);outline-offset:2px}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 20px}
.no-scroll{overflow:hidden}

/* ---------- 头部 ---------- */
.site-header{
  position:sticky;top:0;z-index:80;
  background:#fff;
  border-bottom:1px solid var(--line);
  transition:box-shadow var(--dur) ease-out;
}
.site-header.is-stuck{box-shadow:0 8px 24px rgba(20,33,58,.08)}
.header-inner{display:flex;align-items:center;gap:20px;height:72px}
.logo{display:flex;align-items:center;gap:10px;flex-shrink:0}
.logo-mark{
  width:38px;height:38px;border-radius:11px;
  background:linear-gradient(135deg,#1F6BE0,#2BB3C9);
  display:grid;place-items:center;color:#fff;flex-shrink:0;
}
.logo-text{display:flex;flex-direction:column;line-height:1.15}
.logo-main{font-size:18px;font-weight:700;color:var(--t-main);letter-spacing:0}
.logo-sub{font-size:12px;font-weight:500;color:var(--c-primary)}
.nav-main{display:flex;align-items:stretch;gap:2px;margin-left:auto;height:100%}
.nav-link{
  position:relative;
  display:inline-flex;align-items:center;gap:5px;
  height:100%;padding:0 14px;
  font-size:15px;font-weight:600;color:var(--t-body);
  border-radius:10px;white-space:nowrap;
  transition:color var(--dur) ease-out,background-color var(--dur) ease-out;
}
.nav-link:hover{color:var(--c-primary);background:var(--c-primary-050)}
.nav-link.active{color:var(--c-primary)}
.nav-link.active::after{
  content:"";position:absolute;left:14px;right:14px;bottom:0;height:3px;
  background:var(--c-primary);border-radius:2px;
}
.mega-trigger{font:inherit}
.nav-link.mega-trigger:hover,.nav-mega:focus-within .mega-trigger,
.nav-mega:hover .mega-trigger{color:var(--c-primary);background:var(--c-primary-050)}
.chev{transition:transform var(--dur) ease-out}
.nav-mega:hover .chev,.nav-mega:focus-within .chev{transform:rotate(180deg)}
.nav-mega{position:relative;display:flex;align-items:stretch}
.mega-panel{
  position:absolute;top:calc(100% - 6px);right:0;width:840px;
  background:#fff;border:1px solid var(--line);border-radius:var(--r-card);
  box-shadow:var(--sh-panel);padding:24px;
  opacity:0;visibility:hidden;transform:translateY(10px);
  transition:opacity var(--dur) ease-out,transform var(--dur) ease-out,visibility var(--dur);
}
.nav-mega:hover .mega-panel,.nav-mega:focus-within .mega-panel{opacity:1;visibility:visible;transform:translateY(0)}
.mega-grid{display:grid;grid-template-columns:1.35fr 1.15fr 1fr;gap:24px}
.mega-col-title{font-size:13px;font-weight:600;color:var(--t-muted);margin-bottom:12px}
.mega-list{display:grid;grid-template-columns:1fr 1fr;gap:2px 12px}
.mega-list a{
  display:flex;align-items:center;gap:8px;
  font-size:14px;font-weight:500;color:var(--t-body);
  padding:7px 6px;border-radius:8px;
  transition:color var(--dur) ease-out,transform var(--dur) ease-out,background-color var(--dur) ease-out;
}
.mega-list a::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--c-primary-100);flex-shrink:0}
.mega-list a:hover{color:var(--c-primary);transform:translateX(2px)}
.mega-list a:hover::before{background:var(--c-primary)}
.mega-news{display:flex;flex-direction:column;gap:10px}
.mega-news a{display:block;padding:6px;border-radius:8px;transition:background-color var(--dur) ease-out}
.mega-news a b{display:block;font-size:14px;font-weight:600;color:var(--t-main);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.mega-news a span{font-size:12px;color:var(--t-muted)}
.mega-news a:hover{background:var(--c-primary-050)}
.mega-news a:hover b{color:var(--c-primary)}
.mega-entry img{
  width:100%;height:auto;aspect-ratio:16/9;object-fit:cover;
  border-radius:var(--r-img);margin-bottom:10px;
}
.mega-entry strong{display:block;font-size:14px;font-weight:600;color:var(--t-main)}
.mega-entry span{display:block;font-size:12px;color:var(--t-muted)}
.mega-foot{
  margin-top:18px;padding:10px 14px;border-radius:10px;background:var(--c-primary-050);
  display:flex;align-items:center;justify-content:space-between;gap:12px;font-size:13px;color:var(--t-muted);
}
.mega-foot a{font-weight:600}
.header-actions{display:flex;align-items:center;gap:10px;flex-shrink:0}
.nav-toggle{
  display:none;width:42px;height:42px;border-radius:var(--r-btn);
  border:1px solid var(--line-soft);background:#fff;color:var(--t-main);
  align-items:center;justify-content:center;
}
.nav-toggle:hover{background:var(--c-primary-050);border-color:var(--c-primary-100)}
.drawer{
  position:fixed;top:0;right:0;bottom:0;z-index:100;
  width:min(86vw,380px);background:#fff;
  box-shadow:-12px 0 40px rgba(20,33,58,.16);
  transform:translateX(100%);transition:transform 220ms ease-out;
  display:flex;flex-direction:column;overflow-y:auto;padding:20px;
}
.drawer.open{transform:translateX(0)}
.drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:16px}
.drawer-close{width:38px;height:38px;border-radius:10px;background:var(--c-primary-050);color:var(--t-main);display:grid;place-items:center}
.drawer-nav{display:flex;flex-direction:column;gap:4px;margin-bottom:20px}
.drawer-nav a{padding:12px 12px;border-radius:10px;font-size:15px;font-weight:600;color:var(--t-body)}
.drawer-nav a:hover,.drawer-nav a.active{background:var(--c-primary-050);color:var(--c-primary)}
.drawer-group-title{font-size:13px;font-weight:600;color:var(--t-muted);margin:8px 0 8px;padding-left:12px}
.drawer-links{display:flex;flex-direction:column;gap:2px;margin-bottom:16px}
.drawer-links a{padding:9px 12px;border-radius:8px;font-size:14px;color:var(--t-body)}
.drawer-links a:hover{background:var(--c-primary-050);color:var(--c-primary)}
.drawer-foot{margin-top:auto;display:flex;flex-direction:column;gap:10px;padding-top:16px;border-top:1px solid var(--line)}
.drawer-mask{position:fixed;inset:0;background:rgba(20,33,58,.4);opacity:0;visibility:hidden;transition:opacity var(--dur) ease-out;z-index:90}
.drawer-mask.open{opacity:1;visibility:visible}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 26px;border-radius:var(--r-btn);
  font-size:16px;font-weight:600;line-height:1;
  border:1px solid transparent;
  transition:background-color var(--dur) ease-out,color var(--dur) ease-out,
             transform var(--dur) ease-out,box-shadow var(--dur) ease-out,border-color var(--dur) ease-out;
}
.btn:active{transform:translateY(0)}
.btn-primary{background:var(--c-primary);color:#fff}
.btn-primary:hover{background:var(--c-primary-700);color:#fff;transform:translateY(-1px)}
.btn-accent{background:var(--c-accent);color:#14213A}
.btn-accent:hover{background:var(--c-accent-600);color:#14213A;transform:translateY(-1px)}
.btn-ghost{background:#fff;color:var(--c-primary);border-color:var(--line-soft)}
.btn-ghost:hover{background:var(--c-primary-050);border-color:var(--c-primary);transform:translateY(-1px)}
.btn-sm{height:40px;padding:0 18px;font-size:14px;border-radius:10px}
.btn-block{width:100%}
.btn[disabled]{opacity:.4;cursor:not-allowed;transform:none}
.btn-text{
  display:inline-flex;align-items:center;gap:6px;
  font-size:15px;font-weight:600;color:var(--c-primary);
}
.btn-text svg{transition:transform var(--dur) ease-out}
.btn-text:hover{text-decoration:underline}
.btn-text:hover svg{transform:translateX(2px)}
.btn-text:active{color:var(--c-primary-700)}

/* ---------- 通用板块 ---------- */
.section{padding:80px 0}
.section-block{background:var(--bg-block)}
.section-white{background:#fff}
.section-head{max-width:720px;margin-bottom:40px}
.section-head h2{font-size:clamp(24px,2.6vw,32px);margin-bottom:12px}
.section-head p{font-size:16px;color:var(--t-body)}
.eyebrow{
  display:inline-flex;align-items:center;gap:6px;
  font-size:13px;font-weight:600;color:var(--c-primary);
  background:var(--c-primary-100);border-radius:999px;padding:5px 14px;margin-bottom:14px;
}
.eyebrow::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--c-primary)}

/* ---------- 分类页头 ---------- */
.page-hero{
  position:relative;overflow:hidden;
  background:var(--c-primary-050);
  border-bottom:1px solid var(--line);
  padding:56px 0 64px;
}
.page-hero::after{
  content:"";position:absolute;left:0;right:0;bottom:0;height:4px;
  background:linear-gradient(90deg,rgba(31,107,224,.85),rgba(43,179,201,.65));
}
.page-hero-grid{display:grid;grid-template-columns:1.15fr .85fr;gap:48px;align-items:center}
.page-hero h1{font-size:clamp(30px,4.2vw,44px);margin-bottom:16px;letter-spacing:0}
.lead{font-size:17px;line-height:1.85;color:var(--t-body);margin-bottom:24px;max-width:600px}
.hero-cta{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:26px}
.hero-tags{display:flex;flex-wrap:wrap;gap:18px}
.hero-tags span{display:inline-flex;align-items:center;gap:7px;font-size:13px;font-weight:500;color:var(--t-body)}
.hero-tags span::before{content:"";width:7px;height:7px;border-radius:50%;background:var(--c-primary);flex-shrink:0}
.page-hero-media{
  margin:0;background:#fff;border:1px solid var(--line);border-radius:var(--r-card);
  box-shadow:var(--sh-1);overflow:hidden;
}
.page-hero-media img{width:100%;aspect-ratio:4/3;object-fit:cover;border-radius:0}
.page-hero-media figcaption{font-size:13px;color:var(--t-muted);padding:12px 16px;border-top:1px solid var(--line)}

/* ---------- 左文右卡 ---------- */
.intro-grid{display:grid;grid-template-columns:1.35fr .9fr;gap:48px;align-items:start}
.intro-text p+p{margin-top:18px}
.intro-text h2{font-size:26px;margin-bottom:18px}
.intro-side{display:flex;flex-direction:column;gap:20px}
.info-card{
  position:relative;background:var(--c-primary-050);
  border:1px solid var(--c-primary-100);border-radius:var(--r-card);
  padding:26px;
}
.info-card::before{
  content:"";position:absolute;left:0;top:24px;width:3px;height:34px;
  border-radius:0 3px 3px 0;background:linear-gradient(180deg,#1F6BE0,#2BB3C9);
}
.info-icon{
  width:40px;height:40px;border-radius:10px;background:#fff;
  border:1px solid var(--c-primary-100);
  display:grid;place-items:center;color:var(--c-primary);margin-bottom:14px;
}
.info-card h3{font-size:18px;margin-bottom:10px}
.info-card p{font-size:14px;line-height:1.75;color:var(--t-body)}
.info-card ul{margin-top:12px;display:flex;flex-direction:column;gap:8px}
.info-card li{position:relative;padding-left:16px;font-size:14px;color:var(--t-body)}
.info-card li::before{content:"";position:absolute;left:0;top:11px;width:6px;height:6px;border-radius:50%;background:var(--c-primary)}

/* ---------- 特性卡 ---------- */
.card-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.feature-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-card);
  padding:28px;box-shadow:var(--sh-1);
  transition:transform var(--dur) ease-out,box-shadow var(--dur) ease-out,border-color var(--dur) ease-out;
}
.feature-card:hover{transform:translateY(-2px);box-shadow:var(--sh-hover);border-color:var(--c-primary-100)}
.feature-top{
  display:flex;align-items:center;justify-content:space-between;gap:12px;margin-bottom:16px;
}
.feature-icon{
  width:40px;height:40px;border-radius:10px;background:var(--c-primary-050);
  display:grid;place-items:center;color:var(--c-primary);
}
.feature-num{font-family:var(--font-num);font-size:14px;font-weight:700;color:var(--t-muted)}
.feature-card h3{font-size:18px;margin-bottom:10px}
.feature-card p{font-size:15px;line-height:1.8}
.feature-note{
  display:block;margin-top:16px;padding-top:14px;border-top:1px dashed var(--line);
  font-size:13px;color:var(--t-muted);
}

/* ---------- 步骤 ---------- */
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:24px;counter-reset:step}
.step-card{
  position:relative;background:#fff;border:1px solid var(--line);
  border-radius:var(--r-card);padding:28px 24px;box-shadow:var(--sh-1);
  transition:transform var(--dur) ease-out,box-shadow var(--dur) ease-out;
}
.step-card:hover{transform:translateY(-2px);box-shadow:var(--sh-hover)}
.step-dot{
  width:32px;height:32px;border-radius:50%;background:var(--c-primary);color:#fff;
  font-family:var(--font-num);font-size:15px;font-weight:700;
  display:grid;place-items:center;margin-bottom:16px;
}
.step-card h3{font-size:18px;margin-bottom:10px}
.step-card p{font-size:15px;line-height:1.8;color:var(--t-body)}

/* ---------- 排行/列表 ---------- */
.rank-list{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-card);
  overflow:hidden;box-shadow:var(--sh-1);
}
.rank-row{
  display:flex;align-items:center;gap:18px;
  min-height:64px;padding:14px 24px;border-bottom:1px solid var(--line);
  transition:background-color var(--dur) ease-out;
}
.rank-row:last-child{border-bottom:0}
.rank-row:hover{background:var(--c-primary-050)}
.rank-no{
  width:28px;height:28px;border-radius:8px;background:var(--c-primary-100);
  color:var(--c-primary-700);font-family:var(--font-num);font-size:13px;font-weight:700;
  display:grid;place-items:center;flex-shrink:0;
}
.rank-row strong{font-size:15px;font-weight:600;color:var(--t-main);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.rank-row span{margin-left:auto;font-size:13px;color:var(--t-muted);white-space:nowrap}
.rank-row em{font-style:normal;font-size:13px;font-weight:600;color:var(--c-success);white-space:nowrap}

/* ---------- 数据卡 ---------- */
.stat-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px}
.stat-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-card);
  padding:26px;text-align:left;
}
.stat-card .num{
  font-family:var(--font-num);font-size:44px;font-weight:700;color:var(--c-primary);line-height:1.1;
}
.stat-card .num small{font-size:18px;font-weight:600;margin-left:4px}
.stat-card p{margin-top:10px;font-size:14px;color:var(--t-body)}

/* ---------- FAQ ---------- */
.faq-list{display:flex;flex-direction:column;gap:14px;max-width:860px}
.faq-item{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-btn);
  transition:border-color var(--dur) ease-out,background-color var(--dur) ease-out;
}
.faq-item:hover{border-color:var(--c-primary-100);background:var(--c-primary-050)}
.faq-item summary{
  list-style:none;cursor:pointer;
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:20px;font-size:16px;font-weight:600;color:var(--t-main);
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-icon{
  width:24px;height:24px;border-radius:8px;background:var(--c-primary-100);color:var(--c-primary-700);
  display:grid;place-items:center;flex-shrink:0;font-size:16px;font-weight:700;line-height:1;
  transition:transform var(--dur) ease-out;
}
.faq-item[open] .faq-icon{transform:rotate(45deg)}
.faq-body{padding:0 20px 20px;font-size:15px;line-height:1.75;color:var(--t-body)}

/* ---------- CTA ---------- */
.cta-band{
  background:var(--c-primary-700);border-radius:var(--r-card);
  padding:40px;display:flex;align-items:center;justify-content:space-between;gap:32px;
  color:#fff;
}
.cta-band h2{color:#fff;font-size:26px;margin-bottom:10px}
.cta-band p{color:rgba(255,255,255,.82);font-size:15px;max-width:620px}
.cta-actions{display:flex;gap:12px;flex-shrink:0}
.cta-band .btn-ghost{background:rgba(255,255,255,.1);color:#fff;border-color:rgba(255,255,255,.35)}
.cta-band .btn-ghost:hover{background:rgba(255,255,255,.2);border-color:#fff}
.link-row{margin-top:24px;display:flex;flex-wrap:wrap;gap:26px}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--t-main);color:rgba(255,255,255,.72);padding:64px 0 0;margin-top:0}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:40px}
.footer-brand .logo-main{color:#fff}
.footer-brand .logo-sub{color:#7FB0F5}
.footer-brand p{margin:16px 0 12px;font-size:14px;line-height:1.8;max-width:320px;color:rgba(255,255,255,.66)}
.footer-contact{font-size:13px;color:rgba(255,255,255,.52)}
.footer-title{font-size:15px;font-weight:600;color:#fff;margin-bottom:16px}
.footer-links{display:flex;flex-direction:column;gap:10px}
.footer-links a{font-size:14px;color:rgba(255,255,255,.72)}
.footer-links a:hover{color:var(--c-accent)}
.footer-bottom{
  margin-top:48px;padding:22px 0;border-top:1px solid rgba(255,255,255,.12);
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:13px;color:rgba(255,255,255,.52);
}

/* ---------- 响应式 ---------- */
@media (max-width:1199px){
  .mega-panel{width:640px}
  .mega-grid{grid-template-columns:1fr 1fr}
  .mega-grid > div:last-child{display:none}
  .page-hero-grid{gap:32px}
}
@media (max-width:991px){
  .nav-main{display:none}
  .nav-toggle{display:inline-flex}
  .header-inner{height:60px}
  .header-actions .btn{display:none}
  .section{padding:56px 0}
  .page-hero{padding:40px 0 48px}
  .page-hero-grid{grid-template-columns:1fr;gap:28px}
  .intro-grid{grid-template-columns:1fr;gap:32px}
  .card-grid{grid-template-columns:repeat(2,1fr)}
  .steps{grid-template-columns:repeat(2,1fr)}
  .stat-grid{grid-template-columns:repeat(2,1fr)}
  .footer-grid{grid-template-columns:repeat(2,1fr);gap:32px}
  .cta-band{flex-direction:column;align-items:flex-start;padding:32px}
  .cta-actions{width:100%}
}
@media (max-width:767px){
  body{font-size:15px}
  .container{padding:0 16px}
  .card-grid,.steps,.stat-grid{grid-template-columns:1fr}
  .section{padding:48px 0}
  .section-head{margin-bottom:28px}
  .hero-cta .btn{width:100%}
  .cta-actions .btn{width:100%}
  .rank-row{flex-wrap:wrap;gap:10px;padding:14px 18px}
  .rank-row span,.rank-row em{margin-left:0}
  .footer-grid{grid-template-columns:1fr}
  .mega-panel{display:none}
}
@media (max-width:480px){
  .page-hero::after{display:none}
  .feature-card,.info-card,.step-card,.stat-card{padding:20px}
  .stat-card .num{font-size:36px}
  .faq-item summary{padding:16px;font-size:15px}
  .faq-body{padding:0 16px 16px}
  .site-footer{padding-top:48px}
}
@media (prefers-reduced-motion:reduce){
  *{transition-duration:0.01ms !important;animation-duration:0.01ms !important}
  .feature-card:hover,.step-card:hover,.btn:hover{transform:none}
}

/* roulang page: category3 */
:root{
  --c600:#1F6BE0;
  --c700:#1652B4;
  --c100:#E4EEFD;
  --c050:#F2F7FE;
  --a500:#F5A524;
  --a600:#D98A0F;
  --a100:#FEF3DC;
  --ok:#17A79A;
  --warn:#E8A317;
  --err:#D93B3B;
  --t1:#14213A;
  --t2:#4A5A75;
  --t3:#8794AB;
  --inv:#FFFFFF;
  --bg:#F4F7FC;
  --card:#FFFFFF;
  --soft:#EAF1FB;
  --line:#E5EBF4;
  --line-2:#DCE4F0;
  --r-lg:16px;
  --r-md:12px;
  --r-sm:10px;
  --sh-1:0 1px 2px rgba(20,33,58,.05),0 6px 18px rgba(20,33,58,.06);
  --sh-2:0 8px 26px rgba(31,107,224,.14);
  --sh-3:0 18px 48px rgba(20,33,58,.14);
  --font-cn:"PingFang SC","HarmonyOS Sans SC","Source Han Sans SC","Microsoft YaHei",system-ui,-apple-system,sans-serif;
  --font-num:"Inter",system-ui,-apple-system,"Segoe 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-cn);
  font-size:16px;
  line-height:1.8;
  color:var(--t2);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border-style:none;}
a{color:var(--c600);text-decoration:none;transition:color .18s ease-out;}
a:hover{color:var(--c700);text-decoration:underline;}
h1,h2,h3,h4{color:var(--t1);margin:0;font-weight:700;line-height:1.3;letter-spacing:0;}
p{margin:0;}
ul,ol{margin:0;padding:0;list-style:none;}
button,input,select,textarea{font:inherit;color:inherit;}
button{cursor:pointer;border:none;background:none;}
:focus-visible{outline:2px solid var(--c600);outline-offset:2px;border-radius:4px;}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 20px;}
.container-wide{max-width:1200px;}
.section{padding:80px 0;}
.section-tight{padding:56px 0;}
.bg-soft{background:var(--soft);}
.bg-card{background:var(--card);}
.section-head{margin-bottom:32px;}
.section-head h2{font-size:28px;line-height:1.3;}
.section-head p{margin-top:12px;font-size:15px;color:var(--t3);max-width:760px;}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;font-weight:600;color:var(--c700);
  background:var(--c100);border-radius:999px;padding:4px 14px;
  margin-bottom:14px;line-height:1.6;
}
.lead{font-size:16px;color:var(--t2);}

/* ---------- header ---------- */
.site-header{
  position:sticky;top:0;z-index:120;
  background:#fff;border-bottom:1px solid var(--line);
  transition:box-shadow .2s ease-out;
}
.site-header.is-stuck{box-shadow:0 8px 24px rgba(20,33,58,.08);}
.header-inner{
  display:flex;align-items:center;justify-content:space-between;
  gap:24px;min-height:72px;
}
.logo{display:flex;align-items:center;gap:10px;text-decoration:none;}
.logo:hover{text-decoration:none;}
.logo-mark{
  width:38px;height:38px;border-radius:11px;flex:0 0 auto;
  background:linear-gradient(135deg,var(--c600),#2F9BD8);
  display:flex;align-items:center;justify-content:center;color:#fff;
}
.logo-text{display:flex;flex-direction:column;line-height:1.15;}
.logo-main{font-size:18px;font-weight:700;color:var(--t1);letter-spacing:.2px;}
.logo-sub{font-size:12px;font-weight:500;color:var(--c600);letter-spacing:2px;}
.nav-main{display:flex;align-items:center;gap:6px;}
.nav-link{
  position:relative;display:inline-flex;align-items:center;gap:6px;
  padding:10px 14px;border-radius:10px;
  font-size:15px;font-weight:500;color:var(--t1);
  transition:color .18s ease-out,background-color .18s ease-out;
}
.nav-link:hover{color:var(--c600);background:var(--c050);text-decoration:none;}
.nav-link.active{color:var(--c600);}
.nav-link.active::after{
  content:"";position:absolute;left:14px;right:14px;bottom:2px;
  height:3px;border-radius:3px;background:var(--c600);
}
.nav-mega{position:relative;}
.mega-trigger{font-weight:500;}
.mega-trigger .chev{transition:transform .18s ease-out;}
.nav-mega:hover .mega-trigger,
.nav-mega:focus-within .mega-trigger{color:var(--c600);background:var(--c050);}
.nav-mega:hover .chev,
.nav-mega:focus-within .chev{transform:rotate(180deg);}
.mega-panel{
  position:absolute;top:calc(100% + 12px);right:-60px;width:780px;
  background:#fff;border:1px solid var(--line);border-radius:16px;
  box-shadow:var(--sh-3);padding:22px;
  opacity:0;visibility:hidden;transform:translateY(8px);
  transition:opacity .2s ease-out,transform .2s ease-out,visibility .2s;
}
.nav-mega:hover .mega-panel,
.nav-mega:focus-within .mega-panel{opacity:1;visibility:visible;transform:translateY(0);}
.mega-grid{display:grid;grid-template-columns:1.1fr 1.2fr .9fr;gap:24px;}
.mega-col-title{font-size:13px;font-weight:600;color:var(--t3);margin-bottom:12px;}
.mega-list{display:grid;grid-template-columns:1fr 1fr;gap:4px 12px;}
.mega-list a{
  display:flex;align-items:center;gap:8px;
  font-size:14px;color:var(--t1);padding:6px 8px;border-radius:8px;
  transition:color .16s ease-out,transform .16s ease-out,background-color .16s ease-out;
}
.mega-list a::before{
  content:"";width:12px;height:12px;border-radius:50%;
  background:var(--c100);border:3px solid var(--c600);flex:0 0 auto;
}
.mega-list a:hover{color:var(--c600);background:var(--c050);transform:translateX(2px);text-decoration:none;}
.mega-news a{
  display:block;padding:8px 0;border-bottom:1px dashed var(--line);
}
.mega-news a:last-child{border-bottom:none;}
.mega-news b{display:block;font-size:14px;font-weight:600;color:var(--t1);white-space:nowrap;overflow:hidden;text-overflow:ellipsis;}
.mega-news span{font-size:12px;color:var(--t3);}
.mega-news a:hover b{color:var(--c600);}
.mega-entry{
  border:1px solid var(--line);border-radius:var(--r-md);overflow:hidden;background:var(--c050);
}
.mega-entry img{width:100%;aspect-ratio:16/9;object-fit:cover;}
.mega-entry div{padding:12px 14px;}
.mega-entry strong{display:block;font-size:14px;color:var(--t1);}
.mega-entry span{font-size:12px;color:var(--t3);}
.mega-foot{
  margin-top:18px;padding:12px 16px;border-radius:var(--r-sm);
  background:var(--c050);font-size:13px;color:var(--t2);
  display:flex;align-items:center;justify-content:space-between;gap:12px;
}
.mega-foot a{font-weight:600;}
.header-actions{display:flex;align-items:center;gap:12px;}
.menu-toggle{
  display:none;width:44px;height:44px;border-radius:var(--r-sm);
  border:1px solid var(--line-2);align-items:center;justify-content:center;color:var(--t1);
}
.menu-toggle:hover{background:var(--c050);}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 26px;border-radius:var(--r-md);
  font-size:15px;font-weight:600;line-height:1;text-decoration:none;
  transition:background-color .18s ease-out,color .18s ease-out,transform .18s ease-out,box-shadow .18s ease-out,border-color .18s ease-out;
}
.btn:hover{text-decoration:none;transform:translateY(-1px);}
.btn:active{transform:translateY(0);}
.btn-primary{background:var(--c600);color:#fff;}
.btn-primary:hover{background:var(--c700);color:#fff;}
.btn-accent{background:var(--a500);color:#14213A;}
.btn-accent:hover{background:var(--a600);color:#14213A;}
.btn-ghost{background:#fff;color:var(--c600);border:1px solid var(--line-2);}
.btn-ghost:hover{background:var(--c050);border-color:var(--c600);color:var(--c700);}
.btn-sm{height:40px;padding:0 18px;font-size:14px;}
.btn[disabled],.btn.is-disabled{opacity:.4;cursor:not-allowed;transform:none;}
.link-arrow{
  display:inline-flex;align-items:center;gap:6px;font-size:15px;font-weight:600;color:var(--c600);
}
.link-arrow svg{transition:transform .16s ease-out;}
.link-arrow:hover{text-decoration:underline;}
.link-arrow:hover svg{transform:translateX(2px);}
.btn-row{display:flex;flex-wrap:wrap;gap:14px;align-items:center;}

/* ---------- breadcrumb ---------- */
.crumb{font-size:13px;color:var(--t3);padding:18px 0 0;}
.crumb a{color:var(--t3);}
.crumb a:hover{color:var(--c600);}
.crumb span.sep{margin:0 8px;color:var(--line-2);}
.crumb .current{color:var(--t2);font-weight:600;}

/* ---------- hero ---------- */
.page-hero{
  background:var(--c050);
  border-bottom:1px solid var(--line);
  padding:44px 0 56px;
  position:relative;
  overflow:hidden;
}
.page-hero::after{
  content:"";position:absolute;left:0;right:0;bottom:0;height:64px;
  background:linear-gradient(90deg,rgba(31,107,224,.10),rgba(47,155,216,.02));
  pointer-events:none;
}
.hero-grid{
  display:grid;grid-template-columns:1.25fr .95fr;gap:44px;align-items:center;
  position:relative;z-index:1;
}
.page-hero h1{
  font-size:clamp(30px,4.2vw,44px);font-weight:700;line-height:1.25;
  margin:16px 0 18px;
}
.page-hero .hero-lead{font-size:16px;line-height:1.85;color:var(--t2);max-width:560px;}
.hero-tags{display:flex;flex-wrap:wrap;gap:10px;margin-top:24px;}
.tag{
  display:inline-flex;align-items:center;gap:8px;
  font-size:12px;font-weight:600;color:var(--c700);
  background:#fff;border:1px solid var(--line-2);border-radius:999px;
  padding:6px 14px;line-height:1.6;
}
.tag::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--c600);}
.hero-media{
  border-radius:var(--r-lg);overflow:hidden;border:1px solid var(--line);
  box-shadow:var(--sh-1);background:#fff;
}
.hero-media img{width:100%;aspect-ratio:16/10;object-fit:cover;}
.hero-media figcaption{
  font-size:13px;color:var(--t3);padding:12px 16px;line-height:1.6;
  border-top:1px solid var(--line);background:#fff;
}

/* ---------- table ---------- */
.table-wrap{
  border:1px solid var(--line);border-radius:var(--r-lg);background:#fff;
  box-shadow:var(--sh-1);overflow-x:auto;-webkit-overflow-scrolling:touch;
}
table.compare{
  width:100%;min-width:720px;border-collapse:collapse;font-size:14.5px;
}
table.compare caption{
  text-align:left;padding:18px 22px;font-size:14px;color:var(--t3);
  border-bottom:1px solid var(--line);
}
table.compare th,table.compare td{
  padding:0 20px;height:52px;text-align:left;vertical-align:middle;
  border-bottom:1px solid var(--line);line-height:1.6;
}
table.compare thead th{
  background:var(--soft);color:var(--t1);font-weight:600;font-size:14px;
  height:52px;position:sticky;top:0;z-index:2;
}
table.compare tbody tr:nth-child(even) td{background:#FAFCFF;}
table.compare tbody tr:hover td{background:var(--c050);}
table.compare th:first-child,table.compare td:first-child{
  position:sticky;left:0;z-index:3;background:#fff;
  font-weight:600;color:var(--t1);min-width:132px;
  box-shadow:1px 0 0 var(--line);
}
table.compare thead th:first-child{background:var(--soft);z-index:4;}
table.compare tbody tr:nth-child(even) td:first-child{background:#FAFCFF;}
table.compare tbody tr:hover td:first-child{background:var(--c050);}
.tip-note{
  margin-top:16px;font-size:13px;color:var(--t3);display:flex;gap:8px;align-items:flex-start;
}
.tip-note svg{flex:0 0 auto;margin-top:3px;color:var(--c600);}

/* ---------- cards ---------- */
.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;}
.grid-2{display:grid;grid-template-columns:repeat(2,1fr);gap:24px;}
.feature-card{
  position:relative;background:#fff;border:1px solid var(--line);
  border-radius:var(--r-lg);padding:26px;box-shadow:var(--sh-1);
  transition:transform .2s ease-out,box-shadow .2s ease-out,border-color .2s ease-out;
}
.feature-card::before{
  content:"";position:absolute;top:0;left:26px;width:44px;height:3px;
  border-radius:0 0 3px 3px;background:var(--c600);
}
.feature-card:hover{transform:translateY(-2px);box-shadow:var(--sh-2);border-color:var(--c100);}
.feature-icon{
  width:40px;height:40px;border-radius:var(--r-sm);background:var(--c050);
  display:flex;align-items:center;justify-content:center;color:var(--c600);
  margin:14px 0 16px;
}
.feature-card h3{font-size:19px;font-weight:600;line-height:1.45;margin-bottom:10px;}
.feature-card p{font-size:14.5px;color:var(--t2);}
.feature-card .meta{margin-top:16px;font-size:13px;color:var(--t3);}

.entry-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);
  overflow:hidden;box-shadow:var(--sh-1);display:flex;flex-direction:column;
  transition:transform .2s ease-out,box-shadow .2s ease-out;
}
.entry-card:hover{transform:translateY(-2px);box-shadow:var(--sh-2);}
.entry-card img{width:100%;aspect-ratio:16/9;object-fit:cover;}
.entry-card .entry-body{padding:22px 24px 26px;}
.entry-card h3{font-size:18px;font-weight:600;margin-bottom:10px;line-height:1.45;}
.entry-card p{font-size:14.5px;color:var(--t2);}
.badge{
  display:inline-block;font-size:12px;font-weight:600;color:var(--c700);
  background:var(--c100);border-radius:var(--r-sm);padding:3px 10px;line-height:1.7;
}
.badge-warm{color:var(--a600);background:var(--a100);}
.badge-ok{color:#0F7C72;background:#DDF3F0;}

/* ---------- list rows ---------- */
.list-rows{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);
  box-shadow:var(--sh-1);overflow:hidden;
}
.list-rows .row{
  display:flex;align-items:center;justify-content:space-between;gap:18px;
  min-height:60px;padding:14px 22px;border-bottom:1px solid var(--line);
  transition:background-color .16s ease-out;
}
.list-rows .row:last-child{border-bottom:none;}
.list-rows .row:hover{background:var(--c050);}
.row-title{font-size:15px;font-weight:600;color:var(--t1);line-height:1.6;}
.row-desc{font-size:13.5px;color:var(--t3);margin-top:2px;}
.row-side{flex:0 0 auto;font-size:13px;color:var(--t3);}

/* ---------- faq ---------- */
.faq-list{display:grid;gap:14px;max-width:900px;}
.faq-item{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-md);
  box-shadow:var(--sh-1);overflow:hidden;
  transition:border-color .18s ease-out,background-color .18s ease-out;
}
.faq-item:hover{border-color:var(--c100);background:var(--c050);}
.faq-item summary{
  list-style:none;cursor:pointer;padding:20px;
  display:flex;align-items:flex-start;justify-content:space-between;gap:16px;
  font-size:16px;font-weight:600;color:var(--t1);line-height:1.6;
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary .mark{
  flex:0 0 auto;width:22px;height:22px;border-radius:50%;
  background:var(--c100);color:var(--c700);font-size:16px;font-weight:700;
  display:flex;align-items:center;justify-content:center;line-height:1;
  transition:transform .2s ease-out,background-color .2s ease-out,color .2s ease-out;
  margin-top:2px;
}
.faq-item[open] summary .mark{transform:rotate(45deg);background:var(--c600);color:#fff;}
.faq-item .faq-answer{
  padding:0 20px 20px;font-size:15px;line-height:1.75;color:var(--t2);
  border-top:1px dashed var(--line);margin-top:-2px;padding-top:16px;
}

/* ---------- cta band ---------- */
.cta-band{
  background:var(--c700);border-radius:var(--r-lg);
  padding:36px 40px;display:flex;align-items:center;justify-content:space-between;
  gap:28px;color:#fff;box-shadow:var(--sh-1);
}
.cta-band h2{color:#fff;font-size:24px;line-height:1.35;}
.cta-band p{color:rgba(255,255,255,.82);font-size:14.5px;margin-top:8px;max-width:620px;}
.cta-band .btn-ghost{background:#fff;color:var(--c700);border-color:#fff;}
.cta-band .btn-ghost:hover{background:var(--c050);color:var(--c700);}

/* ---------- footer ---------- */
.site-footer{background:#14213A;color:rgba(255,255,255,.78);margin-top:0;padding:64px 0 0;}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:36px;}
.footer-brand .logo-text{margin-bottom:14px;}
.footer-brand .logo-main{color:#fff;}
.footer-brand .logo-sub{color:#7FB2F5;}
.footer-brand p{font-size:14px;line-height:1.8;max-width:300px;color:rgba(255,255,255,.66);}
.footer-contact{
  margin-top:16px;font-size:13px;color:rgba(255,255,255,.6);
  border-left:3px solid var(--a500);padding-left:12px;
}
.footer-title{font-size:15px;font-weight:600;color:#fff;margin-bottom:16px;}
.footer-links{display:grid;gap:10px;}
.footer-links a{font-size:14px;color:rgba(255,255,255,.72);}
.footer-links a:hover{color:var(--a500);text-decoration:none;}
.footer-bottom{
  margin-top:48px;border-top:1px solid rgba(255,255,255,.12);
  padding:20px 0 26px;display:flex;flex-wrap:wrap;gap:10px 24px;
  justify-content:space-between;font-size:13px;color:rgba(255,255,255,.55);
}

/* ---------- drawer ---------- */
.drawer-mask{
  position:fixed;inset:0;background:rgba(20,33,58,.45);
  opacity:0;visibility:hidden;transition:opacity .2s ease-out,visibility .2s;z-index:200;
}
.drawer-mask.open{opacity:1;visibility:visible;}
.drawer{
  position:fixed;top:0;right:0;bottom:0;width:min(86vw,380px);z-index:210;
  background:#fff;box-shadow:var(--sh-3);
  transform:translateX(102%);transition:transform .22s ease-out;
  display:flex;flex-direction:column;overflow-y:auto;
}
.drawer.open{transform:translateX(0);}
.drawer-head{
  display:flex;align-items:center;justify-content:space-between;
  padding:16px 20px;border-bottom:1px solid var(--line);
}
.drawer-close{
  width:40px;height:40px;border-radius:var(--r-sm);border:1px solid var(--line-2);
  display:flex;align-items:center;justify-content:center;color:var(--t1);
}
.drawer-nav{padding:14px 16px 24px;display:grid;gap:6px;}
.drawer-nav a.drawer-link{
  display:block;padding:12px 14px;border-radius:var(--r-sm);
  font-size:15px;font-weight:600;color:var(--t1);
}
.drawer-nav a.drawer-link:hover{background:var(--c050);color:var(--c600);text-decoration:none;}
.drawer-nav a.drawer-link.active{background:var(--c100);color:var(--c700);}
.drawer-sub{padding:6px 14px 12px;display:grid;gap:8px;}
.drawer-sub a{font-size:14px;color:var(--t2);}
.drawer-sub a:hover{color:var(--c600);}
.drawer-entry{
  margin:8px 14px 0;border:1px solid var(--line);border-radius:var(--r-md);
  overflow:hidden;background:var(--c050);
}
.drawer-entry img{width:100%;aspect-ratio:16/9;object-fit:cover;}
.drawer-entry div{padding:12px 14px;}
.drawer-entry strong{display:block;font-size:14px;color:var(--t1);}
.drawer-entry span{font-size:12px;color:var(--t3);}
.drawer-foot{margin:18px 14px 8px;display:grid;gap:10px;}

/* ---------- reveal / states ---------- */
.skeleton{
  background:linear-gradient(90deg,#EEF2F8 25%,#F7F9FC 37%,#EEF2F8 63%);
  background-size:400% 100%;animation:sk 1.2s ease-in-out infinite;
  border-radius:8px;height:14px;
}
@keyframes sk{0%{background-position:100% 50%}100%{background-position:0 50%}}
.empty-state{
  background:#fff;border:1px dashed var(--line-2);border-radius:var(--r-lg);
  padding:46px 24px;text-align:center;color:var(--t3);
}
.empty-state svg{color:var(--c600);margin:0 auto 14px;}
.empty-state p{font-size:14px;margin-bottom:18px;}

/* ---------- responsive ---------- */
@media (max-width:1199px){
  .mega-panel{width:640px;right:-30px;}
  .mega-grid{grid-template-columns:1fr 1fr;}
  .mega-grid > div:last-child{grid-column:1 / -1;}
  .hero-grid{grid-template-columns:1fr;gap:32px;}
  .grid-3{grid-template-columns:repeat(2,1fr);}
  .footer-grid{grid-template-columns:1.4fr 1fr 1fr;gap:28px;}
}
@media (max-width:991px){
  .nav-main{display:none;}
  .menu-toggle{display:inline-flex;}
  .header-actions .btn-accent{display:none;}
  .section{padding:64px 0;}
}
@media (max-width:767px){
  body{font-size:15px;}
  .header-inner{min-height:60px;gap:12px;}
  .logo-main{font-size:16px;}
  .logo-sub{font-size:11px;letter-spacing:1px;}
  .section{padding:48px 0;}
  .section-tight{padding:40px 0;}
  .section-head h2{font-size:22px;}
  .grid-3,.grid-2{grid-template-columns:1fr;}
  .page-hero{padding:28px 0 40px;}
  .btn-row{flex-direction:column;align-items:stretch;}
  .btn-row .btn{width:100%;}
  .cta-band{flex-direction:column;align-items:flex-start;padding:28px 24px;}
  .cta-band .btn{width:100%;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:26px;}
  .footer-brand{grid-column:1 / -1;}
  .footer-bottom{flex-direction:column;gap:8px;}
  .list-rows .row{flex-direction:column;align-items:flex-start;gap:6px;}
  .row-side{font-size:12.5px;}
  table.compare{caption-side:top;}
}
@media (max-width:480px){
  .container{padding:0 16px;}
  .feature-card,.entry-card .entry-body{padding:20px;}
  .faq-item summary{padding:16px;font-size:15px;}
  .faq-item .faq-answer{padding:14px 16px 18px;}
  .hero-media figcaption{padding:10px 12px;}
  .mega-panel{display:none;}
}
@media (prefers-reduced-motion:reduce){
  *{animation-duration:.001ms !important;animation-iteration-count:1 !important;transition-duration:.001ms !important;}
  .feature-card:hover,.entry-card:hover,.btn:hover{transform:none;}
}

/* roulang page: category2 */
:root{
  --primary-600:#1F6BE0;
  --primary-700:#1652B4;
  --primary-100:#E4EEFD;
  --primary-050:#F2F7FE;
  --accent-500:#F5A524;
  --accent-600:#D98A0F;
  --accent-100:#FEF3DC;
  --success:#17A79A;
  --warn:#E8A317;
  --danger:#D93B3B;
  --text:#14213A;
  --text-body:#4A5A75;
  --text-muted:#8794AB;
  --bg:#F4F7FC;
  --card:#FFFFFF;
  --block:#EAF1FB;
  --line:#E5EBF4;
  --border:#DCE4F0;
  --r-card:16px;
  --r-sm:10px;
  --r-btn:12px;
  --shadow-1:0 1px 2px rgba(20,33,58,.05),0 6px 18px rgba(20,33,58,.06);
  --shadow-2:0 8px 26px rgba(31,107,224,.14);
  --shadow-3:0 18px 48px rgba(20,33,58,.14);
  --shell:1200px;
  --font-cn:"PingFang SC","HarmonyOS Sans SC","Source Han Sans SC","Microsoft YaHei",system-ui,-apple-system,"Segoe 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-cn);
  font-size:16px;
  line-height:1.8;
  color:var(--text-body);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;}
a{color:inherit;text-decoration:none;}
button{font:inherit;color:inherit;background:none;border:none;cursor:pointer;}
ul,ol{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4{margin:0;color:var(--text);font-weight:700;line-height:1.3;letter-spacing:0;}
p{margin:0;}
strong{color:var(--text);}
:focus-visible{outline:2px solid var(--primary-600);outline-offset:2px;border-radius:6px;}

.container{max-width:var(--shell);margin:0 auto;padding:0 20px;}

/* ---------- 顶部导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  background:#fff;
  border-bottom:1px solid var(--line);
  transition:box-shadow .2s ease-out;
}
.site-header.is-scrolled{box-shadow:0 8px 24px rgba(20,33,58,.08);}
.header-inner{display:flex;align-items:center;height:72px;gap:28px;}

.logo{display:flex;align-items:center;gap:10px;flex:0 0 auto;}
.logo-mark{
  width:40px;height:40px;border-radius:11px;
  background:linear-gradient(135deg,#1F6BE0,#2E8BD8);
  display:grid;place-items:center;flex:0 0 40px;
}
.logo-mark svg{width:22px;height:22px;}
.logo-text{display:flex;flex-direction:column;line-height:1.12;}
.logo-main{font-size:18px;font-weight:700;color:var(--text);}
.logo-sub{font-size:12px;font-weight:500;color:var(--primary-600);}

.nav-main{display:flex;align-items:center;gap:2px;margin-right:auto;}
.nav-link{
  position:relative;
  display:inline-flex;align-items:center;gap:6px;
  height:72px;padding:0 14px;
  font-size:15px;font-weight:500;color:var(--text-body);
  white-space:nowrap;
  transition:color .18s ease-out,background-color .18s ease-out;
}
.nav-link:hover{color:var(--primary-600);}
.nav-link.active{color:var(--primary-600);font-weight:600;}
.nav-link.active::after{
  content:"";position:absolute;left:14px;right:14px;bottom:0;height:3px;
  background:var(--primary-600);border-radius:3px 3px 0 0;
}
.mega-trigger .chev{transition:transform .18s ease-out;}
.nav-mega{position:relative;}
.nav-mega:hover .mega-trigger,
.nav-mega:focus-within .mega-trigger{color:var(--primary-600);background:var(--primary-050);}
.nav-mega:hover .chev,
.nav-mega:focus-within .chev{transform:rotate(180deg);}

.mega-panel{
  position:absolute;top:calc(100% - 4px);right:0;
  width:720px;padding:24px;
  background:#fff;border:1px solid var(--line);border-radius:16px;
  box-shadow:var(--shadow-3);
  opacity:0;visibility:hidden;transform:translateY(8px);
  transition:opacity .18s ease-out,transform .18s ease-out,visibility .18s;
}
.nav-mega:hover .mega-panel,
.nav-mega:focus-within .mega-panel{opacity:1;visibility:visible;transform:translateY(0);}
.mega-grid{display:grid;grid-template-columns:1.4fr 1.1fr 1fr;gap:24px;}
.mega-col-title{font-size:13px;font-weight:600;color:var(--text-muted);margin-bottom:12px;}
.mega-list{display:grid;grid-template-columns:1fr 1fr;gap:10px 14px;}
.mega-list a{
  position:relative;padding-left:16px;
  font-size:14px;color:var(--text-body);
  transition:color .16s ease-out,transform .16s ease-out;
}
.mega-list a::before{
  content:"";position:absolute;left:0;top:50%;transform:translateY(-50%);
  width:6px;height:6px;border-radius:50%;background:var(--primary-600);
}
.mega-list a:hover{color:var(--primary-600);transform:translateX(2px);}
.mega-news{display:flex;flex-direction:column;gap:12px;}
.mega-news a{display:flex;flex-direction:column;gap:2px;}
.mega-news b{
  font-size:14px;font-weight:600;color:var(--text);
  white-space:nowrap;overflow:hidden;text-overflow:ellipsis;
  transition:color .16s ease-out;
}
.mega-news a:hover b{color:var(--primary-600);}
.mega-news span{font-size:12px;color:var(--text-muted);}
.mega-entry{
  background:var(--primary-050);border:1px solid var(--line);border-radius:14px;
  padding:12px;display:flex;flex-direction:column;gap:10px;
}
.mega-entry img{width:100%;aspect-ratio:16/9;object-fit:cover;border-radius:10px;}
.mega-entry strong{display:block;font-size:14px;font-weight:600;}
.mega-entry span{font-size:12px;color:var(--text-muted);}
.mega-foot{
  margin-top:20px;padding:12px 16px;border-radius:12px;background:var(--block);
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  font-size:13px;color:var(--text-body);
}
.mega-foot a{font-weight:600;color:var(--primary-600);}
.mega-foot a:hover{text-decoration:underline;}

.header-actions{display:flex;align-items:center;gap:12px;flex:0 0 auto;}
.nav-toggle{
  display:none;width:40px;height:40px;border-radius:10px;
  border:1px solid var(--border);background:#fff;
  flex-direction:column;align-items:center;justify-content:center;gap:4px;
}
.nav-toggle span{display:block;width:16px;height:2px;border-radius:2px;background:var(--text);}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 26px;border-radius:var(--r-btn);
  font-size:16px;font-weight:600;line-height:1;border:1px solid transparent;
  transition:background-color .18s ease-out,color .18s ease-out,border-color .18s ease-out,transform .16s ease-out,box-shadow .18s ease-out;
}
.btn:hover{transform:translateY(-1px);}
.btn:active{transform:translateY(0);}
.btn-primary{background:var(--primary-600);color:#fff;}
.btn-primary:hover{background:var(--primary-700);}
.btn-accent{background:var(--accent-500);color:#14213A;}
.btn-accent:hover{background:var(--accent-600);color:#fff;}
.btn-ghost{background:#fff;border-color:var(--border);color:var(--primary-600);}
.btn-ghost:hover{background:var(--primary-050);border-color:var(--primary-600);}
.btn-sm{height:40px;padding:0 18px;font-size:14px;border-radius:10px;}
.btn-block{width:100%;}
.btn[disabled],.btn.is-disabled{opacity:.4;cursor:not-allowed;transform:none;}
.btn-text{
  display:inline-flex;align-items:center;gap:6px;
  font-size:14px;font-weight:600;color:var(--primary-600);
}
.btn-text svg{transition:transform .16s ease-out;}
.btn-text:hover{text-decoration:underline;}
.btn-text:hover svg{transform:translateX(2px);}

/* ---------- 通用标签 ---------- */
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  height:28px;padding:0 12px;border-radius:999px;
  background:var(--primary-100);color:var(--primary-700);
  font-size:13px;font-weight:600;line-height:1;
}
.badge{
  display:inline-flex;align-items:center;height:24px;padding:0 10px;
  border-radius:8px;font-size:12px;font-weight:600;line-height:1;
}
.badge-blue{background:var(--primary-100);color:var(--primary-700);}
.badge-amber{background:var(--accent-100);color:var(--accent-600);}
.badge-green{background:rgba(23,167,154,.12);color:#0E8378;}

/* ---------- 板块基础 ---------- */
.section{padding:80px 0;}
.section-white{background:#fff;}
.section-tint{background:var(--block);}
.section-soft{background:var(--primary-050);}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:32px;margin-bottom:40px;}
.section-head h2{font-size:clamp(24px,3vw,32px);}
.section-head .head-desc{margin-top:10px;font-size:15px;color:var(--text-muted);max-width:660px;}
.section-head .head-side{flex:0 0 auto;}

/* ---------- 分类页首屏 ---------- */
.page-hero{
  position:relative;overflow:hidden;
  background:linear-gradient(180deg,#F2F7FE 0%,#F4F7FC 100%);
  padding:40px 0 72px;
}
.page-hero::before{
  content:"";position:absolute;inset:0;
  background-image:radial-gradient(#1F6BE0 1px,transparent 1px);
  background-size:22px 22px;opacity:.05;
  pointer-events:none;
}
.hero-grid{
  position:relative;display:grid;grid-template-columns:1.05fr .95fr;
  gap:56px;align-items:center;
}
.breadcrumb{display:flex;align-items:center;gap:8px;font-size:13px;color:var(--text-muted);margin-bottom:18px;flex-wrap:wrap;}
.breadcrumb a{transition:color .16s ease-out;}
.breadcrumb a:hover{color:var(--primary-600);}
.breadcrumb .sep{color:#C3CCDA;}
.breadcrumb .current{color:var(--text-body);}
.page-hero h1{
  font-size:clamp(30px,4.2vw,44px);
  line-height:1.25;margin:16px 0 18px;
}
.hero-lead{font-size:17px;line-height:1.85;color:var(--text-body);max-width:560px;}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:28px;}
.hero-tags{display:flex;flex-wrap:wrap;gap:20px;margin-top:26px;}
.hero-tags li{display:flex;align-items:center;gap:8px;font-size:13px;color:var(--text-muted);}
.hero-tags li::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--primary-600);}
.hero-visual{position:relative;}
.hero-visual img{
  width:100%;aspect-ratio:16/10;object-fit:cover;
  border-radius:16px;box-shadow:var(--shadow-3);
}
.hero-float{
  position:absolute;left:-22px;bottom:-22px;
  display:flex;align-items:center;gap:12px;
  background:#fff;border:1px solid var(--line);border-radius:14px;
  padding:14px 18px;box-shadow:var(--shadow-3);
}
.hero-float .float-icon{
  width:38px;height:38px;border-radius:10px;background:var(--primary-050);
  display:grid;place-items:center;color:var(--primary-600);flex:0 0 38px;
}
.hero-float strong{display:block;font-size:15px;font-weight:700;line-height:1.4;}
.hero-float span{font-size:12px;color:var(--text-muted);}

/* ---------- 时间线 ---------- */
.timeline{position:relative;margin-top:8px;}
.timeline::before{
  content:"";position:absolute;top:6px;bottom:6px;left:50%;
  width:2px;background:var(--line);transform:translateX(-1px);
}
.tl-item{position:relative;width:50%;padding:0 56px 40px 0;}
.tl-item:nth-child(even){margin-left:50%;padding:0 0 40px 56px;}
.tl-item:last-child{padding-bottom:0;}
.tl-dot{
  position:absolute;top:0;right:-16px;
  width:32px;height:32px;border-radius:50%;
  background:var(--primary-600);color:#fff;
  display:grid;place-items:center;
  font-size:13px;font-weight:700;letter-spacing:.5px;
  box-shadow:0 0 0 5px #fff;
}
.tl-item:nth-child(even) .tl-dot{right:auto;left:-16px;}
.tl-card{
  background:#fff;border:1px solid var(--line);border-radius:16px;
  padding:24px 26px;box-shadow:var(--shadow-1);
  transition:transform .18s ease-out,box-shadow .18s ease-out;
}
.tl-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-2);}
.tl-card h3{font-size:19px;margin-bottom:10px;}
.tl-card p{font-size:15px;line-height:1.8;}
.tl-note{
  display:inline-flex;align-items:center;gap:8px;margin-top:14px;
  font-size:13px;font-weight:500;color:var(--primary-700);
  background:var(--primary-050);border-radius:8px;padding:6px 12px;
}

/* ---------- 卡片网格 ---------- */
.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;}
.grid-4{display:grid;grid-template-columns:repeat(4,1fr);gap:24px;}

.card{
  background:#fff;border:1px solid var(--line);border-radius:16px;
  overflow:hidden;box-shadow:var(--shadow-1);
  display:flex;flex-direction:column;
  transition:transform .18s ease-out,box-shadow .18s ease-out;
}
.card:hover{transform:translateY(-2px);box-shadow:var(--shadow-2);}
.card img{width:100%;aspect-ratio:16/9;object-fit:cover;}
.card-body{padding:24px;display:flex;flex-direction:column;gap:12px;flex:1;}
.card-body h3{font-size:18px;}
.card-body p{font-size:14px;line-height:1.75;color:var(--text-body);}
.card-foot{
  margin-top:auto;display:flex;align-items:center;justify-content:space-between;
  gap:12px;padding-top:8px;
}

.feature-card{
  position:relative;overflow:hidden;
  background:#fff;border:1px solid var(--line);border-radius:16px;
  padding:26px 24px;display:flex;gap:16px;
  transition:transform .18s ease-out,box-shadow .18s ease-out;
}
.feature-card::before{content:"";position:absolute;top:0;left:0;right:0;height:3px;background:var(--primary-600);}
.feature-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-2);}
.feature-icon{
  width:40px;height:40px;border-radius:10px;background:var(--primary-050);
  display:grid;place-items:center;color:var(--primary-600);flex:0 0 40px;
}
.feature-card h3{font-size:17px;margin-bottom:8px;}
.feature-card p{font-size:14px;line-height:1.75;}

/* ---------- 列表行 ---------- */
.list-panel{background:#fff;border:1px solid var(--line);border-radius:16px;overflow:hidden;box-shadow:var(--shadow-1);}
.list-row{
  display:flex;align-items:center;gap:16px;
  min-height:56px;padding:16px 22px;border-bottom:1px solid var(--line);
  transition:background-color .16s ease-out;
}
.list-row:last-child{border-bottom:none;}
.list-row:hover{background:var(--primary-050);}
.list-row .idx{
  width:28px;height:28px;border-radius:9px;background:var(--primary-100);
  color:var(--primary-700);font-size:13px;font-weight:700;
  display:grid;place-items:center;flex:0 0 28px;
}
.list-row .row-main{flex:1;min-width:0;}
.list-row .row-title{display:block;font-size:15px;font-weight:600;color:var(--text);}
.list-row .row-desc{display:block;font-size:13px;color:var(--text-muted);margin-top:2px;}

/* ---------- FAQ ---------- */
.faq-list{max-width:900px;}
.faq-item{
  background:#fff;border:1px solid var(--line);border-radius:12px;
  margin-bottom:12px;overflow:hidden;
  transition:border-color .18s ease-out,background-color .18s ease-out;
}
.faq-item:hover{border-color:var(--primary-100);background:var(--primary-050);}
.faq-item summary{
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:20px;font-size:16px;font-weight:600;color:var(--text);
  cursor:pointer;list-style:none;
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item[open]{background:#fff;border-color:var(--primary-100);}
.faq-item[open] summary{color:var(--primary-700);}
.faq-icon{position:relative;width:16px;height:16px;flex:0 0 16px;}
.faq-icon::before,.faq-icon::after{content:"";position:absolute;background:var(--primary-600);border-radius:2px;}
.faq-icon::before{left:0;top:7px;width:16px;height:2px;}
.faq-icon::after{left:7px;top:0;width:2px;height:16px;transition:transform .2s ease-out;}
.faq-item[open] .faq-icon::after{transform:scaleY(0);}
.faq-body{padding:0 20px 20px;font-size:15px;line-height:1.78;color:var(--text-body);}

/* ---------- CTA 横幅 ---------- */
.cta-band{
  background:var(--primary-700);color:#fff;border-radius:16px;
  padding:40px 44px;display:flex;align-items:center;justify-content:space-between;gap:32px;
  position:relative;overflow:hidden;
}
.cta-band::after{
  content:"";position:absolute;right:-40px;top:-40px;width:220px;height:220px;
  border-radius:50%;background:linear-gradient(135deg,rgba(245,165,36,.28),rgba(31,107,224,0));
  pointer-events:none;
}
.cta-band h2{color:#fff;font-size:clamp(22px,2.6vw,28px);margin-bottom:8px;}
.cta-band p{color:rgba(255,255,255,.78);font-size:15px;max-width:640px;}
.cta-actions{display:flex;gap:14px;flex:0 0 auto;flex-wrap:wrap;}

/* ---------- 页脚 ---------- */
.site-footer{background:#14213A;color:#fff;padding:64px 0 0;}
.footer-grid{
  display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:40px;
  padding-bottom:40px;border-bottom:1px solid rgba(255,255,255,.12);
}
.site-footer .logo-main{color:#fff;}
.site-footer .logo-sub{color:var(--accent-500);}
.footer-brand p{color:rgba(255,255,255,.68);font-size:14px;line-height:1.8;margin-top:16px;max-width:320px;}
.footer-contact{font-size:13px;color:var(--accent-500);margin-top:14px;}
.footer-title{font-size:15px;font-weight:600;color:#fff;margin-bottom:16px;}
.footer-links{display:flex;flex-direction:column;gap:12px;}
.footer-links a{font-size:14px;color:rgba(255,255,255,.7);transition:color .18s ease-out;}
.footer-links a:hover{color:var(--accent-500);}
.footer-bottom{
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:22px 0;font-size:13px;color:rgba(255,255,255,.55);flex-wrap:wrap;
}

/* ---------- 移动端抽屉 ---------- */
.drawer{
  position:fixed;top:0;right:0;z-index:80;
  width:min(86vw,380px);height:100%;
  background:#fff;padding:20px;overflow-y:auto;
  transform:translateX(100%);
  transition:transform .22s ease-out;
  box-shadow:var(--shadow-3);
}
.drawer.open{transform:translateX(0);}
.drawer-mask{
  position:fixed;inset:0;z-index:70;background:rgba(20,33,58,.45);
  opacity:0;visibility:hidden;transition:opacity .2s ease-out,visibility .2s;
}
.drawer-mask.show{opacity:1;visibility:visible;}
.drawer-head{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-bottom:22px;}
.drawer-close{
  width:36px;height:36px;border-radius:10px;border:1px solid var(--border);
  display:grid;place-items:center;font-size:20px;line-height:1;color:var(--text-body);
}
.drawer-nav{display:flex;flex-direction:column;gap:4px;}
.drawer-link{
  padding:13px 14px;border-radius:10px;font-size:15px;font-weight:500;color:var(--text-body);
  transition:background-color .16s ease-out,color .16s ease-out;
}
.drawer-link:hover{background:var(--primary-050);color:var(--primary-600);}
.drawer-link.active{background:var(--primary-100);color:var(--primary-700);font-weight:600;}
.drawer-sub{margin-top:22px;padding-top:20px;border-top:1px solid var(--line);}
.drawer-sub-title{font-size:13px;font-weight:600;color:var(--text-muted);margin-bottom:12px;}
.drawer-tags{display:flex;flex-wrap:wrap;gap:10px;}
.drawer-tags a{
  font-size:13px;padding:7px 12px;border-radius:999px;
  background:var(--primary-050);color:var(--primary-700);
  transition:background-color .16s ease-out;
}
.drawer-tags a:hover{background:var(--primary-100);}
.drawer-cta{margin-top:26px;}

/* ---------- 响应式 ---------- */
@media (max-width:1199px){
  .mega-panel{width:640px;}
  .hero-grid{gap:40px;}
}
@media (max-width:991px){
  .nav-main,.header-actions .btn{display:none;}
  .nav-toggle{display:flex;}
  .header-inner{height:60px;}
  .hero-grid{grid-template-columns:1fr;gap:36px;}
  .page-hero{padding:32px 0 56px;}
  .hero-float{left:16px;bottom:-18px;}
  .grid-3,.grid-4{grid-template-columns:repeat(2,1fr);}
  .timeline::before{left:16px;transform:none;}
  .tl-item,.tl-item:nth-child(even){width:100%;margin-left:0;padding:0 0 28px 56px;}
  .tl-dot,.tl-item:nth-child(even) .tl-dot{left:0;right:auto;top:0;}
  .section{padding:56px 0;}
  .section-head{flex-direction:column;align-items:flex-start;gap:18px;}
  .cta-band{flex-direction:column;align-items:flex-start;padding:32px 28px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
}
@media (max-width:767px){
  body{font-size:15px;}
  .grid-3,.grid-4{grid-template-columns:1fr;}
  .hero-actions .btn{width:100%;}
  .hero-tags{gap:14px;}
  .hero-float{position:static;margin-top:16px;left:auto;bottom:auto;}
  .section{padding:48px 0;}
  .cta-actions{width:100%;}
  .cta-actions .btn{width:100%;}
  .footer-bottom{flex-direction:column;align-items:flex-start;gap:8px;}
}
@media (max-width:480px){
  .container{padding:0 16px;}
  .card-body,.feature-card{padding:20px;}
  .tl-card{padding:20px;}
  .logo-main{font-size:16px;}
  .site-footer{padding-top:48px;}
}

@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{transition-duration:.01ms !important;animation-duration:.01ms !important;}
  .card:hover,.feature-card:hover,.tl-card:hover,.btn:hover{transform:none;}
}