/* roulang page: index */
:root{
  --c-primary:#1D63ED;
  --c-primary-deep:#0F47BF;
  --c-primary-soft:#E8F0FE;
  --c-accent:#FF6B2C;
  --c-accent-soft:#FFF2EA;
  --c-ink:#0F172A;
  --c-text:#4A5468;
  --c-muted:#8A94A6;
  --c-bg:#F5F7FB;
  --c-surface:#FFFFFF;
  --c-border:#E5E9F2;
  --c-success:#12A150;
  --r-card:16px;
  --r-img:12px;
  --r-btn:10px;
  --r-pill:999px;
  --sh-1:0 1px 2px rgba(15,23,42,.05),0 8px 24px rgba(15,23,42,.06);
  --sh-2:0 12px 32px rgba(29,99,237,.16);
  --sp-1:4px;--sp-2:8px;--sp-3:12px;--sp-4:16px;--sp-5:24px;--sp-6:32px;--sp-7:48px;--sp-8:64px;--sp-9:96px;
  --ease:200ms ease-out;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:16px;
  line-height:1.8;
  color:var(--c-text);
  background:var(--c-bg);
  font-variant-numeric:tabular-nums;
}
img{max-width:100%;display:block;border-radius:var(--r-img);}
a{color:var(--c-primary);text-decoration:none;transition:color var(--ease),opacity var(--ease);}
a:hover{color:var(--c-primary-deep);}
a:focus-visible,button:focus-visible,input:focus-visible,.nav-link:focus-visible{outline:2px solid var(--c-primary);outline-offset:2px;border-radius:6px;}
h1,h2,h3,h4{margin:0;color:var(--c-ink);font-weight:700;line-height:1.3;}
h1{font-size:48px;line-height:1.2;}
h2{font-size:32px;position:relative;padding-left:18px;}
h2::before{content:"";position:absolute;left:0;top:8px;bottom:8px;width:4px;border-radius:2px;background:var(--c-primary);}
h3{font-size:21px;font-weight:600;line-height:1.4;}
p{margin:0 0 16px;}
ul{margin:0;padding:0;list-style:none;}
button{font-family:inherit;cursor:pointer;}
input{font-family:inherit;}

.grid-container{max-width:1240px;padding-left:24px;padding-right:24px;margin-left:auto;margin-right:auto;}
.grid-x{display:flex;flex-flow:row wrap;margin-left:-12px;margin-right:-12px;}
.grid-x>.cell{padding-left:12px;padding-right:12px;flex:0 0 auto;width:100%;}
.grid-x>.small-12{width:100%;}
@media screen and (min-width:640px){
  .grid-x>.medium-6{width:50%;}
  .grid-x>.medium-12{width:100%;}
}
@media screen and (min-width:1024px){
  .grid-x>.large-3{width:25%;}
  .grid-x>.large-4{width:33.3333%;}
  .grid-x>.large-5{width:41.6667%;}
  .grid-x>.large-6{width:50%;}
  .grid-x>.large-7{width:58.3333%;}
  .grid-x>.large-8{width:66.6667%;}
  .grid-x>.large-12{width:100%;}
}

/* ===== 按钮体系 ===== */
.btn,.button{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 24px;border-radius:var(--r-btn);
  font-size:15px;font-weight:600;line-height:1;border:1px solid transparent;
  transition:background-color var(--ease),color var(--ease),transform var(--ease),box-shadow var(--ease),border-color var(--ease);
  cursor:pointer;
}
.btn-primary,.button{background:var(--c-primary);color:#fff;box-shadow:0 6px 18px rgba(29,99,237,.22);}
.btn-primary:hover,.button:hover{background:var(--c-primary-deep);color:#fff;transform:translateY(-2px);box-shadow:0 10px 26px rgba(29,99,237,.3);}
.btn-primary:active,.button:active{transform:translateY(0);box-shadow:0 3px 10px rgba(29,99,237,.24);}
.btn-accent{background:var(--c-accent);color:#fff;box-shadow:0 6px 18px rgba(255,107,44,.26);}
.btn-accent:hover{background:#E85A1B;color:#fff;transform:translateY(-2px);}
.btn-outline{background:#fff;border-color:var(--c-border);color:var(--c-primary);}
.btn-outline:hover{background:var(--c-primary-soft);border-color:#C9DBFB;color:var(--c-primary-deep);transform:translateY(-2px);}
.btn-ghost-light{background:rgba(255,255,255,.12);border-color:rgba(255,255,255,.5);color:#fff;}
.btn-ghost-light:hover{background:#fff;color:var(--c-primary-deep);}
.btn-sm{height:40px;padding:0 18px;font-size:14px;}
.btn-block{width:100%;}

/* ===== 标签 / 徽章 ===== */
.badge{display:inline-flex;align-items:center;height:26px;padding:0 12px;border-radius:var(--r-pill);
  font-size:12.5px;font-weight:600;background:var(--c-primary-soft);color:var(--c-primary-deep);letter-spacing:.2px;}
.badge-accent{background:var(--c-accent-soft);color:#D9500F;}
.badge-soft{background:#F1F4FA;color:var(--c-muted);}

/* ===== 公告条 ===== */
.notice-bar{background:var(--c-ink);color:#D8DEEA;font-size:13.5px;height:40px;display:flex;align-items:center;}
.notice-bar .grid-container{display:flex;align-items:center;justify-content:space-between;gap:16px;width:100%;}
.notice-bar span i{margin-right:8px;color:var(--c-accent);}
.notice-close{background:transparent;border:0;color:#8A94A6;font-size:16px;line-height:1;padding:4px 6px;}
.notice-close:hover{color:#fff;}
.notice-bar.is-hidden{display:none;}

/* ===== 头部导航 ===== */
.site-header{position:sticky;top:0;z-index:60;background:#fff;border-bottom:1px solid var(--c-border);transition:box-shadow var(--ease);}
.site-header.is-scrolled{box-shadow:0 8px 24px rgba(15,23,42,.06);}
.header-inner{display:flex;align-items:center;justify-content:space-between;height:72px;gap:24px;}
.brand{display:flex;align-items:center;gap:10px;font-size:18px;font-weight:700;color:var(--c-ink);white-space:nowrap;}
.brand:hover{color:var(--c-primary);}
.brand-mark{width:38px;height:38px;border-radius:11px;background:var(--c-primary);color:#fff;display:flex;align-items:center;justify-content:center;font-size:17px;font-weight:700;flex:0 0 auto;box-shadow:0 6px 16px rgba(29,99,237,.28);}
.brand-text{display:flex;flex-direction:column;line-height:1.15;}
.brand-text b{font-size:16.5px;letter-spacing:.2px;}
.brand-text em{font-style:normal;font-size:11.5px;color:var(--c-muted);letter-spacing:1.6px;}
.nav-wrap{display:flex;align-items:center;gap:24px;margin-left:auto;}
.nav-list{display:flex;align-items:center;gap:6px;}
.nav-link{display:block;padding:10px 14px;border-radius:var(--r-pill);font-size:15px;font-weight:500;color:var(--c-text);position:relative;}
.nav-link:hover{color:var(--c-primary);background:var(--c-primary-soft);}
.nav-link.is-active{color:var(--c-primary-deep);font-weight:600;background:var(--c-primary-soft);}
.nav-toggle{display:none;width:44px;height:44px;border:1px solid var(--c-border);border-radius:12px;background:#fff;align-items:center;justify-content:center;color:var(--c-ink);font-size:18px;}

/* ===== Hero ===== */
.hero{position:relative;background:#fff;border-bottom:1px solid var(--c-border);overflow:hidden;}
.hero::before{content:"";position:absolute;inset:0;
  background-image:linear-gradient(rgba(29,99,237,.05) 1px,transparent 1px),linear-gradient(90deg,rgba(29,99,237,.05) 1px,transparent 1px);
  background-size:56px 56px;pointer-events:none;}
.hero .grid-container{position:relative;z-index:2;}
.hero-inner{display:flex;flex-wrap:wrap;align-items:center;gap:48px;padding:72px 0 84px;}
.hero-copy{flex:1 1 420px;min-width:300px;}
.hero-eyebrow{display:inline-flex;align-items:center;gap:8px;height:32px;padding:0 14px;border-radius:var(--r-pill);
  background:var(--c-primary-soft);color:var(--c-primary-deep);font-size:13.5px;font-weight:600;margin-bottom:20px;}
.hero-copy h1{font-size:46px;margin-bottom:18px;letter-spacing:-.4px;}
.hero-copy h1 span{color:var(--c-primary);}
.hero-sub{font-size:17px;color:var(--c-text);max-width:520px;margin-bottom:26px;}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;}
.hero-note{margin-top:18px;font-size:13.5px;color:var(--c-muted);display:flex;align-items:center;gap:8px;}
.hero-note i{color:var(--c-success);}

.hero-side{flex:1 1 420px;min-width:300px;position:relative;}
.hero-visual{border-radius:20px;overflow:hidden;border:1px solid var(--c-border);box-shadow:var(--sh-1);background:#fff;}
.hero-visual img{width:100%;height:340px;object-fit:cover;border-radius:0;}
.hero-float{position:absolute;background:#fff;border:1px solid var(--c-border);border-radius:14px;padding:12px 16px;box-shadow:0 12px 30px rgba(15,23,42,.12);}
.hero-float b{display:block;font-size:20px;color:var(--c-primary-deep);line-height:1.2;}
.hero-float span{display:block;font-size:12.5px;color:var(--c-muted);}
.float-a{top:-18px;left:-12px;}
.float-b{bottom:70px;right:-14px;}
.float-c{bottom:-18px;left:34px;}

.login-card{background:#fff;border:1px solid var(--c-border);border-radius:20px;padding:24px;box-shadow:var(--sh-1);margin-top:20px;}
.login-card h2{font-size:19px;padding-left:0;margin-bottom:6px;}
.login-card h2::before{display:none;}
.login-card .login-tip{font-size:13.5px;color:var(--c-muted);margin:0 0 16px;}
.login-field{margin-bottom:14px;}
.login-field label{display:block;font-size:13.5px;font-weight:600;color:var(--c-ink);margin-bottom:8px;}
.login-field input{width:100%;height:48px;border:1px solid var(--c-border);border-radius:var(--r-btn);
  padding:0 14px;font-size:15px;color:var(--c-ink);background:#fff;transition:border-color var(--ease),box-shadow var(--ease);}
.login-field input::placeholder{color:#AEB6C4;}
.login-field input:focus{outline:none;border-color:var(--c-primary);box-shadow:0 0 0 3px rgba(29,99,237,.14);}
.login-safe{display:flex;align-items:center;gap:8px;font-size:12.5px;color:var(--c-muted);margin-top:12px;}
.login-safe i{color:var(--c-success);}

/* ===== 通用板块 ===== */
.section{padding:96px 0;}
.section-tight{padding:72px 0;}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:40px;flex-wrap:wrap;}
.section-head p{margin:10px 0 0;font-size:15.5px;color:var(--c-text);max-width:680px;}
.section-more{font-size:14.5px;font-weight:600;display:inline-flex;align-items:center;gap:6px;white-space:nowrap;}
.section-more i{font-size:12px;}
.bg-white{background:#fff;}
.bg-soft{background:var(--c-primary-soft);}

/* ===== 服务 1大3小 ===== */
.feature-grid{display:flex;flex-wrap:wrap;gap:24px;}
.feature-main{flex:1 1 520px;min-width:300px;background:#fff;border:1px solid var(--c-border);border-radius:var(--r-card);
  overflow:hidden;box-shadow:var(--sh-1);transition:transform var(--ease),box-shadow var(--ease);position:relative;}
.feature-main:hover{transform:translateY(-4px);box-shadow:var(--sh-2);}
.feature-main .cover{position:relative;overflow:hidden;}
.feature-main .cover img{width:100%;height:270px;object-fit:cover;border-radius:0;transition:transform var(--ease);}
.feature-main:hover .cover img{transform:scale(1.03);}
.corner-badge{position:absolute;top:16px;left:16px;background:var(--c-accent);color:#fff;font-size:12.5px;font-weight:600;
  height:28px;display:inline-flex;align-items:center;padding:0 12px;border-radius:var(--r-pill);}
.feature-main .body{padding:26px 24px 24px;}
.feature-main .body h3{font-size:23px;margin-bottom:12px;}
.feature-main .body p{font-size:15px;margin-bottom:18px;}
.tag-row{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:20px;}
.feature-side{flex:1 1 340px;min-width:280px;display:flex;flex-direction:column;gap:24px;}
.mini-card{display:flex;gap:16px;align-items:flex-start;background:#fff;border:1px solid var(--c-border);
  border-radius:var(--r-card);padding:20px;box-shadow:var(--sh-1);transition:transform var(--ease),box-shadow var(--ease);}
.mini-card:hover{transform:translateY(-4px);box-shadow:var(--sh-2);}
.mini-icon{width:48px;height:48px;border-radius:14px;background:var(--c-primary-soft);color:var(--c-primary);
  display:flex;align-items:center;justify-content:center;font-size:20px;flex:0 0 auto;}
.mini-card h3{font-size:18px;margin-bottom:6px;}
.mini-card p{font-size:14px;margin:0 0 10px;color:var(--c-text);}
.mini-link{font-size:13.5px;font-weight:600;}

/* ===== 资讯列表 ===== */
.news-main{background:#fff;border:1px solid var(--c-border);border-radius:var(--r-card);overflow:hidden;box-shadow:var(--sh-1);
  transition:transform var(--ease),box-shadow var(--ease);height:100%;}
.news-main:hover{transform:translateY(-4px);box-shadow:var(--sh-2);}
.news-main .cover{overflow:hidden;}
.news-main .cover img{width:100%;height:270px;object-fit:cover;border-radius:0;transition:transform var(--ease);}
.news-main:hover .cover img{transform:scale(1.03);}
.news-main .body{padding:24px;}
.news-main .body h3{font-size:21px;margin:14px 0 10px;}
.news-main .body p{font-size:14.5px;color:var(--c-text);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;margin-bottom:14px;}
.meta-row{display:flex;align-items:center;gap:14px;font-size:13px;color:var(--c-muted);}
.meta-row i{margin-right:5px;}
.news-list{background:#fff;border:1px solid var(--c-border);border-radius:var(--r-card);box-shadow:var(--sh-1);height:100%;display:flex;flex-direction:column;}
.news-item{display:block;padding:18px 22px;border-bottom:1px solid var(--c-border);transition:background-color var(--ease);}
.news-item:last-child{border-bottom:0;}
.news-item:hover{background:#F9FBFF;}
.news-item h3{font-size:16px;font-weight:600;margin-bottom:8px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;color:var(--c-ink);}
.news-item:hover h3{color:var(--c-primary);}
.news-item p{font-size:13.5px;color:var(--c-text);margin:0 0 10px;display:-webkit-box;-webkit-line-clamp:1;-webkit-box-orient:vertical;overflow:hidden;}
.news-empty{padding:56px 24px;text-align:center;background:#fff;border:1px dashed var(--c-border);border-radius:var(--r-card);}
.news-empty i{font-size:34px;color:rgba(29,99,237,.3);display:block;margin-bottom:14px;}
.news-empty p{font-size:14px;color:var(--c-muted);margin-bottom:16px;}

/* ===== 评价轮播 ===== */
.review-card{background:#fff;border:1px solid var(--c-border);border-radius:var(--r-card);padding:24px;box-shadow:var(--sh-1);height:100%;}
.review-top{display:flex;align-items:center;gap:12px;margin-bottom:14px;}
.review-top img{width:48px;height:48px;border-radius:50%;object-fit:cover;}
.review-top b{display:block;font-size:15px;color:var(--c-ink);}
.review-top span{font-size:12.5px;color:var(--c-muted);}
.stars{color:var(--c-accent);font-size:13px;margin-bottom:10px;letter-spacing:2px;}
.review-card p{font-size:14.5px;color:var(--c-text);margin:0 0 14px;display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden;}
.review-src{font-size:12.5px;color:var(--c-muted);display:inline-flex;align-items:center;gap:6px;}
.review-src i{color:var(--c-primary);}

/* Orbit 覆写 */
.orbit{margin:0;}
.orbit-wrapper{background:transparent;}
.orbit-container{list-style:none;margin:0;padding:0;}
.orbit-slide{padding:0 4px;}
.orbit-previous,.orbit-next{
  width:44px;height:44px;border-radius:50%;background:#fff;border:1px solid var(--c-border);color:var(--c-primary);
  display:flex;align-items:center;justify-content:center;box-shadow:var(--sh-1);top:50%;transform:translateY(-50%);
  transition:background-color var(--ease),color var(--ease);
}
.orbit-previous:hover,.orbit-next:hover{background:var(--c-primary);color:#fff;border-color:var(--c-primary);}
.orbit-previous{left:-8px;}
.orbit-next{right:-8px;}
.orbit-bullets{margin-top:26px;text-align:center;}
.orbit-bullets button{width:9px;height:9px;border-radius:50%;background:#C8D3E6;margin:0 5px;transition:background-color var(--ease),transform var(--ease);}
.orbit-bullets button:hover{background:#9DB4D8;}
.orbit-bullets button.is-active{background:var(--c-primary);transform:scale(1.25);}

/* ===== 保障条 ===== */
.guard-bar{background:var(--c-ink);color:#fff;padding:36px 0;}
.guard-grid{display:flex;flex-wrap:wrap;gap:24px;}
.guard-item{flex:1 1 200px;display:flex;align-items:center;gap:14px;}
.guard-item i{width:44px;height:44px;border-radius:12px;background:rgba(255,255,255,.1);color:#7FB0FF;
  display:flex;align-items:center;justify-content:center;font-size:18px;flex:0 0 auto;}
.guard-item b{display:block;font-size:15.5px;color:#fff;}
.guard-item span{font-size:13px;color:#9AA5B8;}

/* ===== CTA ===== */
.cta-band{background:var(--c-primary);border-radius:20px;padding:48px;color:#fff;position:relative;overflow:hidden;}
.cta-band::after{content:"";position:absolute;inset:0;
  background-image:repeating-linear-gradient(115deg,rgba(255,255,255,.06) 0 2px,transparent 2px 16px);pointer-events:none;}
.cta-inner{position:relative;z-index:2;display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:28px;}
.cta-inner h2{color:#fff;font-size:30px;padding-left:0;}
.cta-inner h2::before{display:none;}
.cta-inner p{color:rgba(255,255,255,.86);font-size:15.5px;margin:10px 0 0;max-width:640px;}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px;}

/* ===== FAQ ===== */
.accordion{border:0;background:transparent;margin:0;}
.accordion-item{background:#fff;border:1px solid var(--c-border);border-radius:14px;margin-bottom:12px;overflow:hidden;
  transition:box-shadow var(--ease),border-color var(--ease);}
.accordion-item:hover{border-color:#CFDCF4;box-shadow:var(--sh-1);}
.accordion-title{position:relative;display:block;padding:18px 60px 18px 22px;font-size:16px;font-weight:600;color:var(--c-ink);
  background:transparent;border:0;line-height:1.6;}
.accordion-title:hover{background:#F9FBFF;color:var(--c-primary-deep);}
.accordion-content{padding:0 22px 20px;border:0;font-size:15px;line-height:1.8;color:var(--c-text);background:transparent;}
.accordion-content p:last-child{margin-bottom:0;}

/* ===== 页脚 ===== */
.site-footer{background:var(--c-ink);color:#9AA5B8;padding:64px 0 0;margin-top:0;}
.footer-grid{display:flex;flex-wrap:wrap;gap:40px;padding-bottom:48px;}
.footer-col{flex:1 1 220px;min-width:200px;}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:16px;color:#fff;font-size:17px;font-weight:700;}
.footer-brand .brand-mark{box-shadow:none;}
.footer-col h4{font-size:15px;color:#fff;margin-bottom:18px;font-weight:600;}
.footer-col p{font-size:14px;line-height:1.8;color:#9AA5B8;margin:0;}
.footer-links li{margin-bottom:11px;}
.footer-links a{font-size:14px;color:#9AA5B8;}
.footer-links a:hover{color:#7FB0FF;}
.footer-contact li{display:flex;gap:10px;font-size:14px;margin-bottom:12px;color:#9AA5B8;}
.footer-contact i{color:#7FB0FF;margin-top:5px;}
.footer-bottom{border-top:1px solid rgba(255,255,255,.08);padding:20px 0;display:flex;flex-wrap:wrap;gap:12px;
  align-items:center;justify-content:space-between;font-size:13px;color:#7C8698;}

/* ===== 响应式 ===== */
@media screen and (max-width:1023px){
  h1{font-size:34px;}
  .hero-copy h1{font-size:36px;}
  h2{font-size:26px;}
  .section{padding:72px 0;}
  .nav-toggle{display:flex;}
  .nav-wrap{position:absolute;top:72px;left:0;right:0;background:#fff;border-bottom:1px solid var(--c-border);
    box-shadow:0 16px 32px rgba(15,23,42,.1);padding:16px 24px 24px;display:none;flex-direction:column;align-items:stretch;gap:8px;
    max-height:calc(100vh - 72px);overflow-y:auto;}
  .nav-wrap.is-open{display:flex;}
  .nav-list{flex-direction:column;align-items:stretch;gap:4px;}
  .nav-link{padding:13px 16px;border-radius:12px;font-size:15.5px;}
  .nav-wrap .btn{width:100%;margin-top:8px;}
  .hero-inner{padding:48px 0 64px;gap:36px;}
  .hero-visual img{height:280px;}
  .float-a{top:-12px;left:0;}
  .float-b{bottom:40px;right:0;}
  .cta-band{padding:36px 28px;}
  .orbit-previous,.orbit-next{display:none;}
}
@media screen and (max-width:639px){
  .grid-container{padding-left:16px;padding-right:16px;}
  .grid-x{margin-left:-8px;margin-right:-8px;}
  .grid-x>.cell{padding-left:8px;padding-right:8px;}
  h1{font-size:30px;}
  .hero-copy h1{font-size:31px;}
  h2{font-size:23px;padding-left:14px;}
  .section{padding:56px 0;}
  .section-tight{padding:48px 0;}
  .section-head{margin-bottom:28px;}
  .brand-text em{display:none;}
  .hero-inner{padding:36px 0 48px;gap:28px;}
  .hero-visual img{height:230px;}
  .hero-copy .hero-sub{font-size:15.5px;}
  .hero-actions .btn{width:100%;}
  .float-a,.float-b,.float-c{position:static;margin-top:12px;}
  .hero-float{display:inline-block;margin-right:8px;}
  .feature-main .cover img,.news-main .cover img{height:200px;}
  .cta-band{border-radius:16px;padding:28px 20px;}
  .cta-inner h2{font-size:23px;}
  .cta-actions .btn{width:100%;}
  .footer-bottom{flex-direction:column;align-items:flex-start;}
}

/* roulang page: article */
:root{
  --c-primary:#1D63ED;
  --c-primary-deep:#0F47BF;
  --c-primary-soft:#E8F0FE;
  --c-accent:#FF6B2C;
  --c-accent-soft:#FFF2EA;
  --c-ink:#0F172A;
  --c-text:#4A5468;
  --c-muted:#8A94A6;
  --c-bg:#F5F7FB;
  --c-surface:#FFFFFF;
  --c-border:#E5E9F2;
  --c-success:#12A150;
  --sh-1:0 1px 2px rgba(15,23,42,.05),0 8px 24px rgba(15,23,42,.06);
  --sh-2:0 12px 32px rgba(29,99,237,.16);
  --r-card:16px;
  --r-img:12px;
  --r-btn:10px;
  --r-pill:999px;
  --w:1240px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  font-family:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:16px;
  line-height:1.8;
  color:var(--c-text);
  background:var(--c-bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;height:auto;display:block;border-style:none}
a{color:var(--c-primary);text-decoration:none;transition:color .18s ease,background-color .18s ease,border-color .18s ease}
a:hover{color:var(--c-primary-deep)}
h1,h2,h3,h4{color:var(--c-ink);margin:0;font-weight:700;line-height:1.3}
p{margin:0 0 20px}
ul,ol{margin:0;padding:0}
button{font-family:inherit}
input,button,select,textarea{font-family:inherit;font-size:100%}
:focus-visible{outline:2px solid var(--c-primary);outline-offset:2px}
.grid-container{max-width:var(--w);margin:0 auto;padding:0 24px}
@media (max-width:640px){.grid-container{padding:0 16px}}

/* ---------- 顶部导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:60;background:var(--c-surface);
  border-bottom:1px solid var(--c-border);transition:box-shadow .2s ease;
}
.site-header.is-scrolled{box-shadow:0 8px 24px rgba(15,23,42,.06)}
.header-inner{display:flex;align-items:center;justify-content:space-between;gap:24px;height:72px;position:relative}
.brand{display:flex;align-items:center;gap:10px;flex:0 0 auto}
.brand-mark{
  width:38px;height:38px;border-radius:10px;background:var(--c-primary);color:#fff;
  display:flex;align-items:center;justify-content:center;font-weight:700;font-size:18px;letter-spacing:0;
}
.brand-text b{display:block;font-size:17px;color:var(--c-ink);line-height:1.25}
.brand-text em{display:block;font-style:normal;font-size:10px;letter-spacing:.16em;color:var(--c-muted)}
.nav-wrap{display:flex;align-items:center;gap:28px}
.nav-list{display:flex;align-items:center;gap:26px;list-style:none;margin:0;padding:0}
.nav-link{position:relative;display:inline-block;padding:6px 0;font-size:15px;font-weight:500;color:var(--c-ink)}
.nav-link::after{
  content:"";position:absolute;left:0;right:0;bottom:0;height:2px;border-radius:2px;
  background:var(--c-primary);transform:scaleX(0);transform-origin:left;transition:transform .2s ease;
}
.nav-link:hover{color:var(--c-primary)}
.nav-link:hover::after,.nav-link.is-active::after{transform:scaleX(1)}
.nav-link.is-active{color:var(--c-primary)}
.nav-toggle{
  display:none;width:42px;height:42px;border:1px solid var(--c-border);background:#fff;border-radius:10px;
  color:var(--c-ink);font-size:18px;cursor:pointer;align-items:center;justify-content:center;
}
.nav-toggle:hover{background:var(--c-primary-soft);color:var(--c-primary)}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 24px;border-radius:var(--r-btn);border:1px solid transparent;
  font-size:15px;font-weight:600;cursor:pointer;text-align:center;
  transition:background-color .18s ease,color .18s ease,transform .18s ease,box-shadow .18s ease,border-color .18s ease;
}
.btn-sm{height:40px;padding:0 18px;font-size:14px}
.btn-primary{background:var(--c-primary);color:#fff}
.btn-primary:hover{background:var(--c-primary-deep);color:#fff;transform:translateY(-1px);box-shadow:0 8px 20px rgba(29,99,237,.24)}
.btn-primary:active{transform:translateY(1px);box-shadow:none}
.btn-accent{background:var(--c-accent);color:#fff}
.btn-accent:hover{background:#e95a1c;color:#fff;transform:translateY(-1px)}
.btn-ghost{background:#fff;border-color:var(--c-border);color:var(--c-primary)}
.btn-ghost:hover{background:var(--c-primary-soft);border-color:var(--c-primary);color:var(--c-primary-deep)}

/* ---------- 文章头部 ---------- */
.article-hero{background:var(--c-surface);border-bottom:1px solid var(--c-border);padding:26px 0 44px}
.crumb-list{display:flex;flex-wrap:wrap;align-items:center;gap:8px;list-style:none;margin:0 0 22px;padding:0;font-size:14px;color:var(--c-muted)}
.crumb-list li{display:flex;align-items:center;gap:8px}
.crumb-list li+li::before{content:"/";color:var(--c-border)}
.crumb-list a{color:var(--c-muted)}
.crumb-list a:hover{color:var(--c-primary)}
.crumb-list .current{color:var(--c-ink);max-width:520px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.page-h1{font-size:46px;line-height:1.22;letter-spacing:-.5px;margin-bottom:20px}
.meta-row{display:flex;flex-wrap:wrap;align-items:center;gap:12px 20px;font-size:14px;color:var(--c-muted)}
.badge{
  display:inline-flex;align-items:center;height:26px;padding:0 12px;border-radius:var(--r-pill);
  background:var(--c-primary-soft);color:var(--c-primary);font-size:13px;font-weight:600;
}
.meta-item{display:inline-flex;align-items:center;gap:6px}
.meta-item i{font-size:14px;color:var(--c-muted)}

/* ---------- 主体布局 ---------- */
main{display:block}
.section{padding:56px 0}
.article-layout{display:grid;grid-template-columns:minmax(0,1fr) 320px;gap:36px;align-items:start}

/* 正文排版 */
.article-body{
  background:var(--c-surface);border:1px solid var(--c-border);border-radius:var(--r-card);
  padding:40px 44px;box-shadow:var(--sh-1);max-width:840px;
}
.article-body>*:first-child{margin-top:0}
.article-body p{font-size:16px;line-height:1.85;color:var(--c-text);margin:0 0 20px}
.article-body h2{
  position:relative;font-size:28px;line-height:1.35;margin:40px 0 18px;padding-left:18px;
}
.article-body h2::before{
  content:"";position:absolute;left:0;top:6px;bottom:6px;width:4px;border-radius:2px;background:var(--c-primary);
}
.article-body h3{font-size:20px;font-weight:600;margin:30px 0 14px}
.article-body h4{font-size:17px;font-weight:600;margin:24px 0 12px}
.article-body a{color:var(--c-primary);border-bottom:1px solid rgba(29,99,237,.3)}
.article-body a:hover{color:var(--c-primary-deep);border-bottom-color:var(--c-primary-deep)}
.article-body ul,.article-body ol{margin:0 0 22px;padding-left:24px}
.article-body ul{list-style:none;padding-left:0}
.article-body ul li{position:relative;padding-left:24px;margin-bottom:12px;line-height:1.9}
.article-body ul li::before{
  content:"";position:absolute;left:2px;top:12px;width:8px;height:8px;border-radius:50%;
  background:var(--c-primary-soft);box-shadow:inset 0 0 0 2px var(--c-primary);
}
.article-body ol li{margin-bottom:12px;line-height:1.9}
.article-body blockquote{
  margin:26px 0;padding:20px 24px;background:var(--c-primary-soft);
  border-left:3px solid var(--c-primary);border-radius:0 var(--r-img) var(--r-img) 0;color:var(--c-ink);
}
.article-body blockquote p:last-child{margin-bottom:0}
.article-body img{border-radius:var(--r-img);margin:26px auto}
.article-body figure{margin:26px 0}
.article-body figcaption{font-size:13px;color:var(--c-muted);text-align:center;margin-top:10px}
.article-body table{
  width:100%;border-collapse:collapse;margin:24px 0;font-size:15px;display:block;overflow-x:auto;
}
.article-body th,.article-body td{border:1px solid var(--c-border);padding:12px 16px;text-align:left;vertical-align:top}
.article-body th{background:var(--c-primary-soft);color:var(--c-ink);font-weight:600;white-space:nowrap}
.article-body tbody tr:nth-child(even){background:#FAFBFE}
.article-body hr{border:0;border-top:1px solid var(--c-border);margin:34px 0}
.article-body code{
  background:var(--c-primary-soft);color:var(--c-primary-deep);padding:2px 6px;border-radius:6px;font-size:14px;
}

/* 空态 */
.empty-state{
  background:var(--c-surface);border:1px solid var(--c-border);border-radius:var(--r-card);
  padding:56px 32px;text-align:center;box-shadow:var(--sh-1);
}
.empty-state i{font-size:44px;color:rgba(29,99,237,.3);display:block;margin-bottom:16px}
.empty-state h3{font-size:20px;margin-bottom:10px}
.empty-state p{font-size:14px;color:var(--c-muted);margin-bottom:22px}

/* 标签与翻页 */
.tag-row{display:flex;flex-wrap:wrap;gap:10px;margin-top:26px}
.tag{
  display:inline-flex;align-items:center;height:30px;padding:0 14px;border-radius:var(--r-pill);
  background:var(--c-surface);border:1px solid var(--c-border);color:var(--c-text);font-size:13px;
}
.tag:hover{border-color:var(--c-primary);color:var(--c-primary);background:var(--c-primary-soft)}
.post-nav{display:grid;grid-template-columns:1fr 1fr;gap:16px;margin-top:28px}
.post-nav-item{
  display:block;background:var(--c-surface);border:1px solid var(--c-border);border-radius:var(--r-card);
  padding:18px 20px;transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.post-nav-item:hover{transform:translateY(-3px);box-shadow:var(--sh-2);border-color:rgba(29,99,237,.28)}
.post-nav-item span{display:block;font-size:13px;color:var(--c-muted);margin-bottom:6px}
.post-nav-item b{display:block;font-size:15px;color:var(--c-ink);font-weight:600;line-height:1.5;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}

/* ---------- 侧栏 ---------- */
.side-sticky{position:sticky;top:96px}
.side-card{
  background:var(--c-surface);border:1px solid var(--c-border);border-radius:var(--r-card);
  padding:22px 22px 18px;box-shadow:var(--sh-1);margin-bottom:22px;
}
.side-card h3{
  font-size:17px;font-weight:600;margin-bottom:16px;padding-bottom:12px;border-bottom:1px solid var(--c-border);
}
.side-list{list-style:none;margin:0;padding:0}
.side-list li{padding:12px 0;border-bottom:1px dashed var(--c-border)}
.side-list li:last-child{border-bottom:0;padding-bottom:0}
.side-list a{display:block;font-size:15px;line-height:1.6;color:var(--c-ink)}
.side-list a:hover{color:var(--c-primary)}
.side-list .side-time{display:block;font-size:13px;color:var(--c-muted);margin-top:4px}
.side-tags{display:flex;flex-wrap:wrap;gap:8px}
.side-back{
  display:flex;align-items:center;justify-content:center;gap:8px;height:44px;border-radius:var(--r-btn);
  background:var(--c-primary-soft);color:var(--c-primary);font-size:14px;font-weight:600;
}
.side-back:hover{background:var(--c-primary);color:#fff}

/* ---------- 相关推荐 ---------- */
.section-head{margin-bottom:26px}
.section-title{position:relative;font-size:30px;line-height:1.3;padding-left:18px}
.section-title::before{
  content:"";position:absolute;left:0;top:8px;bottom:8px;width:4px;border-radius:2px;background:var(--c-primary);
}
.section-sub{font-size:14px;color:var(--c-muted);margin:10px 0 0}
.card-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px}
.card{
  display:flex;flex-direction:column;background:var(--c-surface);border:1px solid var(--c-border);
  border-radius:var(--r-card);overflow:hidden;box-shadow:var(--sh-1);
  transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.card:hover{transform:translateY(-4px);box-shadow:var(--sh-2);border-color:rgba(29,99,237,.28)}
.card:hover .card-cover img{transform:scale(1.03)}
.card-cover{aspect-ratio:16/9;overflow:hidden;background:var(--c-primary-soft)}
.card-cover img{width:100%;height:100%;object-fit:cover;transition:transform .22s ease-out}
.card-body{padding:20px 22px 22px;display:flex;flex-direction:column;flex:1}
.card-title{font-size:18px;font-weight:600;line-height:1.5;margin-bottom:10px;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.card-text{font-size:14px;line-height:1.75;color:var(--c-text);margin-bottom:14px;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.card-meta{display:flex;align-items:center;gap:12px;font-size:13px;color:var(--c-muted);margin-top:auto}
.card-link{display:inline-flex;align-items:center;gap:6px;margin-top:14px;font-size:14px;font-weight:600}
.card-link i{font-size:12px}

/* ---------- CTA ---------- */
.cta-band{
  background:var(--c-primary);
  background-image:repeating-linear-gradient(135deg,rgba(255,255,255,.06) 0 2px,transparent 2px 14px);
  border-radius:20px;padding:48px 52px;display:flex;align-items:center;justify-content:space-between;
  gap:32px;flex-wrap:wrap;color:#fff;
}
.cta-band h2{color:#fff;font-size:30px;line-height:1.3;margin-bottom:10px}
.cta-band p{color:rgba(255,255,255,.86);font-size:15px;margin:0;max-width:620px}
.cta-actions{display:flex;gap:14px;flex-wrap:wrap}
.cta-band .btn-accent{background:#fff;color:var(--c-primary)}
.cta-band .btn-accent:hover{background:#EAF1FF;color:var(--c-primary-deep)}
.cta-band .btn-ghost{background:transparent;border-color:rgba(255,255,255,.55);color:#fff}
.cta-band .btn-ghost:hover{background:rgba(255,255,255,.14);color:#fff;border-color:#fff}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--c-ink);color:#AEB7C6;margin-top:72px}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.3fr;gap:40px;padding:60px 0 36px}
.footer-brand{display:flex;align-items:center;gap:10px;color:#fff;font-size:17px;font-weight:600;margin-bottom:16px}
.footer-col p{font-size:14px;line-height:1.85;color:#98A2B3;margin:0}
.footer-col h4{color:#fff;font-size:16px;font-weight:600;margin:0 0 18px}
.footer-links{list-style:none;margin:0;padding:0}
.footer-links li{margin-bottom:11px}
.footer-links a{color:#98A2B3;font-size:14px}
.footer-links a:hover{color:#7EA8FF}
.footer-contact{list-style:none;margin:0;padding:0}
.footer-contact li{display:flex;gap:10px;font-size:14px;color:#98A2B3;margin-bottom:12px;line-height:1.7}
.footer-contact i{color:#7EA8FF;margin-top:5px}
.footer-bottom{
  display:flex;justify-content:space-between;align-items:center;gap:12px;flex-wrap:wrap;
  border-top:1px solid rgba(255,255,255,.1);padding:20px 0 30px;font-size:13px;color:#8A94A6;
}

/* ---------- 响应式 ---------- */
@media (max-width:1180px){
  .nav-list{gap:18px}
  .nav-link{font-size:14px}
  .page-h1{font-size:40px}
}
@media (max-width:1023px){
  .nav-toggle{display:flex}
  .nav-wrap{
    position:absolute;top:calc(100% + 1px);left:-24px;right:-24px;display:none;
    flex-direction:column;align-items:stretch;gap:0;background:#fff;
    padding:10px 24px 22px;border-bottom:1px solid var(--c-border);box-shadow:0 18px 32px rgba(15,23,42,.1);
  }
  .nav-wrap.is-open{display:flex}
  .nav-list{flex-direction:column;align-items:stretch;gap:0;margin-bottom:14px}
  .nav-list li{border-bottom:1px solid var(--c-border)}
  .nav-link{display:block;padding:14px 0;font-size:15px}
  .nav-link::after{display:none}
  .nav-link.is-active{font-weight:600}
  .article-layout{grid-template-columns:1fr}
  .side-sticky{position:static}
  .article-body{padding:30px 26px;max-width:none}
  .page-h1{font-size:32px}
  .section-title{font-size:26px}
  .card-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;padding:48px 0 28px}
  .cta-band{padding:36px 28px}
  .cta-band h2{font-size:24px}
  .section{padding:48px 0}
}
@media (max-width:640px){
  .header-inner{height:60px}
  .brand-text b{font-size:15px}
  .brand-text em{display:none}
  .brand-mark{width:34px;height:34px;font-size:16px}
  .page-h1{font-size:27px;line-height:1.3}
  .article-hero{padding:20px 0 30px}
  .article-body{padding:24px 18px}
  .article-body h2{font-size:22px}
  .article-body h3{font-size:18px}
  .article-body table{font-size:14px}
  .section{padding:40px 0}
  .card-grid{grid-template-columns:1fr;gap:16px}
  .post-nav{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr;gap:28px}
  .footer-bottom{flex-direction:column;align-items:flex-start}
  .cta-band{padding:30px 20px;border-radius:16px}
  .cta-actions{width:100%}
  .cta-actions .btn{width:100%}
  .crumb-list .current{max-width:100%;white-space:normal}
}

/* roulang page: category1 */
/* ============ 1. 设计变量 ============ */
:root{
  --c-primary:#1D63ED;
  --c-primary-deep:#0F47BF;
  --c-primary-soft:#E8F0FE;
  --c-accent:#FF6B2C;
  --c-accent-soft:#FFF2EA;
  --c-ink:#0F172A;
  --c-text:#4A5468;
  --c-muted:#8A94A6;
  --c-bg:#F5F7FB;
  --c-surface:#FFFFFF;
  --c-border:#E5E9F2;
  --c-success:#12A150;
  --r-card:16px;
  --r-img:12px;
  --r-btn:10px;
  --r-pill:999px;
  --sh-1:0 1px 2px rgba(15,23,42,.05),0 8px 24px rgba(15,23,42,.06);
  --sh-2:0 12px 32px rgba(29,99,237,.16);
  --sh-head:0 8px 24px rgba(15,23,42,.06);
  --tr:.18s ease;
  --font-cn:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
}

/* ============ 2. 基础重置 ============ */
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:var(--font-cn);
  font-size:16px;
  line-height:1.8;
  color:var(--c-text);
  background:var(--c-bg);
  font-variant-numeric:tabular-nums;
}
img{max-width:100%;height:auto;display:block;border-radius:var(--r-img);}
a{color:var(--c-primary);text-decoration:none;background-color:transparent;transition:color var(--tr);}
a:hover{color:var(--c-primary-deep);}
ul,ol{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4{margin:0;color:var(--c-ink);font-weight:700;}
h1{font-size:clamp(30px,4vw,50px);line-height:1.2;font-weight:700;}
h2{font-size:clamp(24px,2.6vw,32px);line-height:1.3;}
h3{font-size:clamp(19px,1.8vw,22px);line-height:1.4;font-weight:600;}
p{margin:0 0 20px;}
p:last-child{margin-bottom:0;}
button{font-family:inherit;}
:focus-visible{outline:2px solid var(--c-primary);outline-offset:2px;}
::selection{background:var(--c-primary-soft);color:var(--c-primary-deep);}

/* ============ 3. 容器与栅格 ============ */
.grid-container{max-width:1240px;margin:0 auto;padding-left:24px;padding-right:24px;width:100%;}
.grid-x.grid-padding-x{margin-left:-12px;margin-right:-12px;}
.grid-x.grid-padding-x > .cell{padding-left:12px;padding-right:12px;}
@media screen and (max-width:640px){
  .grid-container{padding-left:16px;padding-right:16px;}
  .grid-x.grid-padding-x{margin-left:-8px;margin-right:-8px;}
  .grid-x.grid-padding-x > .cell{padding-left:8px;padding-right:8px;}
}

/* ============ 4. 通用板块与标题 ============ */
.section{padding:96px 0;}
.section-alt{background:var(--c-surface);}
.section-tight{padding:64px 0;}
.sec-head{max-width:760px;margin-bottom:48px;}
.sec-head.center{margin-left:auto;margin-right:auto;text-align:center;}
.sec-title{position:relative;padding-left:18px;margin-bottom:18px;}
.sec-title::before{
  content:"";position:absolute;left:0;top:.16em;bottom:.16em;width:4px;
  background:var(--c-primary);border-radius:2px;
}
.sec-head.center .sec-title{padding-left:0;}
.sec-head.center .sec-title::before{left:50%;transform:translateX(-50%);bottom:auto;top:auto;position:relative;display:block;width:48px;height:4px;margin:0 auto 16px;top:0;}
.sec-desc{color:var(--c-text);font-size:16px;line-height:1.85;}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  height:30px;padding:0 14px;margin-bottom:16px;
  background:var(--c-primary-soft);color:var(--c-primary-deep);
  border-radius:var(--r-pill);font-size:13px;font-weight:600;letter-spacing:.02em;
}

/* ============ 5. 按钮 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 24px;border:1px solid transparent;
  border-radius:var(--r-btn);font-size:15px;font-weight:600;line-height:1;
  cursor:pointer;transition:all var(--tr);white-space:nowrap;
}
.btn i{font-size:15px;}
.btn-primary{background:var(--c-primary);color:#fff;box-shadow:0 6px 16px rgba(29,99,237,.22);}
.btn-primary:hover,.btn-primary:focus{background:var(--c-primary-deep);color:#fff;transform:translateY(-2px);box-shadow:0 10px 24px rgba(29,99,237,.28);}
.btn-primary:active{transform:translateY(0);}
.btn-accent{background:var(--c-accent);color:#fff;box-shadow:0 6px 16px rgba(255,107,44,.24);}
.btn-accent:hover,.btn-accent:focus{background:#E85A1D;color:#fff;transform:translateY(-2px);box-shadow:0 10px 24px rgba(255,107,44,.3);}
.btn-accent:active{transform:translateY(0);}
.btn-outline{background:var(--c-surface);color:var(--c-primary);border-color:var(--c-border);}
.btn-outline:hover,.btn-outline:focus{background:var(--c-primary-soft);color:var(--c-primary-deep);border-color:var(--c-primary-soft);transform:translateY(-2px);}
.btn-ghost-light{background:rgba(255,255,255,.14);color:#fff;border-color:rgba(255,255,255,.5);}
.btn-ghost-light:hover,.btn-ghost-light:focus{background:rgba(255,255,255,.24);color:#fff;border-color:#fff;}
.btn-sm{height:40px;padding:0 18px;font-size:14px;}
.btn-lg{height:54px;padding:0 30px;font-size:16px;}

/* ============ 6. 站点导航 ============ */
.site-header{
  position:sticky;top:0;z-index:60;
  background:var(--c-surface);
  border-bottom:1px solid var(--c-border);
  transition:box-shadow var(--tr);
}
.site-header.is-stuck{box-shadow:var(--sh-head);}
.header-inner{display:flex;align-items:center;justify-content:space-between;height:72px;gap:24px;}
.brand{display:flex;align-items:center;gap:12px;flex:0 0 auto;}
.brand-mark{
  width:40px;height:40px;flex:0 0 40px;display:flex;align-items:center;justify-content:center;
  background:var(--c-primary);color:#fff;border-radius:12px;
  font-size:19px;font-weight:700;letter-spacing:.02em;
  box-shadow:0 6px 16px rgba(29,99,237,.24);
}
.brand-text{display:flex;flex-direction:column;line-height:1.2;}
.brand-text b{font-size:17px;color:var(--c-ink);font-weight:700;letter-spacing:.01em;}
.brand-text em{font-style:normal;font-size:10px;letter-spacing:.18em;color:var(--c-muted);text-transform:uppercase;}
.brand:hover .brand-text b{color:var(--c-primary);}
.nav-wrap{display:flex;align-items:center;gap:24px;}
.nav-list{display:flex;align-items:center;gap:4px;}
.nav-link{
  display:inline-block;padding:10px 14px;border-radius:8px;
  font-size:15px;font-weight:500;color:var(--c-text);position:relative;
  transition:color var(--tr),background-color var(--tr);
}
.nav-link::after{
  content:"";position:absolute;left:14px;right:14px;bottom:4px;height:2px;
  background:var(--c-primary);border-radius:2px;transform:scaleX(0);transform-origin:center;
  transition:transform var(--tr);
}
.nav-link:hover{color:var(--c-primary);}
.nav-link:hover::after{transform:scaleX(1);}
.nav-link.is-active{color:var(--c-primary);font-weight:600;}
.nav-link.is-active::after{transform:scaleX(1);}
.nav-toggle{
  display:none;width:44px;height:44px;border:1px solid var(--c-border);
  background:var(--c-surface);border-radius:10px;color:var(--c-ink);
  font-size:18px;cursor:pointer;transition:all var(--tr);
}
.nav-toggle:hover{background:var(--c-primary-soft);color:var(--c-primary);border-color:var(--c-primary-soft);}

/* ============ 7. 内页 Banner ============ */
.page-hero{position:relative;overflow:hidden;background:var(--c-ink);}
.page-hero-bg{
  position:absolute;inset:0;
  background-image:url('/assets/images/backpic/back-1.png');
  background-size:cover;background-position:center;
  transform:scale(1.02);
}
.page-hero-mask{position:absolute;inset:0;background:rgba(10,23,48,.68);}
.page-hero-inner{position:relative;z-index:2;padding-top:64px;padding-bottom:72px;}
.crumbs{margin-bottom:24px;}
.breadcrumbs{
  margin:0;padding:0;background:transparent;border:0;
  display:flex;flex-wrap:wrap;align-items:center;gap:4px;
}
.breadcrumbs li{font-size:14px;color:rgba(255,255,255,.68);line-height:1.6;}
.breadcrumbs li a{color:rgba(255,255,255,.68);text-transform:none;font-size:14px;}
.breadcrumbs li a:hover{color:#fff;}
.breadcrumbs li:not(:last-child)::after{
  content:"/";margin:0 8px;color:rgba(255,255,255,.4);
}
.breadcrumbs li.disabled,.breadcrumbs li.current{color:#fff;font-weight:600;cursor:default;}
.hero-tag{
  display:inline-flex;align-items:center;gap:8px;height:32px;padding:0 16px;
  background:rgba(255,255,255,.14);border:1px solid rgba(255,255,255,.28);
  border-radius:var(--r-pill);color:#fff;font-size:13px;font-weight:600;
  margin-bottom:20px;
}
.page-hero h1{color:#fff;max-width:900px;margin-bottom:20px;text-shadow:0 2px 12px rgba(0,0,0,.18);}
.hero-lead{color:rgba(255,255,255,.86);font-size:17px;line-height:1.85;max-width:760px;margin-bottom:32px;}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;}

/* ============ 8. 概览条 ============ */
.overview{background:var(--c-surface);border-bottom:1px solid var(--c-border);}
.overview-inner{padding:56px 0;display:grid;grid-template-columns:1fr;gap:32px;}
.overview-text{max-width:820px;font-size:16px;line-height:1.9;}
.overview-tags{display:flex;flex-wrap:wrap;gap:12px;}
.pill{
  display:inline-flex;align-items:center;gap:8px;height:36px;padding:0 16px;
  background:var(--c-primary-soft);color:var(--c-primary-deep);
  border-radius:var(--r-pill);font-size:14px;font-weight:600;
}
.pill i{font-size:13px;}
.pill-accent{background:var(--c-accent-soft);color:#D64F10;}

/* ============ 9. 交错图文区 ============ */
.feature-row{margin-bottom:88px;}
.feature-row:last-child{margin-bottom:0;}
.feature-media img{
  width:100%;aspect-ratio:4/3;object-fit:cover;border-radius:var(--r-card);
  box-shadow:var(--sh-1);transition:transform var(--tr),box-shadow var(--tr);
}
.feature-media:hover img{transform:translateY(-4px);box-shadow:var(--sh-2);}
.feature-body{padding:8px 0 8px 24px;}
.feature-row.reverse .feature-body{padding-left:0;padding-right:24px;}
.feature-index{
  display:inline-flex;align-items:center;justify-content:center;
  width:38px;height:38px;border-radius:12px;background:var(--c-primary);
  color:#fff;font-size:15px;font-weight:700;margin-bottom:18px;
  box-shadow:0 6px 16px rgba(29,99,237,.22);
}
.feature-body h3{margin-bottom:16px;}
.feature-body p{color:var(--c-text);}
.check-list{margin-top:24px;display:grid;gap:12px;}
.check-list li{display:flex;align-items:flex-start;gap:10px;font-size:15px;color:var(--c-ink);line-height:1.7;}
.check-list li i{color:var(--c-success);font-size:16px;margin-top:5px;flex:0 0 auto;}

/* ============ 10. 数据说明带 ============ */
.stats-band{background:var(--c-ink);color:#fff;padding:72px 0;}
.stats-grid{row-gap:32px;}
.stat-item{
  background:rgba(255,255,255,.06);
  border:1px solid rgba(255,255,255,.12);
  border-radius:var(--r-card);padding:28px 24px;height:100%;
  transition:transform var(--tr),background-color var(--tr),border-color var(--tr);
}
.stat-item:hover{transform:translateY(-4px);background:rgba(255,255,255,.1);border-color:rgba(255,255,255,.24);}
.stat-item strong{
  display:block;font-size:34px;line-height:1.2;font-weight:700;color:#fff;
  margin-bottom:8px;letter-spacing:.01em;
}
.stat-item strong em{font-style:normal;font-size:16px;font-weight:600;color:rgba(255,255,255,.7);margin-left:6px;}
.stat-item span{font-size:15px;color:rgba(255,255,255,.72);}
.stat-note{margin-top:32px;font-size:14px;color:rgba(255,255,255,.6);max-width:860px;}

/* ============ 11. CTA 区 ============ */
.cta-section{padding:96px 0;}
.cta-box{
  position:relative;overflow:hidden;
  background:var(--c-primary);border-radius:20px;
  padding:56px 48px;
  display:flex;align-items:center;justify-content:space-between;gap:40px;flex-wrap:wrap;
  box-shadow:0 18px 48px rgba(29,99,237,.24);
}
.cta-box::after{
  content:"";position:absolute;right:-60px;top:-60px;width:280px;height:280px;
  border-radius:50%;background:rgba(255,255,255,.06);
}
.cta-box::before{
  content:"";position:absolute;right:100px;bottom:-90px;width:200px;height:200px;
  border-radius:50%;background:rgba(255,255,255,.05);
}
.cta-copy{position:relative;z-index:2;max-width:620px;}
.cta-copy h2{color:#fff;margin-bottom:14px;}
.cta-copy p{color:rgba(255,255,255,.86);font-size:16px;margin:0;}
.cta-actions{position:relative;z-index:2;display:flex;flex-wrap:wrap;gap:14px;}
.cta-actions .btn-primary{background:#fff;color:var(--c-primary);box-shadow:0 8px 20px rgba(9,20,45,.18);}
.cta-actions .btn-primary:hover{background:#F2F6FF;color:var(--c-primary-deep);}

/* ============ 12. 页脚 ============ */
.site-footer{background:var(--c-ink);color:rgba(255,255,255,.72);padding:72px 0 0;}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:40px;padding-bottom:48px;}
.footer-brand{display:flex;align-items:center;gap:12px;margin-bottom:18px;}
.footer-brand .brand-mark{width:36px;height:36px;flex:0 0 36px;font-size:17px;border-radius:10px;}
.footer-brand span:last-child{color:#fff;font-size:16px;font-weight:700;}
.footer-col p{font-size:14px;line-height:1.9;color:rgba(255,255,255,.62);margin:0;}
.footer-col h4{color:#fff;font-size:15px;font-weight:600;margin-bottom:20px;letter-spacing:.02em;}
.footer-links li{margin-bottom:12px;}
.footer-links a{color:rgba(255,255,255,.66);font-size:14px;transition:color var(--tr),padding-left var(--tr);}
.footer-links a:hover{color:var(--c-primary);padding-left:4px;}
.footer-contact li{display:flex;align-items:flex-start;gap:10px;margin-bottom:14px;font-size:14px;color:rgba(255,255,255,.66);line-height:1.7;}
.footer-contact li i{color:var(--c-primary);margin-top:4px;flex:0 0 auto;}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.12);
  padding:22px 0;display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:13px;color:rgba(255,255,255,.5);
}

/* ============ 13. 响应式断点 ============ */
@media screen and (max-width:1023px){
  .section{padding:72px 0;}
  .cta-section{padding:72px 0;}
  .header-inner{height:64px;}
  .nav-toggle{display:inline-flex;align-items:center;justify-content:center;}
  .nav-wrap{
    position:absolute;left:0;right:0;top:100%;
    background:var(--c-surface);
    border-bottom:1px solid var(--c-border);
    box-shadow:var(--sh-head);
    flex-direction:column;align-items:stretch;gap:0;
    padding:12px 24px 24px;
    display:none;
  }
  .nav-wrap.is-open{display:flex;}
  .nav-list{flex-direction:column;align-items:stretch;gap:0;}
  .nav-link{display:block;padding:14px 4px;border-bottom:1px solid var(--c-border);border-radius:0;font-size:16px;}
  .nav-link::after{display:none;}
  .nav-link.is-active{background:var(--c-primary-soft);border-radius:8px;padding-left:14px;}
  .nav-wrap .btn{margin-top:16px;width:100%;}
  .feature-body{padding:0 !important;}
  .feature-row{margin-bottom:64px;}
  .feature-row.reverse .cell:first-child{order:2;}
  .feature-row.reverse .cell:last-child{order:1;}
  .feature-media{margin-bottom:24px;}
  .page-hero-inner{padding-top:48px;padding-bottom:56px;}
  .stats-band{padding:56px 0;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
  .cta-box{padding:44px 32px;}
}
@media screen and (max-width:640px){
  body{font-size:16px;}
  .section{padding:56px 0;}
  .cta-section{padding:56px 0;}
  .sec-head{margin-bottom:32px;}
  .page-hero-inner{padding-top:36px;padding-bottom:44px;}
  .page-hero h1{font-size:30px;}
  .hero-lead{font-size:15px;margin-bottom:24px;}
  .hero-actions{gap:10px;}
  .hero-actions .btn{flex:1 1 100%;}
  .brand-text b{font-size:15px;}
  .brand-text em{display:none;}
  .overview-inner{padding:40px 0;gap:24px;}
  .feature-row{margin-bottom:48px;}
  .stat-item{padding:22px 18px;}
  .stat-item strong{font-size:28px;}
  .cta-box{padding:32px 22px;border-radius:16px;}
  .cta-actions{width:100%;}
  .cta-actions .btn{flex:1 1 100%;}
  .footer-grid{grid-template-columns:1fr;gap:32px;padding-bottom:36px;}
  .footer-bottom{flex-direction:column;align-items:flex-start;gap:8px;}
  .site-footer{padding-top:56px;}
}

/* roulang page: category2 */
/* ============ 1. 设计变量 ============ */
:root{
  --c-primary:#1D63ED;
  --c-primary-deep:#0F47BF;
  --c-primary-soft:#E8F0FE;
  --c-accent:#FF6B2C;
  --c-accent-soft:#FFF2EA;
  --c-ink:#0F172A;
  --c-text:#4A5468;
  --c-muted:#8A94A6;
  --c-bg:#F5F7FB;
  --c-surface:#FFFFFF;
  --c-border:#E5E9F2;
  --c-success:#12A150;
  --r-card:16px;
  --r-img:12px;
  --r-btn:10px;
  --r-pill:999px;
  --sh-1:0 1px 2px rgba(15,23,42,.05), 0 8px 24px rgba(15,23,42,.06);
  --sh-2:0 12px 32px rgba(29,99,237,.16);
  --ease:200ms ease-out;
  --max:1240px;
}
/* ============ 2. 基础 reset ============ */
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
  background:var(--c-bg);
  color:var(--c-text);
  font-size:16px;
  line-height:1.8;
  -webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4,h5{margin:0;color:var(--c-ink);font-weight:700;line-height:1.3}
h1{font-size:48px;line-height:1.2}
h2{font-size:32px}
h3{font-size:21px;font-weight:600;line-height:1.4}
p{margin:0 0 16px}
p:last-child{margin-bottom:0}
ul,ol{margin:0;padding:0;list-style:none}
img{display:block;max-width:100%;height:auto;border-radius:var(--r-img)}
a{color:var(--c-primary);text-decoration:none;transition:color var(--ease),background-color var(--ease),border-color var(--ease)}
a:hover{color:var(--c-primary-deep)}
button{font:inherit;cursor:pointer}
:focus-visible{outline:2px solid var(--c-primary);outline-offset:2px;border-radius:4px}
.num{font-variant-numeric:tabular-nums}
/* Foundation 覆写 */
.button,button.button{
  font-family:inherit;border-radius:var(--r-btn);
  background:var(--c-primary);color:#fff;border:0;
}
.button:hover,.button:focus{background:var(--c-primary-deep);color:#fff}
.grid-container{max-width:var(--max);margin:0 auto;padding-left:24px;padding-right:24px}
.grid-margin-x{margin-left:-12px;margin-right:-12px}
.grid-margin-x>.cell{padding-left:12px;padding-right:12px}
.grid-margin-y{margin-top:-12px;margin-bottom:-12px}
.grid-margin-y>.cell{padding-top:12px;padding-bottom:12px}
/* ============ 3. 通用容器与板块 ============ */
.section{padding:96px 0}
.section-tight{padding:64px 0}
.section-alt{background:var(--c-surface)}
.sec-head{max-width:760px;margin-bottom:48px}
.sec-head.center{margin-left:auto;margin-right:auto;text-align:center}
.sec-label{
  display:inline-block;font-size:13px;font-weight:600;letter-spacing:.08em;
  color:var(--c-primary);background:var(--c-primary-soft);
  padding:5px 14px;border-radius:var(--r-pill);margin-bottom:16px;
}
.sec-title{position:relative;padding-left:18px;font-size:32px;margin-bottom:16px}
.sec-title::before{
  content:"";position:absolute;left:0;top:.16em;width:4px;height:.9em;
  border-radius:2px;background:var(--c-primary);
}
.sec-head.center .sec-title{padding-left:0}
.sec-head.center .sec-title::before{display:none}
.sec-desc{font-size:16px;color:var(--c-text);margin:0}
/* ============ 4. 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:15px;font-weight:600;border:1px solid transparent;
  transition:transform var(--ease),background-color var(--ease),color var(--ease),box-shadow var(--ease);
  white-space:nowrap;
}
.btn-primary{background:var(--c-primary);color:#fff}
.btn-primary:hover{background:var(--c-primary-deep);color:#fff;transform:translateY(-2px);box-shadow:var(--sh-2)}
.btn-primary:active{transform:translateY(1px)}
.btn-accent{background:var(--c-accent);color:#fff}
.btn-accent:hover{background:#E85A1C;color:#fff;transform:translateY(-2px);box-shadow:0 12px 32px rgba(255,107,44,.22)}
.btn-accent:active{transform:translateY(1px)}
.btn-ghost{background:#fff;border-color:var(--c-border);color:var(--c-primary)}
.btn-ghost:hover{background:var(--c-primary-soft);border-color:#C9DBFB;color:var(--c-primary-deep)}
.btn-ghost-light{background:rgba(255,255,255,.12);border-color:rgba(255,255,255,.42);color:#fff}
.btn-ghost-light:hover{background:rgba(255,255,255,.22);color:#fff;border-color:#fff}
.btn-sm{height:40px;padding:0 18px;font-size:14px}
/* ============ 5. 头部导航 ============ */
.site-header{
  position:sticky;top:0;z-index:60;background:#fff;
  border-bottom:1px solid var(--c-border);
  transition:box-shadow var(--ease);
}
.site-header.is-scrolled{box-shadow:0 8px 24px rgba(15,23,42,.06)}
.header-inner{position:relative;display:flex;align-items:center;justify-content:space-between;gap:24px;height:72px}
.brand{display:flex;align-items:center;gap:12px;color:var(--c-ink)}
.brand:hover{color:var(--c-ink)}
.brand-mark{
  width:40px;height:40px;flex:0 0 40px;border-radius:12px;background:var(--c-primary);
  color:#fff;display:flex;align-items:center;justify-content:center;
  font-size:18px;font-weight:700;letter-spacing:.02em;
}
.brand-text b{display:block;font-size:17px;line-height:1.25;color:var(--c-ink);font-weight:700}
.brand-text em{display:block;font-style:normal;font-size:10px;letter-spacing:.18em;color:var(--c-muted);text-transform:uppercase}
.nav-wrap{display:flex;align-items:center;gap:24px}
.nav-list{display:flex;align-items:center;gap:6px}
.nav-link{
  position:relative;display:inline-block;padding:10px 14px;border-radius:8px;
  font-size:15px;font-weight:500;color:var(--c-text);
}
.nav-link::after{
  content:"";position:absolute;left:14px;right:14px;bottom:2px;height:2px;
  border-radius:2px;background:var(--c-primary);transform:scaleX(0);
  transform-origin:left;transition:transform var(--ease);
}
.nav-link:hover{color:var(--c-primary);background:var(--c-primary-soft)}
.nav-link:hover::after,.nav-link.is-active::after{transform:scaleX(1)}
.nav-link.is-active{color:var(--c-primary);font-weight:600}
.nav-toggle{
  display:none;width:42px;height:42px;border-radius:10px;border:1px solid var(--c-border);
  background:#fff;color:var(--c-ink);align-items:center;justify-content:center;font-size:18px;
}
.nav-toggle:hover{border-color:var(--c-primary);color:var(--c-primary)}
/* ============ 6. 面包屑 ============ */
.crumb-bar{padding:20px 0 0}
.breadcrumbs{margin:0;padding:0;background:transparent;border:0}
.breadcrumbs::before,.breadcrumbs::after{display:none;content:""}
.breadcrumbs li{float:none;display:inline-block;font-size:13px;color:var(--c-muted);text-transform:none}
.breadcrumbs li a{color:var(--c-muted);font-size:13px}
.breadcrumbs li a:hover{color:var(--c-primary)}
.breadcrumbs li:not(:last-child)::after{content:"/";margin:0 8px;color:#C3CAD8;position:static}
.breadcrumbs .current{color:var(--c-ink);font-weight:500}
/* ============ 7. 分类页 Hero ============ */
.cat-hero{
  background:var(--c-primary-soft);
  padding:28px 0 72px;
  position:relative;
  overflow:hidden;
}
.cat-hero::after{
  content:"";position:absolute;right:-120px;top:-80px;width:420px;height:420px;
  border:38px solid rgba(29,99,237,.07);border-radius:50%;
}
.cat-hero .grid-container{position:relative;z-index:2}
.hero-grid{display:grid;grid-template-columns:minmax(0,1fr) 420px;gap:56px;align-items:center;margin-top:28px}
.hero-copy h1{font-size:46px;margin-bottom:20px;letter-spacing:-.01em}
.hero-copy .lead{font-size:17px;line-height:1.85;color:var(--c-text);max-width:640px;margin-bottom:28px}
.hero-tags{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:28px}
.tag{
  display:inline-flex;align-items:center;gap:6px;
  padding:6px 14px;border-radius:var(--r-pill);
  background:#fff;color:var(--c-primary);font-size:13px;font-weight:600;
  border:1px solid #D6E3FC;
}
.tag-accent{background:var(--c-accent-soft);color:#D9541F;border-color:#FFD9C4}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px}
.hero-figure{
  position:relative;background:#fff;border-radius:20px;padding:14px;box-shadow:var(--sh-1);
}
.hero-figure img{width:100%;aspect-ratio:4/3;object-fit:cover;border-radius:14px}
.hero-figure .fig-note{
  position:absolute;left:26px;bottom:26px;right:26px;
  background:rgba(15,23,42,.86);color:#fff;border-radius:12px;
  padding:12px 16px;font-size:13px;line-height:1.6;
}
/* ============ 8. 筛选条 ============ */
.filter-bar{
  display:flex;flex-wrap:wrap;align-items:center;gap:12px;
  padding:18px;background:#fff;border:1px solid var(--c-border);
  border-radius:var(--r-card);box-shadow:var(--sh-1);margin-bottom:40px;
}
.filter-bar .filter-label{font-size:14px;font-weight:600;color:var(--c-ink);margin-right:6px}
.pill{
  padding:9px 20px;border-radius:var(--r-pill);border:1px solid var(--c-border);
  background:#fff;color:var(--c-text);font-size:14px;font-weight:500;
  transition:all var(--ease);
}
.pill:hover{border-color:#C9DBFB;background:var(--c-primary-soft);color:var(--c-primary)}
.pill.is-active{background:var(--c-primary);border-color:var(--c-primary);color:#fff;font-weight:600}
.pill.is-active:hover{background:var(--c-primary-deep);border-color:var(--c-primary-deep);color:#fff}
/* ============ 9. 分类卡片 ============ */
.cat-card{
  display:flex;flex-direction:column;height:100%;
  background:var(--c-surface);border:1px solid var(--c-border);
  border-radius:var(--r-card);box-shadow:var(--sh-1);overflow:hidden;
  transition:transform var(--ease),box-shadow var(--ease),border-color var(--ease);
}
.cat-card:hover{transform:translateY(-4px);box-shadow:var(--sh-2);border-color:#D3E1FD}
.cat-card .card-media{overflow:hidden}
.cat-card .card-media img{
  width:100%;aspect-ratio:16/9;object-fit:cover;border-radius:0;
  transition:transform var(--ease);
}
.cat-card:hover .card-media img{transform:scale(1.03)}
.cat-card .card-body{padding:24px 24px 26px;display:flex;flex-direction:column;flex:1}
.cat-card h3{font-size:21px;margin-bottom:12px}
.cat-card .card-text{
  font-size:15px;color:var(--c-text);margin-bottom:18px;
  display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden;
}
.card-tags{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:20px}
.chip{
  font-size:12.5px;font-weight:600;padding:5px 12px;border-radius:var(--r-pill);
  background:var(--c-primary-soft);color:var(--c-primary);
}
.chip-soft{background:#F1F3F8;color:#63708A}
.card-link{
  margin-top:auto;display:inline-flex;align-items:center;gap:6px;
  font-size:15px;font-weight:600;color:var(--c-primary);
}
.card-link i{transition:transform var(--ease)}
.card-link:hover i{transform:translateX(4px)}
/* ============ 10. 双栏图文 ============ */
.split{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:56px;align-items:center}
.split-media{position:relative}
.split-media img{width:100%;aspect-ratio:4/3;object-fit:cover;border-radius:var(--r-card);box-shadow:var(--sh-1)}
.split-media .badge-float{
  position:absolute;right:-16px;bottom:24px;background:#fff;border-radius:14px;
  box-shadow:var(--sh-1);padding:14px 18px;border:1px solid var(--c-border);
}
.split-media .badge-float strong{display:block;font-size:24px;color:var(--c-accent);line-height:1.2}
.split-media .badge-float span{font-size:12.5px;color:var(--c-muted)}
.check-list{margin-top:8px}
.check-list li{position:relative;padding-left:32px;margin-bottom:18px;font-size:15.5px;line-height:1.8}
.check-list li:last-child{margin-bottom:0}
.check-list li::before{
  content:"\f00c";font-family:FontAwesome;position:absolute;left:0;top:3px;
  width:20px;height:20px;border-radius:50%;background:var(--c-primary-soft);
  color:var(--c-primary);font-size:11px;display:flex;align-items:center;justify-content:center;
}
.check-list strong{color:var(--c-ink)}
/* ============ 11. 数据带 ============ */
.stat-band{
  display:grid;grid-template-columns:repeat(3,minmax(0,1fr));
  background:#fff;border:1px solid var(--c-border);border-radius:var(--r-card);
  box-shadow:var(--sh-1);overflow:hidden;
}
.stat-item{padding:32px 28px;border-right:1px solid var(--c-border)}
.stat-item:last-child{border-right:0}
.stat-item strong{
  display:block;font-size:40px;line-height:1.1;color:var(--c-primary);
  font-variant-numeric:tabular-nums;margin-bottom:8px;
}
.stat-item .stat-accent{color:var(--c-accent)}
.stat-item span{display:block;font-size:14.5px;color:var(--c-text)}
.stat-item em{display:block;font-style:normal;font-size:12.5px;color:var(--c-muted);margin-top:6px}
/* ============ 12. FAQ ============ */
.faq-accordion{
  background:#fff;border:1px solid var(--c-border);border-radius:var(--r-card);
  box-shadow:var(--sh-1);overflow:hidden;margin:0;
}
.faq-accordion .accordion-item{border:0}
.faq-accordion .accordion-item + .accordion-item{border-top:1px solid var(--c-border)}
.faq-accordion .accordion-title{
  display:flex;align-items:center;justify-content:space-between;gap:20px;
  padding:22px 26px;font-size:16px;font-weight:600;color:var(--c-ink);
  background:transparent;border:0;width:100%;text-align:left;
}
.faq-accordion .accordion-title:hover{color:var(--c-primary);background:#FAFBFE}
.faq-accordion .accordion-title::before{display:none}
.faq-accordion .accordion-title::after{
  content:"+";flex:0 0 auto;font-size:20px;line-height:1;
  color:var(--c-primary);font-weight:600;transition:transform var(--ease);
}
.faq-accordion .accordion-item.is-active .accordion-title::after{content:"−";transform:rotate(180deg)}
.faq-accordion .accordion-content{
  display:none;padding:0 26px 24px;font-size:15px;line-height:1.85;color:var(--c-text);
  border:0;background:transparent;
}
.faq-accordion .accordion-item.is-active .accordion-content{display:block}
/* ============ 13. CTA ============ */
.cta-band{padding:0 0 96px}
.cta-box{
  position:relative;overflow:hidden;border-radius:20px;
  background:var(--c-primary);color:#fff;
  padding:56px 48px;display:flex;align-items:center;justify-content:space-between;gap:40px;
}
.cta-box::after{
  content:"";position:absolute;right:-60px;bottom:-90px;width:300px;height:300px;
  border:30px solid rgba(255,255,255,.09);border-radius:50%;
}
.cta-box h2{color:#fff;font-size:30px;margin-bottom:12px}
.cta-box p{color:rgba(255,255,255,.86);max-width:620px;margin:0;font-size:15.5px}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px;position:relative;z-index:2}
/* ============ 14. 页脚 ============ */
.site-footer{background:var(--c-ink);color:#B7C0D2;padding:72px 0 0;font-size:14.5px}
.footer-grid{
  display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:40px;
  padding-bottom:48px;
}
.footer-brand{display:flex;align-items:center;gap:10px;color:#fff;font-size:17px;font-weight:700;margin-bottom:16px}
.footer-brand .brand-mark{width:34px;height:34px;flex:0 0 34px;font-size:15px;border-radius:10px}
.footer-col h4{color:#fff;font-size:15px;font-weight:600;margin-bottom:18px}
.footer-col p{font-size:14px;line-height:1.85;color:#98A3B8;margin:0}
.footer-links li{margin-bottom:12px}
.footer-links a{color:#B7C0D2;font-size:14.5px}
.footer-links a:hover{color:#7EA8FF}
.footer-contact li{display:flex;gap:10px;margin-bottom:12px;color:#98A3B8;font-size:14px;line-height:1.7}
.footer-contact i{color:var(--c-primary);margin-top:5px}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.1);
  padding:22px 0 26px;display:flex;flex-wrap:wrap;gap:12px;
  align-items:center;justify-content:space-between;
  font-size:13px;color:#8C97AC;
}
/* ============ 15. 响应式 ============ */
@media (max-width:1199px){
  .hero-grid{grid-template-columns:minmax(0,1fr) 360px;gap:40px}
  .hero-copy h1{font-size:42px}
}
@media (max-width:1023px){
  h1{font-size:34px}
  .section{padding:72px 0}
  .section-tight{padding:52px 0}
  .cta-band{padding-bottom:72px}
  .sec-title{font-size:28px}
  .hero-grid{grid-template-columns:1fr;gap:36px}
  .hero-copy h1{font-size:34px}
  .hero-figure{max-width:560px}
  .split{grid-template-columns:1fr;gap:36px}
  .split-media{order:2}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
  .cta-box{flex-direction:column;align-items:flex-start;padding:44px 36px}
  .nav-toggle{display:flex}
  .nav-wrap{
    display:none;position:absolute;left:0;right:0;top:100%;
    flex-direction:column;align-items:stretch;gap:14px;
    background:#fff;border-bottom:1px solid var(--c-border);
    box-shadow:0 16px 32px rgba(15,23,42,.08);
    padding:16px 24px 24px;
  }
  .nav-wrap.is-open{display:flex}
  .nav-list{flex-direction:column;align-items:stretch;gap:0}
  .nav-link{padding:13px 4px;border-bottom:1px solid var(--c-border);border-radius:0}
  .nav-link::after{display:none}
  .nav-link:hover{background:transparent}
  .nav-wrap .btn{width:100%}
}
@media (max-width:767px){
  body{font-size:15.5px}
  .grid-container{padding-left:16px;padding-right:16px}
  .grid-margin-x{margin-left:-8px;margin-right:-8px}
  .grid-margin-x>.cell{padding-left:8px;padding-right:8px}
  h1{font-size:30px}
  .hero-copy h1{font-size:30px}
  .sec-title{font-size:24px}
  .cat-hero{padding:20px 0 56px}
  .section{padding:56px 0}
  .sec-head{margin-bottom:32px}
  .stat-band{grid-template-columns:1fr}
  .stat-item{border-right:0;border-bottom:1px solid var(--c-border);padding:24px 22px}
  .stat-item:last-child{border-bottom:0}
  .stat-item strong{font-size:32px}
  .filter-bar{padding:14px;gap:10px}
  .pill{padding:8px 16px;font-size:13.5px}
  .cta-box{padding:36px 24px;border-radius:16px}
  .cta-box h2{font-size:24px}
  .footer-grid{grid-template-columns:1fr;gap:28px}
  .hero-figure .fig-note{position:static;background:#F1F5FD;color:var(--c-text);margin-top:12px}
  .split-media .badge-float{right:12px;bottom:12px}
  .faq-accordion .accordion-title{padding:18px 18px;font-size:15.5px}
  .faq-accordion .accordion-content{padding:0 18px 20px}
  .brand-text em{display:none}
  .header-inner{height:60px}
  .brand-text b{font-size:15.5px}
  .cat-card .card-body{padding:20px 18px 22px}
}

/* roulang page: category3 */
:root{
  --c-primary:#1D63ED;
  --c-primary-deep:#0F47BF;
  --c-primary-soft:#E8F0FE;
  --c-accent:#FF6B2C;
  --c-accent-soft:#FFF2EA;
  --c-ink:#0F172A;
  --c-text:#4A5468;
  --c-muted:#8A94A6;
  --c-bg:#F5F7FB;
  --c-surface:#FFFFFF;
  --c-border:#E5E9F2;
  --c-success:#12A150;
  --r-card:16px;
  --r-img:12px;
  --r-btn:10px;
  --r-pill:999px;
  --sh-1:0 1px 2px rgba(15,23,42,.05),0 8px 24px rgba(15,23,42,.06);
  --sh-2:0 12px 32px rgba(29,99,237,.16);
  --sp-1:4px;--sp-2:8px;--sp-3:12px;--sp-4:16px;--sp-5:24px;--sp-6:32px;--sp-7:48px;--sp-8:64px;--sp-9:96px;
  --t-fast:150ms ease-out;
  --t-base:200ms ease-out;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  font-family:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:16px;line-height:1.8;color:var(--c-text);background:var(--c-bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border-radius:var(--r-img)}
a{color:var(--c-primary);text-decoration:none;transition:color var(--t-fast),opacity var(--t-fast)}
a:hover{color:var(--c-primary-deep)}
h1,h2,h3,h4,p,ul,ol,figure{margin:0}
ul,ol{padding:0;list-style:none}
button{font-family:inherit}
:focus-visible{outline:2px solid var(--c-primary);outline-offset:2px}
::selection{background:var(--c-primary);color:#fff}

/* ---------- Foundation 覆写 ---------- */
.grid-container{max-width:1240px;padding-left:24px;padding-right:24px;margin:0 auto}
.grid-container.full-bleed{max-width:100%;padding-left:0;padding-right:0}
.button,.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  background:var(--c-primary);color:#fff;border:1px solid var(--c-primary);
  border-radius:var(--r-btn);font-size:15px;font-weight:600;line-height:1;
  padding:0 22px;height:48px;cursor:pointer;transition:all var(--t-base);
}
.button:hover,.btn:hover{background:var(--c-primary-deep);border-color:var(--c-primary-deep);color:#fff;transform:translateY(-1px);box-shadow:var(--sh-2)}
.button:active,.btn:active{transform:translateY(1px);box-shadow:none}
.button.secondary,.btn-ghost{background:#fff;color:var(--c-primary);border:1px solid var(--c-border)}
.button.secondary:hover,.btn-ghost:hover{background:var(--c-primary-soft);border-color:var(--c-primary);color:var(--c-primary-deep)}
.btn-accent{background:var(--c-accent);border-color:var(--c-accent);color:#fff}
.btn-accent:hover{background:#E85C1E;border-color:#E85C1E;color:#fff}
.btn-sm{height:40px;padding:0 18px;font-size:14px}
.btn-block{width:100%}
.label,.badge{
  display:inline-block;border-radius:var(--r-pill);font-size:12px;line-height:1;
  padding:6px 12px;background:var(--c-primary-soft);color:var(--c-primary);font-weight:600;letter-spacing:.2px;
}
.badge-accent{background:var(--c-accent-soft);color:var(--c-accent)}
.badge-success{background:#E7F7EF;color:var(--c-success)}
.callout{background:#fff;border:1px solid var(--c-border);border-left:4px solid var(--c-primary);border-radius:var(--r-card);padding:20px 24px;color:var(--c-text)}
.breadcrumbs{margin:0;padding:0;background:none;border:0}
.breadcrumbs::before,.breadcrumbs::after{display:none}
.breadcrumbs li{font-size:13px;color:var(--c-muted);text-transform:none;letter-spacing:0}
.breadcrumbs li a{color:var(--c-muted)}
.breadcrumbs li a:hover{color:var(--c-primary)}
.breadcrumbs li.separator{color:#C3CAD8;padding:0 8px}
.breadcrumbs li.current{color:var(--c-ink);font-weight:600}
table{border-collapse:collapse;width:100%;margin:0}

/* ---------- 顶部标签条 ---------- */
.top-strip{background:var(--c-ink);color:#C9D2E3;font-size:13px;line-height:1}
.top-strip .strip-inner{display:flex;justify-content:space-between;align-items:center;gap:16px;min-height:40px;flex-wrap:wrap}
.top-strip a{color:#fff;font-weight:600}

/* ---------- Header ---------- */
.site-header{position:sticky;top:0;z-index:60;background:#fff;border-bottom:1px solid var(--c-border);transition:box-shadow var(--t-base)}
.site-header.is-scrolled{box-shadow:0 8px 24px rgba(15,23,42,.06)}
.header-inner{display:flex;align-items:center;justify-content:space-between;gap:24px;min-height:72px}
.brand{display:flex;align-items:center;gap:12px;color:var(--c-ink)}
.brand:hover{color:var(--c-ink)}
.brand-mark{
  width:40px;height:40px;flex:0 0 40px;border-radius:12px;background:var(--c-primary);color:#fff;
  display:flex;align-items:center;justify-content:center;font-weight:700;font-size:19px;
  box-shadow:0 6px 14px rgba(29,99,237,.28);
}
.brand-text{display:flex;flex-direction:column;line-height:1.2}
.brand-text b{font-size:17px;font-weight:700;letter-spacing:.2px}
.brand-text em{font-style:normal;font-size:10px;letter-spacing:1.6px;color:var(--c-muted);font-weight:600}
.nav-wrap{display:flex;align-items:center;gap:24px}
.nav-list{display:flex;align-items:center;gap:4px}
.nav-link{
  display:inline-block;padding:10px 14px;border-radius:var(--r-pill);color:var(--c-text);
  font-size:15px;font-weight:500;line-height:1.2;white-space:nowrap;transition:all var(--t-fast);
}
.nav-link:hover{color:var(--c-primary);background:var(--c-primary-soft)}
.nav-link.is-active{color:var(--c-primary);background:var(--c-primary-soft);font-weight:600}
.nav-toggle{
  display:none;width:44px;height:44px;border-radius:12px;background:#fff;border:1px solid var(--c-border);
  color:var(--c-ink);font-size:20px;cursor:pointer;transition:all var(--t-fast);
}
.nav-toggle:hover{background:var(--c-primary-soft);border-color:var(--c-primary);color:var(--c-primary)}

/* ---------- Hero ---------- */
.page-hero{background:#fff;border-bottom:1px solid var(--c-border);position:relative;overflow:hidden}
.page-hero::after{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:linear-gradient(rgba(15,23,42,.035) 1px,transparent 1px),linear-gradient(90deg,rgba(15,23,42,.035) 1px,transparent 1px);
  background-size:36px 36px;
}
.hero-inner{position:relative;z-index:2;display:grid;grid-template-columns:1.15fr .85fr;gap:48px;align-items:center;padding:56px 0 60px}
.hero-copy .breadcrumbs{margin-bottom:16px}
.hero-copy h1{font-size:46px;line-height:1.2;font-weight:700;color:var(--c-ink);letter-spacing:-.5px}
.hero-copy h1 span{color:var(--c-primary)}
.hero-sub{margin-top:16px;font-size:17px;color:var(--c-text);max-width:560px}
.hero-tags{display:flex;flex-wrap:wrap;gap:8px;margin-top:24px}
.hero-figure{position:relative;border-radius:20px;overflow:hidden;box-shadow:var(--sh-1)}
.hero-figure img{width:100%;height:280px;object-fit:cover;border-radius:20px}
.hero-figure .figure-badge{
  position:absolute;left:18px;bottom:18px;background:rgba(255,255,255,.95);border-radius:var(--r-pill);
  padding:8px 16px;font-size:13px;font-weight:600;color:var(--c-ink);box-shadow:var(--sh-1);
}

/* ---------- 通用板块 ---------- */
.section{padding:96px 0}
.section-tight{padding:64px 0}
.section-alt{background:#fff}
.section-blue{background:var(--c-primary-soft)}
.section-ink{background:var(--c-ink)}
.section-head{max-width:760px;margin-bottom:48px}
.section-head h2{font-size:32px;line-height:1.3;font-weight:700;color:var(--c-ink);position:relative;padding-left:16px}
.section-head h2::before{content:"";position:absolute;left:0;top:6px;bottom:6px;width:4px;border-radius:2px;background:var(--c-primary)}
.section-head p{margin-top:16px;font-size:16px;color:var(--c-text)}
.section-head.center{margin-left:auto;margin-right:auto;text-align:center}
.section-head.center h2{padding-left:0}
.section-head.center h2::before{left:50%;transform:translateX(-50%);top:auto;bottom:-14px;width:48px;height:4px}

/* ---------- 数据条 ---------- */
.stat-row{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;margin-top:8px}
.stat-card{background:#fff;border:1px solid var(--c-border);border-radius:var(--r-card);padding:28px 24px;box-shadow:var(--sh-1);transition:all var(--t-base)}
.stat-card:hover{transform:translateY(-4px);box-shadow:var(--sh-2)}
.stat-num{font-size:36px;font-weight:700;color:var(--c-primary);line-height:1.1;font-variant-numeric:tabular-nums}
.stat-label{margin-top:8px;font-size:14px;color:var(--c-muted)}

/* ---------- 时间轴步骤流 ---------- */
.timeline{position:relative;margin-top:8px}
.timeline::before{content:"";position:absolute;left:23px;top:12px;bottom:24px;width:2px;background:linear-gradient(to bottom,var(--c-primary),#BFD2FA);border-radius:2px}
.timeline-item{position:relative;display:grid;grid-template-columns:48px 1fr;gap:24px;padding-bottom:32px}
.timeline-item:last-child{padding-bottom:0}
.timeline-node{
  width:48px;height:48px;border-radius:50%;background:#fff;border:2px solid var(--c-primary);color:var(--c-primary);
  display:flex;align-items:center;justify-content:center;font-weight:700;font-size:15px;
  font-variant-numeric:tabular-nums;box-shadow:0 6px 16px rgba(29,99,237,.14);z-index:2;
}
.timeline-item.is-first .timeline-node{background:var(--c-primary);color:#fff}
.timeline-body{background:#fff;border:1px solid var(--c-border);border-radius:var(--r-card);padding:24px;box-shadow:var(--sh-1);transition:all var(--t-base)}
.timeline-body:hover{transform:translateY(-3px);box-shadow:var(--sh-2)}
.timeline-body h3{font-size:20px;font-weight:600;color:var(--c-ink);line-height:1.4}
.timeline-body p{margin-top:10px;font-size:15px;color:var(--c-text)}
.tick-list{margin-top:14px;display:grid;gap:8px}
.tick-list li{position:relative;padding-left:24px;font-size:14px;color:var(--c-text)}
.tick-list li::before{
  content:"\f00c";font-family:FontAwesome;position:absolute;left:0;top:1px;
  color:var(--c-primary);font-size:12px;
}

/* ---------- 对照表 ---------- */
.table-scroll{overflow-x:auto;border:1px solid var(--c-border);border-radius:var(--r-card);background:#fff;box-shadow:var(--sh-1)}
.spec-table{min-width:760px;font-size:15px}
.spec-table thead th{
  background:var(--c-primary-soft);color:var(--c-primary-deep);font-weight:700;font-size:14px;
  text-align:left;padding:16px 20px;border-bottom:1px solid var(--c-border);white-space:nowrap;
}
.spec-table tbody td{padding:16px 20px;border-bottom:1px solid var(--c-border);color:var(--c-text);vertical-align:top}
.spec-table tbody tr:nth-child(even){background:#FAFBFE}
.spec-table tbody tr:last-child td{border-bottom:0}
.spec-table tbody tr{transition:background var(--t-fast)}
.spec-table tbody tr:hover{background:var(--c-primary-soft)}
.spec-table td strong{color:var(--c-ink);font-weight:600}
.table-note{margin-top:16px;font-size:13px;color:var(--c-muted)}

/* ---------- 场馆卡片 ---------- */
.venue-grid{margin-top:8px}
.venue-card{
  height:100%;background:#fff;border:1px solid var(--c-border);border-radius:var(--r-card);
  overflow:hidden;box-shadow:var(--sh-1);transition:all var(--t-base);display:flex;flex-direction:column;
}
.venue-card:hover{transform:translateY(-4px);box-shadow:var(--sh-2)}
.venue-card .thumb{overflow:hidden}
.venue-card .thumb img{width:100%;height:190px;object-fit:cover;border-radius:0;transition:transform var(--t-base)}
.venue-card:hover .thumb img{transform:scale(1.03)}
.venue-card .body{padding:22px;display:flex;flex-direction:column;gap:12px;flex:1}
.venue-card h3{font-size:20px;font-weight:600;color:var(--c-ink);line-height:1.4}
.venue-card p{font-size:15px;color:var(--c-text)}
.venue-card .tag-row{display:flex;flex-wrap:wrap;gap:8px;margin-top:auto}
.text-link{font-size:15px;font-weight:600;color:var(--c-primary);display:inline-flex;align-items:center;gap:6px}
.text-link:hover{gap:10px}

/* ---------- 保障条 ---------- */
.guard-bar{display:grid;grid-template-columns:repeat(4,1fr);gap:24px}
.guard-item{display:flex;gap:14px;align-items:flex-start;background:#fff;border:1px solid var(--c-border);border-radius:var(--r-card);padding:22px;box-shadow:var(--sh-1);transition:all var(--t-base)}
.guard-item:hover{transform:translateY(-4px);box-shadow:var(--sh-2)}
.guard-icon{
  width:42px;height:42px;flex:0 0 42px;border-radius:12px;background:var(--c-primary-soft);color:var(--c-primary);
  display:flex;align-items:center;justify-content:center;font-size:18px;
}
.guard-item h4{font-size:16px;font-weight:600;color:var(--c-ink);line-height:1.4}
.guard-item p{font-size:14px;color:var(--c-text);margin-top:4px}

/* ---------- CTA ---------- */
.cta-band{
  position:relative;overflow:hidden;background:var(--c-primary);border-radius:20px;padding:48px;
  display:grid;grid-template-columns:1fr auto;gap:32px;align-items:center;color:#fff;
}
.cta-band::after{
  content:"";position:absolute;right:-40px;top:-40px;width:280px;height:280px;border-radius:50%;
  background:rgba(255,255,255,.08);
}
.cta-band h2{font-size:30px;line-height:1.3;font-weight:700;color:#fff;position:relative;z-index:2}
.cta-band p{margin-top:12px;font-size:16px;color:rgba(255,255,255,.88);max-width:620px;position:relative;z-index:2}
.cta-actions{display:flex;gap:12px;flex-wrap:wrap;position:relative;z-index:2}
.cta-band .btn{background:#fff;border-color:#fff;color:var(--c-primary-deep)}
.cta-band .btn:hover{background:var(--c-primary-deep);border-color:var(--c-primary-deep);color:#fff}
.cta-band .btn-outline{background:transparent;border:1px solid rgba(255,255,255,.6);color:#fff}
.cta-band .btn-outline:hover{background:#fff;border-color:#fff;color:var(--c-primary-deep)}

/* ---------- Footer ---------- */
.site-footer{background:var(--c-ink);color:#AEB8CB;padding:64px 0 0;margin-top:0}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:40px}
.footer-brand{display:flex;align-items:center;gap:10px;color:#fff;font-weight:700;font-size:17px;margin-bottom:16px}
.footer-col p{font-size:14px;line-height:1.9;color:#93A0B8}
.footer-col h4{font-size:15px;font-weight:700;color:#fff;margin-bottom:16px}
.footer-links{display:grid;gap:10px}
.footer-links a{color:#AEB8CB;font-size:14px}
.footer-links a:hover{color:#6E9BFF}
.footer-contact{display:grid;gap:12px}
.footer-contact li{display:flex;gap:10px;font-size:14px;color:#93A0B8;align-items:flex-start}
.footer-contact i{color:#6E9BFF;margin-top:5px}
.footer-bottom{
  margin-top:48px;border-top:1px solid rgba(255,255,255,.1);padding:22px 0;
  display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;font-size:13px;color:#8894AB;
}

/* ---------- 响应式 ---------- */
@media screen and (max-width:1023px){
  .grid-container{padding-left:20px;padding-right:20px}
  .header-inner{min-height:64px}
  .nav-toggle{display:inline-flex;align-items:center;justify-content:center}
  .nav-wrap{
    position:absolute;left:0;right:0;top:100%;background:#fff;border-bottom:1px solid var(--c-border);
    box-shadow:0 20px 32px rgba(15,23,42,.08);flex-direction:column;align-items:stretch;gap:8px;
    padding:16px 20px 22px;display:none;
  }
  .nav-wrap.is-open{display:flex}
  .nav-list{flex-direction:column;align-items:stretch;gap:4px}
  .nav-link{display:block;padding:12px 14px;border-radius:10px;font-size:16px}
  .nav-wrap .btn{width:100%}
  .hero-inner{grid-template-columns:1fr;gap:32px;padding:40px 0 48px}
  .hero-copy h1{font-size:36px}
  .section{padding:72px 0}
  .stat-row{grid-template-columns:repeat(3,1fr);gap:16px}
  .guard-bar{grid-template-columns:repeat(2,1fr)}
  .cta-band{grid-template-columns:1fr;padding:36px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
}
@media screen and (max-width:639px){
  .grid-container{padding-left:16px;padding-right:16px}
  .brand-text em{display:none}
  .brand-text b{font-size:15px}
  .hero-copy h1{font-size:30px}
  .hero-sub{font-size:16px}
  .hero-figure img{height:210px}
  .section{padding:56px 0}
  .section-head{margin-bottom:32px}
  .section-head h2{font-size:25px}
  .stat-row{grid-template-columns:1fr;gap:14px}
  .timeline::before{left:19px}
  .timeline-item{grid-template-columns:40px 1fr;gap:16px}
  .timeline-node{width:40px;height:40px;font-size:14px}
  .timeline-body{padding:18px}
  .guard-bar{grid-template-columns:1fr}
  .cta-band{padding:28px;border-radius:16px}
  .cta-band h2{font-size:24px}
  .cta-actions .btn{width:100%}
  .footer-grid{grid-template-columns:1fr}
  .footer-bottom{flex-direction:column;gap:8px}
}

/* roulang page: category4 */
/* ============ 设计变量 ============ */
:root{
  --c-primary:#1D63ED;
  --c-primary-deep:#0F47BF;
  --c-primary-soft:#E8F0FE;
  --c-accent:#FF6B2C;
  --c-accent-soft:#FFF2EA;
  --c-ink:#0F172A;
  --c-text:#4A5468;
  --c-muted:#8A94A6;
  --c-bg:#F5F7FB;
  --c-surface:#FFFFFF;
  --c-border:#E5E9F2;
  --c-success:#12A150;

  --radius-card:16px;
  --radius-img:12px;
  --radius-btn:10px;
  --radius-pill:999px;

  --shadow-1:0 1px 2px rgba(15,23,42,.05), 0 8px 24px rgba(15,23,42,.06);
  --shadow-2:0 12px 32px rgba(29,99,237,.16);

  --gap-1:4px;  --gap-2:8px;  --gap-3:12px;
  --gap-4:16px; --gap-5:24px; --gap-6:32px;
  --gap-7:48px; --gap-8:64px; --gap-9:96px;

  --container:1240px;
  --font-cn:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",Roboto,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-cn);
  font-size:16px;
  line-height:1.8;
  color:var(--c-text);
  background:var(--c-bg);
  -webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4,h5{margin:0;color:var(--c-ink);line-height:1.3;font-weight:700;}
p{margin:0;}
img{display:block;max-width:100%;height:auto;}
ul,ol{margin:0;padding:0;list-style:none;}
a{color:var(--c-primary);text-decoration:none;transition:color .18s ease,background-color .18s ease,border-color .18s ease;}
a:hover{color:var(--c-primary-deep);}
button{font-family:inherit;font-size:inherit;}
input,textarea,select{font-family:inherit;}
:focus-visible{outline:2px solid var(--c-primary);outline-offset:2px;}

/* ============ 容器 ============ */
.grid-container{max-width:var(--container);margin:0 auto;padding-left:24px;padding-right:24px;width:100%;}
@media (max-width:640px){
  .grid-container{padding-left:16px;padding-right:16px;}
}

/* ============ 按钮体系 ============ */
.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;line-height:1;letter-spacing:.01em;
  border:1px solid transparent;cursor:pointer;
  transition:transform .18s ease,background-color .18s ease,color .18s ease,border-color .18s ease,box-shadow .18s ease;
}
.btn:active{transform:translateY(1px);}
.btn-primary{background:var(--c-primary);color:#fff;}
.btn-primary:hover{background:var(--c-primary-deep);color:#fff;transform:translateY(-1px);box-shadow:var(--shadow-2);}
.btn-accent{background:var(--c-accent);color:#fff;}
.btn-accent:hover{background:#F0561A;color:#fff;transform:translateY(-1px);box-shadow:0 12px 32px rgba(255,107,44,.28);}
.btn-ghost{background:#fff;border-color:var(--c-border);color:var(--c-primary);}
.btn-ghost:hover{background:var(--c-primary-soft);border-color:#CBD9F7;color:var(--c-primary-deep);}
.btn-light-outline{background:transparent;border-color:rgba(255,255,255,.62);color:#fff;}
.btn-light-outline:hover{background:rgba(255,255,255,.14);border-color:#fff;color:#fff;}
.btn-sm{height:40px;padding:0 18px;font-size:14px;}
.btn-block{width:100%;}

/* ============ 标签 / 徽章 ============ */
.badge{
  display:inline-flex;align-items:center;gap:6px;
  padding:4px 12px;border-radius:var(--radius-pill);
  font-size:12px;font-weight:600;line-height:1.6;
  background:var(--c-primary-soft);color:var(--c-primary);
}
.badge-accent{background:var(--c-accent-soft);color:var(--c-accent);}
.badge-light{background:rgba(255,255,255,.16);color:#fff;border:1px solid rgba(255,255,255,.3);}
.tag-row{display:flex;flex-wrap:wrap;gap:8px;}

/* ============ 站点导航 ============ */
.site-header{
  position:sticky;top:0;z-index:60;background:#fff;
  border-bottom:1px solid var(--c-border);
  transition:box-shadow .22s ease;
}
.site-header.is-scrolled{box-shadow:0 8px 24px rgba(15,23,42,.06);}
.header-inner{display:flex;align-items:center;justify-content:space-between;gap:24px;height:72px;}
.brand{display:flex;align-items:center;gap:10px;}
.brand-mark{
  width:38px;height:38px;flex:0 0 38px;border-radius:11px;
  background:var(--c-primary);color:#fff;
  display:flex;align-items:center;justify-content:center;
  font-size:18px;font-weight:700;
}
.brand-text b{display:block;font-size:17px;font-weight:700;color:var(--c-ink);line-height:1.25;}
.brand-text em{display:block;font-style:normal;font-size:10px;letter-spacing:.16em;color:var(--c-muted);}
.nav-wrap{display:flex;align-items:center;gap:14px;}
.nav-list{display:flex;align-items:center;gap:2px;}
.nav-link{
  position:relative;display:block;padding:9px 13px;border-radius:8px;
  font-size:15px;font-weight:500;color:#3D4759;
}
.nav-link:hover{color:var(--c-primary);background:var(--c-primary-soft);}
.nav-link.is-active{color:var(--c-primary);font-weight:600;}
.nav-link.is-active::after{
  content:"";position:absolute;left:13px;right:13px;bottom:-1px;height:2px;
  border-radius:2px;background:var(--c-primary);
}
.nav-toggle{
  display:none;align-items:center;justify-content:center;
  width:42px;height:42px;border-radius:10px;
  border:1px solid var(--c-border);background:#fff;color:var(--c-ink);
  font-size:18px;cursor:pointer;
}
.nav-toggle:hover{background:var(--c-primary-soft);color:var(--c-primary);}

/* ============ 面包屑 ============ */
ul.breadcrumbs{
  margin:0 0 18px;padding:0;background:transparent;border:0;
}
ul.breadcrumbs li{font-size:13px;color:rgba(255,255,255,.72);}
ul.breadcrumbs li a{color:rgba(255,255,255,.85);}
ul.breadcrumbs li a:hover{color:#fff;text-decoration:underline;}
ul.breadcrumbs li::before{color:rgba(255,255,255,.45);}
ul.breadcrumbs li.current{color:#fff;font-weight:600;}

/* ============ Hero 通栏 ============ */
.page-hero{
  position:relative;color:#fff;
  padding:118px 0 86px;
  background-image:linear-gradient(rgba(15,23,42,.52),rgba(15,23,42,.66)),url("/assets/images/backpic/back-2.png");
  background-size:cover;background-position:center;background-repeat:no-repeat;
}
.page-hero::after{
  content:"";position:absolute;left:0;right:0;bottom:0;height:6px;
  background:linear-gradient(90deg,var(--c-primary) 0 62%,var(--c-accent) 62% 100%);
}
.page-hero h1{
  color:#fff;font-size:46px;line-height:1.22;font-weight:700;
  max-width:900px;letter-spacing:.01em;
}
.page-hero .hero-sub{
  margin-top:18px;max-width:760px;
  font-size:17px;line-height:1.75;color:rgba(255,255,255,.86);
}
.page-hero .hero-tags{margin-top:24px;display:flex;flex-wrap:wrap;gap:10px;}

/* ============ 板块 ============ */
.section{padding:96px 0;}
.section--surface{background:var(--c-surface);}
.section--soft{background:var(--c-bg);}
.section-head{max-width:800px;margin-bottom:48px;}
.section-head h2{
  position:relative;padding-left:18px;
  font-size:32px;line-height:1.32;
}
.section-head h2::before{
  content:"";position:absolute;left:0;top:6px;bottom:6px;width:4px;
  border-radius:2px;background:var(--c-primary);
}
.section-head p{margin-top:14px;font-size:16px;color:var(--c-text);}

/* ============ 双列图文 ============ */
.split{
  display:grid;grid-template-columns:1fr 1fr;
  gap:56px;align-items:center;
}
.split + .split{margin-top:84px;}
.split__media img{
  width:100%;border-radius:var(--radius-card);
  box-shadow:var(--shadow-1);
}
.split__text h3{font-size:24px;margin-bottom:16px;}
.split__text p + p{margin-top:16px;}
.split--reverse .split__media{order:-1;}
.check-list{margin-top:22px;}
.check-list li{
  position:relative;padding-left:32px;margin-top:12px;
  font-size:15px;line-height:1.75;color:var(--c-text);
}
.check-list li::before{
  content:"\f00c";font-family:FontAwesome;font-size:11px;
  position:absolute;left:0;top:6px;
  width:20px;height:20px;border-radius:50%;
  background:var(--c-primary-soft);color:var(--c-primary);
  display:flex;align-items:center;justify-content:center;
}

/* ============ 三栏特性条 ============ */
.feature-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;}
.feature{
  background:var(--c-surface);border:1px solid var(--c-border);
  border-radius:var(--radius-card);padding:30px 26px;
  box-shadow:var(--shadow-1);
  transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.feature:hover{transform:translateY(-4px);box-shadow:var(--shadow-2);border-color:#CBD9F7;}
.feature i{
  display:flex;align-items:center;justify-content:center;
  width:50px;height:50px;border-radius:14px;
  background:var(--c-primary-soft);color:var(--c-primary);font-size:21px;
}
.feature h3{font-size:20px;margin:18px 0 8px;}
.feature p{font-size:15px;color:var(--c-text);}

/* ============ 自查清单 ============ */
.check-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:20px;}
.check-card{
  display:flex;gap:16px;padding:22px;
  background:var(--c-surface);border:1px solid var(--c-border);
  border-radius:var(--radius-card);box-shadow:var(--shadow-1);
  transition:transform .2s ease,box-shadow .2s ease;
}
.check-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-2);}
.check-card .num{
  flex:0 0 38px;width:38px;height:38px;border-radius:11px;
  background:var(--c-primary-soft);color:var(--c-primary);
  font-weight:700;font-size:15px;
  display:flex;align-items:center;justify-content:center;
  font-variant-numeric:tabular-nums;
}
.check-card h3{font-size:17px;margin-bottom:6px;}
.check-card p{font-size:14px;line-height:1.75;color:var(--c-text);}

/* ============ FAQ ============ */
.faq-list{
  background:var(--c-surface);border:1px solid var(--c-border);
  border-radius:var(--radius-card);overflow:hidden;box-shadow:var(--shadow-1);
}
.faq-item + .faq-item{border-top:1px solid var(--c-border);}
.faq-item summary{
  list-style:none;cursor:pointer;
  display:flex;align-items:flex-start;justify-content:space-between;gap:20px;
  padding:22px 26px;
  font-size:16px;font-weight:600;color:var(--c-ink);line-height:1.6;
  transition:background-color .18s ease,color .18s ease;
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary:hover{background:#FAFBFE;color:var(--c-primary);}
.faq-item summary::after{
  content:"+";flex:0 0 auto;
  width:24px;height:24px;border-radius:50%;
  background:var(--c-primary-soft);color:var(--c-primary);
  font-size:16px;font-weight:700;line-height:22px;text-align:center;
  transition:transform .2s ease;
}
.faq-item[open] summary{color:var(--c-primary);}
.faq-item[open] summary::after{content:"−";transform:rotate(180deg);}
.faq-body{padding:0 26px 24px;font-size:15px;line-height:1.85;color:var(--c-text);}

/* ============ CTA 区 ============ */
.cta-band{
  position:relative;overflow:hidden;
  background:var(--c-primary);border-radius:20px;
  padding:56px;color:#fff;
  display:grid;grid-template-columns:1.5fr 1fr;gap:36px;align-items:center;
}
.cta-band::after{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:repeating-linear-gradient(135deg,rgba(255,255,255,.06) 0 12px,transparent 12px 26px);
}
.cta-band > *{position:relative;z-index:1;}
.cta-band h2{color:#fff;font-size:30px;line-height:1.35;}
.cta-band p{margin-top:14px;font-size:16px;color:rgba(255,255,255,.88);max-width:620px;}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px;justify-content:flex-end;}

/* ============ 页脚 ============ */
.site-footer{
  background:var(--c-ink);color:rgba(255,255,255,.72);
  padding:64px 0 0;margin-top:0;
}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.3fr;gap:40px;}
.footer-brand{
  display:flex;align-items:center;gap:10px;
  color:#fff;font-size:17px;font-weight:700;margin-bottom:16px;
}
.footer-col p{font-size:14px;line-height:1.85;color:rgba(255,255,255,.68);}
.site-footer h4{color:#fff;font-size:16px;margin-bottom:18px;}
.footer-links li{margin-bottom:11px;}
.footer-links a{font-size:14px;color:rgba(255,255,255,.72);}
.footer-links a:hover{color:#8FB2FF;}
.footer-contact li{
  display:flex;gap:10px;font-size:14px;margin-bottom:13px;
  color:rgba(255,255,255,.72);line-height:1.7;
}
.footer-contact i{color:#8FB2FF;margin-top:5px;flex:0 0 auto;}
.footer-bottom{
  margin-top:52px;padding:22px 0;
  border-top:1px solid rgba(255,255,255,.12);
  display:flex;justify-content:space-between;gap:12px;flex-wrap:wrap;
  font-size:13px;color:rgba(255,255,255,.55);
}

/* ============ 响应式 ============ */
@media (max-width:1023px){
  .header-inner{height:64px;}
  .nav-toggle{display:inline-flex;}
  .nav-wrap{
    display:none;
    position:absolute;left:0;right:0;top:100%;
    flex-direction:column;align-items:stretch;gap:10px;
    background:#fff;padding:14px 24px 22px;
    border-bottom:1px solid var(--c-border);
    box-shadow:0 16px 32px rgba(15,23,42,.10);
  }
  .nav-wrap.is-open{display:flex;}
  .nav-list{flex-direction:column;align-items:stretch;gap:2px;}
  .nav-link{padding:12px 10px;border-radius:10px;}
  .nav-link.is-active::after{left:10px;right:auto;width:22px;bottom:6px;}
  .nav-wrap .btn{margin-top:6px;width:100%;}

  .page-hero{padding:88px 0 64px;}
  .page-hero h1{font-size:36px;}
  .section{padding:72px 0;}
  .split{grid-template-columns:1fr;gap:32px;}
  .split--reverse .split__media{order:0;}
  .split + .split{margin-top:60px;}
  .feature-grid{grid-template-columns:1fr;}
  .check-grid{grid-template-columns:1fr;}
  .cta-band{grid-template-columns:1fr;padding:40px 32px;gap:26px;}
  .cta-actions{justify-content:flex-start;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
}

@media (max-width:640px){
  .header-inner{height:60px;}
  .brand-text b{font-size:15px;}
  .brand-text em{display:none;}
  .page-hero{padding:74px 0 54px;}
  .page-hero h1{font-size:30px;}
  .page-hero .hero-sub{font-size:15px;}
  .page-hero .hero-tags{gap:8px;}
  .section{padding:56px 0;}
  .section-head{margin-bottom:32px;}
  .section-head h2{font-size:24px;padding-left:14px;}
  .split__text h3{font-size:20px;}
  .feature{padding:24px 20px;}
  .check-card{padding:18px;}
  .faq-item summary{padding:18px 18px;font-size:15px;}
  .faq-body{padding:0 18px 20px;}
  .cta-band{border-radius:16px;padding:32px 22px;}
  .cta-band h2{font-size:22px;}
  .btn{width:100%;}
  .cta-actions{flex-direction:column;}
  .footer-grid{grid-template-columns:1fr;}
  .footer-bottom{flex-direction:column;}
}