/* roulang page: index */
:root{
  --primary:#115E8C;
  --primary-deep:#0B3F61;
  --primary-light:#E8F1F7;
  --accent:#F5A524;
  --accent-2:#FF6B2C;
  --bg:#F6F8FA;
  --card:#FFFFFF;
  --text:#1B2A33;
  --muted:#5D7280;
  --border:#E4EBF0;
  --weak:#F0F4F7;
  --success:#22A06B;
  --warn:#E2564B;
  --info:#2F80C4;
  --r-sm:8px;
  --r-md:12px;
  --r-lg:18px;
  --sh-quiet:0 6px 18px rgba(17,94,140,.06);
  --sh-hover:0 14px 32px rgba(11,63,97,.12);
  --sh-nav:0 8px 24px rgba(11,63,97,.08);
}
*{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  margin:0;
  font-family:"Noto Sans SC","PingFang SC","Microsoft YaHei",sans-serif;
  font-size:16px;
  line-height:1.8;
  color:var(--text);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}
img{max-width:100%;display:block;}
a{color:var(--primary);text-decoration:none;transition:color .2s ease;}
a:hover{color:var(--primary-deep);}
h1,h2,h3,h4{margin:0;color:var(--primary-deep);letter-spacing:-.2px;font-weight:600;}
p{margin:0;}
ul{margin:0;padding:0;list-style:none;}
button{font-family:inherit;}
:focus-visible{outline:2px solid var(--primary);outline-offset:2px;border-radius:4px;}

.container{max-width:1200px;margin:0 auto;padding-left:24px;padding-right:24px;}
@media (min-width:1440px){
  .container{max-width:1280px;}
}
.section{padding:96px 0;}
.section-tight{padding:64px 0;}
.section-head{margin-bottom:44px;max-width:760px;}
.section-head .eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;font-weight:500;color:var(--primary);
  background:var(--primary-light);border-radius:var(--r-sm);
  padding:5px 12px;margin-bottom:14px;letter-spacing:.02em;
}
.section-head h2{font-size:30px;line-height:1.4;font-weight:600;}
.section-head p{margin-top:16px;color:var(--muted);font-size:16px;}
.section-head--center{margin-left:auto;margin-right:auto;text-align:center;}

/* ============ 按钮 ============ */
.btn-x{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 28px;border-radius:var(--r-md);
  font-size:15px;font-weight:600;border:1px solid transparent;
  cursor:pointer;transition:transform .2s ease,box-shadow .2s ease,background .2s ease,color .2s ease,border-color .2s ease;
  white-space:nowrap;
}
.btn-x.lg{height:52px;padding:0 32px;font-size:16px;}
.btn-x.sm{height:36px;padding:0 18px;font-size:14px;}
.btn-primary-x{background:var(--accent);color:#241703;box-shadow:0 6px 16px rgba(245,165,36,.28);}
.btn-primary-x:hover{background:linear-gradient(135deg,var(--accent),var(--accent-2));color:#241703;transform:translateY(-1px);box-shadow:0 12px 26px rgba(255,107,44,.3);}
.btn-outline-x{background:#fff;color:var(--primary);border-color:rgba(17,94,140,.4);}
.btn-outline-x:hover{background:var(--primary-light);color:var(--primary-deep);border-color:rgba(17,94,140,.6);transform:translateY(-1px);}
.btn-ghost-x{
  background:transparent;color:var(--primary);border:0;padding:0 4px;height:auto;
  font-size:15px;font-weight:600;display:inline-flex;align-items:center;gap:8px;
}
.btn-ghost-x i{transition:transform .2s ease;}
.btn-ghost-x:hover{color:var(--primary-deep);}
.btn-ghost-x:hover i{transform:translateX(4px);}
.btn-x[disabled],.btn-x.is-disabled{opacity:.45;box-shadow:none;pointer-events:none;}

/* ============ 导航 ============ */
.site-header{
  position:fixed;top:0;left:0;right:0;z-index:1030;
  background:rgba(255,255,255,.62);
  backdrop-filter:blur(14px) saturate(140%);
  -webkit-backdrop-filter:blur(14px) saturate(140%);
  border-bottom:1px solid rgba(255,255,255,.6);
  box-shadow:var(--sh-nav);
  transition:background .22s ease,box-shadow .22s ease,border-color .22s ease;
}
.site-header.is-solid{
  background:#fff;
  border-bottom:1px solid var(--border);
  box-shadow:0 8px 24px rgba(11,63,97,.1);
}
.nav-inner{height:72px;display:flex;align-items:center;gap:24px;}
.logo{display:flex;align-items:center;gap:10px;flex-shrink:0;}
.logo-mark{
  width:34px;height:34px;border-radius:10px;background:var(--primary);
  display:grid;place-items:center;color:#fff;font-size:17px;font-weight:700;
  font-family:Inter,Roboto,"Noto Sans SC",sans-serif;
}
.logo-text{font-size:18px;font-weight:700;color:var(--primary-deep);letter-spacing:-.2px;}
.nav-links{display:flex;align-items:center;gap:4px;margin-left:12px;}
.nav-links a{
  position:relative;padding:8px 14px;font-size:15px;font-weight:500;
  color:#2b3f4c;border-radius:var(--r-sm);transition:color .2s ease,background .2s ease;
}
.nav-links a:hover{color:var(--primary);background:var(--primary-light);}
.nav-links a.active{color:var(--primary);font-weight:600;}
.nav-links a.active::after{
  content:"";position:absolute;left:14px;right:14px;bottom:2px;height:2px;
  background:var(--primary);border-radius:2px;
}
.nav-right{margin-left:auto;display:flex;align-items:center;gap:12px;}
.icon-btn{
  width:40px;height:40px;border-radius:var(--r-md);border:1px solid var(--border);
  background:#fff;color:var(--primary);display:grid;place-items:center;
  cursor:pointer;transition:background .2s ease,border-color .2s ease,color .2s ease;
}
.icon-btn:hover{background:var(--primary-light);border-color:rgba(17,94,140,.35);}
.nav-toggle{display:none;}
.mobile-drawer{
  position:fixed;inset:0;background:#fff;z-index:1050;
  transform:translateX(100%);transition:transform .28s ease;
  padding:18px 20px 32px;overflow-y:auto;
}
.mobile-drawer.open{transform:translateX(0);}
.drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:22px;}
.drawer-group-title{
  font-size:13px;font-weight:600;color:var(--muted);
  letter-spacing:.06em;margin:20px 0 8px;
}
.drawer-link{
  display:flex;align-items:center;justify-content:space-between;
  min-height:44px;padding:0 4px;font-size:16px;font-weight:500;
  color:var(--text);border-bottom:1px solid var(--border);
}
.drawer-link.active{color:var(--primary);font-weight:600;}
.drawer-cta{margin-top:26px;display:block;}
.drawer-cta .btn-x{width:100%;}

/* ============ Hero ============ */
.hero{
  position:relative;
  padding:148px 0 92px;
  background-image:url('/assets/images/backpic/back-1.webp');
  background-size:cover;
  background-position:center;
  overflow:hidden;
}
.hero::before{
  content:"";position:absolute;inset:0;
  background:linear-gradient(90deg,rgba(255,255,255,.92) 0%,rgba(255,255,255,.62) 52%,rgba(255,255,255,.2) 100%);
}
.hero .container{position:relative;z-index:2;}
.hero-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:56px;align-items:center;}
.hero-tag{
  display:inline-flex;align-items:center;gap:8px;background:#fff;
  border:1px solid var(--border);border-radius:999px;
  padding:6px 14px;font-size:13px;font-weight:500;color:var(--primary);
  box-shadow:var(--sh-quiet);margin-bottom:20px;
}
.hero-tag .dot{width:7px;height:7px;border-radius:50%;background:var(--success);}
.hero h1{font-size:40px;line-height:1.28;font-weight:700;margin-bottom:18px;}
.hero-sub{font-size:17px;color:#3c525f;max-width:520px;margin-bottom:28px;}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:30px;}
.hero-facts{display:flex;flex-wrap:wrap;gap:10px;}
.fact-chip{
  display:inline-flex;align-items:center;gap:8px;
  background:rgba(255,255,255,.85);border:1px solid var(--border);
  border-radius:var(--r-sm);padding:7px 12px;font-size:13px;color:var(--muted);
  font-weight:500;
}
.fact-chip i{color:var(--primary);font-size:13px;}
.fact-chip b{color:var(--primary-deep);font-weight:600;font-family:Inter,Roboto,sans-serif;font-size:13px;}
.hero-visual{position:relative;}
.hero-visual .shot-frame{
  border-radius:var(--r-lg);overflow:hidden;background:#fff;
  border:1px solid var(--border);box-shadow:0 24px 48px rgba(11,63,97,.16);
}
.hero-visual img{width:100%;aspect-ratio:4/3;object-fit:cover;}
.hero-visual .float-card{
  position:absolute;left:-22px;bottom:26px;background:#fff;
  border:1px solid var(--border);border-radius:var(--r-md);
  padding:14px 18px;box-shadow:var(--sh-hover);min-width:180px;
}
.hero-visual .float-card span{display:block;font-size:13px;color:var(--muted);}
.hero-visual .float-card strong{
  font-size:22px;color:var(--primary-deep);
  font-family:Inter,Roboto,sans-serif;font-weight:700;
}

/* ============ 信任条 ============ */
.trust-bar{background:#fff;border-top:1px solid var(--border);border-bottom:1px solid var(--border);}
.trust-grid{display:grid;grid-template-columns:repeat(4,1fr);}
.trust-item{
  display:flex;align-items:center;gap:14px;padding:26px 24px;
  border-right:1px solid var(--border);
}
.trust-item:last-child{border-right:0;}
.trust-item i{
  width:40px;height:40px;flex-shrink:0;border-radius:var(--r-md);
  background:var(--primary-light);color:var(--primary);
  display:grid;place-items:center;font-size:16px;
}
.trust-item strong{display:block;font-size:15px;font-weight:600;color:var(--primary-deep);}
.trust-item span{font-size:13px;color:var(--muted);}

/* ============ 截图轮播 ============ */
.shots-block{position:relative;}
.shots-wrap{position:relative;}
.shots{
  display:flex;gap:20px;overflow-x:auto;scroll-snap-type:x mandatory;
  padding:4px 2px 18px;scrollbar-width:none;
}
.shots::-webkit-scrollbar{display:none;}
.shot{
  flex:0 0 calc((100% - 40px) / 2.5);
  scroll-snap-align:start;background:#fff;border:1px solid var(--border);
  border-radius:var(--r-lg);overflow:hidden;box-shadow:var(--sh-quiet);
  transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.shot:hover{transform:translateY(-3px);box-shadow:var(--sh-hover);border-color:rgba(17,94,140,.3);}
.shot img{width:100%;aspect-ratio:16/9;object-fit:cover;}
.shot-body{padding:18px 20px 20px;}
.shot-body h3{font-size:17px;margin-bottom:6px;}
.shot-body p{font-size:14px;color:var(--muted);line-height:1.7;}
.shots-arrow{
  position:absolute;top:calc(50% - 40px);transform:translateY(-50%);
  width:44px;height:44px;border-radius:50%;border:1px solid var(--border);
  background:#fff;color:var(--primary);display:grid;place-items:center;
  cursor:pointer;box-shadow:var(--sh-quiet);z-index:3;
  transition:background .2s ease,box-shadow .2s ease;
}
.shots-arrow:hover{background:var(--primary-light);box-shadow:var(--sh-hover);}
.shots-arrow.prev{left:-16px;}
.shots-arrow.next{right:-16px;}
.shots-dots{display:flex;justify-content:center;gap:8px;margin-top:6px;}
.shots-dots button{
  width:8px;height:8px;border-radius:50%;border:0;padding:0;
  background:rgba(17,94,140,.22);cursor:pointer;transition:width .2s ease,background .2s ease;
}
.shots-dots button.active{width:22px;border-radius:4px;background:var(--primary);}

/* ============ 功能价值区 ============ */
.value-grid{display:grid;grid-template-columns:1fr 1fr;gap:56px;align-items:start;}
.value-media{border-radius:var(--r-lg);overflow:hidden;border:1px solid var(--border);box-shadow:var(--sh-quiet);position:sticky;top:104px;}
.value-media img{width:100%;aspect-ratio:4/3;object-fit:cover;}
.value-item{display:flex;gap:20px;padding:26px 0;border-bottom:1px solid var(--border);}
.value-item:last-child{border-bottom:0;}
.value-num{
  font-family:Inter,Roboto,sans-serif;font-size:34px;font-weight:700;
  color:rgba(17,94,140,.2);line-height:1;flex-shrink:0;width:60px;
}
.value-item h3{font-size:20px;margin-bottom:8px;}
.value-item p{color:var(--muted);font-size:15px;}
.value-item .mini-tags{display:flex;flex-wrap:wrap;gap:8px;margin-top:12px;}

/* ============ 标签 ============ */
.tag{
  display:inline-flex;align-items:center;
  background:var(--primary-light);color:var(--primary);
  font-size:13px;font-weight:500;border-radius:var(--r-sm);padding:4px 10px;
}
.tag-neutral{background:var(--weak);color:#3f5563;}
.badge-x{
  display:inline-flex;align-items:center;gap:6px;
  background:rgba(34,160,107,.12);color:var(--success);
  font-size:13px;font-weight:600;border-radius:var(--r-sm);padding:4px 10px;
}
.badge-x.warn{background:rgba(226,86,75,.12);color:var(--warn);}
.badge-x.info{background:rgba(47,128,196,.12);color:var(--info);}

/* ============ 系统要求 ============ */
.req-block{background:#fff;border:1px solid var(--border);border-radius:var(--r-lg);overflow:hidden;box-shadow:var(--sh-quiet);}
.req-grid{display:grid;grid-template-columns:1fr 1fr;}
.req-col{padding:32px;}
.req-col + .req-col{border-left:1px solid var(--border);background:var(--weak);}
.req-col h3{font-size:20px;display:flex;align-items:center;gap:10px;margin-bottom:20px;}
.req-row{
  display:flex;justify-content:space-between;gap:16px;
  padding:12px 14px;border-radius:var(--r-sm);font-size:14px;
}
.req-row:nth-child(odd){background:rgba(17,94,140,.045);}
.req-row span:first-child{color:var(--muted);flex-shrink:0;}
.req-row span:last-child{
  text-align:right;color:var(--primary-deep);font-weight:500;
  font-family:Inter,Roboto,"Noto Sans SC",sans-serif;
}
.req-note{margin-top:18px;font-size:13px;color:var(--muted);}

/* ============ 下载按钮组 ============ */
.download-panels{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;}
.dl-panel{
  background:var(--primary-light);border:1px solid rgba(17,94,140,.12);
  border-radius:var(--r-lg);padding:24px;
}
.dl-panel h3{
  font-size:15px;font-weight:600;color:var(--primary-deep);
  display:flex;align-items:center;gap:8px;margin-bottom:16px;
}
.dl-panel h3 i{color:var(--primary);}
.dl-btn{
  width:100%;display:flex;align-items:center;gap:12px;
  background:#fff;border:1px solid rgba(17,94,140,.28);
  border-radius:var(--r-md);padding:12px 14px;margin-bottom:10px;
  cursor:pointer;text-align:left;transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.dl-btn:last-child{margin-bottom:0;}
.dl-btn:hover{transform:translateY(-1px);box-shadow:0 8px 18px rgba(11,63,97,.1);border-color:rgba(17,94,140,.55);}
.dl-btn i{font-size:20px;color:var(--primary);width:24px;text-align:center;flex-shrink:0;}
.dl-btn .dl-text strong{display:block;font-size:14px;font-weight:600;color:var(--primary-deep);}
.dl-btn .dl-text em{display:block;font-style:normal;font-size:12px;color:var(--muted);font-family:Inter,Roboto,sans-serif;}
.dl-btn.primary-dl{background:var(--accent);border-color:var(--accent);}
.dl-btn.primary-dl i{color:#241703;}
.dl-btn.primary-dl:hover{background:linear-gradient(135deg,var(--accent),var(--accent-2));border-color:var(--accent-2);}

/* ============ 评价墙 ============ */
.review-wall{columns:2;column-gap:24px;}
.review{
  break-inside:avoid;margin-bottom:24px;background:#fff;border:1px solid var(--border);
  border-radius:var(--r-lg);padding:24px;box-shadow:var(--sh-quiet);
  transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.review:hover{transform:translateY(-3px);box-shadow:var(--sh-hover);border-color:rgba(17,94,140,.3);}
.review-head{display:flex;align-items:center;gap:12px;margin-bottom:14px;}
.avatar{
  width:40px;height:40px;border-radius:50%;flex-shrink:0;
  background:var(--primary-light);color:var(--primary);
  display:grid;place-items:center;font-weight:600;font-size:15px;
  font-family:Inter,Roboto,sans-serif;
}
.review-head .who strong{display:block;font-size:14px;font-weight:600;color:var(--primary-deep);}
.review-head .who span{font-size:12px;color:var(--muted);}
.stars{margin-left:auto;color:var(--accent);font-size:12px;letter-spacing:1px;}
.stars .off{color:rgba(245,165,36,.3);}
.review p{font-size:14px;color:#405663;line-height:1.8;}
.review .review-date{display:block;margin-top:12px;font-size:12px;color:var(--muted);}

/* ============ 资讯列表 ============ */
.news-head{display:flex;align-items:flex-end;justify-content:space-between;gap:20px;margin-bottom:36px;flex-wrap:wrap;}
.news-grid{display:grid;grid-template-columns:1.15fr 1fr;gap:24px;align-items:start;}
.news-main{
  display:grid;grid-template-columns:1fr;background:#fff;border:1px solid var(--border);
  border-radius:var(--r-lg);overflow:hidden;box-shadow:var(--sh-quiet);
  transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.news-main:hover{transform:translateY(-3px);box-shadow:var(--sh-hover);border-color:rgba(17,94,140,.3);}
.news-main-media{display:block;overflow:hidden;}
.news-main-media img{width:100%;aspect-ratio:16/9;object-fit:cover;transition:transform .2s ease-out;}
.news-main:hover .news-main-media img{transform:scale(1.03);}
.news-main-body{padding:28px 32px 32px;}
.news-main-body h3{font-size:22px;line-height:1.5;margin:12px 0 12px;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.news-main-body p{color:var(--muted);font-size:15px;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.news-side{display:grid;grid-template-columns:1fr 1fr;gap:20px;}
.news-card{
  position:relative;background:#fff;border:1px solid var(--border);border-radius:var(--r-lg);
  padding:22px;box-shadow:var(--sh-quiet);display:flex;flex-direction:column;
  transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.news-card:hover{transform:translateY(-3px);box-shadow:var(--sh-hover);border-color:rgba(17,94,140,.3);}
.news-card h3{font-size:16px;line-height:1.6;margin:12px 0 10px;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.news-card h3 a::after{content:"";position:absolute;inset:0;}
.news-card p{font-size:14px;color:var(--muted);
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.news-meta{
  margin-top:auto;padding-top:14px;display:flex;align-items:center;gap:12px;
  font-size:13px;color:var(--muted);font-family:Inter,Roboto,"Noto Sans SC",sans-serif;
}
.news-meta .sep{width:1px;height:12px;background:var(--border);}
.empty-state{
  background:#fff;border:1px dashed var(--border);border-radius:var(--r-lg);
  padding:56px 24px;text-align:center;
}
.empty-state i{font-size:34px;color:rgba(17,94,140,.3);}
.empty-state p{margin:16px 0 20px;color:var(--muted);font-size:15px;}

/* ============ FAQ ============ */
.faq-list{display:grid;gap:12px;max-width:860px;}
.faq-item{
  position:relative;background:#fff;border:1px solid var(--border);
  border-radius:var(--r-md);overflow:hidden;
  transition:border-color .2s ease,box-shadow .2s ease;
}
.faq-item.open{border-color:rgba(17,94,140,.35);box-shadow:var(--sh-quiet);}
.faq-item.open::before{
  content:"";position:absolute;left:0;top:0;bottom:0;width:3px;background:var(--primary);
}
.faq-q{
  width:100%;background:transparent;border:0;text-align:left;
  padding:18px 22px;font-size:17px;font-weight:600;color:var(--primary-deep);
  display:flex;align-items:center;justify-content:space-between;gap:16px;cursor:pointer;
}
.faq-q i{font-size:14px;color:var(--primary);transition:transform .25s ease;flex-shrink:0;}
.faq-item.open .faq-q i{transform:rotate(180deg);}
.faq-a{
  max-height:0;overflow:hidden;transition:max-height .3s ease;
}
.faq-a-inner{padding:0 22px 20px;font-size:16px;color:#405663;line-height:1.8;}

/* ============ 底部 CTA ============ */
.cta-band{
  background:var(--primary-light);border:1px solid rgba(17,94,140,.12);
  border-radius:var(--r-lg);padding:44px 40px;
  display:flex;align-items:center;justify-content:space-between;gap:32px;flex-wrap:wrap;
}
.cta-band h2{font-size:26px;margin-bottom:10px;}
.cta-band p{color:var(--muted);font-size:15px;}
.cta-band .cta-actions{display:flex;gap:14px;flex-wrap:wrap;}

/* ============ 页脚 ============ */
.site-footer{background:var(--primary-deep);color:#fff;margin-top:96px;padding-top:64px;}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:40px;padding-bottom:48px;}
.footer-brand .logo-text{color:#fff;}
.footer-brand .logo-mark{background:rgba(255,255,255,.14);}
.footer-brand p{color:rgba(255,255,255,.72);font-size:14px;margin-top:18px;max-width:320px;line-height:1.8;}
.footer-col h4{font-size:14px;font-weight:600;color:#fff;margin-bottom:16px;letter-spacing:.02em;}
.footer-col a,.footer-col span{display:block;font-size:14px;color:rgba(255,255,255,.78);padding:5px 0;transition:color .2s ease,opacity .2s ease;}
.footer-col a:hover{color:#fff;}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.14);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,.62);
}

/* ============ 响应式 ============ */
@media (max-width:1199px){
  .shots-arrow.prev{left:-8px;}
  .shots-arrow.next{right:-8px;}
}
@media (max-width:991px){
  .nav-links{display:none;}
  .nav-toggle{display:grid;}
  .hero{padding:120px 0 72px;}
  .hero-grid{grid-template-columns:1fr;gap:40px;}
  .hero h1{font-size:32px;}
  .hero-visual .float-card{left:auto;right:16px;bottom:-18px;}
  .value-grid{grid-template-columns:1fr;gap:36px;}
  .value-media{position:static;}
  .trust-grid{grid-template-columns:1fr 1fr;}
  .trust-item:nth-child(2){border-right:0;}
  .trust-item:nth-child(1),.trust-item:nth-child(2){border-bottom:1px solid var(--border);}
  .req-grid{grid-template-columns:1fr;}
  .req-col + .req-col{border-left:0;border-top:1px solid var(--border);}
  .download-panels{grid-template-columns:1fr 1fr;}
  .news-grid{grid-template-columns:1fr;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
}
@media (max-width:767px){
  .container{padding-left:16px;padding-right:16px;}
  .section{padding:56px 0;}
  .section-tight{padding:44px 0;}
  .section-head h2{font-size:23px;}
  .hero{padding:104px 0 60px;}
  .hero h1{font-size:27px;}
  .hero-sub{font-size:15.5px;}
  .hero-actions{gap:10px;}
  .hero-actions .btn-x{flex:1 1 100%;}
  .shot{flex:0 0 100%;}
  .shots-arrow{display:none;}
  .review-wall{columns:1;}
  .news-side{grid-template-columns:1fr;}
  .download-panels{grid-template-columns:1fr;}
  .cta-band{padding:32px 24px;}
  .cta-band .cta-actions .btn-x{flex:1 1 100%;}
  .site-footer{margin-top:56px;padding-top:48px;}
  .footer-grid{grid-template-columns:1fr;gap:28px;padding-bottom:36px;}
  .footer-bottom{flex-direction:column;align-items:flex-start;}
}
@media (max-width:520px){
  .trust-grid{grid-template-columns:1fr;}
  .trust-item{border-right:0;border-bottom:1px solid var(--border);}
  .trust-item:last-child{border-bottom:0;}
  .value-num{width:48px;font-size:28px;}
  .req-col{padding:24px;}
}

/* roulang page: article */
:root{
  --brand:#115E8C;
  --brand-dark:#0B3F61;
  --brand-light:#E8F1F7;
  --amber:#F5A524;
  --orange:#FF6B2C;
  --bg:#F6F8FA;
  --card:#FFFFFF;
  --text:#1B2A33;
  --muted:#5D7280;
  --line:#E4EBF0;
  --soft:#F0F4F7;
  --ok:#22A06B;
  --warn:#E2564B;
  --info:#2F80C4;
  --r-s:8px;
  --r-m:12px;
  --r-l:18px;
  --sh-1:0 6px 18px rgba(17,94,140,.06);
  --sh-2:0 14px 32px rgba(11,63,97,.12);
  --sh-nav:0 8px 24px rgba(11,63,97,.08);
  --ease:200ms ease-out;
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  font-family:"Noto Sans SC","PingFang SC","Microsoft YaHei",sans-serif;
  font-size:16px;
  line-height:1.8;
  color:var(--text);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{max-width:100%;display:block;height:auto}
a{color:inherit;text-decoration:none;transition:color var(--ease)}
button,input{font-family:inherit}
h1,h2,h3,h4{margin:0;font-weight:600;color:var(--brand-dark);line-height:1.35}
p{margin:0}
ul,ol{margin:0;padding:0;list-style:none}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px}
@media (min-width:1440px){.container{max-width:1280px}}
@media (max-width:576px){.container{padding:0 16px}}
.section{padding:96px 0}
@media (max-width:768px){.section{padding:56px 0}}

/* ============ 导航 ============ */
.site-header{
  position:sticky;top:0;z-index:1040;
  background:rgba(255,255,255,.62);
  backdrop-filter:blur(14px) saturate(140%);
  -webkit-backdrop-filter:blur(14px) saturate(140%);
  border-bottom:1px solid rgba(255,255,255,.6);
  box-shadow:var(--sh-nav);
  transition:background 220ms ease,box-shadow 220ms ease,border-color 220ms ease;
}
.site-header.scrolled{background:#FFFFFF;border-bottom-color:var(--line);box-shadow:0 10px 26px rgba(11,63,97,.10)}
.nav-inner{display:flex;align-items:center;gap:24px;height:72px}
.logo{display:inline-flex;align-items:center;gap:10px;font-weight:700;color:var(--brand-dark);flex-shrink:0}
.logo-mark{
  width:34px;height:34px;border-radius:10px;background:var(--brand);color:#fff;
  display:inline-flex;align-items:center;justify-content:center;font-size:17px;font-weight:700;
  box-shadow:0 6px 14px rgba(17,94,140,.22);
}
.logo-text{font-size:17px;letter-spacing:.2px}
.nav-links{display:flex;align-items:center;gap:6px;margin-left:auto}
.nav-links a{position:relative;padding:8px 14px;border-radius:var(--r-s);font-size:15px;font-weight:500;color:var(--text)}
.nav-links a:hover{color:var(--brand);background:var(--brand-light)}
.nav-links a.active{color:var(--brand)}
.nav-links a.active::after{content:"";position:absolute;left:14px;right:14px;bottom:2px;height:2px;border-radius:2px;background:var(--brand)}
.nav-actions{display:flex;align-items:center;gap:12px}
.icon-btn{
  width:40px;height:40px;border-radius:10px;border:1px solid var(--line);background:#fff;
  color:var(--brand);display:inline-flex;align-items:center;justify-content:center;cursor:pointer;
  transition:border-color var(--ease),background var(--ease),color var(--ease);
}
.icon-btn:hover{border-color:var(--brand);background:var(--brand-light)}
.menu-toggle{display:none;width:40px;height:40px;border-radius:10px;border:1px solid var(--line);background:#fff;color:var(--brand-dark);align-items:center;justify-content:center;cursor:pointer}
.search-bar{background:#fff;border-bottom:1px solid var(--line);padding:12px 0}
.search-bar form{display:flex;align-items:center;gap:12px}
.search-bar i{color:var(--muted)}
.search-bar input{
  flex:1;height:48px;border:1px solid var(--line);border-radius:var(--r-m);padding:0 16px;
  font-size:15px;color:var(--text);background:#fff;outline:none;transition:border-color var(--ease),background var(--ease);
}
.search-bar input:focus{border-color:var(--brand);background:var(--brand-light)}
.drawer-backdrop{
  position:fixed;inset:0;background:rgba(11,63,97,.35);opacity:0;pointer-events:none;
  transition:opacity 250ms ease;z-index:1049;
}
.drawer-backdrop.open{opacity:1;pointer-events:auto}
.mobile-drawer{
  position:fixed;top:0;right:0;bottom:0;width:min(320px,86vw);background:#fff;z-index:1050;
  padding:24px 20px;overflow-y:auto;transform:translateX(100%);
  transition:transform 280ms ease;box-shadow:-10px 0 30px rgba(11,63,97,.16);
}
.mobile-drawer.open{transform:translateX(0)}
.drawer-close{position:absolute;top:16px;right:16px;width:36px;height:36px;border-radius:10px;border:1px solid var(--line);background:#fff;color:var(--brand-dark);cursor:pointer}
.drawer-title{font-size:15px;font-weight:700;color:var(--brand-dark);margin:26px 0 10px}
.mobile-drawer a{display:flex;align-items:center;min-height:44px;padding:0 12px;border-radius:10px;font-size:15px;font-weight:500}
.mobile-drawer a:hover,.mobile-drawer a.active{background:var(--brand-light);color:var(--brand)}
@media (max-width:991px){
  .nav-links{display:none}
  .nav-actions .btn,.nav-actions .icon-btn{display:none}
  .menu-toggle{display:inline-flex}
  .nav-inner{height:60px}
}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 28px;border-radius:var(--r-m);border:1px solid transparent;
  font-size:15px;font-weight:600;cursor:pointer;background:transparent;color:inherit;
  transition:transform var(--ease),box-shadow var(--ease),background var(--ease),color var(--ease),border-color var(--ease);
  white-space:nowrap;
}
.btn:focus-visible,.icon-btn:focus-visible,.menu-toggle:focus-visible,.drawer-close:focus-visible,
.nav-links a:focus-visible,.mobile-drawer a:focus-visible{
  outline:2px solid var(--brand);outline-offset:2px;box-shadow:none;
}
.btn-amber{background:var(--amber);color:#3A2A00}
.btn-amber:hover{background:linear-gradient(135deg,var(--amber),var(--orange));color:#fff;transform:translateY(-1px);box-shadow:0 12px 24px rgba(245,165,36,.32)}
.btn-line{background:#fff;border-color:rgba(17,94,140,.4);color:var(--brand)}
.btn-line:hover{background:var(--brand-light);border-color:var(--brand);transform:translateY(-1px)}
.btn-quiet{background:none;border:0;color:var(--brand);padding:0;height:auto;font-weight:600}
.btn-quiet i{transition:transform var(--ease)}
.btn-quiet:hover i{transform:translateX(4px)}
.btn-lg{height:52px;padding:0 32px}
.btn-sm{height:36px;padding:0 16px;font-size:14px;border-radius:10px}
.btn:disabled,.btn.disabled{opacity:.45;box-shadow:none;pointer-events:none}

/* ============ 通用元素 ============ */
.tag{
  display:inline-flex;align-items:center;height:26px;padding:0 10px;border-radius:var(--r-s);
  background:var(--brand-light);color:var(--brand);font-size:13px;font-weight:500;
}
.tag-neutral{background:var(--soft);color:var(--brand-dark)}
.badge{display:inline-flex;align-items:center;gap:6px;height:26px;padding:0 10px;border-radius:var(--r-s);font-size:13px;font-weight:500}
.badge-ok{background:rgba(34,160,107,.12);color:var(--ok)}
.badge-new{background:rgba(255,107,44,.12);color:var(--orange)}
.divider{height:1px;background:var(--line);border:0;margin:0}

/* ============ 文章头部 ============ */
.article-hero{
  position:relative;padding:52px 0 40px;
  background-image:linear-gradient(90deg,rgba(255,255,255,.95),rgba(255,255,255,.45)),
                   url('/assets/images/backpic/back-2.webp');
  background-size:cover;background-position:center;
  border-bottom:1px solid var(--line);
}
.breadcrumb-bar ol{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:14px;color:var(--muted)}
.breadcrumb-bar li{display:inline-flex;align-items:center;gap:8px}
.breadcrumb-bar li+li::before{content:"/";color:#B9CBD6}
.breadcrumb-bar a:hover{color:var(--brand);text-decoration:underline;text-underline-offset:3px}
.breadcrumb-bar .current{color:var(--brand-dark);font-weight:500}
.article-title{
  font-size:40px;font-weight:700;letter-spacing:-.2px;line-height:1.3;
  color:var(--brand-dark);margin:16px 0 18px;max-width:920px;
}
.article-meta{display:flex;flex-wrap:wrap;align-items:center;gap:12px;font-size:14px;color:var(--muted)}
.article-meta .sep{width:1px;height:14px;background:var(--line)}
@media (max-width:768px){
  .article-hero{padding:32px 0 26px}
  .article-title{font-size:27px;margin:12px 0 14px}
}

/* ============ 正文布局 ============ */
.article-layout{
  display:grid;grid-template-columns:minmax(0,1fr);gap:40px;
  max-width:780px;margin:0 auto;padding:56px 24px 0;
}
@media (min-width:1200px){
  .article-layout{grid-template-columns:minmax(0,780px) 300px;max-width:1160px;justify-content:center}
}
@media (max-width:768px){.article-layout{padding:36px 16px 0;gap:28px}}
.article-card{
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-l);
  box-shadow:var(--sh-1);padding:40px;
}
@media (max-width:768px){.article-card{padding:22px}}
.article-content{font-size:17px;line-height:1.9;color:var(--text);overflow-wrap:break-word}
.article-content > *:first-child{margin-top:0}
.article-content p{margin:0 0 1.2em}
.article-content h2{
  font-size:22px;font-weight:600;color:var(--brand-dark);
  margin:40px 0 16px;padding-left:14px;border-left:3px solid var(--brand);line-height:1.45;
}
.article-content h3{font-size:18px;font-weight:600;color:var(--brand-dark);margin:28px 0 12px}
.article-content a{color:var(--brand);text-decoration:underline;text-underline-offset:3px}
.article-content a:hover{color:var(--brand-dark)}
.article-content strong{font-weight:600;color:var(--brand-dark)}
.article-content img{border-radius:var(--r-m);margin:24px 0 8px;width:100%}
.article-content figure{margin:24px 0}
.article-content figcaption{font-size:14px;line-height:1.7;color:var(--muted);margin-top:8px;text-align:center}
.article-content ul{margin:0 0 1.2em}
.article-content ul li{position:relative;padding-left:20px;margin-bottom:8px}
.article-content ul li::before{
  content:"";position:absolute;left:2px;top:.72em;width:7px;height:7px;border-radius:2px;
  background:var(--brand);transform:rotate(45deg);
}
.article-content ol{padding-left:22px;list-style:decimal;margin:0 0 1.2em}
.article-content ol li{margin-bottom:8px}
.article-content blockquote{
  background:var(--brand-light);border-left:4px solid var(--brand);color:var(--brand-dark);
  padding:16px 20px;border-radius:0 var(--r-m) var(--r-m) 0;margin:24px 0;
}
.article-content blockquote p:last-child{margin-bottom:0}
.article-content code{
  font-family:"JetBrains Mono","SFMono-Regular",Consolas,monospace;font-size:.92em;
  background:var(--soft);border-radius:6px;padding:2px 6px;
}
.article-content pre{
  background:var(--soft);border-radius:var(--r-m);padding:16px 18px;overflow-x:auto;
  font-family:"JetBrains Mono","SFMono-Regular",Consolas,monospace;font-size:14px;line-height:1.7;margin:0 0 1.2em;
}
.article-content pre code{background:none;padding:0}
.article-content table{width:100%;border-collapse:collapse;font-size:15px;margin:0 0 1.4em}
.article-content th,.article-content td{border:1px solid var(--line);padding:10px 14px;text-align:left}
.article-content th{background:var(--soft);color:var(--brand-dark);font-weight:600}
@media (max-width:768px){
  .article-content{font-size:16px}
  .article-content table{display:block;overflow-x:auto;white-space:nowrap}
}
.empty-state{
  text-align:center;padding:48px 20px;color:var(--muted);
}
.empty-state i{font-size:38px;color:var(--brand-light);display:block;margin-bottom:14px}
.empty-state p{font-size:16px;margin-bottom:20px;color:var(--brand-dark)}

/* 文章尾部 */
.article-end{border-top:1px solid var(--line);margin-top:40px;padding-top:28px}
.next-grid{display:grid;grid-template-columns:1fr 1fr;gap:16px;margin-top:16px}
.next-card{
  display:block;background:#fff;border:1px solid var(--line);border-radius:var(--r-m);padding:18px 20px;
  transition:transform var(--ease),box-shadow var(--ease),border-color var(--ease);
}
.next-card:hover{transform:translateY(-3px);box-shadow:var(--sh-2);border-color:rgba(17,94,140,.3)}
.next-card .kicker{font-size:13px;color:var(--muted);display:block;margin-bottom:6px}
.next-card .title{font-size:16px;font-weight:600;color:var(--brand-dark)}
@media (max-width:768px){.next-grid{grid-template-columns:1fr}}

/* ============ 侧栏 ============ */
.article-side{display:none}
@media (min-width:1200px){
  .article-side{display:block;position:sticky;top:96px;align-self:start}
}
.side-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-l);
  box-shadow:var(--sh-1);padding:24px;margin-bottom:20px;
}
.side-card h3{font-size:16px;margin-bottom:14px}
.side-list a{
  display:flex;align-items:center;justify-content:space-between;gap:10px;
  min-height:42px;font-size:15px;color:var(--text);border-bottom:1px dashed var(--line);
}
.side-list li:last-child a{border-bottom:0}
.side-list a:hover{color:var(--brand)}
.side-list i{font-size:12px;color:var(--muted)}
.side-media{border-radius:var(--r-m);overflow:hidden;margin-bottom:14px;aspect-ratio:16/9;background:var(--soft)}
.side-media img{width:100%;height:100%;object-fit:cover}
.side-note{font-size:14px;color:var(--muted);margin-bottom:16px}

/* ============ CTA 横幅 ============ */
.cta-wrap{padding:72px 0 96px}
@media (max-width:768px){.cta-wrap{padding:48px 0 56px}}
.cta-band{
  background:var(--brand-light);border:1px solid var(--line);border-radius:var(--r-l);
  padding:32px;display:flex;flex-wrap:wrap;gap:24px;align-items:center;justify-content:space-between;
}
.cta-band h2{font-size:23px;margin-bottom:8px}
.cta-note{font-size:14px;color:var(--muted)}
.cta-actions{display:flex;flex-wrap:wrap;gap:12px}
@media (max-width:768px){
  .cta-band{padding:24px}
  .cta-band h2{font-size:20px}
  .cta-actions{width:100%}
  .cta-actions .btn{flex:1 1 auto}
}

/* ============ 页脚 ============ */
.site-footer{background:var(--brand-dark);color:#fff;padding:64px 0 24px;margin-top:8px}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:40px}
.footer-brand .logo{color:#fff;margin-bottom:16px}
.footer-brand .logo-mark{background:var(--amber);color:#3A2A00}
.footer-brand p{font-size:14px;line-height:1.8;color:rgba(255,255,255,.78);max-width:340px}
.footer-col h4{color:#fff;font-size:14px;font-weight:600;margin-bottom:16px}
.footer-col a,.footer-col span{display:block;font-size:14px;color:rgba(255,255,255,.78);margin-bottom:10px;transition:color var(--ease),opacity var(--ease)}
.footer-col a:hover{color:#fff}
.footer-bottom{
  margin-top:48px;padding-top:20px;border-top:1px solid rgba(255,255,255,.16);
  display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;font-size:13px;color:rgba(255,255,255,.66);
}
@media (max-width:991px){
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
}
@media (max-width:576px){
  .footer-grid{grid-template-columns:1fr}
  .site-footer{padding:44px 0 20px}
}

/* roulang page: category1 */
:root{
  --brand:#115E8C;
  --brand-dark:#0B3F61;
  --brand-light:#E8F1F7;
  --accent:#F5A524;
  --accent-strong:#FF6B2C;
  --bg:#F6F8FA;
  --card:#FFFFFF;
  --text:#1B2A33;
  --muted:#5D7280;
  --line:#E4EBF0;
  --weak:#F0F4F7;
  --success:#22A06B;
  --warn:#E2564B;
  --info:#2F80C4;
  --r-sm:8px;
  --r-md:12px;
  --r-lg:18px;
  --sh-quiet:0 6px 18px rgba(17,94,140,.06);
  --sh-hover:0 14px 32px rgba(11,63,97,.12);
  --sh-nav:0 8px 24px rgba(11,63,97,.08);
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:"Noto Sans SC","PingFang SC","Microsoft YaHei",-apple-system,"Segoe UI",Roboto,sans-serif;
  font-size:16px;
  line-height:1.8;
  color:var(--text);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border:0;}
a{color:inherit;text-decoration:none;}
h1,h2,h3,h4{margin:0;font-weight:600;letter-spacing:-.2px;color:var(--brand-dark);line-height:1.35;}
p{margin:0;}
button{font:inherit;border:0;background:none;cursor:pointer;color:inherit;}
ul{margin:0;padding:0;list-style:none;}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px;border-radius:6px;}

.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px;}
.section{padding:96px 0;}
.section-tight{padding:72px 0;}
.section-head{max-width:720px;margin-bottom:40px;}
.section-head h2{font-size:30px;margin-bottom:16px;}
.section-head p{color:var(--muted);font-size:16px;}
.eyebrow{
  display:inline-block;
  font-size:13px;
  font-weight:500;
  color:var(--brand);
  background:var(--brand-light);
  border-radius:var(--r-sm);
  padding:4px 12px;
  margin-bottom:16px;
  letter-spacing:.2px;
}

/* 导航 */
.site-header{
  position:sticky;top:0;z-index:1030;
  background:rgba(255,255,255,.62);
  -webkit-backdrop-filter:blur(14px) saturate(140%);
  backdrop-filter:blur(14px) saturate(140%);
  border-bottom:1px solid rgba(255,255,255,.6);
  box-shadow:var(--sh-nav);
  transition:background .22s ease,box-shadow .22s ease,border-color .22s ease;
}
.site-header.is-solid{
  background:#FFFFFF;
  border-bottom-color:var(--line);
  box-shadow:0 8px 24px rgba(11,63,97,.12);
}
.nav-wrap{display:flex;align-items:center;gap:28px;height:72px;}
.logo{display:inline-flex;align-items:center;gap:10px;font-weight:700;flex:0 0 auto;}
.logo-mark{
  width:34px;height:34px;border-radius:10px;background:var(--brand);
  color:#fff;display:grid;place-items:center;font-size:18px;font-weight:700;line-height:1;
}
.logo-text{font-size:17px;color:var(--brand-dark);letter-spacing:-.2px;}
.nav-links{display:flex;align-items:center;gap:8px;margin-left:8px;}
.nav-links a{
  position:relative;
  display:inline-flex;align-items:center;
  height:72px;padding:0 14px;
  font-size:15px;color:var(--muted);
  transition:color .2s ease;
}
.nav-links a::after{
  content:"";position:absolute;left:14px;right:14px;bottom:18px;height:2px;
  background:var(--brand);width:0;transition:width .22s ease-out;
}
.nav-links a:hover{color:var(--brand-dark);}
.nav-links a:hover::after{width:calc(100% - 28px);}
.nav-links a.active{color:var(--brand-dark);font-weight:600;}
.nav-links a.active::after{width:calc(100% - 28px);}
.nav-actions{display:flex;align-items:center;gap:12px;margin-left:auto;}
.icon-btn{
  width:40px;height:40px;border-radius:var(--r-md);
  display:grid;place-items:center;color:var(--brand);
  border:1px solid var(--line);background:#fff;
  transition:background .2s ease,border-color .2s ease;
}
.icon-btn:hover{background:var(--brand-light);border-color:rgba(17,94,140,.3);}
.menu-toggle{
  width:40px;height:40px;border-radius:var(--r-md);
  display:none;place-items:center;
  border:1px solid var(--line);background:#fff;
}
.menu-toggle span{
  display:block;width:18px;height:2px;background:var(--brand-dark);position:relative;
}
.menu-toggle span::before,
.menu-toggle span::after{
  content:"";position:absolute;left:0;width:18px;height:2px;background:var(--brand-dark);
}
.menu-toggle span::before{top:-6px;}
.menu-toggle span::after{top:6px;}

/* 按钮 */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:10px;
  border-radius:var(--r-md);
  font-weight:600;font-size:16px;
  padding:0 28px;height:48px;
  transition:transform .2s ease-out,box-shadow .2s ease-out,background .2s ease-out,color .2s ease-out,border-color .2s ease-out;
  white-space:nowrap;
}
.btn-lg{height:52px;font-size:17px;}
.btn-sm{height:36px;font-size:14px;padding:0 18px;}
.btn-primary{background:var(--accent);color:#1B2A33;box-shadow:0 6px 18px rgba(245,165,36,.28);}
.btn-primary:hover{
  background:linear-gradient(135deg,var(--accent) 0%,var(--accent-strong) 100%);
  transform:translateY(-1px);
  box-shadow:0 12px 26px rgba(255,107,44,.28);
}
.btn-outline{background:#fff;color:var(--brand);border:1px solid rgba(17,94,140,.4);}
.btn-outline:hover{background:var(--brand-light);transform:translateY(-1px);box-shadow:var(--sh-quiet);}
.btn-ghost{color:var(--brand);padding:0;height:auto;font-weight:600;background:none;box-shadow:none;}
.btn-ghost:hover{transform:none;text-decoration:underline;text-underline-offset:4px;}
.btn:disabled{opacity:.45;box-shadow:none;transform:none;}
.btn .arrow{font-size:15px;line-height:1;}

/* 分类页首屏 */
.page-hero{
  position:relative;
  padding:76px 0 84px;
  background-image:url("/assets/images/backpic/back-3.webp");
  background-size:cover;
  background-position:center;
  overflow:hidden;
}
.page-hero::before{
  content:"";
  position:absolute;inset:0;
  background:linear-gradient(90deg,rgba(255,255,255,.95) 0%,rgba(255,255,255,.82) 46%,rgba(255,255,255,.46) 100%);
}
.page-hero .container{position:relative;z-index:1;}
.page-hero-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:56px;align-items:center;}
.brand-line{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;font-weight:600;color:var(--brand);
  background:rgba(255,255,255,.8);
  border:1px solid var(--line);
  border-radius:var(--r-sm);
  padding:6px 12px;margin-bottom:20px;
}
.brand-line .dot{width:6px;height:6px;border-radius:50%;background:var(--success);display:inline-block;}
.page-hero h1{font-size:40px;font-weight:700;margin-bottom:16px;}
.page-hero .lead{font-size:17px;color:var(--muted);max-width:520px;margin-bottom:28px;}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:26px;}
.hero-facts{display:flex;flex-wrap:wrap;gap:10px;}
.fact{
  font-size:13px;font-weight:500;color:var(--brand-dark);
  background:rgba(255,255,255,.86);
  border:1px solid var(--line);
  border-radius:var(--r-sm);
  padding:6px 12px;
}
.hero-media{border-radius:var(--r-lg);overflow:hidden;box-shadow:var(--sh-hover);background:#fff;}
.hero-media img{width:100%;aspect-ratio:4/3;object-fit:cover;}
.hero-media figcaption{font-size:14px;color:var(--muted);padding:14px 18px;border-top:1px solid var(--line);}

/* 图文交错 */
.zigzag{display:grid;gap:64px;}
.zigzag-row{display:grid;grid-template-columns:1fr 1fr;gap:52px;align-items:center;}
.zigzag-row.reverse .zigzag-media{order:2;}
.zigzag-media{margin:0;border-radius:var(--r-lg);overflow:hidden;background:#fff;box-shadow:var(--sh-quiet);border:1px solid var(--line);}
.zigzag-media img{width:100%;aspect-ratio:16/10;object-fit:cover;transition:transform .25s ease-out;}
.zigzag-media:hover img{transform:scale(1.03);}
.zigzag-media figcaption{font-size:14px;color:var(--muted);padding:12px 18px;border-top:1px solid var(--line);}
.zigzag-text h2{font-size:30px;margin-bottom:16px;}
.zigzag-text p{color:var(--muted);margin-bottom:18px;max-width:52ch;}
.text-link{
  display:inline-flex;align-items:center;gap:8px;
  font-size:15px;font-weight:600;color:var(--brand);
  position:relative;
}
.text-link::after{
  content:"";position:absolute;left:0;bottom:-3px;height:1px;width:0;background:var(--brand);
  transition:width .22s ease-out;
}
.text-link:hover::after{width:100%;}

/* 规格参数块 */
.spec-panel{background:var(--weak);border:1px solid var(--line);border-radius:var(--r-lg);padding:32px;}
.spec-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:16px;}
.spec-item{background:var(--card);border:1px solid var(--line);border-radius:var(--r-md);padding:18px 20px;transition:box-shadow .2s ease-out,transform .2s ease-out;}
.spec-item:hover{box-shadow:var(--sh-quiet);transform:translateY(-2px);}
.spec-label{display:block;font-size:13px;color:var(--muted);margin-bottom:6px;}
.spec-value{display:block;font-size:18px;font-weight:600;color:var(--brand-dark);font-variant-numeric:tabular-nums;font-family:Inter,Roboto,"Noto Sans SC",sans-serif;}
.spec-note{margin-top:22px;font-size:14px;color:var(--muted);}

/* 异常速查列表 */
.check-list{display:grid;grid-template-columns:repeat(2,1fr);gap:14px 32px;}
.check-list li{
  position:relative;padding-left:26px;font-size:15px;color:var(--muted);
  border-bottom:1px solid var(--line);padding-bottom:14px;
}
.check-list li::before{
  content:"";position:absolute;left:0;top:9px;width:12px;height:7px;
  border-left:2px solid var(--brand);border-bottom:2px solid var(--brand);
  transform:rotate(-45deg);
}
.check-list li strong{color:var(--brand-dark);font-weight:600;}

/* FAQ */
.faq{display:grid;gap:12px;max-width:860px;}
.faq-item{
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-md);
  box-shadow:var(--sh-quiet);overflow:hidden;
  transition:box-shadow .2s ease-out,border-color .2s ease-out;
}
.faq-item:hover{border-color:rgba(17,94,140,.3);}
.faq-item.open{box-shadow:inset 3px 0 0 var(--brand),var(--sh-quiet);}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:20px 24px;font-size:17px;font-weight:600;color:var(--brand-dark);text-align:left;
}
.faq-icon{position:relative;width:16px;height:16px;flex:0 0 16px;}
.faq-icon::before,.faq-icon::after{
  content:"";position:absolute;background:var(--brand);border-radius:2px;transition:transform .25s ease;
}
.faq-icon::before{left:0;top:7px;width:16px;height:2px;}
.faq-icon::after{left:7px;top:0;width:2px;height:16px;}
.faq-item.open .faq-icon{transform:rotate(180deg);}
.faq-item.open .faq-icon::after{transform:scaleY(0);}
.faq-a{max-height:0;overflow:hidden;transition:max-height .28s ease;}
.faq-item.open .faq-a{max-height:320px;}
.faq-a p{padding:0 24px 20px;color:var(--muted);font-size:16px;}

/* 相关分类跳转 */
.link-cards{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;margin-bottom:36px;}
.link-card{
  display:block;background:var(--card);border:1px solid var(--line);border-radius:var(--r-md);
  padding:24px;box-shadow:var(--sh-quiet);
  transition:transform .2s ease-out,box-shadow .2s ease-out,border-color .2s ease-out;
}
.link-card:hover{transform:translateY(-3px);box-shadow:var(--sh-hover);border-color:rgba(17,94,140,.3);}
.link-card h3{font-size:20px;margin-bottom:10px;}
.link-card p{font-size:14px;color:var(--muted);margin-bottom:14px;}
.link-card .text-link{font-size:14px;}
.back-row{display:flex;gap:14px;flex-wrap:wrap;}

/* CTA 横幅 */
.cta-banner{
  position:relative;
  background-image:url("/assets/images/backpic/back-1.webp");
  background-size:cover;background-position:center;
  padding:80px 0;
}
.cta-banner::before{
  content:"";position:absolute;inset:0;
  background:linear-gradient(90deg,rgba(11,63,97,.92) 0%,rgba(11,63,97,.74) 100%);
}
.cta-banner .container{position:relative;z-index:1;}
.cta-inner{display:grid;grid-template-columns:1.1fr .9fr;gap:48px;align-items:center;}
.cta-text h2{color:#fff;font-size:30px;margin-bottom:14px;}
.cta-text p{color:rgba(255,255,255,.82);font-size:16px;max-width:46ch;}
.download-panel{
  background:rgba(255,255,255,.08);
  border:1px solid rgba(255,255,255,.22);
  border-radius:var(--r-lg);
  padding:24px;
  display:grid;gap:12px;
}
.dl-btn{
  display:flex;align-items:center;gap:14px;
  border-radius:var(--r-md);padding:12px 18px;height:64px;
  background:rgba(255,255,255,.1);
  border:1px solid rgba(255,255,255,.24);
  color:#fff;text-align:left;
  transition:background .2s ease,transform .2s ease-out;
}
.dl-btn:hover{background:rgba(255,255,255,.2);transform:translateY(-1px);}
.dl-btn.is-main{background:var(--accent);border-color:var(--accent);color:#1B2A33;}
.dl-btn.is-main:hover{background:linear-gradient(135deg,var(--accent) 0%,var(--accent-strong) 100%);}
.dl-icon{
  width:34px;height:34px;border-radius:10px;flex:0 0 34px;
  display:grid;place-items:center;font-size:13px;font-weight:700;
  background:rgba(255,255,255,.18);
}
.dl-btn.is-main .dl-icon{background:rgba(11,63,97,.14);}
.dl-meta{display:flex;flex-direction:column;line-height:1.4;}
.dl-meta strong{font-size:15px;font-weight:600;}
.dl-meta span{font-size:13px;opacity:.78;}
.cta-version{color:rgba(255,255,255,.72);font-size:13px;margin-top:12px;}

/* 页脚 */
.site-footer{background:var(--brand-dark);color:#fff;padding:72px 0 28px;}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:40px;}
.footer-brand .logo{margin-bottom:18px;}
.footer-brand .logo-mark{background:rgba(255,255,255,.14);}
.footer-brand .logo-text{color:#fff;}
.footer-brand p{font-size:14px;line-height:1.8;color:rgba(255,255,255,.78);max-width:38ch;}
.footer-col h4{font-size:14px;font-weight:600;color:#fff;margin-bottom:16px;}
.footer-col a,.footer-col span{
  display:block;font-size:14px;color:rgba(255,255,255,.78);margin-bottom:10px;
  transition:color .2s ease,opacity .2s ease;
}
.footer-col a:hover{color:#fff;opacity:1;}
.footer-bottom{
  margin-top:48px;padding-top:22px;
  border-top:1px solid rgba(255,255,255,.16);
  display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:13px;color:rgba(255,255,255,.66);
}

/* 响应式 */
@media (max-width:1199.98px){
  .container{max-width:1140px;}
}
@media (max-width:991.98px){
  .nav-wrap{height:60px;}
  .menu-toggle{display:grid;}
  .nav-links{
    position:fixed;left:0;right:0;top:60px;
    flex-direction:column;align-items:stretch;gap:0;
    background:#fff;border-bottom:1px solid var(--line);
    box-shadow:0 18px 32px rgba(11,63,97,.12);
    padding:8px 16px 16px;
    transform:translateY(-12px);opacity:0;visibility:hidden;
    transition:opacity .22s ease,transform .22s ease,visibility .22s;
  }
  .site-header.nav-open .nav-links{transform:none;opacity:1;visibility:visible;}
  .nav-links a{height:44px;padding:0;border-bottom:1px solid var(--line);}
  .nav-links a::after{left:0;right:auto;bottom:0;width:0;}
  .nav-links a.active::after{width:44px;}
  .nav-links a:hover::after{width:44px;}
  .page-hero-grid{grid-template-columns:1fr;gap:36px;}
  .page-hero h1{font-size:32px;}
  .zigzag-row{grid-template-columns:1fr;gap:28px;}
  .zigzag-row.reverse .zigzag-media{order:0;}
  .spec-grid{grid-template-columns:repeat(2,1fr);}
  .link-cards{grid-template-columns:1fr;}
  .cta-inner{grid-template-columns:1fr;gap:32px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
}
@media (max-width:767.98px){
  .container{padding:0 16px;}
  .section{padding:56px 0;}
  .section-tight{padding:48px 0;}
  .section-head h2{font-size:23px;}
  .page-hero{padding:52px 0 60px;}
  .page-hero h1{font-size:27px;}
  .page-hero .lead{font-size:16px;}
  .zigzag-text h2{font-size:23px;}
  .zigzag{gap:44px;}
  .spec-panel{padding:20px;}
  .spec-grid{grid-template-columns:1fr;}
  .check-list{grid-template-columns:1fr;}
  .faq-q{font-size:16px;padding:16px 18px;}
  .faq-a p{padding:0 18px 18px;font-size:15px;}
  .cta-text h2{font-size:23px;}
  .footer-grid{grid-template-columns:1fr;}
  .footer-bottom{flex-direction:column;gap:8px;}
  .btn{width:100%;}
  .hero-actions .btn,.back-row .btn{width:100%;}
  .btn-ghost{width:auto;}
}
@media (max-width:575.98px){
  .page-hero h1{font-size:25px;}
  .logo-text{font-size:15px;}
  .hero-facts{gap:8px;}
  .fact{font-size:12px;}
}

/* roulang page: category2 */
:root{
  --brand:#115E8C;
  --brand-deep:#0B3F61;
  --brand-soft:#E8F1F7;
  --accent:#F5A524;
  --accent-strong:#FF6B2C;
  --page:#F6F8FA;
  --card:#FFFFFF;
  --ink:#1B2A33;
  --muted:#5D7280;
  --line:#E4EBF0;
  --soft:#F0F4F7;
  --ok:#22A06B;
  --warn:#E2564B;
  --info:#2F80C4;
  --r-sm:8px;
  --r-md:12px;
  --r-lg:18px;
  --sh-card:0 6px 18px rgba(17,94,140,.06);
  --sh-hover:0 14px 32px rgba(11,63,97,.12);
  --sh-nav:0 8px 24px rgba(11,63,97,.08);
  --font-cn:"Noto Sans SC","PingFang SC","Microsoft YaHei",sans-serif;
  --font-num:"Inter","Roboto","Helvetica Neue",Arial,sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  font-family:var(--font-cn);
  font-size:16px;
  line-height:1.8;
  color:var(--ink);
  background:var(--page);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block}
a{color:var(--brand);text-decoration:none;transition:color .2s ease-out}
a:hover{color:var(--brand-deep)}
h1,h2,h3,h4{margin:0;font-weight:600;color:var(--brand-deep);letter-spacing:-.2px}
h1{font-size:40px;line-height:1.3;font-weight:700}
h2{font-size:30px;line-height:1.35}
h3{font-size:20px;line-height:1.45}
p{margin:0}
ul{margin:0;padding:0;list-style:none}
button{font-family:inherit}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px;border-radius:var(--r-sm)}
.container{padding-left:16px;padding-right:16px}
@media (min-width:768px){.container{padding-left:24px;padding-right:24px}}
@media (min-width:1200px){.container{max-width:1200px}}
@media (min-width:1440px){.container{max-width:1280px}}

/* ---------- 按钮 ---------- */
.btn{font-family:var(--font-cn);border-radius:var(--r-md);font-weight:600;font-size:16px;border:1px solid transparent;transition:all .2s ease-out;display:inline-flex;align-items:center;justify-content:center;gap:8px}
.btn-main{background:var(--accent);color:#1B2A33;height:48px;padding:0 28px;box-shadow:0 4px 12px rgba(245,165,36,.22)}
.btn-main:hover,.btn-main:focus{background:linear-gradient(135deg,var(--accent) 0%,var(--accent-strong) 100%);color:#1B2A33;transform:translateY(-1px);box-shadow:0 12px 24px rgba(245,165,36,.32)}
.btn-outline-brand{background:#fff;color:var(--brand);border:1px solid rgba(17,94,140,.4);height:48px;padding:0 26px}
.btn-outline-brand:hover{background:var(--brand-soft);border-color:var(--brand);color:var(--brand);transform:translateY(-1px)}
.btn-ghost-brand{background:transparent;color:var(--brand);padding:0;font-weight:600;height:auto;font-size:15px}
.btn-ghost-brand::after{content:"→";margin-left:8px;transition:transform .2s ease-out}
.btn-ghost-brand:hover{color:var(--brand-deep)}
.btn-ghost-brand:hover::after{transform:translateX(4px)}
.btn-lg{height:52px;padding:0 32px;font-size:17px}
.btn-sm{height:36px;padding:0 18px;font-size:14px}

/* ---------- 导航 ---------- */
.site-header{
  position:sticky;
  top:0;
  z-index:1030;
  background:rgba(255,255,255,.62);
  backdrop-filter:blur(14px) saturate(140%);
  -webkit-backdrop-filter:blur(14px) saturate(140%);
  border-bottom:1px solid rgba(255,255,255,.6);
  box-shadow:var(--sh-nav);
  transition:background .22s ease-out,box-shadow .22s ease-out,border-color .22s ease-out;
}
.site-header.is-scrolled{background:#fff;border-bottom-color:var(--line);box-shadow:0 10px 26px rgba(11,63,97,.10)}
.header-inner{display:flex;align-items:center;justify-content:space-between;gap:16px;height:72px}
.logo{display:flex;align-items:center;gap:10px}
.logo-mark{width:36px;height:36px;border-radius:10px;background:var(--brand);color:#fff;font-size:18px;font-weight:700;display:flex;align-items:center;justify-content:center;flex:0 0 auto}
.logo-text{font-size:18px;font-weight:700;color:var(--brand-deep);letter-spacing:-.2px;white-space:nowrap}
.nav-links{display:flex;align-items:center;gap:6px}
.nav-links a{position:relative;padding:8px 14px;font-size:15px;color:var(--ink);border-radius:var(--r-sm);transition:color .2s ease-out,background .2s ease-out}
.nav-links a::after{content:"";position:absolute;left:50%;bottom:2px;width:0;height:2px;border-radius:2px;background:var(--brand);transform:translateX(-50%);transition:width .22s ease-out}
.nav-links a:hover{color:var(--brand);background:rgba(17,94,140,.06)}
.nav-links a:hover::after{width:calc(100% - 28px)}
.nav-links a.active{color:var(--brand);font-weight:600}
.nav-links a.active::after{width:calc(100% - 28px)}
.header-actions{display:flex;align-items:center;gap:12px}
.icon-btn{width:40px;height:40px;border-radius:var(--r-sm);border:1px solid var(--line);background:#fff;color:var(--brand);display:flex;align-items:center;justify-content:center;transition:all .2s ease-out}
.icon-btn:hover{border-color:rgba(17,94,140,.3);background:var(--brand-soft)}
.icon-btn svg{width:18px;height:18px}
.drawer-toggle{display:none;width:44px;height:44px;border:1px solid var(--line);background:#fff;border-radius:var(--r-sm);flex-direction:column;align-items:center;justify-content:center;gap:4px}
.drawer-toggle span{display:block;width:18px;height:2px;background:var(--brand-deep);border-radius:2px}
.nav-drawer{background:#fff;width:300px}
.nav-drawer .offcanvas-header{border-bottom:1px solid var(--line);padding:16px 20px}
.drawer-close{width:36px;height:36px;border:1px solid var(--line);background:#fff;border-radius:var(--r-sm);font-size:20px;line-height:1;color:var(--brand-deep)}
.drawer-group{font-size:13px;font-weight:600;color:var(--muted);letter-spacing:.5px;margin:4px 0 10px}
.drawer-link{display:flex;align-items:center;min-height:44px;padding:0 12px;border-radius:var(--r-sm);color:var(--ink);font-size:16px}
.drawer-link:hover{background:var(--soft);color:var(--brand)}
.drawer-link.active{background:var(--brand-soft);color:var(--brand);font-weight:600}

/* ---------- Hero ---------- */
.page-hero{position:relative;overflow:hidden;display:flex;align-items:center;min-height:320px;padding:64px 0 96px}
.page-hero-bg{position:absolute;inset:0;background-image:url('/assets/images/backpic/back-2.webp');background-size:cover;background-position:center;background-repeat:no-repeat}
.page-hero-bg::after{content:"";position:absolute;inset:0;background:linear-gradient(90deg,rgba(255,255,255,.94) 0%,rgba(255,255,255,.86) 48%,rgba(255,255,255,.38) 100%)}
.page-hero-inner{position:relative;z-index:2;max-width:760px;margin:0 auto;text-align:center}
.crumb{display:inline-flex;align-items:center;gap:8px;font-size:14px;color:var(--muted);margin-bottom:18px}
.crumb a{color:var(--muted)}
.crumb a:hover{color:var(--brand)}
.crumb i{font-style:normal;color:#B9C7D1}
.eyebrow{display:inline-block;font-size:13px;font-weight:600;color:var(--brand);background:rgba(17,94,140,.10);border-radius:var(--r-sm);padding:4px 12px;margin-bottom:14px}
.page-hero h1{margin-bottom:16px}
.page-hero .lead{font-size:17px;color:#3C5563;max-width:640px;margin:0 auto 28px}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;justify-content:center}

/* ---------- 统计条 ---------- */
.stats-wrap{position:relative;z-index:5;margin-top:-52px}
.stats-panel{background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);box-shadow:var(--sh-card);display:grid;grid-template-columns:repeat(4,1fr);overflow:hidden}
.stat{padding:22px 24px;border-right:1px solid var(--line)}
.stat:last-child{border-right:0}
.stat-label{font-size:13px;color:var(--muted);margin-bottom:6px}
.stat-value{font-family:var(--font-num);font-size:22px;font-weight:700;color:var(--brand-deep);letter-spacing:-.2px}
.stat-value small{font-size:13px;font-weight:500;color:var(--muted);margin-left:6px;font-family:var(--font-cn)}

/* ---------- 板块 ---------- */
.section{padding:96px 0}
.section-alt{background:#fff;border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.section-head{max-width:720px;margin-bottom:44px}
.sec-num{font-family:var(--font-num);font-size:14px;font-weight:700;color:var(--accent-strong);letter-spacing:1px;display:block;margin-bottom:10px}
.section-head h2{margin-bottom:16px}
.section-head p{color:var(--muted);font-size:16px}
.section-head.center{margin-left:auto;margin-right:auto;text-align:center}

/* ---------- 卡片 ---------- */
.card-base{position:relative;background:var(--card);border:1px solid var(--line);border-radius:var(--r-lg);box-shadow:var(--sh-card);transition:transform .2s ease-out,box-shadow .2s ease-out,border-color .2s ease-out;overflow:hidden;height:100%}
.card-base:hover{transform:translateY(-3px);box-shadow:var(--sh-hover);border-color:rgba(17,94,140,.3)}
.card-media{overflow:hidden}
.card-media img{width:100%;aspect-ratio:16/9;object-fit:cover;transition:transform .2s ease-out}
.card-base:hover .card-media img{transform:scale(1.03)}
.card-body{padding:24px}
.card-body.lg{padding:32px}
.card-title{font-size:20px;font-weight:600;color:var(--brand-deep);line-height:1.45;margin-bottom:12px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.card-text{color:var(--muted);font-size:15px;line-height:1.8;display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden}
.card-meta{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-top:22px;padding-top:16px;border-top:1px solid var(--line);font-size:14px;color:var(--muted)}
.card-link-cover::after{content:"";position:absolute;inset:0;z-index:1}
.mini-card{display:flex;gap:18px;padding:24px;align-items:flex-start}
.mini-icon{width:44px;height:44px;flex:0 0 auto;border-radius:var(--r-md);background:var(--brand-soft);color:var(--brand);display:flex;align-items:center;justify-content:center;font-family:var(--font-num);font-weight:700;font-size:16px}
.mini-card h3{font-size:18px;margin-bottom:8px}
.mini-card p{color:var(--muted);font-size:15px;line-height:1.8}

/* ---------- 标签与徽章 ---------- */
.tag{display:inline-block;background:var(--brand-soft);color:var(--brand);font-size:13px;font-weight:500;padding:4px 10px;border-radius:var(--r-sm);line-height:1.5}
.tag-neutral{background:var(--soft);color:#3C5563}
.badge-soft{display:inline-block;font-size:13px;font-weight:600;padding:4px 10px;border-radius:var(--r-sm);line-height:1.5}
.badge-ok{background:rgba(34,160,107,.12);color:var(--ok)}
.badge-accent{background:rgba(245,165,36,.16);color:#8A5A05}
.chip-row{display:flex;flex-wrap:wrap;gap:10px;margin-top:26px}

/* ---------- 时间线 ---------- */
.timeline{margin-top:8px}
.tl-item{position:relative;display:flex;gap:20px;padding-bottom:34px}
.tl-item:last-child{padding-bottom:0}
.tl-item::before{content:"";position:absolute;left:23px;top:52px;bottom:2px;width:2px;background:var(--line)}
.tl-item:last-child::before{display:none}
.tl-num{width:48px;height:48px;flex:0 0 auto;border-radius:14px;background:var(--brand-soft);color:var(--brand);font-family:var(--font-num);font-weight:700;font-size:16px;display:flex;align-items:center;justify-content:center}
.tl-body h3{font-size:18px;margin-bottom:8px}
.tl-body p{color:var(--muted);font-size:15px}

/* ---------- 规格对照 ---------- */
.spec-panel{background:var(--soft);border:1px solid var(--line);border-radius:var(--r-lg);overflow:hidden;height:100%}
.spec-head{display:flex;align-items:center;gap:12px;padding:20px 24px;background:rgba(255,255,255,.7);border-bottom:1px solid var(--line)}
.spec-head strong{font-size:16px;color:var(--brand-deep)}
.spec-note{font-size:13px;color:var(--muted);margin-left:auto}
.spec-row{display:flex;align-items:center;justify-content:space-between;gap:16px;padding:14px 24px;border-bottom:1px solid rgba(228,235,240,.9);font-size:15px}
.spec-row:last-child{border-bottom:0}
.spec-row:nth-child(odd){background:rgba(255,255,255,.6)}
.spec-key{color:var(--muted)}
.spec-val{font-family:var(--font-num);font-weight:600;color:var(--brand-deep);text-align:right}
.spec-val.cn{font-family:var(--font-cn)}

/* ---------- FAQ ---------- */
.faq-acc .accordion-item{border:1px solid var(--line);border-radius:var(--r-md)!important;margin-bottom:12px;overflow:hidden;background:#fff;box-shadow:var(--sh-card)}
.faq-acc .accordion-button{font-size:17px;font-weight:600;color:var(--brand-deep);background:#fff;padding:18px 22px;box-shadow:none;line-height:1.6}
.faq-acc .accordion-button:not(.collapsed){color:var(--brand);background:#fff;box-shadow:inset 3px 0 0 var(--brand)}
.faq-acc .accordion-button:focus{box-shadow:inset 3px 0 0 var(--brand)}
.faq-acc .accordion-button::after{content:"+";background-image:none;width:auto;height:auto;font-size:22px;line-height:1;color:var(--brand);font-weight:400;margin-left:16px;transform:none;transition:transform .2s ease-out}
.faq-acc .accordion-button:not(.collapsed)::after{content:"−";transform:rotate(180deg)}
.faq-acc .accordion-body{padding:20px 22px;color:var(--muted);font-size:16px;line-height:1.8;border-top:1px solid var(--line)}

/* ---------- CTA ---------- */
.cta-band{background:var(--brand-soft);border:1px solid rgba(17,94,140,.12);border-radius:var(--r-lg);padding:40px;display:flex;align-items:center;justify-content:space-between;gap:28px}
.cta-band h2{font-size:26px;margin-bottom:10px}
.cta-band p{color:#3C5563;font-size:15px}
.cta-actions{display:flex;gap:14px;flex-wrap:wrap;flex:0 0 auto}
.version-line{font-family:var(--font-num);font-size:13px;color:var(--muted);margin-top:10px;display:block}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--brand-deep);color:#fff;padding:72px 0 32px;margin-top:96px}
.site-footer .logo-text{color:#fff}
.site-footer .logo-mark{background:rgba(255,255,255,.14)}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:40px}
.footer-brand p{color:rgba(255,255,255,.78);font-size:14px;line-height:1.8;margin-top:18px;max-width:340px}
.footer-col h4{font-size:14px;font-weight:600;color:#fff;margin-bottom:18px;letter-spacing:.4px}
.footer-col a,.footer-col span{display:block;font-size:14px;color:rgba(255,255,255,.78);margin-bottom:12px;transition:color .2s ease-out,opacity .2s ease-out}
.footer-col a:hover{color:#fff}
.footer-bottom{margin-top:48px;padding-top:24px;border-top:1px solid rgba(255,255,255,.16);display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;font-size:14px;color:rgba(255,255,255,.7)}

/* ---------- 响应式 ---------- */
@media (max-width:1199.98px){
  .section{padding:80px 0}
}
@media (max-width:991.98px){
  h1{font-size:32px}
  h2{font-size:26px}
  .nav-links{display:none}
  .header-cta-desktop{display:none}
  .drawer-toggle{display:flex}
  .section{padding:56px 0}
  .stats-panel{grid-template-columns:repeat(2,1fr)}
  .stat:nth-child(2){border-right:0}
  .stat:nth-child(1),.stat:nth-child(2){border-bottom:1px solid var(--line)}
  .cta-band{flex-direction:column;align-items:flex-start;padding:32px}
  .cta-actions{width:100%}
  .cta-actions .btn{flex:1 1 auto}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
}
@media (max-width:767.98px){
  .header-inner{height:60px}
  .logo-text{font-size:16px}
  .page-hero{min-height:280px;padding:48px 0 88px}
  .page-hero-bg::after{background:linear-gradient(180deg,rgba(255,255,255,.94) 0%,rgba(255,255,255,.82) 60%,rgba(255,255,255,.5) 100%)}
  h1{font-size:27px}
  h2{font-size:23px}
  .page-hero .lead{font-size:16px}
  .hero-actions .btn{width:100%}
  .stats-panel{grid-template-columns:1fr}
  .stat{border-right:0;border-bottom:1px solid var(--line)}
  .stat:last-child{border-bottom:0}
  .spec-row{flex-direction:column;align-items:flex-start;gap:4px}
  .spec-val{text-align:left}
  .card-body.lg{padding:24px}
  .footer-grid{grid-template-columns:1fr}
  .footer-bottom{flex-direction:column;gap:8px}
}