/* roulang page: index */
:root{
  --page-bg:#F4F8FA;
  --surface:#FFFFFF;
  --line:#D9E6EC;
  --primary:#126B85;
  --primary-deep:#0B4E63;
  --primary-dark:#083B4D;
  --accent:#1E9A94;
  --deep:#0A3B4A;
  --text:#14343E;
  --text-body:#425D66;
  --text-caption:#7A939B;
  --soft-bg:#EAF3F6;
  --radius-card:16px;
  --radius-btn:10px;
  --radius-tag:999px;
  --shadow-sm:0 1px 2px rgba(10,46,60,.04),0 6px 18px rgba(10,46,60,.05);
  --shadow-hover:0 2px 4px rgba(10,46,60,.05),0 16px 32px rgba(10,46,60,.09);
  --container:1200px;
  --header-h:72px;
  --transition:all .22s ease;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC",sans-serif;
  background:var(--page-bg);
  color:var(--text-body);
  line-height:1.75;
  font-size:16px;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;height:auto;display:block;}
a{color:inherit;text-decoration:none;}
ul,ol{margin:0;padding:0;list-style:none;}
button,input,select,textarea{font-family:inherit;font-size:inherit;}
.container{max-width:var(--container);margin:0 auto;padding-left:20px;padding-right:20px;}
::selection{background:rgba(18,107,133,.14);}
h1,h2,h3,h4,h5{
  color:var(--text);
  font-weight:700;
  line-height:1.3;
  margin:0 0 .6em;
}
.keyword-nowrap{white-space:nowrap;}
.text-center{text-align:center;}
.caption{color:var(--text-caption);font-size:14px;}

/* ===== Header ===== */
.site-header{
  position:sticky;
  top:0;
  z-index:80;
  background:rgba(255,255,255,.93);
  border-bottom:1px solid var(--line);
  backdrop-filter:blur(6px);
  -webkit-backdrop-filter:blur(6px);
  height:var(--header-h);
  display:flex;
  align-items:center;
}
.header-inner{
  display:flex;
  align-items:center;
  justify-content:space-between;
  width:100%;
  position:relative;
}
.brand-logo{
  display:inline-flex;
  align-items:center;
  gap:10px;
  flex-shrink:0;
}
.brand-mark{
  width:38px;height:38px;
  background:linear-gradient(135deg,var(--primary),var(--primary-deep));
  color:#fff;
  border-radius:12px;
  display:flex;align-items:center;justify-content:center;
  font-size:18px;font-weight:700;
  box-shadow:0 4px 12px rgba(11,78,99,.16);
}
.brand-text{
  color:var(--text);
  font-size:20px;
  font-weight:700;
  letter-spacing:.2px;
  white-space:nowrap;
}
.brand-text small{display:block;font-size:11px;font-weight:400;color:var(--text-caption);letter-spacing:1px;margin-top:-3px;}
.main-nav{
  display:flex;
  align-items:center;
  gap:30px;
  margin-left:auto;
}
.nav-list{
  display:flex;
  align-items:center;
  gap:4px;
}
.nav-list .nav-link{
  display:inline-block;
  padding:9px 16px;
  border-radius:var(--radius-btn);
  font-size:15px;
  color:var(--text-body);
  transition:var(--transition);
}
.nav-list .nav-link:hover{
  background:var(--soft-bg);
  color:var(--primary-deep);
}
.nav-list .nav-link.active{
  color:var(--primary-deep);
  background:rgba(18,107,133,.10);
  font-weight:600;
  box-shadow:inset 0 -2px 0 rgba(18,107,133,.35);
}
.mega-wrap{
  position:relative;
}
.quick-trigger{
  display:inline-flex;
  align-items:center;
  gap:7px;
  padding:8px 16px;
  border-radius:var(--radius-btn);
  font-size:14px;
  font-weight:600;
  border:1px solid var(--line);
  background:#fff;
  color:var(--primary-deep);
  cursor:pointer;
  transition:var(--transition);
  user-select:none;
}
.quick-trigger:hover,.site-header.mega-open .quick-trigger{
  border-color:var(--primary);
  background:var(--soft-bg);
  color:var(--primary-deep);
}
.quick-trigger .arrow{
  transition:transform .2s ease;
  font-size:13px;
}
.site-header.mega-open .arrow{
  transform:rotate(180deg);
}
.mega-panel{
  position:absolute;
  top:calc(100% + 14px);
  right:0;
  width:580px;
  background:#fff;
  border:1px solid var(--line);
  border-radius:18px;
  box-shadow:0 24px 54px rgba(10,46,60,.14);
  padding:22px;
  opacity:0;
  visibility:hidden;
  transform:translateY(10px);
  transition:var(--transition);
  z-index:90;
}
.site-header.mega-open .mega-panel,.mega-wrap:hover .mega-panel{
  opacity:1;
  visibility:visible;
  transform:translateY(0);
}
.mega-grid{
  display:grid;
  grid-template-columns:1fr 1.3fr .9fr;
  gap:20px;
}
.mega-heading{
  font-size:13px;
  font-weight:700;
  color:var(--text-caption);
  letter-spacing:.5px;
  padding-bottom:10px;
  border-bottom:1px solid var(--line);
  margin-bottom:12px;
}
.mega-list li{
  margin-bottom:10px;
}
.mega-list a{
  color:var(--text-body);
  font-size:14px;
  display:flex;
  align-items:center;
  gap:8px;
  transition:var(--transition);
}
.mega-list a:hover{
  color:var(--primary);
}
.mega-list a::before{
  content:"";
  width:5px;height:5px;
  border-radius:50%;
  background:var(--accent);
  flex-shrink:0;
}
.mega-news li{
  margin-bottom:11px;
  font-size:13px;
  line-height:1.5;
}
.mega-news a{
  color:var(--text-body);
  display:-webkit-box;
  -webkit-line-clamp:2;
  -webkit-box-orient:vertical;
  overflow:hidden;
  transition:var(--transition);
}
.mega-news a:hover{color:var(--primary-deep);}
.mega-cta{
  background:var(--deep);
  color:#fff;
  border-radius:14px;
  padding:18px;
  display:flex;
  flex-direction:column;
  align-items:flex-start;
  justify-content:center;
  min-height:130px;
  border-top:2px solid var(--accent);
}
.mega-cta p{
  font-size:13px;
  margin:0 0 10px;
  opacity:.82;
}
.mega-cta .btn{
  font-size:13px;
}
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  padding:11px 24px;
  border-radius:var(--radius-btn);
  font-size:15px;
  font-weight:600;
  border:1px solid transparent;
  cursor:pointer;
  transition:var(--transition);
  line-height:1.2;
}
.btn-primary{
  background:var(--primary-deep);
  color:#fff;
  border-color:var(--primary-deep);
  box-shadow:0 4px 14px rgba(11,78,99,.14);
}
.btn-primary:hover{
  background:var(--primary-dark);
  border-color:var(--primary-dark);
  box-shadow:0 8px 22px rgba(8,59,77,.2);
  transform:translateY(-1px);
}
.btn-primary:active{
  transform:translateY(0);
  box-shadow:none;
}
.btn-secondary{
  background:#fff;
  color:var(--primary-deep);
  border-color:var(--line);
}
.btn-secondary:hover{
  background:var(--soft-bg);
  border-color:var(--primary);
  color:var(--primary-deep);
}
.btn-white{
  background:#fff;
  color:var(--deep);
  border-color:#fff;
}
.btn-white:hover{
  background:#EAF5F9;
  color:var(--deep);
  transform:translateY(-1px);
}
.nav-toggle{
  display:none;
  width:44px;height:44px;
  background:transparent;
  border:1px solid var(--line);
  border-radius:10px;
  position:relative;
  cursor:pointer;
  z-index:95;
}
.nav-toggle span,.nav-toggle span::before,.nav-toggle span::after{
  content:"";
  position:absolute;
  left:11px;
  right:11px;
  height:2px;
  background:var(--text);
  border-radius:2px;
  transition:var(--transition);
}
.nav-toggle span{top:20px;}
.nav-toggle span::before{top:-6px;}
.nav-toggle span::after{top:6px;}
body.mobile-nav-open .nav-toggle span{
  background:transparent;
}
body.mobile-nav-open .nav-toggle span::before{
  top:0;transform:rotate(45deg);
}
body.mobile-nav-open .nav-toggle span::after{
  top:0;transform:rotate(-45deg);
}

/* ===== Hero ===== */
.hero{
  position:relative;
  background:
    linear-gradient(120deg,rgba(255,255,255,.94) 22%,rgba(232,244,247,.72)),
    url('/assets/images/backpic/back-1.png') center/cover no-repeat;
  padding:80px 0 70px;
  border-bottom:1px solid var(--line);
  overflow:hidden;
}
.hero::after{
  content:'';
  position:absolute;
  bottom:-120px;right:-80px;
  width:430px;height:430px;
  border-radius:50%;
  background:radial-gradient(circle, rgba(30,154,148,.12), transparent 68%);
  pointer-events:none;
}
.hero .grid-x{align-items:center;}
.hero-copy{
  position:relative;
  z-index:2;
  padding-right:20px;
}
.hero-eyebrow{
  display:inline-flex;
  align-items:center;
  gap:8px;
  font-size:14px;
  font-weight:600;
  color:var(--primary);
  background:rgba(18,107,133,.09);
  border:1px solid rgba(18,107,133,.14);
  padding:5px 14px;
  border-radius:var(--radius-tag);
  margin-bottom:18px;
}
.hero-eyebrow .dot{
  width:7px;height:7px;
  border-radius:50%;
  background:var(--accent);
  box-shadow:0 0 0 3px rgba(30,154,148,.14);
}
.hero h1{
  font-size:42px;
  line-height:1.28;
  margin-bottom:18px;
  max-width:620px;
  letter-spacing:.3px;
}
.hero h1 .accent-line{
  color:var(--primary-deep);
  position:relative;
}
.hero-desc{
  font-size:17px;
  color:var(--text-body);
  max-width:560px;
  margin-bottom:28px;
  line-height:1.85;
}
.hero-actions{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:14px;
  margin-bottom:20px;
}
.hero-note{
  display:flex;
  align-items:center;
  gap:8px;
  font-size:13px;
  color:var(--text-caption);
}
.hero-note i{
  font-style:normal;
  width:16px;height:16px;
  border-radius:50%;
  background:rgba(30,154,148,.13);
  color:var(--accent);
  display:inline-flex;
  align-items:center;
  justify-content:center;
  font-size:10px;
  font-weight:700;
}
.hero-card-wrap{
  position:relative;
  z-index:2;
  padding-left:12px;
}
.hero-status-card{
  background:#fff;
  padding:24px;
  border-radius:20px;
  border:1px solid #E9F0F2;
  box-shadow:0 18px 38px rgba(10,46,60,.10);
  max-width:400px;
  margin-left:auto;
}
.status-head{
  display:flex;
  align-items:center;
  justify-content:space-between;
  padding-bottom:14px;
  border-bottom:1px solid var(--line);
  margin-bottom:16px;
}
.status-brand{
  display:flex;
  align-items:center;
  gap:10px;
  font-size:15px;
  font-weight:700;
  color:var(--text);
}
.status-brand .mini-logo{
  width:32px;height:32px;
  background:linear-gradient(135deg,var(--primary),var(--primary-deep));
  color:#fff;
  border-radius:9px;
  display:flex;align-items:center;justify-content:center;
  font-size:13px;font-weight:700;
}
.status-state{
  display:flex;
  align-items:center;
  gap:6px;
  font-size:12px;
  font-weight:600;
  color:var(--accent);
  background:rgba(30,154,148,.09);
  padding:4px 10px;
  border-radius:var(--radius-tag);
}
.status-state::before{
  content:'';
  width:7px;height:7px;
  border-radius:50%;
  background:var(--accent);
}
.preview-screen{
  background:linear-gradient(145deg,#F8FCFD,#EFF6F9);
  border-radius:14px;
  padding:18px;
  border:1px dashed rgba(18,107,133,.18);
  margin-bottom:16px;
}
.preview-screen .shield-line{
  display:flex;
  align-items:center;
  gap:10px;
  font-size:14px;
  font-weight:600;
  color:var(--primary-deep);
  margin-bottom:12px;
}
.shield-icon{
  width:36px;height:36px;
  background:#fff;
  border-radius:10px;
  display:flex;align-items:center;justify-content:center;
  color:var(--primary);
  font-size:18px;
  box-shadow:var(--shadow-sm);
}
.screenbar{
  height:6px;
  background:#fff;
  border-radius:6px;
  margin-bottom:8px;
}
.screenbar.long{width:86%;}
.screenbar.mid{width:60%;}
.screenbar.short{width:42%;margin-bottom:0;}
.preview-status{
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:12px;
}
.preview-item{
  background:#fff;
  border-radius:12px;
  padding:12px 14px;
  border:1px solid var(--line);
}
.preview-item .pv-label{
  font-size:11px;
  color:var(--text-caption);
  margin-bottom:3px;
}
.preview-item .pv-value{
  font-size:14px;
  font-weight:700;
  color:var(--text);
}
.status-links{
  display:flex;
  justify-content:space-between;
  gap:10px;
  border-top:1px solid var(--line);
  padding-top:14px;
  font-size:13px;
  color:var(--primary);
}
.status-links a{transition:var(--transition);}
.status-links a:hover{color:var(--accent);}

/* ===== 信任摘要条 ===== */
.truststrip{
  background:#fff;
  border-bottom:1px solid var(--line);
  padding:34px 0;
}
.trust-grid{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:20px;
  flex-wrap:wrap;
}
.trust-num{
  display:flex;
  align-items:center;
  gap:12px;
}
.trust-num .num{
  font-size:28px;
  font-weight:800;
  line-height:1;
  color:var(--primary);
}
.trust-num .sep{
  width:1px;height:28px;
  background:var(--line);
}
.trust-num .label{
  font-size:14px;
  color:var(--text-body);
}
.trust-num .label strong{
  display:block;
  color:var(--text);
  font-weight:600;
}

/* ===== 通用 section ===== */
.section{
  padding:84px 0;
}
.section-head{
  max-width:720px;
  margin-bottom:42px;
}
.section-head .section-caption{
  display:inline-block;
  font-size:13px;
  font-weight:700;
  color:var(--primary);
  letter-spacing:1px;
  text-transform:uppercase;
  margin-bottom:10px;
}
.section-head h2{
  font-size:32px;
  line-height:1.35;
  margin-bottom:10px;
}
.section-head p{
  font-size:16px;
  color:var(--text-body);
  line-height:1.85;
}

/* ===== 三步上手 ===== */
.steps-section{
  background:var(--surface);
  border-bottom:1px solid var(--line);
}
.steps-wrap{
  display:flex;
  gap:0;
  margin-top:24px;
}
.step-block{
  flex:1;
  position:relative;
  padding:20px 34px 24px 24px;
}
.step-block + .step-block{
  border-left:1px dashed #C7D6DE;
}
.step-index{
  display:flex;
  align-items:baseline;
  gap:12px;
  margin-bottom:18px;
}
.step-index .big-num{
  font-size:46px;
  font-weight:800;
  line-height:.8;
  color:rgba(18,107,133,.20);
  font-style:normal;
  transition:var(--transition);
}
.step-block:hover .big-num{
  color:rgba(18,107,133,.52);
}
.step-index h3{
  font-size:20px;
  margin:0;
  padding-top:6px;
}
.step-block p{
  margin:0;
  font-size:15px;
  line-height:1.85;
}
.progress-line{
  display:flex;
  align-items:center;
  margin-top:26px;
  padding:0 20px;
}
.progress-line .unit{
  flex:1;
  height:2px;
  background:linear-gradient(90deg,var(--primary),var(--accent));
  opacity:.16;
}
.progress-line .dot{
  width:10px;height:10px;
  border-radius:50%;
  background:var(--primary);
  box-shadow:0 0 0 4px rgba(18,107,133,.12);
  margin:0 6px;
}

/* ===== 案例证明 ===== */
.case-section{
  background:#EAF3F6;
}
.case-item{
  background:#fff;
  border:1px solid var(--line);
  border-radius:20px;
  overflow:hidden;
  box-shadow:var(--shadow-sm);
  transition:var(--transition);
  margin-bottom:32px;
}
.case-item:hover{
  box-shadow:var(--shadow-hover);
  transform:translateY(-2px);
}
.case-item .grid-x{align-items:stretch;}
.case-image{
  position:relative;
  min-height:260px;
  background:#fff;
}
.case-image img{
  width:100%;height:100%;
  object-fit:cover;
  min-height:260px;
}
.case-image::after{
  content:'';
  position:absolute;
  inset:0;
  background:linear-gradient(145deg,transparent 55%,rgba(10,59,74,.16));
}
.case-body{
  padding:36px 40px;
  display:flex;
  flex-direction:column;
  justify-content:center;
}
.case-tag{
  display:inline-flex;
  align-self:flex-start;
  background:rgba(18,107,133,.09);
  color:var(--primary-deep);
  font-size:13px;
  font-weight:600;
  padding:4px 14px;
  border-radius:var(--radius-tag);
  margin-bottom:16px;
}
.case-body h3{
  font-size:22px;
  margin-bottom:12px;
}
.case-body > p{
  margin:0 0 20px;
  font-size:15px;
  line-height:1.85;
}
.case-metrics{
  display:flex;
  gap:16px;
  flex-wrap:wrap;
  margin-bottom:18px;
}
.metric{
  padding:10px 16px;
  background:#F8FCFD;
  border:1px solid var(--line);
  border-radius:12px;
  font-size:13px;
  color:var(--text-body);
}
.metric strong{
  display:block;
  font-size:16px;
  color:var(--primary-deep);
  margin-bottom:2px;
}
.case-detail{
  font-size:14px;
  font-weight:600;
  color:var(--primary);
  display:inline-flex;
  align-items:center;
  gap:6px;
}
.case-detail:hover{color:var(--accent);}
.case-detail .arrow{transition:transform .2s ease;}
.case-detail:hover .arrow{transform:translateX(4px);}

/* ===== 最新资讯 ===== */
.news-section{
  background:var(--surface);
}
.news-grid{
  display:flex;
  gap:32px;
}
.news-main{
  flex:0 0 58%;
  max-width:58%;
}
.news-side{
  flex:1;
  background:#FAFDFE;
  border:1px solid var(--line);
  border-radius:16px;
  padding:22px 20px;
}
.news-side-title{
  font-size:16px;
  font-weight:700;
  color:var(--text);
  padding-bottom:12px;
  border-bottom:1px solid var(--line);
  margin-bottom:14px;
  display:flex;
  align-items:center;
  gap:8px;
}
.news-side-title::before{
  content:'';
  width:5px;height:5px;
  background:var(--accent);
  border-radius:50%;
}
.news-featured{
  background:#fff;
  border:1px solid var(--line);
  border-radius:18px;
  padding:18px;
  box-shadow:var(--shadow-sm);
  align-items:center;
}
.news-featured-thumb{
  border-radius:14px;
  overflow:hidden;
  margin-bottom:0;
}
.news-featured-thumb img{
  width:100%;
  height:206px;
  object-fit:cover;
}
.news-featured-body{
  padding:10px 14px 10px 24px;
}
.news-featured-body .tag{
  display:inline-flex;
  background:rgba(18,107,133,.09);
  color:var(--primary-deep);
  padding:3px 12px;
  border-radius:var(--radius-tag);
  font-size:12px;
  font-weight:600;
  margin-bottom:10px;
}
.news-featured-body h3{
  font-size:20px;
  line-height:1.5;
  margin-bottom:8px;
}
.news-featured-body h3 a{
  transition:var(--transition);
}
.news-featured-body h3 a:hover{color:var(--primary);}
.news-featured-body p{
  display:-webkit-box;
  -webkit-line-clamp:2;
  -webkit-box-orient:vertical;
  overflow:hidden;
  font-size:14px;
  color:var(--text-body);
  line-height:1.8;
  margin-bottom:12px;
}
.news-date{
  font-size:13px;
  color:var(--text-caption);
}
.news-list-side li{
  display:flex;
  align-items:flex-start;
  gap:12px;
  padding:12px 0;
  border-bottom:1px solid #EAF0F3;
}
.news-list-side li:last-child{border-bottom:none;}
.news-list-side li time{
  font-size:12px;
  color:var(--text-caption);
  flex-shrink:0;
  padding-top:3px;
}
.news-list-side a{
  font-size:14px;
  color:var(--text-body);
  line-height:1.6;
  transition:var(--transition);
  display:-webkit-box;
  -webkit-line-clamp:2;
  -webkit-box-orient:vertical;
  overflow:hidden;
}
.news-list-side a:hover{color:var(--primary);}
.news-side .side-tags{
  display:flex;
  flex-wrap:wrap;
  gap:8px;
  padding-top:15px;
  border-top:1px solid var(--line);
  margin-top:12px;
}
.news-side .side-tags span{
  font-size:12px;
  background:#fff;
  border:1px solid var(--line);
  color:var(--text-caption);
  padding:2px 12px;
  border-radius:var(--radius-tag);
}
.news-more-head{
  margin-bottom:18px;
  display:flex;
  align-items:center;
  justify-content:space-between;
}
.news-more-head .more-link{
  font-size:14px;
  font-weight:600;
  color:var(--primary);
  transition:var(--transition);
}
.news-more-head .more-link:hover{color:var(--accent);}
.empty-state{
  border:1px dashed #C7D6DE;
  background:#F8FCFD;
  border-radius:16px;
  padding:28px;
  text-align:center;
  color:var(--text-caption);
  font-size:14px;
}

/* ===== FAQ ===== */
.faq-section{
  background:var(--page-bg);
}
.faq-list{
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:16px;
}
.faq-item{
  background:#fff;
  border:1px solid var(--line);
  border-radius:var(--radius-card);
  overflow:hidden;
  transition:var(--transition);
}
.faq-item:hover{
  border-color:#C4D9E2;
  box-shadow:var(--shadow-sm);
}
.faq-item summary{
  list-style:none;
  padding:22px 24px;
  font-size:16px;
  font-weight:700;
  color:var(--text);
  cursor:pointer;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:14px;
  transition:var(--transition);
}
.faq-item summary::-webkit-details-marker,
.faq-item summary::marker{
  display:none;
  content:"";
}
.faq-item summary::after{
  content:"+";
  font-size:24px;
  font-weight:400;
  line-height:1;
  color:var(--primary);
  flex-shrink:0;
  transition:transform .2s ease;
}
.faq-item[open] summary::after{
  content:"−";
}
.faq-item summary:hover{
  color:var(--primary-deep);
}
.faq-answer{
  padding:0 24px 22px;
  font-size:15px;
  line-height:1.85;
  color:var(--text-body);
  border-top:1px solid #EAF0F3;
  margin-top:0;
}
.faq-answer p{margin:14px 0 0;}
.faq-answer ul{
  list-style:disc;
  margin:10px 0 0 18px;
}
.faq-answer li{margin-bottom:4px;}

/* ===== CTA ===== */
.cta-section{
  background:var(--deep);
  position:relative;
  overflow:hidden;
  padding:56px 0;
  border-top:3px solid var(--accent);
}
.cta-section::before{
  content:'';
  position:absolute;
  right:-100px;top:-100px;
  width:350px;height:350px;
  border-radius:50%;
  border:52px solid rgba(255,255,255,.04);
  pointer-events:none;
}
.cta-inner{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:30px;
  flex-wrap:wrap;
  position:relative;
  z-index:2;
}
.cta-copy{
  color:#fff;
  max-width:600px;
}
.cta-copy h2{
  color:#fff;
  font-size:28px;
  margin-bottom:8px;
}
.cta-copy p{
  color:rgba(255,255,255,.78);
  margin:0;
  font-size:15px;
  line-height:1.8;
}

/* ===== Footer ===== */
.site-footer{
  background:#0B3440;
  color:#C4D4DB;
  padding:70px 0 0;
  font-size:14px;
}
.footer-grid{
  display:grid;
  grid-template-columns:1.6fr 1fr 1.2fr 1.4fr;
  gap:48px;
  padding-bottom:40px;
}
.footer-brand .brand-logo{
  margin-bottom:14px;
}
.footer-brand .brand-mark{
  background:linear-gradient(135deg,var(--accent),var(--primary));
}
.footer-brand .brand-text{
  color:#fff;
  font-size:19px;
}
.footer-brand p{
  color:#9FB8C2;
  font-size:14px;
  line-height:1.8;
  margin:12px 0 0;
  max-width:300px;
}
.footer-col h4{
  color:#fff;
  font-size:15px;
  margin:0 0 16px;
  font-weight:600;
  letter-spacing:.2px;
}
.footer-col ul li{
  margin-bottom:10px;
}
.footer-col ul a{
  color:#C4D4DB;
  transition:var(--transition);
}
.footer-col ul a:hover{
  color:#fff;
  padding-left:4px;
}
.footer-col .desc{
  color:#9FB8C2;
  font-size:13px;
  line-height:1.9;
}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.08);
  padding:20px 0;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  flex-wrap:wrap;
  color:#8CA7B2;
  font-size:13px;
}
.footer-bottom .copy-domain{
  color:#A9C6D1;
  font-weight:600;
}
.footer-bottom .team-links{
  display:flex;
  gap:22px;
}
.footer-bottom .team-links a{
  color:#8CA7B2;
  transition:var(--transition);
}
.footer-bottom .team-links a:hover{
  color:#fff;
}

/* ===== 响应式 ===== */
@media screen and (max-width:1023px){
  .nav-toggle{
    display:block;
  }
  .main-nav{
    position:fixed;
    top:var(--header-h);
    left:0;
    right:0;
    bottom:0;
    background:#fff;
    flex-direction:column;
    align-items:flex-start;
    gap:0;
    padding:24px;
    display:none;
    overflow-y:auto;
    z-index:90;
    box-shadow:0 20px 40px rgba(10,46,60,.08);
    border-top:1px solid var(--line);
  }
  body.mobile-nav-open .main-nav{
    display:flex;
  }
  .nav-list{
    flex-direction:column;
    align-items:stretch;
    width:100%;
    gap:4px;
  }
  .nav-list .nav-link{
    padding:14px 18px;
    font-size:17px;
    border-radius:12px;
  }
  .mega-wrap{
    width:100%;
    margin-top:16px;
  }
  .quick-trigger{
    width:100%;
    justify-content:space-between;
    padding:14px 18px;
  }
  .mega-panel{
    position:static;
    width:100%;
    opacity:1;
    visibility:visible;
    transform:none;
    box-shadow:none;
    margin-top:10px;
    border-radius:14px;
    display:none;
  }
  .site-header.mega-open .mega-panel{
    display:block;
    transform:none;
  }
  .mega-grid{
    grid-template-columns:1fr 1fr;
  }
  .mega-grid .mega-col:last-child{
    grid-column:1 / -1;
  }
  .hero{
    padding:60px 0 50px;
  }
  .hero h1{
    font-size:32px;
  }
  .hero-card-wrap{
    padding-left:0;
    margin-top:36px;
  }
  .hero-status-card{
    max-width:100%;
    margin-left:0;
  }
  .news-grid{
    flex-direction:column;
  }
  .news-main{
    flex:1 1 100%;
    max-width:100%;
  }
  .case-body{
    padding:28px;
  }
  .steps-wrap{
    flex-direction:column;
  }
  .step-block{
    padding:24px;
  }
  .step-block + .step-block{
    border-left:none;
    border-top:1px dashed #C7D6DE;
  }
  .progress-line{
    display:none;
  }
  .faq-list{
    grid-template-columns:1fr;
  }
  .footer-grid{
    grid-template-columns:1fr 1fr;
    gap:40px 30px;
  }
}
@media screen and (max-width:639px){
  .section{
    padding:52px 0;
  }
  .section-head{
    margin-bottom:28px;
  }
  .section-head h2{
    font-size:24px;
  }
  .hero{
    padding:42px 0 40px;
  }
  .hero h1{
    font-size:26px;
  }
  .hero-desc{
    font-size:15px;
  }
  .brand-text{
    font-size:17px;
  }
  .trust-grid{
    flex-direction:column;
    align-items:flex-start;
    gap:16px;
  }
  .mega-grid{
    grid-template-columns:1fr;
  }
  .mega-grid .mega-col:last-child{
    grid-column:auto;
  }
  .case-item .grid-x{
    flex-direction:column;
  }
  .case-image img,.case-image{
    min-height:198px;
  }
  .case-body{
    padding:22px;
  }
  .case-body h3{
    font-size:19px;
  }
  .news-featured-thumb img{
    height:160px;
  }
  .news-featured-body{
    padding:16px 2px 2px;
  }
  .faq-item summary{
    padding:17px 18px;
    font-size:15px;
  }
  .faq-answer{
    padding:0 18px 18px;
  }
  .cta-inner{
    flex-direction:column;
    align-items:flex-start;
  }
  .cta-copy h2{
    font-size:23px;
  }
  .footer-grid{
    grid-template-columns:1fr;
    gap:32px;
  }
  .footer-bottom{
    flex-direction:column;
    align-items:flex-start;
  }
  .hero-note{
    font-size:12px;
  }
  .status-links{
    flex-wrap:wrap;
  }
  .btn{
    padding:10px 18px;
    font-size:14px;
  }
}

/* roulang page: category1 */
:root{
    --primary:#126B85;
    --primary-deep:#0B4E63;
    --cta-dark:#0A3B4A;
    --accent:#1E9A94;
    --page-bg:#F4F8FA;
    --card-bg:#FFFFFF;
    --line:#D9E6EC;
    --title:#14343E;
    --body:#425D66;
    --muted:#7A939B;
    --white:#ffffff;
    --radius-card:16px;
    --radius-btn:10px;
    --radius-pill:999px;
    --shadow-card:0 1px 2px rgba(10,46,60,0.04),0 6px 18px rgba(10,46,60,0.05);
    --shadow-hover:0 2px 4px rgba(10,46,60,0.05),0 16px 32px rgba(10,46,60,0.09);
    --space-section:96px;
    --content-width:1200px;
    --transition:all .25s ease;
    --font-stack:"PingFang SC","Microsoft YaHei","Noto Sans SC",-apple-system,"Segoe UI",Roboto,sans-serif;
}
*,*::before,*::after{
    box-sizing:border-box;
}
html{
    scroll-behavior:smooth;
}
body{
    margin:0;
    font-family:var(--font-stack);
    background:var(--page-bg);
    color:var(--body);
    font-size:16px;
    line-height:1.75;
    -webkit-font-smoothing:antialiased;
}
img{
    max-width:100%;
    height:auto;
    display:block;
}
a{
    color:var(--primary);
    text-decoration:none;
    transition:var(--transition);
}
a:hover{
    color:var(--primary-deep);
}
a:focus-visible,
button:focus-visible,
[role="button"]:focus-visible{
    outline:2px solid rgba(18,107,133,.55);
    outline-offset:3px;
}
ul,ol,figure,p,h1,h2,h3,h4,h5,h6{
    margin:0;
    padding:0;
}
.container{
    max-width:var(--content-width);
    margin:0 auto;
    padding-left:24px;
    padding-right:24px;
}
.site-header{
    position:sticky;
    top:0;
    z-index:100;
    background:rgba(255,255,255,.94);
    border-bottom:1px solid var(--line);
    backdrop-filter:none;
    box-shadow:0 1px 14px rgba(10,46,60,.04);
}
.header-inner{
    display:flex;
    align-items:center;
    justify-content:space-between;
    height:76px;
    gap:22px;
}
.brand-logo{
    display:inline-flex;
    align-items:center;
    gap:10px;
    flex-shrink:0;
}
.brand-mark{
    width:36px;
    height:36px;
    border-radius:10px;
    background:var(--primary);
    color:#fff;
    font-weight:700;
    font-size:18px;
    display:flex;
    align-items:center;
    justify-content:center;
    line-height:1;
}
.brand-text{
    font-size:19px;
    font-weight:700;
    color:var(--title);
    white-space:nowrap;
    letter-spacing:.01em;
}
.main-nav{
    display:flex;
    align-items:center;
    gap:18px;
}
.nav-list{
    list-style:none;
    display:flex;
    align-items:center;
    gap:6px;
    margin:0;
}
.nav-link{
    display:inline-flex;
    align-items:center;
    justify-content:center;
    min-height:44px;
    padding:0 15px;
    font-size:15px;
    color:var(--body);
    border-radius:var(--radius-pill);
    white-space:nowrap;
    font-weight:500;
}
.nav-link:hover{
    color:var(--primary);
    background:rgba(18,107,133,.06);
}
.nav-link.active{
    color:var(--primary);
    background:rgba(18,107,133,.09);
    font-weight:600;
    position:relative;
}
.mega-wrap{
    position:relative;
}
.quick-trigger{
    display:inline-flex;
    align-items:center;
    gap:8px;
    min-height:44px;
    padding:0 18px;
    border-radius:var(--radius-pill);
    border:1px solid var(--line);
    background:#F7FAFC;
    color:var(--title);
    font-size:15px;
    font-weight:600;
    cursor:pointer;
    transition:var(--transition);
    user-select:none;
}
.quick-trigger:hover{
    border-color:var(--primary);
    color:var(--primary);
    background:#FFF;
}
.arrow{
    font-size:12px;
    transition:transform .2s;
}
.mega-wrap.open .arrow{
    transform:rotate(180deg);
}
.mega-panel{
    position:absolute;
    top:calc(100% + 12px);
    right:0;
    width:min(620px,90vw);
    background:var(--white);
    border:1px solid var(--line);
    border-radius:18px;
    padding:24px;
    box-shadow:0 20px 50px rgba(10,46,60,.15);
    opacity:0;
    visibility:hidden;
    transform:translateY(-8px);
    transition:opacity .2s ease, transform .2s ease, visibility .2s;
    z-index:200;
}
.mega-wrap.open .mega-panel{
    opacity:1;
    visibility:visible;
    transform:translateY(0);
}
.mega-grid{
    display:grid;
    grid-template-columns:1.2fr 1.4fr .9fr;
    gap:22px;
}
.mega-heading{
    font-size:14px;
    font-weight:700;
    color:var(--title);
    margin-bottom:12px;
}
.mega-list,
.mega-news{
    list-style:none;
    display:flex;
    flex-direction:column;
    gap:0;
}
.mega-list a,
.mega-news a{
    display:block;
    padding:6px 0;
    font-size:14px;
    color:var(--body);
    line-height:1.5;
}
.mega-list a:hover,
.mega-news a:hover{
    color:var(--primary);
    transform:translateX(3px);
}
.mega-cta{
    background:#EEF6F8;
    border:1px solid var(--line);
    border-radius:14px;
    padding:18px 16px;
    display:flex;
    flex-direction:column;
    gap:12px;
    align-items:flex-start;
}
.mega-cta p{
    font-size:14px;
    color:var(--title);
    line-height:1.6;
    font-weight:600;
}
.btn{
    display:inline-flex;
    align-items:center;
    justify-content:center;
    border-radius:var(--radius-btn);
    font-weight:600;
    cursor:pointer;
    border:1px solid transparent;
    transition:var(--transition);
    font-size:15px;
    line-height:1.4;
    min-height:48px;
    padding:0 24px;
}
.btn-sm{
    min-height:38px;
    padding:0 16px;
    font-size:14px;
}
.btn-main{
    background:var(--primary-deep);
    color:#fff;
}
.btn-main:hover{
    background:#083B4D;
    color:#fff;
    transform:translateY(-2px);
    box-shadow:0 8px 22px rgba(11,78,99,.28);
}
.btn-main:active{
    transform:translateY(0);
    box-shadow:none;
}
.btn-ghost{
    background:transparent;
    color:var(--primary);
    border-color:var(--primary);
}
.btn-ghost:hover{
    background:#EAF5F9;
    border-color:var(--primary-deep);
    color:var(--primary-deep);
}
.btn-white{
    background:#fff;
    color:var(--cta-dark);
}
.btn-white:hover{
    background:#EAF5F9;
    color:var(--cta-dark);
}
.nav-toggle{
    display:none;
    width:44px;
    height:44px;
    border:1px solid var(--line);
    border-radius:10px;
    background:transparent;
    cursor:pointer;
    align-items:center;
    justify-content:center;
    flex-direction:column;
    gap:5px;
    padding:0;
}
.nav-toggle span{
    display:block;
    width:20px;
    height:2px;
    background:var(--title);
    border-radius:4px;
    transition:var(--transition);
}
.nav-toggle.open span:nth-child(1){
    transform:translateY(7px) rotate(45deg);
}
.nav-toggle.open span:nth-child(2){
    opacity:0;
}
.cat-hero{
    background-color:var(--page-bg);
    background-image:linear-gradient(rgba(18,107,133,.10),rgba(18,107,133,.10)),url('/assets/images/backpic/back-2.png');
    background-size:cover;
    background-position:center;
    border-bottom:1px solid var(--line);
    padding:72px 0 64px;
    position:relative;
}
.cat-hero::after{
    content:'';
    position:absolute;
    inset:0;
    background:linear-gradient(90deg,rgba(244,248,250,.95),rgba(244,248,250,.6) 52%,rgba(244,248,250,.25));
    pointer-events:none;
}
.cat-hero .container{
    position:relative;
    z-index:2;
}
.breadcrumb{
    font-size:14px;
    color:var(--muted);
    margin-bottom:20px;
    display:flex;
    flex-wrap:wrap;
    gap:6px;
    align-items:center;
}
.breadcrumb a{
    color:var(--primary);
}
.breadcrumb .sep{
    color:#B4C9D0;
    margin:0 4px;
}
.cat-hero h1{
    font-size:40px;
    line-height:1.25;
    font-weight:700;
    color:var(--title);
    max-width:780px;
    letter-spacing:-.01em;
}
.cat-hero .lead{
    font-size:17px;
    line-height:1.85;
    color:var(--body);
    max-width:640px;
    margin-top:18px;
}
.hero-chip{
    display:inline-flex;
    align-items:center;
    border-radius:var(--radius-pill);
    background:rgba(18,107,133,.12);
    color:var(--primary-deep);
    font-size:13px;
    font-weight:600;
    padding:5px 14px;
    margin-bottom:14px;
}
.cat-hero-actions{
    margin-top:30px;
    display:flex;
    flex-wrap:wrap;
    gap:14px;
}
.hero-note{
    margin-top:18px;
    font-size:14px;
    color:var(--muted);
}
.hero-note i{
    color:var(--accent);
    font-style:normal;
}
.status-preview-card{
    margin-left:auto;
    max-width:420px;
    background:#fff;
    border:1px solid var(--line);
    border-radius:var(--radius-card);
    box-shadow:var(--shadow-card);
    padding:24px;
}
.status-preview-head{
    display:flex;
    align-items:center;
    justify-content:space-between;
    gap:12px;
    border-bottom:1px solid var(--line);
    padding-bottom:16px;
    margin-bottom:16px;
}
.status-preview-title{
    font-size:15px;
    font-weight:700;
    color:var(--title);
}
.status-preview-title small{
    display:block;
    font-size:13px;
    color:var(--muted);
    font-weight:400;
    margin-top:3px;
}
.status-dot{
    width:9px;
    height:9px;
    background:var(--accent);
    border-radius:50%;
    box-shadow:0 0 0 5px rgba(30,154,148,.14);
    flex-shrink:0;
}
.status-preview-body{
    padding:14px 0;
}
.status-item{
    display:flex;
    gap:12px;
    padding:7px 0;
    font-size:14px;
    color:var(--body);
    align-items:flex-start;
}
.status-item .dot-outline{
    width:18px;
    height:18px;
    flex-shrink:0;
    border-radius:50%;
    border:1px solid var(--line);
    background:#F7FAFC;
    display:flex;
    align-items:center;
    justify-content:center;
    margin-top:3px;
}
.status-item .dot-outline span{
    width:6px;
    height:6px;
    background:var(--primary);
    border-radius:50%;
    display:block;
}
.status-preview-foot{
    border-top:1px solid var(--line);
    padding-top:14px;
    margin-top:6px;
    display:flex;
    justify-content:space-between;
    flex-wrap:wrap;
    gap:8px;
}
.status-link{
    font-size:14px;
    color:var(--primary);
    font-weight:600;
}
.status-link:hover{
    color:var(--primary-deep);
}
.section-block{
    padding:80px 0;
}
.section-block.tint-bg{
    background:#EAF2F5;
}
.section-heading{
    margin-bottom:42px;
}
.section-kicker{
    font-size:14px;
    font-weight:700;
    color:var(--primary);
    letter-spacing:.08em;
    margin-bottom:8px;
}
.section-heading h2{
    font-size:32px;
    font-weight:700;
    color:var(--title);
    line-height:1.3;
}
.section-heading p:not(.section-kicker){
    color:var(--muted);
    margin-top:10px;
    max-width:620px;
    font-size:16px;
}
.grid-container{
    max-width:var(--content-width);
    margin:0 auto;
    padding-left:24px;
    padding-right:24px;
}
.grid-x{
    margin-left:-16px;
    margin-right:-16px;
}
.grid-x .cell{
    padding-left:16px;
    padding-right:16px;
}
.feature-card{
    background:var(--white);
    border:1px solid var(--line);
    border-radius:var(--radius-card);
    overflow:hidden;
    box-shadow:var(--shadow-card);
    transition:var(--transition);
    height:100%;
}
.feature-card:hover{
    box-shadow:var(--shadow-hover);
    transform:translateY(-4px);
}
.feature-card-media{
    aspect-ratio:16/9;
    overflow:hidden;
    background:#E9F1F4;
}
.feature-card-media img{
    width:100%;
    height:100%;
    object-fit:cover;
}
.feature-card-body{
    padding:30px;
}
.chip{
    display:inline-flex;
    align-items:center;
    background:rgba(18,107,133,.1);
    border:1px solid rgba(18,107,133,.18);
    color:var(--primary-deep);
    font-size:12px;
    font-weight:600;
    height:26px;
    padding:0 12px;
    border-radius:var(--radius-pill);
    margin-bottom:16px;
}
.feature-card h3{
    font-size:23px;
    line-height:1.4;
    color:var(--title);
    font-weight:700;
    margin-top:4px;
}
.feature-card h3 a{
    color:inherit;
}
.feature-card h3 a:hover{
    color:var(--primary);
}
.feature-desc{
    color:var(--body);
    font-size:15px;
    line-height:1.85;
    margin-top:14px;
}
.meta-line{
    display:flex;
    align-items:center;
    flex-wrap:wrap;
    gap:10px 16px;
    margin-top:18px;
    color:var(--muted);
    font-size:14px;
}
.meta-line .dot-sep{
    width:3px;
    height:3px;
    background:#B4C9D0;
    border-radius:50%;
}
.feature-more{
    margin-top:22px;
    display:inline-flex;
    align-items:center;
    gap:6px;
    font-weight:600;
    color:var(--primary);
    font-size:15px;
}
.feature-more:hover{
    color:var(--primary-deep);
    gap:10px;
}
.data-list{
    list-style:none;
    border:1px solid var(--line);
    border-radius:var(--radius-card);
    background:var(--white);
    box-shadow:var(--shadow-card);
    padding:0;
    margin:0;
    overflow:hidden;
    height:100%;
    display:flex;
    flex-direction:column;
}
.data-list li{
    padding:18px 22px;
    border-bottom:1px solid var(--line);
    transition:background .18s;
}
.data-list li:last-child{
    border-bottom:none;
}
.data-list li:hover{
    background:#F8FBFD;
}
.list-daterow{
    display:flex;
    align-items:center;
    gap:12px;
    margin-bottom:6px;
}
.list-date{
    font-size:13px;
    color:var(--muted);
    background:#EEF5F7;
    border-radius:var(--radius-pill);
    padding:3px 12px;
    font-weight:500;
}
.list-tag{
    display:inline-block;
    background:rgba(30,154,148,.1);
    color:#16786F;
    font-size:12px;
    padding:2px 10px;
    border-radius:var(--radius-pill);
    font-weight:600;
}
.data-list h3{
    font-size:16px;
    line-height:1.5;
    color:var(--title);
    font-weight:600;
}
.data-list .list-desc{
    color:var(--muted);
    font-size:14px;
    line-height:1.6;
    margin-top:4px;
}
.why-card-grid{
    display:grid;
    grid-template-columns:repeat(3,1fr);
    gap:24px;
    margin-top:40px;
}
.why-item{
    border-top:2px solid var(--primary);
    padding-top:22px;
    background:none;
    box-shadow:none;
}
.why-item .why-num{
    font-size:28px;
    font-weight:700;
    color:var(--primary);
    line-height:1;
    display:block;
    margin-bottom:14px;
}
.why-item h3{
    font-size:18px;
    color:var(--title);
    font-weight:700;
    margin-bottom:10px;
}
.why-item p{
    font-size:15px;
    color:var(--muted);
    line-height:1.7;
}
.channel-grid{
    display:grid;
    grid-template-columns:repeat(4,1fr);
    gap:20px;
    margin-top:40px;
}
.channel-card{
    background:#fff;
    border:1px solid var(--line);
    border-radius:var(--radius-card);
    box-shadow:var(--shadow-card);
    padding:26px 22px;
    transition:var(--transition);
    position:relative;
    overflow:hidden;
}
.channel-card::before{
    content:'';
    position:absolute;
    left:0;
    top:0;
    width:100%;
    height:3px;
    background:var(--primary);
    opacity:0;
    transition:opacity .25s;
}
.channel-card:hover{
    box-shadow:var(--shadow-hover);
    transform:translateY(-4px);
}
.channel-card:hover::before{
    opacity:1;
}
.channel-card .channel-name{
    font-size:18px;
    font-weight:700;
    color:var(--title);
    display:block;
    margin-bottom:10px;
}
.channel-card .channel-desc{
    font-size:14px;
    color:var(--muted);
    line-height:1.6;
}
.timeline-sec{
    background:var(--white);
    border-top:1px solid var(--line);
    border-bottom:1px solid var(--line);
}
.timeline-wrap{
    position:relative;
    padding:84px 0;
}
.timeline{
    position:relative;
    list-style:none;
    max-width:780px;
    margin-top:44px;
}
.timeline::before{
    content:'';
    position:absolute;
    left:10px;
    top:8px;
    bottom:8px;
    width:2px;
    background:var(--line);
}
.timeline-item{
    position:relative;
    padding-left:44px;
    padding-bottom:34px;
    display:flex;
    flex-direction:column;
    gap:4px;
}
.timeline-item:last-child{
    padding-bottom:0;
}
.timeline-item::before{
    content:'';
    position:absolute;
    left:4px;
    top:6px;
    width:14px;
    height:14px;
    border-radius:50%;
    background:#fff;
    border:3px solid var(--primary);
    z-index:1;
}
.timeline-date{
    font-size:13px;
    color:var(--muted);
    font-weight:500;
}
.timeline-title{
    font-size:17px;
    font-weight:700;
    color:var(--title);
    line-height:1.55;
}
.timeline-desc{
    font-size:15px;
    color:var(--body);
    line-height:1.7;
}
.timeline-tag{
    display:inline-block;
    width:auto;
    align-self:flex-start;
    margin-top:6px;
    background:#EEF5F7;
    color:var(--primary-deep);
    border-radius:var(--radius-pill);
    padding:2px 12px;
    font-size:12px;
    font-weight:600;
}
.assist-strip{
    padding:60px 0;
    border-top:1px solid var(--line);
    background:var(--page-bg);
}
.assist-wrapper{
    display:flex;
    align-items:center;
    justify-content:space-between;
    gap:32px;
    background:var(--cta-dark);
    border-radius:20px;
    padding:38px 44px;
    border-top:3px solid var(--accent);
}
.assist-copy h2{
    font-size:25px;
    font-weight:700;
    color:#fff;
    line-height:1.4;
}
.assist-copy p{
    color:#C2D8DF;
    font-size:15px;
    margin-top:10px;
    max-width:600px;
    line-height:1.75;
}
.assist-actions{
    display:flex;
    flex-wrap:wrap;
    gap:12px;
}
.connect-row{
    display:grid;
    grid-template-columns:repeat(3,1fr);
    gap:0;
    border-bottom:1px solid var(--line);
}
.connect-link{
    display:flex;
    gap:14px;
    align-items:center;
    padding:24px 16px;
    border-right:1px solid var(--line);
    background:var(--white);
    transition:var(--transition);
}
.connect-link:last-child{
    border-right:none;
}
.connect-link:hover{
    background:#F8FBFD;
    box-shadow:inset 0 -3px 0 var(--primary);
    transform:translateY(-2px);
}
.connect-icon{
    width:42px;
    height:42px;
    border-radius:12px;
    display:flex;
    align-items:center;
    justify-content:center;
    background:rgba(18,107,133,.1);
    color:var(--primary);
    font-weight:700;
    font-size:18px;
    flex-shrink:0;
}
.connect-text h3{
    font-size:16px;
    font-weight:700;
    color:var(--title);
}
.connect-text p{
    font-size:13px;
    color:var(--muted);
    margin-top:4px;
    line-height:1.5;
}
.site-footer{
    background:#0E3440;
    color:#C2D8DF;
    padding:64px 0 0;
}
.footer-grid{
    display:grid;
    grid-template-columns:2fr 1fr 1fr 1.3fr;
    gap:44px;
    padding-bottom:48px;
    border-bottom:1px solid rgba(255,255,255,.1);
}
.footer-brand .brand-logo .brand-mark{
    background:rgba(255,255,255,.12);
    color:#fff;
}
.footer-brand .brand-text{
    color:#fff;
}
.footer-brand p{
    font-size:14px;
    color:rgba(255,255,255,.65);
    line-height:1.8;
    margin-top:18px;
    max-width:340px;
}
.footer-col h4{
    font-size:16px;
    font-weight:700;
    color:#fff;
    margin-bottom:18px;
}
.footer-col ul{
    list-style:none;
    display:flex;
    flex-direction:column;
    gap:10px;
}
.footer-col a,
.footer-col li{
    font-size:14px;
    color:rgba(255,255,255,.68);
    line-height:1.6;
    padding:2px 0;
}
.footer-col a:hover{
    color:#fff;
}
.footer-bottom{
    display:flex;
    justify-content:space-between;
    gap:12px;
    flex-wrap:wrap;
    padding:20px 0;
    font-size:13px;
    color:rgba(255,255,255,.5);
}
.footer-bottom a{
    color:rgba(255,255,255,.55);
    margin-left:18px;
}
.footer-bottom a:hover{
    color:#fff;
}
.copy-domain{
    white-space:nowrap;
    font-weight:400;
}
@media (max-width:1023.98px){
    .header-inner{
        height:68px;
    }
    .brand-text{
        font-size:17px;
    }
    .main-nav{
        position:fixed;
        top:68px;
        left:0;
        right:0;
        background:#fff;
        border-bottom:1px solid var(--line);
        align-items:stretch;
        flex-direction:column;
        gap:0;
        padding:14px 24px 20px;
        box-shadow:0 20px 40px rgba(10,46,60,.1);
        max-height:calc(100vh - 68px);
        overflow-y:auto;
        display:none;
        z-index:120;
    }
    .main-nav.open{
        display:flex;
    }
    .nav-list{
        flex-direction:column;
        align-items:stretch;
        gap:2px;
        margin-bottom:12px;
    }
    .nav-link{
        width:100%;
        justify-content:flex-start;
        min-height:48px;
        border-radius:12px;
    }
    .mega-wrap{
        border-top:1px solid var(--line);
        padding-top:12px;
    }
    .quick-trigger{
        width:100%;
        justify-content:space-between;
    }
    .mega-panel{
        position:static;
        width:100%;
        box-shadow:none;
        margin-top:10px;
        border-radius:14px;
        padding:18px;
        opacity:1;
        visibility:visible;
        transform:none;
        display:none;
    }
    .mega-wrap.open .mega-panel{
        display:block;
    }
    .mega-grid{
        grid-template-columns:1fr;
        gap:16px;
    }
    .nav-toggle{
        display:flex;
        margin-left:auto;
    }
    .cat-hero{
        padding:48px 0;
    }
    .cat-hero h1{
        font-size:32px;
    }
    .status-preview-card{
        margin-top:28px;
        max-width:100%;
    }
    .why-card-grid,
    .channel-grid{
        grid-template-columns:1fr 1fr;
    }
    .footer-grid{
        grid-template-columns:1fr 1fr;
        gap:36px;
    }
    .assist-wrapper{
        flex-direction:column;
        align-items:flex-start;
    }
    .connect-row{
        grid-template-columns:1fr;
    }
    .connect-link{
        border-right:none;
        border-bottom:1px solid var(--line);
    }
    .connect-link:last-child{
        border-bottom:none;
    }
}
@media (max-width:639.98px){
    .container{
        padding-left:16px;
        padding-right:16px;
    }
    .section-block{
        padding:56px 0;
    }
    .section-heading h2{
        font-size:26px;
    }
    .cat-hero h1{
        font-size:27px;
    }
    .cat-hero .lead{
        font-size:16px;
    }
    .cat-hero-actions{
        flex-direction:column;
        align-items:stretch;
    }
    .status-preview-card{
        padding:18px;
    }
    .feature-card-body{
        padding:22px;
    }
    .why-card-grid,
    .channel-grid{
        grid-template-columns:1fr;
    }
    .footer-grid{
        grid-template-columns:1fr;
        gap:30px;
    }
    .footer-bottom{
        flex-direction:column;
    }
    .footer-bottom a{
        margin-left:0;
        margin-right:16px;
    }
    .assist-wrapper{
        padding:30px 22px;
        border-radius:16px;
    }
}

/* roulang page: article */
/* ========== Design Variables ========== */
:root {
  --main: #126B85;
  --main-dark: #0B4E63;
  --deep: #0A3B4A;
  --accent: #1E9A94;
  --bg: #F4F8FA;
  --white: #FFFFFF;
  --border: #D9E6EC;
  --title: #14343E;
  --text: #425D66;
  --muted: #7A939B;
  --radius: 16px;
  --radius-btn: 10px;
  --shadow-sm: 0 1px 2px rgba(10,46,60,0.04), 0 6px 18px rgba(10,46,60,0.05);
  --shadow-lg: 0 2px 4px rgba(10,46,60,0.05), 0 16px 32px rgba(10,46,60,0.09);
  --font: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
  --header-h: 72px;
}

/* ========== Reset / Base ========== */
*, *:before, *:after { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: var(--font);
  font-size: 16px;
  line-height: 1.75;
  color: var(--text);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; height: auto; display: block; }
a {
  color: var(--main);
  text-decoration: none;
  transition: color .2s ease, background-color .2s ease, box-shadow .2s ease, transform .2s ease;
}
a:hover { color: var(--main-dark); }
a:focus, button:focus, .nav-toggle:focus, input:focus, .quick-trigger:focus {
  outline: 2px solid rgba(18,107,133,.55);
  outline-offset: 2px;
}
ul, ol { padding-left: 1.4rem; }
h1, h2, h3, h4, h5 {
  color: var(--title);
  line-height: 1.35;
  font-weight: 700;
  margin: 0 0 .8rem;
}
p { margin: 0 0 1rem; }

/* ========== Container ========== */
.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 1.5rem;
}

/* ========== Header ========== */
.site-header {
  position: sticky;
  top: 0;
  z-index: 1000;
  background: #fff;
  height: var(--header-h);
  border-bottom: 1px solid var(--border);
  box-shadow: 0 1px 4px rgba(10,46,60,.03);
}
.header-inner {
  height: var(--header-h);
  width: 100%;
  display: flex;
  align-items: center;
}
.brand-logo {
  display: flex;
  align-items: center;
  gap: .55rem;
  flex-shrink: 0;
  margin-right: 2rem;
}
.brand-mark {
  width: 36px;
  height: 36px;
  background: var(--main-dark);
  color: #fff;
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 800;
  font-size: 20px;
  letter-spacing: -1px;
  box-shadow: 0 4px 12px rgba(11,78,99,.20);
}
.brand-text {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--title);
  white-space: nowrap;
  line-height: 1.2;
}
.main-nav {
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  margin-left: .5rem;
}
.nav-list {
  list-style: none;
  display: flex;
  align-items: center;
  margin: 0;
  padding: 0;
  gap: 1.6rem;
}
.nav-link {
  display: inline-flex;
  align-items: center;
  padding: .5rem 0;
  font-size: 1rem;
  font-weight: 600;
  color: var(--text);
  position: relative;
  border-radius: 6px;
  transition: color .2s ease;
}
.nav-link:hover { color: var(--main); }
.nav-link.active { color: var(--main); }
.nav-link.active::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: 2px;
  height: 3px;
  border-radius: 3px;
  background: var(--accent);
}

/* ========== Mega Menu ========== */
.mega-wrap { position: relative; }
.quick-trigger {
  display: inline-flex;
  align-items: center;
  gap: .4rem;
  padding: .55rem 1.1rem;
  border: 1px solid var(--border);
  border-radius: 999px;
  background: #fff;
  font-size: .95rem;
  font-weight: 600;
  color: var(--main-dark);
  cursor: pointer;
  transition: border-color .2s, background .2s, box-shadow .2s;
}
.quick-trigger:hover {
  border-color: var(--main);
  background: #F2F9FB;
}
.quick-trigger .arrow { font-size: .75rem; }
.mega-panel {
  position: absolute;
  right: 0;
  top: calc(100% + 14px);
  width: 620px;
  background: #fff;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow-lg);
  padding: 1.2rem;
  opacity: 0;
  visibility: hidden;
  transform: translateY(8px);
  transition: opacity .22s ease, transform .22s ease, visibility .22s;
  z-index: 999;
}
.mega-wrap:hover .mega-panel,
.mega-wrap:focus-within .mega-panel {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}
.mega-grid {
  display: grid;
  grid-template-columns: 1.2fr 1.3fr .9fr;
  gap: 1.2rem;
}
.mega-col {
  min-width: 0;
}
.mega-heading {
  font-size: .95rem;
  font-weight: 800;
  color: var(--main-dark);
  margin: 0 0 .6rem;
  letter-spacing: .02em;
}
.mega-list, .mega-news {
  list-style: none;
  margin: 0;
  padding: 0;
}
.mega-list li, .mega-news li {
  margin-bottom: .65rem;
}
.mega-list a, .mega-news a {
  display: block;
  padding: .24rem 0;
  font-size: .92rem;
  color: var(--text);
  border-bottom: 1px solid transparent;
}
.mega-list a:hover, .mega-news a:hover {
  color: var(--main);
  border-bottom-color: var(--accent);
}
.mega-cta {
  background: #F0F7F9;
  border-radius: 12px;
  padding: 1rem;
  text-align: center;
}
.mega-cta p {
  font-size: .95rem;
  color: var(--title);
  margin-bottom: .9rem;
}
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: .4rem;
  border: 2px solid transparent;
  border-radius: var(--radius-btn);
  padding: .65rem 1.35rem;
  font-size: 1rem;
  font-weight: 600;
  line-height: 1.3;
  cursor: pointer;
  text-align: center;
  transition: background-color .2s ease, color .2s ease, border-color .2s, box-shadow .2s, transform .15s;
}
.btn:active { transform: translateY(1px); }
.btn-primary {
  background: var(--main-dark);
  color: #fff;
}
.btn-primary:hover {
  background: #083B4D;
  color: #fff;
  box-shadow: 0 8px 18px rgba(10,46,60,.16);
  transform: translateY(-2px);
}
.btn-secondary {
  background: #fff;
  color: var(--main-dark);
  border-color: var(--main);
}
.btn-secondary:hover {
  background: #EAF5F9;
  color: var(--main-dark);
  box-shadow: 0 6px 16px rgba(18,107,133,.12);
}
.btn-white {
  background: #fff;
  color: var(--main-dark);
}
.btn-white:hover {
  background: #F0F7F9;
  color: var(--main-dark);
  box-shadow: 0 8px 18px rgba(10,46,60,.12);
  transform: translateY(-2px);
}
.btn-sm { padding: .45rem .9rem; font-size: .9rem; }

/* ========== Nav Toggle / Mobile ========== */
.nav-toggle {
  display: none;
  width: 44px;
  height: 44px;
  background: none;
  border: 1px solid var(--border);
  border-radius: 10px;
  position: relative;
  cursor: pointer;
  align-items: center;
  justify-content: center;
  padding: 0;
}
.nav-toggle span,
.nav-toggle span::before,
.nav-toggle span::after {
  content: "";
  display: block;
  width: 20px;
  height: 2px;
  background: var(--title);
  border-radius: 2px;
  position: absolute;
  left: 10px;
  transition: transform .25s ease, opacity .2s ease;
}
.nav-toggle span { top: 21px; }
.nav-toggle span::before { top: -6px; }
.nav-toggle span::after { top: 6px; }
#siteHeader.nav-open .nav-toggle span { background: transparent; }
#siteHeader.nav-open .nav-toggle span::before { transform: rotate(45deg); top: 0; }
#siteHeader.nav-open .nav-toggle span::after { transform: rotate(-45deg); top: 0; }

/* ========== Article Banner / Breadcrumb ========== */
.article-banner {
  position: relative;
  background-color: var(--bg);
  background-image: url('/assets/images/backpic/back-1.png');
  background-size: cover;
  background-position: center;
  border-bottom: 1px solid var(--border);
}
.article-banner::before {
  content: "";
  position: absolute;
  inset: 0;
  background: rgba(244,248,250,.90);
}
.article-banner .container {
  position: relative;
  z-index: 1;
  padding-top: 2rem;
  padding-bottom: 1.2rem;
}
.breadcrumb-nav {
  position: relative;
  z-index: 2;
}
.breadcrumb-nav ol {
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  gap: .35rem;
  margin: 0;
  padding: 0;
  font-size: .9rem;
  color: var(--muted);
}
.breadcrumb-nav li a {
  color: var(--muted);
}
.breadcrumb-nav li a:hover { color: var(--main); }
.breadcrumb-nav li + li::before {
  content: "/";
  margin-right: .4rem;
  color: var(--border);
}

/* ========== Article Main ========== */
.main { padding-bottom: 3rem; }
.article-layout {
  margin-top: 0;
}
.article-main-col {
  margin-bottom: 2rem;
}
.article-card {
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow-sm);
  padding: 2.5rem;
  margin-top: 1.5rem;
}
.article-head {
  border-bottom: 1px solid var(--border);
  padding-bottom: 1.5rem;
  margin-bottom: 1.5rem;
}
.article-head h1 {
  font-size: clamp(1.8rem, 4vw, 2.4rem);
  line-height: 1.3;
  margin-bottom: 1rem;
}
.article-meta {
  display: flex;
  flex-wrap: wrap;
  gap: .5rem 1.6rem;
  color: var(--muted);
  font-size: .9rem;
  margin-top: .4rem;
}
.article-meta span {
  display: inline-flex;
  align-items: center;
  gap: .3rem;
}
.article-summary {
  background: #F0F7F9;
  border-left: 4px solid var(--accent);
  border-radius: 10px;
  padding: 1rem 1.2rem;
  font-size: 1.02rem;
  color: var(--title);
  margin: 1rem 0 1.6rem;
}
.article-content {
  font-size: 1.06rem;
  line-height: 1.85;
  word-wrap: break-word;
  color: var(--text);
}
.article-content h2 {
  font-size: 1.55rem;
  margin-top: 2.2rem;
  margin-bottom: 1rem;
  padding-bottom: .5rem;
  border-bottom: 1px solid var(--border);
}
.article-content h3 {
  font-size: 1.25rem;
  margin-top: 1.8rem;
  margin-bottom: .7rem;
}
.article-content p {
  margin: 0 0 1.2rem;
}
.article-content ul,
.article-content ol {
  margin: 0 0 1.2rem;
}
.article-content li { margin-bottom: .45rem; }
.article-content blockquote {
  margin: 1.5rem 0;
  padding: .8rem 1.2rem;
  background: #F0F7F9;
  border-left: 4px solid var(--accent);
  border-radius: 0 10px 10px 0;
  color: var(--title);
}
.article-content img {
  border-radius: 12px;
  margin: 1.5rem 0;
}
.article-content table {
  width: 100%;
  border-collapse: collapse;
  margin-bottom: 1.5rem;
  font-size: .95rem;
}
.article-content table th,
.article-content table td {
  border: 1px solid var(--border);
  padding: .6rem .8rem;
  text-align: left;
}
.article-content table th { background: #F0F7F9; font-weight: 700; }

/* ========== Article Pagination ========== */
.article-pagination {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  margin-top: 2rem;
  padding-top: 1.2rem;
  border-top: 1px solid var(--border);
  font-size: .95rem;
  flex-wrap: wrap;
}
.article-pagination a {
  display: inline-block;
  padding: .55rem 1rem;
  background: #F8FBFC;
  border: 1px solid var(--border);
  border-radius: 10px;
  color: var(--text);
  transition: border-color .2s, color .2s, background .2s;
}
.article-pagination a:hover {
  color: var(--main);
  border-color: var(--main);
  background: #fff;
}

/* ========== Article Sidebar ========== */
.article-side { margin-top: 1.5rem; }
.side-card {
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow-sm);
  padding: 1.4rem;
  margin-bottom: 1.2rem;
}
.side-card h3 {
  font-size: 1.05rem;
  margin-bottom: .8rem;
  color: var(--main-dark);
}
.side-card ul {
  list-style: none;
  margin: 0;
  padding: 0;
}
.side-card ul li { margin-bottom: .7rem; }
.side-card ul a {
  display: block;
  padding: .4rem 0;
  border-bottom: 1px solid #EAF2F5;
  color: var(--text);
  font-size: .95rem;
}
.side-card ul a:hover {
  color: var(--main);
  padding-left: .25rem;
  border-bottom-color: var(--accent);
}
.side-card.accent {
  background: #F0F7F9;
  border-color: #C9E2E8;
}
.side-card.accent .btn { width: 100%; margin-top: .5rem; }
.tag-list {
  display: flex;
  flex-wrap: wrap;
  gap: .5rem;
}
.tag {
  display: inline-block;
  background: #EAF5F9;
  color: var(--main-dark);
  border-radius: 999px;
  padding: .25rem .75rem;
  font-size: .82rem;
  font-weight: 600;
}

/* ========== Not Found ========== */
.notfound-card {
  max-width: 640px;
  margin: 3rem auto;
  text-align: center;
  background: #fff;
  border: 1px dashed var(--border);
  border-radius: var(--radius);
  padding: 3rem 2rem;
  box-shadow: var(--shadow-sm);
}
.notfound-card h1 {
  font-size: 2rem;
}
.notfound-card .btn { margin-top: .6rem; }

/* ========== Related Section ========== */
.section-related {
  margin-top: 2.5rem;
}
.section-related .section-title {
  font-size: 1.5rem;
  margin-bottom: 1.5rem;
  color: var(--title);
  border-left: 4px solid var(--accent);
  padding-left: .9rem;
}
.related-card {
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow-sm);
  overflow: hidden;
  height: 100%;
  display: flex;
  flex-direction: column;
  transition: box-shadow .25s, transform .25s;
}
.related-card:hover {
  box-shadow: var(--shadow-lg);
  transform: translateY(-3px);
}
.related-card .related-img {
  aspect-ratio: 16 / 10;
  object-fit: cover;
  width: 100%;
  background: #EAF2F5;
}
.related-body {
  padding: 1.2rem;
  display: flex;
  flex-direction: column;
  flex: 1;
}
.related-body h3 {
  font-size: 1.08rem;
  line-height: 1.45;
  margin-bottom: .6rem;
}
.related-body h3 a { color: var(--title); }
.related-body h3 a:hover { color: var(--main); }
.related-body p {
  font-size: .9rem;
  color: var(--muted);
  margin-bottom: .8rem;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.related-link {
  margin-top: auto;
  font-size: .9rem;
  font-weight: 600;
  color: var(--main);
}

/* ========== CTA Strip ========== */
.cta-strip {
  background: var(--deep);
  color: #E7F0F4;
  margin-top: 1.5rem;
  padding: 0;
  border-top: 3px solid var(--accent);
}
.cta-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.5rem;
  padding-top: 2rem;
  padding-bottom: 2rem;
  flex-wrap: wrap;
}
.cta-copy h2 {
  color: #fff;
  margin-bottom: .4rem;
}
.cta-copy p {
  color: #B9CDD6;
  margin: 0;
}
.cta-action { flex-shrink: 0; }

/* ========== Footer ========== */
.site-footer {
  background: #0C2836;
  color: #B3C7CE;
  padding: 3.2rem 0 0;
  margin-top: 0;
}
.footer-grid {
  display: grid;
  grid-template-columns: 1.6fr repeat(3, 1fr);
  gap: 2rem;
  padding-bottom: 2.2rem;
}
.footer-brand .brand-logo {
  margin-bottom: 1rem;
}
.footer-brand .brand-text {
  color: #fff;
}
.footer-brand p {
  font-size: .92rem;
  line-height: 1.7;
  color: #AFC4CC;
  max-width: 280px;
}
.footer-col h4 {
  color: #E6F0F4;
  font-size: 1rem;
  margin-bottom: 1rem;
  font-weight: 700;
}
.footer-col ul {
  list-style: none;
  margin: 0;
  padding: 0;
}
.footer-col li {
  margin-bottom: .55rem;
  font-size: .92rem;
  color: #AFC4CC;
}
.footer-col a {
  color: #AFC4CC;
  text-decoration: none;
}
.footer-col a:hover {
  color: #fff;
  text-decoration: underline;
}
.footer-bottom {
  border-top: 1px solid rgba(255,255,255,.12);
  padding: 1.2rem 0;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: .8rem;
  flex-wrap: wrap;
  font-size: .85rem;
  color: #8CAAB8;
}
.copy-domain {
  margin: 0;
}
.team-links {
  display: flex;
  gap: 1rem;
}
.team-links a {
  color: #AFC4CC;
}
.team-links a:hover { color: #fff; }

/* ========== Responsive ========== */
@media (max-width: 1199px) {
  .mega-panel { width: 560px; }
}
@media (max-width: 1023.98px) {
  .main-nav {
    position: fixed;
    top: var(--header-h);
    left: 0;
    right: 0;
    background: #fff;
    border-bottom: 1px solid var(--border);
    box-shadow: 0 24px 40px rgba(10,46,60,.14);
    flex-direction: column;
    align-items: stretch;
    padding: 1.2rem 1.5rem 2rem;
    max-height: calc(100vh - 72px);
    overflow-y: auto;
    display: block;
    opacity: 0;
    visibility: hidden;
    transform: translateY(-16px);
    transition: opacity .25s, transform .25s, visibility .25s;
    margin: 0;
    z-index: 99;
  }
  .main-nav.open {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
  }
  .nav-list {
    flex-direction: column;
    align-items: flex-start;
    gap: .4rem;
    margin-bottom: 1rem;
  }
  .nav-list li { width: 100%; }
  .nav-link {
    width: 100%;
    padding: .8rem 0;
    font-size: 1.05rem;
    border-bottom: 1px solid #EAF2F5;
  }
  .nav-link.active::after {
    display: none;
  }
  .nav-toggle { display: flex; }
  .mega-wrap {
    width: 100%;
  }
  .quick-trigger {
    width: 100%;
    justify-content: space-between;
    margin-bottom: .8rem;
  }
  .mega-panel {
    position: static;
    width: 100%;
    opacity: 1;
    visibility: visible;
    transform: none;
    box-shadow: none;
    border: 0;
    background: #F6FAFB;
    border-radius: 14px;
    padding: 1rem;
    transition: none;
  }
  .mega-grid {
    grid-template-columns: 1fr;
    gap: 1rem;
  }
  .mega-col + .mega-col {
    border-top: 1px solid var(--border);
    padding-top: .8rem;
  }
  .footer-grid { grid-template-columns: 1fr 1fr; gap: 1.5rem; }
}

@media (max-width: 639.98px) {
  .header-inner {
    gap: .4rem;
  }
  .brand-text {
    font-size: 1.06rem;
  }
  .brand-mark {
    width: 32px;
    height: 32px;
    font-size: 17px;
  }
  .container {
    padding: 0 1rem;
  }
  .article-card {
    padding: 1.4rem;
    border-radius: 12px;
  }
  .article-head h1 {
    font-size: 1.6rem;
  }
  .article-content {
    font-size: 1rem;
  }
  .article-meta {
    flex-direction: column;
    gap: .2rem;
  }
  .article-pagination {
    flex-direction: column;
    align-items: stretch;
  }
  .footer-grid { grid-template-columns: 1fr; gap: 1.4rem; }
  .footer-bottom {
    flex-direction: column;
    text-align: center;
  }
  .team-links { justify-content: center; }
  .cta-inner { flex-direction: column; text-align: center; }
  .cta-action { width: 100%; }
  .cta-action .btn { width: 100%; }
}

/* roulang page: category3 */
:root{
  --primary:#126B85;
  --primary-deep:#0B4E63;
  --primary-ink:#0A3B4A;
  --accent:#1E9A94;
  --bg:#F4F8FA;
  --card:#FFFFFF;
  --border:#D9E6EC;
  --heading:#14343E;
  --body:#425D66;
  --muted:#7A939B;
  --white:#FFFFFF;
  --radius-card:16px;
  --radius-btn:10px;
  --radius-tag:999px;
  --shadow-card:0 1px 2px rgba(10,46,60,.04),0 6px 18px rgba(10,46,60,.05);
  --shadow-hover:0 2px 4px rgba(10,46,60,.05), 0 16px 32px rgba(10,46,60,.09);
  --space-section:92px;
}

*,*::before,*::after{
  box-sizing:border-box;
}
html{
  scroll-behavior:smooth;
}
body{
  margin:0;
  font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC",sans-serif;
  background:var(--bg);
  color:var(--body);
  font-size:16px;
  line-height:1.75;
  -webkit-font-smoothing:antialiased;
}
body.nav-open{
  overflow:hidden;
}
.container{
  max-width:1200px;
  margin:0 auto;
  padding-left:24px;
  padding-right:24px;
}
img{
  display:block;
  max-width:100%;
}
a{
  color:inherit;
  text-decoration:none;
  transition:color .2s ease;
}
ul,ol{
  margin:0;
  padding:0;
  list-style:none;
}
h1,h2,h3,h4,h5,p{
  margin-top:0;
  margin-bottom:0;
}
button{
  font-family:inherit;
}
input{
  font-family:inherit;
}
:focus-visible{
  outline:2px solid rgba(18,107,133,.5);
  outline-offset:3px;
}
.section-space{
  padding:var(--space-section) 0;
}
.light-bg{
  background:#EDF5F8;
}

/* Buttons */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  padding:12px 22px;
  border-radius:var(--radius-btn);
  font-size:15px;
  font-weight:600;
  line-height:1.3;
  border:1px solid transparent;
  cursor:pointer;
  transition:all .22s ease;
}
.btn-primary{
  background:var(--primary-deep);
  color:var(--white);
}
.btn-primary:hover{
  background:#083b4d;
  color:var(--white);
  transform:translateY(-2px);
  box-shadow:0 10px 18px rgba(10,46,60,.12);
}
.btn-primary:active{
  transform:translateY(0);
}
.btn-secondary{
  background:var(--white);
  border-color:rgba(18,107,133,.55);
  color:var(--primary-deep);
}
.btn-secondary:hover{
  background:#EAF5F9;
  color:var(--primary-deep);
  border-color:var(--primary);
}
.btn-white{
  background:var(--white);
  color:var(--primary-deep);
}
.btn-white:hover{
  background:#EEF6F8;
  color:var(--primary-ink);
  transform:translateY(-2px);
}
.btn-sm{
  padding:9px 16px;
  font-size:14px;
}

/* Tags */
.tag{
  display:inline-flex;
  align-items:center;
  background:#E7F2F6;
  color:var(--primary-deep);
  border-radius:var(--radius-tag);
  font-size:13px;
  padding:2px 10px;
  line-height:1.5;
  font-weight:500;
  white-space:nowrap;
}
.tag-line{
  border:1px solid rgba(18,107,133,.3);
  background:rgba(255,255,255,.6);
}
.tag-green{
  background:rgba(30,154,148,.12);
  color:#0b6c67;
}

/* Header */
.site-header{
  position:sticky;
  top:0;
  z-index:1000;
  background:rgba(255,255,255,.97);
  border-bottom:1px solid var(--border);
  backdrop-filter:none;
}
.header-inner{
  min-height:72px;
  display:flex;
  align-items:center;
  gap:18px;
}
.brand-logo{
  display:inline-flex;
  align-items:center;
  gap:10px;
  color:var(--heading);
  flex-shrink:0;
}
.brand-mark{
  width:38px;
  height:38px;
  border-radius:12px;
  background:var(--primary-deep);
  color:#fff;
  font-size:20px;
  font-weight:700;
  display:inline-flex;
  align-items:center;
  justify-content:center;
  box-shadow:0 4px 10px rgba(11,78,99,.22);
}
.brand-text{
  font-size:19px;
  font-weight:700;
  color:var(--heading);
  letter-spacing:.01em;
}
.brand-text a{
  color:inherit;
}
.main-nav{
  display:flex;
  align-items:center;
  justify-content:flex-end;
  flex:1;
}
.nav-list{
  display:flex;
  align-items:center;
  gap:2px;
  margin:0;
}
.nav-link{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  height:40px;
  padding:0 17px;
  border-radius:var(--radius-tag);
  font-size:15px;
  color:var(--heading);
  transition:all .2s ease;
  white-space:nowrap;
}
.nav-link:hover{
  background:#EAF5F9;
  color:var(--primary);
}
.nav-link.active{
  background:#EAF5F9;
  color:var(--primary-deep);
  font-weight:600;
  position:relative;
}
.mega-wrap{
  position:relative;
  margin-left:8px;
}
.quick-trigger{
  display:inline-flex;
  align-items:center;
  gap:7px;
  height:40px;
  padding:0 17px;
  border-radius:var(--radius-tag);
  border:1px solid transparent;
  background:rgba(18,107,133,.08);
  color:var(--primary-deep);
  font-size:15px;
  font-weight:600;
  cursor:pointer;
  transition:all .2s ease;
  white-space:nowrap;
}
.quick-trigger:hover{
  background:rgba(18,107,133,.15);
  border-color:rgba(18,107,133,.28);
}
.quick-trigger .arrow{
  display:inline-block;
  font-size:13px;
  transition:transform .2s ease;
}
.quick-trigger:hover .arrow,
.mega-open .quick-trigger .arrow{
  transform:rotate(180deg);
}
.mega-panel{
  position:absolute;
  right:0;
  top:calc(100% + 15px);
  width:640px;
  background:var(--white);
  border:1px solid var(--border);
  border-radius:18px;
  box-shadow:var(--shadow-hover);
  padding:24px;
  display:none;
  z-index:120;
}
.mega-wrap:hover .mega-panel,
.mega-wrap.mega-open .mega-panel{
  display:block;
}
.mega-grid{
  display:grid;
  grid-template-columns:1.1fr 1.3fr 1fr;
  gap:22px;
}
.mega-heading{
  font-size:13px;
  font-weight:600;
  letter-spacing:.12em;
  color:var(--muted);
  margin-bottom:12px;
}
.mega-list li{
  margin-bottom:2px;
}
.mega-list a,
.mega-news a{
  display:block;
  padding:7px 4px;
  font-size:15px;
  color:var(--heading);
  border-radius:8px;
  transition:all .2s ease;
}
.mega-list a:hover,
.mega-news a:hover{
  background:#EAF5F9;
  color:var(--primary-deep);
  padding-left:10px;
}
.mega-news li{
  border-bottom:1px solid #EAF0F3;
}
.mega-news li:last-child{
  border-bottom:0;
}
.mega-cta{
  background:#EEF7F9;
  border-radius:14px;
  padding:18px;
}
.mega-cta p{
  font-size:14px;
  line-height:1.6;
  color:var(--body);
  margin-bottom:14px;
}
.nav-toggle{
  display:none;
  width:42px;
  height:42px;
  border:0;
  background:transparent;
  border-radius:10px;
  cursor:pointer;
  align-items:center;
  justify-content:center;
  margin-left:auto;
}
.nav-toggle span,
.nav-toggle span::before,
.nav-toggle span::after{
  width:20px;
  height:2px;
  background:var(--heading);
  border-radius:2px;
  content:"";
  display:block;
  transition:all .25s ease;
}
.nav-toggle span{
  position:relative;
}
.nav-toggle span::before{
  position:absolute;
  top:-7px;
}
.nav-toggle span::after{
  position:absolute;
  top:7px;
}
.nav-open .nav-toggle span{
  background:transparent;
}
.nav-open .nav-toggle span::before{
  top:0;
  transform:rotate(45deg);
}
.nav-open .nav-toggle span::after{
  top:0;
  transform:rotate(-45deg);
}

/* Hero banner */
.info-hero{
  position:relative;
  padding:78px 0 82px;
  background:#EDF6F9;
  border-bottom:1px solid var(--border);
  overflow:hidden;
}
.hero-bg{
  position:absolute;
  inset:0;
  background-size:cover;
  background-position:center;
  opacity:.16;
  z-index:0;
}
.info-hero .container{
  position:relative;
  z-index:1;
}
.breadcrumb{
  display:flex;
  flex-wrap:wrap;
  gap:4px;
  font-size:14px;
  color:var(--muted);
  margin-bottom:22px;
}
.breadcrumb a{
  color:var(--muted);
}
.breadcrumb a:hover{
  color:var(--primary);
}
.breadcrumb-sep{
  margin:0 6px;
  color:var(--border);
}
.hero-main{
  display:grid;
  grid-template-columns:1.22fr .78fr;
  gap:46px;
  align-items:center;
}
.hero-title{
  font-size:clamp(32px,5vw,52px);
  line-height:1.2;
  color:var(--heading);
  font-weight:700;
  letter-spacing:-.01em;
  margin-bottom:18px;
}
.hero-title .nowrap{
  white-space:nowrap;
}
.hero-lead{
  font-size:16px;
  line-height:1.9;
  color:var(--body);
  max-width:620px;
  margin-bottom:22px;
}
.hero-attr{
  display:flex;
  flex-wrap:wrap;
  gap:14px;
  font-size:14px;
  color:var(--muted);
  margin-bottom:30px;
}
.hero-attr li{
  display:inline-flex;
  align-items:center;
  gap:7px;
}
.hero-attr li::before{
  content:"✓";
  display:inline-flex;
  align-items:center;
  justify-content:center;
  width:19px;
  height:19px;
  border-radius:50%;
  background:rgba(30,154,148,.14);
  color:var(--accent);
  font-size:11px;
}
.hero-actions{
  display:flex;
  flex-wrap:wrap;
  gap:14px;
}
.status-card{
  background:var(--white);
  border:1px solid var(--border);
  border-radius:20px;
  box-shadow:var(--shadow-card);
  padding:24px 22px 18px;
  position:relative;
}
.status-card-top{
  display:flex;
  align-items:center;
  justify-content:space-between;
  border-bottom:1px solid #EDF2F5;
  padding-bottom:14px;
  margin-bottom:16px;
}
.status-card-label{
  font-size:14px;
  color:var(--muted);
}
.status-dot{
  width:9px;
  height:9px;
  border-radius:50%;
  background:var(--accent);
  display:inline-block;
  box-shadow:0 0 0 4px rgba(30,154,148,.13);
}
.status-date{
  display:block;
  font-size:22px;
  font-weight:700;
  color:var(--heading);
  margin-bottom:4px;
}
.status-note{
  font-size:14px;
  line-height:1.7;
  color:var(--body);
  margin-bottom:18px;
}
.status-list{
  border-top:1px solid #EDF2F5;
  padding-top:12px;
  display:grid;
  gap:8px;
}
.status-list li{
  display:flex;
  align-items:center;
  justify-content:space-between;
  font-size:14px;
  color:var(--body);
}
.status-list b{
  color:var(--primary-deep);
  font-weight:600;
}
.status-list .ok{
  color:var(--accent);
  font-weight:600;
}
.status-actions{
  display:flex;
  gap:10px;
  margin-top:16px;
}
.status-actions .btn{
  flex:1;
}

/* Section head */
.section-head{
  display:flex;
  align-items:flex-end;
  justify-content:space-between;
  gap:20px;
  margin-bottom:30px;
}
.section-title{
  font-size:32px;
  line-height:1.3;
  color:var(--heading);
  font-weight:700;
}
.section-title small{
  display:block;
  font-size:15px;
  font-weight:400;
  color:var(--muted);
  margin-top:6px;
}
.more-link{
  display:inline-flex;
  align-items:center;
  gap:4px;
  color:var(--primary);
  font-size:15px;
  font-weight:600;
}
.more-link:hover{
  color:var(--primary-deep);
  padding-right:2px;
}

/* Platform updates */
.dynamic-layout{
  display:grid;
  grid-template-columns:1.12fr .88fr;
  gap:36px;
}
.feature-card{
  background:var(--white);
  border:1px solid var(--border);
  border-radius:var(--radius-card);
  overflow:hidden;
  box-shadow:var(--shadow-card);
  transition:box-shadow .25s ease, transform .25s ease;
  height:100%;
}
.feature-card:hover{
  box-shadow:var(--shadow-hover);
  transform:translateY(-3px);
}
.feature-image{
  position:relative;
  aspect-ratio:16/10;
  overflow:hidden;
}
.feature-image img{
  width:100%;
  height:100%;
  object-fit:cover;
}
.feature-label{
  position:absolute;
  left:18px;
  top:18px;
}
.feature-content{
  padding:24px;
}
.feature-time{
  font-size:14px;
  color:var(--muted);
  margin-bottom:10px;
  display:block;
}
.feature-title{
  font-size:21px;
  line-height:1.55;
  color:var(--heading);
  margin-bottom:12px;
  font-weight:700;
}
.feature-title a:hover{
  color:var(--primary);
}
.feature-summary{
  font-size:15px;
  line-height:1.75;
  color:var(--body);
  margin-bottom:18px;
}
.feature-link{
  display:inline-flex;
  align-items:center;
  gap:6px;
  font-size:15px;
  font-weight:600;
  color:var(--primary);
}
.feature-link:hover{
  color:var(--primary-deep);
}
.news-panel{
  background:var(--white);
  border:1px solid var(--border);
  border-radius:var(--radius-card);
  padding:22px;
  box-shadow:var(--shadow-card);
}
.news-panel-title{
  font-size:17px;
  font-weight:700;
  color:var(--heading);
  border-bottom:1px solid #EDF1F4;
  padding-bottom:14px;
  margin-bottom:4px;
}
.article-row{
  display:block;
  padding:16px 0;
  border-bottom:1px solid #EDF1F4;
  transition:padding-left .2s ease;
}
.article-row:hover{
  padding-left:6px;
}
.article-row:last-of-type{
  border-bottom:0;
}
.article-row-head{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:12px;
  margin-bottom:8px;
}
.article-row-date{
  font-size:13px;
  color:var(--muted);
}
.article-row-title{
  font-size:16px;
  font-weight:600;
  color:var(--heading);
  margin-bottom:5px;
}
.article-row-title:hover{
  color:var(--primary);
}
.article-row-text{
  font-size:14px;
  line-height:1.7;
  color:var(--muted);
}
.panel-more{
  display:inline-flex;
  align-items:center;
  gap:5px;
  font-size:14px;
  font-weight:600;
  color:var(--primary);
  margin-top:4px;
}
.panel-more:hover{
  color:var(--primary-deep);
}

/* Info reading order */
.read-order{
  background:#EAF3F7;
}
.read-list{
  display:grid;
  grid-template-columns:repeat(3,1fr);
  gap:0;
}
.read-step{
  display:grid;
  grid-template-columns:54px 1fr;
  gap:16px;
  padding:8px 34px 8px 24px;
  position:relative;
}
.read-step + .read-step::before{
  content:"";
  position:absolute;
  left:0;
  top:22px;
  bottom:22px;
  border-left:2px dashed #B8CED6;
}
.read-step-number{
  font-size:40px;
  line-height:1;
  font-weight:800;
  color:rgba(18,107,133,.28);
  text-align:center;
}
.read-step b{
  display:block;
  font-size:17px;
  color:var(--heading);
  margin-bottom:9px;
}
.read-step p{
  font-size:14px;
  line-height:1.8;
  color:var(--body);
}
.read-progress{
  height:4px;
  border-radius:99px;
  background:rgba(18,107,133,.12);
  margin-top:30px;
  overflow:hidden;
}
.read-progress span{
  display:block;
  height:100%;
  width:100%;
  border-radius:inherit;
  background:linear-gradient(90deg, var(--primary), var(--accent));
}

/* FAQ */
.faq-wrap{
  background:var(--white);
  border-radius:22px;
  border:1px solid var(--border);
  box-shadow:var(--shadow-card);
  padding:38px 38px 32px;
}
.faq-grid{
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:18px 28px;
}
.faq-item{
  border:1px solid #E1EAEE;
  background:#FBFCFD;
  border-radius:14px;
  overflow:hidden;
  transition:background .2s ease,border-color .2s ease;
}
.faq-item:hover{
  border-color:rgba(18,107,133,.4);
}
.faq-item summary{
  cursor:pointer;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  padding:18px 20px;
  font-weight:600;
  font-size:15px;
  color:var(--heading);
  list-style:none;
  transition:color .2s ease;
}
.faq-item summary::-webkit-details-marker{
  display:none;
}
.faq-item summary::after{
  content:"+";
  flex-shrink:0;
  font-size:24px;
  line-height:1;
  color:var(--primary);
  font-weight:300;
  transition:transform .25s ease;
}
.faq-item[open] summary::after{
  transform:rotate(45deg);
}
.faq-item[open] summary{
  color:var(--primary-deep);
}
.faq-answer{
  padding:0 20px 20px;
  font-size:15px;
  line-height:1.9;
  color:var(--body);
  border-top:1px solid #EDF1F4;
  margin-top:-2px;
}
.faq-answer{
  padding-top:14px;
}

/* CTA */
.cta-band{
  background:var(--primary-ink);
  position:relative;
  border-top:1px solid rgba(255,255,255,.08);
}
.cta-band::before{
  content:"";
  position:absolute;
  top:0;
  left:0;
  right:0;
  height:2px;
  background:linear-gradient(90deg,var(--accent), rgba(30,154,148,.2));
}
.cta-inner{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:30px;
  padding:52px 0;
}
.cta-title{
  font-size:26px;
  line-height:1.4;
  color:#fff;
  font-weight:700;
  margin-bottom:10px;
}
.cta-text{
  font-size:15px;
  line-height:1.8;
  color:#BBD3DA;
  max-width:560px;
}
.cta-actions{
  display:flex;
  flex-wrap:wrap;
  gap:14px;
  flex-shrink:0;
}

/* Footer */
.site-footer{
  background:#0C3542;
  color:#AFC6CE;
  padding-top:52px;
}
.footer-grid{
  display:grid;
  grid-template-columns:1.6fr 1fr 1fr 1.25fr;
  gap:34px;
  padding-bottom:34px;
}
.footer-grid .brand-logo{
  color:#fff;
  margin-bottom:14px;
}
.footer-grid .brand-mark{
  background:#fff;
  color:var(--primary-ink);
}
.footer-grid .brand-text{
  color:#fff;
}
.footer-brand p{
  font-size:14px;
  line-height:1.9;
  color:#AFD0D9;
  margin-top:12px;
  max-width:320px;
}
.footer-col h4{
  font-size:16px;
  color:#fff;
  font-weight:600;
  margin-bottom:14px;
  letter-spacing:.02em;
}
.footer-col ul{
  display:grid;
  gap:9px;
}
.footer-col a,
.footer-col li{
  font-size:14px;
  line-height:1.7;
  color:#AFD0D9;
  transition:color .2s ease;
}
.footer-col a:hover{
  color:#fff;
}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.1);
  padding:18px 0;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:18px;
  color:#8FAEB8;
  font-size:13px;
}
.footer-bottom a{
  color:#AFD0D9;
  margin-left:16px;
}
.footer-bottom a:hover{
  color:#fff;
}
.copy-domain{
  display:flex;
  flex-wrap:wrap;
  gap:5px;
}
.team-links{
  display:flex;
  flex-wrap:wrap;
}

/* Responsive */
@media(max-width:1023px){
  .header-inner{
    min-height:64px;
  }
  .nav-toggle{
    display:flex;
  }
  .main-nav{
    position:fixed;
    top:64px;
    left:0;
    right:0;
    background:#fff;
    flex-direction:column;
    align-items:stretch;
    justify-content:flex-start;
    border-bottom:1px solid var(--border);
    box-shadow:var(--shadow-hover);
    padding:20px 24px 32px;
    max-height:calc(100vh - 64px);
    overflow-y:auto;
    display:none;
  }
  .nav-open .main-nav{
    display:flex;
  }
  .nav-list{
    flex-direction:column;
    align-items:stretch;
    gap:8px;
    margin-bottom:14px;
  }
  .nav-link{
    width:100%;
    height:48px;
    justify-content:flex-start;
    padding:0 14px;
  }
  .mega-wrap{
    width:100%;
    margin-left:0;
    margin-top:4px;
  }
  .quick-trigger{
    width:100%;
    justify-content:space-between;
    border-radius:12px;
    background:var(--bg);
  }
  .mega-panel{
    position:static;
    width:100%;
    display:none;
    border-radius:14px;
    margin-top:10px;
    box-shadow:none;
    border:1px solid var(--border);
    padding:18px;
  }
  .mega-wrap.mega-open .mega-panel{
    display:block;
  }
  .mega-grid{
    grid-template-columns:1fr;
    gap:18px;
  }
  .mega-cta{
    padding:16px;
  }

  .hero-main{
    grid-template-columns:1fr;
    gap:28px;
  }
  .dynamic-layout{
    grid-template-columns:1fr;
  }
  .news-panel{
    padding:20px;
  }
  .read-list{
    grid-template-columns:1fr;
    gap:0;
  }
  .read-step{
    padding:20px 0;
  }
  .read-step + .read-step{
    border-top:1px dashed #B8CED6;
  }
  .read-step + .read-step::before{
    display:none;
  }
  .cta-inner{
    flex-direction:column;
    align-items:flex-start;
  }
  .cta-actions{
    width:100%;
  }
  .footer-grid{
    grid-template-columns:1.2fr 1fr;
  }
}

@media(max-width:767px){
  .section-space{
    --space-section:62px;
  }
  .hero-title{
    font-size:30px;
  }
  .status-card{
    padding:20px 16px 16px;
  }
  .status-actions{
    flex-direction:column;
  }
  .section-title{
    font-size:26px;
  }
  .section-head{
    flex-direction:column;
    align-items:flex-start;
    gap:8px;
  }
  .faq-wrap{
    padding:22px 18px;
  }
  .faq-grid{
    grid-template-columns:1fr;
  }
  .cta-title{
    font-size:22px;
  }
  .footer-grid{
    grid-template-columns:1fr;
    gap:28px;
  }
  .footer-bottom{
    flex-direction:column;
    align-items:flex-start;
  }
  .team-links a{
    margin-left:0;
    margin-right:18px;
  }
}

@media(max-width:520px){
  .container{
    padding-left:16px;
    padding-right:16px;
  }
  .brand-text{
    font-size:16px;
  }
  .brand-mark{
    width:34px;
    height:34px;
    border-radius:10px;
    font-size:18px;
  }
  .breadcrumb{
    font-size:13px;
  }
  .hero-title{
    font-size:26px;
  }
  .hero-lead{
    font-size:15px;
  }
  .hero-actions .btn{
    width:100%;
  }
  .feature-card{
    border-radius:14px;
  }
  .feature-content{
    padding:18px;
  }
  .feature-title{
    font-size:18px;
  }
  .read-step{
    grid-template-columns:40px 1fr;
    gap:12px;
  }
  .read-step-number{
    font-size:30px;
  }
  .footer-grid{
    gap:22px;
  }
}

/* roulang page: category2 */
:root{
  --c-primary:#126B85;
  --c-primary-deep:#0B4E63;
  --c-dark:#0A3B4A;
  --c-accent:#1E9A94;
  --c-bg:#F4F8FA;
  --c-card:#FFFFFF;
  --c-border:#D9E6EC;
  --c-title:#14343E;
  --c-text:#425D66;
  --c-muted:#7A939B;
  --shadow-sm:0 1px 2px rgba(10,46,60,.04),0 6px 18px rgba(10,46,60,.05);
  --shadow-lg:0 2px 4px rgba(10,46,60,.05),0 16px 32px rgba(10,46,60,.09);
  --r-lg:16px;
  --r-btn:10px;
  --maxw:1200px;
  --space:90px;
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:96px}
body{margin:0;background:var(--c-bg);color:var(--c-text);font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC",sans-serif;line-height:1.75;-webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility}
img{max-width:100%;height:auto;display:block;border-radius:12px}
a{color:var(--c-primary);text-decoration:none;transition:color .2s ease,background .2s ease,border .2s ease,box-shadow .2s ease}
a:hover,a:focus{color:var(--c-primary-deep)}
ul,ol{margin:0;padding:0}
h1,h2,h3,h4{color:var(--c-title);line-height:1.3;font-weight:700;margin-top:0}
h1{font-size:clamp(30px,4vw,42px);line-height:1.25;letter-spacing:.5px}
h2{font-size:clamp(24px,2.6vw,32px)}
h3{font-size:20px}
h4{font-size:16px}
.container{max-width:var(--maxw);margin-left:auto;margin-right:auto;padding-left:20px;padding-right:20px}
.section-site{padding:var(--space) 0}

/* Header */
.site-header{position:sticky;top:0;z-index:80;background:rgba(255,255,255,.94);backdrop-filter:blur(6px);border-bottom:1px solid var(--c-border);box-shadow:0 1px 12px rgba(10,46,60,.04)}
.header-inner{display:flex;align-items:center;min-height:72px;gap:26px;position:relative}
.brand-logo{display:inline-flex;align-items:center;gap:10px;flex-shrink:0}
.brand-mark{display:inline-flex;align-items:center;justify-content:center;width:34px;height:34px;border-radius:10px;background:var(--c-primary-deep);color:#fff;font-size:19px;font-weight:700;}
.brand-text{color:var(--c-title);font-weight:700;font-size:18px;white-space:nowrap;letter-spacing:.2px}
.site-header .main-nav{margin-left:auto;display:flex;align-items:center;gap:18px}
.nav-list{display:flex;align-items:center;list-style:none;gap:2px}
.nav-list .nav-link{display:inline-block;padding:10px 14px;border-radius:999px;color:#324D57;font-size:15px;font-weight:600;white-space:nowrap}
.nav-list .nav-link:hover{color:var(--c-primary);background:#EAF5F9}
.nav-list .nav-link.active{color:var(--c-primary-deep);background:#DDF0F5;box-shadow:inset 0 0 0 1px rgba(18,107,133,.08)}
.mega-wrap{position:relative}
.quick-trigger{display:inline-flex;align-items:center;gap:6px;font-size:14px;font-weight:600;color:var(--c-dark);background:#fff;border:1px solid var(--c-border);border-radius:999px;padding:9px 15px;cursor:pointer;transition:border .2s,background .2s}
.quick-trigger:hover,.mega-wrap.open .quick-trigger{border-color:rgba(18,107,133,.5);background:#EAF5F9}
.quick-trigger .arrow{font-size:12px;opacity:.7}
.mega-panel{position:absolute;top:calc(100% + 13px);right:0;width:580px;max-width:calc(100vw - 34px);padding:24px;background:var(--c-card);border:1px solid var(--c-border);border-radius:18px;box-shadow:var(--shadow-lg);opacity:0;visibility:hidden;transform:translateY(10px);transition:opacity .22s,transform .22s,visibility .22s;z-index:90}
.mega-wrap.open .mega-panel,.mega-wrap:hover .mega-panel,.mega-wrap:focus-within .mega-panel{opacity:1;visibility:visible;transform:none}
.mega-grid{display:grid;grid-template-columns:1.05fr 1.35fr .9fr;gap:22px}
.mega-col .mega-heading{margin-bottom:10px;font-size:12px;letter-spacing:1px;text-transform:uppercase;color:var(--c-muted)}
.mega-list,.mega-news{list-style:none;display:grid;gap:6px}
.mega-list a,.mega-news a{font-size:14px;color:var(--c-text);display:block;padding:5px 0;line-height:1.5}
.mega-list a:hover,.mega-news a:hover{color:var(--c-primary)}
.mega-cta{background:#EAF5F9;border:1px solid #D5EBF2;border-radius:14px;padding:14px;display:flex;flex-direction:column;justify-content:center;gap:9px}
.mega-cta p{font-size:13px;color:var(--c-title);margin:0;line-height:1.55}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;border-radius:10px;font-weight:600;font-size:15px;padding:12px 22px;line-height:1.2;text-align:center;cursor:pointer;transition:background .2s,border .2s,box-shadow .2s,transform .15s;border:1px solid transparent}
.btn-primary{background:var(--c-primary-deep);color:#fff}
.btn-primary:hover{background:#083B4D;color:#fff;box-shadow:0 8px 20px rgba(11,78,99,.16);transform:translateY(-1px)}
.btn-primary:active{transform:translateY(0);box-shadow:none}
.btn-white{background:#fff;color:var(--c-primary-deep);border-color:#C7DEE8}
.btn-white:hover{background:#EAF5F9;color:var(--c-primary-deep);border-color:#9ACDDE}
.btn-light{background:#fff;color:var(--c-dark)}
.btn-light:hover{background:#DFF1F5;color:var(--c-dark)}
.btn-block{width:100%}
.btn-sm{padding:9px 14px;font-size:14px}
.nav-toggle{display:none}
.nav-toggle span{display:block;width:16px;height:2px;background:var(--c-title);margin:3px auto;border-radius:3px;transition:background .2s,transform .2s}

/* Hero */
.cat-hero{position:relative;padding:58px 0 52px;background:#FBFCFF;border-bottom:1px solid var(--c-border);overflow:hidden}
.cat-hero .hero-bg-img{position:absolute;inset:0;opacity:.09;background-image:url('/assets/images/backpic/back-1.png');background-repeat:no-repeat;background-size:cover;background-position:center}
.cat-hero .container{position:relative;z-index:2}
.crumb{display:flex;flex-wrap:wrap;gap:6px;font-size:13px;color:var(--c-muted);margin-bottom:22px}
.crumb a{color:var(--c-muted)}
.crumb a:hover{color:var(--c-primary)}
.crumb span{margin:0 2px}
.hero-eyebrow{display:inline-flex;align-items:center;gap:8px;background:#E0F2F6;border:1px solid #C3E4ED;border-radius:999px;color:var(--c-primary-deep);font-size:13px;font-weight:600;padding:5px 13px;margin-bottom:18px}
.hero-eyebrow .dot{width:7px;height:7px;border-radius:50%;background:var(--c-accent)}
.hero-title{margin-bottom:16px}
.hero-title .keep-key{white-space:nowrap}
.cat-hero .lead{font-size:17px;line-height:1.85;max-width:560px;color:var(--c-text);margin-bottom:26px}
.hero-points{list-style:none;display:grid;gap:7px;margin-bottom:24px}
.hero-points li{display:flex;align-items:flex-start;gap:10px;color:var(--c-text);font-size:14.5px}
.hero-points li .check{width:18px;height:18px;border-radius:50%;background:#E0F0E9;color:#207A5A;display:inline-flex;align-items:center;justify-content:center;font-size:11px;font-weight:700;flex:0 0 18px;margin-top:2px}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px}
.hero-panel{background:#fff;border:1px solid var(--c-border);border-radius:20px;box-shadow:var(--shadow-lg);padding:24px;margin-left:12px}
.panel-head{display:flex;align-items:center;justify-content:space-between;border-bottom:1px solid var(--c-border);padding-bottom:13px;margin-bottom:16px}
.panel-head .status{display:flex;align-items:center;gap:8px;font-weight:700;color:var(--c-title);font-size:15px}
.panel-head .pulse{width:8px;height:8px;border-radius:50%;background:#23A36C;box-shadow:0 0 0 4px rgba(35,163,108,.12)}
.panel-head .time{font-size:13px;color:var(--c-muted)}
.hero-step-list{list-style:none;display:grid}
.hero-step-list li{border-bottom:1px dashed var(--c-border)}
.hero-step-list li:last-child{border-bottom:none}
.hero-step-list a{display:flex;align-items:center;gap:10px;padding:13px 2px;color:var(--c-text);font-weight:500;font-size:14px}
.hero-step-list a:hover{color:var(--c-primary-deep)}
.hero-step-list em{font-style:normal;font-weight:800;color:var(--c-accent);width:26px;background:#EBF6F6;border-radius:8px;text-align:center;font-size:13px;padding:2px 0}
.hero-arrow{color:var(--c-muted);font-size:18px;margin-left:auto}
.hero-panel-foot{margin-top:14px;background:#EAF5F9;border-radius:12px;padding:11px 13px;font-size:13px;color:var(--c-primary-deep);line-height:1.6}

/* Overview strip */
.overview-strip{background:#fff;border-bottom:1px solid var(--c-border)}
.overview-inner{padding:20px 0;display:grid;grid-template-columns:repeat(4,1fr);gap:0}
.overview-item{display:flex;align-items:center;gap:12px;padding:6px 4px}
.overview-item .num{font-size:13px;font-weight:700;color:var(--c-muted);letter-spacing:.4px}
.overview-item .name{font-size:15px;font-weight:700;color:var(--c-title)}
.overview-item .desc{font-size:13px;color:var(--c-muted);line-height:1.4}
.overview-line{height:1px;background:linear-gradient(90deg,#126B85 0%,#126B85 25%,transparent 25%,transparent 50%,#126B85 50%,#126B85 75%,transparent 75%)}
.overview-item .ov-idx{display:inline-flex;align-items:center;justify-content:center;width:30px;height:30px;border-radius:50%;background:#EAF5F9;color:var(--c-primary-deep);font-size:13px;font-weight:800;flex:0 0 30px}

/* Guide layout */
.guide-layout{background:var(--c-bg);padding:70px 0 80px}
.guide-grid{position:relative}
.guide-aside .cell-inner{position:sticky;top:96px;display:flex;flex-direction:column;gap:18px}
.toc-card{background:var(--c-card);border:1px solid var(--c-border);border-radius:20px;box-shadow:var(--shadow-sm);padding:22px}
.toc-eyebrow{font-size:13px;color:var(--c-muted);letter-spacing:.8px;margin-bottom:12px;font-weight:600}
.toc-list{list-style:none;border-top:1px solid var(--c-border);display:grid}
.toc-list li{border-bottom:1px solid #ECF3F6}
.toc-list li:last-child{border-bottom:none}
.toc-list a{display:flex;gap:8px;align-items:baseline;padding:11px 2px;font-size:14px;font-weight:600;color:var(--c-title-line);color:var(--c-title)}
.toc-list a:hover{color:var(--c-primary)}
.toc-list a i{font-style:normal;font-weight:800;color:var(--c-accent);font-size:13px}
.toc-card .btn{margin-top:4px}
.help-more-card{background:#EDF7F9;border:1px solid #D3EDF3;border-radius:18px;padding:18px;font-size:14px;color:var(--c-text)}
.help-more-card strong{color:var(--c-title);display:block;margin-bottom:5px}
.help-more-card a{font-weight:600}

/* Timeline */
.timeline{display:grid;gap:20px}
.timeline-step{position:relative;background:var(--c-card);border:1px solid var(--c-border);border-radius:20px;box-shadow:var(--shadow-sm);padding:30px 30px 26px;margin-left:0;overflow:hidden}
.timeline-step::before{content:"";position:absolute;left:0;top:0;bottom:0;width:4px;background:var(--c-primary);opacity:.7}
.timeline-step .step-head{display:flex;align-items:flex-start;gap:14px;margin-bottom:16px}
.step-no{display:inline-flex;align-items:center;justify-content:center;background:var(--c-primary-deep);color:#fff;font-weight:800;font-size:15px;border-radius:10px;width:42px;height:42px;flex:0 0 42px}
.timeline-step .step-head h2{margin:2px 0 0}
.step-lead{font-size:15px;line-height:1.85;color:var(--c-text);margin-bottom:18px}
.guide-check-list,.guide-order-list,.action-list{list-style:none;display:grid;gap:9px;margin-bottom:16px}
.guide-check-list li,.guide-order-list li,.action-list li{display:flex;gap:11px;padding:13px 15px;background:#F8FBFD;border:1px solid #E8F1F4;border-radius:13px;font-size:14.5px;line-height:1.75;color:var(--c-text)}
.guide-check-list li:before{content:"✓";flex:0 0 22px;height:22px;border-radius:8px;background:#DDEFE7;color:#207A5A;display:inline-flex;align-items:center;justify-content:center;font-size:13px;font-weight:800;margin-top:2px}
.guide-order-list{counter-reset:order}
.guide-order-list li{counter-increment:order}
.guide-order-list li:before{content:"0" counter(order);font-family:inherit;flex:0 0 28px;height:28px;background:var(--c-primary);color:#fff;border-radius:9px;display:inline-flex;align-items:center;justify-content:center;font-size:12px;font-weight:800;margin-top:2px}
.action-list li:before{content:"›";flex:0 0 22px;height:22px;background:#EAF5F9;color:var(--c-primary);border-radius:8px;display:inline-flex;align-items:center;justify-content:center;font-size:18px;font-weight:800;margin-top:2px}
.callout-note{border:1px solid #D9EBEF;background:#EFF9FB;border-radius:14px;padding:15px 17px;color:var(--c-primary-deep);font-size:14px;line-height:1.75;margin:16px 0}
.callout--accent{border-color:#D6E7EF;background:#F7FBFD}
.callout-note strong{color:var(--c-title)}
.callout-icon{display:inline-flex;width:22px;height:22px;border-radius:50%;background:var(--c-accent);color:#fff;align-items:center;justify-content:center;margin-right:4px;font-size:13px}
.step-figure{margin:16px 0 0}
.step-figure figcaption{font-size:13px;color:var(--c-muted);text-align:center;padding-top:7px}
.step-extra-grid{display:grid;grid-template-columns:1fr 1fr;gap:12px;margin:8px 0 0}
.mini-card{border:1px solid #E3EDF1;border-radius:14px;padding:15px}
.mini-card h4{margin:0 0 7px;font-size:15px;color:var(--c-primary-deep)}
.mini-card p{font-size:14px;margin:0;line-height:1.7;color:var(--c-text)}

/* CTA banner */
.cta-band{background:var(--c-dark);color:#E6F0F2;position:relative;overflow:hidden}
.cta-band::before{content:"";position:absolute;inset:0;background:linear-gradient(90deg,rgba(30,154,148,.16),transparent 48%);pointer-events:none}
.cta-band .container{position:relative;padding-top:58px;padding-bottom:58px;display:flex;align-items:center;justify-content:space-between;gap:28px;flex-wrap:wrap}
.cta-band h2{color:#fff;margin-bottom:10px;font-size:clamp(24px,3vw,34px)}
.cta-band p{color:#CFE2E7;max-width:660px;font-size:15px;margin-bottom:0}
.cta-band .cta-actions{flex-shrink:0;display:flex;align-items:center;gap:14px}

/* Footer */
.site-footer{background:#0E3946;color:#C7D7DD;padding-top:60px}
.footer-grid{display:grid;grid-template-columns:2fr 1fr 1fr 1.2fr;gap:32px;padding-bottom:34px}
.site-footer .brand-text{color:#fff}
.site-footer p{font-size:14px;color:#B9CED5;max-width:300px}
.footer-brand .brand-logo{margin-bottom:8px}
.footer-col h4{color:#fff;font-size:15px;margin-bottom:13px}
.footer-col ul{list-style:none}
.footer-col li{margin-bottom:8px;font-size:14px;color:#B9CED5}
.footer-col a{font-size:14px;color:#D3E3E7}
.footer-col a:hover{color:#fff}
.footer-bottom{display:flex;justify-content:space-between;align-items:center;border-top:1px solid rgba(255,255,255,.12);padding:18px 0;font-size:13px;color:#9FBCC4;flex-wrap:wrap;gap:10px}
.footer-bottom .team-links a{margin-left:12px;color:#C3DADE}
.footer-bottom .team-links a:hover{color:#fff}
.copy-domain{color:rgba(255,255,255,.7)}

/* Responsive */
@media (max-width:1023px){
  .nav-toggle{display:block;background:none;border:1px solid var(--c-border);border-radius:10px;padding:9px 11px;cursor:pointer;margin-left:auto;order:3}
  .main-nav{position:fixed;top:0;right:0;height:100vh;width:280px;max-width:88vw;background:#fff;box-shadow:-10px 0 35px rgba(10,46,60,.12);margin:0;padding:86px 18px 24px;transform:translateX(105%);transition:transform .3s;display:flex;flex-direction:column;align-items:flex-start;overflow:auto;gap:20px;z-index:120}
  .site-header.nav-open .main-nav{transform:none}
  .nav-list{flex-direction:column;align-items:flex-start;width:100%;gap:4px}
  .nav-list .nav-link{width:100%;border-radius:12px;font-size:16px;padding:13px 16px}
  .mega-wrap{width:100%}
  .quick-trigger{width:100%;justify-content:space-between;border-radius:12px}
  .mega-panel{position:static;width:100%;max-width:100%;opacity:1;visibility:visible;transform:none;box-shadow:none;border:none;border-top:1px dashed var(--c-border);display:none;padding:14px 0 6px}
  .mega-wrap.open .mega-panel{display:block}
  .mega-grid{grid-template-columns:1fr 1fr}
  .mega-cta{margin-top:8px;grid-column:1 / -1}
  .brand-text{font-size:16px;white-space:normal}
  .brand-logo{max-width:calc(100vw - 100px)}
  .nav-open .nav-toggle span:first-child{transform:rotate(45deg) translate(1px,1px)}
  .nav-open .nav-toggle span:last-child{transform:rotate(-45deg) translate(1px,-1px)}
  .cat-hero .lead{max-width:100%}
  .hero-panel{margin-left:0;margin-top:28px}
  .cta-band .container .cta-actions{margin-left:0}
}

@media (max-width:767px){
  :root{--space:54px}
  .section-site{padding:54px 0}
  .overview-inner{grid-template-columns:1fr 1fr}
  .overview-item .desc{display:none}
  .mega-grid{grid-template-columns:1fr}
  .mega-cta{grid-column:auto}
  .footer-grid{grid-template-columns:1fr 1fr}
  .footer-brand{grid-column:1 / -1}
  .cta-band .container{padding-top:48px;padding-bottom:48px;flex-direction:column;align-items:flex-start}
  .cta-band .container .cta-actions{margin-left:0;flex-wrap:wrap}
  .cta-band .btn-light{background:#fff}
  .active-steps-adv{grid-template-columns:1fr}
  .guide-aside .cell-inner{position:static}
}

@media (max-width:520px){
  .container{padding-left:16px;padding-right:16px}
  .header-inner{min-height:64px;gap:12px}
  .brand-mark{width:30px;height:30px;font-size:16px;border-radius:9px}
  .brand-text{max-width:60vw;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;display:inline-block}
  .quick-trigger{font-size:13px}
  .overview-inner{grid-template-columns:1fr}
  .overview-item{justify-content:flex-start}
  .overview-item .desc{display:block}
  .step-extra-grid{grid-template-columns:1fr}
  .timeline-step{padding:22px 17px 20px}
  .footer-grid{grid-template-columns:1fr;gap:22px}
  .footer-bottom{flex-direction:column}
  .cat-hero{padding:38px 0 40px}
  h1{font-size:28px}
  .hero-actions .btn{width:100%}
  .hero-points{font-size:13px}
  .guide-layout{padding:44px 0 52px}
  .search-block{grid-template-columns:1fr}
}

/* roulang page: category4 */
:root{
  --brand:#126B85;
  --brand-deep:#0B4E63;
  --brand-darker:#083B4D;
  --ink:#0A3B4A;
  --accent:#1E9A94;
  --bg:#F4F8FA;
  --card:#FFFFFF;
  --line:#D9E6EC;
  --line-soft:#EDF4F7;
  --title:#14343E;
  --text:#425D66;
  --muted:#7A939B;
  --r-card:16px;
  --r-btn:10px;
  --r-pill:999px;
  --sh1:0 1px 2px rgba(10,46,60,.04), 0 6px 18px rgba(10,46,60,.05);
  --sh2:0 2px 4px rgba(10,46,60,.05), 0 16px 32px rgba(10,46,60,.09);
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC","Helvetica Neue",Arial,sans-serif;
  font-size:16px;
  line-height:1.75;
  color:var(--text);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;height:auto;display:block;border:0;}
a{color:var(--brand);text-decoration:none;transition:color .2s ease,background-color .2s ease,border-color .2s ease;}
a:hover{color:var(--brand-deep);}
button{font-family:inherit;}
h1,h2,h3,h4{margin:0;color:var(--title);font-weight:700;line-height:1.35;font-family:inherit;}
h1{font-size:clamp(27px,3.6vw,42px);line-height:1.22;letter-spacing:-.2px;}
h2{font-size:clamp(21px,2.2vw,29px);}
h3{font-size:18px;}
p{margin:0 0 1em;}
ul,ol{margin:0;padding:0;}
:focus-visible{outline:2px solid rgba(18,107,133,.5);outline-offset:2px;border-radius:6px;}
.container{width:100%;max-width:1232px;margin:0 auto;padding-left:16px;padding-right:16px;}
.grid-container{max-width:1232px;}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:12px 22px;border-radius:var(--r-btn);font-size:15px;font-weight:600;
  border:1px solid transparent;cursor:pointer;line-height:1.2;white-space:nowrap;
  transition:background-color .2s ease,color .2s ease,box-shadow .2s ease,transform .12s ease;
}
.btn-primary{background:var(--brand-deep);color:#fff;box-shadow:0 6px 14px rgba(11,78,99,.22);}
.btn-primary:hover{background:var(--brand-darker);color:#fff;box-shadow:0 10px 22px rgba(11,78,99,.28);}
.btn-primary:active{transform:translateY(1px);box-shadow:0 4px 10px rgba(11,78,99,.2);}
.btn-ghost{background:#fff;color:var(--brand-deep);border-color:#BFDBE5;}
.btn-ghost:hover{background:#EAF5F9;color:var(--brand-deep);border-color:var(--brand);}
.btn-white{background:#fff;color:var(--brand-deep);border-color:#fff;}
.btn-white:hover{background:#EAF5F9;color:var(--brand-deep);}
.btn-block{width:100%;}
.btn-sm{padding:9px 16px;font-size:13.5px;}

/* ---------- 标签 ---------- */
.tag{
  display:inline-flex;align-items:center;height:26px;padding:0 12px;
  border-radius:var(--r-pill);background:#EAF5F9;color:var(--brand-deep);
  font-size:12.5px;font-weight:600;letter-spacing:.02em;
}

/* ---------- 头部 ---------- */
.site-header{
  position:sticky;top:0;z-index:120;
  background:rgba(255,255,255,.97);
  border-bottom:1px solid var(--line);
}
.header-inner{display:flex;align-items:center;justify-content:space-between;gap:20px;height:72px;}
.brand-logo{display:inline-flex;align-items:center;gap:10px;color:var(--title);font-weight:700;flex:0 0 auto;}
.brand-logo:hover{color:var(--title);}
.brand-mark{
  width:32px;height:32px;border-radius:9px;flex:0 0 auto;
  background:linear-gradient(135deg,var(--brand),var(--brand-deep));
  color:#fff;display:flex;align-items:center;justify-content:center;
  font-size:16px;font-weight:700;line-height:1;
}
.brand-text{font-size:17px;letter-spacing:.2px;white-space:nowrap;}
.main-nav{display:flex;align-items:center;gap:10px;}
.nav-list{display:flex;align-items:center;gap:4px;list-style:none;}
.nav-link{
  display:inline-block;padding:8px 12px;border-radius:8px;font-size:15px;
  color:#3C565F;font-weight:500;
}
.nav-link:hover{color:var(--brand-deep);background:#EAF5F9;}
.nav-link.active{color:var(--brand);background:#EAF5F9;font-weight:700;}
.mega-wrap{position:relative;}
.quick-trigger{
  display:inline-flex;align-items:center;gap:6px;padding:8px 14px;
  border-radius:var(--r-pill);border:1px solid var(--line);background:#fff;
  font-size:14px;color:var(--brand-deep);cursor:pointer;user-select:none;
  transition:background-color .2s ease,border-color .2s ease;
}
.quick-trigger:hover{border-color:var(--brand);background:#EAF5F9;}
.quick-trigger .arrow{font-size:11px;line-height:1;transition:transform .2s ease;}
.mega-wrap.open .quick-trigger .arrow{transform:rotate(180deg);}
.mega-panel{
  position:absolute;top:calc(100% + 12px);right:0;width:580px;z-index:60;
  background:#fff;border:1px solid var(--line);border-radius:var(--r-card);
  box-shadow:var(--sh2);padding:20px;
  opacity:0;visibility:hidden;transform:translateY(-6px);
  transition:opacity .2s ease,transform .2s ease,visibility .2s;
}
.mega-wrap.open .mega-panel,
.mega-wrap:hover .mega-panel{opacity:1;visibility:visible;transform:translateY(0);}
.mega-grid{display:grid;grid-template-columns:1fr 1fr 152px;gap:18px;}
.mega-heading{
  font-size:12px;letter-spacing:.1em;color:var(--muted);font-weight:700;
  margin:0 0 10px;text-transform:uppercase;
}
.mega-list,.mega-news{list-style:none;}
.mega-list li,.mega-news li{padding:5px 0;}
.mega-list a,.mega-news a{font-size:13.5px;color:#3C565F;line-height:1.6;display:block;}
.mega-list a:hover,.mega-news a:hover{color:var(--brand);}
.mega-cta{background:#EAF5F9;border-radius:12px;padding:14px;display:flex;flex-direction:column;gap:10px;justify-content:center;}
.mega-cta p{margin:0;font-size:13px;line-height:1.6;color:var(--brand-deep);font-weight:600;}
.nav-toggle{
  display:none;width:44px;height:44px;border:1px solid var(--line);background:#fff;
  border-radius:10px;cursor:pointer;position:relative;
}
.nav-toggle span,.nav-toggle span::before,.nav-toggle span::after{
  position:absolute;left:50%;width:18px;height:2px;background:var(--brand-deep);border-radius:2px;
  transform:translateX(-50%);transition:transform .22s ease,opacity .22s ease;
}
.nav-toggle span{top:50%;margin-top:-1px;}
.nav-toggle span::before{content:"";top:-6px;left:0;transform:none;}
.nav-toggle span::after{content:"";top:6px;left:0;transform:none;}
.nav-toggle[aria-expanded="true"] span{background:transparent;}
.nav-toggle[aria-expanded="true"] span::before{transform:rotate(45deg) translateY(6px);}
.nav-toggle[aria-expanded="true"] span::after{transform:rotate(-45deg) translateY(-6px);}

/* ---------- 页面主视觉 ---------- */
.page-hero{position:relative;padding:56px 0 52px;overflow:hidden;background:#EFF7FA;}
.page-hero::before{
  content:"";position:absolute;inset:0;
  background-image:url('/assets/images/backpic/back-2.png');
  background-size:cover;background-position:center;opacity:.28;
}
.page-hero::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(255,255,255,.9) 0%,rgba(244,248,250,.95) 100%);
}
.page-hero .container{position:relative;z-index:2;}
.crumb{display:flex;align-items:center;gap:8px;font-size:13.5px;color:var(--muted);margin-bottom:18px;flex-wrap:wrap;}
.crumb a{color:var(--muted);}
.crumb a:hover{color:var(--brand);}
.crumb span{color:#A9BFC7;}
.crumb .crumb-current{color:var(--brand-deep);font-weight:600;}
.hero-title{max-width:880px;}
.hero-sub{max-width:720px;margin:16px 0 0;font-size:16.5px;color:var(--text);line-height:1.8;}
.search-box{
  display:flex;gap:10px;align-items:center;max-width:700px;margin-top:28px;
  background:#fff;border:1px solid var(--line);border-radius:14px;padding:8px 8px 8px 4px;
  box-shadow:var(--sh1);
}
.search-box input[type="search"]{
  flex:1 1 auto;min-width:0;border:0;outline:none;background:transparent;
  padding:12px 14px;font-size:15px;color:var(--title);font-family:inherit;
}
.search-box input[type="search"]::placeholder{color:#9CB3BC;}
.hot-terms{display:flex;align-items:center;gap:8px;flex-wrap:wrap;margin-top:18px;}
.hot-label{font-size:13px;color:var(--muted);margin-right:2px;}
.term-chip{
  padding:7px 14px;min-height:36px;border-radius:var(--r-pill);
  border:1px solid var(--line);background:#fff;color:var(--brand-deep);
  font-size:13.5px;cursor:pointer;transition:background-color .2s ease,border-color .2s ease;
}
.term-chip:hover{background:#EAF5F9;border-color:#BFDBE5;}

/* ---------- 快捷分类条 ---------- */
.quick-strip{background:#fff;border-bottom:1px solid var(--line);}
.quick-strip-inner{display:flex;flex-wrap:wrap;align-items:center;gap:10px;padding:16px 0;}
.strip-label{font-size:13px;color:var(--muted);margin-right:4px;}
.chip{
  display:inline-flex;align-items:center;padding:8px 15px;min-height:40px;
  border:1px solid var(--line);border-radius:var(--r-pill);background:#F8FCFD;
  color:var(--brand-deep);font-size:14px;font-weight:500;
}
.chip:hover{background:#EAF5F9;border-color:#BFDBE5;color:var(--brand-deep);}

/* ---------- 通用板块 ---------- */
.section{padding:80px 0;}
.section--alt{background:#EDF5F8;}
.section-head{max-width:780px;margin-bottom:34px;}
.eyebrow{
  display:inline-block;font-size:12.5px;font-weight:700;letter-spacing:.14em;
  color:var(--brand);margin-bottom:10px;text-transform:uppercase;
}
.section-head p{font-size:15.5px;color:var(--text);margin:12px 0 0;}

/* ---------- 问题主体 ---------- */
.faq-main{min-width:0;}
.faq-side{min-width:0;}
.faq-side-inner{position:sticky;top:96px;}
.faq-group{margin-bottom:34px;}
.faq-group.is-hidden{display:none;}
.faq-group-head{display:flex;align-items:center;gap:12px;margin-bottom:16px;}
.g-index{
  display:inline-flex;align-items:center;justify-content:center;
  width:30px;height:30px;border-radius:9px;background:#EAF5F9;
  color:var(--brand-deep);font-size:13px;font-weight:700;flex:0 0 auto;
}
.faq-group-head h3{font-size:19px;}
.acc-item{
  background:#fff;border:1px solid var(--line);border-radius:14px;
  margin-bottom:12px;overflow:hidden;
  transition:box-shadow .2s ease,border-color .2s ease;
}
.acc-item:hover{box-shadow:var(--sh1);}
.acc-item.open{border-color:#BFDBE5;box-shadow:var(--sh1);}
.acc-item.is-hidden{display:none;}
.acc-q{
  width:100%;display:flex;align-items:flex-start;justify-content:space-between;gap:16px;
  text-align:left;padding:18px 20px;background:none;border:0;cursor:pointer;
  font-size:16px;font-weight:600;color:var(--title);line-height:1.6;
}
.acc-q:hover{color:var(--brand-deep);}
.acc-icon{
  flex:0 0 auto;width:22px;height:22px;border-radius:50%;border:1px solid #BFDBE5;
  color:var(--brand);display:flex;align-items:center;justify-content:center;
  font-size:14px;line-height:1;margin-top:3px;
  transition:transform .22s ease,background-color .22s ease,color .22s ease;
}
.acc-item.open .acc-icon{background:var(--brand-deep);border-color:var(--brand-deep);color:#fff;transform:rotate(45deg);}
.acc-a{max-height:0;overflow:hidden;transition:max-height .3s ease;}
.acc-item.open .acc-a{max-height:560px;}
.acc-a-body{
  padding:0 20px 20px;font-size:15px;line-height:1.85;color:var(--text);
  border-top:1px solid var(--line-soft);margin:0 20px;padding-left:0;padding-right:0;padding-top:14px;
}
.acc-a-body p{margin:0;}
.empty-state{
  display:none;margin-top:8px;padding:30px 24px;text-align:center;
  border:1px dashed #B9D3DD;border-radius:14px;background:#FBFDFE;
  color:var(--muted);font-size:14.5px;line-height:1.8;
}
.empty-state.show{display:block;}

/* ---------- 侧栏卡片 ---------- */
.side-card{
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);
  padding:24px;box-shadow:var(--sh1);margin-bottom:20px;
}
.side-card h3{font-size:18px;margin-bottom:10px;}
.side-lead{font-size:14.5px;color:var(--text);margin:0 0 6px;}
.side-card--soft{background:#F8FCFD;box-shadow:none;}
.check-list{list-style:none;margin:14px 0 20px;}
.check-list li{
  position:relative;padding-left:24px;font-size:14.5px;line-height:1.75;
  color:var(--text);margin-bottom:10px;
}
.check-list li::before{
  content:"";position:absolute;left:6px;top:9px;width:7px;height:7px;
  border-radius:50%;background:var(--accent);
}
.side-note{margin:14px 0 0;font-size:13px;color:var(--muted);line-height:1.7;}
.link-list{list-style:none;}
.link-list li{border-bottom:1px solid var(--line-soft);}
.link-list li:last-child{border-bottom:0;}
.link-list a{
  display:flex;align-items:center;min-height:44px;padding:10px 0;
  font-size:14.5px;color:var(--brand-deep);line-height:1.6;
}
.link-list a:hover{color:var(--brand);}
.link-list a::after{content:"›";margin-left:auto;color:#A9BFC7;font-size:18px;line-height:1;}

/* ---------- 补充排查 ---------- */
.check-layout{display:grid;grid-template-columns:5fr 7fr;gap:52px;align-items:center;}
.check-figure img{
  width:100%;aspect-ratio:4/3;object-fit:cover;border-radius:var(--r-card);
  box-shadow:var(--sh1);
}
.check-body h2{margin-bottom:10px;}
.check-body .check-intro{font-size:15.5px;color:var(--text);margin:0;}
.step-list{list-style:none;counter-reset:step;margin:26px 0 0;}
.step-list li{position:relative;counter-increment:step;padding-left:58px;margin-bottom:22px;}
.step-list li:last-child{margin-bottom:0;}
.step-list li::before{
  content:"0" counter(step);position:absolute;left:0;top:0;
  width:40px;height:40px;border-radius:12px;background:#fff;border:1px solid var(--line);
  color:var(--brand-deep);font-weight:700;font-size:14px;
  display:flex;align-items:center;justify-content:center;
}
.step-list h3{font-size:16.5px;margin-bottom:6px;}
.step-list p{font-size:14.8px;color:var(--text);margin:0;line-height:1.8;}

/* ---------- 底部服务引导条 ---------- */
.guide-bar{background:#fff;border-top:1px solid var(--line);border-bottom:1px solid var(--line);padding:40px 0;}
.guide-bar-inner{display:flex;align-items:center;justify-content:space-between;gap:28px;flex-wrap:wrap;}
.guide-text h2{font-size:22px;margin-bottom:8px;}
.guide-text p{margin:0;font-size:15px;color:var(--text);max-width:660px;line-height:1.8;}
.guide-actions{display:flex;gap:12px;flex-wrap:wrap;}

/* ---------- 页脚 ---------- */
.site-footer{background:#123742;color:#C3D8E0;padding:64px 0 0;}
.footer-grid{display:grid;grid-template-columns:1.7fr 1fr 1fr 1.3fr;gap:36px;}
.footer-brand .brand-logo{color:#fff;}
.footer-brand .brand-logo:hover{color:#fff;}
.footer-brand .brand-text{color:#fff;}
.footer-brand p{margin:16px 0 0;font-size:14.5px;line-height:1.85;color:#9DBBC5;max-width:340px;}
.footer-col h4{color:#fff;font-size:15px;margin-bottom:16px;letter-spacing:.02em;}
.footer-col ul{list-style:none;}
.footer-col li{font-size:14.5px;color:#9DBBC5;margin-bottom:12px;line-height:1.75;}
.footer-col a{color:#9DBBC5;}
.footer-col a:hover{color:#fff;}
.footer-bottom{
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  border-top:1px solid rgba(255,255,255,.12);margin-top:48px;padding:22px 0 28px;
  font-size:13.5px;color:#7FA0AB;
}
.team-links{display:flex;gap:20px;flex-wrap:wrap;}
.team-links a{color:#9DBBC5;}
.team-links a:hover{color:#fff;}

/* ---------- 响应式 ---------- */
@media screen and (max-width:1023px){
  .nav-toggle{display:block;}
  .main-nav{
    position:absolute;left:0;right:0;top:72px;
    display:none;flex-direction:column;align-items:stretch;gap:2px;
    background:#fff;border-bottom:1px solid var(--line);
    box-shadow:0 18px 30px rgba(10,46,60,.1);
    padding:12px 16px 20px;
  }
  .main-nav.nav-open{display:flex;}
  .nav-list{flex-direction:column;align-items:stretch;gap:2px;}
  .nav-link{display:flex;align-items:center;min-height:44px;padding:12px 14px;font-size:15px;}
  .mega-wrap{width:100%;}
  .quick-trigger{width:100%;justify-content:space-between;min-height:44px;padding:12px 14px;font-size:15px;}
  .mega-panel{
    position:static;width:100%;opacity:1;visibility:visible;transform:none;
    display:none;box-shadow:none;border:0;background:#F5FAFC;margin-top:6px;padding:16px;
  }
  .mega-wrap.open .mega-panel{display:block;}
  .mega-wrap:hover .mega-panel{display:none;}
  .mega-wrap.open:hover .mega-panel{display:block;}
  .mega-grid{grid-template-columns:1fr;}
  .faq-side-inner{position:static;}
  .check-layout{grid-template-columns:1fr;gap:30px;}
  .check-figure img{aspect-ratio:16/9;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:30px;}
}
@media screen and (max-width:767px){
  .section{padding:56px 0;}
  .page-hero{padding:36px 0 40px;}
  .search-box{flex-direction:column;align-items:stretch;padding:10px;gap:8px;}
  .search-box input[type="search"]{padding:10px 8px;}
  .hero-sub{font-size:15.5px;}
  .guide-bar{padding:32px 0;}
  .guide-text h2{font-size:20px;}
  .guide-actions{width:100%;}
  .guide-actions .btn{flex:1 1 auto;}
  .acc-q{font-size:15.5px;padding:16px 16px;}
  .acc-a-body{margin:0 16px;padding-top:12px;}
  .step-list li{padding-left:50px;}
  .step-list li::before{width:36px;height:36px;font-size:13px;}
}
@media screen and (max-width:520px){
  .brand-text{font-size:15px;white-space:normal;line-height:1.3;}
  .header-inner{gap:10px;}
  .footer-grid{grid-template-columns:1fr;}
  .footer-bottom{flex-direction:column;align-items:flex-start;}
  .side-card{padding:20px;}
}