/* roulang page: index */
:root{
  --bg-deep:#070d15;
  --bg-dark:#0b1520;
  --bg-soft:#0e1b2a;
  --panel:rgba(255,255,255,.065);
  --panel-light:rgba(255,255,255,.085);
  --panel-dark:rgba(0,0,0,.22);
  --line:rgba(255,255,255,.12);
  --line-soft:rgba(255,255,255,.08);
  --cyan:#00A7E1;
  --blue:#0E86D4;
  --amber:#F5B544;
  --text-hi:#F4F8FC;
  --text:#C5D1DC;
  --text-dim:#8EA3B4;
  --radius:16px;
  --radius-lg:20px;
  --radius-sm:10px;
  --shadow:0 18px 40px rgba(0,0,0,.38);
  --glow:0 0 0 4px rgba(0,167,225,.16),0 8px 30px rgba(0,167,225,.18);
  --grad-main:linear-gradient(135deg,#00A7E1,#0E86D4);
  --grad-amber:linear-gradient(135deg,#F5B544,#DF8A2A);
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{
  font-family:"Noto Sans SC","PingFang SC","Microsoft YaHei",system-ui,-apple-system,sans-serif;
  background:var(--bg-deep);
  color:var(--text);
  line-height:1.75;
  font-size:16px;
  -webkit-font-smoothing:antialiased;
}
a{color:var(--cyan);text-decoration:none}
a:hover{color:var(--amber)}
ul,ol{list-style:none}
img{max-width:100%;display:block}
button,input,textarea,select{font-family:inherit}
.container{max-width:1200px;margin:0 auto;padding:0 clamp(18px,4vw,44px)}
.site-shell{display:flex;min-height:100vh}
.main-area{margin-left:260px;flex:1;min-width:0;display:flex;flex-direction:column}
::-webkit-scrollbar{width:10px;height:10px}
::-webkit-scrollbar-track{background:var(--bg-deep)}
::-webkit-scrollbar-thumb{background:#213244;border-radius:6px}
::-webkit-scrollbar-thumb:hover{background:#2c4259}

/* 侧边导航 */
.sidebar{
  position:fixed;inset:0 auto 0 0;width:260px;z-index:60;
  display:flex;flex-direction:column;
  background:linear-gradient(180deg,#0b1420 0%,#0a111b 100%);
  border-right:1px solid var(--line-soft);
  padding:0 0 18px;
  transition:transform .35s ease;
}
.sidebar-logo{
  height:84px;display:flex;align-items:center;justify-content:space-between;
  padding:0 22px;border-bottom:1px solid var(--line-soft);
  background:linear-gradient(180deg,rgba(255,255,255,.03),transparent);
}
.brand{display:flex;flex-direction:column;line-height:1.2}
.brand-main{
  font-size:21px;font-weight:900;color:#fff;letter-spacing:.02em;
}
.brand-main span{color:var(--cyan)}
.brand-sub{font-size:12px;color:var(--text-dim);letter-spacing:.08em;margin-top:2px}
.logo-mark{
  width:42px;height:42px;border-radius:12px;flex:0 0 auto;
  background:var(--grad-main);color:#fff;display:flex;align-items:center;justify-content:center;
  font-size:20px;box-shadow:0 8px 22px rgba(0,167,225,.3);
}
.side-nav{padding:16px 12px;flex:1}
.side-link{
  display:flex;align-items:center;gap:12px;height:48px;padding:0 14px;
  margin-bottom:4px;border-radius:12px;border-left:3px solid transparent;
  color:var(--text-dim);font-size:15px;font-weight:500;position:relative;
  transition:background .22s,border-color .22s,color .22s;
}
.side-link i{width:20px;text-align:center;font-size:15px;color:var(--text-dim);transition:color .22s}
.side-link:hover{color:var(--text-hi);background:rgba(255,255,255,.04)}
.side-link:hover i{color:var(--cyan)}
.side-link.active{
  color:#fff;background:linear-gradient(90deg,rgba(0,167,225,.16),rgba(255,255,255,.03));
  border-left-color:var(--cyan);
}
.side-link.active i{color:var(--cyan)}
.side-link .nav-num{margin-left:auto;font-size:11px;color:rgba(255,255,255,.22);font-family:"Rajdhani","Arial Black",sans-serif}
.sidebar-foot{
  padding:16px 20px;margin:0 12px;border-radius:14px;
  background:var(--panel-dark);border:1px solid var(--line-soft);
}
.side-foot-title{display:flex;align-items:center;gap:8px;color:var(--text-hi);font-size:13px;font-weight:600}
.side-foot-title .pulse-dot{width:8px;height:8px;border-radius:50%;background:#34E3A1;box-shadow:0 0 0 4px rgba(52,227,161,.13)}
.side-foot-text{color:var(--text-dim);font-size:12px;margin-top:3px;line-height:1.5}

/* 移动端遮罩 */
.drawer-mask{
  display:none;position:fixed;inset:0;background:rgba(4,8,14,.6);
  backdrop-filter:blur(2px);z-index:55;opacity:0;transition:opacity .3s;
}

/* 顶部栏 */
.topbar{
  position:sticky;top:0;z-index:50;
  height:64px;display:flex;align-items:center;justify-content:space-between;
  padding:0 clamp(16px,3vw,36px);
  background:rgba(9,15,24,.82);
  backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);
  border-bottom:1px solid var(--line-soft);
}
.topbar-left{display:flex;align-items:center;gap:10px}
.nav-toggle{
  display:none;width:40px;height:40px;border-radius:10px;border:1px solid var(--line-soft);
  background:rgba(255,255,255,.06);color:var(--text-hi);font-size:17px;cursor:pointer;
  align-items:center;justify-content:center;transition:all .2s;
}
.nav-toggle:hover{border-color:var(--cyan);color:var(--cyan)}
.mobile-brand{display:none;font-size:16px;font-weight:800;color:#fff;letter-spacing:.01em}
.topbar-right{display:flex;align-items:center;gap:16px}
.status-label{
  display:inline-flex;align-items:center;gap:8px;font-size:13px;color:var(--text-dim);
}
.status-label .pulse-dot{width:8px;height:8px;border-radius:50%;background:#34E3A1;box-shadow:0 0 0 4px rgba(52,227,161,.12)}
.status-label b{color:var(--text-hi);font-weight:600}

/* 按钮 */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  font-size:15px;font-weight:600;line-height:1;border-radius:10px;
  padding:0 22px;min-height:44px;border:1px solid transparent;
  cursor:pointer;transition:all .25s ease;
}
.btn i{font-size:14px}
.btn-primary{
  background:var(--grad-main);color:#fff;
  box-shadow:0 8px 24px rgba(0,167,225,.28);
}
.btn-primary:hover{
  color:#fff;background:linear-gradient(135deg,#18b7f0,#0e86d4);
  box-shadow:var(--glow);transform:translateY(-2px);
}
.btn-ghost{
  background:rgba(255,255,255,.05);border-color:var(--line);color:var(--text-hi);
}
.btn-ghost:hover{
  border-color:var(--cyan);color:var(--cyan);background:rgba(0,167,225,.07);
}
.btn-amber{
  background:var(--grad-amber);color:#10151b;
}
.btn-amber:hover{box-shadow:0 10px 30px rgba(245,181,68,.30);transform:translateY(-2px);color:#10151b}
.btn-sm{min-height:38px;padding:0 16px;font-size:14px;border-radius:9px}
.btn-lg{min-height:52px;padding:0 30px;font-size:16px}

/* Hero */
.hero{
  position:relative;overflow:hidden;
  padding:76px 0 70px;
  background:
    radial-gradient(circle at 78% 16%,rgba(0,167,225,.20) 0%,transparent 32%),
    radial-gradient(circle at 22% 92%,rgba(245,181,68,.08) 0%,transparent 28%),
    var(--bg-dark);
}
.hero-bg-img{
  position:absolute;inset:0;z-index:0;opacity:.2;
  background-image:url('/assets/images/backpic/back-1.png');
  background-size:cover;background-position:center;
}
.hero-bg-img::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(90deg,rgba(10,17,27,.42) 0%,rgba(10,17,27,.06) 65%,rgba(10,17,27,.35) 100%);
}
.hero-grid{
  position:relative;z-index:2;
  display:grid;grid-template-columns:1.12fr .88fr;gap:50px;align-items:center;
}
.hero-badge{
  display:inline-flex;align-items:center;gap:8px;
  background:rgba(0,167,225,.10);border:1px solid rgba(0,167,225,.28);
  color:var(--cyan);border-radius:100px;padding:6px 14px;font-size:13px;
  font-weight:500;margin-bottom:18px;
}
.hero-badge .pulse-dot{width:7px;height:7px;border-radius:50%;background:var(--cyan);box-shadow:0 0 0 4px rgba(0,167,225,.15)}
.hero-title{
  color:var(--text-hi);font-size:clamp(34px,4.2vw,54px);
  font-weight:900;line-height:1.2;letter-spacing:.01em;margin-bottom:18px;
}
.hero-title span{color:var(--cyan);display:inline-block}
.hero-desc{
  font-size:16px;color:var(--text-dim);line-height:1.9;
  max-width:540px;margin-bottom:30px;
}
.hero-actions{display:flex;gap:14px;flex-wrap:wrap}
.hero-points{margin-top:34px;display:flex;gap:10px 28px;flex-wrap:wrap}
.point-item{display:flex;align-items:center;gap:8px;color:var(--text-dim);font-size:14px}
.point-item i{color:var(--amber);font-size:14px}

.entrance-card{
  background:linear-gradient(160deg,rgba(255,255,255,.10),rgba(255,255,255,.04));
  border:1px solid rgba(255,255,255,.16);
  border-radius:20px;backdrop-filter:blur(16px);-webkit-backdrop-filter:blur(16px);
  padding:24px;box-shadow:var(--shadow);
  position:relative;overflow:hidden;
}
.entrance-card::before{
  content:"";position:absolute;top:0;right:0;width:180px;height:180px;
  background:radial-gradient(circle,rgba(0,167,225,.18),transparent 70%);
}
.ec-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:20px}
.ec-head-left{display:flex;align-items:center;gap:10px;color:var(--text-hi);font-weight:600;font-size:15px}
.ec-head-left i{color:var(--cyan);font-size:17px}
.ec-state{display:inline-flex;align-items:center;gap:6px;font-size:12px;color:#34E3A1;background:rgba(52,227,161,.10);padding:4px 10px;border-radius:100px;border:1px solid rgba(52,227,161,.2)}
.ec-line{
  display:flex;flex-direction:column;gap:10px;margin-bottom:18px;
}
.ec-line-row{
  display:flex;align-items:center;justify-content:space-between;
  border:1px solid rgba(255,255,255,.13);background:rgba(0,0,0,.25);
  border-radius:10px;padding:12px 14px;
}
.ec-line-row span{color:var(--text-dim);font-size:13px}
.ec-line-row i{color:var(--amber);font-size:13px}
.ec-grid{
  display:grid;grid-template-columns:1fr 1fr;gap:10px;margin-bottom:18px;
}
.ec-grid-col{
  background:rgba(255,255,255,.05);border:1px solid rgba(255,255,255,.08);
  border-radius:12px;padding:12px;text-align:center;
}
.ec-grid-col .ec-icon{
  width:34px;height:34px;margin:0 auto 8px;border-radius:9px;
  background:rgba(0,167,225,.15);color:var(--cyan);
  display:flex;align-items:center;justify-content:center;font-size:15px;
}
.ec-grid-col p{font-size:12px;color:var(--text-dim);line-height:1.4}
.ec-btn{
  width:100%;display:flex;align-items:center;justify-content:center;gap:8px;
  padding:13px;background:var(--grad-main);color:#fff;border-radius:10px;
  font-size:14px;font-weight:600;transition:box-shadow .25s;
}
.ec-btn:hover{color:#fff;box-shadow:var(--glow)}
.ec-tip{font-size:12px;color:var(--text-dim);text-align:center;margin-top:12px;letter-spacing:.03em}

/* 通用区块 */
.section{padding:84px 0;position:relative}
.section-soft{background:rgba(8,15,25,.55)}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;font-weight:600;color:var(--cyan);
  background:rgba(0,167,225,.08);border:1px solid rgba(0,167,225,.2);
  padding:6px 14px;border-radius:100px;margin-bottom:16px;
}
.section-title{
  color:var(--text-hi);font-weight:800;
  font-size:clamp(24px,3vw,33px);line-height:1.3;margin-bottom:14px;
  position:relative;
}
.section-desc{max-width:620px;color:var(--text-dim);font-size:16px}
.sec-head{margin-bottom:44px}

/* 服务模块 */
.service-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px}
.service-card,.service-card-large{position:relative;border-radius:var(--radius-lg);background:var(--panel);border:1px solid var(--line-soft);overflow:hidden;transition:all .28s ease}
.service-card:hover,.service-card-large:hover{transform:translateY(-5px);border-color:rgba(0,167,225,.35);background:var(--panel-light);box-shadow:0 20px 44px rgba(0,0,0,.36)}
.service-card-large{
  grid-column:span 4;
  display:grid;grid-template-columns:1.2fr .8fr;min-height:320px;
}
.service-card{grid-column:span 2;min-height:270px;padding:28px 26px}
.service-card:nth-child(3){margin-top:44px}
.service-card:nth-child(4){margin-top:-20px}
.service-card-body{display:flex;flex-direction:column;align-items:flex-start;padding:32px;position:relative;z-index:2}
.service-card-title{font-size:23px;color:var(--text-hi);font-weight:800;margin-bottom:14px;line-height:1.35}
.service-card-title .mark{color:var(--amber)}
.service-text{font-size:14px;color:var(--text-dim);line-height:1.85;margin-bottom:24px}
.service-link{
  display:inline-flex;align-items:center;gap:8px;font-size:14px;font-weight:600;
  color:var(--cyan);border-bottom:1px solid transparent;transition:all .22s;
}
.service-link i{transition:transform .22s}
.service-link:hover{color:var(--amber);border-bottom-color:var(--amber)}
.service-link:hover i{transform:translateX(4px)}
.service-media{position:relative}
.service-media img{width:100%;height:100%;object-fit:cover;min-height:200px}
.service-media::after{content:"";position:absolute;inset:0;background:linear-gradient(90deg,var(--bg-dark) 0%,rgba(10,17,27,.05) 60%,rgba(10,17,27,0) 100%)}
.service-media::before{
  content:"";position:absolute;inset:0;z-index:2;opacity:.16;
  background-image:linear-gradient(rgba(255,255,255,.25) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.2) 1px,transparent 1px);
  background-size:32px 32px;
}
.e-icon{
  width:46px;height:46px;border-radius:12px;margin-bottom:18px;
  background:rgba(0,167,225,.12);border:1px solid rgba(0,167,225,.25);
  color:var(--cyan);display:flex;align-items:center;justify-content:center;font-size:20px;
}
.service-card-gold .e-icon{background:rgba(245,181,68,.12);border-color:rgba(245,181,68,.25);color:var(--amber)}
.service-card-body h3{font-size:19px;color:var(--text-hi);font-weight:700;margin-bottom:10px;line-height:1.4}

/* 数据看板 */
.kpi-section{position:relative}
.kpi-bg{
  position:absolute;inset:0;z-index:0;opacity:.18;
  background-image:url('/assets/images/backpic/back-2.png');
  background-size:cover;background-position:center;
}
.kpi-board{
  position:relative;z-index:2;border-radius:22px;overflow:hidden;
  background:linear-gradient(150deg,rgba(255,255,255,.09),rgba(255,255,255,.03));
  border:1px solid var(--line);backdrop-filter:blur(10px);
}
.kpi-board-inner{padding:44px 44px 32px}
.kpi-top{display:flex;justify-content:space-between;gap:20px;flex-wrap:wrap;margin-bottom:28px}
.kpi-top h3{font-size:20px;color:var(--text-hi);font-weight:700}
.kpi-top p{font-size:14px;color:var(--text-dim);margin-top:4px}
.kpi-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}
.kpi-item{
  background:rgba(0,0,0,.2);border:1px solid var(--line-soft);
  border-radius:16px;padding:24px 20px;position:relative;overflow:hidden;
}
.kpi-item::after{
  content:"";position:absolute;top:0;left:0;width:4px;height:40px;
  background:linear-gradient(180deg,var(--cyan),transparent);border-radius:0 0 4px 0;
}
.kpi-value{
  font-size:44px;font-weight:900;color:var(--amber);line-height:1.1;
  font-family:"Rajdhani","Arial Black","PingFang SC",sans-serif;letter-spacing:.01em;
}
.kpi-value small{font-size:16px;font-weight:700;margin-left:4px}
.kpi-label{margin-top:10px;font-size:14px;color:var(--text-hi);font-weight:500}
.kpi-note{
  border-top:1px solid var(--line-soft);margin-top:28px;padding-top:18px;
  font-size:13px;color:var(--text-dim);
}
.kpi-note i{color:var(--amber);margin-right:6px}

/* 场景区 */
.scene-row{
  display:grid;grid-template-columns:1.05fr .95fr;gap:52px;align-items:center;
  margin-bottom:72px;
}
.scene-row:last-child{margin-bottom:0}
.scene-row:nth-child(even) .scene-media{order:2}
.scene-media{
  border-radius:20px;overflow:hidden;position:relative;
  box-shadow:var(--shadow);border:1px solid var(--line-soft);
}
.scene-media img{width:100%;height:100%;object-fit:cover;aspect-ratio:4/3;transition:transform .5s}
.scene-row:hover .scene-media img{transform:scale(1.03)}
.scene-media::after{content:"";position:absolute;inset:0;background:linear-gradient(160deg,transparent,rgba(0,0,0,.35))}
.scene-meta .eyebrow{margin-bottom:12px}
.scene-title{font-size:28px;color:var(--text-hi);font-weight:800;line-height:1.4;margin-bottom:16px}
.scene-copy{font-size:16px;color:var(--text-dim);line-height:1.95;margin-bottom:22px}
.scene-list{display:flex;flex-direction:column;gap:12px}
.scene-list li{display:flex;align-items:flex-start;gap:10px;color:var(--text);font-size:15px}
.scene-list li i{color:var(--amber);margin-top:6px;font-size:13px}

/* 流程区 */
.flow-section{
  background:linear-gradient(180deg,rgba(8,15,25,.3),rgba(8,15,25,.75));
  border-top:1px solid var(--line-soft);
  border-bottom:1px solid var(--line-soft);
}
.flow-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;margin-top:12px}
.flow-step{
  background:var(--panel);border:1px solid var(--line-soft);
  border-radius:16px;padding:26px 24px;position:relative;
  transition:all .28s;
}
.flow-step:hover{transform:translateY(-6px);border-color:rgba(0,167,225,.35);background:var(--panel-light)}
.flow-num{
  font-family:"Rajdhani","Arial Black",sans-serif;font-size:30px;font-weight:700;
  color:var(--amber);display:flex;align-items:center;gap:10px;margin-bottom:12px;
}
.flow-num i{color:var(--cyan);font-size:17px;font-weight:400}
.flow-step h3{color:var(--text-hi);font-size:18px;font-weight:700;margin-bottom:10px}
.flow-step p{color:var(--text-dim);font-size:14px;line-height:1.8}
.flow-arrow{
  position:absolute;top:50%;right:-18px;z-index:3;width:36px;height:36px;
  background:var(--bg-dark);border:1px solid rgba(0,167,225,.3);
  color:var(--cyan);border-radius:50%;
  display:flex;align-items:center;justify-content:center;font-size:14px;
  transform:translateY(-50%);box-shadow:0 0 18px rgba(0,167,225,.16);
}
.flow-step:last-child .flow-arrow{display:none}

/* 资讯区 */
.news-section{background:var(--bg-dark)}
.news-layout{display:grid;grid-template-columns:300px 1fr;gap:44px}
.news-layout .sec-head{margin-bottom:20px}
.news-note{
  font-size:14px;color:var(--text-dim);background:var(--panel-dark);
  border:1px solid var(--line-soft);border-radius:14px;padding:18px;margin-bottom:16px;
}
.news-note i{color:var(--amber);margin-right:8px}
.news-note b{color:var(--text-hi);font-weight:600}
.news-link-more{
  display:inline-flex;align-items:center;gap:8px;font-size:14px;font-weight:600;color:var(--amber);
  margin-top:8px;
}
.news-list{display:flex;flex-direction:column;gap:14px}
.post-card{
  display:flex;align-items:center;gap:18px;
  background:var(--panel);border:1px solid var(--line-soft);
  border-radius:16px;padding:20px;transition:all .25s;position:relative;overflow:hidden;
}
.post-card::before{
  content:"";position:absolute;left:0;top:50%;transform:translateY(-50%) scaleY(0);
  width:4px;height:62%;border-radius:0 4px 4px 0;
  background:linear-gradient(180deg,var(--cyan),var(--amber));
  transition:transform .28s;
}
.post-card:hover{
  border-color:rgba(0,167,225,.30);background:var(--panel-light);transform:translateX(4px);
}
.post-card:hover::before{transform:translateY(-50%) scaleY(1)}
.post-date{
  flex:0 0 64px;text-align:center;
  background:rgba(0,167,225,.08);border:1px solid rgba(0,167,225,.2);
  border-radius:12px;padding:8px 4px;line-height:1.1;
}
.post-date .d{display:block;font-size:24px;font-weight:900;color:var(--amber);font-family:"Rajdhani","Arial Black",sans-serif}
.post-date .m{display:block;font-size:11px;color:var(--text-dim);margin-top:2px}
.post-main{flex:1;min-width:0}
.post-main h3{
  color:var(--text-hi);font-size:17px;font-weight:700;line-height:1.5;margin-bottom:6px;
  white-space:nowrap;overflow:hidden;text-overflow:ellipsis;
}
.post-main p{
  color:var(--text-dim);font-size:14px;line-height:1.7;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.post-tag{
  flex:0 0 auto;font-size:12px;color:var(--amber);
  background:rgba(245,181,68,.09);border:1px solid rgba(245,181,68,.22);
  padding:4px 12px;border-radius:100px;
}
.post-arrow{
  flex:0 0 36px;width:36px;height:36px;border-radius:50%;
  background:rgba(255,255,255,.05);border:1px solid var(--line-soft);
  display:flex;align-items:center;justify-content:center;
  color:var(--text-dim);transition:all .22s;
}
.post-card:hover .post-arrow{background:var(--grad-main);border-color:transparent;color:#fff}
.news-empty{
  min-height:240px;display:flex;flex-direction:column;align-items:center;justify-content:center;
  background:var(--panel);border:1px dashed rgba(255,255,255,.15);
  border-radius:18px;color:var(--text-dim);
}
.news-empty i{font-size:42px;color:rgba(255,255,255,.18);margin-bottom:14px}
.news-empty p{font-size:15px}

/* FAQ */
.faq-layout{display:grid;grid-template-columns:1fr 1fr;gap:18px}
.faq-item{
  background:var(--panel);border:1px solid var(--line-soft);
  border-radius:14px;overflow:hidden;transition:border-color .22s,background .22s;
  margin-bottom:14px;
}
.faq-item:hover{border-color:rgba(0,167,225,.3);background:var(--panel-light)}
.faq-item[open]{border-color:rgba(0,167,225,.35);background:rgba(0,167,225,.04)}
.faq-item summary{
  list-style:none;cursor:pointer;
  display:flex;align-items:center;gap:12px;
  min-height:58px;padding:14px 18px;
  color:var(--text-hi);font-weight:600;font-size:15px;
  user-select:none;
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-qic{
  width:22px;height:22px;flex:0 0 auto;border-radius:6px;
  background:rgba(0,167,225,.14);color:var(--cyan);
  display:flex;align-items:center;justify-content:center;font-size:11px;
}
.faq-item summary .fa-chevron-down{margin-left:auto;color:var(--text-dim);transition:transform .22s;font-size:13px}
.faq-item[open] summary .fa-chevron-down{transform:rotate(180deg);color:var(--cyan)}
.faq-answer{
  background:rgba(0,0,0,.18);margin:0 8px 8px;border-radius:10px;
  padding:16px 18px;
}
.faq-answer p{color:var(--text);font-size:14px;line-height:1.9}
.faq-foot{
  margin-top:28px;text-align:center;color:var(--text-dim);font-size:14px;
}
.faq-foot a{color:var(--amber);border-bottom:1px solid rgba(245,181,68,.4);padding-bottom:2px}

/* CTA */
.cta-area{
  padding:0 0 84px;
}
.cta-bar{
  position:relative;overflow:hidden;
  border-radius:24px;background:rgba(255,255,255,.06);
  border:1px solid var(--line);
  padding:56px clamp(20px,6vw,70px);
  text-align:center;
  background-image:url('/assets/images/backpic/back-3.png');
  background-size:cover;
  background-position:center;
  background-blend-mode:overlay;
}
.cta-bar::before{
  content:"";position:absolute;inset:0;background:rgba(9,15,24,.82);
  background:linear-gradient(120deg,rgba(9,15,24,.92),rgba(14,27,42,.72));
}
.cta-inner{position:relative;z-index:2}
.cta-inner h2{color:var(--text-hi);font-size:clamp(22px,3vw,32px);font-weight:800;margin-bottom:12px}
.cta-inner p{color:var(--text-dim);font-size:16px;margin-bottom:30px;max-width:640px;margin-left:auto;margin-right:auto}
.cta-btns{display:flex;justify-content:center;gap:14px;flex-wrap:wrap}

/* 页脚 */
.site-footer{background:#060b11;border-top:1px solid var(--line-soft);margin-top:auto}
.footer-main{padding:44px 0 28px}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr;gap:40px}
.footer-brand .brand-main{font-size:20px;color:#fff}
.footer-brand .brand-main span{color:var(--cyan)}
.footer-brand p{color:var(--text-dim);font-size:14px;margin-top:12px;line-height:1.8;max-width:360px}
.footer-title{color:var(--text-hi);font-size:15px;font-weight:700;margin-bottom:14px}
.footer-col a{
  display:block;color:var(--text-dim);font-size:14px;padding:5px 0;transition:all .2s;
}
.footer-col a:hover{color:var(--cyan);padding-left:5px}
.footer-col span.dim{display:block;color:var(--text-dim);font-size:14px;padding:5px 0}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.05);padding:20px 0 22px;
}
.footer-bottom .container{
  display:flex;justify-content:space-between;align-items:center;gap:16px;flex-wrap:wrap;
}
.copy-text{color:var(--text-dim);font-size:13px}
.copy-text a{color:var(--text-dim)}
.copy-text a:hover{color:var(--cyan)}
.icp-text{color:#5d7283;font-size:13px}

/* 响应式 */
@media screen and (max-width:1024px){
  .sidebar{transform:translateX(-105%);box-shadow:none}
  .main-area{margin-left:0}
  .nav-toggle{display:inline-flex}
  .mobile-brand{display:inline-block;font-size:16px}
  .drawer-mask{display:block}
  body.drawer-open .sidebar{transform:translateX(0);box-shadow:0 0 60px rgba(0,0,0,.7)}
  body.drawer-open .drawer-mask{opacity:1;pointer-events:auto}
  .hero-grid{grid-template-columns:1fr;gap:44px}
  .news-layout{grid-template-columns:1fr}
  .service-card-large{grid-template-columns:1fr}
  .service-card-large .service-media{min-height:240px;order:-1}
  .service-card-large .service-media img{min-height:240px}
  .scene-row{grid-template-columns:1fr;gap:30px}
  .scene-row:nth-child(even) .scene-media{order:0}
  .flow-grid{grid-template-columns:1fr 1fr;gap:14px}
  .flow-arrow{display:none}
  .footer-grid{grid-template-columns:1fr 1fr;gap:24px}
}
@media screen and (max-width:767px){
  .section{padding:64px 0}
  .hero{padding:52px 0}
  .service-grid{grid-template-columns:1fr;gap:18px}
  .service-card,.service-card-large{grid-column:auto}
  .service-card:nth-child(3){margin-top:0}
  .service-card:nth-child(4){margin-top:0}
  .service-card-body{padding:26px 24px}
  .kpi-board-inner{padding:30px 20px}
  .kpi-grid{grid-template-columns:1fr 1fr;gap:10px}
  .kpi-item{padding:18px 14px}
  .kpi-value{font-size:30px}
  .flow-grid{grid-template-columns:1fr}
  .faq-layout{grid-template-columns:1fr}
  .cta-bar{padding:44px 20px}
  .hero-actions a{width:100%}
  .topbar-right .status-label{display:none}
  .post-card{flex-wrap:wrap;padding:16px;gap:12px}
  .post-tag{margin-left:auto}
  .post-arrow{display:none}
  .footer-grid{grid-template-columns:1fr;gap:24px}
}
@media screen and (max-width:520px){
  body{font-size:15px}
  .hero-title{font-size:31px}
  .section-title{font-size:25px}
  .btn-lg{width:100%}
  .kpi-grid{grid-template-columns:1fr}
  .kpi-board-inner{padding:24px 16px}
  .topbar{padding:0 12px}
  .cta-inner p{font-size:14px}
  .post-date{flex-basis:56px}
  .post-main h3{white-space:normal}
  .status-label{display:none}
  .container{padding:0 16px}
}

/* roulang page: category1 */
:root{
  --bg-deep:#0A111B;
  --bg-primary:#0B1520;
  --bg-secondary:#0E1B2A;
  --brand-primary:#00A7E1;
  --brand-secondary:#0E86D4;
  --brand-glow:rgba(0,167,225,0.35);
  --accent:#F5B544;
  --accent-soft:rgba(245,181,68,0.12);
  --text-heading:#F3F7FB;
  --text-body:#C7D1DC;
  --text-dim:#8DA0B0;
  --glass-bg:rgba(255,255,255,0.06);
  --glass-border:rgba(255,255,255,0.10);
  --glass-border-strong:rgba(255,255,255,0.16);
  --radius-lg:18px;
  --radius-md:12px;
  --radius-sm:8px;
  --shadow-card:0 12px 40px rgba(0,0,0,0.45), inset 0 1px 0 rgba(255,255,255,0.05);
  --shadow-glow:0 0 30px rgba(0,167,225,0.25);
  --font-main:'Noto Sans SC', 'PingFang SC', 'Microsoft YaHei', system-ui, sans-serif;
  --spacing-section:88px;
  --transition:0.3s cubic-bezier(0.2,0.7,0.2,1);
}
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0;}
html,body{overflow:hidden;height:100%;}
body{
  font-family:var(--font-main);
  background:var(--bg-primary);
  color:var(--text-body);
  line-height:1.75;
  font-size:16px;
  -webkit-font-smoothing:antialiased;
}
a{color:var(--brand-primary);text-decoration:none;transition:color var(--transition);}
a:hover{color:var(--accent);}
img{max-width:100%;border-radius:var(--radius-md);}
ul,ol{list-style:none;}
button{border:none;cursor:pointer;font-family:var(--font-main);}
input,textarea,select{font-family:var(--font-main);}
i{pointer-events:none;}

/* ===== App Shell Layout ===== */
.app-shell{display:flex;height:100vh;width:100%;overflow:hidden;}
.side-rail{
  width:260px;
  flex:0 0 260px;
  background:linear-gradient(180deg, rgba(14,27,42,0.98) 0%, #0B1520 100%);
  border-right:1px solid rgba(255,255,255,0.06);
  display:flex;
  flex-direction:column;
  height:100vh;
  position:relative;
  z-index:50;
  padding:0;
}
.rail-brand{
  height:64px;
  display:flex;
  align-items:center;
  padding:0 20px;
  border-bottom:1px solid rgba(255,255,255,0.08);
  background:rgba(255,255,255,0.02);
  position:relative;
}
.brand{
  display:flex;
  align-items:baseline;
  gap:2px;
  font-size:20px;
  font-weight:800;
  color:var(--text-heading);
  letter-spacing:0.02em;
  white-space:nowrap;
}
.brand-main{font-weight:900;font-size:20px;}
.brand-main span{
  color:var(--brand-primary);
  font-weight:600;
  font-size:15px;
  margin-left:4px;
}
.brand:hover{color:var(--text-heading);}
.brand-icon{
  width:38px;height:38px;
  background:linear-gradient(135deg, var(--brand-primary), var(--brand-secondary));
  border-radius:10px;
  display:flex;
  align-items:center;
  justify-content:center;
  margin-right:10px;
  font-size:17px;
  color:#fff;
  box-shadow:0 0 18px var(--brand-glow);
  flex:0 0 38px;
}
.brand-text{font-weight:900;font-size:18px;color:var(--text-heading);line-height:1.2;}
.brand-text small{display:block;font-size:11px;font-weight:400;color:var(--text-dim);letter-spacing:0.05em;margin-top:2px;}
.side-nav{
  flex:1;
  padding:22px 14px;
  overflow-y:auto;
  scrollbar-width:thin;
  scrollbar-color:rgba(255,255,255,0.12) transparent;
}
.side-nav::-webkit-scrollbar{width:4px;}
.side-nav::-webkit-scrollbar-thumb{background:rgba(255,255,255,0.12);border-radius:4px;}
.side-link{
  display:flex;
  align-items:center;
  gap:12px;
  padding:12px 16px;
  margin-bottom:5px;
  border-radius:12px;
  color:var(--text-dim);
  font-size:15px;
  font-weight:500;
  position:relative;
  transition:all var(--transition);
  background:transparent;
}
.side-link i{
  width:20px;
  text-align:center;
  font-size:15px;
  opacity:0.75;
  transition:all var(--transition);
}
.side-link .nav-num{
  margin-left:auto;
  font-size:11px;
  font-weight:700;
  color:rgba(255,255,255,0.22);
  transition:color var(--transition);
}
.side-link:hover{
  background:rgba(255,255,255,0.04);
  color:var(--text-body);
  transform:translateX(2px);
}
.side-link:hover i{color:var(--brand-primary);opacity:1;}
.side-link.active{
  background:linear-gradient(90deg, rgba(0,167,225,0.13), rgba(0,167,225,0.02));
  color:var(--text-heading);
  font-weight:600;
}
.side-link.active::before{
  content:'';
  position:absolute;
  left:0;top:12px;bottom:12px;
  width:3px;
  background:linear-gradient(180deg, var(--brand-primary), var(--accent));
  box-shadow:0 0 12px var(--brand-glow);
  border-radius:3px;
}
.side-link.active i{color:var(--brand-primary);opacity:1;}
.rail-status{
  padding:18px 20px 22px;
  border-top:1px solid rgba(255,255,255,0.06);
}
.system-status{
  display:flex;
  align-items:center;
  gap:10px;
  padding:12px 14px;
  background:rgba(255,255,255,0.03);
  border-radius:10px;
  font-size:13px;
  color:var(--text-dim);
}
.status-dot{
  width:8px;height:8px;
  border-radius:50%;
  background:#34d399;
  box-shadow:0 0 10px rgba(52,211,153,0.6);
  animation:pulse-dot 2s infinite;
  flex:0 0 8px;
}
@keyframes pulse-dot{
  0%,100%{opacity:1;transform:scale(1);}
  50%{opacity:0.5;transform:scale(0.8);}
}

/* ===== Main Content ===== */
.main-area{
  flex:1;
  overflow-y:auto;
  overflow-x:hidden;
  background:
    radial-gradient(ellipse at 85% 20%, rgba(0,167,225,0.08), transparent 60%),
    radial-gradient(ellipse at 15% 80%, rgba(245,181,68,0.04), transparent 50%),
    var(--bg-primary);
}
.top-strip{
  position:sticky;
  top:0;
  z-index:40;
  height:60px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  padding:0 36px;
  background:linear-gradient(180deg, rgba(11,21,32,0.92), rgba(11,21,32,0.75));
  backdrop-filter:blur(18px);
  -webkit-backdrop-filter:blur(18px);
  border-bottom:1px solid rgba(255,255,255,0.04);
}
.breadcrumb-area{display:flex;align-items:center;font-size:13px;color:var(--text-dim);}
.breadcrumb-area a{color:var(--text-dim);}
.breadcrumb-area a:hover{color:var(--brand-primary);}
.breadcrumb-area .sep{margin:0 10px;color:rgba(255,255,255,0.2);font-size:11px;}
.breadcrumb-area .current{color:var(--text-body);}
.top-cta-group{display:flex;align-items:center;gap:12px;}
.mobile-hamburger{
  display:none;
  width:38px;height:38px;
  background:rgba(255,255,255,0.06);
  border:1px solid var(--glass-border);
  border-radius:10px;
  color:var(--text-body);
  font-size:16px;
  align-items:center;
  justify-content:center;
  transition:all var(--transition);
}
.mobile-hamburger:hover{background:rgba(255,255,255,0.1);color:var(--text-heading);}
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  font-size:15px;
  font-weight:600;
  padding:12px 24px;
  border-radius:10px;
  transition:all var(--transition);
  line-height:1.2;
  white-space:nowrap;
}
.btn-sm{font-size:13px;padding:8px 16px;border-radius:8px;}
.btn-primary{
  background:linear-gradient(135deg, var(--brand-secondary), var(--brand-primary));
  color:#fff;
  box-shadow:0 4px 20px rgba(0,167,225,0.3);
  border:1px solid rgba(255,255,255,0.14);
}
.btn-primary:hover{
  transform:translateY(-2px);
  box-shadow:0 8px 30px rgba(0,167,225,0.45), 0 0 20px var(--brand-glow);
  color:#fff;
}
.btn-primary:active{transform:translateY(0);box-shadow:0 2px 12px rgba(0,167,225,0.3);}
.btn-secondary{
  background:rgba(255,255,255,0.06);
  color:var(--text-body);
  border:1px solid var(--glass-border-strong);
  backdrop-filter:blur(10px);
}
.btn-secondary:hover{
  background:rgba(255,255,255,0.11);
  color:var(--text-heading);
  border-color:rgba(255,255,255,0.28);
  box-shadow:0 4px 20px rgba(0,0,0,0.2);
  transform:translateY(-2px);
}
.btn-accent{
  background:linear-gradient(135deg, #E8A33D, var(--accent));
  color:#111;
  font-weight:700;
  box-shadow:0 4px 20px rgba(245,181,68,0.25);
}
.btn-accent:hover{color:#111;transform:translateY(-2px);box-shadow:0 8px 28px rgba(245,181,68,0.4);}
.btn-outline{
  background:transparent;
  border:1px solid rgba(0,167,225,0.5);
  color:var(--brand-primary);
}
.btn-outline:hover{background:rgba(0,167,225,0.09);color:var(--text-heading);border-color:var(--brand-primary);box-shadow:0 0 18px rgba(0,167,225,0.2);}

.content-wrapper{
  max-width:1280px;
  margin:0 auto;
  padding:0 36px;
}

/* ===== Category Page Hero ===== */
.cat-hero{
  padding:56px 36px 44px;
  background:
    url('/assets/images/backpic/back-1.png') center/cover no-repeat,
    linear-gradient(135deg, #0B1520 0%, #0E1B2A 55%, #132a3e 100%);
  position:relative;
  border-bottom:1px solid rgba(255,255,255,0.05);
  min-height:340px;
  display:flex;
  align-items:center;
}
.cat-hero::before{
  content:'';
  position:absolute;
  top:0;left:0;right:0;bottom:0;
  background:linear-gradient(120deg, rgba(11,21,32,0.75) 0%, rgba(11,21,32,0.35) 45%, rgba(0,167,225,0.08) 100%);
  z-index:1;
}
.cat-hero::after{
  content:'';
  position:absolute;
  top:0;right:0;
  width:40%;
  height:100%;
  background-image:linear-gradient(rgba(255,255,255,0.04) 1px, transparent 1px),linear-gradient(90deg, rgba(255,255,255,0.04) 1px, transparent 1px);
  background-size:36px 36px;
  mask-image:linear-gradient(90deg, transparent, #000);
  -webkit-mask-image:linear-gradient(90deg, transparent, #000);
  z-index:1;
}
.cat-hero .inner{
  max-width:1280px;
  margin:0 auto;
  width:100%;
  position:relative;
  z-index:2;
  display:grid;
  grid-template-columns:1fr 320px;
  gap:48px;
  align-items:center;
  padding:0;
}
.cat-hero-tag{
  display:inline-flex;
  align-items:center;
  gap:8px;
  background:var(--accent-soft);
  border:1px solid rgba(245,181,68,0.25);
  color:var(--accent);
  font-size:12px;
  font-weight:600;
  padding:5px 12px;
  border-radius:30px;
  margin-bottom:16px;
  letter-spacing:0.04em;
}
.cat-hero-tag i{font-size:11px;}
.cat-hero h1{
  font-size:40px;
  font-weight:900;
  color:var(--text-heading);
  line-height:1.3;
  margin-bottom:14px;
  letter-spacing:0.01em;
}
.cat-hero h1 .brand-mark{
  color:var(--brand-primary);
  position:relative;
}
.cat-hero h1 .brand-mark::after{
  content:'';
  position:absolute;bottom:2px;left:0;
  width:100%;height:3px;
  background:linear-gradient(90deg, var(--brand-primary), transparent);
  border-radius:3px;
}
.cat-hero p{
  font-size:17px;
  color:var(--text-body);
  max-width:700px;
  line-height:1.7;
  margin-bottom:24px;
}
.hero-toolbar{display:flex;gap:14px;margin-top:18px;flex-wrap:wrap;}
.hero-sidebar{
  background:linear-gradient(135deg, rgba(0,167,225,0.1), rgba(245,181,68,0.06));
  border:1px solid rgba(255,255,255,0.14);
  border-radius:14px;
  padding:22px;
  backdrop-filter:blur(10px);
  position:relative;
  overflow:hidden;
}
.hero-sidebar::after{
  content:'';
  position:absolute;bottom:-40px;right:-40px;
  width:120px;height:120px;
  border-radius:50%;
  background:rgba(0,167,225,0.14);
  filter:blur(24px);
}
.sidebar-label{
  font-size:12px;
  font-weight:600;
  color:var(--text-dim);
  text-transform:uppercase;
  letter-spacing:0.12em;
  display:flex;
  align-items:center;
  gap:8px;
  margin-bottom:12px;
  position:relative;z-index:2;
}
.sidebar-label i{color:var(--brand-primary);}
.sidebar-title{
  font-size:18px;
  font-weight:700;
  color:var(--text-heading);
  margin-bottom:6px;
  position:relative;z-index:2;
}
.sidebar-desc{
  font-size:13px;
  color:var(--text-dim);
  line-height:1.65;
  margin-bottom:16px;
  position:relative;z-index:2;
}
.sidebar-pills{display:flex;flex-wrap:wrap;gap:8px;position:relative;z-index:2;}
.pill{
  display:inline-flex;
  align-items:center;
  gap:6px;
  font-size:12px;
  padding:5px 12px;
  background:rgba(255,255,255,0.08);
  border:1px solid rgba(255,255,255,0.12);
  color:var(--text-body);
  border-radius:30px;
  font-weight:600;
  transition:all var(--transition);
}
.pill:hover{background:var(--brand-primary);color:#fff;border-color:var(--brand-primary);}

/* ===== Sections ===== */
.cat-section{padding:var(--spacing-section) 0;}
.cat-section:last-of-type{padding-bottom:100px;}
.card-glass{
  background:var(--glass-bg);
  border:1px solid var(--glass-border);
  border-radius:var(--radius-lg);
  backdrop-filter:blur(16px);
  -webkit-backdrop-filter:blur(16px);
  transition:all var(--transition);
  box-shadow:var(--shadow-card);
}
.card-glass:hover{
  transform:translateY(-4px);
  border-color:var(--glass-border-strong);
  box-shadow:0 16px 50px rgba(0,0,0,0.5), 0 0 30px rgba(0,167,225,0.1);
}

/* ===== Login Flow Section ===== */
.flow-block{
  display:grid;
  grid-template-columns:0.45fr 1.55fr;
  gap:32px;
  align-items:start;
  position:relative;
}
.flow-intro{
  position:sticky;
  top:100px;
}
.sec-title{
  font-size:32px;
  font-weight:800;
  color:var(--text-heading);
  margin-bottom:14px;
  line-height:1.3;
}
.sec-title .accent-line{
  display:inline-block;
  width:36px;
  height:4px;
  background:linear-gradient(90deg, var(--brand-primary), var(--accent));
  border-radius:4px;
  vertical-align:middle;
  margin-right:14px;
}
.sec-subtitle{color:var(--text-dim);font-size:16px;line-height:1.8;margin-bottom:18px;}
.sec-excerpt{
  color:var(--text-dim);
  font-size:15px;
  line-height:1.75;
  border-left:2px solid rgba(245,181,68,0.5);
  padding-left:18px;
  margin-top:18px;
}
.flow-steps{
  display:grid;
  grid-template-columns:repeat(2, 1fr);
  gap:20px;
  position:relative;
}
.flow-step{
  background:var(--glass-bg);
  border:1px solid var(--glass-border);
  border-radius:var(--radius-lg);
  padding:26px 24px;
  position:relative;
  transition:all var(--transition);
  overflow:hidden;
}
.flow-step::before{
  content:'';
  position:absolute;
  top:0;left:0;
  width:100%;height:3px;
  background:linear-gradient(90deg, var(--brand-primary), transparent 60%);
  opacity:0;
  transition:opacity var(--transition);
}
.flow-step:hover::before{opacity:1;}
.flow-step:hover{background:rgba(255,255,255,0.09);border-color:var(--glass-border-strong);}
.step-num{
  font-size:13px;
  font-weight:800;
  color:var(--accent);
  letter-spacing:0.08em;
  margin-bottom:16px;
  display:flex;
  align-items:center;
  gap:10px;
}
.step-num::before{
  content:'';
  width:24px;height:2px;
  background:var(--accent);
  border-radius:4px;
  display:inline-block;
}
.step-icon{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  width:44px;height:44px;
  border-radius:12px;
  background:linear-gradient(135deg, rgba(0,167,225,0.2), rgba(0,167,225,0.05));
  border:1px solid rgba(0,167,225,0.3);
  color:var(--brand-primary);
  font-size:18px;
  margin-bottom:16px;
}
.step-name{
  font-size:19px;
  font-weight:700;
  color:var(--text-heading);
  margin-bottom:10px;
}
.step-desc{font-size:14px;color:var(--text-dim);line-height:1.75;}
.step-sub-list{
  margin-top:12px;
  display:grid;
  gap:6px;
  font-size:13.5px;
  color:var(--text-dim);
}
.step-sub-list li{
  display:flex;
  align-items:center;
  gap:8px;
}
.step-sub-list li i{
  font-size:11px;
  color:var(--brand-primary);
}

/* ===== Device Guide Section ===== */
.device-section{
  position:relative;
  background:
    url('/assets/images/backpic/back-2.png') center/cover no-repeat,
    linear-gradient(135deg, rgba(10,17,27,0.85), rgba(14,27,42,0.92));
  border-radius:20px;
  border:1px solid var(--glass-border);
  overflow:hidden;
  padding:56px 28px;
}
.device-section::before{
  content:'';
  position:absolute;top:0;left:0;right:0;bottom:0;
  background:radial-gradient(ellipse at 80% 0%, rgba(0,167,225,0.14), transparent 60%);
  z-index:0;
}
.device-header{
  position:relative;z-index:2;
  text-align:center;
  max-width:680px;
  margin:0 auto 48px;
}
.device-header h2{
  font-size:32px;font-weight:800;
  color:var(--text-heading);
  margin-bottom:12px;
}
.device-header p{
  color:var(--text-dim);
  font-size:15px;
  line-height:1.8;
}
.device-grid{
  position:relative;z-index:2;
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:24px;
  max-width:1000px;
  margin:0 auto;
}
.device-card{
  background:rgba(255,255,255,0.07);
  border:1px solid rgba(255,255,255,0.14);
  border-radius:14px;
  padding:28px 28px;
  transition:all var(--transition);
  display:flex;
  gap:20px;
  align-items:flex-start;
}
.device-card:hover{
  background:rgba(11,21,32,0.75);
  border-color:rgba(0,167,225,0.4);
  box-shadow:0 8px 30px rgba(0,0,0,0.3);
  transform:translateY(-3px);
}
.device-rank{
  display:flex;
  align-items:center;
  justify-content:center;
  width:56px;height:56px;
  border-radius:12px;
  background:linear-gradient(135deg, rgba(245,181,68,0.2), rgba(245,181,68,0.05));
  font-size:22px;
  font-weight:900;
  color:var(--accent);
  flex:0 0 56px;
  position:relative;
}
.device-info{flex:1;}
.device-info h3{color:var(--text-heading);font-size:18px;font-weight:700;margin-bottom:6px;}
.device-info p{color:var(--text-dim);font-size:14px;margin-bottom:10px;}
.device-actions p{
  font-size:13px;
  color:var(--text-body);
  padding:10px 14px;
  margin-bottom:0;
  background:rgba(0,167,225,0.07);
  border-radius:8px;
  border:1px solid rgba(0,167,225,0.15);
}
.device-actions p i{
  color:var(--brand-primary);
  margin-right:6px;
}

/* ===== Security Section ===== */
.security-block{
  display:grid;
  gap:24px;
}
.security-main-card{
  background:var(--glass-bg);
  border:1px solid var(--glass-border);
  border-radius:var(--radius-lg);
  padding:34px;
  position:relative;
  overflow:hidden;
  transition:all var(--transition);
}
.security-main-card::before{
  content:'';
  position:absolute;left:0;top:0;bottom:0;
  width:4px;
  background:linear-gradient(180deg, var(--brand-primary), var(--accent));
  border-radius:4px;
}
.security-main-card:hover{background:rgba(255,255,255,0.09);border-color:var(--glass-border-strong);}
.sec-mini-header{
  display:flex;
  align-items:center;
  gap:16px;
  margin-bottom:18px;
}
.sec-mini-header h3{
  font-size:22px;
  font-weight:700;
  color:var(--text-heading);
}
.sec-tag{
  display:inline-flex;
  align-items:center;
  gap:5px;
  padding:4px 12px;
  font-size:12px;
  background:rgba(245,181,68,0.12);
  border:1px solid rgba(245,181,68,0.22);
  border-radius:30px;
  color:var(--accent);
  font-weight:600;
  white-space:nowrap;
}
.security-main-card .card-desc{
  font-size:15px;
  line-height:1.8;
  color:rgba(199,209,220,0.85);
  margin-bottom:18px;
}
.security-points{
  display:grid;
  grid-template-columns:repeat(3, 1fr);
  gap:16px;
  margin-top:20px;
}
.security-point{
  padding:16px 18px;
  background:rgba(255,255,255,0.04);
  border-radius:12px;
  border:1px solid rgba(255,255,255,0.07);
  transition:all var(--transition);
}
.security-point:hover{
  background:rgba(0,167,225,0.08);
  border-color:rgba(0,167,225,0.28);
}
.security-point i{
  color:var(--brand-primary);
  font-size:18px;
  margin-bottom:8px;
  display:inline-block;
}
.security-point strong{display:block;font-size:15px;color:var(--text-body);margin-bottom:4px;}
.security-point span{font-size:13px;color:var(--text-dim);}

/* ===== FAQ Section ===== */
.faq-section{
  background:linear-gradient(180deg, #0B1520, rgba(14,27,42,0.4), #0B1520);
  border-radius:20px;
  padding:56px 28px;
  border:1px solid rgba(255,255,255,0.07);
  position:relative;
}
.faq-section .container-inner{
  display:grid;
  gap:24px;
}
.faq-header-row{
  display:flex;
  justify-content:space-between;
  align-items:flex-end;
  margin-bottom:20px;
  flex-wrap:wrap;
  gap:12px;
}
.faq-header-row h2{font-size:28px;font-weight:800;color:var(--text-heading);}
.faq-header-row p{color:var(--text-dim);font-size:14px;}
.accordion-grid{
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:20px;
  align-items:start;
}
.accordion-col{display:grid;gap:12px;}
.faq-item{
  background:rgba(255,255,255,0.05);
  border-radius:14px;
  border:1px solid rgba(255,255,255,0.08);
  transition:all var(--transition);
  overflow:hidden;
}
.faq-item:hover{border-color:rgba(0,167,225,0.3);background:rgba(0,167,225,0.07);}
.faq-item.open{
  background:rgba(3,10,18,0.75);
  border-color:rgba(0,167,225,0.45);
  box-shadow:0 0 20px rgba(0,167,225,0.1);
}
.faq-q{
  padding:18px 20px;
  display:flex;
  gap:14px;
  align-items:flex-start;
  cursor:pointer;
  transition:all var(--transition);
  min-height:52px;
}
.faq-q .q-icon{
  color:var(--brand-primary);
  font-size:15px;
  margin-top:2px;
  flex:0 0 18px;
}
.faq-q .q-text{
  flex:1;
  font-size:15px;
  font-weight:600;
  color:var(--text-heading);
  line-height:1.5;
}
.faq-q .q-arrow{
  color:rgba(255,255,255,0.35);
  transition:transform var(--transition);
}
.faq-item.open .q-arrow{transform:rotate(180deg);color:var(--accent);}
.faq-a{
  padding:0 20px;
  max-height:0;
  overflow:hidden;
  transition:max-height 0.3s ease, padding 0.3s ease, opacity 0.3s ease;
  opacity:0;
}
.faq-item.open .faq-a{
  max-height:300px;
  padding:0 20px 18px;
  opacity:1;
}
.faq-a-inner{
  padding-left:30px;
  padding-top:2px;
}
.faq-a-inner p{font-size:14px;color:var(--text-dim);line-height:1.8;}

/* ===== Alt-entry Section ===== */
.alt-entry-card{
  background:var(--glass-bg);
  border:1px solid var(--glass-border);
  border-radius:var(--radius-lg);
  padding:40px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:32px;
  position:relative;
  overflow:hidden;
}
.alt-entry-card::after{
  content:'';
  position:absolute;
  right:-20px;top:-20px;
  width:150px;height:150px;
  background:radial-gradient(circle, rgba(0,167,225,0.15), transparent 70%);
  border-radius:50%;
}
.alt-info{
  position:relative;
  z-index:2;
  flex:1;
}
.alt-info h3{
  font-size:24px;
  color:var(--text-heading);
  margin-bottom:8px;
  position:relative;
}
.alt-info p{color:var(--text-dim);font-size:15px;}
.alt-actions{
  position:relative;
  z-index:2;
  flex:0 0 auto;
  display:flex;
  gap:12px;
  flex-wrap:wrap;
  justify-content:flex-end;
}

/* ===== CTA ===== */
.cta-band{
  padding:20px;
  background:linear-gradient(120deg, rgba(0,167,225,0.2), rgba(245,181,68,0.12), rgba(0,167,225,0.12));
  border-radius:20px;
  border:1px solid rgba(0,167,225,0.28);
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:20px;
  flex-wrap:wrap;
  padding:30px 36px;
  position:relative;
  overflow:hidden;
}
.cta-band::before{
  content:'';
  position:absolute;
  top:0;bottom:0;right:35%;
  width:1px;
  background:linear-gradient(180deg, transparent, rgba(245,181,68,0.4), transparent);
}
.cta-inner h3{
  color:var(--text-heading);
  font-size:22px;
  font-weight:700;
}
.cta-inner p{color:var(--text-body);font-size:15px;margin-top:4px;line-height:1.55;}

/* ===== Mini CTA / Guide chips ===== */
.chip-row{
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:16px;
}
.chip-card{
  background:rgba(255,255,255,0.06);
  border:1px solid rgba(255,255,255,0.12);
  border-radius:14px;
  padding:22px 24px;
  display:flex;
  align-items:center;
  gap:18px;
}
.chip-icon{
  width:48px;
  height:48px;
  border-radius:12px;
  background:linear-gradient(135deg, rgba(0,167,225,0.23), rgba(0,167,225,0.04));
  border:1px solid rgba(0,167,225,0.25);
  display:flex;
  align-items:center;
  justify-content:center;
  color:var(--brand-primary);
  font-size:20px;
  flex:0 0 48px;
}
.chip-info{
  display:flex;
  align-items:center;
  justify-content:space-between;
  flex:1;
  gap:10px;
}
.chip-info h4{font-size:17px;font-weight:600;color:var(--text-heading);margin-bottom:4px;}
.chip-info p{font-size:13px;color:var(--text-dim);margin:0;}
.chip-info a{white-space:nowrap;color:var(--accent);font-size:14px;font-weight:600;}
.chip-info a:hover{color:var(--text-heading);}

/* ===== Footer ===== */
.site-footer{
  background:linear-gradient(180deg, transparent, rgba(10,17,27,0.5)), #0A111B;
  border-top:1px solid rgba(255,255,255,0.06);
  margin-top:auto;
  padding:0;
}
.footer-main{padding:50px 36px 30px;}
.footer-grid{
  display:grid;
  grid-template-columns:1.5fr 1fr 1.2fr;
  gap:40px;
  max-width:1280px;
  margin:0 auto;
}
.footer-brand .brand{margin-bottom:8px;font-size:20px;}
.footer-brand p{color:var(--text-dim);font-size:13px;line-height:1.7;max-width:440px;}
.footer-title{
  font-size:14px;
  font-weight:700;
  color:var(--text-heading);
  margin-bottom:18px;
  position:relative;
  padding-bottom:8px;
}
.footer-title::after{
  content:'';
  position:absolute;bottom:0;left:0;
  width:24px;height:2px;
  background:var(--brand-primary);
  border-radius:2px;
}
.footer-col a{
  display:block;
  color:var(--text-dim);
  font-size:14px;
  padding:3px 0;
  transition:all var(--transition);
}
.footer-col a:hover{color:var(--brand-primary);transform:translateX(4px);}
.footer-col .dim{
  display:block;
  color:var(--text-dim);
  font-size:13px;
  padding:3px 0;
}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,0.05);
  padding:16px 36px;
  display:flex;
  justify-content:space-between;
  align-items:center;
  flex-wrap:wrap;
  gap:8px;
  max-width:1280px;
  margin:0 auto;
}
.footer-bottom .copy-text, .icp-text{font-size:13px;color:rgba(199,209,220,0.55);}
.footer-bottom .copy-text{margin:0;}

/* ===== Mobile drawer ===== */
.mobile-drawer{
  position:fixed;
  top:0;left:0;bottom:0;right:0;
  z-index:90;
  visibility:hidden;
  opacity:0;
  transition:opacity 0.3s;
}
.mobile-drawer.active{visibility:visible;opacity:1;}
.drawer-overlay{
  position:absolute;
  inset:0;
  background:rgba(0,0,0,0.68);
  backdrop-filter:blur(3px);
}
.drawer-panel{
  position:absolute;
  top:0;left:0;bottom:0;
  width:282px;
  background:#0C1824;
  border-right:1px solid rgba(255,255,255,0.1);
  padding:16px;
  transform:translateX(-100%);
  transition:transform 0.35s ease;
  display:flex;
  flex-direction:column;
  gap:4px;
}
.mobile-drawer.active .drawer-panel{transform:translateX(0);}
.drawer-brand{
  display:flex;
  align-items:center;
  gap:8px;
  padding:14px 6px;
  margin-bottom:8px;
  border-bottom:1px solid rgba(255,255,255,0.09);
}
.drawer-brand .brand-text{
  font-size:20px;
  font-weight:900;
  color:white;
  line-height:1.1;
}
.drawer-brand .brand-text small{display:block;font-size:11px;color:var(--text-dim);}
.drawer-close{
  margin-top:12px;
  background:rgba(255,255,255,0.07);
  border-radius:10px;
  color:var(--text-dim);
  padding:10px;
  font-size:14px;
  text-align:center;
  border:1px solid rgba(255,255,255,0.09);
}
.drawer-close:hover{background:rgba(255,255,255,0.14);color:#fff;}
.drawer-bottom{
  margin-top:auto;
  padding:2px 6px;
}

/* ===== In-view animations ===== */
.fade-in{opacity:0;animation:fadeIn .6s ease forwards;}
@keyframes fadeIn{from{opacity:0;transform:translateY(18px);}to{opacity:1;transform:translateY(0);}}

/* ===== Responsive ===== */
@media (max-width:1024px){
  .side-rail{display:none;}
  .mobile-hamburger{display:inline-flex;}
  .cat-hero .inner{grid-template-columns:1fr;}
  .content-wrapper,.top-strip{padding-left:20px;padding-right:20px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px;}
  .flow-block{grid-template-columns:1fr;}
  .accent-line{display:none;}
  .top-strip .brand-text{display:none;}
  .top-cta-group .btn-sm.first-cta{
    display:none;
  }
  .security-points{grid-template-columns:1fr;}
}
@media (max-width:768px){
  .flow-steps{grid-template-columns:1fr;gap:16px;}
  .device-grid{grid-template-columns:1fr;}
  .accordion-grid{grid-template-columns:1fr;}
  .cat-hero h1{font-size:32px;}
  .cat-hero{padding:40px 20px 34px;min-height:auto;}
  .top-strip{padding:0 16px;min-width:100%;}
  .cat-section{padding:56px 0;}
  .security-main-card{padding:24px 20px;}
  .chip-row{grid-template-columns:1fr;}
  .alt-entry-card{flex-direction:column;text-align:center;align-items:flex-start;}
  .alt-actions{justify-content:flex-start;}
  .site-footer{padding-top:0;}
  .mobile-hamburger{height:42px;}
  .top-strip .btn.btn-sm.btn-outline{display:none;}
  .top-strip .btn-primary.btn-sm{
    padding:8px 14px;font-size:12px;
  }
}
@media (max-width:640px){
  .brand-text small{display:none;}
  .footer-grid{grid-template-columns:1fr;}
  .content-wrapper,.top-strip{padding-left:14px;padding-right:14px;}
  .device-card{flex-direction:column;align-items:flex-start;}
  .cat-hero h1{font-size:28px;line-height:1.2;}
  .hero-toolbar{flex-direction:column;}
  .btn{width:100%;}
  .top-strip{padding:0 14px;}
  .security-main-card{flex-direction:column;}
  .top-strip .btn-primary{font-size:12px;padding:7px 10px;}
  .top-strip .btn-outline{display:none;}
  .sec-title{font-size:25px;}
}
@media (max-width:400px){
  .top-strip .btn-outline{display:none;}
  .brand-text span{display:none;}
}

/* roulang page: article */
:root {
            --bg-0: #071019;
            --bg-1: #0b1520;
            --bg-2: #102433;
            --panel: rgba(255, 255, 255, 0.065);
            --panel-soft: rgba(255, 255, 255, 0.045);
            --panel-strong: rgba(255, 255, 255, 0.09);
            --stroke: rgba(255, 255, 255, 0.1);
            --stroke-soft: rgba(255, 255, 255, 0.06);
            --cyan: #00a7e1;
            --cyan-deep: #0e86d4;
            --cyan-glow: rgba(0, 167, 225, 0.34);
            --amber: #e8a33d;
            --amber-bright: #f5b544;
            --text: #f3f7fb;
            --body: #c7d1dc;
            --dim: #8195a5;
            --warn: #ff7a7a;
            --radius-lg: 20px;
            --radius-md: 14px;
            --radius-sm: 8px;
            --font: "Noto Sans SC", "PingFang SC", "Microsoft YaHei", sans-serif;
            --font-num: "Rajdhani", "Noto Sans SC", sans-serif;
            --shadow-card: 0 18px 50px rgba(0, 0, 0, 0.34);
            --section-gap: 88px;
        }

        *,
        *::before,
        *::after {
            box-sizing: border-box;
        }

        html,
        body {
            margin: 0;
            padding: 0;
        }

        body {
            background: var(--bg-1);
            color: var(--body);
            font-family: var(--font);
            font-size: 16px;
            line-height: 1.8;
            -webkit-font-smoothing: antialiased;
            text-rendering: optimizeLegibility;
        }

        body.nav-open {
            overflow: hidden;
        }

        img {
            max-width: 100%;
            display: block;
        }

        a {
            color: var(--cyan);
            text-decoration: none;
            transition: color .22s ease;
        }

        a:hover {
            color: var(--amber-bright);
        }

        a:focus-visible,
        button:focus-visible {
            outline: 2px solid var(--cyan);
            outline-offset: 3px;
            border-radius: 6px;
        }

        button {
            font-family: inherit;
        }

        h1,
        h2,
        h3,
        h4,
        h5 {
            color: var(--text);
            margin: 0 0 .5em;
            line-height: 1.35;
            font-weight: 800;
        }

        p {
            margin: 0 0 1rem;
        }

        .dim {
            color: var(--dim);
        }

        .container {
            width: 100%;
            max-width: 1280px;
            margin: 0 auto;
            padding-left: 30px;
            padding-right: 30px;
        }

        .app-shell {
            min-height: 100vh;
            display: flex;
            background: var(--bg-1);
        }

        .side-bar {
            width: 268px;
            position: fixed;
            top: 0;
            bottom: 0;
            left: 0;
            z-index: 90;
            display: flex;
            flex-direction: column;
            background: linear-gradient(180deg, rgba(10, 21, 32, .97), rgba(7, 16, 25, .99));
            border-right: 1px solid var(--stroke-soft);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
        }

        .side-brand {
            height: 80px;
            padding: 0 22px;
            display: flex;
            align-items: center;
            border-bottom: 1px solid rgba(255, 255, 255, .07);
        }

        .brand-main {
            font-size: 18px;
            font-weight: 900;
            color: var(--text);
            letter-spacing: .01em;
            line-height: 1.3;
            display: inline-flex;
            align-items: baseline;
            gap: 6px;
        }

        .brand-main span {
            color: var(--cyan);
            font-weight: 700;
            font-size: 13px;
            letter-spacing: .04em;
        }

        .side-nav {
            flex: 1;
            padding: 30px 16px;
            display: flex;
            flex-direction: column;
            gap: 10px;
        }

        .side-link {
            position: relative;
            display: flex;
            align-items: center;
            gap: 13px;
            padding: 13px 15px;
            border-radius: 12px;
            color: var(--dim);
            border: 1px solid transparent;
            font-size: 15px;
            font-weight: 500;
            transition: all .22s ease;
        }

        .side-link i {
            width: 20px;
            text-align: center;
            font-size: 16px;
        }

        .nav-num {
            margin-left: auto;
            font-family: var(--font-num);
            font-size: 12px;
            opacity: .55;
            letter-spacing: .06em;
        }

        .side-link:hover,
        .side-link.active {
            color: #f1f6fb;
            background: linear-gradient(90deg, rgba(0, 167, 225, .15), rgba(255, 255, 255, .03));
            border-color: rgba(0, 167, 225, .16);
        }

        .side-link.active::before {
            content: "";
            position: absolute;
            left: -16px;
            top: 20%;
            bottom: 20%;
            width: 4px;
            border-radius: 0 6px 6px 0;
            background: var(--cyan);
            box-shadow: 0 0 16px var(--cyan-glow);
        }

        .side-foot {
            padding: 22px 20px 28px;
            border-top: 1px solid var(--stroke-soft);
            font-size: 13px;
            color: var(--dim);
        }

        .side-status {
            display: flex;
            align-items: center;
            gap: 9px;
            padding: 10px 13px;
            background: rgba(0, 0, 0, .2);
            border-radius: 10px;
            border: 1px solid var(--stroke-soft);
        }

        .status-dot {
            width: 8px;
            height: 8px;
            border-radius: 50%;
            background: var(--cyan);
            box-shadow: 0 0 12px rgba(0, 167, 225, .8);
            animation: pulse 2.2s infinite;
        }

        @keyframes pulse {
            0%,
            100% {
                opacity: 1;
                transform: scale(1);
            }
            50% {
                opacity: .55;
                transform: scale(.84);
            }
        }

        .main-column {
            width: calc(100% - 268px);
            margin-left: 268px;
            min-height: 100vh;
            display: flex;
            flex-direction: column;
            position: relative;
            background:
                radial-gradient(ellipse at 100% 0%, rgba(0, 140, 190, .08), transparent 52%),
                radial-gradient(ellipse at 0% 100%, rgba(232, 174, 61, .045), transparent 40%),
                var(--bg-1);
        }

        .drawer-overlay {
            display: none;
        }

        .topbar {
            display: flex;
            align-items: center;
            gap: 18px;
            min-height: 66px;
            padding: 0 clamp(20px, 4vw, 46px);
            background: rgba(9, 18, 27, .78);
            border-bottom: 1px solid var(--stroke-soft);
            backdrop-filter: blur(14px);
            -webkit-backdrop-filter: blur(14px);
            position: sticky;
            top: 0;
            z-index: 60;
        }

        .topbar-burger {
            display: none;
            background: transparent;
            border: 1px solid var(--stroke);
            border-radius: 10px;
            color: var(--text);
            font-size: 18px;
            width: 42px;
            height: 42px;
            align-items: center;
            justify-content: center;
            cursor: pointer;
            transition: all .2s ease;
        }

        .topbar-burger:hover {
            border-color: var(--cyan);
            color: var(--cyan);
        }

        .topbar-route {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 13px;
            color: var(--dim);
            letter-spacing: .02em;
        }

        .topbar-route i {
            color: var(--cyan);
        }

        .topbar-cta {
            margin-left: auto;
        }

        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 9px;
            padding: 11px 22px;
            border-radius: 999px;
            font-weight: 700;
            font-size: 14px;
            border: 1px solid transparent;
            cursor: pointer;
            transition: all .25s ease;
            line-height: 1.5;
            text-align: center;
        }

        .btn-cyan {
            color: #f7fcff;
            background: linear-gradient(95deg, var(--cyan-deep), var(--cyan));
            border-color: rgba(255, 255, 255, .12);
            box-shadow: 0 10px 28px rgba(0, 150, 220, .24);
        }

        .btn-cyan:hover {
            color: #fff;
            transform: translateY(-2px);
            box-shadow: 0 0 0 1px rgba(255, 255, 255, .08), 0 12px 32px var(--cyan-glow);
        }

        .btn-amber {
            color: #16202a;
            background: linear-gradient(100deg, var(--amber), var(--amber-bright));
            border-color: rgba(255, 255, 255, .12);
            box-shadow: 0 10px 26px rgba(232, 163, 61, .18);
        }

        .btn-amber:hover {
            transform: translateY(-2px);
            color: #101820;
            box-shadow: 0 0 0 1px rgba(255, 255, 255, .08), 0 14px 32px rgba(232, 163, 61, .3);
        }

        .btn-ghost {
            background: var(--panel);
            color: var(--text);
            border-color: var(--stroke);
            backdrop-filter: blur(8px);
        }

        .btn-ghost:hover {
            border-color: rgba(0, 167, 225, .55);
            color: var(--text);
            box-shadow: 0 10px 26px rgba(0, 0, 0, .2);
        }

        .article-hero {
            position: relative;
            overflow: hidden;
            border-bottom: 1px solid var(--stroke-soft);
            padding: 74px 0 80px;
            background:
                linear-gradient(120deg, rgba(6, 13, 21, .35) 20%, rgba(0, 96, 138, .5) 85%, rgba(232, 163, 61, .08)),
                url('/assets/images/backpic/back-1.png') center / cover no-repeat;
        }

        .article-hero::after {
            content: "";
            position: absolute;
            bottom: 0;
            right: 0;
            left: 0;
            height: 2px;
            background: linear-gradient(90deg, transparent 10%, var(--cyan) 45%, rgba(232, 163, 61, .55) 88%, transparent);
            opacity: .75;
        }

        .breadcrumb {
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            gap: 9px;
            font-size: 13px;
            color: var(--dim);
            margin-bottom: 24px;
        }

        .breadcrumb a {
            color: var(--body);
        }

        .breadcrumb a:hover {
            color: var(--amber-bright);
        }

        .breadcrumb .crumb-now {
            color: var(--text);
        }

        .breadcrumb i {
            font-size: 11px;
            color: rgba(255, 255, 255, .35);
        }

        .article-hero-label {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            font-size: 13px;
            color: var(--amber-bright);
            background: rgba(232, 163, 61, .08);
            border: 1px solid rgba(232, 163, 61, .18);
            border-radius: 999px;
            padding: 6px 15px;
            margin-bottom: 18px;
            letter-spacing: .03em;
        }

        .article-title {
            max-width: 920px;
            font-size: clamp(30px, 4.4vw, 50px);
            font-weight: 900;
            letter-spacing: -.01em;
            margin-bottom: 20px;
            color: #f8fbff;
            line-height: 1.3;
            text-shadow: 0 4px 30px rgba(0, 0, 0, .25);
        }

        .article-lead {
            max-width: 720px;
            color: rgba(219, 231, 241, .82);
            font-size: 16px;
            margin-bottom: 28px;
        }

        .post-meta {
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            gap: 28px;
            color: rgba(201, 216, 228, .72);
            font-size: 13px;
        }

        .meta-item {
            display: inline-flex;
            align-items: center;
            gap: 9px;
        }

        .meta-item i {
            color: var(--amber);
            width: 15px;
        }

        .post-category-badge {
            background: rgba(0, 167, 225, .12);
            border: 1px solid rgba(0, 167, 225, .25);
            color: #82daf8;
            padding: 4px 12px;
            border-radius: 999px;
            font-size: 13px;
            font-weight: 600;
        }

        .post-meta-divider {
            width: 1px;
            height: 16px;
            background: rgba(255, 255, 255, .16);
        }

        .article-body-section {
            flex: 1;
            padding: var(--section-gap) 0 62px;
        }

        .article-card {
            background: linear-gradient(180deg, rgba(255, 255, 255, .075), rgba(255, 255, 255, .055));
            border: 1px solid var(--stroke);
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-card);
            backdrop-filter: blur(14px);
            padding: clamp(28px, 5vw, 64px);
            position: relative;
            overflow: hidden;
        }

        .article-card::before {
            content: "";
            position: absolute;
            top: 0;
            left: 40px;
            height: 3px;
            width: 98px;
            border-radius: 0 0 8px 8px;
            background: linear-gradient(90deg, var(--cyan), transparent);
        }

        .entry-body {
            max-width: 840px;
            margin: 0 auto;
            font-size: 16px;
            line-height: 1.95;
            color: #c9d5df;
        }

        .entry-body > h1:first-of-type {
            font-size: 28px;
            margin-top: 0;
        }

        .entry-body h1,
        .entry-body h2,
        .entry-body h3 {
            margin-top: 46px;
            margin-bottom: 22px;
            color: var(--text);
            line-height: 1.45;
        }

        .entry-body h2 {
            font-size: clamp(21px, 3vw, 27px);
            border-left: 4px solid var(--amber);
            background: linear-gradient(90deg, rgba(0, 167, 225, .1), transparent 80%);
            padding-left: 18px;
            padding-top: 4px;
            padding-bottom: 4px;
            border-radius: 0 10px 10px 0;
        }

        .entry-body h3 {
            font-size: 20px;
            display: flex;
            align-items: center;
            gap: 10px;
        }

        .entry-body h3::before {
            content: "";
            width: 8px;
            height: 8px;
            background: var(--cyan);
            border-radius: 2px;
            transform: rotate(45deg);
            flex: none;
        }

        .entry-body p {
            margin-bottom: 1.36em;
        }

        .entry-body a {
            border-bottom: 1px solid rgba(0, 167, 225, .35);
        }

        .entry-body a:hover {
            border-bottom-color: var(--amber);
        }

        .entry-body blockquote {
            margin: 36px 0;
            padding: 18px 24px;
            border-radius: 0 14px 14px 0;
            border-left: 4px solid var(--amber);
            background: rgba(0, 0, 0, .22);
            color: #b6c6d2;
            font-style: normal;
            font-size: 16px;
        }

        .entry-body ul,
        .entry-body ol {
            margin: 0 0 1.4em 1.35em;
        }

        .entry-body li {
            margin-bottom: .5em;
        }

        .entry-body li::marker {
            color: var(--cyan);
        }

        .entry-body table {
            width: 100%;
            border-collapse: collapse;
            background: rgba(0, 0, 0, .15);
            border-radius: 12px;
            overflow: hidden;
            margin: 34px 0;
            border: 1px solid var(--stroke);
        }

        .entry-body th,
        .entry-body td {
            border-bottom: 1px solid rgba(255, 255, 255, .07);
            padding: 13px 16px;
            text-align: left;
        }

        .entry-body th {
            background: rgba(0, 167, 225, .09);
            color: var(--text);
            font-weight: 700;
            white-space: nowrap;
        }

        .entry-body td {
            color: #b8c8d4;
        }

        .entry-body tr:last-child td {
            border-bottom: 0;
        }

        .entry-body img {
            border-radius: 16px;
            margin: 24px 0;
            box-shadow: 0 18px 52px rgba(0, 0, 0, .3);
        }

        .entry-body code {
            background: rgba(0, 167, 225, .12);
            padding: 2px 8px;
            border-radius: 5px;
            color: #8fdbf1;
            font-size: .92em;
        }

        .article-empty {
            text-align: center;
            padding: 70px 24px 50px;
            border-radius: var(--radius-lg);
            max-width: 780px;
            margin: 0 auto;
        }

        .article-empty-icon {
            width: 86px;
            height: 86px;
            margin: 0 auto 24px;
            background: rgba(0, 167, 225, .08);
            border: 1px solid rgba(0, 167, 225, .18);
            border-radius: 22px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 34px;
            color: var(--amber);
        }

        .article-empty h3 {
            font-size: 22px;
            margin-bottom: 10px;
        }

        .article-empty p {
            max-width: 520px;
            margin: 0 auto 28px;
            color: var(--dim);
        }

        .section-block {
            padding: var(--section-gap) 0;
            border-top: 1px solid var(--stroke-soft);
        }

        .section-head {
            display: flex;
            align-items: flex-end;
            justify-content: space-between;
            gap: 20px;
            margin-bottom: 38px;
        }

        .section-title {
            display: flex;
            flex-direction: column;
            gap: 12px;
            margin: 0;
        }

        .section-kicker {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            font-size: 12px;
            color: var(--amber);
            letter-spacing: .18em;
            font-weight: 700;
            text-transform: uppercase;
        }

        .section-kicker::before {
            content: "";
            width: 24px;
            height: 1px;
            background: var(--amber);
        }

        .section-title h2 {
            font-size: clamp(25px, 3.4vw, 32px);
            margin: 0;
            letter-spacing: -.01em;
        }

        .section-head p {
            max-width: 480px;
            margin: 0;
            color: var(--dim);
            font-size: 14px;
        }

        .reco-card {
            height: 100%;
            display: flex;
            flex-direction: column;
            background: linear-gradient(180deg, rgba(255, 255, 255, .08), rgba(255, 255, 255, .045));
            border: 1px solid var(--stroke);
            border-radius: var(--radius-lg);
            overflow: hidden;
            position: relative;
            transition: all .3s ease;
            min-height: 264px;
            color: rgba(255, 255, 255, .88);
        }

        .reco-card:hover {
            transform: translateY(-6px);
            border-color: rgba(0, 167, 225, .32);
            box-shadow: 0 22px 52px rgba(0, 0, 0, .35);
        }

        .reco-card-bg {
            position: absolute;
            inset: 0;
            background-position: center;
            background-size: cover;
            background-repeat: no-repeat;
            opacity: .26;
            transition: opacity .35s ease;
        }

        .reco-card:hover .reco-card-bg {
            opacity: .4;
            transform: scale(1.04);
        }

        .reco-card-body {
            position: relative;
            z-index: 2;
            padding: 26px;
            display: flex;
            flex-direction: column;
            flex: 1;
            background: linear-gradient(180deg, rgba(7, 16, 25, .35), rgba(7, 16, 25, .75) 80%);
            border-radius: var(--radius-lg);
        }

        .reco-card-top {
            display: flex;
            align-items: center;
            justify-content: space-between;
            margin-bottom: 24px;
        }

        .reco-card-icon {
            width: 44px;
            height: 44px;
            display: flex;
            align-items: center;
            justify-content: center;
            border-radius: 12px;
            background: rgba(0, 167, 225, .16);
            border: 1px solid rgba(0, 167, 225, .22);
            color: #9fe0f5;
            font-size: 19px;
        }

        .reco-card-num {
            font-family: var(--font-num);
            color: rgba(255, 255, 255, .27);
            font-size: 24px;
            font-weight: 700;
            letter-spacing: .05em;
        }

        .reco-card h3 {
            font-size: 19px;
            margin-bottom: 10px;
            color: #f5f9fd;
        }

        .reco-card p {
            font-size: 14px;
            color: rgba(219, 234, 244, .78);
            line-height: 1.7;
            margin-bottom: 16px;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }

        .reco-card-link {
            margin-top: auto;
            display: inline-flex;
            align-items: center;
            gap: 8px;
            color: var(--amber-bright);
            font-weight: 700;
            font-size: 14px;
            border-bottom: 1px solid transparent;
            align-self: flex-start;
            transition: border-color .2s ease;
        }

        .reco-card-link:hover {
            color: var(--amber-bright);
            border-bottom-color: currentColor;
        }

        .reco-card-link i {
            font-size: 12px;
            transition: transform .2s ease;
        }

        .reco-card:hover .reco-card-link i {
            transform: translateX(4px);
        }

        .faq-mini {
            background: rgba(7, 17, 25, .35);
            border-top: 1px solid var(--stroke-soft);
            border-bottom: 1px solid var(--stroke-soft);
        }

        .faq-item {
            background: rgba(255, 255, 255, .055);
            border: 1px solid var(--stroke-soft);
            border-radius: var(--radius-md);
            padding: 0;
            margin-bottom: 14px;
            transition: background .25s, border-color .25s;
            overflow: hidden;
        }

        .faq-item[open] {
            background: rgba(255, 255, 255, .075);
            border-color: rgba(0, 167, 225, .22);
        }

        .faq-item summary {
            list-style: none;
            cursor: pointer;
            display: flex;
            align-items: center;
            gap: 14px;
            padding: 18px 22px;
            font-weight: 600;
            color: var(--text);
            min-height: 52px;
            transition: color .2s ease;
            user-select: none;
            position: relative;
            padding-right: 58px;
            font-size: 15px;
        }

        .faq-item summary::-webkit-details-marker {
            display: none;
        }

        .faq-item summary::before {
            content: "";
            width: 10px;
            height: 10px;
            flex: none;
            background: var(--cyan);
            border-radius: 3px;
            transform: rotate(45deg);
            box-shadow: 0 0 14px rgba(0, 167, 225, .35);
        }

        .faq-item summary::after {
            content: "\f078";
            font-family: "Font Awesome 6 Free";
            font-weight: 900;
            font-size: 13px;
            color: var(--amber);
            position: absolute;
            right: 22px;
            transition: transform .25s ease;
        }

        .faq-item[open] summary::after {
            transform: rotate(180deg);
        }

        .faq-item summary:hover {
            color: var(--amber-bright);
        }

        .faq-answer {
            padding: 4px 24px 22px 46px;
            color: #b3c5d1;
        }

        .faq-answer p {
            margin: 0;
            font-size: 14px;
            line-height: 1.9;
        }

        .faq-answer a {
            color: var(--cyan);
            border-bottom: 1px solid rgba(0, 167, 225, .3);
        }

        .site-footer {
            border-top: 1px solid transparent;
            position: relative;
            background: rgba(6, 13, 20, .78);
        }

        .site-footer::before {
            content: "";
            position: absolute;
            top: 0;
            right: 0;
            left: 0;
            height: 1px;
            background: linear-gradient(90deg, transparent, rgba(0, 167, 225, .45), rgba(232, 163, 61, .3), transparent);
        }

        .footer-main {
            padding: 62px 0 46px;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: minmax(230px, 1.6fr) .9fr 1.1fr;
            gap: 46px;
        }

        .footer-brand {
            display: flex;
            flex-direction: column;
            gap: 18px;
        }

        .footer-brand p {
            font-size: 14px;
            color: var(--dim);
            max-width: 380px;
            line-height: 1.9;
            margin: 0;
        }

        .footer-title {
            font-size: 15px;
            color: var(--text);
            margin-bottom: 20px;
            position: relative;
            padding-left: 15px;
        }

        .footer-title::before {
            content: "";
            position: absolute;
            left: 0;
            top: 50%;
            transform: translateY(-50%);
            width: 4px;
            height: 16px;
            background: var(--amber);
            border-radius: 4px;
        }

        .footer-col {
            display: flex;
            flex-direction: column;
            gap: 13px;
            font-size: 14px;
        }

        .footer-col a {
            width: fit-content;
            color: #a9bac7;
        }

        .footer-col a:hover {
            color: var(--cyan);
        }

        .footer-col span {
            color: var(--dim);
            line-height: 1.7;
        }

        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, .06);
            padding: 20px 0;
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 8px 20px;
            color: rgba(255, 255, 255, .42);
            font-size: 13px;
        }

        .footer-bottom .container {
            display: inline-flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 8px 20px;
        }

        .icp-text {
            opacity: .7;
        }

        @media (max-width: 1023px) {
            .side-bar {
                transform: translateX(-105%);
                transition: transform .32s cubic-bezier(.4, 0, .2, 1);
                box-shadow: 30px 0 70px rgba(0, 0, 0, .42);
            }

            .side-bar.is-open {
                transform: translateX(0);
            }

            .drawer-overlay.show {
                display: block;
                position: fixed;
                inset: 0;
                background: rgba(3, 8, 13, .68);
                backdrop-filter: blur(5px);
                -webkit-backdrop-filter: blur(5px);
                z-index: 85;
            }

            .topbar-burger {
                display: inline-flex;
            }

            .main-column {
                width: 100%;
                margin-left: 0;
            }

            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 36px;
            }

            .article-card {
                padding: 30px 24px;
            }
        }

        @media (max-width: 767px) {
            :root {
                --section-gap: 58px;
            }

            .container {
                padding-left: 18px;
                padding-right: 18px;
            }

            .topbar {
                gap: 10px;
                padding: 0 14px;
                min-height: 60px;
            }

            .topbar-route {
                font-size: 12px;
            }

            .topbar-route .route-text {
                display: none;
            }

            .topbar-cta {
                padding: 9px 15px;
                font-size: 13px;
            }

            .article-hero {
                padding: 58px 0 64px;
            }

            .article-title {
                font-size: 28px;
                line-height: 1.35;
            }

            .post-meta {
                gap: 14px;
                font-size: 12px;
            }

            .post-meta-divider {
                display: none;
            }

            .article-body-section {
                padding: 54px 0 40px;
            }

            .article-card {
                padding: 26px 18px;
                border-radius: 16px;
            }

            .entry-body {
                font-size: 15px;
                line-height: 1.85;
            }

            .entry-body h2 {
                font-size: 20px;
            }

            .footer-grid {
                grid-template-columns: 1fr;
                gap: 34px;
            }

            .footer-bottom .container {
                flex-direction: column;
                justify-content: center;
                text-align: center;
            }

            .section-head {
                flex-direction: column;
                align-items: flex-start;
                gap: 10px;
            }

            .section-head p {
                max-width: 100%;
            }

            .reco-card {
                min-height: 230px;
            }

            .faq-item summary {
                font-size: 14px;
                padding: 16px 48px 16px 16px;
            }

            .faq-answer {
                padding-left: 18px;
                padding-right: 18px;
            }
        }

        @media (max-width: 520px) {
            .btn {
                width: 100%;
                text-align: center;
            }

            .btn + .btn {
                margin-top: 0;
            }

            .topbar-cta {
                width: auto;
                padding: 8px 12px;
                font-size: 12px;
            }

            .section-title h2 {
                font-size: 23px;
            }

            .entry-body table {
                overflow-x: auto;
                display: block;
                white-space: nowrap;
            }
        }

/* roulang page: category2 */
:root {
  --bg-deep: #0a111b;
  --bg-primary: #0b1520;
  --bg-secondary: #0e1b2a;
  --brand-cyan: #00a7e1;
  --brand-blue: #0e86d4;
  --accent: #f5b544;
  --accent-deep: #e8a33d;
  --success: #46f59a;
  --text-main: #f3f7fb;
  --text-body: #c7d1dc;
  --text-dim: #8da0b0;
  --glass-bg: rgba(255, 255, 255, 0.055);
  --glass-strong: rgba(255, 255, 255, 0.09);
  --glass-border: rgba(255, 255, 255, 0.12);
  --line-light: rgba(255, 255, 255, 0.07);
  --radius-lg: 18px;
  --radius-md: 13px;
  --radius-sm: 9px;
  --shadow-card: 0 12px 34px rgba(0, 0, 0, 0.24);
  --glow-cyan: 0 0 20px rgba(0, 167, 225, 0.32);
  --glow-amber: 0 0 24px rgba(245, 181, 68, 0.22);
  --font-sans: "Noto Sans SC", "PingFang SC", "Microsoft YaHei", system-ui, -apple-system, sans-serif;
}
* , *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  background: var(--bg-deep);
  color: var(--text-body);
  font-family: var(--font-sans);
  line-height: 1.8;
  min-height: 100vh;
  margin: 0;
  padding: 0;
  -webkit-font-smoothing: antialiased;
}
body::before {
  content: "";
  position: fixed;
  inset: 0;
  background:
    radial-gradient(960px 380px at 74% -4%, rgba(0, 167, 225, 0.06), transparent 68%),
    radial-gradient(820px 360px at 3% 96%, rgba(245, 181, 68, 0.03), transparent 70%);
  z-index: -1;
  pointer-events: none;
}
img { max-width: 100%; height: auto; }
a { color: inherit; text-decoration: none; }
a:focus-visible,
button:focus-visible {
  outline: 2px solid var(--brand-cyan);
  outline-offset: 3px;
  border-radius: 4px;
}
.container { width: 100%; max-width: 1280px; margin: 0 auto; padding-left: 30px; padding-right: 30px; }
.side-overlay { display: none; position: fixed; inset: 0; background: rgba(4, 9, 15, 0.72); backdrop-filter: blur(2px); z-index: 75; }
body.nav-lock { overflow: hidden; }

/* App shell */
.app-shell { display: flex; min-height: 100vh; }
.shell-side {
  width: 260px;
  flex: 0 0 260px;
  position: fixed;
  z-index: 90;
  inset: 0 auto 0 0;
  padding: 30px 20px 22px;
  background: linear-gradient(172deg, rgba(12, 24, 36, 0.98), rgba(10, 17, 27, 0.99));
  border-right: 1px solid rgba(255, 255, 255, 0.07);
  display: flex;
  flex-direction: column;
  min-height: 100vh;
}
.shell-main { width: calc(100% - 260px); margin-left: 260px; display: flex; flex-direction: column; min-width: 0; }
.side-logo { display: flex; align-items: center; gap: 10px; padding: 0 6px 24px; margin-bottom: 6px; border-bottom: 1px solid rgba(255, 255, 255, 0.08); }
.side-logo .logo-mark {
  display: inline-flex; align-items: center; justify-content: center;
  width: 42px; height: 42px; border-radius: 12px;
  background: linear-gradient(145deg, var(--brand-cyan), var(--brand-blue));
  color: #fff; font-size: 19px;
  box-shadow: 0 0 16px rgba(0, 167, 225, 0.25);
}
.brand-main { font-size: 19px; font-weight: 800; color: var(--text-main); line-height: 1.25; letter-spacing: 0.005em; }
.brand-main span { color: var(--brand-cyan); }
.side-nav { display: flex; flex-direction: column; gap: 5px; margin-top: 22px; }
.side-link {
  display: flex; align-items: center;
  padding: 12px 13px;
  color: var(--text-dim);
  border-radius: 12px;
  font-size: 14px;
  border-left: 3px solid transparent;
  transition: all 0.22s ease;
  gap: 12px;
}
.side-link i { width: 21px; text-align: center; font-size: 15px; }
.side-link .nav-num { margin-left: auto; font-size: 11px; opacity: 0.5; letter-spacing: 0.06em; color: #8da; }
.side-link:hover { background: rgba(0, 167, 225, 0.08); color: #fff; }
.side-link.active { background: rgba(0, 167, 225, 0.13); color: #fff; border-left: 3px solid var(--brand-cyan); box-shadow: inset 0 0 24px rgba(0, 167, 225, 0.04); }
.side-link.active i { color: var(--brand-cyan); }
.side-status { margin-top: auto; display: flex; align-items: center; gap: 9px; padding: 15px 6px 0; font-size: 13px; color: #8fa9b7; border-top: 1px solid rgba(255, 255, 255, 0.06); }
.status-dot { width: 8px; height: 8px; border-radius: 50%; background: var(--success); box-shadow: 0 0 10px rgba(70, 245, 154, 0.65); animation: statusPulse 2s infinite; }
@keyframes statusPulse { 0%, 100% { opacity: 1; } 50% { opacity: 0.5; } }

/* Topbar */
.app-topbar {
  position: sticky;
  top: 0;
  z-index: 70;
  margin: 0 0 0 auto;
  background: rgba(10, 17, 27, 0.66);
  -webkit-backdrop-filter: blur(14px);
  backdrop-filter: blur(14px);
  border-bottom: 1px solid rgba(255, 255, 255, 0.07);
  padding: 12px 28px;
}
.topbar-content { display: flex; align-items: center; gap: 14px; max-width: 1280px; margin: 0 auto; }
.topbar-short { color: var(--text-dim); font-size: 13px; display: flex; align-items: center; gap: 9px; }
.topbar-short i { color: var(--brand-cyan); }
.topbar-mobile-brand { display: none; align-items: center; gap: 8px; color: var(--text-main); font-weight: 800; }
.mobile-toggle {
  display: none;
  align-items: center; gap: 8px;
  background: rgba(255, 255, 255, 0.07);
  border: 1px solid rgba(255, 255, 255, 0.14);
  color: #fff;
  border-radius: 10px;
  padding: 9px 14px;
  font-size: 14px;
  cursor: pointer;
}
.mobile-toggle i { color: var(--brand-cyan); }
.topbar-cta { margin-left: auto; flex-shrink: 0; }

/* Buttons */
.btn {
  display: inline-flex; align-items: center; justify-content: center;
  gap: 9px;
  padding: 12px 22px;
  border-radius: 12px;
  font-weight: 700;
  font-size: 15px;
  line-height: 1.2;
  border: 1px solid transparent;
  transition: transform 0.22s ease, box-shadow 0.22s ease, background 0.22s ease, border-color 0.22s ease;
}
.btn i { font-size: 13px; }
.btn-primary { background: linear-gradient(120deg, #0d79c4, var(--brand-cyan)); color: #fff; box-shadow: 0 6px 18px rgba(0, 167, 225, 0.25); }
.btn-primary:hover { background: linear-gradient(120deg, var(--brand-cyan), #0d79c4); box-shadow: 0 0 22px rgba(0, 167, 225, 0.45); color: #fff; transform: translateY(-1px); }
.btn-ghost { background: rgba(255, 255, 255, 0.06); border-color: rgba(255, 255, 255, 0.16); color: #f2f7fa; }
.btn-ghost:hover { background: rgba(255, 255, 255, 0.11); border-color: rgba(0, 167, 225, 0.5); color: #fff; transform: translateY(-1px); }
.btn-amber { background: linear-gradient(120deg, var(--accent-deep), var(--accent)); color: #1a1308; box-shadow: 0 6px 18px rgba(245, 181, 68, 0.2); }
.btn-amber:hover { box-shadow: var(--glow-amber); color: #1a1308; transform: translateY(-1px); }

/* Cate hero */
.cate-hero { position: relative; overflow: hidden; border-bottom: 1px solid var(--line-light); }
.cate-hero::before {
  content: "";
  position: absolute; inset: 0; z-index: -2;
  background: linear-gradient(125deg, rgba(12, 22, 34, 0.96), rgba(0, 26, 40, 0.88) 45%, rgba(8, 16, 25, 0.96)), url('/assets/images/backpic/back-2.png') center / cover no-repeat;
}
.cate-hero::after {
  content: "";
  position: absolute;
  left: 0; right: 0; bottom: 0; height: 3px;
  background: linear-gradient(90deg, var(--brand-cyan), rgba(245, 181, 68, 0.7), transparent 90%);
  opacity: 0.45;
}
.cate-hero .page-hero-inner { display: flex; align-items: center; justify-content: space-between; gap: 40px; padding: 60px 0 52px; max-width: 1280px; margin: 0 auto; width: 100%; }
.hero-breadcrumb { font-size: 13px; display: flex; flex-wrap: wrap; align-items: center; gap: 8px; color: var(--text-dim); margin-bottom: 14px; }
.hero-breadcrumb a { color: #8dabc0; transition: color 0.2s; }
.hero-breadcrumb a:hover { color: var(--brand-cyan); }
.cate-hero h1 { font-size: clamp(30px, 3.4vw, 46px); line-height: 1.3; margin: 8px 0 15px; color: var(--text-main); font-weight: 900; }
.cate-hero h1 .accent-line { color: var(--brand-cyan); }
.cate-hero .lead { max-width: 680px; font-size: 16px; color: rgba(215, 227, 235, 0.88); margin: 0; }
.cate-hero-side { flex: 0 0 300px; background: rgba(255, 255, 255, 0.05); border: 1px solid rgba(255, 255, 255, 0.11); backdrop-filter: blur(13px); border-radius: var(--radius-lg); padding: 20px 22px; box-shadow: var(--shadow-card); }
.cate-hero-side .tagline-eyebrow { display: inline-flex; align-items: center; gap: 7px; font-size: 12px; color: var(--accent); letter-spacing: 0.08em; text-transform: uppercase; }
.cate-hero-side .side-hero-list { margin: 12px 0 0; list-style: none; padding: 0; display: flex; flex-direction: column; gap: 9px; }
.cate-hero-side li { font-size: 14px; color: #cbd7e2; display: flex; gap: 9px; align-items: center; }
.cate-hero-side li i { color: var(--brand-cyan); font-size: 13px; width: 18px; }

/* Layout helpers  */
.section-pad { padding: 72px 0; }
.section-head { margin-bottom: 44px; max-width: 840px; }
.section-head.center { margin-left: auto; margin-right: auto; text-align: center; }
.eyebrow { display: inline-flex; align-items: center; gap: 9px; color: var(--brand-cyan); font-size: 14px; font-weight: 600; letter-spacing: .06em; }
.eyebrow::after { content: ""; height: 1px; width: 50px; background: linear-gradient(90deg, rgba(0, 167, 225, .65), transparent); }
.eyebrow.sm::after { width: 26px; }
.section-title { font-size: clamp(26px, 3vw, 34px); font-weight: 800; color: var(--text-main); margin: 10px 0 13px; line-height: 1.36; }
.section-head p { font-size: 16px; color: var(--text-dim); margin: 0; line-height: 1.9; }
.glass-card { background: var(--glass-bg); border: 1px solid var(--glass-border); border-radius: var(--radius-lg); -webkit-backdrop-filter: blur(9px); backdrop-filter: blur(9px); box-shadow: var(--shadow-card); }
.card-title { font-size: 21px; font-weight: 700; color: var(--text-main); margin: 0 0 10px; line-height: 1.45; }
.text-cyan { color: var(--brand-cyan); }
.text-amber { color: var(--accent); }
.divider-glow { width: 90px; height: 3px; border: 0; margin: 0; background: linear-gradient(90deg, var(--brand-cyan), transparent); opacity: .7; border-radius: 6px; }

/* overview block */
.overview-wrap { display: grid; grid-template-columns: 1fr 280px; gap: 26px; }
.overview-main-card { overflow: hidden; display: flex; flex-direction: column; }
.overview-img { width: 100%; height: 340px; object-fit: cover; display: block; border-bottom: 1px solid var(--line-light); }
.overview-txt { padding: 30px 34px 36px; }
.overview-txt p { line-height: 1.95; margin: 0 0 17px; }
.overview-txt p:last-child { margin-bottom: 0; }
.overview-txt .feature-link { display: inline-flex; align-items: center; gap: 8px; color: var(--brand-cyan); font-weight: 600; font-size: 15px; }
.overview-txt .feature-link:hover { color: var(--accent); }
.guide-panel { padding: 27px 24px; align-self: start; position: relative; }
.guide-panel::before { content: ""; width: 42px; height: 3px; background: linear-gradient(90deg, var(--accent), transparent); display: block; border-radius: 9px; margin-bottom: 17px; }
.guide-panel h3 { color: #fff; margin: 0 0 17px; font-size: 18px; font-weight: 800; }
.guide-panel ol { margin: 0; padding-left: 21px; display: flex; flex-direction: column; gap: 12px; }
.guide-panel li { color: #c8d3df; font-size: 14px; line-height: 1.7; }
.guide-panel li a { color: var(--brand-cyan); border-bottom: 1px dashed rgba(0, 167, 225, 0.4); transition: color .2s, border .2s; }
.guide-panel li a:hover { color: var(--accent); border-color: var(--accent); }

/* 双模块 value */
.module-split { display: grid; grid-template-columns: 1.3fr 0.88fr 0.88fr; grid-template-rows: auto auto; gap: 24px; }
.module-feature { padding: 30px 27px; transition: border-color .25s ease, transform .25s ease; }
.module-feature:hover { border-color: rgba(0, 167, 225, .4); transform: translateY(-3px); }
.module-feature.wide { grid-column: span 2; grid-row: span 2; }
.module-icon { width: 48px; height: 48px; border-radius: 14px; display: flex; align-items: center; justify-content: center; font-size: 21px; margin-bottom: 20px; background: rgba(0, 167, 225, .1); color: var(--brand-cyan); border: 1px solid rgba(0, 167, 225, 0.16); }
.module-feature.wide .module-icon { color: var(--accent); background: rgba(245, 181, 68, .1); border-color: rgba(245, 181, 68, .2); }
.module-feature h3 { font-size: 20px; color: #f4f8fb; font-weight: 700; line-height: 1.5; margin-bottom: 12px; }
.module-feature p { margin-bottom: 0; color: #bdcadb; font-size: 15px; line-height: 1.8; }
.module-feature ul { margin: 12px 0 0; padding-left: 19px; }
.module-feature li { color: #bdcadb; font-size: 14px; line-height: 1.9; }
.module-feature li::marker { color: var(--accent); }
.wide-banner { grid-column: 1 / -1; padding: 26px 28px; display: flex; gap: 22px; align-items: center; background: rgba(0, 167, 225, 0.07); border: 1px solid rgba(0, 167, 225, 0.18); border-radius: var(--radius-lg); margin-top: 6px; }
.wide-banner .wb-icon { width: 46px; height: 46px; border-radius: 12px; background: linear-gradient(145deg, var(--accent), var(--accent-deep)); color: #151008; display: flex; align-items: center; justify-content: center; font-size: 20px; box-shadow: var(--glow-amber); }
.wide-banner strong { color: #fff; font-size: 20px; }
.wide-banner p { margin: 3px 0 0; font-size: 15px; }
.wide-banner .btn { margin-left: auto; flex-shrink: 0; }
.wide-banner .btn i { margin-right: 4px; }

/* split block zpattern */
.z-row { display: grid; grid-template-columns: 1fr 1fr; gap: 42px; align-items: center; margin-bottom: 80px; }
.z-row:last-child { margin-bottom: 0; }
.z-row .z-media { position: relative; overflow: hidden; border-radius: var(--radius-lg); height: 390px; border: 1px solid var(--glass-border); box-shadow: var(--shadow-card); }
.z-row .z-media img { width: 100%; height: 100%; object-fit: cover; display: block; transition: transform .5s ease; }
.z-row .z-media:hover img { transform: scale(1.02); }
.z-media:after { content: ""; position: absolute; left: 0; bottom: 0; height: 3px; width: 55%; background: linear-gradient(90deg, var(--accent), transparent); opacity: .85; }
.z-copy .z-index-label { font-size: 13px; font-weight: 600; color: var(--accent); letter-spacing: .08em; }
.z-copy h3 { font-size: clamp(23px, 2.4vw, 31px); color: var(--text-main); margin: 13px 0 15px; line-height: 1.45; font-weight: 800; }
.z-copy p { color: var(--text-dim); font-size: 15px; margin: 0 0 10px; line-height: 1.9; }
.z-copy p strong { color: #dbe7ef; font-weight: 600; }
.z-stats { display: flex; flex-wrap: wrap; gap: 22px; margin-top: 17px; }
.z-stats .mini-stat { color: #d2dce5; font-size: 14px; display: flex; align-items: center; gap: 8px; }
.z-stats .mini-stat i { color: var(--success); }
.z-row.reverse .z-media { order: 2; }

/* 4 steps */
.flow-wrap { position: relative; margin-top: 46px; }
.flow-track { display: grid; grid-template-columns: 1fr 1fr 1fr 1fr; gap: 18px; position: relative; }
.flow-item { position: relative; padding: 31px 22px 32px; background: var(--glass-bg); border: 1px solid var(--glass-border); border-radius: var(--radius-lg); overflow: hidden; transition: transform .25s, border-color .25s; }
.flow-item::before { content: ""; position: absolute; left: -4px; top: 30px; bottom: 30px; width: 3px; background: linear-gradient(180deg, var(--brand-cyan), rgba(245, 181, 68, 0.6)); border-radius: 9px; }
.flow-item:hover { transform: translateY(-4px); border-color: rgba(0, 167, 225, .35); }
.flow-num { font-size: 38px; font-weight: 900; letter-spacing: -0.02em; margin: 0; background: linear-gradient(145deg, #f8e3b4, var(--accent)); -webkit-background-clip: text; background-clip: text; color: transparent; line-height: 1.2; }
.flow-item h4 { font-size: 18px; color: var(--text-main); margin: 11px 0 8px; font-weight: 700; }
.flow-item p { font-size: 14px; color: var(--text-dim); line-height: 1.75; margin: 0; }
.flow-link-deco { position: absolute; top: 44px; right: -17px; width: 60px; height: 1px; background: linear-gradient(90deg, rgba(0,156,208,.15), rgba(0,156,208,.65)); overflow: hidden; display: none; }
.flow-item:not(:last-child) .flow-link-deco { display: block; }
.flow-note { display: flex; align-items: center; gap: 10px; background: rgba(255, 255, 255, 0.035); border: 1px solid rgba(255, 255, 255, 0.08); padding: 14px 20px; border-radius: var(--radius-md); margin-top: 25px; color: var(--text-dim); font-size: 14px; max-width: 920px; }
.flow-note i { color: var(--accent); }

/* FAQ */
.faq-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; column-gap: 34px; align-items: start; }
.faq-item { background: var(--glass-bg); border: 1px solid var(--glass-border); border-radius: var(--radius-md); overflow: hidden; transition: border-color .25s ease; }
.faq-item.open { border-color: rgba(0, 167, 225, 0.35); }
.faq-q {
  width: 100%;
  background: transparent;
  border: 0;
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: 13px;
  padding: 18px 20px;
  font-family: inherit;
  text-align: left;
  color: var(--text-main);
  font-size: 15px;
  font-weight: 600;
  line-height: 1.6;
}
.faq-q i { color: var(--brand-cyan); font-size: 13px; flex: 0 0 auto; }
.faq-q .chev { margin-left: auto; color: var(--text-dim); transition: transform .26s; }
.faq-item.open .faq-q .chev { transform: rotate(45deg); color: var(--accent); }
.faq-a { max-height: 0; overflow: hidden; transition: max-height .35s ease; }
.faq-item.open .faq-a { max-height: 420px; }
.faq-a-inner { padding: 0 21px 20px 47px; color: #bccad7; font-size: 15px; line-height: 1.8; background: rgba(0, 0, 0, 0.12); border-top: 1px solid rgba(255,255,255,0.04); }

/* CTA band */
.cta-band { margin-top: 64px; position: relative; border-radius: var(--radius-lg); border: 1px solid rgba(0, 167, 225, 0.23); background: rgba(18, 32, 47, 0.75); overflow: hidden; padding: 43px 44px; display: flex; align-items: center; justify-content: space-between; gap: 22px; }
.cta-band::after { content: ""; background: url('/assets/images/backpic/back-3.png') center / cover no-repeat; opacity: 0.13; position: absolute; inset: 0; z-index: 0; }
.cta-copy, .cta-actions { position: relative; z-index: 2; }
.cta-copy h2 { color: #fff; font-size: 25px; margin: 0 0 8px; font-weight: 800; }
.cta-copy p { margin: 0; color: var(--text-dim); font-size: 15px; }
.cta-actions { display: flex; gap: 13px; flex-wrap: wrap; justify-content: flex-end; }

/* Footer shared */
.site-footer { margin-top: 50px; background: rgba(7, 13, 21, 0.85); border-top: 1px solid rgba(255, 255, 255, 0.09); position: relative; }
.site-footer::before { content: ""; width: 100%; height: 2px; display: block; background: linear-gradient(90deg, rgba(0, 167, 225, 0), rgba(0, 167, 225, .6), rgba(245,181,68,.4), transparent); position: absolute; top: 0; left: 0; }
.footer-main { padding: 55px 0 38px; }
.footer-grid { display: grid; grid-template-columns: 1.5fr 1fr 1.1fr; gap: 38px; }
.footer-brand a { display: inline-flex; }
.footer-brand p { margin: 16px 0 0; color: var(--text-dim); font-size: 14px; line-height: 1.85; max-width: 420px; }
.footer-title { color: #f2f7fb; font-size: 15px; font-weight: 700; margin-bottom: 17px; }
.footer-col { display: flex; flex-direction: column; gap: 10px; font-size: 14px; }
.footer-col a { color: var(--text-dim); width: fit-content; transition: color .2s; }
.footer-col a:hover { color: var(--brand-cyan); }
.footer-col .dim { color: var(--text-dim); line-height: 1.7; }
.footer-bottom { border-top: 1px solid rgba(255, 255, 255, 0.06); padding: 19px 0; }
.footer-bottom .container { display: flex; flex-direction: column; gap: 5px; }
.copy-text, .icp-text { font-size: 13px; color: #73899d; }
.footer-col .footer-brand a { font-size: 19px; }
.icon-space { margin-right: 4px; }

@media (min-width: 1024px) {
  .mobile-toggle { display: none !important; }
}

@media (max-width: 1023.98px) {
  .shell-side { transform: translateX(-100%); transition: transform .32s ease; width: 290px; box-shadow: none; }
  .shell-side.is-open { transform: translateX(0); box-shadow: 0 0 66px rgba(0, 0, 0, .5); }
  .shell-main { margin-left: 0; width: 100%; }
  .side-overlay.is-visible { display: block; }
  .mobile-toggle, .topbar-mobile-brand { display: inline-flex; }
  .topbar-short span { display: none; }
  .app-topbar { padding: 11px 17px; }
  .shell-side { min-height: 100vh; }
  .overview-wrap { grid-template-columns: 1fr; }
  .guide-panel ol { display: grid; grid-template-columns: 1fr 1fr; }
  .module-split { grid-template-columns: 1fr 1fr; }
  .module-feature.wide { grid-column: auto; grid-row: auto; }
  .wide-banner { grid-column: 1 / -1; flex-wrap: wrap; }
  .flow-track { grid-template-columns: 1fr 1fr; }
  .flow-item { max-width: 100%; }
  .faq-grid { grid-template-columns: 1fr; }
  .cate-hero .page-hero-inner { flex-direction: column; padding-top: 48px; }
  .cate-hero-side { width: 100%; flex: 1 1 auto; }
}

@media (max-width: 767.98px) {
  .container { padding-left: 19px; padding-right: 19px; }
  .section-pad { padding: 52px 0; }
  .cate-hero .page-hero-inner { padding: 37px 0 35px; gap: 23px; }
  .cate-hero h1 { font-size: 29px; }
  .overview-txt { padding: 22px; }
  .overview-txt .card-title { font-size: 19px; }
  .overview-img { height: 230px; }
  .module-split { grid-template-columns: 1fr; }
  .union-grid { grid-template-columns: 1fr; }
  .z-row { grid-template-columns: 1fr; gap: 28px; margin-bottom: 56px; }
  .z-row.reverse .z-media { order: 0; }
  .z-row .z-media { height: 255px; }
  .z-media { height: 255px !important; }
  .flow-track { grid-template-columns: 1fr; }
  .flow-link-deco { display: none !important; }
  .footer-grid { grid-template-columns: 1fr; gap: 28px; }
  .footer-main { padding: 43px 0 30px; }
  .cta-band { flex-direction: column; padding: 28px 24px; align-items: stretch; }
  .cta-actions { justify-content: flex-start; }
  .topbar-short { display: none; }
  .topbar-content .btn { padding: 10px 14px; font-size: 14px; }
  .btn i + span { margin-left: 2px; }
  .wide-banner { align-items: flex-start; }
  .wide-banner .btn { margin-left: 0; margin-top: 10px; }
  .guide-panel ol { grid-template-columns: 1fr; }
}

/* roulang page: category3 */
:root{
  --bg-deep:#0a111b;
  --bg-base:#0d1725;
  --bg-blue:#0e1b2a;
  --bg-panel:rgba(255,255,255,.055);
  --bg-panel-strong:rgba(255,255,255,.09);
  --bg-panel-deep:rgba(0,0,0,.26);
  --line:rgba(255,255,255,.1);
  --line-soft:rgba(255,255,255,.07);
  --brand:#00a7e1;
  --brand-blue:#1677ff;
  --cyan:#23d3ee;
  --gold:#f5b544;
  --gold-soft:#e8a33d;
  --text:#c9d5e1;
  --title:#f1f6fb;
  --weak:#8da0b0;
  --danger:#ff7a7a;
  --radius-lg:18px;
  --radius-md:14px;
  --radius-sm:9px;
  --shadow-card:0 18px 50px rgba(0,0,0,.28), 0 0 0 1px rgba(255,255,255,.035) inset;
  --shadow-glow:0 0 0 1px rgba(35,211,238,.4), 0 14px 40px rgba(0,167,225,.18);
  --shadow-gold:0 0 0 1px rgba(245,181,68,.35),0 14px 40px rgba(245,181,68,.12);
  --grad-brand:linear-gradient(135deg,#0875c3,#00a7e1 58%,#23d3ee);
  --grad-line:linear-gradient(90deg,rgba(35,211,238,.7),rgba(255,255,255,.04) 55%,rgba(245,181,68,.75));
  --font-body:"Noto Sans SC","PingFang SC","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",Roboto,Arial,sans-serif;
  --font-num:"Rajdhani","Noto Sans SC",sans-serif;
}
*{box-sizing:border-box;margin:0;padding:0}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  font-family:var(--font-body);
  font-size:16px;line-height:1.8;color:var(--text);
  background:radial-gradient(1200px 600px at 80% -10%,rgba(0,167,225,.08),transparent 60%),radial-gradient(900px 500px at 0% 10%,rgba(35,211,238,.035),transparent 50%),linear-gradient(155deg,var(--bg-deep),var(--bg-base) 55%,#0a1626);
  min-height:100vh;
  overflow-x:hidden;
}
a{color:var(--cyan);text-decoration:none;transition:color .25s ease,border-color .25s ease,box-shadow .25s ease}
a:hover{color:#dff6ff}
img{max-width:100%;height:auto;display:block}
button,input,textarea,select{font:inherit;color:inherit}
ul,ol{list-style:none}
::selection{background:rgba(0,167,225,.32);color:#fff}

.app-shell{display:flex;align-items:flex-start;width:100%;min-height:100vh}
.main-shell{flex:1;min-width:0;margin-left:260px;width:calc(100% - 260px)}

.container{max-width:1320px;margin:0 auto;padding-left:32px;padding-right:32px}
.mobile-bar{display:none}
.side-shell{
  position:fixed;inset:0 auto 0 0;width:260px;z-index:100;
  display:flex;flex-direction:column;background:linear-gradient(180deg,#09131f,rgba(7,17,28,.96));
  border-right:1px solid rgba(255,255,255,.06);
  padding:22px 0 20px;
}
.side-brand{display:block;padding:0 22px 20px;border-bottom:1px solid rgba(255,255,255,.06)}
.brand-main{
  display:inline-block;color:var(--title);font-weight:800;font-size:19px;letter-spacing:.015em;line-height:1.35;
}
.brand-main span{display:block;font-size:14px;font-weight:600;color:var(--cyan);letter-spacing:.12em;margin-top:4px}
.brand-badge{
  display:inline-flex;align-items:center;gap:6px;margin-top:8px;
  background:rgba(0,167,225,.1);border:1px solid rgba(0,167,225,.24);
  color:#9ae5ff;font-size:12px;padding:3px 9px;border-radius:6px;
}
.side-nav{display:flex;flex-direction:column;gap:4px;padding:24px 14px 16px;flex:1}
.side-link{
  display:flex;align-items:center;gap:12px;
  color:#a6b6c5;font-size:14px;padding:11px 14px;border-radius:12px;
  border:1px solid transparent;position:relative;font-weight:500;transition:.22s ease;
}
.side-link i{width:20px;text-align:center;color:#6e8294;font-size:15px;transition:.22s}
.side-link .nav-num{
  margin-left:auto;font-family:var(--font-num);font-size:11px;color:#43566a;letter-spacing:.05em;
}
.side-link:hover{background:rgba(255,255,255,.05);color:#dee9f2;border-color:rgba(255,255,255,.06)}
.side-link:hover i{color:var(--cyan)}
.side-link.active{
  background:linear-gradient(90deg,rgba(0,167,225,.14),rgba(0,167,225,.04));color:#fff;
  border-color:rgba(0,167,225,.24);
}
.side-link.active::before{
  content:"";position:absolute;left:-14px;top:10px;bottom:10px;width:4px;border-radius:0 4px 4px 0;
  background:linear-gradient(180deg,var(--cyan),var(--brand-blue));box-shadow:0 0 16px rgba(0,167,225,.75);
}
.side-link.active i{color:var(--cyan)}
.side-status{
  margin:12px 16px 4px;padding:12px 14px;border-radius:12px;background:rgba(0,0,0,.2);
  border:1px solid rgba(255,255,255,.05);display:flex;align-items:center;gap:10px;font-size:13px;color:var(--weak)
}
.status-dot{width:8px;height:8px;border-radius:50%;background:#28e0a0;box-shadow:0 0 0 3px rgba(40,224,160,.12);animation:pluse 1.8s infinite}
@keyframes pluse{0%{box-shadow:0 0 0 0 rgba(40,224,160,.4)}70%{box-shadow:0 0 0 8px rgba(40,224,160,0)}100%{box-shadow:0 0 0 0 rgba(40,224,160,0)}}
.side-status b{color:#cbe4f0;font-weight:600}

.main-header{
  height:64px;background:rgba(8,16,27,.72);backdrop-filter:blur(16px);border-bottom:1px solid rgba(255,255,255,.05);
  display:flex;align-items:center;justify-content:flex-end;padding:0 40px;position:sticky;top:0;z-index:70;
}
.header-cta{
  display:inline-flex;align-items:center;gap:8px;font-size:14px;
  background:linear-gradient(135deg,#0d8bc8,#00a7e1);color:#fff !important;padding:8px 20px;border-radius:999px;
  font-weight:600;letter-spacing:.02em;box-shadow:0 6px 22px rgba(0,167,225,.2);transition:.25s;
}
.header-cta:hover{box-shadow:0 0 0 1px rgba(35,211,238,.5),0 10px 26px rgba(0,167,225,.3);transform:translateY(-2px)}
.header-cta i{margin-right:2px}

.hero-mini{
  position:relative;overflow:hidden;
  background:
    linear-gradient(90deg,rgba(6,14,23,.92) 0%,rgba(8,22,32,.73) 56%,rgba(7,16,27,.62)),
    url('/assets/images/backpic/back-2.png') center/cover no-repeat;
  border-bottom:1px solid rgba(255,255,255,.06);
  padding:70px 0 64px;
}
.hero-mini::after{
  content:"";position:absolute;height:3px;left:0;right:0;bottom:0;background:var(--grad-line);
}
.hero-grid{display:flex;justify-content:space-between;align-items:flex-end;gap:30px;position:relative;z-index:2}
.breadcrumb-row{font-size:13px;color:var(--weak);margin-bottom:14px;display:flex;flex-wrap:wrap;gap:8px}
.breadcrumb-row a{color:#91bcd7}
.breadcrumb-row a:hover{color:#fff;text-decoration:underline}
.hero-title{
  font-size:40px;line-height:1.24;color:var(--title);font-weight:900;letter-spacing:.015em;margin-bottom:16px;
}
.hero-title em{font-style:normal;color:var(--cyan);background:linear-gradient(120deg,#fff,#9ee8ff);-webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent;padding-right:4px}
.hero-mini .lead{max-width:700px;font-size:16px;line-height:1.9;color:#b9c9d6}
.hero-side{flex-shrink:0;text-align:right}
.hero-tag{
  display:inline-flex;align-items:center;gap:9px;background:rgba(0,167,225,.12);
  border:1px solid rgba(0,167,225,.3);color:#a6ecff;padding:8px 18px;border-radius:999px;font-size:14px;
}
.hero-tag span{width:7px;height:7px;border-radius:50%;background:var(--gold);box-shadow:0 0 12px var(--gold)}
.hero-tag small{color:var(--weak);font-weight:400;margin-left:2px}

.section{padding:84px 0}
.section-alt{background:rgba(0,0,0,.11);border-top:1px solid rgba(255,255,255,.05);border-bottom:1px solid rgba(255,255,255,.05)}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:20px;margin-bottom:36px;flex-wrap:wrap}
.kicker{
  display:inline-flex;align-items:center;gap:7px;font-size:13px;letter-spacing:.2em;color:var(--cyan);
  font-weight:600;margin-bottom:8px;
}
.kicker::before{content:"";width:24px;height:2px;background:var(--grad-brand);border-radius:2px}
.section-title{font-size:30px;color:var(--title);font-weight:800;letter-spacing:.01em;line-height:1.3}
.section-desc{color:var(--weak);max-width:650px;font-size:15px}

.lead-card,
.glass-card{
  background:var(--bg-panel);border:1px solid var(--line-soft);border-radius:var(--radius-lg);
  backdrop-filter:blur(10px);box-shadow:var(--shadow-card);
  transition:transform .25s ease,border-color .25s ease,box-shadow .25s ease;
}
.glass-card:hover{transform:translateY(-4px);border-color:rgba(35,211,238,.26);box-shadow:0 20px 44px rgba(0,0,0,.28),0 0 0 1px rgba(35,211,238,.16) inset,0 0 28px rgba(0,167,225,.08)}

.panel-strong{background:var(--bg-panel-strong);border:1px solid rgba(255,255,255,.09)}
.panel-deep{background:var(--bg-panel-deep);border:1px solid rgba(0,0,0,.1)}

.guide-layout{display:grid;grid-template-columns:1.2fr .6fr .6fr;gap:24px;align-items:stretch}
.guide-main{
  background:linear-gradient(135deg,rgba(0,167,225,.10),rgba(255,255,255,.04)),var(--bg-panel);
  border:1px solid rgba(0,167,225,.2);border-radius:var(--radius-lg);padding:28px 30px;position:relative;overflow:hidden;
}
.guide-main::before{content:"";position:absolute;right:-46px;top:-46px;width:150px;height:150px;border-radius:50%;background:rgba(35,211,238,.08);filter:blur(10px)}
.guide-title{font-size:20px;color:#ecf5fb;font-weight:700;margin-bottom:6px;display:flex;gap:10px;align-items:center}
.guide-title i{color:var(--cyan);font-size:22px}
.guide-main p{color:#aebfce;font-size:15px}
.guide-links{display:flex;flex-wrap:wrap;gap:10px;margin-top:20px}
.tag-chip{
  display:inline-flex;align-items:center;gap:7px;background:rgba(255,255,255,.07);border:1px solid rgba(255,255,255,.09);
  color:#cbd7e3;padding:7px 14px;border-radius:999px;font-size:14px;cursor:default;transition:.2s;
}
.tag-chip i{color:var(--cyan);font-size:13px}
.tag-chip:hover{background:rgba(0,167,225,.13);border-color:rgba(0,167,225,.3);color:#fff}
.sub-card{
  border-radius:var(--radius-lg);background:var(--bg-panel);border:1px solid var(--line-soft);padding:26px;display:flex;flex-direction:column;justify-content:space-between;gap:12px;
}
.sub-card h3{font-size:18px;color:#e7f0f8;display:flex;align-items:center;gap:10px;font-weight:700}
.sub-card h3 i{width:38px;height:38px;display:inline-flex;align-items:center;justify-content:center;background:rgba(245,181,68,.14);border:1px solid rgba(245,181,68,.24);color:var(--gold);border-radius:10px;font-size:17px}
.sub-card p{color:var(--weak);font-size:14px;line-height:1.8}
.anchor-line{margin-top:6px;font-size:14px;font-weight:600;color:var(--cyan);transition:.2s}
.anchor-line:hover{color:#fff;padding-left:4px}

.process-block{border-radius:var(--radius-lg);padding:0;background:transparent;margin-top:8px}
.process-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:0;position:relative}
.step-card{
  background:var(--bg-panel);border:1px solid var(--line-soft);padding:28px 20px 22px;position:relative;
  border-radius:var(--radius-lg);backdrop-filter:blur(8px);transition:.25s ease;
}
.step-card:hover{border-color:rgba(35,211,238,.25);background:rgba(0,167,225,.08);transform:translateY(-6px)}
.step-num{
  width:42px;height:42px;border-radius:10px;display:flex;align-items:center;justify-content:center;
  font-family:var(--font-num);font-size:20px;font-weight:800;color:#001220;
  background:linear-gradient(135deg,#29d1ee,#08a0d8);box-shadow:0 7px 22px rgba(0,167,225,.23);margin-bottom:16px;
}
.step-card h4{color:#e9f1f8;font-size:17px;margin-bottom:8px;font-weight:700}
.step-card p{color:var(--weak);font-size:14px;line-height:1.75}
.step-line{
  position:absolute;top:42px;left:calc(50% + 56px);width:calc(100% - 70px);height:2px;
  background:linear-gradient(90deg,rgba(35,211,238,.35),rgba(35,211,238,.1));z-index:0;
}
@media(min-width:1200px){
  .step-card:last-child .step-line{display:none}
}

.two-col-grid{display:grid;grid-template-columns:1fr 1fr;gap:24px;align-items:start}
.check-card{background:rgba(255,255,255,.04);border:1px solid rgba(255,255,255,.06);border-radius:var(--radius-lg);padding:28px;height:100%}
.check-card h3{color:#eaf2f8;font-size:20px;margin-bottom:16px;display:flex;gap:10px;align-items:center}
.check-card h3 i{color:var(--gold)}
.check-list{display:flex;flex-direction:column;gap:12px}
.check-list li{
  display:flex;gap:11px;padding:13px 14px;border-radius:12px;background:rgba(255,255,255,.035);
  border-left:2px solid var(--brand);transition:.2s;align-items:flex-start;font-size:14px;
}
.check-list li:nth-child(2){border-left-color:var(--cyan)}
.check-list li:nth-child(3){border-left-color:#7a7aff}
.check-list li:hover{background:rgba(255,255,255,.06)}
.check-list li i{margin-top:5px;color:var(--cyan);width:16px}

.help-table-wrap{overflow-x:auto;border-radius:var(--radius-md);border:1px solid var(--line-soft);background:rgba(255,255,255,.035)}
.help-table{width:100%;border-collapse:collapse;min-width:680px}
.help-table th{background:rgba(2,13,24,.7);color:#d9e4ef;font-size:15px;font-weight:700;text-align:left;padding:15px 18px;border-bottom:1px solid var(--line)}
.help-table td{padding:15px 18px;font-size:14px;border-bottom:1px solid rgba(255,255,255,.05);color:var(--text)}
.help-table tr:last-child td{border-bottom:none}
.help-table td:first-child{color:#d9ebf7;font-weight:600}
.help-table td.dim-chk{color:#93b6c8}
.help-table .tb-yes{color:#e3eeF5}
.help-table tr:hover td{background:rgba(255,255,255,.03)}
.table-note{margin-top:12px;font-size:13px;color:var(--weak)}

.tips-band{
  border-radius:var(--radius-lg);padding:28px;display:flex;gap:22px;align-items:center;flex-wrap:wrap;
  background:linear-gradient(120deg,rgba(245,181,68,.09),rgba(0,167,225,.03) 55%,rgba(255,255,255,.04));
  border:1px solid rgba(245,181,68,.2);
}
.tips-icon{
  flex-shrink:0;width:56px;height:56px;display:flex;align-items:center;justify-content:center;border-radius:16px;
  background:rgba(245,181,68,.15);border:1px solid rgba(245,181,68,.3);color:var(--gold);font-size:24px;
}
.tips-band h3{color:#f0dfc2;font-size:18px;font-weight:700;margin-bottom:4px}
.tips-band p{color:#c9b794;font-size:14px;max-width:720px}
.tips-btn{margin-left:auto}

.acc-wrap{display:grid;grid-template-columns:1fr 1fr;gap:20px;align-items:start}
.acc-card{border-radius:var(--radius-lg);background:var(--bg-panel);border:1px solid var(--line-soft);overflow:hidden;transition:.2s}
.acc-item{border-bottom:1px solid rgba(255,255,255,.06)}
.acc-item:last-child{border-bottom:none}
.acc-title{
  width:100%;text-align:left;display:flex;gap:12px;align-items:center;color:#dbe8f2;font-size:15px;font-weight:600;
  padding:16px 18px;background:transparent;border:none;cursor:pointer;transition:.2s;line-height:1.5;min-height:52px;
}
.acc-item .acc-title:hover,.acc-item.open .acc-title{background:rgba(0,167,225,.08)}
.acc-item .q-icon{
  flex-shrink:0;width:24px;height:24px;border-radius:7px;background:rgba(0,167,225,.14);color:var(--cyan);
  display:inline-flex;align-items:center;justify-content:center;font-size:12px;
}
.acc-item.open .q-icon{background:var(--gold);color:#111}
.acc-title span{flex:1}
.acc-arrow{margin-left:auto;color:var(--weak);font-size:13px;transition:transform .25s ease}
.acc-item.open .acc-arrow{transform:rotate(180deg);color:var(--gold)}
.acc-body{display:none;padding:2px 20px 20px 54px;color:#a9bbc9;font-size:14px;line-height:1.95;background:rgba(0,0,0,.14)}
.acc-item.open .acc-body{display:block}
.acc-body p:not(:last-child){margin-bottom:10px}
.acc-body .acc-tag{color:var(--gold)}

.support-card{
  border-radius:var(--radius-lg);overflow:hidden;border:1px solid rgba(255,255,255,.09);
  background:linear-gradient(135deg,rgba(0,167,225,.11),rgba(255,255,255,.04)),var(--bg-base);
  display:grid;grid-template-columns:1fr 1.2fr;  
}
.support-info{padding:36px 32px;background:rgba(6,14,24,.82)}
.support-info h3{color:#eaf3f9;font-size:22px;margin-bottom:10px;font-weight:800}
.support-list{display:flex;flex-direction:column;gap:14px;margin-top:22px}
.support-list li{display:flex;align-items:flex-start;gap:14px;color:#b6c7d4;font-size:14px}
.support-list li i{width:34px;height:34px;flex-shrink:0;display:flex;align-items:center;justify-content:center;background:rgba(35,211,238,.12);color:var(--cyan);border-radius:10px;font-size:14px}
.support-list li b{display:block;color:#dce9f3;font-weight:700;font-size:15px}
.support-list li span{font-size:14px}
.support-visual{padding:34px;background:rgba(255,255,255,.02)}
.support-clock-card{background:var(--bg-panel);border:1px dashed rgba(255,255,255,.14);padding:22px;border-radius:16px;display:flex;align-items:center;justify-content:space-between;gap:18px;flex-wrap:wrap}
.clock-title{display:flex;gap:12px;align-items:center}
.clock-title .clock-ico{width:44px;height:44px;border-radius:12px;background:rgba(245,181,68,.13);display:flex;align-items:center;justify-content:center;color:var(--gold);font-size:18px}
.clock-title b{font-size:16px;color:#e8ecf0;display:block}
.clock-title small{color:var(--weak);font-size:13px}
.clock-num{font-family:var(--font-num);font-size:28px;font-weight:800;color:var(--gold);white-space:nowrap}
.contact-mini{margin-top:16px;font-size:14px;color:var(--weak)}

.cta-bar{
  background:linear-gradient(120deg,rgba(13,139,200,.2),rgba(245,181,68,.12));
  border:1px solid rgba(0,167,225,.28);border-radius:20px;
  padding:34px 38px;display:flex;align-items:center;gap:26px;justify-content:space-between;flex-wrap:wrap;
}
.cta-text h3{font-size:23px;font-weight:800;color:#f4f9ff;margin-bottom:6px;line-height:1.4}
.cta-text p{color:#aabac9;font-size:15px;max-width:700px}
.cta-btns{display:flex;gap:15px;flex-wrap:wrap}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;border-radius:12px;
  padding:11px 27px;font-size:15px;font-weight:700;transition:.25s ease;cursor:pointer;
}
.btn-sm{padding:8px 18px;font-size:14px;border-radius:10px}
.btn-primary{
  background:var(--grad-brand);color:#04121d !important;border:1px solid rgba(120,224,255,.5);
  box-shadow:0 10px 28px rgba(0,167,225,.25);
}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 0 28px rgba(35,211,238,.45);color:#012232 !important}
.btn-line{
  background:rgba(255,255,255,.05);color:#dce8f0;border:1px solid rgba(255,255,255,.16);backdrop-filter:blur(6px)
}
.btn-line:hover{border-color:var(--gold);color:var(--gold);transform:translateY(-2px)}
.btn-gold{
  background:linear-gradient(135deg,#e5a73a,#f7c15d);color:#1a1202 !important;border:1px solid #f9d685;
  box-shadow:0 10px 25px rgba(245,181,68,.13)
}
.btn-gold:hover{box-shadow:0 0 32px rgba(245,181,68,.35);transform:translateY(-2px)}

.cta-row{margin-bottom:90px}

.site-footer{border-top:1px solid rgba(255,255,255,.08);margin-top:0;background:rgba(4,10,18,.6)}
.footer-main{padding:50px 0 30px}
.footer-grid{display:grid;grid-template-columns:1.5fr .8fr 1fr;gap:44px}
.footer-brand .brand{display:inline-block;color:#eaf2f9;font-size:19px;font-weight:800;margin-bottom:14px}
.footer-brand .brand span{display:block;font-size:14px;color:var(--cyan);margin-top:2px}
.footer-brand p{font-size:14px;color:var(--weak);max-width:520px;line-height:1.9}
.footer-title{font-size:15px;color:#d8e4ef;font-weight:700;margin-bottom:15px}
.footer-col{display:flex;flex-direction:column;gap:8px}
.footer-col a{color:#8fa5b5;font-size:14px}
.footer-col a:hover{color:#cfefff;text-decoration:underline}
.footer-col .dim{color:#788b9b;font-size:14px}
.footer-col .dim a{color:var(--cyan)}
.footer-bottom{border-top:1px solid rgba(255,255,255,.05);padding:16px 0}
.footer-bottom .container{display:flex;align-items:center;justify-content:space-between;gap:15px;flex-wrap:wrap}
.copy-text, .icp-text{color:#5e7280;font-size:13px}

@media (max-width:1024px){
  .side-shell{display:none}
  .main-shell{margin-left:0;width:100%}
  .mobile-bar{
    display:flex;height:58px;align-items:center;justify-content:space-between;
    padding:0 16px;background:rgba(7,14,23,.92);backdrop-filter:blur(16px);
    border-bottom:1px solid rgba(255,255,255,.06);position:sticky;top:0;z-index:100;
  }
  .mobile-logo{color:#fff;font-size:16px;font-weight:800}
  .mobile-logo span{
    display:inline-block;color:var(--cyan);font-size:15px;
  }
  .hm-btn{background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.12);width:38px;height:38px;border-radius:9px;color:#dce7f0;font-size:17px;cursor:pointer}
  .main-header{display:none}
  .hero-title{font-size:32px}
  .hero-grid{flex-direction:column;align-items:flex-start}
  .hero-side{text-align:left}
  .guide-layout{grid-template-columns:1fr 1fr}
  .guide-main{grid-column:1/-1}
  .two-col-grid,.acc-wrap{grid-template-columns:1fr}
  .process-grid{grid-template-columns:1fr 1fr;gap:12px}
  .step-line{display:none}
  .footer-grid{grid-template-columns:1fr 1fr}
  .support-card{grid-template-columns:1fr}
  .section{padding:64px 0}
  .container{padding-left:20px;padding-right:20px}
  .cta-bar{padding:27px 22px}
}
@media (max-width:640px){
  body{background:#0b131e}
  .mobile-bar{display:flex}
  .hero-mini{padding:44px 0 46px}
  .hero-title{font-size:27px}
  .container{padding-left:16px;padding-right:16px}
  .process-grid{grid-template-columns:1fr}
  .guide-layout{grid-template-columns:1fr}
  .sub-card{grid-column:auto}
  .footer-grid{grid-template-columns:1fr;gap:28px}
  .hero-tag{font-size:13px;padding:6px 13px}
  .section{padding:50px 0}
  .cta-btns .btn{width:100%;margin-bottom:4px}
  .tips-btn{margin-left:0;width:100%}
  .acc-body{padding-left:18px;padding-right:10px}
}

/* roulang page: category4 */
:root{
    --bg-deep:#071019;
    --bg-main:#0b1520;
    --bg-glow:#0e1b2a;
    --cyan:#00a7e1;
    --blue:#1b6db8;
    --amber:#f5b544;
    --text-title:#f4f8fc;
    --text-body:#c7d1dc;
    --text-dim:#8da0b0;
    --border-soft:rgba(255,255,255,.1);
    --card-bg:rgba(255,255,255,.055);
    --card-strong:rgba(255,255,255,.085);
    --radius-lg:18px;
    --radius-md:14px;
    --shadow-soft:0 12px 40px rgba(0,0,0,.35);
    --shadow-glow:0 12px 40px rgba(0,167,225,.22);
    --space-lg:90px;
    --space-md:56px;
}
*,
*::before,
*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{
    margin:0;
    min-height:100vh;
    font-family:"Noto Sans SC","PingFang SC","Microsoft YaHei",system-ui,-apple-system,sans-serif;
    font-size:16px;
    line-height:1.8;
    color:var(--text-body);
    background:
        radial-gradient(circle at 8% 18%,rgba(27,109,184,.18),transparent 26%),
        radial-gradient(circle at 80% 8%,rgba(0,167,225,.08),transparent 22%),
        linear-gradient(160deg,#0c1623 0%,#08111d 42%,#070d16 100%);
    background-attachment:fixed;
    letter-spacing:.01em;
}
ul,ol{list-style:none}
img{max-width:100%;display:block}
button{font-family:inherit;cursor:pointer}
a{color:inherit;text-decoration:none}
p{line-height:1.9}
.site-shell{position:relative;min-height:100vh}

.container-x{
    width:100%;
    max-width:1340px;
    margin:0 auto;
    padding-left:clamp(20px,4vw,52px);
    padding-right:clamp(20px,4vw,52px);
}

.block{padding:80px 0;position:relative}
.block-light{
    background:rgba(255,255,255,.02);
    border-top:1px solid rgba(255,255,255,.06);
    border-bottom:1px solid rgba(255,255,255,.06);
}
.section-head{max-width:780px;margin-bottom:38px}
.section-head h2{
    color:var(--text-title);
    font-size:clamp(28px,3.4vw,38px);
    font-weight:900;
    line-height:1.3;
    letter-spacing:-.01em;
}
.section-head p{margin-top:14px;color:var(--text-dim);font-size:16px}
.eyebrow{
    display:inline-flex;
    align-items:center;
    gap:8px;
    color:var(--amber);
    font-size:13px;
    font-weight:700;
    letter-spacing:.08em;
    text-transform:uppercase;
    margin-bottom:10px;
}
.eyebrow i{color:var(--cyan);font-size:14px}

.brand{display:inline-flex;align-items:baseline}
.brand-main{
    font-size:18px;
    font-weight:900;
    color:#f5f9fd;
    white-space:nowrap;
}
.brand-main span{
    color:var(--cyan);
    font-weight:700;
}

.btn{
    display:inline-flex;
    align-items:center;
    justify-content:center;
    gap:9px;
    border:0;
    border-radius:12px;
    padding:12px 22px;
    font-weight:700;
    font-size:15px;
    line-height:1.3;
    transition:all .25s ease;
    box-shadow:0 4px 14px rgba(0,0,0,.12);
}
.btn i{font-size:14px;transition:transform .2s ease}
.btn:hover i{transform:translateX(3px)}
.btn-primary{
    color:#fff;
    background:linear-gradient(135deg,#00a7e1 0%,#1b6db8 100%);
    box-shadow:0 10px 28px rgba(0,167,225,.2);
}
.btn-primary:hover{
    box-shadow:0 0 0 1px rgba(0,167,225,.3),0 12px 34px rgba(245,181,68,.18);
    transform:translateY(-2px);
}
.btn-primary:active{transform:translateY(0);box-shadow:none}
.btn-ghost{
    color:var(--text-title);
    background:rgba(255,255,255,.06);
    border:1px solid var(--border-soft);
    backdrop-filter:blur(6px);
}
.btn-ghost:hover{
    border-color:rgba(0,167,225,.55);
    background:rgba(0,167,225,.1);
    color:#fff;
    transform:translateY(-2px);
}
.btn-amber{
    color:#111;
    background:linear-gradient(135deg,#f9c96a,#e8a33d);
    box-shadow:0 8px 24px rgba(245,181,68,.18);
}
.btn-amber:hover{
    box-shadow:0 12px 34px rgba(245,181,68,.32);
    transform:translateY(-2px);
}

.glass{
    background:var(--card-bg);
    border:1px solid var(--border-soft);
    border-radius:var(--radius-lg);
    backdrop-filter:blur(10px);
    -webkit-backdrop-filter:blur(10px);
}
.glass-strong{
    background:var(--card-strong);
    border:1px solid rgba(255,255,255,.14);
    border-radius:var(--radius-lg);
    backdrop-filter:blur(14px);
    -webkit-backdrop-filter:blur(14px);
}

/* ===== side panel ===== */
.side-panel{
    position:fixed;
    top:0;
    left:0;
    bottom:0;
    width:286px;
    z-index:1000;
    display:flex;
    flex-direction:column;
    background:rgba(6,13,22,.92);
    border-right:1px solid rgba(255,255,255,.08);
    backdrop-filter:blur(18px);
    -webkit-backdrop-filter:blur(18px);
    box-shadow:12px 0 36px rgba(0,0,0,.28);
}
.panel-head{
    height:86px;
    display:flex;
    align-items:center;
    justify-content:space-between;
    padding:0 27px;
    border-bottom:1px solid rgba(255,255,255,.07);
    background:linear-gradient(180deg,rgba(0,167,225,.09),transparent);
}
.panel-head .brand-main{font-size:20px}
.side-close{display:none}
.side-nav{
    flex:1;
    padding:26px 18px;
    display:flex;
    flex-direction:column;
    gap:6px;
}
.side-link{
    position:relative;
    display:flex;
    align-items:center;
    gap:14px;
    padding:12px 14px;
    border-radius:12px;
    color:#b6c4d3;
    font-weight:500;
    font-size:15px;
    transition:background .2s ease,color .2s ease,transform .2s ease;
    overflow:hidden;
}
.side-link i{
    width:22px;
    text-align:center;
    color:#7990a5;
    transition:color .2s ease;
    font-size:16px;
}
.side-link span:not(.nav-num){flex:1}
.nav-num{
    font-size:11px;
    font-family:"Rajdhani","Noto Sans SC",sans-serif;
    color:#5f7288;
    font-weight:700;
    transition:color .2s ease;
}
.side-link::before{
    content:"";
    position:absolute;
    left:0;
    top:50%;
    transform:translateY(-50%) scaleY(.2);
    width:3px;
    height:20px;
    border-radius:0 4px 4px 0;
    background:linear-gradient(180deg,var(--cyan),var(--amber));
    box-shadow:0 0 12px rgba(0,167,225,.6);
    opacity:0;
    transition:.3s ease;
}
.side-link:hover{
    background:rgba(255,255,255,.06);
    color:#fff;
    transform:translateX(3px);
}
.side-link:hover i{color:var(--cyan)}
.side-link.active{
    color:#fff;
    background:linear-gradient(90deg,rgba(0,167,225,.15),rgba(255,255,255,.05));
}
.side-link.active i{color:var(--cyan)}
.side-link.active::before{opacity:1;transform:translateY(-50%) scaleY(1)}
.side-link.active .nav-num{color:var(--amber)}

.side-status{
    margin:16px;
    padding:16px 14px;
    border-radius:14px;
    background:rgba(0,167,225,.06);
    border:1px solid rgba(0,167,225,.18);
    display:flex;
    align-items:center;
    gap:12px;
}
.status-dot{
    width:8px;
    height:8px;
    border-radius:50%;
    background:#38e39a;
    box-shadow:0 0 0 rgba(56,227,154,.4);
    animation:pulse 1.8s infinite;
}
@keyframes pulse{
    0%{box-shadow:0 0 0 rgba(56,227,154,.4)}
    70%{box-shadow:0 0 0 8px rgba(56,227,154,.02)}
    100%{box-shadow:0 0 0 rgba(56,227,154,.4)}
}
.side-status small{display:block;font-size:12px;color:var(--text-dim);line-height:1.5}
.side-status strong{display:block;font-size:14px;color:#e9f2f9;font-weight:700}

/* ===== main shell ===== */
.site-main{
    margin-left:286px;
    min-height:100vh;
    display:flex;
    flex-direction:column;
}
.main-topbar{
    position:sticky;
    top:0;
    z-index:600;
    min-height:70px;
    display:flex;
    align-items:center;
    justify-content:space-between;
    padding:0 clamp(20px,4vw,52px);
    background:rgba(8,16,25,.74);
    backdrop-filter:blur(16px);
    -webkit-backdrop-filter:blur(16px);
    border-bottom:1px solid rgba(255,255,255,.07);
}
.topbar-left{
    display:flex;
    align-items:center;
    gap:12px;
    font-size:14px;
}
.topbar-dot{color:#38e39a;font-size:8px}
.topbar-label{
    color:var(--text-title);
    font-weight:600;
    background:rgba(255,255,255,.07);
    padding:5px 12px;
    border-radius:50px;
    border:1px solid var(--border-soft);
}
.topbar-cta{
    display:flex;
    align-items:center;
    gap:18px;
}
.topbar-status{
    font-size:13px;
    color:var(--text-dim);
}
.topbar-status strong{color:#a9e7c9}

.mobile-top{
    display:none;
    position:sticky;
    top:0;
    z-index:1100;
    height:66px;
    padding:0 18px;
    align-items:center;
    justify-content:space-between;
    background:rgba(6,13,22,.96);
    border-bottom:1px solid rgba(255,255,255,.08);
    backdrop-filter:blur(14px);
}
.mobile-top .brand-main{font-size:17px}
.burger-btn{
    width:44px;
    height:44px;
    border:1px solid var(--border-soft);
    border-radius:12px;
    background:rgba(255,255,255,.05);
    color:var(--text-title);
    font-size:18px;
    transition:.2s ease;
}
.burger-btn:hover{border-color:var(--cyan)}
.drawer-mask{
    display:none;
    position:fixed;
    inset:0;
    z-index:999;
    background:rgba(3,7,12,.7);
    opacity:0;
    transition:opacity .25s ease;
}
body.drawer-open{
    overflow:hidden;
}
body.drawer-open .drawer-mask{
    display:block;
    opacity:1;
}

/* ===== page hero ===== */
.page-hero{
    position:relative;
    overflow:hidden;
    min-height:380px;
    display:flex;
    align-items:center;
    padding:54px 0;
    border-bottom:1px solid rgba(255,255,255,.07);
    background:
        linear-gradient(120deg,rgba(5,12,22,.88) 0%,rgba(10,25,40,.85) 50%,rgba(4,10,18,.72) 100%),
        url("/assets/images/backpic/back-2.png") center 15% / cover;
}
.page-hero::after{
    content:"";
    position:absolute;
    inset:auto 0 0 0;
    height:3px;
    background:linear-gradient(90deg,var(--cyan) 0%,rgba(0,167,225,0) 30%,rgba(245,181,68,0) 70%,var(--amber) 100%);
    opacity:.8;
}
.hero-grid{
    display:grid;
    grid-template-columns:minmax(0,1fr) 360px;
    gap:52px;
    align-items:center;
}
.hero-pretitle{
    display:flex;
    align-items:center;
    gap:10px;
    flex-wrap:wrap;
    margin-bottom:14px;
}
.hero-chip{
    font-size:13px;
    font-weight:600;
    color:var(--amber);
    background:rgba(245,181,68,.1);
    border:1px solid rgba(245,181,68,.25);
    border-radius:50px;
    padding:3px 12px;
}
.hero-chip i{margin-right:6px}
.hero-title{
    color:var(--text-title);
    font-size:clamp(34px,4.6vw,50px);
    line-height:1.22;
    font-weight:900;
    letter-spacing:-.02em;
}
.hero-title span{
    display:block;
    color:transparent;
    background:linear-gradient(100deg,#f5f9fd 0%,#6fd5f2 45%,var(--cyan) 100%);
    -webkit-background-clip:text;
    background-clip:text;
    margin-top:4px;
}
.hero-desc{
    margin:22px 0 0;
    max-width:660px;
    color:#d4e0eb;
    font-size:16px;
}
.hero-desc b{color:#fff;font-weight:700}
.hero-actions{
    display:flex;
    gap:14px;
    flex-wrap:wrap;
    margin-top:30px;
}
.hero-visual{
    display:flex;
    flex-direction:column;
    gap:14px;
}
.visit-card{
    padding:24px 22px;
    border-radius:20px;
    background:rgba(255,255,255,.075);
    border:1px solid rgba(255,255,255,.16);
    backdrop-filter:blur(14px);
    box-shadow:0 26px 70px rgba(0,0,0,.34);
}
.visit-card-head{
    display:flex;
    align-items:center;
    justify-content:space-between;
    padding-bottom:14px;
    border-bottom:1px solid rgba(255,255,255,.1);
}
.visit-card-head strong{color:#fff;font-size:17px}
.visit-card-head i{
    width:34px;height:34px;
    display:grid;
    place-items:center;
    border-radius:10px;
    color:#111;
    background:linear-gradient(135deg,#ffd88a,#e8a33d);
}
.visit-card-list{
    margin-top:12px;
    display:flex;
    flex-direction:column;
    gap:12px;
}
.visit-item{
    display:flex;
    gap:11px;
    align-items:flex-start;
    font-size:13.5px;
    color:#c7d6e2;
    line-height:1.6;
}
.visit-item i{
    margin-top:5px;
    color:var(--cyan);
    font-size:12px;
}
.hero-support-tip{
    padding:13px 15px;
    font-size:13px;
    color:var(--text-dim);
    text-align:center;
    background:rgba(255,255,255,.05);
    border:1px solid rgba(255,255,255,.1);
    border-radius:14px;
}
.hero-support-tip i{color:var(--amber);margin-right:7px}

/* ===== general panels and features ===== */
.guide-layout{
    display:grid;
    grid-template-columns:minmax(0,1.55fr) minmax(280px,.75fr);
    gap:26px;
    align-items:start;
}
.panel-large{
    padding:clamp(24px,4vw,42px);
}
.panel-large h2{
    font-size:clamp(23px,2.6vw,30px);
    color:var(--text-title);
    font-weight:700;
    line-height:1.4;
    margin:6px 0 16px;
}
.panel-large h2 span{color:var(--cyan)}
.list-text{
    display:flex;
    flex-direction:column;
    gap:10px;
    margin-top:18px;
}
.list-text li{
    display:flex;
    align-items:flex-start;
    gap:10px;
    color:var(--text-body);
    font-size:15px;
}
.list-text li i{color:var(--amber);margin-top:6px;font-size:13px}
.guide-rail{
    position:sticky;
    top:100px;
    padding:26px 22px;
}
.guide-rail h3{
    color:#fff;
    font-size:18px;
    margin-bottom:14px;
    display:flex;
    align-items:center;
    gap:9px;
}
.guide-rail h3 i{color:var(--amber);font-size:16px}
.guide-links{
    display:flex;
    flex-direction:column;
}
.guide-links a{
    padding:11px 6px;
    display:flex;
    align-items:center;
    gap:9px;
    font-size:14px;
    color:#acbdc9;
    border-bottom:1px dashed rgba(255,255,255,.12);
    transition:.2s ease;
}
.guide-links a:last-child{border-bottom:0}
.guide-links a small{
    font-family:"Rajdhani",sans-serif;
    color:var(--amber);
    font-weight:700;
    font-size:12px;
}
.guide-links a:hover{color:#fff;padding-left:3px}
.guide-links a:hover i{color:var(--cyan)}

.tick-list{
    margin-top:12px;
    display:grid;
    grid-template-columns:1fr 1fr;
    gap:12px 16px;
}
.tick-list li{
    display:flex;
    gap:9px;
    align-items:flex-start;
    color:#b9c8d5;
}
.tick-list li i{color:var(--cyan);margin-top:5px;font-size:14px}

/* feature grid */
.feature-grid{
    display:grid;
    grid-template-columns:repeat(12,1fr);
    gap:24px;
}
.feature-card{
    position:relative;
    border-radius:var(--radius-lg);
    padding:clamp(22px,3vw,30px);
    overflow:hidden;
    background:rgba(255,255,255,.045);
    border:1px solid rgba(255,255,255,.09);
    backdrop-filter:blur(12px);
    transition:border-color .25s ease,background .25s ease,transform .25s ease;
}
.feature-card:hover{
    background:rgba(255,255,255,.075);
    border-color:rgba(0,167,225,.45);
    transform:translateY(-4px);
}
.feature-card::before{
    content:"";
    position:absolute;
    top:-60px;
    right:-60px;
    width:140px;
    height:140px;
    border-radius:50%;
    background:radial-gradient(circle,rgba(0,167,225,.16),transparent 72%);
    pointer-events:none;
}
.fc-hotline{
    grid-column:1/-1;
    display:grid;
    grid-template-columns:1.1fr .9fr;
    gap:24px;
    align-items:center;
}
.fc-icon{
    width:52px;
    height:52px;
    border-radius:14px;
    display:grid;
    place-items:center;
    font-size:21px;
    color:#fff;
    background:linear-gradient(135deg,rgba(0,167,225,.3),rgba(27,109,184,.16));
    border:1px solid rgba(0,167,225,.3);
    margin-bottom:18px;
}
.fc-hotline .fc-icon{
    width:64px;
    height:64px;
    border-radius:18px;
    font-size:26px;
    margin-bottom:0;
}
.feature-card h3{
    color:#eef6fc;
    font-size:21px;
    font-weight:700;
    margin-bottom:12px;
    line-height:1.4;
}
.feature-card h3 span{
    display:block;
    color:var(--amber);
    font-size:13px;
    font-weight:700;
    margin-top:6px;
    letter-spacing:.05em;
}
.feature-card p{color:#b7c7d4;font-size:15px}
.fc-list{
    margin-top:16px;
    display:flex;
    flex-direction:column;
    gap:9px;
}
.fc-list li{
    display:flex;
    align-items:flex-start;
    gap:8px;
    font-size:14.5px;
    color:#bcccd9;
}
.fc-list li i{color:var(--cyan);margin-top:6px}
.fc-card-sub{
    grid-column:span 6;
}
@media screen and (min-width:741px) and (max-width:1180px){
    .fc-card-sub{grid-column:span 12}
}
@media(min-width:1181px){
    .fc-hotline{
        grid-column:span 8;
    }
    .fc-side{
        grid-column:span 4;
    }
}
@media(max-width:740px){
    .fc-card-sub{grid-column:span 12}
}

.feature-card .edge-line{
    position:absolute;
    left:0;right:0;bottom:0;
    height:3px;
    background:linear-gradient(90deg,var(--cyan),transparent 30%,transparent 75%,var(--amber));
    opacity:.75;
}

/* ===== process ===== */
.process-steps{
    display:grid;
    grid-template-columns:repeat(4,1fr);
    gap:22px;
    margin-top:36px;
    position:relative;
}
.process-steps::before{
    content:"";
    position:absolute;
    top:32px;
    left:4%;
    right:4%;
    height:1px;
    background:linear-gradient(90deg,var(--cyan),rgba(255,255,255,.14),rgba(245,181,68,.2));
    pointer-events:none;
}
.process-step{
    position:relative;
    padding:24px 17px;
    text-align:left;
    background:rgba(255,255,255,.045);
    border:1px solid rgba(255,255,255,.09);
    border-radius:var(--radius-lg);
    transition:.25s ease;
}
.process-step:hover{
    border-color:rgba(0,167,225,.5);
    transform:translateY(-4px);
    background:rgba(0,167,225,.08);
}
.step-num{
    width:52px;
    height:52px;
    border-radius:18px;
    display:grid;
    place-items:center;
    color:var(--amber);
    background:linear-gradient(135deg,rgba(245,181,68,.16),rgba(245,181,68,.03));
    border:1px solid rgba(245,181,68,.26);
    font-family:"Rajdhani",sans-serif;
    font-size:22px;
    font-weight:700;
    margin-bottom:14px;
}
.process-step h3{
    color:#f0f5f9;
    font-size:17px;
    font-weight:700;
    margin-bottom:8px;
}
.process-step p{font-size:14px;color:var(--text-dim);line-height:1.75}

.connect-tip{
    margin-top:22px;
    padding:14px 20px;
    border-radius:14px;
    background:rgba(245,181,68,.08);
    border-left:3px solid var(--amber);
    color:#d9c2a1;
    font-size:14px;
}
.connect-tip strong{color:var(--amber)}

/* ===== scenes ===== */
.scene-row{
    display:grid;
    grid-template-columns:repeat(12,1fr);
    align-items:center;
    gap:30px;
    margin-bottom:60px;
}
.scene-row:last-child{margin-bottom:0}
.scene-col-img{grid-column:span 6}
.scene-col-text{grid-column:span 6}
.scene-row.reverse .scene-col-img{order:2}
.scene-row.reverse .scene-col-text{order:1}
.scene-img{
    position:relative;
    overflow:hidden;
    border-radius:22px;
    border:1px solid rgba(255,255,255,.13);
    box-shadow:0 18px 52px rgba(0,0,0,.42);
}
.scene-img img{
    width:100%;
    height:300px;
    object-fit:cover;
    transition:transform .4s ease;
}
.scene-img:hover img{transform:scale(1.04)}
.scene-img::after{
    content:"";
    position:absolute;
    inset:0;
    background:linear-gradient(180deg,rgba(0,0,0,0) 35%,rgba(3,8,14,.62) 100%);
}
.scene-tag{
    position:absolute;
    left:18px;
    top:18px;
    z-index:2;
    background:rgba(6,14,22,.72);
    color:#fff;
    font-size:12px;
    border-radius:50px;
    padding:5px 13px;
    border:1px solid rgba(255,255,255,.18);
    backdrop-filter:blur(6px);
}
.scene-copy h3{
    color:#fff;
    font-size:24px;
    font-weight:700;
    line-height:1.4;
    margin-bottom:13px;
}
.scene-copy h3 i{color:var(--amber);margin-right:7px}
.scene-copy p{color:#b6c6d3;margin-bottom:12px}
.scene-note{
    padding:13px 15px;
    background:rgba(255,255,255,.05);
    border-radius:13px;
    color:#d3dee7;
    font-size:14px;
    border:1px dashed rgba(255,255,255,.17);
    margin-top:13px;
}
.scene-note i{color:var(--cyan);margin-right:8px}
@media(max-width:1024px){
    .scene-row,.scene-row.reverse{
        gap:16px;
        margin-bottom:40px;
    }
    .scene-col-img,.scene-row.reverse .scene-col-img{order:1;grid-column:span 12}
    .scene-col-text,.scene-row.reverse .scene-col-text{order:2;grid-column:span 12}
    .scene-img img{height:240px}
}

/* ===== faq ===== */
.faq-layout{
    display:grid;
    grid-template-columns:.8fr 1.2fr;
    gap:40px;
    align-items:start;
}
.faq-intro-card{
    position:sticky;
    top:96px;
    padding:28px 26px;
}
.faq-intro-card h2{
    font-size:clamp(26px,2.6vw,32px);
    color:#fff;
    line-height:1.35;
    font-weight:800;
    margin-bottom:14px;
}
.faq-intro-card p{color:var(--text-dim);font-size:15px}
.faq-contact{
    margin-top:20px;
    border-top:1px solid rgba(255,255,255,.1);
    padding-top:18px;
}
.faq-contact span{
    display:flex;
    align-items:center;
    gap:10px;
    font-size:14px;
    color:#b9cada;
    margin-bottom:8px;
}
.faq-contact i{
    width:28px;
    height:28px;
    border-radius:8px;
    background:rgba(0,167,225,.14);
    color:var(--cyan);
    display:grid;
    place-items:center;
    font-size:12px;
}
.faq-list{
    display:flex;
    flex-direction:column;
    gap:12px;
}
.faq-item{
    border:1px solid var(--border-soft);
    background:rgba(255,255,255,.045);
    border-radius:16px;
    overflow:hidden;
    transition:border-color .25s,background .25s;
}
.faq-item.open{
    border-color:rgba(0,167,225,.5);
    background:rgba(0,167,225,.07);
}
.faq-q{
    width:100%;
    min-height:58px;
    padding:15px 46px 15px 17px;
    background:transparent;
    border:0;
    text-align:left;
    color:var(--text-title);
    font-size:15.5px;
    font-weight:600;
    line-height:1.5;
    display:flex;
    align-items:center;
    gap:10px;
    position:relative;
}
.faq-q::before{
    content:"";
    width:5px;
    height:5px;
    border-radius:2px;
    background:var(--cyan);
    flex:0 0 auto;
}
.faq-q .faq-tag{
    margin-left:auto;
    padding:0 10px;
    border-radius:50px;
    background:rgba(255,255,255,.08);
    color:var(--text-dim);
    font-size:11px;
    font-weight:500;
    white-space:nowrap;
}
.faq-arrow{
    position:absolute;
    right:17px;
    top:50%;
    transform:translateY(-50%);
    color:var(--amber);
    font-size:12px;
    transition:transform .25s ease;
}
.faq-item.open .faq-arrow{transform:translateY(-50%) rotate(180deg)}
.faq-a{
    display:none;
    padding:2px 20px 18px 31px;
    color:#c2d0dc;
    font-size:14px;
    line-height:1.9;
    border-top:0;
}
.faq-item.open .faq-a{display:block}

/* ===== CTA ===== */
.cta-band{
    position:relative;
    overflow:hidden;
    padding:clamp(30px,6vw,56px);
    border-radius:24px;
    background:
        linear-gradient(120deg,rgba(5,13,20,.92),rgba(11,32,48,.85)),
        url("/assets/images/backpic/back-1.png") center / cover;
    display:flex;
    align-items:center;
    justify-content:space-between;
    gap:28px;
    flex-wrap:wrap;
    border:1px solid rgba(255,255,255,.12);
    box-shadow:var(--shadow-soft);
}
.cta-band::before{
    content:"";
    position:absolute;
    inset:auto 0 0 0;
    height:3px;
    background:linear-gradient(90deg,var(--cyan),rgba(0,167,225,0) 36%,rgba(245,181,68,0) 64%,var(--amber));
}
.cta-copy h2{
    color:#fff;
    font-size:clamp(24px,2.8vw,34px);
    font-weight:800;
    line-height:1.35;
}
.cta-copy h2 span{color:var(--amber)}
.cta-copy p{color:var(--text-body);margin-top:9px;max-width:560px}
.cta-actions{display:flex;gap:13px;flex-wrap:wrap}

/* ===== footer ===== */
.site-footer{
    margin-top:60px;
    background:rgba(4,9,16,.9);
    border-top:1px solid rgba(255,255,255,.06);
}
.footer-main{padding:50px 0 30px}
.footer-grid{
    display:grid;
    grid-template-columns:1.35fr 1fr .9fr;
    gap:42px;
}
.footer-brand .brand-main{font-size:21px}
.footer-brand p{
    margin-top:15px;
    font-size:13.5px;
    color:#7e95a8;
    max-width:320px;
    line-height:1.9;
}
.footer-title{
    color:#dbe5ed;
    font-size:15px;
    font-weight:700;
    margin-bottom:16px;
    position:relative;
    padding-bottom:8px;
}
.footer-title::after{
    content:"";
    position:absolute;
    left:0;
    bottom:0;
    width:22px;
    height:2px;
    border-radius:3px;
    background:linear-gradient(90deg,var(--cyan),var(--amber));
}
.footer-col{
    display:flex;
    flex-direction:column;
    gap:9px;
    font-size:14px;
}
.footer-col a{
    color:#9db1c1;
    transition:.2s;
}
.footer-col a:hover{
    color:#fff;
    transform:translateX(2px);
}
.footer-col .dim{
    color:#8ba0af;
    line-height:1.6;
}
.footer-col .dim a{color:#c3d2de;text-decoration:underline;text-decoration-color:rgba(255,255,255,.2)}
.footer-bottom{
    border-top:1px solid rgba(255,255,255,.07);
    padding:22px 0;
    display:flex;
    justify-content:space-between;
    gap:12px;
    font-size:12px;
    color:#6b8295;
}
.footer-bottom .container-x{
    display:flex;
    justify-content:space-between;
    flex-wrap:wrap;
    gap:10px;
}
.copy-text,.icp-text{font-size:13px;color:#6b8295}

/* ===== media breakpoints ===== */
@media(max-width:1280px){
    .process-steps{gap:14px}
    .process-step{padding:18px 14px}
    .fc-hotline{grid-template-columns:1fr 1fr;gap:18px}
}
@media(max-width:1024px){
    .block{padding:62px 0}
    .side-panel{
        transform:translateX(-105%);
        transition:transform .3s ease;
        box-shadow:none;
    }
    body.drawer-open .side-panel{transform:translateX(0)}
    .side-close{
        display:inline-flex;
        width:34px;height:34px;
        align-items:center;
        justify-content:center;
        border-radius:10px;
        background:rgba(255,255,255,.08);
        color:var(--text-body);
        border:1px solid rgba(255,255,255,.1);
        font-size:16px;
    }
    .drawer-mask{display:block;visibility:hidden}
    body.drawer-open .drawer-mask{visibility:visible}
    .site-main{margin-left:0}
    .mobile-top{display:flex}
    .main-topbar{
        min-height:62px;
        padding-left:16px;
        padding-right:16px;
    }
    .topbar-status{display:none}
    .hero-grid{
        grid-template-columns:1fr;
        gap:24px;
    }
    .hero-visual{max-width:620px}
    .guide-layout,
    .faq-layout{
        grid-template-columns:1fr;
        gap:26px;
    }
    .guide-rail{
        position:static;
        top:auto;
    }
    .faq-intro-card{
        position:static;
    }
    .fc-hotline{
        grid-template-columns:1fr;
    }
}
@media(max-width:768px){
    .container-x{padding-left:18px;padding-right:18px}
    .page-hero{min-height:430px}
    .hero-title{
        font-size:36px;
    }
    .hero-actions .btn{
        width:100%;
        margin-right:0;
    }
    .block{padding:50px 0}
    .feature-grid{
        grid-template-columns:1fr;
        gap:14px;
    }
    .feature-card,
    .fc-card-sub{grid-column:span 1}
    .fc-hotline{
        grid-column:span 1;
        grid-template-columns:1fr;
        padding:26px;
    }
    .ft-img-col{width:100%}
    .tick-list{
        grid-template-columns:1fr;
    }
    .process-steps{
        grid-template-columns:1fr;
        gap:14px;
    }
    .process-steps::before{display:none}
    .step-num{
        width:48px;height:48px;
        border-radius:14px;
        font-size:20px;
    }
    .process-step{
        display:flex;
        gap:15px;
        align-items:flex-start;
        padding:20px;
    }
    .step-num{margin-bottom:0;flex:0 0 auto}
    .fc-hotline .fc-list{
        max-width:none;
    }
    .cta-band{
        padding:30px 22px;
        flex-direction:column;
        align-items:flex-start;
    }
    .cta-actions{width:100%}
    .cta-actions .btn{width:100%}
    .footer-grid{
        grid-template-columns:1fr;
        gap:28px;
    }
    .footer-bottom .container-x{
        flex-direction:column;
        text-align:center;
        justify-content:center;
        align-items:center;
    }
    .faq-q{padding-right:40px}
    .faq-q .faq-tag{display:none}
}
@media(max-width:520px){
    .main-topbar{
        padding:0 16px;
        justify-content:space-between;
    }
    .topbar-cta .btn{
        padding:8px 14px;
        font-size:13px;
    }
    .topbar-cta .topbar-status{display:none}
    .hero-actions{flex-direction:column}
    .hero-title{font-size:32px}
    .hero-title span{background:linear-gradient(100deg,#eef8ff,#7edeff)}
}