/* roulang page: index */
:root{
  --bg:#060B17;
  --panel:#0B1424;
  --panel2:#0F1A2E;
  --line:rgba(255,255,255,.11);
  --line-soft:rgba(255,255,255,.07);
  --glass:linear-gradient(145deg,rgba(255,255,255,.10),rgba(255,255,255,.02));
  --text:#EAF0FF;
  --sub:#9BA9C9;
  --weak:#64748E;
  --brand:#2E74FF;
  --brand2:#4C8FFF;
  --cyan:#53F5C4;
  --amber:#FFB979;
  --coral:#FF6F7D;
  --r-lg:20px;
  --r-md:14px;
  --r-pill:999px;
  --shadow-lg:0 24px 70px rgba(0,0,0,.42);
  --shadow-md:0 16px 44px rgba(0,0,0,.31);
  --font:-apple-system,BlinkMacSystemFont,"SF Pro SC","PingFang SC","Microsoft YaHei","Noto Sans CJK SC","Source Han Sans SC",sans-serif;
}
html{scroll-behavior:smooth}
body{background:var(--bg);color:var(--text);font-family:var(--font);line-height:1.75;font-size:16px;-webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility;}
img{max-width:100%;height:auto;display:block}
a{color:inherit;text-decoration:none;transition:color .2s,background .2s,border .2s,box-shadow .2s}
.grid-container{max-width:1280px;padding-left:20px;padding-right:20px}
.container{max-width:1280px;margin:0 auto;padding:0 20px}
main{display:block}
section{position:relative}
::selection{background:rgba(83,245,196,.28);color:#fff}
:focus-visible{outline:2px solid var(--cyan);outline-offset:3px;border-radius:6px}
a:focus-visible,button:focus-visible,input:focus-visible{outline:2px solid var(--cyan);outline-offset:3px}
h1,h2,h3,h4{line-height:1.25;font-weight:700;color:#fff;margin:0 0 18px;text-wrap:balance}
h1{font-size:clamp(2rem,5vw,3.6rem);letter-spacing:-.02em}
h2{font-size:clamp(1.6rem,3.2vw,2.3rem);letter-spacing:-.01em}
h3{font-size:1.18rem;font-weight:650}
p{margin:0}.lead-xl{font-size:1.11rem;color:var(--sub)}

/* 按钮 */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;border:1px solid transparent;border-radius:12px;height:50px;padding:0 30px;font-weight:650;font-size:.98rem;cursor:pointer;transition:transform .18s,box-shadow .18s,background .18s,border-color .18s;background:linear-gradient(135deg,var(--brand),var(--brand2));color:#fff;box-shadow:0 0 18px rgba(46,116,255,.22);min-width:180px}
.btn:hover{transform:translateY(-2px);box-shadow:0 10px 30px rgba(46,116,255,.28);color:#fff}
.btn:active{transform:translateY(1px);box-shadow:0 4px 12px rgba(46,116,255,.18)}
.btn-ghost{background:rgba(255,255,255,.06);border-color:rgba(255,255,255,.18);color:#e6ecff;box-shadow:none}
.btn-ghost:hover{background:rgba(255,255,255,.14);border-color:rgba(255,255,255,.3);box-shadow:var(--shadow-md)}
.btn-sm{height:42px;padding:0 20px;font-size:.9rem;min-width:130px;border-radius:10px}

/* 悬浮胶囊导航 */
.site-header{position:sticky;top:0;z-index:100;padding:14px 0 12px;pointer-events:none}
.site-header .bar, .site-header .nav{pointer-events:auto}
.bar{position:relative;width:min(1272px,calc(100% - 28px));margin:0 auto;height:68px;border-radius:var(--r-pill);background:rgba(7,13,28,.76);border:1px solid var(--line);box-shadow:0 20px 60px rgba(0,0,0,.36),inset 0 1px 0 rgba(255,255,255,.05);backdrop-filter:blur(18px);-webkit-backdrop-filter:blur(18px);display:flex;align-items:center;padding:0 22px}
.site-header::before{content:"";position:absolute;left:50%;transform:translateX(-50%);top:49px;width:300px;height:1px;pointer-events:none;z-index:-1;background:linear-gradient(90deg,transparent,rgba(83,245,196,.5),transparent)}
.logo-block{display:flex;align-items:center;gap:12px;margin-right:18px;flex-shrink:0;border-radius:999px;padding-right:10px}
.logo-mark{width:42px;height:42px;border-radius:12px;background:linear-gradient(135deg,#1B3F8F,#2E74FF 60%,#53F5C4 140%);display:grid;place-items:center;box-shadow:0 0 18px rgba(46,116,255,.4);color:#fff;font-weight:800;font-size:1.05rem;letter-spacing:-.05em;flex-shrink:0}
.logo-text{white-space:nowrap;font-weight:750;font-size:1.04rem;color:#fff;letter-spacing:.02em}
.logo-text small{display:block;font-size:.68rem;font-weight:400;color:var(--sub);letter-spacing:.1em}
.nav-links{display:flex;align-items:center;gap:4px;list-style:none;margin:0;padding:0;flex-wrap:nowrap;margin-inline:auto}
.nav-links li a{display:inline-flex;align-items:center;height:38px;padding:0 13px;border-radius:999px;font-size:.88rem;color:#BCC8E6;font-weight:500;white-space:nowrap}
.nav-links li a:hover{color:#fff;background:rgba(255,255,255,.08)}
.nav-links li.active a{background:rgba(46,116,255,.2);box-shadow:inset 0 0 0 1px rgba(76,143,255,.4);color:#fff}
.nav-cta{margin-left:12px;display:inline-flex}
.nav-cta .btn-sm{min-width:115px;height:40px;padding:0 21px;border-radius:999px}
.mobile-toggle{display:none;width:44px;height:44px;margin-left:10px;border-radius:50%;border:1px solid var(--line);background:rgba(255,255,255,.04);color:#fff;cursor:pointer;flex-shrink:0;align-items:center;justify-content:center}
@media(max-width:1160px){
  .nav-cta .btn-sm{display:none}
  .logo-text small{display:none}
  .nav-links li a{padding:0 11px}
}
@media(max-width:1020px){
  .site-header{padding-top:12px}
  .bar{height:auto;min-height:64px;flex-wrap:wrap;border-radius:26px;padding:10px 16px;gap:8px}
  .mobile-toggle{display:inline-flex}
  .nav-links{display:none;width:100%;flex-direction:column;align-items:stretch;gap:6px;margin:6px 0}
  .nav-links.open{display:flex}
  .nav-links li a{width:100%;justify-content:flex-start;height:46px;padding:0 18px}
  .nav-cta{margin-left:auto}
  .nav-cta .btn-sm{display:inline-flex}
  .logo-text small{display:block}
}

/* 区块间距 */
.section{padding:96px 0}
.section-half{padding:50px 0}
.section-head{margin-bottom:40px;max-width:860px}
.eyebrow{display:inline-flex;align-items:center;gap:8px;color:var(--cyan);font-size:.82rem;font-weight:600;letter-spacing:.08em;margin-bottom:14px;text-transform:uppercase}
.eyebrow::before{content:"";width:26px;height:1px;background:linear-gradient(90deg,var(--cyan),transparent)}
.eyebrow.center::after{content:"";width:26px;height:1px;background:linear-gradient(270deg,var(--cyan),transparent)}
.section-muted{background:rgba(255,255,255,.018)}

/* 通用卡片 */
.card{position:relative;background:rgba(255,255,255,.03);border:1px solid var(--line-soft);border-radius:var(--r-md);padding:26px;transition:border .25s,transform .25s,box-shadow .25s}
.card:hover{border-color:rgba(255,255,255,.2);transform:translateY(-4px);box-shadow:var(--shadow-md)}
.glass-card{background:var(--glass);border:1px solid var(--line);border-radius:var(--r-lg);box-shadow:inset 0 1px 0 rgba(255,255,255,.12),var(--shadow-md);backdrop-filter:blur(16px);-webkit-backdrop-filter:blur(16px)}
.mini-badge{display:inline-flex;align-items:center;gap:6px;height:27px;padding:0 12px;border-radius:999px;background:rgba(83,245,196,.12);border:1px solid rgba(83,245,196,.2);color:var(--cyan);font-size:.8rem;font-weight:600}
.mini-badge.blue{background:rgba(76,143,255,.14);border-color:rgba(76,143,255,.3);color:#BFD6FF}
.mini-badge.amber{background:rgba(255,185,121,.13);border-color:rgba(255,185,121,.26);color:var(--amber)}
.entry-mark{position:absolute;top:-8px;left:28px;width:9px;height:9px;border-radius:50%;background:var(--cyan);box-shadow:0 0 12px var(--cyan)}

/* Hero */
.hero{position:relative;padding:66px 0 96px;overflow:hidden;background-color:var(--bg)}
.hero .hero-bg{position:absolute;inset:0;background-image:url('/assets/images/backpic/back-1.webp');background-size:cover;background-position:center 30%;opacity:.34;filter:saturate(.88)}
.hero .hero-overlay{position:absolute;inset:0;background:linear-gradient(180deg,rgba(6,11,23,.76),rgba(6,11,23,.94) 72%,#060B17);}
.hero .grid-container{position:relative;z-index:2}
.hero-copy{max-width:720px}
.hero-badge{display:inline-flex;align-items:center;gap:10px;height:34px;padding:0 15px;border-radius:999px;background:rgba(255,255,255,.06);border:1px solid var(--line);font-size:.8rem;color:#D5DFFB;margin-bottom:22px}
.hero-badge i{width:8px;height:8px;border-radius:50%;background:var(--cyan);box-shadow:0 0 10px var(--cyan)}
.hero-actions{display:flex;gap:14px;margin-top:34px;flex-wrap:wrap}
.hero-note{color:var(--weak);font-size:.86rem;margin-top:14px}

/* 资格面板 */
.access-panel{background:var(--glass);border:1px solid var(--line);border-radius:var(--r-lg);padding:24px;backdrop-filter:blur(16px);box-shadow:inset 0 1px 0 rgba(255,255,255,.18),var(--shadow-lg)}
.status-row{display:flex;align-items:center;justify-content:space-between;gap:18px;padding:14px 0;border-bottom:1px dashed rgba(255,255,255,.12)}
.status-row:last-of-type{border-bottom:0}
.status-title{color:var(--sub);font-size:.88rem}
.status-value{font-weight:700;color:#fff;font-size:.9rem;display:inline-flex;align-items:center;gap:6px}
.status-value.on::before{content:"";width:7px;height:7px;border-radius:50%;background:var(--cyan);box-shadow:0 0 8px var(--cyan)}
.cover-card{border-radius:var(--r-lg);overflow:hidden;position:relative;box-shadow:var(--shadow-lg)}
.cover-card img{width:100%;height:100%;object-fit:cover}

/* 信息条 */
.info-strip{background:rgba(255,255,255,.028);border-block:1px solid rgba(255,255,255,.06)}
.info-strip .grid-x{align-items:center}
.info-term{display:flex;gap:14px;align-items:center;padding:18px 12px}
.info-term .term-ic{width:42px;height:42px;flex-shrink:0;border-radius:12px;background:rgba(76,143,255,.12);border:1px solid rgba(76,143,255,.2);display:grid;place-items:center;color:#9CC1FF;font-size:1.1rem}
.info-term strong{display:block;font-size:.92rem;color:#fff;margin-bottom:2px}
.info-term span{font-size:.8rem;color:var(--weak)}

/* 故事区 */
.story-text p{color:#BAC5DF;margin-bottom:16px}
.story-points{list-style:none;padding:0;margin:26px 0 0}
.story-points li{display:flex;gap:12px;margin-bottom:13px;color:#DDE6FA}
.story-points i{flex-shrink:0;width:20px;height:20px;margin-top:3px;border-radius:50%;background:rgba(83,245,196,.14);color:var(--cyan);display:grid;place-items:center;font-style:normal;font-size:.7rem}
.glass-frame{position:relative;border-radius:var(--r-lg);background:linear-gradient(135deg,rgba(255,255,255,.22),rgba(255,255,255,.02));padding:14px;border:1px solid rgba(255,255,255,.18);box-shadow:var(--shadow-lg)}
.glass-frame::after{content:"";position:absolute;inset:8px;border-radius:14px;border:1px solid rgba(255,255,255,.07);pointer-events:none}
.glass-frame img{border-radius:12px 12px 18px 18px;width:100%;object-fit:cover}

/* Bento showcase */
.bento{display:grid;grid-template-columns:repeat(6,1fr);gap:20px}
.bento-item{position:relative;min-height:190px;border-radius:var(--r-lg);padding:24px;border:1px solid var(--line-soft);background:rgba(13,21,40,.72);overflow:hidden;transition:border .3s,transform .3s}
.bento-item:hover{border-color:rgba(255,255,255,.25);transform:translateY(-4px)}
.bento-item.span-4{grid-column:span 4}
.bento-item.span-2{grid-column:span 2}
.bento-item.dark{background:linear-gradient(145deg,rgba(255,255,255,.07),rgba(255,255,255,.01));border-color:var(--line)}
.bento-item .b-icon{width:46px;height:46px;border-radius:14px;background:rgba(83,245,196,.12);border:1px solid rgba(83,245,196,.18);display:grid;place-items:center;color:var(--cyan);font-size:1.1rem;margin-bottom:16px;font-weight:700;font-style:normal}
.bento-item h3{font-size:1.12rem;margin-bottom:8px}
.bento-item p{color:#9BA9C9;font-size:.9rem;line-height:1.7}
.bento-link{display:inline-flex;align-items:center;gap:7px;font-size:.83rem;letter-spacing:.03em;margin-top:18px;color:#C7D4F1;font-weight:600}
.bento-link:hover{color:var(--cyan);gap:12px}
.bento-link::after{content:"→";transition:all .2s}
@media(max-width:1020px){.bento{grid-template-columns:repeat(2,1fr)}.bento-item.span-4,.bento-item.span-2{grid-column:span 1}}
@media(max-width:720px){.bento{grid-template-columns:1fr}.bento-item.span-4,.bento-item.span-2{grid-column:auto}}

/* 服务入口行 */
.entry-grid .entry-item{display:flex;flex-direction:column;justify-content:space-between;height:100%}
.entry-link{position:absolute;inset:0;border-radius:var(--r-lg);z-index:1}
.entry-arrow{display:inline-flex;align-items:center;gap:8px;margin-top:18px;font-size:.9rem;font-weight:600;color:var(--cyan)}
.entry-item p{color:var(--sub);font-size:.9rem;margin-top:8px}

/* 信任 */
.trust-number{font-family:"SF Mono","Cascadia Code",ui-monospace,monospace;font-weight:650;font-size:clamp(1.7rem,3vw,2.3rem);letter-spacing:-.03em;color:#fff}
.trust-box{background:rgba(255,255,255,.02);border:1px solid var(--line-soft);border-radius:var(--r-md);padding:20px;height:100%}
.trust-box .c{color:var(--sub);font-size:.84rem;margin-top:4px}

/* 列表数据 */
.feat-card{padding:22px;display:block}
.item-date{color:var(--weak);font-family:ui-monospace,"Cascadia Mono",monospace;font-size:.78rem;letter-spacing:.03em;margin-bottom:6px}
.item-title{color:#fff;font-weight:650;margin-bottom:5px;line-height:1.55}
.item-summary{color:#8BA0C2;font-size:.9rem;line-height:1.65;overflow:hidden;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical}
.empty-tip{display:flex;flex-direction:column;align-items:center;gap:8px;padding:52px 20px;text-align:center;color:var(--sub);border:1px dashed rgba(255,255,255,.14);border-radius:18px;background:rgba(255,255,255,.02)}

/* 资讯区 */
.latest-wrap{border:1px solid var(--line-soft);border-radius:var(--r-lg);background:rgba(255,255,255,.025);overflow:hidden}
.latest-main{padding:0;display:flex;flex-direction:column;height:100%;border-right:1px solid var(--line-soft)}
.latest-main figure{margin:0}
.latest-main img{width:100%;height:260px;object-fit:cover;display:block}
.latest-main .m-body{padding:28px}
.latest-main .item-title{font-size:1.45rem;line-height:1.45}
.latest-main .item-summary{font-size:1rem;display:-webkit-box;-webkit-line-clamp:3}
.latest-main .read-more{display:inline-flex;gap:6px;color:var(--cyan);font-size:.9rem;font-weight:600;margin-top:15px}
.latest-list{padding:10px 0}
.list-mini{display:flex;align-items:flex-start;gap:6px;padding:17px 24px;border-bottom:1px solid rgba(255,255,255,.065);transition:background .2s}
.list-mini:last-child{border-bottom:0}
.list-mini:hover{background:rgba(255,255,255,.04)}
.list-mini .date{min-width:94px;font-size:.8rem;color:var(--weak);font-family:ui-monospace,"Cascadia Mono",monospace;letter-spacing:.03em;padding-top:5px}
.list-mini .detail .item-title{font-size:.95rem;overflow:hidden;display:-webkit-box;-webkit-line-clamp:1;-webkit-box-orient:vertical}

/* FAQ 手风琴式列表（无外部依赖） */
.faq-list{max-width:830px}
.faq-item{border-bottom:1px solid var(--line-soft)}
.faq-item:first-child{border-top:1px solid var(--line-soft)}
.faq-q{position:relative;display:flex;align-items:center;gap:18px;padding:26px 4px;cursor:pointer;font-weight:650;color:#EDF3FF;transition:color .2s;list-style:none}
.faq-q::-webkit-details-marker{display:none}
.faq-q::after{content:"+";margin-left:auto;font-size:1.7rem;font-weight:300;line-height:1;color:var(--sub);transition:transform .3s;width:26px;text-align:right}
.faq-item[open] .faq-q::after{transform:rotate(45deg);color:var(--cyan)}
.faq-q:hover{color:#fff}
.faq-a{color:#B9C4E0;padding:0 4px 28px;line-height:1.85;max-width:760px;font-size:.95rem}
.faq-a a{color:var(--cyan)}

/* 订阅 */
.cta-wrap{position:relative;overflow:hidden;background:linear-gradient(135deg,rgba(46,116,255,.14),rgba(6,11,23,.6) 60%),#0B1A35;border:1px solid rgba(255,255,255,.14);border-radius:var(--r-lg);padding:58px 44px;box-shadow:var(--shadow-lg);display:flex;justify-content:space-between;gap:34px;align-items:center}
.cta-wrap .glow{position:absolute;top:-50%;left:24%;width:320px;height:380px;background:radial-gradient(circle,rgba(83,245,196,.14),transparent 68%);pointer-events:none}
.cta-form{display:flex;gap:10px;flex-wrap:wrap}
.cta-form .input{border:1px solid rgba(255,255,255,.2);background:rgba(5,10,25,.7);border-radius:12px;height:52px;color:#fff;font-size:.95rem;padding:0 18px;width:290px;margin:0;box-shadow:none}
.cta-form .input:focus{border-color:var(--cyan);background:rgba(5,10,25,.8)}
.privacy-note{width:100%;color:var(--weak);font-size:.8rem;margin-top:9px}

/* 页脚 */
.site-footer{position:relative;margin-top:50px;background:#040812;border-top:1px solid rgba(255,255,255,.07);padding:70px 0 30px}
.site-footer .footer-brand{font-size:1.1rem;font-weight:800;color:#fff;margin-bottom:10px;display:flex;align-items:center;gap:11px}
.footer-grid{display:grid;grid-template-columns:2fr 1.2fr 1.2fr 1.4fr;gap:40px}
.footer-grid h4{font-size:.93rem;color:#E4EBFA;margin-bottom:18px}
.footer-grid ul{list-style:none;padding:0;margin:0}
.footer-grid ul li{margin:0 0 11px}
.footer-grid ul a{color:#7C8CB0;font-size:.87rem;font-weight:400}
.footer-grid ul a:hover{color:var(--cyan)}
.footer-bottom{margin-top:48px;border-top:1px solid rgba(255,255,255,.07);padding-top:24px;display:flex;justify-content:space-between;gap:18px;flex-wrap:wrap;color:#5E6D8D;font-size:.8rem}
.footer-bottom .copyright a{color:#8795b8}
.footer-bottom .icp{display:inline-flex;gap:15px}
.footer-note{color:#75849F;font-size:.82rem;line-height:1.7;margin-top:14px}
.backtop{position:fixed;right:25px;bottom:25px;width:46px;height:46px;border-radius:50%;background:rgba(9,15,38,.85);border:1px solid var(--line);color:#cbd7f3;display:flex;align-items:center;justify-content:center;backdrop-filter:blur(10px);z-index:90;transition:opacity .3s}
.backtop:hover{background:rgba(33,46,76,.9);color:#fff}
@media(max-width:1020px){
  .footer-grid{grid-template-columns:1fr 1fr}
  .cta-wrap{flex-direction:column;align-items:flex-start}
}
@media(max-width:640px){
  .section{padding:60px 0}
  .hero{padding-top:34px}
  .hero-actions .btn{width:100%}
  .footer-grid{grid-template-columns:1fr}
  .cta-wrap{padding:42px 24px}
  .cta-form .input{width:100%}
  .cta-form .btn{width:100%}
}
/* 工具用 */
.text-center{text-align:center}
.mt-16{margin-top:16px}.mt-24{margin-top:24px}.mt-32{margin-top:32px}
.arr{display:inline-block;transition:transform .2s;color:var(--cyan)}
a:hover>.arr,a:focus>.arr{transform:translateX(6px)}

/* roulang page: category1 */
:root{
  --bg:#060B17;
  --bg2:#0B1424;
  --panel:rgba(16,24,44,.76);
  --ink:#EAF0FF;
  --muted:#9BA9C9;
  --weak:#64748E;
  --blue:#2E74FF;
  --blue2:#4C8FFF;
  --cyan:#4FE3C2;
  --amber:#FFB979;
  --coral:#FF6F7D;
  --stroke:rgba(255,255,255,.14);
  --soft-stroke:rgba(255,255,255,.09);
  --glass:linear-gradient(145deg, rgba(255,255,255,.10), rgba(255,255,255,.02));
  --shadow:0 18px 44px rgba(0,0,0,.35);
  --radius:20px;
  --radius-lg:28px;
  --font:-apple-system, BlinkMacSystemFont, "SF Pro SC", "PingFang SC", "Microsoft YaHei", "Noto Sans CJK SC", "Source Han Sans SC", sans-serif;
}

*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{
  background:var(--bg);
  background-image:
    radial-gradient(1100px 480px at 82% -8%, rgba(46,116,255,.14), transparent 60%),
    radial-gradient(820px 420px at -10% 22%, rgba(79,227,194,.07), transparent 55%);
  color:var(--ink);
  font-family:var(--font);
  font-size:16px;
  line-height:1.7;
  min-height:100vh;
  -webkit-font-smoothing:antialiased;
}
body::before{
  content:"";
  position:fixed;
  inset:0;
  background-image:linear-gradient(rgba(255,255,255,.025) 1px, transparent 1px),linear-gradient(90deg, rgba(255,255,255,.025) 1px, transparent 1px);
  background-size:52px 52px;
  pointer-events:none;
  z-index:0;
}
img{max-width:100%;display:block}
a{color:var(--cyan);text-decoration:none;transition:color .22s ease}
ul,ol{list-style:none}
button{font-family:var(--font);cursor:pointer}
::selection{background:rgba(46,116,255,.45);color:#fff}

:focus-visible{outline:3px solid rgba(79,227,194,.7);outline-offset:3px;border-radius:6px}

.grid-container{max-width:1280px}
.site-header{position:fixed;top:14px;left:0;right:0;z-index:90;transition:transform .3s ease}
.header-shell{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:20px;
  width:min(1240px, calc(100% - 28px));
  margin:0 auto;
  padding:8px 10px 8px 20px;
  border-radius:999px;
  background:linear-gradient(145deg, rgba(16,24,44,.92), rgba(7,13,27,.86));
  border:1px solid var(--stroke);
  box-shadow:0 14px 42px rgba(0,0,0,.45), inset 0 1px 0 rgba(255,255,255,.08);
  backdrop-filter:blur(18px);
  -webkit-backdrop-filter:blur(18px);
  position:relative;
}
.header-shell::after{
  content:"";
  position:absolute;
  left:24px;
  right:24px;
  bottom:-1px;
  height:1px;
  background:linear-gradient(90deg, transparent, rgba(79,227,194,.55), rgba(46,116,255,.55), transparent);
  opacity:.7;
  border-radius:999px;
  pointer-events:none;
}
.site-header.scrolled .header-shell{box-shadow:0 20px 52px rgba(0,0,0,.5), inset 0 1px 0 rgba(255,255,255,.1)}
.logo-mark{
  flex:0 0 auto;
  width:38px;
  height:38px;
  border-radius:13px;
  display:inline-flex;
  align-items:center;
  justify-content:center;
  background:linear-gradient(135deg,#2E74FF,#4FE3C2);
  color:#fff;
  font-weight:800;
  font-size:.9rem;
  letter-spacing:.03em;
  box-shadow:0 0 0 1px rgba(255,255,255,.22) inset,0 6px 18px rgba(46,116,255,.35);
}
.brand{display:inline-flex;align-items:center;gap:10px;color:var(--ink);font-weight:700;font-size:1.05rem;letter-spacing:.01em}
.brand:hover{color:#fff}
.nav-links{display:flex;align-items:center;gap:4px;margin:0;padding:0}
.nav-links li{margin:0}
.nav-links li a{
  display:inline-flex;
  align-items:center;
  padding:9px 15px;
  border-radius:999px;
  font-size:.94rem;
  font-weight:500;
  color:var(--muted);
  background:transparent;
  border:1px solid transparent;
  transition:all .22s ease;
}
.nav-links li a:hover{color:#fff;background:rgba(255,255,255,.07)}
.nav-links li.active a,
.nav-links li a[aria-current="page"]{
  color:#fff;
  background:linear-gradient(135deg, rgba(46,116,255,.28), rgba(79,227,194,.14));
  border-color:rgba(255,255,255,.16);
  box-shadow:0 0 20px rgba(46,116,255,.16);
}
.header-right{display:flex;align-items:center;gap:10px}
.header-cta{white-space:nowrap}
.nav-toggle{
  display:none;
  width:42px;
  height:42px;
  align-items:center;
  justify-content:center;
  border-radius:999px;
  background:rgba(255,255,255,.07);
  border:1px solid var(--stroke);
  color:var(--ink);
  font-size:1.1rem;
  transition:background .2s ease;
}
.nav-toggle:hover{background:rgba(255,255,255,.14);color:#fff}

.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:9px;
  border-radius:999px;
  padding:.88rem 1.55rem;
  font-size:.97rem;
  font-weight:600;
  line-height:1.2;
  border:1px solid transparent;
  color:var(--ink);
  transition:transform .22s ease, box-shadow .22s ease, background .22s ease, color .22s ease, border-color .22s ease;
  white-space:nowrap;
}
.btn i{font-size:.95em;color:inherit}
.btn-primary{
  background:linear-gradient(135deg,#2E74FF,#4C8FFF);
  color:#fff;
  box-shadow:0 8px 26px rgba(46,116,255,.3), 0 0 0 1px rgba(255,255,255,.14) inset;
}
.btn-primary:hover{transform:translateY(-2px);color:#fff;background:linear-gradient(135deg,#3A81FF,#5598FF);box-shadow:0 12px 34px rgba(74,140,255,.4), 0 0 0 1px rgba(255,255,255,.2) inset}
.btn-primary:active{transform:translateY(0)}
.btn-ghost{
  background:rgba(255,255,255,.055);
  border-color:var(--stroke);
  color:#fff;
}
.btn-ghost:hover{background:rgba(255,255,255,.11);border-color:rgba(255,255,255,.28);color:#fff}
.btn-ghost:active{transform:translateY(0)}
.btn-small{padding:.52rem .95rem;font-size:.88rem}
.btn-large{padding:1rem 1.95rem;font-size:1.02rem}
.btn .btn-icon{opacity:.9}

.chip{
  display:inline-flex;
  align-items:center;
  gap:7px;
  padding:6px 13px;
  border-radius:999px;
  font-size:.82rem;
  font-weight:600;
  letter-spacing:.02em;
}
.chip-news{color:var(--cyan);background:rgba(79,227,194,.1);border:1px solid rgba(79,227,194,.22)}
.chip-blue{color:#B9CCFF;background:rgba(46,116,255,.12);border:1px solid rgba(46,116,255,.26)}
.chip-amber{color:var(--amber);background:rgba(255,185,121,.1);border:1px solid rgba(255,185,121,.24)}

.eyebrow{
  display:inline-flex;
  align-items:center;
  gap:10px;
  color:var(--muted);
  font-size:.9rem;
  letter-spacing:.04em;
}
.eyebrow .eyebrow-bar{width:28px;height:2px;background:var(--cyan);border-radius:2px;box-shadow:0 0 10px rgba(79,227,194,.7)}

.text-cyan{color:var(--cyan)}

.page-hero{
  position:relative;
  padding:188px 0 66px;
  background-color:var(--bg2);
  overflow:hidden;
}
.hero-img-bg{
  position:absolute;
  inset:0;
  background-size:cover;
  background-position:center;
  opacity:.36;
}
.hero-img-bg::after{
  content:"";
  position:absolute;
  inset:0;
  background:linear-gradient(180deg, rgba(6,11,23,.72), rgba(6,11,23,.86) 62%, var(--bg) 100%);
}
.hero-veil{
  position:absolute;
  inset:0;
  background:
    radial-gradient(720px 300px at 72% 22%, rgba(46,116,255,.16), transparent 70%),
    radial-gradient(500px 260px at 8% 48%, rgba(79,227,194,.07), transparent 60%);
  z-index:1;
  pointer-events:none;
}
.page-hero .grid-container{position:relative;z-index:2}
.hero-inner{display:grid;grid-template-columns:minmax(0,1.55fr) minmax(300px,.7fr);gap:52px;align-items:center}
.breadcrumb{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:10px;
  color:var(--muted);
  font-size:.9rem;
  margin-bottom:22px;
}
.breadcrumb a{color:var(--muted)}
.breadcrumb a:hover{color:var(--cyan)}
.breadcrumb .sep{opacity:.5;color:var(--weak);font-size:.8rem}
.breadcrumb .current{color:var(--ink)}
.hero-title{
  font-size:clamp(2rem, 4.6vw, 3.5rem);
  font-weight:750;
  line-height:1.16;
  letter-spacing:-.02em;
  color:#fff;
  margin:18px 0 16px;
  text-wrap:balance;
}
.hero-title .grad-text{
  background:linear-gradient(100deg,#7ff0db 0%,#4C8FFF 70%,#7FA9FF 100%);
  -webkit-background-clip:text;
  background-clip:text;
  -webkit-text-fill-color:transparent;
  color:transparent;
}
.hero-lead{
  color:var(--muted);
  font-size:1.12rem;
  max-width:640px;
  line-height:1.8;
  margin-bottom:30px;
}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:26px}
.hero-points{display:flex;flex-wrap:wrap;gap:22px;padding-top:6px}
.hero-points li{display:flex;align-items:center;gap:1px;color:var(--sub);font-size:.9rem;color:var(--muted)}
.hero-points i{color:var(--cyan);margin-right:8px;font-size:1rem}

.hero-status{
  position:relative;
  border-radius:var(--radius-lg);
  padding:26px 26px 20px;
  overflow:hidden;
}
.hero-status .glass-bg::before{left:-40px;top:-52px;width:180px;height:180px;background:radial-gradient(circle,rgba(79,227,194,.2),transparent 68%)}
.status-head{display:flex;align-items:center;gap:10px;margin-bottom:20px}
.status-head .status-dot{
  width:9px;height:9px;border-radius:50%;background:var(--cyan);
  box-shadow:0 0 0 0 rgba(79,227,194,.5);
}
.status-title{font-weight:650;color:#fff;font-size:.98rem}
.status-pill{
  margin-left:auto;
  font-size:.78rem;
  color:var(--cyan);
  background:rgba(79,227,194,.1);
  border:1px solid rgba(79,227,194,.22);
  border-radius:999px;
  padding:3px 10px;
}
.hero-status dl{display:grid;gap:0;margin:0}
.hero-status dl > div{
  display:flex;align-items:flex-start;justify-content:space-between;gap:14px;
  padding:12px 0;
  border-bottom:1px dashed rgba(255,255,255,.1);
}
.hero-status dl > div:last-child{border-bottom:0}
.hero-status dt{color:var(--muted);font-size:.88rem;min-width:72px}
.hero-status dd{font-size:.92rem;color:var(--ink);text-align:right;line-height:1.5}

.glass-card{
  background:linear-gradient(145deg, rgba(255,255,255,.1), rgba(255,255,255,.02)), rgba(8,15,30,.6);
  border:1px solid var(--stroke);
  border-radius:var(--radius);
  box-shadow:var(--shadow), inset 0 1px 0 rgba(255,255,255,.12);
  backdrop-filter:blur(16px);
  -webkit-backdrop-filter:blur(16px);
  position:relative;
}
.glass-card::before{
  content:"";
  position:absolute;
  left:-46px;top:-60px;
  width:190px;height:190px;
  border-radius:50%;
  background:radial-gradient(circle, rgba(46,116,255,.22), transparent 70%);
  pointer-events:none;
  z-index:0;
}
.hero-status > *{position:relative;z-index:1}

.section{padding:96px 0;position:relative}
.section-alt{background:rgba(10,18,34,.44)}
.section-head{margin-bottom:56px;max-width:880px}
.section-head h2{
  font-size:clamp(1.75rem,3vw,2.35rem);
  line-height:1.25;
  letter-spacing:-.02em;
  margin:18px 0 14px;
  color:#fff;
}
.section-head .section-sub{color:var(--muted);font-size:1.05rem;line-height:1.8}

.split-grid{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1.05fr);gap:64px;align-items:center}

.check-list{margin:0;display:grid;gap:4px}
.check-list li{
  display:grid;
  grid-template-columns:46px auto;
  gap:16px;
  align-items:flex-start;
  padding:16px 0;
  border-bottom:1px dashed rgba(255,255,255,.1);
}
.check-list li:last-child{border-bottom:0}
.check-list .ck-icon{
  width:44px;
  height:44px;
  border-radius:14px;
  display:inline-flex;
  align-items:center;
  justify-content:center;
  background:rgba(79,227,194,.08);
  color:var(--cyan);
  border:1px solid rgba(79,227,194,.16);
  font-size:1.15rem;
}
.check-list h3{font-size:1.12rem;font-weight:650;color:#fff;margin:4px 0 6px}
.check-list p{color:var(--muted);font-size:.92rem;line-height:1.7;margin:0}

.figure-wrap{position:relative}
.figure-stage{
  position:relative;
  border-radius:30px;
  padding:9px;
  background:linear-gradient(145deg, rgba(255,255,255,.16), rgba(255,255,255,.03));
  border:1px solid rgba(255,255,255,.17);
  box-shadow:0 24px 70px rgba(0,0,0,.45);
}
.figure-stage img{
  width:100%;
  aspect-ratio:5/3.6;
  object-fit:cover;
  border-radius:24px;
}
.figure-stage::before{
  content:"";
  position:absolute;
  inset:-1px;
  border-radius:30px;
  border:1px solid transparent;
  border-top-color:rgba(255,255,255,.25);
  pointer-events:none;
}
.figure-caption{
  display:flex;
  align-items:center;
  gap:9px;
  margin-top:14px;
  font-size:.86rem;
  color:var(--muted);
}
.figure-caption i{color:var(--cyan)}
.figure-halo{
  position:absolute;
  z-index:-1;
  right:-30px;
  bottom:-40px;
  width:240px;
  height:240px;
  background:radial-gradient(circle,rgba(46,116,255,.14), transparent 70%);
  pointer-events:none;
}

.steps-map{
  position:relative;
  max-width:880px;
  margin:0 auto;
}
.steps-map::before{
  content:"";
  position:absolute;
  top:32px;
  bottom:32px;
  left:35px;
  width:1px;
  background:linear-gradient(180deg, rgba(46,116,255,.6), rgba(79,227,194,.3));
}
.step-item{
  position:relative;
  display:grid;
  grid-template-columns:72px minmax(0,1fr);
  gap:26px;
  margin-bottom:30px;
  align-items:start;
}
.step-item:last-child{margin-bottom:0}
.step-index{
  width:72px;
  height:72px;
  border-radius:20px;
  display:flex;
  align-items:center;
  justify-content:center;
  background:linear-gradient(145deg, rgba(46,116,255,.25), rgba(12,22,44,.7));
  border:1px solid rgba(84,150,255,.35);
  box-shadow:0 0 0 6px rgba(8,15,30,.85), 0 8px 30px rgba(46,116,255,.16);
  color:#fff;
  font-size:1.35rem;
  font-weight:800;
  font-family:ui-monospace,SFMono-Regular,Consolas,monospace;
  letter-spacing:-.02em;
  position:relative;
  z-index:1;
}
.step-card{border-radius:22px;padding:26px 28px}
.step-card .step-tag{position:absolute;top:20px;right:24px}
.step-card h3{font-size:1.28rem;font-weight:700;color:#fff;margin:4px 0 10px}
.step-card p{color:var(--muted);line-height:1.8;font-size:.98rem;margin-bottom:16px}
.step-tip{
  display:flex;
  gap:10px;
  align-items:flex-start;
  background:rgba(255,255,255,.04);
  border-left:3px solid var(--cyan);
  border-radius:0 12px 12px 0;
  padding:12px 14px;
  color:var(--muted);
  font-size:.88rem;
  line-height:1.7;
}
.step-tip i{color:var(--cyan);margin-top:3px}

.env-band{margin-top:0}
.env-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:18px;counter-reset:env}
.env-item{
  position:relative;
  border-radius:22px;
  padding:28px 24px;
  overflow:hidden;
}
.env-item::before{
  content:"";
  position:absolute;
  top:0;right:0;
  width:104px;height:104px;
  border-radius:0 0 0 100%;
  background:linear-gradient(145deg, rgba(79,227,194,.16), transparent 72%);
  pointer-events:none;
}
.env-item .env-no{
  position:absolute;
  top:18px;right:20px;
  color:rgba(255,255,255,.16);
  font-size:1.5rem;
  font-weight:800;
  font-family:ui-monospace,Consolas,monospace;
}
.env-icon{
  width:50px;height:50px;
  border-radius:16px;
  background:rgba(46,116,255,.12);
  border:1px solid rgba(46,116,255,.2);
  display:inline-flex;
  align-items:center;
  justify-content:center;
  color:var(--blue2);
  font-size:1.25rem;
  margin-bottom:18px;
}
.env-item h3{font-size:1.05rem;font-weight:700;color:#fff;margin-bottom:8px}
.env-item p{color:var(--muted);font-size:.92rem;line-height:1.65;margin:0}

.faq-section .section-head{max-width:820px}
.faq-shell{
  max-width:930px;
  margin:0 auto;
  padding:12px 34px;
  border-radius:30px;
  background:rgba(9,17,32,.52);
  border:1px solid rgba(255,255,255,.09);
}
.accordion.faq-accordion{list-style:none;margin:0;background:transparent;border:0}
.faq-accordion .accordion-item{
  background:transparent;
  border-bottom:1px solid rgba(255,255,255,.09);
  border-radius:0;
  list-style:none;
}
.faq-accordion .accordion-item:last-child{border-bottom:0}
.faq-accordion .accordion-item .accordion-title{
  display:flex;
  align-items:center;
  gap:14px;
  background:transparent;
  border-radius:0;
  border:0;
  padding:24px 4px;
  color:#fff;
  font-size:1.04rem;
  font-weight:600;
  line-height:1.5;
  position:relative;
  transition:color .2s ease;
}
.faq-accordion .accordion-title:hover,
.faq-accordion .accordion-title:focus{color:var(--cyan);background:transparent}
.faq-accordion .accordion-title::before,
.faq-accordion .accordion-title::after{content:none}
.faq-q-mark{
  flex:0 0 auto;
  width:30px;height:30px;
  border-radius:9px;
  background:rgba(79,227,194,.1);
  border:1px solid rgba(79,227,194,.2);
  color:var(--cyan);
  display:inline-flex;
  align-items:center;
  justify-content:center;
  font-weight:800;
  font-size:.9rem;
}
.faq-icon{margin-left:auto;color:var(--muted);font-size:1rem;transition:transform .28s ease,color .2s ease;flex:0 0 auto}
.faq-accordion .accordion-item.is-active .faq-icon{transform:rotate(45deg);color:var(--cyan)}
.faq-accordion .accordion-item.is-active .accordion-title{color:#fff}
.faq-accordion .accordion-content{
  background:transparent;
  border:0;
  color:var(--muted);
  font-size:.96rem;
  line-height:1.85;
  padding:0 4px 28px 48px;
}
.faq-accordion .accordion-content p{margin:0;max-width:720px}

.cta-section{padding:48px 0 130px}
.cta-box{
  position:relative;
  border-radius:34px;
  padding:62px 64px;
  overflow:hidden;
  background:
    radial-gradient(600px 240px at 85% 20%, rgba(79,227,194,.13), transparent 65%),
    radial-gradient(700px 320px at 10% 100%, rgba(46,116,255,.2), transparent 60%),
    linear-gradient(145deg,#0f1d3a,#0a1328);
  border:1px solid rgba(255,255,255,.15);
  box-shadow:0 30px 90px rgba(0,0,0,.42), inset 0 1px 0 rgba(255,255,255,.12);
}
.cta-box .chip{position:relative;z-index:1}
.cta-box h2{
  font-size:clamp(1.7rem,3vw,2.5rem);
  line-height:1.3;
  font-weight:750;
  color:#fff;
  margin:18px 0 14px;
  position:relative;
  z-index:1;
  text-wrap:balance;
}
.cta-box p{
  color:var(--muted);
  max-width:680px;
  font-size:1.03rem;
  line-height:1.8;
  margin-bottom:34px;
  position:relative;
  z-index:1;
}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px;position:relative;z-index:1}
.cta-note{
  margin-top:18px;
  font-size:.86rem;
  color:var(--weak);
  display:flex;
  align-items:center;
  gap:8px;
  position:relative;
  z-index:1;
}
.cta-note i{color:var(--cyan);opacity:.8}

.site-footer{
  background:#050a13;
  border-top:1px solid rgba(255,255,255,.07);
  padding:74px 0 36px;
  position:relative;
  z-index:2;
  overflow:hidden;
}
.site-footer::before{
  content:"";
  position:absolute;
  top:-120px;
  left:50%;
  transform:translateX(-50%);
  width:700px;
  height:200px;
  background:radial-gradient(closest-side, rgba(46,116,255,.14), transparent);
  pointer-events:none;
}
.footer-grid{
  display:grid;
  grid-template-columns:1.5fr 1fr 1fr 1.1fr;
  gap:44px;
  padding-bottom:52px;
}
.footer-brand{
  display:flex;
  align-items:center;
  gap:12px;
  font-size:1.15rem;
  color:#fff;
  font-weight:700;
}
.footer-note{
  color:var(--weak);
  font-size:.9rem;
  line-height:1.85;
  margin:20px 0 0;
  max-width:360px;
}
.site-footer h4{
  font-size:.97rem;
  color:#fff;
  font-weight:650;
  margin-bottom:22px;
  letter-spacing:.02em;
}
.site-footer ul{margin:0}
.site-footer ul li{margin-bottom:12px}
.site-footer ul a{
  color:var(--muted);
  font-size:.9rem;
  display:inline-flex;
  align-items:center;
  gap:8px;
  transition:color .2s ease,padding-left .2s ease;
}
.site-footer ul a::before{
  content:"";
  width:4px;height:4px;
  border-radius:50%;
  background:var(--blue2);
  box-shadow:0 0 8px rgba(79,140,255,.6);
  opacity:.7;
}
.site-footer ul a:hover{color:var(--cyan);padding-left:4px}
.footer-bottom{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:20px;
  flex-wrap:wrap;
  border-top:1px solid rgba(255,255,255,.07);
  padding-top:26px;
  font-size:.86rem;
  color:var(--weak);
}
.footer-bottom .copyright{color:var(--muted)}
.icp{display:flex;gap:26px;align-items:center}

.back-top{
  position:fixed;
  right:22px;
  bottom:24px;
  z-index:80;
  width:48px;
  height:48px;
  border-radius:999px;
  background:rgba(13,22,42,.8);
  border:1px solid var(--stroke);
  color:var(--muted);
  font-size:1.05rem;
  display:flex;
  align-items:center;
  justify-content:center;
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
  box-shadow:0 12px 32px rgba(0,0,0,.34);
  transition:opacity .2s ease,transform .2s ease,color .2s ease,background .2s ease;
  opacity:0;
  pointer-events:none;
}
.back-top.show{opacity:1;pointer-events:auto}
.back-top:hover{color:#fff;background:rgba(30,49,86,.95);transform:translateY(-3px)}

@media screen and (max-width:1024px){
  .hero-inner{grid-template-columns:1fr;gap:28px}
  .hero-status{max-width:560px}
  .env-grid{grid-template-columns:repeat(2,1fr)}
  .split-grid{grid-template-columns:1fr;gap:34px}
  .figure-wrap{order:-1}
  .footer-grid{grid-template-columns:1fr 1fr}
  .footer-note{max-width:none}
  .section{padding:78px 0}
  .cta-box{padding:46px 34px}
}

@media screen and (max-width:860px){
  .nav-toggle{display:inline-flex}
  .nav-links{
    display:none;
    position:absolute;
    top:calc(100% + 12px);
    left:18px;
    right:18px;
    flex-direction:column;
    align-items:stretch;
    padding:14px;
    background:rgba(8,15,29,.96);
    border:1px solid var(--stroke);
    border-radius:26px;
    box-shadow:0 24px 60px rgba(0,0,0,.5);
    backdrop-filter:blur(20px);
    -webkit-backdrop-filter:blur(20px);
  }
  .nav-links.open{display:flex;animation:navDrop .2s ease}
  .nav-links li{width:100%}
  .nav-links li a{width:100%;justify-content:center;padding:13px}
  .header-cta .cta-label{display:none}
  .header-cta{border-radius:12px!important;width:42px;height:42px;padding:0!important}
  .steps-map::before{left:25px}
  .step-item{grid-template-columns:54px minmax(0,1fr);gap:18px}
  .step-index{width:54px;height:54px;border-radius:16px;font-size:1.1rem}
}
@media screen and (max-width:639px){
  .page-hero{padding-top:170px}
  .env-grid{grid-template-columns:repeat(2,1fr)}
  .faq-shell{padding:6px 22px}
  .footer-grid{grid-template-columns:1fr}
  .footer-bottom{flex-direction:column;align-items:flex-start}
  .icp{flex-wrap:wrap;gap:16px}
  .cta-actions .btn{width:100%}
  .hero-actions .btn{flex:1}
  .section{padding:64px 0}
  .step-card h3{font-size:1.12rem}
  .step-card{padding:22px}
  .faq-accordion .accordion-content{padding-left:0}
  .figure-stage img{aspect-ratio:5/4}
}
@media screen and (max-width:420px){
  .header-shell{justify-content:space-between}
  .logo-text{font-size:.98rem;letter-spacing:-.02em}
  .hero-title{font-size:1.8rem}
  .hero-lead{font-size:1rem}
  .hero-points{row-gap:12px}
  .hero-actions{flex-direction:column}
  .hero-actions .btn{width:100%}
  .step-item{grid-template-columns:1fr}
  .step-index{width:52px;height:52px}
  .steps-map::before{display:none}
  .env-grid{grid-template-columns:1fr}
  .cta-box{padding:38px 22px}
  .cta-box h2{font-size:1.5rem}
}
@keyframes navDrop{
  from{opacity:0;transform:translateY(-8px)}
  to{opacity:1;transform:translateY(0)}
}

/* roulang page: article */
:root {
            --bg-deep: #070D1A;
            --bg-deep-2: #081120;
            --bg-soft: #0B1424;
            --panel: #10182C;
            --panel-glass: linear-gradient(145deg, rgba(255, 255, 255, .1), rgba(255, 255, 255, .02));
            --panel-solid: rgba(12, 18, 34, .86);
            --line: rgba(255, 255, 255, .14);
            --line-strong: rgba(255, 255, 255, .24);
            --text-main: #EAF0FF;
            --text-sub: #9BA9C9;
            --text-weak: #64748E;
            --blue: #2E74FF;
            --blue-2: #4C8FFF;
            --cyan: #4FE3C2;
            --amber: #FFB979;
            --coral: #FF6F7D;
            --grad-primary: linear-gradient(135deg, #2E74FF, #4C8FFF);
            --shadow: 0 12px 32px rgba(0, 0, 0, .32);
            --shadow-glow: 0 0 24px rgba(46, 116, 255, .35);
            --radius-sm: 6px;
            --radius-md: 12px;
            --radius-lg: 18px;
            --radius-xl: 24px;
            --space-section: clamp(72px, 9vw, 112px);
        }

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

        html {
            scroll-behavior: smooth;
        }

        body {
            margin: 0;
            background: var(--bg-deep);
            color: var(--text-main);
            font-family: -apple-system, "SF Pro SC", "PingFang SC", "Microsoft YaHei", "Noto Sans CJK SC", "Source Han Sans SC", sans-serif;
            line-height: 1.7;
            min-height: 100vh;
            overflow-x: hidden;
        }

        body::before {
            content: "";
            position: fixed;
            inset: 0;
            z-index: -2;
            pointer-events: none;
            background:
                radial-gradient(circle at 20% 10%, rgba(46, 116, 255, .12), transparent 36%),
                radial-gradient(circle at 92% 20%, rgba(79, 227, 194, .06), transparent 28%),
                var(--bg-deep);
        }

        body::after {
            content: "";
            position: fixed;
            inset: 0;
            z-index: -1;
            pointer-events: none;
            background-image: linear-gradient(rgba(255, 255, 255, .03) 1px, transparent 1px), linear-gradient(90deg, rgba(255, 255, 255, .03) 1px, transparent 1px);
            background-size: 56px 56px;
            mask-image: radial-gradient(circle at center, transparent 10%, #000 80%);
        }

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

        a {
            color: var(--cyan);
            text-decoration: none;
            transition: color .2s ease, background-color .2s ease, border-color .2s ease, transform .2s ease, box-shadow .2s ease;
        }

        a:hover {
            color: #dcfbf4;
        }

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

        ul,
        ol {
            padding-left: 1.4rem;
        }

        li {
            margin-bottom: .35rem;
        }

        .grid-container {
            max-width: 1280px;
            padding-left: 24px;
            padding-right: 24px;
        }

        .glass,
        .side-card,
        .rel-card,
        .no-article-card {
            background: linear-gradient(145deg, rgba(255, 255, 255, .1), rgba(255, 255, 255, .02));
            border: 1px solid rgba(255, 255, 255, .14);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            border-radius: var(--radius-xl);
        }

        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            min-height: 46px;
            padding: 12px 24px;
            border-radius: 999px;
            border: 0;
            font-size: .95rem;
            font-weight: 600;
            cursor: pointer;
            text-align: center;
            transition: all .2s ease;
            white-space: nowrap;
        }

        .btn:active {
            transform: translateY(2px);
        }

        .btn-primary {
            background: linear-gradient(135deg, #2E74FF, #4C8FFF);
            color: #fff;
            box-shadow: 0 0 24px rgba(46, 116, 255, .35);
        }

        .btn-primary:hover {
            color: #fff;
            transform: translateY(-2px);
            box-shadow: 0 0 32px rgba(46, 116, 255, .5);
        }

        .btn-ghost {
            background: rgba(255, 255, 255, .06);
            border: 1px solid rgba(255, 255, 255, .2);
            color: #EAF0FF;
        }

        .btn-ghost:hover {
            background: rgba(255, 255, 255, .12);
            border-color: rgba(255, 255, 255, .34);
            color: #fff;
            transform: translateY(-2px);
        }

        .btn-sm {
            min-height: 38px;
            padding: 8px 18px;
            font-size: .875rem;
        }

        .btn-lg {
            min-height: 54px;
            padding: 14px 34px;
            font-size: 1rem;
        }

        .badge {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-size: .8rem;
            padding: 6px 12px;
            border-radius: 999px;
            background: rgba(255, 255, 255, .08);
            border: 1px solid rgba(255, 255, 255, .14);
            color: var(--text-sub);
            line-height: 1;
            font-weight: 600;
            letter-spacing: .02em;
        }

        .badge-cyan {
            background: rgba(79, 227, 194, .12);
            border-color: rgba(79, 227, 194, .2);
            color: #B8F4EA;
        }

        .badge-blue {
            background: rgba(46, 116, 255, .14);
            border-color: rgba(46, 116, 255, .22);
            color: #B8D0FF;
        }

        .badge-amber {
            background: rgba(255, 185, 121, .1);
            border-color: rgba(255, 185, 121, .2);
            color: #FFD6AE;
        }

        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 100;
            padding: 12px 16px 0;
            pointer-events: none;
        }

        .nav-shell {
            max-width: 1280px;
            margin: 0 auto;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 12px;
            min-height: 64px;
            padding: 8px 14px 8px 20px;
            border-radius: 999px;
            background: rgba(8, 14, 28, .72);
            border: 1px solid rgba(255, 255, 255, .14);
            box-shadow: 0 10px 40px rgba(0, 0, 0, .3);
            backdrop-filter: blur(18px);
            -webkit-backdrop-filter: blur(18px);
            pointer-events: auto;
            overflow: visible;
        }

        .nav-shell::after {
            content: "";
            position: absolute;
            left: 24px;
            right: 24px;
            bottom: -1px;
            height: 1px;
            background: linear-gradient(90deg, transparent, rgba(79, 227, 194, .48), transparent);
            border-radius: 999px;
            pointer-events: none;
        }

        .site-logo {
            display: inline-flex;
            align-items: center;
            gap: 11px;
            flex: 0 0 auto;
            color: var(--text-main);
            font-size: 1.04rem;
            font-weight: 700;
        }

        .site-logo:hover {
            color: #fff;
        }

        .logo-mark {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 36px;
            height: 36px;
            border-radius: 12px;
            background: linear-gradient(160deg, rgba(46, 116, 255, .9), rgba(79, 227, 194, .35));
            border: 1px solid rgba(79, 227, 194, .5);
            box-shadow: 0 0 16px rgba(79, 227, 194, .2);
            color: #fff;
            font-size: .84rem;
            font-weight: 800;
            letter-spacing: .02em;
        }

        .nav-links {
            display: flex;
            align-items: center;
            gap: 4px;
            margin: 0;
            padding: 2px;
            list-style: none;
            flex-wrap: nowrap;
        }

        .nav-links li {
            list-style: none;
            margin: 0;
            padding: 0;
        }

        .nav-links a {
            display: inline-flex;
            align-items: center;
            min-height: 38px;
            padding: 8px 14px;
            border-radius: 999px;
            color: var(--text-sub);
            font-size: .9rem;
            white-space: nowrap;
            transition: all .2s ease;
        }

        .nav-links a:hover {
            color: #fff;
            background: rgba(255, 255, 255, .08);
        }

        .nav-links li.active a {
            background: rgba(79, 227, 194, .14);
            color: #DCFFFA;
            box-shadow: 0 0 0 1px rgba(79, 227, 194, .18);
        }

        .nav-actions {
            display: flex;
            align-items: center;
            gap: 12px;
            flex: 0 0 auto;
        }

        .nav-toggle {
            display: none;
            align-items: center;
            justify-content: center;
            width: 40px;
            height: 40px;
            border-radius: 999px;
            background: rgba(255, 255, 255, .08);
            border: 1px solid rgba(255, 255, 255, .16);
            cursor: pointer;
            flex-direction: column;
            gap: 4px;
        }

        .nav-toggle span {
            display: block;
            width: 17px;
            height: 2px;
            border-radius: 2px;
            background: #EAF0FF;
        }

        .page-main-wrap {
            padding-top: 110px;
        }

        .article-hero {
            position: relative;
            padding: clamp(48px, 8vw, 96px) 0 56px;
            background:
                radial-gradient(ellipse at 30% 30%, rgba(46, 116, 255, .15), transparent 55%),
                linear-gradient(to bottom, rgba(7, 13, 26, .76), rgba(7, 13, 26, .95)),
                url('/assets/images/backpic/back-1.webp') center / cover no-repeat;
            overflow: hidden;
        }

        .article-hero .grid-container {
            max-width: 1100px;
        }

        .breadcrumb {
            display: flex;
            align-items: center;
            flex-wrap: wrap;
            gap: 8px;
            font-size: .86rem;
            color: var(--text-weak);
            margin-bottom: 26px;
        }

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

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

        .breadcrumb .sep {
            color: var(--text-weak);
            opacity: .6;
            line-height: 1;
        }

        .article-head h1 {
            font-size: clamp(1.9rem, 4.6vw, 3.2rem);
            line-height: 1.25;
            letter-spacing: -.01em;
            margin: 0 0 18px;
            font-weight: 700;
            max-width: 900px;
        }

        .article-meta-row {
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            gap: 12px;
            color: var(--text-sub);
            font-size: .88rem;
            margin-top: 14px;
        }

        .article-meta-row .meta-item {
            display: inline-flex;
            align-items: center;
            gap: 7px;
        }

        .article-meta-row i {
            font-size: .8rem;
            color: var(--text-weak);
        }

        .article-section {
            padding: clamp(48px, 7vw, 84px) 0 32px;
        }

        .article-section .grid-x {
            align-items: flex-start;
        }

        .article-cell {
            padding-left: 14px !important;
            padding-right: 22px !important;
        }

        .article-aside {
            padding-left: 18px !important;
            padding-right: 0 !important;
        }

        .article-holder {
            max-width: 100%;
            background: rgba(16, 24, 44, .38);
            border: 1px solid rgba(255, 255, 255, .08);
            border-radius: var(--radius-xl);
            padding: clamp(22px, 4vw, 44px);
        }

        .article-content {
            font-size: 1.05rem;
            line-height: 1.9;
            color: #DCE5F8;
            overflow-wrap: break-word;
        }

        .article-content p {
            margin: 0 0 1.5em;
        }

        .article-content h2 {
            font-size: 1.65rem;
            line-height: 1.35;
            margin: 2.4em 0 .8em;
            padding-top: 12px;
            padding-bottom: 12px;
            border-bottom: 1px solid rgba(255, 255, 255, .1);
            scroll-margin-top: 130px;
        }

        .article-content h3 {
            font-size: 1.25rem;
            line-height: 1.5;
            margin: 2em 0 .6em;
            color: #F0F4FF;
        }

        .article-content h4 {
            font-size: 1.1rem;
            margin: 1.6em 0 .6em;
            color: #EAF0FF;
        }

        .article-content ul,
        .article-content ol {
            margin: 0 0 1.6em;
            padding-left: 1.6rem;
        }

        .article-content li {
            margin-bottom: .55em;
        }

        .article-content blockquote {
            margin: 1.6em 0;
            padding: 18px 22px;
            border-left: 4px solid var(--cyan);
            background: rgba(79, 227, 194, .08);
            border-radius: 0 14px 14px 0;
            color: #C9E9E2;
        }

        .article-content a {
            color: var(--cyan);
            border-bottom: 1px solid rgba(79, 227, 194, .35);
        }

        .article-content a:hover {
            border-bottom-color: var(--cyan);
        }

        .article-content img {
            max-width: 100%;
            height: auto;
            border-radius: 16px;
            margin: 24px auto;
            box-shadow: 0 12px 40px rgba(0, 0, 0, .32);
        }

        .article-content figcaption {
            text-align: center;
            font-size: .84rem;
            color: var(--text-weak);
            margin: -10px 0 24px;
        }

        .article-content pre {
            background: #0B1324;
            border: 1px solid rgba(255, 255, 255, .08);
            border-radius: 16px;
            padding: 20px 22px;
            overflow-x: auto;
            margin: 1.4em 0 1.8em;
            font-size: .88rem;
            line-height: 1.7;
        }

        .article-content pre code {
            background: transparent;
            padding: 0;
            color: #DCE5F8;
            font-family: "SFMono-Regular", Consolas, Menlo, monospace;
            white-space: pre;
        }

        .article-content code {
            font-family: "SFMono-Regular", Consolas, Menlo, monospace;
            background: rgba(255, 255, 255, .08);
            padding: 2px 8px;
            border-radius: 6px;
            font-size: .9em;
            color: #C5D4FF;
        }

        .article-content table {
            width: 100%;
            border-collapse: separate;
            border-spacing: 0;
            border: 1px solid rgba(255, 255, 255, .12);
            border-radius: 14px;
            overflow: hidden;
            margin: 1.6em 0 2em;
            font-size: .9rem;
        }

        .article-content th,
        .article-content td {
            padding: 13px 16px;
            border-bottom: 1px solid rgba(255, 255, 255, .08);
            text-align: left;
        }

        .article-content th {
            background: rgba(255, 255, 255, .06);
            color: #DCE5F8;
            font-weight: 600;
        }

        .article-content tr:last-child td {
            border-bottom: 0;
        }

        .article-content hr {
            border: 0;
            height: 1px;
            background: linear-gradient(90deg, transparent, rgba(255, 255, 255, .18), transparent);
            margin: 2.5em 0;
        }

        .article-bottom-nav {
            display: flex;
            flex-wrap: wrap;
            gap: 14px;
            margin-top: 48px;
            padding-top: 24px;
            border-top: 1px solid rgba(255, 255, 255, .1);
        }

        .no-article-card {
            max-width: 800px;
            margin: 0 auto;
            padding: clamp(48px, 8vw, 88px) 30px;
            text-align: center;
        }

        .no-article-card .empty-icon {
            width: 76px;
            height: 76px;
            border-radius: 24px;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            background: rgba(79, 227, 194, .08);
            border: 1px solid rgba(79, 227, 194, .18);
            font-size: 1.7rem;
            color: var(--cyan);
            margin-bottom: 24px;
        }

        .no-article-card h1 {
            font-size: clamp(1.7rem, 3.5vw, 2.4rem);
            margin-bottom: 14px;
        }

        .no-article-card p {
            color: var(--text-sub);
            max-width: 560px;
            margin-left: auto;
            margin-right: auto;
            margin-bottom: 30px;
        }

        .sidebar-sticky {
            position: sticky;
            top: 104px;
            display: flex;
            flex-direction: column;
            gap: 22px;
        }

        .side-card {
            padding: 24px;
            border-radius: 20px;
        }

        .side-card h3 {
            margin: 0 0 16px;
            font-size: 1rem;
            font-weight: 700;
            color: #fff;
            padding-bottom: 12px;
            border-bottom: 1px solid rgba(255, 255, 255, .1);
            letter-spacing: .02em;
        }

        .toc-list {
            list-style: none;
            margin: 0;
            padding: 0;
        }

        .toc-list li {
            margin: 0 0 2px;
        }

        .toc-list a {
            display: block;
            padding: 8px 10px;
            border-radius: 10px;
            color: var(--text-sub);
            font-size: .9rem;
            line-height: 1.5;
            border-left: 2px solid transparent;
            transition: all .18s ease;
        }

        .toc-list a:hover {
            color: var(--cyan);
            background: rgba(79, 227, 194, .06);
            border-left-color: var(--cyan);
        }

        .side-nav-list {
            list-style: none;
            margin: 0;
            padding: 0;
        }

        .side-nav-list li {
            margin: 0;
        }

        .side-nav-list a {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 10px;
            padding: 10px 12px;
            border-radius: 12px;
            color: var(--text-sub);
            font-size: .9rem;
            transition: all .2s ease;
        }

        .side-nav-list a:hover {
            color: #fff;
            background: rgba(255, 255, 255, .06);
        }

        .side-nav-list a .fa-solid {
            font-size: .72rem;
            color: var(--text-weak);
        }

        .side-card.help-card {
            background: radial-gradient(circle at 80% 10%, rgba(46, 116, 255, .2), transparent 62%), rgba(12, 18, 34, .74);
            border: 1px solid rgba(46, 116, 255, .2);
        }

        .help-card p {
            color: var(--text-sub);
            font-size: .9rem;
            margin: 0 0 20px;
        }

        .related-section {
            padding: 40px 0 30px;
        }

        .related-section .section-heading {
            display: flex;
            align-items: flex-end;
            justify-content: space-between;
            gap: 24px;
            margin-bottom: 32px;
        }

        .related-section h2,
        .newsletter-cta h2 {
            font-size: clamp(1.4rem, 2.8vw, 2rem);
            margin: 0;
            letter-spacing: -.01em;
        }

        .related-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
            margin-top: 0;
        }

        .rel-card {
            border-radius: 20px;
            padding: 0;
            overflow: hidden;
            display: flex;
            flex-direction: column;
            transition: all .22s ease;
            background: linear-gradient(155deg, rgba(255, 255, 255, .1), rgba(255, 255, 255, .02));
            border: 1px solid rgba(255, 255, 255, .14);
        }

        .rel-card:hover {
            transform: translateY(-5px);
            border-color: rgba(79, 227, 194, .35);
            box-shadow: 0 18px 50px rgba(0, 0, 0, .36);
        }

        .rel-cover {
            height: 150px;
            display: flex;
            align-items: center;
            justify-content: center;
            overflow: hidden;
            background: linear-gradient(145deg, #142240, #0B1424);
            border-bottom: 1px solid rgba(255, 255, 255, .06);
        }

        .rel-cover img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }

        .rel-card .card-body {
            padding: 22px;
            flex: 1;
            display: flex;
            flex-direction: column;
            gap: 10px;
        }

        .rel-card h3 {
            font-size: 1.1rem;
            line-height: 1.45;
            margin: 0;
            color: #fff;
        }

        .rel-card p {
            color: var(--text-sub);
            font-size: .89rem;
            line-height: 1.7;
            margin: 0;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }

        .rel-more {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            margin-top: auto;
            font-weight: 600;
            font-size: .88rem;
            color: var(--cyan);
        }

        .newsletter-cta {
            margin: 72px 0 0;
            padding: clamp(56px, 8vw, 96px) 0;
            background:
                radial-gradient(ellipse at 70% 20%, rgba(46, 116, 255, .2), transparent 50%),
                radial-gradient(ellipse at 20% 80%, rgba(79, 227, 194, .08), transparent 44%),
                rgba(7, 13, 26, .5);
            border-top: 1px solid rgba(255, 255, 255, .06);
            border-bottom: 1px solid rgba(255, 255, 255, .06);
        }

        .newsletter-inner {
            max-width: 720px;
            text-align: center;
            margin: 0 auto;
        }

        .newsletter-inner h2 {
            margin-bottom: 14px;
        }

        .newsletter-inner>p {
            color: var(--text-sub);
            margin-bottom: 34px;
            font-size: 1rem;
        }

        .subscribe-form {
            display: flex;
            gap: 12px;
            max-width: 560px;
            margin: 0 auto;
            padding: 6px;
            background: rgba(255, 255, 255, .08);
            border: 1px solid rgba(255, 255, 255, .16);
            border-radius: 999px;
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
        }

        .subscribe-form input[type="email"] {
            flex: 1;
            min-width: 0;
            background: transparent;
            border: 0;
            color: #fff;
            padding: 10px 16px;
            border-radius: 999px;
            font-size: .95rem;
            outline: none;
        }

        .subscribe-form input[type="email"]::placeholder {
            color: var(--text-weak);
        }

        .subscribe-form input[type="email"]:focus {
            box-shadow: none;
            background: rgba(255, 255, 255, .04);
        }

        .subscribe-form .btn {
            border-radius: 999px;
            min-height: 42px;
            padding: 10px 22px;
        }

        .form-tip {
            margin-top: 16px;
            color: var(--text-weak);
            font-size: .8rem;
        }

        .form-success {
            color: var(--cyan);
            background: rgba(79, 227, 194, .1);
            border: 1px solid rgba(79, 227, 194, .15);
            border-radius: 999px;
            padding: 10px 18px;
            margin: 0;
            font-size: .9rem;
        }

        .site-footer {
            background: #060A13;
            padding: 72px 0 26px;
            border-top: 1px solid rgba(255, 255, 255, .06);
            margin-top: 0;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: minmax(0, 2fr) minmax(0, 1fr) minmax(0, 1fr) minmax(0, 1.3fr);
            gap: 44px;
        }

        .footer-brand {
            display: flex;
            align-items: center;
            gap: 12px;
            font-size: 1.15rem;
            color: #fff;
            font-weight: 700;
            margin-bottom: 16px;
        }

        .footer-note {
            color: var(--text-weak);
            font-size: .9rem;
            line-height: 1.8;
            max-width: 360px;
            margin-bottom: 20px;
        }

        .site-footer h4 {
            color: #EAF0FF;
            font-size: .92rem;
            letter-spacing: .03em;
            margin-bottom: 18px;
            font-weight: 600;
        }

        .site-footer ul {
            list-style: none;
            margin: 0;
            padding: 0;
        }

        .site-footer li {
            margin: 0 0 10px;
        }

        .site-footer a {
            color: var(--text-weak);
            font-size: .9rem;
        }

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

        .footer-bottom {
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            justify-content: space-between;
            gap: 14px;
            margin-top: 56px;
            padding-top: 24px;
            border-top: 1px solid rgba(255, 255, 255, .06);
            color: var(--text-weak);
            font-size: .8rem;
        }

        .copyright {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
        }

        .icp {
            display: flex;
            gap: 16px;
        }

        .back-top {
            position: fixed;
            right: 24px;
            bottom: 24px;
            z-index: 80;
            width: 44px;
            height: 44px;
            border-radius: 999px;
            background: rgba(12, 20, 36, .86);
            border: 1px solid rgba(255, 255, 255, .16);
            color: var(--text-sub);
            display: flex;
            align-items: center;
            justify-content: center;
            cursor: pointer;
            transition: all .2s ease;
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
        }

        .back-top:hover {
            color: #fff;
            border-color: var(--cyan);
            transform: translateY(-3px);
            box-shadow: 0 10px 28px rgba(0, 0, 0, .3);
        }

        @media screen and (max-width: 1100px) {
            .nav-links {
                display: none;
            }

            .nav-toggle {
                display: inline-flex;
            }

            .nav-links.nav-open {
                display: flex;
                position: fixed;
                top: 86px;
                right: 16px;
                flex-direction: column;
                align-items: stretch;
                min-width: 225px;
                padding: 12px;
                border-radius: 20px;
                background: rgba(8, 13, 26, .94);
                border: 1px solid rgba(255, 255, 255, .16);
                box-shadow: 0 24px 60px rgba(0, 0, 0, .5);
                backdrop-filter: blur(24px);
                -webkit-backdrop-filter: blur(24px);
                animation: navFade .18s ease;
            }

            .nav-links.nav-open a {
                display: flex;
                padding: 10px 14px;
            }

            .related-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }

        @keyframes navFade {
            from {
                opacity: 0;
                transform: translateY(-10px);
            }
            to {
                opacity: 1;
                transform: translateY(0);
            }
        }

        @media screen and (max-width: 1024px) {
            .article-cell {
                padding-right: 14px !important;
                padding-left: 14px !important;
            }

            .article-aside {
                padding: 40px 14px 0 !important;
            }

            .sidebar-sticky {
                position: static;
                flex-direction: row;
                flex-wrap: wrap;
            }

            .side-card {
                flex: 1;
                min-width: 250px;
            }

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

        @media screen and (max-width: 768px) {
            .grid-container {
                padding-left: 16px;
                padding-right: 16px;
            }

            .page-main-wrap {
                padding-top: 92px;
            }

            .nav-shell {
                padding: 6px 12px 6px 14px;
            }

            .site-logo .logo-text {
                font-size: .96rem;
            }

            .article-section {
                padding-top: 36px;
            }

            .article-holder {
                padding: 22px 18px;
            }

            .article-content {
                font-size: 1rem;
            }

            .article-content h2 {
                font-size: 1.35rem;
            }

            .related-grid {
                grid-template-columns: 1fr;
            }

            .newsletter-cta {
                padding: 56px 0;
            }

            .subscribe-form {
                flex-direction: column;
                border-radius: 20px;
                padding: 8px;
            }

            .subscribe-form input[type="email"] {
                text-align: center;
                border-bottom: 1px solid rgba(255, 255, 255, .1);
                padding-bottom: 12px;
            }

            .subscribe-form .btn {
                width: 100%;
            }

            .footer-grid {
                grid-template-columns: 1fr;
                gap: 30px;
            }

            .footer-bottom {
                flex-direction: column;
                justify-content: flex-start;
            }

            .footer-note {
                max-width: 100%;
            }

            .back-top {
                right: 14px;
                bottom: 14px;
            }
        }

        @media screen and (max-width: 520px) {
            .nav-shell .btn-sm {
                display: none;
            }

            .article-meta-row {
                gap: 8px;
            }

            .article-hero {
                padding-top: 36px;
            }

            .article-bottom-nav .btn {
                width: 100%;
                margin-right: 0;
            }

            .breadcrumb {
                font-size: .8rem;
            }
        }

/* roulang page: category2 */
:root{
  --bg:#070D1A;
  --bg-deep:#050A15;
  --bg-soft:#0B1424;
  --panel:rgba(16,24,44,.72);
  --panel-solid:#0F1A32;
  --line:rgba(255,255,255,.13);
  --line-soft:rgba(255,255,255,.07);
  --text:#EAF0FF;
  --sub:#9BA9C9;
  --weak:#64748E;
  --blue:#2E74FF;
  --blue-light:#4C8FFF;
  --cyan:#4FE3C2;
  --amber:#FFB979;
  --coral:#FF6F7D;
  --grad-btn:linear-gradient(135deg,#2E74FF 0%,#4C8FFF 100%);
  --radius-sm:10px;
  --radius-md:16px;
  --radius-lg:22px;
  --shadow:0 12px 32px rgba(0,0,0,.32);
  --shadow-glow:0 0 22px rgba(46,116,255,.28);
}
*{box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:120px}
body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:-apple-system,BlinkMacSystemFont,"SF Pro SC","PingFang SC","Microsoft YaHei","Noto Sans CJK SC","Source Han Sans SC",sans-serif;
  line-height:1.75;
  -webkit-font-smoothing:antialiased;
}
a{color:inherit}
a,button{transition:all .25s ease}
img{max-width:100%;display:block}
p{margin:0}
h1,h2,h3,h4{
  margin:0;
  color:var(--text);
  font-weight:700;
  line-height:1.3;
}
ul{list-style:none;margin:0;padding:0}
.grid-container{max-width:1280px;padding-left:24px;padding-right:24px}
.skip-link{
  position:fixed;
  left:20px;
  top:-70px;
  z-index:300;
  padding:10px 22px;
  border:1px solid var(--cyan);
  background:var(--bg-soft);
  color:var(--text);
  border-radius:999px;
  font-size:.9rem;
}
.skip-link:focus{top:18px}
a:focus-visible,
button:focus-visible,
.accordion-title:focus-visible{
  outline:2px solid var(--cyan);
  outline-offset:4px;
}
.site-header{
  position:fixed;
  top:0;
  left:0;
  right:0;
  z-index:200;
  padding:12px 20px 0;
  display:flex;
  justify-content:center;
  pointer-events:none;
}
.nav-capsule{
  width:min(1240px,100%);
  pointer-events:auto;
  display:flex;
  align-items:center;
  gap:14px;
  position:relative;
  padding:8px 16px 8px 14px;
  border-radius:999px;
  background:rgba(10,16,30,.78);
  border:1px solid rgba(255,255,255,.13);
  box-shadow:0 14px 36px rgba(0,0,0,.34),inset 0 1px 0 rgba(255,255,255,.07);
  backdrop-filter:blur(18px);
  -webkit-backdrop-filter:blur(18px);
}
.brand{
  display:flex;
  align-items:center;
  gap:10px;
  color:var(--text);
  font-weight:700;
  border-radius:999px;
  white-space:nowrap;
}
.brand:hover{opacity:.9}
.logo-mark{
  width:38px;
  height:38px;
  border-radius:12px;
  display:inline-flex;
  align-items:center;
  justify-content:center;
  background:var(--grad-btn);
  color:#fff;
  font-size:.92rem;
  font-weight:800;
  letter-spacing:.02em;
  box-shadow:0 0 14px rgba(46,116,255,.34);
}
.brand-text{
  font-size:1.05rem;
  letter-spacing:.02em;
}
.nav-links{
  display:flex;
  align-items:center;
  gap:2px;
  margin-left:14px;
}
.nav-links li{list-style:none}
.nav-links a{
  display:flex;
  align-items:center;
  min-height:38px;
  padding:0 13px;
  border-radius:999px;
  color:var(--sub);
  font-size:.93rem;
}
.nav-links a:hover{
  color:#fff;
  background:rgba(255,255,255,.07);
}
.nav-links li.active>a{
  background:rgba(76,143,255,.16);
  color:#fff;
  box-shadow:inset 0 0 0 1px rgba(76,143,255,.42);
}
.nav-toggle{
  display:none;
  width:40px;
  height:40px;
  margin-left:auto;
  border:1px solid rgba(255,255,255,.14);
  background:rgba(255,255,255,.05);
  border-radius:50%;
  position:relative;
  cursor:pointer;
}
.nav-toggle span{
  position:absolute;
  left:11px;
  right:11px;
  height:2px;
  background:var(--text);
  border-radius:2px;
  transition:all .25s ease;
}
.nav-toggle span:first-child{top:14px}
.nav-toggle span:last-child{top:24px}
.nav-toggle[aria-expanded=true] span:first-child{transform:translateY(5px) rotate(45deg)}
.nav-toggle[aria-expanded=true] span:last-child{transform:translateY(-5px) rotate(-45deg)}

.page-hero{
  position:relative;
  overflow:hidden;
  padding:170px 0 110px;
  min-height:640px;
}
.service-hero{
  background-image:
    radial-gradient(circle at 18% 22%,rgba(46,116,255,.25),transparent 42%),
    radial-gradient(circle at 76% 0%,rgba(79,227,194,.08),transparent 42%),
    linear-gradient(180deg,rgba(7,13,26,.86),rgba(7,13,26,.97)),
    url("/assets/images/backpic/back-2.png");
  background-color:var(--bg);
  background-position:center;
  background-size:cover;
  background-repeat:no-repeat;
}
.page-hero:before{
  content:"";
  position:absolute;
  inset:0;
  pointer-events:none;
  background-image:
    linear-gradient(rgba(255,255,255,.03) 1px,transparent 1px),
    linear-gradient(90deg,rgba(255,255,255,.03) 1px,transparent 1px);
  background-size:64px 64px;
  mask-image:linear-gradient(to bottom,#000,transparent 72%);
  -webkit-mask-image:linear-gradient(to bottom,#000,transparent 72%);
}
.hero-copy{position:relative;z-index:2}
.eyebrow{
  display:inline-flex;
  align-items:center;
  gap:10px;
  min-height:32px;
  padding:0 14px;
  border:1px solid rgba(79,227,194,.28);
  background:rgba(79,227,194,.08);
  color:var(--cyan);
  border-radius:999px;
  font-size:.84rem;
  letter-spacing:.04em;
}
.hero-copy h1{
  margin-top:28px;
  font-size:clamp(2.2rem,5vw,3.6rem);
  line-height:1.16;
  text-wrap:balance;
}
.hero-copy .hero-desc{
  margin-top:22px;
  max-width:640px;
  color:var(--sub);
  font-size:1.06rem;
  line-height:1.9;
}
.hero-actions{
  margin-top:34px;
  display:flex;
  flex-wrap:wrap;
  gap:14px;
}
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  min-height:48px;
  padding:0 26px;
  border-radius:999px;
  font-size:.96rem;
  font-weight:600;
  border:1px solid transparent;
  cursor:pointer;
  text-decoration:none;
}
.btn:active{transform:translateY(1px)}
.btn-primary{
  color:#fff;
  background:var(--grad-btn);
  box-shadow:0 10px 28px rgba(46,116,255,.3),var(--shadow);
}
.btn-primary:hover{
  box-shadow:0 14px 34px rgba(46,116,255,.42);
  transform:translateY(-2px);
}
.btn-ghost{
  color:var(--text);
  background:rgba(255,255,255,.04);
  border-color:rgba(255,255,255,.18);
  box-shadow:inset 0 1px 0 rgba(255,255,255,.08);
}
.btn-ghost:hover{
  background:rgba(255,255,255,.1);
  border-color:rgba(255,255,255,.32);
}
.anchor-scroll{
  margin-top:38px;
  display:flex;
  flex-wrap:wrap;
  gap:10px;
}
.anchor-scroll a{
  display:inline-flex;
  align-items:center;
  min-height:36px;
  padding:0 14px;
  border:1px solid var(--line-soft);
  border-radius:999px;
  background:rgba(11,18,34,.5);
  color:var(--sub);
  font-size:.84rem;
}
.anchor-scroll a:hover{
  color:#fff;
  border-color:rgba(79,227,194,.3);
  background:rgba(79,227,194,.06);
  transform:translateY(-1px);
}

.glass-panel{
  border:1px solid var(--line);
  border-radius:20px;
  padding:24px;
  background:linear-gradient(145deg,rgba(255,255,255,.09),rgba(255,255,255,.02));
  box-shadow:var(--shadow),inset 0 1px 0 rgba(255,255,255,.1);
  backdrop-filter:blur(16px);
  -webkit-backdrop-filter:blur(16px);
}
.status-panel{position:relative;z-index:2;max-width:520px;margin-left:auto}
.status-head{
  display:flex;
  align-items:center;
  gap:9px;
  padding-bottom:12px;
  border-bottom:1px solid var(--line-soft);
  color:var(--text);
  font-size:.88rem;
  font-weight:600;
}
.live-dot{
  width:8px;
  height:8px;
  border-radius:50%;
  background:var(--cyan);
  box-shadow:0 0 0 4px rgba(79,227,194,.12),0 0 14px rgba(79,227,194,.55);
}
.status-list{padding:8px 0 0}
.status-line{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:14px;
  padding:15px 0;
  border-bottom:1px dashed var(--line-soft);
}
.status-line:last-child{border-bottom:0}
.status-name{color:var(--sub);font-size:.95rem}
.status-badge{
  display:inline-flex;
  align-items:center;
  gap:7px;
  padding:4px 11px;
  border-radius:999px;
  font-size:.78rem;
}
.status-badge.ok{
  color:var(--cyan);
  background:rgba(79,227,194,.09);
  border:1px solid rgba(79,227,194,.2);
}
.status-badge.ok::before{
  content:"✓";
  font-weight:800;
}
.panel-note{
  margin-top:16px;
  font-size:.82rem;
  color:var(--weak);
  line-height:1.7;
}

.section{padding:106px 0}
.section-alt{
  background:linear-gradient(180deg,rgba(10,17,32,.9),rgba(7,13,26,.98));
}
.section-head{
  margin-bottom:52px;
  align-items:end;
}
.section-eyebrow{
  display:inline-flex;
  align-items:center;
  gap:8px;
  margin-bottom:14px;
  color:var(--cyan);
  font-size:.83rem;
}
.section-eyebrow::before{
  content:"";
  width:24px;
  height:2px;
  background:var(--cyan);
  border-radius:2px;
}
.section-head h2{
  font-size:clamp(1.8rem,3.4vw,2.55rem);
  line-height:1.28;
  text-wrap:balance;
}
.section-desc{
  margin-top:18px;
  color:var(--sub);
  line-height:1.95;
}
.section-note{
  color:var(--weak);
}

.feature-card{
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:0;
  margin-bottom:28px;
  padding:0;
  overflow:hidden;
  border:1px solid var(--line);
  border-radius:var(--radius-lg);
  background:linear-gradient(145deg,rgba(255,255,255,.075),rgba(255,255,255,.015));
  box-shadow:var(--shadow),inset 0 1px 0 rgba(255,255,255,.08);
}
.feature-card:last-child{margin-bottom:0}
.feature-copy{
  display:flex;
  flex-direction:column;
  justify-content:center;
  padding:52px 52px;
}
.feature-copy .feature-tag{
  display:inline-flex;
  width:max-content;
  min-height:28px;
  align-items:center;
  padding:0 12px;
  border-radius:999px;
  color:var(--cyan);
  background:rgba(79,227,194,.09);
  border:1px solid rgba(79,227,194,.18);
  font-size:.8rem;
}
.feature-copy h3{
  margin-top:18px;
  font-size:1.55rem;
}
.feature-copy>p{
  margin-top:16px;
  color:var(--sub);
  line-height:1.9;
}
.feature-points{
  margin-top:20px;
  display:grid;
  gap:11px;
}
.feature-points li{
  display:flex;
  gap:10px;
  color:var(--sub);
  font-size:.94rem;
  line-height:1.7;
}
.feature-points li::before{
  content:"✦";
  margin-top:1px;
  color:var(--cyan);
  font-size:.72rem;
  line-height:1.9;
}
.feature-media{
  position:relative;
  min-height:320px;
  background:
    radial-gradient(circle at 30% 44%,rgba(76,143,255,.22),transparent 46%),
    linear-gradient(145deg,#0B1830,#0B1424);
}
.feature-media img{
  width:100%;
  height:100%;
  min-height:320px;
  object-fit:cover;
  object-position:center;
  position:relative;
  z-index:2;
}
.feature-media::after{
  content:"";
  position:absolute;
  inset:0;
  z-index:1;
  mix-blend-mode:soft-light;
  background-image:
    linear-gradient(rgba(255,255,255,.05) 1px,transparent 1px),
    linear-gradient(90deg,rgba(255,255,255,.05) 1px,transparent 1px);
  background-size:44px 44px;
}
.feature-card--reverse .feature-media{order:-1}

.accordion-wrap,.faq-wrap{
  max-width:970px;
  margin:0 auto;
}
.accordion-theme{
  border:0;
  background:transparent;
  margin-top:8px;
}
.accordion-theme .accordion-item{
  margin-bottom:14px;
  background:linear-gradient(145deg,rgba(255,255,255,.05),rgba(255,255,255,.01));
  border:1px solid var(--line);
  border-radius:var(--radius-md);
  overflow:hidden;
  box-shadow:inset 0 1px 0 rgba(255,255,255,.05);
}
.accordion-theme .accordion-title{
  position:relative;
  display:flex;
  align-items:center;
  gap:14px;
  font-size:1.02rem;
  color:var(--text);
  font-weight:600;
  background:transparent;
  padding:22px 50px 22px 24px;
  border:0;
  border-bottom:1px solid transparent;
  line-height:1.5;
}
.accordion-theme .accordion-title:hover{
  background:rgba(255,255,255,.05);
}
.accordion-theme .accordion-title::before{
  content:"+";
  position:absolute;
  right:22px;
  top:50%;
  transform:translateY(-50%);
  width:26px;
  height:26px;
  display:flex;
  align-items:center;
  justify-content:center;
  color:var(--cyan);
  background:rgba(79,227,194,.1);
  border:1px solid rgba(79,227,194,.2);
  border-radius:50%;
  font-size:1rem;
  line-height:1;
}
.accordion-theme .accordion-item.is-active .accordion-title{
  border-bottom-color:var(--line-soft);
}
.accordion-theme .accordion-item.is-active .accordion-title::before{
  content:"−";
}
.accordion-theme .accordion-content{
  background:transparent;
  color:var(--sub);
  border:0;
  padding:22px 24px;
  line-height:1.9;
  font-size:.96rem;
  box-shadow:none;
}
.accordion-theme .accordion-content p + p{margin-top:12px}
.accordion-theme .accordion-content a{
  color:var(--cyan);
  border-bottom:1px solid rgba(79,227,194,.25);
}

.status-area{position:relative}
.status-card{overflow:hidden}
.status-card .status-inner{
  display:flex;
  align-items:center;
  gap:16px;
  padding:24px;
  background:linear-gradient(145deg,rgba(255,255,255,.06),rgba(255,255,255,.01));
  border:1px solid var(--line);
  border-radius:20px;
  box-shadow:inset 0 1px 0 rgba(255,255,255,.08);
  height:100%;
}
.status-icon{
  width:50px;
  height:50px;
  flex:0 0 50px;
  display:flex;
  align-items:center;
  justify-content:center;
  border-radius:15px;
  color:var(--cyan);
  background:rgba(79,227,194,.1);
  border:1px solid rgba(79,227,194,.2);
  font-weight:800;
}
.status-copy strong{
  display:block;
  color:var(--text);
  font-size:1.04rem;
  margin-bottom:3px;
}
.status-copy span{
  color:var(--sub);
  font-size:.88rem;
}
.status-matrix{display:grid;grid-template-columns:1fr 1fr;gap:14px}
.status-disclaimer{
  margin-top:20px;
  padding:12px 16px;
  border-left:3px solid rgba(255,217,145,.6);
  background:rgba(255,185,121,.07);
  color:var(--weak);
  font-size:.85rem;
  border-radius:8px;
}
.cta-card{
  position:relative;
  overflow:hidden;
  text-align:center;
  padding:76px 40px;
  border:1px solid rgba(76,143,255,.24);
  border-radius:28px;
  background:
    radial-gradient(circle at 50% 0%,rgba(46,116,255,.24),transparent 48%),
    radial-gradient(circle at 80% 95%,rgba(79,227,194,.08),transparent 42%),
    linear-gradient(145deg,#0B1830,#0B1424);
  box-shadow:0 30px 80px rgba(0,0,0,.34),inset 0 1px 0 rgba(255,255,255,.1);
}
.cta-card h2{
  font-size:clamp(1.8rem,3.6vw,2.7rem);
  margin-top:18px;
}
.cta-card p{
  max-width:650px;
  margin:24px auto 0;
  color:var(--sub);
  font-size:1rem;
}
.cta-actions{
  margin-top:34px;
  display:flex;
  justify-content:center;
  flex-wrap:wrap;
  gap:14px;
}

.site-footer{
  background:var(--bg-deep);
  border-top:1px solid rgba(255,255,255,.06);
  padding-top:64px;
}
.footer-grid{
  display:grid;
  grid-template-columns:2fr 1fr 1fr 1.2fr;
  gap:48px;
}
.footer-brand{
  display:flex;
  align-items:center;
  gap:10px;
  color:var(--text);
  font-weight:700;
  font-size:1.08rem;
}
.footer-brand .logo-mark{
  width:38px;
  height:38px;
  font-size:.96rem;
}
.footer-note{
  margin-top:20px;
  color:var(--weak);
  font-size:.9rem;
  line-height:1.9;
  max-width:400px;
}
.site-footer h4{
  font-size:.98rem;
  margin-bottom:18px;
  color:var(--text);
}
.site-footer ul li{margin-bottom:10px}
.site-footer ul a{
  color:var(--sub);
  font-size:.9rem;
}
.site-footer ul a:hover{
  color:var(--cyan);
}
.footer-note-dot{color:var(--weak);font-size:.9rem}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.07);
  margin-top:54px;
  padding:24px 0;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:14px;
  flex-wrap:wrap;
}
.footer-bottom .copyright,
.footer-bottom .icp{
  color:var(--weak);
  font-size:.86rem;
}
.footer-bottom .icp span{
  display:inline-block;
  margin-right:18px;
  color:var(--weak);
}

@media (max-width:1024px){
  .section{padding:86px 0}
  .footer-grid{grid-template-columns:1fr 1fr;gap:38px}
  .feature-copy{padding:42px 34px}
  .feature-card{grid-template-columns:1fr}
  .feature-card--reverse .feature-media{order:0}
  .status-panel{margin:40px auto 0;max-width:640px}
  .status-matrix{grid-template-columns:1fr 1fr}
  .anchor-scroll{margin-top:28px}
}
@media (max-width:900px){
  .site-header{padding:10px 14px 0}
  .nav-capsule{max-width:100%;padding:7px 12px}
  .brand-text{font-size:.96rem}
  .nav-toggle{display:inline-flex}
  .nav-links{
    position:absolute;
    top:calc(100% + 12px);
    right:0;
    width:min(380px,calc(100vw - 28px));
    margin:0;
    padding:14px;
    flex-direction:column;
    align-items:stretch;
    gap:4px;
    background:rgba(6,11,22,.96);
    border:1px solid var(--line);
    border-radius:24px;
    box-shadow:0 18px 48px rgba(0,0,0,.42),inset 0 1px 0 rgba(255,255,255,.05);
    opacity:0;
    visibility:hidden;
    transform:translateY(-10px);
    transition:all .25s ease;
  }
  .nav-links.open{
    opacity:1;
    visibility:visible;
    transform:translateY(0);
  }
  .nav-links li{width:100%}
  .nav-links a{
    min-height:44px;
    padding:0 16px;
    font-size:.95rem;
  }
}
@media (max-width:768px){
  .grid-container{padding-left:18px;padding-right:18px}
  .page-hero{padding:150px 0 72px;min-height:auto}
  .hero-copy h1{font-size:clamp(2rem,8vw,2.7rem)}
  .hero-copy .hero-desc{font-size:1rem}
  .section{padding:64px 0}
  .section-head{margin-bottom:34px}
  .status-matrix{grid-template-columns:1fr}
  .feature-media,.feature-media img{min-height:260px}
  .cta-card{padding:52px 24px}
  .cta-card h2{font-size:1.7rem}
  .accordion-theme .accordion-title{padding:20px 48px 20px 18px}
  .accordion-theme .accordion-content{padding:18px}
}
@media (max-width:520px){
  .logo-mark{width:34px;height:34px;border-radius:11px}
  .brand-text{font-size:.88rem}
  .page-hero{padding:132px 0 60px}
  .hero-actions .btn{width:auto}
  .feature-copy{padding:28px 22px}
  .feature-copy h3{font-size:1.35rem}
  .footer-grid{grid-template-columns:1fr;gap:32px}
  .footer-note{max-width:100%}
  .footer-bottom{flex-direction:column;align-items:flex-start}
  .footer-bottom .icp span{margin-right:8px}
}

/* roulang page: category3 */
:root{
  --bg:#070D1A;
  --bg2:#0B1424;
  --panel:rgba(16,24,44,.72);
  --glass-border:rgba(255,255,255,.14);
  --glass-highlight:inset 0 1px 0 rgba(255,255,255,.18);
  --blue:#2E74FF;
  --blue2:#4C8FFF;
  --cyan:#4FE3C2;
  --amber:#FFB979;
  --coral:#FF6F7D;
  --text:#EAF0FF;
  --sub:#9BA9C9;
  --weak:#64748E;
  --radius-sm:10px;
  --radius-md:16px;
  --radius-lg:22px;
  --shadow:0 18px 48px rgba(0,0,0,.34);
  --shadow-soft:0 12px 30px rgba(0,0,0,.22);
  --font:-apple-system,BlinkMacSystemFont,"SF Pro SC","PingFang SC","Microsoft YaHei","Noto Sans CJK SC","Source Han Sans SC",sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  font-family:var(--font);
  background:
    radial-gradient(circle at 82% 8%,rgba(46,116,255,.12),transparent 30%),
    radial-gradient(circle at 18% 30%,rgba(79,227,194,.05),transparent 24%),
    var(--bg);
  color:var(--text);
  line-height:1.75;
  font-size:16px;
  min-height:100vh;
}
a{color:var(--cyan);text-decoration:none}
a:hover{color:#b7ffe9}
h1,h2,h3,h4{font-weight:700;line-height:1.3;color:var(--text);margin:0 0 1rem}
h1{font-size:clamp(2rem,5vw,3.4rem);letter-spacing:.01em}
h2{font-size:clamp(1.6rem,2.8vw,2.15rem)}
h3{font-size:1.16rem}
p{margin:0 0 1.1rem}
ul,ol{margin:0 0 1rem;padding-left:1.25rem}
li{margin-bottom:.45rem}
img{max-width:100%;height:auto;display:block}
button{font-family:inherit;cursor:pointer;border:none;background:none;color:inherit}
:focus-visible{outline:2px solid var(--cyan);outline-offset:3px;border-radius:6px}
.container{max-width:1240px;margin-inline:auto;padding-inline:clamp(18px,4vw,40px)}
.sec{padding:clamp(56px,7.5vw,100px) 0;position:relative}
.sec-alt{background:rgba(255,255,255,.02)}
.sec-head{margin:0 auto 48px;max-width:880px}
.sec-head.center{text-align:center}
.sec-head p{color:var(--sub);font-size:1.04rem}
.microlabel{
  display:inline-flex;align-items:center;gap:8px;
  color:var(--cyan);font-size:.8rem;font-weight:600;letter-spacing:.05em;
  background:rgba(79,227,194,.1);border:1px solid rgba(79,227,194,.25);
  padding:5px 14px;border-radius:999px;margin-bottom:14px;
}
.microlabel::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--cyan);box-shadow:0 0 10px var(--cyan)}
/* ===== 顶部悬浮导航 ===== */
.site-header{
  position:fixed;top:12px;z-index:220;
  left:50%;transform:translateX(-50%);
  width:calc(100% - 24px);max-width:1240px;
  background:rgba(9,15,29,.82);
  backdrop-filter:blur(18px);
  -webkit-backdrop-filter:blur(18px);
  border:1px solid var(--glass-border);
  box-shadow:0 18px 46px rgba(0,0,0,.42),inset 0 1px 0 rgba(255,255,255,.08);
  border-radius:999px;
  overflow:visible;
}
.header-inner{
  display:flex;align-items:center;justify-content:space-between;gap:18px;
  padding:8px 10px 8px 20px;
  border-radius:inherit;
}
.brand{
  display:inline-flex;align-items:center;gap:11px;
  font-size:1.06rem;font-weight:700;color:var(--text);letter-spacing:.01em;
  padding:6px 0;
}
.brand-mark{
  display:inline-flex;align-items:center;justify-content:center;
  width:42px;height:42px;flex:0 0 auto;
  border-radius:14px;font-size:.95rem;font-weight:800;color:#fff;
  background:linear-gradient(135deg,#1e5df0,#3d8bff);
  box-shadow:0 6px 20px rgba(46,116,255,.4),inset 0 1px 0 rgba(255,255,255,.28);
}
.brand-text white-space:nowrap;
.brand-text em{font-style:normal;color:var(--cyan)}
.nav-links{
  display:flex;align-items:center;gap:2px;list-style:none;margin:0;padding:4px;
  background:rgba(255,255,255,.045);border-radius:999px;
}
.nav-links li{margin:0}
.nav-links a{
  display:block;color:var(--sub);font-size:.9rem;font-weight:500;
  padding:8px 14px;border-radius:999px;transition:all .2s ease;white-space:nowrap;
}
.nav-links a:hover{color:var(--text);background:rgba(255,255,255,.08)}
.nav-links a:active{transform:translateY(1px)}
.nav-links li.active a{
  color:#fff;background:linear-gradient(135deg,rgba(46,116,255,.52),rgba(76,143,255,.36));
  box-shadow:0 0 0 1px rgba(120,165,255,.36),0 8px 18px rgba(46,116,255,.22),inset 0 1px 0 rgba(255,255,255,.16);
  text-shadow:0 1px 6px rgba(0,0,0,.18);
}
.nav-toggle{
  display:none;width:44px;height:44px;border-radius:14px;flex-direction:column;
  align-items:center;justify-content:center;gap:5px;
  background:rgba(255,255,255,.06);border:1px solid var(--glass-border);
  transition:all .2s;
}
.nav-toggle:hover{background:rgba(255,255,255,.12)}
.nav-toggle span{width:18px;height:2px;border-radius:2px;background:var(--text);transition:all .2s}
.nav-toggle.is-open span:nth-child(1){transform:translateY(8px) rotate(45deg)}
.nav-toggle.is-open span:nth-child(2){opacity:0}
.nav-toggle.is-open span:nth-child(3){transform:translateY(-6px) rotate(-45deg)}
/* ===== 页头banner ===== */
.page-banner{
  position:relative;padding:160px 0 80px;overflow:hidden;text-align:center;
  background-color:var(--bg2);
  background-image:
    linear-gradient(rgba(255,255,255,.025) 1px,transparent 1px),
    linear-gradient(90deg,rgba(255,255,255,.025) 1px,transparent 1px);
  background-size:46px 46px;
}
.page-banner::before{
  content:"";position:absolute;inset:0;z-index:0;
  background:linear-gradient(180deg,rgba(7,13,26,.6),rgba(9,16,33,.85) 30%,var(--bg) 100%);
}
.page-hero-bg{
  position:absolute;inset:0;z-index:-1;background-size:cover;background-position:center 35%;
  opacity:.42;
}
.page-banner .container{position:relative;z-index:2}
.crumb-pill{
  display:inline-flex;align-items:center;gap:8px;font-size:.82rem;color:var(--weak);
  background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.1);
  padding:6px 14px;border-radius:999px;backdrop-filter:blur(8px);margin-bottom:22px;
}
.crumb-pill a{color:var(--sub);transition:color .2s}
.crumb-pill a:hover{color:var(--cyan)}
.crumb-pill i{font-style:normal;color:var(--weak);opacity:.6}
.eyebrow{padding:6px 0;color:var(--cyan);font-size:.82rem;letter-spacing:.12em;text-transform:uppercase;margin:12px 0}
.eyebrow-dot{display:inline-block;width:8px;height:8px;border-radius:50%;background:var(--cyan);box-shadow:0 0 14px var(--cyan);margin-right:8px}
.page-banner h1{margin:12px auto 18px;max-width:1020px}
.banner-lead{max-width:760px;margin:0 auto 34px;color:var(--sub);font-size:1.08rem}
.banner-actions,.cta-actions,.hero-actions{display:flex;flex-wrap:wrap;justify-content:center;gap:16px}
/* ===== 按钮 ===== */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:10px;
  font-size:.96rem;font-weight:600;border-radius:14px;padding:13px 26px;
  transition:transform .2s,box-shadow .2s,background .2s,border-color .2s;
  border:1px solid transparent;line-height:1;text-align:center;
}
.btn:hover{transform:translateY(-2px)}
.btn:active{transform:translateY(1px)}
.btn-primary{
  color:#fff;
  background:linear-gradient(135deg,var(--blue),var(--blue2));
  box-shadow:0 8px 24px rgba(46,116,255,.35),0 0 0 1px rgba(122,151,255,.24);
}
.btn-primary:hover{box-shadow:0 14px 32px rgba(46,116,255,.46),0 0 0 1px rgba(122,151,255,.4)}
.btn-ghost{
  color:var(--text);background:rgba(255,255,255,.06);border-color:rgba(255,255,255,.16);
  backdrop-filter:blur(8px);
}
.btn-ghost:hover{border-color:rgba(255,255,255,.42);background:rgba(255,255,255,.12)}
/* ===== 三件事 ===== */
.sec-basics{background:transparent;padding-top:0}
.basic-card{
  height:100%;position:relative;overflow:hidden;
  border:1px solid var(--glass-border);border-radius:var(--radius-lg);
  background:linear-gradient(145deg,rgba(255,255,255,.07),rgba(255,255,255,.015));
  box-shadow:var(--shadow-soft),var(--glass-highlight);
  padding:34px 28px 30px;
  margin:14px 0;
  transition:border-color .25s,transform .25s,box-shadow .25s;
}
.basic-card::before{
  content:"";position:absolute;left:28px;top:0;width:34px;height:3px;
  background:linear-gradient(90deg,var(--blue),var(--cyan));border-radius:0 0 6px 6px;opacity:.8;
}
.basic-card:hover{transform:translateY(-5px);border-color:rgba(120,180,255,.45);box-shadow:0 24px 46px rgba(0,0,0,.42),var(--glass-highlight)}
.basic-card:hover::before{opacity:1;box-shadow:0 0 14px var(--cyan)}
.numidx{
  font-size:1.9rem;font-weight:800;color:#c9dcff;line-height:1;display:block;
  margin-bottom:22px;font-variant-numeric:tabular-nums;opacity:.82;
}
.basic-card h3{font-size:1.22rem;margin-bottom:10px}
.basic-card p{color:var(--sub);font-size:.95rem;margin:0}
/* ===== 合规清单 ===== */
.sec-shadow{background:linear-gradient(180deg,rgba(255,255,255,.015),rgba(255,255,255,.035) 50%,rgba(255,255,255,.015))}
.sec-title-split{display:flex;flex-direction:column;gap:16px}
.sec-title-split h2{margin-bottom:12px}
.compliance-list{margin:0;padding:0;list-style:none;display:flex;flex-direction:column;gap:14px}
.compliance-item{
  display:flex;gap:18px;align-items:flex-start;
  padding:24px;border-radius:20px;
  background:rgba(10,19,38,.55);border:1px solid rgba(255,255,255,.1);
  transition:all .2s;
}
.compliance-item:hover{border-color:rgba(79,227,194,.35);background:rgba(10,22,43,.72)}
.compliance-ic{
  flex:0 0 42px;width:42px;height:42px;border-radius:14px;
  display:inline-flex;align-items:center;justify-content:center;
  font-size:1.2rem;color:var(--cyan);background:rgba(79,227,194,.1);
  border:1px solid rgba(79,227,194,.3);
}
.compliance-item h3{margin-bottom:4px}
.compliance-item p{color:var(--sub);font-size:.96rem;margin:0}
/* ===== 身份验证 ===== */
.sec-identity{background:rgba(255,255,255,.018)}
.cover-figure{
  margin:0;padding:0;border:1px solid rgba(255,255,255,.16);
  border-radius:26px;overflow:hidden;background:rgba(255,255,255,.05);
  box-shadow:0 24px 60px rgba(0,0,0,.4);position:relative;
}
.cover-figure img{width:100%;height:100%;object-fit:cover;aspect-ratio:4/4.4}
.cover-figure::after{
  content:"";position:absolute;inset:0;pointer-events:none;
  border-radius:26px;box-shadow:inset 0 1px 0 rgba(255,255,255,.25);
}
.identity-list{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:18px}
.identity-step{
  position:relative;gap:18px;display:flex;
  border:1px solid rgba(255,255,255,.09);
  background:rgba(255,255,255,.035);border-radius:18px;padding:20px 22px;
}
.identity-step:hover{border-color:rgba(79,227,194,.35)}
.step-num{
  flex:0 0 38px;width:38px;height:38px;border-radius:12px;
  display:flex;align-items:center;justify-content:center;
  color:#fff;font-weight:700;font-variant-numeric:tabular-nums;
  background:linear-gradient(135deg,rgba(46,116,255,.9),rgba(79,227,194,.45));
  box-shadow:0 4px 14px rgba(46,116,255,.4);
}
.identity-step h3{margin:0 0 4px;font-size:1.08rem}
.identity-step p{color:var(--sub);font-size:.95rem;margin:0}
/* ===== 数据边界 ===== */
.data-legend{
  border:1px solid rgba(255,255,255,.1);border-radius:22px;padding:30px;
  background:linear-gradient(145deg,rgba(255,255,255,.06),rgba(255,255,255,.015));
  box-shadow:var(--glass-highlight);
  height:100%;
}
.data-legend h3{display:flex;align-items:center;gap:10px}
.legend-ic{width:30px;height:30px;border-radius:9px;display:inline-flex;align-items:center;justify-content:center}
.list-legend{list-style:none;padding:0;margin:24px 0 0;display:flex;flex-direction:column;gap:14px}
.legend-row{display:flex;gap:10px;align-items:flex-start;color:var(--sub)}
.legend-row .dot{
  margin-top:9px;flex:0 0 7px;width:7px;height:7px;border-radius:50%;
  background:var(--cyan);box-shadow:0 0 8px currentColor;
}
.outline-list .dot{background:var(--amber)}
.data-legend p{color:var(--sub);font-size:.96rem}
/* ===== 浏览器建议 ===== */
.sec-advice{
  background:
    radial-gradient(circle at 12% 24%,rgba(46,116,255,.09),transparent 28%),
    radial-gradient(circle at 90% 70%,rgba(79,227,194,.06),transparent 24%),
    rgba(255,255,255,.02);
}
.advice-media{border-radius:24px;padding:10px;background:rgba(255,255,255,.06);border:1px solid var(--glass-border)}
.advice-cover{width:100%;border-radius:18px;object-fit:cover;aspect-ratio:16/11}
.advice-list{list-style:none;padding:0;margin:18px 0 0;display:grid;grid-template-columns:1fr;gap:12px}
.advice-list li{
  background:rgba(10,20,40,.62);border:1px solid rgba(255,255,255,.1);
  padding:16px 18px;border-radius:14px;color:var(--sub);
  transition:all .2s;
}
.advice-list li:hover{border-color:rgba(255,180,120,.3);transform:translateX(4px)}
.advice-list b{color:var(--text);font-weight:650}
/* ===== FAQ ===== */
.faq-wrap{max-width:920px;margin:0 auto}
.faq-accordion{
  border:none;background:transparent;margin:0;
}
.faq-accordion,.faq-accordion *{box-sizing:border-box}
.accordion-item{
  background:rgba(12,22,43,.66);
  border:1px solid rgba(255,255,255,.1) !important;
  border-radius:18px !important;
  margin-bottom:14px;
  overflow:hidden;
  transition:border-color .2s,background .2s;
}
.accordion-item.is-active{border-color:rgba(79,227,194,.35) !important;background:rgba(12,26,52,.74)}
.accordion-title{
  position:relative;
  display:flex !important;justify-content:space-between;align-items:center;
  padding:20px 22px !important;color:var(--text) !important;
  font-weight:600;font-size:1rem !important;
  background:transparent !important;
}
.accordion-title:hover{background:rgba(255,255,255,.05) !important}
.accordion-title::after{
  content:"";
  flex:0 0 10px;width:10px;height:10px;
  border-right:2px solid var(--cyan);border-bottom:2px solid var(--cyan);
  transform:rotate(-45deg);transition:transform .25s,opacity .25s;margin-left:16px;
  border-radius:1px;
}
.accordion-item.is-active .accordion-title::after{transform:rotate(45deg);opacity:.8}
.accordion-content{
  color:var(--sub) !important;
  font-size:.98rem;padding:.3rem 1.4rem 1.4rem !important;
  line-height:1.85;
  background:transparent !important;
}
/* ===== CTA ===== */
.cta-panel{
  position:relative;overflow:hidden;
  text-align:center;
  padding:clamp(46px,6vw,84px) clamp(20px,5vw,64px);
  border:1px solid rgba(140,170,255,.24);
  border-radius:30px;
  background:linear-gradient(145deg,rgba(19,34,66,.72),rgba(10,20,42,.88));
  box-shadow:var(--shadow),inset 0 1px 0 rgba(255,255,255,.16);
}
.cta-panel::before{
  content:"";position:absolute;left:50%;top:-3px;transform:translateX(-50%);
  width:220px;height:3px;background:linear-gradient(90deg,transparent,var(--cyan),transparent);
  border-radius:3px;
}
.cta-config{position:absolute;inset:0;pointer-events:none;
  background:radial-gradient(circle at 50% 120%,rgba(46,116,255,.26),transparent 50%);
}
.cta-panel h2{margin:0 0 12px}
.cta-panel p{color:var(--sub);max-width:610px;margin:0 auto 28px}
/* ===== 页脚 ===== */
.site-footer{
  background:#030812;color:var(--sub);
  border-top:1px solid rgba(255,255,255,.07);padding:64px 0 28px;
  margin-top:20px;
}
.footer-grid{
  display:grid;grid-template-columns:1.5fr .8fr .8fr 1.1fr;gap:40px;
}
.footer-brand{display:flex;align-items:center;gap:12px;font-weight:700;color:var(--text);font-size:1.2rem}
.footer-note{max-width:420px;color:var(--weak);font-size:.92rem;margin-top:18px}
.site-footer h4{font-size:.95rem;color:#d7e4ff;margin:0 0 16px;letter-spacing:.04em}
.site-footer ul{list-style:none;margin:0;padding:0}
.site-footer li{margin-bottom:12px;font-size:.92rem}
.site-footer a{color:var(--sub);font-size:.92rem;transition:color .2s,padding-left .2s}
.site-footer a:hover{color:var(--cyan);padding-left:3px}
.footer-bottom{
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:14px;
  border-top:1px solid rgba(255,255,255,.07);padding-top:24px;margin-top:42px;
  font-size:.86rem;color:var(--weak);
}
.copyright span{color:#8494c2;font-variant-numeric:tabular-nums}
.icp{display:flex;gap:16px}
/* ===== 响应式 ===== */
@media (max-width:1024px){
  .footer-grid{grid-template-columns:1fr 1fr;gap:34px}
}
@media (max-width:900px){
  body{font-size:15px}
  .site-header{border-radius:22px;width:calc(100% - 20px);top:10px}
  .header-inner{padding:8px 10px 8px 16px;flex-wrap:wrap}
  .brand{font-size:1rem}
  .brand-mark{width:38px;height:38px;font-size:.86rem}
  .nav-toggle{display:inline-flex}
  .nav-links{
    display:none;order:10;width:100%;flex-direction:column;align-items:stretch;
    background:none;padding:6px 4px 8px;
  }
  .nav-links.open{display:flex}
  .nav-links li{width:100%}
  .nav-links a{padding:13px 18px;text-align:left;font-size:.96rem}
  .nav-links li.active a{background:rgba(46,116,255,.22);box-shadow:none}
  .banner-actions,.cta-actions,.hero-actions{flex-direction:column;align-items:stretch}
  .btn{width:100%;justify-content:center}
  .sec{padding:62px 0}
}
@media (max-width:640px){
  .page-banner{padding:132px 0 54px}
  .footer-grid{grid-template-columns:1fr;gap:30px}
  .crumb-pill{font-size:.76rem}
  .identity-step,.compliance-item{padding:16px}
  .identity-step{flex-wrap:wrap}
  .compliance-item{gap:12px}
  .compliance-ic{width:38px;height:38px;flex-basis:38px}
  .footer-bottom{flex-direction:column;align-items:flex-start}
}

/* roulang page: category4 */
.faq-accordion .accordion-content{display:block!important}.nav-links{display:flex!important}.nav-toggle{display:none!important}

:root {
      --font: -apple-system, BlinkMacSystemFont, "SF Pro SC", "PingFang SC", "Microsoft YaHei", "Noto Sans CJK SC", "Source Han Sans SC", sans-serif;
      --bg: #070D1A;
      --bg-deep: #04070F;
      --panel: rgba(16, 24, 44, 0.72);
      --ink: #EAF0FF;
      --muted: #9BA9C9;
      --weak: #64748E;
      --line: rgba(255, 255, 255, 0.14);
      --line-strong: rgba(255, 255, 255, 0.24);
      --cyan: #4FE3C2;
      --blue: #2E74FF;
      --blue-2: #4C8FFF;
      --blue-soft: rgba(46, 116, 255, 0.16);
      --amber: #FFB979;
      --coral: #FF6F7D;
      --r-xl: 24px;
      --r-lg: 20px;
      --r-md: 14px;
      --r-sm: 10px;
      --shadow: 0 18px 50px rgba(0, 0, 0, 0.36);
      --shadow-lift: 0 28px 80px rgba(0, 0, 0, 0.48);
      --glow: 0 0 28px rgba(46, 116, 255, 0.35);
    }

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

    html {
      scroll-behavior: smooth;
      scroll-padding-top: 130px;
    }

    body {
      margin: 0;
      font-family: var(--font);
      font-size: 16px;
      line-height: 1.75;
      color: var(--ink);
      background:
        radial-gradient(1100px 440px at 12% -4%, rgba(46, 116, 255, 0.14), transparent 62%),
        radial-gradient(900px 440px at 92% 6%, rgba(79, 227, 194, 0.08), transparent 55%),
        var(--bg);
      min-height: 100vh;
      -webkit-font-smoothing: antialiased;
      text-rendering: optimizeLegibility;
    }

    body::before {
      content: "";
      position: fixed;
      inset: 0;
      z-index: 0;
      pointer-events: none;
      opacity: 0.4;
      background-image: radial-gradient(rgba(255, 255, 255, 0.045) 1px, transparent 1.2px);
      background-size: 34px 34px;
    }

    .site-header,
    .site-main,
    .site-footer {
      position: relative;
      z-index: 1;
    }

    h1,
    h2,
    h3,
    h4,
    p,
    ul,
    figure {
      margin: 0;
      padding: 0;
    }

    ul {
      list-style: none;
    }

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

    a {
      color: inherit;
      text-decoration: none;
      transition: color 0.25s ease, background 0.25s ease, border-color 0.25s ease, box-shadow 0.25s ease, transform 0.25s ease;
    }

    button,
    input {
      font: inherit;
    }

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

    ::selection {
      background: rgba(46, 116, 255, 0.7);
      color: #fff;
    }

    .grid-container {
      max-width: 1280px;
    }

    /* 顶部悬浮胶囊导航 */
    .site-header {
      position: fixed;
      top: 16px;
      left: 0;
      right: 0;
      padding: 0 20px;
      z-index: 100;
    }

    .navbar {
      max-width: 1260px;
      margin: 0 auto;
      min-height: 66px;
      padding: 0 12px 0 10px;
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 14px;
      border-radius: 999px;
      background: rgba(8, 13, 25, 0.84);
      border: 1px solid var(--line);
      box-shadow: 0 16px 40px rgba(0, 0, 0, 0.4), inset 0 1px 0 rgba(255, 255, 255, 0.08);
      backdrop-filter: blur(18px);
      -webkit-backdrop-filter: blur(18px);
    }

    .logo {
      display: inline-flex;
      align-items: center;
      gap: 10px;
      flex: 0 0 auto;
      min-width: 0;
      border-radius: 999px;
      padding: 4px 10px 4px 4px;
    }

    .logo-mark {
      width: 42px;
      height: 42px;
      border-radius: 50%;
      display: inline-flex;
      align-items: center;
      justify-content: center;
      font-weight: 800;
      font-size: 1rem;
      color: #fff;
      letter-spacing: 0.02em;
      background: linear-gradient(135deg, #1C58E0, #3B82F6);
      box-shadow: var(--glow);
      border: 1px solid rgba(255, 255, 255, 0.18);
    }

    .logo-text {
      font-size: 1.08rem;
      font-weight: 700;
      color: var(--ink);
      white-space: nowrap;
    }

    .nav-links {
      display: flex;
      align-items: center;
      gap: 4px;
      margin: 0;
      padding: 0;
    }

    .nav-links li {
      line-height: 1;
    }

    .nav-links a {
      display: inline-flex;
      align-items: center;
      min-height: 42px;
      padding: 0 14px;
      border-radius: 999px;
      font-size: 0.94rem;
      font-weight: 500;
      color: var(--muted);
      border: 1px solid transparent;
      white-space: nowrap;
    }

    .nav-links a:hover,
    .nav-links a:focus-visible {
      color: #fff;
      background: rgba(255, 255, 255, 0.07);
      border-color: rgba(255, 255, 255, 0.1);
    }

    .nav-links li.active a {
      color: #fff;
      background: linear-gradient(135deg, rgba(46, 116, 255, 0.28), rgba(79, 227, 194, 0.12));
      border-color: rgba(79, 227, 194, 0.18);
      box-shadow: 0 0 18px rgba(46, 116, 255, 0.14);
    }

    .nav-toggle {
      display: none;
      width: 42px;
      height: 42px;
      align-items: center;
      justify-content: center;
      color: var(--ink);
      font-size: 1.15rem;
      background: rgba(255, 255, 255, 0.07);
      border: 1px solid var(--line);
      border-radius: 14px;
      cursor: pointer;
      transition: background 0.25s ease, border-color 0.25s ease;
    }

    .nav-toggle:hover {
      background: rgba(255, 255, 255, 0.12);
      border-color: rgba(255, 255, 255, 0.24);
    }

    /* 首页 / 内页通用按钮 */
    .btn {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      gap: 9px;
      min-height: 48px;
      padding: 12px 22px;
      border-radius: 999px;
      font-size: 1rem;
      font-weight: 600;
      line-height: 1.2;
      border: 1px solid transparent;
      cursor: pointer;
      text-align: center;
      transition: transform 0.2s ease, box-shadow 0.2s ease, background 0.2s ease, border-color 0.2s ease;
    }

    .btn-primary {
      background: linear-gradient(135deg, #1C58E0, #3B82F6);
      color: #fff;
      border-color: rgba(255, 255, 255, 0.16);
      box-shadow: 0 0 28px rgba(46, 116, 255, 0.3);
    }

    .btn-primary:hover {
      transform: translateY(-2px);
      color: #fff;
      box-shadow: 0 0 36px rgba(46, 116, 255, 0.48);
    }

    .btn-primary:active {
      transform: translateY(1px);
      box-shadow: 0 0 20px rgba(46, 116, 255, 0.3);
    }

    .btn-ghost {
      background: rgba(255, 255, 255, 0.05);
      color: var(--ink);
      border-color: rgba(255, 255, 255, 0.2);
    }

    .btn-ghost:hover {
      background: rgba(255, 255, 255, 0.12);
      color: #fff;
      border-color: rgba(255, 255, 255, 0.34);
      transform: translateY(-2px);
    }

    .btn-ghost:active {
      transform: translateY(1px);
    }

    /* Hero 区块 */
    .category-hero {
      position: relative;
      overflow: hidden;
      padding: 158px 0 86px;
      background-color: #0B1424;
      background-image:
        linear-gradient(94deg, rgba(5, 10, 20, 0.94) 4%, rgba(6, 12, 24, 0.76) 55%, rgba(9, 18, 35, 0.52)),
        url("/assets/images/backpic/back-2.png");
      background-size: cover;
      background-position: center;
      border-bottom: 1px solid rgba(255, 255, 255, 0.08);
    }

    .category-hero::after {
      content: "";
      position: absolute;
      inset: 0;
      pointer-events: none;
      opacity: 0.5;
      background:
        radial-gradient(620px 260px at 85% 20%, rgba(79, 227, 194, 0.1), transparent 70%),
        radial-gradient(760px 320px at 18% 88%, rgba(46, 116, 255, 0.16), transparent 72%);
    }

    .category-hero .grid-container {
      position: relative;
      z-index: 2;
    }

    .hero-copy {
      padding-bottom: 26px;
    }

    .hero-kicker {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      font-size: 0.88rem;
      font-weight: 600;
      color: var(--cyan);
      background: rgba(79, 227, 194, 0.09);
      border: 1px solid rgba(79, 227, 194, 0.16);
      padding: 6px 14px;
      border-radius: 999px;
      margin-bottom: 18px;
    }

    .hero-kicker .dot {
      width: 7px;
      height: 7px;
      border-radius: 50%;
      background: var(--cyan);
      box-shadow: 0 0 10px var(--cyan);
    }

    .category-hero h1 {
      font-size: clamp(2rem, 5vw, 3.4rem);
      line-height: 1.18;
      font-weight: 800;
      letter-spacing: -0.02em;
      color: #fff;
      max-width: 13em;
      margin-bottom: 22px;
    }

    .category-hero .lead {
      max-width: 38rem;
      font-size: 1.12rem;
      line-height: 1.8;
      color: var(--muted);
      margin-bottom: 30px;
    }

    .hero-actions {
      display: flex;
      flex-wrap: wrap;
      gap: 12px;
      margin-bottom: 24px;
    }

    .hero-chips {
      display: flex;
      flex-wrap: wrap;
      gap: 10px;
    }

    .chip-link {
      display: inline-flex;
      align-items: center;
      gap: 6px;
      padding: 8px 14px;
      border: 1px solid rgba(255, 255, 255, 0.14);
      background: rgba(255, 255, 255, 0.04);
      border-radius: 999px;
      font-size: 0.86rem;
      color: var(--muted);
      line-height: 1.4;
    }

    .chip-link:hover {
      color: #fff;
      background: rgba(255, 255, 255, 0.1);
      border-color: rgba(255, 255, 255, 0.25);
    }

    .glass-panel {
      background: rgba(12, 18, 34, 0.72);
      background-image: linear-gradient(145deg, rgba(255, 255, 255, 0.09), rgba(255, 255, 255, 0.02));
      border: 1px solid var(--line);
      border-radius: var(--r-xl);
      box-shadow: var(--shadow);
      backdrop-filter: blur(16px);
      -webkit-backdrop-filter: blur(16px);
    }

    .status-panel {
      padding: 26px;
      margin-top: 8px;
    }

    .status-panel::before {
      content: "";
      display: block;
      height: 1px;
      margin-bottom: 16px;
      background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.16), transparent);
    }

    .status-title {
      display: flex;
      align-items: center;
      gap: 10px;
      font-weight: 700;
      font-size: 1rem;
      color: #fff;
      margin-bottom: 18px;
    }

    .status-dot {
      width: 9px;
      height: 9px;
      border-radius: 50%;
      background: var(--cyan);
      box-shadow: 0 0 12px var(--cyan);
      flex: 0 0 auto;
    }

    .status-row {
      display: flex;
      align-items: center;
      justify-content: space-between;
      padding: 12px 0;
      border-bottom: 1px solid rgba(255, 255, 255, 0.08);
      color: var(--muted);
      font-size: 0.94rem;
    }

    .status-row:last-child {
      border-bottom: 0;
    }

    .status-row b {
      color: var(--ink);
      font-weight: 600;
    }

    .status-row b.cyan-text {
      color: var(--cyan);
    }

    .status-note {
      margin-top: 10px;
      color: var(--weak);
      font-size: 0.9rem;
      line-height: 1.7;
    }

    .text-link {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      margin-top: 18px;
      font-size: 0.94rem;
      font-weight: 600;
      color: var(--cyan);
    }

    .text-link:hover {
      color: #7FF6DA;
    }

    .text-link i {
      transition: transform 0.2s ease;
    }

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

    /* 通用页面区块 */
    .page-section {
      padding: 96px 0;
    }

    .section-head {
      margin-bottom: 46px;
    }

    .section-head.centered {
      text-align: center;
    }

    .eyebrow {
      display: inline-block;
      font-size: 0.84rem;
      font-weight: 700;
      letter-spacing: 0.05em;
      color: var(--cyan);
      text-transform: uppercase;
      margin-bottom: 10px;
    }

    .section-head h2,
    .cta-panel h2,
    .safe-banner h2 {
      font-size: clamp(1.65rem, 3.4vw, 2.5rem);
      line-height: 1.25;
      font-weight: 800;
      color: #fff;
      letter-spacing: -0.01em;
    }

    .section-desc {
      max-width: 46rem;
      margin-top: 14px;
      color: var(--muted);
      font-size: 1.06rem;
      line-height: 1.8;
    }

    /* 快速定位区 */
    .quick-help {
      padding: 96px 0 64px;
    }

    .quick-layout {
      display: grid;
      grid-template-columns: 0.92fr 1.18fr;
      gap: 52px;
      align-items: center;
    }

    .cover-frame {
      position: relative;
      border-radius: var(--r-xl);
      overflow: hidden;
      border: 1px solid var(--line);
      box-shadow: var(--shadow);
      background: linear-gradient(145deg, rgba(46, 116, 255, 0.12), rgba(79, 227, 194, 0.04));
    }

    .cover-frame::after {
      content: "";
      position: absolute;
      inset: 0;
      border-radius: inherit;
      border: 1px solid rgba(255, 255, 255, 0.08);
      pointer-events: none;
    }

    .cover-frame img {
      width: 100%;
      height: 100%;
      min-height: 300px;
      object-fit: cover;
    }

    .quick-list {
      display: flex;
      flex-direction: column;
    }

    .quick-row {
      display: flex;
      align-items: flex-start;
      gap: 18px;
      padding: 22px 0;
      border-bottom: 1px solid rgba(255, 255, 255, 0.08);
    }

    .quick-row:first-child {
      padding-top: 0;
    }

    .quick-row:last-child {
      border-bottom: 0;
      padding-bottom: 0;
    }

    .icon-box {
      width: 46px;
      height: 46px;
      flex: 0 0 auto;
      display: inline-flex;
      align-items: center;
      justify-content: center;
      border-radius: 15px;
      font-size: 1.15rem;
      color: var(--cyan);
      background: rgba(79, 227, 194, 0.1);
      border: 1px solid rgba(79, 227, 194, 0.16);
    }

    .quick-row h3 {
      font-size: 1.06rem;
      font-weight: 700;
      color: #fff;
      margin-bottom: 6px;
    }

    .quick-row p {
      color: var(--muted);
      font-size: 0.96rem;
      line-height: 1.75;
      max-width: 38rem;
    }

    .quick-row a {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      margin-top: 9px;
      font-size: 0.9rem;
      font-weight: 600;
      color: var(--blue-2);
    }

    .quick-row a:hover {
      color: var(--cyan);
    }

    .quick-row a i {
      font-size: 0.78rem;
    }

    /* FAQ 区块 */
    .faq-section {
      padding: 40px 0 90px;
    }

    .faq-section .section-head {
      margin-bottom: 30px;
    }

    .faq-tabs {
      display: flex;
      flex-wrap: wrap;
      gap: 10px;
      margin-bottom: 42px;
    }

    .faq-tabs a {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      padding: 9px 16px;
      border-radius: 999px;
      background: rgba(255, 255, 255, 0.045);
      border: 1px solid rgba(255, 255, 255, 0.14);
      color: var(--muted);
      font-size: 0.92rem;
      font-weight: 500;
    }

    .faq-tabs a:hover {
      color: #fff;
      background: rgba(46, 116, 255, 0.14);
      border-color: rgba(46, 116, 255, 0.36);
    }

    .faq-tabs a i {
      color: var(--cyan);
      font-size: 0.8rem;
    }

    .faq-group {
      height: 100%;
      padding: 24px 26px 12px;
      border-radius: var(--r-lg);
      background: rgba(11, 17, 32, 0.72);
      background-image: linear-gradient(150deg, rgba(255, 255, 255, 0.06), rgba(255, 255, 255, 0.015));
      border: 1px solid var(--line);
      box-shadow: var(--shadow);
      margin-bottom: 24px;
    }

    .group-title {
      display: flex;
      align-items: center;
      gap: 12px;
      margin-bottom: 8px;
    }

    .group-icon {
      width: 40px;
      height: 40px;
      display: inline-flex;
      align-items: center;
      justify-content: center;
      border-radius: 13px;
      font-size: 1.05rem;
      background: var(--blue-soft);
      color: #8FB2FF;
      border: 1px solid rgba(79, 143, 255, 0.22);
    }

    .group-title h3 {
      font-size: 1.2rem;
      font-weight: 700;
      color: #fff;
    }

    .faq-accordion {
      margin: 0;
      list-style: none;
      background: transparent;
    }

    .faq-accordion .accordion-item {
      margin: 0;
      background: transparent;
      border-bottom: 1px solid rgba(255, 255, 255, 0.08);
    }

    .faq-accordion .accordion-item:last-child {
      border-bottom: 0;
    }

    .faq-accordion .accordion-title {
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 18px;
      padding: 20px 0;
      background: transparent;
      color: var(--ink);
      font-size: 1rem;
      line-height: 1.5;
      border: 0;
      border-radius: 0;
    }

    .faq-accordion .accordion-title:hover,
    .faq-accordion .accordion-title:focus-visible {
      color: #fff;
      background: transparent;
    }

    .faq-accordion .accordion-title .title-text {
      font-weight: 600;
    }

    .faq-accordion .accordion-title i {
      margin-left: auto;
      flex: 0 0 auto;
      color: var(--weak);
      font-size: 0.9rem;
      transition: transform 0.28s ease, color 0.28s ease;
    }

    .faq-accordion .accordion-item.is-active .accordion-title {
      color: #fff;
    }

    .faq-accordion .accordion-item.is-active .accordion-title i {
      transform: rotate(180deg);
      color: var(--cyan);
    }

    .faq-accordion .accordion-content {
      background: transparent;
      color: var(--muted);
      border: 0;
      padding: 0 18px 24px 0;
      line-height: 1.8;
      font-size: 0.97rem;
      border-radius: 0;
    }

    .accordion-content {
      display: none;
    }

    .accordion-item.is-active .accordion-content {
      display: block;
    }

    /* 安全提示横条 */
    .safe-callout {
      padding: 10px 0 96px;
    }

    .safe-banner {
      display: grid;
      grid-template-columns: auto 1.2fr 1fr;
      gap: 30px;
      align-items: center;
      padding: 32px 34px;
      border-radius: var(--r-xl);
      background: linear-gradient(135deg, rgba(46, 116, 255, 0.1), rgba(79, 227, 194, 0.04));
      border: 1px solid rgba(255, 255, 255, 0.14);
      box-shadow: var(--shadow);
    }

    .safe-icon {
      width: 58px;
      height: 58px;
      display: flex;
      align-items: center;
      justify-content: center;
      border-radius: 20px;
      background: rgba(255, 255, 255, 0.08);
      color: var(--cyan);
      font-size: 1.5rem;
      border: 1px solid rgba(79, 227, 194, 0.16);
    }

    .safe-banner p {
      margin-top: 10px;
      color: var(--muted);
      font-size: 0.97rem;
      line-height: 1.8;
    }

    .safe-list {
      margin: 0;
      padding: 0;
      display: grid;
      gap: 14px;
    }

    .safe-list li {
      display: flex;
      align-items: flex-start;
      gap: 10px;
      color: var(--muted);
      font-size: 0.96rem;
    }

    .safe-list i {
      color: var(--cyan);
      margin-top: 7px;
      font-size: 0.76rem;
    }

    /* CTA 区块 */
    .bottom-cta {
      padding: 24px 0 110px;
    }

    .cta-panel {
      text-align: center;
      padding: 72px 30px;
      border-radius: var(--r-xl);
      background:
        radial-gradient(600px 240px at 50% 0%, rgba(46, 116, 255, 0.2), transparent 70%),
        linear-gradient(145deg, rgba(16, 24, 44, 0.92), rgba(7, 13, 26, 0.88));
      border: 1px solid var(--line);
      box-shadow: var(--shadow);
      position: relative;
      overflow: hidden;
    }

    .cta-panel::before {
      content: "";
      position: absolute;
      left: 8%;
      right: 8%;
      top: 0;
      height: 1px;
      background: linear-gradient(90deg, transparent, rgba(79, 227, 194, 0.6), transparent);
    }

    .cta-panel h2 {
      margin-bottom: 14px;
    }

    .cta-panel p {
      max-width: 42rem;
      margin: 0 auto 34px;
      color: var(--muted);
      font-size: 1.06rem;
      line-height: 1.85;
    }

    .cta-actions {
      display: flex;
      flex-wrap: wrap;
      justify-content: center;
      gap: 14px;
    }

    /* 页脚 */
    .site-footer {
      background: #04070F;
      border-top: 1px solid rgba(255, 255, 255, 0.08);
      padding: 62px 0 30px;
    }

    .site-footer .footer-grid {
      display: grid;
      grid-template-columns: 2fr 1fr 1fr 1.3fr;
      gap: 44px;
      padding-bottom: 38px;
      border-bottom: 1px solid rgba(255, 255, 255, 0.08);
    }

    .footer-brand {
      display: flex;
      align-items: center;
      gap: 10px;
      font-size: 1.16rem;
      font-weight: 800;
      color: #fff;
      margin-bottom: 14px;
    }

    .logo-mark.footer-mark {
      width: 36px;
      height: 36px;
      font-size: 0.94rem;
    }

    .footer-note {
      color: var(--weak);
      font-size: 0.94rem;
      line-height: 1.9;
      max-width: 26rem;
    }

    .site-footer h4 {
      font-size: 1rem;
      color: #fff;
      font-weight: 700;
      margin-bottom: 16px;
    }

    .site-footer ul {
      display: grid;
      gap: 10px;
      margin: 0;
      padding: 0;
    }

    .site-footer ul a {
      color: var(--muted);
      font-size: 0.94rem;
      line-height: 1.5;
    }

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

    .site-footer ul li {
      color: var(--weak);
      font-size: 0.94rem;
    }

    .footer-bottom {
      display: flex;
      flex-wrap: wrap;
      align-items: center;
      justify-content: space-between;
      gap: 12px;
      padding-top: 26px;
      color: var(--weak);
      font-size: 0.88rem;
    }

    .copyright {
      color: var(--weak);
      line-height: 1.7;
    }

    .icp {
      display: flex;
      flex-wrap: wrap;
      gap: 18px;
      color: var(--weak);
    }

    .to-top {
      position: fixed;
      right: 22px;
      bottom: 24px;
      z-index: 90;
      width: 42px;
      height: 42px;
      display: inline-flex;
      align-items: center;
      justify-content: center;
      border-radius: 50%;
      background: rgba(12, 18, 34, 0.86);
      border: 1px solid var(--line);
      color: var(--muted);
      font-size: 0.95rem;
      backdrop-filter: blur(12px);
      -webkit-backdrop-filter: blur(12px);
      transition: transform 0.2s ease, color 0.2s ease, background 0.2s ease;
    }

    .to-top:hover {
      transform: translateY(-3px);
      color: var(--cyan);
      background: rgba(12, 18, 34, 0.96);
      border-color: rgba(79, 227, 194, 0.35);
    }

    /* 响应式断点 */
    @media (max-width: 1100px) {
      .quick-layout {
        gap: 34px;
      }

      .safe-banner {
        grid-template-columns: auto 1fr;
      }

      .safe-list {
        grid-column: 1 / -1;
      }
    }

    @media (max-width: 1024px) {
      .nav-links {
        display: none;
        position: absolute;
        left: 0;
        right: 0;
        top: calc(100% + 16px);
        width: 100%;
        flex-direction: column;
        align-items: stretch;
        gap: 6px;
        padding: 14px;
        background: rgba(8, 13, 25, 0.96);
        border: 1px solid var(--line);
        border-radius: 24px;
        box-shadow: var(--shadow-lift);
        backdrop-filter: blur(20px);
        -webkit-backdrop-filter: blur(20px);
      }

      .nav-links.nav-open {
        display: flex;
      }

      .nav-links a {
        min-height: 46px;
        padding: 0 16px;
        font-size: 1rem;
      }

      .nav-toggle {
        display: inline-flex;
      }

      .navbar {
        padding: 6px;
      }

      .category-hero {
        padding: 148px 0 70px;
      }

      .status-panel {
        margin-top: 18px;
      }

      .page-section,
      .quick-help {
        padding-top: 72px;
        padding-bottom: 72px;
      }

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

    @media (max-width: 900px) {
      .quick-layout {
        grid-template-columns: 1fr;
      }

      .cover-frame img {
        min-height: 0;
      }

      .safe-banner {
        grid-template-columns: 1fr;
      }

      .safe-icon {
        width: 52px;
        height: 52px;
      }

      .safe-list {
        grid-column: auto;
      }
    }

    @media (max-width: 640px) {
      body {
        font-size: 15px;
      }

      .site-header {
        top: 10px;
        padding: 0 12px;
      }

      .navbar {
        min-height: 60px;
      }

      .logo-mark {
        width: 36px;
        height: 36px;
        font-size: 0.9rem;
      }

      .logo-text {
        font-size: 0.98rem;
      }

      .category-hero {
        padding: 132px 0 56px;
      }

      .category-hero h1 {
        font-size: clamp(1.76rem, 7vw, 2.4rem);
        line-height: 1.24;
      }

      .category-hero .lead {
        font-size: 1rem;
      }

      .hero-actions .btn {
        min-width: auto;
        padding: 12px 18px;
      }

      .status-panel {
        padding: 22px;
      }

      .quick-row {
        gap: 14px;
      }

      .icon-box {
        width: 42px;
        height: 42px;
        font-size: 1rem;
      }

      .faq-group {
        padding: 18px 18px 8px;
      }

      .faq-accordion .accordion-title {
        padding: 18px 0;
        font-size: 0.96rem;
      }

      .faq-accordion .accordion-content {
        padding-right: 0;
        font-size: 0.95rem;
      }

      .safe-banner {
        padding: 24px 20px;
      }

      .cta-panel {
        padding: 50px 20px;
      }

      .site-footer {
        padding: 48px 0 24px;
      }

      .site-footer .footer-grid {
        grid-template-columns: 1fr;
        gap: 28px;
      }

      .footer-bottom {
        justify-content: center;
        text-align: center;
      }
    }

    @media (max-width: 480px) {
      .hero-chips a {
        font-size: 0.82rem;
        padding: 7px 11px;
      }

      .btn {
        width: 100%;
        justify-content: center;
      }

      .hero-actions {
        flex-direction: column;
      }

      .page-section,
      .quick-help {
        padding-top: 56px;
        padding-bottom: 56px;
      }
    }