/* roulang page: index */
:root{
  --bg-deep:#070B14;
  --bg-secondary:#0C1322;
  --bg-panel:#111C30;
  --primary-blue:#2B7FFF;
  --cyan-glow:#38E8FF;
  --amber:#F5B544;
  --green:#30D5A0;
  --text-primary:#F0F4FF;
  --text-secondary:#A7B7D4;
  --text-muted:#64748B;
  --border-glass:rgba(141,180,255,.2);
  --radius-lg:24px;
  --radius-md:16px;
  --card-shadow:0 10px 30px rgba(0,0,0,.28);
  --hover-shadow:0 18px 50px rgba(5,10,30,.5);
}
*{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{
  margin:0;
  background:var(--bg-deep);
  color:var(--text-primary);
  font-family:PingFang SC,Microsoft YaHei,Noto Sans CJK SC,sans-serif;
  font-size:16px;
  line-height:1.7;
  overflow-x:hidden;
  -webkit-font-smoothing:antialiased;
  font-variant-numeric:tabular-nums;
}
a{text-decoration:none;color:inherit}
img{max-width:100%;display:block}
button{background:none;border:0;cursor:pointer;color:inherit}
::selection{background:rgba(43,127,255,.45);color:#fff}
:focus-visible{outline:2px solid var(--cyan-glow);outline-offset:3px;border-radius:8px}
body::-webkit-scrollbar, .gallery-track::-webkit-scrollbar{width:8px;height:6px}
body::-webkit-scrollbar-thumb, .gallery-track::-webkit-scrollbar-thumb{background:rgba(56,232,255,.35);border-radius:8px}
body::-webkit-scrollbar-track, .gallery-track::-webkit-scrollbar-track{background:rgba(13,20,36,.6)}
.ui-container{width:min(1280px, calc(100% - 32px));margin-inline:auto;position:relative}
.section{position:relative;padding:64px 0}
.section-divider{height:1px;background:linear-gradient(90deg,transparent,rgba(141,180,255,.25),transparent)}
.section-label{display:inline-flex;align-items:center;gap:8px;font-size:13px;font-weight:600;letter-spacing:.08em;color:var(--cyan-glow);background:rgba(56,232,255,.08);border:1px solid rgba(56,232,255,.18);border-radius:999px;padding:6px 14px;margin-bottom:16px}
.section-title{font-size:28px;line-height:1.2;font-weight:800;letter-spacing:-.02em;margin:0 0 14px}
.section-desc{color:var(--text-secondary);max-width:680px}
.section-foot{margin-top:22px;color:var(--text-muted);font-size:14px}
.text-glow-gradient{background:linear-gradient(105deg,#38E8FF 0%,#2B7FFF 75%);-webkit-background-clip:text;background-clip:text;color:transparent}
.glass-card{background:linear-gradient(135deg,rgba(255,255,255,.08),rgba(255,255,255,.02));backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);border:1px solid rgba(141,180,255,.2);box-shadow:0 10px 30px rgba(0,0,0,.28);border-radius:var(--radius-md)}
.site-header{
  position:fixed;top:0;left:0;right:0;z-index:80;height:72px;
  display:flex;align-items:center;
  background:rgba(7,11,20,.70);
  backdrop-filter:blur(16px);-webkit-backdrop-filter:blur(16px);
  border-bottom:1px solid rgba(141,180,255,.15);
  transition:background .35s ease;
}
.site-header.is-scrolled{background:rgba(7,11,20,.92)}
.logo-mark{
  width:35px;height:35px;border-radius:10px;display:grid;place-items:center;font-size:16px;font-weight:800;color:#fff;flex:none;
  background:linear-gradient(135deg,#2B7FFF,#38E8FF);
  box-shadow:0 0 18px rgba(43,127,255,.55);
}
.logo-text{font-weight:800;font-size:18px;letter-spacing:-.01em;color:#fff;white-space:nowrap}
.brand-sub{font-size:11px;color:var(--text-muted);white-space:nowrap;padding-left:8px;border-left:1px solid rgba(141,180,255,.18)}
.nav-center{display:flex;align-items:center;gap:4px}
.nav-channel{
  position:relative;display:inline-flex;align-items:center;gap:6px;
  padding:9px 15px;border-radius:12px;font-size:14px;font-weight:600;color:var(--text-secondary);
  transition:all .22s ease;white-space:nowrap;
}
.nav-channel:hover{color:var(--text-primary);background:rgba(43,127,255,.12)}
.nav-channel.active{color:#fff;background:rgba(43,127,255,.14);box-shadow:inset 0 0 0 1px rgba(56,232,255,.16)}
.nav-channel.active::after{
  content:'';position:absolute;left:14px;right:14px;bottom:2px;height:2px;border-radius:2px;
  background:linear-gradient(90deg,var(--cyan-glow),var(--primary-blue));
  box-shadow:0 0 10px rgba(56,232,255,.9);
}
.countdown-pill{display:inline-flex;align-items:center;gap:8px;font-size:12px;font-weight:600;color:#F5F7FF;padding:8px 14px;border-radius:999px;background:rgba(255,255,255,.06);border:1px solid rgba(141,180,255,.18);backdrop-filter:blur(12px);white-space:nowrap}
.countdown-pill .cd-dot{width:7px;height:7px;border-radius:50%;background:var(--amber);box-shadow:0 0 10px rgba(245,181,68,.8);animation:pulse 1.6s infinite}
@keyframes pulse{0%,100%{opacity:1;transform:scale(1)}50%{opacity:.45;transform:scale(.82)}}
.countdown-pill .cd-time{font-size:13px;font-weight:800;color:#fff;letter-spacing:.03em}
.version-chip{font-size:11px;color:var(--text-secondary);border:1px solid rgba(141,180,255,.2);padding:4px 10px;border-radius:999px;background:rgba(12,19,34,.72)}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;border-radius:14px;
  font-weight:700;line-height:1;transition:all .2s ease;white-space:nowrap;position:relative;
}
.btn-primary{
  background:linear-gradient(135deg,#2B7FFF 0%,#1f5fd0 100%);
  border:1px solid rgba(255,255,255,.22);color:#fff;
  padding:14px 26px;box-shadow:0 12px 32px -8px rgba(43,127,255,.58),0 1px 0 rgba(255,255,255,.18) inset;
}
.btn-primary:hover{transform:translateY(-2px);background:linear-gradient(135deg,#3f8bff,#286be0);box-shadow:0 18px 46px -10px rgba(43,127,255,.82)}
.btn-primary:active{transform:translateY(1px) scale(.98);box-shadow:0 7px 18px -6px rgba(43,127,255,.7)}
.btn-primary.sm{padding:11px 19px;font-size:15px;border-radius:12px}
.btn-primary.lg{padding:16px 30px;font-size:16px}
.btn-secondary{
  background:rgba(255,255,255,.07);border:1px solid rgba(141,180,255,.28);color:var(--text-primary);
  backdrop-filter:blur(10px);padding:14px 24px;box-shadow:0 10px 24px -12px rgba(0,0,0,.5);
}
.btn-secondary:hover{background:rgba(255,255,255,.13);transform:translateY(-2px);border-color:rgba(56,232,255,.45)}
.btn-secondary:active{transform:translateY(1px)}
.hero-bg{
  position:absolute;inset:0;background:
    linear-gradient(115deg,rgba(5,8,15,.92) 10%,rgba(7,11,20,.76) 55%,rgba(12,20,35,.65)),
    url('/assets/images/backpic/back-1.webp') center/cover no-repeat;
}
.hero-grid{
  position:absolute;inset:0;background-image:
    linear-gradient(rgba(56,232,255,.05) 1px,transparent 1px),
    linear-gradient(90deg,rgba(56,232,255,.04) 1px,transparent 1px);
  background-size:48px 48px;
  -webkit-mask-image:radial-gradient(ellipse at 28% 40%,rgba(0,0,0,.9),transparent 74%);
          mask-image:radial-gradient(ellipse at 28% 40%,rgba(0,0,0,.9),transparent 74%);
}
.hero-glow{
  position:absolute;inset:0;background:
    radial-gradient(760px at 30% 35%,rgba(43,127,255,.34),transparent 70%),
    radial-gradient(500px at 85% 20%,rgba(56,232,255,.14),transparent 65%);
  pointer-events:none;
}
.hero-code-badge{display:inline-flex;gap:8px;align-items:center;font-size:12px;font-weight:500;color:#dcecff;background:rgba(9,15,29,.58);border:1px solid rgba(141,180,255,.24);padding:6px 12px;border-radius:999px;backdrop-filter:blur(6px)}
.hero-code-badge.green-dot::before{content:'';width:6px;height:6px;border-radius:50%;background:var(--green);box-shadow:0 0 8px rgba(48,213,160,.8)}
.hero-title{font-size:34px;line-height:1.16;font-weight:800;letter-spacing:-.025em;margin:20px 0 20px}
.hero-sub{font-size:16px;line-height:1.85;color:#bcd0ea;max-width:520px}
.hero-meta{font-size:13px;color:var(--text-muted);display:flex;flex-wrap:wrap;gap:8px 20px}
.phone-frame{
  max-width:342px;margin-inline:auto;border-radius:38px;padding:12px 10px 28px;background:#0d1420;
  border:1px solid rgba(255,255,255,.17);box-shadow:0 40px 80px rgba(0,0,0,.45),0 0 60px rgba(43,127,255,.12),0 0 0 1px rgba(43,127,255,.14);
  position:relative;
}
.phone-frame .screen{overflow:hidden;border-radius:28px;aspect-ratio:9/19;background:#06090f;display:grid;place-items:center}
.phone-frame img{width:100%;height:100%;object-fit:cover}
.phone-line{position:absolute;left:50%;transform:translateX(-50%);top:22px;width:92px;height:6px;border-radius:999px;background:rgba(255,255,255,.6);z-index:3;box-shadow:0 0 8px rgba(0,0,0,.3)}
.metrics-band{background:linear-gradient(180deg,rgba(10,16,29,.9),rgba(12,20,35,.6));border-top:1px solid rgba(141,180,255,.12);border-bottom:1px solid rgba(141,180,255,.12)}
.metric-item{border-right:1px solid rgba(141,180,255,.12);padding:24px 10px}
.metric-item:last-child{border-right:0}
.metric-value{font-size:34px;font-weight:800;line-height:1.1;color:#fff;letter-spacing:-.02em}
.metric-value small{font-size:17px;font-weight:600;color:var(--cyan-glow);margin-left:2px}
.metric-label{font-size:13px;color:var(--text-muted);margin-top:6px;letter-spacing:.02em}
.feature-row{display:grid;grid-template-columns:repeat(12,1fr);gap:28px;align-items:center;margin-bottom:72px}
.feature-row:last-child{margin-bottom:0}
.feature-figure{grid-column:1/6;order:1}
.feature-content{grid-column:8/13;order:2}
.feature-row.flip .feature-figure{grid-column:8/13;order:2}
.feature-row.flip .feature-content{grid-column:1/6;order:1}
.feature-media{border-radius:24px;overflow:hidden;border:1px solid rgba(141,180,255,.22);position:relative;box-shadow:0 25px 60px rgba(0,0,0,.28)}
.feature-media img{width:100%;height:auto;min-height:220px;object-fit:cover}
.feature-media::after{content:'';position:absolute;inset:0;box-shadow:inset 0 0 0 1px rgba(255,255,255,.08);border-radius:24px;pointer-events:none}
.feature-tag{font-size:12px;font-weight:700;color:var(--cyan-glow);letter-spacing:.1em;margin-bottom:10px;display:inline-flex;align-items:center;gap:6px}
.feature-icon{width:44px;height:44px;border-radius:14px;display:grid;place-items:center;background:rgba(43,127,255,.16);color:#fff;border:1px solid rgba(56,232,255,.24);margin-bottom:20px}
.feature-icon svg{width:22px;height:22px}
.feature-title{font-size:24px;font-weight:800;letter-spacing:-.02em;margin-bottom:12px}
.feature-text{color:var(--text-secondary);max-width:470px}
.gallery-card{background:linear-gradient(150deg,rgba(18,27,44,.88),rgba(10,16,27,.9));border:1px solid rgba(141,180,255,.22);border-radius:28px;backdrop-filter:blur(14px);padding:10px;box-shadow:0 18px 60px rgba(0,0,0,.45)}
.gallery-track{display:flex;overflow-x:auto;scroll-snap-type:x mandatory;gap:18px;padding:16px 2px 28px;scrollbar-width:none}
.gallery-track::-webkit-scrollbar{display:none}
.gallery-slide{flex:0 0 78%;max-width:560px;scroll-snap-align:center;position:relative}
.gallery-slide .shot{aspect-ratio:16/10;border-radius:20px;overflow:hidden;position:relative;background:#06090f;border:1px solid rgba(141,180,255,.24)}
.gallery-slide img{width:100%;height:100%;object-fit:cover;transition:transform .5s ease}
.gallery-slide:hover img{transform:scale(1.04)}
.gallery-label{font-size:14px;color:var(--text-primary);margin-top:14px;text-align:center;font-weight:600}
.gallery-caption{font-size:12px;color:var(--text-muted);text-align:center;margin-top:2px}
.swipe-btn{position:absolute;top:calc(50% - 28px);z-index:5;width:42px;height:42px;border-radius:50%;display:grid;place-items:center;font-size:20px;color:#fff;background:rgba(15,23,40,.68);border:1px solid rgba(255,255,255,.12);backdrop-filter:blur(8px);transition:.25s}
.swipe-btn:hover{background:rgba(43,127,255,.6);border-color:rgba(56,232,255,.5);box-shadow:0 0 16px rgba(43,127,255,.4)}
.spec-icon{width:56px;height:56px;border-radius:17px;display:grid;place-items:center;background:rgba(56,232,255,.12);color:#fff;border:1px solid rgba(56,232,255,.25);margin-bottom:18px}
.spec-card{border-radius:20px;padding:30px;height:100%;transition:transform .25s ease,box-shadow .25s ease}
.spec-card:hover{transform:translateY(-5px);box-shadow:0 18px 50px rgba(5,10,30,.45)}
.spec-card h3{font-size:21px;font-weight:800;margin:0 0 8px}
.spec-type{font-size:12px;color:var(--text-muted);display:block;margin-bottom:20px}
.spec-list{margin:0 0 18px;padding:0;list-style:none}
.spec-list li{display:flex;gap:12px;padding:12px 0;border-bottom:1px dashed rgba(141,180,255,.14);font-size:14px;color:var(--text-secondary)}
.spec-list li:last-child{border-bottom:none}
.spec-list b{color:#fff;font-weight:600;margin-left:auto;text-align:right;font-size:13px}
.check-ok{width:20px;height:20px;flex:none;color:var(--green);display:grid;place-items:center;border-radius:6px;background:rgba(48,213,160,.14);border:1px solid rgba(48,213,160,.25)}
.check-ok svg{width:12px;height:12px;stroke:currentColor;stroke-width:3;fill:none}
.review-card{background:rgba(255,255,255,.06);backdrop-filter:blur(10px);border:1px solid rgba(141,180,255,.18);border-radius:20px;padding:22px;transition:all .25s}
.review-card:hover{transform:translateY(-4px);border-color:rgba(56,232,255,.35);background:rgba(255,255,255,.09)}
.stars{display:flex;gap:3px;color:var(--amber);font-size:15px;margin-bottom:12px}
.review-text{color:#ccd9f2;font-size:14px;line-height:1.8;margin-bottom:18px}
.review-user{display:flex;align-items:center;gap:10px}
.avatar{width:34px;height:34px;border-radius:50%;background:linear-gradient(135deg,#2B7FFF,#38E8FF);display:grid;place-items:center;font-weight:700;font-size:13px;color:#fff;flex:none}
.review-name{font-size:13px;color:#fff;font-weight:600}
.review-source{font-size:11px;color:var(--text-muted)}
.faq-layout{display:grid;grid-template-columns:1fr;gap:34px}
.faq-card{border:1px solid rgba(141,180,255,.18);background:linear-gradient(135deg,rgba(255,255,255,.05),rgba(255,255,255,.015));border-radius:20px;overflow:hidden;margin-bottom:14px;transition:border-color .2s}
.faq-card.is-open{border-color:rgba(56,232,255,.35);background:rgba(12,20,36,.78)}
.faq-question-button{width:100%;display:flex;align-items:center;justify-content:space-between;gap:14px;padding:20px 22px;font-size:15px;font-weight:600;color:var(--text-primary);cursor:pointer;text-align:left;transition:all .2s}
.faq-question-button:hover{background:rgba(43,127,255,.07)}
.faq-icon{width:30px;height:30px;border-radius:10px;background:rgba(43,127,255,.16);border:1px solid rgba(56,232,255,.24);display:grid;place-items:center;transition:.3s;color:#fff;font-size:20px;flex:none}
.faq-icon svg{width:14px;height:14px;transition:transform .3s}
.faq-card.is-open .faq-icon svg{transform:rotate(45deg)}
.faq-answer{max-height:0;overflow:hidden;transition:max-height .28s ease}
.faq-answer-inner{padding:0 22px 21px;color:var(--text-secondary);font-size:14px;border-top:1px solid rgba(141,180,255,.1);margin-top:-1px;padding-top:16px;line-height:1.85}
.news-filter{display:flex;flex-wrap:wrap;gap:8px}
.news-tab{font-size:13px;font-weight:600;padding:7px 15px;border-radius:999px;color:var(--text-secondary);border:1px solid rgba(141,180,255,.2);transition:.2s;cursor:default}
.news-tab.active{color:#fff;background:rgba(43,127,255,.2);border-color:rgba(56,232,255,.3);box-shadow:0 0 14px rgba(43,127,255,.25)}
.news-item{display:flex;flex-direction:column;gap:14px;padding:18px 16px;border-radius:18px;background:rgba(255,255,255,.045);border:1px solid rgba(141,180,255,.15);transition:.25s;position:relative;overflow:hidden}
.news-item:hover{background:rgba(43,127,255,.08);transform:translateY(-3px);border-color:rgba(56,232,255,.35)}
.news-item:hover::before{content:'';position:absolute;left:0;top:0;bottom:0;width:3px;background:linear-gradient(180deg,var(--cyan-glow),var(--primary-blue));box-shadow:0 0 14px rgba(56,232,255,.7)}
.news-thumb{width:88px;height:88px;border-radius:14px;overflow:hidden;background:#0b1424;object-fit:cover;flex:none}
.news-thumb img{width:100%;height:100%;object-fit:cover}
.news-content{flex:1;min-width:0}
.news-title{font-size:16px;font-weight:700;color:#fff;margin:0 0 6px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;transition:.2s}
.news-item:hover .news-title{color:var(--cyan-glow)}
.news-summary{font-size:13px;color:var(--text-secondary);margin:0;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.news-meta{display:flex;align-items:center;gap:14px;margin-top:10px;flex-wrap:wrap}
.news-meta-tag{font-size:11px;font-weight:600;color:#bceaff;background:rgba(56,232,255,.1);border:1px solid rgba(56,232,255,.2);padding:3px 8px;border-radius:999px}
.news-time{font-size:12px;color:var(--text-muted);white-space:nowrap}
.news-arrow{color:var(--text-muted);font-size:19px;transition:.2s}
.news-item:hover .news-arrow{color:var(--cyan-glow);transform:translateX(4px)}
.empty-list{display:flex;flex-direction:column;align-items:center;justify-content:center;padding:44px 24px;border:1px dashed rgba(141,180,255,.22);border-radius:22px;color:var(--text-muted);background:rgba(255,255,255,.02)}
.cta-band{background:linear-gradient(180deg,rgba(13,21,38,.6),rgba(7,11,20,.5));border-top:1px solid rgba(141,180,255,.12);border-bottom:1px solid rgba(141,180,255,.12);position:relative;overflow:hidden}
.qr-placeholder{width:116px;height:116px;border-radius:20px;background:#f6f9ff;display:grid;place-items:center}
.qr-svg{width:96px;height:96px;color:#081124}
.footer{padding-top:60px;padding-bottom:30px;background:#060913;border-top:1px solid rgba(141,180,255,.12)}
.footer-brand{font-size:19px;font-weight:800;color:#fff}
.footer-link{display:inline-flex;color:var(--text-muted);font-size:14px;padding:7px 0;transition:.2s;white-space:nowrap}
.footer-link:hover{color:var(--cyan-glow)}
.footer-col-title{font-size:13px;color:#fff;font-weight:700;margin-bottom:10px;letter-spacing:.02em}
.mobile-sheet{
  position:fixed;right:0;top:0;height:100vh;width:min(320px,88vw);z-index:100;
  background:rgba(7,13,24,.95);backdrop-filter:blur(20px);border-left:1px solid rgba(141,180,255,.18);
  transform:translateX(105%);transition:transform .32s ease;display:flex;flex-direction:column;padding:26px 20px;
}
.mobile-sheet.open{transform:translateX(0)}
.sheet-scrim{position:fixed;inset:0;background:rgba(0,0,0,.45);backdrop-filter:blur(2px);z-index:90;opacity:0;pointer-events:none;transition:.3s}
.sheet-scrim.active{opacity:1;pointer-events:auto}
.mobile-menu-link{display:block;line-height:48px;font-size:16px;font-weight:600;color:#d9e5ff;border-bottom:1px solid rgba(141,180,255,.1)}
.mobile-menu-link.active{color:var(--cyan-glow)}
@media (min-width:768px){
  .section{padding:72px 0}
  .faq-layout{grid-template-columns:1fr}
  .gallery-slide{flex-basis:68%}
}
@media (min-width:1024px){
  .section{padding:96px 0}
  .section-title{font-size:34px}
  .hero-title{font-size:54px;line-height:1.08}
  .feature-row{gap:44px}
  .faq-layout{grid-template-columns:5fr 7fr;gap:68px}
  .metrics-band .metric-item{padding:34px 12px}
  .news-item{flex-direction:row;align-items:center;padding:16px 20px}
  .news-meta{margin-top:0;margin-left:auto;flex-direction:column;gap:7px;align-items:flex-end}
}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation-duration:.001s!important;transition-duration:.001s!important;scroll-behavior:auto!important}
}

/* roulang page: article */
:root {
            --bg-deep: #070B14;
            --bg-2: #0C1322;
            --bg-3: #111C30;
            --primary: #2B7FFF;
            --accent: #38E8FF;
            --amber: #F5B544;
            --text-1: #F0F4FF;
            --text-2: #A7B7D4;
            --text-3: #64748B;
            --ok: #30D5A0;
            --border-glow: rgba(141, 180, 255, .2);
            --radius-card: 16px;
            --shadow-card: 0 10px 30px rgba(0, 0, 0, .28);
        }
        * {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            font-family: "PingFang SC", "Microsoft YaHei", "Noto Sans CJK SC", system-ui, -apple-system, sans-serif;
            background: var(--bg-deep);
            color: var(--text-1);
            line-height: 1.7;
            font-size: 16px;
            -webkit-font-smoothing: antialiased;
            font-variant-numeric: tabular-nums;
        }
        img,
        svg {
            max-width: 100%;
            display: block;
        }
        a {
            color: inherit;
            text-decoration: none;
            transition: color .22s ease;
        }
        button,
        input {
            font-family: inherit;
        }
        .ui-container {
            max-width: 1280px;
            margin: 0 auto;
            padding: 0 28px;
        }
        @media (max-width: 768px) {
            .ui-container {
                padding: 0 16px;
            }
        }

        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 60;
            height: 72px;
            border-bottom: 1px solid rgba(141, 180, 255, .12);
            background: rgba(7, 11, 20, .72);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            transition: background .3s;
        }
        .site-header.scrolled {
            background: rgba(7, 11, 20, .9);
        }
        .header-row {
            height: 72px;
            display: flex;
            align-items: center;
            gap: 18px;
            flex-wrap: nowrap;
        }
        .header-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 19px;
            font-weight: 800;
            letter-spacing: -.01em;
            white-space: nowrap;
            color: #F0F4FF;
        }
        .header-logo:hover {
            color: #fff;
        }
        .logo-mark {
            width: 34px;
            height: 34px;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            border-radius: 10px;
            background: linear-gradient(135deg, rgba(56, 232, 255, .18), rgba(43, 127, 255, .16));
            border: 1px solid rgba(56, 232, 255, .3);
            color: #38E8FF;
            font-size: 17px;
            font-weight: 800;
        }
        .header-logo-sub {
            font-size: 10px;
            color: #52698A;
            font-weight: 500;
            letter-spacing: .02em;
            display: none;
            margin-left: -5px;
        }

        .nav-center {
            position: absolute;
            left: 50%;
            transform: translateX(-50%);
            display: flex;
            align-items: center;
            gap: 4px;
            margin-left: 12px;
        }
        .nav-channel {
            position: relative;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            height: 72px;
            padding: 0 20px;
            font-size: 15px;
            color: #8CA0BC;
            border-bottom: 2px solid transparent;
            letter-spacing: .01em;
            font-weight: 500;
            transition: color .2s;
        }
        .nav-channel:hover {
            color: #dbe6ff;
        }
        .nav-channel.active {
            color: #F0F4FF;
            font-weight: 600;
        }
        .nav-channel.active::after {
            content: "";
            position: absolute;
            bottom: -1px;
            left: 18px;
            right: 18px;
            height: 2px;
            border-radius: 2px;
            background: linear-gradient(90deg, #2B7FFF, #38E8FF);
            box-shadow: 0 0 8px rgba(56, 232, 255, .7);
        }
        .header-status {
            display: flex;
            align-items: center;
            gap: 10px;
            margin-left: auto;
        }
        .countdown-pill,
        .status-pill {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            height: 34px;
            padding: 0 12px;
            border-radius: 999px;
            background: rgba(255, 255, 255, .06);
            border: 1px solid rgba(141, 180, 255, .2);
            backdrop-filter: blur(10px);
            color: #C6D6F2;
            font-size: 12px;
            white-space: nowrap;
            overflow: hidden;
        }
        .countdown-pill .dot {
            width: 6px;
            height: 6px;
            border-radius: 999px;
            background: #30D5A0;
            box-shadow: 0 0 8px rgba(48, 213, 160, .9);
        }
        .status-pill .shine {
            width: 6px;
            height: 6px;
            border-radius: 999px;
            background: #F5B544;
            box-shadow: 0 0 7px rgba(245, 181, 68, .85);
        }
        .btn-primary-small {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            height: 40px;
            padding: 0 18px;
            border-radius: 12px;
            font-size: 14px;
            font-weight: 600;
            color: #fff;
            background: linear-gradient(135deg, #2B7FFF, #1593ff);
            box-shadow: 0 8px 20px rgba(43, 127, 255, .35), 0 0 0 1px rgba(56, 232, 255, .14) inset;
            border: none;
            white-space: nowrap;
            transition: transform .2s, box-shadow .2s, background .2s;
        }
        .btn-primary-small:hover {
            transform: translateY(-2px);
            box-shadow: 0 12px 30px rgba(43, 127, 255, .45);
            background: linear-gradient(135deg, #348cff, #25a8ff);
        }
        .btn-primary-small:active {
            transform: translateY(0);
            box-shadow: 0 4px 14px rgba(43, 127, 255, .3);
        }
        .btn-primary-small:focus-visible,
        .btn-primary:focus-visible,
        .nav-channel:focus-visible,
        .footer-link:focus-visible {
            outline: 2px solid var(--accent);
            outline-offset: 3px;
            border-radius: 8px;
        }

        .mobile-menu-btn {
            width: 40px;
            height: 40px;
            display: none;
            align-items: center;
            justify-content: center;
            border: 1px solid rgba(141, 180, 255, .22);
            background: rgba(255, 255, 255, .05);
            border-radius: 10px;
            color: #C6D6F2;
            cursor: pointer;
        }
        .mobile-drawer {
            position: fixed;
            top: 0;
            right: 0;
            bottom: 0;
            width: 300px;
            max-width: 86vw;
            z-index: 100;
            background: rgba(9, 15, 28, .92);
            backdrop-filter: blur(22px);
            -webkit-backdrop-filter: blur(22px);
            border-left: 1px solid rgba(141, 180, 255, .2);
            transform: translateX(105%);
            transition: transform .3s ease;
            padding: 22px 20px;
            display: flex;
            flex-direction: column;
            gap: 12px;
            box-shadow: -20px 0 50px rgba(3, 6, 12, .5);
        }
        .mobile-drawer.open {
            transform: translateX(0);
        }
        .drawer-nav {
            display: flex;
            flex-direction: column;
            margin-top: 24px;
        }
        .drawer-nav a {
            display: flex;
            align-items: center;
            min-height: 48px;
            padding: 0 12px;
            border-radius: 10px;
            color: #C6D6F2;
            font-size: 16px;
            border-bottom: 1px solid rgba(255, 255, 255, .06);
        }
        .drawer-nav a.active,
        .drawer-nav a:hover {
            background: rgba(56, 232, 255, .09);
            color: #fff;
        }
        .drawer-backdrop {
            position: fixed;
            inset: 0;
            z-index: 99;
            background: rgba(2, 5, 10, .6);
            display: none;
            opacity: 0;
            transition: opacity .25s;
        }
        .drawer-backdrop.show {
            opacity: 1;
        }

        @media (max-width: 1024px) {
            .nav-center {
                display: none !important;
            }
            .mobile-menu-btn {
                display: inline-flex;
            }
            .countdown-pill .text-full {
                display: none;
            }
        }

        .article-banner {
            margin-top: 72px;
            min-height: 210px;
            display: flex;
            align-items: flex-end;
            background: url("/assets/images/backpic/back-1.webp") center center / cover no-repeat, #0C1322;
            position: relative;
            overflow: hidden;
        }
        .article-banner::before {
            content: "";
            position: absolute;
            inset: 0;
            background: linear-gradient(115deg, rgba(7, 11, 20, .93), rgba(7, 11, 20, .55) 55%, rgba(17, 28, 48, .45));
        }
        .article-banner .ui-container {
            position: relative;
            z-index: 2;
            width: 100%;
            padding-bottom: 30px;
        }
        .breadcrumb {
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            gap: 8px;
            color: #7f91ae;
            font-size: 13px;
            margin-bottom: 6px;
        }
        .breadcrumb a:hover {
            color: #dce6ff;
        }
        .breadcrumb svg {
            width: 14px;
            height: 14px;
            color: #5b6c86;
        }
        .breadcrumb-active {
            max-width: 280px;
            white-space: nowrap;
            overflow: hidden;
            text-overflow: ellipsis;
            color: #A7B7D4;
        }

        .glass-card {
            background: linear-gradient(160deg, rgba(255, 255, 255, .08), rgba(255, 255, 255, .02));
            border: 1px solid var(--border-glow);
            border-radius: var(--radius-card);
            box-shadow: var(--shadow-card);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
        }
        .article-layout {
            margin-top: 34px;
            margin-bottom: 70px;
            align-items: flex-start;
        }

        .post-header {
            padding: 2px 0 24px;
        }
        .post-categories {
            display: flex;
            gap: 8px;
            margin-bottom: 16px;
        }
        .cat-tag {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            border-radius: 999px;
            padding: 5px 13px;
            font-size: 12px;
            background: rgba(43, 127, 255, .16);
            border: 1px solid rgba(56, 232, 255, .25);
            color: #8ADBFF;
            font-weight: 500;
        }
        .post-title {
            font-size: 30px;
            line-height: 1.35;
            font-weight: 700;
            letter-spacing: -.012em;
            color: #F0F4FF;
            margin-bottom: 14px;
        }
        @media (min-width: 768px) {
            .post-title {
                font-size: 40px;
                line-height: 1.25;
            }
        }
        .post-meta {
            display: flex;
            flex-wrap: wrap;
            gap: 10px 20px;
            align-items: center;
            font-size: 13px;
            color: #6b7f9d;
            border-top: 1px solid rgba(141, 180, 255, .13);
            border-bottom: 1px solid rgba(141, 180, 255, .13);
            padding: 12px 0;
        }
        .post-meta span {
            display: inline-flex;
            align-items: center;
            gap: 6px;
        }
        .post-meta .meta-dot {
            width: 4px;
            height: 4px;
            border-radius: 999px;
            background: #3E5678;
            display: inline-block;
        }

        .post-content {
            padding-top: 22px;
            color: #E4ECFA;
            font-size: 16px;
            line-height: 1.9;
            word-break: break-word;
            min-height: 250px;
        }
        .post-content p {
            margin: 0 0 1.2em;
        }
        .post-content h2 {
            font-size: 24px;
            font-weight: 700;
            color: #f5f9ff;
            line-height: 1.45;
            margin: 1.8em 0 .7em;
        }
        .post-content h3 {
            font-size: 19px;
            font-weight: 650;
            color: #d5e1f5;
            line-height: 1.5;
            margin: 1.5em 0 .55em;
        }
        .post-content h4 {
            font-size: 16px;
            font-weight: 650;
            color: #c6d6f2;
            margin: 1.3em 0 .5em;
        }
        .post-content img {
            border-radius: 16px;
            margin: 1.2em 0;
            max-width: 100%;
            border: 1px solid rgba(141, 180, 255, .18);
        }
        .post-content blockquote {
            border-left: 3px solid var(--primary);
            background: rgba(43, 127, 255, .07);
            padding: 14px 20px;
            border-radius: 0 14px 14px 0;
            margin: 1.4em 0;
            color: #AFC2DF;
            font-style: normal;
        }
        .post-content blockquote p {
            margin: .25em 0;
        }
        .post-content ul,
        .post-content ol {
            padding-left: 1.3em;
            margin: .8em 0 1.2em;
        }
        .post-content ul li,
        .post-content ol li {
            margin: .35em 0;
            padding-left: .2em;
        }
        .post-content a {
            color: #3FB6FF;
            border-bottom: 1px solid rgba(63, 182, 255, .4);
        }
        .post-content a:hover {
            color: #38E8FF;
            border-color: #38E8FF;
        }
        .post-content .post-alert {
            background: rgba(245, 181, 68, .09);
            border: 1px solid rgba(245, 181, 68, .2);
            border-radius: 14px;
            padding: 14px 18px;
            margin: 1.2em 0;
            font-size: 14px;
            color: #FFE2A6;
        }

        .missing-card {
            padding: 50px 28px;
            text-align: center;
            background: linear-gradient(160deg, rgba(255, 255, 255, .05), rgba(255, 255, 255, .01));
            border: 1px solid rgba(141, 180, 255, .17);
            border-radius: 20px;
            min-height: 210px;
            justify-content: center;
            display: flex;
            flex-direction: column;
            align-items: center;
            gap: 14px;
        }

        .sidebar-card {
            padding: 20px;
            border-radius: 18px;
            margin-bottom: 20px;
            background: rgba(17, 28, 48, .55);
            border: 1px solid rgba(141, 180, 255, .14);
            backdrop-filter: blur(10px);
        }
        .sidebar-title {
            font-size: 15px;
            font-weight: 700;
            color: #dbe6f9;
            display: flex;
            align-items: center;
            gap: 8px;
            margin-bottom: 14px;
        }
        .sidebar-title svg {
            width: 17px;
            height: 17px;
            color: #38E8FF;
        }
        .sidebar-cat-item {
            display: flex;
            align-items: center;
            gap: 10px;
            border-radius: 12px;
            padding: 10px 10px;
            color: #9AACCB;
            font-size: 14px;
            transition: background .18s, color .18s;
        }
        .sidebar-cat-item:hover {
            background: rgba(56, 232, 255, .07);
            color: #dbe6ff;
        }
        .sidebar-cat-icon {
            width: 30px;
            height: 30px;
            border-radius: 9px;
            background: linear-gradient(135deg, rgba(43, 127, 255, .22), rgba(56, 232, 255, .1));
            border: 1px solid rgba(56, 232, 255, .18);
            display: flex;
            align-items: center;
            justify-content: center;
            color: #38E8FF;
            font-size: 13px;
            flex: 0 0 auto;
        }
        .sidebar-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 8px;
        }
        .tag-pill {
            display: inline-block;
            padding: 4px 12px;
            border-radius: 999px;
            color: #7F93B3;
            background: rgba(255, 255, 255, .04);
            border: 1px solid rgba(141, 180, 255, .14);
            font-size: 12px;
        }
        .tag-pill:hover {
            color: #c6d6f2;
            border-color: rgba(56, 232, 255, .35);
        }

        .subscribe-form {
            margin-top: 12px;
            display: flex;
            gap: 8px;
        }
        .subscribe-input {
            flex: 1;
            height: 42px;
            min-width: 0;
            border-radius: 12px;
            border: 1px solid rgba(141, 180, 255, .24);
            background: rgba(255, 255, 255, .04);
            padding: 0 14px;
            color: #E7EEF9;
            font-size: 14px;
            outline: none;
        }
        .subscribe-input:focus {
            border-color: var(--primary);
            box-shadow: 0 0 0 3px rgba(43, 127, 255, .13);
        }
        .subscribe-input::placeholder {
            color: #64748B;
        }
        .subscribe-btn {
            height: 42px;
            padding: 0 15px;
            border-radius: 12px;
            border: none;
            background: linear-gradient(135deg, #2B7FFF, #1593ff);
            color: #fff;
            font-size: 14px;
            font-weight: 600;
            cursor: pointer;
            box-shadow: 0 6px 22px rgba(43, 127, 255, .3);
            transition: transform .18s, box-shadow .18s;
        }
        .subscribe-btn:hover {
            transform: translateY(-2px);
            box-shadow: 0 10px 28px rgba(43, 127, 255, .4);
        }
        .subscribe-btn:active {
            transform: translateY(0);
            box-shadow: 0 2px 10px rgba(43, 127, 255, .25);
        }

        .related-row {
            display: grid;
            gap: 16px;
            margin-top: 14px;
        }
        @media (min-width: 640px) {
            .related-row {
                grid-template-columns: 1fr 1fr;
            }
        }
        .related-card {
            display: flex;
            gap: 14px;
            align-items: center;
            padding: 12px;
            border-radius: 16px;
            background: linear-gradient(150deg, rgba(255, 255, 255, .055), rgba(255, 255, 255, .01));
            border: 1px solid rgba(141, 180, 255, .17);
            transition: transform .2s, border-color .2s, background .2s;
        }
        .related-card:hover {
            transform: translateY(-3px);
            border-color: rgba(56, 232, 255, .4);
            background: rgba(43, 127, 255, .05);
        }
        .related-thumb {
            width: 86px;
            height: 86px;
            border-radius: 14px;
            object-fit: cover;
            flex: 0 0 auto;
            border: 1px solid rgba(141, 180, 255, .14);
            background: var(--bg-3);
        }
        .related-info {
            min-width: 0;
        }
        .related-title {
            font-size: 15px;
            font-weight: 600;
            color: #D9E4F5;
            line-height: 1.5;
            overflow: hidden;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
        }
        .related-card:hover .related-title {
            color: #fff;
        }
        .related-desc {
            font-size: 12px;
            color: #6b7f9d;
            margin-top: 5px;
        }
        .back-home-btn {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            height: 42px;
            padding: 0 18px;
            border-radius: 12px;
            border: 1px solid rgba(141, 180, 255, .2);
            background: rgba(255, 255, 255, .04);
            color: #A7B7D4;
            font-size: 14px;
            backdrop-filter: blur(8px);
            transition: all .2s;
        }
        .back-home-btn:hover {
            border-color: rgba(56, 232, 255, .35);
            color: #fff;
            background: rgba(56, 232, 255, .07);
        }
        .back-home-btn svg {
            width: 16px;
            height: 16px;
        }

        .cta-final {
            margin: 20px auto 70px;
            max-width: 1280px;
        }
        .cta-box {
            border-radius: 26px;
            background: linear-gradient(145deg, rgba(43, 127, 255, .16), rgba(17, 28, 48, .85) 55%), url("/assets/images/backpic/back-2.webp") center / cover no-repeat;
            border: 1px solid rgba(141, 180, 255, .18);
            padding: 44px 32px;
            overflow: hidden;
            position: relative;
        }
        .cta-box::after {
            content: "";
            position: absolute;
            inset: 0;
            border-radius: 26px;
            pointer-events: none;
            background: radial-gradient(circle at 78% 20%, rgba(56, 232, 255, .18), transparent 40%);
        }
        .btn-primary {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            column-gap: 8px;
            height: 48px;
            padding: 0 25px;
            border-radius: 13px;
            color: #fff;
            font-weight: 600;
            font-size: 15px;
            background: linear-gradient(135deg, #2B7FFF, #1593ff);
            box-shadow: 0 12px 30px rgba(43, 127, 255, .36), 0 0 0 1px rgba(56, 232, 255, .14) inset;
            border: none;
            transition: transform .2s, box-shadow .2s, background .2s;
        }
        .btn-primary:hover {
            transform: translateY(-2px);
            box-shadow: 0 16px 40px rgba(43, 127, 255, .5);
            background: linear-gradient(135deg, #348cff, #25a8ff);
        }
        .btn-primary:active {
            transform: translateY(0);
        }
        .btn-ghost {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            column-gap: 8px;
            height: 48px;
            padding: 0 24px;
            border-radius: 13px;
            color: #C9D9F2;
            font-weight: 500;
            font-size: 15px;
            border: 1px solid rgba(141, 180, 255, .3);
            background: rgba(255, 255, 255, .04);
            backdrop-filter: blur(14px);
            transition: background .2s, border-color .2s, transform .2s;
        }
        .btn-ghost:hover {
            border-color: rgba(56, 232, 255, .45);
            background: rgba(56, 232, 255, .09);
            transform: translateY(-2px);
            color: #fff;
        }
        .btn-ghost:active {
            transform: translateY(0);
        }
        .qrcode-placeholder {
            width: 92px;
            height: 92px;
            border-radius: 18px;
            background: rgba(255, 255, 255, .07);
            border: 1px solid rgba(255, 255, 255, .18);
            display: flex;
            align-items: center;
            justify-content: center;
            color: #dbe6ff;
        }
        .qrcode-placeholder svg {
            width: 34px;
            height: 34px;
            opacity: .75;
        }

        .footer {
            background: #070B14;
            border-top: 1px solid rgba(141, 180, 255, .1);
            padding: 52px 0 20px;
        }
        .footer-brand {
            font-size: 19px;
            font-weight: 800;
            color: #F0F4FF;
            letter-spacing: -.01em;
        }
        .footer-col-title {
            font-size: 14px;
            color: #E7EEF9;
            font-weight: 600;
            margin-bottom: 14px;
        }
        .footer-link {
            display: block;
            font-size: 13px;
            color: #64748B;
            line-height: 1.6;
            margin-bottom: 11px;
            transition: color .2s;
        }
        .footer-link:hover {
            color: #8adbff;
        }

        @media (max-width: 767px) {
            .site-header {
                height: 64px;
            }
            .header-row {
                height: 64px;
            }
            .article-banner {
                margin-top: 64px;
                min-height: 170px;
            }
            .post-title {
                font-size: 26px;
            }
            .cta-box {
                padding: 30px 22px;
            }
            .cta-actions {
                display: flex;
                flex-direction: column;
                gap: 12px;
            }
            .cta-actions .btn-primary,
            .cta-actions .btn-ghost {
                width: 100%;
                height: 48px;
            }
            .qrcode-wrap {
                width: 100%;
                justify-content: flex-start;
            }
            .header-status {
                gap: 8px;
            }
        }

        @media (prefers-reduced-motion: reduce) {
            *,
            *::before,
            *::after {
                animation: none !important;
                transition: none !important;
                scroll-behavior: auto !important;
            }
        }

/* roulang page: category1 */
:root{
  --bg:#070B14;
  --bg2:#0C1322;
  --bg3:#111C30;
  --primary:#2B7FFF;
  --cyan:#38E8FF;
  --amber:#F5B544;
  --green:#30D5A0;
  --text:#F0F4FF;
  --muted:#A7B7D4;
  --weak:#64748B;
  --line:rgba(141,180,255,.16);
  --cardline:rgba(141,180,255,.22);
  --glass-hi:rgba(255,255,255,.08);
  --glass-lo:rgba(255,255,255,.02);
  --radius:16px;
  --radius-lg:24px;
  --shadow:0 10px 30px rgba(0,0,0,.28);
  --shadow-lg:0 18px 50px rgba(5,10,30,.5);
}

*{
  box-sizing:border-box;
}
html{
  scroll-behavior:smooth;
}
body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:"PingFang SC","Microsoft YaHei","Noto Sans CJK SC",sans-serif;
  line-height:1.75;
  -webkit-font-smoothing:antialiased;
  font-size:16px;
  overflow-x:hidden;
}
a{
  color:inherit;
  text-decoration:none;
}
img{
  display:block;
  max-width:100%;
  border:0;
}
button{
  font:inherit;
  color:inherit;
  background:none;
  border:0;
  cursor:pointer;
}
ul,ol{
  margin:0;
  padding:0;
  list-style:none;
}
h1,h2,h3,h4,p{
  margin-top:0;
}
::selection{
  background:rgba(43,127,255,.35);
  color:#fff;
}
::-webkit-scrollbar{
  width:9px;
}
::-webkit-scrollbar-thumb{
  background:linear-gradient(180deg,#2B7FFF,#183B6B);
  border-radius:30px;
}
::-webkit-scrollbar-track{
  background:#070B14;
}
:focus-visible{
  outline:2px solid rgba(56,232,255,.8);
  outline-offset:3px;
  border-radius:6px;
}
.ui-container{
  width:100%;
  max-width:1280px;
  margin-inline:auto;
  padding-inline:24px;
}

/* Header */
.site-header{
  position:fixed;
  inset:0 0 auto 0;
  z-index:70;
  height:72px;
  background:rgba(7,11,20,.68);
  -webkit-backdrop-filter:blur(18px);
  backdrop-filter:blur(18px);
  border-bottom:1px solid rgba(141,180,255,.1);
  transition:background .35s ease, box-shadow .35s ease;
}
.site-header.scrolled{
  background:rgba(7,11,20,.9);
  box-shadow:0 10px 30px rgba(0,0,0,.28);
}
.brand{
  transition:opacity .2s;
}
.brand:hover{
  opacity:.88;
}
.logo-mark{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  width:36px;
  height:36px;
  border-radius:12px;
  font-weight:800;
  font-size:15px;
  color:#04101F;
  background:linear-gradient(135deg,#2B7FFF,#38E8FF);
  box-shadow:0 0 18px rgba(43,127,255,.5);
}
.brand-text{
  font-size:20px;
  font-weight:800;
  letter-spacing:-.02em;
  color:#F0F4FF;
  white-space:nowrap;
}
.nav-center{
  display:flex;
  align-items:center;
  justify-content:center;
  gap:0;
}
.nav-channel{
  position:relative;
  padding:8px 4px;
  margin:0 18px;
  font-size:15px;
  font-weight:600;
  color:var(--muted);
  white-space:nowrap;
  transition:color .2s;
}
.nav-channel::after{
  content:"";
  position:absolute;
  left:0;
  right:0;
  bottom:-6px;
  height:2px;
  border-radius:99px;
  background:linear-gradient(90deg,#2B7FFF,#38E8FF);
  box-shadow:0 0 12px rgba(56,232,255,.75);
  opacity:0;
  transition:opacity .2s;
}
.nav-channel:hover,
.nav-channel.active{
  color:#fff;
}
.nav-channel.active::after,
.nav-channel:hover::after{
  opacity:1;
}
.ti-pill{
  display:inline-flex;
  align-items:center;
  gap:7px;
  height:30px;
  padding:0 12px;
  border-radius:99px;
  font-size:12px;
  color:#C5D3EC;
  background:rgba(255,255,255,.06);
  border:1px solid rgba(141,180,255,.15);
  -webkit-backdrop-filter:blur(10px);
  backdrop-filter:blur(10px);
  box-shadow:inset 0 1px 0 rgba(255,255,255,.08);
  white-space:nowrap;
}
.live-dot{
  width:6px;
  height:6px;
  border-radius:50%;
  background:var(--green);
  box-shadow:0 0 10px rgba(48,213,160,.8);
}
.btn-primary{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  min-height:44px;
  padding:10px 20px;
  border-radius:12px;
  font-size:15px;
  font-weight:700;
  color:#fff;
  border:1px solid rgba(255,255,255,.15);
  background:linear-gradient(135deg,#236BF0,#2B7FFF 55%,#38E8FF 150%);
  box-shadow:0 8px 24px rgba(43,127,255,.35), inset 0 1px 0 rgba(255,255,255,.25);
  transition:transform .22s, box-shadow .22s, background .22s;
  white-space:nowrap;
}
.btn-primary:hover{
  transform:translateY(-2px);
  box-shadow:0 12px 32px rgba(43,127,255,.55), inset 0 1px 0 rgba(255,255,255,.3);
}
.btn-primary:active{
  transform:translateY(0);
  box-shadow:0 4px 14px rgba(43,127,255,.35);
}
.btn-primary:focus-visible{
  outline:2px solid var(--cyan);
  outline-offset:3px;
}
.btn-primary.btn-sm{
  height:40px;
  min-height:40px;
  padding:0 18px;
  font-size:14px;
  border-radius:11px;
}
.btn-ghost{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  min-height:46px;
  padding:10px 22px;
  border-radius:12px;
  font-size:15px;
  font-weight:600;
  color:#D6E4FF;
  background:rgba(255,255,255,.06);
  border:1px solid rgba(141,180,255,.26);
  -webkit-backdrop-filter:blur(8px);
  backdrop-filter:blur(8px);
  box-shadow:inset 0 1px 0 rgba(255,255,255,.08);
  transition:transform .22s, background .22s, border-color .22s, box-shadow .22s;
}
.btn-ghost:hover{
  transform:translateY(-2px);
  background:rgba(255,255,255,.1);
  border-color:rgba(56,232,255,.4);
  box-shadow:0 10px 26px rgba(0,0,0,.3);
}
.btn-ghost:active{
  transform:translateY(0);
}
.btn-ghost:focus-visible{
  outline:2px solid var(--cyan);
  outline-offset:3px;
}

.mobile-burger{
  display:inline-flex;
  flex-direction:column;
  justify-content:center;
  gap:5px;
  width:42px;
  height:42px;
  border-radius:12px;
  padding:0 10px;
  border:1px solid rgba(141,180,255,.2);
  background:rgba(255,255,255,.05);
}
.mobile-burger span{
  display:block;
  width:100%;
  height:2px;
  border-radius:3px;
  background:#D6E4FF;
  transition:transform .25s, opacity .25s;
}
.mobile-burger.open span:nth-child(1){
  transform:translateY(7px) rotate(45deg);
}
.mobile-burger.open span:nth-child(2){
  opacity:0;
}
.mobile-burger.open span:nth-child(3){
  transform:translateY(-7px) rotate(-45deg);
}
.mobile-menu{
  position:fixed;
  inset:0 0 0 auto;
  z-index:90;
  width:min(82vw,340px);
  padding:100px 28px 36px;
  background:rgba(9,15,28,.94);
  -webkit-backdrop-filter:blur(24px);
  backdrop-filter:blur(24px);
  border-left:1px solid rgba(141,180,255,.15);
  transform:translateX(100%);
  transition:transform .3s ease;
  box-shadow:-20px 0 50px rgba(0,0,0,.4);
}
.mobile-menu.open{
  transform:translateX(0);
}
.mobile-menu .drawer-links{
  display:flex;
  flex-direction:column;
  gap:4px;
}
.mobile-menu .drawer-links a{
  display:flex;
  align-items:center;
  min-height:52px;
  font-size:16px;
  font-weight:600;
  color:var(--muted);
  border-bottom:1px solid rgba(141,180,255,.08);
  transition:color .2s, padding-left .2s;
}
.mobile-menu .drawer-links a:hover,
.mobile-menu .drawer-links a.active{
  color:#fff;
  padding-left:6px;
}
.mobile-menu .drawer-download{
  margin-top:28px;
  display:grid;
  gap:12px;
}
.menu-scrim{
  position:fixed;
  inset:0;
  z-index:80;
  background:rgba(4,7,14,.6);
  opacity:0;
  pointer-events:none;
  transition:opacity .3s;
}
.menu-scrim.show{
  opacity:1;
  pointer-events:auto;
}

main{
  padding-top:72px;
}

/* Hero */
.cat-hero{
  position:relative;
  overflow:hidden;
  padding:56px 0 72px;
  background:
    radial-gradient(900px 420px at 20% 0%, rgba(43,127,255,.22), transparent 62%),
    radial-gradient(760px 360px at 86% 18%, rgba(56,232,255,.08), transparent 56%),
    linear-gradient(0deg, rgba(7,11,20,.9), rgba(7,11,20,.72)),
    url("/assets/images/backpic/back-1.webp") center/cover no-repeat;
}
.cat-hero::before{
  content:"";
  position:absolute;
  inset:0;
  background-image:
    linear-gradient(rgba(70,130,235,.1) 1px, transparent 1px),
    linear-gradient(90deg, rgba(70,130,235,.1) 1px, transparent 1px);
  background-size:48px 48px;
  -webkit-mask-image:radial-gradient(circle at center, #000, transparent 80%);
  mask-image:radial-gradient(circle at center, #000, transparent 80%);
  pointer-events:none;
}
.cat-hero .ui-container{
  position:relative;
  z-index:2;
}
.breadcrumb{
  display:flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  color:var(--weak);
  font-size:13px;
  margin-bottom:18px;
}
.breadcrumb a{
  color:var(--muted);
  transition:color .2s;
}
.breadcrumb a:hover{
  color:#fff;
}
.breadcrumb svg{
  width:14px;
  height:14px;
  opacity:.7;
}
.hero-badges{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  flex-wrap:wrap;
  gap:8px;
  margin-bottom:16px;
}
.hero-badges .glass-chip{
  display:inline-flex;
  align-items:center;
  gap:6px;
  height:28px;
  padding:0 12px;
  border-radius:99px;
  font-size:12px;
  color:#C5D3EC;
  background:rgba(255,255,255,.05);
  border:1px solid rgba(141,180,255,.16);
  -webkit-backdrop-filter:blur(10px);
  backdrop-filter:blur(10px);
}
.glass-chip .dot-green{
  width:6px;
  height:6px;
  border-radius:50%;
  background:var(--green);
  box-shadow:0 0 8px var(--green);
}
.cat-hero-title{
  margin:0 0 14px;
  font-size:clamp(32px,5.2vw,58px);
  line-height:1.18;
  font-weight:800;
  letter-spacing:-.025em;
  color:#fff;
  text-wrap:balance;
}
.text-glow{
  background:linear-gradient(90deg,#A9C9FF,#38E8FF);
  -webkit-background-clip:text;
  background-clip:text;
  color:transparent;
  padding-bottom:.08em;
}
.cat-hero-lead{
  margin:0 auto 28px;
  max-width:720px;
  color:var(--muted);
  font-size:17px;
  line-height:1.8;
}
.hero-actions{
  display:flex;
  justify-content:center;
  align-items:center;
  flex-wrap:wrap;
  gap:14px;
  margin-bottom:20px;
}
.hero-meta-line{
  display:flex;
  align-items:center;
  justify-content:center;
  flex-wrap:wrap;
  gap:10px;
  color:var(--weak);
  font-size:13px;
}

/* Metrics */
.metric-strip{
  background:linear-gradient(180deg, rgba(12,19,34,.9), rgba(7,11,20,.6));
  border-block:1px solid rgba(141,180,255,.09);
}
.metric-wrap{
  display:grid;
  grid-template-columns:repeat(4,1fr);
}
.metric-item{
  padding:26px 24px;
  text-align:center;
  border-right:1px solid rgba(141,180,255,.09);
}
.metric-item:first-child{
  border-left:1px solid rgba(141,180,255,.09);
}
.metric-item strong{
  display:block;
  font-size:26px;
  font-weight:800;
  letter-spacing:-.02em;
  color:#fff;
  font-variant-numeric:tabular-nums;
}
.metric-item strong .unit{
  font-size:13px;
  color:var(--cyan);
  font-weight:600;
  margin-left:2px;
}
.metric-item span{
  display:block;
  margin-top:4px;
  color:var(--weak);
  font-size:13px;
}

/* Section base */
.sec{
  padding:88px 0;
}
.sec-head{
  margin-bottom:38px;
}
.kicker{
  display:inline-flex;
  align-items:center;
  gap:8px;
  font-size:13px;
  font-weight:700;
  letter-spacing:.06em;
  color:var(--cyan);
  text-transform:uppercase;
  margin-bottom:12px;
}
.kicker::before{
  content:"";
  width:20px;
  height:1px;
  background:linear-gradient(90deg, transparent, var(--cyan));
}
.sec-title{
  margin:0 0 14px;
  font-size:clamp(25px,3.4vw,36px);
  font-weight:800;
  letter-spacing:-.02em;
  line-height:1.28;
}
.sec-desc{
  max-width:660px;
  color:var(--muted);
  font-size:15px;
  line-height:1.85;
  margin-bottom:0;
}
.glass-card{
  background:linear-gradient(180deg, rgba(255,255,255,.07), rgba(255,255,255,.02));
  border:1px solid rgba(141,180,255,.2);
  -webkit-backdrop-filter:blur(12px);
  backdrop-filter:blur(12px);
  border-radius:var(--radius);
  box-shadow:0 10px 30px rgba(0,0,0,.24), inset 0 1px 0 rgba(255,255,255,.05);
}

/* Steps / timeline */
.step-section{
  background:linear-gradient(180deg, rgba(7,11,20,0) 0%, rgba(12,19,34,.7) 20%, rgba(12,19,34,.7) 80%, rgba(7,11,20,0) 100%);
}
.step-intro .kicker{
  color:var(--amber);
}
.step-intro .sec-title{
  font-size:clamp(26px,3.2vw,36px);
}
.timeline-side-note{
  margin-top:26px;
  padding:18px 20px;
  border-radius:16px;
  background:rgba(43,127,255,.06);
  border:1px solid rgba(43,127,255,.18);
}
.timeline-side-note .note-title{
  display:flex;
  align-items:center;
  gap:8px;
  font-weight:700;
  font-size:15px;
  margin-bottom:10px;
}
.timeline-side-note ul{
  display:grid;
  gap:8px;
}
.timeline-side-note li{
  display:flex;
  gap:8px;
  color:var(--muted);
  font-size:14px;
  line-height:1.7;
}
.timeline-side-note li::before{
  content:"";
  flex:0 0 auto;
  width:5px;
  height:5px;
  border-radius:50%;
  background:var(--primary);
  margin-top:9px;
  box-shadow:0 0 8px rgba(43,127,255,.8);
}
.timeline{
  position:relative;
}
.tln-item{
  display:grid;
  grid-template-columns:44px 1fr;
  gap:16px;
}
.tln-item:not(:last-child){
  margin-bottom:22px;
}
.tln-marker{
  position:relative;
  text-align:center;
}
.tln-marker .dot{
  position:relative;
  z-index:2;
  display:flex;
  align-items:center;
  justify-content:center;
  width:38px;
  height:38px;
  border-radius:50%;
  font-size:14px;
  font-weight:800;
  color:var(--cyan);
  background:linear-gradient(145deg, rgba(30,50,90,.9), rgba(9,15,30,.95));
  border:1px solid rgba(56,232,255,.55);
  box-shadow:0 0 16px rgba(56,232,255,.25), inset 0 0 10px rgba(56,232,255,.05);
  font-variant-numeric:tabular-nums;
}
.tln-item:not(:last-child) .tln-marker::before{
  content:"";
  position:absolute;
  left:50%;
  top:42px;
  bottom:-22px;
  width:1px;
  transform:translateX(-50%);
  background:linear-gradient(180deg, rgba(56,232,255,.45), rgba(43,127,255,.06));
}
.tln-card{
  background:linear-gradient(180deg, rgba(255,255,255,.07), rgba(255,255,255,.02));
  border:1px solid rgba(141,180,255,.18);
  -webkit-backdrop-filter:blur(12px);
  backdrop-filter:blur(12px);
  border-radius:16px;
  padding:18px 22px 20px;
  transition:border-color .25s, box-shadow .25s, transform .25s;
}
.tln-card h3{
  display:flex;
  align-items:center;
  gap:8px;
  margin:0 0 8px;
  font-size:17px;
  font-weight:700;
  color:#fff;
}
.tln-card h3 .step-tag{
  display:inline-flex;
  align-items:center;
  height:22px;
  padding:0 8px;
  font-size:11px;
  border-radius:6px;
  color:var(--cyan);
  background:rgba(56,232,255,.08);
  border:1px solid rgba(56,232,255,.2);
  font-weight:600;
}
.tln-card p{
  margin:0;
  color:var(--muted);
  font-size:14px;
  line-height:1.85;
}
.tln-card:hover{
  transform:translateY(-2px);
  border-color:rgba(43,127,255,.45);
  box-shadow:0 14px 40px rgba(5,10,30,.45);
}
.step-cta{
  margin-top:26px;
  display:inline-flex;
}

/* Version */
.version-section{
  background:linear-gradient(180deg, rgba(7,11,20,0), rgba(12,19,34,.55), rgba(7,11,20,0));
}
.version-card{
  padding:28px;
  border-radius:20px;
  position:relative;
  overflow:hidden;
}
.version-card .ver-top{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  margin-bottom:20px;
}
.version-card h3{
  margin:0;
  font-size:22px;
  font-weight:800;
}
.ver-tag{
  display:inline-flex;
  align-items:center;
  gap:5px;
  height:26px;
  padding:0 10px;
  border-radius:99px;
  font-size:12px;
  color:var(--green);
  background:rgba(48,213,160,.1);
  border:1px solid rgba(48,213,160,.3);
  white-space:nowrap;
}
.ver-meta-grid{
  display:grid;
  grid-template-columns:repeat(3,1fr);
  gap:12px;
  margin-bottom:20px;
}
.ver-meta-item{
  padding:14px 14px;
  border-radius:12px;
  background:rgba(255,255,255,.04);
  border:1px solid rgba(141,180,255,.1);
}
.ver-meta-item span{
  display:block;
  font-size:12px;
  color:var(--weak);
}
.ver-meta-item strong{
  display:block;
  margin-top:2px;
  font-size:15px;
  font-weight:700;
  color:#E8EFFD;
  font-variant-numeric:tabular-nums;
}
.ver-log-title{
  display:flex;
  align-items:center;
  gap:8px;
  font-size:14px;
  font-weight:700;
  margin-bottom:12px;
  color:#BFD1F2;
}
.ver-log-list{
  display:grid;
  gap:9px;
}
.ver-log-list li{
  display:flex;
  gap:9px;
  align-items:flex-start;
  color:var(--muted);
  font-size:14px;
  line-height:1.7;
}
.ver-log-list li::before{
  content:"";
  flex:0 0 auto;
  width:5px;
  height:5px;
  border-radius:50%;
  margin-top:8px;
  background:linear-gradient(135deg,#2B7FFF,#38E8FF);
}
.checks-card{
  padding:22px;
  border-radius:20px;
}
.checks-card .img-holder{
  border-radius:16px;
  overflow:hidden;
  border:1px solid rgba(141,180,255,.2);
  margin-bottom:18px;
  position:relative;
}
.checks-card img{
  width:100%;
  height:210px;
  object-fit:cover;
}
.check-title{
  font-size:17px;
  font-weight:700;
  margin-bottom:12px;
}
.check-list{
  display:grid;
  gap:10px;
}
.check-list li{
  display:flex;
  gap:10px;
  align-items:flex-start;
  color:var(--muted);
  font-size:14px;
  line-height:1.7;
}
.check-list li svg{
  flex:0 0 auto;
  width:17px;
  height:17px;
  margin-top:2px;
  color:var(--green);
}

/* Troubleshoot guard section */
.guard-tip-list{
  display:grid;
  gap:16px;
}
.guard-tip{
  display:grid;
  grid-template-columns:82px 1fr;
  gap:22px;
  padding:24px 26px;
  border-radius:20px;
  background:linear-gradient(180deg, rgba(255,255,255,.05), rgba(255,255,255,.01));
  border:1px solid rgba(141,180,255,.15);
  transition:border-color .2s, transform .2s;
}
.guard-tip:hover{
  border-color:rgba(43,127,255,.4);
  transform:translateX(4px);
}
.guard-tip .guard-num{
  font-size:18px;
  font-weight:800;
  color:transparent;
  -webkit-background-clip:text;
  background-clip:text;
  background-image:linear-gradient(135deg,#2B7FFF,#38E8FF);
  opacity:.9;
}
.guard-tip h3{
  margin:0 0 8px;
  font-size:17px;
  font-weight:700;
  color:#fff;
}
.guard-tip p{
  margin:0;
  color:var(--muted);
  font-size:14px;
  line-height:1.85;
}
.guard-tip p code{
  color:var(--cyan);
  font-size:13px;
  background:rgba(56,232,255,.08);
  border:1px solid rgba(56,232,255,.14);
  padding:1px 6px;
  border-radius:6px;
  font-family:"SFMono-Regular",Consolas,monospace;
}
.guard-aside{
  padding:30px 28px;
  border-radius:20px;
  overflow:hidden;
}
.guard-aside h3{
  margin:0 0 14px;
  font-size:21px;
  font-weight:800;
}
.guard-aside p{
  color:var(--muted);
  font-size:14px;
  line-height:1.85;
  margin-bottom:18px;
}

/* FAQ */
.faq-section{
  background:linear-gradient(180deg, rgba(12,19,34,.55), rgba(7,11,20,0));
}
.faq-list{
  display:grid;
  gap:12px;
}
.faq-item{
  border-radius:16px;
  background:linear-gradient(180deg, rgba(255,255,255,.05), rgba(255,255,255,.01));
  border:1px solid rgba(141,180,255,.16);
  overflow:hidden;
  transition:border-color .25s, box-shadow .25s;
}
.faq-item.is-open{
  border-color:rgba(43,127,255,.4);
  box-shadow:0 10px 30px rgba(0,0,0,.25);
}
.faq-q{
  width:100%;
  min-height:62px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  text-align:left;
  padding:16px 20px;
  color:#E4EBFA;
  font-size:15px;
  font-weight:600;
  line-height:1.55;
}
.faq-q .faq-icon{
  flex:0 0 auto;
  position:relative;
  width:28px;
  height:28px;
  border-radius:50%;
  border:1px solid rgba(141,180,255,.3);
  background:rgba(43,127,255,.08);
  transition:transform .3s, background .3s, border-color .3s;
}
.faq-q .faq-icon::before,
.faq-q .faq-icon::after{
  content:"";
  position:absolute;
  left:50%;
  top:50%;
  width:12px;
  height:1.5px;
  background:var(--cyan);
  transform:translate(-50%,-50%);
}
.faq-q .faq-icon::after{
  transform:translate(-50%,-50%) rotate(90deg);
  transition:transform .3s;
}
.faq-item.is-open .faq-icon{
  transform:rotate(180deg);
}
.faq-item.is-open .faq-icon::after{
  transform:translate(-50%,-50%) rotate(0deg);
}
.faq-a{
  max-height:0;
  overflow:hidden;
  transition:max-height .35s ease;
}
.faq-item.is-open .faq-a{
  max-height:320px;
}
.faq-answer{
  padding:0 20px 18px;
  color:var(--muted);
  font-size:14px;
  line-height:1.85;
}
.faq-side-note{
  padding:22px 24px;
  margin-top:32px;
  border-radius:16px;
  background:rgba(43,127,255,.06);
  border:1px solid rgba(43,127,255,.18);
}
.faq-side-note h4{
  margin:0 0 8px;
  font-size:16px;
  font-weight:700;
}
.faq-side-note p{
  margin:0;
  color:var(--muted);
  font-size:14px;
  line-height:1.8;
}

/* CTA */
.cta-section{
  position:relative;
  padding:80px 0 90px;
  background:
    radial-gradient(720px 340px at 50% 0%, rgba(43,127,255,.22), transparent 65%),
    linear-gradient(180deg, rgba(7,11,20,.84), rgba(11,18,34,.94)),
    url("/assets/images/backpic/back-2.webp") center/cover no-repeat;
  border-block:1px solid rgba(141,180,255,.1);
}
.cta-box{
  position:relative;
  z-index:2;
  padding:38px;
  border-radius:24px;
  background:linear-gradient(180deg, rgba(255,255,255,.09), rgba(255,255,255,.03));
  border:1px solid rgba(141,180,255,.24);
  -webkit-backdrop-filter:blur(14px);
  backdrop-filter:blur(14px);
  box-shadow:0 20px 50px rgba(0,0,0,.4), inset 0 1px 0 rgba(255,255,255,.09);
  display:grid;
  grid-template-columns:1.15fr .85fr;
  gap:34px;
  align-items:center;
}
.cta-box h2{
  margin:0 0 10px;
  font-size:clamp(24px,3vw,34px);
  font-weight:800;
  letter-spacing:-.02em;
  line-height:1.25;
}
.cta-box .cta-sub{
  color:var(--muted);
  font-size:15px;
  line-height:1.8;
  margin-bottom:22px;
  max-width:560px;
}
.cta-actions{
  display:flex;
  flex-wrap:wrap;
  gap:12px;
}
.cta-face{
  border-left:1px solid rgba(141,180,255,.16);
  padding-left:34px;
  text-align:center;
}
.qr-holder{
  display:grid;
  place-items:center;
}
.qr-holder svg{
  border-radius:14px;
}
.cta-face .qr-note{
  margin-top:14px;
  font-size:13px;
  color:var(--weak);
  line-height:1.7;
}

/* Footer */
.footer{
  background:#070B14;
  border-top:1px solid rgba(141,180,255,.1);
  padding:64px 0 0;
}
.footer .logo-mark{
  width:30px;
  height:30px;
  font-size:12px;
  border-radius:9px;
}
.footer-brand{
  font-size:18px;
  font-weight:800;
  color:#F0F4FF;
  letter-spacing:-.02em;
}
.footer-col-title{
  color:#C6D4EC;
  font-size:14px;
  font-weight:700;
  margin-bottom:16px;
}
.footer-link{
  display:inline-block;
  color:var(--weak);
  font-size:13px;
  line-height:1.4;
  margin:10px 0;
  transition:color .2s, transform .2s;
}
.footer-link:hover{
  color:#fff;
}

@media (max-width:1023px){
  .nav-center{
    display:none;
  }
  .metric-wrap{
    grid-template-columns:repeat(2,1fr);
  }
  .metric-item:nth-child(2){
    border-right:0;
  }
  .metric-item:nth-child(-n+2){
    border-bottom:1px solid rgba(141,180,255,.08);
  }
  .cta-box{
    grid-template-columns:1fr;
  }
  .cta-face{
    border-left:0;
    border-top:1px solid rgba(141,180,255,.15);
    padding-left:0;
    padding-top:24px;
  }
}
@media (max-width:767px){
  .ui-container{
    padding-inline:16px;
  }
  .sec{
    padding:60px 0;
  }
  .cat-hero{
    padding-top:30px;
  }
  .brand-text{
    font-size:17px;
  }
  .cat-hero-title{
    font-size:32px;
  }
  .cat-hero-lead{
    font-size:15px;
  }
  .metric-item{
    padding:22px 10px;
  }
  .metric-item strong{
    font-size:22px;
  }
  .timeline-side-note,
  .ver-tag,
  .version-card .ver-top{
    align-items:flex-start;
  }
  .version-card{
    padding:20px;
  }
  .ver-meta-grid{
    grid-template-columns:1fr 1fr;
  }
  .guard-tip{
    grid-template-columns:1fr;
    gap:8px;
    padding:20px;
  }
  .cta-box{
    padding:24px 18px;
  }
  .hero-actions .btn-primary,
  .hero-actions .btn-ghost{
    width:100%;
  }
  .hero-meta-line{
    font-size:12px;
  }
}
@media (max-width:520px){
  .btn-primary.btn-sm{
    display:none;
  }
  .mobile-burger{
    display:inline-flex;
  }
}
@media (prefers-reduced-motion: reduce){
  *{
    animation-duration:.001s !important;
    transition-duration:.001s !important;
  }
  html{
    scroll-behavior:auto;
  }
}

/* roulang page: category2 */
:root{
  --bg-deep:#070B14;
  --bg-deck:#0C1322;
  --bg-panel:#111C30;
  --primary:#2B7FFF;
  --cyan:#38E8FF;
  --amber:#F5B544;
  --green:#30D5A0;
  --text-hi:#F0F4FF;
  --text-mid:#A7B7D4;
  --text-low:#64748B;
  --line:rgba(141,180,255,.2);
  --glass-top:rgba(255,255,255,.08);
  --glass-bottom:rgba(255,255,255,.02);
  --radius-card:16px;
  --radius-large:24px;
  --shadow-card:0 10px 30px rgba(0,0,0,.28);
}
*{box-sizing:border-box}
html,body{margin:0;padding:0}
body{
  background:var(--bg-deep);
  color:var(--text-hi);
  font-family:"PingFang SC","Microsoft YaHei","Noto Sans CJK SC",sans-serif;
  line-height:1.8;
  font-size:16px;
  font-variant-numeric:tabular-nums;
}
img,svg{max-width:100%;height:auto}
a{color:inherit;text-decoration:none}
button{font-family:inherit}
.container{max-width:1280px;margin-inline:auto;padding-inline:24px}
.ui-container{max-width:1280px;margin-inline:auto;padding-inline:24px}
.section{padding-block:96px}
.section-head{margin-bottom:48px}
.section-kicker{
  display:inline-flex;align-items:center;gap:6px;
  font-size:13px;font-weight:600;color:var(--cyan);
  letter-spacing:.02em;
  background:rgba(56,232,255,.08);
  border:1px solid rgba(56,232,255,.18);
  padding:6px 14px;border-radius:999px;
  margin-bottom:16px;
}
.section-title{font-size:34px;font-weight:700;letter-spacing:-.02em;line-height:1.25;margin:0}
.section-sub{color:var(--text-mid);max-width:680px;font-size:16px;margin-top:10px}



/* Header */
.site-header{
  border-bottom:1px solid rgba(255,255,255,.09);
  background:rgba(7,11,20,.58);
  backdrop-filter:blur(16px);
  -webkit-backdrop-filter:blur(16px);
  transition:background .35s ease,border-color .35s ease;
}
.site-header.scrolled{
  background:rgba(7,11,20,.86);
  border-bottom:1px solid rgba(141,180,255,.15);
}
.brand-area{display:flex;align-items:center;gap:10px;flex:1}
.logo-mark{
  width:36px;height:36px;border-radius:12px;
  background:linear-gradient(135deg,#2B7FFF,#38E8FF);
  color:#08112b;font-size:19px;font-weight:800;
  display:flex;align-items:center;justify-content:center;
  box-shadow:0 0 24px rgba(43,127,255,.35);
}
.brand-text{font-size:19px;font-weight:800;letter-spacing:-.02em;color:var(--text-hi)}
.brand-domain{color:#526681;font-size:11px;font-weight:500;display:none}
@media(min-width:640px){.brand-domain{display:inline-block}}
.nav-center{gap:26px;left:50%;top:50%;transform:translate(-50%,-50%);white-space:nowrap}
.nav-channel{
  font-size:15px;color:var(--text-mid);
  font-weight:500;letter-spacing:.01em;
  position:relative;padding:8px 2px;transition:color .25s ease;
}
.nav-channel:hover{color:var(--text-hi)}
.nav-channel.active{color:var(--text-hi);font-weight:600}
.nav-channel.active::after{
  content:"";position:absolute;left:0;right:0;bottom:0;height:2px;border-radius:2px;
  background:var(--cyan);
  box-shadow:0 0 12px rgba(56,232,255,.8);
}

.status-pill{
  display:inline-flex;align-items:center;gap:8px;
  font-size:12px;color:var(--text-mid);
  background:rgba(255,255,255,.06);
  border:1px solid rgba(255,255,255,.12);
  backdrop-filter:blur(10px);
  padding:4px 12px;border-radius:999px;
  line-height:1.4;
}
.status-pill .dot{width:6px;height:6px;border-radius:50%;background:var(--green);box-shadow:0 0 10px var(--green)}

.btn-nav-cta{
  background:linear-gradient(135deg,#2B7FFF,#38E8FF);
  color:#071226;font-weight:700;font-size:14px;
  padding:9px 20px;border-radius:12px;
  box-shadow:0 8px 24px rgba(43,127,255,.3),0 0 10px rgba(56,232,255,.18);
  transition:all .3s ease;white-space:nowrap;
}
.btn-nav-cta:hover{transform:translateY(-2px);box-shadow:0 12px 32px rgba(43,127,255,.44)}
.btn-nav-cta:active{transform:translateY(0)}
.btn-nav-cta:focus-visible,.menu-btn:focus-visible{outline:2px solid var(--cyan);outline-offset:3px;border-radius:12px}

.menu-btn{border:none;background:rgba(255,255,255,.06);width:42px;height:42px;border-radius:12px;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:5px;cursor:pointer}
.menu-btn span{display:block;width:18px;height:2px;background:var(--text-hi);border-radius:2px;transition:.3s}
.menu-btn.active span:nth-child(1){transform:translateY(7px) rotate(45deg)}
.menu-btn.active span:nth-child(2){opacity:0}
.menu-btn.active span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}

/* Mobile drawer */
.mobile-drawer{
  position:fixed;top:0;right:0;bottom:0;width:320px;max-width:86vw;
  background:rgba(10,15,27,.92);
  backdrop-filter:blur(22px);
  z-index:80;padding:24px;
  transform:translateX(105%);transition:transform .35s ease;
  border-left:1px solid rgba(255,255,255,.1);
  display:flex;flex-direction:column;
}
.mobile-drawer.open{transform:translateX(0)}
.drawer-top{display:flex;justify-content:space-between;align-items:center;margin-bottom:18px}
.drawer-close{
  width:42px;height:42px;border-radius:12px;border:none;color:#fff;
  background:rgba(255,255,255,.08);cursor:pointer;font-size:24px;
}
.drawer-nav{display:flex;flex-direction:column;gap:4px;flex:1}
.drawer-link{
  font-size:17px;color:var(--text-mid);padding:12px 10px;border-radius:12px;min-height:48px;
  display:flex;align-items:center;transition:.2s;
}
.drawer-link:hover{color:#fff;background:rgba(255,255,255,.06)}
.drawer-link.active{color:var(--cyan);background:rgba(56,232,255,.08);font-weight:600}
.drawer-tools{padding-top:20px;margin-top:auto;border-top:1px solid rgba(255,255,255,.08)}
.drawer-mask{position:fixed;inset:0;background:rgba(0,0,0,.6);backdrop-filter:blur(2px);z-index:70;opacity:0;pointer-events:none;transition:.3s}
.drawer-mask.show{opacity:1;pointer-events:auto}

/* Buttons */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;border-radius:14px;font-weight:600;font-size:16px;padding:15px 30px;transition:.28s ease;cursor:pointer;border:none;line-height:1;}
.btn-primary{
 background:linear-gradient(135deg,#2B7FFF,#38E8FF);color:#061026;
 box-shadow:0 10px 30px rgba(43,127,255,.35),0 0 16px rgba(56,232,255,.2);
}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 15px 40px rgba(43,127,255,.5)}
.btn-primary:active{transform:translateY(0);box-shadow:0 5px 18px rgba(43,127,255,.3)}
.btn-primary:focus-visible,.btn-glass:focus-visible,.btn-ghost:focus-visible{outline:2px solid var(--cyan);outline-offset:4px}
.btn-glass{
 background:linear-gradient(165deg,rgba(255,255,255,.1),rgba(255,255,255,.03));
 color:#fff;border:1px solid rgba(141,180,255,.32);backdrop-filter:blur(12px);
}
.btn-glass:hover{background:rgba(255,255,255,.15);border-color:rgba(56,232,255,.45);transform:translateY(-2px)}
.btn-ghost{color:var(--text-mid);background:transparent;border:1px solid rgba(255,255,255,.14)}
.btn-ghost:hover{color:#fff;border-color:rgba(56,232,255,.5);background:rgba(56,232,255,.06)}

/* Hero */
.page-hero{
  position:relative;
  padding:196px 0 96px;
  background-position:center;
  background-size:cover;
  border-bottom:1px solid rgba(141,180,255,.12);
}
.page-hero::before{
  content:"";position:absolute;inset:0;
  background-image:linear-gradient(rgba(56,232,255,.05) 1px,transparent 1px),linear-gradient(90deg,rgba(56,232,255,.05) 1px,transparent 1px);
  background-size:60px 60px;
  mask-image:radial-gradient(circle at 50% 45%,#000 30%,transparent 78%);
  pointer-events:none;
}
.hero-badge{
  display:inline-flex;align-items:center;gap:8px;background:rgba(255,255,255,.06);
  border:1px solid rgba(141,180,255,.35);color:var(--text-mid);
  backdrop-filter:blur(10px);font-size:13px;border-radius:999px;padding:6px 14px;
}
.hero-badge .success-color{color:var(--green)}
.hero-title{
  font-size:52px;line-height:1.15;font-weight:800;color:#fff;
  letter-spacing:-.03em;margin:26px 0 18px;position:relative;
}
.hero-title-glow{
  background:linear-gradient(100deg,#fff 12%,#38E8FF 60%,#2B7FFF);
  -webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent;
}
.hero-sub{max-width:780px;color:var(--text-mid);font-size:17px;line-height:1.9;margin:0}
.hero-actions{display:flex;gap:16px;align-items:center;flex-wrap:wrap;margin-top:30px}
.hero-meta{color:var(--text-low);font-size:13px;margin-top:20px;letter-spacing:.02em}
.hero-ring{position:absolute;inset:0;pointer-events:none;overflow:hidden}
.hero-ring::after{
  content:"";width:620px;height:620px;border-radius:50%;
  position:absolute;left:50%;top:115%;transform:translateX(-50%);
  background:radial-gradient(circle,rgba(43,127,255,.16),transparent 65%);
}



/* Number / step list */
.guide-card-step{
  background:linear-gradient(180deg,var(--glass-top),var(--glass-bottom));
  backdrop-filter:blur(14px);
  border:1px solid var(--line);
  border-radius:var(--radius-card);
  padding:32px 34px;
  transition:.28s;
  display:flex;gap:20px;
}
@media(max-width:640px){.guide-card-step{flex-direction:column;gap:8px;padding:26px 22px}}
.guide-card-step:hover{border-color:rgba(56,232,255,.36);transform:translateY(-4px)}
.step-num{
  font-size:44px;font-weight:800;line-height:1;color:transparent;flex:none;
  -webkit-text-stroke:1px rgba(56,232,255,.55);
  letter-spacing:-.02em;
  height:54px;
}
.guide-card-step:hover .step-num{-webkit-text-fill-color:rgba(56,232,255,.32)}
.step-title{font-size:20px;font-weight:700;color:#fff;margin-bottom:8px}
.step-text{color:var(--text-mid);font-size:15px;margin:0}
.step-time{
 display:inline-block;margin-top:10px;
 font-size:12px;color:var(--text-low);
 border:1px solid rgba(255,255,255,.1);border-radius:999px;padding:3px 10px;
}

/* Dual card */
.dual-card{
  background:linear-gradient(180deg,rgba(255,255,255,.08),rgba(255,255,255,.02));
  border:1px solid var(--line);border-radius:var(--radius-large);
  overflow:hidden;backdrop-filter:blur(14px);
  transition:transform .3s ease,border-color .3s ease,box-shadow .3s ease;
  display:flex;flex-direction:column;height:100%;
}
.dual-card:hover{transform:translateY(-5px);border-color:rgba(56,232,255,.4);box-shadow:0 18px 50px rgba(5,10,30,.5)}
.dual-thumb{position:relative;aspect-ratio:16/8;overflow:hidden;background:#0a1220}
.dual-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .5s ease}
.dual-card:hover .dual-thumb img{transform:scale(1.05)}
.dual-body{padding:28px}
.dual-tag{color:var(--cyan);font-size:13px;font-weight:600;background:rgba(56,232,255,.08);border-radius:999px;padding:4px 12px;display:inline-block}
.dual-card h3{font-size:22px;font-weight:700;color:#fff;margin:14px 0 6px}
.dual-card p{color:var(--text-mid);font-size:15px;margin:0 0 18px}
.dual-list{list-style:none;padding:0;margin:0 0 16px;display:grid;gap:8px}
.dual-list li{color:var(--text-mid);font-size:14px;display:flex;gap:8px;align-items:baseline}
.dual-list li::before{content:"✓";color:var(--green);font-weight:700;font-size:15px;line-height:1.6}


/* Scene tags */
.scene-zone{
  background:radial-gradient(ellipse at 70% 40%,rgba(43,127,255,.12),transparent 55%),linear-gradient(180deg,#0B1322,#070B14);
  border-block:1px solid rgba(141,180,255,.1);
}
.scene-chip{
  display:inline-flex;align-items:center;gap:8px;
  border:1px solid rgba(141,180,255,.2);background:rgba(255,255,255,.04);
  color:#c9d6ec;border-radius:16px;padding:9px 16px;
  font-size:14px;transition:.2s;
}
.scene-chip:hover{border-color:rgba(56,232,255,.45);color:#fff;background:rgba(56,232,255,.07)}


/* FAQ */
.faq-card{
  border:1px solid var(--line);background:linear-gradient(180deg,rgba(255,255,255,.05),rgba(255,255,255,.02));
  border-radius:18px;backdrop-filter:blur(12px);
  overflow:hidden;transition:border-color .25s;
}
.faq-item + .faq-item{margin-top:0;border-top:0;border-radius:0}
.faq-card .faq-item:first-child{border-top-left-radius:18px;border-top-right-radius:18px}
.faq-card .faq-item:last-child{border-bottom-left-radius:18px;border-bottom-right-radius:18px}
.faq-q{
  width:100%;background:transparent;border:none;color:#fff;
  font-size:17px;font-weight:600;text-align:left;
  padding:24px 44px 22px 24px;cursor:pointer;line-height:1.5;
  position:relative;min-height:44px;display:block;
}
.faq-q:focus-visible{outline:2px solid var(--cyan);outline-offset:-2px;border-radius:14px}
.faq-q .ic{
  width:28px;height:28px;border-radius:10px;position:absolute;right:20px;top:50%;
  transform:translateY(-50%);transition:.3s;color:#fff;
  background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.14);
  display:flex;align-items:center;justify-content:center;
}
.faq-item.open .ic{transform:translateY(-50%) rotate(180deg);background:rgba(56,232,255,.15);border-color:var(--cyan)}
.faq-a{max-height:0;overflow:hidden;transition:max-height .35s ease;color:var(--text-mid);font-size:15px;line-height:1.8;padding-left:24px;padding-right:30px}
.faq-a p{padding:0 0 22px;margin:0;color:#9eb2d4;}

/* News preview area (short) */
.dynamic-temp{
 border:1px dashed rgba(141,180,255,.24);border-radius:20px;
 color:var(--text-mid);background:var(--bg-deck);padding:46px 28px;text-align:center;
}
.dynamic-temp strong{color:#fff;display:block;font-size:18px;margin-bottom:4px;font-weight:600}
.dynamic-temp span{font-size:14px;color:var(--text-low)}

/* Article cta card */
.article-cta-card{
  border:1px solid var(--line);border-radius:22px;padding:26px 28px;
  background:linear-gradient(150deg,rgba(255,255,255,.08),rgba(255,255,255,.02));
  backdrop-filter:blur(12px);transition:.3s;display:block;
}
.article-cta-card:hover{border-color:rgba(56,232,255,.5);transform:translateY(-4px);box-shadow:0 18px 40px rgba(5,10,30,.45)}
.article-cta-card .mini-tag{font-size:13px;color:var(--cyan);font-weight:600}
.article-cta-card h4{font-size:20px;color:#fff;font-weight:700;margin:12px 0 8px;line-height:1.5}
.article-cta-card p{color:var(--text-mid);font-size:14px;line-height:1.7;margin:0}

/* Footer */
.footer{
  background:#0A101D;border-top:1px solid rgba(255,255,255,.1);
  padding-top:84px;padding-bottom:34px;
}
.footer .logo-mark{width:32px;height:32px;border-radius:10px;font-size:14px}
.footer-brand{color:#fff;font-weight:700;font-size:19px;letter-spacing:-.02em}
.footer-col-title{color:#b7c7e2;font-weight:600;margin-bottom:12px;font-size:15px}
.footer-link{display:block;color:var(--text-low);font-size:14px;line-height:44px;transition:.2s;}
.footer-link:hover{color:#fff}

@media(max-width:768px){
  .section{padding-block:64px}
  .section-head{margin-bottom:34px}
  .section-title{font-size:28px}
  .page-hero{padding:168px 0 72px}
  .hero-title{font-size:38px}
  .hero-actions .btn{width:100%}
  .nav-center{display:none}
  .footer{padding-top:60px}
}
@media(max-width:520px){
  .page-hero{padding:150px 0 64px}
  .hero-title{font-size:32px;letter-spacing:-.02em}
  .hero-badge{font-size:12px;padding:5px 10px}
  .hero-actions{gap:12px}
  .dual-card h3{font-size:19px}
  .status-pill.display-sm-none{display:none}
  .btn-nav-cta{padding:9px 14px;font-size:13px;max-width:128px}
}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{transition:none!important;animation:none!important}
  .article-cta-card:hover,.dual-card:hover,.guide-card-step:hover{transform:none}
}