/* roulang page: index */
:root{
  --bg:#050a16;
  --bg-soft:#081226;
  --panel:rgba(15,28,52,.72);
  --glass:rgba(255,255,255,.045);
  --glass-strong:rgba(255,255,255,.075);
  --line:rgba(110,160,255,.16);
  --line-strong:rgba(110,170,255,.34);
  --text:#e9f0ff;
  --muted:#93a5c6;
  --primary:#2e8bff;
  --primary-2:#4cc4ff;
  --accent:#2ee6c5;
  --warm:#ffb64d;
  --radius:16px;
  --radius-lg:22px;
  --shadow:0 18px 48px rgba(0,0,0,.45);
  --glow:0 10px 32px rgba(46,139,255,.38);
  --maxw:1180px;
}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Source Han Sans SC",system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:16px;
  line-height:1.75;
  letter-spacing:.2px;
  background-image:
    radial-gradient(900px 520px at 82% -8%, rgba(46,139,255,.22), transparent 62%),
    radial-gradient(760px 460px at 6% 4%, rgba(46,230,197,.10), transparent 60%),
    linear-gradient(180deg,#050a16 0%,#050a16 40%,#060d1d 100%);
  background-attachment:fixed;
}
img{max-width:100%;height:auto;display:block}
a{color:var(--primary-2);text-decoration:none;transition:color .22s ease,opacity .22s ease}
a:hover{color:#8fd8ff}
h1,h2,h3,h4{margin:0 0 .6em;line-height:1.35;font-weight:700;letter-spacing:.3px}
p{margin:0 0 1em}
p:last-child{margin-bottom:0}
ul,ol{margin:0 0 1em;padding-left:1.2em}
body.no-scroll{overflow:hidden}

.site-container{width:100%;max-width:var(--maxw);margin:0 auto;padding:0 24px}
.section{padding:88px 0;position:relative}
.section--tight{padding:64px 0}
.section--band{background:linear-gradient(180deg,rgba(9,20,42,.86),rgba(5,10,22,.35));border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.section-head{max-width:780px;margin-bottom:44px}
.section-head.center{margin-left:auto;margin-right:auto;text-align:center}
.eyebrow{display:inline-flex;align-items:center;gap:8px;padding:6px 14px;border-radius:999px;border:1px solid var(--line-strong);background:rgba(46,139,255,.10);color:#a8d4ff;font-size:13px;letter-spacing:1px;margin-bottom:16px}
.eyebrow::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--accent);box-shadow:0 0 10px var(--accent)}
.section-head h2{font-size:clamp(23px,2.6vw,32px);margin-bottom:14px}
.section-head p{color:var(--muted);font-size:15.5px;margin:0}

/* header */
.site-header{position:fixed;top:0;left:0;right:0;z-index:120;height:70px;display:flex;align-items:center;background:rgba(5,10,22,.72);backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);border-bottom:1px solid rgba(110,160,255,.14)}
.header-inner{width:100%;max-width:var(--maxw);margin:0 auto;padding:0 24px;display:flex;align-items:center;justify-content:space-between;gap:16px}
.brand{display:flex;align-items:center;gap:12px;color:var(--text)}
.brand:hover{color:var(--text)}
.brand-mark{width:40px;height:40px;flex:0 0 40px;border-radius:12px;display:flex;align-items:center;justify-content:center;font-size:18px;font-weight:700;color:#04101f;background:linear-gradient(135deg,var(--primary-2),var(--accent));box-shadow:0 8px 20px rgba(46,139,255,.4)}
.brand-text{display:flex;flex-direction:column;line-height:1.2}
.brand-name{font-size:16.5px;font-weight:700;letter-spacing:.6px}
.brand-sub{font-size:11.5px;color:var(--muted);letter-spacing:2px}
.header-actions{display:flex;align-items:center;gap:12px}
.menu-btn{width:44px;height:44px;border-radius:12px;border:1px solid var(--line-strong);background:rgba(255,255,255,.05);display:inline-flex;flex-direction:column;align-items:center;justify-content:center;gap:4px;cursor:pointer;transition:background .22s ease,border-color .22s ease,transform .22s ease}
.menu-btn span{display:block;width:18px;height:2px;border-radius:2px;background:#cfe1ff;transition:background .22s ease}
.menu-btn:hover{background:rgba(46,139,255,.18);border-color:rgba(76,196,255,.55);transform:translateY(-1px)}
.menu-btn:focus-visible{outline:2px solid var(--primary-2);outline-offset:2px}
.header-cta{display:none}
@media(min-width:860px){.header-cta{display:inline-flex}}

/* buttons */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:13px 26px;border-radius:12px;font-size:15px;font-weight:600;border:1px solid transparent;cursor:pointer;transition:transform .22s ease,box-shadow .22s ease,background .22s ease,border-color .22s ease,color .22s ease;text-align:center}
.btn-primary{background:linear-gradient(135deg,#2e8bff,#4cc4ff);color:#03101f;box-shadow:var(--glow)}
.btn-primary:hover{color:#03101f;transform:translateY(-2px);box-shadow:0 14px 38px rgba(46,139,255,.55)}
.btn-ghost{background:rgba(255,255,255,.04);border-color:var(--line-strong);color:#d5e6ff}
.btn-ghost:hover{background:rgba(46,139,255,.16);border-color:rgba(76,196,255,.6);color:#eaf5ff;transform:translateY(-2px)}
.btn:focus-visible{outline:2px solid var(--accent);outline-offset:3px}
.btn-sm{padding:10px 18px;font-size:14px;border-radius:10px}

/* drawer */
.drawer-overlay{position:fixed;inset:0;background:rgba(3,8,18,.72);backdrop-filter:blur(4px);opacity:0;visibility:hidden;transition:opacity .3s ease,visibility .3s ease;z-index:190}
.drawer-overlay.is-open{opacity:1;visibility:visible}
.site-drawer{position:fixed;top:0;right:0;bottom:0;width:400px;max-width:90vw;z-index:200;background:linear-gradient(180deg,rgba(10,20,40,.98),rgba(5,10,22,.99));border-left:1px solid var(--line-strong);box-shadow:-24px 0 60px rgba(0,0,0,.6);transform:translateX(102%);transition:transform .34s cubic-bezier(.4,.0,.2,1);display:flex;flex-direction:column;overflow-y:auto}
.site-drawer.is-open{transform:translateX(0)}
.drawer-top{display:flex;align-items:center;justify-content:space-between;padding:20px 24px;border-bottom:1px solid var(--line)}
.drawer-brand{font-size:15px;font-weight:700;letter-spacing:.5px}
.drawer-close{width:38px;height:38px;border-radius:10px;border:1px solid var(--line-strong);background:rgba(255,255,255,.04);color:#cfe1ff;font-size:18px;line-height:1;cursor:pointer;transition:background .2s ease,color .2s ease}
.drawer-close:hover{background:rgba(46,139,255,.2);color:#fff}
.drawer-nav{padding:14px 12px;display:flex;flex-direction:column;gap:4px}
.drawer-nav a{display:flex;align-items:center;justify-content:space-between;gap:12px;padding:14px 14px;border-radius:12px;color:#dbe8ff;font-size:15.5px;font-weight:600;transition:background .2s ease,color .2s ease,padding-left .2s ease}
.drawer-nav a:hover,.drawer-nav a:focus-visible{background:rgba(46,139,255,.16);color:#fff;padding-left:20px}
.drawer-nav a.is-active{background:rgba(46,230,197,.12);color:#b6ffef;box-shadow:inset 0 0 0 1px rgba(46,230,197,.32)}
.drawer-nav .nav-note{font-size:12px;color:var(--muted);font-weight:400}
.drawer-foot{padding:20px 24px 30px;border-top:1px solid var(--line);margin-top:auto}
.drawer-foot p{font-size:12.5px;color:var(--muted);line-height:1.7;margin:0 0 14px}
.drawer-dl{display:flex;flex-direction:column;gap:10px}
.drawer-dl a{display:flex;align-items:center;justify-content:space-between;padding:12px 16px;border-radius:12px;border:1px solid var(--line-strong);background:rgba(255,255,255,.04);color:#dcebff;font-size:14px;font-weight:600;transition:background .2s ease,border-color .2s ease,transform .2s ease}
.drawer-dl a:hover{background:rgba(46,139,255,.18);border-color:rgba(76,196,255,.6);transform:translateY(-1px)}
.drawer-dl a span{color:var(--muted);font-size:12px;font-weight:400}

/* hero */
.hero{padding:132px 0 72px;position:relative;overflow:hidden}
.hero::after{content:"";position:absolute;left:50%;top:-120px;width:900px;height:520px;transform:translateX(-50%);background:radial-gradient(closest-side,rgba(46,139,255,.20),transparent);pointer-events:none}
.hero-grid{position:relative;display:grid;grid-template-columns:minmax(0,1.05fr) minmax(0,.95fr);gap:44px;align-items:start}
.hero-main h1{font-size:clamp(28px,3.4vw,42px);line-height:1.28;margin-bottom:20px;letter-spacing:.5px}
.hero-main h1 em{font-style:normal;color:var(--primary-2)}
.hero-lead{color:var(--muted);font-size:16px;line-height:1.9;margin-bottom:26px;max-width:620px}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:34px}
.hero-kpi{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:14px}
.kpi-cell{padding:16px 14px;border-radius:14px;border:1px solid var(--line);background:var(--glass);min-width:0;transition:border-color .22s ease,transform .22s ease}
.kpi-cell:hover{border-color:var(--line-strong);transform:translateY(-2px)}
.kpi-cell strong{display:block;font-size:17px;color:#cfe6ff;letter-spacing:.5px;margin-bottom:4px}
.kpi-cell span{display:block;font-size:12.5px;color:var(--muted);line-height:1.55}

.hero-panel{position:relative;border-radius:var(--radius-lg);border:1px solid var(--line-strong);background:linear-gradient(165deg,rgba(17,32,60,.92),rgba(8,17,34,.94));box-shadow:var(--shadow);padding:22px;backdrop-filter:blur(12px);min-width:0}
.hero-panel-top{display:flex;align-items:center;justify-content:space-between;gap:12px;padding-bottom:16px;border-bottom:1px solid var(--line);margin-bottom:16px}
.hero-panel-top h2{font-size:15px;margin:0;color:#dbe9ff;letter-spacing:.6px}
.panel-tag{font-size:11.5px;color:#9dd2ff;border:1px solid rgba(76,196,255,.4);background:rgba(46,139,255,.14);border-radius:999px;padding:3px 10px;white-space:nowrap}
.board-row{display:grid;grid-template-columns:minmax(0,1fr) 96px;align-items:center;gap:12px;padding:11px 0;border-bottom:1px dashed rgba(110,160,255,.12)}
.board-row:last-of-type{border-bottom:0}
.board-name{font-size:14px;color:#dceaff;min-width:0;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.board-bar{height:8px;border-radius:6px;background:rgba(255,255,255,.07);overflow:hidden}
.board-bar i{display:block;height:100%;border-radius:6px;background:linear-gradient(90deg,#2e8bff,#2ee6c5)}
.board-bar.warm i{background:linear-gradient(90deg,#ffb64d,#ff7d5c)}
.board-bar.cool i{background:linear-gradient(90deg,#6f8dff,#9d6bff)}
.hero-panel-note{margin-top:16px;font-size:12px;color:var(--muted);line-height:1.7;padding-top:14px;border-top:1px solid var(--line)}

/* generic cards */
.card-grid{display:grid;gap:20px}
.grid-2{grid-template-columns:repeat(2,minmax(0,1fr))}
.grid-3{grid-template-columns:repeat(3,minmax(0,1fr))}
.grid-4{grid-template-columns:repeat(4,minmax(0,1fr))}
.site-card{position:relative;padding:26px 24px;border-radius:var(--radius);border:1px solid var(--line);background:linear-gradient(165deg,rgba(16,30,56,.72),rgba(8,16,32,.72));min-width:0;transition:transform .24s ease,border-color .24s ease,box-shadow .24s ease}
.site-card:hover{transform:translateY(-4px);border-color:var(--line-strong);box-shadow:0 18px 40px rgba(0,0,0,.42)}
.site-card h3{font-size:17px;margin-bottom:10px;color:#e4efff}
.site-card p{font-size:14.5px;color:var(--muted);line-height:1.8;margin:0}
.card-icon{width:42px;height:42px;border-radius:12px;display:flex;align-items:center;justify-content:center;font-size:17px;font-weight:700;color:#03101f;background:linear-gradient(135deg,var(--primary-2),var(--accent));margin-bottom:16px;box-shadow:0 8px 20px rgba(46,139,255,.32)}
.card-num{font-size:12px;letter-spacing:2px;color:#87c4ff;font-weight:700;margin-bottom:10px;display:block}

/* pain */
.pain-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:18px}
.pain-card{padding:24px 20px;border-radius:var(--radius);border:1px solid rgba(255,182,77,.24);background:linear-gradient(165deg,rgba(52,34,12,.55),rgba(12,17,30,.72));min-width:0}
.pain-card h3{font-size:15.5px;color:#ffd9a1;margin-bottom:8px}
.pain-card p{font-size:14px;color:#c3b298;line-height:1.78;margin:0}

/* solution */
.solution-grid{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:40px;align-items:center}
.solution-text h2{font-size:clamp(23px,2.6vw,31px)}
.solution-text p{color:var(--muted);font-size:15.5px;line-height:1.85}
.solution-list{display:flex;flex-direction:column;gap:14px}
.solution-item{display:flex;gap:14px;padding:18px 20px;border-radius:14px;border:1px solid var(--line);background:var(--glass);min-width:0;transition:border-color .22s ease,background .22s ease}
.solution-item:hover{border-color:var(--line-strong);background:rgba(46,139,255,.10)}
.solution-item .dot{flex:0 0 8px;width:8px;height:8px;border-radius:50%;margin-top:9px;background:var(--accent);box-shadow:0 0 10px rgba(46,230,197,.8)}
.solution-item h3{font-size:15.5px;margin:0 0 4px;color:#dfeeff}
.solution-item p{font-size:14px;color:var(--muted);margin:0;line-height:1.75}

/* demo */
.demo-grid{display:grid;grid-template-columns:minmax(0,.9fr) minmax(0,1.1fr);gap:40px;align-items:center}
.demo-copy h2{font-size:clamp(23px,2.6vw,31px)}
.demo-copy p{color:var(--muted);font-size:15.5px;line-height:1.85}
.demo-window{border-radius:18px;border:1px solid var(--line-strong);background:linear-gradient(170deg,rgba(14,27,50,.96),rgba(6,13,28,.98));box-shadow:var(--shadow);overflow:hidden;min-width:0}
.demo-bar{display:flex;align-items:center;gap:8px;padding:12px 16px;border-bottom:1px solid var(--line);background:rgba(255,255,255,.03)}
.demo-bar i{width:9px;height:9px;border-radius:50%;background:rgba(255,255,255,.18);display:block}
.demo-bar i:first-child{background:#ff6b6b}
.demo-bar i:nth-child(2){background:#ffc46b}
.demo-bar i:nth-child(3){background:#4ad8a6}
.demo-bar span{margin-left:10px;font-size:12.5px;color:#9fb4d6;letter-spacing:.5px}
.demo-body{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:18px;padding:18px}
.demo-block{min-width:0}
.demo-block h4{font-size:13px;color:#8fb0d8;letter-spacing:1px;margin-bottom:12px;font-weight:600}
.watch-item{display:flex;align-items:center;justify-content:space-between;gap:10px;padding:9px 12px;border-radius:10px;background:rgba(255,255,255,.04);border:1px solid rgba(110,160,255,.10);margin-bottom:8px}
.watch-item span{font-size:13.5px;color:#d3e4ff;min-width:0;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.watch-item b{font-size:12px;font-weight:600;color:#7ee0c4;white-space:nowrap}
.watch-item b.down{color:#ff9a8a}
.demo-chart{display:flex;align-items:flex-end;gap:6px;height:152px;padding:14px 12px;border-radius:12px;background:linear-gradient(180deg,rgba(46,139,255,.10),rgba(255,255,255,.02));border:1px solid rgba(110,160,255,.12)}
.demo-chart i{flex:1 1 0;min-width:0;border-radius:4px 4px 2px 2px;background:linear-gradient(180deg,#4cc4ff,#2e8bff);display:block}
.demo-chart i.up{background:linear-gradient(180deg,#4ae0b6,#1fae92)}
.demo-chart i.dim{background:linear-gradient(180deg,rgba(140,170,220,.6),rgba(90,120,180,.45))}
.demo-legend{display:flex;gap:14px;flex-wrap:wrap;margin-top:12px;font-size:12px;color:var(--muted)}
.demo-legend span{display:inline-flex;align-items:center;gap:6px}
.demo-legend em{width:10px;height:10px;border-radius:3px;display:inline-block;font-style:normal;background:#2e8bff}
.demo-legend em.up{background:#2ee6c5}
.demo-legend em.dim{background:rgba(150,175,220,.7)}

/* steps */
.step-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:18px}
.step-card{padding:24px 22px;border-radius:var(--radius);border:1px solid var(--line);background:var(--glass);min-width:0;position:relative;transition:transform .22s ease,border-color .22s ease}
.step-card:hover{transform:translateY(-3px);border-color:var(--line-strong)}
.step-index{font-size:26px;font-weight:800;color:rgba(76,196,255,.35);line-height:1;margin-bottom:12px}
.step-card h3{font-size:16px;margin-bottom:8px;color:#e2efff}
.step-card p{font-size:14px;color:var(--muted);margin:0;line-height:1.78}

/* download */
.download-wrap{border-radius:var(--radius-lg);border:1px solid var(--line-strong);background:linear-gradient(150deg,rgba(20,40,74,.9),rgba(8,17,34,.96));box-shadow:var(--shadow);padding:44px 36px;position:relative;overflow:hidden}
.download-wrap::after{content:"";position:absolute;right:-80px;top:-90px;width:320px;height:320px;border-radius:50%;background:radial-gradient(closest-side,rgba(46,139,255,.32),transparent);pointer-events:none}
.download-head{position:relative;max-width:680px;margin-bottom:30px}
.download-head h2{font-size:clamp(22px,2.5vw,30px);margin-bottom:12px}
.download-head p{color:var(--muted);font-size:15px;margin:0}
.dl-grid{position:relative;display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:18px}
.dl-card{border-radius:16px;border:1px solid var(--line);background:rgba(255,255,255,.045);padding:24px 22px;min-width:0;display:flex;flex-direction:column;gap:14px;transition:border-color .22s ease,transform .22s ease,background .22s ease}
.dl-card:hover{border-color:rgba(76,196,255,.55);background:rgba(46,139,255,.12);transform:translateY(-3px)}
.dl-card h3{font-size:16.5px;margin:0;color:#e6f1ff}
.dl-card p{font-size:13.5px;color:var(--muted);margin:0;line-height:1.7;flex:1 1 auto}
.dl-btn{display:inline-flex;align-items:center;justify-content:center;padding:12px 18px;border-radius:11px;background:linear-gradient(135deg,#2e8bff,#4cc4ff);color:#03101f;font-weight:700;font-size:14.5px;box-shadow:0 10px 26px rgba(46,139,255,.35);transition:transform .2s ease,box-shadow .2s ease,color .2s ease}
.dl-btn:hover{color:#03101f;transform:translateY(-2px);box-shadow:0 14px 34px rgba(46,139,255,.5)}
.dl-btn:focus-visible{outline:2px solid var(--accent);outline-offset:3px}
.download-note{position:relative;margin-top:22px;font-size:13px;color:var(--muted);line-height:1.75}

/* spec table */
.spec-table{width:100%;border-collapse:collapse;border-radius:14px;overflow:hidden;border:1px solid var(--line)}
.spec-table th,.spec-table td{padding:16px 20px;text-align:left;font-size:14.5px;border-bottom:1px solid rgba(110,160,255,.12);vertical-align:top}
.spec-table th{width:26%;color:#a9c6ec;font-weight:600;background:rgba(255,255,255,.035)}
.spec-table td{color:var(--muted)}
.spec-table tr:last-child th,.spec-table tr:last-child td{border-bottom:0}
.spec-table tr:hover td{color:#d6e6ff}

/* scenes */
.scene-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:20px}
.scene-card{padding:26px 24px;border-radius:var(--radius);border:1px solid var(--line);background:linear-gradient(160deg,rgba(18,34,62,.78),rgba(8,16,32,.78));min-width:0;transition:transform .22s ease,border-color .22s ease}
.scene-card:hover{transform:translateY(-3px);border-color:var(--line-strong)}
.scene-card h3{font-size:17px;color:#e4efff;margin-bottom:10px}
.scene-card p{font-size:14.5px;color:var(--muted);margin:0;line-height:1.82}
.scene-tag{display:inline-block;font-size:12px;padding:3px 10px;border-radius:999px;border:1px solid rgba(46,230,197,.35);color:#9df0dc;background:rgba(46,230,197,.10);margin-bottom:12px}

/* news */
.news-layout{display:grid;grid-template-columns:minmax(0,1.65fr) minmax(0,1fr);gap:28px;align-items:start}
.news-list{display:flex;flex-direction:column;gap:14px}
.news-item{display:block;padding:20px 22px;border-radius:14px;border:1px solid var(--line);background:rgba(255,255,255,.035);min-width:0;transition:border-color .22s ease,background .22s ease,transform .22s ease}
.news-item:hover{border-color:rgba(76,196,255,.5);background:rgba(46,139,255,.10);transform:translateX(3px)}
.news-item h3{font-size:16px;color:#e6f1ff;margin:8px 0 8px;line-height:1.55}
.news-item p{font-size:13.5px;color:var(--muted);margin:0 0 10px;line-height:1.75}
.news-meta{display:flex;flex-wrap:wrap;align-items:center;gap:12px;font-size:12.5px;color:#7f93b6}
.news-cat{display:inline-block;font-size:12px;padding:2px 10px;border-radius:999px;background:rgba(46,139,255,.16);border:1px solid rgba(76,196,255,.3);color:#a9d8ff}
.news-side{border-radius:16px;border:1px solid var(--line);background:rgba(255,255,255,.035);padding:22px;min-width:0}
.news-side h3{font-size:15px;color:#cfe1ff;margin-bottom:16px;letter-spacing:.5px}
.side-item{display:block;padding:12px 0;border-bottom:1px dashed rgba(110,160,255,.16);min-width:0}
.side-item:last-child{border-bottom:0}
.side-item strong{display:block;font-size:14px;color:#dbe9ff;font-weight:600;line-height:1.6;margin-bottom:4px}
.side-item:hover strong{color:#9fd6ff}
.side-item span{font-size:12px;color:#7f93b6}
.more-link{display:inline-flex;align-items:center;gap:6px;margin-top:18px;font-size:14px;font-weight:600;color:var(--primary-2)}
.more-link:hover{color:#9fe0ff}
.empty-tip{padding:26px;border:1px dashed var(--line-strong);border-radius:14px;color:var(--muted);font-size:14.5px;text-align:center}

/* plans */
.plan-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:20px}
.plan-card{padding:28px 24px;border-radius:var(--radius-lg);border:1px solid var(--line);background:linear-gradient(170deg,rgba(16,30,56,.8),rgba(8,16,32,.82));min-width:0;display:flex;flex-direction:column;transition:transform .24s ease,border-color .24s ease,box-shadow .24s ease}
.plan-card:hover{transform:translateY(-4px);border-color:var(--line-strong);box-shadow:0 18px 40px rgba(0,0,0,.4)}
.plan-card.highlight{border-color:rgba(46,230,197,.45);box-shadow:0 0 0 1px rgba(46,230,197,.18),0 18px 44px rgba(0,0,0,.44)}
.plan-head{display:flex;align-items:center;justify-content:space-between;gap:10px;margin-bottom:14px}
.plan-head h3{font-size:17px;margin:0;color:#e6f1ff}
.plan-badge{font-size:11.5px;padding:3px 10px;border-radius:999px;background:rgba(46,230,197,.14);border:1px solid rgba(46,230,197,.4);color:#9df0dc;white-space:nowrap}
.plan-card > p{font-size:14px;color:var(--muted);line-height:1.8;margin-bottom:18px}
.plan-list{list-style:none;padding:0;margin:0 0 22px;display:flex;flex-direction:column;gap:10px}
.plan-list li{position:relative;padding-left:20px;font-size:14px;color:#c6d8f2;line-height:1.7}
.plan-list li::before{content:"";position:absolute;left:0;top:9px;width:6px;height:6px;border-radius:50%;background:var(--primary-2)}
.plan-card .btn{margin-top:auto}

/* trust */
.trust-strip{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:16px;padding:28px;border-radius:var(--radius-lg);border:1px solid var(--line);background:linear-gradient(160deg,rgba(14,28,52,.85),rgba(7,14,28,.9))}
.trust-item{min-width:0;padding-left:16px;border-left:1px solid rgba(110,160,255,.18)}
.trust-item:first-child{border-left:0;padding-left:0}
.trust-item h3{font-size:15px;color:#dbeaff;margin-bottom:6px}
.trust-item p{font-size:13.5px;color:var(--muted);margin:0;line-height:1.72}

/* faq */
.faq-list{display:flex;flex-direction:column;gap:12px;max-width:880px;margin:0 auto}
.faq-item{border-radius:14px;border:1px solid var(--line);background:rgba(255,255,255,.035);overflow:hidden;transition:border-color .22s ease,background .22s ease}
.faq-item[open]{border-color:rgba(76,196,255,.45);background:rgba(46,139,255,.08)}
.faq-item summary{cursor:pointer;list-style:none;padding:18px 22px;font-size:15.5px;font-weight:600;color:#e2efff;display:flex;align-items:center;justify-content:space-between;gap:14px}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::after{content:"+";font-size:20px;font-weight:400;color:var(--primary-2);line-height:1;transition:transform .22s ease}
.faq-item[open] summary::after{transform:rotate(45deg)}
.faq-item summary:focus-visible{outline:2px solid var(--accent);outline-offset:-2px}
.faq-item p{padding:0 22px 20px;margin:0;font-size:14.5px;color:var(--muted);line-height:1.85}

/* form */
.lead-wrap{border-radius:var(--radius-lg);border:1px solid var(--line-strong);background:linear-gradient(150deg,rgba(18,36,68,.92),rgba(7,14,28,.96));padding:40px 36px;box-shadow:var(--shadow)}
.lead-grid{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:40px;align-items:start}
.lead-copy h2{font-size:clamp(22px,2.5vw,30px);margin-bottom:14px}
.lead-copy p{color:var(--muted);font-size:15px;line-height:1.85}
.lead-form{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:16px}
.field{display:flex;flex-direction:column;gap:6px;min-width:0}
.field.full{grid-column:1 / -1}
.field label{font-size:13px;color:#a9c6ec}
.field input,.field select{width:100%;padding:12px 14px;border-radius:11px;border:1px solid var(--line-strong);background:rgba(255,255,255,.05);color:#e6f1ff;font-size:14.5px;font-family:inherit;transition:border-color .2s ease,background .2s ease,box-shadow .2s ease}
.field input::placeholder{color:#6d80a3}
.field input:focus,.field select:focus{outline:none;border-color:rgba(76,196,255,.75);background:rgba(46,139,255,.12);box-shadow:0 0 0 3px rgba(46,139,255,.18)}
.field select option{background:#0a1730;color:#e6f1ff}
.lead-form .btn{grid-column:1 / -1;width:100%}
.form-note{grid-column:1 / -1;font-size:12.5px;color:#7f93b6;line-height:1.7;margin:0}

/* footer */
.site-footer{border-top:1px solid var(--line);background:linear-gradient(180deg,rgba(6,13,28,.6),rgba(4,8,18,.95));padding:60px 0 32px;margin-top:0}
.footer-grid{display:grid;grid-template-columns:minmax(0,1.3fr) repeat(2,minmax(0,.85fr));gap:36px;margin-bottom:36px}
.footer-brand .brand{margin-bottom:16px}
.footer-brand p{font-size:14px;color:var(--muted);line-height:1.85;max-width:420px}
.footer-col h3{font-size:14px;color:#c8dcf7;letter-spacing:1px;margin-bottom:16px}
.footer-col ul{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:10px}
.footer-col a{font-size:14px;color:var(--muted)}
.footer-col a:hover{color:#a9d8ff}
.friend-links{border-top:1px solid var(--line);padding-top:26px;margin-bottom:26px}
.friend-links h3{font-size:13.5px;color:#c8dcf7;letter-spacing:1px;margin-bottom:14px}
.friend-links .link-cloud{display:flex;flex-wrap:wrap;gap:10px 18px;font-size:13.5px;color:var(--muted);line-height:1.8}
.friend-links .link-cloud a{color:#9fb4d6;font-size:13.5px}
.friend-links .link-cloud a:hover{color:#9fe0ff}
.footer-bottom{border-top:1px solid var(--line);padding-top:22px;display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;align-items:center;font-size:12.5px;color:#6f82a4}
.footer-bottom p{margin:0}
.risk-note{font-size:12.5px;color:#6f82a4;line-height:1.8;margin-bottom:20px}

/* responsive */
@media(max-width:1024px){
  .hero-grid{grid-template-columns:minmax(0,1fr);gap:34px}
  .hero{padding-top:112px}
  .pain-grid,.grid-4,.step-grid,.trust-strip{grid-template-columns:repeat(2,minmax(0,1fr))}
  .grid-3,.plan-grid,.dl-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .solution-grid,.demo-grid,.lead-grid{grid-template-columns:minmax(0,1fr);gap:28px}
  .news-layout{grid-template-columns:minmax(0,1fr)}
  .footer-grid{grid-template-columns:minmax(0,1fr) minmax(0,1fr)}
  .trust-item{border-left:0;padding-left:0}
}
@media(max-width:768px){
  .section{padding:60px 0}
  .site-container{padding:0 18px}
  .header-inner{padding:0 18px}
  .hero-kpi{grid-template-columns:repeat(2,minmax(0,1fr))}
  .grid-2,.grid-3,.grid-4,.pain-grid,.step-grid,.scene-grid,.plan-grid,.dl-grid,.trust-strip{grid-template-columns:minmax(0,1fr)}
  .demo-body{grid-template-columns:minmax(0,1fr)}
  .lead-form{grid-template-columns:minmax(0,1fr)}
  .download-wrap,.lead-wrap{padding:30px 22px}
  .spec-table th{width:34%}
  .footer-grid{grid-template-columns:minmax(0,1fr);gap:26px}
  .brand-sub{display:none}
}
@media(max-width:520px){
  .hero{padding:98px 0 52px}
  .hero-main h1{font-size:26px}
  .hero-lead{font-size:15px}
  .btn{width:100%}
  .hero-actions{gap:12px}
  .spec-table th,.spec-table td{padding:13px 14px;font-size:13.5px;display:block;width:100%}
  .spec-table th{border-bottom:0;padding-bottom:4px;background:transparent;color:#a9c6ec}
  .spec-table tr{display:block;border-bottom:1px solid rgba(110,160,255,.12)}
  .spec-table tr:last-child{border-bottom:0}
  .site-drawer{width:100%;max-width:100%}
}

/* roulang page: article */
:root{
  --bg:#050a16;
  --bg-soft:#081226;
  --panel:rgba(15,28,52,.72);
  --glass:rgba(255,255,255,.045);
  --glass-strong:rgba(255,255,255,.075);
  --line:rgba(110,160,255,.16);
  --line-strong:rgba(110,170,255,.34);
  --text:#e9f0ff;
  --muted:#93a5c6;
  --primary:#2e8bff;
  --primary-2:#4cc4ff;
  --accent:#2ee6c5;
  --warm:#ffb64d;
  --radius:16px;
  --radius-lg:22px;
  --shadow:0 18px 48px rgba(0,0,0,.45);
  --glow:0 10px 32px rgba(46,139,255,.38);
  --maxw:1180px;
}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  padding-top:70px;
  background:var(--bg);
  color:var(--text);
  font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Source Han Sans SC",system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:16px;
  line-height:1.75;
  letter-spacing:.2px;
  background-image:
    radial-gradient(900px 520px at 82% -8%, rgba(46,139,255,.22), transparent 62%),
    radial-gradient(760px 460px at 6% 4%, rgba(46,230,197,.10), transparent 60%),
    linear-gradient(180deg,#050a16 0%,#050a16 40%,#060d1d 100%);
  background-attachment:fixed;
}
h1,h2,h3,h4,h5,h6{margin:0;font-weight:700;line-height:1.35;color:var(--text)}
p{margin:0}
ul,ol{margin:0;padding:0;list-style:none}
img{max-width:100%;height:auto;display:block}
a{color:var(--primary-2);text-decoration:none;transition:color .22s ease,opacity .22s ease}
a:hover{color:#8fd8ff}
body.no-scroll{overflow:hidden}
.site-container{width:100%;max-width:var(--maxw);margin:0 auto;padding:0 24px}
.section{padding:88px 0;position:relative}
.section--tight{padding:64px 0}
.section--band{background:linear-gradient(180deg,rgba(9,20,42,.86),rgba(5,10,22,.35));border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.section-head{max-width:780px;margin-bottom:44px}
.section-head h2{font-size:clamp(23px,2.6vw,32px);margin-bottom:14px}
.section-head p{color:var(--muted);font-size:15.5px;margin:0}
.eyebrow{display:inline-flex;align-items:center;gap:8px;padding:6px 14px;border-radius:999px;border:1px solid var(--line-strong);background:rgba(46,139,255,.10);color:#a8d4ff;font-size:13px;letter-spacing:1px;margin-bottom:16px}
.eyebrow::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--accent);box-shadow:0 0 10px var(--accent)}

/* header */
.site-header{position:fixed;top:0;left:0;right:0;z-index:120;height:70px;display:flex;align-items:center;background:rgba(5,10,22,.72);backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);border-bottom:1px solid rgba(110,160,255,.14)}
.header-inner{width:100%;max-width:var(--maxw);margin:0 auto;padding:0 24px;display:flex;align-items:center;justify-content:space-between;gap:16px}
.brand{display:flex;align-items:center;gap:12px;color:var(--text)}
.brand:hover{color:var(--text)}
.brand-mark{width:40px;height:40px;flex:0 0 40px;border-radius:12px;display:flex;align-items:center;justify-content:center;font-size:18px;font-weight:700;color:#04101f;background:linear-gradient(135deg,var(--primary-2),var(--accent));box-shadow:0 8px 20px rgba(46,139,255,.4)}
.brand-text{display:flex;flex-direction:column;line-height:1.2}
.brand-name{font-size:16.5px;font-weight:700;letter-spacing:.6px}
.brand-sub{font-size:11.5px;color:var(--muted);letter-spacing:2px}
.header-actions{display:flex;align-items:center;gap:12px}
.menu-btn{width:44px;height:44px;border-radius:12px;border:1px solid var(--line-strong);background:rgba(255,255,255,.05);display:inline-flex;flex-direction:column;align-items:center;justify-content:center;gap:4px;cursor:pointer;transition:background .22s ease,border-color .22s ease,transform .22s ease}
.menu-btn span{display:block;width:18px;height:2px;border-radius:2px;background:#cfe1ff;transition:background .22s ease}
.menu-btn:hover{background:rgba(46,139,255,.18);border-color:rgba(76,196,255,.55);transform:translateY(-1px)}
.menu-btn:focus-visible{outline:2px solid var(--primary-2);outline-offset:2px}
.header-cta{display:inline-flex}

/* buttons */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:13px 26px;border-radius:12px;font-size:15px;font-weight:600;border:1px solid transparent;cursor:pointer;transition:transform .22s ease,box-shadow .22s ease,background .22s ease,border-color .22s ease,color .22s ease;text-align:center}
.btn-primary{background:linear-gradient(135deg,#2e8bff,#4cc4ff);color:#03101f;box-shadow:var(--glow)}
.btn-primary:hover{color:#03101f;transform:translateY(-2px);box-shadow:0 14px 38px rgba(46,139,255,.55)}
.btn-ghost{background:rgba(255,255,255,.04);border-color:var(--line-strong);color:#d5e6ff}
.btn-ghost:hover{background:rgba(46,139,255,.16);border-color:rgba(76,196,255,.6);color:#eaf5ff;transform:translateY(-2px)}
.btn:focus-visible{outline:2px solid var(--accent);outline-offset:3px}
.btn-sm{padding:10px 18px;font-size:14px;border-radius:10px}
.btn-block{width:100%}

/* drawer */
.drawer-overlay{position:fixed;inset:0;background:rgba(3,8,18,.72);backdrop-filter:blur(4px);-webkit-backdrop-filter:blur(4px);opacity:0;visibility:hidden;transition:opacity .3s ease,visibility .3s ease;z-index:190}
.drawer-overlay.is-open{opacity:1;visibility:visible}
.site-drawer{position:fixed;top:0;right:0;bottom:0;width:400px;max-width:90vw;z-index:200;background:linear-gradient(180deg,rgba(10,20,40,.98),rgba(5,10,22,.99));border-left:1px solid var(--line-strong);box-shadow:-24px 0 60px rgba(0,0,0,.6);transform:translateX(102%);transition:transform .34s cubic-bezier(.4,0,.2,1);display:flex;flex-direction:column;overflow-y:auto}
.site-drawer.is-open{transform:translateX(0)}
.drawer-top{display:flex;align-items:center;justify-content:space-between;padding:20px 24px;border-bottom:1px solid var(--line)}
.drawer-brand{font-size:15px;font-weight:700;letter-spacing:.5px}
.drawer-close{width:38px;height:38px;border-radius:10px;border:1px solid var(--line-strong);background:rgba(255,255,255,.04);color:#cfe1ff;font-size:18px;line-height:1;cursor:pointer;transition:background .2s ease,color .2s ease}
.drawer-close:hover{background:rgba(46,139,255,.2);color:#fff}
.drawer-nav{padding:14px 12px;display:flex;flex-direction:column;gap:4px}
.drawer-nav a{display:flex;align-items:center;justify-content:space-between;gap:12px;padding:14px 14px;border-radius:12px;color:#dbe8ff;font-size:15.5px;font-weight:600;transition:background .2s ease,color .2s ease,padding-left .2s ease}
.drawer-nav a:hover,.drawer-nav a:focus-visible{background:rgba(46,139,255,.16);color:#fff;padding-left:20px}
.drawer-nav a.is-active{background:rgba(46,230,197,.12);color:#b6ffef;box-shadow:inset 0 0 0 1px rgba(46,230,197,.32)}
.drawer-nav .nav-note{font-size:12px;color:var(--muted);font-weight:400;letter-spacing:1px}
.drawer-foot{margin-top:auto;padding:20px 24px 28px;border-top:1px solid var(--line);display:flex;flex-direction:column;gap:12px}
.drawer-foot p{font-size:12.5px;color:var(--muted);line-height:1.7}

/* article hero */
.article-hero{padding:52px 0 38px;border-bottom:1px solid var(--line);background:linear-gradient(180deg,rgba(9,20,42,.72),rgba(5,10,22,0))}
.breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13.5px;color:var(--muted);margin-bottom:20px}
.breadcrumb a{color:#a8d4ff}
.breadcrumb a:hover{color:#d6ecff}
.crumb-sep{color:rgba(147,165,198,.6)}
.crumb-current{color:#cfe1ff;min-width:0;max-width:100%;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.article-tags{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:18px}
.tag{display:inline-flex;align-items:center;gap:6px;padding:5px 13px;border-radius:999px;font-size:12.5px;border:1px solid var(--line-strong);background:rgba(46,139,255,.12);color:#a8d4ff;letter-spacing:.5px}
.tag--accent{border-color:rgba(46,230,197,.4);background:rgba(46,230,197,.1);color:#8ff5e0}
.article-title{font-size:clamp(25px,3.3vw,38px);line-height:1.38;margin:0 0 16px;letter-spacing:.5px}
.article-lead{color:var(--muted);font-size:16px;max-width:820px;margin:0 0 22px;line-height:1.85}
.article-meta{display:flex;flex-wrap:wrap;gap:10px 22px;font-size:13.5px;color:var(--muted)}
.article-meta span{display:inline-flex;align-items:center;gap:6px}

/* article layout */
.article-section{padding:44px 0 80px}
.article-layout{display:grid;grid-template-columns:minmax(0,1fr) 316px;gap:32px;align-items:start}
.article-body-card{min-width:0;background:var(--panel);border:1px solid var(--line);border-radius:var(--radius-lg);padding:36px 38px 42px;box-shadow:var(--shadow);backdrop-filter:blur(10px);-webkit-backdrop-filter:blur(10px)}
.article-content{max-width:720px;color:#dbe6fb;font-size:16.5px;line-height:1.92}
.article-content>*:first-child{margin-top:0}
.article-content p{margin:0 0 1.15em}
.article-content h2{font-size:22px;margin:1.7em 0 .7em;padding-left:12px;border-left:3px solid var(--primary-2);line-height:1.5}
.article-content h3{font-size:18px;margin:1.5em 0 .6em;color:#eaf3ff}
.article-content h4{font-size:16.5px;margin:1.3em 0 .5em;color:#eaf3ff}
.article-content ul{list-style:disc;margin:0 0 1.15em;padding-left:1.35em}
.article-content ol{list-style:decimal;margin:0 0 1.15em;padding-left:1.35em}
.article-content li{margin-bottom:.55em}
.article-content li::marker{color:var(--primary-2)}
.article-content a{color:#7fd0ff;border-bottom:1px solid rgba(127,208,255,.35)}
.article-content a:hover{color:#b6e6ff;border-bottom-color:rgba(182,230,255,.7)}
.article-content strong{color:#ffffff}
.article-content img{border-radius:14px;margin:1.2em 0;box-shadow:0 12px 30px rgba(0,0,0,.4)}
.article-content blockquote{margin:1.4em 0;padding:16px 20px;border-left:3px solid var(--accent);background:rgba(46,230,197,.07);border-radius:0 12px 12px 0;color:#bfeee4}
.article-content blockquote p:last-child{margin-bottom:0}
.article-content table{width:100%;border-collapse:collapse;margin:1.3em 0;font-size:15px}
.article-content th,.article-content td{border:1px solid var(--line);padding:10px 13px;text-align:left;vertical-align:top}
.article-content th{background:rgba(46,139,255,.1);color:#eaf3ff;font-weight:600}
.article-content code{background:rgba(255,255,255,.07);padding:2px 6px;border-radius:6px;font-size:14px;color:#a8e6ff}
.article-content hr{border:0;border-top:1px solid var(--line);margin:2em 0}
.article-empty{padding:20px 0 8px}
.article-empty h2{font-size:22px;margin-bottom:12px;border:0;padding:0}
.article-empty p{color:var(--muted);margin-bottom:22px}

/* sidebar */
.article-side{display:flex;flex-direction:column;gap:18px;min-width:0;position:sticky;top:90px}
.side-card{background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);padding:22px 22px 24px;backdrop-filter:blur(10px);-webkit-backdrop-filter:blur(10px);box-shadow:0 12px 32px rgba(0,0,0,.28)}
.side-card h3{font-size:14.5px;letter-spacing:1px;margin:0 0 16px;color:#eaf3ff;display:flex;align-items:center;gap:8px}
.side-card h3::before{content:"";width:4px;height:14px;border-radius:2px;background:linear-gradient(180deg,var(--primary-2),var(--accent))}
.side-list li{display:flex;align-items:flex-start;justify-content:space-between;gap:14px;padding:9px 0;border-bottom:1px dashed rgba(110,160,255,.14);font-size:14px}
.side-list li:last-child{border-bottom:0;padding-bottom:0}
.side-list .k{color:var(--muted);flex:0 0 auto}
.side-list .v{color:#dbe8ff;text-align:right;min-width:0;word-break:break-word}
.side-dl{display:flex;flex-direction:column;gap:10px}
.side-note{font-size:13px;color:var(--muted);margin-top:14px;line-height:1.75}

/* feature cards */
.feature-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:20px}
.feature-card{min-width:0;background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);padding:26px 24px;transition:transform .24s ease,border-color .24s ease,box-shadow .24s ease}
.feature-card:hover{transform:translateY(-4px);border-color:var(--line-strong);box-shadow:0 18px 40px rgba(0,0,0,.4)}
.feature-icon{width:44px;height:44px;border-radius:12px;display:flex;align-items:center;justify-content:center;font-size:18px;font-weight:700;color:#04101f;background:linear-gradient(135deg,var(--primary-2),var(--accent));margin-bottom:16px}
.feature-card h3{font-size:17px;margin-bottom:10px}
.feature-card p{color:var(--muted);font-size:14.5px;line-height:1.8}

/* download */
.download-panel{position:relative;overflow:hidden;border-radius:var(--radius-lg);border:1px solid var(--line-strong);background:linear-gradient(135deg,rgba(46,139,255,.18),rgba(46,230,197,.08) 65%,rgba(5,10,22,.2));padding:40px 42px;box-shadow:var(--shadow)}
.download-panel::after{content:"";position:absolute;right:-90px;top:-90px;width:260px;height:260px;border-radius:50%;background:radial-gradient(circle,rgba(76,196,255,.28),transparent 70%);pointer-events:none}
.download-panel h2{font-size:clamp(22px,2.4vw,28px);margin-bottom:12px}
.download-panel p{color:#b9ccea;font-size:15px;max-width:720px}
.download-actions{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:14px;margin-top:26px}
.dl-btn{display:flex;align-items:center;gap:12px;padding:16px 18px;border-radius:14px;border:1px solid var(--line-strong);background:rgba(255,255,255,.05);color:#eaf3ff;transition:transform .22s ease,background .22s ease,border-color .22s ease,box-shadow .22s ease;min-width:0}
.dl-btn:hover{color:#fff;transform:translateY(-3px);background:rgba(46,139,255,.2);border-color:rgba(76,196,255,.6);box-shadow:0 14px 34px rgba(46,139,255,.28)}
.dl-btn:focus-visible{outline:2px solid var(--accent);outline-offset:3px}
.dl-btn .dl-ico{width:38px;height:38px;flex:0 0 38px;border-radius:10px;display:flex;align-items:center;justify-content:center;font-size:13px;font-weight:700;color:#04101f;background:linear-gradient(135deg,var(--primary-2),var(--accent))}
.dl-btn .dl-txt{display:flex;flex-direction:column;line-height:1.35;min-width:0}
.dl-btn .dl-txt strong{font-size:15px;font-weight:700}
.dl-btn .dl-txt small{font-size:12px;color:var(--muted);letter-spacing:.5px}

/* more panel */
.more-panel{display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:18px;padding:26px 30px;border-radius:var(--radius);border:1px solid var(--line);background:var(--glass)}
.more-panel h2{font-size:19px;margin-bottom:8px}
.more-panel p{color:var(--muted);font-size:14.5px;max-width:640px}

/* risk strip */
.risk-strip{padding:18px 22px;border-radius:var(--radius);border:1px dashed rgba(255,182,77,.4);background:rgba(255,182,77,.07);color:#ffd9a3;font-size:14px;line-height:1.85}

/* footer */
.site-footer{border-top:1px solid var(--line);background:linear-gradient(180deg,rgba(8,18,38,.9),rgba(4,8,18,.98));padding:64px 0 30px}
.footer-grid{display:grid;grid-template-columns:minmax(0,1.5fr) minmax(0,1fr) minmax(0,1fr);gap:36px}
.footer-brand p{color:var(--muted);font-size:14.5px;margin-top:16px;max-width:440px;line-height:1.85}
.footer-col h3{font-size:15px;margin:0 0 14px;color:#eaf3ff}
.footer-col ul li{margin-bottom:10px}
.footer-col ul li a{color:var(--muted);font-size:14.5px}
.footer-col ul li a:hover{color:#8fd8ff}
.friend-links{margin-top:40px;padding-top:26px;border-top:1px solid var(--line)}
.friend-links h3{font-size:15px;margin:0 0 14px;color:#eaf3ff}
.link-cloud{display:flex;flex-wrap:wrap;gap:10px 20px}
.link-cloud a{font-size:14px;color:var(--muted)}
.link-cloud a:hover{color:#8fd8ff}
.risk-note{margin-top:26px;font-size:13px;color:#7f90b0;line-height:1.85}
.footer-bottom{display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:10px;margin-top:24px;padding-top:20px;border-top:1px solid var(--line);font-size:13px;color:#7f90b0}

/* responsive */
@media (max-width:1024px){
  .article-layout{grid-template-columns:minmax(0,1fr);gap:26px}
  .article-side{position:static;flex-direction:row;flex-wrap:wrap}
  .article-side .side-card{flex:1 1 280px}
  .feature-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .footer-grid{grid-template-columns:minmax(0,1fr) minmax(0,1fr)}
}
@media (max-width:768px){
  .section{padding:64px 0}
  .article-hero{padding:40px 0 30px}
  .article-body-card{padding:26px 22px 32px}
  .article-content{font-size:16px}
  .download-panel{padding:30px 24px}
  .download-actions{grid-template-columns:minmax(0,1fr)}
  .feature-grid{grid-template-columns:minmax(0,1fr)}
  .footer-grid{grid-template-columns:minmax(0,1fr);gap:28px}
  .more-panel{padding:22px 20px}
}
@media (max-width:600px){
  .header-cta{display:none}
  .brand-sub{display:none}
  .brand-name{font-size:15px}
  .site-container{padding:0 18px}
  .header-inner{padding:0 18px}
}
@media (max-width:520px){
  .article-side{flex-direction:column}
  .article-title{font-size:23px}
  .article-body-card{padding:22px 18px 28px;border-radius:18px}
  .download-panel{border-radius:18px;padding:26px 18px}
  .btn{width:100%}
  .footer-bottom{flex-direction:column;align-items:flex-start}
}

/* roulang page: category1 */
:root{
  --bg:#050a16;
  --bg-soft:#081226;
  --panel:rgba(15,28,52,.72);
  --glass:rgba(255,255,255,.045);
  --glass-strong:rgba(255,255,255,.075);
  --line:rgba(110,160,255,.16);
  --line-strong:rgba(110,170,255,.34);
  --text:#e9f0ff;
  --muted:#93a5c6;
  --primary:#2e8bff;
  --primary-2:#4cc4ff;
  --accent:#2ee6c5;
  --warm:#ffb64d;
  --radius:16px;
  --radius-lg:22px;
  --shadow:0 18px 48px rgba(0,0,0,.45);
  --glow:0 10px 32px rgba(46,139,255,.38);
  --maxw:1180px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Source Han Sans SC",system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:16px;
  line-height:1.75;
  letter-spacing:.2px;
  background-image:
    radial-gradient(900px 520px at 82% -8%, rgba(46,139,255,.22), transparent 62%),
    radial-gradient(760px 460px at 6% 4%, rgba(46,230,197,.10), transparent 60%),
    linear-gradient(180deg,#050a16 0%,#050a16 40%,#060d1d 100%);
  background-attachment:fixed;
}
img{max-width:100%;height:auto;display:block}
a{color:var(--primary-2);text-decoration:none;transition:color .22s ease,opacity .22s ease}
a:hover{color:#8fd8ff}
h1,h2,h3,h4{margin:0;font-weight:700;line-height:1.32;letter-spacing:.5px;color:var(--text);font-family:inherit}
p{margin:0 0 14px}
ul,ol{margin:0;padding:0;list-style:none}
button{font-family:inherit}
strong{color:#cfe4ff}
body.no-scroll{overflow:hidden}
.site-container{width:100%;max-width:var(--maxw);margin:0 auto;padding:0 24px}
main{display:block}
.section{padding:88px 0;position:relative}
.section--tight{padding:64px 0}
.section--band{background:linear-gradient(180deg,rgba(9,20,42,.86),rgba(5,10,22,.35));border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.section-head{max-width:800px;margin-bottom:42px}
.section-head.center{margin-left:auto;margin-right:auto;text-align:center}
.section-head h2{font-size:clamp(23px,2.6vw,32px);margin-bottom:14px}
.section-head p{color:var(--muted);font-size:15.5px;margin:0}
.eyebrow{display:inline-flex;align-items:center;gap:8px;padding:6px 14px;border-radius:999px;border:1px solid var(--line-strong);background:rgba(46,139,255,.10);color:#a8d4ff;font-size:13px;letter-spacing:1px;margin-bottom:18px}
.eyebrow::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--accent);box-shadow:0 0 10px var(--accent)}

/* header */
.site-header{position:fixed;top:0;left:0;right:0;z-index:120;height:70px;display:flex;align-items:center;background:rgba(5,10,22,.72);backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);border-bottom:1px solid rgba(110,160,255,.14)}
.header-inner{width:100%;max-width:var(--maxw);margin:0 auto;padding:0 24px;display:flex;align-items:center;justify-content:space-between;gap:16px}
.brand{display:flex;align-items:center;gap:12px;color:var(--text);min-width:0}
.brand:hover{color:var(--text)}
.brand-mark{width:40px;height:40px;flex:0 0 40px;border-radius:12px;display:flex;align-items:center;justify-content:center;font-size:18px;font-weight:700;color:#04101f;background:linear-gradient(135deg,var(--primary-2),var(--accent));box-shadow:0 8px 20px rgba(46,139,255,.4)}
.brand-text{display:flex;flex-direction:column;line-height:1.2;min-width:0}
.brand-name{font-size:16.5px;font-weight:700;letter-spacing:.6px}
.brand-sub{font-size:11.5px;color:var(--muted);letter-spacing:2px}
.header-actions{display:flex;align-items:center;gap:12px}
.menu-btn{width:44px;height:44px;border-radius:12px;border:1px solid var(--line-strong);background:rgba(255,255,255,.05);display:inline-flex;flex-direction:column;align-items:center;justify-content:center;gap:4px;cursor:pointer;transition:background .22s ease,border-color .22s ease,transform .22s ease}
.menu-btn span{display:block;width:18px;height:2px;border-radius:2px;background:#cfe1ff;transition:background .22s ease}
.menu-btn:hover{background:rgba(46,139,255,.18);border-color:rgba(76,196,255,.55);transform:translateY(-1px)}
.menu-btn:focus-visible{outline:2px solid var(--primary-2);outline-offset:2px}
.header-cta{display:inline-flex}

/* buttons */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:13px 26px;border-radius:12px;font-size:15px;font-weight:600;border:1px solid transparent;cursor:pointer;transition:transform .22s ease,box-shadow .22s ease,background .22s ease,border-color .22s ease,color .22s ease;text-align:center}
.btn-primary{background:linear-gradient(135deg,#2e8bff,#4cc4ff);color:#03101f;box-shadow:var(--glow)}
.btn-primary:hover{color:#03101f;transform:translateY(-2px);box-shadow:0 14px 38px rgba(46,139,255,.55)}
.btn-ghost{background:rgba(255,255,255,.04);border-color:var(--line-strong);color:#d5e6ff}
.btn-ghost:hover{background:rgba(46,139,255,.16);border-color:rgba(76,196,255,.6);color:#eaf5ff;transform:translateY(-2px)}
.btn:focus-visible{outline:2px solid var(--accent);outline-offset:3px}
.btn-sm{padding:10px 18px;font-size:14px;border-radius:10px}

/* drawer */
.drawer-overlay{position:fixed;inset:0;background:rgba(3,8,18,.72);backdrop-filter:blur(4px);opacity:0;visibility:hidden;transition:opacity .3s ease,visibility .3s ease;z-index:190}
.drawer-overlay.is-open{opacity:1;visibility:visible}
.site-drawer{position:fixed;top:0;right:0;bottom:0;width:400px;max-width:90vw;z-index:200;background:linear-gradient(180deg,rgba(10,20,40,.98),rgba(5,10,22,.99));border-left:1px solid var(--line-strong);box-shadow:-24px 0 60px rgba(0,0,0,.6);transform:translateX(102%);transition:transform .34s cubic-bezier(.4,.0,.2,1);display:flex;flex-direction:column;overflow-y:auto}
.site-drawer.is-open{transform:translateX(0)}
.drawer-top{display:flex;align-items:center;justify-content:space-between;gap:12px;padding:20px 24px;border-bottom:1px solid var(--line)}
.drawer-brand{font-size:15px;font-weight:700;letter-spacing:.5px}
.drawer-close{width:38px;height:38px;border-radius:10px;border:1px solid var(--line-strong);background:rgba(255,255,255,.04);color:#cfe1ff;font-size:20px;line-height:1;cursor:pointer;transition:background .2s ease,color .2s ease}
.drawer-close:hover{background:rgba(46,139,255,.2);color:#fff}
.drawer-close:focus-visible{outline:2px solid var(--primary-2);outline-offset:2px}
.drawer-nav{padding:14px 12px;display:flex;flex-direction:column;gap:4px}
.drawer-nav a{display:flex;align-items:center;justify-content:space-between;gap:12px;padding:14px;border-radius:12px;color:#dbe8ff;font-size:15.5px;font-weight:600;transition:background .2s ease,color .2s ease,padding-left .2s ease}
.drawer-nav a:hover,.drawer-nav a:focus-visible{background:rgba(46,139,255,.16);color:#fff;padding-left:20px}
.drawer-nav a.is-active{background:rgba(46,230,197,.12);color:#b6ffef;box-shadow:inset 0 0 0 1px rgba(46,230,197,.32)}
.drawer-cta{margin-top:auto;padding:22px 24px 28px;border-top:1px solid var(--line)}
.drawer-cta .btn{width:100%}

/* hero */
.page-hero{padding:132px 0 78px;position:relative;overflow:hidden}
.page-hero::before{content:"";position:absolute;top:-160px;right:-120px;width:560px;height:560px;border-radius:50%;background:radial-gradient(circle,rgba(46,139,255,.24),transparent 66%);filter:blur(10px);pointer-events:none}
.hero-grid{display:grid;grid-template-columns:minmax(0,1.05fr) minmax(0,.95fr);gap:46px;align-items:center;position:relative}
.hero-title{font-size:clamp(28px,4vw,44px);line-height:1.24;margin-bottom:18px;letter-spacing:.8px}
.hero-lead{color:#b9cbe8;font-size:16.5px;max-width:560px;margin-bottom:26px}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:24px}
.hero-tags{display:flex;flex-wrap:wrap;gap:10px}
.tag{display:inline-flex;align-items:center;padding:6px 13px;border-radius:999px;border:1px solid var(--line);background:var(--glass);color:#a9c3e8;font-size:13px;white-space:nowrap}
.hero-panel{background:linear-gradient(180deg,rgba(18,34,64,.9),rgba(8,18,38,.94));border:1px solid var(--line-strong);border-radius:var(--radius-lg);box-shadow:var(--shadow);padding:22px;backdrop-filter:blur(12px)}
.panel-head{display:flex;align-items:center;justify-content:space-between;gap:12px;padding-bottom:14px;margin-bottom:6px;border-bottom:1px solid var(--line)}
.panel-title{font-size:15.5px;font-weight:700;letter-spacing:.6px}
.panel-dot{display:inline-flex;align-items:center;gap:6px;font-size:12px;color:var(--accent);letter-spacing:1px}
.panel-dot::before{content:"";width:7px;height:7px;border-radius:50%;background:var(--accent);box-shadow:0 0 10px var(--accent)}
.panel-list{display:flex;flex-direction:column;gap:2px;padding:8px 0 0}
.panel-item{display:flex;gap:12px;padding:12px 0;border-bottom:1px dashed rgba(110,160,255,.14);min-width:0}
.panel-item:last-child{border-bottom:none}
.item-num{flex:0 0 26px;width:26px;height:26px;border-radius:8px;display:flex;align-items:center;justify-content:center;font-size:12.5px;font-weight:700;color:#04101f;background:linear-gradient(135deg,var(--primary-2),var(--accent))}
.item-text{min-width:0;font-size:14.5px;color:#cfdff5;line-height:1.6}
.item-text b{display:block;color:#eaf3ff;font-size:14.5px;font-weight:700;margin-bottom:2px}
.panel-foot{display:flex;flex-wrap:wrap;gap:8px;margin-top:14px;padding-top:14px;border-top:1px solid var(--line)}

/* facts */
.facts-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:16px}
.fact-card{background:var(--glass);border:1px solid var(--line);border-radius:var(--radius);padding:20px;min-width:0;transition:transform .25s ease,border-color .25s ease,background .25s ease}
.fact-card:hover{transform:translateY(-3px);border-color:var(--line-strong);background:var(--glass-strong)}
.fact-label{font-size:12.5px;color:var(--muted);letter-spacing:1.4px;margin-bottom:8px}
.fact-value{font-size:16px;font-weight:700;color:#eaf3ff;line-height:1.5}
.fact-note{font-size:13px;color:var(--muted);margin:6px 0 0}

/* cards */
.feature-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:20px}
.feature-card{position:relative;background:linear-gradient(180deg,rgba(16,30,56,.78),rgba(8,18,38,.86));border:1px solid var(--line);border-radius:var(--radius-lg);padding:24px;min-width:0;transition:transform .25s ease,border-color .25s ease,box-shadow .25s ease}
.feature-card:hover{transform:translateY(-4px);border-color:var(--line-strong);box-shadow:0 18px 40px rgba(0,0,0,.42)}
.card-icon{width:42px;height:42px;border-radius:12px;display:flex;align-items:center;justify-content:center;font-size:15px;font-weight:700;color:#04101f;background:linear-gradient(135deg,rgba(76,196,255,.95),rgba(46,230,197,.95));margin-bottom:16px}
.card-title{font-size:17px;margin-bottom:10px}
.card-text{color:var(--muted);font-size:14.5px;margin:0}

/* flow */
.flow-grid{display:grid;grid-template-columns:repeat(5,minmax(0,1fr));gap:16px}
.flow-card{position:relative;background:var(--glass);border:1px solid var(--line);border-radius:var(--radius);padding:22px 18px;min-width:0;transition:border-color .25s ease,background .25s ease,transform .25s ease}
.flow-card:hover{border-color:var(--line-strong);background:var(--glass-strong);transform:translateY(-3px)}
.flow-step{display:inline-flex;align-items:center;justify-content:center;width:32px;height:32px;border-radius:10px;font-size:13.5px;font-weight:700;color:#bcd9ff;border:1px solid var(--line-strong);background:rgba(46,139,255,.14);margin-bottom:14px}
.flow-title{font-size:15.5px;margin-bottom:8px}
.flow-text{font-size:13.8px;color:var(--muted);margin:0;line-height:1.65}

/* scene */
.scene-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:20px}
.scene-card{background:linear-gradient(160deg,rgba(18,36,68,.82),rgba(7,16,34,.9));border:1px solid var(--line);border-radius:var(--radius-lg);padding:26px;min-width:0;transition:transform .25s ease,border-color .25s ease}
.scene-card:hover{transform:translateY(-4px);border-color:var(--line-strong)}
.scene-head{display:flex;align-items:center;gap:10px;margin-bottom:14px}
.scene-badge{font-size:12px;letter-spacing:1px;color:#0a1b2f;background:linear-gradient(135deg,var(--primary-2),var(--accent));border-radius:8px;padding:3px 10px;font-weight:700;white-space:nowrap}
.scene-title{font-size:16.5px;margin:0}
.scene-text{color:var(--muted);font-size:14.5px}
.scene-list{margin-top:14px;display:flex;flex-direction:column;gap:8px}
.scene-list li{position:relative;padding-left:18px;font-size:14px;color:#c3d6ef}
.scene-list li::before{content:"";position:absolute;left:0;top:.62em;width:7px;height:7px;border-radius:50%;background:rgba(76,196,255,.85);box-shadow:0 0 8px rgba(76,196,255,.7)}

/* risk */
.risk-panel{background:linear-gradient(150deg,rgba(20,38,70,.86),rgba(7,16,34,.92));border:1px solid var(--line-strong);border-radius:var(--radius-lg);padding:34px;box-shadow:var(--shadow)}
.risk-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:16px;margin-top:8px}
.risk-item{display:flex;gap:14px;background:rgba(255,255,255,.035);border:1px solid var(--line);border-radius:var(--radius);padding:18px;min-width:0}
.risk-mark{flex:0 0 34px;width:34px;height:34px;border-radius:10px;display:flex;align-items:center;justify-content:center;font-size:13px;font-weight:700;color:#ffdca8;background:rgba(255,182,77,.14);border:1px solid rgba(255,182,77,.36)}
.risk-body{min-width:0}
.risk-title{font-size:15px;font-weight:700;margin-bottom:4px;color:#eaf3ff}
.risk-text{font-size:14px;color:var(--muted);margin:0}

/* faq */
.faq-list{display:flex;flex-direction:column;gap:14px;max-width:900px}
.faq-item{background:var(--glass);border:1px solid var(--line);border-radius:var(--radius);padding:22px 24px;min-width:0;transition:border-color .25s ease,background .25s ease}
.faq-item:hover{border-color:var(--line-strong);background:var(--glass-strong)}
.faq-q{font-size:16px;font-weight:700;margin-bottom:8px;display:flex;gap:10px;align-items:flex-start}
.faq-q::before{content:"问";flex:0 0 22px;width:22px;height:22px;border-radius:7px;font-size:12px;color:#04101f;background:linear-gradient(135deg,var(--primary-2),var(--accent));display:flex;align-items:center;justify-content:center;margin-top:4px}
.faq-a{font-size:14.6px;color:var(--muted);margin:0;padding-left:32px}

/* download */
.download-panel{background:linear-gradient(140deg,rgba(22,44,82,.9),rgba(6,14,30,.94));border:1px solid var(--line-strong);border-radius:var(--radius-lg);padding:38px;box-shadow:var(--shadow);position:relative;overflow:hidden}
.download-panel::after{content:"";position:absolute;right:-120px;top:-120px;width:340px;height:340px;border-radius:50%;background:radial-gradient(circle,rgba(46,230,197,.18),transparent 68%);pointer-events:none}
.download-panel .section-head{margin-bottom:26px}
.dl-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:18px}
.dl-card{background:rgba(255,255,255,.04);border:1px solid var(--line);border-radius:var(--radius);padding:22px;display:flex;flex-direction:column;gap:12px;min-width:0;transition:transform .25s ease,border-color .25s ease}
.dl-card:hover{transform:translateY(-3px);border-color:var(--line-strong)}
.dl-title{font-size:16.5px;font-weight:700;color:#eaf3ff;margin:0}
.dl-desc{font-size:13.8px;color:var(--muted);margin:0;flex:1 1 auto}
.dl-btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;width:100%;padding:13px 18px;border-radius:12px;font-size:15px;font-weight:700;color:#03101f;background:linear-gradient(135deg,#2e8bff,#4cc4ff);box-shadow:var(--glow);transition:transform .22s ease,box-shadow .22s ease,color .22s ease}
.dl-btn:hover{color:#03101f;transform:translateY(-2px);box-shadow:0 14px 38px rgba(46,139,255,.55)}
.dl-btn:focus-visible{outline:2px solid var(--accent);outline-offset:3px}

/* cta band */
.cta-band{padding:0 0 96px}
.cta-inner{display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:22px;background:linear-gradient(120deg,rgba(46,139,255,.16),rgba(46,230,197,.09));border:1px solid var(--line-strong);border-radius:var(--radius-lg);padding:32px 34px}
.cta-title{font-size:20px;margin-bottom:6px}
.cta-text{color:var(--muted);font-size:14.5px;margin:0;max-width:620px}

/* footer */
.site-footer{background:linear-gradient(180deg,rgba(6,13,28,.92),rgba(3,7,16,1));border-top:1px solid var(--line);padding:64px 0 30px;margin-top:20px}
.footer-grid{display:grid;grid-template-columns:minmax(0,1.6fr) repeat(2,minmax(0,1fr));gap:38px;padding-bottom:34px;border-bottom:1px solid var(--line)}
.footer-brand{min-width:0}
.footer-brand p{color:var(--muted);font-size:14.2px;margin:16px 0 0;max-width:520px}
.footer-col{min-width:0}
.footer-col h3{font-size:15px;margin-bottom:14px;color:#dfeaff;letter-spacing:.6px}
.footer-col ul{display:flex;flex-direction:column;gap:10px}
.footer-col a{color:var(--muted);font-size:14.2px}
.footer-col a:hover{color:#9fdcff}
.friend-links{padding:26px 0 6px;border-bottom:1px solid var(--line)}
.friend-links h3{font-size:15px;margin-bottom:14px;color:#dfeaff;letter-spacing:.6px}
.link-cloud{display:flex;flex-wrap:wrap;gap:10px 18px;padding-bottom:20px}
.link-cloud a{font-size:14px;color:var(--muted);padding:4px 12px;border:1px solid var(--line);border-radius:999px;background:var(--glass);transition:color .2s ease,border-color .2s ease,background .2s ease}
.link-cloud a:hover{color:#9fdcff;border-color:var(--line-strong);background:rgba(46,139,255,.14)}
.risk-note{color:#7f92b3;font-size:13px;line-height:1.8;margin:22px 0 0}
.footer-bottom{display:flex;flex-wrap:wrap;justify-content:space-between;gap:10px;margin-top:20px;padding-top:18px;border-top:1px solid var(--line)}
.footer-bottom p{color:#7286a8;font-size:13px;margin:0}

/* responsive */
@media (max-width:1024px){
  .hero-grid{grid-template-columns:minmax(0,1fr);gap:34px}
  .hero-lead{max-width:none}
  .facts-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .feature-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .flow-grid{grid-template-columns:repeat(3,minmax(0,1fr))}
  .scene-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .footer-grid{grid-template-columns:minmax(0,1fr) minmax(0,1fr)}
}
@media (max-width:768px){
  .section{padding:64px 0}
  .section--tight{padding:50px 0}
  .page-hero{padding:112px 0 56px}
  .flow-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .risk-grid{grid-template-columns:minmax(0,1fr)}
  .dl-grid{grid-template-columns:minmax(0,1fr)}
  .risk-panel,.download-panel{padding:26px}
  .footer-grid{grid-template-columns:minmax(0,1fr);gap:28px}
  .cta-inner{padding:26px}
  .header-cta{display:none}
}
@media (max-width:520px){
  .site-container{padding:0 18px}
  .header-inner{padding:0 18px}
  .facts-grid{grid-template-columns:minmax(0,1fr)}
  .feature-grid{grid-template-columns:minmax(0,1fr)}
  .flow-grid{grid-template-columns:minmax(0,1fr)}
  .scene-grid{grid-template-columns:minmax(0,1fr)}
  .hero-title{font-size:26px}
  .hero-actions .btn{width:100%}
  .faq-item{padding:18px}
  .faq-a{padding-left:0}
  .brand-sub{display:none}
}