/* roulang page: index */
:root{
  --bg:#050a17;
  --bg-soft:#081226;
  --panel:linear-gradient(160deg,rgba(28,52,94,.72),rgba(9,19,38,.78));
  --panel-flat:rgba(14,28,54,.62);
  --line:rgba(92,166,255,.16);
  --line-strong:rgba(92,166,255,.42);
  --text:#e8f0ff;
  --muted:#93a9cb;
  --cyan:#2ee6d6;
  --blue:#3b82f6;
  --violet:#7c5cff;
  --radius:14px;
  --radius-sm:10px;
  --shadow:0 14px 34px rgba(2,8,22,.5);
  --shadow-hover:0 22px 48px rgba(2,8,22,.68);
  --gap:24px;
}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  background:var(--bg);
  color:var(--text);
  font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:16px;
  line-height:1.75;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{display:block;max-width:100%;height:auto}
a{color:inherit;text-decoration:none}
button,input,select{font:inherit;color:inherit}
button{border:0;background:none;cursor:pointer}
ul,ol{list-style:none}
a:focus-visible,button:focus-visible,input:focus-visible,select:focus-visible,summary:focus-visible{
  outline:2px solid var(--cyan);outline-offset:3px;border-radius:6px;
}
.container{width:min(1180px,calc(100% - 48px));margin-inline:auto}

/* ============ HEADER / NAV ============ */
.site-header{
  position:sticky;top:0;z-index:80;
  background:rgba(5,10,23,.76);
  backdrop-filter:blur(16px);
  -webkit-backdrop-filter:blur(16px);
  border-bottom:1px solid var(--line);
  transition:box-shadow .25s ease,background .25s ease;
}
.site-header.is-stuck{box-shadow:0 12px 32px rgba(0,0,0,.5);background:rgba(5,10,23,.92)}
.nav-wrap{display:flex;align-items:center;gap:18px;min-height:64px}
.logo{display:flex;align-items:center;gap:10px;flex-shrink:0}
.logo-mark{
  width:34px;height:34px;border-radius:10px;
  background:linear-gradient(140deg,var(--cyan),var(--blue));
  display:grid;place-items:center;color:#04101f;font-weight:900;font-size:15px;
  box-shadow:0 0 18px rgba(46,230,214,.4);
}
.logo-text{font-weight:800;font-size:16px;letter-spacing:.4px;white-space:nowrap}
.logo-text span{color:var(--cyan)}
.nav-links{display:flex;align-items:center;gap:6px;margin-left:auto}
.nav-link{
  padding:8px 14px;border-radius:var(--radius-sm);font-size:15px;color:var(--muted);
  transition:color .2s ease,background .2s ease;white-space:nowrap;
}
.nav-link:hover{color:var(--text);background:rgba(92,166,255,.12)}
.nav-link.active{
  color:#04101f;font-weight:700;
  background:linear-gradient(135deg,var(--cyan),#5aa9ff);
  box-shadow:0 0 20px rgba(46,230,214,.35);
}
.nav-loc{
  display:flex;align-items:center;gap:6px;flex-shrink:0;
  padding:7px 13px;border:1px solid var(--line);border-radius:999px;
  font-size:13px;color:var(--muted);transition:.2s;
}
.nav-loc svg{width:15px;height:15px;color:var(--cyan)}
.nav-loc:hover{border-color:var(--line-strong);color:var(--text)}
.nav-cta{
  display:inline-flex;align-items:center;justify-content:center;
  padding:9px 20px;border-radius:var(--radius-sm);font-size:14px;font-weight:700;
  color:#04101f;background:linear-gradient(135deg,var(--cyan),var(--blue));
  box-shadow:0 0 20px rgba(46,230,214,.42);
  transition:transform .2s ease,box-shadow .2s ease;flex-shrink:0;
}
.nav-cta:hover{transform:translateY(-2px);box-shadow:0 0 28px rgba(46,230,214,.62)}
.nav-toggle{
  display:none;width:40px;height:40px;border:1px solid var(--line);border-radius:10px;
  align-items:center;justify-content:center;color:var(--text);
}
.nav-toggle svg{width:20px;height:20px}

/* ============ HERO ============ */
.hero{position:relative;padding:0}
.hero-slab{
  position:relative;overflow:hidden;
  clip-path:polygon(0 0,100% 0,100% 88%,0 100%);
  background:linear-gradient(120deg,#0b1c3a 0%,#071228 58%,#0a1e3d 100%);
  padding:78px 0 108px;
}
.hero-media{position:absolute;inset:0;z-index:0}
.hero-media img{width:100%;height:100%;object-fit:cover;opacity:.3}
.hero-media::after{
  content:"";position:absolute;inset:0;
  background:
    radial-gradient(760px 420px at 15% 8%,rgba(46,230,214,.22),transparent 62%),
    linear-gradient(180deg,rgba(5,10,23,.42),rgba(5,10,23,.94));
}
.hero-inner{position:relative;z-index:1;max-width:880px}
.hero-badge{
  display:inline-flex;align-items:center;gap:8px;
  padding:6px 14px;border-radius:999px;font-size:13px;letter-spacing:.6px;
  color:var(--cyan);border:1px solid rgba(46,230,214,.34);
  background:rgba(46,230,214,.08);margin-bottom:20px;
}
.hero h1{
  font-size:clamp(30px,4.2vw,44px);
  line-height:1.28;font-weight:800;letter-spacing:.5px;
  text-shadow:0 6px 30px rgba(0,0,0,.5);
}
.hero h1 em{font-style:normal;color:var(--cyan)}
.hero-lead{
  margin-top:20px;max-width:780px;font-size:16px;line-height:1.85;color:#c3d4ee;
}
.hero-actions{margin-top:28px;display:flex;flex-wrap:wrap;gap:14px}
.hero-tags{margin-top:30px;display:flex;flex-wrap:wrap;gap:10px}
.tag{
  display:inline-flex;align-items:center;gap:6px;
  padding:6px 14px;border-radius:999px;font-size:13px;color:#b8cbe8;
  border:1px solid var(--line);background:rgba(12,26,50,.6);
}
.tag::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--cyan);box-shadow:0 0 8px var(--cyan)}

/* ============ BUTTONS ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:12px 26px;border-radius:var(--radius-sm);
  font-size:15px;font-weight:700;border:1px solid transparent;
  transition:transform .2s ease,box-shadow .2s ease,background .2s ease,border-color .2s ease;
}
.btn-primary{
  background:linear-gradient(135deg,var(--cyan),var(--blue));color:#04101f;
  box-shadow:0 0 24px rgba(46,230,214,.45);
}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 0 36px rgba(46,230,214,.68)}
.btn-primary:active{transform:translateY(0);box-shadow:0 0 18px rgba(46,230,214,.5)}
.btn-ghost{
  border-color:var(--line-strong);color:var(--text);
  background:rgba(46,230,214,.06);
}
.btn-ghost:hover{background:rgba(46,230,214,.15);transform:translateY(-2px)}
.btn-sm{padding:8px 18px;font-size:14px}

/* ============ SECTION ============ */
.section{padding:76px 0;position:relative}
.section--alt{background:linear-gradient(180deg,rgba(8,18,38,.7),rgba(5,10,23,0));border-block:1px solid var(--line)}
.section--deep{background:radial-gradient(900px 420px at 78% 0%,rgba(59,130,246,.16),transparent 64%),rgba(6,13,28,.85);border-block:1px solid var(--line)}
.section-head{max-width:760px;margin-bottom:42px}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;letter-spacing:1.6px;color:var(--cyan);margin-bottom:12px;font-weight:600;
}
.eyebrow::before{content:"";width:22px;height:2px;border-radius:2px;background:linear-gradient(90deg,var(--cyan),transparent)}
.section-title{font-size:clamp(22px,2.8vw,30px);line-height:1.4;font-weight:800;letter-spacing:.4px}
.section-desc{margin-top:14px;font-size:15.5px;line-height:1.85;color:var(--muted)}

/* ============ CARDS ============ */
.card{
  background:var(--panel);
  border:1px solid var(--line);
  border-radius:var(--radius);
  padding:24px;
  backdrop-filter:blur(12px);
  -webkit-backdrop-filter:blur(12px);
  box-shadow:var(--shadow);
  transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease;
}
.card:hover{
  transform:translateY(-4px);
  box-shadow:var(--shadow-hover);
  border-color:var(--line-strong);
}
.card h3{font-size:17px;line-height:1.5;margin-bottom:10px;font-weight:700}
.card p{font-size:14.5px;line-height:1.8;color:var(--muted)}
.card-icon{
  width:44px;height:44px;border-radius:12px;display:grid;place-items:center;
  margin-bottom:16px;color:var(--cyan);
  background:rgba(46,230,214,.1);border:1px solid rgba(46,230,214,.24);
}
.card-icon svg{width:22px;height:22px}

/* ============ STATS ============ */
.stats-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:var(--gap)}
.stat-card{
  background:var(--panel-flat);
  border:1px solid var(--line);border-radius:var(--radius);
  padding:24px 22px;text-align:left;
  backdrop-filter:blur(10px);transition:.22s ease;
}
.stat-card:hover{border-color:var(--line-strong);transform:translateY(-3px)}
.stat-num{
  font-size:clamp(24px,3vw,32px);font-weight:800;line-height:1.2;
  background:linear-gradient(135deg,var(--cyan),#7db6ff);
  -webkit-background-clip:text;background-clip:text;color:transparent;
}
.stat-label{margin-top:8px;font-size:14px;color:var(--muted)}

/* ============ GRIDS ============ */
.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:var(--gap)}
.grid-2{display:grid;grid-template-columns:repeat(2,1fr);gap:var(--gap)}
.grid-4{display:grid;grid-template-columns:repeat(4,1fr);gap:var(--gap)}

/* ============ CHANNEL ============ */
.channel-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:var(--gap)}
.channel-card{
  position:relative;overflow:hidden;
  border:1px solid var(--line);border-radius:var(--radius);
  padding:26px 24px;background:var(--panel);
  backdrop-filter:blur(12px);box-shadow:var(--shadow);
  transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease;
  display:flex;flex-direction:column;gap:12px;
}
.channel-card::after{
  content:"";position:absolute;right:-40px;top:-40px;width:130px;height:130px;border-radius:50%;
  background:radial-gradient(circle,rgba(46,230,214,.24),transparent 68%);
  opacity:.8;transition:.3s ease;
}
.channel-card:hover{transform:translateY(-4px);border-color:var(--line-strong);box-shadow:var(--shadow-hover)}
.channel-card:hover::after{opacity:1;transform:scale(1.15)}
.channel-card h3{font-size:18px;font-weight:700}
.channel-card p{font-size:14px;color:var(--muted);line-height:1.8}
.channel-more{font-size:14px;color:var(--cyan);font-weight:600;display:inline-flex;align-items:center;gap:6px;margin-top:auto}
.channel-more svg{width:15px;height:15px;transition:transform .2s ease}
.channel-card:hover .channel-more svg{transform:translateX(4px)}

/* ============ STEPS ============ */
.steps-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:var(--gap)}
.step{
  position:relative;padding:26px 24px 24px;
  border:1px solid var(--line);border-radius:var(--radius);
  background:var(--panel-flat);backdrop-filter:blur(10px);
  transition:.22s ease;
}
.step:hover{border-color:var(--line-strong);transform:translateY(-4px)}
.step-num{
  display:inline-grid;place-items:center;
  width:36px;height:36px;border-radius:10px;margin-bottom:14px;
  font-weight:800;font-size:15px;color:#04101f;
  background:linear-gradient(135deg,var(--cyan),var(--blue));
  box-shadow:0 0 16px rgba(46,230,214,.4);
}
.step h3{font-size:17px;margin-bottom:8px}
.step p{font-size:14.5px;color:var(--muted);line-height:1.8}

/* ============ COMPARE ============ */
.compare{display:flex;flex-direction:column;gap:14px}
.compare-row{
  display:grid;grid-template-columns:1fr 54px 1fr;align-items:center;gap:16px;
  padding:18px 22px;border:1px solid var(--line);border-radius:var(--radius);
  background:rgba(10,22,44,.55);transition:.22s ease;
}
.compare-row:hover{border-color:var(--line-strong);background:rgba(14,30,58,.72)}
.compare-cell{font-size:14.5px;line-height:1.7}
.compare-cell.old{color:#8fa2c0}
.compare-cell.new{color:var(--text);font-weight:600}
.compare-cell.new span{color:var(--cyan)}
.compare-arrow{display:grid;place-items:center;color:var(--cyan)}
.compare-arrow svg{width:22px;height:22px}

/* ============ PLATFORM ============ */
.platform-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
.platform-item{
  display:flex;align-items:center;gap:12px;
  padding:16px 18px;border:1px solid var(--line);border-radius:var(--radius-sm);
  background:rgba(10,22,44,.5);font-size:14.5px;transition:.2s ease;
}
.platform-item:hover{border-color:var(--line-strong);background:rgba(16,32,62,.7)}
.platform-item svg{width:20px;height:20px;color:var(--cyan);flex-shrink:0}
.platform-item strong{font-weight:700}
.platform-item em{font-style:normal;color:var(--muted);font-size:13px;margin-left:auto}

/* ============ TIMELINE ============ */
.timeline{position:relative;padding-left:26px;display:flex;flex-direction:column;gap:22px}
.timeline::before{
  content:"";position:absolute;left:6px;top:6px;bottom:6px;width:2px;
  background:linear-gradient(180deg,var(--cyan),rgba(59,130,246,.15));
}
.tl-item{position:relative}
.tl-item::before{
  content:"";position:absolute;left:-25px;top:7px;width:12px;height:12px;border-radius:50%;
  background:var(--bg);border:2px solid var(--cyan);box-shadow:0 0 12px rgba(46,230,214,.6);
}
.tl-item h3{font-size:16px;font-weight:700;margin-bottom:4px}
.tl-item p{font-size:14px;color:var(--muted);line-height:1.8}
.tl-time{font-size:12.5px;color:var(--cyan);letter-spacing:1px;margin-bottom:4px;display:block}

/* ============ REVIEW ============ */
.review-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:var(--gap)}
.review-card{
  padding:24px;border:1px solid var(--line);border-radius:var(--radius);
  background:var(--panel);backdrop-filter:blur(12px);box-shadow:var(--shadow);
  transition:.22s ease;
}
.review-card:hover{transform:translateY(-4px);border-color:var(--line-strong);box-shadow:var(--shadow-hover)}
.review-text{font-size:15px;line-height:1.85;color:#c9d8ef}
.review-text::before{content:"“";color:var(--cyan);font-size:20px;margin-right:2px}
.review-text::after{content:"”";color:var(--cyan);font-size:20px;margin-left:2px}
.review-user{margin-top:16px;display:flex;align-items:center;gap:10px;font-size:13.5px;color:var(--muted)}
.avatar{
  width:32px;height:32px;border-radius:50%;display:grid;place-items:center;
  font-size:13px;font-weight:700;color:#04101f;
  background:linear-gradient(135deg,var(--cyan),var(--blue));
}

/* ============ SPEC ============ */
.spec-list{display:grid;grid-template-columns:repeat(2,1fr);gap:14px}
.spec-item{
  display:flex;align-items:center;justify-content:space-between;gap:14px;
  padding:16px 20px;border:1px solid var(--line);border-radius:var(--radius-sm);
  background:rgba(10,22,44,.52);font-size:14.5px;transition:.2s ease;
}
.spec-item:hover{border-color:var(--line-strong)}
.spec-item span:first-child{color:var(--muted)}
.spec-item span:last-child{font-weight:700;color:var(--text)}

/* ============ RANK ============ */
.rank-list{display:flex;flex-direction:column;gap:12px}
.rank-item{
  display:grid;grid-template-columns:52px 1fr auto;align-items:center;gap:18px;
  padding:16px 20px;border:1px solid var(--line);border-radius:var(--radius);
  background:rgba(10,22,44,.52);transition:.22s ease;
}
.rank-item:hover{border-color:var(--line-strong);transform:translateX(4px);background:rgba(15,32,62,.72)}
.rank-num{
  font-size:20px;font-weight:800;color:transparent;
  background:linear-gradient(135deg,var(--cyan),#5aa9ff);
  -webkit-background-clip:text;background-clip:text;
}
.rank-body h3{font-size:15.5px;font-weight:700;margin-bottom:2px}
.rank-body p{font-size:13.5px;color:var(--muted);line-height:1.7}
.rank-badge{
  font-size:12.5px;padding:5px 12px;border-radius:999px;
  color:var(--cyan);border:1px solid rgba(46,230,214,.3);background:rgba(46,230,214,.08);
  white-space:nowrap;
}

/* ============ NOTICE ============ */
.notice{
  display:flex;gap:16px;align-items:flex-start;
  padding:22px 24px;border-radius:var(--radius);
  border:1px solid rgba(124,92,255,.32);
  background:linear-gradient(120deg,rgba(124,92,255,.14),rgba(10,22,44,.6));
}
.notice svg{width:24px;height:24px;color:#a894ff;flex-shrink:0;margin-top:2px}
.notice h3{font-size:15.5px;margin-bottom:6px}
.notice p{font-size:14px;color:#bccbe4;line-height:1.8}

/* ============ NEWS ============ */
.news-grid{display:grid;grid-template-columns:1.55fr 1fr;gap:var(--gap);align-items:start}
.news-list{display:flex;flex-direction:column;gap:14px}
.news-item{
  display:flex;align-items:flex-start;gap:18px;
  padding:20px 22px;border:1px solid var(--line);border-radius:var(--radius);
  background:var(--panel-flat);backdrop-filter:blur(10px);
  transition:transform .2s ease,border-color .2s ease,box-shadow .2s ease;
}
.news-item:hover{transform:translateY(-3px);border-color:var(--line-strong);box-shadow:var(--shadow)}
.news-body{flex:1;min-width:0}
.news-title{font-size:16px;font-weight:700;line-height:1.55;margin-bottom:6px;transition:color .2s}
.news-item:hover .news-title{color:var(--cyan)}
.news-desc{
  font-size:14px;color:var(--muted);line-height:1.75;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.news-meta{display:flex;flex-direction:column;align-items:flex-end;gap:8px;flex-shrink:0}
.badge{
  font-size:12.5px;padding:4px 12px;border-radius:999px;
  color:var(--cyan);border:1px solid rgba(46,230,214,.3);background:rgba(46,230,214,.08);
  white-space:nowrap;
}
.news-meta time{font-size:12.5px;color:#7f93b3;white-space:nowrap}
.news-side{
  border:1px solid var(--line);border-radius:var(--radius);
  background:var(--panel);padding:24px;backdrop-filter:blur(12px);
}
.news-side h3{font-size:16px;margin-bottom:16px;padding-bottom:12px;border-bottom:1px solid var(--line)}
.side-list{display:flex;flex-direction:column;gap:14px}
.side-item{display:flex;gap:12px;align-items:flex-start;transition:.2s}
.side-item:hover .side-title{color:var(--cyan)}
.side-dot{
  width:6px;height:6px;border-radius:50%;background:var(--cyan);
  margin-top:9px;flex-shrink:0;box-shadow:0 0 8px rgba(46,230,214,.8);
}
.side-title{font-size:14.5px;line-height:1.65;transition:color .2s}
.side-time{font-size:12.5px;color:#7f93b3;margin-top:2px}
.empty{
  padding:26px;border:1px dashed var(--line-strong);border-radius:var(--radius);
  text-align:center;color:var(--muted);font-size:14.5px;
  grid-column:1/-1;
}

/* ============ GUARD ============ */
.guard-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:var(--gap)}
.guard-item{
  padding:22px;border:1px solid var(--line);border-radius:var(--radius);
  background:var(--panel-flat);transition:.22s ease;
}
.guard-item:hover{border-color:var(--line-strong);transform:translateY(-4px)}
.guard-item svg{width:22px;height:22px;color:var(--cyan);margin-bottom:12px}
.guard-item h3{font-size:15.5px;margin-bottom:6px}
.guard-item p{font-size:13.5px;color:var(--muted);line-height:1.75}

/* ============ FAQ ============ */
.faq-list{display:flex;flex-direction:column;gap:12px;max-width:920px}
.faq-item{
  border:1px solid var(--line);border-radius:var(--radius);
  background:rgba(10,22,44,.55);overflow:hidden;transition:.2s ease;
}
.faq-item[open]{border-color:var(--line-strong);background:rgba(14,30,58,.72)}
.faq-item summary{
  list-style:none;cursor:pointer;padding:18px 22px;
  font-size:15.5px;font-weight:700;display:flex;align-items:center;gap:12px;
  transition:color .2s;
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::after{
  content:"+";margin-left:auto;color:var(--cyan);font-size:20px;font-weight:400;line-height:1;
  transition:transform .22s ease;
}
.faq-item[open] summary::after{transform:rotate(45deg)}
.faq-item summary:hover{color:var(--cyan)}
.faq-a{padding:0 22px 20px;font-size:14.5px;line-height:1.85;color:var(--muted)}

/* ============ START FORM ============ */
.start-wrap{
  display:grid;grid-template-columns:1fr 1fr;gap:36px;align-items:center;
  padding:44px;border:1px solid var(--line-strong);border-radius:18px;
  background:
    radial-gradient(600px 300px at 8% 0%,rgba(46,230,214,.18),transparent 62%),
    linear-gradient(150deg,rgba(18,38,72,.85),rgba(7,16,34,.9));
  box-shadow:0 24px 60px rgba(2,8,22,.6);
}
.start-text h2{font-size:clamp(22px,2.6vw,28px);line-height:1.42;margin-bottom:14px}
.start-text p{font-size:15px;color:var(--muted);line-height:1.85}
.start-points{margin-top:20px;display:flex;flex-wrap:wrap;gap:10px}
.start-form{display:flex;flex-direction:column;gap:14px}
.field{display:flex;flex-direction:column;gap:6px}
.field label{font-size:13.5px;color:var(--muted)}
.field input,.field select{
  width:100%;padding:12px 14px;border-radius:var(--radius-sm);
  border:1px solid var(--line);background:rgba(5,12,26,.75);color:var(--text);
  font-size:14.5px;transition:border-color .2s ease,box-shadow .2s ease;
  appearance:none;
}
.field input::placeholder{color:#6b7fa0}
.field input:focus,.field select:focus{
  border-color:var(--line-strong);box-shadow:0 0 0 3px rgba(46,230,214,.14);outline:none;
}
.form-note{font-size:13px;color:#8fe8de;min-height:20px}
.form-hint{font-size:12.5px;color:#7f93b3}

/* ============ FOOTER ============ */
.site-footer{
  border-top:1px solid var(--line);
  background:linear-gradient(180deg,rgba(6,13,28,.6),rgba(4,9,20,1));
  padding:56px 0 0;
}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr;gap:40px;padding-bottom:40px}
.footer-brand .logo{margin-bottom:14px}
.footer-brand p{font-size:14px;color:var(--muted);line-height:1.85;max-width:340px}
.footer-title{font-size:15px;font-weight:700;margin-bottom:16px;color:var(--text)}
.footer-links{display:flex;flex-direction:column;gap:10px}
.footer-links a{font-size:14px;color:var(--muted);transition:color .2s ease,transform .2s ease;width:fit-content}
.footer-links a:hover{color:var(--cyan);transform:translateX(3px)}
.footer-bottom{
  border-top:1px solid var(--line);padding:20px 0;
  display:flex;flex-wrap:wrap;gap:10px;justify-content:space-between;align-items:center;
  font-size:13px;color:#7f93b3;
}

/* ============ RESPONSIVE ============ */
@media (max-width:1024px){
  .stats-grid{grid-template-columns:repeat(2,1fr)}
  .grid-4,.guard-grid{grid-template-columns:repeat(2,1fr)}
  .channel-grid,.steps-grid,.platform-grid,.grid-3{grid-template-columns:repeat(2,1fr)}
  .news-grid{grid-template-columns:1fr}
  .start-wrap{grid-template-columns:1fr;padding:34px}
  .nav-loc{display:none}
}
@media (max-width:768px){
  .container{width:calc(100% - 32px)}
  .nav-toggle{display:inline-flex}
  .nav-cta{display:none}
  .nav-links{
    position:absolute;left:0;right:0;top:64px;
    flex-direction:column;align-items:stretch;gap:6px;
    padding:16px;margin:0;
    background:rgba(5,10,23,.98);
    border-bottom:1px solid var(--line);
    box-shadow:0 18px 40px rgba(0,0,0,.55);
    display:none;
  }
  .nav-links.open{display:flex}
  .nav-link{padding:12px 14px;font-size:15px}
  .section{padding:56px 0}
  .hero-slab{padding:56px 0 84px;clip-path:polygon(0 0,100% 0,100% 93%,0 100%)}
  .stats-grid,.grid-3,.grid-2,.grid-4,.channel-grid,.steps-grid,
  .platform-grid,.guard-grid,.review-grid,.spec-list{grid-template-columns:1fr}
  .compare-row{grid-template-columns:1fr;gap:8px;text-align:left}
  .compare-arrow{justify-content:flex-start;transform:rotate(90deg);width:22px}
  .footer-grid{grid-template-columns:1fr;gap:28px}
  .rank-item{grid-template-columns:40px 1fr;row-gap:8px}
  .rank-badge{grid-column:2;justify-self:start}
  .start-wrap{padding:26px}
}
@media (max-width:520px){
  .hero h1{font-size:27px}
  .hero-lead{font-size:15px}
  .section-title{font-size:21px}
  .news-item{flex-direction:column;gap:10px}
  .news-meta{flex-direction:row;align-items:center;gap:10px}
  .stat-card{padding:20px}
  .logo-text{font-size:14.5px}
  .logo-mark{width:30px;height:30px;font-size:13px}
  .btn{width:100%}
  .hero-actions{width:100%}
}

/* roulang page: article */
:root{
 --bg:#050a17;
 --bg-soft:#081226;
 --panel:linear-gradient(160deg,rgba(28,52,94,.72),rgba(9,19,38,.78));
 --panel-flat:rgba(14,28,54,.62);
 --line:rgba(92,166,255,.16);
 --line-strong:rgba(92,166,255,.42);
 --text:#e8f0ff;
 --muted:#93a9cb;
 --cyan:#2ee6d6;
 --blue:#3b82f6;
 --violet:#7c5cff;
 --radius:14px;
 --radius-sm:10px;
 --shadow:0 14px 34px rgba(2,8,22,.5);
 --shadow-hover:0 22px 48px rgba(2,8,22,.68);
 --gap:24px;
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{
 margin:0;
 background:var(--bg);
 color:var(--text);
 font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
 font-size:16px;
 line-height:1.75;
 -webkit-font-smoothing:antialiased;
 overflow-x:hidden;
}
img{display:block;max-width:100%;height:auto}
a{color:inherit;text-decoration:none}
button,input,select{font:inherit;color:inherit}
button{border:0;background:none;cursor:pointer}
h1,h2,h3,h4,p,figure{margin:0}
ul,ol{margin:0;padding:0;list-style:none}
a:focus-visible,button:focus-visible,summary:focus-visible{outline:2px solid var(--cyan);outline-offset:3px;border-radius:6px}
.container{width:min(1180px,calc(100% - 48px));margin-inline:auto}

/* ============ HEADER / NAV ============ */
.site-header{
 position:sticky;top:0;z-index:80;
 background:rgba(5,10,23,.76);
 backdrop-filter:blur(16px);
 -webkit-backdrop-filter:blur(16px);
 border-bottom:1px solid var(--line);
 transition:box-shadow .25s ease,background .25s ease;
}
.site-header.is-stuck{box-shadow:0 12px 32px rgba(0,0,0,.5);background:rgba(5,10,23,.92)}
.nav-wrap{display:flex;align-items:center;gap:18px;min-height:64px;position:relative}
.logo{display:flex;align-items:center;gap:10px;flex-shrink:0}
.logo-mark{
 width:34px;height:34px;border-radius:10px;
 background:linear-gradient(140deg,var(--cyan),var(--blue));
 display:grid;place-items:center;color:#04101f;font-weight:900;font-size:15px;
 box-shadow:0 0 18px rgba(46,230,214,.4);
}
.logo-text{font-weight:800;font-size:16px;letter-spacing:.4px;white-space:nowrap}
.logo-text span{color:var(--cyan)}
.nav-links{display:flex;align-items:center;gap:6px;margin-left:auto}
.nav-link{
 padding:8px 14px;border-radius:var(--radius-sm);font-size:15px;color:var(--muted);
 transition:color .2s ease,background .2s ease;white-space:nowrap;
}
.nav-link:hover{color:var(--text);background:rgba(92,166,255,.12)}
.nav-link.active{
 color:#04101f;font-weight:700;
 background:linear-gradient(135deg,var(--cyan),#5aa9ff);
 box-shadow:0 0 20px rgba(46,230,214,.35);
}
.nav-loc{
 display:flex;align-items:center;gap:6px;flex-shrink:0;
 padding:7px 13px;border:1px solid var(--line);border-radius:999px;
 font-size:13px;color:var(--muted);transition:.2s;
}
.nav-loc svg{width:15px;height:15px;color:var(--cyan)}
.nav-loc:hover{border-color:var(--line-strong);color:var(--text)}
.nav-cta{
 display:inline-flex;align-items:center;justify-content:center;
 padding:9px 20px;border-radius:var(--radius-sm);font-size:14px;font-weight:700;
 color:#04101f;background:linear-gradient(135deg,var(--cyan),var(--blue));
 box-shadow:0 0 20px rgba(46,230,214,.42);
 transition:transform .2s ease,box-shadow .2s ease;flex-shrink:0;
}
.nav-cta:hover{transform:translateY(-2px);box-shadow:0 0 28px rgba(46,230,214,.62)}
.nav-toggle{
 display:none;width:40px;height:40px;border:1px solid var(--line);border-radius:10px;
 align-items:center;justify-content:center;color:var(--text);margin-left:auto;
}
.nav-toggle svg{width:20px;height:20px}

/* ============ ARTICLE HERO ============ */
.article-hero{
 position:relative;overflow:hidden;
 padding:46px 0 54px;
 background:linear-gradient(120deg,#0b1c3a 0%,#071228 58%,#0a1e3d 100%);
 border-bottom:1px solid var(--line);
}
.article-hero .hero-bg{position:absolute;inset:0;z-index:0}
.article-hero .hero-bg img{width:100%;height:100%;object-fit:cover;opacity:.24}
.article-hero .hero-bg::after{
 content:"";position:absolute;inset:0;
 background:
 radial-gradient(720px 380px at 12% 0%,rgba(46,230,214,.2),transparent 62%),
 linear-gradient(180deg,rgba(5,10,23,.55),rgba(5,10,23,.94));
}
.article-hero .container{position:relative;z-index:1;max-width:1000px}
.crumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--muted);margin-bottom:20px}
.crumb a{transition:color .2s}
.crumb a:hover{color:var(--cyan)}
.crumb .sep{opacity:.45}
.crumb .current{color:#cfdcf2}
.article-cat{
 display:inline-flex;align-items:center;gap:8px;
 padding:5px 14px;border-radius:999px;font-size:13px;
 color:var(--cyan);border:1px solid rgba(46,230,214,.34);
 background:rgba(46,230,214,.08);margin-bottom:16px;
}
.article-hero h1{
 font-size:clamp(26px,3.6vw,40px);line-height:1.34;font-weight:800;letter-spacing:.4px;
 text-shadow:0 6px 28px rgba(0,0,0,.5);max-width:920px;
}
.article-meta{display:flex;flex-wrap:wrap;align-items:center;gap:10px 20px;margin-top:20px;font-size:14px;color:var(--muted)}
.article-meta .dot{width:5px;height:5px;border-radius:50%;background:var(--cyan);box-shadow:0 0 8px var(--cyan)}
.article-tags{margin-top:24px;display:flex;flex-wrap:wrap;gap:10px}
.tag{
 display:inline-flex;align-items:center;gap:6px;
 padding:6px 14px;border-radius:999px;font-size:13px;color:#b8cbe8;
 border:1px solid var(--line);background:rgba(12,26,50,.6);
}
.tag::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--cyan);box-shadow:0 0 8px var(--cyan)}

/* ============ BUTTONS ============ */
.btn{
 display:inline-flex;align-items:center;justify-content:center;gap:8px;
 padding:12px 26px;border-radius:var(--radius-sm);
 font-size:15px;font-weight:700;border:1px solid transparent;
 transition:transform .2s ease,box-shadow .2s ease,background .2s ease,border-color .2s ease;
}
.btn-primary{
 background:linear-gradient(135deg,var(--cyan),var(--blue));color:#04101f;
 box-shadow:0 0 24px rgba(46,230,214,.45);
}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 0 36px rgba(46,230,214,.68)}
.btn-primary:active{transform:translateY(0);box-shadow:0 0 18px rgba(46,230,214,.5)}
.btn-ghost{border-color:var(--line-strong);color:var(--text);background:rgba(46,230,214,.06)}
.btn-ghost:hover{background:rgba(46,230,214,.15);transform:translateY(-2px)}

/* ============ SECTION ============ */
.section{padding:76px 0;position:relative}
.section--alt{background:linear-gradient(180deg,rgba(8,18,38,.7),rgba(5,10,23,0));border-block:1px solid var(--line)}
.section--deep{background:radial-gradient(900px 420px at 78% 0%,rgba(59,130,246,.16),transparent 64%),rgba(6,13,28,.85);border-block:1px solid var(--line)}
.section-head{max-width:760px;margin-bottom:40px}
.eyebrow{
 display:inline-flex;align-items:center;gap:8px;
 font-size:13px;letter-spacing:1.6px;color:var(--cyan);margin-bottom:12px;font-weight:600;
}
.eyebrow::before{content:"";width:22px;height:2px;border-radius:2px;background:linear-gradient(90deg,var(--cyan),transparent)}
.section-head h2{font-size:clamp(22px,2.6vw,30px);line-height:1.4;font-weight:800;letter-spacing:.3px}
.section-head p{margin-top:14px;font-size:15px;color:var(--muted);line-height:1.85}

/* ============ ARTICLE LAYOUT ============ */
.article-main{padding:56px 0 24px}
.article-grid{display:grid;grid-template-columns:minmax(0,720px) 320px;gap:36px;justify-content:space-between;align-items:start}
.article-content{
 max-width:720px;font-size:16px;line-height:1.85;color:#d3e0f5;
}
.article-content > *:first-child{margin-top:0}
.article-content h2{
 position:relative;font-size:23px;line-height:1.45;font-weight:800;color:#fff;
 margin:38px 0 14px;padding-left:16px;
}
.article-content h2::before{
 content:"";position:absolute;left:0;top:6px;bottom:6px;width:4px;border-radius:2px;
 background:linear-gradient(180deg,var(--cyan),var(--blue));box-shadow:0 0 12px rgba(46,230,214,.6);
}
.article-content h3{font-size:18px;margin:28px 0 10px;color:#eef5ff;font-weight:700}
.article-content h4{font-size:16px;margin:22px 0 8px;color:#eef5ff}
.article-content p{margin:0 0 16px}
.article-content ul,.article-content ol{margin:0 0 18px;padding-left:22px}
.article-content ul{list-style:disc}
.article-content ol{list-style:decimal}
.article-content li{margin-bottom:8px}
.article-content li::marker{color:var(--cyan)}
.article-content strong{color:#ffffff;font-weight:700}
.article-content em{color:var(--cyan);font-style:normal}
.article-content img{border-radius:var(--radius);border:1px solid var(--line);margin:22px 0;box-shadow:var(--shadow)}
.article-content a{color:var(--cyan);text-decoration:underline;text-underline-offset:3px}
.article-content a:hover{color:#7ff5ea}
.article-content blockquote{
 margin:22px 0;padding:16px 20px;border-left:3px solid var(--cyan);
 background:rgba(46,230,214,.07);border-radius:0 var(--radius-sm) var(--radius-sm) 0;color:#c8d9f0;
}
.article-content blockquote p:last-child{margin-bottom:0}
.article-content table{width:100%;border-collapse:collapse;margin:22px 0;font-size:15px}
.article-content th,.article-content td{border:1px solid var(--line);padding:10px 14px;text-align:left}
.article-content th{background:rgba(46,230,214,.08);color:#fff;font-weight:700}
.article-content hr{border:0;border-top:1px solid var(--line);margin:30px 0}
.article-missing{
 background:var(--panel-flat);border:1px solid var(--line);border-radius:var(--radius);
 padding:44px 32px;text-align:center;max-width:720px;
}
.article-missing h2{font-size:22px;color:#fff;margin-bottom:20px}

/* ============ SIDEBAR ============ */
.article-side{position:sticky;top:84px}
.side-card{
 background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);
 padding:20px;box-shadow:var(--shadow);margin-bottom:20px;
 transition:border-color .22s ease,box-shadow .22s ease;
}
.side-card:hover{border-color:var(--line-strong)}
.side-card h3{
 display:flex;align-items:center;gap:9px;font-size:15px;color:#fff;margin-bottom:14px;
}
.side-card h3::before{
 content:"";width:4px;height:16px;border-radius:2px;
 background:linear-gradient(180deg,var(--cyan),var(--blue));box-shadow:0 0 12px rgba(46,230,214,.6);
}
.side-list li + li{border-top:1px dashed var(--line)}
.side-list a{
 display:flex;align-items:center;justify-content:space-between;gap:10px;
 padding:10px 0;font-size:14px;color:#c6d6ee;transition:color .2s ease,transform .2s ease;
}
.side-list a:hover{color:var(--cyan);transform:translateX(3px)}
.side-list a span{font-size:12px;color:#6f85a6}
.side-note{font-size:14px;color:var(--muted);line-height:1.8}
.side-mini{display:grid;gap:12px}
.side-mini div{display:flex;justify-content:space-between;align-items:baseline;font-size:14px;color:#c6d6ee}
.side-mini b{font-size:19px;color:var(--cyan);font-weight:800;text-shadow:0 0 16px rgba(46,230,214,.4)}
.side-cta{
 display:flex;align-items:center;justify-content:center;gap:8px;
 width:100%;padding:11px 18px;border-radius:var(--radius-sm);
 font-size:14px;font-weight:700;color:#04101f;
 background:linear-gradient(135deg,var(--cyan),var(--blue));
 box-shadow:0 0 22px rgba(46,230,214,.4);
 transition:transform .2s ease,box-shadow .2s ease;
}
.side-cta:hover{transform:translateY(-2px);box-shadow:0 0 32px rgba(46,230,214,.6)}

/* ============ STATS ============ */
.stats{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:20px}
.stat{
 background:var(--panel-flat);border:1px solid var(--line);border-radius:var(--radius);
 padding:24px 18px;text-align:center;
 transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease;
}
.stat:hover{transform:translateY(-4px);border-color:var(--line-strong);box-shadow:var(--shadow-hover)}
.stat b{display:block;font-size:28px;font-weight:800;color:var(--cyan);letter-spacing:.5px;text-shadow:0 0 20px rgba(46,230,214,.4)}
.stat span{display:block;margin-top:6px;font-size:13px;color:var(--muted)}

/* ============ CARDS ============ */
.card-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:var(--gap)}
.card{
 background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);
 overflow:hidden;box-shadow:var(--shadow);
 transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease;
}
.card:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover);border-color:var(--line-strong)}
.card-thumb{aspect-ratio:16/9;overflow:hidden;background:#0a1730}
.card-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .45s ease}
.card:hover .card-thumb img{transform:scale(1.06)}
.card-body{padding:18px 20px 20px}
.card-body h3{font-size:17px;color:#fff;margin-bottom:8px;line-height:1.5}
.card-body p{font-size:14px;color:var(--muted);line-height:1.75}
.card-tag{
 display:inline-block;margin-top:14px;font-size:12px;padding:4px 11px;border-radius:999px;
 color:var(--cyan);border:1px solid rgba(46,230,214,.3);background:rgba(46,230,214,.07);
}

/* ============ SPLIT ============ */
.split{display:grid;grid-template-columns:1.05fr .95fr;gap:40px;align-items:center}
.split-media img{
 width:100%;aspect-ratio:16/10;object-fit:cover;
 border-radius:var(--radius);border:1px solid var(--line);box-shadow:var(--shadow);
}
.check-list{display:grid;gap:14px;margin-top:24px}
.check-list li{display:flex;gap:12px;align-items:flex-start;font-size:15px;color:#c8d8ee;line-height:1.8}
.check-list li::before{
 content:"";flex:0 0 auto;width:8px;height:8px;margin-top:10px;border-radius:50%;
 background:linear-gradient(135deg,var(--cyan),var(--blue));box-shadow:0 0 10px rgba(46,230,214,.7);
}
.check-list b{color:#fff}

/* ============ FAQ ============ */
.faq-list{display:grid;gap:12px;max-width:900px}
.faq-item{
 background:var(--panel-flat);border:1px solid var(--line);border-radius:var(--radius);
 padding:0 20px;transition:border-color .22s ease,box-shadow .22s ease;
}
.faq-item[open]{border-color:var(--line-strong);box-shadow:var(--shadow)}
.faq-item summary{
 display:flex;align-items:center;justify-content:space-between;gap:14px;
 padding:17px 0;font-size:15px;font-weight:600;color:#eaf2ff;cursor:pointer;list-style:none;
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::after{content:"+";font-size:20px;line-height:1;color:var(--cyan);transition:transform .2s ease}
.faq-item[open] summary::after{content:"−"}
.faq-item p{padding:0 0 18px;font-size:14px;color:var(--muted);line-height:1.85;max-width:760px}

/* ============ CTA ============ */
.cta-band{
 position:relative;overflow:hidden;border-radius:18px;padding:46px 40px;
 background:linear-gradient(120deg,rgba(46,230,214,.14),rgba(59,130,246,.16)),#081226;
 border:1px solid var(--line-strong);box-shadow:var(--shadow);text-align:center;
}
.cta-band::after{
 content:"";position:absolute;inset:auto -80px -140px auto;width:320px;height:320px;
 border-radius:50%;background:radial-gradient(circle,rgba(46,230,214,.28),transparent 68%);
 pointer-events:none;
}
.cta-band h2{font-size:clamp(21px,2.4vw,28px);font-weight:800;color:#fff;position:relative;z-index:1}
.cta-band p{margin-top:14px;font-size:15px;color:#b9cbe6;max-width:640px;margin-inline:auto;position:relative;z-index:1}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px;justify-content:center;margin-top:26px;position:relative;z-index:1}

/* ============ FOOTER ============ */
.site-footer{border-top:1px solid var(--line);background:#040914;padding:52px 0 0;margin-top:20px}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr;gap:40px;padding-bottom:36px}
.footer-brand p{font-size:14px;color:var(--muted);line-height:1.85;margin-top:16px;max-width:420px}
.footer-title{font-size:15px;color:#fff;margin-bottom:16px}
.footer-links{display:flex;flex-direction:column;gap:10px}
.footer-links a{font-size:14px;color:var(--muted);transition:color .2s ease,transform .2s ease}
.footer-links a:hover{color:var(--cyan);transform:translateX(3px)}
.footer-bottom{
 display:flex;flex-wrap:wrap;gap:10px;justify-content:space-between;align-items:center;
 padding:18px 0 26px;border-top:1px solid var(--line);font-size:13px;color:#6f85a6;
}

/* ============ RESPONSIVE ============ */
@media (max-width:1080px){
 .nav-loc{display:none}
 .article-grid{grid-template-columns:minmax(0,1fr) 290px;gap:28px}
 .stats{grid-template-columns:repeat(2,minmax(0,1fr))}
}
@media (max-width:900px){
 .nav-toggle{display:flex}
 .nav-links{
  position:absolute;top:100%;left:0;right:0;
  flex-direction:column;align-items:stretch;gap:4px;
  padding:12px;margin:0;
  background:rgba(6,13,28,.985);
  border-bottom:1px solid var(--line);
  box-shadow:0 18px 36px rgba(0,0,0,.55);
  display:none;
 }
 .nav-links.is-open{display:flex}
 .nav-link{padding:12px 14px;min-height:44px;display:flex;align-items:center}
 .nav-cta{display:none}
 .article-grid{grid-template-columns:minmax(0,1fr)}
 .article-side{position:static}
 .article-content{max-width:none}
 .split{grid-template-columns:minmax(0,1fr);gap:28px}
 .card-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
 .footer-grid{grid-template-columns:1fr 1fr;gap:30px}
 .footer-brand{grid-column:1 / -1}
}
@media (max-width:640px){
 .container{width:calc(100% - 32px)}
 .article-hero{padding:34px 0 40px}
 .article-hero h1{font-size:24px}
 .section{padding:52px 0}
 .section-head{margin-bottom:28px}
 .stats{grid-template-columns:repeat(2,minmax(0,1fr));gap:14px}
 .stat{padding:18px 14px}
 .stat b{font-size:23px}
 .card-grid{grid-template-columns:minmax(0,1fr)}
 .article-main{padding:38px 0 12px}
 .article-content{font-size:15px}
 .article-content h2{font-size:20px;margin-top:30px}
 .article-content table{font-size:13px}
 .article-content th,.article-content td{padding:8px 9px}
 .cta-band{padding:32px 22px;border-radius:14px}
 .cta-actions .btn{width:100%}
 .footer-grid{grid-template-columns:1fr;gap:26px}
 .footer-bottom{flex-direction:column;align-items:flex-start;font-size:12px}
 .btn{padding:12px 20px;min-height:44px}
}

/* roulang page: category1 */
:root{
 --bg:#050a17;
 --bg-soft:#081226;
 --panel:linear-gradient(160deg,rgba(28,52,94,.72),rgba(9,19,38,.78));
 --panel-flat:rgba(14,28,54,.62);
 --line:rgba(92,166,255,.16);
 --line-strong:rgba(92,166,255,.42);
 --text:#e8f0ff;
 --muted:#93a9cb;
 --cyan:#2ee6d6;
 --blue:#3b82f6;
 --violet:#7c5cff;
 --radius:14px;
 --radius-sm:10px;
 --shadow:0 14px 34px rgba(2,8,22,.5);
 --shadow-hover:0 22px 48px rgba(2,8,22,.68);
 --gap:24px;
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
 margin:0;
 background:var(--bg);
 color:var(--text);
 font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
 font-size:16px;
 line-height:1.75;
 -webkit-font-smoothing:antialiased;
 overflow-x:hidden;
}
img{display:block;max-width:100%;height:auto}
a{color:inherit;text-decoration:none}
button,input,select{font:inherit;color:inherit}
button{border:0;background:none;cursor:pointer}
p{margin:0}
h1,h2,h3,h4{margin:0;font-weight:800;letter-spacing:.2px}
ul{margin:0;padding:0;list-style:none}
a:focus-visible,button:focus-visible,input:focus-visible,summary:focus-visible{
 outline:2px solid var(--cyan);outline-offset:3px;border-radius:6px;
}
.container{width:min(1180px,calc(100% - 48px));margin-inline:auto}

/* ============ HEADER / NAV ============ */
.site-header{
 position:sticky;top:0;z-index:80;
 background:rgba(5,10,23,.76);
 backdrop-filter:blur(16px);
 -webkit-backdrop-filter:blur(16px);
 border-bottom:1px solid var(--line);
 transition:box-shadow .25s ease,background .25s ease;
}
.site-header.is-stuck{box-shadow:0 12px 32px rgba(0,0,0,.5);background:rgba(5,10,23,.92)}
.nav-wrap{display:flex;align-items:center;gap:18px;min-height:64px;position:relative}
.logo{display:flex;align-items:center;gap:10px;flex-shrink:0}
.logo-mark{
 width:34px;height:34px;border-radius:10px;
 background:linear-gradient(140deg,var(--cyan),var(--blue));
 display:grid;place-items:center;color:#04101f;font-weight:900;font-size:15px;
 box-shadow:0 0 18px rgba(46,230,214,.4);
}
.logo-text{font-weight:800;font-size:16px;letter-spacing:.4px;white-space:nowrap}
.logo-text span{color:var(--cyan)}
.nav-links{display:flex;align-items:center;gap:6px;margin-left:auto}
.nav-link{
 padding:8px 14px;border-radius:var(--radius-sm);font-size:15px;color:var(--muted);
 transition:color .2s ease,background .2s ease;white-space:nowrap;
}
.nav-link:hover{color:var(--text);background:rgba(92,166,255,.12)}
.nav-link.active{
 color:#04101f;font-weight:700;
 background:linear-gradient(135deg,var(--cyan),#5aa9ff);
 box-shadow:0 0 20px rgba(46,230,214,.35);
}
.nav-loc{
 display:flex;align-items:center;gap:6px;flex-shrink:0;
 padding:7px 13px;border:1px solid var(--line);border-radius:999px;
 font-size:13px;color:var(--muted);transition:.2s;
}
.nav-loc svg{width:15px;height:15px;color:var(--cyan)}
.nav-loc:hover{border-color:var(--line-strong);color:var(--text)}
.nav-cta{
 display:inline-flex;align-items:center;justify-content:center;
 padding:9px 20px;border-radius:var(--radius-sm);font-size:14px;font-weight:700;
 color:#04101f;background:linear-gradient(135deg,var(--cyan),var(--blue));
 box-shadow:0 0 20px rgba(46,230,214,.42);
 transition:transform .2s ease,box-shadow .2s ease;flex-shrink:0;
}
.nav-cta:hover{transform:translateY(-2px);box-shadow:0 0 28px rgba(46,230,214,.62)}
.nav-toggle{
 display:none;width:40px;height:40px;border:1px solid var(--line);border-radius:10px;
 align-items:center;justify-content:center;color:var(--text);
}
.nav-toggle svg{width:20px;height:20px}

/* ============ BUTTONS ============ */
.btn{
 display:inline-flex;align-items:center;justify-content:center;gap:8px;
 padding:12px 26px;border-radius:var(--radius-sm);
 font-size:15px;font-weight:700;border:1px solid transparent;
 transition:transform .2s ease,box-shadow .2s ease,background .2s ease,border-color .2s ease;
}
.btn-primary{
 background:linear-gradient(135deg,var(--cyan),var(--blue));color:#04101f;
 box-shadow:0 0 24px rgba(46,230,214,.45);
}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 0 36px rgba(46,230,214,.68)}
.btn-primary:active{transform:translateY(0);box-shadow:0 0 18px rgba(46,230,214,.5)}
.btn-ghost{
 border-color:var(--line-strong);color:var(--text);
 background:rgba(46,230,214,.06);
}
.btn-ghost:hover{background:rgba(46,230,214,.15);transform:translateY(-2px)}
.btn-sm{padding:8px 18px;font-size:14px}

/* ============ SECTION ============ */
.section{padding:76px 0;position:relative}
.section--alt{background:linear-gradient(180deg,rgba(8,18,38,.7),rgba(5,10,23,0));border-block:1px solid var(--line)}
.section--deep{background:radial-gradient(900px 420px at 78% 0%,rgba(59,130,246,.16),transparent 64%),rgba(6,13,28,.85);border-block:1px solid var(--line)}
.section-head{max-width:780px;margin-bottom:42px}
.eyebrow{
 display:inline-flex;align-items:center;gap:8px;
 font-size:13px;letter-spacing:1.6px;color:var(--cyan);margin-bottom:12px;font-weight:600;
}
.eyebrow::before{content:"";width:22px;height:2px;border-radius:2px;background:linear-gradient(90deg,var(--cyan),transparent)}
.section-head h2{font-size:clamp(23px,2.6vw,32px);line-height:1.35}
.section-head p{margin-top:14px;color:var(--muted);font-size:15px;line-height:1.85}
.tag{
 display:inline-flex;align-items:center;gap:6px;
 padding:6px 14px;border-radius:999px;font-size:13px;color:#b8cbe8;
 border:1px solid var(--line);background:rgba(12,26,50,.6);
}
.tag::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--cyan);box-shadow:0 0 8px var(--cyan)}

/* ============ PAGE HERO ============ */
.page-hero{position:relative;overflow:hidden;padding:38px 0 74px;border-bottom:1px solid var(--line);background:linear-gradient(150deg,#08172f 0%,#050d1d 58%,#07152c 100%)}
.page-hero-bg{position:absolute;inset:0;z-index:0}
.page-hero-bg img{width:100%;height:100%;object-fit:cover;opacity:.2}
.page-hero-bg::after{
 content:"";position:absolute;inset:0;
 background:
 radial-gradient(720px 380px at 12% 0%,rgba(46,230,214,.2),transparent 62%),
 linear-gradient(180deg,rgba(5,10,23,.5),rgba(5,10,23,.95));
}
.crumbs{position:relative;z-index:1;display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--muted);margin-bottom:26px}
.crumbs a:hover{color:var(--cyan)}
.crumbs .sep{color:rgba(147,169,203,.5)}
.crumbs .now{color:var(--text);font-weight:600}
.hero-grid{position:relative;z-index:1;display:grid;grid-template-columns:minmax(0,1.12fr) minmax(0,.88fr);gap:48px;align-items:center}
.hero-badge{
 display:inline-flex;align-items:center;gap:8px;
 padding:6px 14px;border-radius:999px;font-size:13px;letter-spacing:.6px;
 color:var(--cyan);border:1px solid rgba(46,230,214,.34);
 background:rgba(46,230,214,.08);margin-bottom:18px;
}
.page-hero h1{
 font-size:clamp(27px,3.6vw,41px);
 line-height:1.3;letter-spacing:.4px;
 text-shadow:0 6px 30px rgba(0,0,0,.5);
}
.page-hero h1 em{font-style:normal;color:var(--cyan)}
.hero-lead{margin-top:18px;max-width:640px;font-size:15.5px;line-height:1.9;color:#c3d4ee}
.hero-actions{margin-top:26px;display:flex;flex-wrap:wrap;gap:14px}
.hero-tags{margin-top:26px;display:flex;flex-wrap:wrap;gap:10px}

.sea-panel{
 background:var(--panel);
 border:1px solid var(--line);
 border-radius:var(--radius);
 padding:22px 22px 18px;
 box-shadow:var(--shadow);
 backdrop-filter:blur(14px);
 -webkit-backdrop-filter:blur(14px);
}
.sea-panel-head{display:flex;align-items:center;justify-content:space-between;gap:12px;padding-bottom:14px;border-bottom:1px solid var(--line)}
.sea-panel-head h2{font-size:15px;letter-spacing:.4px;color:#dbe8ff;display:flex;align-items:center;gap:8px}
.sea-panel-head h2 svg{width:17px;height:17px;color:var(--cyan)}
.sea-panel-head span{font-size:12px;color:var(--muted);border:1px solid var(--line);border-radius:999px;padding:3px 10px}
.sea-row{display:flex;align-items:flex-start;gap:12px;padding:14px 0;border-bottom:1px dashed rgba(92,166,255,.14)}
.sea-row:last-of-type{border-bottom:0}
.sea-dot{width:8px;height:8px;border-radius:50%;margin-top:8px;flex-shrink:0;background:var(--blue);box-shadow:0 0 10px rgba(59,130,246,.8)}
.sea-row.is-main .sea-dot{background:var(--cyan);box-shadow:0 0 12px rgba(46,230,214,.9)}
.sea-row h3{font-size:14.5px;font-weight:700;color:#e8f0ff;display:flex;align-items:center;gap:8px;flex-wrap:wrap}
.sea-row h3 b{font-size:11px;font-weight:700;color:#04101f;background:linear-gradient(135deg,var(--cyan),#5aa9ff);padding:2px 8px;border-radius:999px;letter-spacing:.4px}
.sea-row p{margin-top:4px;font-size:13px;color:var(--muted);line-height:1.7}
.sea-panel-foot{margin-top:12px;padding-top:12px;border-top:1px solid var(--line);font-size:12.5px;color:var(--muted)}

/* ============ METRICS ============ */
.metrics-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:18px}
.metric{
 background:var(--panel-flat);
 border:1px solid var(--line);
 border-radius:var(--radius);
 padding:22px 20px;
 transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease;
}
.metric:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover);border-color:var(--line-strong)}
.metric .num{
 font-size:clamp(24px,2.6vw,32px);font-weight:900;letter-spacing:.5px;
 background:linear-gradient(135deg,var(--cyan),#7fb2ff);
 -webkit-background-clip:text;background-clip:text;color:transparent;
 line-height:1.2;
}
.metric .label{margin-top:8px;font-size:14px;font-weight:700;color:#dbe8ff}
.metric .desc{margin-top:6px;font-size:13px;color:var(--muted);line-height:1.7}

/* ============ MATRIX ============ */
.matrix-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:var(--gap)}
.matrix-card{
 background:var(--panel);
 border:1px solid var(--line);
 border-radius:var(--radius);
 padding:24px 22px;
 box-shadow:var(--shadow);
 transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
 display:flex;flex-direction:column;
}
.matrix-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover);border-color:var(--line-strong)}
.matrix-icon{
 width:42px;height:42px;border-radius:12px;display:grid;place-items:center;
 background:linear-gradient(150deg,rgba(46,230,214,.18),rgba(59,130,246,.14));
 border:1px solid rgba(46,230,214,.28);color:var(--cyan);margin-bottom:16px;
}
.matrix-icon svg{width:21px;height:21px}
.matrix-card h3{font-size:17px;line-height:1.45;color:#eaf2ff}
.matrix-card p{margin-top:10px;font-size:14px;color:var(--muted);line-height:1.85;flex:1}
.matrix-card .tag{margin-top:16px;align-self:flex-start}

/* ============ COMPARE ============ */
.compare-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:var(--gap)}
.compare-card{
 border-radius:var(--radius);padding:26px 24px;border:1px solid var(--line);
 background:var(--panel-flat);
 transition:transform .2s ease,border-color .2s ease,box-shadow .2s ease;
}
.compare-card:hover{transform:translateY(-3px);box-shadow:var(--shadow)}
.compare-card.is-warn{border-color:rgba(255,138,138,.26);background:linear-gradient(160deg,rgba(64,24,38,.55),rgba(18,14,30,.7))}
.compare-card.is-good{border-color:rgba(46,230,214,.3);background:linear-gradient(160deg,rgba(12,48,60,.6),rgba(9,19,38,.8))}
.compare-head{display:flex;align-items:center;gap:10px;margin-bottom:18px}
.compare-head .pill{
 font-size:12px;font-weight:700;letter-spacing:.6px;padding:4px 11px;border-radius:999px;
 color:#ffd8d8;background:rgba(255,120,120,.16);border:1px solid rgba(255,138,138,.35);
}
.compare-card.is-good .compare-head .pill{color:#b9fff7;background:rgba(46,230,214,.14);border-color:rgba(46,230,214,.4)}
.compare-head h3{font-size:17px}
.compare-list li{display:flex;gap:10px;align-items:flex-start;font-size:14.2px;color:#c8d8f0;line-height:1.8;padding:9px 0;border-bottom:1px dashed rgba(92,166,255,.13)}
.compare-list li:last-child{border-bottom:0}
.compare-list .mk{flex-shrink:0;width:18px;height:18px;border-radius:50%;display:grid;place-items:center;margin-top:4px;font-size:11px;font-weight:900}
.compare-card.is-warn .mk{background:rgba(255,120,120,.18);color:#ff9d9d}
.compare-card.is-good .mk{background:rgba(46,230,214,.18);color:var(--cyan)}
.compare-note{margin-top:22px;font-size:13.5px;color:var(--muted);display:flex;align-items:center;gap:10px}
.compare-note::before{content:"";width:26px;height:1px;background:linear-gradient(90deg,var(--cyan),transparent)}

/* ============ ROADMAP ============ */
.roadmap-layout{display:grid;grid-template-columns:minmax(0,.92fr) minmax(0,1.08fr);gap:46px;align-items:center}
.roadmap-figure{border-radius:var(--radius);overflow:hidden;border:1px solid var(--line);box-shadow:var(--shadow);position:relative}
.roadmap-figure img{width:100%;aspect-ratio:4/3;object-fit:cover;transition:transform .5s ease}
.roadmap-figure:hover img{transform:scale(1.04)}
.roadmap-figure figcaption{
 position:absolute;left:0;right:0;bottom:0;padding:16px 18px;
 font-size:12.8px;color:#d6e5ff;line-height:1.6;
 background:linear-gradient(180deg,rgba(5,10,23,0),rgba(5,10,23,.92));
}
.steps{position:relative;padding-left:30px}
.steps::before{content:"";position:absolute;left:9px;top:8px;bottom:8px;width:2px;background:linear-gradient(180deg,var(--cyan),rgba(92,166,255,.12))}
.step{position:relative;padding:0 0 26px}
.step:last-child{padding-bottom:0}
.step::before{
 content:"";position:absolute;left:-30px;top:6px;width:20px;height:20px;border-radius:50%;
 background:#081226;border:2px solid var(--cyan);box-shadow:0 0 14px rgba(46,230,214,.55);
}
.step h3{font-size:16.5px;color:#eaf2ff;display:flex;align-items:center;gap:10px;flex-wrap:wrap}
.step h3 span{font-size:11.5px;font-weight:700;color:var(--cyan);border:1px solid rgba(46,230,214,.34);border-radius:999px;padding:2px 9px;letter-spacing:.5px}
.step p{margin-top:7px;font-size:14px;color:var(--muted);line-height:1.85}

/* ============ NEWS ============ */
.news-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:var(--gap)}
.news-card{
 background:var(--panel-flat);border:1px solid var(--line);border-radius:var(--radius);
 padding:22px 22px 20px;display:flex;flex-direction:column;
 transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.news-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover);border-color:var(--line-strong)}
.news-meta{display:flex;align-items:center;gap:10px;flex-wrap:wrap;font-size:12.5px;color:var(--muted);margin-bottom:12px}
.news-cat{color:var(--cyan);border:1px solid rgba(46,230,214,.3);background:rgba(46,230,214,.08);border-radius:999px;padding:2px 10px;font-weight:600}
.news-card h3{font-size:16px;line-height:1.55}
.news-card h3 a{transition:color .2s ease}
.news-card h3 a:hover{color:var(--cyan)}
.news-card p{margin-top:10px;font-size:13.6px;color:var(--muted);line-height:1.8;flex:1}
.news-more{margin-top:16px;font-size:13.5px;font-weight:700;color:var(--cyan);display:inline-flex;align-items:center;gap:6px}
.news-more:hover{color:#8df7ee}
.news-more::after{content:"→";transition:transform .2s ease}
.news-more:hover::after{transform:translateX(3px)}
.empty-note{
 padding:34px 26px;border:1px dashed rgba(92,166,255,.3);border-radius:var(--radius);
 color:var(--muted);font-size:14px;text-align:center;background:rgba(10,22,44,.5);
}

/* ============ PLATFORM ============ */
.plat-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:18px}
.plat-card{
 background:rgba(12,26,50,.55);border:1px solid var(--line);border-radius:var(--radius);
 padding:22px 20px;transition:transform .2s ease,border-color .2s ease,box-shadow .2s ease;
}
.plat-card:hover{transform:translateY(-3px);border-color:var(--line-strong);box-shadow:var(--shadow)}
.plat-icon{width:38px;height:38px;border-radius:11px;display:grid;place-items:center;color:var(--cyan);background:rgba(46,230,214,.1);border:1px solid rgba(46,230,214,.24);margin-bottom:14px}
.plat-icon svg{width:19px;height:19px}
.plat-card h3{font-size:15.5px;color:#eaf2ff}
.plat-card p{margin-top:8px;font-size:13.4px;color:var(--muted);line-height:1.8}

/* ============ QUICK ANSWERS ============ */
.quick-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:var(--gap)}
.quick-card{
 background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);
 padding:24px 22px;box-shadow:var(--shadow);
 transition:transform .2s ease,border-color .2s ease,box-shadow .2s ease;
}
.quick-card:hover{transform:translateY(-4px);border-color:var(--line-strong);box-shadow:var(--shadow-hover)}
.quick-card .q{font-size:12.5px;letter-spacing:1.2px;color:var(--cyan);font-weight:700;margin-bottom:10px}
.quick-card h3{font-size:16.5px;line-height:1.5}
.quick-card p{margin-top:10px;font-size:14px;color:var(--muted);line-height:1.85}

/* ============ FAQ ============ */
.faq-wrap{max-width:920px}
.faq-item{
 border:1px solid var(--line);border-radius:var(--radius-sm);
 background:rgba(10,22,44,.55);margin-bottom:12px;overflow:hidden;
 transition:border-color .2s ease,background .2s ease;
}
.faq-item[open]{border-color:var(--line-strong);background:rgba(14,30,58,.7)}
.faq-item summary{
 display:flex;align-items:center;justify-content:space-between;gap:16px;
 padding:16px 20px;font-size:15.2px;font-weight:700;color:#e6efff;cursor:pointer;list-style:none;
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::after{
 content:"+";font-size:20px;font-weight:400;color:var(--cyan);line-height:1;
 transition:transform .2s ease;
}
.faq-item[open] summary::after{transform:rotate(45deg)}
.faq-item .faq-body{padding:0 20px 18px;font-size:14.2px;color:var(--muted);line-height:1.9}

/* ============ CTA / PLAN ============ */
.cta-band{
 position:relative;overflow:hidden;border-radius:18px;
 padding:46px 44px;border:1px solid rgba(46,230,214,.24);
 background:
 radial-gradient(680px 320px at 12% 0%,rgba(46,230,214,.16),transparent 62%),
 radial-gradient(560px 300px at 92% 100%,rgba(124,92,255,.18),transparent 60%),
 linear-gradient(150deg,rgba(16,36,68,.9),rgba(7,15,32,.94));
 box-shadow:var(--shadow);
}
.cta-band h2{font-size:clamp(22px,2.6vw,30px);line-height:1.35}
.cta-band > p{margin-top:14px;font-size:14.6px;color:#c3d4ee;line-height:1.9;max-width:720px}
.plan-switch{display:flex;flex-wrap:wrap;gap:12px;margin-top:24px}
.plan-btn{
 padding:10px 20px;border-radius:999px;font-size:14px;font-weight:700;
 border:1px solid var(--line-strong);color:#cfe1ff;background:rgba(12,26,50,.6);
 transition:transform .2s ease,background .2s ease,color .2s ease,border-color .2s ease,box-shadow .2s ease;
}
.plan-btn:hover{transform:translateY(-2px);background:rgba(46,230,214,.12);border-color:rgba(46,230,214,.55)}
.plan-btn.is-active{
 background:linear-gradient(135deg,var(--cyan),var(--blue));color:#04101f;border-color:transparent;
 box-shadow:0 0 24px rgba(46,230,214,.5);
}
.plan-out{
 margin-top:22px;padding:20px 22px;border-radius:var(--radius-sm);
 border:1px solid rgba(92,166,255,.24);background:rgba(6,14,30,.72);
 font-size:14.4px;color:#d2e2fb;line-height:1.9;min-height:96px;
}
.plan-out strong{color:var(--cyan)}

/* ============ FOOTER ============ */
.site-footer{
 border-top:1px solid var(--line);
 background:linear-gradient(180deg,rgba(6,13,28,.9),#03070f);
 padding:56px 0 26px;margin-top:0;
}
.footer-grid{display:grid;grid-template-columns:minmax(0,1.5fr) repeat(2,minmax(0,.75fr));gap:40px}
.footer-brand .logo{margin-bottom:16px}
.footer-brand p{font-size:13.8px;color:var(--muted);line-height:1.9;max-width:440px}
.footer-title{font-size:14px;color:#dbe8ff;letter-spacing:.6px;margin-bottom:14px}
.footer-links{display:flex;flex-direction:column;gap:10px}
.footer-links a{font-size:13.8px;color:var(--muted);transition:color .2s ease,transform .2s ease}
.footer-links a:hover{color:var(--cyan);transform:translateX(2px)}
.footer-bottom{
 margin-top:38px;padding-top:20px;border-top:1px solid var(--line);
 display:flex;flex-wrap:wrap;justify-content:space-between;gap:10px;
 font-size:12.8px;color:rgba(147,169,203,.75);
}

/* ============ RESPONSIVE ============ */
@media (max-width:1080px){
 .nav-loc{display:none}
 .hero-grid{grid-template-columns:1fr;gap:34px}
 .metrics-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
 .matrix-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
 .news-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
 .plat-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
 .quick-grid{grid-template-columns:1fr}
 .roadmap-layout{grid-template-columns:1fr;gap:32px}
}
@media (max-width:900px){
 .nav-toggle{display:inline-flex;margin-left:auto}
 .nav-links{
  position:absolute;top:100%;left:0;right:0;
  flex-direction:column;align-items:stretch;gap:4px;
  padding:12px 20px 18px;
  background:rgba(6,13,28,.98);
  border-bottom:1px solid var(--line);
  box-shadow:0 18px 40px rgba(0,0,0,.55);
  display:none;
 }
 .nav-links.is-open{display:flex}
 .nav-link{padding:12px 14px;font-size:15px}
 .nav-cta{padding:8px 16px;font-size:13px}
 .section{padding:60px 0}
 .page-hero{padding:30px 0 58px}
 .cta-band{padding:34px 24px}
}
@media (max-width:768px){
 .container{width:calc(100% - 32px)}
 .metrics-grid{grid-template-columns:1fr 1fr}
 .matrix-grid{grid-template-columns:1fr}
 .compare-grid{grid-template-columns:1fr}
 .news-grid{grid-template-columns:1fr}
 .plat-grid{grid-template-columns:1fr}
 .footer-grid{grid-template-columns:1fr;gap:30px}
 .section-head{margin-bottom:30px}
 .hero-actions .btn{flex:1 1 140px}
}
@media (max-width:520px){
 .nav-cta{display:none}
 .metrics-grid{grid-template-columns:1fr}
 .hero-tags .tag{font-size:12px;padding:5px 11px}
 .page-hero h1{font-size:26px}
 .cta-band{padding:28px 18px;border-radius:14px}
 .plan-btn{flex:1 1 100%;text-align:center}
 .footer-bottom{flex-direction:column;align-items:flex-start}
}

/* roulang page: category2 */
:root{
  --bg:#050a17;
  --bg-soft:#081226;
  --panel:linear-gradient(160deg,rgba(28,52,94,.72),rgba(9,19,38,.78));
  --panel-flat:rgba(14,28,54,.62);
  --line:rgba(92,166,255,.16);
  --line-strong:rgba(92,166,255,.42);
  --text:#e8f0ff;
  --muted:#93a9cb;
  --cyan:#2ee6d6;
  --blue:#3b82f6;
  --violet:#7c5cff;
  --radius:14px;
  --radius-sm:10px;
  --shadow:0 14px 34px rgba(2,8,22,.5);
  --shadow-hover:0 22px 48px rgba(2,8,22,.68);
  --gap:24px;
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:16px;
  line-height:1.75;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{display:block;max-width:100%;height:auto}
a{color:inherit;text-decoration:none}
button,input,select,textarea{font:inherit;color:inherit}
button{border:0;background:none;cursor:pointer}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4,p{margin:0}
a:focus-visible,button:focus-visible,input:focus-visible,select:focus-visible,textarea:focus-visible,summary:focus-visible{
  outline:2px solid var(--cyan);outline-offset:3px;border-radius:6px;
}
.container{width:min(1180px,calc(100% - 48px));margin-inline:auto}

/* ============ HEADER / NAV ============ */
.site-header{
  position:sticky;top:0;z-index:80;
  background:rgba(5,10,23,.76);
  backdrop-filter:blur(16px);
  -webkit-backdrop-filter:blur(16px);
  border-bottom:1px solid var(--line);
  transition:box-shadow .25s ease,background .25s ease;
}
.site-header.is-stuck{box-shadow:0 12px 32px rgba(0,0,0,.5);background:rgba(5,10,23,.92)}
.nav-wrap{display:flex;align-items:center;gap:18px;min-height:64px;position:relative}
.logo{display:flex;align-items:center;gap:10px;flex-shrink:0}
.logo-mark{
  width:34px;height:34px;border-radius:10px;
  background:linear-gradient(140deg,var(--cyan),var(--blue));
  display:grid;place-items:center;color:#04101f;font-weight:900;font-size:15px;
  box-shadow:0 0 18px rgba(46,230,214,.4);
}
.logo-text{font-weight:800;font-size:16px;letter-spacing:.4px;white-space:nowrap}
.logo-text span{color:var(--cyan)}
.nav-links{display:flex;align-items:center;gap:6px;margin-left:auto}
.nav-link{
  padding:8px 14px;border-radius:var(--radius-sm);font-size:15px;color:var(--muted);
  transition:color .2s ease,background .2s ease;white-space:nowrap;
}
.nav-link:hover{color:var(--text);background:rgba(92,166,255,.12)}
.nav-link.active{
  color:#04101f;font-weight:700;
  background:linear-gradient(135deg,var(--cyan),#5aa9ff);
  box-shadow:0 0 20px rgba(46,230,214,.35);
}
.nav-loc{
  display:flex;align-items:center;gap:6px;flex-shrink:0;
  padding:7px 13px;border:1px solid var(--line);border-radius:999px;
  font-size:13px;color:var(--muted);transition:.2s;
}
.nav-loc svg{width:15px;height:15px;color:var(--cyan)}
.nav-loc:hover{border-color:var(--line-strong);color:var(--text)}
.nav-cta{
  display:inline-flex;align-items:center;justify-content:center;
  padding:9px 20px;border-radius:var(--radius-sm);font-size:14px;font-weight:700;
  color:#04101f;background:linear-gradient(135deg,var(--cyan),var(--blue));
  box-shadow:0 0 20px rgba(46,230,214,.42);
  transition:transform .2s ease,box-shadow .2s ease;flex-shrink:0;
}
.nav-cta:hover{transform:translateY(-2px);box-shadow:0 0 28px rgba(46,230,214,.62)}
.nav-toggle{
  display:none;width:40px;height:40px;border:1px solid var(--line);border-radius:10px;
  align-items:center;justify-content:center;color:var(--text);
}
.nav-toggle svg{width:20px;height:20px}

/* ============ HERO ============ */
.hero{
  position:relative;overflow:hidden;
  padding:64px 0 72px;
  background:linear-gradient(120deg,#0b1c3a 0%,#071228 58%,#0a1e3d 100%);
  border-bottom:1px solid var(--line);
}
.hero-bg{position:absolute;inset:0;z-index:0}
.hero-bg img{width:100%;height:100%;object-fit:cover;opacity:.26}
.hero-bg::after{
  content:"";position:absolute;inset:0;
  background:
    radial-gradient(760px 420px at 12% 6%,rgba(46,230,214,.2),transparent 62%),
    radial-gradient(680px 380px at 88% 90%,rgba(124,92,255,.18),transparent 60%),
    linear-gradient(180deg,rgba(5,10,23,.5),rgba(5,10,23,.94));
}
.hero-grid{
  position:relative;z-index:1;
  display:grid;grid-template-columns:1.12fr .88fr;gap:48px;align-items:start;
}
.hero-badge{
  display:inline-flex;align-items:center;gap:8px;
  padding:6px 14px;border-radius:999px;font-size:13px;letter-spacing:.6px;
  color:var(--cyan);border:1px solid rgba(46,230,214,.34);
  background:rgba(46,230,214,.08);margin-bottom:20px;
}
.hero h1{
  font-size:clamp(28px,3.9vw,42px);
  line-height:1.3;font-weight:800;letter-spacing:.5px;
  text-shadow:0 6px 30px rgba(0,0,0,.5);
}
.hero h1 em{font-style:normal;color:var(--cyan)}
.hero-lead{margin-top:20px;max-width:660px;font-size:16px;line-height:1.85;color:#c3d4ee}
.hero-actions{margin-top:26px;display:flex;flex-wrap:wrap;gap:14px}
.hero-tags{margin-top:28px;display:flex;flex-wrap:wrap;gap:10px}
.tag{
  display:inline-flex;align-items:center;gap:6px;
  padding:6px 14px;border-radius:999px;font-size:13px;color:#b8cbe8;
  border:1px solid var(--line);background:rgba(12,26,50,.6);
}
.tag::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--cyan);box-shadow:0 0 8px var(--cyan)}

/* 参数面板 */
.param-panel{
  border:1px solid var(--line-strong);border-radius:var(--radius);
  background:var(--panel);
  box-shadow:var(--shadow);
  padding:24px 24px 22px;
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
}
.param-panel h2{font-size:15px;letter-spacing:1px;color:#cfe0f8;font-weight:700;margin-bottom:16px}
.param-row{display:flex;align-items:center;justify-content:space-between;gap:12px;padding:10px 0;border-bottom:1px dashed rgba(92,166,255,.18)}
.param-row:last-of-type{border-bottom:0}
.param-key{font-size:14px;color:var(--muted)}
.param-val{font-size:15px;font-weight:700;color:var(--text)}
.param-val b{color:var(--cyan)}
.bar{height:8px;border-radius:999px;background:rgba(92,166,255,.14);overflow:hidden;margin-top:14px}
.bar span{display:block;height:100%;border-radius:999px;background:linear-gradient(90deg,var(--cyan),var(--blue));box-shadow:0 0 16px rgba(46,230,214,.6)}
.bar-note{margin-top:10px;font-size:13px;color:var(--muted)}

/* ============ BUTTONS ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:12px 26px;border-radius:var(--radius-sm);
  font-size:15px;font-weight:700;border:1px solid transparent;
  transition:transform .2s ease,box-shadow .2s ease,background .2s ease,border-color .2s ease;
}
.btn-primary{
  background:linear-gradient(135deg,var(--cyan),var(--blue));color:#04101f;
  box-shadow:0 0 24px rgba(46,230,214,.45);
}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 0 36px rgba(46,230,214,.68)}
.btn-primary:active{transform:translateY(0);box-shadow:0 0 18px rgba(46,230,214,.5)}
.btn-ghost{border-color:var(--line-strong);color:var(--text);background:rgba(46,230,214,.06)}
.btn-ghost:hover{background:rgba(46,230,214,.15);transform:translateY(-2px)}
.btn-sm{padding:8px 18px;font-size:14px}

/* ============ SECTION ============ */
.section{padding:72px 0;position:relative}
.section--alt{background:linear-gradient(180deg,rgba(8,18,38,.72),rgba(5,10,23,0));border-block:1px solid var(--line)}
.section--deep{
  background:
    radial-gradient(900px 420px at 78% 0%,rgba(59,130,246,.16),transparent 64%),
    radial-gradient(700px 360px at 6% 100%,rgba(46,230,214,.1),transparent 60%),
    rgba(6,13,28,.85);
  border-block:1px solid var(--line);
}
.section-head{max-width:780px;margin-bottom:40px}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;letter-spacing:1.6px;color:var(--cyan);margin-bottom:12px;font-weight:600;
}
.eyebrow::before{content:"";width:22px;height:2px;border-radius:2px;background:linear-gradient(90deg,var(--cyan),transparent)}
.section-head h2{font-size:clamp(22px,2.5vw,30px);line-height:1.35;font-weight:800}
.section-head p{margin-top:14px;color:var(--muted);font-size:15px;line-height:1.8}

/* ============ 指标看板 ============ */
.metric-strip{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}
.metric-card{
  border:1px solid var(--line);border-radius:var(--radius);
  background:var(--panel-flat);
  padding:22px 20px;
  transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease,background .2s ease;
}
.metric-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover);border-color:var(--line-strong);background:var(--panel)}
.metric-num{font-size:clamp(24px,2.6vw,32px);font-weight:800;color:var(--cyan);letter-spacing:.5px;line-height:1.2}
.metric-num small{font-size:14px;color:#b8cbe8;font-weight:600;margin-left:4px}
.metric-label{margin-top:8px;font-size:14px;color:var(--muted)}

/* ============ 服务矩阵 ============ */
.matrix-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:22px}
.matrix-card{
  display:flex;gap:18px;
  border:1px solid var(--line);border-radius:var(--radius);
  background:var(--panel-flat);
  padding:24px;
  transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease,background .2s ease;
}
.matrix-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover);border-color:var(--line-strong);background:var(--panel)}
.card-icon{
  flex-shrink:0;width:44px;height:44px;border-radius:12px;
  display:grid;place-items:center;
  background:rgba(46,230,214,.1);border:1px solid rgba(46,230,214,.3);
  color:var(--cyan);
}
.card-icon svg{width:22px;height:22px}
.matrix-card h3{font-size:17px;font-weight:700;margin-bottom:8px}
.matrix-card p{font-size:14.5px;color:var(--muted);line-height:1.8}
.chip-row{margin-top:14px;display:flex;flex-wrap:wrap;gap:8px}
.chip{
  font-size:12.5px;padding:4px 11px;border-radius:999px;
  color:#a9c1e2;background:rgba(92,166,255,.1);border:1px solid var(--line);
}

/* ============ 对比 ============ */
.compare{display:grid;gap:12px}
.compare-row{
  display:grid;grid-template-columns:1.15fr 1fr 1fr;gap:16px;align-items:center;
  padding:16px 22px;border:1px solid var(--line);border-radius:var(--radius-sm);
  background:var(--panel-flat);font-size:14.5px;
  transition:border-color .2s ease,background .2s ease,transform .2s ease;
}
.compare-row:hover{border-color:var(--line-strong);background:var(--panel);transform:translateY(-2px)}
.compare-row.head{
  background:linear-gradient(120deg,rgba(46,230,214,.12),rgba(59,130,246,.1));
  border-color:rgba(46,230,214,.3);font-weight:700;color:#dbeaff;font-size:14px;letter-spacing:.5px;
}
.compare-key{color:#cfe0f8;font-weight:600}
.compare-cell{color:var(--muted)}
.compare-cell.good{color:var(--cyan);font-weight:700}

/* ============ 里程碑 ============ */
.timeline{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;position:relative}
.step{
  position:relative;
  border:1px solid var(--line);border-radius:var(--radius);
  background:var(--panel-flat);padding:24px 20px;
  transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.step:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover);border-color:var(--line-strong)}
.step-num{
  width:34px;height:34px;border-radius:10px;display:grid;place-items:center;
  font-weight:800;font-size:14px;color:#04101f;
  background:linear-gradient(135deg,var(--cyan),var(--blue));
  box-shadow:0 0 16px rgba(46,230,214,.4);margin-bottom:14px;
}
.step h3{font-size:16px;font-weight:700;margin-bottom:8px}
.step p{font-size:14px;color:var(--muted);line-height:1.8}

/* ============ 资讯列表 ============ */
.news-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.news-card{
  border:1px solid var(--line);border-radius:var(--radius);
  background:var(--panel-flat);overflow:hidden;
  transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease,background .2s ease;
}
.news-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover);border-color:var(--line-strong);background:var(--panel)}
.news-link{display:block;padding:22px}
.news-card h3{font-size:16px;font-weight:700;line-height:1.55;margin-bottom:10px;transition:color .2s ease}
.news-card:hover h3{color:var(--cyan)}
.news-card p{font-size:14px;color:var(--muted);line-height:1.75;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.news-meta{margin-top:16px;display:flex;align-items:center;gap:12px;font-size:12.5px;color:#7f96b8}
.news-meta span{padding:2px 10px;border-radius:999px;background:rgba(46,230,214,.1);color:var(--cyan);border:1px solid rgba(46,230,214,.24)}
.empty-note{
  padding:26px;border:1px dashed var(--line-strong);border-radius:var(--radius);
  color:var(--muted);font-size:14.5px;text-align:center;background:var(--panel-flat);
}

/* ============ 保障 ============ */
.guard-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.guard-card{
  border:1px solid var(--line);border-radius:var(--radius);
  background:var(--panel-flat);padding:24px;
  transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.guard-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover);border-color:var(--line-strong)}
.guard-card h3{font-size:16.5px;font-weight:700;margin:14px 0 8px}
.guard-card p{font-size:14.5px;color:var(--muted);line-height:1.8}

/* ============ 快速解答条 ============ */
.quick-list{display:grid;gap:14px}
.quick-item{
  display:flex;gap:16px;align-items:flex-start;
  padding:18px 22px;border:1px solid var(--line);border-radius:var(--radius-sm);
  background:var(--panel-flat);transition:border-color .2s ease,background .2s ease;
}
.quick-item:hover{border-color:var(--line-strong);background:var(--panel)}
.quick-dot{
  flex-shrink:0;width:10px;height:10px;border-radius:50%;margin-top:9px;
  background:var(--cyan);box-shadow:0 0 12px var(--cyan);
}
.quick-item strong{color:#dbeaff}
.quick-item p{font-size:14.5px;color:var(--muted);line-height:1.8}

/* ============ FAQ ============ */
.faq-list{display:grid;gap:12px;max-width:900px}
.faq-item{
  border:1px solid var(--line);border-radius:var(--radius);
  background:var(--panel-flat);padding:0 22px;
  transition:border-color .2s ease,background .2s ease;
}
.faq-item[open]{border-color:var(--line-strong);background:var(--panel)}
.faq-item summary{
  list-style:none;cursor:pointer;padding:17px 0;font-weight:700;font-size:15.5px;
  display:flex;justify-content:space-between;align-items:center;gap:16px;
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::after{content:"+";color:var(--cyan);font-size:20px;line-height:1;font-weight:700}
.faq-item[open] summary::after{content:"−"}
.faq-body{padding:0 0 18px;font-size:14.5px;color:var(--muted);line-height:1.85}

/* ============ 转化区 ============ */
.consult{
  display:grid;grid-template-columns:1fr 1fr;gap:44px;align-items:center;
  border:1px solid var(--line-strong);border-radius:18px;
  background:var(--panel);
  padding:42px;
  box-shadow:var(--shadow);
}
.consult h2{font-size:clamp(22px,2.4vw,28px);line-height:1.4;font-weight:800}
.consult p{margin-top:14px;color:var(--muted);font-size:15px;line-height:1.85}
.consult-points{margin-top:20px;display:grid;gap:10px}
.consult-points li{display:flex;gap:10px;align-items:flex-start;font-size:14.5px;color:#c3d4ee}
.consult-points li::before{content:"";flex-shrink:0;width:8px;height:8px;border-radius:50%;margin-top:9px;background:linear-gradient(135deg,var(--cyan),var(--blue));box-shadow:0 0 10px rgba(46,230,214,.8)}
.consult-form{display:grid;gap:14px}
.field{display:grid;gap:7px}
.field label{font-size:13.5px;color:#b8cbe8;font-weight:600}
.field input,.field select,.field textarea{
  width:100%;padding:11px 14px;border-radius:var(--radius-sm);
  border:1px solid var(--line);background:rgba(6,14,30,.75);
  font-size:14.5px;transition:border-color .2s ease,box-shadow .2s ease;
}
.field input::placeholder,.field textarea::placeholder{color:#6c81a3}
.field input:focus,.field select:focus,.field textarea:focus{
  border-color:var(--line-strong);box-shadow:0 0 0 3px rgba(46,230,214,.14);outline:none;
}
.field textarea{resize:vertical;min-height:92px}
.form-note{font-size:12.5px;color:#7f96b8}

/* ============ FOOTER ============ */
.site-footer{
  margin-top:0;padding:56px 0 28px;
  background:linear-gradient(180deg,rgba(6,13,28,.6),rgba(4,8,18,.95));
  border-top:1px solid var(--line);
}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr;gap:40px;padding-bottom:36px}
.footer-brand p{margin-top:16px;font-size:14px;color:var(--muted);line-height:1.85;max-width:420px}
.footer-title{font-size:14px;font-weight:700;letter-spacing:1px;color:#cfe0f8;margin-bottom:16px}
.footer-links{display:grid;gap:10px}
.footer-links a{font-size:14px;color:var(--muted);transition:color .2s ease}
.footer-links a:hover{color:var(--cyan)}
.footer-bottom{
  display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;align-items:center;
  padding-top:22px;border-top:1px solid var(--line);
  font-size:13px;color:#7f96b8;
}

/* ============ 响应式 ============ */
@media (max-width:1024px){
  .hero-grid{grid-template-columns:1fr;gap:34px}
  .metric-strip{grid-template-columns:repeat(2,1fr)}
  .timeline{grid-template-columns:repeat(2,1fr)}
  .news-grid{grid-template-columns:repeat(2,1fr)}
  .guard-grid{grid-template-columns:repeat(2,1fr)}
  .consult{grid-template-columns:1fr;padding:32px;gap:28px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
}
@media (max-width:980px){
  .nav-toggle{display:inline-flex;margin-left:auto}
  .nav-loc{display:none}
  .nav-links{
    position:absolute;top:100%;left:0;right:0;
    display:none;flex-direction:column;align-items:stretch;gap:4px;
    padding:14px 24px 20px;margin-left:0;
    background:rgba(5,10,23,.98);
    border-bottom:1px solid var(--line);
    box-shadow:0 20px 40px rgba(0,0,0,.55);
  }
  .nav-links.is-open{display:flex}
  .nav-link{padding:12px 14px;font-size:15px}
  .nav-cta{margin-left:0}
}
@media (max-width:768px){
  .container{width:calc(100% - 32px)}
  .section{padding:54px 0}
  .hero{padding:44px 0 52px}
  .matrix-grid{grid-template-columns:1fr}
  .news-grid{grid-template-columns:1fr}
  .guard-grid{grid-template-columns:1fr}
  .timeline{grid-template-columns:1fr}
  .compare-row{grid-template-columns:1fr;gap:8px;padding:16px 18px}
  .compare-row.head{display:none}
  .compare-cell::before{content:attr(data-label) "：";color:#7f96b8;font-weight:600}
  .footer-grid{grid-template-columns:1fr;gap:28px}
  .consult{padding:26px}
  .hero-actions .btn{width:100%}
}
@media (max-width:520px){
  body{font-size:15px}
  .logo-text{font-size:15px}
  .metric-strip{grid-template-columns:1fr}
  .hero h1{font-size:26px}
  .hero-lead{font-size:15px}
  .section-head h2{font-size:21px}
  .matrix-card{flex-direction:column;gap:14px;padding:20px}
  .nav-cta{padding:8px 14px;font-size:13px}
  .footer-bottom{flex-direction:column;align-items:flex-start}
}

/* roulang page: category3 */
:root{
 --bg:#050a17;
 --bg-soft:#081226;
 --panel:linear-gradient(160deg,rgba(28,52,94,.72),rgba(9,19,38,.78));
 --panel-flat:rgba(14,28,54,.62);
 --line:rgba(92,166,255,.16);
 --line-strong:rgba(92,166,255,.42);
 --text:#e8f0ff;
 --muted:#93a9cb;
 --cyan:#2ee6d6;
 --blue:#3b82f6;
 --violet:#7c5cff;
 --radius:14px;
 --radius-sm:10px;
 --shadow:0 14px 34px rgba(2,8,22,.5);
 --shadow-hover:0 22px 48px rgba(2,8,22,.68);
 --gap:24px;
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{
 margin:0;
 background:var(--bg);
 color:var(--text);
 font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
 font-size:16px;line-height:1.75;
 -webkit-font-smoothing:antialiased;
 overflow-x:hidden;
}
img{display:block;max-width:100%;height:auto}
a{color:inherit;text-decoration:none}
ul,ol{margin:0;padding:0;list-style:none}
p{margin:0}
h1,h2,h3,h4{margin:0;font-weight:800;line-height:1.35}
button,input,select{font:inherit;color:inherit}
button{border:0;background:none;cursor:pointer}
a:focus-visible,button:focus-visible,input:focus-visible,select:focus-visible,summary:focus-visible{
 outline:2px solid var(--cyan);outline-offset:3px;border-radius:6px;
}
.container{width:min(1180px,calc(100% - 48px));margin-inline:auto}

/* ============ HEADER / NAV ============ */
.site-header{
 position:sticky;top:0;z-index:80;
 background:rgba(5,10,23,.76);
 backdrop-filter:blur(16px);
 -webkit-backdrop-filter:blur(16px);
 border-bottom:1px solid var(--line);
 transition:box-shadow .25s ease,background .25s ease;
}
.site-header.is-stuck{box-shadow:0 12px 32px rgba(0,0,0,.5);background:rgba(5,10,23,.92)}
.nav-wrap{display:flex;align-items:center;gap:18px;min-height:64px}
.logo{display:flex;align-items:center;gap:10px;flex-shrink:0}
.logo-mark{
 width:34px;height:34px;border-radius:10px;
 background:linear-gradient(140deg,var(--cyan),var(--blue));
 display:grid;place-items:center;color:#04101f;font-weight:900;font-size:15px;
 box-shadow:0 0 18px rgba(46,230,214,.4);
}
.logo-text{font-weight:800;font-size:16px;letter-spacing:.4px;white-space:nowrap}
.logo-text span{color:var(--cyan)}
.nav-links{display:flex;align-items:center;gap:6px;margin-left:auto}
.nav-link{
 padding:8px 14px;border-radius:var(--radius-sm);font-size:15px;color:var(--muted);
 transition:color .2s ease,background .2s ease;white-space:nowrap;
}
.nav-link:hover{color:var(--text);background:rgba(92,166,255,.12)}
.nav-link.active{
 color:#04101f;font-weight:700;
 background:linear-gradient(135deg,var(--cyan),#5aa9ff);
 box-shadow:0 0 20px rgba(46,230,214,.35);
}
.nav-loc{
 display:flex;align-items:center;gap:6px;flex-shrink:0;
 padding:7px 13px;border:1px solid var(--line);border-radius:999px;
 font-size:13px;color:var(--muted);transition:.2s;
}
.nav-loc svg{width:15px;height:15px;color:var(--cyan)}
.nav-loc:hover{border-color:var(--line-strong);color:var(--text)}
.nav-cta{
 display:inline-flex;align-items:center;justify-content:center;
 padding:9px 20px;border-radius:var(--radius-sm);font-size:14px;font-weight:700;
 color:#04101f;background:linear-gradient(135deg,var(--cyan),var(--blue));
 box-shadow:0 0 20px rgba(46,230,214,.42);
 transition:transform .2s ease,box-shadow .2s ease;flex-shrink:0;
}
.nav-cta:hover{transform:translateY(-2px);box-shadow:0 0 28px rgba(46,230,214,.62)}
.nav-toggle{
 display:none;width:40px;height:40px;border:1px solid var(--line);border-radius:10px;
 align-items:center;justify-content:center;color:var(--text);
}
.nav-toggle svg{width:20px;height:20px}

/* ============ BUTTONS ============ */
.btn{
 display:inline-flex;align-items:center;justify-content:center;gap:8px;
 padding:12px 26px;border-radius:var(--radius-sm);
 font-size:15px;font-weight:700;border:1px solid transparent;
 transition:transform .2s ease,box-shadow .2s ease,background .2s ease,border-color .2s ease;
}
.btn-primary{
 background:linear-gradient(135deg,var(--cyan),var(--blue));color:#04101f;
 box-shadow:0 0 24px rgba(46,230,214,.45);
}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 0 36px rgba(46,230,214,.68)}
.btn-primary:active{transform:translateY(0);box-shadow:0 0 18px rgba(46,230,214,.5)}
.btn-ghost{
 border-color:var(--line-strong);color:var(--text);
 background:rgba(46,230,214,.06);
}
.btn-ghost:hover{background:rgba(46,230,214,.15);transform:translateY(-2px)}
.btn-sm{padding:8px 18px;font-size:14px}
.btn-block{width:100%}

/* ============ PAGE HERO ============ */
.page-hero{position:relative;overflow:hidden;padding:60px 0 70px;border-bottom:1px solid var(--line);
 background:linear-gradient(120deg,#0b1c3a 0%,#071228 58%,#0a1e3d 100%);}
.page-hero__bg{position:absolute;inset:0;z-index:0}
.page-hero__bg img{width:100%;height:100%;object-fit:cover;opacity:.22}
.page-hero__bg::after{
 content:"";position:absolute;inset:0;
 background:radial-gradient(720px 400px at 12% 0%,rgba(46,230,214,.2),transparent 62%),
            linear-gradient(180deg,rgba(5,10,23,.5),rgba(5,10,23,.95));
}
.hero-grid{position:relative;z-index:1;display:grid;grid-template-columns:1.12fr .88fr;gap:44px;align-items:start}
.hero-badge{
 display:inline-flex;align-items:center;gap:8px;
 padding:6px 14px;border-radius:999px;font-size:13px;letter-spacing:.6px;
 color:var(--cyan);border:1px solid rgba(46,230,214,.34);
 background:rgba(46,230,214,.08);margin-bottom:18px;
}
.hero-badge::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--cyan);box-shadow:0 0 8px var(--cyan)}
.page-hero h1{font-size:clamp(28px,3.6vw,42px);line-height:1.3;letter-spacing:.5px;text-shadow:0 6px 30px rgba(0,0,0,.5)}
.page-hero h1 em{font-style:normal;color:var(--cyan)}
.hero-sub{margin-top:14px;font-size:15px;color:var(--cyan);letter-spacing:.4px}
.hero-lead{margin-top:18px;max-width:640px;font-size:16px;line-height:1.85;color:#c3d4ee}
.hero-tags{margin-top:26px;display:flex;flex-wrap:wrap;gap:10px}
.tag{
 display:inline-flex;align-items:center;gap:6px;
 padding:6px 14px;border-radius:999px;font-size:13px;color:#b8cbe8;
 border:1px solid var(--line);background:rgba(12,26,50,.6);
}
.tag::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--cyan);box-shadow:0 0 8px var(--cyan)}

/* ============ LEAD CARD / FORM ============ */
.lead-card{
 background:var(--panel);border:1px solid var(--line-strong);border-radius:var(--radius);
 padding:26px;box-shadow:var(--shadow);backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);
}
.lead-card h2{font-size:19px;margin-bottom:8px}
.lead-card .lead-note{font-size:13px;color:var(--muted);margin-bottom:18px;line-height:1.7}
.field{display:grid;gap:7px;margin-bottom:14px}
.field label{font-size:13px;color:var(--muted);letter-spacing:.3px}
.field input,.field select{
 width:100%;padding:11px 14px;border-radius:10px;
 border:1px solid var(--line);background:rgba(6,13,28,.82);color:var(--text);
 transition:border-color .2s ease,box-shadow .2s ease,background .2s ease;
 appearance:none;-webkit-appearance:none;
}
.field select{
 background-image:linear-gradient(45deg,transparent 50%,#93a9cb 50%),linear-gradient(135deg,#93a9cb 50%,transparent 50%);
 background-position:calc(100% - 20px) 50%,calc(100% - 14px) 50%;
 background-size:6px 6px,6px 6px;background-repeat:no-repeat;
}
.field input:hover,.field select:hover{border-color:var(--line-strong)}
.field input:focus,.field select:focus{
 border-color:var(--line-strong);background:rgba(8,18,38,.95);
 box-shadow:0 0 0 3px rgba(46,230,214,.14);outline:none;
}
.form-note{font-size:12px;color:var(--muted);margin-top:12px;line-height:1.6}
.form-msg{
 display:none;margin-top:12px;padding:10px 14px;border-radius:10px;font-size:13px;
 color:#04101f;background:linear-gradient(135deg,rgba(46,230,214,.9),rgba(90,169,255,.9));font-weight:600;
}
.form-msg.is-on{display:block}

/* ============ SECTION ============ */
.section{padding:74px 0;position:relative}
.section--alt{background:linear-gradient(180deg,rgba(8,18,38,.72),rgba(5,10,23,0));border-block:1px solid var(--line)}
.section--deep{
 background:radial-gradient(900px 420px at 78% 0%,rgba(59,130,246,.16),transparent 64%),rgba(6,13,28,.85);
 border-block:1px solid var(--line);
}
.section-head{max-width:760px;margin-bottom:40px}
.eyebrow{
 display:inline-flex;align-items:center;gap:8px;
 font-size:13px;letter-spacing:1.6px;color:var(--cyan);margin-bottom:12px;font-weight:600;
}
.eyebrow::before{content:"";width:22px;height:2px;border-radius:2px;background:linear-gradient(90deg,var(--cyan),transparent)}
.section-head h2{font-size:clamp(23px,2.6vw,31px);letter-spacing:.4px}
.section-desc{margin-top:14px;font-size:15px;line-height:1.85;color:var(--muted)}

/* ============ GRID UTIL ============ */
.grid{display:grid;gap:var(--gap)}
.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))}

/* ============ CARD ============ */
.card{
 position:relative;background:var(--panel);border:1px solid var(--line);
 border-radius:var(--radius);padding:26px;box-shadow:var(--shadow);
 backdrop-filter:blur(10px);-webkit-backdrop-filter:blur(10px);
 transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.card:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover);border-color:var(--line-strong)}
.card h3{font-size:18px;margin-bottom:10px}
.card p{font-size:14px;line-height:1.8;color:var(--muted)}
.card-icon{
 width:44px;height:44px;border-radius:12px;display:grid;place-items:center;margin-bottom:16px;
 color:var(--cyan);border:1px solid rgba(46,230,214,.3);
 background:linear-gradient(150deg,rgba(46,230,214,.16),rgba(59,130,246,.08));
 box-shadow:0 0 18px rgba(46,230,214,.16);
}
.card-icon svg{width:21px;height:21px}
.card-tags{display:flex;flex-wrap:wrap;gap:8px;margin-top:18px}
.chip{
 padding:4px 11px;border-radius:999px;font-size:12px;color:#a9c2e2;
 border:1px solid var(--line);background:rgba(12,26,50,.6);
}

/* ============ STATS ============ */
.stats{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:18px}
.stat{
 padding:24px 22px;border-radius:var(--radius);
 border:1px solid var(--line);background:var(--panel-flat);
 box-shadow:var(--shadow);transition:transform .2s ease,border-color .2s ease,box-shadow .2s ease;
}
.stat:hover{transform:translateY(-3px);border-color:var(--line-strong);box-shadow:var(--shadow-hover)}
.stat-num{
 font-size:clamp(24px,2.7vw,32px);font-weight:900;letter-spacing:.5px;
 background:linear-gradient(120deg,var(--cyan),#7fb2ff);
 -webkit-background-clip:text;background-clip:text;color:transparent;
}
.stat-label{margin-top:6px;font-size:14px;color:var(--text);font-weight:600}
.stat-desc{margin-top:6px;font-size:13px;color:var(--muted);line-height:1.7}

/* ============ COMPARE ============ */
.compare{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:22px}
.compare-col{
 border-radius:var(--radius);padding:26px;border:1px solid var(--line);
 background:var(--panel-flat);box-shadow:var(--shadow);
 transition:transform .2s ease,border-color .2s ease,box-shadow .2s ease;
}
.compare-col:hover{transform:translateY(-3px);box-shadow:var(--shadow-hover)}
.compare-col--hi{
 border-color:rgba(46,230,214,.4);
 background:linear-gradient(160deg,rgba(46,230,214,.12),rgba(9,19,38,.82));
}
.compare-col h3{font-size:18px;margin-bottom:6px}
.compare-col .compare-sub{font-size:13px;color:var(--muted);margin-bottom:16px}
.compare-list li{
 display:flex;gap:10px;padding:12px 0;font-size:14px;color:#cbdcf3;
 border-top:1px dashed rgba(92,166,255,.18);
}
.compare-list li:first-child{border-top:0}
.dot{flex:0 0 auto;width:7px;height:7px;border-radius:50%;margin-top:8px;background:rgba(147,169,203,.75)}
.compare-col--hi .dot{background:var(--cyan);box-shadow:0 0 8px var(--cyan)}

/* ============ TIMELINE ============ */
.timeline{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:18px;position:relative}
.step{
 position:relative;padding:26px 22px 24px;border-radius:var(--radius);
 border:1px solid var(--line);background:var(--panel-flat);box-shadow:var(--shadow);
 transition:transform .2s ease,border-color .2s ease,box-shadow .2s ease;
}
.step:hover{transform:translateY(-3px);border-color:var(--line-strong);box-shadow:var(--shadow-hover)}
.step-num{
 display:inline-grid;place-items:center;width:34px;height:34px;border-radius:10px;
 font-weight:900;font-size:14px;color:#04101f;margin-bottom:14px;
 background:linear-gradient(135deg,var(--cyan),var(--blue));
 box-shadow:0 0 16px rgba(46,230,214,.35);
}
.step h3{font-size:16px;margin-bottom:8px}
.step p{font-size:13.5px;color:var(--muted);line-height:1.75}

/* ============ NEWS LIST ============ */
.news-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:22px}
.news-card{
 display:flex;flex-direction:column;overflow:hidden;border-radius:var(--radius);
 border:1px solid var(--line);background:var(--panel);box-shadow:var(--shadow);
 transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.news-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover);border-color:var(--line-strong)}
.news-thumb{display:block;aspect-ratio:16/10;overflow:hidden;background:rgba(8,18,38,.9)}
.news-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .35s ease}
.news-card:hover .news-thumb img{transform:scale(1.05)}
.news-body{padding:20px 22px 24px;display:flex;flex-direction:column;gap:10px;flex:1}
.news-meta{display:flex;align-items:center;gap:10px;font-size:12px;color:var(--muted);flex-wrap:wrap}
.news-cat{
 padding:3px 10px;border-radius:999px;color:var(--cyan);
 border:1px solid rgba(46,230,214,.32);background:rgba(46,230,214,.08);
}
.news-body h3{font-size:16px;line-height:1.55}
.news-body h3 a:hover{color:var(--cyan)}
.news-body p{font-size:13.5px;color:var(--muted);line-height:1.75}
.news-empty{
 padding:34px 26px;border-radius:var(--radius);border:1px dashed var(--line-strong);
 background:rgba(9,19,38,.6);color:var(--muted);font-size:14px;text-align:center;
}

/* ============ GUARD ============ */
.guard-card{
 padding:24px;border-radius:var(--radius);border:1px solid var(--line);
 background:rgba(10,22,44,.62);box-shadow:var(--shadow);
 transition:transform .2s ease,border-color .2s ease,box-shadow .2s ease;
}
.guard-card:hover{transform:translateY(-3px);border-color:var(--line-strong);box-shadow:var(--shadow-hover)}
.guard-card h3{font-size:16px;margin-bottom:8px;display:flex;align-items:center;gap:8px}
.guard-card h3 svg{width:17px;height:17px;color:var(--cyan);flex:0 0 auto}
.guard-card p{font-size:13.5px;color:var(--muted);line-height:1.75}

/* ============ QUICK ANSWER ============ */
.quick-card{
 padding:24px;border-radius:var(--radius);
 border:1px solid var(--line);
 background:linear-gradient(160deg,rgba(28,52,94,.6),rgba(9,19,38,.8));
 box-shadow:var(--shadow);transition:transform .2s ease,border-color .2s ease;
}
.quick-card:hover{transform:translateY(-3px);border-color:var(--line-strong)}
.quick-num{
 font-size:12px;letter-spacing:1.4px;color:var(--cyan);font-weight:700;margin-bottom:10px;display:block;
}
.quick-card h3{font-size:16px;margin-bottom:8px}
.quick-card p{font-size:13.5px;color:var(--muted);line-height:1.78}

/* ============ FAQ ============ */
.faq{display:grid;gap:12px;max-width:900px}
.faq details{
 border:1px solid var(--line);border-radius:var(--radius-sm);
 background:rgba(10,22,44,.6);padding:0 20px;
 transition:border-color .2s ease,background .2s ease;
}
.faq details:hover{border-color:var(--line-strong);background:rgba(12,26,50,.72)}
.faq details[open]{border-color:rgba(46,230,214,.36);background:rgba(12,28,54,.8)}
.faq summary{
 list-style:none;cursor:pointer;padding:16px 30px 16px 0;position:relative;
 font-size:15px;font-weight:700;color:var(--text);
}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{
 content:"";position:absolute;right:4px;top:50%;width:8px;height:8px;
 border-right:2px solid var(--cyan);border-bottom:2px solid var(--cyan);
 transform:translateY(-70%) rotate(45deg);transition:transform .2s ease;
}
.faq details[open] summary::after{transform:translateY(-30%) rotate(-135deg)}
.faq p{padding:0 0 18px;font-size:14px;color:var(--muted);line-height:1.85}

/* ============ CTA PANEL ============ */
.cta-panel{
 display:grid;grid-template-columns:1.05fr .95fr;gap:40px;align-items:center;
 padding:40px;border-radius:18px;border:1px solid var(--line-strong);
 background:radial-gradient(620px 320px at 8% 0%,rgba(46,230,214,.16),transparent 66%),
            linear-gradient(160deg,rgba(20,42,80,.86),rgba(7,15,32,.92));
 box-shadow:var(--shadow-hover);
}
.cta-panel h2{font-size:clamp(22px,2.5vw,29px)}
.cta-panel p{margin-top:14px;font-size:15px;color:var(--muted);line-height:1.85;max-width:520px}
.cta-actions{margin-top:24px;display:flex;flex-wrap:wrap;gap:14px}

/* ============ FOOTER ============ */
.site-footer{
 background:linear-gradient(180deg,#050a17,#03070f);
 border-top:1px solid var(--line);padding:56px 0 28px;margin-top:0;
}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr;gap:40px}
.footer-brand p{color:var(--muted);font-size:14px;line-height:1.85;margin-top:16px;max-width:430px}
.footer-title{font-size:15px;margin-bottom:16px;letter-spacing:.4px}
.footer-links{display:grid;gap:10px}
.footer-links a{color:var(--muted);font-size:14px;transition:color .2s ease,transform .2s ease;display:inline-block}
.footer-links a:hover{color:var(--cyan);transform:translateX(3px)}
.footer-bottom{
 display:flex;justify-content:space-between;gap:12px;flex-wrap:wrap;
 margin-top:40px;padding-top:22px;border-top:1px solid var(--line);
 font-size:13px;color:var(--muted);
}

/* ============ RESPONSIVE ============ */
@media (max-width:1080px){
 .nav-loc{display:none}
 .hero-grid{grid-template-columns:1fr;gap:32px}
 .stats{grid-template-columns:repeat(2,minmax(0,1fr))}
 .grid-4{grid-template-columns:repeat(2,minmax(0,1fr))}
 .grid-3{grid-template-columns:repeat(2,minmax(0,1fr))}
 .timeline{grid-template-columns:repeat(2,minmax(0,1fr))}
 .news-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
 .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
 .footer-brand{grid-column:1/-1}
 .cta-panel{grid-template-columns:1fr;gap:28px;padding:32px}
}
@media (max-width:860px){
 .nav-toggle{display:inline-flex;margin-left:auto}
 .nav-links{
  position:absolute;left:0;right:0;top:64px;
  flex-direction:column;align-items:stretch;gap:4px;
  padding:14px 24px 20px;margin:0;
  background:rgba(5,10,23,.98);
  border-bottom:1px solid var(--line);
  box-shadow:0 18px 36px rgba(0,0,0,.55);
  display:none;
 }
 .nav-links.is-open{display:flex}
 .nav-link{padding:12px 14px;min-height:44px;display:flex;align-items:center}
 .nav-cta{margin-left:0}
 .nav-wrap{flex-wrap:nowrap}
}
@media (max-width:768px){
 .container{width:min(1180px,calc(100% - 32px))}
 .page-hero{padding:44px 0 52px}
 .section{padding:54px 0}
 .hero-lead{font-size:15px}
 .stats{grid-template-columns:1fr}
 .grid-2,.grid-3,.grid-4,.compare,.news-grid,.timeline{grid-template-columns:1fr}
 .card,.stat,.step,.guard-card,.quick-card{padding:22px}
 .footer-grid{grid-template-columns:1fr}
 .footer-bottom{flex-direction:column;align-items:flex-start}
}
@media (max-width:520px){
 .container{width:calc(100% - 24px)}
 .logo-text{font-size:15px}
 .page-hero h1{font-size:26px}
 .btn{width:100%}
 .hero-actions .btn,.cta-actions .btn{width:100%}
 .lead-card,.cta-panel{padding:20px}
 .section-head{margin-bottom:28px}
 .faq summary{font-size:14px}
}