/* roulang page: index */
:root{
  --bg:#070a18;
  --bg-2:#0a0f24;
  --panel:#101736;
  --panel-2:#141c40;
  --ink:#e9eeff;
  --muted:#95a1c9;
  --gold:#ffb400;
  --gold-2:#ffd873;
  --cyan:#22d3ee;
  --violet:#6d5cff;
  --line:rgba(140,160,220,.16);
  --line-2:rgba(140,160,220,.28);
  --glass:rgba(255,255,255,.045);
  --glass-2:rgba(255,255,255,.075);
  --radius:18px;
  --radius-sm:12px;
  --shadow:0 22px 48px -26px rgba(0,0,0,.95);
  --glow:0 0 0 1px rgba(255,180,0,.4), 0 16px 38px -16px rgba(255,180,0,.65);
  --maxw:1180px;
  --step:clamp(56px,6.5vw,92px);
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Source Han Sans SC",system-ui,-apple-system,"Helvetica Neue",Arial,sans-serif;
  color:var(--ink);
  background:
    radial-gradient(1100px 560px at 10% -8%, rgba(109,92,255,.30), transparent 62%),
    radial-gradient(900px 480px at 92% -4%, rgba(34,211,238,.18), transparent 58%),
    radial-gradient(800px 600px at 50% 118%, rgba(255,180,0,.10), transparent 60%),
    var(--bg);
  font-size:16px;
  line-height:1.75;
  letter-spacing:.2px;
  min-height:100vh;
}
img{max-width:100%;display:block;height:auto;}
a{color:inherit;text-decoration:none;transition:color .2s ease,opacity .2s ease;}
a:hover{color:var(--gold-2);}
h1,h2,h3,h4{margin:0 0 .6em;line-height:1.32;font-weight:800;letter-spacing:.4px;color:#fff;}
p{margin:0 0 1em;}
ul{margin:0;padding:0;list-style:none;}
button{font-family:inherit;}
:focus-visible{outline:2px solid var(--cyan);outline-offset:3px;border-radius:6px;}
.grid-container{max-width:var(--maxw);margin-left:auto;margin-right:auto;padding-left:20px;padding-right:20px;}
.grid-container.full{max-width:100%;}
.section{padding:var(--step) 0;position:relative;}
.section--alt{background:linear-gradient(180deg,rgba(255,255,255,.03),rgba(255,255,255,0) 70%);border-top:1px solid var(--line);border-bottom:1px solid var(--line);}
.section-head{max-width:760px;margin-bottom:38px;}
.section-head.center{margin-left:auto;margin-right:auto;text-align:center;}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;font-weight:700;letter-spacing:2px;
  color:var(--cyan);text-transform:uppercase;
  padding:6px 12px;border-radius:999px;
  background:rgba(34,211,238,.10);border:1px solid rgba(34,211,238,.28);
  margin-bottom:16px;
}
.eyebrow::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--cyan);box-shadow:0 0 12px var(--cyan);}
.section-title{font-size:clamp(24px,3.1vw,36px);letter-spacing:.6px;}
.section-sub{color:var(--muted);font-size:15.5px;margin:0;}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:13px 26px;border-radius:999px;border:0;cursor:pointer;
  font-size:15px;font-weight:700;letter-spacing:.6px;
  transition:transform .2s ease,box-shadow .25s ease,background .25s ease,color .2s ease;
  white-space:nowrap;
}
.btn-gold{
  background:linear-gradient(135deg,var(--gold) 0%,var(--gold-2) 100%);
  color:#20160a;box-shadow:var(--glow);
}
.btn-gold:hover{transform:translateY(-2px);color:#1a1206;box-shadow:0 0 0 1px rgba(255,180,0,.6),0 22px 46px -16px rgba(255,180,0,.85);}
.btn-ghost{
  background:var(--glass);color:var(--ink);border:1px solid var(--line-2);
  backdrop-filter:blur(8px);
}
.btn-ghost:hover{background:var(--glass-2);color:#fff;transform:translateY(-2px);border-color:rgba(34,211,238,.5);}
.btn:active{transform:translateY(0) scale(.99);}
.tag{
  display:inline-flex;align-items:center;
  font-size:12.5px;font-weight:700;color:var(--gold-2);
  background:rgba(255,180,0,.10);border:1px solid rgba(255,180,0,.28);
  padding:4px 11px;border-radius:999px;letter-spacing:.5px;
}
.tag--cyan{color:#a9f0ff;background:rgba(34,211,238,.10);border-color:rgba(34,211,238,.3);}
.tag--violet{color:#cfc7ff;background:rgba(109,92,255,.14);border-color:rgba(109,92,255,.34);}

/* ===== header ===== */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(8,12,30,.82);
  backdrop-filter:blur(18px);
  border-bottom:1px solid var(--line);
  box-shadow:0 12px 34px -24px rgba(0,0,0,.95);
}
.brand-row{
  display:flex;align-items:center;justify-content:space-between;gap:18px;
  padding:16px 0 10px;
}
.brand{display:inline-flex;align-items:center;gap:12px;}
.brand-mark{
  width:44px;height:44px;border-radius:14px;
  display:grid;place-items:center;
  font-size:20px;font-weight:800;color:#1a1206;
  background:linear-gradient(135deg,var(--gold),var(--gold-2));
  box-shadow:0 10px 26px -12px rgba(255,180,0,.9);
  flex:0 0 auto;
}
.brand-text{display:flex;flex-direction:column;line-height:1.2;}
.brand-text strong{font-size:19px;letter-spacing:1.4px;color:#fff;}
.brand-text em{font-style:normal;font-size:12px;color:var(--muted);letter-spacing:1px;}
.brand-meta{
  font-size:12.5px;color:var(--muted);letter-spacing:.6px;
  padding:7px 14px;border-radius:999px;
  border:1px solid var(--line);background:var(--glass);
  white-space:nowrap;
}
.brand-meta b{color:var(--gold-2);font-weight:800;}
.nav-toggle{
  display:none;align-items:center;gap:8px;
  padding:10px 18px;border-radius:999px;cursor:pointer;
  background:var(--glass);border:1px solid var(--line-2);color:var(--ink);
  font-size:14px;font-weight:700;
}
.nav-toggle:hover{background:var(--glass-2);}
.nav-grid{
  display:grid;grid-template-columns:repeat(4,minmax(0,1fr));
  gap:10px;padding:8px 0 16px;
}
.nav-item{
  display:flex;align-items:center;gap:11px;
  padding:11px 14px;border-radius:14px;
  background:var(--glass);border:1px solid var(--line);
  font-size:14.5px;font-weight:700;letter-spacing:.6px;color:#d7defa;
  transition:transform .2s ease,background .2s ease,border-color .2s ease,box-shadow .25s ease;
}
.nav-ico{
  width:32px;height:32px;flex:0 0 auto;border-radius:10px;
  display:grid;place-items:center;
  background:rgba(109,92,255,.16);border:1px solid rgba(109,92,255,.32);
  color:#cfc7ff;
}
.nav-ico svg{width:17px;height:17px;}
.nav-item:hover{transform:translateY(-2px);background:var(--glass-2);border-color:rgba(34,211,238,.45);color:#fff;box-shadow:0 14px 30px -18px rgba(34,211,238,.8);}
.nav-item.is-active{
  background:linear-gradient(135deg,rgba(255,180,0,.16),rgba(255,180,0,.05));
  border-color:rgba(255,180,0,.55);color:#fff;
  box-shadow:0 0 0 1px rgba(255,180,0,.18) inset,0 16px 32px -20px rgba(255,180,0,.9);
}
.nav-item.is-active .nav-ico{background:rgba(255,180,0,.18);border-color:rgba(255,180,0,.5);color:var(--gold-2);}

/* ===== hero ===== */
.hero{position:relative;overflow:hidden;padding:clamp(44px,5vw,76px) 0 var(--step);}
.hero-bg{
  position:absolute;inset:0;z-index:0;
  background-image:linear-gradient(115deg,rgba(7,10,24,.96) 0%,rgba(9,13,32,.88) 46%,rgba(10,15,36,.72) 100%),
    url('/assets/images/红中_九江麻将.webp');
  background-size:cover;background-position:center right;
  opacity:.9;
}
.hero-bg::after{
  content:"";position:absolute;inset:0;
  background:radial-gradient(700px 320px at 78% 22%, rgba(34,211,238,.18), transparent 65%),
             radial-gradient(600px 300px at 12% 84%, rgba(255,180,0,.12), transparent 70%);
}
.hero-inner{position:relative;z-index:1;display:grid;grid-template-columns:1.08fr .92fr;gap:44px;align-items:center;}
.hero-copy h1{font-size:clamp(29px,4.2vw,46px);line-height:1.24;margin-bottom:18px;}
.hero-copy h1 span{color:var(--gold-2);}
.hero-lead{color:#c3ccec;font-size:16px;max-width:600px;}
.hero-tags{display:flex;flex-wrap:wrap;gap:9px;margin:20px 0 26px;}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:30px;}
.hero-stats{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:12px;max-width:520px;}
.hero-stat{
  background:var(--glass);border:1px solid var(--line);border-radius:var(--radius-sm);
  padding:14px 16px;backdrop-filter:blur(10px);
}
.hero-stat b{display:block;font-size:23px;color:var(--gold-2);letter-spacing:.5px;line-height:1.2;}
.hero-stat span{font-size:12.5px;color:var(--muted);letter-spacing:.6px;}
.hero-panel{position:relative;}
.terminal{
  background:linear-gradient(160deg,rgba(20,28,64,.92),rgba(11,16,38,.94));
  border:1px solid var(--line-2);border-radius:var(--radius);
  box-shadow:var(--shadow),0 0 0 1px rgba(34,211,238,.08) inset;
  overflow:hidden;backdrop-filter:blur(14px);
}
.term-head{
  display:flex;align-items:center;gap:10px;
  padding:13px 18px;font-size:12.5px;letter-spacing:1.2px;color:#9fb0e0;
  border-bottom:1px solid var(--line);background:rgba(255,255,255,.03);
}
.term-head .dot{width:8px;height:8px;border-radius:50%;background:var(--cyan);box-shadow:0 0 10px var(--cyan);}
.terminal pre{
  margin:0;padding:20px 18px 22px;background:transparent;border:0;
  font-family:ui-monospace,"SFMono-Regular",Menlo,Consolas,"Courier New",monospace;
  font-size:13.2px;line-height:2;color:#cdd8ff;white-space:pre-wrap;word-break:break-word;
}
.terminal .k{color:var(--cyan);}
.terminal .g{color:var(--gold-2);}
.terminal .m{color:#8e9bc6;}
.term-foot{
  display:flex;flex-wrap:wrap;gap:8px;padding:0 18px 18px;
}
.hero-note{font-size:12.5px;color:var(--muted);margin-top:14px;letter-spacing:.4px;}

/* ===== stat strip ===== */
.stat-strip{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:16px;}
.stat-card{
  position:relative;overflow:hidden;
  background:linear-gradient(165deg,rgba(255,255,255,.07),rgba(255,255,255,.02));
  border:1px solid var(--line);border-radius:var(--radius);
  padding:24px 20px;box-shadow:var(--shadow);
  transition:transform .25s ease,border-color .25s ease;
}
.stat-card:hover{transform:translateY(-4px);border-color:rgba(34,211,238,.4);}
.stat-card::before{
  content:"";position:absolute;top:0;left:0;width:100%;height:2px;
  background:linear-gradient(90deg,var(--cyan),var(--violet),transparent);
  opacity:.8;
}
.stat-num{font-size:34px;font-weight:800;color:#fff;line-height:1.1;letter-spacing:.5px;}
.stat-num small{font-size:15px;color:var(--gold-2);margin-left:4px;font-weight:700;}
.stat-label{font-size:13.5px;color:var(--muted);margin-top:8px;letter-spacing:.6px;}
.stat-desc{font-size:13px;color:#8b97be;margin-top:12px;padding-top:12px;border-top:1px dashed var(--line);}

/* ===== cards ===== */
.card{
  height:100%;
  background:linear-gradient(170deg,rgba(255,255,255,.065),rgba(255,255,255,.018));
  border:1px solid var(--line);border-radius:var(--radius);
  padding:24px 22px;box-shadow:var(--shadow);
  transition:transform .25s ease,border-color .25s ease,box-shadow .25s ease;
  display:flex;flex-direction:column;
}
.card:hover{transform:translateY(-5px);border-color:rgba(255,180,0,.4);box-shadow:0 26px 50px -28px rgba(255,180,0,.55);}
.card-ico{
  width:46px;height:46px;border-radius:14px;display:grid;place-items:center;
  margin-bottom:16px;color:var(--gold-2);
  background:linear-gradient(135deg,rgba(255,180,0,.18),rgba(109,92,255,.16));
  border:1px solid rgba(255,180,0,.28);
}
.card-ico svg{width:22px;height:22px;}
.card h3{font-size:18px;margin-bottom:10px;}
.card p{font-size:14px;color:#b9c3e4;margin-bottom:14px;}
.card .card-foot{margin-top:auto;display:flex;align-items:center;gap:8px;font-size:12.5px;color:var(--muted);}
.card-grid{margin-top:6px;}

/* ===== flow ===== */
.flow{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:18px;counter-reset:step;}
.flow-step{
  position:relative;padding:26px 22px 24px;
  background:var(--glass);border:1px solid var(--line);border-radius:var(--radius);
  transition:transform .25s ease,border-color .25s ease;
}
.flow-step:hover{transform:translateY(-4px);border-color:rgba(34,211,238,.42);}
.flow-step::before{
  counter-increment:step;content:"0" counter(step);
  display:block;font-size:13px;font-weight:800;letter-spacing:2px;color:var(--cyan);
  margin-bottom:10px;
}
.flow-step h3{font-size:17px;margin-bottom:8px;}
.flow-step p{font-size:14px;color:#b3bee0;margin:0;}

/* ===== compare ===== */
.compare{
  border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;
  background:rgba(255,255,255,.025);
}
.compare-head,.compare-row{display:grid;grid-template-columns:.85fr 1fr 1fr;gap:0;}
.compare-head{
  background:rgba(109,92,255,.14);
  font-size:13px;font-weight:800;letter-spacing:1.2px;color:#cfd6f7;
}
.compare-head span,.compare-row span{padding:16px 18px;}
.compare-row{border-top:1px solid var(--line);font-size:14px;}
.compare-row span:first-child{color:var(--gold-2);font-weight:700;}
.compare-row span:nth-child(2){color:#9aa6ca;}
.compare-row span:nth-child(3){color:#dbe3ff;background:rgba(34,211,238,.05);}

/* ===== timeline ===== */
.timeline{position:relative;padding-left:26px;}
.timeline::before{
  content:"";position:absolute;left:7px;top:6px;bottom:6px;width:2px;
  background:linear-gradient(180deg,var(--cyan),rgba(109,92,255,.4),transparent);
}
.tl-item{position:relative;padding:0 0 26px 18px;}
.tl-item:last-child{padding-bottom:0;}
.tl-item::before{
  content:"";position:absolute;left:-26px;top:8px;width:14px;height:14px;border-radius:50%;
  background:var(--bg-2);border:2px solid var(--cyan);box-shadow:0 0 14px rgba(34,211,238,.7);
}
.tl-item h3{font-size:16.5px;margin-bottom:6px;}
.tl-item p{font-size:14px;color:#b3bee0;margin:0;}
.tl-item .tl-meta{font-size:12.5px;color:var(--muted);letter-spacing:.8px;margin-bottom:6px;display:block;}

/* ===== channels ===== */
.channel-card{
  display:flex;flex-direction:column;height:100%;
  border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;
  background:linear-gradient(170deg,rgba(255,255,255,.07),rgba(255,255,255,.018));
  box-shadow:var(--shadow);
  transition:transform .25s ease,border-color .25s ease,box-shadow .25s ease;
}
.channel-card:hover{transform:translateY(-6px);border-color:rgba(255,180,0,.45);box-shadow:0 30px 56px -30px rgba(255,180,0,.6);}
.channel-thumb{position:relative;aspect-ratio:16/9;overflow:hidden;}
.channel-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .5s ease;}
.channel-card:hover .channel-thumb img{transform:scale(1.06);}
.channel-thumb::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(7,10,24,.05),rgba(7,10,24,.78));
}
.channel-body{padding:20px 20px 22px;display:flex;flex-direction:column;gap:9px;flex:1;}
.channel-body h3{font-size:17.5px;margin:0;}
.channel-body p{font-size:13.6px;color:#b3bee0;margin:0;}
.channel-more{margin-top:auto;font-size:13px;font-weight:800;color:var(--gold-2);letter-spacing:.8px;}

/* ===== feed ===== */
.feed-main{display:flex;flex-direction:column;gap:14px;}
.feed-item{
  display:block;padding:20px 22px;border-radius:var(--radius);
  background:var(--glass);border:1px solid var(--line);
  transition:transform .22s ease,border-color .22s ease,background .22s ease;
}
.feed-item:hover{transform:translateX(4px);border-color:rgba(34,211,238,.45);background:var(--glass-2);color:inherit;}
.feed-meta{display:flex;flex-wrap:wrap;align-items:center;gap:10px;font-size:12.5px;color:var(--muted);margin-bottom:8px;letter-spacing:.6px;}
.feed-item h3{font-size:16.5px;margin-bottom:8px;color:#fff;}
.feed-item p{font-size:13.6px;color:#a9b5d8;margin:0;}
.feed-empty{
  padding:26px 22px;border-radius:var(--radius);border:1px dashed var(--line-2);
  color:var(--muted);font-size:14px;background:rgba(255,255,255,.02);
}
.feed-side{
  border:1px solid var(--line);border-radius:var(--radius);
  background:linear-gradient(170deg,rgba(109,92,255,.14),rgba(255,255,255,.02));
  padding:22px 20px;height:100%;
}
.feed-side h3{font-size:16.5px;margin-bottom:14px;}
.side-list li{
  display:flex;gap:12px;padding:11px 0;border-bottom:1px dashed var(--line);
  font-size:13.6px;color:#c1cbe9;
}
.side-list li:last-child{border-bottom:0;padding-bottom:0;}
.side-list i{
  font-style:normal;font-size:12px;font-weight:800;color:var(--gold-2);
  flex:0 0 22px;
}

/* ===== scenes ===== */
.scene-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:16px;}
.scene{
  display:flex;gap:16px;align-items:flex-start;
  padding:22px;border-radius:var(--radius-sm);border:1px solid var(--line);
  background:var(--glass);transition:border-color .22s ease,transform .22s ease;
}
.scene:hover{border-color:rgba(255,180,0,.4);transform:translateY(-3px);}
.scene-ico{
  width:40px;height:40px;flex:0 0 auto;border-radius:12px;display:grid;place-items:center;
  background:rgba(34,211,238,.12);border:1px solid rgba(34,211,238,.3);color:var(--cyan);
}
.scene-ico svg{width:19px;height:19px;}
.scene h3{font-size:16px;margin-bottom:6px;}
.scene p{font-size:13.6px;color:#b3bee0;margin:0;}

/* ===== quotes ===== */
.quote-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:18px;}
.quote{
  padding:26px 22px;border-radius:var(--radius);position:relative;
  background:linear-gradient(170deg,rgba(255,255,255,.07),rgba(255,255,255,.018));
  border:1px solid var(--line);
}
.quote::before{
  content:"“";position:absolute;top:6px;right:18px;font-size:56px;line-height:1;
  color:rgba(255,180,0,.22);font-family:Georgia,serif;
}
.quote p{font-size:14.2px;color:#ccd5f2;margin-bottom:18px;}
.quote-who{display:flex;align-items:center;gap:10px;font-size:13px;color:var(--muted);}
.avatar{
  width:32px;height:32px;border-radius:50%;display:grid;place-items:center;
  font-size:13px;font-weight:800;color:#20160a;
  background:linear-gradient(135deg,var(--gold),var(--gold-2));
}

/* ===== guard bar ===== */
.guard-bar{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:16px;}
.guard-item{
  padding:22px 20px;border-radius:var(--radius-sm);
  border:1px solid var(--line);background:rgba(255,255,255,.03);
  transition:border-color .22s ease,background .22s ease;
}
.guard-item:hover{border-color:rgba(34,211,238,.4);background:rgba(34,211,238,.06);}
.guard-item h3{font-size:15.5px;margin-bottom:8px;color:#fff;}
.guard-item p{font-size:13.4px;color:#a9b5d8;margin:0;}

/* ===== quick answers ===== */
.quick-answers{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:16px;}
.qa{
  padding:22px 24px;border-radius:var(--radius-sm);
  border-left:3px solid var(--cyan);background:rgba(34,211,238,.055);
  border-top:1px solid var(--line);border-right:1px solid var(--line);border-bottom:1px solid var(--line);
}
.qa h3{font-size:15.5px;margin-bottom:8px;}
.qa p{font-size:13.8px;color:#b8c3e3;margin:0;}

/* ===== faq ===== */
.faq{display:flex;flex-direction:column;gap:12px;max-width:900px;}
.faq-item{
  border:1px solid var(--line);border-radius:var(--radius-sm);
  background:var(--glass);overflow:hidden;transition:border-color .22s ease;
}
.faq-item[open]{border-color:rgba(255,180,0,.42);background:rgba(255,180,0,.05);}
.faq-item summary{
  list-style:none;cursor:pointer;padding:18px 22px;
  font-size:15.5px;font-weight:700;color:#fff;
  display:flex;align-items:center;justify-content:space-between;gap:14px;
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary::after{
  content:"+";font-size:20px;font-weight:400;color:var(--gold-2);transition:transform .2s ease;
}
.faq-item[open] summary::after{transform:rotate(45deg);}
.faq-item .faq-body{padding:0 22px 20px;font-size:14px;color:#b8c3e3;}

/* ===== solver form ===== */
.solver{
  border-radius:var(--radius);border:1px solid var(--line-2);
  background:linear-gradient(160deg,rgba(109,92,255,.16),rgba(255,255,255,.025));
  padding:clamp(26px,3.4vw,44px);
  box-shadow:var(--shadow);
  display:grid;grid-template-columns:.95fr 1.05fr;gap:38px;align-items:start;
}
.solver h2{font-size:clamp(23px,2.8vw,31px);margin-bottom:14px;}
.solver p.solver-sub{color:#b8c3e3;font-size:14.6px;margin-bottom:0;}
.solver-points{margin-top:22px;display:flex;flex-direction:column;gap:10px;}
.solver-points li{display:flex;gap:10px;font-size:13.8px;color:#c6cfeb;}
.solver-points li::before{content:"◆";color:var(--gold);font-size:11px;line-height:2;}
.field{margin-bottom:16px;}
.field label{display:block;font-size:13px;color:#a8b4d8;letter-spacing:.8px;margin-bottom:7px;font-weight:700;}
.field input,.field select,.field textarea{
  width:100%;padding:12px 14px;border-radius:12px;
  background:rgba(7,10,24,.62);border:1px solid var(--line-2);
  color:var(--ink);font-size:14px;font-family:inherit;
  transition:border-color .2s ease,box-shadow .2s ease;
  margin:0;
}
.field input::placeholder,.field textarea::placeholder{color:#6f7ba4;}
.field input:focus,.field select:focus,.field textarea:focus{
  outline:none;border-color:var(--gold);box-shadow:0 0 0 3px rgba(255,180,0,.16);
}
.form-hint{font-size:12.5px;color:var(--muted);margin:14px 0 0;}
.form-msg{
  margin-top:14px;padding:12px 16px;border-radius:12px;font-size:13.5px;
  background:rgba(34,211,238,.12);border:1px solid rgba(34,211,238,.4);color:#b7f2ff;
}

/* ===== footer ===== */
.site-footer{
  border-top:1px solid var(--line);
  background:linear-gradient(180deg,rgba(8,12,30,.6),rgba(5,7,18,.98));
  padding:clamp(44px,5vw,66px) 0 26px;margin-top:0;
}
.footer-cols{gap:26px 0;}
.footer-brand p{font-size:13.6px;color:#9aa6ca;max-width:380px;margin:16px 0 0;}
.footer-col h4{font-size:14px;letter-spacing:1.4px;color:#fff;margin-bottom:14px;}
.footer-col li{margin-bottom:9px;}
.footer-col li a{font-size:13.6px;color:#9aa6ca;transition:color .2s ease;}
.footer-col li a:hover{color:var(--gold-2);}
.footer-note{font-size:13px;color:#8b97be;line-height:1.8;}
.footer-bottom{
  margin-top:34px;padding-top:20px;border-top:1px solid var(--line);
  display:flex;flex-wrap:wrap;gap:10px;justify-content:space-between;
  font-size:12.5px;color:#7f8bb0;letter-spacing:.4px;
}
.footer-bottom a{color:#9aa6ca;}
.footer-bottom a:hover{color:var(--gold-2);}

/* ===== responsive ===== */
@media screen and (max-width:1024px){
  .hero-inner{grid-template-columns:1fr;gap:34px;}
  .hero-stats{max-width:100%;}
  .stat-strip{grid-template-columns:repeat(2,minmax(0,1fr));}
  .flow{grid-template-columns:1fr;}
  .quote-grid{grid-template-columns:1fr;}
  .guard-bar{grid-template-columns:repeat(2,minmax(0,1fr));}
  .solver{grid-template-columns:1fr;gap:26px;}
  .nav-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
}
@media screen and (max-width:768px){
  .brand-row{padding:14px 0 8px;flex-wrap:wrap;gap:12px;}
  .brand-meta{display:none;}
  .nav-toggle{display:inline-flex;}
  .nav-grid{display:none;grid-template-columns:repeat(2,minmax(0,1fr));padding-bottom:14px;}
  .nav-grid.is-open{display:grid;}
  .compare-head{display:none;}
  .compare-row{grid-template-columns:1fr;gap:0;}
  .compare-row span{padding:12px 16px;}
  .compare-row span:nth-child(2)::before{content:"常见做法 · ";color:#7f8bb0;font-size:12px;}
  .compare-row span:nth-child(3)::before{content:"有据可查 · ";color:var(--cyan);font-size:12px;}
  .scene-grid{grid-template-columns:1fr;}
  .quick-answers{grid-template-columns:1fr;}
  .footer-bottom{flex-direction:column;align-items:flex-start;}
}
@media screen and (max-width:520px){
  .section{padding:48px 0;}
  .hero{padding-top:30px;}
  .hero-actions{flex-direction:column;align-items:stretch;}
  .hero-actions .btn{width:100%;}
  .hero-stats{grid-template-columns:1fr;}
  .stat-strip{grid-template-columns:1fr;}
  .guard-bar{grid-template-columns:1fr;}
  .nav-grid{grid-template-columns:1fr;}
  .terminal pre{font-size:12px;line-height:1.9;}
  .brand-text strong{font-size:17px;}
  .quote{padding:22px 18px;}
  .feed-item{padding:16px 16px;}
}

/* roulang page: category1 */
:root{
 --bg:#070a18;
 --bg-2:#0a0f24;
 --panel:#101736;
 --panel-2:#141c40;
 --ink:#e9eeff;
 --muted:#95a1c9;
 --gold:#ffb400;
 --gold-2:#ffd873;
 --cyan:#22d3ee;
 --violet:#6d5cff;
 --line:rgba(140,160,220,.16);
 --line-2:rgba(140,160,220,.28);
 --glass:rgba(255,255,255,.045);
 --glass-2:rgba(255,255,255,.075);
 --radius:18px;
 --radius-sm:12px;
 --shadow:0 22px 48px -26px rgba(0,0,0,.95);
 --glow:0 0 0 1px rgba(255,180,0,.4), 0 16px 38px -16px rgba(255,180,0,.65);
 --maxw:1180px;
 --step:clamp(56px,6.5vw,92px);
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
 margin:0;
 font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Source Han Sans SC",system-ui,-apple-system,"Helvetica Neue",Arial,sans-serif;
 color:var(--ink);
 background:
 radial-gradient(1100px 560px at 10% -8%, rgba(109,92,255,.30), transparent 62%),
 radial-gradient(900px 480px at 92% -4%, rgba(34,211,238,.18), transparent 58%),
 radial-gradient(800px 600px at 50% 118%, rgba(255,180,0,.10), transparent 60%),
 var(--bg);
 font-size:16px;
 line-height:1.75;
 letter-spacing:.2px;
 min-height:100vh;
}
img{max-width:100%;display:block;height:auto;}
a{color:inherit;text-decoration:none;transition:color .2s ease,opacity .2s ease;}
a:hover{color:var(--gold-2);}
button{font-family:inherit;}
h1,h2,h3,h4{font-family:inherit;color:#fff;letter-spacing:.6px;line-height:1.35;margin:0 0 .5rem;}
p{margin:0 0 1rem;}
ul{margin:0;padding:0;list-style:none;}
::selection{background:rgba(255,180,0,.32);color:#fff;}
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;
}
.grid-container{max-width:var(--maxw);margin-left:auto;margin-right:auto;padding-left:20px;padding-right:20px;width:100%;}
.section{padding:var(--step) 0;position:relative;}
.section--alt{background:linear-gradient(180deg,rgba(255,255,255,.03),rgba(255,255,255,0) 70%);border-top:1px solid var(--line);border-bottom:1px solid var(--line);}
.section-head{max-width:780px;margin-bottom:38px;}
.section-head.center{margin-left:auto;margin-right:auto;text-align:center;}
.section-title{font-size:clamp(24px,3.1vw,36px);letter-spacing:.6px;}
.section-sub{color:var(--muted);font-size:15.5px;margin:0;}
.eyebrow{
 display:inline-flex;align-items:center;gap:8px;
 font-size:13px;font-weight:700;letter-spacing:2px;
 color:var(--cyan);text-transform:uppercase;
 padding:6px 12px;border-radius:999px;
 background:rgba(34,211,238,.10);border:1px solid rgba(34,211,238,.28);
 margin-bottom:16px;
}
.eyebrow::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--cyan);box-shadow:0 0 12px var(--cyan);}
.btn{
 display:inline-flex;align-items:center;justify-content:center;gap:8px;
 padding:13px 26px;border-radius:999px;border:0;cursor:pointer;
 font-size:15px;font-weight:700;letter-spacing:.6px;text-align:center;
 transition:transform .2s ease,box-shadow .25s ease,background .25s ease,color .2s ease;
}
.btn-gold{background:linear-gradient(135deg,var(--gold) 0%,var(--gold-2) 100%);color:#20160a;box-shadow:var(--glow);}
.btn-gold:hover{transform:translateY(-2px);color:#1a1206;box-shadow:0 0 0 1px rgba(255,180,0,.6),0 22px 46px -16px rgba(255,180,0,.85);}
.btn-ghost{background:var(--glass);color:var(--ink);border:1px solid var(--line-2);backdrop-filter:blur(8px);}
.btn-ghost:hover{background:var(--glass-2);color:#fff;transform:translateY(-2px);border-color:rgba(34,211,238,.5);}
.btn:active{transform:translateY(0) scale(.99);}
.tag{
 display:inline-flex;align-items:center;
 font-size:12.5px;font-weight:700;color:var(--gold-2);
 background:rgba(255,180,0,.10);border:1px solid rgba(255,180,0,.28);
 padding:4px 11px;border-radius:999px;letter-spacing:.5px;
}
.tag--cyan{color:#a9f0ff;background:rgba(34,211,238,.10);border-color:rgba(34,211,238,.3);}
.tag--violet{color:#cfc7ff;background:rgba(109,92,255,.14);border-color:rgba(109,92,255,.34);}
/* ===== header ===== */
.site-header{
 position:sticky;top:0;z-index:60;
 background:rgba(8,12,30,.82);
 backdrop-filter:blur(18px);
 border-bottom:1px solid var(--line);
 box-shadow:0 12px 34px -24px rgba(0,0,0,.95);
}
.brand-row{display:flex;align-items:center;justify-content:space-between;gap:18px;padding:16px 0 10px;}
.brand{display:inline-flex;align-items:center;gap:12px;}
.brand-mark{
 width:44px;height:44px;border-radius:14px;
 display:grid;place-items:center;
 font-size:20px;font-weight:800;color:#1a1206;
 background:linear-gradient(135deg,var(--gold),var(--gold-2));
 box-shadow:0 10px 26px -12px rgba(255,180,0,.9);
 flex:0 0 auto;
}
.brand-text{display:flex;flex-direction:column;line-height:1.2;}
.brand-text strong{font-size:19px;letter-spacing:1.4px;color:#fff;}
.brand-text em{font-style:normal;font-size:12px;color:var(--muted);letter-spacing:1px;}
.brand-meta{
 font-size:12.5px;color:var(--muted);letter-spacing:.6px;
 padding:7px 14px;border-radius:999px;
 border:1px solid var(--line);background:var(--glass);
 white-space:nowrap;
}
.brand-meta b{color:var(--gold-2);font-weight:800;}
.nav-toggle{
 display:none;align-items:center;gap:8px;
 padding:10px 18px;border-radius:999px;cursor:pointer;
 background:var(--glass);border:1px solid var(--line-2);color:var(--ink);
 font-size:14px;font-weight:700;
}
.nav-toggle:hover{background:var(--glass-2);}
.nav-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:10px;padding:8px 0 16px;}
.nav-item{
 display:flex;align-items:center;gap:11px;
 padding:11px 14px;border-radius:14px;
 background:var(--glass);border:1px solid var(--line);
 font-size:14.5px;font-weight:700;letter-spacing:.6px;color:#d7defa;
 transition:transform .2s ease,background .2s ease,border-color .2s ease,box-shadow .25s ease;
}
.nav-ico{
 width:32px;height:32px;flex:0 0 auto;border-radius:10px;
 display:grid;place-items:center;
 background:rgba(109,92,255,.16);border:1px solid rgba(109,92,255,.32);
 color:#cfc7ff;
}
.nav-ico svg{width:17px;height:17px;}
.nav-item:hover{transform:translateY(-2px);background:var(--glass-2);border-color:rgba(34,211,238,.45);color:#fff;box-shadow:0 14px 30px -18px rgba(34,211,238,.8);}
.nav-item.is-active{
 background:linear-gradient(135deg,rgba(255,180,0,.16),rgba(255,180,0,.05));
 border-color:rgba(255,180,0,.55);color:#fff;
 box-shadow:0 0 0 1px rgba(255,180,0,.18) inset,0 16px 32px -20px rgba(255,180,0,.9);
}
.nav-item.is-active .nav-ico{background:rgba(255,180,0,.18);border-color:rgba(255,180,0,.5);color:var(--gold-2);}
/* ===== hero ===== */
.cat-hero{position:relative;overflow:hidden;padding:clamp(40px,5vw,74px) 0 clamp(46px,5.5vw,82px);}
.cat-hero::before{
 content:"";position:absolute;inset:0;z-index:0;
 background-image:
 linear-gradient(110deg,rgba(7,10,24,.96) 0%,rgba(7,10,24,.86) 46%,rgba(10,15,36,.68) 100%),
 url('/assets/images/红中麻将-麻将-麻将治百病-休闲娱乐-老年生活欢乐多-这是高手-高手都.webp');
 background-size:cover;background-position:center;
 opacity:.62;filter:saturate(.92);
}
.cat-hero::after{
 content:"";position:absolute;inset:0;z-index:0;pointer-events:none;
 background:radial-gradient(620px 320px at 82% 12%,rgba(255,180,0,.18),transparent 68%),
            radial-gradient(520px 300px at 6% 90%,rgba(34,211,238,.16),transparent 70%);
}
.cat-hero .grid-container{position:relative;z-index:1;}
.crumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--muted);margin-bottom:20px;}
.crumb a:hover{color:var(--gold-2);}
.crumb span.sep{opacity:.45;}
.hero-title{
 font-size:clamp(28px,4.2vw,50px);
 line-height:1.22;letter-spacing:1px;margin:0 0 18px;
 background:linear-gradient(120deg,#ffffff 0%,#e6ecff 46%,#ffd873 100%);
 -webkit-background-clip:text;background-clip:text;color:transparent;
}
.hero-lead{color:#c5cfef;font-size:16.5px;max-width:620px;margin:0 0 22px;}
.hero-chips{display:flex;flex-wrap:wrap;gap:9px;margin-bottom:26px;}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;}
/* probe panel */
.probe{
 border-radius:var(--radius);
 border:1px solid rgba(255,180,0,.22);
 background:linear-gradient(160deg,rgba(20,28,64,.92),rgba(10,15,36,.9));
 box-shadow:var(--shadow),0 0 0 1px rgba(255,255,255,.04) inset;
 padding:22px 22px 20px;
 backdrop-filter:blur(14px);
}
.probe-head{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-bottom:6px;}
.probe-head h2{font-size:16.5px;margin:0;letter-spacing:.8px;}
.probe-step{font-size:12px;color:var(--muted);letter-spacing:1px;}
.probe-q{font-size:14px;color:#cfd8f7;margin:10px 0 12px;}
.probe-options{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:16px;}
.opt{
 font-size:13px;font-weight:600;padding:8px 14px;border-radius:999px;
 border:1px solid var(--line-2);background:rgba(255,255,255,.04);color:#c7d1f2;
}
.opt.is-on{background:linear-gradient(135deg,rgba(255,180,0,.9),rgba(255,216,115,.9));color:#20160a;border-color:transparent;box-shadow:0 10px 24px -14px rgba(255,180,0,.9);}
.probe-result{
 border-radius:14px;border:1px dashed rgba(34,211,238,.38);
 background:rgba(34,211,238,.06);
 padding:14px 16px;margin-bottom:16px;
}
.probe-result h3{font-size:13px;letter-spacing:1.2px;color:var(--cyan);margin:0 0 8px;}
.probe-result dl{margin:0;display:grid;grid-template-columns:auto 1fr;gap:6px 14px;font-size:13.5px;}
.probe-result dt{color:var(--muted);}
.probe-result dd{margin:0;color:#eaf0ff;font-weight:600;}
.probe .btn{width:100%;}
.probe-note{font-size:12px;color:var(--muted);margin:10px 0 0;text-align:center;}
/* ===== stats ===== */
.stats-strip{
 border-top:1px solid var(--line);border-bottom:1px solid var(--line);
 background:linear-gradient(90deg,rgba(109,92,255,.12),rgba(34,211,238,.08),rgba(255,180,0,.10));
}
.stats-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:0;padding:0;}
.stat{padding:26px 18px;border-right:1px solid var(--line);}
.stat:last-child{border-right:0;}
.stat b{display:block;font-size:clamp(22px,2.6vw,30px);color:var(--gold-2);letter-spacing:1px;line-height:1.2;}
.stat span{font-size:13px;color:var(--muted);letter-spacing:.6px;}
/* ===== matrix cards ===== */
.card-grid{display:grid;gap:16px;grid-template-columns:repeat(3,minmax(0,1fr));}
.rule-card{
 border-radius:var(--radius-sm);
 border:1px solid var(--line);
 background:linear-gradient(165deg,rgba(20,28,64,.86),rgba(12,18,42,.9));
 padding:22px 20px;
 box-shadow:var(--shadow);
 transition:transform .22s ease,border-color .22s ease,box-shadow .25s ease;
 position:relative;overflow:hidden;
}
.rule-card::before{
 content:"";position:absolute;left:0;top:0;height:3px;width:100%;
 background:linear-gradient(90deg,var(--gold),var(--cyan));
 opacity:.55;
}
.rule-card:hover{transform:translateY(-4px);border-color:rgba(255,180,0,.42);box-shadow:0 26px 50px -28px rgba(255,180,0,.7);}
.rule-card h3{font-size:17px;margin:12px 0 8px;}
.rule-card p{font-size:14px;color:#b9c4e8;margin:0 0 12px;}
.rule-card .mini-list li{
 font-size:13px;color:var(--muted);padding-left:14px;position:relative;margin-bottom:4px;
}
.rule-card .mini-list li::before{content:"";position:absolute;left:0;top:10px;width:5px;height:5px;border-radius:50%;background:var(--cyan);opacity:.8;}
/* ===== compare table ===== */
.table-wrap{
 border-radius:var(--radius-sm);border:1px solid var(--line);
 background:rgba(12,18,42,.72);overflow-x:auto;box-shadow:var(--shadow);
}
table.compare{width:100%;border-collapse:collapse;min-width:720px;margin:0;}
table.compare caption{
 text-align:left;padding:16px 20px;font-size:13px;color:var(--muted);
 border-bottom:1px solid var(--line);caption-side:top;
}
table.compare th,table.compare td{padding:14px 18px;font-size:14px;text-align:left;border-bottom:1px solid var(--line);}
table.compare thead th{background:rgba(109,92,255,.16);color:#fff;font-size:13.5px;letter-spacing:.8px;white-space:nowrap;}
table.compare tbody tr:nth-child(even){background:rgba(255,255,255,.022);}
table.compare tbody tr:hover{background:rgba(34,211,238,.06);}
table.compare td:first-child{color:var(--gold-2);font-weight:700;white-space:nowrap;}
/* ===== flow ===== */
.flow-list{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:16px;counter-reset:step;}
.flow-item{
 position:relative;padding:24px 20px 20px;border-radius:var(--radius-sm);
 border:1px solid var(--line);background:rgba(255,255,255,.035);
}
.flow-item::after{
 content:"";position:absolute;right:-9px;top:50%;width:18px;height:1px;background:var(--line-2);
}
.flow-item:last-child::after{display:none;}
.flow-num{
 display:inline-grid;place-items:center;width:34px;height:34px;border-radius:11px;
 font-weight:800;font-size:15px;color:#20160a;
 background:linear-gradient(135deg,var(--gold),var(--gold-2));
 margin-bottom:12px;
}
.flow-item h3{font-size:16px;margin:0 0 8px;}
.flow-item p{font-size:13.5px;color:var(--muted);margin:0;}
/* ===== feature split ===== */
.feature-split{display:grid;grid-template-columns:1.05fr .95fr;gap:34px;align-items:center;}
.feature-media{border-radius:var(--radius);overflow:hidden;border:1px solid var(--line-2);box-shadow:var(--shadow);position:relative;}
.feature-media img{width:100%;aspect-ratio:16/11;object-fit:cover;}
.feature-media figcaption{
 position:absolute;left:0;right:0;bottom:0;padding:16px 18px;font-size:12.5px;color:#dbe4ff;
 background:linear-gradient(180deg,rgba(7,10,24,0),rgba(7,10,24,.92));
}
.check-list li{
 display:flex;gap:12px;align-items:flex-start;padding:12px 0;border-bottom:1px dashed var(--line);
 font-size:14.5px;color:#c8d2f0;
}
.check-list li:last-child{border-bottom:0;}
.check-list .dot{
 flex:0 0 auto;width:22px;height:22px;border-radius:50%;margin-top:3px;
 display:grid;place-items:center;font-size:12px;font-weight:800;color:#20160a;
 background:linear-gradient(135deg,var(--gold),var(--gold-2));
}
/* ===== quick answer ===== */
.quick-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:16px;}
.quick-card{
 border-radius:var(--radius-sm);border:1px solid rgba(34,211,238,.24);
 background:linear-gradient(160deg,rgba(34,211,238,.10),rgba(16,23,54,.92));
 padding:20px;
}
.quick-card h3{font-size:15.5px;margin:0 0 8px;color:#a9f0ff;}
.quick-card p{font-size:13.5px;color:#b9c4e8;margin:0;}
/* ===== faq ===== */
.faq-list{display:grid;gap:12px;max-width:900px;}
.faq-item{
 border-radius:var(--radius-sm);border:1px solid var(--line);
 background:rgba(255,255,255,.035);padding:0;overflow:hidden;
}
.faq-item summary{
 cursor:pointer;list-style:none;padding:18px 52px 18px 20px;position:relative;
 font-size:15.5px;font-weight:700;color:#eaf0ff;
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary::after{
 content:"+";position:absolute;right:20px;top:50%;transform:translateY(-50%);
 font-size:20px;color:var(--gold-2);font-weight:700;line-height:1;
 transition:transform .2s ease;
}
.faq-item[open] summary::after{content:"–";}
.faq-item[open] summary{background:rgba(255,180,0,.07);color:#fff;}
.faq-body{padding:0 20px 18px;color:#b9c4e8;font-size:14.5px;}
.faq-body p{margin:0;}
/* ===== form ===== */
.checker-wrap{
 border-radius:var(--radius);
 border:1px solid rgba(255,180,0,.26);
 background:linear-gradient(155deg,rgba(20,28,64,.94),rgba(9,13,32,.96));
 box-shadow:var(--shadow);padding:clamp(24px,3vw,40px);
 display:grid;grid-template-columns:.85fr 1.15fr;gap:34px;align-items:start;
}
.checker-intro h2{font-size:clamp(22px,2.6vw,30px);margin:0 0 12px;}
.checker-intro p{color:var(--muted);font-size:14.5px;margin:0 0 16px;}
.checker-intro .kv{display:flex;flex-wrap:wrap;gap:8px;}
.field{margin-bottom:16px;}
.field label{display:block;font-size:13px;letter-spacing:.8px;color:#c2cced;margin-bottom:7px;font-weight:600;}
.field input,.field select,.field textarea{
 width:100%;padding:12px 14px;border-radius:12px;
 background:rgba(255,255,255,.05);border:1px solid var(--line-2);
 color:var(--ink);font-size:14.5px;font-family:inherit;
 transition:border-color .2s ease,background .2s ease,box-shadow .2s ease;
}
.field textarea{min-height:104px;resize:vertical;line-height:1.7;}
.field input::placeholder,.field textarea::placeholder{color:#7f8ab0;}
.field input:hover,.field select:hover,.field textarea:hover{border-color:rgba(34,211,238,.42);}
.field input:focus,.field select:focus,.field textarea:focus{
 background:rgba(255,255,255,.08);border-color:rgba(255,180,0,.62);
 box-shadow:0 0 0 3px rgba(255,180,0,.14);outline:none;
}
.field select{appearance:none;background-image:linear-gradient(45deg,transparent 50%,var(--gold-2) 50%),linear-gradient(135deg,var(--gold-2) 50%,transparent 50%);background-position:calc(100% - 20px) 21px,calc(100% - 14px) 21px;background-size:6px 6px,6px 6px;background-repeat:no-repeat;}
.field-row{display:grid;grid-template-columns:1fr 1fr;gap:14px;}
.form-hint{font-size:12.5px;color:var(--muted);margin:0 0 16px;}
.form-status{margin:12px 0 0;font-size:13.5px;color:var(--gold-2);min-height:22px;}
/* ===== footer ===== */
.site-footer{
 border-top:1px solid var(--line);
 background:linear-gradient(180deg,rgba(10,15,36,.7),rgba(5,8,20,.96));
 padding:var(--step) 0 26px;margin-top:0;
}
.footer-cols{padding-bottom:30px;}
.footer-brand p{font-size:13.5px;color:var(--muted);margin:16px 0 0;max-width:420px;}
.footer-col h4{font-size:14px;letter-spacing:1.4px;color:#fff;margin:4px 0 14px;}
.footer-col ul li{margin-bottom:9px;}
.footer-col ul li a{font-size:13.5px;color:#a9b4d8;}
.footer-col ul li a:hover{color:var(--gold-2);}
.footer-note{font-size:13px;color:var(--muted);line-height:1.8;margin:0;}
.footer-bottom{
 border-top:1px solid var(--line);padding-top:18px;
 display:flex;flex-wrap:wrap;justify-content:space-between;gap:10px;
 font-size:12.5px;color:#7f8ab0;letter-spacing:.4px;
}
/* ===== responsive ===== */
@media (max-width:1024px){
 .nav-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
 .card-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
 .flow-list{grid-template-columns:repeat(2,minmax(0,1fr));}
 .flow-item::after{display:none;}
 .feature-split{grid-template-columns:1fr;gap:24px;}
 .checker-wrap{grid-template-columns:1fr;gap:26px;}
 .stats-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
 .stat:nth-child(2){border-right:0;}
 .stat:nth-child(1),.stat:nth-child(2){border-bottom:1px solid var(--line);}
}
@media (max-width:880px){
 .brand-meta{display:none;}
 .nav-toggle{display:inline-flex;}
 .nav-grid{display:none;grid-template-columns:1fr;padding-top:4px;}
 .nav-grid.is-open{display:grid;}
 .brand-row{padding-bottom:14px;}
}
@media (max-width:768px){
 .card-grid{grid-template-columns:1fr;}
 .quick-grid{grid-template-columns:1fr;}
 .flow-list{grid-template-columns:1fr;}
 .hero-lead{font-size:15.5px;}
 .section-head{margin-bottom:28px;}
 .probe{padding:18px;}
}
@media (max-width:520px){
 .stats-grid{grid-template-columns:1fr;}
 .stat{border-right:0;border-bottom:1px solid var(--line);padding:20px 16px;}
 .stat:last-child{border-bottom:0;}
 .field-row{grid-template-columns:1fr;}
 .hero-actions .btn{width:100%;}
 .footer-bottom{flex-direction:column;}
 .brand-text em{display:none;}
 .brand-text strong{font-size:17px;}
 .brand-mark{width:38px;height:38px;border-radius:12px;font-size:18px;}
 .faq-item summary{font-size:14.5px;padding:16px 46px 16px 16px;}
 .faq-body{padding:0 16px 16px;}
 table.compare th,table.compare td{padding:12px 14px;font-size:13px;}
}

/* roulang page: article */
:root{
 --bg:#070a18;
 --bg-2:#0a0f24;
 --panel:#101736;
 --panel-2:#141c40;
 --ink:#e9eeff;
 --muted:#95a1c9;
 --gold:#ffb400;
 --gold-2:#ffd873;
 --cyan:#22d3ee;
 --violet:#6d5cff;
 --line:rgba(140,160,220,.16);
 --line-2:rgba(140,160,220,.28);
 --glass:rgba(255,255,255,.045);
 --glass-2:rgba(255,255,255,.075);
 --radius:18px;
 --radius-sm:12px;
 --shadow:0 22px 48px -26px rgba(0,0,0,.95);
 --glow:0 0 0 1px rgba(255,180,0,.4), 0 16px 38px -16px rgba(255,180,0,.65);
 --maxw:1180px;
 --step:clamp(52px,6vw,86px);
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
 margin:0;
 font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Source Han Sans SC",system-ui,-apple-system,"Helvetica Neue",Arial,sans-serif;
 color:var(--ink);
 background:
  radial-gradient(1100px 560px at 10% -8%, rgba(109,92,255,.30), transparent 62%),
  radial-gradient(900px 480px at 92% -4%, rgba(34,211,238,.18), transparent 58%),
  radial-gradient(800px 600px at 50% 118%, rgba(255,180,0,.10), transparent 60%),
  var(--bg);
 font-size:16px;
 line-height:1.75;
 letter-spacing:.2px;
 min-height:100vh;
 -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;height:auto;}
a{color:inherit;text-decoration:none;transition:color .2s ease,opacity .2s ease;}
a:hover{color:var(--gold-2);}
button{font-family:inherit;}
h1,h2,h3,h4{margin:0;font-weight:800;line-height:1.32;color:#fff;letter-spacing:.4px;}
p{margin:0 0 1em;}
ul,ol{margin:0;padding:0;list-style:none;}
:focus-visible{outline:2px solid var(--gold);outline-offset:3px;border-radius:8px;}
.grid-container{max-width:var(--maxw);margin-left:auto;margin-right:auto;padding-left:20px;padding-right:20px;width:100%;}
.section{padding:var(--step) 0;position:relative;}
.section--alt{background:linear-gradient(180deg,rgba(255,255,255,.03),rgba(255,255,255,0) 70%);border-top:1px solid var(--line);border-bottom:1px solid var(--line);}
.section-head{max-width:780px;margin-bottom:32px;}
.section-head.center{margin-left:auto;margin-right:auto;text-align:center;}
.section-title{font-size:clamp(23px,2.9vw,34px);letter-spacing:.6px;}
.section-sub{color:var(--muted);font-size:15.5px;margin:10px 0 0;}
.eyebrow{
 display:inline-flex;align-items:center;gap:8px;
 font-size:12.5px;font-weight:700;letter-spacing:2px;
 color:var(--cyan);text-transform:uppercase;
 padding:6px 12px;border-radius:999px;
 background:rgba(34,211,238,.10);border:1px solid rgba(34,211,238,.28);
 margin-bottom:14px;
}
.eyebrow::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--cyan);box-shadow:0 0 12px var(--cyan);}
/* ===== buttons ===== */
.btn{
 display:inline-flex;align-items:center;justify-content:center;gap:8px;
 padding:13px 26px;border-radius:999px;border:0;cursor:pointer;
 font-size:15px;font-weight:700;letter-spacing:.6px;
 transition:transform .2s ease,box-shadow .25s ease,background .25s ease,color .2s ease;
 white-space:nowrap;
}
.btn-gold{background:linear-gradient(135deg,var(--gold) 0%,var(--gold-2) 100%);color:#20160a;box-shadow:var(--glow);}
.btn-gold:hover{transform:translateY(-2px);color:#1a1206;box-shadow:0 0 0 1px rgba(255,180,0,.6),0 22px 46px -16px rgba(255,180,0,.85);}
.btn-ghost{background:var(--glass);color:var(--ink);border:1px solid var(--line-2);backdrop-filter:blur(8px);}
.btn-ghost:hover{background:var(--glass-2);color:#fff;transform:translateY(-2px);border-color:rgba(34,211,238,.5);}
.btn:active{transform:translateY(0) scale(.99);}
.tag{
 display:inline-flex;align-items:center;
 font-size:12.5px;font-weight:700;color:var(--gold-2);
 background:rgba(255,180,0,.10);border:1px solid rgba(255,180,0,.28);
 padding:4px 11px;border-radius:999px;letter-spacing:.5px;
}
.tag--cyan{color:#a9f0ff;background:rgba(34,211,238,.10);border-color:rgba(34,211,238,.3);}
.tag--violet{color:#cfc7ff;background:rgba(109,92,255,.14);border-color:rgba(109,92,255,.34);}
/* ===== header ===== */
.site-header{
 position:sticky;top:0;z-index:60;
 background:rgba(8,12,30,.82);
 backdrop-filter:blur(18px);
 border-bottom:1px solid var(--line);
 box-shadow:0 12px 34px -24px rgba(0,0,0,.95);
}
.brand-row{display:flex;align-items:center;justify-content:space-between;gap:18px;padding:16px 0 10px;}
.brand{display:inline-flex;align-items:center;gap:12px;}
.brand-mark{
 width:44px;height:44px;border-radius:14px;display:grid;place-items:center;
 font-size:20px;font-weight:800;color:#1a1206;
 background:linear-gradient(135deg,var(--gold),var(--gold-2));
 box-shadow:0 10px 26px -12px rgba(255,180,0,.9);
 flex:0 0 auto;
}
.brand-text{display:flex;flex-direction:column;line-height:1.2;}
.brand-text strong{font-size:19px;letter-spacing:1.4px;color:#fff;}
.brand-text em{font-style:normal;font-size:12px;color:var(--muted);letter-spacing:1px;}
.brand-meta{
 font-size:12.5px;color:var(--muted);letter-spacing:.6px;
 padding:7px 14px;border-radius:999px;border:1px solid var(--line);background:var(--glass);white-space:nowrap;
}
.brand-meta b{color:var(--gold-2);font-weight:800;}
.nav-toggle{
 display:none;align-items:center;gap:8px;
 padding:10px 18px;border-radius:999px;cursor:pointer;
 background:var(--glass);border:1px solid var(--line-2);color:var(--ink);
 font-size:14px;font-weight:700;
}
.nav-toggle:hover{background:var(--glass-2);}
.nav-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:10px;padding:8px 0 16px;}
.nav-item{
 display:flex;align-items:center;gap:11px;
 padding:11px 14px;border-radius:14px;
 background:var(--glass);border:1px solid var(--line);
 font-size:14.5px;font-weight:700;letter-spacing:.6px;color:#d7defa;
 transition:transform .2s ease,background .2s ease,border-color .2s ease,box-shadow .25s ease;
}
.nav-ico{
 width:32px;height:32px;flex:0 0 auto;border-radius:10px;display:grid;place-items:center;
 background:rgba(109,92,255,.16);border:1px solid rgba(109,92,255,.32);color:#cfc7ff;
}
.nav-ico svg{width:17px;height:17px;}
.nav-item:hover{transform:translateY(-2px);background:var(--glass-2);border-color:rgba(34,211,238,.45);color:#fff;box-shadow:0 14px 30px -18px rgba(34,211,238,.8);}
.nav-item.is-active{
 background:linear-gradient(135deg,rgba(255,180,0,.16),rgba(255,180,0,.05));
 border-color:rgba(255,180,0,.55);color:#fff;
 box-shadow:0 0 0 1px rgba(255,180,0,.18) inset,0 16px 32px -20px rgba(255,180,0,.9);
}
.nav-item.is-active .nav-ico{background:rgba(255,180,0,.18);border-color:rgba(255,180,0,.5);color:var(--gold-2);}
/* ===== article head ===== */
.article-head{
 position:relative;overflow:hidden;
 padding:clamp(26px,3.6vw,46px) 0 clamp(34px,4.4vw,62px);
 border-bottom:1px solid var(--line);
 background:linear-gradient(180deg,rgba(8,12,30,.15),rgba(7,10,24,.92));
}
.article-head::before{
 content:"";position:absolute;inset:0;z-index:0;
 background-image:url('/assets/images/一次打麻将就连胡三把_朋友说我这是新手保护期_.webp');
 background-size:cover;background-position:center;
 opacity:.14;filter:saturate(.75);
}
.article-head::after{
 content:"";position:absolute;inset:0;z-index:0;
 background:radial-gradient(760px 380px at 10% -20%, rgba(109,92,255,.4), transparent 62%),
            radial-gradient(680px 340px at 94% 10%, rgba(34,211,238,.22), transparent 62%);
}
.article-head .grid-container{position:relative;z-index:1;}
.crumb{display:flex;align-items:center;gap:9px;font-size:13px;color:var(--muted);margin-bottom:22px;flex-wrap:wrap;}
.crumb a{color:var(--muted);}
.crumb a:hover{color:var(--gold-2);}
.crumb span.sep{opacity:.5;}
.crumb-cur{color:#cfd8ff;}
.head-grid{display:grid;grid-template-columns:minmax(0,1fr) 360px;gap:clamp(24px,3.4vw,48px);align-items:center;}
.head-main h1{font-size:clamp(25px,3.5vw,40px);line-height:1.28;margin:14px 0 16px;letter-spacing:.5px;}
.meta-row{display:flex;flex-wrap:wrap;gap:10px 22px;font-size:13.5px;color:var(--muted);margin-top:6px;}
.meta-row li{display:flex;align-items:center;gap:7px;}
.meta-row li::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--gold);box-shadow:0 0 10px rgba(255,180,0,.8);}
.head-cover{
 margin:0;border-radius:var(--radius);overflow:hidden;
 border:1px solid var(--line-2);box-shadow:var(--shadow);
 background:var(--panel);
 transform:perspective(1200px) rotateY(-4deg);
 transition:transform .35s ease;
}
.head-cover:hover{transform:perspective(1200px) rotateY(0deg) translateY(-4px);}
.head-cover img{width:100%;height:250px;object-fit:cover;}
.head-cover figcaption{padding:12px 16px;font-size:12.5px;color:var(--muted);letter-spacing:.4px;border-top:1px solid var(--line);}
/* ===== prose ===== */
.prose-card{
 background:linear-gradient(180deg,rgba(255,255,255,.055),rgba(255,255,255,.02));
 border:1px solid var(--line);border-radius:var(--radius);
 padding:clamp(22px,3.2vw,46px);
 box-shadow:var(--shadow);
 backdrop-filter:blur(10px);
}
.prose{font-size:16.5px;line-height:1.95;color:#d9e2ff;}
.prose > *:first-child{margin-top:0;}
.prose h2{
 margin:2.1em 0 .8em;font-size:clamp(20px,2.4vw,26px);
 padding-left:14px;border-left:4px solid var(--gold);
}
.prose h3{margin:1.7em 0 .6em;font-size:18.5px;color:var(--gold-2);}
.prose h4{margin:1.4em 0 .5em;font-size:16.5px;color:#fff;}
.prose p{margin:0 0 1.15em;}
.prose ul,.prose ol{margin:0 0 1.25em;padding-left:1.35em;}
.prose ul{list-style:disc;}
.prose ol{list-style:decimal;}
.prose li{margin:.4em 0;}
.prose li::marker{color:var(--gold);}
.prose blockquote{
 margin:1.4em 0;padding:14px 20px;
 border-left:3px solid var(--cyan);
 background:rgba(34,211,238,.07);
 border-radius:0 var(--radius-sm) var(--radius-sm) 0;
 color:#c9f6ff;
}
.prose img{border-radius:var(--radius-sm);margin:1.3em 0;box-shadow:var(--shadow);}
.prose table{width:100%;border-collapse:collapse;margin:1.3em 0;font-size:14.5px;}
.prose th,.prose td{border:1px solid var(--line-2);padding:10px 12px;text-align:left;}
.prose th{background:rgba(255,255,255,.06);color:#fff;font-weight:700;}
.prose code{background:rgba(255,255,255,.09);padding:2px 7px;border-radius:6px;font-size:.92em;color:var(--gold-2);}
.prose a{color:var(--gold-2);text-decoration:underline;text-underline-offset:3px;}
.prose hr{border:0;border-top:1px solid var(--line);margin:2em 0;}
.not-found{
 text-align:center;padding:52px 24px;border:1px dashed var(--line-2);
 border-radius:var(--radius);background:var(--glass);
}
.not-found h2{font-size:22px;margin-bottom:10px;}
.not-found p{color:var(--muted);margin-bottom:22px;}
/* ===== keypoints ===== */
.kp-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:18px;}
.kp-card{
 position:relative;padding:26px 22px 22px;
 border-radius:var(--radius);border:1px solid var(--line);
 background:linear-gradient(180deg,rgba(255,255,255,.06),rgba(255,255,255,.02));
 box-shadow:var(--shadow);backdrop-filter:blur(10px);
 transition:transform .25s ease,border-color .25s ease,box-shadow .25s ease;
}
.kp-card:hover{transform:translateY(-5px);border-color:rgba(34,211,238,.45);box-shadow:0 0 0 1px rgba(34,211,238,.2),0 26px 46px -26px rgba(34,211,238,.75);}
.kp-num{
 display:inline-block;font-size:13px;font-weight:800;letter-spacing:2px;
 color:var(--gold-2);background:rgba(255,180,0,.12);
 border:1px solid rgba(255,180,0,.3);border-radius:999px;padding:3px 10px;margin-bottom:14px;
}
.kp-card h3{font-size:17.5px;margin-bottom:8px;}
.kp-card p{color:var(--muted);font-size:14.5px;margin:0;line-height:1.85;}
/* ===== spec table ===== */
.spec-wrap{
 border-radius:var(--radius);border:1px solid var(--line);
 background:var(--panel);overflow:hidden;box-shadow:var(--shadow);
}
.spec-head{
 display:flex;flex-wrap:wrap;gap:10px 18px;align-items:center;justify-content:space-between;
 padding:18px 22px;border-bottom:1px solid var(--line);
 background:linear-gradient(135deg,rgba(109,92,255,.18),rgba(34,211,238,.08));
}
.spec-head h3{font-size:17px;letter-spacing:.6px;}
.spec-head span{font-size:12.5px;color:var(--muted);}
.table-scroll{overflow-x:auto;}
.spec-table{width:100%;border-collapse:collapse;min-width:640px;font-size:14.5px;}
.spec-table th,.spec-table td{padding:14px 18px;text-align:left;border-bottom:1px solid var(--line);}
.spec-table thead th{background:rgba(255,255,255,.05);color:#cfd8ff;font-size:13px;letter-spacing:1px;white-space:nowrap;}
.spec-table tbody tr{transition:background .2s ease;}
.spec-table tbody tr:hover{background:rgba(255,180,0,.06);}
.spec-table tbody tr:last-child td{border-bottom:0;}
.spec-table td:first-child{color:#fff;font-weight:700;}
.spec-table .fan{color:var(--gold-2);font-weight:700;white-space:nowrap;}
/* ===== shots ===== */
.shots-bar{display:flex;align-items:center;justify-content:space-between;gap:16px;margin-bottom:22px;flex-wrap:wrap;}
.shot-nav{display:flex;gap:10px;}
.shot-btn{
 width:42px;height:42px;border-radius:50%;display:grid;place-items:center;cursor:pointer;
 background:var(--glass);border:1px solid var(--line-2);color:var(--ink);font-size:17px;line-height:1;
 transition:background .2s ease,border-color .2s ease,transform .2s ease;
}
.shot-btn:hover{background:var(--glass-2);border-color:rgba(255,180,0,.55);color:var(--gold-2);transform:translateY(-2px);}
.shot-track{
 display:flex;gap:16px;overflow-x:auto;scroll-snap-type:x mandatory;
 padding-bottom:14px;scrollbar-width:thin;
}
.shot-track::-webkit-scrollbar{height:8px;}
.shot-track::-webkit-scrollbar-track{background:rgba(255,255,255,.05);border-radius:999px;}
.shot-track::-webkit-scrollbar-thumb{background:rgba(255,180,0,.45);border-radius:999px;}
.shot-item{
 flex:0 0 min(320px,80vw);scroll-snap-align:start;
 border-radius:var(--radius);overflow:hidden;border:1px solid var(--line);
 background:var(--panel);box-shadow:var(--shadow);
 transition:transform .25s ease,border-color .25s ease;
}
.shot-item:hover{transform:translateY(-4px);border-color:rgba(255,180,0,.5);}
.shot-item img{width:100%;height:186px;object-fit:cover;}
.shot-cap{padding:13px 16px 16px;font-size:13.5px;color:var(--muted);line-height:1.7;}
/* ===== flow ===== */
.flow-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:16px;counter-reset:flow;}
.flow-step{
 position:relative;padding:24px 20px 22px;border-radius:var(--radius);
 border:1px solid var(--line);background:var(--glass);backdrop-filter:blur(10px);
 transition:border-color .25s ease,transform .25s ease;
}
.flow-step:hover{border-color:rgba(109,92,255,.55);transform:translateY(-4px);}
.flow-step::before{
 counter-increment:flow;content:"0" counter(flow);
 display:block;font-size:22px;font-weight:800;color:var(--violet);
 letter-spacing:2px;margin-bottom:10px;
 text-shadow:0 0 22px rgba(109,92,255,.8);
}
.flow-step h3{font-size:16.5px;margin-bottom:8px;}
.flow-step p{margin:0;font-size:14px;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-sm);
 background:var(--glass);overflow:hidden;
 transition:border-color .25s ease,background .25s ease;
}
.faq-item[open]{border-color:rgba(255,180,0,.45);background:rgba(255,180,0,.05);}
.faq-item summary{
 cursor:pointer;padding:16px 20px;font-weight:700;font-size:15.5px;color:#fff;
 list-style:none;display:flex;align-items:center;gap:12px;
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary::before{
 content:"问";flex:0 0 auto;width:24px;height:24px;border-radius:8px;
 display:grid;place-items:center;font-size:12px;font-weight:800;color:#1a1206;
 background:linear-gradient(135deg,var(--gold),var(--gold-2));
}
.faq-item summary:hover{color:var(--gold-2);}
.faq-answer{padding:0 20px 18px 56px;color:var(--muted);font-size:14.5px;line-height:1.9;}
/* ===== cta ===== */
.cta-band{
 position:relative;overflow:hidden;
 border-radius:var(--radius);border:1px solid rgba(255,180,0,.32);
 padding:clamp(28px,4vw,52px);
 background:
  radial-gradient(620px 260px at 12% -30%, rgba(255,180,0,.22), transparent 62%),
  radial-gradient(560px 260px at 90% 120%, rgba(34,211,238,.2), transparent 62%),
  linear-gradient(135deg,rgba(20,28,64,.95),rgba(11,16,38,.95));
 box-shadow:var(--shadow);
 display:grid;grid-template-columns:minmax(0,1fr) auto;gap:26px;align-items:center;
}
.cta-band h2{font-size:clamp(20px,2.6vw,28px);margin-bottom:10px;}
.cta-band p{color:var(--muted);margin:0;font-size:15px;max-width:620px;}
.cta-actions{display:flex;flex-wrap:wrap;gap:12px;}
/* ===== footer ===== */
.site-footer{
 border-top:1px solid var(--line);
 background:linear-gradient(180deg,rgba(255,255,255,.035),rgba(0,0,0,.4));
 padding:56px 0 26px;margin-top:10px;
}
.footer-cols{row-gap:30px;}
.footer-brand p{color:var(--muted);font-size:14px;margin:16px 0 0;line-height:1.9;max-width:430px;}
.footer-col h4{font-size:13.5px;letter-spacing:1.8px;color:var(--gold-2);margin-bottom:14px;}
.footer-col ul li{margin-bottom:9px;}
.footer-col ul li a{font-size:14px;color:var(--muted);}
.footer-col ul li a:hover{color:#fff;}
.footer-note{font-size:13px;color:var(--muted);line-height:1.85;margin:0;}
.footer-bottom{
 display:flex;flex-wrap:wrap;gap:10px 20px;justify-content:space-between;
 border-top:1px solid var(--line);margin-top:36px;padding-top:20px;
 font-size:12.5px;color:var(--muted);
}
/* ===== responsive ===== */
@media (max-width:1024px){
 .head-grid{grid-template-columns:minmax(0,1fr) 300px;}
 .kp-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
 .flow-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
 .cta-band{grid-template-columns:1fr;}
}
@media (max-width:860px){
 .nav-toggle{display:inline-flex;}
 .brand-meta{display:none;}
 .nav-grid{
  display:none;grid-template-columns:repeat(2,minmax(0,1fr));gap:8px;
  padding:12px 0 16px;border-top:1px solid var(--line);margin-top:6px;
 }
 .nav-grid.is-open{display:grid;}
 .head-grid{grid-template-columns:1fr;}
 .head-cover{transform:none;}
 .head-cover img{height:220px;}
 .cta-actions{width:100%;}
}
@media (max-width:640px){
 .section{padding:46px 0;}
 .grid-container{padding-left:16px;padding-right:16px;}
 .brand-text strong{font-size:17px;}
 .brand-text em{font-size:11px;}
 .nav-grid{grid-template-columns:1fr;}
 .kp-grid{grid-template-columns:1fr;}
 .flow-grid{grid-template-columns:1fr;}
 .head-main h1{font-size:24px;}
 .prose{font-size:15.8px;}
 .prose-card{padding:20px 16px;}
 .article-head{padding-top:20px;}
 .faq-answer{padding-left:20px;}
 .footer-bottom{flex-direction:column;gap:8px;}
 .cta-band{padding:26px 20px;}
}

/* roulang page: category2 */
:root{
 --bg:#070a18;
 --bg-2:#0a0f24;
 --panel:#101736;
 --panel-2:#141c40;
 --ink:#e9eeff;
 --muted:#95a1c9;
 --gold:#ffb400;
 --gold-2:#ffd873;
 --cyan:#22d3ee;
 --violet:#6d5cff;
 --line:rgba(140,160,220,.16);
 --line-2:rgba(140,160,220,.28);
 --glass:rgba(255,255,255,.045);
 --glass-2:rgba(255,255,255,.075);
 --radius:18px;
 --radius-sm:12px;
 --shadow:0 22px 48px -26px rgba(0,0,0,.95);
 --glow:0 0 0 1px rgba(255,180,0,.4), 0 16px 38px -16px rgba(255,180,0,.65);
 --maxw:1180px;
 --step:clamp(52px,6vw,88px);
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
 margin:0;
 font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Source Han Sans SC",system-ui,-apple-system,"Helvetica Neue",Arial,sans-serif;
 color:var(--ink);
 background:
 radial-gradient(1100px 560px at 10% -8%, rgba(109,92,255,.30), transparent 62%),
 radial-gradient(900px 480px at 92% -4%, rgba(34,211,238,.18), transparent 58%),
 radial-gradient(800px 600px at 50% 118%, rgba(255,180,0,.10), transparent 60%),
 var(--bg);
 font-size:16px;
 line-height:1.75;
 letter-spacing:.2px;
 min-height:100vh;
}
h1,h2,h3,h4,h5{color:var(--ink);font-weight:800;letter-spacing:.5px;line-height:1.32;margin:0 0 .6em;}
p{margin:0 0 1em;}
ul,ol{list-style:none;margin:0;padding:0;}
img{max-width:100%;display:block;height:auto;}
a{color:inherit;text-decoration:none;transition:color .2s ease,opacity .2s ease;}
a:hover{color:var(--gold-2);}
button{font-family:inherit;}
input,select,textarea{font-family:inherit;}
:focus-visible{outline:2px solid var(--gold);outline-offset:3px;}
.grid-container{width:100%;max-width:var(--maxw);margin-left:auto;margin-right:auto;padding-left:20px;padding-right:20px;}
.section{padding:var(--step) 0;position:relative;}
.section--alt{background:linear-gradient(180deg,rgba(255,255,255,.035),rgba(255,255,255,0) 72%);border-top:1px solid var(--line);border-bottom:1px solid var(--line);}
.section-head{max-width:760px;margin-bottom:36px;}
.section-head.center{margin-left:auto;margin-right:auto;text-align:center;}
.section-head .section-sub{margin-bottom:0;}
.eyebrow{
 display:inline-flex;align-items:center;gap:8px;
 font-size:13px;font-weight:700;letter-spacing:2px;
 color:var(--cyan);
 padding:6px 12px;border-radius:999px;
 background:rgba(34,211,238,.10);border:1px solid rgba(34,211,238,.28);
 margin-bottom:16px;
}
.eyebrow::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--cyan);box-shadow:0 0 12px var(--cyan);}
.section-title{font-size:clamp(24px,3.1vw,36px);margin-bottom:14px;}
.section-sub{color:var(--muted);font-size:15.5px;}
.btn{
 display:inline-flex;align-items:center;justify-content:center;gap:8px;
 padding:13px 26px;border-radius:999px;border:0;cursor:pointer;
 font-size:15px;font-weight:700;letter-spacing:.6px;
 transition:transform .2s ease,box-shadow .25s ease,background .25s ease,color .2s ease,border-color .2s ease;
 white-space:nowrap;
}
.btn-gold{background:linear-gradient(135deg,var(--gold) 0%,var(--gold-2) 100%);color:#20160a;box-shadow:var(--glow);}
.btn-gold:hover{transform:translateY(-2px);color:#1a1206;box-shadow:0 0 0 1px rgba(255,180,0,.6),0 22px 46px -16px rgba(255,180,0,.85);}
.btn-ghost{background:var(--glass);color:var(--ink);border:1px solid var(--line-2);backdrop-filter:blur(8px);}
.btn-ghost:hover{background:var(--glass-2);color:#fff;transform:translateY(-2px);border-color:rgba(34,211,238,.5);}
.btn:active{transform:translateY(0) scale(.99);}
.tag{
 display:inline-flex;align-items:center;
 font-size:12.5px;font-weight:700;color:var(--gold-2);
 background:rgba(255,180,0,.10);border:1px solid rgba(255,180,0,.28);
 padding:4px 11px;border-radius:999px;letter-spacing:.5px;
}
.tag--cyan{color:#a9f0ff;background:rgba(34,211,238,.10);border-color:rgba(34,211,238,.3);}
.tag--violet{color:#cfc7ff;background:rgba(109,92,255,.14);border-color:rgba(109,92,255,.34);}
/* header */
.site-header{
 position:sticky;top:0;z-index:60;
 background:rgba(8,12,30,.82);
 backdrop-filter:blur(18px);
 border-bottom:1px solid var(--line);
 box-shadow:0 12px 34px -24px rgba(0,0,0,.95);
}
.brand-row{display:flex;align-items:center;justify-content:space-between;gap:18px;padding:16px 0 10px;}
.brand{display:inline-flex;align-items:center;gap:12px;}
.brand-mark{
 width:44px;height:44px;border-radius:14px;
 display:grid;place-items:center;
 font-size:20px;font-weight:800;color:#1a1206;
 background:linear-gradient(135deg,var(--gold),var(--gold-2));
 box-shadow:0 10px 26px -12px rgba(255,180,0,.9);
 flex:0 0 auto;
}
.brand-text{display:flex;flex-direction:column;line-height:1.2;}
.brand-text strong{font-size:19px;letter-spacing:1.4px;color:#fff;}
.brand-text em{font-style:normal;font-size:12px;color:var(--muted);letter-spacing:1px;}
.brand-meta{font-size:12.5px;color:var(--muted);letter-spacing:.6px;padding:7px 14px;border-radius:999px;border:1px solid var(--line);background:var(--glass);white-space:nowrap;}
.brand-meta b{color:var(--gold-2);font-weight:800;}
.nav-toggle{display:none;align-items:center;gap:8px;padding:10px 18px;border-radius:999px;cursor:pointer;background:var(--glass);border:1px solid var(--line-2);color:var(--ink);font-size:14px;font-weight:700;}
.nav-toggle:hover{background:var(--glass-2);}
.nav-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:10px;padding:8px 0 16px;}
.nav-item{
 display:flex;align-items:center;gap:11px;
 padding:11px 14px;border-radius:14px;
 background:var(--glass);border:1px solid var(--line);
 font-size:14.5px;font-weight:700;letter-spacing:.6px;color:#d7defa;
 transition:transform .2s ease,background .2s ease,border-color .2s ease,box-shadow .25s ease;
}
.nav-ico{width:32px;height:32px;flex:0 0 auto;border-radius:10px;display:grid;place-items:center;background:rgba(109,92,255,.16);border:1px solid rgba(109,92,255,.32);color:#cfc7ff;}
.nav-ico svg{width:17px;height:17px;}
.nav-item:hover{transform:translateY(-2px);background:var(--glass-2);border-color:rgba(34,211,238,.45);color:#fff;box-shadow:0 14px 30px -18px rgba(34,211,238,.8);}
.nav-item.is-active{background:linear-gradient(135deg,rgba(255,180,0,.16),rgba(255,180,0,.05));border-color:rgba(255,180,0,.55);color:#fff;box-shadow:0 0 0 1px rgba(255,180,0,.18) inset,0 16px 32px -20px rgba(255,180,0,.9);}
.nav-item.is-active .nav-ico{background:rgba(255,180,0,.18);border-color:rgba(255,180,0,.5);color:var(--gold-2);}
/* hero */
.hero{position:relative;overflow:hidden;padding:clamp(40px,5vw,72px) 0 var(--step);}
.hero-bg{position:absolute;inset:0;z-index:0;background:url("/assets/images/红中_九江麻将.webp") center/cover no-repeat;opacity:.22;}
.hero-bg::after{content:"";position:absolute;inset:0;background:linear-gradient(120deg,rgba(7,10,24,.97) 8%,rgba(7,10,24,.80) 52%,rgba(7,10,24,.96) 100%);}
.hero .grid-container{position:relative;z-index:1;}
.hero-row{row-gap:30px;}
.hero h1{font-size:clamp(30px,4.4vw,50px);letter-spacing:1px;margin-bottom:18px;}
.hero h1 span{display:block;font-size:clamp(22px,2.8vw,30px);font-weight:700;color:var(--gold-2);letter-spacing:2px;margin-top:10px;}
.hero-lead{color:#c2cbeb;font-size:16px;max-width:600px;}
.hero-tags{display:flex;flex-wrap:wrap;gap:10px;margin:22px 0 26px;}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;}
.hero-panel{
 padding:24px;border-radius:22px;
 background:linear-gradient(165deg,rgba(255,255,255,.09),rgba(255,255,255,.025));
 border:1px solid var(--line-2);
 backdrop-filter:blur(16px);
 box-shadow:var(--shadow);
}
.panel-head{display:flex;align-items:center;justify-content:space-between;gap:12px;font-size:13.5px;letter-spacing:1px;color:var(--muted);margin-bottom:18px;}
.panel-head strong{color:#fff;font-size:14.5px;letter-spacing:1.2px;}
.ring-wrap{display:flex;align-items:center;gap:20px;flex-wrap:wrap;}
.ring{
 width:152px;height:152px;flex:0 0 auto;border-radius:50%;position:relative;display:grid;place-items:center;
 background:conic-gradient(from -90deg,var(--gold) 0 calc(var(--p) * 1%),rgba(255,255,255,.07) calc(var(--p) * 1%) 100%);
 box-shadow:0 0 0 1px rgba(255,180,0,.2),0 26px 52px -30px rgba(255,180,0,.85);
}
.ring::before{content:"";position:absolute;inset:11px;border-radius:50%;background:linear-gradient(160deg,#121a3c,#0a1024);border:1px solid var(--line);}
.ring-inner{position:relative;text-align:center;}
.ring-num{font-size:32px;font-weight:900;color:#fff;line-height:1;letter-spacing:-1px;}
.ring-num small{font-size:14px;color:var(--gold-2);font-weight:800;margin-left:2px;}
.ring-label{display:block;font-size:12px;color:var(--muted);letter-spacing:1.4px;margin-top:8px;}
.ring-side{flex:1 1 150px;min-width:150px;}
.ring-side p{font-size:13.5px;color:var(--muted);margin:0 0 10px;}
.ring-side b{color:var(--gold-2);}
.tier-list{margin-top:18px;}
.tier{display:flex;align-items:center;gap:10px;padding:10px 13px;border-radius:13px;background:rgba(255,255,255,.04);border:1px solid var(--line);font-size:13.5px;}
.tier + .tier{margin-top:9px;}
.tier-dot{width:8px;height:8px;border-radius:50%;background:var(--gold);box-shadow:0 0 10px var(--gold);flex:0 0 auto;}
.tier em{font-style:normal;color:#dfe6ff;font-weight:700;}
.tier span{margin-left:auto;color:var(--gold-2);font-weight:800;font-size:12.5px;white-space:nowrap;}
.panel-actions{display:flex;flex-wrap:wrap;gap:10px;margin-top:18px;}
.panel-actions .btn{padding:11px 20px;font-size:14px;}
/* metrics */
.metrics{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:16px;}
.metric{padding:22px;border-radius:var(--radius);background:linear-gradient(160deg,var(--panel-2),var(--panel));border:1px solid var(--line);box-shadow:var(--shadow);transition:transform .25s ease,border-color .25s ease;}
.metric:hover{transform:translateY(-4px);border-color:rgba(34,211,238,.42);}
.metric-num{font-size:clamp(26px,3vw,34px);font-weight:900;color:#fff;line-height:1.1;}
.metric-num i{font-style:normal;font-size:15px;color:var(--gold-2);margin-left:5px;font-weight:800;}
.metric p{font-size:13.5px;color:var(--muted);margin:8px 0 0;}
/* matrix */
.matrix{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:18px;}
.fan-card{
 padding:24px;border-radius:var(--radius);
 background:var(--glass);border:1px solid var(--line);
 backdrop-filter:blur(10px);
 transition:transform .25s ease,border-color .25s ease,box-shadow .25s ease,background .25s ease;
}
.fan-card:hover{transform:translateY(-4px);border-color:rgba(34,211,238,.42);background:var(--glass-2);box-shadow:0 26px 54px -30px rgba(34,211,238,.6);}
.fan-card-head{display:flex;align-items:center;gap:12px;margin-bottom:14px;}
.fan-card-head h3{font-size:19px;margin:0;}
.fan-count{margin-left:auto;font-size:12.5px;font-weight:800;color:var(--gold-2);white-space:nowrap;}
.fan-list li{position:relative;padding-left:16px;font-size:14px;color:#c6cfef;margin-top:8px;}
.fan-list li::before{content:"";position:absolute;left:0;top:.68em;width:6px;height:6px;border-radius:2px;background:var(--cyan);box-shadow:0 0 8px var(--cyan);}
.fan-list li b{color:#fff;font-weight:700;}
/* compare */
.compare-wrap{display:grid;grid-template-columns:1.05fr .95fr;gap:38px;align-items:center;}
.bars{display:grid;gap:15px;}
.bar-row{display:grid;grid-template-columns:110px 1fr 66px;align-items:center;gap:12px;font-size:13.5px;color:#c6cfef;}
.bar-track{height:10px;border-radius:999px;background:rgba(255,255,255,.07);overflow:hidden;}
.bar-fill{height:100%;border-radius:999px;background:linear-gradient(90deg,var(--violet),var(--cyan));box-shadow:0 0 16px rgba(34,211,238,.5);transition:width .6s ease;}
.bar-fill--gold{background:linear-gradient(90deg,#ff8a00,var(--gold-2));box-shadow:0 0 18px rgba(255,180,0,.55);}
.bar-val{text-align:right;font-weight:800;color:var(--gold-2);}
.compare-note{padding:22px;border-radius:var(--radius);background:linear-gradient(150deg,rgba(109,92,255,.16),rgba(255,255,255,.02));border:1px solid var(--line);}
.compare-note h3{font-size:18px;margin-bottom:12px;}
.compare-note li{position:relative;padding-left:18px;font-size:14px;color:#c6cfef;margin-bottom:10px;}
.compare-note li::before{content:"·";position:absolute;left:4px;top:0;color:var(--gold);font-weight:900;}
/* scenes */
.scene-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:18px;}
.scene{padding:22px;border-radius:var(--radius);border:1px solid var(--line);background:linear-gradient(150deg,rgba(109,92,255,.14),rgba(255,255,255,.02));transition:transform .25s ease,border-color .25s ease;}
.scene:hover{transform:translateY(-3px);border-color:rgba(255,180,0,.42);}
.scene h3{font-size:18px;display:flex;align-items:center;gap:10px;}
.scene p{font-size:14px;color:#c1cbea;margin-bottom:.7em;}
.scene p:last-child{margin-bottom:0;}
.scene p b{color:var(--gold-2);}
/* split figure */
.split{display:grid;grid-template-columns:1fr 1fr;gap:38px;align-items:center;}
.split h2{font-size:clamp(24px,3vw,34px);}
.split p{color:var(--muted);font-size:15px;}
.check-list{margin-top:20px;}
.check-list li{display:flex;gap:12px;padding:13px 0;border-top:1px solid var(--line);font-size:14.5px;color:#c8d1ef;}
.check-list li:first-child{border-top:0;}
.check-list li b{color:#fff;white-space:nowrap;}
.check-list li span{color:var(--muted);}
.figure{margin:0;border-radius:var(--radius);overflow:hidden;border:1px solid var(--line-2);box-shadow:var(--shadow);background:var(--panel);}
.figure img{width:100%;aspect-ratio:4/3;object-fit:cover;}
.figure figcaption{padding:12px 16px;font-size:12.5px;color:var(--muted);border-top:1px solid var(--line);letter-spacing:.6px;}
/* timeline */
.timeline{margin-left:8px;padding-left:26px;border-left:1px solid var(--line-2);display:grid;gap:24px;}
.tl-item{position:relative;}
.tl-item::before{content:"";position:absolute;left:-32px;top:7px;width:11px;height:11px;border-radius:50%;background:var(--gold);box-shadow:0 0 0 4px rgba(255,180,0,.16);}
.tl-item h3{font-size:16.5px;margin-bottom:6px;}
.tl-item h3 em{font-style:normal;font-size:12.5px;color:var(--cyan);letter-spacing:1.4px;margin-right:10px;}
.tl-item p{margin:0;color:var(--muted);font-size:14px;}
/* solver */
.solver{display:grid;grid-template-columns:1.05fr .95fr;gap:32px;align-items:start;}
.form-card{padding:26px;border-radius:var(--radius);background:linear-gradient(160deg,var(--panel-2),rgba(10,15,36,.92));border:1px solid var(--line-2);box-shadow:var(--shadow);}
.field{margin-bottom:16px;}
.field label{display:block;font-size:13px;letter-spacing:.8px;color:var(--muted);margin-bottom:7px;font-weight:700;}
.field input,.field select,.field textarea{
 width:100%;padding:12px 14px;border-radius:12px;
 background:rgba(255,255,255,.05);border:1px solid var(--line-2);
 color:var(--ink);font-size:14.5px;
 transition:border-color .2s ease,box-shadow .2s ease,background .2s ease;
}
.field textarea{min-height:96px;resize:vertical;}
.field input::placeholder,.field textarea::placeholder{color:#7d89b1;}
.field input:focus,.field select:focus,.field textarea:focus{outline:none;border-color:rgba(255,180,0,.7);box-shadow:0 0 0 3px rgba(255,180,0,.16);background:rgba(255,255,255,.08);}
.field select option{background:#0c1230;color:#e9eeff;}
.form-hint{font-size:12.5px;color:var(--muted);margin:10px 0 0;}
.form-msg{display:none;margin-top:14px;padding:12px 14px;border-radius:12px;font-size:13.5px;color:var(--gold-2);background:rgba(255,180,0,.10);border:1px solid rgba(255,180,0,.32);}
.form-msg.show{display:block;}
.process{display:grid;gap:14px;}
.process-item{display:flex;gap:14px;padding:18px;border-radius:var(--radius-sm);background:var(--glass);border:1px solid var(--line);}
.process-num{width:34px;height:34px;flex:0 0 auto;border-radius:10px;display:grid;place-items:center;font-weight:900;color:#20160a;background:linear-gradient(135deg,var(--gold),var(--gold-2));font-size:15px;}
.process-item h4{font-size:15.5px;margin:0 0 4px;}
.process-item p{font-size:13.5px;color:var(--muted);margin:0;}
/* faq */
.faq{display:grid;gap:12px;max-width:880px;}
.faq details{border-radius:14px;border:1px solid var(--line);background:var(--glass);padding:0 20px;transition:border-color .2s ease,background .2s ease;}
.faq details[open]{border-color:rgba(255,180,0,.45);background:rgba(255,180,0,.055);}
.faq summary{list-style:none;cursor:pointer;padding:16px 0;font-weight:700;font-size:15.5px;display:flex;align-items:center;gap:12px;color:#eef2ff;}
.faq summary::-webkit-details-marker{display:none;}
.faq summary::after{content:"+";margin-left:auto;color:var(--gold);font-size:20px;line-height:1;font-weight:700;}
.faq details[open] summary::after{content:"–";}
.faq details p{color:var(--muted);font-size:14.5px;margin:0;padding:0 0 16px;}
/* cta band */
.cta-band{
 padding:clamp(32px,4.4vw,56px);
 border-radius:24px;
 background:radial-gradient(620px 240px at 10% 0%,rgba(109,92,255,.42),transparent 70%),linear-gradient(135deg,#141c40,#0a1024);
 border:1px solid rgba(255,180,0,.35);
 box-shadow:0 30px 60px -34px rgba(255,180,0,.5);
 display:flex;flex-wrap:wrap;gap:24px;align-items:center;justify-content:space-between;
}
.cta-band h2{font-size:clamp(22px,2.8vw,30px);margin-bottom:10px;}
.cta-band p{color:var(--muted);font-size:14.5px;margin:0;max-width:560px;}
.cta-actions{display:flex;flex-wrap:wrap;gap:12px;}
/* footer */
.site-footer{margin-top:var(--step);background:linear-gradient(180deg,rgba(10,15,36,.55),rgba(7,10,24,.98));border-top:1px solid var(--line);padding:clamp(40px,5vw,64px) 0 26px;}
.footer-cols{row-gap:28px;}
.footer-brand .brand{margin-bottom:14px;}
.footer-brand p{color:var(--muted);font-size:14px;max-width:430px;margin:0;}
.footer-col h4{font-size:14px;letter-spacing:2px;color:#fff;margin-bottom:14px;position:relative;padding-bottom:8px;}
.footer-col h4::after{content:"";position:absolute;left:0;bottom:0;width:26px;height:2px;border-radius:2px;background:linear-gradient(90deg,var(--gold),transparent);}
.footer-col ul li{margin-bottom:9px;}
.footer-col a{color:var(--muted);font-size:14px;}
.footer-col a:hover{color:var(--gold-2);}
.footer-note{color:var(--muted);font-size:13px;line-height:1.85;margin:0;}
.footer-bottom{margin-top:32px;padding-top:18px;border-top:1px solid var(--line);display:flex;flex-wrap:wrap;gap:10px;justify-content:space-between;color:#7f8cb5;font-size:12.5px;letter-spacing:.4px;}
@media (max-width:1024px){
 .nav-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
 .brand-meta{display:none;}
 .metrics{grid-template-columns:repeat(2,minmax(0,1fr));}
 .compare-wrap,.split,.solver{grid-template-columns:1fr;gap:26px;}
 .hero-lead{max-width:none;}
}
@media (max-width:768px){
 .nav-toggle{display:inline-flex;}
 .nav-grid{display:none;grid-template-columns:1fr;}
 .nav-grid.is-open{display:grid;}
 .matrix,.scene-grid{grid-template-columns:1fr;}
 .hero-panel{padding:20px;}
 .ring{width:132px;height:132px;}
 .cta-band{padding:26px;}
 .footer-bottom{flex-direction:column;}
 .bar-row{grid-template-columns:90px 1fr 58px;font-size:13px;}
}
@media (max-width:520px){
 .metrics{grid-template-columns:1fr;}
 .hero-actions .btn,.panel-actions .btn,.cta-actions .btn{width:100%;}
 .brand-text strong{font-size:17px;}
 .brand-text em{font-size:11px;}
 .ring-wrap{gap:14px;}
 .section{border-radius:0;}
 .fan-card,.metric,.scene{padding:18px;}
 .bar-row{grid-template-columns:1fr;gap:6px;}
 .bar-val{text-align:left;}
}

/* roulang page: category3 */
:root{
 --bg:#070a18;
 --bg-2:#0a0f24;
 --panel:#101736;
 --panel-2:#141c40;
 --ink:#e9eeff;
 --muted:#95a1c9;
 --gold:#ffb400;
 --gold-2:#ffd873;
 --cyan:#22d3ee;
 --violet:#6d5cff;
 --line:rgba(140,160,220,.16);
 --line-2:rgba(140,160,220,.28);
 --glass:rgba(255,255,255,.045);
 --glass-2:rgba(255,255,255,.075);
 --radius:18px;
 --radius-sm:12px;
 --shadow:0 22px 48px -26px rgba(0,0,0,.95);
 --glow:0 0 0 1px rgba(255,180,0,.4), 0 16px 38px -16px rgba(255,180,0,.65);
 --maxw:1180px;
 --step:clamp(56px,6.5vw,92px);
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
 margin:0;
 font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Source Han Sans SC",system-ui,-apple-system,"Helvetica Neue",Arial,sans-serif;
 color:var(--ink);
 background:
 radial-gradient(1100px 560px at 10% -8%, rgba(109,92,255,.30), transparent 62%),
 radial-gradient(900px 480px at 92% -4%, rgba(34,211,238,.18), transparent 58%),
 radial-gradient(800px 600px at 50% 118%, rgba(255,180,0,.10), transparent 60%),
 var(--bg);
 font-size:16px;
 line-height:1.75;
 letter-spacing:.2px;
 min-height:100vh;
}
img{max-width:100%;display:block;height:auto;}
a{color:inherit;text-decoration:none;transition:color .2s ease,opacity .2s ease;}
a:hover{color:var(--gold-2);}
a:focus-visible,button:focus-visible,summary:focus-visible,input:focus-visible,textarea:focus-visible,select:focus-visible{outline:2px solid var(--cyan);outline-offset:3px;}
button{font-family:inherit;}
h1,h2,h3,h4{margin:0 0 12px;line-height:1.3;font-weight:800;letter-spacing:.5px;color:#fff;}
h1{font-size:clamp(30px,4.4vw,50px);}
h2{font-size:clamp(23px,3vw,34px);}
h3{font-size:18px;}
p{margin:0 0 14px;}
ul{margin:0;padding:0;list-style:none;}
.grid-container{max-width:var(--maxw);margin-left:auto;margin-right:auto;padding-left:20px;padding-right:20px;width:100%;}
.section{padding:var(--step) 0;position:relative;}
.section--alt{background:linear-gradient(180deg,rgba(255,255,255,.03),rgba(255,255,255,0) 70%);border-top:1px solid var(--line);border-bottom:1px solid var(--line);}
.section-head{max-width:780px;margin-bottom:38px;}
.section-head.center{margin-left:auto;margin-right:auto;text-align:center;}
.section-title{font-size:clamp(23px,3vw,34px);}
.section-sub{color:var(--muted);font-size:15.5px;margin:0;}
.eyebrow{
 display:inline-flex;align-items:center;gap:8px;
 font-size:13px;font-weight:700;letter-spacing:2px;
 color:var(--cyan);
 padding:6px 12px;border-radius:999px;
 background:rgba(34,211,238,.10);border:1px solid rgba(34,211,238,.28);
 margin-bottom:16px;
}
.eyebrow::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--cyan);box-shadow:0 0 12px var(--cyan);}
.btn{
 display:inline-flex;align-items:center;justify-content:center;gap:8px;
 padding:13px 26px;border-radius:999px;border:0;cursor:pointer;
 font-size:15px;font-weight:700;letter-spacing:.6px;
 transition:transform .2s ease,box-shadow .25s ease,background .25s ease,color .2s ease;
 white-space:nowrap;
}
.btn-gold{background:linear-gradient(135deg,var(--gold) 0%,var(--gold-2) 100%);color:#20160a;box-shadow:var(--glow);}
.btn-gold:hover{transform:translateY(-2px);color:#1a1206;box-shadow:0 0 0 1px rgba(255,180,0,.6),0 22px 46px -16px rgba(255,180,0,.85);}
.btn-ghost{background:var(--glass);color:var(--ink);border:1px solid var(--line-2);backdrop-filter:blur(8px);}
.btn-ghost:hover{background:var(--glass-2);color:#fff;transform:translateY(-2px);border-color:rgba(34,211,238,.5);}
.btn:active{transform:translateY(0) scale(.99);}
.tag{
 display:inline-flex;align-items:center;
 font-size:12.5px;font-weight:700;color:var(--gold-2);
 background:rgba(255,180,0,.10);border:1px solid rgba(255,180,0,.28);
 padding:4px 11px;border-radius:999px;letter-spacing:.5px;
}
.tag--cyan{color:#a9f0ff;background:rgba(34,211,238,.10);border-color:rgba(34,211,238,.3);}
.tag--violet{color:#cfc7ff;background:rgba(109,92,255,.14);border-color:rgba(109,92,255,.34);}
/* ===== header ===== */
.site-header{
 position:sticky;top:0;z-index:60;
 background:rgba(8,12,30,.82);
 backdrop-filter:blur(18px);
 border-bottom:1px solid var(--line);
 box-shadow:0 12px 34px -24px rgba(0,0,0,.95);
}
.brand-row{display:flex;align-items:center;justify-content:space-between;gap:18px;padding:16px 0 10px;}
.brand{display:inline-flex;align-items:center;gap:12px;}
.brand-mark{
 width:44px;height:44px;border-radius:14px;
 display:grid;place-items:center;
 font-size:20px;font-weight:800;color:#1a1206;
 background:linear-gradient(135deg,var(--gold),var(--gold-2));
 box-shadow:0 10px 26px -12px rgba(255,180,0,.9);
 flex:0 0 auto;
}
.brand-text{display:flex;flex-direction:column;line-height:1.2;}
.brand-text strong{font-size:19px;letter-spacing:1.4px;color:#fff;}
.brand-text em{font-style:normal;font-size:12px;color:var(--muted);letter-spacing:1px;}
.brand-meta{
 font-size:12.5px;color:var(--muted);letter-spacing:.6px;
 padding:7px 14px;border-radius:999px;
 border:1px solid var(--line);background:var(--glass);
 white-space:nowrap;
}
.brand-meta b{color:var(--gold-2);font-weight:800;}
.nav-toggle{
 display:none;align-items:center;gap:8px;
 padding:10px 18px;border-radius:999px;cursor:pointer;
 background:var(--glass);border:1px solid var(--line-2);color:var(--ink);
 font-size:14px;font-weight:700;
}
.nav-toggle:hover{background:var(--glass-2);}
.nav-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:10px;padding:8px 0 16px;}
.nav-item{
 display:flex;align-items:center;gap:11px;
 padding:11px 14px;border-radius:14px;
 background:var(--glass);border:1px solid var(--line);
 font-size:14.5px;font-weight:700;letter-spacing:.6px;color:#d7defa;
 transition:transform .2s ease,background .2s ease,border-color .2s ease,box-shadow .25s ease;
}
.nav-ico{
 width:32px;height:32px;flex:0 0 auto;border-radius:10px;
 display:grid;place-items:center;
 background:rgba(109,92,255,.16);border:1px solid rgba(109,92,255,.32);
 color:#cfc7ff;
}
.nav-ico svg{width:17px;height:17px;}
.nav-item:hover{transform:translateY(-2px);background:var(--glass-2);border-color:rgba(34,211,238,.45);color:#fff;box-shadow:0 14px 30px -18px rgba(34,211,238,.8);}
.nav-item.is-active{
 background:linear-gradient(135deg,rgba(255,180,0,.16),rgba(255,180,0,.05));
 border-color:rgba(255,180,0,.55);color:#fff;
 box-shadow:0 0 0 1px rgba(255,180,0,.18) inset,0 16px 32px -20px rgba(255,180,0,.9);
}
.nav-item.is-active .nav-ico{background:rgba(255,180,0,.18);border-color:rgba(255,180,0,.5);color:var(--gold-2);}
/* ===== hero ===== */
.page-hero{position:relative;overflow:hidden;padding:clamp(52px,6vw,92px) 0 clamp(66px,7vw,104px);}
.page-hero::before{
 content:"";position:absolute;inset:0;z-index:0;
 background:linear-gradient(118deg,#1a1f3d 0%,#1a1f3d 48%,#101736 100%);
 clip-path:polygon(0 0,100% 0,100% 84%,0 100%);
}
.page-hero::after{
 content:"";position:absolute;inset:0;z-index:0;
 background-image:url('/assets/images/麻将的基础概念-搜狐大视野-搜狐新闻.webp');
 background-size:cover;background-position:center;
 opacity:.17;
 clip-path:polygon(0 0,100% 0,100% 84%,0 100%);
 filter:saturate(.8);
}
.hero-inner{
 position:relative;z-index:2;
 display:grid;grid-template-columns:minmax(0,1.15fr) minmax(0,.85fr);
 gap:42px;align-items:center;
}
.hero-title{margin-bottom:18px;text-shadow:0 14px 34px rgba(0,0,0,.55);}
.hero-title span{color:var(--gold-2);}
.hero-lead{font-size:16.5px;color:#c6d0ee;max-width:620px;margin-bottom:26px;}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;align-items:center;}
.hero-hint{font-size:13px;color:var(--muted);letter-spacing:.4px;}
.hero-panel{
 padding:26px;border-radius:22px;
 background:linear-gradient(160deg,rgba(255,255,255,.10),rgba(255,255,255,.025));
 border:1px solid var(--line-2);
 box-shadow:var(--shadow);
 backdrop-filter:blur(16px);
}
.panel-top{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-bottom:16px;}
.panel-meta{font-size:12.5px;color:var(--muted);letter-spacing:.6px;}
.hero-panel h2{font-size:19px;margin-bottom:16px;color:#fff;}
.panel-list{display:grid;gap:10px;margin-bottom:16px;}
.panel-list li{
 display:flex;align-items:center;justify-content:space-between;gap:14px;
 padding:11px 14px;border-radius:12px;
 background:rgba(10,15,36,.55);border:1px solid var(--line);
 font-size:13.5px;color:var(--muted);
}
.panel-list li b{color:var(--gold-2);font-size:13.5px;letter-spacing:.4px;}
.panel-note{margin:0;font-size:13.5px;color:#c6d0ee;border-left:2px solid var(--gold);padding-left:12px;}
/* ===== 指标看板 ===== */
.stat-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:16px;}
.stat{
 padding:24px 22px;border-radius:var(--radius);
 background:linear-gradient(165deg,rgba(255,255,255,.075),rgba(255,255,255,.02));
 border:1px solid var(--line);
 box-shadow:var(--shadow);
 backdrop-filter:blur(10px);
 transition:transform .25s ease,border-color .25s ease;
}
.stat:hover{transform:translateY(-3px);border-color:rgba(34,211,238,.42);}
.stat b{display:block;font-size:34px;line-height:1.1;color:var(--gold-2);letter-spacing:1px;margin-bottom:6px;}
.stat span{display:block;font-size:14px;color:var(--muted);}
.lede-band{
 margin-top:24px;padding:20px 24px;border-radius:var(--radius);
 border:1px solid var(--line);background:rgba(10,15,36,.6);
 font-size:14.5px;color:#c6d0ee;
}
/* ===== 场景矩阵 ===== */
.card-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:18px;}
.scene-card{
 position:relative;padding:24px;border-radius:var(--radius);
 background:linear-gradient(170deg,rgba(255,255,255,.065),rgba(255,255,255,.015));
 border:1px solid var(--line);
 box-shadow:var(--shadow);
 transition:transform .25s ease,border-color .25s ease,box-shadow .25s ease;
}
.scene-card:hover{transform:translateY(-4px);border-color:rgba(34,211,238,.42);box-shadow:0 26px 52px -26px rgba(34,211,238,.6);}
.scene-card h3{margin:14px 0 10px;}
.scene-card p{margin:0;font-size:14.5px;color:var(--muted);}
.scene-index{
 position:absolute;top:18px;right:22px;
 font-size:13px;font-weight:800;letter-spacing:1px;color:rgba(255,180,0,.5);
}
/* ===== 对照 ===== */
.compare-grid{display:grid;grid-template-columns:1fr 1fr;gap:20px;}
.compare-card{padding:26px;border-radius:var(--radius);border:1px solid var(--line);background:rgba(10,15,36,.62);}
.compare-card.weak{border-color:rgba(109,92,255,.42);background:linear-gradient(170deg,rgba(109,92,255,.16),rgba(10,15,36,.7));}
.compare-card.strong{border-color:rgba(255,180,0,.42);background:linear-gradient(170deg,rgba(255,180,0,.14),rgba(10,15,36,.7));}
.compare-card h3{display:flex;align-items:center;gap:10px;}
.check-list{display:grid;gap:12px;margin-top:8px;}
.check-list li{
 display:flex;gap:11px;align-items:flex-start;
 font-size:14.5px;color:#c6d0ee;
 padding-bottom:12px;border-bottom:1px dashed rgba(140,160,220,.18);
}
.check-list li:last-child{border-bottom:0;padding-bottom:0;}
.dot{
 flex:0 0 auto;width:8px;height:8px;border-radius:50%;margin-top:9px;
 background:var(--cyan);box-shadow:0 0 10px rgba(34,211,238,.9);
}
.compare-card.strong .dot{background:var(--gold);box-shadow:0 0 10px rgba(255,180,0,.9);}
/* ===== 进阶路径 ===== */
.path-wrap{display:grid;grid-template-columns:minmax(0,.9fr) minmax(0,1.1fr);gap:38px;align-items:start;}
.path-list{position:relative;padding-left:28px;border-left:2px solid rgba(140,160,220,.22);display:grid;gap:26px;}
.path-step{position:relative;}
.path-step::before{
 content:"";position:absolute;left:-36px;top:6px;
 width:14px;height:14px;border-radius:50%;
 background:var(--gold);box-shadow:0 0 0 4px rgba(255,180,0,.14),0 0 16px rgba(255,180,0,.8);
}
.path-step h3{font-size:17px;margin-bottom:6px;}
.path-step p{margin:0;font-size:14.5px;color:var(--muted);}
.path-aside{
 padding:26px;border-radius:var(--radius);
 background:linear-gradient(160deg,rgba(34,211,238,.12),rgba(10,15,36,.65));
 border:1px solid rgba(34,211,238,.3);
}
.path-aside h3{font-size:17px;}
.path-aside p{font-size:14.5px;color:#c6d0ee;}
.aside-figure{margin-top:18px;border-radius:14px;overflow:hidden;border:1px solid var(--line);}
.aside-figure img{width:100%;height:190px;object-fit:cover;}
/* ===== 资讯列表 ===== */
.post-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:18px;}
.post-card{
 display:flex;flex-direction:column;gap:10px;
 padding:22px;border-radius:var(--radius);
 background:linear-gradient(170deg,rgba(255,255,255,.065),rgba(255,255,255,.015));
 border:1px solid var(--line);
 box-shadow:var(--shadow);
 transition:transform .25s ease,border-color .25s ease,box-shadow .25s ease;
 height:100%;
}
.post-card:hover{transform:translateY(-4px);border-color:rgba(255,180,0,.45);box-shadow:0 26px 52px -26px rgba(255,180,0,.55);}
.post-card h3{font-size:16.5px;margin:0;line-height:1.55;}
.post-card p{font-size:14px;color:var(--muted);margin:0;}
.post-meta{font-size:12.5px;color:var(--muted);letter-spacing:.5px;margin-top:auto;}
.empty-note{
 padding:26px;border-radius:var(--radius);border:1px dashed var(--line-2);
 color:var(--muted);font-size:14.5px;text-align:center;background:rgba(10,15,36,.45);
}
/* ===== 内容保障 ===== */
.assure-grid{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:34px;align-items:center;}
.assure-figure{border-radius:20px;overflow:hidden;border:1px solid var(--line-2);box-shadow:var(--shadow);position:relative;}
.assure-figure img{width:100%;height:330px;object-fit:cover;}
.assure-figure figcaption{
 position:absolute;left:0;right:0;bottom:0;
 padding:18px 20px;font-size:13.5px;color:#dbe3ff;
 background:linear-gradient(180deg,rgba(7,10,24,0),rgba(7,10,24,.92));
}
.assure-list{display:grid;gap:16px;}
.assure-item{
 padding:18px 20px;border-radius:14px;
 background:rgba(10,15,36,.6);border:1px solid var(--line);
 transition:border-color .25s ease,transform .25s ease;
}
.assure-item:hover{border-color:rgba(34,211,238,.42);transform:translateY(-2px);}
.assure-item h3{font-size:16px;margin-bottom:6px;}
.assure-item p{margin:0;font-size:14.5px;color:var(--muted);}
/* ===== 术语 ===== */
.term-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:16px;}
.term{
 padding:20px;border-radius:14px;
 background:var(--glass);border:1px solid var(--line);
}
.term dt,.term h3{font-size:15.5px;font-weight:800;color:var(--gold-2);margin-bottom:6px;}
.term p,.term dd{margin:0;font-size:14px;color:var(--muted);}
/* ===== FAQ ===== */
.faq-list{display:grid;gap:12px;max-width:900px;}
.faq-item{
 border-radius:14px;border:1px solid var(--line);
 background:rgba(10,15,36,.6);
 overflow:hidden;
 transition:border-color .25s ease;
}
.faq-item[open]{border-color:rgba(255,180,0,.42);}
.faq-item summary{
 cursor:pointer;list-style:none;
 padding:18px 52px 18px 20px;position:relative;
 font-size:16px;font-weight:700;color:#fff;
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary::after{
 content:"+";position:absolute;right:20px;top:50%;transform:translateY(-50%);
 font-size:20px;font-weight:700;color:var(--gold);
 transition:transform .2s ease;
}
.faq-item[open] summary::after{content:"−";}
.faq-item .faq-body{padding:0 20px 20px;font-size:14.5px;color:var(--muted);}
/* ===== 表单 ===== */
.solver-wrap{
 display:grid;grid-template-columns:minmax(0,.85fr) minmax(0,1.15fr);gap:36px;align-items:start;
}
.solver-form{
 padding:26px;border-radius:20px;
 background:linear-gradient(160deg,rgba(255,255,255,.085),rgba(255,255,255,.02));
 border:1px solid var(--line-2);
 box-shadow:var(--shadow);
 backdrop-filter:blur(12px);
}
.field{margin-bottom:16px;}
.field label{display:block;font-size:13.5px;font-weight:700;color:#d7defa;margin-bottom:7px;letter-spacing:.5px;}
.field input,.field textarea,.field select{
 width:100%;padding:12px 14px;border-radius:12px;
 background:rgba(7,10,24,.75);border:1px solid var(--line-2);color:var(--ink);
 font-size:14.5px;font-family:inherit;transition:border-color .2s ease,box-shadow .2s ease;
}
.field textarea{min-height:104px;resize:vertical;}
.field input::placeholder,.field textarea::placeholder{color:rgba(149,161,201,.75);}
.field input:focus,.field textarea:focus,.field select:focus{
 border-color:rgba(255,180,0,.65);
 box-shadow:0 0 0 3px rgba(255,180,0,.16);
 outline:none;
}
.form-msg{
 margin-top:14px;padding:12px 16px;border-radius:12px;
 background:rgba(34,211,238,.12);border:1px solid rgba(34,211,238,.34);
 color:#a9f0ff;font-size:14px;
}
.solver-notes{display:grid;gap:14px;}
.note-card{
 padding:18px 20px;border-radius:14px;
 border:1px solid var(--line);background:rgba(10,15,36,.55);
 font-size:14.5px;color:var(--muted);
}
.note-card b{color:var(--gold-2);}
/* ===== footer ===== */
.site-footer{
 border-top:1px solid var(--line);
 background:linear-gradient(180deg,rgba(255,255,255,.03),rgba(7,10,24,.9));
 padding:var(--step) 0 26px;
 margin-top:0;
}
.footer-cols{padding-bottom:34px;}
.footer-brand .brand{margin-bottom:16px;}
.footer-brand p{font-size:14.5px;color:var(--muted);max-width:440px;}
.footer-col h4{font-size:14px;letter-spacing:1.4px;color:#fff;margin-bottom:14px;}
.footer-col ul{display:grid;gap:9px;}
.footer-col li a{font-size:14px;color:var(--muted);}
.footer-col li a:hover{color:var(--gold-2);}
.footer-note{font-size:13.5px;color:var(--muted);line-height:1.8;}
.footer-bottom{
 display:flex;flex-wrap:wrap;gap:10px;justify-content:space-between;
 padding-top:20px;border-top:1px solid var(--line);
 font-size:13px;color:rgba(149,161,201,.85);
}
/* ===== 响应式 ===== */
@media screen and (max-width:1024px){
 .hero-inner{grid-template-columns:1fr;gap:30px;}
 .stat-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
 .card-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
 .post-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
 .term-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
 .path-wrap,.assure-grid,.solver-wrap{grid-template-columns:1fr;gap:28px;}
}
@media screen and (max-width:860px){
 .brand-meta{display:none;}
 .nav-toggle{display:inline-flex;}
 .nav-grid{display:none;grid-template-columns:1fr;padding-top:4px;}
 .nav-grid.is-open{display:grid;}
 .nav-item{font-size:14px;}
}
@media screen and (max-width:768px){
 .page-hero{padding:44px 0 62px;}
 .hero-lead{font-size:15.5px;}
 .compare-grid{grid-template-columns:1fr;}
 .stat-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
 .card-grid{grid-template-columns:1fr;}
 .post-grid{grid-template-columns:1fr;}
 .term-grid{grid-template-columns:1fr;}
 .assure-figure img{height:240px;}
}
@media screen and (max-width:520px){
 .grid-container{padding-left:16px;padding-right:16px;}
 .brand-text strong{font-size:17px;}
 .brand-text em{font-size:11px;}
 .hero-actions .btn{width:100%;}
 .stat-grid{grid-template-columns:1fr;}
 .stat b{font-size:28px;}
 .compare-card,.solver-form,.hero-panel{padding:20px;}
 .footer-bottom{flex-direction:column;gap:6px;}
}