/* roulang page: index */
:root{
  --bg:#070a18;
  --bg-soft:#0b1029;
  --bg-deep:#050813;
  --panel:rgba(255,255,255,.045);
  --panel-strong:rgba(255,255,255,.08);
  --line:rgba(255,255,255,.10);
  --line-strong:rgba(255,255,255,.18);
  --gold:#ffb400;
  --gold-light:#ffd166;
  --cyan:#3ce7ff;
  --violet:#8f7bff;
  --text:#eef2ff;
  --muted:#a2adcf;
  --radius:12px;
  --radius-lg:18px;
  --shadow:0 18px 44px rgba(0,0,0,.5);
  --shadow-soft:0 10px 26px rgba(0,0,0,.35);
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
  background:var(--bg);
  color:var(--text);
  line-height:1.78;
  font-size:16px;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{display:block;max-width:100%;border:0}
a{color:inherit;text-decoration:none}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer}
h1,h2,h3,h4,h5{margin:0;line-height:1.35;font-weight:800;letter-spacing:.3px}
p{margin:0}
ul{margin:0;padding:0;list-style:none}
:focus-visible{outline:2px solid var(--gold);outline-offset:3px;border-radius:8px}
.container{width:100%;max-width:1180px;margin:0 auto;padding:0 22px}
.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}

/* ============ 顶部信息条 ============ */
.topbar{
  background:var(--bg-deep);
  border-bottom:1px solid rgba(255,255,255,.06);
  font-size:13px;
  color:var(--muted);
}
.topbar-inner{display:flex;align-items:center;justify-content:space-between;gap:14px;min-height:42px;flex-wrap:wrap}
.topbar-note{display:flex;align-items:center;gap:9px;letter-spacing:.4px}
.topbar-note .dot{width:7px;height:7px;border-radius:50%;background:var(--cyan);box-shadow:0 0 12px var(--cyan)}
.topbar-chips{display:flex;align-items:center;gap:8px;flex-wrap:wrap}
.chip{
  display:inline-flex;align-items:center;gap:6px;
  padding:4px 12px;border-radius:999px;font-size:12px;
  border:1px solid var(--line);color:#c9d3f2;background:rgba(255,255,255,.04);
}
.chip-gold{border-color:rgba(255,180,0,.42);color:var(--gold-light);background:rgba(255,180,0,.10)}
.chip-cyan{border-color:rgba(60,231,255,.38);color:#9df2ff;background:rgba(60,231,255,.09)}

/* ============ 导航 ============ */
.site-header{
  position:sticky;top:0;z-index:80;
  background:rgba(9,13,32,.88);
  backdrop-filter:blur(16px);
  -webkit-backdrop-filter:blur(16px);
  border-bottom:1px solid var(--line);
}
.nav-inner{display:flex;align-items:center;gap:22px;min-height:70px}
.brand{display:flex;align-items:center;gap:11px;flex:0 0 auto}
.brand-mark{
  width:42px;height:42px;border-radius:13px;display:grid;place-items:center;
  font-weight:900;font-size:19px;color:#1a1030;
  background:linear-gradient(135deg,var(--gold-light),var(--gold));
  box-shadow:0 8px 22px rgba(255,180,0,.34);
}
.brand-text{display:flex;flex-direction:column;line-height:1.2}
.brand-name{font-size:17px;font-weight:900;letter-spacing:.6px}
.brand-sub{font-size:11px;letter-spacing:2.4px;color:var(--muted);font-weight:500}
.main-nav{display:flex;align-items:center;gap:6px;margin-left:auto}
.main-nav a{
  padding:9px 15px;border-radius:10px;font-size:15px;color:#c6d0ef;
  transition:color .22s ease,background .22s ease,transform .22s ease;
}
.main-nav a:hover{color:#fff;background:rgba(255,255,255,.08)}
.main-nav a.active{
  color:#140b28;font-weight:800;
  background:linear-gradient(135deg,var(--gold-light),var(--gold));
  box-shadow:0 10px 24px rgba(255,180,0,.32);
}
.nav-cta{
  margin-left:10px;padding:10px 20px;border-radius:999px;font-size:14px;font-weight:800;color:#0a0e22;
  background:linear-gradient(135deg,#6ff2ff,#8f7bff);
  box-shadow:0 0 24px rgba(80,220,255,.35);
  transition:transform .22s ease,box-shadow .22s ease,filter .22s ease;
}
.nav-cta:hover{transform:translateY(-2px);box-shadow:0 0 34px rgba(80,220,255,.55);filter:brightness(1.06)}
.nav-toggle{
  display:none;margin-left:auto;width:44px;height:44px;border-radius:12px;
  border:1px solid var(--line);background:rgba(255,255,255,.06);place-items:center;
}
.nav-toggle span{display:block;width:18px;height:2px;background:#dfe7ff;border-radius:2px;position:relative}
.nav-toggle span::before,.nav-toggle span::after{content:"";position:absolute;left:0;width:18px;height:2px;background:#dfe7ff;border-radius:2px}
.nav-toggle span::before{top:-6px}
.nav-toggle span::after{top:6px}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:9px;
  padding:14px 28px;border-radius:999px;font-size:15px;font-weight:800;
  transition:transform .24s ease,box-shadow .24s ease,background .24s ease,border-color .24s ease;
  border:1px solid transparent;letter-spacing:.4px;
}
.btn-gold{
  color:#160c2a;background:linear-gradient(135deg,var(--gold-light),var(--gold));
  box-shadow:0 12px 30px rgba(255,180,0,.35);
}
.btn-gold:hover{transform:translateY(-3px);box-shadow:0 18px 40px rgba(255,180,0,.52)}
.btn-ghost{
  color:#e6ecff;background:rgba(255,255,255,.06);border-color:var(--line-strong);
  backdrop-filter:blur(10px);
}
.btn-ghost:hover{background:rgba(255,255,255,.13);border-color:rgba(60,231,255,.55);transform:translateY(-3px)}
.btn-line{color:var(--gold-light);border-color:rgba(255,180,0,.5);background:rgba(255,180,0,.08)}
.btn-line:hover{background:rgba(255,180,0,.18);transform:translateY(-2px)}
.btn:active{transform:translateY(0) scale(.99)}

/* ============ Hero ============ */
.hero{position:relative;overflow:hidden;padding:86px 0 58px;isolation:isolate}
.hero-bg{
  position:absolute;inset:0;z-index:-2;
  background-image:url('/assets/images/backpic/back-1.webp');
  background-size:cover;background-position:center;
  opacity:.42;
}
.hero::before{
  content:"";position:absolute;inset:0;z-index:-1;
  background:
    radial-gradient(900px 420px at 12% 8%,rgba(143,123,255,.28),transparent 62%),
    radial-gradient(760px 380px at 88% 18%,rgba(60,231,255,.20),transparent 64%),
    linear-gradient(180deg,rgba(7,10,24,.62) 0%,rgba(7,10,24,.90) 58%,var(--bg) 100%);
}
.hero-inner{max-width:840px}
.hero-badge{
  display:inline-flex;align-items:center;gap:9px;
  padding:7px 16px;border-radius:999px;font-size:13px;font-weight:700;letter-spacing:1px;
  color:#ffdf9a;background:rgba(255,180,0,.13);border:1px solid rgba(255,180,0,.42);
  box-shadow:0 0 22px rgba(255,180,0,.18);
}
.hero-badge i{width:7px;height:7px;border-radius:50%;background:var(--gold);box-shadow:0 0 10px var(--gold);font-style:normal}
.hero h1{
  margin:22px 0 20px;
  font-size:clamp(30px,4.6vw,54px);
  line-height:1.24;
  letter-spacing:1px;
  background:linear-gradient(120deg,#ffffff 24%,#ffe6ad 58%,#8fe9ff 100%);
  -webkit-background-clip:text;background-clip:text;color:transparent;
  text-shadow:0 0 46px rgba(143,123,255,.25);
}
.hero-lead{color:#c3cdec;font-size:16.5px;max-width:760px}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:30px}
.hero-stats{display:flex;flex-wrap:wrap;gap:34px;margin-top:38px}
.hero-stat strong{display:block;font-size:26px;font-weight:900;color:#fff;letter-spacing:.5px}
.hero-stat strong em{font-style:normal;color:var(--gold);}
.hero-stat span{font-size:13px;color:var(--muted);letter-spacing:1px}

/* 系列导航条（叠在大图上） */
.series-bar{
  margin-top:52px;display:flex;align-items:center;gap:10px;flex-wrap:wrap;
  padding:14px 16px;border-radius:16px;
  background:rgba(11,16,41,.72);
  border:1px solid var(--line-strong);
  backdrop-filter:blur(18px);-webkit-backdrop-filter:blur(18px);
  box-shadow:var(--shadow);
}
.series-bar .series-label{font-size:12px;letter-spacing:2px;color:var(--cyan);font-weight:800;padding-right:6px;border-right:1px solid var(--line);margin-right:4px}
.series-bar a{
  padding:8px 16px;border-radius:999px;font-size:14px;color:#d5ddf7;
  background:rgba(255,255,255,.05);border:1px solid var(--line);
  transition:.22s ease;
}
.series-bar a:hover{color:#0d1226;background:linear-gradient(135deg,var(--gold-light),var(--gold));border-color:transparent;box-shadow:0 8px 20px rgba(255,180,0,.32)}

/* ============ 版块通用 ============ */
.section{padding:76px 0;position:relative}
.section-tight{padding:58px 0}
.section.alt{
  background:linear-gradient(180deg,rgba(12,18,44,.78),rgba(7,10,24,.35));
  border-top:1px solid rgba(255,255,255,.06);
  border-bottom:1px solid rgba(255,255,255,.06);
}
.section-head{max-width:780px;margin-bottom:38px}
.section-head.center{margin-left:auto;margin-right:auto;text-align:center}
.eyebrow{
  display:inline-flex;align-items:center;gap:9px;font-size:12px;font-weight:800;
  letter-spacing:3px;color:var(--cyan);margin-bottom:13px;
}
.eyebrow::before{content:"";width:22px;height:2px;border-radius:2px;background:linear-gradient(90deg,var(--cyan),transparent)}
.section-title{font-size:clamp(23px,3vw,33px);margin-bottom:13px;color:#fff}
.section-title em{font-style:normal;color:var(--gold)}
.section-desc{color:var(--muted);font-size:15.5px}

/* ============ 分类入口墙 ============ */
.cat-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.cat-card{
  position:relative;overflow:hidden;border-radius:var(--radius-lg);
  border:1px solid var(--line);background:var(--bg-soft);
  min-height:268px;display:flex;flex-direction:column;justify-content:flex-end;
  padding:26px 24px;isolation:isolate;
  transition:transform .3s ease,border-color .3s ease,box-shadow .3s ease;
}
.cat-card img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;opacity:.44;z-index:-2;transition:transform .5s ease,opacity .4s ease}
.cat-card::after{
  content:"";position:absolute;inset:0;z-index:-1;
  background:linear-gradient(180deg,rgba(7,10,24,.05) 0%,rgba(7,10,24,.72) 52%,rgba(7,10,24,.96) 100%);
}
.cat-card:hover{transform:translateY(-6px);border-color:rgba(255,180,0,.55);box-shadow:0 24px 54px rgba(0,0,0,.6)}
.cat-card:hover img{transform:scale(1.07);opacity:.62}
.cat-tag{
  align-self:flex-start;font-size:12px;font-weight:800;letter-spacing:1.6px;
  padding:5px 12px;border-radius:999px;margin-bottom:14px;
  color:#0e1327;background:linear-gradient(135deg,var(--gold-light),var(--gold));
}
.cat-tag.cyan{background:linear-gradient(135deg,#8bf3ff,#3ce7ff)}
.cat-tag.violet{background:linear-gradient(135deg,#c9bdff,#8f7bff)}
.cat-card h3{font-size:21px;margin-bottom:9px;color:#fff}
.cat-card p{font-size:14px;color:#bfc9e8;margin-bottom:16px}
.cat-more{display:inline-flex;align-items:center;gap:7px;font-size:14px;font-weight:800;color:var(--gold-light)}
.cat-more::after{content:"→";transition:transform .25s ease}
.cat-card:hover .cat-more::after{transform:translateX(5px)}

/* ============ 精选推荐 ============ */
.feature-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.feature-card{
  border-radius:var(--radius);overflow:hidden;background:var(--panel);
  border:1px solid var(--line);
  transition:transform .28s ease,border-color .28s ease,box-shadow .28s ease,background .28s ease;
  display:flex;flex-direction:column;
}
.feature-card:hover{transform:translateY(-5px);border-color:rgba(60,231,255,.45);background:var(--panel-strong);box-shadow:0 20px 46px rgba(0,0,0,.5)}
.feature-thumb{position:relative;aspect-ratio:16/10;overflow:hidden}
.feature-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .5s ease}
.feature-card:hover .feature-thumb img{transform:scale(1.07)}
.feature-thumb::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,transparent 40%,rgba(7,10,24,.72))}
.feature-body{padding:16px 18px 20px}
.feature-body h3{font-size:16px;margin-bottom:8px;color:#fff}
.feature-body p{font-size:13.5px;color:var(--muted);line-height:1.7}
.feature-body .feature-meta{margin-top:12px;display:flex;gap:8px;flex-wrap:wrap}

/* ============ 标签 ============ */
.tag{
  display:inline-flex;align-items:center;padding:3px 11px;border-radius:999px;
  font-size:12px;color:#bcd3ff;background:rgba(60,231,255,.10);
  border:1px solid rgba(60,231,255,.28);letter-spacing:.4px;white-space:nowrap;
}
.tag.gold{color:#ffdf9a;background:rgba(255,180,0,.11);border-color:rgba(255,180,0,.35)}
.tag.violet{color:#d3c9ff;background:rgba(143,123,255,.14);border-color:rgba(143,123,255,.34)}

/* ============ 数据条 ============ */
.stat-strip{
  display:grid;grid-template-columns:repeat(4,1fr);gap:18px;
  padding:30px 26px;border-radius:var(--radius-lg);
  background:linear-gradient(135deg,rgba(143,123,255,.16),rgba(60,231,255,.10));
  border:1px solid var(--line-strong);
  backdrop-filter:blur(14px);
}
.stat-item{text-align:center;position:relative}
.stat-item+.stat-item::before{content:"";position:absolute;left:-9px;top:16%;height:68%;width:1px;background:rgba(255,255,255,.12)}
.stat-item strong{display:block;font-size:30px;font-weight:900;color:#fff;letter-spacing:.5px}
.stat-item strong em{font-style:normal;color:var(--gold)}
.stat-item span{font-size:13px;color:var(--muted);letter-spacing:.6px}

/* ============ 场景矩阵 ============ */
.scene-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.scene-card{
  padding:26px 24px;border-radius:var(--radius);background:var(--panel);
  border:1px solid var(--line);transition:transform .26s ease,border-color .26s ease,background .26s ease;
}
.scene-card:hover{transform:translateY(-5px);border-color:rgba(255,180,0,.42);background:var(--panel-strong)}
.scene-icon{
  width:46px;height:46px;border-radius:13px;display:grid;place-items:center;
  font-size:19px;font-weight:900;color:#0d1226;margin-bottom:16px;
  background:linear-gradient(135deg,var(--gold-light),var(--gold));
  box-shadow:0 10px 24px rgba(255,180,0,.28);
}
.scene-icon.cyan{background:linear-gradient(135deg,#8bf3ff,#3ce7ff);box-shadow:0 10px 24px rgba(60,231,255,.26)}
.scene-icon.violet{background:linear-gradient(135deg,#c9bdff,#8f7bff);box-shadow:0 10px 24px rgba(143,123,255,.3)}
.scene-card h3{font-size:17px;margin-bottom:9px;color:#fff}
.scene-card p{font-size:14px;color:var(--muted)}

/* ============ 资讯区 ============ */
.news-layout{display:grid;grid-template-columns:1.65fr 1fr;gap:26px;align-items:start}
.news-list{display:flex;flex-direction:column;gap:14px}
.news-item{
  display:flex;gap:16px;padding:16px;border-radius:var(--radius);
  background:var(--panel);border:1px solid var(--line);
  transition:transform .26s ease,border-color .26s ease,background .26s ease,box-shadow .26s ease;
}
.news-item:hover{transform:translateX(5px);border-color:rgba(60,231,255,.45);background:var(--panel-strong);box-shadow:var(--shadow-soft)}
.news-thumb{flex:0 0 132px;height:92px;border-radius:10px;overflow:hidden}
.news-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .45s ease}
.news-item:hover .news-thumb img{transform:scale(1.08)}
.news-body{min-width:0;display:flex;flex-direction:column;justify-content:center}
.news-meta{display:flex;align-items:center;gap:10px;flex-wrap:wrap;margin-bottom:7px;font-size:12px;color:var(--muted)}
.news-body h3{font-size:16px;color:#fff;margin-bottom:6px;display:-webkit-box;-webkit-line-clamp:1;-webkit-box-orient:vertical;overflow:hidden}
.news-body p{font-size:13.5px;color:var(--muted);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.news-empty{
  padding:34px 22px;border-radius:var(--radius);border:1px dashed var(--line-strong);
  color:var(--muted);text-align:center;background:rgba(255,255,255,.03);
}
.news-side{
  padding:24px 22px;border-radius:var(--radius-lg);
  background:linear-gradient(180deg,rgba(143,123,255,.14),rgba(60,231,255,.06));
  border:1px solid var(--line-strong);
  position:sticky;top:96px;
}
.news-side h3{font-size:17px;margin-bottom:6px;color:#fff}
.news-side .side-sub{font-size:13px;color:var(--muted);margin-bottom:16px}
.side-list{display:flex;flex-direction:column;gap:12px}
.side-list a{
  display:flex;gap:11px;align-items:flex-start;font-size:14px;color:#d3dcf6;
  padding-bottom:12px;border-bottom:1px dashed rgba(255,255,255,.12);
  transition:color .22s ease;
}
.side-list a:last-child{border-bottom:0;padding-bottom:0}
.side-list a:hover{color:var(--gold-light)}
.side-num{
  flex:0 0 22px;height:22px;border-radius:7px;display:grid;place-items:center;
  font-size:12px;font-weight:900;color:#0d1226;
  background:linear-gradient(135deg,var(--gold-light),var(--gold));
}
.side-list .side-title{display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;line-height:1.6}

/* ============ 排行榜 ============ */
.rank-wrap{
  border-radius:var(--radius-lg);overflow:hidden;
  border:1px solid var(--line);background:var(--panel);
}
.rank-row{
  display:grid;grid-template-columns:56px 1fr 168px 92px;align-items:center;gap:16px;
  padding:18px 22px;border-bottom:1px solid rgba(255,255,255,.07);
  transition:background .24s ease;
}
.rank-row:last-child{border-bottom:0}
.rank-row:hover{background:rgba(255,255,255,.05)}
.rank-no{
  width:34px;height:34px;border-radius:10px;display:grid;place-items:center;
  font-weight:900;font-size:15px;color:#c8d2f0;background:rgba(255,255,255,.07);
  border:1px solid var(--line);
}
.rank-row:nth-child(1) .rank-no{color:#1a1030;background:linear-gradient(135deg,var(--gold-light),var(--gold));border-color:transparent;box-shadow:0 8px 20px rgba(255,180,0,.34)}
.rank-row:nth-child(2) .rank-no{color:#0d1226;background:linear-gradient(135deg,#d9e6ff,#9fb6e8);border-color:transparent}
.rank-row:nth-child(3) .rank-no{color:#0d1226;background:linear-gradient(135deg,#8bf3ff,#3ce7ff);border-color:transparent}
.rank-name{font-size:15px;font-weight:700;color:#fff}
.rank-name small{display:block;font-size:12.5px;color:var(--muted);font-weight:400;margin-top:3px}
.rank-bar{height:8px;border-radius:999px;background:rgba(255,255,255,.09);overflow:hidden}
.rank-bar i{display:block;height:100%;border-radius:999px;background:linear-gradient(90deg,var(--cyan),var(--gold))}
.rank-score{text-align:right;font-size:15px;font-weight:900;color:var(--gold-light)}

/* ============ 案例/证据 ============ */
.evidence-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.evidence-card{
  position:relative;padding:26px 24px 24px;border-radius:var(--radius);
  background:var(--panel);border:1px solid var(--line);
  border-left:3px solid var(--gold);
  transition:transform .26s ease,background .26s ease,border-color .26s ease;
}
.evidence-card:hover{transform:translateY(-5px);background:var(--panel-strong);border-left-color:var(--cyan)}
.evidence-card h3{font-size:17px;margin-bottom:10px;color:#fff}
.evidence-card p{font-size:14px;color:var(--muted);margin-bottom:14px}
.evidence-data{display:flex;gap:22px;flex-wrap:wrap;padding-top:14px;border-top:1px dashed rgba(255,255,255,.13)}
.evidence-data div strong{display:block;font-size:19px;color:var(--gold-light);font-weight:900}
.evidence-data div span{font-size:12px;color:var(--muted)}

/* ============ 版本路线图 ============ */
.roadmap{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.road-card{
  padding:24px 22px;border-radius:var(--radius);
  background:linear-gradient(180deg,rgba(255,255,255,.06),rgba(255,255,255,.02));
  border:1px solid var(--line);
  transition:transform .26s ease,border-color .26s ease;
}
.road-card:hover{transform:translateY(-4px);border-color:rgba(143,123,255,.5)}
.road-step{font-size:12px;font-weight:800;letter-spacing:2px;color:var(--cyan);margin-bottom:10px}
.road-card h3{font-size:17px;margin-bottom:10px;color:#fff}
.road-card p{font-size:14px;color:var(--muted);margin-bottom:14px}
.road-list li{font-size:13.5px;color:#c2cceb;padding-left:18px;position:relative;margin-bottom:7px}
.road-list li::before{content:"";position:absolute;left:0;top:9px;width:6px;height:6px;border-radius:50%;background:var(--gold)}
.road-list li.pending::before{background:rgba(255,255,255,.3)}

/* ============ 合作伙伴 ============ */
.partner-wall{display:flex;flex-wrap:wrap;gap:14px}
.partner-pill{
  padding:14px 24px;border-radius:999px;font-size:14.5px;color:#cfd9f5;font-weight:700;
  background:rgba(255,255,255,.045);border:1px solid var(--line);
  transition:.24s ease;letter-spacing:.5px;
}
.partner-pill:hover{color:#0d1226;background:linear-gradient(135deg,var(--gold-light),var(--gold));border-color:transparent;transform:translateY(-3px);box-shadow:0 12px 28px rgba(255,180,0,.3)}

/* ============ 评价墙 ============ */
.quote-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.quote-card{
  padding:26px 24px;border-radius:var(--radius);
  background:linear-gradient(180deg,rgba(143,123,255,.12),rgba(255,255,255,.02));
  border:1px solid var(--line);position:relative;
  transition:transform .26s ease,border-color .26s ease;
}
.quote-card:hover{transform:translateY(-5px);border-color:rgba(60,231,255,.42)}
.quote-card::before{
  content:"“";position:absolute;top:6px;right:20px;font-size:58px;line-height:1;
  color:rgba(255,180,0,.22);font-family:Georgia,serif;
}
.quote-card p{font-size:14.5px;color:#d3dcf6;margin-bottom:16px;position:relative;z-index:1}
.quote-user{display:flex;align-items:center;gap:11px;padding-top:14px;border-top:1px dashed rgba(255,255,255,.14)}
.quote-avatar{
  width:38px;height:38px;border-radius:50%;display:grid;place-items:center;font-weight:900;font-size:15px;color:#0d1226;
  background:linear-gradient(135deg,var(--gold-light),var(--gold));
}
.quote-user strong{display:block;font-size:14px;color:#fff}
.quote-user span{font-size:12px;color:var(--muted)}

/* ============ 保障条 ============ */
.trust-bar{
  display:grid;grid-template-columns:repeat(4,1fr);gap:18px;
  padding:28px 24px;border-radius:var(--radius-lg);
  background:rgba(255,255,255,.04);border:1px solid var(--line-strong);
}
.trust-item{display:flex;gap:13px;align-items:flex-start}
.trust-ico{
  flex:0 0 38px;height:38px;border-radius:11px;display:grid;place-items:center;font-size:16px;font-weight:900;color:#0d1226;
  background:linear-gradient(135deg,#8bf3ff,#3ce7ff);
}
.trust-item:nth-child(2) .trust-ico{background:linear-gradient(135deg,var(--gold-light),var(--gold))}
.trust-item:nth-child(3) .trust-ico{background:linear-gradient(135deg,#c9bdff,#8f7bff)}
.trust-item:nth-child(4) .trust-ico{background:linear-gradient(135deg,#a9ffd6,#37e0a0)}
.trust-item h4{font-size:14.5px;color:#fff;margin-bottom:3px}
.trust-item p{font-size:12.5px;color:var(--muted);line-height:1.6}

/* ============ 收口 CTA ============ */
.cta-panel{
  position:relative;overflow:hidden;border-radius:22px;
  padding:60px 48px;text-align:center;
  background:
    radial-gradient(620px 300px at 20% 10%,rgba(143,123,255,.4),transparent 66%),
    radial-gradient(560px 300px at 82% 88%,rgba(60,231,255,.28),transparent 66%),
    linear-gradient(140deg,#131a3c,#0a0f27 70%);
  border:1px solid rgba(255,255,255,.16);
  box-shadow:0 30px 70px rgba(0,0,0,.55);
}
.cta-panel::after{
  content:"";position:absolute;inset:auto -12% -60% -12%;height:220px;
  background:radial-gradient(closest-side,rgba(255,180,0,.28),transparent);
  filter:blur(10px);
}
.cta-panel > *{position:relative;z-index:1}
.cta-panel h2{font-size:clamp(24px,3.2vw,36px);margin-bottom:16px;color:#fff}
.cta-panel h2 em{font-style:normal;color:var(--gold-light)}
.cta-panel p{max-width:660px;margin:0 auto 28px;color:#c6d1f0;font-size:15.5px}
.cta-actions{display:flex;gap:14px;justify-content:center;flex-wrap:wrap}
.cta-note{margin-top:20px;font-size:13px;color:#98a4c8}

/* ============ 页脚 ============ */
.site-footer{
  margin-top:20px;background:var(--bg-deep);
  border-top:1px solid rgba(255,255,255,.09);
  padding:56px 0 0;
}
.footer-top{
  display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:34px;
  padding-bottom:42px;
}
.footer-note{font-size:14px;color:var(--muted);margin-top:16px;max-width:340px}
.footer-col h4{font-size:14px;color:#fff;margin-bottom:16px;letter-spacing:1.4px}
.footer-col a,.footer-col span{display:block;font-size:14px;color:var(--muted);margin-bottom:11px;transition:color .22s ease,transform .22s ease}
.footer-col a:hover{color:var(--gold-light);transform:translateX(3px)}
.footer-bottom{
  display:flex;align-items:center;justify-content:space-between;gap:14px;flex-wrap:wrap;
  padding:22px 0 30px;border-top:1px solid rgba(255,255,255,.09);
  font-size:13px;color:#7d88ab;
}

/* ============ 响应式 ============ */
@media (max-width:1024px){
  .feature-grid{grid-template-columns:repeat(2,1fr)}
  .stat-strip{grid-template-columns:repeat(2,1fr);gap:26px 18px}
  .stat-item:nth-child(3)::before{display:none}
  .news-layout{grid-template-columns:1fr}
  .news-side{position:static}
  .rank-row{grid-template-columns:46px 1fr 120px 84px;gap:12px}
  .trust-bar{grid-template-columns:repeat(2,1fr)}
  .footer-top{grid-template-columns:1fr 1fr;gap:28px}
}
@media (max-width:900px){
  .topbar-inner{justify-content:center}
  .nav-toggle{display:grid}
  .main-nav{
    position:absolute;left:0;right:0;top:100%;
    flex-direction:column;align-items:stretch;gap:6px;
    background:#0a1029;border-bottom:1px solid var(--line-strong);
    padding:14px 22px 20px;display:none;margin-left:0;
    box-shadow:0 24px 40px rgba(0,0,0,.5);
  }
  .main-nav.is-open{display:flex}
  .main-nav a{padding:12px 16px;font-size:15.5px}
  .nav-cta{display:none}
  .cat-grid{grid-template-columns:1fr}
  .scene-grid,.evidence-grid,.roadmap,.quote-grid{grid-template-columns:1fr}
  .hero{padding:64px 0 48px}
  .hero-stats{gap:26px}
  .section{padding:58px 0}
  .cta-panel{padding:44px 24px}
}
@media (max-width:520px){
  .container{padding:0 16px}
  .brand-name{font-size:15px}
  .brand-sub{font-size:10px;letter-spacing:1.6px}
  .brand-mark{width:38px;height:38px;border-radius:11px;font-size:17px}
  .hero h1{font-size:27px}
  .hero-lead{font-size:15px}
  .hero-actions .btn{width:100%}
  .hero-stat strong{font-size:22px}
  .series-bar{padding:12px;gap:8px}
  .series-bar a{font-size:13px;padding:7px 13px}
  .feature-grid{grid-template-columns:1fr}
  .stat-strip{grid-template-columns:1fr;gap:20px;padding:24px 18px}
  .stat-item+.stat-item::before{display:none}
  .news-item{flex-direction:column}
  .news-thumb{flex:1 1 auto;width:100%;height:160px}
  .rank-row{grid-template-columns:40px 1fr 72px;gap:10px;padding:15px}
  .rank-bar{display:none}
  .rank-score{font-size:14px}
  .trust-bar{grid-template-columns:1fr}
  .footer-top{grid-template-columns:1fr}
  .cta-actions .btn{width:100%}
  .footer-bottom{flex-direction:column;align-items:flex-start;gap:8px}
}

/* roulang page: article */
:root{
 --bg:#070a18;
 --bg-soft:#0b1029;
 --bg-deep:#050813;
 --panel:rgba(255,255,255,.045);
 --panel-strong:rgba(255,255,255,.08);
 --line:rgba(255,255,255,.10);
 --line-strong:rgba(255,255,255,.18);
 --gold:#ffb400;
 --gold-light:#ffd166;
 --cyan:#3ce7ff;
 --violet:#8f7bff;
 --text:#eef2ff;
 --muted:#a2adcf;
 --radius:12px;
 --radius-lg:18px;
 --shadow:0 18px 44px rgba(0,0,0,.5);
 --shadow-soft:0 10px 26px rgba(0,0,0,.35);
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{
 margin:0;
 font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
 background:var(--bg) !important;
 color:var(--text) !important;
 line-height:1.78 !important;
 font-size:16px;
 -webkit-font-smoothing:antialiased;
 overflow-x:hidden;
}
img{display:block;max-width:100%;border:0}
a{color:inherit;text-decoration:none}
a:hover{color:inherit}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer}
ul,ol{margin:0}
h1,h2,h3,h4,p,figure,blockquote{margin:0}
:focus-visible{outline:2px solid var(--cyan);outline-offset:3px;border-radius:6px}
.container{width:100%;max-width:1180px;margin:0 auto;padding:0 22px}

/* ============ 导航 ============ */
.site-header{
 position:sticky;top:0;z-index:80;
 background:rgba(9,13,32,.88);
 backdrop-filter:blur(16px);
 -webkit-backdrop-filter:blur(16px);
 border-bottom:1px solid var(--line);
}
.nav-inner{display:flex;align-items:center;gap:22px;min-height:70px}
.brand{display:flex;align-items:center;gap:11px;flex:0 0 auto}
.brand-mark{
 width:42px;height:42px;border-radius:13px;display:grid;place-items:center;
 font-weight:900;font-size:19px;color:#1a1030;
 background:linear-gradient(135deg,var(--gold-light),var(--gold));
 box-shadow:0 8px 22px rgba(255,180,0,.34);
}
.brand-text{display:flex;flex-direction:column;line-height:1.2}
.brand-name{font-size:17px;font-weight:900;letter-spacing:.6px}
.brand-sub{font-size:11px;letter-spacing:2.4px;color:var(--muted);font-weight:500}
.main-nav{display:flex;align-items:center;gap:6px;margin-left:auto}
.main-nav a{
 padding:9px 15px;border-radius:10px;font-size:15px;color:#c6d0ef;
 transition:color .22s ease,background .22s ease,transform .22s ease;
}
.main-nav a:hover{color:#fff;background:rgba(255,255,255,.08)}
.main-nav a.active{
 color:#140b28;font-weight:800;
 background:linear-gradient(135deg,var(--gold-light),var(--gold));
 box-shadow:0 10px 24px rgba(255,180,0,.32);
}
.nav-cta{
 margin-left:10px;padding:10px 20px;border-radius:999px;font-size:14px;font-weight:800;color:#0a0e22;
 background:linear-gradient(135deg,#6ff2ff,#8f7bff);
 box-shadow:0 0 24px rgba(80,220,255,.35);
 transition:transform .22s ease,box-shadow .22s ease,filter .22s ease;
}
.nav-cta:hover{transform:translateY(-2px);box-shadow:0 0 34px rgba(80,220,255,.55);filter:brightness(1.06)}
.nav-toggle{
 display:none;margin-left:auto;width:44px;height:44px;border-radius:12px;
 border:1px solid var(--line);background:rgba(255,255,255,.06);place-items:center;
}
.nav-toggle span{display:block;width:18px;height:2px;background:#dfe7ff;border-radius:2px;position:relative}
.nav-toggle span::before,.nav-toggle span::after{content:"";position:absolute;left:0;width:18px;height:2px;background:#dfe7ff;border-radius:2px}
.nav-toggle span::before{top:-6px}
.nav-toggle span::after{top:6px}

/* ============ 按钮 / 标签 ============ */
.btn{
 display:inline-flex;align-items:center;justify-content:center;gap:9px;
 padding:14px 28px;border-radius:999px;font-size:15px;font-weight:800;
 transition:transform .24s ease,box-shadow .24s ease,background .24s ease,border-color .24s ease;
 border:1px solid transparent;letter-spacing:.4px;
}
.btn-gold{
 color:#160c2a;background:linear-gradient(135deg,var(--gold-light),var(--gold));
 box-shadow:0 12px 30px rgba(255,180,0,.35);
}
.btn-gold:hover{transform:translateY(-3px);box-shadow:0 18px 40px rgba(255,180,0,.52)}
.btn-ghost{
 color:#e6ecff;background:rgba(255,255,255,.06);border-color:var(--line-strong);
 backdrop-filter:blur(10px);
}
.btn-ghost:hover{background:rgba(255,255,255,.13);border-color:rgba(60,231,255,.55);transform:translateY(-3px)}
.btn:active{transform:translateY(0) scale(.99)}
.badge-gold{
 display:inline-flex;align-items:center;gap:8px;
 padding:6px 15px;border-radius:999px;font-size:12.5px;font-weight:800;letter-spacing:1.2px;
 color:#ffdf9a;background:rgba(255,180,0,.13);border:1px solid rgba(255,180,0,.45);
}
.badge-cyan{
 display:inline-flex;align-items:center;gap:8px;
 padding:5px 13px;border-radius:999px;font-size:12.5px;font-weight:700;letter-spacing:.8px;
 color:#9df2ff;background:rgba(60,231,255,.10);border:1px solid rgba(60,231,255,.38);
}

/* ============ 文章头部 ============ */
.article-hero{position:relative;overflow:hidden;padding:46px 0 58px;isolation:isolate}
.article-hero-bg{
 position:absolute;inset:0;z-index:-2;
 background-image:url('/assets/images/backpic/back-3.webp');
 background-size:cover;background-position:center;opacity:.36;
}
.article-hero::before{
 content:"";position:absolute;inset:0;z-index:-1;
 background:
 radial-gradient(820px 380px at 10% 6%,rgba(143,123,255,.30),transparent 62%),
 radial-gradient(680px 340px at 90% 16%,rgba(60,231,255,.20),transparent 66%),
 linear-gradient(180deg,rgba(7,10,24,.72) 0%,rgba(7,10,24,.93) 62%,var(--bg) 100%);
}
.crumb{display:flex;align-items:center;gap:9px;font-size:13px;color:var(--muted);flex-wrap:wrap}
.crumb a{color:#c9d3f2;transition:color .2s ease}
.crumb a:hover{color:var(--gold-light)}
.crumb .sep{opacity:.5}
.article-hero-grid{display:grid;grid-template-columns:1.32fr .88fr;gap:44px;align-items:center;margin-top:24px}
.article-title{
 font-size:clamp(26px,3.6vw,42px);line-height:1.28;letter-spacing:.6px;
 margin:16px 0 16px;
 background:linear-gradient(120deg,#ffffff 22%,#ffe6ad 60%,#9fe9ff 100%);
 -webkit-background-clip:text;background-clip:text;color:transparent;
}
.article-lead{color:#c3cdec;font-size:16px;line-height:1.85;margin:0 0 22px;max-width:640px}
.article-meta{display:flex;gap:10px;flex-wrap:wrap;font-size:13px;color:var(--muted)}
.article-meta span{
 padding:5px 13px;border-radius:999px;
 border:1px solid var(--line);background:rgba(255,255,255,.05);
}
.article-cover{
 margin:0;border-radius:var(--radius-lg);overflow:hidden;
 border:1px solid var(--line-strong);box-shadow:var(--shadow);
}
.article-cover img{width:100%;height:100%;object-fit:cover;aspect-ratio:16/11}

/* ============ 板块基础 ============ */
.section{position:relative;padding:66px 0}
.section-alt{
 background:var(--bg-soft);
 border-top:1px solid var(--line);
 border-bottom:1px solid var(--line);
}
.section-head{max-width:760px;margin-bottom:34px}
.section-kicker{
 font-size:12.5px;font-weight:800;letter-spacing:2.4px;color:var(--gold-light);
 text-transform:uppercase;
}
.section-head h2{
 font-size:clamp(22px,2.6vw,32px);line-height:1.34;margin:10px 0 12px;color:#fff;
}
.section-head p{color:var(--muted);font-size:15px;line-height:1.85}

/* ============ 要点卡 ============ */
.insight-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.insight-card{
 padding:28px 24px;border-radius:var(--radius-lg);
 background:linear-gradient(160deg,rgba(255,255,255,.085),rgba(255,255,255,.028));
 border:1px solid var(--line);
 box-shadow:var(--shadow-soft);
 backdrop-filter:blur(12px);
 transition:transform .26s ease,border-color .26s ease,box-shadow .26s ease;
}
.insight-card:hover{transform:translateY(-5px);border-color:rgba(255,180,0,.48);box-shadow:0 22px 46px rgba(0,0,0,.5)}
.insight-card .num{font-size:12.5px;font-weight:900;letter-spacing:2px;color:var(--gold)}
.insight-card h3{font-size:18px;margin:12px 0 10px;line-height:1.45}
.insight-card p{color:var(--muted);font-size:14.5px;line-height:1.8;margin:0}

/* ============ 正文 ============ */
.article-body{
 max-width:840px;margin:0 auto;
 font-size:16.5px;line-height:1.92;color:#dbe3ff;
}
.article-body h2{
 font-size:clamp(20px,2.4vw,26px);line-height:1.45;
 margin:40px 0 16px;padding-left:14px;color:#fff;
 border-left:4px solid var(--gold);
}
.article-body h3{font-size:18px;line-height:1.5;margin:28px 0 10px;color:#fff}
.article-body h4{font-size:16.5px;margin:22px 0 8px;color:#fff}
.article-body p{margin:0 0 17px}
.article-body ul,.article-body ol{padding-left:24px;margin:0 0 18px;color:#cdd6f5}
.article-body li{margin:8px 0}
.article-body a{color:var(--cyan);text-decoration:underline;text-underline-offset:3px}
.article-body a:hover{color:var(--gold-light)}
.article-body blockquote{
 margin:26px 0;padding:20px 24px;border-radius:12px;
 border-left:3px solid var(--cyan);
 background:rgba(60,231,255,.07);color:#cfe4ff;
}
.article-body img{border-radius:12px;margin:24px auto;width:100%}
.article-body table{width:100%;border-collapse:collapse;margin:24px 0;font-size:15px}
.article-body th,.article-body td{border:1px solid var(--line);padding:11px 13px;text-align:left}
.article-body th{background:rgba(255,255,255,.06);color:#fff}
.article-body code{
 background:rgba(255,255,255,.09);padding:2px 7px;border-radius:6px;
 font-size:14px;color:var(--gold-light);
}
.empty-state{
 max-width:560px;margin:0 auto;text-align:center;
 padding:48px 30px;border-radius:var(--radius-lg);
 border:1px dashed var(--line-strong);background:var(--panel);
}
.empty-state h2{font-size:22px;margin:0 0 12px;color:#fff}
.empty-state p{color:var(--muted);font-size:15px;margin:0 0 22px}

/* ============ 引语 ============ */
.pullquote{
 max-width:940px;margin:0 auto;
 padding:38px 44px;border-radius:var(--radius-lg);
 border-left:4px solid var(--gold);
 background:linear-gradient(120deg,rgba(255,180,0,.10),rgba(143,123,255,.12));
 box-shadow:var(--shadow-soft);
}
.pullquote p{
 font-size:clamp(18px,2.2vw,25px);line-height:1.7;font-weight:600;color:#fff;
 margin:0 0 14px;
}
.pullquote cite{font-style:normal;font-size:14px;letter-spacing:1.2px;color:var(--gold-light)}

/* ============ 流程时间线 ============ */
.timeline{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}
.step{
 padding:26px 22px;border-radius:var(--radius-lg);
 border:1px solid var(--line);background:var(--panel);
 transition:border-color .24s ease,transform .24s ease,background .24s ease;
}
.step:hover{border-color:rgba(60,231,255,.45);transform:translateY(-4px);background:var(--panel-strong)}
.step .idx{
 width:36px;height:36px;border-radius:11px;display:grid;place-items:center;
 font-weight:900;font-size:15px;color:#160c2a;
 background:linear-gradient(135deg,var(--gold-light),var(--gold));
 box-shadow:0 8px 20px rgba(255,180,0,.3);
}
.step h3{font-size:16.5px;margin:16px 0 8px;line-height:1.5}
.step p{color:var(--muted);font-size:14px;line-height:1.8;margin:0}

/* ============ 频道矩阵 ============ */
.channel-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.channel-card{
 display:block;position:relative;overflow:hidden;
 padding:30px 26px;border-radius:var(--radius-lg);
 border:1px solid var(--line);
 background:linear-gradient(150deg,rgba(143,123,255,.18),rgba(60,231,255,.06));
 transition:transform .26s ease,border-color .26s ease,box-shadow .26s ease;
}
.channel-card:hover{transform:translateY(-5px);border-color:rgba(255,180,0,.5);box-shadow:0 20px 44px rgba(0,0,0,.5)}
.channel-card .tag{font-size:12px;letter-spacing:2px;font-weight:800;color:var(--cyan)}
.channel-card h3{font-size:19px;margin:12px 0 10px;color:#fff}
.channel-card p{color:var(--muted);font-size:14.5px;line-height:1.8;margin:0 0 16px}
.channel-card .more{font-size:14px;font-weight:800;color:var(--gold-light);display:inline-flex;align-items:center;gap:7px}
.channel-card:hover .more{gap:12px}

/* ============ FAQ ============ */
.faq-list{display:grid;gap:14px;max-width:900px}
.faq-item{
 border:1px solid var(--line);border-radius:var(--radius);
 background:var(--panel);overflow:hidden;
 transition:border-color .22s ease,background .22s ease;
}
.faq-item:hover{border-color:rgba(255,180,0,.4)}
.faq-item summary{
 cursor:pointer;list-style:none;
 padding:18px 22px;font-weight:700;font-size:15.5px;color:#f2f5ff;
 display:flex;align-items:center;justify-content:space-between;gap:18px;
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::after{content:"+";color:var(--gold);font-size:21px;line-height:1;flex:0 0 auto}
.faq-item[open] summary::after{content:"–"}
.faq-item p{padding:0 22px 20px;margin:0;color:var(--muted);font-size:15px;line-height:1.85}

/* ============ 相关推荐 ============ */
.related-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.related-card{
 border:1px solid var(--line);border-radius:var(--radius-lg);overflow:hidden;
 background:var(--panel);transition:transform .26s ease,border-color .26s ease;
}
.related-card:hover{transform:translateY(-4px);border-color:rgba(60,231,255,.42)}
.related-card img{width:100%;height:168px;object-fit:cover}
.related-card .body{padding:20px 22px 24px}
.related-card h3{font-size:16.5px;line-height:1.5;margin:0 0 9px;color:#fff}
.related-card p{color:var(--muted);font-size:14px;line-height:1.8;margin:0}
.related-foot{margin-top:28px;display:flex;justify-content:center}

/* ============ 收口 CTA ============ */
.cta-band{
 border-radius:22px;padding:52px 40px;text-align:center;
 border:1px solid rgba(255,180,0,.32);
 background:
 radial-gradient(600px 220px at 50% 0%,rgba(255,180,0,.16),transparent 70%),
 linear-gradient(150deg,rgba(143,123,255,.18),rgba(7,10,24,.6));
 box-shadow:var(--shadow);
}
.cta-band h2{font-size:clamp(22px,2.8vw,32px);line-height:1.35;margin:0 0 14px;color:#fff}
.cta-band p{color:var(--muted);font-size:15.5px;line-height:1.85;max-width:680px;margin:0 auto 26px}
.cta-actions{display:flex;gap:14px;justify-content:center;flex-wrap:wrap}

/* ============ 页脚 ============ */
.site-footer{
 margin-top:20px;background:var(--bg-deep);
 border-top:1px solid var(--line);padding:56px 0 0;
}
.footer-top{
 display:grid;grid-template-columns:1.7fr 1fr 1fr 1fr;gap:34px;
 padding-bottom:42px;
}
.footer-note{color:var(--muted);font-size:14px;line-height:1.85;margin-top:16px;max-width:380px}
.footer-col h4{font-size:14px;letter-spacing:1.6px;color:#fff;margin:0 0 14px;font-weight:800}
.footer-col a,.footer-col span{
 display:block;color:var(--muted);font-size:14px;padding:6px 0;
 transition:color .2s ease,transform .2s ease;
}
.footer-col a:hover{color:var(--gold-light);transform:translateX(3px)}
.footer-bottom{
 border-top:1px solid var(--line);
 display:flex;align-items:center;justify-content:space-between;gap:12px;flex-wrap:wrap;
 padding:18px 0 26px;font-size:13px;color:var(--muted);
}

/* ============ 响应式 ============ */
@media (max-width:1024px){
 .article-hero-grid{grid-template-columns:1fr;gap:30px}
 .article-cover img{aspect-ratio:16/8}
 .insight-grid{grid-template-columns:repeat(2,1fr)}
 .timeline{grid-template-columns:repeat(2,1fr)}
 .channel-grid,.related-grid{grid-template-columns:repeat(2,1fr)}
 .footer-top{grid-template-columns:1.3fr 1fr 1fr}
}
@media (max-width:900px){
 .nav-toggle{display:grid}
 .nav-cta{display:none}
 .main-nav{
  position:absolute;top:100%;left:0;right:0;
  flex-direction:column;align-items:stretch;gap:4px;margin:0;
  padding:14px 18px 20px;
  background:rgba(8,12,30,.98);
  border-bottom:1px solid var(--line);
  box-shadow:0 24px 40px rgba(0,0,0,.55);
  display:none;
 }
 .main-nav.is-open{display:flex}
 .main-nav a{padding:12px 14px;font-size:15.5px}
 .nav-inner{position:relative;flex-wrap:wrap;min-height:66px}
}
@media (max-width:768px){
 .section{padding:48px 0}
 .insight-grid,.timeline,.channel-grid,.related-grid{grid-template-columns:1fr}
 .article-title{font-size:clamp(23px,6vw,30px)}
 .pullquote{padding:26px 22px}
 .cta-band{padding:38px 22px}
 .footer-top{grid-template-columns:1fr 1fr;gap:26px}
 .article-meta{font-size:12.5px}
}
@media (max-width:520px){
 .container{padding:0 16px}
 .brand-name{font-size:15.5px}
 .brand-sub{letter-spacing:1.6px;font-size:10px}
 .btn{padding:12px 20px;font-size:14px}
 .footer-top{grid-template-columns:1fr}
 .footer-bottom{flex-direction:column;align-items:flex-start}
 .article-hero{padding:34px 0 44px}
 .related-card img{height:150px}
}

/* roulang page: category1 */
:root{
  --bg:#070a18;
  --bg-soft:#0b1029;
  --bg-deep:#050813;
  --panel:rgba(255,255,255,.045);
  --panel-strong:rgba(255,255,255,.08);
  --line:rgba(255,255,255,.10);
  --line-strong:rgba(255,255,255,.18);
  --gold:#ffb400;
  --gold-light:#ffd166;
  --cyan:#3ce7ff;
  --violet:#8f7bff;
  --text:#eef2ff;
  --muted:#a2adcf;
  --radius:12px;
  --radius-lg:18px;
  --shadow:0 18px 44px rgba(0,0,0,.5);
  --shadow-soft:0 10px 26px rgba(0,0,0,.35);
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
  background:var(--bg);
  color:var(--text);
  line-height:1.78;
  font-size:16px;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
h1,h2,h3,h4,h5,h6,p,figure,blockquote{margin:0}
ul,ol{margin:0;padding:0;list-style:none}
img{display:block;max-width:100%;border:0}
a{color:inherit;text-decoration:none}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer}
a:focus-visible,button:focus-visible,summary:focus-visible{outline:2px solid var(--cyan);outline-offset:3px;border-radius:8px}
.container{width:100%;max-width:1180px;margin:0 auto;padding:0 22px}
/* ===== 顶部信息条 ===== */
.topbar{background:var(--bg-deep);border-bottom:1px solid rgba(255,255,255,.06);font-size:13px;color:var(--muted)}
.topbar-inner{display:flex;align-items:center;justify-content:space-between;gap:14px;min-height:42px;flex-wrap:wrap}
.topbar-note{display:flex;align-items:center;gap:9px;letter-spacing:.4px}
.topbar-note .dot{width:7px;height:7px;border-radius:50%;background:var(--cyan);box-shadow:0 0 12px var(--cyan)}
.topbar-chips{display:flex;align-items:center;gap:8px;flex-wrap:wrap}
.chip{display:inline-flex;align-items:center;gap:6px;padding:4px 12px;border-radius:999px;font-size:12px;border:1px solid var(--line);color:#c9d3f2;background:rgba(255,255,255,.04)}
.chip-gold{border-color:rgba(255,180,0,.42);color:var(--gold-light);background:rgba(255,180,0,.10)}
.chip-cyan{border-color:rgba(60,231,255,.38);color:#9df2ff;background:rgba(60,231,255,.09)}
/* ===== 导航 ===== */
.site-header{position:sticky;top:0;z-index:80;background:rgba(9,13,32,.88);backdrop-filter:blur(16px);-webkit-backdrop-filter:blur(16px);border-bottom:1px solid var(--line)}
.nav-inner{display:flex;align-items:center;gap:22px;min-height:70px}
.brand{display:flex;align-items:center;gap:11px;flex:0 0 auto}
.brand-mark{width:42px;height:42px;border-radius:13px;display:grid;place-items:center;font-weight:900;font-size:19px;color:#1a1030;background:linear-gradient(135deg,var(--gold-light),var(--gold));box-shadow:0 8px 22px rgba(255,180,0,.34)}
.brand-text{display:flex;flex-direction:column;line-height:1.2}
.brand-name{font-size:17px;font-weight:900;letter-spacing:.6px}
.brand-sub{font-size:11px;letter-spacing:2.4px;color:var(--muted);font-weight:500}
.main-nav{display:flex;align-items:center;gap:6px;margin-left:auto}
.main-nav a{padding:9px 15px;border-radius:10px;font-size:15px;color:#c6d0ef;transition:color .22s ease,background .22s ease,transform .22s ease}
.main-nav a:hover{color:#fff;background:rgba(255,255,255,.08)}
.main-nav a.active{color:#140b28;font-weight:800;background:linear-gradient(135deg,var(--gold-light),var(--gold));box-shadow:0 10px 24px rgba(255,180,0,.32)}
.nav-cta{margin-left:10px;padding:10px 20px;border-radius:999px;font-size:14px;font-weight:800;color:#0a0e22;background:linear-gradient(135deg,#6ff2ff,#8f7bff);box-shadow:0 0 24px rgba(80,220,255,.35);transition:transform .22s ease,box-shadow .22s ease,filter .22s ease}
.nav-cta:hover{transform:translateY(-2px);box-shadow:0 0 34px rgba(80,220,255,.55);filter:brightness(1.06)}
.nav-toggle{display:none;margin-left:auto;width:44px;height:44px;border-radius:12px;border:1px solid var(--line);background:rgba(255,255,255,.06);place-items:center}
.nav-toggle span{display:block;width:18px;height:2px;background:#dfe7ff;border-radius:2px;position:relative}
.nav-toggle span::before,.nav-toggle span::after{content:"";position:absolute;left:0;width:18px;height:2px;background:#dfe7ff;border-radius:2px}
.nav-toggle span::before{top:-6px}
.nav-toggle span::after{top:6px}
/* ===== 按钮 ===== */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:9px;padding:14px 28px;border-radius:999px;font-size:15px;font-weight:800;letter-spacing:.4px;border:1px solid transparent;transition:transform .24s ease,box-shadow .24s ease,background .24s ease,border-color .24s ease}
.btn-gold{color:#160c2a;background:linear-gradient(135deg,var(--gold-light),var(--gold));box-shadow:0 12px 30px rgba(255,180,0,.35)}
.btn-gold:hover{transform:translateY(-3px);box-shadow:0 18px 40px rgba(255,180,0,.52)}
.btn-ghost{color:#e6ecff;background:rgba(255,255,255,.06);border-color:var(--line-strong);backdrop-filter:blur(10px)}
.btn-ghost:hover{background:rgba(255,255,255,.13);border-color:rgba(60,231,255,.55);transform:translateY(-3px)}
.btn:active{transform:translateY(0) scale(.99)}
/* ===== Hero ===== */
.hero{position:relative;overflow:hidden;padding:66px 0 74px;isolation:isolate}
.hero-bg{position:absolute;inset:0;z-index:-2;background-image:url('/assets/images/backpic/back-2.webp');background-size:cover;background-position:center;opacity:.38}
.hero::before{content:"";position:absolute;inset:0;z-index:-1;background:
  radial-gradient(900px 420px at 10% 6%,rgba(143,123,255,.30),transparent 62%),
  radial-gradient(760px 380px at 90% 16%,rgba(60,231,255,.18),transparent 64%),
  linear-gradient(180deg,rgba(7,10,24,.62) 0%,rgba(7,10,24,.92) 60%,var(--bg) 100%)}
.hero-grid{display:grid;grid-template-columns:1.08fr .92fr;gap:46px;align-items:center}
.crumb{display:flex;align-items:center;gap:8px;font-size:13px;color:var(--muted);margin-bottom:16px;flex-wrap:wrap}
.crumb a{color:#c9d3f2}
.crumb a:hover{color:var(--gold-light)}
.crumb span{color:rgba(255,255,255,.28)}
.hero-badge{display:inline-flex;align-items:center;gap:9px;padding:7px 16px;border-radius:999px;font-size:13px;font-weight:700;letter-spacing:1px;color:#ffdf9a;background:rgba(255,180,0,.13);border:1px solid rgba(255,180,0,.42);box-shadow:0 0 22px rgba(255,180,0,.18)}
.hero-badge i{width:7px;height:7px;border-radius:50%;background:var(--gold);box-shadow:0 0 10px var(--gold);font-style:normal}
.hero h1{margin:20px 0 18px;font-size:clamp(27px,3.5vw,44px);line-height:1.3;letter-spacing:.5px;background:linear-gradient(120deg,#ffffff 22%,#ffe6ad 58%,#8fe9ff 100%);-webkit-background-clip:text;background-clip:text;color:transparent}
.hero-lead{color:#c3cdec;font-size:16px;max-width:620px}
.hero-actions{display:flex;gap:14px;flex-wrap:wrap;margin-top:28px}
.hero-points{display:flex;gap:20px;flex-wrap:wrap;margin-top:26px;font-size:13.5px;color:var(--muted)}
.hero-points li{display:flex;align-items:center;gap:8px}
.hero-points li::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--cyan);box-shadow:0 0 8px var(--cyan)}
/* 演示面板 */
.dash{position:relative;background:linear-gradient(160deg,rgba(255,255,255,.10),rgba(255,255,255,.03));border:1px solid var(--line-strong);border-radius:var(--radius-lg);padding:24px;box-shadow:var(--shadow);backdrop-filter:blur(18px);-webkit-backdrop-filter:blur(18px)}
.dash::after{content:"";position:absolute;inset:-1px;border-radius:var(--radius-lg);pointer-events:none;background:linear-gradient(140deg,rgba(60,231,255,.28),transparent 42%,rgba(255,180,0,.25));opacity:.5;-webkit-mask:linear-gradient(#000,#000) content-box,linear-gradient(#000,#000);-webkit-mask-composite:xor;mask-composite:exclude;padding:1px}
.dash-head{display:flex;align-items:center;gap:9px;font-size:14px;font-weight:800;letter-spacing:.6px;color:#e7edff;padding-bottom:14px;border-bottom:1px dashed rgba(255,255,255,.14)}
.dash-dot{width:9px;height:9px;border-radius:50%;background:var(--cyan);box-shadow:0 0 12px var(--cyan)}
.dash-step{padding:16px 0;border-bottom:1px solid rgba(255,255,255,.07)}
.dash-step:last-of-type{border-bottom:0}
.dash-label{display:flex;align-items:center;justify-content:space-between;font-size:14px;font-weight:700;color:#dfe7ff}
.dash-label b{font-size:12px;font-weight:700;color:var(--gold-light);letter-spacing:.5px}
.dash-bar{margin:10px 0 8px;height:8px;border-radius:999px;background:rgba(255,255,255,.08);overflow:hidden}
.dash-bar i{display:block;height:100%;border-radius:999px;background:linear-gradient(90deg,var(--cyan),var(--violet));box-shadow:0 0 16px rgba(60,231,255,.5)}
.dash-step p{font-size:13.5px;color:var(--muted);line-height:1.7}
.dash-foot{margin-top:14px;font-size:13px;color:#9ff0ff;background:rgba(60,231,255,.08);border:1px solid rgba(60,231,255,.24);border-radius:10px;padding:10px 14px}
/* ===== 区块通用 ===== */
.section{padding:72px 0}
.section-tight{padding:56px 0}
.band{background:var(--bg-soft);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.sec-head{max-width:760px;margin-bottom:36px}
.sec-head-row{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;flex-wrap:wrap;margin-bottom:36px}
.eyebrow{display:inline-flex;align-items:center;gap:8px;font-size:12.5px;font-weight:800;letter-spacing:2px;color:var(--gold-light);text-transform:uppercase}
.eyebrow::before{content:"";width:22px;height:2px;border-radius:2px;background:linear-gradient(90deg,var(--gold),transparent)}
.sec-title{margin-top:12px;font-size:clamp(22px,2.6vw,32px);line-height:1.38;font-weight:900;letter-spacing:.4px;color:#f4f7ff}
.sec-desc{margin-top:12px;color:var(--muted);font-size:15.5px}
/* 统计条 */
.stat-strip{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}
.stat{background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);padding:20px;transition:transform .24s ease,border-color .24s ease,box-shadow .24s ease}
.stat:hover{transform:translateY(-4px);border-color:rgba(255,180,0,.38);box-shadow:var(--shadow-soft)}
.stat strong{display:block;font-size:30px;font-weight:900;line-height:1.2;color:var(--gold-light);letter-spacing:.5px}
.stat span{display:block;margin-top:6px;font-size:13.5px;color:var(--muted)}
/* 机制分栏 */
.split{display:grid;grid-template-columns:1.12fr .88fr;gap:22px}
.card{background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);padding:24px;transition:transform .24s ease,border-color .24s ease,box-shadow .24s ease,background .24s ease}
.card:hover{transform:translateY(-4px);border-color:rgba(60,231,255,.32);box-shadow:var(--shadow-soft);background:rgba(255,255,255,.06)}
.card-lead{display:flex;flex-direction:column;justify-content:space-between;background:linear-gradient(150deg,rgba(143,123,255,.20),rgba(60,231,255,.08) 55%,rgba(255,255,255,.03));border-color:rgba(143,123,255,.32);padding:28px}
.card-lead h3{font-size:21px;font-weight:900;color:#f6f8ff;line-height:1.45}
.card-lead p{margin-top:12px;color:#c6d0ef;font-size:15px}
.tag{display:inline-flex;align-items:center;gap:6px;padding:4px 12px;border-radius:999px;font-size:12px;font-weight:700;letter-spacing:.5px;color:#9df2ff;background:rgba(60,231,255,.10);border:1px solid rgba(60,231,255,.30)}
.tag-gold{color:#ffdf9a;background:rgba(255,180,0,.12);border-color:rgba(255,180,0,.36)}
.card-lead .tag{margin-bottom:16px;align-self:flex-start}
.stack{display:grid;gap:16px}
.mini h4{font-size:16px;font-weight:800;color:#eef2ff;display:flex;align-items:center;gap:9px}
.mini h4 em{font-style:normal;font-size:12px;font-weight:800;color:#0a0e22;background:linear-gradient(135deg,var(--gold-light),var(--gold));border-radius:7px;padding:1px 8px}
.mini p{margin-top:8px;font-size:14.5px;color:var(--muted);line-height:1.75}
/* 场景网格 */
.scene-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:18px}
.scene{position:relative;background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);padding:24px 24px 22px 26px;overflow:hidden;transition:transform .24s ease,border-color .24s ease,box-shadow .24s ease}
.scene::before{content:"";position:absolute;left:0;top:0;bottom:0;width:3px;background:linear-gradient(180deg,var(--cyan),var(--violet));opacity:.65}
.scene:hover{transform:translateY(-4px);border-color:rgba(255,180,0,.34);box-shadow:var(--shadow-soft)}
.scene-num{font-size:12px;font-weight:900;letter-spacing:2px;color:var(--gold)}
.scene h3{margin-top:8px;font-size:18px;font-weight:900;color:#f2f5ff}
.scene p{margin-top:9px;font-size:14.5px;color:var(--muted)}
.scene .fix{display:inline-block;margin-top:14px;font-size:13px;color:#9df2ff;border-bottom:1px dashed rgba(60,231,255,.5)}
/* 实战演示 */
.demo{display:grid;grid-template-columns:1fr 1fr;gap:30px;align-items:center}
.demo-media{position:relative;border-radius:var(--radius-lg);overflow:hidden;border:1px solid var(--line-strong);box-shadow:var(--shadow)}
.demo-media img{width:100%;height:100%;object-fit:cover;aspect-ratio:4/3;transition:transform .6s ease}
.demo-media:hover img{transform:scale(1.04)}
.demo-media figcaption{position:absolute;left:0;right:0;bottom:0;padding:16px 18px;font-size:13px;color:#e8eeff;background:linear-gradient(180deg,transparent,rgba(5,8,19,.92))}
.steps{counter-reset:step}
.steps li{position:relative;padding:0 0 20px 46px;counter-increment:step}
.steps li::before{content:counter(step);position:absolute;left:0;top:0;width:32px;height:32px;border-radius:10px;display:grid;place-items:center;font-size:14px;font-weight:900;color:#160c2a;background:linear-gradient(135deg,var(--gold-light),var(--gold));box-shadow:0 6px 18px rgba(255,180,0,.28)}
.steps li::after{content:"";position:absolute;left:15px;top:36px;bottom:2px;width:1px;background:linear-gradient(180deg,rgba(255,180,0,.45),rgba(255,180,0,0))}
.steps li:last-child{padding-bottom:0}
.steps li:last-child::after{display:none}
.steps h4{font-size:16px;font-weight:800;color:#eef2ff}
.steps p{margin-top:6px;font-size:14.5px;color:var(--muted)}
/* 路线时间线 */
.roadmap{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}
.road{position:relative;background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);padding:22px;transition:transform .24s ease,border-color .24s ease,box-shadow .24s ease}
.road:hover{transform:translateY(-5px);border-color:rgba(60,231,255,.34);box-shadow:var(--shadow-soft)}
.road-step{font-size:11.5px;font-weight:900;letter-spacing:2px;color:var(--cyan)}
.road h3{margin-top:10px;font-size:17px;font-weight:900;color:#f2f5ff}
.road p{margin-top:8px;font-size:14px;color:var(--muted)}
.road ul{margin-top:12px;display:grid;gap:7px}
.road ul li{font-size:13.5px;color:#c1cbea;padding-left:14px;position:relative}
.road ul li::before{content:"";position:absolute;left:0;top:9px;width:5px;height:5px;border-radius:50%;background:var(--gold)}
/* 案例 */
.case-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.case{background:linear-gradient(160deg,rgba(255,255,255,.07),rgba(255,255,255,.03));border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;transition:transform .24s ease,border-color .24s ease,box-shadow .24s ease}
.case:hover{transform:translateY(-4px);border-color:rgba(143,123,255,.42);box-shadow:var(--shadow-soft)}
.case img{width:100%;aspect-ratio:16/9;object-fit:cover}
.case-body{padding:18px 20px 20px}
.case-body p{font-size:14.5px;color:#dbe3ff;line-height:1.75}
.case-meta{display:flex;align-items:center;gap:10px;margin-top:14px;font-size:13px;color:var(--muted)}
.case-meta b{color:var(--gold-light);font-weight:800}
.quote{margin-top:22px;padding:22px 26px;border-radius:var(--radius-lg);border:1px solid rgba(60,231,255,.24);background:linear-gradient(120deg,rgba(60,231,255,.10),rgba(143,123,255,.10));font-size:15.5px;color:#dce6ff}
.quote b{color:#fff}
/* 误区 */
.pit-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
.pit{background:rgba(255,255,255,.035);border:1px solid var(--line);border-left:3px solid rgba(255,120,120,.55);border-radius:var(--radius);padding:20px;transition:background .24s ease,transform .24s ease}
.pit:hover{background:rgba(255,255,255,.07);transform:translateY(-3px)}
.pit h3{font-size:15.5px;font-weight:800;color:#ffe1e1}
.pit p{margin-top:8px;font-size:14px;color:var(--muted)}
/* FAQ */
.faq-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:16px}
.faq{background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);padding:18px 20px;transition:border-color .24s ease,background .24s ease}
.faq[open]{border-color:rgba(255,180,0,.4);background:rgba(255,180,0,.06)}
.faq summary{list-style:none;cursor:pointer;display:flex;align-items:flex-start;justify-content:space-between;gap:14px;font-size:15.5px;font-weight:800;color:#eff3ff}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{content:"+";flex:0 0 auto;width:22px;height:22px;border-radius:7px;display:grid;place-items:center;font-size:15px;font-weight:900;color:#0a0e22;background:linear-gradient(135deg,var(--gold-light),var(--gold))}
.faq[open] summary::after{content:"−"}
.faq p{margin-top:12px;font-size:14.5px;color:var(--muted);line-height:1.8}
/* 资讯列表 */
.news-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.news-card{display:flex;flex-direction:column;gap:10px;background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);padding:22px;transition:transform .24s ease,border-color .24s ease,box-shadow .24s ease,background .24s ease}
.news-card:hover{transform:translateY(-4px);border-color:rgba(60,231,255,.36);background:rgba(255,255,255,.07);box-shadow:var(--shadow-soft)}
.news-card h3{font-size:16.5px;font-weight:800;color:#f2f5ff;line-height:1.6}
.news-card p{font-size:14px;color:var(--muted);line-height:1.75}
.news-meta{display:flex;align-items:center;gap:10px;margin-top:auto;padding-top:12px;font-size:12.5px;color:#8f9bc0;border-top:1px dashed rgba(255,255,255,.12)}
.news-meta span{color:var(--gold-light)}
.news-empty{grid-column:1/-1;text-align:center;padding:38px 22px;border:1px dashed var(--line-strong);border-radius:var(--radius);color:var(--muted);font-size:15px}
.news-more{display:flex;justify-content:center;margin-top:30px}
/* 收口 CTA */
.cta-band{position:relative;overflow:hidden;border-radius:var(--radius-lg);border:1px solid rgba(255,180,0,.30);padding:48px 40px;text-align:center;background:linear-gradient(140deg,rgba(255,180,0,.16),rgba(143,123,255,.16) 55%,rgba(60,231,255,.12));box-shadow:var(--shadow)}
.cta-band::before{content:"";position:absolute;inset:0;background-image:url('/assets/images/backpic/back-5.webp');background-size:cover;background-position:center;opacity:.14;z-index:0}
.cta-band>*{position:relative;z-index:1}
.cta-band h2{font-size:clamp(22px,2.8vw,30px);font-weight:900;color:#fff;letter-spacing:.4px}
.cta-band p{margin:14px auto 0;max-width:640px;color:#cfd8f5;font-size:15.5px}
.cta-actions{display:flex;gap:14px;justify-content:center;flex-wrap:wrap;margin-top:28px}
/* ===== 页脚 ===== */
.site-footer{background:var(--bg-deep);border-top:1px solid var(--line);padding:56px 0 0;margin-top:20px}
.footer-top{display:grid;grid-template-columns:1.4fr .7fr .7fr .8fr;gap:34px;padding-bottom:40px}
.footer-note{margin-top:16px;font-size:14px;color:var(--muted);line-height:1.85;max-width:360px}
.footer-col h4{font-size:15px;font-weight:900;color:#eef2ff;margin-bottom:14px}
.footer-col a,.footer-col span{display:block;font-size:14px;color:var(--muted);padding:5px 0;transition:color .22s ease,transform .22s ease}
.footer-col a:hover{color:var(--gold-light);transform:translateX(3px)}
.footer-bottom{display:flex;align-items:center;justify-content:space-between;gap:14px;flex-wrap:wrap;border-top:1px solid var(--line);padding:20px 0;font-size:13px;color:#7f8bab}
/* ===== 响应式 ===== */
@media (max-width:1024px){
  .hero-grid{grid-template-columns:1fr;gap:36px}
  .hero{padding:52px 0 60px}
  .split{grid-template-columns:1fr}
  .roadmap{grid-template-columns:repeat(2,1fr)}
  .case-grid,.news-grid,.pit-grid{grid-template-columns:repeat(2,1fr)}
  .footer-top{grid-template-columns:1fr 1fr;gap:28px}
  .demo{grid-template-columns:1fr;gap:26px}
}
@media (max-width:768px){
  .nav-inner{flex-wrap:wrap;gap:12px;padding:12px 0}
  .nav-toggle{display:grid}
  .main-nav{display:none;order:4;width:100%;flex-direction:column;align-items:stretch;gap:6px;margin:6px 0 0;padding:12px;border-radius:var(--radius);border:1px solid var(--line);background:rgba(10,14,34,.96)}
  .main-nav.open{display:flex}
  .main-nav a{padding:11px 14px;font-size:15px;text-align:center}
  .nav-cta{margin-left:0;order:5;width:100%;text-align:center;margin-bottom:8px}
  .stat-strip{grid-template-columns:repeat(2,1fr)}
  .scene-grid{grid-template-columns:1fr}
  .faq-grid{grid-template-columns:1fr}
  .section{padding:56px 0}
  .section-tight{padding:44px 0}
  .cta-band{padding:36px 22px}
  .hero-actions .btn{width:100%}
  .footer-top{grid-template-columns:1fr;gap:24px}
  .footer-bottom{justify-content:center;text-align:center}
}
@media (max-width:520px){
  .roadmap,.case-grid,.news-grid,.pit-grid,.stat-strip{grid-template-columns:1fr}
  .hero h1{font-size:26px}
  .sec-title{font-size:21px}
  .dash{padding:18px}
  .card{padding:20px}
  .container{padding:0 16px}
}

/* roulang page: category2 */
:root{
 --bg:#070a18;
 --bg-soft:#0b1029;
 --bg-deep:#050813;
 --panel:rgba(255,255,255,.045);
 --panel-strong:rgba(255,255,255,.08);
 --line:rgba(255,255,255,.10);
 --line-strong:rgba(255,255,255,.18);
 --gold:#ffb400;
 --gold-light:#ffd166;
 --cyan:#3ce7ff;
 --violet:#8f7bff;
 --text:#eef2ff;
 --muted:#a2adcf;
 --radius:12px;
 --radius-lg:18px;
 --shadow:0 18px 44px rgba(0,0,0,.5);
 --shadow-soft:0 10px 26px rgba(0,0,0,.35);
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
 margin:0;
 font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
 background:var(--bg);
 color:var(--text);
 line-height:1.78;
 font-size:16px;
 -webkit-font-smoothing:antialiased;
 overflow-x:hidden;
}
img{display:block;max-width:100%;border:0}
a{color:inherit;text-decoration:none}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer}
input{font:inherit}
h1,h2,h3,h4{margin:0;line-height:1.32}
p{margin:0}
ul{margin:0;padding:0;list-style:none}
.container{width:100%;max-width:1180px;margin:0 auto;padding:0 22px}
/* ============ 导航 ============ */
.site-header{
 position:sticky;top:0;z-index:80;
 background:rgba(9,13,32,.88);
 backdrop-filter:blur(16px);
 -webkit-backdrop-filter:blur(16px);
 border-bottom:1px solid var(--line);
}
.nav-inner{display:flex;align-items:center;gap:22px;min-height:70px}
.brand{display:flex;align-items:center;gap:11px;flex:0 0 auto}
.brand-mark{
 width:42px;height:42px;border-radius:13px;display:grid;place-items:center;
 font-weight:900;font-size:19px;color:#1a1030;
 background:linear-gradient(135deg,var(--gold-light),var(--gold));
 box-shadow:0 8px 22px rgba(255,180,0,.34);
}
.brand-text{display:flex;flex-direction:column;line-height:1.2}
.brand-name{font-size:17px;font-weight:900;letter-spacing:.6px}
.brand-sub{font-size:11px;letter-spacing:2.4px;color:var(--muted);font-weight:500}
.main-nav{display:flex;align-items:center;gap:6px;margin-left:auto}
.main-nav a{
 padding:9px 15px;border-radius:10px;font-size:15px;color:#c6d0ef;
 transition:color .22s ease,background .22s ease,transform .22s ease;
}
.main-nav a:hover{color:#fff;background:rgba(255,255,255,.08)}
.main-nav a.active{
 color:#140b28;font-weight:800;
 background:linear-gradient(135deg,var(--gold-light),var(--gold));
 box-shadow:0 10px 24px rgba(255,180,0,.32);
}
.main-nav a:focus-visible,.nav-cta:focus-visible,.btn:focus-visible,.brand:focus-visible{
 outline:2px solid var(--cyan);outline-offset:3px;border-radius:10px;
}
.nav-cta{
 margin-left:10px;padding:10px 20px;border-radius:999px;font-size:14px;font-weight:800;color:#0a0e22;
 background:linear-gradient(135deg,#6ff2ff,#8f7bff);
 box-shadow:0 0 24px rgba(80,220,255,.35);
 transition:transform .22s ease,box-shadow .22s ease,filter .22s ease;
}
.nav-cta:hover{transform:translateY(-2px);box-shadow:0 0 34px rgba(80,220,255,.55);filter:brightness(1.06)}
.nav-toggle{
 display:none;margin-left:auto;width:44px;height:44px;border-radius:12px;
 border:1px solid var(--line);background:rgba(255,255,255,.06);place-items:center;
}
.nav-toggle span{display:block;width:18px;height:2px;background:#dfe7ff;border-radius:2px;position:relative}
.nav-toggle span::before,.nav-toggle span::after{content:"";position:absolute;left:0;width:18px;height:2px;background:#dfe7ff;border-radius:2px}
.nav-toggle span::before{top:-6px}
.nav-toggle span::after{top:6px}
/* ============ 按钮与通用 ============ */
.btn{
 display:inline-flex;align-items:center;justify-content:center;gap:9px;
 padding:14px 28px;border-radius:999px;font-size:15px;font-weight:800;
 transition:transform .24s ease,box-shadow .24s ease,background .24s ease,border-color .24s ease;
 border:1px solid transparent;letter-spacing:.4px;
}
.btn-gold{
 color:#160c2a;background:linear-gradient(135deg,var(--gold-light),var(--gold));
 box-shadow:0 12px 30px rgba(255,180,0,.35);
}
.btn-gold:hover{transform:translateY(-3px);box-shadow:0 18px 40px rgba(255,180,0,.52)}
.btn-ghost{
 color:#e6ecff;background:rgba(255,255,255,.06);border-color:var(--line-strong);
 backdrop-filter:blur(10px);
}
.btn-ghost:hover{background:rgba(255,255,255,.13);border-color:rgba(60,231,255,.55);transform:translateY(-3px)}
.btn-line{color:var(--gold-light);border-color:rgba(255,180,0,.5);background:rgba(255,180,0,.08)}
.btn-line:hover{background:rgba(255,180,0,.18);transform:translateY(-2px)}
.btn:active{transform:translateY(0) scale(.99)}
.chip{
 display:inline-flex;align-items:center;gap:6px;
 padding:4px 12px;border-radius:999px;font-size:12px;
 border:1px solid var(--line);color:#c9d3f2;background:rgba(255,255,255,.04);
}
.chip-gold{border-color:rgba(255,180,0,.42);color:var(--gold-light);background:rgba(255,180,0,.10)}
.chip-cyan{border-color:rgba(60,231,255,.38);color:#9df2ff;background:rgba(60,231,255,.09)}
.glass{
 background:var(--panel);
 border:1px solid var(--line);
 border-radius:var(--radius-lg);
 box-shadow:var(--shadow);
 backdrop-filter:blur(14px);
 -webkit-backdrop-filter:blur(14px);
}
/* ============ 面包屑 ============ */
.crumbs{
 background:var(--bg-deep);
 border-bottom:1px solid rgba(255,255,255,.06);
 font-size:13.5px;
 color:var(--muted);
}
.crumbs-inner{display:flex;align-items:center;gap:10px;flex-wrap:wrap;min-height:46px}
.crumbs-inner a{color:#c6d0ef;transition:color .2s ease}
.crumbs-inner a:hover{color:var(--gold-light)}
.crumb-sep{color:rgba(255,255,255,.25)}
.crumb-current{color:var(--gold-light);font-weight:700}
/* ============ Hero ============ */
.page-hero{position:relative;overflow:hidden;padding:66px 0 74px;isolation:isolate}
.hero-bg{
 position:absolute;inset:0;z-index:-2;
 background-image:url('/assets/images/backpic/back-2.webp');
 background-size:cover;background-position:center;
 opacity:.4;
}
.page-hero::before{
 content:"";position:absolute;inset:0;z-index:-1;
 background:
 radial-gradient(880px 400px at 10% 6%,rgba(143,123,255,.30),transparent 62%),
 radial-gradient(760px 380px at 90% 20%,rgba(60,231,255,.20),transparent 64%),
 linear-gradient(180deg,rgba(7,10,24,.66) 0%,rgba(7,10,24,.92) 62%,var(--bg) 100%);
}
.hero-grid{display:grid;grid-template-columns:1.08fr .92fr;gap:48px;align-items:center}
.hero-badge{
 display:inline-flex;align-items:center;gap:9px;
 padding:7px 16px;border-radius:999px;font-size:13px;font-weight:700;letter-spacing:1px;
 color:#ffdf9a;background:rgba(255,180,0,.13);border:1px solid rgba(255,180,0,.42);
 box-shadow:0 0 22px rgba(255,180,0,.18);
}
.hero-badge i{width:7px;height:7px;border-radius:50%;background:var(--gold);box-shadow:0 0 10px var(--gold);font-style:normal}
.page-hero h1{
 margin:22px 0 18px;
 font-size:clamp(28px,3.9vw,46px);
 line-height:1.26;
 letter-spacing:.6px;
 background:linear-gradient(120deg,#ffffff 24%,#ffe6ad 58%,#8fe9ff 100%);
 -webkit-background-clip:text;background-clip:text;color:transparent;
}
.hero-lead{color:#c3cdec;font-size:16.5px;max-width:620px}
.hero-points{display:flex;flex-wrap:wrap;gap:10px;margin-top:22px}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:30px}
/* 直播预告面板 */
.live-cover{position:relative;border-radius:var(--radius-lg) var(--radius-lg) 0 0;overflow:hidden}
.live-cover img{width:100%;height:214px;object-fit:cover;opacity:.92}
.live-cover::after{
 content:"";position:absolute;inset:0;
 background:linear-gradient(180deg,rgba(7,10,24,.05) 40%,rgba(7,10,24,.85) 100%);
}
.live-badge{
 position:absolute;top:14px;left:14px;z-index:2;
 display:inline-flex;align-items:center;gap:7px;
 padding:5px 13px;border-radius:999px;font-size:12px;font-weight:800;letter-spacing:1px;
 color:#12081f;background:linear-gradient(135deg,#7df3ff,#8f7bff);
 box-shadow:0 8px 20px rgba(60,231,255,.4);
}
.live-body{padding:20px 22px 24px}
.live-title{font-size:19px;font-weight:900;letter-spacing:.4px}
.live-sub{color:var(--muted);font-size:13.5px;margin-top:8px}
.countdown{display:grid;grid-template-columns:repeat(3,1fr);gap:10px;margin-top:16px}
.cd-cell{
 text-align:center;padding:11px 6px;border-radius:12px;
 background:rgba(255,255,255,.05);border:1px solid var(--line);
}
.cd-num{display:block;font-size:23px;font-weight:900;color:var(--gold-light);font-variant-numeric:tabular-nums;letter-spacing:1px}
.cd-label{font-size:11px;letter-spacing:2px;color:var(--muted)}
.subscribe{display:flex;gap:10px;margin-top:16px}
.subscribe input{
 flex:1;min-width:0;padding:12px 16px;border-radius:999px;
 background:rgba(255,255,255,.06);border:1px solid var(--line-strong);
 color:var(--text);font-size:14px;outline:none;
 transition:border-color .2s ease,box-shadow .2s ease,background .2s ease;
}
.subscribe input::placeholder{color:#7b87ad}
.subscribe input:focus{
 border-color:rgba(60,231,255,.7);
 box-shadow:0 0 0 3px rgba(60,231,255,.16);
 background:rgba(255,255,255,.1);
}
.subscribe .btn{padding:12px 22px;font-size:14px;flex:0 0 auto}
.form-hint{font-size:12.5px;color:#8b96bb;margin-top:10px}
.form-hint.is-ok{color:#8ef7c9}
.form-hint.is-warn{color:#ffb1b1}
/* ============ 板块通用 ============ */
.section{padding:76px 0;position:relative}
.section-alt{background:var(--bg-soft);border-top:1px solid rgba(255,255,255,.05);border-bottom:1px solid rgba(255,255,255,.05)}
.section-head{max-width:740px;margin-bottom:40px}
.section-tag{
 display:inline-flex;align-items:center;gap:8px;
 padding:5px 14px;border-radius:999px;font-size:12.5px;letter-spacing:1.6px;font-weight:700;
 color:#ffdf9a;background:rgba(255,180,0,.12);border:1px solid rgba(255,180,0,.35);
}
.section-title{
 font-size:clamp(23px,2.9vw,33px);margin:16px 0 12px;
 background:linear-gradient(120deg,#ffffff 30%,#ffe6ad 72%,#8fe9ff 100%);
 -webkit-background-clip:text;background-clip:text;color:transparent;
}
.section-sub{color:var(--muted);font-size:15.5px}
/* ============ 数据条 ============ */
.stat-strip{padding:0 0 18px}
.stat-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}
.stat-card{
 padding:22px 20px;border-radius:var(--radius);
 background:var(--panel);border:1px solid var(--line);
 transition:transform .25s ease,border-color .25s ease,box-shadow .25s ease;
}
.stat-card:hover{transform:translateY(-4px);border-color:rgba(255,180,0,.42);box-shadow:var(--shadow-soft)}
.stat-num{display:block;font-size:30px;font-weight:900;color:var(--gold-light);line-height:1.2}
.stat-num small{font-size:14px;color:#c8d2f0;font-weight:700;margin-left:3px}
.stat-label{display:block;margin-top:8px;font-size:13.5px;color:var(--muted)}
/* ============ 技巧分组 ============ */
.topic-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.topic-card{
 display:flex;flex-direction:column;overflow:hidden;
 border-radius:var(--radius-lg);border:1px solid var(--line);
 background:rgba(255,255,255,.045);
 transition:transform .28s ease,border-color .28s ease,box-shadow .28s ease;
}
.topic-card:hover{transform:translateY(-6px);border-color:rgba(60,231,255,.4);box-shadow:var(--shadow)}
.topic-thumb{position:relative;height:168px;overflow:hidden}
.topic-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .5s ease;opacity:.9}
.topic-card:hover .topic-thumb img{transform:scale(1.06)}
.topic-thumb::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(7,10,24,0) 35%,rgba(7,10,24,.9) 100%)}
.topic-body{padding:20px 22px 24px}
.topic-title{font-size:18px;font-weight:900}
.topic-desc{color:var(--muted);font-size:14px;margin-top:9px}
.topic-list{margin-top:14px;display:flex;flex-direction:column;gap:8px}
.topic-list li{position:relative;padding-left:18px;font-size:13.5px;color:#c3cdec}
.topic-list li::before{
 content:"";position:absolute;left:0;top:9px;width:7px;height:7px;border-radius:2px;
 background:linear-gradient(135deg,var(--gold-light),var(--gold));
}
/* ============ 适用场景 ============ */
.scene-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:20px}
.scene-card{
 display:flex;gap:18px;padding:24px;border-radius:var(--radius-lg);
 background:linear-gradient(135deg,rgba(255,255,255,.06),rgba(255,255,255,.02));
 border:1px solid var(--line);
 transition:border-color .25s ease,transform .25s ease,background .25s ease;
}
.scene-card:hover{transform:translateY(-4px);border-color:rgba(143,123,255,.5);background:linear-gradient(135deg,rgba(143,123,255,.14),rgba(60,231,255,.05))}
.scene-icon{
 flex:0 0 auto;width:48px;height:48px;border-radius:14px;display:grid;place-items:center;
 font-size:19px;font-weight:900;color:#160c2a;
 background:linear-gradient(135deg,var(--gold-light),var(--gold));
 box-shadow:0 10px 24px rgba(255,180,0,.28);
}
.scene-title{font-size:16.5px;font-weight:900}
.scene-desc{color:var(--muted);font-size:14px;margin-top:7px}
/* ============ 流程 ============ */
.step-list{display:grid;grid-template-columns:repeat(5,1fr);gap:16px;position:relative}
.step-item{
 padding:22px 18px;border-radius:var(--radius);
 background:rgba(255,255,255,.045);border:1px solid var(--line);
 transition:border-color .25s ease,transform .25s ease,box-shadow .25s ease;
}
.step-item:hover{transform:translateY(-5px);border-color:rgba(60,231,255,.45);box-shadow:var(--shadow-soft)}
.step-num{
 display:inline-grid;place-items:center;width:34px;height:34px;border-radius:11px;
 font-size:14px;font-weight:900;color:#0a0e22;
 background:linear-gradient(135deg,#7df3ff,#8f7bff);
 margin-bottom:12px;
}
.step-title{font-size:15.5px;font-weight:800}
.step-desc{color:var(--muted);font-size:13.5px;margin-top:8px}
/* ============ 对照表 ============ */
.table-wrap{overflow-x:auto;border-radius:var(--radius-lg);border:1px solid var(--line);background:rgba(255,255,255,.035)}
.compare-table{width:100%;border-collapse:collapse;min-width:620px}
.compare-table thead th{
 padding:16px 20px;text-align:left;font-size:13.5px;letter-spacing:1px;
 color:#ffdf9a;background:rgba(255,180,0,.08);border-bottom:1px solid var(--line);
 font-weight:800;white-space:nowrap;
}
.compare-table tbody td{
 padding:16px 20px;font-size:14px;color:#cbd5f3;border-bottom:1px solid rgba(255,255,255,.06);
}
.compare-table tbody tr:last-child td{border-bottom:0}
.compare-table tbody tr{transition:background .2s ease}
.compare-table tbody tr:hover{background:rgba(255,255,255,.05)}
.compare-table td:first-child{color:#fff;font-weight:700}
/* ============ 反馈 ============ */
.quote-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.quote-card{
 padding:26px 24px;border-radius:var(--radius-lg);
 background:rgba(255,255,255,.045);border:1px solid var(--line);
 display:flex;flex-direction:column;gap:14px;
 transition:transform .25s ease,border-color .25s ease;
}
.quote-card:hover{transform:translateY(-4px);border-color:rgba(255,180,0,.4)}
.quote-text{font-size:14.8px;color:#d6ddf6;line-height:1.85}
.quote-meta{display:flex;align-items:center;gap:11px;margin-top:auto}
.avatar{
 width:38px;height:38px;border-radius:50%;display:grid;place-items:center;
 font-size:14px;font-weight:900;color:#160c2a;
 background:linear-gradient(135deg,var(--gold-light),var(--gold));
}
.quote-name{font-size:14px;font-weight:800}
.quote-role{font-size:12.5px;color:var(--muted)}
/* ============ 资讯列表 ============ */
.news-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.news-card{
 display:flex;flex-direction:column;gap:12px;
 padding:24px;border-radius:var(--radius-lg);
 background:rgba(255,255,255,.045);border:1px solid var(--line);
 transition:transform .25s ease,border-color .25s ease,box-shadow .25s ease;
}
.news-card:hover{transform:translateY(-5px);border-color:rgba(60,231,255,.45);box-shadow:var(--shadow-soft)}
.news-card h3{font-size:16.5px;font-weight:800;line-height:1.55}
.news-card p{font-size:13.8px;color:var(--muted);display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden}
.news-date{font-size:12.5px;color:#8b96bb;letter-spacing:.5px}
.empty-note{
 padding:34px 26px;border-radius:var(--radius-lg);border:1px dashed var(--line-strong);
 color:var(--muted);font-size:14.5px;text-align:center;background:rgba(255,255,255,.03);
}
/* ============ FAQ ============ */
.faq-list{display:flex;flex-direction:column;gap:14px;max-width:900px}
.faq-item{
 border-radius:var(--radius);border:1px solid var(--line);
 background:rgba(255,255,255,.04);overflow:hidden;
 transition:border-color .25s ease,background .25s 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;
 display:flex;align-items:center;justify-content:space-between;gap:16px;
 font-size:15.5px;font-weight:800;color:#eef2ff;
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::after{
 content:"+";flex:0 0 auto;font-size:20px;line-height:1;color:var(--gold-light);
 transition:transform .25s ease;
}
.faq-item[open] summary::after{transform:rotate(45deg)}
.faq-item summary:focus-visible{outline:2px solid var(--cyan);outline-offset:-4px}
.faq-answer{padding:0 22px 20px;color:var(--muted);font-size:14.3px}
/* ============ CTA ============ */
.cta-band{position:relative;overflow:hidden;padding:66px 0}
.cta-band::before{
 content:"";position:absolute;inset:0;
 background-image:url('/assets/images/backpic/back-5.webp');
 background-size:cover;background-position:center;opacity:.24;
}
.cta-band::after{
 content:"";position:absolute;inset:0;
 background:
 radial-gradient(760px 320px at 18% 20%,rgba(143,123,255,.35),transparent 65%),
 radial-gradient(700px 320px at 82% 80%,rgba(255,180,0,.22),transparent 66%),
 linear-gradient(180deg,rgba(7,10,24,.9),rgba(7,10,24,.96));
}
.cta-inner{position:relative;z-index:1;display:flex;align-items:center;justify-content:space-between;gap:32px;flex-wrap:wrap}
.cta-title{font-size:clamp(22px,2.8vw,32px);font-weight:900;letter-spacing:.5px}
.cta-sub{color:#c3cdec;font-size:15px;margin-top:12px;max-width:620px}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px}
/* ============ 页脚 ============ */
.site-footer{background:var(--bg-deep);border-top:1px solid rgba(255,255,255,.08);padding:60px 0 26px}
.footer-top{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:34px;padding-bottom:38px}
.footer-note{color:var(--muted);font-size:14px;margin-top:16px;max-width:420px}
.footer-col h4{font-size:14.5px;font-weight:800;color:#fff;margin-bottom:14px;letter-spacing:.6px}
.footer-col a,.footer-col span{display:block;font-size:13.8px;color:var(--muted);padding:6px 0;transition:color .2s ease,transform .2s ease}
.footer-col a:hover{color:var(--gold-light);transform:translateX(3px)}
.footer-bottom{
 display:flex;align-items:center;justify-content:space-between;gap:14px;flex-wrap:wrap;
 padding-top:22px;border-top:1px solid rgba(255,255,255,.08);
 font-size:13px;color:#7f8ab0;
}
/* ============ 响应式 ============ */
@media (max-width:1024px){
 .hero-grid{grid-template-columns:1fr;gap:38px}
 .stat-grid{grid-template-columns:repeat(2,1fr)}
 .topic-grid{grid-template-columns:repeat(2,1fr)}
 .step-list{grid-template-columns:repeat(3,1fr)}
 .quote-grid,.news-grid{grid-template-columns:repeat(2,1fr)}
 .footer-top{grid-template-columns:1fr 1fr;gap:28px}
}
@media (max-width:900px){
 .nav-inner{flex-wrap:wrap;padding:12px 0;gap:12px}
 .nav-toggle{display:grid}
 .main-nav{
  display:none;order:3;width:100%;flex-direction:column;align-items:stretch;
  margin-left:0;gap:4px;
 }
 .main-nav.is-open{display:flex}
 .main-nav a{width:100%;padding:12px 16px}
 .nav-cta{order:4;width:100%;text-align:center;margin-left:0}
 .scene-grid{grid-template-columns:1fr}
 .step-list{grid-template-columns:repeat(2,1fr)}
}
@media (max-width:768px){
 .section{padding:58px 0}
 .page-hero{padding:48px 0 56px}
 .topic-grid{grid-template-columns:1fr}
 .quote-grid,.news-grid{grid-template-columns:1fr}
 .stat-grid{grid-template-columns:repeat(2,1fr)}
 .cta-inner{flex-direction:column;align-items:flex-start}
 .subscribe{flex-direction:column}
 .subscribe .btn{width:100%}
}
@media (max-width:520px){
 .container{padding:0 16px}
 .stat-grid{grid-template-columns:1fr}
 .step-list{grid-template-columns:1fr}
 .hero-actions .btn,.cta-actions .btn{width:100%}
 .footer-top{grid-template-columns:1fr}
 .footer-bottom{flex-direction:column;align-items:flex-start;gap:8px}
 .live-cover img{height:180px}
 .brand-name{font-size:15.5px}
}

/* roulang page: category3 */
:root{
  --bg:#070a18;
  --bg-soft:#0b1029;
  --bg-deep:#050813;
  --panel:rgba(255,255,255,.045);
  --panel-strong:rgba(255,255,255,.08);
  --line:rgba(255,255,255,.10);
  --line-strong:rgba(255,255,255,.18);
  --gold:#ffb400;
  --gold-light:#ffd166;
  --cyan:#3ce7ff;
  --violet:#8f7bff;
  --text:#eef2ff;
  --muted:#a2adcf;
  --radius:12px;
  --radius-lg:18px;
  --shadow:0 18px 44px rgba(0,0,0,.5);
  --shadow-soft:0 10px 26px rgba(0,0,0,.35);
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
  background:var(--bg);
  color:var(--text);
  line-height:1.78;
  font-size:16px;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{display:block;max-width:100%;border:0}
a{color:inherit;text-decoration:none}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer}
h1,h2,h3,h4{margin:0}
p{margin:0}
.container{width:100%;max-width:1180px;margin:0 auto;padding:0 22px}

/* ============ 顶部信息条 ============ */
.topbar{background:var(--bg-deep);border-bottom:1px solid rgba(255,255,255,.06);font-size:13px;color:var(--muted)}
.topbar-inner{display:flex;align-items:center;justify-content:space-between;gap:14px;min-height:42px;flex-wrap:wrap}
.topbar-note{display:flex;align-items:center;gap:9px;letter-spacing:.4px}
.topbar-note .dot{width:7px;height:7px;border-radius:50%;background:var(--cyan);box-shadow:0 0 12px var(--cyan)}
.topbar-chips{display:flex;align-items:center;gap:8px;flex-wrap:wrap}
.chip{display:inline-flex;align-items:center;gap:6px;padding:4px 12px;border-radius:999px;font-size:12px;border:1px solid var(--line);color:#c9d3f2;background:rgba(255,255,255,.04)}
.chip-gold{border-color:rgba(255,180,0,.42);color:var(--gold-light);background:rgba(255,180,0,.10)}
.chip-cyan{border-color:rgba(60,231,255,.38);color:#9df2ff;background:rgba(60,231,255,.09)}

/* ============ 导航 ============ */
.site-header{
  position:sticky;top:0;z-index:80;
  background:rgba(9,13,32,.88);
  backdrop-filter:blur(16px);
  -webkit-backdrop-filter:blur(16px);
  border-bottom:1px solid var(--line);
}
.nav-inner{display:flex;align-items:center;gap:22px;min-height:70px}
.brand{display:flex;align-items:center;gap:11px;flex:0 0 auto}
.brand-mark{
  width:42px;height:42px;border-radius:13px;display:grid;place-items:center;
  font-weight:900;font-size:19px;color:#1a1030;
  background:linear-gradient(135deg,var(--gold-light),var(--gold));
  box-shadow:0 8px 22px rgba(255,180,0,.34);
}
.brand-text{display:flex;flex-direction:column;line-height:1.2}
.brand-name{font-size:17px;font-weight:900;letter-spacing:.6px}
.brand-sub{font-size:11px;letter-spacing:2.4px;color:var(--muted);font-weight:500}
.main-nav{display:flex;align-items:center;gap:6px;margin-left:auto}
.main-nav a{padding:9px 15px;border-radius:10px;font-size:15px;color:#c6d0ef;transition:color .22s ease,background .22s ease,transform .22s ease}
.main-nav a:hover{color:#fff;background:rgba(255,255,255,.08)}
.main-nav a.active{
  color:#140b28;font-weight:800;
  background:linear-gradient(135deg,var(--gold-light),var(--gold));
  box-shadow:0 10px 24px rgba(255,180,0,.32);
}
.nav-cta{
  margin-left:10px;padding:10px 20px;border-radius:999px;font-size:14px;font-weight:800;color:#0a0e22;
  background:linear-gradient(135deg,#6ff2ff,#8f7bff);
  box-shadow:0 0 24px rgba(80,220,255,.35);
  transition:transform .22s ease,box-shadow .22s ease,filter .22s ease;
}
.nav-cta:hover{transform:translateY(-2px);box-shadow:0 0 34px rgba(80,220,255,.55);filter:brightness(1.06)}
.nav-toggle{display:none;margin-left:auto;width:44px;height:44px;border-radius:12px;border:1px solid var(--line);background:rgba(255,255,255,.06);place-items:center}
.nav-toggle span{display:block;width:18px;height:2px;background:#dfe7ff;border-radius:2px;position:relative}
.nav-toggle span::before,.nav-toggle span::after{content:"";position:absolute;left:0;width:18px;height:2px;background:#dfe7ff;border-radius:2px}
.nav-toggle span::before{top:-6px}
.nav-toggle span::after{top:6px}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:9px;
  padding:14px 28px;border-radius:999px;font-size:15px;font-weight:800;
  transition:transform .24s ease,box-shadow .24s ease,background .24s ease,border-color .24s ease;
  border:1px solid transparent;letter-spacing:.4px;
}
.btn-gold{color:#160c2a;background:linear-gradient(135deg,var(--gold-light),var(--gold));box-shadow:0 12px 30px rgba(255,180,0,.35)}
.btn-gold:hover{transform:translateY(-3px);box-shadow:0 18px 40px rgba(255,180,0,.52)}
.btn-ghost{color:#e6ecff;background:rgba(255,255,255,.06);border-color:var(--line-strong);backdrop-filter:blur(10px)}
.btn-ghost:hover{background:rgba(255,255,255,.13);border-color:rgba(60,231,255,.55);transform:translateY(-3px)}
.btn:active{transform:translateY(0) scale(.99)}
.btn:focus-visible{outline:2px solid var(--cyan);outline-offset:3px}

/* ============ Hero ============ */
.hero{position:relative;overflow:hidden;padding:64px 0 66px;isolation:isolate}
.hero-bg{
  position:absolute;inset:0;z-index:-2;
  background-image:url('/assets/images/backpic/back-4.webp');
  background-size:cover;background-position:center;
  opacity:.36;
}
.hero::before{
  content:"";position:absolute;inset:0;z-index:-1;
  background:
    radial-gradient(900px 420px at 12% 8%,rgba(143,123,255,.30),transparent 62%),
    radial-gradient(760px 380px at 88% 18%,rgba(60,231,255,.22),transparent 64%),
    linear-gradient(180deg,rgba(7,10,24,.62) 0%,rgba(7,10,24,.92) 60%,var(--bg) 100%);
}
.crumb{display:flex;align-items:center;gap:8px;font-size:13px;color:var(--muted);margin-bottom:16px}
.crumb a:hover{color:var(--gold-light)}
.crumb .sep{color:rgba(255,255,255,.28)}
.crumb .current{color:#dfe7ff}
.hero-grid{display:grid;grid-template-columns:1.12fr .88fr;gap:48px;align-items:center}
.hero-badge{
  display:inline-flex;align-items:center;gap:9px;
  padding:7px 16px;border-radius:999px;font-size:13px;font-weight:700;letter-spacing:1px;
  color:#ffdf9a;background:rgba(255,180,0,.13);border:1px solid rgba(255,180,0,.42);
  box-shadow:0 0 22px rgba(255,180,0,.18);
}
.hero-badge i{width:7px;height:7px;border-radius:50%;background:var(--gold);box-shadow:0 0 10px var(--gold);font-style:normal}
.hero h1{
  margin:20px 0 18px;
  font-size:clamp(30px,4.2vw,50px);
  line-height:1.24;
  letter-spacing:1px;
  background:linear-gradient(120deg,#ffffff 24%,#ffe6ad 58%,#8fe9ff 100%);
  -webkit-background-clip:text;background-clip:text;color:transparent;
}
.hero-lead{color:#c3cdec;font-size:16.5px;max-width:640px;margin-bottom:26px}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-bottom:26px}
.hero-points{display:flex;flex-wrap:wrap;gap:10px 20px;list-style:none;padding:0;margin:0;font-size:13.5px;color:var(--muted)}
.hero-points li{display:flex;align-items:center;gap:7px}
.hero-points li::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--gold);box-shadow:0 0 8px var(--gold)}
.hero-panel{
  background:linear-gradient(160deg,rgba(255,255,255,.10),rgba(255,255,255,.03));
  border:1px solid var(--line-strong);
  border-radius:var(--radius-lg);
  padding:24px;
  box-shadow:var(--shadow);
  backdrop-filter:blur(18px);
  -webkit-backdrop-filter:blur(18px);
}
.hero-panel h2{font-size:14px;letter-spacing:1.6px;color:#dbe4ff;margin-bottom:14px}
.panel-row{display:flex;justify-content:space-between;gap:12px;padding:11px 0;border-bottom:1px dashed rgba(255,255,255,.12);font-size:14px}
.panel-row:last-of-type{border-bottom:0}
.panel-row span:first-child{color:var(--muted)}
.panel-row span:last-child{color:#fff;font-weight:700;text-align:right}
.hero-panel img{width:100%;aspect-ratio:16/9;object-fit:cover;border-radius:12px;margin-top:16px;border:1px solid var(--line)}

/* ============ 板块 ============ */
.section{padding:76px 0;position:relative}
.section-alt{background:linear-gradient(180deg,#0b1029,#070a18);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.section-head{max-width:760px;margin-bottom:36px}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  padding:5px 13px;border-radius:999px;font-size:12px;letter-spacing:1.6px;
  color:var(--gold-light);background:rgba(255,180,0,.10);border:1px solid rgba(255,180,0,.32);
  margin-bottom:14px;
}
.section-head h2{font-size:clamp(23px,3vw,34px);line-height:1.35;margin-bottom:12px}
.section-head p{color:var(--muted);font-size:15.5px}

/* 网格与卡片 */
.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.grid-2{display:grid;grid-template-columns:repeat(2,1fr);gap:20px}
.card{
  background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);
  padding:26px;box-shadow:var(--shadow-soft);
  transition:transform .25s ease,border-color .25s ease,background .25s ease,box-shadow .25s ease;
}
.card:hover{transform:translateY(-4px);border-color:rgba(60,231,255,.34);background:var(--panel-strong);box-shadow:0 18px 40px rgba(0,0,0,.45)}
.card-icon{
  width:44px;height:44px;border-radius:12px;display:grid;place-items:center;
  font-weight:900;font-size:17px;color:#140b28;
  background:linear-gradient(135deg,var(--gold-light),var(--gold));
  margin-bottom:16px;box-shadow:0 10px 22px rgba(255,180,0,.28);
}
.card h3{font-size:18px;margin-bottom:10px}
.card p{color:var(--muted);font-size:14.5px}

/* 步骤 */
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}
.step{
  position:relative;padding:26px 22px 24px;background:var(--panel);
  border:1px solid var(--line);border-radius:var(--radius);
  transition:transform .25s ease,border-color .25s ease,background .25s ease;
}
.step:hover{transform:translateY(-4px);border-color:rgba(255,180,0,.42);background:var(--panel-strong)}
.step-num{
  display:block;font-size:30px;font-weight:900;line-height:1;margin-bottom:14px;
  color:transparent;-webkit-text-stroke:1px rgba(255,180,0,.75);
}
.step h3{font-size:16.5px;margin-bottom:8px}
.step p{color:var(--muted);font-size:14px}

/* 设备适配 */
.spec-layout{display:grid;grid-template-columns:.85fr 1.15fr;gap:24px;align-items:start}
.spec-figure{margin:0;border-radius:var(--radius-lg);overflow:hidden;border:1px solid var(--line);background:var(--panel);box-shadow:var(--shadow-soft)}
.spec-figure img{width:100%;aspect-ratio:4/3;object-fit:cover}
.spec-figure figcaption{font-size:13px;color:var(--muted);padding:12px 16px;border-top:1px solid var(--line)}
.spec-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:16px}
.spec{background:rgba(255,255,255,.04);border:1px solid var(--line);border-radius:var(--radius);padding:18px 20px;transition:border-color .22s ease,background .22s ease}
.spec:hover{border-color:rgba(60,231,255,.35);background:rgba(255,255,255,.07)}
.spec-label{font-size:12.5px;letter-spacing:1px;color:var(--muted);margin-bottom:8px}
.spec-value{font-size:16.5px;font-weight:800;color:#fff;line-height:1.5}

/* 规则 */
.rule-list{display:grid;grid-template-columns:repeat(2,1fr);gap:18px}
.rule{
  display:flex;gap:16px;padding:22px;border-radius:var(--radius);
  border:1px solid var(--line);
  background:linear-gradient(140deg,rgba(143,123,255,.14),rgba(255,255,255,.03));
  transition:transform .25s ease,border-color .25s ease;
}
.rule:hover{transform:translateY(-3px);border-color:rgba(143,123,255,.5)}
.rule-num{
  flex:0 0 40px;height:40px;border-radius:11px;display:grid;place-items:center;
  font-weight:900;font-size:15px;color:#0a0e22;
  background:linear-gradient(135deg,#6ff2ff,#8f7bff);
}
.rule h3{font-size:16.5px;margin-bottom:6px}
.rule p{color:var(--muted);font-size:14px}

/* 时间线 */
.timeline{position:relative;padding-left:26px}
.timeline::before{content:"";position:absolute;left:7px;top:6px;bottom:6px;width:2px;background:linear-gradient(180deg,var(--gold),rgba(60,231,255,.28))}
.tl-item{position:relative;padding:0 0 26px 8px}
.tl-item:last-child{padding-bottom:0}
.tl-item::before{content:"";position:absolute;left:-25px;top:8px;width:10px;height:10px;border-radius:50%;background:var(--gold);box-shadow:0 0 12px rgba(255,180,0,.8)}
.tl-item h3{font-size:16px;margin-bottom:6px}
.tl-item p{color:var(--muted);font-size:14.5px}
.tl-tag{display:inline-block;font-size:11.5px;padding:2px 10px;border-radius:999px;margin-right:8px;color:#0a0e22;background:linear-gradient(135deg,var(--gold-light),var(--gold));font-weight:800;vertical-align:middle}

/* 资讯列表 */
.news-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.news-card{
  display:block;padding:22px;background:var(--panel);border:1px solid var(--line);
  border-radius:var(--radius);transition:transform .25s ease,border-color .25s ease,background .25s ease;
}
.news-card:hover{transform:translateY(-4px);border-color:rgba(60,231,255,.35);background:var(--panel-strong)}
.news-meta{display:flex;align-items:center;gap:10px;font-size:12px;color:var(--muted);margin-bottom:10px;flex-wrap:wrap}
.news-meta .tag{color:var(--gold-light);border:1px solid rgba(255,180,0,.3);background:rgba(255,180,0,.1);padding:1px 9px;border-radius:999px}
.news-card h3{font-size:16px;line-height:1.55;margin-bottom:8px}
.news-card p{font-size:14px;color:var(--muted);display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden}
.empty-note{padding:28px;border:1px dashed var(--line-strong);border-radius:var(--radius);color:var(--muted);font-size:14.5px;background:rgba(255,255,255,.03)}

/* FAQ */
.faq-list{display:grid;gap:12px;max-width:920px}
.faq-item{background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);padding:0 20px;transition:border-color .25s ease,background .25s ease}
.faq-item[open]{border-color:rgba(255,180,0,.42);background:rgba(255,180,0,.06)}
.faq-item summary{
  list-style:none;cursor:pointer;padding:17px 0;font-weight:700;font-size:15.5px;
  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;line-height:1;color:var(--gold);transition:transform .25s ease}
.faq-item[open] summary::after{transform:rotate(45deg)}
.faq-item summary:focus-visible{outline:2px solid var(--cyan);outline-offset:4px;border-radius:8px}
.faq-item p{color:var(--muted);font-size:14.5px;padding-bottom:18px}

/* CTA */
.cta-band{
  position:relative;overflow:hidden;border-radius:var(--radius-lg);
  padding:54px 40px;text-align:center;
  background:linear-gradient(135deg,rgba(143,123,255,.30),rgba(60,231,255,.18));
  border:1px solid rgba(255,255,255,.16);
  box-shadow:var(--shadow);
  isolation:isolate;
}
.cta-band::before{
  content:"";position:absolute;inset:0;z-index:-1;
  background-image:url('/assets/images/backpic/back-2.webp');
  background-size:cover;background-position:center;opacity:.16;
}
.cta-band h2{font-size:clamp(22px,3vw,32px);line-height:1.4;margin-bottom:14px}
.cta-band p{color:#d3dcf7;max-width:720px;margin:0 auto 26px;font-size:15.5px}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px;justify-content:center}

/* ============ 页脚 ============ */
.site-footer{background:var(--bg-deep);border-top:1px solid var(--line);padding:56px 0 0}
.footer-top{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:32px;padding-bottom:40px}
.footer-note{color:var(--muted);font-size:14px;margin-top:16px;max-width:340px}
.footer-col h4{font-size:14px;letter-spacing:.5px;margin-bottom:14px;color:#fff}
.footer-col a,.footer-col span{display:block;color:var(--muted);font-size:14px;margin-bottom:10px;transition:color .22s ease}
.footer-col a:hover{color:var(--gold-light)}
.footer-bottom{
  display:flex;align-items:center;justify-content:space-between;gap:14px;flex-wrap:wrap;
  padding:18px 0;border-top:1px solid rgba(255,255,255,.08);
  font-size:13px;color:#7f8ab0;
}

/* ============ 响应式 ============ */
@media (max-width:1024px){
  .hero-grid{grid-template-columns:1fr;gap:34px}
  .grid-3{grid-template-columns:repeat(2,1fr)}
  .steps{grid-template-columns:repeat(2,1fr)}
  .news-grid{grid-template-columns:repeat(2,1fr)}
  .spec-layout{grid-template-columns:1fr}
  .footer-top{grid-template-columns:1fr 1fr}
}
@media (max-width:860px){
  .main-nav{
    position:fixed;top:70px;left:0;right:0;
    flex-direction:column;align-items:stretch;gap:4px;
    padding:16px 22px 22px;
    background:rgba(9,13,32,.98);
    border-bottom:1px solid var(--line);
    display:none;
  }
  .main-nav.open{display:flex}
  .main-nav a{padding:12px 14px}
  .nav-toggle{display:grid}
  .nav-cta{display:none}
  .rule-list{grid-template-columns:1fr}
}
@media (max-width:640px){
  .grid-3,.grid-2,.steps,.news-grid,.spec-grid{grid-template-columns:1fr}
  .hero{padding:52px 0 44px}
  .section{padding:56px 0}
  .cta-band{padding:40px 22px}
  .footer-top{grid-template-columns:1fr;gap:26px}
  .footer-bottom{flex-direction:column;align-items:flex-start;gap:6px}
}