/* roulang page: index */
:root{
  --ink:#141a2e;
  --ink2:#39415a;
  --muted:#6d7488;
  --paper:#f4f5f8;
  --card:#ffffff;
  --c-main:#e8523a;
  --c-sub:#12897a;
  --line:#e3e6ee;
  --r-lg:18px;
  --r-sm:10px;
  --shadow:0 12px 28px rgba(20,26,46,.12);
  --sp:clamp(44px,6vw,76px);
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;padding-bottom:78px;
  font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;
  font-size:16px;line-height:1.7;color:var(--ink);background:var(--paper);
  -webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4,p{margin:0}
ul{margin:0;padding:0;list-style:none}
a{color:inherit;text-decoration:none}
img{display:block;max-width:100%}
button{font:inherit}
a:focus-visible,button:focus-visible,input:focus-visible{outline:3px solid rgba(232,82,58,.55);outline-offset:2px}
.mrbc-wrap{max-width:1200px;margin:0 auto;padding:0 24px}

/* ---------- 顶栏 ---------- */
.mrbc-top{position:sticky;top:0;z-index:60;background:#0e1326;color:#fff;border-bottom:1px solid rgba(255,255,255,.10)}
.mrbc-top-in{display:flex;align-items:center;gap:22px;min-height:66px}
.mrbc-brand{display:flex;align-items:center;gap:10px;font-weight:700;font-size:17px;flex:none}
.mrbc-logo{width:34px;height:34px;border-radius:9px;background:linear-gradient(135deg,#e8523a,#f0a35e);display:grid;place-items:center;font-size:15px;font-weight:800;color:#fff}
.mrbc-nav{display:flex;gap:4px;margin-left:auto;overflow-x:auto;scrollbar-width:none}
.mrbc-nav::-webkit-scrollbar{display:none}
.mrbc-nav a{padding:9px 14px;border-radius:8px;font-size:14.5px;color:#c3cade;white-space:nowrap;transition:background .2s,color .2s;min-height:44px;display:inline-flex;align-items:center}
.mrbc-nav a:hover{color:#fff;background:rgba(255,255,255,.10)}
.mrbc-nav a.mrbc-on{color:#fff;background:rgba(232,82,58,.92)}
.mrbc-pill{flex:none;font-size:12.5px;border:1px solid rgba(255,255,255,.25);border-radius:999px;padding:5px 12px;color:#dfe4f1}

/* ---------- 首屏 ---------- */
.mrbc-hero{position:relative;overflow:hidden;background:#0e1326;color:#fff}
.mrbc-hero-bg{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;opacity:.44}
.mrbc-hero::after{content:"";position:absolute;inset:0;background:linear-gradient(104deg,rgba(10,14,30,.95) 18%,rgba(10,14,30,.58) 62%,rgba(10,14,30,.88))}
.mrbc-hero-in{position:relative;z-index:2;max-width:700px;padding:clamp(54px,8vw,100px) 0 clamp(46px,7vw,86px)}
.mrbc-kicker{display:inline-block;font-size:13px;letter-spacing:2px;color:#ffb9a8;border:1px solid rgba(255,255,255,.30);border-radius:999px;padding:5px 14px;margin-bottom:20px}
.mrbc-hero h1{font-size:clamp(28px,4.6vw,46px);line-height:1.24;letter-spacing:-1px}
.mrbc-hero h1 em{font-style:normal;color:#ff8163}
.mrbc-lead{color:#c8cee0;font-size:15.5px;margin-top:18px;max-width:580px}
.mrbc-search{display:flex;gap:10px;margin-top:26px;max-width:520px}
.mrbc-search input{flex:1;min-width:0;min-height:48px;border-radius:var(--r-sm);border:1px solid rgba(255,255,255,.22);background:rgba(255,255,255,.10);color:#fff;padding:0 16px;font-size:15px}
.mrbc-search input::placeholder{color:#9aa3bd}
.mrbc-search input:focus{border-color:var(--c-main)}
.mrbc-search button{min-height:48px;padding:0 24px;border:0;border-radius:var(--r-sm);background:var(--c-main);color:#fff;font-weight:600;cursor:pointer;transition:background .2s}
.mrbc-search button:hover{background:#d6452d}
.mrbc-herotip{margin-top:18px;font-size:13.5px;color:#93a0bd;letter-spacing:1px}

/* ---------- 区块通用 ---------- */
.mrbc-sec{padding:var(--sp) 0}
.mrbc-sec--w{background:var(--card)}
.mrbc-head{display:flex;align-items:flex-end;justify-content:space-between;gap:22px;flex-wrap:wrap;margin-bottom:30px}
.mrbc-h2{font-size:clamp(21px,3vw,29px);letter-spacing:-.5px;line-height:1.35}
.mrbc-sub{color:var(--muted);font-size:14.5px;margin-top:8px;max-width:660px}

/* ---------- 指标卡 ---------- */
.mrbc-kpi{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}
.mrbc-kpi li{background:var(--paper);border:1px solid var(--line);border-radius:var(--r-lg);padding:24px 22px;transition:transform .25s,box-shadow .25s}
.mrbc-kpi li:hover{transform:translateY(-3px);box-shadow:var(--shadow)}
.mrbc-kpi b{display:block;font-size:17px;color:var(--c-main);margin-bottom:8px}
.mrbc-kpi span{font-size:14px;color:var(--ink2);line-height:1.65;display:block}

/* ---------- 分类频道 ---------- */
.mrbc-cats{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.mrbc-cats li{background:var(--card);border:1px solid var(--line);border-radius:var(--r-lg);padding:22px}
.mrbc-cat{display:block;font-weight:700;font-size:17px;margin-bottom:8px}
.mrbc-cat::before{content:"";display:inline-block;width:6px;height:6px;border-radius:50%;background:var(--c-sub);vertical-align:middle;margin-right:9px}
.mrbc-cats p{font-size:14px;color:var(--muted);line-height:1.7}

/* ---------- 卡片 ---------- */
.mrbc-grid{display:grid;grid-template-columns:repeat(6,1fr);gap:20px}
.mrbc-card{background:var(--card);border:1px solid var(--line);border-radius:var(--r-lg);overflow:hidden;transition:transform .25s,box-shadow .25s}
.mrbc-card:hover{transform:translateY(-4px);box-shadow:var(--shadow)}
.mrbc-thumb{position:relative;aspect-ratio:2/3;overflow:hidden;background:#dfe3ec}
.mrbc-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .4s}
.mrbc-card:hover .mrbc-thumb img{transform:scale(1.04)}
.mrbc-badge{position:absolute;top:8px;left:8px;font-size:11px;line-height:1.4;background:rgba(14,19,38,.84);color:#fff;padding:3px 8px;border-radius:6px}
.mrbc-score{position:absolute;right:8px;bottom:8px;font-size:12px;font-weight:700;color:#ffd166;background:rgba(14,19,38,.84);padding:2px 7px;border-radius:6px}
.mrbc-card h3{font-size:15px;padding:12px 12px 0;line-height:1.45}
.mrbc-meta{font-size:12.5px;color:var(--muted);padding:3px 12px 14px}

/* ---------- 排行榜 ---------- */
.mrbc-rank{display:grid;grid-template-columns:repeat(2,1fr);gap:12px 26px}
.mrbc-rank li{display:flex;align-items:center;gap:14px;background:var(--card);border:1px solid var(--line);border-radius:12px;padding:12px 16px}
.mrbc-no{font-size:18px;font-weight:800;color:#c8cddc;min-width:26px}
.mrbc-rank li:nth-child(-n+3) .mrbc-no{color:var(--c-main)}
.mrbc-rank b{font-size:15px;font-weight:600}
.mrbc-cat-tag{font-size:12px;color:var(--c-sub);background:rgba(18,137,122,.10);border-radius:6px;padding:2px 8px;margin-left:8px}
.mrbc-hot{margin-left:auto;font-size:12.5px;color:var(--muted);white-space:nowrap}

/* ---------- 专题 ---------- */
.mrbc-topics{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.mrbc-topics li{background:var(--card);border:1px solid var(--line);border-radius:var(--r-lg);padding:26px 22px;position:relative;overflow:hidden}
.mrbc-topics li::before{content:"";position:absolute;left:0;top:0;bottom:0;width:4px;background:var(--c-main)}
.mrbc-topics b{display:block;font-size:17px;margin-bottom:8px}
.mrbc-topics p{font-size:14px;color:var(--muted);line-height:1.7}
.mrbc-topics em{display:inline-block;margin-top:14px;font-style:normal;font-size:12.5px;color:var(--ink2);border:1px solid var(--line);border-radius:999px;padding:3px 10px}

/* ---------- 场景 ---------- */
.mrbc-split{display:grid;grid-template-columns:.85fr 1.15fr;gap:40px;align-items:start}
.mrbc-split .mrbc-h2{margin-bottom:12px}
.mrbc-scene li{display:flex;gap:16px;padding:18px 0;border-bottom:1px dashed var(--line)}
.mrbc-scene li:last-child{border-bottom:0}
.mrbc-scene b{flex:none;width:96px;font-size:15px;color:var(--c-main)}
.mrbc-scene p{font-size:14px;color:var(--ink2)}

/* ---------- 口碑 ---------- */
.mrbc-voice{display:grid;grid-template-columns:repeat(2,1fr);gap:18px}
.mrbc-voice li{background:var(--card);border:1px solid var(--line);border-radius:var(--r-lg);padding:22px}
.mrbc-voice b{display:block;font-size:14.5px;color:var(--c-sub);margin-bottom:8px}
.mrbc-voice p{font-size:14px;color:var(--ink2)}

/* ---------- 对比 ---------- */
.mrbc-cmp{display:grid;grid-template-columns:1fr 1fr;gap:22px}
.mrbc-cmp > div{border-radius:var(--r-lg);padding:26px;border:1px solid var(--line);background:var(--paper)}
.mrbc-cmp h3{font-size:16px;margin-bottom:16px}
.mrbc-cmp .mrbc-cmp-b{background:#0e1326;border-color:#0e1326;color:#fff}
.mrbc-cmp li{padding:12px 0;border-bottom:1px solid rgba(20,26,46,.08)}
.mrbc-cmp .mrbc-cmp-b li{border-bottom-color:rgba(255,255,255,.12)}
.mrbc-cmp li:last-child{border-bottom:0;padding-bottom:0}
.mrbc-cmp li b{display:block;font-size:14px;margin-bottom:4px}
.mrbc-cmp li p{font-size:13.8px;color:var(--muted);line-height:1.65}
.mrbc-cmp .mrbc-cmp-b li p{color:#b9c1d6}

/* ---------- 时间线 ---------- */
.mrbc-line{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.mrbc-line li{background:var(--card);border:1px solid var(--line);border-radius:var(--r-lg);padding:24px 22px}
.mrbc-line b{display:block;font-size:13px;letter-spacing:2px;color:var(--c-main);margin-bottom:10px}
.mrbc-line p{font-size:14px;color:var(--ink2)}

/* ---------- 资讯 ---------- */
.mrbc-news li{display:flex;align-items:flex-start;gap:16px;padding:18px 0;border-bottom:1px dashed var(--line)}
.mrbc-news li:last-child{border-bottom:0}
.mrbc-tag{flex:none;font-size:12px;background:#eef0f6;color:var(--ink2);border-radius:6px;padding:4px 10px}
.mrbc-news h3{font-size:15.5px;font-weight:600;line-height:1.5}
.mrbc-time{margin-left:auto;font-size:13px;color:var(--muted);flex:none}

/* ---------- 保障 ---------- */
.mrbc-sec-dark{position:relative;overflow:hidden;background:#0e1326;color:#fff}
.mrbc-mask{position:absolute;inset:0;background:url(/assets/images/backpic/back-4.webp) center/cover no-repeat;opacity:.18}
.mrbc-sec-dark .mrbc-wrap{position:relative;z-index:2}
.mrbc-sec-dark .mrbc-sub{color:#a9b3cc}
.mrbc-guard{display:grid;grid-template-columns:repeat(5,1fr);gap:16px}
.mrbc-guard li{border:1px solid rgba(255,255,255,.16);border-radius:14px;padding:18px;background:rgba(255,255,255,.05)}
.mrbc-guard b{display:block;font-size:15px;margin-bottom:6px}
.mrbc-guard span{display:block;font-size:13.5px;color:#b9c1d6;line-height:1.65}

/* ---------- 问答 ---------- */
.mrbc-faq{display:grid;gap:14px;max-width:900px}
.mrbc-faq li{background:var(--card);border:1px solid var(--line);border-radius:14px;padding:20px 22px}
.mrbc-faq h3{font-size:16px;margin-bottom:8px}
.mrbc-faq p{font-size:14px;color:var(--ink2)}

/* ---------- 页脚 ---------- */
.mrbc-foot{background:#0b1021;color:#c3cade;padding-top:52px}
.mrbc-foot-in{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.3fr;gap:34px;padding-bottom:38px}
.mrbc-fcol h4{font-size:14.5px;color:#fff;margin-bottom:14px;font-weight:600}
.mrbc-fcol p{font-size:13.5px;line-height:1.75;color:#9aa3bd}
.mrbc-fcol ul li{margin-bottom:10px}
.mrbc-fcol ul a{font-size:13.5px;color:#9aa3bd;transition:color .2s;min-height:44px;display:inline-flex;align-items:center}
.mrbc-fcol ul a:hover{color:#fff}
.mrbc-brand2{display:inline-block;font-size:17px;font-weight:700;color:#fff;margin-bottom:12px}
.mrbc-copy{border-top:1px solid rgba(255,255,255,.10);padding:18px 0;font-size:13px;color:#8a93ad}

/* ---------- 固定条 ---------- */
.mrbc-fix{position:fixed;left:0;right:0;bottom:0;z-index:80;background:rgba(11,16,33,.97);border-top:1px solid rgba(255,255,255,.12);color:#fff}
.mrbc-fix-in{max-width:1200px;margin:0 auto;padding:10px 24px;display:flex;align-items:center;justify-content:space-between;gap:14px}
.mrbc-fix p{font-size:14px;color:#c8cee0}
.mrbc-fix a{min-height:44px;display:inline-flex;align-items:center;padding:0 22px;border-radius:var(--r-sm);background:var(--c-main);color:#fff;font-size:14px;font-weight:600;transition:background .2s}
.mrbc-fix a:hover{background:#d6452d}

@media (max-width:1024px){
  .mrbc-kpi{grid-template-columns:repeat(2,1fr)}
  .mrbc-cats,.mrbc-topics{grid-template-columns:repeat(2,1fr)}
  .mrbc-grid{grid-template-columns:repeat(4,1fr)}
  .mrbc-guard{grid-template-columns:repeat(3,1fr)}
  .mrbc-split{grid-template-columns:1fr;gap:26px}
  .mrbc-foot-in{grid-template-columns:1fr 1fr}
  .mrbc-pill{display:none}
}
@media (max-width:768px){
  .mrbc-top-in{gap:12px;min-height:60px}
  .mrbc-nav a{padding:8px 10px;font-size:14px}
  .mrbc-grid{grid-template-columns:repeat(3,1fr);gap:14px}
  .mrbc-rank{grid-template-columns:1fr}
  .mrbc-voice{grid-template-columns:1fr}
  .mrbc-cmp{grid-template-columns:1fr}
  .mrbc-line{grid-template-columns:1fr}
  .mrbc-guard{grid-template-columns:repeat(2,1fr)}
  .mrbc-topics{grid-template-columns:1fr}
}
@media (max-width:520px){
  .mrbc-wrap{padding:0 16px}
  .mrbc-brand{font-size:16px}
  .mrbc-nav a{font-size:13.5px;padding:8px 9px}
  .mrbc-grid{grid-template-columns:repeat(2,1fr);gap:12px}
  .mrbc-kpi,.mrbc-cats{grid-template-columns:1fr}
  .mrbc-guard{grid-template-columns:1fr}
  .mrbc-search{flex-wrap:wrap}
  .mrbc-search button{width:100%}
  .mrbc-news li{flex-wrap:wrap;gap:10px}
  .mrbc-time{margin-left:0}
  .mrbc-scene li{flex-direction:column;gap:6px}
  .mrbc-scene b{width:auto}
  .mrbc-foot-in{grid-template-columns:1fr;gap:26px}
  .mrbc-fix p{font-size:13.5px}
  .mrbc-fix a{padding:0 16px;font-size:13.5px}
  .mrbc-card h3{font-size:14px;padding:10px 10px 0}
  .mrbc-meta{padding:3px 10px 12px}
}