/* roulang page: index */
*,*::before,*::after{box-sizing:border-box}
:root{
  --shu:#cf4a32;
  --kin:#e6b46a;
  --yoru:#0b1220;
  --kami:#f2f5fa;
  --kumo:#98a5b9;
  --sen:rgba(255,255,255,.11);
  --maru:16px;
  --kage:0 18px 40px rgba(0,0,0,.38);
  --ma:clamp(52px,7vw,88px);
}
html{scroll-behavior:smooth}
body{margin:0;background:var(--yoru);color:var(--kami);font-family:"Hiragino Sans GB","PingFang SC","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;font-size:16px;line-height:1.75;-webkit-font-smoothing:antialiased}
img{display:block;max-width:100%;height:auto}
a{color:inherit;text-decoration:none}
h1,h2,h3,p{margin:0}
ul,ol{margin:0;padding:0;list-style:none}
:focus-visible{outline:2px solid var(--kin);outline-offset:3px}
.rkabjbnk-shell{width:min(1180px,100% - 44px);margin-inline:auto}

/* 顶栏 */
.rkabjbnk-topbar{position:sticky;top:0;z-index:40;background:rgba(11,18,32,.88);backdrop-filter:blur(12px);border-bottom:1px solid var(--sen)}
.rkabjbnk-bar{display:flex;align-items:center;gap:18px;min-height:68px;flex-wrap:wrap}
.rkabjbnk-logo{display:inline-flex;align-items:center;gap:10px;min-height:44px;font-size:17px;font-weight:700;letter-spacing:.02em}
.rkabjbnk-mark{display:grid;place-items:center;width:34px;height:34px;border-radius:10px;background:linear-gradient(140deg,var(--shu),#8f2f1f);color:#fff;font-size:16px;box-shadow:0 6px 16px rgba(207,74,50,.35)}
.rkabjbnk-nav{display:flex;gap:2px;margin-left:auto;overflow-x:auto;scrollbar-width:none}
.rkabjbnk-nav::-webkit-scrollbar{display:none}
.rkabjbnk-nav a{display:inline-flex;align-items:center;min-height:44px;padding:0 13px;border-radius:10px;font-size:15px;color:var(--kumo);white-space:nowrap;transition:color .2s,background .2s}
.rkabjbnk-nav a:hover,.rkabjbnk-nav a:focus-visible{color:var(--kami);background:rgba(255,255,255,.07)}

/* 首屏 */
.rkabjbnk-hero{position:relative;overflow:hidden;isolation:isolate;background:#070c15}
.rkabjbnk-hero-bg{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;opacity:.4;z-index:0}
.rkabjbnk-hero::after{content:"";position:absolute;inset:0;z-index:1;background:linear-gradient(180deg,rgba(7,12,21,.62),rgba(7,12,21,.94))}
.rkabjbnk-hero::before{content:"";position:absolute;left:-8%;right:-8%;bottom:-1px;height:66%;z-index:2;background:linear-gradient(180deg,rgba(207,74,50,.34),rgba(207,74,50,0) 72%);clip-path:polygon(0 42%,100% 0,100% 100%,0 100%)}
.rkabjbnk-hero-in{position:relative;z-index:3;max-width:760px;padding:clamp(58px,9vw,112px) 0 clamp(50px,7vw,88px)}
.rkabjbnk-eyebrow{display:inline-block;padding-left:12px;border-left:3px solid var(--shu);font-size:13px;letter-spacing:.18em;color:var(--kin)}
.rkabjbnk-h1{margin-top:18px;font-size:clamp(34px,6.4vw,62px);line-height:1.14;font-weight:800;letter-spacing:.01em}
.rkabjbnk-h1-em{color:var(--kin)}
.rkabjbnk-lead{margin-top:20px;max-width:600px;color:#c7d0de;font-size:16px;line-height:1.9}
.rkabjbnk-btn{display:inline-flex;align-items:center;justify-content:center;min-height:48px;padding:0 28px;margin-top:28px;border-radius:999px;background:var(--shu);color:#fff;font-size:16px;font-weight:600;box-shadow:0 12px 26px rgba(207,74,50,.34);transition:transform .2s,box-shadow .2s,background .2s}
.rkabjbnk-btn:hover{transform:translateY(-2px);background:#e0563b;box-shadow:0 16px 32px rgba(207,74,50,.44)}

/* 通用板块 */
.rkabjbnk-sec{padding:var(--ma) 0;border-top:1px solid var(--sen)}
.rkabjbnk-sec-alt{background:#0e1726}
.rkabjbnk-head{max-width:780px;margin-bottom:34px}
.rkabjbnk-h2{font-size:clamp(23px,3vw,32px);line-height:1.32;font-weight:700}
.rkabjbnk-h2::after{content:"";display:block;width:46px;height:3px;margin-top:14px;border-radius:2px;background:linear-gradient(90deg,var(--shu),var(--kin))}
.rkabjbnk-sub{margin-top:14px;color:var(--kumo);font-size:15.5px;line-height:1.9}

/* 人群 */
.rkabjbnk-crowd{display:grid;gap:16px;grid-template-columns:repeat(4,minmax(0,1fr))}
.rkabjbnk-crowd-item{padding:22px;border:1px solid var(--sen);border-radius:var(--maru);background:rgba(255,255,255,.035);transition:border-color .2s,transform .2s}
.rkabjbnk-crowd-item:hover{border-color:rgba(230,180,106,.45);transform:translateY(-3px)}
.rkabjbnk-crowd-item h3{margin-bottom:10px;font-size:17px;color:var(--kin)}
.rkabjbnk-crowd-item p{font-size:14.5px;color:var(--kumo);line-height:1.8}

/* 适合 / 不适合 */
.rkabjbnk-split{display:grid;gap:20px;grid-template-columns:1fr 1fr}
.rkabjbnk-split-col{padding:26px;border:1px solid var(--sen);border-radius:var(--maru);background:rgba(255,255,255,.03)}
.rkabjbnk-split-col h3{margin-bottom:14px;font-size:17px}
.rkabjbnk-split-col li{position:relative;margin-bottom:12px;padding-left:22px;font-size:14.5px;color:var(--kumo);line-height:1.8}
.rkabjbnk-split-col li:last-child{margin-bottom:0}
.rkabjbnk-split-col li::before{content:"";position:absolute;left:0;top:9px;width:9px;height:9px;border-radius:50%}
.rkabjbnk-ok h3{color:var(--kin)}
.rkabjbnk-ok li::before{background:var(--kin)}
.rkabjbnk-no h3{color:#cf7d6f}
.rkabjbnk-no li::before{background:#8a5a52}

/* 对照表 */
.rkabjbnk-table-wrap{overflow-x:auto;border:1px solid var(--sen);border-radius:var(--maru);background:rgba(255,255,255,.03)}
.rkabjbnk-tb{width:100%;min-width:660px;border-collapse:collapse;font-size:14.5px}
.rkabjbnk-tb th,.rkabjbnk-tb td{padding:16px 18px;text-align:left;vertical-align:top;border-bottom:1px solid var(--sen)}
.rkabjbnk-tb thead th{font-size:15px;color:var(--kami);background:rgba(255,255,255,.05)}
.rkabjbnk-tb tbody th{color:var(--kumo);font-weight:500;white-space:nowrap}
.rkabjbnk-tb td{color:#c3ccda}
.rkabjbnk-tb tbody tr:last-child th,.rkabjbnk-tb tbody tr:last-child td{border-bottom:0}
.rkabjbnk-tb-pick{background:rgba(207,74,50,.13)}
.rkabjbnk-tb thead th.rkabjbnk-tb-pick{color:var(--kin)}
.rkabjbnk-tb-pick span{display:inline-block;margin-left:8px;padding:2px 8px;border-radius:999px;background:var(--shu);color:#fff;font-size:12px}
.rkabjbnk-tb-link{display:inline-flex;align-items:center;min-height:44px;margin-top:18px;color:var(--kin);font-size:15px;border-bottom:1px solid rgba(230,180,106,.45);transition:color .2s,border-color .2s}
.rkabjbnk-tb-link:hover{color:#fff;border-color:#fff}

/* 分类频道 */
.rkabjbnk-tag-list{display:grid;gap:16px;grid-template-columns:repeat(3,minmax(0,1fr))}
.rkabjbnk-tag-item{padding:22px 24px;border:1px solid var(--sen);border-left:3px solid var(--shu);border-radius:12px;background:rgba(255,255,255,.03)}
.rkabjbnk-tag-item h3{margin-bottom:8px;font-size:16px;color:var(--kami)}
.rkabjbnk-tag-item p{font-size:14.5px;color:var(--kumo);line-height:1.8}

/* 卡片 */
.rkabjbnk-grid{display:grid;gap:18px;grid-template-columns:repeat(6,minmax(0,1fr))}
.rkabjbnk-card{position:relative;display:flex;flex-direction:column;border:1px solid var(--sen);border-radius:var(--maru);overflow:hidden;background:rgba(255,255,255,.04);transition:transform .25s,border-color .25s,box-shadow .25s}
.rkabjbnk-card:hover{transform:translateY(-4px);border-color:rgba(230,180,106,.42);box-shadow:var(--kage)}
.rkabjbnk-thumb{position:relative;aspect-ratio:3/4;overflow:hidden;background:#0a1018}
.rkabjbnk-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .4s}
.rkabjbnk-card:hover .rkabjbnk-thumb img{transform:scale(1.05)}
.rkabjbnk-badge{position:absolute;top:10px;left:10px;padding:3px 9px;border-radius:999px;border:1px solid rgba(230,180,106,.35);background:rgba(11,18,32,.78);color:var(--kin);font-size:12px;letter-spacing:.04em;backdrop-filter:blur(4px)}
.rkabjbnk-score{position:absolute;right:10px;bottom:10px;padding:3px 9px;border-radius:8px;background:rgba(207,74,50,.92);color:#fff;font-size:13px;font-weight:700}
.rkabjbnk-card-t{padding:12px 14px 16px;font-size:15px;font-weight:600}
.rkabjbnk-quote{padding:0 14px 16px;font-size:13.5px;color:var(--kumo);line-height:1.7}

/* 排行 */
.rkabjbnk-rank{display:grid;gap:10px;grid-template-columns:1fr 1fr}
.rkabjbnk-rank li{display:flex;align-items:center;gap:14px;min-height:56px;padding:12px 18px;border:1px solid var(--sen);border-radius:12px;background:rgba(255,255,255,.035);transition:background .2s,transform .2s}
.rkabjbnk-rank li:hover{background:rgba(255,255,255,.07);transform:translateX(4px)}
.rkabjbnk-num{min-width:26px;font-size:19px;font-weight:800;color:var(--shu);font-variant-numeric:tabular-nums}
.rkabjbnk-rank li:nth-child(-n+3) .rkabjbnk-num{color:var(--kin)}
.rkabjbnk-rank-name{font-size:15px;font-weight:600}
.rkabjbnk-rank-meta{margin-left:auto;font-size:13px;color:var(--kumo);white-space:nowrap}

/* 专题 */
.rkabjbnk-feature{display:grid;gap:18px;grid-template-columns:repeat(3,minmax(0,1fr))}
.rkabjbnk-feature-card{position:relative;display:flex;flex-direction:column;justify-content:flex-end;min-height:236px;padding:22px;border:1px solid var(--sen);border-radius:var(--maru);overflow:hidden}
.rkabjbnk-feature-card img{position:absolute;inset:0;z-index:0;width:100%;height:100%;object-fit:cover;transition:transform .4s}
.rkabjbnk-feature-card:hover img{transform:scale(1.06)}
.rkabjbnk-feature-card::after{content:"";position:absolute;inset:0;z-index:1;background:linear-gradient(180deg,rgba(7,12,21,.12),rgba(7,12,21,.93))}
.rkabjbnk-feature-card h3,.rkabjbnk-feature-card p{position:relative;z-index:2}
.rkabjbnk-feature-card h3{margin-bottom:8px;font-size:18px}
.rkabjbnk-feature-card p{font-size:14px;color:#c7d0de;line-height:1.7}

/* 资讯 */
.rkabjbnk-news{display:grid;gap:12px}
.rkabjbnk-news li{display:flex;flex-wrap:wrap;align-items:baseline;gap:8px 16px;padding:16px 20px;border:1px solid var(--sen);border-radius:12px;background:rgba(255,255,255,.03)}
.rkabjbnk-news h3{font-size:15.5px;font-weight:600}
.rkabjbnk-news p{width:100%;font-size:14px;color:var(--kumo);line-height:1.75}
.rkabjbnk-time{padding:2px 10px;border:1px solid rgba(230,180,106,.35);border-radius:999px;color:var(--kin);font-size:13px;white-space:nowrap}

/* 保障 */
.rkabjbnk-guard{display:grid;gap:16px;grid-template-columns:repeat(4,minmax(0,1fr))}
.rkabjbnk-guard-item{padding:24px;border:1px solid var(--sen);border-radius:var(--maru);background:linear-gradient(180deg,rgba(207,74,50,.11),rgba(255,255,255,.02))}
.rkabjbnk-guard-item h3{margin-bottom:10px;font-size:16px;color:var(--kin)}
.rkabjbnk-guard-item p{font-size:14px;color:var(--kumo);line-height:1.8}

/* 问答 */
.rkabjbnk-faq{display:grid;gap:14px;grid-template-columns:1fr 1fr}
.rkabjbnk-qa{padding:22px 24px;border:1px solid var(--sen);border-radius:var(--maru);background:rgba(255,255,255,.035)}
.rkabjbnk-qa h3{margin-bottom:10px;font-size:16px}
.rkabjbnk-qa h3::before{content:"Q ";color:var(--shu);font-weight:800}
.rkabjbnk-qa p{font-size:14.5px;color:var(--kumo);line-height:1.85}

/* 页脚 */
.rkabjbnk-foot{padding:clamp(44px,6vw,68px) 0 0;border-top:1px solid var(--sen);background:#080e18}
.rkabjbnk-foot-grid{display:grid;gap:32px;grid-template-columns:1.7fr 1fr 1fr 1fr}
.rkabjbnk-foot-col h3{margin-bottom:14px;font-size:15px;color:var(--kami)}
.rkabjbnk-foot-col p,.rkabjbnk-foot-col li{font-size:14px;color:var(--kumo);line-height:1.9}
.rkabjbnk-foot-col li a{display:inline-flex;align-items:center;min-height:44px;transition:color .2s}
.rkabjbnk-foot-col li a:hover{color:var(--kin)}
.rkabjbnk-copy{display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;margin-top:40px;padding:20px 0;border-top:1px solid var(--sen);font-size:13px;color:#78859a}

@media(max-width:1024px){
  .rkabjbnk-crowd{grid-template-columns:repeat(2,minmax(0,1fr))}
  .rkabjbnk-tag-list{grid-template-columns:repeat(2,minmax(0,1fr))}
  .rkabjbnk-grid{grid-template-columns:repeat(3,minmax(0,1fr))}
  .rkabjbnk-rank{grid-template-columns:1fr}
  .rkabjbnk-feature{grid-template-columns:1fr}
  .rkabjbnk-guard{grid-template-columns:repeat(2,minmax(0,1fr))}
  .rkabjbnk-faq{grid-template-columns:1fr}
  .rkabjbnk-foot-grid{grid-template-columns:1fr 1fr}
}
@media(max-width:768px){
  .rkabjbnk-shell{width:calc(100% - 32px)}
  .rkabjbnk-nav{width:100%;margin-left:0;padding-bottom:6px}
  .rkabjbnk-hero-in{padding-top:52px}
  .rkabjbnk-lead{font-size:15px}
  .rkabjbnk-split{grid-template-columns:1fr}
  .rkabjbnk-crowd-item{padding:20px}
}
@media(max-width:520px){
  .rkabjbnk-crowd,.rkabjbnk-tag-list,.rkabjbnk-guard,.rkabjbnk-foot-grid{grid-template-columns:1fr}
  .rkabjbnk-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:12px}
  .rkabjbnk-h1{font-size:32px}
  .rkabjbnk-card-t{font-size:14.5px}
  .rkabjbnk-nav a{padding:0 11px;font-size:14px}
}