/* roulang page: index */
:root{
--c1:#ff5a3c;
--c2:#ffc45c;
--bgc:#0b0d12;
--bg2:#12151d;
--ink:#f3f1ee;
--dim:#a3a9b7;
--line:rgba(255,255,255,.09);
--r:16px;
--sh:0 14px 34px rgba(0,0,0,.42);
--gap:22px;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;background:var(--bgc);color:var(--ink);font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;font-size:16px;line-height:1.7;-webkit-font-smoothing:antialiased}
img{display:block;max-width:100%}
a{color:inherit;text-decoration:none}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,p{margin:0}
:focus-visible{outline:2px solid var(--c2);outline-offset:3px}
.ibrnlu-wrap{width:min(1200px,92%);margin:0 auto}
.ibrnlu-hd{position:sticky;top:0;z-index:30;background:rgba(11,13,18,.88);backdrop-filter:blur(12px);border-bottom:1px solid var(--line)}
.ibrnlu-hd-in{display:flex;align-items:center;gap:18px;min-height:66px}
.ibrnlu-logo{display:flex;align-items:center;gap:10px;font-weight:700;font-size:16px;letter-spacing:.2px}
.ibrnlu-mark{width:34px;height:34px;border-radius:10px;background:linear-gradient(135deg,var(--c1),var(--c2));display:grid;place-items:center;color:#1a0f08;font-size:15px;font-weight:800;flex:none}
.ibrnlu-nav{margin-left:auto;display:flex;gap:2px;overflow-x:auto;scrollbar-width:none}
.ibrnlu-nav::-webkit-scrollbar{display:none}
.ibrnlu-nav a{min-height:44px;display:inline-flex;align-items:center;padding:0 12px;border-radius:10px;font-size:14.5px;color:var(--dim);white-space:nowrap;transition:color .2s,background .2s}
.ibrnlu-nav a:hover{color:var(--ink);background:rgba(255,255,255,.07)}
.ibrnlu-hero{position:relative;overflow:hidden;padding:88px 0 76px;display:flex;align-items:center;min-height:520px}
.ibrnlu-hero-bg{position:absolute;inset:0;z-index:0}
.ibrnlu-hero-bg img{width:100%;height:100%;object-fit:cover;opacity:.4}
.ibrnlu-hero-bg::after{content:"";position:absolute;inset:0;background:linear-gradient(100deg,rgba(11,13,18,.97) 28%,rgba(11,13,18,.58) 68%,rgba(11,13,18,.86))}
.ibrnlu-hero-in{position:relative;z-index:1;max-width:760px}
.ibrnlu-kicker{display:inline-block;padding:6px 14px;border:1px solid rgba(255,196,92,.42);border-radius:999px;color:var(--c2);font-size:13px;letter-spacing:.6px}
.ibrnlu-hero h1{font-size:clamp(27px,4.4vw,46px);line-height:1.26;margin-top:18px;font-weight:800;letter-spacing:.5px}
.ibrnlu-hero-sub{margin-top:16px;font-size:16px;color:#c3c8d4;max-width:660px}
.ibrnlu-hero-list{margin-top:18px;display:flex;flex-wrap:wrap;gap:8px 22px;font-size:14.5px;color:#d7dae2}
.ibrnlu-hero-list li::before{content:"·";color:var(--c1);margin-right:8px;font-weight:800}
.ibrnlu-hero-act{margin-top:26px;display:flex;flex-wrap:wrap;gap:12px}
.ibrnlu-btn{display:inline-flex;align-items:center;justify-content:center;min-height:46px;padding:0 24px;border-radius:12px;background:linear-gradient(135deg,var(--c1),#ff8a4c);color:#1a0f08;font-weight:700;font-size:15px;transition:transform .22s,box-shadow .22s;box-shadow:0 8px 22px rgba(255,90,60,.26)}
.ibrnlu-btn:hover{transform:translateY(-2px);box-shadow:0 12px 28px rgba(255,90,60,.4)}
.ibrnlu-btn-ghost{background:transparent;border:1px solid var(--line);color:var(--ink);box-shadow:none}
.ibrnlu-btn-ghost:hover{background:rgba(255,255,255,.07);box-shadow:none}
.ibrnlu-trust{margin-top:22px;font-size:13px;color:#8d94a4;letter-spacing:.5px}
.ibrnlu-sec{padding:66px 0}
.ibrnlu-sec-alt{background:var(--bg2);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.ibrnlu-h2{font-size:clamp(21px,2.8vw,29px);font-weight:800;line-height:1.36}
.ibrnlu-lead{color:var(--dim);font-size:15px;margin-top:12px;max-width:840px}
.ibrnlu-stair{display:grid;grid-template-columns:repeat(4,1fr);gap:16px;margin-top:30px}
.ibrnlu-stair li{background:#161a24;border:1px solid var(--line);border-radius:var(--r);padding:22px 18px;transition:transform .22s,border-color .22s,box-shadow .22s}
.ibrnlu-stair li:hover{transform:translateY(-4px);border-color:rgba(255,196,92,.36);box-shadow:var(--sh)}
.ibrnlu-snum{font-size:21px;font-weight:800;color:var(--c2);letter-spacing:1px}
.ibrnlu-stair h3{font-size:16px;margin:8px 0 6px}
.ibrnlu-stair p{font-size:14px;color:var(--dim)}
.ibrnlu-tw{overflow-x:auto;margin-top:28px;border:1px solid var(--line);border-radius:var(--r)}
.ibrnlu-tb{width:100%;border-collapse:collapse;min-width:660px;font-size:14.5px}
.ibrnlu-tb th,.ibrnlu-tb td{padding:14px 16px;text-align:left;border-bottom:1px solid var(--line)}
.ibrnlu-tb thead th{background:rgba(255,255,255,.04);color:#cfd4de;font-weight:600;font-size:13.5px;letter-spacing:.4px}
.ibrnlu-tb tbody tr:last-child td{border-bottom:0}
.ibrnlu-tb tbody tr:hover{background:rgba(255,255,255,.03)}
.ibrnlu-tb .ibrnlu-hot{background:rgba(255,90,60,.09)}
.ibrnlu-tb .ibrnlu-hot td:first-child{color:var(--c2);font-weight:700}
.ibrnlu-gates{display:grid;grid-template-columns:repeat(4,1fr);gap:16px;margin-top:28px}
.ibrnlu-gate{padding:22px 18px;border-radius:var(--r);background:linear-gradient(160deg,#171b26,#11141c);border:1px solid var(--line);transition:transform .22s,border-color .22s}
.ibrnlu-gate:hover{transform:translateY(-4px);border-color:rgba(255,90,60,.4)}
.ibrnlu-gate h3{font-size:16px;margin-bottom:8px;color:var(--c2)}
.ibrnlu-gate p{font-size:14px;color:var(--dim)}
.ibrnlu-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:var(--gap);margin-top:30px}
.ibrnlu-card{background:#161a24;border:1px solid var(--line);border-radius:var(--r);overflow:hidden;transition:transform .24s,border-color .24s,box-shadow .24s}
.ibrnlu-card:hover{transform:translateY(-5px);border-color:rgba(255,90,60,.42);box-shadow:var(--sh)}
.ibrnlu-thumb{position:relative;aspect-ratio:16/10;background:#0e1118}
.ibrnlu-thumb img{width:100%;height:100%;object-fit:cover}
.ibrnlu-badge{position:absolute;left:10px;top:10px;padding:3px 9px;border-radius:7px;background:rgba(11,13,18,.8);border:1px solid rgba(255,196,92,.5);color:var(--c2);font-size:12px;font-weight:600}
.ibrnlu-score{position:absolute;right:10px;bottom:10px;padding:3px 9px;border-radius:7px;background:rgba(255,90,60,.92);color:#1a0f08;font-size:12.5px;font-weight:800}
.ibrnlu-cbody{padding:14px 16px 16px}
.ibrnlu-cbody h3{font-size:16px;font-weight:700}
.ibrnlu-cbody p{font-size:13.5px;color:var(--dim);margin-top:6px}
.ibrnlu-rank{margin-top:26px;display:grid;grid-template-columns:repeat(2,1fr);gap:0 28px}
.ibrnlu-rank li{display:flex;align-items:center;gap:12px;min-height:54px;padding:8px 2px;border-bottom:1px solid var(--line)}
.ibrnlu-rno{width:28px;flex:none;text-align:center;font-weight:800;font-size:15px;color:#6f7787}
.ibrnlu-rank li:nth-child(-n+3) .ibrnlu-rno{color:var(--c1)}
.ibrnlu-rname{font-size:15.5px;font-weight:600}
.ibrnlu-rmeta{margin-left:auto;font-size:13px;color:var(--dim);white-space:nowrap}
.ibrnlu-voices{display:grid;grid-template-columns:repeat(3,1fr);gap:18px;margin-top:30px}
.ibrnlu-voice{position:relative;background:#161a24;border:1px solid var(--line);border-radius:var(--r);padding:20px 18px;overflow:hidden}
.ibrnlu-voice p{font-size:14.5px;color:#d3d7e0}
.ibrnlu-vname{margin-top:14px;font-size:13px;color:var(--c2);letter-spacing:.3px}
.ibrnlu-voice::before{content:"”";position:absolute;right:14px;top:-4px;font-size:52px;line-height:1;color:rgba(255,255,255,.07)}
.ibrnlu-icons{display:grid;grid-template-columns:repeat(4,1fr);gap:16px;margin-top:28px}
.ibrnlu-icon{display:flex;gap:12px;align-items:flex-start;padding:18px;border:1px solid var(--line);border-radius:var(--r);background:rgba(255,255,255,.02)}
.ibrnlu-icon i{flex:none;width:30px;height:30px;border-radius:9px;display:grid;place-items:center;background:rgba(255,90,60,.16);color:var(--c1);font-style:normal;font-weight:800;font-size:14px}
.ibrnlu-icon h3{font-size:15px;margin-bottom:4px}
.ibrnlu-icon p{font-size:13px;color:var(--dim)}
.ibrnlu-news{margin-top:28px;display:grid;gap:16px}
.ibrnlu-news li{display:grid;grid-template-columns:220px 1fr;gap:0;align-items:center;background:#161a24;border:1px solid var(--line);border-radius:var(--r);overflow:hidden;transition:border-color .22s,transform .22s}
.ibrnlu-news li:hover{border-color:rgba(255,196,92,.36);transform:translateX(3px)}
.ibrnlu-news .ibrnlu-thumb{aspect-ratio:16/9;height:100%}
.ibrnlu-nbody{padding:16px 22px}
.ibrnlu-nbody h3{font-size:16.5px;font-weight:700}
.ibrnlu-nbody p{font-size:14px;color:var(--dim);margin-top:6px}
.ibrnlu-ndate{display:inline-block;margin-top:10px;font-size:12.5px;color:var(--c2);letter-spacing:.4px}
.ibrnlu-taglist{display:grid;grid-template-columns:repeat(3,1fr);gap:16px;margin-top:28px}
.ibrnlu-tag{padding:20px 18px;border-radius:var(--r);border:1px dashed rgba(255,255,255,.15);background:rgba(255,255,255,.02)}
.ibrnlu-tag strong{display:block;font-size:16px;color:var(--c2);margin-bottom:6px}
.ibrnlu-tag span{font-size:13.5px;color:var(--dim)}
.ibrnlu-topics{display:grid;grid-template-columns:repeat(3,1fr);gap:var(--gap);margin-top:30px}
.ibrnlu-topic{position:relative;border-radius:var(--r);overflow:hidden;border:1px solid var(--line);background:#161a24;transition:transform .24s,box-shadow .24s}
.ibrnlu-topic:hover{transform:translateY(-5px);box-shadow:var(--sh)}
.ibrnlu-topic .ibrnlu-thumb{aspect-ratio:4/3}
.ibrnlu-topic .ibrnlu-thumb::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(11,13,18,0) 32%,rgba(11,13,18,.94))}
.ibrnlu-topic-tx{position:absolute;left:0;right:0;bottom:0;padding:18px;z-index:2}
.ibrnlu-topic-tx h3{font-size:17px}
.ibrnlu-topic-tx p{font-size:13.5px;color:#c6cbd6;margin-top:5px}
.ibrnlu-cta{position:relative;overflow:hidden;background:#0e1118;border-top:1px solid var(--line)}
.ibrnlu-cta-bg{position:absolute;inset:0;z-index:0}
.ibrnlu-cta-bg img{width:100%;height:100%;object-fit:cover;opacity:.24}
.ibrnlu-cta-bg::after{content:"";position:absolute;inset:0;background:linear-gradient(90deg,rgba(11,13,18,.96),rgba(11,13,18,.62))}
.ibrnlu-cta-in{position:relative;z-index:1;max-width:660px;padding:70px 0}
.ibrnlu-cta-in h2{font-size:clamp(21px,2.8vw,29px);font-weight:800}
.ibrnlu-cta-in p{margin-top:12px;color:#c3c8d4;font-size:15px}
.ibrnlu-cta-in .ibrnlu-btn{margin-top:24px}
.ibrnlu-ft{background:#080a0e;border-top:1px solid var(--line);padding:52px 0 0}
.ibrnlu-ft-grid{display:grid;grid-template-columns:1.7fr 1fr 1fr 1fr;gap:32px}
.ibrnlu-fbrand{display:flex;align-items:center;gap:10px;font-weight:700;font-size:15.5px;margin-bottom:14px}
.ibrnlu-ft p{font-size:13.8px;color:var(--dim)}
.ibrnlu-ft h3{font-size:15px;margin-bottom:14px;color:#fff}
.ibrnlu-ft li{margin-bottom:10px}
.ibrnlu-ft li a{font-size:13.8px;color:var(--dim);transition:color .2s}
.ibrnlu-ft li a:hover{color:var(--c2)}
.ibrnlu-ft-bt{margin-top:38px;border-top:1px solid var(--line);padding:18px 0;font-size:13px;color:#767d8c;text-align:center}
@media(max-width:1024px){
.ibrnlu-stair,.ibrnlu-gates,.ibrnlu-icons{grid-template-columns:repeat(2,1fr)}
.ibrnlu-grid,.ibrnlu-voices,.ibrnlu-taglist,.ibrnlu-topics{grid-template-columns:repeat(2,1fr)}
.ibrnlu-ft-grid{grid-template-columns:1fr 1fr}
.ibrnlu-lead{font-size:14.5px}
}
@media(max-width:768px){
.ibrnlu-hd-in{flex-wrap:wrap;padding:10px 0;gap:10px}
.ibrnlu-nav{margin-left:0;width:100%}
.ibrnlu-hero{padding:56px 0 50px;min-height:0}
.ibrnlu-sec{padding:48px 0}
.ibrnlu-rank{grid-template-columns:1fr;gap:0}
.ibrnlu-news li{grid-template-columns:1fr}
.ibrnlu-news .ibrnlu-thumb{aspect-ratio:16/9;height:auto}
.ibrnlu-nbody{padding:16px 18px 20px}
.ibrnlu-cta-in{padding:52px 0}
}
@media(max-width:520px){
.ibrnlu-grid,.ibrnlu-gates,.ibrnlu-icons,.ibrnlu-voices,.ibrnlu-taglist,.ibrnlu-topics,.ibrnlu-stair,.ibrnlu-ft-grid{grid-template-columns:1fr}
.ibrnlu-hero-list{flex-direction:column;gap:6px}
.ibrnlu-hero h1{font-size:26px}
body{font-size:15px}
.ibrnlu-btn{width:100%}
}