/* roulang page: index */
*{box-sizing:border-box}
:root{
--ink:#f6f0ec;
--ink2:#a99b96;
--bg:#131010;
--card:#1d1818;
--card2:#251e1d;
--red:#c3102c;
--gold:#e0a95d;
--rule:rgba(255,255,255,.09);
--rad:16px;
--rad-s:10px;
--shd:0 16px 36px rgba(0,0,0,.42);
--gap:26px;
}
html{scroll-behavior:smooth}
body{margin:0;background:var(--bg);color:var(--ink);font:16px/1.75 -apple-system,BlinkMacSystemFont,"PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;-webkit-font-smoothing:antialiased}
h1,h2,h3,h4{margin:0;line-height:1.32;font-weight:700}
p{margin:0}
ul,ol{margin:0;padding:0;list-style:none}
figure{margin:0}
a{color:inherit;text-decoration:none}
img{display:block;max-width:100%}
a:focus-visible,button:focus-visible,input:focus-visible{outline:2px solid var(--gold);outline-offset:3px}
.bchk-wrap{width:min(1180px,92%);margin:0 auto}

/* 顶栏 */
.bchk-top{position:sticky;top:0;z-index:50;background:rgba(19,16,16,.9);backdrop-filter:blur(12px);border-bottom:1px solid var(--rule)}
.bchk-bar{display:flex;align-items:center;justify-content:space-between;gap:18px;padding:12px 0}
.bchk-brand{display:flex;align-items:center;gap:10px;min-height:44px;font-size:18px;font-weight:700;letter-spacing:.5px}
.bchk-logo{width:38px;height:38px;border-radius:12px;display:grid;place-items:center;background:linear-gradient(145deg,var(--red),#7c0c20);color:#fff;font-size:18px;font-weight:700;box-shadow:0 6px 16px rgba(195,16,44,.35)}
.bchk-nav{display:flex;gap:2px;overflow-x:auto;scrollbar-width:none}
.bchk-nav::-webkit-scrollbar{display:none}
.bchk-nav a{display:flex;align-items:center;min-height:44px;padding:10px 14px;border-radius:var(--rad-s);font-size:15px;color:var(--ink2);white-space:nowrap;transition:color .2s,background .2s}
.bchk-nav a:hover,.bchk-nav a:focus-visible{color:#fff;background:rgba(255,255,255,.07)}

/* 首屏 */
.bchk-hero{position:relative;isolation:isolate;padding:92px 0 84px;background:url(/assets/images/backpic/back-1.webp) center/cover no-repeat;text-align:center}
.bchk-hero::after{content:"";position:absolute;inset:0;z-index:-1;background:linear-gradient(180deg,rgba(13,9,9,.74),rgba(13,9,9,.94))}
.bchk-eyebrow{display:inline-block;padding:7px 16px;border:1px solid rgba(224,169,93,.45);border-radius:999px;color:var(--gold);font-size:14px;letter-spacing:1px;margin-bottom:22px}
.bchk-hero h1{font-size:clamp(30px,5vw,54px);letter-spacing:1px}
.bchk-hero h1 em{font-style:normal;color:var(--gold)}
.bchk-sub{margin-top:16px;font-size:clamp(16px,2vw,20px);color:#e6dcd7}
.bchk-lead{max-width:760px;margin:22px auto 0;color:var(--ink2);font-size:16px;line-height:1.85}
.bchk-acts{display:flex;flex-wrap:wrap;gap:14px;justify-content:center;margin-top:32px}
.bchk-btn{display:inline-flex;align-items:center;justify-content:center;min-height:48px;padding:0 28px;border-radius:999px;font-size:16px;font-weight:600;transition:transform .2s,box-shadow .2s,background .2s,border-color .2s}
.bchk-btn-a{background:var(--red);color:#fff;box-shadow:0 12px 26px rgba(195,16,44,.35)}
.bchk-btn-a:hover{transform:translateY(-2px);box-shadow:0 16px 32px rgba(195,16,44,.45)}
.bchk-btn-b{background:transparent;color:var(--ink);border:1px solid rgba(255,255,255,.28)}
.bchk-btn-b:hover{border-color:var(--gold);color:var(--gold);transform:translateY(-2px)}

/* 通用板块 */
.bchk-sec{padding:70px 0}
.bchk-sec--alt{background:var(--card);border-top:1px solid var(--rule);border-bottom:1px solid var(--rule)}
.bchk-head{max-width:760px;margin-bottom:36px}
.bchk-head h2{font-size:clamp(22px,2.6vw,30px);letter-spacing:.5px}
.bchk-head h2 span{color:var(--gold)}
.bchk-head p{margin-top:12px;color:var(--ink2);font-size:15px;line-height:1.85}
.bchk-split .bchk-head{margin-bottom:30px}

/* 卡片网格 */
.bchk-grid{display:grid;gap:var(--gap);grid-template-columns:repeat(4,1fr)}
.bchk-grid--4{grid-template-columns:repeat(4,1fr)}
.bchk-card{background:var(--card2);border:1px solid var(--rule);border-radius:var(--rad);overflow:hidden;transition:transform .25s,box-shadow .25s,border-color .25s}
.bchk-card:hover{transform:translateY(-4px);box-shadow:var(--shd);border-color:rgba(224,169,93,.35)}
.bchk-thumb{position:relative;aspect-ratio:2/3;overflow:hidden;background:#0c0a0a}
.bchk-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .4s}
.bchk-card:hover .bchk-thumb img{transform:scale(1.05)}
.bchk-tag{position:absolute;top:10px;left:10px;padding:3px 10px;border-radius:999px;background:rgba(195,16,44,.92);color:#fff;font-size:12px;line-height:1.7;letter-spacing:.5px}
.bchk-score{position:absolute;right:10px;bottom:10px;padding:3px 10px;border-radius:8px;background:rgba(9,7,7,.78);color:var(--gold);font-size:13px;font-weight:700;backdrop-filter:blur(4px)}
.bchk-card h3{padding:14px 14px 0;font-size:16px}
.bchk-card p{padding:6px 14px 16px;color:var(--ink2);font-size:14px;line-height:1.65}

/* 分类频道 */
.bchk-chans{display:grid;gap:var(--gap);grid-template-columns:repeat(5,1fr)}
.bchk-chan{background:var(--card2);border:1px solid var(--rule);border-radius:var(--rad);padding:22px 20px;transition:border-color .25s,transform .25s}
.bchk-chan:hover{border-color:rgba(224,169,93,.4);transform:translateY(-3px)}
.bchk-chan h3{font-size:17px;color:var(--gold)}
.bchk-chan p{margin-top:10px;color:var(--ink2);font-size:14px;line-height:1.7}

/* 高分好评 */
.bchk-picks{display:grid;gap:16px;grid-template-columns:repeat(2,1fr)}
.bchk-pick{display:grid;grid-template-columns:auto 1fr;gap:16px;align-items:start;padding:20px;background:var(--card2);border:1px solid var(--rule);border-radius:var(--rad);transition:border-color .25s,transform .25s}
.bchk-pick:hover{border-color:rgba(224,169,93,.4);transform:translateX(4px)}
.bchk-pick b{display:grid;place-items:center;min-width:56px;height:56px;border-radius:14px;background:rgba(195,16,44,.16);color:var(--gold);font-size:18px;font-weight:700}
.bchk-pick h3{font-size:16px}
.bchk-pick p{margin-top:6px;color:var(--ink2);font-size:14px;line-height:1.7}

/* 类型专区 */
.bchk-genres{display:grid;gap:var(--gap);grid-template-columns:repeat(4,1fr)}
.bchk-genre{background:linear-gradient(180deg,var(--card2),#1a1515);border:1px solid var(--rule);border-radius:var(--rad);padding:22px 20px}
.bchk-genre h3{font-size:17px;padding-bottom:12px;border-bottom:1px dashed var(--rule)}
.bchk-genre li{margin-top:10px}
.bchk-chip{display:inline-block;padding:6px 13px;border-radius:999px;background:rgba(255,255,255,.06);color:#ded4d0;font-size:14px}

/* 排行榜 */
.bchk-board{display:grid;gap:12px;grid-template-columns:repeat(2,1fr);counter-reset:bchk-no}
.bchk-board li{display:grid;grid-template-columns:44px 1fr auto;align-items:center;gap:14px;padding:14px 18px;background:var(--card2);border:1px solid var(--rule);border-radius:var(--rad-s);transition:border-color .25s,background .25s}
.bchk-board li:hover{border-color:rgba(224,169,93,.4);background:#2a2221}
.bchk-no{counter-increment:bchk-no;font-size:19px;font-weight:700;color:rgba(224,169,93,.85);text-align:center}
.bchk-board li::before{content:none}
.bchk-name{font-size:15px;font-weight:600}
.bchk-name small{display:block;font-weight:400;color:var(--ink2);font-size:13px;margin-top:2px}
.bchk-heat{padding:3px 10px;border-radius:999px;background:rgba(195,16,44,.18);color:#f0b3bd;font-size:12px;white-space:nowrap}

/* 专题 */
.bchk-specials{display:grid;gap:var(--gap);grid-template-columns:repeat(3,1fr)}
.bchk-special{position:relative;border-radius:var(--rad);overflow:hidden;padding:28px 24px;background:url(/assets/images/backpic/back-3.webp) center/cover no-repeat;border:1px solid var(--rule);isolation:isolate;transition:transform .25s}
.bchk-special::after{content:"";position:absolute;inset:0;z-index:-1;background:linear-gradient(160deg,rgba(124,12,32,.88),rgba(15,11,11,.94))}
.bchk-special:hover{transform:translateY(-4px)}
.bchk-special h3{font-size:18px;color:#fff}
.bchk-special p{margin-top:12px;color:#e0d6d2;font-size:14px;line-height:1.75}

/* 资讯 */
.bchk-news{display:grid;gap:0;border-top:1px solid var(--rule)}
.bchk-news li{padding:22px 0;border-bottom:1px solid var(--rule);display:grid;grid-template-columns:88px 1fr;gap:18px;align-items:start}
.bchk-when{align-items:center;display:inline-flex;justify-content:center;min-height:32px;border-radius:8px;background:rgba(224,169,93,.14);color:var(--gold);font-size:13px}
.bchk-news h3{font-size:16px}
.bchk-news p{margin-top:6px;color:var(--ink2);font-size:14px;line-height:1.7}

/* 问答 */
.bchk-faq{display:grid;gap:18px;grid-template-columns:repeat(2,1fr)}
.bchk-faq article{background:var(--card2);border:1px solid var(--rule);border-radius:var(--rad);padding:22px 22px}
.bchk-faq h3{font-size:16px;color:var(--gold)}
.bchk-faq p{margin-top:10px;color:var(--ink2);font-size:14px;line-height:1.8}

/* 页脚 */
.bchk-foot{background:#0d0a0a;border-top:1px solid var(--rule);padding:56px 0 0}
.bchk-fcols{display:grid;gap:34px;grid-template-columns:1.5fr 1fr 1fr 1.2fr;padding-bottom:40px}
.bchk-fcols h4{font-size:15px;color:#fff;margin-bottom:14px}
.bchk-fcols p,.bchk-fcols li{color:var(--ink2);font-size:14px;line-height:1.8}
.bchk-fcols li+li{margin-top:8px}
.bchk-fcols a{display:inline-flex;align-items:center;min-height:32px;transition:color .2s}
.bchk-fcols a:hover{color:var(--gold)}
.bchk-tags{display:flex;flex-wrap:wrap;gap:8px}
.bchk-tags span{padding:5px 12px;border-radius:999px;background:rgba(255,255,255,.06);font-size:13px;color:#ded4d0}
.bchk-copy{border-top:1px solid var(--rule);padding:20px 0;text-align:center;color:#7d716d;font-size:13px;line-height:1.8}

@media (max-width:1024px){
.bchk-grid,.bchk-grid--4{grid-template-columns:repeat(3,1fr)}
.bchk-chans{grid-template-columns:repeat(3,1fr)}
.bchk-genres{grid-template-columns:repeat(2,1fr)}
.bchk-specials{grid-template-columns:1fr}
.bchk-fcols{grid-template-columns:repeat(2,1fr)}
.bchk-hero{padding:76px 0 68px}
.bchk-sec{padding:56px 0}
}
@media (max-width:768px){
.bchk-grid,.bchk-grid--4{grid-template-columns:repeat(2,1fr)}
.bchk-chans{grid-template-columns:repeat(2,1fr)}
.bchk-picks{grid-template-columns:1fr}
.bchk-board{grid-template-columns:1fr}
.bchk-faq{grid-template-columns:1fr}
.bchk-news li{grid-template-columns:76px 1fr;gap:14px}
.bchk-head{margin-bottom:28px}
.bchk-hero{padding:64px 0 58px}
}
@media (max-width:520px){
.bchk-bar{flex-wrap:wrap;gap:10px}
.bchk-nav{width:100%;border-top:1px solid var(--rule);padding-top:4px}
.bchk-nav a{padding:10px 12px;font-size:14px}
.bchk-grid,.bchk-grid--4{grid-template-columns:1fr;gap:18px}
.bchk-chans,.bchk-genres{grid-template-columns:1fr}
.bchk-specials{padding:0}
.bchk-fcols{grid-template-columns:1fr;gap:26px}
.bchk-lead{font-size:15px}
.bchk-btn{width:100%}
.bchk-sec{padding:44px 0}
.bchk-pick{grid-template-columns:1fr;gap:10px}
.bchk-pick b{width:52px}
}