/* roulang page: index */
:root{
  --zm-main:#1f5fbf;
  --zm-aux:#0f9b8e;
  --zm-paper:#f4f8fd;
  --zm-ink:#101e33;
  --zm-dim:#5f7290;
  --zm-line:#e3eaf6;
  --zm-r:16px;
  --zm-sh:0 8px 24px rgba(22,54,105,.08);
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;background:var(--zm-paper);color:var(--zm-ink);font-size:15px;line-height:1.7;font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;-webkit-font-smoothing:antialiased}
img{display:block;max-width:100%}
a{color:inherit;text-decoration:none}
ul{margin:0;padding:0;list-style:none}
h1,h2,h3{margin:0;line-height:1.28}
p{margin:0}
.bcp-wrap{max-width:1160px;margin:0 auto;padding:0 24px}
section[id]{scroll-margin-top:78px}

/* 顶栏 */
.bcp-hd{position:sticky;top:0;z-index:30;background:rgba(255,255,255,.94);backdrop-filter:blur(10px);border-bottom:1px solid var(--zm-line)}
.bcp-hd-in{display:flex;align-items:center;gap:20px;min-height:66px}
.bcp-brand{display:flex;align-items:center;gap:10px;font-weight:700;font-size:16px;white-space:nowrap;overflow:hidden}
.bcp-brand-mk{width:34px;height:34px;flex:none;border-radius:10px;background:linear-gradient(135deg,var(--zm-main),#4d8ef7);color:#fff;display:grid;place-items:center;font-size:17px;box-shadow:0 6px 16px rgba(31,95,191,.3)}
.bcp-nav{margin-left:auto;display:flex;gap:4px;overflow-x:auto;scrollbar-width:none}
.bcp-nav::-webkit-scrollbar{display:none}
.bcp-nav a{display:flex;align-items:center;min-height:44px;padding:0 14px;border-radius:999px;font-size:14px;color:var(--zm-dim);transition:.2s}
.bcp-nav a:hover{background:#eaf1fd;color:var(--zm-main)}

/* 首屏 */
.bcp-hero{position:relative;overflow:hidden;background:#0d2444;color:#fff;padding:70px 0 62px}
.bcp-hero-bg{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;z-index:0;opacity:.55}
.bcp-hero::after{content:"";position:absolute;inset:0;z-index:1;background:linear-gradient(102deg,rgba(8,23,47,.95),rgba(12,40,84,.85) 58%,rgba(16,58,124,.6))}
.bcp-hero-in{position:relative;z-index:2;display:grid;grid-template-columns:1.12fr .88fr;gap:46px;align-items:center}
.bcp-eyebrow{display:inline-block;margin-bottom:16px;padding:5px 14px;border-radius:999px;background:rgba(255,255,255,.13);border:1px solid rgba(255,255,255,.24);font-size:13px;letter-spacing:.04em}
.bcp-hero h1{font-size:38px;font-weight:800;letter-spacing:.01em}
.bcp-hero h1 .bcp-hl{color:#84b6ff}
.bcp-hero-sub{margin-top:14px;font-size:20px;font-weight:600;color:#dbe8ff}
.bcp-hero-tx{margin-top:14px;max-width:560px;font-size:15px;color:rgba(226,237,255,.78)}
.bcp-hero-btn{display:flex;flex-wrap:wrap;gap:12px;margin-top:26px}
.bcp-btn{display:inline-flex;align-items:center;justify-content:center;min-height:46px;padding:0 24px;border-radius:12px;font-size:15px;font-weight:600;transition:.22s}
.bcp-btn-main{background:#2f7bf6;color:#fff;box-shadow:0 10px 24px rgba(47,123,246,.34)}
.bcp-btn-main:hover{background:#1f68e0;transform:translateY(-1px)}
.bcp-btn-ghost{border:1px solid rgba(255,255,255,.45);color:#fff}
.bcp-btn-ghost:hover{background:rgba(255,255,255,.13)}
.bcp-hero-side{background:rgba(255,255,255,.1);border:1px solid rgba(255,255,255,.18);border-radius:18px;padding:22px}
.bcp-side-tt{font-size:15px;font-weight:600;margin-bottom:14px}
.bcp-quick{display:grid;grid-template-columns:1fr 1fr;gap:10px}
.bcp-quick a{display:block;min-height:64px;padding:12px 14px;border-radius:12px;background:rgba(255,255,255,.1);transition:.2s}
.bcp-quick a:hover{background:rgba(255,255,255,.22);transform:translateY(-2px)}
.bcp-quick span{display:block;font-size:14px;font-weight:600}
.bcp-quick em{display:block;margin-top:2px;font-style:normal;font-size:12px;color:rgba(255,255,255,.66)}

/* 通用板块 */
.bcp-sec{padding:58px 0}
.bcp-alt{background:#fff}
.bcp-head{max-width:760px;margin-bottom:30px}
.bcp-head h2{font-size:25px;font-weight:700}
.bcp-head h2::after{content:"";display:block;width:44px;height:3px;border-radius:3px;background:var(--zm-main);margin-top:12px}
.bcp-head p{margin-top:14px;color:var(--zm-dim);font-size:14.5px}

/* 片库速览 */
.bcp-stats{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}
.bcp-stat{background:#fff;border:1px solid var(--zm-line);border-radius:var(--zm-r);padding:22px 20px;box-shadow:var(--zm-sh)}
.bcp-stat strong{display:block;font-size:17px;color:var(--zm-main);margin-bottom:6px}
.bcp-stat p{font-size:13.5px;color:var(--zm-dim)}

/* 分类频道 */
.bcp-cats{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
.bcp-cat{background:#fff;border:1px solid var(--zm-line);border-radius:14px;padding:20px;box-shadow:var(--zm-sh)}
.bcp-cat h3{font-size:16px;margin-bottom:8px}
.bcp-cat h3::before{content:"";display:inline-block;width:7px;height:7px;border-radius:2px;background:var(--zm-main);margin-right:8px;vertical-align:middle}
.bcp-cat p{font-size:13.5px;color:var(--zm-dim)}

/* 卡片 */
.bcp-cards{display:grid;grid-template-columns:repeat(auto-fill,minmax(164px,1fr));gap:20px}
.bcp-card{background:#fff;border:1px solid var(--zm-line);border-radius:14px;overflow:hidden;box-shadow:var(--zm-sh);transition:.24s}
.bcp-card:hover{transform:translateY(-4px);box-shadow:0 16px 34px rgba(20,50,100,.15)}
.bcp-thumb{position:relative;aspect-ratio:3/4;overflow:hidden;background:#e7eefb}
.bcp-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .4s}
.bcp-card:hover .bcp-thumb img{transform:scale(1.05)}
.bcp-badge{position:absolute;top:8px;left:8px;padding:2px 9px;border-radius:999px;font-size:11.5px;font-weight:600;background:rgba(9,26,52,.72);color:#fff}
.bcp-score{position:absolute;right:8px;bottom:8px;padding:2px 9px;border-radius:999px;background:#ffb020;color:#3a2400;font-size:12px;font-weight:700}
.bcp-card-bd{padding:12px 13px 14px}
.bcp-card-bd h3{font-size:14.5px;font-weight:600;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.bcp-card-bd p{margin-top:3px;font-size:12.5px;color:var(--zm-dim)}

/* 热门推荐行 */
.bcp-rows{display:grid;gap:14px}
.bcp-rows li{display:flex;align-items:center;gap:16px;background:#fff;border:1px solid var(--zm-line);border-radius:14px;padding:12px 18px;box-shadow:var(--zm-sh);transition:.2s}
.bcp-rows li:hover{border-color:#c9dcfa;transform:translateX(3px)}
.bcp-rowthumb{flex:none;width:62px;height:82px;border-radius:9px;overflow:hidden;background:#e7eefb}
.bcp-rowthumb img{width:100%;height:100%;object-fit:cover}
.bcp-rowbody h3{font-size:15px}
.bcp-rowbody p{margin-top:3px;font-size:13px;color:var(--zm-dim)}
.bcp-rowscore{margin-left:auto;flex:none;font-size:13px;font-weight:700;color:#8a5a00;background:#ffeec9;border-radius:8px;padding:4px 10px}

/* 排行榜 */
.bcp-rank{background:#fff;border:1px solid var(--zm-line);border-radius:18px;overflow:hidden;box-shadow:var(--zm-sh)}
.bcp-rank li{display:flex;align-items:center;gap:14px;padding:13px 20px;border-bottom:1px solid var(--zm-line);min-height:56px}
.bcp-rank li:last-child{border-bottom:0}
.bcp-no{flex:none;width:26px;height:26px;border-radius:8px;background:#eef3fc;color:var(--zm-main);font-size:13px;font-weight:700;display:grid;place-items:center}
.bcp-rank li:nth-child(-n+3) .bcp-no{background:linear-gradient(135deg,#2f7bf6,#5b9bff);color:#fff}
.bcp-rname{font-size:15px;font-weight:600}
.bcp-rmeta{margin-left:auto;display:flex;align-items:center;gap:10px;white-space:nowrap}
.bcp-rtype{background:#eef4fe;color:var(--zm-main);border-radius:999px;padding:2px 10px;font-size:12px}
.bcp-rhot{font-style:normal;font-size:12.5px;color:var(--zm-dim)}

/* 高分好评 */
.bcp-wide{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.bcp-wide li{display:flex;gap:14px;background:#fff;border:1px solid var(--zm-line);border-radius:16px;padding:14px;box-shadow:var(--zm-sh)}
.bcp-wthumb{flex:none;width:86px;height:116px;border-radius:10px;overflow:hidden;background:#e7eefb}
.bcp-wthumb img{width:100%;height:100%;object-fit:cover}
.bcp-wbody h3{font-size:15px;margin-bottom:6px}
.bcp-wbody .bcp-wscore{display:inline-block;font-size:12px;font-weight:700;color:#8a5a00;background:#ffeec9;border-radius:6px;padding:1px 8px;margin-bottom:8px}
.bcp-wbody p{font-size:13px;color:var(--zm-dim);line-height:1.6}

/* 主题片单 */
.bcp-picks{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.bcp-pick{background:#fff;border:1px solid var(--zm-line);border-radius:16px;padding:24px;box-shadow:var(--zm-sh);transition:.2s}
.bcp-pick:hover{border-color:#c9dcfa;transform:translateY(-3px)}
.bcp-pick h3{font-size:16px;margin-bottom:10px}
.bcp-pick p{font-size:13.5px;color:var(--zm-dim)}
.bcp-pick-mk{display:inline-block;margin-bottom:12px;padding:3px 11px;border-radius:999px;background:#eaf3ff;color:var(--zm-main);font-size:12px;font-weight:600}

/* 口碑 */
.bcp-bubbles{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
.bcp-bub{background:#fff;border:1px solid var(--zm-line);border-radius:16px;padding:18px;box-shadow:var(--zm-sh)}
.bcp-bub-top{display:flex;align-items:center;gap:10px;margin-bottom:10px}
.bcp-ava{flex:none;width:36px;height:36px;border-radius:50%;background:linear-gradient(135deg,#dbe8fc,#b9d1f7);color:var(--zm-main);display:grid;place-items:center;font-size:14px;font-weight:700}
.bcp-bub-top b{font-size:13.5px}
.bcp-bub p{font-size:13.5px;color:var(--zm-dim)}

/* 资讯 */
.bcp-news{display:grid;grid-template-columns:repeat(2,1fr);gap:16px}
.bcp-news li{background:#fff;border:1px solid var(--zm-line);border-radius:14px;padding:18px 20px;box-shadow:var(--zm-sh)}
.bcp-news h3{font-size:15px;margin-bottom:8px}
.bcp-news span{display:inline-block;font-size:12px;color:var(--zm-main);background:#eef4fe;border-radius:999px;padding:2px 10px}
.bcp-news p{margin-top:9px;font-size:13.5px;color:var(--zm-dim)}

/* 问答 */
.bcp-faq{display:grid;grid-template-columns:repeat(2,1fr);gap:18px}
.bcp-faq li{background:#fff;border:1px solid var(--zm-line);border-radius:16px;padding:22px;box-shadow:var(--zm-sh)}
.bcp-faq h3{font-size:15.5px;margin-bottom:9px}
.bcp-faq p{font-size:13.5px;color:var(--zm-dim);line-height:1.75}

/* 收口 */
.bcp-cta{position:relative;overflow:hidden;background:#0d2444;color:#fff;padding:66px 0}
.bcp-cta img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;z-index:0;opacity:.4}
.bcp-cta::after{content:"";position:absolute;inset:0;z-index:1;background:linear-gradient(100deg,rgba(8,23,47,.94),rgba(15,48,98,.72))}
.bcp-cta-in{position:relative;z-index:2;max-width:700px}
.bcp-cta h2{font-size:26px;font-weight:700}
.bcp-cta p{margin-top:14px;font-size:14.5px;color:rgba(226,237,255,.8)}
.bcp-cta .bcp-btn{margin-top:24px}

/* 页脚 */
.bcp-ft{background:#0a1a30;color:#c3d3ea;padding:52px 0 0;font-size:13.5px}
.bcp-ft-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:32px}
.bcp-ft h3{font-size:14.5px;color:#fff;margin-bottom:14px}
.bcp-ft p{color:#93a8c6}
.bcp-ft a{display:inline-block;padding:8px 0;min-height:36px;color:#c3d3ea;transition:.2s}
.bcp-ft a:hover{color:#fff}
.bcp-ft-plain{display:block;padding:8px 0;color:#93a8c6}
.bcp-ft-btm{margin-top:36px;border-top:1px solid rgba(255,255,255,.12);padding:18px 0;font-size:12.5px;color:#8296b3}

@media(max-width:1024px){
  .bcp-hero{padding:56px 0 48px}
  .bcp-hero h1{font-size:31px}
  .bcp-hero-in{grid-template-columns:1fr;gap:32px}
  .bcp-stats{grid-template-columns:repeat(2,1fr)}
  .bcp-cats,.bcp-picks,.bcp-bubbles,.bcp-wide{grid-template-columns:repeat(2,1fr)}
}
@media(max-width:768px){
  .bcp-sec{padding:44px 0}
  .bcp-head h2{font-size:22px}
  .bcp-news,.bcp-faq{grid-template-columns:1fr}
  .bcp-ft-grid{grid-template-columns:1fr 1fr;gap:24px}
  .bcp-cta h2{font-size:22px}
}
@media(max-width:520px){
  .bcp-wrap{padding:0 16px}
  .bcp-brand{font-size:12.5px}
  .bcp-hero h1{font-size:24px}
  .bcp-hero-sub{font-size:17px}
  .bcp-cards{grid-template-columns:repeat(2,1fr);gap:14px}
  .bcp-cats,.bcp-picks,.bcp-bubbles,.bcp-wide,.bcp-stats{grid-template-columns:1fr}
  .bcp-quick{grid-template-columns:1fr 1fr}
  .bcp-ft-grid{grid-template-columns:1fr}
  .bcp-rhot{display:none}
  .bcp-card-bd p,.bcp-cat p,.bcp-faq p,.bcp-news p,.bcp-bub p{font-size:14px}
}