/* roulang page: index */
:root{
--clr-a:#1d4e8f;
--clr-b:#e9f1fb;
--clr-bg:#f6f9fc;
--clr-tx:#16212e;
--clr-mu:#5c6b7d;
--clr-bd:#dfe6ef;
--rd:14px;
--sh:0 12px 30px rgba(22,45,80,.09);
--sp:28px;
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:86px}
body{margin:0;background:var(--clr-bg);color:var(--clr-tx);font-size:16px;line-height:1.72;font-family:"PingFang SC","Microsoft YaHei","Hiragino Sans GB",system-ui,-apple-system,sans-serif;-webkit-font-smoothing:antialiased}
h1,h2,h3,p{margin:0}
ul{margin:0;padding:0;list-style:none}
a{color:inherit;text-decoration:none}
img{display:block;max-width:100%}
button,input{font-family:inherit}
/* 骨架容器 */
.yixautcxh-wrap{width:100%;max-width:1180px;margin:0 auto;padding:0 24px}

/* 顶栏 */
.yixautcxh-head{position:sticky;top:0;z-index:30;background:rgba(255,255,255,.95);border-bottom:1px solid var(--clr-bd);backdrop-filter:blur(10px)}
.yixautcxh-head-in{display:flex;align-items:center;gap:18px;min-height:70px}
.yixautcxh-logo{width:42px;height:42px;flex:0 0 42px;border-radius:12px;background:linear-gradient(135deg,#12325c,#3f7fd0);color:#fff;display:grid;place-items:center;font-size:18px;font-weight:700}
.yixautcxh-brand{font-size:19px;font-weight:700;letter-spacing:.6px;white-space:nowrap}
.yixautcxh-nav{margin-left:auto;overflow-x:auto;scrollbar-width:none}
.yixautcxh-nav::-webkit-scrollbar{display:none}
.yixautcxh-nav ul{display:flex;gap:4px}
.yixautcxh-nav a{display:inline-flex;align-items:center;min-height:44px;padding:0 14px;border-radius:10px;font-size:15px;color:var(--clr-mu);transition:background .2s,color .2s}
.yixautcxh-nav a:hover{background:var(--clr-b);color:var(--clr-a)}
.yixautcxh-nav a.is-on{background:var(--clr-b);color:var(--clr-a);font-weight:600}

/* 首屏 */
.yixautcxh-hero{position:relative;overflow:hidden;isolation:isolate;border-bottom:1px solid var(--clr-bd)}
.yixautcxh-hero-bg{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;z-index:-2}
.yixautcxh-hero::after{content:"";position:absolute;inset:0;z-index:-1;background:linear-gradient(180deg,rgba(246,249,252,.94),rgba(246,249,252,.88))}
.yixautcxh-hero-in{max-width:840px;margin:0 auto;padding:86px 0 90px;text-align:center}
.yixautcxh-h1{font-size:44px;line-height:1.24;font-weight:800;letter-spacing:1.5px}
.yixautcxh-h1 em{font-style:normal;color:var(--clr-a)}
.yixautcxh-sub{margin-top:16px;font-size:18px;color:var(--clr-mu);letter-spacing:.5px}
.yixautcxh-lede{margin:20px auto 0;max-width:700px;font-size:15.5px;color:#3d4c5e}
.yixautcxh-search{display:flex;gap:10px;max-width:580px;margin:28px auto 0;padding:8px;background:#fff;border:1px solid var(--clr-bd);border-radius:16px;box-shadow:var(--sh)}
.yixautcxh-search input{flex:1;min-width:0;min-height:46px;padding:0 12px;border:0;outline:0;font-size:15px;color:var(--clr-tx);background:transparent}
.yixautcxh-search input::placeholder{color:#98a6b7}
.yixautcxh-btn{display:inline-flex;align-items:center;justify-content:center;min-height:46px;padding:0 22px;border:0;border-radius:12px;background:var(--clr-a);color:#fff;font-size:15px;font-weight:600;cursor:pointer;transition:background .2s,transform .2s}
.yixautcxh-btn:hover{background:#164077;transform:translateY(-1px)}
.yixautcxh-btn:focus-visible{outline:3px solid rgba(29,78,143,.35);outline-offset:2px}
.yixautcxh-hero-tags{display:flex;flex-wrap:wrap;justify-content:center;gap:10px;margin-top:24px}
.yixautcxh-chip{padding:5px 14px;border-radius:999px;background:#fff;border:1px solid var(--clr-bd);font-size:13px;color:var(--clr-mu)}

/* 板块 */
.yixautcxh-sec{padding:66px 0}
.yixautcxh-sec-alt{background:#fff;border-top:1px solid var(--clr-bd);border-bottom:1px solid var(--clr-bd)}
.yixautcxh-head2{font-size:26px;font-weight:700;letter-spacing:.8px}
.yixautcxh-note{margin-top:12px;max-width:780px;font-size:15px;color:var(--clr-mu)}
.yixautcxh-grid{display:grid;gap:22px;margin-top:34px}
.yixautcxh-g6{grid-template-columns:repeat(6,1fr)}
.yixautcxh-g4{grid-template-columns:repeat(4,1fr)}

/* 卡片 */
.yixautcxh-card{background:#fff;border:1px solid var(--clr-bd);border-radius:var(--rd);overflow:hidden;box-shadow:0 5px 16px rgba(22,45,80,.055);transition:transform .25s,box-shadow .25s}
.yixautcxh-card:hover{transform:translateY(-5px);box-shadow:var(--sh)}
.yixautcxh-thumb{position:relative;display:block;padding-top:132%;overflow:hidden;background:var(--clr-b)}
.yixautcxh-thumb img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;transition:transform .35s}
.yixautcxh-card:hover .yixautcxh-thumb img{transform:scale(1.06)}
.yixautcxh-badge{position:absolute;top:8px;left:8px;padding:2px 9px;border-radius:999px;background:rgba(29,78,143,.92);color:#fff;font-size:12px;font-weight:600;line-height:1.7}
.yixautcxh-score{position:absolute;right:8px;bottom:8px;padding:2px 8px;border-radius:8px;background:rgba(12,24,38,.7);color:#ffd57a;font-size:12px;font-weight:700}
.yixautcxh-body{padding:12px 13px 15px}
.yixautcxh-name{font-size:15px;font-weight:600;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.yixautcxh-meta{margin-top:5px;font-size:13px;color:var(--clr-mu)}

/* 分类频道 */
.yixautcxh-cats{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;margin-top:34px}
.yixautcxh-cat{padding:22px 24px;background:#fff;border:1px solid var(--clr-bd);border-left:3px solid var(--clr-a);border-radius:12px;box-shadow:0 5px 14px rgba(22,45,80,.045)}
.yixautcxh-cat h3{font-size:17px;font-weight:700;margin-bottom:8px}
.yixautcxh-cat p{font-size:14px;color:var(--clr-mu)}

/* 排行榜 */
.yixautcxh-rank{display:grid;grid-template-columns:repeat(2,1fr);gap:0 44px;margin-top:34px}
.yixautcxh-rank li{display:flex;align-items:center;gap:14px;min-height:58px;padding:12px 2px;border-bottom:1px dashed var(--clr-bd)}
.yixautcxh-no{flex:0 0 27px;width:27px;height:27px;border-radius:9px;background:var(--clr-b);color:var(--clr-a);font-size:13px;font-weight:700;display:grid;place-items:center}
.yixautcxh-no-hot{background:var(--clr-a);color:#fff}
.yixautcxh-rank-name{font-size:15px;font-weight:600}
.yixautcxh-rank-hot{margin-left:auto;font-size:13px;color:var(--clr-mu);white-space:nowrap}
.yixautcxh-tag{padding:2px 9px;border-radius:999px;background:var(--clr-b);color:var(--clr-a);font-size:12px;font-weight:600;white-space:nowrap}

/* 类型专区 */
.yixautcxh-types{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;margin-top:34px}
.yixautcxh-type{padding:22px;background:#fff;border:1px solid var(--clr-bd);border-radius:var(--rd);box-shadow:0 5px 16px rgba(22,45,80,.055)}
.yixautcxh-type h3{font-size:16px;color:var(--clr-a);margin-bottom:12px}
.yixautcxh-type li{padding:9px 0;font-size:14px;color:#3d4c5e;border-bottom:1px dotted var(--clr-bd)}
.yixautcxh-type li:last-child{border-bottom:0}

/* 主题书单 */
.yixautcxh-topics{display:grid;grid-template-columns:repeat(3,1fr);gap:22px;margin-top:34px}
.yixautcxh-topic{position:relative;min-height:270px;display:flex;align-items:flex-end;border-radius:16px;overflow:hidden;isolation:isolate;box-shadow:var(--sh)}
.yixautcxh-topic img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;z-index:-2}
.yixautcxh-topic::after{content:"";position:absolute;inset:0;z-index:-1;background:linear-gradient(180deg,rgba(10,26,45,.12),rgba(10,26,45,.84))}
.yixautcxh-topic-in{padding:24px;color:#fff}
.yixautcxh-topic h3{font-size:18px;margin-bottom:8px}
.yixautcxh-topic p{font-size:13.5px;color:rgba(255,255,255,.87)}

/* 高分好书 */
.yixautcxh-good{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;margin-top:34px}
.yixautcxh-good-card{padding:22px;background:#fff;border:1px solid var(--clr-bd);border-radius:var(--rd);box-shadow:0 5px 16px rgba(22,45,80,.055);transition:transform .25s,box-shadow .25s}
.yixautcxh-good-card:hover{transform:translateY(-4px);box-shadow:var(--sh)}
.yixautcxh-good-top{display:flex;align-items:baseline;gap:12px;margin-bottom:10px}
.yixautcxh-good-top h3{font-size:16px;font-weight:700}
.yixautcxh-rate{font-size:20px;font-weight:800;color:#b98724}
.yixautcxh-good-card p{font-size:14px;color:var(--clr-mu)}

/* 连载速递 */
.yixautcxh-serial{display:grid;grid-template-columns:repeat(2,1fr);gap:18px;margin-top:34px}
.yixautcxh-ser{display:flex;align-items:center;gap:16px;padding:20px 22px;background:#fff;border:1px solid var(--clr-bd);border-radius:12px;box-shadow:0 5px 14px rgba(22,45,80,.045)}
.yixautcxh-ser h3{font-size:16px;font-weight:700}
.yixautcxh-ser span{display:block;margin-top:4px;font-size:13px;color:var(--clr-mu)}
.yixautcxh-ser .yixautcxh-tag{margin-left:auto}

/* 资讯 */
.yixautcxh-news{display:grid;grid-template-columns:repeat(2,1fr);gap:20px;margin-top:34px}
.yixautcxh-news li{display:flex;gap:16px;padding:14px;background:#fff;border:1px solid var(--clr-bd);border-radius:14px;box-shadow:0 5px 14px rgba(22,45,80,.045);transition:transform .22s,box-shadow .22s}
.yixautcxh-news li:hover{transform:translateY(-3px);box-shadow:var(--sh)}
.yixautcxh-news-thumb{flex:0 0 120px;width:120px;height:90px;border-radius:10px;overflow:hidden;background:var(--clr-b)}
.yixautcxh-news-thumb img{width:100%;height:100%;object-fit:cover}
.yixautcxh-news h3{font-size:15px;font-weight:600;line-height:1.5}
.yixautcxh-news span{display:block;margin-top:8px;font-size:13px;color:var(--clr-mu)}

/* 读者口碑 */
.yixautcxh-voices{display:grid;grid-template-columns:repeat(2,1fr);gap:20px;margin-top:34px}
.yixautcxh-voice{padding:24px;background:#fff;border:1px solid var(--clr-bd);border-radius:var(--rd);box-shadow:0 5px 16px rgba(22,45,80,.05)}
.yixautcxh-voice p{font-size:14.5px;color:#3d4c5e}
.yixautcxh-who{display:flex;align-items:center;gap:10px;margin-top:16px;font-size:13px;color:var(--clr-mu)}
.yixautcxh-ava{width:32px;height:32px;border-radius:50%;background:var(--clr-b);color:var(--clr-a);display:grid;place-items:center;font-size:13px;font-weight:700}

/* 问答 */
.yixautcxh-faq{display:grid;grid-template-columns:repeat(2,1fr);gap:18px;margin-top:34px}
.yixautcxh-faq li{padding:22px 24px;background:#fff;border:1px solid var(--clr-bd);border-radius:12px;box-shadow:0 5px 14px rgba(22,45,80,.045)}
.yixautcxh-faq h3{font-size:15.5px;font-weight:700}
.yixautcxh-faq p{margin-top:9px;font-size:14px;color:var(--clr-mu)}

/* 收口 */
.yixautcxh-cta{padding:56px 40px;text-align:center;border-radius:22px;background:linear-gradient(135deg,#12325c,#2a6099);color:#fff;box-shadow:0 20px 44px rgba(18,50,92,.24)}
.yixautcxh-cta h2{font-size:28px;font-weight:800;letter-spacing:1px}
.yixautcxh-cta p{max-width:640px;margin:16px auto 0;font-size:15px;color:rgba(255,255,255,.86)}
.yixautcxh-cta .yixautcxh-btn{margin-top:26px;background:#fff;color:#12325c}
.yixautcxh-cta .yixautcxh-btn:hover{background:#eaf1fa}

/* 页脚 */
.yixautcxh-foot{margin-top:0;padding:58px 0 0;background:#0f2136;color:#c3d1e2}
.yixautcxh-foot-grid{display:grid;grid-template-columns:1.7fr 1fr 1fr 1fr;gap:32px}
.yixautcxh-foot-brand{display:flex;align-items:center;gap:12px;margin-bottom:14px;color:#fff;font-size:17px;font-weight:700}
.yixautcxh-foot p{font-size:14px;line-height:1.8;color:#9db0c6}
.yixautcxh-foot h3{margin-bottom:14px;font-size:14px;font-weight:700;color:#fff;letter-spacing:1.2px}
.yixautcxh-foot li{padding:6px 0;font-size:14px}
.yixautcxh-foot a:hover{color:#fff}
.yixautcxh-copy{display:flex;flex-wrap:wrap;justify-content:space-between;gap:12px;margin-top:42px;padding:20px 0;border-top:1px solid rgba(255,255,255,.1);font-size:13px;color:#8ea3ba}

@media (max-width:1024px){
.yixautcxh-h1{font-size:36px}
.yixautcxh-g6{grid-template-columns:repeat(3,1fr)}
.yixautcxh-g4{grid-template-columns:repeat(2,1fr)}
.yixautcxh-cats{grid-template-columns:repeat(2,1fr)}
.yixautcxh-types{grid-template-columns:repeat(2,1fr)}
.yixautcxh-topics{grid-template-columns:repeat(2,1fr)}
.yixautcxh-good{grid-template-columns:repeat(2,1fr)}
.yixautcxh-foot-grid{grid-template-columns:repeat(2,1fr)}
}
@media (max-width:768px){
.yixautcxh-head-in{flex-wrap:wrap;gap:6px;padding:10px 0;min-height:0}
.yixautcxh-nav{margin-left:0;width:100%}
.yixautcxh-hero-in{padding:58px 0 62px}
.yixautcxh-h1{font-size:30px;letter-spacing:.8px}
.yixautcxh-sub{font-size:16px}
.yixautcxh-sec{padding:48px 0}
.yixautcxh-head2{font-size:22px}
.yixautcxh-rank{grid-template-columns:1fr;gap:0}
.yixautcxh-news{grid-template-columns:1fr}
.yixautcxh-voices{grid-template-columns:1fr}
.yixautcxh-faq{grid-template-columns:1fr}
.yixautcxh-serial{grid-template-columns:1fr}
.yixautcxh-topics{grid-template-columns:1fr}
.yixautcxh-cta{padding:40px 24px}
.yixautcxh-cta h2{font-size:23px}
}
@media (max-width:520px){
.yixautcxh-wrap{padding:0 16px}
.yixautcxh-h1{font-size:25px}
.yixautcxh-hero-in{padding:44px 0 50px}
.yixautcxh-search{flex-direction:column;border-radius:14px}
.yixautcxh-search .yixautcxh-btn{width:100%}
.yixautcxh-g6{grid-template-columns:repeat(2,1fr)}
.yixautcxh-g4{grid-template-columns:repeat(2,1fr)}
.yixautcxh-cats{grid-template-columns:1fr}
.yixautcxh-types{grid-template-columns:1fr}
.yixautcxh-good{grid-template-columns:1fr}
.yixautcxh-foot-grid{grid-template-columns:1fr;gap:26px}
.yixautcxh-news-thumb{flex:0 0 96px;width:96px;height:80px}
.yixautcxh-news h3{font-size:14px}
}