/* roulang page: index */
:root{
  --bk:#183257;
  --sky:#2f6fed;
  --paper:#f4f7fd;
  --ink:#16233a;
  --sub:#5d6c85;
  --edge:#dee7f5;
  --rr:16px;
  --shd:0 10px 28px rgba(24,50,87,.08);
  --gap:22px;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;padding-bottom:70px;
  font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,-apple-system,sans-serif;
  background:var(--paper);color:var(--ink);line-height:1.75;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border:0}
a{color:inherit;text-decoration:none}
h1,h2,h3{margin:0}
ul,ol{margin:0;padding:0;list-style:none}
p{margin:0}
button,input{font:inherit}
.uswgkl-wrap{max-width:1180px;margin:0 auto;padding:0 20px}

/* 顶栏 */
.uswgkl-head{
  position:sticky;top:0;z-index:60;
  background:rgba(255,255,255,.94);
  backdrop-filter:blur(12px);
  border-bottom:1px solid var(--edge);
}
.uswgkl-head-in{
  max-width:1180px;margin:0 auto;padding:11px 20px;
  display:flex;align-items:center;gap:22px;
}
.uswgkl-logo{display:flex;align-items:center;gap:11px;flex:none}
.uswgkl-logo-mark{
  width:42px;height:42px;border-radius:13px;
  background:linear-gradient(135deg,var(--sky),var(--bk));
  color:#fff;display:grid;place-items:center;
  font-size:19px;font-weight:800;letter-spacing:1px;
  box-shadow:0 6px 16px rgba(47,111,237,.28);
}
.uswgkl-logo-txt{font-size:16px;font-weight:800;color:var(--bk);line-height:1.25;letter-spacing:.3px}
.uswgkl-logo-txt small{display:block;font-size:11px;font-weight:400;color:var(--sub);letter-spacing:1.5px}
.uswgkl-nav{margin-left:auto;display:flex;gap:4px;overflow-x:auto;scrollbar-width:none}
.uswgkl-nav::-webkit-scrollbar{display:none}
.uswgkl-nav a{
  display:flex;align-items:center;min-height:44px;padding:0 14px;
  border-radius:10px;font-size:15px;color:var(--sub);white-space:nowrap;
  transition:background .2s,color .2s;
}
.uswgkl-nav a:hover{color:var(--bk);background:#eaf1fd}
.uswgkl-nav a.uswgkl-on{color:var(--bk);background:#e4edfd;font-weight:600}

/* 首屏 */
.uswgkl-hero{position:relative;overflow:hidden;background:var(--bk);color:#fff;padding:74px 0 66px}
.uswgkl-hero-bg{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;opacity:.34}
.uswgkl-hero-wrap{position:relative;max-width:1180px;margin:0 auto;padding:0 20px}
.uswgkl-hero-tag{
  display:inline-flex;align-items:center;gap:8px;
  padding:6px 15px;border-radius:999px;
  background:rgba(255,255,255,.15);border:1px solid rgba(255,255,255,.26);
  font-size:13px;letter-spacing:1px;
}
.uswgkl-hero h1{
  font-size:clamp(30px,4.8vw,52px);line-height:1.16;font-weight:800;
  margin:20px 0 14px;max-width:15em;letter-spacing:1px;
}
.uswgkl-hero h1 em{font-style:normal;color:#ffd479}
.uswgkl-hero-sub{font-size:17px;color:#d5e3f8;margin-bottom:14px;font-weight:500}
.uswgkl-lead{max-width:660px;font-size:15px;line-height:1.95;color:#c6d6ef}
.uswgkl-btns{display:flex;flex-wrap:wrap;gap:13px;margin-top:28px}
.uswgkl-btn{
  display:inline-flex;align-items:center;justify-content:center;
  min-height:46px;padding:0 26px;border-radius:12px;
  font-size:15px;font-weight:600;transition:.22s;
}
.uswgkl-btn-main{background:#fff;color:var(--bk)}
.uswgkl-btn-main:hover{transform:translateY(-2px);box-shadow:0 14px 26px rgba(0,0,0,.2)}
.uswgkl-btn-ghost{border:1px solid rgba(255,255,255,.5);color:#fff}
.uswgkl-btn-ghost:hover{background:rgba(255,255,255,.14)}
.uswgkl-btn-sky{background:var(--sky);color:#fff}
.uswgkl-btn-sky:hover{background:#1e5cd6;transform:translateY(-2px)}
.uswgkl-btn:focus-visible{outline:3px solid #ffd479;outline-offset:3px}
.uswgkl-zones{display:flex;flex-wrap:wrap;gap:10px;margin-top:38px}
.uswgkl-zone{
  display:inline-flex;align-items:center;gap:9px;
  padding:9px 16px;border-radius:999px;
  background:rgba(255,255,255,.11);border:1px solid rgba(255,255,255,.22);
  font-size:14px;
}
.uswgkl-zone b{font-weight:600}
.uswgkl-zone span{font-size:12px;color:#a9c0e2}

/* 板块通用 */
.uswgkl-sec{padding:66px 0;background:var(--paper)}
.uswgkl-sec.uswgkl-alt{background:#fff}
.uswgkl-sec-h{margin-bottom:30px}
.uswgkl-sec-h h2{font-size:clamp(21px,2.6vw,29px);font-weight:800;color:var(--bk);letter-spacing:.4px}
.uswgkl-sec-h p{margin-top:11px;font-size:15px;color:var(--sub);max-width:800px}

/* 品牌故事 */
.uswgkl-story{display:grid;grid-template-columns:1.05fr .95fr;gap:40px;align-items:center}
.uswgkl-story figure{margin:0;border-radius:20px;overflow:hidden;box-shadow:0 18px 40px rgba(24,50,87,.14)}
.uswgkl-story figure img{width:100%;aspect-ratio:4/3;object-fit:cover}
.uswgkl-story h2{font-size:clamp(21px,2.6vw,29px);color:var(--bk);font-weight:800;margin-bottom:14px}
.uswgkl-story p{font-size:15px;color:var(--sub);margin-bottom:13px}
.uswgkl-points{display:grid;gap:12px;margin-top:22px}
.uswgkl-points li{
  background:#fff;border:1px solid var(--edge);border-left:4px solid var(--sky);
  border-radius:12px;padding:13px 18px;font-size:14px;color:var(--sub);
}
.uswgkl-points li b{display:block;color:var(--ink);font-size:15px;margin-bottom:2px}

/* 题材频道 */
.uswgkl-cats{display:grid;grid-template-columns:repeat(auto-fill,minmax(248px,1fr));gap:18px}
.uswgkl-cat{
  background:#fff;border:1px solid var(--edge);border-radius:var(--rr);
  padding:24px 22px;box-shadow:var(--shd);transition:.24s;
}
.uswgkl-cat:hover{transform:translateY(-3px);box-shadow:0 16px 34px rgba(24,50,87,.13)}
.uswgkl-cat i{
  display:inline-block;font-style:normal;font-size:12px;
  color:var(--sky);background:#eef4ff;border-radius:999px;
  padding:3px 11px;margin-bottom:13px;letter-spacing:.5px;
}
.uswgkl-cat h3{font-size:17px;color:var(--bk);margin-bottom:8px;font-weight:700}
.uswgkl-cat p{font-size:14px;color:var(--sub);line-height:1.75}

/* 卡片网格 */
.uswgkl-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(196px,1fr));gap:var(--gap)}
.uswgkl-card{
  background:#fff;border:1px solid var(--edge);border-radius:var(--rr);
  overflow:hidden;box-shadow:var(--shd);display:flex;flex-direction:column;
  transition:transform .24s,box-shadow .24s;
}
.uswgkl-card:hover{transform:translateY(-4px);box-shadow:0 18px 36px rgba(24,50,87,.15)}
.uswgkl-thumb{position:relative;aspect-ratio:3/4;background:#e7eefb;overflow:hidden}
.uswgkl-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .35s}
.uswgkl-card:hover .uswgkl-thumb img{transform:scale(1.04)}
.uswgkl-badge{
  position:absolute;left:10px;top:10px;padding:3px 10px;border-radius:8px;
  font-size:12px;background:rgba(24,50,87,.88);color:#fff;letter-spacing:.5px;
}
.uswgkl-card-b{padding:14px 15px 17px}
.uswgkl-card-b h3{font-size:15px;color:var(--ink);margin-bottom:6px;font-weight:700}
.uswgkl-card-b p{font-size:14px;color:var(--sub);line-height:1.72}
.uswgkl-chip{
  display:inline-block;margin-top:10px;font-size:12px;
  color:var(--sky);background:#eef4ff;border-radius:999px;padding:2px 10px;
}

/* 排行榜 */
.uswgkl-rank{display:grid;grid-template-columns:1fr 1fr;gap:11px}
.uswgkl-rank li{
  display:flex;align-items:center;gap:14px;
  background:#fff;border:1px solid var(--edge);border-radius:13px;
  padding:13px 17px;box-shadow:var(--shd);
}
.uswgkl-no{
  flex:none;width:30px;height:30px;border-radius:9px;
  background:#eaf1fd;color:var(--bk);display:grid;place-items:center;
  font-size:14px;font-weight:800;
}
.uswgkl-rank li:nth-child(-n+3) .uswgkl-no{background:var(--bk);color:#fff}
.uswgkl-rank h3{font-size:15px;color:var(--ink);font-weight:700;margin-bottom:2px}
.uswgkl-rank small{display:block;font-size:13px;color:var(--sub)}
.uswgkl-rank .uswgkl-chip{margin:0 0 0 auto;white-space:nowrap}

/* 主题书单 */
.uswgkl-feats{display:grid;grid-template-columns:repeat(auto-fit,minmax(268px,1fr));gap:20px}
.uswgkl-feat{
  position:relative;border-radius:20px;overflow:hidden;min-height:236px;
  display:flex;align-items:flex-end;box-shadow:0 16px 34px rgba(24,50,87,.16);
}
.uswgkl-feat img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover}
.uswgkl-feat-b{
  position:relative;padding:24px 22px;width:100%;color:#fff;
  background:linear-gradient(to top,rgba(9,20,38,.9),rgba(9,20,38,.05));
}
.uswgkl-feat-b h3{font-size:19px;margin-bottom:7px;font-weight:700}
.uswgkl-feat-b p{font-size:14px;color:#cfdcef;line-height:1.7}
.uswgkl-feat-b span{
  display:inline-block;margin-top:12px;font-size:12px;
  background:rgba(255,255,255,.18);border-radius:999px;padding:3px 12px;
}

/* 完结长篇列表 */
.uswgkl-list{display:grid;gap:11px}
.uswgkl-list li{
  display:flex;align-items:center;gap:18px;
  background:#fff;border:1px solid var(--edge);border-radius:13px;
  padding:15px 20px;box-shadow:var(--shd);
}
.uswgkl-list h3{flex:none;width:132px;font-size:15px;color:var(--bk);font-weight:700}
.uswgkl-list p{flex:1;font-size:14px;color:var(--sub)}
.uswgkl-state{
  flex:none;font-size:12px;color:#1f7a55;background:#e6f6ee;
  border-radius:999px;padding:3px 11px;
}

/* 会员权益 */
.uswgkl-vip{
  display:grid;grid-template-columns:1.05fr 1fr;gap:34px;align-items:center;
  background:linear-gradient(135deg,#152c50,#2f6fed);
  border-radius:24px;padding:44px;color:#fff;
  box-shadow:0 22px 46px rgba(21,44,80,.24);
}
.uswgkl-vip h2{font-size:clamp(21px,2.6vw,28px);font-weight:800;margin-bottom:13px}
.uswgkl-vip p{font-size:15px;color:#cfdcf2;margin-bottom:20px;max-width:430px}
.uswgkl-vip-grid{display:grid;grid-template-columns:1fr 1fr;gap:13px}
.uswgkl-vip-grid div{background:rgba(255,255,255,.13);border-radius:13px;padding:15px 16px}
.uswgkl-vip-grid b{display:block;font-size:15px;margin-bottom:4px}
.uswgkl-vip-grid small{font-size:13px;color:#c8d8f0;line-height:1.6}

/* 资讯 */
.uswgkl-news{display:grid;gap:12px}
.uswgkl-news li{
  display:flex;gap:18px;align-items:flex-start;
  background:#fff;border:1px solid var(--edge);border-radius:13px;
  padding:17px 20px;box-shadow:var(--shd);
}
.uswgkl-news-time{
  flex:none;font-size:12px;color:var(--sky);background:#eef4ff;
  border-radius:999px;padding:3px 12px;margin-top:3px;
}
.uswgkl-news h3{font-size:15px;color:var(--ink);font-weight:700;margin-bottom:4px}
.uswgkl-news p{font-size:14px;color:var(--sub)}

/* 保障条 */
.uswgkl-guard{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}
.uswgkl-guard div{
  background:#fff;border:1px solid var(--edge);border-radius:var(--rr);
  padding:22px 18px;text-align:center;box-shadow:var(--shd);
}
.uswgkl-guard span{
  display:grid;place-items:center;width:44px;height:44px;margin:0 auto 12px;
  border-radius:13px;background:#eaf1fd;color:var(--bk);
  font-size:17px;font-weight:800;
}
.uswgkl-guard b{display:block;font-size:15px;color:var(--ink);margin-bottom:6px}
.uswgkl-guard small{font-size:13.5px;color:var(--sub);line-height:1.65}

/* 读者口碑 */
.uswgkl-voice{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.uswgkl-voice blockquote{
  margin:0;background:#fff;border:1px solid var(--edge);border-radius:var(--rr);
  padding:24px 22px;box-shadow:var(--shd);
}
.uswgkl-voice blockquote p{font-size:14.5px;color:var(--ink);line-height:1.8;margin-bottom:14px}
.uswgkl-voice cite{font-style:normal;font-size:13px;color:var(--sub)}
.uswgkl-voice cite::before{content:"— "}

/* 收口 */
.uswgkl-end{
  background:var(--bk);color:#fff;border-radius:24px;
  padding:48px 36px;text-align:center;
  box-shadow:0 22px 46px rgba(24,50,87,.22);
}
.uswgkl-end h2{font-size:clamp(22px,2.8vw,30px);font-weight:800;margin-bottom:13px}
.uswgkl-end p{max-width:660px;margin:0 auto 24px;font-size:15px;color:#c8d8f0}
.uswgkl-end .uswgkl-btns{justify-content:center;margin-top:0}

/* 页脚 */
.uswgkl-foot{background:#101d33;color:#9fb2cc;padding:52px 0 26px;margin-top:66px}
.uswgkl-foot-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:32px}
.uswgkl-foot h3{font-size:15px;color:#fff;margin-bottom:14px;font-weight:700}
.uswgkl-foot p{font-size:13.5px;line-height:1.85}
.uswgkl-foot ul{display:grid;gap:9px}
.uswgkl-foot li a{font-size:13.5px;color:#9fb2cc;transition:color .2s}
.uswgkl-foot li a:hover{color:#fff}
.uswgkl-foot-say{font-size:13.5px;line-height:1.85;color:#8fa4c2}
.uswgkl-copy{
  max-width:1180px;margin:34px auto 0;padding:18px 20px 0;
  border-top:1px solid rgba(255,255,255,.1);
  font-size:13px;color:#7f93b0;text-align:center;
}

/* 底部固定条 */
.uswgkl-fix{
  position:fixed;left:0;right:0;bottom:0;z-index:70;
  background:rgba(16,29,51,.97);color:#fff;
  display:flex;align-items:center;justify-content:space-between;gap:14px;
  padding:9px 20px;box-shadow:0 -6px 20px rgba(16,29,51,.24);
}
.uswgkl-fix p{font-size:13.5px;color:#c3d3ea}
.uswgkl-fix .uswgkl-btn{min-height:40px;padding:0 20px;font-size:14px;flex:none}

@media(max-width:1024px){
  .uswgkl-story{grid-template-columns:1fr;gap:28px}
  .uswgkl-vip{grid-template-columns:1fr;padding:32px}
  .uswgkl-guard{grid-template-columns:repeat(2,1fr)}
  .uswgkl-voice{grid-template-columns:1fr 1fr}
  .uswgkl-foot-grid{grid-template-columns:1fr 1fr;gap:26px}
}
@media(max-width:768px){
  .uswgkl-head-in{flex-wrap:wrap;gap:8px;padding:10px 16px}
  .uswgkl-nav{margin-left:0;width:100%;gap:2px}
  .uswgkl-nav a{padding:9px 12px;font-size:14px}
  .uswgkl-hero{padding:52px 0 46px}
  .uswgkl-zones{gap:8px;margin-top:28px}
  .uswgkl-zone{font-size:13px;padding:8px 13px}
  .uswgkl-sec{padding:48px 0}
  .uswgkl-grid{grid-template-columns:repeat(2,1fr);gap:14px}
  .uswgkl-rank{grid-template-columns:1fr}
  .uswgkl-voice{grid-template-columns:1fr}
  .uswgkl-list li{flex-wrap:wrap;gap:8px}
  .uswgkl-list h3{width:auto}
  .uswgkl-list p{flex:1 1 100%;order:3}
  .uswgkl-news li{flex-direction:column;gap:8px}
  .uswgkl-vip-grid{grid-template-columns:1fr}
}
@media(max-width:520px){
  body{padding-bottom:78px}
  .uswgkl-logo-txt{font-size:15px}
  .uswgkl-hero h1{font-size:28px;letter-spacing:.5px}
  .uswgkl-hero-sub{font-size:15px}
  .uswgkl-lead{font-size:14px}
  .uswgkl-btns{gap:10px}
  .uswgkl-btn{padding:0 20px;font-size:14px}
  .uswgkl-sec{padding:40px 0}
  .uswgkl-grid{grid-template-columns:repeat(2,1fr);gap:12px}
  .uswgkl-card-b{padding:11px 12px 14px}
  .uswgkl-card-b p{font-size:14px}
  .uswgkl-guard{grid-template-columns:1fr}
  .uswgkl-feats{grid-template-columns:1fr}
  .uswgkl-end{padding:36px 20px}
  .uswgkl-foot-grid{grid-template-columns:1fr}
  .uswgkl-fix p{font-size:12.5px}
  .uswgkl-fix .uswgkl-btn{min-height:38px;padding:0 14px;font-size:13px}
}