/* roulang page: index */
:root{
  --ink:#101d33;
  --ink2:#5a6b85;
  --paper:#f4f7fd;
  --surf:#ffffff;
  --key:#1f5fd0;
  --key2:#4aa3f0;
  --edge:#e1e8f4;
  --rad:18px;
  --rad2:12px;
  --shd:0 8px 26px rgba(20,48,96,.08);
  --sp:58px;
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;background:var(--paper);color:var(--ink);font:16px/1.75 -apple-system,BlinkMacSystemFont,"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,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4,p{margin:0}
.twfq-wrap{max-width:1180px;margin:0 auto;padding:0 20px}

/* 顶栏 */
.twfq-top{position:sticky;top:0;z-index:60;background:rgba(255,255,255,.95);backdrop-filter:blur(10px);border-bottom:1px solid var(--edge)}
.twfq-topbar{display:flex;align-items:center;gap:16px;min-height:70px}
.twfq-logo{display:flex;align-items:center;gap:10px;font-weight:800;font-size:17px;letter-spacing:-.2px}
.twfq-mark{width:40px;height:40px;border-radius:12px;background:linear-gradient(135deg,var(--key),var(--key2));color:#fff;display:grid;place-items:center;font-size:19px;font-weight:800;box-shadow:0 6px 16px rgba(31,95,208,.28)}
.twfq-nav{margin-left:auto;display:flex;gap:2px;overflow-x:auto;scrollbar-width:none}
.twfq-nav::-webkit-scrollbar{display:none}
.twfq-nav a{display:inline-flex;align-items:center;min-height:44px;padding:0 13px;border-radius:10px;font-size:15px;color:var(--ink2);white-space:nowrap;transition:.2s}
.twfq-nav a:hover,.twfq-nav a.on{background:#eef4ff;color:var(--key);font-weight:700}
.twfq-nav a:focus-visible{outline:2px solid var(--key);outline-offset:2px}

/* 首屏 */
.twfq-hero{position:relative;width:calc(100% - 40px);max-width:1140px;margin:26px auto 0;border-radius:26px;overflow:hidden;background:#0c1930;color:#fff;isolation:isolate}
.twfq-hero-img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;opacity:.4;z-index:-1}
.twfq-hero-in{padding:52px 44px 30px;display:grid;gap:15px;max-width:860px}
.twfq-kicker{display:inline-flex;align-items:center;gap:8px;font-size:13px;letter-spacing:.08em;color:#9fc4f5;font-weight:700}
.twfq-kicker::before{content:"";width:26px;height:2px;background:var(--key2);border-radius:2px}
.twfq-hero h1{font-size:clamp(30px,4.4vw,50px);line-height:1.16;font-weight:800;letter-spacing:-.5px}
.twfq-hero h1 em{font-style:normal;background:linear-gradient(100deg,#8ec6ff,#4aa3f0);-webkit-background-clip:text;background-clip:text;color:transparent}
.twfq-sub{font-size:17px;font-weight:700;color:#cfe0f8}
.twfq-lead{font-size:15.5px;color:#bfd1ea;max-width:720px}
.twfq-acts{display:flex;flex-wrap:wrap;gap:12px;margin-top:8px}
.twfq-btn{display:inline-flex;align-items:center;justify-content:center;min-height:46px;padding:0 26px;border-radius:999px;background:linear-gradient(135deg,var(--key),var(--key2));color:#fff;font-weight:700;font-size:15px;box-shadow:0 10px 22px rgba(31,95,208,.34);transition:.22s}
.twfq-btn:hover{transform:translateY(-2px);box-shadow:0 14px 28px rgba(31,95,208,.42)}
.twfq-btn-ghost{background:rgba(255,255,255,.12);border:1px solid rgba(255,255,255,.42);box-shadow:none}
.twfq-strip{display:flex;gap:10px;overflow-x:auto;padding:14px 24px;border-top:1px solid rgba(255,255,255,.16);background:rgba(8,20,38,.4)}
.twfq-strip a{flex:0 0 auto;display:inline-flex;align-items:center;min-height:44px;padding:0 18px;border-radius:999px;background:rgba(255,255,255,.1);font-size:14px;color:#e8f1ff;transition:.2s}
.twfq-strip a:hover{background:rgba(255,255,255,.24)}

/* 板块通用 */
.twfq-sec{padding:var(--sp) 0}
.twfq-sec-tint{background:#eaf1fc}
.twfq-head{max-width:770px;margin-bottom:28px}
.twfq-head h2{font-size:clamp(22px,2.6vw,30px);font-weight:800;letter-spacing:-.3px}
.twfq-head h2::after{content:"";display:block;width:52px;height:4px;border-radius:4px;background:linear-gradient(90deg,var(--key),var(--key2));margin-top:10px}
.twfq-head p{color:var(--ink2);font-size:15px;margin-top:12px}

/* 合集目录 */
.twfq-cats{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
.twfq-cat{background:var(--surf);border:1px solid var(--edge);border-radius:var(--rad);padding:22px;box-shadow:var(--shd);transition:.22s}
.twfq-cat:hover{transform:translateY(-3px);border-color:#c7d9f5;box-shadow:0 16px 32px rgba(20,48,96,.13)}
.twfq-cat h3{font-size:17px;font-weight:800;margin-bottom:8px;color:#163a6b}
.twfq-cat p{font-size:14px;color:var(--ink2);line-height:1.72}

/* 片单分区 */
.twfq-boards{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
.twfq-board{background:var(--surf);border:1px solid var(--edge);border-radius:var(--rad);padding:22px;box-shadow:var(--shd)}
.twfq-board h3{font-size:16px;font-weight:800;color:#163a6b;padding-bottom:12px;border-bottom:2px solid #eef4ff;margin-bottom:6px}
.twfq-board li{display:flex;align-items:center;justify-content:space-between;gap:10px;padding:11px 0;border-bottom:1px dashed var(--edge);font-size:14.5px}
.twfq-board li:last-child{border-bottom:0}
.twfq-board li span{color:var(--ink2);font-size:12.5px;background:#f1f6fd;padding:2px 9px;border-radius:999px;white-space:nowrap}

/* 排行榜 */
.twfq-ranks{display:grid;grid-template-columns:repeat(2,1fr);gap:10px 20px}
.twfq-rank{display:flex;align-items:center;gap:13px;background:var(--surf);border:1px solid var(--edge);border-radius:var(--rad2);padding:11px 16px;box-shadow:0 4px 14px rgba(20,48,96,.05)}
.twfq-rank b{flex:0 0 auto;width:28px;height:28px;border-radius:9px;background:#e9f1ff;color:var(--key);display:grid;place-items:center;font-size:13px;font-weight:800}
.twfq-rank:nth-child(-n+3) b{background:linear-gradient(135deg,var(--key),var(--key2));color:#fff}
.twfq-rank h3{flex:1;min-width:0;font-size:15px;font-weight:700;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.twfq-rank em{font-style:normal;font-size:12.5px;color:var(--ink2);background:#f0f4fb;padding:3px 10px;border-radius:999px;white-space:nowrap}

/* 卡片墙 */
.twfq-cards{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.twfq-card{background:var(--surf);border:1px solid var(--edge);border-radius:var(--rad);overflow:hidden;box-shadow:var(--shd);transition:.24s}
.twfq-card:hover{transform:translateY(-4px);box-shadow:0 18px 36px rgba(20,48,96,.15)}
.twfq-thumb{position:relative;height:0;padding-bottom:62%;overflow:hidden;background:#dce6f5}
.twfq-thumb img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;transition:transform .45s}
.twfq-card:hover .twfq-thumb img{transform:scale(1.06)}
.twfq-badge{position:absolute;top:10px;left:10px;background:rgba(12,25,48,.8);color:#fff;font-size:12px;padding:3px 10px;border-radius:999px;backdrop-filter:blur(4px)}
.twfq-body{padding:16px 18px 20px}
.twfq-body h3{font-size:16.5px;font-weight:800;margin-bottom:6px}
.twfq-body p{font-size:13.8px;color:var(--ink2);line-height:1.7}
.twfq-meta{display:flex;flex-wrap:wrap;gap:8px;margin-top:12px}
.twfq-meta span{font-size:12.5px;color:#2c4a78;background:#eef4ff;padding:3px 10px;border-radius:999px}

/* 资讯 */
.twfq-news{display:grid;grid-template-columns:repeat(2,1fr);gap:18px}
.twfq-news-item{display:flex;gap:16px;background:var(--surf);border:1px solid var(--edge);border-radius:var(--rad);padding:14px;box-shadow:var(--shd)}
.twfq-news-thumb{flex:0 0 128px;height:94px;border-radius:var(--rad2);overflow:hidden;background:#dce6f5}
.twfq-news-thumb img{width:100%;height:100%;object-fit:cover}
.twfq-news-item h3{font-size:15.5px;font-weight:700;line-height:1.5}
.twfq-news-item .twfq-time{display:inline-block;font-size:12.5px;color:var(--key);font-weight:700;margin-top:6px}
.twfq-news-item p{font-size:13.5px;color:var(--ink2);margin-top:6px;line-height:1.65}

/* 话题标签 */
.twfq-tags{display:flex;flex-wrap:wrap;gap:10px}
.twfq-tags span{display:inline-flex;align-items:center;min-height:42px;padding:0 17px;border-radius:999px;background:var(--surf);border:1px solid var(--edge);font-size:14px;color:#2c4a78;box-shadow:0 3px 10px rgba(20,48,96,.05);transition:.2s}
.twfq-tags span:hover{border-color:#bcd3f2;color:var(--key)}

/* 收藏分享 */
.twfq-share{position:relative;border-radius:26px;overflow:hidden;padding:46px 44px;color:#fff;background:#102a55 url('/assets/images/backpic/back-2.webp') center/cover no-repeat;isolation:isolate}
.twfq-share::before{content:"";position:absolute;inset:0;background:linear-gradient(105deg,rgba(11,30,60,.94) 34%,rgba(11,30,60,.52));z-index:-1}
.twfq-share h2{font-size:clamp(22px,2.6vw,30px);font-weight:800;margin-bottom:14px}
.twfq-share p{font-size:15px;color:#c8d9f0;max-width:700px;margin-bottom:14px}
.twfq-share ul{display:grid;grid-template-columns:repeat(3,1fr);gap:12px;margin-top:22px;max-width:900px}
.twfq-share li{background:rgba(255,255,255,.1);border:1px solid rgba(255,255,255,.18);border-radius:var(--rad2);padding:14px 16px;font-size:13.5px;color:#dbe8f9}

/* 专题索引 */
.twfq-topics{display:grid;grid-template-columns:repeat(2,1fr);gap:20px}
.twfq-topic{display:grid;grid-template-columns:150px 1fr;background:var(--surf);border:1px solid var(--edge);border-radius:var(--rad);overflow:hidden;box-shadow:var(--shd);transition:.24s}
.twfq-topic:hover{transform:translateY(-3px);box-shadow:0 18px 34px rgba(20,48,96,.14)}
.twfq-topic img{width:100%;height:100%;min-height:170px;object-fit:cover}
.twfq-topic-in{padding:20px}
.twfq-topic-in h3{font-size:17px;font-weight:800;margin-bottom:8px}
.twfq-topic-in p{font-size:13.8px;color:var(--ink2);line-height:1.7}

/* 更新日志 */
.twfq-log{display:grid;gap:10px;max-width:920px}
.twfq-log li{display:grid;grid-template-columns:104px 1fr;gap:16px;align-items:start;background:var(--surf);border:1px solid var(--edge);border-left:4px solid var(--key);border-radius:var(--rad2);padding:14px 18px;font-size:14.5px;color:#2c425f;box-shadow:0 4px 12px rgba(20,48,96,.05)}
.twfq-log b{color:var(--key);font-size:13.5px;font-weight:800}

/* 问答 */
.twfq-faq{display:grid;gap:12px;max-width:940px}
.twfq-faq details{background:var(--surf);border:1px solid var(--edge);border-radius:var(--rad2);padding:0 18px;box-shadow:0 4px 14px rgba(20,48,96,.05)}
.twfq-faq summary{cursor:pointer;list-style:none;display:flex;align-items:center;justify-content:space-between;gap:14px;padding:16px 0;font-size:15.5px;font-weight:700;min-height:44px}
.twfq-faq summary::-webkit-details-marker{display:none}
.twfq-faq summary::after{content:"+";color:var(--key);font-size:21px;font-weight:700;line-height:1}
.twfq-faq details[open] summary::after{content:"−"}
.twfq-faq details p{padding:0 0 18px;font-size:14.5px;color:var(--ink2);line-height:1.85}

/* 口碑 */
.twfq-voices{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
.twfq-voice{background:var(--surf);border:1px solid var(--edge);border-radius:var(--rad);padding:20px;box-shadow:var(--shd)}
.twfq-voice p{font-size:14.5px;line-height:1.76;color:#2c425f}
.twfq-who{display:flex;align-items:center;gap:10px;margin-top:15px;font-size:13.5px;color:var(--ink2)}
.twfq-ava{width:34px;height:34px;border-radius:50%;background:linear-gradient(135deg,var(--key),var(--key2));color:#fff;display:grid;place-items:center;font-size:14px;font-weight:700}

/* 页脚 */
.twfq-foot{background:#0d1c33;color:#a9bcd6;margin-top:24px}
.twfq-foot-grid{display:grid;grid-template-columns:1.7fr 1fr 1fr 1fr;gap:28px;padding:52px 0 36px}
.twfq-foot h4{color:#fff;font-size:15px;font-weight:700;margin-bottom:14px}
.twfq-foot li{padding:6px 0;font-size:14px}
.twfq-foot a{transition:.2s}
.twfq-foot a:hover{color:#fff}
.twfq-foot .twfq-about{font-size:14px;line-height:1.8;color:#8fa6c4;max-width:330px;margin-top:12px}
.twfq-copy{border-top:1px solid rgba(255,255,255,.12);padding:18px 0;font-size:13px;color:#7f95b3;display:flex;justify-content:space-between;gap:12px;flex-wrap:wrap}

/* 断点 */
@media(max-width:1024px){
  .twfq-cats,.twfq-boards,.twfq-cards,.twfq-voices,.twfq-share ul{grid-template-columns:repeat(2,1fr)}
  .twfq-hero-in{padding:44px 30px 26px}
  .twfq-share{padding:38px 28px}
  .twfq-topic{grid-template-columns:126px 1fr}
  .twfq-foot-grid{grid-template-columns:1fr 1fr;gap:26px}
}
@media(max-width:768px){
  .twfq-topbar{flex-wrap:wrap;gap:8px;padding:10px 0}
  .twfq-nav{margin:0;width:100%;order:3}
  .twfq-ranks,.twfq-news,.twfq-topics{grid-template-columns:1fr}
  .twfq-hero{width:calc(100% - 24px);border-radius:20px;margin-top:16px}
  .twfq-hero-in{padding:36px 22px 22px}
  .twfq-share{border-radius:20px;padding:32px 22px}
  .twfq-log li{grid-template-columns:1fr;gap:6px}
  .twfq-sec{padding:44px 0}
}
@media(max-width:520px){
  .twfq-cats,.twfq-boards,.twfq-cards,.twfq-voices,.twfq-share ul,.twfq-foot-grid{grid-template-columns:1fr}
  .twfq-news-item{flex-direction:column}
  .twfq-news-thumb{flex:none;width:100%;height:160px}
  .twfq-topic{grid-template-columns:1fr}
  .twfq-topic img{min-height:0;height:170px}
  .twfq-body p,.twfq-news-item p,.twfq-topic-in p,.twfq-cat p{font-size:14px}
  .twfq-logo{font-size:16px}
  .twfq-acts .twfq-btn{flex:1 1 100%}
}