/* roulang page: index */
*,*::before,*::after{box-sizing:border-box}
:root{
--mc1:#0d3f7c;
--mc2:#2f74c9;
--mc3:#f2a33c;
--bgc:#f5f8fd;
--wht:#ffffff;
--fgc:#111f38;
--muted:#5d6b83;
--line:#e3e9f3;
--rad:14px;
--sdw:0 8px 26px rgba(15,52,102,.09);
--gap:24px;
}
html{scroll-behavior:smooth}
body{margin:0;background:var(--bgc);color:var(--fgc);font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,-apple-system,sans-serif;font-size:16px;line-height:1.7;-webkit-font-smoothing:antialiased}
h1,h2,h3,p,figure{margin:0}
ul,ol{margin:0;padding:0;list-style:none}
img{display:block;max-width:100%}
a{color:inherit;text-decoration:none}
button,input{font-family:inherit}
:focus-visible{outline:3px solid #7fb2f0;outline-offset:2px}
.yuiqvsdu-wrap{max-width:1180px;margin:0 auto;padding:0 20px}

/* 顶栏 */
.yuiqvsdu-topbar{position:sticky;top:0;z-index:30;background:rgba(255,255,255,.94);backdrop-filter:blur(10px);border-bottom:1px solid var(--line)}
.yuiqvsdu-topbar .yuiqvsdu-wrap{display:flex;align-items:center;gap:18px;min-height:68px}
.yuiqvsdu-brand{display:inline-flex;align-items:center;gap:10px;min-height:44px;font-size:19px;font-weight:700;letter-spacing:.5px;color:var(--mc1)}
.yuiqvsdu-brandmark{width:34px;height:34px;border-radius:10px;background:linear-gradient(135deg,var(--mc1),var(--mc2));color:#fff;display:grid;place-items:center;font-size:15px;font-weight:700;flex:none}
.yuiqvsdu-nav{margin-left:auto;display:flex;gap:4px;flex-wrap:wrap}
.yuiqvsdu-nav a{display:inline-flex;align-items:center;min-height:44px;padding:0 13px;border-radius:9px;font-size:15px;color:var(--muted);transition:color .2s,background .2s}
.yuiqvsdu-nav a:hover{color:var(--mc1);background:#eaf1fb}

/* 首屏 */
.yuiqvsdu-hero{position:relative;isolation:isolate;padding:78px 0 72px;color:#fff;background:url("/assets/images/backpic/back-1.webp") center/cover no-repeat}
.yuiqvsdu-hero::before{content:"";position:absolute;inset:0;z-index:-1;background:linear-gradient(115deg,rgba(9,30,62,.94) 0%,rgba(13,63,124,.83) 52%,rgba(11,44,88,.6) 100%)}
.yuiqvsdu-herobox{max-width:860px;margin:0 auto;text-align:center}
.yuiqvsdu-hero h1{font-size:clamp(28px,4.6vw,46px);line-height:1.24;font-weight:800;letter-spacing:1px}
.yuiqvsdu-hero h1 em{font-style:normal;color:#ffc978}
.yuiqvsdu-lead{margin-top:14px;font-size:17px;letter-spacing:.5px;color:#dbe8fa}
.yuiqvsdu-lede{max-width:790px;margin:16px auto 0;font-size:15px;line-height:1.95;color:rgba(255,255,255,.82)}
.yuiqvsdu-chips{display:flex;flex-wrap:wrap;justify-content:center;gap:10px;margin-top:22px}
.yuiqvsdu-chips li{padding:6px 14px;border-radius:999px;background:rgba(255,255,255,.14);border:1px solid rgba(255,255,255,.3);font-size:14px;line-height:1.6}
.yuiqvsdu-search{display:flex;gap:12px;max-width:540px;margin:26px auto 0}
.yuiqvsdu-input{flex:1;min-height:48px;padding:0 16px;border-radius:11px;border:1px solid rgba(255,255,255,.5);background:rgba(255,255,255,.95);font-size:15px;color:var(--fgc)}
.yuiqvsdu-btn{display:inline-flex;align-items:center;justify-content:center;min-height:48px;padding:0 26px;border:0;border-radius:11px;background:var(--mc3);color:#2a1c02;font-size:16px;font-weight:700;letter-spacing:.5px;cursor:pointer;transition:transform .2s,box-shadow .2s}
.yuiqvsdu-btn:hover{transform:translateY(-2px);box-shadow:0 12px 24px rgba(242,163,60,.35)}

/* 板块骨架 */
.yuiqvsdu-sec{padding:58px 0;scroll-margin-top:82px}
.yuiqvsdu-sec--wht{background:var(--wht);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.yuiqvsdu-head{max-width:760px;margin-bottom:26px}
.yuiqvsdu-h2{font-size:25px;line-height:1.38;letter-spacing:.4px;font-weight:700}
.yuiqvsdu-p{margin-top:10px;font-size:15px;color:var(--muted);line-height:1.85}

/* 人群三栏 */
.yuiqvsdu-cols3{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.yuiqvsdu-plain{background:var(--wht);border:1px solid var(--line);border-left:4px solid var(--mc2);border-radius:12px;padding:22px 22px 24px;box-shadow:var(--sdw)}
.yuiqvsdu-plain h3{font-size:17px;font-weight:700;color:var(--mc1)}
.yuiqvsdu-plain p{margin-top:8px;font-size:14px;line-height:1.8;color:var(--muted)}

/* 口味对照 */
.yuiqvsdu-duo{display:grid;grid-template-columns:1fr 1fr;gap:22px}
.yuiqvsdu-duoitem{background:var(--wht);border:1px solid var(--line);border-radius:var(--rad);padding:26px;box-shadow:var(--sdw)}
.yuiqvsdu-duoitem h3{font-size:18px;color:var(--mc1)}
.yuiqvsdu-duoitem p{margin-top:10px;font-size:15px;line-height:1.85;color:var(--muted)}
.yuiqvsdu-duoitem--warm{border-top:4px solid var(--mc3)}
.yuiqvsdu-note{display:inline-block;margin-top:14px;padding:4px 12px;border-radius:7px;background:#eaf1fb;font-size:13px;color:var(--mc1)}

/* 分区标签 */
.yuiqvsdu-cats{display:grid;grid-template-columns:repeat(3,1fr);gap:18px;margin-top:26px}
.yuiqvsdu-cats li{background:var(--wht);border:1px solid var(--line);border-radius:12px;padding:20px;box-shadow:0 4px 14px rgba(15,52,102,.05)}
.yuiqvsdu-cats strong{display:block;font-size:16px;color:var(--mc1);letter-spacing:.4px}
.yuiqvsdu-cats span{display:block;margin-top:6px;font-size:14px;line-height:1.75;color:var(--muted)}

/* 片卡 */
.yuiqvsdu-rail{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.yuiqvsdu-card{background:var(--wht);border:1px solid var(--line);border-radius:var(--rad);overflow:hidden;box-shadow:var(--sdw);transition:transform .25s,box-shadow .25s}
.yuiqvsdu-card:hover{transform:translateY(-4px);box-shadow:0 16px 34px rgba(15,52,102,.15)}
.yuiqvsdu-thumb{position:relative;width:100%;aspect-ratio:3/4;background:#dfe7f3;overflow:hidden}
.yuiqvsdu-thumb img{width:100%;height:100%;object-fit:cover}
.yuiqvsdu-badge{position:absolute;top:10px;left:10px;padding:3px 9px;border-radius:7px;background:rgba(9,32,66,.84);color:#fff;font-size:12px;letter-spacing:.5px}
.yuiqvsdu-score{position:absolute;right:10px;bottom:10px;padding:2px 9px;border-radius:7px;background:rgba(242,163,60,.95);color:#2a1c02;font-size:13px;font-weight:700}
.yuiqvsdu-cardbody{padding:14px 16px 18px}
.yuiqvsdu-cardbody h3{font-size:17px;line-height:1.42;font-weight:700}
.yuiqvsdu-meta{margin-top:6px;font-size:13px;color:var(--muted)}
.yuiqvsdu-desc{margin-top:8px;font-size:14px;line-height:1.7;color:var(--muted)}

/* 横卡 */
.yuiqvsdu-row3{display:grid;gap:18px}
.yuiqvsdu-rowcard{display:grid;grid-template-columns:132px 1fr;background:var(--wht);border:1px solid var(--line);border-radius:var(--rad);overflow:hidden;box-shadow:var(--sdw);transition:box-shadow .25s}
.yuiqvsdu-rowcard:hover{box-shadow:0 14px 30px rgba(15,52,102,.14)}
.yuiqvsdu-rowcard .yuiqvsdu-thumb{aspect-ratio:auto;height:100%;min-height:172px}

/* 榜单 */
.yuiqvsdu-rank{display:grid;grid-template-columns:1fr 1fr;gap:0 40px;margin-top:24px}
.yuiqvsdu-rank li{display:flex;align-items:center;gap:14px;min-height:48px;padding:10px 0;border-bottom:1px dashed var(--line)}
.yuiqvsdu-no{width:28px;height:28px;border-radius:8px;background:#eaf1fb;color:var(--mc1);font-size:14px;font-weight:700;display:grid;place-items:center;flex:none}
.yuiqvsdu-no--top{background:var(--mc1);color:#fff}
.yuiqvsdu-rt{font-size:16px;flex:1;min-width:0}
.yuiqvsdu-rtag{padding:2px 8px;border-radius:6px;background:#eaf1fb;color:var(--mc2);font-size:12px;flex:none}
.yuiqvsdu-rheat{font-size:13px;color:var(--muted);flex:none}

/* 资讯 */
.yuiqvsdu-news{display:grid;grid-template-columns:repeat(3,1fr);gap:22px;margin-top:24px}
.yuiqvsdu-newscard{background:var(--wht);border:1px solid var(--line);border-radius:var(--rad);overflow:hidden;box-shadow:var(--sdw)}
.yuiqvsdu-newsimg{height:150px;overflow:hidden}
.yuiqvsdu-newsimg img{width:100%;height:100%;object-fit:cover}
.yuiqvsdu-newsbody{padding:16px 18px 20px}
.yuiqvsdu-time{font-size:13px;font-weight:600;color:var(--mc2);letter-spacing:.5px}
.yuiqvsdu-newsbody h3{margin-top:6px;font-size:17px;line-height:1.45}
.yuiqvsdu-newsbody p{margin-top:8px;font-size:14px;line-height:1.75;color:var(--muted)}

/* 专题 */
.yuiqvsdu-topics{display:grid;grid-template-columns:repeat(3,1fr);gap:22px;margin-top:24px}
.yuiqvsdu-topic{background:var(--wht);border:1px solid var(--line);border-top:4px solid var(--mc2);border-radius:var(--rad);padding:24px;box-shadow:var(--sdw)}
.yuiqvsdu-topic h3{font-size:18px;color:var(--mc1)}
.yuiqvsdu-topic p{margin-top:10px;font-size:14px;line-height:1.8;color:var(--muted)}
.yuiqvsdu-topicmeta{display:inline-block;margin-top:16px;padding:3px 11px;border-radius:7px;background:#eaf1fb;color:var(--mc1);font-size:13px}

/* 观看体验 */
.yuiqvsdu-guard{display:grid;grid-template-columns:repeat(4,1fr);gap:18px;margin-top:24px}
.yuiqvsdu-guarditem{background:var(--wht);border:1px solid var(--line);border-radius:12px;padding:20px;box-shadow:0 4px 14px rgba(15,52,102,.05)}
.yuiqvsdu-guarditem h3{font-size:16px;color:var(--mc1)}
.yuiqvsdu-guarditem p{margin-top:8px;font-size:14px;line-height:1.75;color:var(--muted)}

/* 问答 */
.yuiqvsdu-faq{display:grid;gap:12px;max-width:880px;margin-top:24px}
.yuiqvsdu-faq details{background:var(--wht);border:1px solid var(--line);border-radius:12px;padding:0 18px;box-shadow:0 4px 14px rgba(15,52,102,.05)}
.yuiqvsdu-faq summary{display:flex;align-items:center;min-height:52px;font-size:16px;font-weight:600;cursor:pointer;list-style:none}
.yuiqvsdu-faq summary::-webkit-details-marker{display:none}
.yuiqvsdu-faq summary::after{content:"+";margin-left:auto;color:var(--mc2);font-size:20px;line-height:1}
.yuiqvsdu-faq details[open] summary::after{content:"−"}
.yuiqvsdu-faq p{padding:0 0 18px;font-size:15px;line-height:1.85;color:var(--muted)}

/* 收口 */
.yuiqvsdu-cta{position:relative;isolation:isolate;overflow:hidden;border-radius:18px;padding:52px 32px;text-align:center;color:#fff;background:url("/assets/images/backpic/back-4.webp") center/cover no-repeat}
.yuiqvsdu-cta::before{content:"";position:absolute;inset:0;z-index:-1;background:linear-gradient(120deg,rgba(9,30,62,.92),rgba(13,63,124,.72))}
.yuiqvsdu-cta h2{font-size:26px;font-weight:800;letter-spacing:.6px}
.yuiqvsdu-cta p{max-width:620px;margin:12px auto 24px;font-size:15px;line-height:1.85;color:rgba(255,255,255,.85)}

/* 页脚 */
.yuiqvsdu-foot{margin-top:20px;background:#0a2547;color:#c6d5e9}
.yuiqvsdu-footgrid{display:grid;grid-template-columns:1.7fr 1fr 1fr 1fr;gap:30px;padding:52px 0 34px}
.yuiqvsdu-footbrand{font-size:19px;font-weight:700;color:#fff}
.yuiqvsdu-foottext{max-width:320px;margin-top:10px;font-size:14px;line-height:1.8;color:#9fb4cf}
.yuiqvsdu-footgrid h3{margin-bottom:12px;font-size:15px;color:#fff;letter-spacing:.5px}
.yuiqvsdu-footgrid li{margin-bottom:4px}
.yuiqvsdu-footgrid a{display:inline-flex;align-items:center;min-height:44px;font-size:14px;color:#a9bdd6;transition:color .2s}
.yuiqvsdu-footgrid a:hover{color:#fff}
.yuiqvsdu-copy{border-top:1px solid rgba(255,255,255,.12);padding:18px 0 26px;font-size:13px;color:#8ba3c0}

@media (max-width:1024px){
.yuiqvsdu-nav a{padding:0 10px;font-size:14px}
.yuiqvsdu-rail{grid-template-columns:repeat(2,1fr)}
.yuiqvsdu-cols3{grid-template-columns:1fr}
.yuiqvsdu-cats{grid-template-columns:repeat(2,1fr)}
.yuiqvsdu-news{grid-template-columns:repeat(2,1fr)}
.yuiqvsdu-topics{grid-template-columns:repeat(2,1fr)}
.yuiqvsdu-guard{grid-template-columns:repeat(2,1fr)}
.yuiqvsdu-rank{grid-template-columns:1fr;gap:0}
.yuiqvsdu-footgrid{grid-template-columns:1fr 1fr;gap:24px}
}
@media (max-width:768px){
.yuiqvsdu-topbar .yuiqvsdu-wrap{flex-wrap:wrap;padding-top:10px;padding-bottom:8px;gap:8px}
.yuiqvsdu-nav{margin-left:0;width:100%;flex-wrap:nowrap;overflow-x:auto;gap:2px;scrollbar-width:none}
.yuiqvsdu-nav::-webkit-scrollbar{display:none}
.yuiqvsdu-hero{padding:56px 0 54px}
.yuiqvsdu-lead{font-size:16px}
.yuiqvsdu-sec{padding:44px 0;scroll-margin-top:112px}
.yuiqvsdu-h2{font-size:22px}
.yuiqvsdu-duo{grid-template-columns:1fr}
.yuiqvsdu-news{grid-template-columns:1fr}
.yuiqvsdu-topics{grid-template-columns:1fr}
.yuiqvsdu-cta{padding:40px 22px}
.yuiqvsdu-cta h2{font-size:22px}
.yuiqvsdu-rheat{display:none}
}
@media (max-width:520px){
.yuiqvsdu-rail{grid-template-columns:1fr}
.yuiqvsdu-cats{grid-template-columns:1fr}
.yuiqvsdu-guard{grid-template-columns:1fr}
.yuiqvsdu-search{flex-direction:column}
.yuiqvsdu-rowcard{grid-template-columns:104px 1fr}
.yuiqvsdu-rowcard .yuiqvsdu-thumb{min-height:150px}
.yuiqvsdu-footgrid{grid-template-columns:1fr}
.yuiqvsdu-rt{font-size:15px}
}