/* roulang page: index */
*,*::before,*::after{box-sizing:border-box}
:root{
  --lhy-main:#1b4d8f;
  --lhy-sub:#3f7fd6;
  --lhy-tint:#eaf2fc;
  --lhy-bg:#f5f8fc;
  --lhy-ink:#16233a;
  --lhy-dim:#5d6b82;
  --lhy-line:#e1e9f4;
  --lhy-r:14px;
  --lhy-shadow:0 8px 24px rgba(20,50,95,.07);
  --lhy-gap:26px;
}
html{scroll-behavior:smooth;scroll-padding-top:86px}
body{margin:0;background:var(--lhy-bg);color:var(--lhy-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%;height:auto}
a{color:inherit;text-decoration:none}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,p,figure,blockquote{margin:0}
h1,h2,h3{line-height:1.35}
.iislhhy-wrap{width:100%;max-width:1180px;margin:0 auto;padding:0 22px}

/* 顶部 */
.iislhhy-top{position:sticky;top:0;z-index:20;background:rgba(255,255,255,.94);border-bottom:1px solid var(--lhy-line);backdrop-filter:blur(10px)}
.iislhhy-bar{display:flex;align-items:center;gap:22px;min-height:68px}
.iislhhy-brand{display:flex;align-items:center;gap:10px;font-size:17px;font-weight:700;letter-spacing:.3px;flex:none}
.iislhhy-mark{width:36px;height:36px;border-radius:11px;display:grid;place-items:center;background:linear-gradient(135deg,var(--lhy-main),var(--lhy-sub));color:#fff;font-size:16px;font-weight:700}
.iislhhy-brand[aria-current="page"] .iislhhy-mark{box-shadow:0 0 0 3px rgba(63,127,214,.22)}
.iislhhy-nav{display:flex;gap:2px;margin-left:auto;overflow-x:auto;scrollbar-width:none}
.iislhhy-nav::-webkit-scrollbar{display:none}
.iislhhy-nav a{display:flex;align-items:center;min-height:44px;padding:8px 14px;border-radius:999px;font-size:14.5px;color:var(--lhy-dim);white-space:nowrap;transition:color .2s,background .2s}
.iislhhy-nav a:hover{color:var(--lhy-main);background:var(--lhy-tint)}
.iislhhy-nav a:focus-visible{outline:3px solid rgba(63,127,214,.45);outline-offset:2px}

/* 首屏 */
.iislhhy-hero{padding:54px 0 48px;background:linear-gradient(180deg,#edf4fd 0%,#f5f8fc 72%);overflow:hidden}
.iislhhy-hero-grid{display:grid;grid-template-columns:5fr 7fr;gap:42px;align-items:center}
.iislhhy-hero-copy{transform:translateY(8px)}
.iislhhy-kicker{display:inline-block;font-size:12.5px;letter-spacing:.14em;color:var(--lhy-main);background:#fff;border:1px solid var(--lhy-line);border-radius:999px;padding:5px 15px;box-shadow:var(--lhy-shadow)}
.iislhhy-hero h1{font-size:clamp(27px,3.4vw,40px);margin:18px 0 12px;letter-spacing:.6px}
.iislhhy-hero h1 span{color:var(--lhy-sub)}
.iislhhy-hero-sub{font-size:17px;font-weight:600;color:#28405f}
.iislhhy-hero-text{margin-top:12px;font-size:15px;color:var(--lhy-dim);max-width:560px}
.iislhhy-hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:26px}
.iislhhy-btn{display:inline-flex;align-items:center;justify-content:center;min-height:46px;padding:0 24px;border-radius:999px;background:var(--lhy-main);color:#fff;font-size:15px;font-weight:600;box-shadow:0 10px 22px rgba(27,77,143,.24);transition:background .2s,transform .2s,box-shadow .2s}
.iislhhy-btn:hover{background:#16437d;transform:translateY(-2px)}
.iislhhy-btn:focus-visible{outline:3px solid rgba(63,127,214,.5);outline-offset:2px}
.iislhhy-btn--line{background:#fff;color:var(--lhy-main);border:1px solid #c9dcf5;box-shadow:none}
.iislhhy-btn--line:hover{background:var(--lhy-tint);color:var(--lhy-main)}
.iislhhy-kpis{display:flex;flex-wrap:wrap;gap:26px;margin-top:30px;padding-top:22px;border-top:1px solid var(--lhy-line)}
.iislhhy-kpis strong{display:block;font-size:15px;color:var(--lhy-main)}
.iislhhy-kpis span{font-size:13px;color:var(--lhy-dim)}
.iislhhy-hero-visual{position:relative}
.iislhhy-hero-visual::before{content:"";position:absolute;inset:24px -14px -18px 28px;border-radius:24px;background:linear-gradient(135deg,#d9e7fa,#eef4fd);z-index:0}
.iislhhy-hero-visual img{position:relative;z-index:1;width:100%;aspect-ratio:16/11;object-fit:cover;border-radius:20px;box-shadow:0 26px 48px rgba(18,48,92,.2);transform:rotate(-1.6deg)}

/* 板块通用 */
.iislhhy-sec{padding:58px 0}
.iislhhy-sec--white{background:#fff;border-top:1px solid var(--lhy-line);border-bottom:1px solid var(--lhy-line)}
.iislhhy-head{max-width:720px;margin-bottom:30px}
.iislhhy-head h2{font-size:clamp(21px,2.3vw,27px);letter-spacing:.3px}
.iislhhy-head p{margin-top:10px;font-size:15px;color:var(--lhy-dim)}

/* 卖点三连 */
.iislhhy-trio{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.iislhhy-trio li{background:#fff;border:1px solid var(--lhy-line);border-radius:var(--lhy-r);padding:24px 22px;box-shadow:var(--lhy-shadow)}
.iislhhy-trio b{display:block;font-size:12.5px;letter-spacing:.16em;color:var(--lhy-sub);margin-bottom:10px}
.iislhhy-trio h3{font-size:17px;margin-bottom:8px}
.iislhhy-trio p{font-size:14px;color:var(--lhy-dim)}

/* 入口矩阵 */
.iislhhy-matrix{display:grid;grid-template-columns:repeat(3,1fr);gap:14px}
.iislhhy-matrix a{display:grid;gap:3px;min-height:64px;padding:15px 20px;background:#fff;border:1px solid var(--lhy-line);border-radius:12px;box-shadow:var(--lhy-shadow);transition:border-color .2s,transform .2s}
.iislhhy-matrix a:hover{border-color:#bcd6f7;transform:translateY(-2px)}
.iislhhy-matrix a:focus-visible{outline:3px solid rgba(63,127,214,.45);outline-offset:2px}
.iislhhy-matrix span{font-size:15px;font-weight:600}
.iislhhy-matrix small{font-size:12.5px;color:var(--lhy-dim)}

/* 卡片 */
.iislhhy-cards{display:grid;grid-template-columns:repeat(3,1fr);gap:var(--lhy-gap)}
.iislhhy-card{display:flex;flex-direction:column;background:#fff;border:1px solid var(--lhy-line);border-radius:var(--lhy-r);overflow:hidden;box-shadow:var(--lhy-shadow);transition:transform .22s,box-shadow .22s}
.iislhhy-card:hover{transform:translateY(-4px);box-shadow:0 16px 34px rgba(20,50,95,.13)}
.iislhhy-thumb{position:relative;aspect-ratio:16/10;overflow:hidden;background:#dde7f5}
.iislhhy-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .35s}
.iislhhy-card:hover .iislhhy-thumb img{transform:scale(1.04)}
.iislhhy-badge{position:absolute;top:10px;left:10px;padding:3px 10px;border-radius:999px;background:rgba(13,34,64,.74);color:#fff;font-size:12px;letter-spacing:.04em}
.iislhhy-card-body{display:flex;flex-direction:column;gap:6px;flex:1;padding:15px 17px 19px}
.iislhhy-card-body h3{font-size:16px}
.iislhhy-card-body p{font-size:13.5px;color:var(--lhy-dim)}
.iislhhy-meta{margin-top:auto;padding-top:8px;border-top:1px dashed var(--lhy-line);font-size:12.5px;color:#7c8aa0}

/* 专题 */
.iislhhy-topics{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.iislhhy-topic{padding:26px 24px 24px;border:1px solid #d8e5f7;border-radius:18px;background:linear-gradient(155deg,#fff 32%,#e9f2fd);box-shadow:var(--lhy-shadow)}
.iislhhy-topic b{font-size:12.5px;letter-spacing:.16em;color:var(--lhy-sub)}
.iislhhy-topic h3{font-size:18px;margin:8px 0}
.iislhhy-topic p{font-size:14px;color:var(--lhy-dim)}
.iislhhy-topic small{display:inline-block;margin-top:14px;padding:4px 12px;border-radius:999px;background:#e2eefc;color:var(--lhy-main);font-size:12.5px}

/* 分类频道 */
.iislhhy-chans{display:grid;grid-template-columns:repeat(3,1fr);gap:14px}
.iislhhy-chan{background:#fff;border:1px solid var(--lhy-line);border-radius:12px;padding:18px 20px;box-shadow:var(--lhy-shadow)}
.iislhhy-chan strong{display:block;font-size:15.5px;margin-bottom:6px}
.iislhhy-chan strong::before{content:"";display:inline-block;width:6px;height:6px;border-radius:50%;background:var(--lhy-sub);margin-right:8px;vertical-align:middle}
.iislhhy-chan p{font-size:13.5px;color:var(--lhy-dim)}

/* 榜单 */
.iislhhy-rank{display:grid;grid-template-columns:1fr 1fr;gap:0 40px}
.iislhhy-rank li{display:flex;align-items:center;gap:13px;padding:13px 0;border-bottom:1px dashed var(--lhy-line)}
.iislhhy-no{flex:none;width:28px;height:28px;display:grid;place-items:center;border-radius:9px;background:var(--lhy-tint);color:var(--lhy-main);font-size:13px;font-weight:700}
.iislhhy-rank li:nth-child(-n+3) .iislhhy-no{background:var(--lhy-main);color:#fff}
.iislhhy-rank h3{flex:1;font-size:15px;font-weight:600}
.iislhhy-tag{flex:none;font-size:12px;color:var(--lhy-dim);background:#f1f6fd;border:1px solid var(--lhy-line);border-radius:6px;padding:2px 8px}
.iislhhy-heat{flex:none;font-size:12.5px;color:#8595ab}

/* 资讯 */
.iislhhy-news{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.iislhhy-news article{display:flex;align-items:center;gap:14px;padding:12px;background:#fff;border:1px solid var(--lhy-line);border-radius:12px;box-shadow:var(--lhy-shadow);transition:border-color .2s}
.iislhhy-news article:hover{border-color:#c5daf6}
.iislhhy-news img{flex:none;width:96px;height:72px;border-radius:9px;object-fit:cover}
.iislhhy-news h3{font-size:15px}
.iislhhy-news p{font-size:13px;color:var(--lhy-dim);margin-top:4px}
.iislhhy-when{display:inline-block;margin-bottom:5px;padding:1px 8px;border-radius:6px;background:var(--lhy-tint);color:var(--lhy-main);font-size:12px}

/* 数据指标 */
.iislhhy-metrics{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}
.iislhhy-metrics li{background:#fff;border:1px solid var(--lhy-line);border-radius:14px;padding:22px 20px;box-shadow:var(--lhy-shadow)}
.iislhhy-metrics strong{display:block;font-size:18px;color:var(--lhy-main)}
.iislhhy-metrics span{display:block;margin-top:6px;font-size:13.5px;color:var(--lhy-dim)}

/* 一周节奏 */
.iislhhy-week{display:grid;grid-template-columns:repeat(7,1fr);gap:10px}
.iislhhy-week li{background:#fff;border:1px solid var(--lhy-line);border-radius:12px;padding:14px 10px;text-align:center;box-shadow:var(--lhy-shadow)}
.iislhhy-week b{display:block;font-size:14px;color:var(--lhy-main);margin-bottom:6px}
.iislhhy-week span{display:block;font-size:12.5px;color:var(--lhy-dim);line-height:1.55}

/* 口碑 */
.iislhhy-voices{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
.iislhhy-voices blockquote{background:#fff;border:1px solid var(--lhy-line);border-left:3px solid var(--lhy-sub);border-radius:12px;padding:18px 20px;box-shadow:var(--lhy-shadow)}
.iislhhy-voices p{font-size:14px;color:#33445e}
.iislhhy-voices cite{display:block;margin-top:10px;font-size:12.5px;color:#8595ab;font-style:normal}

/* 问答 */
.iislhhy-faq{max-width:820px}
.iislhhy-faq details{background:#fff;border:1px solid var(--lhy-line);border-radius:12px;padding:12px 18px;margin-bottom:10px;box-shadow:var(--lhy-shadow)}
.iislhhy-faq summary{display:flex;align-items:center;justify-content:space-between;gap:12px;min-height:44px;font-size:15.5px;font-weight:600;cursor:pointer;list-style:none}
.iislhhy-faq summary::-webkit-details-marker{display:none}
.iislhhy-faq summary::after{content:"+";color:var(--lhy-sub);font-size:19px;font-weight:400}
.iislhhy-faq details[open] summary::after{content:"–"}
.iislhhy-faq p{margin-top:8px;font-size:14.5px;color:var(--lhy-dim)}

/* 收口 */
.iislhhy-cta{display:flex;align-items:center;justify-content:space-between;flex-wrap:wrap;gap:26px;padding:42px 40px;border-radius:22px;background:linear-gradient(135deg,#123a6b,#2f6cb8);color:#fff;box-shadow:0 22px 44px rgba(18,58,107,.24)}
.iislhhy-cta h2{font-size:clamp(20px,2.2vw,26px)}
.iislhhy-cta p{margin-top:8px;max-width:560px;font-size:14.5px;color:#d5e3f6}
.iislhhy-cta .iislhhy-btn{background:#fff;color:var(--lhy-main);box-shadow:none}
.iislhhy-cta .iislhhy-btn:hover{background:#eaf2fd;color:var(--lhy-main)}

/* 页脚 */
.iislhhy-foot{background:#0f1e33;color:#cfd9e8;padding:46px 0 0;margin-top:0}
.iislhhy-fgrid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:28px}
.iislhhy-foot h3{font-size:14px;color:#fff;margin-bottom:12px;letter-spacing:.06em}
.iislhhy-foot p{font-size:13.5px;color:#a9b9cf}
.iislhhy-foot a{display:block;padding:4px 0;font-size:13.5px;color:#b9c7db;transition:color .2s}
.iislhhy-foot a:hover{color:#fff}
.iislhhy-foot li span{display:block;padding:4px 0;font-size:13.5px;color:#b9c7db}
.iislhhy-copy{display:flex;justify-content:space-between;flex-wrap:wrap;gap:8px;margin-top:32px;padding:16px 0;border-top:1px solid rgba(255,255,255,.12);font-size:13px;color:#93a4bd}

@media(max-width:1024px){
  .iislhhy-hero-grid{grid-template-columns:1fr;gap:30px}
  .iislhhy-hero-copy{transform:none}
  .iislhhy-hero-visual img{transform:rotate(-1deg)}
  .iislhhy-cards,.iislhhy-topics,.iislhhy-chans{grid-template-columns:repeat(2,1fr)}
  .iislhhy-matrix{grid-template-columns:repeat(2,1fr)}
  .iislhhy-metrics{grid-template-columns:repeat(2,1fr)}
  .iislhhy-week{grid-template-columns:repeat(4,1fr)}
  .iislhhy-voices{grid-template-columns:repeat(2,1fr)}
  .iislhhy-news{grid-template-columns:1fr}
  .iislhhy-fgrid{grid-template-columns:1fr 1fr}
}
@media(max-width:768px){
  .iislhhy-sec{padding:44px 0}
  .iislhhy-trio{grid-template-columns:1fr}
  .iislhhy-rank{grid-template-columns:1fr;gap:0}
  .iislhhy-topics,.iislhhy-voices{grid-template-columns:1fr}
  .iislhhy-week{grid-template-columns:repeat(3,1fr)}
  .iislhhy-cta{padding:32px 24px}
  .iislhhy-bar{min-height:62px;gap:12px}
  .iislhhy-nav a{padding:8px 11px;font-size:14px}
}
@media(max-width:520px){
  .iislhhy-wrap{padding:0 16px}
  .iislhhy-brand{font-size:15.5px}
  .iislhhy-hero{padding:36px 0 34px}
  .iislhhy-hero-sub{font-size:15.5px}
  .iislhhy-kpis{gap:18px}
  .iislhhy-cards,.iislhhy-chans,.iislhhy-matrix,.iislhhy-metrics,.iislhhy-week{grid-template-columns:1fr}
  .iislhhy-hero-actions .iislhhy-btn{width:100%}
  .iislhhy-news article{flex-direction:column;align-items:flex-start}
  .iislhhy-news img{width:100%;height:150px}
  .iislhhy-fgrid{grid-template-columns:1fr}
  .iislhhy-copy{font-size:12.5px}
}