/* roulang page: index */
:root{
  --toneA:#2358e6;
  --toneB:#ff8a3c;
  --shell:#f3f6fc;
  --paper:#ffffff;
  --ink:#16203a;
  --ink2:#5f6f8d;
  --rule:#e3eaf7;
  --r1:10px;
  --r2:16px;
  --r3:24px;
  --sh1:0 8px 24px rgba(24,54,120,.07);
  --sh2:0 20px 46px rgba(24,54,120,.14);
  --gap:22px;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;background:var(--shell);color:var(--ink);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,ul,li,form{margin:0;padding:0}
ul{list-style:none}
img{display:block;max-width:100%}
a{color:inherit;text-decoration:none}
button,input{font:inherit}
:focus-visible{outline:3px solid rgba(35,88,230,.45);outline-offset:3px}
section[id]{scroll-margin-top:86px}
.rlnghecg-wrap{width:min(1180px,92%);margin:0 auto}

/* 顶栏 */
.rlnghecg-top{position:sticky;top:0;z-index:50;background:rgba(255,255,255,.94);backdrop-filter:saturate(160%) blur(14px);border-bottom:1px solid var(--rule)}
.rlnghecg-topbar{display:flex;align-items:center;gap:30px;min-height:72px}
.rlnghecg-logo{display:inline-flex;align-items:center;gap:10px;font-size:21px;font-weight:800;color:var(--toneA);letter-spacing:.01em}
.rlnghecg-logo::before{content:"";width:12px;height:26px;border-radius:5px;background:linear-gradient(180deg,var(--toneA),var(--toneB))}
.rlnghecg-nav{display:flex;margin-left:auto;gap:4px;overflow-x:auto;scrollbar-width:none}
.rlnghecg-nav::-webkit-scrollbar{display:none}
.rlnghecg-nav a{display:inline-flex;align-items:center;height:44px;padding:0 14px;border-radius:999px;font-size:15px;color:var(--ink2);white-space:nowrap;transition:color .18s,background .18s}
.rlnghecg-nav a:hover{color:var(--toneA);background:rgba(35,88,230,.08)}

/* 首屏 */
.rlnghecg-hero{position:relative;overflow:hidden;background:#0b1730 url("/assets/images/backpic/back-1.webp") center/cover no-repeat;color:#fff}
.rlnghecg-hero::before{content:"";position:absolute;inset:0;background:linear-gradient(108deg,rgba(9,21,46,.95) 0%,rgba(15,38,89,.86) 52%,rgba(35,88,230,.62) 100%)}
.rlnghecg-hero-grid{position:relative;display:grid;grid-template-columns:1.04fr .96fr;gap:54px;align-items:center;padding:76px 0 86px}
.rlnghecg-eyebrow{display:inline-flex;align-items:center;padding:6px 14px;border-radius:999px;background:rgba(255,255,255,.12);border:1px solid rgba(255,255,255,.2);font-size:13px;letter-spacing:.06em;color:#d9e5ff}
.rlnghecg-hero h1{font-size:46px;line-height:1.22;font-weight:800;margin:20px 0 18px;letter-spacing:-.01em}
.rlnghecg-hero h1 span{display:block;color:#94b8ff;font-size:34px;font-weight:700;margin-top:8px}
.rlnghecg-lede{font-size:15.5px;line-height:1.85;color:#c6d4f0;max-width:35em}
.rlnghecg-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:28px}
.rlnghecg-btn{display:inline-flex;align-items:center;justify-content:center;min-height:48px;padding:0 26px;border:0;border-radius:999px;background:var(--toneA);color:#fff;font-size:15px;font-weight:700;cursor:pointer;transition:transform .2s,box-shadow .2s,background .2s}
.rlnghecg-btn:hover{background:#1a49c9;transform:translateY(-2px);box-shadow:0 12px 26px rgba(35,88,230,.35)}
.rlnghecg-btn--ghost{background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.32);color:#fff}
.rlnghecg-btn--ghost:hover{background:rgba(255,255,255,.18);box-shadow:none}
.rlnghecg-btn--dark{background:#fff;color:#1c3f9e}
.rlnghecg-btn--dark:hover{background:#eaf0ff;color:#1c3f9e;box-shadow:0 12px 26px rgba(4,12,32,.28)}
.rlnghecg-stack{display:grid;grid-template-columns:1fr 1.16fr 1fr;gap:16px;align-items:center}
.rlnghecg-mini,.rlnghecg-main{background:rgba(255,255,255,.1);border:1px solid rgba(255,255,255,.18);border-radius:var(--r2);padding:10px}
.rlnghecg-mini:first-child{transform:translateY(-22px)}
.rlnghecg-mini:last-child{transform:translateY(22px)}
.rlnghecg-main{background:rgba(255,255,255,.16);box-shadow:0 22px 50px rgba(4,12,32,.42)}
.rlnghecg-shot{position:relative;overflow:hidden;border-radius:var(--r1);background:#dbe5f7}
.rlnghecg-shot img{width:100%;height:100%;object-fit:cover}
.rlnghecg-shot--hero{aspect-ratio:3/4}
.rlnghecg-badge{position:absolute;top:10px;left:10px;padding:3px 9px;border-radius:8px;background:rgba(9,21,46,.74);color:#fff;font-size:12px;font-weight:700;letter-spacing:.02em}
.rlnghecg-caption{padding:10px 6px 4px}
.rlnghecg-caption h3{font-size:15px;font-weight:700;color:#fff}
.rlnghecg-caption p{font-size:12.5px;color:#a9bde2;margin-top:4px}

/* 通用板块 */
.rlnghecg-sec{padding:78px 0}
.rlnghecg-sec--alt{background:#fff;border-top:1px solid var(--rule);border-bottom:1px solid var(--rule)}
.rlnghecg-head{max-width:760px;margin-bottom:40px}
.rlnghecg-head h2{position:relative;padding-left:16px;font-size:30px;line-height:1.3;font-weight:800;letter-spacing:-.01em}
.rlnghecg-head h2::before{content:"";position:absolute;left:0;top:3px;bottom:3px;width:5px;border-radius:3px;background:linear-gradient(180deg,var(--toneA),var(--toneB))}
.rlnghecg-head p{margin-top:14px;color:var(--ink2);font-size:15.5px;line-height:1.8}

/* 阅读亮点 */
.rlnghecg-grid4{display:grid;grid-template-columns:repeat(4,1fr);gap:var(--gap)}
.rlnghecg-point{background:var(--paper);border:1px solid var(--rule);border-radius:var(--r3);padding:26px 22px;box-shadow:var(--sh1);transition:transform .22s,box-shadow .22s}
.rlnghecg-point:hover{transform:translateY(-4px);box-shadow:var(--sh2)}
.rlnghecg-num{display:inline-flex;align-items:center;justify-content:center;width:38px;height:38px;border-radius:12px;background:rgba(35,88,230,.1);color:var(--toneA);font-size:14px;font-weight:800;margin-bottom:16px}
.rlnghecg-point h3{font-size:17px;font-weight:700;margin-bottom:8px}
.rlnghecg-point p{font-size:14px;color:var(--ink2);line-height:1.75}

/* 更新时段 */
.rlnghecg-slots{display:grid;grid-template-columns:repeat(4,1fr);gap:var(--gap)}
.rlnghecg-slot{background:var(--paper);border:1px solid var(--rule);border-radius:var(--r2);padding:22px 20px;box-shadow:var(--sh1)}
.rlnghecg-slot-time{display:inline-block;font-size:12.5px;font-weight:700;letter-spacing:.04em;color:#c25c14;background:rgba(255,138,60,.13);padding:4px 11px;border-radius:999px}
.rlnghecg-slot h3{font-size:16px;font-weight:700;margin:14px 0 8px}
.rlnghecg-slot li{font-size:14px;color:var(--ink2);padding:8px 0;border-top:1px dashed var(--rule)}

/* 分类频道 */
.rlnghecg-chips{display:grid;grid-template-columns:repeat(3,1fr);gap:var(--gap)}
.rlnghecg-chips li{background:var(--paper);border:1px solid var(--rule);border-radius:var(--r2);padding:22px;box-shadow:var(--sh1)}
.rlnghecg-chip{display:inline-block;font-size:15.5px;font-weight:700;color:var(--toneA);padding:3px 13px;border-radius:999px;background:rgba(35,88,230,.08)}
.rlnghecg-chips p{margin-top:12px;font-size:14px;color:var(--ink2);line-height:1.75}

/* 排行 */
.rlnghecg-rank{display:grid;grid-template-columns:repeat(2,1fr);gap:14px 26px}
.rlnghecg-rank li{display:flex;align-items:center;gap:14px;background:var(--paper);border:1px solid var(--rule);border-radius:var(--r2);padding:14px 18px;box-shadow:var(--sh1);transition:transform .2s,box-shadow .2s}
.rlnghecg-rank li:hover{transform:translateY(-3px);box-shadow:var(--sh2)}
.rlnghecg-no{flex:0 0 auto;width:30px;height:30px;display:inline-flex;align-items:center;justify-content:center;border-radius:9px;background:rgba(35,88,230,.09);color:var(--toneA);font-size:13.5px;font-weight:800}
.rlnghecg-rank li:nth-child(-n+3) .rlnghecg-no{background:linear-gradient(135deg,var(--toneA),#4d7bff);color:#fff}
.rlnghecg-rank h3{font-size:15.5px;font-weight:700}
.rlnghecg-meta{margin-left:auto;display:flex;flex-wrap:wrap;gap:8px;justify-content:flex-end}
.rlnghecg-tag{display:inline-flex;align-items:center;padding:3px 10px;border-radius:999px;font-size:12px;font-weight:600;background:rgba(35,88,230,.08);color:var(--toneA);white-space:nowrap}
.rlnghecg-tag--warm{background:rgba(255,138,60,.14);color:#c25c14}

/* 卡片 */
.rlnghecg-grid6{display:grid;grid-template-columns:repeat(3,1fr);gap:var(--gap)}
.rlnghecg-card{display:flex;flex-direction:column;background:var(--paper);border:1px solid var(--rule);border-radius:var(--r3);overflow:hidden;box-shadow:var(--sh1);transition:transform .22s,box-shadow .22s,border-color .22s}
.rlnghecg-card:hover{transform:translateY(-5px);box-shadow:var(--sh2);border-color:#c9d8f5}
.rlnghecg-card .rlnghecg-shot{aspect-ratio:4/3;border-radius:0}
.rlnghecg-card .rlnghecg-shot img{transition:transform .5s ease}
.rlnghecg-card:hover .rlnghecg-shot img{transform:scale(1.05)}
.rlnghecg-body{padding:16px 18px 20px;display:flex;flex-direction:column;gap:9px}
.rlnghecg-body h3{font-size:16.5px;font-weight:700}
.rlnghecg-body p{font-size:13.5px;color:var(--ink2);line-height:1.7}
.rlnghecg-tags{display:flex;flex-wrap:wrap;gap:8px;margin-top:auto;padding-top:10px}

/* 专题 */
.rlnghecg-topics{display:grid;grid-template-columns:repeat(3,1fr);gap:var(--gap)}
.rlnghecg-topic{background:linear-gradient(160deg,#ffffff,#f1f6ff);border:1px solid var(--rule);border-radius:var(--r3);padding:28px 24px;box-shadow:var(--sh1);transition:transform .22s,box-shadow .22s}
.rlnghecg-topic:hover{transform:translateY(-4px);box-shadow:var(--sh2)}
.rlnghecg-topic h3{font-size:18px;font-weight:800;margin-bottom:10px}
.rlnghecg-topic p{font-size:14px;color:var(--ink2);line-height:1.78}
.rlnghecg-topic .rlnghecg-tag{margin-top:16px}

/* 创作团队 */
.rlnghecg-creators{display:grid;grid-template-columns:repeat(3,1fr);gap:var(--gap)}
.rlnghecg-creator{display:flex;gap:16px;background:var(--paper);border:1px solid var(--rule);border-radius:var(--r3);padding:16px;box-shadow:var(--sh1);transition:transform .22s,box-shadow .22s}
.rlnghecg-creator:hover{transform:translateY(-4px);box-shadow:var(--sh2)}
.rlnghecg-creator .rlnghecg-shot{flex:0 0 104px;aspect-ratio:1/1;border-radius:14px}
.rlnghecg-creator h3{font-size:16px;font-weight:700;margin-bottom:6px}
.rlnghecg-creator p{font-size:13.5px;color:var(--ink2);line-height:1.7}

/* 读者口碑 */
.rlnghecg-voices{display:grid;grid-template-columns:repeat(3,1fr);gap:var(--gap)}
.rlnghecg-voice{background:var(--paper);border:1px solid var(--rule);border-radius:var(--r3);padding:24px;box-shadow:var(--sh1)}
.rlnghecg-voice p{font-size:14.5px;line-height:1.85}
.rlnghecg-who{margin-top:14px;font-size:13px;color:var(--ink2)}

/* 资讯 */
.rlnghecg-news{display:grid;gap:12px}
.rlnghecg-news li{display:flex;align-items:center;gap:16px;background:var(--paper);border:1px solid var(--rule);border-radius:var(--r2);padding:16px 20px;box-shadow:var(--sh1);transition:transform .2s,box-shadow .2s}
.rlnghecg-news li:hover{transform:translateX(4px);box-shadow:var(--sh2)}
.rlnghecg-when{flex:0 0 auto;font-size:12.5px;font-weight:700;color:var(--toneA);background:rgba(35,88,230,.08);padding:4px 12px;border-radius:999px}
.rlnghecg-news h3{font-size:15.5px;font-weight:600}

/* 问答 */
.rlnghecg-faq{display:grid;grid-template-columns:repeat(2,1fr);gap:18px}
.rlnghecg-faq-item{background:var(--paper);border:1px solid var(--rule);border-radius:var(--r2);padding:22px 24px;box-shadow:var(--sh1)}
.rlnghecg-faq-item h3{font-size:16px;font-weight:700;margin-bottom:10px}
.rlnghecg-faq-item p{font-size:14px;color:var(--ink2);line-height:1.8}

/* 追更提醒 */
.rlnghecg-signup{background:linear-gradient(120deg,#12275a,#2358e6);border-radius:28px;padding:44px;color:#fff;display:grid;grid-template-columns:1.1fr .9fr;gap:36px;align-items:center;box-shadow:var(--sh2)}
.rlnghecg-signup h2{font-size:27px;font-weight:800;line-height:1.35}
.rlnghecg-signup p{margin-top:12px;font-size:14.5px;color:#cfdcf7;line-height:1.8}
.rlnghecg-field{display:flex;gap:12px;flex-wrap:wrap}
.rlnghecg-input{flex:1 1 200px;min-height:48px;border-radius:999px;border:1px solid rgba(255,255,255,.35);background:rgba(255,255,255,.12);color:#fff;padding:0 20px;font-size:14.5px}
.rlnghecg-input::placeholder{color:#b9caea}

/* 页脚 */
.rlnghecg-foot{background:#0d1830;color:#b7c5e0;padding:60px 0 26px}
.rlnghecg-foot-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.1fr;gap:36px}
.rlnghecg-foot-brand .rlnghecg-logo{color:#fff}
.rlnghecg-foot-brand p{margin-top:14px;font-size:13.5px;line-height:1.85;color:#93a6c8}
.rlnghecg-foot-col h3{font-size:14.5px;color:#fff;font-weight:700;margin-bottom:14px}
.rlnghecg-foot-col a{display:block;font-size:13.5px;padding:6px 0;color:#9fb1d1;transition:color .18s}
.rlnghecg-foot-col a:hover{color:#fff}
.rlnghecg-foot-col p{font-size:13.5px;line-height:1.85;color:#93a6c8}
.rlnghecg-copyright{margin-top:40px;padding-top:20px;border-top:1px solid rgba(255,255,255,.1);font-size:13px;color:#8296b8;text-align:center}

@media (max-width:1024px){
  .rlnghecg-hero-grid{grid-template-columns:1fr;gap:40px;padding:60px 0 70px}
  .rlnghecg-stack{max-width:640px}
  .rlnghecg-hero h1{font-size:40px}
  .rlnghecg-grid4{grid-template-columns:repeat(2,1fr)}
  .rlnghecg-slots{grid-template-columns:repeat(2,1fr)}
  .rlnghecg-grid6{grid-template-columns:repeat(2,1fr)}
  .rlnghecg-topics{grid-template-columns:1fr}
  .rlnghecg-creators{grid-template-columns:1fr}
  .rlnghecg-voices{grid-template-columns:1fr}
  .rlnghecg-chips{grid-template-columns:repeat(2,1fr)}
  .rlnghecg-signup{grid-template-columns:1fr;padding:34px}
  .rlnghecg-foot-grid{grid-template-columns:1fr 1fr}
}
@media (max-width:768px){
  .rlnghecg-sec{padding:56px 0}
  .rlnghecg-head h2{font-size:24px}
  .rlnghecg-hero h1{font-size:32px}
  .rlnghecg-hero h1 span{font-size:26px}
  .rlnghecg-topbar{gap:16px;min-height:64px}
  .rlnghecg-logo{font-size:18px}
  .rlnghecg-nav a{font-size:14px;padding:0 12px}
  .rlnghecg-rank{grid-template-columns:1fr}
  .rlnghecg-faq{grid-template-columns:1fr}
}
@media (max-width:520px){
  body{font-size:15px}
  .rlnghecg-wrap{width:94%}
  .rlnghecg-grid4,.rlnghecg-slots,.rlnghecg-chips,.rlnghecg-grid6{grid-template-columns:1fr}
  .rlnghecg-stack{grid-template-columns:1fr 1fr;gap:12px}
  .rlnghecg-stack .rlnghecg-main{grid-column:1 / -1;order:-1}
  .rlnghecg-mini:first-child,.rlnghecg-mini:last-child{transform:none}
  .rlnghecg-hero-grid{padding:44px 0 54px}
  .rlnghecg-hero h1{font-size:28px}
  .rlnghecg-hero h1 span{font-size:22px}
  .rlnghecg-actions{gap:10px}
  .rlnghecg-btn{width:100%}
  .rlnghecg-signup{padding:26px;border-radius:20px}
  .rlnghecg-signup h2{font-size:22px}
  .rlnghecg-creator .rlnghecg-shot{flex:0 0 84px}
  .rlnghecg-foot-grid{grid-template-columns:1fr;gap:26px}
}