/* roulang page: index */
:root{
  --paper:#F7F4EE;
  --paper-2:#F2EEE6;
  --card:#FFFDF9;
  --ink:#1A1D1B;
  --muted:#5C5F5B;
  --green:#1E3A34;
  --green-d:#162C28;
  --copper:#C08A4E;
  --line:#E3DED4;
  --good:#4F7A5E;
  --r:4px;
  --r-sm:2px;
  --sh:0 1px 2px rgba(30,58,52,.06);
  --ease:180ms ease;
  --serif:"Noto Serif SC","Source Han Serif SC","Songti SC",Georgia,serif;
  --sans:"Noto Sans SC","PingFang SC","Hiragino Sans GB",system-ui,-apple-system,sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
body{margin:0;background:var(--paper);color:var(--ink);font:400 16px/1.8 var(--sans);-webkit-font-smoothing:antialiased}
h1,h2,h3,h4{font-family:var(--serif);font-weight:600;line-height:1.35;margin:0}
h1{font-size:40px;line-height:1.25}
h2{font-size:28px}
h3{font-size:20px;line-height:1.4}
p{margin:0}
ul,ol{margin:0;padding:0;list-style:none}
img{display:block;max-width:100%;height:auto}
a{color:var(--green);text-decoration:none;transition:color var(--ease),background-color var(--ease),border-color var(--ease)}
button,input,select,textarea{font:inherit;color:inherit}
.hj-container{max-width:1200px;margin:0 auto;padding:0 24px}
.hj-sec{padding:96px 0}
.hj-sec--alt{background:var(--card)}
.hj-sec__head{max-width:760px;margin-bottom:40px}
.hj-sec__head h2{margin-bottom:14px}
.hj-sec__head p{color:var(--muted);font-size:15.5px}

/* header */
.hj-header{position:sticky;top:0;z-index:50;background:rgba(247,244,238,.94);backdrop-filter:blur(4px);border-bottom:1px solid var(--line)}
.hj-header__inner{display:flex;align-items:center;gap:32px;height:72px}
.hj-brand{display:flex;align-items:center;gap:12px;flex:0 0 auto}
.hj-brand__mark{display:flex;align-items:center;justify-content:center;width:36px;height:36px;background:var(--green);color:var(--paper);font-family:var(--serif);font-size:20px;border-radius:var(--r-sm)}
.hj-brand__text{font-family:var(--serif);font-size:17px;color:var(--ink);letter-spacing:.02em;white-space:nowrap}
.hj-nav{display:flex;align-items:center;gap:26px;margin-left:8px}
.hj-nav a{font-size:15px;color:var(--muted);padding:6px 0;border-bottom:2px solid transparent}
.hj-nav a:hover{color:var(--green);border-bottom-color:var(--copper)}
.hj-header__side{display:flex;align-items:center;gap:12px;margin-left:auto}
.hj-search{display:inline-flex;align-items:center;justify-content:center;width:44px;height:44px;border:0;background:transparent;color:var(--muted);border-radius:var(--r-sm);transition:color var(--ease),background-color var(--ease)}
.hj-search:hover{color:var(--green);background:var(--paper-2)}
.hj-search svg{width:18px;height:18px;fill:none;stroke:currentColor;stroke-width:1.6}
.hj-burger{display:none;width:44px;height:44px;border:0;background:transparent;padding:12px 10px;flex-direction:column;justify-content:space-between}
.hj-burger span{display:block;height:1px;background:var(--green)}
.hj-drawer{display:none}
.hj-drawer.is-open{display:block;position:fixed;top:72px;left:0;right:0;z-index:49;background:var(--card);border-bottom:1px solid var(--line);padding:16px 24px 28px}
.hj-drawer ul li{border-bottom:1px solid var(--line)}
.hj-drawer ul a{display:block;padding:16px 0;font-size:16px;color:var(--ink)}
.hj-drawer .hj-btn{margin-top:20px;width:100%}

/* buttons */
.hj-btn{display:inline-flex;align-items:center;justify-content:center;min-height:44px;padding:0 26px;border:1px solid var(--green);border-radius:var(--r-sm);background:var(--green);color:var(--paper);font-size:15px;transition:background-color var(--ease),border-color var(--ease),color var(--ease),transform var(--ease)}
.hj-btn:hover{background:var(--green-d);border-color:var(--green-d);color:var(--paper);transform:translateY(1px)}
.hj-btn--ghost{background:transparent;color:var(--green)}
.hj-btn--ghost:hover{background:var(--paper-2);color:var(--green);border-color:var(--green)}
.hj-btn--sm{min-height:38px;padding:0 18px;font-size:14px}

/* hero */
.hj-hero{position:relative;padding:72px 0 96px;overflow:hidden}
.hj-hero::before{content:"";position:absolute;inset:0;background-image:linear-gradient(var(--line) 1px,transparent 1px),linear-gradient(90deg,var(--line) 1px,transparent 1px);background-size:52px 52px;opacity:.4;pointer-events:none}
.hj-hero__grid{position:relative;display:grid;grid-template-columns:1.05fr .95fr;gap:64px;align-items:center}
.hj-eyebrow{font-size:13px;letter-spacing:.08em;color:var(--copper);margin-bottom:20px}
.hj-hero__title{margin-bottom:18px}
.hj-hl{font-style:normal;color:var(--copper);border-bottom:2px solid var(--copper);padding-bottom:2px}
.hj-hero__sub{font-size:18px;font-weight:600;color:var(--green);margin-bottom:16px}
.hj-hero__desc{color:var(--muted);max-width:56ch;margin-bottom:32px}
.hj-hero__actions{display:flex;flex-wrap:wrap;gap:12px;margin-bottom:28px}
.hj-hero__tags{display:flex;flex-wrap:wrap;gap:8px 22px;font-size:13px;color:var(--muted)}
.hj-hero__tags li::before{content:"—";color:var(--copper);margin-right:7px}
.hj-hero__media{position:relative;margin:0;border:1px solid var(--line);border-radius:var(--r);overflow:hidden;background:var(--card);box-shadow:var(--sh)}
.hj-hero__media img{width:100%;aspect-ratio:4/3;object-fit:cover}
.hj-hero__live{position:absolute;left:16px;bottom:16px;display:flex;gap:22px;padding:9px 16px;background:rgba(247,244,238,.95);border:1px solid var(--line);border-radius:var(--r-sm);font-size:13px;color:var(--muted)}
.hj-hero__live b{font-family:var(--serif);font-size:16px;color:var(--green);font-variant-numeric:tabular-nums;margin-right:4px}

/* metrics */
.hj-metrics{padding:56px 0;background:var(--card);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.hj-metrics__row{display:grid;grid-template-columns:repeat(6,1fr);margin-top:28px}
.hj-metrics__row li{padding:0 20px;border-left:1px solid var(--line)}
.hj-metrics__row li:first-child{border-left:0;padding-left:0}
.hj-metrics__num{display:block;font-family:var(--serif);font-size:30px;line-height:1.2;color:var(--green);font-variant-numeric:tabular-nums}
.hj-metrics__label{display:block;margin-top:6px;font-size:12px;letter-spacing:.08em;color:var(--muted)}

/* boards */
.hj-boards{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.hj-board{padding:28px 24px;background:var(--card);border:1px solid var(--line);border-radius:var(--r);transition:border-color var(--ease),transform var(--ease)}
.hj-board:hover{border-color:var(--copper);transform:translateY(-2px)}
.hj-board--wide{grid-column:span 2}
.hj-board__icon{display:inline-flex;align-items:center;justify-content:center;width:44px;height:44px;margin-bottom:18px;border:1px solid var(--copper);border-radius:var(--r-sm);color:var(--copper);font-family:var(--serif);font-size:20px}
.hj-board h3{font-size:18px;margin-bottom:10px}
.hj-board p{color:var(--muted);font-size:15px}
.hj-board__meta{margin-top:18px;padding-top:14px;border-top:1px solid var(--line);font-size:12px;color:var(--muted)}

/* top10 */
.hj-top10__grid{display:grid;grid-template-columns:3fr 9fr;gap:48px;align-items:start}
.hj-top10__list li{display:grid;grid-template-columns:48px 1fr auto auto;align-items:center;gap:16px;padding:16px 12px;border-bottom:1px solid var(--line);transition:background-color var(--ease)}
.hj-top10__list li:first-child{border-top:1px solid var(--line)}
.hj-top10__list li:hover{background:var(--paper-2)}
.hj-top10__no{font-family:var(--serif);font-size:20px;color:var(--copper);font-variant-numeric:tabular-nums}
.hj-top10__title{color:var(--ink);font-size:15.5px}
.hj-top10__title:hover{color:var(--copper)}
.hj-badge{display:inline-block;padding:2px 8px;border:1px solid var(--line);border-radius:var(--r-sm);font-size:12px;color:var(--muted);white-space:nowrap}
.hj-top10__rep{font-size:12px;color:var(--muted);white-space:nowrap}

/* feed */
.hj-feed{display:grid;grid-template-columns:1fr 1fr;gap:24px}
.hj-feed li{display:grid;grid-template-columns:160px 1fr;gap:20px;padding:20px;background:var(--card);border:1px solid var(--line);border-radius:var(--r);transition:border-color var(--ease)}
.hj-feed li:hover{border-color:var(--copper)}
.hj-feed img{width:160px;aspect-ratio:4/3;object-fit:cover;border-radius:var(--r-sm)}
.hj-feed__title{display:block;margin-bottom:8px;font-family:var(--serif);font-size:17px;font-weight:600;color:var(--ink);line-height:1.45}
.hj-feed__title:hover{color:var(--copper)}
.hj-feed__excerpt{font-size:14px;color:var(--muted);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.hj-feed__meta{margin-top:12px;font-size:12px;color:var(--muted)}

/* compare */
.hj-table{width:100%;border-collapse:collapse;margin-top:8px}
.hj-table th,.hj-table td{padding:18px 16px;text-align:left;font-size:15px;vertical-align:top}
.hj-table thead th{padding-bottom:14px;border-bottom:1px solid var(--green);font-family:var(--serif);font-size:16px;color:var(--green)}
.hj-table tbody tr{border-bottom:1px solid var(--line)}
.hj-table tbody th{font-weight:500;color:var(--ink);white-space:nowrap}
.hj-table tbody td{color:var(--muted)}
.hj-check{color:var(--copper);font-weight:700;margin-right:6px}

/* topics */
.hj-topics{display:grid;grid-template-columns:1fr 1fr;gap:24px;padding-bottom:32px}
.hj-topic{padding:32px 28px;background:var(--card);border:1px solid var(--line);border-left:2px solid var(--copper);border-radius:var(--r)}
.hj-topic:nth-child(even){transform:translateY(32px)}
.hj-topic__no{display:block;font-family:var(--serif);font-size:13px;letter-spacing:.14em;color:var(--copper);margin-bottom:14px}
.hj-topic h3{font-size:19px;margin-bottom:12px}
.hj-topic p{font-size:15px;color:var(--muted)}
.hj-topic__count{display:block;margin-top:18px;font-size:12px;color:var(--muted);letter-spacing:.04em}

/* milestones */
.hj-timeline{position:relative;display:grid;grid-template-columns:repeat(5,1fr);margin-top:8px}
.hj-timeline::before{content:"";position:absolute;left:0;right:0;top:6px;height:1px;background:var(--line)}
.hj-timeline li{position:relative;padding:32px 28px 0 0}
.hj-timeline li::before{content:"";position:absolute;left:0;top:0;width:13px;height:13px;border-radius:50%;background:var(--copper)}
.hj-timeline__year{display:block;font-family:var(--serif);font-size:26px;color:var(--green);margin-bottom:8px;font-variant-numeric:tabular-nums}
.hj-timeline li p{font-size:14.5px;color:var(--muted)}

/* news */
.hj-news{display:grid;grid-template-columns:repeat(3,1fr);gap:28px}
.hj-news li{background:var(--card);border:1px solid var(--line);border-radius:var(--r);overflow:hidden;transition:border-color var(--ease)}
.hj-news li:hover{border-color:var(--copper)}
.hj-news img{width:100%;aspect-ratio:16/10;object-fit:cover}
.hj-news__body{padding:18px 20px 20px}
.hj-news__title{display:block;font-family:var(--serif);font-size:16.5px;font-weight:600;color:var(--ink);line-height:1.45;margin-bottom:12px}
.hj-news__title:hover{color:var(--copper)}
.hj-news__meta{font-size:12px;color:var(--muted)}

/* hosts */
.hj-hosts{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.hj-host{display:flex;gap:16px;padding:22px 20px;background:var(--card);border:1px solid var(--line);border-radius:var(--r)}
.hj-host__avatar{flex:0 0 56px;width:56px;height:56px;display:flex;align-items:center;justify-content:center;border-radius:50%;background:var(--paper-2);border:1px solid var(--line);font-family:var(--serif);font-size:22px;color:var(--green)}
.hj-host h3{font-size:17px;margin-bottom:4px}
.hj-host__board{font-size:12px;color:var(--copper);letter-spacing:.04em}
.hj-host p{font-size:14px;color:var(--muted);margin-top:8px}
.hj-host__fans{display:block;margin-top:10px;font-size:12px;color:var(--muted)}

/* trust */
.hj-trust__list{padding-left:36px;border-left:1px solid var(--line)}
.hj-trust__list li{display:grid;grid-template-columns:72px 1fr;gap:20px;padding:26px 0;border-bottom:1px solid var(--line)}
.hj-trust__list li:first-child{padding-top:0}
.hj-trust__no{font-family:var(--serif);font-size:28px;color:var(--copper);line-height:1.2;font-variant-numeric:tabular-nums}
.hj-trust__list h3{font-size:18px;margin-bottom:8px}
.hj-trust__list p{font-size:15px;color:var(--muted)}

/* quick */
.hj-quick__list{border-top:1px solid var(--line)}
.hj-quick__list li{display:grid;grid-template-columns:1fr auto;align-items:center;gap:24px;padding:22px 8px;border-bottom:1px solid var(--line);transition:background-color var(--ease)}
.hj-quick__list li:hover{background:var(--paper-2)}
.hj-quick__list b{display:block;font-size:16px;color:var(--ink);margin-bottom:4px}
.hj-quick__list span{font-size:14.5px;color:var(--muted)}
.hj-quick__arrow{color:var(--copper);font-size:18px}

/* faq */
.hj-faq{max-width:900px}
.hj-faq details{border-bottom:1px solid var(--line)}
.hj-faq summary{position:relative;padding:22px 44px 22px 0;cursor:pointer;list-style:none;font-family:var(--serif);font-size:18px;color:var(--ink);transition:color var(--ease)}
.hj-faq summary::-webkit-details-marker{display:none}
.hj-faq summary:hover{color:var(--copper)}
.hj-faq summary::after{content:"+";position:absolute;right:10px;top:20px;font-size:22px;line-height:1;color:var(--copper)}
.hj-faq details[open] summary::after{content:"−"}
.hj-faq summary:focus-visible{outline:1px solid var(--copper);outline-offset:2px}
.hj-faq details p{padding:0 44px 24px 0;font-size:15px;color:var(--muted)}

/* join */
.hj-join__grid{display:grid;grid-template-columns:4fr 8fr;gap:64px;align-items:start}
.hj-join__aside h2{margin-bottom:16px}
.hj-join__aside p{color:var(--muted);font-size:15px;margin-bottom:20px}
.hj-join__points li{position:relative;padding-left:22px;margin-bottom:10px;font-size:14.5px;color:var(--muted)}
.hj-join__points li::before{content:"✓";position:absolute;left:0;color:var(--copper)}
.hj-form{background:var(--card);border:1px solid var(--line);border-radius:var(--r);padding:32px}
.hj-form__row{margin-bottom:20px}
.hj-form__row--half{display:grid;grid-template-columns:1fr 1fr;gap:20px}
.hj-form label{display:block;font-size:13px;letter-spacing:.04em;color:var(--muted);margin-bottom:8px}
.hj-form input,.hj-form select,.hj-form textarea{width:100%;padding:12px 14px;border:1px solid var(--line);border-radius:var(--r-sm);background:var(--paper);color:var(--ink);font-size:15px;transition:border-color var(--ease)}
.hj-form input:focus,.hj-form select:focus,.hj-form textarea:focus{outline:none;border-color:var(--copper)}
.hj-form textarea{min-height:120px;resize:vertical}
.hj-form__check{display:flex;align-items:flex-start;gap:10px;font-size:14px;color:var(--muted);margin-bottom:24px}
.hj-form__check input{width:auto;margin-top:4px;accent-color:var(--copper)}
.hj-form .hj-btn{width:100%}

/* footer */
.hj-footer{background:var(--green-d);color:#E8E4DA;padding:72px 0 0}
.hj-footer a{color:#E8E4DA}
.hj-footer a:hover{color:var(--copper)}
.hj-footer__grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.3fr;gap:40px}
.hj-footer__brand{display:flex;align-items:center;gap:12px;margin-bottom:18px}
.hj-footer__brand .hj-brand__mark{background:var(--copper);color:var(--green-d)}
.hj-footer__brand span:last-child{font-family:var(--serif);font-size:17px}
.hj-footer__desc{font-size:14px;color:rgba(232,228,218,.75);max-width:34ch}
.hj-footer h4{font-size:15px;color:#fff;letter-spacing:.04em;margin-bottom:16px}
.hj-footer ul li{margin-bottom:10px;font-size:14px}
.hj-footer p{font-size:14px;color:rgba(232,228,218,.75)}
.hj-footer__form{display:flex;gap:8px;margin-top:16px}
.hj-footer__form input{flex:1;min-width:0;padding:10px 12px;border:1px solid rgba(247,244,238,.25);border-radius:var(--r-sm);background:transparent;color:#F7F4EE;font-size:14px}
.hj-footer__form input::placeholder{color:rgba(232,228,218,.5)}
.hj-footer__form input:focus{outline:none;border-color:var(--copper)}
.hj-footer__form button{flex:0 0 auto;background:var(--copper);border-color:var(--copper);color:var(--green-d)}
.hj-footer__form button:hover{background:#a9763f;border-color:#a9763f;color:var(--green-d)}
.hj-footer__bottom{display:flex;flex-wrap:wrap;justify-content:space-between;gap:12px;margin-top:56px;padding:24px 0;border-top:1px solid rgba(247,244,238,.14);font-size:13px;color:rgba(232,228,218,.6)}

@media (max-width:1024px){
  .hj-nav{display:none}
  .hj-burger{display:flex}
  .hj-hero__grid{grid-template-columns:1fr;gap:40px}
  .hj-hero__media{order:-1}
  .hj-boards{grid-template-columns:repeat(2,1fr)}
  .hj-board--wide{grid-column:span 2}
  .hj-top10__grid{grid-template-columns:1fr;gap:32px}
  .hj-feed{grid-template-columns:1fr}
  .hj-news{grid-template-columns:repeat(2,1fr)}
  .hj-hosts{grid-template-columns:repeat(2,1fr)}
  .hj-timeline{grid-template-columns:1fr;gap:28px}
  .hj-timeline::before{left:6px;right:auto;top:0;bottom:0;width:1px;height:auto}
  .hj-timeline li{padding:0 0 0 36px}
  .hj-timeline li::before{top:4px}
  .hj-join__grid{grid-template-columns:1fr;gap:40px}
  .hj-footer__grid{grid-template-columns:1fr 1fr}
  .hj-metrics__row{grid-template-columns:repeat(3,1fr);row-gap:28px}
  .hj-metrics__row li:nth-child(3n+1){border-left:0;padding-left:0}
  .hj-metrics__row li:nth-child(n+4){padding-top:20px;border-top:1px solid var(--line)}
}
@media (max-width:768px){
  .hj-sec{padding:56px 0}
  .hj-hero{padding:40px 0 56px}
  h1{font-size:28px;line-height:1.3}
  h2{font-size:23px}
  .hj-hero__media img{aspect-ratio:1/1}
  .hj-boards{grid-template-columns:1fr}
  .hj-board--wide{grid-column:span 1}
  .hj-feed li{grid-template-columns:1fr}
  .hj-feed img{width:100%;aspect-ratio:16/10}
  .hj-topics{grid-template-columns:1fr;padding-bottom:0}
  .hj-topic:nth-child(even){transform:none}
  .hj-news{grid-template-columns:1fr}
  .hj-hosts{grid-template-columns:1fr}
  .hj-table thead th,.hj-table td,.hj-table tbody th{padding:14px 10px;font-size:14px}
  .hj-trust__list{padding-left:20px}
  .hj-trust__list li{grid-template-columns:1fr;gap:6px}
  .hj-form{padding:24px}
  .hj-form__row--half{grid-template-columns:1fr;gap:0}
  .hj-footer__grid{grid-template-columns:1fr;gap:32px}
  .hj-metrics__row{grid-template-columns:repeat(2,1fr)}
  .hj-metrics__row li:nth-child(3n+1){border-left:1px solid var(--line);padding-left:20px}
  .hj-metrics__row li:nth-child(2n+1){border-left:0;padding-left:0}
  .hj-metrics__num{font-size:26px}
}
@media (max-width:520px){
  .hj-container{padding:0 16px}
  .hj-header__inner{height:64px;gap:16px}
  .hj-drawer.is-open{top:64px}
  .hj-brand__text{font-size:15px}
  .hj-header__side .hj-btn{display:none}
  .hj-hero__live{left:10px;bottom:10px;gap:14px;padding:7px 12px;font-size:12px}
  .hj-top10__list li{grid-template-columns:36px 1fr;gap:8px 12px;padding:14px 4px}
  .hj-top10__no{font-size:17px}
  .hj-badge{justify-self:start}
  .hj-top10__rep{grid-column:2}
  .hj-hero__actions .hj-btn{width:100%}
  .hj-footer__form{flex-direction:column}
}

/* roulang: framework shim */
/* 覆盖 Bootstrap 等对 a/btn 的全局默认，避免导航出现下划线/蓝链 */
.site-header a,.site-header a:hover,.navbar a,.navbar a:hover,.nav-links a,.nav-links a:hover,header nav a,header nav a:hover{text-decoration:none}
.site-header .btn,.navbar .btn,.nav-cta{text-decoration:none}