/* roulang page: index */
:root{
  --bg:#F5F1E8;
  --card:#FFFFFF;
  --ink:#10231F;
  --muted:#65736E;
  --green:#0B3B34;
  --orange:#FF5A36;
  --orange-d:#E64A28;
  --brass:#C7A24A;
  --line:#DED7C8;
  --up:#1D8A70;
  --down:#D94A3D;
  --soft:#FBF8F1;
  --r:12px;
  --sh:0 8px 24px rgba(11,59,52,.06);
}
*,*::before,*::after{box-sizing:border-box}
body{margin:0;background:var(--bg);color:var(--ink);font-family:"Noto Sans SC","PingFang SC","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;font-size:16px;line-height:1.72;-webkit-font-smoothing:antialiased}
img{display:block;max-width:100%}
a{color:inherit;text-decoration:none}
button{font:inherit;border:0;background:none;cursor:pointer}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4,p{margin:0}
.wrap{max-width:1200px;margin:0 auto;padding:0 24px}
.num,.score,b,time{font-variant-numeric:tabular-nums}
.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap;border:0}
:focus-visible{outline:3px solid rgba(255,90,54,.45);outline-offset:2px;border-radius:4px}
@media(prefers-reduced-motion:reduce){*{animation:none!important;transition:none!important}}

/* header */
.site-head{position:sticky;top:0;z-index:80;background:var(--bg);border-bottom:1px solid var(--line)}
.head-in{display:flex;align-items:center;gap:18px;height:72px}
.brand{display:flex;align-items:center;gap:10px;flex:none}
.logo{position:relative;width:40px;height:40px;border-radius:8px;background:var(--green);color:#F5F1E8;font-size:14px;font-weight:800;letter-spacing:-1px;display:flex;align-items:center;justify-content:center}
.logo i{position:absolute;top:-3px;right:-3px;width:10px;height:10px;border-radius:50%;background:var(--orange);box-shadow:0 0 0 3px var(--bg)}
.brand-name{font-weight:800;font-size:16px;letter-spacing:.2px}
.nav{display:flex;align-items:center;gap:22px;margin-left:auto}
.nav a{font-size:15px;color:var(--muted);padding:6px 0;border-bottom:2px solid transparent;transition:color .18s ease,border-color .18s ease}
.nav a:hover{color:var(--ink);border-bottom-color:var(--orange)}
.nav-close{display:none}
.head-right{display:flex;align-items:center;gap:12px;margin-left:12px}
.live-tag{display:inline-flex;align-items:center;gap:6px;font-size:12px;font-weight:700;letter-spacing:.06em;color:var(--orange);background:rgba(255,90,54,.1);border:1px solid rgba(255,90,54,.3);padding:3px 9px;border-radius:999px}
.pulse{width:7px;height:7px;border-radius:50%;background:var(--orange);animation:pulse 1.6s ease-in-out infinite}
@keyframes pulse{0%,100%{opacity:1;transform:scale(1)}50%{opacity:.4;transform:scale(.75)}}
.burger{display:none;width:44px;height:44px;border:1px solid var(--line);border-radius:8px;color:var(--green);font-size:20px;line-height:1;align-items:center;justify-content:center}

/* hero */
.hero{position:relative;overflow:hidden;padding:64px 0 72px;background-image:linear-gradient(to bottom,rgba(11,59,52,.05) 1px,transparent 1px);background-size:100% 44px}
.hero::after{content:"";position:absolute;inset:0;background:url(/assets/images/18b70f82d587a8c1.jpg) center/cover no-repeat;opacity:.05;pointer-events:none}
.hero>.wrap{position:relative;z-index:1}
.hero-grid{display:grid;grid-template-columns:repeat(12,1fr);gap:32px;align-items:start}
.hero-copy{grid-column:span 7}
.term{grid-column:span 5}
.eyebrow{display:inline-flex;align-items:center;gap:8px;font-size:13px;font-weight:600;color:var(--green);background:#fff;border:1px solid var(--line);border-radius:999px;padding:5px 12px}
h1{font-size:clamp(32px,4.4vw,54px);line-height:1.16;font-weight:800;letter-spacing:-.5px;margin:16px 0 12px}
h1 .hl{background-image:linear-gradient(180deg,transparent 64%,rgba(255,90,54,.32) 64%)}
.hero-sub{font-size:clamp(17px,2vw,20px);font-weight:600;color:var(--green)}
.hero-p{color:var(--muted);font-size:15px;margin-top:12px;max-width:560px}
.hero-btns{display:flex;flex-wrap:wrap;gap:12px;margin-top:26px}
.btn{display:inline-flex;align-items:center;justify-content:center;min-height:46px;padding:0 22px;border-radius:8px;font-weight:600;font-size:15px;border:1px solid transparent;transition:transform .18s ease,background .18s ease,color .18s ease}
.btn-main{background:var(--orange);color:#fff}
.btn-main:hover{background:var(--orange-d);transform:translateY(-1px)}
.btn-ghost{background:transparent;color:var(--green);border-color:var(--green)}
.btn-ghost:hover{background:var(--green);color:#F5F1E8}
.btn-light{background:#F5F1E8;color:var(--green)}
.btn-light:hover{background:#fff;transform:translateY(-1px)}
.hero-facts{display:flex;flex-wrap:wrap;gap:30px;margin-top:30px}
.hero-facts b{display:block;font-size:20px;color:var(--green);line-height:1.2}
.hero-facts span{font-size:12px;color:var(--muted)}

/* terminal */
.term{background:var(--card);border:1px solid var(--line);border-radius:var(--r);box-shadow:var(--sh);overflow:hidden}
.term-head{display:flex;align-items:center;justify-content:space-between;gap:10px;padding:14px 16px;border-bottom:1px solid var(--line);font-size:14px;font-weight:700}
.term-body{padding:4px 16px 10px}
.trow{display:flex;align-items:center;gap:12px;padding:11px 0;border-bottom:1px dashed var(--line);font-size:14px}
.trow:nth-child(4){border-bottom:0}
.tname{font-weight:600}
.tval{margin-left:auto;font-weight:700;font-variant-numeric:tabular-nums}
.tval.up{color:var(--up)}
.tval.down{color:var(--down)}
.tstat{font-size:12px;color:var(--muted);min-width:42px;text-align:right}
.spark{width:100%;height:58px;display:block;margin:6px 0 10px}
.term-note{padding:0 16px 12px;font-size:12px;color:var(--muted)}
.term-shot{width:100%;aspect-ratio:3/2;object-fit:cover;border-top:1px solid var(--line)}

/* sections */
.sec{padding:80px 0}
.sec-band{background:var(--soft)}
.sec-head{max-width:760px;margin-bottom:28px}
.sec-head h2{font-size:clamp(24px,3vw,32px);line-height:1.28;font-weight:800;letter-spacing:-.3px}
.sec-head p{color:var(--muted);font-size:15px;margin-top:10px}
.kicker{display:inline-block;font-size:12px;font-weight:700;letter-spacing:.12em;color:var(--brass);margin-bottom:8px}

/* pain */
.pain li{display:grid;grid-template-columns:88px 1fr;gap:20px;padding:22px 0;border-top:1px solid var(--line);align-items:start}
.pain li:last-child{border-bottom:1px solid var(--line)}
.pain .pn{font-size:28px;font-weight:800;color:#D9D2C1;line-height:1.2}
.pain h3{font-size:18px;margin-bottom:4px}
.pain p{color:var(--muted);font-size:15px;max-width:760px}

/* solve */
.solve{display:grid;grid-template-columns:1.1fr .9fr;gap:40px;align-items:center}
.solve li{display:flex;gap:14px;padding:16px 0;border-bottom:1px solid var(--line)}
.solve .sn{flex:none;width:28px;height:28px;border-radius:50%;border:1px solid var(--green);color:var(--green);font-size:13px;font-weight:700;display:flex;align-items:center;justify-content:center}
.solve h3{font-size:17px;margin-bottom:3px}
.solve p{color:var(--muted);font-size:14px}
.console{background:var(--card);border:1px solid var(--line);border-radius:var(--r);box-shadow:var(--sh);padding:18px}
.console-top{display:flex;justify-content:space-between;align-items:center;font-size:13px;font-weight:700;padding-bottom:12px;border-bottom:1px solid var(--line)}
.bar{display:flex;align-items:center;gap:10px;padding:10px 0;font-size:13px;border-bottom:1px dashed var(--line)}
.bar:last-child{border-bottom:0}
.bar i{display:block;height:6px;border-radius:3px;background:var(--up);width:var(--w,60%)}
.bar span{min-width:78px;color:var(--muted)}
.bar b{margin-left:auto;font-variant-numeric:tabular-nums}

/* channel cards */
.ch-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.ch-card{display:flex;flex-direction:column;background:var(--card);border:1px solid var(--line);border-radius:var(--r);overflow:hidden;transition:transform .18s ease,box-shadow .18s ease,border-color .18s ease}
.ch-card:hover{transform:translateY(-4px);border-color:var(--orange);box-shadow:0 12px 28px rgba(11,59,52,.1)}
.ch-thumb{position:relative;aspect-ratio:16/9;overflow:hidden;background:#E7E1D4}
.ch-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .18s ease}
.ch-card:hover .ch-thumb img{transform:scale(1.03)}
.badge{position:absolute;top:10px;left:10px;display:inline-flex;align-items:center;gap:5px;font-size:12px;padding:3px 8px;border-radius:4px;background:rgba(11,59,52,.9);color:#F5F1E8}
.badge.live{background:var(--orange)}
.ch-body{padding:14px;display:flex;flex-direction:column;gap:8px;flex:1}
.ch-body h3{font-size:16px;line-height:1.45;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;min-height:46px}
.ch-meta{display:flex;align-items:center;justify-content:space-between;gap:8px;margin-top:auto;font-size:13px;color:var(--muted)}
.score{color:var(--brass);font-weight:700}

/* hot */
.hot-grid{display:grid;grid-template-columns:1fr 1fr;gap:20px}
.hot-card{display:grid;grid-template-columns:40% 1fr;background:var(--card);border:1px solid var(--line);border-radius:var(--r);overflow:hidden;transition:transform .18s ease,border-color .18s ease,box-shadow .18s ease}
.hot-card:hover{transform:translateY(-4px);border-color:var(--orange);box-shadow:0 12px 28px rgba(11,59,52,.1)}
.hot-thumb{position:relative;overflow:hidden;background:#E7E1D4;min-height:132px}
.hot-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .18s ease}
.hot-card:hover .hot-thumb img{transform:scale(1.03)}
.hot-body{padding:16px}
.hot-body h3{font-size:16px;line-height:1.4;margin-bottom:6px}
.hot-body p{font-size:13px;color:var(--muted);margin-bottom:10px}
.hot-meta{display:flex;align-items:center;justify-content:space-between;font-size:13px;color:var(--muted)}

/* steps */
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:0;border-top:2px solid var(--line)}
.step{padding:24px 22px 0;border-left:1px dashed var(--line)}
.step:first-child{border-left:0;padding-left:0}
.step .sn{font-size:30px;font-weight:800;color:var(--brass);line-height:1}
.step h3{font-size:17px;margin:10px 0 6px}
.step p{font-size:14px;color:var(--muted)}

/* categories */
.cat-grid{display:grid;grid-template-columns:repeat(5,1fr);gap:24px}
.cat{border-top:2px solid var(--green);padding:14px 10px 16px 0;transition:background .18s ease}
.cat:hover{background:var(--soft)}
.cat .cn{font-size:30px;font-weight:800;color:#E3DCCC;line-height:1}
.cat h3{font-size:17px;margin:8px 0 6px}
.cat p{font-size:14px;color:var(--muted);margin-bottom:12px}
.cat a{display:inline-flex;align-items:center;gap:6px;font-size:14px;font-weight:600;color:var(--green)}
.cat a .arw{transition:transform .18s ease}
.cat:hover a .arw{transform:translateX(4px)}

/* rank */
.rank-panel{background:var(--green);border-radius:16px;padding:28px;color:#F5F1E8}
.rank-panel h2{font-size:clamp(22px,2.6vw,30px);font-weight:800;margin-bottom:6px}
.rank-panel .rank-sub{font-size:14px;color:rgba(245,241,232,.72);margin-bottom:18px}
.rank-list{display:grid;grid-template-columns:1fr 1fr;grid-template-rows:repeat(5,auto);grid-auto-flow:column;column-gap:36px}
.rank-list li{display:grid;grid-template-columns:30px 1fr auto auto auto;gap:10px;align-items:center;padding:12px 10px;border-bottom:1px solid rgba(245,241,232,.14);font-size:14px;transition:background .18s ease}
.rank-list li:hover{background:rgba(245,241,232,.06)}
.rk{font-weight:700;color:rgba(245,241,232,.55)}
li.top .rk{color:var(--orange)}
.rname{overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.rheat{color:var(--brass);font-weight:700}
.rscore{color:rgba(245,241,232,.8)}
.rtag{font-size:11px;padding:2px 8px;border:1px solid rgba(245,241,232,.4);border-radius:999px;color:rgba(245,241,232,.85);white-space:nowrap}

/* stats */
.stat-panel{display:grid;grid-template-columns:repeat(4,1fr);gap:1px;background:var(--line);border:1px solid var(--line);border-radius:var(--r);overflow:hidden}
.stat{background:var(--card);padding:26px 22px}
.stat b{display:block;font-size:34px;font-weight:800;color:var(--green);line-height:1.1}
.stat span{display:block;font-size:14px;color:var(--ink);margin-top:6px}
.stat small{display:block;font-size:12px;color:var(--muted);margin-top:2px}

/* quotes */
.quote-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.quote{background:var(--card);border:1px solid var(--line);border-radius:var(--r);padding:22px}
.qm{font-family:Georgia,"Times New Roman",serif;font-size:40px;line-height:.8;color:var(--brass)}
.quote p{font-size:15px;margin:12px 0 18px}
.q-user{display:flex;align-items:center;gap:10px;font-size:13px;color:var(--muted)}
.avatar{width:34px;height:34px;border-radius:50%;background:#EDE7DA;color:var(--green);font-weight:700;display:flex;align-items:center;justify-content:center;font-size:14px}

/* who */
.who{display:grid;grid-template-columns:1fr 1fr;gap:20px 32px}
.who li{display:flex;gap:16px;padding:18px 20px;border-left:3px solid var(--line);background:var(--card);border-radius:0 var(--r) var(--r) 0}
.who li:nth-child(even){margin-top:22px;border-left-color:var(--brass)}
.who li:nth-child(odd){border-left-color:var(--green)}
.who .wn{font-size:13px;font-weight:700;color:var(--brass);letter-spacing:.08em}
.who h3{font-size:17px;margin:2px 0 4px}
.who p{font-size:14px;color:var(--muted)}

/* news */
.news-grid{display:grid;grid-template-columns:1fr 1fr;gap:18px}
.news{display:grid;grid-template-columns:150px 1fr;gap:16px;align-items:center;padding:12px;background:var(--card);border:1px solid var(--line);border-radius:var(--r);transition:border-color .18s ease,transform .18s ease}
.news:hover{border-color:var(--orange);transform:translateY(-2px)}
.news-thumb{aspect-ratio:16/9;border-radius:8px;overflow:hidden;background:#E7E1D4}
.news-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .18s ease}
.news:hover .news-thumb img{transform:scale(1.03)}
.news h3{font-size:15px;line-height:1.5;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;transition:color .18s ease}
.news:hover h3{color:var(--green)}
.news time{display:block;font-size:13px;color:var(--muted);margin-top:6px}

/* metrics */
.metrics{display:grid;grid-template-columns:repeat(5,1fr);border-top:1px solid var(--line);border-bottom:1px solid var(--line);background:var(--soft)}
.metric{padding:20px 18px;border-left:1px solid var(--line)}
.metric:first-child{border-left:0}
.metric b{display:block;font-size:22px;font-weight:800;color:var(--green)}
.metric span{font-size:12px;color:var(--muted)}

/* faq */
.faq-wrap{display:grid;grid-template-columns:.85fr 1.15fr;gap:40px}
.faq-wrap .sec-head{margin-bottom:0}
.faq-list details{border-bottom:1px solid var(--line)}
.faq-list details:first-child{border-top:1px solid var(--line)}
.faq-list summary{display:flex;align-items:center;justify-content:space-between;gap:16px;padding:18px 0;font-weight:600;font-size:16px;cursor:pointer;list-style:none}
.faq-list summary::-webkit-details-marker{display:none}
.faq-list summary::after{content:"+";font-size:22px;line-height:1;color:var(--green);transition:transform .18s ease,color .18s ease}
.faq-list details[open] summary::after{transform:rotate(45deg);color:var(--orange)}
.faq-list p{font-size:15px;color:var(--muted);padding-bottom:18px;max-width:620px}

/* cta */
.cta{position:relative;overflow:hidden;background:var(--green);color:#F5F1E8;border-radius:16px;padding:40px;display:grid;grid-template-columns:1.15fr .85fr;gap:32px;align-items:center}
.cta::before{content:"";position:absolute;inset:0;background-image:linear-gradient(to bottom,rgba(245,241,232,.07) 1px,transparent 1px);background-size:100% 32px;pointer-events:none}
.cta>*{position:relative}
.cta h2{font-size:clamp(22px,2.8vw,30px);font-weight:800;line-height:1.3}
.cta p{font-size:14px;color:rgba(245,241,232,.78);margin-top:10px;max-width:460px}
.cta-side{display:flex;flex-direction:column;gap:12px}
.remind{display:flex;gap:10px;margin-top:4px}
.remind input{flex:1;min-width:0;height:44px;padding:0 14px;border-radius:8px;border:1px solid rgba(245,241,232,.35);background:rgba(245,241,232,.08);color:#F5F1E8;font-size:14px}
.remind input::placeholder{color:rgba(245,241,232,.6)}
.remind button{min-height:44px;padding:0 18px;border-radius:8px;background:#F5F1E8;color:var(--green);font-weight:600;font-size:14px;transition:background .18s ease}
.remind button:hover{background:#fff}

/* footer */
.foot{background:var(--green);color:#F5F1E8;margin-top:80px;padding-top:56px}
.foot-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:32px;padding-bottom:36px}
.foot-brand{display:flex;align-items:center;gap:10px;margin-bottom:12px}
.foot-brand .logo i{box-shadow:0 0 0 3px var(--green)}
.foot p{font-size:14px;color:rgba(245,241,232,.72);max-width:280px}
.foot h4{font-size:13px;letter-spacing:.1em;color:rgba(245,241,232,.6);margin-bottom:12px;font-weight:600}
.foot a{display:block;font-size:14px;color:rgba(245,241,232,.86);padding:5px 0;transition:color .18s ease}
.foot a:hover{color:var(--orange)}
.copyright{border-top:1px solid rgba(245,241,232,.16);padding:18px 0;font-size:13px;color:rgba(245,241,232,.7);display:flex;justify-content:space-between;gap:12px;flex-wrap:wrap}

@media(max-width:1024px){
  .head-in{height:64px}
  .burger{display:inline-flex}
  .nav{position:fixed;inset:0 0 0 auto;width:min(320px,86vw);background:var(--bg);border-left:1px solid var(--line);flex-direction:column;align-items:stretch;gap:0;padding:72px 24px 24px;transform:translateX(100%);transition:transform .25s ease;z-index:90;box-shadow:-8px 0 32px rgba(11,59,52,.12)}
  .nav.open{transform:translateX(0)}
  .nav a{display:flex;align-items:center;min-height:48px;font-size:16px;border-bottom:1px solid var(--line);border-left:0}
  .nav-close{display:flex;position:absolute;top:16px;right:20px;width:44px;height:44px;align-items:center;justify-content:center;font-size:22px;color:var(--green);border:1px solid var(--line);border-radius:8px}
  .live-tag{display:none}
  .hero-copy,.term{grid-column:span 12}
  .ch-grid{grid-template-columns:repeat(3,1fr)}
  .cat-grid{grid-template-columns:repeat(2,1fr);gap:20px}
  .solve{grid-template-columns:1fr;gap:28px}
  .steps{grid-template-columns:1fr 1fr;row-gap:24px}
  .step{padding:0 0 0 22px}
  .step:nth-child(3){padding-left:0;border-left:0}
  .step:nth-child(3),.step:nth-child(4){margin-top:8px}
  .steps{border-top:1px solid var(--line)}
}
@media(max-width:768px){
  .sec{padding:48px 0}
  .hero{padding:40px 0 48px}
  .ch-grid{grid-template-columns:repeat(2,1fr);gap:16px}
  .hot-grid,.news-grid,.quote-grid,.who,.faq-wrap,.stat-panel{grid-template-columns:1fr}
  .who li:nth-child(even){margin-top:0}
  .rank-list{grid-template-columns:1fr;grid-template-rows:none;grid-auto-flow:row;column-gap:0}
  .rank-list li{grid-template-columns:28px 1fr auto;row-gap:4px}
  .rtag{grid-column:2;justify-self:start}
  .metrics{grid-template-columns:repeat(2,1fr)}
  .metric{border-left:0;border-top:1px solid var(--line)}
  .metric:nth-child(2n){border-left:1px solid var(--line)}
  .metric:nth-child(-n+2){border-top:0}
  .cta{grid-template-columns:1fr;padding:28px}
  .foot-grid{grid-template-columns:1fr 1fr}
  .stat-panel{gap:1px}
  .stat{border-top:1px solid var(--line)}
  .stat:nth-child(-n+2){border-top:0}
}
@media(max-width:520px){
  .wrap{padding:0 20px}
  .brand-name{font-size:15px}
  h1{font-size:32px}
  .hero-btns .btn{width:100%}
  .pain li{grid-template-columns:52px 1fr;gap:12px}
  .ch-grid{grid-template-columns:repeat(2,1fr)}
  .ch-body h3{font-size:15px}
  .steps{grid-template-columns:1fr}
  .step{padding:0 0 0 18px;border-left:1px dashed var(--line)}
  .step:nth-child(3){padding-left:18px;border-left:1px dashed var(--line)}
  .step:first-child{padding-left:0;border-left:0}
  .cat-grid{grid-template-columns:1fr}
  .news{grid-template-columns:112px 1fr;gap:12px}
  .rank-panel{padding:20px}
  .rank-list li{font-size:13px}
  .foot-grid{grid-template-columns:1fr}
  .remind{flex-direction:column}
  .remind button{width:100%;min-height:44px}
}