/* roulang page: index */
:root{
  --paper:#F6F3EA;--paper2:#EDE7D8;--ink:#10221E;--ink2:#3A4F49;
  --green:#2F6E52;--green-lt:#56A76F;--amber:#D9A441;--mist:#6E8F94;
  --dark:#13251F;--line:rgba(16,34,30,.12);
  --r:14px;--sh:0 1px 0 rgba(16,34,30,.08);--sh-h:0 10px 24px rgba(47,110,82,.14);
  --ff:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei",system-ui,-apple-system,sans-serif;
  --num:"SFMono-Regular",Consolas,"PingFang SC",monospace;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;font-family:var(--ff);font-size:16px;line-height:1.75;color:var(--ink);background:var(--paper);-webkit-font-smoothing:antialiased}
img{display:block;max-width:100%;height:auto}
a{color:var(--green);text-decoration:none}
p{margin:0 0 1em}
p:last-child{margin-bottom:0}
ul{margin:0;padding:0;list-style:none}
h1,h2,h3{margin:0;line-height:1.25}
:focus-visible{outline:2px solid var(--amber);outline-offset:3px}
.num{font-family:var(--num);font-variant-numeric:tabular-nums;font-feature-settings:"tnum"}
.container{max-width:1200px;margin:0 auto;padding:0 32px}
section[id]{scroll-margin-top:84px}

/* buttons & links */
.btn{display:inline-flex;align-items:center;justify-content:center;height:48px;padding:0 26px;border-radius:999px;font-size:15px;font-weight:600;border:1.5px solid transparent;cursor:pointer;font-family:inherit;transition:background .18s,transform .18s,color .18s,border-color .18s;white-space:nowrap}
.btn-primary{background:var(--green);color:#FBF8F0}
.btn-primary:hover{background:var(--green-lt);transform:translateY(-1px)}
.btn-ghost{border-color:var(--green);color:var(--green);background:transparent}
.btn-ghost:hover{background:rgba(86,167,111,.14)}
.btn-sm{height:40px;padding:0 18px;font-size:14px}
.btn-outline-light{border-color:rgba(251,248,240,.5);color:#F1EEE2;background:transparent}
.btn-outline-light:hover{border-color:var(--amber);color:var(--amber)}
.link{position:relative;font-weight:600;color:var(--green);white-space:nowrap}
.link::after{content:"";position:absolute;left:0;right:0;bottom:-2px;height:3px;background:var(--amber);transform:scaleX(0);transform-origin:left;transition:transform .18s}
.link:hover::after{transform:scaleX(1)}

/* header */
.site-header{position:sticky;top:0;z-index:60;background:rgba(246,243,234,.95);border-bottom:1px solid var(--line)}
.bar{display:flex;align-items:center;gap:20px;height:64px}
.brand{display:flex;align-items:center;gap:10px;color:var(--ink);font-weight:700;flex:0 0 auto}
.brand:hover{text-decoration:none}
.brand-mark{display:grid;place-items:center;width:34px;height:34px;border-radius:8px;background:var(--green);color:#FBF8F0;font-size:17px;font-weight:800}
.brand-name{font-size:16px;letter-spacing:.2px;white-space:nowrap}
.nav{display:flex;align-items:center;gap:22px;margin-left:auto;font-size:14.5px}
.nav a{color:var(--ink2);transition:color .16s}
.nav a:hover{color:var(--green)}
.head-cta{flex:0 0 auto}
.burger{display:none}
.nav-toggle{display:none}

/* hero */
.hero{position:relative;overflow:hidden;background:var(--dark);padding:84px 0 76px;text-align:center}
.hero-bg{position:absolute;inset:0;background:url(/assets/images/97c44bff516f5d31.jpg) center/cover no-repeat}
.hero::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(19,37,31,.88),rgba(19,37,31,.94))}
.hero-inner{position:relative;z-index:2;max-width:820px;margin:0 auto;padding:0 32px}
.eyebrow{display:inline-flex;align-items:center;gap:8px;font-size:13px;letter-spacing:.4px;color:#9CC4A9;border:1px solid rgba(156,196,169,.35);border-radius:999px;padding:5px 16px;margin:0 0 22px}
.hero h1{font-size:clamp(34px,5.2vw,60px);font-weight:800;line-height:1.15;letter-spacing:-.5px;color:#FBF8F0;margin:0 0 16px}
.hl{position:relative;display:inline-block}
.hl::after{content:"";position:absolute;left:-2px;right:-2px;bottom:-8px;height:6px;border-radius:3px;background:var(--amber)}
.hero-sub{margin:0 0 12px;font-size:16px;font-weight:600;color:#C9DCCF;letter-spacing:.3px}
.hero-desc{max-width:600px;margin:0 auto 28px;font-size:15px;line-height:1.8;color:rgba(233,240,230,.76)}
.search{display:flex;align-items:center;gap:8px;max-width:560px;margin:0 auto 18px;padding:6px 6px 6px 22px;border-radius:999px;border:1px solid rgba(251,248,240,.28);background:rgba(251,248,240,.09)}
.search input{flex:1;min-width:0;height:44px;border:0;background:transparent;color:#FBF8F0;font-size:15px;font-family:inherit;outline:none}
.search input::placeholder{color:rgba(251,248,240,.55)}
.chips{display:flex;flex-wrap:wrap;justify-content:center;align-items:center;gap:8px;margin:0 auto 24px;font-size:13.5px}
.chips span{color:rgba(233,240,230,.55)}
.chips a{padding:5px 14px;border-radius:999px;border:1px solid rgba(251,248,240,.22);color:#DCE9DE;transition:all .16s}
.chips a:hover{border-color:var(--amber);color:var(--amber)}
.hero-cta{display:flex;justify-content:center;gap:12px;flex-wrap:wrap}

/* strip */
.strip{background:var(--paper2);border-top:1px solid var(--line);border-bottom:3px double var(--line)}
.strip-list{display:grid;grid-template-columns:repeat(4,1fr)}
.strip-list li{padding:26px 22px;border-right:1px solid var(--line)}
.strip-list li:last-child{border-right:0}
.strip-list b{display:block;font-size:16px;font-weight:700;margin-bottom:2px}
.strip-list em{font-style:normal;font-size:13.5px;color:var(--ink2);line-height:1.65}

/* generic section */
.sec{padding:76px 0;border-top:1px solid var(--line)}
.sec-alt{background:var(--paper2)}
.sec-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:26px}
.sec-head h2{font-size:clamp(24px,3vw,34px);font-weight:700;letter-spacing:-.3px;padding-left:16px;position:relative}
.sec-head h2::before{content:"";position:absolute;left:0;top:.16em;bottom:.16em;width:4px;border-radius:2px;background:var(--green)}
.dia{display:inline-block;font-size:.52em;color:var(--amber);vertical-align:middle;margin-right:8px}
.sec-sub{margin:8px 0 0;font-size:14.5px;line-height:1.7;color:var(--ink2)}

/* live cards */
.grid{display:grid;gap:22px}
.grid-4{grid-template-columns:repeat(4,1fr)}
.card{background:#FBF8F0;border:1px solid var(--line);border-radius:var(--r);box-shadow:var(--sh);transition:box-shadow .2s,transform .2s}
.card:hover{box-shadow:var(--sh-h);transform:translateY(-2px)}
.live-card{padding:12px 12px 14px}
.thumb{position:relative;aspect-ratio:16/9;border-radius:12px;overflow:hidden;background:var(--paper2);box-shadow:inset 0 0 0 1px var(--line)}
.thumb img{width:100%;height:100%;object-fit:cover;transition:transform .45s}
.live-card:hover .thumb img{transform:scale(1.05)}
.badge{position:absolute;top:10px;font-size:12px;font-weight:600;line-height:1;padding:5px 9px;border-radius:4px}
.badge-free{right:10px;background:var(--amber);color:#2A1B00}
.tag-cat{position:absolute;left:10px;top:10px;font-size:12px;font-weight:600;line-height:1;padding:5px 9px;border-radius:4px;background:#EDE7D8;color:var(--green)}
.live-row{display:flex;align-items:baseline;justify-content:space-between;gap:10px;margin:12px 0 4px}
.live-name{font-size:15px;font-weight:600}
.online{font-size:13px;color:var(--mist);font-family:var(--num);font-variant-numeric:tabular-nums;white-space:nowrap}
.live-title{font-size:13.5px;line-height:1.65;color:var(--ink2);margin:0}

/* feature cards */
.grid-3{grid-template-columns:repeat(3,1fr)}
.fcard{position:relative;overflow:hidden;padding:26px 24px;background:#FBF8F0;border:1px solid var(--line);border-radius:var(--r);box-shadow:var(--sh);transition:box-shadow .2s,transform .2s}
.fcard:hover{box-shadow:var(--sh-h);transform:translateY(-2px)}
.fcard::after{content:"";position:absolute;top:0;right:0;border-style:solid;border-width:0 24px 24px 0;border-color:transparent var(--amber) transparent transparent}
.ico{display:grid;place-items:center;width:40px;height:40px;border-radius:10px;background:rgba(47,110,82,.1);color:var(--green);font-size:18px;font-weight:700;margin-bottom:14px}
.fcard h3{font-size:18px;font-weight:600;margin-bottom:8px}
.fcard p{font-size:14px;line-height:1.7;color:var(--ink2);margin:0}

/* upcoming */
.up-card{padding:12px 12px 14px;display:flex;flex-direction:column}
.up-time{font-size:15px;font-weight:700;color:var(--green);font-family:var(--num);font-variant-numeric:tabular-nums}
.up-foot{display:flex;align-items:center;justify-content:space-between;gap:10px;margin-top:10px}
.mini-tag{font-size:12px;padding:3px 9px;border-radius:4px;border:1px solid var(--mist);color:var(--mist)}

/* scenes */
.scene{display:grid;grid-template-columns:1fr 1fr;gap:44px;align-items:center;padding:26px 0;border-bottom:1px solid var(--line)}
.scene:last-child{border-bottom:0}
.scene:nth-child(even) .scene-media{order:2}
.scene-media{aspect-ratio:4/3;border-radius:var(--r);overflow:hidden;border:1px solid var(--line);box-shadow:var(--sh)}
.scene-media img{width:100%;height:100%;object-fit:cover}
.scene-body h3{font-size:20px;font-weight:700;margin-bottom:10px}
.scene-body p{font-size:14.5px;line-height:1.8;color:var(--ink2);margin:0}

/* category */
.cat-card{position:relative;padding:24px 22px;display:flex;flex-direction:column;gap:10px}
.cat-card h3{font-size:17px;font-weight:700}
.cat-card p{font-size:13.5px;line-height:1.7;color:var(--ink2);margin:0;flex:1}
.cat-card .link{font-size:13.5px;align-self:flex-start}

/* demo */
.demo{display:grid;grid-template-columns:1.05fr .95fr;gap:48px;align-items:center}
.phones{display:flex;gap:16px;justify-content:center;align-items:flex-start}
.phone{width:31%;aspect-ratio:9/19.5;border-radius:20px;overflow:hidden;border:1px solid var(--line);box-shadow:0 10px 24px rgba(47,110,82,.12);background:var(--paper2)}
.phone:nth-child(2){margin-top:38px}
.phone:nth-child(3){margin-top:18px}
.phone img{width:100%;height:100%;object-fit:cover}
.demo-list{display:grid;gap:18px;margin:0 0 26px}
.demo-list li{display:flex;gap:14px;align-items:flex-start;font-size:14.5px;line-height:1.75;color:var(--ink2)}
.demo-list b{font-weight:700;color:var(--ink)}
.demo-list .dot{flex:0 0 auto;width:22px;height:22px;border-radius:50%;background:rgba(217,164,65,.18);color:#8A6212;display:grid;place-items:center;font-size:12px;font-weight:700;margin-top:3px}

/* cases */
.case-card{padding:16px}
.case-card .thumb{aspect-ratio:4/3;margin-bottom:14px}
.case-card h3{font-size:17px;font-weight:700;margin-bottom:8px}
.case-card p{font-size:13.5px;line-height:1.7;color:var(--ink2);margin:0 0 12px}
.case-stat{display:flex;gap:20px;padding-top:12px;border-top:1px dashed var(--line)}
.case-stat span{font-size:13px;color:var(--ink2)}
.case-stat b{display:block;font-size:19px;color:var(--green);font-family:var(--num);font-variant-numeric:tabular-nums}

/* plans */
.plans{display:grid;grid-template-columns:repeat(3,1fr);gap:22px;align-items:start}
.plan{padding:30px 26px;background:#FBF8F0;border:1px solid var(--line);border-radius:var(--r);box-shadow:var(--sh);display:flex;flex-direction:column}
.plan-featured{border:2px solid var(--green);transform:translateY(-8px);position:relative}
.plan-flag{position:absolute;top:-14px;left:26px;background:var(--amber);color:#2A1B00;font-size:12px;font-weight:700;padding:4px 12px;border-radius:4px}
.plan-name{font-size:16px;font-weight:700;margin-bottom:6px}
.plan-price{font-size:44px;font-weight:800;line-height:1.1;font-family:var(--num);font-variant-numeric:tabular-nums;color:var(--ink)}
.plan-price small{font-size:14px;font-weight:500;color:var(--ink2);margin-left:4px;font-family:var(--ff)}
.plan-cycle{display:inline-flex;gap:6px;font-size:12px;margin:12px 0 18px;color:var(--ink2)}
.plan-cycle span{padding:3px 12px;border-radius:999px;border:1px solid var(--line)}
.plan-cycle .on{background:rgba(47,110,82,.1);border-color:transparent;color:var(--green);font-weight:600}
.plan ul{display:grid;gap:9px;margin:0 0 22px;font-size:13.5px;color:var(--ink2)}
.plan li::before{content:"◆";color:var(--green-lt);font-size:10px;margin-right:8px;vertical-align:1px}
.plan .btn{width:100%;margin-top:auto}

/* reviews */
.review{padding:22px;background:var(--paper2);border-radius:var(--r)}
.review-top{display:flex;align-items:center;gap:10px;margin-bottom:10px}
.avatar{width:36px;height:36px;border-radius:50%;background:rgba(47,110,82,.16);color:var(--green);display:grid;place-items:center;font-size:14px;font-weight:700;flex:0 0 auto}
.review-top b{font-size:14px;font-weight:600}
.review p{font-size:13.5px;line-height:1.75;color:var(--ink2);margin:0 0 10px}
.stars{color:var(--amber);font-size:13px;letter-spacing:2px}

/* stats */
.stats{background:var(--dark);padding:56px 0;box-shadow:inset 0 0 0 1px rgba(86,167,111,.18)}
.stats-grid{display:grid;grid-template-columns:repeat(4,1fr)}
.stats-grid li{padding:0 24px;border-right:1px solid rgba(251,248,240,.14);text-align:left}
.stats-grid li:last-child{border-right:0}
.stats-num{display:block;font-size:38px;font-weight:800;line-height:1.2;color:#F1EEE2;font-family:var(--num);font-variant-numeric:tabular-nums}
.stats-num i{font-style:normal;font-size:20px;color:var(--amber);margin-left:2px}
.stats-label{display:block;font-size:13.5px;color:#9FB6AA;margin-top:4px}

/* rank */
.rank-wrap{display:grid;grid-template-columns:1fr 1fr;gap:0 48px}
.rank-row{display:grid;grid-template-columns:52px 1fr auto auto;align-items:center;gap:14px;height:56px;padding:0 12px;border-bottom:1px solid var(--line);transition:background .15s;border-radius:8px}
.rank-row:hover{background:var(--paper2)}
.rank-no{font-size:22px;font-weight:800;color:rgba(16,34,30,.16);font-family:var(--num);font-variant-numeric:tabular-nums;text-align:right}
.rank-row.top .rank-no{color:var(--amber)}
.rank-name{font-size:15px;font-weight:600;justify-self:start}
.rank-cat{font-size:12px;padding:3px 9px;border-radius:4px;background:rgba(47,110,82,.1);color:var(--green)}

/* news */
.news-card{padding:14px}
.news-card .thumb{aspect-ratio:4/3;margin-bottom:12px}
.news-card h3{font-size:15px;font-weight:600;line-height:1.6;margin-bottom:10px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.news-date{font-size:13px;color:var(--mist);font-family:var(--num);font-variant-numeric:tabular-nums}
.news-card a:hover h3{color:var(--green)}

/* faq */
.faq{max-width:880px;margin:0 auto}
.faq details{background:#FBF8F0;border:1px solid var(--line);border-radius:var(--r);margin-bottom:12px;padding:0 22px;box-shadow:var(--sh)}
.faq summary{list-style:none;cursor:pointer;display:flex;align-items:center;justify-content:space-between;gap:16px;min-height:56px;padding:14px 0;font-size:15.5px;font-weight:600}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{content:"+";font-size:20px;font-weight:400;color:var(--green);transition:transform .2s;flex:0 0 auto}
.faq details[open] summary::after{transform:rotate(45deg)}
.faq details p{font-size:14px;line-height:1.8;color:var(--ink2);margin:0;padding:14px 0 20px;border-top:1px dashed var(--line)}

/* cta */
.cta{background:var(--dark);padding:72px 0;text-align:center;position:relative;overflow:hidden}
.cta-bg{position:absolute;inset:0;background:url(/assets/images/2b42394327231266.jpg) center/cover no-repeat;opacity:.22}
.cta-inner{position:relative;z-index:2;max-width:640px;margin:0 auto;padding:0 32px}
.cta h2{font-size:clamp(24px,3vw,34px);font-weight:800;color:#FBF8F0;margin-bottom:12px}
.cta p{color:rgba(233,240,230,.72);font-size:14.5px;margin:0 0 26px}
.cta-btns{display:flex;justify-content:center;gap:12px;flex-wrap:wrap}
.qr{width:64px;height:64px;margin:28px auto 0;border-radius:10px;border:1px dashed rgba(251,248,240,.35);display:grid;place-items:center;color:rgba(251,248,240,.55);font-size:11px;line-height:1.3;text-align:center}

/* footer */
.site-footer{background:var(--paper2);border-top:3px double var(--line);padding:56px 0 0}
.foot-grid{display:grid;grid-template-columns:1.4fr 1fr 1.2fr 1fr;gap:40px;padding-bottom:40px}
.foot-brand{display:flex;align-items:center;gap:10px;margin-bottom:12px;font-weight:700;color:var(--ink)}
.site-footer h3{font-size:14px;font-weight:700;margin-bottom:14px;color:var(--ink)}
.site-footer p{font-size:13.5px;line-height:1.8;color:var(--ink2)}
.foot-list{display:grid;gap:9px;font-size:13.5px}
.foot-list a{color:var(--ink2)}
.foot-list a:hover{color:var(--green)}
.foot-note{font-size:12.5px;line-height:1.8;color:var(--ink2);margin:0 0 6px}
.copy{border-top:1px solid var(--line);padding:18px 0;font-size:12.5px;color:var(--ink2);display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap}

@media (max-width:1024px){
  .container{padding:0 24px}
  .grid-4{grid-template-columns:repeat(3,1fr)}
  .grid-3{grid-template-columns:repeat(2,1fr)}
  .strip-list{grid-template-columns:repeat(2,1fr)}
  .strip-list li:nth-child(2n){border-right:0}
  .strip-list li:nth-child(n+3){border-top:1px solid var(--line)}
  .demo{grid-template-columns:1fr;gap:36px}
  .plans{grid-template-columns:1fr;gap:26px}
  .plan-featured{transform:none}
  .stats-grid{grid-template-columns:repeat(2,1fr);gap:28px 0}
  .stats-grid li:nth-child(2n){border-right:0}
  .rank-wrap{grid-template-columns:1fr;gap:0}
  .foot-grid{grid-template-columns:1fr 1fr;gap:32px}
  .nav{gap:16px;font-size:14px}
}
@media (max-width:768px){
  .container{padding:0 20px}
  .bar{height:56px;gap:12px}
  .brand-name{font-size:15px}
  .head-cta{display:none}
  .burger{display:grid;place-items:center;width:44px;height:44px;margin-left:auto;border:1px solid var(--line);border-radius:10px;cursor:pointer;font-size:18px;color:var(--ink);background:#FBF8F0}
  .nav{position:absolute;top:56px;left:0;right:0;display:none;flex-direction:column;align-items:stretch;gap:0;margin:0;padding:8px 20px 18px;background:var(--paper);border-bottom:1px solid var(--line);box-shadow:0 12px 24px rgba(16,34,30,.1);font-size:15px}
  .nav a{display:flex;align-items:center;min-height:46px;border-bottom:1px solid var(--line);padding:0 4px}
  .nav a:last-child{border-bottom:0}
  .nav-toggle:checked ~ .nav{display:flex}
  .hero{padding:60px 0 56px}
  .hero-inner{padding:0 20px}
  .search{flex-wrap:wrap;border-radius:16px;padding:12px}
  .search input{width:100%;height:44px}
  .search .btn{width:100%}
  .sec{padding:52px 0}
  .sec-head{flex-direction:column;align-items:flex-start;gap:12px}
  .grid-4{grid-template-columns:repeat(2,1fr)}
  .grid-3{grid-template-columns:1fr}
  .scene{grid-template-columns:1fr;gap:20px;padding:22px 0}
  .scene:nth-child(even) .scene-media{order:0}
  .rank-row{grid-template-columns:44px 1fr auto;gap:10px}
  .rank-cat{display:none}
  .stats{padding:44px 0}
  .cta{padding:56px 0}
}
@media (max-width:520px){
  .grid-4{grid-template-columns:1fr}
  .strip-list{grid-template-columns:1fr}
  .strip-list li{border-right:0;border-top:1px solid var(--line);padding:18px 20px}
  .strip-list li:first-child{border-top:0}
  .phones{gap:10px}
  .phone:nth-child(2){margin-top:20px}
  .phone:nth-child(3){margin-top:10px}
  .stats-grid{grid-template-columns:1fr;gap:22px}
  .stats-grid li{border-right:0}
  .stats-num{font-size:32px}
  .foot-grid{grid-template-columns:1fr;gap:26px}
  .hero-cta .btn{width:100%}
  .plan-price{font-size:38px}
  .copy{flex-direction:column;gap:6px}
}
@media (prefers-reduced-motion:reduce){
  *{transition:none!important;animation:none!important}
  html{scroll-behavior:auto}
}