/* roulang page: index */
:root{
  --ink:#202722;--muted:#68736c;--paper:#f7f7f2;--white:#fff;
  --green:#177a58;--green-dark:#10523f;--lime:#d8f06a;--coral:#e06b50;
  --line:#e2e7df;--soft:#edf2eb;--shadow:0 14px 34px rgba(27,48,37,.09);
  --radius:10px;--radius-lg:16px;--max:1180px
}
*{box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:90px}
body{margin:0;background:var(--paper);color:var(--ink);font-family:Inter,"Noto Sans SC","Microsoft YaHei",sans-serif;font-size:15px;line-height:1.7}
a{color:inherit;text-decoration:none}
img{display:block;width:100%;height:auto}
button,input{font:inherit}
button,a{-webkit-tap-highlight-color:transparent}
a:focus-visible,button:focus-visible,input:focus-visible{outline:3px solid #9bc947;outline-offset:3px}
.container{width:min(var(--max),calc(100% - 48px));margin-inline:auto}
.site-header{position:sticky;top:0;z-index:20;background:rgba(247,247,242,.95);border-bottom:1px solid rgba(226,231,223,.9);backdrop-filter:blur(14px)}
.nav-wrap{height:74px;display:flex;align-items:center;gap:32px}
.brand{display:flex;align-items:center;gap:11px;flex-shrink:0;font-weight:800;font-size:17px}
.brand-mark{width:38px;height:38px;display:grid;place-items:center;border-radius:9px;background:var(--green);color:#fff;font-size:17px;font-weight:900}
.nav-links{display:flex;align-items:center;gap:26px;margin-left:auto}
.nav-links a{color:#526057;font-size:13px;font-weight:650;transition:color .2s}
.nav-links a:hover,.nav-links a.active{color:var(--green)}
.nav-action{display:inline-flex;align-items:center;justify-content:center;min-height:40px;padding:0 16px;background:var(--ink);color:#fff;border-radius:7px;font-size:13px;font-weight:700;transition:background .2s,transform .2s}
.nav-action:hover{background:var(--green);transform:translateY(-1px)}
.menu-toggle{display:none;width:42px;height:42px;border:1px solid var(--line);border-radius:7px;background:#fff;color:var(--ink);font-size:20px;cursor:pointer}
.hero{position:relative;overflow:hidden;min-height:512px;background:#153d32;color:#fff;isolation:isolate}
.hero::before{content:"";position:absolute;inset:0;z-index:-2;background:linear-gradient(90deg,rgba(9,39,30,.92) 0%,rgba(12,48,37,.78) 51%,rgba(13,45,36,.2) 100%),url("https://images.unsplash.com/photo-1489599849927-2ee91cede3ba?auto=format&fit=crop&w=2000&q=88") center 43%/cover}
.hero::after{content:"";position:absolute;z-index:-1;right:-6%;top:-28%;width:49%;height:155%;background:var(--lime);transform:skewX(-17deg);opacity:.96}
.hero-inner{min-height:512px;display:grid;grid-template-columns:1.05fr .95fr;align-items:center}
.hero-copy{padding:70px 0 76px;max-width:640px}
.eyebrow{display:inline-flex;align-items:center;gap:9px;color:#d8f06a;font-size:12px;font-weight:800;letter-spacing:0}
.eyebrow::before{content:"";width:22px;height:2px;background:currentColor}
.hero h1{max-width:650px;margin:19px 0 16px;font-size:48px;line-height:1.22;font-weight:850}
.hero h1 span{color:var(--lime)}
.hero-lead{max-width:610px;margin:0;color:#e1eae4;font-size:16px;line-height:1.9}
.hero-summary{max-width:580px;margin:14px 0 24px;color:#c6d6cd;font-size:14px}
.button{display:inline-flex;align-items:center;justify-content:center;gap:10px;min-height:46px;padding:0 20px;border:1px solid transparent;border-radius:7px;font-size:14px;font-weight:750;transition:transform .2s,background .2s,border-color .2s}
.button:hover{transform:translateY(-2px)}
.button-primary{background:var(--lime);color:#203220}
.button-primary:hover{background:#e4f993}
.button-ghost{border-color:rgba(255,255,255,.45);color:#fff}
.button-ghost:hover{background:rgba(255,255,255,.12)}
.hero-actions{display:flex;gap:11px;flex-wrap:wrap}
.hero-aside{display:flex;justify-content:flex-end;align-items:flex-end;min-height:100%;padding:40px 0 46px 20px}
.hero-note{width:min(330px,100%);padding:24px;background:#fff;color:var(--ink);border-left:4px solid var(--green);box-shadow:var(--shadow)}
.note-label{display:block;color:var(--green);font-size:11px;font-weight:800;text-transform:uppercase}
.hero-note strong{display:block;margin:9px 0;font-size:19px;line-height:1.45}
.hero-note p{margin:0;color:var(--muted);font-size:13px}
.metrics{background:var(--white);border-bottom:1px solid var(--line)}
.metric-row{display:grid;grid-template-columns:repeat(4,1fr);padding:23px 0}
.metric{padding:2px 25px;border-right:1px solid var(--line)}
.metric:first-child{padding-left:0}
.metric:last-child{border:0}
.metric strong{display:block;font-size:24px;line-height:1.2;color:var(--green-dark)}
.metric span{display:block;margin-top:4px;color:var(--muted);font-size:12px}
.section{padding:76px 0}
.section-white{background:var(--white)}
.section-tint{background:#eef2e9}
.section-dark{background:#1e3028;color:#fff}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:29px}
.section-kicker{margin:0 0 7px;color:var(--green);font-size:11px;font-weight:850;text-transform:uppercase}
.section-dark .section-kicker{color:var(--lime)}
.section-title{margin:0;font-size:30px;line-height:1.3;font-weight:820}
.section-desc{max-width:670px;margin:10px 0 0;color:var(--muted);font-size:14px}
.section-dark .section-desc{color:#bdc9c1}
.text-link{display:inline-flex;align-items:center;gap:8px;color:var(--green);font-size:13px;font-weight:750;white-space:nowrap}
.text-link:hover{color:var(--coral)}
.latest-grid{display:grid;grid-template-columns:repeat(6,minmax(0,1fr));gap:20px 16px}
.poster-card{min-width:0}
.poster{position:relative;overflow:hidden;aspect-ratio:3/4.15;background:#dce4d9;border-radius:8px}
.poster img{width:100%;height:100%;object-fit:cover;transition:transform .35s}
.poster-card:hover .poster img,.feature-card:hover .feature-image img{transform:scale(1.045)}
.poster::after{content:"";position:absolute;inset:45% 0 0;background:linear-gradient(transparent,rgba(14,26,19,.66))}
.badge{position:absolute;z-index:1;top:10px;left:10px;padding:5px 8px;background:rgba(255,255,255,.94);border-radius:4px;color:var(--green-dark);font-size:10px;font-weight:800}
.poster-score{position:absolute;z-index:1;right:10px;bottom:9px;color:#fff;font-weight:800;font-size:13px}
.poster-info{padding:10px 1px 0}
.poster-info h3{overflow:hidden;margin:0;font-size:14px;white-space:nowrap;text-overflow:ellipsis}
.poster-info p{margin:3px 0 0;color:var(--muted);font-size:11px}
.feature-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:16px}
.feature-card{display:grid;grid-template-columns:42% 1fr;min-height:170px;overflow:hidden;background:#fff;border:1px solid var(--line);border-radius:var(--radius);transition:box-shadow .2s,transform .2s}
.feature-card:hover{transform:translateY(-3px);box-shadow:var(--shadow)}
.feature-image{overflow:hidden;background:var(--soft)}
.feature-image img{height:100%;min-height:170px;object-fit:cover;transition:transform .35s}
.feature-body{display:flex;flex-direction:column;justify-content:center;padding:16px}
.feature-type{color:var(--green);font-size:10px;font-weight:800}
.feature-body h3{margin:5px 0 4px;font-size:15px;line-height:1.4}
.feature-body p{margin:0;color:var(--muted);font-size:11px}
.feature-rating{margin-top:10px;color:#b76b22;font-size:12px;font-weight:800}
.category-layout{display:grid;grid-template-columns:1.1fr .9fr;gap:52px;align-items:start}
.category-list{display:grid;grid-template-columns:repeat(2,1fr);gap:0 28px}
.category-item{padding:19px 0;border-bottom:1px solid var(--line)}
.category-item h3{display:flex;justify-content:space-between;gap:12px;margin:0 0 6px;font-size:16px}
.category-item h3 span{color:var(--green);font-size:12px}
.category-item p{margin:0;color:var(--muted);font-size:12px}
.category-feature{position:relative;min-height:390px;overflow:hidden;background:#2a4939;border-radius:var(--radius)}
.category-feature img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover}
.category-feature::after{content:"";position:absolute;inset:35% 0 0;background:linear-gradient(transparent,rgba(11,29,19,.88))}
.category-feature-copy{position:absolute;z-index:1;right:24px;bottom:25px;left:24px;color:#fff}
.category-feature-copy span{color:var(--lime);font-size:11px;font-weight:800}
.category-feature-copy h3{margin:5px 0;font-size:24px}
.category-feature-copy p{margin:0;color:#e2e9e3;font-size:12px}
.collection-grid{display:grid;grid-template-columns:1.2fr .8fr .8fr;gap:15px}
.collection{position:relative;min-height:240px;overflow:hidden;background:#283d32;border-radius:var(--radius)}
.collection img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;transition:transform .35s}
.collection:hover img{transform:scale(1.04)}
.collection::after{content:"";position:absolute;inset:30% 0 0;background:linear-gradient(transparent,rgba(12,27,19,.86))}
.collection-copy{position:absolute;z-index:1;right:20px;bottom:19px;left:20px;color:#fff}
.collection-copy span{color:var(--lime);font-size:10px;font-weight:800}
.collection-copy h3{margin:4px 0;font-size:19px}
.collection-copy p{margin:0;color:#d9e3dc;font-size:12px}
.ranking-layout{display:grid;grid-template-columns:1fr .78fr;gap:52px}
.rank-list{margin:0;padding:0;list-style:none}
.rank-item{display:grid;grid-template-columns:38px minmax(0,1fr) 90px 54px;align-items:center;gap:12px;padding:13px 0;border-bottom:1px solid rgba(255,255,255,.13)}
.rank-no{color:#9daea2;font-size:14px;font-weight:800}
.rank-item:nth-child(-n+3) .rank-no{color:var(--lime);font-size:19px}
.rank-name{font-weight:700;font-size:14px}
.rank-kind{display:block;color:#aebcb2;font-size:10px}
.rank-heat{color:#d1ddd4;font-size:11px;text-align:right}
.rank-score{color:var(--lime);font-size:13px;font-weight:800;text-align:right}
.rank-callout{align-self:center;padding:29px;border:1px solid rgba(255,255,255,.18);background:rgba(255,255,255,.035)}
.rank-callout .big-number{color:var(--lime);font-size:49px;line-height:1;font-weight:850}
.rank-callout h3{margin:12px 0 8px;font-size:20px}
.rank-callout p{margin:0;color:#bac8bf;font-size:13px}
.rank-callout a{display:inline-flex;margin-top:20px;color:var(--lime);font-size:12px;font-weight:750}
.news-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:22px 17px}
.news-card{overflow:hidden;background:#fff;border:1px solid var(--line);border-radius:8px;transition:transform .2s,box-shadow .2s}
.news-card:hover{transform:translateY(-3px);box-shadow:var(--shadow)}
.news-image{height:155px;overflow:hidden;background:var(--soft)}
.news-image img{height:100%;object-fit:cover;transition:transform .3s}
.news-card:hover .news-image img{transform:scale(1.04)}
.news-body{padding:15px}
.news-date{color:var(--green);font-size:10px;font-weight:800}
.news-body h3{margin:6px 0 0;font-size:14px;line-height:1.55}
.source-panel{display:grid;grid-template-columns:.9fr 1.1fr;gap:54px;align-items:center}
.source-panel h2{margin:0;font-size:30px;line-height:1.35}
.source-panel p{margin:13px 0 0;color:var(--muted);font-size:14px}
.source-list{display:grid;grid-template-columns:1fr 1fr;gap:10px}
.source-item{display:flex;align-items:center;gap:12px;padding:16px;background:#fff;border:1px solid var(--line);border-radius:7px}
.source-icon{display:grid;place-items:center;flex:0 0 34px;height:34px;border-radius:50%;background:#e5f0e3;color:var(--green);font-size:15px;font-weight:900}
.source-item strong{display:block;font-size:12px}
.source-item span{display:block;color:var(--muted);font-size:10px}
.timeline{display:grid;grid-template-columns:repeat(4,1fr);position:relative;margin-top:28px}
.timeline::before{content:"";position:absolute;top:11px;right:9%;left:9%;height:1px;background:#ccd5ca}
.timeline-item{position:relative;padding:36px 18px 0 0}
.timeline-item::before{content:"";position:absolute;top:5px;left:0;width:13px;height:13px;border:3px solid var(--paper);border-radius:50%;background:var(--green);box-shadow:0 0 0 1px var(--green)}
.timeline-item strong{display:block;font-size:14px}
.timeline-item p{margin:6px 0 0;color:var(--muted);font-size:12px}
.quick-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:0 30px}
.quick-item{padding:20px 0;border-bottom:1px solid var(--line)}
.quick-item span{color:var(--coral);font-weight:850;font-size:11px}
.quick-item h3{margin:5px 0;font-size:15px}
.quick-item p{margin:0;color:var(--muted);font-size:12px}
.faq-wrap{display:grid;grid-template-columns:.7fr 1.3fr;gap:55px}
.faq-intro h2{margin:0;font-size:29px}
.faq-intro p{margin:10px 0 0;color:var(--muted);font-size:13px}
.faq-list details{padding:15px 0;border-bottom:1px solid var(--line)}
.faq-list summary{position:relative;padding-right:34px;cursor:pointer;list-style:none;font-weight:750;font-size:14px}
.faq-list summary::-webkit-details-marker{display:none}
.faq-list summary::after{content:"+";position:absolute;right:4px;top:-3px;color:var(--green);font-size:21px}
.faq-list details[open] summary::after{content:"−"}
.faq-list details p{margin:10px 30px 0 0;color:var(--muted);font-size:13px}
.closing-band{padding:30px 0;background:var(--lime)}
.closing-inner{display:flex;align-items:center;justify-content:space-between;gap:25px}
.closing-inner h2{margin:0;font-size:22px}
.closing-inner p{margin:4px 0 0;color:#465343;font-size:13px}
.closing-link{display:inline-flex;align-items:center;gap:10px;padding:13px 18px;border-radius:6px;background:var(--ink);color:white;font-size:13px;font-weight:750;white-space:nowrap}
.closing-link:hover{background:var(--green-dark)}
.site-footer{padding:48px 0 20px;background:#18241e;color:#fff}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:35px;padding-bottom:34px}
.footer-brand{display:flex;align-items:center;gap:10px;font-weight:800;font-size:16px}
.footer-brand .brand-mark{background:var(--lime);color:#1b3426}
.footer-about{max-width:320px;margin:13px 0 0;color:#afbbb1;font-size:12px}
.footer-col h3{margin:4px 0 12px;color:#dfe8df;font-size:12px}
.footer-col a{display:block;width:max-content;max-width:100%;margin:7px 0;color:#aebbb1;font-size:11px}
.footer-col a:hover{color:var(--lime)}
.footer-bottom{display:flex;justify-content:space-between;gap:15px;padding-top:17px;border-top:1px solid rgba(255,255,255,.13);color:#91a096;font-size:10px}
@media(max-width:1024px){
 .nav-wrap{gap:18px}.nav-links{gap:17px}.nav-links a{font-size:12px}.latest-grid{grid-template-columns:repeat(4,1fr)}
 .feature-grid{grid-template-columns:repeat(2,1fr)}.category-layout{gap:30px}.ranking-layout{gap:30px}
}
@media(max-width:768px){
 .container{width:min(100% - 36px,var(--max))}
 .nav-wrap{height:66px}.menu-toggle{display:grid;place-items:center;margin-left:auto}
 .nav-action{display:none}.nav-links{display:none;position:absolute;top:65px;left:0;right:0;margin:0;padding:10px 18px 18px;background:var(--paper);border-bottom:1px solid var(--line);box-shadow:0 12px 20px rgba(20,35,26,.08);flex-direction:column;align-items:stretch;gap:0}
 .nav-links.is-open{display:flex}.nav-links a{padding:12px 5px;border-bottom:1px solid var(--line);font-size:14px}
 .hero,.hero-inner{min-height:0}.hero::before{background-position:center}
 .hero::after{right:-45%;width:70%;opacity:.28}
 .hero-inner{grid-template-columns:1fr}.hero-copy{padding:62px 0 22px}.hero h1{font-size:39px}
 .hero-aside{min-height:0;justify-content:flex-start;padding:10px 0 40px}.hero-note{width:100%;max-width:450px}
 .metric-row{grid-template-columns:repeat(2,1fr);gap:18px 0}.metric:nth-child(2){border-right:0}.metric:nth-child(3){padding-left:0}
 .section{padding:58px 0}.section-head{align-items:flex-start;flex-direction:column;gap:12px}.section-title{font-size:27px}
 .latest-grid{grid-template-columns:repeat(3,1fr);gap:17px 12px}
 .category-layout,.ranking-layout,.source-panel,.faq-wrap{grid-template-columns:1fr;gap:28px}
 .category-feature{min-height:310px}.collection-grid{grid-template-columns:1fr 1fr}.collection:first-child{grid-column:1/-1}
 .news-grid{grid-template-columns:repeat(2,1fr)}.news-image{height:135px}
 .timeline{grid-template-columns:repeat(2,1fr);gap:15px}.timeline::before{display:none}
 .quick-grid{grid-template-columns:repeat(2,1fr);gap:0 22px}
 .footer-grid{grid-template-columns:1fr 1fr}.footer-brand-block{grid-column:1/-1}
}
@media(max-width:520px){
 body{font-size:14px}.container{width:calc(100% - 30px)}
 .brand{font-size:14px;gap:8px}.brand-mark{width:34px;height:34px}
 .hero-copy{padding-top:48px}.hero h1{font-size:33px}.hero-lead{font-size:14px}
 .hero-summary{font-size:13px}.hero-actions{gap:8px}.button{min-height:43px;padding:0 14px;font-size:12px}
 .hero-note{padding:19px}.hero-note strong{font-size:17px}
 .metric{padding:2px 12px}.metric strong{font-size:21px}.metric span{font-size:10px}
 .section{padding:48px 0}.section-title{font-size:24px}.section-desc{font-size:13px}
 .latest-grid{grid-template-columns:repeat(2,1fr);gap:17px 12px}
 .poster-info h3{font-size:13px}.poster-info p{font-size:10px}
 .feature-grid{grid-template-columns:1fr}.feature-card{min-height:150px;grid-template-columns:38% 1fr}
 .feature-image img{min-height:150px}.feature-body{padding:13px}
 .category-list{grid-template-columns:1fr}.category-feature{min-height:280px}
 .collection-grid{grid-template-columns:1fr}.collection:first-child{grid-column:auto}.collection{min-height:205px}
 .rank-item{grid-template-columns:27px minmax(0,1fr) 58px 40px;gap:8px;padding:12px 0}
 .rank-name{font-size:12px}.rank-heat{font-size:10px}.rank-score{font-size:12px}
 .rank-callout{padding:22px}.rank-callout .big-number{font-size:41px}
 .news-grid{grid-template-columns:1fr 1fr;gap:12px}
 .news-image{height:112px}.news-body{padding:11px}.news-body h3{font-size:12px}
 .source-list{grid-template-columns:1fr}.source-panel h2{font-size:25px}
 .timeline{grid-template-columns:1fr 1fr;gap:12px}.timeline-item{padding-right:8px}
 .quick-grid{grid-template-columns:1fr}.quick-item{padding:15px 0}
 .closing-inner{align-items:flex-start;flex-direction:column}.closing-inner h2{font-size:19px}
 .footer-grid{gap:25px 16px}.footer-bottom{flex-direction:column;gap:5px}
}
@media(prefers-reduced-motion:reduce){
 *,*::before,*::after{scroll-behavior:auto!important;transition:none!important}
}