/* roulang page: index */
:root{
  --ink:#252323;--muted:#747171;--paper:#f7f7f5;--white:#fff;--line:#e5e2df;
  --berry:#a52e51;--berry-dark:#7d203c;--coral:#e87569;--plum:#75445d;
  --sage:#dfe9e2;--soft:#f1e8e9;--night:#282326;--radius:5px;--shadow:0 8px 22px rgba(39,28,31,.08);
}
*{box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:88px}
body{margin:0;background:var(--paper);color:var(--ink);font-family:system-ui,-apple-system,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;font-size:16px;line-height:1.75}
a{color:inherit;text-decoration:none}
a:hover{color:var(--berry)}
img{display:block;max-width:100%}
button{font:inherit}
:focus-visible{outline:3px solid var(--coral);outline-offset:3px}
.container{width:min(1160px,calc(100% - 48px));margin-inline:auto}
.site-header{height:76px;background:rgba(255,255,255,.96);border-bottom:1px solid var(--line);position:sticky;top:0;z-index:20}
.nav-wrap{height:100%;display:flex;align-items:center;justify-content:space-between;gap:28px}
.brand{display:flex;align-items:center;gap:11px;min-width:260px}
.brand-mark{width:40px;height:40px;display:grid;place-items:center;background:var(--berry);color:#fff;font-weight:800;font-size:17px;border-radius:4px}
.brand-name{font-size:17px;font-weight:750;line-height:1.25;max-width:260px}
.nav-links{display:flex;align-items:center;gap:26px}
.nav-links a{font-size:14px;color:#514d4d;padding:8px 0;border-bottom:2px solid transparent;transition:color .18s,border-color .18s}
.nav-links a:hover,.nav-links a[aria-current="page"]{color:var(--berry);border-color:var(--berry)}
.menu-toggle{display:none;border:1px solid var(--line);background:white;color:var(--ink);width:42px;height:42px;border-radius:4px;cursor:pointer}
.hero{position:relative;overflow:hidden;background:#eee8e8;padding:48px 0 42px}
.hero:after{content:"";position:absolute;right:-8%;top:-45%;width:52%;height:190%;background:var(--coral);opacity:.14;transform:rotate(13deg);pointer-events:none}
.hero-grid{position:relative;z-index:1;display:grid;grid-template-columns:1.06fr .94fr;align-items:center;gap:52px}
.hero-kicker,.eyebrow{font-size:12px;letter-spacing:0;color:var(--berry);font-weight:800;text-transform:none}
.hero h1{font-size:44px;line-height:1.2;margin:12px 0 14px;max-width:620px;font-weight:820}
.hero h1 span{color:var(--berry)}
.hero-subtitle{font-size:20px;font-weight:650;margin:0 0 12px}
.hero-copy{max-width:610px;color:#595353;margin:0 0 21px}
.checkline{display:flex;flex-wrap:wrap;gap:9px 17px;margin:0 0 24px;padding:0;list-style:none;color:#4c4949;font-size:13px}
.checkline li:before{content:"✓";color:var(--berry);font-weight:900;margin-right:7px}
.button-row{display:flex;gap:11px;flex-wrap:wrap}
.button{min-height:46px;padding:11px 19px;border-radius:4px;background:var(--berry);color:white;font-size:14px;font-weight:700;transition:background .18s,transform .18s,box-shadow .18s}
.button:hover{background:var(--berry-dark);color:#fff;transform:translateY(-1px);box-shadow:0 5px 13px rgba(125,32,60,.18)}
.button.secondary{background:transparent;border:1px solid #a99599;color:var(--ink)}
.button.secondary:hover{background:white;border-color:var(--berry);color:var(--berry)}
.hero-art{position:relative;min-height:310px;display:grid;grid-template-columns:1.15fr .85fr;gap:12px;align-items:center}
.cover-main,.cover-side{position:relative;overflow:hidden;background:#55444a}
.cover-main{height:300px;clip-path:polygon(0 0,100% 0,91% 100%,0 100%)}
.cover-side{height:238px}
.cover-art{position:absolute;inset:0;background:
 linear-gradient(150deg,transparent 38%,rgba(27,21,24,.75) 100%),
 radial-gradient(ellipse at 68% 22%,#e5a897 0 8%,transparent 8.5%),
 radial-gradient(ellipse at 58% 33%,#805761 0 16%,transparent 16.5%),
 linear-gradient(120deg,#cfb4ad 0 28%,#825761 28% 53%,#413b40 53% 100%)}
.cover-side .cover-art{filter:hue-rotate(22deg);background:
 linear-gradient(155deg,transparent 35%,rgba(24,20,22,.78) 100%),
 radial-gradient(ellipse at 48% 30%,#e2b3a1 0 11%,transparent 11.5%),
 radial-gradient(ellipse at 53% 46%,#984a60 0 22%,transparent 22.5%),
 linear-gradient(135deg,#d0aaa2 0 35%,#633e4c 35% 68%,#343337 68%)}
.cover-caption{position:absolute;left:20px;right:28px;bottom:19px;color:white}
.cover-caption small{display:block;color:#f2d8d7;font-size:11px;margin-bottom:5px}
.cover-caption strong{font-size:20px;line-height:1.3;display:block}
.cover-badge{position:absolute;top:15px;left:15px;background:#fff;color:var(--berry);font-size:11px;font-weight:800;padding:4px 8px;border-radius:2px}
.cover-side .cover-caption{left:14px;bottom:14px}
.cover-side .cover-caption strong{font-size:16px}
.section{padding:62px 0;border-bottom:1px solid var(--line)}
.section.band{background:#eeece9}
.section.dark{background:var(--night);color:#fff;border:0}
.section-heading{display:flex;justify-content:space-between;align-items:end;gap:24px;margin-bottom:27px}
.section-heading h2{font-size:29px;line-height:1.3;margin:0;font-weight:780}
.section-heading p{margin:0;max-width:580px;color:var(--muted);font-size:14px}
.dark .section-heading p{color:#c6bfc1}
.section-heading .more{color:var(--berry);font-size:13px;font-weight:750;white-space:nowrap}
.pain-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:26px}
.pain-item{padding:5px 20px 5px 0;border-right:1px solid #d8d3d1}
.pain-item:last-child{border:0}
.pain-item strong{display:block;font-size:16px;margin-bottom:5px}
.pain-item p{font-size:14px;color:var(--muted);margin:0}
.search-strip{display:flex;align-items:center;gap:10px;flex-wrap:wrap}
.search-label{font-size:14px;font-weight:700;margin-right:5px}
.tag-link,.filter-chip{display:inline-flex;align-items:center;min-height:34px;padding:5px 12px;border:1px solid #d8c9cc;color:#594d50;background:#fff;border-radius:3px;font-size:13px;transition:all .18s}
.tag-link:hover,.filter-chip:hover{border-color:var(--berry);color:var(--berry);background:#fff8fa}
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:0;counter-reset:step}
.step{position:relative;padding:7px 22px 7px 0}
.step:not(:last-child):after{content:"";position:absolute;left:49px;right:12px;top:24px;border-top:1px solid #d5c4c8}
.step-number{position:relative;z-index:1;width:43px;height:43px;border-radius:50%;display:grid;place-items:center;background:var(--berry);color:#fff;font-weight:800;margin-bottom:13px}
.step h3{font-size:16px;margin:0 0 5px}
.step p{font-size:13px;color:var(--muted);margin:0;max-width:210px}
.metrics{display:grid;grid-template-columns:repeat(4,1fr);border-top:1px solid rgba(255,255,255,.2);border-bottom:1px solid rgba(255,255,255,.2)}
.metric{padding:23px 18px;border-right:1px solid rgba(255,255,255,.18)}
.metric:last-child{border:0}
.metric strong{display:block;font-size:26px;line-height:1.2;color:#f59a91}
.metric span{font-size:13px;color:#d6cdd0}
.note{font-size:12px;color:#c6bfc1;margin:14px 0 0}
.feedback-list{display:grid;grid-template-columns:repeat(3,1fr);gap:28px}
.feedback{border-left:3px solid var(--coral);padding:5px 0 5px 17px}
.feedback p{margin:0 0 9px;font-size:15px}
.feedback small{font-size:12px;color:var(--muted)}
.preferences{display:flex;flex-wrap:wrap;gap:10px}
.preference{padding:10px 14px;background:#fff;border:1px solid var(--line);font-size:14px;color:#51494b}
.preference b{color:var(--berry);margin-right:7px}
.poster-grid{display:grid;grid-template-columns:repeat(6,1fr);gap:21px 15px}
.poster-card{min-width:0}
.poster-link{display:block}
.poster-image{position:relative;aspect-ratio:3/4;overflow:hidden;background:#ddd}
.poster-image:before{content:"";position:absolute;inset:0;background:
 linear-gradient(180deg,transparent 38%,rgba(23,19,21,.70)),
 radial-gradient(ellipse at 54% 28%,var(--tone,#d5a89c) 0 12%,transparent 12.5%),
 radial-gradient(ellipse at 49% 47%,var(--tone2,#8c5362) 0 24%,transparent 24.5%),
 linear-gradient(135deg,var(--bg1,#c9a9a1) 0 35%,var(--bg2,#62444d) 35% 66%,#393639 66%)}
.poster-card:nth-child(4n+2) .poster-image:before{--tone:#e5b9a2;--tone2:#755c61;--bg1:#b5b7aa;--bg2:#754b55}
.poster-card:nth-child(4n+3) .poster-image:before{--tone:#d5a18f;--tone2:#a5656d;--bg1:#d2b8a4;--bg2:#5c4451}
.poster-card:nth-child(4n) .poster-image:before{--tone:#dfb59f;--tone2:#76505a;--bg1:#b5a5a4;--bg2:#51454b}
.poster-image:after{content:attr(data-code);position:absolute;top:10px;left:10px;color:#fff;font-weight:800;font-size:12px;opacity:.85}
.poster-link:hover .poster-image{box-shadow:var(--shadow)}
.poster-meta{display:flex;justify-content:space-between;gap:6px;align-items:center;margin-top:9px}
.badge{display:inline-block;padding:2px 7px;background:#f1e2e5;color:#8e2948;font-size:10px;font-weight:750;line-height:1.7;border-radius:2px;white-space:nowrap}
.badge.neutral{background:#eeece8;color:#5e5856}
.rating{font-size:11px;color:#6f6263;white-space:nowrap}
.poster-card h3{font-size:14px;line-height:1.4;margin:5px 0 0;font-weight:720;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.more-row{display:flex;justify-content:flex-end;margin-top:20px}
.more-row a{font-size:13px;font-weight:750;color:var(--berry)}
.feature-layout{display:grid;grid-template-columns:1.15fr .85fr;gap:34px}
.feature-lead{position:relative;min-height:390px;background:#56454b;overflow:hidden}
.feature-lead .cover-art{background:
 linear-gradient(180deg,transparent 35%,rgba(25,20,23,.83)),
 radial-gradient(ellipse at 68% 28%,#e6b5a3 0 12%,transparent 12.5%),
 radial-gradient(ellipse at 54% 44%,#85505e 0 24%,transparent 24.5%),
 linear-gradient(135deg,#d1b7a9 0 30%,#895766 30% 62%,#38363a 62%)}
.feature-lead .cover-caption strong{font-size:26px}
.feature-list{display:flex;flex-direction:column;justify-content:space-between}
.feature-row{display:grid;grid-template-columns:92px 1fr;gap:15px;padding:12px 0;border-bottom:1px solid var(--line)}
.feature-thumb{aspect-ratio:1;background:
 linear-gradient(150deg,transparent 42%,rgba(20,17,19,.65)),
 radial-gradient(ellipse at 50% 32%,#dfb19e 0 15%,transparent 15.5%),
 linear-gradient(140deg,#c4ada3 0 38%,#754b57 38% 70%,#343236 70%)}
.feature-row:nth-child(even) .feature-thumb{filter:hue-rotate(18deg)}
.feature-row h3{font-size:15px;margin:0 0 4px}
.feature-row p{font-size:12px;color:var(--muted);line-height:1.55;margin:0 0 6px}
.feature-row .badge{margin-right:4px}
.channel-list{display:grid;grid-template-columns:repeat(5,1fr);gap:0;border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.channel{padding:20px 17px 20px 0;margin-right:17px;border-right:1px solid var(--line)}
.channel:last-child{border:0;margin:0}
.channel h3{font-size:16px;margin:0 0 7px}
.channel p{font-size:13px;line-height:1.65;color:var(--muted);margin:0}
.rank-list{list-style:none;margin:0;padding:0}
.rank-item{display:grid;grid-template-columns:46px minmax(160px,1fr) 130px 70px 100px;align-items:center;gap:14px;padding:12px 17px;border-bottom:1px solid rgba(255,255,255,.12)}
.rank-item:nth-child(1){background:#3a3034}
.rank-no{font-size:20px;font-weight:800;color:#d28a96}
.rank-item:nth-child(-n+3) .rank-no{color:#f58b81}
.rank-title{font-size:14px;font-weight:700}
.rank-cat{font-size:12px;color:#d1c6c9}
.rank-rating{font-size:13px;color:#f2c8bf}
.rank-heat{font-size:12px;color:#e6a0a0;text-align:right}
.news-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:0 25px}
.news-item{display:grid;grid-template-columns:92px 1fr;gap:14px;padding:17px 0;border-bottom:1px solid var(--line)}
.news-thumb{aspect-ratio:1.2;background:
 linear-gradient(150deg,transparent 38%,rgba(25,20,21,.55)),
 radial-gradient(ellipse at 54% 31%,#e1b4a1 0 13%,transparent 13.5%),
 linear-gradient(125deg,#c3b5a9 0 35%,#8b5a63 35% 70%,#494148 70%)}
.news-item:nth-child(3n+2) .news-thumb{filter:hue-rotate(28deg)}
.news-item h3{font-size:14px;line-height:1.4;margin:0 0 5px}
.news-item p{font-size:12px;color:var(--muted);line-height:1.55;margin:0 0 5px}
.news-item time{font-size:11px;color:#8c8483}
.index-strip{display:flex;align-items:center;gap:12px;flex-wrap:wrap}
.index-label{font-size:13px;font-weight:750}
.index-value{padding:7px 11px;background:#fff;border:1px solid var(--line);font-size:12px;color:#5b5554}
.topic-bar{display:flex;align-items:center;gap:8px;flex-wrap:wrap}
.topic-bar span{font-size:13px;font-weight:700;margin-right:6px}
.topic-bar a{padding:6px 11px;background:#fff;border-bottom:2px solid #d59aa7;color:#5b4b4e;font-size:12px}
.topic-bar a:hover{color:var(--berry);border-color:var(--berry)}
.legend{display:flex;align-items:center;gap:10px 18px;flex-wrap:wrap;font-size:12px;color:var(--muted)}
.legend strong{color:var(--ink)}
.faq-list{border-top:1px solid var(--line)}
.faq-item{border-bottom:1px solid var(--line)}
.faq-item summary{cursor:pointer;list-style:none;padding:17px 32px 17px 0;font-weight:700;font-size:15px;position:relative}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary:after{content:"＋";position:absolute;right:2px;top:15px;color:var(--berry);font-size:20px}
.faq-item[open] summary:after{content:"−"}
.faq-item p{max-width:850px;color:var(--muted);font-size:14px;margin:0;padding:0 30px 18px 0}
.cta-band{background:var(--berry);color:#fff;padding:32px 0}
.cta-inner{display:flex;align-items:center;justify-content:space-between;gap:25px}
.cta-inner h2{font-size:23px;margin:0 0 4px}
.cta-inner p{margin:0;color:#f2dce1;font-size:14px}
.cta-band .button{background:#fff;color:var(--berry);white-space:nowrap}
.cta-band .button:hover{background:#f8e9ec}
.site-footer{background:#282326;color:#eee8e9;padding:42px 0 18px}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:35px;padding-bottom:30px}
.footer-brand{font-size:18px;font-weight:780;margin:0 0 10px}
.footer-copy{font-size:13px;line-height:1.75;color:#c2b9bb;max-width:330px;margin:0}
.footer-col h3{font-size:13px;color:#f1a4a2;margin:1px 0 11px}
.footer-col a,.footer-col span{display:block;font-size:12px;color:#c9c0c1;margin:5px 0}
.footer-col a:hover{color:#fff}
.footer-bottom{border-top:1px solid rgba(255,255,255,.14);padding-top:14px;display:flex;justify-content:space-between;gap:20px;font-size:11px;color:#b8adaf}
@media(max-width:1024px){
 .nav-links{gap:15px}.brand{min-width:230px}.brand-name{font-size:15px}
 .poster-grid{grid-template-columns:repeat(4,1fr)}
 .channel-list{grid-template-columns:repeat(3,1fr);row-gap:15px}
 .channel:nth-child(3){border-right:0}
 .feature-layout{gap:22px}
}
@media(max-width:768px){
 .container{width:min(100% - 34px,620px)}
 .site-header{height:68px}.brand{min-width:0}.brand-name{max-width:230px;font-size:14px}
 .menu-toggle{display:block;flex:none}
 .nav-wrap{position:relative}
 .nav-links{display:none;position:absolute;top:67px;left:-17px;right:-17px;padding:10px 17px 16px;background:#fff;border-bottom:1px solid var(--line);box-shadow:0 12px 18px rgba(33,25,27,.08);align-items:stretch;gap:0}
 .nav-links.is-open{display:flex;flex-direction:column}
 .nav-links a{padding:10px 4px;border-bottom:1px solid #f0eded}
 .hero{padding:37px 0 30px}
 .hero-grid{grid-template-columns:1fr;gap:22px}
 .hero h1{font-size:36px}
 .hero-art{min-height:230px;grid-template-columns:1.15fr .85fr;max-width:560px}
 .cover-main{height:235px}.cover-side{height:190px}
 .section{padding:45px 0}
 .section-heading{align-items:flex-start;flex-direction:column;gap:8px;margin-bottom:22px}
 .section-heading h2{font-size:25px}
 .pain-grid{grid-template-columns:1fr;gap:15px}
 .pain-item{border-right:0;border-bottom:1px solid var(--line);padding:0 0 14px}
 .pain-item:last-child{border-bottom:0}
 .steps{grid-template-columns:repeat(2,1fr);gap:24px 12px}
 .step:not(:last-child):after{display:none}
 .metrics{grid-template-columns:repeat(2,1fr)}
 .metric:nth-child(2){border-right:0}
 .metric:nth-child(-n+2){border-bottom:1px solid rgba(255,255,255,.18)}
 .feedback-list{grid-template-columns:1fr;gap:17px}
 .poster-grid{grid-template-columns:repeat(3,1fr);gap:18px 12px}
 .feature-layout{grid-template-columns:1fr}
 .feature-lead{min-height:300px}
 .feature-list{display:grid;grid-template-columns:repeat(2,1fr);gap:0 16px}
 .channel-list{grid-template-columns:repeat(2,1fr)}
 .channel:nth-child(3){border-right:1px solid var(--line)}
 .channel:nth-child(even){border-right:0}
 .rank-item{grid-template-columns:35px minmax(0,1fr) 75px 78px;gap:9px;padding:11px 8px}
 .rank-cat{display:none}
 .news-grid{grid-template-columns:repeat(2,1fr);gap:0 18px}
 .footer-grid{grid-template-columns:repeat(2,1fr);gap:25px}
}
@media(max-width:520px){
 body{font-size:15px}
 .container{width:calc(100% - 30px)}
 .brand-mark{width:36px;height:36px;font-size:15px}
 .brand-name{max-width:215px;font-size:13px}
 .hero h1{font-size:31px}
 .hero-subtitle{font-size:17px}
 .hero-art{min-height:185px;gap:8px}
 .cover-main{height:195px}.cover-side{height:155px}
 .cover-caption{left:12px;bottom:12px}.cover-caption strong{font-size:16px}
 .cover-side .cover-caption strong{font-size:13px}
 .cover-badge{top:9px;left:9px}
 .section{padding:38px 0}
 .section-heading h2{font-size:22px}
 .button-row{width:100%}.button-row .button{flex:1;text-align:center;padding-inline:10px}
 .steps{grid-template-columns:1fr 1fr}
 .step{padding-right:6px}
 .metric{padding:18px 12px}
 .metric strong{font-size:23px}
 .poster-grid{grid-template-columns:repeat(2,1fr);gap:18px 12px}
 .poster-card h3{font-size:13px}
 .feature-lead{min-height:250px}
 .feature-list{grid-template-columns:1fr}
 .feature-row{grid-template-columns:78px 1fr}
 .channel-list{grid-template-columns:1fr 1fr}
 .channel{padding:15px 10px 15px 0;margin-right:10px}
 .rank-item{grid-template-columns:29px minmax(0,1fr) 58px;gap:7px;padding:10px 3px}
 .rank-rating{display:none}
 .rank-heat{font-size:11px}
 .news-grid{grid-template-columns:1fr}
 .news-item{grid-template-columns:84px 1fr}
 .cta-inner{align-items:flex-start;flex-direction:column}
 .cta-inner h2{font-size:20px}
 .footer-grid{gap:23px 16px}
 .footer-brand{font-size:15px}
 .footer-bottom{flex-direction:column;gap:4px}
}