/* roulang page: index */
:root{--ink:#172026;--muted:#68747a;--paper:#f6f5f1;--white:#fff;--coral:#e66b52;--coral-dark:#bd4d39;--mint:#b8ddd3;--line:#dfe4e1;--radius:18px;--shadow:0 18px 50px rgba(23,32,38,.10)}
        *{box-sizing:border-box}
        html{scroll-behavior:smooth}
        body{margin:0;background:var(--paper);color:var(--ink);font-family:"Noto Sans SC","Microsoft YaHei",sans-serif;line-height:1.7}
        a{color:inherit;text-decoration:none}
        img{display:block;width:100%;object-fit:cover}
        button,input{font:inherit}
        button{cursor:pointer}
        .container{width:min(1180px,calc(100% - 40px));margin:auto}
        .site-header{position:sticky;top:0;z-index:30;background:rgba(246,245,241,.92);backdrop-filter:blur(16px);border-bottom:1px solid rgba(223,228,225,.85)}
        .nav-wrap{height:76px;display:flex;align-items:center;justify-content:space-between;gap:28px}
        .brand{display:flex;align-items:center;gap:12px;font-size:17px;font-weight:800;white-space:nowrap}
        .brand-mark{width:38px;height:38px;border-radius:12px;background:var(--coral);color:#fff;display:grid;place-items:center;font-weight:800;box-shadow:0 8px 18px rgba(230,107,82,.24)}
        .nav-links{display:flex;align-items:center;gap:8px}
        .nav-links a{padding:9px 14px;border-radius:10px;color:#59656a;font-size:14px;transition:.2s}
        .nav-links a:hover,.nav-links a.active{background:#e8eeeb;color:var(--ink)}
        .nav-cta{background:var(--ink)!important;color:#fff!important;padding:10px 17px!important}
        .nav-cta:hover{background:var(--coral)!important}
        .menu-btn{display:none;border:1px solid var(--line);background:#fff;border-radius:10px;width:42px;height:42px}
        .hero{padding:54px 0 32px}
        .hero-grid{display:grid;grid-template-columns:1.35fr .65fr;grid-template-rows:auto auto;gap:16px}
        .hero-main{grid-row:span 2;min-height:480px;padding:54px;border-radius:26px;background:var(--ink);color:#fff;position:relative;overflow:hidden;display:flex;flex-direction:column;justify-content:flex-end}
        .hero-main:before{content:"";position:absolute;inset:0;background:linear-gradient(135deg,rgba(23,32,38,.2),rgba(23,32,38,.8)),url("https://images.unsplash.com/photo-1485846234645-a62644f84728?auto=format&fit=crop&w=1400&q=85") center/cover;opacity:.52}
        .hero-content{position:relative;z-index:1;max-width:680px}
        .eyebrow{display:inline-flex;align-items:center;gap:8px;font-size:12px;letter-spacing:.08em;text-transform:uppercase;color:var(--coral);font-weight:700}
        .eyebrow:before{content:"";width:24px;height:2px;background:currentColor}
        h1{font-size:clamp(38px,5vw,68px);line-height:1.12;letter-spacing:0;margin:18px 0 16px;max-width:650px}
        .hero-main h1 span{color:var(--mint)}
        .hero-copy{font-size:16px;color:rgba(255,255,255,.78);max-width:620px;margin:0}
        .hero-actions{display:flex;gap:12px;flex-wrap:wrap;margin-top:28px}
        .btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;border:1px solid transparent;border-radius:11px;padding:12px 18px;font-weight:700;font-size:14px;transition:.2s}
        .btn-primary{background:var(--coral);color:#fff}.btn-primary:hover{background:#f08065;transform:translateY(-2px)}
        .btn-light{background:#fff;color:var(--ink)}.btn-light:hover{background:var(--mint);transform:translateY(-2px)}
        .btn-outline{border-color:var(--line);background:#fff}.btn-outline:hover{border-color:var(--coral);color:var(--coral)}
        .hero-tile{border-radius:22px;padding:25px;background:#fff;border:1px solid var(--line);display:flex;flex-direction:column;justify-content:space-between;min-height:230px}
        .hero-tile.mint{background:var(--mint);border-color:transparent}.hero-tile.dark{background:#29383d;color:#fff;border-color:transparent}
        .tile-icon{font-size:28px}.tile-number{font-size:42px;font-weight:800;line-height:1}.tile-label{font-size:14px;color:var(--muted)}.dark .tile-label{color:#b5c3c6}
        .section{padding:78px 0}.section.alt{background:#eaf0ed}.section.dark-band{background:var(--ink);color:#fff}
        .section-head{display:flex;justify-content:space-between;align-items:end;gap:24px;margin-bottom:28px}
        .section-kicker{font-size:12px;color:var(--coral);font-weight:800;letter-spacing:.1em}
        h2{font-size:clamp(26px,3vw,40px);line-height:1.2;letter-spacing:0;margin:7px 0 0}
        .section-lead{max-width:560px;color:var(--muted);font-size:15px;margin:0}
        .dark-band .section-lead{color:#adbbbe}
        .text-link{font-weight:700;color:var(--coral);font-size:14px;white-space:nowrap}
        .content-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}
        .content-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;transition:.25s}
        .content-card:hover{transform:translateY(-5px);box-shadow:var(--shadow);border-color:transparent}
        .card-image{height:190px;position:relative}.card-image img{height:100%}
        .card-image:after{content:"";position:absolute;inset:0;background:linear-gradient(transparent 55%,rgba(0,0,0,.5))}
        .badge{position:absolute;z-index:1;top:12px;left:12px;background:var(--coral);color:#fff;border-radius:7px;padding:3px 8px;font-size:11px;font-weight:700}
        .card-body{padding:16px}.card-title{font-size:16px;font-weight:700;margin:0 0 7px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.card-meta{display:flex;justify-content:space-between;color:var(--muted);font-size:12px}
        .score{color:#c55a43;font-weight:800}
        .three-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
        .feature{padding:26px;background:#fff;border:1px solid var(--line);border-radius:var(--radius);min-height:190px}
        .feature-number{color:var(--coral);font-weight:800;font-size:13px}.feature h3{font-size:20px;margin:15px 0 8px}.feature p{color:var(--muted);font-size:14px;margin:0}
        .split{display:grid;grid-template-columns:.8fr 1.2fr;gap:46px;align-items:center}
        .visual-panel{min-height:360px;border-radius:24px;background:url("https://images.unsplash.com/photo-1517604931442-7e0c8ed2963c?auto=format&fit=crop&w=1100&q=85") center/cover;position:relative;overflow:hidden}
        .visual-panel:after{content:"";position:absolute;inset:0;background:linear-gradient(135deg,rgba(23,32,38,.12),rgba(23,32,38,.72))}
        .visual-label{position:absolute;z-index:1;left:24px;bottom:24px;color:#fff;font-size:22px;font-weight:700}
        .steps{display:grid;gap:0;margin-top:24px}.step{display:grid;grid-template-columns:42px 1fr;gap:16px;padding:17px 0;border-bottom:1px solid var(--line)}.step:last-child{border:0}.step-no{width:32px;height:32px;background:var(--coral);color:#fff;border-radius:50%;display:grid;place-items:center;font-weight:800;font-size:13px}.step h3{margin:0;font-size:16px}.step p{margin:3px 0 0;color:var(--muted);font-size:13px}
        .feature-band{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
        .mini-panel{padding:22px;border-radius:var(--radius);background:#f7faf8;border:1px solid var(--line)}.mini-panel strong{font-size:30px;display:block}.mini-panel span{font-size:13px;color:var(--muted)}
        .topic-grid{display:grid;grid-template-columns:repeat(5,1fr);gap:12px}.topic{padding:22px 17px;border-radius:15px;background:#fff;border:1px solid var(--line);min-height:150px;transition:.2s}.topic:hover{background:var(--coral);color:#fff;transform:translateY(-3px)}.topic h3{font-size:16px;margin:0 0 8px}.topic p{font-size:12px;color:var(--muted);margin:0}.topic:hover p{color:rgba(255,255,255,.8)}
        .rank-layout{display:grid;grid-template-columns:1.2fr .8fr;gap:26px}.rank-list{background:#fff;border-radius:var(--radius);border:1px solid var(--line);overflow:hidden}.rank-item{display:grid;grid-template-columns:42px 1fr auto auto;gap:14px;align-items:center;padding:15px 20px;border-bottom:1px solid #edf0ee}.rank-item:last-child{border:0}.rank-num{font-size:20px;font-weight:800;color:#b7c0bd}.rank-item:nth-child(-n+3) .rank-num{color:var(--coral)}.rank-name{font-weight:700}.rank-tag{font-size:11px;color:var(--muted);background:#edf2ef;padding:4px 8px;border-radius:6px}.rank-hot{font-size:12px;color:var(--coral);font-weight:700}
        .news-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}.news-card{display:grid;grid-template-columns:110px 1fr;gap:15px;padding:14px;background:#fff;border:1px solid var(--line);border-radius:15px}.news-card img{height:82px;border-radius:10px}.news-card h3{font-size:14px;line-height:1.45;margin:0 0 8px}.news-card time{font-size:11px;color:var(--muted)}
        .subscribe{background:var(--coral);border-radius:24px;padding:32px 38px;color:#fff;display:flex;align-items:center;justify-content:space-between;gap:25px}.subscribe h2{margin:0;font-size:28px}.subscribe p{margin:7px 0 0;color:rgba(255,255,255,.8);font-size:14px}.subscribe-form{display:flex;gap:8px}.subscribe input{border:0;border-radius:10px;padding:12px 14px;width:235px;outline:0}.subscribe .btn{background:var(--ink)}
        .faq-grid{display:grid;grid-template-columns:1fr 1fr;gap:14px}.faq{background:#fff;border:1px solid var(--line);border-radius:14px;padding:20px}.faq h3{font-size:16px;margin:0 0 8px}.faq p{font-size:13px;color:var(--muted);margin:0}
        footer{background:#121b1f;color:#dce5e3;padding:58px 0 25px}.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:35px}.footer-brand p{color:#94a6a5;font-size:13px;max-width:300px}.footer-title{font-size:14px;font-weight:700;margin:0 0 14px;color:#fff}.footer-links{display:grid;gap:8px}.footer-links a{font-size:13px;color:#94a6a5;transition:.2s}.footer-links a:hover{color:var(--mint)}.copyright{margin-top:40px;padding-top:20px;border-top:1px solid #2e3b3e;color:#849394;font-size:12px;display:flex;justify-content:space-between;gap:15px}
        :focus-visible{outline:3px solid rgba(230,107,82,.4);outline-offset:3px}
        @media(max-width:1024px){.content-grid{grid-template-columns:repeat(3,1fr)}.topic-grid{grid-template-columns:repeat(3,1fr)}.hero-main{padding:40px}.rank-layout{grid-template-columns:1fr}.footer-grid{grid-template-columns:1.3fr 1fr 1fr}}
        @media(max-width:768px){.nav-links{display:none;position:absolute;top:76px;left:20px;right:20px;background:#fff;border:1px solid var(--line);border-radius:14px;padding:10px;box-shadow:var(--shadow);flex-direction:column;align-items:stretch}.nav-links.open{display:flex}.nav-links a{padding:12px}.menu-btn{display:block}.hero-grid{grid-template-columns:1fr}.hero-main{grid-row:auto;min-height:500px}.hero-tile{min-height:160px}.section{padding:58px 0}.content-grid{grid-template-columns:repeat(2,1fr)}.three-grid,.feature-band{grid-template-columns:1fr}.split{grid-template-columns:1fr;gap:25px}.visual-panel{min-height:260px}.news-grid{grid-template-columns:1fr 1fr}.subscribe{display:block}.subscribe-form{margin-top:20px}.footer-grid{grid-template-columns:1fr 1fr}}
        @media(max-width:520px){.container{width:min(100% - 28px,1180px)}.brand{font-size:14px}.brand-mark{width:34px;height:34px}.hero{padding-top:25px}.hero-main{padding:28px;min-height:520px}h1{font-size:39px}.section-head{display:block}.section-lead{margin-top:12px}.text-link{display:inline-block;margin-top:16px}.content-grid,.topic-grid,.news-grid,.faq-grid{grid-template-columns:1fr}.card-image{height:210px}.rank-item{grid-template-columns:34px 1fr auto}.rank-tag{display:none}.subscribe{padding:26px 22px}.subscribe h2{font-size:24px}.subscribe-form{display:block}.subscribe input{width:100%;margin-bottom:9px}.subscribe .btn{width:100%}.footer-grid{grid-template-columns:1fr 1fr}.copyright{display:block}.copyright span{display:block;margin-top:8px}}

/* roulang page: category1 */
:root{--ink:#172026;--muted:#68747a;--paper:#f6f5f1;--white:#fff;--coral:#e66b52;--coral-dark:#bd4d39;--mint:#b8ddd3;--line:#dfe4e1;--radius:18px;--shadow:0 18px 50px rgba(23,32,38,.10)}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;background:var(--paper);color:var(--ink);font-family:"Noto Sans SC","Microsoft YaHei",sans-serif;line-height:1.7}
a{color:inherit;text-decoration:none}
img{display:block;width:100%;object-fit:cover}
button,input{font:inherit}
button{cursor:pointer}
.container{width:min(1180px,calc(100% - 40px));margin:auto}
.site-header{position:sticky;top:0;z-index:30;background:rgba(246,245,241,.94);backdrop-filter:blur(16px);border-bottom:1px solid rgba(223,228,225,.85)}
.nav-wrap{height:76px;display:flex;align-items:center;justify-content:space-between;gap:28px}
.brand{display:flex;align-items:center;gap:12px;font-size:17px;font-weight:800;white-space:nowrap}
.brand-mark{width:38px;height:38px;border-radius:12px;background:var(--coral);color:#fff;display:grid;place-items:center;font-weight:800;box-shadow:0 8px 18px rgba(230,107,82,.24)}
.nav-links{display:flex;align-items:center;gap:8px}
.nav-links a{padding:9px 14px;border-radius:10px;color:#59656a;font-size:14px;transition:.2s}
.nav-links a:hover,.nav-links a.active{background:#e8eeeb;color:var(--ink)}
.nav-cta{background:var(--ink)!important;color:#fff!important;padding:10px 17px!important}
.nav-cta:hover{background:var(--coral)!important}
.menu-btn{display:none;border:1px solid var(--line);background:#fff;border-radius:10px;width:42px;height:42px}
.hero{padding:54px 0 42px}
.hero-grid{display:grid;grid-template-columns:1.18fr .82fr;gap:18px;align-items:stretch}
.hero-main{min-height:420px;padding:52px;border-radius:26px;background:var(--ink);color:#fff;position:relative;overflow:hidden;display:flex;align-items:flex-end}
.hero-main:before{content:"";position:absolute;inset:0;background:linear-gradient(135deg,rgba(23,32,38,.15),rgba(23,32,38,.84)),url("https://images.unsplash.com/photo-1485846234645-a62644f84728?auto=format&fit=crop&w=1400&q=85") center/cover;opacity:.58}
.hero-content{position:relative;z-index:1;max-width:650px}
.eyebrow,.section-kicker{font-size:12px;letter-spacing:.1em;font-weight:800;color:var(--coral)}
.eyebrow:before{content:"";display:inline-block;width:24px;height:2px;background:currentColor;vertical-align:middle;margin-right:8px}
.hero-main h1{font-size:clamp(34px,5vw,64px);line-height:1.15;letter-spacing:0;margin:16px 0}
.hero-main h1 span{color:var(--mint)}
.hero-copy{font-size:16px;color:rgba(255,255,255,.78);max-width:590px;margin:0}
.hero-actions{display:flex;gap:12px;flex-wrap:wrap;margin-top:28px}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;border:1px solid transparent;border-radius:11px;padding:12px 18px;font-weight:700;font-size:14px;transition:.2s}
.btn-primary{background:var(--coral);color:#fff}
.btn-primary:hover{background:#f08065;transform:translateY(-2px)}
.btn-light{background:#fff;color:var(--ink)}
.btn-light:hover{background:var(--mint);transform:translateY(-2px)}
.btn-outline{border-color:var(--line);background:#fff}
.btn-outline:hover{border-color:var(--coral);color:var(--coral)}
.hero-side{display:grid;grid-template-columns:1fr 1fr;gap:14px}
.hero-tile{border-radius:22px;padding:24px;background:#fff;border:1px solid var(--line);display:flex;flex-direction:column;justify-content:space-between;min-height:203px}
.hero-tile.mint{background:var(--mint);border-color:transparent}
.hero-tile.dark{background:#29383d;color:#fff;border-color:transparent}
.tile-label{font-size:12px;font-weight:800;color:var(--coral)}
.hero-tile h2{font-size:21px;line-height:1.35;margin:15px 0 8px}
.hero-tile p{font-size:13px;color:var(--muted);margin:0}
.hero-tile.dark p{color:#c3cece}
.section{padding:78px 0}
.section.alt{background:#eaf0ed}
.section.dark-band{background:var(--ink);color:#fff}
.section-head{display:flex;justify-content:space-between;align-items:end;gap:24px;margin-bottom:28px}
.section-head h2{font-size:32px;line-height:1.25;margin:8px 0 0}
.section-lead{max-width:560px;color:var(--muted);font-size:15px;margin:0}
.dark-band .section-lead{color:#adbbbe}
.topic-layout{display:grid;grid-template-columns:1.05fr 1.95fr;gap:20px;align-items:stretch}
.topic-intro{background:var(--ink);color:#fff;border-radius:22px;padding:32px;display:flex;flex-direction:column;justify-content:space-between}
.topic-intro h2{font-size:30px;line-height:1.3;margin:12px 0}
.topic-intro p{color:#c0cccd;margin:0;font-size:14px}
.topic-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:14px}
.topic-card{background:#fff;border:1px solid var(--line);border-radius:16px;padding:23px;min-height:180px;transition:.2s}
.topic-card:hover{transform:translateY(-4px);box-shadow:var(--shadow);border-color:transparent}
.topic-icon{width:38px;height:38px;border-radius:11px;background:#e9f0ec;color:var(--coral);display:grid;place-items:center;font-weight:800}
.topic-card h3{font-size:18px;margin:14px 0 7px}
.topic-card p{font-size:13px;color:var(--muted);margin:0}
.topic-card a{display:inline-block;color:var(--coral);font-size:13px;font-weight:700;margin-top:14px}
.feature-band{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
.feature{padding:27px;background:#fff;border:1px solid var(--line);border-radius:var(--radius);min-height:190px}
.feature-number{color:var(--coral);font-weight:800;font-size:13px}
.feature h3{font-size:20px;margin:15px 0 8px}
.feature p{color:var(--muted);font-size:14px;margin:0}
.detail-grid{display:grid;grid-template-columns:1fr 1fr;gap:20px}
.detail-panel{padding:30px;background:#fff;border:1px solid var(--line);border-radius:20px}
.detail-panel h3{font-size:22px;margin:0 0 10px}
.detail-panel>p{font-size:14px;color:var(--muted);margin:0 0 22px}
.detail-list{display:grid;gap:12px}
.detail-item{display:flex;gap:13px;align-items:flex-start;padding-top:12px;border-top:1px solid #edf0ee}
.detail-item:first-child{border-top:0;padding-top:0}
.detail-dot{flex:0 0 9px;width:9px;height:9px;border-radius:50%;background:var(--coral);margin-top:9px}
.detail-item strong{display:block;font-size:15px}
.detail-item span{display:block;color:var(--muted);font-size:13px;margin-top:3px}
.quote-grid{display:grid;grid-template-columns:1.2fr .8fr;gap:18px}
.quote-box{padding:34px;border-radius:22px;background:var(--mint);min-height:240px;display:flex;flex-direction:column;justify-content:space-between}
.quote-box blockquote{font-size:25px;line-height:1.45;font-weight:700;margin:0;max-width:650px}
.quote-box cite{font-size:13px;color:#4e6b68;font-style:normal}
.metric-panel{background:#fff;border:1px solid var(--line);border-radius:22px;padding:28px;display:grid;grid-template-columns:1fr 1fr;gap:15px}
.metric{padding:15px 0;border-bottom:1px solid #edf0ee}
.metric:nth-last-child(-n+2){border-bottom:0}
.metric strong{display:block;font-size:27px;color:var(--coral)}
.metric span{font-size:12px;color:var(--muted)}
.news-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.news-card{display:grid;grid-template-columns:110px 1fr;gap:15px;padding:14px;background:#fff;border:1px solid var(--line);border-radius:15px;transition:.2s}
.news-card:hover{transform:translateY(-3px);box-shadow:var(--shadow)}
.news-card img{height:82px;border-radius:10px}
.news-card h3{font-size:14px;line-height:1.45;margin:0 0 8px}
.news-card time{font-size:11px;color:var(--muted)}
.faq-grid{display:grid;grid-template-columns:1fr 1fr;gap:14px}
.faq{background:#fff;border:1px solid var(--line);border-radius:14px;padding:20px}
.faq h3{font-size:16px;margin:0 0 8px}
.faq p{font-size:13px;color:var(--muted);margin:0}
.cta-band{padding:44px 0;background:var(--coral);color:#fff}
.cta-inner{display:flex;align-items:center;justify-content:space-between;gap:25px}
.cta-inner h2{font-size:28px;margin:0 0 7px}
.cta-inner p{margin:0;color:rgba(255,255,255,.8);font-size:14px}
footer{background:#121b1f;color:#dce5e3;padding:58px 0 25px}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:35px}
.footer-brand p{color:#94a6a5;font-size:13px;max-width:300px}
.footer-title{font-size:14px;font-weight:700;margin:0 0 14px;color:#fff}
.footer-links{display:grid;gap:8px}
.footer-links a{color:#94a6a5;font-size:13px;transition:.2s}
.footer-links a:hover{color:var(--mint)}
.copyright{display:flex;justify-content:space-between;gap:15px;border-top:1px solid rgba(255,255,255,.12);margin-top:42px;padding-top:20px;color:#718283;font-size:12px}
:focus-visible{outline:3px solid rgba(230,107,82,.45);outline-offset:3px}
@media(max-width:1024px){.nav-links{gap:2px}.nav-links a{padding:8px 9px}.hero-main{padding:38px}.topic-layout{grid-template-columns:1fr}.feature-band{grid-template-columns:repeat(3,1fr)}}
@media(max-width:768px){.container{width:min(100% - 30px,620px)}.nav-wrap{height:68px}.menu-btn{display:block}.nav-links{display:none;position:absolute;top:68px;left:15px;right:15px;padding:10px;background:#fff;border:1px solid var(--line);border-radius:15px;box-shadow:var(--shadow);flex-direction:column;align-items:stretch}.nav-links.open{display:flex}.nav-links a{padding:12px 14px}.hero{padding:30px 0}.hero-grid,.detail-grid,.quote-grid{grid-template-columns:1fr}.hero-main{min-height:430px;padding:30px}.hero-side{grid-template-columns:1fr 1fr}.section{padding:55px 0}.section-head{display:block}.section-head h2{font-size:27px}.section-lead{margin-top:12px}.feature-band,.news-grid{grid-template-columns:1fr}.faq-grid{grid-template-columns:1fr}.cta-inner{display:block}.cta-inner .btn{margin-top:20px}.footer-grid{grid-template-columns:1fr 1fr}}
@media(max-width:520px){.hero-side{grid-template-columns:1fr}.hero-tile{min-height:150px}.hero-main h1{font-size:38px}.hero-actions{display:grid}.hero-actions .btn{width:100%}.topic-grid{grid-template-columns:1fr}.metric-panel{grid-template-columns:1fr}.metric:nth-last-child(2){border-bottom:1px solid #edf0ee}.footer-grid{grid-template-columns:1fr}.copyright{display:block}.copyright span{display:block;margin-top:5px}.news-card{grid-template-columns:90px 1fr}.news-card img{height:76px}}