/* roulang page: index */
:root{--bg:#101816;--surface:#17221f;--surface2:#1e2b26;--text:#edf2e8;--muted:#a3b1a7;--line:#334239;--accent:#d8ef9e;--gold:#c9ad7b;--radius:18px;--shadow:0 22px 60px #0003;--space:88px}
*{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:105px}body{margin:0;background:var(--bg);color:var(--text);font-family:"PingFang SC","Microsoft YaHei",system-ui,sans-serif;font-size:16px;line-height:1.85;-webkit-font-smoothing:antialiased}a{color:inherit;text-decoration:none;transition:color .2s,background .2s,transform .2s}a:hover{color:var(--accent)}button,input{font:inherit}button,a,input,summary{ -webkit-tap-highlight-color:transparent}a:focus-visible,button:focus-visible,input:focus-visible,summary:focus-visible{outline:3px solid var(--accent);outline-offset:5px}img,svg{max-width:100%;vertical-align:middle}button:active,.btn:active{transform:translateY(1px)}h1,h2,h3,p{margin:0}h1,h2,h3{line-height:1.3}p{color:var(--muted)}.container{max-width:1200px;padding-right:28px;padding-left:28px}.site-header{position:sticky;top:0;z-index:100;background:#101816f2;backdrop-filter:blur(18px);border-bottom:1px solid var(--line)}.navbar{min-height:88px;padding:14px 0;gap:35px}.brand{display:flex;align-items:center;gap:12px;white-space:nowrap;font-weight:700;font-size:16px}.brand-mark{font-size:31px;line-height:1;letter-spacing:-3px;color:var(--accent);padding-right:4px}.navbar-nav{gap:6px}.navbar .nav-link{color:var(--muted);font-size:14px;padding:10px 15px!important;border-radius:9px}.navbar .nav-link:hover,.navbar .nav-link.active{color:var(--text);background:var(--surface2)}.nav-tools{margin-left:auto;display:flex;gap:10px;align-items:center}.command{display:flex;align-items:center;background:#0c1311;border:1px solid var(--line);border-radius:10px;padding:7px 10px;gap:8px}.command input{width:132px;background:none;color:var(--text);border:0;font-size:13px;outline-offset:2px}.command input::placeholder{color:#87968c}.command kbd{background:var(--surface2);color:var(--muted);font-size:11px}.btn{border-radius:10px;font-size:14px;font-weight:650;line-height:1.5;padding:13px 22px;transition:.2s;border:1px solid transparent}.btn-primary{--bs-btn-bg:var(--accent);--bs-btn-border-color:var(--accent);--bs-btn-color:#172217;--bs-btn-hover-bg:#e6fac2;--bs-btn-hover-color:#172217;--bs-btn-hover-border-color:#e6fac2;--bs-btn-active-bg:#c5df8b;--bs-btn-active-color:#172217}.btn-outline{border-color:var(--line);color:var(--text);background:transparent}.btn-outline:hover{border-color:var(--accent);color:var(--accent);background:#d8ef9e08}.nav-quick{font-size:13px;color:var(--muted);white-space:nowrap}.navbar-toggler{border:1px solid var(--line);color:var(--text);font-size:21px;padding:4px 11px}.section{padding:var(--space) 0;border-bottom:1px solid var(--line)}.section-tint{background:var(--surface)}.eyebrow{display:block;font-size:12px;font-weight:650;color:var(--gold);letter-spacing:3px;margin-bottom:18px}.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:50px;margin-bottom:36px}.section-head h2{font-size:32px;letter-spacing:-1px;min-width:260px}.section-head p{font-size:15px;max-width:640px}.hero{position:relative;overflow:hidden;padding:80px 0 0;background:radial-gradient(ellipse at 75% 12%,#34433280,transparent 60%)}.hero:before{content:"";position:absolute;width:660px;height:660px;border:1px solid #d8ef9e13;border-radius:50%;right:-210px;top:-270px;box-shadow:0 0 0 85px #d8ef9e04,0 0 0 170px #d8ef9e03;pointer-events:none}.hero-copy{max-width:850px;position:relative}.hero h1{font-size:clamp(38px,5.3vw,66px);font-weight:650;letter-spacing:-2px}.hero h1 span{display:block;color:var(--accent);margin-top:10px}.hero-intro{max-width:810px;margin-top:26px;font-size:16px;line-height:2}.hero-actions{display:flex;align-items:center;gap:24px;margin:28px 0 42px}.quiet{font-size:12px;color:var(--muted)}.stage{position:relative;border:1px solid #4b5d46;border-radius:20px 20px 0 0;background:#141e1a;box-shadow:var(--shadow);overflow:hidden}.stage-bar{display:flex;justify-content:space-between;align-items:center;gap:16px;padding:16px 24px;border-bottom:1px solid var(--line);font-size:12px;color:var(--muted)}.live-dot{display:inline-block;width:7px;height:7px;border-radius:50%;background:var(--accent);margin-right:9px}.stage-body{display:grid;grid-template-columns:190px 1fr 230px;min-height:240px}.stage-index{padding:25px;border-right:1px solid var(--line);display:flex;flex-direction:column;gap:14px;font-size:13px;color:var(--muted)}.stage-index strong{color:var(--accent)}.stage-feature{padding:30px}.stage-feature h2{font-size:29px;margin:12px 0}.stage-feature p{font-size:14px;max-width:470px}.tag{display:inline-block;border:1px solid var(--line);border-radius:6px;padding:3px 10px;font-size:11px;color:var(--accent);background:#d8ef9e06}.stage-art{display:grid;place-items:center;position:relative;overflow:hidden;background:#223127}.stage-art:before,.stage-art:after{content:"";position:absolute;width:160px;height:160px;border:1px solid #aac98644;transform:rotate(35deg)}.stage-art:after{transform:rotate(55deg);width:125px;height:125px}.stage-art span{font-size:78px;font-weight:700;letter-spacing:-9px;color:var(--accent);z-index:1}.card{height:100%;background:var(--surface);color:var(--text);border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;transition:transform .25s,border-color .25s,box-shadow .25s}.card:hover{transform:translateY(-4px);border-color:#657555;box-shadow:var(--shadow)}.card-body{padding:28px}.card h3{font-size:21px;margin:15px 0 12px}.card p{font-size:14px}.card-icon{font-size:13px;color:var(--gold);letter-spacing:2px}.channel{display:grid;grid-template-columns:1.15fr 1fr;gap:30px;padding:32px;background:var(--surface2);border:1px solid var(--line);border-radius:var(--radius)}.channel h3{font-size:25px;margin-bottom:15px}.tree{list-style:none;padding:0 0 0 22px;margin:0;border-left:1px solid #52634b;display:grid;gap:13px}.tree li{display:flex;justify-content:space-between;font-size:14px}.tree span{color:var(--muted);font-size:12px}.cover{height:160px;padding:26px;background:linear-gradient(125deg,#354336,#19231d);position:relative;overflow:hidden;display:flex;align-items:end}.cover:after{content:"c7";position:absolute;right:22px;bottom:-45px;font-size:165px;line-height:1.2;letter-spacing:-17px;font-weight:700;color:#d8ef9e12}.cover b{font-size:27px;font-weight:500;position:relative;z-index:1}.cover.alt{background:linear-gradient(125deg,#423a2b,#231f19)}.step-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:36px}.step{padding:20px 0;border-top:1px solid #5f7152}.step strong{color:var(--accent);font-size:13px}.step h3{font-size:20px;margin:17px 0 12px}.step p{font-size:14px}.news-list{border-top:1px solid var(--line)}.news-item{display:grid;grid-template-columns:110px 1fr 35px;gap:24px;padding:26px 0;border-bottom:1px solid var(--line);align-items:start}.news-item .tag{justify-self:start}.news-item h3{font-size:19px;margin-bottom:9px}.news-item p{font-size:14px}.news-item>a{font-size:23px;color:var(--accent)}.rank-layout{display:grid;grid-template-columns:.8fr 1.2fr;gap:65px}.rank-layout h2{font-size:34px;margin-bottom:22px}.rank-layout p{font-size:15px}.rank-list{list-style:none;padding:0;margin:0}.rank-list li{display:flex;gap:23px;border-bottom:1px solid var(--line);padding:22px 0}.rank-list li:first-child{padding-top:0}.rank-number{font-size:30px;line-height:1.2;color:var(--gold);font-weight:300}.rank-list h3{font-size:20px;margin-bottom:8px}.rank-list p{font-size:14px}.evidence{background:#dfe7d4;color:#1e2b22;border-radius:var(--radius);padding:38px;display:grid;grid-template-columns:1fr 1fr;gap:50px}.evidence p{color:#55624f;font-size:15px}.evidence h3{font-size:25px;margin:15px 0}.evidence .tag{border-color:#9dad91;color:#3b5634}.evidence ul{padding:0;margin:0;list-style:none}.evidence li{border-bottom:1px solid #bac6b0;padding:14px 0;font-size:14px}.evidence li:before{content:"✓";margin-right:14px;color:#426631}.partner-line{display:grid;grid-template-columns:repeat(3,1fr);border:1px solid var(--line);border-radius:var(--radius);overflow:hidden}.partner-line div{padding:28px;border-right:1px solid var(--line)}.partner-line div:last-child{border:0}.partner-line h3{font-size:18px;margin-bottom:12px}.partner-line p{font-size:14px}.shield{display:grid;grid-template-columns:1fr 1fr;gap:20px}.shield article{padding:25px;background:var(--surface2);border-radius:12px;border-left:2px solid var(--gold)}.shield h3{font-size:18px;margin-bottom:10px}.shield p{font-size:14px}.metrics{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}.metric{border-top:1px solid var(--line);padding:25px 0}.metric b{display:block;font-size:47px;color:var(--accent);font-weight:450;line-height:1.3}.metric h3{font-size:17px;margin:12px 0}.metric p{font-size:14px}.cta-box{background:var(--surface2);border:1px solid #516346;border-radius:22px;padding:42px;display:grid;grid-template-columns:1fr 1fr;gap:50px}.cta-box h2{font-size:31px;margin-bottom:18px}.cta-box p{font-size:15px}.search-label{font-size:14px;display:block;margin-bottom:12px}.search-row{display:flex;gap:10px}.form-control{background:#101816;border:1px solid #52634b;color:var(--text);border-radius:10px;padding:13px;min-width:0}.form-control:focus{background:#101816;color:var(--text);border-color:var(--accent);box-shadow:0 0 0 3px #d8ef9e15}.form-control::placeholder{color:#87968c}.search-row .btn{white-space:nowrap}.search-results{margin-top:18px;font-size:14px;color:var(--muted)}.result-link{display:block;padding:9px 0;color:var(--accent);border-bottom:1px solid var(--line)}.site-footer{padding:45px 0 25px;background:#0c1311}.footer-top{display:flex;align-items:flex-start;justify-content:space-between;gap:30px}.footer-top p{font-size:13px;margin-top:15px;max-width:490px}.footer-links{display:flex;gap:25px;font-size:13px}.copyright{border-top:1px solid var(--line);padding-top:21px;margin-top:30px;display:flex;justify-content:space-between;gap:20px;font-size:11px;color:#7f9083}
@media(min-width:992px){.navbar-collapse{gap:24px}}
@media(max-width:1024px){.container{padding-left:24px;padding-right:24px}.navbar{gap:20px}.nav-quick{display:none}.command input{width:100px}.stage-body{grid-template-columns:160px 1fr 170px}.section-head{gap:30px}.rank-layout{gap:35px}}
@media(max-width:991px){.navbar-collapse{padding-top:20px}.nav-tools{margin-top:15px;margin-left:0;flex-wrap:wrap}.navbar-nav{flex-direction:row}.command{flex:1}.command input{width:100%}.section-head{display:block}.section-head p{margin-top:20px}.stage-art{display:none}.stage-body{grid-template-columns:160px 1fr}.hero{padding-top:60px}}
@media(max-width:768px){:root{--space:62px}.hero h1{letter-spacing:-1px}.hero-intro{font-size:15px}.channel,.rank-layout,.evidence,.cta-box{grid-template-columns:1fr;gap:28px}.step-grid{grid-template-columns:1fr;gap:10px}.partner-line{grid-template-columns:1fr}.partner-line div{border-right:0;border-bottom:1px solid var(--line)}.footer-top{flex-direction:column}.section-head h2,.rank-layout h2{font-size:28px}.stage-feature{padding:25px}.metrics{gap:16px}.metric b{font-size:37px}.cta-box{padding:30px}}
@media(max-width:520px){.container{padding-left:20px;padding-right:20px}.brand{font-size:14px}.navbar{min-height:74px}.hero{padding-top:45px}.hero h1{font-size:37px}.hero-actions{gap:15px;flex-wrap:wrap}.stage-bar{padding:13px 17px;font-size:10px}.stage-body{grid-template-columns:1fr}.stage-index{flex-direction:row;flex-wrap:wrap;border-right:0;border-bottom:1px solid var(--line);padding:15px;gap:17px}.stage-feature h2{font-size:24px}.channel,.evidence{padding:25px}.shield,.metrics{grid-template-columns:1fr}.metric{display:grid;grid-template-columns:70px 1fr;column-gap:20px}.metric b{grid-row:span 2}.metric h3{margin:0 0 8px}.news-item{grid-template-columns:1fr 25px;gap:12px}.news-item>.tag{grid-column:1/-1}.footer-links{flex-wrap:wrap;gap:18px}.copyright{flex-direction:column;gap:5px}.cta-box{padding:24px}.search-row{flex-direction:column}.section-head h2{min-width:0}.command kbd{display:none}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*,*:before,*:after{transition:none!important}}

/* roulang page: category1 */
:root{--bg:#101816;--surface:#17221f;--surface2:#1e2b26;--text:#edf2e8;--muted:#a3b1a7;--line:#334239;--accent:#d8ef9e;--gold:#c9ad7b;--radius:18px;--shadow:0 22px 60px #0003;--space:88px}
*{box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:110px}
body{margin:0;background:var(--bg);color:var(--text);font-family:"PingFang SC","Microsoft YaHei",system-ui,sans-serif;font-size:16px;line-height:1.85;-webkit-font-smoothing:antialiased}
a{color:inherit;text-decoration:none;transition:color .2s,background .2s,transform .2s}
a:hover{color:var(--accent)}
button,input{font:inherit}
button,a,input,summary{-webkit-tap-highlight-color:transparent}
a:focus-visible,button:focus-visible,input:focus-visible,summary:focus-visible{outline:3px solid var(--accent);outline-offset:5px}
img,svg{max-width:100%;vertical-align:middle}
button:active,.btn:active{transform:translateY(1px)}
p{color:var(--muted);margin:0 0 18px}
p:last-child{margin-bottom:0}
h1,h2,h3{line-height:1.4;font-weight:650}
.container{max-width:1200px;padding-right:28px;padding-left:28px}
.site-header{position:sticky;top:0;z-index:100;background:#101816f2;backdrop-filter:blur(18px);border-bottom:1px solid var(--line)}
.navbar{min-height:88px;padding:14px 0;gap:35px}
.brand{display:flex;align-items:center;gap:12px;white-space:nowrap;font-weight:700;font-size:16px}
.brand-mark{font-size:31px;line-height:1;letter-spacing:-3px;color:var(--accent);padding-right:4px}
.navbar-nav{gap:6px}
.navbar .nav-link{color:var(--muted);font-size:14px;padding:10px 15px!important;border-radius:9px}
.navbar .nav-link:hover,.navbar .nav-link.active{color:var(--text);background:var(--surface2)}
.nav-tools{margin-left:auto;display:flex;gap:10px;align-items:center}
.command{display:flex;align-items:center;gap:8px;border:1px solid var(--line);background:var(--surface);border-radius:10px;padding:8px 10px}
.command input{width:132px;background:none;color:var(--text);border:0;font-size:13px;outline-offset:2px}
.command input::placeholder{color:#87968c}
.command kbd{font-family:inherit;color:var(--muted);font-size:10px;background:var(--bg);border:1px solid var(--line);padding:1px 5px;border-radius:4px;white-space:nowrap}
.btn{border-radius:10px;font-size:14px;font-weight:650;line-height:1.5;padding:13px 22px;transition:.2s;border:1px solid transparent}
.btn-primary{--bs-btn-bg:var(--accent);--bs-btn-border-color:var(--accent);--bs-btn-color:#172217;--bs-btn-hover-bg:#e6fac2;--bs-btn-hover-color:#172217;--bs-btn-hover-border-color:#e6fac2;--bs-btn-active-bg:#c5df8b;--bs-btn-active-color:#172217}
.btn-outline{border-color:var(--line);color:var(--text);background:transparent}
.btn-outline:hover{border-color:var(--accent);color:var(--accent);background:#d8ef9e08}
.nav-quick{font-size:13px;color:var(--muted);white-space:nowrap}
.navbar-toggler{border:1px solid var(--line);color:var(--text);font-size:21px;padding:4px 11px}
.section{padding:var(--space) 0;border-bottom:1px solid var(--line)}
.section-tint{background:var(--surface)}
.eyebrow{display:block;font-size:12px;font-weight:650;color:var(--gold);letter-spacing:3px;margin-bottom:18px}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:50px;margin-bottom:36px}
.section-head h2{font-size:32px;letter-spacing:-1px;min-width:260px;margin:0}
.section-head p{font-size:15px;max-width:560px}
.hero{position:relative;overflow:hidden;padding:54px 0 68px;background:radial-gradient(ellipse at 85% 12%,#34433280,transparent 60%);border-bottom:1px solid var(--line)}
.hero:before{content:"";position:absolute;width:660px;height:660px;border:1px solid #d8ef9e13;border-radius:50%;right:-210px;top:-270px;box-shadow:0 0 0 85px #d8ef9e04,0 0 0 170px #d8ef9e03;pointer-events:none}
.hero .container{position:relative}
.hero h1{font-size:clamp(32px,4vw,51px);font-weight:650;letter-spacing:-1.5px;margin:18px 0 22px}
.hero h1 span{display:block;color:var(--accent);margin-top:8px}
.hero-intro{max-width:630px;font-size:16px;line-height:2}
.breadcrumb-line{font-size:13px;color:var(--muted);display:flex;gap:12px;margin-bottom:36px}
.hero-panel{background:#141e1a;border:1px solid #4b5d46;border-radius:var(--radius);box-shadow:var(--shadow);padding:30px}
.hero-panel h2{font-size:21px;margin-bottom:24px}
.hero-panel .panel-note{font-size:12px;border-top:1px solid var(--line);margin-top:22px;padding-top:16px}
.tag{display:inline-block;border:1px solid var(--line);border-radius:6px;padding:3px 10px;font-size:11px;color:var(--accent);background:#d8ef9e06}
.topic-tags{display:flex;gap:8px;flex-wrap:wrap;margin-top:27px}
.card{height:100%;background:var(--surface);color:var(--text);border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;transition:transform .25s,border-color .25s,box-shadow .25s}
.card:hover{transform:translateY(-4px);border-color:#657555;box-shadow:var(--shadow)}
.card-body{padding:28px}
.card h3{font-size:21px;margin:15px 0 12px}
.card p{font-size:14px}
.card-icon{font-size:13px;color:var(--gold);letter-spacing:2px}
.step-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:36px}
.step{border-top:1px solid #647154;padding-top:23px}
.step-number{font-size:34px;color:var(--gold);font-weight:500;display:block;margin-bottom:18px}
.step h3{font-size:21px}
.step p{font-size:14px;margin-top:14px}
.evidence-box{background:var(--accent);color:#172217;border-radius:var(--radius);padding:36px;height:100%}
.evidence-box p{color:#43563b;font-size:14px}
.evidence-box h2{font-size:30px;margin:22px 0}
.evidence-mark{font-size:56px;letter-spacing:-5px;line-height:1.2;font-weight:700}
.rank-list{list-style:none;padding:0;margin:0}
.rank-list li{display:flex;gap:23px;border-bottom:1px solid var(--line);padding:22px 0}
.rank-list li:first-child{padding-top:0}
.rank-list li:last-child{border-bottom:0;padding-bottom:0}
.rank-list .index{color:var(--gold);font-size:12px;padding-top:6px}
.rank-list h3{font-size:20px;margin-bottom:8px}
.rank-list p{font-size:14px}
.concern{display:grid;grid-template-columns:1fr 1.35fr;gap:30px;padding:24px 0;border-bottom:1px solid var(--line)}
.concern:first-child{border-top:1px solid var(--line)}
.concern h3{font-size:19px;margin:0}
.concern p{font-size:14px}
.audience-card{padding:30px;border-left:2px solid var(--gold);background:var(--surface2);height:100%;border-radius:0 14px 14px 0}
.audience-card h3{font-size:20px;margin-bottom:15px}
.audience-card p{font-size:14px}
.news-list{border-top:1px solid var(--line)}
.news-item{display:grid;grid-template-columns:110px 1fr 35px;gap:24px;padding:26px 0;border-bottom:1px solid var(--line);align-items:start}
.news-item .tag{justify-self:start}
.news-item h3{font-size:19px;margin-bottom:9px}
.news-item p{font-size:14px}
.news-item>a{font-size:23px;color:var(--accent)}
.metric-grid{display:grid;grid-template-columns:repeat(3,1fr);border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;margin-top:30px}
.metric{padding:28px;border-right:1px solid var(--line);background:var(--surface)}
.metric:last-child{border-right:0}
.metric strong{display:block;color:var(--accent);font-size:37px;font-weight:500}
.metric h3{font-size:16px;margin:12px 0}
.metric p{font-size:13px}
.privacy-note{margin-top:25px;font-size:13px;max-width:850px}
.cta-box{background:var(--surface2);border:1px solid #516346;border-radius:22px;padding:42px;display:grid;grid-template-columns:1fr 1fr;gap:50px;align-items:center}
.cta-box h2{font-size:31px;margin-bottom:18px}
.cta-box p{font-size:15px}
.cta-actions{display:flex;flex-wrap:wrap;gap:12px;justify-content:flex-end}
.search-label{font-size:14px;display:block;margin-bottom:12px}
.search-row{display:flex;gap:10px}
.form-control{background:#101816;border:1px solid #52634b;color:var(--text);border-radius:10px;padding:13px;min-width:0}
.form-control:focus{background:#101816;color:var(--text);border-color:var(--accent);box-shadow:0 0 0 3px #d8ef9e15}
.form-control::placeholder{color:#87968c}
.search-row .btn{white-space:nowrap}
.search-results{margin-top:18px;font-size:14px;color:var(--muted)}
.search-results ul{padding:0;margin:12px 0 0;list-style:none}
.search-results a{display:block;padding:9px 0;border-bottom:1px solid var(--line);color:var(--accent)}
.site-footer{padding:45px 0 25px;background:#0c1311}
.footer-top{display:flex;justify-content:space-between;gap:35px;padding-bottom:35px}
.footer-top p{font-size:13px;margin-top:20px}
.footer-links{display:flex;align-items:flex-start;gap:24px;font-size:13px;color:var(--muted)}
.copyright{border-top:1px solid var(--line);padding-top:22px;display:flex;justify-content:space-between;gap:18px;color:#819186;font-size:12px}
@media(max-width:1199px){.navbar{gap:20px}.nav-tools{gap:8px}.command input{width:108px}.nav-quick{display:none}.nav-tools .btn{padding:12px 15px}}
@media(max-width:1024px){:root{--space:65px}.section-head{gap:28px}.hero-panel{padding:24px}.command kbd{display:none}.step-grid{gap:24px}}
@media(max-width:991px){.navbar-collapse{padding:18px 0 8px;border-top:1px solid var(--line)}.navbar-nav{flex-direction:row;margin-bottom:18px}.nav-tools{margin-left:0;flex-wrap:wrap}.command{flex:1}.command input{width:100%}.nav-quick{display:block}.hero-panel{margin-top:12px}.section-head{align-items:flex-start}.cta-box{gap:25px}.footer-links{gap:16px}}
@media(max-width:768px){.container{padding-left:22px;padding-right:22px}.navbar{min-height:76px}.section-head{display:block;margin-bottom:28px}.section-head h2{font-size:27px;min-width:0;margin-bottom:18px}.hero{padding:35px 0 48px}.breadcrumb-line{margin-bottom:25px}.hero h1{font-size:37px}.step-grid{grid-template-columns:1fr;gap:30px}.step{position:relative;padding-left:58px}.step-number{position:absolute;left:0;top:15px}.concern{grid-template-columns:1fr;gap:12px}.cta-box{grid-template-columns:1fr;padding:30px}.cta-actions{justify-content:flex-start}.footer-top{flex-direction:column}.metric{padding:22px 18px}.news-item{grid-template-columns:85px 1fr 24px;gap:15px}}
@media(max-width:520px){:root{--space:50px}.container{padding-left:20px;padding-right:20px}.hero h1{font-size:31px;letter-spacing:-1px}.hero-intro{font-size:15px}.nav-tools{gap:12px}.command{flex-basis:100%}.nav-tools .nav-quick{margin-right:auto}.hero-panel{padding:22px}.search-row{flex-wrap:wrap}.search-row .form-control{flex-basis:100%}.search-row .btn{width:100%}.metric-grid{grid-template-columns:1fr}.metric{border-right:0;border-bottom:1px solid var(--line);padding:24px}.metric:last-child{border-bottom:0}.metric strong{font-size:32px}.news-item{grid-template-columns:1fr 24px}.news-item .tag{grid-column:1/-1}.card-body{padding:24px}.evidence-box{padding:28px}.copyright{flex-direction:column;gap:5px}.footer-links{flex-wrap:wrap}.cta-box h2{font-size:26px}.cta-actions .btn{flex:1}.section-head h2{font-size:26px}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*,*:before,*:after{transition:none!important}}

/* roulang: framework shim */
/* 覆盖 Bootstrap 等对 a/btn 的全局默认，避免导航出现下划线/蓝链 */
.site-header a,.site-header a:hover,.navbar a,.navbar a:hover,.nav-links a,.nav-links a:hover,header nav a,header nav a:hover{text-decoration:none}
.site-header .btn,.navbar .btn,.nav-cta{text-decoration:none}