/* roulang page: index */
:root{
      --blue:#235b87;
      --blue-deep:#163c5b;
      --blue-soft:#e8f1f7;
      --ink:#1d2b38;
      --muted:#6c7c88;
      --paper:#f7f9fa;
      --sand:#f1ede5;
      --line:#dce5ea;
      --white:#fff;
      --accent:#c27b49;
      --radius:18px;
      --shadow:0 16px 42px rgba(29,58,78,.10);
      --shadow-sm:0 7px 20px rgba(29,58,78,.08);
      --ease:all .22s ease;
    }
    *{box-sizing:border-box;margin:0;padding:0}
    html{scroll-behavior:smooth}
    body{font-family:"Noto Sans SC","PingFang SC","Microsoft YaHei",sans-serif;color:var(--ink);background:var(--paper);line-height:1.75;font-size:16px;padding-bottom:76px}
    a{color:inherit;text-decoration:none}
    img{display:block;max-width:100%}
    button,input{font:inherit}
    button{border:0;cursor:pointer}
    :focus-visible{outline:3px solid rgba(194,123,73,.55);outline-offset:3px}
    .container{width:min(1180px,calc(100% - 40px));margin:auto}
    .site-header{position:sticky;top:0;z-index:20;background:rgba(247,249,250,.96);border-bottom:1px solid var(--line);transition:var(--ease)}
    .nav{height:78px;display:flex;align-items:center;justify-content:space-between;gap:28px}
    .brand{display:flex;align-items:center;gap:11px;font-weight:800;letter-spacing:-.03em;white-space:nowrap}
    .brand-mark{width:36px;height:36px;border-radius:11px;background:var(--blue);color:#fff;display:grid;place-items:center;font-size:14px}
    .brand-name{font-size:18px;color:var(--blue-deep)}
    .nav-links{display:flex;align-items:center;gap:8px;margin-left:auto}
    .nav-links a{padding:10px 16px;border-radius:10px;color:var(--muted);font-size:14px;transition:var(--ease)}
    .nav-links a:hover,.nav-links a.active{color:var(--blue);background:var(--blue-soft)}
    .nav-end{display:flex;align-items:center;gap:12px}
    .lang{display:flex;border:1px solid var(--line);border-radius:999px;padding:3px;background:#fff;font-size:12px;color:var(--muted)}
    .lang span{padding:5px 9px;border-radius:999px}.lang .on{background:var(--blue);color:#fff}
    .menu-toggle{display:none;background:var(--blue-soft);color:var(--blue);border-radius:10px;width:42px;height:42px}
    .hero{padding:74px 0 80px;position:relative;overflow:hidden}
    .hero-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:70px;align-items:center}
    .eyebrow,.kicker{display:inline-flex;align-items:center;gap:8px;color:var(--accent);font-size:12px;font-weight:800;letter-spacing:.14em;text-transform:uppercase}
    .eyebrow:before{content:"";width:26px;height:2px;background:var(--accent)}
    h1{font-size:clamp(42px,6vw,72px);line-height:1.12;letter-spacing:-.065em;color:var(--blue-deep);margin:20px 0 24px}
    .hero-copy{font-size:18px;color:var(--muted);max-width:620px}
    .actions{display:flex;gap:12px;flex-wrap:wrap;margin-top:31px}
    .btn{min-height:48px;display:inline-flex;align-items:center;justify-content:center;padding:0 21px;border-radius:11px;font-size:14px;font-weight:700;transition:var(--ease);border:1px solid transparent}
    .btn-primary{background:var(--blue);color:#fff;box-shadow:0 8px 18px rgba(35,91,135,.20)}
    .btn-primary:hover{background:var(--blue-deep);transform:translateY(-2px);box-shadow:0 12px 24px rgba(35,91,135,.25)}
    .btn-secondary{background:#fff;color:var(--blue);border-color:var(--line)}
    .btn-secondary:hover{border-color:var(--blue);background:var(--blue-soft)}
    .hero-stats{display:flex;gap:28px;margin-top:42px;padding-top:20px;border-top:1px solid var(--line)}
    .stat strong{display:block;font-size:24px;color:var(--blue-deep)}.stat small{color:var(--muted);font-size:12px}
    .cover-stage{min-height:430px;position:relative;background:var(--sand);border-radius:24px;padding:26px;box-shadow:var(--shadow);overflow:hidden}
    .cover-stage:before{content:"";position:absolute;inset:18px;border:1px solid rgba(35,91,135,.22);border-radius:17px}
    .cover-art{height:100%;min-height:378px;border-radius:15px;background:linear-gradient(135deg,#274e68 0%,#7997a2 48%,#dfc8ad 49%,#b87850 100%);position:relative;overflow:hidden}
    .cover-art:after{content:"";position:absolute;inset:0;background:radial-gradient(circle at 25% 25%,rgba(255,255,255,.3),transparent 25%),linear-gradient(110deg,transparent 55%,rgba(18,48,65,.35) 56%)}
    .cover-label{position:absolute;z-index:1;left:28px;bottom:26px;color:#fff}
    .cover-label small{display:block;letter-spacing:.18em;font-size:11px;margin-bottom:8px}.cover-label strong{font-size:28px;line-height:1.2;display:block}
    .cover-index{position:absolute;z-index:2;right:27px;top:26px;background:#fff;color:var(--blue);padding:7px 10px;border-radius:6px;font-size:12px;font-weight:800}
    section{padding:96px 0}.section-head{display:flex;justify-content:space-between;align-items:end;gap:30px;margin-bottom:38px}
    h2{font-size:clamp(29px,4vw,44px);line-height:1.2;letter-spacing:-.045em;color:var(--blue-deep)}
    .section-intro{max-width:570px;color:var(--muted)}
    .triple{display:grid;grid-template-columns:1.25fr .9fr .9fr;gap:20px}
    .feature{padding:28px;border:1px solid var(--line);background:#fff;border-radius:var(--radius);min-height:190px;transition:var(--ease);box-shadow:var(--shadow-sm)}
    .feature:first-child{background:var(--blue-deep);color:#fff;border-color:var(--blue-deep)}
    .feature:hover{transform:translateY(-4px);box-shadow:var(--shadow)}
    .num{font-size:12px;color:var(--accent);font-weight:800;letter-spacing:.1em}.feature:first-child .num{color:#e7b28a}
    h3{font-size:21px;line-height:1.35;margin:16px 0 9px;color:var(--blue-deep)}.feature:first-child h3{color:#fff}
    .feature p{font-size:14px;color:var(--muted)}.feature:first-child p{color:#d8e4eb}
    .path-wrap{background:#fff;border:1px solid var(--line);border-radius:22px;padding:34px;box-shadow:var(--shadow-sm)}
    .path{display:grid;grid-template-columns:repeat(4,1fr);gap:0}
    .path-item{position:relative;padding:8px 22px 10px 0}.path-item:not(:last-child):after{content:"→";position:absolute;right:16px;top:28px;color:var(--accent);font-size:22px}
    .path-item b{display:grid;place-items:center;width:34px;height:34px;border-radius:50%;background:var(--blue-soft);color:var(--blue);font-size:13px;margin-bottom:17px}
    .path-item h3{font-size:17px;margin:0 0 7px}.path-item p{font-size:13px;color:var(--muted)}
    .recognition{background:var(--blue-soft)}
    .quote-grid{display:grid;grid-template-columns:1.2fr .8fr;gap:22px}
    .quote,.update-box{background:#fff;border-radius:var(--radius);border:1px solid var(--line);padding:30px;box-shadow:var(--shadow-sm)}
    .quote blockquote{font-size:23px;line-height:1.55;color:var(--blue-deep);letter-spacing:-.02em}
    .quote cite{display:block;margin-top:22px;color:var(--muted);font-size:13px;font-style:normal}
    .update-list{list-style:none}.update-list li{display:flex;justify-content:space-between;gap:15px;padding:14px 0;border-bottom:1px solid var(--line);font-size:14px}.update-list li:last-child{border:0}.update-list time{color:var(--muted);white-space:nowrap;font-size:12px}
    .quick{display:grid;grid-template-columns:.9fr 1.1fr;gap:60px;align-items:start}
    .quick-note{color:var(--muted);margin-top:16px}.entry-list{display:grid;grid-template-columns:1fr 1fr;gap:12px}
    .entry{display:flex;align-items:center;justify-content:space-between;padding:19px 20px;background:#fff;border:1px solid var(--line);border-radius:13px;color:var(--blue-deep);font-weight:700;transition:var(--ease)}
    .entry:hover{border-color:var(--blue);transform:translateX(3px);box-shadow:var(--shadow-sm)}.entry span{color:var(--accent)}
    .faq-list{max-width:840px;margin:auto;border-top:1px solid var(--line)}
    .faq-item{border-bottom:1px solid var(--line)}.faq-q{width:100%;background:none;text-align:left;display:flex;justify-content:space-between;gap:20px;padding:22px 0;color:var(--blue-deep);font-weight:700}.faq-q i{font-style:normal;color:var(--accent);font-size:22px;transition:var(--ease)}.faq-q[aria-expanded=true] i{transform:rotate(45deg)}
    .faq-a{display:none;color:var(--muted);font-size:14px;padding:0 45px 22px 0}.faq-a.open{display:block}
    .safety{background:var(--sand)}.safety-inner{display:flex;justify-content:space-between;align-items:center;gap:40px}.safety p{color:var(--muted);max-width:700px}.safety-badge{border:1px solid rgba(194,123,73,.45);padding:17px 22px;border-radius:12px;color:var(--accent);font-weight:800;white-space:nowrap}
    .site-footer{background:#18384f;color:#d9e6ed;padding:54px 0 34px}.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr;gap:45px}.footer-brand{color:#fff;font-size:19px;font-weight:800}.footer-copy{font-size:13px;color:#a9c0cb;margin-top:14px;max-width:360px}.footer-title{font-size:13px;color:#fff;font-weight:800;margin-bottom:14px}.footer-links{display:flex;flex-direction:column;gap:8px;font-size:13px;color:#b6cbd4}.footer-links a:hover{color:#fff}.copyright{border-top:1px solid rgba(255,255,255,.15);margin-top:40px;padding-top:22px;color:#9eb6c1;font-size:12px;display:flex;justify-content:space-between;gap:20px}
    .fixed-cta{position:fixed;z-index:30;bottom:0;left:0;right:0;background:rgba(255,255,255,.97);border-top:1px solid var(--line);box-shadow:0 -8px 25px rgba(20,50,70,.08);padding:12px 0}.fixed-inner{display:flex;justify-content:space-between;align-items:center;gap:20px}.fixed-cta p{font-size:13px;color:var(--muted)}.fixed-cta strong{color:var(--blue-deep)}
    @media(max-width:992px){.hero-grid{gap:35px}.triple{grid-template-columns:1fr 1fr}.feature:first-child{grid-column:span 2}.quick{gap:30px}.nav-links a{padding:9px 10px}}
    @media(max-width:768px){.container{width:min(100% - 30px,620px)}.nav{height:68px}.nav-links{display:none;position:absolute;top:68px;left:15px;right:15px;background:#fff;border:1px solid var(--line);padding:12px;border-radius:14px;box-shadow:var(--shadow)}.nav-links.open{display:flex;flex-direction:column;align-items:stretch}.nav-links a{display:block}.menu-toggle{display:block}.nav-end{margin-left:auto}.hero{padding:54px 0 60px}.hero-grid,.quote-grid,.quick{grid-template-columns:1fr}.cover-stage{min-height:330px}.cover-art{min-height:278px}.hero-stats{gap:18px}.path{grid-template-columns:1fr 1fr;gap:24px}.path-item:not(:last-child):after{display:none}section{padding:68px 0}.section-head{display:block}.section-intro{margin-top:13px}.safety-inner{display:block}.safety-badge{display:inline-block;margin-top:22px}.footer-grid{grid-template-columns:1fr 1fr}.copyright{display:block}.copyright span{display:block;margin-top:8px}}
    @media(max-width:520px){body{font-size:15px}.brand-name{font-size:15px}.brand-mark{width:32px;height:32px}.lang{display:none}h1{font-size:41px}.hero-copy{font-size:16px}.actions .btn{width:100%}.hero-stats{justify-content:space-between}.stat strong{font-size:20px}.cover-stage{padding:18px;min-height:280px}.cover-art{min-height:240px}.triple{grid-template-columns:1fr}.feature:first-child{grid-column:auto}.path-wrap{padding:22px}.path{grid-template-columns:1fr}.entry-list{grid-template-columns:1fr}.footer-grid{grid-template-columns:1fr;gap:28px}.fixed-inner{align-items:stretch}.fixed-cta p{display:none}.fixed-cta .btn{width:100%}}
    @media(prefers-reduced-motion:reduce){*,*:before,*:after{scroll-behavior:auto!important;transition:none!important}}

/* roulang page: category1 */
:root{
 --blue:#235b87;
 --blue-deep:#163c5b;
 --blue-soft:#e8f1f7;
 --ink:#1d2b38;
 --muted:#6c7c88;
 --paper:#f7f9fa;
 --sand:#f1ede5;
 --line:#dce5ea;
 --white:#fff;
 --accent:#c27b49;
 --radius:18px;
 --shadow:0 16px 42px rgba(29,58,78,.10);
 --shadow-sm:0 7px 20px rgba(29,58,78,.08);
 --ease:all .22s ease;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;font-family:"Noto Sans SC","PingFang SC","Microsoft YaHei",sans-serif;color:var(--ink);background:var(--paper);line-height:1.75;font-size:16px;padding-bottom:76px}
a{color:inherit;text-decoration:none}
img{display:block;max-width:100%}
button,input{font:inherit}
button{border:0;cursor:pointer}
button:focus-visible,a:focus-visible,input:focus-visible{outline:3px solid rgba(194,123,73,.55);outline-offset:3px}
.container{width:min(1180px,calc(100% - 40px));margin:auto}
.site-header{position:sticky;top:0;z-index:20;background:rgba(247,249,250,.97);border-bottom:1px solid var(--line);transition:var(--ease)}
.nav{height:78px;display:flex;align-items:center;justify-content:space-between;gap:28px}
.brand{display:flex;align-items:center;gap:11px;font-weight:800;letter-spacing:-.03em;white-space:nowrap}
.brand-mark{width:36px;height:36px;border-radius:11px;background:var(--blue);color:#fff;display:grid;place-items:center;font-size:14px}
.brand-name{font-size:18px;color:var(--blue-deep)}
.nav-links{display:flex;align-items:center;gap:8px;margin-left:auto}
.nav-links a{padding:10px 16px;border-radius:10px;color:var(--muted);font-size:14px;transition:var(--ease)}
.nav-links a:hover,.nav-links a.active{color:var(--blue);background:var(--blue-soft)}
.nav-end{display:flex;align-items:center;gap:12px}
.lang-switch{display:flex;align-items:center;padding:4px;border:1px solid var(--line);border-radius:999px;background:#fff;color:var(--muted);font-size:12px}
.lang-switch span{padding:5px 9px;border-radius:999px}
.lang-switch .current{background:var(--blue);color:#fff}
.menu-toggle{display:none;background:var(--blue-soft);color:var(--blue);border-radius:10px;width:42px;height:42px;font-size:20px}
h1,h2,h3,p{margin-top:0}
h1{font-size:clamp(38px,5vw,66px);line-height:1.16;letter-spacing:-.055em;margin:16px 0 22px;color:var(--blue-deep)}
h2{font-size:clamp(28px,3.2vw,42px);line-height:1.25;letter-spacing:-.035em;color:var(--blue-deep);margin-bottom:14px}
h3{font-size:19px;line-height:1.4;color:var(--blue-deep)}
.eyebrow,.kicker{display:inline-flex;align-items:center;gap:8px;color:var(--accent);font-size:12px;font-weight:800;letter-spacing:.14em}
.eyebrow:before{content:"";width:26px;height:2px;background:var(--accent)}
.hero{padding:66px 0 74px}
.hero-grid{display:grid;grid-template-columns:1.08fr .92fr;gap:70px;align-items:center}
.hero-copy{font-size:18px;color:var(--muted);max-width:640px}
.hero-actions{display:flex;gap:12px;flex-wrap:wrap;margin-top:30px}
.btn{min-height:48px;display:inline-flex;align-items:center;justify-content:center;padding:0 21px;border-radius:11px;font-size:14px;font-weight:700;transition:var(--ease);border:1px solid transparent}
.btn-primary{background:var(--blue);color:#fff;box-shadow:0 8px 18px rgba(35,91,135,.20)}
.btn-primary:hover{background:var(--blue-deep);transform:translateY(-2px);box-shadow:0 12px 24px rgba(35,91,135,.25)}
.btn-secondary{background:#fff;color:var(--blue);border-color:var(--line)}
.btn-secondary:hover{border-color:var(--blue);background:var(--blue-soft)}
.hero-stats{display:flex;gap:30px;margin-top:38px;padding-top:20px;border-top:1px solid var(--line)}
.stat strong{display:block;font-size:26px;color:var(--blue-deep);line-height:1.2}
.stat span{font-size:12px;color:var(--muted)}
.cover-stage{min-height:390px;position:relative;background:var(--sand);border-radius:24px;padding:26px;box-shadow:var(--shadow);overflow:hidden}
.cover-stage:before{content:"";position:absolute;inset:18px;border:1px solid rgba(35,91,135,.22);border-radius:17px}
.cover-top{position:relative;display:flex;justify-content:space-between;color:var(--blue);font-size:12px;font-weight:800}
.cover-art{position:absolute;left:14%;right:14%;top:86px;bottom:40px;border-radius:110px 110px 18px 18px;background:linear-gradient(150deg,#d9e8ef,#9bb8c7 52%,#526f80);overflow:hidden}
.cover-art:after{content:"";position:absolute;inset:0;background:repeating-linear-gradient(0deg,rgba(255,255,255,.08) 0 1px,transparent 1px 5px);mix-blend-mode:screen}
.cover-caption{position:absolute;bottom:27px;left:36px;z-index:1;color:#fff;font-size:13px;letter-spacing:.08em}
.progress-panel{position:absolute;right:24px;bottom:24px;width:190px;background:rgba(255,255,255,.94);padding:15px;border-radius:13px;box-shadow:var(--shadow-sm);font-size:12px;color:var(--muted)}
.progress-line{height:6px;background:var(--blue-soft);border-radius:99px;margin:9px 0 6px;overflow:hidden}
.progress-line i{display:block;width:68%;height:100%;background:var(--accent);border-radius:99px}
section{padding:92px 0}
.section-head{display:flex;justify-content:space-between;align-items:end;gap:30px;margin-bottom:34px}
.section-intro{max-width:590px;color:var(--muted)}
.filter-bar{display:flex;align-items:center;gap:12px;flex-wrap:wrap;padding:18px;background:#fff;border:1px solid var(--line);border-radius:14px;box-shadow:var(--shadow-sm);margin-bottom:34px}
.filter-label{font-size:13px;color:var(--muted);font-weight:700}
.filter-tags{display:flex;gap:8px;flex-wrap:wrap}
.filter-tag{padding:8px 13px;border:1px solid var(--line);border-radius:999px;background:#fff;color:var(--muted);font-size:13px;transition:var(--ease)}
.filter-tag:hover,.filter-tag.active{background:var(--blue-soft);border-color:#b7d0df;color:var(--blue)}
.search-box{margin-left:auto;display:flex;border:1px solid var(--line);border-radius:10px;overflow:hidden;background:var(--paper)}
.search-box input{width:170px;border:0;background:transparent;padding:9px 11px;outline:0;font-size:13px}
.search-box button{width:42px;background:var(--blue);color:#fff}
.editor-grid{display:grid;grid-template-columns:1.2fr .8fr;gap:22px;align-items:start}
.topic-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow-sm);overflow:hidden;transition:var(--ease)}
.topic-card:hover{transform:translateY(-4px);box-shadow:var(--shadow);border-color:#b8cdda}
.topic-card.large{grid-row:span 2}
.topic-cover{height:210px;background:var(--sand);position:relative;overflow:hidden}
.topic-card.large .topic-cover{height:350px}
.topic-cover:before{content:"";position:absolute;inset:18px;border:1px solid rgba(35,91,135,.24);border-radius:12px}
.topic-cover.one{background:linear-gradient(135deg,#d9e9ef 10%,#7896a8 90%)}
.topic-cover.two{background:linear-gradient(135deg,#eee5d8,#c49b79)}
.topic-cover.three{background:linear-gradient(135deg,#e3e8eb,#748b97)}
.cover-index{position:absolute;left:24px;top:22px;color:var(--blue-deep);font-size:12px;font-weight:800}
.cover-word{position:absolute;bottom:20px;left:24px;color:#fff;font-size:25px;font-weight:800;letter-spacing:.08em}
.topic-body{padding:23px}
.topic-body h3{margin:10px 0 8px}
.topic-body p{font-size:14px;color:var(--muted);margin-bottom:16px}
.badge{display:inline-flex;padding:5px 9px;border-radius:5px;background:var(--blue-soft);color:var(--blue);font-size:11px;font-weight:800}
.topic-meta{display:flex;justify-content:space-between;align-items:center;color:var(--muted);font-size:12px;border-top:1px solid var(--line);padding-top:13px}
.text-link{color:var(--blue);font-weight:800;font-size:13px}
.text-link:hover{color:var(--accent)}
.safety-section{background:var(--blue-soft)}
.safety-grid{display:grid;grid-template-columns:1fr 1fr;gap:22px}
.info-panel{background:#fff;padding:30px;border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow-sm)}
.info-list{list-style:none;margin:0;padding:0}
.info-list li{padding:13px 0;border-bottom:1px solid var(--line);display:flex;gap:12px;font-size:14px}
.info-list li:last-child{border-bottom:0}
.info-list b{color:var(--accent)}
.feedback-strip{display:grid;grid-template-columns:1.2fr .8fr;gap:22px;align-items:stretch}
.quote-box{background:var(--blue-deep);color:#fff;border-radius:var(--radius);padding:34px}
.quote-box p{font-size:20px;line-height:1.65;margin-bottom:15px}
.quote-box small{color:#b9ced9}
.update-box{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:25px;box-shadow:var(--shadow-sm)}
.update-list{list-style:none;margin:0;padding:0}
.update-list li{display:flex;justify-content:space-between;gap:15px;padding:13px 0;border-bottom:1px solid var(--line);font-size:14px}
.update-list li:last-child{border:0}
.update-list time{color:var(--muted);white-space:nowrap;font-size:12px}
.faq-list{max-width:840px;margin:auto;border-top:1px solid var(--line)}
.faq-item{border-bottom:1px solid var(--line)}
.faq-q{width:100%;background:none;text-align:left;display:flex;justify-content:space-between;gap:20px;padding:22px 0;color:var(--blue-deep);font-weight:700}
.faq-q i{font-style:normal;color:var(--accent);font-size:22px;transition:var(--ease)}
.faq-q[aria-expanded=true] i{transform:rotate(45deg)}
.faq-a{display:none;color:var(--muted);font-size:14px;padding:0 45px 22px 0}
.faq-a.open{display:block}
.cta-box{background:var(--sand);border:1px solid #e6ddd0;border-radius:22px;padding:42px;display:flex;justify-content:space-between;gap:25px;align-items:center}
.cta-box p{color:var(--muted);max-width:650px;margin-bottom:0}
.site-footer{background:#18384f;color:#d9e6ed;padding:54px 0 34px}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr;gap:45px}
.footer-brand{color:#fff;font-size:19px;font-weight:800}
.footer-copy{font-size:13px;color:#a9c0cb;margin-top:14px;max-width:360px}
.footer-title{font-size:13px;color:#fff;font-weight:800;margin-bottom:14px}
.footer-links{display:flex;flex-direction:column;gap:8px;font-size:13px;color:#b6cbd4}
.footer-links a:hover{color:#fff}
.copyright{border-top:1px solid rgba(255,255,255,.15);margin-top:40px;padding-top:22px;color:#9eb6c1;font-size:12px;display:flex;justify-content:space-between;gap:20px}
.fixed-cta{position:fixed;z-index:30;bottom:0;left:0;right:0;background:rgba(255,255,255,.97);border-top:1px solid var(--line);box-shadow:0 -8px 25px rgba(20,50,70,.08);padding:12px 0}
.fixed-inner{display:flex;align-items:center;justify-content:space-between;gap:20px}
.fixed-cta p{font-size:13px;color:var(--muted);margin:0}
.fixed-cta strong{color:var(--blue-deep)}
.breadcrumb{font-size:13px;color:var(--muted);margin-bottom:24px}
.breadcrumb a:hover{color:var(--blue)}
@media(max-width:992px){
 .hero-grid{grid-template-columns:1fr;gap:38px}
 .cover-stage{min-height:360px}
 .editor-grid,.feedback-strip{grid-template-columns:1fr}
 .topic-card.large{grid-row:auto}
 .topic-card.large .topic-cover{height:260px}
}
@media(max-width:768px){
 .container{width:min(100% - 30px,620px)}
 .nav{height:68px}
 .nav-links{display:none;position:absolute;top:68px;left:15px;right:15px;background:#fff;border:1px solid var(--line);padding:12px;border-radius:14px;box-shadow:var(--shadow)}
 .nav-links.open{display:flex;flex-direction:column;align-items:stretch}
 .nav-links a{display:block}
 .menu-toggle{display:block}
 .hero{padding:50px 0 58px}
 section{padding:68px 0}
 .section-head{display:block}
 .section-head .section-intro{margin-top:12px}
 .safety-grid{grid-template-columns:1fr}
 .footer-grid{grid-template-columns:1fr 1fr;gap:30px}
 .footer-grid>div:first-child{grid-column:1/-1}
 .copyright{display:block}
 .copyright span{display:block;margin-bottom:7px}
 .search-box{margin-left:0;width:100%}
 .search-box input{width:100%}
}
@media(max-width:520px){
 h1{font-size:40px}
 .brand-name{font-size:15px}
 .nav-end{gap:7px}
 .hero-copy{font-size:16px}
 .hero-stats{gap:17px;flex-wrap:wrap}
 .cover-stage{min-height:300px;padding:20px}
 .cover-art{top:70px;left:12%;right:12%;bottom:30px}
 .progress-panel{right:15px;bottom:15px;width:160px}
 .filter-bar{align-items:flex-start}
 .filter-tags{overflow:auto;flex-wrap:nowrap;width:100%;padding-bottom:3px}
 .filter-tag{white-space:nowrap}
 .cta-box{padding:28px;display:block}
 .cta-box .btn{margin-top:20px;width:100%}
 .footer-grid{grid-template-columns:1fr}
 .footer-grid>div:first-child{grid-column:auto}
 .fixed-inner{align-items:stretch}
 .fixed-cta p{font-size:12px;line-height:1.5}
 .fixed-cta .btn{min-height:44px;padding:0 13px}
}
@media(prefers-reduced-motion:reduce){
 *,*:before,*:after{scroll-behavior:auto!important;transition:none!important}
}