/* roulang page: index */
:root{
            --cream:#fffaf0;
            --paper:#fffdf8;
            --ink:#2d1831;
            --muted:#766878;
            --line:#eadfd4;
            --yellow:#ffc83d;
            --orange:#f47f3c;
            --berry:#652452;
            --berry-deep:#34152f;
            --pink:#f5d9dc;
            --green:#6d8d68;
            --shadow:0 18px 50px rgba(76,34,45,.10);
            --soft-shadow:0 10px 28px rgba(76,34,45,.08);
            --radius:28px;
        }
        *,*:before,*:after{box-sizing:border-box}
        html{scroll-behavior:smooth}
        body{margin:0;background:var(--cream);color:var(--ink);font-family:"Noto Sans CJK SC","Source Han Sans SC","PingFang SC","Microsoft YaHei",sans-serif;font-size:16px;line-height:1.75}
        a{color:inherit;text-decoration:none}
        img{max-width:100%;display:block}
        button,input{font:inherit}
        .container{max-width:1180px}
        .site-header{position:sticky;top:0;z-index:20;background:rgba(255,250,240,.94);border-bottom:1px solid rgba(234,223,212,.9);backdrop-filter:blur(12px)}
        .navbar{min-height:76px}
        .brand{display:flex;align-items:center;gap:10px;font-weight:800;font-size:22px;color:var(--berry)}
        .brand-mark{width:38px;height:38px;border-radius:50%;display:grid;place-items:center;background:linear-gradient(135deg,var(--yellow),var(--orange),var(--berry));color:#fff;font-size:17px;box-shadow:0 7px 18px rgba(244,127,60,.28)}
        .nav-link{color:#654d61!important;font-weight:600;padding:10px 14px!important;border-radius:12px;transition:.25s}
        .nav-link:hover,.nav-link.active{background:#f8e8d0;color:var(--berry)!important}
        .nav-cta,.btn-main{border:0;background:linear-gradient(110deg,var(--yellow),var(--orange));color:#3a1d29;font-weight:800;border-radius:14px;padding:12px 20px;box-shadow:0 9px 20px rgba(244,127,60,.2);transition:.25s}
        .nav-cta:hover,.btn-main:hover{transform:translateY(-2px);filter:saturate(1.08);color:#301927}
        .navbar-toggler{border:1px solid var(--line);padding:8px 11px;border-radius:12px}
        .navbar-toggler:focus{box-shadow:0 0 0 3px rgba(244,127,60,.2)}
        section{padding:94px 0;position:relative}
        .section-soft{background:#fff7eb}
        .section-dark{background:var(--berry-deep);color:#fff7eb}
        .eyebrow{display:inline-flex;align-items:center;gap:8px;color:var(--orange);font-size:13px;font-weight:800;letter-spacing:.12em;text-transform:uppercase;margin-bottom:14px}
        .eyebrow:before{content:"";width:24px;height:3px;border-radius:9px;background:var(--orange)}
        h1,h2,h3{font-weight:800;letter-spacing:-.035em;line-height:1.2}
        h1{font-size:clamp(38px,5.4vw,70px);margin:0 0 24px;color:var(--berry)}
        h2{font-size:clamp(28px,3.2vw,42px);margin:0 0 18px}
        h3{font-size:20px;margin:0 0 9px}
        .section-heading{max-width:720px;margin-bottom:42px}
        .section-heading p{color:var(--muted);margin:0;font-size:17px}
        .hero{padding:72px 0 86px;overflow:hidden;background:linear-gradient(120deg,#fff9e9 0%,#fff5e9 54%,#f7e6e6 100%)}
        .hero:after{content:"";position:absolute;width:340px;height:340px;border:1px solid rgba(101,36,82,.12);border-radius:50%;right:-100px;top:40px}
        .hero-copy{position:relative;z-index:1}
        .hero-copy p{font-size:18px;max-width:650px;color:#675667;margin-bottom:28px}
        .search-panel{background:rgba(255,255,255,.82);border:1px solid rgba(234,223,212,.95);border-radius:20px;padding:9px;max-width:650px;box-shadow:var(--soft-shadow)}
        .search-panel .form-control{border:0;background:transparent;height:50px;padding:0 15px;color:var(--ink)}
        .search-panel .form-control:focus{box-shadow:none}
        .search-panel .btn{height:50px;border-radius:14px}
        .quick-links{display:flex;gap:10px;flex-wrap:wrap;margin-top:18px}
        .tag{display:inline-flex;align-items:center;border:1px solid var(--line);background:#fffaf6;padding:5px 12px;border-radius:99px;color:#715465;font-size:13px;transition:.2s}
        .tag:hover{background:#f8dfb3;color:var(--berry);border-color:#edc87d}
        .hero-visual{position:relative;min-height:410px;border-radius:34px;overflow:hidden;background:url('/assets/images/57b24a3021dc28d1.jpg') center/cover;box-shadow:var(--shadow)}
        .hero-visual:before{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(48,17,45,.03),rgba(48,17,45,.78))}
        .hero-info{position:absolute;left:28px;right:28px;bottom:25px;color:#fff}
        .hero-info h2{font-size:28px;margin-bottom:8px}
        .play{width:52px;height:52px;border-radius:50%;display:grid;place-items:center;background:linear-gradient(135deg,var(--yellow),var(--orange));color:var(--berry-deep);font-size:20px;margin-bottom:20px;box-shadow:0 8px 20px rgba(0,0,0,.2)}
        .question-grid{display:grid;grid-template-columns:1.2fr .9fr 1fr .85fr;gap:16px}
        .question-card,.content-card,.topic-card,.quote-card,.audience-card,.info-card,.metric-card{background:var(--paper);border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--soft-shadow);transition:.25s}
        .question-card:hover,.content-card:hover,.topic-card:hover,.quote-card:hover,.audience-card:hover,.info-card:hover{transform:translateY(-5px);box-shadow:var(--shadow)}
        .question-card{padding:25px;min-height:190px}
        .question-card:nth-child(2){margin-top:28px;background:#f9e7d1}.question-card:nth-child(3){background:#f3dfe3}.question-card:nth-child(4){margin-top:28px;background:#eee5d8}
        .number{font-size:13px;color:var(--orange);font-weight:800;display:block;margin-bottom:22px}
        .question-card p,.content-card p,.audience-card p,.info-card p{color:var(--muted);font-size:14px;margin:0}
        .flow{display:grid;grid-template-columns:repeat(4,1fr);gap:0;position:relative}
        .flow:before{content:"";position:absolute;left:10%;right:10%;top:31px;border-top:2px dashed #e4b77b}
        .flow-step{position:relative;padding:0 19px;text-align:center}
        .flow-dot{width:64px;height:64px;border-radius:50%;display:grid;place-items:center;margin:0 auto 19px;background:var(--yellow);color:var(--berry);font-weight:900;border:7px solid var(--cream);position:relative}
        .flow-step:nth-child(2) .flow-dot{background:#f5a35b}.flow-step:nth-child(3) .flow-dot{background:#d88aa1}.flow-step:nth-child(4) .flow-dot{background:#9f78a2;color:#fff}
        .flow-step p{color:var(--muted);font-size:14px}
        .stats-band{background:linear-gradient(110deg,var(--berry),#8b3e64);border-radius:32px;padding:32px;color:#fff;box-shadow:var(--shadow)}
        .stat{padding:8px 25px;border-right:1px solid rgba(255,255,255,.22)}
        .stat:last-child{border:0}.stat strong{font-size:32px;display:block;color:var(--yellow);line-height:1.1}.stat span{font-size:13px;color:#f8dce0}
        .feature-layout{display:grid;grid-template-columns:1.12fr .88fr;gap:22px}
        .video-card{border-radius:var(--radius);overflow:hidden;background:var(--paper);border:1px solid var(--line);box-shadow:var(--soft-shadow);transition:.25s}
        .video-card:hover{transform:translateY(-5px);box-shadow:var(--shadow)}
        .cover{aspect-ratio:16/9;background-size:cover;background-position:center;position:relative;overflow:hidden}
        .cover:after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,transparent 44%,rgba(45,24,49,.72))}
        .cover-main{background-image:url('/assets/images/e06df6991289979b.jpg')}.cover-small.one{background-image:url('/assets/images/f5c311dae29a9ba3.jpg')}.cover-small.two{background-image:url('/assets/images/767c908d0b02d866.jpg')}
        .cover .play{position:absolute;left:20px;bottom:17px;width:43px;height:43px;margin:0;font-size:16px;z-index:2}
        .duration{position:absolute;right:15px;bottom:17px;z-index:2;color:#fff;background:rgba(45,24,49,.7);padding:3px 9px;border-radius:8px;font-size:12px}
        .video-body{padding:19px 21px 22px}.video-body h3{font-size:21px}.video-body p{color:var(--muted);font-size:14px;margin:0}
        .mini-stack{display:grid;gap:22px}.mini-stack .video-card{display:grid;grid-template-columns:42% 58%;align-items:stretch}.mini-stack .cover{height:100%;min-height:150px}.mini-stack .video-body{padding:18px}.mini-stack h3{font-size:18px}
        .quote-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}.quote-card{padding:28px;background:#fffaf5}.quote-mark{font-size:45px;line-height:.7;color:var(--orange);font-family:Georgia;margin-bottom:18px}.quote-card p{color:#5f4a5a;margin:0 0 18px}.quote-card small{color:var(--muted)}
        .audience-grid{display:grid;grid-template-columns:1fr 1fr 1.25fr;gap:18px}.audience-card{padding:28px;min-height:225px}.audience-card.feature{background:linear-gradient(145deg,#fff0d1,#f4d9de);position:relative;overflow:hidden}.audience-card.feature:after{content:"";position:absolute;width:160px;height:160px;border:18px solid rgba(101,36,82,.08);border-radius:50%;right:-50px;bottom:-48px}.audience-label{color:var(--orange);font-size:12px;font-weight:800;margin-bottom:35px}
        .topic-grid{display:grid;grid-template-columns:1.2fr .8fr .8fr;gap:18px}.topic-card{padding:24px;min-height:180px;position:relative;overflow:hidden}.topic-card.large{grid-row:span 2;min-height:378px;background:linear-gradient(145deg,#692956,#b04f68);color:#fff}.topic-card.large p{color:#f6dce0}.topic-card:nth-child(2){background:#ffe6ad}.topic-card:nth-child(3){background:#e9d9e8}.topic-card:nth-child(4){background:#dce7d3}.topic-card:nth-child(5){background:#f6d4cc}.topic-card p{color:#6b5665;font-size:14px}
        .info-layout{display:grid;grid-template-columns:1.1fr .9fr;gap:20px}.info-feature{padding:31px;border-radius:var(--radius);background:linear-gradient(135deg,#4d1f48,#8e4168);color:#fff;min-height:300px}.info-feature p{color:#f5dfe2}.info-list{display:grid;gap:12px}.info-card{display:flex;align-items:center;gap:18px;padding:18px 20px}.info-icon{width:42px;height:42px;flex:0 0 42px;display:grid;place-items:center;border-radius:13px;background:#f7e0b0;color:var(--berry);font-weight:800}.info-card h3{font-size:17px;margin:0}.info-card small{color:var(--muted)}
        .update-panel{background:#fffdf8;border:1px solid var(--line);border-radius:32px;padding:30px;box-shadow:var(--soft-shadow)}.update-row{display:grid;grid-template-columns:145px 1fr 90px;gap:20px;align-items:center;padding:18px 0;border-bottom:1px solid var(--line)}.update-row:last-child{border:0}.update-name{font-weight:700}.progress{height:9px;background:#f2e7dc;border-radius:99px}.progress-bar{background:linear-gradient(90deg,var(--yellow),var(--orange),var(--berry));border-radius:99px}.update-state{font-size:13px;color:var(--green);text-align:right}
        .accordion-item{background:transparent;border:0;border-bottom:1px solid var(--line)!important}.accordion-button{background:transparent!important;color:var(--ink)!important;font-weight:700;padding:22px 4px;box-shadow:none!important}.accordion-button:after{filter:hue-rotate(280deg)}.accordion-body{color:var(--muted);padding:0 4px 22px;font-size:15px}
        .cta-box{border-radius:34px;padding:55px 58px;background:linear-gradient(115deg,#ffc43a,#f17d46 55%,#75305c);color:#fff;box-shadow:var(--shadow);overflow:hidden;position:relative}.cta-box:after{content:"";position:absolute;width:300px;height:300px;border:30px solid rgba(255,255,255,.1);border-radius:50%;right:-70px;top:-100px}.cta-box h2{max-width:650px}.cta-box p{max-width:650px;color:#fff1e4}.cta-box .search-panel{position:relative;z-index:1;max-width:620px}
        footer{background:#2c142c;color:#f7e9df;padding:62px 0 28px}.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:30px}.footer-brand p{color:#cdb5c5;max-width:300px;font-size:14px}.footer-title{font-weight:800;margin-bottom:14px;color:#fff}.footer-links{display:grid;gap:8px}.footer-links a{color:#cdb5c5;font-size:14px;transition:.2s}.footer-links a:hover{color:var(--yellow)}.copyright{border-top:1px solid rgba(255,255,255,.14);margin-top:40px;padding-top:20px;color:#b99fb2;font-size:13px}
        :focus-visible{outline:3px solid rgba(244,127,60,.55);outline-offset:3px}
        @media (max-width:1199px){.container{max-width:960px}.question-grid{grid-template-columns:repeat(2,1fr)}.question-card:nth-child(2),.question-card:nth-child(4){margin-top:0}}
        @media (max-width:991px){section{padding:72px 0}.hero{padding:58px 0 70px}.hero-visual{min-height:350px;margin-top:30px}.feature-layout,.info-layout{grid-template-columns:1fr}.footer-grid{grid-template-columns:2fr 1fr 1fr}.navbar-collapse{padding:18px 0}.nav-cta{display:inline-block;margin-top:10px}.audience-grid{grid-template-columns:1fr 1fr}.audience-card.feature{grid-column:span 2}.topic-grid{grid-template-columns:1fr 1fr}.topic-card.large{grid-row:span 1;min-height:240px}}
        @media (max-width:767px){body{font-size:15px}section{padding:58px 0}.hero-copy p{font-size:16px}.flow{grid-template-columns:1fr 1fr;gap:25px}.flow:before{display:none}.flow-step{padding:0 8px}.quote-grid{grid-template-columns:1fr}.stats-band .row{row-gap:20px}.stat{border-right:0;border-bottom:1px solid rgba(255,255,255,.2);padding-bottom:17px}.stat:last-child{border:0}.update-row{grid-template-columns:1fr;gap:8px}.update-state{text-align:left}.footer-grid{grid-template-columns:1fr 1fr}.cta-box{padding:35px 24px}.topic-card.large{grid-column:span 2}.topic-grid{gap:12px}.audience-grid{grid-template-columns:1fr}.audience-card.feature{grid-column:auto}}
        @media (max-width:575px){h1{font-size:38px}.question-grid,.topic-grid{grid-template-columns:1fr}.topic-card.large{grid-column:auto;min-height:220px}.search-panel{padding:8px}.search-panel form{display:flex;flex-direction:column;gap:8px}.search-panel .btn{width:100%}.mini-stack .video-card{display:block}.mini-stack .cover{min-height:190px}.footer-grid{grid-template-columns:1fr}.hero-visual{min-height:290px}.cta-box h2{font-size:29px}}

/* 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}