/* roulang page: index */
:root{
            --bg:#151515;
            --bg-soft:#1d1d1b;
            --panel:#242422;
            --panel-light:#2b2a27;
            --cream:#f4efe5;
            --muted:#aaa59b;
            --line:rgba(244,239,229,.12);
            --orange:#f2a51a;
            --orange-deep:#d87b0d;
            --lime:#c6c77c;
            --radius:16px;
            --shadow:0 18px 45px rgba(0,0,0,.28);
            --container:1240px;
        }
        *{box-sizing:border-box;margin:0;padding:0}
        html{scroll-behavior:smooth}
        body{
            background:var(--bg);
            color:var(--cream);
            font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei","Noto Sans CJK SC",Arial,sans-serif;
            line-height:1.75;
            font-size:15px;
            overflow-x:hidden;
        }
        a{color:inherit;text-decoration:none}
        img{display:block;max-width:100%;height:auto}
        button,input{font:inherit}
        button{cursor:pointer}
        :focus-visible{outline:3px solid var(--orange);outline-offset:3px}
        .container{width:min(var(--container),calc(100% - 48px));margin:0 auto}
        .eyebrow{
            color:var(--orange);
            font-size:12px;
            font-weight:700;
            letter-spacing:.16em;
            text-transform:uppercase;
            margin-bottom:12px;
        }
        .section{padding:104px 0;border-top:1px solid var(--line)}
        .section-head{display:flex;justify-content:space-between;gap:28px;align-items:end;margin-bottom:38px}
        .section-head h2{font-size:clamp(25px,3vw,38px);line-height:1.2;letter-spacing:-.03em}
        .section-head p{max-width:550px;color:var(--muted);font-size:15px}
        .btn{
            min-height:46px;
            display:inline-flex;
            align-items:center;
            justify-content:center;
            gap:9px;
            padding:0 20px;
            border-radius:9px;
            border:1px solid transparent;
            font-weight:700;
            transition:.25s ease;
        }
        .btn-primary{background:var(--orange);color:#17130b;box-shadow:0 8px 20px rgba(242,165,26,.18)}
        .btn-primary:hover{background:#ffc04b;transform:translateY(-2px)}
        .btn-ghost{border-color:rgba(244,239,229,.25);color:var(--cream);background:transparent}
        .btn-ghost:hover{border-color:var(--orange);color:var(--orange);transform:translateY(-2px)}
        .tag,.status{
            display:inline-flex;align-items:center;gap:6px;
            padding:4px 9px;border-radius:5px;
            background:rgba(242,165,26,.14);color:#ffc35b;
            font-size:12px;line-height:1.4;
        }
        .tag-muted{background:rgba(244,239,229,.08);color:var(--muted)}
        .site-header{
            position:sticky;top:0;z-index:20;
            background:rgba(21,21,21,.94);
            border-bottom:1px solid var(--line);
            backdrop-filter:blur(12px);
        }
        .nav-wrap{height:76px;display:flex;align-items:center;gap:30px}
        .logo{display:flex;align-items:center;gap:10px;font-size:19px;font-weight:800;white-space:nowrap}
        .logo-mark{width:31px;height:31px;border:2px solid var(--orange);border-radius:50%;display:grid;place-items:center;color:var(--orange);font-size:13px}
        .logo-mark:after{content:"";display:block;margin-left:3px;border-left:8px solid var(--orange);border-top:5px solid transparent;border-bottom:5px solid transparent}
        .nav-links{display:flex;align-items:center;gap:4px;margin-left:auto}
        .nav-links a{padding:9px 14px;color:var(--muted);border-radius:7px;transition:.2s}
        .nav-links a:hover,.nav-links a.active{color:var(--cream);background:rgba(244,239,229,.07)}
        .nav-links a.active{box-shadow:inset 0 -2px var(--orange)}
        .nav-action{margin-left:8px}
        .menu-toggle{display:none;background:none;color:var(--cream);border:1px solid var(--line);border-radius:8px;width:44px;height:44px}
        .hero{
            min-height:690px;
            display:flex;align-items:center;
            position:relative;overflow:hidden;
            background:
              linear-gradient(90deg,rgba(21,21,21,.98) 0%,rgba(21,21,21,.86) 42%,rgba(21,21,21,.35) 100%),
              url('/assets/images/cfb4abcc4292ff13.jpg') center/cover;
        }
        .hero:after{content:"";position:absolute;inset:auto 0 0;height:130px;background:linear-gradient(transparent,var(--bg));pointer-events:none}
        .hero-inner{position:relative;z-index:1;display:grid;grid-template-columns:1fr 1.08fr;gap:65px;align-items:center;padding:80px 0}
        .hero-copy h1{font-size:clamp(38px,5.2vw,70px);line-height:1.12;letter-spacing:-.055em;max-width:690px;margin-bottom:24px}
        .hero-copy h1 span{color:var(--orange)}
        .hero-copy p{font-size:17px;color:#d0cbc1;max-width:620px;line-height:1.9;margin-bottom:30px}
        .hero-actions{display:flex;gap:12px;flex-wrap:wrap}
        .hero-note{display:flex;gap:25px;margin-top:34px;color:var(--muted);font-size:13px}
        .hero-note strong{display:block;color:var(--cream);font-size:18px;line-height:1.2}
        .hero-stage{position:relative}
        .stage-frame{background:#292824;border:1px solid rgba(244,239,229,.16);border-radius:20px;padding:12px;box-shadow:var(--shadow);transform:rotate(1.2deg)}
        .stage-image{aspect-ratio:16/10;border-radius:12px;overflow:hidden;position:relative;background:#383631}
        .stage-image img{width:100%;height:100%;object-fit:cover;filter:saturate(.8)}
        .stage-image:after{content:"";position:absolute;inset:0;background:linear-gradient(0deg,rgba(12,12,12,.8),transparent 60%)}
        .play-button{position:absolute;z-index:2;left:50%;top:50%;transform:translate(-50%,-50%);width:66px;height:66px;border-radius:50%;border:1px solid rgba(255,255,255,.6);background:rgba(242,165,26,.95);color:#17130b;font-size:23px;padding-left:5px;box-shadow:0 0 0 10px rgba(242,165,26,.14)}
        .stage-caption{position:absolute;left:22px;right:22px;bottom:18px;z-index:2;display:flex;justify-content:space-between;align-items:end}
        .stage-caption strong{font-size:18px}.stage-caption small{color:#d0cbc1}
        .stage-bar{display:flex;gap:8px;margin-top:12px}.stage-bar span{height:4px;background:#59554e;border-radius:3px;flex:1}.stage-bar span:first-child{background:var(--orange);flex:1.8}
        .function-layout{display:grid;grid-template-columns:1.12fr .88fr;gap:20px}
        .feature-panel{padding:34px;border:1px solid var(--line);border-radius:var(--radius);background:linear-gradient(145deg,#2c2b27,#1e1e1c);min-height:300px;position:relative;overflow:hidden}
        .feature-panel:after{content:"播放";position:absolute;right:-10px;bottom:-30px;font-size:130px;font-weight:800;color:rgba(242,165,26,.06)}
        .feature-panel h3{font-size:26px;margin:18px 0 12px}.feature-panel p{color:var(--muted);max-width:450px}
        .feature-list{display:grid;gap:10px}
        .feature-item{display:flex;align-items:center;gap:16px;padding:19px 20px;background:var(--panel);border:1px solid var(--line);border-radius:12px;transition:.25s}
        .feature-item:hover{border-color:rgba(242,165,26,.5);transform:translateX(4px)}
        .feature-icon{width:36px;height:36px;border-radius:9px;background:rgba(242,165,26,.14);color:var(--orange);display:grid;place-items:center;font-weight:800}
        .feature-item h4{font-size:16px}.feature-item p{font-size:13px;color:var(--muted)}
        .discover{background:var(--bg-soft)}
        .filter-row{display:flex;gap:10px;flex-wrap:wrap;margin-bottom:25px}
        .filter{padding:9px 16px;border:1px solid var(--line);border-radius:7px;background:transparent;color:var(--muted);transition:.2s}
        .filter:hover,.filter.selected{background:var(--orange);color:#17130b;border-color:var(--orange)}
        .content-rail{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}
        .video-card{background:var(--panel);border:1px solid var(--line);border-radius:14px;overflow:hidden;transition:.25s}
        .video-card:hover{transform:translateY(-5px);border-color:rgba(242,165,26,.45);box-shadow:var(--shadow)}
        .thumb{aspect-ratio:16/10;position:relative;overflow:hidden;background:#33312c}
        .thumb img{width:100%;height:100%;object-fit:cover;transition:.35s}
        .video-card:hover .thumb img{transform:scale(1.03)}
        .thumb:after{content:"";position:absolute;inset:35% 0 0;background:linear-gradient(transparent,rgba(0,0,0,.72))}
        .thumb .tag{position:absolute;z-index:2;top:10px;left:10px}.duration{position:absolute;z-index:2;right:10px;bottom:9px;background:rgba(0,0,0,.7);padding:2px 7px;border-radius:4px;font-size:12px}
        .card-body{padding:15px}.card-body h3{font-size:16px;line-height:1.4;margin-bottom:6px}.card-body p{font-size:13px;color:var(--muted);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
        .card-meta{display:flex;justify-content:space-between;color:#837f77;font-size:12px;margin-top:13px}
        .scenes{background:#191918}
        .scene-grid{display:grid;grid-template-columns:repeat(4,1fr);border-top:1px solid var(--line);border-left:1px solid var(--line)}
        .scene{padding:26px 22px;min-height:205px;border-right:1px solid var(--line);border-bottom:1px solid var(--line);transition:.25s}
        .scene:hover{background:#24231f}.scene-number{color:var(--orange);font-size:12px;font-weight:bold}.scene h3{font-size:19px;margin:25px 0 8px}.scene p{color:var(--muted);font-size:13px}
        .devices{display:grid;grid-template-columns:.9fr 1.1fr;gap:45px;align-items:center}
        .device-copy p{color:var(--muted);max-width:480px;margin:15px 0 25px}
        .device-points{display:grid;grid-template-columns:1fr 1fr;gap:12px}.device-point{border-left:2px solid var(--orange);padding-left:13px;color:#d7d1c6;font-size:13px}
        .device-art{min-height:330px;background:linear-gradient(135deg,#24231f,#171717);border:1px solid var(--line);border-radius:20px;display:flex;align-items:center;justify-content:center;gap:15px;padding:28px}
        .device{background:#0d0d0d;border:6px solid #49463f;border-radius:18px;box-shadow:0 15px 30px #0008;overflow:hidden}
        .device.phone{width:130px;height:245px}.device.screen{width:300px;height:190px;border-radius:11px}
        .device img{width:100%;height:100%;object-fit:cover;opacity:.72}
        .demo{background:var(--bg-soft)}
        .demo-layout{display:grid;grid-template-columns:1.35fr .65fr;gap:20px}
        .demo-main{border-radius:16px;overflow:hidden;position:relative;min-height:390px;border:1px solid var(--line);background:#292722}
        .demo-main img{width:100%;height:100%;min-height:390px;object-fit:cover;opacity:.66}
        .demo-main .demo-label{position:absolute;left:27px;bottom:25px;max-width:330px}.demo-label h3{font-size:24px;margin:10px 0}.demo-label p{color:#d0cbc1;font-size:13px}
        .demo-side{display:grid;gap:14px}.demo-note{padding:22px;background:var(--panel);border:1px solid var(--line);border-radius:13px}.demo-note h3{font-size:17px;margin:8px 0}.demo-note p{color:var(--muted);font-size:13px}
        .cases{display:grid;grid-template-columns:1fr 1fr;gap:16px}
        .case{padding:26px;border:1px solid var(--line);background:var(--panel);border-radius:14px}.case-head{display:flex;justify-content:space-between;gap:15px}.case h3{font-size:19px;margin:18px 0 8px}.case p{color:var(--muted);font-size:14px}.case-foot{margin-top:21px;padding-top:15px;border-top:1px solid var(--line);font-size:13px;color:#d2ccc1}
        .topics{background:var(--bg-soft)}
        .topic-layout{display:grid;grid-template-columns:1.25fr .75fr;gap:16px}.topic-feature{min-height:340px;position:relative;border-radius:16px;overflow:hidden;border:1px solid var(--line)}.topic-feature img{width:100%;height:100%;object-fit:cover}.topic-feature:after{content:"";position:absolute;inset:30% 0 0;background:linear-gradient(transparent,#111)}.topic-content{position:absolute;z-index:2;left:25px;bottom:23px}.topic-content h3{font-size:25px;margin:9px 0}.topic-content p{color:#d0cbc1;font-size:13px}
        .topic-list{display:grid;gap:12px}.topic-mini{display:flex;gap:15px;padding:15px;background:var(--panel);border:1px solid var(--line);border-radius:12px;align-items:center}.topic-mini img{width:110px;height:75px;border-radius:8px;object-fit:cover}.topic-mini h3{font-size:16px}.topic-mini p{color:var(--muted);font-size:12px;margin-top:3px}
        .plans{display:grid;grid-template-columns:1fr 1fr 1fr;gap:15px;align-items:stretch}.plan{padding:27px;background:var(--panel);border:1px solid var(--line);border-radius:14px}.plan.featured{border-color:var(--orange);background:#29251d}.plan h3{font-size:20px}.plan .plan-mark{color:var(--orange);font-size:12px;margin:10px 0 18px}.plan ul{list-style:none;color:var(--muted);font-size:13px}.plan li{padding:8px 0;border-bottom:1px solid var(--line)}.plan li:before{content:"✓";color:var(--orange);margin-right:8px}
        .reviews{background:#20201d}.review-grid{columns:3 260px;column-gap:16px}.review{break-inside:avoid;margin-bottom:16px;padding:22px;background:var(--panel);border:1px solid var(--line);border-radius:13px}.stars{color:var(--orange);letter-spacing:3px;font-size:13px}.review p{margin:12px 0;color:#ddd6cb;font-size:14px}.review small{color:var(--muted)}
        .voice{display:grid;grid-template-columns:1.35fr .65fr;gap:35px;align-items:center}.quote{font-size:clamp(24px,3vw,39px);line-height:1.4;letter-spacing:-.03em}.quote-mark{font-size:70px;color:var(--orange);line-height:.5}.voice-tags{display:flex;flex-wrap:wrap;gap:10px}.voice-tags span{padding:10px 13px;border:1px solid var(--line);border-radius:7px;color:#d4cec3;font-size:13px}.voice-tags b{color:var(--orange);display:block;font-size:19px}
        .guide{background:var(--bg-soft)}.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:0}.step{padding:25px;border-top:2px solid #4a4740;position:relative}.step:first-child{border-color:var(--orange)}.step-number{color:var(--orange);font-weight:800}.step h3{font-size:18px;margin:14px 0 7px}.step p{color:var(--muted);font-size:13px}
        .news-layout{display:grid;grid-template-columns:1fr .9fr;gap:18px}.news-feature{padding:28px;border-radius:15px;min-height:260px;background:linear-gradient(130deg,rgba(20,20,20,.3),rgba(20,20,20,.9)),url('/assets/images/7d05a4270bb9e951.jpg') center/cover;display:flex;flex-direction:column;justify-content:end}.news-feature h3{font-size:25px;margin:9px 0}.news-feature p{color:#d1cbc0;font-size:13px}.news-list{display:grid;gap:10px}.news-item{display:flex;justify-content:space-between;gap:15px;padding:17px 0;border-bottom:1px solid var(--line)}.news-item h3{font-size:15px}.news-item small{color:var(--muted);white-space:nowrap}
        .final-block{background:linear-gradient(110deg,#9a5a09,#d28716 55%,#f2a51a);color:#1b160d;border-top:0}.final-block .section-head p{color:#392911}.final-actions{display:flex;gap:12px}.final-block .btn-primary{background:#17130d;color:var(--cream)}.final-block .btn-ghost{border-color:#4e300c;color:#2b1e0b}
        .faq-wrap{display:grid;grid-template-columns:.8fr 1.2fr;gap:45px}.faq-intro p{color:var(--muted);margin-top:15px}.faq-list{border-top:1px solid var(--line)}.faq-item{border-bottom:1px solid var(--line)}.faq-q{width:100%;background:none;border:0;color:var(--cream);display:flex;justify-content:space-between;text-align:left;padding:19px 0;font-weight:700}.faq-q span:last-child{color:var(--orange);font-size:22px}.faq-a{display:none;color:var(--muted);font-size:14px;padding:0 35px 18px 0}.faq-item.open .faq-a{display:block}.faq-item.open .faq-q span:last-child{transform:rotate(45deg)}
        footer{padding:55px 0 25px;background:#101010;border-top:1px solid var(--line)}.footer-main{display:grid;grid-template-columns:1.4fr .7fr .7fr;gap:50px;padding-bottom:40px}.footer-brand p{color:var(--muted);max-width:330px;margin-top:14px;font-size:13px}.footer-col h3{font-size:14px;margin-bottom:14px}.footer-col a{display:block;color:var(--muted);font-size:13px;margin:8px 0}.footer-col a:hover{color:var(--orange)}.copyright{padding-top:20px;border-top:1px solid var(--line);color:#77736b;font-size:12px;display:flex;justify-content:space-between;gap:20px}
        @media(max-width:1100px){.hero-inner{gap:35px}.content-rail{grid-template-columns:repeat(2,1fr)}.scene-grid{grid-template-columns:repeat(2,1fr)}}
        @media(max-width:820px){.container{width:min(100% - 34px,var(--container))}.nav-wrap{height:68px}.menu-toggle{display:block;margin-left:auto}.nav-links{display:none;position:absolute;top:68px;left:0;right:0;padding:15px 17px 22px;background:#171716;border-bottom:1px solid var(--line);flex-direction:column;align-items:stretch}.nav-links.open{display:flex}.nav-links a{padding:13px 15px}.nav-action{margin:5px 0 0}.hero{min-height:auto}.hero-inner,.function-layout,.devices,.demo-layout,.topic-layout,.voice,.news-layout,.faq-wrap{grid-template-columns:1fr}.hero-inner{padding:75px 0 90px}.hero-stage{max-width:650px}.plans{grid-template-columns:1fr}.footer-main{grid-template-columns:1fr 1fr}.section{padding:78px 0}.section-head{display:block}.section-head p{margin-top:14px}.section-head .btn{margin-top:18px}.steps{grid-template-columns:1fr 1fr}.step{border-top:0;border-left:2px solid #4a4740}.step:first-child{border-left-color:var(--orange)}}
        @media(max-width:520px){body{font-size:14px}.container{width:calc(100% - 28px)}.logo{font-size:16px}.hero-copy h1{font-size:40px}.hero-copy p{font-size:15px}.hero-note{gap:15px}.hero-note strong{font-size:16px}.content-rail{grid-template-columns:1fr 1fr;gap:10px}.card-body{padding:11px}.card-body h3{font-size:14px}.card-body p{font-size:12px}.scene-grid{grid-template-columns:1fr}.device-art{min-height:260px;padding:16px}.device.screen{width:190px;height:125px}.device.phone{width:88px;height:170px}.cases{grid-template-columns:1fr}.steps{grid-template-columns:1fr}.step{padding:18px 15px}.footer-main{grid-template-columns:1fr;gap:28px}.copyright{display:block}.copyright span{display:block;margin-top:8px}.final-actions{flex-direction:column;align-items:stretch}.stage-caption strong{font-size:15px}}

/* roulang page: category1 */
:root{
 --bg:#151515;--bg-soft:#1d1d1b;--panel:#242422;--panel-light:#2b2a27;
 --cream:#f4efe5;--muted:#aaa59b;--line:rgba(244,239,229,.12);
 --orange:#f2a51a;--orange-deep:#d87b0d;--lime:#c6c77c;
 --radius:16px;--shadow:0 18px 45px rgba(0,0,0,.28);--container:1240px
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;background:var(--bg);color:var(--cream);font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei","Noto Sans CJK SC",Arial,sans-serif;font-size:15px;line-height:1.75;overflow-x:hidden}
a{color:inherit;text-decoration:none}
img{display:block;max-width:100%;height:auto}
button,input,select{font:inherit}
button{cursor:pointer}
.container{width:min(var(--container),calc(100% - 48px));margin:0 auto}
.site-header{position:sticky;top:0;z-index:20;background:rgba(21,21,21,.95);border-bottom:1px solid var(--line);backdrop-filter:blur(12px)}
.nav-wrap{height:76px;display:flex;align-items:center;gap:30px}
.logo{display:flex;align-items:center;gap:10px;font-size:19px;font-weight:800;white-space:nowrap}
.logo-mark{width:31px;height:31px;border:2px solid var(--orange);border-radius:50%;display:grid;place-items:center;color:var(--orange);font-size:13px}
.logo-mark:after{content:"";display:block;margin-left:3px;border-left:8px solid var(--orange);border-top:5px solid transparent;border-bottom:5px solid transparent}
.nav-links{display:flex;align-items:center;gap:4px;margin-left:auto}
.nav-links a{padding:9px 14px;color:var(--muted);border-radius:7px;transition:.2s}
.nav-links a:hover,.nav-links a.active{color:var(--cream);background:rgba(244,239,229,.07)}
.nav-links a.active{box-shadow:inset 0 -2px var(--orange)}
.nav-action{margin-left:8px}
.menu-toggle{display:none;background:none;color:var(--cream);border:1px solid var(--line);border-radius:8px;width:44px;height:44px}
.btn{min-height:46px;display:inline-flex;align-items:center;justify-content:center;gap:9px;padding:0 20px;border-radius:9px;border:1px solid transparent;font-weight:700;transition:.25s ease}
.btn-primary{background:var(--orange);color:#17130b;box-shadow:0 8px 20px rgba(242,165,26,.18)}
.btn-primary:hover{background:#ffc04b;transform:translateY(-2px)}
.btn-ghost{border-color:rgba(244,239,229,.25);color:var(--cream);background:transparent}
.btn-ghost:hover{border-color:var(--orange);color:var(--orange);transform:translateY(-2px)}
.btn:focus,a:focus,select:focus{outline:3px solid rgba(242,165,26,.45);outline-offset:3px}
.tag{display:inline-flex;align-items:center;padding:4px 9px;border-radius:5px;background:rgba(242,165,26,.14);color:#ffc35b;font-size:12px;line-height:1.4}
.tag-muted{background:rgba(244,239,229,.08);color:var(--muted)}
.section{padding:88px 0;border-top:1px solid var(--line)}
.eyebrow{color:var(--orange);font-size:12px;font-weight:700;letter-spacing:.14em;margin-bottom:12px}
.section-head{display:flex;justify-content:space-between;align-items:end;gap:28px;margin-bottom:34px}
.section-head h2{font-size:clamp(26px,3vw,38px);line-height:1.2;letter-spacing:-.03em;margin:0}
.section-head p{max-width:560px;color:var(--muted);margin:0}
.category-intro{padding:76px 0 64px;background:linear-gradient(90deg,rgba(21,21,21,.98),rgba(21,21,21,.78)),url('/assets/images/32205f5ceaa4657f.jpg') center/cover}
.breadcrumb{display:flex;gap:9px;color:var(--muted);font-size:13px;margin-bottom:28px}
.breadcrumb a:hover{color:var(--orange)}
.category-intro h1{font-size:clamp(34px,5vw,64px);line-height:1.12;letter-spacing:-.05em;margin:0 0 18px;max-width:780px}
.category-intro h1 span{color:var(--orange)}
.category-intro p{max-width:680px;color:#d0cbc1;font-size:17px;margin:0}
.filter-area{background:var(--bg-soft)}
.filter-bar{display:flex;align-items:center;gap:12px;flex-wrap:wrap;padding:18px;background:var(--panel);border:1px solid var(--line);border-radius:14px}
.filter-label{color:var(--muted);font-size:13px;margin-right:4px}
.filter-chip{border:1px solid var(--line);background:transparent;color:var(--muted);padding:9px 14px;border-radius:8px;transition:.2s}
.filter-chip:hover,.filter-chip.active{color:#17130b;background:var(--orange);border-color:var(--orange)}
.filter-select{background:#191918;color:var(--cream);border:1px solid var(--line);border-radius:8px;padding:9px 34px 9px 12px;margin-left:auto}
.video-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.video-card{background:var(--panel);border:1px solid var(--line);border-radius:14px;overflow:hidden;transition:.25s;min-width:0}
.video-card:hover{transform:translateY(-5px);border-color:rgba(242,165,26,.45);box-shadow:var(--shadow)}
.thumb{position:relative;aspect-ratio:16/9;overflow:hidden;background:#35342f}
.thumb img{width:100%;height:100%;object-fit:cover;transition:.35s}
.video-card:hover .thumb img{transform:scale(1.03)}
.thumb:after{content:"";position:absolute;inset:35% 0 0;background:linear-gradient(transparent,rgba(0,0,0,.72))}
.duration{position:absolute;z-index:2;right:10px;bottom:9px;background:rgba(0,0,0,.72);padding:2px 7px;border-radius:4px;font-size:12px}
.thumb .tag{position:absolute;z-index:2;left:10px;top:10px}
.mini-play{position:absolute;z-index:3;left:50%;top:50%;transform:translate(-50%,-50%);width:46px;height:46px;border-radius:50%;background:rgba(242,165,26,.95);color:#17130b;display:grid;place-items:center;font-size:17px;opacity:0;transition:.25s}
.video-card:hover .mini-play,.video-card:focus-within .mini-play{opacity:1}
.card-body{padding:18px}
.card-body h3{margin:0 0 8px;font-size:18px;line-height:1.4}
.card-body p{color:var(--muted);font-size:14px;line-height:1.65;margin:0 0 14px}
.card-meta{display:flex;justify-content:space-between;color:#817d75;font-size:12px}
.more-row{text-align:center;margin-top:34px}
.featured{background:#191918}
.featured-grid{display:grid;grid-template-columns:1.25fr .75fr;gap:22px}
.featured-main,.featured-small{position:relative;overflow:hidden;border-radius:16px;border:1px solid var(--line);min-height:300px;background:#292824}
.featured-main img,.featured-small img{width:100%;height:100%;object-fit:cover;transition:.35s}
.featured-main:hover img,.featured-small:hover img{transform:scale(1.04)}
.featured-main:after,.featured-small:after{content:"";position:absolute;inset:35% 0 0;background:linear-gradient(transparent,rgba(0,0,0,.9))}
.featured-copy{position:absolute;z-index:2;left:25px;right:25px;bottom:22px}
.featured-copy h3{font-size:24px;margin:10px 0 4px}
.featured-copy p{color:#d0cbc1;margin:0;font-size:14px}
.featured-side{display:grid;gap:22px}
.featured-small{min-height:139px}
.featured-small .featured-copy{left:18px;bottom:14px}
.featured-small h3{font-size:17px;margin:4px 0}
.guide-grid{display:grid;grid-template-columns:1fr 1.2fr;gap:50px;align-items:start}
.guide-copy h2{font-size:34px;line-height:1.25;margin:0 0 16px}
.guide-copy p{color:var(--muted)}
.guide-list{display:grid;gap:12px}
.guide-item{display:grid;grid-template-columns:48px 1fr;gap:17px;padding:18px 0;border-bottom:1px solid var(--line)}
.guide-number{width:38px;height:38px;border-radius:10px;background:rgba(242,165,26,.14);color:var(--orange);display:grid;place-items:center;font-weight:800}
.guide-item h3{margin:0 0 3px;font-size:17px}
.guide-item p{color:var(--muted);margin:0;font-size:14px}
.topic-panel{display:grid;grid-template-columns:.9fr 1.1fr;gap:40px;align-items:center}
.topic-panel img{width:100%;height:330px;object-fit:cover;border-radius:16px;border:1px solid var(--line)}
.topic-panel h2{font-size:32px;line-height:1.25;margin:0 0 14px}
.topic-panel p{color:var(--muted)}
.topic-tags{display:flex;gap:8px;flex-wrap:wrap;margin:22px 0}
.faq-grid{display:grid;grid-template-columns:1fr 1fr;gap:14px}
.faq-item{border:1px solid var(--line);border-radius:12px;background:var(--panel);overflow:hidden}
.faq-item summary{padding:18px 20px;cursor:pointer;font-weight:700;list-style:none}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary:after{content:"＋";float:right;color:var(--orange);font-size:20px}
.faq-item[open] summary:after{content:"−"}
.faq-item p{color:var(--muted);padding:0 20px 18px;margin:0;font-size:14px}
.cta-strip{padding:35px 40px;background:linear-gradient(105deg,#3a2a15,#26231d);border:1px solid rgba(242,165,26,.35);border-radius:16px;display:flex;justify-content:space-between;align-items:center;gap:25px}
.cta-strip h2{margin:0 0 5px;font-size:27px}
.cta-strip p{margin:0;color:#cfc7b8}
footer{background:#101010;border-top:1px solid var(--line);padding:58px 0 25px}
.footer-main{display:grid;grid-template-columns:1.5fr 1fr 1fr;gap:40px}
.footer-brand p{color:var(--muted);max-width:350px;margin-top:17px}
.footer-col{display:flex;flex-direction:column;gap:9px}
.footer-col h3{font-size:14px;margin:0 0 8px;color:var(--cream)}
.footer-col a{color:var(--muted);font-size:14px;transition:.2s}
.footer-col a:hover{color:var(--orange)}
.copyright{display:flex;justify-content:space-between;gap:20px;border-top:1px solid var(--line);margin-top:42px;padding-top:20px;color:#77736c;font-size:12px}
@media(max-width:992px){
 .nav-wrap{gap:15px}.nav-links a{padding:8px 9px;font-size:14px}
 .video-grid{grid-template-columns:repeat(2,1fr)}
 .featured-grid,.topic-panel,.guide-grid{grid-template-columns:1fr}
 .topic-panel img{height:280px}
}
@media(max-width:768px){
 .container{width:min(var(--container),calc(100% - 32px))}
 .nav-wrap{height:68px}.menu-toggle{display:block;margin-left:auto}
 .nav-links{display:none;position:absolute;top:68px;left:0;right:0;background:#191918;border-bottom:1px solid var(--line);padding:14px 16px;flex-direction:column;align-items:stretch}
 .nav-links.open{display:flex}.nav-links a{padding:13px 15px}.nav-action{margin:5px 0 0;text-align:center}
 .category-intro{padding:58px 0 50px}.section{padding:68px 0}
 .section-head{display:block}.section-head p{margin-top:13px}
 .filter-select{margin-left:0}.faq-grid{grid-template-columns:1fr}
 .cta-strip{display:block;padding:28px}.cta-strip .btn{margin-top:20px}
 .footer-main{grid-template-columns:1fr 1fr}.footer-brand{grid-column:1/-1}
}
@media(max-width:576px){
 .logo{font-size:16px}.logo-mark{width:28px;height:28px}
 .video-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:12px}
 .card-body{padding:13px}.card-body h3{font-size:15px}.card-body p{font-size:12px;line-height:1.5}
 .card-meta{font-size:11px}.mini-play{opacity:1;width:36px;height:36px;font-size:14px}
 .featured-grid{gap:12px}.featured-main{min-height:260px}.featured-small{min-height:125px}
 .footer-main{grid-template-columns:1fr}.copyright{display:block}.copyright span{display:block;margin-bottom:5px}
 .category-intro h1{font-size:38px}
}