/* roulang page: index */
:root{
      --ink:#071426;
      --deep:#0a1d38;
      --deep-2:#0e2a4d;
      --blue:#54b9ff;
      --cyan:#83e7ff;
      --coral:#ff8b78;
      --pink:#f36b91;
      --text:#eaf5ff;
      --muted:#9eb3c9;
      --line:rgba(157,205,244,.18);
      --glass:rgba(18,48,82,.62);
      --glass-2:rgba(10,30,56,.78);
      --shadow:0 24px 70px rgba(0,0,0,.28);
      --radius:18px;
      --ease:all .25s ease;
    }
    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{
      margin:0;
      color:var(--text);
      background:var(--ink);
      font-family:"PingFang SC","Microsoft YaHei","Noto Sans CJK SC",Arial,sans-serif;
      line-height:1.75;
      font-size:16px;
      overflow-x:hidden;
    }
    body:before{
      content:"";position:fixed;inset:0;pointer-events:none;opacity:.18;
      background-image:linear-gradient(rgba(105,180,235,.06) 1px,transparent 1px),linear-gradient(90deg,rgba(105,180,235,.06) 1px,transparent 1px);
      background-size:58px 58px;mask-image:linear-gradient(to bottom,black,transparent 80%);
    }
    a{color:inherit;text-decoration:none;transition:var(--ease)}
    img{max-width:100%;display:block}
    button,input,textarea,select{font:inherit}
    button:focus,input:focus,textarea:focus,select:focus,a:focus{outline:2px solid var(--cyan);outline-offset:3px}
    .container{width:min(1200px,calc(100% - 48px));margin:0 auto}
    .site-header{
      position:fixed;top:0;left:0;right:0;z-index:20;
      background:rgba(5,18,36,.76);backdrop-filter:blur(18px);
      border-bottom:1px solid transparent;transition:var(--ease)
    }
    .site-header.scrolled{border-color:var(--line);box-shadow:0 10px 30px rgba(0,0,0,.18)}
    .topbar{min-height:76px;display:flex;align-items:center;justify-content:space-between;gap:28px}
    .brand{display:flex;align-items:center;gap:12px;font-weight:800;letter-spacing:.04em;font-size:21px;white-space:nowrap}
    .brand-mark{width:34px;height:34px;border-radius:11px;background:linear-gradient(135deg,var(--blue),var(--coral));box-shadow:0 0 22px rgba(83,190,255,.4);position:relative}
    .brand-mark:after{content:"";position:absolute;width:10px;height:10px;border:2px solid #fff;border-radius:50%;right:6px;top:6px}
    .main-nav{display:flex;align-items:center;gap:28px;margin-left:auto}
    .main-nav a{color:#c1d5e7;font-size:14px;position:relative}
    .main-nav a:after{content:"";position:absolute;left:0;right:100%;bottom:-9px;height:2px;background:var(--cyan);transition:var(--ease)}
    .main-nav a:hover,.main-nav a.active{color:#fff}
    .main-nav a:hover:after,.main-nav a.active:after{right:0}
    .nav-cta,.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;min-height:46px;padding:0 21px;border-radius:999px;font-weight:700;font-size:14px;border:1px solid transparent;cursor:pointer}
    .nav-cta,.btn-primary{color:#06203d;background:linear-gradient(110deg,var(--cyan),var(--blue));box-shadow:0 0 26px rgba(83,190,255,.3)}
    .nav-cta:hover,.btn-primary:hover{transform:translateY(-3px);box-shadow:0 10px 32px rgba(83,190,255,.4);color:#03182e}
    .menu-toggle{display:none;background:none;border:1px solid var(--line);color:#fff;border-radius:10px;padding:8px 11px}
    .hero{
      min-height:760px;padding:155px 0 90px;position:relative;display:flex;align-items:center;
      background:linear-gradient(90deg,rgba(5,18,36,.98) 18%,rgba(5,18,36,.76) 54%,rgba(5,18,36,.48)),url('/assets/images/c202ab09cbc0efb2.jpg') center/cover;
    }
    .hero:after{content:"";position:absolute;inset:auto 0 0;height:180px;background:linear-gradient(transparent,var(--ink))}
    .hero-grid{position:relative;z-index:1;display:grid;grid-template-columns:1.08fr .92fr;gap:70px;align-items:center}
    .eyebrow,.tag{display:inline-flex;align-items:center;gap:8px;padding:6px 11px;border:1px solid rgba(131,231,255,.28);border-radius:999px;color:var(--cyan);font-size:12px;letter-spacing:.08em;background:rgba(47,126,177,.12)}
    .eyebrow:before{content:"";width:7px;height:7px;border-radius:50%;background:var(--coral);box-shadow:0 0 12px var(--coral)}
    h1,h2,h3,p{margin-top:0}
    h1{font-size:clamp(40px,5vw,68px);line-height:1.15;letter-spacing:-.045em;margin:22px 0 24px;max-width:720px}
    h2{font-size:clamp(29px,3.5vw,42px);line-height:1.25;letter-spacing:-.03em;margin-bottom:16px}
    h3{font-size:20px;line-height:1.4;margin-bottom:9px}
    .hero-copy{color:#c1d4e6;max-width:650px;font-size:17px}
    .hero-actions{display:flex;gap:13px;flex-wrap:wrap;margin-top:30px}
    .btn-ghost{border-color:rgba(151,208,245,.35);color:#dff4ff;background:rgba(15,50,82,.32)}
    .btn-ghost:hover{border-color:var(--cyan);background:rgba(50,127,176,.25);transform:translateY(-3px)}
    .hero-panel{border:1px solid rgba(145,215,255,.25);background:rgba(12,39,70,.7);backdrop-filter:blur(16px);border-radius:24px;padding:27px;box-shadow:var(--shadow);transform:rotate(1.5deg)}
    .panel-top{display:flex;justify-content:space-between;align-items:center;border-bottom:1px solid var(--line);padding-bottom:18px;margin-bottom:22px}
    .panel-title{font-weight:700}.status{color:#7ff2c4;font-size:12px}
    .reward{display:grid;grid-template-columns:1fr auto;gap:16px;align-items:end;padding:20px;border-radius:15px;background:linear-gradient(135deg,rgba(69,151,208,.28),rgba(242,107,145,.16));border:1px solid rgba(151,220,255,.15)}
    .reward strong{font-size:25px;display:block}.reward small{color:var(--muted)}
    .progress-label{display:flex;justify-content:space-between;color:#c8d9e7;font-size:13px;margin:22px 0 9px}
    .progress{height:8px;background:#163653;border-radius:20px;overflow:hidden}.progress span{display:block;width:68%;height:100%;background:linear-gradient(90deg,var(--blue),var(--coral));border-radius:inherit}
    section{padding:105px 0;position:relative}
    .section-dark{background:linear-gradient(180deg,rgba(12,37,68,.35),rgba(7,20,38,.15))}
    .section-head{max-width:700px;margin-bottom:42px}.section-head p{color:var(--muted);font-size:16px}
    .kicker{color:var(--coral);font-size:13px;font-weight:700;letter-spacing:.1em;margin-bottom:12px}
    .problem-layout{display:grid;grid-template-columns:.8fr 1.2fr;gap:45px;align-items:start}
    .problem-note{padding:28px;border-left:3px solid var(--coral);background:rgba(255,139,120,.06);color:#d8e5ef;border-radius:0 16px 16px 0}
    .issue-list{display:grid;grid-template-columns:repeat(2,1fr);gap:13px}
    .issue{padding:20px;border:1px solid var(--line);border-radius:14px;background:rgba(20,52,84,.4);transition:var(--ease)}
    .issue:hover{border-color:rgba(131,231,255,.55);transform:translateY(-3px)}
    .issue b{display:block;color:#fff;margin-bottom:5px}.issue span{color:var(--muted);font-size:14px}
    .solution-grid{display:grid;grid-template-columns:1.25fr .75fr;gap:20px}
    .feature-card,.glass-card{border:1px solid var(--line);background:var(--glass);backdrop-filter:blur(13px);border-radius:var(--radius);padding:30px;box-shadow:0 15px 45px rgba(0,0,0,.12)}
    .feature-card{min-height:300px;background:linear-gradient(140deg,rgba(43,113,168,.45),rgba(14,40,69,.7))}
    .feature-card p,.glass-card p,.step p,.metric p,.scene p,.article p{color:var(--muted);font-size:14px}
    .feature-list{display:grid;grid-template-columns:repeat(2,1fr);gap:16px;margin-top:28px}
    .mini-feature{padding:15px 0;border-top:1px solid var(--line)}.mini-feature strong{display:block;font-size:16px}.mini-feature span{font-size:13px;color:var(--muted)}
    .side-stack{display:grid;gap:20px}.accent-card{background:linear-gradient(145deg,rgba(255,139,120,.85),rgba(185,69,117,.72));color:#fff}
    .accent-card p{color:#fff;opacity:.86}
    .steps{display:grid;grid-template-columns:repeat(5,1fr);gap:12px}
    .step{position:relative;padding:24px 18px;border-top:2px solid rgba(83,190,255,.4);background:rgba(13,41,72,.52);min-height:210px}
    .step-number{color:var(--cyan);font-size:13px;font-weight:800;letter-spacing:.1em}.step h3{margin-top:22px}
    .matrix{display:grid;grid-template-columns:1.3fr .7fr .9fr;grid-template-rows:180px 180px;gap:16px}
    .matrix .glass-card{padding:23px;overflow:hidden}.matrix .large{grid-row:span 2;background:linear-gradient(145deg,rgba(45,104,155,.5),rgba(15,38,66,.7))}
    .matrix .wide{grid-column:span 2;background:linear-gradient(130deg,rgba(175,77,111,.42),rgba(19,49,81,.7))}
    .tag{font-size:11px;padding:4px 9px;margin-bottom:18px;color:#d5f7ff}
    .data-band{display:grid;grid-template-columns:repeat(4,1fr);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
    .data-item{padding:27px 22px;border-right:1px solid var(--line)}.data-item:last-child{border-right:0}
    .data-item strong{font-size:31px;line-height:1.2;color:#fff;display:block;margin-bottom:8px}.data-item span{font-size:13px;color:var(--muted)}
    .quote-layout{display:grid;grid-template-columns:1.3fr .7fr;gap:20px}.quote-main{padding:42px;background:linear-gradient(135deg,rgba(44,111,162,.5),rgba(15,39,68,.78));border-radius:22px;border:1px solid var(--line)}
    .quote-mark{font-size:64px;line-height:.7;color:var(--coral)}blockquote{font-size:23px;line-height:1.6;margin:20px 0 25px;color:#f1f8ff}.quote-meta{color:var(--muted);font-size:13px}
    .quote-side{display:grid;gap:20px}.short-quote{padding:24px;border:1px solid var(--line);border-radius:16px;background:var(--glass-2);color:#d7e5f1}
    .scenes{display:grid;grid-template-columns:repeat(4,1fr);gap:14px}.scene{padding:24px 20px;border-bottom:2px solid var(--blue);background:rgba(14,43,74,.54);border-radius:14px}
    .scene:nth-child(2){border-color:var(--coral)}.scene:nth-child(3){border-color:var(--pink)}.scene:nth-child(4){border-color:var(--cyan)}
    .expression{display:grid;grid-template-columns:.8fr 1.2fr;gap:45px;align-items:center}
    .poster{min-height:340px;padding:40px;border-radius:22px;background:linear-gradient(145deg,rgba(238,102,132,.8),rgba(38,88,132,.85)),url('/assets/images/19851eccd730cff2.jpg') center/cover;display:flex;align-items:flex-end}
    .poster strong{font-size:39px;line-height:1.2;max-width:330px}
    .expression-list{display:grid;gap:16px}.expression-list div{padding:20px 0;border-bottom:1px solid var(--line)}.expression-list b{display:block;margin-bottom:5px}.expression-list span{color:var(--muted);font-size:14px}
    .article-grid{display:grid;grid-template-columns:1.2fr .8fr .8fr;gap:18px}.article{padding:25px;border:1px solid var(--line);background:var(--glass);border-radius:18px;min-height:220px;transition:var(--ease)}.article:first-child{background:linear-gradient(145deg,rgba(39,101,151,.55),rgba(14,39,67,.75))}.article:hover{transform:translateY(-5px);border-color:var(--cyan)}.article time{color:var(--coral);font-size:12px}.article h3{margin-top:20px}
    .dashboard{display:grid;grid-template-columns:1fr 1fr;gap:22px;padding:30px;border:1px solid var(--line);border-radius:22px;background:rgba(10,31,57,.76)}.metric{padding:20px;border-bottom:1px solid var(--line)}.metric strong{display:block;font-size:26px;color:#fff}.trend{color:#7ff2c4;font-size:12px}
    .workflow{display:grid;grid-template-columns:repeat(5,1fr);gap:0}.workflow-item{padding:20px;border-left:1px solid var(--line);min-height:150px}.workflow-item:first-child{border-left:3px solid var(--coral)}.workflow-item b{color:var(--cyan);font-size:13px}.workflow-item h3{font-size:17px;margin-top:17px}
    .faq-list{border-top:1px solid var(--line)}details{border-bottom:1px solid var(--line);padding:20px 0}summary{cursor:pointer;font-weight:700;list-style:none;display:flex;justify-content:space-between;gap:15px}summary:after{content:"＋";color:var(--cyan);font-size:21px}details[open] summary:after{content:"－"}details p{color:var(--muted);max-width:850px;margin:15px 0 0;font-size:14px}
    .contact-section{background:linear-gradient(135deg,#102e50,#162747);border-top:1px solid var(--line)}.contact-grid{display:grid;grid-template-columns:.8fr 1.2fr;gap:55px}.contact-copy p{color:var(--muted)}.contact-points{display:grid;gap:10px;margin-top:25px}.contact-points span{color:#d7e8f5;font-size:14px}.contact-points span:before{content:"✓";color:var(--cyan);margin-right:10px}
    .contact-form{padding:30px;border-radius:20px;background:rgba(5,20,38,.56);border:1px solid var(--line)}.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:15px}label{color:#cfe0ed;font-size:13px;display:block}input,textarea,select{width:100%;margin-top:7px;background:rgba(23,56,88,.55);border:1px solid rgba(161,210,243,.2);border-radius:10px;color:#fff;padding:12px 13px;min-height:46px}textarea{min-height:110px;resize:vertical}.form-full{grid-column:1/-1}.form-note{font-size:12px;color:var(--muted);margin:13px 0}.success{display:none;color:#83f0c5;font-size:14px;margin-top:12px}
    footer{padding:45px 0 28px;background:#061326;border-top:1px solid var(--line)}.footer-grid{display:grid;grid-template-columns:1.4fr .7fr .7fr;gap:35px}.footer-brand p{color:var(--muted);max-width:360px;font-size:14px}.footer-col h3{font-size:14px;color:#fff}.footer-col a{display:block;color:var(--muted);font-size:13px;margin:8px 0}.footer-col a:hover{color:var(--cyan)}.copyright{border-top:1px solid var(--line);margin-top:35px;padding-top:20px;color:#6f879d;font-size:12px;display:flex;justify-content:space-between;gap:20px}
    @media(max-width:1024px){.main-nav{gap:16px}.hero-grid{gap:35px}.steps{grid-template-columns:repeat(3,1fr)}.workflow{grid-template-columns:repeat(3,1fr);gap:15px}.workflow-item{border:1px solid var(--line);border-radius:12px}.scenes{grid-template-columns:repeat(2,1fr)}}
    @media(max-width:768px){.container{width:min(100% - 32px,600px)}.menu-toggle{display:block}.main-nav{display:none;position:absolute;top:76px;left:0;right:0;padding:16px;background:rgba(5,18,36,.98);border-bottom:1px solid var(--line);flex-direction:column;align-items:stretch;gap:0}.main-nav.open{display:flex}.main-nav a{padding:13px 5px}.main-nav a:after{display:none}.nav-cta{display:none}.hero{min-height:auto;padding:130px 0 80px}.hero-grid,.problem-layout,.solution-grid,.quote-layout,.expression,.contact-grid{grid-template-columns:1fr}.hero-panel{transform:none}.matrix{grid-template-columns:1fr 1fr;grid-template-rows:auto}.matrix .large{grid-row:span 1}.matrix .wide{grid-column:span 2}.steps{grid-template-columns:1fr 1fr}.data-band{grid-template-columns:1fr 1fr}.data-item:nth-child(2){border-right:0}.data-item:nth-child(-n+2){border-bottom:1px solid var(--line)}.article-grid{grid-template-columns:1fr 1fr}.article:first-child{grid-column:span 2}.footer-grid{grid-template-columns:1fr 1fr}}
    @media(max-width:520px){h1{font-size:39px}.hero-copy{font-size:15px}.feature-list,.issue-list,.steps,.scenes,.article-grid,.form-grid,.dashboard{grid-template-columns:1fr}.matrix{display:block}.matrix .glass-card{margin-bottom:14px}.article:first-child{grid-column:auto}.workflow{grid-template-columns:1fr}.data-band{grid-template-columns:1fr 1fr}.data-item{padding:20px 13px}.data-item strong{font-size:24px}.footer-grid{grid-template-columns:1fr}.copyright{display:block}.copyright span{display:block;margin-top:7px}.contact-form{padding:20px}}

/* roulang page: category1 */
:root{
 --ink:#071426;--deep:#0a1d38;--deep-2:#0e2a4d;--blue:#54b9ff;--cyan:#83e7ff;
 --coral:#ff8b78;--pink:#f36b91;--text:#eaf5ff;--muted:#9eb3c9;
 --line:rgba(157,205,244,.18);--glass:rgba(18,48,82,.62);--glass-2:rgba(10,30,56,.8);
 --shadow:0 24px 70px rgba(0,0,0,.28);--radius:18px;--ease:all .25s ease
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;color:var(--text);background:var(--ink);font-family:"PingFang SC","Microsoft YaHei","Noto Sans CJK SC",Arial,sans-serif;line-height:1.75;font-size:16px;overflow-x:hidden}
body:before{content:"";position:fixed;inset:0;pointer-events:none;opacity:.17;background-image:linear-gradient(rgba(105,180,235,.06) 1px,transparent 1px),linear-gradient(90deg,rgba(105,180,235,.06) 1px,transparent 1px);background-size:58px 58px;mask-image:linear-gradient(to bottom,black,transparent 80%)}
a{color:inherit;text-decoration:none;transition:var(--ease)}
img{max-width:100%;display:block}
button,input,textarea,select{font:inherit}
button:focus,input:focus,textarea:focus,select:focus,a:focus{outline:2px solid var(--cyan);outline-offset:3px}
.container{width:min(1200px,calc(100% - 48px));margin:0 auto}
.site-header{position:fixed;top:0;left:0;right:0;z-index:20;background:rgba(5,18,36,.78);backdrop-filter:blur(18px);border-bottom:1px solid transparent;transition:var(--ease)}
.site-header.scrolled{border-color:var(--line);box-shadow:0 10px 30px rgba(0,0,0,.18)}
.topbar{min-height:76px;display:flex;align-items:center;justify-content:space-between;gap:28px}
.brand{display:flex;align-items:center;gap:12px;font-weight:800;letter-spacing:.04em;font-size:21px;white-space:nowrap}
.brand-mark{width:34px;height:34px;border-radius:11px;background:linear-gradient(135deg,var(--blue),var(--coral));box-shadow:0 0 22px rgba(83,190,255,.4);position:relative}
.brand-mark:after{content:"";position:absolute;width:10px;height:10px;border:2px solid #fff;border-radius:50%;right:6px;top:6px}
.main-nav{display:flex;align-items:center;gap:28px;margin-left:auto}
.main-nav a{color:#c1d5e7;font-size:14px;position:relative}
.main-nav a:after{content:"";position:absolute;left:0;right:100%;bottom:-9px;height:2px;background:var(--cyan);transition:var(--ease)}
.main-nav a:hover,.main-nav a.active{color:#fff}
.main-nav a:hover:after,.main-nav a.active:after{right:0}
.nav-cta,.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;min-height:46px;padding:0 21px;border-radius:999px;font-weight:700;font-size:14px;border:1px solid transparent;cursor:pointer}
.nav-cta,.btn-primary{color:#06203d;background:linear-gradient(110deg,var(--cyan),var(--blue));box-shadow:0 0 26px rgba(83,190,255,.3)}
.nav-cta:hover,.btn-primary:hover{transform:translateY(-3px);box-shadow:0 10px 32px rgba(83,190,255,.4);color:#03182e}
.menu-toggle{display:none;background:none;border:1px solid var(--line);color:#fff;border-radius:10px;padding:8px 11px}
main{padding-top:76px}
.category-hero{padding:78px 0 72px;background:linear-gradient(105deg,rgba(6,22,43,.97),rgba(8,35,65,.76)),url('/assets/images/19851eccd730cff2.jpg') center/cover;position:relative}
.category-hero:after{content:"";position:absolute;left:0;right:0;bottom:0;height:100px;background:linear-gradient(transparent,var(--ink))}
.category-hero .container{position:relative;z-index:1}
.eyebrow,.tag{display:inline-flex;align-items:center;gap:8px;padding:6px 11px;border:1px solid rgba(131,231,255,.28);border-radius:999px;color:var(--cyan);font-size:12px;letter-spacing:.08em;background:rgba(47,126,177,.12)}
.eyebrow:before{content:"";width:7px;height:7px;border-radius:50%;background:var(--coral);box-shadow:0 0 12px var(--coral)}
h1,h2,h3{line-height:1.25;margin:0 0 18px;color:#fff}
h1{font-size:clamp(38px,5vw,64px);letter-spacing:-.04em;max-width:760px}
h2{font-size:clamp(29px,3.5vw,42px)}
h3{font-size:20px}
.lead{font-size:18px;color:#c2d5e7;max-width:720px}
.hero-meta{display:flex;flex-wrap:wrap;gap:10px;margin-top:28px}
.hero-meta span{padding:8px 14px;border:1px solid var(--line);border-radius:10px;background:rgba(11,37,65,.58);color:#d9edfb;font-size:13px}
section{padding:94px 0;position:relative}
.section-dark{background:linear-gradient(180deg,rgba(12,37,68,.36),rgba(7,20,38,.14))}
.section-head{max-width:720px;margin-bottom:40px}
.section-head p{color:var(--muted);font-size:16px}
.intro-grid{display:grid;grid-template-columns:1.15fr .85fr;gap:28px;align-items:stretch}
.glass-card,.feature-card,.faq-item{border:1px solid var(--line);background:var(--glass);backdrop-filter:blur(13px);border-radius:var(--radius);box-shadow:0 15px 45px rgba(0,0,0,.13)}
.glass-card{padding:30px}
.glass-card p,.feature-card p,.list-copy p,.metric p,.faq-answer{color:var(--muted);font-size:14px}
.index-list{display:grid;gap:13px;margin:0;padding:0;list-style:none}
.index-list li{display:flex;justify-content:space-between;gap:20px;padding:16px 0;border-bottom:1px solid var(--line);color:#d9ecfa}
.index-list li span{color:var(--cyan);font-size:13px}
.filter-row{display:flex;gap:10px;flex-wrap:wrap;margin:24px 0 32px}
.filter-row button{border:1px solid var(--line);background:rgba(15,42,70,.65);color:#bdd4e7;border-radius:999px;padding:9px 16px;cursor:pointer;transition:var(--ease)}
.filter-row button:hover,.filter-row button.active{background:rgba(83,185,255,.18);border-color:var(--cyan);color:#fff}
.editorial-list{display:grid;grid-template-columns:1.25fr .75fr;gap:18px}
.content-feature{min-height:380px;padding:32px;display:flex;flex-direction:column;justify-content:flex-end;background:linear-gradient(0deg,rgba(4,17,34,.96),rgba(8,37,66,.32)),url('/assets/images/79402c1e8d7aebe1.jpg') center/cover;border:1px solid var(--line);border-radius:20px;position:relative;overflow:hidden}
.content-feature p{max-width:610px;color:#c5d9e8}
.list-stack{display:grid;gap:18px}
.list-item{display:grid;grid-template-columns:112px 1fr;gap:18px;padding:18px;border:1px solid var(--line);background:rgba(15,43,72,.56);border-radius:16px;transition:var(--ease)}
.list-item:hover{transform:translateY(-4px);border-color:rgba(131,231,255,.55);box-shadow:0 14px 34px rgba(0,0,0,.18)}
.list-thumb{min-height:100px;border-radius:11px;background:linear-gradient(145deg,rgba(84,185,255,.55),rgba(243,107,145,.54));display:flex;align-items:flex-end;padding:10px;color:#fff;font-size:11px}
.list-copy h3{font-size:17px;margin-bottom:7px}
.list-copy p{margin:0;line-height:1.65}
.tag{font-size:11px;padding:4px 9px;margin-bottom:12px;color:#d5f7ff}
.more-row{margin-top:28px;text-align:right}
.btn-ghost{border:1px solid rgba(151,208,245,.35);color:#dff4ff;background:rgba(15,50,82,.32)}
.btn-ghost:hover{border-color:var(--cyan);background:rgba(50,127,176,.25);transform:translateY(-3px)}
.workflow{display:grid;grid-template-columns:repeat(5,1fr);gap:0;border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.step{padding:28px 20px;border-right:1px solid var(--line);position:relative}
.step:last-child{border-right:0}
.step-number{display:block;color:var(--coral);font-size:13px;font-weight:800;letter-spacing:.1em;margin-bottom:25px}
.step h3{font-size:18px}
.step p{margin:0}
.scene-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:15px}
.scene{padding:24px;min-height:190px;border:1px solid var(--line);border-radius:16px;background:linear-gradient(145deg,rgba(30,75,113,.58),rgba(11,31,55,.74));transition:var(--ease)}
.scene:nth-child(2){transform:translateY(22px)}
.scene:nth-child(4){transform:translateY(12px)}
.scene:hover{border-color:var(--cyan);transform:translateY(-4px)}
.scene:nth-child(2):hover,.scene:nth-child(4):hover{transform:translateY(17px)}
.scene p{margin:0}
.data-band{display:grid;grid-template-columns:repeat(4,1fr);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.data-item{padding:27px 22px;border-right:1px solid var(--line)}
.data-item:last-child{border-right:0}
.data-item strong{font-size:28px;line-height:1.2;color:#fff;display:block;margin-bottom:8px}
.data-item span{font-size:13px;color:var(--muted)}
.note-panel{display:grid;grid-template-columns:.8fr 1.2fr;gap:28px;align-items:center}
.note-panel .feature-card{padding:36px;background:linear-gradient(145deg,rgba(255,139,120,.8),rgba(185,69,117,.68))}
.feature-card p{margin:0}
.metric-list{display:grid;grid-template-columns:repeat(2,1fr);gap:14px}
.metric{padding:22px;border-left:3px solid var(--blue);background:rgba(14,39,67,.54)}
.metric strong{display:block;color:#fff;font-size:18px;margin-bottom:6px}
.metric p{margin:0}
.faq-list{display:grid;gap:12px;max-width:850px}
.faq-item{overflow:hidden}
.faq-question{width:100%;padding:20px 24px;border:0;background:transparent;color:#fff;text-align:left;font-weight:700;display:flex;justify-content:space-between;cursor:pointer}
.faq-question span{color:var(--cyan);font-size:20px}
.faq-answer{display:none;padding:0 24px 20px;line-height:1.8}
.faq-item.open{border-color:rgba(131,231,255,.56);box-shadow:0 0 25px rgba(83,185,255,.1)}
.faq-item.open .faq-answer{display:block}
.cta-section{padding:80px 0;background:linear-gradient(115deg,rgba(25,83,123,.76),rgba(121,55,88,.72))}
.cta-box{display:flex;align-items:center;justify-content:space-between;gap:30px}
.cta-box p{color:#dbeefa;max-width:620px;margin:0}
footer{padding:65px 0 25px;background:#061225;border-top:1px solid var(--line)}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr;gap:50px}
.footer-brand p{color:var(--muted);max-width:390px;font-size:14px}
.footer-col{display:grid;align-content:start;gap:10px}
.footer-col h3{font-size:15px;color:#fff;margin-bottom:9px}
.footer-col a{font-size:14px;color:var(--muted)}
.footer-col a:hover{color:var(--cyan)}
.copyright{display:flex;justify-content:space-between;gap:20px;border-top:1px solid var(--line);margin-top:45px;padding-top:20px;color:#718ba5;font-size:13px}
@media(max-width:1024px){
 .main-nav{gap:16px}.nav-cta{padding:0 14px}
 .workflow{grid-template-columns:repeat(3,1fr)}
 .step:nth-child(3){border-right:0}.scene-grid{grid-template-columns:repeat(2,1fr)}
}
@media(max-width:768px){
 .container{width:min(100% - 32px,600px)}
 .topbar{min-height:68px}.menu-toggle{display:block}
 .main-nav{display:none;position:absolute;top:68px;left:0;right:0;margin:0;padding:18px 20px 24px;background:rgba(5,18,36,.98);border-bottom:1px solid var(--line);flex-direction:column;align-items:stretch;gap:0}
 .main-nav.open{display:flex}.main-nav a{padding:13px 3px}
 .nav-cta{display:none}
 main{padding-top:68px}.category-hero{padding:68px 0 58px}section{padding:68px 0}
 .intro-grid,.editorial-list,.note-panel{grid-template-columns:1fr}
 .workflow{grid-template-columns:1fr 1fr}.step:nth-child(2){border-right:0}.step:nth-child(3){border-right:1px solid var(--line)}
 .data-band{grid-template-columns:1fr 1fr}.data-item:nth-child(2){border-right:0}.data-item:nth-child(-n+2){border-bottom:1px solid var(--line)}
 .cta-box{display:block}.cta-box .btn{margin-top:24px}
 .footer-grid{grid-template-columns:1fr 1fr;gap:30px}.footer-brand{grid-column:1/-1}
}
@media(max-width:520px){
 h1{font-size:38px}.lead{font-size:16px}.workflow,.scene-grid,.metric-list{grid-template-columns:1fr}
 .step,.step:nth-child(3){border-right:0;border-bottom:1px solid var(--line)}.step:last-child{border-bottom:0}
 .scene:nth-child(2),.scene:nth-child(4){transform:none}.scene:hover,.scene:nth-child(2):hover,.scene:nth-child(4):hover{transform:translateY(-4px)}
 .list-item{grid-template-columns:82px 1fr;padding:13px;gap:12px}.list-thumb{min-height:85px}
 .data-item{padding:22px 15px}.data-item strong{font-size:23px}
 .footer-grid{grid-template-columns:1fr}.copyright{display:block}.copyright span{display:block;margin-top:5px}
}

/* roulang page: category2 */
:root{
      --ink:#071426;--deep:#0a1d38;--deep-2:#0e2a4d;--blue:#54b9ff;--cyan:#83e7ff;
      --coral:#ff8b78;--pink:#f36b91;--text:#eaf5ff;--muted:#9eb3c9;
      --line:rgba(157,205,244,.18);--glass:rgba(18,48,82,.62);--glass-2:rgba(10,30,56,.78);
      --shadow:0 24px 70px rgba(0,0,0,.28);--radius:18px;--ease:all .25s ease;
    }
    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{margin:0;color:var(--text);background:var(--ink);font-family:"PingFang SC","Microsoft YaHei","Noto Sans CJK SC",Arial,sans-serif;line-height:1.75;font-size:16px;overflow-x:hidden}
    body:before{content:"";position:fixed;inset:0;pointer-events:none;opacity:.16;background-image:linear-gradient(rgba(105,180,235,.06) 1px,transparent 1px),linear-gradient(90deg,rgba(105,180,235,.06) 1px,transparent 1px);background-size:58px 58px;mask-image:linear-gradient(to bottom,black,transparent 80%)}
    a{color:inherit;text-decoration:none;transition:var(--ease)}
    img{max-width:100%;display:block}
    button,input,textarea,select{font:inherit}
    button:focus,input:focus,textarea:focus,select:focus,a:focus{outline:2px solid var(--cyan);outline-offset:3px}
    .container{width:min(1200px,calc(100% - 48px));margin:0 auto}
    .site-header{position:fixed;top:0;left:0;right:0;z-index:20;background:rgba(5,18,36,.78);backdrop-filter:blur(18px);border-bottom:1px solid transparent;transition:var(--ease)}
    .site-header.scrolled{border-color:var(--line);box-shadow:0 10px 30px rgba(0,0,0,.2)}
    .topbar{min-height:76px;display:flex;align-items:center;justify-content:space-between;gap:28px}
    .brand{display:flex;align-items:center;gap:12px;font-weight:800;letter-spacing:.04em;font-size:21px;white-space:nowrap}
    .brand-mark{width:34px;height:34px;border-radius:11px;background:linear-gradient(135deg,var(--blue),var(--coral));box-shadow:0 0 22px rgba(83,190,255,.4);position:relative}
    .brand-mark:after{content:"";position:absolute;width:10px;height:10px;border:2px solid #fff;border-radius:50%;right:6px;top:6px}
    .main-nav{display:flex;align-items:center;gap:28px;margin-left:auto}
    .main-nav a{color:#c1d5e7;font-size:14px;position:relative}
    .main-nav a:after{content:"";position:absolute;left:0;right:100%;bottom:-9px;height:2px;background:var(--cyan);transition:var(--ease)}
    .main-nav a:hover,.main-nav a.active{color:#fff}
    .main-nav a:hover:after,.main-nav a.active:after{right:0}
    .nav-cta,.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;min-height:46px;padding:0 21px;border-radius:999px;font-weight:700;font-size:14px;border:1px solid transparent;cursor:pointer}
    .nav-cta,.btn-primary{color:#06203d;background:linear-gradient(110deg,var(--cyan),var(--blue));box-shadow:0 0 26px rgba(83,190,255,.3)}
    .nav-cta:hover,.btn-primary:hover{transform:translateY(-3px);box-shadow:0 10px 32px rgba(83,190,255,.4);color:#03182e}
    .menu-toggle{display:none;background:none;border:1px solid var(--line);color:#fff;border-radius:10px;padding:8px 11px}
    .page-hero{padding:154px 0 86px;position:relative;background:linear-gradient(90deg,rgba(5,18,36,.97),rgba(5,18,36,.73)),url('/assets/images/19851eccd730cff2.jpg') center/cover}
    .page-hero:after{content:"";position:absolute;left:0;right:0;bottom:0;height:100px;background:linear-gradient(transparent,var(--ink))}
    .hero-layout{position:relative;z-index:1;display:grid;grid-template-columns:1.08fr .92fr;gap:72px;align-items:center}
    .eyebrow,.tag{display:inline-flex;align-items:center;gap:8px;padding:6px 11px;border:1px solid rgba(131,231,255,.28);border-radius:999px;color:var(--cyan);font-size:12px;letter-spacing:.08em;background:rgba(47,126,177,.12)}
    .eyebrow:before{content:"";width:7px;height:7px;border-radius:50%;background:var(--coral);box-shadow:0 0 12px var(--coral)}
    h1,h2,h3{line-height:1.25;margin:0 0 16px;color:#fff}
    h1{font-size:clamp(38px,5vw,62px);letter-spacing:-.04em}
    h2{font-size:clamp(28px,3.2vw,40px)}
    h3{font-size:20px}
    .hero-copy{color:#c1d4e6;font-size:17px;max-width:650px}
    .hero-actions{display:flex;gap:13px;flex-wrap:wrap;margin-top:28px}
    .btn-ghost{border-color:rgba(151,208,245,.35);color:#dff4ff;background:rgba(15,50,82,.32)}
    .btn-ghost:hover{border-color:var(--cyan);background:rgba(50,127,176,.25);transform:translateY(-3px)}
    .social-orbit{min-height:340px;display:grid;place-items:center;position:relative}
    .orbit-ring{width:280px;height:280px;border:1px solid rgba(131,231,255,.35);border-radius:50%;position:relative;box-shadow:0 0 60px rgba(84,185,255,.14)}
    .orbit-ring:before,.orbit-ring:after{content:"";position:absolute;border-radius:50%;border:1px solid rgba(255,139,120,.4)}
    .orbit-ring:before{inset:30px}.orbit-ring:after{inset:65px;border-color:rgba(131,231,255,.25)}
    .orbit-core{position:absolute;inset:96px;border-radius:50%;display:grid;place-items:center;text-align:center;background:linear-gradient(145deg,#196397,#0b294a);border:1px solid rgba(169,232,255,.45);box-shadow:0 0 35px rgba(84,185,255,.35);font-weight:800}
    .orbit-label{position:absolute;padding:8px 13px;border-radius:10px;background:rgba(12,39,70,.86);border:1px solid var(--line);font-size:12px;color:#d9f5ff}
    .label-a{top:18px;right:-10px}.label-b{bottom:30px;left:-22px}.label-c{top:125px;left:-58px}
    section{padding:96px 0;position:relative}
    .section-dark{background:linear-gradient(180deg,rgba(12,37,68,.35),rgba(7,20,38,.15))}
    .section-head{max-width:720px;margin-bottom:40px}
    .section-head p,.muted{color:var(--muted)}
    .section-kicker{color:var(--coral);font-size:13px;letter-spacing:.12em;text-transform:uppercase;margin-bottom:10px}
    .channel-strip{display:grid;grid-template-columns:repeat(4,1fr);border:1px solid var(--line);border-radius:18px;overflow:hidden;background:rgba(12,38,68,.56)}
    .channel-item{padding:26px 24px;border-right:1px solid var(--line);transition:var(--ease)}
    .channel-item:last-child{border-right:0}.channel-item:hover{background:rgba(73,150,205,.14)}
    .channel-item strong{display:block;font-size:19px;color:#fff;margin-bottom:7px}.channel-item span{font-size:13px;color:var(--muted)}
    .feed-layout{display:grid;grid-template-columns:.72fr 1.28fr;gap:24px;align-items:start}
    .feed-intro{padding:30px;border:1px solid var(--line);border-radius:20px;background:linear-gradient(145deg,rgba(255,139,120,.82),rgba(171,67,118,.76));min-height:320px}
    .feed-intro p{color:#fff;opacity:.88}
    .feed-list{display:grid;gap:13px}
    .feed-card{display:grid;grid-template-columns:112px 1fr auto;gap:20px;align-items:center;padding:20px;border:1px solid var(--line);border-radius:16px;background:var(--glass);transition:var(--ease)}
    .feed-card:hover{transform:translateX(5px);border-color:rgba(131,231,255,.55);box-shadow:0 12px 35px rgba(0,0,0,.18)}
    .feed-thumb{height:78px;border-radius:11px;background:linear-gradient(135deg,rgba(84,185,255,.8),rgba(20,51,89,.8));position:relative;overflow:hidden}
    .feed-thumb:after{content:"";position:absolute;inset:18px 13px;border:1px solid rgba(255,255,255,.6);border-radius:5px;transform:rotate(-7deg)}
    .feed-card h3{font-size:18px;margin-bottom:5px}.feed-card p{margin:0;color:var(--muted);font-size:14px}.feed-index{color:var(--cyan);font-size:13px}
    .rhythm{display:grid;grid-template-columns:1.2fr .8fr;gap:25px}
    .timeline{padding:31px;border:1px solid var(--line);border-radius:20px;background:var(--glass-2)}
    .timeline-item{display:grid;grid-template-columns:78px 1fr;gap:20px;padding:20px 0;border-bottom:1px solid var(--line)}
    .timeline-item:last-child{border-bottom:0}.timeline-day{color:var(--cyan);font-weight:700}.timeline-item p{margin:0;color:var(--muted);font-size:14px}
    .pulse-card{padding:34px;border-radius:22px;background:linear-gradient(145deg,rgba(23,87,133,.82),rgba(9,28,53,.9));border:1px solid rgba(131,231,255,.28);display:flex;flex-direction:column;justify-content:space-between}
    .pulse-number{font-size:70px;font-weight:800;line-height:1;color:#fff}.pulse-number small{font-size:18px;color:var(--cyan)}
    .pulse-line{height:7px;border-radius:9px;background:rgba(255,255,255,.12);overflow:hidden;margin:26px 0 10px}.pulse-line i{display:block;width:68%;height:100%;background:linear-gradient(90deg,var(--cyan),var(--coral));border-radius:inherit}
    .feedback-grid{display:grid;grid-template-columns:1.25fr .75fr;gap:18px}
    .feedback-main,.feedback-side{padding:34px;border-radius:20px;border:1px solid var(--line);background:var(--glass)}
    .feedback-main{min-height:260px}.quote-mark{font-size:58px;color:var(--coral);line-height:.8}.feedback-main blockquote{font-size:23px;line-height:1.6;margin:18px 0 25px;color:#f2f9ff}.feedback-meta{color:var(--muted);font-size:13px}
    .feedback-side{display:grid;gap:16px}.feedback-note{padding:16px;border-left:2px solid var(--cyan);background:rgba(84,185,255,.08)}.feedback-note strong{display:block}.feedback-note span{font-size:13px;color:var(--muted)}
    .method-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:14px}.method{padding:25px 21px;border-top:2px solid var(--blue);background:rgba(18,48,82,.45);border-radius:14px 14px 4px 4px}.method:nth-child(2){border-color:var(--cyan)}.method:nth-child(3){border-color:var(--coral)}.method:nth-child(4){border-color:var(--pink)}.method b{font-size:32px;color:rgba(131,231,255,.55);display:block}.method p{font-size:14px;color:var(--muted);margin:0}
    .faq-list{max-width:880px}.faq-item{border-bottom:1px solid var(--line)}.faq-question{width:100%;padding:21px 4px;background:none;border:0;color:#fff;text-align:left;display:flex;justify-content:space-between;align-items:center;font-weight:700;cursor:pointer}.faq-question span{font-size:24px;color:var(--cyan);transition:var(--ease)}.faq-answer{display:none;color:var(--muted);font-size:14px;padding:0 42px 20px 4px}.faq-item.open .faq-answer{display:block}.faq-item.open .faq-question span{transform:rotate(45deg);color:var(--coral)}
    .cta-section{padding:84px 0;background:linear-gradient(120deg,#0c345b,#102442 55%,#281e3c);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
    .cta-layout{display:flex;align-items:center;justify-content:space-between;gap:30px}.cta-layout p{color:#c3d8e9;max-width:620px;margin:0}
    footer{padding:62px 0 25px;background:#061225;border-top:1px solid var(--line)}.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr;gap:50px}.footer-brand p{color:var(--muted);max-width:360px;font-size:14px}.footer-col{display:grid;align-content:start;gap:9px}.footer-col h3{font-size:15px;margin-bottom:7px}.footer-col a{color:var(--muted);font-size:14px}.footer-col a:hover{color:var(--cyan)}.copyright{display:flex;justify-content:space-between;gap:20px;border-top:1px solid var(--line);margin-top:45px;padding-top:20px;color:#718ba4;font-size:12px}
    @media(max-width:1024px){.main-nav{gap:16px}.hero-layout{gap:35px}.method-grid{grid-template-columns:repeat(2,1fr)}}
    @media(max-width:768px){.container{width:min(100% - 32px,600px)}.topbar{min-height:68px}.menu-toggle{display:block}.main-nav{display:none;position:absolute;top:68px;left:0;right:0;margin:0;padding:18px 20px 24px;background:rgba(5,18,36,.98);border-bottom:1px solid var(--line);flex-direction:column;align-items:stretch;gap:0}.main-nav.open{display:flex}.main-nav a{padding:12px 0}.main-nav a:after{bottom:5px}.nav-cta{display:none}.page-hero{padding:126px 0 65px}.hero-layout,.feed-layout,.rhythm,.feedback-grid{grid-template-columns:1fr}.social-orbit{min-height:285px}.orbit-ring{width:230px;height:230px}.orbit-core{inset:78px}.channel-strip{grid-template-columns:repeat(2,1fr)}.channel-item:nth-child(2){border-right:0}.channel-item:nth-child(-n+2){border-bottom:1px solid var(--line)}.feed-card{grid-template-columns:75px 1fr}.feed-index{display:none}.method-grid{grid-template-columns:1fr 1fr}.cta-layout{display:block}.cta-layout .btn{margin-top:22px}.footer-grid{grid-template-columns:1fr 1fr;gap:28px}}
    @media(max-width:520px){h1{font-size:38px}.hero-copy{font-size:15px}.hero-actions .btn{width:100%}section{padding:70px 0}.channel-strip,.method-grid{grid-template-columns:1fr}.channel-item{border-right:0!important;border-bottom:1px solid var(--line)}.channel-item:last-child{border-bottom:0}.feed-card{padding:15px;gap:13px}.feed-thumb{height:65px}.feed-card h3{font-size:16px}.timeline-item{grid-template-columns:62px 1fr;gap:12px}.pulse-number{font-size:56px}.footer-grid{grid-template-columns:1fr}.copyright{display:block}.copyright span{display:block;margin-top:6px}}