/* roulang page: index */
:root{
      --ink:#07111f;
      --navy:#0a1728;
      --deep:#0e2037;
      --panel:rgba(15,36,61,.72);
      --panel-soft:rgba(12,30,51,.54);
      --line:rgba(107,211,255,.17);
      --line-strong:rgba(35,199,255,.55);
      --cyan:#23c7ff;
      --blue:#6e7cff;
      --coral:#ff9278;
      --text:#edf8ff;
      --muted:#91a9bc;
      --radius:22px;
      --shadow:0 22px 70px rgba(0,0,0,.28);
    }
    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{
      margin:0;background:
      radial-gradient(circle at 78% 12%,rgba(35,199,255,.12),transparent 26rem),
      linear-gradient(115deg,#07111f 0%,#09182a 54%,#0d223b 100%);
      color:var(--text);font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC","Helvetica Neue",sans-serif;
      line-height:1.75;overflow-x:hidden
    }
    a{color:inherit;text-decoration:none}
    button,input{font:inherit}
    button{cursor:pointer}
    .container{width:min(1240px,calc(100% - 40px));margin-inline:auto}
    .glass{background:var(--panel);border:1px solid var(--line);box-shadow:var(--shadow);backdrop-filter:blur(18px);-webkit-backdrop-filter:blur(18px)}
    .topbar{position:sticky;top:0;z-index:50;border-bottom:1px solid rgba(136,215,255,.12);background:rgba(7,17,31,.72);backdrop-filter:blur(20px)}
    .nav-shell{height:74px;display:flex;align-items:center;justify-content:space-between;gap:24px}
    .brand{display:flex;align-items:center;gap:11px;font-size:17px;font-weight:800;letter-spacing:-.03em;white-space:nowrap}
    .brand-mark{width:34px;height:34px;border-radius:12px;display:grid;place-items:center;color:#03101d;background:linear-gradient(135deg,#8be7ff,var(--cyan));box-shadow:0 0 24px rgba(35,199,255,.35)}
    .nav-links{display:flex;align-items:center;gap:8px;margin-right:auto;margin-left:22px}
    .nav-link{position:relative;padding:9px 13px;color:#a9bdcd;font-size:14px;border-radius:12px;transition:.2s}
    .nav-link:hover,.nav-link.active{color:#effcff;background:rgba(35,199,255,.1)}
    .nav-link.active:after{content:"";position:absolute;left:13px;right:13px;bottom:3px;height:2px;background:var(--cyan);box-shadow:0 0 10px var(--cyan)}
    .nav-actions{display:flex;align-items:center;gap:10px}
    .search{display:flex;align-items:center;gap:8px;width:40px;height:40px;padding:0 12px;border:1px solid var(--line);border-radius:14px;background:rgba(6,19,34,.6);transition:.25s;overflow:hidden}
    .search:focus-within{width:190px;border-color:var(--line-strong);box-shadow:0 0 0 3px rgba(35,199,255,.12)}
    .search input{width:130px;outline:0;border:0;background:transparent;color:var(--text);font-size:13px}
    .search input::placeholder{color:#7790a4}
    .btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;min-height:44px;padding:0 19px;border-radius:14px;font-size:14px;font-weight:700;border:1px solid transparent;transition:transform .2s,box-shadow .2s,background .2s}
    .btn:focus-visible,.nav-link:focus-visible,.filter:focus-visible,.faq-q:focus-visible{outline:3px solid rgba(35,199,255,.45);outline-offset:3px}
    .btn-primary{color:#03101d;background:linear-gradient(110deg,#77e3ff,var(--cyan));box-shadow:0 8px 28px rgba(35,199,255,.25)}
    .btn-primary:hover{transform:translateY(-3px);box-shadow:0 12px 38px rgba(35,199,255,.42);filter:brightness(1.06)}
    .btn-primary:active{transform:scale(.98)}
    .btn-ghost{color:#c8e7f3;background:rgba(19,48,76,.48);border-color:var(--line)}
    .btn-ghost:hover{border-color:var(--line-strong);background:rgba(35,199,255,.1)}
    .mobile-toggle{display:none;background:none;color:var(--text);border:1px solid var(--line);border-radius:12px;width:42px;height:42px}
    .hero{position:relative;padding:82px 0 40px;min-height:650px}
    .hero:before{content:"";position:absolute;inset:0;pointer-events:none;background:linear-gradient(90deg,transparent 48%,rgba(91,198,255,.07) 48.1%,transparent 48.3%)}
    .hero-grid{display:grid;grid-template-columns:46% 54%;align-items:center;gap:38px}
    .eyebrow,.section-kicker{display:inline-flex;align-items:center;gap:8px;color:#8fe7ff;font-size:12px;font-weight:800;letter-spacing:.12em}
    .eyebrow:before,.section-kicker:before{content:"";width:7px;height:7px;border-radius:50%;background:var(--cyan);box-shadow:0 0 13px var(--cyan)}
    h1{font-size:clamp(42px,5.1vw,64px);line-height:1.16;letter-spacing:-.06em;margin:18px 0 22px;max-width:680px}
    .hero-copy{color:#aac0cf;font-size:17px;max-width:600px;margin-bottom:28px}
    .hero-actions{display:flex;flex-wrap:wrap;gap:12px}
    .trust-line{display:flex;flex-wrap:wrap;gap:18px;margin-top:27px;color:#91a9bc;font-size:12px}
    .trust-line span{display:inline-flex;align-items:center;gap:7px}
    .trust-line i{width:7px;height:7px;border-radius:50%;background:#5fe1b1}
    .pain-tags{display:grid;grid-template-columns:repeat(3,1fr);gap:10px;margin-top:40px}
    .pain{padding:13px 14px;border:1px solid var(--line);background:rgba(10,29,49,.55);border-radius:16px}
    .pain strong{display:block;font-size:13px;color:#e9faff}.pain small{display:block;color:var(--muted);font-size:11px;line-height:1.5;margin-top:3px}
    .screen-wall{position:relative;min-height:450px;padding:18px}
    .screen-wall:before{content:"";position:absolute;inset:30px 5%;border-radius:40px;background:radial-gradient(circle,rgba(35,199,255,.18),transparent 65%);filter:blur(20px)}
    .cover-main{position:relative;width:260px;height:385px;margin:22px auto 0;border-radius:25px;overflow:hidden;border:1px solid rgba(128,224,255,.36);background:linear-gradient(145deg,#173d60 0%,#0d2039 46%,#14234d 100%);box-shadow:0 28px 60px rgba(0,0,0,.45)}
    .cover-main:before{content:"";position:absolute;width:180px;height:420px;right:-40px;top:-30px;background:linear-gradient(160deg,transparent,rgba(35,199,255,.42),transparent);transform:rotate(24deg)}
    .cover-main:after{content:"";position:absolute;inset:25% 15%;border:1px solid rgba(151,236,255,.3);border-radius:50%;box-shadow:0 0 0 22px rgba(35,199,255,.04),0 0 0 44px rgba(110,124,255,.05)}
    .cover-copy{position:absolute;z-index:2;left:22px;right:22px;bottom:24px}
    .cover-copy b{display:block;font-size:20px;line-height:1.35}.cover-copy span{color:#a9d7e9;font-size:12px}
    .float-card{position:absolute;padding:14px 16px;border-radius:16px;background:rgba(11,31,52,.88);border:1px solid var(--line-strong);box-shadow:0 16px 40px rgba(0,0,0,.3);font-size:12px}
    .float-card strong{display:block;font-size:14px;margin-bottom:3px}.float-card em{font-style:normal;color:#8fdff7}
    .float-one{top:54px;left:3%}.float-two{right:0;top:145px}.float-three{bottom:38px;left:6%}
    .mini-stripe{position:absolute;right:5%;bottom:72px;width:170px;height:8px;border-radius:99px;background:#163651;overflow:hidden}.mini-stripe span{display:block;width:68%;height:100%;background:var(--cyan);box-shadow:0 0 14px var(--cyan)}
    .ticker{border-top:1px solid var(--line);border-bottom:1px solid var(--line);padding:14px 0;color:#92adbf;font-size:12px}
    .ticker-inner{display:flex;justify-content:space-between;gap:22px;flex-wrap:wrap}.ticker b{color:#d9f7ff;font-weight:600}
    section{padding:105px 0}.section-head{display:flex;justify-content:space-between;align-items:end;gap:24px;margin-bottom:36px}.section-head h2{font-size:clamp(29px,3.4vw,42px);line-height:1.25;letter-spacing:-.045em;margin:10px 0 0}.section-head p{max-width:530px;color:var(--muted);margin:0;font-size:15px}
    .solution{display:grid;grid-template-columns:30% 1fr;gap:30px;align-items:start}
    .path-card{padding:25px;border-radius:var(--radius);position:sticky;top:100px}.path-card h3{margin:0 0 18px;font-size:20px}.path-tags{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:25px}.tag{display:inline-flex;padding:5px 10px;border-radius:99px;background:rgba(35,199,255,.1);border:1px solid rgba(35,199,255,.22);color:#a9eaff;font-size:12px}
    .steps{border-left:1px solid rgba(106,210,255,.3);padding-left:20px}.step{position:relative;margin:19px 0;color:#99b1c1;font-size:13px}.step:before{content:"";position:absolute;left:-25px;top:9px;width:9px;height:9px;border-radius:50%;background:#193e5d;border:2px solid var(--cyan)}.step.active{color:#e6faff}.preview-bar{height:112px;margin-top:22px;border-radius:15px;background:linear-gradient(120deg,#16415d,#192b59);position:relative;overflow:hidden}.preview-bar:after{content:"";position:absolute;inset:0;background:linear-gradient(110deg,transparent 20%,rgba(115,225,255,.24),transparent 70%);transform:skewX(-18deg)}
    .feature-grid{display:grid;grid-template-columns:1.15fr .85fr;gap:16px}.feature-card{padding:24px;border-radius:19px;min-height:170px;transition:.25s}.feature-card:hover,.quote:hover,.result-item:hover{transform:translateY(-5px);border-color:var(--line-strong);box-shadow:0 18px 44px rgba(0,0,0,.24)}.feature-card:nth-child(2),.feature-card:nth-child(3){min-height:140px}.feature-card h3{font-size:19px;margin:17px 0 6px}.feature-card p{color:var(--muted);font-size:13px;margin:0}.icon{width:35px;height:35px;border-radius:12px;display:grid;place-items:center;color:#07111f;background:linear-gradient(135deg,#9ceaff,var(--cyan));font-weight:900}
    .action-strip{grid-column:1/-1;padding:15px 18px;border-radius:15px;border:1px solid var(--line);display:flex;justify-content:space-between;align-items:center;gap:15px;color:#a6bdcc;font-size:13px}
    .dashboard{display:grid;grid-template-columns:34% 1fr;gap:20px;padding:28px;border-radius:25px;background:linear-gradient(135deg,rgba(18,48,76,.8),rgba(10,27,48,.78));border:1px solid var(--line)}
    .big-status{padding:18px 12px;border-right:1px solid var(--line)}.big-status strong{display:block;font-size:64px;line-height:1;color:#c9f7ff;letter-spacing:-.08em}.big-status b{display:block;color:#75ddff;font-size:19px;margin:12px 0 8px}.big-status p{color:var(--muted);font-size:13px;margin:0}
    .result-list{display:grid;gap:12px}.result-item{display:flex;align-items:center;gap:16px;padding:16px 18px;border:1px solid var(--line);border-radius:16px;transition:.25s}.result-item .dot{width:10px;height:10px;border-radius:50%;background:#5fe1b1;box-shadow:0 0 14px rgba(95,225,177,.6);flex:none}.result-item strong{display:block;font-size:15px}.result-item span{display:block;color:var(--muted);font-size:12px}.result-item b{margin-left:auto;color:#8fe7ff;font-size:13px;white-space:nowrap}
    .feedback-track{display:grid;grid-template-columns:1.2fr 1fr 1fr;gap:16px}.quote{padding:25px;border-radius:20px;transition:.25s}.quote:first-child{background:linear-gradient(145deg,rgba(21,65,91,.9),rgba(13,34,58,.78));}.quote-head{display:flex;align-items:center;gap:12px;margin-bottom:18px}.avatar{width:40px;height:40px;border-radius:14px;display:grid;place-items:center;background:linear-gradient(135deg,#6e7cff,#23c7ff);color:#fff;font-weight:800}.quote small{color:#84dff8}.quote p{font-size:15px;color:#d5e7ef;line-height:1.8;margin:0}.stars{color:#83e5ff;letter-spacing:3px;margin-top:20px}
    .faq-list{max-width:900px;margin:auto;display:grid;gap:10px}.faq-item{border:1px solid var(--line);border-radius:16px;background:var(--panel-soft);overflow:hidden}.faq-q{width:100%;padding:19px 22px;background:none;border:0;color:var(--text);display:flex;justify-content:space-between;text-align:left;font-weight:700}.faq-q span:last-child{color:var(--cyan);font-size:22px;transition:.2s}.faq-a{max-height:0;overflow:hidden;color:var(--muted);font-size:14px;padding:0 22px;transition:max-height .24s ease,padding .24s ease}.faq-item.open .faq-a{max-height:150px;padding:0 22px 19px}.faq-item.open .faq-q span:last-child{transform:rotate(45deg)}
    .cta{padding:46px;border-radius:28px;display:grid;grid-template-columns:1fr 38%;align-items:center;gap:30px;background:linear-gradient(115deg,rgba(20,61,88,.9),rgba(19,35,76,.78));border:1px solid rgba(87,211,255,.33)}.cta h2{font-size:clamp(28px,3.6vw,42px);line-height:1.25;margin:11px 0 12px}.cta p{color:#a8c0ce;max-width:590px}.cta-visual{min-height:160px;position:relative;border-radius:20px;background:rgba(3,16,29,.44);border:1px solid var(--line);padding:18px}.tag-cloud{display:flex;flex-wrap:wrap;gap:9px;align-content:center;height:100%}.tag-cloud .tag:nth-child(2n){border-color:rgba(110,124,255,.35);color:#c3c9ff}.cta-note{font-size:12px;color:#849dad;margin-top:18px}
    footer{border-top:1px solid var(--line);padding:55px 0 28px;background:rgba(4,13,24,.65)}.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:35px}.footer-brand p{color:var(--muted);font-size:13px;max-width:300px}.footer h3{font-size:14px;margin:0 0 15px}.footer a{display:block;color:#91a9bc;font-size:13px;margin:9px 0;transition:.2s}.footer a:hover{color:var(--cyan)}.copyright{display:flex;justify-content:space-between;gap:20px;border-top:1px solid var(--line);margin-top:35px;padding-top:20px;color:#718899;font-size:12px}
    .top-btn{position:fixed;right:22px;bottom:22px;width:44px;height:44px;border:1px solid var(--line);border-radius:14px;background:rgba(10,28,47,.9);color:var(--cyan);opacity:0;pointer-events:none;transition:.2s;z-index:40}.top-btn.show{opacity:1;pointer-events:auto}
    @media(max-width:900px){.hero-grid,.solution,.dashboard,.cta{grid-template-columns:1fr}.hero{padding-top:55px}.screen-wall{min-height:390px}.big-status{border-right:0;border-bottom:1px solid var(--line);padding-bottom:25px}.path-card{position:static}.footer-grid{grid-template-columns:2fr 1fr 1fr}}
    @media(max-width:700px){.container{width:min(100% - 32px,1240px)}.nav-shell{height:66px}.nav-links,.nav-actions .btn-primary{display:none}.mobile-toggle{display:block}.nav-actions{margin-left:auto}.brand{font-size:14px}.search:focus-within{width:150px}.hero{padding:48px 0 24px;min-height:auto}h1{font-size:42px}.hero-copy{font-size:15px}.pain-tags{grid-template-columns:1fr}.screen-wall{padding:0;min-height:365px}.cover-main{width:220px;height:325px}.float-one{left:0}.float-two{right:-3px}.float-three{left:0;bottom:10px}.ticker-inner{display:grid;gap:6px}section{padding:72px 0}.section-head{display:block;margin-bottom:26px}.section-head p{margin-top:14px}.feature-grid,.feedback-track{grid-template-columns:1fr}.feature-card,.feature-card:nth-child(2),.feature-card:nth-child(3){min-height:150px}.action-strip{align-items:flex-start;flex-direction:column}.cta{padding:28px 22px}.footer-grid{grid-template-columns:1fr 1fr;gap:25px}.footer-brand{grid-column:1/-1}.copyright{display:block}.copyright span{display:block;margin-top:7px}}
    @media(prefers-reduced-motion:reduce){*,*:before,*:after{scroll-behavior:auto!important;animation:none!important;transition:none!important}.feature-card:hover,.quote:hover,.result-item:hover{transform:none}}

/* roulang page: category2 */
:root{--ink:#07111f;--navy:#0a1728;--deep:#0e2037;--panel:rgba(15,36,61,.72);--panel-soft:rgba(12,30,51,.54);--line:rgba(107,211,255,.17);--line-strong:rgba(35,199,255,.55);--cyan:#23c7ff;--blue:#6e7cff;--coral:#ff9278;--text:#edf8ff;--muted:#91a9bc;--radius:22px;--shadow:0 22px 70px rgba(0,0,0,.28)}
*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:radial-gradient(circle at 78% 12%,rgba(35,199,255,.12),transparent 26rem),linear-gradient(115deg,#07111f 0%,#09182a 54%,#0d223b 100%);color:var(--text);font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC","Helvetica Neue",sans-serif;line-height:1.75;overflow-x:hidden}a{color:inherit;text-decoration:none}button,input{font:inherit}button{cursor:pointer}.container{width:min(1240px,calc(100% - 40px));margin-inline:auto}.topbar{position:sticky;top:0;z-index:50;border-bottom:1px solid rgba(136,215,255,.12);background:rgba(7,17,31,.72);backdrop-filter:blur(20px)}.nav-shell{height:74px;display:flex;align-items:center;justify-content:space-between;gap:24px}.brand{display:flex;align-items:center;gap:11px;font-size:17px;font-weight:800;letter-spacing:-.03em;white-space:nowrap}.brand-mark{width:34px;height:34px;border-radius:12px;display:grid;place-items:center;color:#03101d;background:linear-gradient(135deg,#8be7ff,var(--cyan));box-shadow:0 0 24px rgba(35,199,255,.35)}.nav-links{display:flex;align-items:center;gap:8px;margin-right:auto;margin-left:22px}.nav-link{position:relative;padding:9px 13px;color:#a9bdcd;font-size:14px;border-radius:12px;transition:.2s}.nav-link:hover,.nav-link.active{color:#effcff;background:rgba(35,199,255,.1)}.nav-link.active:after{content:"";position:absolute;left:13px;right:13px;bottom:3px;height:2px;background:var(--cyan);box-shadow:0 0 10px var(--cyan)}.nav-actions{display:flex;align-items:center;gap:10px}.search{display:flex;align-items:center;gap:8px;width:40px;height:40px;padding:0 12px;border:1px solid var(--line);border-radius:14px;background:rgba(6,19,34,.6);transition:.25s;overflow:hidden}.search:focus-within{width:190px;border-color:var(--line-strong);box-shadow:0 0 0 3px rgba(35,199,255,.12)}.search input{width:130px;outline:0;border:0;background:transparent;color:var(--text);font-size:13px}.search input::placeholder{color:#7790a4}.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;min-height:44px;padding:0 19px;border-radius:14px;font-size:14px;font-weight:700;border:1px solid transparent;transition:transform .2s,box-shadow .2s,background .2s}.btn:focus-visible,.nav-link:focus-visible,.filter:focus-visible,.faq-q:focus-visible,.mobile-toggle:focus-visible{outline:3px solid rgba(35,199,255,.45);outline-offset:3px}.btn-primary{color:#03101d;background:linear-gradient(110deg,#77e3ff,var(--cyan));box-shadow:0 8px 28px rgba(35,199,255,.25)}.btn-primary:hover{transform:translateY(-3px);box-shadow:0 12px 38px rgba(35,199,255,.42);filter:brightness(1.06)}.btn-primary:active{transform:scale(.98)}.btn-ghost{color:#c8e7f3;background:rgba(19,48,76,.48);border-color:var(--line)}.btn-ghost:hover{border-color:var(--line-strong);background:rgba(35,199,255,.1)}.mobile-toggle{display:none;background:none;color:var(--text);border:1px solid var(--line);border-radius:12px;width:42px;height:42px}.glass{background:var(--panel);border:1px solid var(--line);backdrop-filter:blur(18px);box-shadow:var(--shadow)}.eyebrow,.section-kicker{display:inline-flex;align-items:center;gap:8px;color:#8fe7ff;font-size:12px;font-weight:800;letter-spacing:.12em}.eyebrow:before,.section-kicker:before{content:"";width:7px;height:7px;border-radius:50%;background:var(--cyan);box-shadow:0 0 13px var(--cyan)}.tag,.filter{display:inline-flex;align-items:center;gap:6px;padding:6px 11px;border-radius:99px;background:rgba(35,199,255,.1);border:1px solid rgba(35,199,255,.22);color:#a9eaff;font-size:12px;white-space:nowrap}.filter{padding:9px 15px;color:#9db5c5;background:rgba(12,30,51,.65);transition:.2s}.filter:hover,.filter.active{color:#03101d;background:var(--cyan);border-color:var(--cyan);box-shadow:0 0 20px rgba(35,199,255,.25)}.hero{padding:62px 0 48px;position:relative;overflow:hidden}.hero:before{content:"";position:absolute;inset:0;pointer-events:none;background:linear-gradient(90deg,transparent 34.8%,rgba(91,198,255,.07) 35%,transparent 35.2%)}.hero-grid{display:grid;grid-template-columns:35% 65%;gap:36px;align-items:center}.hero h1{font-size:clamp(38px,5vw,60px);line-height:1.18;letter-spacing:-.055em;margin:18px 0 20px}.hero-copy{color:#aac0cf;font-size:16px;max-width:420px;margin:0 0 24px}.hero-actions{display:flex;gap:12px;flex-wrap:wrap}.hero-tags{display:flex;gap:8px;flex-wrap:wrap;margin:25px 0 0}.stage{min-height:340px;position:relative;display:flex;align-items:center;justify-content:center}.stage-strip{width:74%;height:220px;border-radius:24px;position:relative;overflow:hidden;background:linear-gradient(110deg,#173b5a,#0e213c 52%,#172758);border:1px solid rgba(119,226,255,.32);box-shadow:0 26px 65px rgba(0,0,0,.42)}.stage-strip:before{content:"";position:absolute;inset:-40% 35% -40% 20%;background:linear-gradient(110deg,transparent,rgba(35,199,255,.42),transparent);transform:rotate(17deg)}.stage-strip:after{content:"";position:absolute;inset:28px;border:1px solid rgba(143,231,255,.22);border-radius:18px;box-shadow:inset 0 0 45px rgba(35,199,255,.08)}.stage-label{position:absolute;z-index:2;left:25px;top:22px;color:#8deaff;font-size:12px}.stage-title{position:absolute;z-index:2;left:25px;bottom:22px;font-size:23px;font-weight:800}.rail-card{position:absolute;width:145px;height:190px;border-radius:18px;overflow:hidden;border:1px solid var(--line-strong);background:linear-gradient(145deg,#224c6c,#111e3c);box-shadow:0 20px 45px rgba(0,0,0,.4)}.rail-card:before{content:"";position:absolute;inset:18% 15%;border:1px solid rgba(151,236,255,.32);border-radius:50%;box-shadow:0 0 0 18px rgba(35,199,255,.05)}.rail-card span{position:absolute;bottom:14px;left:14px;font-size:12px;color:#e9faff}.rail-a{left:1%;top:18px;transform:rotate(-5deg)}.rail-b{right:2%;bottom:9px;transform:rotate(5deg);background:linear-gradient(145deg,#293b72,#101e38)}.stage-stat{position:absolute;right:7%;top:4px;padding:11px 14px;border:1px solid var(--line-strong);border-radius:14px;background:rgba(9,25,43,.9);font-size:12px;color:#aeeeff}.stage-stat strong{display:block;color:#effcff;font-size:17px}.filters{padding:20px 0;border-top:1px solid var(--line);border-bottom:1px solid var(--line);overflow:hidden}.filter-row{display:flex;gap:9px;overflow-x:auto;scrollbar-width:none}.filter-row::-webkit-scrollbar{display:none}.content-layout{display:grid;grid-template-columns:280px minmax(0,1fr);gap:28px;padding:72px 0 94px}.side-panel{padding:24px;border-radius:22px;height:max-content;position:sticky;top:100px}.side-panel h2{font-size:21px;margin:0 0 8px}.side-panel p{color:var(--muted);font-size:13px;margin:0 0 21px}.side-list{display:grid;gap:7px;margin:0 0 23px;padding:0;list-style:none}.side-list a{display:flex;justify-content:space-between;padding:10px 12px;border-radius:12px;color:#a9bdcd;font-size:13px}.side-list a:hover,.side-list a.active{color:#eafaff;background:rgba(35,199,255,.1)}.notice{padding:15px;border-radius:16px;background:rgba(255,146,120,.06);border:1px solid rgba(255,146,120,.22);color:#cbb9b5;font-size:12px}.notice b{color:#ffb09d}.main-stage h2{font-size:clamp(28px,3vw,38px);line-height:1.25;margin:0 0 7px;letter-spacing:-.04em}.main-stage>p{color:var(--muted);margin:0 0 25px;font-size:14px}.recommend-row{display:grid;grid-template-columns:1.35fr .8fr;gap:14px;margin-bottom:30px}.recommend{min-height:190px;padding:22px;border-radius:20px;position:relative;overflow:hidden;background:linear-gradient(115deg,rgba(20,57,84,.9),rgba(16,31,62,.78));border:1px solid var(--line);transition:.25s}.recommend:hover,.media-item:hover{border-color:var(--line-strong);transform:translateY(-4px)}.recommend h3{font-size:20px;margin:40px 0 5px;position:relative}.recommend p{position:relative;color:#a9c0cf;font-size:13px;max-width:360px;margin:0}.recommend:after{content:"";position:absolute;width:180px;height:180px;border:1px solid rgba(112,223,255,.25);border-radius:50%;right:-20px;bottom:-75px;box-shadow:0 0 0 20px rgba(35,199,255,.04),0 0 0 40px rgba(35,199,255,.03)}.recommend.small{background:linear-gradient(145deg,rgba(32,43,84,.84),rgba(11,30,52,.8))}.recommend.small h3{margin-top:65px;font-size:17px}.media-list{display:grid;gap:12px}.media-item{display:grid;grid-template-columns:138px minmax(0,1fr) auto;gap:18px;align-items:center;padding:13px;border-radius:18px;transition:.25s}.thumb{height:108px;border-radius:13px;position:relative;overflow:hidden;background:linear-gradient(145deg,#1c5371,#142449 60%,#252d63);border:1px solid rgba(124,222,255,.22)}.thumb:before{content:"";position:absolute;width:110px;height:190px;right:5px;top:-34px;transform:rotate(28deg);background:linear-gradient(110deg,transparent,rgba(35,199,255,.34),transparent)}.thumb:after{content:"";position:absolute;inset:24px 30px;border:1px solid rgba(178,240,255,.3);border-radius:50%}.media-text h3{font-size:16px;margin:0 0 5px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.media-text p{font-size:13px;color:var(--muted);margin:0;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}.meta{color:#7891a4;font-size:12px;white-space:nowrap}.status{display:inline-flex;align-items:center;gap:6px;color:#9ceacb;font-size:12px}.status i{width:7px;height:7px;border-radius:50%;background:#5fe1b1;box-shadow:0 0 10px #5fe1b1}.insert-card{padding:20px 22px;border-radius:18px;border:1px solid rgba(110,124,255,.3);background:linear-gradient(100deg,rgba(39,47,93,.55),rgba(17,41,67,.7));display:flex;align-items:center;justify-content:space-between;gap:18px}.insert-card h3{margin:0;font-size:17px}.insert-card p{color:var(--muted);font-size:13px;margin:3px 0 0}.faq-section{padding:0 0 90px}.section-head{display:flex;justify-content:space-between;align-items:end;gap:24px;margin-bottom:27px}.section-head h2{font-size:clamp(28px,3vw,38px);line-height:1.25;margin:9px 0 0;letter-spacing:-.04em}.faq-list{max-width:920px;margin:auto;display:grid;gap:10px}.faq-item{border:1px solid var(--line);border-radius:16px;background:rgba(12,30,51,.58);overflow:hidden}.faq-q{width:100%;display:flex;align-items:center;justify-content:space-between;text-align:left;padding:18px 21px;background:none;border:0;color:var(--text);font-weight:700}.faq-q span:last-child{font-size:22px;color:var(--cyan);transition:.2s}.faq-a{max-height:0;overflow:hidden;color:var(--muted);font-size:14px;padding:0 21px;transition:max-height .24s ease,padding .24s ease}.faq-item.open .faq-a{max-height:180px;padding:0 21px 18px}.faq-item.open .faq-q span:last-child{transform:rotate(45deg)}.cta{padding:34px;border-radius:25px;display:flex;align-items:center;justify-content:space-between;gap:25px;margin-bottom:90px;background:linear-gradient(110deg,rgba(15,52,79,.9),rgba(20,35,70,.78));border:1px solid var(--line-strong);box-shadow:var(--shadow)}.cta h2{font-size:clamp(25px,3vw,36px);line-height:1.3;margin:8px 0}.cta p{color:#a9bfce;margin:0 0 20px;font-size:14px}.cta-visual{display:flex;gap:9px;align-items:end}.mini-cover{width:76px;height:112px;border-radius:12px;background:linear-gradient(145deg,#2c6680,#17275a);border:1px solid rgba(142,230,255,.32);transform:rotate(7deg)}.mini-cover:nth-child(2){height:145px;transform:rotate(-4deg);background:linear-gradient(145deg,#35477f,#102943)}.mini-cover:nth-child(3){transform:rotate(8deg)}.footer{border-top:1px solid rgba(136,215,255,.13);background:rgba(4,13,25,.72);padding:55px 0 24px}.footer-grid{display:grid;grid-template-columns:1.6fr repeat(3,1fr);gap:35px}.footer-brand p{color:var(--muted);font-size:13px;max-width:280px}.footer h3{font-size:14px;margin:0 0 13px;color:#dff8ff}.footer-grid>div:not(.footer-brand) a{display:block;color:#8da6b8;font-size:13px;margin:7px 0}.footer-grid a:hover{color:var(--cyan)}.copyright{display:flex;justify-content:space-between;gap:20px;border-top:1px solid var(--line);margin-top:35px;padding-top:20px;color:#6f8798;font-size:12px}.backtop{position:fixed;right:22px;bottom:22px;width:43px;height:43px;border-radius:13px;border:1px solid var(--line);background:rgba(8,24,41,.86);color:var(--cyan);opacity:0;pointer-events:none;transition:.2s}.backtop.show{opacity:1;pointer-events:auto}.mobile-menu{display:none}.muted-line{height:1px;background:linear-gradient(90deg,var(--cyan),transparent);opacity:.35;margin:28px 0}@media(max-width:900px){.hero-grid{grid-template-columns:1fr}.hero{padding-top:45px}.stage{min-height:300px}.content-layout{grid-template-columns:1fr}.side-panel{position:relative;top:auto}.side-list{display:flex;overflow:auto}.side-list a{min-width:max-content}.footer-grid{grid-template-columns:1.4fr repeat(2,1fr)}.footer-grid>div:last-child{grid-column:2}.recommend-row{grid-template-columns:1fr 1fr}}@media(max-width:640px){.container{width:min(100% - 32px,1240px)}.nav-shell{height:66px}.brand{font-size:14px}.brand-mark{width:31px;height:31px}.nav-links,.nav-actions .btn-primary{display:none}.mobile-toggle{display:grid;place-items:center}.nav-actions{margin-left:auto}.search:focus-within{width:145px}.hero h1{font-size:38px}.hero-copy{font-size:15px}.stage-strip{width:82%;height:180px}.rail-card{width:105px;height:145px}.rail-a{left:0}.rail-b{right:0}.stage-title{font-size:18px;bottom:18px;left:18px}.stage-label{left:18px;top:17px}.stage-stat{right:0}.content-layout{padding:48px 0 66px}.recommend-row{grid-template-columns:1fr}.recommend.small{min-height:150px}.media-item{grid-template-columns:1fr;gap:11px}.thumb{height:170px}.media-text h3{white-space:normal}.meta{display:flex;justify-content:space-between}.insert-card,.cta{align-items:flex-start;flex-direction:column}.cta{padding:25px;margin-bottom:60px}.cta-visual{align-self:center}.footer{padding-top:40px}.footer-grid{grid-template-columns:1fr 1fr;gap:25px}.footer-brand{grid-column:1/-1}.footer-grid>div:last-child{grid-column:auto}.copyright{flex-direction:column;gap:7px}.faq-section{padding-bottom:62px}}
@media(prefers-reduced-motion:reduce){*,*:before,*:after{scroll-behavior:auto!important;animation:none!important;transition:none!important}}

/* roulang page: category1 */
:root{
      --ink:#07111f;--navy:#0a1728;--deep:#0e2037;
      --panel:rgba(15,36,61,.72);--panel-soft:rgba(12,30,51,.54);
      --line:rgba(107,211,255,.17);--line-strong:rgba(35,199,255,.55);
      --cyan:#23c7ff;--blue:#6e7cff;--coral:#ff9278;
      --text:#edf8ff;--muted:#91a9bc;--radius:22px;
      --shadow:0 22px 70px rgba(0,0,0,.28)
    }
    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{margin:0;background:radial-gradient(circle at 78% 8%,rgba(35,199,255,.13),transparent 27rem),linear-gradient(115deg,#07111f,#09182a 54%,#0d223b);color:var(--text);font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC","Helvetica Neue",sans-serif;line-height:1.75;overflow-x:hidden}
    a{color:inherit;text-decoration:none}button,input{font:inherit}button{cursor:pointer}
    .container{width:min(1240px,calc(100% - 40px));margin:auto}
    .topbar{position:sticky;top:0;z-index:50;border-bottom:1px solid rgba(136,215,255,.12);background:rgba(7,17,31,.78);backdrop-filter:blur(20px)}
    .nav-shell{height:74px;display:flex;align-items:center;gap:24px}
    .brand{display:flex;align-items:center;gap:11px;font-size:17px;font-weight:800;letter-spacing:-.03em;white-space:nowrap}
    .brand-mark{width:34px;height:34px;border-radius:12px;display:grid;place-items:center;color:#03101d;background:linear-gradient(135deg,#8be7ff,var(--cyan));box-shadow:0 0 24px rgba(35,199,255,.35)}
    .nav-links{display:flex;align-items:center;gap:8px;margin-left:22px}
    .nav-link{position:relative;padding:9px 13px;color:#a9bdcd;font-size:14px;border-radius:12px;transition:.2s}
    .nav-link:hover,.nav-link.active{color:#effcff;background:rgba(35,199,255,.1)}
    .nav-link.active:after{content:"";position:absolute;left:13px;right:13px;bottom:3px;height:2px;background:var(--cyan);box-shadow:0 0 10px var(--cyan)}
    .nav-actions{display:flex;align-items:center;gap:10px;margin-left:auto}
    .search{display:flex;align-items:center;gap:8px;width:40px;height:40px;padding:0 12px;border:1px solid var(--line);border-radius:14px;background:rgba(6,19,34,.6);transition:.25s;overflow:hidden}
    .search:focus-within{width:190px;border-color:var(--line-strong);box-shadow:0 0 0 3px rgba(35,199,255,.12)}
    .search input{width:130px;outline:0;border:0;background:transparent;color:var(--text);font-size:13px}
    .search input::placeholder{color:#7790a4}
    .btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;min-height:44px;padding:0 19px;border-radius:14px;font-size:14px;font-weight:700;border:1px solid transparent;transition:transform .2s,box-shadow .2s,background .2s}
    .btn:focus-visible,.nav-link:focus-visible,.filter:focus-visible,.faq-q:focus-visible,.mobile-toggle:focus-visible{outline:3px solid rgba(35,199,255,.45);outline-offset:3px}
    .btn-primary{color:#03101d;background:linear-gradient(110deg,#77e3ff,var(--cyan));box-shadow:0 8px 28px rgba(35,199,255,.25)}
    .btn-primary:hover{transform:translateY(-3px);box-shadow:0 12px 38px rgba(35,199,255,.42);filter:brightness(1.06)}
    .btn-primary:active{transform:scale(.98)}
    .btn-ghost{color:#c8e7f3;background:rgba(19,48,76,.48);border-color:var(--line)}
    .btn-ghost:hover{border-color:var(--line-strong);background:rgba(35,199,255,.1)}
    .mobile-toggle{display:none;background:none;color:var(--text);border:1px solid var(--line);border-radius:12px;width:42px;height:42px}
    .glass{background:var(--panel);border:1px solid var(--line);box-shadow:var(--shadow);backdrop-filter:blur(18px)}
    .page-hero{position:relative;padding:62px 0 54px;border-bottom:1px solid rgba(107,211,255,.12);overflow:hidden}
    .page-hero:after{content:"";position:absolute;width:480px;height:480px;right:3%;top:-210px;border:1px solid rgba(35,199,255,.14);border-radius:50%;box-shadow:0 0 0 34px rgba(35,199,255,.025),0 0 0 70px rgba(110,124,255,.025);pointer-events:none}
    .hero-grid{display:grid;grid-template-columns:48% 52%;align-items:center;gap:40px;position:relative;z-index:1}
    .eyebrow,.section-kicker{display:inline-flex;align-items:center;gap:8px;color:#8fe7ff;font-size:12px;font-weight:800;letter-spacing:.12em}
    .eyebrow:before,.section-kicker:before{content:"";width:7px;height:7px;border-radius:50%;background:var(--cyan);box-shadow:0 0 13px var(--cyan)}
    h1{font-size:clamp(36px,5vw,56px);line-height:1.18;letter-spacing:-.055em;margin:15px 0 17px}
    h2{font-size:clamp(28px,3.3vw,40px);line-height:1.25;letter-spacing:-.045em;margin:10px 0}
    h3{font-size:19px;line-height:1.4;margin:0}
    .hero-copy,.section-desc{color:var(--muted);font-size:16px;max-width:580px}
    .hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:25px}
    .hero-tags,.filters{display:flex;gap:9px;flex-wrap:wrap}
    .hero-tags{margin-top:25px}.tag,.filter{display:inline-flex;align-items:center;padding:6px 12px;border-radius:99px;background:rgba(35,199,255,.1);border:1px solid rgba(35,199,255,.22);color:#a9eaff;font-size:12px}
    .filter{background:rgba(10,28,48,.7);color:#9db6c7;transition:.2s;white-space:nowrap}
    .filter:hover,.filter.active{color:#021522;background:var(--cyan);border-color:var(--cyan);box-shadow:0 0 22px rgba(35,199,255,.25)}
    .visual-stage{min-height:300px;position:relative;display:flex;align-items:center;justify-content:center}
    .visual-main{width:270px;height:330px;border-radius:24px;position:relative;overflow:hidden;padding:22px;display:flex;flex-direction:column;justify-content:space-between;background:linear-gradient(145deg,#174b6a,#0b2038 52%,#192650);border:1px solid rgba(128,224,255,.4);box-shadow:0 24px 60px rgba(0,0,0,.42)}
    .visual-main:before{content:"";position:absolute;width:170px;height:420px;right:-35px;top:-60px;transform:rotate(25deg);background:linear-gradient(160deg,transparent,rgba(35,199,255,.4),transparent)}
    .visual-main:after{content:"";position:absolute;inset:25% 14%;border:1px solid rgba(151,236,255,.3);border-radius:50%;box-shadow:0 0 0 24px rgba(35,199,255,.04),0 0 0 48px rgba(110,124,255,.05)}
    .visual-content{position:relative;z-index:1}.visual-title{font-size:25px;font-weight:800;line-height:1.3}
    .visual-foot{font-size:12px;color:#b5d9e8;position:relative;z-index:1}
    .float-card{position:absolute;padding:13px 15px;border-radius:16px;background:rgba(11,31,52,.9);border:1px solid var(--line-strong);box-shadow:0 16px 40px rgba(0,0,0,.3);font-size:12px}
    .float-card strong{display:block;font-size:14px;margin-bottom:2px}.float-card em{font-style:normal;color:#8fdff7}
    .float-one{right:4%;top:22px}.float-two{left:2%;bottom:17px}
    main section{padding:76px 0}.section-head{display:flex;justify-content:space-between;align-items:end;gap:24px;margin-bottom:28px}
    .section-head p{max-width:500px;color:var(--muted);margin:0;font-size:14px}
    .filter-wrap{padding:19px 21px;margin-bottom:30px;border-radius:18px}
    .feature-layout{display:grid;grid-template-columns:1.35fr .8fr;gap:16px}
    .feature-large,.feature-small{position:relative;overflow:hidden;border-radius:20px;min-height:265px;padding:23px;display:flex;flex-direction:column;justify-content:end;background:linear-gradient(145deg,#164668,#0c2038 58%,#1d2851);border:1px solid var(--line);transition:.25s}
    .feature-small{min-height:124px;background:linear-gradient(135deg,#122f4b,#0b1b31)}
    .feature-large:hover,.feature-small:hover,.content-card:hover{transform:translateY(-5px);border-color:var(--line-strong);box-shadow:0 18px 44px rgba(0,0,0,.28)}
    .feature-large:before,.feature-small:before,.cover:before{content:"";position:absolute;inset:0;background:linear-gradient(0deg,rgba(3,12,23,.92),transparent 70%)}
    .feature-large:after,.feature-small:after{content:"";position:absolute;width:190px;height:100%;right:5%;top:-30%;transform:rotate(25deg);background:linear-gradient(90deg,transparent,rgba(35,199,255,.25),transparent)}
    .feature-stack{display:grid;gap:16px}.card-content{position:relative;z-index:1}.meta{font-size:12px;color:#91b6c8;margin-top:7px}.play{display:inline-flex;align-items:center;gap:7px;color:#8fe7ff;font-size:12px;margin-bottom:8px}
    .content-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
    .content-card{overflow:hidden;border-radius:18px;background:var(--panel-soft);border:1px solid var(--line);transition:.25s}
    .cover{height:190px;position:relative;overflow:hidden;background:linear-gradient(135deg,#155071,#14264d 55%,#27366b)}
    .cover.tall{height:230px;background:linear-gradient(135deg,#244c66,#0a233d 55%,#263260)}
    .cover.alt{background:linear-gradient(135deg,#173e58,#18264a 50%,#164a58)}
    .cover:after{content:"";position:absolute;width:120px;height:260px;right:22%;top:-45px;transform:rotate(28deg);background:linear-gradient(90deg,transparent,rgba(113,224,255,.25),transparent)}
    .cover-label{position:absolute;z-index:1;top:14px;left:14px}.cover-icon{position:absolute;z-index:1;right:15px;bottom:14px;width:34px;height:34px;border-radius:50%;display:grid;place-items:center;background:rgba(4,17,30,.75);border:1px solid rgba(143,231,255,.55);color:#9beaff}
    .card-body{padding:17px}.card-body h3{font-size:17px}.card-body p{margin:7px 0 0;color:var(--muted);font-size:13px}
    .pagination{display:flex;justify-content:center;gap:8px;margin-top:30px}.page-btn{min-width:42px;height:42px;border-radius:13px;border:1px solid var(--line);background:rgba(13,34,56,.7);color:#a9c1d0}.page-btn:hover,.page-btn.current{background:rgba(35,199,255,.16);border-color:var(--line-strong);color:#e8fbff}
    .faq-list{max-width:900px;margin:auto;display:grid;gap:10px}.faq-item{border:1px solid var(--line);border-radius:16px;background:rgba(12,30,51,.58);overflow:hidden}.faq-q{width:100%;border:0;background:none;color:var(--text);display:flex;justify-content:space-between;text-align:left;padding:18px 21px;font-weight:700}.faq-q span:last-child{color:var(--cyan);font-size:22px;line-height:1;transition:.2s}.faq-a{max-height:0;overflow:hidden;padding:0 21px;color:var(--muted);font-size:14px;transition:max-height .24s ease,padding .24s ease}.faq-item.open .faq-a{max-height:160px;padding:0 21px 18px}.faq-item.open .faq-q span:last-child{transform:rotate(45deg)}
    .cta{padding:35px 38px;border-radius:24px;display:flex;justify-content:space-between;align-items:center;gap:30px;background:linear-gradient(110deg,rgba(18,54,81,.9),rgba(15,34,62,.78));border-color:rgba(35,199,255,.35)}
    .cta p{color:var(--muted);margin:7px 0 0;font-size:14px}.cta-actions{display:flex;gap:10px;flex-wrap:wrap}
    .footer{border-top:1px solid rgba(107,211,255,.12);padding:54px 0 25px;background:rgba(3,12,23,.35)}.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:35px}.footer-brand p{max-width:350px;color:var(--muted);font-size:13px}.footer h3{font-size:14px;margin:2px 0 14px}.footer-grid>div:not(:first-child) a{display:block;color:var(--muted);font-size:13px;margin:7px 0;transition:.2s}.footer-grid a:hover{color:#b5efff}.copyright{display:flex;justify-content:space-between;gap:20px;margin-top:38px;padding-top:20px;border-top:1px solid rgba(107,211,255,.1);color:#71899b;font-size:12px}
    @media(max-width:900px){.hero-grid{grid-template-columns:1fr}.page-hero{padding-top:48px}.visual-stage{min-height:280px}.content-grid{grid-template-columns:repeat(2,1fr)}.footer-grid{grid-template-columns:repeat(2,1fr)}}
    @media(max-width:640px){.container{width:min(100% - 32px,1240px)}.nav-shell{height:65px}.brand{font-size:14px}.brand-mark{width:31px;height:31px}.nav-links,.nav-actions .btn{display:none}.mobile-toggle{display:block;margin-left:auto}.nav-actions{margin-left:0}.search{display:none}.mobile-menu{display:flex!important}.page-hero{padding:39px 0 35px}h1{font-size:37px}.hero-copy{font-size:15px}.hero-actions .btn{width:100%}.hero-tags{gap:7px}.visual-main{width:230px;height:290px}.float-one{right:-4px;top:11px}.float-two{left:-4px;bottom:3px}.section-head{display:block}.section-head p{margin-top:12px}.feature-layout{grid-template-columns:1fr}.feature-large{min-height:245px}.content-grid{grid-template-columns:1fr}.cover,.cover.tall{height:210px}.cta{display:block;padding:27px 22px}.cta-actions{margin-top:22px}.cta-actions .btn{width:100%}.footer-grid{grid-template-columns:1fr 1fr;gap:25px}.footer-brand{grid-column:1/-1}.copyright{display:block}.copyright span{display:block;margin-top:5px}.mobile-menu{position:absolute;top:65px;left:0;right:0;padding:18px 16px;background:rgba(7,17,31,.96);border-bottom:1px solid var(--line);display:none;flex-direction:column;gap:6px}.mobile-menu a{padding:12px 14px;border-radius:12px;color:#bfd4df}.mobile-menu a:hover{background:rgba(35,199,255,.1);color:#fff}}
    @media(prefers-reduced-motion:reduce){*,*:before,*:after{scroll-behavior:auto!important;transition:none!important}}