/* roulang page: index */
:root{
      --ink:#171519;
      --surface:#211d22;
      --raised:#302833;
      --paper:#f4eee5;
      --paper-2:#eae0d3;
      --plum:#7c3e7e;
      --coral:#e67d69;
      --olive:#78806b;
      --signal:#e7af55;
      --line:rgba(244,238,229,.16);
      --line-dark:rgba(42,32,35,.13);
      --muted:#b9afb4;
      --text:#f8f1ea;
      --radius:28px;
      --shadow:0 22px 60px rgba(14,10,15,.16);
    }
    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{margin:0;font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC",Arial,sans-serif;background:var(--ink);color:var(--text);line-height:1.78;overflow-x:hidden}
    body::selection{background:var(--coral);color:#fff}
    a{color:inherit;text-decoration:none}
    button,input{font:inherit}
    button{cursor:pointer}
    img{max-width:100%;display:block}
    .site-shell{position:relative;overflow:hidden}
    .noise{position:relative}
    .noise:after{content:"";pointer-events:none;position:absolute;inset:0;opacity:.32;background-image:url("data:image/svg+xml,%3Csvg viewBox='0 0 180 180' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.85' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(/%23n)' opacity='.14'/%3E%3C/svg%3E");mix-blend-mode:screen}
    .container{width:min(1240px,calc(100% - 48px));margin:0 auto}
    .topbar{position:sticky;top:0;z-index:50;background:rgba(23,21,25,.88);backdrop-filter:blur(18px);border-bottom:1px solid var(--line)}
    .nav-main{height:72px;display:flex;align-items:center;justify-content:space-between;gap:20px}
    .brand{display:inline-flex;align-items:center;gap:10px;min-width:max-content;font-size:18px;font-weight:800;letter-spacing:.02em}
    .brand-mark{width:30px;height:30px;border-radius:10px;position:relative;display:grid;place-items:center;background:linear-gradient(135deg,var(--plum),var(--coral));box-shadow:0 8px 22px rgba(230,125,105,.22)}
    .brand-mark:before,.brand-mark:after{content:"";position:absolute;border:1px solid rgba(255,255,255,.72)}
    .brand-mark:before{width:12px;height:12px;border-radius:4px}
    .brand-mark:after{width:5px;height:5px;border-radius:2px;background:#fff}
    .searchbox{width:min(320px,33vw);display:flex;align-items:center;gap:9px;padding:9px 13px;border:1px solid var(--line);border-radius:14px;background:rgba(255,255,255,.04);color:var(--muted);transition:.25s ease}
    .searchbox:focus-within{border-color:var(--coral);box-shadow:0 0 0 3px rgba(230,125,105,.16)}
    .searchbox input{width:100%;border:0;outline:0;background:transparent;color:var(--text);font-size:13px}
    .searchbox input::placeholder{color:#91878d}
    .nav-actions{display:flex;align-items:center;gap:12px}
    .menu-btn{display:none;width:44px;height:44px;border:1px solid var(--line);background:transparent;color:#fff;border-radius:13px}
    .channel-bar{border-top:1px solid rgba(244,238,229,.08)}
    .channels{display:flex;gap:8px;align-items:center;height:52px;overflow-x:auto;scrollbar-width:none}
    .channels::-webkit-scrollbar{display:none}
    .channel{flex:none;display:inline-flex;align-items:center;gap:7px;border:1px solid transparent;padding:8px 13px;border-radius:999px;color:#c3b9be;font-size:13px;line-height:1;transition:.24s ease}
    .channel:hover{color:#fff;background:rgba(255,255,255,.06);border-color:var(--line)}
    .channel.active{color:#fff;background:linear-gradient(105deg,var(--plum),var(--coral));box-shadow:0 7px 18px rgba(124,62,126,.22)}
    .channel i{width:6px;height:6px;border-radius:50%;background:var(--signal);display:inline-block}
    .btn{min-height:44px;display:inline-flex;align-items:center;justify-content:center;gap:9px;border-radius:14px;padding:10px 17px;font-size:14px;font-weight:700;transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease,background .22s ease}
    .btn:hover{transform:translateY(-2px)}
    .btn:active{transform:translateY(0) scale(.98)}
    .btn:focus-visible,.channel:focus-visible,.faq-btn:focus-visible,a:focus-visible,input:focus-visible{outline:3px solid rgba(231,175,85,.82);outline-offset:3px}
    .btn-primary{color:#fff;background:linear-gradient(105deg,var(--plum),var(--coral));box-shadow:0 12px 26px rgba(124,62,126,.25)}
    .btn-primary:hover{box-shadow:0 17px 34px rgba(230,125,105,.24)}
    .btn-outline{border:1px solid var(--line);color:#f5ece5;background:rgba(255,255,255,.035)}
    .btn-outline:hover{background:rgba(255,255,255,.09);border-color:rgba(244,238,229,.38)}
    .hero{min-height:670px;padding:70px 0 86px;position:relative;background:radial-gradient(circle at 72% 16%,rgba(124,62,126,.44),transparent 30%),radial-gradient(circle at 88% 63%,rgba(230,125,105,.22),transparent 27%),var(--ink)}
    .hero:before{content:"";position:absolute;inset:0;background:linear-gradient(rgba(244,238,229,.04) 1px,transparent 1px),linear-gradient(90deg,rgba(244,238,229,.04) 1px,transparent 1px);background-size:44px 44px;mask-image:linear-gradient(to bottom,#000,transparent 85%)}
    .hero-grid{position:relative;display:grid;grid-template-columns:1.08fr .92fr;gap:42px;align-items:center}
    .eyebrow{display:flex;align-items:center;gap:10px;color:#e2d3d9;font-size:12px;letter-spacing:.12em;font-weight:800}
    .eyebrow span{display:inline-grid;place-items:center;width:31px;height:22px;border:1px solid rgba(231,175,85,.55);border-radius:7px;color:var(--signal);font-size:10px;letter-spacing:0}
    h1,h2,h3,p{margin-top:0}
    .hero h1{max-width:760px;margin:16px 0 19px;font-size:clamp(42px,5vw,65px);line-height:1.14;letter-spacing:-.055em;font-weight:900}
    .gradient-text{background:linear-gradient(100deg,#f1b0c2 8%,#ef9879 82%);-webkit-background-clip:text;background-clip:text;color:transparent}
    .hero-copy{max-width:650px;color:#d0c5c9;font-size:17px;line-height:1.9}
    .hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:28px}
    .hero-points{display:flex;gap:10px;flex-wrap:wrap;margin-top:30px}
    .metric{display:flex;align-items:center;gap:9px;padding:8px 12px;border:1px solid var(--line);border-radius:12px;background:rgba(255,255,255,.045);font-size:12px;color:#d8ced0}
    .metric b{color:var(--signal);font-size:13px}
    .launch-stage{min-height:450px;position:relative;border-radius:32px;border:1px solid rgba(244,238,229,.18);overflow:hidden;background:linear-gradient(145deg,#34223d 0%,#271f28 48%,#50313f 100%);box-shadow:var(--shadow)}
    .launch-stage:before{content:"";position:absolute;width:430px;height:430px;border-radius:50%;right:-120px;top:-95px;background:radial-gradient(circle,rgba(237,137,112,.7),rgba(124,62,126,.24) 39%,transparent 70%)}
    .launch-stage:after{content:"";position:absolute;inset:18px;border:1px solid rgba(255,255,255,.13);border-radius:22px;pointer-events:none}
    .stage-top{position:absolute;top:35px;left:38px;right:38px;display:flex;align-items:flex-start;justify-content:space-between;z-index:2}
    .stage-kicker{font-size:11px;letter-spacing:.14em;color:#efe2d7}
    .stage-code{font-size:11px;color:#d6a7a1}
    .count-ring{position:absolute;top:91px;left:42px;width:128px;height:128px;border-radius:50%;display:flex;flex-direction:column;align-items:center;justify-content:center;background:conic-gradient(var(--coral) 0 72%,rgba(255,255,255,.13) 72% 100%);z-index:2}
    .count-ring:before{content:"";position:absolute;inset:8px;border-radius:50%;background:#2d202d}
    .count-ring strong,.count-ring small{z-index:1}
    .count-ring strong{font-size:28px;line-height:1;color:#fff}
    .count-ring small{font-size:10px;color:#c9b7b8;margin-top:5px}
    .cover-panel{position:absolute;right:35px;bottom:34px;width:58%;min-height:282px;padding:24px;border-radius:24px;background:rgba(19,16,21,.65);border:1px solid rgba(255,255,255,.15);backdrop-filter:blur(12px);z-index:2}
    .cover-panel .line{height:1px;background:rgba(255,255,255,.15);margin:15px 0}
    .cover-label{display:flex;align-items:center;justify-content:space-between;color:#e9d8d0;font-size:11px}
    .cover-title{font-size:26px;font-weight:900;line-height:1.25;margin:17px 0 8px}
    .cover-desc{font-size:13px;color:#c9babe;line-height:1.75}
    .dots{display:flex;gap:7px;margin-top:22px}
    .dots span{display:block;width:26px;height:4px;border-radius:9px;background:rgba(255,255,255,.2)}
    .dots span.active{background:linear-gradient(90deg,var(--plum),var(--coral))}
    .stage-tag{position:absolute;right:36px;top:104px;z-index:3;padding:8px 11px;border-radius:10px;background:var(--signal);color:#3a2a18;font-weight:800;font-size:11px}
    .section{padding:100px 0;position:relative}
    .section-paper{background:var(--paper);color:#2b2527}
    .section-dark{background:var(--surface)}
    .section-head{display:flex;justify-content:space-between;align-items:flex-end;gap:30px;margin-bottom:40px}
    .section-num{font-size:12px;color:var(--coral);font-weight:900;letter-spacing:.13em}
    .section-title{margin:8px 0 0;font-size:clamp(30px,3.2vw,43px);line-height:1.18;letter-spacing:-.04em;font-weight:900}
    .section-lead{max-width:455px;margin:0;color:#766b6a;font-size:15px}
    .section-dark .section-lead{color:#bdb2b6}
    .info-layout{display:grid;grid-template-columns:1.05fr .95fr;gap:22px}
    .news-board{border-radius:var(--radius);padding:30px;background:#f9f4ed;border:1px solid var(--line-dark);box-shadow:0 16px 42px rgba(45,35,34,.08)}
    .news-row{display:grid;grid-template-columns:72px 1fr auto;gap:15px;align-items:center;padding:19px 0;border-bottom:1px solid var(--line-dark);transition:.22s ease}
    .news-row:last-child{border-bottom:0}
    .news-row:hover{padding-left:8px}
    .news-date{font-size:12px;color:#8e817f}
    .news-date b{display:block;color:var(--plum);font-size:16px}
    .news-row h3{font-size:17px;line-height:1.35;margin:0 0 4px}
    .news-row p{margin:0;font-size:13px;color:#766b6a;line-height:1.55}
    .arrow{width:34px;height:34px;display:grid;place-items:center;border-radius:11px;border:1px solid var(--line-dark);color:var(--plum);transition:.2s}
    .news-row:hover .arrow{background:var(--plum);border-color:var(--plum);color:#fff}
    .feature-news{min-height:380px;border-radius:var(--radius);overflow:hidden;position:relative;padding:29px;display:flex;flex-direction:column;justify-content:flex-end;background:linear-gradient(160deg,#614152,#241e28 61%);box-shadow:var(--shadow)}
    .feature-news:before{content:"";position:absolute;inset:0;background:radial-gradient(circle at 74% 20%,rgba(239,146,115,.65),transparent 22%),linear-gradient(135deg,transparent 42%,rgba(255,255,255,.07) 42% 43%,transparent 43%)}
    .feature-news>*{position:relative}
    .tag{display:inline-flex;align-items:center;gap:6px;width:max-content;padding:5px 9px;border-radius:999px;font-size:11px;font-weight:800;line-height:1}
    .tag-signal{background:rgba(231,175,85,.92);color:#412f1d}
    .tag-light{background:rgba(255,255,255,.13);border:1px solid rgba(255,255,255,.16);color:#eee3df}
    .feature-news h3{max-width:390px;font-size:28px;line-height:1.25;margin:15px 0 10px}
    .feature-news p{max-width:410px;margin:0;color:#d8cdd0;font-size:14px}
    .feature-news a{margin-top:18px;font-size:14px;font-weight:800;color:#fff}
    .service-grid{display:grid;grid-template-columns:1.25fr .75fr .9fr;grid-auto-rows:minmax(210px,auto);gap:18px}
    .feature-card{position:relative;overflow:hidden;border-radius:27px;padding:28px;border:1px solid var(--line);transition:.28s ease}
    .feature-card:hover{transform:translateY(-5px);border-color:rgba(240,164,145,.55);box-shadow:0 18px 42px rgba(12,10,13,.2)}
    .feature-card.dark{background:linear-gradient(140deg,#302633,#211e24)}
    .feature-card.paper{background:#f8f1e8;color:#30282a;border-color:var(--line-dark)}
    .feature-card.olive{background:linear-gradient(140deg,#78806b,#535b4b)}
    .feature-card:first-child{grid-row:span 2}
    .feature-card h3{font-size:23px;line-height:1.25;margin:20px 0 10px;font-weight:900}
    .feature-card p{font-size:14px;line-height:1.75;margin:0;max-width:390px;color:#c6bbc0}
    .feature-card.paper p{color:#706566}
    .feature-card.olive p{color:#e6e7dc}
    .card-index{font-size:11px;letter-spacing:.12em;color:var(--signal);font-weight:900}
    .symbol{margin-top:28px;width:55px;height:55px;border:1px solid rgba(255,255,255,.24);border-radius:17px;display:grid;place-items:center;font-size:22px}
    .paper .symbol{border-color:rgba(64,45,54,.18);color:var(--plum)}
    .card-link{position:absolute;right:23px;bottom:22px;width:40px;height:40px;border-radius:13px;display:grid;place-items:center;border:1px solid var(--line);font-size:19px}
    .paper .card-link{border-color:var(--line-dark)}
    .card-status{position:absolute;right:23px;top:23px}
    .path-wrap{position:relative;padding:100px 0;background:linear-gradient(180deg,#e8ddd3,#f4eee5)}
    .path-grid{display:grid;grid-template-columns:.85fr 1.15fr;gap:50px;align-items:center}
    .path-note{padding:28px;border-radius:25px;background:#2a2429;color:#f8f0e9;box-shadow:var(--shadow)}
    .path-note h3{font-size:24px;line-height:1.3;margin:14px 0 10px}
    .path-note p{font-size:14px;color:#d1c4c7;margin:0}
    .path-track{position:relative;display:grid;grid-template-columns:repeat(4,1fr);gap:14px}
    .path-track:before{content:"";height:2px;position:absolute;top:29px;left:8%;right:8%;background:linear-gradient(90deg,var(--plum),var(--coral),var(--signal))}
    .path-step{position:relative;padding-top:57px}
    .step-dot{position:absolute;top:17px;left:0;width:26px;height:26px;border-radius:9px;display:grid;place-items:center;background:#f8f2ea;border:2px solid var(--coral);color:var(--plum);font-size:10px;font-weight:900;z-index:1}
    .path-step h3{font-size:17px;line-height:1.3;margin:0 0 8px}
    .path-step p{font-size:13px;line-height:1.68;color:#756a6a;margin:0}
    .case-layout{display:grid;grid-template-columns:310px 1fr;gap:22px}
    .case-tabs{display:flex;flex-direction:column;gap:9px}
    .case-tab{padding:17px 18px;border-radius:16px;border:1px solid var(--line);background:transparent;color:#c8bdc2;text-align:left;transition:.24s}
    .case-tab:hover,.case-tab.active{background:rgba(255,255,255,.08);border-color:rgba(230,125,105,.48);color:#fff}
    .case-tab b{display:block;font-size:14px;margin-bottom:3px}
    .case-tab span{font-size:12px;color:#a79ba0}
    .case-showcase{min-height:395px;position:relative;overflow:hidden;border:1px solid var(--line);border-radius:30px;padding:34px;background:linear-gradient(125deg,#3d2b41,#201d24 60%,#4f343b);box-shadow:var(--shadow)}
    .case-showcase:before{content:"";position:absolute;width:390px;height:390px;border-radius:50%;right:-80px;bottom:-150px;background:radial-gradient(circle,rgba(230,125,105,.57),rgba(124,62,126,.14) 55%,transparent 70%)}
    .case-showcase>*{position:relative}
    .case-meta{display:flex;gap:9px;align-items:center;flex-wrap:wrap}
    .case-showcase h3{font-size:34px;line-height:1.18;margin:22px 0 13px;max-width:560px}
    .case-showcase p{max-width:550px;color:#cec2c7;font-size:15px;margin:0}
    .case-footer{position:absolute;left:34px;right:34px;bottom:30px;display:flex;justify-content:space-between;align-items:center;gap:16px}
    .case-badges{display:flex;gap:8px;flex-wrap:wrap}
    .pricing-intro{padding-bottom:25px}
    .pricing-grid{display:grid;grid-template-columns:1fr 1.08fr .94fr;gap:18px;align-items:end}
    .price-card{min-height:440px;display:flex;flex-direction:column;padding:29px;border-radius:28px;border:1px solid var(--line-dark);background:#f9f4ec;color:#2b2527;box-shadow:0 16px 38px rgba(42,31,31,.09)}
    .price-card.featured{min-height:474px;transform:translateY(-18px);background:linear-gradient(150deg,#34263a,#211e25);border-color:rgba(230,125,105,.45);color:#fff;box-shadow:var(--shadow)}
    .price-card h3{font-size:24px;margin:17px 0 6px;line-height:1.25}
    .price-card p{font-size:13px;margin:0;color:#766b6b}
    .price-card.featured p{color:#cbbec2}
    .price{margin:28px 0 23px;font-size:30px;font-weight:900;line-height:1.1}
    .price small{font-size:13px;font-weight:500;color:#847878}
    .price-card.featured .price small{color:#b9aab1}
    .benefits{padding:17px 0;margin:0 0 25px;border-top:1px solid var(--line-dark);border-bottom:1px solid var(--line-dark);list-style:none}
    .featured .benefits{border-color:var(--line)}
    .benefits li{position:relative;padding:7px 0 7px 21px;font-size:13px}
    .benefits li:before{content:"";position:absolute;left:1px;top:15px;width:8px;height:8px;border-radius:2px;background:var(--signal)}
    .price-card .btn{margin-top:auto}
    .faq-grid{display:grid;grid-template-columns:.75fr 1.25fr;gap:70px}
    .faq-side{position:sticky;top:150px;height:max-content}
    .faq-side p{color:#b8adb1;font-size:15px;max-width:330px}
    .faq-list{border-top:1px solid var(--line)}
    .faq-item{border-bottom:1px solid var(--line)}
    .faq-btn{width:100%;padding:20px 0;display:flex;align-items:center;justify-content:space-between;gap:18px;background:transparent;border:0;color:#f6eeea;text-align:left;font-weight:800;font-size:16px}
    .faq-icon{width:28px;height:28px;border-radius:9px;border:1px solid var(--line);display:grid;place-items:center;flex:none;font-size:18px;transition:.24s}
    .faq-item.open .faq-icon{transform:rotate(45deg);background:var(--coral);border-color:var(--coral)}
    .faq-answer{display:none;padding:0 42px 21px 0;color:#c2b7bb;font-size:14px;line-height:1.85}
    .faq-item.open .faq-answer{display:block}
    .final-cta{padding:0 0 100px;background:var(--surface)}
    .cta-panel{position:relative;overflow:hidden;padding:48px 54px;border-radius:31px;border:1px solid var(--line);background:linear-gradient(110deg,#302438,#43283e 52%,#703f49);display:flex;align-items:center;justify-content:space-between;gap:30px}
    .cta-panel:before{content:"";position:absolute;width:580px;height:240px;right:-140px;top:-130px;border-radius:50%;background:radial-gradient(ellipse,rgba(237,139,108,.78),transparent 65%)}
    .cta-panel>*{position:relative}
    .cta-panel h2{font-size:clamp(28px,3.4vw,42px);line-height:1.18;margin:10px 0}
    .cta-panel p{margin:0;color:#d7c7cc;font-size:14px}
    footer{background:#151317;padding:57px 0 28px;border-top:1px solid var(--line)}
    .footer-grid{display:grid;grid-template-columns:1.5fr repeat(3,.8fr);gap:30px;padding-bottom:40px}
    .footer-brand p{max-width:330px;color:#a99ea3;font-size:13px;margin:15px 0 0}
    .footer-title{font-size:12px;color:#e9d9d7;letter-spacing:.1em;font-weight:900;margin-bottom:13px}
    .footer-links{display:flex;flex-direction:column;gap:8px}
    .footer-links a{color:#a99ea3;font-size:13px;transition:.2s}
    .footer-links a:hover{color:var(--coral);padding-left:3px}
    .copyright{padding-top:18px;border-top:1px solid var(--line);display:flex;justify-content:space-between;gap:15px;color:#81777d;font-size:12px}
    @media(max-width:1024px){
      .hero-grid,.info-layout,.path-grid,.faq-grid{grid-template-columns:1fr}
      .hero{padding-top:55px}.launch-stage{min-height:420px}
      .service-grid{grid-template-columns:1.15fr .85fr}.feature-card:first-child{grid-row:span 1;grid-column:span 2}
      .case-layout{grid-template-columns:1fr}.case-tabs{flex-direction:row;overflow-x:auto}.case-tab{flex:1;min-width:190px}
      .faq-side{position:static}.pricing-grid{grid-template-columns:repeat(3,1fr)}.price-card{padding:23px}
    }
    @media(max-width:768px){
      .container{width:min(100% - 32px,1240px)}.nav-main{height:64px}.searchbox,.nav-actions .btn{display:none}.menu-btn{display:grid;place-items:center}
      .channels{height:48px}.hero{min-height:auto;padding:48px 0 66px}.hero h1{font-size:42px}.hero-copy{font-size:15px}.launch-stage{min-height:380px}
      .cover-panel{left:24px;right:24px;bottom:23px;width:auto;min-height:auto}.count-ring{left:27px;top:80px;width:104px;height:104px}.stage-top{left:27px;right:27px}
      .section,.path-wrap{padding:68px 0}.section-head{display:block;margin-bottom:28px}.section-lead{margin-top:15px}.service-grid{grid-template-columns:1fr}.feature-card:first-child{grid-column:auto}.path-track{grid-template-columns:1fr 1fr}.path-track:before{left:13px;top:28px;bottom:20px;width:2px;height:auto;background:linear-gradient(var(--plum),var(--coral),var(--signal)}.path-step{padding-top:55px;padding-left:0}.path-step:nth-child(even){margin-top:28px}
      .pricing-grid{grid-template-columns:1fr}.price-card.featured{transform:none}.case-showcase{min-height:430px}.case-showcase h3{font-size:27px}.case-footer{position:absolute;flex-direction:column;align-items:flex-start}
      .footer-grid{grid-template-columns:1fr 1fr}.footer-brand{grid-column:span 2}.cta-panel{padding:36px 28px;display:block}.cta-panel .btn{margin-top:22px}.faq-grid{gap:30px}
    }
    @media(max-width:520px){
      .brand{font-size:15px}.brand-mark{width:27px;height:27px}.hero h1{font-size:36px}.hero-actions .btn{width:100%}.hero-points{gap:7px}.metric{font-size:11px}
      .launch-stage{min-height:360px}.cover-title{font-size:21px}.cover-panel{padding:19px}.stage-tag{right:24px;top:95px}.news-row{grid-template-columns:52px 1fr}.news-row .arrow{display:none}.news-row h3{font-size:15px}
      .path-track{grid-template-columns:1fr}.path-step:nth-child(even){margin-top:0}.path-step{padding-left:42px}.step-dot{left:0}.section-title{font-size:31px}.case-showcase{padding:25px}.case-footer{left:25px;right:25px;bottom:24px}.footer-grid{grid-template-columns:1fr}.footer-brand{grid-column:auto}.copyright{display:block}.copyright span+span{display:block;margin-top:5px}
    }

/* roulang page: category1 */
:root{
--ink:#171519;--surface:#211d22;--raised:#302833;--paper:#f4eee5;--paper-2:#eae0d3;
--plum:#7c3e7e;--coral:#e67d69;--olive:#78806b;--signal:#e7af55;
--line:rgba(244,238,229,.16);--line-dark:rgba(42,32,35,.13);--muted:#b9afb4;--text:#f8f1ea;
--radius:28px;--shadow:0 22px 60px rgba(14,10,15,.16)
}
*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC",Arial,sans-serif;background:var(--ink);color:var(--text);line-height:1.78;overflow-x:hidden}body::selection{background:var(--coral);color:#fff}a{color:inherit;text-decoration:none}button,input{font:inherit}button{cursor:pointer}img{max-width:100%;display:block}.container{width:min(1240px,calc(100% - 48px));margin:0 auto}
.topbar{position:sticky;top:0;z-index:50;background:rgba(23,21,25,.9);backdrop-filter:blur(18px);border-bottom:1px solid var(--line)}.nav-main{height:72px;display:flex;align-items:center;justify-content:space-between;gap:20px}.brand{display:inline-flex;align-items:center;gap:10px;min-width:max-content;font-size:18px;font-weight:800;letter-spacing:.02em}.brand-mark{width:30px;height:30px;border-radius:10px;position:relative;background:linear-gradient(135deg,var(--plum),var(--coral));box-shadow:0 8px 22px rgba(230,125,105,.22)}.brand-mark:before,.brand-mark:after{content:"";position:absolute;border:1px solid rgba(255,255,255,.72)}.brand-mark:before{width:12px;height:12px;border-radius:4px;left:8px;top:8px}.brand-mark:after{width:5px;height:5px;border-radius:2px;background:#fff;left:12px;top:12px}.searchbox{width:min(320px,33vw);display:flex;align-items:center;gap:9px;padding:9px 13px;border:1px solid var(--line);border-radius:14px;background:rgba(255,255,255,.04);color:var(--muted);transition:.25s ease}.searchbox:focus-within{border-color:var(--coral);box-shadow:0 0 0 3px rgba(230,125,105,.16)}.searchbox input{width:100%;border:0;outline:0;background:transparent;color:var(--text);font-size:13px}.searchbox input::placeholder{color:#91878d}.nav-actions{display:flex;align-items:center;gap:12px}.btn{min-height:44px;display:inline-flex;align-items:center;justify-content:center;gap:9px;border-radius:14px;padding:10px 17px;font-size:14px;font-weight:700;transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease,background .22s ease}.btn:hover{transform:translateY(-2px)}.btn:active{transform:translateY(0) scale(.98)}.btn-primary{color:#fff;background:linear-gradient(105deg,var(--plum),var(--coral));box-shadow:0 12px 26px rgba(124,62,126,.25)}.btn-primary:hover{box-shadow:0 17px 34px rgba(230,125,105,.24)}.btn-outline{border:1px solid var(--line);color:#f5ece5;background:rgba(255,255,255,.035)}.btn-outline:hover{background:rgba(255,255,255,.09);border-color:rgba(244,238,229,.38)}.btn:focus-visible,.channel:focus-visible,.faq-btn:focus-visible,a:focus-visible,input:focus-visible,.filter:focus-visible{outline:3px solid rgba(231,175,85,.82);outline-offset:3px}.menu-btn{display:none;width:44px;height:44px;border:1px solid var(--line);background:transparent;color:#fff;border-radius:13px}.channel-bar{border-top:1px solid rgba(255,255,255,.05);background:rgba(32,28,33,.72)}.channels{display:flex;align-items:center;gap:8px;min-height:51px;overflow-x:auto;scrollbar-width:none}.channels::-webkit-scrollbar{display:none}.channel{position:relative;display:inline-flex;align-items:center;gap:8px;min-height:38px;padding:0 14px;border-radius:12px;color:#bdb2b6;font-size:13px;font-weight:700;white-space:nowrap;transition:.22s}.channel i{width:6px;height:6px;border-radius:50%;background:#686168}.channel:hover{background:rgba(255,255,255,.06);color:#fff}.channel.active{background:linear-gradient(105deg,rgba(124,62,126,.95),rgba(230,125,105,.88));color:#fff}.channel.active i{background:var(--signal)}
.page-hero{position:relative;padding:72px 0 62px;overflow:hidden;background:radial-gradient(circle at 83% 18%,rgba(124,62,126,.55),transparent 28%),radial-gradient(circle at 72% 75%,rgba(230,125,105,.21),transparent 24%),var(--ink)}.page-hero:before{content:"";position:absolute;inset:0;opacity:.38;background-image:linear-gradient(rgba(244,238,229,.07) 1px,transparent 1px),linear-gradient(90deg,rgba(244,238,229,.07) 1px,transparent 1px);background-size:38px 38px;mask-image:linear-gradient(to bottom,#000,transparent)}.hero-grid{position:relative;display:grid;grid-template-columns:1.08fr .92fr;gap:42px;align-items:center}.eyebrow{display:flex;align-items:center;gap:10px;color:#e2d3d9;font-size:12px;letter-spacing:.12em;font-weight:800}.eyebrow span{display:inline-grid;place-items:center;width:31px;height:22px;border:1px solid rgba(231,175,85,.55);border-radius:7px;color:var(--signal);font-size:10px;letter-spacing:0}.page-hero h1{margin:16px 0 18px;font-size:clamp(39px,4.8vw,61px);line-height:1.15;letter-spacing:-.055em;font-weight:900}.hero-copy{max-width:650px;color:#d0c5c9;font-size:17px;line-height:1.9}.hero-points{display:flex;gap:10px;flex-wrap:wrap;margin-top:27px}.badge{display:inline-flex;align-items:center;gap:7px;border:1px solid rgba(231,175,85,.38);border-radius:999px;padding:6px 10px;background:rgba(231,175,85,.09);color:#f5d49a;font-size:12px;font-weight:800}.badge:before{content:"";width:6px;height:6px;border-radius:99px;background:var(--signal)}.channel-panel{position:relative;min-height:330px;padding:27px;border:1px solid rgba(244,238,229,.18);border-radius:32px;overflow:hidden;background:linear-gradient(145deg,#3b2841,#272028 58%,#573440);box-shadow:var(--shadow)}.channel-panel:before{content:"";position:absolute;right:-58px;bottom:-90px;width:280px;height:280px;border:1px solid rgba(244,238,229,.18);border-radius:50%;box-shadow:0 0 0 24px rgba(244,238,229,.04),0 0 0 48px rgba(244,238,229,.03)}.panel-label{position:relative;display:flex;justify-content:space-between;font-size:11px;letter-spacing:.12em;color:#eadbd3}.panel-title{position:relative;margin:56px 0 20px;font-size:29px;font-weight:900;line-height:1.25}.panel-list{position:relative;display:grid;gap:9px}.panel-row{display:flex;align-items:center;justify-content:space-between;padding:10px 12px;border:1px solid rgba(255,255,255,.13);border-radius:12px;background:rgba(18,14,19,.25);font-size:13px}.panel-row em{font-style:normal;color:#f2bf6b;font-size:11px}.panel-float{position:absolute;right:24px;bottom:24px;padding:8px 12px;border-radius:10px;background:var(--signal);color:#382819;font-size:11px;font-weight:900}
.section{padding:96px 0}.section-paper{background:var(--paper);color:#2b2527}.section-dark{background:var(--surface)}.section-num{color:var(--coral);font-size:12px;letter-spacing:.13em;font-weight:900}.section-title{margin:8px 0 0;font-size:clamp(30px,3.5vw,43px);line-height:1.2;letter-spacing:-.04em;font-weight:900}.section-lead{max-width:600px;color:#766b6a;font-size:15px}.content-layout{display:grid;grid-template-columns:300px minmax(0,1fr);gap:32px;align-items:start}.rail{position:sticky;top:142px;border:1px solid var(--line-dark);border-radius:24px;padding:22px;background:#fbf6ef;box-shadow:0 14px 35px rgba(53,38,40,.07)}.rail h2{margin:0 0 7px;font-size:19px;line-height:1.35}.rail p{margin:0 0 17px;font-size:13px;line-height:1.65;color:#766b6a}.filter-list{display:grid;gap:8px}.filter{width:100%;display:flex;align-items:center;justify-content:space-between;border:1px solid #dfd3c8;border-radius:13px;padding:10px 12px;background:transparent;color:#3b3234;font-size:13px;font-weight:700;text-align:left;transition:.2s}.filter span{color:#8f7e7c;font-size:11px}.filter:hover,.filter.active{border-color:transparent;background:linear-gradient(105deg,var(--plum),var(--coral));color:#fff}.filter.active span{color:#ffdfcb}.rail-note{margin-top:18px;padding-top:16px;border-top:1px solid var(--line-dark);color:#8a7f7c;font-size:12px}.masonry{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:20px}.topic-card{position:relative;overflow:hidden;border-radius:26px;border:1px solid rgba(244,238,229,.14);background:var(--raised);padding:25px;min-height:245px;transition:transform .24s ease,border-color .24s ease,box-shadow .24s ease}.topic-card:hover{transform:translateY(-5px);border-color:rgba(230,125,105,.66);box-shadow:0 22px 46px rgba(18,13,19,.22)}.topic-card.featured{grid-column:span 2;min-height:284px;background:linear-gradient(120deg,#392b41,#2c252e 56%,#67404a)}.topic-card.paper{background:#fcf7f0;border-color:#dfd3c8;color:#30292b}.topic-card.olive{background:#69705f;color:#fff}.card-top{display:flex;align-items:center;justify-content:space-between;gap:10px;font-size:11px;letter-spacing:.1em;color:#d7c8d0}.paper .card-top{color:#776c68}.card-tag{padding:4px 8px;border:1px solid currentColor;border-radius:8px;font-size:10px;font-weight:800;letter-spacing:.08em}.topic-card h3{max-width:440px;margin:29px 0 10px;font-size:clamp(20px,2.2vw,29px);line-height:1.26;font-weight:900}.topic-card p{max-width:510px;margin:0;color:#cbbfc5;font-size:14px;line-height:1.8}.paper p{color:#6f6463}.card-bottom{position:absolute;left:25px;right:25px;bottom:22px;display:flex;align-items:center;justify-content:space-between}.mini-badge{padding:5px 9px;border-radius:999px;background:rgba(231,175,85,.16);color:#ffd995;font-size:11px;font-weight:800}.paper .mini-badge{background:#f6e6c4;color:#825b23}.card-arrow{display:grid;place-items:center;width:37px;height:37px;border:1px solid currentColor;border-radius:12px;font-size:18px;transition:.2s}.topic-card:hover .card-arrow{transform:rotate(-10deg);background:rgba(255,255,255,.1)}
.path-grid{display:grid;grid-template-columns:.82fr 1.18fr;gap:36px;align-items:center}.path-card{border-radius:28px;padding:30px;background:var(--surface);color:#fff;border:1px solid var(--line)}.path-card h2{margin:9px 0 12px;font-size:32px;line-height:1.2;font-weight:900}.path-card p{color:#c6bbc0;margin:0}.path-list{display:grid;gap:0}.path-item{display:grid;grid-template-columns:56px 1fr auto;align-items:center;gap:16px;padding:19px 0;border-bottom:1px solid var(--line-dark)}.path-item:last-child{border-bottom:0}.path-number{font-size:13px;font-weight:900;color:var(--coral)}.path-item strong{display:block;font-size:16px}.path-item small{display:block;color:#786d6a;font-size:13px}.path-item b{font-size:18px;color:var(--plum)}
.faq-layout{display:grid;grid-template-columns:.72fr 1.28fr;gap:58px;align-items:start}.faq-intro p{color:#766b6a}.faq-list{border-top:1px solid var(--line-dark)}.faq-item{border-bottom:1px solid var(--line-dark)}.faq-btn{width:100%;display:flex;justify-content:space-between;gap:20px;align-items:center;border:0;background:transparent;padding:21px 0;color:#2d2729;text-align:left;font-size:16px;font-weight:800}.faq-icon{width:28px;height:28px;display:grid;place-items:center;border:1px solid #cfc0b5;border-radius:9px;transition:.25s;flex:0 0 auto}.faq-item.open .faq-icon{transform:rotate(45deg);background:var(--plum);border-color:var(--plum);color:#fff}.faq-answer{display:none;padding:0 45px 21px 0;color:#716663;font-size:14px}.faq-item.open .faq-answer{display:block}
.cta{padding:0 0 95px;background:var(--paper);color:#2b2527}.cta-box{position:relative;overflow:hidden;border-radius:30px;padding:49px 52px;background:linear-gradient(110deg,#2d2330,#51313e 58%,#86475d);color:#fff;box-shadow:var(--shadow)}.cta-box:after{content:"";position:absolute;width:390px;height:390px;right:-110px;top:-190px;border-radius:50%;background:radial-gradient(circle,rgba(230,125,105,.72),transparent 65%)}.cta-box>*{position:relative;z-index:1}.cta-box h2{max-width:650px;margin:10px 0 12px;font-size:clamp(29px,4vw,45px);line-height:1.18;font-weight:900}.cta-box p{max-width:560px;margin:0 0 24px;color:#ddd1d4}.cta-box .btn-outline{background:rgba(255,255,255,.08)}
footer{padding:58px 0 22px;background:#171519;color:#d5c9ce;border-top:1px solid var(--line)}.footer-grid{display:grid;grid-template-columns:1.7fr 1fr 1fr 1fr;gap:34px}.footer-brand p{max-width:330px;color:#aa9fa5;font-size:13px}.footer-title{margin-bottom:13px;color:#f8f1ea;font-size:13px;font-weight:900}.footer-links{display:grid;gap:8px}.footer-links a{color:#a99ea4;font-size:13px;transition:.2s}.footer-links a:hover{color:#f1b0a5;padding-left:3px}.copyright{display:flex;justify-content:space-between;gap:20px;margin-top:43px;padding-top:19px;border-top:1px solid var(--line);color:#81767c;font-size:12px}
@media(max-width:1024px){.hero-grid,.path-grid,.faq-layout{grid-template-columns:1fr}.channel-panel{min-height:275px}.content-layout{grid-template-columns:240px minmax(0,1fr)}.footer-grid{grid-template-columns:1.5fr 1fr 1fr}.footer-grid>div:last-child{grid-column:span 2}}@media(max-width:768px){.container{width:min(100% - 32px,1240px)}.nav-main{height:64px}.searchbox{display:none}.nav-actions .btn{display:none}.menu-btn{display:block}.page-hero{padding:54px 0 48px}.page-hero h1{font-size:42px}.content-layout{display:block}.rail{position:relative;top:auto;margin-bottom:20px;padding:16px}.filter-list{display:flex;overflow-x:auto;gap:8px;padding-bottom:2px}.filter{min-width:max-content;width:auto}.rail-note{display:none}.masonry{gap:14px}.section{padding:68px 0}.topic-card{padding:21px;min-height:235px}.topic-card.featured{min-height:270px}.card-bottom{left:21px;right:21px}.faq-layout{gap:20px}.cta{padding-bottom:68px}.cta-box{padding:35px 27px}.footer-grid{grid-template-columns:1fr 1fr;gap:30px}.footer-brand{grid-column:span 2}.footer-grid>div:last-child{grid-column:auto}}@media(max-width:520px){.brand{font-size:15px}.brand-mark{width:27px;height:27px}.channels{width:100%;padding-left:16px;padding-right:16px}.page-hero h1{font-size:36px}.hero-copy{font-size:15px}.channel-panel{padding:21px;min-height:290px}.panel-title{margin-top:43px;font-size:25px}.masonry{grid-template-columns:1fr}.topic-card.featured{grid-column:auto}.topic-card h3{font-size:22px}.path-item{grid-template-columns:38px 1fr auto;gap:9px}.cta-box{padding:30px 22px}.footer-grid{grid-template-columns:1fr}.footer-brand{grid-column:auto}.copyright{display:block}.copyright span{display:block;margin-top:5px}}

/* roulang page: category2 */
:root{
 --ink:#171519;--surface:#211d22;--raised:#302833;--paper:#f4eee5;--paper-2:#eae0d3;
 --plum:#7c3e7e;--coral:#e67d69;--olive:#78806b;--signal:#e7af55;
 --line:rgba(244,238,229,.16);--line-dark:rgba(42,32,35,.13);--muted:#b9afb4;
 --text:#f8f1ea;--radius:28px;--shadow:0 22px 60px rgba(14,10,15,.16)
}
*{box-sizing:border-box} html{scroll-behavior:smooth} body{margin:0;font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC",Arial,sans-serif;background:var(--ink);color:var(--text);line-height:1.78;overflow-x:hidden}
body::selection{background:var(--coral);color:#fff} a{color:inherit;text-decoration:none} button,input{font:inherit} button{cursor:pointer} img{max-width:100%;display:block}
.container{width:min(1240px,calc(100% - 48px));margin:0 auto}.topbar{position:sticky;top:0;z-index:50;background:rgba(23,21,25,.9);backdrop-filter:blur(18px);border-bottom:1px solid var(--line)}
.nav-main{height:72px;display:flex;align-items:center;justify-content:space-between;gap:20px}.brand{display:inline-flex;align-items:center;gap:10px;min-width:max-content;font-size:18px;font-weight:800;letter-spacing:.02em}.brand-mark{width:30px;height:30px;border-radius:10px;position:relative;background:linear-gradient(135deg,var(--plum),var(--coral));box-shadow:0 8px 22px rgba(230,125,105,.22)}.brand-mark:before,.brand-mark:after{content:"";position:absolute;border:1px solid rgba(255,255,255,.72)}.brand-mark:before{width:12px;height:12px;left:8px;top:8px;border-radius:4px}.brand-mark:after{width:5px;height:5px;left:12px;top:12px;border-radius:2px;background:#fff}
.searchbox{width:min(320px,33vw);display:flex;align-items:center;gap:9px;padding:9px 13px;border:1px solid var(--line);border-radius:14px;background:rgba(255,255,255,.04);color:var(--muted);transition:.25s ease}.searchbox:focus-within{border-color:var(--coral);box-shadow:0 0 0 3px rgba(230,125,105,.16)}.searchbox input{width:100%;border:0;outline:0;background:transparent;color:var(--text);font-size:13px}.searchbox input::placeholder{color:#91878d}.nav-actions{display:flex;align-items:center;gap:12px}.menu-btn{display:none;width:44px;height:44px;border:1px solid var(--line);background:transparent;color:#fff;border-radius:13px}
.btn{min-height:44px;display:inline-flex;align-items:center;justify-content:center;gap:9px;border-radius:14px;padding:10px 17px;font-size:14px;font-weight:700;transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease,background .22s ease}.btn:hover{transform:translateY(-2px)}.btn:active{transform:translateY(0) scale(.98)}.btn:focus-visible,.channel:focus-visible,.faq-btn:focus-visible,a:focus-visible,input:focus-visible{outline:3px solid rgba(231,175,85,.82);outline-offset:3px}.btn-primary{color:#fff;background:linear-gradient(105deg,var(--plum),var(--coral));box-shadow:0 12px 26px rgba(124,62,126,.25)}.btn-primary:hover{box-shadow:0 17px 34px rgba(230,125,105,.24)}.btn-outline{border:1px solid var(--line);color:#f5ece5;background:rgba(255,255,255,.035)}.btn-outline:hover{background:rgba(255,255,255,.09);border-color:rgba(244,238,229,.38)}
.channel-bar{border-top:1px solid rgba(244,238,229,.08);background:rgba(20,18,21,.54)}.channels{display:flex;align-items:center;gap:8px;min-height:51px;overflow:auto;scrollbar-width:none}.channels::-webkit-scrollbar{display:none}.channel{display:inline-flex;align-items:center;gap:8px;min-height:34px;padding:6px 13px;border-radius:10px;color:#bcb0b7;white-space:nowrap;font-size:13px;font-weight:700;transition:.22s}.channel i{width:6px;height:6px;border-radius:50%;background:#70646c}.channel:hover{color:#fff;background:rgba(255,255,255,.06)}.channel.active{color:#fff;background:linear-gradient(105deg,rgba(124,62,126,.88),rgba(230,125,105,.85));box-shadow:0 7px 18px rgba(124,62,126,.16)}.channel.active i{background:var(--signal)}
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