/* roulang page: index */
:root{
      --ink:#111311;
      --coal:#191b19;
      --deep:#0c0e0d;
      --paper:#f5f2eb;
      --paper-2:#ebe6dc;
      --white:#fffdf7;
      --muted:#77766e;
      --muted-dark:#b8b6aa;
      --line:#d8d2c6;
      --line-dark:rgba(255,255,255,.18);
      --copper:#c89a61;
      --copper-light:#e4bd82;
      --neon:#d7f06c;
      --radius:14px;
      --shadow:0 18px 45px rgba(26,23,16,.10);
      --ease:all .28s ease;
    }
    *,*:before,*:after{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{margin:0;background:var(--paper);color:var(--ink);font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans CJK SC",sans-serif;font-size:16px;line-height:1.85}
    body:has(.bottom-bar){padding-bottom:78px}
    a{color:inherit;text-decoration:none}
    img{display:block;width:100%;height:auto}
    button,input,textarea{font:inherit}
    button{cursor:pointer}
    p{margin:0 0 1.2rem}
    h1,h2,h3,h4{margin:0;color:inherit;line-height:1.25;font-weight:650;letter-spacing:-.035em}
    ul{margin:0;padding:0;list-style:none}
    .container{width:min(1240px,calc(100% - 48px));margin:0 auto}
    .eyebrow{display:inline-flex;align-items:center;gap:10px;color:var(--copper);font-size:12px;letter-spacing:.16em;text-transform:uppercase;font-weight:700}
    .eyebrow:before{content:"";width:28px;height:1px;background:currentColor}
    .section{padding:112px 0}
    .section-head{display:flex;justify-content:space-between;align-items:end;gap:30px;margin-bottom:48px}
    .section-head h2{font-size:clamp(32px,4vw,54px);max-width:620px}
    .section-head p{max-width:440px;color:var(--muted);margin:0}
    .header{position:sticky;top:0;z-index:50;background:rgba(12,14,13,.96);box-shadow:0 8px 22px rgba(0,0,0,.16)}
    .header:after{content:"";display:block;height:2px;background:linear-gradient(90deg,var(--neon),var(--copper),var(--neon))}
    .topbar{min-height:78px;display:flex;align-items:center;gap:42px}
    .logo{display:inline-flex;align-items:center;gap:11px;color:var(--white);font-size:24px;font-weight:750;white-space:nowrap;letter-spacing:-.08em}
    .logo-mark{display:inline-block;width:27px;height:27px;border:1px solid var(--neon);transform:rotate(45deg);position:relative}
    .logo-mark:after{content:"";position:absolute;width:9px;height:9px;background:var(--copper);right:4px;bottom:4px}
    .main-nav{display:flex;align-items:center;gap:25px;margin-left:auto}
    .main-nav a{position:relative;color:#bdbdb4;font-size:14px;white-space:nowrap;padding:26px 0;transition:var(--ease)}
    .main-nav a:hover,.main-nav a:focus,.main-nav a.active{color:var(--white)}
    .main-nav a.active:after,.main-nav a:hover:after{content:"";position:absolute;left:0;right:0;bottom:16px;height:2px;background:var(--neon);box-shadow:0 0 9px var(--neon)}
    .nav-cta{border:1px solid var(--copper)!important;color:var(--copper-light)!important;padding:9px 17px!important;border-radius:4px}
    .nav-cta:hover{background:var(--copper);color:var(--deep)!important}
    .menu-toggle{display:none;border:1px solid var(--line-dark);background:transparent;color:var(--white);padding:8px 12px;border-radius:5px}
    .hero{min-height:650px;position:relative;display:flex;align-items:center;overflow:hidden;background:var(--deep) url("/assets/images/backpic/back-1.webp") center/cover no-repeat;color:var(--white)}
    .hero:before{content:"";position:absolute;inset:0;background:linear-gradient(90deg,rgba(9,11,10,.94) 0%,rgba(9,11,10,.78) 42%,rgba(9,11,10,.2) 100%)}
    .hero-inner{position:relative;z-index:1;width:100%;padding:100px 0}
    .hero-copy{width:min(720px,100%)}
    .hero h1{font-size:clamp(38px,5.7vw,76px);margin:20px 0 24px;max-width:760px}
    .hero h1 em{display:block;color:var(--copper-light);font-style:normal}
    .hero-intro{color:#e2e0d7;font-size:18px;line-height:1.9;max-width:680px}
    .hero-actions{display:flex;flex-wrap:wrap;gap:13px;margin-top:34px}
    .button{display:inline-flex;align-items:center;justify-content:center;min-height:48px;padding:11px 22px;border-radius:4px;border:1px solid transparent;font-size:14px;font-weight:700;transition:var(--ease)}
    .button:focus-visible,.menu-toggle:focus-visible,.faq-question:focus-visible,input:focus-visible,textarea:focus-visible{outline:3px solid var(--neon);outline-offset:3px}
    .button.primary{background:var(--neon);color:var(--deep)}
    .button.primary:hover{background:#efffa9;transform:translateY(-2px);box-shadow:0 8px 20px rgba(215,240,108,.2)}
    .button.secondary{border-color:rgba(255,255,255,.4);color:var(--white);background:transparent}
    .button.secondary:hover{border-color:var(--copper-light);color:var(--copper-light)}
    .hero-note{display:flex;gap:28px;margin-top:48px;padding-top:20px;border-top:1px solid rgba(255,255,255,.23);color:var(--muted-dark);font-size:13px}
    .hero-note strong{display:block;color:var(--white);font-size:20px;line-height:1.2}
    .hero-selector{position:absolute;right:0;bottom:0;width:270px;background:rgba(17,19,17,.92);border:1px solid rgba(215,240,108,.45);padding:24px}
    .hero-selector .tag{color:var(--neon);font-size:11px;letter-spacing:.12em}
    .hero-selector h3{font-size:21px;margin:12px 0 9px}
    .hero-selector p{font-size:13px;line-height:1.65;color:var(--muted-dark);margin-bottom:18px}
    .hero-selector a{font-size:13px;color:var(--copper-light)}
    .intro-section{background:var(--paper-2)}
    .intro-grid{display:grid;grid-template-columns:1fr 1.55fr;gap:70px;align-items:start}
    .intro-grid h2{font-size:clamp(34px,4vw,55px)}
    .intro-text{columns:2;column-gap:42px;color:#4d4b45}
    .intro-text p{break-inside:avoid;font-size:16px}
    .feature-strip{background:var(--coal);color:var(--white);padding:76px 0}
    .feature-grid{display:grid;grid-template-columns:1.05fr 1.35fr .9fr;gap:0;border-top:1px solid var(--line-dark);border-bottom:1px solid var(--line-dark)}
    .feature{padding:30px 30px 34px 0;border-right:1px solid var(--line-dark);margin-right:30px}
    .feature:last-child{border:0;margin:0}
    .feature-number{font-size:12px;color:var(--neon);letter-spacing:.15em}
    .feature h3{font-size:25px;margin:20px 0 12px;color:var(--white)}
    .feature p{color:var(--muted-dark);font-size:14px;line-height:1.75}
    .feature img{height:105px;object-fit:cover;margin-top:12px;border-radius:7px;filter:saturate(.75)}
    .category-section{background:var(--paper)}
    .category-grid{display:grid;grid-template-columns:1.25fr .9fr .9fr;gap:18px}
    .category-card{position:relative;min-height:260px;padding:27px;display:flex;flex-direction:column;justify-content:end;overflow:hidden;border-radius:var(--radius);color:var(--white);background:var(--coal)}
    .category-card.large{grid-row:span 2;min-height:538px}
    .category-card:before{content:"";position:absolute;inset:0;background:linear-gradient(0deg,rgba(0,0,0,.8),rgba(0,0,0,.05) 75%)}
    .category-card img{position:absolute;inset:0;height:100%;object-fit:cover;transition:transform .6s ease}
    .category-card:hover img{transform:scale(1.025)}
    .category-card > *:not(img){position:relative;z-index:1}
    .category-card .small-label{font-size:11px;color:var(--copper-light);letter-spacing:.12em;margin-bottom:8px}
    .category-card h3{font-size:25px;margin-bottom:5px}
    .category-card p{font-size:13px;color:#dedbd1;margin:0;max-width:330px;line-height:1.65}
    .resource-section{background:#f0ece4}
    .resource-layout{display:grid;grid-template-columns:1.55fr .8fr;gap:70px}
    .resource-list{border-top:1px solid var(--line)}
    .resource-item{display:grid;grid-template-columns:85px 1fr 120px;gap:20px;align-items:center;border-bottom:1px solid var(--line);padding:22px 0;transition:var(--ease)}
    .resource-item:hover{padding-left:10px;background:rgba(255,255,255,.35)}
    .resource-item img{width:85px;height:78px;object-fit:cover;border-radius:6px}
    .resource-item .label{font-size:11px;color:#9a7042;letter-spacing:.08em}
    .resource-item h3{font-size:19px;margin:5px 0}
    .resource-item p{font-size:13px;color:var(--muted);line-height:1.6;margin:0}
    .resource-item .read{font-size:13px;color:#8a633b;text-align:right}
    .side-note{background:var(--deep);color:var(--white);padding:34px;border-radius:var(--radius);align-self:start}
    .side-note h3{font-size:29px;margin:17px 0}
    .side-note p{color:var(--muted-dark);font-size:14px}
    .side-note ul{border-top:1px solid var(--line-dark);margin-top:24px}
    .side-note li{padding:13px 0;border-bottom:1px solid var(--line-dark);font-size:13px;color:#dedbd1}
    .side-note li:before{content:"→";color:var(--neon);margin-right:10px}
    .news-section{background:var(--paper)}
    .news-layout{display:grid;grid-template-columns:1.15fr .85fr;gap:62px}
    .news-lead{display:grid;grid-template-columns:1fr 1fr;gap:25px;align-items:center}
    .news-lead img{height:300px;object-fit:cover;border-radius:10px}
    .news-lead h3{font-size:30px;margin:15px 0}
    .news-lead p{font-size:15px;color:var(--muted)}
    .news-link{display:inline-block;color:#986d3c;font-size:14px;font-weight:700}
    .news-feed{border-top:1px solid var(--line)}
    .news-row{display:flex;justify-content:space-between;gap:20px;padding:19px 0;border-bottom:1px solid var(--line);font-size:14px}
    .news-row span{color:var(--muted);font-size:12px;white-space:nowrap}
    .news-row a{transition:var(--ease)}
    .news-row a:hover{color:#986d3c;padding-left:5px}
    .timeline-section{background:var(--coal);color:var(--white)}
    .timeline-grid{display:grid;grid-template-columns:1fr 1.4fr;gap:100px}
    .timeline-grid h2{font-size:clamp(32px,4vw,52px)}
    .timeline-grid .lead{color:var(--muted-dark);margin-top:20px}
    .timeline{border-left:1px solid var(--copper);padding-left:32px}
    .timeline-item{position:relative;padding:0 0 35px}
    .timeline-item:before{content:"";position:absolute;width:9px;height:9px;border:2px solid var(--neon);background:var(--coal);border-radius:50%;left:-38px;top:9px}
    .timeline-item strong{font-size:13px;color:var(--copper-light);letter-spacing:.08em}
    .timeline-item h3{font-size:21px;margin:9px 0}
    .timeline-item p{color:var(--muted-dark);font-size:14px;line-height:1.8}
    .brand-section{background:var(--paper-2)}
    .brand-copy{max-width:850px;font-size:17px;color:#4e4b44;line-height:2}
    .brand-copy p{margin-bottom:20px}
    .brand-details{display:grid;grid-template-columns:repeat(4,1fr);gap:0;margin-top:45px;border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
    .detail{padding:23px 22px 23px 0;border-right:1px solid var(--line);margin-right:22px}
    .detail:last-child{border:0;margin:0}
    .detail b{display:block;font-size:26px;color:#9b7040;margin-bottom:7px}
    .detail span{font-size:13px;color:var(--muted)}
    .faq-section{background:var(--paper)}
    .faq-wrap{max-width:910px}
    .faq-item{border-top:1px solid var(--line)}
    .faq-item:last-child{border-bottom:1px solid var(--line)}
    .faq-question{width:100%;border:0;background:transparent;text-align:left;padding:22px 40px 22px 0;position:relative;font-size:18px;font-weight:650;color:var(--ink)}
    .faq-question:after{content:"+";position:absolute;right:6px;top:18px;font-size:25px;font-weight:300;color:#a37948}
    .faq-question[aria-expanded="true"]:after{content:"−"}
    .faq-answer{display:none;color:var(--muted);font-size:15px;line-height:1.9;padding:0 55px 23px 0}
    .faq-answer.open{display:block}
    .download-section{background:var(--deep);color:var(--white);padding:85px 0}
    .download-grid{display:grid;grid-template-columns:1fr 1fr;gap:70px;align-items:center}
    .download-grid h2{font-size:clamp(32px,4vw,52px);margin:18px 0}
    .download-grid p{color:var(--muted-dark);max-width:580px}
    .download-panel{border:1px solid var(--line-dark);padding:30px;border-radius:var(--radius);background:rgba(255,255,255,.03)}
    .download-panel h3{font-size:23px;margin-bottom:12px}
    .download-panel ul{color:#d8d5cb;font-size:14px;margin:18px 0 25px}
    .download-panel li{padding:7px 0;border-bottom:1px solid var(--line-dark)}
    .download-panel li:before{content:"•";color:var(--neon);margin-right:10px}
    .contact-section{background:var(--paper-2)}
    .contact-grid{display:grid;grid-template-columns:.9fr 1.1fr;gap:70px}
    .contact-grid h2{font-size:clamp(32px,4vw,48px);margin:17px 0}
    .contact-grid p{color:var(--muted);max-width:470px}
    .form-box{background:var(--white);padding:32px;border-radius:var(--radius);box-shadow:var(--shadow)}
    label{display:block;font-size:13px;font-weight:700;margin-bottom:7px}
    input,textarea{width:100%;border:1px solid #cfc8bb;background:#fcfaf5;border-radius:5px;padding:12px 13px;margin-bottom:17px;color:var(--ink);transition:var(--ease)}
    input::placeholder,textarea::placeholder{color:#aaa69c}
    input:focus,textarea:focus{border-color:#a97c48;box-shadow:0 0 0 3px rgba(200,154,97,.15);background:#fff}
    textarea{min-height:120px;resize:vertical}
    .form-message{display:none;color:#6b7f32;font-size:14px;margin-top:13px}
    .form-message.show{display:block}
    .bottom-bar{position:fixed;z-index:60;bottom:0;left:0;right:0;min-height:70px;background:rgba(12,14,13,.97);border-top:1px solid var(--neon);color:var(--white);display:flex;align-items:center}
    .bottom-inner{display:flex;align-items:center;justify-content:space-between;gap:24px}
    .bottom-bar p{margin:0;color:#dedbd1;font-size:14px}
    .bottom-bar p span{color:var(--neon);margin-right:12px}
    .footer{background:var(--deep);color:var(--white);padding:72px 0 100px}
    .footer-top{display:flex;justify-content:space-between;gap:40px;padding-bottom:45px;border-bottom:1px solid var(--line-dark)}
    .footer-brand p{color:var(--muted-dark);font-size:13px;max-width:250px;margin-top:18px}
    .footer-nav{display:grid;grid-template-columns:repeat(3,1fr);gap:60px}
    .footer-nav h4{font-size:13px;color:var(--copper-light);margin-bottom:16px}
    .footer-nav a{display:block;color:#c1c0b7;font-size:13px;margin:8px 0;transition:var(--ease)}
    .footer-nav a:hover{color:var(--neon)}
    .footer-bottom{display:flex;justify-content:space-between;gap:30px;padding-top:25px;color:#8e9088;font-size:12px}
    .footer-bottom a{color:#c9c6ba}
    @media(max-width:1024px){
      .main-nav{gap:14px}.main-nav a{font-size:13px}
      .hero-selector{right:24px}.intro-grid,.timeline-grid,.download-grid,.contact-grid{gap:42px}
      .section{padding:85px 0}
    }
    @media(max-width:767px){
      body:has(.bottom-bar){padding-bottom:112px}
      .container{width:min(100% - 32px,600px)}
      .topbar{min-height:68px;justify-content:space-between}.menu-toggle{display:block}
      .main-nav{display:none;position:absolute;top:68px;left:0;right:0;background:var(--deep);padding:10px 16px 20px;flex-direction:column;align-items:stretch;gap:0;border-bottom:1px solid var(--line-dark)}
      .main-nav.is-open{display:flex}.main-nav a{padding:13px 5px;border-bottom:1px solid var(--line-dark)}
      .main-nav a.active:after,.main-nav a:hover:after{bottom:0}.nav-cta{text-align:center;margin-top:10px}
      .hero{min-height:720px;align-items:flex-start}.hero-inner{padding:74px 0}.hero h1{font-size:42px}.hero-intro{font-size:16px}
      .hero-note{gap:18px;margin-top:32px}.hero-selector{position:relative;right:auto;bottom:auto;width:100%;margin-top:42px}
      .section{padding:68px 0}.section-head{display:block;margin-bottom:30px}.section-head p{margin-top:17px}
      .intro-grid,.resource-layout,.news-layout,.timeline-grid,.download-grid,.contact-grid{grid-template-columns:1fr;gap:35px}
      .intro-text{columns:1}.feature-grid{grid-template-columns:1fr}.feature{border-right:0;border-bottom:1px solid var(--line-dark);margin:0;padding:24px 0}.feature:last-child{border-bottom:0}
      .category-grid{grid-template-columns:1fr}.category-card.large{grid-row:auto;min-height:380px}.category-card{min-height:230px}
      .resource-item{grid-template-columns:64px 1fr}.resource-item img{width:64px;height:62px}.resource-item .read{display:none}
      .news-lead{grid-template-columns:1fr}.news-lead img{height:230px}
      .brand-details{grid-template-columns:1fr 1fr}.detail:nth-child(2){border-right:0;margin:0}.detail{margin-right:16px;padding:18px 12px 18px 0}
      .footer-top,.footer-bottom{display:block}.footer-nav{grid-template-columns:repeat(2,1fr);gap:25px;margin-top:35px}
      .footer-bottom p{margin-top:12px}.bottom-bar{min-height:102px;padding:12px 0}.bottom-inner{align-items:stretch;flex-direction:column;gap:9px}.bottom-bar .button{width:100%;min-height:42px}
    }
    @media(prefers-reduced-motion:reduce){*,*:before,*:after{scroll-behavior:auto!important;transition:none!important}}

/* roulang page: category2 */
:root{
      --ink:#111311;
      --coal:#191b19;
      --deep:#0c0e0d;
      --paper:#f5f2eb;
      --paper-2:#ebe6dc;
      --white:#fffdf7;
      --muted:#77766e;
      --muted-dark:#b8b6aa;
      --line:#d8d2c6;
      --line-dark:rgba(255,255,255,.18);
      --copper:#c89a61;
      --copper-light:#e4bd82;
      --neon:#d7f06c;
      --rose:#9e6e5c;
      --radius:14px;
      --shadow:0 18px 45px rgba(26,23,16,.10);
      --ease:all .28s ease;
    }

    html{scroll-behavior:smooth}
    *,*:before,*:after{box-sizing:border-box}
    body{
      margin:0;
      padding-bottom:78px;
      background:var(--paper);
      color:var(--ink);
      font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans CJK SC",sans-serif;
      font-size:16px;
      line-height:1.85;
    }
    h1,h2,h3,h4,p{margin-top:0}
    h1,h2,h3,h4{line-height:1.22;letter-spacing:-.045em}
    a{color:inherit;text-decoration:none}
    img{display:block;width:100%;height:auto}
    button,input,textarea{font:inherit}
    button{cursor:pointer}
    .container{width:min(1240px,calc(100% - 48px));margin:0 auto}
    .eyebrow{
      display:inline-flex;
      align-items:center;
      gap:10px;
      color:var(--copper);
      font-size:12px;
      letter-spacing:.16em;
      font-weight:700;
    }
    .eyebrow:before{content:"";width:28px;height:1px;background:currentColor}
    .section{padding:108px 0}
    .section-head{
      display:flex;
      justify-content:space-between;
      align-items:end;
      gap:30px;
      margin-bottom:48px;
    }
    .section-head h2{font-size:clamp(32px,4vw,54px);max-width:650px;margin-bottom:0}
    .section-head p{max-width:440px;color:var(--muted);margin-bottom:0}
    .header{
      position:sticky;
      top:0;
      z-index:50;
      background:rgba(12,14,13,.97);
      box-shadow:0 8px 22px rgba(0,0,0,.16);
    }
    .header:after{
      content:"";
      display:block;
      height:2px;
      background:linear-gradient(90deg,var(--neon),var(--copper),var(--neon));
    }
    .topbar{min-height:78px;display:flex;align-items:center;gap:42px}
    .logo{
      display:inline-flex;
      align-items:center;
      gap:11px;
      color:var(--white);
      font-size:24px;
      font-weight:750;
      white-space:nowrap;
      letter-spacing:-.08em;
    }
    .logo-mark{
      display:inline-block;
      width:27px;
      height:27px;
      border:1px solid var(--neon);
      transform:rotate(45deg);
      position:relative;
    }
    .logo-mark:after{
      content:"";
      position:absolute;
      width:9px;
      height:9px;
      background:var(--copper);
      right:4px;
      bottom:4px;
    }
    .main-nav{
      display:flex;
      align-items:center;
      gap:25px;
      margin-left:auto;
    }
    .main-nav a{
      position:relative;
      color:#bdbdb4;
      font-size:14px;
      white-space:nowrap;
      padding:26px 0;
      transition:var(--ease);
    }
    .main-nav a:hover,.main-nav a:focus,.main-nav a.active{color:var(--white)}
    .main-nav a.active:after,.main-nav a:hover:after{
      content:"";
      position:absolute;
      left:0;
      right:0;
      bottom:16px;
      height:2px;
      background:var(--neon);
      box-shadow:0 0 9px var(--neon);
    }
    .nav-cta{
      border:1px solid var(--copper)!important;
      color:var(--copper-light)!important;
      padding:9px 17px!important;
      border-radius:4px;
    }
    .nav-cta:hover{background:var(--copper);color:var(--deep)!important}
    .menu-toggle{
      display:none;
      border:1px solid var(--line-dark);
      background:transparent;
      color:var(--white);
      padding:8px 12px;
      min-height:44px;
      border-radius:5px;
    }

    .category-hero{
      position:relative;
      min-height:640px;
      display:flex;
      align-items:flex-end;
      overflow:hidden;
      color:var(--white);
      background:var(--deep) url("/assets/images/backpic/back-2.webp") center/cover no-repeat;
    }
    .category-hero:before{
      content:"";
      position:absolute;
      inset:0;
      background:linear-gradient(180deg,rgba(7,9,8,.25),rgba(7,9,8,.9) 82%);
    }
    .category-hero-inner{
      position:relative;
      z-index:1;
      width:100%;
      padding:94px 0 58px;
    }
    .hero-kicker{
      display:flex;
      justify-content:space-between;
      align-items:center;
      gap:20px;
      border-top:1px solid rgba(255,255,255,.35);
      padding-top:17px;
      color:var(--muted-dark);
      font-size:13px;
    }
    .hero-kicker strong{color:var(--neon);font-weight:600}
    .category-hero h1{
      max-width:850px;
      font-size:clamp(43px,7vw,88px);
      margin:22px 0 22px;
    }
    .category-hero h1 em{display:block;color:var(--copper-light);font-style:normal}
    .hero-summary{
      max-width:680px;
      color:#e2e0d7;
      font-size:18px;
      line-height:1.9;
      margin-bottom:32px;
    }
    .hero-actions{display:flex;flex-wrap:wrap;gap:13px}
    .button{
      display:inline-flex;
      align-items:center;
      justify-content:center;
      min-height:48px;
      padding:11px 22px;
      border-radius:4px;
      border:1px solid transparent;
      font-size:14px;
      font-weight:700;
      transition:var(--ease);
    }
    .button:focus-visible,.menu-toggle:focus-visible,.faq-question:focus-visible,
    input:focus-visible,textarea:focus-visible{
      outline:3px solid var(--neon);
      outline-offset:3px;
    }
    .button.primary{background:var(--neon);color:var(--deep)}
    .button.primary:hover{
      background:#efffa9;
      transform:translateY(-2px);
      box-shadow:0 8px 20px rgba(215,240,108,.2);
    }
    .button.secondary{border-color:rgba(255,255,255,.4);color:var(--white);background:transparent}
    .button.secondary:hover{border-color:var(--copper-light);color:var(--copper-light)}
    .countdown-strip{
      position:relative;
      z-index:2;
      background:var(--coal);
      color:var(--white);
      border-bottom:1px solid var(--line-dark);
    }
    .countdown-inner{
      min-height:76px;
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:24px;
    }
    .countdown-copy{display:flex;align-items:center;gap:18px}
    .countdown-copy .mark{width:8px;height:8px;background:var(--neon);box-shadow:0 0 12px var(--neon)}
    .countdown-copy strong{font-size:15px}
    .countdown-copy span{color:var(--muted-dark);font-size:13px}
    .timer{display:flex;align-items:center;gap:9px;color:var(--copper-light);font-variant-numeric:tabular-nums}
    .timer b{font-size:21px;color:var(--white);font-weight:600}
    .timer small{font-size:11px;color:var(--muted-dark)}
    .strip-actions{display:flex;gap:10px}
    .strip-actions .button{min-height:40px;padding:8px 16px;font-size:13px}
    .button.dark-outline{border-color:rgba(255,255,255,.25);color:var(--white)}
    .button.dark-outline:hover{border-color:var(--neon);color:var(--neon)}

    .intro-section{background:var(--paper-2)}
    .intro-grid{
      display:grid;
      grid-template-columns:.82fr 1.45fr;
      gap:85px;
      align-items:start;
    }
    .intro-grid h2{font-size:clamp(34px,4vw,55px);margin:18px 0 0}
    .intro-copy p{max-width:730px;color:#4f5049;margin-bottom:22px}
    .intro-copy p:last-child{margin-bottom:0}
    .note-line{
      margin-top:32px;
      padding:17px 0 0 18px;
      border-left:2px solid var(--copper);
      color:var(--muted);
      font-size:14px;
    }

    .timeline-section{background:var(--paper)}
    .timeline{
      position:relative;
      max-width:1000px;
      margin:0 auto;
    }
    .timeline:before{
      content:"";
      position:absolute;
      left:116px;
      top:0;
      bottom:0;
      width:1px;
      background:var(--line);
    }
    .timeline-item{
      position:relative;
      display:grid;
      grid-template-columns:170px 1fr 170px;
      gap:34px;
      align-items:start;
      padding:34px 0;
      border-top:1px solid var(--line);
    }
    .timeline-item:last-child{border-bottom:1px solid var(--line)}
    .timeline-index{
      color:var(--copper);
      font-size:13px;
      letter-spacing:.12em;
      font-weight:700;
    }
    .timeline-index:after{
      content:"";
      position:absolute;
      left:111px;
      top:42px;
      width:11px;
      height:11px;
      border:2px solid var(--paper);
      background:var(--neon);
      box-shadow:0 0 0 1px var(--copper);
      transform:rotate(45deg);
    }
    .timeline-item h3{font-size:27px;margin:0 0 10px}
    .timeline-item p{color:var(--muted);font-size:15px;line-height:1.8;margin:0}
    .timeline-meta{text-align:right;color:var(--muted);font-size:13px;padding-top:4px}
    .timeline-meta span{
      display:block;
      color:var(--ink);
      font-weight:700;
      margin-bottom:5px;
    }
    .text-link{
      display:inline-flex;
      align-items:center;
      gap:9px;
      color:var(--rose);
      font-size:13px;
      font-weight:700;
      margin-top:15px;
      transition:var(--ease);
    }
    .text-link:after{content:"↗";color:var(--copper)}
    .text-link:hover{color:var(--ink);gap:13px}

    .material-section{background:var(--coal);color:var(--white)}
    .material-grid{
      display:grid;
      grid-template-columns:1.05fr .95fr;
      gap:70px;
      align-items:center;
    }
    .material-image{
      position:relative;
      min-height:520px;
      overflow:hidden;
      border-radius:var(--radius);
    }
    .material-image img{height:520px;object-fit:cover;transition:transform .6s ease}
    .material-image:hover img{transform:scale(1.02)}
    .material-image:after{
      content:"开云 · 材质观察";
      position:absolute;
      left:22px;
      bottom:20px;
      color:var(--white);
      font-size:12px;
      letter-spacing:.12em;
      text-shadow:0 2px 10px #000;
    }
    .material-copy h2{font-size:clamp(32px,4vw,52px);margin:18px 0 22px}
    .material-copy p{color:var(--muted-dark);max-width:530px}
    .material-list{margin:31px 0 0;padding:0;list-style:none;border-top:1px solid var(--line-dark)}
    .material-list li{
      display:flex;
      justify-content:space-between;
      gap:20px;
      padding:18px 0;
      border-bottom:1px solid var(--line-dark);
      color:#e0ddd2;
      font-size:15px;
    }
    .material-list span{color:var(--copper-light);font-size:13px}

    .voices-section{background:var(--paper-2)}
    .voices-layout{
      display:grid;
      grid-template-columns:1fr 1.25fr;
      gap:80px;
      align-items:start;
    }
    .quote-block{
      border-top:2px solid var(--copper);
      padding-top:24px;
    }
    .quote-block p{
      font-size:clamp(23px,3vw,37px);
      line-height:1.48;
      letter-spacing:-.04em;
      margin-bottom:24px;
    }
    .quote-block small{color:var(--muted)}
    .voice-cards{display:grid;grid-template-columns:1fr 1fr;gap:14px}
    .voice-card{
      background:var(--paper);
      border:1px solid var(--line);
      border-radius:10px;
      padding:25px;
      transition:var(--ease);
    }
    .voice-card:hover{border-color:var(--copper);transform:translateY(-3px);box-shadow:var(--shadow)}
    .voice-card:nth-child(2){margin-top:42px}
    .voice-card .label{color:var(--copper);font-size:11px;letter-spacing:.14em;font-weight:700}
    .voice-card h3{font-size:20px;margin:15px 0 9px}
    .voice-card p{font-size:14px;color:var(--muted);margin:0;line-height:1.75}

    .faq-section{background:var(--paper)}
    .faq-wrap{max-width:900px;margin:0 auto}
    .faq-item{border-top:1px solid var(--line)}
    .faq-item:last-child{border-bottom:1px solid var(--line)}
    .faq-question{
      width:100%;
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:25px;
      padding:23px 0;
      border:0;
      background:transparent;
      color:var(--ink);
      text-align:left;
      font-weight:700;
      font-size:17px;
    }
    .faq-question:after{content:"+";color:var(--copper);font-size:25px;font-weight:400;transition:var(--ease)}
    .faq-question[aria-expanded="true"]:after{content:"−";color:var(--rose)}
    .faq-answer{display:none;padding:0 50px 23px 0;color:var(--muted);font-size:15px}
    .faq-answer.is-open{display:block}

    .cta-section{background:var(--paper-2);padding:84px 0}
    .cta-panel{
      display:flex;
      justify-content:space-between;
      align-items:center;
      gap:35px;
      padding:42px 48px;
      background:var(--deep);
      color:var(--white);
      border-radius:var(--radius);
      border:1px solid rgba(215,240,108,.25);
    }
    .cta-panel h2{font-size:clamp(28px,4vw,46px);margin:15px 0 10px}
    .cta-panel p{color:var(--muted-dark);margin:0;max-width:600px}

    .bottom-bar{
      position:fixed;
      left:0;
      right:0;
      bottom:0;
      z-index:40;
      min-height:72px;
      background:rgba(12,14,13,.97);
      color:var(--white);
      border-top:1px solid var(--neon);
      box-shadow:0 -8px 25px rgba(0,0,0,.18);
      padding-bottom:env(safe-area-inset-bottom);
    }
    .bottom-inner{
      min-height:72px;
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:20px;
    }
    .bottom-label{display:flex;align-items:center;gap:12px;font-size:14px}
    .bottom-label i{display:block;width:7px;height:7px;background:var(--neon);box-shadow:0 0 9px var(--neon)}
    .bottom-inner .button{min-height:42px;padding:8px 18px}

    .footer{background:var(--deep);color:var(--white);padding:72px 0 28px}
    .footer-top{
      display:flex;
      justify-content:space-between;
      gap:70px;
      padding-bottom:58px;
      border-bottom:1px solid var(--line-dark);
    }
    .footer-brand{max-width:330px}
    .footer-brand p{color:var(--muted-dark);font-size:14px;margin-top:20px}
    .footer-nav{display:grid;grid-template-columns:repeat(3,minmax(130px,1fr));gap:45px}
    .footer-nav h4{font-size:13px;color:var(--copper-light);margin-bottom:17px}
    .footer-nav a{
      display:block;
      color:var(--muted-dark);
      font-size:13px;
      margin:9px 0;
      transition:var(--ease);
    }
    .footer-nav a:hover{color:var(--neon);padding-left:3px}
    .footer-bottom{
      display:flex;
      justify-content:space-between;
      gap:25px;
      padding-top:23px;
      color:#898a82;
      font-size:12px;
      line-height:2;
    }
    .footer-bottom a{color:var(--copper-light)}
    .footer-bottom a:hover{color:var(--neon)}

    @media (max-width:1024px){
      .topbar{gap:22px}
      .main-nav{gap:17px}
      .main-nav a{font-size:13px}
      .intro-grid,.material-grid,.voices-layout{gap:45px}
      .timeline-item{grid-template-columns:145px 1fr 130px}
      .timeline:before{left:96px}
      .timeline-index:after{left:91px}
    }
    @media (max-width:768px){
      .container{width:min(100% - 36px,620px)}
      .topbar{min-height:68px}
      .menu-toggle{display:block;margin-left:auto}
      .main-nav{
        display:none;
        position:absolute;
        left:18px;
        right:18px;
        top:76px;
        flex-direction:column;
        align-items:stretch;
        gap:0;
        padding:8px 18px 18px;
        background:var(--coal);
        border:1px solid var(--line-dark);
        box-shadow:0 18px 35px rgba(0,0,0,.3);
      }
      .main-nav.is-open{display:flex}
      .main-nav a{padding:13px 0;border-bottom:1px solid var(--line-dark)}
      .main-nav a:last-child{border-bottom:0}
      .main-nav a.active:after,.main-nav a:hover:after{bottom:7px}
      .nav-cta{margin-top:9px;text-align:center}
      .category-hero{min-height:600px}
      .category-hero-inner{padding:78px 0 40px}
      .hero-kicker{align-items:flex-start;flex-direction:column;gap:8px}
      .hero-summary{font-size:16px}
      .countdown-inner{padding:16px 0;align-items:flex-start;flex-direction:column;gap:14px}
      .strip-actions{width:100%}
      .strip-actions .button{flex:1}
      .section{padding:76px 0}
      .section-head{display:block;margin-bottom:32px}
      .section-head p{margin-top:18px}
      .intro-grid,.material-grid,.voices-layout{grid-template-columns:1fr;gap:30px}
      .timeline:before{left:6px}
      .timeline-item{display:block;padding:28px 0 28px 33px}
      .timeline-index{margin-bottom:13px}
      .timeline-index:after{left:1px;top:37px}
      .timeline-meta{text-align:left;margin-top:15px}
      .material-image,.material-image img{min-height:360px;height:360px}
      .voice-cards{grid-template-columns:1fr}
      .voice-card:nth-child(2){margin-top:0}
      .cta-panel{display:block;padding:32px 26px}
      .cta-panel .button{margin-top:25px}
      .footer-top{display:block;padding-bottom:34px}
      .footer-nav{margin-top:38px;gap:18px}
      .footer-bottom{display:block}
      .footer-bottom>div+div{margin-top:10px}
      .bottom-inner{min-height:66px}
      .bottom-label{font-size:13px}
      .bottom-inner .button{padding:8px 14px;font-size:13px}
    }
    @media (max-width:520px){
      body{font-size:15px}
      .container{width:calc(100% - 30px)}
      .logo{font-size:22px}
      .category-hero h1{font-size:42px}
      .hero-actions{display:grid;grid-template-columns:1fr}
      .hero-actions .button{width:100%}
      .timer{gap:6px}
      .timer b{font-size:18px}
      .strip-actions{display:grid;grid-template-columns:1fr 1fr}
      .material-image,.material-image img{height:300px;min-height:300px}
      .footer-nav{grid-template-columns:1fr 1fr}
      .footer-nav>div:last-child{grid-column:1/-1}
      .bottom-label span{max-width:145px;line-height:1.4}
      .bottom-inner .button{min-width:102px}
    }
    @media (prefers-reduced-motion:reduce){
      html{scroll-behavior:auto}
      *,*:before,*:after{transition:none!important;animation:none!important}
    }

/* roulang page: category1 */
:root{
      --ink:#111311;
      --coal:#191b19;
      --deep:#0c0e0d;
      --paper:#f5f2eb;
      --paper-2:#ebe6dc;
      --white:#fffdf7;
      --muted:#77766e;
      --muted-dark:#b8b6aa;
      --line:#d8d2c6;
      --line-dark:rgba(255,255,255,.18);
      --copper:#c89a61;
      --copper-light:#e4bd82;
      --neon:#d7f06c;
      --rose:#b78272;
      --radius:14px;
      --shadow:0 18px 45px rgba(26,23,16,.10);
      --ease:all .28s ease;
    }

    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{
      margin:0;
      padding-bottom:78px;
      background:var(--paper);
      color:var(--ink);
      font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans CJK SC",sans-serif;
      font-size:16px;
      line-height:1.85;
      overflow-x:hidden;
    }
    h1,h2,h3,h4,p{margin-top:0}
    h1,h2,h3,h4{font-weight:700;line-height:1.25;letter-spacing:-.045em}
    a{color:inherit;text-decoration:none}
    img{display:block;width:100%;height:auto}
    button,input,textarea{font:inherit}
    button{cursor:pointer}
    .container{width:min(1240px,calc(100% - 48px));margin:0 auto}
    .eyebrow{
      display:inline-flex;
      align-items:center;
      gap:10px;
      color:var(--copper);
      font-size:12px;
      letter-spacing:.16em;
      font-weight:700;
    }
    .eyebrow:before{
      content:"";
      width:28px;
      height:1px;
      background:currentColor;
    }
    .section{padding:112px 0}
    .section-head{
      display:flex;
      justify-content:space-between;
      align-items:end;
      gap:35px;
      margin-bottom:48px;
    }
    .section-head h2{
      max-width:650px;
      margin:15px 0 0;
      font-size:clamp(32px,4vw,54px);
    }
    .section-head p{
      max-width:455px;
      color:var(--muted);
      margin:0;
    }
    .header{
      position:sticky;
      top:0;
      z-index:50;
      background:rgba(12,14,13,.97);
      box-shadow:0 8px 22px rgba(0,0,0,.16);
    }
    .header:after{
      content:"";
      display:block;
      height:2px;
      background:linear-gradient(90deg,var(--neon),var(--copper),var(--neon));
    }
    .topbar{
      min-height:78px;
      display:flex;
      align-items:center;
      gap:42px;
    }
    .logo{
      display:inline-flex;
      align-items:center;
      gap:11px;
      color:var(--white);
      font-size:24px;
      font-weight:750;
      white-space:nowrap;
      letter-spacing:-.08em;
    }
    .logo-mark{
      display:inline-block;
      width:27px;
      height:27px;
      border:1px solid var(--neon);
      transform:rotate(45deg);
      position:relative;
    }
    .logo-mark:after{
      content:"";
      position:absolute;
      width:9px;
      height:9px;
      background:var(--copper);
      right:4px;
      bottom:4px;
    }
    .main-nav{
      display:flex;
      align-items:center;
      gap:25px;
      margin-left:auto;
    }
    .main-nav a{
      position:relative;
      color:#bdbdb4;
      font-size:14px;
      white-space:nowrap;
      padding:26px 0;
      transition:var(--ease);
    }
    .main-nav a:hover,
    .main-nav a:focus,
    .main-nav a.active{
      color:var(--white);
    }
    .main-nav a.active:after,
    .main-nav a:hover:after{
      content:"";
      position:absolute;
      left:0;
      right:0;
      bottom:16px;
      height:2px;
      background:var(--neon);
      box-shadow:0 0 9px var(--neon);
    }
    .main-nav .nav-cta{
      border:1px solid var(--copper)!important;
      color:var(--copper-light)!important;
      padding:9px 17px!important;
      border-radius:4px;
    }
    .main-nav .nav-cta:hover{
      background:var(--copper);
      color:var(--deep)!important;
    }
    .menu-toggle{
      display:none;
      border:1px solid var(--line-dark);
      background:transparent;
      color:var(--white);
      padding:8px 12px;
      border-radius:5px;
      min-width:48px;
      min-height:44px;
    }
    .menu-toggle:hover{border-color:var(--neon);color:var(--neon)}
    .button{
      display:inline-flex;
      align-items:center;
      justify-content:center;
      min-height:48px;
      padding:11px 22px;
      border-radius:4px;
      border:1px solid transparent;
      font-size:14px;
      font-weight:700;
      transition:var(--ease);
    }
    .button:focus-visible,
    .menu-toggle:focus-visible,
    .faq-question:focus-visible,
    input:focus-visible,
    textarea:focus-visible{
      outline:3px solid var(--neon);
      outline-offset:3px;
    }
    .button.primary{background:var(--neon);color:var(--deep)}
    .button.primary:hover{
      background:#efffa9;
      transform:translateY(-2px);
      box-shadow:0 8px 20px rgba(215,240,108,.2);
    }
    .button.secondary{
      border-color:rgba(255,255,255,.4);
      color:var(--white);
      background:transparent;
    }
    .button.secondary:hover{border-color:var(--copper-light);color:var(--copper-light)}
    .button.ink{
      background:var(--ink);
      color:var(--white);
    }
    .button.ink:hover{background:var(--copper);color:var(--deep)}
    .button.line{
      min-height:auto;
      padding:0 0 5px;
      border:0;
      border-bottom:1px solid var(--copper);
      border-radius:0;
      color:var(--ink);
    }
    .button.line:hover{color:var(--copper);border-color:var(--neon)}

    .category-hero{
      position:relative;
      min-height:620px;
      display:flex;
      align-items:center;
      overflow:hidden;
      background:var(--deep);
      color:var(--white);
    }
    .category-hero:before{
      content:"";
      position:absolute;
      inset:0;
      background:linear-gradient(90deg,rgba(9,11,10,.92),rgba(9,11,10,.68) 43%,rgba(9,11,10,.23));
      z-index:1;
    }
    .category-hero .hero-image{
      position:absolute;
      right:7%;
      top:8%;
      width:34%;
      height:84%;
      object-fit:cover;
      z-index:0;
      filter:saturate(.78) contrast(1.04);
      border-radius:2px;
    }
    .category-hero .hero-image:after{content:""}
    .hero-inner{
      position:relative;
      z-index:2;
      width:100%;
      padding:100px 0;
    }
    .hero-copy{width:min(690px,100%)}
    .hero h1{
      font-size:clamp(42px,6vw,76px);
      margin:20px 0 23px;
      max-width:700px;
    }
    .hero h1 em{
      display:block;
      color:var(--copper-light);
      font-style:normal;
    }
    .hero-intro{
      color:#e2e0d7;
      font-size:18px;
      line-height:1.9;
      max-width:640px;
      margin-bottom:0;
    }
    .hero-actions{
      display:flex;
      flex-wrap:wrap;
      gap:13px;
      margin-top:34px;
    }
    .hero-note{
      display:flex;
      gap:34px;
      margin-top:50px;
      padding-top:20px;
      border-top:1px solid rgba(255,255,255,.23);
      color:var(--muted-dark);
      font-size:13px;
    }
    .hero-note strong{
      display:block;
      color:var(--white);
      font-size:20px;
      line-height:1.2;
    }
    .hero-index{
      position:absolute;
      right:0;
      bottom:45px;
      z-index:2;
      color:var(--neon);
      font-size:12px;
      letter-spacing:.15em;
      writing-mode:vertical-rl;
    }

    .intro-section{background:var(--paper-2)}
    .intro-grid{
      display:grid;
      grid-template-columns:1fr 1.55fr;
      gap:70px;
      align-items:start;
    }
    .intro-grid h2{font-size:clamp(34px,4vw,55px);margin:14px 0 0}
    .intro-copy p{color:#4f4d46;max-width:690px}
    .intro-copy p + p{margin-top:19px}
    .editorial-line{
      display:flex;
      align-items:center;
      gap:17px;
      margin-top:29px;
      color:var(--copper);
      font-size:13px;
    }
    .editorial-line:before{
      content:"";
      width:66px;
      height:1px;
      background:var(--copper);
    }

    .feature-strip{
      background:var(--coal);
      color:var(--white);
      padding:76px 0;
    }
    .feature-grid{
      display:grid;
      grid-template-columns:1.05fr 1.35fr .9fr;
      gap:0;
      border-top:1px solid var(--line-dark);
      border-bottom:1px solid var(--line-dark);
    }
    .feature{
      padding:30px 30px 34px 0;
      border-right:1px solid var(--line-dark);
      margin-right:30px;
    }
    .feature:last-child{border:0;margin:0}
    .feature-number{
      color:var(--neon);
      font-size:12px;
      letter-spacing:.15em;
    }
    .feature h3{
      font-size:25px;
      margin:20px 0 12px;
      color:var(--white);
    }
    .feature p{
      color:var(--muted-dark);
      font-size:14px;
      line-height:1.75;
      margin-bottom:0;
    }
    .feature img{
      height:105px;
      object-fit:cover;
      margin-top:18px;
      border-radius:7px;
      filter:saturate(.72);
    }

    .index-section{background:var(--paper)}
    .index-layout{
      display:grid;
      grid-template-columns:1.55fr .85fr;
      gap:64px;
      align-items:start;
    }
    .feature-lead{
      display:grid;
      grid-template-columns:1.1fr .9fr;
      min-height:420px;
      border:1px solid var(--line);
      background:var(--white);
      border-radius:var(--radius);
      overflow:hidden;
      transition:var(--ease);
    }
    .feature-lead:hover{box-shadow:var(--shadow);border-color:var(--copper)}
    .feature-lead img{height:100%;min-height:420px;object-fit:cover}
    .feature-lead-copy{padding:35px 32px;display:flex;flex-direction:column;justify-content:flex-end}
    .tag{
      display:inline-flex;
      width:max-content;
      align-items:center;
      padding:4px 9px;
      border:1px solid var(--copper);
      color:var(--copper);
      border-radius:3px;
      font-size:11px;
      line-height:1.4;
      letter-spacing:.08em;
    }
    .feature-lead h3{font-size:31px;margin:20px 0 14px}
    .feature-lead p{font-size:15px;color:var(--muted);margin-bottom:25px}
    .small-index{display:grid;gap:16px}
    .index-card{
      display:grid;
      grid-template-columns:105px 1fr;
      gap:17px;
      padding:15px;
      border:1px solid var(--line);
      background:rgba(255,253,247,.62);
      border-radius:10px;
      transition:var(--ease);
    }
    .index-card:hover{border-color:var(--copper);transform:translateX(4px)}
    .index-card img{height:102px;object-fit:cover;border-radius:6px}
    .index-card .tag{font-size:10px;padding:3px 7px}
    .index-card h3{font-size:18px;margin:10px 0 5px}
    .index-card p{font-size:13px;line-height:1.65;color:var(--muted);margin:0}

    .perspective-section{background:var(--paper-2)}
    .perspective-grid{
      display:grid;
      grid-template-columns:.78fr 1.22fr;
      gap:70px;
      align-items:center;
    }
    .perspective-image{
      position:relative;
      min-height:510px;
    }
    .perspective-image img{
      height:510px;
      object-fit:cover;
      border-radius:var(--radius);
    }
    .image-caption{
      position:absolute;
      bottom:20px;
      left:20px;
      right:20px;
      padding:16px 18px;
      background:rgba(12,14,13,.86);
      color:var(--white);
      border-left:2px solid var(--neon);
      font-size:13px;
    }
    .perspective-copy h2{font-size:clamp(32px,4vw,52px);margin:15px 0 24px}
    .perspective-copy > p{max-width:600px;color:#56534c}
    .insight-list{
      border-top:1px solid var(--line);
      margin-top:31px;
    }
    .insight-row{
      display:grid;
      grid-template-columns:56px 1fr auto;
      gap:18px;
      align-items:start;
      padding:21px 0;
      border-bottom:1px solid var(--line);
    }
    .insight-row .number{color:var(--copper);font-size:13px;font-weight:700}
    .insight-row h3{font-size:19px;margin:0 0 4px}
    .insight-row p{font-size:13px;line-height:1.7;color:var(--muted);margin:0}
    .insight-row a{font-size:13px;color:var(--copper);white-space:nowrap}
    .insight-row a:hover{color:var(--ink)}

    .quote-section{
      background:var(--deep);
      color:var(--white);
      padding:100px 0;
    }
    .quote-layout{
      display:grid;
      grid-template-columns:.72fr 1.28fr;
      gap:80px;
      align-items:start;
    }
    .quote-layout h2{font-size:clamp(32px,4vw,50px);margin:15px 0 0}
    .quote-main{
      padding:31px 0 31px 35px;
      border-left:2px solid var(--neon);
    }
    .quote-main blockquote{
      margin:0;
      font-size:clamp(23px,3vw,38px);
      line-height:1.5;
      letter-spacing:-.04em;
      color:var(--white);
    }
    .quote-main cite{
      display:block;
      margin-top:28px;
      color:var(--muted-dark);
      font-size:13px;
      font-style:normal;
    }
    .signal-row{
      display:grid;
      grid-template-columns:repeat(3,1fr);
      gap:22px;
      margin-top:56px;
      padding-top:25px;
      border-top:1px solid var(--line-dark);
    }
    .signal-row strong{display:block;color:var(--copper-light);font-size:28px;line-height:1.2}
    .signal-row span{display:block;color:var(--muted-dark);font-size:13px;margin-top:6px}

    .faq-section{background:var(--paper)}
    .faq-layout{
      display:grid;
      grid-template-columns:.78fr 1.22fr;
      gap:70px;
    }
    .faq-layout h2{font-size:clamp(32px,4vw,50px);margin:15px 0 20px}
    .faq-layout > div:first-child p{color:var(--muted);max-width:390px}
    .faq-list{border-top:1px solid var(--line)}
    .faq-item{border-bottom:1px solid var(--line)}
    .faq-question{
      width:100%;
      display:flex;
      justify-content:space-between;
      align-items:center;
      gap:20px;
      padding:21px 0;
      border:0;
      background:transparent;
      color:var(--ink);
      text-align:left;
      font-weight:700;
      min-height:64px;
    }
    .faq-question:after{
      content:"+";
      color:var(--copper);
      font-size:25px;
      font-weight:400;
      transition:transform .25s ease;
    }
    .faq-question[aria-expanded="true"]:after{content:"−"}
    .faq-answer{
      display:none;
      padding:0 42px 22px 0;
      color:var(--muted);
      font-size:14px;
      line-height:1.85;
    }
    .faq-answer.is-open{display:block}

    .cta-section{
      background:var(--copper);
      color:var(--deep);
      padding:72px 0;
    }
    .cta-layout{
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:40px;
    }
    .cta-layout h2{font-size:clamp(31px,4vw,52px);margin:13px 0 12px}
    .cta-layout p{max-width:610px;margin:0;color:rgba(12,14,13,.72)}
    .cta-layout .button{flex:none}
    .cta-layout .button.ink:hover{background:var(--white)}

    .bottom-bar{
      position:fixed;
      z-index:45;
      bottom:0;
      left:0;
      right:0;
      min-height:78px;
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:20px;
      padding:13px max(24px,calc((100vw - 1240px)/2));
      background:rgba(12,14,13,.98);
      color:var(--white);
      border-top:1px solid rgba(215,240,108,.46);
      box-shadow:0 -9px 24px rgba(0,0,0,.16);
    }
    .bottom-bar strong{display:block;font-size:15px}
    .bottom-bar span{display:block;color:var(--muted-dark);font-size:12px}
    .bottom-bar .button{min-height:42px;padding:8px 18px}

    .footer{
      background:var(--deep);
      color:var(--white);
      padding:72px 0 28px;
    }
    .footer-top{
      display:flex;
      justify-content:space-between;
      gap:70px;
      padding-bottom:56px;
      border-bottom:1px solid var(--line-dark);
    }
    .footer-brand{max-width:290px}
    .footer-brand .logo{margin-bottom:18px}
    .footer-brand p{color:var(--muted-dark);font-size:13px}
    .footer-nav{
      display:grid;
      grid-template-columns:repeat(3,minmax(130px,1fr));
      gap:55px;
    }
    .footer-nav h4{
      color:var(--copper-light);
      font-size:13px;
      letter-spacing:.08em;
      margin-bottom:17px;
    }
    .footer-nav a{
      display:block;
      color:var(--muted-dark);
      font-size:13px;
      margin:8px 0;
      transition:var(--ease);
    }
    .footer-nav a:hover{color:var(--neon);transform:translateX(3px)}
    .footer-bottom{
      display:flex;
      justify-content:space-between;
      gap:30px;
      padding-top:24px;
      color:#8f9087;
      font-size:12px;
      line-height:2;
    }
    .footer-bottom a{color:var(--copper-light)}
    .footer-bottom a:hover{color:var(--neon)}

    @media (max-width:1100px){
      .main-nav{gap:17px}
      .main-nav a{font-size:13px}
      .category-hero .hero-image{right:4%;width:38%}
      .index-layout,.perspective-grid,.faq-layout{gap:40px}
    }
    @media (max-width:900px){
      .topbar{gap:20px}
      .menu-toggle{display:block;margin-left:auto}
      .main-nav{
        display:none;
        position:absolute;
        top:80px;
        left:0;
        right:0;
        padding:12px 24px 24px;
        background:var(--deep);
        border-top:1px solid var(--line-dark);
        flex-direction:column;
        align-items:stretch;
        gap:0;
      }
      .main-nav.is-open{display:flex}
      .main-nav a{padding:14px 0;border-bottom:1px solid var(--line-dark)}
      .main-nav a.active:after,.main-nav a:hover:after{bottom:0}
      .main-nav .nav-cta{margin-top:14px;text-align:center;border-bottom:1px solid var(--copper)!important}
      .category-hero{min-height:670px}
      .category-hero .hero-image{top:auto;right:24px;bottom:0;width:42%;height:48%}
      .category-hero:before{background:linear-gradient(90deg,rgba(9,11,10,.96),rgba(9,11,10,.78) 70%,rgba(9,11,10,.38))}
      .hero-copy{width:62%}
      .feature-grid{grid-template-columns:1fr}
      .feature{border-right:0;border-bottom:1px solid var(--line-dark);margin:0;padding-right:0}
      .feature:last-child{border-bottom:0}
      .index-layout,.perspective-grid,.faq-layout{grid-template-columns:1fr}
      .perspective-image{min-height:390px;max-width:650px}
      .perspective-image img{height:390px}
      .quote-layout{grid-template-columns:1fr;gap:35px}
    }
    @media (max-width:640px){
      body{font-size:15px;padding-bottom:112px}
      .container{width:min(100% - 32px,1240px)}
      .section{padding:72px 0}
      .section-head{display:block;margin-bottom:30px}
      .section-head h2{margin-bottom:17px}
      .category-hero{min-height:720px}
      .category-hero .hero-image{right:16px;width:calc(100% - 32px);height:36%;opacity:.8}
      .category-hero:before{background:linear-gradient(180deg,rgba(9,11,10,.95) 0%,rgba(9,11,10,.83) 54%,rgba(9,11,10,.35))}
      .hero-inner{padding:72px 0 260px}
      .hero-copy{width:100%}
      .hero h1{font-size:42px}
      .hero-intro{font-size:16px}
      .hero-note{gap:22px;margin-top:32px}
      .hero-note strong{font-size:17px}
      .hero-index{right:15px;bottom:25px}
      .intro-grid{grid-template-columns:1fr;gap:28px}
      .feature-strip{padding:55px 0}
      .feature-lead{grid-template-columns:1fr}
      .feature-lead img{height:270px;min-height:0}
      .feature-lead-copy{padding:25px 22px 28px}
      .feature-lead h3{font-size:27px}
      .index-card{grid-template-columns:88px 1fr;padding:11px}
      .index-card img{height:88px}
      .insight-row{grid-template-columns:38px 1fr}
      .insight-row a{grid-column:2}
      .perspective-image,.perspective-image img{height:330px;min-height:330px}
      .signal-row{gap:12px}
      .signal-row strong{font-size:22px}
      .quote-main{padding-left:22px}
      .quote-main blockquote{font-size:25px}
      .cta-layout{display:block}
      .cta-layout .button{margin-top:27px}
      .bottom-bar{padding:12px 16px;min-height:102px}
      .bottom-bar .button{white-space:nowrap}
      .footer{padding-top:55px}
      .footer-top{display:block;padding-bottom:35px}
      .footer-nav{grid-template-columns:repeat(2,1fr);gap:28px;margin-top:35px}
      .footer-bottom{display:block}
      .footer-bottom > div + div{margin-top:12px}
    }
    @media (prefers-reduced-motion:reduce){
      *,*:before,*:after{scroll-behavior:auto!important;transition:none!important}
    }

/* roulang page: category4 */
:root{
      --ink:#111311;
      --coal:#191b19;
      --deep:#0c0e0d;
      --paper:#f5f2eb;
      --paper-2:#ebe6dc;
      --white:#fffdf7;
      --muted:#77766e;
      --muted-dark:#b8b6aa;
      --line:#d8d2c6;
      --line-dark:rgba(255,255,255,.18);
      --copper:#c89a61;
      --copper-light:#e4bd82;
      --neon:#d7f06c;
      --rose:#b98272;
      --radius:14px;
      --shadow:0 18px 45px rgba(26,23,16,.10);
      --ease:all .28s ease;
    }
    *,*:before,*:after{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{margin:0;background:var(--paper);color:var(--ink);font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans CJK SC",sans-serif;font-size:16px;line-height:1.85}
    body:has(.bottom-bar){padding-bottom:78px}
    a{color:inherit;text-decoration:none}
    img{display:block;width:100%;height:auto}
    button,input,textarea{font:inherit}
    button{cursor:pointer}
    h1,h2,h3,h4,p{margin-top:0}
    h1,h2,h3,h4{line-height:1.2;letter-spacing:-.035em}
    .container{width:min(1240px,calc(100% - 48px));margin:0 auto}
    .eyebrow{display:inline-flex;align-items:center;gap:10px;color:var(--copper);font-size:12px;letter-spacing:.16em;font-weight:700}
    .eyebrow:before{content:"";width:28px;height:1px;background:currentColor}
    .section{padding:104px 0}
    .section-head{display:flex;justify-content:space-between;align-items:end;gap:30px;margin-bottom:46px}
    .section-head h2{font-size:clamp(32px,4vw,54px);margin-bottom:0;max-width:650px}
    .section-head p{max-width:430px;color:var(--muted);margin-bottom:0}
    .header{position:sticky;top:0;z-index:50;background:rgba(12,14,13,.97);box-shadow:0 8px 22px rgba(0,0,0,.16)}
    .header:after{content:"";display:block;height:2px;background:linear-gradient(90deg,var(--neon),var(--copper),var(--neon))}
    .topbar{min-height:78px;display:flex;align-items:center;gap:42px}
    .logo{display:inline-flex;align-items:center;gap:11px;color:var(--white);font-size:24px;font-weight:750;white-space:nowrap;letter-spacing:-.08em}
    .logo-mark{display:inline-block;width:27px;height:27px;border:1px solid var(--neon);transform:rotate(45deg);position:relative}
    .logo-mark:after{content:"";position:absolute;width:9px;height:9px;background:var(--copper);right:4px;bottom:4px}
    .main-nav{display:flex;align-items:center;gap:25px;margin-left:auto}
    .main-nav a{position:relative;color:#bdbdb4;font-size:14px;white-space:nowrap;padding:26px 0;transition:var(--ease)}
    .main-nav a:hover,.main-nav a:focus,.main-nav a.active{color:var(--white)}
    .main-nav a.active:after,.main-nav a:hover:after{content:"";position:absolute;left:0;right:0;bottom:16px;height:2px;background:var(--neon);box-shadow:0 0 9px var(--neon)}
    .nav-cta{border:1px solid var(--copper)!important;color:var(--copper-light)!important;padding:9px 17px!important;border-radius:4px}
    .nav-cta:hover{background:var(--copper);color:var(--deep)!important}
    .menu-toggle{display:none;border:1px solid var(--line-dark);background:transparent;color:var(--white);padding:8px 12px;border-radius:5px;min-height:44px}
    .hero-category{position:relative;min-height:610px;display:flex;align-items:center;overflow:hidden;background:var(--deep);color:var(--white)}
    .hero-category:before{content:"";position:absolute;inset:0;background:linear-gradient(90deg,rgba(8,10,9,.97) 0%,rgba(8,10,9,.84) 45%,rgba(8,10,9,.28) 100%)}
    .hero-category:after{content:"04 / 05";position:absolute;right:5%;bottom:45px;color:rgba(255,255,255,.55);font-size:12px;letter-spacing:.2em}
    .hero-bg{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;opacity:.65}
    .hero-inner{position:relative;z-index:1;width:100%;padding:105px 0 115px}
    .hero-copy{max-width:720px}
    .hero h1{font-size:clamp(42px,6vw,78px);margin:22px 0 24px;color:var(--white)}
    .hero h1 em{display:block;color:var(--copper-light);font-style:normal}
    .hero-intro{max-width:650px;color:#e2e0d7;font-size:18px;line-height:1.9}
    .hero-actions{display:flex;flex-wrap:wrap;gap:13px;margin-top:32px}
    .button{display:inline-flex;align-items:center;justify-content:center;min-height:48px;padding:11px 22px;border-radius:4px;border:1px solid transparent;font-size:14px;font-weight:700;transition:var(--ease)}
    .button:focus-visible,.menu-toggle:focus-visible,.faq-question:focus-visible{outline:3px solid var(--neon);outline-offset:3px}
    .button.primary{background:var(--neon);color:var(--deep)}
    .button.primary:hover{background:#efffa9;transform:translateY(-2px);box-shadow:0 8px 20px rgba(215,240,108,.2)}
    .button.secondary{border-color:rgba(255,255,255,.4);color:var(--white);background:transparent}
    .button.secondary:hover{border-color:var(--copper-light);color:var(--copper-light)}
    .hero-data{position:absolute;right:0;bottom:0;width:330px;background:rgba(17,19,17,.93);border:1px solid rgba(215,240,108,.42);padding:25px}
    .hero-data .data-label{color:var(--neon);font-size:11px;letter-spacing:.14em}
    .hero-data h3{font-size:23px;color:var(--white);margin:14px 0 7px}
    .hero-data p{color:var(--muted-dark);font-size:13px;line-height:1.7;margin-bottom:0}
    .directory{background:var(--coal);color:var(--white);padding:72px 0}
    .directory-head{display:flex;justify-content:space-between;align-items:end;gap:30px;margin-bottom:30px}
    .directory h2{font-size:clamp(30px,4vw,48px);margin:16px 0 0}
    .directory-head p{max-width:430px;color:var(--muted-dark);margin:0}
    .directory-list{border-top:1px solid var(--line-dark)}
    .directory-item{display:grid;grid-template-columns:90px 1.1fr 1.6fr 110px;align-items:center;gap:25px;padding:25px 0;border-bottom:1px solid var(--line-dark);transition:var(--ease)}
    .directory-item:hover{padding-left:12px;background:rgba(215,240,108,.035)}
    .item-no{font-size:13px;color:var(--neon);letter-spacing:.12em}
    .item-title{font-size:21px;color:var(--white);margin:0}
    .item-text{font-size:14px;color:var(--muted-dark);line-height:1.7;margin:0}
    .item-meta{font-size:12px;color:var(--copper-light);text-align:right}
    .reading{background:var(--paper)}
    .reading-grid{display:grid;grid-template-columns:1.1fr .9fr;gap:72px;align-items:start}
    .reading h2{font-size:clamp(32px,4vw,52px);margin:17px 0 23px}
    .reading-copy{color:var(--muted);font-size:16px;max-width:600px}
    .reading-copy p{margin-bottom:22px}
    .quote{border-left:2px solid var(--copper);padding:8px 0 8px 23px;margin:30px 0;color:var(--ink);font-size:21px;line-height:1.6}
    .scent-panel{background:var(--paper-2);padding:30px;border-radius:var(--radius);border:1px solid var(--line)}
    .scent-panel img{height:235px;object-fit:cover;border-radius:9px;margin-bottom:25px}
    .scent-panel h3{font-size:25px;margin-bottom:12px}
    .scent-panel p{color:var(--muted);font-size:14px;margin-bottom:0}
    .notes{display:grid;grid-template-columns:repeat(3,1fr);gap:14px;margin-top:24px}
    .note{padding:17px;border:1px solid var(--line);background:rgba(255,253,247,.55);border-radius:8px}
    .note strong{display:block;color:var(--copper);font-size:13px;margin-bottom:5px}
    .note span{font-size:14px}
    .insight{background:var(--paper-2)}
    .insight-layout{display:grid;grid-template-columns:.72fr 1.28fr;gap:60px}
    .insight-aside{border-top:1px solid var(--ink);padding-top:20px}
    .insight-aside h3{font-size:22px;margin:14px 0}
    .insight-aside p{color:var(--muted);font-size:14px}
    .tag-list{display:flex;flex-wrap:wrap;gap:9px;margin-top:25px}
    .tag{display:inline-flex;padding:7px 12px;border:1px solid var(--line);border-radius:30px;color:var(--muted);font-size:13px;transition:var(--ease)}
    .tag:hover{border-color:var(--copper);color:var(--ink)}
    .insight-cards{display:grid;grid-template-columns:1fr 1fr;gap:16px}
    .insight-card{background:var(--white);border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;transition:var(--ease)}
    .insight-card:first-child{grid-column:span 2;display:grid;grid-template-columns:.8fr 1.2fr}
    .insight-card:hover{transform:translateY(-3px);box-shadow:var(--shadow);border-color:var(--copper)}
    .insight-card img{height:190px;object-fit:cover}
    .insight-card:first-child img{height:100%;min-height:230px}
    .insight-card-content{padding:22px}
    .card-label{font-size:11px;color:var(--copper);letter-spacing:.12em}
    .insight-card h3{font-size:21px;margin:12px 0 9px}
    .insight-card p{font-size:14px;line-height:1.75;color:var(--muted);margin-bottom:17px}
    .text-link{font-size:13px;color:var(--ink);font-weight:700;border-bottom:1px solid var(--copper);padding-bottom:3px}
    .text-link:hover{color:var(--copper)}
    .faq-section{background:var(--deep);color:var(--white)}
    .faq-layout{display:grid;grid-template-columns:.8fr 1.2fr;gap:80px}
    .faq-section h2{font-size:clamp(31px,4vw,50px);margin:17px 0}
    .faq-section .lead{color:var(--muted-dark);font-size:15px}
    .faq-list{border-top:1px solid var(--line-dark)}
    .faq-item{border-bottom:1px solid var(--line-dark)}
    .faq-question{display:flex;justify-content:space-between;align-items:center;width:100%;padding:22px 0;background:none;border:0;color:var(--white);text-align:left;font-weight:700}
    .faq-question span:last-child{color:var(--neon);font-size:22px;font-weight:400;transition:var(--ease)}
    .faq-question[aria-expanded="true"] span:last-child{transform:rotate(45deg)}
    .faq-answer{display:none;color:var(--muted-dark);font-size:14px;line-height:1.8;padding:0 35px 22px 0}
    .faq-answer.open{display:block}
    .cta{background:var(--copper);color:var(--deep);padding:72px 0}
    .cta-inner{display:flex;align-items:center;justify-content:space-between;gap:35px}
    .cta h2{font-size:clamp(30px,4vw,48px);margin:0 0 12px}
    .cta p{max-width:580px;margin:0;color:#30271c}
    .cta .button{border-color:var(--deep);color:var(--deep)}
    .cta .button:hover{background:var(--deep);color:var(--white)}
    .bottom-bar{position:fixed;z-index:45;left:0;right:0;bottom:0;background:rgba(12,14,13,.97);border-top:2px solid var(--neon);color:var(--white);padding:14px 0 calc(14px + env(safe-area-inset-bottom));box-shadow:0 -8px 25px rgba(0,0,0,.18)}
    .bottom-inner{display:flex;align-items:center;justify-content:space-between;gap:20px}
    .bottom-bar p{margin:0;color:var(--muted-dark);font-size:13px}
    .bottom-bar strong{color:var(--white);margin-right:12px}
    .bottom-bar .button{min-height:40px;padding:7px 18px}
    .footer{background:var(--coal);color:var(--white);padding:72px 0 30px}
    .footer-top{display:flex;justify-content:space-between;gap:70px;padding-bottom:55px;border-bottom:1px solid var(--line-dark)}
    .footer-brand{max-width:280px}
    .footer-brand p{color:var(--muted-dark);font-size:14px;margin-top:20px}
    .footer-nav{display:grid;grid-template-columns:repeat(3,150px);gap:45px}
    .footer-nav h4{color:var(--copper-light);font-size:13px;margin:0 0 16px}
    .footer-nav a{display:block;color:var(--muted-dark);font-size:13px;margin:8px 0;transition:var(--ease)}
    .footer-nav a:hover{color:var(--neon)}
    .footer-bottom{display:flex;justify-content:space-between;gap:20px;padding-top:25px;color:#85857c;font-size:12px;line-height:1.9}
    .footer-bottom a{color:var(--muted-dark)}
    .footer-bottom a:hover{color:var(--neon)}
    @media(max-width:1024px){
      .topbar{gap:22px}.main-nav{gap:16px}.main-nav a{font-size:13px}
      .hero-data{right:24px}.reading-grid,.faq-layout{gap:40px}.insight-layout{gap:35px}
    }
    @media(max-width:768px){
      .container{width:min(100% - 36px,620px)}
      .section{padding:76px 0}
      .menu-toggle{display:block;margin-left:auto}
      .main-nav{display:none;position:absolute;top:78px;left:0;right:0;background:var(--deep);padding:12px 20px 22px;flex-direction:column;align-items:stretch;gap:0;border-bottom:1px solid var(--line-dark)}
      .main-nav.is-open{display:flex}
      .main-nav a{padding:15px 0;border-bottom:1px solid rgba(255,255,255,.08)}
      .main-nav a.active:after,.main-nav a:hover:after{bottom:0}
      .main-nav .nav-cta{margin-top:12px;text-align:center}
      .hero-category{min-height:700px}.hero-inner{padding:85px 0 180px}.hero h1{font-size:clamp(40px,11vw,58px)}
      .hero-intro{font-size:16px}.hero-data{left:18px;right:18px;width:auto}
      .directory-head,.section-head,.cta-inner{display:block}.directory-head p,.section-head p{margin-top:18px}
      .directory-item{grid-template-columns:48px 1fr;gap:8px 15px;padding:22px 0}
      .item-title{font-size:19px}.item-text{grid-column:2}.item-meta{text-align:left;grid-column:2}
      .reading-grid,.insight-layout,.faq-layout{grid-template-columns:1fr}
      .notes{grid-template-columns:1fr}
      .insight-cards{grid-template-columns:1fr}.insight-card:first-child{grid-column:auto;display:block}.insight-card:first-child img{height:210px}
      .cta .button{margin-top:25px}
      .footer-top{display:block}.footer-nav{margin-top:40px;grid-template-columns:repeat(3,1fr);gap:20px}
      .footer-bottom{display:block}.footer-bottom>div+div{margin-top:14px}
      .bottom-bar{padding-top:11px}.bottom-inner p{font-size:12px}.bottom-bar strong{display:block;margin:0}
    }
    @media(max-width:520px){
      body{font-size:15px}.container{width:calc(100% - 30px)}
      .hero-category:after{right:15px;bottom:24px}.hero-inner{padding-bottom:195px}
      .hero-actions{display:grid;grid-template-columns:1fr}.button{width:100%}
      .footer-nav{grid-template-columns:1fr 1fr}.footer-nav div:last-child{grid-column:span 2}
      .bottom-inner{gap:10px}.bottom-bar .button{padding:7px 12px;font-size:12px}
    }
    @media(prefers-reduced-motion:reduce){
      *,*:before,*:after{scroll-behavior:auto!important;transition:none!important}
    }

/* roulang page: category3 */
:root{
      --ink:#111311;
      --coal:#191b19;
      --deep:#0c0e0d;
      --paper:#f5f2eb;
      --paper-2:#ebe6dc;
      --white:#fffdf7;
      --muted:#77766e;
      --muted-dark:#b8b6aa;
      --line:#d8d2c6;
      --line-dark:rgba(255,255,255,.18);
      --copper:#c89a61;
      --copper-light:#e4bd82;
      --neon:#d7f06c;
      --rose:#b98778;
      --radius:14px;
      --shadow:0 18px 45px rgba(26,23,16,.10);
      --ease:all .28s ease;
    }

    html{scroll-behavior:smooth}
    *{box-sizing:border-box}
    body{
      margin:0;
      background:var(--paper);
      color:var(--ink);
      font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans CJK SC",sans-serif;
      font-size:16px;
      line-height:1.85;
    }
    body:has(.bottom-bar){padding-bottom:78px}
    a{color:inherit;text-decoration:none}
    img{display:block;width:100%;height:auto}
    button,input,textarea{font:inherit}
    button{cursor:pointer}
    h1,h2,h3,h4,p{margin-top:0}
    h1,h2,h3,h4{line-height:1.2;letter-spacing:-.045em}
    .container{width:min(1240px,calc(100% - 48px));margin:0 auto}
    .eyebrow{
      display:inline-flex;
      align-items:center;
      gap:10px;
      color:var(--copper);
      font-size:12px;
      letter-spacing:.16em;
      font-weight:700;
    }
    .eyebrow:before{content:"";width:28px;height:1px;background:currentColor}
    .section{padding:108px 0}
    .section-head{
      display:flex;
      justify-content:space-between;
      align-items:end;
      gap:30px;
      margin-bottom:46px;
    }
    .section-head h2{font-size:clamp(32px,4vw,54px);max-width:650px;margin-bottom:0}
    .section-head p{max-width:450px;color:var(--muted);margin-bottom:0}
    .header{
      position:sticky;
      top:0;
      z-index:50;
      background:rgba(12,14,13,.97);
      box-shadow:0 8px 22px rgba(0,0,0,.16);
    }
    .header:after{
      content:"";
      display:block;
      height:2px;
      background:linear-gradient(90deg,var(--neon),var(--copper),var(--neon));
    }
    .topbar{min-height:78px;display:flex;align-items:center;gap:42px}
    .logo{
      display:inline-flex;
      align-items:center;
      gap:11px;
      color:var(--white);
      font-size:24px;
      font-weight:750;
      white-space:nowrap;
      letter-spacing:-.08em;
    }
    .logo-mark{
      display:inline-block;
      width:27px;
      height:27px;
      border:1px solid var(--neon);
      transform:rotate(45deg);
      position:relative;
    }
    .logo-mark:after{
      content:"";
      position:absolute;
      width:9px;
      height:9px;
      background:var(--copper);
      right:4px;
      bottom:4px;
    }
    .main-nav{display:flex;align-items:center;gap:25px;margin-left:auto}
    .main-nav a{
      position:relative;
      color:#bdbdb4;
      font-size:14px;
      white-space:nowrap;
      padding:26px 0;
      transition:var(--ease);
    }
    .main-nav a:hover,.main-nav a:focus,.main-nav a.active{color:var(--white)}
    .main-nav a.active:after,.main-nav a:hover:after{
      content:"";
      position:absolute;
      left:0;
      right:0;
      bottom:16px;
      height:2px;
      background:var(--neon);
      box-shadow:0 0 9px var(--neon);
    }
    .nav-cta{
      border:1px solid var(--copper)!important;
      color:var(--copper-light)!important;
      padding:9px 17px!important;
      border-radius:4px;
    }
    .nav-cta:hover{background:var(--copper);color:var(--deep)!important}
    .menu-toggle{
      display:none;
      border:1px solid var(--line-dark);
      background:transparent;
      color:var(--white);
      padding:8px 12px;
      border-radius:5px;
    }

    .editor-hero{
      position:relative;
      overflow:hidden;
      background:var(--deep);
      color:var(--white);
      padding:86px 0 92px;
    }
    .editor-hero:before{
      content:"03";
      position:absolute;
      right:5%;
      top:8%;
      color:rgba(215,240,108,.08);
      font-size:210px;
      line-height:1;
      font-weight:800;
      letter-spacing:-.1em;
    }
    .hero-grid{
      position:relative;
      z-index:1;
      display:grid;
      grid-template-columns:1.05fr .95fr;
      gap:76px;
      align-items:center;
    }
    .hero-copy h1{
      font-size:clamp(42px,6vw,78px);
      margin:21px 0 24px;
      max-width:650px;
    }
    .hero-copy h1 em{display:block;font-style:normal;color:var(--copper-light)}
    .hero-intro{
      max-width:590px;
      color:#dedbd1;
      font-size:18px;
      line-height:1.9;
    }
    .hero-search{
      display:flex;
      max-width:560px;
      margin-top:32px;
      border:1px solid rgba(255,255,255,.3);
      background:rgba(255,255,255,.06);
      padding:6px;
      border-radius:5px;
    }
    .hero-search input{
      min-width:0;
      flex:1;
      margin:0;
      height:48px;
      border:0;
      background:transparent;
      color:var(--white);
      box-shadow:none;
      padding:0 14px;
    }
    .hero-search input::placeholder{color:#aaa99f}
    .hero-search button{
      border:0;
      background:var(--neon);
      color:var(--deep);
      padding:0 18px;
      font-weight:750;
      border-radius:3px;
    }
    .hot-links{
      display:flex;
      flex-wrap:wrap;
      gap:9px;
      margin-top:17px;
      color:var(--muted-dark);
      font-size:13px;
    }
    .hot-links a{
      border-bottom:1px solid rgba(228,189,130,.5);
      color:var(--copper-light);
    }
    .hero-actions{display:flex;flex-wrap:wrap;gap:13px;margin-top:31px}
    .button{
      display:inline-flex;
      align-items:center;
      justify-content:center;
      min-height:48px;
      padding:11px 22px;
      border-radius:4px;
      border:1px solid transparent;
      font-size:14px;
      font-weight:700;
      transition:var(--ease);
    }
    .button:focus-visible,.menu-toggle:focus-visible,.faq-question:focus-visible,input:focus-visible,textarea:focus-visible{
      outline:3px solid var(--neon);
      outline-offset:3px;
    }
    .button.primary{background:var(--neon);color:var(--deep)}
    .button.primary:hover{
      background:#efffa9;
      transform:translateY(-2px);
      box-shadow:0 8px 20px rgba(215,240,108,.2);
    }
    .button.secondary{border-color:rgba(255,255,255,.4);color:var(--white);background:transparent}
    .button.secondary:hover{border-color:var(--copper-light);color:var(--copper-light)}
    .hero-visual{position:relative}
    .hero-visual img{
      height:560px;
      object-fit:cover;
      border-radius:3px;
      filter:saturate(.82) contrast(1.05);
    }
    .hero-visual:after{
      content:"";
      position:absolute;
      width:62%;
      height:62%;
      right:-28px;
      bottom:-26px;
      border:1px solid var(--copper);
      z-index:-1;
    }
    .visual-caption{
      position:absolute;
      left:-28px;
      bottom:26px;
      width:210px;
      padding:18px;
      background:var(--coal);
      border-left:2px solid var(--neon);
      color:var(--white);
      font-size:13px;
      line-height:1.7;
    }
    .visual-caption strong{display:block;color:var(--copper-light);font-size:19px;margin-bottom:5px}

    .topic-bar{background:var(--paper-2);border-bottom:1px solid var(--line)}
    .topic-inner{display:flex;align-items:center;gap:24px;overflow:auto;padding:18px 0}
    .topic-inner span{font-size:12px;color:var(--muted);white-space:nowrap;letter-spacing:.08em}
    .topic-inner a{
      padding:7px 14px;
      border:1px solid var(--line);
      border-radius:30px;
      font-size:13px;
      white-space:nowrap;
      transition:var(--ease);
    }
    .topic-inner a:hover,.topic-inner a.active{background:var(--coal);color:var(--neon);border-color:var(--coal)}

    .editor-section{background:var(--paper)}
    .editor-layout{
      display:grid;
      grid-template-columns:minmax(0,1.55fr) minmax(220px,.55fr);
      gap:66px;
      align-items:start;
    }
    .lead-story{
      display:grid;
      grid-template-columns:1.1fr .9fr;
      gap:30px;
      padding-bottom:42px;
      border-bottom:1px solid var(--line);
    }
    .lead-story img{
      height:380px;
      object-fit:cover;
      border-radius:var(--radius);
    }
    .story-copy{padding:16px 4px}
    .tag{
      display:inline-flex;
      color:var(--copper);
      font-size:12px;
      letter-spacing:.12em;
      font-weight:750;
    }
    .story-copy h2{font-size:clamp(28px,3.4vw,45px);margin:18px 0 17px}
    .story-copy p{color:var(--muted);font-size:15px}
    .text-link{
      display:inline-flex;
      align-items:center;
      gap:10px;
      color:var(--ink);
      font-weight:750;
      font-size:14px;
      border-bottom:1px solid var(--copper);
      padding-bottom:4px;
      transition:var(--ease);
    }
    .text-link:after{content:"→";color:var(--copper);transition:var(--ease)}
    .text-link:hover{color:var(--copper)}
    .text-link:hover:after{transform:translateX(4px)}

    .side-index{
      position:sticky;
      top:110px;
      border-top:2px solid var(--ink);
      padding-top:17px;
    }
    .side-index h3{font-size:20px;margin-bottom:20px}
    .side-index a{
      display:flex;
      justify-content:space-between;
      gap:16px;
      padding:13px 0;
      border-bottom:1px solid var(--line);
      color:var(--muted);
      font-size:14px;
      transition:var(--ease);
    }
    .side-index a span{color:var(--copper);font-size:12px}
    .side-index a:hover{color:var(--ink);padding-left:6px}

    .story-grid{
      display:grid;
      grid-template-columns:1.05fr .95fr;
      gap:20px;
      margin-top:24px;
    }
    .story-card{
      border:1px solid var(--line);
      background:var(--white);
      border-radius:var(--radius);
      overflow:hidden;
      transition:var(--ease);
    }
    .story-card:hover{transform:translateY(-4px);border-color:var(--copper);box-shadow:var(--shadow)}
    .story-card img{height:235px;object-fit:cover;transition:var(--ease)}
    .story-card:hover img{transform:scale(1.02)}
    .story-card-body{padding:22px 23px 26px}
    .story-card h3{font-size:23px;margin:12px 0 10px}
    .story-card p{color:var(--muted);font-size:14px;line-height:1.75;margin-bottom:17px}
    .story-card.featured{grid-row:span 2}
    .story-card.featured img{height:325px}

    .material-section{background:var(--coal);color:var(--white)}
    .material-grid{
      display:grid;
      grid-template-columns:.8fr 1.2fr;
      gap:76px;
      align-items:start;
    }
    .material-grid h2{font-size:clamp(32px,4vw,53px);margin:20px 0}
    .material-grid .section-lead{color:var(--muted-dark);max-width:420px}
    .material-list{border-top:1px solid var(--line-dark)}
    .material-item{
      display:grid;
      grid-template-columns:72px 1fr auto;
      gap:22px;
      align-items:start;
      padding:25px 0;
      border-bottom:1px solid var(--line-dark);
    }
    .material-item .num{color:var(--neon);font-size:13px;letter-spacing:.12em}
    .material-item h3{font-size:22px;margin-bottom:7px}
    .material-item p{color:var(--muted-dark);font-size:14px;margin:0;line-height:1.75}
    .material-item .arrow{color:var(--copper-light);font-size:22px;transition:var(--ease)}
    .material-item:hover .arrow{transform:translateX(5px);color:var(--neon)}

    .quote-section{background:var(--paper-2)}
    .quote-layout{display:grid;grid-template-columns:.75fr 1.25fr;gap:70px;align-items:center}
    .quote-image img{height:340px;object-fit:cover;border-radius:var(--radius)}
    blockquote{
      margin:0;
      padding:0 0 0 30px;
      border-left:2px solid var(--copper);
      font-size:clamp(25px,3.1vw,43px);
      line-height:1.45;
      letter-spacing:-.04em;
    }
    .quote-meta{color:var(--muted);font-size:14px;margin:22px 0 0 32px}

    .faq-section{background:var(--paper)}
    .faq-layout{display:grid;grid-template-columns:.7fr 1.3fr;gap:80px}
    .faq-layout h2{font-size:clamp(32px,4vw,52px);margin-top:18px}
    .accordion{background:transparent;margin:0;border-top:1px solid var(--line)}
    .accordion-item{background:transparent;border-bottom:1px solid var(--line)}
    .accordion-title{
      color:var(--ink);
      background:transparent;
      border:0;
      padding:22px 42px 22px 0;
      font-size:17px;
      font-weight:700;
    }
    .accordion-title:hover,.accordion-title:focus{background:transparent;color:var(--copper)}
    .accordion-title:before{right:8px;color:var(--copper);font-size:22px}
    .accordion-content{border:0;background:transparent;padding:0 42px 22px 0;color:var(--muted);font-size:15px;line-height:1.85}

    .cta-section{padding:84px 0;background:var(--deep);color:var(--white)}
    .cta-box{
      display:flex;
      justify-content:space-between;
      align-items:center;
      gap:35px;
      border-top:1px solid var(--line-dark);
      border-bottom:1px solid var(--line-dark);
      padding:34px 0;
    }
    .cta-box h2{font-size:clamp(29px,4vw,49px);margin:12px 0 0}
    .cta-box p{color:var(--muted-dark);max-width:560px;margin:12px 0 0}

    .bottom-bar{
      position:fixed;
      z-index:45;
      left:0;
      right:0;
      bottom:0;
      min-height:70px;
      background:rgba(12,14,13,.97);
      border-top:1px solid rgba(215,240,108,.45);
      box-shadow:0 -10px 25px rgba(0,0,0,.18);
      color:var(--white);
    }
    .bottom-bar .container{display:flex;align-items:center;justify-content:space-between;gap:20px;min-height:70px}
    .bottom-bar p{margin:0;color:#d7d4ca;font-size:14px}
    .bottom-bar strong{color:var(--neon);margin-right:8px}

    .footer{background:var(--deep);color:var(--white);padding:72px 0 28px}
    .footer-top{display:flex;justify-content:space-between;gap:80px;padding-bottom:52px;border-bottom:1px solid var(--line-dark)}
    .footer-brand{max-width:300px}
    .footer-brand p{color:var(--muted-dark);font-size:14px;margin-top:20px}
    .footer-nav{display:grid;grid-template-columns:repeat(3,150px);gap:38px}
    .footer-nav h4{font-size:13px;color:var(--copper-light);margin-bottom:15px}
    .footer-nav a{display:block;color:var(--muted-dark);font-size:13px;margin:8px 0;transition:var(--ease)}
    .footer-nav a:hover{color:var(--neon);padding-left:4px}
    .footer-bottom{display:flex;justify-content:space-between;gap:25px;padding-top:24px;color:#908f87;font-size:12px;line-height:1.9}
    .footer-bottom a{color:var(--copper-light)}
    .footer-bottom a:hover{color:var(--neon)}

    @media(max-width:1024px){
      .main-nav{gap:15px}
      .topbar{gap:22px}
      .hero-grid,.material-grid{gap:42px}
      .editor-layout{gap:35px}
      .section{padding:84px 0}
    }
    @media(max-width:767px){
      body{font-size:15px}
      body:has(.bottom-bar){padding-bottom:116px}
      .container{width:min(100% - 34px,600px)}
      .topbar{min-height:68px}
      .menu-toggle{display:block;margin-left:auto}
      .main-nav{
        display:none;
        position:absolute;
        left:0;
        right:0;
        top:68px;
        padding:12px 17px 22px;
        background:var(--deep);
        border-top:1px solid var(--line-dark);
        flex-direction:column;
        align-items:stretch;
        gap:0;
      }
      .main-nav.is-open{display:flex}
      .main-nav a{padding:14px 8px;font-size:15px}
      .main-nav a.active:after,.main-nav a:hover:after{left:8px;right:auto;width:35px;bottom:6px}
      .nav-cta{margin-top:8px;text-align:center}
      .editor-hero{padding:60px 0 70px}
      .hero-grid{grid-template-columns:1fr;gap:42px}
      .hero-copy h1{font-size:clamp(40px,12vw,60px)}
      .hero-intro{font-size:16px}
      .hero-visual img{height:390px}
      .visual-caption{left:12px;bottom:15px}
      .hero-visual:after{right:-10px;bottom:-12px}
      .topic-inner{padding:14px 0}
      .section{padding:72px 0}
      .section-head{display:block;margin-bottom:30px}
      .section-head p{margin-top:16px}
      .editor-layout,.lead-story,.story-grid,.material-grid,.quote-layout,.faq-layout{grid-template-columns:1fr}
      .lead-story{gap:18px}
      .lead-story img{height:280px}
      .side-index{position:static;order:-1}
      .story-card.featured{grid-row:auto}
      .story-card.featured img,.story-card img{height:240px}
      .material-grid{gap:38px}
      .material-item{grid-template-columns:45px 1fr auto;gap:12px}
      .quote-layout{gap:30px}
      .quote-image img{height:270px}
      blockquote{font-size:28px;padding-left:20px}
      .quote-meta{margin-left:22px}
      .faq-layout{gap:25px}
      .cta-box{display:block}
      .cta-box .button{margin-top:25px}
      .bottom-bar .container{min-height:104px;padding:13px 0;align-items:stretch;justify-content:center;flex-direction:column;gap:10px}
      .bottom-bar .button{width:100%;min-height:44px}
      .footer{padding-top:55px}
      .footer-top{display:block;padding-bottom:34px}
      .footer-nav{grid-template-columns:repeat(2,1fr);gap:20px;margin-top:35px}
      .footer-bottom{display:block}
      .footer-bottom > div + div{margin-top:12px}
    }
    @media(prefers-reduced-motion:reduce){
      *,*:before,*:after{scroll-behavior:auto!important;transition:none!important;animation:none!important}
    }

/* roulang page: category5 */
:root{
      --ink:#111311;
      --coal:#191b19;
      --deep:#0c0e0d;
      --paper:#f5f2eb;
      --paper-2:#ebe6dc;
      --white:#fffdf7;
      --muted:#77766e;
      --muted-dark:#b8b6aa;
      --line:#d8d2c6;
      --line-dark:rgba(255,255,255,.18);
      --copper:#c89a61;
      --copper-light:#e4bd82;
      --neon:#d7f06c;
      --radius:14px;
      --shadow:0 18px 45px rgba(26,23,16,.1);
      --ease:all .28s ease;
    }
    html{scroll-behavior:smooth}
    *{box-sizing:border-box}
    body{margin:0;background:var(--paper);color:var(--ink);font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans CJK SC",sans-serif;font-size:16px;line-height:1.85}
    body:has(.bottom-bar){padding-bottom:78px}
    a{color:inherit;text-decoration:none}
    img{display:block;width:100%;height:auto}
    button,input,textarea{font:inherit}
    button{cursor:pointer}
    h1,h2,h3,h4,p{margin-top:0}
    h1,h2,h3,h4{line-height:1.2;letter-spacing:-.04em}
    .container{width:min(1240px,calc(100% - 48px));margin:0 auto}
    .eyebrow{display:inline-flex;align-items:center;gap:10px;color:var(--copper);font-size:12px;letter-spacing:.16em;font-weight:700}
    .eyebrow:before{content:"";width:28px;height:1px;background:currentColor}
    .section{padding:108px 0}
    .section-head{display:flex;justify-content:space-between;align-items:end;gap:30px;margin-bottom:46px}
    .section-head h2{font-size:clamp(32px,4vw,54px);max-width:650px;margin-bottom:0}
    .section-head p{max-width:450px;color:var(--muted);margin-bottom:0}
    .header{position:sticky;top:0;z-index:50;background:rgba(12,14,13,.97);box-shadow:0 8px 22px rgba(0,0,0,.16)}
    .header:after{content:"";display:block;height:2px;background:linear-gradient(90deg,var(--neon),var(--copper),var(--neon))}
    .topbar{min-height:78px;display:flex;align-items:center;gap:42px}
    .logo{display:inline-flex;align-items:center;gap:11px;color:var(--white);font-size:24px;font-weight:750;white-space:nowrap;letter-spacing:-.08em}
    .logo-mark{display:inline-block;width:27px;height:27px;border:1px solid var(--neon);transform:rotate(45deg);position:relative}
    .logo-mark:after{content:"";position:absolute;width:9px;height:9px;background:var(--copper);right:4px;bottom:4px}
    .main-nav{display:flex;align-items:center;gap:25px;margin-left:auto}
    .main-nav a{position:relative;color:#bdbdb4;font-size:14px;white-space:nowrap;padding:26px 0;transition:var(--ease)}
    .main-nav a:hover,.main-nav a:focus,.main-nav a.active{color:var(--white)}
    .main-nav a.active:after,.main-nav a:hover:after{content:"";position:absolute;left:0;right:0;bottom:16px;height:2px;background:var(--neon);box-shadow:0 0 9px var(--neon)}
    .nav-cta{border:1px solid var(--copper)!important;color:var(--copper-light)!important;padding:9px 17px!important;border-radius:4px}
    .nav-cta:hover{background:var(--copper);color:var(--deep)!important}
    .menu-toggle{display:none;border:1px solid var(--line-dark);background:transparent;color:var(--white);padding:8px 12px;border-radius:5px}
    .hero-inner{padding:100px 0 92px}
    .inner-hero{position:relative;overflow:hidden;background:var(--deep) url("/assets/images/backpic/back-3.webp") center/cover no-repeat;color:var(--white)}
    .inner-hero:before{content:"";position:absolute;inset:0;background:linear-gradient(90deg,rgba(9,11,10,.95),rgba(9,11,10,.78) 52%,rgba(9,11,10,.2))}
    .inner-hero .container{position:relative;z-index:1}
    .hero-copy{max-width:760px}
    .hero h1{font-size:clamp(40px,6vw,76px);margin:22px 0 24px}
    .hero h1 em{display:block;color:var(--copper-light);font-style:normal}
    .hero-intro{color:#e2e0d7;font-size:18px;line-height:1.9;max-width:700px;margin-bottom:0}
    .hero-actions{display:flex;flex-wrap:wrap;gap:13px;margin-top:34px}
    .button{display:inline-flex;align-items:center;justify-content:center;min-height:48px;padding:11px 22px;border-radius:4px;border:1px solid transparent;font-size:14px;font-weight:700;transition:var(--ease)}
    .button:focus-visible,.menu-toggle:focus-visible,.faq-question:focus-visible,input:focus-visible,textarea:focus-visible{outline:3px solid var(--neon);outline-offset:3px}
    .button.primary{background:var(--neon);color:var(--deep)}
    .button.primary:hover{background:#efffa9;transform:translateY(-2px);box-shadow:0 8px 20px rgba(215,240,108,.2)}
    .button.secondary{border-color:rgba(255,255,255,.4);color:var(--white);background:transparent}
    .button.secondary:hover{border-color:var(--copper-light);color:var(--copper-light)}
    .hero-note{display:flex;gap:35px;margin-top:48px;padding-top:20px;border-top:1px solid rgba(255,255,255,.23);color:var(--muted-dark);font-size:13px}
    .hero-note strong{display:block;color:var(--white);font-size:22px;line-height:1.25}
    .insight-band{background:var(--coal);color:var(--white);padding:30px 0}
    .band-inner{display:flex;align-items:center;justify-content:space-between;gap:24px}
    .band-inner p{margin:0;color:var(--muted-dark)}
    .band-label{color:var(--neon);font-size:12px;letter-spacing:.16em}
    .timeline-section{background:var(--paper)}
    .timeline{border-top:1px solid var(--line)}
    .timeline-item{display:grid;grid-template-columns:150px 1fr 190px;gap:35px;padding:34px 0;border-bottom:1px solid var(--line);align-items:start;transition:var(--ease)}
    .timeline-item:hover{background:rgba(200,154,97,.07);padding-left:18px;padding-right:18px}
    .timeline-date{color:var(--copper);font-size:13px;letter-spacing:.08em}
    .timeline-content h3{font-size:26px;margin-bottom:10px}
    .timeline-content p{color:var(--muted);max-width:670px;margin:0}
    .timeline-tag{justify-self:end;border:1px solid var(--line);color:var(--muted);padding:6px 12px;border-radius:20px;font-size:12px}
    .feature-area{background:var(--paper-2)}
    .feature-layout{display:grid;grid-template-columns:1.1fr .9fr;gap:70px;align-items:center}
    .feature-image{position:relative}
    .feature-image img{height:470px;object-fit:cover;border-radius:var(--radius)}
    .image-caption{position:absolute;bottom:18px;left:18px;background:var(--deep);color:var(--white);padding:11px 16px;font-size:12px;border-left:2px solid var(--neon)}
    .feature-copy h2{font-size:clamp(32px,4vw,52px);margin:18px 0 22px}
    .feature-copy p{color:var(--muted);max-width:560px}
    .bullet-list{list-style:none;padding:0;margin:30px 0}
    .bullet-list li{padding:13px 0 13px 25px;border-top:1px solid var(--line);position:relative}
    .bullet-list li:before{content:"";position:absolute;left:0;top:24px;width:8px;height:8px;background:var(--copper);border-radius:50%}
    .quote-section{background:var(--deep);color:var(--white)}
    .quote-grid{display:grid;grid-template-columns:1fr 1.7fr;gap:80px;align-items:start}
    .quote-grid h2{font-size:clamp(30px,4vw,48px);margin-top:16px}
    blockquote{margin:0;font-size:clamp(23px,3vw,36px);line-height:1.55;color:var(--white);border-left:2px solid var(--neon);padding-left:35px}
    blockquote cite{display:block;margin-top:26px;color:var(--muted-dark);font-size:14px;font-style:normal}
    .faq-section{background:var(--paper)}
    .faq-list{max-width:900px;margin:0 auto;border-top:1px solid var(--line)}
    .faq-item{border-bottom:1px solid var(--line)}
    .faq-question{display:flex;width:100%;justify-content:space-between;align-items:center;text-align:left;background:transparent;border:0;padding:23px 0;color:var(--ink);font-weight:700}
    .faq-question span:last-child{font-size:24px;color:var(--copper);transition:transform .25s}
    .faq-question[aria-expanded="true"] span:last-child{transform:rotate(45deg)}
    .faq-answer{display:none;color:var(--muted);padding:0 45px 24px 0;max-width:780px}
    .faq-answer.open{display:block}
    .contact-section{background:var(--copper);padding:78px 0}
    .contact-grid{display:grid;grid-template-columns:1fr 1.2fr;gap:70px;align-items:start}
    .contact-section h2{font-size:clamp(34px,4vw,56px);margin:17px 0}
    .contact-section p{max-width:470px}
    .contact-form{background:var(--white);padding:30px;border-radius:var(--radius);box-shadow:var(--shadow)}
    .form-row{display:grid;grid-template-columns:1fr 1fr;gap:18px}
    label{display:block;font-size:13px;font-weight:700;margin-bottom:7px}
    input,textarea{width:100%;border:1px solid var(--line);background:#fffdf9;border-radius:5px;padding:12px 13px;color:var(--ink);transition:var(--ease)}
    input::placeholder,textarea::placeholder{color:#aaa79d}
    input:focus,textarea:focus{border-color:var(--copper);box-shadow:0 0 0 3px rgba(200,154,97,.16);outline:0}
    textarea{min-height:110px;resize:vertical}
    .form-field{margin-bottom:18px}
    .form-message{display:none;margin-top:13px;color:#526a2e;font-size:14px}
    .form-message.show{display:block}
    .footer{background:var(--deep);color:var(--white);padding:72px 0 28px}
    .footer-top{display:flex;justify-content:space-between;gap:70px;padding-bottom:55px;border-bottom:1px solid var(--line-dark)}
    .footer-brand{max-width:300px}
    .footer-brand p{color:var(--muted-dark);font-size:14px;margin-top:22px}
    .footer-nav{display:grid;grid-template-columns:repeat(3,1fr);gap:75px}
    .footer-nav h4{color:var(--copper-light);font-size:13px;margin-bottom:18px}
    .footer-nav a{display:block;color:var(--muted-dark);font-size:13px;margin:9px 0;transition:var(--ease)}
    .footer-nav a:hover{color:var(--neon);padding-left:4px}
    .footer-bottom{display:flex;justify-content:space-between;gap:20px;padding-top:24px;color:#85867e;font-size:12px}
    .footer-bottom a:hover{color:var(--white)}
    .bottom-bar{position:fixed;z-index:40;bottom:0;left:0;right:0;background:rgba(12,14,13,.97);border-top:1px solid var(--neon);color:var(--white);padding:14px 0 calc(14px + env(safe-area-inset-bottom));box-shadow:0 -8px 24px rgba(0,0,0,.2)}
    .bottom-inner{display:flex;align-items:center;justify-content:space-between;gap:20px}
    .bottom-inner p{margin:0;color:var(--muted-dark);font-size:14px}
    .bottom-inner strong{color:var(--white);margin-right:12px}
    @media(max-width:1024px){
      .main-nav{gap:15px}
      .topbar{gap:20px}
      .feature-layout,.contact-grid{gap:40px}
      .section{padding:82px 0}
    }
    @media(max-width:768px){
      .container{width:min(100% - 36px,620px)}
      .topbar{min-height:68px;justify-content:space-between}
      .menu-toggle{display:block}
      .main-nav{display:none;position:absolute;top:70px;left:0;right:0;background:var(--deep);padding:13px 24px 22px;flex-direction:column;align-items:stretch;gap:0;border-top:1px solid var(--line-dark)}
      .main-nav.open{display:flex}
      .main-nav a{padding:14px 0}
      .main-nav a.active:after,.main-nav a:hover:after{bottom:7px}
      .nav-cta{text-align:center;margin-top:8px}
      .hero-inner{padding:78px 0 70px}
      .hero h1{font-size:43px}
      .hero-intro{font-size:16px}
      .hero-note{gap:20px;flex-wrap:wrap;margin-top:35px}
      .section-head,.band-inner,.footer-top,.footer-bottom{display:block}
      .section-head p{margin-top:18px}
      .timeline-item{grid-template-columns:1fr;gap:8px;padding:25px 0}
      .timeline-item:hover{padding-left:10px;padding-right:10px}
      .timeline-tag{justify-self:start}
      .feature-layout,.contact-grid,.quote-grid{grid-template-columns:1fr;gap:35px}
      .feature-image img{height:330px}
      blockquote{padding-left:22px}
      .footer-nav{margin-top:38px;gap:24px}
      .footer-bottom div+div{margin-top:16px}
      .bottom-inner{align-items:stretch}
      .bottom-inner p{font-size:12px}
      .bottom-inner .button{min-height:42px;padding:8px 14px}
    }
    @media(max-width:520px){
      body{font-size:15px}
      .container{width:calc(100% - 30px)}
      .hero h1{font-size:36px}
      .hero-actions .button{width:100%}
      .form-row{grid-template-columns:1fr;gap:0}
      .contact-form{padding:22px}
      .footer-nav{grid-template-columns:1fr 1fr}
      .footer-nav div:last-child{grid-column:span 2}
      .bottom-inner strong{display:block;margin:0 0 3px}
    }
    @media(prefers-reduced-motion:reduce){
      *,*:before,*:after{scroll-behavior:auto!important;transition:none!important}
    }