/* roulang page: index */
:root{
      --cream:#fffaf2;
      --paper:#fffdf9;
      --apricot:#f59a45;
      --orange:#e87532;
      --plum:#5b294d;
      --berry:#8e3d64;
      --ink:#292329;
      --muted:#756c72;
      --line:#eaded7;
      --mint:#5e9f8c;
      --shadow:0 18px 55px rgba(75,42,48,.10);
      --shadow-card:0 10px 30px rgba(76,43,47,.08);
      --radius:22px;
    }
    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{margin:0;background:var(--cream);color:var(--ink);font-family:"Noto Sans SC","PingFang SC","Microsoft YaHei",sans-serif;line-height:1.75;-webkit-font-smoothing:antialiased}
    a{color:inherit;text-decoration:none}
    img{max-width:100%;display:block}
    button,input,textarea{font:inherit}
    button{cursor:pointer}
    .container{width:min(1180px,calc(100% - 40px));margin:0 auto}
    .site-header{position:sticky;top:0;z-index:50;background:rgba(255,250,242,.94);backdrop-filter:blur(14px);border-bottom:1px solid rgba(234,222,215,.9)}
    .nav-shell{height:76px;display:flex;align-items:center;justify-content:space-between;gap:28px}
    .brand{display:flex;align-items:center;gap:10px;font-size:20px;font-weight:800;letter-spacing:-.03em;color:var(--plum);white-space:nowrap}
    .brand-mark{width:34px;height:34px;border-radius:12px;background:var(--orange);color:#fff;display:grid;place-items:center;box-shadow:0 7px 16px rgba(232,117,50,.25)}
    .brand-mark:before{content:"▶";font-size:13px;margin-left:2px}
    .nav-links{display:flex;align-items:center;gap:5px}
    .nav-links a{padding:10px 14px;border-radius:999px;color:#675c62;font-size:14px;font-weight:600;transition:.22s ease}
    .nav-links a:hover,.nav-links a:focus,.nav-links a.active{color:var(--plum);background:#f7e8dc}
    .nav-cta,.btn-primary{background:var(--orange);color:#fff;border:1px solid var(--orange);box-shadow:0 9px 20px rgba(232,117,50,.20)}
    .nav-cta{padding:10px 18px;border-radius:999px;font-size:14px;font-weight:700;transition:.22s ease}
    .nav-cta:hover,.btn-primary:hover{background:#d9632a;transform:translateY(-2px);box-shadow:0 12px 25px rgba(232,117,50,.28)}
    .menu-button{display:none;border:1px solid var(--line);background:#fff;border-radius:12px;width:44px;height:44px;color:var(--plum)}
    .mobile-nav{display:none;padding:0 0 18px}
    .mobile-nav.open{display:grid;gap:5px}
    .mobile-nav a{padding:12px 14px;border-radius:12px;color:var(--plum);font-weight:650}
    .mobile-nav a:hover{background:#f7e8dc}
    .hero{padding:76px 0 70px;position:relative;overflow:hidden;background:linear-gradient(110deg,#fffaf2 0%,#fff6e9 54%,#f8e5e4 100%)}
    .hero:before{content:"";position:absolute;right:-160px;top:-160px;width:450px;height:450px;border-radius:50%;background:rgba(245,154,69,.16)}
    .hero-grid{position:relative;display:grid;grid-template-columns:1.02fr .98fr;gap:62px;align-items:center}
    .eyebrow,.section-kicker{display:inline-flex;align-items:center;gap:8px;color:var(--berry);font-size:13px;font-weight:800;letter-spacing:.08em}
    .eyebrow:before,.section-kicker:before{content:"";width:25px;height:3px;border-radius:5px;background:var(--orange)}
    h1,h2,h3{margin:0;color:var(--plum);letter-spacing:-.04em;line-height:1.22}
    h1{font-size:clamp(38px,5vw,68px);max-width:700px;margin-top:18px}
    .hero-copy{font-size:17px;color:#655b61;max-width:650px;margin:24px 0 28px}
    .button-row{display:flex;flex-wrap:wrap;gap:12px}
    .btn-primary,.btn-secondary{display:inline-flex;align-items:center;justify-content:center;min-height:48px;padding:12px 20px;border-radius:14px;font-size:15px;font-weight:750;transition:.22s ease}
    .btn-secondary{border:1px solid #d9c5bb;background:rgba(255,255,255,.55);color:var(--plum)}
    .btn-secondary:hover{border-color:var(--orange);background:#fff;transform:translateY(-2px)}
    .hero-note{display:flex;flex-wrap:wrap;gap:10px;margin-top:28px}
    .pill,.tag{display:inline-flex;align-items:center;gap:6px;border-radius:999px;padding:6px 11px;background:#fff;border:1px solid #ecdcd3;color:#715f63;font-size:12px;font-weight:650}
    .hero-stage{min-height:445px;position:relative;background-image:linear-gradient(135deg,rgba(91,41,77,.82),rgba(91,41,77,.22)),url('/assets/images/9c12caff8bef130a.jpg');background-size:cover;background-position:center;border-radius:30px;padding:28px;box-shadow:var(--shadow);overflow:hidden}
    .stage-card{position:absolute;left:28px;bottom:28px;width:210px;background:rgba(255,253,249,.95);border-radius:18px;padding:17px;box-shadow:0 15px 35px rgba(44,22,31,.22)}
    .stage-card small{color:var(--muted);font-size:12px}
    .stage-card strong{display:block;color:var(--plum);font-size:18px;margin:3px 0 8px}
    .progress{height:6px;background:#eadfdb;border-radius:9px;overflow:hidden}.progress span{display:block;width:68%;height:100%;background:var(--orange);border-radius:9px}
    .stage-bubble{position:absolute;right:26px;top:25px;background:var(--orange);color:#fff;border-radius:16px;padding:11px 14px;font-weight:750;font-size:13px;box-shadow:0 10px 25px rgba(232,117,50,.3)}
    .play-orb{position:absolute;right:34px;bottom:34px;width:68px;height:68px;border-radius:50%;display:grid;place-items:center;background:#fff;color:var(--orange);font-size:22px;box-shadow:0 12px 28px rgba(41,35,41,.2)}
    .section{padding:100px 0}
    .section.alt{background:#fffdf9}
    .section-head{display:flex;justify-content:space-between;gap:30px;align-items:end;margin-bottom:38px}
    .section-head h2{font-size:clamp(28px,3.5vw,44px);margin-top:13px}
    .section-lead{max-width:575px;color:var(--muted);font-size:15px;margin:0}
    .feature-grid{display:grid;grid-template-columns:1.25fr .85fr .85fr;grid-template-rows:auto auto;gap:18px}
    .feature-card,.metric-card,.scene-card,.article-card,.faq-item,.eco-panel,.notice-card{background:var(--paper);border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow-card);transition:.24s ease}
    .feature-card:hover,.scene-card:hover,.article-card:hover,.eco-panel:hover{transform:translateY(-4px);box-shadow:var(--shadow)}
    .feature-card{padding:26px}
    .feature-card.large{grid-row:span 2;background:var(--plum);color:#fff;border-color:var(--plum);position:relative;overflow:hidden}
    .feature-card.large:after{content:"✦";position:absolute;right:22px;bottom:5px;font-size:100px;color:rgba(255,255,255,.08)}
    .feature-card.large h3{color:#fff;font-size:28px}.feature-card.large p{color:#eadde2}
    .feature-card h3{font-size:20px;margin:18px 0 8px}.feature-card p{margin:0;color:var(--muted);font-size:14px}
    .icon-box{width:42px;height:42px;border-radius:14px;display:grid;place-items:center;background:#fff0e1;color:var(--orange);font-size:20px;font-weight:800}
    .feature-card.large .icon-box{background:rgba(255,255,255,.14);color:#ffd19b}
    .metric-band{background:var(--plum);border-radius:28px;padding:30px;color:#fff;display:grid;grid-template-columns:repeat(4,1fr);gap:15px}
    .metric-card{background:rgba(255,255,255,.08);border-color:rgba(255,255,255,.13);padding:23px;color:#fff;box-shadow:none}
    .metric-number{font-size:34px;font-weight:850;color:#ffc17c;letter-spacing:-.06em}
    .metric-card strong{display:block;font-size:15px;margin-top:5px}.metric-card p{font-size:12px;color:#dfcfd7;margin:5px 0 0}
    .metric-bottom{display:flex;flex-wrap:wrap;gap:9px;margin-top:20px}
    .metric-bottom .tag{background:rgba(255,255,255,.1);border-color:rgba(255,255,255,.2);color:#f6e8df}
    .steps{display:grid;grid-template-columns:repeat(5,1fr);gap:12px;position:relative}
    .step{position:relative;padding:24px 18px 20px;border-top:3px solid #e9c9b2}
    .step-number{color:var(--orange);font-weight:850;font-size:14px}.step h3{font-size:18px;margin:12px 0 7px}.step p{margin:0;color:var(--muted);font-size:13px}
    .scene-track{display:grid;grid-template-columns:1fr 1.25fr 1fr 1fr;gap:18px;align-items:start}
    .scene-card{overflow:hidden}.scene-card.tall{margin-top:35px}.scene-image{height:190px;background-size:cover;background-position:center}.scene-card.tall .scene-image{height:240px}
    .scene-body{padding:18px}.scene-body h3{font-size:19px;margin:10px 0 5px}.scene-body p{margin:0;color:var(--muted);font-size:13px}
    .article-layout{display:grid;grid-template-columns:1.15fr .85fr;gap:20px}
    .featured-article{min-height:305px;padding:30px;border-radius:26px;background:linear-gradient(125deg,rgba(91,41,77,.9),rgba(91,41,77,.55)),url('/assets/images/efc64bfc8c110fad.jpg') center/cover;color:#fff;display:flex;flex-direction:column;justify-content:end}
    .featured-article h3{color:#fff;font-size:28px;max-width:520px;margin:14px 0}.featured-article p{color:#f2e3e7;margin:0;max-width:520px;font-size:14px}
    .article-list{display:grid;gap:10px}.article-card{padding:17px 20px;display:grid;grid-template-columns:72px 1fr;gap:14px;align-items:center}.article-date{font-size:12px;color:var(--orange);font-weight:800}.article-card h3{font-size:16px;margin:2px 0}.article-card p{font-size:12px;color:var(--muted);margin:0}
    .eco-wrap{display:grid;grid-template-columns:.9fr 1.1fr;gap:24px;align-items:stretch}.eco-panel{padding:30px;background:#f7e9e0}.eco-panel h3{font-size:26px;margin:13px 0}.eco-panel p{color:var(--muted);font-size:14px;margin:0}.eco-tags{display:flex;flex-wrap:wrap;align-content:center;gap:12px;padding:30px;border-radius:var(--radius);background:#fff;border:1px solid var(--line)}
    .eco-tag{padding:15px 18px;border-radius:15px;background:#fff8ef;border:1px dashed #dfb89d;color:var(--plum);font-weight:750}.eco-tag:nth-child(2n){background:#f7e8ed;border-color:#d4a8b8}.eco-tag:nth-child(3n){background:#eaf4ef;border-color:#a9cec0}
    .faq-list{max-width:900px;margin:0 auto;display:grid;gap:12px}.faq-item{overflow:hidden}.faq-q{width:100%;padding:21px 24px;background:transparent;border:0;color:var(--plum);display:flex;align-items:center;justify-content:space-between;text-align:left;font-weight:800;font-size:16px}.faq-q span:last-child{color:var(--orange);font-size:22px;transition:.2s}.faq-item.open .faq-q span:last-child{transform:rotate(45deg)}.faq-a{display:none;padding:0 24px 22px;color:var(--muted);font-size:14px}.faq-item.open .faq-a{display:block}
    .notice-strip{display:grid;grid-template-columns:repeat(4,1fr);gap:14px}.notice-card{padding:22px;background:#fff}.notice-card h3{font-size:16px;margin:10px 0 5px}.notice-card p{margin:0;color:var(--muted);font-size:13px}
    .notice-icon{width:32px;height:32px;border-radius:10px;background:#e6f3ed;color:var(--mint);display:grid;place-items:center;font-weight:800}
    .cta-section{padding:88px 0;background:var(--plum);color:#fff}.cta-box{display:flex;justify-content:space-between;align-items:center;gap:35px}.cta-box h2{color:#fff;font-size:clamp(30px,4vw,48px);max-width:690px}.cta-box p{color:#eadde2;max-width:650px;margin:15px 0 0}.cta-box .btn-secondary{background:#fff;color:var(--plum);border-color:#fff}
    .site-footer{background:#291d27;color:#e8dce0;padding:55px 0 25px}.footer-grid{display:grid;grid-template-columns:1.3fr .8fr .9fr;gap:50px}.footer-brand{color:#fff;font-size:20px;font-weight:800}.footer-text{color:#bcaeb4;font-size:13px;max-width:340px;margin-top:15px}.footer-title{font-size:14px;color:#fff;font-weight:800;margin-bottom:15px}.footer-links{display:grid;gap:9px;color:#bcaeb4;font-size:13px}.footer-links a:hover{color:#ffc17c}.footer-bottom{border-top:1px solid rgba(255,255,255,.12);margin-top:40px;padding-top:18px;color:#9f9198;font-size:12px;display:flex;justify-content:space-between;gap:15px}
    :focus-visible{outline:3px solid rgba(245,154,69,.55);outline-offset:3px}
    @media(max-width:1024px){.hero-grid{gap:35px}.feature-grid{grid-template-columns:1fr 1fr}.feature-card.large{grid-row:span 1;grid-column:span 2}.steps{grid-template-columns:repeat(3,1fr)}.scene-track{grid-template-columns:repeat(2,1fr)}.scene-card.tall{margin-top:0}.notice-strip{grid-template-columns:repeat(2,1fr)}}
    @media(max-width:768px){.container{width:min(100% - 32px,620px)}.nav-links,.nav-cta{display:none}.menu-button{display:block}.hero{padding:55px 0}.hero-grid{grid-template-columns:1fr}.hero-stage{min-height:360px}.section{padding:72px 0}.section-head{display:block}.section-lead{margin-top:14px}.metric-band{grid-template-columns:1fr 1fr}.eco-wrap,.article-layout{grid-template-columns:1fr}.cta-box{display:block}.cta-box .button-row{margin-top:25px}.footer-grid{grid-template-columns:1fr 1fr;gap:30px}.footer-grid>div:first-child{grid-column:span 2}}
    @media(max-width:640px){.container{width:calc(100% - 28px)}h1{font-size:39px}.hero-copy{font-size:15px}.button-row{display:grid;grid-template-columns:1fr}.btn-primary,.btn-secondary{width:100%}.hero-stage{min-height:310px;padding:18px}.stage-card{left:18px;bottom:18px}.play-orb{right:19px;bottom:20px}.feature-grid,.steps,.scene-track{grid-template-columns:1fr}.feature-card.large{grid-column:auto}.metric-band{grid-template-columns:1fr 1fr;padding:18px}.metric-number{font-size:28px}.article-card{grid-template-columns:58px 1fr}.notice-strip{grid-template-columns:1fr}.footer-grid{grid-template-columns:1fr}.footer-grid>div:first-child{grid-column:auto}.footer-bottom{display:block}.footer-bottom span{display:block;margin-top:8px}}