/* roulang page: index */
:root{
  --berry:#a83d72;
  --berry-dark:#7e2857;
  --berry-soft:#f8e9f0;
  --mint:#35a99a;
  --mint-soft:#e4f5f1;
  --amber:#b98132;
  --ink:#29232b;
  --muted:#766c77;
  --line:#e8dfe7;
  --paper:#fffdfd;
  --lavender:#f5f0f6;
  --rose:#fff5f7;
  --radius:20px;
  --shadow:0 14px 40px rgba(72,35,61,.09);
  --container:1200px;
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{font-family:"Noto Sans SC","Microsoft YaHei",Arial,sans-serif;background:var(--paper);color:var(--ink);line-height:1.75;font-size:15px}
a{color:inherit;text-decoration:none}
img{max-width:100%;display:block}
button,input,textarea,select{font:inherit}
button{cursor:pointer;border:0}
.container{width:min(var(--container),calc(100% - 48px));margin:auto}
.site-header{height:78px;background:rgba(255,253,253,.96);border-bottom:1px solid var(--line);position:sticky;top:0;z-index:20;backdrop-filter:blur(12px)}
.nav-wrap{height:78px;display:flex;align-items:center;justify-content:space-between;gap:28px}
.logo{display:flex;align-items:center;gap:11px;font-weight:800;color:var(--berry);font-size:18px;letter-spacing:-.4px;white-space:nowrap}
.logo-mark{width:36px;height:36px;border-radius:12px;background:var(--berry);color:#fff;display:grid;place-items:center;font-weight:800;font-size:16px;box-shadow:0 7px 16px rgba(168,61,114,.25)}
.nav-links{display:flex;align-items:center;gap:5px}
.nav-links a{padding:9px 13px;border-radius:10px;color:#5f555f;font-size:14px;transition:.2s}
.nav-links a:hover,.nav-links a.active{background:var(--berry-soft);color:var(--berry-dark)}
.nav-action,.btn-primary{background:var(--berry);color:#fff;padding:12px 18px;border-radius:11px;font-weight:700;display:inline-flex;align-items:center;justify-content:center;gap:8px;transition:.2s;box-shadow:0 8px 18px rgba(168,61,114,.18)}
.nav-action:hover,.btn-primary:hover{background:var(--berry-dark);transform:translateY(-2px)}
.nav-action:active,.btn-primary:active,.btn-secondary:active{transform:translateY(0)}
.menu-toggle{display:none;background:var(--berry-soft);color:var(--berry);width:42px;height:42px;border-radius:11px;font-size:20px}
.hero{padding:78px 0 68px;background:linear-gradient(135deg,#fffdfd 0%,#fff5f7 58%,#f1eaf4 100%);overflow:hidden}
.hero-grid{display:grid;grid-template-columns:1.08fr .92fr;gap:70px;align-items:center}
.eyebrow,.section-kicker{color:var(--berry);font-size:13px;font-weight:800;letter-spacing:1.5px;text-transform:uppercase}
.hero h1{font-size:clamp(36px,5vw,64px);line-height:1.18;letter-spacing:-2px;margin:17px 0 22px;max-width:680px}
.hero h1 em{font-style:normal;color:var(--berry)}
.hero-copy{color:var(--muted);font-size:17px;max-width:610px}
.hero-actions{display:flex;gap:12px;flex-wrap:wrap;margin-top:31px}
.btn-secondary{border:1px solid #dcb8ca;color:var(--berry-dark);background:#fff;padding:11px 18px;border-radius:11px;font-weight:700;transition:.2s}
.btn-secondary:hover{background:var(--berry-soft);transform:translateY(-2px)}
.hero-note{display:flex;gap:22px;margin-top:27px;color:var(--muted);font-size:13px}
.hero-note span{display:flex;align-items:center;gap:7px}
.hero-note i{width:8px;height:8px;background:var(--mint);border-radius:50%;display:inline-block}
.portal-art{position:relative;min-height:390px}
.portal-panel{background:#fff;border:1px solid #eee1e9;border-radius:26px;padding:24px;box-shadow:var(--shadow);width:88%;margin-left:auto;position:relative;z-index:2}
.portal-top{display:flex;justify-content:space-between;align-items:center;border-bottom:1px solid var(--line);padding-bottom:18px}
.portal-top strong{font-size:18px}
.status{color:var(--mint);background:var(--mint-soft);border-radius:20px;padding:4px 10px;font-size:12px}
.portal-search{height:43px;background:var(--lavender);border-radius:11px;margin:20px 0;display:flex;align-items:center;padding:0 14px;color:var(--muted);font-size:13px}
.portal-items{display:grid;grid-template-columns:1fr 1fr;gap:12px}
.portal-item{padding:15px;border-radius:14px;background:var(--rose);border:1px solid #f4e3e9}
.portal-item b{display:block;margin-bottom:5px}.portal-item small{color:var(--muted)}
.art-orb{position:absolute;width:230px;height:230px;background:#e7c9d8;border-radius:50%;right:-32px;bottom:0;opacity:.7}
.art-line{position:absolute;width:180px;height:180px;border:1px solid #c990ad;border-radius:50%;left:12px;top:35px}
.section{padding:88px 0}
.section.alt{background:var(--lavender)}
.section-head{display:flex;align-items:end;justify-content:space-between;gap:25px;margin-bottom:31px}
.section-head h2{font-size:32px;line-height:1.25;letter-spacing:-1px;margin-top:8px}
.section-head p{color:var(--muted);max-width:520px}
.text-link{color:var(--berry);font-weight:700;white-space:nowrap}
.text-link:hover{text-decoration:underline}
.quick-grid{display:grid;grid-template-columns:repeat(6,1fr);gap:12px}
.quick-item{background:#fff;border:1px solid var(--line);border-radius:16px;padding:20px 15px;min-height:125px;transition:.25s}
.quick-item:hover{transform:translateY(-4px);box-shadow:var(--shadow);border-color:#d9a9bf}
.quick-icon{width:36px;height:36px;border-radius:11px;background:var(--berry-soft);color:var(--berry);display:grid;place-items:center;font-weight:800;margin-bottom:13px}
.quick-item h3{font-size:15px}.quick-item p{font-size:12px;color:var(--muted);margin-top:3px}
.split{display:grid;grid-template-columns:.9fr 1.1fr;gap:70px;align-items:center}
.split h2{font-size:34px;line-height:1.3;margin:10px 0 18px}
.split p{color:var(--muted)}
.feature-list{list-style:none;margin-top:25px;display:grid;gap:13px}
.feature-list li{display:flex;gap:12px;align-items:flex-start}
.check{background:var(--mint-soft);color:var(--mint);border-radius:50%;width:25px;height:25px;display:grid;place-items:center;flex:none;font-size:13px;font-weight:800}
.device-stage{background:#eadce8;border-radius:26px;min-height:350px;display:grid;place-items:center;position:relative;overflow:hidden}
.device{width:205px;background:#29232b;border-radius:30px;padding:10px;box-shadow:0 22px 35px rgba(41,35,43,.25);transform:rotate(6deg)}
.device-screen{background:#fff;border-radius:22px;min-height:325px;padding:18px 13px}
.screen-bar{height:9px;width:58px;background:#e9d7e1;border-radius:8px;margin:0 auto 22px}
.screen-title{font-size:17px;font-weight:800;color:var(--berry-dark);margin-bottom:14px}
.screen-card{height:62px;background:var(--rose);border-radius:11px;margin:9px 0;padding:10px;font-size:12px}
.download-box{background:var(--berry);color:#fff;border-radius:25px;padding:38px 42px;display:grid;grid-template-columns:1fr 190px;gap:35px;align-items:center;overflow:hidden;position:relative}
.download-box:after{content:"";position:absolute;width:280px;height:280px;border:1px solid rgba(255,255,255,.2);border-radius:50%;right:-80px;top:-100px}
.download-box h2{font-size:31px;line-height:1.3;margin:8px 0 13px}
.download-box p{color:#f7eaf0}.download-meta{display:flex;gap:20px;flex-wrap:wrap;margin-top:20px;font-size:13px;color:#f5dce8}
.qr-area{background:#fff;color:var(--ink);border-radius:16px;padding:15px;text-align:center;position:relative;z-index:1}
.qr{width:112px;height:112px;margin:0 auto 8px;background:repeating-linear-gradient(45deg,#31262e 0 4px,#fff 4px 8px);border:8px solid #fff;outline:1px solid #ddd}
.qr-area small{color:var(--muted)}
.news-grid{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.news-card{background:#fff;border:1px solid var(--line);border-radius:17px;padding:22px;display:flex;flex-direction:column;min-height:190px;transition:.2s}
.news-card:hover{box-shadow:var(--shadow);border-color:#d9a9bf;transform:translateY(-3px)}
.card-meta{display:flex;justify-content:space-between;color:var(--muted);font-size:12px;margin-bottom:12px}
.tag{display:inline-flex;align-items:center;background:var(--berry-soft);color:var(--berry-dark);padding:3px 9px;border-radius:30px;font-size:12px;font-weight:700}
.news-card h3{font-size:18px;line-height:1.45;margin-bottom:8px}.news-card p{color:var(--muted);font-size:13px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}.read{color:var(--berry);font-size:13px;font-weight:700;margin-top:auto;padding-top:15px}
.empty{grid-column:1/-1;background:#fff;border:1px dashed #d9bfd0;padding:35px;text-align:center;color:var(--muted);border-radius:16px}
.dynamic-flow{display:grid;grid-template-columns:1.2fr .8fr;gap:22px}
.timeline,.update-card{background:#fff;border:1px solid var(--line);border-radius:18px;padding:25px}
.timeline-item{display:grid;grid-template-columns:105px 1fr;gap:18px;padding:15px 0;border-bottom:1px solid var(--line)}.timeline-item:last-child{border:0}.timeline-item time{color:var(--berry);font-weight:700;font-size:13px}.timeline-item h3{font-size:16px}.timeline-item p{color:var(--muted);font-size:13px}
.update-card{background:var(--rose)}.update-card h3{font-size:21px;margin:12px 0}.update-card ul{list-style:none;color:var(--muted);font-size:14px;line-height:2.2}.update-card li:before{content:"•";color:var(--berry);margin-right:8px}
.mosaic{display:grid;grid-template-columns:1.35fr .8fr .8fr;grid-template-rows:155px 155px;gap:14px}.mosaic-card{border-radius:18px;padding:22px;color:#fff;background:var(--berry);position:relative;overflow:hidden}.mosaic-card:first-child{grid-row:span 2;background:#733454}.mosaic-card:nth-child(2){background:#35a99a}.mosaic-card:nth-child(3){background:#c27d91}.mosaic-card:nth-child(4){background:#8c6a86}.mosaic-card h3{font-size:20px;position:relative;z-index:1}.mosaic-card p{font-size:13px;opacity:.85;position:relative;z-index:1;margin-top:7px}.mosaic-card small{opacity:.7}
.matrix{display:grid;grid-template-columns:repeat(4,1fr);gap:14px}.matrix-card{padding:25px;background:#fff;border:1px solid var(--line);border-radius:18px}.matrix-card b{font-size:30px;color:#d9bdce}.matrix-card h3{margin:5px 0 7px}.matrix-card p{color:var(--muted);font-size:13px}
.guide-steps{display:grid;grid-template-columns:repeat(4,1fr);gap:0;border:1px solid var(--line);border-radius:20px;background:#fff;overflow:hidden}.step{padding:27px 23px;border-right:1px solid var(--line)}.step:last-child{border:0}.step-num{color:var(--berry);font-weight:800;font-size:13px}.step h3{font-size:17px;margin:9px 0}.step p{color:var(--muted);font-size:13px}
.security{display:grid;grid-template-columns:1fr 1fr;gap:16px}.security-card{padding:25px;border-radius:18px;background:var(--mint-soft);border:1px solid #ccebe5}.security-card:last-child{background:#fff5e8;border-color:#f0dec0}.security-card h3{margin-bottom:7px}.security-card p{color:var(--muted);font-size:13px}
.faq-list{max-width:850px;margin:auto}.faq{border-bottom:1px solid var(--line);padding:18px 0}.faq button{width:100%;display:flex;justify-content:space-between;background:none;text-align:left;font-weight:700;color:var(--ink);padding:3px 0}.faq button span:last-child{color:var(--berry);font-size:20px}.faq-answer{display:none;color:var(--muted);font-size:14px;padding:10px 30px 2px 0}.faq.open .faq-answer{display:block}
.feedback{display:grid;grid-template-columns:.8fr 1.2fr;gap:45px;align-items:start}.feedback h2{font-size:30px;line-height:1.3;margin:9px 0 14px}.feedback p{color:var(--muted)}.form-card{background:#fff;border:1px solid var(--line);border-radius:20px;padding:26px;box-shadow:var(--shadow)}.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:15px}.field{display:grid;gap:6px}.field.full{grid-column:1/-1}.field label{font-size:13px;font-weight:700}.field input,.field select,.field textarea{width:100%;border:1px solid var(--line);border-radius:10px;background:#fff;padding:11px 12px;outline:0}.field textarea{min-height:95px;resize:vertical}.field input:focus,.field select:focus,.field textarea:focus{border-color:var(--berry);box-shadow:0 0 0 3px var(--berry-soft)}.form-submit{margin-top:17px}.form-hint{font-size:12px;color:var(--muted);margin-top:10px}
.bottom-cta{background:var(--rose);padding:54px 0}.cta-inner{display:flex;justify-content:space-between;align-items:center;gap:25px}.cta-inner h2{font-size:29px}.cta-inner p{color:var(--muted);margin-top:5px}.cta-actions{display:flex;gap:10px;flex-wrap:wrap}
.site-footer{background:#2d252c;color:#e9dfe6;padding:55px 0 24px}.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:35px;padding-bottom:40px}.footer-logo{color:#fff}.footer-brand p{color:#b9aeb7;font-size:13px;max-width:270px;margin-top:14px}.footer-col h3{font-size:14px;color:#fff;margin-bottom:13px}.footer-col a{display:block;color:#b9aeb7;font-size:13px;margin:8px 0}.footer-col a:hover{color:#fff}.footer-bottom{border-top:1px solid #4b4049;padding-top:20px;display:flex;justify-content:space-between;gap:20px;color:#a99ca6;font-size:12px}.footer-legal{display:flex;gap:15px;flex-wrap:wrap}
:focus-visible{outline:3px solid rgba(53,169,154,.7);outline-offset:3px}
@media(max-width:1100px){.quick-grid{grid-template-columns:repeat(3,1fr)}.hero-grid{gap:35px}.matrix{grid-template-columns:repeat(2,1fr)}}
@media(max-width:820px){.container{width:min(100% - 34px,var(--container))}.nav-links{display:none;position:absolute;left:17px;right:17px;top:70px;background:#fff;border:1px solid var(--line);border-radius:15px;padding:10px;box-shadow:var(--shadow);flex-direction:column;align-items:stretch}.nav-links.show{display:flex}.nav-links a{padding:12px}.nav-action{display:none}.menu-toggle{display:block}.hero{padding:55px 0}.hero-grid,.split,.dynamic-flow,.feedback{grid-template-columns:1fr}.portal-art{min-height:330px}.section{padding:62px 0}.download-box{grid-template-columns:1fr}.qr-area{max-width:190px}.mosaic{grid-template-columns:1fr 1fr;grid-template-rows:auto}.mosaic-card:first-child{grid-row:auto;grid-column:span 2}.guide-steps{grid-template-columns:1fr 1fr}.step:nth-child(2){border-right:0}.step{border-bottom:1px solid var(--line)}.footer-grid{grid-template-columns:1fr 1fr}}
@media(max-width:520px){body{font-size:14px}.container{width:calc(100% - 28px)}.logo{font-size:15px}.logo-mark{width:32px;height:32px}.hero h1{font-size:37px;letter-spacing:-1px}.hero-copy{font-size:15px}.hero-note{gap:11px;flex-direction:column}.section-head{display:block}.section-head h2,.split h2{font-size:27px}.section-head p{margin-top:10px}.quick-grid,.news-grid,.matrix,.security{grid-template-columns:1fr}.quick-item{min-height:auto}.portal-panel{width:100%}.portal-art{min-height:300px}.download-box{padding:28px 22px}.download-box h2{font-size:26px}.mosaic{display:flex;flex-direction:column}.mosaic-card:first-child{min-height:180px}.guide-steps{grid-template-columns:1fr}.step,.step:nth-child(2){border-right:0;border-bottom:1px solid var(--line)}.step:last-child{border-bottom:0}.form-grid{grid-template-columns:1fr}.field.full{grid-column:auto}.cta-inner{display:block}.cta-actions{margin-top:20px}.footer-grid{grid-template-columns:1fr 1fr;gap:25px}.footer-brand{grid-column:1/-1}.footer-bottom{display:block}.footer-legal{margin-top:12px}.timeline-item{grid-template-columns:1fr;gap:3px}}

/* roulang page: article */
:root{
      --berry:#a83d72;
      --berry-dark:#7e2857;
      --berry-soft:#f8e9f0;
      --mint:#35a99a;
      --mint-soft:#e4f5f1;
      --amber:#b98132;
      --ink:#29232b;
      --muted:#766c77;
      --line:#e8dfe7;
      --paper:#fffdfd;
      --lavender:#f5f0f6;
      --rose:#fff5f7;
      --radius:20px;
      --shadow:0 14px 40px rgba(72,35,61,.09);
      --container:1200px;
    }
    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{margin:0;background:var(--paper);color:var(--ink);font-family:"Noto Sans SC","Microsoft YaHei",Arial,sans-serif;font-size:15px;line-height:1.75}
    a{color:inherit;text-decoration:none}
    img{display:block;max-width:100%;height:auto}
    button,input,textarea{font:inherit}
    button{cursor:pointer;border:0}
    .container{width:min(var(--container),calc(100% - 48px));margin:0 auto}
    .site-header{height:78px;background:rgba(255,253,253,.96);border-bottom:1px solid var(--line);position:sticky;top:0;z-index:20;backdrop-filter:blur(12px)}
    .nav-wrap{height:78px;display:flex;align-items:center;justify-content:space-between;gap:28px}
    .logo{display:flex;align-items:center;gap:11px;color:var(--berry);font-size:18px;font-weight:800;letter-spacing:-.4px;white-space:nowrap}
    .logo-mark{width:36px;height:36px;border-radius:12px;background:var(--berry);color:#fff;display:grid;place-items:center;font-weight:800;box-shadow:0 7px 16px rgba(168,61,114,.25)}
    .nav-links{display:flex;align-items:center;gap:5px}
    .nav-links a{padding:9px 13px;border-radius:10px;color:#5f555f;font-size:14px;transition:.2s}
    .nav-links a:hover,.nav-links a.active{background:var(--berry-soft);color:var(--berry-dark)}
    .nav-action,.btn-primary{display:inline-flex;align-items:center;justify-content:center;gap:8px;background:var(--berry);color:#fff;padding:12px 18px;border-radius:11px;font-weight:700;box-shadow:0 8px 18px rgba(168,61,114,.18);transition:.2s}
    .nav-action:hover,.btn-primary:hover{background:var(--berry-dark);color:#fff;transform:translateY(-2px)}
    .btn-secondary{display:inline-flex;align-items:center;justify-content:center;border:1px solid #dcb8ca;color:var(--berry-dark);background:#fff;padding:11px 18px;border-radius:11px;font-weight:700;transition:.2s}
    .btn-secondary:hover{background:var(--berry-soft);transform:translateY(-2px)}
    .nav-action:focus,.btn-primary:focus,.btn-secondary:focus,.nav-links a:focus,.menu-toggle:focus{outline:3px solid rgba(53,169,154,.35);outline-offset:3px}
    .menu-toggle{display:none;background:var(--berry-soft);color:var(--berry);width:42px;height:42px;border-radius:11px;font-size:20px}
    .article-hero{padding:62px 0 54px;background:linear-gradient(135deg,#fffdfd,#fff5f7 62%,#f1eaf4)}
    .breadcrumb{display:flex;align-items:center;gap:9px;flex-wrap:wrap;color:var(--muted);font-size:13px;margin-bottom:25px}
    .breadcrumb a{color:var(--berry);font-weight:700}
    .breadcrumb span{color:#b4aab4}
    .article-heading{max-width:900px}
    .eyebrow,.section-kicker{color:var(--berry);font-size:13px;font-weight:800;letter-spacing:1.4px}
    .article-heading h1{font-size:clamp(32px,5vw,56px);line-height:1.25;letter-spacing:-1.7px;margin:14px 0 20px;overflow-wrap:anywhere}
    .article-summary{max-width:780px;color:var(--muted);font-size:17px;margin:0 0 24px}
    .article-meta{display:flex;align-items:center;gap:12px;flex-wrap:wrap;color:var(--muted);font-size:13px}
    .tag{display:inline-flex;align-items:center;background:var(--berry-soft);color:var(--berry-dark);padding:3px 10px;border-radius:30px;font-size:12px;font-weight:700}
    .article-layout{display:grid;grid-template-columns:minmax(0,790px) 300px;gap:44px;align-items:start;padding:72px 0 84px}
    .article-body{min-width:0;background:#fff;border:1px solid var(--line);border-radius:22px;padding:clamp(24px,4vw, fiftypx);box-shadow:0 8px 28px rgba(72,35,61,.045)}
    .article-body h2{font-size:28px;line-height:1.35;margin:36px 0 15px;color:var(--berry-dark)}
    .article-body h3{font-size:21px;line-height:1.45;margin:28px 0 12px}
    .article-body p{margin:0 0 19px;color:#4d454e}
    .article-body ul,.article-body ol{padding-left:1.5em;margin:16px 0 24px;color:#4d454e}
    .article-body li{margin:7px 0}
    .article-body blockquote{margin:25px 0;padding:18px 22px;border-left:4px solid var(--mint);background:var(--mint-soft);border-radius:0 14px 14px 0;color:#456660}
    .article-body table{display:block;max-width:100%;overflow:auto;border-collapse:collapse;margin:22px 0}
    .article-body th,.article-body td{border:1px solid var(--line);padding:10px 14px;white-space:nowrap}
    .article-body th{background:var(--berry-soft);color:var(--berry-dark)}
    .article-body img{border-radius:15px;margin:25px auto}
    .article-body a{color:var(--berry);text-decoration:underline;text-underline-offset:3px}
    .article-side{position:sticky;top:105px;display:grid;gap:16px}
    .side-card,.support-card{background:#fff;border:1px solid var(--line);border-radius:18px;padding:23px}
    .side-card h2,.support-card h2{font-size:18px;margin:0 0 13px}
    .side-card p,.support-card p{color:var(--muted);font-size:13px;margin:0}
    .side-list{list-style:none;padding:0;margin:15px 0 0;display:grid;gap:10px}
    .side-list li{padding-bottom:10px;border-bottom:1px solid var(--line)}
    .side-list li:last-child{border-bottom:0;padding-bottom:0}
    .side-list a{font-weight:700;font-size:14px;color:#514750}
    .side-list a:hover{color:var(--berry)}
    .article-tools{display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:16px;margin-top:34px;padding-top:24px;border-top:1px solid var(--line)}
    .tool-tags{display:flex;gap:7px;flex-wrap:wrap}
    .reading-note{display:flex;gap:13px;align-items:flex-start;margin-top:25px;padding:17px 19px;border-radius:15px;background:var(--mint-soft);color:#476d68;font-size:13px}
    .reading-note strong{color:#277d72;white-space:nowrap}
    .support-section{padding:0 0 82px;background:var(--paper)}
    .support-grid{display:grid;grid-template-columns:1fr 1fr;gap:18px}
    .support-card.rose{background:var(--rose)}
    .support-card.mint{background:var(--mint-soft)}
    .support-card h2{color:var(--berry-dark)}
    .support-card .btn-primary,.support-card .btn-secondary{margin-top:18px}
    .feedback-form{display:grid;gap:12px;margin-top:16px}
    .feedback-form label{font-size:13px;font-weight:700;color:#534951}
    .feedback-form textarea{width:100%;min-height:88px;resize:vertical;border:1px solid var(--line);border-radius:11px;padding:10px 12px;background:#fff;outline:none}
    .feedback-form textarea:focus{border-color:var(--mint);box-shadow:0 0 0 3px rgba(53,169,154,.12)}
    .cta-band{padding:48px 0;background:var(--berry-soft)}
    .cta-inner{display:flex;justify-content:space-between;align-items:center;gap:25px}
    .cta-inner h2{margin:0 0 7px;font-size:28px;color:var(--berry-dark)}
    .cta-inner p{margin:0;color:var(--muted)}
    .cta-actions{display:flex;gap:10px;flex-wrap:wrap}
    .site-footer{background:#302832;color:#eee4eb;padding:54px 0 22px}
    .footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:35px}
    .footer-logo{color:#fff}
    .footer-brand p{color:#bbaeb8;font-size:13px;margin:15px 0 0;max-width:260px}
    .footer-col{display:grid;align-content:start;gap:8px}
    .footer-col h3{font-size:14px;color:#fff;margin:0 0 8px}
    .footer-col a{color:#bbaeb8;font-size:13px;transition:.2s}
    .footer-col a:hover{color:#fff}
    .footer-bottom{display:flex;justify-content:space-between;gap:18px;flex-wrap:wrap;margin-top:42px;padding-top:19px;border-top:1px solid rgba(255,255,255,.13);color:#aa9da8;font-size:12px}
    .footer-legal{display:flex;gap:14px;flex-wrap:wrap}
    .footer-legal a:hover{color:#fff}
    @media(max-width:992px){
      .nav-links{gap:0}.nav-links a{padding:8px 8px;font-size:13px}
      .article-layout{grid-template-columns:1fr}.article-side{position:static;grid-template-columns:1fr 1fr}
      .footer-grid{grid-template-columns:1.4fr 1fr 1fr}
    }
    @media(max-width:768px){
      .container{width:min(var(--container),calc(100% - 32px))}
      .site-header,.nav-wrap{height:68px}
      .nav-links{display:none;position:absolute;left:16px;right:16px;top:75px;padding:10px;background:#fff;border:1px solid var(--line);border-radius:16px;box-shadow:var(--shadow);flex-direction:column;align-items:stretch}
      .nav-links.open{display:flex}.nav-links a{padding:12px 14px}
      .nav-action{display:none}.menu-toggle{display:block}
      .article-hero{padding:42px 0 40px}.article-layout{padding:46px 0 56px;gap:28px}
      .article-body{padding:24px 20px}.article-body h2{font-size:24px}
      .article-side,.support-grid{grid-template-columns:1fr}
      .cta-inner{display:block}.cta-actions{margin-top:20px}
      .footer-grid{grid-template-columns:1fr 1fr;gap:28px}
    }
    @media(max-width:520px){
      .logo{font-size:15px;gap:8px}.logo-mark{width:32px;height:32px;border-radius:10px}
      .article-heading h1{font-size:31px;letter-spacing:-1px}
      .article-summary{font-size:15px}.article-tools{align-items:flex-start;flex-direction:column}
      .footer-grid{grid-template-columns:1fr}.footer-bottom{margin-top:30px}
    }

/* roulang page: category1 */
:root{
      --berry:#a83d72;--berry-dark:#7e2857;--berry-soft:#f8e9f0;
      --mint:#35a99a;--mint-soft:#e4f5f1;--amber:#b98132;--ink:#29232b;
      --muted:#766c77;--line:#e8dfe7;--paper:#fffdfd;--lavender:#f5f0f6;
      --rose:#fff5f7;--radius:20px;--shadow:0 14px 40px rgba(72,35,61,.09);
      --container:1200px;
    }
    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{margin:0;background:var(--paper);color:var(--ink);font-family:"Noto Sans SC","Microsoft YaHei",Arial,sans-serif;font-size:15px;line-height:1.75}
    a{color:inherit;text-decoration:none}
    a:focus-visible,button:focus-visible{outline:3px solid rgba(53,169,154,.45);outline-offset:3px}
    img{max-width:100%;display:block}
    button,input,textarea,select{font:inherit}
    button{cursor:pointer;border:0}
    .container{width:min(var(--container),calc(100% - 48px));margin:auto}
    .site-header{height:78px;background:rgba(255,253,253,.96);border-bottom:1px solid var(--line);position:sticky;top:0;z-index:20;backdrop-filter:blur(12px)}
    .nav-wrap{height:78px;display:flex;align-items:center;justify-content:space-between;gap:28px}
    .logo{display:flex;align-items:center;gap:11px;font-weight:800;color:var(--berry);font-size:18px;letter-spacing:-.4px;white-space:nowrap}
    .logo-mark{width:36px;height:36px;border-radius:12px;background:var(--berry);color:#fff;display:grid;place-items:center;font-weight:800;font-size:16px;box-shadow:0 7px 16px rgba(168,61,114,.25)}
    .nav-links{display:flex;align-items:center;gap:5px}
    .nav-links a{padding:9px 13px;border-radius:10px;color:#5f555f;font-size:14px;transition:.2s}
    .nav-links a:hover,.nav-links a.active{background:var(--berry-soft);color:var(--berry-dark)}
    .nav-action,.btn-primary{background:var(--berry);color:#fff;padding:12px 18px;border-radius:11px;font-weight:700;display:inline-flex;align-items:center;justify-content:center;gap:8px;transition:.2s;box-shadow:0 8px 18px rgba(168,61,114,.18)}
    .nav-action:hover,.btn-primary:hover{background:var(--berry-dark);transform:translateY(-2px);color:#fff}
    .menu-toggle{display:none;background:var(--berry-soft);color:var(--berry);width:42px;height:42px;border-radius:11px;font-size:20px}
    .page-hero{padding:74px 0 64px;background:linear-gradient(135deg,#fffdfd 0%,#fff5f7 62%,#f1eaf4 100%)}
    .crumbs{font-size:13px;color:var(--muted);margin-bottom:22px}
    .crumbs a{color:var(--berry);font-weight:700}
    .hero-layout{display:grid;grid-template-columns:1.15fr .85fr;gap:60px;align-items:end}
    .eyebrow,.section-kicker{font-size:13px;letter-spacing:1.5px;color:var(--berry);font-weight:800}
    h1{font-size:clamp(34px,5vw,58px);line-height:1.2;letter-spacing:-1.8px;margin:14px 0 20px}
    .hero-copy{max-width:700px;color:var(--muted);font-size:17px}
    .hero-note{display:flex;gap:22px;flex-wrap:wrap;margin-top:25px;color:var(--muted);font-size:13px}
    .hero-note span{display:flex;align-items:center;gap:7px}.hero-note i{width:8px;height:8px;background:var(--mint);border-radius:50%}
    .summary-card{background:#fff;border:1px solid var(--line);border-radius:22px;padding:25px;box-shadow:var(--shadow)}
    .summary-card strong{display:block;font-size:30px;color:var(--berry-dark);line-height:1.2}
    .summary-card p{margin:9px 0 0;color:var(--muted);font-size:13px}
    .filter-bar{padding:24px 0;background:#fff;border-bottom:1px solid var(--line)}
    .filter-inner{display:flex;align-items:center;gap:10px;flex-wrap:wrap}
    .filter-label{font-weight:800;margin-right:6px}
    .tag{display:inline-flex;align-items:center;background:var(--berry-soft);color:var(--berry-dark);padding:5px 12px;border-radius:30px;font-size:12px;font-weight:700}
    .tag.mint{background:var(--mint-soft);color:#237c72}.tag.amber{background:#fbf2df;color:#916323}
    .section{padding:78px 0}.section.alt{background:var(--lavender)}
    .section-head{display:flex;align-items:end;justify-content:space-between;gap:25px;margin-bottom:30px}
    .section-head h2{font-size:31px;line-height:1.3;letter-spacing:-1px;margin:8px 0 0}
    .section-head p{color:var(--muted);max-width:520px;margin:0}
    .content-layout{display:grid;grid-template-columns:minmax(0,1fr) 310px;gap:28px;align-items:start}
    .news-list{display:grid;gap:14px}
    .news-card{background:#fff;border:1px solid var(--line);border-radius:18px;padding:23px;transition:.22s}
    .news-card:hover{transform:translateY(-3px);border-color:#d9a9bf;box-shadow:var(--shadow)}
    .card-meta{display:flex;justify-content:space-between;gap:15px;align-items:center;color:var(--muted);font-size:12px;margin-bottom:10px}
    .news-card h3{font-size:19px;line-height:1.45;margin:0 0 8px;color:var(--ink)}
    .news-card h3 a:hover{color:var(--berry)}
    .news-card p{font-size:14px;color:var(--muted);margin:0;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
    .read-link{display:inline-block;color:var(--berry);font-weight:800;font-size:13px;margin-top:15px}
    .read-link:hover{text-decoration:underline}
    .side-card{background:var(--rose);border:1px solid #f1dce5;border-radius:19px;padding:23px;position:sticky;top:105px}
    .side-card h3{font-size:20px;margin:0 0 15px}.side-list{list-style:none;padding:0;margin:0}
    .side-list li{padding:14px 0;border-bottom:1px solid #ecd6df}.side-list li:last-child{border:0}
    .side-list a{font-weight:700;font-size:14px}.side-list a:hover{color:var(--berry)}
    .side-list small{display:block;color:var(--muted);font-size:11px;margin-top:3px}
    .empty-state{padding:45px 25px;text-align:center;border:1px dashed #d9bdcc;border-radius:18px;background:#fff;color:var(--muted)}
    .mobile-panel{display:grid;grid-template-columns:1fr 250px;gap:35px;align-items:center;background:var(--berry);color:#fff;border-radius:24px;padding:35px 40px;overflow:hidden}
    .mobile-panel h2{font-size:29px;line-height:1.35;margin:8px 0 12px}.mobile-panel p{color:#f7dce9;max-width:620px}
    .mobile-points{display:flex;flex-wrap:wrap;gap:10px;margin:20px 0}.mobile-points span{padding:7px 12px;border:1px solid rgba(255,255,255,.25);border-radius:20px;font-size:12px}
    .qr-box{background:#fff;color:var(--ink);border-radius:17px;padding:20px;text-align:center}.qr-placeholder{height:130px;width:130px;margin:auto;background:repeating-linear-gradient(45deg,#29232b 0 5px,#fff 5px 10px);border:8px solid #fff;outline:1px solid var(--line)}
    .qr-box small{display:block;color:var(--muted);margin-top:12px}
    .guide-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}.guide-card{background:#fff;border:1px solid var(--line);border-radius:17px;padding:23px}
    .step-no{color:var(--berry);font-size:25px;font-weight:800}.guide-card h3{font-size:17px;margin:10px 0 6px}.guide-card p{font-size:13px;color:var(--muted);margin:0}
    .faq-list{max-width:850px;margin:auto}.faq-item{background:#fff;border:1px solid var(--line);border-radius:14px;margin-bottom:11px;overflow:hidden}
    .faq-item summary{padding:18px 21px;font-weight:800;cursor:pointer;list-style:none}.faq-item summary::-webkit-details-marker{display:none}.faq-item summary:after{content:"＋";float:right;color:var(--berry)}
    .faq-item[open] summary:after{content:"−"}.faq-answer{padding:0 21px 19px;color:var(--muted);font-size:14px}
    .cta{padding:64px 0;background:var(--rose)}.cta-box{display:flex;justify-content:space-between;align-items:center;gap:25px}.cta h2{font-size:30px;margin:0 0 8px}.cta p{color:var(--muted);margin:0}
    .site-footer{background:#2f2630;color:#eee4ec;padding:54px 0 22px}.footer-grid{display:grid;grid-template-columns:1.5fr repeat(3,1fr);gap:35px;padding-bottom:40px}
    .footer-logo{color:#fff}.footer-brand p{color:#bcaeba;font-size:13px;margin-top:18px}.footer-col h3{font-size:15px;margin:0 0 15px;color:#fff}.footer-col a{display:block;color:#bcaeba;font-size:13px;margin:9px 0}.footer-col a:hover{color:#fff}
    .footer-bottom{border-top:1px solid rgba(255,255,255,.12);padding-top:20px;display:flex;justify-content:space-between;gap:15px;flex-wrap:wrap;color:#bcaeba;font-size:12px}.footer-legal{display:flex;gap:15px;flex-wrap:wrap}.footer-legal a:hover{color:#fff}
    @media(max-width:992px){.nav-links{gap:0}.nav-links a{padding:8px 8px}.hero-layout{gap:30px}.content-layout{grid-template-columns:1fr}.side-card{position:static}.mobile-panel{grid-template-columns:1fr 210px}.footer-grid{grid-template-columns:1.3fr repeat(3,1fr)}}
    @media(max-width:768px){.container{width:min(var(--container),calc(100% - 32px))}.site-header,.nav-wrap{height:68px}.nav-links{display:none;position:absolute;left:16px;right:16px;top:76px;background:#fff;border:1px solid var(--line);border-radius:16px;padding:10px;box-shadow:var(--shadow);flex-direction:column;align-items:stretch}.nav-links.open{display:flex}.nav-links a{padding:12px 14px}.nav-action{display:none}.menu-toggle{display:block}.hero-layout{grid-template-columns:1fr}.page-hero{padding:50px 0}.section{padding:55px 0}.section-head{display:block}.section-head p{margin-top:12px}.mobile-panel{grid-template-columns:1fr;padding:28px}.guide-grid{grid-template-columns:1fr}.cta-box{display:block}.cta .btn-primary{margin-top:20px}.footer-grid{grid-template-columns:1fr 1fr;gap:25px}}
    @media(max-width:520px){h1{font-size:35px}.hero-copy{font-size:15px}.summary-card strong{font-size:26px}.card-meta{align-items:flex-start;flex-direction:column;gap:7px}.news-card{padding:19px}.footer-grid{grid-template-columns:1fr}.footer-bottom{display:block}.footer-legal{margin-top:12px}}

/* roulang page: category3 */
:root{
      --berry:#a83d72;--berry-dark:#7e2857;--berry-soft:#f8e9f0;
      --mint:#35a99a;--mint-soft:#e4f5f1;--amber:#b98132;
      --ink:#29232b;--muted:#766c77;--line:#e8dfe7;--paper:#fffdfd;
      --lavender:#f5f0f6;--rose:#fff5f7;--radius:20px;
      --shadow:0 14px 40px rgba(72,35,61,.09);--container:1200px;
    }
    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{margin:0;background:var(--paper);color:var(--ink);font-family:"Noto Sans SC","Microsoft YaHei",Arial,sans-serif;font-size:15px;line-height:1.75}
    a{color:inherit;text-decoration:none}
    a:focus-visible,button:focus-visible{outline:3px solid rgba(53,169,154,.45);outline-offset:3px}
    img{max-width:100%;display:block}
    button,input,textarea,select{font:inherit}
    button{cursor:pointer;border:0}
    .container{width:min(var(--container),calc(100% - 48px));margin:auto}
    .site-header{height:78px;background:rgba(255,253,253,.96);border-bottom:1px solid var(--line);position:sticky;top:0;z-index:20;backdrop-filter:blur(12px)}
    .nav-wrap{height:78px;display:flex;align-items:center;justify-content:space-between;gap:28px}
    .logo{display:flex;align-items:center;gap:11px;font-weight:800;color:var(--berry);font-size:18px;letter-spacing:-.4px;white-space:nowrap}
    .logo-mark{width:36px;height:36px;border-radius:12px;background:var(--berry);color:#fff;display:grid;place-items:center;font-weight:800;font-size:16px;box-shadow:0 7px 16px rgba(168,61,114,.25)}
    .nav-links{display:flex;align-items:center;gap:5px}
    .nav-links a{padding:9px 13px;border-radius:10px;color:#5f555f;font-size:14px;transition:.2s}
    .nav-links a:hover,.nav-links a.active{background:var(--berry-soft);color:var(--berry-dark)}
    .nav-action,.btn-primary{background:var(--berry);color:#fff;padding:12px 18px;border-radius:11px;font-weight:700;display:inline-flex;align-items:center;justify-content:center;gap:8px;transition:.2s;box-shadow:0 8px 18px rgba(168,61,114,.18)}
    .nav-action:hover,.btn-primary:hover{background:var(--berry-dark);transform:translateY(-2px)}
    .btn-secondary{border:1px solid #dcb8ca;color:var(--berry-dark);background:#fff;padding:11px 18px;border-radius:11px;font-weight:700;transition:.2s;display:inline-flex;align-items:center;justify-content:center}
    .btn-secondary:hover{background:var(--berry-soft);transform:translateY(-2px)}
    .menu-toggle{display:none;background:var(--berry-soft);color:var(--berry);width:42px;height:42px;border-radius:11px;font-size:20px}
    .page-intro{padding:70px 0 62px;background:linear-gradient(135deg,#fffdfd 0%,#fff5f7 58%,#f1eaf4 100%)}
    .breadcrumb{display:flex;gap:9px;align-items:center;color:var(--muted);font-size:13px;margin-bottom:22px}
    .breadcrumb a{color:var(--berry)}
    .intro-grid{display:grid;grid-template-columns:1.15fr .85fr;gap:55px;align-items:end}
    .eyebrow,.section-kicker{color:var(--berry);font-size:13px;font-weight:800;letter-spacing:1.5px}
    h1{font-size:clamp(34px,5vw,60px);line-height:1.2;letter-spacing:-2px;margin:14px 0 20px}
    .intro-copy{font-size:17px;color:var(--muted);max-width:690px}
    .intro-meta{display:flex;gap:10px;flex-wrap:wrap;margin-top:24px}
    .tag{display:inline-flex;align-items:center;background:var(--berry-soft);color:var(--berry-dark);padding:4px 11px;border-radius:30px;font-size:12px;font-weight:700}
    .intro-card{background:#fff;border:1px solid var(--line);border-radius:22px;padding:25px;box-shadow:var(--shadow)}
    .intro-card strong{font-size:30px;color:var(--berry);display:block;line-height:1.2}
    .intro-card p{color:var(--muted);font-size:13px;margin:8px 0 0}
    .section{padding:78px 0}
    .section.alt{background:var(--lavender)}
    .section-head{display:flex;align-items:end;justify-content:space-between;gap:25px;margin-bottom:30px}
    .section-head h2{font-size:32px;line-height:1.25;letter-spacing:-1px;margin:8px 0 0}
    .section-head p{color:var(--muted);max-width:550px;margin:0}
    .text-link{color:var(--berry);font-weight:700;white-space:nowrap}
    .text-link:hover{text-decoration:underline}
    .news-layout{display:grid;grid-template-columns:1.3fr .7fr;gap:22px}
    .news-list{display:grid;gap:14px}
    .news-card{background:#fff;border:1px solid var(--line);border-radius:17px;padding:22px;transition:.2s}
    .news-card:hover{box-shadow:var(--shadow);border-color:#d9a9bf;transform:translateY(-3px)}
    .card-meta{display:flex;justify-content:space-between;gap:12px;color:var(--muted);font-size:12px;margin-bottom:10px}
    .news-card h3{font-size:19px;line-height:1.45;margin:0 0 7px}
    .news-card p{color:var(--muted);font-size:13px;margin:0;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
    .empty-state{border:1px dashed #d9c5d2;background:#fff;border-radius:18px;padding:48px 25px;text-align:center;color:var(--muted)}
    .empty-state strong{color:var(--berry-dark);display:block;margin-bottom:6px}
    .side-panel{background:var(--rose);border:1px solid #f1dce5;border-radius:20px;padding:26px}
    .side-panel h3{margin:0 0 14px;font-size:20px}
    .side-panel ul{list-style:none;padding:0;margin:0}
    .side-panel li{padding:13px 0;border-bottom:1px solid #edd9e2;color:var(--muted)}
    .side-panel li:last-child{border:0}
    .side-panel li::before{content:"✓";color:var(--mint);font-weight:800;margin-right:9px}
    .mobile-showcase{display:grid;grid-template-columns:.85fr 1.15fr;gap:45px;align-items:center}
    .phone-art{min-height:370px;background:#eadce8;border-radius:28px;display:grid;place-items:center;position:relative;overflow:hidden}
    .phone-art::before{content:"";width:210px;height:350px;background:#29232b;border:8px solid #fff;border-radius:30px;box-shadow:0 18px 35px rgba(65,35,57,.2)}
    .phone-screen{position:absolute;width:188px;height:315px;background:linear-gradient(#fff5f7,#f8e9f0);border-radius:19px;padding:27px 15px;color:var(--berry-dark)}
    .phone-screen b{display:block;font-size:16px;margin-bottom:14px}
    .screen-line{height:48px;background:#fff;border-radius:10px;margin:9px 0;padding:12px;font-size:11px;border:1px solid #f1dce5}
    .feature-list{list-style:none;padding:0;margin:24px 0;display:grid;gap:14px}
    .feature-list li{display:flex;gap:12px;align-items:flex-start}
    .feature-list li::before{content:"●";color:var(--mint);font-size:13px;margin-top:2px}
    .steps{display:grid;grid-template-columns:repeat(4,1fr);gap:14px}
    .step{background:#fff;border:1px solid var(--line);border-radius:17px;padding:22px;min-height:160px}
    .step-number{color:var(--berry);font-size:13px;font-weight:800;letter-spacing:1px}
    .step h3{font-size:17px;margin:12px 0 7px}
    .step p{color:var(--muted);font-size:13px;margin:0}
    .download-panel{background:var(--berry);color:#fff;border-radius:24px;padding:34px;display:grid;grid-template-columns:1fr auto;gap:30px;align-items:center}
    .download-panel h2{font-size:30px;margin:8px 0 12px}
    .download-panel p{color:#f8dce9;margin:0;max-width:620px}
    .download-box{background:#fff;color:var(--ink);border-radius:16px;padding:15px;text-align:center;min-width:150px}
    .qr-code{width:104px;height:104px;margin:0 auto 9px;background:repeating-linear-gradient(45deg,#29232b 0 4px,#fff 4px 8px);border:8px solid #fff;outline:1px solid var(--line)}
    .download-box small{color:var(--muted);font-size:11px}
    .faq-grid{display:grid;grid-template-columns:1fr 1fr;gap:14px}
    details{background:#fff;border:1px solid var(--line);border-radius:15px;padding:17px 20px}
    details[open]{border-color:#d9a9bf;box-shadow:0 8px 22px rgba(72,35,61,.05)}
    summary{cursor:pointer;font-weight:700;color:var(--ink)}
    details p{color:var(--muted);font-size:14px;margin:12px 0 0}
    .continue{background:var(--rose);text-align:center;padding:60px 20px}
    .continue h2{font-size:30px;margin:0 0 10px}
    .continue p{color:var(--muted);margin:0 auto 24px}
    .site-footer{background:#29232b;color:#eee2e9;padding:55px 0 22px}
    .footer-grid{display:grid;grid-template-columns:1.5fr repeat(3,1fr);gap:35px}
    .footer-logo{color:#f2b6cf;margin-bottom:15px}
    .footer-brand p{color:#bdaeb8;font-size:13px;max-width:260px}
    .footer-col h3{font-size:14px;color:#fff;margin:4px 0 14px}
    .footer-col a{display:block;color:#bdaeb8;font-size:13px;margin:9px 0;transition:.2s}
    .footer-col a:hover{color:#f2b6cf}
    .footer-bottom{border-top:1px solid #493b46;margin-top:42px;padding-top:18px;display:flex;justify-content:space-between;gap:20px;color:#a99aa4;font-size:12px}
    .footer-legal{display:flex;gap:15px;flex-wrap:wrap;justify-content:flex-end}
    .footer-legal a:hover{color:#f2b6cf}
    @media(max-width:992px){
      .nav-links{gap:0}.nav-links a{padding:8px 8px;font-size:13px}
      .intro-grid,.mobile-showcase,.news-layout{grid-template-columns:1fr}
      .steps{grid-template-columns:repeat(2,1fr)}
      .download-panel{grid-template-columns:1fr}
      .download-box{width:170px}
    }
    @media(max-width:768px){
      .container{width:min(var(--container),calc(100% - 32px))}
      .site-header,.nav-wrap{height:68px}
      .nav-links{display:none;position:absolute;top:68px;left:16px;right:16px;background:#fff;border:1px solid var(--line);border-radius:16px;padding:10px;box-shadow:var(--shadow);flex-direction:column;align-items:stretch}
      .nav-links.open{display:flex}
      .nav-links a{padding:12px}
      .nav-action{display:none}.menu-toggle{display:block}
      .page-intro{padding:48px 0}.section{padding:55px 0}
      .section-head{display:block}.section-head p{margin-top:10px}
      .section-head .text-link{display:inline-block;margin-top:15px}
      .faq-grid{grid-template-columns:1fr}
      .footer-grid{grid-template-columns:1fr 1fr;gap:25px}
      .footer-brand{grid-column:1/-1}
      .footer-bottom{display:block}.footer-legal{justify-content:flex-start;margin-top:13px}
    }
    @media(max-width:520px){
      h1{font-size:36px;letter-spacing:-1px}
      .intro-card{padding:20px}.steps{grid-template-columns:1fr}
      .download-panel{padding:25px}.download-panel h2{font-size:25px}
      .footer-grid{grid-template-columns:1fr}
      .footer-brand{grid-column:auto}
      .phone-art{min-height:330px}
    }

/* roulang page: category2 */
:root{--berry:#a83d72;--berry-dark:#7e2857;--berry-soft:#f8e9f0;--mint:#35a99a;--mint-soft:#e4f5f1;--amber:#b98132;--ink:#29232b;--muted:#766c77;--line:#e8dfe7;--paper:#fffdfd;--lavender:#f5f0f6;--rose:#fff5f7;--radius:20px;--shadow:0 14px 40px rgba(72,35,61,.09);--container:1200px}
    *{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:var(--paper);color:var(--ink);font:15px/1.75 "Noto Sans SC","Microsoft YaHei",Arial,sans-serif}a{color:inherit;text-decoration:none}img{display:block;max-width:100%}button,input,textarea,select{font:inherit}button{cursor:pointer;border:0}.container{width:min(var(--container),calc(100% - 48px));margin:auto}
    .site-header{height:78px;background:rgba(255,253,253,.96);border-bottom:1px solid var(--line);position:sticky;top:0;z-index:20;backdrop-filter:blur(12px)}.nav-wrap{height:78px;display:flex;align-items:center;justify-content:space-between;gap:28px}.logo{display:flex;align-items:center;gap:11px;font-weight:800;color:var(--berry);font-size:18px;letter-spacing:-.4px;white-space:nowrap}.logo-mark{width:36px;height:36px;border-radius:12px;background:var(--berry);color:#fff;display:grid;place-items:center;font-weight:800;font-size:16px;box-shadow:0 7px 16px rgba(168,61,114,.25)}.nav-links{display:flex;align-items:center;gap:5px}.nav-links a{padding:9px 13px;border-radius:10px;color:#5f555f;font-size:14px;transition:.2s}.nav-links a:hover,.nav-links a.active{background:var(--berry-soft);color:var(--berry-dark)}.nav-action,.btn-primary{background:var(--berry);color:#fff;padding:12px 18px;border-radius:11px;font-weight:700;display:inline-flex;align-items:center;justify-content:center;gap:8px;transition:.2s;box-shadow:0 8px 18px rgba(168,61,114,.18)}.nav-action:hover,.btn-primary:hover{background:var(--berry-dark);transform:translateY(-2px)}.menu-toggle{display:none;background:var(--berry-soft);color:var(--berry);width:42px;height:42px;border-radius:11px;font-size:20px}
    .page-intro{padding:72px 0 58px;background:linear-gradient(135deg,#fffdfd,#fff5f7 58%,#f1eaf4)}.crumbs{font-size:13px;color:var(--muted);margin-bottom:20px}.crumbs a{color:var(--berry)}.intro-grid{display:grid;grid-template-columns:1fr 330px;gap:70px;align-items:end}.eyebrow,.section-kicker{color:var(--berry);font-size:13px;font-weight:800;letter-spacing:1.4px}.page-intro h1{font-size:clamp(34px,5vw,58px);line-height:1.2;letter-spacing:-1.8px;margin:14px 0 18px}.intro-copy{max-width:700px;color:var(--muted);font-size:17px}.intro-note{border-left:3px solid var(--mint);padding:18px 20px;background:rgba(255,255,255,.7);border-radius:0 16px 16px 0;color:var(--muted)}.intro-note strong{display:block;color:var(--ink);font-size:22px}
    .section{padding:76px 0}.section.alt{background:var(--lavender)}.section-head{display:flex;justify-content:space-between;align-items:end;gap:24px;margin-bottom:28px}.section-head h2{font-size:31px;line-height:1.3;margin:8px 0 0;letter-spacing:-1px}.section-head p{color:var(--muted);max-width:560px;margin:0}.tag-row{display:flex;flex-wrap:wrap;gap:10px}.tag{display:inline-flex;background:var(--berry-soft);color:var(--berry-dark);padding:5px 13px;border-radius:30px;font-size:13px;font-weight:700}.tag.mint{background:var(--mint-soft);color:#237d72}.tag.amber{background:#fbf2df;color:#8d6421}
    .content-layout{display:grid;grid-template-columns:minmax(0,1fr) 310px;gap:28px}.news-list{display:grid;gap:15px}.news-card{background:#fff;border:1px solid var(--line);border-radius:17px;padding:23px 25px;transition:.22s}.news-card:hover{transform:translateY(-3px);box-shadow:var(--shadow);border-color:#d9a9bf}.card-meta{display:flex;justify-content:space-between;gap:12px;color:var(--muted);font-size:12px;margin-bottom:9px}.news-card h3{font-size:19px;line-height:1.45;margin:0 0 8px}.news-card p{color:var(--muted);font-size:14px;margin:0;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}.read-link{display:inline-block;color:var(--berry);font-weight:700;font-size:13px;margin-top:13px}.empty-state{padding:44px 25px;background:#fff;border:1px dashed #d9c5d2;border-radius:17px;text-align:center;color:var(--muted)}
    .side-card,.guide-card,.faq-card{background:#fff;border:1px solid var(--line);border-radius:18px;padding:24px}.side-card h3{font-size:19px;margin:0 0 16px}.side-list{list-style:none;padding:0;margin:0}.side-list li{border-bottom:1px solid var(--line);padding:13px 0}.side-list li:last-child{border:0}.side-list a{font-weight:700;font-size:14px}.side-list a:hover{color:var(--berry)}.side-list small{display:block;color:var(--muted);font-size:12px}
    .mobile-panel{background:var(--berry);color:#fff;border-radius:22px;padding:34px;display:grid;grid-template-columns:1fr 170px 210px;gap:30px;align-items:center;box-shadow:var(--shadow)}.mobile-panel h2{font-size:29px;line-height:1.35;margin:8px 0 12px}.mobile-panel p{color:#f8dce9}.qr-area{height:142px;background:#fff;border-radius:16px;color:var(--ink);display:grid;place-items:center;text-align:center;padding:14px}.qr-code{width:86px;height:86px;background:repeating-linear-gradient(45deg,#29232b 0 4px,#fff 4px 8px);border:6px solid #fff;outline:1px solid #ddd}.qr-area small{color:var(--muted);font-size:11px}.download-info{font-size:13px;color:#f8dce9}.download-info strong{display:block;color:#fff;font-size:18px;margin-bottom:8px}.download-info a{margin-top:15px;background:#fff;color:var(--berry-dark);box-shadow:none}
    .steps{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}.guide-card{position:relative}.step-num{width:34px;height:34px;border-radius:50%;background:var(--mint-soft);color:#237d72;display:grid;place-items:center;font-weight:800;margin-bottom:17px}.guide-card h3{font-size:17px;margin:0 0 6px}.guide-card p{color:var(--muted);font-size:13px;margin:0}
    .faq-list{display:grid;gap:11px;max-width:850px}.faq-card{padding:0;overflow:hidden}.faq-card summary{padding:19px 22px;font-weight:700;cursor:pointer;list-style:none}.faq-card summary::-webkit-details-marker{display:none}.faq-card summary:after{content:"＋";float:right;color:var(--berry);font-size:20px}.faq-card[open] summary:after{content:"－"}.faq-answer{border-top:1px solid var(--line);padding:15px 22px;color:var(--muted);font-size:14px}
    .closing{padding:54px 0;background:var(--rose)}.closing-box{display:flex;justify-content:space-between;align-items:center;gap:25px}.closing h2{margin:0 0 7px;font-size:29px}.closing p{margin:0;color:var(--muted)}.btn-secondary{border:1px solid #dcb8ca;color:var(--berry-dark);background:#fff;padding:11px 18px;border-radius:11px;font-weight:700;transition:.2s}.btn-secondary:hover{background:var(--berry-soft);transform:translateY(-2px)}:focus-visible{outline:3px solid #72cfc4;outline-offset:3px}
    .site-footer{background:#302630;color:#f7eef5;padding:55px 0 22px}.footer-grid{display:grid;grid-template-columns:1.5fr repeat(3,1fr);gap:35px}.footer-logo{color:#fff}.footer-brand p{color:#cbbdc9;font-size:13px;margin-top:17px}.footer-col h3{font-size:14px;margin:0 0 14px;color:#fff}.footer-col a{display:block;color:#cbbdc9;font-size:13px;margin:8px 0}.footer-col a:hover{color:#fff}.footer-bottom{border-top:1px solid #514550;margin-top:40px;padding-top:20px;display:flex;justify-content:space-between;gap:20px;color:#bcaebb;font-size:12px}.footer-legal{display:flex;flex-wrap:wrap;gap:14px}.footer-legal a:hover{color:#fff}
    @media(max-width:992px){.nav-links{gap:0}.nav-links a{padding:8px}.intro-grid{gap:35px}.content-layout{grid-template-columns:1fr}.mobile-panel{grid-template-columns:1fr 160px 190px}.footer-grid{grid-template-columns:1.3fr repeat(3,1fr)}}
    @media(max-width:768px){.container{width:min(100% - 32px,var(--container))}.site-header,.nav-wrap{height:70px}.nav-wrap{gap:12px}.nav-action{display:none}.menu-toggle{display:block}.nav-links{display:none;position:absolute;left:16px;right:16px;top:78px;padding:10px;background:#fff;border:1px solid var(--line);border-radius:15px;box-shadow:var(--shadow);flex-direction:column;align-items:stretch}.nav-links.open{display:flex}.nav-links a{padding:12px}.page-intro{padding:50px 0 42px}.intro-grid{grid-template-columns:1fr}.intro-note{max-width:360px}.section{padding:56px 0}.section-head,.closing-box{display:block}.section-head p{margin-top:12px}.mobile-panel{grid-template-columns:1fr;padding:27px}.qr-area{width:160px}.steps{grid-template-columns:1fr}.footer-grid{grid-template-columns:1fr 1fr}.footer-brand{grid-column:1/-1}.footer-bottom{display:block}.footer-legal{margin-top:12px}}
    @media(max-width:480px){.logo{font-size:15px}.logo-mark{width:32px;height:32px}.page-intro h1{font-size:34px}.card-meta{align-items:flex-start;flex-direction:column;gap:3px}.news-card{padding:19px}.footer-grid{grid-template-columns:1fr}.closing .btn-secondary{margin-top:20px}}

/* roulang page: category4 */
:root{
      --berry:#a83d72;
      --berry-dark:#7e2857;
      --berry-soft:#f8e9f0;
      --mint:#35a99a;
      --mint-soft:#e4f5f1;
      --amber:#b98132;
      --ink:#29232b;
      --muted:#766c77;
      --line:#e8dfe7;
      --paper:#fffdfd;
      --lavender:#f5f0f6;
      --rose:#fff5f7;
      --radius:20px;
      --shadow:0 14px 40px rgba(72,35,61,.09);
      --container:1200px;
    }
    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{margin:0;background:var(--paper);color:var(--ink);font-family:"Noto Sans SC","Microsoft YaHei",Arial,sans-serif;font-size:15px;line-height:1.75}
    a{color:inherit;text-decoration:none}
    a:focus-visible,button:focus-visible,input:focus-visible,textarea:focus-visible{outline:3px solid rgba(53,169,154,.45);outline-offset:3px}
    img{display:block;max-width:100%}
    button,input,textarea,select{font:inherit}
    button{border:0;cursor:pointer}
    .container{width:min(var(--container),calc(100% - 48px));margin:0 auto}
    .site-header{height:78px;background:rgba(255,253,253,.96);border-bottom:1px solid var(--line);position:sticky;top:0;z-index:20;backdrop-filter:blur(12px)}
    .nav-wrap{height:78px;display:flex;align-items:center;justify-content:space-between;gap:28px}
    .logo{display:flex;align-items:center;gap:11px;font-weight:800;color:var(--berry);font-size:18px;letter-spacing:-.4px;white-space:nowrap}
    .logo-mark{width:36px;height:36px;border-radius:12px;background:var(--berry);color:#fff;display:grid;place-items:center;font-weight:800;font-size:16px;box-shadow:0 7px 16px rgba(168,61,114,.25)}
    .nav-links{display:flex;align-items:center;gap:5px}
    .nav-links a{padding:9px 13px;border-radius:10px;color:#5f555f;font-size:14px;transition:.2s}
    .nav-links a:hover,.nav-links a.active{background:var(--berry-soft);color:var(--berry-dark)}
    .nav-action,.btn-primary{background:var(--berry);color:#fff;padding:12px 18px;border-radius:11px;font-weight:700;display:inline-flex;align-items:center;justify-content:center;gap:8px;transition:.2s;box-shadow:0 8px 18px rgba(168,61,114,.18)}
    .nav-action:hover,.btn-primary:hover{background:var(--berry-dark);transform:translateY(-2px);color:#fff}
    .menu-toggle{display:none;background:var(--berry-soft);color:var(--berry);width:42px;height:42px;border-radius:11px;font-size:20px}
    .page-hero{padding:68px 0 60px;background:linear-gradient(135deg,#fffdfd 0%,#fff5f7 58%,#f1eaf4 100%)}
    .crumbs{display:flex;gap:9px;align-items:center;color:var(--muted);font-size:13px;margin-bottom:23px}
    .crumbs a:hover{color:var(--berry)}
    .crumbs span{color:#b9aeba}
    .hero-layout{display:grid;grid-template-columns:1.1fr .9fr;gap:58px;align-items:center}
    .eyebrow,.section-kicker{color:var(--berry);font-size:13px;font-weight:800;letter-spacing:1.3px}
    h1{font-size:clamp(34px,5vw,58px);line-height:1.2;letter-spacing:-2px;margin:14px 0 20px}
    h1 em{font-style:normal;color:var(--berry)}
    .hero-copy{max-width:670px;color:var(--muted);font-size:17px}
    .hero-note{display:flex;flex-wrap:wrap;gap:22px;margin-top:25px;color:var(--muted);font-size:13px}
    .hero-note i{display:inline-block;width:8px;height:8px;background:var(--mint);border-radius:50%;margin-right:7px}
    .download-preview{background:var(--berry);border-radius:26px;padding:30px;color:#fff;min-height:275px;box-shadow:var(--shadow);position:relative;overflow:hidden}
    .download-preview:after{content:"";position:absolute;width:190px;height:190px;border:1px solid rgba(255,255,255,.23);border-radius:50%;right:-60px;top:-55px}
    .preview-top{display:flex;justify-content:space-between;align-items:center;position:relative;z-index:1}
    .preview-top strong{font-size:18px}
    .version-badge{background:rgba(255,255,255,.16);border:1px solid rgba(255,255,255,.25);padding:5px 10px;border-radius:20px;font-size:12px}
    .qr-box{width:112px;height:112px;background:#fff;border-radius:13px;margin-top:35px;display:grid;place-items:center;color:var(--berry);font-size:13px;text-align:center;position:relative;z-index:1}
    .qr-box span{display:block;border:2px dashed #d8a6bd;padding:10px 7px;border-radius:8px}
    .preview-bottom{position:absolute;right:28px;bottom:27px;max-width:190px;font-size:13px;color:#f7dce9}
    .section{padding:80px 0}
    .section.alt{background:var(--lavender)}
    .section-head{display:flex;justify-content:space-between;align-items:end;gap:25px;margin-bottom:30px}
    .section-head h2{font-size:31px;line-height:1.28;letter-spacing:-1px;margin:8px 0 0}
    .section-head p{max-width:540px;color:var(--muted);margin:0}
    .filter-row{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:24px}
    .tag{display:inline-flex;align-items:center;background:var(--berry-soft);color:var(--berry-dark);padding:5px 12px;border-radius:30px;font-size:12px;font-weight:700}
    .tag.mint{background:var(--mint-soft);color:#287c72}
    .news-list{display:grid;grid-template-columns:repeat(2,1fr);gap:16px}
    .news-card{background:#fff;border:1px solid var(--line);border-radius:17px;padding:23px;min-height:205px;display:flex;flex-direction:column;transition:.22s}
    .news-card:hover{box-shadow:var(--shadow);border-color:#d9a9bf;transform:translateY(-3px)}
    .card-meta{display:flex;justify-content:space-between;gap:12px;color:var(--muted);font-size:12px;margin-bottom:13px}
    .news-card h3{font-size:18px;line-height:1.45;margin:0 0 9px}
    .news-card p{color:var(--muted);font-size:13px;margin:0;display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden}
    .read-link{color:var(--berry);font-weight:700;font-size:13px;margin-top:auto;padding-top:15px}
    .read-link:hover{text-decoration:underline}
    .empty-state{grid-column:1/-1;background:#fff;border:1px dashed #d8c6d3;border-radius:18px;padding:35px;text-align:center;color:var(--muted)}
    .support-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:20px}
    .support-card{border:1px solid var(--line);border-radius:20px;background:#fff;padding:28px}
    .support-card.soft{background:var(--rose)}
    .support-card h3{font-size:21px;margin:0 0 11px}
    .support-card p{color:var(--muted);margin:0 0 18px}
    .feature-list{list-style:none;padding:0;margin:0;display:grid;gap:13px}
    .feature-list li{display:flex;gap:12px;align-items:flex-start}
    .feature-list li:before{content:"✓";color:var(--mint);font-weight:800;background:var(--mint-soft);width:25px;height:25px;border-radius:8px;text-align:center;line-height:25px;flex:0 0 25px}
    .steps{display:grid;grid-template-columns:repeat(4,1fr);gap:14px}
    .step{background:#fff;border:1px solid var(--line);border-radius:17px;padding:22px;min-height:170px}
    .step-number{color:var(--berry);font-weight:800;font-size:13px;letter-spacing:1px}
    .step h3{font-size:17px;margin:13px 0 7px}
    .step p{color:var(--muted);font-size:13px;margin:0}
    .version-table{background:#fff;border:1px solid var(--line);border-radius:18px;overflow:hidden}
    .version-row{display:grid;grid-template-columns:130px 130px 1fr 120px;gap:20px;align-items:center;padding:18px 23px;border-bottom:1px solid var(--line)}
    .version-row:last-child{border-bottom:0}
    .version-row strong{color:var(--berry-dark)}
    .version-row span{font-size:13px;color:var(--muted)}
    .faq-list{max-width:850px;margin:auto}
    details{background:#fff;border:1px solid var(--line);border-radius:14px;margin-bottom:12px;padding:0 20px}
    summary{cursor:pointer;font-weight:700;padding:18px 3px;list-style:none}
    summary::-webkit-details-marker{display:none}
    summary:after{content:"＋";float:right;color:var(--berry);font-size:20px}
    details[open] summary:after{content:"−"}
    details p{color:var(--muted);font-size:14px;margin:0 3px 18px}
    .cta{padding:54px 0;background:var(--berry-soft)}
    .cta-box{display:flex;align-items:center;justify-content:space-between;gap:25px}
    .cta h2{font-size:30px;margin:0 0 8px}
    .cta p{color:var(--muted);margin:0}
    .site-footer{background:#302630;color:#eee0e9;padding:58px 0 24px}
    .footer-grid{display:grid;grid-template-columns:1.5fr repeat(3,1fr);gap:35px}
    .footer-logo{color:#fff}
    .footer-brand p{color:#bdaeba;font-size:13px;max-width:250px;margin-top:18px}
    .footer-col{display:flex;flex-direction:column;gap:9px}
    .footer-col h3{font-size:14px;color:#fff;margin:0 0 8px}
    .footer-col a{font-size:13px;color:#bdaeba;transition:.2s}
    .footer-col a:hover{color:#fff}
    .footer-bottom{border-top:1px solid rgba(255,255,255,.12);margin-top:42px;padding-top:20px;display:flex;justify-content:space-between;gap:20px;color:#a997a5;font-size:12px}
    .footer-legal{display:flex;gap:16px;flex-wrap:wrap;justify-content:flex-end}
    .footer-legal a:hover{color:#fff}
    @media(max-width:992px){
      .nav-links{gap:0}.nav-links a{padding:8px 8px;font-size:13px}.nav-action{padding:10px 13px}
      .hero-layout,.support-grid{grid-template-columns:1fr;gap:30px}
      .steps{grid-template-columns:repeat(2,1fr)}
      .footer-grid{grid-template-columns:1.3fr repeat(3,1fr);gap:20px}
    }
    @media(max-width:768px){
      .container{width:min(var(--container),calc(100% - 32px))}
      .site-header,.nav-wrap{height:68px}.nav-wrap{gap:12px}
      .nav-links{display:none;position:absolute;left:16px;right:16px;top:76px;background:#fff;border:1px solid var(--line);border-radius:16px;padding:10px;box-shadow:var(--shadow);flex-direction:column;align-items:stretch}
      .nav-links.open{display:flex}.nav-links a{padding:12px 14px}
      .nav-action{margin-left:auto;font-size:13px}.menu-toggle{display:block}
      .page-hero{padding:44px 0 42px}.hero-layout{gap:25px}h1{letter-spacing:-1px}
      .section{padding:57px 0}.section-head{display:block}.section-head h2{font-size:27px}.section-head p{margin-top:10px}
      .news-list{grid-template-columns:1fr}.version-row{grid-template-columns:1fr 1fr;gap:4px 14px}
      .version-row span:last-child{grid-column:1/-1}.cta-box{display:block}.cta .btn-primary{margin-top:20px}
      .footer-grid{grid-template-columns:1fr 1fr}.footer-brand{grid-column:1/-1}
      .footer-bottom{display:block}.footer-legal{justify-content:flex-start;margin-top:13px}
    }
    @media(max-width:480px){
      .logo{font-size:15px;gap:8px}.logo-mark{width:32px;height:32px;border-radius:10px}
      .nav-action{display:none}.hero-copy{font-size:15px}.download-preview{padding:23px;min-height:255px}
      .steps{grid-template-columns:1fr}.support-card{padding:22px}.section-head h2{font-size:25px}
      .footer-grid{grid-template-columns:1fr}.footer-brand{grid-column:auto}
    }