/* roulang page: index */
:root{
      --ink:#211426;
      --ink-2:#34223b;
      --muted:#766b7d;
      --soft:#f7f2f5;
      --mist:#efe7ef;
      --panel:#fffafa;
      --panel-2:#fbf6f2;
      --primary:#44204f;
      --primary-deep:#2a1232;
      --accent:#d49a72;
      --accent-2:#f2d5bd;
      --line:#e6dbe5;
      --line-strong:#d7c6d5;
      --white:#ffffff;
      --shadow:0 22px 60px rgba(64,38,75,.12);
      --shadow-soft:0 14px 36px rgba(64,38,75,.09);
      --radius-xl:30px;
      --radius-lg:24px;
      --radius-md:18px;
      --radius-sm:12px;
      --container:1200px;
      --ease:180ms ease;
    }
    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{
      margin:0;
      font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei",Arial,sans-serif;
      color:var(--ink);
      background:
        radial-gradient(circle at 12% 6%, rgba(212,154,114,.18), transparent 28%),
        radial-gradient(circle at 86% 12%, rgba(68,32,79,.12), transparent 30%),
        linear-gradient(180deg,#fffafa 0%,#f7f2f5 48%,#fffafa 100%);
      line-height:1.75;
      overflow-x:hidden;
    }
    a{color:inherit;text-decoration:none}
    img{max-width:100%;display:block}
    button,input{font:inherit}
    button{border:0;cursor:pointer}
    :focus-visible{outline:3px solid rgba(212,154,114,.55);outline-offset:3px}
    .container{width:min(var(--container),calc(100% - 40px));margin:0 auto}
    .site-header{
      position:sticky;
      top:0;
      z-index:50;
      background:rgba(255,250,250,.88);
      backdrop-filter:blur(18px);
      border-bottom:1px solid rgba(230,219,229,.88);
    }
    .nav-wrap{
      height:76px;
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:24px;
    }
    .brand{
      display:flex;
      align-items:center;
      gap:12px;
      min-width:0;
      font-weight:800;
      letter-spacing:-.02em;
      color:var(--primary-deep);
    }
    .brand-mark{
      width:42px;
      height:42px;
      border-radius:16px;
      background:
        radial-gradient(circle at 32% 28%, #fff4e8 0 20%, transparent 21%),
        linear-gradient(135deg,var(--primary),var(--primary-deep));
      box-shadow:0 12px 28px rgba(68,32,79,.2);
      position:relative;
      flex:0 0 auto;
    }
    .brand-mark:after{
      content:"";
      position:absolute;
      left:12px;
      right:12px;
      bottom:10px;
      height:4px;
      border-radius:999px;
      background:var(--accent);
    }
    .brand-text{
      display:flex;
      flex-direction:column;
      line-height:1.15;
    }
    .brand-text strong{
      max-width:300px;
      white-space:nowrap;
      overflow:hidden;
      text-overflow:ellipsis;
      font-size:16px;
    }
    .brand-text span{
      font-size:12px;
      color:var(--muted);
      font-weight:600;
      margin-top:3px;
    }
    .main-nav{
      display:flex;
      align-items:center;
      gap:8px;
      padding:6px;
      border:1px solid var(--line);
      border-radius:999px;
      background:rgba(255,255,255,.72);
    }
    .main-nav a{
      position:relative;
      padding:9px 15px;
      border-radius:999px;
      font-size:14px;
      font-weight:700;
      color:var(--ink-2);
      transition:background var(--ease),color var(--ease),transform var(--ease);
    }
    .main-nav a:hover,
    .main-nav a.active{
      background:#f5e5d7;
      color:var(--primary-deep);
    }
    .main-nav a:active{transform:translateY(1px)}
    .nav-actions{display:flex;align-items:center;gap:12px}
    .menu-toggle{
      display:none;
      width:44px;
      height:44px;
      border-radius:15px;
      background:var(--primary);
      color:#fff;
      align-items:center;
      justify-content:center;
      box-shadow:var(--shadow-soft);
    }
    .menu-toggle span{
      width:18px;
      height:2px;
      background:#fff;
      position:relative;
      border-radius:999px;
    }
    .menu-toggle span:before,
    .menu-toggle span:after{
      content:"";
      position:absolute;
      left:0;
      width:18px;
      height:2px;
      background:#fff;
      border-radius:999px;
    }
    .menu-toggle span:before{top:-6px}
    .menu-toggle span:after{top:6px}
    .btn{
      display:inline-flex;
      align-items:center;
      justify-content:center;
      gap:8px;
      min-height:46px;
      padding:12px 20px;
      border-radius:999px;
      font-weight:800;
      line-height:1;
      transition:transform var(--ease),box-shadow var(--ease),background var(--ease),border-color var(--ease),color var(--ease);
      border:1px solid transparent;
      white-space:nowrap;
    }
    .btn-primary{
      background:linear-gradient(135deg,var(--primary),var(--primary-deep));
      color:#fff;
      box-shadow:0 15px 34px rgba(68,32,79,.2);
    }
    .btn-primary:hover{
      transform:translateY(-2px);
      box-shadow:0 20px 46px rgba(68,32,79,.28);
      border-color:rgba(242,213,189,.85);
    }
    .btn-secondary{
      background:rgba(255,255,255,.75);
      border-color:var(--line-strong);
      color:var(--primary-deep);
    }
    .btn-secondary:hover{
      transform:translateY(-2px);
      background:#fff5ec;
      border-color:var(--accent);
    }
    .btn:active{transform:translateY(1px) scale(.99)}
    .section{
      padding:86px 0;
      position:relative;
    }
    .section-tight{padding:54px 0}
    .eyebrow{
      display:inline-flex;
      align-items:center;
      gap:8px;
      padding:7px 12px;
      border:1px solid rgba(212,154,114,.42);
      background:rgba(255,245,236,.75);
      color:#7a4d31;
      border-radius:999px;
      font-weight:800;
      font-size:13px;
    }
    .eyebrow:before{
      content:"";
      width:8px;
      height:8px;
      border-radius:50%;
      background:var(--accent);
      box-shadow:0 0 0 5px rgba(212,154,114,.18);
    }
    .hero{
      padding:72px 0 44px;
    }
    .hero-grid{
      display:grid;
      grid-template-columns:minmax(0,1.05fr) minmax(360px,.95fr);
      gap:46px;
      align-items:center;
    }
    .hero-copy{
      position:relative;
      z-index:2;
    }
    h1{
      margin:20px 0 18px;
      font-size:clamp(34px,5vw,58px);
      line-height:1.14;
      letter-spacing:-.055em;
      color:var(--primary-deep);
      max-width:760px;
    }
    .hero-sub{
      margin:0;
      max-width:690px;
      font-size:18px;
      line-height:1.9;
      color:var(--muted);
    }
    .hero-actions{
      display:flex;
      flex-wrap:wrap;
      gap:14px;
      margin-top:30px;
    }
    .reader-note{
      margin-top:26px;
      display:flex;
      flex-wrap:wrap;
      gap:12px;
      color:var(--muted);
      font-size:14px;
    }
    .reader-note span{
      display:inline-flex;
      align-items:center;
      gap:8px;
      padding:8px 12px;
      border-radius:999px;
      background:rgba(255,255,255,.68);
      border:1px solid var(--line);
    }
    .reader-note span:before{
      content:"";
      width:6px;
      height:6px;
      border-radius:50%;
      background:var(--primary);
    }
    .hero-visual{
      position:relative;
      min-height:520px;
    }
    .visual-back{
      position:absolute;
      inset:0 0 54px 28px;
      border-radius:42px;
      background-image:
        linear-gradient(135deg,rgba(42,18,50,.28),rgba(212,154,114,.16)),
        url('/assets/images/backpic/back-1.webp');
      background-size:cover;
      background-position:center;
      box-shadow:var(--shadow);
      overflow:hidden;
    }
    .visual-back:after{
      content:"";
      position:absolute;
      inset:0;
      background:linear-gradient(180deg,rgba(255,250,250,.15),rgba(42,18,50,.22));
    }
    .floating-panel{
      position:absolute;
      left:0;
      bottom:18px;
      width:min(420px,90%);
      padding:24px;
      border-radius:var(--radius-xl);
      background:rgba(255,250,250,.92);
      border:1px solid rgba(255,255,255,.75);
      box-shadow:var(--shadow);
      backdrop-filter:blur(18px);
    }
    .floating-panel .mini-title{
      font-size:15px;
      color:var(--muted);
      margin:0 0 10px;
      font-weight:800;
    }
    .floating-panel strong{
      display:block;
      font-size:24px;
      line-height:1.35;
      color:var(--primary-deep);
      letter-spacing:-.02em;
    }
    .floating-list{
      list-style:none;
      padding:0;
      margin:18px 0 0;
      display:grid;
      gap:10px;
    }
    .floating-list li{
      display:flex;
      align-items:center;
      gap:10px;
      color:var(--muted);
      font-size:14px;
    }
    .floating-list li:before{
      content:"";
      width:24px;
      height:24px;
      border-radius:9px;
      background:linear-gradient(135deg,#fff2e7,#eaddec);
      border:1px solid var(--line);
      flex:0 0 auto;
    }
    .info-strip{
      padding:14px;
      background:rgba(255,255,255,.7);
      border:1px solid var(--line);
      border-radius:var(--radius-xl);
      box-shadow:var(--shadow-soft);
      display:grid;
      grid-template-columns:repeat(4,1fr);
      gap:12px;
    }
    .info-pill{
      padding:18px;
      border-radius:22px;
      background:linear-gradient(180deg,#fff,#fbf6f2);
      border:1px solid rgba(230,219,229,.75);
      min-height:104px;
      transition:transform var(--ease),border-color var(--ease),box-shadow var(--ease);
    }
    .info-pill:hover{
      transform:translateY(-3px);
      border-color:var(--accent);
      box-shadow:0 12px 28px rgba(64,38,75,.08);
    }
    .info-pill b{
      display:block;
      color:var(--primary-deep);
      font-size:20px;
      margin-bottom:4px;
    }
    .info-pill span{
      color:var(--muted);
      font-size:14px;
    }
    .section-head{
      display:flex;
      align-items:flex-end;
      justify-content:space-between;
      gap:28px;
      margin-bottom:34px;
    }
    .section-title{
      margin:12px 0 0;
      font-size:clamp(28px,4vw,40px);
      line-height:1.22;
      letter-spacing:-.035em;
      color:var(--primary-deep);
    }
    .section-desc{
      max-width:560px;
      margin:0;
      color:var(--muted);
      font-size:16px;
      line-height:1.85;
    }
    .feature-layout{
      display:grid;
      grid-template-columns:1.12fr .88fr;
      gap:24px;
      align-items:stretch;
    }
    .feature-major{
      border-radius:var(--radius-xl);
      overflow:hidden;
      background:var(--panel);
      border:1px solid var(--line);
      box-shadow:var(--shadow-soft);
      display:grid;
      grid-template-columns:.92fr 1fr;
      min-height:430px;
    }
    .feature-image{
      min-height:100%;
      background:#eaddec;
      position:relative;
      overflow:hidden;
    }
    .feature-image img{
      width:100%;
      height:100%;
      object-fit:cover;
      filter:saturate(.92) contrast(.96);
    }
    .feature-image:after{
      content:"";
      position:absolute;
      inset:0;
      background:linear-gradient(135deg,rgba(68,32,79,.18),rgba(212,154,114,.18));
    }
    .feature-body{
      padding:34px;
      display:flex;
      flex-direction:column;
      justify-content:space-between;
      gap:28px;
    }
    .badge{
      display:inline-flex;
      width:max-content;
      align-items:center;
      padding:6px 11px;
      border-radius:999px;
      background:#f7e7d9;
      color:#74492f;
      font-size:13px;
      font-weight:800;
      border:1px solid rgba(212,154,114,.35);
    }
    .feature-body h3,
    .small-card h3,
    .scenario-card h3,
    .proof-card h3,
    .update-card h3{
      margin:0;
      color:var(--primary-deep);
      line-height:1.35;
    }
    .feature-body h3{font-size:27px;letter-spacing:-.025em}
    .feature-body p,
    .small-card p,
    .scenario-card p,
    .proof-card p,
    .update-card p{
      margin:0;
      color:var(--muted);
    }
    .feature-points{
      list-style:none;
      margin:0;
      padding:0;
      display:grid;
      gap:12px;
    }
    .feature-points li{
      display:flex;
      gap:10px;
      align-items:flex-start;
      color:var(--ink-2);
      font-weight:650;
    }
    .feature-points li:before{
      content:"";
      width:9px;
      height:9px;
      border-radius:50%;
      background:var(--accent);
      margin-top:10px;
      flex:0 0 auto;
    }
    .small-stack{
      display:grid;
      gap:24px;
    }
    .small-card{
      padding:28px;
      border-radius:var(--radius-lg);
      background:rgba(255,255,255,.76);
      border:1px solid var(--line);
      box-shadow:var(--shadow-soft);
      transition:transform var(--ease),border-color var(--ease),box-shadow var(--ease);
      position:relative;
      overflow:hidden;
    }
    .small-card:before{
      content:attr(data-index);
      position:absolute;
      right:22px;
      top:12px;
      font-size:54px;
      line-height:1;
      font-weight:900;
      color:rgba(68,32,79,.07);
      letter-spacing:-.06em;
    }
    .small-card:hover{
      transform:translateY(-4px);
      border-color:var(--accent);
      box-shadow:var(--shadow);
    }
    .small-card h3{font-size:21px;margin-bottom:10px}
    .scenario{
      background:
        linear-gradient(135deg,rgba(68,32,79,.96),rgba(42,18,50,.96)),
        url('/assets/images/backpic/back-2.jpg') center/cover;
      color:#fff;
      border-radius:42px;
      padding:54px;
      overflow:hidden;
      box-shadow:var(--shadow);
    }
    .scenario .section-title,
    .scenario .section-desc{color:#fff}
    .scenario .section-desc{opacity:.76}
    .scenario-grid{
      display:grid;
      grid-template-columns:repeat(4,1fr);
      gap:16px;
      margin-top:34px;
    }
    .scenario-card{
      padding:24px;
      border-radius:24px;
      background:rgba(255,255,255,.09);
      border:1px solid rgba(255,255,255,.16);
      backdrop-filter:blur(12px);
      min-height:210px;
      transition:background var(--ease),transform var(--ease),border-color var(--ease);
    }
    .scenario-card:hover{
      transform:translateY(-4px);
      background:rgba(255,255,255,.13);
      border-color:rgba(242,213,189,.42);
    }
    .scenario-card .num{
      width:42px;
      height:42px;
      border-radius:15px;
      display:grid;
      place-items:center;
      background:rgba(242,213,189,.18);
      color:#ffe1c8;
      font-weight:900;
      margin-bottom:18px;
    }
    .scenario-card h3{font-size:20px;color:#fff;margin-bottom:10px}
    .scenario-card p{color:rgba(255,255,255,.74);font-size:15px}
    .showcase-grid{
      display:grid;
      grid-template-columns:.85fr 1.15fr;
      gap:26px;
      align-items:center;
    }
    .showcase-media{
      border-radius:36px;
      overflow:hidden;
      border:1px solid var(--line);
      box-shadow:var(--shadow);
      position:relative;
      min-height:430px;
      background:#eaddec;
    }
    .showcase-media img{
      width:100%;
      height:100%;
      min-height:430px;
      object-fit:cover;
    }
    .showcase-media:after{
      content:"";
      position:absolute;
      inset:0;
      background:linear-gradient(180deg,transparent,rgba(42,18,50,.22));
    }
    .showcase-copy{
      display:grid;
      gap:18px;
    }
    .reading-card{
      padding:26px;
      border-radius:24px;
      background:rgba(255,255,255,.8);
      border:1px solid var(--line);
      display:grid;
      grid-template-columns:auto 1fr;
      gap:18px;
      align-items:flex-start;
      transition:transform var(--ease),border-color var(--ease),box-shadow var(--ease);
    }
    .reading-card:hover{
      transform:translateX(4px);
      border-color:var(--accent);
      box-shadow:var(--shadow-soft);
    }
    .reading-icon{
      width:50px;
      height:50px;
      border-radius:18px;
      background:linear-gradient(135deg,var(--primary),#6b3a73);
      box-shadow:0 12px 24px rgba(68,32,79,.16);
      position:relative;
    }
    .reading-icon:after{
      content:"";
      position:absolute;
      inset:14px 12px;
      border-top:3px solid var(--accent-2);
      border-bottom:3px solid var(--accent-2);
    }
    .reading-card h3{
      margin:0 0 6px;
      font-size:20px;
      color:var(--primary-deep);
    }
    .reading-card p{
      margin:0;
      color:var(--muted);
    }
    .updates{
      background:rgba(255,255,255,.58);
      border-top:1px solid rgba(230,219,229,.75);
      border-bottom:1px solid rgba(230,219,229,.75);
    }
    .updates-layout{
      display:grid;
      grid-template-columns:.92fr 1.08fr;
      gap:24px;
      align-items:start;
    }
    .update-card{
      background:var(--panel);
      border:1px solid var(--line);
      border-radius:var(--radius-xl);
      box-shadow:var(--shadow-soft);
      overflow:hidden;
      transition:transform var(--ease),box-shadow var(--ease),border-color var(--ease);
    }
    .update-card:hover{
      transform:translateY(-4px);
      border-color:var(--accent);
      box-shadow:var(--shadow);
    }
    .featured-update .cover{
      height:250px;
      background:#eaddec;
      overflow:hidden;
    }
    .featured-update .cover img{
      width:100%;
      height:100%;
      object-fit:cover;
      transition:transform 320ms ease;
    }
    .featured-update:hover .cover img{transform:scale(1.035)}
    .update-body{padding:28px}
    .meta-row{
      display:flex;
      flex-wrap:wrap;
      align-items:center;
      gap:10px;
      color:var(--muted);
      font-size:13px;
      margin-bottom:14px;
    }
    .meta-dot{
      width:4px;
      height:4px;
      border-radius:50%;
      background:var(--line-strong);
    }
    .cat{
      display:inline-flex;
      align-items:center;
      padding:5px 10px;
      border-radius:999px;
      color:#74492f;
      background:#f8e6d7;
      border:1px solid rgba(212,154,114,.28);
      font-weight:800;
      font-size:12px;
    }
    .update-card h3{
      font-size:24px;
      margin-bottom:12px;
      letter-spacing:-.02em;
    }
    .update-card h3 a{
      background-image:linear-gradient(var(--accent),var(--accent));
      background-size:0 2px;
      background-position:0 100%;
      background-repeat:no-repeat;
      transition:color var(--ease),background-size var(--ease);
    }
    .update-card h3 a:hover{
      color:#7d4a2d;
      background-size:100% 2px;
    }
    .excerpt{
      display:-webkit-box;
      -webkit-line-clamp:3;
      -webkit-box-orient:vertical;
      overflow:hidden;
      line-height:1.75;
    }
    .read-link{
      display:inline-flex;
      align-items:center;
      gap:8px;
      margin-top:20px;
      color:var(--primary-deep);
      font-weight:900;
    }
    .read-link:after{
      content:"→";
      color:var(--accent);
      transition:transform var(--ease);
    }
    .read-link:hover:after{transform:translateX(4px)}
    .update-list{
      display:grid;
      gap:14px;
    }
    .list-item{
      display:grid;
      grid-template-columns:72px 1fr;
      gap:18px;
      padding:18px;
      border-radius:24px;
      background:rgba(255,255,255,.82);
      border:1px solid var(--line);
      transition:transform var(--ease),border-color var(--ease),box-shadow var(--ease),background var(--ease);
    }
    .list-item:hover{
      transform:translateY(-3px);
      border-color:var(--accent);
      background:#fff;
      box-shadow:var(--shadow-soft);
    }
    .date-box{
      height:72px;
      border-radius:20px;
      background:linear-gradient(180deg,#f7e8dc,#efe4ef);
      border:1px solid rgba(212,154,114,.2);
      display:flex;
      align-items:center;
      justify-content:center;
      text-align:center;
      color:var(--primary-deep);
      font-size:13px;
      font-weight:900;
      padding:8px;
      line-height:1.25;
    }
    .list-item h3{
      font-size:19px;
      margin:7px 0 6px;
    }
    .list-item h3 a{transition:color var(--ease)}
    .list-item h3 a:hover{color:#7d4a2d}
    .list-item p{
      display:-webkit-box;
      -webkit-line-clamp:2;
      -webkit-box-orient:vertical;
      overflow:hidden;
      font-size:14px;
      line-height:1.7;
    }
    .empty-state{
      grid-column:1 / -1;
      padding:42px;
      text-align:center;
      border:1px dashed var(--line-strong);
      border-radius:var(--radius-xl);
      background:rgba(255,255,255,.78);
      box-shadow:var(--shadow-soft);
    }
    .empty-icon{
      width:58px;
      height:58px;
      margin:0 auto 16px;
      border-radius:22px;
      background:linear-gradient(135deg,var(--primary),var(--accent));
      opacity:.88;
    }
    .empty-state p{
      margin:0 0 20px;
      color:var(--muted);
    }
    .proof-grid{
      display:grid;
      grid-template-columns:1fr 1fr 1fr;
      gap:20px;
    }
    .proof-card{
      padding:28px;
      border-radius:var(--radius-lg);
      background:linear-gradient(180deg,#fff,#fbf6f2);
      border:1px solid var(--line);
      box-shadow:var(--shadow-soft);
      min-height:220px;
      transition:transform var(--ease),border-color var(--ease);
    }
    .proof-card:hover{
      transform:translateY(-4px);
      border-color:var(--accent);
    }
    .proof-card .proof-mark{
      width:44px;
      height:44px;
      border-radius:16px;
      background:#efe2ed;
      display:grid;
      place-items:center;
      color:var(--primary);
      font-weight:900;
      margin-bottom:18px;
    }
    .proof-card h3{font-size:21px;margin-bottom:10px}
    .faq-grid{
      display:grid;
      grid-template-columns:1fr 1fr;
      gap:16px;
    }
    details.faq-item{
      border:1px solid var(--line);
      border-radius:22px;
      background:rgba(255,255,255,.78);
      box-shadow:0 10px 24px rgba(64,38,75,.06);
      overflow:hidden;
      transition:border-color var(--ease),box-shadow var(--ease),background var(--ease);
    }
    details.faq-item[open]{
      border-color:rgba(212,154,114,.55);
      background:#fffaf5;
      box-shadow:var(--shadow-soft);
    }
    .faq-item summary{
      list-style:none;
      cursor:pointer;
      padding:22px 24px;
      font-weight:900;
      color:var(--primary-deep);
      display:flex;
      justify-content:space-between;
      gap:20px;
      align-items:center;
    }
    .faq-item summary::-webkit-details-marker{display:none}
    .faq-item summary:after{
      content:"+";
      width:28px;
      height:28px;
      border-radius:50%;
      display:grid;
      place-items:center;
      background:#f1e6ef;
      color:var(--primary);
      flex:0 0 auto;
      transition:transform var(--ease),background var(--ease);
    }
    .faq-item[open] summary:after{
      content:"−";
      background:#f5dfcf;
      transform:rotate(180deg);
    }
    .faq-item p{
      margin:0;
      padding:0 24px 24px;
      color:var(--muted);
      line-height:1.85;
    }
    .search-panel{
      display:grid;
      grid-template-columns:1fr auto;
      gap:12px;
      padding:12px;
      border-radius:24px;
      border:1px solid var(--line);
      background:rgba(255,255,255,.78);
      box-shadow:var(--shadow-soft);
      max-width:760px;
      margin:30px auto 0;
    }
    .search-panel input{
      width:100%;
      border:0;
      background:transparent;
      padding:0 10px;
      color:var(--ink);
      outline:none;
    }
    .search-panel input::placeholder{color:#9a8f9f}
    .cta{
      padding:58px;
      border-radius:42px;
      background:
        radial-gradient(circle at 16% 20%, rgba(242,213,189,.26), transparent 28%),
        linear-gradient(135deg,var(--primary-deep),var(--primary));
      color:#fff;
      display:grid;
      grid-template-columns:1fr auto;
      gap:28px;
      align-items:center;
      box-shadow:var(--shadow);
      overflow:hidden;
      position:relative;
    }
    .cta:after{
      content:"";
      position:absolute;
      right:-70px;
      top:-70px;
      width:220px;
      height:220px;
      border-radius:50%;
      border:34px solid rgba(255,255,255,.06);
    }
    .cta h2{
      margin:0 0 12px;
      font-size:clamp(28px,4vw,40px);
      line-height:1.25;
      letter-spacing:-.035em;
    }
    .cta p{
      margin:0;
      color:rgba(255,255,255,.75);
      max-width:720px;
    }
    .cta .btn-secondary{
      background:rgba(255,255,255,.12);
      border-color:rgba(255,255,255,.28);
      color:#fff;
      position:relative;
      z-index:1;
    }
    .cta .btn-secondary:hover{
      background:rgba(255,255,255,.18);
      border-color:var(--accent-2);
    }
    .site-footer{
      background:var(--primary-deep);
      color:#e9dde9;
      padding:54px 0 24px;
      margin-top:72px;
    }
    .footer-grid{
      display:grid;
      grid-template-columns:1.2fr .8fr .8fr;
      gap:34px;
      padding-bottom:34px;
      border-bottom:1px solid rgba(255,255,255,.12);
    }
    .footer-brand{
      display:flex;
      align-items:center;
      gap:12px;
      margin-bottom:14px;
      font-weight:900;
    }
    .footer-brand .brand-mark{
      width:38px;
      height:38px;
      box-shadow:none;
      background:
        radial-gradient(circle at 32% 28%, #fff4e8 0 20%, transparent 21%),
        linear-gradient(135deg,#6c3b77,#2a1232);
    }
    .footer-grid p{
      margin:0;
      color:rgba(233,221,233,.7);
      max-width:520px;
    }
    .footer-col h3{
      margin:0 0 14px;
      font-size:16px;
      color:#fff;
    }
    .footer-links{
      list-style:none;
      margin:0;
      padding:0;
      display:grid;
      gap:10px;
    }
    .footer-links a{
      color:rgba(233,221,233,.72);
      transition:color var(--ease),transform var(--ease);
      display:inline-flex;
    }
    .footer-links a:hover{
      color:var(--accent-2);
      transform:translateX(3px);
    }
    .copyright{
      display:flex;
      justify-content:space-between;
      gap:20px;
      flex-wrap:wrap;
      padding-top:22px;
      color:rgba(233,221,233,.58);
      font-size:14px;
    }
    @media (max-width:1024px){
      .container{width:min(100% - 32px,var(--container))}
      .nav-actions .btn{display:none}
      .hero-grid,
      .feature-layout,
      .showcase-grid,
      .updates-layout{
        grid-template-columns:1fr;
      }
      .hero-visual{min-height:440px}
      .visual-back{inset:0 0 48px 18px}
      .feature-major{grid-template-columns:1fr}
      .feature-image{min-height:280px}
      .scenario{padding:40px}
      .scenario-grid{grid-template-columns:1fr 1fr}
      .proof-grid{grid-template-columns:1fr 1fr}
    }
    @media (max-width:768px){
      .nav-wrap{height:68px}
      .brand-text strong{max-width:190px}
      .main-nav{
        position:absolute;
        top:76px;
        left:16px;
        right:16px;
        display:none;
        flex-direction:column;
        align-items:stretch;
        border-radius:24px;
        padding:12px;
        box-shadow:var(--shadow);
        background:rgba(255,250,250,.96);
      }
      .main-nav.open{display:flex}
      .main-nav a{padding:13px 16px}
      .menu-toggle{display:inline-flex}
      .hero{padding:50px 0 30px}
      .section{padding:62px 0}
      .section-head{
        display:block;
        margin-bottom:26px;
      }
      .section-desc{margin-top:12px}
      .hero-actions .btn{width:100%}
      .info-strip{grid-template-columns:1fr 1fr}
      .floating-panel{width:94%;padding:20px}
      .feature-body{padding:24px}
      .scenario{border-radius:30px;padding:28px}
      .scenario-grid{grid-template-columns:1fr}
      .featured-update .cover{height:210px}
      .list-item{grid-template-columns:1fr}
      .date-box{width:100%;height:auto;min-height:48px;justify-content:flex-start}
      .proof-grid,
      .faq-grid{
        grid-template-columns:1fr;
      }
      .search-panel{grid-template-columns:1fr}
      .search-panel .btn{width:100%}
      .cta{
        grid-template-columns:1fr;
        padding:34px;
        border-radius:30px;
      }
      .footer-grid{grid-template-columns:1fr}
    }
    @media (max-width:520px){
      .container{width:min(100% - 24px,var(--container))}
      h1{font-size:32px;letter-spacing:-.04em}
      .hero-sub{font-size:16px}
      .hero-visual{min-height:390px}
      .visual-back{inset:0 0 80px 0;border-radius:30px}
      .floating-panel{left:12px;bottom:10px}
      .floating-panel strong{font-size:20px}
      .info-strip{grid-template-columns:1fr}
      .small-card,
      .proof-card,
      .reading-card,
      .update-body{padding:22px}
      .reading-card{grid-template-columns:1fr}
      .section-title{font-size:28px}
      .footer-brand{align-items:flex-start}
      .copyright{display:block}
      .copyright span{display:block;margin-top:8px}
    }

/* roulang page: article */
:root{
      --ink:#211426;
      --ink-2:#34223b;
      --muted:#766b7d;
      --soft:#f7f2f5;
      --mist:#efe7ef;
      --panel:#fffafa;
      --panel-2:#fbf6f2;
      --primary:#44204f;
      --primary-deep:#2a1232;
      --accent:#d49a72;
      --accent-2:#f2d5bd;
      --line:#e6dbe5;
      --line-strong:#d7c6d5;
      --white:#ffffff;
      --shadow:0 22px 60px rgba(64,38,75,.12);
      --shadow-soft:0 14px 36px rgba(64,38,75,.09);
      --radius-xl:30px;
      --radius-lg:24px;
      --radius-md:18px;
      --radius-sm:12px;
      --container:1200px;
      --ease:180ms ease;
    }
    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{
      margin:0;
      font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei",Arial,sans-serif;
      color:var(--ink);
      background:
        radial-gradient(circle at 12% 6%, rgba(212,154,114,.18), transparent 28%),
        radial-gradient(circle at 86% 12%, rgba(68,32,79,.12), transparent 30%),
        linear-gradient(180deg,#fffafa 0%,#f7f2f5 48%,#fffafa 100%);
      line-height:1.75;
      overflow-x:hidden;
    }
    a{color:inherit;text-decoration:none}
    img{max-width:100%;display:block}
    button,input{font:inherit}
    button{border:0;cursor:pointer}
    :focus-visible{outline:3px solid rgba(212,154,114,.55);outline-offset:3px}
    .container{width:min(var(--container),calc(100% - 40px));margin:0 auto}
    .site-header{
      position:sticky;
      top:0;
      z-index:50;
      background:rgba(255,250,250,.88);
      backdrop-filter:blur(18px);
      border-bottom:1px solid rgba(230,219,229,.88);
    }
    .nav-wrap{
      height:76px;
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:24px;
    }
    .brand{
      display:flex;
      align-items:center;
      gap:12px;
      min-width:0;
      font-weight:800;
      letter-spacing:-.02em;
      color:var(--primary-deep);
    }
    .brand-mark{
      width:42px;
      height:42px;
      border-radius:16px;
      background:
        radial-gradient(circle at 32% 28%, #fff4e8 0 20%, transparent 21%),
        linear-gradient(135deg,var(--primary),var(--primary-deep));
      box-shadow:0 12px 28px rgba(68,32,79,.2);
      position:relative;
      flex:0 0 auto;
    }
    .brand-mark:after{
      content:"";
      position:absolute;
      left:12px;
      right:12px;
      bottom:10px;
      height:4px;
      border-radius:999px;
      background:var(--accent);
    }
    .brand-text{
      display:flex;
      flex-direction:column;
      line-height:1.15;
    }
    .brand-text strong{
      max-width:300px;
      white-space:nowrap;
      overflow:hidden;
      text-overflow:ellipsis;
      font-size:16px;
    }
    .brand-text span{
      font-size:12px;
      color:var(--muted);
      font-weight:600;
      margin-top:3px;
    }
    .main-nav{
      display:flex;
      align-items:center;
      gap:8px;
      padding:6px;
      border:1px solid var(--line);
      border-radius:999px;
      background:rgba(255,255,255,.72);
    }
    .main-nav a{
      position:relative;
      padding:9px 15px;
      border-radius:999px;
      font-size:14px;
      font-weight:700;
      color:var(--ink-2);
      transition:background var(--ease),color var(--ease),transform var(--ease);
    }
    .main-nav a:hover,
    .main-nav a.active{
      background:#f5e5d7;
      color:var(--primary-deep);
    }
    .main-nav a:active{transform:translateY(1px)}
    .nav-actions{display:flex;align-items:center;gap:12px}
    .menu-toggle{
      display:none;
      width:44px;
      height:44px;
      border-radius:15px;
      background:var(--primary);
      color:#fff;
      align-items:center;
      justify-content:center;
      box-shadow:var(--shadow-soft);
    }
    .menu-toggle span{
      width:18px;
      height:2px;
      background:#fff;
      position:relative;
      border-radius:999px;
    }
    .menu-toggle span:before,
    .menu-toggle span:after{
      content:"";
      position:absolute;
      left:0;
      width:18px;
      height:2px;
      background:#fff;
      border-radius:999px;
    }
    .menu-toggle span:before{top:-6px}
    .menu-toggle span:after{top:6px}
    .btn{
      display:inline-flex;
      align-items:center;
      justify-content:center;
      gap:8px;
      min-height:46px;
      padding:12px 20px;
      border-radius:999px;
      font-weight:800;
      line-height:1;
      transition:transform var(--ease),box-shadow var(--ease),background var(--ease),border-color var(--ease),color var(--ease);
      border:1px solid transparent;
      white-space:nowrap;
    }
    .btn-primary{
      background:linear-gradient(135deg,var(--primary),var(--primary-deep));
      color:#fff;
      box-shadow:0 15px 34px rgba(68,32,79,.2);
    }
    .btn-primary:hover{
      transform:translateY(-2px);
      box-shadow:0 20px 46px rgba(68,32,79,.28);
      border-color:rgba(242,213,189,.85);
      color:#fff;
    }
    .btn-secondary{
      background:rgba(255,255,255,.75);
      border-color:var(--line-strong);
      color:var(--primary-deep);
    }
    .btn-secondary:hover{
      transform:translateY(-2px);
      background:#fff5ec;
      border-color:var(--accent);
      color:var(--primary-deep);
    }
    .btn:active{transform:translateY(1px) scale(.99)}
    .section{
      padding:86px 0;
      position:relative;
    }
    .section-tight{padding:54px 0}
    .eyebrow{
      display:inline-flex;
      align-items:center;
      gap:8px;
      padding:7px 12px;
      border:1px solid rgba(212,154,114,.42);
      background:rgba(255,245,236,.75);
      color:#7a4d31;
      border-radius:999px;
      font-weight:800;
      font-size:13px;
    }
    .eyebrow:before{
      content:"";
      width:8px;
      height:8px;
      border-radius:50%;
      background:var(--accent);
      box-shadow:0 0 0 5px rgba(212,154,114,.18);
    }
    .badge-soft{
      display:inline-flex;
      align-items:center;
      gap:7px;
      border-radius:999px;
      padding:7px 12px;
      background:#f8eadf;
      color:#7a4d31;
      border:1px solid rgba(212,154,114,.35);
      font-size:13px;
      font-weight:800;
    }
    .site-main{min-height:68vh}
    .article-hero{
      position:relative;
      padding:58px 0 30px;
      overflow:hidden;
    }
    .article-hero:before{
      content:"";
      position:absolute;
      inset:0;
      background:
        linear-gradient(90deg,rgba(255,250,250,.92),rgba(255,250,250,.78)),
        url("/assets/images/backpic/back-2.jpg") center/cover no-repeat;
      opacity:.98;
      z-index:-2;
    }
    .article-hero:after{
      content:"";
      position:absolute;
      width:520px;
      height:520px;
      right:-140px;
      top:-210px;
      background:radial-gradient(circle,rgba(212,154,114,.25),transparent 68%);
      z-index:-1;
    }
    .breadcrumb{
      display:flex;
      align-items:center;
      flex-wrap:wrap;
      gap:8px;
      margin:0 0 28px;
      color:var(--muted);
      font-size:14px;
      font-weight:700;
    }
    .breadcrumb a{
      color:var(--primary-deep);
      border-bottom:1px solid rgba(212,154,114,.55);
      transition:color var(--ease),border-color var(--ease);
    }
    .breadcrumb a:hover{
      color:#7a4d31;
      border-color:var(--accent);
    }
    .breadcrumb .sep{color:#b19bab}
    .article-title-wrap{
      max-width:920px;
    }
    .article-title-wrap h1{
      margin:18px 0 18px;
      font-size:clamp(32px,5vw,54px);
      line-height:1.18;
      letter-spacing:-.04em;
      color:var(--primary-deep);
      font-weight:900;
    }
    .article-lead{
      max-width:820px;
      margin:0 0 24px;
      color:var(--muted);
      font-size:18px;
      line-height:1.9;
    }
    .article-meta{
      display:flex;
      align-items:center;
      flex-wrap:wrap;
      gap:10px;
      margin-top:22px;
    }
    .meta-pill{
      display:inline-flex;
      align-items:center;
      gap:8px;
      min-height:34px;
      padding:7px 12px;
      border-radius:999px;
      background:rgba(255,255,255,.72);
      border:1px solid var(--line);
      color:var(--muted);
      font-size:13px;
      font-weight:800;
    }
    .meta-pill strong{color:var(--primary-deep)}
    .article-shell{
      display:grid;
      grid-template-columns:minmax(0,820px) minmax(260px,320px);
      gap:36px;
      align-items:start;
      padding-top:42px;
    }
    .article-card{
      background:rgba(255,250,250,.92);
      border:1px solid var(--line);
      border-radius:var(--radius-xl);
      box-shadow:var(--shadow);
      overflow:hidden;
    }
    .article-cover{
      padding:16px;
      background:linear-gradient(135deg,#fff8f1,#f1e8f1);
      border-bottom:1px solid var(--line);
    }
    .article-cover img{
      width:100%;
      aspect-ratio:16/8;
      object-fit:cover;
      border-radius:22px;
      box-shadow:0 12px 30px rgba(64,38,75,.1);
    }
    .article-content{
      padding:38px 42px 44px;
      font-size:17px;
      line-height:1.92;
      color:#302038;
      word-break:break-word;
    }
    .article-content h2{
      margin:42px 0 16px;
      font-size:30px;
      line-height:1.3;
      color:var(--primary-deep);
      font-weight:900;
      letter-spacing:-.02em;
    }
    .article-content h3{
      margin:32px 0 12px;
      font-size:22px;
      line-height:1.38;
      color:var(--ink-2);
      font-weight:900;
    }
    .article-content p{margin:0 0 20px}
    .article-content a{
      color:var(--primary-deep);
      font-weight:800;
      background:linear-gradient(transparent 62%,rgba(212,154,114,.28) 0);
      transition:color var(--ease),background var(--ease);
    }
    .article-content a:hover{
      color:#7a4d31;
      background:linear-gradient(transparent 54%,rgba(212,154,114,.45) 0);
    }
    .article-content blockquote{
      margin:30px 0;
      padding:20px 24px;
      border-left:5px solid var(--accent);
      border-radius:0 var(--radius-md) var(--radius-md) 0;
      background:#fbf0f6;
      color:var(--ink-2);
      font-weight:700;
    }
    .article-content ul,
    .article-content ol{
      margin:0 0 24px;
      padding-left:0;
      list-style:none;
    }
    .article-content li{
      position:relative;
      margin:10px 0;
      padding-left:28px;
    }
    .article-content ul li:before{
      content:"";
      position:absolute;
      left:4px;
      top:.78em;
      width:9px;
      height:9px;
      border-radius:50%;
      background:var(--accent);
      box-shadow:0 0 0 5px rgba(212,154,114,.16);
    }
    .article-content ol{counter-reset:item}
    .article-content ol li{counter-increment:item}
    .article-content ol li:before{
      content:counter(item);
      position:absolute;
      left:0;
      top:.25em;
      width:20px;
      height:20px;
      display:inline-flex;
      align-items:center;
      justify-content:center;
      border-radius:50%;
      background:var(--primary);
      color:#fff;
      font-size:12px;
      font-weight:900;
      line-height:1;
    }
    .article-content img{
      width:auto;
      max-width:100%;
      height:auto;
      margin:30px auto;
      border-radius:18px;
      box-shadow:var(--shadow-soft);
      border:1px solid var(--line);
    }
    .article-content figure{margin:30px 0}
    .article-content figcaption{
      margin-top:10px;
      color:var(--muted);
      text-align:center;
      font-size:14px;
    }
    .article-content hr{
      margin:38px 0;
      border:0;
      border-top:1px solid var(--line);
    }
    .article-content table{
      width:100%;
      border-collapse:separate;
      border-spacing:0;
      margin:30px 0;
      overflow:hidden;
      border:1px solid var(--line);
      border-radius:18px;
      background:#fff;
      font-size:15px;
    }
    .article-content th,
    .article-content td{
      padding:13px 15px;
      border-bottom:1px solid var(--line);
      border-right:1px solid var(--line);
      vertical-align:top;
    }
    .article-content th{
      background:#f7edf4;
      color:var(--primary-deep);
      font-weight:900;
    }
    .article-content tr:last-child td{border-bottom:0}
    .article-content th:last-child,
    .article-content td:last-child{border-right:0}
    .empty-article{
      min-height:360px;
      display:flex;
      flex-direction:column;
      align-items:flex-start;
      justify-content:center;
      gap:16px;
      padding:50px 42px;
    }
    .empty-article h2{
      margin:0;
      color:var(--primary-deep);
      font-size:30px;
      font-weight:900;
    }
    .empty-article p{
      margin:0;
      color:var(--muted);
      font-size:17px;
    }
    .article-aside{
      position:sticky;
      top:104px;
      display:grid;
      gap:18px;
    }
    .aside-card{
      background:rgba(255,250,250,.9);
      border:1px solid var(--line);
      border-radius:var(--radius-lg);
      padding:22px;
      box-shadow:var(--shadow-soft);
    }
    .aside-card h2,
    .aside-card h3{
      margin:0 0 12px;
      color:var(--primary-deep);
      font-size:20px;
      line-height:1.35;
      font-weight:900;
    }
    .aside-card p{
      margin:0 0 16px;
      color:var(--muted);
      font-size:14px;
      line-height:1.75;
    }
    .aside-cover{
      border-radius:20px;
      overflow:hidden;
      margin-bottom:16px;
      background:#f2e8f0;
    }
    .aside-cover img{
      width:100%;
      aspect-ratio:4/3;
      object-fit:cover;
      transition:transform 260ms ease;
    }
    .aside-card:hover .aside-cover img{transform:scale(1.035)}
    .aside-list{
      list-style:none;
      padding:0;
      margin:0;
      display:grid;
      gap:12px;
    }
    .aside-list li{
      padding:13px 14px;
      border-radius:16px;
      background:#fff;
      border:1px solid var(--line);
      transition:transform var(--ease),border-color var(--ease),box-shadow var(--ease);
    }
    .aside-list li:hover{
      transform:translateY(-2px);
      border-color:rgba(212,154,114,.62);
      box-shadow:0 12px 26px rgba(64,38,75,.08);
    }
    .aside-list a{
      display:block;
      color:var(--ink-2);
      font-size:14px;
      font-weight:800;
      line-height:1.55;
    }
    .aside-list span{
      display:block;
      margin-top:5px;
      color:var(--muted);
      font-size:12px;
      font-weight:700;
    }
    .article-footer-panel{
      margin-top:28px;
      display:grid;
      grid-template-columns:1fr 1fr;
      gap:18px;
    }
    .next-card{
      position:relative;
      padding:24px;
      min-height:166px;
      border-radius:var(--radius-lg);
      background:linear-gradient(135deg,#fffafa,#fbf0e7);
      border:1px solid var(--line);
      box-shadow:var(--shadow-soft);
      overflow:hidden;
      transition:transform var(--ease),border-color var(--ease),box-shadow var(--ease);
    }
    .next-card:after{
      content:"";
      position:absolute;
      right:-42px;
      bottom:-52px;
      width:150px;
      height:150px;
      background:radial-gradient(circle,rgba(68,32,79,.13),transparent 68%);
    }
    .next-card:hover{
      transform:translateY(-3px);
      border-color:rgba(212,154,114,.62);
      box-shadow:0 22px 46px rgba(64,38,75,.12);
    }
    .next-card h3{
      position:relative;
      margin:0 0 10px;
      font-size:20px;
      line-height:1.38;
      color:var(--primary-deep);
      font-weight:900;
      z-index:1;
    }
    .next-card p{
      position:relative;
      margin:0 0 18px;
      color:var(--muted);
      font-size:14px;
      line-height:1.75;
      z-index:1;
    }
    .text-link{
      position:relative;
      display:inline-flex;
      align-items:center;
      gap:8px;
      color:var(--primary-deep);
      font-weight:900;
      z-index:1;
      transition:color var(--ease),gap var(--ease);
    }
    .text-link:after{content:"→"}
    .text-link:hover{
      gap:12px;
      color:#7a4d31;
    }
    .faq-section{
      padding:72px 0 86px;
    }
    .section-head{
      max-width:760px;
      margin-bottom:28px;
    }
    .section-head h2{
      margin:14px 0 10px;
      font-size:clamp(28px,4vw,40px);
      line-height:1.2;
      color:var(--primary-deep);
      letter-spacing:-.03em;
      font-weight:900;
    }
    .section-head p{
      margin:0;
      color:var(--muted);
      font-size:17px;
      line-height:1.85;
    }
    .faq-grid{
      display:grid;
      grid-template-columns:1fr 1fr;
      gap:18px;
    }
    .faq-card{
      padding:24px;
      border-radius:var(--radius-lg);
      background:rgba(255,250,250,.9);
      border:1px solid var(--line);
      box-shadow:var(--shadow-soft);
      transition:transform var(--ease),border-color var(--ease),box-shadow var(--ease);
    }
    .faq-card:hover{
      transform:translateY(-3px);
      border-color:rgba(212,154,114,.62);
      box-shadow:0 22px 46px rgba(64,38,75,.12);
    }
    .faq-card h3{
      margin:0 0 10px;
      display:flex;
      gap:10px;
      align-items:flex-start;
      color:var(--primary-deep);
      font-size:19px;
      line-height:1.45;
      font-weight:900;
    }
    .faq-card h3 span{
      flex:0 0 auto;
      width:28px;
      height:28px;
      border-radius:50%;
      display:inline-flex;
      align-items:center;
      justify-content:center;
      background:#f5e5d7;
      color:#7a4d31;
      font-size:13px;
      font-weight:900;
    }
    .faq-card p{
      margin:0;
      color:var(--muted);
      font-size:15px;
      line-height:1.82;
    }
    .cta-band{
      margin:0 0 86px;
    }
    .cta-inner{
      position:relative;
      overflow:hidden;
      border-radius:var(--radius-xl);
      padding:38px;
      background:
        linear-gradient(135deg,rgba(42,18,50,.96),rgba(68,32,79,.94)),
        url("/assets/images/backpic/back-3.jpg") center/cover no-repeat;
      color:#fff;
      box-shadow:0 26px 70px rgba(42,18,50,.22);
      display:grid;
      grid-template-columns:1fr auto;
      gap:28px;
      align-items:center;
    }
    .cta-inner:after{
      content:"";
      position:absolute;
      right:-80px;
      top:-90px;
      width:260px;
      height:260px;
      border-radius:50%;
      background:rgba(212,154,114,.22);
    }
    .cta-inner h2{
      position:relative;
      margin:0 0 10px;
      font-size:32px;
      line-height:1.25;
      font-weight:900;
      z-index:1;
    }
    .cta-inner p{
      position:relative;
      margin:0;
      color:#e7dce8;
      max-width:760px;
      z-index:1;
    }
    .cta-inner .btn{
      position:relative;
      z-index:1;
      background:#fff5ec;
      color:var(--primary-deep);
      border-color:rgba(255,255,255,.32);
      box-shadow:none;
    }
    .cta-inner .btn:hover{
      background:#fff;
      border-color:var(--accent);
      color:var(--primary-deep);
    }
    .site-footer{
      background:linear-gradient(180deg,var(--primary-deep),#1e0e24);
      color:#e7dce8;
      padding:58px 0 28px;
    }
    .footer-grid{
      display:grid;
      grid-template-columns:1.25fr .7fr .7fr;
      gap:34px;
      align-items:start;
    }
    .footer-brand{
      display:flex;
      align-items:center;
      gap:12px;
      font-weight:900;
      color:#fff;
      margin-bottom:14px;
    }
    .footer-brand .brand-mark{
      width:38px;
      height:38px;
      border-radius:14px;
      box-shadow:none;
      background:
        radial-gradient(circle at 32% 28%, #fff4e8 0 20%, transparent 21%),
        linear-gradient(135deg,#765184,var(--primary));
    }
    .site-footer p{
      margin:0;
      max-width:520px;
      color:#cfc0d2;
      line-height:1.8;
      font-size:15px;
    }
    .footer-col h3{
      margin:0 0 12px;
      color:#fff;
      font-size:16px;
      font-weight:900;
    }
    .footer-links{
      list-style:none;
      margin:0;
      padding:0;
      display:grid;
      gap:9px;
    }
    .footer-links a{
      color:#cfc0d2;
      font-weight:700;
      transition:color var(--ease),padding-left var(--ease);
    }
    .footer-links a:hover{
      color:#f2d5bd;
      padding-left:4px;
    }
    .copyright{
      margin-top:38px;
      padding-top:20px;
      border-top:1px solid rgba(255,255,255,.12);
      display:flex;
      justify-content:space-between;
      gap:14px;
      flex-wrap:wrap;
      color:#bdaec2;
      font-size:13px;
    }
    @media (max-width:1024px){
      .brand-text strong{max-width:220px}
      .article-shell{
        grid-template-columns:1fr;
      }
      .article-aside{
        position:relative;
        top:auto;
        grid-template-columns:1fr 1fr;
      }
      .footer-grid{grid-template-columns:1fr 1fr}
      .footer-grid>div:first-child{grid-column:1/-1}
    }
    @media (max-width:768px){
      .container{width:min(var(--container),calc(100% - 28px))}
      .nav-wrap{height:70px}
      .brand-text strong{max-width:180px}
      .brand-text span{display:none}
      .menu-toggle{display:inline-flex}
      .main-nav{
        position:absolute;
        left:14px;
        right:14px;
        top:78px;
        display:none;
        flex-direction:column;
        align-items:stretch;
        border-radius:22px;
        padding:12px;
        background:rgba(255,250,250,.97);
        box-shadow:var(--shadow);
      }
      .main-nav.is-open{display:flex}
      .main-nav a{
        padding:12px 14px;
        text-align:center;
      }
      .article-hero{padding:42px 0 24px}
      .breadcrumb{font-size:13px}
      .article-lead{font-size:16px}
      .article-content{padding:28px 22px 34px;font-size:16px}
      .article-content h2{font-size:25px}
      .article-content h3{font-size:20px}
      .article-cover{padding:12px}
      .article-cover img{aspect-ratio:16/10;border-radius:18px}
      .article-aside{grid-template-columns:1fr}
      .article-footer-panel{grid-template-columns:1fr}
      .faq-grid{grid-template-columns:1fr}
      .cta-inner{
        grid-template-columns:1fr;
        padding:28px 22px;
      }
      .cta-inner .btn{width:100%}
      .footer-grid{grid-template-columns:1fr}
      .copyright{flex-direction:column}
    }
    @media (max-width:520px){
      .brand-mark{width:38px;height:38px;border-radius:14px}
      .brand-text strong{max-width:150px;font-size:15px}
      .nav-actions .btn{display:none}
      .article-title-wrap h1{font-size:31px}
      .article-meta{align-items:flex-start}
      .meta-pill{font-size:12px}
      .article-content table{
        display:block;
        overflow-x:auto;
        white-space:nowrap;
      }
      .section{padding:58px 0}
      .faq-section{padding:56px 0 64px}
      .cta-band{margin-bottom:64px}
    }

/* roulang: framework shim */
/* 覆盖 Bootstrap 等对 a/btn 的全局默认，避免导航出现下划线/蓝链 */
.site-header a,.site-header a:hover,.navbar a,.navbar a:hover,.nav-links a,.nav-links a:hover,header nav a,header nav a:hover{text-decoration:none}
.site-header .btn,.navbar .btn,.nav-cta{text-decoration:none}