/* roulang page: index */
:root{
      --primary:#2563eb;
      --primary-dark:#1d4ed8;
      --primary-soft:#eef7ff;
      --ink:#0f172a;
      --muted:#64748b;
      --soft:#f7fbff;
      --line:#dbe7f5;
      --card:#ffffff;
      --shadow:0 18px 45px rgba(15,23,42,.08);
      --shadow-hover:0 24px 60px rgba(37,99,235,.16);
      --radius:24px;
      --radius-sm:16px;
    }
    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{
      margin:0;
      font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei","Segoe UI",sans-serif;
      color:var(--ink);
      background:
        radial-gradient(circle at 8% 0%, rgba(37,99,235,.10), transparent 30%),
        linear-gradient(180deg,#f8fbff 0%,#ffffff 34%,#f6faff 100%);
      line-height:1.75;
      text-rendering:optimizeLegibility;
    }
    a{color:inherit;text-decoration:none}
    img{max-width:100%;display:block}
    button,input,textarea{font:inherit}
    .site-container{width:min(1180px,calc(100% - 40px));margin-inline:auto}
    .skip-link{position:absolute;left:-999px;top:12px;background:#fff;color:var(--primary);padding:10px 14px;border-radius:12px;box-shadow:var(--shadow);z-index:100}
    .skip-link:focus{left:16px}
    .site-header{
      position:sticky;
      top:0;
      z-index:50;
      background:rgba(255,255,255,.88);
      backdrop-filter:blur(18px);
      border-bottom:1px solid rgba(219,231,245,.86);
    }
    .nav-wrap{
      min-height:76px;
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:18px;
    }
    .brand{
      display:flex;
      align-items:center;
      gap:12px;
      min-width:max-content;
      font-weight:900;
      letter-spacing:-.02em;
      color:#0b1b33;
    }
    .brand-mark{
      width:42px;height:42px;border-radius:15px;
      display:grid;place-items:center;
      color:white;
      background:linear-gradient(135deg,#2563eb,#60a5fa);
      box-shadow:0 14px 28px rgba(37,99,235,.24);
      font-weight:900;
    }
    .brand-text{font-size:18px;line-height:1.2}
    .seg-nav{
      display:flex;
      align-items:center;
      gap:8px;
      padding:7px;
      border:1px solid var(--line);
      border-radius:999px;
      background:#f7fbff;
      box-shadow:inset 0 1px 0 rgba(255,255,255,.78);
      overflow-x:auto;
      scrollbar-width:none;
    }
    .seg-nav::-webkit-scrollbar{display:none}
    .seg-link{
      white-space:nowrap;
      border-radius:999px;
      padding:9px 16px;
      color:#475569;
      font-size:14px;
      font-weight:700;
      transition:.22s ease;
    }
    .seg-link:hover{background:#fff;color:var(--primary);box-shadow:0 8px 20px rgba(15,23,42,.06)}
    .seg-link.active{background:var(--primary);color:white;box-shadow:0 10px 22px rgba(37,99,235,.24)}
    .nav-cta{
      display:inline-flex;
      align-items:center;
      justify-content:center;
      gap:8px;
      border-radius:999px;
      padding:11px 18px;
      background:#0f172a;
      color:#fff;
      font-weight:800;
      box-shadow:0 14px 26px rgba(15,23,42,.16);
      transition:.22s ease;
      white-space:nowrap;
    }
    .nav-cta:hover{transform:translateY(-2px);background:#1e293b}
    .section{padding:86px 0}
    .section-tight{padding:64px 0}
    .section-head{display:flex;align-items:end;justify-content:space-between;gap:28px;margin-bottom:30px}
    .section-kicker{
      display:inline-flex;
      align-items:center;
      gap:8px;
      padding:7px 12px;
      border-radius:999px;
      background:#eaf4ff;
      color:#1d4ed8;
      border:1px solid #d7e9ff;
      font-size:13px;
      font-weight:800;
      margin-bottom:12px;
    }
    .section-title{font-size:clamp(28px,3vw,42px);line-height:1.18;font-weight:900;letter-spacing:-.04em;color:#0b1220;margin:0}
    .section-desc{margin:12px 0 0;color:var(--muted);font-size:16px;max-width:680px}
    .btn{
      display:inline-flex;align-items:center;justify-content:center;gap:8px;
      min-height:46px;
      border-radius:999px;
      padding:12px 20px;
      border:1px solid transparent;
      font-weight:850;
      transition:.22s ease;
      cursor:pointer;
    }
    .btn-primary{background:var(--primary);color:white;box-shadow:0 16px 30px rgba(37,99,235,.25)}
    .btn-primary:hover{background:var(--primary-dark);transform:translateY(-2px);box-shadow:var(--shadow-hover)}
    .btn-secondary{background:white;color:#1d4ed8;border-color:#bfd8ff;box-shadow:0 10px 24px rgba(15,23,42,.06)}
    .btn-secondary:hover{border-color:#93c5fd;background:#f5faff;transform:translateY(-2px)}
    .btn:focus,.seg-link:focus,input:focus,textarea:focus,summary:focus{outline:3px solid rgba(37,99,235,.25);outline-offset:3px}
    .badge{
      display:inline-flex;align-items:center;gap:6px;
      border:1px solid #d9e8fb;
      background:#f4f9ff;
      color:#315b8d;
      padding:6px 10px;
      border-radius:999px;
      font-size:12px;
      font-weight:800;
    }
    .card{
      background:var(--card);
      border:1px solid rgba(219,231,245,.95);
      border-radius:var(--radius);
      box-shadow:var(--shadow);
      transition:.25s ease;
    }
    .card:hover{transform:translateY(-3px);box-shadow:var(--shadow-hover);border-color:#c6ddff}
    .hero{
      padding:54px 0 72px;
      position:relative;
      overflow:hidden;
    }
    .hero-banner{
      position:relative;
      border:1px solid rgba(191,216,255,.9);
      border-radius:34px;
      overflow:hidden;
      min-height:560px;
      background:
        linear-gradient(110deg,rgba(255,255,255,.94) 0%,rgba(238,247,255,.92) 45%,rgba(37,99,235,.09) 100%),
        radial-gradient(circle at 88% 18%,rgba(96,165,250,.32),transparent 28%);
      box-shadow:0 30px 80px rgba(37,99,235,.13);
    }
    .hero-banner:before{
      content:"";
      position:absolute;inset:0;
      background-image:linear-gradient(rgba(37,99,235,.06) 1px,transparent 1px),linear-gradient(90deg,rgba(37,99,235,.05) 1px,transparent 1px);
      background-size:32px 32px;
      mask-image:linear-gradient(90deg,#000 0%,transparent 72%);
      pointer-events:none;
    }
    .hero-content{
      position:relative;
      z-index:2;
      display:grid;
      grid-template-columns:1.04fr .96fr;
      gap:30px;
      align-items:stretch;
      padding:46px;
    }
    .promo-chip{
      display:inline-flex;
      align-items:center;
      gap:10px;
      border-radius:999px;
      background:#ffffff;
      border:1px solid #cfe2ff;
      padding:8px 14px 8px 8px;
      box-shadow:0 10px 25px rgba(37,99,235,.10);
      font-size:13px;
      font-weight:850;
      color:#1d4ed8;
    }
    .promo-dot{width:28px;height:28px;border-radius:50%;background:#dbeafe;display:grid;place-items:center}
    .hero h1{
      margin:20px 0 16px;
      font-size:clamp(38px,5vw,68px);
      line-height:1.03;
      letter-spacing:-.06em;
      font-weight:950;
      color:#071225;
    }
    .hero-lead{font-size:18px;color:#45556d;max-width:680px;margin:0 0 24px;line-height:1.9}
    .hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin:28px 0}
    .hero-points{display:grid;grid-template-columns:repeat(3,1fr);gap:12px;margin-top:28px}
    .point{
      background:rgba(255,255,255,.75);
      border:1px solid rgba(219,231,245,.96);
      border-radius:18px;
      padding:14px;
    }
    .point strong{display:block;font-size:22px;line-height:1;color:#1d4ed8}
    .point span{font-size:12px;color:#64748b;font-weight:700}
    .stage{
      position:relative;
      min-height:440px;
      display:grid;
      place-items:center;
    }
    .burst{
      position:absolute;right:12px;top:6px;
      width:128px;height:128px;
      border-radius:34px;
      transform:rotate(9deg);
      display:grid;place-items:center;text-align:center;
      background:#0f172a;
      color:white;
      box-shadow:0 18px 35px rgba(15,23,42,.22);
      font-weight:950;
      line-height:1.18;
      padding:14px;
      z-index:4;
    }
    .portal-board{
      width:100%;
      max-width:470px;
      border-radius:30px;
      background:rgba(255,255,255,.88);
      border:1px solid rgba(219,231,245,.95);
      box-shadow:0 26px 70px rgba(37,99,235,.15);
      padding:18px;
      transform:rotate(-1.5deg);
    }
    .board-top{display:flex;justify-content:space-between;align-items:center;border-bottom:1px solid #e5eefb;padding-bottom:14px;margin-bottom:14px}
    .board-title{font-weight:950;color:#0b1220}
    .board-line{display:grid;grid-template-columns:44px 1fr auto;gap:12px;align-items:center;padding:12px;border-radius:18px;background:#f8fbff;margin-top:10px;border:1px solid #edf4ff}
    .line-icon{width:44px;height:44px;border-radius:15px;background:#e0efff;display:grid;place-items:center;color:#1d4ed8;font-weight:950}
    .line-text strong{display:block;font-size:14px}
    .line-text span{display:block;color:#64748b;font-size:12px}
    .line-status{font-size:12px;font-weight:850;color:#1d4ed8;background:white;border:1px solid #d8e8ff;border-radius:999px;padding:5px 8px}
    .matrix-layout{display:grid;grid-template-columns:1.15fr .85fr;gap:22px}
    .feature-main{padding:30px;background:linear-gradient(135deg,#ffffff,#edf6ff)}
    .feature-main h3{font-size:28px;line-height:1.25;margin:14px 0 10px;font-weight:950}
    .feature-main p,.feature-card p{color:#64748b;margin:0}
    .feature-list{display:grid;grid-template-columns:repeat(2,1fr);gap:14px;margin-top:24px}
    .feature-card{padding:22px}
    .icon-box{width:44px;height:44px;border-radius:16px;background:#e8f2ff;color:#1d4ed8;display:grid;place-items:center;font-weight:950;margin-bottom:14px}
    .feature-card h3{font-size:18px;margin:0 0 8px;font-weight:900}
    .info-shell{display:grid;grid-template-columns:1.35fr .65fr;gap:22px}
    .news-list{padding:10px}
    .news-item{
      display:grid;
      grid-template-columns:1fr auto;
      gap:14px;
      padding:18px;
      border-radius:20px;
      border:1px solid transparent;
      transition:.22s ease;
    }
    .news-item:hover{background:#f7fbff;border-color:#dcecff}
    .news-item h3{margin:0 0 8px;font-size:18px;line-height:1.45;font-weight:900}
    .news-item p{margin:0;color:#64748b;font-size:14px;line-height:1.7}
    .news-meta{display:flex;flex-wrap:wrap;gap:8px;margin-top:12px}
    .news-arrow{align-self:center;width:36px;height:36px;border-radius:50%;display:grid;place-items:center;background:#eef6ff;color:#1d4ed8;font-weight:950}
    .side-panel{padding:24px;background:#0f172a;color:white}
    .side-panel h3{font-size:22px;margin:0 0 12px;font-weight:950}
    .side-panel p{color:#cbd5e1;margin:0 0 18px}
    .rank-item{display:flex;gap:12px;padding:13px 0;border-top:1px solid rgba(255,255,255,.12)}
    .rank-num{width:28px;height:28px;border-radius:10px;background:rgba(96,165,250,.20);display:grid;place-items:center;color:#bfdbfe;font-weight:950;flex:0 0 auto}
    .stats-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}
    .stat-card{padding:24px}
    .stat-card strong{display:block;font-size:38px;line-height:1;color:#1d4ed8;font-weight:950;letter-spacing:-.04em}
    .stat-card span{display:block;margin-top:10px;color:#64748b;font-weight:750}
    .stat-spark{height:6px;border-radius:999px;background:#e8f2ff;margin-top:18px;overflow:hidden}
    .stat-spark i{display:block;height:100%;border-radius:inherit;background:linear-gradient(90deg,#2563eb,#93c5fd)}
    .case-layout{display:grid;grid-template-columns:1fr 1fr;gap:22px;align-items:stretch}
    .case-large{padding:28px;display:flex;flex-direction:column;justify-content:space-between;min-height:360px;background:linear-gradient(135deg,#ffffff,#f1f7ff)}
    .case-visual{
      height:150px;border-radius:22px;margin-bottom:20px;
      background:
        radial-gradient(circle at 22% 35%,rgba(37,99,235,.28),transparent 28%),
        linear-gradient(135deg,#eaf4ff,#ffffff);
      border:1px solid #dbeafe;
      position:relative;
      overflow:hidden;
    }
    .case-visual:after{content:"";position:absolute;right:22px;top:26px;width:150px;height:84px;border-radius:22px;background:white;box-shadow:0 16px 32px rgba(37,99,235,.12)}
    .case-stack{display:grid;gap:16px}
    .case-mini{padding:20px;display:grid;grid-template-columns:68px 1fr;gap:16px;align-items:center}
    .mini-thumb{width:68px;height:68px;border-radius:20px;background:#e8f2ff;display:grid;place-items:center;color:#1d4ed8;font-weight:950}
    .case-card h3{margin:0 0 8px;font-size:20px;font-weight:950}
    .case-card p{margin:0;color:#64748b}
    .plan-wrap{display:grid;grid-template-columns:.85fr 1.15fr;gap:22px}
    .plan-note{padding:28px;background:#f8fbff}
    .step-list{display:grid;gap:14px}
    .step{display:grid;grid-template-columns:46px 1fr;gap:14px;padding:20px}
    .step-num{width:46px;height:46px;border-radius:16px;background:#1d4ed8;color:white;display:grid;place-items:center;font-weight:950}
    .step h3{margin:0 0 6px;font-size:18px;font-weight:950}
    .step p{margin:0;color:#64748b}
    .media-row{display:flex;gap:16px;overflow-x:auto;padding:6px 2px 18px;scroll-snap-type:x mandatory}
    .media-card{min-width:280px;scroll-snap-align:start;padding:20px}
    .media-card h3{font-size:18px;font-weight:950;margin:14px 0 8px}
    .media-card p{font-size:14px;color:#64748b;margin:0}
    .media-strip{height:92px;border-radius:20px;background:linear-gradient(135deg,#e0efff,#ffffff);border:1px solid #dbeafe}
    .faq-wrap{display:grid;grid-template-columns:.8fr 1.2fr;gap:26px}
    details.faq-item{padding:20px;border-radius:22px;background:white;border:1px solid var(--line);box-shadow:0 12px 30px rgba(15,23,42,.05)}
    details.faq-item + details.faq-item{margin-top:12px}
    .faq-item summary{cursor:pointer;list-style:none;display:flex;justify-content:space-between;gap:18px;font-weight:950}
    .faq-item summary::-webkit-details-marker{display:none}
    .faq-item summary:after{content:"＋";color:#1d4ed8;font-weight:950}
    .faq-item[open] summary:after{content:"－"}
    .faq-item p{margin:14px 0 0;color:#64748b}
    .contact-grid{display:grid;grid-template-columns:1.08fr .92fr;gap:22px}
    .contact-form{padding:28px}
    .form-grid{display:grid;grid-template-columns:1fr 1fr;gap:14px}
    .field{display:flex;flex-direction:column;gap:8px}
    .field.full{grid-column:1/-1}
    .field label{font-weight:850;font-size:14px;color:#334155}
    .field input,.field textarea{
      width:100%;
      border:1px solid #d6e4f5;
      background:#fbfdff;
      border-radius:16px;
      padding:13px 14px;
      color:#0f172a;
      transition:.2s ease;
    }
    .field textarea{min-height:132px;resize:vertical}
    .field input:focus,.field textarea:focus{border-color:#60a5fa;background:white;box-shadow:0 0 0 4px rgba(37,99,235,.08)}
    .contact-card{padding:28px;background:linear-gradient(135deg,#0f172a,#1e3a8a);color:white}
    .contact-card p{color:#dbeafe}
    .contact-line{display:flex;gap:12px;align-items:flex-start;padding:14px 0;border-top:1px solid rgba(255,255,255,.12)}
    .contact-dot{width:34px;height:34px;border-radius:13px;background:rgba(255,255,255,.12);display:grid;place-items:center;flex:0 0 auto}
    .site-footer{
      padding:44px 0;
      background:#071225;
      color:#cbd5e1;
      border-top:1px solid rgba(255,255,255,.08);
    }
    .footer-grid{display:grid;grid-template-columns:1.1fr .9fr;gap:26px;align-items:start}
    .footer-brand{display:flex;align-items:center;gap:12px;color:#fff;font-weight:950;font-size:18px}
    .footer-links{display:flex;justify-content:flex-end;gap:12px;flex-wrap:wrap}
    .footer-links a{padding:8px 12px;border-radius:999px;background:rgba(255,255,255,.06);color:#e2e8f0;transition:.2s ease}
    .footer-links a:hover{background:rgba(96,165,250,.18);color:#fff}
    .copyright{margin-top:24px;padding-top:20px;border-top:1px solid rgba(255,255,255,.10);display:flex;justify-content:space-between;gap:18px;flex-wrap:wrap;color:#94a3b8;font-size:13px}
    .empty-state{padding:34px;border-radius:22px;background:#f8fbff;border:1px dashed #c8defa;color:#64748b;text-align:center;font-weight:750}
    @media (max-width:1024px){
      .nav-wrap{flex-wrap:wrap;padding:14px 0}
      .seg-nav{order:3;width:100%}
      .hero-content,.matrix-layout,.info-shell,.case-layout,.plan-wrap,.faq-wrap,.contact-grid{grid-template-columns:1fr}
      .stage{min-height:330px}
      .stats-grid{grid-template-columns:repeat(2,1fr)}
    }
    @media (max-width:768px){
      .site-container{width:min(100% - 28px,1180px)}
      .section{padding:64px 0}
      .section-head{display:block}
      .hero-banner{border-radius:26px;min-height:auto}
      .hero-content{padding:28px}
      .hero-points{grid-template-columns:1fr}
      .burst{right:10px;top:12px;width:96px;height:96px;border-radius:26px;font-size:13px}
      .portal-board{transform:none;margin-top:16px}
      .feature-list,.form-grid{grid-template-columns:1fr}
      .news-item{grid-template-columns:1fr}
      .news-arrow{display:none}
      .footer-grid{grid-template-columns:1fr}
      .footer-links{justify-content:flex-start}
    }
    @media (max-width:520px){
      .brand-text{font-size:15px;max-width:210px}
      .nav-cta{width:100%}
      .nav-wrap{gap:12px}
      .hero{padding-top:28px}
      .hero h1{font-size:36px}
      .hero-lead{font-size:16px}
      .hero-actions .btn{width:100%}
      .stats-grid{grid-template-columns:1fr}
      .case-mini{grid-template-columns:1fr}
      .section-title{font-size:28px}
    }

/* roulang page: article */
:root{
      --primary:#2563eb;
      --primary-dark:#1d4ed8;
      --primary-soft:#eef7ff;
      --ink:#0f172a;
      --muted:#64748b;
      --soft:#f7fbff;
      --line:#dbe7f5;
      --card:#ffffff;
      --shadow:0 18px 45px rgba(15,23,42,.08);
      --shadow-hover:0 24px 60px rgba(37,99,235,.16);
      --radius:24px;
      --radius-sm:16px;
    }
    html{scroll-behavior:smooth}
    body{
      margin:0;
      font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei","Segoe UI",sans-serif;
      color:var(--ink);
      background:
        radial-gradient(circle at 8% 0%, rgba(37,99,235,.10), transparent 30%),
        linear-gradient(180deg,#f8fbff 0%,#ffffff 34%,#f6faff 100%);
      line-height:1.78;
      text-rendering:optimizeLegibility;
      overflow-x:hidden;
    }
    ::selection{background:rgba(37,99,235,.16);color:#0f172a}
    a{color:inherit;text-decoration:none}
    img{max-width:100%;display:block}
    button,input,textarea,select{font:inherit}
    .site-container{
      width:min(1180px,calc(100% - 40px));
      margin-inline:auto;
    }
    .site-header{
      position:sticky;
      top:0;
      z-index:50;
      background:rgba(255,255,255,.88);
      backdrop-filter:blur(18px);
      border-bottom:1px solid rgba(219,231,245,.86);
    }
    .nav-wrap{
      min-height:76px;
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:18px;
    }
    .brand{
      display:flex;
      align-items:center;
      gap:12px;
      min-width:max-content;
      font-weight:900;
      letter-spacing:-.02em;
      color:#0b1b33;
    }
    .brand-mark{
      width:42px;
      height:42px;
      border-radius:15px;
      display:grid;
      place-items:center;
      color:white;
      background:linear-gradient(135deg,#2563eb,#60a5fa);
      box-shadow:0 14px 28px rgba(37,99,235,.24);
      font-weight:900;
      flex:0 0 auto;
    }
    .brand-text{font-size:18px;line-height:1.2}
    .seg-nav{
      display:flex;
      align-items:center;
      gap:8px;
      padding:7px;
      border:1px solid var(--line);
      border-radius:999px;
      background:#f7fbff;
      box-shadow:inset 0 1px 0 rgba(255,255,255,.78);
      overflow-x:auto;
      scrollbar-width:none;
      -ms-overflow-style:none;
      max-width:100%;
    }
    .seg-nav::-webkit-scrollbar{display:none}
    .seg-link{
      display:inline-flex;
      align-items:center;
      justify-content:center;
      min-height:38px;
      padding:10px 16px;
      border-radius:999px;
      color:#38547f;
      font-size:14px;
      font-weight:800;
      transition:.22s ease;
      white-space:nowrap;
      border:1px solid transparent;
    }
    .seg-link:hover,
    .seg-link:focus-visible{
      color:#1d4ed8;
      background:#ffffff;
      border-color:#cfe2ff;
      box-shadow:0 10px 18px rgba(37,99,235,.08);
      transform:translateY(-1px);
      outline:none;
    }
    .seg-link.active{
      color:#ffffff;
      background:linear-gradient(135deg,var(--primary),#60a5fa);
      border-color:transparent;
      box-shadow:0 12px 24px rgba(37,99,235,.18);
    }
    .nav-cta{
      display:inline-flex;
      align-items:center;
      justify-content:center;
      gap:8px;
      border-radius:999px;
      padding:11px 18px;
      background:#0f172a;
      color:#fff;
      font-weight:800;
      box-shadow:0 14px 26px rgba(15,23,42,.16);
      transition:.22s ease;
      white-space:nowrap;
      border:1px solid rgba(15,23,42,.08);
    }
    .nav-cta:hover,
    .nav-cta:focus-visible{
      transform:translateY(-2px);
      background:#1e293b;
      outline:none;
    }
    .nav-cta:active{transform:translateY(0)}
    .section{padding:86px 0}
    .section-tight{padding:64px 0}
    .section-head{
      display:flex;
      align-items:end;
      justify-content:space-between;
      gap:28px;
      margin-bottom:30px;
    }
    .section-kicker{
      display:inline-flex;
      align-items:center;
      gap:8px;
      padding:7px 12px;
      border-radius:999px;
      background:#eaf4ff;
      color:#1d4ed8;
      border:1px solid #d7e9ff;
      font-size:13px;
      font-weight:800;
      margin-bottom:12px;
      letter-spacing:.01em;
    }
    .section-title{
      font-size:clamp(28px,3vw,42px);
      line-height:1.18;
      font-weight:950;
      letter-spacing:-.04em;
      color:#0b1220;
      margin:0;
    }
    .section-desc{
      margin:12px 0 0;
      color:var(--muted);
      font-size:16px;
      max-width:720px;
    }
    .btn{
      display:inline-flex;
      align-items:center;
      justify-content:center;
      gap:8px;
      min-height:46px;
      border-radius:999px;
      padding:12px 20px;
      border:1px solid transparent;
      font-weight:850;
      transition:.22s ease;
      cursor:pointer;
      letter-spacing:-.01em;
    }
    .btn-primary{
      background:var(--primary);
      color:white;
      box-shadow:0 16px 30px rgba(37,99,235,.25);
    }
    .btn-primary:hover{
      background:var(--primary-dark);
      transform:translateY(-2px);
      box-shadow:var(--shadow-hover);
    }
    .btn-secondary{
      background:white;
      color:#1d4ed8;
      border-color:#bfd8ff;
      box-shadow:0 10px 24px rgba(15,23,42,.06);
    }
    .btn-secondary:hover{
      border-color:#93c5fd;
      background:#f5faff;
      transform:translateY(-2px);
    }
    .btn:focus,
    .seg-link:focus,
    input:focus,
    textarea:focus,
    summary:focus{
      outline:3px solid rgba(37,99,235,.25);
      outline-offset:3px;
    }
    .badge{
      display:inline-flex;
      align-items:center;
      gap:6px;
      border:1px solid #d9e8fb;
      background:#f4f9ff;
      color:#315b8d;
      padding:6px 10px;
      border-radius:999px;
      font-size:12px;
      font-weight:800;
      letter-spacing:.01em;
    }
    .card{
      background:var(--card);
      border:1px solid rgba(219,231,245,.95);
      border-radius:var(--radius);
      box-shadow:var(--shadow);
      transition:.25s ease;
    }
    .card:hover{
      transform:translateY(-3px);
      box-shadow:var(--shadow-hover);
      border-color:#c6ddff;
    }
    .hero{
      padding:34px 0 18px;
      position:relative;
      overflow:hidden;
    }
    .article-banner{
      position:relative;
      border:1px solid rgba(191,216,255,.9);
      border-radius:34px;
      overflow:hidden;
      background:
        linear-gradient(110deg,rgba(255,255,255,.96) 0%,rgba(238,247,255,.95) 48%,rgba(37,99,235,.08) 100%),
        radial-gradient(circle at 88% 18%,rgba(96,165,250,.30),transparent 28%);
      box-shadow:0 30px 80px rgba(37,99,235,.11);
    }
    .article-banner:before{
      content:"";
      position:absolute;
      inset:0;
      background-image:linear-gradient(rgba(37,99,235,.06) 1px,transparent 1px),linear-gradient(90deg,rgba(37,99,235,.05) 1px,transparent 1px);
      background-size:32px 32px;
      mask-image:linear-gradient(90deg,#000 0%,transparent 72%);
      pointer-events:none;
    }
    .article-hero{
      position:relative;
      z-index:2;
      display:grid;
      grid-template-columns:minmax(0,1.15fr) minmax(320px,.85fr);
      gap:26px;
      align-items:stretch;
      padding:44px;
    }
    .promo-chip{
      display:inline-flex;
      align-items:center;
      gap:10px;
      border-radius:999px;
      background:#ffffff;
      border:1px solid #cfe2ff;
      padding:8px 14px 8px 8px;
      box-shadow:0 10px 25px rgba(37,99,235,.10);
      font-size:13px;
      font-weight:850;
      color:#1d4ed8;
    }
    .article-hero h1,
    .hero-title{
      margin:18px 0 16px;
      font-size:clamp(34px,4.6vw,62px);
      line-height:1.06;
      letter-spacing:-.06em;
      font-weight:950;
      color:#071225;
    }
    .hero-lead{
      font-size:18px;
      color:#45556d;
      max-width:720px;
      margin:0 0 24px;
      line-height:1.88;
    }
    .hero-actions{
      display:flex;
      flex-wrap:wrap;
      gap:12px;
      margin:26px 0 18px;
    }
    .hero-points{
      display:grid;
      grid-template-columns:repeat(3,minmax(0,1fr));
      gap:12px;
      margin-top:26px;
    }
    .point{
      padding:14px 16px;
      border-radius:20px;
      background:rgba(255,255,255,.74);
      border:1px solid rgba(219,231,245,.96);
      box-shadow:0 12px 24px rgba(15,23,42,.04);
    }
    .point .k{font-size:13px;color:#5d718d;font-weight:700}
    .point .v{margin-top:4px;font-size:17px;font-weight:900;color:#0b1220}
    .stage{
      position:relative;
      min-height:360px;
      display:flex;
      flex-direction:column;
      gap:14px;
      justify-content:space-between;
      padding:24px;
      border-radius:28px;
      background:
        linear-gradient(180deg,rgba(255,255,255,.90) 0%,rgba(247,251,255,.96) 100%);
      border:1px solid rgba(208,225,248,.92);
      box-shadow:0 18px 40px rgba(37,99,235,.10);
    }
    .stage-top{
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:12px;
    }
    .stage-title{
      font-size:18px;
      font-weight:900;
      color:#0b1220;
      letter-spacing:-.02em;
    }
    .stage-grid{
      display:grid;
      grid-template-columns:repeat(2,minmax(0,1fr));
      gap:12px;
    }
    .mini-card{
      border-radius:22px;
      border:1px solid #d9e8fb;
      background:linear-gradient(180deg,#ffffff,#f8fbff);
      padding:16px;
      box-shadow:0 12px 24px rgba(15,23,42,.04);
    }
    .mini-card .mini-label{font-size:12px;color:#6b7f99;font-weight:800}
    .mini-card .mini-value{margin-top:6px;font-size:22px;font-weight:950;color:#102033;line-height:1}
    .mini-card .mini-desc{margin-top:8px;font-size:13px;color:#5a6f8b;line-height:1.6}
    .search-pill{
      width:100%;
      display:flex;
      align-items:center;
      gap:10px;
      padding:14px 16px;
      border-radius:999px;
      background:#fff;
      border:1px solid #cfe2ff;
      box-shadow:0 14px 28px rgba(37,99,235,.08);
    }
    .search-pill input{
      width:100%;
      border:0;
      outline:none;
      background:transparent;
      color:#102033;
      padding:0;
    }
    .search-pill input::placeholder{color:#8aa0ba}
    .search-btn{
      flex:0 0 auto;
      padding:10px 14px;
      border-radius:999px;
      border:1px solid #b8d4ff;
      background:#eff6ff;
      color:#1d4ed8;
      font-weight:800;
      transition:.2s ease;
    }
    .search-btn:hover{transform:translateY(-1px);background:#e8f1ff}
    .content-wrap{
      display:grid;
      grid-template-columns:minmax(0,1fr) 334px;
      gap:28px;
      align-items:start;
    }
    .article-panel,
    .side-panel,
    .contact-panel,
    .faq-panel,
    .update-panel{
      padding:28px;
    }
    .breadcrumb{
      display:flex;
      flex-wrap:wrap;
      gap:10px;
      align-items:center;
      margin-bottom:18px;
      color:#55708f;
      font-size:13px;
      font-weight:700;
    }
    .breadcrumb a{
      color:#2f5fb4;
      padding:4px 0;
    }
    .breadcrumb a:hover{color:#1d4ed8;text-decoration:underline}
    .meta-row{
      display:flex;
      flex-wrap:wrap;
      gap:10px;
      align-items:center;
      margin-bottom:18px;
    }
    .meta-row .badge{
      background:#f7fbff;
      color:#43628a;
    }
    .article-title{
      font-size:clamp(28px,3.8vw,42px);
      line-height:1.16;
      margin:0 0 12px;
      font-weight:950;
      letter-spacing:-.05em;
      color:#0b1220;
    }
    .article-subtitle{
      font-size:17px;
      color:#4f6078;
      margin:0 0 22px;
      line-height:1.88;
      max-width:820px;
    }
    .article-content{
      color:#112033;
      font-size:17px;
      line-height:1.9;
      word-break:break-word;
    }
    .article-content > * + *{margin-top:1.1rem}
    .article-content h2,
    .article-content h3,
    .article-content h4{
      color:#0b1220;
      line-height:1.28;
      letter-spacing:-.03em;
      font-weight:900;
      margin-top:2rem;
      margin-bottom:.8rem;
    }
    .article-content h2{font-size:clamp(22px,2.3vw,30px)}
    .article-content h3{font-size:22px}
    .article-content p{margin:0;color:#1e2a3b}
    .article-content ul,
    .article-content ol{
      padding-left:1.35rem;
      margin:0;
    }
    .article-content li + li{margin-top:.55rem}
    .article-content li::marker{color:#2f5fb4}
    .article-content blockquote{
      margin:1.4rem 0;
      padding:18px 20px;
      border-left:4px solid #7cb0ff;
      border-radius:18px;
      background:#f7fbff;
      color:#35506f;
      box-shadow:inset 0 1px 0 rgba(255,255,255,.7);
    }
    .article-content hr{
      border:0;
      height:1px;
      background:linear-gradient(90deg,transparent,#d7e5f7,transparent);
      margin:1.8rem 0;
    }
    .article-content a{
      color:#1d4ed8;
      text-decoration:underline;
      text-underline-offset:3px;
    }
    .article-content a:hover{color:#1e40af}
    .article-content img,
    .article-content figure{
      max-width:100%;
      border-radius:20px;
    }
    .article-content img{
      height:auto;
      border:1px solid #dbe7f5;
      box-shadow:0 14px 30px rgba(15,23,42,.06);
    }
    .article-content table{
      width:100%;
      border-collapse:collapse;
      overflow:hidden;
      border:1px solid #dbe7f5;
      border-radius:18px;
      box-shadow:0 12px 24px rgba(15,23,42,.05);
      display:block;
    }
    .article-content thead,
    .article-content tbody,
    .article-content tr{display:table;width:100%;table-layout:fixed}
    .article-content th,
    .article-content td{
      padding:12px 14px;
      border-bottom:1px solid #e5eef9;
      text-align:left;
      vertical-align:top;
    }
    .article-content th{
      background:#f5f9ff;
      color:#0f172a;
      font-weight:900;
    }
    .article-content pre{
      overflow:auto;
      padding:18px;
      border-radius:18px;
      background:#0f172a;
      color:#dbeafe;
      box-shadow:0 18px 34px rgba(15,23,42,.16);
    }
    .article-content code{
      font-family:ui-monospace,SFMono-Regular,Menlo,Monaco,Consolas,monospace;
      font-size:.95em;
      background:#eef4ff;
      color:#1e3a8a;
      padding:.12rem .35rem;
      border-radius:8px;
    }
    .article-content pre code{
      background:transparent;
      color:inherit;
      padding:0;
    }
    .callout{
      padding:18px 20px;
      border-radius:20px;
      border:1px solid #d9e8fb;
      background:linear-gradient(180deg,#f8fbff,#ffffff);
      color:#425a75;
      box-shadow:0 12px 24px rgba(15,23,42,.04);
    }
    .side-sticky{position:sticky;top:96px}
    .side-card{
      padding:22px;
      border-radius:24px;
      border:1px solid #dbe7f5;
      background:#fff;
      box-shadow:var(--shadow);
    }
    .side-card + .side-card{margin-top:18px}
    .side-title{
      font-size:18px;
      font-weight:900;
      color:#0b1220;
      margin:0 0 14px;
      letter-spacing:-.03em;
    }
    .side-list{
      display:grid;
      gap:12px;
    }
    .side-list a{
      display:flex;
      align-items:flex-start;
      justify-content:space-between;
      gap:10px;
      padding:14px 15px;
      border-radius:18px;
      background:#f8fbff;
      border:1px solid #e2edf9;
      transition:.22s ease;
    }
    .side-list a:hover{
      transform:translateY(-2px);
      border-color:#c6ddff;
      box-shadow:0 14px 24px rgba(37,99,235,.08);
      background:#fff;
    }
    .side-list strong{
      display:block;
      font-size:15px;
      color:#0f172a;
      line-height:1.35;
    }
    .side-list span{
      display:block;
      margin-top:4px;
      font-size:13px;
      color:#60748e;
      line-height:1.55;
    }
    .side-list .arrow{
      color:#2f5fb4;
      font-weight:900;
      flex:0 0 auto;
    }
    .status-grid{
      display:grid;
      gap:12px;
    }
    .status-item{
      padding:14px 15px;
      border-radius:18px;
      background:linear-gradient(180deg,#f8fbff,#ffffff);
      border:1px solid #e2edf9;
    }
    .status-item .l{font-size:12px;color:#6b7f99;font-weight:800}
    .status-item .r{margin-top:5px;font-size:15px;color:#122033;font-weight:900}
    .update-grid{
      display:grid;
      grid-template-columns:repeat(3,minmax(0,1fr));
      gap:18px;
    }
    .news-card{
      overflow:hidden;
      display:flex;
      flex-direction:column;
      min-height:100%;
    }
    .news-thumb{
      height:160px;
      background:
        linear-gradient(135deg,rgba(37,99,235,.92),rgba(96,165,250,.72)),
        radial-gradient(circle at 80% 20%,rgba(255,255,255,.55),transparent 34%);
      position:relative;
    }
    .news-thumb.alt{
      background:
        linear-gradient(135deg,rgba(15,23,42,.92),rgba(37,99,235,.78)),
        radial-gradient(circle at 80% 20%,rgba(255,255,255,.55),transparent 34%);
    }
    .news-thumb.soft{
      background:
        linear-gradient(135deg,rgba(239,246,255,.95),rgba(191,219,254,.92)),
        radial-gradient(circle at 80% 20%,rgba(37,99,235,.28),transparent 34%);
    }
    .news-body{padding:20px;display:flex;flex-direction:column;gap:12px;flex:1}
    .news-title{
      font-size:20px;
      line-height:1.35;
      font-weight:900;
      letter-spacing:-.03em;
      color:#0b1220;
    }
    .news-desc{
      color:#5b6f8a;
      font-size:15px;
      line-height:1.76;
      flex:1;
      margin:0;
    }
    .news-foot{
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:12px;
      padding-top:4px;
    }
    .news-time{
      font-size:13px;
      color:#7287a2;
      font-weight:700;
    }
    .news-link{
      font-size:14px;
      color:#1d4ed8;
      font-weight:850;
    }
    .news-link:hover{text-decoration:underline}
    .data-grid{
      display:grid;
      grid-template-columns:repeat(4,minmax(0,1fr));
      gap:18px;
    }
    .data-card{
      padding:22px;
      position:relative;
      overflow:hidden;
    }
    .data-num{
      font-size:36px;
      line-height:1;
      font-weight:950;
      letter-spacing:-.05em;
      color:#0b1220;
    }
    .data-label{margin-top:10px;font-size:14px;color:#587089;font-weight:700}
    .data-note{margin-top:8px;font-size:13px;color:#6d819a;line-height:1.65}
    .data-mark{
      position:absolute;
      right:16px;
      top:16px;
      width:42px;
      height:42px;
      border-radius:14px;
      background:#eff6ff;
      border:1px solid #d7e9ff;
      display:grid;
      place-items:center;
      color:#1d4ed8;
      font-weight:900;
    }
    .case-grid{
      display:grid;
      grid-template-columns:1.15fr .85fr;
      gap:18px;
    }
    .case-main,
    .case-side{
      display:flex;
      flex-direction:column;
      gap:18px;
    }
    .case-card{
      overflow:hidden;
      padding:0;
    }
    .case-cover{
      min-height:220px;
      background:
        linear-gradient(135deg,rgba(37,99,235,.92),rgba(147,197,253,.88)),
        radial-gradient(circle at 82% 18%,rgba(255,255,255,.58),transparent 30%);
      position:relative;
    }
    .case-cover.alt{
      background:
        linear-gradient(135deg,rgba(15,23,42,.90),rgba(37,99,235,.86)),
        radial-gradient(circle at 82% 18%,rgba(255,255,255,.58),transparent 30%);
    }
    .case-cover.soft{
      background:
        linear-gradient(135deg,rgba(239,246,255,.96),rgba(219,234,254,.92)),
        radial-gradient(circle at 82% 18%,rgba(37,99,235,.28),transparent 30%);
    }
    .case-body{padding:22px}
    .case-title{
      font-size:22px;
      line-height:1.35;
      font-weight:900;
      color:#0b1220;
      margin:0 0 10px;
      letter-spacing:-.03em;
    }
    .case-desc{margin:0;color:#5b6f8a;font-size:15px;line-height:1.8}
    .case-footer{
      margin-top:16px;
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:12px;
    }
    .case-tags{
      display:flex;
      flex-wrap:wrap;
      gap:8px;
    }
    .case-link{color:#1d4ed8;font-weight:850}
    .case-link:hover{text-decoration:underline}
    .plan-grid{
      display:grid;
      grid-template-columns:repeat(2,minmax(0,1fr));
      gap:18px;
    }
    .plan-card{
      padding:24px;
    }
    .step{
      display:flex;
      gap:14px;
      align-items:flex-start;
    }
    .step-num{
      width:38px;
      height:38px;
      border-radius:14px;
      display:grid;
      place-items:center;
      background:#eaf4ff;
      color:#1d4ed8;
      font-weight:900;
      flex:0 0 auto;
      border:1px solid #d7e9ff;
    }
    .step-title{
      font-size:18px;
      font-weight:900;
      color:#0b1220;
      margin:0;
      letter-spacing:-.02em;
    }
    .step-desc{
      margin:8px 0 0;
      color:#5b6f8a;
      font-size:15px;
      line-height:1.8;
    }
    .plan-aside{
      padding:24px;
      background:linear-gradient(180deg,#f8fbff,#ffffff);
    }
    .plan-aside .panel-title{
      font-size:22px;
      font-weight:950;
      letter-spacing:-.03em;
      color:#0b1220;
      margin:0 0 10px;
    }
    .panel-note{
      color:#5b6f8a;
      font-size:15px;
      line-height:1.8;
      margin:0;
    }
    .faq-list{
      display:grid;
      gap:14px;
    }
    details.faq-item{
      border-radius:22px;
      border:1px solid #dbe7f5;
      background:#fff;
      box-shadow:0 12px 24px rgba(15,23,42,.04);
      overflow:hidden;
    }
    details.faq-item[open]{
      border-color:#c6ddff;
      box-shadow:0 16px 30px rgba(37,99,235,.08);
    }
    details.faq-item summary{
      list-style:none;
      cursor:pointer;
      padding:18px 20px;
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:16px;
      font-weight:900;
      color:#0b1220;
      outline:none;
      user-select:none;
    }
    details.faq-item summary::-webkit-details-marker{display:none}
    .faq-q{
      font-size:16px;
      line-height:1.5;
      letter-spacing:-.02em;
    }
    .faq-arrow{
      width:34px;
      height:34px;
      border-radius:50%;
      display:grid;
      place-items:center;
      background:#f2f7ff;
      border:1px solid #dbe7f5;
      color:#315b8d;
      transition:.22s ease;
      flex:0 0 auto;
    }
    details[open] .faq-arrow{transform:rotate(180deg);background:#eaf4ff;color:#1d4ed8}
    .faq-answer{
      padding:0 20px 18px;
      color:#51657d;
      font-size:15px;
      line-height:1.82;
    }
    .faq-answer p{margin:0}
    .faq-answer p + p{margin-top:10px}
    .faq-answer ul{margin:10px 0 0;padding-left:1.2rem}
    .faq-answer li + li{margin-top:6px}
    .contact-grid{
      display:grid;
      grid-template-columns:minmax(0,1fr) 360px;
      gap:18px;
    }
    .form-grid{
      display:grid;
      gap:14px;
    }
    .field{
      display:grid;
      gap:8px;
    }
    .field label{
      font-size:13px;
      font-weight:850;
      color:#425a75;
    }
    .field input,
    .field textarea{
      width:100%;
      border-radius:16px;
      border:1px solid #d9e8fb;
      background:#f8fbff;
      padding:14px 15px;
      color:#0f172a;
      transition:.22s ease;
      box-shadow:inset 0 1px 0 rgba(255,255,255,.85);
    }
    .field input:hover,
    .field textarea:hover{
      border-color:#bfd8ff;
      background:#fff;
    }
    .field input::placeholder,
    .field textarea::placeholder{color:#8da0b7}
    .field textarea{min-height:150px;resize:vertical}
    .contact-note{
      font-size:13px;
      color:#6b7f99;
      line-height:1.7;
    }
    .contact-box{
      display:grid;
      gap:14px;
    }
    .info-block{
      padding:18px;
      border-radius:20px;
      border:1px solid #dbe7f5;
      background:linear-gradient(180deg,#f8fbff,#ffffff);
    }
    .info-block .t{
      font-size:14px;
      color:#5d718d;
      font-weight:800;
    }
    .info-block .v{
      margin-top:6px;
      font-size:18px;
      color:#0b1220;
      font-weight:950;
      line-height:1.35;
    }
    .info-block .d{
      margin-top:8px;
      color:#5b6f8a;
      font-size:14px;
      line-height:1.7;
    }
    .site-footer{
      margin-top:20px;
      padding:34px 0 26px;
      border-top:1px solid rgba(219,231,245,.9);
      background:linear-gradient(180deg,rgba(248,251,255,.78),rgba(255,255,255,.96));
    }
    .footer-grid{
      display:flex;
      align-items:flex-start;
      justify-content:space-between;
      gap:24px;
      padding:10px 0 18px;
    }
    .footer-brand{
      display:flex;
      align-items:center;
      gap:12px;
      font-weight:900;
      color:#0b1220;
      letter-spacing:-.02em;
    }
    .footer-links{
      display:flex;
      flex-wrap:wrap;
      gap:10px;
      justify-content:flex-end;
      max-width:520px;
    }
    .footer-links a{
      display:inline-flex;
      align-items:center;
      min-height:38px;
      padding:0 14px;
      border-radius:999px;
      border:1px solid #dbe7f5;
      background:#fff;
      color:#38547f;
      font-size:14px;
      font-weight:800;
      transition:.22s ease;
    }
    .footer-links a:hover,
    .footer-links a:focus-visible{
      color:#1d4ed8;
      border-color:#bfd8ff;
      background:#f5faff;
      transform:translateY(-1px);
      outline:none;
    }
    .copyright{
      display:flex;
      flex-wrap:wrap;
      align-items:center;
      justify-content:space-between;
      gap:10px;
      padding-top:18px;
      border-top:1px solid rgba(219,231,245,.9);
      color:#6d819a;
      font-size:13px;
      font-weight:650;
    }
    .empty-state{
      padding:64px 28px;
      text-align:center;
    }
    .empty-state h1{
      margin:0 0 12px;
      font-size:clamp(28px,4vw,44px);
      line-height:1.12;
      font-weight:950;
      color:#0b1220;
      letter-spacing:-.05em;
    }
    .empty-state p{
      margin:0 auto 24px;
      color:#5b6f8a;
      font-size:17px;
      line-height:1.85;
      max-width:680px;
    }
    @media (max-width: 1280px){
      .article-hero{grid-template-columns:1fr .92fr}
      .content-wrap{grid-template-columns:minmax(0,1fr) 304px}
      .contact-grid{grid-template-columns:minmax(0,1fr) 330px}
    }
    @media (max-width: 1024px){
      .article-hero{
        grid-template-columns:1fr;
      }
      .content-wrap,
      .contact-grid,
      .case-grid{
        grid-template-columns:1fr;
      }
      .side-sticky{position:static}
      .update-grid,
      .data-grid,
      .plan-grid{
        grid-template-columns:repeat(2,minmax(0,1fr));
      }
      .hero-points{
        grid-template-columns:1fr;
      }
    }
    @media (max-width: 768px){
      .site-container{width:min(1180px,calc(100% - 28px))}
      .nav-wrap{
        flex-wrap:wrap;
        padding:10px 0;
      }
      .brand{order:1}
      .seg-nav{
        order:3;
        width:100%;
        justify-content:flex-start;
      }
      .nav-cta{order:2}
      .section{padding:68px 0}
      .section-tight{padding:50px 0}
      .article-hero,
      .article-panel,
      .side-panel,
      .contact-panel,
      .faq-panel,
      .update-panel,
      .plan-card,
      .plan-aside{
        padding:22px;
      }
      .stage{min-height:auto}
      .stage-grid,
      .update-grid,
      .data-grid,
      .plan-grid{
        grid-template-columns:1fr;
      }
      .footer-grid{
        flex-direction:column;
      }
      .footer-links{
        justify-content:flex-start;
      }
      .copyright{
        flex-direction:column;
        align-items:flex-start;
      }
      .hero-actions{
        gap:10px;
      }
      .btn{width:100%}
    }
    @media (max-width: 520px){
      .brand-text{font-size:16px}
      .nav-cta{padding:10px 14px}
      .article-banner{border-radius:26px}
      .article-hero{padding:22px}
      .article-hero h1,
      .hero-title{
        font-size:clamp(28px,9vw,40px);
      }
      .hero-lead{font-size:16px}
      .article-title{font-size:clamp(24px,7vw,32px)}
      .section-title{font-size:clamp(24px,7vw,32px)}
      .side-card{padding:18px}
    }