/* roulang page: index */
:root{
      --bg:#080817;
      --bg-2:#111020;
      --panel:#171629;
      --panel-2:#201d34;
      --panel-soft:rgba(255,255,255,.06);
      --text:#f7f3ff;
      --muted:#b9b2cc;
      --muted-2:#8f87a6;
      --line:rgba(255,255,255,.12);
      --line-strong:rgba(255,255,255,.22);
      --purple:#8a5cff;
      --pink:#ff3f9d;
      --orange:#ff9f43;
      --cyan:#55e6ff;
      --gold:#ffd47a;
      --success:#5df2a8;
      --danger:#ff6b86;
      --radius-sm:14px;
      --radius:22px;
      --radius-lg:30px;
      --shadow:0 22px 70px rgba(0,0,0,.38);
      --shadow-soft:0 14px 36px rgba(0,0,0,.24);
      --grad:linear-gradient(135deg,var(--purple),var(--pink) 52%,var(--orange));
      --grad-soft:linear-gradient(135deg,rgba(138,92,255,.22),rgba(255,63,157,.16),rgba(255,159,67,.18));
      --container:1180px;
    }
    *{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(--text);
      background:
        radial-gradient(circle at 10% 0%,rgba(138,92,255,.22),transparent 34%),
        radial-gradient(circle at 92% 12%,rgba(255,63,157,.18),transparent 32%),
        radial-gradient(circle at 50% 100%,rgba(255,159,67,.12),transparent 38%),
        var(--bg);
      line-height:1.75;
      overflow-x:hidden;
    }
    body:before{
      content:"";
      position:fixed;
      inset:0;
      pointer-events:none;
      background-image:linear-gradient(rgba(255,255,255,.025) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.02) 1px,transparent 1px);
      background-size:42px 42px;
      mask-image:linear-gradient(to bottom,rgba(0,0,0,.8),transparent 86%);
      z-index:-1;
    }
    a{color:inherit;text-decoration:none;transition:.22s ease}
    a:hover{color:#fff}
    img{max-width:100%;display:block}
    button,input,textarea,select{font:inherit}
    ::selection{background:rgba(255,63,157,.35);color:#fff}
    .site-container{max-width:var(--container);margin:0 auto;padding:0 22px}
    .navbar-wrap{
      position:sticky;
      top:0;
      z-index:99;
      backdrop-filter:blur(18px);
      background:rgba(8,8,23,.76);
      border-bottom:1px solid var(--line);
    }
    .navbar{padding:14px 0}
    .brand-logo{
      display:flex;
      align-items:center;
      gap:10px;
      color:#fff!important;
      font-weight:900;
      letter-spacing:-.03em;
      max-width:62vw;
    }
    .brand-mark{
      width:40px;height:40px;border-radius:15px;
      background:var(--grad);
      box-shadow:0 12px 32px rgba(255,63,157,.22);
      display:grid;place-items:center;
      position:relative;
      flex:0 0 auto;
    }
    .brand-mark:after{
      content:"9";
      font-weight:900;
      color:#fff;
      font-size:19px;
    }
    .brand-name{white-space:nowrap;overflow:hidden;text-overflow:ellipsis;font-size:17px}
    .navbar-toggler{
      border:1px solid var(--line);
      border-radius:14px;
      color:#fff;
      padding:8px 10px;
      box-shadow:none!important;
    }
    .navbar-toggler-icon{
      filter:invert(1);
      opacity:.85;
    }
    .nav-link{
      color:var(--muted)!important;
      font-weight:700;
      padding:10px 14px!important;
      border-radius:999px;
    }
    .nav-link:hover,.nav-link.active{
      color:#fff!important;
      background:rgba(255,255,255,.08);
    }
    .lang-pill{
      display:inline-flex;
      align-items:center;
      gap:6px;
      border:1px solid var(--line-strong);
      color:#fff;
      background:rgba(255,255,255,.06);
      border-radius:999px;
      padding:8px 12px;
      font-size:13px;
      font-weight:800;
      white-space:nowrap;
    }
    .lang-pill span{color:var(--gold)}
    .btn-brand,.btn-ghost,.btn-darkline{
      border:0;
      border-radius:999px;
      padding:13px 22px;
      font-weight:900;
      display:inline-flex;
      align-items:center;
      justify-content:center;
      gap:8px;
      transition:.24s ease;
      min-height:48px;
    }
    .btn-brand{
      color:#fff;
      background:var(--grad);
      box-shadow:0 14px 32px rgba(255,63,157,.28);
    }
    .btn-brand:hover,.btn-brand:focus{
      color:#fff;
      transform:translateY(-2px);
      box-shadow:0 20px 44px rgba(255,63,157,.36);
    }
    .btn-ghost{
      color:#fff;
      border:1px solid var(--line-strong);
      background:rgba(255,255,255,.06);
    }
    .btn-ghost:hover,.btn-ghost:focus{
      color:#fff;
      background:rgba(255,255,255,.11);
      border-color:rgba(255,255,255,.32);
      transform:translateY(-2px);
    }
    .btn-darkline{
      color:#fff;
      background:#11101f;
      border:1px solid var(--line);
    }
    .btn-darkline:hover{border-color:rgba(85,230,255,.42);transform:translateY(-2px)}
    .badge-soft,.data-badge,.tag{
      display:inline-flex;
      align-items:center;
      gap:6px;
      border-radius:999px;
      font-size:12px;
      line-height:1;
      font-weight:900;
      letter-spacing:.02em;
      white-space:nowrap;
    }
    .badge-soft{
      padding:8px 11px;
      color:#fff;
      background:rgba(255,255,255,.08);
      border:1px solid var(--line);
    }
    .data-badge{
      padding:9px 12px;
      color:#18101f;
      background:linear-gradient(135deg,#fff,#ffe1a3);
    }
    .tag{
      padding:7px 10px;
      color:#f7eaff;
      background:rgba(138,92,255,.14);
      border:1px solid rgba(138,92,255,.28);
    }
    main{position:relative}
    section{padding:76px 0}
    .section-head{
      display:flex;
      align-items:flex-end;
      justify-content:space-between;
      gap:28px;
      margin-bottom:28px;
    }
    .section-kicker{
      color:var(--gold);
      font-weight:900;
      letter-spacing:.08em;
      font-size:13px;
      margin-bottom:8px;
    }
    .section-title{
      font-size:clamp(28px,4vw,46px);
      line-height:1.16;
      font-weight:950;
      letter-spacing:-.05em;
      margin:0;
    }
    .section-desc{
      color:var(--muted);
      max-width:620px;
      margin:12px 0 0;
    }
    .hero{
      padding:34px 0 72px;
    }
    .hero-stage{
      min-height:560px;
      position:relative;
      border:1px solid var(--line);
      border-radius:36px;
      overflow:hidden;
      background:
        linear-gradient(110deg,rgba(8,8,23,.92),rgba(24,18,45,.7) 46%,rgba(255,63,157,.24)),
        radial-gradient(circle at 74% 22%,rgba(255,159,67,.45),transparent 25%),
        radial-gradient(circle at 82% 78%,rgba(138,92,255,.45),transparent 34%);
      box-shadow:var(--shadow);
      padding:44px;
    }
    .hero-stage:before{
      content:"";
      position:absolute;
      inset:22px;
      border-radius:28px;
      border:1px dashed rgba(255,255,255,.16);
      pointer-events:none;
    }
    .hero-grid{
      position:relative;
      z-index:2;
      display:grid;
      grid-template-columns:1.08fr .92fr;
      gap:32px;
      align-items:stretch;
      min-height:470px;
    }
    .hero-copy{
      display:flex;
      flex-direction:column;
      justify-content:center;
      max-width:650px;
    }
    .burst{
      width:max-content;
      transform:rotate(-3deg);
      color:#210819;
      background:linear-gradient(135deg,#fff2a8,#ffbd59);
      border-radius:18px 18px 18px 4px;
      padding:9px 15px;
      font-size:13px;
      font-weight:950;
      box-shadow:0 12px 28px rgba(255,159,67,.25);
      margin-bottom:18px;
    }
    .hero h1{
      font-size:clamp(38px,6.1vw,76px);
      line-height:1.02;
      letter-spacing:-.075em;
      margin:0;
      font-weight:1000;
    }
    .hero h1 .grad-text{
      background:linear-gradient(135deg,#fff,#ffd0ee 35%,#ffb65d);
      -webkit-background-clip:text;
      background-clip:text;
      color:transparent;
    }
    .hero-intro{
      color:#e4dff2;
      font-size:17px;
      max-width:620px;
      margin:22px 0 0;
    }
    .hero-actions{display:flex;gap:14px;flex-wrap:wrap;margin-top:28px}
    .deal-strip{
      display:flex;
      gap:10px;
      flex-wrap:wrap;
      margin-top:28px;
    }
    .deal-item{
      border:1px solid var(--line);
      background:rgba(255,255,255,.07);
      border-radius:999px;
      padding:9px 12px;
      color:#fff;
      font-weight:850;
      font-size:13px;
    }
    .deal-item strong{color:var(--cyan)}
    .hero-board{
      align-self:center;
      border:1px solid rgba(255,255,255,.16);
      background:rgba(7,7,19,.66);
      border-radius:30px;
      padding:20px;
      box-shadow:var(--shadow-soft);
      backdrop-filter:blur(12px);
      position:relative;
      overflow:hidden;
    }
    .hero-board:before{
      content:"限时";
      position:absolute;
      top:18px;right:-32px;
      transform:rotate(36deg);
      padding:7px 42px;
      color:#fff;
      font-weight:950;
      background:var(--grad);
      font-size:12px;
    }
    .timer-card{
      border-radius:24px;
      background:linear-gradient(135deg,rgba(255,255,255,.11),rgba(255,255,255,.04));
      border:1px solid var(--line);
      padding:20px;
      margin-bottom:16px;
    }
    .timer-row{
      display:grid;
      grid-template-columns:repeat(4,1fr);
      gap:10px;
      margin-top:14px;
    }
    .timer-box{
      border-radius:16px;
      background:#0f0e1d;
      border:1px solid var(--line);
      text-align:center;
      padding:12px 6px;
    }
    .timer-box b{display:block;font-size:22px;line-height:1;color:#fff}
    .timer-box span{display:block;color:var(--muted-2);font-size:11px;margin-top:6px}
    .metric-stack{
      display:grid;
      gap:12px;
    }
    .metric-card{
      display:flex;
      justify-content:space-between;
      align-items:center;
      gap:14px;
      border:1px solid var(--line);
      background:rgba(255,255,255,.055);
      border-radius:20px;
      padding:16px;
      transition:.22s ease;
    }
    .metric-card:hover{
      transform:translateY(-3px);
      border-color:rgba(255,212,122,.42);
      background:rgba(255,255,255,.08);
    }
    .metric-label{color:var(--muted);font-weight:750;font-size:13px}
    .metric-value{font-size:24px;font-weight:1000;letter-spacing:-.04em}
    .metric-note{color:var(--success);font-size:12px;font-weight:900}
    .card-modern{
      border:1px solid var(--line);
      background:linear-gradient(180deg,rgba(255,255,255,.075),rgba(255,255,255,.035));
      border-radius:var(--radius);
      box-shadow:var(--shadow-soft);
      transition:.25s ease;
      overflow:hidden;
      height:100%;
    }
    .card-modern:hover{
      transform:translateY(-6px);
      border-color:rgba(255,255,255,.26);
      box-shadow:0 24px 60px rgba(0,0,0,.34);
    }
    .matrix-grid{
      display:grid;
      grid-template-columns:1.25fr .75fr;
      gap:18px;
    }
    .feature-main{
      min-height:310px;
      padding:28px;
      background:
        linear-gradient(135deg,rgba(138,92,255,.28),rgba(255,63,157,.14)),
        rgba(255,255,255,.04);
      display:flex;
      flex-direction:column;
      justify-content:space-between;
    }
    .feature-main h3,.mini-card h3,.vertical-card h3,.proof-card h3{font-size:24px;font-weight:950;letter-spacing:-.035em;margin:16px 0 10px}
    .feature-main p,.mini-card p,.vertical-card p,.proof-card p{color:var(--muted);margin:0}
    .mini-grid{display:grid;grid-template-columns:1fr 1fr;gap:18px;margin-top:18px}
    .mini-card,.vertical-card,.proof-card{padding:22px}
    .icon-dot{
      width:48px;height:48px;border-radius:18px;
      display:grid;place-items:center;
      background:var(--grad-soft);
      border:1px solid var(--line);
      color:#fff;
      font-weight:950;
      font-size:20px;
    }
    .vertical-card{
      display:flex;
      flex-direction:column;
      justify-content:space-between;
      min-height:100%;
      background:linear-gradient(180deg,rgba(255,159,67,.13),rgba(255,255,255,.035));
    }
    .entry-grid{
      display:grid;
      grid-template-columns:repeat(4,1fr);
      gap:14px;
    }
    .entry-tile{
      border:1px solid var(--line);
      background:rgba(255,255,255,.055);
      border-radius:20px;
      padding:18px;
      min-height:128px;
      display:flex;
      flex-direction:column;
      justify-content:space-between;
      transition:.24s ease;
    }
    .entry-tile:hover{
      transform:translateY(-4px);
      background:rgba(255,255,255,.085);
      border-color:rgba(85,230,255,.34);
    }
    .entry-tile b{font-size:17px}
    .entry-tile span{color:var(--muted);font-size:13px}
    .compare-wrap{
      border-radius:var(--radius-lg);
      border:1px solid var(--line);
      background:linear-gradient(135deg,rgba(255,255,255,.07),rgba(255,255,255,.03));
      padding:24px;
      box-shadow:var(--shadow-soft);
    }
    .compare-grid{
      display:grid;
      grid-template-columns:1fr 1fr;
      gap:18px;
    }
    .compare-card{
      border-radius:24px;
      padding:22px;
      border:1px solid var(--line);
      background:#111020;
    }
    .compare-card.after{
      background:linear-gradient(135deg,rgba(138,92,255,.2),rgba(255,63,157,.12),rgba(255,159,67,.1));
      border-color:rgba(255,212,122,.25);
    }
    .compare-card h3{margin:0 0 16px;font-size:24px;font-weight:950}
    .bar-item{margin:16px 0}
    .bar-top{display:flex;justify-content:space-between;color:var(--muted);font-weight:800;font-size:13px;margin-bottom:8px}
    .bar{
      height:12px;border-radius:999px;
      background:rgba(255,255,255,.08);
      overflow:hidden;
      border:1px solid rgba(255,255,255,.06);
    }
    .bar span{display:block;height:100%;border-radius:999px;background:var(--grad)}
    .proof-row{
      display:grid;
      grid-template-columns:repeat(3,1fr);
      gap:18px;
    }
    .quote-wall{
      display:grid;
      grid-template-columns:1fr 1.1fr .9fr;
      gap:16px;
      align-items:start;
    }
    .quote-bubble{
      padding:20px;
      border-radius:26px 26px 26px 8px;
      background:rgba(255,255,255,.07);
      border:1px solid var(--line);
      box-shadow:var(--shadow-soft);
      transition:.24s ease;
    }
    .quote-bubble:hover{transform:translateY(-4px);border-color:rgba(255,63,157,.34)}
    .avatar-line{display:flex;align-items:center;gap:10px;margin-bottom:12px}
    .avatar{
      width:38px;height:38px;border-radius:50%;
      background:var(--grad);
      display:grid;place-items:center;
      font-weight:950;
    }
    .quote-bubble p{color:#e9e3f4;margin:0}
    .quote-bubble small{color:var(--muted)}
    .updates-layout{
      display:grid;
      grid-template-columns:1fr 330px;
      gap:20px;
      align-items:start;
    }
    .updates-list{
      display:grid;
      gap:14px;
    }
    .update-card{
      display:grid;
      grid-template-columns:1fr auto;
      gap:18px;
      padding:20px;
      border:1px solid var(--line);
      border-radius:22px;
      background:rgba(255,255,255,.055);
      transition:.24s ease;
    }
    .update-card:hover{
      transform:translateY(-3px);
      border-color:rgba(255,212,122,.32);
      background:rgba(255,255,255,.08);
    }
    .update-card h3{font-size:19px;margin:10px 0 8px;font-weight:950;letter-spacing:-.02em}
    .update-card p{color:var(--muted);margin:0;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
    .update-meta{display:flex;gap:8px;flex-wrap:wrap;align-items:center}
    .read-link{color:var(--gold);font-weight:950;white-space:nowrap;align-self:center}
    .read-link:hover{color:#fff}
    .side-recommend{
      border:1px solid var(--line);
      border-radius:24px;
      background:linear-gradient(180deg,rgba(255,63,157,.16),rgba(255,255,255,.045));
      padding:22px;
      position:sticky;
      top:92px;
    }
    .side-recommend h3{font-size:22px;font-weight:950;margin:12px 0}
    .side-recommend p{color:var(--muted);margin:0 0 18px}
    .empty-state{
      border:1px dashed var(--line-strong);
      border-radius:22px;
      padding:26px;
      color:var(--muted);
      background:rgba(255,255,255,.04);
    }
    .media-strip{
      display:flex;
      gap:16px;
      overflow-x:auto;
      padding:4px 4px 18px;
      scroll-snap-type:x mandatory;
    }
    .media-card{
      flex:0 0 280px;
      scroll-snap-align:start;
      border:1px solid var(--line);
      border-radius:24px;
      background:rgba(255,255,255,.06);
      overflow:hidden;
      transition:.24s ease;
    }
    .media-card:hover{transform:translateY(-4px);border-color:rgba(85,230,255,.36)}
    .media-cover{
      aspect-ratio:16/9;
      background:
        linear-gradient(135deg,rgba(138,92,255,.82),rgba(255,63,157,.56),rgba(255,159,67,.42)),
        radial-gradient(circle at 30% 20%,rgba(255,255,255,.38),transparent 28%);
      position:relative;
    }
    .media-cover .tag{position:absolute;left:14px;top:14px;background:rgba(0,0,0,.32);backdrop-filter:blur(8px)}
    .media-card div:last-child{padding:18px}
    .media-card h3{font-size:18px;font-weight:950;margin:0 0 8px}
    .media-card p{color:var(--muted);font-size:14px;margin:0}
    .accordion{--bs-accordion-bg:transparent;--bs-accordion-border-color:transparent;--bs-accordion-color:var(--text)}
    .accordion-item{
      border:1px solid var(--line)!important;
      border-radius:22px!important;
      overflow:hidden;
      margin-bottom:12px;
      background:rgba(255,255,255,.055)!important;
    }
    .accordion-button{
      color:#fff!important;
      background:transparent!important;
      box-shadow:none!important;
      font-weight:950;
      padding:20px 22px;
    }
    .accordion-button:focus{outline:3px solid rgba(85,230,255,.22)}
    .accordion-button:not(.collapsed){background:rgba(255,255,255,.05)!important}
    .accordion-button::after{filter:invert(1);opacity:.8}
    .accordion-body{color:var(--muted);padding:0 22px 22px}
    .cta-card{
      border:1px solid rgba(255,255,255,.18);
      border-radius:34px;
      background:
        radial-gradient(circle at 85% 0%,rgba(255,159,67,.26),transparent 28%),
        linear-gradient(135deg,rgba(138,92,255,.24),rgba(255,63,157,.15),rgba(255,255,255,.05));
      padding:30px;
      box-shadow:var(--shadow);
    }
    .cta-grid{
      display:grid;
      grid-template-columns:.9fr 1.1fr;
      gap:24px;
      align-items:start;
    }
    .trust-list{
      display:grid;
      gap:12px;
      margin-top:22px;
    }
    .trust-item{
      display:flex;
      gap:10px;
      color:#e8e1f1;
      padding:12px;
      border-radius:16px;
      background:rgba(255,255,255,.06);
      border:1px solid var(--line);
    }
    .form-panel{
      background:rgba(8,8,23,.58);
      border:1px solid var(--line);
      border-radius:26px;
      padding:22px;
    }
    .form-label{font-weight:850;color:#fff;margin-bottom:8px}
    .form-control,.form-select{
      border-radius:16px;
      border:1px solid var(--line);
      background:rgba(255,255,255,.07);
      color:#fff;
      min-height:48px;
      box-shadow:none!important;
    }
    .form-control::placeholder{color:rgba(255,255,255,.45)}
    .form-control:focus,.form-select:focus{
      border-color:rgba(85,230,255,.6);
      background:rgba(255,255,255,.09);
      outline:3px solid rgba(85,230,255,.15);
      color:#fff;
    }
    textarea.form-control{min-height:118px}
    .site-footer{
      border-top:1px solid var(--line);
      background:rgba(5,5,15,.58);
      padding:34px 0;
    }
    .footer-grid{
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:18px;
      flex-wrap:wrap;
    }
    .footer-name{font-weight:950;color:#fff}
    .footer-text{color:var(--muted);font-size:14px;margin:4px 0 0}
    .footer-links{display:flex;gap:12px;flex-wrap:wrap}
    .footer-links a{
      color:var(--muted);
      border:1px solid var(--line);
      border-radius:999px;
      padding:8px 12px;
      font-size:13px;
    }
    .footer-links a:hover{color:#fff;background:rgba(255,255,255,.08)}
    @media (max-width:1200px){
      .hero-stage{padding:34px}
      .hero-grid{grid-template-columns:1fr .9fr}
      .entry-grid{grid-template-columns:repeat(2,1fr)}
    }
    @media (max-width:992px){
      .navbar-collapse{
        margin-top:12px;
        padding:14px;
        border:1px solid var(--line);
        border-radius:22px;
        background:rgba(16,15,31,.96);
      }
      .hero-grid,.matrix-grid,.compare-grid,.updates-layout,.cta-grid{grid-template-columns:1fr}
      .hero-stage{min-height:auto}
      .hero-copy{max-width:none}
      .side-recommend{position:relative;top:auto}
      .proof-row,.quote-wall{grid-template-columns:1fr}
    }
    @media (max-width:768px){
      section{padding:56px 0}
      .site-container{padding:0 16px}
      .hero{padding-top:22px}
      .hero-stage{padding:24px;border-radius:28px}
      .hero-stage:before{inset:14px;border-radius:22px}
      .hero h1{font-size:40px}
      .hero-intro{font-size:15px}
      .timer-row{grid-template-columns:repeat(4,minmax(62px,1fr));overflow-x:auto}
      .section-head{display:block}
      .mini-grid,.entry-grid{grid-template-columns:1fr}
      .update-card{grid-template-columns:1fr}
      .read-link{align-self:auto}
      .cta-card{padding:22px;border-radius:28px}
    }
    @media (max-width:576px){
      .brand-name{font-size:15px;max-width:64vw}
      .hero-actions .btn-brand,.hero-actions .btn-ghost{width:100%}
      .deal-strip{display:grid;grid-template-columns:1fr 1fr}
      .timer-box b{font-size:18px}
      .metric-card{align-items:flex-start;flex-direction:column}
      .section-title{font-size:30px}
      .update-meta{gap:6px}
      .footer-grid{align-items:flex-start;flex-direction:column}
      .media-card{flex-basis:245px}
    }

/* roulang page: article */
:root{
      --bg:#080817;
      --bg-2:#111020;
      --panel:#171629;
      --panel-2:#201d34;
      --panel-soft:rgba(255,255,255,.06);
      --text:#f7f3ff;
      --muted:#b9b2cc;
      --muted-2:#8f87a6;
      --line:rgba(255,255,255,.12);
      --line-strong:rgba(255,255,255,.22);
      --purple:#8a5cff;
      --pink:#ff3f9d;
      --orange:#ff9f43;
      --cyan:#55e6ff;
      --gold:#ffd47a;
      --success:#5df2a8;
      --danger:#ff6b86;
      --radius-sm:14px;
      --radius:22px;
      --radius-lg:30px;
      --shadow:0 22px 70px rgba(0,0,0,.38);
      --shadow-soft:0 14px 36px rgba(0,0,0,.24);
      --grad:linear-gradient(135deg,var(--purple),var(--pink) 52%,var(--orange));
      --grad-soft:linear-gradient(135deg,rgba(138,92,255,.22),rgba(255,63,157,.16),rgba(255,159,67,.18));
      --container:1180px;
    }
    *{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(--text);
      background:
        radial-gradient(circle at 10% 0%,rgba(138,92,255,.22),transparent 34%),
        radial-gradient(circle at 92% 12%,rgba(255,63,157,.18),transparent 32%),
        radial-gradient(circle at 50% 100%,rgba(255,159,67,.12),transparent 38%),
        var(--bg);
      line-height:1.75;
      overflow-x:hidden;
    }
    body:before{
      content:"";
      position:fixed;
      inset:0;
      pointer-events:none;
      background-image:linear-gradient(rgba(255,255,255,.025) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.02) 1px,transparent 1px);
      background-size:42px 42px;
      mask-image:linear-gradient(to bottom,rgba(0,0,0,.8),transparent 86%);
      z-index:-1;
    }
    a{color:inherit;text-decoration:none;transition:.22s ease}
    a:hover{color:#fff}
    img{max-width:100%;display:block}
    button,input,textarea,select{font:inherit}
    ::selection{background:rgba(255,63,157,.36);color:#fff}
    .site-container{max-width:var(--container);margin:0 auto;padding:0 22px}
    .navbar-wrap{
      position:sticky;
      top:0;
      z-index:99;
      backdrop-filter:blur(18px);
      background:rgba(8,8,23,.76);
      border-bottom:1px solid var(--line);
    }
    .navbar{padding:14px 0}
    .brand-logo{
      display:flex;
      align-items:center;
      gap:10px;
      color:#fff!important;
      font-weight:900;
      letter-spacing:-.03em;
      max-width:62vw;
    }
    .brand-mark{
      width:40px;height:40px;border-radius:15px;
      background:var(--grad);
      box-shadow:0 12px 32px rgba(255,63,157,.22);
      display:grid;place-items:center;
      position:relative;
      flex:0 0 auto;
    }
    .brand-mark:after{
      content:"9";
      font-weight:900;
      color:#fff;
      font-size:19px;
    }
    .brand-name{white-space:nowrap;overflow:hidden;text-overflow:ellipsis;font-size:17px}
    .navbar-toggler{
      border:1px solid var(--line);
      border-radius:14px;
      color:#fff;
      padding:8px 10px;
      box-shadow:none!important;
    }
    .navbar-toggler:focus{outline:3px solid rgba(85,230,255,.25)}
    .navbar-toggler-icon{filter:invert(1);opacity:.85}
    .nav-link{
      color:var(--muted)!important;
      font-weight:700;
      padding:10px 14px!important;
      border-radius:999px;
    }
    .nav-link:hover,.nav-link.active{
      color:#fff!important;
      background:rgba(255,255,255,.08);
    }
    .lang-pill{
      display:inline-flex;
      align-items:center;
      gap:6px;
      border:1px solid var(--line-strong);
      color:#fff;
      background:rgba(255,255,255,.06);
      border-radius:999px;
      padding:8px 12px;
      font-size:13px;
      font-weight:800;
      white-space:nowrap;
    }
    .lang-pill span{color:var(--gold)}
    .lang-pill:hover{background:rgba(255,255,255,.12);border-color:rgba(255,255,255,.34)}
    .btn-brand,.btn-ghost,.btn-darkline{
      border:0;
      border-radius:999px;
      padding:13px 22px;
      font-weight:900;
      display:inline-flex;
      align-items:center;
      justify-content:center;
      gap:8px;
      transition:.24s ease;
      min-height:48px;
    }
    .btn-brand{
      color:#fff;
      background:var(--grad);
      box-shadow:0 14px 32px rgba(255,63,157,.28);
    }
    .btn-brand:hover,.btn-brand:focus{
      color:#fff;
      transform:translateY(-2px);
      box-shadow:0 20px 44px rgba(255,63,157,.36);
    }
    .btn-ghost{
      color:#fff;
      border:1px solid var(--line-strong);
      background:rgba(255,255,255,.06);
    }
    .btn-ghost:hover,.btn-ghost:focus{
      color:#fff;
      background:rgba(255,255,255,.11);
      border-color:rgba(255,255,255,.32);
      transform:translateY(-2px);
    }
    .btn-darkline{
      color:#fff;
      background:#11101f;
      border:1px solid var(--line);
    }
    .btn-darkline:hover{border-color:rgba(85,230,255,.42);transform:translateY(-2px)}
    .btn-brand:focus-visible,.btn-ghost:focus-visible,.btn-darkline:focus-visible,.form-control:focus-visible{
      outline:3px solid rgba(85,230,255,.24);
      outline-offset:3px;
    }
    .badge-soft,.data-badge,.tag{
      display:inline-flex;
      align-items:center;
      gap:6px;
      border-radius:999px;
      font-size:12px;
      line-height:1;
      font-weight:900;
      letter-spacing:.02em;
      white-space:nowrap;
    }
    .badge-soft{
      padding:8px 11px;
      color:#fff;
      background:rgba(255,255,255,.08);
      border:1px solid var(--line);
    }
    .data-badge{
      padding:9px 12px;
      color:#18101f;
      background:linear-gradient(135deg,#fff,#ffe1a3);
    }
    .tag{
      padding:7px 10px;
      color:#f7eaff;
      background:rgba(138,92,255,.14);
      border:1px solid rgba(138,92,255,.28);
    }
    main{position:relative}
    section{padding:72px 0}
    .section-head{
      display:flex;
      align-items:flex-end;
      justify-content:space-between;
      gap:28px;
      margin-bottom:28px;
    }
    .section-kicker{
      color:var(--gold);
      font-weight:900;
      letter-spacing:.08em;
      font-size:13px;
      margin-bottom:8px;
    }
    .section-title{
      font-size:clamp(28px,4vw,46px);
      line-height:1.16;
      font-weight:950;
      letter-spacing:-.05em;
      margin:0;
    }
    .section-desc{
      color:var(--muted);
      max-width:620px;
      margin:12px 0 0;
    }
    .article-hero{padding:38px 0 46px}
    .article-stage{
      position:relative;
      overflow:hidden;
      border:1px solid var(--line);
      border-radius:36px;
      background:
        linear-gradient(115deg,rgba(8,8,23,.96),rgba(30,22,48,.92) 52%,rgba(55,25,45,.88)),
        radial-gradient(circle at 82% 12%,rgba(255,159,67,.28),transparent 32%),
        radial-gradient(circle at 12% 72%,rgba(85,230,255,.16),transparent 34%);
      box-shadow:var(--shadow);
      padding:34px;
    }
    .article-stage:before{
      content:"";
      position:absolute;
      inset:18px;
      border:1px solid rgba(255,255,255,.08);
      border-radius:28px;
      pointer-events:none;
    }
    .breadcrumb-line{
      position:relative;
      z-index:1;
      display:flex;
      align-items:center;
      gap:10px;
      flex-wrap:wrap;
      margin-bottom:26px;
      color:var(--muted);
      font-size:14px;
      font-weight:800;
    }
    .breadcrumb-line a{
      color:#fff;
      padding:7px 10px;
      border-radius:999px;
      background:rgba(255,255,255,.06);
      border:1px solid var(--line);
    }
    .breadcrumb-line a:hover{background:rgba(255,255,255,.12)}
    .hero-grid{
      position:relative;
      z-index:1;
      display:grid;
      grid-template-columns:minmax(0,1fr) 330px;
      gap:30px;
      align-items:stretch;
    }
    .article-title{
      font-size:clamp(34px,5.4vw,64px);
      line-height:1.08;
      font-weight:950;
      letter-spacing:-.07em;
      margin:16px 0 18px;
      max-width:850px;
    }
    .article-summary{
      color:#d9d1ec;
      font-size:17px;
      line-height:1.85;
      max-width:780px;
      margin:0;
    }
    .meta-row{
      display:flex;
      flex-wrap:wrap;
      gap:10px;
      margin-top:22px;
    }
    .support-panel{
      border-radius:28px;
      border:1px solid var(--line-strong);
      background:rgba(255,255,255,.075);
      padding:22px;
      box-shadow:var(--shadow-soft);
      backdrop-filter:blur(12px);
    }
    .progress-ring{
      width:154px;
      height:154px;
      border-radius:50%;
      margin:4px auto 18px;
      display:grid;
      place-items:center;
      background:
        radial-gradient(circle closest-side,#151425 72%,transparent 73%),
        conic-gradient(var(--pink) 0 64%,rgba(255,255,255,.12) 64% 100%);
      box-shadow:inset 0 0 26px rgba(255,255,255,.05),0 20px 42px rgba(0,0,0,.28);
    }
    .progress-ring strong{
      display:block;
      font-size:32px;
      line-height:1;
      letter-spacing:-.04em;
    }
    .progress-ring span{
      display:block;
      color:var(--muted);
      font-size:12px;
      font-weight:900;
      text-align:center;
      margin-top:6px;
    }
    .tier-list{display:grid;gap:10px;margin:18px 0 20px}
    .tier-item{
      display:flex;
      justify-content:space-between;
      gap:12px;
      align-items:center;
      padding:12px 13px;
      border-radius:18px;
      background:rgba(8,8,23,.42);
      border:1px solid var(--line);
    }
    .tier-item span:first-child{font-weight:900;color:#fff}
    .tier-item span:last-child{color:var(--gold);font-size:13px;font-weight:900}
    .summary-strip{
      padding:0 0 38px;
    }
    .strip-card{
      border-radius:var(--radius-lg);
      border:1px solid var(--line);
      background:linear-gradient(135deg,rgba(255,255,255,.08),rgba(255,255,255,.035));
      box-shadow:var(--shadow-soft);
      overflow:hidden;
    }
    .strip-grid{
      display:grid;
      grid-template-columns:repeat(4,1fr);
    }
    .strip-item{
      padding:22px;
      border-right:1px solid var(--line);
    }
    .strip-item:last-child{border-right:0}
    .strip-label{
      color:var(--muted);
      font-size:13px;
      font-weight:800;
      margin-bottom:8px;
    }
    .strip-value{
      font-size:22px;
      font-weight:950;
      letter-spacing:-.04em;
      margin:0;
    }
    .article-main{padding:34px 0 76px}
    .article-layout{
      display:grid;
      grid-template-columns:minmax(0,1fr) 318px;
      gap:30px;
      align-items:start;
    }
    .article-card,.side-card,.faq-card,.cta-card{
      border:1px solid var(--line);
      background:rgba(23,22,41,.88);
      border-radius:var(--radius-lg);
      box-shadow:var(--shadow-soft);
    }
    .article-card{
      padding:34px;
      overflow:hidden;
    }
    .article-content{
      color:#eee9fb;
      font-size:17px;
      line-height:1.92;
    }
    .article-content h2,.article-content h3,.article-content h4{
      color:#fff;
      font-weight:950;
      letter-spacing:-.04em;
      line-height:1.25;
      margin:34px 0 14px;
    }
    .article-content h2{font-size:30px}
    .article-content h3{font-size:24px}
    .article-content h4{font-size:20px}
    .article-content p{margin:0 0 18px}
    .article-content a{
      color:#fff;
      border-bottom:1px solid rgba(255,212,122,.55);
      background:linear-gradient(to top,rgba(255,212,122,.12),transparent 60%);
    }
    .article-content a:hover{color:var(--gold)}
    .article-content ul,.article-content ol{padding-left:1.35em;margin:14px 0 22px}
    .article-content li{margin:8px 0}
    .article-content blockquote{
      margin:26px 0;
      padding:22px 24px;
      border-left:4px solid var(--pink);
      border-radius:0 22px 22px 0;
      background:var(--grad-soft);
      color:#fff;
      font-weight:700;
    }
    .article-content img{
      border-radius:24px;
      border:1px solid var(--line);
      box-shadow:var(--shadow-soft);
      margin:26px auto;
    }
    .article-content hr{
      border:0;
      height:1px;
      background:var(--line);
      margin:34px 0;
      opacity:1;
    }
    .article-content table{
      width:100%;
      border-collapse:separate;
      border-spacing:0;
      overflow:hidden;
      border-radius:20px;
      border:1px solid var(--line);
      margin:24px 0;
    }
    .article-content th,.article-content td{
      padding:14px 16px;
      border-bottom:1px solid var(--line);
      color:#f5efff;
    }
    .article-content th{background:rgba(255,255,255,.08);font-weight:900}
    .article-content tr:last-child td{border-bottom:0}
    .empty-state{
      text-align:center;
      padding:62px 20px;
    }
    .empty-state h2{
      font-size:30px;
      margin:0 0 12px;
      font-weight:950;
    }
    .empty-state p{color:var(--muted);margin-bottom:24px}
    .article-actions{
      margin-top:30px;
      padding-top:26px;
      border-top:1px solid var(--line);
      display:flex;
      flex-wrap:wrap;
      gap:12px;
      align-items:center;
      justify-content:space-between;
    }
    .side-stack{
      position:sticky;
      top:96px;
      display:grid;
      gap:18px;
    }
    .side-card{padding:22px}
    .side-title{
      font-size:18px;
      font-weight:950;
      margin:0 0 14px;
      letter-spacing:-.03em;
    }
    .mini-list{display:grid;gap:12px;margin:0;padding:0;list-style:none}
    .mini-list li{
      padding:13px;
      border-radius:18px;
      background:rgba(255,255,255,.055);
      border:1px solid var(--line);
      transition:.22s ease;
    }
    .mini-list li:hover{
      transform:translateY(-2px);
      border-color:rgba(255,212,122,.34);
      background:rgba(255,255,255,.085);
    }
    .mini-list strong{display:block;color:#fff;font-size:14px;margin-bottom:4px}
    .mini-list span{display:block;color:var(--muted);font-size:13px;line-height:1.55}
    .side-note{
      color:var(--muted);
      font-size:14px;
      margin:0 0 16px;
    }
    .side-metric{
      display:grid;
      grid-template-columns:1fr 1fr;
      gap:10px;
      margin-top:16px;
    }
    .metric-box{
      border-radius:18px;
      padding:14px;
      background:#11101f;
      border:1px solid var(--line);
    }
    .metric-box b{
      display:block;
      font-size:20px;
      color:#fff;
      letter-spacing:-.04em;
    }
    .metric-box span{font-size:12px;color:var(--muted);font-weight:800}
    .faq-section{padding:20px 0 72px}
    .faq-grid{
      display:grid;
      grid-template-columns:.86fr 1.14fr;
      gap:28px;
      align-items:start;
    }
    .faq-card{padding:28px}
    .accordion{display:grid;gap:12px}
    .accordion-item{
      color:var(--text);
      background:rgba(255,255,255,.055);
      border:1px solid var(--line)!important;
      border-radius:20px!important;
      overflow:hidden;
    }
    .accordion-button{
      color:#fff;
      background:transparent;
      box-shadow:none!important;
      font-weight:950;
      padding:18px 20px;
    }
    .accordion-button:not(.collapsed){
      color:#fff;
      background:rgba(255,255,255,.07);
    }
    .accordion-button:focus{box-shadow:none;outline:3px solid rgba(85,230,255,.18)}
    .accordion-button:after{filter:invert(1);opacity:.8}
    .accordion-body{
      color:var(--muted);
      padding:0 20px 20px;
      line-height:1.82;
    }
    .cta-section{padding:0 0 86px}
    .cta-card{
      position:relative;
      overflow:hidden;
      padding:34px;
      background:
        radial-gradient(circle at 86% 16%,rgba(255,212,122,.18),transparent 32%),
        linear-gradient(135deg,rgba(138,92,255,.22),rgba(255,63,157,.14),rgba(255,159,67,.13)),
        rgba(23,22,41,.9);
    }
    .cta-card:before{
      content:"";
      position:absolute;
      width:260px;
      height:260px;
      border-radius:50%;
      right:-80px;
      bottom:-110px;
      background:rgba(85,230,255,.12);
      filter:blur(3px);
    }
    .cta-grid{
      position:relative;
      z-index:1;
      display:grid;
      grid-template-columns:1fr 420px;
      gap:28px;
      align-items:center;
    }
    .cta-title{
      font-size:clamp(28px,4vw,44px);
      line-height:1.16;
      font-weight:950;
      letter-spacing:-.05em;
      margin:12px 0;
    }
    .cta-text{color:#ddd5ef;max-width:650px;margin:0}
    .contact-form{
      display:grid;
      gap:12px;
      padding:18px;
      border-radius:24px;
      border:1px solid var(--line);
      background:rgba(8,8,23,.42);
    }
    .form-control,.form-select{
      color:#fff;
      border:1px solid var(--line);
      background:rgba(255,255,255,.07);
      border-radius:16px;
      min-height:48px;
      padding:12px 14px;
      box-shadow:none!important;
    }
    .form-control::placeholder{color:rgba(247,243,255,.48)}
    .form-control:focus,.form-select:focus{
      color:#fff;
      background:rgba(255,255,255,.1);
      border-color:rgba(85,230,255,.5);
    }
    textarea.form-control{min-height:112px;resize:vertical}
    .site-footer{
      border-top:1px solid var(--line);
      background:rgba(5,5,15,.62);
      padding:34px 0;
    }
    .footer-grid{
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:24px;
    }
    .footer-name{
      font-size:18px;
      font-weight:950;
      color:#fff;
      letter-spacing:-.03em;
      margin-bottom:4px;
    }
    .footer-text{
      color:var(--muted);
      margin:0;
      font-size:14px;
    }
    .footer-links{
      display:flex;
      flex-wrap:wrap;
      justify-content:flex-end;
      gap:10px;
    }
    .footer-links a{
      color:var(--muted);
      border:1px solid var(--line);
      background:rgba(255,255,255,.045);
      border-radius:999px;
      padding:8px 12px;
      font-size:13px;
      font-weight:800;
    }
    .footer-links a:hover{
      color:#fff;
      border-color:rgba(255,255,255,.28);
      background:rgba(255,255,255,.09);
    }
    @media (max-width:1200px){
      .site-container{max-width:1040px}
      .hero-grid{grid-template-columns:minmax(0,1fr) 300px}
      .article-layout{grid-template-columns:minmax(0,1fr) 290px}
    }
    @media (max-width:992px){
      .navbar-collapse{
        margin-top:12px;
        padding:12px;
        border-radius:22px;
        border:1px solid var(--line);
        background:rgba(17,16,32,.96);
      }
      .hero-grid,.article-layout,.faq-grid,.cta-grid{grid-template-columns:1fr}
      .support-panel{max-width:460px}
      .side-stack{position:static}
      .strip-grid{grid-template-columns:repeat(2,1fr)}
      .strip-item:nth-child(2){border-right:0}
      .strip-item:nth-child(-n+2){border-bottom:1px solid var(--line)}
    }
    @media (max-width:768px){
      section{padding:56px 0}
      .article-hero{padding-top:24px}
      .article-stage{border-radius:28px;padding:24px}
      .article-stage:before{display:none}
      .article-card,.cta-card,.faq-card{border-radius:26px;padding:24px}
      .section-head{display:block}
      .article-title{font-size:clamp(31px,10vw,46px)}
      .article-summary{font-size:16px}
      .article-content{font-size:16px;line-height:1.88}
      .article-content h2{font-size:26px}
      .article-content h3{font-size:22px}
      .article-actions{display:grid}
      .footer-grid{display:grid;text-align:left}
      .footer-links{justify-content:flex-start}
    }
    @media (max-width:576px){
      .site-container{padding:0 16px}
      .brand-mark{width:36px;height:36px;border-radius:13px}
      .brand-name{font-size:15px}
      .btn-brand,.btn-ghost,.btn-darkline{width:100%;padding:12px 18px}
      .article-stage{padding:20px;border-radius:24px}
      .meta-row{gap:8px}
      .support-panel{padding:18px;border-radius:24px}
      .progress-ring{width:132px;height:132px}
      .strip-grid{grid-template-columns:1fr}
      .strip-item{border-right:0!important;border-bottom:1px solid var(--line)}
      .strip-item:last-child{border-bottom:0}
      .article-card{padding:20px}
      .article-content table{display:block;overflow-x:auto;white-space:nowrap}
      .cta-card{padding:22px}
      .contact-form{padding:14px}
    }

/* 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}