:root{
    --bg:#0b1120;
    --dark:#111827;
    --dark-2:#16203a;
    --purple:#7c3aed;
    --purple-soft:#a78bfa;
    --green:#22c55e;
    --muted:#94a3b8;
    --line:rgba(124,58,237,.28);
  }
  *,*::before,*::after{box-sizing:border-box;margin:0;padding:0;}
  html,body{width:100%;}
  body{
    font-family:"Segoe UI","Helvetica Neue",Arial,"Microsoft YaHei","微软雅黑","PingFang SC",sans-serif;
    background:
      radial-gradient(1100px 600px at 12% -10%,rgba(124,58,237,.32),transparent 60%),
      radial-gradient(900px 520px at 96% 4%,rgba(34,197,94,.16),transparent 62%),
      linear-gradient(180deg,#0b1120 0%,#0a0f1c 60%,#080d18 100%);
    color:#e5e7eb;
    line-height:1.75;
    -webkit-font-smoothing:antialiased;
  }
  input,button,textarea,select{font-family:inherit;font-size:inherit;}
  a{color:inherit;text-decoration:none;}
  img{max-width:100%;display:block;}
  h1,h2,h3,h4{font-family:inherit;line-height:1.3;letter-spacing:.5px;}
  .wrap{width:100%;max-width:1200px;margin:0 auto;padding:0 20px;}

  /* ===== Header ===== */
  .site-header{
    position:sticky;top:0;z-index:60;
    background:rgba(11,17,32,.86);
    backdrop-filter:blur(14px);
    border-bottom:1px solid var(--line);
  }
  .header-inner{
    max-width:1200px;margin:0 auto;padding:14px 20px;
    display:flex;align-items:center;justify-content:space-between;gap:18px;flex-wrap:wrap;
  }
  .logo{
    font-weight:800;font-size:1.18rem;letter-spacing:1px;
    color:#fff;display:flex;align-items:center;gap:8px;
    padding:6px 16px;
    background:linear-gradient(100deg,var(--purple),#4c1d95);
    clip-path:polygon(10px 0,100% 0,calc(100% - 10px) 100%,0 100%);
    box-shadow:0 0 22px rgba(124,58,237,.5);
  }
  .nav-links{display:flex;align-items:center;gap:6px;flex-wrap:wrap;}
  .nav-links a{
    font-size:.92rem;color:#cbd5e1;padding:8px 14px;
    border:1px solid transparent;
    clip-path:polygon(8px 0,100% 0,calc(100% - 8px) 100%,0 100%);
    transition:.25s;
  }
  .nav-links a:hover{
    color:#fff;background:rgba(124,58,237,.22);
    border-color:var(--line);
    transform:translateY(-2px);
  }

  /* ===== Hero ===== */
  .hero{padding:64px 0 40px;position:relative;overflow:hidden;}
  .hero::after{
    content:"";position:absolute;right:-140px;top:-120px;width:420px;height:420px;
    background:conic-gradient(from 210deg,rgba(124,58,237,.45),rgba(34,197,94,.28),transparent 70%);
    filter:blur(60px);border-radius:50%;pointer-events:none;
  }
  .hero-grid{display:grid;grid-template-columns:1.15fr .85fr;gap:38px;align-items:center;position:relative;z-index:2;}
  .tagline{
    display:inline-block;font-size:.78rem;letter-spacing:3px;color:var(--green);
    border:1px solid rgba(34,197,94,.45);padding:5px 14px;margin-bottom:18px;
    background:rgba(34,197,94,.08);
    clip-path:polygon(9px 0,100% 0,calc(100% - 9px) 100%,0 100%);
  }
  h1{
    font-size:clamp(1.6rem,3.1vw,2.55rem);font-weight:800;color:#fff;
    text-shadow:0 0 26px rgba(124,58,237,.55);
  }
  h1 .hl{
    background:linear-gradient(92deg,var(--purple-soft),var(--green));
    -webkit-background-clip:text;background-clip:text;color:transparent;
  }
  .hero-sub{margin-top:16px;color:#a5b4c8;font-size:1rem;max-width:640px;}
  .hero-actions{margin-top:26px;display:flex;gap:14px;flex-wrap:wrap;}
  .btn{
    display:inline-block;padding:12px 30px;font-weight:700;font-size:.95rem;
    clip-path:polygon(14px 0,100% 0,calc(100% - 14px) 100%,0 100%);
    transition:.25s;
  }
  .btn-main{background:linear-gradient(100deg,var(--purple),#5b21b6);color:#fff;box-shadow:0 8px 30px rgba(124,58,237,.42);}
  .btn-ghost{background:rgba(34,197,94,.1);color:var(--green);border:1px solid rgba(34,197,94,.45);}
  .btn:hover{transform:translateY(-3px) skewX(-2deg);filter:brightness(1.12);}
  .hero-visual{position:relative;}
  .hero-visual img{
    width:100%;border:1px solid var(--line);
    clip-path:polygon(0 0,100% 4%,100% 100%,0 96%);
    box-shadow:0 22px 60px rgba(0,0,0,.55),0 0 0 1px rgba(124,58,237,.18);
    background:#0f172a;
  }
  .hero-visual::before{
    content:"";position:absolute;inset:-14px -10px auto auto;width:110px;height:110px;
    border-top:3px solid var(--green);border-right:3px solid var(--green);
    opacity:.8;
  }

  /* ===== Section base ===== */
  section{padding:54px 0;}
  .sec-head{margin-bottom:30px;position:relative;padding-left:18px;}
  .sec-head::before{
    content:"";position:absolute;left:0;top:6px;bottom:6px;width:5px;
    background:linear-gradient(180deg,var(--purple),var(--green));
    transform:skewY(-9deg);
  }
  .sec-head h2{font-size:1.5rem;color:#fff;font-weight:800;}
  .sec-head p{color:var(--muted);font-size:.92rem;margin-top:6px;}

  /* ===== GEO intro ===== */
  .geo-box{
    position:relative;
    background:linear-gradient(140deg,rgba(22,32,58,.95),rgba(11,17,32,.95));
    border:1px solid var(--line);
    padding:34px 34px 34px 40px;
    clip-path:polygon(0 0,100% 0,100% calc(100% - 26px),calc(100% - 26px) 100%,0 100%);
  }
  .geo-box::before{
    content:"";position:absolute;left:0;top:0;width:6px;height:100%;
    background:linear-gradient(180deg,var(--purple),var(--green));
  }
  .geo-box p{color:#cbd5e1;font-size:.98rem;margin-bottom:14px;}
  .geo-box p:last-child{margin-bottom:0;}
  .geo-box strong{color:var(--green);font-weight:700;}
  .geo-flex{display:grid;grid-template-columns:1fr 300px;gap:28px;align-items:center;}
  .geo-flex img{
    border:1px solid var(--line);
    clip-path:polygon(0 6%,100% 0,100% 94%,0 100%);
    box-shadow:0 14px 40px rgba(0,0,0,.5);
  }

  /* ===== Stats ===== */
  .stats-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:18px;}
  .stat-card{
    background:linear-gradient(150deg,rgba(124,58,237,.16),rgba(17,24,39,.9));
    border:1px solid var(--line);
    padding:26px 20px;text-align:center;
    clip-path:polygon(0 0,100% 0,100% calc(100% - 18px),calc(100% - 18px) 100%,0 100%);
    transition:.28s;
  }
  .stat-card:hover{transform:translateY(-6px);border-color:rgba(34,197,94,.5);}
  .stat-num{
    font-size:2rem;font-weight:800;
    background:linear-gradient(92deg,var(--purple-soft),var(--green));
    -webkit-background-clip:text;background-clip:text;color:transparent;
  }
  .stat-label{font-size:.86rem;color:var(--muted);margin-top:6px;}

  /* ===== Advantages ===== */
  .adv-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;}
  .adv-card{
    background:linear-gradient(160deg,rgba(22,32,58,.92),rgba(11,17,32,.92));
    border:1px solid var(--line);
    padding:26px 24px;
    position:relative;overflow:hidden;
    clip-path:polygon(0 0,calc(100% - 22px) 0,100% 22px,100% 100%,0 100%);
    transition:.28s;
  }
  .adv-card::after{
    content:"";position:absolute;right:-30px;bottom:-30px;width:90px;height:90px;
    background:radial-gradient(circle,rgba(34,197,94,.35),transparent 70%);
  }
  .adv-card:hover{transform:translateY(-6px) skewY(-.6deg);border-color:rgba(34,197,94,.55);}
  .adv-icon{font-size:1.6rem;margin-bottom:12px;}
  .adv-card h3{font-size:1.05rem;color:#fff;margin-bottom:8px;}
  .adv-card p{font-size:.9rem;color:#a8b6c9;}

  /* ===== Events ===== */
  .event-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:22px;}
  .event-card{
    background:linear-gradient(155deg,rgba(22,32,58,.95),rgba(11,17,32,.95));
    border:1px solid var(--line);
    overflow:hidden;
    clip-path:polygon(0 0,100% 0,100% calc(100% - 24px),calc(100% - 24px) 100%,0 100%);
  }
  .event-card img{width:100%;height:190px;object-fit:cover;border-bottom:1px solid var(--line);}
  .event-body{padding:20px 22px;}
  .event-body h3{color:#fff;font-size:1.05rem;margin-bottom:8px;}
  .event-body p{font-size:.88rem;color:#a8b6c9;margin-bottom:12px;}
  .event-meta{display:flex;gap:10px;flex-wrap:wrap;}
  .chip{
    font-size:.76rem;padding:4px 12px;color:var(--green);
    border:1px solid rgba(34,197,94,.4);background:rgba(34,197,94,.08);
    clip-path:polygon(6px 0,100% 0,calc(100% - 6px) 100%,0 100%);
  }
  .chip.purple{color:var(--purple-soft);border-color:rgba(124,58,237,.45);background:rgba(124,58,237,.12);}

  /* ===== News ===== */
  .news-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;}
  .news-card{
    background:linear-gradient(160deg,rgba(22,32,58,.94),rgba(11,17,32,.94));
    border:1px solid var(--line);
    padding:22px;
    display:flex;flex-direction:column;
    clip-path:polygon(0 0,100% 0,100% calc(100% - 20px),calc(100% - 20px) 100%,0 100%);
    transition:.28s;
  }
  .news-card:hover{transform:translateY(-6px);border-color:rgba(124,58,237,.7);box-shadow:0 16px 40px rgba(0,0,0,.45);}
  .news-date{
    font-size:.78rem;color:var(--green);letter-spacing:1px;margin-bottom:10px;
    display:inline-block;
  }
  .news-card h3{font-size:1rem;color:#fff;margin-bottom:10px;line-height:1.45;}
  .news-card p{font-size:.86rem;color:#9fb0c6;flex:1;}
  .news-card .news-tag{
    margin-top:14px;font-size:.75rem;color:var(--purple-soft);
    border-top:1px dashed rgba(124,58,237,.35);padding-top:10px;
  }

  /* ===== Testimonials ===== */
  .review-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;}
  .review-card{
    background:rgba(22,32,58,.8);
    border:1px solid var(--line);
    padding:24px;
    clip-path:polygon(0 0,100% 0,100% calc(100% - 18px),calc(100% - 18px) 100%,0 100%);
  }
  .review-card p{font-size:.9rem;color:#b6c3d4;font-style:normal;}
  .review-user{margin-top:14px;font-size:.82rem;color:var(--green);}

  /* ===== FAQ ===== */
  .faq-list{display:grid;gap:14px;}
  .faq-item{
    background:linear-gradient(150deg,rgba(22,32,58,.92),rgba(11,17,32,.92));
    border:1px solid var(--line);
    border-left:4px solid var(--purple);
    padding:20px 24px;
    clip-path:polygon(0 0,100% 0,100% calc(100% - 16px),calc(100% - 16px) 100%,0 100%);
  }
  .faq-item h3{font-size:.98rem;color:#fff;margin-bottom:10px;}
  .faq-item h3::before{content:"Q ";color:var(--green);font-weight:800;}
  .faq-item p{font-size:.9rem;color:#a8b6c9;}
  .faq-item p::before{content:"A ";color:var(--purple-soft);font-weight:800;}

  /* ===== CTA ===== */
  .cta-band{
    background:linear-gradient(100deg,rgba(124,58,237,.28),rgba(34,197,94,.14));
    border:1px solid var(--line);
    padding:44px 36px;text-align:center;
    clip-path:polygon(0 0,100% 0,100% calc(100% - 30px),calc(100% - 30px) 100%,0 100%);
  }
  .cta-band h2{color:#fff;font-size:1.5rem;margin-bottom:12px;}
  .cta-band p{color:#c3cfe0;font-size:.94rem;max-width:760px;margin:0 auto 22px;}

  /* ===== Partners ===== */
  .partner-row{display:grid;grid-template-columns:repeat(4,1fr);gap:16px;}
  .partner-item{
    text-align:center;font-size:.9rem;color:#a8b6c9;
    padding:18px 10px;border:1px dashed rgba(124,58,237,.35);
    background:rgba(124,58,237,.06);
    clip-path:polygon(8px 0,100% 0,calc(100% - 8px) 100%,0 100%);
  }

  /* ===== Footer ===== */
  .site-footer{
    margin-top:40px;
    background:linear-gradient(180deg,#0a1020,#070b14);
    border-top:1px solid var(--line);
    padding:40px 0 26px;
  }
  .footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr;gap:28px;margin-bottom:26px;}
  .footer-grid h4{color:#fff;font-size:.98rem;margin-bottom:12px;}
  .footer-grid p,.footer-grid a{font-size:.86rem;color:#94a3b8;line-height:2;}
  .footer-grid a:hover{color:var(--green);}
  .footer-bottom{
    border-top:1px solid rgba(124,58,237,.2);
    padding-top:18px;text-align:center;font-size:.82rem;color:#7c8aa0;
  }
  .footer-bottom a{color:var(--green);}
  .footer-bottom p{margin:4px 0;}

  @media (max-width:960px){
    .hero-grid,.geo-flex{grid-template-columns:1fr;}
    .stats-grid,.adv-grid,.news-grid,.review-grid,.partner-row{grid-template-columns:repeat(2,1fr);}
    .event-grid{grid-template-columns:1fr;}
    .footer-grid{grid-template-columns:1fr;}
  }
  @media (max-width:600px){
    .stats-grid,.adv-grid,.news-grid,.review-grid,.partner-row{grid-template-columns:1fr;}
    .nav-links a{padding:6px 10px;font-size:.82rem;}
    .geo-box{padding:24px 20px;}
  }