/* ============================================
     Reset & Base
     ============================================ */
  *,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
  html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
  body{
    font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;
    font-size:16px;line-height:1.6;color:#1a1b2e;background:#ffffff;
    -webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;
    overflow-x:hidden;
  }
  img{max-width:100%;display:block}
  a{color:inherit;text-decoration:none}
  button{font-family:inherit;cursor:pointer;border:none;background:none}
  ul{list-style:none}

  /* ============================================
     Design Tokens
     ============================================ */
  :root{
    --primary:#5B4BFF;
    --primary-deep:#4736E6;
    --primary-soft:#EEEBFF;
    --blue:#2878FF;
    --green:#19C99A;
    --orange:#FF9B5E;
    --pink:#FF6B9D;
    --dark:#17142E;
    --dark-2:#221C3F;
    --bg:#F7F8FC;
    --bg-2:#FAFAFE;
    --line:#E8EAF2;
    --text:#1a1b2e;
    --text-2:#5a5c7a;
    --text-3:#8a8da3;
    --radius:16px;
    --radius-sm:10px;
    --shadow-sm:0 2px 8px rgba(91,75,255,.06);
    --shadow:0 8px 32px rgba(91,75,255,.10);
    --shadow-lg:0 20px 60px rgba(91,75,255,.16);
    --container:1240px;
  }

  .container{max-width:var(--container);margin:0 auto;padding:0 24px}

  /* ============================================
     Typography
     ============================================ */
  .eyebrow{
    display:inline-flex;align-items:center;gap:8px;
    font-size:13px;font-weight:600;letter-spacing:.08em;
    color:var(--primary);text-transform:uppercase;
    padding:6px 14px;border-radius:999px;
    background:var(--primary-soft);
  }
  .eyebrow::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--primary)}

  h1,h2,h3,h4{font-weight:700;line-height:1.2;color:var(--text);letter-spacing:-.02em}
  h1{font-size:clamp(36px,5vw,60px);font-weight:800;text-wrap:balance}
  h2{font-size:clamp(30px,4vw,48px);text-wrap:balance}
  h3{font-size:clamp(22px,2.5vw,30px);text-wrap:balance}
  h4{font-size:20px}

  .section{padding:120px 0;position:relative}
  .section-tight{padding:80px 0}
  .section-head{text-align:center;max-width:860px;margin:0 auto 64px}
  .section-head h2{margin:20px 0 16px;text-wrap:balance}
  .section-head p{font-size:18px;color:var(--text-2);line-height:1.7;text-wrap:balance}

  /* ============================================
     Buttons
     ============================================ */
  .btn{
    display:inline-flex;align-items:center;gap:8px;
    padding:14px 26px;border-radius:12px;
    font-size:15px;font-weight:600;
    transition:all .25s cubic-bezier(.4,0,.2,1);
    white-space:nowrap;
  }
  .btn-primary{
    background:var(--primary);color:#fff;
    box-shadow:0 6px 20px rgba(91,75,255,.35);
  }
  .btn-primary:hover{
    background:var(--primary-deep);
    transform:translateY(-2px);
    box-shadow:0 10px 30px rgba(91,75,255,.45);
  }
  .btn-ghost{
    background:transparent;color:var(--text);
    border:1.5px solid var(--line);
  }
  .btn-ghost:hover{border-color:var(--primary);color:var(--primary);background:var(--primary-soft)}
  .btn-light{
    background:#fff;color:var(--primary);
    box-shadow:0 4px 16px rgba(0,0,0,.08);
  }
  .btn-light:hover{transform:translateY(-2px);box-shadow:0 8px 24px rgba(0,0,0,.12)}
  .btn-arrow{transition:transform .25s ease}
  .btn:hover .btn-arrow{transform:translateX(4px)}

  /* ============================================
     Navigation
     ============================================ */
  .nav{
    position:fixed;top:0;left:0;right:0;z-index:100;
    padding:14px 0;
    background:rgba(255,255,255,.78);
    backdrop-filter:saturate(180%) blur(20px);
    -webkit-backdrop-filter:saturate(180%) blur(20px);
    border-bottom:1px solid transparent;
    transition:all .3s ease;
  }
  .nav.scrolled{
    background:rgba(255,255,255,.92);
    border-bottom-color:var(--line);
    box-shadow:0 2px 20px rgba(0,0,0,.04);
  }
  .nav-inner{display:flex;align-items:center;justify-content:space-between;gap:24px}
  .brand{display:flex;align-items:center;gap:12px;font-weight:700;font-size:18px}
  .brand img{width:38px;height:38px;border-radius:50%}
  .brand-text{display:flex;flex-direction:column;line-height:1.2}
  .brand-text small{font-size:11px;font-weight:500;color:var(--text-3);letter-spacing:.04em}
  .nav-links{display:flex;gap:36px;font-size:15px;font-weight:500;color:var(--text-2)}
  .nav-links a{transition:color .2s ease;position:relative}
  .nav-links a:hover{color:var(--primary)}
  .nav-cta{display:flex;align-items:center;gap:12px}
  .nav-cta .btn{padding:10px 20px;font-size:14px}

  /* ============================================
     Hero
     ============================================ */
  .hero{
    padding:160px 0 100px;
    background:
      radial-gradient(ellipse 800px 500px at 80% 0%, rgba(91,75,255,.12), transparent 60%),
      radial-gradient(ellipse 600px 400px at 20% 100%, rgba(40,120,255,.08), transparent 60%),
      linear-gradient(180deg,#FAFAFE 0%,#ffffff 100%);
    position:relative;
  }
  .hero::before{
    content:"";position:absolute;inset:0;
    background-image:
      linear-gradient(rgba(91,75,255,.04) 1px,transparent 1px),
      linear-gradient(90deg,rgba(91,75,255,.04) 1px,transparent 1px);
    background-size:48px 48px;
    mask-image:radial-gradient(ellipse 800px 600px at 50% 30%, #000 30%, transparent 80%);
    -webkit-mask-image:radial-gradient(ellipse 800px 600px at 50% 30%, #000 30%, transparent 80%);
    pointer-events:none;
  }
  .hero-grid{
    display:grid;grid-template-columns:1.1fr .9fr;gap:60px;align-items:center;
    position:relative;
  }
  .hero-content h1{
    margin:24px 0 24px;
    background:linear-gradient(135deg,#1a1b2e 0%,#5B4BFF 60%,#2878FF 100%);
    -webkit-background-clip:text;background-clip:text;
    -webkit-text-fill-color:transparent;color:transparent;
  }
  .hero-content p.lead{font-size:19px;color:var(--text-2);line-height:1.7;margin-bottom:36px;max-width:540px}
  .hero-actions{display:flex;gap:16px;flex-wrap:wrap;margin-bottom:40px}
  .hero-trust{display:flex;flex-wrap:wrap;gap:20px;color:var(--text-3);font-size:14px}
  .hero-trust span{display:inline-flex;align-items:center;gap:6px}
  .hero-trust span::before{content:"";width:5px;height:5px;border-radius:50%;background:var(--green)}

  /* Hero 入场序列：标题打字时，其他元素先隐藏，打字完成后再依次淡入 */
  .hero-content .eyebrow,
  .hero-content p.lead,
  .hero-content .hero-actions,
  .hero-content .hero-trust,
  .hero-visual{
    opacity:0;transform:translateY(16px);
    transition:opacity .6s cubic-bezier(.22,.61,.36,1),transform .6s cubic-bezier(.22,.61,.36,1);
  }
  .hero-content .eyebrow.in,
  .hero-content p.lead.in,
  .hero-content .hero-actions.in,
  .hero-content .hero-trust.in,
  .hero-visual.in{
    opacity:1;transform:translateY(0);
  }
  .hero-content p.lead.in{transition-delay:.1s}
  .hero-content .hero-actions.in{transition-delay:.2s}
  .hero-content .hero-trust.in{transition-delay:.3s}
  .hero-visual.in{transition-delay:.15s}

  /* Hero Dashboard Mockup */
  .hero-visual{
    position:relative;padding:28px;
    min-height:460px;
  }
  .dashboard{
    position:relative;
    background:#fff;border-radius:20px;
    box-shadow:0 30px 80px rgba(91,75,255,.18),0 8px 24px rgba(0,0,0,.06);
    border:1px solid rgba(91,75,255,.08);
    overflow:hidden;
    transition:transform .5s cubic-bezier(.4,0,.2,1),box-shadow .5s ease;
  }
  .dashboard:hover{transform:translateY(-6px);box-shadow:0 40px 100px rgba(91,75,255,.22),0 12px 30px rgba(0,0,0,.08)}
  .dash-bar{
    display:flex;align-items:center;gap:6px;
    padding:12px 16px;background:linear-gradient(180deg,#F7F8FC,#FAFAFE);
    border-bottom:1px solid var(--line);
  }
  .dash-bar i{width:10px;height:10px;border-radius:50%;background:#E8EAF2}
  .dash-bar i:nth-child(1){background:#FF6B6B}
  .dash-bar i:nth-child(2){background:#FFB454}
  .dash-bar i:nth-child(3){background:#19C99A}
  .dash-bar span{margin-left:auto;font-size:12px;color:var(--text-3);font-weight:500}

  .dash-body{display:grid;grid-template-columns:140px 1fr;height:var(--dash-h,420px)}
  .dash-side{
    background:linear-gradient(180deg,#EEEBFF,#F5F3FF);
    padding:16px 12px;font-size:12px;
  }
  .dash-side-item{
    display:flex;align-items:center;gap:8px;
    padding:8px 10px;border-radius:8px;color:var(--text-2);
    margin-bottom:4px;
    user-select:none;cursor:pointer;
    border:0;background:transparent;width:100%;
    text-align:left;font:inherit;font-size:12px;
    transition:all .2s ease;
  }
  .dash-side-item:hover{background:rgba(91,75,255,.08);color:var(--primary)}
  .dash-side-item.active{background:#fff;color:var(--primary);font-weight:600;box-shadow:0 2px 6px rgba(91,75,255,.1)}
  .dash-side-item .dot{width:6px;height:6px;border-radius:50%;background:currentColor}
  .dash-side-item.active .dot{background:var(--primary)}

  .dash-main{
    padding:20px;position:relative;overflow:hidden;
    display:grid;
  }
  .dash-main > .dash-panel{grid-area:1/1}
  .dash-panel{display:none;animation:dashFade .35s ease;overflow:auto;min-height:0}
  .dash-panel.active{display:block;animation:dashIn .55s cubic-bezier(.22,.61,.36,1) both}
  @keyframes dashIn{
    0%{opacity:0;transform:translateY(18px) scale(.98);filter:blur(2px)}
    100%{opacity:1;transform:translateY(0) scale(1);filter:blur(0)}
  }
  .dash-panel.active > *{animation:panelSubIn .5s both}
  .dash-panel.active > *:nth-child(1){animation-delay:.10s}
  .dash-panel.active > *:nth-child(2){animation-delay:.18s}
  .dash-panel.active > *:nth-child(3){animation-delay:.26s}
  .dash-panel.active > *:nth-child(4){animation-delay:.34s}
  .dash-panel.active > *:nth-child(5){animation-delay:.42s}
  @keyframes dashFade{from{opacity:0;transform:translateY(6px)}to{opacity:1;transform:translateY(0)}}

  /* Diagnostic form */
  .dx-form{display:grid;gap:8px;margin-bottom:14px}
  .dx-field{
    display:flex;align-items:center;gap:8px;
    background:#fff;border:1px solid var(--line);border-radius:8px;
    padding:8px 10px;font-size:12px;color:var(--text-2);
  }
  .dx-field label{font-size:11px;color:var(--text-3);min-width:56px}
  .dx-field input{
    border:0;outline:0;flex:1;background:transparent;
    font:inherit;color:var(--text-1);
  }
  .dx-field input::placeholder{color:var(--text-3)}
  .dx-submit{
    margin-top:4px;background:var(--primary);color:#fff;
    border:0;border-radius:8px;padding:8px 12px;font-size:12px;
    font-weight:600;cursor:pointer;display:inline-flex;
    align-items:center;gap:6px;justify-content:center;
  }

  /* Task list rows */
  .dx-list{display:flex;flex-direction:column;gap:6px}
  .dx-row{
    display:flex;align-items:center;justify-content:space-between;gap:10px;
    padding:8px 10px;background:#fff;border:1px solid var(--line);
    border-radius:8px;font-size:12px;
  }
  .dx-row-l{display:flex;align-items:center;gap:8px;min-width:0}
  .dx-row-l strong{color:var(--text-1);font-weight:600;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;max-width:170px}
  .dx-row-l span{color:var(--text-3);font-size:11px}
  .dx-tag{
    display:inline-flex;align-items:center;gap:4px;
    padding:3px 8px;border-radius:20px;font-size:10px;font-weight:600;
    white-space:nowrap;
  }
  .dx-tag.ok{background:rgba(25,201,154,.12);color:var(--green)}
  .dx-tag.run{background:rgba(40,120,255,.12);color:var(--blue)}
  .dx-tag.wait{background:rgba(255,155,94,.15);color:var(--orange)}
  .dx-tag.fail{background:rgba(239,68,68,.12);color:#EF4444}
  .dx-tag .pulse{width:6px;height:6px;border-radius:50%;background:currentColor;animation:pulse 1.4s ease-in-out infinite}
  @keyframes pulse{0%,100%{opacity:1}50%{opacity:.35}}

  /* Channels grid */
  .dx-channels{display:grid;grid-template-columns:repeat(4,1fr);gap:8px;margin-bottom:14px}
  .dx-channel{
    background:#fff;border:1px solid var(--line);border-radius:8px;
    padding:10px 8px;text-align:center;
  }
  .dx-channel .ico{font-size:18px;display:block;margin-bottom:4px}
  .dx-channel .nm{font-size:11px;color:var(--text-2);font-weight:600}
  .dx-channel .ct{font-size:10px;color:var(--text-3);margin-top:2px}

  /* Progress bar (mini) */
  .mini-bar{height:6px;background:#F0EFFB;border-radius:99px;overflow:hidden;margin-top:6px}
  .mini-bar > i{display:block;height:100%;background:linear-gradient(90deg,var(--primary),var(--blue));border-radius:99px}
  .dash-row{display:flex;align-items:center;justify-content:space-between;margin-bottom:16px}
  .dash-title{font-size:13px;font-weight:600;color:var(--text-2)}
  .dash-pill{font-size:11px;padding:3px 10px;border-radius:999px;background:var(--primary-soft);color:var(--primary);font-weight:600}

  .dash-platforms{display:flex;flex-wrap:wrap;gap:6px;margin-bottom:20px}
  .dash-platform{
    display:inline-flex;align-items:center;gap:4px;
    font-size:11px;padding:4px 10px;border-radius:8px;
    background:#fff;border:1px solid var(--line);color:var(--text-2);font-weight:500;
  }
  .dash-platform.active{background:var(--primary);color:#fff;border-color:var(--primary)}
  .dash-platform.active::before{content:"";width:5px;height:5px;border-radius:50%;background:#fff}

  .dash-score{
    display:grid;grid-template-columns:1fr 1fr;gap:12px;margin-bottom:20px;
  }
  .dash-card{
    background:linear-gradient(135deg,#FAFAFE,#F7F8FC);
    border:1px solid var(--line);border-radius:12px;padding:14px;
  }
  .dash-card-label{font-size:11px;color:var(--text-3);margin-bottom:6px}
  .dash-card-val{font-size:24px;font-weight:800;color:var(--primary)}
  .dash-card-val em{font-size:13px;font-style:normal;color:var(--green);margin-left:4px;font-weight:600}
  .dash-card-val.orange{color:var(--orange)}

  .dash-chart{
    background:#fff;border:1px solid var(--line);border-radius:12px;padding:16px;
    height:140px;position:relative;overflow:hidden;
  }
  .chart-grid{position:absolute;inset:30px 16px 24px 16px;display:flex;justify-content:space-between;align-items:flex-end;gap:6px}
  .chart-bar{
    flex:1;background:linear-gradient(180deg,var(--primary),var(--blue));
    border-radius:4px 4px 0 0;min-height:8px;
    animation:barRise 1s cubic-bezier(.4,0,.2,1) both;
  }
  @keyframes barRise{from{height:0}to{height:var(--h)}}
  .chart-legend{display:flex;justify-content:space-between;margin-top:auto;font-size:10px;color:var(--text-3)}

  /* Floating badge */
  .floating-badge{
    position:absolute;
    background:#fff;border-radius:14px;
    padding:12px 16px;box-shadow:0 10px 30px rgba(0,0,0,.10);
    border:1px solid var(--line);
    display:flex;align-items:center;gap:10px;
    font-size:13px;font-weight:600;
    animation:float 4s ease-in-out infinite;
    z-index:5;pointer-events:none;
  }
  .floating-badge.tl{top:8px;left:8px;color:var(--primary)}
  .floating-badge.br{bottom:8px;right:8px;color:var(--green);animation-delay:2s}
  .floating-badge .ico{width:32px;height:32px;border-radius:8px;display:flex;align-items:center;justify-content:center}
  .floating-badge.tl .ico{background:var(--primary-soft)}
  .floating-badge.br .ico{background:#E0F8F1}

  @keyframes float{
    0%,100%{transform:translateY(0)}
    50%{transform:translateY(-10px)}
  }

  /* ============================================
     Value Stats
     ============================================ */
  .value{background:var(--bg)}
  .value-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
  .value-card{
    background:#fff;border-radius:var(--radius);padding:32px 24px;
    border:1px solid var(--line);transition:all .3s ease;
    position:relative;overflow:hidden;
  }
  .value-card:hover{transform:translateY(-4px);box-shadow:var(--shadow);border-color:transparent}
  .value-card::after{
    content:"";position:absolute;top:0;right:0;width:80px;height:80px;
    background:radial-gradient(circle at top right,rgba(91,75,255,.08),transparent 70%);
    border-radius:50%;
  }
  .value-card .num{
    font-size:42px;font-weight:800;
    background:linear-gradient(135deg,var(--primary),var(--blue));
    -webkit-background-clip:text;background-clip:text;color:transparent;
    line-height:1;margin-bottom:12px;
  }
  .value-card h4{font-size:17px;margin-bottom:8px}
  .value-card p{font-size:14px;color:var(--text-2);line-height:1.6}

  /* ============================================
     Capabilities (Tabbed)
     ============================================ */
  .cap-tabs{
    display:grid;grid-template-columns:repeat(4,1fr);gap:12px;
    background:#fff;padding:8px;border-radius:18px;
    border:1px solid var(--line);box-shadow:var(--shadow-sm);
    margin-bottom:48px;
  }
  .cap-tab{
    display:flex;align-items:center;gap:12px;
    padding:18px 20px;border-radius:12px;
    cursor:pointer;transition:all .25s ease;
    text-align:left;
  }
  .cap-tab:hover{color:var(--primary)}
  .cap-tab.active{
    color:#fff;
    transition:color .25s ease .2s;
  }
  .cap-tab-num{
    font-size:14px;font-weight:800;
    width:32px;height:32px;border-radius:8px;
    background:rgba(255,255,255,.15);display:flex;align-items:center;justify-content:center;
    flex-shrink:0;
    transition:background .25s ease .2s,color .25s ease .2s;
  }
  .cap-tab:not(.active) .cap-tab-num{background:var(--primary-soft);color:var(--primary)}
  .cap-tab.active .cap-tab-num{background:rgba(255,255,255,.2);color:#fff}
  .cap-tab-text strong{display:block;font-size:15px;font-weight:700}
  .cap-tab-text small{display:block;font-size:12px;opacity:.7;margin-top:2px}

  .cap-panel{display:none;grid-template-columns:1.1fr .9fr;gap:60px;align-items:center}
  .cap-panel.active{display:grid;animation:panelIn .65s cubic-bezier(.22,.61,.36,1) both}
  @keyframes panelIn{
    0%{opacity:0;transform:translateY(28px) scale(.96);filter:blur(4px)}
    60%{filter:blur(0)}
    100%{opacity:1;transform:translateY(0) scale(1);filter:blur(0)}
  }
  .cap-panel.active .cap-content{animation:panelSubIn .55s .15s cubic-bezier(.22,.61,.36,1) both}
  .cap-panel.active .cap-visual{animation:panelSubIn .65s .25s cubic-bezier(.22,.61,.36,1) both}
  .cap-panel.active .cap-feat{animation:panelSubIn .45s both}
  .cap-panel.active .cap-feat:nth-child(1){animation-delay:.30s}
  .cap-panel.active .cap-feat:nth-child(2){animation-delay:.36s}
  .cap-panel.active .cap-feat:nth-child(3){animation-delay:.42s}
  .cap-panel.active .cap-feat:nth-child(4){animation-delay:.48s}
  .cap-panel.active .cap-feat:nth-child(5){animation-delay:.54s}
  .cap-panel.active .cap-feat:nth-child(6){animation-delay:.60s}
  @keyframes panelSubIn{
    0%{opacity:0;transform:translateY(14px)}
    100%{opacity:1;transform:translateY(0)}
  }

  .cap-content h3{margin-bottom:16px}
  .cap-content>p{font-size:17px;color:var(--text-2);line-height:1.7;margin-bottom:28px}
  .cap-features{display:grid;grid-template-columns:1fr 1fr;gap:12px;margin-bottom:32px}
  .cap-feat{
    display:flex;align-items:flex-start;gap:10px;
    padding:14px 16px;background:var(--bg);border-radius:10px;
    font-size:14px;font-weight:500;
  }
  .cap-feat::before{
    content:"";width:6px;height:6px;border-radius:50%;
    background:var(--primary);margin-top:8px;flex-shrink:0;
  }

  .cap-visual{
    background:linear-gradient(135deg,#EEEBFF,#F5F3FF);
    border-radius:20px;padding:40px;
    position:relative;overflow:hidden;min-height:420px;
  }
  .cap-visual::before{
    content:"";position:absolute;top:-50%;right:-30%;width:400px;height:400px;
    background:radial-gradient(circle,rgba(91,75,255,.15),transparent 70%);
    border-radius:50%;
  }
  .cap-mock{
    position:relative;background:#fff;border-radius:14px;
    box-shadow:0 20px 50px rgba(91,75,255,.15);
    padding:24px;min-height:340px;
  }
  .cap-mock-head{display:flex;align-items:center;gap:10px;margin-bottom:16px}
  .cap-mock-illo{
    width:36px;height:36px;border-radius:10px;
    display:flex;align-items:center;justify-content:center;
    box-shadow:0 4px 10px rgba(91,75,255,.15);
  }
  .cap-mock-title{font-size:13px;font-weight:700;color:var(--text)}
  .cap-mock-row{
    display:flex;justify-content:space-between;align-items:center;
    padding:11px 12px;background:var(--bg);border-radius:8px;
    margin-bottom:8px;font-size:13px;
  }
  .cap-mock-row:last-of-type{margin-bottom:0}
  .cap-mock-label{color:var(--text-3);font-size:12px}
  .cap-mock-val{color:var(--text);font-weight:600;font-size:13px}
  .cap-mock-cta{
    margin-top:14px;padding:14px;text-align:center;
    background:var(--primary);color:#fff;border-radius:10px;
    font-weight:700;font-size:14px;
    box-shadow:0 8px 20px rgba(91,75,255,.25);
  }
  .cap-mock-tip{
    margin-top:14px;padding:11px 14px;border-radius:10px;
    background:#F4F1FF;border-left:3px solid var(--primary);
    font-size:12px;color:var(--text-2);
  }
  .cap-mock-tip.success{background:#E0F8F1;border-left-color:var(--green);color:#0E8C66}
  .cap-mock-tip strong{color:var(--green);font-weight:800}

  .cap-stats-grid{display:grid;grid-template-columns:1fr 1fr;gap:10px;margin-bottom:6px}
  .cap-stat{
    padding:14px 12px;background:var(--bg);border-radius:10px;text-align:center;
    transition:all .25s ease;
  }
  .cap-stat:hover{background:#EEEBFF;transform:translateY(-2px)}
  .cap-stat-num{font-size:22px;font-weight:800;line-height:1.2}
  .cap-stat-num.primary{color:var(--primary)}
  .cap-stat-num.blue{color:var(--blue)}
  .cap-stat-num.green{color:var(--green)}
  .cap-stat-num.orange{color:var(--orange)}
  .cap-stat-label{font-size:11px;color:var(--text-3);margin-top:4px}
  .mock-row{display:flex;align-items:center;justify-content:space-between;padding:10px 0;border-bottom:1px solid var(--line)}
  .mock-row:last-child{border-bottom:none}
  .mock-label{font-size:13px;color:var(--text-2);font-weight:500}
  .mock-val{font-size:13px;color:var(--primary);font-weight:700}

  /* ============================================
     Demo Flow (7 steps)
     ============================================ */
  .demo{background:linear-gradient(180deg,#ffffff 0%,var(--bg) 100%)}
  .demo-stage{
    display:grid;grid-template-columns:300px 1fr;gap:40px;
    background:#fff;border-radius:24px;padding:48px;
    box-shadow:var(--shadow);border:1px solid var(--line);
  }
  .demo-steps{display:flex;flex-direction:column;gap:8px}
  .demo-step{
    display:flex;align-items:center;gap:14px;
    padding:14px 16px;border-radius:12px;cursor:pointer;
    transition:all .2s ease;border:1px solid transparent;
  }
  .demo-step:hover{background:var(--bg)}
  .demo-step.active{
    background:var(--primary-soft);border-color:var(--primary);
  }
  .demo-step-num{
    width:32px;height:32px;border-radius:10px;
    background:#fff;color:var(--text-3);font-weight:700;
    display:flex;align-items:center;justify-content:center;
    border:1px solid var(--line);flex-shrink:0;
    transition:all .25s ease;
  }
  .demo-step.active .demo-step-num{background:var(--primary);color:#fff;border-color:var(--primary)}
  .demo-step-text strong{display:block;font-size:14px;font-weight:600}
  .demo-step-text small{display:block;font-size:12px;color:var(--text-3);margin-top:2px}

  .demo-view{
    background:linear-gradient(135deg,#F7F8FC,#FAFAFE);
    border-radius:16px;padding:32px;min-height:400px;
    border:1px solid var(--line);position:relative;
  }
  .demo-screen{display:none;animation:fadeIn .4s ease}
  .demo-screen.active{display:block;animation:demoIn .6s cubic-bezier(.22,.61,.36,1) both}
  @keyframes demoIn{
    0%{opacity:0;transform:translateY(24px) scale(.97);filter:blur(3px)}
    60%{filter:blur(0)}
    100%{opacity:1;transform:translateY(0) scale(1);filter:blur(0)}
  }
  .demo-screen.active h4{animation:panelSubIn .5s .15s cubic-bezier(.22,.61,.36,1) both}
  .demo-screen.active p{animation:panelSubIn .5s .22s cubic-bezier(.22,.61,.36,1) both}
  .demo-screen.active .demo-mock{animation:panelSubIn .6s .30s cubic-bezier(.22,.61,.36,1) both}
  .demo-screen.active .demo-mock > *{animation:panelSubIn .45s both}
  .demo-screen.active .demo-mock > *:nth-child(1){animation-delay:.38s}
  .demo-screen.active .demo-mock > *:nth-child(2){animation-delay:.44s}
  .demo-screen.active .demo-mock > *:nth-child(3){animation-delay:.50s}
  .demo-screen.active .demo-mock > *:nth-child(4){animation-delay:.56s}
  .demo-screen.active .demo-mock > *:nth-child(5){animation-delay:.62s}
  .demo-screen.active .demo-mock > *:nth-child(6){animation-delay:.68s}
  .demo-screen h4{font-size:18px;margin-bottom:8px;color:var(--primary)}
  .demo-screen p{color:var(--text-2);font-size:14px;line-height:1.7;margin-bottom:20px}

  /* Demo screen header with SVG illo */
  .demo-screen-head{display:flex;align-items:flex-start;gap:16px;margin-bottom:20px}
  .demo-screen-illo{
    flex-shrink:0;
    width:56px;height:56px;border-radius:14px;
    display:flex;align-items:center;justify-content:center;
    background:linear-gradient(135deg,#F4F1FF,#E9F1FF);
    box-shadow:0 6px 16px rgba(91,75,255,.10);
  }
  .demo-screen-title{font-size:14px;font-weight:600;color:var(--text);margin-bottom:14px}

  /* demo meta chips */
  .demo-meta{display:flex;flex-wrap:wrap;gap:8px;margin-top:6px}
  .demo-chip{
    display:inline-flex;align-items:center;gap:6px;
    padding:5px 10px;border-radius:20px;font-size:12px;font-weight:500;
    background:var(--bg);color:var(--text-2);
  }
  .demo-chip .dot{width:6px;height:6px;border-radius:50%}
  .dot-blue{background:var(--blue)}
  .dot-green{background:var(--green)}
  .dot-purple{background:var(--primary)}

  /* demo progress */
  .demo-progress{margin-bottom:14px}
  .demo-progress-label{display:flex;justify-content:space-between;font-size:13px;color:var(--text-2);margin-bottom:6px}
  .demo-progress-label .text-primary{color:var(--primary);font-weight:700}
  .demo-progress-bar{
    height:8px;background:var(--bg);border-radius:4px;overflow:hidden;
  }
  .demo-progress-bar > span{
    display:block;height:100%;
    background:linear-gradient(90deg,var(--primary),var(--blue));
    border-radius:4px;
    transition:width .8s cubic-bezier(.22,.61,.36,1);
  }

  /* task list */
  .demo-task-list{display:flex;flex-direction:column;gap:8px;margin-top:6px}
  .demo-task{
    display:grid;grid-template-columns:28px 80px 1fr;align-items:center;gap:10px;
    padding:10px 12px;background:var(--bg);border-radius:8px;font-size:13px;
  }
  .task-status{width:22px;height:22px;border-radius:50%;display:flex;align-items:center;justify-content:center;font-weight:700}
  .task-status.done{background:#E0F8F1;color:#0E8C66}
  .task-status.running{background:#FFF8E8;color:#B8851E;animation:pulse 1.6s ease-in-out infinite}
  .task-status.pending{background:#F0F0F5;color:#9ca3af}
  .task-name{font-weight:600;color:var(--text)}
  .task-meta{color:var(--text-3);font-size:12px;text-align:right}
  @keyframes pulse{0%,100%{opacity:1}50%{opacity:.5}}

  /* demo bars */
  .demo-bars{display:flex;flex-direction:column;gap:10px;margin:14px 0}
  .demo-bar-row{display:grid;grid-template-columns:80px 1fr 40px;align-items:center;gap:10px;font-size:13px}
  .demo-bar-label{color:var(--text-2);font-weight:500}
  .demo-bar{height:8px;background:var(--bg);border-radius:4px;overflow:hidden}
  .demo-bar > span{display:block;height:100%;background:linear-gradient(90deg,var(--primary),var(--blue));border-radius:4px;transition:width 1s cubic-bezier(.22,.61,.36,1)}
  .demo-bar-val{font-weight:700;color:var(--primary);text-align:right;font-size:12px}

  /* demo tip / hint banner */
  .demo-tip{
    display:flex;align-items:center;gap:8px;
    padding:10px 14px;border-radius:10px;font-size:13px;color:var(--text-2);
    background:#F4F1FF;border-left:3px solid var(--primary);
  }
  .demo-tip.warn{background:#FFF8E8;border-left-color:var(--orange);color:#B8851E}
  .demo-tip.success{background:#E0F8F1;border-left-color:var(--green);color:#0E8C66}
  .demo-tip-icon{font-size:14px}

  /* content cards (step 5) */
  .demo-content-grid{display:grid;grid-template-columns:1fr 1fr;gap:10px;margin-top:6px}
  .demo-content-card{
    padding:14px;border-radius:10px;background:var(--bg);
    border:1px solid transparent;transition:all .25s ease;
  }
  .demo-content-card:hover{border-color:var(--primary);transform:translateY(-2px)}
  .demo-content-tag{
    display:inline-block;font-size:11px;font-weight:600;
    padding:3px 8px;border-radius:6px;margin-bottom:8px;
  }
  .tag-purple{background:rgba(91,75,255,.12);color:var(--primary)}
  .tag-blue{background:rgba(40,120,255,.12);color:var(--blue)}
  .tag-green{background:rgba(25,201,154,.14);color:#0E8C66}
  .tag-orange{background:rgba(255,155,94,.15);color:#C26835}
  .demo-content-title{font-size:13px;font-weight:600;color:var(--text);margin-bottom:4px}
  .demo-content-meta{font-size:11px;color:var(--text-3)}

  /* channel grid (step 6) */
  .demo-channel-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:10px;margin:6px 0 14px}
  .demo-channel{
    display:flex;flex-direction:column;align-items:center;gap:4px;
    padding:14px 8px;border-radius:10px;background:var(--bg);
    transition:all .25s ease;
  }
  .demo-channel:hover{background:#EEEBFF;transform:translateY(-2px)}
  .ch-icon{
    width:36px;height:36px;border-radius:10px;
    display:flex;align-items:center;justify-content:center;
    color:#fff;font-size:12px;font-weight:700;
  }
  .ch-b2b{background:linear-gradient(135deg,#5B4BFF,#2878FF)}
  .ch-news{background:linear-gradient(135deg,#2878FF,#19C99A)}
  .ch-media{background:linear-gradient(135deg,#FF9B5E,#FFB86B)}
  .ch-personal{background:linear-gradient(135deg,#19C99A,#2878FF)}
  .ch-site{background:linear-gradient(135deg,#5B4BFF,#FF9B5E)}
  .ch-pr{background:linear-gradient(135deg,#7B6BFF,#19C99A)}
  .ch-name{font-size:12px;font-weight:600;color:var(--text);margin-top:4px}
  .ch-count{font-size:11px;color:var(--primary);font-weight:700}

  /* step 7 stats */
  .demo-stats{display:grid;grid-template-columns:repeat(3,1fr);gap:8px;margin:14px 0}
  .demo-stat{
    text-align:center;padding:12px 8px;
    background:var(--bg);border-radius:10px;
  }
  .demo-stat-label{display:block;font-size:11px;color:var(--text-3);margin-bottom:4px}
  .demo-stat-val{display:block;font-size:18px;font-weight:800;color:var(--primary)}
  .demo-stat-val.green{color:var(--green)}

  .demo-mock{
    background:#fff;border-radius:12px;padding:24px;
    border:1px solid var(--line);min-height:200px;
  }
  .demo-mock-form{display:grid;gap:14px}
  .demo-mock-form label{font-size:12px;color:var(--text-2);font-weight:500;margin-bottom:4px;display:block}
  .demo-input{
    padding:10px 14px;border:1px solid var(--line);border-radius:8px;
    font-size:13px;background:#fff;color:var(--text);
  }

  /* ============================================
     Scenarios
     ============================================ */
  .scenarios{background:var(--bg)}
  .scn-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:24px}
  .scn-card{
    background:#fff;border-radius:20px;padding:36px;
    border:1px solid var(--line);transition:all .3s ease;
    position:relative;overflow:hidden;
  }
  .scn-card:hover{
    transform:translateY(-4px);box-shadow:var(--shadow);border-color:transparent;
  }
  .scn-icon{
    width:56px;height:56px;border-radius:14px;
    display:flex;align-items:center;justify-content:center;
    margin-bottom:20px;font-size:24px;
  }
  .scn-card:nth-child(1) .scn-icon{background:linear-gradient(135deg,#EEEBFF,#DCD7FF);color:var(--primary)}
  .scn-card:nth-child(2) .scn-icon{background:linear-gradient(135deg,#E0F4FF,#C7E7FF);color:var(--blue)}
  .scn-card:nth-child(3) .scn-icon{background:linear-gradient(135deg,#E0F8F1,#C2F0E1);color:var(--green)}
  .scn-card:nth-child(4) .scn-icon{background:linear-gradient(135deg,#FFEEE0,#FFD9BF);color:var(--orange)}

  .scn-card h4{margin-bottom:12px}
  .scn-card>p{color:var(--text-2);font-size:15px;line-height:1.7;margin-bottom:20px}
  .scn-tags{display:flex;flex-wrap:wrap;gap:8px}
  .scn-tag{
    font-size:12px;padding:5px 12px;border-radius:999px;
    background:var(--bg);color:var(--text-2);font-weight:500;
  }

  /* ============================================
     Methodology (Dark)
     ============================================ */
  .geo{background:var(--dark);color:#fff;position:relative;overflow:hidden}
  .geo::before{
    content:"";position:absolute;inset:0;
    background:
      radial-gradient(ellipse 600px 400px at 20% 20%,rgba(91,75,255,.25),transparent 60%),
      radial-gradient(ellipse 600px 400px at 80% 80%,rgba(40,120,255,.2),transparent 60%);
  }
  .geo .section-head h2{color:#fff}
  .geo .section-head p{color:rgba(255,255,255,.7)}
  .geo .eyebrow{background:rgba(91,75,255,.15);color:#A89BFF}

  .geo-compare{
    display:grid;grid-template-columns:1fr auto 1fr;gap:24px;
    align-items:stretch;position:relative;
  }
  .geo-col{
    background:rgba(255,255,255,.04);border:1px solid rgba(255,255,255,.1);
    border-radius:20px;padding:36px;backdrop-filter:blur(10px);
    transition:all .3s ease;
  }
  .geo-col:hover{background:rgba(255,255,255,.06);border-color:rgba(91,75,255,.4)}
  .geo-col.highlight{
    background:linear-gradient(135deg,rgba(91,75,255,.15),rgba(40,120,255,.1));
    border-color:rgba(91,75,255,.4);
  }
  .geo-col-tag{
    display:inline-block;font-size:12px;font-weight:600;
    padding:4px 12px;border-radius:999px;
    background:rgba(255,255,255,.1);color:rgba(255,255,255,.8);
    margin-bottom:20px;
  }
  .geo-col.highlight .geo-col-tag{background:var(--primary);color:#fff}
  .geo-col h3{color:#fff;font-size:24px;margin-bottom:8px}
  .geo-col-tagline{color:rgba(255,255,255,.6);font-size:14px;margin-bottom:24px}

  .geo-list{display:flex;flex-direction:column;gap:14px}
  .geo-list-item{
    display:flex;align-items:flex-start;gap:12px;
    padding:14px 16px;background:rgba(255,255,255,.03);
    border-radius:10px;font-size:14px;color:rgba(255,255,255,.85);
  }
  .geo-list-item::before{
    content:"→";color:var(--primary);font-weight:700;flex-shrink:0;
  }
  .geo-vs{
    display:flex;align-items:center;justify-content:center;
    width:60px;height:60px;border-radius:50%;
    background:linear-gradient(135deg,var(--primary),var(--blue));
    color:#fff;font-weight:800;font-size:18px;
    box-shadow:0 10px 30px rgba(91,75,255,.4);
    align-self:center;
  }

  /* ============================================
     Advantages
     ============================================ */
  .adv{background:#fff}
  .adv-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
  .adv-card{
    padding:36px 32px;border-radius:20px;
    background:linear-gradient(135deg,#FAFAFE,#F7F8FC);
    border:1px solid var(--line);transition:all .3s ease;
    position:relative;overflow:hidden;
  }
  .adv-card:hover{transform:translateY(-4px);box-shadow:var(--shadow);background:#fff}
  .adv-card .adv-num{
    position:absolute;top:20px;right:24px;
    font-size:48px;font-weight:800;color:rgba(91,75,255,.12);
    line-height:1;
  }
  .adv-card h4{margin-bottom:12px;color:var(--text)}
  .adv-card p{color:var(--text-2);font-size:15px;line-height:1.7}

  /* ============================================
     Cases
     ============================================ */
  .cases{background:var(--bg)}
  .case-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
  .case-card{
    background:#fff;border-radius:20px;padding:36px 32px;
    border:1px solid var(--line);transition:all .3s ease;
  }
  .case-card:hover{transform:translateY(-4px);box-shadow:var(--shadow)}
  .case-tag{
    display:inline-block;font-size:12px;font-weight:600;
    color:var(--primary);padding:5px 12px;border-radius:999px;
    background:var(--primary-soft);margin-bottom:20px;
  }
  .case-card h4{margin-bottom:14px;font-size:18px}
  .case-card p{color:var(--text-2);font-size:14px;line-height:1.7;margin-bottom:16px}
  .case-meta{
    display:flex;align-items:center;gap:8px;font-size:13px;
    color:var(--text-3);padding-top:16px;border-top:1px solid var(--line);
  }
  .case-meta strong{color:var(--primary)}

  /* ============================================
     Final CTA (Dark)
     ============================================ */
  .cta{
    background:linear-gradient(135deg,#17142E 0%,#221C3F 100%);
    color:#fff;position:relative;overflow:hidden;
  }
  .cta::before{
    content:"";position:absolute;inset:0;
    background:
      radial-gradient(ellipse 800px 400px at 50% 0%,rgba(91,75,255,.3),transparent 60%),
      radial-gradient(ellipse 600px 400px at 80% 100%,rgba(40,120,255,.2),transparent 60%);
  }
  .cta-inner{
    position:relative;text-align:center;
    max-width:780px;margin:0 auto;
  }
  .cta h2{color:#fff;font-size:clamp(32px,4vw,52px);margin-bottom:20px}
  .cta p{color:rgba(255,255,255,.7);font-size:19px;line-height:1.7;margin-bottom:40px}
  .cta-actions{display:flex;justify-content:center;gap:16px;flex-wrap:wrap}
  .cta-features{
    display:flex;justify-content:center;gap:32px;margin-top:48px;
    color:rgba(255,255,255,.6);font-size:14px;flex-wrap:wrap;
  }
  .cta-features span{display:inline-flex;align-items:center;gap:8px}
  .cta-features span::before{
    content:"";width:6px;height:6px;border-radius:50%;background:var(--green);
  }

  /* ============================================
     Footer
     ============================================ */
  footer{
    background:#0F0C24;color:rgba(255,255,255,.7);padding:60px 0 30px;
  }
  .foot-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:48px;margin-bottom:48px}
  .foot-brand{display:flex;align-items:center;gap:12px;margin-bottom:20px;font-weight:700;color:#fff;font-size:18px}
  .foot-brand img{width:36px;height:36px;border-radius:50%}
  .foot-about{font-size:14px;line-height:1.7;max-width:300px}
  .foot-col h5{
    color:#fff;font-size:14px;font-weight:600;margin-bottom:20px;
    letter-spacing:.04em;
  }
  .foot-col ul{display:flex;flex-direction:column;gap:12px;font-size:14px}
  .foot-col a{transition:color .2s ease}
  .foot-col a:hover{color:#fff}
  .foot-bottom{
    padding-top:30px;border-top:1px solid rgba(255,255,255,.1);
    display:flex;justify-content:space-between;align-items:center;
    font-size:13px;color:rgba(255,255,255,.5);flex-wrap:wrap;gap:16px;
  }
  .foot-bottom a{color:inherit;text-decoration:none;transition:color .2s ease}
  .foot-bottom a:hover{color:#fff}
  .foot-beian{display:inline-flex;align-items:center;gap:6px}
  .foot-beian svg{flex:none;display:block}
  .foot-bottom-group{display:inline-flex;align-items:center;gap:18px;flex-wrap:wrap}

  /* ============================================
     Scroll Reveal
     ============================================ */
  .reveal{opacity:0;transform:translateY(28px);transition:all .8s cubic-bezier(.4,0,.2,1)}
  .reveal-left{opacity:0;transform:translateX(-40px);transition:all .8s cubic-bezier(.4,0,.2,1)}
  .reveal-right{opacity:0;transform:translateX(40px);transition:all .8s cubic-bezier(.4,0,.2,1)}
  .reveal-scale{opacity:0;transform:scale(.92);transition:all .8s cubic-bezier(.4,0,.2,1)}
  .reveal.visible,.reveal-left.visible,.reveal-right.visible,.reveal-scale.visible{opacity:1;transform:none}

  /* Stagger 入场：父级加 .stagger，子元素依次延迟 */
  .stagger > *{opacity:0;transform:translateY(20px);transition:all .6s cubic-bezier(.4,0,.2,1)}
  .stagger.visible > *{opacity:1;transform:none}
  .stagger.visible > *:nth-child(1){transition-delay:.00s}
  .stagger.visible > *:nth-child(2){transition-delay:.08s}
  .stagger.visible > *:nth-child(3){transition-delay:.16s}
  .stagger.visible > *:nth-child(4){transition-delay:.24s}
  .stagger.visible > *:nth-child(5){transition-delay:.32s}
  .stagger.visible > *:nth-child(6){transition-delay:.40s}
  .stagger.visible > *:nth-child(7){transition-delay:.48s}
  .stagger.visible > *:nth-child(8){transition-delay:.56s}

  /* ============================================
     Top Progress Bar (阅读进度)
     ============================================ */
  .progress-bar{
    position:fixed;top:0;left:0;height:3px;width:0;
    background:linear-gradient(90deg,var(--primary),var(--blue),#19C99A);
    z-index:200;transition:width .12s linear;
    box-shadow:0 0 12px rgba(91,75,255,.6);
  }

  /* ============================================
     Hero Gradient Title
     ============================================ */
  .gradient-title{
    background:linear-gradient(135deg,#17142E 0%,#5B4BFF 40%,#2878FF 75%,#5B4BFF 100%);
    background-size:200% 200%;
    -webkit-background-clip:text;background-clip:text;color:transparent;
    animation:gradShift 8s ease-in-out infinite;
  }
  @keyframes gradShift{
    0%,100%{background-position:0% 50%}
    50%{background-position:100% 50%}
  }

  /* Shine sweep on titles */
  .shine{position:relative;overflow:hidden}
  .shine::after{
    content:"";position:absolute;top:0;left:-100%;
    width:60%;height:100%;
    background:linear-gradient(120deg,transparent 0%,rgba(255,255,255,.55) 50%,transparent 100%);
    transform:skewX(-20deg);
    animation:shine 5s ease-in-out infinite;
    pointer-events:none;
  }
  @keyframes shine{
    0%,60%{left:-100%}
    100%{left:200%}
  }

  /* ============================================
     3D Tilt + Glow Card
     ============================================ */
  .tilt{transform-style:preserve-3d;transition:transform .35s cubic-bezier(.4,0,.2,1)}
  .glow-card{
    position:relative;overflow:hidden;
  }
  .glow-card::before{
    content:"";position:absolute;inset:0;
    background:radial-gradient(400px circle at var(--mx,50%) var(--my,50%),rgba(91,75,255,.18),transparent 40%);
    opacity:0;transition:opacity .35s ease;pointer-events:none;
    z-index:1;
  }
  .glow-card:hover::before{opacity:1}

  /* ============================================
     Nav Active Highlight (跟随滚动 section)
     ============================================ */
  .nav-links a{position:relative}
  .nav-links a::after{
    content:"";position:absolute;left:50%;bottom:-6px;
    width:0;height:2px;border-radius:2px;
    background:linear-gradient(90deg,var(--primary),var(--blue));
    transform:translateX(-50%);transition:width .3s ease;
  }
  .nav-links a:hover::after,.nav-links a.active::after{width:24px}

  /* ============================================
     Cap Tabs Indicator (滑块)
     ============================================ */
  .cap-tabs{position:relative}
  .tab-indicator{
    position:absolute;top:8px;bottom:8px;
    background:var(--primary);
    border-radius:12px;
    box-shadow:0 8px 24px rgba(91,75,255,.4),inset 0 1px 0 rgba(255,255,255,.2);
    transition:all .45s cubic-bezier(.4,0,.2,1);
    z-index:0;
    pointer-events:none;
  }
  .cap-tab{position:relative;z-index:1}
  .cap-tab.active{
    color:#fff;
    transition:color .2s ease .15s;
  }

  /* ============================================
     Buttons Glow + Lift
     ============================================ */
  .btn-primary{
    position:relative;overflow:hidden;
    transition:all .3s cubic-bezier(.4,0,.2,1);
  }
  .btn-primary:hover{
    transform:translateY(-2px) scale(1.02);
    box-shadow:0 10px 28px rgba(91,75,255,.45),0 4px 10px rgba(91,75,255,.3);
  }
  .btn-primary::after{
    content:"";position:absolute;top:50%;left:50%;
    width:0;height:0;border-radius:50%;
    background:rgba(255,255,255,.4);
    transform:translate(-50%,-50%);
    transition:width .5s ease,height .5s ease,opacity .6s ease;
    opacity:0;
  }
  .btn-primary:active::after{width:300px;height:300px;opacity:1;transition:0s}

  /* ============================================
     Counter Up (数字滚动由 JS 触发)
     ============================================ */
  .count{font-variant-numeric:tabular-nums}

  /* ============================================
     Floating Soft Animation
     ============================================ */
  @keyframes floatY{
    0%,100%{transform:translateY(0)}
    50%{transform:translateY(-8px)}
  }
  .float-slow{animation:floatY 6s ease-in-out infinite}
  .float-fast{animation:floatY 4s ease-in-out infinite}

  /* Decorative gradient blobs */
  .blob{
    position:absolute;border-radius:50%;filter:blur(60px);opacity:.5;
    pointer-events:none;z-index:0;
  }

  /* ============================================
     Geo dark section stars
     ============================================ */
  .geo::before{
    content:"";position:absolute;inset:0;
    background-image:
      radial-gradient(1px 1px at 12% 18%,rgba(255,255,255,.5),transparent 50%),
      radial-gradient(1px 1px at 32% 62%,rgba(255,255,255,.4),transparent 50%),
      radial-gradient(1px 1px at 58% 28%,rgba(255,255,255,.35),transparent 50%),
      radial-gradient(1px 1px at 78% 78%,rgba(255,255,255,.45),transparent 50%),
      radial-gradient(1px 1px at 88% 12%,rgba(255,255,255,.3),transparent 50%);
    pointer-events:none;opacity:.7;
  }

  /* ============================================
     Responsive
     ============================================ */
  @media (max-width:1024px){
    .hero-grid,.cap-panel.active,.demo-stage,.geo-compare,.scn-grid,.adv-grid,.case-grid,.foot-grid{
      grid-template-columns:1fr;gap:40px;
    }
    .value-grid{grid-template-columns:repeat(2,1fr)}
    .cap-tabs{grid-template-columns:repeat(2,1fr)}
    .geo-vs{margin:0 auto}
    .nav-links{display:none}
  }
  @media (max-width:640px){
    .section{padding:80px 0}
    .hero{padding:130px 0 60px}
    .value-grid,.adv-grid,.case-grid{grid-template-columns:1fr}
    .cap-tabs{grid-template-columns:1fr}
    .cap-features{grid-template-columns:1fr}
    .nav-cta .btn-ghost{display:none}
    .demo-stage{padding:24px}
    .demo-view{padding:20px}
    .floating-badge{display:none}
  }
  /* ============================================
     Modal Popups  (Trial QR + Login)
     ============================================ */
  .modal-backdrop{
    position:fixed;inset:0;z-index:9999;
    background:rgba(13,11,38,.55);
    backdrop-filter:blur(8px);
    -webkit-backdrop-filter:blur(8px);
    display:flex;align-items:center;justify-content:center;
    padding:20px;
    opacity:0;visibility:hidden;
    transition:opacity .25s ease,visibility .25s ease;
  }
  .modal-backdrop.open{opacity:1;visibility:visible}
  .modal-backdrop.open .modal{
    transform:translateY(0) scale(1);opacity:1;
  }
  .modal{
    position:relative;
    background:#fff;
    border-radius:20px;
    box-shadow:0 30px 80px rgba(0,0,0,.25);
    width:100%;max-width:880px;
    overflow:hidden;
    transform:translateY(20px) scale(.96);
    opacity:0;
    transition:transform .35s cubic-bezier(.22,.61,.36,1),opacity .25s ease;
  }
  .modal-close{
    position:absolute;top:16px;right:16px;
    width:36px;height:36px;border-radius:50%;
    background:rgba(255,255,255,.95);
    color:#333;display:flex;align-items:center;justify-content:center;
    font-size:22px;line-height:1;cursor:pointer;
    box-shadow:0 4px 12px rgba(0,0,0,.12);
    transition:all .2s ease;
    z-index:5;
  }
  .modal-close:hover{background:#fff;transform:rotate(90deg)}
  .modal-body{display:grid;grid-template-columns:1.05fr 1fr;min-height:460px}
  .modal-side{
    background:linear-gradient(135deg,#5B4BFF 0%,#7B6BFF 50%,#19C99A 100%);
    color:#fff;
    padding:48px 40px;
    display:flex;flex-direction:column;justify-content:space-between;
    position:relative;overflow:hidden;
  }
  .modal-side::before{
    content:"";position:absolute;top:-60px;right:-60px;
    width:220px;height:220px;border-radius:50%;
    background:rgba(255,255,255,.12);
  }
  .modal-side::after{
    content:"";position:absolute;bottom:-80px;left:-40px;
    width:260px;height:260px;border-radius:50%;
    background:rgba(255,255,255,.08);
  }
  .modal-side-inner{position:relative;z-index:1}
  .modal-side h3{font-size:26px;line-height:1.4;color:#fff;margin-bottom:14px;font-weight:700}
  .modal-side p{font-size:14px;line-height:1.7;color:rgba(255,255,255,.88);margin-bottom:20px}
  .modal-side .modal-pills{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:24px}
  .modal-side .modal-pill{
    display:inline-flex;align-items:center;gap:6px;
    padding:6px 12px;border-radius:999px;
    background:rgba(255,255,255,.18);
    font-size:12px;font-weight:500;
    backdrop-filter:blur(4px);
  }
  .modal-side .modal-pill::before{
    content:"";width:6px;height:6px;border-radius:50%;background:#19C99A;
  }
  .modal-illo{
    position:relative;z-index:1;
    width:100%;height:140px;
    display:flex;align-items:center;justify-content:center;
  }
  .modal-illo svg{width:100%;height:100%}
  .modal-main{
    padding:48px 44px;
    display:flex;flex-direction:column;justify-content:center;
  }
  .modal-main-title{font-size:22px;font-weight:700;color:var(--text);margin-bottom:8px}
  .modal-main-sub{font-size:14px;color:var(--text-2);margin-bottom:28px;line-height:1.6}

  /* QR card */
  .qr-card{
    display:flex;flex-direction:column;align-items:center;
    background:#F7F8FC;border-radius:16px;
    padding:24px 20px;
    border:1px solid var(--line);
    position:relative;
  }
  .qr-card img{
    width:200px;height:200px;border-radius:8px;
    background:#fff;padding:6px;
    box-shadow:0 4px 16px rgba(91,75,255,.10);
    display:block;
  }
  .qr-tip{
    margin-top:14px;font-size:13px;color:var(--text-2);text-align:center;
    display:flex;align-items:center;gap:6px;
  }
  .qr-tip strong{color:var(--primary);font-weight:700}
  .qr-actions{
    margin-top:20px;display:flex;gap:10px;width:100%;
  }
  .qr-actions .btn{flex:1;justify-content:center}
  .qr-other{
    margin-top:22px;padding-top:18px;border-top:1px dashed var(--line);
    display:flex;justify-content:space-around;width:100%;
    font-size:12px;color:var(--text-3);
  }
  .qr-other-item{display:flex;flex-direction:column;align-items:center;gap:4px}
  .qr-other-item .ico{
    width:32px;height:32px;border-radius:50%;
    display:flex;align-items:center;justify-content:center;
    background:var(--primary-soft);color:var(--primary);
    font-size:13px;font-weight:700;
  }

  /* Login form */
  .login-form{display:flex;flex-direction:column;gap:14px}
  .login-field{
    display:flex;flex-direction:column;gap:6px;
  }
  .login-field label{font-size:12px;color:var(--text-2);font-weight:500}
  .login-field input{
    padding:12px 14px;font-size:14px;
    border:1px solid var(--line);border-radius:10px;
    background:#fff;color:var(--text);
    transition:all .2s ease;
    font-family:inherit;
  }
  .login-field input:focus{
    outline:none;border-color:var(--primary);
    box-shadow:0 0 0 4px rgba(91,75,255,.10);
  }
  .login-row{
    display:flex;align-items:center;justify-content:space-between;
    font-size:12px;color:var(--text-2);margin-top:2px;
  }
  .login-row label{display:flex;align-items:center;gap:6px;cursor:pointer}
  .login-row input[type=checkbox]{accent-color:var(--primary);width:14px;height:14px}
  .login-row a{color:var(--primary);font-weight:500}
  .login-row a:hover{text-decoration:underline}
  .login-submit{
    margin-top:8px;
    width:100%;padding:13px;
    background:linear-gradient(135deg,var(--primary),var(--primary-deep));
    color:#fff;border:none;border-radius:10px;
    font-size:15px;font-weight:600;cursor:pointer;
    transition:all .25s ease;
    box-shadow:0 6px 16px rgba(91,75,255,.30);
  }
  .login-submit:hover{transform:translateY(-1px);box-shadow:0 10px 24px rgba(91,75,255,.40)}
  .login-divider{
    margin:20px 0 14px;display:flex;align-items:center;gap:12px;
    font-size:12px;color:var(--text-3);
  }
  .login-divider::before,.login-divider::after{
    content:"";flex:1;height:1px;background:var(--line);
  }
  .login-foot{
    margin-top:18px;text-align:center;font-size:12px;color:var(--text-3);
  }
  .login-foot a{color:var(--primary);font-weight:500}
  .login-msg{
    margin-top:10px;padding:10px 14px;border-radius:8px;
    font-size:13px;display:none;
  }
  .login-msg.show{display:block}
  .login-msg.ok{background:#E0F8F1;color:#0E8C66}
  .login-msg.err{background:#FFE8E8;color:#C73E3E}

  /* Mobile */
  @media (max-width:768px){
    .modal{max-width:100%;border-radius:16px}
    .modal-body{grid-template-columns:1fr;min-height:0}
    .modal-side{padding:32px 24px}
    .modal-side h3{font-size:22px}
    .modal-illo{height:100px}
    .modal-main{padding:32px 24px}
    .qr-card img{width:180px;height:180px}
  }
  @media (max-width:480px){
    .modal-backdrop{padding:10px}
    .modal-side{padding:24px 20px}
    .modal-main{padding:24px 20px}
  }

  /* ============================================
     Typewriter (Hero h1)
     ============================================ */
  .gradient-title.typing{position:relative;min-height:1.2em}
  .gradient-title.typing::after{
    content:"";display:inline-block;width:3px;height:.9em;
    background:var(--primary);margin-left:4px;vertical-align:-.1em;
    animation:caretBlink 1s steps(1) infinite;
  }
  @keyframes caretBlink{50%{opacity:0}}
  .gradient-title.typing{opacity:0;transform:translateY(24px);transition:opacity .6s ease,transform .6s cubic-bezier(.22,.61,.36,1)}
  .gradient-title.typing.in{opacity:1;transform:translateY(0)}

  /* ============================================
     Floating Consultant (Right Side)
     ============================================ */
  .floating-consultant{
    position:fixed;right:20px;top:50%;transform:translateY(-50%);
    width:240px;
    background:linear-gradient(180deg,#fff 0%,#F5F3FF 100%);
    border-radius:18px;
    box-shadow:0 12px 40px rgba(91,75,255,.18),0 2px 6px rgba(0,0,0,.06);
    z-index:60;padding:20px 16px 16px;
    border:1px solid rgba(91,75,255,.08);
    opacity:0;transform:translateY(-50%) translateX(40px);pointer-events:none;
    transition:opacity .6s cubic-bezier(.22,.61,.36,1),transform .6s cubic-bezier(.22,.61,.36,1);
  }
  .floating-consultant.in{opacity:1;transform:translateY(-50%) translateX(0);pointer-events:auto}
  .floating-consultant.hide{opacity:0;transform:translateY(-50%) translateX(20px);pointer-events:none}

  .fc-head{display:flex;align-items:center;gap:10px;margin-bottom:14px}
  .fc-badge{
    width:38px;height:38px;border-radius:10px;flex-shrink:0;
    background:linear-gradient(135deg,var(--primary),var(--primary-deep));
    color:#fff;display:flex;align-items:center;justify-content:center;
    font-size:13px;font-weight:800;letter-spacing:-.02em;
    box-shadow:0 4px 12px rgba(91,75,255,.3);
  }
  .fc-title{font-size:15px;font-weight:700;color:var(--text);line-height:1.3;margin-bottom:4px}
  .fc-sub{
    display:inline-flex;align-items:center;gap:5px;
    font-size:11px;color:var(--primary);font-weight:600;
    background:rgba(91,75,255,.08);padding:3px 8px;border-radius:20px;
    white-space:nowrap;
  }
  .fc-sub::before{content:"";width:5px;height:5px;border-radius:50%;background:var(--primary);box-shadow:0 0 0 3px rgba(91,75,255,.15);animation:pulse 1.6s ease-in-out infinite;flex-shrink:0}

  .fc-qr{
    background:#fff;border-radius:12px;padding:8px;margin-bottom:12px;text-align:center;
    border:1px solid rgba(91,75,255,.08);position:relative;
  }
  .fc-qr img{width:100%;height:auto;display:block;border-radius:6px}
  .fc-tip{font-size:11px;color:var(--text-2);margin-top:8px;line-height:1.5;text-align:center}
  .fc-tip strong{color:var(--primary)}

  .fc-tools{display:grid;grid-template-columns:1fr 1fr;gap:8px;margin-bottom:8px}
  .fc-tool{
    background:#fff;border:1px solid rgba(91,75,255,.15);border-radius:10px;
    padding:12px 6px;text-align:center;cursor:default;
    transition:all .25s ease;
    display:flex;flex-direction:column;align-items:center;gap:4px;
  }
  .fc-tool-ico{
    width:32px;height:32px;border-radius:8px;
    background:linear-gradient(135deg,rgba(91,75,255,.1),rgba(25,201,154,.1));
    display:flex;align-items:center;justify-content:center;
    font-size:18px;line-height:1;
  }
  .fc-tool-name{font-size:12px;font-weight:700;color:var(--text);line-height:1.3}
  .fc-tool-sub{font-size:10px;color:var(--primary);font-weight:600}

  /* 关闭按钮移到卡片下方 */
  .fc-close{
    position:absolute;left:50%;bottom:-32px;transform:translateX(-50%);
    width:28px;height:28px;
    border:none;background:rgba(91,75,255,.12);color:var(--primary);border-radius:50%;
    font-size:16px;line-height:1;cursor:pointer;
    display:flex;align-items:center;justify-content:center;
    transition:all .2s ease;z-index:2;
    pointer-events:auto;
  }
  .fc-close:hover{background:var(--primary);color:#fff;transform:translateX(-50%) rotate(90deg)}

  .fc-reopen{
    position:fixed;right:20px;top:50%;
    width:48px;height:48px;border-radius:50%;
    background:linear-gradient(135deg,var(--primary),var(--primary-deep));
    color:#fff;border:none;cursor:pointer;
    box-shadow:0 8px 24px rgba(91,75,255,.4);
    display:none;align-items:center;justify-content:center;
    font-size:20px;z-index:60;
    transition:all .25s ease;
  }
  .fc-reopen.show{display:flex;animation:fcReopenIn .4s ease both;transform:translateY(-50%)}
  @keyframes fcReopenIn{from{opacity:0;transform:translateY(-50%) scale(.5)}to{opacity:1;transform:translateY(-50%) scale(1)}}

  @media (max-width:1024px){
    .floating-consultant{display:none}
    .fc-reopen{
      display:flex;top:auto;bottom:24px;right:20px;
      animation:fcReopenIn .4s ease both;transform:none;
    }
    .fc-reopen:hover{transform:scale(1.08)}
  }

  /* ============================================
     SEO 语义增强区块（视觉隐藏，搜索引擎可读）
     ============================================ */
  .seo-context{
    position:absolute;width:1px;height:1px;padding:0;margin:-1px;
    overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0;
  }

  /* ============================================
     End of Styles
     ============================================ */