/* ========= Palette (match your reference card) ========= */
  :root{
    --bg-page:#545454;
    --bg-card:#2f2f2f;
    --line:rgba(255,255,255,.12);
    --text:rgba(255,255,255,.88);
    --muted:rgba(255,255,255,.76);
    --brand:#ffcc33;
    --shadow:0 18px 50px rgba(0,0,0,.45);
    --r:18px;
  }

  /* ========= Section =========
     ✅ Fix “covering previous module on mobile”
     - use margin-top instead of negative overlaps
     - add isolation so shadows/overlays don't bleed
  */
  .application-section{
    background: var(--bg-page);
    padding: 72px 0;
    margin-top: 0;
    position: relative;
    z-index: 1;
    isolation: isolate;            /* prevents overlay bleed */
    font-family: Arial, Helvetica, sans-serif;
  }

  /* subtle depth that looks premium (not busy) */
  .application-section::before{
    content:"";
    position:absolute;
    inset:0;
    background:
      radial-gradient(900px 380px at 18% 10%, rgba(255,204,51,.16), transparent 58%),
      radial-gradient(700px 340px at 86% 22%, rgba(255,255,255,.08), transparent 60%),
      linear-gradient(180deg, rgba(0,0,0,.08), rgba(0,0,0,.18));
    pointer-events:none;
    z-index: 0;
  }

  .app-wrap{
    position: relative;
    z-index: 1;
    max-width: 1440px;            /* ✅统一 1440px */
    margin: 0 auto;
    padding: 0 32px;
  }

  .app-header{
    margin-bottom: 34px;
  }

  .app-title{
    margin: 0;
    color: var(--brand);
    font-size: clamp(30px, 3vw, 46px);
    font-weight: 800;
    letter-spacing: .2px;
  }

  .app-subtitle{
    margin: 10px 0 0;
    color: var(--muted);
    font-size: 14px;
    max-width: 760px;
    line-height: 1.65;
  }

  .app-grid{
    display: grid;
    grid-template-columns: repeat(12, 1fr);
    gap: 26px;
  }

  .app-card{
    grid-column: span 4;
    background: var(--bg-card);
    border: 1px solid var(--line);
    border-radius: var(--r);
    overflow: hidden;
    box-shadow: var(--shadow);
    transform: translateZ(0); /* smoother */
    transition: transform .25s ease, border-color .25s ease, box-shadow .25s ease;
  }

  .app-card:hover{
    transform: translateY(-8px);
    border-color: rgba(255,204,51,.35);
    box-shadow: 0 26px 70px rgba(0,0,0,.55);
  }

  /* ===== Image with premium overlay ===== */
  .app-media{
    position: relative;
    height: 220px;
    overflow: hidden;
    background: #1f1f1f;
  }

  .app-media::after{
    content:"";
    position:absolute;
    inset:0;
    background:
      linear-gradient(180deg, rgba(0,0,0,.00) 0%, rgba(0,0,0,.55) 100%);
    pointer-events:none;
  }

  .app-media img{
    width: 100%;
    height: 100%;
    object-fit: cover;
    display:block;
    transform: scale(1.02);
    transition: transform .45s ease;
    filter: saturate(1.05) contrast(1.05);
  }

  .app-card:hover .app-media img{
    transform: scale(1.10);
  }

  /* ===== Label ===== */
  .app-label{
    position: absolute;
    left: 16px;
    bottom: 16px;
    z-index: 1;
    padding: 9px 14px;
    border-radius: 999px;
    background: rgba(0,0,0,.62);
    border: 1px solid rgba(255,255,255,.14);
    color: var(--brand);
    font-size: 12px;
    font-weight: 800;
    letter-spacing: .3px;
    backdrop-filter: blur(6px);
  }

  .app-body{
    padding: 22px 22px 26px;
  }

  .app-h3{
    margin: 0 0 10px;
    color: var(--brand);
    font-size: 18px;
    font-weight: 900;
    letter-spacing: .2px;
  }

  .app-text{
    margin: 0 0 14px;
    color: var(--text);
    font-size: 14px;
    line-height: 1.65;
  }

  .app-list{
    margin: 0;
    padding-left: 18px;
    color: rgba(255,255,255,.84);
    font-size: 14px;
    line-height: 1.8;
  }

  /* ========= Mobile fixes =========
     ✅ prevent overlap: add scroll-margin + spacing
     ✅ better rhythm: smaller paddings, full width, no heavy shadows
  */
  @media (max-width: 1024px){
    .app-card{ grid-column: span 6; }
  }

  @media (max-width: 720px){
    .application-section{
      padding: 56px 0;
    }
    .app-wrap{
      padding: 0 16px;
    }
    .app-grid{
      gap: 16px;
    }
    .app-card{
      grid-column: span 12;
      box-shadow: 0 14px 36px rgba(0,0,0,.38);
    }
    .app-media{
      height: 200px;
    }
    .app-body{
      padding: 18px 16px 20px;
    }
    .app-h3{
      font-size: 17px;
    }
  }

  /* If your theme has negative margins on sections, this hard-protects it */
  .application-section{
    clear: both;
  }