*{box-sizing:border-box;}
  html{scroll-behavior:smooth;scroll-padding-top:88px;}
  body{
    margin:0;
    font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Source Han Sans SC","Noto Sans SC",system-ui,-apple-system,"Segoe UI",sans-serif;
    color:#16122b;
    background-color:#f7f5ff;
    background-image:
      radial-gradient(900px 520px at 6% -4%, rgba(90,43,255,.17), transparent 62%),
      radial-gradient(760px 460px at 98% 3%, rgba(255,61,127,.15), transparent 60%),
      radial-gradient(1000px 640px at 50% 62%, rgba(0,207,164,.10), transparent 66%),
      linear-gradient(180deg,#f7f5ff 0%,#fbfaff 42%,#f2eeff 100%);
    font-size:16px;
    line-height:1.7;
    -webkit-font-smoothing:antialiased;
  }
  :root{
    --ink:#16122b;
    --ink-soft:#4a4566;
    --brand:#5a2bff;
    --brand-deep:#2a0fb0;
    --pink:#ff3d7f;
    --mint:#00cfa4;
    --line:#e5dffb;
    --card:#ffffff;
    --radius:18px;
  }
  .container{width:100%;max-width:1180px;margin:0 auto;padding:0 22px;}
  .section{padding:62px 0;}
  .section-head{max-width:780px;margin:0 auto 34px;text-align:center;}
  .eyebrow{display:inline-block;font-size:12.5px;letter-spacing:.14em;text-transform:uppercase;color:#2a0fb0;background:#efeaff;border:1px solid #ddd3ff;padding:5px 14px;border-radius:999px;font-weight:700;}
  h2{font-size:clamp(23px,3.2vw,34px);line-height:1.32;margin:14px 0 12px;color:#170f3d;font-weight:800;letter-spacing:-.01em;}
  h3{color:#170f3d;}
  .section-head p{color:var(--ink-soft);font-size:15.5px;line-height:1.8;margin:0;}
  a{color:inherit;}

  /* header */
  .site-header{
    position:sticky;top:0;z-index:80;
    background:rgba(255,255,255,.9);
    backdrop-filter:blur(14px);
    -webkit-backdrop-filter:blur(14px);
    border-bottom:1px solid var(--line);
  }
  .header-inner{position:relative;display:flex;align-items:center;justify-content:space-between;gap:16px;padding-top:11px;padding-bottom:11px;}
  .brand{display:flex;align-items:center;gap:10px;text-decoration:none;flex-shrink:0;}
  .ai-page-logo{max-height:36px;width:auto;max-width:100%;display:block;}
  .brand-name{font-size:18px;font-weight:800;color:#170f3d;letter-spacing:.02em;white-space:nowrap;}
  .nav-wrap{display:flex;align-items:center;gap:14px;}
  .nav-links{display:flex;align-items:center;gap:0;flex-wrap:wrap;list-style:none;margin:0;padding:0;}
  .nav-links a{display:block;padding:8px 10px;border-radius:10px;font-size:14px;color:#4a4566;text-decoration:none;font-weight:600;transition:color .2s,background .2s;}
  .nav-links a:hover{color:#2a0fb0;background:#f0ebff;}
  .nav-toggle{display:none;flex-direction:column;justify-content:center;gap:5px;width:44px;height:40px;padding:0 10px;border:1px solid var(--line);border-radius:12px;background:#fff;cursor:pointer;}
  .nav-toggle span{display:block;height:2px;background:#2a0fb0;border-radius:2px;transition:transform .25s,opacity .25s;}
  .nav-toggle[aria-expanded="true"] span:nth-child(1){transform:translateY(7px) rotate(45deg);}
  .nav-toggle[aria-expanded="true"] span:nth-child(2){opacity:0;}
  .nav-toggle[aria-expanded="true"] span:nth-child(3){transform:translateY(-7px) rotate(-45deg);}

  /* buttons */
  .btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:13px 26px;border-radius:999px;font-weight:700;font-size:15px;text-decoration:none;border:1px solid transparent;cursor:pointer;font-family:inherit;transition:transform .18s,box-shadow .18s,background .18s,color .18s;}
  .btn-primary{background:linear-gradient(135deg,#5a2bff,#8f2bff 52%,#ff3d7f);color:#fff;box-shadow:0 14px 28px -16px rgba(90,43,255,.95);}
  .btn-primary:hover{transform:translateY(-2px);box-shadow:0 20px 34px -16px rgba(90,43,255,.95);}
  .btn-primary:active{transform:translateY(0);}
  .btn-ghost{background:#fff;color:#2a0fb0;border-color:#d9cfff;box-shadow:0 10px 24px -20px rgba(42,15,176,.8);}
  .btn-ghost:hover{background:#f2edff;transform:translateY(-2px);}
  .btn-sm{padding:9px 18px;font-size:14px;}

  /* hero */
  .hero{position:relative;padding:70px 0 26px;overflow:hidden;}
  .hero::before{content:"";position:absolute;width:340px;height:340px;border-radius:50%;background:radial-gradient(circle,rgba(90,43,255,.26),transparent 68%);top:-140px;left:-90px;filter:blur(8px);pointer-events:none;}
  .hero::after{content:"";position:absolute;width:300px;height:300px;border-radius:50%;background:radial-gradient(circle,rgba(255,61,127,.22),transparent 68%);right:-80px;top:-60px;filter:blur(8px);pointer-events:none;}
  .hero-inner{position:relative;z-index:1;text-align:center;}
  .hero h1{
    font-size:clamp(29px,5vw,50px);
    line-height:1.22;
    margin:18px auto 16px;
    max-width:900px;
    color:#150d3a;
    font-weight:800;
    letter-spacing:-.015em;
  }
  .hero-lead{max-width:760px;margin:0 auto;font-size:clamp(15px,1.8vw,17px);color:#443f63;line-height:1.85;}
  .hero-actions{display:flex;flex-wrap:wrap;gap:14px;justify-content:center;margin-top:28px;}
  .hero-points{display:flex;flex-wrap:wrap;gap:10px 22px;justify-content:center;list-style:none;margin:26px 0 0;padding:0;font-size:14px;color:#3b3560;font-weight:600;}
  .hero-points li{display:flex;align-items:center;gap:8px;}
  .hero-points li::before{content:"";width:8px;height:8px;border-radius:50%;background:linear-gradient(135deg,#5a2bff,#ff3d7f);flex-shrink:0;}

  .metric-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:14px;margin-top:38px;}
  .metric{background:#fff;border:1px solid var(--line);border-radius:16px;padding:18px 12px;text-align:center;box-shadow:0 16px 32px -26px rgba(42,15,176,.75);transition:transform .22s,box-shadow .22s;}
  .metric:hover{transform:translateY(-4px);box-shadow:0 22px 38px -26px rgba(42,15,176,.85);}
  .metric strong{display:block;font-size:clamp(22px,3vw,30px);color:#2a0fb0;font-weight:800;line-height:1.2;}
  .metric span{display:block;font-size:13px;color:#4a4566;margin-top:4px;}

  /* cards */
  .card{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:22px;box-shadow:0 12px 30px -24px rgba(30,16,90,.6);transition:transform .25s,box-shadow .25s,border-color .25s;}
  .card:hover{transform:translateY(-4px);box-shadow:0 24px 42px -28px rgba(48,24,160,.65);border-color:#d3c7ff;}
  .card h3{font-size:17px;margin:0 0 8px;font-weight:800;line-height:1.45;}
  .card p{margin:0;font-size:14.5px;line-height:1.8;color:#4a4566;}
  .card-dot{display:inline-block;width:30px;height:6px;border-radius:99px;margin-bottom:14px;background:linear-gradient(90deg,#5a2bff,#ff3d7f);}
  .grid{display:grid;gap:18px;align-items:stretch;}
  .grid-6{grid-template-columns:repeat(3,1fr);}
  .grid-4{grid-template-columns:repeat(4,1fr);}
  .grid-3{grid-template-columns:repeat(3,1fr);}
  .grid-2{grid-template-columns:repeat(2,1fr);}

  /* chips */
  .chip-row{display:flex;flex-wrap:wrap;gap:9px;justify-content:center;margin-top:26px;}
  .chip{display:inline-block;font-size:13px;font-weight:600;color:#3b2f8a;background:#fff;border:1px solid #ddd5fb;padding:6px 13px;border-radius:999px;transition:background .2s,color .2s,transform .2s;}
  .chip:hover{background:#2a0fb0;color:#fff;transform:translateY(-2px);border-color:#2a0fb0;}
  .chip-note{margin:18px 0 0;text-align:center;font-size:13px;color:#5d5780;}

  /* timeline / steps */
  .step-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:16px;}
  .step{position:relative;background:#fff;border:1px solid var(--line);border-radius:16px;padding:22px 18px 20px;transition:transform .25s,box-shadow .25s;}
  .step:hover{transform:translateY(-4px);box-shadow:0 22px 40px -30px rgba(42,15,176,.7);}
  .step-num{display:inline-flex;align-items:center;justify-content:center;width:34px;height:34px;border-radius:11px;background:linear-gradient(135deg,#5a2bff,#ff3d7f);color:#fff;font-weight:800;font-size:15px;margin-bottom:12px;}
  .step h3{font-size:16px;margin:0 0 6px;font-weight:800;}
  .step p{margin:0;font-size:14px;color:#4a4566;line-height:1.75;}

  /* table */
  .table-wrap{overflow-x:auto;-webkit-overflow-scrolling:touch;border-radius:16px;border:1px solid var(--line);background:#fff;box-shadow:0 16px 36px -30px rgba(42,15,176,.75);}
  table{width:100%;border-collapse:collapse;min-width:660px;font-size:14.5px;}
  th,td{padding:14px 16px;text-align:left;border-bottom:1px solid #efecfb;vertical-align:top;}
  thead th{background:#f3efff;color:#2a0fb0;font-weight:800;font-size:14px;white-space:nowrap;}
  tbody tr:last-child td{border-bottom:none;}
  tbody tr:hover{background:#faf8ff;}
  td strong{color:#241a5c;}
  .table-note{margin:14px 0 0;font-size:13px;color:#5d5780;}

  /* review score */
  .score-block{display:grid;grid-template-columns:1fr 1.6fr;gap:20px;align-items:start;}
  .score-card{background:linear-gradient(150deg,#2a0fb0,#5a2bff 58%,#ff3d7f);border-radius:20px;padding:30px 24px;color:#fff;text-align:center;box-shadow:0 24px 46px -28px rgba(42,15,176,.95);}
  .score-card .score-label{font-size:13px;letter-spacing:.12em;text-transform:uppercase;color:rgba(255,255,255,.85);margin:0;}
  .score-card .score-value{font-size:56px;font-weight:800;line-height:1.1;margin:8px 0 2px;color:#fff;}
  .score-card .score-full{font-size:14px;color:rgba(255,255,255,.88);margin:0;}
  .score-stars{font-size:20px;letter-spacing:4px;color:#ffd76a;margin:14px 0 10px;}
  .score-card .score-desc{margin:0;font-size:13.5px;line-height:1.7;color:rgba(255,255,255,.92);}

  /* reviews */
  .review-card{background:#fff;border:1px solid var(--line);border-radius:16px;padding:22px;display:flex;flex-direction:column;gap:12px;box-shadow:0 12px 30px -26px rgba(30,16,90,.65);transition:transform .25s,box-shadow .25s;}
  .review-card:hover{transform:translateY(-4px);box-shadow:0 24px 42px -30px rgba(48,24,160,.7);}
  .review-text{margin:0;font-size:14.5px;line-height:1.85;color:#37315a;}
  .review-user{display:flex;align-items:center;gap:11px;margin-top:auto;}
  .avatar{width:40px;height:40px;border-radius:50%;background:linear-gradient(135deg,#5a2bff,#ff3d7f);color:#fff;display:flex;align-items:center;justify-content:center;font-weight:800;font-size:15px;flex-shrink:0;}
  .review-user strong{display:block;font-size:14px;color:#170f3d;}
  .review-user span{display:block;font-size:12.5px;color:#6a6489;}

  /* cases */
  .shot-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px;}
  .shot{margin:0;background:#fff;border:1px solid var(--line);border-radius:16px;overflow:hidden;box-shadow:0 14px 32px -28px rgba(42,15,176,.8);transition:transform .25s,box-shadow .25s;}
  .shot:hover{transform:translateY(-4px);box-shadow:0 24px 44px -30px rgba(42,15,176,.85);}
  .shot-media{aspect-ratio:4 / 3;background:#efeaff;overflow:hidden;}
  .shot-media img{width:100%;height:100%;object-fit:cover;display:block;transition:transform .4s;}
  .shot:hover .shot-media img{transform:scale(1.04);}
  .shot figcaption{padding:12px 16px;font-size:14px;color:#4a4566;font-weight:600;}

  /* articles */
  .article-list{display:grid;grid-template-columns:repeat(2,1fr);gap:14px;}
  .article-item{display:flex;align-items:flex-start;gap:14px;background:#fff;border:1px solid var(--line);border-radius:14px;padding:16px 18px;text-decoration:none;transition:transform .22s,box-shadow .22s,border-color .22s;}
  .article-item:hover{transform:translateY(-3px);border-color:#d3c7ff;box-shadow:0 20px 36px -30px rgba(42,15,176,.75);}
  .article-tag{flex-shrink:0;font-size:12px;font-weight:800;color:#2a0fb0;background:#f0ebff;border-radius:8px;padding:4px 9px;}
  .article-item strong{display:block;font-size:15px;color:#170f3d;line-height:1.6;font-weight:700;}
  .article-item small{display:block;font-size:12.5px;color:#6a6489;margin-top:4px;}

  /* form */
  .contact-layout{display:grid;grid-template-columns:1.45fr 1fr;gap:20px;align-items:start;}
  .form-card{background:#fff;border:1px solid var(--line);border-radius:20px;padding:26px;box-shadow:0 20px 44px -34px rgba(42,15,176,.85);}
  .form-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:16px;}
  .field{display:flex;flex-direction:column;gap:7px;}
  .field.full{grid-column:1 / -1;}
  .field label{font-size:14px;font-weight:700;color:#3a3450;}
  input,select,textarea{width:100%;padding:12px 14px;border:1px solid #ded7f5;border-radius:12px;background:#fbfaff;font-size:15px;color:#16122b;font-family:inherit;transition:border-color .2s,box-shadow .2s,background .2s;}
  input:focus,select:focus,textarea:focus{outline:none;border-color:#7d55ff;background:#fff;box-shadow:0 0 0 3px rgba(125,85,255,.18);}
  textarea{min-height:118px;resize:vertical;}
  .form-submit{margin-top:18px;display:flex;flex-wrap:wrap;align-items:center;gap:14px;}
  .form-submit span{font-size:13px;color:#5d5780;}

  .contact-side{display:flex;flex-direction:column;gap:14px;}
  .contact-card{background:#fff;border:1px solid var(--line);border-radius:18px;padding:20px;box-shadow:0 16px 36px -30px rgba(42,15,176,.8);}
  .contact-card h3{font-size:16px;margin:0 0 12px;font-weight:800;}
  .contact-list{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:9px;font-size:14px;color:#3f3963;}
  .contact-list li{display:flex;gap:9px;align-items:flex-start;line-height:1.65;}
  .contact-list li b{color:#170f3d;font-weight:700;flex-shrink:0;}
  .contact-list a{color:#2a0fb0;text-decoration:none;font-weight:700;word-break:break-all;}
  .contact-list a:hover{text-decoration:underline;}
  .qr-box{text-align:center;}
  .qr-box img{max-width:170px;width:100%;height:auto;border-radius:12px;border:1px solid var(--line);display:block;margin:0 auto 10px;background:#f7f5ff;}
  .qr-box p{margin:0;font-size:13px;color:#5d5780;}

  /* faq */
  .faq-list{display:grid;gap:12px;max-width:940px;margin:0 auto;}
  .faq-item{background:#fff;border:1px solid var(--line);border-radius:14px;padding:0 18px;box-shadow:0 12px 28px -28px rgba(42,15,176,.85);transition:border-color .22s,box-shadow .22s;}
  .faq-item[open]{border-color:#cfc2ff;box-shadow:0 22px 40px -32px rgba(42,15,176,.9);}
  .faq-item summary{list-style:none;cursor:pointer;padding:16px 30px 16px 0;position:relative;font-size:15.5px;font-weight:700;color:#170f3d;line-height:1.6;}
  .faq-item summary::-webkit-details-marker{display:none;}
  .faq-item summary::after{content:"+";position:absolute;right:0;top:50%;transform:translateY(-50%);font-size:20px;font-weight:700;color:#5a2bff;line-height:1;transition:transform .25s;}
  .faq-item[open] summary::after{content:"–";}
  .faq-item p{margin:0 0 16px;font-size:14.5px;line-height:1.85;color:#4a4566;}

  /* footer */
  .site-footer{background:#efeaff;border-top:1px solid #ddd5fb;padding:34px 0 24px;margin-top:10px;}
  .footer-top{display:flex;flex-wrap:wrap;justify-content:space-between;gap:18px;align-items:flex-start;}
  .footer-name{margin:0;font-size:18px;font-weight:800;color:#170f3d;}
  .footer-desc{margin:6px 0 0;font-size:13.5px;color:#4a4566;}
  .footer-links{display:flex;flex-wrap:wrap;gap:10px 18px;}
  .footer-links a{font-size:14px;font-weight:700;color:#2a0fb0;text-decoration:none;}
  .footer-links a:hover{text-decoration:underline;}
  .partner-block{margin-top:24px;padding-top:20px;border-top:1px dashed #d3c7ff;}
  .partner-title{display:block;font-size:13px;font-weight:800;color:#3b3560;letter-spacing:.06em;margin-bottom:12px;}
  .partner-grid{display:flex;flex-wrap:wrap;gap:8px 10px;}
  .partner-grid a{font-size:13px;color:#2a0fb0;text-decoration:none;background:#fff;border:1px solid #ddd5fb;padding:6px 12px;border-radius:999px;transition:background .2s,color .2s,border-color .2s;}
  .partner-grid a:hover{background:#2a0fb0;color:#fff;border-color:#2a0fb0;}
  .footer-bottom{margin-top:22px;padding-top:16px;border-top:1px solid #ded6fb;}
  .footer-bottom p{margin:0;font-size:13px;color:#4a4566;}

  /* floating */
  .float-bar{position:fixed;right:18px;bottom:22px;z-index:90;display:flex;flex-direction:column;gap:10px;}
  .float-btn{width:50px;height:50px;border-radius:50%;display:flex;align-items:center;justify-content:center;border:none;cursor:pointer;font-size:13px;font-weight:800;text-decoration:none;box-shadow:0 14px 28px -14px rgba(42,15,176,.9);transition:transform .2s,opacity .2s,background .2s;}
  .float-btn:hover{transform:translateY(-3px);}
  .float-contact{background:linear-gradient(135deg,#5a2bff,#ff3d7f);color:#fff;writing-mode:horizontal-tb;font-size:12px;line-height:1.15;text-align:center;padding:0 6px;}
  .float-top{background:#fff;color:#2a0fb0;border:1px solid #d9cfff;opacity:0;pointer-events:none;}
  .float-top.show{opacity:1;pointer-events:auto;}

  /* reveal */
  .reveal{transition:opacity .55s ease,transform .55s ease;}
  .reveal.hide{opacity:0;transform:translateY(22px);}
  .reveal.hide.in{opacity:1;transform:none;}

  @media (max-width:1080px){
    .nav-wrap{display:none;position:absolute;top:100%;left:0;right:0;flex-direction:column;align-items:stretch;gap:10px;background:#fff;border-bottom:1px solid var(--line);padding:12px 22px 18px;box-shadow:0 24px 36px -28px rgba(22,18,43,.55);}
    .nav-wrap.open{display:flex;}
    .nav-links{flex-direction:column;align-items:stretch;}
    .nav-links a{padding:11px 8px;font-size:15px;}
    .nav-toggle{display:flex;}
    .nav-wrap .btn{width:100%;}
    .grid-6,.grid-4,.step-grid{grid-template-columns:repeat(2,1fr);}
    .contact-layout{grid-template-columns:1fr;}
    .score-block{grid-template-columns:1fr;}
  }
  @media (max-width:760px){
    .section{padding:46px 0;}
    .hero{padding:52px 0 18px;}
    .metric-grid{grid-template-columns:repeat(2,1fr);}
    .grid-6,.grid-4,.grid-3,.grid-2,.step-grid,.shot-grid,.article-list,.form-grid{grid-template-columns:1fr;}
    .hero-actions .btn{flex:1 1 42%;padding:13px 18px;}
    .section-head{margin-bottom:26px;}
    .float-bar{right:12px;bottom:16px;}
    .float-btn{width:46px;height:46px;}
  }
  @media (prefers-reduced-motion:reduce){
    *{animation:none !important;transition:none !important;}
    .reveal.hide{opacity:1;transform:none;}
    html{scroll-behavior:auto;}
  }