:root{
      --bg:#f7f5ef;
      --bg2:#eef3fb;
      --card:#ffffff;
      --text:#1f2937;
      --muted:#5d6677;
      --line:#e6e0d6;
      --brand:#2a65ff;
      --brand2:#7c4dff;
      --accent:#ff8a5b;
      --accent2:#20b8a8;
      --shadow:0 18px 40px rgba(35, 45, 66, .10);
      --radius:22px;
      --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 top left, rgba(42,101,255,.10), transparent 30%),
        radial-gradient(circle at top right, rgba(255,138,91,.10), transparent 28%),
        linear-gradient(180deg, #fbfaf6 0%, #f4f7fb 40%, #f7f5ef 100%);
    }
    a{color:var(--brand);text-decoration:none}
    img{display:block;max-width:100%}
    .container{width:min(var(--container), calc(100% - 32px)); margin:0 auto}
    header,main,footer{position:relative;z-index:1}
    .topbar{
      position:sticky;top:0;backdrop-filter:blur(16px);
      background:rgba(247,245,239,.82); border-bottom:1px solid rgba(230,224,214,.8);
      z-index:50;
    }
    .nav{
      display:flex; align-items:center; justify-content:space-between; gap:16px; padding:14px 0;
    }
    .brand{display:flex; align-items:center; gap:12px; min-width:0}
    .brand img{width:44px;height:44px;object-fit:contain;border-radius:12px;background:#fff;box-shadow:0 8px 24px rgba(0,0,0,.08)}
    .brand h2{margin:0;font-size:18px;line-height:1.1}
    .brand p{margin:3px 0 0;color:var(--muted);font-size:12px}
    .menu{display:flex;flex-wrap:wrap;gap:10px; align-items:center; justify-content:flex-end}
    .menu a,.menu button{
      border:1px solid var(--line); background:#fff; color:var(--text);
      padding:10px 14px; border-radius:999px; font-size:14px; cursor:pointer;
      transition:.25s ease; box-shadow:0 6px 20px rgba(31,41,55,.05)
    }
    .menu a:hover,.menu button:hover{transform:translateY(-1px); border-color:#c9d5ff; box-shadow:0 10px 24px rgba(42,101,255,.12)}
    .menu .primary{background:linear-gradient(135deg,var(--brand),var(--brand2)); color:#fff; border-color:transparent}
    .menu .primary:hover{box-shadow:0 12px 28px rgba(42,101,255,.28)}
    .burger{display:none}
    .hero{
      padding:34px 0 18px;
    }
    .hero-grid{
      display:grid; grid-template-columns:1.25fr .75fr; gap:22px; align-items:stretch;
    }
    .hero-card{
      background:linear-gradient(135deg, rgba(255,255,255,.96), rgba(245,248,255,.94));
      border:1px solid rgba(212,219,235,.9);
      border-radius:28px; box-shadow:var(--shadow); padding:28px;
      overflow:hidden; position:relative;
    }
    .hero-card::before,.hero-card::after{
      content:""; position:absolute; inset:auto auto 18px 18px; width:170px; height:170px; border-radius:50%;
      background:radial-gradient(circle, rgba(42,101,255,.15), transparent 70%);
      filter:blur(6px); pointer-events:none;
    }
    .hero-card::after{inset:18px 18px auto auto; width:220px;height:220px; background:radial-gradient(circle, rgba(255,138,91,.12), transparent 70%)}
    .eyebrow{display:inline-flex; gap:8px; align-items:center; padding:8px 12px; border-radius:999px; background:#eef4ff; color:#2348b3; font-size:13px; font-weight:600}
    h1{margin:14px 0 14px; font-size:clamp(30px, 4vw, 48px); line-height:1.08}
    .lead{margin:0; font-size:16px; line-height:1.8; color:var(--muted); max-width:62ch}
    .hero-actions{display:flex; flex-wrap:wrap; gap:12px; margin-top:22px}
    .btn{
      display:inline-flex; align-items:center; justify-content:center; gap:8px;
      padding:13px 18px; border-radius:14px; border:1px solid transparent; font-weight:700;
      transition:.25s ease; cursor:pointer; min-height:48px;
    }
    .btn:hover{transform:translateY(-2px)}
    .btn-primary{background:linear-gradient(135deg,var(--brand),var(--brand2)); color:#fff; box-shadow:0 14px 30px rgba(42,101,255,.22)}
    .btn-ghost{background:#fff; color:var(--text); border-color:var(--line)}
    .hero-meta{display:grid; grid-template-columns:repeat(3,1fr); gap:12px; margin-top:22px}
    .mini{
      padding:14px; border-radius:18px; background:rgba(255,255,255,.82);
      border:1px solid rgba(230,224,214,.9)
    }
    .mini strong{display:block; font-size:18px; margin-bottom:4px}
    .mini span{color:var(--muted); font-size:13px; line-height:1.6}
    .side{
      display:grid; gap:14px;
    }
    .side-card{
      background:rgba(255,255,255,.92); border:1px solid rgba(230,224,214,.9); border-radius:24px; box-shadow:var(--shadow); padding:18px;
    }
    .side-card h3{margin:0 0 10px; font-size:18px}
    .tags{display:flex; flex-wrap:wrap; gap:10px}
    .tag{padding:8px 12px; border-radius:999px; background:#f3f7ff; color:#3150aa; font-size:13px; border:1px solid #dbe5ff}
    section{padding:18px 0}
    .section-head{
      display:flex; justify-content:space-between; gap:16px; align-items:end; margin-bottom:16px;
    }
    .section-head h2{margin:0; font-size:28px}
    .section-head p{margin:0; color:var(--muted); line-height:1.7; max-width:62ch}
    .grid-4{display:grid; grid-template-columns:repeat(4,1fr); gap:14px}
    .grid-3{display:grid; grid-template-columns:repeat(3,1fr); gap:14px}
    .grid-2{display:grid; grid-template-columns:repeat(2,1fr); gap:14px}
    .card{
      background:rgba(255,255,255,.94); border:1px solid rgba(230,224,214,.95);
      border-radius:22px; box-shadow:0 10px 26px rgba(31,41,55,.06); padding:18px;
      transition:.25s ease;
    }
    .card:hover{transform:translateY(-3px); box-shadow:0 18px 32px rgba(31,41,55,.10)}
    .card h3{margin:0 0 10px; font-size:18px}
    .card p{margin:0; color:var(--muted); line-height:1.75}
    .metric{display:flex; flex-direction:column; gap:8px}
    .metric strong{font-size:30px}
    .metric small{color:var(--muted)}
    .pill-list{display:flex; flex-wrap:wrap; gap:10px}
    .pill{padding:10px 12px; background:#f8fafc; border:1px solid #e5ebf4; border-radius:14px; color:#334155; font-size:13px}
    .timeline{display:grid; gap:12px}
    .step{
      display:grid; grid-template-columns:64px 1fr; gap:14px; align-items:flex-start; padding:18px;
      background:linear-gradient(180deg,#fff,#fafbfd); border:1px solid #e9eef6; border-radius:22px;
    }
    .num{
      width:64px;height:64px;border-radius:18px; display:grid; place-items:center;
      background:linear-gradient(135deg, rgba(42,101,255,.12), rgba(124,77,255,.12)); color:#1d4ed8; font-size:20px; font-weight:800;
    }
    .table-wrap{overflow:auto;border-radius:22px;border:1px solid #e7ebf2;background:#fff;box-shadow:var(--shadow)}
    table{width:100%; border-collapse:collapse; min-width:760px}
    th,td{padding:16px 14px; border-bottom:1px solid #edf1f7; text-align:left; vertical-align:top}
    th{background:#f7f9fd; font-size:14px}
    td{color:#374151; line-height:1.65}
    .good{color:#0f766e; font-weight:700}
    .bad{color:#b42318; font-weight:700}
    details{
      background:#fff; border:1px solid #e8edf5; border-radius:18px; padding:14px 16px; box-shadow:0 8px 24px rgba(31,41,55,.05)
    }
    details+details{margin-top:10px}
    summary{cursor:pointer; font-weight:700; list-style:none}
    summary::-webkit-details-marker{display:none}
    details p{margin:10px 0 0; color:var(--muted); line-height:1.75}
    .review{
      display:flex; flex-direction:column; gap:12px; height:100%
    }
    .avatar{
      width:46px;height:46px;border-radius:14px; display:grid; place-items:center;
      background:linear-gradient(135deg,var(--accent),#ffd1b7); color:#fff; font-weight:800
    }
    .review-top{display:flex; gap:12px; align-items:center}
    .review-top strong{display:block}
    .stars{color:#f59e0b; letter-spacing:1px}
    .article-list{display:grid; gap:12px}
    .article{
      display:flex; gap:14px; align-items:flex-start; padding:16px 0; border-bottom:1px dashed #e6eaf2
    }
    .article:last-child{border-bottom:0}
    .badge{font-size:12px; color:#1d4ed8; background:#eaf1ff; padding:6px 10px; border-radius:999px; display:inline-block; margin-bottom:8px}
    form{
      display:grid; grid-template-columns:repeat(2,1fr); gap:14px;
      background:rgba(255,255,255,.95); border:1px solid #e6e0d6; border-radius:24px; padding:18px; box-shadow:var(--shadow)
    }
    .full{grid-column:1/-1}
    label{display:block; font-size:14px; font-weight:700; margin-bottom:8px}
    input,select,textarea{
      width:100%; border:1px solid #d9e0eb; background:#fff; color:var(--text);
      border-radius:14px; padding:13px 14px; font:inherit; outline:none; transition:.2s ease;
    }
    input:focus,select:focus,textarea:focus{border-color:#8fb0ff; box-shadow:0 0 0 4px rgba(42,101,255,.10)}
    textarea{min-height:120px; resize:vertical}
    .submit{background:linear-gradient(135deg,var(--accent),#ffb07d); color:#fff; border:none}
    .footer{
      margin-top:12px; padding:24px 0 30px; border-top:1px solid #e6e0d6; background:rgba(248,246,240,.9)
    }
    .footer-grid{display:grid; grid-template-columns:1.1fr .9fr; gap:16px}
    .footer small,.footer p,.footer li{color:#4b5563; line-height:1.7}
    .footer a{color:#1f4fbf}
    .links{display:flex; flex-wrap:wrap; gap:10px}
    .links a{padding:8px 10px; border-radius:12px; background:#fff; border:1px solid #e6ebf5}
    .floating{
      position:fixed; right:16px; bottom:16px; z-index:60; display:flex; flex-direction:column; gap:10px;
    }
    .float-btn{
      width:52px;height:52px;border-radius:16px; display:grid; place-items:center; background:linear-gradient(135deg,var(--brand),var(--brand2));
      color:#fff; box-shadow:0 16px 30px rgba(42,101,255,.25); border:none; cursor:pointer
    }
    .float-panel{
      width:min(320px, calc(100vw - 32px)); background:#fff; border:1px solid #e6eaf2; border-radius:20px;
      box-shadow:var(--shadow); padding:14px; display:none
    }
    .float-panel.open{display:block}
    .float-panel img{border-radius:16px; border:1px solid #edf1f7}
    .scroll-top{display:none}
    .scroll-top.show{display:grid}
    .anchor{scroll-margin-top:92px}
    .muted{color:var(--muted)}
    .wide-image{
      display:grid; grid-template-columns:repeat(2,1fr); gap:14px;
    }
    .wide-image img,.square-image img{
      width:100%; height:auto; border-radius:18px; border:1px solid #e6eaf2; box-shadow:0 12px 26px rgba(31,41,55,.08)
    }
    .social-row{display:grid; grid-template-columns:repeat(3,1fr); gap:12px}
    .social{
      padding:14px; border-radius:18px; background:linear-gradient(180deg,#fff,#f8fbff); border:1px solid #e7ecf4
    }
    .compare-badge{display:inline-block;padding:7px 10px;border-radius:999px;background:#eefdf8;color:#0f766e;font-weight:700}
    .rating{font-size:20px;font-weight:800;color:#0f766e}
    .compact-list{margin:0;padding-left:18px;color:var(--muted);line-height:1.8}
    .mobile-only{display:none}
    @media (max-width: 1024px){
      .hero-grid,.grid-4,.grid-3,.grid-2,.footer-grid,.wide-image,.social-row{grid-template-columns:1fr}
      .hero-meta{grid-template-columns:1fr}
      .section-head{flex-direction:column; align-items:flex-start}
    }
    @media (max-width: 768px){
      .menu{display:none; width:100%; padding:12px 0 0}
      .menu.open{display:flex}
      .nav{flex-wrap:wrap}
      .burger{display:inline-flex}
      form{grid-template-columns:1fr}
      .mobile-only{display:block}
      .hero-card{padding:22px}
      .brand h2{font-size:16px}
    }