:root{
      --bg: #fff7f0;
      --panel: #ffffff;
      --text: #1f2328;
      --muted: #5b6068;
      --line: rgba(28,36,48,.10);
      --shadow: 0 10px 30px rgba(28,36,48,.08);
      --shadow2: 0 8px 18px rgba(28,36,48,.10);
      --orange: #ff8a4c;
      --orange2:#ffb37f;
      --orange3:#ff6f2a;
      --mint:#35c7a6;
      --mint2:#b7f3e7;
      --blue:#2f6bff;
      --chip:#fff0e6;
      --radius: 18px;
      --radius2: 14px;
      --focus: 0 0 0 4px rgba(255,138,76,.25);
      --container: 1120px;
    }
    *{box-sizing:border-box}
    html,body{height:100%}
    body{
      margin:0;
      font-family: ui-sans-serif, system-ui, -apple-system, Segoe UI, Roboto, Helvetica, Arial, "PingFang SC","Hiragino Sans GB","Microsoft YaHei", "Noto Sans SC", sans-serif;
      color:var(--text);
      background:
        radial-gradient(1200px 520px at 12% -8%, rgba(255,138,76,.35), transparent 55%),
        radial-gradient(900px 420px at 88% 0%, rgba(53,199,166,.18), transparent 55%),
        radial-gradient(680px 360px at 50% 10%, rgba(47,107,255,.12), transparent 60%),
        linear-gradient(180deg, #fff7f0 0%, #ffffff 46%, #fffdfb 100%);
    }
    a{color:inherit}
    .skip{
      position:absolute; left:-9999px; top:8px;
      background:#111; color:#fff; padding:10px 12px; border-radius:10px;
      z-index:9999;
    }
    .skip:focus{left:12px; outline:none; box-shadow:var(--focus)}
    .container{
      max-width: var(--container);
      margin: 0 auto;
      padding: 0 18px;
    }

    header{
      position: sticky;
      top: 0;
      z-index: 50;
      backdrop-filter: blur(10px);
      background: rgba(255,247,240,.72);
      border-bottom: 1px solid rgba(28,36,48,.08);
    }
    .navbar{
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:14px;
      padding: 14px 0;
    }
    .brand{
      display:flex;
      align-items:center;
      gap:10px;
      min-width: 200px;
    }
    .logo-mark{
      width:44px;height:44px;
      border-radius: 14px;
      background: linear-gradient(135deg, var(--orange) 0%, #ffb08a 70%, #ffd9c3 100%);
      box-shadow: 0 10px 22px rgba(255,138,76,.25);
      display:flex; align-items:center; justify-content:center;
      border: 1px solid rgba(28,36,48,.10);
    }
    .logo-mark span{
      font-weight: 900;
      letter-spacing: 1px;
      font-size: 20px;
      color:#1a1a1a;
    }
    .brand strong{
      display:block;
      font-size: 14px;
      line-height: 1.1;
      letter-spacing: .2px;
    }
    .brand small{
      display:block;
      color: var(--muted);
      font-size: 12px;
      margin-top: 2px;
    }

    .nav-right{
      display:flex;
      align-items:center;
      gap:10px;
      flex-wrap:wrap;
      justify-content:flex-end;
    }
    .menu{
      display:flex;
      align-items:center;
      gap:8px;
      flex-wrap:wrap;
      justify-content:flex-end;
    }
    .nav-link{
      text-decoration:none;
      padding:10px 10px;
      border-radius: 12px;
      color: #2a2f36;
      border: 1px solid transparent;
      background: transparent;
      font-size: 13px;
      letter-spacing: .1px;
      transition: transform .15s ease, background .2s ease, border-color .2s ease;
      white-space:nowrap;
    }
    .nav-link:hover{
      background: rgba(255,138,76,.10);
      border-color: rgba(255,138,76,.25);
      transform: translateY(-1px);
    }

    .btn{
      border: 1px solid rgba(28,36,48,.10);
      background: var(--panel);
      color: #1f2328;
      border-radius: 14px;
      padding: 10px 12px;
      font-weight: 700;
      font-size: 13px;
      cursor:pointer;
      transition: transform .15s ease, box-shadow .2s ease, border-color .2s ease, background .2s ease;
      text-decoration:none;
      display:inline-flex;
      align-items:center;
      gap:8px;
      white-space:nowrap;
    }
    .btn:focus{outline:none; box-shadow:var(--focus)}
    .btn:hover{transform: translateY(-1px); box-shadow: 0 10px 20px rgba(28,36,48,.08)}
    .btn-primary{
      background: linear-gradient(135deg, var(--orange) 0%, #ff6f2a 100%);
      border-color: rgba(255,111,42,.35);
      color: #181818;
      box-shadow: 0 14px 30px rgba(255,138,76,.22);
    }
    .btn-primary:hover{
      box-shadow: 0 18px 40px rgba(255,138,76,.28);
    }
    .btn-icon{
      width:18px;height:18px; display:inline-block;
    }

    .mobile-toggle{
      display:none;
    }
    .mobile-panel{
      display:none;
      padding: 0 0 14px;
    }
    .mobile-panel .menu{
      justify-content:flex-start;
    }

    .hero{
      padding: 26px 0 12px;
    }
    .hero-grid{
      display:grid;
      grid-template-columns: 1.15fr .85fr;
      gap: 18px;
      align-items: stretch;
    }
    .hero-card{
      background: linear-gradient(180deg, rgba(255,255,255,.86) 0%, rgba(255,255,255,.72) 100%);
      border: 1px solid rgba(28,36,48,.10);
      border-radius: calc(var(--radius) + 4px);
      box-shadow: var(--shadow);
      overflow:hidden;
      position:relative;
    }
    .hero-card::before{
      content:"";
      position:absolute;
      inset:-2px -2px auto -2px;
      height: 210px;
      background:
        radial-gradient(420px 150px at 22% 40%, rgba(255,138,76,.40), transparent 60%),
        radial-gradient(320px 120px at 70% 28%, rgba(53,199,166,.18), transparent 60%);
      pointer-events:none;
    }
    .hero-inner{
      position:relative;
      padding: 22px 22px 18px;
      display:flex;
      flex-direction:column;
      gap: 14px;
    }

    .pill-row{
      display:flex;
      gap:10px;
      flex-wrap:wrap;
      align-items:center;
    }
    .pill{
      display:inline-flex;
      align-items:center;
      gap:8px;
      padding: 8px 10px;
      border-radius: 999px;
      background: rgba(255,240,230,.92);
      border: 1px solid rgba(255,138,76,.20);
      font-size: 12px;
      color: #2a2f36;
      user-select:none;
      white-space:nowrap;
    }
    .dot{
      width:10px; height:10px; border-radius: 50%;
      background: linear-gradient(135deg, var(--orange) 0%, #ff6f2a 100%);
      box-shadow: 0 8px 16px rgba(255,138,76,.25);
    }

    h1{
      margin: 0;
      font-size: 34px;
      line-height: 1.12;
      letter-spacing: -0.5px;
    }
    .lead{
      margin:0;
      color: var(--muted);
      font-size: 15px;
      line-height: 1.7;
      max-width: 62ch;
    }
    .hero-actions{
      display:flex;
      gap:12px;
      flex-wrap:wrap;
      align-items:center;
      margin-top: 4px;
    }
    .quick-form{
      display:flex;
      gap:10px;
      flex-wrap:wrap;
      align-items:center;
      margin-top: 4px;
    }
    .field{
      display:flex;
      flex-direction:column;
      gap:6px;
    }
    .label{
      font-size: 12px;
      color: var(--muted);
    }
    .select, .input{
      border: 1px solid rgba(28,36,48,.12);
      background: rgba(255,255,255,.88);
      border-radius: 14px;
      padding: 10px 12px;
      font-size: 13px;
      color: #1f2328;
      min-width: 170px;
    }
    .select:focus, .input:focus{outline:none; box-shadow: var(--focus); border-color: rgba(255,138,76,.45)}
    .hint{
      font-size: 12px;
      color: var(--muted);
      margin: 2px 0 0;
    }

    .hero-side{
      display:flex;
      flex-direction:column;
      gap: 14px;
    }
    .side-card{
      background: rgba(255,255,255,.78);
      border: 1px solid rgba(28,36,48,.10);
      border-radius: var(--radius);
      box-shadow: 0 10px 22px rgba(28,36,48,.06);
      padding: 16px 16px 14px;
      position:relative;
      overflow:hidden;
      transform: translateZ(0);
      animation: riseIn .55s ease both;
    }
    @keyframes riseIn{
      from{opacity:0; transform: translateY(10px)}
      to{opacity:1; transform: translateY(0)}
    }
    .side-card:nth-child(2){animation-delay:.08s}
    .side-title{
      display:flex; align-items:center; justify-content:space-between; gap:10px;
      margin-bottom: 10px;
    }
    .side-title h2{
      margin:0;
      font-size: 14px;
      letter-spacing:.2px;
    }
    .badge{
      background: rgba(53,199,166,.12);
      border: 1px solid rgba(53,199,166,.25);
      color: #134a3b;
      padding: 6px 10px;
      border-radius: 999px;
      font-size: 12px;
      white-space:nowrap;
    }
    .side-list{
      margin:0;
      padding:0;
      list-style:none;
      display:flex;
      flex-direction:column;
      gap:10px;
    }
    .side-item{
      display:flex; gap:10px; align-items:flex-start;
      padding: 10px 10px;
      background: rgba(255,255,255,.72);
      border: 1px solid rgba(28,36,48,.08);
      border-radius: 14px;
      transition: transform .18s ease, border-color .2s ease, background .2s ease;
    }
    .side-item:hover{
      transform: translateY(-1px);
      border-color: rgba(255,138,76,.35);
      background: rgba(255,255,255,.88);
    }
    .side-ico{
      width:26px;height:26px;
      border-radius: 10px;
      display:flex;align-items:center;justify-content:center;
      background: rgba(255,138,76,.12);
      border: 1px solid rgba(255,138,76,.22);
      flex:0 0 auto;
      margin-top: 1px;
    }
    .side-item strong{
      font-size: 13px;
      display:block;
      margin:0;
    }
    .side-item span{
      font-size: 12px;
      color: var(--muted);
      display:block;
      margin-top: 2px;
      line-height: 1.5;
    }

    main{padding: 14px 0 22px}
    section{padding: 14px 0}
    .section-head{
      display:flex;
      align-items:flex-end;
      justify-content:space-between;
      gap:14px;
      margin: 10px 0 12px;
    }
    h2{
      margin:0;
      font-size: 18px;
      letter-spacing: -0.2px;
    }
    .sub{
      margin:0;
      color: var(--muted);
      font-size: 13px;
      line-height: 1.6;
      max-width: 60ch;
    }

    .grid-2{
      display:grid;
      grid-template-columns: 1fr 1fr;
      gap: 14px;
      align-items:stretch;
    }
    .card{
      background: rgba(255,255,255,.78);
      border: 1px solid rgba(28,36,48,.10);
      border-radius: var(--radius);
      box-shadow: 0 10px 22px rgba(28,36,48,.05);
      padding: 16px 16px 14px;
      overflow:hidden;
    }
    .card h3{
      margin:0 0 10px;
      font-size: 15px;
      letter-spacing: .1px;
    }
    .card p{
      margin:0;
      color: var(--muted);
      line-height: 1.7;
      font-size: 13px;
    }
    .steps{
      display:flex;
      flex-direction:column;
      gap: 10px;
    }
    .step{
      display:flex;
      gap:12px;
      align-items:flex-start;
      padding: 12px 12px;
      border-radius: 14px;
      border: 1px solid rgba(28,36,48,.08);
      background: rgba(255,255,255,.70);
    }
    .step-num{
      width:30px;height:30px;
      border-radius: 12px;
      background: rgba(255,138,76,.14);
      border: 1px solid rgba(255,138,76,.26);
      display:flex;align-items:center;justify-content:center;
      font-weight: 900;
      color:#1f2328;
      flex:0 0 auto;
    }
    .step strong{
      display:block;
      font-size: 13px;
      margin-top: 1px;
    }
    .step span{
      display:block;
      color: var(--muted);
      font-size: 12px;
      line-height: 1.55;
      margin-top: 3px;
    }

    .topic-grid{
      display:grid;
      grid-template-columns: 1.05fr .95fr;
      gap: 14px;
      align-items:start;
    }
    .tablelike{
      display:flex;
      flex-direction:column;
      gap:10px;
    }
    .row{
      display:grid;
      grid-template-columns: 1fr 1fr;
      gap: 10px;
    }
    .mini{
      padding: 12px 12px;
      border-radius: 14px;
      border: 1px solid rgba(28,36,48,.08);
      background: rgba(255,255,255,.70);
      transition: transform .18s ease, border-color .2s ease;
    }
    .mini:hover{
      transform: translateY(-1px);
      border-color: rgba(53,199,166,.35);
    }
    .mini strong{
      display:flex; align-items:center; gap:8px;
      font-size: 13px;
    }
    .tag{
      width:10px;height:10px;border-radius:50%;
      background: linear-gradient(135deg, var(--mint) 0%, #1bb98f 100%);
      box-shadow: 0 10px 18px rgba(53,199,166,.22);
      border: 1px solid rgba(53,199,166,.25);
    }
    .mini p{
      margin-top: 6px;
      color: var(--muted);
      font-size: 12px;
      line-height: 1.55;
    }

    .faq{
      display:grid;
      grid-template-columns: 1fr;
      gap: 10px;
    }
    details.faq-item{
      background: rgba(255,255,255,.78);
      border: 1px solid rgba(28,36,48,.10);
      border-radius: var(--radius);
      box-shadow: 0 10px 22px rgba(28,36,48,.05);
      overflow:hidden;
      transition: border-color .2s ease, transform .18s ease;
    }
    details.faq-item[open]{
      border-color: rgba(255,138,76,.35);
      transform: translateY(-1px);
    }
    details.faq-item summary{
      list-style:none;
      cursor:pointer;
      padding: 14px 16px;
      display:flex;
      gap:12px;
      align-items:flex-start;
      justify-content:space-between;
    }
    details.faq-item summary::-webkit-details-marker{display:none}
    .q{
      display:flex; gap:10px; align-items:flex-start;
    }
    .q-ico{
      width:28px;height:28px;
      border-radius: 12px;
      background: rgba(255,138,76,.14);
      border: 1px solid rgba(255,138,76,.24);
      display:flex; align-items:center; justify-content:center;
      flex: 0 0 auto;
      margin-top: 1px;
    }
    summary strong{
      font-size: 14px;
      display:block;
      line-height: 1.45;
    }
    summary span{
      display:block;
      margin-top: 4px;
      color: var(--muted);
      font-size: 12px;
      line-height: 1.5;
    }
    .chev{
      width:22px;height:22px;
      border-radius: 10px;
      border: 1px solid rgba(28,36,48,.10);
      background: rgba(255,255,255,.7);
      display:flex;align-items:center;justify-content:center;
      margin-top: 2px;
      transition: transform .2s ease;
      flex: 0 0 auto;
    }
    details[open] .chev{transform: rotate(180deg)}
    .faq-body{
      padding: 0 16px 16px;
      color: var(--muted);
      font-size: 13px;
      line-height: 1.75;
    }
    .faq-body ul{
      margin: 8px 0 0;
      padding-left: 18px;
    }
    .faq-body li{margin: 6px 0}

    .divider{
      height:1px;
      background: rgba(28,36,48,.10);
      margin: 16px 0 0;
    }

    .gallery{
      display:grid;
      grid-template-columns: 1fr .95fr;
      gap: 14px;
      align-items:start;
    }
    .img-card{
      padding: 14px;
      background: rgba(255,255,255,.78);
      border: 1px solid rgba(28,36,48,.10);
      border-radius: var(--radius);
      box-shadow: 0 10px 22px rgba(28,36,48,.05);
    }
    .img-wrap{
      border-radius: 14px;
      overflow:hidden;
      border: 1px solid rgba(28,36,48,.10);
      background: rgba(255,255,255,.6);
    }
    .img-wrap img{
      width:100%;
      height:auto;
      display:block;
      object-fit:contain;
    }
    .img-meta{
      margin-top: 10px;
      display:flex;
      gap: 10px;
      flex-wrap:wrap;
      align-items:center;
      justify-content:space-between;
    }
    .img-meta p{
      margin:0;
      color: var(--muted);
      font-size: 12px;
      line-height: 1.6;
    }

    .footer{
      background: rgba(255,250,246,.86);
      border-top: 1px solid rgba(28,36,48,.08);
      padding: 16px 0 20px;
      margin-top: 6px;
    }
    .footer-grid{
      display:grid;
      grid-template-columns: 1.2fr .8fr;
      gap: 14px;
      align-items:start;
    }
    .foot-card{
      background: rgba(255,255,255,.78);
      border: 1px solid rgba(28,36,48,.10);
      border-radius: var(--radius);
      padding: 14px 14px 12px;
      box-shadow: 0 10px 22px rgba(28,36,48,.04);
    }
    .foot-card h3{margin:0 0 10px; font-size: 14px}
    .kv{
      display:flex;
      flex-direction:column;
      gap:8px;
    }
    .kv .item{
      display:flex;
      gap:10px;
      align-items:flex-start;
      padding: 10px 10px;
      border-radius: 14px;
      border: 1px solid rgba(28,36,48,.08);
      background: rgba(255,255,255,.70);
    }
    .kv .item b{font-size:13px}
    .kv .item span{display:block; margin-top:2px; font-size:12px; color:var(--muted); line-height:1.55}

    .links{
      display:flex;
      gap:10px;
      flex-wrap:wrap;
    }
    .foot-link{
      text-decoration:none;
      padding: 10px 12px;
      border-radius: 14px;
      border: 1px solid rgba(28,36,48,.10);
      background: rgba(255,255,255,.78);
      font-weight: 700;
      font-size: 13px;
      transition: transform .15s ease, border-color .2s ease;
    }
    .foot-link:hover{transform: translateY(-1px); border-color: rgba(255,138,76,.35)}
    .copyright{
      margin-top: 12px;
      color: var(--muted);
      font-size: 12px;
      text-align:center;
    }

    .float-tip{
      position: fixed;
      right: 14px;
      bottom: 14px;
      z-index: 60;
      display:flex;
      flex-direction:column;
      gap:10px;
      align-items:flex-end;
      pointer-events:none;
    }
    .toast{
      pointer-events:auto;
      background: rgba(255,255,255,.85);
      border: 1px solid rgba(28,36,48,.10);
      border-radius: 16px;
      padding: 10px 12px;
      box-shadow: 0 18px 40px rgba(28,36,48,.12);
      max-width: 260px;
      transform: translateY(10px);
      opacity:0;
      animation: toastIn .5s ease forwards;
    }
    @keyframes toastIn{
      to{transform: translateY(0); opacity:1}
    }
    .toast strong{display:block; font-size: 13px}
    .toast span{display:block; color:var(--muted); font-size: 12px; line-height:1.5; margin-top: 3px}
    .toast .actions{
      display:flex; gap:10px; margin-top: 10px; align-items:center; flex-wrap:wrap;
    }
    .btn-small{
      padding: 9px 10px;
      border-radius: 14px;
      font-size: 12px;
    }

    .to-top{
      pointer-events:auto;
      width: 46px;
      height: 46px;
      border-radius: 16px;
      background: linear-gradient(135deg, rgba(255,138,76,.95) 0%, rgba(255,111,42,.95) 100%);
      border: 1px solid rgba(255,111,42,.35);
      box-shadow: 0 18px 40px rgba(255,138,76,.26);
      display:flex; align-items:center; justify-content:center;
      cursor:pointer;
      transition: transform .18s ease;
    }
    .to-top:hover{transform: translateY(-2px)}
    .to-top:focus{outline:none; box-shadow: var(--focus)}
    .to-top svg{width:20px;height:20px; color:#181818}

    .keywords-row{
      display:flex; gap:8px; flex-wrap:wrap;
    }
    .kw{
      font-size: 12px;
      padding: 7px 10px;
      border-radius: 999px;
      background: rgba(255,240,230,.92);
      border: 1px solid rgba(255,138,76,.20);
      color:#2a2f36;
      user-select:none;
    }

    @media (max-width: 980px){
      .hero-grid{grid-template-columns: 1fr}
      .gallery{grid-template-columns: 1fr}
      .topic-grid{grid-template-columns: 1fr}
      .grid-2{grid-template-columns: 1fr}
      h1{font-size: 30px}
      .footer-grid{grid-template-columns: 1fr}
      .mobile-toggle{display:inline-flex}
      .menu{display:none}
      .mobile-panel{display:block}
    }