:root{
      --bg: #f6f0e6;
      --panel: #fbf7f1;
      --ink: #2b1f17;
      --muted: #6a5447;
      --brand: #9a5a3a;
      --brand2: #c27b57;
      --line: rgba(58, 35, 22, .12);
      --shadow: 0 10px 30px rgba(29, 16, 8, .10);
      --shadow2: 0 6px 18px rgba(29, 16, 8, .10);
      --radius: 18px;
    }
    *{ box-sizing: border-box; }
    html,body{ height:100%; }
    body{
      margin:0;
      font-family: ui-sans-serif, system-ui, -apple-system, "PingFang SC","Hiragino Sans GB","Microsoft YaHei", Arial, "Noto Sans SC", sans-serif;
      color: var(--ink);
      background:
        radial-gradient(900px 420px at 15% -10%, rgba(194,123,87,.18), transparent 55%),
        radial-gradient(700px 360px at 90% 0%, rgba(154,90,58,.14), transparent 52%),
        linear-gradient(180deg, #f7f2e9 0%, #f6f0e6 40%, #f5efe4 100%);
    }
    a{ color: inherit; text-decoration: none; }
    .container{
      width: min(1120px, calc(100% - 28px));
      margin: 0 auto;
    }

    .topbar{
      position: sticky;
      top:0;
      z-index: 20;
      backdrop-filter: blur(10px);
      background: rgba(246,240,230,.72);
      border-bottom: 1px solid rgba(58,35,22,.08);
    }
    .nav{
      display:flex;
      align-items:center;
      justify-content: space-between;
      padding: 14px 0;
      gap: 14px;
    }
    .brand{
      display:flex;
      align-items:center;
      gap: 12px;
      min-width: 140px;
    }
    .logo{
      width: 38px;
      height: 38px;
      border-radius: 12px;
      background: linear-gradient(145deg, var(--brand2), var(--brand));
      box-shadow: 0 10px 20px rgba(154,90,58,.22);
      display:flex;
      align-items:center;
      justify-content:center;
      color:#fff;
      font-weight: 900;
      letter-spacing: .5px;
      font-size: 18px;
    }
    .brand-title{
      display:flex;
      flex-direction: column;
      line-height: 1.1;
    }
    .brand-title strong{
      font-size: 14px;
      letter-spacing: .2px;
    }
    .brand-title span{
      font-size: 12px;
      color: var(--muted);
      margin-top: 4px;
    }

    .nav-right{
      display:flex;
      align-items:center;
      gap: 10px;
      flex-wrap: wrap;
      justify-content: flex-end;
    }
    .nav-links{
      display:flex;
      align-items:center;
      gap: 12px;
    }
    .nav-links a{
      font-size: 14px;
      color: var(--muted);
      padding: 8px 10px;
      border-radius: 12px;
      transition: background .2s ease, color .2s ease, transform .2s ease;
      white-space: nowrap;
    }
    .nav-links a:hover{
      background: rgba(154,90,58,.10);
      color: var(--ink);
      transform: translateY(-1px);
    }
    .nav-cta{
      display:flex;
      align-items:center;
      gap: 10px;
    }
    .btn{
      border: 1px solid rgba(58,35,22,.18);
      background: rgba(255,255,255,.55);
      color: var(--ink);
      padding: 10px 14px;
      border-radius: 14px;
      font-weight: 700;
      font-size: 14px;
      transition: transform .18s ease, box-shadow .18s ease, background .18s ease, border-color .18s ease;
      box-shadow: 0 8px 22px rgba(29,16,8,.08);
      cursor: pointer;
      display:inline-flex;
      align-items:center;
      gap: 10px;
      user-select: none;
    }
    .btn:hover{
      transform: translateY(-1px);
      box-shadow: 0 14px 30px rgba(29,16,8,.12);
      background: rgba(255,255,255,.72);
      border-color: rgba(154,90,58,.35);
    }
    .btn-primary{
      border-color: rgba(154,90,58,.35);
      background: linear-gradient(180deg, rgba(194,123,87,.98), rgba(154,90,58,.98));
      color: #fff;
      box-shadow: 0 16px 34px rgba(154,90,58,.22);
    }
    .btn-primary:hover{
      background: linear-gradient(180deg, rgba(203,136,96,.98), rgba(154,90,58,.98));
      border-color: rgba(154,90,58,.55);
    }
    .icon-dot{
      width:10px; height:10px; border-radius: 50%;
      background: rgba(255,255,255,.92);
      box-shadow: 0 0 0 4px rgba(255,255,255,.18);
    }
    .menu-btn{
      display:none;
      border: 1px solid rgba(58,35,22,.18);
      background: rgba(255,255,255,.55);
      border-radius: 14px;
      padding: 10px 12px;
      cursor: pointer;
      box-shadow: 0 8px 22px rgba(29,16,8,.08);
      transition: transform .18s ease, background .18s ease, border-color .18s ease;
    }
    .menu-btn:hover{ transform: translateY(-1px); background: rgba(255,255,255,.72); border-color: rgba(154,90,58,.35); }
    .menu-lines{
      width: 22px; height: 14px; position: relative;
    }
    .menu-lines span{
      position:absolute; left:0; right:0;
      height: 2px; background: rgba(43,31,23,.78);
      border-radius: 999px;
      transition: transform .2s ease, top .2s ease, opacity .2s ease, background .2s ease;
    }
    .menu-lines span:nth-child(1){ top:0; }
    .menu-lines span:nth-child(2){ top:6px; }
    .menu-lines span:nth-child(3){ top:12px; }
    .menu-btn[aria-expanded="true"] .menu-lines span:nth-child(1){ top:6px; transform: rotate(45deg); }
    .menu-btn[aria-expanded="true"] .menu-lines span:nth-child(2){ opacity:0; }
    .menu-btn[aria-expanded="true"] .menu-lines span:nth-child(3){ top:6px; transform: rotate(-45deg); }

    .mobile-panel{
      display:none;
      padding: 0 0 14px 0;
    }
    .mobile-links{
      display:grid;
      gap: 8px;
      padding-top: 10px;
    }
    .mobile-links a{
      padding: 12px 12px;
      border-radius: 14px;
      border: 1px solid rgba(58,35,22,.10);
      background: rgba(255,255,255,.45);
      color: var(--ink);
      font-weight: 700;
      font-size: 14px;
    }
    .mobile-links a small{
      display:block;
      color: var(--muted);
      font-weight: 600;
      margin-top: 4px;
      font-size: 12px;
    }

    header.hero{
      padding: 26px 0 14px 0;
    }
    .hero-wrap{
      display:grid;
      grid-template-columns: 1.15fr .85fr;
      gap: 18px;
      align-items: start;
    }
    .hero-card{
      background: linear-gradient(180deg, rgba(251,247,241,.92), rgba(251,247,241,.78));
      border: 1px solid rgba(58,35,22,.10);
      border-radius: var(--radius);
      box-shadow: var(--shadow);
      padding: 22px 22px 18px 22px;
      position: relative;
      overflow:hidden;
      transform: translateY(0);
      animation: floatIn .55s ease both;
    }
    @keyframes floatIn{
      from{ opacity:0; transform: translateY(10px); }
      to{ opacity:1; transform: translateY(0); }
    }
    .hero-card:before{
      content:"";
      position:absolute;
      inset:-1px;
      background:
        radial-gradient(500px 160px at 20% 0%, rgba(194,123,87,.22), transparent 55%),
        radial-gradient(420px 180px at 85% 10%, rgba(154,90,58,.16), transparent 52%);
      pointer-events:none;
    }
    .hero-content{
      position: relative;
      z-index: 1;
    }
    .kicker{
      display:inline-flex;
      align-items:center;
      gap: 10px;
      padding: 8px 12px;
      border-radius: 999px;
      border: 1px dashed rgba(154,90,58,.35);
      background: rgba(255,255,255,.40);
      color: var(--muted);
      font-weight: 800;
      font-size: 12px;
      letter-spacing: .2px;
    }
    .kicker i{
      width: 10px; height:10px; border-radius: 50%;
      background: rgba(154,90,58,.95);
      box-shadow: 0 0 0 6px rgba(154,90,58,.14);
      display:inline-block;
    }
    h1{
      margin: 12px 0 10px 0;
      font-size: clamp(22px, 2.6vw, 30px);
      letter-spacing: -0.6px;
      line-height: 1.25;
    }
    .lead{
      margin: 0;
      color: var(--muted);
      font-size: 15px;
      line-height: 1.7;
      max-width: 62ch;
    }
    .hero-actions{
      display:flex;
      gap: 10px;
      flex-wrap: wrap;
      margin-top: 16px;
      align-items:center;
    }
    .btn-secondary{
      background: rgba(255,255,255,.58);
    }
    .hint{
      display:flex;
      align-items:center;
      gap: 10px;
      margin-top: 14px;
      padding: 12px 12px;
      border-radius: 14px;
      border: 1px solid rgba(58,35,22,.10);
      background: rgba(255,255,255,.40);
    }
    .hint svg{ flex: 0 0 auto; }
    .hint strong{
      display:block;
      font-size: 13px;
      margin-bottom: 3px;
    }
    .hint span{
      color: var(--muted);
      font-size: 12.5px;
      line-height: 1.5;
    }

    .side-card{
      background: rgba(251,247,241,.78);
      border: 1px solid rgba(58,35,22,.10);
      border-radius: var(--radius);
      box-shadow: var(--shadow2);
      padding: 18px;
      animation: floatIn2 .65s ease both;
      animation-delay: .08s;
      position: relative;
      overflow:hidden;
      transform-origin: center;
    }
    @keyframes floatIn2{
      from{ opacity:0; transform: translateY(14px) scale(.99); }
      to{ opacity:1; transform: translateY(0) scale(1); }
    }
    .side-card:after{
      content:"";
      position:absolute;
      width: 180px;
      height: 180px;
      right: -60px;
      top: -60px;
      border-radius: 50%;
      background: radial-gradient(circle at 30% 30%, rgba(194,123,87,.35), rgba(194,123,87,.04) 60%, transparent 70%);
      pointer-events:none;
    }
    .side-title{
      position: relative;
      z-index: 1;
      display:flex;
      align-items:center;
      justify-content: space-between;
      gap: 12px;
      margin-bottom: 12px;
    }
    .side-title h2{
      margin:0;
      font-size: 14.5px;
      letter-spacing: -0.2px;
    }
    .badge{
      font-size: 12px;
      font-weight: 900;
      color: rgba(43,31,23,.88);
      background: rgba(154,90,58,.12);
      border: 1px solid rgba(154,90,58,.22);
      padding: 6px 10px;
      border-radius: 999px;
      white-space: nowrap;
    }
    .side-list{
      position: relative;
      z-index: 1;
      display:grid;
      gap: 10px;
      margin:0;
      padding:0;
      list-style:none;
    }
    .side-item{
      display:flex;
      gap: 10px;
      align-items:flex-start;
      padding: 11px 12px;
      border-radius: 14px;
      border: 1px solid rgba(58,35,22,.10);
      background: rgba(255,255,255,.35);
      transition: transform .18s ease, background .18s ease, border-color .18s ease;
    }
    .side-item:hover{
      transform: translateY(-1px);
      background: rgba(255,255,255,.50);
      border-color: rgba(154,90,58,.28);
    }
    .dot{
      width: 10px; height: 10px;
      border-radius: 50%;
      background: rgba(154,90,58,.95);
      margin-top: 4px;
      flex: 0 0 auto;
      box-shadow: 0 0 0 5px rgba(154,90,58,.13);
    }
    .side-item strong{
      font-size: 13.5px;
      line-height: 1.25;
      display:block;
      margin-bottom: 3px;
    }
    .side-item span{
      color: var(--muted);
      font-size: 12.5px;
      line-height: 1.55;
    }

    main{ padding: 10px 0 26px 0; }
    section{
      margin-top: 14px;
    }
    .section-head{
      display:flex;
      align-items:flex-end;
      justify-content: space-between;
      gap: 14px;
      margin-bottom: 10px;
    }
    .section-head h2{
      margin:0;
      font-size: 18px;
      letter-spacing: -0.3px;
    }
    .section-head p{
      margin:0;
      color: var(--muted);
      font-size: 13.5px;
      line-height: 1.6;
      max-width: 52ch;
    }

    .toc{
      background: rgba(251,247,241,.70);
      border: 1px solid rgba(58,35,22,.10);
      border-radius: var(--radius);
      padding: 14px;
      box-shadow: 0 10px 24px rgba(29,16,8,.06);
    }
    .toc-grid{
      display:flex;
      flex-wrap: wrap;
      gap: 10px;
      align-items:center;
      justify-content: flex-start;
      margin-top: 10px;
    }
    .toc a{
      display:inline-flex;
      align-items:center;
      gap: 10px;
      padding: 10px 12px;
      border-radius: 14px;
      border: 1px solid rgba(58,35,22,.10);
      background: rgba(255,255,255,.40);
      color: var(--ink);
      font-weight: 800;
      font-size: 13.5px;
      transition: transform .18s ease, background .18s ease, border-color .18s ease;
    }
    .toc a:hover{
      transform: translateY(-1px);
      background: rgba(255,255,255,.58);
      border-color: rgba(154,90,58,.28);
    }
    .toc a span{
      color: var(--muted);
      font-weight: 900;
      font-size: 12px;
      background: rgba(154,90,58,.12);
      border: 1px solid rgba(154,90,58,.22);
      padding: 4px 8px;
      border-radius: 999px;
      white-space: nowrap;
    }

    .grid-2{
      display:grid;
      grid-template-columns: 1fr 1fr;
      gap: 14px;
      align-items:start;
    }
    .card{
      background: rgba(251,247,241,.72);
      border: 1px solid rgba(58,35,22,.10);
      border-radius: var(--radius);
      padding: 16px;
      box-shadow: 0 10px 24px rgba(29,16,8,.06);
    }
    .card h3{
      margin:0 0 8px 0;
      font-size: 15.5px;
      letter-spacing: -0.2px;
    }
    .card p{
      margin:0;
      color: var(--muted);
      font-size: 13.5px;
      line-height: 1.75;
    }

    .policy{
      padding: 16px;
      background:
        radial-gradient(900px 240px at 0% 0%, rgba(194,123,87,.20), transparent 55%),
        rgba(251,247,241,.74);
      border: 1px solid rgba(58,35,22,.10);
      border-radius: var(--radius);
      box-shadow: 0 10px 24px rgba(29,16,8,.07);
    }
    .policy-top{
      display:flex;
      align-items:flex-start;
      justify-content: space-between;
      gap: 14px;
      flex-wrap: wrap;
      margin-bottom: 10px;
    }
    .policy-top .sub{
      color: var(--muted);
      font-size: 13.5px;
      line-height: 1.7;
      max-width: 62ch;
      margin: 0;
    }
    .pillrow{
      display:flex;
      gap: 8px;
      flex-wrap: wrap;
      justify-content: flex-end;
      align-items:center;
    }
    .pill{
      padding: 7px 10px;
      border-radius: 999px;
      border: 1px solid rgba(154,90,58,.22);
      background: rgba(255,255,255,.42);
      font-weight: 900;
      font-size: 12px;
      color: rgba(43,31,23,.85);
      white-space: nowrap;
    }
    .table{
      width:100%;
      border-collapse: separate;
      border-spacing: 0;
      overflow:hidden;
      border-radius: 14px;
      border: 1px solid rgba(58,35,22,.10);
      background: rgba(255,255,255,.42);
    }
    .table thead th{
      text-align:left;
      font-size: 12.5px;
      color: rgba(43,31,23,.78);
      padding: 12px 12px;
      background: rgba(154,90,58,.10);
      border-bottom: 1px solid rgba(58,35,22,.10);
      letter-spacing: .2px;
    }
    .table tbody td{
      padding: 12px 12px;
      border-bottom: 1px solid rgba(58,35,22,.08);
      vertical-align: top;
      color: rgba(43,31,23,.92);
      font-size: 13.5px;
      line-height: 1.6;
    }
    .table tbody tr:last-child td{ border-bottom: none; }
    .muted{
      color: var(--muted);
      font-weight: 650;
    }
    .callout{
      margin-top: 12px;
      display:flex;
      gap: 12px;
      align-items:flex-start;
      padding: 12px 12px;
      border-radius: 14px;
      border: 1px solid rgba(58,35,22,.10);
      background: rgba(255,255,255,.40);
    }
    .callout strong{ display:block; font-size: 13.5px; margin-bottom: 4px; }
    .callout span{ color: var(--muted); font-size: 12.8px; line-height: 1.65; }
    .callout .mark{
      width: 34px; height: 34px; border-radius: 12px;
      background: rgba(154,90,58,.14);
      border: 1px solid rgba(154,90,58,.22);
      display:flex; align-items:center; justify-content:center;
      flex: 0 0 auto;
      color: rgba(154,90,58,.95);
      font-weight: 1000;
    }

    .steps{
      display:grid;
      gap: 10px;
      margin-top: 10px;
    }
    .step{
      display:flex;
      gap: 12px;
      align-items:flex-start;
      padding: 12px 12px;
      border-radius: 16px;
      border: 1px solid rgba(58,35,22,.10);
      background: rgba(255,255,255,.40);
      transition: transform .18s ease, border-color .18s ease, background .18s ease;
    }
    .step:hover{
      transform: translateY(-1px);
      background: rgba(255,255,255,.55);
      border-color: rgba(154,90,58,.28);
    }
    .step-num{
      width: 34px; height: 34px;
      border-radius: 14px;
      background: rgba(154,90,58,.14);
      border: 1px solid rgba(154,90,58,.22);
      display:flex; align-items:center; justify-content:center;
      font-weight: 1000;
      color: rgba(154,90,58,.95);
      flex: 0 0 auto;
    }
    .step h3{
      margin:0;
      font-size: 14.5px;
      letter-spacing: -0.2px;
    }
    .step p{
      margin: 4px 0 0 0;
      color: var(--muted);
      font-size: 13.2px;
      line-height: 1.7;
    }

    .faq{
      background: rgba(251,247,241,.70);
      border: 1px solid rgba(58,35,22,.10);
      border-radius: var(--radius);
      padding: 14px;
    }
    .faq-grid{
      display:grid;
      grid-template-columns: 1fr 1fr;
      gap: 12px;
      align-items:start;
    }
    details.faq-item{
      border: 1px solid rgba(58,35,22,.10);
      background: rgba(255,255,255,.40);
      border-radius: 16px;
      padding: 10px 12px;
      transition: border-color .18s ease, background .18s ease, transform .18s ease;
    }
    details.faq-item[open]{
      background: rgba(255,255,255,.58);
      border-color: rgba(154,90,58,.28);
    }
    details.faq-item summary{
      cursor:pointer;
      list-style: none;
      font-weight: 900;
      font-size: 13.8px;
      color: rgba(43,31,23,.95);
      padding-right: 18px;
      outline:none;
    }
    details.faq-item summary::-webkit-details-marker{ display:none; }
    .faq-body{
      margin-top: 8px;
      color: var(--muted);
      font-size: 13.2px;
      line-height: 1.75;
    }

    .summary{
      background: rgba(251,247,241,.72);
      border: 1px solid rgba(58,35,22,.10);
      border-radius: var(--radius);
      padding: 16px;
      box-shadow: 0 10px 24px rgba(29,16,8,.06);
    }
    .summary strong{
      display:block;
      font-size: 15.5px;
      margin-bottom: 6px;
    }
    .summary p{
      margin:0;
      color: var(--muted);
      font-size: 13.5px;
      line-height: 1.8;
    }

    .links-card{
      display:grid;
      grid-template-columns: 1fr 1fr;
      gap: 12px;
      align-items:start;
      background: rgba(251,247,241,.72);
      border: 1px solid rgba(58,35,22,.10);
      border-radius: var(--radius);
      padding: 14px;
      box-shadow: 0 10px 24px rgba(29,16,8,.06);
    }
    .link-col h3{
      margin: 0 0 10px 0;
      font-size: 15px;
      letter-spacing: -0.2px;
    }
    .link-list{
      margin:0;
      padding:0;
      list-style:none;
      display:grid;
      gap: 8px;
    }
    .link-list a{
      display:flex;
      align-items:flex-start;
      justify-content: space-between;
      gap: 12px;
      padding: 10px 12px;
      border-radius: 14px;
      border: 1px solid rgba(58,35,22,.10);
      background: rgba(255,255,255,.40);
      transition: transform .18s ease, background .18s ease, border-color .18s ease;
      font-weight: 850;
      color: rgba(43,31,23,.95);
      font-size: 13.6px;
    }
    .link-list a:hover{
      transform: translateY(-1px);
      background: rgba(255,255,255,.58);
      border-color: rgba(154,90,58,.28);
    }
    .link-list a span{
      color: var(--muted);
      font-weight: 900;
      font-size: 12px;
      white-space: nowrap;
      padding: 5px 8px;
      border-radius: 999px;
      border: 1px solid rgba(154,90,58,.22);
      background: rgba(154,90,58,.10);
      flex: 0 0 auto;
      margin-top: 1px;
    }

    footer{
      margin-top: 10px;
      background: #efe3d4;
      border-top: 1px solid rgba(58,35,22,.10);
    }
    .footer-wrap{
      padding: 18px 0;
    }
    .footer-grid{
      display:grid;
      grid-template-columns: 1.1fr .9fr;
      gap: 14px;
      align-items:start;
    }
    .footer-card{
      background: rgba(251,247,241,.55);
      border: 1px solid rgba(58,35,22,.10);
      border-radius: var(--radius);
      padding: 14px;
    }
    .footer-card h2{
      margin:0 0 10px 0;
      font-size: 15.5px;
      letter-spacing: -0.2px;
    }
    .kv{
      display:grid;
      grid-template-columns: 1fr;
      gap: 8px;
      margin:0;
      padding:0;
      list-style:none;
    }
    .kv li{
      display:flex;
      gap: 10px;
      align-items:flex-start;
      color: rgba(43,31,23,.92);
      font-size: 13.4px;
      line-height: 1.6;
    }
    .kv li svg{ flex: 0 0 auto; margin-top: 3px; }
    .kv a{
      color: rgba(43,31,23,.92);
      text-decoration: underline;
      text-decoration-color: rgba(154,90,58,.35);
      text-underline-offset: 3px;
    }
    .footer-right{
      display:grid;
      gap: 10px;
      align-content:start;
    }
    .mini-actions{
      display:flex;
      flex-wrap: wrap;
      gap: 10px;
      align-items:center;
    }
    .copyright{
      margin-top: 12px;
      color: rgba(43,31,23,.70);
      font-size: 12.5px;
      text-align: center;
      padding-bottom: 2px;
    }

    .reveal{
      opacity: 0;
      transform: translateY(10px);
      transition: opacity .4s ease, transform .4s ease;
    }
    .reveal.in{
      opacity: 1;
      transform: translateY(0);
    }

    @media (max-width: 920px){
      .hero-wrap{ grid-template-columns: 1fr; }
      .faq-grid{ grid-template-columns: 1fr; }
      .grid-2{ grid-template-columns: 1fr; }
      .links-card{ grid-template-columns: 1fr; }
      .footer-grid{ grid-template-columns: 1fr; }
      .nav-links{ display:none; }
      .menu-btn{ display:inline-flex; align-items:center; justify-content:center; }
      .mobile-panel{ display:block; }
      .mobile-panel[hidden]{ display:none; }
    }