:root{
    --red:#e0192f;
    --red-2:#f0353f;
    --red-deep:#a30e21;
    --red-soft:#fff1f2;
    --ink:#1f1418;
    --ink-2:#5f4e53;
    --ink-3:#8b767b;
    --line:#f2d9dc;
    --radius:18px;
  }
  *{box-sizing:border-box;}
  html{scroll-behavior:smooth;scroll-padding-top:88px;}
  body{
    margin:0;
    font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",Arial,sans-serif;
    color:var(--ink);
    font-size:16px;
    line-height:1.75;
    background-color:#fff8f7;
    background-image:
      radial-gradient(760px 420px at 6% -6%, rgba(255,206,211,.72) 0, rgba(255,206,211,0) 62%),
      radial-gradient(720px 420px at 98% 2%, rgba(255,220,205,.62) 0, rgba(255,220,205,0) 60%),
      linear-gradient(180deg,#fff8f7 0%,#fff5f4 50%,#fffaf9 100%);
    -webkit-font-smoothing:antialiased;
  }
  img{max-width:100%;}
  a{color:var(--red-deep);}
  h1,h2,h3,h4{margin:0;line-height:1.32;font-weight:800;letter-spacing:-.3px;}
  p{margin:0;}
  ul,ol{margin:0;padding:0;list-style:none;}
  .container{width:100%;max-width:1180px;margin:0 auto;padding:0 20px;}

  /* 顶部导航 */
  .site-header{
    position:sticky;top:0;z-index:80;
    background:rgba(255,250,250,.94);
    backdrop-filter:blur(12px);
    -webkit-backdrop-filter:blur(12px);
    border-bottom:1px solid rgba(224,25,47,.14);
  }
  .nav-wrap{position:relative;display:flex;align-items:center;justify-content:space-between;gap:16px;min-height:70px;}
  .brand{display:flex;align-items:center;gap:10px;text-decoration:none;color:var(--ink);font-weight:800;font-size:17px;flex-shrink:0;}
  .ai-page-logo{display:block;max-height:36px;width:auto;}
  .brand-text{white-space:nowrap;}
  .main-nav{display:flex;}
  .nav-links{display:flex;align-items:center;gap:0;list-style:none;margin:0;padding:0;}
  .nav-links a{display:block;padding:9px 11px;font-size:15px;font-weight:600;color:var(--ink-2);text-decoration:none;border-radius:9px;transition:color .2s,background-color .2s;}
  .nav-links a:hover{color:var(--red-deep);background:var(--red-soft);}
  .nav-actions{display:flex;align-items:center;gap:10px;flex-shrink:0;}
  .nav-toggle{display:none;width:40px;height:40px;padding:0;border:1px solid var(--line);border-radius:10px;background:#fff;flex-direction:column;align-items:center;justify-content:center;gap:4px;cursor:pointer;}
  .nav-toggle span{display:block;width:18px;height:2px;background:var(--red-deep);border-radius:2px;transition:transform .25s,opacity .25s;}
  .nav-toggle[aria-expanded="true"] span:nth-child(1){transform:translateY(6px) rotate(45deg);}
  .nav-toggle[aria-expanded="true"] span:nth-child(2){opacity:0;}
  .nav-toggle[aria-expanded="true"] span:nth-child(3){transform:translateY(-6px) rotate(-45deg);}

  /* 按钮 */
  .btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:12px 24px;border-radius:999px;font-weight:700;font-size:15px;text-decoration:none;border:1px solid transparent;cursor:pointer;line-height:1.2;transition:transform .25s,box-shadow .25s,background-color .25s,color .25s;}
  .btn-primary{background:linear-gradient(135deg,#f0353f,#c30f24);color:#fff;box-shadow:0 10px 22px rgba(214,20,42,.28);}
  .btn-primary:hover{transform:translateY(-2px);box-shadow:0 16px 30px rgba(214,20,42,.36);}
  .btn-ghost{background:#fff;color:var(--red-deep);border-color:#f5c8ce;}
  .btn-ghost:hover{transform:translateY(-2px);background:#fff6f7;box-shadow:0 10px 22px rgba(163,14,33,.12);}
  .btn-lg{padding:14px 30px;font-size:16px;}
  .btn-light{background:#fff;color:var(--red-deep);border-color:#fff;}
  .btn-light:hover{transform:translateY(-2px);box-shadow:0 14px 26px rgba(0,0,0,.22);}
  .btn-outline-light{background:transparent;color:#fff;border-color:rgba(255,255,255,.6);}
  .btn-outline-light:hover{background:rgba(255,255,255,.14);transform:translateY(-2px);}
  .nav-cta{padding:10px 18px;font-size:14px;}

  /* 首屏 */
  .hero{position:relative;overflow:hidden;padding:76px 0 68px;text-align:center;}
  .hero::before{content:"";position:absolute;top:-200px;left:50%;transform:translateX(-50%);width:920px;height:540px;background:radial-gradient(closest-side,rgba(224,25,47,.2),rgba(224,25,47,0));pointer-events:none;}
  .hero::after{content:"";position:absolute;inset:0;background-image:linear-gradient(rgba(224,25,47,.07) 1px,transparent 1px),linear-gradient(90deg,rgba(224,25,47,.07) 1px,transparent 1px);background-size:48px 48px;-webkit-mask-image:radial-gradient(62% 62% at 50% 32%,#000 0%,transparent 100%);mask-image:radial-gradient(62% 62% at 50% 32%,#000 0%,transparent 100%);pointer-events:none;}
  .hero-inner{position:relative;z-index:1;}
  .hero-badge{display:inline-block;padding:6px 16px;border-radius:999px;background:rgba(255,255,255,.86);border:1px solid #f6c9cf;color:var(--red-deep);font-size:13px;font-weight:700;letter-spacing:.6px;margin-bottom:20px;}
  .hero h1{font-size:clamp(30px,4.8vw,48px);letter-spacing:-1px;max-width:900px;margin:0 auto 18px;}
  .hero-lead{max-width:760px;margin:0 auto 30px;color:var(--ink-2);font-size:clamp(15px,1.6vw,17px);}
  .hero-actions{display:flex;flex-wrap:wrap;justify-content:center;gap:14px;margin-bottom:38px;}
  .hero-stats{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:14px;max-width:820px;margin:0 auto;}
  .hero-stats li{background:rgba(255,255,255,.88);border:1px solid var(--line);border-radius:14px;padding:16px 12px;box-shadow:0 8px 20px rgba(163,14,33,.06);}
  .hero-stats strong{display:block;font-size:22px;color:var(--red-deep);letter-spacing:-.5px;}
  .hero-stats span{display:block;font-size:13px;color:var(--ink-2);margin-top:2px;}
  @keyframes rise{from{opacity:0;transform:translateY(18px);}to{opacity:1;transform:none;}}
  .hero-badge,.hero h1,.hero-lead,.hero-actions,.hero-stats{animation:rise .75s cubic-bezier(.22,.7,.3,1) both;}
  .hero h1{animation-delay:.06s;}
  .hero-lead{animation-delay:.14s;}
  .hero-actions{animation-delay:.22s;}
  .hero-stats{animation-delay:.3s;}

  /* 通用区块 */
  .section{padding:46px 0;position:relative;}
  .sec-head{max-width:780px;margin-bottom:28px;}
  .sec-tag{display:inline-block;padding:4px 12px;border-radius:999px;background:#ffe9eb;color:#b90f22;font-size:13px;font-weight:700;letter-spacing:.5px;margin-bottom:12px;}
  .sec-tag.light{background:rgba(255,255,255,.2);color:#fff;}
  .section h2{font-size:clamp(23px,3vw,33px);margin-bottom:12px;}
  .sec-desc{color:var(--ink-2);font-size:16px;}
  .card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:24px;box-shadow:0 6px 20px rgba(163,14,33,.05);transition:transform .3s,box-shadow .3s,border-color .3s;}
  .card:hover{transform:translateY(-4px);box-shadow:0 18px 34px rgba(163,14,33,.12);border-color:#f3c1c8;}
  .card h3{font-size:17px;margin-bottom:8px;}
  .card p{font-size:14.5px;color:var(--ink-2);}
  .card .dot-line{display:block;width:28px;height:3px;border-radius:3px;background:linear-gradient(90deg,#f0353f,#c30f24);margin-bottom:14px;}
  .grid{display:grid;gap:18px;}
  .grid-2{grid-template-columns:repeat(2,minmax(0,1fr));}
  .grid-3{grid-template-columns:repeat(3,minmax(0,1fr));}
  .grid-4{grid-template-columns:repeat(4,minmax(0,1fr));}

  /* AIGC 服务 */
  .chips{display:flex;flex-wrap:wrap;gap:10px;margin-top:24px;}
  .chip{display:inline-block;padding:6px 14px;border-radius:999px;background:#fff;border:1px solid #f4d2d6;color:var(--red-deep);font-size:14px;font-weight:600;transition:background-color .2s,transform .2s;}
  .chip:hover{background:#fff2f3;transform:translateY(-2px);}
  .model-wall{background:rgba(255,255,255,.72);border:1px solid var(--line);border-radius:var(--radius);padding:24px;margin-top:22px;}
  .model-wall h3{font-size:16px;margin-bottom:6px;}
  .model-wall p{font-size:14px;color:var(--ink-2);}

  /* 一站式制作 */
  .scene-card h3{display:flex;align-items:center;gap:8px;font-size:16.5px;}
  .scene-card h3::before{content:"";width:8px;height:8px;border-radius:50%;background:var(--red);flex-shrink:0;}

  /* 流程 */
  .steps{display:grid;grid-template-columns:repeat(5,minmax(0,1fr));gap:16px;}
  .step{background:#fff;border:1px solid var(--line);border-radius:14px;padding:20px 18px;transition:transform .3s,box-shadow .3s;}
  .step:hover{transform:translateY(-4px);box-shadow:0 14px 28px rgba(163,14,33,.1);}
  .step-no{display:inline-block;font-size:13px;font-weight:800;color:#fff;background:linear-gradient(135deg,#f0353f,#c30f24);padding:2px 12px;border-radius:999px;margin-bottom:12px;letter-spacing:1px;}
  .step h3{font-size:16px;margin-bottom:8px;}
  .step p{font-size:14px;color:var(--ink-2);}

  /* 案例 */
  .case-card{margin:0;background:#fff;border:1px solid var(--line);border-radius:16px;padding:14px;transition:transform .3s,box-shadow .3s;}
  .case-card:hover{transform:translateY(-4px);box-shadow:0 16px 30px rgba(163,14,33,.12);}
  .case-media{aspect-ratio:4/3;background:#fff3f4;border-radius:12px;overflow:hidden;display:flex;align-items:center;justify-content:center;}
  .case-media img{width:100%;height:100%;object-fit:contain;display:block;}
  .case-card figcaption{margin-top:12px;font-size:14px;font-weight:700;color:var(--ink);text-align:center;}

  /* 对比评测 */
  .review-top{display:grid;grid-template-columns:minmax(0,.9fr) minmax(0,1.1fr);gap:18px;margin-bottom:22px;}
  .score-card{background:linear-gradient(150deg,#fff5f5,#ffe7ea);border:1px solid #f7c6cd;border-radius:var(--radius);padding:28px;text-align:center;}
  .score-num{font-size:46px;font-weight:800;color:var(--red-deep);letter-spacing:-2px;line-height:1.1;}
  .score-num span{font-size:16px;color:var(--ink-2);font-weight:700;margin-left:4px;letter-spacing:0;}
  .score-stars{color:#e0192f;font-size:20px;letter-spacing:4px;margin:8px 0 6px;}
  .score-label{font-size:14.5px;color:var(--ink-2);font-weight:600;}
  .review-text{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:26px;}
  .review-text h3{font-size:18px;margin-bottom:10px;}
  .review-text p{font-size:14.5px;color:var(--ink-2);margin-bottom:14px;}
  .review-points{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:8px 14px;}
  .review-points li{font-size:14px;color:var(--ink-2);padding-left:16px;position:relative;}
  .review-points li::before{content:"";position:absolute;left:0;top:9px;width:6px;height:6px;border-radius:50%;background:var(--red);}

  /* 表格 */
  .table-wrap{overflow-x:auto;border:1px solid var(--line);border-radius:16px;background:#fff;-webkit-overflow-scrolling:touch;}
  table{border-collapse:collapse;width:100%;min-width:720px;}
  caption{text-align:left;padding:16px 18px 0;font-size:14px;color:var(--ink-3);}
  th,td{padding:13px 16px;font-size:14.5px;text-align:left;border-bottom:1px solid #f7e6e8;}
  thead th{background:#fff3f4;color:var(--red-deep);font-weight:800;font-size:14px;white-space:nowrap;}
  tbody th{font-weight:700;color:var(--ink);background:#fffafa;white-space:nowrap;}
  tbody tr:last-child th,tbody tr:last-child td{border-bottom:none;}
  tbody td{color:var(--ink-2);}
  tbody td:first-of-type{color:var(--red-deep);font-weight:700;}

  /* 表单 */
  .match-grid{display:grid;grid-template-columns:minmax(0,1.35fr) minmax(0,.65fr);gap:18px;align-items:start;}
  .form-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:26px;box-shadow:0 8px 24px rgba(163,14,33,.06);}
  .form-row{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:16px;}
  .form-field{display:flex;flex-direction:column;margin-bottom:16px;}
  .form-field label{font-size:14px;font-weight:700;margin-bottom:7px;color:var(--ink);}
  .form-field input,.form-field select,.form-field textarea{
    width:100%;padding:11px 14px;border:1px solid #f0d3d7;border-radius:10px;font-size:15px;font-family:inherit;color:var(--ink);background:#fffdfd;transition:border-color .2s,box-shadow .2s;
  }
  .form-field textarea{min-height:110px;resize:vertical;}
  .form-field input:focus,.form-field select:focus,.form-field textarea:focus{outline:none;border-color:#e0192f;box-shadow:0 0 0 3px rgba(224,25,47,.12);}
  .form-tip{font-size:13px;color:var(--ink-3);margin-top:10px;}
  .match-side{display:flex;flex-direction:column;gap:16px;}
  .match-side .card{padding:20px;}
  .match-side h3{font-size:16px;margin-bottom:10px;}
  .side-list li{font-size:14px;color:var(--ink-2);padding-left:18px;position:relative;margin-bottom:8px;}
  .side-list li::before{content:"";position:absolute;left:0;top:9px;width:7px;height:7px;border-radius:50%;background:linear-gradient(135deg,#f0353f,#c30f24);}
  .side-list li:last-child{margin-bottom:0;}

  /* 加盟 */
  .join-panel{background:linear-gradient(140deg,#8d1020 0%,#c1132a 55%,#e0192f 100%);border-radius:22px;padding:38px 34px;color:#fff;display:grid;grid-template-columns:minmax(0,1.4fr) minmax(0,.6fr);gap:24px;align-items:center;box-shadow:0 18px 40px rgba(163,14,33,.24);}
  .join-panel h2{color:#fff;margin-bottom:12px;font-size:clamp(22px,2.8vw,30px);}
  .join-panel p{color:#ffe4e7;font-size:15px;}
  .join-actions{display:flex;flex-direction:column;gap:12px;}

  /* FAQ */
  .faq-item{background:#fff;border:1px solid var(--line);border-radius:14px;padding:0 18px;margin-bottom:12px;transition:box-shadow .3s,border-color .3s;}
  .faq-item:hover{border-color:#f3c1c8;box-shadow:0 10px 22px rgba(163,14,33,.08);}
  .faq-item summary{list-style:none;cursor:pointer;padding:16px 30px 16px 0;font-weight:700;font-size:15.5px;color:var(--ink);position:relative;}
  .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:var(--red);line-height:1;}
  .faq-item[open] summary::after{content:"−";}
  .faq-item p{padding:0 0 16px;font-size:14.5px;color:var(--ink-2);}

  /* AI百科 */
  .wiki-box{background:rgba(255,255,255,.78);border:1px solid var(--line);border-radius:var(--radius);padding:26px;}

  /* 资讯 */
  .news-list{display:grid;gap:12px;}
  .news-item{display:flex;align-items:center;justify-content:space-between;gap:16px;background:#fff;border:1px solid var(--line);border-radius:14px;padding:16px 20px;text-decoration:none;color:var(--ink);transition:transform .25s,box-shadow .25s,border-color .25s;}
  .news-item:hover{transform:translateX(4px);box-shadow:0 12px 24px rgba(163,14,33,.1);border-color:#f3c1c8;}
  .news-item span{font-size:15px;font-weight:700;}
  .news-item em{font-style:normal;font-size:13px;color:var(--red-deep);white-space:nowrap;}

  /* 评论 */
  .voice-card{display:flex;flex-direction:column;justify-content:space-between;gap:16px;}
  .voice-text{font-size:14.5px;color:var(--ink-2);}
  .voice-role{font-size:13px;font-weight:700;color:var(--red-deep);background:#fff2f3;border-radius:999px;padding:4px 12px;display:inline-block;}

  /* 联系我们 */
  .contact-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:18px;}
  .contact-card{background:#fff;border:1px solid var(--line);border-radius:16px;padding:22px;transition:transform .3s,box-shadow .3s;}
  .contact-card:hover{transform:translateY(-4px);box-shadow:0 16px 30px rgba(163,14,33,.1);}
  .contact-card h3{font-size:15px;color:var(--ink-3);font-weight:700;margin-bottom:8px;letter-spacing:.5px;}
  .contact-card p,.contact-card a{font-size:15.5px;font-weight:700;color:var(--ink);text-decoration:none;word-break:break-all;}
  .contact-card a:hover{color:var(--red-deep);}
  .qr-card{display:flex;align-items:center;gap:18px;background:#fff;border:1px solid var(--line);border-radius:16px;padding:20px;margin-top:18px;}
  .qr-card img{width:132px;max-width:100%;height:auto;border-radius:10px;display:block;}
  .qr-card h3{font-size:16px;margin-bottom:6px;}
  .qr-card p{font-size:14px;color:var(--ink-2);}

  /* 页脚 */
  .site-footer{background:linear-gradient(140deg,#5a0c17 0%,#2a050b 100%);color:#f4dfe2;padding:38px 0 22px;margin-top:26px;}
  .footer-top{display:grid;grid-template-columns:minmax(0,.8fr) minmax(0,1.2fr);gap:28px;}
  .footer-name{font-size:19px;font-weight:800;color:#fff;margin-bottom:8px;letter-spacing:.5px;}
  .footer-desc{font-size:14px;color:#f0cdd2;}
  .footer-line{margin-top:12px;font-size:14px;color:#f0cdd2;}
  .footer-line a{color:#ffd3d8;text-decoration:none;font-weight:700;margin:0 2px;}
  .footer-line a:hover{text-decoration:underline;}
  .footer-title{font-size:14px;font-weight:800;color:#fff;margin-bottom:12px;letter-spacing:.5px;}
  .friend-links{display:flex;flex-wrap:wrap;gap:8px 18px;}
  .friend-links a{font-size:13.5px;color:#ffd3d8;text-decoration:none;}
  .friend-links a:hover{color:#fff;text-decoration:underline;}
  .footer-bottom{margin-top:26px;padding-top:16px;border-top:1px solid rgba(255,255,255,.16);font-size:13px;color:#e8c2c8;text-align:center;}

  /* 浮动组件 */
  .floating{position:fixed;right:16px;bottom:20px;z-index:95;display:flex;flex-direction:column;align-items:flex-end;gap:10px;}
  .float-actions{display:flex;flex-direction:column;align-items:flex-end;gap:8px;}
  .float-btn{display:inline-flex;align-items:center;gap:6px;padding:10px 16px;border-radius:999px;border:1px solid rgba(224,25,47,.24);background:#fff;color:var(--red-deep);font-weight:700;font-size:14px;cursor:pointer;box-shadow:0 10px 22px rgba(163,14,33,.16);transition:transform .2s,box-shadow .2s;}
  .float-btn:hover{transform:translateY(-2px);box-shadow:0 14px 26px rgba(163,14,33,.22);}
  .float-panel{display:none;width:236px;background:#fff;border:1px solid var(--line);border-radius:14px;padding:14px;box-shadow:0 18px 36px rgba(163,14,33,.18);}
  .float-panel.open{display:block;}
  .float-title{font-size:14px;font-weight:800;color:var(--ink);text-align:center;margin-bottom:8px;}
  .float-qr{display:block;width:100%;max-width:180px;height:auto;margin:0 auto 8px;border-radius:8px;}
  .float-note{font-size:12.5px;color:var(--ink-2);text-align:center;line-height:1.6;}

  /* 滚动渐入 */
  body.js .reveal{opacity:0;transform:translateY(20px);transition:opacity .65s ease,transform .65s ease;}
  body.js .reveal.is-visible{opacity:1;transform:none;}

  /* 响应式 */
  @media (max-width:980px){
    .nav-toggle{display:flex;}
    .nav-links{
      display:none;position:absolute;left:0;right:0;top:100%;flex-direction:column;align-items:stretch;gap:0;
      background:#fff;border:1px solid var(--line);border-radius:0 0 16px 16px;padding:8px 12px 14px;
      box-shadow:0 18px 30px rgba(163,14,33,.12);
    }
    .nav-links.open{display:flex;}
    .nav-links a{padding:12px 10px;border-bottom:1px solid #f9e8ea;border-radius:0;}
    .nav-links li:last-child a{border-bottom:none;}
    .grid-3,.grid-4{grid-template-columns:repeat(2,minmax(0,1fr));}
    .steps{grid-template-columns:repeat(2,minmax(0,1fr));}
    .review-top{grid-template-columns:1fr;}
    .match-grid{grid-template-columns:1fr;}
    .contact-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
    .join-panel{grid-template-columns:1fr;padding:30px 24px;}
    .footer-top{grid-template-columns:1fr;}
  }
  @media (max-width:620px){
    .section{padding:38px 0;}
    .hero{padding:56px 0 48px;}
    .grid-2,.grid-3,.grid-4{grid-template-columns:1fr;}
    .steps{grid-template-columns:1fr;}
    .contact-grid{grid-template-columns:1fr;}
    .hero-stats{grid-template-columns:1fr;max-width:420px;}
    .form-row{grid-template-columns:1fr;}
    .review-points{grid-template-columns:1fr;}
    .qr-card{flex-direction:column;text-align:center;align-items:center;}
    .news-item{align-items:flex-start;flex-direction:column;gap:6px;}
    .brand-text{font-size:15px;}
  }
  @media (max-width:430px){
    .nav-cta{display:none;}
    .float-panel{width:206px;}
  }
  @media (prefers-reduced-motion: reduce){
    *,*::before,*::after{animation:none !important;transition:none !important;}
    body.js .reveal{opacity:1;transform:none;}
  }