:root{
    --bg:#f4f1ea; --card:#fffdf8; --ink:#201f1b; --muted:#8d877a;
    --green:#1f4a3d; --green2:#163a30; --green-soft:#edf2ef; --gold:#a8742f;
    --line:#e7e1d4; --shadow:0 14px 40px rgba(40,35,22,.10);
  }
  *{box-sizing:border-box;}
  html,body{margin:0;}
  body{
    font-family:system-ui,-apple-system,"PingFang SC","Microsoft YaHei",sans-serif;
    color:var(--ink); line-height:1.5; padding:28px 16px 48px; min-height:100vh;
    background:
      radial-gradient(120% 80% at 50% -10%, #fbf9f3 0%, rgba(251,249,243,0) 55%),
      radial-gradient(90% 60% at 110% 0%, #eef3ef 0%, rgba(238,243,239,0) 50%),
      var(--bg);
  }
  .wrap{max-width:460px;margin:0 auto;}
  .serif{font-family:"Noto Serif SC","Fraunces",serif;}

  /* 品牌头 */
  .brand{text-align:center;margin-bottom:22px;}
  .brand .kicker{font-family:"Fraunces",serif;font-style:italic;font-size:13px;letter-spacing:.06em;color:var(--gold);margin-bottom:6px;}
  .brand h1{font-family:"Noto Serif SC",serif;font-weight:900;font-size:30px;letter-spacing:.04em;margin:0;color:var(--green2);}
  .brand p{font-size:13px;color:var(--muted);margin:8px 0 0;}

  /* 用途切换 */
  .seg{display:flex;background:#efeadf;border:1px solid var(--line);border-radius:999px;padding:4px;margin:0 auto 18px;}
  .seg button{flex:1;border:none;background:transparent;padding:11px;border-radius:999px;font-size:14px;font-weight:600;
    color:var(--muted);cursor:pointer;transition:.22s;font-family:inherit;}
  .seg button.on{background:var(--green);color:#fdfbf4;box-shadow:0 4px 12px rgba(31,74,61,.28);}

  .card{background:var(--card);border:1px solid var(--line);border-radius:20px;padding:22px;box-shadow:var(--shadow);}

  .step{margin:0 0 22px;transition:opacity .3s;}
  .step.locked{opacity:.4;pointer-events:none;}
  .step-h{display:flex;align-items:baseline;gap:9px;margin-bottom:11px;}
  .step-h .no{font-family:"Fraunces",serif;font-weight:600;font-size:15px;color:var(--gold);min-width:18px;}
  .step-h .t{font-size:14px;font-weight:600;color:var(--ink);}
  .step-h .hint{font-size:11px;color:var(--muted);margin-left:auto;}

  /* 上传 */
  #drop{border:1.5px dashed #cdc6b6;border-radius:15px;padding:30px 18px;text-align:center;color:var(--muted);
    background:#fbf9f2;cursor:pointer;transition:.2s;}
  #drop:hover{border-color:var(--green);background:#f5f8f5;}
  #drop.drag{border-color:var(--green);background:var(--green-soft);}
  #drop.has{border-style:solid;border-color:var(--green);background:#f5f8f5;color:var(--green);}
  #drop .big{font-size:15px;font-weight:600;color:var(--ink);}
  #drop.has .big{color:var(--green);}
  #drop .sub2{display:block;font-size:11.5px;color:var(--muted);margin-top:7px;}
  #drop .ico{font-size:26px;display:block;margin-bottom:8px;filter:grayscale(.2);}
  #drop #preview{display:none;max-width:150px;max-height:150px;border-radius:12px;margin:0 auto 10px;object-fit:cover;box-shadow:0 2px 12px rgba(40,35,22,.14);}
  #drop.has .ico{display:none;}
  #file{display:none;}

  /* 选项网格 */
  .grid2{display:grid;grid-template-columns:1fr 1fr;gap:9px;}
  .grid2 button{padding:12px 11px;border:1.5px solid var(--line);border-radius:12px;background:#fff;
    font-size:13px;color:var(--ink);cursor:pointer;transition:.16s;text-align:left;line-height:1.35;font-family:inherit;}
  .grid2 button small{display:block;color:var(--muted);font-size:11px;margin-top:3px;font-weight:400;}
  .grid2 button.on{border-color:var(--green);background:var(--green-soft);color:var(--green);box-shadow:0 2px 10px rgba(31,74,61,.12);}
  .grid2 button.on small{color:var(--green);}

  .colors{display:flex;gap:14px;align-items:center;}
  .colors button{width:38px;height:38px;padding:0;border-radius:50%;border:1px solid var(--line);cursor:pointer;transition:.16s;position:relative;}
  .colors button.on{outline:2.5px solid var(--green);outline-offset:3px;transform:scale(1.06);}

  /* 生成按钮 */
  .gen{width:100%;margin-top:4px;padding:16px;border:none;border-radius:14px;font-size:16px;font-weight:700;
    letter-spacing:.04em;color:#fdfbf4;background:linear-gradient(180deg,var(--green),var(--green2));cursor:pointer;
    transition:.2s;box-shadow:0 10px 24px rgba(31,74,61,.30);font-family:inherit;}
  .gen:hover:not(:disabled){transform:translateY(-2px);box-shadow:0 14px 30px rgba(31,74,61,.4);}
  .gen:disabled{background:#9fb3aa;cursor:wait;box-shadow:none;transform:none;}

  .status{text-align:center;font-size:13px;color:var(--green);margin-top:14px;min-height:18px;}
  .spinner{display:inline-block;width:13px;height:13px;border:2px solid #cfe0d8;border-top-color:var(--green);
    border-radius:50%;animation:spin .7s linear infinite;vertical-align:-2px;margin-right:7px;}
  @keyframes spin{to{transform:rotate(360deg);}}

  /* 结果 */
  .result{margin-top:22px;display:none;gap:18px;justify-content:center;}
  .result.show{display:flex;animation:reveal .6s cubic-bezier(.2,.7,.2,1);}
  @keyframes reveal{from{opacity:0;transform:translateY(16px) scale(.98);filter:blur(4px);}to{opacity:1;transform:none;filter:none;}}
  .result figure{margin:0;text-align:center;}
  .result figcaption{font-size:11.5px;color:var(--muted);margin-top:9px;letter-spacing:.04em;}
  .result canvas{border-radius:4px;background:#fff;padding:6px;border:1px solid var(--line);
    box-shadow:0 10px 28px rgba(0,0,0,.16);}

  /* 解锁 */
  .unlock{margin-top:20px;display:none;}
  .unlock.show{display:block;}
  .unlock-btn{width:100%;padding:14px;border:none;border-radius:13px;font-size:15px;font-weight:700;color:#fff;
    background:linear-gradient(95deg,var(--gold),#8a5a22);cursor:pointer;box-shadow:0 8px 20px rgba(168,116,47,.32);font-family:inherit;letter-spacing:.03em;}
  .unlock .tip{text-align:center;font-size:11px;color:var(--muted);margin-top:8px;}
  .dl{display:none;gap:10px;}
  .dl.show{display:flex;flex-wrap:wrap;}
  .dl button{flex:1;padding:13px;border:1.5px solid var(--green);border-radius:13px;background:var(--green-soft);color:var(--green);font-weight:600;cursor:pointer;font-family:inherit;font-size:13.5px;}

  .foot{text-align:center;font-size:11px;color:var(--muted);margin-top:18px;line-height:1.6;}

  /* 弹窗 */
  .modal{position:fixed;inset:0;background:rgba(28,26,20,.5);backdrop-filter:blur(3px);display:none;align-items:center;justify-content:center;padding:20px;z-index:10;}
  .modal.show{display:flex;}
  .modal-card{background:var(--card);border-radius:20px;padding:28px;max-width:320px;text-align:center;box-shadow:var(--shadow);animation:reveal .35s ease;}
  .modal-card h3{font-family:"Noto Serif SC",serif;font-weight:700;margin:0 0 6px;font-size:19px;color:var(--green2);}
  .modal-card .price{font-family:"Fraunces",serif;font-size:13px;color:var(--gold);margin-bottom:16px;}
  .qr{width:200px;min-height:200px;margin:0 auto 10px;border-radius:10px;background:#fff;border:6px solid #fff;box-shadow:0 0 0 1px var(--line);display:flex;align-items:center;justify-content:center;}
  .qr img{display:block;width:188px;height:188px;}
  .modal-card p{color:var(--muted);font-size:12.5px;margin:0 0 18px;}
  .pay{width:100%;padding:13px;border:none;border-radius:12px;background:var(--green);color:#fff;font-weight:600;font-size:15px;cursor:pointer;font-family:inherit;}
  .pay+.pay{margin-top:9px;}
  .pay-wx{background:#07c160;}
  .pay-tip{font-size:12.5px;color:var(--muted);margin:4px 0 12px;}
  .pay-tip b{color:var(--green2);}
  .pay-status{font-size:13px;color:var(--gold);margin:12px 0 8px;font-weight:600;min-height:18px;}
  .redeem-in{width:100%;padding:11px;border:1px solid #d8cdb5;border-radius:10px;font-size:16px;text-align:center;letter-spacing:2px;margin-bottom:9px;box-sizing:border-box;font-family:inherit;text-transform:uppercase;}
  .link{background:none;border:none;color:var(--muted);margin-top:10px;cursor:pointer;font-size:12.5px;font-family:inherit;}

  /* ===================== 商业落地页 · 营销模块 ===================== */
  .sec{margin:40px 0;}
  .sec-k{text-align:center;font-family:"Fraunces",serif;font-style:italic;font-size:12px;letter-spacing:.08em;color:var(--gold);margin-bottom:5px;}
  .sec-t{text-align:center;font-family:"Noto Serif SC",serif;font-weight:900;font-size:22px;color:var(--green2);margin:0 0 4px;line-height:1.3;}
  .sec-d{text-align:center;font-size:13px;color:var(--muted);margin:0 auto 20px;max-width:340px;line-height:1.5;}

  /* Hero */
  .hero{text-align:center;padding-top:4px;margin-bottom:8px;}
  .hero .kicker{font-family:"Fraunces",serif;font-style:italic;font-size:13px;letter-spacing:.06em;color:var(--gold);margin-bottom:10px;}
  .hero h1{font-family:"Noto Serif SC",serif;font-weight:900;font-size:29px;line-height:1.32;letter-spacing:.01em;margin:0 0 13px;color:var(--green2);}
  .hero h1 em{font-style:normal;color:var(--gold);}
  .hero .lead{font-size:14.5px;color:#6b6457;line-height:1.65;margin:0 0 18px;}
  .hero-img{border-radius:16px;overflow:hidden;border:1px solid var(--line);box-shadow:var(--shadow);margin-bottom:18px;background:#fff;}
  .hero-img img{width:100%;display:block;}
  .cta{display:block;width:100%;padding:16px;border:none;border-radius:14px;font-size:16px;font-weight:700;color:#fdfbf4;text-decoration:none;
    background:linear-gradient(180deg,var(--green),var(--green2));box-shadow:0 10px 24px rgba(31,74,61,.30);cursor:pointer;font-family:inherit;text-align:center;transition:.2s;}
  .cta:hover{transform:translateY(-2px);box-shadow:0 14px 30px rgba(31,74,61,.4);}
  .cta-sub{font-size:12px;color:var(--muted);margin-top:10px;}
  .trust-row{display:flex;justify-content:center;gap:20px;flex-wrap:wrap;margin-top:18px;font-size:12px;color:var(--muted);}
  .trust-row div{text-align:center;}
  .trust-row b{display:block;color:var(--green);font-family:"Noto Serif SC",serif;font-size:17px;}

  /* 样张墙 */
  .shots{display:grid;grid-template-columns:1fr 1fr;gap:12px;}
  .shot{border-radius:13px;overflow:hidden;border:1px solid var(--line);background:#fff;box-shadow:0 6px 16px rgba(40,35,22,.08);}
  .shot img{width:100%;aspect-ratio:3/4;object-fit:cover;object-position:center top;display:block;}
  .shot .cap{padding:9px;text-align:center;font-size:12.5px;font-weight:700;color:var(--green);}
  .shot .cap small{display:block;color:var(--muted);font-weight:400;font-size:11px;margin-top:1px;}
  .shot.wide{grid-column:1/3;}
  .shot.wide img{aspect-ratio:auto;height:auto;object-fit:contain;}

  /* 三步 */
  .steps3{display:flex;flex-direction:column;gap:11px;}
  .step3{display:flex;gap:15px;align-items:center;background:var(--card);border:1px solid var(--line);border-radius:14px;padding:15px 17px;box-shadow:0 4px 12px rgba(40,35,22,.05);}
  .step3 .n{font-family:"Fraunces",serif;font-size:28px;font-weight:600;color:var(--gold);min-width:32px;line-height:1;}
  .step3 b{display:block;color:var(--green2);font-size:15px;font-family:"Noto Serif SC",serif;margin-bottom:3px;}
  .step3 span{color:var(--muted);font-size:12.5px;line-height:1.45;}

  /* 好评 */
  .reviews{display:flex;flex-direction:column;gap:11px;}
  .review{background:var(--card);border:1px solid var(--line);border-radius:14px;padding:15px 17px;box-shadow:0 4px 12px rgba(40,35,22,.05);}
  .review .stars{color:#e0a73a;font-size:13px;letter-spacing:2px;margin-bottom:7px;}
  .review .txt{font-size:13.5px;line-height:1.6;color:var(--ink);}
  .review .who{font-size:12px;color:var(--muted);margin-top:9px;}

  /* 价格 */
  .plans{display:flex;flex-direction:column;gap:13px;}
  .plan{border:1.5px solid var(--line);border-radius:16px;padding:19px;background:var(--card);box-shadow:0 4px 12px rgba(40,35,22,.05);position:relative;}
  .plan.hot{border-color:var(--green);box-shadow:0 12px 28px rgba(31,74,61,.15);}
  .plan .badge{position:absolute;top:-11px;left:50%;transform:translateX(-50%);background:var(--gold);color:#fff;font-size:11px;font-weight:700;padding:4px 14px;border-radius:999px;white-space:nowrap;}
  .plan .pn{font-family:"Noto Serif SC",serif;font-weight:700;font-size:17px;color:var(--green2);}
  .plan .pp{font-family:"Fraunces",serif;font-size:32px;font-weight:600;color:var(--gold);margin:7px 0 4px;}
  .plan .pp small{font-size:14px;color:var(--muted);}
  .plan ul{list-style:none;padding:0;margin:10px 0 0;font-size:13px;color:var(--ink);}
  .plan li{padding:4px 0 4px 21px;position:relative;line-height:1.4;}
  .plan li:before{content:"✓";position:absolute;left:0;color:var(--green);font-weight:700;}

  /* 隐私 */
  .privacy{background:var(--green-soft);border:1px solid #d6e3db;border-radius:16px;padding:20px;text-align:center;}
  .privacy .pi{font-size:25px;}
  .privacy b{display:block;color:var(--green2);font-family:"Noto Serif SC",serif;font-size:15.5px;margin:7px 0 5px;}
  .privacy span{font-size:12.5px;color:#5f6b63;line-height:1.6;}

  /* FAQ */
  .faq details{border-bottom:1px solid var(--line);padding:15px 2px;}
  .faq summary{font-size:14px;font-weight:600;color:var(--green2);cursor:pointer;list-style:none;display:flex;justify-content:space-between;align-items:center;gap:10px;}
  .faq summary::-webkit-details-marker{display:none;}
  .faq summary:after{content:"+";color:var(--gold);font-size:20px;font-weight:400;line-height:1;}
  .faq details[open] summary:after{content:"–";}
  .faq p{font-size:13px;color:var(--muted);line-height:1.65;margin:11px 0 0;}

  /* 工具区锚 */
  .tool-anchor{margin-top:42px;}
  .tool-anchor .sec-t{font-size:24px;}

  /* 页脚 */
  .site-foot{margin-top:44px;padding-top:26px;border-top:1px solid var(--line);text-align:center;}
  .site-foot .fb{font-family:"Noto Serif SC",serif;font-weight:700;color:var(--green2);font-size:17px;letter-spacing:.04em;}
  .site-foot .fbsub{font-size:12px;color:var(--muted);margin-top:4px;}
  .site-foot .fl{margin:14px 0;font-size:12.5px;}
  .site-foot .fl a{color:var(--muted);text-decoration:none;margin:0 9px;}
  .site-foot .fc{display:inline-block;font-size:12.5px;color:var(--green);margin:8px 0;background:var(--green-soft);border:1px solid #d6e3db;border-radius:999px;padding:7px 16px;}
  .site-foot .fcopy{font-size:11px;color:var(--muted);line-height:1.7;margin-top:14px;}

  /* 底部 sticky CTA */
  .sticky-cta{position:fixed;left:0;right:0;bottom:0;z-index:8;padding:10px 16px calc(10px + env(safe-area-inset-bottom));
    background:rgba(244,241,234,.92);backdrop-filter:blur(8px);border-top:1px solid var(--line);box-shadow:0 -4px 20px rgba(40,35,22,.08);transition:transform .32s cubic-bezier(.2,.7,.2,1);}
  .sticky-cta.hide{transform:translateY(130%);}
  .sticky-cta a{display:block;max-width:460px;margin:0 auto;padding:14px;border-radius:12px;
    background:linear-gradient(180deg,var(--green),var(--green2));color:#fdfbf4;text-align:center;font-weight:700;font-size:15px;text-decoration:none;box-shadow:0 6px 16px rgba(31,74,61,.3);}
  /* 模块间轻 CTA */
  .mini-cta{display:block;text-align:center;margin:16px auto 0;color:var(--green);font-weight:700;font-size:14px;text-decoration:none;border:1.5px solid var(--green-soft);background:var(--green-soft);border-radius:12px;padding:12px;}