:root{
    --primary:#1a5c3a;        /* 本草绿 */
    --primary-dark:#0e3d24;
    --primary-light:#e8f3ec;
    --accent:#c8a24a;         /* 本草金 */
    --accent-dark:#a8842f;
    --ink:#22292a;
    --ink-2:#5a6666;
    --bg:#fafaf7;
    --white:#ffffff;
    --radius:16px;
    --shadow:0 10px 30px rgba(20,60,40,.08);
    --maxw:1480px;
  }
  *{margin:0;padding:0;box-sizing:border-box}
  html{scroll-behavior:smooth}
  body{
    font-family:"PingFang SC","Microsoft YaHei","Hiragino Sans GB",sans-serif;
    color:var(--ink);background:var(--bg);line-height:1.7;
    -webkit-font-smoothing:antialiased;
  }
  img{max-width:100%;display:block}
  a{text-decoration:none;color:inherit}
  ul{list-style:none}
  .container{max-width:var(--maxw);margin:0 auto;padding:0 20px}

  /* ---------- 顶部通栏 ---------- */
  .topbar{background:var(--primary-dark);color:rgba(255,255,255,.85);font-size:13px}
  .topbar .container{display:flex;justify-content:space-between;align-items:center;height:36px}
  .topbar span{display:inline-flex;align-items:center;gap:6px}
  @media(max-width:640px){.topbar .hide-sm{display:none}}

  /* ---------- 导航 ---------- */
  header{position:sticky;top:0;z-index:100;background:rgba(255,255,255,.96);backdrop-filter:blur(8px);box-shadow:0 2px 12px rgba(0,0,0,.06)}
  .nav{display:flex;align-items:center;justify-content:space-between;height:72px}
  .logo{display:flex;align-items:center;gap:12px}
  .logo img{width:48px;height:48px;border-radius:50%;object-fit:cover}
  .logo-text b{display:block;font-size:20px;color:var(--primary-dark);letter-spacing:2px;line-height:1.3}
  .logo-text small{font-size:11px;color:var(--ink-2);letter-spacing:1px}
  .menu{display:flex;gap:6px}
  .menu a{padding:8px 16px;border-radius:20px;font-size:15px;color:var(--ink);transition:.25s}
  .menu a:hover,.menu a.active{background:var(--primary-light);color:var(--primary)}
  .nav-cta{background:linear-gradient(135deg,var(--accent),var(--accent-dark));color:#fff;padding:10px 22px;border-radius:24px;font-size:14px;white-space:nowrap;box-shadow:0 4px 14px rgba(200,162,74,.4);transition:.25s}
  .nav-cta:hover{transform:translateY(-2px)}
  .burger{display:none;flex-direction:column;gap:5px;background:none;border:none;cursor:pointer;padding:8px}
  .burger i{display:block;width:24px;height:2px;background:var(--primary-dark);transition:.3s}
  @media(max-width:900px){
    .menu{position:fixed;top:0;right:-280px;width:260px;height:100vh;background:#fff;flex-direction:column;padding:90px 24px 24px;gap:4px;box-shadow:-8px 0 30px rgba(0,0,0,.1);transition:right .3s}
    .menu.open{right:0}
    .menu a{padding:14px;border-radius:10px;font-size:16px}
    .burger{display:flex}
    .nav-cta{display:none}
  }

  /* ---------- Hero ---------- */
  .hero{position:relative;overflow:hidden;color:#fff;
    background:linear-gradient(135deg,var(--primary-dark) 0%,var(--primary) 55%,#2b7a4d 100%)}
  .hero::before,.hero::after{
    content:"";position:absolute;border-radius:50%;opacity:.12;background:#fff}
  .hero::before{width:520px;height:520px;top:-220px;right:-120px}
  .hero::after{width:340px;height:340px;bottom:-160px;left:-100px}
  .hero-inner{position:relative;z-index:2;display:grid;grid-template-columns:1.15fr .85fr;gap:40px;align-items:center;padding:90px 0 100px}
  .hero-tag{display:inline-block;background:rgba(255,255,255,.15);border:1px solid rgba(255,255,255,.3);padding:6px 18px;border-radius:20px;font-size:14px;letter-spacing:2px;margin-bottom:22px}
  .hero h1{font-size:clamp(30px,4.5vw,52px);line-height:1.25;font-weight:800;letter-spacing:1px}
  .hero h1 em{font-style:normal;color:var(--accent)}
  .hero p.sub{margin:20px 0 34px;font-size:clamp(15px,1.6vw,18px);color:rgba(255,255,255,.85);max-width:560px}
  .hero-btns{display:flex;gap:16px;flex-wrap:wrap}
  /* 按钮样式按 yuanheng-homepage/index.html 还原；作用域限定，避免被主题 .btn 覆盖 */
  .hero-btns .btn,.f-hero-btns .btn,.star-cta .btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:14px 32px;border-radius:30px;font-size:16px;font-weight:400;line-height:1.5;text-align:center;text-decoration:none;border:0;background-color:transparent;color:#fff;cursor:pointer;transition:.25s}
  .hero-btns .btn-gold,.f-hero-btns .btn-gold{background:linear-gradient(135deg,#e2be6a,var(--accent-dark));color:#fff;box-shadow:0 8px 24px rgba(0,0,0,.25)}
  .hero-btns .btn-gold:hover,.f-hero-btns .btn-gold:hover{transform:translateY(-3px)}
  .hero-btns .btn-ghost{border:1.5px solid rgba(255,255,255,.55);color:#fff}
  .hero-btns .btn-ghost:hover{background:rgba(255,255,255,.12)}
  /* hero 右侧插画卡 */
  .hero-card{background:rgba(255,255,255,.1);border:1px solid rgba(255,255,255,.22);border-radius:24px;padding:36px 32px;backdrop-filter:blur(6px)}
  .hero-card h3{font-size:20px;margin-bottom:18px;color:var(--accent);letter-spacing:1px}
  .hero-card li{display:flex;gap:10px;margin-bottom:14px;font-size:15px;color:rgba(255,255,255,.9)}
  .hero-card li::before{content:"✓";color:var(--accent);font-weight:700}
  .hero-stats{display:flex;gap:28px;margin-top:26px;padding-top:22px;border-top:1px solid rgba(255,255,255,.2)}
  .hero-stats b{display:block;font-size:26px;color:var(--accent)}
  .hero-stats span{font-size:12px;color:rgba(255,255,255,.75)}
  @media(max-width:900px){
    .hero-inner{grid-template-columns:1fr;padding:64px 0 70px;text-align:center}
    .hero p.sub{margin-left:auto;margin-right:auto}
    .hero-btns{justify-content:center}
    .hero-card{text-align:left;max-width:480px;margin:0 auto}
  }

  /* ---------- 通用 section ---------- */
  section{padding:80px 0}
  @media(max-width:640px){section{padding:56px 0}}
  .sec-head{text-align:center;max-width:680px;margin:0 auto 52px;padding-top: 40px;}
  .sec-head .kicker{display:inline-block;color:var(--accent-dark);font-size:13px;letter-spacing:4px;margin-bottom:10px;font-weight:600}
  .sec-head h2{font-size:clamp(24px,3.2vw,36px);color:var(--primary-dark);letter-spacing:1px}
  .sec-head h2 em{font-style:normal;color:var(--accent-dark)}
  .sec-head p{margin-top:12px;color:var(--ink-2);font-size:15px}

  /* ---------- 核心业务 ---------- */
  .services{background:var(--white)}
  .svc-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:28px}
  .svc{background:var(--bg);border-radius:var(--radius);padding:48px 40px;border:1px solid #eee7d8;transition:.3s;position:relative;overflow:hidden}
  .svc:hover{transform:translateY(-8px);box-shadow:var(--shadow);border-color:var(--accent)}
  .svc .icon{width:64px;height:64px;border-radius:18px;display:flex;align-items:center;justify-content:center;font-size:30px;margin-bottom:22px;background:linear-gradient(135deg,var(--primary-light),#fff);border:1px solid var(--primary-light)}
  .svc h3{font-size:22px;color:var(--primary-dark);margin-bottom:12px}
  .svc p{font-size:14.5px;color:var(--ink-2);margin-bottom:18px}
  .svc .more{color:var(--accent-dark);font-size:14px;font-weight:600}
  .svc .svc-tags{display:flex;gap:8px;flex-wrap:wrap;margin-bottom:18px}
  .svc .svc-tags span{background:var(--primary-light);color:var(--primary);font-size:12px;padding:4px 12px;border-radius:12px}
  .svc.hot{border:1.5px solid var(--accent);background:linear-gradient(135deg,#fffdf6,var(--bg))}
  .svc.hot::after{content:"主推";position:absolute;top:16px;right:-34px;background:linear-gradient(135deg,#e2be6a,var(--accent-dark));color:#fff;font-size:12px;letter-spacing:4px;padding:4px 40px;transform:rotate(45deg)}
  @media(max-width:900px){.svc-grid{grid-template-columns:1fr;max-width:460px}}

  /* ---------- 明星产品横幅 ---------- */
  .star{background:linear-gradient(180deg,var(--white),var(--bg))}
  .star-banner{position:relative;border-radius:20px;overflow:hidden;box-shadow:0 18px 44px rgba(20,60,40,.16)}
  .star-banner img{width:100%;height:auto}
  .star-cta{position:absolute;left:50%;bottom:5%;transform:translateX(-50%);display:flex;gap:14px;flex-wrap:wrap;justify-content:center}
  .star-cta .btn-dark{background:var(--primary-dark);color:#fff;box-shadow:0 8px 22px rgba(14,61,36,.4);padding:12px 28px;font-size:15px}
  .star-cta .btn-dark:hover{transform:translateY(-3px)}
  .star-cta .btn-outline-dark{background:rgba(255,255,255,.92);color:var(--primary-dark);border:1.5px solid var(--primary);padding:12px 28px;font-size:15px}
  .star-cta .btn-outline-dark:hover{background:#fff;transform:translateY(-3px)}
  .star-badges{display:grid;grid-template-columns:repeat(3,1fr);gap:18px;margin-top:34px}
  .sb{background:var(--white);border:1px solid #eee7d8;border-radius:14px;padding:20px 18px;text-align:center;transition:.3s}
  .sb:hover{transform:translateY(-5px);box-shadow:var(--shadow);border-color:var(--accent)}
  .sb .icon{font-size:28px;margin-bottom:8px}
  .sb b{display:block;font-size:15px;color:var(--primary-dark)}
  .sb span{font-size:13px;color:var(--ink-2)}
  @media(max-width:640px){.star-badges{grid-template-columns:1fr}.star-cta{position:static;transform:none;margin-top:18px;justify-content:center}}

  /* ---------- 产品系列（分类标签页） ---------- */
  .prod-tabs{display:flex;justify-content:center;gap:12px;flex-wrap:wrap;margin-bottom:40px}
  .ptab{padding:12px 34px;border-radius:30px;border:1.5px solid #dcd5c2;background:var(--white);color:var(--ink-2);font-size:16px;letter-spacing:2px;cursor:pointer;transition:.28s;font-family:inherit}
  .ptab:hover{border-color:var(--primary);color:var(--primary)}
  .ptab.active{background:linear-gradient(135deg,var(--primary),#2b7a4d);border-color:var(--primary);color:#fff;box-shadow:0 8px 20px rgba(26,92,58,.28)}
  .ptab .cnt{font-size:12px;opacity:.75;margin-left:4px}
  .prod-panel{display:none;animation:fadeUp .45s ease}
  .prod-panel.show{display:block}
  @keyframes fadeUp{from{opacity:0;transform:translateY(16px)}to{opacity:1;transform:translateY(0)}}
  .prod-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px}
  .prod{background:var(--white);border-radius:var(--radius);overflow:hidden;box-shadow:0 4px 18px rgba(0,0,0,.05);transition:.3s}
  .prod:hover{transform:translateY(-6px);box-shadow:var(--shadow)}
  .prod .thumb{aspect-ratio:1/1;background:#ececea;overflow:hidden;position:relative}
  .prod .thumb img{width:100%;height:100%;object-fit:cover;transition:.4s}
  .prod:hover .thumb img{transform:scale(1.05)}
  .prod .thumb .tag{position:absolute;top:12px;left:12px;background:rgba(255,255,255,.94);color:var(--primary-dark);font-size:11px;font-weight:700;letter-spacing:1px;padding:4px 12px;border-radius:12px;box-shadow:0 2px 8px rgba(0,0,0,.12)}
  .prod .body{padding:16px 18px 20px;text-align:center}
  .prod h3{font-size:15px;color:var(--ink);font-weight:600}
  .prod p{font-size:12px;color:var(--accent-dark);margin-top:4px;letter-spacing:.5px}
  .prod-note{text-align:center;color:var(--ink-2);font-size:13px;margin-top:28px}
  @media(max-width:1000px){.prod-grid{grid-template-columns:repeat(2,1fr)}}
  @media(max-width:520px){
    .prod-grid{grid-template-columns:repeat(2,1fr);gap:10px}
    .prod .body{padding:10px 8px 14px}
    .prod h3{font-size:13px}
    .prod p{font-size:11px}
    .prod .thumb .tag{top:8px;left:8px;font-size:10px;padding:3px 9px}
    .ptab{padding:10px 22px;font-size:14px}
  }

  /* ---------- 招商加盟专区（重点版块） ---------- */
  .franchise{background:linear-gradient(180deg,var(--white),var(--bg))}
  .menu a.join-link{color:var(--accent-dark);font-weight:700}
  .f-hero{display:grid;grid-template-columns:1.25fr .75fr;background:linear-gradient(135deg,var(--primary-dark),var(--primary) 60%,#2b7a4d);border-radius:24px;overflow:hidden;color:#fff;box-shadow:0 16px 40px rgba(14,61,36,.25);margin-bottom:64px}
  .f-hero-text{padding:48px 44px}
  .f-hero-text .f-label{display:inline-block;background:rgba(200,162,74,.2);border:1px solid rgba(200,162,74,.55);color:#e2be6a;font-size:13px;letter-spacing:3px;padding:5px 16px;border-radius:18px;margin-bottom:18px}
  .f-hero-text h3{font-size:clamp(22px,2.8vw,32px);line-height:1.35;margin-bottom:14px}
  .f-hero-text p{color:rgba(255,255,255,.85);font-size:15px;margin-bottom:26px;text-align:justify}
  .f-hero-btns{display:flex;gap:14px;flex-wrap:wrap}
  .f-hero-btns .btn-ghost-dark{border:1.5px solid rgba(255,255,255,.55);color:#fff}
  .f-hero-btns .btn-ghost-dark:hover{background:rgba(255,255,255,.12)}
  .f-hero-side{background:rgba(255,255,255,.07);border-left:1px solid rgba(255,255,255,.16);display:grid;grid-template-rows:repeat(3,1fr)}
  .f-kpi{display:flex;flex-direction:column;justify-content:center;padding:0 36px;border-bottom:1px solid rgba(255,255,255,.13)}
  .f-kpi:last-child{border-bottom:none}
  .f-kpi b{font-size:27px;color:var(--accent);line-height:1.3}
  .f-kpi span{font-size:13px;color:rgba(255,255,255,.78)}
  .f-sub{display:flex;align-items:center;gap:16px;font-size:clamp(19px,2.2vw,24px);color:var(--primary-dark);letter-spacing:2px;margin-bottom:34px}
  .f-sub::after{content:"";flex:1;height:1px;background:linear-gradient(90deg,#d8d0ba,transparent)}
  .f-sub em{font-style:normal;color:var(--accent-dark)}
  .adv-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px;margin-bottom:72px}
  .adv{background:var(--white);border:1px solid #eee7d8;border-radius:var(--radius);padding:30px 28px;transition:.3s;position:relative;overflow:hidden}
  .adv::before{content:"";position:absolute;top:0;left:0;width:100%;height:3px;background:linear-gradient(90deg,var(--primary),var(--accent));opacity:0;transition:.3s}
  .adv:hover{transform:translateY(-6px);box-shadow:var(--shadow);border-color:var(--accent)}
  .adv:hover::before{opacity:1}
  .adv .icon{width:56px;height:56px;border-radius:16px;background:var(--primary-light);display:flex;align-items:center;justify-content:center;font-size:26px;margin-bottom:16px}
  .adv h4{font-size:17px;color:var(--primary-dark);margin-bottom:8px}
  .adv p{font-size:13px;color:var(--ink-2)}

  /* 加盟流程（时间轴卡片式） */
  .steps{display:grid;grid-template-columns:repeat(4,1fr);gap:30px;margin:44px 0 72px}
  .step{position:relative;background:var(--white);border:1px solid #eee7d8;border-radius:18px;padding:44px 24px 28px;text-align:center;transition:.3s;box-shadow:0 6px 18px rgba(20,60,40,.05);overflow:visible}
  .step:hover{transform:translateY(-8px);border-color:var(--accent);box-shadow:var(--shadow)}
  .step .num{position:absolute;top:-26px;left:50%;transform:translateX(-50%);width:52px;height:52px;border-radius:50%;background:linear-gradient(135deg,#e2be6a,var(--accent-dark));color:#fff;font-size:20px;font-weight:800;display:flex;align-items:center;justify-content:center;box-shadow:0 0 0 6px var(--bg),0 8px 18px rgba(168,132,47,.35);transition:.3s}
  .step:hover .num{transform:translateX(-50%) scale(1.1)}
  .step h4{font-size:18px;color:var(--primary-dark);margin:4px 0 10px;letter-spacing:2px}
  .step p{font-size:13px;color:var(--ink-2)}
  .step::after{content:"➜";position:absolute;top:50%;right:-27px;transform:translateY(-50%);color:var(--accent);font-size:20px;opacity:.75;z-index:2}
  .step:last-child::after{display:none}
  /* 总部八大扶持 */
  .support-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}
  .support{display:flex;gap:12px;align-items:center;background:linear-gradient(135deg,#ffffff,#faf7ee);border:1px solid #eee7d8;border-radius:14px;padding:16px 18px;transition:.3s;position:relative;overflow:hidden}
  .support::before{content:"";position:absolute;left:0;top:0;bottom:0;width:3px;background:linear-gradient(180deg,var(--primary),var(--accent));opacity:0;transition:.3s}
  .support:hover{transform:translateY(-4px);box-shadow:var(--shadow);border-color:var(--accent)}
  .support:hover::before{opacity:1}
  .support .s-icon{width:44px;height:44px;flex-shrink:0;border-radius:12px;background:var(--primary-light);display:flex;align-items:center;justify-content:center;font-size:21px}
  .support b{color:var(--primary-dark);display:block;font-size:14.5px}
  .support span{color:var(--ink-2);font-size:12.5px}
  @media(max-width:900px){
    .f-hero{grid-template-columns:1fr}
    .f-hero-side{border-left:none;border-top:1px solid rgba(255,255,255,.16);grid-template-rows:none;grid-template-columns:1fr}
    .f-kpi{padding:14px 36px;border-bottom:1px solid rgba(255,255,255,.13)}
    .adv-grid{grid-template-columns:1fr;max-width:460px;margin-left:auto;margin-right:auto;margin-bottom:56px}
    .steps{grid-template-columns:repeat(2,1fr);gap:38px 20px;margin-bottom:56px}
    .step::after{display:none}
    .support-grid{grid-template-columns:repeat(2,1fr)}
  }
  @media(max-width:520px){.steps{grid-template-columns:1fr}.support-grid{grid-template-columns:1fr}}

  /* ---------- 全国版图 ---------- */
  .map-sec{background:var(--white)}
  .map-figure{position:relative;border-radius:20px;overflow:hidden;box-shadow:0 14px 36px rgba(20,60,40,.12);background:#fff}
  .map-figure img{width:100%;height:auto}
  .map-stats{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;margin-top:26px}
  .stat{background:var(--white);border-radius:var(--radius);padding:28px 20px;text-align:center;border:1px solid #eee7d8;box-shadow:0 8px 24px rgba(20,60,40,.06);transition:.3s}
  .stat:hover{transform:translateY(-6px);border-color:var(--accent)}
  .stat b{display:block;font-size:clamp(24px,2.8vw,32px);color:var(--primary);font-weight:800;line-height:1.3}
  .stat b i{font-style:normal;font-size:15px;color:var(--accent-dark);margin-left:2px}
  .stat span{font-size:13px;color:var(--ink-2);letter-spacing:1px}
  @media(max-width:800px){.map-stats{grid-template-columns:repeat(2,1fr)}}
  @media(max-width:420px){.map-stats{grid-template-columns:1fr}}

  /* ---------- 加盟问答 ---------- */
  .faq{background:var(--bg)}
  .faq-list{max-width:1480px;margin:0 auto;display:flex;flex-direction:column;gap:16px}
  .faq-item{background:var(--white);border:1px solid #eee7d8;border-radius:14px;overflow:hidden;transition:.3s}
  .faq-item[open]{border-color:var(--accent);box-shadow:var(--shadow)}
  .faq-item summary{list-style:none;cursor:pointer;display:flex;align-items:center;gap:14px;padding:20px 24px;font-size:16px;font-weight:600;color:var(--primary-dark)}
  .faq-item summary::-webkit-details-marker{display:none}
  .faq-item summary .qmark{flex-shrink:0;width:32px;height:32px;border-radius:50%;background:linear-gradient(135deg,var(--primary),#2b7a4d);color:#fff;font-size:15px;font-weight:700;display:flex;align-items:center;justify-content:center}
  .faq-item summary .arrow{margin-left:auto;flex-shrink:0;color:var(--accent-dark);transition:.3s;font-size:13px}
  .faq-item[open] summary .arrow{transform:rotate(180deg)}
  .faq-item .answer{padding:0 24px 22px 70px;font-size:14.5px;line-height:1.9;color:var(--ink-2)}
  .faq-item .answer a{color:var(--accent-dark);font-weight:600}
  @media(max-width:640px){
    .faq-item summary{padding:16px 16px;font-size:15px}
    .faq-item .answer{padding:0 16px 18px 16px}
  }

  /* ---------- 资讯 ---------- */
  .news-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
  .news{background:var(--white);border-radius:var(--radius);overflow:hidden;box-shadow:0 4px 16px rgba(0,0,0,.05);transition:.3s;display:flex;flex-direction:column}
  .news:hover{transform:translateY(-6px);box-shadow:var(--shadow)}
  .news .cover{height:150px;display:flex;align-items:center;justify-content:center;font-size:44px}
  .news:nth-child(1) .cover{background:linear-gradient(135deg,#e8f3ec,#d3e8db);color:var(--primary)}
  .news:nth-child(2) .cover{background:linear-gradient(135deg,#faf0d8,#f2e2b6);color:var(--accent-dark)}
  .news:nth-child(3) .cover{background:linear-gradient(135deg,#e4efe9,#cfe3d6);color:#2b7a4d}
  .news .body{padding:22px 24px 26px;flex:1}
  .news .date{font-size:12px;color:var(--accent-dark);letter-spacing:1px}
  .news h3{font-size:17px;margin:8px 0 10px;color:var(--ink)}
  .news p{font-size:13px;color:var(--ink-2)}
  @media(max-width:900px){.news-grid{grid-template-columns:1fr;max-width:460px;margin:0 auto}}

  /* ---------- 页脚 ---------- */
  footer{background:#0b2a18;color:rgba(255,255,255,.65);padding:52px 0 0;font-size:14px}
  .foot-grid{display:grid;grid-template-columns:1.4fr 1fr 1.2fr;gap:44px;padding-bottom:40px}
  footer h4{color:#fff;font-size:16px;margin-bottom:16px;letter-spacing:2px}
  footer li{margin-bottom:8px}
  footer a:hover{color:var(--accent)}
  .foot-logo{display:flex;align-items:center;gap:12px;margin-bottom:14px}
  .foot-logo img{width:44px;height:44px;border-radius:50%}
  .foot-logo b{color:#fff;font-size:18px;letter-spacing:2px}
  .foot-bottom{border-top:1px solid rgba(255,255,255,.12);padding:18px 0;text-align:center;font-size:13px;color:rgba(255,255,255,.4)}
  @media(max-width:800px){.foot-grid{grid-template-columns:1fr;gap:32px}}
  .foot-qr{margin-top:16px;display:flex;align-items:center;gap:14px}
  .foot-qr img{width:96px;height:96px;border-radius:10px;background:#fff;padding:5px}
  .foot-qr span{font-size:13px;line-height:1.8;color:rgba(255,255,255,.65)}

  /* 移动端底部快捷栏 */
  .m-bar{display:none}
  @media(max-width:768px){
    .m-bar{position:fixed;left:0;right:0;bottom:0;z-index:100;display:grid;grid-template-columns:1fr 1fr 1fr;background:#fff;box-shadow:0 -4px 16px rgba(0,0,0,.1);padding-bottom:env(safe-area-inset-bottom)}
    .m-bar button,.m-bar a{border:none;background:none;font-family:inherit;display:flex;flex-direction:column;align-items:center;gap:3px;padding:9px 0 8px;font-size:12px;color:var(--primary-dark);text-decoration:none;cursor:pointer}
    .m-bar .mi{font-size:21px;line-height:1}
    .m-bar .m-tel{color:#fff;background:linear-gradient(135deg,var(--primary),#2b7a4d);font-weight:700}
    .m-bar .m-wx{color:var(--primary-dark)}
    body{padding-bottom:58px}
    .back-top{bottom:70px;right:14px;width:40px;height:40px;font-size:17px}
  }

  /* 微信弹窗 */
  .wx-mask{position:fixed;inset:0;background:rgba(0,0,0,.55);z-index:200;display:none;align-items:center;justify-content:center;padding:20px}
  .wx-mask.show{display:flex}
  .wx-pop{background:#fff;border-radius:16px;max-width:320px;width:100%;padding:28px 24px;text-align:center;position:relative}
  .wx-pop .close{position:absolute;top:10px;right:14px;border:none;background:none;font-size:22px;color:#999;cursor:pointer;line-height:1}
  .wx-pop h4{color:var(--primary-dark);font-size:17px;letter-spacing:1px;margin-bottom:6px}
  .wx-pop .sub{font-size:13px;color:var(--ink-2);margin-bottom:14px}
  .wx-pop img{width:200px;height:200px;margin:0 auto 12px;border:1px solid #eee;border-radius:10px;padding:6px;background:#fff}
  .wx-pop .wxnum{font-size:15px;font-weight:700;color:var(--primary-dark);letter-spacing:1px;margin-bottom:14px}
  .wx-pop .copy-btn{width:100%;padding:12px;border:none;border-radius:10px;background:linear-gradient(135deg,var(--primary),#2b7a4d);color:#fff;font-size:15px;font-weight:700;letter-spacing:2px;cursor:pointer}
  .wx-pop .copy-btn:active{filter:brightness(1.1)}
  .wx-pop .tip{font-size:12px;color:var(--ink-2);margin-top:10px}

  /* 返回顶部 */
  .back-top{position:fixed;right:22px;bottom:26px;width:46px;height:46px;border-radius:50%;background:var(--primary);color:#fff;display:flex;align-items:center;justify-content:center;font-size:20px;box-shadow:0 6px 18px rgba(26,92,58,.4);opacity:0;pointer-events:none;transition:.3s;z-index:99;border:none;cursor:pointer}
  .back-top.show{opacity:1;pointer-events:auto}
  @media (min-width: 1400px) {
  .container, .container-lg, .container-md, .container-sm, .container-xl, .container-xxl {
    max-width: 1480px;
  }
}