/* ============================================================
   LUMÉA LAB 移动端官网 · 浅蓝 #EFF7FF + 雾蓝 #4E86C6
   冷白 + 浅银灰 · 清透实验室风 · 手机竖屏优先
   ============================================================ */
:root{
  --ice:#EFF7FF;
  --ice2:#F8FBFF;
  --blue:#4E86C6;
  --blue2:#3F74B0;
  --blue-soft:#82AADB;
  --white:#FFFFFF;
  --silver:#E7EEF6;
  --silver2:#D2DEEB;
  --ink:#22384D;
  --text2:#647787;
  --line:rgba(78,134,198,.16);
  --line-soft:rgba(78,134,198,.09);
  --radius:16px;
  --radius-sm:12px;
  --shadow:0 12px 30px rgba(78,134,198,.12);
  --shadow-soft:0 6px 18px rgba(34,56,77,.06);
  --font:"Noto Sans SC","PingFang SC","Microsoft YaHei",-apple-system,sans-serif;
  --display:"Jost","Noto Sans SC","PingFang SC",sans-serif;
}
*{box-sizing:border-box;margin:0;padding:0;-webkit-tap-highlight-color:transparent}
body.lb{font-family:var(--font);background:radial-gradient(circle at 50% 0,#E6F1FF,#EDF4FB 55%,#EEF5FC);color:var(--text2);font-size:14px;line-height:1.7;font-weight:400;overflow-x:hidden}
img{display:block;max-width:100%}
a{color:inherit;text-decoration:none}
button{font-family:inherit;cursor:pointer}
::selection{background:rgba(78,134,198,.22);color:var(--ink)}

.m-app{max-width:560px;margin:0 auto;background:var(--ice2);min-height:100vh;position:relative}
@media (min-width:600px){ .m-app{box-shadow:0 0 60px rgba(16,35,63,.14)} }

/* ---------- 首页品牌导航（浮于 Hero） ---------- */
.m-top{position:absolute;top:0;left:0;right:0;z-index:40;display:flex;align-items:center;justify-content:space-between;padding:20px 22px}
.m-brand{font-family:var(--display);font-size:19px;letter-spacing:.2em;color:var(--ink);font-weight:600}
.m-menu-btn{width:40px;height:40px;border:1px solid var(--line);background:rgba(255,255,255,.6);border-radius:10px;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:4px;backdrop-filter:blur(6px)}
.m-menu-btn i{display:block;width:18px;height:1.6px;background:var(--ink);border-radius:2px}
/* 菜单浮层 */
.m-menu{position:fixed;inset:0;max-width:560px;margin:0 auto;z-index:90;background:linear-gradient(160deg,var(--blue),var(--blue2));padding:80px 30px;display:flex;flex-direction:column;gap:8px;transform:translateX(100%);opacity:0;pointer-events:none;transition:transform .35s cubic-bezier(.16,1,.3,1),opacity .3s}
.m-menu.open{transform:none;opacity:1;pointer-events:auto}
.m-menu-head{font-family:var(--display);font-size:17px;letter-spacing:.22em;color:#CFEBFF;margin-bottom:22px}
.m-menu a{padding:18px 4px;font-size:17px;color:#fff;letter-spacing:.05em;border-bottom:1px solid rgba(255,255,255,.16)}
.m-menu-close{position:absolute;top:22px;right:22px;width:40px;height:40px;border-radius:10px;border:1px solid rgba(255,255,255,.35);background:none;color:#fff;font-size:16px}

/* ---------- 二级页深蓝标题栏 ---------- */
.m-nav{position:sticky;top:0;z-index:60;height:56px;display:flex;align-items:center;justify-content:space-between;padding:0 16px;background:linear-gradient(180deg,var(--blue),var(--blue2));color:#fff;box-shadow:0 3px 14px rgba(78,134,198,.22)}
.m-nav-back,.m-nav-ico{width:40px;height:40px;display:flex;align-items:center;justify-content:center;color:#fff;background:none;border:none}
.m-nav-title{font-size:16px;letter-spacing:.1em;color:#fff;font-weight:500}
.m-nav-spacer{width:40px;height:40px}
.m-searchbar{display:none;align-items:center;gap:8px;padding:10px 16px;background:var(--blue2)}
.m-searchbar input{flex:1;height:40px;border-radius:10px;border:none;padding:0 14px;font-size:14px;background:#fff;color:var(--ink)}
.m-searchbar input:focus{outline:2px solid #9CC2FF}
.m-searchbar button{height:40px;padding:0 16px;border-radius:10px;border:none;background:#CFEBFF;color:var(--blue2);font-size:13px;font-weight:500}

/* ---------- 通用 ---------- */
.m-kicker{display:inline-block;font-family:var(--display);font-size:10px;letter-spacing:.32em;color:var(--blue);text-transform:uppercase}
.m-btn-blue{display:inline-flex;align-items:center;justify-content:center;height:50px;padding:0 36px;border-radius:26px;font-size:15px;letter-spacing:.05em;border:none;background:var(--blue);color:#fff;box-shadow:0 10px 24px rgba(78,134,198,.28);transition:.3s cubic-bezier(.16,1,.3,1)}
.m-btn-blue:active{transform:scale(.97);box-shadow:0 6px 16px rgba(78,134,198,.24)}

/* ---------- Hero ---------- */
.m-hero{position:relative;padding:92px 24px 48px;background:linear-gradient(165deg,#F7FBFF 0%,#EFF7FF 52%,#E3F0FF 100%);text-align:center;overflow:hidden}
/* 半透明玻璃质感圆环 */
.m-ring{position:absolute;border-radius:50%;border:1px solid rgba(78,134,198,.22);pointer-events:none}
.m-ring.r1{width:360px;height:360px;top:26px;left:50%;transform:translateX(-50%);background:radial-gradient(circle at 30% 25%,rgba(255,255,255,.85),rgba(255,255,255,.15) 55%,rgba(78,134,198,.06));box-shadow:inset 0 0 40px rgba(255,255,255,.7)}
.m-ring.r2{width:250px;height:250px;top:82px;left:50%;transform:translateX(-50%);border-color:rgba(78,134,198,.14)}
.m-hero-media{position:relative;z-index:2;width:70%;max-width:300px;aspect-ratio:4/3;margin:0 auto 28px;border-radius:20px;overflow:hidden;box-shadow:0 22px 46px rgba(78,134,198,.20);border:1px solid rgba(255,255,255,.8)}
.m-hero-media img{width:100%;height:100%;object-fit:cover}
.m-hero-copy{position:relative;z-index:2}
.m-hero-copy h1{font-size:32px;letter-spacing:.05em;color:var(--ink);font-weight:600;margin:12px 0 10px}
.m-hero-sub{font-size:14.5px;color:var(--blue2);letter-spacing:.12em;margin-bottom:28px;font-weight:500}

/* ---------- 区块 ---------- */
.m-sec{padding:34px 22px}
.m-h2{font-size:19px;color:var(--ink);font-weight:600;letter-spacing:.04em;margin-bottom:20px;position:relative;padding-left:12px}
.m-h2::before{content:"";position:absolute;left:0;top:3px;bottom:3px;width:3px;border-radius:3px;background:var(--blue)}
.m-h2-row{display:flex;align-items:center;justify-content:space-between;margin-bottom:20px}
.m-h2-row .m-h2{margin-bottom:0}
.m-more{font-size:13px;color:var(--blue)}

/* 品牌优势 */
.m-adv3{display:grid;grid-template-columns:repeat(3,1fr);gap:12px}
.m-adv{background:#fff;border:1px solid var(--silver);border-radius:var(--radius);padding:22px 10px;text-align:center;box-shadow:var(--shadow-soft)}
.m-ico{width:46px;height:46px;border-radius:13px;background:var(--ice);display:flex;align-items:center;justify-content:center;color:var(--blue);margin:0 auto 12px}
.m-ico svg{width:24px;height:24px}
.m-adv b{font-size:13.5px;color:var(--ink);font-weight:500}

/* 明星产品 横滑 */
.m-scroll{display:flex;gap:14px;overflow-x:auto;padding-bottom:8px;scroll-snap-type:x mandatory;scrollbar-width:none}
.m-scroll::-webkit-scrollbar{display:none}
.m-prod-card{flex:0 0 46%;max-width:180px;scroll-snap-align:start}
.m-prod-media{position:relative;aspect-ratio:1/1;border-radius:var(--radius);overflow:hidden;background:var(--ice);border:1px solid var(--silver)}
.m-prod-media img{width:100%;height:100%;object-fit:cover}
.m-tag{position:absolute;top:10px;left:10px;font-size:10.5px;letter-spacing:.03em;color:var(--blue2);background:rgba(234,244,255,.92);padding:3px 9px;border-radius:20px;border:1px solid rgba(78,134,198,.2)}
.m-prod-name{font-size:13.5px;color:var(--ink);font-weight:500;margin-top:10px;line-height:1.45;height:40px;overflow:hidden}
.m-prod-sell{font-size:11.5px;color:var(--text2);margin-top:3px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.m-empty{color:var(--text2);font-size:13px;padding:20px;text-align:center;width:100%}

/* 代理扶持 4 图标 */
.m-sup4{display:grid;grid-template-columns:repeat(4,1fr);gap:10px}
.m-sup{background:#fff;border:1px solid var(--silver);border-radius:var(--radius-sm);padding:18px 6px;text-align:center}
.m-sup .m-ico{width:42px;height:42px;margin-bottom:10px}
.m-sup span{font-size:12px;color:var(--ink)}

/* 联系区 */
.m-contact{padding:30px 22px 34px;background:var(--ice);border-top:1px solid var(--silver)}
.m-contact-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:12px}
.m-contact-item{background:#fff;border:1px solid var(--silver);border-radius:var(--radius);padding:20px 8px;text-align:center;box-shadow:var(--shadow-soft);transition:.25s}
.m-contact-item:active{transform:scale(.97)}
.m-contact-item .m-ico{width:42px;height:42px;margin-bottom:8px}
.m-contact-item span{font-size:13px;color:var(--ink)}
.m-contact-note{text-align:center;color:var(--text2);font-size:11.5px;letter-spacing:.05em;margin-top:20px}

/* ---------- 产品展示页 ---------- */
.m-chips{display:flex;gap:8px;overflow-x:auto;padding:14px 16px;background:var(--ice2);position:sticky;top:56px;z-index:40;scrollbar-width:none;border-bottom:1px solid var(--silver)}
.m-chips::-webkit-scrollbar{display:none}
.m-chips a{flex:0 0 auto;padding:7px 16px;border-radius:20px;font-size:13px;color:var(--text2);background:#fff;border:1px solid var(--silver)}
.m-chips a.on{background:var(--blue);color:#fff;border-color:var(--blue)}
.m-list{padding:16px;display:flex;flex-direction:column;gap:14px}
.m-row-card{display:flex;gap:14px;background:#fff;border:1px solid var(--silver);border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow-soft);transition:.25s;padding:10px}
.m-row-card:active{transform:scale(.985)}
.m-row-media{position:relative;flex:0 0 104px;height:104px;border-radius:12px;overflow:hidden;background:var(--ice)}
.m-row-media img{width:100%;height:100%;object-fit:cover}
.m-row-media .m-tag{top:6px;left:6px;font-size:9.5px;padding:2px 7px}
.m-row-info{flex:1;min-width:0;display:flex;flex-direction:column;justify-content:center}
.m-row-info h3{font-size:14.5px;color:var(--ink);font-weight:600;line-height:1.4;margin-bottom:6px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.m-row-info p{font-size:12px;color:var(--text2);line-height:1.6;margin-bottom:8px}
.m-row-more{font-size:12px;color:var(--blue)}
.m-fixedbar{position:fixed;left:0;right:0;bottom:0;max-width:560px;margin:0 auto;padding:12px 16px calc(12px + env(safe-area-inset-bottom));background:rgba(245,250,255,.95);backdrop-filter:blur(10px);border-top:1px solid var(--silver);z-index:55}
.m-fixedbar .m-btn-blue{width:100%;height:50px;border-radius:14px}
.m-pad{height:80px}

/* ---------- 代理合作页 ---------- */
.m-banner{padding:56px 24px 42px;background:linear-gradient(160deg,#F7FBFF,#EFF7FF 60%,#E3F0FF);text-align:center;border-bottom:1px solid var(--silver)}
.m-banner h1{font-size:27px;letter-spacing:.05em;color:var(--ink);font-weight:600;margin-bottom:10px}
.m-banner p{font-size:14px;color:var(--blue2);letter-spacing:.04em;font-weight:500}
.m-type2{display:grid;grid-template-columns:1fr 1fr;gap:12px}
.m-type{background:#fff;border:1px solid var(--silver);border-radius:var(--radius);padding:22px 18px;box-shadow:var(--shadow-soft)}
.m-type h3{font-size:16px;color:var(--ink);font-weight:600;margin-bottom:8px}
.m-type p{font-size:12px;color:var(--text2);line-height:1.7}
/* 纵向流程 */
.m-steps{list-style:none;position:relative;padding-left:8px}
.m-steps li{position:relative;display:flex;align-items:center;gap:16px;padding:0 0 22px 30px}
.m-steps li:not(:last-child)::before{content:"";position:absolute;left:15px;top:30px;bottom:0;width:1px;background:var(--silver2)}
.m-steps li b{position:absolute;left:0;top:0;width:30px;height:30px;border-radius:50%;background:#fff;border:1px solid var(--silver2);color:var(--blue);font-family:var(--display);font-size:12px;display:flex;align-items:center;justify-content:center}
.m-steps li span{font-size:14.5px;color:var(--ink);letter-spacing:.03em;padding-top:4px}
/* 表单 */
.m-apply{background:#fff;border-top:1px solid var(--silver)}
.m-form{display:flex;flex-direction:column;gap:14px}
.m-field{display:flex;flex-direction:column;gap:6px}
.m-field>span{font-size:12.5px;color:var(--text2);letter-spacing:.03em}
.m-field input{height:46px;border-radius:12px;border:1px solid var(--silver2);padding:0 14px;font-size:14px;font-family:inherit;color:var(--ink);background:var(--ice2);transition:.2s}
.m-field input:focus{outline:none;border-color:var(--blue);box-shadow:0 0 0 3px rgba(78,134,198,.12);background:#fff}
.m-hp{position:absolute;left:-9999px;width:1px;height:1px;overflow:hidden}
.m-form-submit{width:100%;height:52px;border-radius:14px;margin-top:6px}
.m-error{padding:11px 14px;border-radius:10px;background:rgba(169,68,66,.08);color:#A94442;font-size:12.5px;margin-bottom:14px;border:1px solid rgba(169,68,66,.18)}
.m-success{text-align:center;padding:26px 10px}
.m-success-ico{width:56px;height:56px;border-radius:50%;margin:0 auto 16px;display:flex;align-items:center;justify-content:center;font-size:26px;color:var(--blue);background:var(--ice)}
.m-success h3{font-size:18px;color:var(--ink);font-weight:600;margin-bottom:8px}
.m-success p{font-size:13px;color:var(--text2)}
.m-hours{text-align:center;font-size:12px;color:var(--text2);letter-spacing:.03em;padding:22px 16px 8px}

/* ---------- 页脚 ---------- */
.m-foot{background:linear-gradient(180deg,var(--blue2),#356596);color:rgba(255,255,255,.78);text-align:center;padding:38px 22px 34px}
.m-foot-brand{font-family:var(--display);font-size:17px;letter-spacing:.24em;color:#fff;margin-bottom:14px}
.m-foot p{font-size:12px;letter-spacing:.04em;margin-bottom:6px}
.m-foot-copy{color:rgba(255,255,255,.5);font-size:11px;margin-top:8px}

/* 渐显 */
[data-reveal]{opacity:0;transform:translateY(18px);transition:opacity .7s cubic-bezier(.16,1,.3,1),transform .7s cubic-bezier(.16,1,.3,1)}
[data-reveal].in{opacity:1;transform:none}

/* ---------- 移动端底部导航条 ---------- */
.m-tabbar{position:fixed;left:0;right:0;bottom:0;max-width:560px;margin:0 auto;z-index:70;display:flex;background:rgba(248,251,255,.96);backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);border-top:1px solid var(--line);padding:8px 4px calc(8px + env(safe-area-inset-bottom))}
.m-tabbar a{flex:1;display:flex;flex-direction:column;align-items:center;gap:3px;font-size:10.5px;letter-spacing:.02em;color:var(--text2);transition:.2s}
.m-tabbar a svg{width:22px;height:22px}
.m-tabbar a.on{color:var(--blue)}
.m-foot{padding-bottom:96px}

/* 客服微信行 */
.m-wxline{display:flex;align-items:center;justify-content:center;gap:10px;flex-wrap:wrap;font-size:13px;color:var(--text2);padding:10px 16px 0}
.m-wxline b{color:var(--ink);font-weight:500;letter-spacing:.04em}
.m-wxcopy{height:28px;padding:0 14px;border-radius:14px;border:1px solid var(--line);background:transparent;color:var(--blue);font-size:12px;cursor:pointer}
.m-wxcopy.copied{opacity:.7}