:root{
  --green-900:#07502B;
  --green-800:#0A6335;
  --green-700:#18ad65;
  --green-600:#12924C;
  --green-500:#1AA65A;
  --green-100:#DCEEE3;
  --green-50:#cbf5dd;
  --gold:#D4882C;
  --gold-soft:#F5EBD8;
  --ink:#1E2723;
  --ink-2:#3E4A43;
  --muted:#6E7C74;
  --line:#E2EAE5;
  --line-2:#EFF4F1;
  --bg:#FFFFFF;
  --bg-soft:#F7FBF8;
  --radius-max:16px;
  --radius:12px;
  --radius-sm:8px;
  --shadow-s:0 1px 2px rgba(16,48,30,.04), 0 1px 6px rgba(16,48,30,.03);
  --shadow-m:0 2px 12px rgba(16,48,30,.06), 0 8px 24px rgba(16,48,30,.05);
  --maxw:1180px;
}
*{box-sizing:border-box;margin:0;padding:0;}
html{scroll-behavior:smooth;scroll-padding-top:96px;}
body{
  font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Source Han Sans SC","Noto Sans CJK SC",sans-serif;
  color:var(--ink);background:var(--bg);line-height:1.75;
  -webkit-font-smoothing:antialiased;font-size:18px;
}
img{max-width:100%;display:block;}
a{color:inherit;text-decoration:none;}
.wrap{max-width:1400px;margin:0 auto;padding:0 28px;}

/* ---------- 原型说明条 ---------- */
.tipbar{background:var(--gold-soft);color:#6B4E15;font-size:14px;text-align:center;padding:7px 16px;letter-spacing:.2px;border-bottom:1px solid #EADFC7;}
.tipbar b{font-weight:600;}

/* ---------- 顶部导航 ---------- */
header{position:sticky;top:0;z-index:60;background:#fff;border-bottom:1px solid var(--line);}
.nav{display:flex;align-items:center;gap:40px;height:80px;}
.brand{display:flex;align-items:center;gap:10px;flex-shrink:0;}
.brand-mark{width:36px;height:36px;display:grid;place-items:center;}
.brand-mark img{width:100%;height:100%;object-fit:contain;}
.brand-txt strong{display:block;font-size:20px;font-weight:700;letter-spacing:.5px;color:var(--green-700);line-height:1.3;}
.brand-txt span{display:block;font-size:12px;color:var(--muted);letter-spacing:.3px;line-height:1.3;}
nav.menu{display:flex;gap:8px;margin-left:auto;}
nav.menu a{font-size:16px;color:var(--ink-2);padding:8px 16px;border-radius:8px;transition:.18s;position:relative;white-space:nowrap;}
nav.menu a:hover{color:var(--green-700);background:var(--green-50);}
nav.menu a.active{color:#fff;font-weight:600;background:var(--green-700);}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:7px;border-radius:8px;font-size:14px;font-weight:600;padding:10px 20px;cursor:pointer;border:1px solid transparent;transition:.2s;white-space:nowrap;}
.btn-primary{background:linear-gradient(145deg,var(--green-700),var(--green-700));color:#fff;box-shadow:0 2px 10px rgba(11,122,62,.22);}
.btn-primary:hover{background:linear-gradient(145deg,var(--green-500),var(--green-700));transform:translateY(-1px);box-shadow:0 6px 18px rgba(11,122,62,.26);}
.btn-ghost{background:#fff;color:var(--green-700);border-color:var(--green-700);}
.btn-ghost:hover{border-color:var(--green-700);color:var(--green-700);background:var(--green-50);}

/* ---------- 微信入口落地区 ---------- */
.wx-card{background:#fff;border:1px solid var(--line);border-radius:18px;box-shadow:var(--shadow-m);padding:36px 40px 32px;margin:30px auto 0;}
.wx-qrs{display:grid;grid-template-columns:1fr 1fr;gap:34px;}
.wx-qr-item{display:flex;flex-direction:column;align-items:center;text-align:center;}
.wx-qr-item + .wx-qr-item{border-left:1px dashed var(--line);padding-left:34px;margin-left:-17px;}
.qr-code{width:300px;height:300px;border-radius:14px;border:1.5px dashed var(--green-700);background:#fff;padding:13px;overflow:hidden;}
.qr-code img{width:100%;height:100%;display:block;object-fit:contain;}
.wx-qr-item h4{font-size:24px;font-weight:500;margin:16px 0 6px;letter-spacing:.3px;}
.wx-qr-item .qr-desc{font-size:18px;color:var(--muted);line-height:1.75;margin:0;width:440px;}
.qr-steps{list-style:none;display:grid;gap:12px;margin:26px 0 0;border-top:1px solid var(--line);padding-top:22px;}
.qr-steps li{display:flex;gap:10px;align-items:flex-start;font-size:18px;color:var(--ink-2);}
.qr-steps b{flex-shrink:0;width:22px;height:22px;border-radius:50%;background:var(--green-700);color:#fff;font-size:14px;font-weight:500;display:grid;place-items:center;margin-top:5px;}
.qr-search{margin-top:20px;background:#eef8f5;border-radius:10px;padding:10px 14px;font-size:14px;color:var(--green-700);text-align:center;margin-bottom:30px;}
.qr-note{font-size:14px;color:var(--muted);text-align:center;margin-top:14px;}


/* ---------- 页脚小程序露出 ---------- */
.fqr{display:flex;gap:16px;align-items:center;margin-top:18px;padding-top:18px;border-top:1px solid rgba(255,255,255,.12);}
.fqr-code{width:92px;height:92px;border-radius:12px;background:#fff;padding:7px;cursor:pointer;flex-shrink:0;display:block;border:none;transition:transform .2s,box-shadow .2s;}
.fqr-code:hover{transform:translateY(-2px);box-shadow:0 6px 16px rgba(0,0,0,.28);}
.fqr-code svg{width:100%;height:100%;display:block;}
.fqr p{font-size:14px;color:#A9C6B4;line-height:1.75;}
.fqr p strong{display:block;color:#fff;font-size:14px;font-weight:600;letter-spacing:.4px;margin-bottom:2px;}
.fqr-dual{display:flex;gap:30px;align-items:stretch;flex-wrap:wrap;}
.fqr-item{display:flex;gap:14px;align-items:center;}
.fqr-item p{max-width:200px;}

.menu-toggle{display:none;margin-left:auto;background:#fff;border:1px solid var(--line);border-radius:9px;width:42px;height:38px;cursor:pointer;color:var(--green-700);}

/* ---------- Hero ---------- */
.hero{position:relative;overflow:hidden;margin-top:-130px;border-bottom:none;background-image:linear-gradient(to bottom, #e7fef6 0%, transparent 100%), url("van_pic.png");background-repeat:no-repeat;background-position:top center, bottom center;z-index:1;}
.hero-inner{position:relative;display:grid;grid-template-columns:1.1fr .9fr;gap:40px;align-items:center;padding-bottom:120px;z-index:2;}
.eyebrow{display:inline-flex;align-items:center;gap:6px;background:#cbf5dd;color:var(--green-700);border:none;font-size:14px;font-weight:500;padding:8px 16px;border-radius:999px;letter-spacing:.3px;}
.eyebrow i{width:6px;height:6px;border-radius:50%;background:var(--green-700);display:block;}
.hero h1{font-size:60px;line-height:1.3;letter-spacing:6px;font-weight:400;color:#E8942A;margin:16px 0 0;}
.hero h1 em{font-style:normal;display:block;font-size:22px;letter-spacing:3px;color:var(--green-700);margin-top:8px;}
.hero p.lead{font-size:18px;color:#000;max-width:580px;margin:20px 0 0;line-height:1.8;}
.hero p.sub{display:none;}
.hero-actions{display:flex;gap:16px;margin-top:60px;flex-wrap:wrap;}
.hero-wx-tip{font-size:14px;color:#666;margin-top:16px;display:flex;align-items:center;gap:8px;}
.hero-wx-tip .qr-icon{width:22px;height:22px;flex-shrink:0;display:inline-block;background:url("css_sprites.png") -36px 0 no-repeat;}
.hero-actions .btn{padding:8px 0;width:145px;font-size:24px;border-radius:8px;font-weight:500;}
.btn-lg svg{width:17px;height:17px;}
.hero-figure{position:relative;display:grid;place-items:center;margin-top:150px;}
.hero-figure .card-stack{position:relative;width:100%;max-width:451px;aspect-ratio:1/1.03;transition:transform .4s cubic-bezier(.34,1.56,.64,1),box-shadow .4s ease;}
.hero-figure .card-stack:hover{transform:translateY(-12px) scale(1.03) rotate(1deg);}
.hero-figure .sheet{position:absolute;border-radius:12px;border:1px solid var(--green-100);background:#fff;box-shadow:0 8px 30px rgba(0,0,0,.1);overflow:hidden;}
.sheet-1{inset:2% 22% 28% 4%;transform:rotate(-8deg);background:linear-gradient(170deg,#FFFFFF,#F3FAF6);}
.sheet-2{inset:12% 2% 8% 18%;transform:rotate(5deg);}
.sheet-in{padding:20px 18px;}
.sheet-in .ln{height:8px;border-radius:4px;background:var(--green-50);margin-bottom:10px;}
.sheet-in .ln.w1{width:88%;}.sheet-in .ln.w2{width:70%;}.sheet-in .ln.w3{width:80%;}.sheet-in .ln.w4{width:52%;}
.sheet-stamp{position:absolute;top:14px;right:14px;width:42px;height:48px;border-radius:4px;background:var(--green-50);border:1px dashed #A9CDB7;display:grid;place-items:center;}
.sheet-stamp svg{width:20px;height:20px;}
.sheet-photo{height:90px;border-radius:8px;background:linear-gradient(140deg,#D9EDE1,#BFE0CC);margin-bottom:12px;position:relative;overflow:hidden;}
.sheet-photo::after{content:"";position:absolute;inset:auto 0 0 0;height:38%;background:linear-gradient(180deg,rgba(255,255,255,0),rgba(255,255,255,.5));}
.float-badge{position:absolute;background:#fff;border:1px solid var(--line);border-radius:20px;box-shadow:0 4px 16px rgba(0,0,0,.08);padding:8px 14px;font-size:13px;font-weight:500;color:var(--green-700);display:flex;align-items:center;gap:6px;white-space:nowrap;}
.float-badge svg{width:14px;height:14px;color:var(--green-700);flex-shrink:0;}
.fb-1{left:-20px;top:20%;}
.fb-2{right:-16px;bottom:24%;}

/* ---------- 通用区块 ---------- */
section{padding:78px 0 100px 0;}
section.soft{background:#eef8f5;border-top:1px solid var(--line-2);border-bottom:1px solid var(--line-2);}
.sec-head{margin-bottom:40px;}
.sec-label{font-size:14px;letter-spacing:2px;color:var(--green-700);text-transform:uppercase;line-height:1.5;}
.sec-head h2{font-size:36px;font-weight:500;color:var(--ink);letter-spacing:.6px;margin:13px 0 18px;line-height:1.3;}
.sec-head p{color:var(--muted);font-size:18px;}
.sec-head.center{margin-left:auto;margin-right:auto;}

/* 三宫格卖点 */
.value-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px;}
.value-card{background:#fff;border:1px solid transparent;border-radius:var(--radius-max);padding:28px 26px;box-shadow:var(--shadow-m);transition:.22s;display:flex;flex-direction:column;}
.value-card:hover{transform:translateY(-8px);box-shadow:var(--shadow-m);border-color:var(--green-700);}
.value-card .card-header{display:flex;align-items:center;gap:12px;margin-bottom:16px;}
.ico{display:inline-flex;align-items:center;justify-content:center;margin-bottom:0;background:none;border-radius:0;width:auto;height:auto;}
.ico svg{width:22px;height:22px;}
.ico .sprite-icon{width:17px;height:23px;display:inline-block;background:url("css_sprites.png") -19px 0 no-repeat;}
.ico .sprite-icon-2{width:24px;height:21px;display:inline-block;background:url("css_sprites.png") -59px 0 no-repeat;}
.ico .sprite-icon-3{width:19px;height:27px;display:inline-block;background:url("css_sprites.png") 0 0 no-repeat;}
.value-card h3{font-size:28px;font-weight:500;margin-bottom:8px;color:var(--ink);line-height:1.35;}
.value-card p{font-size:18px;color:var(--muted);}

/* 产品卡 */
.prod-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px;}
.prod-card{background:#fff;border:1px solid transparent;border-radius:var(--radius-max);padding:28px 24px;box-shadow:var(--shadow-m);display:flex;flex-direction:column;transition:.22s;}
.prod-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-m);border-color:var(--green-700);}
.prod-top{display:flex;align-items:center;margin-bottom:14px;}
.prod-top .ico{margin:0;width:40px;height:40px;border-radius:11px;}
.prod-top .ico .prod-sprite-icon{width:23px;height:25px;display:inline-block;background:url("css_sprites.png") -210px 0 no-repeat;}
.prod-top .ico .prod-sprite-icon-2{width:23px;height:18px;display:inline-block;background:url("css_sprites.png") -233px 0 no-repeat;}
.prod-top .ico .prod-sprite-icon-3{width:29px;height:20px;display:inline-block;background:url("css_sprites.png") -307px 0 no-repeat;}
.prod-top .ico .prod-sprite-icon-4{width:23px;height:24px;display:inline-block;background:url("css_sprites.png") -256px 0 no-repeat;}
.prod-top .ico .prod-sprite-icon-5{width:28px;height:26px;display:inline-block;background:url("css_sprites.png") -279px 0 no-repeat;}
.prod-top .ico .prod-sprite-icon-6{width:23px;height:21px;display:inline-block;background:url("css_sprites.png") -336px 0 no-repeat;}
.prod-top h3{font-size:28px;font-weight:500;letter-spacing:.2px;line-height:1.35;}
.prod-tag{font-size:14px;font-weight:600;color:var(--gold);background:var(--gold-soft);border-radius:999px;padding:2px 9px;margin-left:auto;white-space:nowrap;line-height:1.5;}
.prod-card .desc{font-size:18px;color:var(--ink-2);margin-bottom:14px;}
.feat{list-style:none;display:flex;flex-direction:column;gap:7px;margin-bottom:25px;}
.feat li{font-size:18px;color:var(--muted);padding-left:24px;position:relative;line-height:1.6;}
.feat li::before{content:"";position:absolute;left:2px;top:8px;width:8px;height:8px;border-radius:50%;background:var(--green-500);}
.price{margin-top:auto;padding-top:14px;border-top:1px dashed var(--line);font-size:18px;color:var(--ink-2);display:flex;justify-content:space-between;align-items:baseline;}
.price b{color:var(--green-700);font-size:24px;font-weight:500;}

/* 步骤 */
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;counter-reset:s;}
.step{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:26px 22px;position:relative;box-shadow:var(--shadow-s);}
.step .num{width:34px;height:34px;border-radius:50%;background:linear-gradient(150deg,var(--green-700),var(--green-800));color:#fff;display:grid;place-items:center;font-weight:700;font-size:15px;margin-bottom:14px;}
.step h4{font-size:24px;font-weight:700;margin-bottom:8px;line-height:1.4;}
.step p{font-size:18px;color:var(--muted);}
.flow{margin-top:26px;background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:24px 26px;box-shadow:var(--shadow-s);}
.flow h4{font-size:24px;font-weight:700;margin-bottom:14px;color:var(--green-800);line-height:1.4;}
.flow-line{display:flex;align-items:center;flex-wrap:wrap;gap:8px;}
.chip{background:var(--green-50);color:var(--green-800);border:1px solid var(--green-100);border-radius:9px;padding:8px 14px;font-size:18px;font-weight:600;}
.arrow{color:var(--green-500);font-weight:700;}
.note{margin-top:40px;font-size:18px;color:#666;background:#FFFBF0;border:none;border-radius:12px;padding:20px 24px;line-height:1.7;}

.guide-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:28px;margin-top:32px;}
.guide-card{background:#fff;border-radius:var(--radius-max);padding:28px 30px 60px 30px;box-shadow:var(--shadow-m);transition:transform .3s ease,box-shadow .3s ease,border-color .3s ease;border:1px solid transparent;}
.guide-card:hover{transform:translateY(-6px);box-shadow:0 12px 32px rgba(16,48,30,.12);border-color:var(--green-700);}
.guide-header{display:flex;align-items:center;justify-content:space-between;margin-bottom:24px;padding-bottom:16px;border-bottom:1px solid var(--line-2);}
.guide-header h3{font-size:22px;font-weight:700;color:var(--ink);display:flex;align-items:center;gap:10px;}
.guide-icon-letter,.guide-icon-postcard{display:inline-block;}
.guide-icon-letter{width:23px;height:25px;background:url("css_sprites.png") -210px 0 no-repeat;}
.guide-icon-postcard{width:29px;height:20px;background:url("css_sprites.png") -307px 0 no-repeat;}
.step-count{background:var(--green-50);color:var(--green-700);border-radius:999px;padding:4px 12px;font-size:13px;font-weight:600;}
.guide-steps{display:flex;flex-direction:column;gap:20px;}
.guide-step{display:flex;gap:14px;align-items:flex-start;}
.step-num{width:28px;height:28px;border-radius:50%;background:linear-gradient(135deg,var(--green-600),var(--green-700));color:#fff;display:flex;align-items:center;justify-content:center;font-size:18px;flex-shrink:0;margin-top:5px;}
.step-content h4{font-size:24px;font-weight:500;color:var(--ink);margin-bottom:4px;line-height:1.5;}
.step-content p{font-size:18px;color:#777;line-height:1.65;}

/* 资费 */
.panel{background:#fff;border-radius:var(--radius-max);overflow:hidden;box-shadow:var(--shadow-m);}
.panel-head{padding:18px 24px;border-bottom:1px solid var(--line-2);display:flex;align-items:center;gap:10px;}
.panel-head h3{font-size:24px;font-weight:500;line-height:1.4;display:flex;align-items:center;gap:4px;}
.fee-icon{width:25px;height:25px;display:inline-block;background:url("css_sprites.png") -359px 0 no-repeat;flex-shrink:0;}
.panel-head .pill{font-size:14px;font-weight:600;color:var(--green-700);background:var(--green-50);border-radius:999px;padding:3px 10px;margin-left:auto;line-height:1.5;}
table{width:100%;border-collapse:collapse;}
th,td{text-align:left;padding:14px 24px;font-size:18px;border-bottom:1px solid var(--line-2);vertical-align:top;}
th{background:#FAFCFB;font-size:24px;font-weight:500;color:var(--ink-2);letter-spacing:.4px;line-height:1.5;}
tbody tr:last-child td{border-bottom:0;}
tbody tr:hover td{background:#FCFEFD;}
td.money{color:var(--green-700);font-weight:500;white-space:nowrap;}

/* 合并后的资费总表 */
.fee-table{margin:0 auto;}
.fee-table tr.grp td{background:#ecfdf5;color:var(--green-700);font-size:24px;font-weight:500;letter-spacing:.7px;padding:9px 24px;border-bottom:1px solid var(--green-100);line-height:1.5;}
.fee-table tbody tr.grp:hover td{background:var(--green-50);}
.pstack{display:inline-flex;flex-direction:column;gap:3px;color:var(--green-700);font-weight:500;white-space:nowrap;}

/* 场景 */
.scene-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:20px;}
.scene{background:#fff;border:1px solid transparent;border-radius:var(--radius-max);padding:24px 22px;box-shadow:var(--shadow-m);transition:.2s;}
.scene:hover{transform:translateY(-12px);box-shadow:var(--shadow-m);border-color:var(--green-700);}
.scene h3{font-size:28px;font-weight:500;margin-bottom:10px;display:flex;align-items:center;gap:9px;line-height:1.35;}
.scene h3 .dot{width:8px;height:8px;border-radius:50%;background:var(--green-500);flex-shrink:0;}
.scene p{font-size:18px;color:var(--muted);margin-bottom:12px;}
.scene .tags{display:flex;flex-wrap:wrap;gap:6px;}
.tag{font-size:14px;color:var(--green-700);background:var(--green-50);border:1px solid var(--green-100);border-radius:20px;padding:3px 9px;line-height:1.5;}

/* 优势 */
.adv-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:18px;}
.adv{display:flex;flex-direction:column;background:#fff;border:1px solid transparent;border-radius:var(--radius-max);padding:28px 26px;box-shadow:var(--shadow-m);transition:.22s;}
.adv:hover{transform:translateY(-4px);box-shadow:var(--shadow-m);border-color:var(--green-700);}
.adv .adv-top{display:flex;align-items:center;margin-bottom:4px;}
.adv .adv-top .ico .adv-sprite-icon-1{width:21px;height:24px;display:inline-block;background:url("css_sprites.png") -384px -0px no-repeat;margin-top:-8px;margin-right:6px;}
.adv .adv-top .ico .adv-sprite-icon-2{width:27px;height:19px;display:inline-block;background:url("css_sprites.png") -405px -0px no-repeat;margin-top:-8px;margin-right:6px;}
.adv .adv-top .ico .adv-sprite-icon-3{width:23px;height:14px;display:inline-block;background:url("css_sprites.png") -432px -0px no-repeat;margin-top:-8px;margin-right:6px;}
.adv .adv-top .ico .adv-sprite-icon-4{width:28px;height:20px;display:inline-block;background:url("css_sprites.png") -455px -0px no-repeat;margin-top:-8px;margin-right:6px;}
.adv .adv-top .ico .adv-sprite-icon-5{width:15px;height:17px;display:inline-block;background:url("css_sprites.png") -483px -0px no-repeat;margin-top:-8px;margin-right:6px;}
.adv .adv-top .ico .adv-sprite-icon-6{width:21px;height:21px;display:inline-block;background:url("css_sprites.png") -83px -0px no-repeat;margin-top:-8px;margin-right:6px;}
.adv .adv-top .ico .adv-sprite-icon-7{width:27px;height:22px;display:inline-block;background:url("css_sprites.png") -104px -0px no-repeat;margin-top:-8px;margin-right:6px;}
.adv .adv-top .ico .adv-sprite-icon-8{width:23px;height:22px;display:inline-block;background:url("css_sprites.png") -131px -0px no-repeat;margin-top:-8px;margin-right:6px;}
.adv .adv-top .ico svg{width:22px;height:22px;color:var(--green-700);}
.adv h4{font-size:24px;font-weight:500;margin-bottom:10px;line-height:1.4;color:var(--ink);}
.adv p{font-size:18px;color:var(--muted);line-height:1.65;padding-left:30px;}

/* 信件安全与隐私保障条 */
.safe-band{margin-top:28px;background:#18ad65;padding:40px 44px 32px;box-shadow:var(--shadow-m);color:#fff;border-radius:var(--radius-max)}
.safe-top{display:flex;flex-direction:column;gap:8px;padding-bottom:32px;}
.safe-top h3{font-size:28px;font-weight:500;letter-spacing:.5px;color:#fff;line-height:1.4;}
.safe-top p{font-size:18px;line-height:1.6;}
.safe-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:20px;}
.safe-item{background:#17a661;border:1.5px solid #fff;border-radius:16px;padding:24px 24px 22px;transition:.22s;}
.safe-item:hover{background:rgba(255,255,255,.1);border-color:rgba(255,255,255,.35);}
.safe-item h4{font-size:24px;font-weight:500;color:#fff;margin-bottom:10px;display:flex;align-items:center;gap:10px;line-height:1.4;}
.safe-item h4::before{content:"";width:8px;height:8px;border-radius:50%;background:#fdd54f;flex-shrink:0;}
.safe-item p{font-size:18px;color:#fff;line-height:1.75;}
.safe-note{margin-top:24px;font-size:14px;line-height:1.6;}


/* 关于我们 */
.about-grid{display:flex;flex-direction:column;gap:24px;margin-top:8px;}
.quote{background:#fff;border-radius:var(--radius-max);padding:32px 36px;box-shadow:var(--shadow-m);}
.quote p{font-size:18px;line-height:1.9;text-align:justify;}
.info-list{list-style:none;background:#fff;border-radius:var(--radius-max);overflow:hidden;box-shadow:var(--shadow-m);}
.info-list li{display:grid;grid-template-columns:100px 1fr;gap:20px;padding:18px 28px;border-bottom:1px solid var(--line-2);font-size:18px;align-items:start;}
.info-list li:last-child{border-bottom:0;}
.info-list li span:first-child{color:var(--muted);font-size:18px;white-space:nowrap;}
.info-list li span:last-child{line-height:1.6;}

/* FAQ */
.faq{margin:0 auto;display:flex;flex-direction:column;gap:12px;}
.qa{background:#fff;border:1px solid var(--line);border-radius:var(--radius-sm);overflow:hidden;box-shadow:var(--shadow-s);}
.qa summary{cursor:pointer;list-style:none;padding:19px 24px;font-size:24px;font-weight:500;display:flex;align-items:center;gap:14px;color:var(--ink);}
.qa summary::-webkit-details-marker{display:none;}
.qa summary .q{color:var(--green-700);font-weight:500;font-size:24px;flex-shrink:0;line-height:1.5;}
.qa summary .pm{margin-left:auto;color:var(--green-700);transition:.2s;flex-shrink:0;}
.qa[open] summary .pm{transform:rotate(45deg);}
.qa .a{padding:0 24px 20px 24px;font-size:18px;color:var(--muted);border-top:1px solid var(--line-2);padding-top:16px;}

/* 底部 */
footer{background:var(--green-700);color:#CFE3D7;padding:60px 0 40px;}
.foot-grid{display:grid;grid-template-columns:1.5fr repeat(3,1fr);gap:48px;padding-bottom:40px;border-bottom:1px solid rgba(255,255,255,.15);}
.foot-brand{display:flex;align-items:center;gap:12px;margin-bottom:18px;}
.foot-brand .brand-mark{width:60px;height:59px;display:flex;align-items:center;justify-content:center;}
.foot-brand strong{color:#fff;font-size:20px;letter-spacing:1.5px;font-weight:700;}
footer p.fdesc{font-size:18px;color:#fff;line-height:1.8;max-width:380px;margin-bottom:0;}
footer h5{color:#fff;font-size:24px;font-weight:500;margin-bottom:18px;letter-spacing:.8px;}
footer ul{list-style:none;display:flex;flex-direction:column;gap:10px;}
footer ul a{font-size:18px;color:#a9e1c6;transition:.2s;}
footer ul a:hover{color:#fff;}
.foot-bottom{padding-top:28px;text-align:center;font-size:14px;color:#fff;line-height:2;}
.foot-bottom span{display:block;margin-bottom:4px;}

/* 回到顶部 */
.totop{position:fixed;right:26px;bottom:28px;width:44px;height:44px;border-radius:50%;background:#fff;border:1px solid var(--line);box-shadow:var(--shadow-m);display:grid;place-items:center;color:var(--green-700);cursor:pointer;opacity:0;visibility:hidden;transition:.25s;z-index:70;}
.totop.show{opacity:1;visibility:visible;}
.totop svg{width:18px;height:18px;}

/* ========== 移动端响应式适配 ========== */
@media(max-width:768px){
  html{scroll-padding-top:70px;}

  .wrap{padding:0 16px;}

  /* 导航 */
  .nav{height:60px;gap:20px;}
  .menu-toggle{display:flex;align-items:center;justify-content:center;}
  nav.menu{
    display:none;
    position:absolute;top:100%;left:0;right:0;background:#fff;
    flex-direction:column;padding:16px;gap:4px;
    border-bottom:1px solid var(--line);box-shadow:var(--shadow-m);
  }
  nav.menu.open{display:flex;}
  nav.menu a{padding:12px 16px;font-size:15px;}

  /* Hero */
  .hero{margin-top:0px;background-size:200% auto,cover;background-position:top center,center;}
  .hero-inner{
    grid-template-columns:1fr;gap:32px;padding-bottom:60px;text-align:center;
  }
  .hero h1{font-size:36px;letter-spacing:3px;}
  .hero h1 em{font-size:18px;letter-spacing:1.5px;}
  .hero p.lead{font-size:16px;max-width:none;margin:16px auto 0;}
  .hero-actions{justify-content:center;margin-top:40px;}
  .hero-wx-tip{justify-content:center;font-size:13px;margin-top:12px;}
  .hero-figure{margin-top:40px;}
  .hero-figure .card-stack{max-width:320px;}

  /* 通用区块 */
  section{padding:48px 0 64px;}
  .sec-head h2{font-size:26px;letter-spacing:.3px;}
  .sec-head p{font-size:16px;}

  /* 三宫格 */
  .value-grid{grid-template-columns:1fr;gap:16px;}
  .value-card{padding:24px 20px;}

  /* 产品卡 */
  .prod-grid{grid-template-columns:1fr;gap:16px;}
  .prod-card{padding:24px 20px;}

  /* 步骤 */
  .steps{grid-template-columns:1fr 1fr;gap:16px;}
  .step{padding:20px 16px;}

  /* 流程标签 */
  .flow-line{flex-direction:column;align-items:flex-start;}

  /* 使用指南 */
  .guide-grid{grid-template-columns:1fr;gap:20px;}
  .guide-card{padding:24px 20px 48px 20px;}

  /* 价格表 */
  .panel{overflow-x:auto;-webkit-overflow-scrolling:touch;}
  table{min-width:600px;font-size:16px;}
  th,td{padding:10px 16px;font-size:16px;}
  th{font-size:18px;}

  /* 场景 */
  .scene-grid{grid-template-columns:1fr;gap:16px;}

  /* 优势 */
  .adv-grid{grid-template-columns:1fr;gap:16px;}
  .adv{padding:24px 20px;}
  .adv p{padding-left:0;}

  /* 安全保障 */
  .safe-band{margin-top:20px;padding:28px 20px 24px;}
  .safe-grid{grid-template-columns:1fr;gap:16px;}
  .safe-item{padding:20px 16px 18px;}

  /* 关于我们 */
  .quote{padding:24px 20px;}
  .info-list li{grid-template-columns:80px 1fr;gap:12px;padding:14px 20px;font-size:16px;}
  .info-list li span:first-child{font-size:14px;}

  /* FAQ */
  .qa summary{padding:16px 20px;font-size:18px;flex-wrap:wrap;}
  .qa summary .q,.qa summary .pm{font-size:18px;}
  .qa .a{padding:0 20px 16px 20px;font-size:16px;padding-top:12px;}

  /* 微信入口 */
  .wx-card{padding:24px 20px 20px;margin:20px auto 0;}
  .wx-qrs{grid-template-columns:1fr;gap:24px;}
  .wx-qr-item + .wx-qr-item{border-left:none;border-top:1px dashed var(--line);padding-left:0;margin-left:0;padding-top:24px;}
  .qr-code{width:240px;height:240px;}
  .wx-qr-item .qr-desc{width:auto;font-size:16px;}
  .qr-steps li{font-size:16px;}

  /* 页脚 */
  footer{padding:40px 0 28px;}
  .foot-grid{grid-template-columns:1fr;gap:32px;padding-bottom:28px;}
  footer h5{font-size:20px;margin-bottom:14px;}
  footer ul a{font-size:16px;}
  .foot-bottom{font-size:12px;padding-top:20px;}

  /* 回到顶部 */
  .totop{right:16px;bottom:16px;width:40px;height:40px;}
}

@media(max-width:480px){
  .hero h1{font-size:30px;letter-spacing:2px;}
  .hero h1 em{font-size:16px;}
  .sec-head h2{font-size:22px;}
  .value-card h3,.prod-card h3,.scene h3{font-size:22px;}
  .steps{grid-template-columns:1fr;}
  .qr-code{width:200px;height:200px;}
}