/* ld- 账本模板 · calibrer.cn（A站）暖金账房系 */
:root{
  --paper:#fdf6ea; --card:#fffdf6; --ink:#2b2118; --mute:#7a6a58;
  --ac:#e8930c; --acd:#b96a00; --soft:#f6e8cd; --line:#e0cda8;
  --sh:2px 2px 0 rgba(43,33,24,.16);
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;color:var(--ink);line-height:1.75;font-family:"PingFang SC","Microsoft YaHei",sans-serif;
  background:radial-gradient(1000px 500px at 85% -80px,#ffe9bd66,transparent 60%),var(--paper)}
a{color:inherit;text-decoration:none}
img{display:block;max-width:100%}
h1,h2,h3,p,ul,figure{margin:0;padding:0}
ul{list-style:none}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer}
.sr-only{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0)}
.shell{width:min(1180px,calc(100% - 40px));margin:0 auto}
.kick{font-size:12px;letter-spacing:.18em;font-weight:800;color:var(--acd);text-transform:uppercase}
.shead h2{font-size:clamp(24px,3.4vw,36px);margin:8px 0 6px;letter-spacing:-.01em}
.shead p{color:var(--mute);max-width:760px}
.sec{padding:56px 0}
.btn{display:inline-block;padding:13px 26px;font-weight:800;font-size:15px;border:2px solid var(--ink);box-shadow:var(--sh);transition:transform .15s,box-shadow .15s}
.btn:hover{transform:translate(-1px,-1px);box-shadow:3px 3px 0 rgba(43,33,24,.22)}
.btn-main,.btn-seal{background:var(--ac);color:#fff}
.btn-ghost{background:var(--card)}

/* 顶栏 */
.ld-hd{position:sticky;top:0;z-index:30;background:#fdf6eaee;backdrop-filter:blur(6px);border-bottom:1px solid var(--line)}
.ld-hdin{display:flex;align-items:center;gap:18px;padding:10px 0}
.ld-brand{display:flex;align-items:center;gap:10px}
.ld-brand img{border-radius:10px;box-shadow:var(--sh)}
.ld-brand strong{font-size:17px;display:block;line-height:1.2}
.ld-brand small{color:var(--mute);font-size:11px}
.ld-nav{margin-left:auto}
.ld-nav ul{display:flex;gap:2px}
.ld-nav a{padding:8px 12px;font-size:14px;font-weight:700;color:var(--mute);border-radius:8px}
.ld-nav a:hover,.ld-nav a.is-current{color:var(--ink);background:var(--soft)}
.ld-cta{padding:9px 16px;background:var(--ink);color:#fff;font-size:13px;font-weight:800;border-radius:10px;box-shadow:var(--sh)}
.ld-cta:hover{background:var(--acd)}
.ld-tools{display:flex;align-items:center;gap:8px}
.ld-burger{display:none;width:38px;height:38px;border:2px solid var(--ink);border-radius:9px;position:relative}
.ld-burger span:not(.sr-only){position:absolute;left:9px;right:9px;top:11px;height:2px;background:var(--ink);box-shadow:0 6px 0 var(--ink),0 12px 0 var(--ink)}

/* 英雄区 */
.ld-hero{padding:48px 0 30px}
.ld-heroin{display:grid;grid-template-columns:1.05fr .95fr;gap:36px;align-items:center}
.ld-h1{font-size:clamp(40px,5.6vw,66px);line-height:1.02;letter-spacing:-.04em;margin:10px 0 14px}
.ld-lead{color:var(--mute);max-width:540px}
.ld-acts{display:flex;gap:12px;margin:22px 0 16px;flex-wrap:wrap}
.ld-chips{display:flex;gap:8px;flex-wrap:wrap}
.ld-chips span{font-size:12px;font-weight:700;color:var(--acd);background:var(--soft);border:1px dashed var(--line);padding:5px 11px;border-radius:999px}
.ld-phonewrap{position:relative;display:flex;justify-content:center}
.ld-phone{width:min(300px,72%);border:3px solid var(--ink);border-radius:28px;overflow:hidden;box-shadow:10px 12px 0 rgba(43,33,24,.14);background:#fff;transform:rotate(1.5deg)}
.ld-phone img{width:100%;height:520px;object-fit:cover}
.ld-float{position:absolute;background:var(--card);border:2px solid var(--ink);box-shadow:var(--sh);padding:9px 13px;font-size:12px;font-weight:800;border-radius:10px;z-index:2}
.ld-float.a{top:8%;left:0;transform:rotate(-3deg)}
.ld-float.b{bottom:10%;right:0;transform:rotate(2.5deg);background:var(--soft)}

/* 数据条 */
.ld-counts{padding:8px 0 20px}
.ld-counts-t{text-align:center;color:var(--mute);font-size:14px;margin-bottom:14px}
.ld-cgrid{display:grid;grid-template-columns:repeat(4,1fr);gap:12px}
.ld-stat{background:var(--card);border:2px solid var(--ink);box-shadow:var(--sh);border-radius:14px;text-align:center;padding:16px 8px}
.ld-stat strong{display:block;font-size:26px;color:var(--acd)}
.ld-stat span{font-size:12px;color:var(--mute)}

/* 功能货架 */
.ld-shelf{display:grid;grid-template-columns:repeat(3,1fr);gap:14px;margin-top:26px}
.ld-item{position:relative;background:var(--card);border:2px solid var(--ink);box-shadow:var(--sh);border-radius:14px;padding:20px 18px 16px;transition:transform .15s}
.ld-item:hover{transform:translateY(-4px)}
.ld-item:nth-child(3n+2){background:var(--soft)}
.ld-no{font-size:11px;font-weight:800;letter-spacing:.14em;color:var(--ac)}
.ld-item h3{font-size:17px;margin:6px 0}
.ld-item p{font-size:13.5px;color:var(--mute)}
.ld-seal{position:absolute;top:14px;right:14px;font-size:10px;font-weight:800;color:var(--acd);border:1.5px solid var(--ac);border-radius:6px;padding:2px 6px;transform:rotate(6deg);opacity:.8}

/* 内容实拍 */
.ld-rack{display:grid;grid-template-columns:1.05fr 1fr;gap:14px;margin-top:26px}
.ld-rack figure{margin:0;background:var(--card);border:2px solid var(--ink);box-shadow:var(--sh);border-radius:14px;overflow:hidden}
.ld-rack img{width:100%;object-fit:cover}
.ld-rack .big img{height:520px}
.ld-grid4{display:grid;grid-template-columns:1fr 1fr;gap:14px}
.ld-grid4 img{height:244px}
.ld-cap{font-size:12px;font-weight:700;padding:8px 10px;border-top:2px solid var(--ink);background:var(--soft)}
.ld-rail{display:none;text-align:center;color:var(--mute);font-size:13px;margin-top:12px}

/* 上账四步 */
.ld-ledger{margin-top:26px;border:2px solid var(--ink);border-radius:14px;overflow:hidden;box-shadow:var(--sh)}
.ld-row{display:grid;grid-template-columns:130px 170px 1fr;gap:16px;align-items:baseline;background:var(--card);padding:16px 20px;border-bottom:2px dashed var(--line)}
.ld-row:last-child{border-bottom:0}
.ld-row:nth-child(even){background:var(--soft)}
.ld-date{font-size:12px;font-weight:800;letter-spacing:.12em;color:var(--acd)}
.ld-row h3{font-size:16px}
.ld-row p{font-size:13.5px;color:var(--mute)}

/* 对比表 */
.ld-tablewrap{margin-top:26px;overflow-x:auto;border:2px solid var(--ink);border-radius:14px;box-shadow:var(--sh);background:var(--card)}
.ld-table{width:100%;border-collapse:collapse;font-size:13.5px;min-width:640px}
.ld-table th,.ld-table td{padding:12px 14px;border-bottom:1px solid var(--line);text-align:left}
.ld-table thead th{background:var(--ink);color:#fff;font-size:13px}
.ld-table .hl{background:var(--soft);font-weight:800;color:var(--acd)}
.ld-table tbody tr:last-child td{border-bottom:0}

/* FAQ */
.ld-faqs{margin-top:26px;display:grid;gap:10px}
.ld-faq{background:var(--card);border:2px solid var(--ink);box-shadow:var(--sh);border-radius:12px;overflow:hidden}
.ld-fq{width:100%;display:flex;justify-content:space-between;align-items:center;gap:12px;padding:15px 18px;font-weight:800;font-size:15px;text-align:left}
.ld-fq i{font-style:normal;color:var(--acd);transition:transform .2s}
.ld-faq.open .ld-fq{background:var(--soft)}
.ld-faq.open .ld-fq i{transform:rotate(180deg)}
.ld-fa{display:none;padding:0 18px 16px;color:var(--mute);font-size:13.5px}
.ld-faq.open .ld-fa{display:block}
.ld-faqnote{margin-top:14px;font-size:12px;color:var(--mute)}

/* 用户小票 */
.ld-voices{display:grid;grid-template-columns:repeat(3,1fr);gap:14px;margin-top:26px}
.ld-bill{background:var(--card);border:1px solid var(--line);border-bottom:2px dashed var(--ac);padding:18px;box-shadow:0 8px 20px rgba(43,33,24,.08);border-radius:4px;transition:transform .15s}
.ld-bill:hover{transform:translateY(-4px)}
.ld-bill:nth-child(3n+1){transform:rotate(-.6deg)}
.ld-bill:nth-child(3n+3){transform:rotate(.6deg)}
.ld-bill .stars{color:var(--ac);letter-spacing:2px;font-size:14px}
.ld-bill .txt{font-size:13.5px;color:var(--ink);margin:8px 0 12px}
.ld-bill footer{font-size:12px;color:var(--mute);border-top:1px dashed var(--line);padding-top:8px}

/* 下载 */
.ld-get{display:grid;grid-template-columns:1.4fr .6fr;gap:24px;align-items:center;background:var(--ink);color:#fdf6ea;border-radius:18px;padding:34px 30px;box-shadow:6px 6px 0 rgba(43,33,24,.2)}
.ld-get .kick{color:var(--ac)}
.ld-get h2{font-size:clamp(24px,3vw,34px);margin:8px 0 10px}
.ld-get p{opacity:.85;font-size:14px;max-width:640px}
.ld-get .btn-seal{border-color:#fdf6ea;box-shadow:2px 2px 0 rgba(255,255,255,.25);margin-top:16px}
.upd{margin-top:12px;font-size:12px;opacity:.6}
.ld-tag{background:var(--card);color:var(--ink);border:2px solid var(--ac);border-radius:14px;text-align:center;padding:22px 14px;transform:rotate(2deg)}
.ld-tag img{margin:0 auto 8px;border-radius:14px}
.ld-tag strong{display:block;font-size:18px}
.ld-tag span{display:block;font-size:11px;color:var(--mute);margin-top:3px}

/* 页脚 */
.ld-foot{background:#241b12;color:#cbbca8;padding:40px 0 0;margin-top:20px}
.ld-fgrid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:20px}
.ld-fbrand{display:flex;align-items:center;gap:8px;font-weight:800;color:#fdf6ea;font-size:16px;margin-bottom:8px}
.ld-fbrand img{border-radius:8px}
.ld-foot p{font-size:12.5px;opacity:.75;max-width:320px}
.ld-foot h4{margin:0 0 8px;font-size:13px;color:#fdf6ea}
.ld-foot ul li{margin:5px 0;font-size:12.5px}
.ld-foot ul a:hover{color:var(--ac)}
.ld-fbottom{border-top:1px solid #3a2e20;margin-top:26px;padding:14px 0 20px;text-align:center;font-size:12px;opacity:.6}

/* 返回顶部 */
#backTop{position:fixed;right:22px;bottom:24px;z-index:25;width:44px;height:44px;border-radius:50%;background:var(--ac);color:#fff;font-size:20px;font-weight:800;display:flex;align-items:center;justify-content:center;border:2px solid var(--ink);box-shadow:var(--sh);opacity:0;pointer-events:none;transition:opacity .2s}
#backTop.show{opacity:1;pointer-events:auto}

@media (max-width:900px){
  .ld-nav{display:none;position:absolute;left:0;right:0;top:100%;background:var(--paper);border-bottom:2px solid var(--ink);padding:10px 20px}
  .ld-nav.open{display:block}
  .ld-nav ul{flex-direction:column}
  .ld-burger{display:block}
  .ld-cta.hd{display:none}
  .ld-heroin{grid-template-columns:1fr}
  .ld-phonewrap{order:2}
  .ld-cgrid{grid-template-columns:1fr 1fr}
  .ld-shelf,.ld-voices{grid-template-columns:1fr}
  .ld-rack{display:flex;overflow-x:auto;scroll-snap-type:x mandatory;gap:12px;padding-bottom:8px}
  .ld-rack figure{flex:0 0 72%;scroll-snap-align:center}
  .ld-rack .big img,.ld-grid4 img{height:400px}
  .ld-grid4{display:contents}
  .ld-rail{display:block}
  .ld-row{grid-template-columns:1fr;gap:4px}
  .ld-get{grid-template-columns:1fr}
  .ld-tag{transform:none;max-width:280px}
  .ld-fgrid{grid-template-columns:1fr 1fr}
  .ld-phone img{height:440px}
}
@media (prefers-reduced-motion:reduce){
  *{animation:none!important;transition:none!important}
  html{scroll-behavior:auto}
}