/* 会计工具箱 · 前台样式 */
:root{
  --primary:#2468f2; --primary-2:#4c8bf5; --primary-bg:#eef4ff; --primary-dark:#1a56d6;
  --text:#1f2329; --text-2:#646a73; --text-3:#8f959e;
  --line:#e8eaed; --bg:#f5f7fa; --card:#fff;
  --orange:#ff7d00; --green:#00b578; --red:#f53f3f; --purple:#7b61ff;
  --side-w:232px; --radius:12px;
}
*{box-sizing:border-box;margin:0;padding:0}
html{-webkit-text-size-adjust:100%}
body{font:14px/1.6 -apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei","Helvetica Neue",sans-serif;color:var(--text);background:var(--bg)}
a{color:inherit;text-decoration:none}
button,input,select,textarea{font:inherit;color:inherit}
button{cursor:pointer}
img{max-width:100%}
[hidden]{display:none!important}

/* ---------- 左侧导航 ---------- */
.side{position:fixed;left:0;top:0;bottom:0;width:var(--side-w);background:#fff;border-right:1px solid var(--line);display:flex;flex-direction:column;z-index:30;transition:transform .25s}
.logo{height:60px;display:flex;align-items:center;gap:10px;padding:0 20px;border-bottom:1px solid var(--line);font-weight:700;font-size:17px;flex-shrink:0}
.logo i{width:32px;height:32px;border-radius:8px;background:linear-gradient(135deg,#2468f2,#5b9bff);color:#fff;display:grid;place-items:center;font-style:normal;font-size:16px;flex-shrink:0}
.logo img{height:32px;width:auto}
.logo small{display:block;font-size:11px;color:var(--text-3);font-weight:400;line-height:1.2}
.nav{flex:1;overflow-y:auto;padding:10px 10px 20px;scrollbar-width:thin}
.nav-item{display:flex;align-items:center;gap:10px;padding:9px 12px;border-radius:8px;color:var(--text-2);cursor:pointer;user-select:none}
.nav-item:hover{background:var(--bg);color:var(--text)}
.nav-item.on{background:var(--primary-bg);color:var(--primary);font-weight:600}
.nav-item .ic{width:18px;text-align:center;flex-shrink:0}
.nav-item .arr{margin-left:auto;font-size:9px;color:var(--text-3);transition:transform .2s}
.nav-group.open .arr{transform:rotate(90deg)}
.nav-sub{display:none;padding:2px 0 6px 28px}
.nav-group.open .nav-sub{display:block}
.nav-sub a{display:block;padding:6px 12px;border-radius:6px;color:var(--text-2);font-size:13px}
.nav-sub a:hover{color:var(--primary)}
.nav-sub a.on{color:var(--primary);background:var(--primary-bg);font-weight:500}
.nav-sub .hot{font-size:10px;color:#fff;background:var(--orange);border-radius:3px;padding:0 4px;margin-left:4px;vertical-align:1px}
.nav-sub .hot.new{background:var(--green)}
.nav-title{font-size:12px;color:var(--text-3);padding:14px 12px 6px}
.side-foot{padding:12px 20px;border-top:1px solid var(--line);font-size:12px;color:var(--text-3)}
.side-foot a:hover{color:var(--primary)}

/* ---------- 主区域与顶栏 ---------- */
.main{margin-left:var(--side-w);min-height:100vh;display:flex;flex-direction:column}
.top{height:60px;background:#fff;border-bottom:1px solid var(--line);display:flex;align-items:center;padding:0 24px;gap:16px;position:sticky;top:0;z-index:20}
.burger{display:none;border:0;background:none;font-size:22px;line-height:1;padding:4px}
.crumb{color:var(--text-3);font-size:13px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.crumb a:hover{color:var(--primary)}
.crumb b{color:var(--text);font-weight:500}
.search{margin-left:auto;display:flex;align-items:center;background:var(--bg);border-radius:8px;padding:0 12px;width:340px;height:36px;border:1px solid transparent;position:relative;flex-shrink:1}
.search:focus-within{border-color:var(--primary);background:#fff}
.search input{border:0;background:none;outline:0;flex:1;margin-left:6px;min-width:0}
.suggest{position:absolute;left:0;right:0;top:40px;background:#fff;border:1px solid var(--line);border-radius:10px;box-shadow:0 10px 30px rgba(0,0,0,.1);overflow:hidden;z-index:40}
.suggest a{display:flex;gap:10px;align-items:center;padding:9px 12px;font-size:13px}
.suggest a:hover,.suggest a.active{background:var(--primary-bg)}
.suggest .ico{width:26px;height:26px;border-radius:6px;display:grid;place-items:center;font-size:12px;font-weight:700;flex-shrink:0}
.suggest small{display:block;color:var(--text-3);font-size:11px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.suggest .none{padding:12px;color:var(--text-3);font-size:13px}
.top-link{color:var(--text-2);font-size:13px;white-space:nowrap;border:0;background:none}
.top-link:hover{color:var(--primary)}
.content{padding:24px;flex:1;width:100%;max-width:1440px}
.foot{padding:18px 24px;color:var(--text-3);font-size:12px;border-top:1px solid var(--line);background:#fff;display:flex;justify-content:space-between;flex-wrap:wrap;gap:8px}
.foot .links a{margin-left:10px}
.foot a:hover{color:var(--primary)}

/* ---------- 通用 ---------- */
.btn{height:36px;padding:0 16px;border-radius:8px;border:1px solid var(--line);background:#fff;color:var(--text-2);display:inline-flex;align-items:center;justify-content:center;gap:4px;white-space:nowrap;transition:.15s}
.btn:hover{border-color:var(--primary);color:var(--primary)}
.btn.pri{background:var(--primary);border-color:var(--primary);color:#fff}
.btn.pri:hover{background:var(--primary-dark);color:#fff}
.btn.sm{height:28px;padding:0 10px;font-size:12px}
.btn.on{color:var(--orange);border-color:#ffd8b3;background:#fff7ef}
.link-btn{border:0;background:none;color:var(--primary);font-size:13px}
.panel{background:#fff;border-radius:var(--radius);border:1px solid var(--line);padding:22px;margin-bottom:20px}
.c1{background:#eef4ff;color:#2468f2}.c2{background:#fff1e6;color:#ff7d00}.c3{background:#e8faf2;color:#00a870}
.c4{background:#f3efff;color:#7b61ff}.c5{background:#ffecec;color:#f53f3f}.c6{background:#e6f7fb;color:#0fa3c4}

/* ---------- 首页 ---------- */
.hero{background:linear-gradient(120deg,#2468f2 0%,#4c8bf5 55%,#7fb0ff 100%);border-radius:14px;color:#fff;padding:32px 36px;position:relative;overflow:hidden;margin-bottom:24px}
.hero h1{font-size:26px;margin-bottom:6px;position:relative}
.hero p{opacity:.92;position:relative;max-width:640px}
.hero .stats{display:flex;gap:40px;margin-top:20px;position:relative}
.hero .stats b{font-size:22px;display:block}
.hero .stats span{font-size:12px;opacity:.85}
.hero::after{content:"¥";position:absolute;right:40px;top:-40px;font-size:220px;font-weight:800;opacity:.08;line-height:1.2}
.sec{margin-bottom:26px}
.sec-h{display:flex;align-items:center;margin-bottom:12px;gap:10px}
.sec-h h2{font-size:17px;display:flex;align-items:center;gap:8px}
.sec-h h2::before{content:"";width:4px;height:16px;background:var(--primary);border-radius:2px}
.sec-tip{margin-left:auto;color:var(--text-3);font-size:13px}
.sec-h .link-btn{margin-left:auto}
.tabs{display:flex;gap:8px;margin-bottom:14px;flex-wrap:wrap}
.tabs button{padding:5px 14px;border-radius:16px;background:#fff;border:1px solid var(--line);font-size:13px;color:var(--text-2)}
.tabs button:hover{color:var(--primary)}
.tabs button.on{background:var(--primary);border-color:var(--primary);color:#fff}
.grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(250px,1fr));gap:14px}
.card{background:var(--card);border-radius:var(--radius);padding:16px;border:1px solid var(--line);display:flex;gap:12px;transition:.2s;position:relative;min-width:0}
.card:hover{border-color:var(--primary-2);box-shadow:0 6px 20px rgba(36,104,242,.12);transform:translateY(-2px)}
.card .ico{width:44px;height:44px;border-radius:10px;display:grid;place-items:center;font-size:18px;flex-shrink:0;font-weight:700}
.card-body{min-width:0}
.card h3{font-size:15px;margin-bottom:2px;padding-right:30px}
.card p{color:var(--text-3);font-size:12px;line-height:1.5;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.card .meta{font-size:11px;color:var(--text-3);margin-top:6px}
.tag{position:absolute;right:10px;top:10px;font-size:10px;padding:0 6px;border-radius:4px;line-height:18px}
.tag.hot{background:#fff1e6;color:var(--orange)}
.tag.new{background:#e8faf2;color:var(--green)}
.recent{display:flex;gap:10px;flex-wrap:wrap}
.recent a{background:#fff;border:1px solid var(--line);padding:6px 14px;border-radius:8px;font-size:13px}
.recent a:hover{color:var(--primary);border-color:var(--primary)}
.cat-head{display:flex;gap:14px;align-items:center;margin-bottom:20px}
.cat-head .ico{width:52px;height:52px;border-radius:12px;display:grid;place-items:center;font-size:24px}
.cat-head h1{font-size:21px}
.cat-head p{color:var(--text-3);font-size:13px}
.empty{background:#fff;border:1px dashed var(--line);border-radius:var(--radius);padding:40px;text-align:center;color:var(--text-3)}
.error-page{text-align:center;padding:80px 20px}
.error-page .code{font-size:80px;font-weight:800;color:var(--primary);opacity:.25;line-height:1}
.error-page p{color:var(--text-2);margin:14px 0 24px}

/* ---------- 工具页 ---------- */
.tool-wrap{display:grid;grid-template-columns:minmax(0,1fr) 280px;gap:20px;align-items:start}
.tool-head{display:flex;gap:14px;align-items:center;margin-bottom:20px}
.tool-head .ico{width:52px;height:52px;border-radius:12px;display:grid;place-items:center;font-size:22px;font-weight:700;flex-shrink:0}
.tool-title{min-width:0}
.tool-head h1{font-size:21px;line-height:1.3}
.tool-head p{color:var(--text-3);font-size:13px}
.tool-head .act{margin-left:auto;display:flex;gap:8px}
.tool-form{display:grid;grid-template-columns:repeat(6,minmax(0,1fr));gap:0 16px}
.field{grid-column:span 6;margin-bottom:16px;min-width:0}
.field.w-half{grid-column:span 3}
.field.w-third{grid-column:span 2}
.field>label{display:block;font-size:13px;color:var(--text-2);margin-bottom:6px;font-weight:500}
.field-seg{margin-bottom:20px}
.inp-wrap{position:relative}
.inp{width:100%;height:40px;border:1px solid #d9dce1;border-radius:8px;padding:0 12px;font-size:14px;outline:0;background:#fff;transition:border-color .15s,box-shadow .15s}
.inp:focus{border-color:var(--primary);box-shadow:0 0 0 3px rgba(36,104,242,.12)}
.inp.lg{height:48px;font-size:18px;padding:0 14px}
textarea.inp{height:auto;padding:10px 12px;line-height:1.6;resize:vertical;font-family:inherit}
select.inp{padding-right:28px}
.has-suffix .inp{padding-right:44px}
.suffix{position:absolute;right:12px;top:50%;transform:translateY(-50%);color:var(--text-3);font-size:13px;pointer-events:none}
.hint{font-size:12px;color:var(--text-3);margin-top:5px}
.chips{display:flex;gap:8px;flex-wrap:wrap}
.chip{padding:6px 12px;border:1px solid #d9dce1;border-radius:6px;font-size:13px;background:#fff;color:var(--text-2);line-height:1.4}
.chip:hover{border-color:var(--primary-2);color:var(--primary)}
.chip.on{border-color:var(--primary);color:var(--primary);background:var(--primary-bg);font-weight:500}
.chips.seg{display:inline-flex;background:var(--bg);border-radius:10px;padding:4px;gap:2px}
.chips.seg .chip{border:0;background:transparent;padding:7px 18px;border-radius:8px}
.chips.seg .chip.on{background:#fff;color:var(--primary);font-weight:600;box-shadow:0 1px 4px rgba(0,0,0,.08)}
.check{display:inline-flex;align-items:center;gap:6px;font-size:13px;color:var(--text-2);cursor:pointer;padding-top:4px}
.check input{width:16px;height:16px;accent-color:var(--primary)}
.form-actions{grid-column:1/-1;display:flex;gap:10px;align-items:center;margin-bottom:18px}
.form-actions .btn.pri{min-width:120px}
.live-tip{font-size:12px;color:var(--text-3)}
.form-actions.is-live{justify-content:flex-end;margin-top:-6px}
.form-actions.is-live .btn{height:28px;font-size:12px;padding:0 10px}
.form-actions.is-live .live-tip{order:-1;margin-right:auto}

/* 结果 */
.tool-result{transition:opacity .15s}
.tool-result.loading{opacity:.55}
.res-main{background:linear-gradient(180deg,#f6f9ff,#fff);border:1px solid #cfe0ff;border-radius:10px;padding:16px 18px;position:relative;margin-bottom:14px}
.res-main .lab{font-size:12px;color:var(--text-3);margin-bottom:4px}
.res-main .val{font-size:19px;font-weight:600;color:#123a8c;word-break:break-word;padding-right:70px;line-height:1.5}
.res-main .sub{font-size:12px;color:var(--text-3);margin-top:4px}
.res-main .copy{position:absolute;right:12px;top:12px}
.res-stats{display:grid;grid-template-columns:repeat(auto-fit,minmax(130px,1fr));gap:12px;margin-bottom:14px}
.res-stats div{background:var(--bg);border-radius:10px;padding:14px;text-align:center;min-width:0}
.res-stats b{display:block;font-size:20px;color:var(--primary);word-break:break-all;line-height:1.4}
.res-stats span{font-size:12px;color:var(--text-3)}
.res-items{border:1px solid var(--line);border-radius:10px;margin-bottom:14px;overflow:hidden}
.res-items .row{display:flex;gap:12px;padding:10px 14px;border-bottom:1px solid var(--line);align-items:flex-start}
.res-items .row:last-child{border-bottom:0}
.res-items .k{width:140px;flex-shrink:0;color:var(--text-3);font-size:13px}
.res-items .v{flex:1;word-break:break-word;min-width:0}
.mini{border:0;background:none;color:var(--primary);font-size:12px;flex-shrink:0;padding:0 2px}
.mini:hover{text-decoration:underline}
.res-table{margin-bottom:14px}
.res-table .th{display:flex;align-items:center;margin-bottom:8px;gap:10px}
.res-table .th h3{font-size:14px}
.res-table .th .mini{margin-left:auto}
.tbl-wrap{overflow-x:auto;border:1px solid var(--line);border-radius:10px}
.tbl{width:100%;border-collapse:collapse;font-size:13px}
.tbl th,.tbl td{padding:9px 12px;text-align:left;border-bottom:1px solid var(--line);vertical-align:top}
.tbl th{background:#fafbfc;color:var(--text-2);font-weight:500;white-space:nowrap}
.tbl tr:last-child td{border-bottom:0}
.tbl td.num{text-align:right;font-variant-numeric:tabular-nums;white-space:nowrap}
.tbl td.op{white-space:nowrap;width:1%}
.tbl th.num{text-align:right}
.tbl tbody tr:hover{background:#fafcff}
.res-note{font-size:13px;padding:10px 14px;border-radius:8px;background:#f4f8ff;color:#3b5b9a;margin-bottom:10px}
.res-note.warn{background:#fff7ec;color:#a65b00}
.res-error{padding:14px 16px;border-radius:10px;background:#fff1f0;color:var(--red);border:1px solid #ffd6d3}

/* 说明文档 */
.doc h2{font-size:16px;margin:20px 0 10px;display:flex;align-items:center;gap:8px}
.doc h2::before{content:"";width:4px;height:15px;background:var(--primary);border-radius:2px}
.doc h2:first-child{margin-top:0}
.doc h3{font-size:14px;margin:14px 0 6px}
.doc p,.doc li{color:var(--text-2);font-size:13.5px;line-height:1.8}
.doc p{margin-bottom:8px}
.doc ul,.doc ol{padding-left:20px;margin-bottom:10px}
.doc code{background:var(--bg);padding:1px 6px;border-radius:4px;font-size:12.5px}
.doc a{color:var(--primary)}
.doc blockquote{border-left:3px solid var(--primary-2);background:#f7f9fc;padding:8px 14px;color:var(--text-2);font-size:13px;margin:10px 0;border-radius:0 6px 6px 0}
.doc .tbl-wrap{margin:8px 0 14px}

/* 侧栏 */
.tool-side{position:sticky;top:80px}
.side-box{background:#fff;border-radius:var(--radius);border:1px solid var(--line);padding:16px;margin-bottom:16px}
.side-box h4{font-size:14px;margin-bottom:8px}
.side-list a{display:flex;align-items:center;gap:10px;padding:8px 0;border-bottom:1px dashed var(--line);font-size:13px;color:var(--text-2)}
.side-list a:last-child{border:0}
.side-list a:hover{color:var(--primary)}
.side-list .n{width:18px;height:18px;border-radius:4px;background:var(--bg);font-size:11px;display:grid;place-items:center;color:var(--text-3);flex-shrink:0}
.side-list a:nth-child(-n+3) .n{background:var(--primary);color:#fff}
.ad{border-radius:var(--radius);overflow:hidden;margin-bottom:16px}
.ad img{display:block;width:100%}

/* 弹窗与提示 */
.modal{position:fixed;inset:0;background:rgba(0,0,0,.4);display:grid;place-items:center;z-index:60;padding:16px}
.modal-box{background:#fff;border-radius:14px;width:100%;max-width:440px;padding:20px}
.modal-h{font-size:16px;font-weight:600;display:flex;align-items:center;margin-bottom:14px}
.modal-x{margin-left:auto;border:0;background:none;font-size:22px;line-height:1;color:var(--text-3)}
.modal-box textarea,.modal-box input{width:100%;border:1px solid #d9dce1;border-radius:8px;padding:10px 12px;outline:0;margin-bottom:10px;font-size:14px}
.modal-box textarea:focus,.modal-box input:focus{border-color:var(--primary)}
.modal-f{display:flex;align-items:center;gap:10px}
.modal-f .btn{margin-left:auto}
.form-msg{font-size:13px;color:var(--red)}
.hp{position:absolute!important;left:-9999px!important;width:1px!important;height:1px!important}
.toast{position:fixed;left:50%;top:80px;transform:translateX(-50%);background:rgba(31,35,41,.92);color:#fff;padding:9px 18px;border-radius:8px;font-size:13px;z-index:80;pointer-events:none}
.mask{display:none}

/* ---------- 响应式 ---------- */
@media (max-width:1100px){
  .tool-wrap{grid-template-columns:minmax(0,1fr)}
  .tool-side{position:static;display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:16px}
  .tool-side .side-box,.tool-side .ad{margin-bottom:0}
}
@media (max-width:820px){
  .side{transform:translateX(-100%);box-shadow:none}
  body.nav-open .side{transform:none;box-shadow:0 0 40px rgba(0,0,0,.2)}
  body.nav-open .mask{display:block;position:fixed;inset:0;background:rgba(0,0,0,.35);z-index:25}
  .main{margin-left:0}
  .burger{display:block}
  .top{padding:0 16px;gap:10px}
  .crumb{display:none}
  .search{width:auto;flex:1}
  .content{padding:16px}
  .hero{padding:22px 20px}
  .hero h1{font-size:22px}
  .hero .stats{gap:22px}
  .hero .stats b{font-size:18px}
  .panel{padding:16px}
  .field.w-half,.field.w-third{grid-column:span 6}
  .tool-head .act .btn{padding:0 10px}
  .res-items .k{width:96px}
  .tool-side{grid-template-columns:minmax(0,1fr)}
  .foot{padding:16px}
  .tbl th,.tbl td{padding:8px 10px}
}
@media (max-width:520px){
  .tool-head{flex-wrap:wrap}
  .tool-head .act{margin-left:0;width:100%}
  .grid{grid-template-columns:1fr}
  .top-link{display:none}
  .chips.seg{display:flex;width:100%}
  .chips.seg .chip{flex:1;padding:7px 6px}
  .res-main .val{font-size:17px;padding-right:0}
  .res-main .copy{position:static;margin-top:8px}
}