/* ============================================================
   创业作战室 VentureOps — 设计系统
   专业商务 / Stripe 风格 · 轻色主题 · 移动优先
   ============================================================ */

:root{
  --ink:#0B1524;
  --ink-2:#1E293B;
  --ink-3:#334155;
  --muted:#64748B;
  --muted-2:#94A3B8;
  --line:#E4E9F0;
  --line-2:#EEF2F7;
  --bg:#F5F7FA;
  --bg-soft:#EEF2F8;
  --card:#FFFFFF;
  --brand:#12305B;
  --brand-2:#1D4ED8;
  --brand-3:#3B82F6;
  --accent:#0891B2;
  --accent-2:#06B6D4;
  --amber:#B45309;
  --amber-bg:#FFFBEB;
  --ok:#047857;
  --ok-bg:#ECFDF5;
  --warn:#B45309;
  --warn-bg:#FFFBEB;
  --danger:#B91C1C;
  --danger-bg:#FEF2F2;
  --purple:#6D28D9;
  --radius:14px;
  --radius-sm:10px;
  --radius-lg:20px;
  --shadow-sm:0 1px 2px rgba(15,23,42,.05), 0 1px 3px rgba(15,23,42,.04);
  --shadow:0 4px 14px rgba(15,23,42,.06), 0 1px 3px rgba(15,23,42,.04);
  --shadow-lg:0 18px 44px rgba(15,23,42,.10);
  --grad:linear-gradient(135deg,#12305B 0%,#1D4ED8 55%,#0891B2 100%);
  --grad-soft:linear-gradient(135deg,#F0F5FF 0%,#EAF6FB 100%);
  --maxw:1240px;
  --nav-h:60px;
}

*{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:system-ui,-apple-system,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;
  background:var(--bg);
  color:var(--ink-2);
  font-size:15px;
  line-height:1.72;
  -webkit-font-smoothing:antialiased;
  padding-bottom:0;
}
@media(min-width:1000px){ body{ font-size:15.5px; } }

h1,h2,h3,h4,h5{color:var(--ink);margin:0;line-height:1.32;font-weight:700;letter-spacing:-.01em;}
h1{font-size:26px;} h2{font-size:21px;} h3{font-size:17px;} h4{font-size:15px;}
p{margin:0 0 12px;}
a{color:var(--brand-2);text-decoration:none;}
a:hover{color:var(--brand);}
img{max-width:100%;display:block;}
ul,ol{margin:0 0 12px;padding-left:22px;}
li{margin-bottom:5px;}
strong{color:var(--ink);font-weight:600;}
hr{border:0;border-top:1px solid var(--line);margin:22px 0;}
code{background:var(--bg-soft);padding:1px 6px;border-radius:5px;font-size:13px;color:var(--brand);font-family:ui-monospace,Menlo,Consolas,monospace;}
.num{font-variant-numeric:tabular-nums;}

/* ---------- 布局 ---------- */
.wrap{max-width:var(--maxw);margin:0 auto;padding:0 16px;}
.section{padding:34px 0 6px;}
.section-head{margin-bottom:20px;}
.section-head .eyebrow{
  display:inline-flex;align-items:center;gap:6px;font-size:11.5px;font-weight:700;letter-spacing:.09em;
  color:var(--brand-2);background:#EFF4FF;border:1px solid #DCE7FF;padding:4px 10px;border-radius:999px;margin-bottom:10px;text-transform:uppercase;
}
.section-head h2{margin-bottom:8px;}
.section-head p{color:var(--muted);max-width:820px;font-size:14.5px;margin:0;}
.grid{display:grid;gap:14px;}
.g2{grid-template-columns:1fr;}
.g3{grid-template-columns:1fr;}
.g4{grid-template-columns:1fr 1fr;}
@media(min-width:700px){ .g2,.g3,.g4{grid-template-columns:repeat(2,1fr);} }
@media(min-width:1000px){
  .g3{grid-template-columns:repeat(3,1fr);}
  .g4{grid-template-columns:repeat(4,1fr);}
  .section{padding:44px 0 8px;}
  h1{font-size:34px;} h2{font-size:25px;}
}
.stack{display:flex;flex-direction:column;gap:14px;}
.row{display:flex;gap:10px;flex-wrap:wrap;align-items:center;}
.spread{display:flex;justify-content:space-between;align-items:center;gap:12px;flex-wrap:wrap;}

/* ---------- 顶部导航 ---------- */
.nav{
  position:sticky;top:0;z-index:80;background:rgba(255,255,255,.92);
  backdrop-filter:saturate(180%) blur(14px);-webkit-backdrop-filter:saturate(180%) blur(14px);
  border-bottom:1px solid var(--line);
}
.nav-in{max-width:var(--maxw);margin:0 auto;padding:0 14px;height:var(--nav-h);display:flex;align-items:center;gap:14px;}
.brand{display:flex;align-items:center;gap:9px;flex:0 0 auto;text-decoration:none;}
.brand-mark{
  width:30px;height:30px;border-radius:9px;background:var(--grad);display:grid;place-items:center;
  color:#fff;font-weight:800;font-size:14px;box-shadow:0 3px 10px rgba(29,78,216,.32);letter-spacing:-.03em;
}
.brand-txt{display:flex;flex-direction:column;line-height:1.12;}
.brand-txt b{color:var(--ink);font-size:15px;letter-spacing:-.02em;}
.brand-txt span{font-size:10px;color:var(--muted-2);letter-spacing:.14em;font-weight:600;}
.nav-links{
  display:flex;gap:2px;overflow-x:auto;scrollbar-width:none;-ms-overflow-style:none;flex:1 1 auto;
  -webkit-overflow-scrolling:touch;
}
.nav-links::-webkit-scrollbar{display:none;}
.nav-links a{
  flex:0 0 auto;padding:7px 11px;border-radius:8px;font-size:13.5px;color:var(--ink-3);font-weight:500;white-space:nowrap;
}
.nav-links a:hover{background:var(--bg-soft);color:var(--ink);}
.nav-links a.on{background:#EFF4FF;color:var(--brand-2);font-weight:700;}
.nav-cta{flex:0 0 auto;display:none;}
@media(min-width:1080px){ .nav-cta{display:flex;} }

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:7px;
  padding:9px 16px;border-radius:9px;font-size:13.5px;font-weight:600;border:1px solid var(--line);
  background:#fff;color:var(--ink-2);cursor:pointer;transition:.16s;line-height:1.4;
}
.btn:hover{border-color:#CBD5E1;color:var(--ink);box-shadow:var(--shadow-sm);}
.btn:active{transform:translateY(1px);}
.btn-p{background:var(--grad);color:#fff;border:0;box-shadow:0 4px 14px rgba(29,78,216,.28);}
.btn-p:hover{color:#fff;filter:brightness(1.06);box-shadow:0 6px 18px rgba(29,78,216,.34);}
.btn-s{background:var(--ink);color:#fff;border-color:var(--ink);}
.btn-s:hover{color:#fff;background:#000;}
.btn-sm{padding:6px 11px;font-size:12.5px;border-radius:8px;}
.btn:disabled{opacity:.5;cursor:not-allowed;}

/* ---------- 卡片 ---------- */
.card{
  background:var(--card);border:1px solid var(--line);border-radius:var(--radius);
  padding:18px;box-shadow:var(--shadow-sm);
}
.card:hover{box-shadow:var(--shadow);}
.card-h{display:flex;align-items:flex-start;gap:11px;margin-bottom:10px;}
.card-ico{
  width:34px;height:34px;border-radius:10px;flex:0 0 auto;display:grid;place-items:center;
  background:var(--grad-soft);color:var(--brand-2);font-size:16px;font-weight:700;border:1px solid #E1EAFB;
}
.card p{font-size:14px;color:var(--muted);margin:0;}
.card-tight{padding:14px;}

/* ---------- Hero ---------- */
.hero{position:relative;overflow:hidden;background:var(--ink);color:#fff;}
.hero-bg{position:absolute;inset:0;}
.hero-bg img{width:100%;height:100%;object-fit:cover;opacity:.30;}
.hero-bg::after{content:"";position:absolute;inset:0;background:linear-gradient(115deg,rgba(8,17,34,.94) 0%,rgba(18,48,91,.84) 45%,rgba(8,145,178,.62) 100%);}
.hero-in{position:relative;max-width:var(--maxw);margin:0 auto;padding:44px 16px 40px;}
@media(min-width:1000px){ .hero-in{padding:66px 16px 58px;} }
.hero .eyebrow{
  display:inline-flex;align-items:center;gap:7px;font-size:11.5px;font-weight:700;letter-spacing:.1em;
  background:rgba(255,255,255,.13);border:1px solid rgba(255,255,255,.25);padding:5px 12px;border-radius:999px;
  color:#DCEBFF;margin-bottom:16px;backdrop-filter:blur(6px);
}
.hero h1{color:#fff;font-size:30px;line-height:1.24;margin-bottom:14px;max-width:900px;}
@media(min-width:1000px){ .hero h1{font-size:46px;} }
.hero .lead{color:#C3D3E8;font-size:15px;max-width:760px;margin-bottom:24px;}
@media(min-width:1000px){ .hero .lead{font-size:17.5px;} }
.hero-stats{display:grid;grid-template-columns:repeat(2,1fr);gap:10px;margin-top:26px;}
@media(min-width:700px){ .hero-stats{grid-template-columns:repeat(4,1fr);} }
.hstat{background:rgba(255,255,255,.09);border:1px solid rgba(255,255,255,.16);border-radius:12px;padding:13px 14px;backdrop-filter:blur(8px);}
.hstat b{display:block;font-size:22px;color:#fff;line-height:1.2;font-variant-numeric:tabular-nums;}
.hstat span{font-size:11.5px;color:#A9BED6;display:block;margin-top:2px;}
.hstat .u{font-size:12px;font-weight:500;color:#7FA3C8;margin-left:2px;}

/* ---------- 数据条 ---------- */
.stat{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:15px 16px;}
.stat .k{font-size:11.5px;color:var(--muted);font-weight:600;letter-spacing:.02em;}
.stat .v{font-size:24px;font-weight:800;color:var(--ink);letter-spacing:-.02em;font-variant-numeric:tabular-nums;line-height:1.25;}
.stat .v small{font-size:12px;font-weight:600;color:var(--muted);margin-left:3px;}
.stat .d{font-size:12px;margin-top:3px;}
.up{color:var(--danger);} .down{color:var(--ok);} /* 中国习惯：增红跌绿 */
.neutral{color:var(--muted);}

/* ---------- 标签 / 徽章 ---------- */
.chip{
  display:inline-flex;align-items:center;gap:5px;padding:3px 9px;border-radius:999px;font-size:11.5px;
  background:var(--bg-soft);color:var(--ink-3);border:1px solid var(--line);font-weight:600;white-space:nowrap;
}
.chip-b{background:#EFF4FF;color:var(--brand-2);border-color:#DCE7FF;}
.chip-g{background:var(--ok-bg);color:var(--ok);border-color:#A7F3D0;}
.chip-y{background:var(--warn-bg);color:var(--warn);border-color:#FDE68A;}
.chip-r{background:var(--danger-bg);color:var(--danger);border-color:#FECACA;}
.chip-p{background:#F5F3FF;color:var(--purple);border-color:#DDD6FE;}
.chip-c{background:#ECFEFF;color:#0E7490;border-color:#A5F3FC;}
.chip-lg{padding:5px 12px;font-size:12.5px;}

/* ---------- 进度条 ---------- */
.bar{height:7px;border-radius:99px;background:var(--line-2);overflow:hidden;}
.bar>i{display:block;height:100%;border-radius:99px;background:var(--grad);transition:width .5s cubic-bezier(.4,0,.2,1);}
.bar.r>i{background:linear-gradient(90deg,#F87171,#B91C1C);}
.bar.y>i{background:linear-gradient(90deg,#FBBF24,#B45309);}
.bar.g>i{background:linear-gradient(90deg,#34D399,#047857);}

/* ---------- 表格 ---------- */
.tw{overflow-x:auto;-webkit-overflow-scrolling:touch;border:1px solid var(--line);border-radius:var(--radius);background:#fff;}
table{border-collapse:collapse;width:100%;min-width:560px;font-size:13.5px;}
th,td{padding:10px 13px;text-align:left;border-bottom:1px solid var(--line-2);vertical-align:top;}
th{background:var(--bg-soft);font-size:12px;font-weight:700;color:var(--ink-3);white-space:nowrap;position:sticky;top:0;}
tbody tr:last-child td{border-bottom:0;}
tbody tr:hover{background:#FAFCFF;}
td.n,th.n{text-align:right;font-variant-numeric:tabular-nums;}

/* ---------- 表单 ---------- */
.field{margin-bottom:13px;}
.field label{display:block;font-size:12.5px;font-weight:700;color:var(--ink-3);margin-bottom:5px;}
.field .hint{font-size:11.5px;color:var(--muted-2);font-weight:500;margin-left:5px;}
input[type=text],input[type=number],input[type=date],select,textarea{
  width:100%;padding:9px 11px;border:1px solid var(--line);border-radius:9px;font-size:14px;
  font-family:inherit;background:#fff;color:var(--ink);transition:.15s;
}
input:focus,select:focus,textarea:focus{outline:0;border-color:var(--brand-3);box-shadow:0 0 0 3px rgba(59,130,246,.13);}
textarea{resize:vertical;min-height:78px;line-height:1.6;}
input[type=range]{width:100%;accent-color:var(--brand-2);height:26px;}
.f2{display:grid;grid-template-columns:1fr 1fr;gap:11px;}
@media(max-width:600px){ .f2{grid-template-columns:1fr;} }

/* ---------- 提示块 ---------- */
.note{border-radius:var(--radius-sm);padding:13px 15px;font-size:13.5px;border:1px solid;line-height:1.68;}
.note-b{background:#F0F6FF;border-color:#D9E6FB;color:#143A6B;}
.note-y{background:var(--warn-bg);border-color:#FDE68A;color:#78350F;}
.note-g{background:var(--ok-bg);border-color:#A7F3D0;color:#065F46;}
.note-r{background:var(--danger-bg);border-color:#FECACA;color:#7F1D1D;}
.note b{display:block;margin-bottom:3px;font-size:13px;}
.quote{
  border-left:3px solid var(--brand-2);background:#F7FAFF;padding:12px 16px;border-radius:0 var(--radius-sm) var(--radius-sm) 0;
  font-size:14px;color:var(--ink-3);margin:0 0 14px;
}
.quote .src{display:block;margin-top:6px;font-size:12px;color:var(--muted);font-weight:600;}

/* ---------- 手风琴 ---------- */
.acc{border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;background:#fff;margin-bottom:10px;}
.acc-h{padding:14px 16px;display:flex;align-items:center;gap:11px;cursor:pointer;user-select:none;transition:.15s;}
.acc-h:hover{background:#FAFCFF;}
.acc-h .t{flex:1;font-weight:700;color:var(--ink);font-size:14.5px;}
.acc-h .ic{transition:transform .25s;color:var(--muted-2);font-size:12px;}
.acc.open .acc-h .ic{transform:rotate(180deg);}
.acc-b{display:none;padding:0 16px 16px;border-top:1px solid var(--line-2);font-size:14px;color:var(--ink-3);}
.acc.open .acc-b{display:block;padding-top:14px;}

/* ---------- 商业模式画布 ---------- */
.bmc{display:grid;gap:8px;grid-template-columns:1fr;}
@media(min-width:760px){
  .bmc{grid-template-columns:repeat(5,1fr);grid-template-rows:auto auto auto;}
  .bmc .c-key{grid-column:1/2;grid-row:1/3;}
  .bmc .c-act{grid-column:2/3;grid-row:1/2;}
  .bmc .c-res{grid-column:2/3;grid-row:2/3;}
  .bmc .c-vp{grid-column:3/4;grid-row:1/3;}
  .bmc .c-rel{grid-column:4/5;grid-row:1/2;}
  .bmc .c-ch{grid-column:4/5;grid-row:2/3;}
  .bmc .c-seg{grid-column:5/6;grid-row:1/3;}
  .bmc .c-cost{grid-column:1/4;grid-row:3/4;}
  .bmc .c-rev{grid-column:4/6;grid-row:3/4;}
}
.bmc-cell{background:#fff;border:1px solid var(--line);border-radius:var(--radius-sm);padding:11px;display:flex;flex-direction:column;min-height:118px;}
.bmc-cell .ct{font-size:11px;font-weight:800;color:var(--brand);letter-spacing:.03em;margin-bottom:2px;}
.bmc-cell .cs{font-size:10.5px;color:var(--muted-2);margin-bottom:7px;line-height:1.45;}
.bmc-cell textarea{flex:1;border:1px solid var(--line-2);border-radius:7px;padding:8px;font-size:13px;min-height:74px;background:#FDFEFF;}
.bmc-cell textarea:focus{background:#fff;}
.bmc-cell.hl{outline:2px solid var(--brand-3);outline-offset:1px;}

/* ---------- 雷达图 ---------- */
.radar-wrap{display:flex;flex-direction:column;align-items:center;gap:14px;}
@media(min-width:820px){ .radar-wrap{flex-direction:row;align-items:center;} }
.radar-wrap svg{max-width:340px;width:100%;height:auto;}

/* ---------- 页脚 ---------- */
.foot{margin-top:44px;background:var(--ink);color:#93A7BF;padding:34px 0 26px;font-size:13px;}
.foot h4{color:#fff;font-size:13px;margin-bottom:10px;letter-spacing:.05em;text-transform:uppercase;}
.foot a{color:#B9C9DC;}
.foot a:hover{color:#fff;}
.foot .cols{display:grid;grid-template-columns:1fr 1fr;gap:22px;}
@media(min-width:820px){ .foot .cols{grid-template-columns:2fr 1fr 1fr 1fr;} }
.foot .bott{border-top:1px solid rgba(255,255,255,.11);margin-top:24px;padding-top:16px;font-size:12px;color:#7A8FA6;}

/* ---------- 移动端底部工具栏 ---------- */
.tabbar{
  position:fixed;left:0;right:0;bottom:0;z-index:90;display:flex;background:rgba(255,255,255,.96);
  backdrop-filter:blur(12px);border-top:1px solid var(--line);padding:5px 4px calc(5px + env(safe-area-inset-bottom));
}
@media(min-width:1000px){ .tabbar{display:none;} }
.tabbar a{
  flex:1;display:flex;flex-direction:column;align-items:center;gap:2px;padding:5px 2px;font-size:10.5px;
  color:var(--muted);font-weight:600;border-radius:9px;
}
.tabbar a .ti{font-size:17px;line-height:1;}
.tabbar a.on{color:var(--brand-2);background:#EFF4FF;}
@media(max-width:999px){ body{padding-bottom:62px;} }

/* ---------- 工具类 ---------- */
.mt0{margin-top:0!important;} .mb0{margin-bottom:0!important;} .mt8{margin-top:8px;} .mt16{margin-top:16px;} .mt24{margin-top:24px;}
.muted{color:var(--muted);} .small{font-size:12.5px;} .xs{font-size:11.5px;}
.center{text-align:center;} .right{text-align:right;} .nowrap{white-space:nowrap;}
.hide-sm{display:none;} @media(min-width:760px){ .hide-sm{display:block;} }
.divider{height:1px;background:var(--line);margin:20px 0;}
.pill-nav{display:flex;gap:7px;overflow-x:auto;padding-bottom:4px;scrollbar-width:none;}
.pill-nav::-webkit-scrollbar{display:none;}
.pill-nav button{
  flex:0 0 auto;padding:6px 13px;border-radius:999px;border:1px solid var(--line);background:#fff;
  font-size:12.5px;font-weight:600;color:var(--ink-3);cursor:pointer;font-family:inherit;transition:.15s;
}
.pill-nav button:hover{border-color:#CBD5E1;}
.pill-nav button.on{background:var(--ink);color:#fff;border-color:var(--ink);}
.search{position:relative;}
.search input{padding-left:34px;}
.search .si{position:absolute;left:11px;top:50%;transform:translateY(-50%);color:var(--muted-2);font-size:13px;}
.empty{padding:34px 16px;text-align:center;color:var(--muted);font-size:14px;}
.badge-num{
  width:22px;height:22px;border-radius:7px;background:var(--grad);color:#fff;font-size:11px;font-weight:800;
  display:grid;place-items:center;flex:0 0 auto;
}
.list-item{display:flex;gap:10px;padding:11px 0;border-bottom:1px solid var(--line-2);}
.list-item:last-child{border-bottom:0;}
.list-item .li-b{flex:1;min-width:0;}
.list-item .li-t{font-weight:700;color:var(--ink);font-size:14px;}
.list-item .li-d{font-size:12.5px;color:var(--muted);margin-top:2px;}

/* ---------- 通用小组件（跨页复用） ---------- */
.kv{display:flex;gap:7px;flex-wrap:wrap;margin-top:9px;}
.kv span{font-size:11.5px;background:var(--bg-soft);border:1px solid var(--line);border-radius:7px;padding:3px 9px;color:var(--ink-3);}
.grp-h{display:flex;align-items:center;gap:10px;margin:22px 0 12px;padding-bottom:9px;border-bottom:2px solid var(--line);flex-wrap:wrap;}
.grp-h .gn{font-size:17px;font-weight:800;color:var(--ink);}
.grp-c{width:26px;height:26px;border-radius:8px;display:grid;place-items:center;color:#fff;font-weight:800;font-size:13px;flex:0 0 auto;}
.chk{display:flex;gap:10px;padding:8px 0;align-items:flex-start;cursor:pointer;font-size:13.5px;}
.chk input{width:17px;height:17px;margin-top:3px;accent-color:#1D4ED8;flex:0 0 auto;cursor:pointer;}
.chk span{flex:1;line-height:1.6;}
.chk.on span{color:var(--muted-2);text-decoration:line-through;}
.prog{height:6px;background:var(--line-2);border-radius:99px;overflow:hidden;margin-top:6px;}
.prog i{display:block;height:100%;background:linear-gradient(90deg,#34D399,#047857);transition:width .4s;}
.warnline{font-size:12px;margin-top:8px;padding:7px 10px;border-radius:7px;line-height:1.6;}
.mini{background:#fff;border:1px solid var(--line);border-radius:9px;padding:10px 12px;}
.mini .mk{font-size:11px;color:var(--muted);font-weight:600;}
.mini .mv{font-size:18px;font-weight:800;color:var(--ink);font-variant-numeric:tabular-nums;line-height:1.3;}
.mini .mv small{font-size:11px;color:var(--muted);font-weight:600;}
.res{background:var(--grad-soft);border:1px solid #DCE7FB;border-radius:var(--radius-sm);padding:13px 15px;}
.res .rr{display:flex;justify-content:space-between;align-items:baseline;padding:6px 0;border-bottom:1px dashed #DCE7FB;font-size:13.5px;gap:12px;}
.res .rr:last-child{border-bottom:0;}
.res .rr b{font-size:16px;color:var(--brand);font-variant-numeric:tabular-nums;text-align:right;}

/* 打印 */
@media print{
  .nav,.tabbar,.foot,.noprint{display:none!important;}
  body{background:#fff;}
  .card,.stat,.acc,.tw{break-inside:avoid;box-shadow:none;}
}