/* =========================================================
   roi.css  ·  /roi/ 设备数字化 ROI 测算器专属样式
   仅在 roi/index.html 引入，不影响站内其他页面
   ========================================================= */

/* ---------- Hero 标签行（style.css 的 .tag-row 规则只挂在 .page-hero 下，本页用 .hero 需补齐） ---------- */
.hero .tag-row{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:16px}
.hero .tag-row span{font-size:12px;background:#EEF3FC;color:var(--brand);border:1px solid #C9DCF6;padding:3px 11px;border-radius:20px;font-weight:600}

/* ---------- 顶部声明条 ---------- */
.roi-notice{
  display:flex;gap:10px;align-items:flex-start;
  background:#FFF8E8;border:1px solid #F0DCA8;border-radius:12px;
  padding:13px 16px;font-size:13.5px;color:#8A5D0A;line-height:1.65;margin-bottom:26px;
}
.roi-notice b{color:#7A4E06}
.roi-notice .ico{flex-shrink:0;font-size:15px;line-height:1.5}

/* ---------- 主体两栏 ---------- */
.roi-layout{display:grid;grid-template-columns:1.42fr .88fr;gap:26px;align-items:start}
@media(max-width:1000px){.roi-layout{grid-template-columns:1fr}}

/* ---------- 步骤卡 ---------- */
.roi-step{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:22px 24px 24px;box-shadow:var(--shadow);margin-bottom:18px}
.roi-step-head{display:flex;align-items:center;gap:11px;margin-bottom:6px}
.roi-step-no{width:27px;height:27px;border-radius:50%;background:var(--brand);color:#fff;font-size:14px;font-weight:700;display:flex;align-items:center;justify-content:center;flex-shrink:0}
.roi-step-head h3{font-size:17px;font-weight:700;color:var(--ink);margin:0}
.roi-step-head .opt{font-size:11.5px;color:var(--ink-3);font-weight:400;margin-left:auto;border:1px solid var(--line);border-radius:10px;padding:1px 9px}
.roi-step-desc{font-size:13px;color:var(--ink-3);margin:0 0 16px;padding-left:38px}

/* ---------- 字段栅格 ---------- */
.roi-fields{display:grid;grid-template-columns:1fr 1fr;gap:14px 16px}
.roi-fields .span2{grid-column:1/-1}
@media(max-width:620px){.roi-fields{grid-template-columns:1fr}}
.field{display:flex;flex-direction:column;gap:6px;min-width:0}
.field label{font-size:13px;color:var(--ink-2);font-weight:600;display:flex;align-items:baseline;gap:5px}
.field label .u{font-weight:400;color:var(--ink-3);font-size:12px}
.field input,.field select{
  width:100%;min-width:0;font-family:var(--font);font-size:15px;color:var(--ink);
  background:#fff;border:1px solid var(--line);border-radius:9px;padding:9px 12px;
  line-height:1.5;transition:border-color .15s,box-shadow .15s;appearance:none;
}
.field select{background-image:url("data:image/svg+xml;charset=utf-8,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8'%3E%3Cpath d='M1 1l5 5 5-5' fill='none' stroke='%237A879C' stroke-width='1.6'/%3E%3C/svg%3E");background-repeat:no-repeat;background-position:right 12px center;padding-right:32px}
.field input:focus,.field select:focus{outline:none;border-color:var(--brand-2);box-shadow:0 0 0 3px rgba(46,107,230,.13)}
.field .hint{font-size:11.5px;color:var(--ink-3);line-height:1.5}
.field.err input{border-color:#E65C4F;box-shadow:0 0 0 3px rgba(230,92,79,.12)}

/* ---------- 部署方式分段控件 ---------- */
/* 结构：label.seg-item > input(铺满整卡的隐形单选框) + span.seg-face
   整张卡片可点、自动化可点、键盘可 Tab/方向键切换 */
.seg{display:grid;grid-template-columns:1fr 1fr;gap:10px}
.seg-item{
  position:relative;display:block;border:1px solid var(--line);border-radius:11px;
  background:#fff;cursor:pointer;transition:border-color .15s,background .15s,box-shadow .15s;
}
.seg-item input{
  position:absolute;inset:0;width:100%;height:100%;margin:0;opacity:0;cursor:pointer;z-index:1;
}
.seg-face{display:block;padding:12px 14px}
.seg-face b{display:block;font-size:14.5px;color:var(--ink);font-weight:700}
.seg-face span{display:block;font-size:11.5px;color:var(--ink-3);margin-top:2px;line-height:1.5}
.seg-item:hover{border-color:#C9DCF6}
.seg-item input:checked ~ .seg-face b{color:var(--brand)}
.seg-item:has(input:checked){border-color:var(--brand-2);background:#F0F5FD;box-shadow:0 0 0 3px rgba(46,107,230,.12)}
.seg-item:has(input:focus-visible){outline:2px solid var(--brand-2);outline-offset:2px}

/* ---------- 命中率滑杆 ---------- */
.slider-row{display:flex;align-items:center;gap:14px}
.slider-row input[type=range]{
  flex:1;min-width:0;appearance:none;height:5px;border-radius:3px;background:#DCE5F3;padding:0;border:0;
}
.slider-row input[type=range]::-webkit-slider-thumb{
  appearance:none;width:19px;height:19px;border-radius:50%;background:var(--brand-2);
  border:3px solid #fff;box-shadow:0 1px 5px rgba(27,78,155,.4);cursor:pointer;
}
.slider-row input[type=range]::-moz-range-thumb{
  width:15px;height:15px;border-radius:50%;background:var(--brand-2);border:3px solid #fff;cursor:pointer;
}
.slider-val{font-size:16px;font-weight:700;color:var(--brand);min-width:52px;text-align:right;font-variant-numeric:tabular-nums}

/* ---------- 折叠高级项 ---------- */
.roi-adv{border:1px dashed var(--line);border-radius:11px;margin-top:16px;background:#FCFDFF}
.roi-adv summary{padding:11px 16px;font-size:13.5px;color:var(--ink-2);font-weight:600}
.roi-adv summary::before{content:""}
.roi-adv summary::marker{content:""}
.roi-adv[open] summary{border-bottom:1px dashed var(--line)}
.roi-adv .roi-fields{padding:16px}

/* ---------- 右侧结果预览（sticky） ---------- */
.roi-summary{position:sticky;top:88px}
@media(max-width:1000px){.roi-summary{position:static}}
.roi-sumbox{background:linear-gradient(150deg,#0A1E3C 0%,#123A6E 58%,#1B4E9B 100%);border-radius:18px;padding:24px 22px;color:#fff;box-shadow:0 12px 34px rgba(14,42,82,.22)}
.roi-sumbox .eyebrow{font-size:11.5px;letter-spacing:1.6px;color:#9FC0F0;font-weight:700}
.roi-sum-hero{margin:12px 0 4px;display:flex;align-items:baseline;gap:7px}
.roi-sum-hero b{font-size:42px;line-height:1;font-weight:800;font-variant-numeric:tabular-nums}
.roi-sum-hero i{font-style:normal;font-size:14px;color:#BFD4F0}
.roi-sum-hero em{font-style:normal;font-size:20px;color:#BFD4F0;font-weight:600}
.roi-sum-sub{font-size:12.5px;color:#9FC0F0}
.roi-badge{display:inline-block;font-size:12px;font-weight:700;padding:3px 11px;border-radius:20px;margin-top:12px;background:rgba(255,255,255,.14);border:1px solid rgba(255,255,255,.22)}
.roi-sum-grid{display:grid;grid-template-columns:1fr 1fr;gap:11px;margin-top:18px}
.roi-sum-item{background:rgba(255,255,255,.075);border:1px solid rgba(255,255,255,.15);border-radius:11px;padding:11px 12px}
.roi-sum-item span{display:block;font-size:11.5px;color:#BFD4F0}
.roi-sum-item b{display:block;font-size:17.5px;font-weight:700;margin-top:3px;font-variant-numeric:tabular-nums}
.roi-sum-item i{font-style:normal;font-size:11.5px;color:#9FC0F0;font-weight:400}
.roi-sumbox .btn{width:100%;text-align:center;margin-top:18px}
.roi-sumbox .btn-ghost{margin-top:9px;border-color:rgba(255,255,255,.35);font-size:14px;padding:10px 18px}
.roi-sumbox .tip{font-size:11.5px;color:#8FAFD8;text-align:center;margin-top:12px;line-height:1.6}

/* ---------- 报告区 ---------- */
.roi-report{display:none}
.roi-report.on{display:block;animation:roiIn .35s ease both}
@keyframes roiIn{from{opacity:0;transform:translateY(14px)}to{opacity:1;transform:none}}
.roi-report-head{display:flex;align-items:center;gap:12px;flex-wrap:wrap;margin-bottom:8px}
.roi-report-head h2{font-size:24px;font-weight:800;color:var(--ink);margin:0}
.roi-report-head .stamp{font-size:12.5px;color:var(--ink-3);margin-left:auto}
@media(max-width:620px){.roi-report-head .stamp{margin-left:0;width:100%}}

.roi-kpis{display:grid;grid-template-columns:repeat(4,1fr);gap:14px;margin:20px 0 8px}
@media(max-width:860px){.roi-kpis{grid-template-columns:1fr 1fr}}
.kpi{background:#fff;border:1px solid var(--line);border-radius:13px;padding:16px 17px;box-shadow:var(--shadow)}
.kpi span{display:block;font-size:12px;color:var(--ink-3);font-weight:600}
.kpi b{display:block;font-size:25px;line-height:1.25;margin-top:5px;color:var(--brand);font-variant-numeric:tabular-nums}
.kpi b i{font-style:normal;font-size:13px;font-weight:600;color:var(--ink-3);margin-left:2px}
.kpi em{display:block;font-style:normal;font-size:11.5px;color:var(--ink-3);margin-top:5px}

.roi-note{background:#F0F5FD;border:1px solid #C9DCF6;border-left:4px solid var(--brand-2);border-radius:0 12px 12px 0;padding:14px 18px;font-size:13.5px;color:var(--ink-2);line-height:1.75;margin-top:16px}
.roi-note b{color:var(--ink)}

/* ---------- 明细表 ---------- */
.roi-tally{display:grid;grid-template-columns:1fr 1fr;gap:20px;margin-top:26px}
@media(max-width:860px){.roi-tally{grid-template-columns:1fr}}
.tally-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:20px 22px;box-shadow:var(--shadow)}
.tally-card h4{font-size:15.5px;color:var(--ink);margin:0 0 14px;display:flex;align-items:center;gap:8px}
.tally-card h4 .dot{width:8px;height:8px;border-radius:50%;background:var(--brand-2)}
.tally-card h4 .dot.g{background:var(--ok)}
.tally-row{display:flex;justify-content:space-between;gap:14px;font-size:13.5px;padding:7px 0;border-bottom:1px dashed #EDF1F7}
.tally-row:last-of-type{border-bottom:0}
.tally-row span{color:var(--ink-2)}
.tally-row b{color:var(--ink);font-variant-numeric:tabular-nums;white-space:nowrap}
.tally-row.total{border-top:1px solid var(--line);margin-top:6px;padding-top:11px;font-size:15px}
.tally-row.total span{font-weight:700;color:var(--ink)}
.tally-row.total b{color:var(--brand);font-size:17px}
.tally-row.minus b{color:var(--ok)}

/* ---------- 敏感性矩阵 ---------- */
.matrix-wrap{overflow-x:auto;margin-top:14px;-webkit-overflow-scrolling:touch}
.matrix{border-collapse:collapse;width:100%;min-width:440px;font-size:13.5px}
.matrix th,.matrix td{border:1px solid var(--line);padding:9px 8px;text-align:center;font-variant-numeric:tabular-nums}
.matrix thead th{background:var(--bg-soft);color:var(--ink-2);font-size:12.5px;font-weight:700}
.matrix tbody th{background:var(--bg-soft);color:var(--ink-2);font-size:12.5px;font-weight:600;text-align:left;padding-left:12px;white-space:nowrap}
.matrix td b,.matrix tbody th b{font-weight:700}
.matrix td small,.matrix tbody th small{display:block;font-size:10.5px;color:var(--ink-3);font-weight:400;margin-top:1px}
.matrix td.t-green{background:#EAF8F0;color:#12774A}
.matrix td.t-yellow{background:#FFF8E8;color:#8A5D0A}
.matrix td.t-red{background:#FDEEEC;color:#B33A2C}
.matrix td.t-na{background:#F7F9FC;color:#8894A5}
.matrix td.cur{outline:2px solid var(--brand-2);outline-offset:-2px}
.matrix-legend{display:flex;flex-wrap:wrap;gap:16px;font-size:12px;color:var(--ink-3);margin-top:12px}
.matrix-legend i{display:inline-block;width:11px;height:11px;border-radius:3px;margin-right:6px;vertical-align:-1px}

/* ---------- 留资表单 ---------- */
.lead-card{background:linear-gradient(150deg,#0A1E3C 0%,#123A6E 58%,#1B4E9B 100%);border-radius:18px;padding:30px 30px 28px;color:#fff;margin-top:26px}
.lead-card h3{font-size:21px;font-weight:800;margin:0 0 8px;color:#fff}
.lead-card .sub{font-size:14px;color:#BFD4F0;margin:0 0 20px;line-height:1.7}
.lead-grid{display:grid;grid-template-columns:1fr 1fr;gap:13px}
@media(max-width:620px){.lead-grid{grid-template-columns:1fr}}
.lead-grid .span2{grid-column:1/-1}
.lead-field{display:flex;flex-direction:column;gap:5px}
.lead-field label{font-size:12.5px;color:#BFD4F0;font-weight:600}
.lead-field label .req{color:#FFB4A8}
.lead-field input{
  width:100%;font-family:var(--font);font-size:15px;color:#fff;background:rgba(255,255,255,.09);
  border:1px solid rgba(255,255,255,.24);border-radius:9px;padding:10px 13px;line-height:1.5;
}
.lead-field input::placeholder{color:#8FAFD8}
.lead-field input:focus{outline:none;border-color:#7FB0FF;background:rgba(255,255,255,.14);box-shadow:0 0 0 3px rgba(127,176,255,.2)}
.lead-hp{position:absolute!important;left:-9999px!important;width:1px;height:1px;opacity:0;pointer-events:none}
.lead-foot{display:flex;align-items:center;gap:16px;flex-wrap:wrap;margin-top:18px}
.lead-foot .btn-light{padding:12px 28px}
.lead-foot .alt{font-size:13.5px;color:#BFD4F0}
.lead-foot .alt a{color:#fff;font-weight:700;text-decoration:underline}
.lead-msg{font-size:13.5px;margin-top:14px;padding:11px 15px;border-radius:10px;line-height:1.6;display:none}
.lead-msg.on{display:block}
.lead-msg.ok{background:rgba(46,180,120,.16);border:1px solid rgba(46,180,120,.45);color:#C7F0DC}
.lead-msg.err{background:rgba(230,92,79,.16);border:1px solid rgba(230,92,79,.45);color:#FFD6D0}
.lead-priv{font-size:11.5px;color:#8FAFD8;margin-top:12px;line-height:1.65}

/* ---------- 口径说明 ---------- */
.formula-grid{display:grid;grid-template-columns:1fr 1fr;gap:18px}
@media(max-width:860px){.formula-grid{grid-template-columns:1fr}}
.formula-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:20px 22px}
.formula-card h4{font-size:15.5px;margin:0 0 10px;color:var(--ink)}
.formula-card code{display:block;background:#F4F7FB;border:1px solid var(--line);border-radius:8px;padding:10px 13px;font-size:12.5px;color:var(--brand);font-family:ui-monospace,Menlo,Consolas,monospace;line-height:1.75;overflow-x:auto;white-space:pre}
.formula-card p{font-size:13.5px;color:var(--ink-2);margin-top:10px}
.formula-card ul{list-style:none;margin:8px 0 0}
.formula-card li{position:relative;padding-left:20px;margin-bottom:7px;font-size:13.5px;color:var(--ink-2)}
.formula-card li::before{content:"·";position:absolute;left:7px;color:var(--brand-2);font-weight:800}

/* ---------- 打印 ---------- */
@media print{
  .topbar,.site-header,.cta-band,.roi-summary,.lead-card,.site-footer{display:none!important}
  .roi-report{display:block!important}
}