/* ============================================================
   CNMC 工具页样式
   依赖 main.css 的 :root 变量；预览时由页面自行定义
   ============================================================ */

.tool-page{background:var(--bg)}
.tool-hero{background:var(--navy);color:#fff;padding:38px 0 34px}
.tool-hero h1{font-size:30px;line-height:1.28;margin-bottom:10px;font-weight:700}
.tool-hero p{color:#c8d6ea;max-width:720px;font-size:16px}
.tool-crumb{font-size:13px;color:#8fa6c6;margin-bottom:14px}
.tool-crumb a{color:#8fa6c6}
.tool-crumb a:hover{color:var(--orange)}

.tool-main{padding:34px 0 10px}
.tool-layout{display:grid;grid-template-columns:minmax(0,1fr) 300px;gap:26px;align-items:start}

.tool-card{background:#fff;border:1px solid var(--border);border-radius:var(--radius);
  box-shadow:var(--shadow);padding:24px}
.tool-card + .tool-card{margin-top:20px}
.tool-card h2{font-size:19px;color:var(--navy);margin-bottom:6px}
.tool-card .sub{color:var(--muted);font-size:14px;margin-bottom:18px}

/* ---------- 表单 ---------- */
.tool-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(190px,1fr));gap:16px}
.tool-field label{display:block;font-size:13.5px;font-weight:600;color:var(--navy);margin-bottom:6px}
.tool-field .hint{font-size:12px;color:var(--muted);font-weight:400;margin-left:4px}
.tool-field input,.tool-field select{width:100%;padding:10px 12px;border:1px solid var(--border);
  border-radius:8px;font-size:15px;font-family:inherit;color:var(--text);background:#fff;
  transition:border-color .15s,box-shadow .15s}
.tool-field input:focus,.tool-field select:focus{outline:none;border-color:var(--navy-soft);
  box-shadow:0 0 0 3px rgba(22,64,124,.1)}
.tool-field .unit{font-size:12.5px;color:var(--muted);margin-top:4px}

/* 分段选择（单相/三相） */
.tool-seg{display:inline-flex;border:1px solid var(--border);border-radius:8px;overflow:hidden;background:#fff}
.tool-seg button{border:0;background:#fff;padding:9px 18px;font-size:14px;font-family:inherit;
  color:var(--muted);cursor:pointer;transition:.15s}
.tool-seg button + button{border-left:1px solid var(--border)}
.tool-seg button[aria-pressed="true"]{background:var(--navy);color:#fff;font-weight:600}

/* ---------- 设备清单表 ---------- */
.tool-rows{margin-top:6px}
.tool-row{display:grid;grid-template-columns:minmax(0,1fr) 84px 74px 32px;gap:9px;
  align-items:center;margin-bottom:9px}
.tool-row select,.tool-row input{padding:9px 10px;border:1px solid var(--border);
  border-radius:8px;font-size:14px;font-family:inherit;width:100%;background:#fff}
.tool-row select:focus,.tool-row input:focus{outline:none;border-color:var(--navy-soft)}
.tool-row .del{border:1px solid var(--border);background:#fff;border-radius:8px;height:37px;
  cursor:pointer;color:#b03a2e;font-size:17px;line-height:1;font-family:inherit}
.tool-row .del:hover{background:#fdecea;border-color:#f0b7b1}
.tool-row-head{display:grid;grid-template-columns:minmax(0,1fr) 84px 74px 32px;gap:9px;
  font-size:12px;color:var(--muted);text-transform:uppercase;letter-spacing:.4px;margin-bottom:7px}
.tool-btn{display:inline-flex;align-items:center;gap:7px;border:1px dashed var(--navy-soft);
  background:#f7faff;color:var(--navy);border-radius:8px;padding:9px 16px;font-size:14px;
  font-family:inherit;cursor:pointer;font-weight:600}
.tool-btn:hover{background:#eef5ff}
.tool-btn.ghost{border-style:solid;border-color:var(--border);background:#fff;color:var(--muted);font-weight:500}

/* ---------- 结果 ---------- */
.tool-result{margin-top:22px;border-radius:var(--radius);overflow:hidden;border:1px solid #cfdcef}
.tool-result .rh{background:linear-gradient(135deg,var(--navy),var(--navy-soft));color:#fff;
  padding:13px 20px;font-size:14px;font-weight:600;letter-spacing:.3px}
.tool-result .rb{background:#fff;padding:20px}
.tool-metrics{display:grid;grid-template-columns:repeat(auto-fit,minmax(140px,1fr));gap:14px}
.tool-metric{background:#f7faff;border:1px solid #e4edfa;border-radius:9px;padding:14px 16px}
.tool-metric .k{font-size:12.5px;color:var(--muted);margin-bottom:5px}
.tool-metric .v{font-size:24px;font-weight:700;color:var(--navy);line-height:1.2}
.tool-metric .v small{font-size:14px;font-weight:600;color:var(--muted);margin-left:2px}
.tool-metric.hi{background:#fff6e9;border-color:#f8dcb4}
.tool-metric.hi .v{color:#b25c00}
.tool-verdict{margin-top:16px;padding:15px 18px;border-radius:9px;background:#eef7f1;
  border:1px solid #c9e6d4;font-size:15px;color:#14532d}
.tool-verdict b{color:#0f5132}
.tool-notes{margin-top:14px;font-size:13px;color:var(--muted);line-height:1.75}
.tool-notes li{position:relative;padding-left:15px;margin:4px 0}
.tool-notes li:before{content:"";position:absolute;left:0;top:9px;width:5px;height:5px;
  border-radius:50%;background:var(--orange)}

/* ---------- 转化区 ---------- */
.tool-cta{margin-top:20px;background:linear-gradient(135deg,#0b2d5c,#16407c);color:#fff;
  border-radius:var(--radius);padding:22px 24px}
.tool-cta h3{font-size:17px;margin-bottom:7px;color:#fff}
.tool-cta p{color:#c8d6ea;font-size:14px;margin-bottom:15px}
.tool-cta .row{display:flex;gap:11px;flex-wrap:wrap}
.tool-cta a{display:inline-flex;align-items:center;gap:8px;padding:11px 20px;border-radius:8px;
  font-size:14.5px;font-weight:600;transition:.15s}
.tool-cta .wa{background:var(--wa);color:#fff}
.tool-cta .wa:hover{background:#1eb455;color:#fff}
.tool-cta .mail{background:rgba(255,255,255,.12);color:#fff;border:1px solid rgba(255,255,255,.28)}
.tool-cta .mail:hover{background:rgba(255,255,255,.2);color:#fff}

/* ---------- 正文内容 ---------- */
.tool-content{padding:30px 0 45px}
.tool-content h2{font-size:21px;color:var(--navy);margin:30px 0 12px}
.tool-content h2:first-child{margin-top:0}
.tool-content h3{font-size:16.5px;color:var(--navy);margin:20px 0 8px}
.tool-content p{margin-bottom:13px;color:#2c3a4f}
.tool-content ul{margin:0 0 15px}
.tool-content li{position:relative;padding-left:17px;margin:7px 0;color:#2c3a4f}
.tool-content li:before{content:"";position:absolute;left:0;top:10px;width:6px;height:6px;
  border-radius:50%;background:var(--orange)}
.tool-content table{width:100%;border-collapse:collapse;margin:14px 0 20px;font-size:14.5px}
.tool-content th,.tool-content td{padding:10px 13px;border:1px solid var(--border);text-align:left}
.tool-content th{background:#f2f6fc;color:var(--navy);font-weight:600}
.tool-content tr:nth-child(even) td{background:#fafcff}

/* ---------- 侧栏 ---------- */
.tool-side .box{background:#fff;border:1px solid var(--border);border-radius:var(--radius);
  padding:20px;margin-bottom:18px}
.tool-side h3{font-size:15.5px;color:var(--navy);margin-bottom:11px}
.tool-side ul li{margin:8px 0;font-size:14px}
.tool-side ul li a{color:#2c3a4f;display:flex;gap:8px;align-items:flex-start}
.tool-side ul li a:before{content:"›";color:var(--orange);font-weight:700}
.tool-side ul li a:hover{color:var(--orange)}
.tool-side .contact-line{display:flex;gap:9px;align-items:center;font-size:14px;margin:9px 0}
.tool-side .contact-line span{color:var(--muted);min-width:64px;font-size:13px}

/* ---------- 工具列表页 ---------- */
.tools-index{padding:36px 0 50px}
.tools-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(275px,1fr));gap:20px}
.tool-tile{display:block;background:#fff;border:1px solid var(--border);border-radius:var(--radius);
  padding:22px;box-shadow:var(--shadow);transition:.18s}
.tool-tile:hover{transform:translateY(-3px);box-shadow:var(--shadow-lg);border-color:#c9d8ec}
.tool-tile .ico{width:42px;height:42px;border-radius:10px;background:#eef4fd;color:var(--navy);
  display:flex;align-items:center;justify-content:center;font-weight:700;font-size:17px;margin-bottom:13px}
.tool-tile h2{font-size:17px;color:var(--navy);margin-bottom:7px}
.tool-tile p{font-size:14px;color:var(--muted);line-height:1.62}
.tool-tile .go{margin-top:13px;font-size:13.5px;color:var(--orange);font-weight:600}

/* ---------- 移动端 ---------- */
@media(max-width:960px){
  .tool-layout{grid-template-columns:1fr}
  .tool-side{order:2}
}
@media(max-width:600px){
  .tool-hero{padding:26px 0 24px}
  .tool-hero h1{font-size:23px}
  .tool-card{padding:18px}
  .tool-metric .v{font-size:20px}
  .tool-cta .row a{flex:1 1 100%;justify-content:center}
  .tool-content h2{font-size:19px}
  .tools-hero h1{font-size:25px}
}

/* ---------- 窄屏手机 ≤480px：重点保障可用性 ---------- */
@media(max-width:480px){
  /* 输入控件字号 ≥16px —— 低于 16px 时 iOS Safari 聚焦会自动放大整页 */
  .tool-field input,.tool-field select{font-size:16px;padding:11px 12px}
  .tool-field label{font-size:13px}
  .tool-field .hint{display:block;margin:2px 0 0;font-size:11.5px}

  /* 选型表：设备下拉独占一行，数量/功率/删除排到下一行 */
  .tool-row-head,.tool-row{grid-template-columns:1fr 1fr 34px;gap:8px}
  .tool-row-head span:nth-child(1),
  .tool-row .ap{grid-column:1 / -1}
  .tool-row select,.tool-row input{font-size:16px;padding:10px 11px}
  .tool-row .del{height:42px;font-size:18px}

  /* 结果指标固定两列，避免每行只剩一张卡片 */
  .tool-metrics{grid-template-columns:1fr 1fr;gap:10px}
  .tool-metric{padding:11px 13px}
  .tool-metric .k{font-size:11.5px}
  .tool-metric .v{font-size:19px}
  .tool-metric .v small{font-size:12px}

  /* 分段按钮与操作按钮铺满整行，方便单手点按 */
  .tool-seg{width:100%}
  .tool-seg button{flex:1;padding:11px 8px;font-size:13.5px;white-space:nowrap}
  .tool-btn{width:100%;justify-content:center;padding:11px 16px}

  /* 正文表格横向滚动，避免撑破布局 */
  .tool-content table{display:block;overflow-x:auto;-webkit-overflow-scrolling:touch}
  .tool-content th,.tool-content td{white-space:nowrap}

  .tool-card h2{font-size:16.5px}
  .tool-card .sub{font-size:13.5px}
  .tool-notes{font-size:12.5px}
  .tool-verdict{font-size:14px;padding:13px 15px}
  .tools-hero{padding:28px 0 26px}
  .tools-hero h1{font-size:22px}
  .tools-grid{grid-template-columns:1fr}
  .tool-tile{padding:18px}
  .tool-lang{flex-wrap:wrap}
}

/* ---------- 结果：警告态（压降超限等） ---------- */
.tool-verdict.warn{background:#fdf3e2;border-color:#f0d7a4;color:#7a4b00}
.tool-verdict.warn b{color:#8a5200}

/* ---------- 工具页语言切换 ---------- */
.tool-lang{display:flex;gap:7px;margin-bottom:14px}
.tool-lang a{padding:5px 13px;border-radius:6px;font-size:13px;color:#c8d6ea;
  border:1px solid rgba(255,255,255,.22);text-decoration:none}
.tool-lang a:hover{background:rgba(255,255,255,.12);color:#fff}
.tool-lang a[aria-current="true"]{background:rgba(255,255,255,.17);color:#fff;font-weight:600}

/* ---------- 工具索引页顶部 ---------- */
.tools-hero{background:var(--navy);color:#fff;padding:40px 0 36px}
.tools-hero h1{font-size:31px;margin-bottom:10px;font-weight:700}
.tools-hero p{color:#c8d6ea;max-width:700px}

/* ---------- 结果区：推荐机型（算完直接给产品链接） ---------- */
.tool-pick{margin-top:14px;padding:14px 18px;border-radius:9px;background:#f0f6fd;
  border:1px solid #cfe0f5;display:flex;gap:12px;align-items:center;flex-wrap:wrap}
.tool-pick .lab{font-size:13px;color:var(--muted);flex:0 0 auto}
.tool-pick .links{display:flex;gap:9px;flex-wrap:wrap}
.tool-pick a{font-size:15px;font-weight:600;color:var(--navy);border-bottom:1px dashed #b9cfe8;
  padding-bottom:1px;transition:.15s}
.tool-pick a:hover{color:var(--orange);border-bottom-color:var(--orange)}
@media(max-width:480px){
  .tool-pick{padding:12px 14px;display:block}
  .tool-pick .lab{display:block;margin-bottom:7px}
  .tool-pick .links{display:block}
  .tool-pick a{display:block;font-size:14.5px;line-height:1.5;margin-bottom:6px}
}