/* ============================================================
   工程机械滤芯店铺 · 诊断报告样式
   工业风：深蓝灰 + 安全橙；纯 CSS，无外部依赖
   ============================================================ */
:root{
  --ink:#1c2733;
  --ink-2:#42525f;
  --paper:#ffffff;
  --bg:#f4f6f8;
  --line:#e3e8ee;
  --navy:#14324f;
  --navy-2:#1e4a75;
  --orange:#ff8c1a;
  --orange-deep:#e67000;
  --green:#1f9d55;
  --red:#d64545;
  --radius:14px;
  --shadow:0 10px 30px rgba(20,50,79,.10);
  --font:-apple-system,BlinkMacSystemFont,"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans CJK SC",sans-serif;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;font-family:var(--font);color:var(--ink);background:var(--bg);line-height:1.75;font-size:16px;-webkit-font-smoothing:antialiased}
img{max-width:100%}
.wrap{max-width:1060px;margin:0 auto;padding:0 22px}

/* ---------- 顶部导航 ---------- */
.topbar{position:sticky;top:0;z-index:50;background:rgba(255,255,255,.92);backdrop-filter:blur(8px);border-bottom:1px solid var(--line)}
.topbar-inner{display:flex;align-items:center;gap:16px;height:58px}
.brand{display:flex;align-items:center;gap:9px;text-decoration:none;color:var(--ink);font-weight:700;white-space:nowrap}
.brand-mark{display:inline-flex;align-items:center;justify-content:center;width:30px;height:30px;border-radius:8px;background:var(--navy);color:#fff;font-size:15px}
.brand-text{font-size:15px}
.nav{display:flex;gap:4px;margin-left:auto;flex-wrap:wrap}
.nav a{text-decoration:none;color:var(--ink-2);font-size:14px;padding:6px 10px;border-radius:8px;transition:.15s}
.nav a:hover{color:var(--navy);background:#eef2f6}
.nav a.active{color:#fff;background:var(--navy)}
.nav-toggle{display:none;margin-left:auto;background:none;border:1px solid var(--line);border-radius:8px;font-size:18px;padding:4px 10px;cursor:pointer}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:6px;border:none;cursor:pointer;font-family:var(--font);font-size:14px;font-weight:600;border-radius:10px;padding:10px 18px;text-decoration:none;transition:.15s}
.btn-primary{background:var(--orange);color:#fff}
.btn-primary:hover{background:var(--orange-deep)}
.btn-ghost{background:#fff;color:var(--navy);border:1px solid #c9d4de}
.btn-ghost:hover{border-color:var(--navy)}
.btn-print{margin-left:auto;background:var(--navy);color:#fff;padding:8px 14px;font-size:13px;white-space:nowrap}
.btn-print:hover{background:var(--navy-2)}
.btn-sm{padding:6px 12px;font-size:13px}

/* ---------- Hero ---------- */
.hero{background:linear-gradient(160deg,var(--navy) 0%,var(--navy-2) 70%,#275e8c 100%);color:#fff;padding:64px 0 56px}
.kicker{text-transform:uppercase;letter-spacing:.14em;font-size:12px;font-weight:700;color:var(--orange);margin:0 0 10px}
.hero h1{font-size:40px;line-height:1.25;margin:0 0 14px;letter-spacing:.01em}
.hero-sub{font-size:16px;color:#cfe0ef;margin:0 0 26px}
.hero-sub em{font-style:normal;color:#fff;border-bottom:2px solid var(--orange)}
.hero-actions{display:flex;gap:12px;flex-wrap:wrap;margin-bottom:44px}
.hero-actions .btn-primary{font-size:15px;padding:12px 22px}
.hero-actions .btn-ghost{background:transparent;color:#fff;border-color:rgba(255,255,255,.45)}
.hero-actions .btn-ghost:hover{border-color:#fff;background:rgba(255,255,255,.08)}
.verdict-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
.verdict-card{background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.16);border-radius:var(--radius);padding:20px 18px;position:relative}
.v-num{position:absolute;top:14px;right:16px;font-size:13px;font-weight:800;color:rgba(255,255,255,.45)}
.verdict-card h3{margin:0 0 8px;font-size:17px}
.verdict-card p{margin:0;font-size:14px;color:#d7e4ef}
.meta-note{margin-top:26px;font-size:13px;color:#b9cfe2;background:rgba(0,0,0,.18);border-radius:10px;padding:12px 16px;border-left:3px solid var(--orange)}

/* ---------- 通用 section ---------- */
.section{padding:56px 0}
.section-alt{background:var(--paper);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.section h2{font-size:28px;margin:0 0 6px;color:var(--navy)}
.lead{margin:0 0 30px;color:var(--ink-2);font-size:15px}

/* ---------- 自查打分 ---------- */
.score-board{background:var(--paper);border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow);padding:22px;margin-bottom:26px;display:flex;align-items:center;gap:24px;flex-wrap:wrap}
.score-ring{display:flex;align-items:center;gap:20px;flex:1;min-width:280px}
.ring{width:104px;height:104px;border-radius:50%;background:conic-gradient(var(--orange) calc(var(--p,0)*1%),#e8edf2 0);display:flex;flex-direction:column;align-items:center;justify-content:center;position:relative}
.ring::before{content:"";position:absolute;inset:9px;border-radius:50%;background:#fff}
.ring span{position:relative;font-size:30px;font-weight:800;color:var(--navy)}
.ring small{position:relative;font-size:12px;color:var(--ink-2)}
.score-text strong{font-size:17px;color:var(--navy);display:block}
.score-text p{margin:4px 0 0;font-size:13.5px;color:var(--ink-2);max-width:420px}
.check-grid{display:grid;grid-template-columns:1fr 1fr;gap:14px}
.check-card{background:var(--paper);border:1px solid var(--line);border-radius:var(--radius);padding:16px 18px}
.check-card .q{font-size:14.5px;font-weight:600;margin:0 0 10px}
.check-card .q small{display:block;font-weight:400;color:var(--ink-2);font-size:12.5px;margin-top:2px}
.rate-row{display:flex;gap:8px}
.rate-btn{flex:1;border:1px solid var(--line);background:#fff;border-radius:8px;padding:7px 0;font-size:13px;cursor:pointer;font-family:var(--font);color:var(--ink-2);transition:.12s}
.rate-btn:hover{border-color:var(--orange);color:var(--orange-deep)}
.rate-btn.on{background:var(--orange);border-color:var(--orange);color:#fff;font-weight:700}

/* ---------- 模块 ---------- */
.module{background:var(--paper);border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow);margin-bottom:22px;overflow:hidden}
.module-head{display:flex;align-items:center;gap:12px;padding:16px 22px;background:linear-gradient(90deg,#f2f6fa,#fff)}
.m-num{display:inline-flex;align-items:center;justify-content:center;width:44px;height:44px;border-radius:10px;background:var(--navy);color:#fff;font-weight:800;font-size:15px;flex-shrink:0}
.module-head h3{margin:0;font-size:19px;color:var(--navy)}
.module-body{padding:6px 22px 18px}
.blk{margin:18px 0}
.blk h4{margin:0 0 8px;font-size:15.5px;color:var(--orange-deep)}
.blk p{margin:6px 0;font-size:14.5px}
.blk ol,.blk ul{margin:8px 0;padding-left:22px;font-size:14.5px}
.blk li{margin:6px 0}
.title-sample{background:#0f2233;color:#d7e8f5;border-radius:10px;padding:12px 16px;font-size:13.5px;overflow-x:auto;white-space:normal;font-family:var(--font)}
.problems li strong{color:var(--red)}
.examples li{list-style:disc}
.tip{font-size:13px;color:var(--ink-2);background:#fff7ec;border:1px solid #ffe0b8;border-radius:8px;padding:9px 12px}
.warn{font-size:13px;color:#8a3d00;background:#fff3e8;border:1px solid #ffd9b3;border-radius:8px;padding:10px 12px}

/* ---------- 表格 ---------- */
.table-wrap{overflow-x:auto;border:1px solid var(--line);border-radius:10px}
table{width:100%;border-collapse:collapse;font-size:14px;min-width:560px}
th{background:var(--navy);color:#fff;text-align:left;padding:10px 12px;font-weight:600;white-space:nowrap}
td{padding:10px 12px;border-top:1px solid var(--line);vertical-align:top}
tbody tr:nth-child(even){background:#f7f9fb}
tbody tr:hover{background:#eef4fa}

/* ---------- 行动清单 ---------- */
.progress-summary{display:flex;gap:14px;flex-wrap:wrap;margin-bottom:22px}
.prog-card{flex:1;min-width:180px;background:var(--paper);border:1px solid var(--line);border-radius:12px;padding:12px 16px}
.prog-card .bar{height:8px;background:#e8edf2;border-radius:99px;overflow:hidden;margin:8px 0 4px}
.prog-card .bar i{display:block;height:100%;width:0%;background:var(--orange);border-radius:99px;transition:width .3s}
.prog-card .num{font-size:13px;color:var(--ink-2)}
.prog-card h4{margin:0;font-size:14px}
.action-group{margin-bottom:26px}
.action-group>h3{display:flex;align-items:center;gap:10px;font-size:18px;color:var(--navy);margin:0 0 12px}
.pill{display:inline-flex;align-items:center;justify-content:center;border-radius:6px;font-size:12px;font-weight:800;padding:3px 9px;color:#fff}
.pill-p0{background:var(--red)}
.pill-p1{background:var(--orange-deep)}
.pill-p2{background:var(--navy-2)}
.actions{list-style:none;margin:0;padding:0}
.actions li{display:flex;gap:12px;align-items:flex-start;background:var(--paper);border:1px solid var(--line);border-radius:10px;padding:12px 16px;margin-bottom:8px;cursor:pointer;transition:.15s}
.actions li:hover{border-color:var(--orange)}
.actions li.done{background:#f0f7f1;border-color:#bfe3c8}
.actions li.done .a-text{text-decoration:line-through;color:#7d8b95}
.actions input{width:18px;height:18px;margin-top:3px;accent-color:var(--orange);cursor:pointer;flex-shrink:0}
.a-text{font-size:14.5px}
.a-text b{color:var(--navy)}

/* ---------- 合规 ---------- */
.compliance-list{list-style:none;padding:0;margin:0}
.compliance-list li{background:var(--paper);border:1px solid var(--line);border-left:4px solid var(--orange);border-radius:10px;padding:13px 16px;margin-bottom:10px;font-size:14.5px}

/* ---------- 页脚 ---------- */
.footer{background:var(--navy);color:#b9cfe2;font-size:13px;padding:30px 0 34px;text-align:center}
.footer p{margin:4px 0}
.back-top{display:inline-block;margin-top:12px;color:#fff;text-decoration:none;border:1px solid rgba(255,255,255,.4);border-radius:8px;padding:6px 14px;font-size:13px}
.back-top:hover{background:rgba(255,255,255,.12)}

/* ---------- 响应式 ---------- */
@media (max-width:860px){
  .nav{display:none;position:absolute;top:58px;left:0;right:0;background:#fff;border-bottom:1px solid var(--line);flex-direction:column;padding:10px;box-shadow:var(--shadow)}
  .nav.open{display:flex}
  .nav-toggle{display:inline-block}
  .btn-print{display:none}
  .verdict-grid{grid-template-columns:1fr}
  .check-grid{grid-template-columns:1fr}
  .hero h1{font-size:30px}
  .hero{padding:44px 0 40px}
  .section{padding:40px 0}
}
@media (max-width:520px){
  .brand-text{font-size:13px}
  .hero-sub{font-size:14.5px}
}

/* ---------- 打印 ---------- */
@media print{
  .topbar,.nav-toggle,.btn,.hero-actions,.back-top,.footer{display:none !important}
  body{background:#fff;font-size:13px}
  .hero{background:#fff;color:#000;padding:20px 0}
  .hero h1{color:var(--navy);font-size:26px}
  .hero-sub{color:#333}
  .verdict-card{background:#f7f9fb;color:#000}
  .verdict-card p{color:#333}
  .meta-note{color:#333;background:#f7f9fb;border-left:3px solid var(--orange)}
  .section{padding:20px 0;page-break-inside:avoid}
  .module,.action-group{page-break-inside:avoid}
  .module-head{background:#f2f6fa;-webkit-print-color-adjust:exact;print-color-adjust:exact}
  th{background:var(--navy);color:#fff;-webkit-print-color-adjust:exact;print-color-adjust:exact}
  .actions li{break-inside:avoid}
  .title-sample{color:#0f2233;background:#f2f6fa;border:1px solid #ddd}
}