:root{
  --brand:#0e7c86; --brand-d:#0b6169; --brand-ink:#0b3b40; --accent:#f59e0b;
  --ink:#0f172a; --muted:#64748b; --line:#e6ebf1; --bg:#f7fafc; --card:#fff;
  --soft:#f0fbfa; --radius:14px;
  --shadow:0 1px 2px rgba(15,23,42,.04),0 8px 24px rgba(15,23,42,.06);
}
*{box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:80px}
body{margin:0;font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;
  color:var(--ink);background:var(--bg);line-height:1.8;font-size:16px;-webkit-font-smoothing:antialiased}
a{color:var(--brand);text-decoration:none;transition:color .15s}
a:hover{color:var(--brand-d);text-decoration:underline}
img{max-width:100%;height:auto;display:block}
figure{margin:0}
.container{max-width:920px;margin:0 auto;padding:0 20px}
.skip{position:absolute;left:12px;top:-48px;z-index:100;background:var(--ink);color:#fff;padding:8px 14px;border-radius:9px}
.skip:focus{top:10px;color:#fff;text-decoration:none}

/* header */
.site-header{position:sticky;top:0;z-index:20;background:rgba(255,255,255,.92);backdrop-filter:saturate(1.4) blur(8px);
  border-bottom:1px solid var(--line)}
.header-inner{display:flex;align-items:center;justify-content:space-between;gap:16px;height:62px}
.brand{display:flex;align-items:center;gap:9px;font-weight:800;color:var(--ink);font-size:17px}
.brand:hover{text-decoration:none;color:var(--ink)}
.brand-badge{display:inline-grid;place-items:center;width:28px;height:28px;border-radius:9px;color:#fff;font-size:15px;
  background:linear-gradient(135deg,var(--brand),#14b8a6)}
.site-nav{display:flex;gap:6px;flex-wrap:wrap}
.site-nav a{padding:7px 13px;border-radius:9px;color:#334155;font-size:15px;font-weight:600}
.site-nav a:hover{background:#eef7f7;text-decoration:none;color:var(--brand-d)}
.site-nav a.on{background:var(--brand);color:#fff}

/* hero */
.hero{padding:52px 0 22px;text-align:center}
.hero h1{margin:0 0 12px;font-size:34px;line-height:1.3;letter-spacing:-.4px}
.hero-sub{margin:0;color:var(--muted);font-size:17px}
.hero-intro{max-width:660px;margin:14px auto 0;color:#475569;font-size:15.5px}
.hero-media{margin:22px 0 10px}
.hero-media img,.article-media img{width:100%;border-radius:var(--radius);box-shadow:var(--shadow);
  border:1px solid var(--line)}
.hero-media figcaption,.article-media figcaption{color:var(--muted);font-size:13px;text-align:center;margin-top:8px}
.article-media{margin:18px 0 8px}

/* page */
.page,.block{margin:26px 0}
.page h1{font-size:29px;line-height:1.4;margin:6px 0 14px;letter-spacing:-.4px}
.block h2{font-size:22px;margin:34px 0 12px;padding-left:12px;border-left:4px solid var(--brand)}
.page > .block:first-of-type h2{margin-top:18px}
.lead{font-size:17px;color:#475569;background:linear-gradient(135deg,#f0fbfa,#f7fbf7);
  border:1px solid #d9eef0;border-radius:var(--radius);padding:16px 18px;margin:0 0 14px}
.meta{color:var(--muted);font-size:14px;margin:8px 0 18px}
.meta time{color:#475569}
.meta .dot{margin:0 7px;color:#cbd5e1}
.meta.center{text-align:center}
.block p{color:#334155;margin:10px 0}
.article .block p,.page .block p{font-size:16px}

/* badges / tags */
.cat-badge{display:inline-block;padding:2px 10px;border-radius:999px;background:var(--soft);color:var(--brand-d);
  border:1px solid #cfebeb;font-size:12.5px;font-weight:700;line-height:1.7;white-space:nowrap}
a.cat-badge:hover{background:#e2f6f4;text-decoration:none}
.card .cat-badge{margin-bottom:8px}

.article-tags{display:flex;align-items:center;flex-wrap:wrap;gap:8px;margin:0 0 18px}
.tag-label{font-size:12.5px;color:var(--muted);font-weight:700}
.tag-list{display:flex;flex-wrap:wrap;gap:6px;list-style:none;margin:0;padding:0}
.tag-list li{margin:0}
.tag{display:inline-block;padding:2px 9px;border-radius:999px;background:#f1f5f9;
  border:1px solid #e2e8f0;color:#475569;font-size:12.5px;line-height:1.7}

/* toc */
.toc{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:14px 18px;margin:6px 0 22px;box-shadow:var(--shadow)}
.toc-h{margin:0 0 8px;font-weight:800;font-size:15px;color:var(--ink)}
.toc ul{margin:0;padding-left:18px;columns:2;column-gap:26px}
.toc li{margin:3px 0;font-size:14.5px}
@media(max-width:560px){.toc ul{columns:1}}

/* cards */
.card-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(240px,1fr));gap:14px;margin:14px 0}
.card{display:block;background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:16px 18px;
  box-shadow:var(--shadow);transition:transform .15s,box-shadow .15s}
.card:hover{transform:translateY(-3px);box-shadow:0 10px 28px rgba(15,23,42,.1);text-decoration:none}
.card h3{margin:0 0 6px;font-size:17px;color:var(--ink);line-height:1.55}
.card p{margin:0;color:var(--muted);font-size:14.5px}
.card:hover h3{color:var(--brand-d)}
.cat-card p{font-size:14px}
.tool-grid{grid-template-columns:repeat(2,1fr)}
.section-desc{color:var(--muted);font-size:14.5px;margin:0 0 6px}

/* lists */
.post-list{list-style:none;padding:0;margin:14px 0}
.post-list li{position:relative;background:var(--card);border:1px solid var(--line);border-radius:var(--radius);
  padding:14px 18px;margin:10px 0;box-shadow:var(--shadow)}
.post-list a{font-size:17px;font-weight:700}
.post-list p{margin:5px 0 0;color:#475569;font-size:14.5px}
.post-list .date{color:var(--muted);font-size:13px}
.links{margin:10px 0;padding-left:20px}
.links li{margin:6px 0}
.more{margin:10px 0 0}
.more a{font-weight:700}

/* prose list */
.list{margin:12px 0;padding-left:0;list-style:none;counter-reset:li}
.list li{position:relative;padding:8px 12px 8px 34px;margin:6px 0;color:#334155;background:#fff;
  border:1px solid var(--line);border-radius:10px}
.list li:before{counter-increment:li;content:"✓";position:absolute;left:12px;top:8px;color:var(--brand);font-weight:800}

/* steps */
.steps{margin:12px 0;padding-left:0;list-style:none;counter-reset:st}
.steps li{position:relative;padding:10px 14px 10px 44px;margin:8px 0;background:var(--card);border:1px solid var(--line);
  border-radius:11px;color:#334155}
.steps li:before{counter-increment:st;content:counter(st);position:absolute;left:12px;top:9px;width:22px;height:22px;
  display:grid;place-items:center;border-radius:50%;background:var(--brand);color:#fff;font-size:13px;font-weight:700}

/* table */
.table-wrap{overflow-x:auto;-webkit-overflow-scrolling:touch;margin:14px 0;border-radius:var(--radius);
  box-shadow:var(--shadow);border:1px solid var(--line)}
.tbl{width:100%;min-width:560px;border-collapse:collapse;font-size:14.5px;background:var(--card)}
.tbl th,.tbl td{padding:10px 12px;text-align:left;border-bottom:1px solid var(--line);vertical-align:top}
.tbl th{background:#f1f7f8;font-weight:700;color:#334155}
.tbl tr:last-child td{border-bottom:0}

/* breadcrumb */
.breadcrumb{font-size:13.5px;color:var(--muted);margin:18px 0 6px}
.breadcrumb a{color:var(--muted)}
.breadcrumb a:hover{color:var(--brand)}
.breadcrumb .sep{margin:0 7px;color:#cbd5e1}

/* filter nav */
.filter-nav{display:flex;flex-wrap:wrap;gap:8px;margin:8px 0 18px}
.filter-nav a{padding:6px 12px;border:1px solid var(--line);border-radius:999px;background:#fff;
  color:#334155;font-size:14px;font-weight:600}
.filter-nav a:hover{border-color:var(--brand);color:var(--brand-d);text-decoration:none;background:var(--soft)}

/* note / faq */
.note{background:#fffbeb;border:1px solid #fde68a;color:#78350f;border-radius:12px;padding:12px 14px;margin:14px 0;font-size:14.5px}
.faq{margin:6px 0}
.faq-item{background:#fff;border:1px solid var(--line);border-radius:12px;padding:12px 16px;margin:10px 0}
.faq-item h3{margin:0 0 6px;font-size:16px;color:var(--ink);line-height:1.55}
.faq-item p{margin:0;color:#475569;font-size:15px}
.article-note{color:var(--muted);font-size:13.5px;margin:24px 0 0;padding-top:14px;border-top:1px solid var(--line)}

/* footer */
.site-footer{margin-top:56px;background:var(--brand-ink);color:#cbd5e1;padding:34px 0}
.site-footer .container{display:flex;flex-direction:column;gap:8px}
.foot-brand{font-weight:800;color:#fff;font-size:17px;margin:0}
.foot-desc{margin:0;color:#94a3b8;font-size:14.5px;max-width:640px}
.foot-nav{display:flex;gap:16px;flex-wrap:wrap;margin:6px 0}
.foot-nav a{color:#cbd5e1;font-size:14.5px}
.foot-nav a:hover{color:#fff}
.foot-legal{margin:10px 0 0;color:#94a3b8;font-size:13px;line-height:1.7}

/* buttons */
.btn{display:inline-block;appearance:none;border:1px solid var(--brand);border-radius:10px;background:var(--brand);
  color:#fff;font:inherit;font-weight:700;font-size:15px;padding:10px 18px;cursor:pointer;transition:background .15s}
.btn:hover{background:var(--brand-d);border-color:var(--brand-d);text-decoration:none;color:#fff}
.btn.ghost{background:#fff;color:var(--brand-d)}
.btn.ghost:hover{background:var(--soft)}

/* help navigator */
.help-cta{display:flex;align-items:center;justify-content:space-between;gap:18px;
  background:linear-gradient(135deg,#f0fbfa,#fff7ed);border:1px solid #d9eef0;
  border-radius:var(--radius);padding:18px 20px;box-shadow:var(--shadow);margin:18px 0}
.help-cta h2{margin:0 0 5px;padding:0;border:0;font-size:20px}
.help-cta p{margin:0;color:#475569;font-size:14.5px}
.help-cta .btn{flex:0 0 auto;white-space:nowrap}
.help-card{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);
  padding:20px 22px;box-shadow:var(--shadow);margin:22px 0}
.help-card h2{margin:4px 0 8px;padding:0;border:0;font-size:22px}
.help-kicker{margin:0;color:var(--brand-d);font-size:12.5px;font-weight:800;letter-spacing:.04em}
.help-signs{margin:4px 0 12px;color:#334155;font-size:15.5px}
.help-now{background:var(--soft);border:1px solid #d9eef0;border-radius:12px;padding:13px 15px;margin:14px 0}
.help-now h3,.help-box h3,.help-contacts h3{font-size:15px;margin:0 0 4px;color:var(--ink)}
.help-now .steps{margin:8px 0 0}
.help-now .steps li{margin:6px 0;background:#fff}
.help-grid{display:grid;grid-template-columns:1fr 1fr;gap:12px;margin:12px 0}
.help-box{background:#f8fafc;border:1px solid var(--line);border-radius:12px;padding:12px 14px}
.help-box-warn{background:#fff7ed;border-color:#fed7aa}
.plain-list{list-style:none;margin:8px 0 0;padding:0}
.plain-list li{position:relative;padding-left:16px;margin:7px 0;color:#334155;font-size:14.5px;line-height:1.7}
.plain-list li:before{content:"";position:absolute;left:0;top:.72em;width:6px;height:6px;border-radius:50%;background:var(--brand)}
.help-box-warn .plain-list li:before{background:#f97316}
.help-contacts{display:flex;flex-wrap:wrap;align-items:center;gap:8px;margin:12px 0 6px}
.help-contacts h3{margin:0 6px 0 0}
.help-contacts a{display:inline-flex;align-items:baseline;gap:7px;background:#fff;border:1px solid var(--line);
  border-radius:999px;padding:6px 12px;color:#334155;font-size:13.5px}
.help-contacts a:hover{border-color:var(--brand);background:var(--soft);text-decoration:none}
.help-contacts a strong{color:var(--brand-d);font-size:16px}
.help-note{margin:12px 0 0;background:#fffbeb;border:1px solid #fde68a;border-radius:10px;
  padding:10px 12px;color:#78350f;font-size:14px}
.help-links{margin:14px 0 0;padding-top:10px;border-top:1px solid var(--line);font-size:14px;color:var(--muted)}
.help-small{color:var(--muted);font-size:13.5px;margin:10px 0 0}
.emergency{background:linear-gradient(135deg,#f0fbfa,#f7fbf7);border:1px solid #d9eef0;
  border-radius:var(--radius);padding:16px 18px;box-shadow:var(--shadow)}
.emergency h2{margin:0 0 10px}
.hotline-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:10px;margin:12px 0 0}
.hotline{display:block;background:#fff;border:1px solid var(--line);border-radius:12px;
  padding:11px 13px;color:#334155;transition:transform .15s,box-shadow .15s}
.hotline:hover{transform:translateY(-2px);box-shadow:var(--shadow);text-decoration:none;border-color:#b9e3e3}
.hotline strong{display:block;font-size:21px;line-height:1.25;color:var(--brand-d)}
.hotline span{display:block;font-weight:700;font-size:13.5px;margin-top:1px}
.hotline p{margin:3px 0 0;font-size:12.5px;line-height:1.6;color:var(--muted)}

/* printable pack */
.print-toolbar{display:flex;align-items:center;flex-wrap:wrap;gap:12px;background:#fff;
  border:1px solid var(--line);border-radius:12px;padding:12px 14px;margin:10px 0 0;box-shadow:var(--shadow)}
.print-toolbar p{margin:0;color:var(--muted);font-size:13.5px;flex:1 1 240px}
.print-sheet{background:#fff;border:1px solid var(--line);border-radius:var(--radius);
  padding:22px;box-shadow:var(--shadow);margin:16px 0}
.print-sheet .block{margin:18px 0}
.print-sheet .toc{box-shadow:none}
.print-only{display:none}
.template-box{background:#f8fafc;border:1px dashed #94a3b8;border-radius:12px;padding:16px;
  margin:14px 0;overflow-x:auto}
.template-text{font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;
  font-size:12.5px;line-height:1.7;white-space:pre-wrap;word-break:break-word;margin:0;color:#1e293b}

/* quiz */
.quiz{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:16px 18px;
  box-shadow:var(--shadow);margin:14px 0}
.quiz-list{margin:0;padding-left:0;list-style:none;counter-reset:quiz}
.quiz-list li{counter-increment:quiz;position:relative;margin:10px 0;padding:1px 0 1px 34px}
.quiz-list li:before{content:counter(quiz);position:absolute;left:0;top:2px;width:24px;height:24px;
  display:grid;place-items:center;border-radius:50%;background:var(--soft);color:var(--brand-d);
  font-size:12.5px;font-weight:800}
.quiz-option{display:flex;align-items:flex-start;gap:10px;color:#334155;font-size:15.5px;line-height:1.7;cursor:pointer}
.quiz-option input{width:18px;height:18px;margin:4px 0 0;accent-color:var(--brand);flex:0 0 auto}
.quiz-actions{display:flex;flex-wrap:wrap;gap:10px;margin:18px 0 4px}
.quiz-result{background:#fff;border:1px solid var(--line);border-left:5px solid var(--muted);
  border-radius:var(--radius);padding:16px 18px;margin:18px 0;box-shadow:var(--shadow)}
.quiz-result[hidden]{display:none}
.quiz-result h2{border:0;padding:0;margin:4px 0 8px;font-size:21px}
.quiz-score{margin:0 0 4px;color:var(--muted);font-size:14px}
.quiz-advice{margin:8px 0;color:#334155}
.quiz-result.level-low{border-left-color:#10b981;background:#f0fdf9}
.quiz-result.level-mid{border-left-color:var(--accent);background:#fffbeb}
.quiz-result.level-high{border-left-color:#f97316;background:#fff7ed}
.quiz-result.level-extreme{border-left-color:#dc2626;background:#fef2f2}
.quiz-result.level-extreme h2{color:#b91c1c}
.quiz-links{font-size:14.5px;margin:10px 0 0}
.quiz-privacy{color:var(--muted);font-size:13px;margin:12px 0 0}

/* search */
.search-form{display:flex;flex-wrap:wrap;gap:10px;margin:6px 0 10px}
.search-form input{flex:1 1 260px;min-width:0;border:1px solid var(--line);border-radius:10px;
  background:#fff;padding:11px 14px;font:inherit;color:#0f172a}
.search-form input:focus{border-color:var(--brand);outline:none;box-shadow:0 0 0 3px rgba(14,124,134,.14)}
.search-hint,.search-count{color:var(--muted);font-size:13.5px;margin:6px 0 14px}
.search-results{margin:18px 0}
.search-list{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:10px}
.search-item{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);
  padding:14px 16px;box-shadow:var(--shadow)}
.search-item h2{font-size:18px;margin:4px 0 6px;padding:0;border:0}
.search-item h2 a{color:#0f172a}
.search-item p{margin:0;color:var(--muted);font-size:14px;line-height:1.65}
.search-type{display:inline-block;background:var(--soft);color:var(--brand-d);border-radius:999px;
  padding:2px 9px;font-size:12px;font-weight:700}
.search-empty{background:var(--soft);border-radius:10px;padding:12px 14px;color:#475569;font-size:14.5px}
.visually-hidden{position:absolute!important;width:1px;height:1px;margin:-1px;padding:0;
  overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap;border:0}

@media print{
  @page{size:A4;margin:12mm}
  .site-header,.site-footer,.skip,.quiz-actions,.quiz-privacy,.article-note,
  .breadcrumb,.toc,.print-toolbar,.help-cta,.related,.filter-nav{display:none!important}
  body{background:#fff;font-size:11.5pt;line-height:1.65}
  .container{max-width:none;padding:0}
  main{margin:0}
  .page,.block{margin:0 0 8mm}
  .page h1{font-size:20pt;margin:0 0 4mm;line-height:1.3}
  .lead{background:#fff;border:1px solid #999;padding:3mm;font-size:10.5pt}
  .meta{font-size:9.5pt;margin:0 0 4mm}
  .article-media,.hero-media{display:none}
  .card,.tbl,.quiz,.quiz-result{box-shadow:none}
  .print-sheet{border:0;padding:0;margin:0;box-shadow:none}
  .print-sheet .block h2{font-size:14pt;border-left:0;padding-left:0;margin:6mm 0 2mm;break-after:avoid}
  .print-sheet .block p,.print-sheet .block li{font-size:10.5pt}
  .steps li,.list li,.help-box,.faq-item{break-inside:avoid}
  .faq{break-inside:avoid}
  .faq-item{padding:1.5mm 2.5mm;margin:1.5mm 0}
  .faq-item h3{font-size:10pt;margin-bottom:.5mm}
  .faq-item p{font-size:9pt;line-height:1.5}
  html[lang="en"] .faq-item h3{font-size:9.5pt}
  html[lang="en"] .faq-item p{font-size:8.5pt;line-height:1.45}
  .table-wrap{border:1px solid #000;box-shadow:none;overflow:visible;border-radius:0}
  .tbl{min-width:0;font-size:9.5pt}
  .tbl thead{display:table-header-group}
  .tbl tr{break-inside:avoid}
  .tbl th,.tbl td{border:1px solid #666;padding:2mm}
  .tbl th{background:#eee}
  .template-box{border:1px solid #000;background:#fff;break-inside:avoid;border-radius:0;overflow:visible;padding:3mm}
  .template-text{font-size:8pt;line-height:1.35}
  .note{background:#fff;border:1px solid #000;color:#000;border-radius:0}
  .print-only{display:block!important}
  .print-sheet-head{display:flex;justify-content:space-between;gap:10mm;border-bottom:1px solid #000;
    padding-bottom:2mm;margin-bottom:4mm;font-size:10pt}
  .print-brand{font-weight:800}
  a{color:#000;text-decoration:none}
}

/* a11y */
:focus-visible{outline:3px solid #f59e0b;outline-offset:2px;border-radius:6px}

/* mobile */
@media(max-width:640px){
  html{scroll-padding-top:160px}
  body{font-size:15.5px;line-height:1.75}
  .container{padding:0 14px}
  .header-inner{height:auto;flex-wrap:wrap;padding:10px 0;gap:8px}
  .site-nav{width:100%;gap:4px}
  .site-nav a{padding:6px 10px;font-size:14px}
  .hero{padding:32px 0 18px}
  .hero h1{font-size:26px}
  .hero-sub{font-size:15.5px}
  .hero-intro{font-size:14.5px}
  .page h1{font-size:23px}
  .block h2{font-size:19px;margin:26px 0 10px;padding-left:10px}
  .lead{font-size:15.5px;padding:13px 14px}
  .steps li{padding:10px 12px 10px 40px}
  .toc{padding:12px 14px}
  .card-grid,.tool-grid{grid-template-columns:1fr;gap:10px}
  .breadcrumb{font-size:12.5px}
  .foot-nav{gap:12px}
  .site-footer{padding:26px 0}
  .help-cta{flex-direction:column;align-items:flex-start;padding:16px}
  .help-grid,.hotline-grid{grid-template-columns:1fr}
  .help-card{padding:16px}
  .help-card h2{font-size:19px}
  .print-sheet{padding:16px}
  .print-toolbar{padding:12px}
}
@media(prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  *{transition:none!important}
}