/* ============================================================
   ZIRU GROUP — Research Report Design System  v2.0
   Professional · International · Print-ready
   ============================================================ */

:root{
  --navy:#0b2a4a;        /* primary */
  --navy-2:#123a63;
  --ink:#15202b;         /* body text */
  --slate:#5b6b7e;       /* muted */
  --hair:#e5eaf1;        /* hairline */
  --hair-2:#eef2f7;
  --bg:#eef1f6;          /* page bg */
  --paper:#ffffff;
  --gold:#b0883b;        /* accent */
  --gold-soft:#f7efde;
  --green:#1d7a4d;
  --green-soft:#e8f5ee;
  --red:#b3261e;
  --red-soft:#fdecea;
  --blue:#1b4f86;
  --chip:#eaf0f8;
  --shadow:0 1px 2px rgba(13,38,69,.05), 0 8px 24px rgba(13,38,69,.06);
  --shadow-sm:0 1px 2px rgba(13,38,69,.06);
  --radius:14px;
  --radius-sm:9px;
  --maxw:1180px;
  --content:880px;
}

*{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  margin:0;background:var(--bg);color:var(--ink);
  font-family:"Inter","Noto Sans SC","PingFang SC","Microsoft YaHei","Helvetica Neue",Arial,sans-serif;
  font-size:15px;line-height:1.78;-webkit-font-smoothing:antialiased;
  font-feature-settings:"tnum" 0,"kern" 1;
}

/* texture: faint top gradient */
body::before{
  content:"";position:fixed;inset:0 0 auto 0;height:280px;z-index:-1;
  background:linear-gradient(180deg,#e3eaf4 0%,var(--bg) 100%);
}

/* ---------- reading progress ---------- */
.rpt-progress{position:fixed;top:0;left:0;height:3px;width:0;z-index:60;
  background:linear-gradient(90deg,var(--gold),#d9b15f);box-shadow:0 0 8px rgba(176,136,59,.5);transition:width .1s linear;}

/* ---------- brand bar ---------- */
.rpt-brand{position:fixed;top:0;left:0;right:0;height:46px;z-index:50;
  display:flex;align-items:center;gap:10px;padding:0 22px;
  background:rgba(11,42,74,.92);backdrop-filter:saturate(140%) blur(8px);
  color:#dfe8f3;font-size:12.5px;letter-spacing:.4px;border-bottom:1px solid rgba(255,255,255,.08);}
.rpt-brand .logo{display:inline-flex;align-items:center;gap:9px;font-weight:600;color:#fff;}
.rpt-brand .logo i{width:20px;height:20px;border-radius:5px;display:inline-block;
  background:linear-gradient(135deg,var(--gold),#e6c98a);position:relative;}
.rpt-brand .logo i::after{content:"Z";position:absolute;inset:0;display:flex;align-items:center;justify-content:center;
  color:var(--navy);font-weight:800;font-size:13px;font-family:Georgia,serif;}
.rpt-brand .sep{opacity:.4;}
.rpt-brand .cls{margin-left:auto;display:inline-flex;align-items:center;gap:7px;
  font-size:11px;letter-spacing:1.5px;text-transform:uppercase;color:#9fb6d1;}
.rpt-brand .cls b{color:var(--gold);font-weight:700;}
@media print{.rpt-brand,.rpt-progress,.rpt-toc,.rpt-top{display:none!important;}}

/* ---------- layout ---------- */
.wrap{max-width:var(--content);margin:0 auto;padding:84px 30px 90px;}

/* ---------- masthead ---------- */
header.title{
  position:relative;background:var(--paper);border:1px solid var(--hair);
  border-radius:var(--radius);box-shadow:var(--shadow);
  padding:30px 34px 28px;margin-bottom:18px;overflow:hidden;
}
header.title::before{content:"";position:absolute;left:0;top:0;bottom:0;width:5px;
  background:linear-gradient(180deg,var(--gold),#d9b15f);}
header.title .eyebrow{display:flex;align-items:center;gap:10px;
  font-size:11.5px;letter-spacing:2.2px;text-transform:uppercase;color:var(--gold);font-weight:700;margin-bottom:12px;}
header.title .eyebrow::after{content:"";flex:1;height:1px;background:linear-gradient(90deg,var(--hair),transparent);}
header.title h1{margin:0;font-size:26px;line-height:1.32;letter-spacing:.2px;color:var(--navy);font-weight:800;}
header.title .en{color:var(--slate);font-size:13.5px;margin-top:8px;font-style:italic;letter-spacing:.2px;}

/* ---------- document meta ---------- */
.meta{color:var(--slate);font-size:13px;margin:0 0 30px;padding:14px 18px;
  background:var(--paper);border:1px solid var(--hair);border-left:3px solid var(--navy);
  border-radius:var(--radius-sm);box-shadow:var(--shadow-sm);line-height:1.7;}
.meta b{color:var(--ink);}

/* ---------- part divider ---------- */
.part{font-size:12px;color:#fff;background:linear-gradient(135deg,var(--navy),var(--navy-2));
  border-radius:7px;padding:6px 14px;display:inline-block;margin:42px 0 6px;
  letter-spacing:2px;text-transform:uppercase;font-weight:700;box-shadow:var(--shadow-sm);}

/* ---------- headings ---------- */
h2{font-size:19.5px;margin:40px 0 16px;padding-bottom:11px;color:var(--navy);font-weight:750;
  border-bottom:2px solid var(--hair);position:relative;letter-spacing:.2px;}
h2::after{content:"";position:absolute;left:0;bottom:-2px;width:66px;height:2px;background:var(--gold);}
h2 .no{display:inline-flex;align-items:center;justify-content:center;min-width:26px;height:26px;
  background:var(--navy);color:#fff;font-size:13px;border-radius:7px;padding:0 8px;margin-right:11px;
  font-weight:700;vertical-align:1px;box-shadow:var(--shadow-sm);}
h3{font-size:16px;margin:26px 0 10px;color:var(--navy-2);font-weight:700;letter-spacing:.2px;}
h3::before{content:"";display:inline-block;width:7px;height:7px;border-radius:2px;background:var(--gold);
  margin-right:9px;vertical-align:2px;}

p{margin:11px 0;}
a{color:var(--blue);text-decoration:none;border-bottom:1px solid rgba(27,79,134,.3);}
a:hover{border-bottom-color:var(--blue);}
ul{margin:11px 0;padding-left:4px;list-style:none;}
ul li{margin:8px 0;padding-left:22px;position:relative;}
ul li::before{content:"";position:absolute;left:4px;top:11px;width:6px;height:6px;border-radius:50%;
  background:var(--gold);box-shadow:0 0 0 3px var(--gold-soft);}

/* ---------- cards ---------- */
.card{background:var(--paper);border:1px solid var(--hair);border-radius:var(--radius);
  padding:20px 22px;margin:18px 0;box-shadow:var(--shadow-sm);}
.card h3{margin-top:0;}
.lead{background:linear-gradient(135deg,#f3f7fc,#fbfcfe);border:1px solid #d8e3f1;border-left:4px solid var(--navy);}
.lead h3{color:var(--navy);}

/* callouts */
.quote{border-left:4px solid var(--gold);background:var(--gold-soft);padding:14px 20px;margin:18px 0;
  color:#6a5320;border-radius:0 var(--radius-sm) var(--radius-sm) 0;}
.warn{border-left:4px solid var(--red);background:var(--red-soft);padding:14px 20px;margin:18px 0;
  color:#7c241f;border-radius:0 var(--radius-sm) var(--radius-sm) 0;}
.assum{background:#f5f8fc;border:1px dashed #b9c8dd;border-radius:var(--radius-sm);
  padding:14px 18px;font-size:13.5px;color:#33445a;margin:14px 0;}

/* ---------- tables ---------- */
.tablewrap{overflow-x:auto;margin:16px 0;border-radius:var(--radius-sm);
  box-shadow:var(--shadow-sm);border:1px solid var(--hair);-webkit-overflow-scrolling:touch;}
table{width:100%;border-collapse:collapse;font-size:13.5px;background:var(--paper);}
.tablewrap table{margin:0;}
th,td{border-bottom:1px solid var(--hair);border-right:1px solid var(--hair-2);
  padding:10px 13px;text-align:left;vertical-align:top;}
th{background:linear-gradient(180deg,#f2f6fb,#eaf0f7);color:var(--navy);font-weight:700;
  font-size:12.5px;letter-spacing:.4px;border-bottom:2px solid #d6e0ec;white-space:nowrap;}
tr:last-child td{border-bottom:none;}
th:last-child,td:last-child{border-right:none;}
tbody tr{transition:background .12s;}
tbody tr:nth-child(even) td{background:#fafcfe;}
tbody tr:hover td{background:#f0f6ff;}
td.num,th.num{text-align:right;font-variant-numeric:tabular-nums;font-feature-settings:"tnum" 1;white-space:nowrap;}
td.c,th.c{text-align:center;}

/* ---------- chips / tags ---------- */
.chip{display:inline-block;background:var(--chip);border:1px solid #d6e1f0;color:var(--blue);
  border-radius:20px;padding:2px 11px;font-size:12px;margin:2px 4px 2px 0;font-weight:600;}
.tag-green{background:var(--green-soft);border-color:#bfe3d0;color:var(--green);}
.tag-gold{background:var(--gold-soft);border-color:#ecd9a8;color:var(--gold);}
.tag-red{background:var(--red-soft);border-color:#f3c4c6;color:var(--red);}

.tags{margin:8px 0 4px;}
.tags span{display:inline-block;background:var(--paper);border:1px solid var(--hair);
  border-radius:8px;padding:5px 11px;margin:4px 6px 4px 0;font-size:12.5px;color:var(--ink);
  box-shadow:var(--shadow-sm);transition:transform .1s,border-color .1s;}
.tags span:hover{transform:translateY(-1px);border-color:#cbd8ea;}
.tags span b{color:var(--navy);font-variant-numeric:tabular-nums;}

/* ---------- inline emphasis ---------- */
.hl{background:linear-gradient(180deg,transparent 55%,#ffe9a8 55%);padding:0 2px;font-weight:600;}
.win{color:var(--green);font-weight:700;}
.bad{color:var(--red);font-weight:700;}
td.win{background:var(--green-soft)!important;}
td.bad{background:var(--red-soft)!important;}
.big{font-size:22px;font-weight:800;color:var(--navy);letter-spacing:.3px;}
.star{background:var(--gold-soft);color:var(--gold);border-color:#ecd9a8;}

/* ---------- KPI stat strip ---------- */
.kpis{display:grid;grid-template-columns:repeat(auto-fit,minmax(150px,1fr));gap:14px;margin:18px 0;}
.kpi{background:var(--paper);border:1px solid var(--hair);border-radius:var(--radius);
  padding:16px 18px;box-shadow:var(--shadow-sm);position:relative;overflow:hidden;}
.kpi::before{content:"";position:absolute;left:0;top:0;bottom:0;width:3px;background:var(--gold);}
.kpi .v{font-size:24px;font-weight:800;color:var(--navy);line-height:1.1;font-variant-numeric:tabular-nums;}
.kpi .l{font-size:12px;color:var(--slate);margin-top:5px;letter-spacing:.3px;}

/* ---------- grids ---------- */
.grid2{display:grid;grid-template-columns:1fr 1fr;gap:16px;}
@media(max-width:760px){.grid2{grid-template-columns:1fr;}}

/* ---------- footnotes ---------- */
.footnote,.foot{margin-top:44px;padding:18px 20px;border-top:2px solid var(--hair);
  color:var(--slate);font-size:12.5px;background:linear-gradient(180deg,#fbfcfe,transparent);
  border-radius:0 0 var(--radius) var(--radius);}
.footnote b,.foot b{color:var(--ink);}

/* ---------- TOC sidebar (JS-injected) ---------- */
.rpt-toc{position:fixed;top:78px;right:max(16px,calc((100vw - var(--content))/2 - 230px));
  width:210px;max-height:calc(100vh - 130px);overflow:auto;z-index:40;
  background:rgba(255,255,255,.7);backdrop-filter:blur(6px);border:1px solid var(--hair);
  border-radius:var(--radius);padding:14px 8px 14px 14px;box-shadow:var(--shadow);}
.rpt-toc .t{font-size:11px;letter-spacing:1.6px;text-transform:uppercase;color:var(--gold);
  font-weight:700;margin:0 0 10px 2px;}
.rpt-toc a{display:block;font-size:12.5px;color:var(--slate);padding:5px 8px;margin:1px 0;
  border:0;border-radius:7px;border-left:2px solid transparent;line-height:1.4;
  white-space:nowrap;overflow:hidden;text-overflow:ellipsis;}
.rpt-toc a:hover{background:var(--hair-2);color:var(--navy);}
.rpt-toc a.active{background:#eef4fb;color:var(--navy);border-left-color:var(--gold);font-weight:600;}
@media(max-width:1280px){.rpt-toc{display:none;}}

/* ---------- back to top ---------- */
.rpt-top{position:fixed;right:22px;bottom:22px;z-index:45;width:42px;height:42px;border-radius:50%;
  background:var(--navy);color:#fff;border:none;cursor:pointer;font-size:18px;display:none;
  align-items:center;justify-content:center;box-shadow:var(--shadow);transition:transform .15s,background .15s;}
.rpt-top:hover{background:var(--navy-2);transform:translateY(-2px);}
.rpt-top.show{display:flex;}

/* ---------- print ---------- */
@media print{
  body{background:#fff;font-size:11.5pt;}
  body::before{display:none;}
  .wrap{max-width:none;padding:0;}
  header.title,.card,.tablewrap,.kpi{box-shadow:none;}
  .card,.tablewrap,table,tr,.kpi,.quote,.warn{page-break-inside:avoid;}
  h2,h3{page-break-after:avoid;}
  a{color:var(--ink);border:none;}
}