:root{
  --bg:#f6f4ef;
  --bg-alt:#fffaf1;
  --surface:#ffffff;
  --surface-alt:#f0ebe1;
  --surface-strong:#183153;
  --text:#1f2430;
  --muted:#5b6472;
  --line:#ddd4c7;
  --brand:#185adb;
  --brand-strong:#0f4cbc;
  --accent:#f4b63d;
  --success:#2a7b56;
  --warning:#b46c16;
  --shadow:0 20px 60px rgba(34,39,49,.10);
  --radius-xl:28px;
  --radius-lg:22px;
  --radius-md:16px;
  --radius-sm:12px;
  --content:1200px;
}

*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  font-family:"Trebuchet MS","Segoe UI","PingFang SC","Microsoft YaHei",sans-serif;
  color:var(--text);
  background:
    radial-gradient(circle at top left, rgba(244,182,61,.18), transparent 28%),
    radial-gradient(circle at 85% 12%, rgba(24,90,219,.14), transparent 22%),
    linear-gradient(180deg, #fbf8f2 0%, var(--bg) 45%, #f4f5f7 100%);
}

img{max-width:100%;display:block}
a{color:inherit}

.site-shell{min-height:100vh}

.site-header{
  position:sticky;
  top:0;
  z-index:20;
  backdrop-filter:blur(18px);
  background:rgba(251,248,242,.84);
  border-bottom:1px solid rgba(221,212,199,.85);
}

.site-header__inner,
.site-main,
.site-footer__inner{
  width:min(calc(100% - 32px), var(--content));
  margin:0 auto;
}

.site-header__inner{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:20px;
  min-height:76px;
}

.brand{
  display:inline-flex;
  align-items:center;
  gap:14px;
  text-decoration:none;
  min-width:0;
}

.brand img{
  width:42px;
  height:42px;
  object-fit:contain;
}

.brand__text{min-width:0}
.brand__eyebrow{
  display:block;
  font-size:11px;
  letter-spacing:.14em;
  text-transform:uppercase;
  color:var(--muted);
}

.brand__title{
  display:block;
  font-size:18px;
  font-weight:700;
  letter-spacing:-.02em;
}

.site-nav{
  display:flex;
  align-items:center;
  gap:10px;
  flex-wrap:wrap;
}

.site-nav a{
  text-decoration:none;
  color:var(--muted);
  padding:10px 14px;
  border-radius:999px;
  font-size:14px;
  font-weight:600;
  transition:background .18s ease,color .18s ease,transform .18s ease;
}

.site-nav a:hover,
.site-nav a[aria-current="page"]{
  background:var(--surface);
  color:var(--text);
  transform:translateY(-1px);
  box-shadow:0 10px 24px rgba(24,90,219,.08);
}

.header-cta{
  display:inline-flex;
  align-items:center;
  gap:10px;
  padding:12px 18px;
  border-radius:999px;
  background:var(--surface-strong);
  color:#fff;
  text-decoration:none;
  font-size:14px;
  font-weight:700;
}

.site-main{
  padding:36px 0 80px;
}

.hero{
  display:grid;
  grid-template-columns:minmax(0, 1.35fr) minmax(300px, .9fr);
  gap:28px;
  align-items:stretch;
}

.hero__copy,
.hero__panel,
.panel,
.card,
.resource,
.article-block,
.toc,
.faq-list details,
.table-card,
.link-grid__item{
  background:rgba(255,255,255,.84);
  border:1px solid rgba(221,212,199,.94);
  border-radius:var(--radius-xl);
  box-shadow:var(--shadow);
}

.hero__copy{
  padding:38px;
}

.eyebrow{
  display:inline-flex;
  align-items:center;
  gap:10px;
  font-size:12px;
  text-transform:uppercase;
  letter-spacing:.18em;
  color:var(--warning);
  font-weight:700;
}

.hero h1,
.page-hero h1{
  margin:18px 0 16px;
  font-size:clamp(2.5rem, 5vw, 4.4rem);
  line-height:1.02;
  letter-spacing:-.05em;
}

.hero p,
.page-hero p,
.card p,
.article-block p,
.article-block li,
.table-card,
.resource p,
.footer-note{
  color:var(--muted);
  line-height:1.8;
  font-size:15px;
}

.hero__actions,
.page-hero__actions{
  display:flex;
  flex-wrap:wrap;
  gap:14px;
  margin-top:26px;
}

.button{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:10px;
  min-height:52px;
  padding:14px 22px;
  border-radius:999px;
  text-decoration:none;
  font-weight:700;
  border:1px solid transparent;
  transition:transform .18s ease, box-shadow .18s ease, background .18s ease;
}

.button:hover{
  transform:translateY(-1px);
  box-shadow:0 18px 38px rgba(24,90,219,.16);
}

.button--primary{
  background:var(--brand);
  color:#fff;
}

.button--secondary{
  background:var(--surface);
  border-color:var(--line);
}

.button--ghost{
  background:transparent;
  border-color:var(--line);
}

.button[aria-disabled="true"]{opacity:.88}

.hero__meta{
  display:flex;
  flex-wrap:wrap;
  gap:12px;
  margin-top:24px;
}

.chip{
  display:inline-flex;
  align-items:center;
  gap:8px;
  padding:10px 14px;
  border-radius:999px;
  background:var(--surface-alt);
  color:var(--text);
  font-size:13px;
  font-weight:700;
}

.hero__panel{
  padding:26px;
  display:grid;
  gap:16px;
  background:
    linear-gradient(180deg, rgba(24,49,83,.98), rgba(24,49,83,.92)),
    linear-gradient(145deg, rgba(244,182,61,.24), transparent 45%);
  color:#fff;
}

.hero__panel h2{
  margin:0;
  font-size:20px;
  letter-spacing:-.03em;
}

.hero__panel p,
.hero__panel li{
  color:rgba(255,255,255,.78);
}

.hero__panel ul{
  margin:0;
  padding-left:18px;
  display:grid;
  gap:10px;
}

.hero__logo-card{
  display:flex;
  align-items:center;
  gap:18px;
  padding:16px;
  border-radius:var(--radius-lg);
  background:rgba(255,255,255,.08);
  border:1px solid rgba(255,255,255,.12);
}

.hero__logo-card img{
  width:74px;
  height:74px;
  object-fit:contain;
}

.hero__logo-card strong{
  display:block;
  font-size:16px;
}

.hero__logo-card span{
  display:block;
  margin-top:6px;
  color:rgba(255,255,255,.70);
  font-size:14px;
}

.section{
  margin-top:34px;
}

.section__header{
  display:flex;
  align-items:end;
  justify-content:space-between;
  gap:20px;
  margin-bottom:18px;
}

.section__header h2{
  margin:0;
  font-size:clamp(1.8rem, 3vw, 2.8rem);
  letter-spacing:-.04em;
}

.section__header p{
  margin:8px 0 0;
  max-width:740px;
  color:var(--muted);
}

.grid-3,
.link-grid,
.platform-grid{
  display:grid;
  gap:18px;
}

.grid-3{
  grid-template-columns:repeat(3, minmax(0, 1fr));
}

.card{
  padding:24px;
}

.card h3,
.resource h3,
.link-grid__item h3,
.article-block h2,
.article-block h3{
  margin:0 0 10px;
  letter-spacing:-.03em;
}

.card h3{font-size:22px}
.resource h3,
.link-grid__item h3{font-size:20px}

.card ul,
.article-block ul,
.article-block ol{
  margin:14px 0 0;
  padding-left:20px;
  display:grid;
  gap:10px;
}

.card__badge{
  display:inline-flex;
  align-items:center;
  padding:7px 12px;
  border-radius:999px;
  font-size:12px;
  font-weight:700;
  margin-bottom:16px;
  background:var(--surface-alt);
  color:var(--warning);
}

.card__link,
.text-link{
  display:inline-flex;
  align-items:center;
  gap:8px;
  margin-top:16px;
  color:var(--brand);
  font-weight:700;
  text-decoration:none;
}

.split{
  display:grid;
  grid-template-columns:minmax(0, 1.15fr) minmax(280px, .85fr);
  gap:18px;
}

.table-card{
  overflow:hidden;
}

.table-card table{
  width:100%;
  border-collapse:collapse;
}

.table-card th,
.table-card td{
  padding:16px 18px;
  vertical-align:top;
  border-bottom:1px solid rgba(221,212,199,.82);
  text-align:left;
}

.table-card th{
  font-size:12px;
  color:var(--muted);
  text-transform:uppercase;
  letter-spacing:.14em;
  background:rgba(240,235,225,.55);
}

.table-card tr:last-child td{border-bottom:none}

.panel{
  padding:24px;
}

.panel h3{
  margin:0 0 10px;
  font-size:21px;
}

.panel ul{
  margin:0;
  padding-left:20px;
  display:grid;
  gap:10px;
}

.resource{
  padding:24px;
}

.resource-list{
  display:grid;
  gap:18px;
}

.platform-grid{
  grid-template-columns:repeat(4, minmax(0, 1fr));
}

.platform-card{
  padding:24px;
  border-radius:var(--radius-lg);
  background:rgba(255,255,255,.88);
  border:1px solid rgba(221,212,199,.94);
  box-shadow:var(--shadow);
}

.platform-card__tag{
  display:inline-flex;
  margin-bottom:14px;
  padding:7px 10px;
  border-radius:999px;
  background:var(--surface-alt);
  font-size:12px;
  font-weight:700;
  color:var(--brand);
}

.faq-list{
  display:grid;
  gap:14px;
}

.faq-list details{
  padding:20px 22px;
}

.faq-list summary{
  cursor:pointer;
  list-style:none;
  font-size:18px;
  font-weight:700;
}

.faq-list summary::-webkit-details-marker{display:none}
.faq-list details p{margin:14px 0 0}

.page-hero{
  padding:34px;
  background:rgba(255,255,255,.86);
  border:1px solid rgba(221,212,199,.94);
  border-radius:var(--radius-xl);
  box-shadow:var(--shadow);
}

.breadcrumbs{
  display:flex;
  align-items:center;
  flex-wrap:wrap;
  gap:10px;
  font-size:13px;
  color:var(--muted);
}

.breadcrumbs a{
  text-decoration:none;
  color:var(--brand);
  font-weight:700;
}

.page-grid{
  display:grid;
  grid-template-columns:minmax(0, 1fr) 300px;
  gap:22px;
  margin-top:24px;
}

.article{
  display:grid;
  gap:20px;
}

.article-block{
  padding:28px;
}

.article-block h2{
  font-size:30px;
  margin-bottom:12px;
}

.article-block h3{
  font-size:22px;
  margin-top:20px;
}

.article-block .button{margin-top:10px}

.toc{
  position:sticky;
  top:96px;
  padding:22px;
  height:fit-content;
}

.toc h3{
  margin:0 0 10px;
  font-size:18px;
}

.toc ul{
  margin:0;
  padding-left:18px;
  display:grid;
  gap:10px;
}

.toc a{
  text-decoration:none;
  color:var(--muted);
  font-weight:600;
}

.toc a:hover{color:var(--brand)}

.link-grid{
  grid-template-columns:repeat(2, minmax(0, 1fr));
}

.link-grid__item{
  padding:22px;
  text-decoration:none;
}

.meta-row{
  display:flex;
  flex-wrap:wrap;
  gap:12px;
  margin-top:18px;
}

.meta-pill{
  display:inline-flex;
  align-items:center;
  gap:8px;
  padding:8px 12px;
  border-radius:999px;
  background:var(--surface-alt);
  color:var(--muted);
  font-size:13px;
  font-weight:700;
}

.site-footer{
  border-top:1px solid rgba(221,212,199,.9);
  background:rgba(24,49,83,.98);
  color:#fff;
}

.site-footer__inner{
  padding:34px 0 42px;
}

.site-footer__top{
  display:flex;
  align-items:flex-start;
  justify-content:space-between;
  gap:24px;
  flex-wrap:wrap;
}

.site-footer .brand__eyebrow,
.site-footer .footer-note,
.site-footer .site-nav a{
  color:rgba(255,255,255,.72);
}

.site-footer .site-nav a:hover,
.site-footer .site-nav a[aria-current="page"]{
  background:rgba(255,255,255,.10);
  color:#fff;
}

.footer-note{
  margin-top:18px;
  max-width:760px;
}

.callout{
  border-left:4px solid var(--accent);
  padding:14px 18px;
  background:#fff7e8;
  border-radius:0 var(--radius-md) var(--radius-md) 0;
  color:#6b5209;
}

.stats{
  display:grid;
  grid-template-columns:repeat(3, minmax(0, 1fr));
  gap:14px;
  margin-top:20px;
}

.stat{
  padding:18px;
  border-radius:var(--radius-lg);
  background:rgba(255,255,255,.08);
  border:1px solid rgba(255,255,255,.12);
}

.stat strong{
  display:block;
  font-size:26px;
  letter-spacing:-.04em;
}

.stat span{
  display:block;
  margin-top:8px;
  color:rgba(255,255,255,.72);
  font-size:13px;
}

@media (max-width: 1080px){
  .hero,
  .split,
  .page-grid{
    grid-template-columns:1fr;
  }

  .grid-3,
  .platform-grid,
  .link-grid{
    grid-template-columns:repeat(2, minmax(0, 1fr));
  }

  .toc{
    position:static;
  }
}

@media (max-width: 760px){
  .site-header__inner{
    align-items:flex-start;
    flex-direction:column;
    padding:14px 0;
  }

  .site-nav{width:100%}
  .site-nav a{padding:10px 12px}

  .hero__copy,
  .hero__panel,
  .page-hero,
  .card,
  .resource,
  .article-block,
  .toc{
    padding:22px;
  }

  .grid-3,
  .platform-grid,
  .link-grid,
  .stats{
    grid-template-columns:1fr;
  }

  .section__header{
    display:block;
  }

  .table-card{overflow:auto}
}