:root{
  color-scheme: light;
  --bg:#eef2f6;
  --bg-2:#dde5ee;
  --paper:#ffffff;
  --paper-2:#f8fbfd;
  --ink:#17212b;
  --ink-2:#34414f;
  --muted:#607080;
  --line:rgba(23,33,43,.12);
  --line-2:rgba(23,33,43,.18);
  --accent:#1b6f7d;
  --accent-2:#8b6c2f;
  --accent-3:#9f4d57;
  --shadow:0 20px 50px rgba(23,33,43,.08);
  --shadow-soft:0 10px 24px rgba(23,33,43,.05);
  --radius-xl:18px;
  --radius-lg:14px;
  --radius-md:10px;
  --max:1360px;
  font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans CJK SC",system-ui,sans-serif;
  line-height:1.75;
}

*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  min-width:320px;
  color:var(--ink);
  background:
    linear-gradient(180deg, #f7fafc 0%, var(--bg) 32%, #e9eef4 100%);
  overflow-x:hidden;
  text-rendering:optimizeLegibility;
}

body::before{
  content:"";
  position:fixed;
  inset:0;
  pointer-events:none;
  background-image:
    linear-gradient(rgba(23,33,43,.035) 1px, transparent 1px),
    linear-gradient(90deg, rgba(23,33,43,.025) 1px, transparent 1px);
  background-size:52px 52px;
  opacity:.45;
  mask-image:linear-gradient(180deg, rgba(0,0,0,.28), transparent 88%);
}

a{color:inherit;text-decoration:none}
p,h1,h2,h3,dl,ul,ol{margin:0}
ul,ol{padding:0}
li{list-style:none}
strong{font-weight:700}

.skip-link{
  position:absolute;
  left:-999px;
  top:10px;
  z-index:20;
  padding:10px 14px;
  border-radius:999px;
  background:#fff;
  color:#111;
  box-shadow:var(--shadow-soft);
}
.skip-link:focus{left:12px}

.page{
  width:min(var(--max), calc(100vw - 28px));
  margin:0 auto;
  padding:16px 0 18px;
  display:grid;
  grid-template-columns:280px minmax(0,1fr);
  gap:22px;
  position:relative;
  z-index:1;
}

.rail{
  position:sticky;
  top:16px;
  align-self:start;
  display:grid;
  gap:16px;
  padding:18px;
  border:1px solid var(--line);
  background:rgba(255,255,255,.74);
  box-shadow:var(--shadow-soft);
  border-radius:var(--radius-xl);
  backdrop-filter:blur(10px);
}

.brand-block{
  display:grid;
  gap:10px;
}

.brand-mark{
  width:52px;
  height:52px;
  display:grid;
  place-items:center;
  border-radius:14px;
  background:linear-gradient(135deg, #17303c 0%, #1b6f7d 56%, #8b6c2f 100%);
  color:#fff;
  font:800 20px/1 "Songti SC","Noto Serif SC",serif;
  letter-spacing:.04em;
}

.brand-copy strong{
  display:block;
  font-size:16px;
  line-height:1.25;
}

.brand-copy span{
  display:block;
  margin-top:4px;
  color:var(--muted);
  font-size:12px;
}

.rail-nav{
  display:grid;
  gap:8px;
}

.rail-nav a{
  min-height:42px;
  display:flex;
  align-items:center;
  padding:10px 12px;
  border:1px solid var(--line);
  border-radius:999px;
  background:var(--paper);
  color:var(--ink-2);
}

.rail-nav a:hover,
.rail-nav a:focus-visible{
  border-color:rgba(27,111,125,.3);
  background:rgba(27,111,125,.06);
  outline:none;
}

.rail-note{
  padding:14px 14px 12px;
  border-radius:var(--radius-lg);
  border:1px solid var(--line);
  background:linear-gradient(180deg, var(--paper), var(--paper-2));
}

.content{
  display:grid;
  gap:18px;
  min-width:0;
}

.intro-board,
.section,
.about-hero,
.footer{
  border:1px solid var(--line);
  background:linear-gradient(180deg, rgba(255,255,255,.96), rgba(248,251,253,.96));
  box-shadow:var(--shadow);
  border-radius:var(--radius-xl);
}

.intro-board{
  display:grid;
  grid-template-columns:minmax(0,1.25fr) minmax(290px,.75fr);
  gap:18px;
  padding:28px;
}

.intro-copy{
  display:grid;
  align-content:start;
  gap:16px;
  min-width:0;
}

.eyebrow{
  display:inline-flex;
  align-items:center;
  width:fit-content;
  min-height:30px;
  padding:6px 10px;
  border-radius:999px;
  border:1px solid rgba(27,111,125,.18);
  background:rgba(27,111,125,.08);
  color:#135765;
  font-size:12px;
  letter-spacing:.08em;
}

h1{
  max-width:11ch;
  font-family:"Noto Serif SC","Songti SC",serif;
  font-size:clamp(40px,5.6vw,82px);
  line-height:.96;
  letter-spacing:-.05em;
}

h2{
  font-family:"Noto Serif SC","Songti SC",serif;
  font-size:clamp(23px,2.2vw,34px);
  line-height:1.15;
  letter-spacing:-.03em;
}

h3{
  font-size:18px;
  line-height:1.25;
}

.lead{
  max-width:62ch;
  color:var(--ink-2);
  font-size:17px;
  line-height:1.9;
}

.intro-tags{
  display:flex;
  flex-wrap:wrap;
  gap:10px;
}

.intro-tags span{
  display:inline-flex;
  align-items:center;
  min-height:36px;
  padding:7px 12px;
  border-radius:999px;
  border:1px solid var(--line);
  background:#fff;
  color:var(--ink-2);
  box-shadow:var(--shadow-soft);
}

.verdict-card{
  display:grid;
  align-content:start;
  gap:14px;
  padding:18px;
  border-radius:var(--radius-lg);
  border:1px solid rgba(27,111,125,.18);
  background:
    linear-gradient(180deg, rgba(25,31,38,.96), rgba(28,43,52,.96));
  color:#eef5f7;
}

.verdict-card .eyebrow{
  background:rgba(255,255,255,.08);
  border-color:rgba(255,255,255,.12);
  color:#dce8ea;
}

.verdict-list{
  display:grid;
  gap:10px;
}

.verdict-list div{
  display:grid;
  gap:3px;
  padding:11px 12px;
  border-radius:12px;
  background:rgba(255,255,255,.06);
  border:1px solid rgba(255,255,255,.08);
}

.verdict-list dt{
  color:#9fb2b8;
  font-size:12px;
  letter-spacing:.08em;
}

.verdict-list dd{
  margin:0;
  font-size:15px;
}

.section{
  padding:24px 26px;
}

.section-head{
  display:grid;
  gap:10px;
  margin-bottom:18px;
}

.section-split{
  display:grid;
  grid-template-columns:minmax(0,1fr) minmax(290px,.78fr);
  gap:18px;
}

.panel{
  min-width:0;
  padding:24px;
  border-radius:var(--radius-lg);
  border:1px solid var(--line);
  background:var(--paper);
}

.side-panel{
  background:
    linear-gradient(180deg, rgba(27,111,125,.06), rgba(139,108,47,.04)),
    var(--paper);
}

.type-list,
.check-list,
.about-list,
.about-steps{
  display:grid;
  gap:14px;
}

.type-list li,
.check-list li{
  padding-top:14px;
  border-top:1px solid var(--line);
}

.type-list li:first-child,
.check-list li:first-child{
  border-top:0;
  padding-top:0;
}

.type-list strong,
.check-list strong{
  display:block;
  margin-bottom:6px;
  font-size:16px;
}

.type-list p,
.check-list p,
.side-panel p,
.about-hero .lead,
.section p,
.footer p{
  color:var(--ink-2);
}

.side-note{
  margin-top:14px;
  padding-top:14px;
  border-top:1px solid var(--line);
}

.path-grid{
  display:grid;
  grid-template-columns:repeat(2, minmax(0,1fr));
  gap:14px;
}

.path-card{
  padding:18px;
  border-radius:var(--radius-lg);
  border:1px solid var(--line);
  background:
    linear-gradient(180deg, rgba(23,33,43,.02), rgba(23,33,43,.01)),
    var(--paper);
}

.path-card p{
  margin-top:8px;
  color:var(--ink-2);
}

.notice-strip{
  padding:18px 22px;
  background:
    linear-gradient(90deg, rgba(27,111,125,.08), rgba(159,77,87,.05)),
    var(--paper);
}

.footer{
  width:min(var(--max), calc(100vw - 28px));
  margin:0 auto 24px;
  padding:16px 18px;
  display:flex;
  justify-content:space-between;
  align-items:center;
  gap:18px;
}

.footer a{
  padding:9px 14px;
  border:1px solid var(--line);
  border-radius:999px;
  background:#fff;
}

.footer a:hover,
.footer a:focus-visible{
  border-color:rgba(27,111,125,.3);
  background:rgba(27,111,125,.06);
  outline:none;
}

.content-about{
  gap:18px;
}

.about-hero{
  padding:28px;
  display:grid;
  gap:14px;
}

.about-list,
.about-steps{
  padding-left:18px;
}

.about-list li,
.about-steps li{
  list-style:disc;
  color:var(--ink-2);
}

.about-steps li{
  list-style:decimal;
}

.about-list li::marker,
.about-steps li::marker{
  color:var(--accent);
}

.page-about{
  align-items:start;
}

.page-about .rail{
  top:16px;
}

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

  .rail{
    position:relative;
    top:auto;
  }

  .intro-board,
  .section-split,
  .path-grid{
    grid-template-columns:1fr;
  }
}

@media (max-width: 720px){
  .page,
  .footer{
    width:min(100vw - 18px, var(--max));
  }

  .page{
    padding-top:10px;
  }

  .intro-board,
  .section,
  .about-hero,
  .panel,
  .rail{
    padding:18px;
  }

  h1{
    max-width:none;
    font-size:clamp(34px,10vw,52px);
  }

  .footer{
    flex-direction:column;
    align-items:flex-start;
  }
}

@media (max-width: 480px){
  .intro-tags{
    gap:8px;
  }

  .intro-tags span,
  .rail-nav a,
  .footer a{
    width:100%;
  }

  .verdict-card{
    padding:16px;
  }
}