/* roulang page: index */
:root{
  --blue-700:#123a9c;
  --blue-600:#1d4ed8;
  --blue-500:#2b6cf0;
  --blue-050:#eef4ff;
  --teal-500:#0ea5a4;
  --ink:#0f1c33;
  --ink-2:#41536f;
  --ink-3:#74839c;
  --line:#e3e9f4;
  --line-soft:#eef2fa;
  --bg:#f6f8fc;
  --white:#ffffff;
  --radius-xl:24px;
  --radius-lg:20px;
  --radius:14px;
  --radius-sm:10px;
  --shadow-xs:0 2px 6px rgba(15,28,51,.05);
  --shadow-sm:0 8px 24px rgba(22,54,120,.07);
  --shadow-md:0 16px 40px rgba(22,54,120,.10);
  --shadow-lg:0 26px 60px rgba(18,58,156,.16);
  --ease:all .28s cubic-bezier(.4,.2,.2,1);
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",Arial,sans-serif;
  font-size:16px;
  line-height:1.75;
  color:var(--ink);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4,p,ul,ol,figure{margin:0;padding:0;}
ul,ol{list-style:none;}
a{color:var(--blue-600);text-decoration:none;transition:var(--ease);}
a:hover{color:var(--blue-700);}
img{max-width:100%;height:auto;display:block;}
button{font:inherit;cursor:pointer;border:0;background:none;color:inherit;}
input,select,textarea{font:inherit;color:inherit;}
:focus-visible{outline:3px solid rgba(43,108,240,.45);outline-offset:2px;border-radius:6px;}

.site-container{width:100%;max-width:1180px;margin:0 auto;padding:0 24px;}

/* ---------- Header ---------- */
.site-header{
  position:fixed;top:0;left:0;right:0;z-index:120;
  background:rgba(255,255,255,.58);
  -webkit-backdrop-filter:blur(16px) saturate(160%);
  backdrop-filter:blur(16px) saturate(160%);
  border-bottom:1px solid rgba(255,255,255,.65);
  box-shadow:0 4px 22px rgba(18,58,156,.06);
  transition:var(--ease);
}
.site-header.is-solid{
  background:rgba(255,255,255,.94);
  border-bottom-color:var(--line);
  box-shadow:0 10px 30px rgba(18,58,156,.10);
}
.header-inner{
  position:relative;
  display:flex;align-items:center;gap:26px;
  min-height:72px;
}
.brand{display:inline-flex;align-items:center;gap:11px;flex-shrink:0;}
.brand-mark{
  width:40px;height:40px;border-radius:13px;
  display:inline-flex;align-items:center;justify-content:center;
  background:linear-gradient(140deg,var(--blue-500),var(--blue-700));
  color:#fff;font-size:19px;font-weight:700;letter-spacing:.5px;
  box-shadow:0 8px 18px rgba(29,78,216,.32);
}
.brand-text{display:flex;flex-direction:column;line-height:1.2;}
.brand-text strong{font-size:18px;font-weight:700;color:var(--ink);letter-spacing:.5px;}
.brand-text em{font-style:normal;font-size:11px;color:var(--ink-3);letter-spacing:1.6px;}
.site-nav{display:flex;align-items:center;gap:6px;margin-left:auto;}
.nav-link{
  position:relative;display:inline-block;
  padding:9px 15px;border-radius:11px;
  font-size:15px;color:var(--ink-2);font-weight:500;
}
.nav-link:hover{color:var(--blue-600);background:rgba(43,108,240,.08);}
.nav-link.is-active{color:var(--blue-700);font-weight:600;background:rgba(43,108,240,.10);}
.header-cta{
  flex-shrink:0;
  padding:10px 20px;border-radius:12px;
  background:linear-gradient(135deg,var(--blue-500),var(--blue-700));
  color:#fff;font-size:14px;font-weight:600;
  box-shadow:0 10px 22px rgba(29,78,216,.28);
}
.header-cta:hover{color:#fff;transform:translateY(-2px);box-shadow:0 14px 28px rgba(29,78,216,.34);}
.nav-toggle{
  display:none;flex-direction:column;justify-content:center;gap:5px;
  width:42px;height:42px;border-radius:12px;margin-left:auto;
  background:rgba(255,255,255,.85);border:1px solid var(--line);
}
.nav-toggle span{display:block;width:18px;height:2px;margin:0 auto;border-radius:2px;background:var(--ink);transition:var(--ease);}

/* ---------- Buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:13px 25px;border-radius:13px;
  font-size:15px;font-weight:600;line-height:1.2;
  transition:var(--ease);
}
.btn-primary{
  background:linear-gradient(135deg,var(--blue-500),var(--blue-700));
  color:#fff;box-shadow:0 14px 30px rgba(29,78,216,.30);
}
.btn-primary:hover{color:#fff;transform:translateY(-2px);box-shadow:0 18px 36px rgba(29,78,216,.38);}
.btn-primary:active{transform:translateY(0);}
.btn-ghost{
  background:#fff;color:var(--ink);border:1px solid var(--line);
  box-shadow:var(--shadow-xs);
}
.btn-ghost:hover{color:var(--blue-600);border-color:rgba(43,108,240,.45);transform:translateY(-2px);box-shadow:var(--shadow-sm);}

/* ---------- Hero ---------- */
.hero{
  position:relative;
  padding:150px 0 88px;
  background:
    radial-gradient(900px 420px at 82% -8%,rgba(43,108,240,.16),transparent 70%),
    radial-gradient(700px 380px at 6% 6%,rgba(14,165,164,.12),transparent 68%),
    linear-gradient(180deg,#fbfcff 0%,var(--bg) 100%);
  overflow:hidden;
}
.hero::after{
  content:"";position:absolute;left:0;right:0;bottom:0;height:1px;background:var(--line-soft);
}
.hero-grid{
  position:relative;z-index:2;
  display:grid;grid-template-columns:minmax(0,1.06fr) minmax(0,.94fr);
  gap:52px;align-items:center;
}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  padding:7px 15px;border-radius:999px;
  background:rgba(43,108,240,.10);color:var(--blue-700);
  font-size:13px;font-weight:600;letter-spacing:.4px;
}
.eyebrow::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--teal-500);}
.hero h1{
  margin-top:20px;
  font-size:clamp(28px,3.2vw,42px);
  line-height:1.32;
  font-weight:800;
  letter-spacing:-.4px;
  color:var(--ink);
}
.hero h1 .hl{
  color:var(--blue-700);
  background:linear-gradient(180deg,transparent 68%,rgba(43,108,240,.20) 68%);
  padding:0 2px;
}
.hero-lead{
  margin-top:20px;max-width:620px;
  font-size:16px;color:var(--ink-2);line-height:1.9;
}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:28px;}
.hero-points{
  display:flex;flex-wrap:wrap;gap:10px;margin-top:26px;
}
.hero-points li{
  padding:7px 14px;border-radius:999px;
  background:rgba(255,255,255,.86);
  border:1px solid var(--line);
  font-size:13px;color:var(--ink-2);
  box-shadow:var(--shadow-xs);
}
.hero-visual{min-width:0;}
.param-panel{
  border-radius:var(--radius-xl);
  padding:22px 22px 18px;
  background:linear-gradient(160deg,#132a5c,#0d1b3a 70%);
  color:#dbe6ff;
  border:1px solid rgba(120,160,255,.22);
  box-shadow:var(--shadow-lg);
}
.param-bar{
  display:flex;align-items:center;gap:8px;
  padding-bottom:15px;margin-bottom:6px;
  border-bottom:1px dashed rgba(150,180,255,.24);
}
.param-bar .dot{width:9px;height:9px;border-radius:50%;background:#4d7dff;}
.param-bar .dot:nth-child(2){background:#2ec6b8;}
.param-bar .dot:nth-child(3){background:#8aa6d8;}
.param-title{
  margin-left:8px;font-size:13px;letter-spacing:1.2px;color:#a9c0ec;font-weight:600;
}
.param-list li{
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:11px 0;
  border-bottom:1px solid rgba(150,180,255,.12);
  font-size:14px;
}
.param-list li:last-child{border-bottom:0;}
.param-key{color:#93aee0;font-family:"SFMono-Regular",Consolas,"Liberation Mono",Menlo,monospace;font-size:13px;}
.param-val{color:#eaf1ff;font-weight:600;text-align:right;}
.param-note{
  margin-top:14px;font-size:12.5px;line-height:1.7;color:#8fa6d4;
}
.param-cta{
  display:flex;align-items:center;justify-content:space-between;gap:12px;
  margin-top:16px;padding:12px 14px;border-radius:12px;
  background:rgba(77,125,255,.16);
  border:1px solid rgba(120,160,255,.28);
  font-size:13px;color:#cfe0ff;
}

/* ---------- Section base ---------- */
.section{padding:78px 0;}
.section-alt{background:var(--white);}
.section-head{max-width:760px;margin-bottom:40px;}
.section-head.center{margin-left:auto;margin-right:auto;text-align:center;}
.section-tag{
  display:inline-block;margin-bottom:12px;
  font-size:13px;font-weight:700;letter-spacing:1.4px;
  color:var(--blue-600);
}
.section-head h2{
  font-size:clamp(23px,2.4vw,31px);line-height:1.4;font-weight:800;color:var(--ink);
  letter-spacing:-.3px;
}
.section-head p{margin-top:14px;color:var(--ink-2);font-size:15.5px;line-height:1.85;}

/* ---------- Download ---------- */
.download-panel{
  position:relative;overflow:hidden;
  border-radius:var(--radius-xl);
  padding:44px 44px 40px;
  background:
    radial-gradient(600px 300px at 88% -20%,rgba(46,198,184,.28),transparent 70%),
    linear-gradient(140deg,#16346f,#0d1b3a 78%);
  color:#e8f0ff;
  box-shadow:var(--shadow-lg);
}
.download-panel h2{font-size:clamp(22px,2.3vw,29px);font-weight:800;line-height:1.45;color:#fff;}
.download-panel p.dl-lead{margin-top:14px;max-width:720px;color:#b9cbec;font-size:15px;line-height:1.85;}
.dl-grid{
  display:grid;grid-template-columns:repeat(3,minmax(0,1fr));
  gap:16px;margin-top:30px;
}
.dl-btn{
  display:flex;flex-direction:column;gap:6px;
  padding:18px 20px;border-radius:16px;
  background:rgba(255,255,255,.09);
  border:1px solid rgba(150,180,255,.30);
  color:#fff;font-weight:700;font-size:16px;
  transition:var(--ease);
}
.dl-btn span{font-size:12.5px;font-weight:500;color:#a8bee6;letter-spacing:.3px;}
.dl-btn:hover{
  color:#fff;transform:translateY(-3px);
  background:rgba(255,255,255,.16);
  border-color:rgba(180,205,255,.55);
  box-shadow:0 16px 32px rgba(4,14,36,.35);
}
.dl-note{margin-top:18px;font-size:12.5px;color:#8ea6cd;line-height:1.8;}

/* ---------- Metrics ---------- */
.metrics-grid{
  display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:18px;
}
.metric-card{
  min-width:0;
  padding:24px 22px;border-radius:var(--radius-lg);
  background:var(--white);border:1px solid var(--line);
  box-shadow:var(--shadow-sm);
  transition:var(--ease);
}
.metric-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-md);border-color:rgba(43,108,240,.28);}
.metric-num{
  display:block;font-size:34px;font-weight:800;line-height:1.1;
  color:var(--blue-700);letter-spacing:-1px;
}
.metric-num small{font-size:15px;font-weight:700;margin-left:4px;color:var(--ink-2);}
.metric-label{display:block;margin-top:8px;font-size:14px;font-weight:700;color:var(--ink);}
.metric-card p{margin-top:8px;font-size:13.5px;color:var(--ink-3);line-height:1.75;}

/* ---------- Generic card grids ---------- */
.goal-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:20px;}
.goal-card{
  min-width:0;padding:26px 24px;border-radius:var(--radius-lg);
  background:var(--white);border:1px solid var(--line);box-shadow:var(--shadow-xs);
  transition:var(--ease);
}
.goal-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-md);border-color:rgba(43,108,240,.3);}
.goal-icon{
  width:44px;height:44px;border-radius:13px;
  display:flex;align-items:center;justify-content:center;
  background:var(--blue-050);color:var(--blue-600);
  font-weight:800;font-size:16px;margin-bottom:16px;
}
.goal-card h3{font-size:17px;font-weight:700;color:var(--ink);}
.goal-card p{margin-top:10px;font-size:14.5px;color:var(--ink-2);line-height:1.82;}

/* ---------- Matrix table ---------- */
.matrix-wrap{
  border-radius:var(--radius-lg);overflow:hidden;
  border:1px solid var(--line);background:var(--white);
  box-shadow:var(--shadow-sm);
}
.matrix-row{
  display:grid;grid-template-columns:minmax(0,.9fr) minmax(0,1.5fr) minmax(0,1.2fr);
  gap:0;border-bottom:1px solid var(--line-soft);
}
.matrix-row:last-child{border-bottom:0;}
.matrix-row.matrix-head{
  background:linear-gradient(120deg,#eef4ff,#f8fbff);
}
.matrix-row > div{
  min-width:0;padding:18px 22px;font-size:14.5px;color:var(--ink-2);line-height:1.75;
}
.matrix-row.matrix-head > div{font-weight:700;color:var(--blue-700);font-size:14px;letter-spacing:.4px;}
.matrix-row > div:first-child{font-weight:700;color:var(--ink);}
.matrix-row:not(.matrix-head):hover{background:#fafcff;}

/* ---------- Path steps ---------- */
.path-list{display:grid;gap:16px;}
.path-item{
  display:grid;grid-template-columns:64px minmax(0,1fr);
  gap:20px;align-items:start;
  padding:24px;border-radius:var(--radius-lg);
  background:var(--white);border:1px solid var(--line);
  box-shadow:var(--shadow-xs);transition:var(--ease);
}
.path-item:hover{box-shadow:var(--shadow-md);border-color:rgba(43,108,240,.28);transform:translateX(3px);}
.path-num{
  width:52px;height:52px;border-radius:16px;
  display:flex;align-items:center;justify-content:center;
  background:linear-gradient(140deg,var(--blue-500),var(--blue-700));
  color:#fff;font-weight:800;font-size:19px;
  box-shadow:0 10px 20px rgba(29,78,216,.26);
}
.path-body h3{font-size:17px;font-weight:700;color:var(--ink);}
.path-body p{margin-top:8px;font-size:14.5px;color:var(--ink-2);line-height:1.82;}

/* ---------- Progress ---------- */
.progress-card{
  padding:32px;border-radius:var(--radius-xl);
  background:var(--white);border:1px solid var(--line);
  box-shadow:var(--shadow-sm);
}
.progress-track{
  display:grid;grid-template-columns:repeat(4,minmax(0,1fr));
  gap:12px;margin-top:8px;
}
.progress-step{min-width:0;}
.progress-bar{
  height:8px;border-radius:999px;background:var(--line-soft);overflow:hidden;
}
.progress-bar i{display:block;height:100%;border-radius:999px;background:linear-gradient(90deg,var(--blue-500),var(--teal-500));}
.progress-step:nth-child(1) .progress-bar i{width:100%;}
.progress-step:nth-child(2) .progress-bar i{width:74%;}
.progress-step:nth-child(3) .progress-bar i{width:48%;}
.progress-step:nth-child(4) .progress-bar i{width:24%;}
.progress-step h4{margin-top:12px;font-size:14.5px;font-weight:700;color:var(--ink);}
.progress-step p{margin-top:6px;font-size:13px;color:var(--ink-3);line-height:1.7;}
.progress-foot{
  margin-top:24px;padding-top:20px;border-top:1px dashed var(--line);
  font-size:13.5px;color:var(--ink-2);line-height:1.8;
}

/* ---------- Compare ---------- */
.compare-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:20px;}
.compare-card{
  min-width:0;padding:28px 26px;border-radius:var(--radius-lg);
  border:1px solid var(--line);background:var(--white);box-shadow:var(--shadow-xs);
}
.compare-card.is-bad{background:#fdf7f7;border-color:#f3dcdc;}
.compare-card.is-good{background:#f5fbfa;border-color:#cfeae7;}
.compare-card h3{font-size:17px;font-weight:800;color:var(--ink);display:flex;align-items:center;gap:9px;}
.compare-card h3 b{
  width:24px;height:24px;border-radius:8px;display:inline-flex;align-items:center;justify-content:center;
  font-size:13px;color:#fff;background:#c2605f;
}
.compare-card.is-good h3 b{background:var(--teal-500);}
.compare-card ul{margin-top:16px;display:grid;gap:11px;}
.compare-card li{
  position:relative;padding-left:18px;font-size:14.5px;color:var(--ink-2);line-height:1.8;
}
.compare-card li::before{
  content:"";position:absolute;left:0;top:11px;width:7px;height:7px;border-radius:50%;background:#d7b4b3;
}
.compare-card.is-good li::before{background:var(--teal-500);}

/* ---------- Timeline ---------- */
.timeline{
  position:relative;padding-left:26px;
}
.timeline::before{
  content:"";position:absolute;left:7px;top:8px;bottom:8px;width:2px;
  background:linear-gradient(180deg,rgba(43,108,240,.55),rgba(14,165,164,.35));
  border-radius:2px;
}
.timeline-item{position:relative;padding:0 0 26px 12px;}
.timeline-item:last-child{padding-bottom:0;}
.timeline-item::before{
  content:"";position:absolute;left:-26px;top:7px;width:16px;height:16px;border-radius:50%;
  background:#fff;border:3px solid var(--blue-500);box-shadow:0 0 0 4px rgba(43,108,240,.10);
}
.timeline-item h3{font-size:16.5px;font-weight:700;color:var(--ink);}
.timeline-item p{margin-top:7px;font-size:14.5px;color:var(--ink-2);line-height:1.82;}

/* ---------- Risk ---------- */
.risk-panel{
  border-radius:var(--radius-xl);
  padding:36px;
  background:linear-gradient(150deg,#fff6f4,#fffdfb 70%);
  border:1px solid #f6ded7;
  box-shadow:var(--shadow-sm);
}
.risk-panel h2{font-size:clamp(22px,2.2vw,28px);font-weight:800;color:#8c2f26;}
.risk-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:16px;margin-top:24px;}
.risk-item{
  min-width:0;padding:18px 20px;border-radius:14px;
  background:rgba(255,255,255,.9);border:1px solid #f4e0da;
}
.risk-item h3{font-size:15.5px;font-weight:700;color:#8c2f26;}
.risk-item p{margin-top:7px;font-size:14px;color:#6f4c46;line-height:1.8;}

/* ---------- Guarantee ---------- */
.guard-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:18px;}
.guard-card{
  min-width:0;padding:24px 22px;border-radius:var(--radius-lg);
  background:var(--white);border:1px solid var(--line);box-shadow:var(--shadow-xs);
  transition:var(--ease);
}
.guard-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-md);}
.guard-card h3{font-size:16px;font-weight:700;color:var(--ink);margin-top:14px;}
.guard-card p{margin-top:8px;font-size:13.8px;color:var(--ink-2);line-height:1.8;}
.guard-dot{width:34px;height:34px;border-radius:11px;background:var(--blue-050);display:flex;align-items:center;justify-content:center;color:var(--blue-600);font-weight:800;font-size:14px;}

/* ---------- News ---------- */
.news-layout{display:grid;grid-template-columns:minmax(0,2.15fr) minmax(0,1fr);gap:26px;align-items:start;}
.news-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:18px;}
.news-card{
  display:flex;flex-direction:column;gap:10px;
  min-width:0;padding:22px;border-radius:var(--radius-lg);
  background:var(--white);border:1px solid var(--line);
  box-shadow:var(--shadow-xs);transition:var(--ease);color:inherit;
}
.news-card:hover{
  transform:translateY(-4px);box-shadow:var(--shadow-md);
  border-color:rgba(43,108,240,.32);color:inherit;
}
.news-meta{display:flex;align-items:center;gap:10px;flex-wrap:wrap;}
.tag{
  display:inline-block;padding:4px 11px;border-radius:999px;
  background:var(--blue-050);color:var(--blue-700);
  font-size:12px;font-weight:600;
}
.news-time{font-size:12.5px;color:var(--ink-3);}
.news-card h3{
  font-size:16px;font-weight:700;line-height:1.6;color:var(--ink);
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.news-card p{
  font-size:14px;color:var(--ink-2);line-height:1.8;
  display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden;
}
.news-more{margin-top:20px;}
.news-side{
  padding:24px;border-radius:var(--radius-lg);
  background:var(--white);border:1px solid var(--line);box-shadow:var(--shadow-sm);
}
.news-side h3{font-size:16px;font-weight:800;color:var(--ink);padding-bottom:14px;border-bottom:1px solid var(--line-soft);}
.news-side ul{margin-top:14px;display:grid;gap:14px;}
.news-side li a{
  display:block;font-size:14.5px;color:var(--ink-2);font-weight:600;line-height:1.7;
}
.news-side li a:hover{color:var(--blue-600);}
.news-side li span{display:block;margin-top:4px;font-size:12.5px;color:var(--ink-3);}
.empty-tip{
  padding:26px;border-radius:var(--radius-lg);
  background:var(--white);border:1px dashed var(--line);
  color:var(--ink-3);font-size:14.5px;text-align:center;
}

/* ---------- Category entry ---------- */
.entry-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:20px;}
.entry-card{
  display:block;min-width:0;padding:28px;border-radius:var(--radius-lg);
  background:linear-gradient(140deg,#f4f8ff,#ffffff 65%);
  border:1px solid var(--line);box-shadow:var(--shadow-xs);
  color:inherit;transition:var(--ease);
}
.entry-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-md);border-color:rgba(43,108,240,.32);color:inherit;}
.entry-card h3{font-size:18px;font-weight:800;color:var(--ink);}
.entry-card p{margin-top:10px;font-size:14.5px;color:var(--ink-2);line-height:1.82;}
.entry-link{display:inline-flex;align-items:center;gap:6px;margin-top:16px;font-size:14px;font-weight:700;color:var(--blue-600);}
.entry-note{
  padding:28px;border-radius:var(--radius-lg);
  background:var(--white);border:1px solid var(--line);box-shadow:var(--shadow-xs);
}
.entry-note h3{font-size:18px;font-weight:800;color:var(--ink);}
.entry-note ul{margin-top:14px;display:grid;gap:11px;}
.entry-note li{position:relative;padding-left:18px;font-size:14.5px;color:var(--ink-2);line-height:1.8;}
.entry-note li::before{content:"";position:absolute;left:0;top:11px;width:7px;height:7px;border-radius:50%;background:var(--blue-500);}

/* ---------- FAQ ---------- */
.faq-list{display:grid;gap:14px;max-width:900px;margin:0 auto;}
.faq-item{
  border-radius:var(--radius-lg);background:var(--white);
  border:1px solid var(--line);box-shadow:var(--shadow-xs);
  overflow:hidden;
}
.faq-item h3{font-size:16px;}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:20px 24px;text-align:left;font-weight:700;color:var(--ink);
  transition:var(--ease);
}
.faq-q:hover{color:var(--blue-700);background:#fafcff;}
.faq-q i{
  flex-shrink:0;width:24px;height:24px;border-radius:8px;
  display:inline-flex;align-items:center;justify-content:center;
  background:var(--blue-050);color:var(--blue-600);font-style:normal;font-size:15px;font-weight:700;
  transition:var(--ease);
}
.faq-item.is-open .faq-q i{transform:rotate(45deg);background:var(--blue-600);color:#fff;}
.faq-a{
  display:none;padding:0 24px 22px;
  font-size:14.5px;color:var(--ink-2);line-height:1.85;
}
.faq-item.is-open .faq-a{display:block;}

/* ---------- Plan check ---------- */
.check-panel{
  padding:36px;border-radius:var(--radius-xl);
  background:var(--white);border:1px solid var(--line);
  box-shadow:var(--shadow-md);
}
.check-form{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:18px;margin-top:22px;}
.field{min-width:0;}
.field label{display:block;font-size:13.5px;font-weight:700;color:var(--ink);margin-bottom:8px;}
.field select{
  width:100%;padding:12px 14px;border-radius:12px;
  background:#fbfcff;border:1px solid var(--line);
  font-size:14.5px;color:var(--ink);transition:var(--ease);
  appearance:none;
  background-image:linear-gradient(45deg,transparent 50%,#7b8aa4 50%),linear-gradient(135deg,#7b8aa4 50%,transparent 50%);
  background-position:calc(100% - 20px) 21px,calc(100% - 14px) 21px;
  background-size:6px 6px,6px 6px;
  background-repeat:no-repeat;
}
.field select:focus{border-color:rgba(43,108,240,.55);background-color:#fff;box-shadow:0 0 0 4px rgba(43,108,240,.10);outline:none;}
.check-action{margin-top:22px;display:flex;flex-wrap:wrap;align-items:center;gap:14px;}
.check-result{
  margin-top:22px;padding:22px 24px;border-radius:var(--radius);
  background:var(--blue-050);border:1px solid rgba(43,108,240,.20);
  font-size:14.5px;color:var(--blue-700);line-height:1.85;
  display:none;
}
.check-result.is-show{display:block;}
.check-result strong{display:block;margin-bottom:8px;font-size:15.5px;color:var(--blue-700);}
.check-tip{margin-top:14px;font-size:12.8px;color:var(--ink-3);line-height:1.8;}

/* ---------- Footer ---------- */
.site-footer{
  margin-top:0;padding:56px 0 26px;
  background:#0d1b3a;color:#b7c6e2;
}
.footer-grid{display:grid;grid-template-columns:minmax(0,1.6fr) repeat(2,minmax(0,.7fr));gap:36px;}
.footer-brand .brand-text strong{color:#fff;}
.footer-brand .brand-text em{color:#7f93b8;}
.footer-brand p{margin-top:16px;font-size:14px;color:#9cb0d2;line-height:1.85;max-width:440px;}
.footer-col h3{font-size:14px;font-weight:700;color:#fff;letter-spacing:.6px;margin-bottom:14px;}
.footer-col ul{display:grid;gap:10px;}
.footer-col a{font-size:14px;color:#9cb0d2;}
.footer-col a:hover{color:#fff;}
.footer-bottom{
  margin-top:36px;padding-top:20px;
  border-top:1px solid rgba(150,180,255,.16);
  display:flex;flex-wrap:wrap;gap:10px 24px;align-items:center;justify-content:space-between;
  font-size:13px;color:#7f93b8;
}
.footer-bottom .footer-note{color:#7f93b8;}

/* ---------- Responsive ---------- */
@media (max-width:1024px){
  .hero{padding:130px 0 72px;}
  .hero-grid{grid-template-columns:minmax(0,1fr);gap:38px;}
  .hero-visual{max-width:640px;}
  .metrics-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
  .goal-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
  .guard-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
  .news-layout{grid-template-columns:minmax(0,1fr);}
  .check-form{grid-template-columns:repeat(2,minmax(0,1fr));}
  .footer-grid{grid-template-columns:minmax(0,1fr) minmax(0,1fr);}
}
@media (max-width:900px){
  .site-nav{
    position:absolute;top:calc(100% + 10px);left:16px;right:16px;
    display:none;flex-direction:column;align-items:stretch;gap:4px;
    padding:12px;border-radius:18px;
    background:#fff;border:1px solid var(--line);
    box-shadow:var(--shadow-lg);
  }
  .site-nav.is-open{display:flex;}
  .site-nav .nav-link{padding:12px 16px;}
  .header-cta{display:none;}
  .nav-toggle{display:flex;}
  .header-inner{gap:14px;}
}
@media (max-width:768px){
  .section{padding:56px 0;}
  .download-panel{padding:32px 24px;}
  .dl-grid{grid-template-columns:minmax(0,1fr);}
  .goal-grid{grid-template-columns:minmax(0,1fr);}
  .compare-grid{grid-template-columns:minmax(0,1fr);}
  .risk-grid{grid-template-columns:minmax(0,1fr);}
  .guard-grid{grid-template-columns:minmax(0,1fr);}
  .news-grid{grid-template-columns:minmax(0,1fr);}
  .entry-grid{grid-template-columns:minmax(0,1fr);}
  .matrix-row{grid-template-columns:minmax(0,1fr);}
  .matrix-row > div{padding:12px 18px;border-bottom:1px solid var(--line-soft);}
  .matrix-row > div:last-child{border-bottom:0;}
  .matrix-row.matrix-head{display:none;}
  .progress-track{grid-template-columns:repeat(2,minmax(0,1fr));}
  .progress-card{padding:24px;}
  .check-panel{padding:24px;}
  .check-form{grid-template-columns:minmax(0,1fr);}
  .risk-panel{padding:24px;}
  .footer-grid{grid-template-columns:minmax(0,1fr);gap:26px;}
}
@media (max-width:520px){
  .site-container{padding:0 18px;}
  .hero{padding:118px 0 58px;}
  .hero-actions .btn{width:100%;}
  .metrics-grid{grid-template-columns:minmax(0,1fr);}
  .path-item{grid-template-columns:minmax(0,1fr);gap:14px;padding:20px;}
  .path-num{width:44px;height:44px;font-size:17px;}
  .progress-track{grid-template-columns:minmax(0,1fr);}
  .brand-text em{display:none;}
  .footer-bottom{flex-direction:column;align-items:flex-start;}
}

/* roulang page: category1 */
:root{
  --blue-700:#123a9c;
  --blue-600:#1d4ed8;
  --blue-500:#2b6cf0;
  --blue-050:#eef4ff;
  --teal-500:#0ea5a4;
  --ink:#0f1c33;
  --ink-2:#41536f;
  --ink-3:#74839c;
  --line:#e3e9f4;
  --line-soft:#eef2fa;
  --bg:#f6f8fc;
  --white:#ffffff;
  --radius-xl:24px;
  --radius-lg:20px;
  --radius:14px;
  --radius-sm:10px;
  --shadow-xs:0 2px 6px rgba(15,28,51,.05);
  --shadow-sm:0 8px 24px rgba(22,54,120,.07);
  --shadow-md:0 16px 40px rgba(22,54,120,.10);
  --shadow-lg:0 26px 60px rgba(18,58,156,.16);
  --ease:all .28s cubic-bezier(.4,.2,.2,1);
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",Arial,sans-serif;
  font-size:16px;
  line-height:1.75;
  color:var(--ink);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
a{color:var(--blue-600);text-decoration:none;transition:var(--ease);}
a:hover{color:var(--blue-700);}
img{max-width:100%;height:auto;display:block;}
button{font:inherit;cursor:pointer;border:0;background:none;color:inherit;}
input,select,textarea{font:inherit;color:inherit;}
h1,h2,h3,h4{margin:0;line-height:1.4;font-weight:700;color:var(--ink);}
p{margin:0;}
ul,ol{margin:0;padding:0;list-style:none;}
.site-container{width:100%;max-width:1180px;margin:0 auto;padding:0 24px;}

/* ---------- Header ---------- */
.site-header{
  position:fixed;top:0;left:0;right:0;z-index:120;
  background:rgba(255,255,255,.58);
  -webkit-backdrop-filter:blur(16px) saturate(160%);
  backdrop-filter:blur(16px) saturate(160%);
  border-bottom:1px solid rgba(255,255,255,.65);
  box-shadow:0 4px 22px rgba(18,58,156,.06);
  transition:var(--ease);
}
.site-header.is-solid{
  background:rgba(255,255,255,.94);
  border-bottom-color:var(--line);
  box-shadow:0 10px 30px rgba(18,58,156,.10);
}
.header-inner{
  position:relative;
  display:flex;align-items:center;gap:26px;
  min-height:72px;
}
.brand{display:inline-flex;align-items:center;gap:11px;flex-shrink:0;}
.brand-mark{
  width:40px;height:40px;border-radius:13px;
  display:inline-flex;align-items:center;justify-content:center;
  background:linear-gradient(140deg,var(--blue-500),var(--blue-700));
  color:#fff;font-size:19px;font-weight:700;letter-spacing:.5px;
  box-shadow:0 8px 18px rgba(29,78,216,.32);
}
.brand-text{display:flex;flex-direction:column;line-height:1.2;}
.brand-text strong{font-size:18px;font-weight:700;color:var(--ink);letter-spacing:.5px;}
.brand-text em{font-style:normal;font-size:11px;color:var(--ink-3);letter-spacing:1.6px;}
.site-nav{display:flex;align-items:center;gap:6px;margin-left:auto;}
.nav-link{
  position:relative;display:inline-block;
  padding:9px 15px;border-radius:11px;
  font-size:15px;color:var(--ink-2);font-weight:500;
}
.nav-link:hover{color:var(--blue-600);background:rgba(43,108,240,.08);}
.nav-link.is-active{color:var(--blue-700);font-weight:600;background:rgba(43,108,240,.10);}
.header-cta{
  flex-shrink:0;
  padding:10px 20px;border-radius:12px;
  background:linear-gradient(135deg,var(--blue-500),var(--blue-700));
  color:#fff;font-size:14px;font-weight:600;
  box-shadow:0 10px 22px rgba(29,78,216,.28);
}
.header-cta:hover{color:#fff;transform:translateY(-2px);box-shadow:0 14px 28px rgba(29,78,216,.34);}
.nav-toggle{
  display:none;flex-direction:column;justify-content:center;gap:5px;
  width:42px;height:42px;border-radius:12px;margin-left:auto;
  background:rgba(255,255,255,.85);border:1px solid var(--line);
}
.nav-toggle span{display:block;width:18px;height:2px;margin:0 auto;border-radius:2px;background:var(--ink);transition:var(--ease);}

/* ---------- Buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:13px 25px;border-radius:13px;
  font-size:15px;font-weight:600;line-height:1.2;
  transition:var(--ease);
}
.btn-primary{
  background:linear-gradient(135deg,var(--blue-500),var(--blue-700));
  color:#fff;box-shadow:0 14px 30px rgba(29,78,216,.30);
}
.btn-primary:hover{color:#fff;transform:translateY(-2px);box-shadow:0 18px 36px rgba(29,78,216,.38);}
.btn-primary:active{transform:translateY(0);}
.btn-ghost{
  background:#fff;color:var(--ink);border:1px solid var(--line);
  box-shadow:var(--shadow-xs);
}
.btn-ghost:hover{color:var(--blue-600);border-color:rgba(43,108,240,.45);transform:translateY(-2px);box-shadow:var(--shadow-sm);}
.btn:focus-visible,.nav-link:focus-visible,.header-cta:focus-visible,.dl-btn:focus-visible,a:focus-visible{
  outline:3px solid rgba(43,108,240,.42);outline-offset:2px;
}

/* ---------- Category hero ---------- */
.cat-hero{
  position:relative;
  padding:132px 0 66px;
  background:
    radial-gradient(820px 380px at 88% -12%,rgba(43,108,240,.16),transparent 70%),
    radial-gradient(680px 340px at 2% 4%,rgba(14,165,164,.10),transparent 68%),
    linear-gradient(180deg,#fbfcff 0%,var(--bg) 100%);
  overflow:hidden;
}
.cat-hero::after{
  content:"";position:absolute;left:0;right:0;bottom:0;height:1px;background:var(--line-soft);
}
.crumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--ink-3);}
.crumb a{color:var(--ink-3);}
.crumb a:hover{color:var(--blue-600);}
.crumb span.sep{color:#c3cde0;}
.cat-hero h1{
  margin:18px 0 0;
  font-size:clamp(27px,3.1vw,40px);
  line-height:1.32;
  letter-spacing:-.4px;
  font-weight:800;
  max-width:880px;
}
.cat-hero h1 .hl{
  color:var(--blue-700);
  background:linear-gradient(180deg,transparent 68%,rgba(43,108,240,.20) 68%);
  padding:0 2px;
}
.cat-lead{
  margin-top:20px;max-width:840px;
  font-size:16px;color:var(--ink-2);line-height:1.95;
}
.cat-hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:28px;}
.cat-chips{display:flex;flex-wrap:wrap;gap:10px;margin-top:28px;}
.cat-chips li{
  padding:7px 15px;border-radius:999px;
  background:rgba(255,255,255,.88);
  border:1px solid var(--line);
  font-size:13px;color:var(--ink-2);
  box-shadow:var(--shadow-xs);
}

/* ---------- Sections ---------- */
.section{padding:72px 0;scroll-margin-top:96px;}
.section--white{background:var(--white);border-top:1px solid var(--line-soft);border-bottom:1px solid var(--line-soft);}
.section-head{max-width:760px;margin-bottom:36px;}
.section-tag{
  display:inline-flex;align-items:center;gap:8px;
  padding:6px 14px;border-radius:999px;
  background:rgba(43,108,240,.10);color:var(--blue-700);
  font-size:13px;font-weight:600;letter-spacing:.4px;
}
.section-tag::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--teal-500);}
.section-head h2{
  margin-top:16px;
  font-size:clamp(22px,2.4vw,30px);
  line-height:1.38;letter-spacing:-.2px;
}
.section-head p{margin-top:14px;color:var(--ink-2);font-size:15.5px;line-height:1.9;}

/* ---------- Board ---------- */
.board-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:20px;}
.board-card{
  min-width:0;
  background:var(--white);
  border:1px solid var(--line);
  border-radius:var(--radius-lg);
  padding:26px 22px;
  box-shadow:var(--shadow-sm);
  transition:var(--ease);
}
.board-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-md);border-color:rgba(43,108,240,.28);}
.board-num{
  display:inline-flex;align-items:center;justify-content:center;
  width:38px;height:38px;border-radius:12px;
  background:var(--blue-050);color:var(--blue-700);
  font-size:14px;font-weight:700;letter-spacing:.5px;
}
.board-card h3{margin-top:16px;font-size:17px;}
.board-card p{margin-top:10px;font-size:14px;color:var(--ink-2);line-height:1.85;}

/* ---------- Matrix ---------- */
.matrix-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:22px;}
.matrix-card{
  min-width:0;
  background:linear-gradient(180deg,#ffffff,#fbfcff);
  border:1px solid var(--line);
  border-radius:var(--radius-lg);
  padding:28px 24px;
  box-shadow:var(--shadow-sm);
  transition:var(--ease);
}
.matrix-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-md);border-color:rgba(43,108,240,.30);}
.matrix-icon{
  width:44px;height:44px;border-radius:14px;
  display:inline-flex;align-items:center;justify-content:center;
  background:linear-gradient(140deg,rgba(43,108,240,.14),rgba(14,165,164,.14));
  color:var(--blue-700);font-size:17px;font-weight:700;
}
.matrix-card h3{margin-top:16px;font-size:17.5px;}
.matrix-card p{margin-top:10px;font-size:14.5px;color:var(--ink-2);line-height:1.85;}
.matrix-card ul{margin-top:12px;display:grid;gap:7px;}
.matrix-card li{
  position:relative;padding-left:16px;
  font-size:14px;color:var(--ink-2);line-height:1.8;
}
.matrix-card li::before{
  content:"";position:absolute;left:0;top:.72em;
  width:6px;height:6px;border-radius:50%;
  background:rgba(43,108,240,.55);
}

/* ---------- Compare ---------- */
.compare-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:24px;}
.compare-card{
  min-width:0;
  background:var(--white);
  border:1px solid var(--line);
  border-radius:var(--radius-lg);
  padding:28px 26px;
  box-shadow:var(--shadow-sm);
}
.compare-card.is-accent{
  border-color:rgba(43,108,240,.30);
  background:linear-gradient(180deg,#f7faff,#ffffff);
  box-shadow:var(--shadow-md);
}
.compare-head{display:flex;align-items:center;justify-content:space-between;gap:12px;}
.compare-head h3{font-size:18px;}
.compare-badge{
  padding:4px 12px;border-radius:999px;
  font-size:12px;font-weight:600;
  background:rgba(14,165,164,.12);color:#0b7f7e;
}
.compare-card.is-accent .compare-badge{background:rgba(43,108,240,.12);color:var(--blue-700);}
.compare-rows{margin-top:18px;display:grid;gap:14px;}
.compare-row{
  display:grid;grid-template-columns:96px minmax(0,1fr);gap:12px;
  padding-bottom:14px;border-bottom:1px dashed var(--line);
}
.compare-row:last-child{border-bottom:0;padding-bottom:0;}
.compare-row dt{font-size:13.5px;color:var(--ink-3);font-weight:600;}
.compare-row dd{margin:0;font-size:14.5px;color:var(--ink-2);line-height:1.8;min-width:0;}

/* ---------- Timeline ---------- */
.timeline-list{display:grid;gap:16px;}
.timeline-item{
  display:grid;grid-template-columns:56px minmax(0,1fr);
  gap:20px;align-items:start;
  background:var(--white);
  border:1px solid var(--line);
  border-radius:var(--radius-lg);
  padding:24px 26px;
  box-shadow:var(--shadow-xs);
  transition:var(--ease);
}
.timeline-item:hover{box-shadow:var(--shadow-sm);transform:translateX(4px);}
.timeline-step{
  width:52px;height:52px;border-radius:16px;
  display:flex;align-items:center;justify-content:center;
  background:linear-gradient(140deg,var(--blue-500),var(--blue-700));
  color:#fff;font-size:16px;font-weight:700;
  box-shadow:0 10px 22px rgba(29,78,216,.24);
}
.timeline-body{min-width:0;}
.timeline-body h3{font-size:17px;}
.timeline-body p{margin-top:8px;font-size:14.5px;color:var(--ink-2);line-height:1.85;}

/* ---------- Scenes ---------- */
.scene-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:22px;}
.scene-card{
  min-width:0;
  display:flex;gap:18px;
  background:var(--white);
  border:1px solid var(--line);
  border-radius:var(--radius-lg);
  padding:26px;
  box-shadow:var(--shadow-sm);
  transition:var(--ease);
}
.scene-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-md);border-color:rgba(43,108,240,.26);}
.scene-mark{
  flex:0 0 46px;width:46px;height:46px;border-radius:14px;
  display:flex;align-items:center;justify-content:center;
  background:var(--blue-050);color:var(--blue-700);
  font-size:15px;font-weight:700;
}
.scene-body{min-width:0;}
.scene-body h3{font-size:17px;}
.scene-body p{margin-top:8px;font-size:14.5px;color:var(--ink-2);line-height:1.85;}

/* ---------- News ---------- */
.news-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:22px;}
.news-card{
  min-width:0;
  display:flex;flex-direction:column;
  background:var(--white);
  border:1px solid var(--line);
  border-radius:var(--radius-lg);
  padding:24px;
  box-shadow:var(--shadow-sm);
  transition:var(--ease);
}
.news-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-md);border-color:rgba(43,108,240,.28);}
.news-meta{display:flex;flex-wrap:wrap;align-items:center;gap:10px;font-size:12.5px;color:var(--ink-3);}
.news-tag{
  padding:3px 11px;border-radius:999px;
  background:rgba(43,108,240,.10);color:var(--blue-700);font-weight:600;
}
.news-title{margin-top:12px;font-size:16.5px;line-height:1.6;}
.news-title a{color:var(--ink);}
.news-title a:hover{color:var(--blue-600);}
.news-desc{margin-top:10px;font-size:14px;color:var(--ink-2);line-height:1.85;}
.news-more{
  margin-top:auto;padding-top:16px;
  font-size:14px;font-weight:600;color:var(--blue-600);
  display:inline-flex;align-items:center;gap:6px;
}
.news-more::after{content:"→";transition:var(--ease);}
.news-more:hover::after{transform:translateX(4px);}
.news-empty{
  padding:34px 24px;border-radius:var(--radius-lg);
  background:var(--white);border:1px dashed var(--line);
  color:var(--ink-3);font-size:14.5px;text-align:center;
}

/* ---------- Guard ---------- */
.guard-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:20px;}
.guard-item{
  min-width:0;
  display:flex;gap:16px;
  padding:24px;
  background:linear-gradient(180deg,#f8fbff,#ffffff);
  border:1px solid var(--line);
  border-radius:var(--radius-lg);
  box-shadow:var(--shadow-xs);
}
.guard-dot{
  flex:0 0 10px;width:10px;height:10px;border-radius:50%;
  margin-top:9px;background:var(--blue-500);
  box-shadow:0 0 0 5px rgba(43,108,240,.12);
}
.guard-body{min-width:0;}
.guard-body h3{font-size:16.5px;}
.guard-body p{margin-top:8px;font-size:14.5px;color:var(--ink-2);line-height:1.85;}
.guard-note{
  margin-top:24px;padding:20px 24px;border-radius:var(--radius);
  background:rgba(255,244,229,.72);
  border:1px solid #f5dfbf;
  color:#8a5a12;font-size:14px;line-height:1.85;
}

/* ---------- Quick + FAQ ---------- */
.quick-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:20px;margin-bottom:34px;}
.quick-card{
  min-width:0;
  padding:22px;
  border-radius:var(--radius-lg);
  background:var(--white);
  border:1px solid var(--line);
  box-shadow:var(--shadow-xs);
}
.quick-card h3{font-size:15.5px;color:var(--blue-700);}
.quick-card p{margin-top:8px;font-size:14px;color:var(--ink-2);line-height:1.85;}
.faq-list{display:grid;gap:14px;}
.faq-item{
  background:var(--white);
  border:1px solid var(--line);
  border-radius:var(--radius);
  box-shadow:var(--shadow-xs);
  overflow:hidden;
  transition:var(--ease);
}
.faq-item[open]{border-color:rgba(43,108,240,.30);box-shadow:var(--shadow-sm);}
.faq-item summary{
  list-style:none;
  cursor:pointer;
  padding:20px 56px 20px 24px;
  position:relative;
  font-size:16px;font-weight:600;color:var(--ink);
  transition:var(--ease);
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary:hover{color:var(--blue-600);}
.faq-item summary::after{
  content:"+";position:absolute;right:22px;top:50%;
  transform:translateY(-50%);
  width:26px;height:26px;border-radius:9px;
  display:flex;align-items:center;justify-content:center;
  background:var(--blue-050);color:var(--blue-700);
  font-size:16px;font-weight:700;line-height:1;
}
.faq-item[open] summary::after{content:"−";}
.faq-answer{padding:0 24px 22px;font-size:14.5px;color:var(--ink-2);line-height:1.9;}

/* ---------- Download + Check ---------- */
.dl-panel{
  display:grid;grid-template-columns:minmax(0,1.05fr) minmax(0,.95fr);
  gap:34px;align-items:start;
  background:linear-gradient(150deg,#16306f,#123a9c 55%,#1d4ed8);
  border-radius:var(--radius-xl);
  padding:44px 42px;
  box-shadow:var(--shadow-lg);
  color:#e8f0ff;
}
.dl-panel h2{color:#fff;font-size:clamp(21px,2.3vw,28px);line-height:1.4;}
.dl-panel p.dl-desc{margin-top:14px;font-size:14.5px;line-height:1.9;color:rgba(232,240,255,.86);}
.dl-buttons{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:12px;margin-top:26px;}
.dl-btn{
  min-width:0;
  display:flex;flex-direction:column;align-items:center;gap:5px;
  padding:15px 10px;border-radius:14px;
  background:rgba(255,255,255,.14);
  border:1px solid rgba(255,255,255,.26);
  color:#fff;font-size:14.5px;font-weight:600;
  text-align:center;transition:var(--ease);
}
.dl-btn span.dl-sub{font-size:11.5px;font-weight:400;color:rgba(232,240,255,.70);letter-spacing:.4px;}
.dl-btn:hover{background:rgba(255,255,255,.24);color:#fff;transform:translateY(-3px);border-color:rgba(255,255,255,.5);}
.dl-btn.is-main{background:#fff;color:var(--blue-700);border-color:#fff;}
.dl-btn.is-main:hover{background:#f2f6ff;color:var(--blue-700);}
.dl-btn.is-main span.dl-sub{color:var(--ink-3);}
.check-box{
  background:rgba(255,255,255,.10);
  border:1px solid rgba(255,255,255,.22);
  border-radius:var(--radius-lg);
  padding:26px 24px;
}
.check-box h3{color:#fff;font-size:17px;}
.check-box > p{margin-top:8px;font-size:13.5px;color:rgba(232,240,255,.74);line-height:1.8;}
.check-list{margin-top:16px;display:grid;gap:11px;}
.check-item{
  display:flex;gap:11px;align-items:flex-start;
  font-size:14px;color:rgba(240,246,255,.92);line-height:1.75;
  cursor:pointer;
}
.check-item input{
  flex:0 0 17px;width:17px;height:17px;margin-top:4px;
  accent-color:#63a4ff;cursor:pointer;
}
.check-btn{
  margin-top:20px;width:100%;
  padding:12px 18px;border-radius:12px;
  background:#fff;color:var(--blue-700);
  font-size:14.5px;font-weight:600;
  transition:var(--ease);
}
.check-btn:hover{background:#eef4ff;transform:translateY(-2px);}
.check-result{
  margin-top:14px;font-size:13.5px;line-height:1.8;
  color:#cfe0ff;min-height:24px;
}

/* ---------- Footer ---------- */
.site-footer{
  background:#0c1730;color:#b9c7e0;
  padding:56px 0 26px;margin-top:0;
}
.footer-grid{
  display:grid;grid-template-columns:minmax(0,1.5fr) repeat(2,minmax(0,1fr));
  gap:40px;
}
.footer-brand .brand{margin-bottom:16px;}
.footer-brand .brand-text strong{color:#fff;}
.footer-brand .brand-text em{color:#8fa4c8;}
.footer-brand p{font-size:14px;line-height:1.9;color:#a3b4d2;max-width:460px;}
.footer-col h3{font-size:15px;color:#fff;margin-bottom:14px;letter-spacing:.4px;}
.footer-col ul{display:grid;gap:10px;}
.footer-col a{color:#a3b4d2;font-size:14px;}
.footer-col a:hover{color:#fff;}
.footer-bottom{
  margin-top:38px;padding-top:22px;
  border-top:1px solid rgba(255,255,255,.10);
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:12px;
  font-size:13px;color:#8ea1c1;
}
.footer-note{margin:0;}

/* ---------- Responsive ---------- */
@media (max-width:1024px){
  .board-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
  .matrix-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
  .news-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
  .quick-grid{grid-template-columns:1fr;}
  .dl-panel{grid-template-columns:1fr;padding:36px 30px;}
  .footer-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
}
@media (max-width:900px){
  .site-nav{
    position:absolute;top:calc(100% + 10px);left:0;right:0;
    flex-direction:column;align-items:stretch;gap:4px;
    padding:12px;
    background:rgba(255,255,255,.98);
    border:1px solid var(--line);
    border-radius:var(--radius);
    box-shadow:var(--shadow-md);
    display:none;
  }
  .site-nav.is-open{display:flex;}
  .nav-link{padding:12px 14px;}
  .header-cta{display:none;}
  .nav-toggle{display:flex;}
}
@media (max-width:768px){
  .site-container{padding:0 18px;}
  .cat-hero{padding:118px 0 52px;}
  .section{padding:56px 0;}
  .compare-grid{grid-template-columns:1fr;}
  .scene-grid{grid-template-columns:1fr;}
  .guard-grid{grid-template-columns:1fr;}
  .timeline-item{grid-template-columns:44px minmax(0,1fr);gap:16px;padding:20px;}
  .timeline-step{width:44px;height:44px;border-radius:13px;font-size:15px;}
  .dl-buttons{grid-template-columns:1fr;}
  .footer-grid{grid-template-columns:1fr;gap:28px;}
}
@media (max-width:520px){
  body{font-size:15.5px;}
  .board-grid{grid-template-columns:1fr;}
  .matrix-grid{grid-template-columns:1fr;}
  .news-grid{grid-template-columns:1fr;}
  .brand-text em{display:none;}
  .cat-hero-actions .btn{width:100%;}
  .compare-row{grid-template-columns:1fr;gap:4px;}
  .dl-panel{padding:28px 20px;border-radius:var(--radius-lg);}
  .faq-item summary{padding:17px 52px 17px 18px;font-size:15px;}
  .faq-answer{padding:0 18px 18px;}
}

/* roulang page: article */
:root{
  --blue-700:#123a9c;
  --blue-600:#1d4ed8;
  --blue-500:#2b6cf0;
  --blue-050:#eef4ff;
  --teal-500:#0ea5a4;
  --ink:#0f1c33;
  --ink-2:#41536f;
  --ink-3:#74839c;
  --line:#e3e9f4;
  --line-soft:#eef2fa;
  --bg:#f6f8fc;
  --white:#ffffff;
  --radius-xl:24px;
  --radius-lg:20px;
  --radius:14px;
  --radius-sm:10px;
  --shadow-xs:0 2px 6px rgba(15,28,51,.05);
  --shadow-sm:0 8px 24px rgba(22,54,120,.07);
  --shadow-md:0 16px 40px rgba(22,54,120,.10);
  --shadow-lg:0 26px 60px rgba(18,58,156,.16);
  --ease:all .28s cubic-bezier(.4,.2,.2,1);
}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",Arial,sans-serif;
  font-size:16px;
  line-height:1.75;
  color:var(--ink);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
a{color:var(--blue-600);text-decoration:none;transition:var(--ease);}
a:hover{color:var(--blue-700);}
img{max-width:100%;height:auto;display:block;}
button{font:inherit;cursor:pointer;border:0;background:none;color:inherit;}
input,select,textarea{font:inherit;color:inherit;}
h1,h2,h3,h4{margin:0;}
p{margin:0;}
ul,ol{margin:0;padding:0;}
:focus-visible{outline:2px solid var(--blue-500);outline-offset:3px;border-radius:6px;}
.site-container{width:100%;max-width:1180px;margin:0 auto;padding:0 24px;}
/* ---------- Header ---------- */
.site-header{
  position:fixed;top:0;left:0;right:0;z-index:120;
  background:rgba(255,255,255,.58);
  -webkit-backdrop-filter:blur(16px) saturate(160%);
  backdrop-filter:blur(16px) saturate(160%);
  border-bottom:1px solid rgba(255,255,255,.65);
  box-shadow:0 4px 22px rgba(18,58,156,.06);
  transition:var(--ease);
}
.site-header.is-solid{
  background:rgba(255,255,255,.94);
  border-bottom-color:var(--line);
  box-shadow:0 10px 30px rgba(18,58,156,.10);
}
.header-inner{
  position:relative;
  display:flex;align-items:center;gap:26px;
  min-height:72px;
}
.brand{display:inline-flex;align-items:center;gap:11px;flex-shrink:0;}
.brand-mark{
  width:40px;height:40px;border-radius:13px;
  display:inline-flex;align-items:center;justify-content:center;
  background:linear-gradient(140deg,var(--blue-500),var(--blue-700));
  color:#fff;font-size:19px;font-weight:700;letter-spacing:.5px;
  box-shadow:0 8px 18px rgba(29,78,216,.32);
}
.brand-text{display:flex;flex-direction:column;line-height:1.2;}
.brand-text strong{font-size:18px;font-weight:700;color:var(--ink);letter-spacing:.5px;}
.brand-text em{font-style:normal;font-size:11px;color:var(--ink-3);letter-spacing:1.6px;}
.site-nav{display:flex;align-items:center;gap:6px;margin-left:auto;}
.nav-link{
  position:relative;display:inline-block;
  padding:9px 15px;border-radius:11px;
  font-size:15px;color:var(--ink-2);font-weight:500;
}
.nav-link:hover{color:var(--blue-600);background:rgba(43,108,240,.08);}
.nav-link.is-active{color:var(--blue-700);font-weight:600;background:rgba(43,108,240,.10);}
.header-cta{
  flex-shrink:0;
  padding:10px 20px;border-radius:12px;
  background:linear-gradient(135deg,var(--blue-500),var(--blue-700));
  color:#fff;font-size:14px;font-weight:600;
  box-shadow:0 10px 22px rgba(29,78,216,.28);
}
.header-cta:hover{color:#fff;transform:translateY(-2px);box-shadow:0 14px 28px rgba(29,78,216,.34);}
.nav-toggle{
  display:none;flex-direction:column;justify-content:center;gap:5px;
  width:42px;height:42px;border-radius:12px;margin-left:auto;
  background:rgba(255,255,255,.85);border:1px solid var(--line);
}
.nav-toggle span{display:block;width:18px;height:2px;margin:0 auto;border-radius:2px;background:var(--ink);transition:var(--ease);}
/* ---------- Buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:13px 25px;border-radius:13px;
  font-size:15px;font-weight:600;line-height:1.2;
  transition:var(--ease);
}
.btn-primary{
  background:linear-gradient(135deg,var(--blue-500),var(--blue-700));
  color:#fff;box-shadow:0 14px 30px rgba(29,78,216,.30);
}
.btn-primary:hover{color:#fff;transform:translateY(-2px);box-shadow:0 18px 36px rgba(29,78,216,.38);}
.btn-primary:active{transform:translateY(0);}
.btn-ghost{
  background:#fff;color:var(--ink);border:1px solid var(--line);
  box-shadow:var(--shadow-xs);
}
.btn-ghost:hover{color:var(--blue-600);border-color:rgba(43,108,240,.45);transform:translateY(-2px);box-shadow:var(--shadow-sm);}
/* ---------- Shared bits ---------- */
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  padding:7px 15px;border-radius:999px;
  background:rgba(43,108,240,.10);color:var(--blue-700);
  font-size:13px;font-weight:600;letter-spacing:.4px;
}
.eyebrow::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--teal-500);}
.section{padding:64px 0;}
.section-alt{background:#fff;border-top:1px solid var(--line-soft);border-bottom:1px solid var(--line-soft);}
.section-head{max-width:760px;margin-bottom:30px;}
.section-head h2{margin-top:14px;font-size:clamp(22px,2.4vw,30px);font-weight:800;line-height:1.36;letter-spacing:-.3px;color:var(--ink);}
.section-head p{margin-top:12px;color:var(--ink-2);font-size:15px;line-height:1.9;}
/* ---------- Page main / article hero ---------- */
main.page-main{padding-top:72px;}
.article-hero{
  position:relative;
  padding:46px 0 40px;
  background:
    radial-gradient(760px 340px at 88% -20%,rgba(43,108,240,.14),transparent 70%),
    radial-gradient(560px 300px at 2% 4%,rgba(14,165,164,.10),transparent 66%),
    linear-gradient(180deg,#fbfcff 0%,var(--bg) 100%);
  border-bottom:1px solid var(--line-soft);
}
.crumbs{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--ink-3);}
.crumbs a{color:var(--ink-2);}
.crumbs a:hover{color:var(--blue-600);}
.crumbs .sep{color:#c3cee0;}
.article-hero h1{
  margin-top:16px;
  font-size:clamp(24px,2.9vw,36px);
  line-height:1.38;
  font-weight:800;
  letter-spacing:-.4px;
  color:var(--ink);
  max-width:900px;
  overflow-wrap:break-word;
}
.article-meta{display:flex;flex-wrap:wrap;align-items:center;gap:10px 20px;margin-top:18px;font-size:13px;color:var(--ink-3);}
.meta-item{display:inline-flex;align-items:center;gap:6px;}
.meta-dot{width:5px;height:5px;border-radius:50%;background:var(--teal-500);}
.lead-box{
  margin-top:22px;
  max-width:900px;
  padding:18px 22px;
  background:rgba(255,255,255,.86);
  border:1px solid var(--line);
  border-left:4px solid var(--blue-500);
  border-radius:0 var(--radius) var(--radius) 0;
  box-shadow:var(--shadow-xs);
}
.lead-box span{display:block;font-size:12px;letter-spacing:1.4px;color:var(--blue-700);font-weight:700;}
.lead-box p{margin-top:8px;font-size:15px;line-height:1.9;color:var(--ink-2);}
/* ---------- Article layout ---------- */
.article-shell{
  display:grid;
  grid-template-columns:minmax(0,1fr) 320px;
  gap:34px;
  align-items:start;
  padding:48px 0 12px;
}
.article-body{
  min-width:0;
  background:#fff;
  border:1px solid var(--line);
  border-radius:var(--radius-lg);
  padding:34px 32px;
  box-shadow:var(--shadow-sm);
  font-size:16px;
  line-height:1.95;
  color:var(--ink-2);
  overflow-wrap:break-word;
}
.article-body h2{
  margin:32px 0 14px;
  padding-left:12px;
  border-left:4px solid var(--blue-500);
  font-size:21px;
  line-height:1.45;
  font-weight:800;
  color:var(--ink);
}
.article-body h3{margin:26px 0 12px;font-size:17.5px;line-height:1.5;font-weight:700;color:var(--ink);}
.article-body h4{margin:20px 0 10px;font-size:16px;font-weight:700;color:var(--ink);}
.article-body p{margin:0 0 16px;}
.article-body ul,.article-body ol{margin:0 0 16px;padding-left:22px;}
.article-body li{margin-bottom:8px;}
.article-body a{color:var(--blue-600);text-decoration:underline;text-underline-offset:3px;}
.article-body img{border-radius:var(--radius);margin:20px 0;box-shadow:var(--shadow-xs);}
.article-body blockquote{
  margin:20px 0;
  padding:16px 20px;
  background:var(--blue-050);
  border-left:4px solid var(--blue-500);
  border-radius:0 var(--radius) var(--radius) 0;
  color:var(--ink-2);
}
.article-body blockquote p:last-child{margin-bottom:0;}
.article-body table{width:100%;border-collapse:collapse;margin:18px 0;font-size:14px;}
.article-body th,.article-body td{border:1px solid var(--line);padding:10px 12px;text-align:left;}
.article-body th{background:var(--blue-050);color:var(--ink);font-weight:700;}
.article-body strong{color:var(--ink);}
.article-body hr{border:0;border-top:1px solid var(--line);margin:26px 0;}
.article-empty{text-align:center;padding:56px 28px;}
.article-empty h2{border-left:0;padding-left:0;justify-content:center;}
.article-empty p{margin:10px 0 22px;}
.article-side{display:grid;gap:16px;min-width:0;}
.side-card{
  min-width:0;
  background:#fff;
  border:1px solid var(--line);
  border-radius:var(--radius-lg);
  padding:22px;
  box-shadow:var(--shadow-xs);
}
.side-card h3{font-size:15.5px;font-weight:700;color:var(--ink);margin-bottom:14px;display:flex;align-items:center;gap:8px;}
.side-card h3::before{content:"";width:6px;height:16px;border-radius:3px;background:linear-gradient(180deg,var(--blue-500),var(--teal-500));}
.side-list{list-style:none;display:grid;gap:11px;}
.side-list li{position:relative;padding-left:16px;font-size:14px;line-height:1.8;color:var(--ink-2);}
.side-list li::before{content:"";position:absolute;left:0;top:10px;width:6px;height:6px;border-radius:50%;background:var(--blue-500);}
.side-dl{display:grid;gap:9px;}
.side-dl a{
  display:flex;align-items:center;justify-content:space-between;gap:10px;
  padding:11px 14px;border-radius:11px;
  background:var(--blue-050);color:var(--blue-700);
  font-size:14px;font-weight:600;
}
.side-dl a:hover{background:var(--blue-600);color:#fff;transform:translateX(2px);}
.side-note{margin-top:12px;font-size:12.5px;line-height:1.8;color:var(--ink-3);}
/* ---------- Focus cards ---------- */
.focus-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:20px;}
.focus-card{
  min-width:0;
  background:#fff;border:1px solid var(--line);border-radius:var(--radius-lg);
  padding:26px 24px;box-shadow:var(--shadow-xs);transition:var(--ease);
}
.focus-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-md);border-color:rgba(43,108,240,.35);}
.focus-icon{
  width:44px;height:44px;border-radius:13px;
  display:flex;align-items:center;justify-content:center;
  background:var(--blue-050);color:var(--blue-700);
  font-size:16px;font-weight:800;
}
.focus-card h3{margin:16px 0 8px;font-size:17px;font-weight:700;color:var(--ink);}
.focus-card p{font-size:14.5px;line-height:1.86;color:var(--ink-2);}
/* ---------- Check list ---------- */
.check-list{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:14px;}
.check-item{
  display:flex;gap:12px;min-width:0;
  background:#fff;border:1px solid var(--line);border-radius:var(--radius);
  padding:17px 18px;box-shadow:var(--shadow-xs);transition:var(--ease);
}
.check-item:hover{border-color:rgba(43,108,240,.32);box-shadow:var(--shadow-sm);}
.check-mark{
  flex:0 0 auto;width:22px;height:22px;margin-top:3px;border-radius:50%;
  display:flex;align-items:center;justify-content:center;
  background:var(--blue-050);color:var(--blue-700);font-size:12px;font-weight:700;
}
.check-item strong{display:block;font-size:15px;color:var(--ink);margin-bottom:4px;}
.check-item p{font-size:14px;line-height:1.8;color:var(--ink-2);}
/* ---------- Risk ---------- */
.risk-panel{
  background:#fff;
  border:1px solid var(--line);
  border-left:5px solid #e0a03a;
  border-radius:var(--radius-lg);
  padding:30px 30px 28px;
  box-shadow:var(--shadow-sm);
}
.risk-panel h2{font-size:clamp(20px,2.2vw,26px);font-weight:800;color:var(--ink);line-height:1.4;}
.risk-panel > p{margin-top:12px;font-size:15px;line-height:1.9;color:var(--ink-2);max-width:900px;}
.risk-list{list-style:none;display:grid;gap:10px;margin-top:20px;}
.risk-list li{position:relative;padding-left:20px;font-size:14.8px;line-height:1.85;color:var(--ink-2);}
.risk-list li::before{content:"";position:absolute;left:0;top:11px;width:7px;height:7px;border-radius:2px;background:#e0a03a;}
/* ---------- Download ---------- */
.download-panel{
  position:relative;
  overflow:hidden;
  border-radius:var(--radius-xl);
  padding:44px 40px 40px;
  color:#fff;
  background:
    radial-gradient(640px 320px at 88% -30%,rgba(255,255,255,.20),transparent 62%),
    linear-gradient(135deg,#123a9c 0%,#1d4ed8 58%,#2b6cf0 100%);
  box-shadow:var(--shadow-lg);
}
.download-head{display:flex;flex-wrap:wrap;align-items:flex-end;justify-content:space-between;gap:18px;margin-bottom:26px;}
.download-head h2{font-size:clamp(22px,2.4vw,30px);font-weight:800;line-height:1.36;color:#fff;}
.download-head p{margin-top:10px;max-width:640px;font-size:14.8px;line-height:1.86;color:rgba(255,255,255,.84);}
.download-badge{
  flex:0 0 auto;
  padding:8px 16px;border-radius:999px;
  background:rgba(255,255,255,.16);
  border:1px solid rgba(255,255,255,.30);
  font-size:13px;color:#fff;font-weight:600;
}
.download-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:16px;}
.download-btn{
  display:flex;align-items:center;gap:14px;min-width:0;
  padding:18px 20px;border-radius:var(--radius);
  background:rgba(255,255,255,.14);
  border:1px solid rgba(255,255,255,.28);
  color:#fff;transition:var(--ease);
}
.download-btn:hover{background:#fff;color:var(--blue-700);transform:translateY(-3px);box-shadow:0 16px 30px rgba(6,20,60,.28);}
.dl-mark{
  flex:0 0 auto;width:40px;height:40px;border-radius:12px;
  display:flex;align-items:center;justify-content:center;
  background:rgba(255,255,255,.20);
  font-size:15px;font-weight:800;transition:var(--ease);
}
.download-btn:hover .dl-mark{background:var(--blue-050);color:var(--blue-700);}
.dl-text{min-width:0;display:flex;flex-direction:column;}
.dl-name{font-size:15.5px;font-weight:700;line-height:1.4;}
.dl-desc{font-size:12.5px;opacity:.82;margin-top:2px;line-height:1.6;}
.download-foot{margin-top:22px;font-size:13px;line-height:1.85;color:rgba(255,255,255,.80);}
/* ---------- News / channel ---------- */
.news-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(260px,1fr));gap:14px;}
.news-grid ul{display:contents;list-style:none;margin:0;padding:0;}
.news-grid li{
  min-width:0;
  background:#fff;border:1px solid var(--line);border-radius:var(--radius);
  padding:17px 18px;box-shadow:var(--shadow-xs);transition:var(--ease);
  list-style:none;
}
.news-grid li:hover{border-color:rgba(43,108,240,.42);box-shadow:var(--shadow-sm);transform:translateY(-2px);}
.news-grid li a{display:block;font-size:15px;font-weight:600;line-height:1.65;color:var(--ink);}
.news-grid li a:hover{color:var(--blue-600);}
.empty-note{
  padding:22px 24px;border-radius:var(--radius);
  background:#fff;border:1px dashed var(--line);
  font-size:14px;color:var(--ink-3);
}
.channel-entry{
  margin-top:22px;
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:20px 24px;
  background:#fff;border:1px solid var(--line);border-radius:var(--radius-lg);
  box-shadow:var(--shadow-xs);transition:var(--ease);
}
.channel-entry:hover{border-color:rgba(43,108,240,.45);box-shadow:var(--shadow-sm);transform:translateY(-2px);}
.channel-entry-text{display:flex;flex-direction:column;min-width:0;}
.channel-entry-text strong{font-size:16px;color:var(--ink);}
.channel-entry-text em{font-style:normal;font-size:13.5px;color:var(--ink-3);margin-top:4px;line-height:1.7;}
.channel-entry-go{
  flex:0 0 auto;width:34px;height:34px;border-radius:50%;
  display:flex;align-items:center;justify-content:center;
  background:var(--blue-050);color:var(--blue-700);font-size:16px;
}
/* ---------- FAQ ---------- */
.faq-list{display:grid;gap:12px;}
.faq-item{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius);
  box-shadow:var(--shadow-xs);overflow:hidden;transition:var(--ease);
}
.faq-item[open]{border-color:rgba(43,108,240,.36);box-shadow:var(--shadow-sm);}
.faq-item summary{
  cursor:pointer;list-style:none;
  display:flex;align-items:center;justify-content:space-between;gap:14px;
  padding:17px 20px;
  font-size:15.5px;font-weight:600;color:var(--ink);
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary::after{
  content:"+";flex:0 0 auto;
  width:24px;height:24px;border-radius:50%;
  display:flex;align-items:center;justify-content:center;
  background:var(--blue-050);color:var(--blue-700);font-size:15px;font-weight:700;
  transition:var(--ease);
}
.faq-item[open] summary::after{content:"−";background:var(--blue-600);color:#fff;}
.faq-body{padding:0 20px 18px;font-size:14.8px;line-height:1.9;color:var(--ink-2);}
/* ---------- Footer ---------- */
.site-footer{
  background:#0b1730;
  color:#a9b8d4;
  padding:60px 0 0;
  margin-top:68px;
}
.footer-grid{display:grid;grid-template-columns:minmax(0,1.7fr) minmax(0,1fr) minmax(0,1fr);gap:40px;}
.footer-brand{min-width:0;}
.footer-brand .brand-text strong{color:#fff;}
.footer-brand .brand-text em{color:#7f8fac;}
.footer-brand p{margin-top:16px;font-size:14px;line-height:1.9;color:#93a4c2;max-width:520px;}
.footer-col{min-width:0;}
.footer-col h3{font-size:15px;font-weight:700;color:#fff;margin-bottom:14px;}
.footer-col ul{list-style:none;display:grid;gap:10px;}
.footer-col a{font-size:14px;color:#93a4c2;}
.footer-col a:hover{color:#fff;}
.footer-bottom{
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:10px;
  margin-top:44px;padding-top:20px;padding-bottom:22px;
  border-top:1px solid rgba(255,255,255,.10);
  font-size:13px;color:#7f8fac;
}
.footer-note{color:#7f8fac;}
/* ---------- Responsive ---------- */
@media (max-width:1024px){
  .article-shell{grid-template-columns:minmax(0,1fr);gap:26px;}
  .focus-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
  .download-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
  .footer-grid{grid-template-columns:minmax(0,1fr) minmax(0,1fr);}
  .footer-brand{grid-column:1 / -1;}
}
@media (max-width:860px){
  .header-inner{gap:14px;}
  .header-cta{display:none;}
  .nav-toggle{display:flex;}
  .site-nav{
    position:absolute;top:70px;left:0;right:0;
    flex-direction:column;align-items:stretch;gap:4px;
    margin-left:0;padding:12px;
    background:#fff;border:1px solid var(--line);border-radius:var(--radius);
    box-shadow:var(--shadow-md);
    display:none;
  }
  .site-nav.is-open{display:flex;}
  .nav-link{padding:11px 14px;}
}
@media (max-width:768px){
  .site-container{padding:0 18px;}
  .section{padding:48px 0;}
  .article-hero{padding:34px 0 30px;}
  .article-shell{padding:34px 0 8px;}
  .article-body{padding:24px 20px;font-size:15.5px;}
  .article-body h2{font-size:19px;}
  .focus-grid{grid-template-columns:minmax(0,1fr);}
  .check-list{grid-template-columns:minmax(0,1fr);}
  .download-grid{grid-template-columns:minmax(0,1fr);}
  .download-panel{padding:30px 22px 28px;}
  .risk-panel{padding:24px 20px;}
  .footer-grid{grid-template-columns:minmax(0,1fr);gap:28px;}
  .footer-bottom{justify-content:flex-start;}
}
@media (max-width:520px){
  .brand-text em{display:none;}
  .article-hero h1{font-size:22px;}
  .lead-box{padding:15px 16px;}
  .lead-box p{font-size:14.5px;}
  .side-card{padding:18px;}
  .channel-entry{padding:16px 18px;}
  .faq-item summary{font-size:15px;padding:15px 16px;}
  .faq-body{padding:0 16px 16px;}
}