/* roulang page: index */
:root{
  --primary:#1E4B8F;
  --primary-deep:#163A70;
  --primary-soft:#E8EFF9;
  --accent:#E0862F;
  --accent-deep:#C9741F;
  --ink:#0E1C2E;
  --ink-soft:#45566E;
  --line:#E2E8F1;
  --bg:#FFFFFF;
  --bg-alt:#F6F9FD;
  --radius-card:16px;
  --radius-sm:12px;
  --radius-btn:10px;
  --shadow-card:0 1px 2px rgba(14,28,46,.04),0 8px 24px -12px rgba(14,28,46,.18);
  --shadow-hover:0 12px 32px -12px rgba(14,28,46,.26);
  --shadow-float:0 16px 48px -16px rgba(14,28,46,.30);
  --container:1200px;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:"PingFang TC","Microsoft JhengHei","Noto Sans TC",system-ui,-apple-system,"Segoe UI",sans-serif;
  color:var(--ink);
  background:var(--bg);
  font-size:16px;
  line-height:1.8;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border-style:none;}
a{color:var(--primary);text-decoration:none;transition:color .18s ease;}
a:hover{color:var(--primary-deep);}
button{font-family:inherit;}
h1,h2,h3,h4{margin:0;color:var(--ink);line-height:1.3;font-weight:700;letter-spacing:.01em;}
p{margin:0;}
ul,ol{margin:0;padding:0;list-style:none;}
input,textarea,select{font-family:inherit;font-size:16px;}
:focus-visible{outline:2px solid var(--primary);outline-offset:2px;}

.container{width:100%;max-width:var(--container);margin:0 auto;padding-left:20px;padding-right:20px;}
@media (min-width:768px){.container{padding-left:32px;padding-right:32px;}}

/* ---------- Header ---------- */
.site-header{
  position:sticky;top:0;z-index:90;
  background:#fff;
  border-bottom:1px solid var(--line);
  transition:box-shadow .2s ease;
}
.site-header.is-scrolled{box-shadow:0 4px 20px -12px rgba(14,28,46,.28);}
.nav-wrap{display:flex;align-items:center;gap:24px;height:68px;}
@media (max-width:1023px){.nav-wrap{height:60px;gap:12px;}}
.brand{display:flex;align-items:center;gap:10px;flex:0 0 auto;color:var(--ink);}
.brand:hover{color:var(--ink);}
.brand-mark{
  width:30px;height:30px;border-radius:9px;
  background:var(--primary);color:#fff;
  display:flex;align-items:center;justify-content:center;
  font-size:12px;line-height:1;flex:0 0 auto;
}
.brand-text{font-size:15px;font-weight:700;letter-spacing:.01em;white-space:nowrap;}
@media (max-width:1023px){.brand-text{font-size:13px;}}
@media (max-width:520px){.brand-text{white-space:normal;line-height:1.25;max-width:170px;}}

.nav-links{display:flex;align-items:center;gap:26px;margin-left:8px;}
.nav-link{
  position:relative;font-size:15px;font-weight:500;color:var(--ink-soft);
  padding:6px 0;letter-spacing:.02em;
}
.nav-link::after{
  content:"";position:absolute;left:0;bottom:0;height:2px;width:100%;
  background:var(--primary);transform:scaleX(0);transform-origin:left;
  transition:transform .22s ease;
}
.nav-link:hover{color:var(--primary);}
.nav-link:hover::after,.nav-link.active::after{transform:scaleX(1);}
.nav-link.active{color:var(--primary);font-weight:600;}

.nav-tools{display:flex;align-items:center;gap:14px;margin-left:auto;}
.search-box{
  display:flex;align-items:center;gap:8px;
  background:#fff;border:1px solid var(--line);border-radius:var(--radius-btn);
  padding:0 12px;height:40px;width:220px;
  transition:border-color .18s ease,box-shadow .18s ease;
}
.search-box:focus-within{border-color:var(--primary);box-shadow:0 0 0 3px rgba(30,75,143,.12);}
.search-box svg{flex:0 0 auto;color:#8A98AB;}
.search-box input{
  border:0;outline:0;background:transparent;width:100%;height:100%;
  font-size:14px;color:var(--ink);
}
.search-box input::placeholder{color:#8A98AB;font-size:14px;}

.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  border-radius:var(--radius-btn);border:1px solid transparent;
  font-size:15px;font-weight:600;letter-spacing:.02em;
  padding:11px 22px;min-height:44px;cursor:pointer;
  transition:transform .18s ease,background .18s ease,box-shadow .18s ease,color .18s ease,border-color .18s ease;
}
.btn:active{transform:translateY(0);}
.btn-accent{
  background:var(--accent);color:#fff;border-radius:999px;
  box-shadow:0 8px 20px -12px rgba(224,134,47,.85);
}
.btn-accent:hover{background:var(--accent-deep);color:#fff;transform:translateY(-1px);box-shadow:0 12px 26px -12px rgba(201,116,31,.9);}
.btn-primary{background:var(--primary);color:#fff;}
.btn-primary:hover{background:var(--primary-deep);color:#fff;transform:translateY(-1px);box-shadow:var(--shadow-hover);}
.btn-ghost{background:#fff;color:var(--primary);border-color:var(--line);}
.btn-ghost:hover{background:var(--primary-soft);color:var(--primary-deep);border-color:#CBD9EE;transform:translateY(-1px);}
.btn-outline-light{background:rgba(255,255,255,.08);color:#fff;border-color:rgba(255,255,255,.5);}
.btn-outline-light:hover{background:rgba(255,255,255,.18);color:#fff;transform:translateY(-1px);}
.btn-block{width:100%;}

.nav-cta{padding:10px 20px;font-size:14px;min-height:40px;}
.nav-toggle{
  display:none;width:44px;height:44px;border:1px solid var(--line);border-radius:var(--radius-btn);
  background:#fff;align-items:center;justify-content:center;flex-direction:column;gap:5px;cursor:pointer;
}
.nav-toggle span{display:block;width:18px;height:2px;background:var(--ink);border-radius:2px;transition:transform .22s ease,opacity .22s ease;}
.nav-toggle.is-open span:nth-child(1){transform:translateY(7px) rotate(45deg);}
.nav-toggle.is-open span:nth-child(2){opacity:0;}
.nav-toggle.is-open span:nth-child(3){transform:translateY(-7px) rotate(-45deg);}

@media (max-width:1023px){
  .search-box{display:none;}
  .nav-toggle{display:flex;}
  .nav-links{
    position:fixed;left:0;right:0;top:0;bottom:0;
    background:#fff;z-index:80;
    display:flex;flex-direction:column;align-items:flex-start;gap:0;
    padding:88px 24px 32px;margin:0;
    transform:translateX(100%);transition:transform .28s ease;
    overflow-y:auto;
  }
  .nav-links.is-open{transform:translateX(0);}
  .nav-link{
    width:100%;font-size:19px;font-weight:600;padding:18px 0;
    border-bottom:1px solid var(--line);
  }
  .nav-link::after{display:none;}
  .nav-tools{z-index:81;}
  .nav-cta{display:none;}
}

/* ---------- Hero ---------- */
.hero{position:relative;overflow:hidden;background:var(--primary-deep);}
.hero-media{position:absolute;inset:0;}
.hero-media img{width:100%;height:100%;object-fit:cover;}
.hero-veil{
  position:absolute;inset:0;
  background:linear-gradient(100deg,rgba(11,28,52,.94) 0%,rgba(16,44,84,.86) 42%,rgba(22,58,112,.55) 70%,rgba(22,58,112,.35) 100%);
}
.hero-inner{position:relative;padding-top:76px;padding-bottom:76px;}
@media (min-width:768px){.hero-inner{padding-top:104px;padding-bottom:104px;}}
.hero-copy{max-width:680px;color:#fff;}
.eyebrow{
  display:inline-block;font-size:12px;font-weight:600;letter-spacing:.14em;
  color:#BFD4F2;text-transform:uppercase;margin-bottom:16px;
}
.hero h1{
  color:#fff;font-size:clamp(30px,4.2vw,50px);font-weight:800;line-height:1.24;
  letter-spacing:.01em;
}
.hero-sub{
  margin-top:20px;font-size:17px;line-height:1.85;color:rgba(255,255,255,.88);
  max-width:580px;
}
@media (max-width:520px){.hero-sub{font-size:16px;}}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:32px;}
.hero-stats{
  display:flex;flex-wrap:wrap;gap:0;margin-top:44px;
  border-top:1px solid rgba(255,255,255,.2);padding-top:22px;max-width:560px;
}
.hero-stats li{
  flex:1 1 0;min-width:110px;padding-right:18px;
}
.hero-stats li + li{border-left:1px solid rgba(255,255,255,.2);padding-left:18px;}
.hero-stats strong{display:block;font-size:26px;font-weight:800;color:#fff;line-height:1.2;}
.hero-stats span{display:block;font-size:13px;color:rgba(255,255,255,.7);margin-top:4px;letter-spacing:.02em;}

.hero-note{
  margin-top:14px;
}
.hero-float{
  position:absolute;right:32px;bottom:56px;
  width:280px;background:#fff;border-radius:var(--radius-card);box-shadow:var(--shadow-float);
  padding:16px;display:none;
}
@media (min-width:1180px){.hero-float{display:block;}}
.hero-float img{width:100%;aspect-ratio:16/9;object-fit:cover;border-radius:var(--radius-sm);}
.hero-float h4{font-size:15px;margin-top:12px;}
.hero-float p{font-size:13px;color:var(--ink-soft);margin-top:4px;line-height:1.6;}
.hero-float .bar{height:5px;border-radius:999px;background:var(--primary-soft);margin-top:12px;overflow:hidden;}
.hero-float .bar i{display:block;height:100%;width:68%;background:var(--primary);border-radius:999px;}

/* ---------- Section base ---------- */
.section{padding-top:64px;padding-bottom:64px;}
@media (min-width:768px){.section{padding-top:96px;padding-bottom:96px;}}
.section-alt{background:var(--bg-alt);}
.section-head{display:flex;flex-wrap:wrap;align-items:flex-end;justify-content:space-between;gap:16px;margin-bottom:40px;}
.section-head h2{font-size:clamp(24px,2.6vw,34px);font-weight:800;line-height:1.28;}
.section-head .eyebrow{color:var(--primary);margin-bottom:10px;}
.section-head p{color:var(--ink-soft);font-size:15px;margin-top:10px;max-width:560px;}
.text-link{font-size:15px;font-weight:600;color:var(--primary);display:inline-flex;align-items:center;gap:6px;}
.text-link:hover{color:var(--primary-deep);}
.text-link .arrow{transition:transform .18s ease;}
.text-link:hover .arrow{transform:translateX(4px);}

/* ---------- Value ---------- */
.value-grid{display:grid;gap:40px;}
@media (min-width:1024px){.value-grid{grid-template-columns:0.82fr 1.18fr;gap:56px;align-items:start;}}
.value-copy h2{font-size:clamp(24px,2.6vw,34px);font-weight:800;line-height:1.3;}
.value-copy p{color:var(--ink-soft);margin-top:18px;font-size:16px;line-height:1.9;}
.value-copy .text-link{margin-top:24px;}

.stair-grid{display:grid;grid-template-columns:1fr;gap:20px;}
@media (min-width:640px){.stair-grid{grid-template-columns:1fr 1fr;}}
@media (min-width:640px){.stair-grid > *:nth-child(even){transform:translateY(24px);}}
.stair-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius-card);
  padding:24px;box-shadow:var(--shadow-card);
  transition:transform .18s ease,box-shadow .18s ease,border-color .18s ease;
}
.stair-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover);border-color:#CBD9EE;}
.stair-card .num{
  display:inline-flex;align-items:center;justify-content:center;
  width:38px;height:38px;border-radius:11px;background:var(--primary-soft);
  color:var(--primary);font-weight:800;font-size:14px;letter-spacing:.04em;margin-bottom:16px;
}
.stair-card h3{font-size:18px;font-weight:700;}
.stair-card p{margin-top:10px;color:var(--ink-soft);font-size:15px;line-height:1.8;}

/* ---------- Demo ---------- */
.demo-grid{display:grid;gap:40px;}
@media (min-width:1024px){.demo-grid{grid-template-columns:1.15fr .85fr;gap:56px;align-items:center;}}
.demo-frame{
  position:relative;border-radius:var(--radius-card);overflow:hidden;
  box-shadow:var(--shadow-card);background:#0B1C34;
}
.demo-frame img{width:100%;aspect-ratio:16/9;object-fit:cover;opacity:.85;}
.demo-play{
  position:absolute;inset:0;display:flex;align-items:center;justify-content:center;
}
.demo-play span{
  width:72px;height:72px;border-radius:999px;background:rgba(255,255,255,.92);
  display:flex;align-items:center;justify-content:center;color:var(--primary);
  box-shadow:0 12px 32px -12px rgba(0,0,0,.55);transition:transform .18s ease,background .18s ease;
}
.demo-frame:hover .demo-play span{transform:scale(1.06);background:#fff;}
.demo-duration{
  position:absolute;right:14px;bottom:14px;background:rgba(11,28,52,.78);color:#fff;
  font-size:12px;font-weight:600;padding:4px 10px;border-radius:999px;letter-spacing:.04em;
}
.demo-steps{position:relative;}
.demo-steps::before{
  content:"";position:absolute;left:13px;top:12px;bottom:12px;width:2px;background:var(--line);
}
.demo-step{position:relative;padding-left:46px;}
.demo-step + .demo-step{margin-top:28px;}
.demo-step .dot{
  position:absolute;left:0;top:4px;width:28px;height:28px;border-radius:999px;
  background:#fff;border:2px solid var(--primary);color:var(--primary);
  display:flex;align-items:center;justify-content:center;font-size:13px;font-weight:700;
}
.demo-step h3{font-size:17px;font-weight:700;}
.demo-step p{color:var(--ink-soft);font-size:15px;margin-top:6px;line-height:1.8;}

/* ---------- Proof ---------- */
.proof-stats{display:grid;grid-template-columns:1fr;gap:28px;margin-bottom:48px;}
@media (min-width:640px){.proof-stats{grid-template-columns:repeat(3,1fr);gap:32px;}}
.proof-stat strong{display:block;font-size:clamp(32px,3.6vw,42px);font-weight:800;color:var(--primary);line-height:1.1;letter-spacing:-.01em;}
.proof-stat span{display:block;margin-top:8px;color:var(--ink-soft);font-size:15px;}

.quote-scroll{
  display:flex;gap:20px;overflow-x:auto;padding-bottom:12px;
  scrollbar-width:thin;scrollbar-color:#C7D6EC transparent;
}
.quote-scroll::-webkit-scrollbar{height:6px;}
.quote-scroll::-webkit-scrollbar-thumb{background:#C7D6EC;border-radius:999px;}
.quote-scroll::-webkit-scrollbar-track{background:transparent;}
.quote-card{
  min-width:280px;max-width:340px;flex:0 0 auto;background:#fff;border:1px solid var(--line);
  border-left:3px solid var(--accent);border-radius:var(--radius-card);padding:22px;
  box-shadow:var(--shadow-card);
}
.quote-card p{font-size:16px;line-height:1.85;color:var(--ink);}
.quote-meta{display:flex;align-items:center;gap:10px;margin-top:18px;}
.quote-avatar{width:30px;height:30px;border-radius:999px;background:var(--primary-soft);color:var(--primary);display:flex;align-items:center;justify-content:center;font-size:12px;font-weight:700;}
.quote-meta small{font-size:13px;color:var(--ink-soft);line-height:1.5;}

/* ---------- Templates navigation ---------- */
.tpl-grid{display:grid;gap:24px;}
@media (min-width:1024px){.tpl-grid{grid-template-columns:1.2fr 1fr;align-items:stretch;}}
.tpl-main{
  display:flex;flex-direction:column;background:#fff;border:1px solid var(--line);
  border-radius:var(--radius-card);overflow:hidden;box-shadow:var(--shadow-card);
  transition:transform .18s ease,box-shadow .18s ease;
}
.tpl-main:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover);}
.tpl-main .media{overflow:hidden;}
.tpl-main img{width:100%;aspect-ratio:16/10;object-fit:cover;transition:transform 1.4s ease;}
.tpl-main:hover img{transform:scale(1.03);}
.tpl-main .body{padding:24px;display:flex;flex-direction:column;gap:10px;flex:1;}
.tpl-main h3{font-size:20px;}
.tpl-main p{color:var(--ink-soft);font-size:15px;line-height:1.8;}
.tpl-arrow{margin-top:auto;font-size:14px;font-weight:600;color:var(--primary);display:inline-flex;align-items:center;gap:6px;}
.tpl-main:hover .tpl-arrow .arrow,
.tpl-side-card:hover .tpl-arrow .arrow{transform:translateX(4px);}
.tpl-arrow .arrow{transition:transform .18s ease;}

.tpl-side{display:grid;gap:24px;}
@media (min-width:768px) and (max-width:1023px){.tpl-side{grid-template-columns:1fr 1fr;}}
.tpl-side-card{
  display:flex;gap:16px;align-items:center;background:#fff;border:1px solid var(--line);
  border-radius:var(--radius-card);padding:16px;box-shadow:var(--shadow-card);
  transition:transform .18s ease,box-shadow .18s ease;color:var(--ink);
}
.tpl-side-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover);color:var(--ink);}
.tpl-side-card img{width:96px;height:72px;flex:0 0 auto;object-fit:cover;border-radius:var(--radius-sm);}
.tpl-side-card h3{font-size:16px;font-weight:700;}
.tpl-side-card p{font-size:14px;color:var(--ink-soft);margin-top:4px;line-height:1.6;}
.tpl-side-card .tpl-arrow{font-size:13px;margin-top:8px;}

/* ---------- News / CMS ---------- */
.news-grid{display:grid;gap:24px;}
@media (min-width:768px){.news-grid{grid-template-columns:repeat(2,1fr);}}
@media (min-width:1024px){.news-grid{grid-template-columns:repeat(3,1fr);}}
.news-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius-card);
  overflow:hidden;box-shadow:var(--shadow-card);display:flex;flex-direction:column;
  transition:transform .18s ease,box-shadow .18s ease;
}
.news-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover);}
.news-card-media{display:block;overflow:hidden;background:var(--bg-alt);}
.news-card-media img{width:100%;aspect-ratio:16/9;object-fit:cover;transition:transform 1.4s ease;}
.news-card:hover .news-card-media img{transform:scale(1.03);}
.news-card-body{padding:20px;display:flex;flex-direction:column;gap:10px;flex:1;}
.badge{
  display:inline-flex;align-items:center;font-size:12px;font-weight:600;letter-spacing:.03em;
  padding:4px 10px;border-radius:999px;background:var(--primary-soft);color:var(--primary);
  width:fit-content;
}
.badge-accent{background:#FBEEDF;color:var(--accent-deep);}
.news-card h3{font-size:18px;font-weight:700;line-height:1.5;}
.news-card h3 a{color:var(--ink);}
.news-card h3 a:hover{color:var(--primary);}
.news-card p{font-size:15px;color:var(--ink-soft);line-height:1.8;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.news-meta{margin-top:auto;padding-top:14px;display:flex;align-items:center;justify-content:space-between;font-size:13px;color:#7C8AA0;}
.news-meta a{font-weight:600;color:var(--primary);font-size:13px;}

.news-list{margin-top:32px;border-top:1px solid var(--line);}
.news-row{
  display:flex;align-items:center;gap:16px;padding:16px 12px;border-bottom:1px solid var(--line);
  position:relative;transition:background .18s ease;
}
.news-row::before{
  content:"";position:absolute;left:0;top:0;bottom:0;width:3px;background:var(--primary);
  transform:scaleY(0);transform-origin:top;transition:transform .2s ease;
}
.news-row:hover{background:var(--bg-alt);}
.news-row:hover::before{transform:scaleY(1);}
.news-row .cat{
  flex:0 0 auto;font-size:12px;font-weight:600;color:var(--primary);
  background:var(--primary-soft);border-radius:999px;padding:4px 10px;
}
.news-row .title{flex:1 1 auto;font-size:16px;font-weight:600;color:var(--ink);line-height:1.6;}
.news-row:hover .title{color:var(--primary);}
.news-row .date{flex:0 0 auto;font-size:13px;color:#7C8AA0;}
.news-row .go{flex:0 0 auto;color:var(--primary);transition:transform .18s ease;}
.news-row:hover .go{transform:translateX(4px);}
@media (max-width:640px){
  .news-row{flex-wrap:wrap;gap:8px;}
  .news-row .title{flex:1 1 100%;order:3;font-size:15px;}
  .news-row .date{margin-left:auto;}
}

.news-empty{
  border:1px dashed #CBD9EE;border-radius:var(--radius-card);background:#fff;
  padding:56px 24px;text-align:center;color:var(--ink-soft);
}
.news-empty svg{margin:0 auto 14px;color:#A9BBD6;}
.news-empty p{font-size:15px;}

/* ---------- Price ---------- */
.price-grid{display:grid;gap:24px;}
@media (min-width:900px){.price-grid{grid-template-columns:1fr 1fr;gap:28px;}}
.price-card{
  position:relative;background:#fff;border:1px solid var(--line);border-radius:var(--radius-card);
  padding:32px;box-shadow:var(--shadow-card);display:flex;flex-direction:column;
  transition:transform .18s ease,box-shadow .18s ease;
}
.price-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover);}
.price-card.featured{
  background:linear-gradient(160deg,var(--primary) 0%,var(--primary-deep) 100%);
  border-color:var(--primary-deep);color:#fff;
}
.price-card.featured h3,.price-card.featured .price-num,.price-card.featured .price-unit{color:#fff;}
.price-card.featured li{color:rgba(255,255,255,.9);}
.price-tag{
  position:absolute;right:24px;top:-13px;background:var(--accent);color:#fff;
  font-size:12px;font-weight:700;letter-spacing:.06em;padding:5px 14px;border-radius:999px;
  box-shadow:0 8px 18px -10px rgba(224,134,47,.9);
}
.price-card h3{font-size:20px;font-weight:700;}
.price-card .price-desc{font-size:14px;color:var(--ink-soft);margin-top:8px;}
.price-card.featured .price-desc{color:rgba(255,255,255,.78);}
.price-num{font-size:40px;font-weight:800;line-height:1.1;margin-top:22px;letter-spacing:-.01em;}
.price-unit{font-size:14px;color:var(--ink-soft);font-weight:500;margin-left:6px;}
.price-list{margin-top:24px;display:grid;gap:12px;flex:1;}
.price-list li{display:flex;gap:10px;font-size:15px;color:var(--ink-soft);line-height:1.7;}
.check{
  flex:0 0 auto;width:20px;height:20px;border-radius:999px;background:var(--primary-soft);
  color:var(--primary);display:flex;align-items:center;justify-content:center;
  font-size:11px;font-weight:800;margin-top:3px;
}
.price-card.featured .check{background:rgba(255,255,255,.2);color:#fff;}
.price-card .btn{margin-top:28px;}
.price-note{margin-top:20px;font-size:13px;color:#7C8AA0;text-align:center;line-height:1.8;}

/* ---------- FAQ ---------- */
.faq-wrap{max-width:800px;margin:0 auto;}
.faq-item{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius-sm);
  margin-bottom:12px;overflow:hidden;transition:border-color .18s ease,box-shadow .18s ease;
}
.faq-item:hover{border-color:#CBD9EE;}
.faq-item.is-open{border-color:#CBD9EE;box-shadow:var(--shadow-card);}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;
  background:transparent;border:0;padding:20px 24px;cursor:pointer;text-align:left;
  font-size:17px;font-weight:600;color:var(--ink);line-height:1.6;
}
.faq-q:hover{color:var(--primary);}
.faq-icon{
  flex:0 0 auto;width:24px;height:24px;border-radius:999px;background:var(--primary-soft);
  color:var(--primary);display:flex;align-items:center;justify-content:center;
  font-size:15px;font-weight:700;transition:transform .22s ease;
}
.faq-item.is-open .faq-icon{transform:rotate(180deg);}
.faq-a{max-height:0;overflow:hidden;transition:max-height .28s ease;}
.faq-a-inner{padding:0 24px 22px;font-size:15px;line-height:1.9;color:var(--ink-soft);}

/* ---------- CTA band ---------- */
.cta-band{
  background:linear-gradient(120deg,var(--primary) 0%,var(--primary-deep) 100%);
  border-radius:20px;padding:48px 32px;color:#fff;
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:28px;
  position:relative;overflow:hidden;
}
.cta-band::after{
  content:"";position:absolute;right:-60px;top:-60px;width:260px;height:260px;
  border:1px solid rgba(255,255,255,.16);border-radius:999px;
}
.cta-band::before{
  content:"";position:absolute;right:40px;bottom:-100px;width:200px;height:200px;
  border:1px solid rgba(255,255,255,.12);border-radius:999px;
}
.cta-band h2{color:#fff;font-size:clamp(22px,2.4vw,30px);font-weight:800;position:relative;}
.cta-band p{color:rgba(255,255,255,.82);margin-top:10px;font-size:15px;position:relative;max-width:520px;}
.cta-band .btn{position:relative;}

/* ---------- Footer ---------- */
.site-footer{background:#fff;border-top:1px solid var(--line);padding-top:56px;}
.footer-grid{display:grid;gap:36px;padding-bottom:44px;}
@media (min-width:768px){.footer-grid{grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:32px;}}
.footer-brand .brand{margin-bottom:16px;}
.footer-brand p{font-size:14px;color:var(--ink-soft);line-height:1.9;max-width:320px;}
.footer-social{display:flex;gap:10px;margin-top:18px;}
.footer-social a{
  width:36px;height:36px;border-radius:10px;border:1px solid var(--line);
  display:flex;align-items:center;justify-content:center;color:var(--ink-soft);
  transition:background .18s ease,color .18s ease,border-color .18s ease;
}
.footer-social a:hover{background:var(--primary-soft);color:var(--primary);border-color:#CBD9EE;}
.footer-col h4{font-size:14px;font-weight:700;letter-spacing:.06em;color:var(--ink);margin-bottom:16px;}
.footer-col li + li{margin-top:10px;}
.footer-col a,.footer-col span{font-size:14px;color:var(--ink-soft);line-height:1.8;}
.footer-col a:hover{color:var(--primary);}
.footer-bottom{
  border-top:1px solid var(--line);padding:20px 0 28px;
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:12px;
}
.footer-bottom p{font-size:13px;color:#7C8AA0;}
.footer-bottom .legal{display:flex;gap:18px;flex-wrap:wrap;}
.footer-bottom .legal a{font-size:13px;color:#7C8AA0;}
.footer-bottom .legal a:hover{color:var(--primary);}
.age-note{
  font-size:13px;color:#7C8AA0;line-height:1.8;border-left:3px solid var(--line);
  padding-left:12px;margin-top:14px;
}

/* ---------- Floating CTA ---------- */
.float-cta{
  position:fixed;right:24px;bottom:24px;z-index:70;
  display:inline-flex;align-items:center;gap:10px;
  background:var(--primary);color:#fff;border:0;border-radius:999px;
  padding:13px 22px;font-size:15px;font-weight:600;cursor:pointer;
  box-shadow:var(--shadow-float);
  opacity:0;transform:translateY(14px);pointer-events:none;
  transition:opacity .2s ease,transform .2s ease,background .18s ease;
}
.float-cta.is-visible{opacity:1;transform:translateY(0);pointer-events:auto;}
.float-cta:hover{background:var(--primary-deep);color:#fff;}
.float-cta .close{
  display:inline-flex;align-items:center;justify-content:center;
  width:20px;height:20px;border-radius:999px;background:rgba(255,255,255,.2);
  font-size:12px;line-height:1;
}
@media (max-width:767px){
  .float-cta{
    left:0;right:0;bottom:0;border-radius:0;width:100%;height:56px;
    justify-content:center;padding:0 16px;
  }
  .site-footer{padding-bottom:56px;}
}

/* ---------- Reveal ---------- */
.reveal{opacity:0;transform:translateY(12px);transition:opacity .5s ease,transform .5s ease;}
.reveal.is-visible{opacity:1;transform:none;}
@media (prefers-reduced-motion:reduce){
  .reveal{opacity:1;transform:none;transition:none;}
  html{scroll-behavior:auto;}
}

/* roulang page: article */
:root{
  --primary:#1E4B8F;
  --primary-deep:#163A70;
  --primary-soft:#E8EFF9;
  --primary-glow:rgba(30,75,143,.12);
  --accent:#E0862F;
  --accent-hover:#C9741F;
  --ink:#0E1C2E;
  --ink-soft:#45566E;
  --ink-mute:#8A98AB;
  --line:#E2E8F1;
  --bg:#FFFFFF;
  --bg-alt:#F6F9FD;
  --r-lg:16px;
  --r-md:12px;
  --r-sm:10px;
  --shadow-card:0 1px 2px rgba(14,28,46,.04), 0 8px 24px -12px rgba(14,28,46,.18);
  --shadow-hover:0 12px 32px -12px rgba(14,28,46,.26);
  --shadow-float:0 16px 48px -16px rgba(14,28,46,.30);
  --font-sans:"PingFang TC","Microsoft JhengHei","Noto Sans TC",system-ui,-apple-system,"Segoe UI",sans-serif;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:var(--font-sans);
  font-size:16px;
  line-height:1.8;
  color:var(--ink);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;height:auto;}
a{color:var(--primary);text-decoration:none;transition:color .18s ease,background-color .18s ease,border-color .18s ease,transform .18s ease,box-shadow .18s ease;}
a:hover{color:var(--primary-deep);}
button{font-family:inherit;cursor:pointer;}
input,textarea,select{font-family:inherit;font-size:14px;color:var(--ink);}
ul,ol{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4,p{margin:0;}
:focus-visible{outline:2px solid var(--primary);outline-offset:2px;border-radius:4px;}

.container{
  width:100%;
  max-width:1200px;
  margin:0 auto;
  padding-left:20px;
  padding-right:20px;
}

/* ============ Header / Nav ============ */
.site-header{
  position:sticky;
  top:0;
  z-index:60;
  background:#fff;
  border-bottom:1px solid var(--line);
  transition:box-shadow .2s ease;
}
.site-header.is-scrolled{box-shadow:0 6px 20px -14px rgba(14,28,46,.45);}
.nav-wrap{
  display:flex;
  align-items:center;
  gap:24px;
  height:68px;
}
.brand{
  display:inline-flex;
  align-items:center;
  gap:10px;
  color:var(--ink);
  flex-shrink:0;
}
.brand:hover{color:var(--ink);}
.brand-mark{
  width:30px;height:30px;
  display:inline-flex;align-items:center;justify-content:center;
  border-radius:9px;
  background:linear-gradient(140deg,var(--primary),var(--primary-deep));
  color:#fff;
  font-size:11px;
  letter-spacing:.5px;
  box-shadow:0 6px 14px -8px rgba(30,75,143,.9);
}
.brand-text{
  font-size:15px;
  font-weight:700;
  letter-spacing:.01em;
  white-space:nowrap;
}
.nav-links{
  display:flex;
  align-items:center;
  gap:26px;
  margin-left:8px;
}
.nav-link{
  position:relative;
  font-size:15px;
  letter-spacing:.02em;
  color:var(--ink-soft);
  padding:6px 0;
  white-space:nowrap;
}
.nav-link::after{
  content:"";
  position:absolute;
  left:0;right:0;bottom:0;
  height:2px;
  background:var(--primary);
  transform:scaleX(0);
  transform-origin:left;
  transition:transform .2s ease;
  border-radius:2px;
}
.nav-link:hover{color:var(--primary);}
.nav-link:hover::after{transform:scaleX(1);}
.nav-link.active{color:var(--primary);font-weight:600;}
.nav-link.active::after{transform:scaleX(1);}
.nav-tools{
  display:flex;
  align-items:center;
  gap:14px;
  margin-left:auto;
}
.search-box{
  display:flex;
  align-items:center;
  gap:8px;
  height:38px;
  padding:0 12px;
  border:1px solid var(--line);
  border-radius:var(--r-sm);
  background:#fff;
  color:var(--ink-mute);
  transition:border-color .18s ease,box-shadow .18s ease;
}
.search-box:focus-within{
  border-color:var(--primary);
  box-shadow:0 0 0 3px var(--primary-glow);
}
.search-box input{
  border:0;
  outline:none;
  width:150px;
  background:transparent;
  color:var(--ink);
  font-size:14px;
}
.search-box input::placeholder{color:var(--ink-mute);font-size:14px;}
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  font-size:15px;
  font-weight:600;
  line-height:1;
  padding:12px 22px;
  border-radius:999px;
  border:1px solid transparent;
  transition:transform .18s ease,box-shadow .18s ease,background-color .18s ease,color .18s ease,border-color .18s ease;
  white-space:nowrap;
}
.btn:hover{transform:translateY(-1px);}
.btn:active{transform:translateY(0);}
.btn-accent{
  background:var(--accent);
  color:#fff;
  box-shadow:0 8px 18px -10px rgba(224,134,47,.9);
}
.btn-accent:hover{background:var(--accent-hover);color:#fff;box-shadow:0 12px 24px -12px rgba(224,134,47,.95);}
.btn-primary{background:var(--primary);color:#fff;box-shadow:0 8px 18px -10px rgba(30,75,143,.9);}
.btn-primary:hover{background:var(--primary-deep);color:#fff;}
.btn-ghost{
  background:#fff;
  color:var(--primary);
  border-color:var(--primary);
}
.btn-ghost:hover{background:var(--primary-soft);color:var(--primary-deep);}
.btn-block{width:100%;}
.nav-cta{padding:11px 20px;font-size:14px;}
.nav-toggle{
  display:none;
  width:40px;height:40px;
  border:1px solid var(--line);
  border-radius:var(--r-sm);
  background:#fff;
  padding:0;
  align-items:center;
  justify-content:center;
  flex-direction:column;
  gap:4px;
}
.nav-toggle span{
  display:block;
  width:16px;height:2px;
  background:var(--ink-soft);
  border-radius:2px;
  transition:transform .2s ease,opacity .2s ease;
}
.nav-toggle.is-open span:nth-child(1){transform:translateY(6px) rotate(45deg);}
.nav-toggle.is-open span:nth-child(2){opacity:0;}
.nav-toggle.is-open span:nth-child(3){transform:translateY(-6px) rotate(-45deg);}

/* ============ Article head ============ */
.article-head{
  background:var(--bg-alt);
  border-bottom:1px solid var(--line);
  padding:34px 0 44px;
}
.breadcrumb{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:8px;
  font-size:13px;
  color:var(--ink-soft);
  margin-bottom:22px;
}
.breadcrumb a{color:var(--ink-soft);}
.breadcrumb a:hover{color:var(--primary);}
.breadcrumb .sep{color:#B8C4D6;}
.breadcrumb .current{color:var(--ink);font-weight:500;max-width:60ch;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;}
.badge{
  display:inline-flex;
  align-items:center;
  gap:6px;
  padding:5px 12px;
  border-radius:999px;
  font-size:12px;
  font-weight:600;
  letter-spacing:.04em;
  background:var(--primary-soft);
  color:var(--primary);
}
.article-title{
  font-size:clamp(26px,3.4vw,38px);
  font-weight:800;
  line-height:1.35;
  letter-spacing:-.01em;
  margin:16px 0 18px;
  max-width:20ch;
  max-width:900px;
}
.article-meta{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:8px;
  font-size:13px;
  color:var(--ink-soft);
}
.article-meta .dot{color:#B8C4D6;}
.article-cover{
  margin-top:28px;
  border-radius:var(--r-lg);
  overflow:hidden;
  box-shadow:var(--shadow-card);
  background:#DCE4EF;
  aspect-ratio:16/9;
}
.article-cover img{
  width:100%;
  height:100%;
  object-fit:cover;
}

/* ============ Article body ============ */
.article-section{padding:56px 0 64px;}
.article-body{
  max-width:760px;
  margin:0 auto;
  font-size:16px;
  line-height:1.9;
  color:#1B2B40;
}
.article-body > * + *{margin-top:20px;}
.article-body p{margin:0;font-size:16px;line-height:1.9;}
.article-body h2{
  font-size:22px;
  font-weight:700;
  line-height:1.5;
  color:var(--ink);
  padding-left:14px;
  position:relative;
  margin-top:40px;
  margin-bottom:16px;
}
.article-body h2::before{
  content:"";
  position:absolute;
  left:0;top:6px;bottom:6px;
  width:4px;
  border-radius:2px;
  background:var(--primary);
}
.article-body h3{
  font-size:18px;
  font-weight:700;
  color:var(--ink);
  margin-top:28px;
  margin-bottom:12px;
}
.article-body h4{
  font-size:16px;
  font-weight:700;
  color:var(--ink);
  margin-top:24px;
  margin-bottom:10px;
}
.article-body ul,.article-body ol{
  padding-left:0;
  margin:0;
  list-style:none;
}
.article-body ul li,.article-body ol li{
  position:relative;
  padding-left:20px;
  line-height:1.85;
  margin-bottom:10px;
  color:#1B2B40;
}
.article-body ul li::before{
  content:"";
  position:absolute;
  left:2px;top:11px;
  width:7px;height:7px;
  border-radius:50%;
  background:var(--primary);
}
.article-body ol{counter-reset:li;}
.article-body ol li{counter-increment:li;}
.article-body ol li::before{
  content:counter(li);
  position:absolute;
  left:0;top:2px;
  width:18px;height:18px;
  border-radius:50%;
  background:var(--primary-soft);
  color:var(--primary);
  font-size:11px;
  font-weight:700;
  line-height:18px;
  text-align:center;
}
.article-body blockquote{
  margin:26px 0;
  padding:18px 22px;
  background:var(--primary-soft);
  border-left:4px solid var(--primary);
  border-radius:0 var(--r-md) var(--r-md) 0;
  font-size:15px;
  line-height:1.9;
  color:#243B58;
}
.article-body blockquote p{font-size:15px;}
.article-body figure{margin:26px 0;}
.article-body img{
  border-radius:var(--r-md);
  margin:0 auto;
  box-shadow:var(--shadow-card);
}
.article-body figcaption{
  margin-top:10px;
  font-size:13px;
  color:var(--ink-soft);
  text-align:center;
}
.article-body table{
  width:100%;
  border-collapse:collapse;
  border:1px solid var(--line);
  border-radius:var(--r-md);
  overflow:hidden;
  font-size:14px;
  margin:24px 0;
}
.article-body thead th{
  background:var(--bg-alt);
  font-weight:700;
  color:var(--ink);
  text-align:left;
}
.article-body th,.article-body td{
  padding:11px 14px;
  border-bottom:1px solid var(--line);
  line-height:1.7;
}
.article-body tbody tr:nth-child(even){background:#FAFCFF;}
.article-body tbody tr:last-child td{border-bottom:0;}
.article-body code{
  font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;
  font-size:13px;
  background:#F1F5FA;
  padding:2px 6px;
  border-radius:6px;
  color:#26405F;
}
.article-body pre{
  background:#F1F5FA;
  padding:16px 18px;
  border-radius:var(--r-md);
  overflow-x:auto;
  font-size:13px;
  line-height:1.7;
  border:1px solid var(--line);
}
.article-body pre code{background:none;padding:0;}
.article-body hr{
  border:0;
  height:1px;
  background:var(--line);
  margin:36px 0;
}
.article-tags{
  max-width:760px;
  margin:40px auto 0;
  padding-top:26px;
  border-top:1px solid var(--line);
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:10px;
}
.article-tags .label{
  font-size:13px;
  color:var(--ink-soft);
  letter-spacing:.06em;
  margin-right:4px;
}
.tag{
  display:inline-flex;
  align-items:center;
  padding:6px 14px;
  border-radius:999px;
  border:1px solid var(--line);
  background:#fff;
  font-size:13px;
  color:var(--ink-soft);
}
.tag:hover{
  border-color:var(--primary);
  color:var(--primary);
  background:var(--primary-soft);
}
.empty-state{
  max-width:760px;
  margin:0 auto;
  text-align:center;
  padding:56px 24px;
  border:1px dashed var(--line);
  border-radius:var(--r-lg);
  background:#fff;
}
.empty-state svg{color:var(--ink-mute);margin:0 auto 16px;}
.empty-state h2{font-size:20px;font-weight:700;margin-bottom:10px;}
.empty-state p{font-size:15px;color:var(--ink-soft);margin-bottom:22px;}

/* ============ Related ============ */
.related{padding:8px 0 72px;}
.section-head{
  display:flex;
  align-items:flex-end;
  justify-content:space-between;
  gap:20px;
  margin-bottom:28px;
}
.section-title{
  font-size:clamp(22px,2.4vw,28px);
  font-weight:800;
  line-height:1.4;
  letter-spacing:-.01em;
}
.section-sub{
  font-size:14px;
  color:var(--ink-soft);
  margin-top:8px;
}
.text-link{
  font-size:14px;
  font-weight:600;
  color:var(--primary);
  display:inline-flex;
  align-items:center;
  gap:6px;
}
.text-link:hover{color:var(--primary-deep);gap:10px;}
.related-grid{
  display:grid;
  grid-template-columns:repeat(3,1fr);
  gap:24px;
}
.rel-card{
  display:flex;
  flex-direction:column;
  background:#fff;
  border:1px solid var(--line);
  border-radius:var(--r-lg);
  overflow:hidden;
  box-shadow:var(--shadow-card);
  transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
  color:inherit;
}
.rel-card:hover{
  transform:translateY(-4px);
  box-shadow:var(--shadow-hover);
  border-color:#D3DEEC;
  color:inherit;
}
.rel-thumb{
  aspect-ratio:16/9;
  overflow:hidden;
  background:#DCE4EF;
}
.rel-thumb img{
  width:100%;height:100%;
  object-fit:cover;
  transition:transform .6s ease;
}
.rel-card:hover .rel-thumb img{transform:scale(1.03);}
.rel-body{padding:18px 20px 22px;}
.rel-cat{
  font-size:12px;
  font-weight:600;
  letter-spacing:.06em;
  color:var(--primary);
  background:var(--primary-soft);
  padding:4px 10px;
  border-radius:999px;
  display:inline-block;
}
.rel-title{
  font-size:17px;
  font-weight:700;
  line-height:1.55;
  margin:12px 0 8px;
  color:var(--ink);
  display:-webkit-box;
  -webkit-line-clamp:2;
  -webkit-box-orient:vertical;
  overflow:hidden;
}
.rel-date{
  font-size:13px;
  color:var(--ink-soft);
}
.related-actions{
  display:flex;
  justify-content:center;
  margin-top:36px;
}

/* ============ CTA band ============ */
.cta-band{
  background:linear-gradient(120deg,var(--primary-deep),var(--primary) 62%);
  border-radius:20px;
  padding:44px 40px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:32px;
  position:relative;
  overflow:hidden;
  box-shadow:var(--shadow-float);
}
.cta-band::after{
  content:"";
  position:absolute;
  right:-60px;top:-70px;
  width:280px;height:280px;
  border-radius:50%;
  border:1px solid rgba(255,255,255,.16);
  pointer-events:none;
}
.cta-band::before{
  content:"";
  position:absolute;
  right:40px;bottom:-120px;
  width:220px;height:220px;
  border-radius:50%;
  border:1px solid rgba(255,255,255,.12);
  pointer-events:none;
}
.cta-copy h2{
  color:#fff;
  font-size:clamp(20px,2.4vw,26px);
  font-weight:800;
  line-height:1.45;
  margin-bottom:10px;
}
.cta-copy p{
  color:rgba(255,255,255,.82);
  font-size:15px;
  line-height:1.8;
  max-width:52ch;
}
.cta-band .btn-accent{position:relative;z-index:1;flex-shrink:0;}
.cta-wrap{padding:0 0 72px;}

/* ============ Footer ============ */
.site-footer{
  background:var(--bg-alt);
  border-top:1px solid var(--line);
  padding:56px 0 0;
  margin-top:0;
}
.footer-grid{
  display:grid;
  grid-template-columns:1.5fr 1fr 1fr 1.3fr;
  gap:40px;
  padding-bottom:40px;
}
.footer-brand .brand{margin-bottom:16px;}
.footer-brand p{
  font-size:14px;
  line-height:1.85;
  color:var(--ink-soft);
  max-width:32ch;
}
.footer-social{
  display:flex;
  gap:10px;
  margin-top:18px;
}
.footer-social a{
  width:34px;height:34px;
  display:inline-flex;
  align-items:center;
  justify-content:center;
  border-radius:50%;
  background:#fff;
  border:1px solid var(--line);
  color:var(--ink-soft);
}
.footer-social a:hover{
  color:var(--primary);
  border-color:var(--primary);
  background:var(--primary-soft);
}
.footer-col h4{
  font-size:14px;
  font-weight:700;
  color:var(--ink);
  margin-bottom:16px;
  letter-spacing:.04em;
}
.footer-col ul li{
  margin-bottom:10px;
  font-size:14px;
  line-height:1.8;
  color:var(--ink-soft);
}
.footer-col ul li a{color:var(--ink-soft);}
.footer-col ul li a:hover{color:var(--primary);}
.age-note{
  margin-top:16px;
  font-size:12px;
  line-height:1.8;
  color:var(--ink-mute);
  border-left:3px solid var(--accent);
  padding-left:10px;
}
.footer-bottom{
  border-top:1px solid var(--line);
  padding:20px 0 26px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  flex-wrap:wrap;
}
.footer-bottom p{font-size:13px;color:var(--ink-soft);}
.legal{
  display:flex;
  gap:20px;
  flex-wrap:wrap;
}
.legal a{font-size:13px;color:var(--ink-soft);}
.legal a:hover{color:var(--primary);}

/* ============ Responsive ============ */
@media (max-width:1023px){
  .nav-links{
    position:fixed;
    inset:68px 0 0 0;
    background:#fff;
    flex-direction:column;
    align-items:flex-start;
    gap:0;
    padding:12px 20px 32px;
    margin:0;
    display:none;
    overflow-y:auto;
    z-index:55;
  }
  .nav-links.is-open{display:flex;}
  .nav-links .nav-link{
    width:100%;
    font-size:17px;
    padding:16px 0;
    border-bottom:1px solid var(--line);
  }
  .nav-links .nav-link::after{display:none;}
  .nav-toggle{display:inline-flex;}
  .search-box{display:none;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
  .related-grid{grid-template-columns:repeat(2,1fr);}
  .cta-band{padding:36px 28px;}
}
@media (max-width:767px){
  .nav-wrap{height:60px;gap:12px;}
  .brand-text{font-size:13px;}
  .brand-mark{width:26px;height:26px;font-size:10px;border-radius:8px;}
  .nav-cta{padding:9px 14px;font-size:13px;}
  .article-head{padding:26px 0 32px;}
  .breadcrumb{font-size:12px;margin-bottom:16px;}
  .breadcrumb .current{white-space:normal;}
  .article-section{padding:38px 0 48px;}
  .article-body h2{font-size:20px;margin-top:32px;}
  .article-body h3{font-size:17px;}
  .related-grid{grid-template-columns:1fr;}
  .cta-band{flex-direction:column;align-items:flex-start;padding:30px 22px;}
  .cta-band .btn-accent{width:100%;}
  .footer-grid{grid-template-columns:1fr;gap:28px;padding-bottom:32px;}
  .footer-bottom{flex-direction:column;align-items:flex-start;}
  .section-head{flex-direction:column;align-items:flex-start;gap:10px;}
}
@media (max-width:519px){
  .container{padding-left:16px;padding-right:16px;}
  .article-title{font-size:24px;}
  .related-actions .btn{width:100%;}
}

/* roulang page: category1 */
:root{
    --primary:#1E4B8F;
    --primary-deep:#163A70;
    --primary-soft:#E8EFF9;
    --accent:#E0862F;
    --accent-hover:#C9741F;
    --ink:#0E1C2E;
    --ink-soft:#45566E;
    --ink-mute:#8A98AB;
    --line:#E2E8F1;
    --bg:#FFFFFF;
    --bg-alt:#F6F9FD;
    --radius-lg:16px;
    --radius-md:12px;
    --radius-sm:10px;
    --shadow-card:0 1px 2px rgba(14,28,46,.04),0 8px 24px -12px rgba(14,28,46,.18);
    --shadow-card-hover:0 12px 32px -12px rgba(14,28,46,.26);
    --shadow-float:0 16px 48px -16px rgba(14,28,46,.30);
    --font-sans:"PingFang TC","Microsoft JhengHei","Noto Sans TC",system-ui,-apple-system,"Segoe UI",sans-serif;
  }
  *,*::before,*::after{box-sizing:border-box}
  html{scroll-behavior:smooth}
  body{
    margin:0;
    font-family:var(--font-sans);
    background:var(--bg);
    color:var(--ink);
    font-size:16px;
    line-height:1.75;
    -webkit-font-smoothing:antialiased;
    text-rendering:optimizeLegibility;
  }
  img{display:block;max-width:100%;height:auto}
  a{color:var(--primary);text-decoration:none;transition:color .18s ease}
  a:hover{color:var(--primary-deep)}
  button{font-family:inherit}
  :focus-visible{outline:2px solid var(--primary);outline-offset:2px}
  .container{width:100%;max-width:1200px;margin:0 auto;padding-left:20px;padding-right:20px}
  @media (min-width:768px){.container{padding-left:32px;padding-right:32px}}

  /* ---------- Header ---------- */
  .site-header{
    position:sticky;top:0;z-index:60;background:#fff;
    border-bottom:1px solid var(--line);
    transition:box-shadow .2s ease;
  }
  .site-header.is-scrolled{box-shadow:0 8px 24px -18px rgba(14,28,46,.45)}
  .nav-wrap{display:flex;align-items:center;gap:22px;height:68px}
  .brand{display:inline-flex;align-items:center;gap:10px;color:var(--ink);font-weight:700;font-size:15px;letter-spacing:.01em;white-space:nowrap}
  .brand:hover{color:var(--primary)}
  .brand-mark{
    display:inline-flex;align-items:center;justify-content:center;
    width:28px;height:28px;border-radius:9px;background:var(--primary);color:#fff;font-size:11px;flex:0 0 auto;
  }
  .brand-text{line-height:1.2}
  .nav-links{display:flex;align-items:center;gap:26px;margin-left:6px}
  .nav-link{
    position:relative;color:var(--ink-soft);font-size:15px;letter-spacing:.02em;
    padding:6px 0;text-decoration:none;transition:color .18s ease;
  }
  .nav-link::after{
    content:"";position:absolute;left:0;right:0;bottom:-2px;height:2px;background:var(--primary);
    transform:scaleX(0);transform-origin:left;transition:transform .2s ease;
  }
  .nav-link:hover,.nav-link.active{color:var(--primary)}
  .nav-link:hover::after,.nav-link.active::after{transform:scaleX(1)}
  .nav-tools{margin-left:auto;display:flex;align-items:center;gap:14px}
  .search-box{
    display:flex;align-items:center;gap:8px;height:40px;padding:0 14px;
    background:#fff;border:1px solid var(--line);border-radius:999px;color:var(--ink-mute);
    transition:border-color .18s ease,box-shadow .18s ease,color .18s ease;
  }
  .search-box:focus-within{border-color:var(--primary);box-shadow:0 0 0 3px rgba(30,75,143,.12);color:var(--primary)}
  .search-box input{
    border:0;outline:0;background:transparent;width:150px;font-size:14px;color:var(--ink);
  }
  .search-box input::placeholder{color:var(--ink-mute);font-size:14px}
  .nav-toggle{
    display:none;width:44px;height:44px;padding:0;border:1px solid var(--line);border-radius:10px;
    background:#fff;cursor:pointer;flex-direction:column;align-items:center;justify-content:center;gap:5px;
  }
  .nav-toggle span{display:block;width:18px;height:2px;border-radius:2px;background:var(--ink);transition:transform .2s ease,opacity .2s ease}
  .nav-toggle.is-open span:nth-child(1){transform:translateY(7px) rotate(45deg)}
  .nav-toggle.is-open span:nth-child(2){opacity:0}
  .nav-toggle.is-open span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}

  /* ---------- Buttons ---------- */
  .btn{
    display:inline-flex;align-items:center;justify-content:center;gap:8px;
    height:44px;padding:0 22px;border-radius:999px;border:1px solid transparent;
    font-size:15px;font-weight:600;cursor:pointer;text-decoration:none;white-space:nowrap;
    transition:transform .18s ease,background-color .18s ease,box-shadow .18s ease,color .18s ease;
  }
  .btn:active{transform:translateY(0)}
  .btn-accent{background:var(--accent);color:#fff;box-shadow:0 10px 22px -14px rgba(224,134,47,.95)}
  .btn-accent:hover{background:var(--accent-hover);color:#fff;transform:translateY(-1px);box-shadow:0 14px 28px -14px rgba(224,134,47,1)}
  .btn-primary{background:var(--primary);color:#fff}
  .btn-primary:hover{background:var(--primary-deep);color:#fff;transform:translateY(-1px)}
  .btn-ghost{background:#fff;border-color:var(--primary);color:var(--primary)}
  .btn-ghost:hover{background:var(--primary-soft);color:var(--primary-deep);transform:translateY(-1px)}
  .btn-lg{height:50px;padding:0 28px;font-size:16px}

  /* ---------- Page hero ---------- */
  .page-hero{background:var(--bg-alt);border-bottom:1px solid var(--line);padding:34px 0 56px}
  .breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--ink-soft);margin-bottom:24px}
  .breadcrumb a{color:var(--ink-soft);text-decoration:none}
  .breadcrumb a:hover{color:var(--primary)}
  .breadcrumb .sep{color:var(--ink-mute)}
  .breadcrumb .current{color:var(--ink);font-weight:600}
  .hero-grid{display:grid;grid-template-columns:1.1fr .9fr;gap:48px;align-items:center}
  .hero-eyebrow{
    display:inline-flex;align-items:center;gap:8px;padding:5px 12px;border-radius:999px;
    background:#fff;border:1px solid var(--line);color:var(--primary);
    font-size:12px;font-weight:700;letter-spacing:.12em;margin-bottom:18px;
  }
  .page-hero h1{
    margin:0 0 16px;font-size:clamp(28px,3.6vw,42px);font-weight:800;line-height:1.25;color:var(--ink);letter-spacing:-.01em;
  }
  .hero-sub{margin:0 0 26px;font-size:17px;line-height:1.85;color:var(--ink-soft);max-width:560px}
  .hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:28px}
  .hero-metrics{display:flex;flex-wrap:wrap;align-items:center;gap:22px}
  .hero-metrics .metric{display:flex;flex-direction:column;gap:2px}
  .hero-metrics .metric b{font-size:18px;font-weight:800;color:var(--primary);line-height:1.2}
  .hero-metrics .metric span{font-size:13px;color:var(--ink-soft)}
  .hero-metrics .divider{width:1px;height:28px;background:var(--line)}
  .hero-visual{position:relative}
  .hero-visual img{
    width:100%;aspect-ratio:4/3;object-fit:cover;border-radius:var(--radius-lg);
    box-shadow:var(--shadow-card);border:1px solid var(--line);
  }
  .hero-float{
    position:absolute;left:-18px;bottom:-24px;background:#fff;border:1px solid var(--line);
    border-radius:var(--radius-lg);box-shadow:var(--shadow-float);padding:16px 18px;width:250px;
  }
  .hero-float .tagline{display:flex;align-items:center;gap:8px;font-size:12px;font-weight:700;color:var(--primary);letter-spacing:.1em;margin-bottom:8px}
  .hero-float p{margin:0 0 12px;font-size:14px;line-height:1.7;color:var(--ink-soft)}
  .hero-float .bar{height:6px;border-radius:999px;background:var(--line);overflow:hidden}
  .hero-float .bar i{display:block;height:100%;width:68%;background:var(--primary);border-radius:999px}

  /* ---------- Section shells ---------- */
  .section{padding:64px 0}
  @media (min-width:768px){.section{padding:88px 0}}
  .section-alt{background:var(--bg-alt);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
  .section-head{display:flex;flex-wrap:wrap;align-items:flex-end;justify-content:space-between;gap:18px;margin-bottom:36px}
  .section-head h2{margin:0;font-size:clamp(24px,2.6vw,34px);font-weight:800;line-height:1.3;color:var(--ink)}
  .section-head p{margin:10px 0 0;font-size:16px;color:var(--ink-soft);max-width:620px;line-height:1.8}
  .section-kicker{
    display:block;font-size:12px;font-weight:700;letter-spacing:.14em;color:var(--primary);margin-bottom:10px;
  }

  /* ---------- Filter ---------- */
  .filter-bar{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:34px}
  .chip{
    display:inline-flex;align-items:center;height:38px;padding:0 18px;border-radius:999px;
    border:1px solid var(--line);background:#fff;color:var(--ink-soft);font-size:14px;font-weight:500;
    cursor:pointer;transition:background-color .18s ease,color .18s ease,border-color .18s ease,transform .18s ease;
  }
  .chip:hover{border-color:var(--primary);color:var(--primary);transform:translateY(-1px)}
  .chip.is-active{background:var(--primary);border-color:var(--primary);color:#fff}
  .chip.is-active:hover{color:#fff}

  /* ---------- Template cards ---------- */
  .tpl-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px}
  .tpl-card{
    display:flex;flex-direction:column;background:#fff;border:1px solid var(--line);
    border-radius:var(--radius-lg);overflow:hidden;box-shadow:var(--shadow-card);
    color:var(--ink);text-decoration:none;
    transition:transform .25s ease,box-shadow .25s ease,border-color .25s ease;
  }
  .tpl-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-card-hover);border-color:#CBD9EC;color:var(--ink)}
  .tpl-thumb{position:relative;aspect-ratio:4/3;overflow:hidden;background:var(--bg-alt)}
  .tpl-thumb img{width:100%;height:100%;object-fit:cover;transition:transform 1.4s ease}
  .tpl-card:hover .tpl-thumb img{transform:scale(1.03)}
  .tpl-badge{
    position:absolute;left:14px;top:14px;display:inline-flex;align-items:center;
    padding:4px 10px;border-radius:999px;background:rgba(255,255,255,.94);color:var(--primary);
    font-size:12px;font-weight:700;letter-spacing:.04em;
  }
  .tpl-body{padding:20px;display:flex;flex-direction:column;gap:10px;flex:1}
  .tpl-kicker{font-size:12px;font-weight:700;letter-spacing:.12em;color:var(--accent)}
  .tpl-title{margin:0;font-size:18px;font-weight:700;line-height:1.5;color:var(--ink)}
  .tpl-desc{margin:0;font-size:15px;line-height:1.8;color:var(--ink-soft)}
  .tpl-foot{
    margin-top:auto;padding-top:14px;border-top:1px solid var(--line);
    display:flex;align-items:center;justify-content:space-between;font-size:14px;font-weight:600;color:var(--primary);
  }
  .tpl-foot .arrow{transition:transform .2s ease}
  .tpl-card:hover .tpl-foot .arrow{transform:translateX(4px)}

  /* ---------- Pagination ---------- */
  .pagination{display:flex;justify-content:center;align-items:center;gap:8px;margin-top:44px}
  .page-btn{
    display:inline-flex;align-items:center;justify-content:center;min-width:44px;height:44px;padding:0 14px;
    border-radius:var(--radius-sm);border:1px solid var(--line);background:#fff;color:var(--ink-soft);
    font-size:14px;font-weight:600;text-decoration:none;transition:all .18s ease;
  }
  .page-btn:hover{border-color:var(--primary);color:var(--primary);transform:translateY(-1px)}
  .page-btn.is-current{background:var(--primary);border-color:var(--primary);color:#fff}

  /* ---------- Tier strip ---------- */
  .tier-strip{
    display:grid;grid-template-columns:repeat(3,1fr);background:#fff;
    border:1px solid var(--line);border-radius:var(--radius-lg);overflow:hidden;box-shadow:var(--shadow-card);
  }
  .tier-item{padding:30px 26px;border-right:1px solid var(--line)}
  .tier-item:last-child{border-right:0}
  .tier-num{
    display:inline-flex;align-items:center;justify-content:center;width:34px;height:34px;border-radius:10px;
    background:var(--primary-soft);color:var(--primary);font-size:14px;font-weight:800;margin-bottom:14px;
  }
  .tier-item h3{margin:0 0 8px;font-size:18px;font-weight:700;color:var(--ink)}
  .tier-item p{margin:0;font-size:15px;line-height:1.8;color:var(--ink-soft)}

  /* ---------- FAQ ---------- */
  .faq-list{max-width:800px;margin:0 auto;display:flex;flex-direction:column;gap:14px}
  .faq-item{background:#fff;border:1px solid var(--line);border-radius:var(--radius-md);overflow:hidden;transition:box-shadow .2s ease,border-color .2s ease}
  .faq-item:hover{border-color:#CBD9EC}
  .faq-q{
    width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;
    padding:20px 26px;background:none;border:0;cursor:pointer;text-align:left;
    font-size:17px;font-weight:600;color:var(--ink);line-height:1.6;
  }
  .faq-icon{
    flex:0 0 auto;width:22px;height:22px;position:relative;color:var(--primary);
    transition:transform .25s ease;
  }
  .faq-icon::before,.faq-icon::after{
    content:"";position:absolute;left:50%;top:50%;background:currentColor;border-radius:2px;transform:translate(-50%,-50%);
  }
  .faq-icon::before{width:13px;height:2px}
  .faq-icon::after{width:2px;height:13px}
  .faq-item.is-open .faq-icon{transform:rotate(45deg)}
  .faq-a{max-height:0;overflow:hidden;transition:max-height .3s ease}
  .faq-a p{margin:0;padding:0 26px 22px;font-size:15px;line-height:1.9;color:var(--ink-soft)}

  /* ---------- CTA band ---------- */
  .cta-wrap{padding:0 0 72px}
  .cta-band{
    position:relative;overflow:hidden;background:var(--primary);border-radius:20px;
    padding:48px;display:flex;align-items:center;justify-content:space-between;gap:32px;color:#fff;
  }
  .cta-band::before{
    content:"";position:absolute;inset:0;
    background-image:repeating-linear-gradient(135deg,rgba(255,255,255,.06) 0 1px,transparent 1px 22px);
    pointer-events:none;
  }
  .cta-band h2{margin:0 0 10px;font-size:clamp(22px,2.4vw,30px);font-weight:800;line-height:1.35;color:#fff;position:relative}
  .cta-band p{margin:0;font-size:15px;line-height:1.8;color:rgba(255,255,255,.82);max-width:560px;position:relative}
  .cta-band .btn{position:relative}

  /* ---------- Footer ---------- */
  .site-footer{background:#fff;border-top:1px solid var(--line);padding:56px 0 0}
  .footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.3fr;gap:40px;padding-bottom:44px}
  .footer-brand .brand{margin-bottom:16px}
  .footer-brand p{margin:0 0 18px;font-size:14px;line-height:1.85;color:var(--ink-soft);max-width:320px}
  .footer-social{display:flex;gap:10px}
  .footer-social a{
    display:inline-flex;align-items:center;justify-content:center;width:36px;height:36px;
    border-radius:10px;border:1px solid var(--line);color:var(--ink-soft);transition:all .18s ease;
  }
  .footer-social a:hover{border-color:var(--primary);color:var(--primary);background:var(--primary-soft);transform:translateY(-1px)}
  .footer-col h4{margin:0 0 16px;font-size:14px;font-weight:700;letter-spacing:.08em;color:var(--ink)}
  .footer-col ul{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:10px}
  .footer-col li a,.footer-col li span{font-size:14px;color:var(--ink-soft);line-height:1.7}
  .footer-col li a:hover{color:var(--primary)}
  .age-note{margin:16px 0 0;font-size:13px;line-height:1.8;color:var(--ink-mute)}
  .footer-bottom{
    border-top:1px solid var(--line);padding:22px 0;display:flex;flex-wrap:wrap;
    align-items:center;justify-content:space-between;gap:14px;
  }
  .footer-bottom p{margin:0;font-size:14px;color:var(--ink-mute)}
  .legal{display:flex;flex-wrap:wrap;gap:20px}
  .legal a{font-size:14px;color:var(--ink-soft)}
  .legal a:hover{color:var(--primary)}

  /* ---------- Reveal ---------- */
  .reveal{opacity:0;transform:translateY(12px);transition:opacity .5s ease,transform .5s ease}
  .reveal.is-visible{opacity:1;transform:none}

  /* ---------- Responsive ---------- */
  @media (max-width:1023px){
    .nav-links{
      position:fixed;left:0;right:0;top:68px;bottom:0;z-index:70;
      display:flex;flex-direction:column;align-items:flex-start;gap:0;
      margin:0;padding:16px 20px 32px;background:#fff;overflow-y:auto;
      transform:translateY(-12px);opacity:0;pointer-events:none;
      transition:opacity .2s ease,transform .2s ease;
    }
    .nav-links.is-open{transform:translateY(0);opacity:1;pointer-events:auto}
    .nav-link{width:100%;padding:16px 0;font-size:18px;border-bottom:1px solid var(--line);color:var(--ink)}
    .nav-link::after{display:none}
    .nav-link.active{color:var(--primary)}
    .search-box{display:none}
    .nav-toggle{display:flex}
    .hero-grid{grid-template-columns:1fr;gap:32px}
    .hero-float{position:static;width:100%;margin-top:16px}
    .tpl-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
    .tier-strip{grid-template-columns:1fr}
    .tier-item{border-right:0;border-bottom:1px solid var(--line)}
    .tier-item:last-child{border-bottom:0}
    .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
    .cta-band{flex-direction:column;align-items:flex-start;padding:36px}
  }
  @media (max-width:767px){
    .tpl-grid{grid-template-columns:1fr}
    .section{padding:56px 0}
    .page-hero{padding:24px 0 44px}
    .hero-sub{font-size:16px}
    .footer-grid{grid-template-columns:1fr}
    .footer-bottom{flex-direction:column;align-items:flex-start}
    .cta-wrap{padding-bottom:56px}
    .brand-text{font-size:13px}
  }
  @media (max-width:520px){
    .nav-cta{display:none}
    .page-hero h1{font-size:27px}
    .hero-actions .btn{width:100%}
  }

/* roulang page: category2 */
:root{
    --primary:#1E4B8F;
    --primary-deep:#163A70;
    --primary-soft:#E8EFF9;
    --primary-glow:rgba(30,75,143,.12);
    --accent:#E0862F;
    --accent-hover:#C9741F;
    --ink:#0E1C2E;
    --ink-soft:#45566E;
    --line:#E2E8F1;
    --bg:#FFFFFF;
    --bg-alt:#F6F9FD;
    --radius-lg:16px;
    --radius-md:12px;
    --radius-sm:10px;
    --shadow-card:0 1px 2px rgba(14,28,46,.04), 0 8px 24px -12px rgba(14,28,46,.18);
    --shadow-card-hover:0 12px 32px -12px rgba(14,28,46,.26);
    --shadow-float:0 16px 48px -16px rgba(14,28,46,.30);
  }
  *,*::before,*::after{ box-sizing:border-box; }
  html{ -webkit-text-size-adjust:100%; scroll-behavior:smooth; }
  body{
    margin:0;
    font-family:"PingFang TC","Microsoft JhengHei","Noto Sans TC",system-ui,-apple-system,"Segoe UI",sans-serif;
    font-size:16px;
    line-height:1.8;
    color:var(--ink);
    background:var(--bg);
    -webkit-font-smoothing:antialiased;
  }
  a{ color:var(--primary); text-decoration:none; transition:color 180ms ease; }
  a:hover{ color:var(--primary-deep); }
  a:focus-visible,button:focus-visible,input:focus-visible{
    outline:2px solid var(--primary);
    outline-offset:2px;
    border-radius:6px;
  }
  img{ display:block; max-width:100%; height:auto; }
  button{ font-family:inherit; cursor:pointer; }
  .container{ width:100%; max-width:1200px; margin:0 auto; padding:0 20px; }
  @media (min-width:768px){ .container{ padding:0 32px; } }

  /* ---------- Header / Nav ---------- */
  .site-header{
    position:sticky; top:0; z-index:60;
    background:#fff;
    border-bottom:1px solid var(--line);
    transition:box-shadow 200ms ease;
  }
  .site-header.is-scrolled{ box-shadow:0 6px 20px -14px rgba(14,28,46,.35); }
  .nav-wrap{
    display:flex; align-items:center; justify-content:space-between; gap:18px;
    height:68px;
  }
  .brand{ display:inline-flex; align-items:center; gap:10px; color:var(--ink); }
  .brand:hover{ color:var(--primary); }
  .brand-mark{
    display:inline-flex; align-items:center; justify-content:center;
    width:30px; height:30px; border-radius:9px;
    background:var(--primary); color:#fff; font-size:12px;
    flex:0 0 auto;
  }
  .brand-text{ font-size:15px; font-weight:700; letter-spacing:.02em; white-space:nowrap; }
  .nav-links{ display:flex; align-items:center; gap:26px; }
  .nav-link{
    position:relative;
    font-size:15px; letter-spacing:.02em; color:var(--ink-soft);
    padding:6px 0;
  }
  .nav-link::after{
    content:""; position:absolute; left:0; right:0; bottom:0;
    height:2px; background:var(--primary);
    transform:scaleX(0); transform-origin:left; transition:transform 200ms ease;
  }
  .nav-link:hover{ color:var(--primary); }
  .nav-link:hover::after,.nav-link.active::after{ transform:scaleX(1); }
  .nav-link.active{ color:var(--primary); font-weight:600; }
  .nav-tools{ display:flex; align-items:center; gap:14px; }
  .search-box{
    display:flex; align-items:center; gap:8px;
    height:38px; padding:0 12px;
    border:1px solid var(--line); border-radius:999px;
    background:#fff; color:#8A98AB;
    transition:border-color 180ms ease, box-shadow 180ms ease;
  }
  .search-box:focus-within{ border-color:var(--primary); box-shadow:0 0 0 3px var(--primary-glow); }
  .search-box input{
    border:0; outline:none; background:transparent;
    font-size:14px; width:150px; color:var(--ink);
  }
  .search-box input::placeholder{ color:#8A98AB; font-size:14px; }
  .btn{
    display:inline-flex; align-items:center; justify-content:center; gap:8px;
    min-height:44px; padding:0 22px;
    border-radius:999px; border:1px solid transparent;
    font-size:15px; font-weight:600; letter-spacing:.02em;
    transition:transform 180ms ease, background-color 180ms ease, color 180ms ease, box-shadow 180ms ease, border-color 180ms ease;
  }
  .btn:active{ transform:translateY(0); }
  .btn-accent{
    background:var(--accent); color:#fff;
    box-shadow:0 8px 20px -14px rgba(224,134,47,.9);
  }
  .btn-accent:hover{ background:var(--accent-hover); color:#fff; transform:translateY(-1px); box-shadow:0 12px 26px -14px rgba(224,134,47,.95); }
  .btn-primary{ background:var(--primary); color:#fff; }
  .btn-primary:hover{ background:var(--primary-deep); color:#fff; transform:translateY(-1px); box-shadow:var(--shadow-card-hover); }
  .btn-ghost{
    background:#fff; color:var(--primary); border-color:var(--primary);
    border-radius:var(--radius-sm);
  }
  .btn-ghost:hover{ background:var(--primary-soft); color:var(--primary-deep); transform:translateY(-1px); }
  .nav-cta{ height:38px; min-height:38px; padding:0 18px; font-size:14px; }
  .nav-toggle{
    display:none; width:44px; height:44px;
    border:1px solid var(--line); border-radius:var(--radius-sm);
    background:#fff; padding:0; align-items:center; justify-content:center; flex-direction:column; gap:4px;
  }
  .nav-toggle span{ display:block; width:18px; height:2px; background:var(--ink); border-radius:2px; transition:transform 200ms ease, opacity 200ms ease; }
  .nav-toggle[aria-expanded="true"] span:nth-child(1){ transform:translateY(6px) rotate(45deg); }
  .nav-toggle[aria-expanded="true"] span:nth-child(2){ opacity:0; }
  .nav-toggle[aria-expanded="true"] span:nth-child(3){ transform:translateY(-6px) rotate(-45deg); }

  @media (max-width:1023px){
    .search-box{ display:none; }
    .nav-links{ gap:18px; }
  }
  @media (max-width:899px){
    .nav-wrap{ height:60px; }
    .brand-text{ font-size:13px; }
    .nav-links{
      position:fixed; inset:60px 0 0 0;
      display:flex; flex-direction:column; align-items:flex-start;
      gap:0; padding:16px 24px 120px;
      background:#fff; border-top:1px solid var(--line);
      transform:translateY(-8px); opacity:0; pointer-events:none;
      transition:opacity 200ms ease, transform 200ms ease;
      overflow-y:auto;
    }
    .nav-links.is-open{ opacity:1; transform:translateY(0); pointer-events:auto; }
    .nav-link{ width:100%; padding:16px 0; font-size:17px; border-bottom:1px solid var(--line); }
    .nav-link::after{ display:none; }
    .nav-toggle{ display:inline-flex; }
    .nav-cta{ display:none; }
  }

  /* ---------- Breadcrumb ---------- */
  .crumbs{
    display:flex; flex-wrap:wrap; align-items:center; gap:8px;
    font-size:13px; color:var(--ink-soft);
    padding:18px 0 0;
  }
  .crumbs a{ color:var(--ink-soft); }
  .crumbs a:hover{ color:var(--primary); }
  .crumbs .sep{ color:#A9B5C6; }
  .crumbs .current{ color:var(--primary); font-weight:600; }

  /* ---------- Hero ---------- */
  .hero{
    position:relative; overflow:hidden;
    background:var(--bg-alt);
    border-bottom:1px solid var(--line);
  }
  .hero-bg{
    position:absolute; inset:0;
    background-image:url('/assets/images/backpic/back-2.jpg');
    background-size:cover; background-position:center;
    opacity:.16;
  }
  .hero-inner{
    position:relative;
    display:grid; gap:36px;
    padding:36px 0 64px;
  }
  @media (min-width:1024px){
    .hero-inner{ grid-template-columns:1.15fr .85fr; align-items:center; padding:44px 0 80px; gap:56px; }
  }
  .hero-tag{
    display:inline-flex; align-items:center; gap:8px;
    padding:6px 14px; border-radius:999px;
    background:var(--primary-soft); color:var(--primary);
    font-size:12px; font-weight:600; letter-spacing:.12em;
    margin-bottom:18px;
  }
  .hero h1{
    font-size:clamp(28px,4.2vw,46px);
    font-weight:800; line-height:1.3; letter-spacing:-.01em;
    color:var(--ink); margin:0 0 18px;
  }
  .hero-sub{
    font-size:17px; line-height:1.9; color:var(--ink-soft);
    max-width:560px; margin:0 0 26px;
  }
  .hero-actions{ display:flex; flex-wrap:wrap; gap:14px; margin-bottom:26px; }
  .hero-actions .btn{ border-radius:var(--radius-sm); }
  .trust-row{
    display:flex; flex-wrap:wrap; align-items:center; gap:18px;
    font-size:13px; color:var(--ink-soft);
  }
  .trust-row .item{ display:flex; align-items:baseline; gap:6px; }
  .trust-row .num{ font-weight:700; color:var(--primary); font-size:16px; }
  .trust-divider{ width:1px; height:16px; background:var(--line); }
  .hero-visual{
    position:relative; border-radius:var(--radius-lg);
    overflow:hidden; box-shadow:var(--shadow-card);
    border:1px solid #fff;
    aspect-ratio:16/10;
  }
  .hero-visual img{ width:100%; height:100%; object-fit:cover; }
  .hero-visual::after{
    content:""; position:absolute; inset:0;
    background:linear-gradient(180deg, rgba(30,75,143,.10) 0%, rgba(14,28,46,.55) 100%);
  }
  .hero-badge{
    position:absolute; left:16px; top:16px; z-index:2;
    padding:5px 12px; border-radius:999px;
    background:rgba(255,255,255,.94); color:var(--primary);
    font-size:12px; font-weight:600; letter-spacing:.06em;
  }
  .hero-caption{
    position:absolute; left:16px; right:16px; bottom:16px; z-index:2;
    background:#fff; border-radius:var(--radius-md);
    padding:14px 16px; box-shadow:var(--shadow-card);
  }
  .hero-caption strong{ display:block; font-size:14px; color:var(--ink); margin-bottom:4px; }
  .hero-caption span{ display:block; font-size:13px; color:var(--ink-soft); }
  .hero-bar{ margin-top:10px; height:6px; border-radius:999px; background:var(--primary-soft); overflow:hidden; }
  .hero-bar i{ display:block; height:100%; width:62%; background:var(--primary); border-radius:999px; }

  /* ---------- Filter chips ---------- */
  .chip-row{
    display:flex; gap:10px; overflow-x:auto;
    padding:22px 0 0; scrollbar-width:none;
  }
  .chip-row::-webkit-scrollbar{ display:none; }
  .chip{
    flex:0 0 auto;
    display:inline-flex; align-items:center;
    padding:9px 18px; border-radius:999px;
    border:1px solid var(--line); background:#fff;
    font-size:14px; color:var(--ink-soft);
    transition:all 180ms ease;
  }
  .chip:hover{ border-color:var(--primary); color:var(--primary); }
  .chip.is-active{ background:var(--primary); border-color:var(--primary); color:#fff; font-weight:600; }

  /* ---------- Section base ---------- */
  .section{ padding:64px 0; }
  @media (min-width:768px){ .section{ padding:88px 0; } }
  .section--alt{ background:var(--bg-alt); }
  .section-head{ max-width:720px; margin-bottom:40px; }
  .eyebrow{
    display:inline-block; font-size:12px; font-weight:700;
    letter-spacing:.16em; color:var(--primary);
    margin-bottom:12px;
  }
  .section-title{
    font-size:clamp(23px,2.6vw,32px);
    font-weight:800; line-height:1.35; color:var(--ink);
    margin:0 0 14px;
  }
  .section-desc{ font-size:16px; line-height:1.95; color:var(--ink-soft); margin:0; }

  /* ---------- Flow rows (alternating) ---------- */
  .flow-list{ display:grid; gap:0; }
  .flow-row{
    display:grid; gap:24px;
    padding:36px 0;
    border-top:1px solid var(--line);
  }
  .flow-row:last-child{ border-bottom:1px solid var(--line); }
  @media (min-width:900px){
    .flow-row{ grid-template-columns:minmax(0,4fr) minmax(0,6fr); align-items:center; gap:48px; padding:44px 0; }
    .flow-row--reverse .flow-media{ order:2; }
    .flow-row--reverse .flow-body{ order:1; }
  }
  .flow-media{
    position:relative; border-radius:var(--radius-lg); overflow:hidden;
    box-shadow:var(--shadow-card); aspect-ratio:16/10;
  }
  .flow-media img{ width:100%; height:100%; object-fit:cover; transition:transform 1400ms ease; }
  .flow-row:hover .flow-media img{ transform:scale(1.03); }
  .flow-step-no{
    position:absolute; left:14px; top:14px;
    width:38px; height:38px; border-radius:11px;
    background:rgba(255,255,255,.94); color:var(--primary);
    display:flex; align-items:center; justify-content:center;
    font-size:14px; font-weight:800; letter-spacing:.04em;
    box-shadow:0 2px 10px -4px rgba(14,28,46,.4);
  }
  .flow-body h3{
    font-size:20px; font-weight:700; color:var(--ink);
    margin:0 0 12px; line-height:1.5;
  }
  .flow-body h3 span{ color:var(--primary); }
  .flow-body p{ font-size:15.5px; line-height:1.95; color:var(--ink-soft); margin:0 0 16px; }
  .flow-tags{ display:flex; flex-wrap:wrap; gap:8px; margin-bottom:16px; }
  .tag{
    display:inline-flex; align-items:center;
    padding:4px 11px; border-radius:999px;
    background:var(--primary-soft); color:var(--primary);
    font-size:12px; font-weight:600;
  }
  .tag--accent{ background:#FDF1E3; color:var(--accent-hover); }
  .flow-meta{
    display:grid; gap:8px;
    border-left:3px solid var(--accent);
    padding-left:14px;
    font-size:14px; color:var(--ink-soft);
  }
  .flow-meta div{ display:flex; gap:8px; }
  .flow-meta b{ color:var(--ink); font-weight:600; min-width:74px; }

  /* ---------- Metrics strip ---------- */
  .metrics{
    display:grid; gap:1px;
    background:var(--line);
    border:1px solid var(--line);
    border-radius:var(--radius-lg);
    overflow:hidden;
  }
  @media (min-width:768px){ .metrics{ grid-template-columns:repeat(3,1fr); } }
  .metric{
    background:#fff; padding:28px 24px;
    display:flex; flex-direction:column; gap:6px;
  }
  .metric .num{ font-size:36px; font-weight:800; color:var(--primary); line-height:1.1; letter-spacing:-.02em; }
  .metric .label{ font-size:15px; font-weight:600; color:var(--ink); }
  .metric .note{ font-size:13.5px; line-height:1.8; color:var(--ink-soft); }

  /* ---------- Card grids ---------- */
  .grid-3{ display:grid; gap:24px; }
  @media (min-width:768px){ .grid-3{ grid-template-columns:repeat(2,1fr); } }
  @media (min-width:1024px){ .grid-3{ grid-template-columns:repeat(3,1fr); } }
  .card{
    background:#fff; border:1px solid var(--line);
    border-radius:var(--radius-lg);
    padding:26px 24px;
    box-shadow:var(--shadow-card);
    transition:transform 200ms ease, box-shadow 200ms ease, border-color 200ms ease;
  }
  .card:hover{ transform:translateY(-4px); box-shadow:var(--shadow-card-hover); border-color:#D3DEEC; }
  .card-icon{
    width:42px; height:42px; border-radius:12px;
    display:flex; align-items:center; justify-content:center;
    background:var(--primary-soft); color:var(--primary);
    margin-bottom:16px; font-weight:800; font-size:15px;
  }
  .card h3{ font-size:18px; font-weight:700; color:var(--ink); margin:0 0 10px; line-height:1.55; }
  .card p{ font-size:15px; line-height:1.9; color:var(--ink-soft); margin:0 0 16px; }
  .card ul{ list-style:none; margin:0; padding:0; display:grid; gap:8px; }
  .card ul li{
    position:relative; padding-left:20px;
    font-size:14px; line-height:1.8; color:var(--ink-soft);
  }
  .card ul li::before{
    content:""; position:absolute; left:2px; top:9px;
    width:6px; height:6px; border-radius:50%; background:var(--accent);
  }

  /* ---------- Spec panel ---------- */
  .spec-wrap{ display:grid; gap:24px; }
  @media (min-width:900px){ .spec-wrap{ grid-template-columns:1fr 1fr; gap:32px; } }
  .spec-card{
    background:#fff; border:1px solid var(--line);
    border-radius:var(--radius-lg); padding:28px 26px;
    box-shadow:var(--shadow-card);
  }
  .spec-card h3{ font-size:18px; font-weight:700; margin:0 0 18px; color:var(--ink); display:flex; align-items:center; gap:10px; }
  .spec-card h3::before{
    content:""; width:4px; height:18px; border-radius:2px; background:var(--primary); display:inline-block;
  }
  .spec-list{ list-style:none; margin:0; padding:0; display:grid; gap:0; }
  .spec-list li{
    display:flex; justify-content:space-between; gap:14px;
    padding:13px 0;
    border-bottom:1px dashed var(--line);
    font-size:14.5px; line-height:1.75;
  }
  .spec-list li:last-child{ border-bottom:0; }
  .spec-list .k{ color:var(--ink-soft); flex:0 0 auto; }
  .spec-list .v{ color:var(--ink); font-weight:600; text-align:right; }

  /* ---------- FAQ ---------- */
  .faq-list{ max-width:800px; margin:0 auto; display:grid; gap:12px; }
  .faq-item{
    background:#fff; border:1px solid var(--line);
    border-radius:var(--radius-md);
    overflow:hidden;
    transition:box-shadow 200ms ease, border-color 200ms ease;
  }
  .faq-item.is-open{ border-color:#C9D8EC; box-shadow:var(--shadow-card); }
  .faq-q{
    width:100%; display:flex; align-items:center; justify-content:space-between; gap:16px;
    padding:20px 24px;
    background:transparent; border:0; text-align:left;
    font-size:17px; font-weight:600; color:var(--ink); line-height:1.6;
  }
  .faq-q:hover{ color:var(--primary); }
  .faq-icon{
    flex:0 0 auto; width:24px; height:24px; position:relative;
    transition:transform 220ms ease; color:var(--primary);
  }
  .faq-icon::before,.faq-icon::after{
    content:""; position:absolute; background:currentColor; border-radius:2px;
  }
  .faq-icon::before{ left:4px; right:4px; top:11px; height:2px; }
  .faq-icon::after{ top:4px; bottom:4px; left:11px; width:2px; transition:transform 220ms ease; }
  .faq-item.is-open .faq-icon{ transform:rotate(180deg); }
  .faq-item.is-open .faq-icon::after{ transform:scaleY(0); }
  .faq-a{
    max-height:0; overflow:hidden;
    transition:max-height 260ms ease;
  }
  .faq-a-inner{
    padding:0 24px 22px;
    font-size:15px; line-height:1.95; color:var(--ink-soft);
  }
  .faq-a-inner p{ margin:0 0 10px; }
  .faq-a-inner p:last-child{ margin-bottom:0; }

  /* ---------- CTA band ---------- */
  .cta-band{
    position:relative; overflow:hidden;
    background:linear-gradient(135deg,var(--primary-deep),var(--primary));
    border-radius:20px;
    padding:44px 28px;
    display:grid; gap:26px;
    box-shadow:var(--shadow-float);
  }
  @media (min-width:900px){
    .cta-band{ grid-template-columns:1.4fr .6fr; align-items:center; padding:56px 48px; gap:40px; }
  }
  .cta-band::after{
    content:""; position:absolute; right:-60px; top:-60px;
    width:260px; height:260px; border-radius:50%;
    border:1px solid rgba(255,255,255,.14);
  }
  .cta-band h2{
    font-size:clamp(22px,2.4vw,30px); font-weight:800; color:#fff;
    line-height:1.4; margin:0 0 12px;
  }
  .cta-band p{ color:rgba(255,255,255,.82); font-size:15.5px; line-height:1.9; margin:0; max-width:560px; }
  .cta-band .btn-accent{ width:100%; }
  @media (min-width:900px){ .cta-band .btn-accent{ width:auto; } }

  /* ---------- Reveal animation ---------- */
  .reveal{ opacity:0; transform:translateY(12px); transition:opacity 520ms ease, transform 520ms ease; }
  .reveal.is-visible{ opacity:1; transform:translateY(0); }

  /* ---------- Footer ---------- */
  .site-footer{
    background:#fff; border-top:1px solid var(--line);
    padding:56px 0 28px; margin-top:72px;
  }
  .footer-grid{ display:grid; gap:32px; }
  @media (min-width:768px){ .footer-grid{ grid-template-columns:1.4fr 1fr 1fr 1.2fr; gap:36px; } }
  .footer-brand p{
    font-size:14px; line-height:1.9; color:var(--ink-soft);
    margin:14px 0 18px; max-width:320px;
  }
  .footer-social{ display:flex; gap:10px; }
  .footer-social a{
    width:34px; height:34px; border-radius:50%;
    border:1px solid var(--line); color:var(--ink-soft);
    display:inline-flex; align-items:center; justify-content:center;
    transition:all 180ms ease;
  }
  .footer-social a:hover{ border-color:var(--primary); color:var(--primary); background:var(--primary-soft); }
  .footer-col h4{
    font-size:14px; font-weight:700; color:var(--ink);
    margin:0 0 14px; letter-spacing:.04em;
  }
  .footer-col ul{ list-style:none; margin:0; padding:0; display:grid; gap:10px; }
  .footer-col ul li{ font-size:14px; line-height:1.8; color:var(--ink-soft); }
  .footer-col ul li a{ color:var(--ink-soft); }
  .footer-col ul li a:hover{ color:var(--primary); }
  .age-note{
    font-size:12.5px; line-height:1.8; color:#7A8798;
    margin:14px 0 0; padding-top:12px; border-top:1px dashed var(--line);
  }
  .footer-bottom{
    display:flex; flex-wrap:wrap; align-items:center; justify-content:space-between; gap:14px;
    margin-top:36px; padding-top:22px; border-top:1px solid var(--line);
    font-size:13px; color:var(--ink-soft);
  }
  .footer-bottom p{ margin:0; }
  .footer-bottom .legal{ display:flex; flex-wrap:wrap; gap:18px; }
  .footer-bottom .legal a{ color:var(--ink-soft); }
  .footer-bottom .legal a:hover{ color:var(--primary); }
  @media (max-width:899px){ .nav-links .nav-cta{ display:flex; width:100%; margin-top:20px; } }

/* roulang page: category3 */
:root{
  --primary:#1E4B8F;
  --primary-deep:#163A70;
  --primary-soft:#E8EFF9;
  --accent:#E0862F;
  --accent-deep:#C9741F;
  --ink:#0E1C2E;
  --ink-soft:#45566E;
  --muted:#8A98AB;
  --line:#E2E8F1;
  --bg:#FFFFFF;
  --bg-alt:#F6F9FD;
  --r-card:16px;
  --r-sm:12px;
  --r-btn:10px;
  --shadow-card:0 1px 2px rgba(14,28,46,.04),0 8px 24px -12px rgba(14,28,46,.18);
  --shadow-hover:0 12px 32px -12px rgba(14,28,46,.26);
  --shadow-float:0 16px 48px -16px rgba(14,28,46,.30);
  --ease:180ms ease;
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  font-family:"PingFang TC","Microsoft JhengHei","Noto Sans TC",system-ui,-apple-system,"Segoe UI",sans-serif;
  color:var(--ink);
  background:var(--bg);
  line-height:1.8;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block}
a{color:var(--primary);text-decoration:none;transition:color var(--ease),background var(--ease),border-color var(--ease),transform var(--ease)}
a:hover{color:var(--primary-deep)}
h1,h2,h3,h4{margin:0;line-height:1.35;letter-spacing:.01em}
p{margin:0}
ul,ol{margin:0;padding:0;list-style:none}
button{font-family:inherit;cursor:pointer}
:focus-visible{outline:2px solid var(--primary);outline-offset:2px}
.container{width:100%;max-width:1200px;margin:0 auto;padding-left:20px;padding-right:20px}
@media (min-width:768px){.container{padding-left:32px;padding-right:32px}}

/* ---------- Header / Nav ---------- */
.site-header{
  position:sticky;top:0;z-index:120;background:#fff;
  border-bottom:1px solid var(--line);
  transition:box-shadow var(--ease);
}
.site-header.is-scrolled{box-shadow:0 6px 20px -14px rgba(14,28,46,.35)}
.nav-wrap{display:flex;align-items:center;justify-content:space-between;gap:18px;height:68px}
.brand{display:inline-flex;align-items:center;gap:10px;color:var(--ink);flex-shrink:0}
.brand:hover{color:var(--ink)}
.brand-mark{
  width:28px;height:28px;border-radius:9px;background:var(--primary);color:#fff;
  display:inline-flex;align-items:center;justify-content:center;font-size:11px;flex-shrink:0;
}
.brand-text{font-size:15px;font-weight:700;letter-spacing:.02em;white-space:nowrap}
.nav-links{display:flex;align-items:center;gap:26px}
.nav-link{
  position:relative;font-size:15px;letter-spacing:.02em;color:var(--ink-soft);
  padding:6px 0;font-weight:500;
}
.nav-link::after{
  content:"";position:absolute;left:0;right:0;bottom:0;height:2px;background:var(--primary);
  transform:scaleX(0);transform-origin:left;transition:transform var(--ease);
}
.nav-link:hover{color:var(--primary)}
.nav-link:hover::after,.nav-link.active::after{transform:scaleX(1)}
.nav-link.active{color:var(--primary);font-weight:700}
.nav-tools{display:flex;align-items:center;gap:12px}
.search-box{
  display:flex;align-items:center;gap:8px;background:#fff;border:1px solid var(--line);
  border-radius:10px;padding:0 12px;height:40px;color:var(--muted);
  transition:border-color var(--ease),box-shadow var(--ease);
}
.search-box input{
  border:0;outline:none;background:transparent;font-size:14px;color:var(--ink);width:150px;height:100%;
}
.search-box input::placeholder{color:var(--muted);font-size:14px}
.search-box:focus-within{border-color:var(--primary);box-shadow:0 0 0 3px rgba(30,75,143,.12)}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  font-size:15px;font-weight:600;border-radius:var(--r-btn);padding:11px 20px;
  border:1px solid transparent;transition:all var(--ease);white-space:nowrap;min-height:44px;
}
.btn-accent{background:var(--accent);color:#fff;border-radius:999px;padding:11px 24px}
.btn-accent:hover{background:var(--accent-deep);color:#fff;transform:translateY(-1px);box-shadow:var(--shadow-hover)}
.btn-accent:active{transform:translateY(0)}
.btn-ghost{background:#fff;color:var(--primary);border-color:var(--primary);border-radius:999px;padding:11px 24px}
.btn-ghost:hover{background:var(--primary-soft);color:var(--primary-deep);transform:translateY(-1px)}
.btn-ghost:active{transform:translateY(0)}
.nav-cta{display:inline-flex}
.nav-toggle{
  display:none;width:44px;height:44px;border:1px solid var(--line);border-radius:10px;
  background:#fff;flex-direction:column;align-items:center;justify-content:center;gap:4px;
}
.nav-toggle span{display:block;width:18px;height:2px;background:var(--ink);border-radius:2px;transition:all var(--ease)}
@media (max-width:1023px){
  .nav-links{
    position:fixed;inset:68px 0 0 0;background:#fff;flex-direction:column;align-items:flex-start;
    gap:0;padding:20px 20px 32px;transform:translateX(100%);transition:transform 240ms ease;
    overflow-y:auto;z-index:110;border-top:1px solid var(--line);
  }
  .nav-links.is-open{transform:translateX(0)}
  .nav-link{width:100%;padding:16px 4px;font-size:17px;border-bottom:1px solid var(--line)}
  .nav-link::after{display:none}
  .nav-link.active{color:var(--primary)}
  .nav-toggle{display:inline-flex}
  .nav-links .mobile-cta{margin-top:20px;width:100%}
  .search-box{display:none}
}
@media (max-width:767px){
  .nav-wrap{height:60px}
  .brand-text{font-size:13px}
  .site-header .nav-links{inset:60px 0 0 0}
  .nav-cta{padding:9px 16px;font-size:14px;min-height:40px}
}
@media (max-width:420px){
  .brand-text{max-width:150px;white-space:normal;line-height:1.25;font-size:12px}
  .nav-cta{padding:8px 12px;font-size:13px}
}

/* ---------- Page hero ---------- */
.page-hero{
  background:var(--bg-alt);
  border-bottom:1px solid var(--line);
  padding:36px 0 64px;
  position:relative;overflow:hidden;
}
.page-hero::after{
  content:"";position:absolute;right:-120px;top:-120px;width:380px;height:380px;border-radius:50%;
  background:rgba(30,75,143,.06);pointer-events:none;
}
.breadcrumb{
  display:flex;align-items:center;gap:8px;font-size:13px;color:var(--ink-soft);
  margin-bottom:26px;position:relative;z-index:1;flex-wrap:wrap;
}
.breadcrumb a{color:var(--ink-soft)}
.breadcrumb a:hover{color:var(--primary)}
.breadcrumb span[aria-current]{color:var(--primary);font-weight:600}
.hero-grid{display:grid;grid-template-columns:1fr;gap:40px;align-items:center;position:relative;z-index:1}
@media (min-width:1024px){.hero-grid{grid-template-columns:1.08fr .92fr;gap:56px}}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;font-size:12px;font-weight:700;letter-spacing:.12em;
  color:var(--primary);background:var(--primary-soft);border-radius:999px;padding:5px 14px;margin-bottom:18px;
}
.hero-copy h1{
  font-size:clamp(28px,4.2vw,48px);font-weight:800;line-height:1.28;letter-spacing:.005em;color:var(--ink);
}
.hero-sub{margin-top:18px;font-size:17px;line-height:1.85;color:var(--ink-soft);max-width:560px}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:28px}
.hero-metrics{display:flex;flex-wrap:wrap;gap:0;margin-top:34px;border-top:1px solid var(--line);padding-top:20px}
.hero-metrics li{
  padding-right:22px;margin-right:22px;border-right:1px solid var(--line);
  font-size:13px;color:var(--ink-soft);
}
.hero-metrics li:last-child{border-right:0;margin-right:0;padding-right:0}
.hero-metrics b{display:block;font-size:20px;font-weight:700;color:var(--primary);line-height:1.4}
.hero-visual{position:relative}
.hero-visual .frame{
  border-radius:var(--r-card);overflow:hidden;box-shadow:var(--shadow-float);position:relative;
  aspect-ratio:16/11;background:var(--primary-soft);
}
.hero-visual .frame img{width:100%;height:100%;object-fit:cover}
.hero-visual .frame::after{
  content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(30,75,143,.10),rgba(30,75,143,.34));
}
.hero-float{
  position:relative;margin:-56px 16px 0 0;margin-left:auto;max-width:300px;background:#fff;
  border-radius:var(--r-sm);box-shadow:var(--shadow-float);padding:16px 18px;border:1px solid var(--line);
}
.hero-float .row{display:flex;align-items:center;gap:10px}
.hero-float .dot{width:32px;height:32px;border-radius:50%;background:var(--primary-soft);color:var(--primary);display:flex;align-items:center;justify-content:center;font-size:12px;font-weight:700}
.hero-float h4{font-size:14px;font-weight:700}
.hero-float p{font-size:12px;color:var(--ink-soft);margin-top:2px}
.progress{height:6px;border-radius:999px;background:var(--primary-soft);margin-top:12px;overflow:hidden}
.progress i{display:block;height:100%;width:72%;background:var(--primary);border-radius:999px}
@media (max-width:767px){
  .page-hero{padding:24px 0 44px}
  .hero-float{margin:-36px auto 0;max-width:100%}
}

/* ---------- Section basics ---------- */
.section{padding:56px 0}
@media (min-width:768px){.section{padding:88px 0}}
.section-alt{background:var(--bg-alt)}
.section-head{max-width:720px;margin-bottom:36px}
.section-head h2{font-size:clamp(22px,2.6vw,32px);font-weight:800;color:var(--ink)}
.section-head p{margin-top:14px;font-size:16px;color:var(--ink-soft);line-height:1.9}
.section-head.center{margin-left:auto;margin-right:auto;text-align:center}
.kicker{font-size:12px;font-weight:700;letter-spacing:.14em;color:var(--primary);margin-bottom:10px;display:block}

/* ---------- Chips ---------- */
.chip-row{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:32px}
.chip{
  display:inline-flex;align-items:center;font-size:14px;font-weight:500;color:var(--ink-soft);
  background:#fff;border:1px solid var(--line);border-radius:999px;padding:8px 16px;
  transition:all var(--ease);
}
.chip:hover{color:var(--primary);border-color:var(--primary);transform:translateY(-1px)}
.chip.is-active{background:var(--primary);border-color:var(--primary);color:#fff;font-weight:600}

/* ---------- Waterfall cards ---------- */
.masonry{display:grid;grid-template-columns:1fr;gap:24px}
@media (min-width:768px){.masonry{grid-template-columns:1fr 1fr;gap:24px;align-items:start}}
.masonry-col{display:flex;flex-direction:column;gap:24px}
.figure-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-card);padding:22px;
  box-shadow:var(--shadow-card);transition:transform var(--ease),box-shadow var(--ease),border-color var(--ease);
}
.figure-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover);border-color:#D2DEEE}
.figure-card .who{display:flex;align-items:center;gap:12px}
.avatar{
  width:44px;height:44px;border-radius:50%;flex-shrink:0;display:flex;align-items:center;justify-content:center;
  font-size:14px;font-weight:700;color:#fff;background:var(--primary);letter-spacing:.02em;
}
.avatar.amber{background:var(--accent)}
.avatar.soft{background:var(--primary-soft);color:var(--primary)}
.who h3{font-size:18px;font-weight:700;color:var(--ink)}
.who .role{font-size:12px;color:var(--muted);letter-spacing:.06em;margin-top:2px}
.tag-row{display:flex;flex-wrap:wrap;gap:8px;margin-top:16px}
.tag{
  font-size:12px;font-weight:600;color:var(--primary);background:var(--primary-soft);
  border-radius:999px;padding:4px 11px;letter-spacing:.02em;
}
.tag.amber{background:#FCF0E2;color:var(--accent-deep)}
.figure-card .desc{margin-top:16px;font-size:15px;line-height:1.85;color:var(--ink-soft)}
.card-foot{
  display:flex;align-items:center;justify-content:space-between;gap:12px;margin-top:18px;
  padding-top:14px;border-top:1px solid var(--line);font-size:12px;color:var(--muted);
}
.card-foot .link{color:var(--primary);font-weight:600;font-size:13px}
.card-foot .link:hover{color:var(--primary-deep)}
.figure-card.tall .cover{
  border-radius:var(--r-sm);overflow:hidden;aspect-ratio:16/10;margin-bottom:18px;background:var(--primary-soft);
}
.figure-card.tall .cover img{width:100%;height:100%;object-fit:cover;transition:transform 1400ms ease}
.figure-card.tall:hover .cover img{transform:scale(1.03)}
.check-list{margin-top:16px;display:flex;flex-direction:column;gap:9px}
.check-list li{position:relative;padding-left:22px;font-size:14px;color:var(--ink-soft);line-height:1.75}
.check-list li::before{
  content:"";position:absolute;left:0;top:8px;width:10px;height:10px;border-radius:50%;
  background:var(--primary-soft);border:2px solid var(--primary);
}

/* ---------- Spec grid ---------- */
.spec-grid{display:grid;grid-template-columns:1fr;gap:20px}
@media (min-width:768px){.spec-grid{grid-template-columns:1fr 1fr;gap:24px}}
.spec-item{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-card);padding:24px;
  box-shadow:var(--shadow-card);transition:transform var(--ease),box-shadow var(--ease);
}
.spec-item:hover{transform:translateY(-3px);box-shadow:var(--shadow-hover)}
.spec-item .num{
  display:inline-flex;align-items:center;justify-content:center;width:34px;height:34px;border-radius:10px;
  background:var(--primary-soft);color:var(--primary);font-size:13px;font-weight:700;margin-bottom:14px;
}
.spec-item h3{font-size:18px;font-weight:700;color:var(--ink)}
.spec-item p{margin-top:10px;font-size:15px;line-height:1.85;color:var(--ink-soft)}
.spec-item .mini{margin-top:14px;font-size:13px;color:var(--muted)}

/* ---------- Steps ---------- */
.steps{display:grid;grid-template-columns:1fr;gap:18px}
@media (min-width:768px){.steps{grid-template-columns:repeat(2,1fr)}}
@media (min-width:1024px){.steps{grid-template-columns:repeat(4,1fr)}}
.step{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-card);padding:22px;
  position:relative;transition:transform var(--ease),box-shadow var(--ease);
}
.step:hover{transform:translateY(-3px);box-shadow:var(--shadow-hover)}
.step .idx{
  font-size:13px;font-weight:700;color:var(--accent);letter-spacing:.08em;
}
.step h3{margin-top:10px;font-size:17px;font-weight:700}
.step p{margin-top:8px;font-size:14px;line-height:1.8;color:var(--ink-soft)}

/* ---------- Split rows ---------- */
.split-list{display:flex;flex-direction:column;gap:0;border-top:1px solid var(--line)}
.split-row{
  display:grid;grid-template-columns:1fr;gap:22px;padding:28px 0;border-bottom:1px solid var(--line);
  align-items:center;
}
@media (min-width:768px){.split-row{grid-template-columns:.9fr 1.1fr;gap:36px;padding:34px 0}}
.split-row .thumb{
  border-radius:var(--r-card);overflow:hidden;aspect-ratio:16/10;background:var(--primary-soft);
  box-shadow:var(--shadow-card);
}
.split-row .thumb img{width:100%;height:100%;object-fit:cover}
.split-row h3{font-size:20px;font-weight:700;color:var(--ink)}
.split-row p{margin-top:10px;font-size:15px;line-height:1.85;color:var(--ink-soft)}
.split-row .meta{margin-top:14px;display:flex;flex-wrap:wrap;gap:8px}

/* ---------- FAQ ---------- */
.faq-wrap{max-width:820px;margin:0 auto}
.faq-item{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-sm);margin-bottom:12px;
  transition:border-color var(--ease),box-shadow var(--ease);
}
.faq-item:hover{border-color:#CBD9EA}
.faq-item.open{box-shadow:var(--shadow-card);border-color:#CBD9EA}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;text-align:left;
  background:transparent;border:0;padding:18px 24px;font-size:17px;font-weight:600;color:var(--ink);
  border-radius:var(--r-sm);
}
.faq-icon{position:relative;width:16px;height:16px;flex-shrink:0;transition:transform 240ms ease}
.faq-icon::before,.faq-icon::after{
  content:"";position:absolute;background:var(--primary);border-radius:2px;
}
.faq-icon::before{left:0;top:7px;width:16px;height:2px}
.faq-icon::after{left:7px;top:0;width:2px;height:16px;transition:opacity 240ms ease,transform 240ms ease}
.faq-item.open .faq-icon{transform:rotate(180deg)}
.faq-item.open .faq-icon::after{opacity:0;transform:scaleY(0)}
.faq-a{max-height:0;overflow:hidden;opacity:0;transition:max-height 300ms ease,opacity 240ms ease}
.faq-item.open .faq-a{max-height:420px;opacity:1}
.faq-a p{padding:0 24px 20px;font-size:15px;line-height:1.9;color:var(--ink-soft)}

/* ---------- CTA band ---------- */
.cta-band{
  background:var(--primary);color:#fff;border-radius:20px;padding:44px 28px;
  display:grid;grid-template-columns:1fr;gap:26px;position:relative;overflow:hidden;
}
@media (min-width:768px){.cta-band{padding:52px 48px;grid-template-columns:1.3fr .7fr;align-items:center;gap:40px}}
.cta-band::after{
  content:"";position:absolute;inset:0;
  background-image:linear-gradient(90deg,rgba(255,255,255,.06) 1px,transparent 1px);
  background-size:56px 56px;pointer-events:none;opacity:.5;
}
.cta-band h2{font-size:clamp(22px,2.6vw,30px);font-weight:800;position:relative;z-index:1}
.cta-band p{margin-top:12px;font-size:15px;line-height:1.85;color:rgba(255,255,255,.82);position:relative;z-index:1}
.cta-actions{display:flex;flex-wrap:wrap;gap:12px;position:relative;z-index:1}
.cta-actions .btn-accent:hover{box-shadow:0 12px 32px -12px rgba(0,0,0,.45)}

/* ---------- Footer ---------- */
.site-footer{background:#fff;border-top:1px solid var(--line);padding:56px 0 0;margin-top:0}
.footer-grid{display:grid;grid-template-columns:1fr;gap:36px;padding-bottom:40px}
@media (min-width:768px){.footer-grid{grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:32px}}
.footer-brand p{margin-top:16px;font-size:14px;line-height:1.85;color:var(--ink-soft);max-width:320px}
.footer-social{display:flex;gap:10px;margin-top:18px}
.footer-social a{
  width:36px;height:36px;border-radius:10px;border:1px solid var(--line);
  display:inline-flex;align-items:center;justify-content:center;color:var(--ink-soft);
}
.footer-social a:hover{color:var(--primary);border-color:var(--primary);background:var(--primary-soft)}
.footer-col h4{font-size:14px;font-weight:700;color:var(--ink);margin-bottom:16px;letter-spacing:.04em}
.footer-col ul{display:flex;flex-direction:column;gap:10px}
.footer-col li a{font-size:14px;color:var(--ink-soft)}
.footer-col li a:hover{color:var(--primary)}
.footer-col li span{font-size:14px;color:var(--ink-soft);line-height:1.8}
.age-note{
  margin-top:16px;font-size:12px;line-height:1.8;color:var(--muted);
  background:var(--bg-alt);border-left:3px solid var(--accent);border-radius:6px;padding:12px 14px;
}
.footer-bottom{
  border-top:1px solid var(--line);padding:20px 0;display:flex;flex-wrap:wrap;gap:12px;
  align-items:center;justify-content:space-between;
}
.footer-bottom p{font-size:13px;color:var(--muted)}
.legal{display:flex;flex-wrap:wrap;gap:18px}
.legal a{font-size:13px;color:var(--ink-soft)}
.legal a:hover{color:var(--primary)}

/* ---------- Reveal ---------- */
.reveal{opacity:0;transform:translateY(12px);transition:opacity 520ms ease,transform 520ms ease}
.reveal.is-in{opacity:1;transform:none}
@media (prefers-reduced-motion:reduce){
  .reveal{opacity:1;transform:none;transition:none}
  html{scroll-behavior:auto}
}

/* roulang page: category4 */
:root{
    --primary:#1E4B8F;
    --primary-deep:#163A70;
    --primary-soft:#E8EFF9;
    --primary-glow:rgba(30,75,143,.12);
    --accent:#E0862F;
    --accent-deep:#C9741F;
    --ink:#0E1C2E;
    --ink-soft:#45566E;
    --ink-mute:#8A98AB;
    --line:#E2E8F1;
    --bg:#FFFFFF;
    --bg-alt:#F6F9FD;
    --shadow-card:0 1px 2px rgba(14,28,46,.04), 0 8px 24px -12px rgba(14,28,46,.18);
    --shadow-card-hover:0 12px 32px -12px rgba(14,28,46,.26);
    --shadow-float:0 16px 48px -16px rgba(14,28,46,.30);
    --r-card:16px;
    --r-sm:12px;
    --r-btn:10px;
  }
  *,*::before,*::after{box-sizing:border-box;}
  html{scroll-behavior:smooth;}
  body{
    margin:0;
    font-family:"PingFang TC","Microsoft JhengHei","Noto Sans TC",system-ui,-apple-system,"Segoe UI",sans-serif;
    color:var(--ink);
    background:var(--bg);
    line-height:1.8;
    -webkit-font-smoothing:antialiased;
  }
  img{max-width:100%;display:block;}
  a{color:var(--primary);text-decoration:none;transition:color .18s ease, background-color .18s ease, border-color .18s ease, transform .18s ease;}
  a:hover{color:var(--primary-deep);}
  button{font-family:inherit;}
  a:focus-visible,button:focus-visible,input:focus-visible,summary:focus-visible{
    outline:2px solid var(--primary);outline-offset:2px;border-radius:6px;
  }
  .container{width:100%;max-width:1200px;margin:0 auto;padding-left:20px;padding-right:20px;}
  @media (min-width:768px){ .container{padding-left:32px;padding-right:32px;} }

  /* ============ Header / Nav ============ */
  .site-header{
    position:sticky;top:0;z-index:100;background:#fff;
    border-bottom:1px solid var(--line);
    transition:box-shadow .2s ease;
  }
  .site-header.is-scrolled{box-shadow:0 4px 20px -12px rgba(14,28,46,.28);}
  .nav-wrap{display:flex;align-items:center;gap:24px;height:68px;}
  .brand{display:inline-flex;align-items:center;gap:10px;color:var(--ink);flex-shrink:0;}
  .brand:hover{color:var(--ink);}
  .brand-mark{
    width:30px;height:30px;border-radius:9px;display:inline-flex;align-items:center;justify-content:center;
    background:var(--primary);color:#fff;font-size:12px;line-height:1;
    box-shadow:0 4px 12px -6px rgba(30,75,143,.7);
  }
  .brand-text{font-size:15px;font-weight:700;letter-spacing:.01em;white-space:nowrap;}
  .nav-links{display:flex;align-items:center;gap:26px;margin-left:8px;}
  .nav-link{
    position:relative;font-size:15px;letter-spacing:.02em;color:var(--ink-soft);
    padding:8px 0;font-weight:500;
  }
  .nav-link::after{
    content:"";position:absolute;left:0;right:0;bottom:0;height:2px;background:var(--primary);
    transform:scaleX(0);transform-origin:left;transition:transform .22s ease;
  }
  .nav-link:hover{color:var(--primary);}
  .nav-link:hover::after,.nav-link.active::after{transform:scaleX(1);}
  .nav-link.active{color:var(--primary);font-weight:700;}
  .nav-tools{display:flex;align-items:center;gap:14px;margin-left:auto;}
  .search-box{
    display:flex;align-items:center;gap:8px;background:#fff;
    border:1px solid var(--line);border-radius:999px;padding:0 14px;height:38px;
    color:var(--ink-mute);transition:border-color .18s ease, box-shadow .18s ease;
  }
  .search-box input{
    border:0;outline:0;background:transparent;font-size:14px;color:var(--ink);width:150px;
  }
  .search-box input::placeholder{color:var(--ink-mute);font-size:14px;}
  .search-box:focus-within{border-color:var(--primary);box-shadow:0 0 0 3px var(--primary-glow);}
  .btn{
    display:inline-flex;align-items:center;justify-content:center;gap:8px;
    font-size:15px;font-weight:600;letter-spacing:.02em;
    border-radius:999px;padding:10px 22px;min-height:44px;
    border:1px solid transparent;cursor:pointer;
    transition:background-color .18s ease, color .18s ease, transform .18s ease, box-shadow .18s ease, border-color .18s ease;
  }
  .btn:active{transform:translateY(0);}
  .btn-accent{background:var(--accent);color:#fff;box-shadow:0 8px 20px -12px rgba(224,134,47,.9);}
  .btn-accent:hover{background:var(--accent-deep);color:#fff;transform:translateY(-1px);box-shadow:0 12px 26px -12px rgba(201,116,31,.9);}
  .btn-primary{background:var(--primary);color:#fff;box-shadow:0 8px 20px -12px rgba(30,75,143,.9);}
  .btn-primary:hover{background:var(--primary-deep);color:#fff;transform:translateY(-1px);}
  .btn-outline{background:#fff;color:var(--primary);border-color:var(--primary);}
  .btn-outline:hover{background:var(--primary-soft);color:var(--primary-deep);transform:translateY(-1px);}
  .nav-cta{padding:10px 20px;font-size:14px;}
  .nav-toggle{
    display:none;width:44px;height:44px;border-radius:10px;border:1px solid var(--line);
    background:#fff;flex-direction:column;align-items:center;justify-content:center;gap:5px;cursor:pointer;
  }
  .nav-toggle span{display:block;width:18px;height:2px;background:var(--ink-soft);border-radius:2px;transition:transform .2s ease, opacity .2s ease;}
  .nav-toggle[aria-expanded="true"] span:nth-child(1){transform:translateY(7px) rotate(45deg);}
  .nav-toggle[aria-expanded="true"] span:nth-child(2){opacity:0;}
  .nav-toggle[aria-expanded="true"] span:nth-child(3){transform:translateY(-7px) rotate(-45deg);}

  @media (max-width:1023px){
    .nav-wrap{height:60px;gap:12px;}
    .brand-text{font-size:13px;}
    .search-box{display:none;}
    .nav-toggle{display:flex;}
    .nav-links{
      position:fixed;left:0;right:0;top:60px;bottom:0;background:#fff;
      flex-direction:column;align-items:flex-start;gap:0;
      padding:16px 20px 120px;margin:0;overflow-y:auto;
      display:none;border-top:1px solid var(--line);z-index:95;
    }
    .nav-links.open{display:flex;}
    .nav-links .nav-link{
      width:100%;font-size:18px;padding:16px 4px;border-bottom:1px solid var(--line);color:var(--ink);
    }
    .nav-links .nav-link::after{display:none;}
    .nav-links .nav-link.active{color:var(--primary);}
  }

  /* ============ Hero ============ */
  .cat-hero{
    position:relative;background:var(--bg-alt);
    border-bottom:1px solid var(--line);
    overflow:hidden;
  }
  .cat-hero::before{
    content:"";position:absolute;inset:0;
    background-image:url('/assets/images/backpic/back-2.jpg');
    background-size:cover;background-position:center;
    opacity:.14;
  }
  .cat-hero-inner{position:relative;padding:44px 0 52px;}
  .breadcrumb{
    display:flex;flex-wrap:wrap;align-items:center;gap:8px;
    font-size:13px;color:var(--ink-soft);margin-bottom:22px;
  }
  .breadcrumb a{color:var(--ink-soft);}
  .breadcrumb a:hover{color:var(--primary);}
  .breadcrumb .sep{color:var(--ink-mute);}
  .hero-grid{display:grid;grid-template-columns:1fr;gap:32px;align-items:center;}
  .badge{
    display:inline-flex;align-items:center;gap:6px;
    background:var(--primary-soft);color:var(--primary);
    border-radius:999px;padding:5px 12px;font-size:12px;font-weight:600;letter-spacing:.06em;
  }
  .cat-hero h1{
    font-size:clamp(28px,4vw,44px);font-weight:800;line-height:1.28;
    margin:16px 0 14px;letter-spacing:-.01em;color:var(--ink);
  }
  .cat-hero p.lead{
    font-size:16px;color:var(--ink-soft);max-width:620px;margin:0 0 24px;line-height:1.85;
  }
  .hero-actions{display:flex;flex-wrap:wrap;gap:12px;}
  .hero-thumb{
    border-radius:var(--r-card);overflow:hidden;box-shadow:var(--shadow-card);
    border:1px solid rgba(226,232,241,.9);background:#fff;
  }
  .hero-thumb img{width:100%;aspect-ratio:4/3;object-fit:cover;}
  .hero-thumb figcaption{
    font-size:13px;color:var(--ink-soft);padding:12px 16px;background:#fff;
    border-top:1px solid var(--line);
  }
  @media (min-width:1024px){
    .cat-hero-inner{padding:56px 0 64px;}
    .hero-grid{grid-template-columns:1fr 380px;gap:56px;}
  }

  /* ============ 快速跳转胶囊 ============ */
  .chip-bar{border-bottom:1px solid var(--line);background:#fff;}
  .chip-row{
    display:flex;gap:10px;overflow-x:auto;padding:16px 0;
    scrollbar-width:none;
  }
  .chip-row::-webkit-scrollbar{display:none;}
  .chip{
    flex-shrink:0;display:inline-flex;align-items:center;gap:6px;
    border-radius:999px;padding:9px 18px;font-size:14px;font-weight:600;
    border:1px solid var(--line);background:#fff;color:var(--ink-soft);white-space:nowrap;
  }
  .chip:hover{border-color:var(--primary);color:var(--primary);background:var(--primary-soft);}
  .chip.is-active{background:var(--primary);border-color:var(--primary);color:#fff;}
  .chip.is-active:hover{background:var(--primary-deep);color:#fff;}

  /* ============ 文档区 ============ */
  .doc-section{padding:56px 0;}
  @media (min-width:768px){ .doc-section{padding:80px 0;} }
  .doc-layout{display:grid;grid-template-columns:1fr;gap:36px;}
  @media (min-width:1024px){
    .doc-layout{grid-template-columns:240px minmax(0,1fr);gap:56px;}
  }
  .doc-toc{display:none;}
  @media (min-width:1024px){
    .doc-toc{display:block;position:sticky;top:96px;align-self:start;}
  }
  .doc-toc h2{
    font-size:12px;letter-spacing:.16em;color:var(--ink-mute);font-weight:700;
    margin:0 0 16px;text-transform:uppercase;
  }
  .doc-toc ul{list-style:none;margin:0;padding:0;border-left:1px solid var(--line);}
  .doc-toc li{margin:0;}
  .toc-link{
    display:block;font-size:14px;color:var(--ink-soft);padding:9px 0 9px 16px;
    border-left:2px solid transparent;margin-left:-1px;line-height:1.5;
  }
  .toc-link:hover{color:var(--primary);border-left-color:rgba(30,75,143,.35);}
  .toc-link.is-current{color:var(--primary);font-weight:700;border-left-color:var(--primary);}
  .doc-main{max-width:760px;}
  .section-label{
    font-size:12px;letter-spacing:.14em;color:var(--accent);font-weight:700;
    text-transform:uppercase;margin:0 0 10px;
  }
  .doc-main h2{
    font-size:clamp(22px,2.4vw,30px);font-weight:800;line-height:1.4;margin:0 0 14px;
  }
  .doc-main > p{font-size:16px;color:var(--ink-soft);margin:0 0 28px;line-height:1.9;}

  .accordion-item{
    background:#fff;border:1px solid var(--line);border-radius:var(--r-card);
    margin-bottom:14px;box-shadow:var(--shadow-card);overflow:hidden;
    transition:box-shadow .2s ease, border-color .2s ease;
  }
  .accordion-item:hover{box-shadow:var(--shadow-card-hover);}
  .accordion-item.is-open{border-color:rgba(30,75,143,.35);}
  .acc-trigger{
    width:100%;display:flex;align-items:flex-start;gap:16px;
    background:transparent;border:0;cursor:pointer;text-align:left;
    padding:20px 22px;color:var(--ink);
  }
  .acc-index{
    flex-shrink:0;width:32px;height:32px;border-radius:9px;background:var(--primary-soft);
    color:var(--primary);font-size:13px;font-weight:700;display:inline-flex;
    align-items:center;justify-content:center;letter-spacing:.02em;
  }
  .acc-title{flex:1;font-size:17px;font-weight:700;line-height:1.55;}
  .acc-icon{
    flex-shrink:0;width:22px;height:22px;position:relative;margin-top:4px;color:var(--primary);
    transition:transform .22s ease;
  }
  .acc-icon::before,.acc-icon::after{
    content:"";position:absolute;background:currentColor;border-radius:2px;
  }
  .acc-icon::before{left:2px;right:2px;top:10px;height:2px;}
  .acc-icon::after{top:2px;bottom:2px;left:10px;width:2px;transition:transform .22s ease, opacity .22s ease;}
  .accordion-item.is-open .acc-icon{transform:rotate(180deg);}
  .accordion-item.is-open .acc-icon::after{opacity:0;transform:scaleY(0);}
  .acc-panel{
    max-height:0;overflow:hidden;transition:max-height .32s ease;
  }
  .acc-inner{
    padding:0 22px 24px 70px;font-size:15px;color:var(--ink-soft);line-height:1.9;
  }
  .acc-inner p{margin:0 0 14px;}
  .acc-inner p:last-child{margin-bottom:0;}
  .acc-inner ul{margin:0 0 14px;padding:0;list-style:none;}
  .acc-inner li{position:relative;padding-left:18px;margin-bottom:8px;}
  .acc-inner li::before{
    content:"";position:absolute;left:0;top:11px;width:6px;height:6px;border-radius:50%;
    background:var(--primary);opacity:.75;
  }
  .note-amber{
    background:#FDF4E9;border-left:3px solid var(--accent);border-radius:0 10px 10px 0;
    padding:12px 16px;font-size:14px;color:#7A4B14;margin:0 0 14px;
  }
  @media (max-width:640px){
    .acc-trigger{padding:16px 16px;gap:12px;}
    .acc-title{font-size:16px;}
    .acc-inner{padding:0 16px 20px 16px;font-size:15px;}
  }

  /* ============ 授权层级卡 ============ */
  .scope-band{background:var(--bg-alt);padding:56px 0;border-top:1px solid var(--line);border-bottom:1px solid var(--line);}
  @media (min-width:768px){ .scope-band{padding:80px 0;} }
  .band-head{max-width:660px;margin-bottom:36px;}
  .band-head h2{font-size:clamp(22px,2.4vw,30px);font-weight:800;margin:0 0 12px;line-height:1.4;}
  .band-head p{font-size:16px;color:var(--ink-soft);margin:0;line-height:1.85;}
  .scope-grid{display:grid;grid-template-columns:1fr;gap:24px;}
  @media (min-width:768px){ .scope-grid{grid-template-columns:repeat(3,1fr);} }
  .scope-card{
    background:#fff;border:1px solid var(--line);border-radius:var(--r-card);
    padding:26px 24px;box-shadow:var(--shadow-card);
    transition:transform .2s ease, box-shadow .2s ease;
  }
  .scope-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-card-hover);}
  .scope-card .tag{
    display:inline-block;font-size:12px;font-weight:700;letter-spacing:.08em;
    padding:4px 10px;border-radius:999px;background:var(--primary-soft);color:var(--primary);
    margin-bottom:14px;
  }
  .scope-card h3{font-size:18px;font-weight:700;margin:0 0 10px;line-height:1.5;}
  .scope-card p{font-size:15px;color:var(--ink-soft);margin:0 0 16px;line-height:1.85;}
  .scope-card ul{list-style:none;margin:0;padding:14px 0 0;border-top:1px solid var(--line);}
  .scope-card li{
    position:relative;padding-left:20px;font-size:14px;color:var(--ink-soft);margin-bottom:8px;line-height:1.7;
  }
  .scope-card li::before{
    content:"✓";position:absolute;left:0;top:0;color:var(--primary);font-size:13px;font-weight:700;
  }

  /* ============ 流程 ============ */
  .flow-section{padding:56px 0;}
  @media (min-width:768px){ .flow-section{padding:80px 0;} }
  .flow-list{position:relative;margin:0;padding:0;list-style:none;max-width:820px;}
  .flow-list::before{
    content:"";position:absolute;left:17px;top:12px;bottom:12px;width:2px;background:var(--line);
  }
  .flow-item{position:relative;padding:0 0 30px 56px;}
  .flow-item:last-child{padding-bottom:0;}
  .flow-dot{
    position:absolute;left:0;top:2px;width:36px;height:36px;border-radius:50%;
    background:#fff;border:2px solid var(--primary);color:var(--primary);
    display:flex;align-items:center;justify-content:center;font-size:14px;font-weight:700;
    box-shadow:0 0 0 6px #fff;
  }
  .flow-item h3{font-size:17px;font-weight:700;margin:0 0 8px;line-height:1.5;}
  .flow-item p{font-size:15px;color:var(--ink-soft);margin:0;line-height:1.9;}

  /* ============ FAQ ============ */
  .faq-section{padding:56px 0;background:var(--bg-alt);border-top:1px solid var(--line);}
  @media (min-width:768px){ .faq-section{padding:80px 0;} }
  .faq-wrap{max-width:800px;margin:0 auto;}
  .faq-head{text-align:center;margin-bottom:36px;}
  .faq-head h2{font-size:clamp(22px,2.4vw,30px);font-weight:800;margin:0 0 12px;}
  .faq-head p{font-size:16px;color:var(--ink-soft);margin:0;}
  .faq-item{
    background:#fff;border:1px solid var(--line);border-radius:var(--r-sm);
    margin-bottom:12px;overflow:hidden;transition:box-shadow .2s ease,border-color .2s ease;
  }
  .faq-item:hover{box-shadow:var(--shadow-card);}
  .faq-item.is-open{border-color:rgba(30,75,143,.35);}
  .faq-q{
    width:100%;display:flex;align-items:center;gap:16px;text-align:left;
    background:transparent;border:0;cursor:pointer;padding:20px 24px;
    font-size:17px;font-weight:600;color:var(--ink);line-height:1.6;
  }
  .faq-q span.q-text{flex:1;}
  .faq-sign{
    flex-shrink:0;width:22px;height:22px;position:relative;color:var(--primary);
    transition:transform .22s ease;
  }
  .faq-sign::before,.faq-sign::after{content:"";position:absolute;background:currentColor;border-radius:2px;}
  .faq-sign::before{left:2px;right:2px;top:10px;height:2px;}
  .faq-sign::after{top:2px;bottom:2px;left:10px;width:2px;transition:transform .22s ease,opacity .22s ease;}
  .faq-item.is-open .faq-sign{transform:rotate(180deg);}
  .faq-item.is-open .faq-sign::after{opacity:0;transform:scaleY(0);}
  .faq-a{max-height:0;overflow:hidden;transition:max-height .3s ease;}
  .faq-a-inner{
    padding:0 24px 22px;font-size:15px;color:var(--ink-soft);line-height:1.9;
    border-top:1px solid var(--line);padding-top:16px;margin:0 24px 0;
  }
  @media (max-width:640px){
    .faq-q{padding:16px 18px;font-size:16px;}
    .faq-a-inner{margin:0 18px;padding:14px 0 18px;font-size:15px;}
  }

  /* ============ CTA 带 ============ */
  .cta-band-wrap{padding:56px 0;}
  @media (min-width:768px){ .cta-band-wrap{padding:72px 0;} }
  .cta-band{
    position:relative;overflow:hidden;border-radius:20px;
    background:var(--primary);color:#fff;padding:40px 28px;
    display:grid;grid-template-columns:1fr;gap:24px;align-items:center;
  }
  .cta-band::after{
    content:"";position:absolute;right:-60px;top:-60px;width:260px;height:260px;
    border:1px solid rgba(255,255,255,.16);border-radius:50%;
  }
  .cta-band::before{
    content:"";position:absolute;right:20px;bottom:-90px;width:200px;height:200px;
    border:1px solid rgba(255,255,255,.12);border-radius:50%;
  }
  @media (min-width:768px){ .cta-band{padding:48px 48px;grid-template-columns:1fr auto;gap:40px;} }
  .cta-band h2{font-size:clamp(20px,2.2vw,28px);font-weight:800;margin:0 0 10px;position:relative;z-index:1;}
  .cta-band p{font-size:15px;color:rgba(255,255,255,.82);margin:0;line-height:1.85;position:relative;z-index:1;max-width:560px;}
  .cta-band .btn{position:relative;z-index:1;}

  /* ============ Footer ============ */
  .site-footer{background:#fff;border-top:1px solid var(--line);padding:56px 0 24px;margin-top:0;}
  .footer-grid{display:grid;grid-template-columns:1fr;gap:36px;}
  @media (min-width:768px){ .footer-grid{grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:40px;} }
  .footer-brand .brand{margin-bottom:14px;}
  .footer-brand p{font-size:14px;color:var(--ink-soft);line-height:1.9;margin:0 0 18px;max-width:320px;}
  .footer-social{display:flex;gap:10px;}
  .footer-social a{
    width:36px;height:36px;border-radius:10px;border:1px solid var(--line);
    display:inline-flex;align-items:center;justify-content:center;color:var(--ink-soft);background:#fff;
  }
  .footer-social a:hover{color:var(--primary);border-color:var(--primary);background:var(--primary-soft);transform:translateY(-1px);}
  .footer-col h4{font-size:14px;font-weight:700;margin:0 0 16px;color:var(--ink);letter-spacing:.04em;}
  .footer-col ul{list-style:none;margin:0;padding:0;}
  .footer-col li{margin-bottom:10px;}
  .footer-col a{font-size:14px;color:var(--ink-soft);}
  .footer-col a:hover{color:var(--primary);}
  .footer-col span{font-size:14px;color:var(--ink-soft);line-height:1.8;}
  .age-note{
    font-size:13px;color:var(--ink-mute);line-height:1.8;margin:14px 0 0;
    padding:12px 14px;background:var(--bg-alt);border-radius:10px;border:1px solid var(--line);
  }
  .footer-bottom{
    margin-top:40px;padding-top:20px;border-top:1px solid var(--line);
    display:flex;flex-wrap:wrap;gap:12px 24px;align-items:center;justify-content:space-between;
  }
  .footer-bottom p{font-size:14px;color:var(--ink-mute);margin:0;}
  .legal{display:flex;flex-wrap:wrap;gap:20px;}
  .legal a{font-size:14px;color:var(--ink-soft);}
  .legal a:hover{color:var(--primary);}

  /* ============ 动效 ============ */
  .reveal{opacity:0;transform:translateY(12px);transition:opacity .5s ease, transform .5s ease;}
  .reveal.is-in{opacity:1;transform:none;}
  @media (prefers-reduced-motion: reduce){
    .reveal{opacity:1;transform:none;transition:none;}
    html{scroll-behavior:auto;}
  }