/* roulang page: index */
:root{
  --ink:#17211d;
  --body:#3f4c46;
  --muted:#848e89;
  --paper:#f5f2ed;
  --paper-deep:#efe9e1;
  --panel:#ffffff;
  --brand:#0d3b2e;
  --brand-deep:#08251e;
  --brand-soft:#dfe8e2;
  --accent:#f1603f;
  --accent-deep:#cd4d2f;
  --gold:#bb8a5a;
  --border:#ded8cf;
  --focus:#eca06f;
  --radius:8px;
  --radius-pill:999px;
  --shadow-sm:0 1px 2px rgba(17,43,34,.05);
  --shadow-lg:0 12px 30px rgba(17,43,34,.08);
  --font-family:"PingFang SC","Microsoft YaHei","Noto Sans CJK SC","Helvetica Neue",sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:88px;}
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  *,*::before,*::after{transition:none!important;animation:none!important}
}
body{
  margin:0;
  font-family:var(--font-family);
  font-size:16px;
  line-height:1.75;
  background:var(--paper);
  color:var(--ink);
  -webkit-font-smoothing:antialiased;
}
img{display:block;max-width:100%;height:auto}
a{color:inherit;text-decoration:none}
button,input{font-family:inherit;font-size:inherit}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4,p,figure{margin:0}
h1,h2,h3,h4{line-height:1.25;color:var(--ink)}
::selection{background:var(--brand-soft);color:var(--ink)}
:focus-visible{outline:2px solid var(--focus);outline-offset:2px;border-radius:4px}

.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px}
.container-narrow{max-width:820px}
.section{padding:96px 0;position:relative}
.section-alt{background:var(--panel)}
.section-soft{background:#faf8f4}
.section-head{margin-bottom:48px;max-width:760px}
.section-head.center{margin-left:auto;margin-right:auto;text-align:center}
.eyebrow{
  display:flex;align-items:center;gap:10px;
  font-size:13px;font-weight:600;letter-spacing:.14em;
  color:var(--gold);text-transform:uppercase;margin-bottom:16px;
}
.eyebrow::before{content:"";width:18px;height:1px;background:var(--gold)}
.section-head.center .eyebrow{justify-content:center}
.section-head.center .eyebrow::after{content:"";width:18px;height:1px;background:var(--gold)}
.section-head h2{
  font-size:clamp(24px,3.2vw,36px);
  font-weight:800;
  line-height:1.2;
  letter-spacing:-.01em;
  color:var(--ink);
  margin-bottom:16px;
}
.section-head h2::before{
  content:"";display:block;width:54px;height:4px;background:var(--gold);
  border-radius:3px;margin-bottom:18px;
}
.section-head.lead p{margin-top:0;color:var(--body);font-size:16px}
.lead-copy{margin-top:14px;color:var(--body);font-size:16px;max-width:720px}
.text-center{text-align:center}

.grid-x > .cell{padding:0 12px}
.grid-x + .grid-x{margin-top:0}

/* Header */
.site-header{
  position:sticky;
  top:0;
  z-index:80;
  background:rgba(245,242,237,.96);
  border-bottom:1px solid var(--border);
  -webkit-backdrop-filter:blur(8px);
  backdrop-filter:blur(8px);
}
.header-inner{
  display:flex;
  align-items:center;
  justify-content:space-between;
  min-height:72px;
  gap:28px;
}
.brand{
  display:inline-flex;
  align-items:center;
  gap:10px;
  font-weight:700;
  font-size:17px;
  color:var(--brand);
  letter-spacing:-.01em;
  white-space:nowrap;
}
.brand-mark{
  background:var(--brand);
  color:#fff;
  font-weight:800;
  font-size:14px;
  height:34px;
  padding:0 9px;
  border-radius:6px;
  display:inline-flex;
  align-items:center;
  letter-spacing:.02em;
}
.brand-sub{
  margin-left:2px;
  font-size:12px;
  font-weight:400;
  color:var(--muted);
  border-left:1px solid var(--border);
  padding-left:10px;
  line-height:1.2;
}
.main-nav .nav-list{
  display:flex;
  align-items:center;
  gap:32px;
}
.nav-link{
  position:relative;
  padding:10px 2px 10px;
  font-size:15px;
  color:var(--ink);
  font-weight:500;
  transition:color .2s ease;
  display:inline-flex;
  align-items:center;
}
.nav-link::after{
  content:"";
  position:absolute;
  left:0;
  bottom:4px;
  width:0;
  height:2px;
  background:var(--gold);
  border-radius:2px;
  transition:width .3s ease;
}
.nav-link:hover{color:var(--brand)}
.nav-link:hover::after{width:100%}
.nav-link.active{color:var(--brand);font-weight:700}
.nav-link.active::after{width:100%}
.nav-toggle{
  display:none;
  width:44px;height:44px;
  border:1px solid var(--border);
  border-radius:6px;
  background:transparent;
  cursor:pointer;
  align-items:center;
  justify-content:center;
  gap:5px;
  flex-direction:column;
}
.nav-toggle span{
  display:block;
  width:18px;
  height:2px;
  background:var(--brand);
  border-radius:2px;
  transition:transform .25s ease,opacity .25s ease;
}
.nav-toggle.nav-open span:nth-child(1){transform:translateY(7px) rotate(45deg)}
.nav-toggle.nav-open span:nth-child(2){opacity:0}
.nav-toggle.nav-open span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}

/* Buttons */
.btn-primary,.btn-outline,.btn-outline-light,.btn-small{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  min-height:46px;
  padding:0 26px;
  border-radius:var(--radius);
  font-weight:700;
  font-size:15px;
  letter-spacing:.01em;
  transition:background .25s ease,color .25s ease,border-color .25s ease,transform .25s ease,box-shadow .25s ease;
  cursor:pointer;
}
.btn-primary{
  background:var(--accent);
  border:1px solid var(--accent);
  color:#fff;
}
.btn-primary::after{content:"→";margin-left:8px;transition:transform .25s ease}
.btn-primary:hover{
  background:var(--accent-deep);
  border-color:var(--accent-deep);
  transform:translateY(-2px);
  box-shadow:0 10px 24px rgba(241,96,63,.26);
}
.btn-primary:hover::after{transform:translateX(4px)}
.btn-outline{
  background:transparent;
  border:1px solid var(--brand);
  color:var(--brand);
}
.btn-outline:hover{
  background:var(--brand-soft);
  border-color:var(--brand);
  transform:translateY(-2px);
}
.btn-outline-light{
  background:rgba(255,255,255,.05);
  border:1px solid rgba(255,255,255,.55);
  color:#f7f2ea;
}
.btn-outline-light:hover{
  background:rgba(255,255,255,.12);
  border-color:#fff;
  transform:translateY(-2px);
}
.btn-small{
  min-height:38px;
  padding:0 16px;
  font-size:13px;
  border-radius:var(--radius-pill);
  background:var(--brand);
  color:#fff;
  border:1px solid var(--brand);
}
.btn-small:hover{
  background:var(--brand-deep);
  border-color:var(--brand-deep);
  transform:translateY(-1px);
}

/* Hero */
.hero{
  position:relative;
  background:var(--brand-deep);
  color:rgba(255,255,255,.88);
  overflow:hidden;
  padding:84px 0 104px;
}
.hero::before{
  content:"";
  position:absolute;
  inset:0;
  background-image:
    linear-gradient(rgba(255,255,255,.03) 1px,transparent 1px),
    linear-gradient(90deg,rgba(255,255,255,.03) 1px,transparent 1px);
  background-size:48px 48px;
  pointer-events:none;
}
.hero::after{
  content:"";
  position:absolute;
  right:0;
  top:0;
  width:46%;
  height:100%;
  background:url('/assets/images/backpic/back-1.webp') no-repeat center right/cover;
  opacity:.12;
  pointer-events:none;
}
.hero .container{position:relative;z-index:2}
.hero-grid{
  display:grid;
  grid-template-columns:minmax(0,1.05fr) minmax(300px,.95fr);
  gap:48px;
  align-items:center;
}
.hero-kicker{
  display:inline-flex;
  align-items:center;
  gap:8px;
  font-size:13px;
  font-weight:600;
  letter-spacing:.12em;
  color:#bfd2ca;
  background:rgba(255,255,255,.07);
  border-radius:var(--radius-pill);
  padding:4px 14px 4px 10px;
}
.dot{
  width:8px;height:8px;border-radius:50%;
  background:var(--accent);
  box-shadow:0 0 0 4px rgba(241,96,63,.2);
}
.hero h1{
  font-size:clamp(32px,5.2vw,56px);
  line-height:1.14;
  margin:24px 0 24px;
  color:#f7f2ea;
  font-weight:800;
  letter-spacing:-.02em;
  max-width:640px;
}
.hero h1 .hl{
  display:inline;
  background:linear-gradient(180deg,transparent 68%,rgba(187,138,90,.36) 68%,rgba(187,138,90,.5) 96%);
  padding:0 2px;
}
.hero-lead{
  font-size:17px;
  line-height:1.8;
  max-width:580px;
  color:#d4e2db;
  margin-bottom:32px;
}
.hero-actions{
  display:flex;
  gap:14px;
  flex-wrap:wrap;
  align-items:center;
}
.hero-badges{
  display:flex;
  flex-wrap:wrap;
  gap:10px 22px;
  margin-top:34px;
  padding-top:8px;
  color:#b9cac2;
  font-size:13px;
}
.hero-badges li{
  position:relative;
  padding-left:0;
}
.hero-badges li:before{
  content:"";
  width:5px;height:5px;border-radius:50%;
  background:var(--gold);
  display:inline-block;
  margin-right:8px;
  vertical-align:middle;
  position:relative;
  top:-1px;
}

/* Hero window */
.hero-visual{
  position:relative;
  display:flex;
  justify-content:center;
}
.window-card{
  width:100%;
  max-width:560px;
  background:#fff;
  border-radius:12px;
  overflow:hidden;
  box-shadow:0 32px 70px rgba(0,0,0,.24);
  transform:translateY(0);
  transition:transform .4s ease,box-shadow .4s ease;
}
.window-card:hover{
  transform:translateY(-6px);
  box-shadow:0 40px 80px rgba(0,0,0,.32);
}
.window-top{
  display:flex;
  align-items:center;
  gap:8px;
  background:var(--brand);
  color:rgba(255,255,255,.92);
  padding:12px 16px;
  font-size:12px;
  border-bottom:1px solid rgba(255,255,255,.08);
}
.window-top .traffic{
  display:flex;
  gap:5px;
}
.window-top .traffic i{
  width:10px;height:10px;border-radius:50%;
  display:block;
}
.traffic i:nth-child(1){background:#f2764b}
.traffic i:nth-child(2){background:#ebc26d}
.traffic i:nth-child(3){background:#6cb39a}
.window-url{
  flex:1;
  display:flex;
  justify-content:center;
  min-width:0;
}
.window-url span{
  background:rgba(255,255,255,.12);
  border-radius:4px;
  padding:3px 10px;
  max-width:100%;
  overflow:hidden;
  text-overflow:ellipsis;
  white-space:nowrap;
  color:#e0ece6;
  font-size:11.5px;
}
.window-shot{
  position:relative;
  aspect-ratio:16 / 10;
  background:var(--paper);
  overflow:hidden;
}
.window-shot img{
  width:100%;
  height:100%;
  object-fit:cover;
  object-position:center top;
  opacity:.96;
}
.window-note{
  position:absolute;
  right:14px;
  bottom:14px;
  background:rgba(8,37,30,.86);
  color:#e7f0eb;
  border:1px solid rgba(255,255,255,.18);
  padding:6px 12px;
  border-radius:var(--radius-pill);
  font-size:12px;
  -webkit-backdrop-filter:blur(6px);
  backdrop-filter:blur(6px);
}
.window-note b{color:#ffd1c4}

/* Trust strip */
.trust-bar{
  background:var(--panel);
  border-bottom:1px solid var(--border);
}
.trust-grid{
  display:grid;
  grid-template-columns:repeat(5,1fr);
  gap:1px;
  background:var(--border);
  border-left:1px solid var(--border);
  border-right:1px solid var(--border);
  margin:0 auto;
}
.trust-item{
  background:var(--panel);
  padding:28px 20px;
  text-align:left;
}
.trust-item strong{
  display:flex;
  align-items:center;
  gap:8px;
  font-size:15px;
  color:var(--ink);
  margin-bottom:4px;
  font-weight:700;
}
.trust-item strong::before{
  content:"";width:7px;height:7px;border-radius:2px;
  background:var(--gold);flex:0 0 auto;
}
.trust-item span{
  font-size:13px;
  color:var(--body);
  line-height:1.6;
  display:block;
}

/* Features bento */
.bento-head{margin-bottom:48px}
.bento-grid{
  display:grid;
  grid-template-columns:repeat(12,1fr);
  gap:24px;
}
.bento-main{
  grid-column:span 7;
  background:var(--panel);
  border:1px solid var(--border);
  border-radius:var(--radius);
  overflow:hidden;
  transition:transform .3s ease,border-color .3s ease,box-shadow .3s ease;
}
.bento-main:hover{
  transform:translateY(-3px);
  box-shadow:var(--shadow-lg);
  border-color:var(--gold);
}
.bento-pic{position:relative;overflow:hidden;background:#e9e4dc}
.bento-pic img{width:100%;height:280px;object-fit:cover;object-position:center top;transition:transform .6s ease}
.bento-card:hover .bento-pic img{transform:scale(1.03)}
.card-idx{
  position:absolute;
  top:16px;
  left:16px;
  background:var(--brand);
  color:#fff;
  font-size:12px;
  font-weight:700;
  border-radius:6px;
  padding:3px 10px;
  letter-spacing:.08em;
}
.bento-content{padding:28px}
.bento-content h3{
  font-size:20px;
  color:var(--ink);
  font-weight:800;
  margin-bottom:10px;
}
.bento-content p{
  color:var(--body);
  font-size:15px;
  line-height:1.8;
}
.bento-side{
  grid-column:span 5;
  display:grid;
  gap:24px;
}
.bento-side .bento-card{
  background:var(--panel);
  border:1px solid var(--border);
  border-radius:var(--radius);
  padding:30px;
  transition:transform .3s ease,border-color .3s ease,box-shadow .3s ease;
}
.bento-side .bento-card:hover,.bento-bottom:hover{
  transform:translateY(-3px);
  border-color:var(--gold);
  box-shadow:var(--shadow-lg);
}
.bento-card p{color:var(--body);font-size:15px;line-height:1.75;margin-top:8px}
.bento-bottom{
  grid-column:span 4;
  background:var(--panel);
  border:1px solid var(--border);
  border-radius:var(--radius);
  padding:30px;
  transition:transform .3s ease,border-color .3s ease,box-shadow .3s ease;
}
.bento-bottom h3{font-size:18px;font-weight:800;margin-bottom:8px}
.bento-bottom p{font-size:14px;color:var(--body);line-height:1.75}

/* Demo */
.demo-section{
  background:#fff;
  border-top:1px solid var(--border);
  border-bottom:1px solid var(--border);
}
.steps{
  display:grid;
  grid-template-columns:repeat(3,1fr);
  gap:32px 24px;
  align-items:stretch;
  margin-top:40px;
}
.step-item{
  position:relative;
  border:1px solid var(--border);
  border-radius:var(--radius);
  background:var(--paper);
  padding:30px;
  display:flex;
  flex-direction:column;
  gap:16px;
  transition:box-shadow .3s ease,border-color .3s ease,transform .3s ease;
}
.step-item:hover{
  box-shadow:var(--shadow-lg);
  border-color:var(--gold);
  transform:translateY(-4px);
}
.step-no{
  width:60px;height:60px;
  display:flex;
  align-items:center;
  justify-content:center;
  font-size:38px;
  font-weight:800;
  color:transparent;
  -webkit-text-stroke:1.4px var(--gold);
  border-bottom:1px solid var(--border);
  font-variant-numeric:tabular-nums;
}
.step-item:nth-child(2){
  background:var(--panel);
}
.step-item h3{
  font-size:19px;
  font-weight:800;
  color:var(--ink);
}
.step-item p{
  font-size:14px;
  color:var(--body);
  line-height:1.8;
}
.mini-browser{
  border:1px solid var(--border);
  border-radius:8px;
  overflow:hidden;
  background:var(--panel);
  margin-top:4px;
}
.mini-url{
  background:#f1ede6;
  padding:8px 12px;
  font-size:11.5px;
  color:var(--muted);
  border-bottom:1px solid var(--border);
  white-space:nowrap;
  overflow:hidden;
  text-overflow:ellipsis;
}
.mini-shot{
  position:relative;
  aspect-ratio:16/10;
  overflow:hidden;
}
.mini-shot img{
  width:100%;height:100%;
  object-fit:cover;
  object-position:center top;
}
.mini-tag{
  position:absolute;
  right:12px;
  bottom:12px;
  background:var(--accent);
  color:#fff;
  font-size:12px;
  font-weight:600;
  padding:5px 12px;
  border-radius:var(--radius-pill);
  box-shadow:0 6px 18px rgba(241,96,63,.3);
}
.demo-bottom{
  margin-top:48px;
  text-align:center;
}

/* Evidence */
.evidence-wrap{
  display:grid;
  grid-template-columns:minmax(0,1.15fr) minmax(0,.85fr);
  gap:48px;
  align-items:center;
}
.metrics-grid{
  display:grid;
  grid-template-columns:repeat(2,1fr);
  gap:24px;
}
.metric-card{
  background:var(--panel);
  border:1px solid var(--border);
  border-radius:var(--radius);
  padding:28px;
  transition:border-color .3s ease,transform .3s ease,box-shadow .3s ease;
}
.metric-card:hover{
  border-color:var(--gold);
  transform:translateY(-3px);
  box-shadow:var(--shadow-lg);
}
.metric-num{
  font-size:44px;
  font-weight:800;
  color:var(--gold);
  font-variant-numeric:tabular-nums;
  line-height:1.1;
  letter-spacing:-.02em;
}
.metric-num small{font-size:18px;font-weight:700}
.metric-label{
  margin-top:8px;
  font-size:14px;
  color:var(--body);
  line-height:1.7;
}
.evidence-note{
  border-left:4px solid var(--accent);
  background:var(--panel);
  border-radius:0 8px 8px 0;
  box-shadow:var(--shadow-sm);
  padding:30px;
  color:var(--body);
}
.evidence-note blockquote{font-size:15px;line-height:1.9;color:var(--ink)}
.evidence-note span{
  display:block;
  margin-top:14px;
  font-size:13px;
  color:var(--muted);
}

/* News updates */
.cms-area .section-head p{max-width:640px}
.news-grid{
  display:grid;
  grid-template-columns:repeat(3,1fr);
  gap:24px;
}
.news-card{
  position:relative;
  background:var(--panel);
  border:1px solid var(--border);
  border-radius:var(--radius);
  overflow:hidden;
  display:flex;
  flex-direction:column;
  transition:transform .3s ease,box-shadow .3s ease,border-color .3s ease;
}
.news-card:hover{
  transform:translateY(-4px);
  border-color:var(--gold);
  box-shadow:var(--shadow-lg);
}
.news-thumb{
  position:relative;
  display:block;
  aspect-ratio:4/3;
  overflow:hidden;
  background:var(--paper-deep);
}
.news-thumb img{
  width:100%;
  height:100%;
  object-fit:cover;
  transition:transform .6s ease;
}
.news-card:hover .news-thumb img{transform:scale(1.04)}
.news-cat{
  position:absolute;
  right:12px;
  top:12px;
  background:rgba(13,59,46,.88);
  color:#fff;
  border-radius:99px;
  padding:4px 12px;
  font-size:12px;
  font-weight:600;
  pointer-events:none;
  -webkit-backdrop-filter:blur(6px);
  backdrop-filter:blur(6px);
}
.news-body{
  display:block;
  padding:20px 22px 14px;
  flex:1;
}
.news-title{
  display:-webkit-box;
  -webkit-line-clamp:2;
  -webkit-box-orient:vertical;
  overflow:hidden;
  color:var(--ink);
  font-size:17px;
  font-weight:800;
  line-height:1.5;
  min-height:51px;
  transition:color .2s ease;
}
.news-card:hover .news-title{color:var(--brand)}
.news-summary{
  display:-webkit-box;
  -webkit-line-clamp:2;
  -webkit-box-orient:vertical;
  overflow:hidden;
  color:var(--body);
  font-size:14px;
  line-height:1.75;
  margin-top:8px;
}
.news-meta{
  display:flex;
  align-items:center;
  justify-content:space-between;
  border-top:1px solid var(--border);
  margin:0 22px 18px;
  padding-top:12px;
  font-size:12px;
  color:var(--muted);
}
.cms-empty{
  grid-column:1/-1;
  background:var(--panel);
  border:1px dashed var(--border);
  border-radius:var(--radius);
  min-height:220px;
  display:flex;
  align-items:center;
  justify-content:center;
  color:var(--muted);
}

/* Plan / Service */
.plan-grid{
  display:grid;
  grid-template-columns:repeat(3,1fr);
  gap:24px;
  align-items:stretch;
}
.plan-card{
  background:var(--panel);
  border:1px solid var(--border);
  border-radius:12px;
  padding:34px;
  display:flex;
  flex-direction:column;
  position:relative;
  transition:transform .3s ease,box-shadow .3s ease,border-color .3s ease;
}
.plan-card:hover{
  transform:translateY(-4px);
  box-shadow:var(--shadow-lg);
  border-color:var(--gold);
}
.plan-featured{
  background:var(--brand);
  border-color:var(--brand);
  transform:translateY(-6px);
  box-shadow:0 20px 42px rgba(8,37,30,.16);
}
.plan-featured:hover{transform:translateY(-8px);box-shadow:0 24px 48px rgba(8,37,30,.2)}
.plan-badge{
  position:absolute;
  top:-12px;
  left:50%;
  transform:translateX(-50%);
  background:var(--accent);
  color:#fff;
  font-size:12px;
  font-weight:700;
  border-radius:99px;
  padding:5px 14px;
  white-space:nowrap;
  box-shadow:0 6px 14px rgba(241,96,63,.28);
}
.plan-card h3{
  font-size:19px;
  font-weight:800;
  color:var(--ink);
}
.plan-featured h3,.plan-featured .plan-desc,.plan-featured li{
  color:#e5eee9;
}
.plan-price{
  margin:14px 0 6px;
  display:flex;
  align-items:baseline;
  gap:6px;
}
.plan-price .fx{
  font-size:44px;
  font-weight:800;
  color:var(--gold);
  font-variant-numeric:tabular-nums;
  line-height:1;
}
.plan-featured .plan-price .fx{color:#ffd8a3}
.plan-price sup{font-size:13px;color:var(--muted);font-weight:400}
.plan-desc{
  font-size:14px;
  color:var(--body);
  margin-bottom:22px;
  line-height:1.7;
}
.plan-featured .plan-desc{color:#c7d8d1}
.plan-list{
  flex:1;
  display:grid;
  gap:10px;
  margin-bottom:28px;
}
.plan-list li{
  position:relative;
  padding-left:24px;
  color:var(--body);
  font-size:14px;
  line-height:1.7;
}
.plan-list li::before{
  content:"";
  position:absolute;
  left:0;
  top:.55em;
  width:8px;
  height:15px;
  border:solid var(--gold);
  border-width:0 1px 2px 0;
  transform:rotate(45deg);
  border-radius:1px;
}
.plan-featured .plan-list li{color:#eef3f0}
.plan-featured .btn-plan-action{background:#fff;color:var(--brand);border:1px solid #fff}
.plan-featured .btn-plan-action:hover{background:var(--brand-soft);border-color:var(--brand-soft);color:var(--brand-deep)}
.plan-note{
  margin-top:28px;
  font-size:13px;
  color:var(--muted);
}
.plan-note a{color:var(--brand);border-bottom:1px solid var(--gold)}
.plan-note a:hover{color:var(--accent)}

/* FAQ */
.faq-wrap{
  background:#fff;
  border-top:1px solid var(--border);
  border-bottom:1px solid var(--border);
}
.faq-max{
  max-width:800px;
  margin:0 auto;
}
.faq-list{
  border-top:1px solid var(--border);
}
.faq-item{
  border-bottom:1px solid var(--border);
  background:var(--panel);
}
.faq-item summary{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:20px;
  font-size:17px;
  font-weight:600;
  color:var(--ink);
  padding:22px 2px;
  cursor:pointer;
  list-style:none;
  transition:color .2s ease,padding-left .25s ease;
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary:hover{color:var(--brand);padding-left:8px}
.faq-item summary .acc-icon{
  flex:0 0 auto;
  position:relative;
  width:28px;
  height:28px;
  border:1px solid var(--border);
  border-radius:50%;
  transition:background .3s ease,border-color .3s ease,transform .3s ease,box-shadow .3s ease;
}
.faq-item summary .acc-icon::before,
.faq-item summary .acc-icon::after{
  content:"";
  position:absolute;
  left:50%;
  top:50%;
  width:12px;
  height:1.6px;
  background:var(--brand);
  border-radius:2px;
  transform:translate(-50%,-50%);
  transition:background .25s ease,transform .25s ease,opacity .25s ease;
}
.faq-item summary .acc-icon::after{transform:translate(-50%,-50%) rotate(90deg)}
.faq-item details[open] summary .acc-icon{
  border-color:var(--accent);
  box-shadow:0 0 0 4px rgba(241,96,63,.08);
}
.faq-item[open] summary .acc-icon::before{transform:translate(-50%,-50%) rotate(180deg);opacity:0}
.faq-item[open] summary .acc-icon::after{transform:translate(-50%,-50%) rotate(135deg);background:var(--accent)}
.faq-item[open]{
  background:var(--paper);
  border-left:3px solid var(--gold);
  padding-left:12px;
}
.faq-answer{
  padding:0 34px 26px 18px;
  color:var(--body);
  font-size:15px;
  line-height:1.85;
}

/* Contact CTA */
.contact-section{
  background:var(--brand-deep);
  color:#dce8e1;
  overflow:hidden;
  position:relative;
}
.contact-section::before{
  content:"";
  position:absolute;
  inset:0;
  background-image:linear-gradient(rgba(255,255,255,.02) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.02) 1px,transparent 1px);
  background-size:64px 64px;
  pointer-events:none;
}
.contact-grid{
  display:grid;
  grid-template-columns:minmax(0,1.08fr) minmax(340px,.92fr);
  gap:56px;
  align-items:center;
  position:relative;
}
.contact-copy h2{
  color:#f7f2ea;
  font-size:clamp(25px,3vw,34px);
  font-weight:800;
  line-height:1.25;
  margin-bottom:16px;
}
.contact-copy h2::before{
  content:"";display:block;width:54px;height:4px;
  background:var(--gold);border-radius:3px;margin-bottom:18px;
}
.contact-copy p{
  max-width:560px;
  color:#c2d2cb;
  font-size:15px;
  line-height:1.85;
}
.form-panel{
  background:var(--paper);
  border-radius:12px;
  padding:26px;
}
.form-panel label{
  display:block;
  font-size:13px;
  color:var(--body);
  margin:8px 0 6px;
  font-weight:600;
}
.form-panel input{
  display:block;
  width:100%;
  border:1px solid var(--border);
  background:#fff;
  border-radius:6px;
  min-height:46px;
  padding:0 14px;
  color:var(--ink);
  transition:border-color .25s ease,box-shadow .25s ease,background .25s ease;
}
.form-panel input:focus{
  outline:none;
  border-color:var(--focus);
  background:var(--brand-soft);
  box-shadow:0 0 0 4px rgba(236,160,111,.16);
}
.form-panel input::placeholder{color:#a4aca8}
.form-panel-nav{
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:12px;
}
.btn-beige{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  width:100%;
  min-height:46px;
  background:var(--accent);
  border:1px solid var(--accent);
  color:#fff;
  border-radius:6px;
  font-weight:700;
  margin-top:14px;
  cursor:pointer;
  transition:background .25s ease,transform .25s ease,box-shadow .25s ease;
}
.btn-beige:hover{
  background:var(--accent-deep);
  border-color:var(--accent-deep);
  transform:translateY(-2px);
  box-shadow:0 8px 18px rgba(241,96,63,.28);
}
.form-tip{
  color:var(--muted);
  font-size:12px;
  text-align:center;
  margin-top:10px;
}

/* Footer */
.site-footer{
  background:var(--brand);
  color:#d3dfd8;
}
.footer-top{
  padding:72px 0 52px;
  display:grid;
  grid-template-columns:minmax(0,1.4fr) repeat(3,1fr);
  gap:48px;
}
.footer-brand .footer-title{
  font-size:21px;
  font-weight:800;
  color:#fff;
  display:flex;
  align-items:center;
  margin-bottom:14px;
}
.footer-brand .footer-title span{
  background:#fff;
  color:var(--brand);
  font-size:12px;
  margin-left:10px;
  border-radius:5px;
  padding:2px 7px;
  font-weight:800;
}
.footer-brand p{color:#bdcfc6;font-size:14px;max-width:300px;line-height:1.85}
.footer-title-row{
  font-size:13px;
  color:#fff;
  letter-spacing:.12em;
  text-transform:uppercase;
  margin-bottom:20px;
  display:flex;
  align-items:center;
  gap:8px;
}
.footer-title-row::before{
  content:"";width:8px;height:8px;
  background:var(--gold);
  border-radius:2px;
}
.footer-col ul li{margin-bottom:10px}
.footer-col ul li a{
  color:#c4d3cc;
  font-size:14px;
  transition:color .2s ease,padding-left .25s ease;
}
.footer-col ul li a:hover{color:#fff;padding-left:4px}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.1);
  padding:26px 0 34px;
  color:#97ada2;
  font-size:13px;
}
.footer-bottom .footer-bottom-inner{
  display:flex;
  flex-wrap:wrap;
  gap:10px 28px;
  align-items:center;
  justify-content:space-between;
}
.footer-safe{
  max-width:760px;
  color:#8aa69b;
  line-height:1.7;
  font-size:12px;
  margin-top:14px;
}

/* Floating CTA */
.float-cta{
  position:fixed;
  right:24px;
  bottom:32px;
  z-index:60;
  background:var(--brand-deep);
  color:#e7f0eb;
  padding:12px 22px;
  border-radius:999px;
  font-size:14px;
  font-weight:700;
  box-shadow:0 10px 26px rgba(8,37,30,.24);
  display:flex;
  align-items:center;
  gap:10px;
  transition:background .25s ease,transform .25s ease,box-shadow .25s ease;
}
.float-cta::after{content:"→";transition:transform .25s ease}
.float-cta:hover{
  background:var(--accent);
  color:#fff;
  transform:translateY(-3px);
  box-shadow:0 14px 30px rgba(241,96,63,.3);
}
.float-cta:hover::after{transform:translateX(4px)}
.float-cta i{
  width:8px;height:8px;border-radius:50%;
  background:var(--gold);
  box-shadow:0 0 0 4px rgba(187,138,90,.18);
}
.mobile-cta{
  display:none;
}
.sr-only{
  position:absolute;
  width:1px;height:1px;
  overflow:hidden;
  clip:rect(0,0,0,0);
  white-space:nowrap;
  border:0;
  padding:0;
  margin:-1px;
}

/* Motion */
.js .reveal{
  opacity:0;
  transform:translateY(16px);
  transition:opacity .65s ease,transform .65s ease;
}
.js .reveal.is-in{
  opacity:1;
  transform:none;
}
@media (prefers-reduced-motion:reduce){
  .js .reveal{opacity:1;transform:none}
}

/* Responsive */
@media (max-width:1023px){
  .hero{ padding-top:64px;}
  .hero-grid{grid-template-columns:1fr;gap:40px}
  .hero-visual{order:1}
  .hero-copy{order:2}
  .window-card{max-width:560px;margin:0 auto}
  .bento-main{grid-column:span 12}
  .bento-side{grid-column:span 12}
  .bento-bottom{grid-column:span 6}
  .steps{grid-template-columns:1fr 1fr}
  .step-item:nth-child(3){grid-column:span 2}
  .trust-grid{grid-template-columns:repeat(2,1fr)}
  .trust-item{text-align:left;padding-left:24px}
  .news-grid{grid-template-columns:1fr 1fr}
  .plan-grid{grid-template-columns:1fr 1fr}
  .plan-featured{grid-column:span 2}
  .contact-grid{grid-template-columns:1fr;gap:40px}
  .footer-top{grid-template-columns:1fr 1fr;gap:32px}
}
@media (max-width:767px){
  body{padding-bottom:0}
  .section{padding:66px 0}
  .container{padding:0 18px}
  .header-inner{min-height:64px;gap:12px}
  .brand{font-size:14px}
  .brand-mark{height:30px;padding:0 7px;font-size:12px}
  .brand-sub{display:none}
  .main-nav{
    position:fixed;
    left:0;
    right:0;
    top:64px;
    background:var(--paper);
    border-bottom:1px solid var(--border);
    padding:18px 0 26px;
    display:block;
    opacity:0;
    visibility:hidden;
    transform:translateY(-12px);
    transition:opacity .25s ease,visibility .25s ease,transform .25s ease;
    box-shadow:0 20px 32px rgba(17,43,34,.08);
  }
  .main-nav.nav-open{
    opacity:1;
    visibility:visible;
    transform:none;
  }
  .nav-list{flex-direction:column;align-items:stretch;gap:6px;padding:0 18px}
  .nav-link{
    display:block;
    font-size:17px;
    padding:14px 8px;
    border-left:0;
    margin-bottom:2px;
  }
  .nav-link::after{left:6px;right:auto;width:0}
  .nav-link.active{
    background:var(--brand-soft);
    border-radius:6px;
    padding-left:14px;
  }
  .nav-toggle{display:flex}
  .hero h1{margin-top:20px;font-size:clamp(28px,8vw,38px)}
  .hero-badges{gap:8px 16px}
  .trust-grid{grid-template-columns:1fr 1fr}
  .trust-item{justify-content:flex-start;padding:22px 16px}
  .trust-item strong{font-size:14px}
  .bento-main,.bento-side,.bento-bottom{grid-column:span 12}
  .bento-bottom{display:block}
  .bento-pic img{height:210px}
  .bento-content,.bento-side .bento-card,.bento-bottom{padding:22px}
  .steps{grid-template-columns:1fr}
  .step-item:nth-child(3){grid-column:auto}
  .step-no{width:52px;height:52px;font-size:32px}
  .demo-bottom .btn-primary{margin-bottom:8px}
  .evidence-wrap{grid-template-columns:1fr;gap:32px}
  .metrics-grid{gap:14px}
  .metric-num{font-size:36px}
  .news-grid{grid-template-columns:1fr}
  .news-body{padding:18px 18px 12px}
  .plan-grid{grid-template-columns:1fr}
  .plan-card{padding:26px}
  .plan-featured{grid-column:span 1}
  .contact-grid{grid-template-columns:1fr;gap:32px}
  .form-panel-nav{grid-template-columns:1fr}
  .footer-top{grid-template-columns:1fr;gap:32px}
  .footer-bottom .footer-bottom-inner{flex-direction:column;align-items:flex-start}
  .float-cta{right:14px;bottom:12px;left:14px;justify-content:center;border-radius:10px;box-shadow:none}
  .float-cta i{display:none}
}

/* roulang page: article */
:root {
            --color-ink: #17211D;
            --color-body: #3F4C46;
            --color-muted: #848E89;
            --color-paper: #F5F2ED;
            --color-panel: #FFFFFF;
            --color-brand: #0D3B2E;
            --color-brand-deep: #08251E;
            --color-brand-soft: #DFE8E2;
            --color-accent: #F1603F;
            --color-gold: #BB8A5A;
            --color-border: #DED8CF;
            --focus-outline: #ECA06F;
            --shadow-xs: 0 1px 2px rgba(17, 43, 34, .05);
            --shadow-hover: 0 12px 30px rgba(17, 43, 34, .08);
            --radius: 8px;
            --radius-full: 999px;
            --container: 1200px;
            --header-h: 72px;
            --section-space: 96px;
        }

        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }

        html {
            scroll-behavior: smooth;
            scroll-padding-top: calc(var(--header-h) + 18px);
        }

        body {
            background: var(--color-paper);
            color: var(--color-ink);
            font-family: "PingFang SC", "Microsoft YaHei", "Noto Sans CJK SC", sans-serif;
            font-size: 16px;
            line-height: 1.75;
            -webkit-font-smoothing: antialiased;
        }

        img {
            max-width: 100%;
            height: auto;
            display: inline-block;
            vertical-align: middle;
        }

        a {
            color: var(--color-brand);
            text-decoration: none;
            transition: color .25s ease, background-color .25s ease, border-color .25s ease, transform .25s ease, box-shadow .25s ease;
        }

        button {
            border: 0;
            background: none;
            cursor: pointer;
            font-family: inherit;
        }

        ul {
            list-style: none;
        }

        .container {
            max-width: var(--container);
            margin-left: auto;
            margin-right: auto;
            padding-left: 24px;
            padding-right: 24px;
        }

        .section {
            padding: var(--section-space) 0;
        }

        .grid-x {
            display: flex;
            flex-wrap: wrap;
            flex-direction: row;
        }

        .grid-margin-x {
            margin-left: -12px;
            margin-right: -12px;
        }

        .grid-margin-x > .cell {
            padding-left: 12px;
            padding-right: 12px;
        }

        .large-8 {
            width: 66.6667%;
            max-width: 66.6667%;
        }

        .large-4 {
            width: 33.3333%;
            max-width: 33.3333%;
        }

        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            min-height: 46px;
            padding: 0 26px;
            border-radius: var(--radius);
            border: 1px solid transparent;
            font-size: 15px;
            font-weight: 700;
            line-height: 1;
            white-space: nowrap;
            transition: all .25s ease-out;
            text-align: center;
        }

        .btn-accent {
            background: var(--color-accent);
            color: #fff;
        }

        .btn-accent:hover {
            background: #d94a2b;
            color: #fff;
            transform: translateY(-2px);
            box-shadow: 0 10px 20px rgba(241, 96, 63, .22);
        }

        .btn-outline {
            background: transparent;
            border-color: var(--color-brand);
            color: var(--color-brand);
        }

        .btn-outline:hover {
            background: var(--color-brand-soft);
            color: var(--color-brand);
            border-color: var(--color-brand);
        }

        .site-header {
            position: sticky;
            top: 0;
            z-index: 80;
            height: var(--header-h);
            background: rgba(245, 242, 237, .96);
            border-bottom: 1px solid var(--color-border);
        }

        .header-inner {
            height: 100%;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 20px;
        }

        .brand {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            flex-shrink: 0;
        }

        .brand-mark {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 38px;
            height: 38px;
            background: var(--color-brand);
            color: #fff;
            border-radius: 10px;
            font-size: 16px;
            font-weight: 800;
            letter-spacing: -.02em;
        }

        .brand-text {
            color: var(--color-brand);
            font-size: 18px;
            font-weight: 800;
            letter-spacing: -.01em;
            line-height: 1.2;
        }

        .brand-sub {
            display: inline-block;
            color: var(--color-muted);
            font-size: 12px;
            font-weight: 500;
            line-height: 1.2;
            padding-left: 2px;
        }

        .main-nav {
            display: flex;
            align-items: center;
        }

        .nav-list {
            display: flex;
            align-items: center;
            gap: 34px;
        }

        .nav-link {
            position: relative;
            display: inline-block;
            font-size: 15px;
            color: var(--color-body);
            font-weight: 500;
            padding: 10px 0;
            line-height: 1.2;
        }

        .nav-link::after {
            content: "";
            position: absolute;
            left: 0;
            bottom: 2px;
            width: 0;
            height: 2px;
            background: var(--color-gold);
            transition: width .3s ease-out;
        }

        .nav-link:hover {
            color: var(--color-brand);
        }

        .nav-link:hover::after,
        .nav-link.active::after {
            width: 100%;
        }

        .nav-link.active {
            color: var(--color-brand);
            font-weight: 700;
        }

        .nav-toggle {
            display: none;
            width: 40px;
            height: 40px;
            align-items: center;
            justify-content: center;
            flex-direction: column;
            gap: 5px;
            border-radius: 6px;
        }

        .nav-toggle span {
            display: block;
            width: 22px;
            height: 2px;
            background: var(--color-brand);
            border-radius: 3px;
            transition: transform .3s ease, opacity .3s ease;
        }

        .nav-toggle.open span:nth-child(1) {
            transform: translateY(7px) rotate(45deg);
        }

        .nav-toggle.open span:nth-child(2) {
            opacity: 0;
        }

        .nav-toggle.open span:nth-child(3) {
            transform: translateY(-7px) rotate(-45deg);
        }

        .article-wrap {
            padding: 44px 0 60px;
            background: var(--color-paper);
        }

        .breadcrumb {
            display: flex;
            align-items: center;
            flex-wrap: wrap;
            gap: 10px;
            font-size: 13px;
            color: var(--color-muted);
            margin-bottom: 30px;
        }

        .breadcrumb a {
            color: var(--color-muted);
        }

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

        .breadcrumb-sep {
            color: #b3aca2;
        }

        .breadcrumb-current {
            color: var(--color-body);
            max-width: 560px;
            overflow: hidden;
            text-overflow: ellipsis;
            white-space: nowrap;
        }

        .post-header {
            margin-bottom: 26px;
        }

        .post-category {
            display: inline-block;
            background: var(--color-brand-soft);
            color: var(--color-brand);
            font-size: 13px;
            font-weight: 700;
            padding: 5px 14px;
            border-radius: var(--radius-full);
            margin-bottom: 18px;
        }

        .post-title {
            font-size: clamp(30px, 3.8vw, 46px);
            line-height: 1.25;
            font-weight: 800;
            color: var(--color-ink);
            letter-spacing: -.01em;
            margin-bottom: 18px;
        }

        .post-meta {
            display: flex;
            align-items: center;
            flex-wrap: wrap;
            gap: 6px 18px;
            color: var(--color-muted);
            font-size: 13.5px;
            line-height: 1.6;
            padding-bottom: 26px;
            border-bottom: 1px solid var(--color-border);
        }

        .post-meta time {
            color: var(--color-body);
            font-variant-numeric: tabular-nums;
        }

        .post-lead {
            margin: 24px 0 30px;
            background: var(--color-brand-soft);
            border-radius: var(--radius);
            overflow: hidden;
        }

        .article-layout {
            margin-top: 12px;
        }

        .article-primary {
            min-width: 0;
        }

        .article-body {
            color: var(--color-body);
            font-size: 17px;
            line-height: 1.9;
        }

        .article-body > * + * {
            margin-top: 1.5em;
        }

        .article-body h1,
        .article-body h2,
        .article-body h3,
        .article-body h4 {
            color: var(--color-ink);
            font-weight: 800;
            scroll-margin-top: 96px;
        }

        .article-body h2 {
            position: relative;
            font-size: clamp(24px, 2.6vw, 32px);
            line-height: 1.3;
            margin-top: 0;
            padding-top: 12px;
        }

        .article-body h2::before {
            content: "";
            display: block;
            width: 42px;
            height: 4px;
            background: var(--color-gold);
            border-radius: 4px;
            margin-bottom: 14px;
        }

        .article-body h3 {
            font-size: 21px;
            line-height: 1.4;
            color: var(--color-brand);
        }

        .article-body p {
            color: var(--color-body);
            line-height: 1.9;
            margin-top: 0;
        }

        .article-body strong {
            color: var(--color-ink);
            background: rgba(241, 96, 63, .1);
            padding: 0 5px;
            font-weight: 500;
            border-radius: 4px;
        }

        .article-body a {
            color: var(--color-accent);
            text-decoration: underline;
            text-underline-offset: 4px;
            text-decoration-color: rgba(241, 96, 63, .4);
        }

        .article-body a:hover {
            color: #c74024;
        }

        .article-body ul,
        .article-body ol {
            padding-left: 24px;
            display: grid;
            gap: 8px;
        }

        .article-body ul {
            list-style: disc;
        }

        .article-body ol {
            list-style: decimal;
        }

        .article-body img {
            border-radius: var(--radius);
            box-shadow: var(--shadow-xs);
        }

        .article-body blockquote {
            border-left: 4px solid var(--color-gold);
            background: #f0ebe2;
            padding: 18px 24px;
            color: var(--color-body);
            border-radius: 0 8px 8px 0;
        }

        .article-body blockquote p {
            margin: 0;
        }

        .article-body code {
            background: var(--color-brand-deep);
            color: #f2f5f3;
            padding: 2px 8px;
            border-radius: 6px;
            font-size: .92em;
            font-family: Consolas, "Courier New", monospace;
        }

        .article-body table {
            width: 100%;
            border-collapse: collapse;
            font-size: 15px;
        }

        .article-body th,
        .article-body td {
            border: 1px solid var(--color-border);
            padding: 10px 14px;
            text-align: left;
        }

        .article-body th {
            background: var(--color-brand-soft);
            color: var(--color-brand);
            font-weight: 700;
        }

        .article-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 8px;
            margin-top: 38px;
            margin-bottom: 34px;
        }

        .article-tag {
            display: inline-block;
            font-size: 13px;
            color: var(--color-body);
            background: var(--color-panel);
            border: 1px solid var(--color-border);
            padding: 5px 14px;
            border-radius: var(--radius-full);
        }

        .article-footer-nav {
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 14px;
            border-top: 1px solid var(--color-border);
            border-bottom: 1px solid var(--color-border);
            padding: 22px 0;
        }

        .text-link {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-weight: 700;
            color: var(--color-brand);
            font-size: 14px;
        }

        .text-link:hover {
            color: var(--color-accent);
        }

        .text-link:hover .arrow-ic {
            transform: translateX(4px);
        }

        .arrow-ic {
            transition: transform .25s ease;
        }

        .article-sidebar {
            position: sticky;
            top: 96px;
            display: grid;
            gap: 20px;
            padding-left: 12px;
        }

        .side-card {
            background: var(--color-panel);
            border: 1px solid var(--color-border);
            border-radius: var(--radius);
            padding: 24px;
            box-shadow: var(--shadow-xs);
        }

        .side-card-title {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 15px;
            font-weight: 800;
            color: var(--color-brand);
            margin-bottom: 16px;
        }

        .side-card-title::before {
            content: "";
            width: 4px;
            height: 18px;
            background: var(--color-gold);
            border-radius: 4px;
        }

        .toc-links {
            display: grid;
            gap: 6px;
            padding-left: 8px;
            border-left: 1px solid var(--color-border);
        }

        .toc-links a {
            display: block;
            font-size: 13.5px;
            line-height: 1.5;
            color: var(--color-body);
            padding: 6px 10px;
            border-radius: 6px;
            transition: all .2s ease;
        }

        .toc-links a:hover {
            background: var(--color-brand-soft);
            color: var(--color-brand);
            padding-left: 14px;
        }

        .guide-card img {
            width: 100%;
            border-radius: 6px;
            object-fit: cover;
            aspect-ratio: 16 / 10;
            margin-bottom: 14px;
        }

        .guide-card p {
            font-size: 14px;
            color: var(--color-body);
            margin-bottom: 18px;
        }

        .btn-block {
            width: 100%;
        }

        .cta-band {
            background-color: var(--color-brand-deep);
            background-image: linear-gradient(105deg, rgba(8, 37, 30, .94) 0%, rgba(8, 37, 30, .82) 100%), url('/assets/images/backpic/back-1.webp');
            background-size: cover;
            background-position: center;
            color: #e6ede9;
            padding: 64px 0;
            margin-top: 76px;
        }

        .cta-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 26px;
        }

        .cta-copy {
            max-width: 680px;
        }

        .cta-kicker {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            font-size: 13px;
            font-weight: 700;
            letter-spacing: .08em;
            color: #ccd9d2;
            margin-bottom: 10px;
        }

        .cta-kicker::before {
            content: "";
            width: 24px;
            height: 2px;
            background: var(--color-gold);
            display: inline-block;
        }

        .cta-copy h2 {
            font-size: clamp(24px, 3vw, 34px);
            line-height: 1.25;
            color: #fff;
            font-weight: 800;
            margin-bottom: 12px;
        }

        .cta-copy p {
            font-size: 15px;
            color: #cbd7d1;
            margin: 0;
        }

        .cta-actions {
            flex-shrink: 0;
        }

        .missing-panel {
            text-align: center;
            padding: 90px 20px;
            background: var(--color-panel);
            border: 1px solid var(--color-border);
            border-radius: 12px;
            max-width: 700px;
            margin: 40px auto;
        }

        .missing-code {
            display: inline-block;
            font-size: 14px;
            font-weight: 800;
            letter-spacing: .16em;
            color: var(--color-accent);
            background: rgba(241, 96, 63, .08);
            border-radius: var(--radius-full);
            padding: 5px 16px;
            margin-bottom: 18px;
        }

        .missing-panel h1 {
            font-size: clamp(24px, 3vw, 36px);
            color: var(--color-ink);
            font-weight: 800;
            margin-bottom: 12px;
        }

        .missing-panel p {
            color: var(--color-body);
            max-width: 440px;
            margin: 0 auto 26px;
        }

        .site-footer {
            background: var(--color-brand-deep);
            color: #d6e2da;
            padding: 66px 0 0;
            margin-top: 0;
        }

        .footer-top {
            display: flex;
            flex-wrap: wrap;
            gap: 32px 48px;
            padding-bottom: 42px;
            border-bottom: 1px solid rgba(220, 230, 224, .14);
        }

        .footer-brand {
            flex: 2 1 280px;
            min-width: 280px;
        }

        .footer-title {
            display: flex;
            align-items: baseline;
            gap: 8px;
            font-size: 19px;
            color: #fff;
            font-weight: 700;
            margin-bottom: 14px;
        }

        .footer-title span {
            font-size: 12px;
            color: var(--color-gold);
            font-weight: 600;
        }

        .footer-brand p {
            color: #aabab2;
            font-size: 14px;
            line-height: 1.8;
            max-width: 360px;
            margin: 0;
        }

        .footer-col {
            flex: 1 1 180px;
            min-width: 160px;
        }

        .footer-title-row {
            font-size: 13px;
            letter-spacing: .08em;
            color: #e7ece9;
            font-weight: 600;
            margin-bottom: 18px;
        }

        .footer-title-row::before {
            content: "";
            display: inline-block;
            width: 8px;
            height: 8px;
            background: var(--color-gold);
            margin-right: 8px;
            vertical-align: 1px;
        }

        .footer-col ul {
            display: grid;
            gap: 10px;
        }

        .footer-col a {
            color: #b7c6bf;
            font-size: 14px;
        }

        .footer-col a:hover {
            color: #fff;
        }

        .footer-bottom {
            padding: 22px 0 26px;
        }

        .footer-bottom-inner {
            display: flex;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 6px 18px;
            font-size: 13px;
            color: #9dadA5;
        }

        .footer-safe {
            margin-top: 12px;
            font-size: 12.5px;
            color: #81948b;
            line-height: 1.7;
            max-width: 860px;
        }

        .article-page :focus-visible,
        .site-header :focus-visible,
        .site-footer :focus-visible {
            outline: 2px solid var(--focus-outline);
            outline-offset: 3px;
        }

        @media (max-width: 1023px) {
            .large-8 {
                width: 66.6667%;
                max-width: 66.6667%;
            }

            .large-4 {
                width: 33.3333%;
                max-width: 33.3333%;
            }

            .article-body {
                font-size: 16px;
            }
        }

        @media (max-width: 899px) {
            .large-8,
            .large-4 {
                width: 100%;
                max-width: 100%;
            }

            .article-sidebar {
                position: static;
                padding-left: 0;
                margin-top: 34px;
            }

            .article-sidebar .side-card:first-child {
                display: block;
            }
        }

        @media (max-width: 767px) {
            :root {
                --section-space: 56px;
            }

            .site-header {
                height: 62px;
            }

            .brand-sub {
                display: none;
            }

            .main-nav {
                position: absolute;
                top: 62px;
                right: 0;
                left: 0;
                background: var(--color-panel);
                border-bottom: 1px solid var(--color-border);
                height: 0;
                overflow: hidden;
                transition: height .3s ease-out;
            }

            .main-nav.open {
                height: auto;
                box-shadow: 0 20px 30px rgba(8, 37, 30, .1);
            }

            .nav-list {
                flex-direction: column;
                align-items: stretch;
                gap: 0;
                padding: 14px 24px 20px;
            }

            .nav-link {
                display: block;
                padding: 14px 4px;
                color: var(--color-brand);
                border-bottom: 1px solid #eee9e2;
            }

            .nav-toggle {
                display: inline-flex;
            }

            .article-wrap {
                padding: 30px 0 40px;
            }

            .breadcrumb {
                margin-bottom: 20px;
            }

            .post-title {
                font-size: 30px;
                line-height: 1.3;
            }

            .article-body {
                font-size: 16px;
                line-height: 1.85;
            }

            .article-footer-nav {
                gap: 10px;
            }

            .cta-band {
                padding: 46px 0;
                margin-top: 40px;
            }

            .cta-inner {
                text-align: left;
            }

            .btn {
                width: auto;
                min-height: 44px;
                padding: 0 20px;
            }
        }

        @media (max-width: 480px) {
            .post-category {
                font-size: 12px;
                padding: 4px 12px;
            }

            .post-title {
                font-size: 24px;
                margin-bottom: 12px;
            }

            .post-meta {
                font-size: 12.5px;
                gap: 6px 12px;
            }

            .article-body {
                font-size: 15.5px;
                line-height: 1.85;
            }

            .article-body h2 {
                font-size: 22px;
            }

            .btn {
                font-size: 14px;
            }

            .footer-title {
                font-size: 18px;
            }
        }

        @media (prefers-reduced-motion: reduce) {
            *,
            *::before,
            *::after {
                scroll-behavior: auto !important;
                transition: none !important;
                animation: none !important;
            }
        }

/* roulang page: category1 */
:root {
  --color-ink: rgba(23, 33, 29, 1);
  --color-body: rgba(63, 76, 70, 1);
  --color-muted: rgba(132, 142, 137, 1);
  --color-paper: rgba(245, 242, 237, 1);
  --color-panel: rgba(255, 255, 255, 1);
  --color-brand: rgba(13, 59, 46, 1);
  --color-brand-deep: rgba(8, 37, 30, 1);
  --color-brand-soft: rgba(223, 232, 226, 1);
  --color-accent: rgba(241, 96, 63, 1);
  --color-gold: rgba(187, 138, 90, 1);
  --color-border: rgba(222, 216, 207, 1);
  --focus-outline: rgba(236, 160, 111, 1);
  --font-sans: "PingFang SC", "Microsoft YaHei", "Noto Sans CJK SC", "Helvetica Neue", sans-serif;
  --nav-h: 72px;
  --radius: 8px;
  --shadow-sm: 0 1px 2px rgba(17, 43, 34, .05);
  --shadow-md: 0 8px 18px rgba(17, 43, 34, .06);
  --shadow-lg: 0 12px 30px rgba(17, 43, 34, .08);
}

*, *::before, *::after {
  box-sizing: border-box;
}

html {
  scroll-padding-top: 92px;
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background: var(--color-paper);
  color: var(--color-body);
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.75;
  font-variant-numeric: tabular-nums;
  -webkit-font-smoothing: antialiased;
}

img {
  max-width: 100%;
  height: auto;
  display: block;
}

a {
  color: inherit;
  text-decoration: none;
  transition: color .2s ease-out;
}

ul {
  margin: 0;
  padding: 0;
  list-style: none;
}

button {
  font: inherit;
  cursor: pointer;
}

.container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
}

h1, h2, h3, h4 {
  margin: 0;
  color: var(--color-ink);
  font-weight: 800;
  line-height: 1.25;
}

h1 {
  letter-spacing: -0.01em;
}

h2 {
  font-size: clamp(24px, 3vw, 36px);
  line-height: 1.2;
}

h3 {
  font-size: 20px;
  line-height: 1.35;
}

p {
  margin: 0;
}

.section-space {
  padding: 80px 0;
}

a:focus-visible,
button:focus-visible {
  outline: 2px solid var(--focus-outline);
  outline-offset: 3px;
  border-radius: 4px;
}

/* Header */
.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(245, 242, 237, .96);
  border-bottom: 1px solid var(--color-border);
  backdrop-filter: none;
}

.header-inner {
  height: var(--nav-h);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  min-width: 0;
}

.brand-mark {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 42px;
  height: 42px;
  border-radius: 10px;
  background: var(--color-brand);
  color: #fff;
  font-size: 16px;
  font-weight: 800;
  letter-spacing: .02em;
}

.brand-text {
  color: var(--color-brand);
  font-size: 18px;
  font-weight: 800;
  white-space: nowrap;
}

.brand-sub {
  color: var(--color-muted);
  font-size: 13px;
  border-left: 1px solid var(--color-border);
  padding-left: 10px;
  letter-spacing: .04em;
  white-space: nowrap;
}

.main-nav {
  display: flex;
  align-items: center;
}

.nav-list {
  display: flex;
  align-items: center;
  gap: 32px;
}

.nav-link {
  position: relative;
  display: inline-block;
  padding: 8px 0;
  color: var(--color-body);
  font-size: 15px;
  font-weight: 500;
  line-height: 1.4;
  transition: color .2s ease-out;
}

.nav-link::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: 2px;
  width: 0;
  height: 2px;
  background: var(--color-gold);
  transition: width .3s ease-out;
}

.nav-link:hover::after {
  width: 100%;
}

.nav-link:hover {
  color: var(--color-brand);
}

.nav-link.active {
  color: var(--color-brand);
  font-weight: 700;
}

.nav-link.active::after {
  width: 100%;
  background: var(--color-gold);
}

.nav-toggle {
  display: none;
  width: 42px;
  height: 42px;
  border: 0;
  background: transparent;
  padding: 10px;
  border-radius: 6px;
}

.nav-toggle span {
  display: block;
  height: 2px;
  margin: 4px 0;
  background: var(--color-brand);
  transition: transform .25s ease-out, opacity .25s ease-out;
}

.nav-toggle.is-active span:nth-child(1) {
  transform: translateY(6px) rotate(45deg);
}

.nav-toggle.is-active span:nth-child(2) {
  opacity: 0;
}

.nav-toggle.is-active span:nth-child(3) {
  transform: translateY(-6px) rotate(-45deg);
}

/* Breadcrumb */
.crumb {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  align-items: center;
  font-size: 13px;
  color: var(--color-muted);
}

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

/* Category hero */
.cat-hero {
  position: relative;
  background: var(--color-brand-deep);
  color: rgba(214, 226, 218, .9);
  overflow: hidden;
  padding: 76px 0 72px;
}

.cat-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image: radial-gradient(rgba(255, 255, 255, .12) 1px, transparent 1px);
  background-size: 24px 24px;
  opacity: .28;
  pointer-events: none;
}

.cat-hero-grid {
  position: relative;
  z-index: 1;
  display: flex;
  align-items: center;
  gap: 56px;
}

.cat-hero-copy {
  flex: 1.2;
  min-width: 0;
}

.cat-hero-kicker {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: #D9C2A9;
  font-size: 14px;
  font-weight: 600;
  letter-spacing: .1em;
  margin-bottom: 16px;
}

.cat-hero-kicker::before {
  content: "";
  width: 18px;
  height: 4px;
  background: var(--color-gold);
  border-radius: 2px;
}

.cat-hero h1 {
  color: #F4F0E9;
  font-size: clamp(32px, 4.6vw, 52px);
  line-height: 1.14;
  max-width: 760px;
  margin-top: 8px;
}

.cat-hero-lead {
  color: #C4D2CB;
  font-size: 17px;
  line-height: 1.8;
  max-width: 660px;
  margin-top: 18px;
}

.cat-hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  margin-top: 28px;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border: 0;
  border-radius: 8px;
  height: 48px;
  padding: 0 28px;
  font-size: 15px;
  font-weight: 600;
  line-height: 1;
  white-space: nowrap;
  transition: background .25s ease-out, border-color .25s ease-out, transform .25s ease-out, box-shadow .25s ease-out;
}

.btn span.arrow {
  display: inline-block;
  margin-left: 2px;
  transition: transform .25s ease-out;
}

.btn-primary {
  background: var(--color-accent);
  color: #fff;
}

.btn-primary:hover {
  background: var(--color-brand);
  transform: translateY(-1px);
  box-shadow: var(--shadow-md);
}

.btn-primary:hover span.arrow {
  transform: translateX(4px);
}

.btn-secondary {
  background: transparent;
  color: #E9E1D6;
  box-shadow: inset 0 0 0 1px rgba(255, 255, 255, .55);
}

.btn-secondary:hover {
  background: rgba(255, 255, 255, .08);
  color: #fff;
  transform: translateY(-1px);
}

.hero-badges {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 26px;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 13px;
  color: #BED0C6;
  padding: 6px 12px;
  border: 1px solid rgba(214, 226, 218, .2);
  border-radius: 999px;
  background: rgba(255, 255, 255, .03);
}

.hero-badge::before {
  content: "";
  width: 5px;
  height: 5px;
  border-radius: 50%;
  background: var(--color-gold);
}

.cat-hero-media {
  flex: .8;
  display: flex;
  flex-direction: column;
  align-items: center;
}

.hero-media-frame {
  width: 280px;
  height: 280px;
  position: relative;
}

.hero-media-frame::before {
  content: "";
  position: absolute;
  inset: -12px;
  border: 1px solid rgba(255, 255, 255, .22);
  border-radius: 50%;
  z-index: 0;
}

.hero-media-frame img {
  position: relative;
  width: 100%;
  height: 100%;
  object-fit: cover;
  border-radius: 50%;
  border: 6px solid rgba(255, 255, 255, .06);
  z-index: 1;
}

.cat-hero-caption {
  margin-top: 20px;
  font-size: 12.5px;
  color: rgba(214, 226, 218, .62);
  text-align: center;
  letter-spacing: .02em;
}

/* Category intro section */
.cat-intro {
  border-bottom: 1px solid var(--color-border);
  padding: 72px 0;
}

.cat-intro-grid {
  display: grid;
  grid-template-columns: minmax(0, .45fr) minmax(0, 1fr);
  gap: 48px;
  align-items: start;
}

.eyebrow {
  font-size: 14px;
  font-weight: 600;
  letter-spacing: .08em;
  color: var(--color-gold);
  text-transform: uppercase;
}

.eyebrow + h2 {
  margin-top: 10px;
}

.eyebrow + h3 {
  margin-top: 10px;
}

.intro-copy p {
  font-size: 17px;
  line-height: 1.85;
  color: var(--color-body);
  max-width: 720px;
}

.intro-copy p + p {
  margin-top: 18px;
}

.intro-note {
  margin-top: 26px;
  padding: 16px 18px;
  border-left: 4px solid var(--color-gold);
  background: var(--color-brand-soft);
  color: var(--color-body);
  font-size: 15px;
  border-radius: 0 8px 8px 0;
}

/* Scenarios / topics */
.topics-block {
  padding: 78px 0;
}

.topics-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 24px;
  margin-top: 36px;
}

.topic-card {
  background: var(--color-panel);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 26px 24px;
  transition: transform .25s ease-out, box-shadow .25s ease-out, border-color .25s ease-out;
}

.topic-card:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-lg);
  border-color: var(--color-gold);
}

.topic-index {
  font-size: 15px;
  font-weight: 800;
  color: var(--color-brand);
  display: flex;
  align-items: center;
  gap: 10px;
}

.topic-index::after {
  content: "";
  width: 18px;
  height: 2px;
  background: var(--color-gold);
}

.topic-card h3 {
  font-size: 18px;
  margin-top: 18px;
  color: var(--color-ink);
}

.topic-card p {
  font-size: 15px;
  margin-top: 10px;
  color: var(--color-body);
  line-height: 1.7;
}

/* Steps */
.steps-block {
  background: var(--color-panel);
  border-top: 1px solid var(--color-border);
  border-bottom: 1px solid var(--color-border);
  padding: 80px 0;
}

.steps-head {
  text-align: center;
  max-width: 760px;
  margin: 0 auto 38px;
}

.steps-head .eyebrow {
  text-transform: none;
}

.steps-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 32px;
  counter-reset: step;
}

.step-item {
  position: relative;
  padding: 28px 24px 26px;
  border: 1px solid var(--color-border);
  border-radius: 10px;
  background: var(--color-paper);
  transition: transform .25s ease-out, box-shadow .25s ease-out;
}

.step-item:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-md);
}

.step-num {
  display: block;
  font-size: 44px;
  font-weight: 800;
  color: transparent;
  -webkit-text-stroke: 1px rgba(187, 138, 90, .55);
  line-height: 1;
  font-variant-numeric: tabular-nums;
}

.step-item h3 {
  margin-top: 18px;
}

.step-item p {
  margin-top: 10px;
  color: var(--color-body);
  font-size: 15px;
  line-height: 1.75;
}

@media (min-width: 768px) {
  .step-item:not(:last-child)::after {
    content: "";
    position: absolute;
    top: 46px;
    right: -26px;
    width: 22px;
    height: 2px;
    border-top: 1px dashed var(--color-gold);
  }
}

/* Static reading cards */
.reading-block {
  padding: 84px 0;
}

.reading-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 24px;
  margin-top: 40px;
}

.read-card {
  display: flex;
  align-items: stretch;
  background: var(--color-panel);
  border: 1px solid var(--color-border);
  border-radius: 10px;
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  transition: transform .25s ease-out, box-shadow .25s ease-out, border-color .25s ease-out;
  text-align: left;
}

.read-card:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-lg);
  border-color: var(--color-gold);
}

.read-card-media {
  position: relative;
  width: 170px;
  min-height: 220px;
  flex: 0 0 170px;
  background: var(--color-brand-soft);
}

.read-card-media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  position: absolute;
  inset: 0;
}

.read-card-tag {
  position: absolute;
  top: 12px;
  left: 12px;
  z-index: 2;
  font-size: 12px;
  font-weight: 600;
  color: var(--color-brand);
  background: rgba(223, 232, 226, .92);
  border-radius: 999px;
  padding: 4px 10px;
  letter-spacing: .02em;
}

.read-card-body {
  flex: 1;
  min-width: 0;
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: 20px 22px;
}

.read-card-title {
  display: block;
  font-size: 18px;
  font-weight: 700;
  color: var(--color-ink);
  line-height: 1.45;
  overflow: hidden;
  text-overflow: ellipsis;
  transition: color .22s ease-out;
}

.read-card:hover .read-card-title {
  color: var(--color-brand);
}

.read-card-desc {
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
  margin-top: 10px;
  font-size: 15px;
  line-height: 1.7;
  color: var(--color-body);
}

.read-card-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 16px;
  font-size: 12.5px;
  color: var(--color-muted);
}

/* FAQ */
.faq-section {
  padding: 84px 0;
  background: var(--color-panel);
  border-top: 1px solid var(--color-border);
}

.faq-head {
  max-width: 760px;
  margin-bottom: 28px;
}

.cat-faq {
  border-top: 1px solid var(--color-border);
}

.cat-faq .accordion-item {
  border-bottom: 1px solid var(--color-border);
}

.accordion-title {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  width: 100%;
  padding: 22px 48px 22px 20px;
  text-align: left;
  background: transparent;
  border: 0;
  color: var(--color-ink);
  font-size: 17px;
  line-height: 1.5;
  font-weight: 500;
  border-radius: 0;
  transition: color .2s ease-out, background .2s ease-out;
}

.accordion-title:hover {
  background: rgba(223, 232, 226, .35);
}

.cat-faq .accordion-item.is-active .accordion-title {
  color: var(--color-brand);
  font-weight: 600;
}

.cat-faq .accordion-item.is-active .accordion-title::before {
  content: "";
  position: absolute;
  left: 0;
  top: 18px;
  bottom: 18px;
  width: 4px;
  border-radius: 2px;
  background: var(--color-gold);
}

.acc-icon {
  position: absolute;
  right: 2px;
  top: 50%;
  width: 28px;
  height: 28px;
  transform: translateY(-50%);
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  background: var(--color-brand-soft);
  transition: transform .25s ease-out, background .25s ease-out;
}

.acc-icon::before,
.acc-icon::after {
  content: "";
  position: absolute;
  background: var(--color-brand);
  border-radius: 1px;
  transition: transform .25s ease-out;
}

.acc-icon::before {
  width: 12px;
  height: 2px;
}

.acc-icon::after {
  width: 2px;
  height: 12px;
}

.accordion-item.is-active .acc-icon {
  background: var(--color-brand-soft);
  transform: translateY(-50%) rotate(180deg);
}

.accordion-item.is-active .acc-icon::after {
  transform: scaleY(0);
}

.accordion-content {
  padding: 2px 48px 22px 20px;
}

.accordion-content p {
  font-size: 15.5px;
  line-height: 1.8;
  color: var(--color-body);
  max-width: 860px;
}

/* CTA */
.cat-cta {
  background: var(--color-brand-deep);
  color: #D6E2DA;
  text-align: center;
  padding: 62px 0;
}

.cat-cta h2 {
  color: #F3EFE8;
  font-size: clamp(24px, 3vw, 34px);
  max-width: 700px;
  margin: 0 auto;
}

.cat-cta p {
  max-width: 620px;
  margin: 16px auto 0;
  color: #C4D2CB;
  font-size: 16px;
}

.cat-cta .btn-primary {
  margin-top: 28px;
}

/* Footer */
.site-footer {
  background: var(--color-brand-deep);
  color: #D6E2DA;
  padding: 72px 0 30px;
}

.footer-top {
  display: grid;
  grid-template-columns: 1.2fr .75fr .75fr .75fr;
  gap: 36px;
}

.footer-title {
  color: #F4EFE8;
}

.footer-title strong {
  font-size: 20px;
  font-weight: 800;
}

.footer-title span {
  display: inline-block;
  margin-left: 6px;
  color: var(--color-gold);
  font-size: 14px;
}

.footer-brand>p {
  margin-top: 16px;
  font-size: 14px;
  line-height: 1.8;
  color: #B8C8BF;
  max-width: 320px;
}

.footer-col {
  min-width: 0;
}

.footer-title-row {
  color: #F0EAE0;
  font-size: 13px;
  letter-spacing: .14em;
  font-weight: 600;
  position: relative;
  padding-left: 12px;
  margin-bottom: 16px;
}

.footer-title-row::before {
  content: "";
  position: absolute;
  left: 0;
  top: 4px;
  width: 4px;
  height: 14px;
  background: var(--color-gold);
  border-radius: 2px;
}

.footer-col ul {
  display: grid;
  gap: 10px;
}

.footer-col a {
  color: #B8C8BF;
  font-size: 14px;
  transition: color .2s ease-out;
}

.footer-col a:hover {
  color: #fff;
}

.footer-bottom {
  margin-top: 44px;
  padding-top: 28px;
  border-top: 1px solid rgba(214, 226, 218, .12);
}

.footer-bottom-inner {
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 8px 20px;
  font-size: 13px;
  color: #ADBBB2;
}

.footer-safe {
  margin-top: 12px;
  font-size: 12.5px;
  line-height: 1.7;
  color: rgba(214, 226, 218, .5);
}

/* Responsive */
@media (max-width: 1023px) {
  .cat-hero-media {
    display: none;
  }

  .footer-top {
    grid-template-columns: 1fr 1fr;
  }
}

@media (max-width: 767px) {
  .section-space {
    padding: 52px 0;
  }

  .header-inner {
    height: 62px;
  }

  .brand-text {
    font-size: 16px;
  }

  .brand-sub {
    display: none;
  }

  .nav-toggle {
    display: flex;
    flex-direction: column;
    justify-content: center;
    gap: 0;
  }

  .main-nav {
    display: none;
    position: absolute;
    top: 62px;
    left: 0;
    right: 0;
    background: #fff;
    border-bottom: 1px solid var(--color-border);
    box-shadow: 0 12px 24px rgba(17, 43, 34, .06);
  }

  .main-nav.is-open {
    display: block;
  }

  .nav-list {
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    padding: 10px 24px 16px;
  }

  .nav-link {
    padding: 13px 0;
    border-bottom: 1px solid #F0ECE4;
    font-size: 16px;
  }

  .nav-link::after {
    top: 50%;
    bottom: auto;
    left: 8px;
    width: 3px;
    height: 0;
    transform: translateY(-50%);
  }

  .nav-link.active::after,
  .nav-link:hover::after {
    width: 3px;
    height: 16px;
  }

  .cat-hero {
    padding: 56px 0 52px;
  }

  .cat-hero h1 {
    font-size: 32px;
  }

  .cat-hero-actions .btn {
    width: 100%;
  }

  .hero-badge {
    font-size: 12px;
  }

  .cat-intro, .topics-block, .steps-block, .reading-block, .faq-section {
    padding: 52px 0;
  }

  .cat-intro-grid {
    grid-template-columns: 1fr;
    gap: 28px;
  }

  .tools-grid, .topics-grid, .steps-grid, .reading-grid {
    grid-template-columns: 1fr;
  }

  .topic-card h3,
  .step-item h3 {
    font-size: 17px;
  }

  .read-card {
    flex-direction: column;
  }

  .read-card-media {
    width: 100%;
    flex-basis: auto;
    height: 0;
    padding-top: 54%;
    min-height: 0;
    position: relative;
  }

  .read-card-media img {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
  }

  .accordion-title {
    font-size: 15px;
    padding: 18px 42px 18px 16px;
  }

  .accordion-content {
    padding: 0 16px 18px 16px;
  }

  .footer-top {
    grid-template-columns: 1fr;
  }

  .footer-bottom-inner {
    flex-direction: column;
  }
}

@media (min-width: 768px) and (max-width: 1023px) {
  .topics-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .steps-grid {
    grid-template-columns: 1fr;
    gap: 24px;
  }

  .step-item:not(:last-child)::after {
    display: none;
  }
}

@media (max-width: 580px) {
  .topics-grid {
    grid-template-columns: 1fr;
  }

  .steps-grid {
    grid-template-columns: 1fr;
  }

  .footer-top {
    grid-template-columns: 1fr;
  }
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    transition-duration: 0.01ms !important;
  }
}

/* roulang page: category2 */
:root {
  --color-ink: #17211D;
  --color-body: #3F4C46;
  --color-muted: #848E89;
  --color-paper: #F5F2ED;
  --color-panel: #FFFFFF;
  --color-brand: #0D3B2E;
  --color-brand-deep: #08251E;
  --color-brand-soft: #DFE8E2;
  --color-accent: #F1603F;
  --color-gold: #BB8A5A;
  --color-border: #DED8CF;
  --color-border-soft: #E9E2D8;
  --focus-outline: #ECA06F;
  --radius-sm: 6px;
  --radius: 8px;
  --radius-lg: 14px;
  --radius-round: 999px;
  --shadow-1: 0 1px 2px rgba(17,43,34,.05);
  --shadow-2: 0 8px 24px rgba(17,43,34,.07);
  --shadow-3: 0 12px 30px rgba(17,43,34,.08);
  --container-width: 1200px;
  --space-section: 88px;
  --space-section-sm: 56px;
  --header-h: 72px;
  --ease: cubic-bezier(.25,.46,.45,.94);
}

* {
  box-sizing: border-box;
}
html {
  scroll-padding-top: 100px;
  scroll-behavior: smooth;
}
body {
  margin: 0;
  background: var(--color-paper);
  color: var(--color-ink);
  font-family: "PingFang SC", "Microsoft YaHei", "Noto Sans CJK SC", sans-serif;
  font-size: 16px;
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}
img {
  display: block;
  max-width: 100%;
}
a {
  color: inherit;
  text-decoration: none;
}
button,
input,
textarea,
select {
  font-family: inherit;
  font-size: inherit;
  color: inherit;
}
button {
  cursor: pointer;
}
a:focus-visible,
button:focus-visible,
input:focus-visible,
textarea:focus-visible {
  outline: 2px solid var(--focus-outline);
  outline-offset: 2px;
}
::selection {
  background: rgba(241,96,63,.18);
}
.container {
  width: 100%;
  max-width: var(--container-width);
  margin: 0 auto;
  padding-left: 24px;
  padding-right: 24px;
}
.grid-container {
  max-width: var(--container-width);
}

/* 顶部导航 */
.site-header {
  position: sticky;
  top: 0;
  z-index: 80;
  height: var(--header-h);
  background: rgba(245,242,237,.96);
  border-bottom: 1px solid var(--color-border-soft);
  transition: box-shadow .3s var(--ease);
}
.site-header.scrolled {
  box-shadow: var(--shadow-1);
}
.header-inner {
  height: var(--header-h);
  display: flex;
  align-items: center;
  gap: 28px;
}
.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  flex-shrink: 0;
}
.brand-mark {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 34px;
  height: 34px;
  background: var(--color-brand);
  color: #F7F2E8;
  border-radius: 8px;
  font-size: 13px;
  font-weight: 800;
  letter-spacing: .05em;
}
.brand-text {
  color: var(--color-brand);
  font-size: 18px;
  font-weight: 800;
  letter-spacing: -.01em;
  line-height: 1.2;
}
.brand-sub {
  display: none;
  color: var(--color-muted);
  font-size: 12px;
  margin-top: 2px;
}
.main-nav {
  margin-left: auto;
}
.nav-list {
  display: flex;
  align-items: center;
  gap: 38px;
  margin: 0;
  padding: 0;
}
.nav-link {
  position: relative;
  display: inline-flex;
  align-items: center;
  min-height: var(--header-h);
  padding: 0 2px 2px;
  font-size: 15px;
  color: var(--color-body);
  font-weight: 600;
  transition: color .25s var(--ease);
}
.nav-link::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: 14px;
  width: 0;
  height: 2px;
  background: var(--color-gold);
  transition: width .3s var(--ease);
}
.nav-link:hover,
.nav-link.active {
  color: var(--color-brand);
}
.nav-link:hover::after,
.nav-link.active::after {
  width: 100%;
}
.nav-link.active {
  font-weight: 700;
}
.nav-toggle {
  display: none;
  margin-left: auto;
  width: 42px;
  height: 42px;
  padding: 9px;
  background: transparent;
  border: 0;
  justify-content: center;
  align-items: center;
  flex-direction: column;
  gap: 4px;
  border-radius: 8px;
}
.nav-toggle span {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--color-brand);
  border-radius: 999px;
  transition: transform .25s var(--ease), opacity .25s var(--ease);
}

/* 分类页头图 */
.page-banner {
  position: relative;
  background-color: var(--color-brand-deep);
  background-image:
    linear-gradient(75deg, rgba(8,37,30,.96) 0%, rgba(13,59,46,.82) 58%, rgba(13,59,46,.7) 100%),
    url("/assets/images/backpic/back-1.webp");
  background-size: cover;
  background-position: center;
  padding: clamp(48px, 7vw, 84px) 0 60px;
  color: #F6F1E8;
  overflow: hidden;
}
.banner-container {
  position: relative;
  z-index: 2;
  align-items: center;
}
.breadcrumb {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 22px;
  font-size: 13px;
  color: rgba(214,226,218,.78);
}
.breadcrumb a {
  color: rgba(214,226,218,.9);
  transition: color .2s var(--ease);
}
.breadcrumb a:hover {
  color: #fff;
}
.crumb-icon {
  opacity: .55;
}
.page-title {
  margin: 0 0 14px;
  max-width: 840px;
  font-size: clamp(32px, 5vw, 52px);
  line-height: 1.18;
  letter-spacing: -.02em;
  color: #FFF9F0;
  font-weight: 800;
}
.page-lead {
  max-width: 680px;
  margin: 0 0 22px;
  font-size: 16px;
  line-height: 1.75;
  color: rgba(214,226,218,.9);
}
.banner-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}
.banner-tags span {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 6px 12px;
  background: rgba(255,255,255,.08);
  border: 1px solid rgba(255,255,255,.16);
  border-radius: 999px;
  color: #E4E9DF;
  font-size: 13px;
  font-weight: 600;
  backdrop-filter: blur(3px);
}
.banner-tags span::before {
  content: "";
  width: 5px;
  height: 5px;
  border-radius: 50%;
  background: var(--color-accent);
}
.banner-aside {
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  gap: 14px;
}
.banner-note-card {
  width: min(300px, 100%);
  border-left: 2px solid var(--color-gold);
  background: rgba(255,255,255,.06);
  border-radius: 4px 12px 12px 4px;
  padding: 18px 20px;
  color: rgba(230,238,232,.92);
  font-size: 14px;
  line-height: 1.7;
}
.banner-note-card strong {
  display: block;
  color: #FFF8EE;
  font-size: 15px;
  margin-bottom: 4px;
}

/* 页面主体 */
.site-main {
  padding: var(--space-section) 0 72px;
}
.category-two-wrap {
  align-items: flex-start;
}
.left-dir-col {
  padding-bottom: 32px;
}
.aside-col-sticky {
  position: sticky;
  top: 104px;
}

/* 内容组 */
.guide-section {
  border-top: 1px solid var(--color-border-soft);
  padding: 30px 0 26px;
  scroll-margin-top: 110px;
}
.guide-section:first-child {
  border-top: 0;
  padding-top: 0;
}
.guide-section:last-child {
  border-bottom: 1px solid var(--color-border-soft);
}
.group-head {
  display: flex;
  align-items: baseline;
  gap: 14px;
  margin-bottom: 4px;
}
.group-no {
  display: inline-flex;
  min-width: 40px;
  font-size: 20px;
  font-weight: 800;
  color: var(--color-gold);
  font-variant-numeric: tabular-nums;
  letter-spacing: -.02em;
}
.group-head h2 {
  margin: 0;
  font-size: clamp(21px, 2.6vw, 28px);
  line-height: 1.3;
  letter-spacing: -.01em;
  color: var(--color-brand);
  font-weight: 800;
}
.group-desc {
  margin: 4px 0 14px;
  padding-left: 54px;
  font-size: 14px;
  color: var(--color-muted);
  max-width: 620px;
}

/* 信息单行 */
.entry-row {
  display: grid;
  grid-template-columns: 44px minmax(0, 1fr) 34px;
  gap: 14px;
  align-items: flex-start;
  padding: 21px 8px 21px 4px;
  border-bottom: 1px solid var(--color-border-soft);
  transition: transform .28s var(--ease), background .28s var(--ease);
  border-radius: 8px;
}
.entry-row:last-child {
  border-bottom: 0;
}
.entry-row:hover {
  transform: translateX(8px);
  background: rgba(223,232,226,.42);
}
.entry-num {
  font-size: 20px;
  font-weight: 800;
  color: var(--color-brand);
  line-height: 1.5;
  font-variant-numeric: tabular-nums;
  opacity: .85;
}
.entry-title {
  display: block;
  font-size: 17px;
  font-weight: 700;
  color: var(--color-ink);
  line-height: 1.45;
  margin-bottom: 6px;
}
.entry-summary {
  margin: 0;
  font-size: 15px;
  line-height: 1.72;
  color: var(--color-body);
}
.entry-more {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 30px;
  height: 30px;
  margin-top: 2px;
  border: 1px solid var(--color-border);
  border-radius: 50%;
  color: var(--color-accent);
  background: var(--color-panel);
  font-size: 14px;
  font-weight: 800;
  transition: background .25s var(--ease), color .25s var(--ease), transform .25s var(--ease), border-color .25s var(--ease);
}
.entry-row:hover .entry-more {
  background: var(--color-brand);
  color: #fff;
  border-color: var(--color-brand);
  transform: rotate(45deg);
}

/* 右侧卡片 */
.side-directory {
  background: var(--color-panel);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-1);
  margin-bottom: 32px;
}
.side-cover {
  width: 100%;
  aspect-ratio: 16 / 9;
  object-fit: cover;
  border-bottom: 1px solid var(--color-border-soft);
}
.side-card-body {
  padding: 22px 22px 24px;
}
.side-kicker {
  display: flex;
  align-items: center;
  gap: 6px;
  margin: 0 0 8px;
  font-size: 12px;
  letter-spacing: .08em;
  color: var(--color-accent);
  font-weight: 700;
}
.side-kicker::before {
  content: "";
  display: block;
  width: 18px;
  height: 2px;
  background: var(--color-gold);
  border-radius: 999px;
}
.side-title {
  margin: 0 0 16px;
  color: var(--color-brand);
  font-size: 21px;
  font-weight: 800;
  line-height: 1.4;
}
.side-nav {
  margin: 0;
  padding: 0;
  list-style: none;
}
.side-nav li {
  border-bottom: 1px solid var(--color-border-soft);
}
.side-nav li:last-child {
  border-bottom: 0;
}
.side-nav a {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 12px 10px;
  font-size: 15px;
  color: var(--color-body);
  border-radius: var(--radius-sm);
  transition: background .22s var(--ease), color .22s var(--ease), transform .22s var(--ease);
}
.side-nav a span {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--color-gold);
  flex-shrink: 0;
  transition: opacity .22s var(--ease);
}
.side-nav a:hover {
  background: var(--color-brand);
  color: #fff;
  transform: translateX(3px);
}
.side-nav a:hover span {
  background: var(--color-accent);
}
.side-divider {
  height: 1px;
  background: var(--color-border-soft);
  margin: 20px 0;
}
.side-tag-label {
  margin: 0 0 12px;
  font-size: 13px;
  font-weight: 700;
  color: var(--color-brand);
  letter-spacing: .04em;
}
.tag-cloud {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}
.tag-item {
  display: inline-flex;
  padding: 6px 11px;
  background: var(--color-brand-soft);
  color: var(--color-brand);
  border-radius: 999px;
  font-size: 13px;
  font-weight: 600;
  transition: background .22s var(--ease), color .22s var(--ease);
}
.tag-item:hover {
  background: var(--color-brand);
  color: #fff;
}
.side-tip {
  margin-top: 18px;
  padding: 15px 16px;
  background: linear-gradient(135deg, rgba(223,232,226,.75), rgba(245,242,237,.95));
  border-radius: 10px;
  font-size: 13px;
  line-height: 1.7;
  color: var(--color-body);
}
.side-tip strong {
  color: var(--color-brand);
}

/* 建议先读 */
.recommended-section {
  padding: 36px 0 16px;
  border-top: 1px solid var(--color-border-soft);
  margin-top: 32px;
}
.reco-head {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 24px;
  margin-bottom: 24px;
}
.reco-head .reco-kicker {
  color: var(--color-gold);
  font-size: 13px;
  font-weight: 800;
  letter-spacing: .08em;
}
.reco-head h2 {
  margin: 6px 0 0;
  font-size: clamp(22px, 3vw, 28px);
  color: var(--color-brand);
  font-weight: 800;
  letter-spacing: -.01em;
}
.reco-cards {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 18px;
}
.reco-card {
  position: relative;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  min-height: 190px;
  padding: 24px 22px;
  background: var(--color-panel);
  border: 1px solid var(--color-border-soft);
  border-radius: 12px;
  box-shadow: var(--shadow-1);
  transition: transform .28s var(--ease), box-shadow .28s var(--ease), border-color .28s var(--ease);
  overflow: hidden;
}
.reco-card::after {
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  width: 4px;
  height: 100%;
  background: var(--color-gold);
  opacity: 0;
  transition: opacity .28s var(--ease);
}
.reco-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-3);
  border-color: var(--color-gold);
}
.reco-card:hover::after {
  opacity: 1;
}
.reco-card-meta {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 13px;
  font-weight: 700;
  color: var(--color-accent);
  margin-bottom: 14px;
}
.reco-card h3 {
  margin: 0 0 8px;
  font-size: 18px;
  font-weight: 800;
  color: var(--color-brand);
  line-height: 1.4;
}
.reco-card p {
  margin: 0;
  color: var(--color-body);
  font-size: 14px;
  line-height: 1.7;
}
.reco-card .go-link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin-top: 16px;
  font-size: 14px;
  font-weight: 700;
  color: var(--color-brand);
  transition: color .25s var(--ease);
}
.reco-card .go-link i {
  transition: transform .25s var(--ease);
  font-style: normal;
}
.reco-card:hover .go-link {
  color: var(--color-accent);
}
.reco-card:hover .go-link i {
  transform: translateX(3px);
}

/* 底部 CTA */
.cta-narrow-wrap {
  padding: 44px 0 0;
}
.cta-band {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 32px;
  padding: 38px 42px;
  background: var(--color-brand-deep);
  background-image:
    radial-gradient(rgba(255,255,255,.045) 1px, transparent 1px);
  background-size: 22px 22px;
  border-radius: 18px;
}
.cta-copy {
  color: #DCE7DE;
  max-width: 560px;
}
.cta-copy strong {
  display: block;
  color: #FFF8EE;
  font-size: 24px;
  letter-spacing: -.01em;
  margin-bottom: 8px;
  line-height: 1.4;
}
.cta-copy p {
  margin: 0;
  font-size: 15px;
  line-height: 1.75;
  opacity: .9;
}
.cta-actions {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 14px;
  flex-shrink: 0;
}
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  min-height: 46px;
  padding: 0 26px;
  border-radius: 8px;
  font-size: 15px;
  font-weight: 700;
  border: 1px solid transparent;
  transition: background .25s var(--ease), color .25s var(--ease), border-color .25s var(--ease), box-shadow .25s var(--ease), transform .25s var(--ease);
}
.btn i {
  font-style: normal;
  transition: transform .25s var(--ease);
}
.btn-primary {
  background: var(--color-accent);
  color: #fff;
}
.btn-primary:hover {
  background: #D84E30;
  box-shadow: var(--shadow-2);
  transform: translateY(-1px);
}
.btn-primary:hover i {
  transform: translateX(4px);
}
.btn-ghost-light {
  border: 1px solid rgba(255,255,255,.5);
  color: #F2EBDC;
  background: transparent;
}
.btn-ghost-light:hover {
  background: rgba(255,255,255,.08);
  border-color: #fff;
  color: #fff;
}

/* 页脚 */
.site-footer {
  margin-top: 80px;
  background: var(--color-brand-deep);
  color: #D6E2DA;
  font-size: 14px;
}
.site-footer .container {
  padding-top: 56px;
}
.footer-top {
  display: grid;
  grid-template-columns: 2.2fr 1fr 1fr 1fr;
  gap: 40px;
  padding-bottom: 40px;
}
.footer-brand .footer-title {
  display: flex;
  align-items: baseline;
  gap: 8px;
  margin-bottom: 14px;
}
.footer-brand .footer-title strong {
  color: #FFF9EF;
  font-size: 19px;
  font-weight: 800;
  letter-spacing: -.01em;
}
.footer-brand .footer-title span {
  color: var(--color-gold);
  font-size: 13px;
  font-weight: 700;
}
.footer-brand p {
  margin: 0;
  max-width: 320px;
  font-size: 14px;
  line-height: 1.8;
  color: rgba(214,226,218,.78);
}
.footer-title-row {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 16px;
  color: #F4E9D6;
  font-weight: 700;
  font-size: 14px;
}
.footer-title-row::before {
  content: "";
  width: 6px;
  height: 6px;
  background: var(--color-gold);
  flex-shrink: 0;
}
.footer-col ul {
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 9px;
}
.footer-col a {
  display: inline-flex;
  align-items: center;
  color: rgba(214,226,218,.82);
  font-size: 14px;
  line-height: 1.7;
  transition: color .2s var(--ease), transform .2s var(--ease);
}
.footer-col a:hover {
  color: #FFF9EF;
  transform: translateX(3px);
}
.footer-bottom {
  border-top: 1px solid rgba(255,255,255,.1);
  padding: 22px 0 28px;
}
.footer-bottom-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  color: rgba(205,218,208,.8);
  font-size: 13px;
}
.footer-safe {
  margin-top: 8px;
  color: rgba(205,218,208,.55);
  font-size: 12.5px;
  line-height: 1.7;
}

@media (max-width: 1160px) {
  .banner-aside {
    display: none;
  }
  .page-banner {
    background-image:
      linear-gradient(95deg, rgba(8,37,30,.96) 0%, rgba(13,59,46,.84) 100%),
      url("/assets/images/backpic/back-1.webp");
  }
}

@media (max-width: 900px) {
  .nav-list {
    gap: 24px;
  }
  .nav-toggle {
    display: inline-flex;
  }
  .main-nav {
    position: absolute;
    top: var(--header-h);
    left: 0;
    right: 0;
    display: none;
    background: var(--color-panel);
    border-bottom: 1px solid var(--color-border);
    box-shadow: var(--shadow-2);
    padding: 8px 24px 16px;
  }
  .main-nav.open {
    display: block;
  }
  .nav-list {
    display: flex;
    flex-direction: column;
    align-items: stretch;
    gap: 0;
  }
  .nav-link {
    min-height: 0;
    padding: 15px 4px;
    border-bottom: 1px solid var(--color-border-soft);
  }
  .nav-link::after {
    bottom: 8px;
  }
  .footer-top {
    grid-template-columns: 1fr 1fr;
  }
  .reco-cards {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 767px) {
  :root {
    --space-section: 56px;
  }
  .brand-text {
    font-size: 16px;
  }
  .brand-sub {
    display: none;
  }
  .page-banner {
    padding: 40px 0 46px;
    background-image:
      linear-gradient(180deg, rgba(8,37,30,.97) 0%, rgba(13,59,46,.88) 100%),
      url("/assets/images/backpic/back-1.webp");
  }
  .page-title {
    font-size: 31px;
  }
  .site-main {
    padding-top: 48px;
  }
  .left-dir-col {
    padding-bottom: 12px;
  }
  .aside-col-sticky {
    position: static;
    margin-top: 12px;
  }
  .group-head {
    flex-wrap: wrap;
    gap: 8px;
  }
  .group-desc {
    padding-left: 0;
  }
  .entry-row {
    grid-template-columns: 34px minmax(0, 1fr);
    padding-left: 0;
  }
  .entry-more {
    display: none;
  }
  .entry-row:hover {
    transform: none;
  }
  .cta-band {
    flex-direction: column;
    align-items: flex-start;
    padding: 30px 26px;
  }
  .cta-copy strong {
    font-size: 20px;
  }
  .cta-actions {
    width: 100%;
    flex-direction: column;
    align-items: stretch;
  }
  .btn {
    width: 100%;
  }
  .footer-top {
    grid-template-columns: 1fr;
    gap: 30px;
  }
  .footer-bottom-inner {
    flex-direction: column;
    align-items: flex-start;
  }
  .reco-head {
    flex-direction: column;
    gap: 4px;
    align-items: flex-start;
  }
  .reco-cards {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 520px) {
  .container {
    padding-left: 18px;
    padding-right: 18px;
  }
  .brand-sub {
    display: none;
  }
  .page-lead {
    font-size: 15px;
  }
  .page-title {
    font-size: 28px;
  }
  .reco-card {
    min-height: 170px;
  }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: .01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: .01ms !important;
    scroll-behavior: auto !important;
  }
}