/* roulang page: index */
:root{
  --primary:#35617A;
  --primary-2:#4E7D96;
  --accent:#D89A5F;
  --accent-dark:#C98549;
  --bg-body:#F6F9FB;
  --bg-deep:#EAF1F5;
  --bg-line:#E4EDF2;
  --white:#FFFFFF;
  --text-head:#20303C;
  --text-body:#2C3E4A;
  --text-sub:#5F7180;
  --text-faint:#8B9CAB;
  --line:#DDE7ED;
  --shadow-1:0 1px 2px rgba(30,50,65,.04),0 10px 24px rgba(30,50,65,.06);
  --shadow-2:0 2px 4px rgba(30,50,65,.06),0 18px 38px rgba(30,50,65,.10);
  --shadow-3:0 8px 20px rgba(53,97,122,.12);
  --radius-card:16px;
  --radius-btn:10px;
  --sidebar-width:260px;
  --max-content:1200px;
}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans CJK SC","Source Han Sans CN",sans-serif;
  background:var(--bg-body);
  color:var(--text-body);
  line-height:1.75;
  -webkit-font-smoothing:antialiased;
}
a{color:inherit;text-decoration:none}
img{display:block;max-width:100%}
button,input,textarea{font-family:inherit;border:none;outline:none}
ul,ol{list-style:none}
a:focus-visible,button:focus-visible{outline:2px solid var(--primary);outline-offset:2px;border-radius:6px}
::selection{background:#CFE2EC;color:var(--text-head)}
.layout{min-height:100vh;width:100%;background:var(--bg-body)}

/* ===== Sidebar ===== */
.sidebar{
  position:fixed;
  top:0;left:0;bottom:0;
  width:var(--sidebar-width);
  background:var(--white);
  border-right:1px solid var(--line);
  display:flex;
  flex-direction:column;
  z-index:200;
  box-shadow:0 0 18px rgba(32,48,60,.03);
}
.brand{
  height:78px;
  display:flex;
  align-items:center;
  gap:11px;
  padding:0 22px;
  border-bottom:1px solid var(--line);
  flex-shrink:0;
}
.brand-mark{
  width:38px;height:38px;
  border-radius:12px;
  background:var(--primary);
  color:#fff;
  display:flex;
  align-items:center;
  justify-content:center;
  flex-shrink:0;
  box-shadow:0 6px 14px rgba(53,97,122,.22);
}
.brand-name{
  font-size:18px;
  font-weight:700;
  color:var(--text-head);
  line-height:1.3;
  letter-spacing:-.01em;
}
.brand-sub{font-size:11px;color:var(--text-faint);font-weight:400;line-height:1.2;margin-top:1px}
.side-nav{
  flex:1;
  padding:24px 14px;
  overflow-y:auto;
}
.nav-label{
  font-size:12px;
  color:var(--text-faint);
  padding:0 14px;
  margin-bottom:14px;
  letter-spacing:.06em;
}
.nav-item{
  position:relative;
  display:flex;
  align-items:center;
  gap:12px;
  padding:11px 14px;
  margin:5px 0;
  border-radius:10px;
  font-size:15px;
  font-weight:500;
  color:#3C5260;
  transition:background .2s,color .2s,transform .2s;
}
.nav-item svg{flex-shrink:0;opacity:.7;transition:opacity .2s}
.nav-item:hover{
  background:#F1F6F8;
  color:var(--primary);
  transform:translateX(2px);
}
.nav-item.active{
  background:var(--bg-deep);
  color:var(--primary);
  font-weight:600;
}
.nav-item.active::before{
  content:"";
  position:absolute;
  left:0;
  top:50%;
  transform:translateY(-50%);
  width:3px;
  height:18px;
  border-radius:20px;
  background:var(--accent);
}
.side-foot{
  padding:18px 24px;
  border-top:1px solid var(--line);
  flex-shrink:0;
  font-size:12.5px;
  color:var(--text-faint);
  line-height:1.7;
}
.side-foot strong{display:block;color:var(--text-sub);font-weight:600;font-size:13px}
.sidebar-mask{
  position:fixed;
  inset:0;
  background:rgba(22,32,38,.42);
  opacity:0;
  visibility:hidden;
  pointer-events:none;
  transition:opacity .25s,visibility .25s;
  z-index:190;
}
.sidebar-mask.show{opacity:1;visibility:visible;pointer-events:auto}

/* ===== Mobile top ===== */
.mobile-top{
  display:none;
  position:sticky;
  top:0;
  z-index:150;
  background:rgba(246,249,251,.92);
  backdrop-filter:blur(10px);
  align-items:center;
  justify-content:space-between;
  gap:10px;
  padding:12px 20px;
  border-bottom:1px solid var(--line);
}
.mobile-brand{
  font-size:17px;
  font-weight:700;
  color:var(--text-head);
  display:flex;
  align-items:center;
  gap:8px;
}
.mobile-brand .mini-mark{
  width:30px;height:30px;
  border-radius:9px;
  background:var(--primary);
  display:inline-flex;
  align-items:center;
  justify-content:center;
}
.menu-toggle{
  width:44px;height:44px;
  background:var(--white);
  border:1px solid var(--line);
  border-radius:12px;
  display:flex;
  align-items:center;
  justify-content:center;
  color:var(--primary);
  cursor:pointer;
  transition:background .2s;
}
.menu-toggle:hover{background:#EDF3F6}

/* ===== Main ===== */
.main{
  margin-left:var(--sidebar-width);
  min-height:100vh;
  width:calc(100% - var(--sidebar-width));
  display:flex;
  flex-direction:column;
}
.container{
  width:100%;
  max-width:var(--max-content);
  margin:0 auto;
  padding-left:36px;
  padding-right:36px;
}

/* ===== Hero ===== */
.hero-band{
  position:relative;
  background:
    linear-gradient(180deg,rgba(246,249,251,.2),rgba(230,240,245,.9)),
    url('/assets/images/backpic/back-1.png') center top / cover no-repeat;
  border-bottom:1px solid var(--line);
  overflow:hidden;
}
.hero{
  display:grid;
  grid-template-columns:minmax(0,1.08fr) minmax(320px,.92fr);
  gap:56px;
  align-items:center;
  padding:66px 0 72px;
}
.hero-eyebrow{
  display:inline-flex;
  align-items:center;
  gap:8px;
  background:rgba(255,255,255,.72);
  border:1px solid rgba(221,231,237,.85);
  color:var(--primary);
  font-size:14px;
  font-weight:600;
  padding:7px 14px;
  border-radius:100px;
  margin-bottom:22px;
  backdrop-filter:blur(6px);
}
.hero-eyebrow .pulse{
  width:7px;height:7px;
  border-radius:50%;
  background:#F2A46D;
  box-shadow:0 0 0 0 rgba(242,164,109,.45);
  animation:pulse 2s infinite;
}
@keyframes pulse{
  0%{box-shadow:0 0 0 0 rgba(242,164,109,.5)}
  70%{box-shadow:0 0 0 7px rgba(242,164,109,0)}
  100%{box-shadow:0 0 0 0 rgba(242,164,109,0)}
}
.hero h1{
  font-size:clamp(36px,5vw,54px);
  font-weight:700;
  color:var(--text-head);
  line-height:1.16;
  letter-spacing:-.01em;
  margin-bottom:18px;
}
.hero h1 span{
  display:inline-block;
  background:linear-gradient(120deg,#477B94,#30566B);
  -webkit-background-clip:text;
  background-clip:text;
  -webkit-text-fill-color:transparent;
}
.hero-lead{
  font-size:17px;
  color:var(--text-sub);
  max-width:520px;
  margin-bottom:28px;
  line-height:1.85;
}
.hero-actions{
  display:flex;
  gap:14px;
  flex-wrap:wrap;
  margin-bottom:32px;
}
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:9px;
  min-height:48px;
  padding:0 22px;
  border-radius:var(--radius-btn);
  background:var(--primary);
  color:#fff;
  font-size:15px;
  font-weight:600;
  border:1px solid transparent;
  transition:background .2s,transform .2s,box-shadow .2s,border-color .2s;
  cursor:pointer;
}
.btn:hover{background:#2A4C60;transform:translateY(-1px);box-shadow:0 10px 22px rgba(33,65,82,.18)}
.btn:active{transform:translateY(0)}
.btn-ghost{
  background:rgba(255,255,255,.82);
  border-color:#C9D9E1;
  color:var(--primary);
  backdrop-filter:blur(6px);
}
.btn-ghost:hover{background:#fff;border-color:#AABFCB;color:#234D62}
.btn-warm{
  background:var(--accent);
  color:#fff;
}
.btn-warm:hover{background:var(--accent-dark);box-shadow:0 10px 22px rgba(214,152,94,.25)}
.hero-stat-row{
  display:flex;
  gap:28px;
  flex-wrap:wrap;
}
.hero-stat .num{
  font-size:22px;
  font-weight:700;
  color:var(--text-head);
}
.hero-stat .txt{
  font-size:13px;
  color:var(--text-faint);
}

/* hero visual */
.hero-visual{
  position:relative;
  display:flex;
  justify-content:center;
  align-items:center;
}
.hero-visual::before{
  content:"";
  position:absolute;
  right:0;
  bottom:-20px;
  width:150px;
  height:150px;
  border-radius:34px;
  background:var(--accent);
  opacity:.12;
  transform:rotate(14deg);
}
.hero-card{
  position:relative;
  width:min(330px,92%);
  aspect-ratio:3/4;
  background:#fff;
  border-radius:26px;
  padding:9px;
  box-shadow:0 6px 16px rgba(31,53,66,.10),0 28px 58px rgba(31,53,66,.14);
  transform:rotate(1deg);
  z-index:1;
}
.hero-card-inner{
  position:relative;
  width:100%;
  height:100%;
  border-radius:19px;
  overflow:hidden;
  background:#dfe9ef;
}
.hero-card-inner img{
  position:absolute;
  inset:0;
  width:100%;
  height:100%;
  object-fit:cover;
}
.hero-card-inner::after{
  content:"";
  position:absolute;
  inset:0;
  background:linear-gradient(180deg,rgba(15,25,30,.04) 0%,rgba(15,25,30,.18) 55%,rgba(15,25,30,.78) 100%);
}
.hero-card-top{
  position:absolute;
  top:14px;
  left:14px;
  right:14px;
  display:flex;
  justify-content:space-between;
  align-items:center;
  z-index:2;
}
.hero-card-low{
  position:absolute;
  left:18px;
  right:18px;
  bottom:18px;
  color:#fff;
  z-index:2;
}
.hero-card-low .min-title{
  font-size:20px;
  font-weight:700;
  line-height:1.4;
  margin-bottom:6px;
}
.hero-card-low .min-desc{
  font-size:13px;
  line-height:1.8;
  opacity:.85;
}
.text-pill{
  display:inline-flex;
  align-items:center;
  gap:5px;
  background:rgba(255,255,255,.16);
  backdrop-filter:blur(5px);
  border:1px solid rgba(255,255,255,.26);
  color:#fff;
  padding:4px 10px;
  border-radius:100px;
  font-size:12px;
  font-weight:500;
}
.live-pill{
  background:#E9B17A;
  color:#fff;
  border:none;
  padding:4px 9px;
  border-radius:100px;
  font-size:11px;
  font-weight:600;
}
.deco-round{
  position:absolute;
  width:60px;
  height:60px;
  border-radius:18px;
  background:transparent;
  border:2px solid rgba(53,97,122,.22);
  top:-16px;
  left:-14px;
  z-index:0;
}

/* ===== Sections ===== */
.section{padding:86px 0;width:100%}
.section.tiny{padding:64px 0}
.section-head{
  display:flex;
  justify-content:space-between;
  align-items:flex-end;
  gap:24px;
  margin-bottom:48px;
}
.section-head.mid{margin-bottom:26px}
.sub-label{
  font-size:13px;
  font-weight:600;
  color:var(--accent-dark);
  letter-spacing:.08em;
  margin-bottom:8px;
  display:block;
}
.section-title{
  font-size:clamp(24px,3vw,32px);
  font-weight:700;
  color:var(--text-head);
  line-height:1.35;
}
.section-desc{
  color:var(--text-sub);
  max-width:560px;
  font-size:15px;
  line-height:1.85;
}
.head-link{
  display:inline-flex;
  align-items:center;
  gap:8px;
  color:var(--primary);
  font-size:14px;
  font-weight:600;
  white-space:nowrap;
  transition:color .2s;
}
.head-link:hover{color:var(--accent-dark)}

/* feature cards */
.featured-grid{
  display:grid;
  grid-template-columns:repeat(4,1fr);
  gap:24px;
}
.feature-card{
  background:var(--white);
  border:1px solid var(--line);
  border-radius:var(--radius-card);
  overflow:hidden;
  box-shadow:var(--shadow-1);
  transition:transform .25s,box-shadow .25s,border-color .25s;
  display:flex;
  flex-direction:column;
}
.feature-card:hover{
  transform:translateY(-5px);
  box-shadow:var(--shadow-2);
  border-color:#C9D9E1;
}
.feature-cover{
  position:relative;
  aspect-ratio:4/4.2;
  background-size:cover;
  background-position:center;
  overflow:hidden;
  flex-shrink:0;
}
.feature-cover::after{
  content:"";
  position:absolute;
  inset:0;
  background:linear-gradient(180deg,rgba(23,34,40,.04) 0%,rgba(23,34,40,.46) 100%);
}
.feature-tag{
  position:absolute;
  top:13px;
  left:13px;
  z-index:2;
  display:inline-block;
  background:rgba(255,255,255,.18);
  color:#fff;
  border:1px solid rgba(255,255,255,.28);
  backdrop-filter:blur(4px);
  border-radius:100px;
  font-size:12px;
  font-weight:500;
  padding:4px 11px;
}
.feature-body{padding:18px 20px 22px;flex:1;display:flex;flex-direction:column}
.feature-body h3{
  font-size:17px;
  color:var(--text-head);
  line-height:1.55;
  margin-bottom:8px;
}
.feature-body p{
  font-size:14px;
  color:var(--text-sub);
  line-height:1.8;
  flex:1;
}
.feature-foot{
  margin-top:15px;
  border-top:1px solid #EDF3F6;
  padding-top:12px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  font-size:13px;
  color:var(--text-faint);
}
.feature-foot .more{
  color:var(--primary);
  font-weight:600;
  display:inline-flex;
  gap:5px;
}
.feature-card:hover .feature-foot .more{color:var(--accent-dark)}

/* worth */
.section-worth{background:#EDF4F7;border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.worth-grid{
  display:grid;
  grid-template-columns:.9fr 1.1fr;
  gap:58px;
  align-items:center;
}
.worth-copy .mini-note{
  color:var(--primary);
  font-size:14px;
  font-weight:700;
  margin-bottom:12px;
  display:block;
}
.worth-copy h2{
  font-size:clamp(23px,2.7vw,32px);
  color:var(--text-head);
  line-height:1.45;
  font-weight:700;
  margin-bottom:18px;
}
.worth-copy p{
  color:var(--text-sub);
  font-size:15px;
  line-height:1.9;
  margin-bottom:16px;
}
.worth-copy blockquote{
  border-left:3px solid var(--accent);
  padding-left:18px;
  color:#49606F;
  font-size:15px;
  background:rgba(255,255,255,.42);
  padding:14px 18px;
  border-radius:0 12px 12px 0;
  margin:22px 0 0;
}
.worth-list{display:grid;gap:12px}
.worth-item{
  display:flex;
  gap:15px;
  align-items:flex-start;
  background:var(--white);
  border:1px solid var(--line);
  border-radius:14px;
  padding:17px 18px;
  transition:box-shadow .2s,transform .2s;
}
.worth-item:hover{
  box-shadow:var(--shadow-2);
  transform:translateX(-2px);
}
.worth-no{
  width:34px;height:34px;
  border-radius:11px;
  background:#E7F0F5;
  color:var(--primary);
  font-weight:700;
  font-size:15px;
  display:flex;
  align-items:center;
  justify-content:center;
  flex-shrink:0;
}
.worth-txt h3{font-size:16px;color:var(--text-head);margin-bottom:4px;font-weight:600}
.worth-txt p{font-size:14px;color:var(--text-sub);line-height:1.75}

/* Latest list */
.latest-section{background:var(--white)}
.latest-layout{
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:38px;
  align-items:stretch;
}
.latest-feature{
  background:var(--white);
  border:1px solid var(--line);
  border-radius:var(--radius-card);
  overflow:hidden;
  box-shadow:var(--shadow-1);
  display:flex;
  flex-direction:column;
  transition:box-shadow .25s,transform .25s;
}
.latest-feature:hover{box-shadow:var(--shadow-2);transform:translateY(-3px)}
.latest-cover{
  position:relative;
  aspect-ratio:16/10;
  background-size:cover;
  background-position:center;
  background-color:#DDE7ED;
}
.latest-cover::after{
  content:"";
  position:absolute;
  inset:0;
  background:linear-gradient(180deg,rgba(15,25,30,.02) 10%,rgba(15,25,30,.45) 100%);
}
.latest-cover .post-cat{
  position:absolute;
  top:14px;left:14px;
  background:#fff;
  color:var(--primary);
  border:1px solid var(--line);
  border-radius:100px;
  padding:4px 11px;
  font-size:12px;
  font-weight:600;
  z-index:2;
}
.latest-body{padding:24px 26px;display:flex;flex-direction:column;flex:1}
.latest-date{
  font-size:13px;
  color:var(--text-faint);
  display:flex;
  align-items:center;
  gap:8px;
  margin-bottom:8px;
}
.latest-body h3{
  font-size:21px;
  color:var(--text-head);
  line-height:1.5;
  margin-bottom:10px;
  font-weight:700;
}
.latest-body p{
  font-size:14.5px;
  color:var(--text-sub);
  line-height:1.9;
  flex:1;
}
.latest-body .text-link{
  margin-top:14px;
  color:var(--primary);
  font-weight:600;
  font-size:14px;
}
.latest-side{
  display:flex;
  flex-direction:column;
  gap:12px;
}
.latest-row{
  background:var(--white);
  border:1px solid var(--line);
  border-radius:14px;
  padding:16px 18px;
  display:flex;
  align-items:center;
  gap:15px;
  transition:box-shadow .2s,border-color .2s,transform .2s;
}
.latest-row:hover{
  box-shadow:var(--shadow-1);
  border-color:#C8D8E1;
  transform:translateX(-2px);
}
.latest-row-main{display:flex;align-items:center;gap:14px;flex:1;min-width:0}
.row-cat{
  flex-shrink:0;
  font-size:11px;
  font-weight:600;
  background:#EFF5F8;
  color:var(--primary);
  padding:3px 9px;
  border-radius:6px;
}
.row-title{
  font-size:15px;
  color:var(--text-head);
  font-weight:500;
  overflow:hidden;
  display:-webkit-box;
  -webkit-line-clamp:2;
  -webkit-box-orient:vertical;
  line-height:1.6;
}
.row-time{font-size:12.5px;color:var(--text-faint);white-space:nowrap;flex-shrink:0}
.empty-tip{
  grid-column:1/-1;
  text-align:center;
  background:#F3F7F9;
  border:1px dashed #C5D4DC;
  border-radius:var(--radius-card);
  padding:52px 24px;
  color:var(--text-sub);
  font-size:15px;
  line-height:1.8;
}

/* Review */
.review-band{background:#F3F7F9}
.review-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:22px}
.review-card{
  background:var(--white);
  border:1px solid var(--line);
  border-radius:var(--radius-card);
  padding:22px 22px 20px;
  box-shadow:var(--shadow-1);
  transition:transform .2s,box-shadow .2s;
}
.review-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-2)}
.review-stars{display:flex;gap:2px;color:#E6A868;font-size:14px;margin-bottom:13px}
.review-card blockquote{
  font-size:14px;
  color:#394F5D;
  line-height:1.85;
  min-height:112px;
}
.review-user{
  margin-top:16px;
  display:flex;
  align-items:center;
  gap:10px;
  border-top:1px solid #F0F5F7;
  padding-top:13px;
}
.avatar{
  width:36px;height:36px;
  background:#D8E6EC;
  border-radius:50%;
  color:var(--primary);
  display:flex;
  align-items:center;
  justify-content:center;
  font-weight:600;
  font-size:14px;
}
.user-name{font-size:13.5px;font-weight:600;color:var(--text-head)}
.user-type{font-size:11.5px;color:var(--text-faint)}

/* FAQ */
.faq-wrap{max-width:900px;margin:0 auto}
.faq-item{
  border-bottom:1px solid var(--line);
  transition:background .2s;
}
.faq-item:first-child{border-top:1px solid var(--line)}
.faq-q{
  display:flex;
  justify-content:space-between;
  align-items:center;
  gap:20px;
  width:100%;
  background:transparent;
  padding:22px 8px;
  text-align:left;
  color:var(--text-head);
  font-size:16.5px;
  font-weight:600;
  cursor:pointer;
  transition:color .2s;
}
.faq-q:hover{color:var(--primary)}
.faq-icon{
  width:30px;height:30px;
  border-radius:50%;
  background:#EEF4F7;
  color:var(--primary);
  display:flex;
  align-items:center;
  justify-content:center;
  font-size:20px;
  font-weight:300;
  flex-shrink:0;
  transition:transform .25s,background .25s;
}
.faq-item.open .faq-icon{
  transform:rotate(45deg);
  background:var(--primary);
  color:#fff;
}
.faq-a{
  max-height:0;
  overflow:hidden;
  transition:max-height .3s ease,padding .3s ease;
  color:var(--text-sub);
  font-size:15px;
  line-height:1.95;
  padding:0 8px;
}

/* CTA band */
.cta-band{
  position:relative;
  padding:76px 0;
  background:
    linear-gradient(120deg,rgba(33,60,73,.88),rgba(53,97,122,.82)),
    url('/assets/images/backpic/back-3.png') center / cover no-repeat;
  overflow:hidden;
}
.cta-wrap{
  position:relative;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:48px;
  color:#fff;
}
.cta-main h2{
  font-size:clamp(23px,3vw,31px);
  font-weight:700;
  line-height:1.5;
  color:#fff;
  margin-bottom:14px;
}
.cta-main p{
  color:rgba(255,255,255,.86);
  font-size:15px;
  line-height:1.9;
  max-width:640px;
}
.cta_actions{flex-shrink:0;display:flex;gap:14px;flex-wrap:wrap}
.cta_actions .btn-warm{background:#E4AF6F}
.cta_actions .btn-ghost{background:rgba(255,255,255,.12);border:1px solid rgba(255,255,255,.36);color:#fff;backdrop-filter:blur(4px)}
.cta_actions .btn-ghost:hover{background:rgba(255,255,255,.22);border-color:rgba(255,255,255,.5)}

/* Footer */
.site-footer{
  background:#EDF3F6;
  border-top:1px solid #D6E2E8;
  margin-top:auto;
}
.footer-main{
  padding:46px 0 32px;
  display:grid;
  grid-template-columns:1.2fr .8fr .8fr .8fr;
  gap:36px;
}
.footer-brand .logo-line{
  font-size:19px;
  font-weight:700;
  color:var(--text-head);
  display:flex;
  align-items:center;
  gap:9px;
  margin-bottom:12px;
}
.footer-brand p{
  font-size:13.5px;
  color:var(--text-sub);
  max-width:280px;
  line-height:1.9;
}
.footer-col h4{
  font-size:14px;
  font-weight:700;
  color:var(--text-head);
  margin-bottom:15px;
}
.footer-col a{
  display:block;
  font-size:13.5px;
  color:var(--text-sub);
  padding:4px 0;
  transition:color .2s,transform .2s;
}
.footer-col a:hover{color:var(--primary);transform:translateX(2px)}
.footer-bottom{
  border-top:1px solid #D2E0E7;
  padding:20px 0;
  display:flex;
  justify-content:space-between;
  gap:12px;
  flex-wrap:wrap;
  font-size:12.5px;
  color:var(--text-faint);
}
.footer-bottom a{color:var(--text-sub)}
.footer-bottom a:hover{color:var(--primary)}

/* ===== Responsive ===== */
@media (max-width:1199px){
  .featured-grid{grid-template-columns:repeat(3,1fr)}
  .review-grid{grid-template-columns:repeat(2,1fr)}
  .review-card blockquote{min-height:auto}
}
@media (max-width:1024px){
  .sidebar{
    transform:translateX(-105%);
    transition:transform .28s ease;
    box-shadow:0 0 24px rgba(24,34,40,.14);
  }
  .sidebar.open{transform:translateX(0)}
  .sidebar-mask.show{opacity:1;visibility:visible}
  .mobile-top{display:flex}
  .main{margin-left:0;width:100%}
  .hero{grid-template-columns:1fr;gap:44px;padding:62px 0 72px}
  .hero-lead{max-width:680px}
  .hero-visual{order:2}
  .deco-round{display:none}
  .worth-grid{grid-template-columns:1fr;gap:34px}
  .latest-layout{grid-template-columns:1fr;gap:28px}
  .cta-wrap{flex-direction:column;align-items:flex-start}
  .footer-main{grid-template-columns:1fr 1fr}
  .container{padding-left:28px;padding-right:28px}
}
@media (max-width:767px){
  .section{padding:60px 0}
  .hero{padding:46px 0 60px}
  .featured-grid{grid-template-columns:repeat(2,1fr);gap:14px}
  .feature-body{padding:14px 14px 17px}
  .feature-body h3{font-size:14.5px}
  .feature-body p{font-size:13px}
  .section-head{flex-direction:column;align-items:flex-start}
  .review-grid{grid-template-columns:1fr;gap:14px}
  .review-card{display:block}
  .latest-row{flex-direction:column;align-items:flex-start}
  .latest-row-main{width:100%}
  .row-time{align-self:flex-end}
  .latest-body h3{font-size:18px}
  .footer-main{grid-template-columns:1fr 1fr;gap:24px}
  .cta_actions .btn{width:100%}
  .cta_actions{width:100%}
  .btn{width:auto}
  .hero-actions .btn{flex:1 1 auto;justify-content:center}
}
@media (max-width:520px){
  .container{padding-left:18px;padding-right:18px}
  .featured-grid{grid-template-columns:1fr 1fr;gap:12px}
  .feature-cover{aspect-ratio:3/3.9}
  .feature-body{padding:12px 11px 14px}
  .feature-body h3{font-size:13px}
  .feature-body p{display:none}
  .feature-foot{display:none}
  .hero-stat-row{gap:16px}
  .hero h1{font-size:35px}
  .hero-lead{font-size:15.5px}
  .brand-sub{display:none}
  .mobile-top{padding:10px 16px}
  .mobile-brand{font-size:15px}
  .footer-main{grid-template-columns:1fr}
  .footer-bottom{flex-direction:column}
  .hero-actions{flex-direction:column}
  .hero-actions .btn{width:100%}
  .cta-wrap h2{font-size:24px}
}

/* roulang page: article */
:root {
            --primary: #4E7D96;
            --primary-deep: #35617A;
            --primary-soft: #DCE9F0;
            --accent: #D89A5F;
            --accent-deep: #C17F45;
            --bg: #F6F9FB;
            --white: #FFFFFF;
            --text: #20303C;
            --text-sub: #5A6B78;
            --text-faint: #8899A6;
            --border: #DDE7ED;
            --radius-lg: 16px;
            --radius-md: 10px;
            --radius-sm: 8px;
            --shadow-sm: 0 1px 3px rgba(30, 50, 65, 0.06);
            --shadow-md: 0 4px 16px rgba(30, 50, 65, 0.08);
            --shadow-lg: 0 10px 32px rgba(30, 50, 65, 0.1);
            --font-base: -apple-system, BlinkMacSystemFont, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans CJK SC", "Source Han Sans CN", sans-serif;
            --sidebar-width: 250px;
        }

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

        html {
            scroll-behavior: smooth;
        }

        body {
            font-family: var(--font-base);
            font-size: 16px;
            line-height: 1.75;
            color: var(--text);
            background: var(--bg);
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

        a {
            text-decoration: none;
            color: inherit;
            transition: color 0.2s ease;
        }

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

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

        input {
            font-family: inherit;
        }

        .layout {
            display: flex;
            min-height: 100vh;
        }

        .side-nav {
            width: var(--sidebar-width);
            min-height: 100vh;
            background: var(--white);
            border-right: 1px solid var(--border);
            position: fixed;
            top: 0;
            left: 0;
            z-index: 300;
            display: flex;
            flex-direction: column;
            padding: 0 16px;
            overflow-y: auto;
        }

        .nav-brand {
            display: flex;
            align-items: center;
            gap: 8px;
            padding: 22px 12px 18px;
            border-bottom: 1px solid var(--border);
            margin-bottom: 14px;
        }

        .brand-mark {
            width: 32px;
            height: 32px;
            background: var(--primary);
            border-radius: 9px;
            display: flex;
            align-items: center;
            justify-content: center;
            flex-shrink: 0;
            box-shadow: 0 2px 8px rgba(78, 125, 150, 0.25);
        }

        .brand-mark svg {
            width: 18px;
            height: 18px;
            stroke: #fff;
        }

        .brand-text {
            font-size: 16px;
            font-weight: 700;
            color: var(--text);
            letter-spacing: -0.01em;
            white-space: nowrap;
            overflow: hidden;
            text-overflow: ellipsis;
        }

        .brand-sub {
            font-size: 12px;
            color: var(--text-faint);
            line-height: 1.3;
            margin-top: 2px;
        }

        .nav-label {
            font-size: 12px;
            font-weight: 600;
            color: var(--text-faint);
            padding: 8px 12px;
            letter-spacing: 0.04em;
        }

        .nav-item {
            display: flex;
            align-items: center;
            gap: 10px;
            padding: 10px 12px;
            border-radius: var(--radius-md);
            font-size: 15px;
            font-weight: 500;
            color: var(--text-sub);
            margin-bottom: 4px;
            transition: all 0.2s ease;
            position: relative;
        }

        .nav-item svg {
            flex-shrink: 0;
            opacity: 0.7;
            transition: opacity 0.2s ease;
        }

        .nav-item:hover {
            background: var(--bg);
            color: var(--primary);
        }

        .nav-item:hover svg {
            opacity: 1;
        }

        .nav-item:focus-visible {
            outline: 2px solid var(--primary);
            outline-offset: 2px;
        }

        .nav-item.active {
            background: var(--primary-soft);
            color: var(--primary-deep);
            font-weight: 600;
        }

        .nav-item.active::before {
            content: '';
            position: absolute;
            left: -16px;
            top: 50%;
            transform: translateY(-50%);
            width: 3px;
            height: 24px;
            background: var(--primary);
            border-radius: 0 2px 2px 0;
        }

        .nav-bottom {
            margin-top: auto;
            padding: 16px 12px;
            border-top: 1px solid var(--border);
            font-size: 12px;
            color: var(--text-faint);
            line-height: 1.5;
        }

        .nav-bottom a {
            display: inline-flex;
            align-items: center;
            gap: 4px;
            color: var(--text-faint);
            font-size: 12px;
            margin-top: 6px;
        }

        .nav-bottom a:hover {
            color: var(--primary);
        }

        .main {
            flex: 1;
            margin-left: var(--sidebar-width);
            min-width: 0;
        }

        .article-wrap {
            max-width: 860px;
            margin: 0 auto;
            padding: 56px 36px 100px;
        }

        .breadcrumb {
            font-size: 14px;
            color: var(--text-faint);
            margin-bottom: 28px;
            display: flex;
            align-items: center;
            flex-wrap: wrap;
            gap: 4px;
        }

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

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

        .breadcrumb .sep {
            color: var(--text-faint);
            margin: 0 4px;
        }

        .breadcrumb .current {
            color: var(--primary);
            font-weight: 500;
        }

        .article-header {
            margin-bottom: 36px;
        }

        .article-header h1 {
            font-size: clamp(26px, 4vw, 36px);
            line-height: 1.35;
            font-weight: 700;
            color: var(--text);
            margin-bottom: 20px;
            letter-spacing: -0.01em;
        }

        .article-meta-wrap {
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            gap: 14px;
            padding-top: 16px;
            border-top: 1px solid var(--border);
        }

        .meta-item {
            display: flex;
            align-items: center;
            gap: 6px;
            font-size: 14px;
            color: var(--text-sub);
        }

        .meta-item svg {
            opacity: 0.5;
        }

        .tag-badge {
            display: inline-block;
            background: var(--primary-soft);
            color: var(--primary-deep);
            font-size: 13px;
            font-weight: 600;
            padding: 4px 12px;
            border-radius: var(--radius-sm);
            line-height: 1.6;
        }

        .article-featured-img {
            border-radius: var(--radius-lg);
            overflow: hidden;
            margin-bottom: 32px;
            box-shadow: var(--shadow-md);
            aspect-ratio: 16/7;
            background: linear-gradient(135deg, var(--primary-soft), var(--bg));
            display: flex;
            align-items: center;
            justify-content: center;
        }

        .article-featured-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }

        .article-body {
            font-size: 17px;
            line-height: 1.95;
            color: var(--text);
            letter-spacing: 0.01em;
            word-break: break-word;
        }

        .article-body p {
            margin-bottom: 22px;
        }

        .article-body h2 {
            font-size: 24px;
            font-weight: 700;
            margin-top: 44px;
            margin-bottom: 16px;
            color: var(--text);
            line-height: 1.45;
        }

        .article-body h3 {
            font-size: 19px;
            font-weight: 600;
            margin-top: 32px;
            margin-bottom: 12px;
            color: var(--text);
        }

        .article-body ul {
            margin-bottom: 22px;
            list-style: none;
            padding-left: 0;
        }

        .article-body ul li {
            position: relative;
            padding-left: 20px;
            margin-bottom: 8px;
        }

        .article-body ul li::before {
            content: '';
            position: absolute;
            left: 2px;
            top: 13px;
            width: 7px;
            height: 7px;
            border-radius: 50%;
            background: var(--primary);
        }

        .article-body ol {
            padding-left: 24px;
            margin-bottom: 22px;
        }

        .article-body blockquote {
            border-left: 3px solid var(--primary);
            background: var(--bg);
            padding: 20px 24px;
            border-radius: 0 var(--radius-md) var(--radius-md) 0;
            font-style: normal;
            color: var(--text-sub);
            margin: 24px 0;
        }

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

        .article-body a {
            color: var(--primary);
            border-bottom: 1px solid rgba(78, 125, 150, 0.3);
            transition: border-color 0.2s ease;
        }

        .article-body a:hover {
            border-color: var(--primary);
        }

        .article-body img {
            border-radius: var(--radius-md);
            margin: 24px 0;
        }

        .article-body .figure-caption {
            font-size: 13px;
            color: var(--text-faint);
            text-align: center;
            margin-top: -14px;
            margin-bottom: 22px;
        }

        .article-body code {
            background: var(--bg);
            border: 1px solid var(--border);
            border-radius: 4px;
            font-size: 14px;
            padding: 2px 8px;
            font-family: "SF Mono", "JetBrains Mono", Consolas, monospace;
        }

        .article-body table {
            width: 100%;
            border-collapse: collapse;
            margin: 24px 0;
            font-size: 15px;
        }

        .article-body table th,
        .article-body table td {
            padding: 12px 16px;
            text-align: left;
            border-bottom: 1px solid var(--border);
        }

        .article-body table th {
            background: var(--bg);
            font-weight: 600;
        }

        .not-found {
            text-align: center;
            padding: 70px 20px;
            background: var(--white);
            border-radius: var(--radius-lg);
            border: 1px solid var(--border);
        }

        .not-found-box {
            max-width: 420px;
            margin: 0 auto;
        }

        .not-found-box .icon-circle {
            width: 72px;
            height: 72px;
            border-radius: 50%;
            background: var(--bg);
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 20px;
        }

        .not-found-box h2 {
            font-size: 20px;
            font-weight: 600;
            margin-bottom: 10px;
        }

        .not-found-box p {
            color: var(--text-sub);
            font-size: 15px;
            margin-bottom: 24px;
        }

        .btn-back {
            display: inline-block;
            background: var(--primary);
            color: #fff;
            padding: 10px 24px;
            border-radius: var(--radius-md);
            font-size: 15px;
            font-weight: 500;
            transition: all 0.2s ease;
        }

        .btn-back:hover {
            background: var(--primary-deep);
            transform: translateY(-2px);
            box-shadow: var(--shadow-md);
        }

        .article-pagination {
            margin-top: 48px;
            padding-top: 24px;
            border-top: 1px solid var(--border);
            display: flex;
            justify-content: space-between;
            gap: 20px;
        }

        .page-nav-link {
            font-size: 15px;
            color: var(--text-sub);
            display: inline-flex;
            align-items: center;
            gap: 6px;
            transition: all 0.2s ease;
        }

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

        .page-nav-link .muted {
            display: block;
            font-size: 13px;
            color: var(--text-faint);
        }

        .related-posts {
            margin-top: 48px;
            padding-top: 32px;
            border-top: 1px solid var(--border);
        }

        .related-posts .related-title {
            font-size: 18px;
            font-weight: 600;
            margin-bottom: 20px;
            display: flex;
            align-items: center;
            gap: 8px;
        }

        .related-posts .related-title::before {
            content: '';
            width: 3px;
            height: 18px;
            background: var(--primary);
            border-radius: 2px;
            display: inline-block;
        }

        .related-list {
            list-style: none;
            padding: 0;
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 12px;
        }

        .related-list li a {
            display: flex;
            align-items: baseline;
            gap: 8px;
            padding: 14px 16px;
            background: var(--white);
            border: 1px solid var(--border);
            border-radius: var(--radius-md);
            font-size: 15px;
            line-height: 1.6;
            color: var(--text);
            transition: all 0.2s ease;
        }

        .related-list li a:hover {
            background: var(--primary-soft);
            color: var(--primary-deep);
            transform: translateY(-1px);
            box-shadow: var(--shadow-sm);
        }

        .related-list li .arrow {
            margin-left: auto;
            color: var(--text-faint);
            flex-shrink: 0;
        }

        .site-footer {
            background: var(--white);
            border-top: 1px solid var(--border);
            padding: 56px 36px 32px;
            margin-left: var(--sidebar-width);
        }

        .footer-main {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr 1fr;
            gap: 40px;
            max-width: 1200px;
            margin: 0 auto 40px;
        }

        .footer-brand .logo-line {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 18px;
            font-weight: 700;
            margin-bottom: 14px;
        }

        .footer-brand .logo-line svg {
            width: 20px;
            height: 20px;
        }

        .footer-brand p {
            font-size: 13px;
            color: var(--text-faint);
            line-height: 1.8;
            max-width: 320px;
        }

        .footer-col h4 {
            font-size: 14px;
            font-weight: 600;
            color: var(--text);
            margin-bottom: 14px;
        }

        .footer-col a {
            display: block;
            font-size: 14px;
            color: var(--text-sub);
            padding: 5px 0;
            transition: color 0.2s ease;
        }

        .footer-col a:hover {
            color: var(--primary);
        }

        .footer-bottom {
            border-top: 1px solid var(--border);
            padding-top: 24px;
            display: flex;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 10px;
            font-size: 13px;
            color: var(--text-faint);
            max-width: 1200px;
            margin: 0 auto;
            text-align: left;
        }

        .back-to-top {
            position: fixed;
            right: 20px;
            bottom: 20px;
            background: var(--primary);
            color: #fff;
            width: 44px;
            height: 44px;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            box-shadow: var(--shadow-md);
            z-index: 99;
            transition: opacity 0.2s ease, background 0.2s ease;
            opacity: 0;
            pointer-events: none;
        }

        .back-to-top.show {
            opacity: 0.8;
            pointer-events: auto;
        }
        .back-to-top:hover {
            opacity: 1;
            background: var(--primary-deep);
        }
        .back-to-top svg {
            width: 18px;
            height: 18px;
        }

        .menu-toggle {
            display: none;
        }

        @media (max-width: 1024px) {
            .side-nav {
                display: none;
            }

            .main {
                margin-left: 0;
            }

            .site-footer {
                margin-left: 0;
            }

            .mobile-header {
                display: flex;
                position: sticky;
                top: 0;
                z-index: 300;
                background: var(--white);
                border-bottom: 1px solid var(--border);
                align-items: center;
                justify-content: space-between;
                padding: 12px 20px;
            }

            .mobile-header .mobile-brand {
                display: flex;
                align-items: center;
                gap: 8px;
                font-weight: 700;
                font-size: 16px;
            }

            .mobile-header .mobile-brand svg {
                width: 20px;
                height: 20px;
            }

            .menu-toggle {
                display: flex;
                width: 40px;
                height: 40px;
                border-radius: var(--radius-sm);
                align-items: center;
                justify-content: center;
                font-size: 22px;
                line-height: 1;
                color: var(--text);
                cursor: pointer;
            }

            .mobile-overlay {
                display: none;
                position: fixed;
                top: 0;
                left: 0;
                right: 0;
                bottom: 0;
                background: rgba(32, 48, 60, 0.5);
                z-index: 400;
            }

            .mobile-nav-drawer {
                position: fixed;
                top: 0;
                left: 0;
                bottom: 0;
                width: 280px;
                background: var(--white);
                z-index: 500;
                padding: 20px 16px;
                overflow-y: auto;
                transform: translateX(-100%);
                transition: transform 0.3s ease;
            }

            .mobile-nav-drawer.open {
                transform: translateX(0);
            }

            .mobile-nav-drawer .drawer-nav-list {
                margin-top: 16px;
            }

            .mobile-nav-drawer .drawer-nav-list a {
                display: flex;
                align-items: center;
                gap: 10px;
                padding: 12px;
                border-radius: var(--radius-md);
                font-size: 15px;
                font-weight: 500;
                color: var(--text-sub);
            }

            .mobile-nav-drawer .drawer-nav-list a:hover {
                background: var(--bg);
                color: var(--primary);
            }

            .mobile-nav-drawer .drawer-nav-list a.active {
                background: var(--primary-soft);
                color: var(--primary-deep);
                font-weight: 600;
            }

            .drawer-brand {
                display: flex;
                align-items: center;
                gap: 8px;
                padding-bottom: 16px;
                border-bottom: 1px solid var(--border);
                margin-bottom: 12px;
            }

            .drawer-brand svg {
                width: 18px;
                height: 18px;
            }

            .drawer-close-btn {
                display: flex;
                align-items: center;
                justify-content: center;
                width: 32px;
                height: 32px;
                margin-left: auto;
                border-radius: var(--radius-sm);
                color: var(--text-sub);
                cursor: pointer;
                font-size: 18px;
            }

            .mobile-header-bar {
                position: static;
            }
        }

        @media (max-width: 768px) {
            .article-wrap {
                padding: 36px 18px 70px;
            }

            .article-header h1 {
                font-size: 26px;
            }

            .article-meta-wrap {
                gap: 10px;
            }

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

            .footer-main {
                grid-template-columns: 1fr;
                gap: 24px;
                padding-bottom: 24px;
            }

            .related-list {
                grid-template-columns: 1fr;
            }
        }

        @media (max-width: 520px) {
            .article-wrap {
                padding: 28px 14px 60px;
            }

            .article-featured-img {
                aspect-ratio: 16/6;
            }

            .article-pagination {
                flex-direction: column;
                gap: 14px;
            }

            .footer-bottom {
                flex-direction: column;
                gap: 6px;
            }
        }

/* roulang page: category2 */
:root {
  --primary: #35617A;
  --primary-deep: #284E63;
  --primary-soft: #EAF1F5;
  --accent: #D89A5F;
  --accent-deep: #B9773A;
  --accent-soft: #F7EADC;
  --bg: #F6F9FB;
  --surface: #FFFFFF;
  --text: #20303C;
  --muted: #5A6B78;
  --faint: #8799A6;
  --border: #DDE7ED;
  --radius-lg: 18px;
  --radius-md: 12px;
  --radius-sm: 8px;
  --shadow-sm: 0 1px 2px rgba(30, 50, 65, 0.04), 0 10px 24px rgba(30, 50, 65, 0.06);
  --shadow-md: 0 2px 4px rgba(30, 50, 65, 0.05), 0 18px 40px rgba(30, 50, 65, 0.10);
  --container: 1200px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans CJK SC", "Source Han Sans CN", system-ui, -apple-system, sans-serif;
  font-size: 16px;
  line-height: 1.75;
  background: var(--bg);
  color: var(--text);
  -webkit-font-smoothing: antialiased;
}

h1, h2, h3, h4 {
  margin: 0;
  line-height: 1.4;
  font-weight: 700;
  color: var(--text);
}

p {
  margin: 0;
}

a {
  color: var(--primary);
  text-decoration: none;
}

a:hover {
  color: var(--primary-deep);
}

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

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

button {
  font-family: inherit;
}

.container {
  max-width: var(--container);
  margin: 0 auto;
  padding-left: 32px;
  padding-right: 32px;
}

.layout {
  display: flex;
  min-height: 100vh;
}

.sidebar {
  position: fixed;
  top: 0;
  left: 0;
  z-index: 80;
  width: 264px;
  height: 100vh;
  height: 100dvh;
  background: var(--surface);
  border-right: 1px solid var(--border);
  padding: 26px 20px 22px;
  transition: transform .32s ease;
}

.side-inner {
  height: 100%;
  display: flex;
  flex-direction: column;
}

.side-close {
  display: none;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  color: var(--text);
  font-size: 17px;
  font-weight: 700;
  line-height: 32px;
  letter-spacing: -0.01em;
  padding: 0 4px;
}

.brand svg {
  color: var(--primary);
  flex: 0 0 auto;
}

.brand span {
  text-decoration: none;
}

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

.side-brief {
  margin-top: 14px;
  padding: 0 4px;
  font-size: 13px;
  line-height: 1.75;
  color: var(--muted);
}

.side-nav {
  margin-top: 32px;
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.nav-label {
  font-size: 12px;
  font-weight: 600;
  color: var(--faint);
  letter-spacing: .08em;
  padding: 0 12px;
  margin-bottom: 8px;
}

.nav-item {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 11px 12px;
  border-radius: 12px;
  font-size: 15px;
  font-weight: 500;
  color: var(--text);
  transition: background .2s ease, color .2s ease, transform .2s ease;
}

.nav-item svg {
  flex: 0 0 auto;
  color: var(--muted);
  transition: color .2s ease;
}

.nav-item:hover {
  background: var(--primary-soft);
  color: var(--primary-deep);
  transform: translateX(2px);
}

.nav-item:hover svg {
  color: var(--primary);
}

.nav-item.active {
  background: var(--primary);
  color: #ffffff;
  box-shadow: 0 8px 18px rgba(53, 97, 122, 0.20);
}

.nav-item.active svg {
  color: #ffffff;
}

.side-foot {
  margin-top: auto;
  padding-top: 18px;
  border-top: 1px solid var(--border);
  display: flex;
  gap: 10px;
  align-items: flex-start;
  color: var(--faint);
  font-size: 12px;
  line-height: 1.7;
}

.side-foot svg {
  flex: 0 0 auto;
  margin-top: 2px;
  color: var(--accent);
}

.drawer-backdrop {
  display: none;
}

.main-wrap {
  width: calc(100% - 264px);
  margin-left: 264px;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

.topbar {
  display: none;
}

.page-hero {
  background: linear-gradient(135deg, rgba(53, 97, 122, 0.10) 10%, rgba(246, 249, 251, 0.98) 46%, rgba(247, 234, 220, 0.30) 100%), url('/assets/images/backpic/back-1.png') center / cover no-repeat;
  border-bottom: 1px solid var(--border);
  padding: 68px 0 72px;
}

.hero-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.08fr) minmax(300px, .92fr);
  gap: 60px;
  align-items: center;
}

.hero-kicker {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  font-weight: 600;
  color: var(--primary);
  background: rgba(255, 255, 255, .8);
  border: 1px solid rgba(53, 97, 122, .18);
  border-radius: 999px;
  padding: 6px 14px;
  margin-bottom: 20px;
  box-shadow: var(--shadow-sm);
}

.hero-kicker::before {
  content: "";
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--accent);
}

.hero-title {
  font-size: clamp(34px, 5.2vw, 52px);
  line-height: 1.24;
  letter-spacing: -0.01em;
  font-weight: 800;
  margin-bottom: 18px;
  color: var(--text);
}

.hero-title .hero-k {
  color: var(--primary);
}

.hero-title .hero-sub {
  color: var(--accent-deep);
}

.hero-desc {
  font-size: 16px;
  line-height: 1.9;
  color: var(--muted);
  max-width: 580px;
}

.hero-desc strong {
  color: var(--text);
  font-weight: 600;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-top: 28px;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  min-height: 48px;
  border-radius: 10px;
  font-size: 15px;
  font-weight: 600;
  border: 1px solid transparent;
  cursor: pointer;
  padding: 10px 24px;
  transition: all .2s ease;
}

.btn svg {
  flex: 0 0 auto;
}

.btn-primary {
  background: var(--primary);
  color: #fff;
  box-shadow: 0 10px 20px rgba(53, 97, 122, 0.18);
}

.btn-primary:hover {
  background: var(--primary-deep);
  color: #fff;
  transform: translateY(-2px);
  box-shadow: 0 14px 28px rgba(53, 97, 122, 0.22);
}

.btn-primary:focus-visible,
.btn-ghost:focus-visible,
.nav-burger:focus-visible,
.faq-summary:focus-visible,
.side-close:focus-visible {
  outline: 2px solid var(--primary);
  outline-offset: 2px;
}

.btn-ghost {
  background: rgba(255, 255, 255, .8);
  color: var(--text);
  border-color: var(--border);
}

.btn-ghost:hover {
  background: var(--surface);
  color: var(--primary-deep);
  border-color: var(--primary);
  transform: translateY(-2px);
}

.hero-counters {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 30px;
}

.counter-pill {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(255, 255, 255, .78);
  border: 1px solid rgba(255, 255, 255, .9);
  border-radius: 999px;
  padding: 7px 14px;
  font-size: 13px;
  font-weight: 500;
  color: var(--muted);
  box-shadow: var(--shadow-sm);
}

.counter-pill strong {
  color: var(--primary);
  font-weight: 700;
}

.hero-visual {
  position: relative;
  border-radius: 28px;
  overflow: hidden;
  box-shadow: 0 24px 50px rgba(40, 78, 99, 0.16);
  background: var(--primary-soft);
  min-height: 380px;
  aspect-ratio: 4 / 4.1;
  transform: translateZ(0);
}

.hero-visual img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform .5s ease;
}

.hero-visual:hover img {
  transform: scale(1.02);
}

.hero-visual-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, rgba(20, 35, 44, .48), transparent 62%);
}

.hero-badge {
  position: absolute;
  left: 18px;
  bottom: 18px;
  background: rgba(255, 255, 255, .94);
  border-radius: 14px;
  padding: 12px 18px;
  box-shadow: 0 10px 24px rgba(0, 0, 0, .12);
  font-size: 13px;
  color: var(--muted);
  display: flex;
  gap: 14px;
  align-items: center;
  backdrop-filter: blur(6px);
}

.hero-badge span {
  display: flex;
  align-items: center;
  gap: 6px;
}

.hero-badge span::before {
  content: "";
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--accent);
}

.section {
  padding: 84px 0;
}

.section-head {
  display: flex;
  flex-direction: column;
  gap: 10px;
  margin-bottom: 34px;
  max-width: 720px;
}

.section-head h2 {
  font-size: clamp(24px, 3vw, 32px);
  letter-spacing: -0.02em;
}

.section-head p {
  color: var(--muted);
  font-size: 15px;
  line-height: 1.85;
}

.section-head.left {
  align-items: flex-start;
  text-align: left;
}

.head-tag {
  display: inline-block;
  align-self: flex-start;
  background: var(--primary-soft);
  color: var(--primary);
  border-radius: 999px;
  font-size: 12px;
  font-weight: 600;
  padding: 4px 12px;
  letter-spacing: .05em;
}

.bg-white {
  background: var(--surface);
}

.topic-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.topic-card {
  background: var(--surface);
  border: 1px solid transparent;
  border-radius: var(--radius-lg);
  padding: 28px;
  box-shadow: var(--shadow-sm);
  transition: all .25s ease;
  display: flex;
  flex-direction: column;
}

.topic-card:hover {
  box-shadow: var(--shadow-md);
  border-color: rgba(53, 97, 122, .12);
  transform: translateY(-4px);
}

.topic-icon {
  width: 54px;
  height: 54px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 15px;
  background: var(--primary-soft);
  color: var(--primary);
  margin-bottom: 20px;
}

.topic-card h3 {
  font-size: 19px;
  margin-bottom: 10px;
}

.topic-card > p {
  font-size: 14px;
  line-height: 1.85;
  color: var(--muted);
}

.topic-list {
  margin: 20px 0 24px;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.topic-list li {
  position: relative;
  padding-left: 20px;
  font-size: 14px;
  line-height: 1.7;
  color: var(--text);
}

.topic-list li::before {
  content: "";
  position: absolute;
  left: 3px;
  top: 10px;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--accent);
}

.topic-more {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  color: var(--primary);
  font-size: 14px;
  font-weight: 600;
  margin-top: auto;
}

.topic-more svg {
  transition: transform .2s ease;
}

.topic-more:hover {
  color: var(--primary-deep);
}

.topic-more:hover svg {
  transform: translateX(4px);
}

.path-section {
  background: var(--bg);
}

.path-list {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
  counter-reset: path;
}

.path-step {
  background: var(--surface);
  border-radius: var(--radius-lg);
  padding: 28px 24px;
  box-shadow: var(--shadow-sm);
  position: relative;
  border-top: 3px solid transparent;
  transition: border-color .25s ease, transform .25s ease;
}

.path-step:hover {
  border-color: var(--accent);
  transform: translateY(-4px);
}

.path-num {
  color: var(--primary-soft);
  font-size: 40px;
  font-weight: 800;
  line-height: 1;
  margin-bottom: 12px;
  display: block;
}

.path-step h3 {
  font-size: 17px;
  margin-bottom: 8px;
}

.path-step p {
  font-size: 14px;
  color: var(--muted);
  line-height: 1.8;
}

.safety-band {
  padding: 70px 0;
}

.safety-panel {
  background:
    linear-gradient(110deg, rgba(40, 78, 99, 0.95) 0 45%, rgba(53, 97, 122, 0.86) 100%),
    url('/assets/images/backpic/back-2.png') center / cover no-repeat;
  border-radius: 30px;
  padding: 52px;
  color: #fff;
  display: grid;
  grid-template-columns: 1.1fr .9fr;
  gap: 52px;
  box-shadow: 0 24px 60px rgba(40, 78, 99, .20);
}

.safety-left h2 {
  color: #fff;
  font-size: clamp(24px, 3vw, 32px);
}

.safety-left p {
  margin-top: 16px;
  font-size: 15px;
  line-height: 1.9;
  color: rgba(255, 255, 255, .86);
}

.safety-note {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(255, 255, 255, .12);
  border: 1px solid rgba(255, 255, 255, .18);
  border-radius: 999px;
  padding: 6px 14px;
  margin-top: 26px;
  font-size: 13px;
  color: rgba(255, 255, 255, .78);
}

.safety-checks {
  background: rgba(255, 255, 255, 0.09);
  border: 1px solid rgba(255, 255, 255, 0.14);
  border-radius: 22px;
  padding: 24px;
}

.safety-checks h3 {
  color: #fff;
  font-size: 16px;
  margin-bottom: 16px;
}

.safety-checks li {
  display: flex;
  gap: 10px;
  align-items: flex-start;
  padding: 9px 0;
  color: rgba(255, 255, 255, .9);
  font-size: 14px;
  line-height: 1.7;
}

.safety-checks li svg {
  flex: 0 0 auto;
  margin-top: 3px;
  color: var(--accent);
}

.split-section {
  padding: 84px 0;
}

.split-wrap {
  display: grid;
  grid-template-columns: 0.9fr 1.1fr;
  gap: 34px;
  align-items: stretch;
}

.split-visual {
  border-radius: 26px;
  overflow: hidden;
  min-height: 380px;
  box-shadow: var(--shadow-md);
  background: var(--primary-soft);
}

.split-visual img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.split-panel {
  background: var(--surface);
  border-radius: 26px;
  padding: 40px;
  box-shadow: var(--shadow-sm);
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.panel-kicker {
  background: var(--accent-soft);
  color: var(--accent-deep);
  display: inline-block;
  align-self: flex-start;
  padding: 4px 12px;
  border-radius: 999px;
  font-size: 12px;
  font-weight: 600;
  margin-bottom: 16px;
}

.split-panel h2 {
  font-size: clamp(22px, 2.6vw, 29px);
  letter-spacing: -0.02em;
  margin-bottom: 14px;
}

.split-panel > p {
  color: var(--muted);
  font-size: 15px;
  line-height: 1.9;
}

.quote-list {
  display: grid;
  gap: 12px;
  margin-top: 22px;
}

.quote-list li {
  background: var(--bg);
  border-left: 3px solid var(--accent);
  border-radius: 10px;
  padding: 12px 16px;
  font-size: 14px;
  color: var(--text);
  line-height: 1.75;
}

.faq-section {
  background: var(--surface);
  padding: 84px 0;
}

.faq-wrap {
  max-width: 840px;
  margin: 0 auto;
}

.faq-list {
  border-bottom: 1px solid var(--border);
}

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

.faq-item[open] {
  background: #fbfdfe;
}

.faq-summary {
  list-style: none;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  width: 100%;
  text-align: left;
  padding: 20px 6px;
  font-size: 16px;
  font-weight: 600;
  color: var(--text);
  cursor: pointer;
  border-radius: 8px;
  transition: background .2s ease;
}

.faq-summary::-webkit-details-marker {
  display: none;
}

.faq-summary:hover {
  color: var(--primary);
}

.faq-icon {
  width: 30px;
  height: 30px;
  flex: 0 0 auto;
  border-radius: 50%;
  border: 1px solid var(--border);
  background: #fff;
  color: var(--primary);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: transform .25s ease, background .2s ease, border-color .2s ease;
}

.faq-item[open] .faq-icon {
  transform: rotate(45deg);
  background: var(--primary);
  color: #fff;
  border-color: var(--primary);
}

.faq-answer {
  padding: 0 6px 22px;
  color: var(--muted);
  font-size: 15px;
  line-height: 1.95;
  max-width: 96%;
}

.cta-section {
  padding: 84px 0;
}

.cta-panel {
  background: var(--primary-soft);
  border: 1px solid rgba(53, 97, 122, 0.08);
  border-radius: 30px;
  padding: 48px 52px;
  display: grid;
  grid-template-columns: 1.3fr .7fr;
  gap: 40px;
  align-items: center;
}

.cta-copy h2 {
  font-size: clamp(22px, 2.8vw, 30px);
  letter-spacing: -0.02em;
  margin-bottom: 12px;
}

.cta-copy p {
  color: var(--muted);
  font-size: 15px;
  line-height: 1.9;
  max-width: 640px;
}

.cta-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.site-footer {
  background: var(--surface);
  border-top: 1px solid var(--border);
  padding: 52px 0 28px;
  margin-top: auto;
}

.footer-main {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 40px;
  padding-bottom: 36px;
}

.logo-line {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 16px;
  font-weight: 700;
  color: var(--text);
}

.logo-line svg {
  color: var(--primary);
}

.footer-brand p {
  margin-top: 16px;
  font-size: 13px;
  line-height: 1.85;
  color: var(--faint);
  max-width: 360px;
}

.footer-col {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.footer-col h4 {
  font-size: 14px;
  font-weight: 600;
  color: var(--text);
  margin-bottom: 6px;
}

.footer-col a {
  color: var(--muted);
  font-size: 13px;
  line-height: 1.7;
  transition: color .2s ease;
}

.footer-col a:hover {
  color: var(--primary);
}

.footer-bottom {
  border-top: 1px solid var(--border);
  padding-top: 24px;
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 12px;
  font-size: 12px;
  color: var(--faint);
}

@media (max-width: 1200px) {
  .hero-grid {
    gap: 40px;
  }

  .topic-grid {
    gap: 18px;
  }

  .topic-card {
    padding: 22px;
  }

  .footer-main {
    grid-template-columns: 1.6fr 1fr 1fr;
  }
}

@media (max-width: 1024px) {
  .layout {
    display: block;
  }

  .sidebar {
    transform: translateX(-105%);
    box-shadow: 24px 0 60px rgba(30, 50, 65, 0.12);
  }

  body.menu-open {
    overflow: hidden;
  }

  body.menu-open .sidebar {
    transform: translateX(0);
  }

  body.menu-open .drawer-backdrop {
    display: block;
    position: fixed;
    inset: 0;
    z-index: 70;
    background: rgba(32, 48, 60, 0.4);
    border: none;
    backdrop-filter: blur(2px);
  }

  .side-close {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 34px;
    height: 34px;
    border-radius: 10px;
    border: 1px solid var(--border);
    background: var(--surface);
    color: var(--text);
    cursor: pointer;
    position: absolute;
    top: 20px;
    right: 18px;
  }

  .side-close:hover {
    background: var(--primary-soft);
    color: var(--primary);
  }

  .side-inner {
    padding-top: 56px;
  }

  .main-wrap {
    width: 100%;
    margin-left: 0;
  }

  .topbar {
    position: sticky;
    top: 0;
    z-index: 55;
    background: rgba(255, 255, 255, 0.92);
    backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--border);
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 14px 20px;
  }

  .topbar-logo {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    color: var(--text);
    font-size: 16px;
    font-weight: 700;
  }

  .topbar-logo svg {
    color: var(--primary);
  }

  .nav-burger {
    display: inline-flex;
    flex-direction: column;
    justify-content: center;
    gap: 5px;
    width: 44px;
    height: 44px;
    align-items: center;
    border-radius: 10px;
    background: var(--primary-soft);
    border: none;
    cursor: pointer;
  }

  .nav-burger span {
    display: block;
    width: 18px;
    height: 2px;
    border-radius: 2px;
    background: var(--primary);
    transition: transform .2s ease, opacity .2s ease;
  }

  .page-hero {
    padding: 48px 0 52px;
  }

  .section {
    padding: 64px 0;
  }

  .path-list {
    grid-template-columns: repeat(2, 1fr);
  }

  .safety-panel {
    grid-template-columns: 1fr;
    padding: 38px;
  }

  .split-wrap {
    grid-template-columns: 1fr;
  }

  .cta-panel {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 768px) {
  .container {
    padding-left: 18px;
    padding-right: 18px;
  }

  .hero-grid {
    grid-template-columns: 1fr;
    gap: 32px;
  }

  .hero-title {
    font-size: 34px;
  }

  .hero-visual {
    aspect-ratio: 4 / 3.4;
    min-height: 0;
  }

  .topic-grid {
    grid-template-columns: 1fr;
    gap: 16px;
  }

  .topic-card {
    padding: 22px;
  }

  .path-list {
    grid-template-columns: 1fr;
    gap: 14px;
  }

  .path-step {
    padding: 20px;
  }

  .safety-panel {
    padding: 28px 22px;
    border-radius: 22px;
  }

  .safety-checks {
    padding: 18px;
  }

  .split-panel {
    padding: 28px 22px;
    border-radius: 18px;
  }

  .qa {
    font-size: 15px;
  }
}

@media (max-width: 560px) {
  .hero-actions {
    flex-direction: column;
    width: 100%;
  }

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

  .page-hero {
    padding: 38px 0 42px;
  }

  .section-head {
    margin-bottom: 24px;
  }

  .cta-panel {
    padding: 30px 22px;
    border-radius: 22px;
  }

  .footer-main {
    grid-template-columns: 1fr 1fr;
    gap: 28px 20px;
  }

  .footer-brand {
    grid-column: 1 / -1;
  }

  .cta-actions {
    flex-direction: column;
    width: 100%;
  }

  .cta-actions .btn {
    width: 100%;
  }

  .hero-counters {
    gap: 8px;
  }
}

/* roulang page: category1 */
:root {
      --primary: #3D6E8C;
      --primary-dark: #2A4F64;
      --primary-light: #E5EEF4;
      --accent: #CE9254;
      --accent-soft: #F8EBDD;
      --bg: #F5F8FA;
      --card: #FFFFFF;
      --text: #21323D;
      --muted: #5D6E7A;
      --faint: #93A4B0;
      --border: #DCE7EE;
      --radius: 18px;
      --radius-sm: 10px;
      --shadow: 0 6px 22px rgba(40, 60, 75, 0.06);
      --shadow-md: 0 14px 34px rgba(40, 60, 75, 0.1);
      --container: 1160px;
    }

    * {
      box-sizing: border-box;
    }

    html {
      scroll-behavior: smooth;
    }

    body {
      margin: 0;
      background: var(--bg);
      color: var(--text);
      font-family: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans CJK SC", "Source Han Sans SC", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
      font-size: 16px;
      line-height: 1.75;
    }

    a {
      color: var(--primary);
      text-decoration: none;
      transition: color .2s ease, background-color .2s ease, border-color .2s ease;
    }

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

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

    h1, h2, h3, h4, p, ul, ol, blockquote {
      margin: 0;
    }

    ul, ol {
      padding: 0;
      list-style: none;
    }

    :focus-visible {
      outline: 2px solid var(--primary);
      outline-offset: 2px;
    }

    .main-content {
      margin-left: 260px;
      min-height: 100vh;
    }

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

    .mobile-topbar {
      display: none;
    }

    .mobile-scrim {
      display: none;
    }

    .app-side {
      position: fixed;
      top: 0;
      left: 0;
      bottom: 0;
      width: 260px;
      background: #fff;
      border-right: 1px solid var(--border);
      padding: 26px 18px;
      display: flex;
      flex-direction: column;
      z-index: 150;
    }

    .side-brand .logo-line {
      display: inline-flex;
      align-items: center;
      gap: 9px;
      font-size: 20px;
      font-weight: 700;
      color: var(--text);
    }

    .side-brand .logo-line:hover {
      color: var(--primary);
    }

    .side-sub {
      margin-top: 6px;
      font-size: 12px;
      color: var(--faint);
      padding-left: 27px;
    }

    .app-side .side-nav {
      margin-top: 34px;
      display: flex;
      flex-direction: column;
      gap: 6px;
    }

    .nav-label {
      font-size: 12px;
      color: var(--faint);
      letter-spacing: 0.06em;
      padding: 0 12px;
      margin-bottom: 8px;
    }

    .nav-item {
      display: flex;
      align-items: center;
      gap: 11px;
      padding: 11px 13px;
      border-radius: var(--radius-sm);
      color: var(--muted);
      font-size: 15px;
      font-weight: 500;
      border: 1px solid transparent;
    }

    .nav-item svg {
      flex: none;
      opacity: 0.85;
    }

    .nav-item:hover {
      background: var(--primary-light);
      color: var(--primary-dark);
    }

    .nav-item.active {
      background: var(--primary-light);
      color: var(--primary-dark);
      font-weight: 600;
      box-shadow: inset 3px 0 0 var(--primary);
    }

    .side-footnote {
      margin-top: auto;
      padding: 18px 12px 4px;
      border-top: 1px solid var(--border);
      color: var(--faint);
      font-size: 12px;
      line-height: 1.6;
    }

    .cat-hero {
      position: relative;
      background-color: #EFF5F8;
      background-image: linear-gradient(100deg, rgba(255, 255, 255, 0.94) 20%, rgba(241, 247, 250, 0.9) 70%, rgba(232, 241, 246, 0.82) 100%), url("/assets/images/backpic/back-2.png");
      background-position: center;
      background-size: cover;
      border-bottom: 1px solid var(--border);
      padding: 72px 0 64px;
    }

    .cat-hero-grid {
      display: grid;
      grid-template-columns: minmax(0, 1fr) 310px;
      gap: 48px;
      align-items: center;
    }

    .site-tag {
      display: inline-flex;
      align-items: center;
      gap: 6px;
      padding: 6px 12px;
      border-radius: 100px;
      background: rgba(61, 110, 140, 0.1);
      border: 1px solid rgba(61, 110, 140, 0.22);
      color: var(--primary-dark);
      font-size: 13px;
      font-weight: 500;
    }

    .cat-hero h1 {
      font-size: clamp(32px, 5vw, 50px);
      line-height: 1.2;
      font-weight: 700;
      margin-top: 18px;
      letter-spacing: -0.01em;
      color: #1B2C36;
    }

    .cat-hero-lead {
      margin-top: 18px;
      max-width: 640px;
      color: var(--muted);
      font-size: 16px;
    }

    .hero-actions {
      display: flex;
      flex-wrap: wrap;
      gap: 14px;
      margin-top: 30px;
    }

    .btn {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      gap: 8px;
      min-height: 46px;
      padding: 11px 22px;
      border-radius: var(--radius-sm);
      font-size: 15px;
      font-weight: 600;
      line-height: 1.2;
      transition: transform .2s ease, box-shadow .2s ease, background-color .2s ease;
    }

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

    .btn-primary:hover {
      background: var(--primary-dark);
      color: #fff;
      transform: translateY(-2px);
      box-shadow: 0 10px 22px rgba(42, 79, 100, 0.22);
    }

    .btn-outline {
      background: #fff;
      color: var(--primary-dark);
      border: 1px solid rgba(61, 110, 140, 0.33);
    }

    .btn-outline:hover {
      border-color: var(--primary);
      background: var(--primary-light);
      transform: translateY(-2px);
    }

    .cat-hero-visual {
      display: flex;
      flex-direction: column;
      gap: 12px;
    }

    .hero-media {
      position: relative;
      border-radius: 22px;
      overflow: hidden;
      box-shadow: var(--shadow-md);
      background: #fff;
      padding: 8px;
    }

    .hero-media img {
      width: 100%;
      aspect-ratio: 4 / 5;
      object-fit: cover;
      border-radius: 16px;
    }

    .media-badge {
      position: absolute;
      top: 22px;
      left: 22px;
      padding: 6px 12px;
      border-radius: 100px;
      background: rgba(255, 255, 255, 0.92);
      color: var(--primary-dark);
      font-size: 13px;
      font-weight: 600;
      box-shadow: 0 4px 12px rgba(24, 42, 54, 0.12);
    }

    .media-caption {
      min-height: 46px;
      padding: 8px 6px 0 6px;
      font-size: 13px;
      color: var(--muted);
      line-height: 1.5;
    }

    .section-pad {
      padding: 78px 0;
    }

    .section-pad.tight {
      padding: 56px 0;
    }

    .section-eyebrow {
      display: inline-block;
      color: var(--primary);
      font-size: 13px;
      font-weight: 700;
      letter-spacing: 0.04em;
      margin-bottom: 10px;
    }

    .section-head {
      max-width: 720px;
      margin-bottom: 36px;
    }

    .section-head h2 {
      font-size: clamp(25px, 3.2vw, 34px);
      line-height: 1.3;
      font-weight: 700;
      color: #1B2C36;
    }

    .section-head p {
      margin-top: 12px;
      color: var(--muted);
    }

    .about-split {
      display: grid;
      grid-template-columns: minmax(0, 1.05fr) minmax(0, 1fr);
      gap: 52px;
      align-items: center;
    }

    .about-media {
      border-radius: var(--radius);
      overflow: hidden;
      box-shadow: var(--shadow-md);
    }

    .about-media img {
      width: 100%;
      aspect-ratio: 4 / 3;
      object-fit: cover;
    }

    .about-copy h2 {
      font-size: clamp(24px, 2.8vw, 31px);
      line-height: 1.4;
      font-weight: 700;
      color: #1B2C36;
    }

    .about-copy p {
      margin-top: 18px;
      color: var(--muted);
    }

    .about-copy blockquote {
      margin-top: 22px;
      padding: 15px 18px;
      border-left: 3px solid var(--primary);
      background: var(--primary-light);
      border-radius: 0 12px 12px 0;
      color: var(--primary-dark);
      font-size: 15px;
    }

    .coverage {
      background: #EDF2F6;
    }

    .coverage-grid {
      display: grid;
      grid-template-columns: repeat(4, minmax(0, 1fr));
      gap: 20px;
    }

    .coverage-card {
      background: #fff;
      border: 1px solid var(--border);
      border-radius: var(--radius);
      padding: 26px 22px;
      box-shadow: var(--shadow);
      transition: transform .2s ease, box-shadow .2s ease;
    }

    .coverage-card:hover {
      transform: translateY(-4px);
      box-shadow: var(--shadow-md);
    }

    .coverage-icon {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      width: 44px;
      height: 44px;
      border-radius: 12px;
      background: var(--primary-light);
      color: var(--primary-dark);
      margin-bottom: 16px;
    }

    .coverage-card h3 {
      font-size: 17px;
      font-weight: 700;
      margin-bottom: 10px;
      color: #1B2C36;
    }

    .coverage-card p {
      font-size: 14px;
      color: var(--muted);
      line-height: 1.7;
    }

    .process-list {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 20px;
      margin-top: 30px;
    }

    .process-step {
      background: #fff;
      border: 1px solid var(--border);
      border-radius: var(--radius);
      padding: 26px 22px;
      position: relative;
    }

    .step-num {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      width: 34px;
      height: 34px;
      border-radius: 50%;
      background: var(--primary);
      color: #fff;
      font-size: 15px;
      font-weight: 700;
    }

    .process-step h3 {
      margin-top: 18px;
      font-size: 17px;
      color: #1B2C36;
    }

    .process-step p {
      margin-top: 9px;
      font-size: 14px;
      color: var(--muted);
      line-height: 1.75;
    }

    .boundary {
      background: #fff;
      border-top: 1px solid var(--border);
    }

    .table-scroll {
      overflow-x: auto;
      margin-top: 28px;
    }

    .info-table {
      width: 100%;
      border-collapse: collapse;
      min-width: 620px;
      border-radius: var(--radius);
      overflow: hidden;
      border: 1px solid var(--border);
    }

    .info-table th,
    .info-table td {
      padding: 16px 18px;
      text-align: left;
      border-bottom: 1px solid var(--border);
      font-size: 15px;
      vertical-align: top;
    }

    .info-table th {
      background: #EFF4F8;
      font-weight: 600;
      color: var(--primary-dark);
    }

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

    .info-table td:first-child {
      color: #1B2C36;
      font-weight: 600;
    }

    .adjacent-grid {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 20px;
    }

    .adjacent-card {
      background: #fff;
      border: 1px solid var(--border);
      border-radius: var(--radius);
      padding: 28px;
      transition: transform .2s ease, box-shadow .2s ease, border-color .2s ease;
    }

    .adjacent-card:hover {
      transform: translateY(-3px);
      box-shadow: var(--shadow-md);
      border-color: rgba(61, 110, 140, 0.34);
    }

    .adjacent-card h3 {
      font-size: 17px;
      margin-bottom: 8px;
      color: #1B2C36;
    }

    .adjacent-card p {
      color: var(--muted);
      font-size: 14px;
    }

    .adjacent-card .more-link {
      display: inline-flex;
      align-items: center;
      gap: 5px;
      margin-top: 16px;
      font-size: 14px;
      font-weight: 600;
    }

    .faq-section {
      background: #F5F8FA;
    }

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

    .faq-item {
      border-bottom: 1px solid var(--border);
      background: #fff;
    }

    .faq-item summary {
      position: relative;
      padding: 22px 54px 22px 22px;
      font-size: 16px;
      font-weight: 600;
      color: #1B2C36;
      line-height: 1.6;
      cursor: pointer;
      list-style: none;
      transition: color .2s ease, background-color .2s ease;
      border-radius: 0;
    }

    .faq-item summary::-webkit-details-marker {
      display: none;
    }

    .faq-item summary::after {
      content: "＋";
      position: absolute;
      right: 22px;
      top: 20px;
      width: 30px;
      height: 30px;
      display: inline-flex;
      align-items: center;
      justify-content: center;
      border-radius: 50%;
      background: var(--primary-light);
      color: var(--primary-dark);
      font-size: 20px;
      font-weight: 400;
      transition: transform .2s ease, background-color .2s ease;
    }

    .faq-item summary:hover {
      background: #F6F9FB;
    }

    .faq-item[open] summary {
      color: var(--primary-dark);
      border-bottom: 1px solid var(--border);
    }

    .faq-item[open] summary::after {
      transform: rotate(45deg);
      background: var(--primary);
      color: #fff;
    }

    .faq-answer {
      padding: 6px 24px 24px 22px;
      color: var(--muted);
      font-size: 15px;
    }

    .cta-band {
      background: var(--primary-dark);
      color: #fff;
      border-radius: var(--radius);
      padding: 48px 42px;
      margin: 0 0 80px 0;
      display: flex;
      flex-direction: column;
      align-items: flex-start;
      position: relative;
      overflow: hidden;
    }

    .cta-band::after {
      content: "";
      position: absolute;
      right: -50px;
      top: -50px;
      width: 240px;
      height: 240px;
      border-radius: 50%;
      background: rgba(255, 255, 255, 0.06);
    }

    .cta-band h2 {
      font-size: clamp(23px, 2.8vw, 30px);
      line-height: 1.35;
      font-weight: 700;
    }

    .cta-band p {
      margin-top: 12px;
      max-width: 660px;
      color: rgba(255, 255, 255, 0.82);
      font-size: 15px;
    }

    .cta-links {
      display: flex;
      flex-wrap: wrap;
      gap: 14px;
      margin-top: 24px;
    }

    .cta-links .btn-primary {
      background: #fff;
      color: var(--primary-dark);
    }

    .cta-links .btn-primary:hover {
      background: var(--accent-soft);
    }

    .cta-links .btn-outline {
      background: transparent;
      color: #fff;
      border-color: rgba(255, 255, 255, 0.55);
    }

    .cta-links .btn-outline:hover {
      background: rgba(255, 255, 255, 0.12);
      border-color: #fff;
    }

    .site-footer {
      border-top: 1px solid var(--border);
      background: #EAF0F4;
      padding: 52px 0 34px;
    }

    .site-footer .footer-main {
      display: grid;
      grid-template-columns: 1.8fr .8fr .8fr .9fr;
      gap: 40px;
      margin-bottom: 34px;
    }

    .footer-brand .logo-line {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      font-size: 19px;
      font-weight: 700;
      color: var(--text);
    }

    .footer-brand p {
      margin-top: 14px;
      color: var(--muted);
      font-size: 13px;
      line-height: 1.8;
      max-width: 360px;
    }

    .footer-col {
      display: flex;
      flex-direction: column;
      gap: 10px;
    }

    .footer-col h4 {
      color: #1B2C36;
      font-size: 15px;
      margin-bottom: 6px;
    }

    .footer-col a {
      color: var(--muted);
      font-size: 14px;
    }

    .footer-col a:hover {
      color: var(--primary);
    }

    .footer-bottom {
      border-top: 1px solid var(--border);
      padding-top: 22px;
      display: flex;
      flex-wrap: wrap;
      justify-content: space-between;
      gap: 10px;
      color: var(--faint);
      font-size: 13px;
    }

    @media (max-width: 1100px) {
      .coverage-grid {
        grid-template-columns: repeat(2, 1fr);
      }

      .process-list {
        grid-template-columns: repeat(2, 1fr);
      }
    }

    @media (max-width: 1024px) {
      body {
        padding-top: 0;
      }

      .main-content {
        margin-left: 0;
        padding-top: 64px;
      }

      .app-side {
        transform: translateX(-105%);
        transition: transform .26s ease, box-shadow .26s ease;
        box-shadow: none;
      }

      body.nav-open .app-side {
        transform: translateX(0);
        box-shadow: 0 0 60px rgba(20, 35, 44, 0.2);
      }

      body.nav-open .mobile-scrim {
        display: block;
        position: fixed;
        inset: 0;
        background: rgba(20, 30, 38, 0.42);
        z-index: 130;
      }

      body.nav-open {
        overflow: hidden;
      }

      .mobile-topbar {
        display: flex;
        align-items: center;
        justify-content: space-between;
        position: fixed;
        top: 0;
        left: 0;
        right: 0;
        width: 100%;
        height: 64px;
        background: rgba(255, 255, 255, 0.96);
        border-bottom: 1px solid var(--border);
        z-index: 160;
        padding: 0 18px;
      }

      .mobile-logo {
        display: inline-flex;
        align-items: center;
        gap: 8px;
        font-weight: 700;
        color: #1B2C36;
        font-size: 18px;
      }

      .menu-toggle {
        display: inline-flex;
        align-items: center;
        justify-content: center;
        width: 42px;
        height: 42px;
        border-radius: 10px;
        color: var(--text);
        border: 1px solid var(--border);
        background: #fff;
      }

      .menu-toggle:hover {
        background: var(--primary-light);
      }

      .cat-hero {
        padding: 54px 0 48px;
      }

      .cat-hero-grid {
        grid-template-columns: 1fr;
        gap: 32px;
      }

      .media-caption {
        padding: 0;
      }

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

    @media (max-width: 768px) {
      .section-pad {
        padding: 56px 0;
      }

      .about-split {
        grid-template-columns: 1fr;
        gap: 28px;
      }

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

      .process-list {
        grid-template-columns: 1fr;
      }

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

      .cta-band {
        padding: 32px 24px;
        margin-bottom: 46px;
      }

      .site-footer .footer-main {
        grid-template-columns: 1fr;
        gap: 30px;
      }

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

    @media (max-width: 520px) {
      .container {
        padding-inline: 18px;
      }

      .cat-hero h1 {
        font-size: 30px;
      }

      .hero-actions,
      .cta-links {
        flex-direction: column;
        align-items: stretch;
      }

      .btn {
        width: 100%;
      }

      .table-scroll {
        margin-left: -8px;
        margin-right: -8px;
      }
    }