/* roulang page: index */
:root{
  --paper:#F6F4EF;
  --surface:#FFFFFF;
  --deep:#123B32;
  --deep-2:#0B2A23;
  --sand:#D9CFBE;
  --sand-soft:#EDE7DC;
  --clay:#A8553A;
  --ink:#14171A;
  --ink-2:#3A403C;
  --muted:#767C77;
  --line:#DCD8CE;
  --ok:#3F6E52;
  --warn:#8A6A22;
  --font-serif:'Noto Serif SC','Source Han Serif SC','Songti SC','SimSun',serif;
  --font-sans:'PingFang SC','Hiragino Sans GB','Microsoft YaHei','Helvetica Neue',Arial,sans-serif;
  --fs-display:clamp(38px,5.2vw,64px);
  --fs-h1:clamp(30px,3.4vw,46px);
  --fs-h2:clamp(24px,2.4vw,34px);
  --fs-h3:20px;
  --fs-body:16px;
  --fs-meta:13px;
  --radius:6px;
  --radius-sm:2px;
  --ease:cubic-bezier(.22,.61,.36,1);
  --dur:220ms;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--paper);
  color:var(--ink);
  font-family:var(--font-sans);
  font-size:var(--fs-body);
  line-height:1.85;
  -webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4,p,figure,blockquote{margin:0;}
ul,ol{margin:0;padding:0;list-style:none;}
img{max-width:100%;display:block;height:auto;}
a{color:inherit;text-decoration:none;transition:color var(--dur) var(--ease);}
button{font-family:inherit;font-size:inherit;color:inherit;cursor:pointer;}
input{font-family:inherit;font-size:inherit;}
:focus-visible{outline:2px solid var(--clay);outline-offset:2px;}
.container{max-width:1240px;margin:0 auto;padding:0 24px;width:100%;}

/* ---------- header / nav ---------- */
.site-header{
  position:relative;
  z-index:70;
  background:var(--paper);
  border-bottom:1px solid var(--line);
}
.nav{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:28px;
  height:64px;
}
.brand{
  display:inline-flex;
  align-items:center;
  gap:10px;
  font-family:var(--font-serif);
  font-size:20px;
  font-weight:700;
  letter-spacing:.04em;
  color:var(--deep);
  flex:0 0 auto;
}
.brand-mark{
  width:32px;height:32px;
  display:inline-flex;align-items:center;justify-content:center;
  background:var(--deep);
  border-radius:var(--radius-sm);
  color:var(--paper);
  font-family:var(--font-serif);
  font-size:16px;
  font-weight:700;
  letter-spacing:0;
}
.nav-links{display:flex;align-items:center;gap:30px;margin-left:8px;margin-right:auto;}
.nav-link{
  position:relative;
  display:inline-block;
  padding:6px 0;
  font-size:15px;
  color:var(--ink-2);
  transition:color var(--dur) var(--ease);
}
.nav-link::after{
  content:"";
  position:absolute;
  left:0;bottom:0;
  width:100%;height:2px;
  background:var(--deep);
  transform:scaleX(0);
  transform-origin:left center;
  transition:transform var(--dur) var(--ease);
}
.nav-link:hover{color:var(--deep);}
.nav-link:hover::after{transform:scaleX(1);}
.nav-link.is-active{color:var(--deep);}
.nav-link.is-active::after{transform:scaleX(1);}
.nav-right{display:flex;align-items:center;gap:14px;flex:0 0 auto;}
.icon-btn{
  width:40px;height:40px;
  display:inline-flex;align-items:center;justify-content:center;
  background:transparent;
  border:1px solid var(--line);
  border-radius:var(--radius-sm);
  color:var(--ink-2);
  transition:border-color var(--dur) var(--ease),color var(--dur) var(--ease),background var(--dur) var(--ease);
}
.icon-btn:hover{border-color:var(--deep);color:var(--deep);background:var(--sand-soft);}
.icon-btn svg{width:17px;height:17px;}
.menu-toggle{
  display:none;
  width:44px;height:44px;
  align-items:center;justify-content:center;
  background:transparent;
  border:1px solid var(--line);
  border-radius:var(--radius-sm);
  color:var(--deep);
}
.menu-toggle svg{width:20px;height:20px;}

/* buttons */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  padding:14px 28px;
  border-radius:var(--radius-sm);
  border:1px solid transparent;
  font-size:15px;
  line-height:1.2;
  font-weight:500;
  letter-spacing:.02em;
  transition:background var(--dur) var(--ease),color var(--dur) var(--ease),border-color var(--dur) var(--ease),transform 120ms var(--ease);
}
.btn-primary{background:var(--deep);color:var(--paper);border-bottom:2px solid transparent;}
.btn-primary:hover{background:var(--deep-2);border-bottom:2px solid var(--clay);}
.btn-primary:active{transform:translateY(1px);}
.btn-sm{padding:10px 20px;font-size:14px;}
.btn-ghost{background:transparent;color:var(--ink);border:1px solid var(--line);}
.btn-ghost:hover{border-color:var(--deep);color:var(--deep);}
.btn-ghost:active{transform:translateY(1px);}
.btn-full{width:100%;}

.text-link{
  display:inline-flex;
  align-items:center;
  gap:6px;
  font-size:15px;
  color:var(--deep);
  position:relative;
  padding-bottom:2px;
}
.text-link::after{
  content:"";
  position:absolute;
  left:0;bottom:0;
  width:100%;height:1px;
  background:var(--deep);
  transform:scaleX(0);
  transform-origin:left center;
  transition:transform var(--dur) var(--ease);
}
.text-link:hover::after{transform:scaleX(1);}
.text-link svg{width:14px;height:14px;transition:transform var(--dur) var(--ease);}
.text-link:hover svg{transform:translateX(4px);}

/* drawer */
.nav-drawer{
  display:none;
  position:fixed;
  left:0;right:0;top:56px;bottom:0;
  background:var(--paper);
  border-top:1px solid var(--line);
  padding:8px 20px 28px;
  overflow-y:auto;
  opacity:0;
  transform:translateY(-8px);
  pointer-events:none;
  transition:opacity var(--dur) var(--ease),transform var(--dur) var(--ease);
  z-index:65;
}
.nav-drawer.is-open{opacity:1;transform:none;pointer-events:auto;}
.nav-drawer a{
  display:flex;
  align-items:center;
  height:48px;
  border-bottom:1px solid var(--line);
  font-size:16px;
  color:var(--ink);
}
.nav-drawer a.is-active{color:var(--deep);font-weight:600;}
.nav-drawer .drawer-cta{margin-top:20px;}

/* ---------- hero ---------- */
.hero{padding:64px 0 80px;}
.hero-grid{
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:56px;
  align-items:center;
}
.eyebrow{
  display:inline-flex;
  align-items:center;
  gap:10px;
  font-size:var(--fs-meta);
  letter-spacing:.06em;
  color:var(--muted);
}
.eyebrow::before{
  content:"";
  width:2px;height:14px;
  background:var(--clay);
  display:inline-block;
}
.hero-title{
  font-family:var(--font-serif);
  font-size:var(--fs-display);
  line-height:1.08;
  letter-spacing:-.02em;
  font-weight:700;
  color:var(--deep);
  margin:20px 0 0;
}
.hero-title em{
  font-style:normal;
  position:relative;
  display:inline-block;
}
.hero-title em::after{
  content:"";
  position:absolute;
  left:0;right:0;bottom:6px;
  height:6px;
  background:var(--sand);
  z-index:-1;
}
.hero-sub{
  margin-top:22px;
  font-size:18px;
  line-height:1.8;
  color:var(--ink-2);
  max-width:33em;
}
.hero-actions{
  display:flex;
  align-items:center;
  gap:20px;
  margin-top:34px;
  flex-wrap:wrap;
}
.hero-stats{
  display:grid;
  grid-template-columns:repeat(3,1fr);
  gap:24px;
  margin-top:44px;
  padding-top:24px;
  border-top:1px solid var(--line);
}
.stat-num{
  font-family:var(--font-serif);
  font-size:32px;
  line-height:1.1;
  color:var(--deep);
  font-weight:700;
  letter-spacing:-.01em;
}
.stat-num small{font-size:15px;font-family:var(--font-sans);font-weight:400;color:var(--ink-2);margin-left:2px;}
.stat-label{font-size:12px;color:var(--muted);margin-top:6px;letter-spacing:.04em;}
.hero-figure{position:relative;}
.hero-figure img{
  width:100%;
  aspect-ratio:4/5;
  object-fit:cover;
  border:1px solid var(--line);
  border-radius:var(--radius);
}
.fig-tag{
  position:absolute;
  left:16px;bottom:16px;
  background:rgba(255,255,255,.88);
  color:var(--ink-2);
  font-size:13px;
  padding:6px 12px;
  border-radius:var(--radius-sm);
  letter-spacing:.04em;
  backdrop-filter:blur(2px);
}

/* ---------- statement ---------- */
.statement{padding:96px 0;}
.statement-inner{
  display:grid;
  grid-template-columns:1fr auto;
  gap:32px;
  align-items:end;
}
.statement h2{
  font-family:var(--font-serif);
  font-size:clamp(26px,3vw,32px);
  line-height:1.5;
  font-weight:700;
  letter-spacing:-.01em;
  color:var(--deep);
  max-width:22em;
}
.statement .side-note{
  font-size:var(--fs-meta);
  color:var(--muted);
  letter-spacing:.06em;
  white-space:nowrap;
  padding-bottom:8px;
}

/* ---------- sections ---------- */
.section{padding:96px 0;}
.section.tight{padding:64px 0;}
.section-head{
  display:flex;
  align-items:flex-end;
  justify-content:space-between;
  gap:24px;
  margin-bottom:44px;
  flex-wrap:wrap;
}
.section-head h2{
  font-family:var(--font-serif);
  font-size:var(--fs-h2);
  line-height:1.25;
  color:var(--deep);
  font-weight:700;
  margin-top:14px;
  letter-spacing:-.01em;
}
.section-lead{
  font-size:16px;
  color:var(--ink-2);
  max-width:38em;
  margin-top:14px;
}

/* story */
.story-grid{
  display:grid;
  grid-template-columns:5fr 7fr;
  gap:56px;
  align-items:start;
}
.story-figure img{
  width:100%;
  aspect-ratio:4/5;
  object-fit:cover;
  border:1px solid var(--line);
  border-radius:var(--radius);
}
.story-body h2{
  font-family:var(--font-serif);
  font-size:var(--fs-h2);
  line-height:1.3;
  color:var(--deep);
  font-weight:700;
  margin-bottom:22px;
  letter-spacing:-.01em;
}
.story-body p{
  font-size:16px;
  line-height:1.9;
  color:var(--ink-2);
  margin-bottom:18px;
}
.timeline{
  display:grid;
  grid-template-columns:repeat(4,1fr);
  gap:16px;
  margin-top:34px;
  padding-top:20px;
  border-top:1px solid var(--line);
}
.tl-label{font-size:var(--fs-meta);color:var(--muted);letter-spacing:.04em;}
.tl-title{font-size:15px;color:var(--ink);margin-top:6px;line-height:1.5;}

/* rows */
.rows{border-top:1px solid var(--line);}
.row-item{
  display:grid;
  grid-template-columns:64px 1fr 32px;
  gap:28px;
  align-items:center;
  padding:28px 16px;
  border-bottom:1px solid var(--line);
  transition:background var(--dur) var(--ease);
}
.row-item:hover{background:var(--sand-soft);}
.row-num{
  font-family:var(--font-serif);
  font-size:28px;
  line-height:1;
  color:var(--clay);
  transition:color var(--dur) var(--ease);
}
.row-item:hover .row-num{color:var(--deep);}
.row-title{
  font-family:var(--font-serif);
  font-size:22px;
  line-height:1.4;
  color:var(--ink);
  font-weight:700;
  margin-bottom:6px;
}
.row-desc{font-size:16px;color:var(--ink-2);line-height:1.8;}
.row-arrow{color:var(--muted);transition:transform var(--dur) var(--ease),color var(--dur) var(--ease);}
.row-arrow svg{width:20px;height:20px;}
.row-item:hover .row-arrow{transform:translateX(4px);color:var(--deep);}

/* feature cards */
.feature-grid{
  display:grid;
  grid-template-columns:8fr 4fr;
  gap:32px;
  align-items:start;
}
.feat-main{
  display:grid;
  grid-template-columns:1fr 1fr;
  border:1px solid var(--line);
  border-radius:var(--radius);
  overflow:hidden;
  background:var(--surface);
  transition:transform var(--dur) var(--ease),box-shadow var(--dur) var(--ease);
}
.feat-main:hover{transform:translateY(-2px);box-shadow:0 18px 40px -24px rgba(18,59,50,.22);}
.feat-main .feat-media{overflow:hidden;height:100%;}
.feat-main .feat-media img{
  width:100%;height:100%;
  aspect-ratio:3/2;
  object-fit:cover;
  transition:transform 360ms var(--ease);
}
.feat-main:hover .feat-media img{transform:scale(1.03);}
.feat-main .feat-body{
  padding:30px 28px;
  display:flex;
  flex-direction:column;
  gap:14px;
  justify-content:center;
}
.feat-main h3{
  font-family:var(--font-serif);
  font-size:22px;
  line-height:1.45;
  color:var(--ink);
  font-weight:700;
}
.feat-main p{font-size:15px;color:var(--ink-2);line-height:1.8;}
.feat-side{display:flex;flex-direction:column;gap:0;}
.feat-side .side-card{
  padding:24px 0;
  border-top:1px solid var(--line);
  transition:background var(--dur) var(--ease);
}
.feat-side .side-card:last-child{border-bottom:1px solid var(--line);}
.feat-side .side-card:hover h3{color:var(--deep);}
.feat-side h3{
  font-family:var(--font-serif);
  font-size:18px;
  line-height:1.5;
  color:var(--ink);
  font-weight:700;
  margin-top:10px;
  transition:color var(--dur) var(--ease);
}
.feat-side .meta{
  display:flex;
  align-items:center;
  gap:12px;
  margin-top:12px;
  font-size:var(--fs-meta);
  color:var(--muted);
  letter-spacing:.04em;
}
.tag{
  display:inline-block;
  padding:3px 10px;
  background:var(--sand-soft);
  color:var(--ink-2);
  font-size:12px;
  line-height:1.6;
  letter-spacing:.04em;
  border-radius:var(--radius-sm);
}

/* news grid (CMS) */
.news-grid{
  display:grid;
  grid-template-columns:repeat(3,1fr);
  gap:28px;
}
.news-card{
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--radius);
  transition:transform var(--dur) var(--ease),box-shadow var(--dur) var(--ease),border-color var(--dur) var(--ease);
  height:100%;
}
.news-card:hover{
  transform:translateY(-2px);
  box-shadow:0 18px 40px -24px rgba(18,59,50,.22);
  border-color:var(--sand);
}
.news-card__link{
  display:flex;
  flex-direction:column;
  gap:14px;
  padding:26px 24px 22px;
  height:100%;
}
.news-card__title{
  font-family:var(--font-serif);
  font-size:20px;
  line-height:1.5;
  color:var(--ink);
  font-weight:700;
  display:-webkit-box;
  -webkit-line-clamp:2;
  -webkit-box-orient:vertical;
  overflow:hidden;
  transition:color var(--dur) var(--ease);
}
.news-card:hover .news-card__title{color:var(--deep);}
.news-card__desc{
  font-size:15px;
  color:var(--ink-2);
  line-height:1.8;
  display:-webkit-box;
  -webkit-line-clamp:2;
  -webkit-box-orient:vertical;
  overflow:hidden;
}
.news-card__meta{
  margin-top:auto;
  padding-top:14px;
  border-top:1px solid var(--line);
  display:flex;
  align-items:center;
  justify-content:space-between;
  font-size:var(--fs-meta);
  color:var(--muted);
  letter-spacing:.04em;
}
.card-arrow{color:var(--muted);transition:transform var(--dur) var(--ease),color var(--dur) var(--ease);}
.news-card:hover .card-arrow{transform:translateX(4px);color:var(--deep);}
.empty-state{
  min-height:220px;
  display:flex;
  flex-direction:column;
  align-items:center;
  justify-content:center;
  gap:12px;
  border:1px dashed var(--line);
  border-radius:var(--radius);
  background:var(--paper);
  color:var(--muted);
  font-size:16px;
}

/* trust */
.trust{background:var(--sand-soft);padding:96px 0;}
.trust-stats{
  display:grid;
  grid-template-columns:repeat(4,1fr);
  gap:32px;
}
.trust-num{
  font-family:var(--font-serif);
  font-size:44px;
  line-height:1;
  color:var(--deep);
  font-weight:700;
  letter-spacing:-.02em;
}
.trust-num small{font-size:16px;font-family:var(--font-sans);font-weight:400;color:var(--ink-2);margin-left:2px;}
.trust-label{font-size:12px;color:var(--muted);margin-top:10px;letter-spacing:.04em;}
.partners{
  display:grid;
  grid-template-columns:repeat(6,1fr);
  gap:16px;
  margin-top:48px;
}
.partner{
  aspect-ratio:16/10;
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--radius-sm);
  display:flex;
  align-items:center;
  justify-content:center;
  font-size:13px;
  color:var(--muted);
  letter-spacing:.06em;
  text-align:center;
  padding:8px;
}

/* faq */
.faq{border-top:1px solid var(--line);}
.faq-item{border-bottom:1px solid var(--line);}
.faq-q{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:24px;
  width:100%;
  padding:24px 4px;
  background:transparent;
  border:0;
  text-align:left;
  font-family:var(--font-serif);
  font-size:18px;
  line-height:1.5;
  color:var(--ink);
  transition:color var(--dur) var(--ease);
}
.faq-q:hover{color:var(--deep);}
.faq-icon{
  flex:0 0 auto;
  width:18px;height:18px;
  position:relative;
  color:var(--deep);
}
.faq-icon::before,.faq-icon::after{
  content:"";
  position:absolute;
  background:currentColor;
  transition:transform var(--dur) var(--ease),opacity var(--dur) var(--ease);
}
.faq-icon::before{left:0;right:0;top:8px;height:2px;}
.faq-icon::after{top:0;bottom:0;left:8px;width:2px;}
.faq-item.is-open .faq-icon::after{transform:scaleY(0);opacity:0;}
.faq-a{
  max-height:0;
  overflow:hidden;
  transition:max-height var(--dur) var(--ease);
}
.faq-a p{
  max-width:760px;
  padding:0 4px 26px;
  font-size:16px;
  line-height:1.9;
  color:var(--ink-2);
}

/* cta band */
.cta-band{background:var(--deep);color:var(--paper);padding:72px 0;}
.cta-grid{
  display:grid;
  grid-template-columns:5fr 7fr;
  gap:48px;
  align-items:center;
}
.cta-band h2{
  font-family:var(--font-serif);
  font-size:clamp(24px,2.6vw,32px);
  line-height:1.35;
  font-weight:700;
  color:var(--paper);
  letter-spacing:-.01em;
}
.cta-band p{
  margin-top:14px;
  font-size:16px;
  line-height:1.85;
  color:rgba(246,244,239,.76);
}
.cta-form{
  display:flex;
  gap:12px;
  align-items:flex-start;
  flex-wrap:wrap;
}
.field{flex:1 1 240px;min-width:0;}
.field input{
  width:100%;
  padding:14px 16px;
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--radius-sm);
  color:var(--ink);
  line-height:1.4;
  transition:border-color var(--dur) var(--ease),box-shadow var(--dur) var(--ease);
}
.field input::placeholder{color:var(--muted);}
.field input:focus{
  outline:none;
  border-color:var(--deep);
  box-shadow:0 0 0 2px var(--clay);
}
.form-note{
  flex-basis:100%;
  font-size:13px;
  color:rgba(246,244,239,.62);
  line-height:1.7;
}
.form-note.is-done{color:var(--sand);}

/* footer */
.site-footer{background:var(--deep-2);color:var(--paper);padding:72px 0 0;}
.foot-grid{
  display:grid;
  grid-template-columns:2fr 1fr 1fr 1.4fr;
  gap:40px;
}
.foot-brand{
  display:inline-flex;
  align-items:center;
  gap:10px;
  font-family:var(--font-serif);
  font-size:20px;
  font-weight:700;
  letter-spacing:.04em;
  color:var(--paper);
}
.foot-brand .brand-mark{background:var(--paper);color:var(--deep-2);}
.foot-intro{
  margin-top:18px;
  font-size:14px;
  line-height:1.9;
  color:rgba(246,244,239,.68);
  max-width:26em;
}
.foot-col h3{
  font-size:13px;
  letter-spacing:.12em;
  color:var(--sand);
  font-weight:500;
  margin-bottom:18px;
}
.foot-col li{margin-bottom:12px;}
.foot-col a,.foot-col span{
  font-size:14px;
  color:rgba(246,244,239,.76);
  position:relative;
  transition:color var(--dur) var(--ease);
}
.foot-col a:hover{color:var(--sand);text-decoration:underline;text-underline-offset:5px;}
.foot-bottom{
  margin-top:56px;
  padding:24px 0;
  border-top:1px solid rgba(255,255,255,.14);
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:20px;
  flex-wrap:wrap;
  font-size:13px;
  color:rgba(246,244,239,.6);
}
.foot-bottom a{color:rgba(246,244,239,.72);}
.foot-bottom a:hover{color:var(--sand);}

/* reveal */
.reveal{opacity:0;transform:translateY(12px);transition:opacity 520ms var(--ease),transform 520ms var(--ease);}
.reveal.is-in{opacity:1;transform:none;}

/* ---------- responsive ---------- */
@media (max-width:1279px){
  .container{padding:0 24px;}
  .section,.trust,.statement{padding:80px 0;}
  .news-grid{grid-template-columns:repeat(2,1fr);}
  .partners{grid-template-columns:repeat(3,1fr);}
}
@media (max-width:1023px){
  .hero-grid,.story-grid,.feature-grid,.cta-grid{grid-template-columns:1fr;gap:40px;}
  .hero{padding:48px 0 64px;}
  .hero-figure img{aspect-ratio:3/2;}
  .hero-stats{grid-template-columns:repeat(3,1fr);}
  .story-figure img{aspect-ratio:3/2;}
  .feat-main{grid-template-columns:1fr;}
  .feat-main .feat-media img{aspect-ratio:3/2;}
  .feat-side{flex-direction:row;gap:28px;flex-wrap:wrap;}
  .feat-side .side-card{flex:1 1 240px;border-bottom:1px solid var(--line);}
  .trust-stats{grid-template-columns:repeat(2,1fr);gap:28px;}
  .foot-grid{grid-template-columns:1fr 1fr;gap:36px;}
  .section-head{margin-bottom:32px;}
}
@media (max-width:900px){
  .nav-links,.nav-right{display:none;}
  .menu-toggle{display:inline-flex;}
  .nav-drawer{display:block;top:56px;}
  .nav{height:56px;}
  .brand{font-size:18px;}
  .brand-mark{width:28px;height:28px;font-size:14px;}
  .news-grid{grid-template-columns:1fr;}
  .row-item{grid-template-columns:44px 1fr 24px;gap:16px;padding:22px 8px;}
  .row-num{font-size:24px;}
  .row-title{font-size:19px;}
  .row-desc{display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
}
@media (max-width:767px){
  .container{padding:0 20px;}
  .section,.trust,.statement{padding:56px 0;}
  .hero{padding:36px 0 56px;}
  .hero-title{font-size:clamp(30px,8vw,38px);}
  .hero-sub{font-size:16px;}
  .hero-actions{flex-direction:column;align-items:stretch;gap:14px;}
  .hero-actions .btn{width:100%;}
  .hero-actions .text-link{justify-content:center;}
  .hero-stats{grid-template-columns:1fr;gap:18px;margin-top:32px;}
  .stat-num{font-size:26px;}
  .statement-inner{grid-template-columns:1fr;gap:16px;align-items:start;}
  .statement h2{font-size:24px;line-height:1.6;}
  .trust-stats{grid-template-columns:repeat(2,1fr);}
  .trust-num{font-size:34px;}
  .partners{grid-template-columns:repeat(2,1fr);}
  .timeline{grid-template-columns:1fr 1fr;gap:18px;}
  .feat-side{flex-direction:column;}
  .cta-band{padding:56px 0;}
  .cta-form{flex-direction:column;}
  .cta-form .btn{width:100%;}
  .foot-grid{grid-template-columns:1fr;gap:32px;}
  .foot-bottom{flex-direction:column;align-items:flex-start;gap:10px;}
  .faq-q{font-size:16px;padding:20px 2px;}
  .news-card__link{padding:22px 20px 18px;}
}
@media (max-width:480px){
  .hero-title{font-size:30px;}
  .tags-row{display:flex;flex-wrap:wrap;gap:8px;}
  .section-head h2{font-size:22px;}
}
@media (prefers-reduced-motion:reduce){
  *{animation:none!important;transition:none!important;}
  .reveal{opacity:1;transform:none;}
}

/* roulang page: article */
:root{
  --paper:#F6F4EF;
  --surface:#FFFFFF;
  --deep:#123B32;
  --deep-2:#0B2A23;
  --sand:#D9CFBE;
  --sand-soft:#EDE7DC;
  --clay:#A8553A;
  --ink:#14171A;
  --ink-2:#3A403C;
  --muted:#767C77;
  --line:#DCD8CE;
  --ok:#3F6E52;
  --warn:#8A6A22;

  --serif:'Noto Serif SC','Source Han Serif SC','Songti SC','SimSun',serif;
  --sans:'PingFang SC','Hiragino Sans GB','Microsoft YaHei','Helvetica Neue',Arial,sans-serif;

  --fs-display:clamp(38px,5.2vw,64px);
  --fs-h1:clamp(30px,3.4vw,46px);
  --fs-h2:clamp(24px,2.4vw,34px);
  --fs-h3:20px;
  --fs-body:16px;
  --fs-read:17px;
  --fs-meta:13px;

  --r-card:6px;
  --r-btn:2px;
  --ease:cubic-bezier(.22,.61,.36,1);
  --shadow-card:0 18px 40px -24px rgba(18,59,50,.22);
}

*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;}
body{
  margin:0;
  background:var(--paper);
  color:var(--ink);
  font-family:var(--sans);
  font-size:var(--fs-body);
  line-height:1.85;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;}
a{color:inherit;text-decoration:none;}
button,input,textarea,select{font-family:inherit;font-size:inherit;color:inherit;}
h1,h2,h3,h4,p,figure,blockquote,ul,ol{margin:0;}
ul,ol{padding:0;list-style:none;}
:focus-visible{outline:2px solid var(--clay);outline-offset:2px;}

.container{
  width:100%;
  max-width:1240px;
  margin:0 auto;
  padding:0 24px;
}

/* ---------- header ---------- */
.site-header{
  position:relative;
  z-index:60;
  background:var(--paper);
  border-bottom:1px solid var(--line);
}
.header-inner{
  display:flex;
  align-items:center;
  gap:28px;
  min-height:64px;
}
.brand{
  display:inline-flex;
  align-items:center;
  gap:10px;
  flex:0 0 auto;
}
.brand-mark{
  width:32px;height:32px;
  display:grid;place-items:center;
  background:var(--deep);
  color:var(--paper);
  font-family:var(--serif);
  font-size:17px;
  line-height:1;
  border-radius:2px;
  letter-spacing:0;
}
.brand-name{
  font-family:var(--serif);
  font-size:20px;
  font-weight:700;
  color:var(--ink);
  letter-spacing:.02em;
  white-space:nowrap;
}
.nav-links{
  display:flex;
  align-items:center;
  gap:28px;
  flex:1 1 auto;
}
.nav-link{
  position:relative;
  display:inline-block;
  padding:22px 0;
  font-size:15px;
  color:var(--ink-2);
  transition:color .2s var(--ease);
  white-space:nowrap;
}
.nav-link::after{
  content:"";
  position:absolute;
  left:0;bottom:14px;
  width:0;height:2px;
  background:var(--deep);
  transition:width .22s var(--ease);
}
.nav-link:hover{color:var(--deep);}
.nav-link:hover::after{width:100%;}
.nav-link.is-active{color:var(--deep);font-weight:600;}
.nav-link.is-active::after{width:100%;}
.nav-cta{display:none;}

.header-actions{
  display:flex;
  align-items:center;
  gap:12px;
  margin-left:auto;
  flex:0 0 auto;
}
.icon-btn{
  width:38px;height:38px;
  display:grid;place-items:center;
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:2px;
  color:var(--ink-2);
  cursor:pointer;
  transition:border-color .2s var(--ease),color .2s var(--ease),background .2s var(--ease);
}
.icon-btn:hover{border-color:var(--deep);color:var(--deep);}
.icon-btn:active{transform:translateY(1px);}
.nav-toggle{display:none;}

.search-bar{
  border-top:1px solid var(--line);
  background:var(--sand-soft);
}
.search-bar[hidden]{display:none;}
.search-form{
  display:flex;
  gap:12px;
  padding-top:14px;
  padding-bottom:14px;
}
.search-form input{
  flex:1 1 auto;
  min-width:0;
  padding:12px 14px;
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:2px;
  color:var(--ink);
  transition:border-color .2s var(--ease),box-shadow .2s var(--ease);
}
.search-form input::placeholder{color:var(--muted);}
.search-form input:focus{
  outline:none;
  border-color:var(--deep);
  box-shadow:0 0 0 2px var(--clay);
}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  padding:14px 28px;
  font-size:15px;
  line-height:1;
  border-radius:var(--r-btn);
  border:1px solid transparent;
  cursor:pointer;
  text-align:center;
  transition:background .22s var(--ease),color .22s var(--ease),border-color .22s var(--ease),box-shadow .22s var(--ease),transform .22s var(--ease);
}
.btn-primary{
  background:var(--deep);
  color:var(--paper);
}
.btn-primary:hover{
  background:var(--deep-2);
  box-shadow:inset 0 -2px 0 var(--clay);
}
.btn-primary:active{transform:translateY(1px);}
.btn-ghost{
  background:transparent;
  border-color:var(--line);
  color:var(--ink);
}
.btn-ghost:hover{border-color:var(--deep);color:var(--deep);}
.btn-ghost:active{transform:translateY(1px);}
.btn-sm{padding:11px 18px;font-size:14px;}

.link-arrow{
  display:inline-flex;
  align-items:center;
  gap:8px;
  font-size:15px;
  color:var(--deep);
  border-bottom:1px solid transparent;
  padding-bottom:2px;
  transition:border-color .22s var(--ease),color .22s var(--ease);
}
.link-arrow svg{transition:transform .22s var(--ease);}
.link-arrow:hover{border-color:var(--deep);}
.link-arrow:hover svg{transform:translateX(4px);}

/* ---------- breadcrumb ---------- */
.breadcrumb{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:8px;
  padding:20px 0;
  font-size:var(--fs-meta);
  letter-spacing:.06em;
  color:var(--muted);
  border-bottom:1px solid var(--line);
}
.breadcrumb a{
  color:var(--muted);
  transition:color .2s var(--ease);
}
.breadcrumb a:hover{color:var(--deep);text-decoration:underline;}
.breadcrumb .sep{color:var(--sand);}
.breadcrumb .current{
  color:var(--ink-2);
  max-width:48%;
  overflow:hidden;
  text-overflow:ellipsis;
  white-space:nowrap;
}

/* ---------- article ---------- */
.article-main{padding-bottom:96px;}
.article-head{
  max-width:860px;
  margin:0 auto;
  padding:56px 0 0;
}
.article-kicker{
  display:inline-flex;
  align-items:center;
  gap:8px;
  font-size:var(--fs-meta);
  letter-spacing:.06em;
  color:var(--muted);
  margin-bottom:18px;
}
.article-kicker::before{
  content:"";
  width:2px;height:14px;
  background:var(--clay);
  display:inline-block;
}
.article-title{
  font-family:var(--serif);
  font-size:var(--fs-h1);
  font-weight:700;
  line-height:1.22;
  letter-spacing:-.01em;
  color:var(--ink);
  display:-webkit-box;
  -webkit-line-clamp:3;
  -webkit-box-orient:vertical;
  overflow:hidden;
}
.article-meta{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:10px;
  margin-top:22px;
  font-size:var(--fs-meta);
  letter-spacing:.06em;
  color:var(--muted);
}
.article-meta .dot{color:var(--sand);}
.article-meta time{color:var(--ink-2);}
.article-meta .tag{
  display:inline-block;
  padding:3px 10px;
  background:var(--sand-soft);
  border-radius:2px;
  color:var(--ink-2);
  letter-spacing:.04em;
}

.article-cover{
  max-width:860px;
  margin:36px auto 0;
}
.article-cover .frame{
  position:relative;
  overflow:hidden;
  border:1px solid var(--line);
  border-radius:var(--r-card);
  aspect-ratio:16/9;
  background:var(--sand-soft);
}
.article-cover img{
  width:100%;height:100%;
  object-fit:cover;
  transition:transform .6s var(--ease);
}
.article-cover .frame:hover img{transform:scale(1.03);}
.article-cover figcaption{
  margin-top:12px;
  font-size:var(--fs-meta);
  color:var(--muted);
}

.article-body{
  max-width:760px;
  margin:0 auto;
  padding:44px 0 8px;
  font-size:var(--fs-read);
  line-height:2;
  color:var(--ink);
  word-break:break-word;
}
.article-body p{margin:0 0 1.1em;color:var(--ink);}
.article-body h2{
  position:relative;
  font-family:var(--serif);
  font-size:clamp(22px,2.2vw,28px);
  line-height:1.35;
  font-weight:700;
  color:var(--ink);
  margin:40px 0 16px;
  padding-left:16px;
}
.article-body h2::before{
  content:"";
  position:absolute;
  left:0;top:.36em;
  width:3px;height:1em;
  background:var(--clay);
}
.article-body h3{
  font-family:var(--serif);
  font-size:var(--fs-h3);
  line-height:1.4;
  font-weight:700;
  margin:28px 0 12px;
  color:var(--ink);
}
.article-body a{
  color:var(--deep);
  border-bottom:1px solid var(--sand);
  transition:border-color .2s var(--ease);
}
.article-body a:hover{border-color:var(--deep);}
.article-body strong{font-weight:700;color:var(--ink);}
.article-body ul,
.article-body ol{
  margin:0 0 1.2em;
  padding-left:22px;
  line-height:1.9;
}
.article-body ul{list-style:disc;}
.article-body ol{list-style:decimal;}
.article-body li{margin-bottom:.4em;}
.article-body li::marker{color:var(--deep);}
.article-body blockquote{
  margin:28px 0;
  padding:18px 20px;
  background:var(--sand-soft);
  border-left:3px solid var(--sand);
  border-radius:2px;
  color:var(--ink-2);
}
.article-body blockquote p:last-child{margin-bottom:0;}
.article-body img{
  width:100%;
  height:auto;
  border-radius:var(--r-card);
  border:1px solid var(--line);
  margin:24px 0 8px;
}
.article-body figure{margin:24px 0;}
.article-body figcaption{
  font-size:var(--fs-meta);
  color:var(--muted);
  margin-top:10px;
}
.article-body table{
  width:100%;
  border-collapse:collapse;
  margin:24px 0;
  font-size:15px;
}
.article-body th,
.article-body td{
  border:none;
  border-bottom:1px solid var(--line);
  padding:12px 14px;
  text-align:left;
  height:48px;
}
.article-body thead th{
  background:var(--sand-soft);
  color:var(--ink);
  font-weight:600;
  border-top:1px solid var(--line);
}
.article-body hr{
  border:none;
  border-top:1px solid var(--line);
  margin:36px 0;
}

.empty-state{
  border:1px dashed var(--line);
  background:var(--paper);
  border-radius:var(--r-card);
  padding:56px 24px;
  text-align:center;
}
.empty-state p{
  font-family:var(--serif);
  font-size:20px;
  color:var(--ink-2);
  margin-bottom:14px;
}

.article-foot{
  max-width:760px;
  margin:0 auto;
  padding:28px 0 0;
  border-top:1px solid var(--line);
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  justify-content:space-between;
  gap:16px;
}
.article-foot .foot-tags{
  display:flex;
  align-items:center;
  gap:8px;
  flex-wrap:wrap;
}
.article-foot .label{
  font-size:var(--fs-meta);
  letter-spacing:.06em;
  color:var(--muted);
}
.article-foot .tag{
  display:inline-block;
  padding:4px 12px;
  background:var(--sand-soft);
  border-radius:2px;
  font-size:var(--fs-meta);
  color:var(--ink-2);
}
.article-foot .foot-actions{
  display:flex;
  align-items:center;
  gap:20px;
}
.share-btn{
  display:inline-flex;
  align-items:center;
  gap:8px;
  padding:8px 12px;
  border:1px solid var(--line);
  background:var(--surface);
  border-radius:2px;
  font-size:var(--fs-meta);
  color:var(--ink-2);
  cursor:pointer;
  transition:border-color .2s var(--ease),color .2s var(--ease);
}
.share-btn:hover{border-color:var(--deep);color:var(--deep);}

/* ---------- next step CTA ---------- */
.next-step{
  background:var(--sand-soft);
  border-top:1px solid var(--line);
  border-bottom:1px solid var(--line);
}
.next-step .inner{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:32px;
  padding:56px 0;
}
.next-step h2{
  font-family:var(--serif);
  font-size:clamp(22px,2.2vw,28px);
  line-height:1.35;
  color:var(--ink);
  margin-bottom:10px;
}
.next-step p{
  font-size:var(--fs-body);
  color:var(--ink-2);
  max-width:58ch;
}

/* ---------- footer ---------- */
.site-footer{
  background:var(--deep-2);
  color:var(--paper);
  padding:72px 0 0;
}
.foot-grid{
  display:grid;
  grid-template-columns:1.6fr 1fr 1fr 1.2fr;
  gap:40px;
  padding-bottom:56px;
}
.foot-brand{
  display:inline-flex;
  align-items:center;
  gap:10px;
  color:var(--paper);
  font-family:var(--serif);
  font-size:19px;
  font-weight:700;
  margin-bottom:16px;
}
.foot-brand .brand-mark{background:var(--sand);color:var(--deep-2);}
.foot-intro{
  font-size:14px;
  line-height:1.9;
  color:rgba(246,244,239,.7);
  max-width:34ch;
}
.foot-col h3{
  font-size:13px;
  letter-spacing:.12em;
  color:var(--sand);
  font-weight:600;
  margin-bottom:18px;
}
.foot-col ul{display:grid;gap:12px;}
.foot-col li{font-size:14px;color:rgba(246,244,239,.72);}
.foot-col a{
  color:rgba(246,244,239,.78);
  border-bottom:1px solid transparent;
  transition:color .2s var(--ease),border-color .2s var(--ease);
}
.foot-col a:hover{color:var(--sand);border-color:var(--sand);}
.foot-bottom{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  justify-content:space-between;
  gap:12px;
  padding:22px 0 28px;
  border-top:1px solid rgba(255,255,255,.14);
  font-size:var(--fs-meta);
  color:rgba(246,244,239,.6);
}
.foot-bottom a{
  color:rgba(246,244,239,.78);
  border-bottom:1px solid transparent;
  transition:color .2s var(--ease),border-color .2s var(--ease);
}
.foot-bottom a:hover{color:var(--sand);border-color:var(--sand);}

/* ---------- reading progress ---------- */
.read-progress{
  position:fixed;
  top:0;right:0;
  width:2px;height:100vh;
  z-index:40;
  pointer-events:none;
  background:transparent;
}
.read-progress span{
  display:block;
  width:100%;
  height:0;
  background:var(--deep);
  transition:height .1s linear;
}

/* ---------- responsive ---------- */
@media (max-width:1023px){
  .container{padding:0 24px;}
  .article-head{padding-top:44px;}
  .article-body{padding-top:36px;}
  .next-step .inner{flex-direction:column;align-items:flex-start;padding:48px 0;}
  .foot-grid{grid-template-columns:1fr 1fr;gap:36px;}
}

@media (max-width:767px){
  .header-inner{min-height:56px;gap:16px;}
  .nav-toggle{
    display:grid;
    place-items:center;
    width:38px;height:38px;
    background:var(--surface);
    border:1px solid var(--line);
    border-radius:2px;
    color:var(--ink-2);
    cursor:pointer;
  }
  .header-actions .btn{display:none;}
  .header-actions .icon-btn{display:none;}
  .nav-links{
    position:fixed;
    left:0;right:0;
    top:56px;
    bottom:0;
    z-index:70;
    display:flex;
    flex-direction:column;
    align-items:stretch;
    gap:0;
    padding:8px 20px 28px;
    background:var(--paper);
    border-top:1px solid var(--line);
    transform:translateY(-12px);
    opacity:0;
    pointer-events:none;
    transition:transform .22s var(--ease),opacity .22s var(--ease);
    overflow-y:auto;
  }
  .nav-links.is-open{
    transform:translateY(0);
    opacity:1;
    pointer-events:auto;
  }
  .nav-link{
    display:flex;
    align-items:center;
    min-height:48px;
    padding:12px 0;
    font-size:16px;
    border-bottom:1px solid var(--line);
  }
  .nav-link::after{display:none;}
  .nav-cta{
    display:flex;
    margin-top:24px;
  }
  .nav-cta .btn{width:100%;}
  .breadcrumb{font-size:12px;padding:16px 0;}
  .breadcrumb .current{max-width:100%;}
  .article-title{-webkit-line-clamp:4;}
  .article-cover{margin-top:28px;}
  .article-body{font-size:16px;line-height:1.95;padding-top:30px;}
  .article-body h2{margin-top:32px;}
  .article-foot{flex-direction:column;align-items:flex-start;}
  .article-main{padding-bottom:64px;}
  .site-footer{padding-top:56px;}
  .foot-grid{grid-template-columns:1fr;gap:32px;padding-bottom:40px;}
  .foot-bottom{flex-direction:column;align-items:flex-start;}
  .search-form{flex-direction:column;}
  .search-form .btn{width:100%;}
}

@media (max-width:520px){
  .container{padding:0 20px;}
  .brand-name{font-size:18px;}
  .article-meta{font-size:12px;}
  .article-cover .frame{aspect-ratio:3/2;}
  .next-step .inner{padding:40px 0;}
  .next-step .btn{width:100%;}
}

/* roulang page: category1 */
:root{
  --paper:#F6F4EF;
  --surface:#FFFFFF;
  --deep:#123B32;
  --deep-2:#0B2A23;
  --sand:#D9CFBE;
  --sand-soft:#EDE7DC;
  --clay:#A8553A;
  --ink:#14171A;
  --ink-2:#3A403C;
  --muted:#767C77;
  --line:#DCD8CE;
  --ok:#3F6E52;
  --warn:#8A6A22;

  --font-serif:'Noto Serif SC','Source Han Serif SC','Songti SC','SimSun',serif;
  --font-sans:'PingFang SC','Hiragino Sans GB','Microsoft YaHei','Helvetica Neue',Arial,sans-serif;

  --fs-display:clamp(32px,4.6vw,54px);
  --fs-h1:clamp(30px,3.4vw,46px);
  --fs-h2:clamp(24px,2.4vw,34px);
  --fs-h3:20px;
  --fs-body:16px;
  --fs-read:17px;
  --fs-meta:13px;
  --fs-num:clamp(30px,3.4vw,44px);

  --radius-card:6px;
  --radius-btn:2px;
  --shadow-hover:0 18px 40px -24px rgba(18,59,50,.22);
  --ease:cubic-bezier(.22,.61,.36,1);
  --dur:220ms;

  --space-block:96px;
}

*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  background:var(--paper);
  color:var(--ink);
  font-family:var(--font-sans);
  font-size:var(--fs-body);
  line-height:1.85;
  -webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4,h5,h6{
  font-family:var(--font-serif);
  margin:0;
  color:var(--ink);
  font-weight:700;
  letter-spacing:-0.01em;
}
p{margin:0}
ul,ol{margin:0;padding:0;list-style:none}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
button{font-family:inherit;font-size:inherit;color:inherit;background:none;border:0;cursor:pointer}
figure{margin:0}
:focus-visible{outline:2px solid var(--clay);outline-offset:2px}

.container{
  width:100%;
  max-width:1240px;
  margin:0 auto;
  padding:0 24px;
}

/* ---------- header ---------- */
.site-header{
  background:var(--paper);
  border-bottom:1px solid var(--line);
  position:relative;
  z-index:70;
}
.header-inner{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:24px;
  height:64px;
}
.header-left{display:flex;align-items:center;gap:40px;min-width:0}
.brand{display:flex;align-items:center;gap:10px;flex:0 0 auto}
.brand-mark{
  width:30px;height:30px;
  display:inline-flex;align-items:center;justify-content:center;
  background:var(--deep);
  color:var(--paper);
  font-family:var(--font-serif);
  font-size:16px;
  font-weight:700;
  border-radius:2px;
  line-height:1;
}
.brand-name{
  font-family:var(--font-serif);
  font-size:19px;
  font-weight:700;
  letter-spacing:.02em;
  color:var(--ink);
}
.nav-links{display:flex;align-items:center;gap:30px}
.nav-link{
  position:relative;
  font-size:15px;
  color:var(--ink-2);
  padding:6px 0;
  transition:color var(--dur) var(--ease);
}
.nav-link::after{
  content:"";
  position:absolute;
  left:0;bottom:0;
  width:0;height:2px;
  background:var(--deep);
  transition:width var(--dur) var(--ease);
}
.nav-link:hover{color:var(--deep)}
.nav-link:hover::after{width:100%}
.nav-link.is-active{color:var(--deep);font-weight:600}
.nav-link.is-active::after{width:100%}
.header-right{display:flex;align-items:center;gap:14px;flex:0 0 auto}
.icon-btn{
  width:38px;height:38px;
  display:inline-flex;align-items:center;justify-content:center;
  border:1px solid transparent;
  border-radius:2px;
  color:var(--ink-2);
  transition:border-color var(--dur) var(--ease),color var(--dur) var(--ease);
}
.icon-btn:hover{border-color:var(--line);color:var(--deep)}
.nav-toggle{
  display:none;
  height:38px;
  padding:0 14px;
  border:1px solid var(--line);
  border-radius:2px;
  font-size:14px;
  color:var(--ink-2);
  transition:border-color var(--dur) var(--ease),color var(--dur) var(--ease);
}
.nav-toggle:hover{border-color:var(--deep);color:var(--deep)}

/* drawer */
.drawer{
  position:fixed;
  left:0;right:0;top:56px;bottom:0;
  background:var(--paper);
  z-index:65;
  padding:8px 20px 32px;
  transform:translateY(-110%);
  transition:transform 220ms var(--ease);
  overflow-y:auto;
}
.drawer.is-open{transform:translateY(0)}
.drawer a.drawer-link{
  display:flex;
  align-items:center;
  height:48px;
  font-size:16px;
  color:var(--ink-2);
  border-bottom:1px solid var(--line);
}
.drawer a.drawer-link.is-active{color:var(--deep);font-weight:600}
.drawer .btn{margin-top:24px;width:100%;justify-content:center}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  padding:14px 28px;
  border-radius:var(--radius-btn);
  font-size:15px;
  font-weight:600;
  line-height:1.3;
  border:1px solid transparent;
  transition:background-color var(--dur) var(--ease),color var(--dur) var(--ease),border-color var(--dur) var(--ease),box-shadow var(--dur) var(--ease),transform 120ms var(--ease);
}
.btn-primary{
  background:var(--deep);
  color:var(--paper);
  box-shadow:inset 0 -2px 0 transparent;
}
.btn-primary:hover{
  background:var(--deep-2);
  box-shadow:inset 0 -2px 0 var(--clay);
}
.btn-primary:active{transform:translateY(1px)}
.btn-sm{padding:10px 20px;font-size:14px}
.btn-ghost{
  background:transparent;
  color:var(--ink);
  border-color:var(--line);
}
.btn-ghost:hover{border-color:var(--deep);color:var(--deep)}
.text-link{
  position:relative;
  display:inline-flex;
  align-items:center;
  gap:6px;
  font-size:15px;
  color:var(--ink);
  padding-bottom:2px;
}
.text-link::after{
  content:"";
  position:absolute;left:0;bottom:0;
  width:0;height:1px;
  background:var(--deep);
  transition:width var(--dur) var(--ease);
}
.text-link:hover{color:var(--deep)}
.text-link:hover::after{width:100%}
.text-link .arw{transition:transform var(--dur) var(--ease)}
.text-link:hover .arw{transform:translateX(4px)}

/* ---------- shared bits ---------- */
.eyebrow{
  display:inline-flex;
  align-items:center;
  gap:10px;
  font-size:var(--fs-meta);
  letter-spacing:.06em;
  color:var(--muted);
  margin-bottom:20px;
}
.eyebrow::before{
  content:"";
  display:block;
  width:2px;height:14px;
  background:var(--clay);
}
.lead{
  font-size:18px;
  line-height:1.85;
  color:var(--ink-2);
}
.section{padding:var(--space-block) 0}
.section-tight{padding:64px 0}
.section-head{
  display:flex;
  align-items:flex-end;
  justify-content:space-between;
  gap:32px;
  margin-bottom:44px;
  flex-wrap:wrap;
}
.section-head h2{font-size:var(--fs-h2)}
.section-head p{
  font-size:15px;
  color:var(--ink-2);
  max-width:520px;
}
.tag{
  display:inline-block;
  padding:4px 10px;
  background:var(--sand-soft);
  color:var(--ink-2);
  font-size:var(--fs-meta);
  border-radius:2px;
  line-height:1.6;
}

/* ---------- hero ---------- */
.cat-hero{
  border-bottom:1px solid var(--line);
}
.cat-hero-grid{
  display:grid;
  grid-template-columns:7fr 5fr;
  gap:56px;
  align-items:center;
  padding:64px 0 72px;
}
.cat-hero-text h1{
  font-size:var(--fs-h1);
  line-height:1.22;
  margin-bottom:22px;
}
.cat-hero-text .lead{max-width:560px;margin-bottom:32px}
.hero-actions{display:flex;align-items:center;gap:26px;flex-wrap:wrap}
.cat-hero-figure{
  position:relative;
  border:1px solid var(--line);
  border-radius:var(--radius-card);
  overflow:hidden;
  aspect-ratio:5/4;
  background:var(--sand-soft);
}
.cat-hero-figure img{
  width:100%;height:100%;
  object-fit:cover;
  transition:transform 400ms var(--ease);
}
.cat-hero-figure:hover img{transform:scale(1.03)}
.figure-tag{
  position:absolute;
  left:16px;bottom:16px;
  background:rgba(255,255,255,.92);
  border:1px solid var(--line);
  border-radius:2px;
  padding:6px 12px;
  font-size:var(--fs-meta);
  color:var(--ink-2);
  letter-spacing:.04em;
}

/* ---------- overview ---------- */
.overview-grid{
  display:grid;
  grid-template-columns:8fr 4fr;
  gap:56px;
  align-items:start;
}
.overview-grid h2{
  font-size:var(--fs-h2);
  margin-bottom:24px;
}
.overview-grid p + p{margin-top:20px}
.overview-grid p{color:var(--ink-2)}
.aside-box{
  background:var(--sand-soft);
  border-radius:var(--radius-card);
  padding:32px 28px;
}
.aside-box h3{
  font-size:15px;
  font-family:var(--font-sans);
  font-weight:600;
  color:var(--ink);
  letter-spacing:.04em;
  margin-bottom:20px;
}
.aside-box li{
  position:relative;
  padding-left:16px;
  font-size:14px;
  line-height:1.8;
  color:var(--ink-2);
  margin-bottom:14px;
}
.aside-box li:last-child{margin-bottom:0}
.aside-box li::before{
  content:"";
  position:absolute;
  left:0;top:9px;
  width:2px;height:12px;
  background:var(--clay);
}

/* ---------- alternating rows ---------- */
.alt-row{
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:64px;
  align-items:center;
  padding:56px 0;
  border-top:1px solid var(--line);
}
.alt-row:first-of-type{border-top:1px solid var(--line)}
.alt-row.is-reverse .alt-media{order:2}
.alt-row.is-reverse .alt-text{order:1}
.alt-figure{
  border:1px solid var(--line);
  border-radius:var(--radius-card);
  overflow:hidden;
  aspect-ratio:3/2;
  background:var(--sand-soft);
}
.alt-figure img{
  width:100%;height:100%;
  object-fit:cover;
  transition:transform 400ms var(--ease);
}
.alt-figure:hover img{transform:scale(1.03)}
.alt-text h2{
  font-size:clamp(22px,2.2vw,30px);
  margin-bottom:18px;
  line-height:1.35;
}
.alt-text p{color:var(--ink-2);margin-bottom:22px}
.row-index{
  font-family:var(--font-serif);
  font-size:15px;
  color:var(--clay);
  letter-spacing:.1em;
  display:block;
  margin-bottom:14px;
}

/* ---------- stats band ---------- */
.stats-band{
  background:var(--deep);
  color:var(--paper);
  padding:72px 0;
}
.stats-grid{
  display:grid;
  grid-template-columns:repeat(4,1fr);
  gap:32px;
}
.stat{
  border-left:1px solid rgba(246,244,239,.22);
  padding-left:24px;
}
.stat:first-child{border-left:0;padding-left:0}
.stat-num{
  display:block;
  font-family:var(--font-serif);
  font-size:var(--fs-num);
  font-weight:700;
  line-height:1.1;
  color:var(--paper);
  margin-bottom:10px;
}
.stat-num small{font-size:.55em;font-weight:600;margin-left:2px}
.stat-label{
  font-size:12px;
  letter-spacing:.06em;
  color:var(--sand);
}

/* ---------- faq ---------- */
.faq-wrap{max-width:840px}
.faq-item{border-top:1px solid var(--line)}
.faq-item:last-child{border-bottom:1px solid var(--line)}
.faq-q{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:24px;
  width:100%;
  padding:24px 0;
  text-align:left;
  font-family:var(--font-serif);
  font-size:18px;
  font-weight:700;
  color:var(--ink);
  line-height:1.5;
  transition:color var(--dur) var(--ease);
}
.faq-q:hover{color:var(--deep)}
.faq-sign{
  position:relative;
  flex:0 0 14px;
  width:14px;height:14px;
}
.faq-sign::before,.faq-sign::after{
  content:"";
  position:absolute;
  background:var(--deep);
  transition:transform var(--dur) var(--ease),opacity var(--dur) var(--ease);
}
.faq-sign::before{left:0;top:6px;width:14px;height:1.5px}
.faq-sign::after{left:6px;top:0;width:1.5px;height:14px}
.faq-item.is-open .faq-sign::after{transform:rotate(90deg);opacity:0}
.faq-a{
  max-height:0;
  overflow:hidden;
  transition:max-height 220ms var(--ease);
}
.faq-a p{
  max-width:760px;
  padding:0 0 26px;
  font-size:15px;
  line-height:1.9;
  color:var(--ink-2);
}

/* ---------- cta band ---------- */
.cta-band{
  background:var(--sand-soft);
  border-top:1px solid var(--line);
  border-bottom:1px solid var(--line);
  padding:64px 0;
}
.cta-inner{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:40px;
  flex-wrap:wrap;
}
.cta-inner h2{
  font-size:clamp(22px,2.4vw,30px);
  margin-bottom:10px;
}
.cta-inner p{color:var(--ink-2);font-size:15px}

/* ---------- footer ---------- */
.site-footer{
  background:var(--deep-2);
  color:var(--paper);
  padding:72px 0 28px;
  font-size:14px;
}
.foot-grid{
  display:grid;
  grid-template-columns:1.6fr 1fr 1fr 1.2fr;
  gap:40px;
  padding-bottom:48px;
}
.foot-brand{
  display:inline-flex;
  align-items:center;
  gap:10px;
  font-family:var(--font-serif);
  font-size:19px;
  font-weight:700;
  color:var(--paper);
  margin-bottom:18px;
}
.foot-brand .brand-mark{background:var(--paper);color:var(--deep-2)}
.foot-intro{
  color:rgba(246,244,239,.72);
  line-height:1.9;
  max-width:340px;
  font-size:13.5px;
}
.foot-col h3{
  font-family:var(--font-sans);
  font-size:13px;
  font-weight:600;
  letter-spacing:.08em;
  color:var(--sand);
  margin-bottom:18px;
}
.foot-col li{margin-bottom:10px}
.foot-col a,.foot-col span{
  color:rgba(246,244,239,.74);
  font-size:13.5px;
  position:relative;
  transition:color var(--dur) var(--ease);
}
.foot-col a::after{
  content:"";
  position:absolute;
  left:0;bottom:-2px;
  width:0;height:1px;
  background:var(--sand);
  transition:width var(--dur) var(--ease);
}
.foot-col a:hover{color:var(--sand)}
.foot-col a:hover::after{width:100%}
.foot-bottom{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:24px;
  flex-wrap:wrap;
  padding-top:24px;
  border-top:1px solid rgba(255,255,255,.14);
  font-size:12.5px;
  color:rgba(246,244,239,.6);
}
.foot-bottom a{color:rgba(246,244,239,.8);transition:color var(--dur) var(--ease)}
.foot-bottom a:hover{color:var(--sand)}

/* ---------- reveal ---------- */
.reveal{opacity:0;transform:translateY(12px)}
.reveal.is-in{opacity:1;transform:none;transition:opacity 520ms var(--ease),transform 520ms var(--ease)}
@media (prefers-reduced-motion:reduce){
  .reveal{opacity:1;transform:none}
  *{transition-duration:.01ms !important;animation-duration:.01ms !important}
}

/* ---------- breakpoints ---------- */
@media (max-width:1279px){
  :root{--space-block:80px}
  .cat-hero-grid{gap:40px}
}
@media (max-width:1023px){
  .header-inner{height:60px}
  .nav-links{display:none}
  .nav-toggle{display:inline-flex;align-items:center}
  .header-left{gap:0}
  .cat-hero-grid{grid-template-columns:1fr;gap:36px;padding:48px 0 56px}
  .cat-hero-figure{aspect-ratio:3/2}
  .overview-grid{grid-template-columns:1fr;gap:36px}
  .alt-row{grid-template-columns:1fr;gap:28px;padding:44px 0}
  .alt-row.is-reverse .alt-media{order:0}
  .alt-row.is-reverse .alt-text{order:1}
  .alt-figure{aspect-ratio:3/2}
  .stats-grid{grid-template-columns:repeat(2,1fr);gap:36px 24px}
  .stat:nth-child(3){border-left:0;padding-left:0}
  .foot-grid{grid-template-columns:1fr 1fr;gap:32px}
  .foot-intro{max-width:100%}
}
@media (max-width:767px){
  :root{--space-block:56px}
  .container{padding:0 20px}
  .drawer{top:56px}
  .header-inner{height:56px}
  .header-right .btn-sm{display:none}
  .cat-hero-text h1{font-size:clamp(28px,7vw,34px)}
  .lead{font-size:16.5px}
  .hero-actions{flex-direction:column;align-items:stretch;gap:16px}
  .hero-actions .btn{width:100%}
  .hero-actions .text-link{justify-content:center}
  .section-head{flex-direction:column;align-items:flex-start;gap:16px;margin-bottom:32px}
  .aside-box{padding:26px 22px}
  .faq-q{font-size:16.5px;padding:20px 0}
  .cta-inner{flex-direction:column;align-items:flex-start}
  .cta-inner .btn{width:100%}
  .stats-grid{grid-template-columns:repeat(2,1fr);gap:28px 20px}
  .stat{padding-left:16px}
  .stat:nth-child(odd){border-left:0;padding-left:0}
  .foot-grid{grid-template-columns:1fr;gap:28px;padding-bottom:32px}
  .foot-bottom{flex-direction:column;align-items:flex-start;gap:10px}
  .site-footer{padding:56px 0 24px}
}
@media (max-width:480px){
  .cat-hero-text h1{font-size:28px}
  .brand-name{font-size:17px}
  .figure-tag{left:12px;bottom:12px;font-size:12px;padding:5px 9px}
  .stat-num{font-size:28px}
}

/* roulang page: category2 */
:root{
  --paper:#F6F4EF;
  --surface:#FFFFFF;
  --deep:#123B32;
  --deep-2:#0B2A23;
  --sand:#D9CFBE;
  --sand-soft:#EDE7DC;
  --clay:#A8553A;
  --ink:#14171A;
  --ink-2:#3A403C;
  --muted:#767C77;
  --line:#DCD8CE;
  --ok:#3F6E52;
  --warn:#8A6A22;
  --font-serif:'Noto Serif SC','Source Han Serif SC','Songti SC','SimSun',serif;
  --font-sans:'PingFang SC','Hiragino Sans GB','Microsoft YaHei','Helvetica Neue',Arial,sans-serif;
  --r-card:6px;
  --r-btn:2px;
  --r-tag:2px;
  --ease:cubic-bezier(.22,.61,.36,1);
  --container:1240px;
  --fs-display:clamp(38px,5.2vw,64px);
  --fs-h1:clamp(30px,3.4vw,46px);
  --fs-h2:clamp(24px,2.4vw,34px);
  --fs-h3:20px;
  --fs-body:16px;
  --fs-read:17px;
  --fs-meta:13px;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--paper);
  color:var(--ink);
  font-family:var(--font-sans);
  font-size:var(--fs-body);
  line-height:1.85;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;height:auto;}
a{color:inherit;text-decoration:none;}
button{font-family:inherit;cursor:pointer;border:0;background:none;color:inherit;}
input,textarea{font-family:inherit;font-size:15px;color:var(--ink);}
ul,ol{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4{margin:0;font-family:var(--font-serif);font-weight:700;letter-spacing:-0.01em;}
p{margin:0;}
:focus-visible{outline:2px solid var(--clay);outline-offset:2px;}

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

/* ---------- Header ---------- */
.site-header{
  position:relative;
  z-index:60;
  background:var(--paper);
  border-bottom:1px solid var(--line);
  transition:border-color .22s var(--ease),box-shadow .22s var(--ease);
}
.site-header.is-scrolled{border-bottom-color:#C9C3B6;box-shadow:0 1px 0 rgba(20,23,26,.04);}
.header-inner{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:24px;
  height:64px;
}
.header-left{display:flex;align-items:center;gap:36px;min-width:0;}
.brand{display:inline-flex;align-items:center;gap:10px;flex:0 0 auto;}
.brand-mark{
  width:30px;height:30px;
  display:inline-flex;align-items:center;justify-content:center;
  background:var(--deep);
  color:var(--paper);
  font-family:var(--font-serif);
  font-size:16px;
  line-height:1;
  border-radius:var(--r-tag);
  letter-spacing:0;
}
.brand-text{
  font-family:var(--font-serif);
  font-size:19px;
  font-weight:700;
  letter-spacing:.04em;
  color:var(--ink);
}
.nav-links{display:flex;align-items:center;gap:28px;}
.nav-link{
  position:relative;
  font-size:15px;
  color:var(--ink-2);
  padding:6px 0;
  transition:color .2s var(--ease);
}
.nav-link::after{
  content:"";
  position:absolute;
  left:0;bottom:0;
  width:100%;height:2px;
  background:var(--deep);
  transform:scaleX(0);
  transform-origin:left center;
  transition:transform .24s var(--ease);
}
.nav-link:hover{color:var(--deep);}
.nav-link:hover::after{transform:scaleX(1);}
.nav-link.is-active{color:var(--deep);font-weight:600;}
.nav-link.is-active::after{transform:scaleX(1);}
.header-right{display:flex;align-items:center;gap:14px;flex:0 0 auto;}
.icon-btn{
  width:38px;height:38px;
  display:inline-flex;align-items:center;justify-content:center;
  border:1px solid transparent;
  border-radius:var(--r-btn);
  color:var(--ink-2);
  transition:border-color .2s var(--ease),color .2s var(--ease),background .2s var(--ease);
}
.icon-btn:hover{border-color:var(--line);color:var(--deep);background:var(--surface);}
.icon-btn svg{width:18px;height:18px;}

/* buttons */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:14px 28px;
  font-size:15px;
  line-height:1.2;
  border-radius:var(--r-btn);
  border:1px solid transparent;
  transition:background .2s var(--ease),color .2s var(--ease),border-color .2s var(--ease),transform .12s var(--ease);
  white-space:nowrap;
}
.btn-primary{
  background:var(--deep);
  color:var(--paper);
  box-shadow:inset 0 -2px 0 rgba(168,85,58,0);
}
.btn-primary:hover{background:var(--deep-2);box-shadow:inset 0 -2px 0 var(--clay);}
.btn-primary:active{transform:translateY(1px);}
.btn-ghost{
  background:transparent;
  color:var(--ink);
  border:1px solid var(--line);
}
.btn-ghost:hover{border-color:var(--deep);color:var(--deep);}
.btn-ghost:active{transform:translateY(1px);}
.btn-sm{padding:10px 20px;font-size:14px;}
.link-arrow{
  display:inline-flex;align-items:center;gap:6px;
  font-size:15px;color:var(--deep);
  border-bottom:1px solid transparent;
  transition:border-color .2s var(--ease),gap .2s var(--ease);
}
.link-arrow svg{width:14px;height:14px;transition:transform .2s var(--ease);}
.link-arrow:hover{border-bottom-color:var(--deep);}
.link-arrow:hover svg{transform:translateX(4px);}

/* search panel */
.search-panel{
  border-bottom:1px solid var(--line);
  background:var(--surface);
  animation:panelIn .22s var(--ease);
}
@keyframes panelIn{from{opacity:0;transform:translateY(-6px);}to{opacity:1;transform:none;}}
.search-form{
  display:flex;gap:12px;
  padding:18px 0;
}
.search-form input{
  flex:1 1 auto;
  padding:12px 14px;
  border:1px solid var(--line);
  border-radius:var(--r-btn);
  background:var(--paper);
  transition:border-color .2s var(--ease),box-shadow .2s var(--ease);
}
.search-form input:focus{outline:none;border-color:var(--deep);box-shadow:0 0 0 2px rgba(168,85,58,.35);}
.search-form input::placeholder{color:var(--muted);}

/* mobile toggle + drawer */
.menu-toggle{
  display:none;
  width:40px;height:40px;
  flex-direction:column;align-items:center;justify-content:center;gap:5px;
  border:1px solid var(--line);
  border-radius:var(--r-btn);
}
.menu-toggle span{
  display:block;width:16px;height:1.5px;background:var(--ink-2);
  transition:transform .22s var(--ease),opacity .22s var(--ease);
}
.menu-toggle[aria-expanded="true"] span:nth-child(1){transform:translateY(6.5px) rotate(45deg);}
.menu-toggle[aria-expanded="true"] span:nth-child(2){opacity:0;}
.menu-toggle[aria-expanded="true"] span:nth-child(3){transform:translateY(-6.5px) rotate(-45deg);}
.drawer{
  position:fixed;
  top:0;right:0;
  width:min(84vw,360px);
  height:100%;
  background:var(--paper);
  border-left:1px solid var(--line);
  transform:translateX(101%);
  transition:transform .24s var(--ease);
  z-index:80;
  display:flex;flex-direction:column;
  padding:18px 20px 28px;
  overflow-y:auto;
}
.drawer.is-open{transform:translateX(0);}
.drawer-head{display:flex;align-items:center;justify-content:space-between;padding-bottom:16px;border-bottom:1px solid var(--line);}
.drawer-close{width:36px;height:36px;display:inline-flex;align-items:center;justify-content:center;border:1px solid var(--line);border-radius:var(--r-btn);color:var(--ink-2);}
.drawer-nav{display:flex;flex-direction:column;margin-top:8px;}
.drawer-nav a{
  display:flex;align-items:center;
  height:48px;
  border-bottom:1px solid var(--line);
  font-size:16px;color:var(--ink-2);
}
.drawer-nav a.is-active{color:var(--deep);font-weight:600;}
.drawer-cta{margin-top:22px;}
.drawer-cta .btn{width:100%;}
.drawer-mask{
  position:fixed;inset:0;background:rgba(11,42,35,.34);
  opacity:0;pointer-events:none;
  transition:opacity .24s var(--ease);
  z-index:70;
}
.drawer-mask.is-open{opacity:1;pointer-events:auto;}

/* ---------- Category head ---------- */
.cat-head{
  padding:96px 0 72px;
  text-align:center;
}
.cat-head .eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:var(--fs-meta);
  letter-spacing:.06em;
  color:var(--muted);
  margin-bottom:20px;
}
.cat-head .eyebrow::before{content:"";width:2px;height:13px;background:var(--clay);display:inline-block;}
.cat-head h1{
  font-size:var(--fs-h1);
  line-height:1.18;
  max-width:820px;
  margin:0 auto;
}
.cat-head .lead{
  max-width:660px;
  margin:20px auto 0;
  font-size:17px;
  line-height:1.9;
  color:var(--ink-2);
}
.cat-head .rule{
  width:64px;height:1px;background:var(--line);
  margin:36px auto 0;
}

/* ---------- Layout ---------- */
.layout{
  display:grid;
  grid-template-columns:3fr 9fr;
  gap:48px;
  padding-bottom:96px;
  align-items:start;
}
.toc{
  position:sticky;
  top:28px;
  border-top:1px solid var(--line);
  padding-top:20px;
}
.toc-title{
  font-size:var(--fs-meta);
  letter-spacing:.06em;
  color:var(--muted);
  margin-bottom:14px;
}
.toc a{
  position:relative;
  display:block;
  padding:9px 0 9px 14px;
  font-size:14.5px;
  line-height:1.6;
  color:var(--ink-2);
  transition:color .2s var(--ease),background .2s var(--ease);
}
.toc a::before{
  content:"";
  position:absolute;left:0;top:10px;bottom:10px;
  width:2px;background:transparent;
  transition:background .2s var(--ease);
}
.toc a:hover{color:var(--deep);}
.toc a.is-current{color:var(--deep);font-weight:600;}
.toc a.is-current::before{background:var(--clay);}

.content-sec{
  padding-bottom:56px;
  margin-bottom:56px;
  border-bottom:1px solid var(--line);
}
.content-sec:last-child{border-bottom:0;margin-bottom:0;padding-bottom:0;}
.content-sec h2{
  position:relative;
  font-size:var(--fs-h2);
  line-height:1.3;
  padding-left:18px;
  margin-bottom:20px;
}
.content-sec h2::before{
  content:"";
  position:absolute;left:0;top:.32em;
  width:2px;height:.92em;
  background:var(--clay);
}
.content-sec h3{
  font-size:var(--fs-h3);
  line-height:1.45;
  margin:32px 0 12px;
}
.content-sec p{
  font-size:var(--fs-read);
  line-height:2;
  color:var(--ink-2);
  margin-bottom:1.1em;
  max-width:760px;
}
.content-sec p strong{color:var(--ink);font-weight:600;}
.content-sec figure{margin:32px 0 0;}
.content-sec figure img{
  width:100%;
  aspect-ratio:3/2;
  object-fit:cover;
  border:1px solid var(--line);
  border-radius:var(--r-card);
}
.content-sec figcaption{
  margin-top:10px;
  font-size:var(--fs-meta);
  color:var(--muted);
}
.spec-list{margin:8px 0 24px;max-width:760px;}
.spec-list li{
  position:relative;
  padding-left:20px;
  font-size:16px;
  line-height:1.95;
  color:var(--ink-2);
  margin-bottom:6px;
}
.spec-list li::before{
  content:"";
  position:absolute;left:2px;top:.72em;
  width:6px;height:6px;
  background:var(--sand);
  border-radius:1px;
}
.quote{
  max-width:760px;
  border-left:3px solid var(--sand);
  background:var(--sand-soft);
  padding:18px 22px;
  margin:24px 0;
  font-size:16px;
  line-height:1.95;
  color:var(--ink-2);
}
.quote cite{display:block;margin-top:10px;font-style:normal;font-size:var(--fs-meta);color:var(--muted);}

/* ---------- Info cards ---------- */
.info-block{padding-bottom:96px;}
.sec-head{
  display:flex;
  align-items:flex-end;
  justify-content:space-between;
  gap:24px;
  margin-bottom:32px;
  padding-bottom:18px;
  border-bottom:1px solid var(--line);
}
.sec-head h2{font-size:var(--fs-h2);line-height:1.25;}
.sec-head .hint{font-size:var(--fs-meta);color:var(--muted);letter-spacing:.04em;white-space:nowrap;}
.info-grid{
  display:grid;
  grid-template-columns:repeat(2,1fr);
  gap:24px;
}
.info-card{
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--r-card);
  padding:28px 26px 22px;
  aspect-ratio:auto;
  display:flex;
  flex-direction:column;
  transition:transform .22s var(--ease),box-shadow .22s var(--ease),border-color .22s var(--ease);
}
.info-card:hover{
  transform:translateY(-2px);
  box-shadow:0 18px 40px -24px rgba(18,59,50,.22);
  border-color:#CDC6B8;
}
.tag{
  display:inline-block;
  align-self:flex-start;
  font-size:var(--fs-meta);
  line-height:1.6;
  padding:2px 9px;
  border-radius:var(--r-tag);
  background:var(--sand-soft);
  color:var(--ink-2);
  letter-spacing:.02em;
}
.info-card h3{
  font-size:18px;
  line-height:1.55;
  margin:14px 0 10px;
}
.info-card p{
  font-size:15px;
  line-height:1.85;
  color:var(--ink-2);
  display:-webkit-box;
  -webkit-line-clamp:2;
  -webkit-box-orient:vertical;
  overflow:hidden;
  margin-bottom:20px;
}
.info-card .meta{
  margin-top:auto;
  padding-top:14px;
  border-top:1px solid var(--line);
  display:flex;align-items:center;justify-content:space-between;
  font-size:var(--fs-meta);
  color:var(--muted);
}
.info-card .meta .go{display:inline-flex;align-items:center;gap:4px;color:var(--deep);}
.info-card .meta .go svg{width:13px;height:13px;transition:transform .2s var(--ease);}
.info-card:hover .meta .go svg{transform:translateX(4px);}

/* ---------- FAQ ---------- */
.faq-block{padding-bottom:96px;}
.faq-block .faq-inner{max-width:760px;}
.faq-item{border-top:1px solid var(--line);}
.faq-item:last-child{border-bottom:1px solid var(--line);}
.faq-q{
  width:100%;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:20px;
  padding:22px 0;
  text-align:left;
  font-family:var(--font-serif);
  font-size:18px;
  line-height:1.55;
  color:var(--ink);
  transition:color .2s var(--ease);
}
.faq-q:hover{color:var(--deep);}
.faq-q .sign{
  flex:0 0 auto;
  width:20px;height:20px;
  display:inline-flex;align-items:center;justify-content:center;
  color:var(--deep);
  transition:transform .22s var(--ease);
}
.faq-q[aria-expanded="true"] .sign{transform:rotate(45deg);}
.faq-a{
  overflow:hidden;
  max-height:0;
  transition:max-height .24s var(--ease);
}
.faq-a p{
  font-size:16px;
  line-height:1.9;
  color:var(--ink-2);
  max-width:720px;
  padding:0 0 24px;
}

/* ---------- CTA ---------- */
.cta-band{
  background:var(--sand-soft);
  border-top:1px solid var(--line);
  border-bottom:1px solid var(--line);
}
.cta-inner{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:32px;
  padding:56px 0;
}
.cta-inner h2{font-size:var(--fs-h2);line-height:1.3;margin-bottom:10px;}
.cta-inner p{font-size:16px;color:var(--ink-2);max-width:620px;}
.cta-actions{display:flex;gap:14px;flex-wrap:wrap;flex:0 0 auto;}

/* ---------- Footer ---------- */
.site-footer{
  background:var(--deep-2);
  color:var(--paper);
  padding:72px 0 28px;
}
.foot-grid{
  display:grid;
  grid-template-columns:1.6fr 1fr 1fr 1.2fr;
  gap:40px;
}
.foot-brand{
  display:inline-flex;align-items:center;gap:10px;
  font-family:var(--font-serif);
  font-size:19px;font-weight:700;
  letter-spacing:.04em;
  margin-bottom:16px;
}
.foot-brand .brand-mark{background:var(--paper);color:var(--deep-2);}
.foot-intro{
  font-size:14.5px;
  line-height:1.95;
  color:rgba(246,244,239,.72);
  max-width:340px;
}
.foot-col h3{
  font-family:var(--font-sans);
  font-size:var(--fs-meta);
  font-weight:500;
  letter-spacing:.1em;
  color:var(--sand);
  margin-bottom:16px;
}
.foot-col ul li{margin-bottom:11px;}
.foot-col ul li a,
.foot-col ul li span{
  font-size:14.5px;
  color:rgba(246,244,239,.8);
  transition:color .2s var(--ease);
}
.foot-col ul li a{position:relative;}
.foot-col ul li a::after{
  content:"";
  position:absolute;left:0;bottom:-2px;
  width:100%;height:1px;background:var(--sand);
  transform:scaleX(0);transform-origin:left center;
  transition:transform .22s var(--ease);
}
.foot-col ul li a:hover{color:var(--sand);}
.foot-col ul li a:hover::after{transform:scaleX(1);}
.foot-bottom{
  margin-top:52px;
  padding-top:22px;
  border-top:1px solid rgba(255,255,255,.14);
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:20px;
  flex-wrap:wrap;
  font-size:var(--fs-meta);
  color:rgba(246,244,239,.6);
}
.foot-bottom a{color:rgba(246,244,239,.82);transition:color .2s var(--ease);}
.foot-bottom a:hover{color:var(--sand);}

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

/* ---------- Responsive ---------- */
@media (max-width:1279px){
  .content-sec{padding-bottom:48px;margin-bottom:48px;}
}
@media (max-width:1023px){
  .layout{grid-template-columns:1fr;gap:32px;padding-bottom:72px;}
  .toc{
    position:static;
    border-top:1px solid var(--line);
    border-bottom:1px solid var(--line);
    padding:14px 0;
    margin-bottom:8px;
  }
  .toc-title{display:none;}
  .toc-nav{
    display:flex;
    gap:10px;
    overflow-x:auto;
    scrollbar-width:none;
    -webkit-overflow-scrolling:touch;
  }
  .toc-nav::-webkit-scrollbar{display:none;}
  .toc a{
    flex:0 0 auto;
    padding:7px 14px;
    border:1px solid var(--line);
    border-radius:var(--r-tag);
    font-size:14px;
    background:var(--surface);
    white-space:nowrap;
  }
  .toc a::before{display:none;}
  .toc a.is-current{background:var(--sand-soft);border-color:var(--sand);}
  .info-grid{grid-template-columns:1fr;}
  .cta-inner{flex-direction:column;align-items:flex-start;padding:48px 0;}
  .foot-grid{grid-template-columns:1fr 1fr;gap:32px;}
  .cat-head{padding:80px 0 56px;}
  .info-block,.faq-block{padding-bottom:72px;}
}
@media (max-width:767px){
  .nav-links{display:none;}
  .header-right .btn-sm{display:none;}
  .menu-toggle{display:flex;}
  .header-inner{height:56px;}
  .header-left{gap:16px;}
  .cat-head{padding:56px 0 44px;}
  .cat-head h1{font-size:clamp(26px,7vw,32px);}
  .cat-head .lead{font-size:16px;margin-top:16px;}
  .content-sec h2{font-size:24px;padding-left:14px;}
  .content-sec p{font-size:16px;line-height:1.95;}
  .info-card{padding:22px 20px 18px;}
  .faq-q{font-size:17px;padding:18px 0;}
  .cta-actions{width:100%;}
  .cta-actions .btn{width:100%;}
  .foot-grid{grid-template-columns:1fr;gap:28px;}
  .foot-bottom{flex-direction:column;align-items:flex-start;gap:10px;}
  .sec-head{flex-direction:column;align-items:flex-start;gap:8px;}
  .info-block,.faq-block{padding-bottom:56px;}
  .layout{padding-bottom:56px;}
}
@media (max-width:520px){
  .container{padding:0 20px;}
  .cat-head h1{font-size:26px;}
  .search-form{flex-direction:column;}
  .search-form .btn{width:100%;}
  .info-card h3{font-size:17px;}
}