/* roulang page: index */
:root{
  --paper:#F7F5F0;
  --paper-2:#FFFFFF;
  --ink:#14201C;
  --ink-2:#4A5751;
  --ink-3:#8A9490;
  --line:#E2DED4;
  --brand:#1C3B33;
  --brand-2:#2F5A4E;
  --mist:#8FB3A8;
  --accent:#C4602F;
  --accent-soft:#F2E3D8;
  --dark:#0F1A17;
  --radius:14px;
  --radius-sm:10px;
  --shadow-1:0 1px 2px rgba(15,26,23,.06);
  --shadow-2:0 8px 24px -12px rgba(15,26,23,.16);
  --ease:cubic-bezier(.2,.7,.3,1);
  --t:180ms var(--ease);
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,sans-serif;
  font-size:16px;
  line-height:1.8;
  color:var(--ink);
  background:var(--paper);
  overflow-x:hidden;
  font-feature-settings:"tnum";
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border:0}
a{color:var(--brand);text-decoration:none;transition:color var(--t),border-color var(--t),background var(--t)}
a:hover{color:var(--brand-2)}
h1,h2,h3,h4,p,ul,ol,figure{margin:0}
ul,ol{padding:0;list-style:none}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer}
input{font:inherit}
:focus-visible{outline:2px solid var(--accent);outline-offset:2px}
.container{max-width:1200px;margin:0 auto;padding:0 20px}
@media (min-width:1024px){.container{padding:0 32px}}

/* grid gutters over foundation */
.grid-x{margin-left:-16px;margin-right:-16px}
.grid-x>.cell{padding-left:16px;padding-right:16px}
@media (max-width:639px){
  .grid-x{margin-left:-10px;margin-right:-10px}
  .grid-x>.cell{padding-left:10px;padding-right:10px}
}

/* ---------- header ---------- */
.site-header{
  position:sticky;top:0;z-index:200;
  background:rgba(247,245,240,.94);
  backdrop-filter:saturate(1.4) blur(6px);
  border-bottom:1px solid var(--line);
}
.brand-row{
  display:flex;align-items:center;gap:24px;
  height:68px;
  border-bottom:1px solid var(--line);
}
.brand{display:flex;align-items:baseline;gap:8px;flex:0 0 auto;text-decoration:none}
.brand-main{
  font-size:21px;font-weight:800;letter-spacing:-.01em;color:var(--ink);
}
.brand-sub{
  font-size:12px;font-weight:600;color:var(--ink-3);
  letter-spacing:.14em;
  border-left:1px solid var(--line);padding-left:8px;
}
.brand-search{flex:1 1 auto;display:flex;justify-content:center;position:relative}
.search-form{
  display:flex;align-items:center;gap:10px;
  width:100%;max-width:340px;height:42px;
  padding:0 18px;
  background:var(--paper-2);
  border:1px solid var(--line);
  border-radius:999px;
  transition:border-color var(--t),box-shadow var(--t);
}
.search-form:focus-within{border-color:var(--brand);box-shadow:0 0 0 2px rgba(196,96,47,.28)}
.search-form i{color:var(--ink-3);font-size:14px}
.search-form input{
  flex:1;border:0;background:transparent;height:100%;
  font-size:14px;color:var(--ink);outline:none;
}
.search-form input::placeholder{color:var(--ink-3)}
.search-toggle{
  display:none;width:42px;height:42px;border-radius:999px;
  border:1px solid var(--line);background:var(--paper-2);color:var(--ink-2);
  align-items:center;justify-content:center;
}
.header-actions{display:flex;align-items:center;gap:18px;flex:0 0 auto}
.link-quiet{font-size:14px;color:var(--ink-2)}
.link-quiet:hover{color:var(--brand)}

.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:14px 26px;border-radius:var(--radius-sm);
  font-size:15px;font-weight:600;line-height:1;
  border:1px solid transparent;
  transition:background var(--t),color var(--t),border-color var(--t),transform var(--t),box-shadow var(--t);
  min-height:44px;
}
.btn:active{transform:scale(.985)}
.btn-primary{background:var(--brand);color:#F7F5F0}
.btn-primary:hover{background:var(--brand-2);color:#fff}
.btn-ghost{background:transparent;color:var(--ink);border-color:var(--ink)}
.btn-ghost:hover{background:var(--ink);color:var(--paper)}
.btn-sm{padding:10px 18px;font-size:14px;min-height:38px}
.btn-light{background:#F7F5F0;color:var(--dark)}
.btn-light:hover{background:#fff;color:var(--dark)}
.btn-outline-light{background:transparent;color:#F7F5F0;border-color:rgba(255,255,255,.32)}
.btn-outline-light:hover{background:#F7F5F0;color:var(--dark);border-color:#F7F5F0}

.channel-row{height:52px;display:flex;align-items:center}
.channels{
  display:flex;align-items:center;gap:10px;
  overflow-x:auto;white-space:nowrap;
  scrollbar-width:none;-ms-overflow-style:none;
  padding:2px 0;
  width:100%;
}
.channels::-webkit-scrollbar{display:none}
.chan{
  display:inline-flex;align-items:center;
  height:34px;padding:0 16px;border-radius:999px;
  font-size:14px;font-weight:500;color:var(--ink-2);
  border:1px solid var(--line);
  background:transparent;
  transition:all var(--t);
  flex:0 0 auto;
}
.chan:hover{background:var(--accent-soft);border-color:rgba(28,59,51,.28);color:var(--brand)}
.chan.is-active{background:var(--brand);border-color:var(--brand);color:#F7F5F0}
.chan.is-active:hover{background:var(--brand-2);border-color:var(--brand-2);color:#F7F5F0}

@media (max-width:767px){
  .brand-row{height:56px;gap:12px}
  .brand-main{font-size:18px}
  .brand-sub{display:none}
  .search-form{
    position:absolute;left:0;right:0;top:calc(100% + 10px);
    max-width:none;display:none;z-index:30;
    box-shadow:var(--shadow-2);
  }
  .brand-search.is-open .search-form{display:flex}
  .search-toggle{display:inline-flex}
  .header-actions .link-quiet{display:none}
  .header-actions .btn{padding:11px 16px;font-size:14px}
  .channel-row{height:48px}
}

/* ---------- hero ---------- */
.hero{padding:64px 0 48px;position:relative}
@media (min-width:1024px){.hero{padding:88px 0 64px}}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;font-weight:600;color:var(--ink-3);
  letter-spacing:.08em;margin-bottom:20px;
}
.eyebrow::before{content:"";width:22px;height:1px;background:var(--accent)}
.hero-title{
  font-size:clamp(30px,5.2vw,54px);
  font-weight:800;line-height:1.14;letter-spacing:-.02em;
  max-width:15em;color:var(--ink);
}
.hero-sub{
  margin-top:22px;font-size:17px;line-height:1.85;color:var(--ink-2);
  max-width:620px;
}
.hero-cta{display:flex;flex-wrap:wrap;gap:14px;margin-top:32px}
.hero-metrics{display:flex;flex-wrap:wrap;gap:32px;margin-top:40px;padding-top:24px;border-top:1px solid var(--line)}
.metric{display:flex;flex-direction:column;gap:2px}
.metric-num{font-size:19px;font-weight:700;color:var(--ink);font-feature-settings:"tnum";letter-spacing:-.01em}
.metric-label{font-size:13px;color:var(--ink-3)}
.hero-figure{
  position:relative;border-radius:var(--radius);overflow:hidden;
  border:1px solid var(--line);background:var(--paper);
  box-shadow:var(--shadow-1);
  aspect-ratio:16/10;
}
.hero-figure img{width:100%;height:100%;object-fit:cover}
.figure-badge{
  position:absolute;left:16px;bottom:16px;
  padding:6px 14px;border-radius:999px;
  border:1px solid rgba(255,255,255,.7);
  background:rgba(15,26,23,.42);
  color:#F7F5F0;font-size:13px;font-weight:600;
  letter-spacing:.04em;
}
@media (max-width:1023px){
  .hero-figure{margin-top:36px;aspect-ratio:4/3}
}

/* ---------- trust band ---------- */
.trust-band{border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.trust-list{
  display:flex;flex-wrap:wrap;align-items:center;
  min-height:60px;padding:14px 0;
}
.trust-list li{
  display:flex;flex-direction:column;gap:2px;
  flex:1 1 200px;padding:6px 24px;
  border-left:1px solid var(--line);
}
.trust-list li:first-child{border-left:0;padding-left:0}
.trust-list strong{font-size:14px;font-weight:700;color:var(--ink)}
.trust-list span{font-size:13px;color:var(--ink-3)}
@media (max-width:767px){
  .trust-list{flex-wrap:nowrap;overflow-x:auto;scrollbar-width:none}
  .trust-list::-webkit-scrollbar{display:none}
  .trust-list li{flex:0 0 200px}
}

/* ---------- section base ---------- */
.section{padding:72px 0}
@media (min-width:1024px){.section{padding:104px 0}}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:34px;flex-wrap:wrap}
.section-title{font-size:clamp(24px,3.2vw,32px);font-weight:700;letter-spacing:-.01em;line-height:1.25}
.section-desc{margin-top:10px;font-size:15px;color:var(--ink-2);max-width:620px}
.textlink{
  font-size:15px;font-weight:600;color:var(--brand);
  border-bottom:1px solid currentColor;padding-bottom:2px;
  transition:color var(--t),border-color var(--t);
}
.textlink:hover{color:var(--accent);border-color:var(--accent)}

/* ---------- value grid ---------- */
.value-card{
  background:var(--paper-2);border:1px solid var(--line);
  border-radius:var(--radius);padding:28px;
  transition:transform var(--t),box-shadow var(--t),border-color var(--t);
  display:block;height:100%;
}
.value-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-2);border-color:rgba(28,59,51,.28)}
.value-num{
  display:block;font-size:13px;font-weight:700;letter-spacing:.14em;
  color:var(--accent);margin-bottom:16px;font-feature-settings:"tnum";
}
.value-card h3{font-size:21px;font-weight:700;margin-bottom:12px;line-height:1.4}
.value-card p{font-size:15px;color:var(--ink-2);line-height:1.8;margin-bottom:18px}
.value-card .textlink{font-size:14px}
.value-stack{display:flex;flex-direction:column;gap:24px;height:100%}
.value-stack .value-card{flex:1}
@media (max-width:1023px){
  .value-stack{margin-top:24px}
}

/* ---------- shot rail ---------- */
.rail-wrap{position:relative}
.rail-nav{display:flex;gap:10px}
.rail-btn{
  width:40px;height:40px;border-radius:999px;
  border:1px solid var(--line);background:var(--paper-2);color:var(--ink-2);
  display:inline-flex;align-items:center;justify-content:center;
  transition:all var(--t);
}
.rail-btn:hover{background:var(--ink);color:var(--paper);border-color:var(--ink)}
.shot-rail{
  display:flex;gap:24px;overflow-x:auto;
  scroll-snap-type:x mandatory;
  padding-bottom:6px;
  scrollbar-width:none;-ms-overflow-style:none;
}
.shot-rail::-webkit-scrollbar{display:none}
.shot-card{
  flex:0 0 auto;
  min-width:clamp(260px,40vw,420px);
  scroll-snap-align:start;
  background:var(--paper-2);border:1px solid var(--line);
  border-radius:var(--radius);overflow:hidden;
  transition:transform var(--t),box-shadow var(--t);
}
.shot-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-2)}
.shot-thumb{aspect-ratio:16/10;overflow:hidden;background:var(--paper);border-bottom:1px solid var(--line)}
.shot-thumb img{width:100%;height:100%;object-fit:cover;transition:transform 400ms var(--ease)}
.shot-card:hover .shot-thumb img{transform:scale(1.03)}
.shot-body{padding:20px}
.shot-body h3{font-size:17px;font-weight:700;margin-bottom:6px}
.shot-body p{font-size:14px;color:var(--ink-2);line-height:1.7}
@media (max-width:767px){.rail-nav{display:none}}

/* ---------- spec cards ---------- */
.spec-card{
  background:var(--paper-2);border:1px solid var(--line);
  border-radius:var(--radius);padding:28px;height:100%;
}
.spec-card h3{font-size:18px;font-weight:700;margin-bottom:6px}
.spec-card .spec-note{font-size:13px;color:var(--ink-3);margin-bottom:18px}
.spec-row{
  display:flex;align-items:baseline;justify-content:space-between;gap:16px;
  padding:12px 0;border-bottom:1px dashed var(--line);
  font-size:14px;
}
.spec-row:last-child{border-bottom:0;padding-bottom:0}
.spec-row dt{color:var(--ink-2);flex:0 0 auto}
.spec-row dd{margin:0;font-weight:600;color:var(--ink);font-feature-settings:"tnum";text-align:right}
.spec-row dd small{display:block;font-size:12px;font-weight:500;color:var(--ink-3)}

/* ---------- voices ---------- */
.voices{display:flex;gap:24px;align-items:flex-start;flex-wrap:wrap}
.voice-col{flex:1 1 320px;display:flex;flex-direction:column;gap:24px}
.voice-col.offset{margin-top:32px}
.voice-card{
  background:var(--paper-2);border:1px solid var(--line);
  border-radius:var(--radius);padding:26px;
  position:relative;
}
.voice-quote{
  font-size:34px;line-height:1;color:var(--accent);opacity:.55;
  font-family:Georgia,serif;display:block;margin-bottom:10px;
}
.voice-card p{font-size:15px;line-height:1.85;color:var(--ink-2)}
.voice-meta{display:flex;align-items:center;gap:12px;margin-top:20px;padding-top:18px;border-top:1px solid var(--line)}
.avatar{
  width:32px;height:32px;border-radius:999px;flex:0 0 32px;
  background:radial-gradient(circle at 32% 30%,var(--mist),var(--brand));
}
.voice-name{font-size:14px;font-weight:600;color:var(--ink)}
.voice-tag{
  font-size:12px;color:var(--ink-3);
  border:1px solid var(--line);border-radius:999px;padding:2px 10px;
  margin-left:auto;
}
@media (max-width:767px){.voice-col.offset{margin-top:0}}

/* ---------- download panel ---------- */
.dl-panel{
  background:var(--dark);color:#EDEAE3;
  border-radius:0;
  padding:72px 0;
}
@media (min-width:1024px){.dl-panel{padding:96px 0}}
.dl-panel .section-title{color:#F7F5F0}
.dl-panel .section-desc{color:rgba(237,234,227,.72)}
.dl-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:12px;margin-top:8px}
@media (min-width:768px){.dl-grid{grid-template-columns:repeat(3,minmax(0,1fr))}}
.dl-btn{
  display:flex;flex-direction:column;gap:4px;justify-content:center;
  padding:14px 16px;min-height:64px;
  border:1px solid rgba(255,255,255,.12);
  border-radius:var(--radius-sm);
  background:transparent;color:#EDEAE3;
  transition:all var(--t);
}
.dl-btn:hover{background:#F7F5F0;color:var(--dark);border-color:#F7F5F0}
.dl-btn .dl-name{display:flex;align-items:center;gap:8px;font-size:14px;font-weight:600}
.dl-btn .dl-ver{font-size:12px;color:rgba(237,234,227,.6);font-feature-settings:"tnum"}
.dl-btn:hover .dl-ver{color:rgba(15,26,23,.62)}
.dl-side{
  display:flex;flex-direction:column;align-items:flex-start;gap:14px;
  margin-top:28px;
}
.qr{
  width:96px;height:96px;border-radius:12px;background-color:#fff;
  background-image:
    repeating-linear-gradient(90deg,#14201C 0 5px,transparent 5px 11px),
    repeating-linear-gradient(0deg,#14201C 0 5px,transparent 5px 11px);
  position:relative;flex:0 0 96px;
}
.qr::after{content:"";position:absolute;inset:34px;background:#fff;border-radius:4px;border:2px solid #14201C}
.dl-side p{font-size:13px;color:rgba(237,234,227,.62);line-height:1.7;max-width:280px}
@media (min-width:1024px){
  .dl-side{flex-direction:row;align-items:center;gap:18px;margin-top:24px}
}
@media (max-width:767px){
  .dl-grid{grid-template-columns:1fr}
  .dl-side{align-items:center;text-align:center;margin-left:auto;margin-right:auto;width:100%}
  .dl-side p{max-width:none;text-align:center}
}

/* ---------- news ---------- */
.news-card{
  display:flex;flex-direction:column;height:100%;
  background:var(--paper-2);border:1px solid var(--line);
  border-radius:var(--radius);overflow:hidden;
  transition:transform var(--t),box-shadow var(--t),border-color var(--t);
}
.news-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-2);border-color:rgba(28,59,51,.28)}
.news-card:focus-visible{outline:2px solid var(--accent);outline-offset:2px}
.news-thumb{position:relative;aspect-ratio:16/10;overflow:hidden;background:var(--paper);border-bottom:1px solid var(--line)}
.news-thumb img{width:100%;height:100%;object-fit:cover;transition:transform 400ms var(--ease)}
.news-card:hover .news-thumb img{transform:scale(1.03)}
.news-badge{
  position:absolute;left:14px;bottom:14px;
  font-size:12px;font-weight:600;color:var(--ink);
  background:rgba(255,255,255,.94);
  border:1px solid var(--line);
  border-radius:999px;padding:3px 11px;
}
.news-body{padding:20px;display:flex;flex-direction:column;flex:1}
.news-body h3{
  font-size:16px;font-weight:700;line-height:1.55;color:var(--ink);
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
  margin-bottom:10px;
}
.news-body p{
  font-size:14px;line-height:1.75;color:var(--ink-2);
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
  flex:1;
}
.news-foot{
  display:flex;align-items:center;justify-content:space-between;
  margin-top:18px;padding-top:14px;border-top:1px solid var(--line);
  font-size:13px;color:var(--ink-3);
}
.news-foot i{transition:transform var(--t);color:var(--brand)}
.news-card:hover .news-foot i{transform:translateX(4px)}
.empty-state{
  border:1px dashed var(--line);border-radius:var(--radius);
  min-height:180px;display:flex;flex-direction:column;
  align-items:center;justify-content:center;gap:16px;
  color:var(--ink-3);font-size:14px;text-align:center;padding:24px;
}

/* ---------- 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:20px;
  width:100%;text-align:left;padding:22px 0;
  font-size:17px;font-weight:600;color:var(--ink);
  transition:color var(--t);
}
.faq-q:hover{color:var(--brand-2)}
.faq-icon{position:relative;width:16px;height:16px;flex:0 0 16px;transition:transform 200ms var(--ease)}
.faq-icon::before,.faq-icon::after{content:"";position:absolute;background:var(--brand);border-radius:2px}
.faq-icon::before{left:0;top:7px;width:16px;height:2px}
.faq-icon::after{top:0;left:7px;width:2px;height:16px}
.faq-item.is-open .faq-icon{transform:rotate(45deg)}
.faq-a{display:grid;grid-template-rows:0fr;transition:grid-template-rows 200ms var(--ease)}
.faq-item.is-open .faq-a{grid-template-rows:1fr}
.faq-a-inner{overflow:hidden}
.faq-a p{font-size:15px;line-height:1.85;color:var(--ink-2);padding-bottom:24px;max-width:740px}

/* ---------- cta strip ---------- */
.cta-strip{
  background:var(--accent-soft);
  border-radius:var(--radius);
  padding:40px;
  display:flex;align-items:center;justify-content:space-between;gap:28px;flex-wrap:wrap;
}
.cta-strip h2{font-size:clamp(20px,2.6vw,26px);font-weight:700;line-height:1.35}
.cta-strip p{margin-top:8px;font-size:15px;color:var(--ink-2);max-width:560px}
.cta-actions{display:flex;gap:12px;flex-wrap:wrap}
@media (max-width:639px){.cta-strip{padding:26px}}

/* ---------- footer ---------- */
.site-footer{background:var(--dark);color:rgba(237,234,227,.78);padding:64px 0 0;margin-top:0}
.footer-grid{display:grid;grid-template-columns:1fr;gap:40px}
@media (min-width:640px){.footer-grid{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media (min-width:1024px){.footer-grid{grid-template-columns:1.4fr .8fr .8fr 1fr;gap:48px}}
.footer-brand .brand-main{color:#F7F5F0;font-size:20px}
.footer-brand .brand-sub{color:rgba(237,234,227,.5);border-color:rgba(255,255,255,.18)}
.footer-note{margin-top:18px;font-size:14px;line-height:1.8;color:rgba(237,234,227,.6);max-width:300px}
.footer-meta{margin-top:16px;font-size:13px;color:rgba(237,234,227,.42)}
.footer-title{
  font-size:13px;letter-spacing:.08em;color:rgba(237,234,227,.5);
  font-weight:600;margin-bottom:18px;
}
.footer-links li{margin-bottom:12px}
.footer-links a{
  font-size:15px;color:rgba(237,234,227,.82);
  border-bottom:2px solid transparent;padding-bottom:1px;
  transition:color var(--t),border-color var(--t);
}
.footer-links a:hover{color:#F7F5F0;border-color:var(--accent)}
.footer-qr{display:flex;gap:16px;align-items:flex-start}
.footer-qr .qr{width:96px;height:96px}
.footer-qr p{font-size:13px;line-height:1.7;color:rgba(237,234,227,.6)}
.footer-bottom{
  margin-top:48px;border-top:1px solid rgba(255,255,255,.12);
  padding:22px 0;display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;
  font-size:13px;color:rgba(237,234,227,.45);
}
.footer-bottom a{color:rgba(237,234,227,.6)}
.footer-bottom a:hover{color:#F7F5F0}

/* ---------- motion ---------- */
.reveal{opacity:0;transform:translateY(14px);transition:opacity 400ms var(--ease),transform 400ms var(--ease)}
.reveal.is-in{opacity:1;transform:none}
@media (prefers-reduced-motion:reduce){
  *{animation-duration:.001ms !important;transition-duration:.001ms !important}
  .reveal{opacity:1;transform:none}
  html{scroll-behavior:auto}
}

/* roulang page: article */
:root{
  --paper:#F7F5F0;
  --paper-2:#FFFFFF;
  --ink:#14201C;
  --ink-2:#4A5751;
  --ink-3:#8A9490;
  --line:#E2DED4;
  --brand:#1C3B33;
  --brand-2:#2F5A4E;
  --mist:#8FB3A8;
  --accent:#C4602F;
  --accent-soft:#F2E3D8;
  --dark:#0F1A17;
  --r-card:14px;
  --r-btn:10px;
  --shadow-1:0 1px 2px rgba(15,26,23,.06);
  --shadow-2:0 8px 24px -12px rgba(15,26,23,.16);
  --ease:180ms cubic-bezier(.2,.7,.3,1);
}
*,*::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:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,sans-serif;
  font-size:16px;
  line-height:1.8;
  font-feature-settings:"tnum";
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border:0}
p{margin:0}
h1,h2,h3,h4{margin:0;line-height:1.3;font-weight:700;color:var(--ink)}
a{color:var(--brand);text-decoration:none;transition:color var(--ease),background var(--ease),border-color var(--ease),transform var(--ease),box-shadow var(--ease)}
a:hover{color:var(--accent)}
button{font-family:inherit}
input,button{font-size:inherit}
a:focus-visible,button:focus-visible,input:focus-visible{outline:2px solid var(--accent);outline-offset:2px}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 20px}
@media(min-width:1024px){.container{padding:0 32px}}

/* ---------- header ---------- */
.site-header{
  position:sticky;top:0;z-index:80;
  background:rgba(247,245,240,.95);
  -webkit-backdrop-filter:blur(10px);
  backdrop-filter:blur(10px);
  border-bottom:1px solid var(--line);
}
.brand-row{
  display:flex;align-items:center;gap:18px;
  min-height:68px;position:relative;
}
.brand{display:flex;align-items:baseline;gap:7px;flex:none;color:var(--ink)}
.brand-main{font-size:19px;font-weight:800;letter-spacing:-.01em;color:var(--ink)}
.brand-sub{font-size:12px;font-weight:500;color:var(--ink-3);letter-spacing:.02em}
.brand:hover .brand-main{color:var(--brand)}
.brand-search{flex:1 1 auto;display:flex;justify-content:center;position:relative}
.search-form{
  display:flex;align-items:center;gap:9px;
  width:100%;max-width:340px;
  padding:9px 18px;
  background:var(--paper-2);
  border:1px solid var(--line);
  border-radius:999px;
  transition:border-color var(--ease),box-shadow var(--ease);
}
.search-form i{color:var(--ink-3);font-size:14px}
.search-form input{
  flex:1;border:0;background:transparent;outline:none;
  font-size:14px;color:var(--ink);min-width:0;
}
.search-form input::placeholder{color:var(--ink-3)}
.search-form:focus-within{border-color:var(--brand);box-shadow:0 0 0 3px rgba(196,96,47,.22)}
.search-toggle{
  display:none;align-items:center;justify-content:center;
  width:40px;height:40px;border-radius:999px;
  border:1px solid var(--line);background:var(--paper-2);
  color:var(--ink-2);cursor:pointer;transition:all var(--ease);
}
.search-toggle:hover{background:var(--accent-soft);color:var(--ink)}
.header-actions{display:flex;align-items:center;gap:16px;flex:none;margin-left:auto}
.link-quiet{font-size:14px;color:var(--ink-2)}
.link-quiet:hover{color:var(--accent);text-decoration:underline;text-underline-offset:4px;text-decoration-thickness:1px}

.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:13px 26px;min-height:44px;
  border-radius:var(--r-btn);border:1px solid transparent;
  font-size:15px;font-weight:600;line-height:1.2;
  cursor:pointer;transition:background var(--ease),color var(--ease),border-color var(--ease),transform var(--ease),box-shadow var(--ease);
}
.btn:active{transform:scale(.985)}
.btn-primary{background:var(--brand);color:#F7F5F0}
.btn-primary:hover{background:var(--brand-2);color:#FFFFFF}
.btn-outline{background:transparent;border-color:var(--ink);color:var(--ink)}
.btn-outline:hover{background:var(--ink);color:#F7F5F0}
.btn-light{background:#F7F5F0;color:var(--dark)}
.btn-light:hover{background:#FFFFFF;color:var(--dark)}
.btn-sm{padding:9px 18px;min-height:40px;font-size:14px}
.btn-block{width:100%}

.channel-row{overflow-x:auto;scrollbar-width:none;-ms-overflow-style:none;padding-bottom:12px}
.channel-row::-webkit-scrollbar{display:none}
.channels{display:flex;align-items:center;gap:10px;min-width:max-content}
.chan{
  display:inline-flex;align-items:center;height:34px;padding:0 16px;
  border-radius:999px;border:1px solid var(--line);
  background:transparent;color:var(--ink-2);
  font-size:14px;white-space:nowrap;
  transition:all var(--ease);
}
.chan:hover{background:var(--accent-soft);color:var(--ink);border-color:rgba(28,59,51,.28)}
.chan.is-active{background:var(--brand);color:#F7F5F0;border-color:var(--brand)}

/* ---------- banner ---------- */
.page-banner{
  position:relative;
  padding:34px 0 40px;
  border-bottom:1px solid var(--line);
  background-color:#EFEBE2;
  background-image:url('/assets/images/backpic/back-2.png');
  background-size:cover;
  background-position:center;
  overflow:hidden;
}
.page-banner::before{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(247,245,240,.94) 0%,rgba(247,245,240,.985) 100%);
}
.page-banner > .container{position:relative;z-index:1}
.breadcrumb{
  display:flex;flex-wrap:wrap;align-items:center;gap:8px;
  font-size:13px;color:var(--ink-3);margin-bottom:20px;
}
.breadcrumb a{color:var(--ink-3)}
.breadcrumb a:hover{color:var(--brand)}
.breadcrumb span.sep{color:var(--line)}
.breadcrumb .current{
  color:var(--ink-2);max-width:min(100%,520px);
  overflow:hidden;text-overflow:ellipsis;white-space:nowrap;
}
.cat-badge{
  display:inline-flex;align-items:center;gap:6px;
  padding:4px 12px;border:1px solid var(--line);
  border-radius:999px;background:var(--paper-2);
  font-size:13px;color:var(--ink-2);
}
.banner-cat{margin-bottom:16px}
.page-banner h1{
  font-size:30px;line-height:1.22;letter-spacing:-.02em;font-weight:800;
  max-width:900px;color:var(--ink);overflow-wrap:break-word;
}
@media(min-width:768px){.page-banner h1{font-size:40px}}
@media(min-width:1200px){.page-banner h1{font-size:46px}}
.meta-row{
  display:flex;flex-wrap:wrap;align-items:center;gap:10px 14px;
  margin-top:20px;font-size:13px;color:var(--ink-3);
}
.meta-row .divide{width:1px;height:12px;background:var(--line)}
.meta-row strong{color:var(--ink-2);font-weight:600}

/* ---------- article layout ---------- */
.article-layout{
  display:grid;grid-template-columns:minmax(0,1fr);
  gap:44px;padding:52px 0 80px;
}
@media(min-width:1200px){
  .article-layout{grid-template-columns:minmax(0,1fr) 300px;gap:56px;padding:64px 0 96px}
}
.article-main{min-width:0}
.article-body{
  max-width:740px;
  font-size:16px;line-height:1.8;color:var(--ink-2);
  overflow-wrap:break-word;
}
.article-body h2{
  position:relative;
  font-size:22px;line-height:1.42;font-weight:700;color:var(--ink);
  margin:1.9em 0 .7em;padding-left:14px;
  scroll-margin-top:140px;
}
@media(min-width:768px){.article-body h2{font-size:24px}}
.article-body h2::before{
  content:"";position:absolute;left:0;top:.36em;
  width:3px;height:18px;border-radius:2px;background:var(--accent);
}
.article-body h3{
  font-size:18px;font-weight:600;color:var(--ink);
  margin:1.6em 0 .55em;scroll-margin-top:140px;
}
.article-body h4{font-size:16px;font-weight:600;color:var(--ink);margin:1.4em 0 .5em}
.article-body p{margin:0 0 1.1em}
.article-body a{color:var(--brand);text-decoration:underline;text-underline-offset:3px;text-decoration-thickness:1px}
.article-body a:hover{color:var(--accent)}
.article-body ul,.article-body ol{margin:0 0 1.2em;padding-left:1.5em}
.article-body ul{list-style:disc}
.article-body ol{list-style:decimal}
.article-body li{margin:0 0 .5em;line-height:1.8}
.article-body li::marker{color:var(--brand)}
.article-body blockquote{
  margin:1.5em 0;padding:16px 20px;
  border-left:3px solid var(--brand);
  background:var(--accent-soft);
  border-radius:0 10px 10px 0;
  color:var(--ink);
}
.article-body blockquote p:last-child{margin:0}
.article-body img{border-radius:14px;margin:1.5em 0 .6em;width:100%;height:auto;background:var(--paper)}
.article-body figure{margin:1.5em 0}
.article-body figcaption{font-size:13px;color:var(--ink-3);text-align:center;margin-top:10px}
.article-body pre{
  background:var(--paper-2);
  border:1px solid var(--line);
  border-radius:12px;
  padding:16px 18px;
  overflow-x:auto;
  font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;
  font-size:14px;line-height:1.7;color:var(--ink);
  margin:1.4em 0;
}
.article-body code{
  font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;
  font-size:.92em;
  background:var(--paper-2);
  border:1px solid var(--line);
  border-radius:6px;
  padding:1px 6px;
  color:var(--brand);
}
.article-body pre code{background:none;border:0;padding:0;color:inherit}
.article-body table{
  display:block;
  width:100%;
  max-width:100%;
  overflow-x:auto;
  border-collapse:collapse;
  margin:1.5em 0;
  font-size:14.5px;
}
.article-body th,.article-body td{
  border:1px solid var(--line);
  padding:10px 14px;
  text-align:left;
  min-width:120px;
}
.article-body th{background:var(--paper-2);color:var(--ink);font-weight:600}
.article-body hr{border:0;border-top:1px solid var(--line);margin:2em 0}

.empty-state{
  border:1px dashed var(--line);
  border-radius:var(--r-card);
  background:var(--paper-2);
  padding:56px 24px;
  text-align:center;
  min-height:180px;
  display:flex;flex-direction:column;align-items:center;justify-content:center;gap:16px;
}
.empty-state p{font-size:15px;color:var(--ink-3)}
.empty-state i{font-size:26px;color:var(--mist)}

.article-actions{
  max-width:740px;
  margin-top:44px;padding-top:22px;
  border-top:1px solid var(--line);
  display:flex;flex-wrap:wrap;align-items:center;gap:12px;
}
.article-actions .spacer{flex:1}
.icon-btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:40px;padding:0 16px;
  border:1px solid var(--line);border-radius:999px;
  background:var(--paper-2);color:var(--ink-2);
  font-size:14px;cursor:pointer;transition:all var(--ease);
}
.icon-btn:hover{background:var(--accent-soft);color:var(--ink);border-color:rgba(28,59,51,.28)}
.icon-btn.is-on{background:var(--brand);border-color:var(--brand);color:#F7F5F0}

/* ---------- sidebar ---------- */
.article-side{min-width:0}
@media(min-width:1200px){
  .article-side{position:sticky;top:132px;align-self:start}
}
.side-card{
  background:var(--paper-2);
  border:1px solid var(--line);
  border-radius:var(--r-card);
  padding:20px;
  box-shadow:var(--shadow-1);
  margin-bottom:20px;
}
.side-title{
  font-size:13px;letter-spacing:.08em;
  color:var(--ink-3);font-weight:600;margin-bottom:14px;
}
.toc-list li{border-bottom:1px dashed var(--line)}
.toc-list li:last-child{border-bottom:0}
.toc-list a{
  display:block;padding:9px 0 9px 12px;
  font-size:14px;line-height:1.5;color:var(--ink-2);
  border-left:2px solid transparent;
  transition:all var(--ease);
}
.toc-list a:hover{color:var(--brand);border-left-color:var(--accent);background:var(--paper)}
.toc-empty{font-size:13.5px;color:var(--ink-3);padding:4px 0}
.side-note{font-size:13.5px;line-height:1.75;color:var(--ink-3);margin-bottom:14px}
.dl-card .side-title{color:var(--ink);letter-spacing:0;font-size:15px}

/* ---------- related ---------- */
.related{padding:0 0 88px}
.section-head{
  display:flex;flex-wrap:wrap;align-items:flex-end;justify-content:space-between;
  gap:12px;margin-bottom:30px;
}
.section-head h2{font-size:24px;letter-spacing:-.01em}
@media(min-width:768px){.section-head h2{font-size:30px}}
.section-head p{font-size:14px;color:var(--ink-3);margin-top:8px}
.text-link{
  font-size:14.5px;color:var(--brand);
  text-decoration:underline;text-underline-offset:4px;text-decoration-thickness:1px;
}
.text-link:hover{color:var(--accent)}
.rel-grid{display:grid;grid-template-columns:1fr;gap:24px}
@media(min-width:640px){.rel-grid{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media(min-width:1024px){.rel-grid{grid-template-columns:repeat(3,minmax(0,1fr))}}
.rel-card{
  display:flex;flex-direction:column;
  background:var(--paper-2);
  border:1px solid var(--line);
  border-radius:var(--r-card);
  overflow:hidden;
  box-shadow:var(--shadow-1);
  transition:transform var(--ease),box-shadow var(--ease),border-color var(--ease);
}
.rel-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-2);border-color:rgba(28,59,51,.28)}
.rel-media{position:relative;aspect-ratio:16/10;overflow:hidden;background:var(--paper)}
.rel-media img{width:100%;height:100%;object-fit:cover;transition:transform 320ms var(--ease)}
.rel-card:hover .rel-media img{transform:scale(1.03)}
.rel-body{padding:18px 20px 20px;display:flex;flex-direction:column;gap:10px;flex:1}
.rel-body .cat-badge{align-self:flex-start;font-size:12px;padding:3px 10px}
.rel-body h3{font-size:16.5px;line-height:1.5;font-weight:600;color:var(--ink)}
.rel-foot{
  display:flex;align-items:center;justify-content:space-between;
  font-size:13px;color:var(--ink-3);margin-top:auto;padding-top:6px;
}
.rel-foot i{transition:transform var(--ease)}
.rel-card:hover .rel-foot i{transform:translateX(4px);color:var(--accent)}

/* ---------- dark cta ---------- */
.cta-dark{background:var(--dark);color:#E8EDEA;padding:64px 0}
@media(min-width:1024px){.cta-dark{padding:80px 0}}
.cta-grid{display:grid;grid-template-columns:1fr;gap:36px;align-items:center}
@media(min-width:1024px){.cta-grid{grid-template-columns:1.35fr .65fr;gap:56px}}
.cta-dark h2{color:#F5F7F5;font-size:26px;line-height:1.3;letter-spacing:-.01em}
@media(min-width:768px){.cta-dark h2{font-size:32px}}
.cta-dark p{color:#A9B8B1;font-size:15px;margin-top:14px;max-width:560px}
.cta-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:26px}
.cta-qr{
  border:1px solid rgba(255,255,255,.12);
  border-radius:var(--r-card);
  padding:22px;text-align:center;
  background:rgba(255,255,255,.03);
}
.cta-qr .qr{
  width:96px;height:96px;margin:0 auto 14px;border-radius:12px;
  background-color:#fff;
  background-image:repeating-linear-gradient(45deg,rgba(15,26,23,.85) 0 3px,transparent 3px 9px),repeating-linear-gradient(-45deg,rgba(15,26,23,.55) 0 2px,transparent 2px 8px);
}
.cta-qr p{font-size:13px;color:#A9B8B1;margin:0}

/* ---------- footer ---------- */
.site-footer{background:var(--dark);color:#C6D1CB;padding:64px 0 0}
.footer-grid{display:grid;grid-template-columns:1fr;gap:36px;padding-bottom:44px}
@media(min-width:640px){.footer-grid{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media(min-width:1024px){.footer-grid{grid-template-columns:1.4fr 1fr 1fr 1.1fr;gap:48px}}
.footer-brand .brand-main{color:#F5F7F5;font-size:18px;font-weight:800}
.footer-brand .brand-sub{color:#8A9A93;font-size:12px}
.footer-note{font-size:14px;line-height:1.8;color:#A9B8B1;margin-top:16px;max-width:320px}
.footer-meta{font-size:13px;color:#7E8D86;margin-top:12px}
.footer-title{
  font-size:13px;letter-spacing:.08em;color:#8A9A93;
  font-weight:600;margin-bottom:16px;
}
.footer-links li{margin-bottom:10px}
.footer-links a{font-size:15px;color:#C6D1CB;position:relative}
.footer-links a:hover{color:#FFFFFF}
.footer-links a::after{
  content:"";position:absolute;left:0;bottom:-2px;width:100%;height:2px;
  background:var(--accent);transform:scaleX(0);transform-origin:left;
  transition:transform 220ms var(--ease);
}
.footer-links a:hover::after{transform:scaleX(1)}
.footer-qr{display:flex;gap:14px;align-items:flex-start}
.footer-qr .qr{
  width:96px;height:96px;flex:none;border-radius:12px;
  background-color:#fff;
  background-image:repeating-linear-gradient(45deg,rgba(15,26,23,.85) 0 3px,transparent 3px 9px),repeating-linear-gradient(-45deg,rgba(15,26,23,.55) 0 2px,transparent 2px 8px);
}
.footer-qr p{font-size:13px;line-height:1.7;color:#A9B8B1}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.1);
  padding:20px 0 26px;
  display:flex;flex-wrap:wrap;gap:10px 24px;
  justify-content:space-between;
  font-size:13px;color:#7E8D86;
}

/* ---------- responsive header ---------- */
@media(max-width:767px){
  .brand-row{min-height:56px;gap:10px}
  .brand-main{font-size:17px}
  .brand-sub{font-size:11px}
  .brand-search{flex:0 0 auto;justify-content:flex-end;order:3;margin-left:auto}
  .header-actions{order:4;margin-left:0;gap:8px}
  .link-quiet{display:none}
  .search-form{display:none}
  .search-toggle{display:inline-flex}
  .brand-search.is-open .search-form{
    display:flex;position:absolute;left:0;right:0;top:calc(100% + 8px);
    max-width:none;padding:8px 14px;background:var(--paper-2);
    box-shadow:var(--shadow-2);z-index:90;
  }
  .btn-sm{padding:8px 14px;min-height:38px;font-size:13.5px}
  .page-banner{padding:26px 0 30px}
  .article-layout{padding:40px 0 60px}
}
@media(prefers-reduced-motion:reduce){
  *,*::before,*::after{animation-duration:.001ms !important;transition-duration:.001ms !important}
  html{scroll-behavior:auto}
}

/* roulang page: category1 */
:root{
  --paper:#F7F5F0;
  --paper-2:#FFFFFF;
  --ink:#14201C;
  --ink-2:#4A5751;
  --ink-3:#8A9490;
  --line:#E2DED4;
  --brand:#1C3B33;
  --brand-2:#2F5A4E;
  --mist:#8FB3A8;
  --accent:#C4602F;
  --accent-soft:#F2E3D8;
  --dark:#0F1A17;
  --shadow-1:0 1px 2px rgba(15,26,23,.06);
  --shadow-2:0 8px 24px -12px rgba(15,26,23,.16);
  --radius-card:14px;
  --radius-btn:10px;
  --t:180ms cubic-bezier(.2,.7,.3,1);
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  background:var(--paper);
  color:var(--ink);
  font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,"Segoe UI",Arial,sans-serif;
  font-size:16px;
  line-height:1.8;
  -webkit-font-smoothing:antialiased;
  font-feature-settings:"tnum" 1;
  overflow-x:hidden;
}
img{max-width:100%;display:block;border:0}
a{color:var(--brand);text-decoration:none;transition:color var(--t),border-color var(--t),background var(--t)}
a:hover{color:var(--brand-2)}
p{margin:0 0 1em}
h1,h2,h3,h4{margin:0;font-weight:700;color:var(--ink);line-height:1.25;letter-spacing:-.01em}
ul,ol{margin:0;padding:0;list-style:none}
button{font-family:inherit;font-size:inherit;cursor:pointer}
:focus-visible{outline:2px solid var(--accent);outline-offset:2px}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 20px}
@media (min-width:1024px){.container{padding:0 32px}}

/* ---------- header ---------- */
.site-header{background:var(--paper);border-bottom:1px solid var(--line);position:relative;z-index:50}
.brand-row{display:flex;align-items:center;gap:20px;height:68px}
.brand{display:flex;align-items:baseline;gap:8px;flex:0 0 auto}
.brand-main{font-size:19px;font-weight:800;color:var(--ink);letter-spacing:-.02em;line-height:1}
.brand-sub{font-size:11.5px;color:var(--ink-3);letter-spacing:.06em;line-height:1}
.brand:hover .brand-main{color:var(--brand)}
.brand-search{flex:1 1 auto;max-width:360px;margin:0 auto;position:relative}
.search-form{position:relative;display:flex;align-items:center;margin:0}
.search-form i{position:absolute;left:14px;font-size:13px;color:var(--ink-3);pointer-events:none}
.search-form input[type="search"]{
  width:100%;height:40px;border-radius:999px;border:1px solid var(--line);
  background:var(--paper-2);padding:0 16px 0 38px;font-size:14px;color:var(--ink);
  margin:0;transition:border-color var(--t),box-shadow var(--t);
}
.search-form input[type="search"]::placeholder{color:var(--ink-3)}
.search-form input[type="search"]:focus{border-color:var(--brand);outline:2px solid var(--accent);outline-offset:2px;box-shadow:none}
.search-toggle{display:none;width:38px;height:38px;border-radius:999px;border:1px solid var(--line);background:var(--paper-2);color:var(--brand);align-items:center;justify-content:center}
.search-toggle:hover{background:var(--accent-soft);border-color:var(--brand)}
.header-actions{display:flex;align-items:center;gap:16px;flex:0 0 auto}
.link-quiet{font-size:14px;color:var(--ink-2);padding:6px 2px;border-bottom:1px solid transparent}
.link-quiet:hover{color:var(--ink);border-bottom-color:var(--accent)}
.channel-row{position:sticky;top:0;z-index:45;background:var(--paper);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.channels{display:flex;gap:8px;overflow-x:auto;padding:9px 0;scrollbar-width:none;-ms-overflow-style:none}
.channels::-webkit-scrollbar{display:none}
.chan{
  flex:0 0 auto;padding:8px 16px;border-radius:999px;font-size:14px;font-weight:500;
  color:var(--ink-2);border:1px solid var(--line);background:transparent;white-space:nowrap;
  transition:background var(--t),color var(--t),border-color var(--t);
}
.chan:hover{background:var(--accent-soft);color:var(--brand);border-color:transparent}
.chan.is-active{background:var(--brand);color:var(--paper);border-color:var(--brand)}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:14px 26px;border-radius:var(--radius-btn);font-size:15px;font-weight:600;
  border:1px solid transparent;line-height:1.2;transition:background var(--t),color var(--t),border-color var(--t),transform var(--t),box-shadow var(--t);
}
.btn:active{transform:scale(.985)}
.btn-primary{background:var(--brand);color:#F7F5F0;border-color:var(--brand)}
.btn-primary:hover{background:var(--brand-2);color:#F7F5F0;border-color:var(--brand-2);box-shadow:var(--shadow-2)}
.btn-ghost{background:transparent;color:var(--ink);border-color:var(--ink)}
.btn-ghost:hover{background:var(--ink);color:var(--paper);border-color:var(--ink)}
.btn-sm{padding:10px 18px;font-size:14px}
.btn-block{width:100%}
.text-link{display:inline-flex;align-items:center;gap:6px;font-size:14px;font-weight:600;color:var(--brand);border-bottom:1px solid var(--brand);padding-bottom:2px}
.text-link:hover{border-bottom-color:var(--accent);color:var(--brand-2)}
.text-link i{transition:transform var(--t)}
.text-link:hover i{transform:translateX(4px)}

/* ---------- badges / tags ---------- */
.tag{display:inline-flex;align-items:center;gap:6px;font-size:13px;padding:4px 10px;border-radius:999px;border:1px solid var(--line);color:var(--ink-2);background:var(--paper-2)}
.tag-accent{color:var(--brand);border-color:rgba(28,59,51,.24);background:var(--accent-soft)}
.tag-dark{color:rgba(247,245,240,.82);border-color:rgba(255,255,255,.24);background:transparent}

/* ---------- breadcrumb ---------- */
.crumb{padding:22px 0 0;font-size:13px;color:var(--ink-3)}
.crumb ol{display:flex;flex-wrap:wrap;align-items:center;gap:8px}
.crumb li{display:inline-flex;align-items:center;gap:8px}
.crumb li+li::before{content:"/";color:var(--line)}
.crumb a{color:var(--ink-3)}
.crumb a:hover{color:var(--brand)}
.crumb .current{color:var(--ink-2)}

/* ---------- hero ---------- */
.page-hero{padding:28px 0 64px}
.hero-grid{display:grid;grid-template-columns:1.1fr .9fr;gap:48px;align-items:center}
.hero-copy{max-width:640px}
.hero-eyebrow{margin-bottom:16px}
.page-hero h1{font-size:clamp(30px,4vw,48px);line-height:1.14;font-weight:800;letter-spacing:-.02em;margin-bottom:18px}
.page-hero h1 .thin{display:block;font-size:.46em;font-weight:600;color:var(--ink-3);letter-spacing:0;margin-top:12px;line-height:1.4}
.hero-lead{font-size:16.5px;line-height:1.85;color:var(--ink-2);max-width:580px;margin-bottom:14px}
.hero-sub{font-size:15px;line-height:1.85;color:var(--ink-3);max-width:560px;margin-bottom:26px}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-bottom:28px}
.metrics{display:flex;flex-wrap:wrap;gap:28px;border-top:1px solid var(--line);padding-top:20px}
.metric-num{font-size:21px;font-weight:700;color:var(--ink);font-variant-numeric:tabular-nums;line-height:1.2}
.metric-label{font-size:13px;color:var(--ink-3);margin-top:2px}
.hero-visual{position:relative;border-radius:var(--radius-card);overflow:hidden;border:1px solid var(--line);box-shadow:var(--shadow-2);aspect-ratio:16/10;background:var(--paper-2)}
.hero-visual img{width:100%;height:100%;object-fit:cover;transition:transform 400ms cubic-bezier(.2,.7,.3,1)}
.hero-visual:hover img{transform:scale(1.03)}
.badge-float{position:absolute;left:16px;bottom:16px;background:var(--paper);border:1px solid var(--line);border-radius:999px;padding:5px 12px;font-size:12.5px;color:var(--brand);box-shadow:var(--shadow-1)}

/* ---------- section ---------- */
.section{padding:56px 0}
@media (min-width:768px){.section{padding:72px 0}}
@media (min-width:1024px){.section{padding:88px 0}}
.section-head{max-width:720px;margin-bottom:32px}
.section-head h2{font-size:clamp(24px,3vw,32px);font-weight:700;margin-bottom:12px}
.section-head p{font-size:15.5px;line-height:1.85;color:var(--ink-2);margin:0;max-width:660px}
.section-head .tag{margin-bottom:14px}
.rule-line{width:100%;height:1px;background:var(--line);border:0;margin:0}

/* ---------- timeline ---------- */
.split{display:grid;grid-template-columns:1.55fr .95fr;gap:48px;align-items:start}
.timeline{position:relative;padding-top:4px}
.step{position:relative;display:grid;grid-template-columns:32px 1fr;gap:20px;padding-bottom:34px}
.step:last-child{padding-bottom:0}
.step::before{content:"";position:absolute;left:15.5px;top:38px;bottom:6px;width:1px;background:var(--line)}
.step:last-child::before{display:none}
.step-num{width:32px;height:32px;border-radius:999px;border:1px solid var(--line);background:var(--paper-2);display:flex;align-items:center;justify-content:center;font-size:12.5px;font-weight:700;color:var(--brand);font-variant-numeric:tabular-nums;position:relative;z-index:1}
.step:first-child .step-num{background:var(--brand);color:var(--paper);border-color:var(--brand)}
.step-body h3{font-size:19px;font-weight:700;margin:3px 0 8px}
.step-body p{font-size:15px;line-height:1.85;color:var(--ink-2);margin:0 0 10px;max-width:620px}
.step-body .step-note{display:flex;flex-wrap:wrap;gap:10px;align-items:center}
.step-note .mini{font-size:12.5px;color:var(--ink-3);border:1px solid var(--line);border-radius:999px;padding:3px 10px;background:var(--paper-2)}
.step-note .mini-accent{color:var(--accent);border-color:rgba(196,96,47,.32);background:var(--accent-soft)}

/* ---------- aside ---------- */
.aside-stack{display:grid;gap:20px;position:sticky;top:96px}
.aside-card{background:var(--paper-2);border:1px solid var(--line);border-radius:var(--radius-card);padding:24px;box-shadow:var(--shadow-1)}
.aside-card h3{font-size:15px;font-weight:700;letter-spacing:.02em;margin-bottom:14px}
.spec-row{display:flex;align-items:baseline;justify-content:space-between;gap:14px;padding:10px 0;border-bottom:1px dashed var(--line);font-size:14px}
.spec-row:last-child{border-bottom:0;padding-bottom:0}
.spec-row .k{color:var(--ink-2)}
.spec-row .v{font-weight:600;color:var(--ink);font-variant-numeric:tabular-nums;text-align:right}
.aside-thumb{border-radius:var(--radius-card);overflow:hidden;border:1px solid var(--line);background:var(--paper-2)}
.aside-thumb img{width:100%;aspect-ratio:16/10;object-fit:cover}
.aside-thumb .cap{font-size:12.5px;color:var(--ink-3);padding:10px 14px;border-top:1px solid var(--line);line-height:1.6}

/* ---------- dark download panel ---------- */
.section-dark{background:var(--dark);color:#EDEAE2;padding:56px 0}
@media (min-width:1024px){.section-dark{padding:80px 0}}
.section-dark h2{color:#F7F5F0;font-size:clamp(24px,3vw,32px);margin-bottom:14px}
.section-dark p{color:rgba(237,234,226,.72);font-size:15.5px;line-height:1.85}
.dl-layout{display:grid;grid-template-columns:1fr 1.1fr;gap:48px;align-items:start}
.dl-copy{max-width:460px}
.dl-copy .tag{margin-bottom:16px}
.dl-tip{font-size:13.5px;color:rgba(237,234,226,.55);margin-top:18px;border-left:2px solid var(--accent);padding-left:12px}
.dl-grid{display:grid;grid-template-columns:1fr 1fr;gap:12px}
.dl-btn{
  display:flex;flex-direction:column;gap:4px;padding:14px 16px;border-radius:var(--radius-btn);
  border:1px solid rgba(255,255,255,.12);background:transparent;color:#EDEAE2;text-align:left;
  transition:background var(--t),color var(--t),border-color var(--t),transform var(--t);
}
.dl-btn:hover{background:#F7F5F0;color:var(--dark);border-color:#F7F5F0;transform:translateY(-2px)}
.dl-btn .p{font-size:14px;font-weight:600;display:flex;align-items:center;gap:8px}
.dl-btn .p i{font-size:14px;opacity:.85}
.dl-btn .v{font-size:12px;opacity:.62;font-variant-numeric:tabular-nums}
.dl-scan{display:flex;align-items:center;gap:16px;margin-top:20px;padding-top:20px;border-top:1px solid rgba(255,255,255,.12)}
.qr{width:96px;height:96px;border-radius:12px;background-color:#FFFFFF;flex:0 0 auto;
  background-image:
    linear-gradient(45deg,rgba(15,26,23,.14) 25%,transparent 25%,transparent 75%,rgba(15,26,23,.14) 75%),
    linear-gradient(45deg,rgba(15,26,23,.14) 25%,transparent 25%,transparent 75%,rgba(15,26,23,.14) 75%);
  background-size:14px 14px;background-position:0 0,7px 7px;
  border:4px solid #fff;box-shadow:0 0 0 1px rgba(255,255,255,.18);
}
.dl-scan p{font-size:12.5px;line-height:1.7;margin:0;color:rgba(237,234,226,.6)}

/* ---------- check list ---------- */
.check-list{border-top:1px solid var(--line);margin-top:8px}
.check-item{display:grid;grid-template-columns:56px 1fr 1.15fr;gap:24px;padding:26px 0;border-bottom:1px solid var(--line);align-items:start;transition:background var(--t)}
.check-item:hover{background:rgba(255,255,255,.55)}
.check-num{font-size:13px;font-weight:700;color:var(--accent);letter-spacing:.08em;font-variant-numeric:tabular-nums;padding-top:4px}
.check-item h3{font-size:18px;font-weight:700;margin:0}
.check-item p{margin:0;font-size:15px;line-height:1.85;color:var(--ink-2);max-width:560px}
.check-item .code{font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;font-size:13px;background:var(--paper);border:1px solid var(--line);border-radius:6px;padding:1px 6px;color:var(--ink)}

/* ---------- faq ---------- */
.faq-wrap{max-width:840px}
.faq-list{border-top:1px solid var(--line);margin-top:8px}
.faq-list details{border-bottom:1px solid var(--line)}
.faq-list summary{
  display:flex;align-items:center;justify-content:space-between;gap:20px;
  padding:20px 0;font-size:17px;font-weight:600;color:var(--ink);cursor:pointer;list-style:none;
}
.faq-list summary::-webkit-details-marker{display:none}
.faq-list summary::after{
  content:"";width:11px;height:11px;flex:0 0 auto;
  border-right:1.5px solid var(--ink-2);border-bottom:1.5px solid var(--ink-2);
  transform:rotate(45deg);transition:transform 200ms cubic-bezier(.2,.7,.3,1);margin-top:-4px;
}
.faq-list details[open] summary::after{transform:rotate(-135deg);margin-top:4px}
.faq-list summary:hover{color:var(--brand-2)}
.faq-body{padding:0 0 22px;font-size:15px;line-height:1.88;color:var(--ink-2);max-width:740px}
.faq-body ol{margin:10px 0 0;padding-left:0;counter-reset:sub}
.faq-body ol li{position:relative;padding-left:26px;margin-bottom:8px;counter-increment:sub}
.faq-body ol li::before{content:counter(sub);position:absolute;left:0;top:2px;font-size:12px;font-weight:700;color:var(--brand);border:1px solid var(--line);border-radius:999px;width:18px;height:18px;display:flex;align-items:center;justify-content:center;background:var(--paper-2)}

/* ---------- cta band ---------- */
.cta-band{
  background:var(--accent-soft);border:1px solid var(--line);border-radius:18px;
  padding:32px;display:grid;grid-template-columns:1.3fr .7fr;gap:32px;align-items:center;
}
.cta-band h2{font-size:clamp(22px,2.6vw,28px);margin-bottom:10px}
.cta-band p{margin:0;font-size:15px;line-height:1.85;color:var(--ink-2);max-width:520px}
.cta-actions{display:flex;flex-direction:column;gap:12px}

/* ---------- footer ---------- */
.site-footer{background:var(--dark);color:rgba(237,234,226,.72);padding:56px 0 0;margin-top:56px}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.1fr;gap:32px;padding-bottom:44px}
.footer-brand .brand-main{color:#F7F5F0}
.footer-brand .brand-sub{color:rgba(247,245,240,.5)}
.footer-note{font-size:14px;line-height:1.85;color:rgba(237,234,226,.62);margin:16px 0 10px;max-width:320px}
.footer-meta{font-size:13px;color:rgba(237,234,226,.42);margin:0;font-variant-numeric:tabular-nums}
.footer-title{font-size:13px;letter-spacing:.08em;color:rgba(247,245,240,.46);margin:0 0 16px}
.footer-links li{margin-bottom:10px}
.footer-links a{font-size:15px;color:rgba(237,234,226,.78);border-bottom:1px solid transparent;padding-bottom:2px}
.footer-links a:hover{color:#F7F5F0;border-bottom-color:rgba(247,245,240,.7)}
.footer-qr{display:flex;align-items:flex-start;gap:14px}
.footer-qr .qr{width:88px;height:88px}
.footer-qr p{font-size:12.5px;line-height:1.7;margin:0;color:rgba(237,234,226,.55)}
.footer-bottom{border-top:1px solid rgba(255,255,255,.12);padding:20px 0 24px;display:flex;flex-wrap:wrap;gap:10px 24px;justify-content:space-between;font-size:13px;color:rgba(237,234,226,.45)}

/* ---------- reveal ---------- */
.reveal{opacity:0;transform:translateY(14px);transition:opacity 400ms cubic-bezier(.2,.7,.3,1),transform 400ms cubic-bezier(.2,.7,.3,1)}
.reveal.is-in{opacity:1;transform:none}

/* ---------- responsive ---------- */
@media (max-width:1023px){
  .hero-grid{grid-template-columns:1fr;gap:32px}
  .split{grid-template-columns:1fr;gap:32px}
  .aside-stack{position:static}
  .dl-layout{grid-template-columns:1fr;gap:32px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
  .check-item{grid-template-columns:44px 1fr;gap:16px}
  .check-item p{grid-column:2/3}
}
@media (max-width:767px){
  .brand-row{height:56px;gap:12px}
  .brand-main{font-size:17px}
  .brand-sub{font-size:10.5px}
  .brand-search{flex:0 0 auto;margin-left:auto;max-width:none}
  .search-form{display:none}
  .search-toggle{display:inline-flex}
  .brand-search.is-open .search-form{
    display:block;position:absolute;top:46px;right:0;width:min(84vw,320px);z-index:70;
    background:var(--paper-2);border:1px solid var(--line);border-radius:14px;padding:10px;box-shadow:var(--shadow-2);
  }
  .header-actions{gap:10px}
  .header-actions .link-quiet{display:none}
  .page-hero{padding:22px 0 44px}
  .hero-lead{font-size:15.5px}
  .hero-actions .btn{flex:1 1 100%}
  .metrics{gap:20px}
  .dl-grid{grid-template-columns:1fr}
  .dl-scan{flex-direction:column;align-items:center;text-align:center}
  .cta-band{grid-template-columns:1fr;padding:26px;gap:22px}
  .cta-actions{flex-direction:row;flex-wrap:wrap}
  .cta-actions .btn{flex:1 1 auto}
  .footer-grid{grid-template-columns:1fr;gap:28px;padding-bottom:32px}
  .footer-bottom{flex-direction:column;gap:8px}
  .step{grid-template-columns:28px 1fr;gap:14px;padding-bottom:28px}
  .step-num{width:28px;height:28px;font-size:11.5px}
  .step::before{left:13.5px;top:34px}
  .check-item p{grid-column:1/-1}
}
@media (max-width:519px){
  .brand-sub{display:none}
  .page-hero h1{font-size:30px}
  .section-head h2{font-size:23px}
  .tag{font-size:12px}
  .faq-list summary{font-size:16px;padding:18px 0}
}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{transition-duration:.01ms!important;animation-duration:.01ms!important}
  .reveal{opacity:1;transform:none}
  .hero-visual:hover img{transform:none}
}

/* roulang page: category3 */
:root{
  --paper:#F7F5F0;
  --paper-2:#FFFFFF;
  --ink:#14201C;
  --ink-2:#4A5751;
  --ink-3:#8A9490;
  --line:#E2DED4;
  --brand:#1C3B33;
  --brand-2:#2F5A4E;
  --mist:#8FB3A8;
  --accent:#C4602F;
  --accent-soft:#F2E3D8;
  --dark:#0F1A17;
  --shadow-1:0 1px 2px rgba(15,26,23,.06);
  --shadow-2:0 8px 24px -12px rgba(15,26,23,.16);
  --r-card:14px;
  --r-btn:10px;
  --ease:180ms cubic-bezier(.2,.7,.3,1);
  --head-h:120px;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;}
body{
  margin:0;
  background:var(--paper);
  color:var(--ink);
  font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,sans-serif;
  font-size:16px;
  line-height:1.8;
  font-feature-settings:"tnum";
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;}
a{color:var(--brand);text-decoration:none;transition:color var(--ease),border-color var(--ease),background var(--ease);}
a:hover{color:var(--brand-2);}
ul,ol{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4,p{margin:0;}
button{font-family:inherit;cursor:pointer;}
input{font-family:inherit;}
:focus-visible{outline:2px solid var(--accent);outline-offset:2px;border-radius:4px;}

.container{
  width:100%;
  max-width:1200px;
  margin:0 auto;
  padding:0 20px;
}
@media (min-width:1024px){
  .container{padding:0 32px;}
}

/* ---------- Header ---------- */
.site-header{
  background:var(--paper-2);
  border-bottom:1px solid var(--line);
  position:sticky;
  top:0;
  z-index:60;
}
.brand-row{
  display:flex;
  align-items:center;
  gap:24px;
  min-height:68px;
  padding:10px 0;
}
.brand{
  display:flex;
  align-items:baseline;
  gap:8px;
  flex:0 0 auto;
  color:var(--ink);
}
.brand-main{
  font-size:22px;
  font-weight:800;
  letter-spacing:-0.02em;
  color:var(--brand);
}
.brand-sub{
  font-size:12px;
  font-weight:500;
  letter-spacing:.08em;
  color:var(--ink-3);
  border-left:1px solid var(--line);
  padding-left:8px;
}
.brand-search{
  flex:1 1 auto;
  display:flex;
  justify-content:center;
  position:relative;
}
.search-form{
  display:flex;
  align-items:center;
  gap:10px;
  width:100%;
  max-width:340px;
  border:1px solid var(--line);
  border-radius:999px;
  padding:8px 18px;
  background:var(--paper);
  transition:border-color var(--ease),box-shadow var(--ease);
}
.search-form i{color:var(--ink-3);font-size:14px;}
.search-form input{
  border:0;
  background:transparent;
  outline:none;
  font-size:14px;
  color:var(--ink);
  width:100%;
}
.search-form input::placeholder{color:var(--ink-3);}
.search-form:focus-within{
  border-color:var(--brand);
  box-shadow:0 0 0 2px rgba(196,96,47,.35);
}
.search-toggle{
  display:none;
  width:40px;height:40px;
  border:1px solid var(--line);
  background:var(--paper-2);
  border-radius:999px;
  color:var(--brand);
  align-items:center;
  justify-content:center;
}
.header-actions{
  display:flex;
  align-items:center;
  gap:18px;
  flex:0 0 auto;
}
.link-quiet{
  font-size:14px;
  color:var(--ink-2);
  border-bottom:1px solid transparent;
  padding-bottom:2px;
}
.link-quiet:hover{color:var(--brand);border-bottom-color:var(--accent);}
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  border-radius:var(--r-btn);
  font-weight:600;
  border:1px solid transparent;
  transition:background var(--ease),color var(--ease),border-color var(--ease),transform var(--ease),box-shadow var(--ease);
  min-height:44px;
  padding:12px 24px;
  font-size:15px;
}
.btn-primary{
  background:var(--brand);
  color:#F7F5F0;
  border-color:var(--brand);
}
.btn-primary:hover{background:var(--brand-2);color:#fff;}
.btn-primary:active{transform:scale(.985);}
.btn-outline{
  background:transparent;
  color:var(--ink);
  border-color:var(--ink);
}
.btn-outline:hover{background:var(--accent-soft);border-color:var(--brand);color:var(--brand);}
.btn-sm{min-height:40px;padding:9px 18px;font-size:14px;}

.channel-row{
  border-top:1px solid var(--line);
  overflow-x:auto;
  scrollbar-width:none;
  -ms-overflow-style:none;
}
.channel-row::-webkit-scrollbar{display:none;}
.channels{
  display:flex;
  gap:10px;
  padding:10px 0;
  white-space:nowrap;
  min-height:52px;
  align-items:center;
}
.chan{
  display:inline-block;
  padding:7px 16px;
  border-radius:999px;
  border:1px solid var(--line);
  font-size:14px;
  color:var(--ink-2);
  background:transparent;
  transition:background var(--ease),color var(--ease),border-color var(--ease);
}
.chan:hover{background:var(--accent-soft);color:var(--brand);border-color:var(--accent-soft);}
.chan.is-active{
  background:var(--brand);
  border-color:var(--brand);
  color:#F7F5F0;
}

/* ---------- Page hero ---------- */
.page-main{padding:36px 0 0;}
.breadcrumb{
  font-size:13px;
  color:var(--ink-3);
  display:flex;
  flex-wrap:wrap;
  gap:8px;
  align-items:center;
  margin-bottom:24px;
}
.breadcrumb a{color:var(--ink-3);}
.breadcrumb a:hover{color:var(--brand);}
.breadcrumb .sep{color:var(--line);}
.breadcrumb .cur{color:var(--ink-2);}

.page-hero{
  display:grid;
  grid-template-columns:minmax(0,1.15fr) minmax(0,.85fr);
  gap:48px;
  align-items:center;
  padding:8px 0 56px;
  border-bottom:1px solid var(--line);
}
.hero-tag{
  display:inline-flex;
  align-items:center;
  gap:8px;
  font-size:13px;
  letter-spacing:.06em;
  color:var(--brand);
  background:var(--accent-soft);
  border:1px solid rgba(196,96,47,.25);
  border-radius:999px;
  padding:5px 14px;
  margin-bottom:18px;
}
.page-hero h1{
  font-size:clamp(30px,4.4vw,50px);
  line-height:1.14;
  letter-spacing:-0.02em;
  font-weight:800;
  max-width:16em;
}
.page-hero h1 .hl{color:var(--brand-2);}
.hero-lead{
  margin-top:20px;
  font-size:16px;
  color:var(--ink-2);
  max-width:620px;
}
.hero-stats{
  display:flex;
  flex-wrap:wrap;
  gap:12px 28px;
  margin-top:28px;
}
.hero-stat{
  display:flex;
  flex-direction:column;
  gap:2px;
  padding-right:28px;
  border-right:1px solid var(--line);
}
.hero-stat:last-child{border-right:0;padding-right:0;}
.hero-stat b{
  font-size:20px;
  font-weight:700;
  color:var(--brand);
  letter-spacing:-0.01em;
}
.hero-stat span{font-size:13px;color:var(--ink-3);}
.hero-art{
  border-radius:var(--r-card);
  overflow:hidden;
  border:1px solid var(--line);
  box-shadow:var(--shadow-2);
  aspect-ratio:16 / 11;
  background:var(--paper);
}
.hero-art img{width:100%;height:100%;object-fit:cover;}

/* ---------- Anchor pills ---------- */
.anchor-bar{
  display:flex;
  gap:10px;
  overflow-x:auto;
  padding:22px 0;
  scrollbar-width:none;
  -ms-overflow-style:none;
  border-bottom:1px solid var(--line);
}
.anchor-bar::-webkit-scrollbar{display:none;}
.anchor-pill{
  flex:0 0 auto;
  font-size:14px;
  padding:7px 16px;
  border-radius:999px;
  border:1px solid var(--line);
  color:var(--ink-2);
  background:var(--paper-2);
  white-space:nowrap;
  transition:all var(--ease);
}
.anchor-pill:hover{border-color:rgba(28,59,51,.28);color:var(--brand);background:var(--accent-soft);}

/* ---------- Sections ---------- */
.section{padding:72px 0;}
.section-head{
  max-width:740px;
  margin-bottom:40px;
}
.section-label{
  font-size:13px;
  letter-spacing:.1em;
  color:var(--accent);
  font-weight:600;
  margin-bottom:12px;
}
.section-head h2{
  font-size:clamp(24px,3vw,32px);
  line-height:1.25;
  font-weight:700;
  letter-spacing:-0.01em;
}
.section-head p{
  margin-top:14px;
  color:var(--ink-2);
  font-size:16px;
}

/* ---------- Zigzag flow ---------- */
.flow-list{display:flex;flex-direction:column;gap:72px;}
.flow-row{
  display:grid;
  grid-template-columns:5fr 7fr;
  gap:48px;
  align-items:center;
}
.flow-row.rev{grid-template-columns:7fr 5fr;}
.flow-row.rev .flow-media{order:2;}
.flow-row.rev .flow-body{order:1;}
.flow-media{
  border-radius:var(--r-card);
  overflow:hidden;
  border:1px solid var(--line);
  background:var(--paper);
  box-shadow:var(--shadow-1);
  aspect-ratio:16 / 10;
  transition:box-shadow var(--ease),transform var(--ease);
}
.flow-media img{width:100%;height:100%;object-fit:cover;transition:transform 320ms cubic-bezier(.2,.7,.3,1);}
.flow-row:hover .flow-media{box-shadow:var(--shadow-2);transform:translateY(-3px);}
.flow-row:hover .flow-media img{transform:scale(1.03);}
.flow-num{
  font-size:13px;
  font-weight:600;
  letter-spacing:.14em;
  color:var(--accent);
  display:block;
  margin-bottom:10px;
}
.flow-body h3{
  font-size:clamp(20px,2.2vw,24px);
  font-weight:700;
  line-height:1.35;
  letter-spacing:-0.01em;
}
.flow-body p{
  margin-top:14px;
  color:var(--ink-2);
  font-size:16px;
  max-width:600px;
}
.flow-points{
  margin-top:18px;
  display:flex;
  flex-direction:column;
  gap:8px;
}
.flow-points li{
  position:relative;
  padding-left:20px;
  font-size:15px;
  color:var(--ink-2);
}
.flow-points li::before{
  content:"";
  position:absolute;
  left:2px;
  top:11px;
  width:6px;
  height:6px;
  border-radius:50%;
  background:var(--mist);
}
.text-link{
  display:inline-flex;
  align-items:center;
  gap:6px;
  margin-top:20px;
  font-size:15px;
  font-weight:600;
  color:var(--brand);
  border-bottom:1px solid var(--brand);
  padding-bottom:2px;
  transition:color var(--ease),border-color var(--ease),gap var(--ease);
}
.text-link i{font-size:12px;transition:transform var(--ease);}
.text-link:hover{color:var(--accent);border-bottom-color:var(--accent);}
.text-link:hover i{transform:translateX(4px);}

/* ---------- Dark panel ---------- */
.panel-dark{
  background:var(--dark);
  color:#EDEAE3;
  border-radius:20px;
  padding:52px 48px;
  position:relative;
  overflow:hidden;
}
.panel-dark::after{
  content:"";
  position:absolute;
  right:-120px;
  top:-120px;
  width:340px;
  height:340px;
  border-radius:50%;
  border:1px solid rgba(255,255,255,.08);
  pointer-events:none;
}
.panel-head{max-width:640px;margin-bottom:36px;position:relative;z-index:1;}
.panel-head .section-label{color:var(--mist);}
.panel-head h2{color:#F7F5F0;font-size:clamp(24px,3vw,30px);font-weight:700;line-height:1.3;}
.panel-head p{color:rgba(237,234,227,.72);margin-top:12px;font-size:15px;}
.module-grid{
  display:grid;
  grid-template-columns:repeat(3,minmax(0,1fr));
  gap:16px;
  position:relative;
  z-index:1;
}
.module-item{
  border:1px solid rgba(255,255,255,.12);
  border-radius:12px;
  padding:20px;
  background:rgba(255,255,255,.03);
  transition:border-color var(--ease),background var(--ease),transform var(--ease);
}
.module-item:hover{border-color:rgba(255,255,255,.28);background:rgba(255,255,255,.06);transform:translateY(-3px);}
.module-item h4{font-size:16px;font-weight:600;color:#F7F5F0;}
.module-item p{font-size:13px;color:rgba(237,234,227,.62);margin-top:6px;line-height:1.7;}
.state{
  display:inline-flex;
  align-items:center;
  gap:6px;
  margin-top:14px;
  font-size:12px;
  letter-spacing:.04em;
  padding:3px 10px;
  border-radius:999px;
  border:1px solid rgba(143,179,168,.5);
  color:var(--mist);
}
.state.warn{border-color:rgba(196,96,47,.6);color:#E0A184;}
.state.beta{border-color:rgba(255,255,255,.28);color:rgba(237,234,227,.75);}
.state::before{content:"";width:6px;height:6px;border-radius:50%;background:currentColor;}

/* ---------- FAQ ---------- */
.faq{border-top:1px solid var(--line);}
.faq-item{border-bottom:1px solid var(--line);}
.faq-q{
  width:100%;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:24px;
  background:transparent;
  border:0;
  text-align:left;
  padding:22px 4px;
  font-size:17px;
  font-weight:600;
  color:var(--ink);
  transition:color var(--ease);
}
.faq-q:hover{color:var(--brand);}
.faq-icon{
  position:relative;
  width:16px;height:16px;
  flex:0 0 16px;
}
.faq-icon::before,.faq-icon::after{
  content:"";
  position:absolute;
  background:var(--brand);
  transition:transform 200ms cubic-bezier(.2,.7,.3,1),background var(--ease);
}
.faq-icon::before{left:0;top:7px;width:16px;height:2px;}
.faq-icon::after{left:7px;top:0;width:2px;height:16px;}
.faq-item.is-open .faq-icon::after{transform:rotate(45deg);opacity:0;}
.faq-item.is-open .faq-q{color:var(--brand);}
.faq-a{
  max-height:0;
  overflow:hidden;
  transition:max-height 240ms cubic-bezier(.2,.7,.3,1);
}
.faq-a-inner{
  padding:0 4px 24px;
  color:var(--ink-2);
  font-size:15px;
  line-height:1.8;
  max-width:760px;
}

/* ---------- CTA ---------- */
.cta-band{
  border:1px solid var(--line);
  background:var(--paper-2);
  border-radius:20px;
  padding:48px;
  display:grid;
  grid-template-columns:1.3fr .7fr;
  gap:40px;
  align-items:center;
  box-shadow:var(--shadow-1);
}
.cta-band h2{font-size:clamp(24px,3vw,30px);font-weight:700;line-height:1.3;letter-spacing:-0.01em;}
.cta-band p{margin-top:12px;color:var(--ink-2);font-size:16px;max-width:520px;}
.cta-actions{display:flex;flex-wrap:wrap;gap:12px;justify-content:flex-end;}
.cta-actions .btn{min-width:150px;}

/* ---------- Pagination ---------- */
.page-bottom{
  padding:16px 0 84px;
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  justify-content:space-between;
  gap:20px;
}
.pager{display:flex;gap:8px;flex-wrap:wrap;}
.pager a,.pager span{
  width:36px;height:36px;
  display:inline-flex;
  align-items:center;
  justify-content:center;
  border-radius:8px;
  border:1px solid var(--line);
  font-size:14px;
  color:var(--ink-2);
  background:var(--paper-2);
  transition:all var(--ease);
}
.pager a:hover{background:var(--accent-soft);border-color:rgba(28,59,51,.28);color:var(--brand);}
.pager .is-current{
  background:var(--brand);
  border-color:var(--brand);
  color:#F7F5F0;
  font-weight:600;
}
.pager .pager-label{
  width:auto;padding:0 14px;font-size:14px;border:0;background:transparent;color:var(--ink-3);
}
.back-home{
  font-size:15px;
  color:var(--ink-2);
  display:inline-flex;
  align-items:center;
  gap:8px;
  border-bottom:1px solid transparent;
  padding-bottom:2px;
}
.back-home:hover{color:var(--brand);border-bottom-color:var(--accent);}
.back-home i{font-size:12px;}

/* ---------- Footer ---------- */
.site-footer{
  background:var(--dark);
  color:rgba(237,234,227,.78);
  padding:64px 0 0;
  margin-top:0;
}
.footer-grid{
  display:grid;
  grid-template-columns:1.6fr 1fr 1fr 1.2fr;
  gap:40px;
  padding-bottom:48px;
}
.site-footer .brand-main{color:#F7F5F0;}
.site-footer .brand-sub{color:rgba(237,234,227,.55);border-left-color:rgba(255,255,255,.16);}
.footer-note{
  margin-top:16px;
  font-size:14px;
  line-height:1.8;
  color:rgba(237,234,227,.62);
  max-width:320px;
}
.footer-meta{
  margin-top:14px;
  font-size:13px;
  color:rgba(237,234,227,.45);
}
.footer-title{
  font-size:13px;
  letter-spacing:.08em;
  color:rgba(237,234,227,.5);
  margin-bottom:16px;
}
.footer-links{display:flex;flex-direction:column;gap:11px;}
.footer-links a{
  font-size:15px;
  color:rgba(237,234,227,.82);
  border-bottom:2px solid transparent;
  padding-bottom:1px;
  display:inline-block;
  align-self:flex-start;
  transition:color var(--ease),border-color var(--ease),transform var(--ease);
}
.footer-links a:hover{color:#F7F5F0;border-bottom-color:var(--mist);transform:translateX(2px);}
.footer-qr{display:flex;gap:16px;align-items:flex-start;}
.qr{
  width:96px;height:96px;
  border-radius:12px;
  background:#FFFFFF;
  flex:0 0 96px;
  position:relative;
  overflow:hidden;
}
.qr::before,.qr::after{
  content:"";
  position:absolute;
  background:var(--dark);
  opacity:.85;
}
.qr::before{
  left:12px;top:12px;right:12px;bottom:12px;
  background:
    linear-gradient(var(--dark),var(--dark)) 0 0/26px 26px no-repeat,
    linear-gradient(var(--dark),var(--dark)) 100% 0/26px 26px no-repeat,
    linear-gradient(var(--dark),var(--dark)) 0 100%/26px 26px no-repeat,
    radial-gradient(circle at 50% 50%,var(--dark) 0 12px,transparent 12px);
  opacity:.82;
}
.qr::after{content:none;}
.footer-qr p{font-size:13px;line-height:1.8;color:rgba(237,234,227,.6);max-width:190px;}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.1);
  padding:20px 0 28px;
  display:flex;
  flex-wrap:wrap;
  justify-content:space-between;
  gap:12px;
  font-size:13px;
  color:rgba(237,234,227,.45);
}

/* ---------- Reveal ---------- */
.reveal{opacity:0;transform:translateY(14px);}
.reveal.is-in{opacity:1;transform:none;transition:opacity 400ms cubic-bezier(.2,.7,.3,1),transform 400ms cubic-bezier(.2,.7,.3,1);}

/* ---------- Responsive ---------- */
@media (max-width:1023px){
  .page-hero{grid-template-columns:1fr;gap:32px;padding-bottom:44px;}
  .hero-art{aspect-ratio:16 / 10;}
  .flow-row,.flow-row.rev{grid-template-columns:1fr;gap:24px;}
  .flow-row.rev .flow-media{order:0;}
  .flow-row.rev .flow-body{order:1;}
  .module-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
  .cta-band{grid-template-columns:1fr;padding:36px;}
  .cta-actions{justify-content:flex-start;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
  .section{padding:56px 0;}
  .flow-list{gap:56px;}
}
@media (max-width:767px){
  .brand-row{gap:12px;min-height:56px;flex-wrap:nowrap;}
  .brand-search{justify-content:flex-end;}
  .search-form{display:none;}
  .search-toggle{display:inline-flex;}
  .brand-search.is-open .search-form{
    display:flex;
    position:absolute;
    right:0;
    top:48px;
    width:min(320px,calc(100vw - 40px));
    z-index:70;
    box-shadow:var(--shadow-2);
    background:var(--paper-2);
  }
  .brand-search.is-open{z-index:70;}
  .header-actions{gap:10px;}
  .link-quiet{display:none;}
  .brand-main{font-size:19px;}
  .brand-sub{font-size:10px;}
  .page-hero h1{font-size:30px;line-height:1.2;}
  .hero-stat{padding-right:18px;}
  .panel-dark{padding:32px 22px;border-radius:16px;}
  .module-grid{grid-template-columns:1fr;}
  .footer-grid{grid-template-columns:1fr;}
  .footer-bottom{flex-direction:column;align-items:flex-start;}
  .page-bottom{flex-direction:column;align-items:flex-start;}
  .faq-q{font-size:16px;padding:20px 2px;}
}
@media (max-width:519px){
  .hero-stats{gap:10px 16px;}
  .hero-stat{padding-right:16px;}
  .hero-stat b{font-size:18px;}
  .anchor-bar{padding:16px 0;}
  .flow-body p{font-size:15.5px;}
  .cta-actions .btn{width:100%;}
}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{
    animation-duration:.001ms !important;
    transition-duration:.001ms !important;
  }
  .reveal{opacity:1;transform:none;}
}

/* roulang page: category2 */
:root{
  --paper:#F7F5F0;
  --paper-2:#FFFFFF;
  --ink:#14201C;
  --ink-2:#4A5751;
  --ink-3:#8A9490;
  --line:#E2DED4;
  --brand:#1C3B33;
  --brand-2:#2F5A4E;
  --mist:#8FB3A8;
  --accent:#C4602F;
  --accent-soft:#F2E3D8;
  --dark:#0F1A17;
  --radius-card:14px;
  --radius-btn:10px;
  --shadow-1:0 1px 2px rgba(15,26,23,.06);
  --shadow-2:0 8px 24px -12px rgba(15,26,23,.16);
  --ease:cubic-bezier(.2,.7,.3,1);
  --header-h:120px;
}

*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;scroll-padding-top:150px;}
body{
  margin:0;
  background:var(--paper);
  color:var(--ink);
  font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:16px;
  line-height:1.8;
  font-feature-settings:"tnum";
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
a{color:inherit;text-decoration:none;transition:color 180ms var(--ease),border-color 180ms var(--ease),background-color 180ms var(--ease);}
img{max-width:100%;display:block;}
h1,h2,h3,h4,p,ul,ol,dl,dd,figure{margin:0;padding:0;}
ul,ol{list-style:none;}
button{font:inherit;cursor:pointer;border:0;background:none;color:inherit;}
input{font:inherit;}
h1{font-size:clamp(30px,4.4vw,52px);line-height:1.14;letter-spacing:-.02em;font-weight:800;}
h2{font-size:clamp(23px,2.8vw,32px);line-height:1.28;letter-spacing:-.01em;font-weight:700;}
h3{font-size:19px;line-height:1.45;font-weight:600;}
::selection{background:var(--accent-soft);color:var(--ink);}
a:focus-visible,button:focus-visible,summary:focus-visible,input:focus-visible{outline:2px solid var(--accent);outline-offset:3px;border-radius:8px;}

.container{max-width:1200px;margin:0 auto;padding:0 20px;}
@media (min-width:1024px){.container{padding:0 32px;}}

/* ---------- Header ---------- */
.site-header{
  position:sticky;top:0;z-index:80;
  background:rgba(247,245,240,.95);
  backdrop-filter:saturate(150%) blur(10px);
  border-bottom:1px solid var(--line);
}
.brand-row{
  display:flex;align-items:center;gap:24px;
  height:68px;position:relative;
}
.brand{display:flex;align-items:baseline;gap:8px;flex-shrink:0;}
.brand-main{font-size:20px;font-weight:800;letter-spacing:-.02em;color:var(--ink);}
.brand-sub{font-size:11px;letter-spacing:.18em;color:var(--ink-3);font-weight:600;}
.brand-search{flex:1;display:flex;justify-content:center;}
.search-form{
  display:flex;align-items:center;gap:10px;
  width:100%;max-width:340px;
  background:var(--paper-2);
  border:1px solid var(--line);
  border-radius:999px;
  padding:9px 18px;
  color:var(--ink-3);
  transition:border-color 180ms var(--ease),box-shadow 180ms var(--ease);
}
.search-form:focus-within{border-color:var(--brand);box-shadow:0 0 0 2px rgba(196,96,47,.35);}
.search-form input{
  border:0;background:transparent;outline:none;width:100%;
  font-size:14px;color:var(--ink);
}
.search-form input::placeholder{color:var(--ink-3);}
.search-toggle{
  display:none;width:40px;height:40px;border-radius:999px;
  border:1px solid var(--line);background:var(--paper-2);
  color:var(--ink-2);align-items:center;justify-content:center;
}
.search-toggle:hover{background:var(--accent-soft);color:var(--ink);}
.header-actions{display:flex;align-items:center;gap:18px;flex-shrink:0;}
.link-quiet{font-size:14px;color:var(--ink-2);border-bottom:1px solid transparent;padding-bottom:2px;}
.link-quiet:hover{color:var(--brand);border-bottom-color:var(--accent);}

.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:9px;
  padding:13px 26px;border-radius:var(--radius-btn);
  font-size:15px;font-weight:600;line-height:1.3;
  border:1px solid transparent;
  transition:background-color 180ms var(--ease),color 180ms var(--ease),border-color 180ms var(--ease),transform 180ms var(--ease),box-shadow 180ms var(--ease);
}
.btn:active{transform:scale(.985);}
.btn-sm{padding:9px 18px;font-size:14px;}
.btn-primary{background:var(--brand);color:#F5F1E8;}
.btn-primary:hover{background:var(--brand-2);color:#FFFFFF;}
.btn-ghost{background:transparent;color:var(--ink);border-color:var(--ink);}
.btn-ghost:hover{border-color:var(--brand);color:var(--brand);background:rgba(28,59,51,.04);}
.btn-light{background:#F5F1E8;color:var(--dark);}
.btn-light:hover{background:#FFFFFF;}

.channel-row{overflow-x:auto;scrollbar-width:none;-ms-overflow-style:none;}
.channel-row::-webkit-scrollbar{display:none;}
.channels{display:flex;gap:10px;padding:10px 0 12px;}
.chan{
  white-space:nowrap;font-size:14px;color:var(--ink-2);
  padding:8px 16px;border-radius:999px;
  border:1px solid var(--line);
  transition:background-color 180ms var(--ease),color 180ms var(--ease),border-color 180ms var(--ease);
}
.chan:hover{background:var(--accent-soft);border-color:#DCD3C4;color:var(--ink);}
.chan.is-active{background:var(--brand);border-color:var(--brand);color:#F5F1E8;}

/* ---------- Shared section ---------- */
.sec{padding:96px 0;}
.sec-tight{padding:64px 0;}
.sec-head{max-width:740px;margin-bottom:36px;}
.sec-head h2{margin-bottom:14px;}
.sec-desc{color:var(--ink-2);font-size:15.5px;max-width:640px;}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:12px;letter-spacing:.14em;font-weight:700;
  color:var(--brand-2);text-transform:uppercase;
  margin-bottom:16px;
}
.eyebrow::before{content:"";width:22px;height:2px;background:var(--accent);display:inline-block;}
.text-link{
  display:inline-flex;align-items:center;gap:8px;
  font-size:14px;font-weight:600;color:var(--brand);
  padding-bottom:2px;border-bottom:1px solid rgba(28,59,51,.35);
}
.text-link i{font-size:12px;transition:transform 180ms var(--ease);}
.text-link:hover{color:var(--accent);border-bottom-color:var(--accent);}
.text-link:hover i{transform:translateX(4px);}

/* ---------- Breadcrumb ---------- */
.breadcrumb{
  display:flex;align-items:center;gap:10px;flex-wrap:wrap;
  font-size:13px;color:var(--ink-3);
  padding:26px 0 0;
}
.breadcrumb a:hover{color:var(--brand);}
.breadcrumb .current{color:var(--ink-2);}

/* ---------- Hero ---------- */
.hero{padding:26px 0 80px;}
.hero-inner{margin-top:26px;}
.hero-inner > .cell{padding:0;}
.hero-copy h1{margin-bottom:18px;max-width:12em;}
.h1-sep{color:var(--ink-3);font-weight:400;}
.hero-lead{
  font-size:clamp(17px,1.6vw,20px);
  font-weight:600;color:var(--ink);
  line-height:1.6;max-width:560px;margin-bottom:14px;
}
.hero-text{color:var(--ink-2);font-size:15.5px;max-width:560px;}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:30px;}
.kpis{display:flex;flex-wrap:wrap;gap:28px;margin-top:38px;padding-top:24px;border-top:1px solid var(--line);}
.kpi{display:flex;flex-direction:column;gap:2px;}
.kpi-val{font-size:22px;font-weight:800;letter-spacing:-.01em;font-feature-settings:"tnum";}
.kpi-label{font-size:13px;color:var(--ink-3);}
.hero-visual{position:relative;}
.hero-visual img{
  width:100%;aspect-ratio:16/10;object-fit:cover;
  border-radius:var(--radius-card);
  background:var(--paper);
  border:1px solid var(--line);
  box-shadow:var(--shadow-2);
}
.visual-badge{
  position:absolute;left:18px;bottom:18px;
  background:rgba(247,245,240,.94);
  border:1px solid var(--line);
  color:var(--brand);font-size:12.5px;font-weight:600;
  padding:7px 14px;border-radius:999px;
  display:inline-flex;align-items:center;gap:8px;
}
.visual-badge::before{content:"";width:7px;height:7px;border-radius:50%;background:var(--mist);}

@media (max-width:1023px){
  .hero-inner > .cell + .cell{margin-top:38px;}
}

/* ---------- Entry cards ---------- */
.entry-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:24px;}
.entry-card{
  background:var(--paper-2);
  border:1px solid var(--line);
  border-radius:var(--radius-card);
  padding:26px;
  box-shadow:var(--shadow-1);
  display:flex;flex-direction:column;gap:14px;
  transition:transform 180ms var(--ease),box-shadow 180ms var(--ease),border-color 180ms var(--ease);
}
.entry-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-2);border-color:rgba(28,59,51,.28);}
.entry-head{display:flex;align-items:flex-start;justify-content:space-between;gap:16px;}
.entry-icon{
  width:48px;height:48px;border-radius:12px;
  display:inline-flex;align-items:center;justify-content:center;
  background:rgba(143,179,168,.18);
  color:var(--brand);font-size:19px;
  border:1px solid rgba(143,179,168,.35);
}
.entry-name{font-size:18px;font-weight:700;}
.entry-desc{font-size:14.5px;color:var(--ink-2);line-height:1.75;flex:1;}
.entry-foot{display:flex;align-items:center;justify-content:space-between;gap:12px;padding-top:4px;}
.badge{
  display:inline-flex;align-items:center;gap:6px;
  font-size:12.5px;font-weight:600;
  padding:4px 12px;border-radius:999px;
  border:1px solid var(--line);
  white-space:nowrap;
}
.badge-ok{background:rgba(143,179,168,.22);border-color:rgba(143,179,168,.45);color:#254A3F;}
.badge-auth{background:var(--accent-soft);border-color:#E6CDB8;color:#8A4A23;}
.badge-note{font-size:12.5px;color:var(--ink-3);}

/* ---------- Flow ---------- */
.flow{background:var(--paper-2);border-top:1px solid var(--line);border-bottom:1px solid var(--line);}
.flow-steps{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:20px;}
.flow-step{
  position:relative;
  background:var(--paper);
  border:1px solid var(--line);
  border-radius:var(--radius-card);
  padding:24px 22px 22px;
  transition:border-color 180ms var(--ease),transform 180ms var(--ease);
}
.flow-step:hover{border-color:rgba(28,59,51,.3);transform:translateY(-2px);}
.step-num{
  display:inline-block;font-size:12.5px;font-weight:800;letter-spacing:.08em;
  color:var(--accent);margin-bottom:12px;
}
.step-title{font-size:16.5px;font-weight:700;margin-bottom:8px;}
.step-desc{font-size:14px;color:var(--ink-2);line-height:1.75;}

/* ---------- HUD Panel ---------- */
.hud{
  background:var(--dark);
  border-radius:18px;
  padding:44px;
  border:1px solid rgba(255,255,255,.08);
  color:#DCE3DF;
}
.hud .eyebrow{color:#9FBDB2;}
.hud h2{color:#F3F0E9;margin-bottom:12px;}
.hud-lead{font-size:15px;color:#A9B6B1;max-width:620px;margin-bottom:32px;}
.hud-metrics{
  display:grid;grid-template-columns:repeat(4,minmax(0,1fr));
  gap:1px;background:rgba(255,255,255,.1);
  border:1px solid rgba(255,255,255,.1);
  border-radius:14px;overflow:hidden;margin-bottom:32px;
}
.metric{background:var(--dark);padding:22px;}
.metric-value{display:block;font-size:26px;font-weight:800;color:#F3F0E9;letter-spacing:-.01em;font-feature-settings:"tnum";line-height:1.3;}
.metric-label{display:block;font-size:12.5px;color:#8E9E98;margin-top:4px;}
.compare{display:grid;grid-template-columns:1fr 1fr;border:1px solid rgba(255,255,255,.1);border-radius:14px;overflow:hidden;}
.compare-col{padding:26px;}
.compare-col + .compare-col{border-left:1px solid rgba(255,255,255,.1);}
.compare-title{font-size:14px;font-weight:700;color:#F3F0E9;letter-spacing:.04em;margin-bottom:14px;}
.compare-row{display:flex;justify-content:space-between;gap:16px;padding:11px 0;border-bottom:1px dashed rgba(255,255,255,.13);font-size:13.5px;}
.compare-row:last-child{border-bottom:0;padding-bottom:0;}
.compare-row dt{color:#8E9E98;}
.compare-row dd{margin:0;color:#E7EDEA;font-feature-settings:"tnum";text-align:right;}
.hud-foot{margin-top:22px;font-size:12.5px;color:#7F8F89;}

/* ---------- Split ---------- */
.split-grid > .cell{padding:0;}
.split-media img{
  width:100%;aspect-ratio:16/10;object-fit:cover;
  border-radius:var(--radius-card);
  border:1px solid var(--line);
  background:var(--paper);
  box-shadow:var(--shadow-1);
}
.split-text h2{margin-bottom:16px;}
.split-text p{color:var(--ink-2);font-size:15.5px;margin-bottom:14px;max-width:600px;}
.bullets{margin-top:22px;border-top:1px solid var(--line);}
.bullets li{
  display:flex;gap:12px;align-items:flex-start;
  padding:14px 0;border-bottom:1px solid var(--line);
  font-size:14.5px;color:var(--ink-2);
}
.bullets li i{color:var(--brand-2);font-size:13px;margin-top:8px;flex-shrink:0;}
.bullets li strong{color:var(--ink);font-weight:600;}
@media (max-width:1023px){
  .split-grid > .cell + .cell{margin-top:36px;}
}

/* ---------- FAQ ---------- */
.faq{max-width:900px;}
.faq-item{border-bottom:1px solid var(--line);}
.faq-item:first-of-type{border-top:1px solid var(--line);}
.faq-item summary{
  display:flex;align-items:center;justify-content:space-between;gap:20px;
  padding:22px 0;font-size:17px;font-weight:600;color:var(--ink);
  cursor:pointer;list-style:none;
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary::after{
  content:"+";font-size:24px;font-weight:400;line-height:1;
  color:var(--ink-3);flex-shrink:0;
  transition:transform 200ms var(--ease),color 200ms var(--ease);
}
.faq-item[open] summary::after{transform:rotate(45deg);color:var(--accent);}
.faq-item summary:hover{color:var(--brand);}
.faq-body{padding:0 0 22px;font-size:15px;color:var(--ink-2);line-height:1.85;max-width:760px;}
.faq-body p + p{margin-top:10px;}
.faq-body ol{counter-reset:step;margin-top:10px;}
.faq-body ol li{
  position:relative;padding-left:30px;margin-bottom:8px;
  counter-increment:step;
}
.faq-body ol li::before{
  content:counter(step);position:absolute;left:0;top:3px;
  width:20px;height:20px;border-radius:50%;
  border:1px solid var(--line);background:var(--paper-2);
  font-size:11.5px;font-weight:700;color:var(--brand);
  display:flex;align-items:center;justify-content:center;
  font-feature-settings:"tnum";
}

/* ---------- CTA ---------- */
.cta-card{
  background:var(--accent-soft);
  border:1px solid #E7D5C5;
  border-radius:16px;
  padding:46px;
  display:flex;align-items:center;justify-content:space-between;
  gap:36px;flex-wrap:wrap;
}
.cta-card h2{margin-bottom:12px;}
.cta-card p{color:#5B4B3E;font-size:15px;max-width:560px;}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px;}

/* ---------- Pager ---------- */
.pager-wrap{
  display:flex;align-items:center;justify-content:space-between;
  gap:24px;flex-wrap:wrap;
  padding-top:36px;border-top:1px solid var(--line);
}
.pager{display:flex;align-items:center;gap:10px;flex-wrap:wrap;}
.pager-label{font-size:13px;color:var(--ink-3);margin-right:6px;}
.pager a{
  width:36px;height:36px;border-radius:8px;
  border:1px solid var(--line);
  display:inline-flex;align-items:center;justify-content:center;
  font-size:14px;font-weight:600;color:var(--ink-2);
  font-feature-settings:"tnum";
  transition:background-color 180ms var(--ease),color 180ms var(--ease),border-color 180ms var(--ease);
}
.pager a:hover{background:var(--accent-soft);border-color:#DDD2C2;color:var(--ink);}
.pager a.is-current{background:var(--brand);border-color:var(--brand);color:#F5F1E8;}

/* ---------- Footer ---------- */
.site-footer{background:var(--dark);color:#C9D2CD;padding:72px 0 0;margin-top:0;}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:44px;}
.footer-brand .brand-main{color:#F3F0E9;}
.footer-brand .brand-sub{color:#8E9E98;}
.footer-note{font-size:13.5px;line-height:1.8;color:#94A39D;margin-top:16px;max-width:320px;}
.footer-meta{font-size:12.5px;color:#78877F;margin-top:12px;font-feature-settings:"tnum";}
.footer-title{font-size:12.5px;letter-spacing:.08em;color:#8E9E98;font-weight:700;margin-bottom:16px;}
.footer-links li{margin-bottom:11px;}
.footer-links a{
  font-size:15px;color:#D6DEDA;
  border-bottom:1px solid transparent;padding-bottom:1px;
}
.footer-links a:hover{color:#FFFFFF;border-bottom-color:#FFFFFF;}
.footer-qr{display:flex;gap:16px;align-items:flex-start;}
.qr{
  width:96px;height:96px;border-radius:12px;background:#FFFFFF;flex-shrink:0;
  background-image:radial-gradient(#16221E 1.4px,transparent 1.5px);
  background-size:8px 8px;background-position:4px 4px;
  border:4px solid #FFFFFF;
}
.footer-qr p{font-size:13px;color:#94A39D;line-height:1.75;max-width:200px;}
.footer-bottom{
  margin-top:52px;padding:22px 0;
  border-top:1px solid rgba(255,255,255,.1);
  display:flex;justify-content:space-between;gap:14px;flex-wrap:wrap;
  font-size:12.5px;color:#7F8F89;
}

/* ---------- Reveal ---------- */
.reveal{opacity:0;transform:translateY(14px);transition:opacity .4s var(--ease),transform .4s var(--ease);}
.reveal.is-in{opacity:1;transform:none;}

/* ---------- Responsive ---------- */
@media (max-width:1023px){
  .sec{padding:72px 0;}
  .hero{padding:20px 0 64px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:36px;}
  .flow-steps{grid-template-columns:repeat(2,minmax(0,1fr));}
  .hud{padding:34px;}
  .hud-metrics{grid-template-columns:repeat(2,minmax(0,1fr));}
  .cta-card{padding:36px;}
}

@media (max-width:767px){
  .brand-row{height:56px;gap:14px;}
  .brand-main{font-size:18px;}
  .brand-sub{font-size:10px;letter-spacing:.14em;}
  .brand-search{flex:0 0 auto;margin-left:auto;}
  .search-form{display:none;}
  .search-toggle{display:inline-flex;}
  .brand-search.is-open .search-form{
    display:flex;position:absolute;left:20px;right:20px;top:60px;
    max-width:none;z-index:90;box-shadow:var(--shadow-2);background:var(--paper-2);
  }
  .header-actions .link-quiet{display:none;}
  .channels{padding:8px 0 10px;}
  html{scroll-padding-top:120px;}
  .breadcrumb{padding-top:18px;}
  .cta-card{flex-direction:column;align-items:flex-start;}
  .pager-wrap{flex-direction:column;align-items:flex-start;gap:16px;}
}

@media (max-width:639px){
  .sec{padding:56px 0;}
  .hero-lead{font-size:16.5px;}
  .kpis{gap:20px;}
  .entry-grid{grid-template-columns:1fr;gap:18px;}
  .entry-card{padding:22px;}
  .flow-steps{grid-template-columns:1fr;}
  .hud{padding:26px;border-radius:14px;}
  .hud-metrics{grid-template-columns:1fr;}
  .compare{grid-template-columns:1fr;}
  .compare-col + .compare-col{border-left:0;border-top:1px solid rgba(255,255,255,.1);}
  .footer-grid{grid-template-columns:1fr;gap:32px;}
  .cta-card{padding:26px;}
  .faq-body{font-size:14.5px;}
}

@media (prefers-reduced-motion: reduce){
  html{scroll-behavior:auto;}
  *,*::before,*::after{animation-duration:.001ms !important;animation-iteration-count:1 !important;transition-duration:.001ms !important;}
  .reveal{opacity:1 !important;transform:none !important;}
}

/* roulang page: category4 */
:root{
  --paper:#F7F5F0;
  --paper-2:#FFFFFF;
  --ink:#14201C;
  --ink-2:#4A5751;
  --ink-3:#8A9490;
  --line:#E2DED4;
  --brand:#1C3B33;
  --brand-2:#2F5A4E;
  --mist:#8FB3A8;
  --accent:#C4602F;
  --accent-soft:#F2E3D8;
  --dark:#0F1A17;
  --r-card:14px;
  --r-btn:10px;
  --r-pill:999px;
  --shadow-1:0 1px 2px rgba(15,26,23,.06);
  --shadow-2:0 8px 24px -12px rgba(15,26,23,.16);
  --ease:cubic-bezier(.2,.7,.3,1);
  --t:180ms var(--ease);
}
*,*::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:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
  font-size:16px;
  line-height:1.8;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;height:auto}
a{color:inherit;text-decoration:none;transition:color var(--t),border-color var(--t),background-color var(--t)}
a:focus-visible,button:focus-visible,input:focus-visible{outline:2px solid var(--accent);outline-offset:2px;border-radius:6px}
button{font-family:inherit}
h1,h2,h3,h4,p,ul,ol,figure{margin:0}
ul,ol{padding:0;list-style:none}
.container{width:100%;max-width:1200px;margin:0 auto;padding-left:20px;padding-right:20px}
@media (min-width:1024px){.container{padding-left:32px;padding-right:32px}}

/* ---------- 头部 ---------- */
.site-header{
  position:sticky;top:0;z-index:80;
  background:rgba(247,245,240,.94);
  backdrop-filter:saturate(150%) blur(10px);
  border-bottom:1px solid var(--line);
}
.site-header .container{position:relative}
.brand-row{display:flex;align-items:center;gap:20px;height:68px}
.brand{display:inline-flex;align-items:baseline;gap:8px;flex:0 0 auto}
.brand-main{font-size:20px;font-weight:800;letter-spacing:-.01em;color:var(--ink);line-height:1}
.brand-sub{font-size:12px;letter-spacing:.08em;color:var(--ink-3);line-height:1}
.brand-search{flex:1 1 auto;max-width:340px;position:relative}
.search-form{
  display:flex;align-items:center;gap:10px;height:40px;padding:0 16px;
  background:var(--paper-2);border:1px solid var(--line);border-radius:var(--r-pill);
  transition:border-color var(--t),box-shadow var(--t);
}
.search-form:focus-within{border-color:var(--brand);box-shadow:0 0 0 2px var(--accent)}
.search-form i{font-size:14px;color:var(--ink-3)}
.search-form input{
  flex:1 1 auto;min-width:0;border:0;background:transparent;outline:none;
  font-size:14px;color:var(--ink);height:100%;
}
.search-form input::placeholder{color:var(--ink-3)}
.search-toggle{
  display:none;width:40px;height:40px;align-items:center;justify-content:center;
  background:var(--paper-2);border:1px solid var(--line);border-radius:var(--r-pill);
  color:var(--ink);cursor:pointer;transition:background-color var(--t),border-color var(--t);
}
.search-toggle:hover{background:var(--accent-soft);border-color:rgba(28,59,51,.28)}
.header-actions{margin-left:auto;display:flex;align-items:center;gap:16px;flex:0 0 auto}
.link-quiet{font-size:14px;color:var(--ink-2);border-bottom:1px solid transparent}
.link-quiet:hover{color:var(--ink);border-bottom-color:var(--accent)}
.channel-row{border-top:1px solid rgba(226,222,212,.7)}
.channels{display:flex;gap:8px;overflow-x:auto;padding:8px 0 12px;scrollbar-width:none;-webkit-overflow-scrolling:touch}
.channels::-webkit-scrollbar{display:none}
.chan{
  flex:0 0 auto;display:inline-flex;align-items:center;
  padding:8px 16px;border-radius:var(--r-pill);
  border:1px solid var(--line);background:transparent;
  font-size:14px;color:var(--ink-2);white-space:nowrap;
  transition:background-color var(--t),border-color var(--t),color var(--t);
}
.chan:hover{background:var(--accent-soft);border-color:rgba(28,59,51,.28);color:var(--ink)}
.chan.is-active{background:var(--brand);border-color:var(--brand);color:#F7F5F0}
.chan.is-active:hover{background:var(--brand-2);border-color:var(--brand-2);color:#F7F5F0}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:44px;padding:12px 26px;border-radius:var(--r-btn);
  font-size:15px;font-weight:600;line-height:1.2;cursor:pointer;
  border:1px solid transparent;
  transition:background-color var(--t),color var(--t),border-color var(--t),transform var(--t),box-shadow var(--t);
}
.btn:active{transform:scale(.985)}
.btn-primary{background:var(--brand);color:#F7F5F0;border-color:var(--brand)}
.btn-primary:hover{background:var(--brand-2);border-color:var(--brand-2);color:#F7F5F0}
.btn-ghost{background:transparent;color:var(--ink);border-color:var(--ink)}
.btn-ghost:hover{background:var(--ink);color:var(--paper)}
.btn-sm{min-height:40px;padding:9px 18px;font-size:14px}
.btn-light{background:#F7F5F0;color:var(--dark);border-color:#F7F5F0}
.btn-light:hover{background:#FFFFFF;border-color:#FFFFFF;color:var(--dark)}
.btn-outline-light{background:transparent;color:#F7F5F0;border-color:rgba(255,255,255,.32)}
.btn-outline-light:hover{background:#F7F5F0;color:var(--dark);border-color:#F7F5F0}

/* ---------- 通用板块 ---------- */
.section{padding:64px 0}
@media (min-width:768px){.section{padding:76px 0}}
@media (min-width:1024px){.section{padding:96px 0}}
.section-tight{padding:44px 0}
.section-head{max-width:740px;margin-bottom:32px}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;letter-spacing:.08em;color:var(--accent);
  text-transform:none;margin-bottom:14px;font-weight:600;
}
.eyebrow::before{content:"";width:18px;height:3px;background:var(--accent);border-radius:2px}
h2{font-size:26px;line-height:1.28;font-weight:700;letter-spacing:-.01em}
@media (min-width:768px){h2{font-size:30px}}
@media (min-width:1024px){h2{font-size:32px}}
.section-head p{margin-top:14px;color:var(--ink-2);font-size:16px;max-width:640px}
.divider{height:1px;background:var(--line);border:0;margin:0}

/* ---------- 内页 Hero ---------- */
.page-hero{padding:28px 0 52px;border-bottom:1px solid var(--line)}
@media (min-width:1024px){.page-hero{padding:36px 0 72px}}
.crumbs{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--ink-3);margin-bottom:24px}
.crumbs a{color:var(--ink-3)}
.crumbs a:hover{color:var(--brand)}
.crumbs .sep{color:var(--line)}
.crumbs .current{color:var(--ink-2)}
.page-hero h1{
  font-size:30px;line-height:1.2;font-weight:800;letter-spacing:-.02em;
  max-width:720px;margin:0 0 18px;
}
@media (min-width:768px){.page-hero h1{font-size:40px}}
@media (min-width:1200px){.page-hero h1{font-size:46px;line-height:1.14}}
.lede{font-size:16px;line-height:1.85;color:var(--ink-2);max-width:620px}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:26px}
.hero-figure{
  margin-top:32px;border-radius:var(--r-card);overflow:hidden;
  border:1px solid var(--line);background:var(--paper);
  box-shadow:var(--shadow-1);position:relative;
}
.hero-figure img{width:100%;aspect-ratio:16/10;object-fit:cover}
@media (max-width:767px){.hero-figure img{aspect-ratio:4/3}}
.hero-figure figcaption{
  position:absolute;left:14px;bottom:14px;
  background:rgba(247,245,240,.92);border:1px solid var(--line);
  border-radius:var(--r-pill);padding:5px 12px;font-size:12px;color:var(--ink-2);
}
.hero-metrics{
  display:flex;flex-wrap:wrap;gap:20px 36px;margin-top:30px;padding-top:22px;
  border-top:1px solid var(--line);
}
.metric{min-width:110px}
.metric-num{font-size:22px;font-weight:800;letter-spacing:-.01em;font-feature-settings:"tnum";line-height:1.2}
.metric-label{font-size:13px;color:var(--ink-3);margin-top:2px}

/* ---------- 图例 ---------- */
.legend{
  display:flex;align-items:flex-start;gap:10px;
  font-size:13px;line-height:1.7;color:var(--ink-3);
  padding:14px 18px;border:1px dashed var(--line);border-radius:var(--r-card);
  background:rgba(255,255,255,.5);margin-bottom:28px;
}
.legend i{color:var(--accent);font-size:13px;margin-top:4px}

/* ---------- 规格卡 ---------- */
.spec-card{
  height:100%;background:var(--paper-2);border:1px solid var(--line);
  border-radius:var(--r-card);padding:24px;box-shadow:var(--shadow-1);
  transition:box-shadow var(--t),border-color var(--t),transform var(--t);
}
.spec-card:hover{box-shadow:var(--shadow-2);border-color:rgba(28,59,51,.28);transform:translateY(-3px)}
.spec-card-head{display:flex;align-items:center;gap:12px;margin-bottom:6px}
.spec-icon{
  width:40px;height:40px;border-radius:12px;flex:0 0 auto;
  display:inline-flex;align-items:center;justify-content:center;
  border:1px solid var(--line);background:var(--paper);color:var(--brand);font-size:16px;
}
.spec-card h3{font-size:19px;font-weight:700;line-height:1.3}
.spec-card-sub{font-size:13px;color:var(--ink-3);margin-left:52px;margin-bottom:18px}
.spec-group-title{
  font-size:13px;letter-spacing:.08em;color:var(--ink-3);
  margin:18px 0 6px;font-weight:600;
}
.spec-group-title:first-of-type{margin-top:0}
.spec-row{
  display:flex;align-items:baseline;justify-content:space-between;gap:16px;
  padding:11px 0;border-bottom:1px dashed var(--line);font-size:15px;
}
.spec-row:last-child{border-bottom:0;padding-bottom:0}
.spec-key{color:var(--ink-2);flex:0 0 auto}
.spec-val{
  color:var(--ink);font-weight:600;text-align:right;
  font-feature-settings:"tnum";font-variant-numeric:tabular-nums;
}
.spec-val small{display:block;font-size:12px;font-weight:400;color:var(--ink-3)}

/* ---------- 浏览器对照 ---------- */
.matrix{
  border:1px solid var(--line);border-radius:var(--r-card);
  background:var(--paper-2);overflow:hidden;box-shadow:var(--shadow-1);
}
.matrix-head{
  display:none;grid-template-columns:1.2fr 1.3fr .9fr;
  gap:16px;padding:14px 22px;background:var(--paper);
  font-size:13px;letter-spacing:.06em;color:var(--ink-3);
  border-bottom:1px solid var(--line);
}
.matrix-row{
  display:grid;grid-template-columns:1fr;gap:6px;
  padding:16px 20px;border-bottom:1px solid var(--line);
  transition:background-color var(--t);
}
.matrix-row:last-child{border-bottom:0}
.matrix-row:hover{background:var(--paper)}
.matrix-name{font-size:15px;font-weight:600;display:flex;align-items:center;gap:10px}
.matrix-name i{color:var(--ink-3);font-size:16px;width:18px;text-align:center}
.matrix-ver{font-size:14px;color:var(--ink-2);font-feature-settings:"tnum"}
.matrix-state{justify-self:start}
@media (min-width:768px){
  .matrix-head{display:grid}
  .matrix-row{grid-template-columns:1.2fr 1.3fr .9fr;align-items:center;gap:16px;padding:16px 22px}
  .matrix-state{justify-self:end}
}
.badge{
  display:inline-flex;align-items:center;gap:6px;
  padding:4px 12px;border-radius:var(--r-pill);
  border:1px solid var(--line);background:transparent;
  font-size:13px;font-weight:500;line-height:1.6;white-space:nowrap;
}
.badge-ok{background:rgba(143,179,168,.20);border-color:rgba(143,179,168,.55);color:#1C3B33}
.badge-note{background:var(--accent-soft);border-color:rgba(196,96,47,.30);color:#8A3B18}
.badge-plain{color:var(--ink-2)}

/* ---------- 性能卡 ---------- */
.panel{
  background:var(--paper-2);border:1px solid var(--line);border-radius:var(--r-card);
  padding:24px;box-shadow:var(--shadow-1);height:100%;
  transition:box-shadow var(--t),border-color var(--t);
}
.panel:hover{box-shadow:var(--shadow-2);border-color:rgba(28,59,51,.28)}
.panel h3{font-size:18px;font-weight:700;margin-bottom:10px;display:flex;align-items:center;gap:10px}
.panel h3 .idx{
  font-size:13px;font-weight:700;color:var(--accent);
  font-feature-settings:"tnum";letter-spacing:.04em;
}
.panel p{font-size:15px;line-height:1.8;color:var(--ink-2)}
.panel .meter{
  margin-top:18px;display:flex;flex-direction:column;gap:12px;
}
.meter-row{display:flex;align-items:center;justify-content:space-between;gap:14px;font-size:14px}
.meter-row .k{color:var(--ink-2)}
.meter-row .v{font-weight:700;font-feature-settings:"tnum"}
.meter-bar{height:6px;border-radius:999px;background:var(--paper);border:1px solid var(--line);overflow:hidden}
.meter-fill{height:100%;background:var(--mist);border-radius:999px}
.meter-fill.warn{background:var(--accent);opacity:.8}
.panel-list{margin-top:14px;display:flex;flex-direction:column;gap:10px}
.panel-list li{font-size:14px;line-height:1.7;color:var(--ink-2);padding-left:18px;position:relative}
.panel-list li::before{content:"";position:absolute;left:0;top:11px;width:6px;height:6px;border-radius:50%;background:var(--mist)}

/* ---------- 自检清单 ---------- */
.check-wrap{
  background:var(--paper-2);border:1px solid var(--line);border-radius:var(--r-card);
  padding:28px;box-shadow:var(--shadow-1);
}
.check-list{display:grid;grid-template-columns:1fr;gap:14px}
@media (min-width:768px){.check-list{grid-template-columns:1fr 1fr;gap:16px 28px}}
.check-item{
  display:flex;align-items:flex-start;gap:12px;
  padding:14px 16px;border:1px solid var(--line);border-radius:12px;
  background:var(--paper);transition:border-color var(--t),transform var(--t);
}
.check-item:hover{border-color:rgba(28,59,51,.28);transform:translateY(-2px)}
.check-item i{color:var(--brand);font-size:15px;margin-top:4px}
.check-item strong{display:block;font-size:15px;font-weight:600;margin-bottom:2px}
.check-item span{font-size:13.5px;color:var(--ink-2);line-height:1.7}

/* ---------- FAQ ---------- */
.faq{border-top:1px solid var(--line);margin-top:8px}
.faq-item{border-bottom:1px solid var(--line)}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:18px;
  background:none;border:0;padding:22px 0;cursor:pointer;text-align:left;
  font-size:17px;font-weight:600;color:var(--ink);line-height:1.5;
  transition:color var(--t);
}
.faq-q:hover{color:var(--brand-2)}
.faq-icon{position:relative;width:18px;height:18px;flex:0 0 auto;transition:transform 200ms var(--ease)}
.faq-icon::before,.faq-icon::after{
  content:"";position:absolute;background:var(--ink);border-radius:2px;
}
.faq-icon::before{left:0;top:8px;width:18px;height:2px}
.faq-icon::after{left:8px;top:0;width:2px;height:18px}
.faq-item.is-open .faq-icon{transform:rotate(45deg)}
.faq-panel{max-height:0;overflow:hidden;transition:max-height 220ms var(--ease)}
.faq-item.is-open .faq-panel{max-height:480px}
.faq-panel .inner{padding:0 0 22px;max-width:740px}
.faq-panel p{font-size:15px;line-height:1.8;color:var(--ink-2)}
.faq-panel p + p{margin-top:10px}
.faq-panel ol{margin-top:10px;counter-reset:faqstep}
.faq-panel ol li{
  counter-increment:faqstep;position:relative;padding-left:26px;
  font-size:14.5px;line-height:1.8;color:var(--ink-2);margin-bottom:6px;
}
.faq-panel ol li::before{
  content:counter(faqstep);position:absolute;left:0;top:2px;
  width:18px;height:18px;border-radius:50%;border:1px solid var(--line);
  font-size:11px;line-height:16px;text-align:center;color:var(--ink-3);
}

/* ---------- CTA ---------- */
.cta-section{padding:0 0 8px}
.cta-dark{
  background:var(--dark);color:#F7F5F0;border-radius:20px;
  padding:40px 28px;position:relative;overflow:hidden;
  border:1px solid rgba(255,255,255,.08);
}
@media (min-width:1024px){.cta-dark{padding:56px 48px}}
.cta-dark h2{color:#F7F5F0;max-width:520px}
.cta-dark p{color:#B9C6C0;margin-top:14px;max-width:520px;font-size:15.5px;line-height:1.8}
.cta-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:26px}
.cta-side{
  margin-top:32px;border-top:1px solid rgba(255,255,255,.14);padding-top:22px;
  display:grid;grid-template-columns:1fr;gap:14px;
}
@media (min-width:768px){.cta-side{grid-template-columns:1fr 1fr;gap:22px}}
.cta-side div{font-size:14px;color:#B9C6C0;line-height:1.7}
.cta-side strong{display:block;color:#F7F5F0;font-size:15px;margin-bottom:4px;font-weight:600}

/* ---------- 页脚 ---------- */
.site-footer{
  background:var(--dark);color:#C9D3CE;
  padding:56px 0 24px;margin-top:72px;
}
@media (min-width:1024px){.site-footer{margin-top:96px}}
.footer-grid{display:grid;grid-template-columns:1fr;gap:34px}
@media (min-width:640px){.footer-grid{grid-template-columns:1fr 1fr}}
@media (min-width:1024px){.footer-grid{grid-template-columns:1.6fr 1fr 1fr 1.3fr;gap:32px}}
.footer-brand .brand-main{color:#F7F5F0;font-size:20px}
.footer-brand .brand-sub{color:#8A9490}
.footer-note{font-size:14px;line-height:1.8;color:#B9C6C0;margin-top:14px;max-width:340px}
.footer-meta{font-size:13px;color:#8A9490;margin-top:12px;font-feature-settings:"tnum"}
.footer-title{
  font-size:13px;letter-spacing:.08em;color:#8A9490;
  margin-bottom:16px;font-weight:600;
}
.footer-links{display:flex;flex-direction:column;gap:10px}
.footer-links a{
  font-size:15px;color:#C9D3CE;
  border-bottom:2px solid transparent;padding-bottom:1px;
  transition:color var(--t),border-color var(--t);
}
.footer-links a:hover{color:#F7F5F0;border-bottom-color:var(--accent)}
.footer-qr{display:flex;align-items:center;gap:16px}
.footer-qr p{font-size:13.5px;line-height:1.75;color:#B9C6C0;max-width:190px}
.qr{
  position:relative;width:96px;height:96px;flex:0 0 auto;
  background:#FFFFFF;border-radius:12px;border:1px solid rgba(255,255,255,.14);overflow:hidden;
}
.qr::before{
  content:"";position:absolute;inset:12px;border-radius:4px;
  background-image:radial-gradient(#14201C 2px,transparent 2px);
  background-size:10px 10px;opacity:.55;
}
.qr::after{
  content:"";position:absolute;left:12px;top:12px;width:22px;height:22px;
  border:3px solid #14201C;border-radius:3px;background:#fff;
}
.footer-bottom{
  display:flex;flex-wrap:wrap;gap:10px 24px;justify-content:space-between;
  margin-top:40px;padding-top:20px;
  border-top:1px solid rgba(255,255,255,.12);
  font-size:13px;color:#8A9490;line-height:1.7;
}
.footer-bottom a{color:#8A9490}
.footer-bottom a:hover{color:#F7F5F0}

/* ---------- 响应式：头部 ---------- */
@media (max-width:900px){
  .brand-sub{display:none}
}
@media (max-width:767px){
  .brand-row{height:56px;gap:12px}
  .brand-search{position:static;flex:0 0 auto;margin-left:auto}
  .search-form{display:none}
  .search-toggle{display:inline-flex}
  .brand-search.is-open .search-form{
    display:flex;position:absolute;left:20px;right:20px;top:calc(100% - 4px);
    z-index:90;box-shadow:var(--shadow-2);background:var(--paper-2);
  }
  .header-actions{gap:10px}
  .link-quiet{display:none}
  .channels{padding:6px 0 10px}
  .chan{padding:7px 14px;font-size:13.5px}
  .page-hero{padding-top:22px}
  .spec-card,.panel,.check-wrap{padding:20px}
  .cta-dark{padding:32px 20px}
}
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  *,*::before,*::after{
    animation-duration:.001ms !important;
    animation-iteration-count:1 !important;
    transition-duration:.001ms !important;
    scroll-behavior:auto !important;
  }
}

/* roulang page: category5 */
:root{
  --paper:#F7F5F0;
  --paper-2:#FFFFFF;
  --ink:#14201C;
  --ink-2:#4A5751;
  --ink-3:#8A9490;
  --line:#E2DED4;
  --brand:#1C3B33;
  --brand-2:#2F5A4E;
  --mist:#8FB3A8;
  --accent:#C4602F;
  --accent-soft:#F2E3D8;
  --dark:#0F1A17;
  --radius-card:14px;
  --radius-btn:10px;
  --shadow-1:0 1px 2px rgba(15,26,23,.06);
  --shadow-2:0 8px 24px -12px rgba(15,26,23,.16);
  --t:180ms cubic-bezier(.2,.7,.3,1);
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;scroll-padding-top:150px}
body{
  margin:0;
  background:var(--paper);
  color:var(--ink);
  font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,sans-serif;
  font-size:16px;
  line-height:1.8;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{max-width:100%;display:block;height:auto}
a{color:var(--brand);text-decoration:none;transition:color var(--t),background var(--t),border-color var(--t)}
button{font:inherit;color:inherit}
h1,h2,h3,h4,p,ul,ol,figure{margin:0}
ul,ol{padding-left:1.2em}
:where(a,button,input,summary):focus-visible{outline:2px solid var(--accent);outline-offset:2px;border-radius:6px}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 20px}
@media (min-width:1024px){.container{padding:0 32px}}
.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}

/* ============ 头部 ============ */
.site-header{
  position:sticky;top:0;z-index:90;
  background:var(--paper);
  border-bottom:1px solid var(--line);
}
.brand-row{display:flex;align-items:center;gap:20px;height:68px}
.brand{display:inline-flex;align-items:baseline;gap:8px;text-decoration:none;flex:0 0 auto}
.brand-main{font-size:20px;font-weight:800;letter-spacing:-.01em;color:var(--ink);line-height:1}
.brand-sub{font-size:12px;letter-spacing:.14em;color:var(--ink-3);font-weight:500;line-height:1}
.brand-search{flex:1 1 auto;display:flex;justify-content:center;position:relative}
.search-form{
  display:flex;align-items:center;gap:10px;
  width:100%;max-width:340px;
  padding:9px 18px;
  background:var(--paper-2);
  border:1px solid var(--line);
  border-radius:999px;
  transition:border-color var(--t),box-shadow var(--t);
}
.search-form i{font-size:14px;color:var(--ink-3)}
.search-form input{
  flex:1 1 auto;border:0;outline:0;background:transparent;
  font-size:14px;color:var(--ink);min-width:0;
}
.search-form input::placeholder{color:var(--ink-3)}
.search-form:focus-within{border-color:var(--brand);box-shadow:0 0 0 3px rgba(196,96,47,.22)}
.search-toggle{
  display:none;align-items:center;justify-content:center;
  width:44px;height:44px;border-radius:999px;
  border:1px solid var(--line);background:var(--paper-2);
  color:var(--ink-2);cursor:pointer;
}
.header-actions{display:flex;align-items:center;gap:18px;flex:0 0 auto}
.link-quiet{font-size:14px;color:var(--ink-2);font-weight:500}
.link-quiet:hover{color:var(--brand)}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  border-radius:var(--radius-btn);
  border:1px solid transparent;
  padding:13px 24px;
  font-size:15px;font-weight:600;line-height:1;letter-spacing:.01em;
  cursor:pointer;text-align:center;
  min-height:44px;
  transition:background var(--t),color var(--t),border-color var(--t),transform var(--t),box-shadow var(--t);
}
.btn:active{transform:scale(.985)}
.btn-primary{background:var(--brand);border-color:var(--brand);color:#F7F5F0}
.btn-primary:hover{background:var(--brand-2);border-color:var(--brand-2);color:#FFFFFF}
.btn-sm{padding:10px 18px;font-size:14px;min-height:40px}
.btn-ghost{background:transparent;border-color:var(--ink);color:var(--ink)}
.btn-ghost:hover{background:rgba(20,32,28,.06);border-color:var(--brand);color:var(--brand)}
.btn-light{background:#F7F5F0;border-color:#F7F5F0;color:var(--dark)}
.btn-light:hover{background:#FFFFFF;border-color:#FFFFFF;color:var(--dark)}
.btn-outline-light{background:transparent;border-color:rgba(255,255,255,.42);color:#F2EFE7}
.btn-outline-light:hover{background:rgba(255,255,255,.12);border-color:rgba(255,255,255,.7);color:#FFFFFF}

/* 频道行 */
.channel-row{border-top:1px solid var(--line);padding:6px 0}
.channels{display:flex;gap:8px;overflow-x:auto;padding:3px 0;scrollbar-width:none}
.channels::-webkit-scrollbar{display:none}
.chan{
  flex:0 0 auto;
  padding:8px 17px;
  border-radius:999px;
  border:1px solid var(--line);
  color:var(--ink-2);
  font-size:14px;font-weight:500;white-space:nowrap;
  transition:background var(--t),color var(--t),border-color var(--t);
}
.chan:hover{background:var(--accent-soft);color:var(--ink);border-color:rgba(28,59,51,.26)}
.chan.is-active{background:var(--brand);border-color:var(--brand);color:#F7F5F0}

/* ============ 页面首屏 ============ */
.cat-hero{
  position:relative;
  padding:30px 0 54px;
  border-bottom:1px solid var(--line);
  background:
    linear-gradient(104deg,rgba(247,245,240,.97) 0%,rgba(247,245,240,.94) 46%,rgba(247,245,240,.70) 100%),
    url('/assets/images/backpic/back-3.webp') center right / cover no-repeat;
}
.crumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--ink-3);margin-bottom:24px}
.crumb a{color:var(--ink-2)}
.crumb a:hover{color:var(--brand)}
.crumb .sep{color:var(--ink-3);opacity:.7}
.crumb .cur{color:var(--ink-2);font-weight:500}
.cat-hero h1{
  font-size:clamp(30px,4.4vw,50px);
  line-height:1.15;
  letter-spacing:-.02em;
  font-weight:800;
  max-width:860px;
}
.cat-hero h1 .kw{color:var(--brand)}
.hero-lead{margin-top:18px;font-size:16px;line-height:1.85;color:var(--ink-2);max-width:660px}
.hero-stats{display:flex;flex-wrap:wrap;gap:12px;margin-top:32px}
.stat{
  background:var(--paper-2);
  border:1px solid var(--line);
  border-radius:12px;
  padding:13px 20px;
  box-shadow:var(--shadow-1);
  min-width:158px;
}
.stat b{
  display:block;font-size:22px;font-weight:800;letter-spacing:-.01em;line-height:1.3;
  font-variant-numeric:tabular-nums;font-feature-settings:"tnum";
}
.stat span{font-size:13px;color:var(--ink-3)}

/* ============ 主体 ============ */
.cat-body{padding:56px 0 72px}
@media (min-width:1024px){.cat-body{padding:76px 0 100px}}

.filter-bar{
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;
  gap:14px;margin-bottom:24px;
}
.filter-pills{display:flex;gap:8px;overflow-x:auto;padding:3px 0;scrollbar-width:none}
.filter-pills::-webkit-scrollbar{display:none}
.pill{
  flex:0 0 auto;
  border:1px solid var(--line);
  background:var(--paper-2);
  color:var(--ink-2);
  border-radius:999px;
  padding:9px 18px;
  font-size:14px;font-weight:500;
  cursor:pointer;white-space:nowrap;
  min-height:42px;
  transition:background var(--t),color var(--t),border-color var(--t);
}
.pill:hover{border-color:rgba(28,59,51,.3);color:var(--ink);background:var(--accent-soft)}
.pill.is-active{background:var(--brand);border-color:var(--brand);color:#F7F5F0}
.filter-count{font-size:13px;color:var(--ink-3);font-variant-numeric:tabular-nums;font-feature-settings:"tnum"}

.faq-list{border-top:1px solid var(--line)}
.faq-item{border-bottom:1px solid var(--line)}
.faq-head{margin:0;font-size:inherit;font-weight:inherit;line-height:inherit}
.faq-q{
  display:flex;align-items:flex-start;gap:16px;
  width:100%;
  padding:22px 6px 22px 0;
  background:transparent;border:0;
  text-align:left;cursor:pointer;
}
.faq-idx{
  flex:0 0 auto;width:28px;padding-top:2px;
  font-size:13px;font-weight:700;letter-spacing:.06em;
  color:var(--accent);
  font-variant-numeric:tabular-nums;font-feature-settings:"tnum";
}
.faq-title{flex:1 1 auto;font-size:17px;font-weight:600;line-height:1.6;color:var(--ink);transition:color var(--t)}
.faq-q:hover .faq-title{color:var(--brand-2)}
.faq-icon{
  flex:0 0 auto;position:relative;width:22px;height:22px;margin-top:3px;
  transition:transform 220ms cubic-bezier(.2,.7,.3,1);
}
.faq-icon::before,.faq-icon::after{
  content:"";position:absolute;background:var(--ink-2);border-radius:2px;
  transition:background var(--t);
}
.faq-icon::before{left:2px;right:2px;top:10px;height:2px}
.faq-icon::after{top:2px;bottom:2px;left:10px;width:2px}
.faq-q[aria-expanded="true"] .faq-icon{transform:rotate(45deg)}
.faq-q[aria-expanded="true"] .faq-icon::before,
.faq-q[aria-expanded="true"] .faq-icon::after{background:var(--brand)}
.faq-a{max-height:0;overflow:hidden;transition:max-height 240ms cubic-bezier(.2,.7,.3,1)}
.faq-a-inner{
  padding:0 8px 28px 44px;
  max-width:740px;
  font-size:15px;line-height:1.85;color:var(--ink-2);
}
.faq-a-inner p + p{margin-top:12px}
.step-list{list-style:none;margin:14px 0 0;padding:0;counter-reset:step}
.step-list li{position:relative;padding-left:32px;margin-bottom:10px;line-height:1.8}
.step-list li:last-child{margin-bottom:0}
.step-list li::before{
  counter-increment:step;content:counter(step);
  position:absolute;left:0;top:3px;
  width:21px;height:21px;border-radius:50%;
  display:flex;align-items:center;justify-content:center;
  border:1px solid var(--line);background:var(--paper-2);
  color:var(--brand);font-size:12px;font-weight:700;
  font-variant-numeric:tabular-nums;
}
.faq-tip{
  margin-top:16px;padding-left:14px;
  border-left:3px solid var(--mist);
  font-size:14px;color:var(--ink-3);line-height:1.8;
}
.faq-empty{
  display:none;
  border:1px dashed var(--line);
  border-radius:var(--radius-card);
  min-height:180px;
  align-items:center;justify-content:center;
  text-align:center;padding:32px;
  font-size:14px;color:var(--ink-3);
}
.faq-empty.is-show{display:flex}

/* 排查三步 */
.triage{margin-top:76px;padding-top:56px;border-top:1px solid var(--line)}
.section-eyebrow{
  font-size:13px;font-weight:700;letter-spacing:.16em;
  color:var(--accent);margin-bottom:12px;
}
.section-title{font-size:clamp(23px,3vw,32px);font-weight:700;letter-spacing:-.01em;line-height:1.3}
.section-lead{margin-top:12px;font-size:15px;color:var(--ink-2);max-width:640px;line-height:1.85}
.triage-grid{margin-top:32px;row-gap:24px}
.triage-card{
  background:var(--paper-2);
  border:1px solid var(--line);
  border-radius:var(--radius-card);
  padding:24px;
  height:100%;
  box-shadow:var(--shadow-1);
  transition:transform var(--t),box-shadow var(--t),border-color var(--t);
}
.triage-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-2);border-color:rgba(28,59,51,.28)}
.triage-num{
  font-size:13px;font-weight:700;letter-spacing:.1em;color:var(--accent);
  font-variant-numeric:tabular-nums;
}
.triage-card h3{margin-top:10px;font-size:19px;font-weight:600;line-height:1.45}
.triage-card p{margin-top:10px;font-size:15px;line-height:1.8;color:var(--ink-2)}
.triage-link{
  display:inline-block;margin-top:14px;font-size:14px;font-weight:600;
  color:var(--brand);text-decoration:underline;text-underline-offset:4px;
  text-decoration-color:var(--line);transition:text-decoration-color var(--t);
}
.triage-link:hover{text-decoration-color:var(--accent)}

/* 深色 CTA */
.cta-dark{background:var(--dark);color:#EDEAE2;padding:64px 0}
.cta-dark-inner{display:flex;flex-wrap:wrap;gap:32px;align-items:center;justify-content:space-between}
.cta-copy{flex:1 1 420px;min-width:0}
.cta-copy .tag-line{
  display:inline-flex;align-items:center;gap:8px;
  font-size:12px;font-weight:700;letter-spacing:.14em;
  color:#D9C3B2;
  padding:5px 12px;border:1px solid rgba(255,255,255,.2);border-radius:999px;
  margin-bottom:16px;
}
.cta-dark h2{font-size:clamp(22px,2.8vw,30px);font-weight:700;line-height:1.32;color:#F7F5F0;max-width:560px}
.cta-dark p{margin-top:14px;font-size:15px;line-height:1.85;color:rgba(247,245,240,.72);max-width:560px}
.cta-actions{display:flex;flex-wrap:wrap;gap:12px;flex:0 0 auto}

/* 分页 */
.pager-wrap{
  margin-top:64px;
  display:flex;flex-direction:column;align-items:center;gap:20px;
}
.pager{display:flex;gap:8px;flex-wrap:wrap;justify-content:center}
.pager a,.pager span{
  width:36px;height:36px;
  display:inline-flex;align-items:center;justify-content:center;
  border:1px solid var(--line);border-radius:8px;
  background:var(--paper-2);
  font-size:14px;font-weight:600;color:var(--ink-2);
  font-variant-numeric:tabular-nums;font-feature-settings:"tnum";
  transition:background var(--t),color var(--t),border-color var(--t),transform var(--t);
}
.pager a:hover{background:var(--accent-soft);border-color:rgba(28,59,51,.28);color:var(--ink);transform:translateY(-2px)}
.pager .is-current{background:var(--brand);border-color:var(--brand);color:#F7F5F0}
.back-home{
  font-size:14px;font-weight:600;color:var(--brand);
  text-decoration:underline;text-underline-offset:4px;text-decoration-color:var(--line);
  transition:text-decoration-color var(--t);
}
.back-home:hover{text-decoration-color:var(--accent)}

/* ============ 页脚 ============ */
.site-footer{background:var(--dark);color:rgba(247,245,240,.72);padding:64px 0 28px}
.footer-grid{display:grid;grid-template-columns:1.45fr 1fr 1fr 1.15fr;gap:40px}
.footer-brand .brand-main{color:#F7F5F0}
.footer-brand .brand-sub{color:rgba(247,245,240,.5)}
.footer-note{margin-top:16px;font-size:14px;line-height:1.85;max-width:330px;color:rgba(247,245,240,.66)}
.footer-meta{margin-top:12px;font-size:13px;color:rgba(247,245,240,.48);font-variant-numeric:tabular-nums}
.footer-title{font-size:13px;font-weight:700;letter-spacing:.08em;color:rgba(247,245,240,.5);margin-bottom:16px}
.footer-links{list-style:none;margin:0;padding:0;display:grid;gap:11px}
.footer-links a{
  font-size:15px;color:rgba(247,245,240,.78);
  transition:color var(--t),text-decoration-color var(--t);
}
.footer-links a:hover{
  color:#F7F5F0;text-decoration:underline;
  text-underline-offset:4px;text-decoration-thickness:2px;text-decoration-color:var(--accent);
}
.footer-qr{display:flex;gap:14px;align-items:flex-start}
.qr{
  position:relative;width:96px;height:96px;flex:0 0 auto;
  border-radius:12px;background:#F7F5F0;
  box-shadow:0 0 0 1px rgba(255,255,255,.16);
}
.qr::before{
  content:"";position:absolute;inset:12px;border-radius:4px;
  background-image:
    linear-gradient(90deg,#0F1A17 25%,transparent 25%,transparent 50%,#0F1A17 50%,#0F1A17 75%,transparent 75%),
    linear-gradient(#0F1A17 25%,transparent 25%,transparent 50%,#0F1A17 50%,#0F1A17 75%,transparent 75%);
  background-size:22px 22px;
  opacity:.82;
}
.footer-qr p{font-size:13px;line-height:1.75;color:rgba(247,245,240,.6)}
.footer-bottom{
  margin-top:48px;padding-top:20px;
  border-top:1px solid rgba(255,255,255,.12);
  display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;
  font-size:13px;color:rgba(247,245,240,.5);
}

/* ============ 响应式 ============ */
@media (max-width:1023px){
  .footer-grid{grid-template-columns:1fr 1fr;gap:36px}
  .triage{padding-top:48px;margin-top:60px}
}
@media (max-width:767px){
  .brand-row{height:60px;gap:12px}
  .brand-main{font-size:18px}
  .brand-sub{font-size:11px;letter-spacing:.1em}
  .brand-search{justify-content:flex-end}
  .search-form{display:none}
  .search-toggle{display:inline-flex}
  .brand-search.is-open .search-form{
    display:flex;
    position:absolute;right:0;top:calc(100% + 12px);
    width:min(320px,84vw);max-width:none;
    box-shadow:var(--shadow-2);
    z-index:120;
  }
  .header-actions .link-quiet{display:none}
  .cat-hero{padding:24px 0 44px}
  .hero-lead{font-size:15.5px}
  .hero-stats{gap:10px}
  .stat{flex:1 1 0;min-width:130px;padding:11px 14px}
  .stat b{font-size:19px}
  .faq-a-inner{padding-left:0}
  .faq-title{font-size:16px}
  .faq-idx{width:24px}
  .cta-dark{padding:52px 0}
  .cta-actions{width:100%}
  .cta-actions .btn{flex:1 1 auto}
  .pager-wrap{margin-top:48px}
}
@media (max-width:519px){
  .cat-body{padding:44px 0 60px}
  .filter-bar{gap:10px}
  .faq-q{padding:20px 0;gap:12px}
  .footer-grid{grid-template-columns:1fr;gap:32px}
  .footer-bottom{flex-direction:column;gap:8px}
  .pager a,.pager span{width:34px;height:34px;font-size:13px}
}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{
    animation-duration:.001ms !important;
    animation-iteration-count:1 !important;
    transition-duration:.001ms !important;
    scroll-behavior:auto !important;
  }
}

/* roulang page: category6 */
:root{
  --paper:#F7F5F0;
  --paper-2:#FFFFFF;
  --ink:#14201C;
  --ink-2:#4A5751;
  --ink-3:#8A9490;
  --line:#E2DED4;
  --brand:#1C3B33;
  --brand-2:#2F5A4E;
  --mist:#8FB3A8;
  --accent:#C4602F;
  --accent-soft:#F2E3D8;
  --dark:#0F1A17;
  --shadow-1:0 1px 2px rgba(15,26,23,.06);
  --shadow-2:0 8px 24px -12px rgba(15,26,23,.16);
  --radius:14px;
  --ease:cubic-bezier(.2,.7,.3,1);
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  background:var(--paper);
  color:var(--ink);
  font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,sans-serif;
  font-size:16px;
  line-height:1.8;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border-radius:var(--radius)}
a{color:var(--brand);text-decoration:none;transition:color 180ms var(--ease),background-color 180ms var(--ease),border-color 180ms var(--ease)}
a:hover{color:var(--brand-2)}
h1,h2,h3,h4,p,ul,ol,figure{margin:0}
ul,ol{padding-left:1.2em}
button{font:inherit;cursor:pointer}
input{font:inherit}
a:focus-visible,button:focus-visible,summary:focus-visible,input:focus-visible{
  outline:2px solid var(--accent);
  outline-offset:2px;
  border-radius:6px;
}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 20px}
@media(min-width:1024px){.container{padding:0 32px}}

/* ---------- 头部 ---------- */
.site-header{background:var(--paper);border-bottom:1px solid var(--line);position:relative;z-index:60}
.brand-row{display:flex;align-items:center;gap:24px;height:68px}
.brand{display:flex;align-items:baseline;gap:8px;color:var(--ink);flex:0 0 auto}
.brand:hover{color:var(--ink)}
.brand-main{font-size:22px;font-weight:800;letter-spacing:-.01em;line-height:1}
.brand-sub{font-size:12px;color:var(--ink-3);letter-spacing:.14em;border-left:1px solid var(--line);padding-left:9px;line-height:1.2}
.brand-search{position:relative;flex:1 1 auto;max-width:360px}
.search-form{
  display:flex;align-items:center;gap:10px;
  border:1px solid var(--line);border-radius:999px;
  padding:8px 16px;background:var(--paper-2);
  transition:border-color 180ms var(--ease),box-shadow 180ms var(--ease);
}
.search-form:focus-within{border-color:var(--brand);box-shadow:0 0 0 2px var(--accent)}
.search-form i{color:var(--ink-3);font-size:14px}
.search-form input{border:0;outline:none;background:transparent;width:100%;font-size:14px;color:var(--ink);padding:0}
.search-form input::placeholder{color:var(--ink-3)}
.search-toggle{
  display:none;align-items:center;justify-content:center;
  width:40px;height:40px;border-radius:999px;border:1px solid var(--line);
  background:var(--paper-2);color:var(--ink-2);
  transition:background-color 180ms var(--ease),color 180ms var(--ease);
}
.search-toggle:hover{background:var(--accent-soft);color:var(--ink)}
.header-actions{margin-left:auto;display:flex;align-items:center;gap:16px}
.link-quiet{font-size:14px;color:var(--ink-2)}
.link-quiet:hover{color:var(--brand);text-decoration:underline;text-underline-offset:4px;text-decoration-color:var(--accent)}

.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  border-radius:10px;padding:14px 26px;font-size:15px;font-weight:600;
  border:1px solid transparent;line-height:1.2;
  transition:background-color 180ms var(--ease),color 180ms var(--ease),border-color 180ms var(--ease),transform 120ms var(--ease),box-shadow 180ms var(--ease);
}
.btn:active{transform:scale(.985)}
.btn-primary{background:var(--brand);color:#F7F5F0;border-color:var(--brand)}
.btn-primary:hover{background:var(--brand-2);border-color:var(--brand-2);color:#FFFFFF}
.btn-ghost{background:transparent;border-color:var(--ink);color:var(--ink)}
.btn-ghost:hover{background:var(--accent-soft);border-color:var(--brand);color:var(--ink)}
.btn-sm{padding:10px 18px;font-size:14px;border-radius:10px}
.btn-block{width:100%}

.channel-row{
  position:sticky;top:0;z-index:50;
  background:var(--paper);
  border-top:1px solid var(--line);
  border-bottom:1px solid var(--line);
}
.channels{display:flex;gap:10px;overflow-x:auto;padding:10px 0;scrollbar-width:none;-ms-overflow-style:none}
.channels::-webkit-scrollbar{display:none}
.chan{
  flex:0 0 auto;padding:8px 16px;border-radius:999px;font-size:14px;
  color:var(--ink-2);border:1px solid var(--line);white-space:nowrap;
  transition:background-color 180ms var(--ease),color 180ms var(--ease),border-color 180ms var(--ease);
}
.chan:hover{background:var(--accent-soft);color:var(--ink);border-color:rgba(28,59,51,.28)}
.chan.is-active{background:var(--brand);border-color:var(--brand);color:#F7F5F0}
.chan.is-active:hover{background:var(--brand-2);border-color:var(--brand-2);color:#FFFFFF}

/* ---------- 通用板块 ---------- */
main{padding-bottom:0}
.section{padding:72px 0}
@media(min-width:1024px){.section{padding:96px 0}}
.section-head{max-width:740px;margin-bottom:32px}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;font-size:12px;letter-spacing:.14em;
  color:var(--ink-3);text-transform:uppercase;margin-bottom:14px;
}
.eyebrow::before{content:"";width:22px;height:1px;background:var(--accent);display:inline-block}
.h2{font-size:26px;font-weight:700;letter-spacing:-.01em;line-height:1.3}
@media(min-width:1024px){.h2{font-size:32px}}
.lead{font-size:15.5px;color:var(--ink-2);max-width:640px;margin-top:12px;line-height:1.85}
.divider{height:1px;background:var(--line);border:0;margin:0}

/* ---------- 面包屑 & Hero ---------- */
.crumbs{font-size:13px;color:var(--ink-3);display:flex;flex-wrap:wrap;align-items:center;gap:8px;padding:20px 0 0}
.crumbs a{color:var(--ink-3)}
.crumbs a:hover{color:var(--brand)}
.crumbs .sep{color:var(--line)}
.crumbs .now{color:var(--ink-2)}
.page-hero{
  position:relative;
  padding:24px 0 56px;
  border-bottom:1px solid var(--line);
  background-image:linear-gradient(180deg,rgba(247,245,240,.93),rgba(247,245,240,.98)),url('/assets/images/backpic/back-2.png');
  background-size:cover;
  background-position:center;
  background-repeat:no-repeat;
}
.page-hero .hero-inner{display:grid;gap:36px;align-items:center;margin-top:26px}
@media(min-width:1024px){
  .page-hero .hero-inner{grid-template-columns:7fr 5fr;gap:48px}
}
.page-hero h1{
  font-size:clamp(30px,5.2vw,54px);
  font-weight:800;line-height:1.14;letter-spacing:-.02em;
  max-width:640px;
}
.page-hero h1 .h1-tail{display:block;color:var(--ink-2);font-size:.52em;font-weight:700;letter-spacing:0;margin-top:14px}
.hero-desc{font-size:16px;color:var(--ink-2);max-width:560px;margin-top:20px;line-height:1.85}
.hero-pills{display:flex;flex-wrap:wrap;gap:10px;margin-top:28px}
.pill-link{
  display:inline-flex;align-items:center;gap:8px;font-size:14px;
  padding:8px 16px;border-radius:999px;border:1px solid var(--line);
  background:var(--paper-2);color:var(--ink-2);
  transition:background-color 180ms var(--ease),color 180ms var(--ease),border-color 180ms var(--ease);
}
.pill-link:hover{background:var(--accent-soft);color:var(--ink);border-color:rgba(28,59,51,.28)}
.pill-link i{color:var(--accent);font-size:12px}
.hero-figure{
  border-radius:var(--radius);overflow:hidden;border:1px solid var(--line);
  background:var(--paper);box-shadow:var(--shadow-1);
  aspect-ratio:16/10;
}
.hero-figure img{width:100%;height:100%;object-fit:cover;border-radius:0}

/* ---------- 深色快照面板 ---------- */
.snapshot{
  background:var(--dark);color:#E7ECE8;border-radius:var(--radius);
  padding:28px;border:1px solid rgba(255,255,255,.08);
  display:grid;gap:24px;
}
@media(min-width:640px){.snapshot{grid-template-columns:repeat(2,1fr);padding:32px}}
@media(min-width:1024px){.snapshot{grid-template-columns:repeat(4,1fr);padding:36px}}
.snap-item{padding-left:16px;border-left:1px solid rgba(255,255,255,.14)}
.snap-item:first-child{padding-left:0;border-left:0}
@media(max-width:1023px){.snap-item{padding-left:14px}}
.snap-label{font-size:13px;color:#8D9C95;letter-spacing:.04em}
.snap-value{
  display:block;margin-top:8px;font-size:26px;font-weight:700;line-height:1.2;
  color:#F7F5F0;font-feature-settings:"tnum";letter-spacing:-.01em;
}
.snap-note{font-size:13px;color:#7E8C85;margin-top:6px;line-height:1.6}

/* ---------- 时间线 ---------- */
.timeline-wrap{margin-top:8px}
.timeline{position:relative;padding-top:8px}
.timeline::before{
  content:"";position:absolute;left:131px;top:16px;bottom:16px;width:1px;background:var(--line);
}
.tl-item{display:grid;grid-template-columns:120px 1fr;gap:32px;position:relative;padding-bottom:28px}
.tl-item:last-child{padding-bottom:0}
.tl-date{text-align:right;padding-right:4px;padding-top:18px}
.tl-date strong{
  display:block;font-size:18px;font-weight:700;font-feature-settings:"tnum";letter-spacing:.01em;line-height:1.2;
}
.tl-date span{display:block;font-size:12px;color:var(--ink-3);margin-top:6px;font-feature-settings:"tnum";letter-spacing:.04em}
.tl-body{
  position:relative;background:var(--paper-2);border:1px solid var(--line);
  border-radius:var(--radius);padding:22px 24px;box-shadow:var(--shadow-1);
  transition:transform 180ms var(--ease),box-shadow 180ms var(--ease),border-color 180ms var(--ease);
}
.tl-body::before{
  content:"";position:absolute;left:-26px;top:26px;width:8px;height:8px;border-radius:50%;
  background:var(--accent);box-shadow:0 0 0 4px var(--paper);
}
.tl-body:hover{transform:translateY(-3px);box-shadow:var(--shadow-2);border-color:rgba(28,59,51,.28)}
.tl-tags{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:12px}
.tag{
  font-size:12.5px;padding:3px 10px;border-radius:999px;border:1px solid var(--line);
  color:var(--ink-2);background:var(--paper);letter-spacing:.02em;
}
.tag.is-key{background:var(--accent-soft);border-color:rgba(196,96,47,.28);color:#7C3B1C}
.tl-title{font-size:18px;font-weight:700;line-height:1.45;letter-spacing:-.01em}
.tl-text{font-size:15px;color:var(--ink-2);line-height:1.8;margin-top:8px;max-width:700px}
.tl-link{
  display:inline-flex;align-items:center;gap:6px;margin-top:14px;font-size:14px;font-weight:600;
  color:var(--brand);text-decoration:underline;text-underline-offset:4px;text-decoration-color:var(--line);
}
.tl-link:hover{text-decoration-color:var(--accent)}
.tl-link i{transition:transform 180ms var(--ease);font-size:12px}
.tl-link:hover i{transform:translateX(4px)}

/* ---------- 节奏说明 ---------- */
.rhythm-list{border-top:1px solid var(--line);margin-top:8px}
.rhythm-item{
  display:grid;grid-template-columns:56px 1fr;gap:20px;
  padding:24px 0;border-bottom:1px solid var(--line);align-items:start;
}
@media(min-width:768px){.rhythm-item{grid-template-columns:72px 240px 1fr;gap:28px}}
.rhythm-num{
  font-size:15px;font-weight:700;color:var(--accent);letter-spacing:.08em;
  font-feature-settings:"tnum";padding-top:2px;
}
.rhythm-name{font-size:17px;font-weight:700;letter-spacing:-.01em}
.rhythm-text{font-size:15px;color:var(--ink-2);line-height:1.8;max-width:720px}

/* ---------- FAQ ---------- */
.faq-list{border-top:1px solid var(--line);margin-top:8px}
.faq-item{border-bottom:1px solid var(--line)}
.faq-item summary{
  list-style:none;cursor:pointer;display:flex;align-items:flex-start;justify-content:space-between;gap:20px;
  padding:22px 0;font-size:17px;font-weight:600;line-height:1.5;color:var(--ink);
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::after{
  content:"+";flex:0 0 auto;font-size:22px;font-weight:400;color:var(--brand);line-height:1;
  transition:transform 200ms var(--ease),color 200ms var(--ease);margin-top:2px;
}
.faq-item[open] summary::after{transform:rotate(45deg);color:var(--accent)}
.faq-item summary:hover{color:var(--brand-2)}
.faq-panel{padding:0 0 24px;font-size:15px;line-height:1.85;color:var(--ink-2);max-width:740px}
.faq-panel p+p{margin-top:12px}
.faq-panel ol{margin:10px 0 0;padding-left:1.3em}
.faq-panel li{margin-bottom:6px}

/* ---------- CTA ---------- */
.cta-band{
  background:var(--brand);color:#EFF3EF;border-radius:var(--radius);
  padding:36px 28px;display:grid;gap:28px;align-items:center;
  border:1px solid rgba(255,255,255,.1);
}
@media(min-width:1024px){.cta-band{grid-template-columns:1.3fr 1fr;padding:48px 44px;gap:40px}}
.cta-band h2{font-size:24px;font-weight:700;line-height:1.35;color:#FFFFFF;letter-spacing:-.01em}
@media(min-width:1024px){.cta-band h2{font-size:30px}}
.cta-band p{font-size:15px;color:#C7D3CC;margin-top:12px;line-height:1.8;max-width:520px}
.cta-actions{display:flex;flex-wrap:wrap;gap:12px}
.cta-actions .btn-primary{background:#F7F5F0;color:var(--brand);border-color:#F7F5F0}
.cta-actions .btn-primary:hover{background:#FFFFFF;color:var(--brand-2);border-color:#FFFFFF}
.cta-actions .btn-ghost{border-color:rgba(247,245,240,.5);color:#F7F5F0}
.cta-actions .btn-ghost:hover{background:rgba(247,245,240,.12);border-color:#F7F5F0;color:#FFFFFF}

/* ---------- 分页 ---------- */
.pager-block{padding:0 0 72px}
.pagination{display:flex;flex-wrap:wrap;align-items:center;justify-content:center;gap:8px;margin-top:48px}
.page-num{
  width:36px;height:36px;display:inline-flex;align-items:center;justify-content:center;
  border-radius:8px;border:1px solid var(--line);background:var(--paper-2);
  font-size:14px;color:var(--ink-2);font-feature-settings:"tnum";
  transition:background-color 180ms var(--ease),color 180ms var(--ease),border-color 180ms var(--ease);
}
.page-num:hover{background:var(--accent-soft);color:var(--ink);border-color:rgba(28,59,51,.28)}
.page-num.is-current{background:var(--brand);border-color:var(--brand);color:#F7F5F0}
.page-num.is-current:hover{background:var(--brand);color:#F7F5F0}
.back-home{display:flex;justify-content:center;margin-top:22px}
.text-link{
  font-size:14px;color:var(--brand);text-decoration:underline;text-underline-offset:4px;
  text-decoration-color:var(--line);
}
.text-link:hover{text-decoration-color:var(--accent)}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--dark);color:#C9D2CC;padding:64px 0 0;margin-top:0}
.footer-grid{display:grid;gap:36px}
@media(min-width:768px){.footer-grid{grid-template-columns:1fr 1fr}}
@media(min-width:1024px){.footer-grid{grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:40px}}
.footer-brand .brand-main{color:#F7F5F0}
.footer-brand .brand-sub{color:#8D9C95;border-left-color:rgba(255,255,255,.16)}
.footer-note{font-size:14px;line-height:1.8;color:#9BA8A1;max-width:320px;margin-top:16px}
.footer-meta{font-size:13px;color:#7E8C85;margin-top:12px;font-feature-settings:"tnum"}
.footer-title{font-size:13px;letter-spacing:.08em;color:#8A9490;margin-bottom:16px}
.footer-links{list-style:none;margin:0;padding:0;display:grid;gap:10px}
.footer-links a{color:#C9D2CC;font-size:15px}
.footer-links a:hover{color:#F7F5F0;text-decoration:underline;text-underline-offset:4px;text-decoration-color:var(--accent)}
.footer-qr{display:flex;gap:16px;align-items:flex-start;flex-wrap:wrap}
.footer-qr p{font-size:13px;color:#9BA8A1;line-height:1.7;max-width:220px}
.qr{
  width:96px;height:96px;border-radius:12px;background:#FFFFFF;position:relative;flex:0 0 auto;overflow:hidden;
}
.qr::before{
  content:"";position:absolute;inset:9px;
  background-image:
    repeating-linear-gradient(90deg,#0F1A17 0 3px,transparent 3px 7px),
    repeating-linear-gradient(0deg,#0F1A17 0 3px,transparent 3px 7px);
  opacity:.16;
}
.qr::after{
  content:"";position:absolute;inset:9px;
  background-image:
    linear-gradient(#0F1A17,#0F1A17),linear-gradient(#0F1A17,#0F1A17),
    linear-gradient(#0F1A17,#0F1A17),linear-gradient(#0F1A17,#0F1A17);
  background-size:16px 16px,16px 16px,16px 16px,16px 16px;
  background-position:top left,top right,bottom left,bottom right;
  background-repeat:no-repeat;
  opacity:.9;
}
.footer-bottom{
  margin-top:48px;border-top:1px solid rgba(255,255,255,.1);
  padding:22px 0 28px;display:flex;flex-wrap:wrap;gap:10px 24px;justify-content:space-between;
  font-size:13px;color:#7E8C85;
}

/* ---------- 动效 ---------- */
.reveal{opacity:0;transform:translateY(14px);transition:opacity 400ms var(--ease),transform 400ms var(--ease)}
.reveal.is-in{opacity:1;transform:none}
@media(prefers-reduced-motion:reduce){
  *{transition-duration:.001ms !important;animation-duration:.001ms !important}
  .reveal{opacity:1;transform:none;transition:none}
  .tl-body:hover{transform:none}
}

/* ---------- 响应式 ---------- */
@media(max-width:767px){
  .brand-row{height:56px;gap:12px}
  .brand-main{font-size:19px}
  .brand-sub{font-size:10px;letter-spacing:.1em;padding-left:7px}
  .brand-search{flex:0 0 auto;max-width:none}
  .search-form{display:none}
  .search-toggle{display:inline-flex}
  .brand-search.is-open .search-form{
    display:flex;position:absolute;top:calc(100% + 8px);right:0;left:auto;width:min(320px,86vw);
    z-index:70;box-shadow:var(--shadow-2);background:var(--paper-2);
  }
  .header-actions{gap:10px}
  .header-actions .link-quiet{display:none}
  .page-hero{padding-bottom:40px}
  .page-hero .hero-inner{margin-top:20px;gap:28px}
  .hero-figure{aspect-ratio:4/3}
  .timeline::before{display:none}
  .tl-item{grid-template-columns:1fr;gap:10px;padding-bottom:22px}
  .tl-date{text-align:left;padding:0;display:flex;align-items:baseline;gap:10px}
  .tl-date strong{font-size:15px;display:inline}
  .tl-date span{margin-top:0;display:inline}
  .tl-body::before{display:none}
  .tl-body{padding:20px}
  .rhythm-item{grid-template-columns:44px 1fr;gap:14px}
  .rhythm-name{grid-column:2}
  .rhythm-text{grid-column:2}
  .cta-band{padding:28px 22px}
}
@media(max-width:519px){
  .brand-sub{display:none}
  .snap-value{font-size:22px}
  .footer-qr p{max-width:none}
}