/* roulang page: index */
:root{
  --ink:#1e2434;
  --ink-soft:#454d63;
  --muted:#7c8397;
  --line:#e5e2db;
  --line-strong:#d5d1c7;
  --bg:#f7f6f2;
  --bg-deep:#efedE6;
  --surface:#ffffff;
  --brand:#c94f3d;
  --brand-dark:#a53a29;
  --brand-soft:#fbeeea;
  --accent:#1f6f63;
  --accent-soft:#e7f3f0;
  --gold:#b8873c;
  --gold-soft:#f8f1e4;
  --radius-lg:20px;
  --radius:14px;
  --radius-sm:9px;
  --shadow-sm:0 4px 14px rgba(30,36,52,.06);
  --shadow:0 12px 34px rgba(30,36,52,.09);
  --shadow-lg:0 22px 50px rgba(30,36,52,.15);
  --container:1180px;
  --gap:26px;
  --ease:cubic-bezier(.22,.7,.35,1);
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:"Noto Sans SC","PingFang SC","Hiragino Sans GB","Microsoft YaHei","Source Han Sans SC",sans-serif;
  font-size:16px;
  line-height:1.78;
  color:var(--ink);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;height:auto}
a{color:inherit;text-decoration:none;transition:color .25s var(--ease)}
a:hover{color:var(--brand)}
button,input,textarea,select{font:inherit;color:inherit}
h1,h2,h3,h4,h5,p,figure,blockquote{margin:0}
ul,ol{margin:0;padding:0;list-style:none}
:focus-visible{outline:2px solid var(--brand);outline-offset:3px;border-radius:4px}
::selection{background:var(--brand);color:#fff}

.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 24px}
.narrow{max-width:900px}

/* ---------- Header ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(247,246,242,.92);
  backdrop-filter:blur(12px);
  border-bottom:1px solid var(--line);
}
.header-inner{
  display:flex;align-items:center;justify-content:space-between;
  gap:20px;min-height:72px;
}
.brand{display:flex;align-items:center;gap:12px}
.brand-mark{
  width:42px;height:42px;border-radius:12px;flex:none;
  background:linear-gradient(135deg,var(--brand),#e07a5f);
  color:#fff;display:grid;place-items:center;
  font-weight:800;font-size:17px;letter-spacing:.5px;
  box-shadow:0 8px 18px rgba(201,79,61,.28);
}
.brand-text{display:flex;flex-direction:column;line-height:1.2}
.brand-name{font-size:18px;font-weight:800;letter-spacing:.4px}
.brand-sub{font-size:11.5px;color:var(--muted);letter-spacing:2px}
.nav-toggle{display:none}
.nav-toggle-label{
  display:none;width:44px;height:44px;border-radius:12px;
  border:1px solid var(--line-strong);background:var(--surface);
  cursor:pointer;position:relative;
}
.nav-toggle-label span,
.nav-toggle-label span::before,
.nav-toggle-label span::after{
  content:"";position:absolute;left:50%;top:50%;width:18px;height:2px;
  background:var(--ink);border-radius:2px;transform:translate(-50%,-50%);
  transition:transform .3s var(--ease),opacity .3s var(--ease);
}
.nav-toggle-label span::before{top:-6px}
.nav-toggle-label span::after{top:6px}
.main-nav ul{display:flex;align-items:center;gap:6px}
.main-nav a{
  display:block;padding:9px 16px;border-radius:999px;
  font-size:15px;font-weight:600;color:var(--ink-soft);
}
.main-nav a:hover{background:var(--brand-soft);color:var(--brand-dark)}
.main-nav a.active{background:var(--ink);color:#fff}
.header-cta{
  display:inline-flex;align-items:center;gap:8px;
  padding:10px 20px;border-radius:999px;
  background:var(--brand);color:#fff;font-weight:700;font-size:14.5px;
  box-shadow:0 10px 22px rgba(201,79,61,.26);
  transition:transform .25s var(--ease),box-shadow .25s var(--ease),background .25s var(--ease);
}
.header-cta:hover{background:var(--brand-dark);color:#fff;transform:translateY(-2px);box-shadow:0 16px 30px rgba(201,79,61,.32)}

/* ---------- Buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:9px;
  padding:13px 26px;border-radius:999px;border:1px solid transparent;
  font-weight:700;font-size:15px;cursor:pointer;
  transition:transform .25s var(--ease),box-shadow .25s var(--ease),background .25s var(--ease),color .25s var(--ease),border-color .25s var(--ease);
}
.btn-primary{background:var(--brand);color:#fff;box-shadow:0 12px 26px rgba(201,79,61,.28)}
.btn-primary:hover{background:var(--brand-dark);color:#fff;transform:translateY(-2px);box-shadow:0 18px 34px rgba(201,79,61,.34)}
.btn-ghost{background:rgba(255,255,255,.14);color:#fff;border-color:rgba(255,255,255,.5)}
.btn-ghost:hover{background:#fff;color:var(--ink);transform:translateY(-2px)}
.btn-line{background:var(--surface);color:var(--ink);border-color:var(--line-strong)}
.btn-line:hover{border-color:var(--brand);color:var(--brand);transform:translateY(-2px);box-shadow:var(--shadow-sm)}
.btn:active{transform:translateY(0) scale(.99)}

/* ---------- Badges & tags ---------- */
.badge{
  display:inline-flex;align-items:center;gap:6px;
  padding:5px 13px;border-radius:999px;
  font-size:12.5px;font-weight:700;letter-spacing:.4px;
  background:var(--accent-soft);color:var(--accent);
}
.badge-brand{background:var(--brand-soft);color:var(--brand-dark)}
.badge-gold{background:var(--gold-soft);color:var(--gold)}
.tag-row{display:flex;flex-wrap:wrap;gap:10px}
.tag{
  display:inline-block;padding:6px 14px;border-radius:999px;
  background:var(--surface);border:1px solid var(--line-strong);
  font-size:13px;color:var(--ink-soft);
  transition:all .25s var(--ease);
}
.tag:hover{border-color:var(--brand);color:var(--brand);background:var(--brand-soft)}

/* ---------- Section basics ---------- */
.section{padding:76px 0}
.section-alt{background:var(--bg-deep)}
.section-dark{background:var(--ink);color:#e9eaf0}
.section-head{max-width:760px;margin-bottom:40px}
.section-head.center{margin-left:auto;margin-right:auto;text-align:center}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:12.5px;font-weight:800;letter-spacing:2.4px;
  text-transform:uppercase;color:var(--brand);margin-bottom:14px;
}
.eyebrow::before{content:"";width:22px;height:2px;background:var(--brand);border-radius:2px}
.section-dark .eyebrow{color:#f0a894}
.section-dark .eyebrow::before{background:#f0a894}
h2.section-title{font-size:clamp(23px,3vw,32px);line-height:1.35;font-weight:800;letter-spacing:-.3px}
.section-desc{margin-top:14px;color:var(--muted);font-size:16px}
.section-dark .section-desc{color:#a9aebf}

/* ---------- Hero ---------- */
.hero{
  position:relative;
  padding:96px 0 88px;
  background-image:linear-gradient(115deg,rgba(23,27,40,.93) 0%,rgba(23,27,40,.82) 46%,rgba(23,27,40,.58) 100%),url("/assets/images/8eda531a4b4635db.jpg");
  background-size:cover;
  background-position:center;
  color:#fff;
  overflow:hidden;
}
.hero::after{
  content:"";position:absolute;inset:auto 0 -1px 0;height:120px;
  background:linear-gradient(to bottom,rgba(247,246,242,0),var(--bg));
}
.hero-inner{position:relative;z-index:2;max-width:840px}
.hero-brand{
  display:inline-flex;align-items:center;gap:10px;
  padding:7px 16px;border-radius:999px;
  background:rgba(255,255,255,.12);border:1px solid rgba(255,255,255,.26);
  font-size:13px;font-weight:700;letter-spacing:1.2px;margin-bottom:24px;
}
.hero-brand .dot{width:7px;height:7px;border-radius:50%;background:#f0a894;box-shadow:0 0 0 4px rgba(240,168,148,.22)}
.hero h1{
  font-size:clamp(29px,4.4vw,50px);
  line-height:1.28;font-weight:800;letter-spacing:-.5px;
  text-shadow:0 4px 24px rgba(0,0,0,.28);
}
.hero h1 em{font-style:normal;color:#f3b39f}
.hero-lead{
  margin-top:22px;font-size:clamp(15.5px,1.5vw,18px);
  color:rgba(255,255,255,.86);max-width:680px;
}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:34px}
.hero-tags{margin-top:34px;display:flex;flex-wrap:wrap;gap:10px}
.hero-tags span{
  padding:6px 14px;border-radius:999px;font-size:13px;
  background:rgba(255,255,255,.1);border:1px solid rgba(255,255,255,.2);
  color:rgba(255,255,255,.9);
}

/* ---------- Stat strip ---------- */
.stat-strip{
  position:relative;z-index:3;margin-top:-46px;
}
.stat-card{
  background:var(--surface);border-radius:var(--radius-lg);
  box-shadow:var(--shadow);border:1px solid var(--line);
  display:grid;grid-template-columns:repeat(4,1fr);
  overflow:hidden;
}
.stat-item{padding:26px 22px;border-right:1px solid var(--line)}
.stat-item:last-child{border-right:none}
.stat-value{font-size:24px;font-weight:800;color:var(--brand);letter-spacing:-.4px}
.stat-label{font-size:13px;color:var(--muted);margin-top:4px}
.stat-note{font-size:12.5px;color:var(--ink-soft);margin-top:8px;line-height:1.6}

/* ---------- Grid & cards ---------- */
.grid{display:grid;gap:var(--gap)}
.grid-2{grid-template-columns:repeat(2,1fr)}
.grid-3{grid-template-columns:repeat(3,1fr)}
.grid-4{grid-template-columns:repeat(4,1fr)}

.card{
  background:var(--surface);border:1px solid var(--line);
  border-radius:var(--radius);padding:26px;
  box-shadow:var(--shadow-sm);
  transition:transform .3s var(--ease),box-shadow .3s var(--ease),border-color .3s var(--ease);
  height:100%;
}
.card:hover{transform:translateY(-5px);box-shadow:var(--shadow-lg);border-color:var(--line-strong)}
.card h3{font-size:18px;font-weight:800;margin-bottom:10px;letter-spacing:-.2px}
.card p{color:var(--ink-soft);font-size:14.8px}
.card-icon{
  width:44px;height:44px;border-radius:12px;display:grid;place-items:center;
  background:var(--brand-soft);color:var(--brand-dark);
  font-weight:800;font-size:16px;margin-bottom:16px;
}
.card-icon.green{background:var(--accent-soft);color:var(--accent)}
.card-icon.gold{background:var(--gold-soft);color:var(--gold)}
.card-meta{margin-top:16px;font-size:12.5px;color:var(--muted);display:flex;gap:12px;flex-wrap:wrap}

/* ---------- Image cards ---------- */
.media-card{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);
  overflow:hidden;box-shadow:var(--shadow-sm);height:100%;
  display:flex;flex-direction:column;
  transition:transform .3s var(--ease),box-shadow .3s var(--ease);
}
.media-card:hover{transform:translateY(-5px);box-shadow:var(--shadow-lg)}
.media-thumb{position:relative;aspect-ratio:16/10;overflow:hidden;background:var(--bg-deep)}
.media-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .6s var(--ease)}
.media-card:hover .media-thumb img{transform:scale(1.06)}
.media-thumb::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(to top,rgba(20,24,36,.42),rgba(20,24,36,0) 62%);
}
.media-thumb .chip{
  position:absolute;left:14px;top:14px;z-index:2;
  padding:5px 12px;border-radius:999px;font-size:12px;font-weight:700;
  background:rgba(255,255,255,.92);color:var(--ink);
}
.media-body{padding:22px;display:flex;flex-direction:column;gap:10px;flex:1}
.media-body h3{font-size:17.5px;font-weight:800}
.media-body p{color:var(--ink-soft);font-size:14.5px}

/* ---------- Split block ---------- */
.split{display:grid;grid-template-columns:1.05fr .95fr;gap:52px;align-items:center}
.split.reverse .split-media{order:-1}
.split-media{border-radius:var(--radius-lg);overflow:hidden;box-shadow:var(--shadow);border:1px solid var(--line)}
.split-media img{width:100%;aspect-ratio:4/3;object-fit:cover}
.split h2{font-size:clamp(22px,2.8vw,30px);font-weight:800;line-height:1.36;margin-bottom:18px}
.split p{color:var(--ink-soft);margin-bottom:16px}

/* ---------- Timeline ---------- */
.timeline{position:relative;margin-top:8px;padding-left:30px}
.timeline::before{
  content:"";position:absolute;left:7px;top:6px;bottom:6px;width:2px;
  background:linear-gradient(to bottom,var(--brand),rgba(201,79,61,.12));
  border-radius:2px;
}
.timeline-item{position:relative;padding:0 0 30px 8px}
.timeline-item:last-child{padding-bottom:0}
.timeline-item::before{
  content:"";position:absolute;left:-30px;top:9px;
  width:16px;height:16px;border-radius:50%;
  background:var(--surface);border:3px solid var(--brand);
  box-shadow:0 0 0 4px rgba(201,79,61,.12);
}
.timeline-item h3{font-size:17px;font-weight:800;margin-bottom:6px}
.timeline-item p{color:var(--ink-soft);font-size:14.8px}
.timeline-item .year{
  display:inline-block;font-size:12.5px;font-weight:800;letter-spacing:1px;
  color:var(--brand);margin-bottom:4px;
}

/* ---------- Intensity bars ---------- */
.meter-list{display:grid;gap:22px;margin-top:10px}
.meter-head{display:flex;justify-content:space-between;align-items:baseline;gap:12px;margin-bottom:10px}
.meter-head strong{font-size:15.5px;font-weight:800}
.meter-head span{font-size:13px;color:var(--muted)}
.meter-track{height:10px;border-radius:999px;background:var(--bg-deep);overflow:hidden}
.meter-fill{
  height:100%;border-radius:999px;
  background:linear-gradient(90deg,#e6a07f,var(--brand));
  transition:width 1s var(--ease);
}
.meter-fill.deep{background:linear-gradient(90deg,#d98169,#9c2f20)}
.meter-fill.mid{background:linear-gradient(90deg,#eab98f,#c9703b)}
.meter-fill.soft{background:linear-gradient(90deg,#bcd9d1,var(--accent))}

/* ---------- Compare cards ---------- */
.compare{display:grid;gap:16px;grid-template-columns:repeat(5,1fr)}
.compare-item{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);
  padding:20px 18px;text-align:center;box-shadow:var(--shadow-sm);
  transition:transform .3s var(--ease),box-shadow .3s var(--ease),border-color .3s var(--ease);
}
.compare-item:hover{transform:translateY(-5px);box-shadow:var(--shadow);border-color:var(--brand)}
.compare-word{font-size:19px;font-weight:800;letter-spacing:.5px}
.compare-lv{margin-top:10px;font-size:12.5px;font-weight:700;padding:4px 10px;border-radius:999px;display:inline-block;background:var(--brand-soft);color:var(--brand-dark)}
.compare-item p{margin-top:12px;font-size:13.6px;color:var(--ink-soft);text-align:left}

/* ---------- Checklist ---------- */
.check-list{display:grid;gap:14px}
.check-list li{
  display:flex;gap:14px;align-items:flex-start;
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-sm);
  padding:18px 20px;box-shadow:var(--shadow-sm);
  transition:border-color .25s var(--ease),transform .25s var(--ease);
}
.check-list li:hover{border-color:var(--brand);transform:translateX(4px)}
.check-mark{
  flex:none;width:26px;height:26px;border-radius:8px;
  background:var(--brand-soft);color:var(--brand-dark);
  display:grid;place-items:center;font-size:13px;font-weight:800;margin-top:2px;
}
.check-list strong{display:block;font-size:15.5px;font-weight:800;margin-bottom:3px}
.check-list p{font-size:14.4px;color:var(--ink-soft)}

/* ---------- Steps ---------- */
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:18px;counter-reset:step}
.step{
  position:relative;background:var(--surface);border:1px solid var(--line);
  border-radius:var(--radius);padding:26px 22px;box-shadow:var(--shadow-sm);
  transition:transform .3s var(--ease),box-shadow .3s var(--ease);
}
.step:hover{transform:translateY(-5px);box-shadow:var(--shadow)}
.step-num{
  font-size:13px;font-weight:800;letter-spacing:2px;color:var(--brand);margin-bottom:12px;
}
.step h3{font-size:17px;font-weight:800;margin-bottom:8px}
.step p{font-size:14.4px;color:var(--ink-soft)}
.step::after{
  content:"";position:absolute;right:-13px;top:50%;width:8px;height:8px;
  border-top:2px solid var(--line-strong);border-right:2px solid var(--line-strong);
  transform:translateY(-50%) rotate(45deg);
}
.step:last-child::after{display:none}

/* ---------- Quotes ---------- */
.quote-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:var(--gap)}
.quote-card{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);
  padding:28px 26px;box-shadow:var(--shadow-sm);position:relative;height:100%;
  transition:transform .3s var(--ease),box-shadow .3s var(--ease);
}
.quote-card:hover{transform:translateY(-5px);box-shadow:var(--shadow)}
.quote-card::before{
  content:"“";position:absolute;right:22px;top:6px;
  font-size:60px;line-height:1;color:rgba(201,79,61,.14);font-family:Georgia,serif;
}
.quote-card p{font-size:15.2px;color:var(--ink-soft);position:relative;z-index:1}
.quote-who{
  margin-top:20px;display:flex;align-items:center;gap:12px;
  padding-top:16px;border-top:1px dashed var(--line-strong);
}
.avatar{
  width:38px;height:38px;border-radius:50%;flex:none;display:grid;place-items:center;
  background:var(--ink);color:#fff;font-size:14px;font-weight:700;
}
.quote-who span{font-size:13.4px;color:var(--muted)}

/* ---------- Channel matrix ---------- */
.channel-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:var(--gap)}
.channel{
  border-radius:var(--radius-lg);overflow:hidden;position:relative;
  background:var(--ink);color:#fff;box-shadow:var(--shadow);
  min-height:280px;display:flex;flex-direction:column;justify-content:flex-end;
  transition:transform .35s var(--ease),box-shadow .35s var(--ease);
}
.channel:hover{transform:translateY(-6px);box-shadow:var(--shadow-lg);color:#fff}
.channel img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;opacity:.42;transition:opacity .45s var(--ease),transform .6s var(--ease)}
.channel:hover img{opacity:.56;transform:scale(1.05)}
.channel-body{position:relative;z-index:2;padding:28px;background:linear-gradient(to top,rgba(18,21,32,.92),rgba(18,21,32,.18))}
.channel-body h3{font-size:20px;font-weight:800;margin-bottom:8px}
.channel-body p{font-size:14.3px;color:rgba(255,255,255,.82)}
.channel-more{
  display:inline-flex;align-items:center;gap:7px;margin-top:16px;
  font-size:13.6px;font-weight:700;color:#f3b39f;
}
.channel:hover .channel-more{gap:12px}

/* ---------- FAQ ---------- */
.faq-list{display:grid;gap:14px}
.faq-item{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);
  box-shadow:var(--shadow-sm);overflow:hidden;
  transition:border-color .25s var(--ease),box-shadow .25s var(--ease);
}
.faq-item[open]{border-color:var(--brand);box-shadow:var(--shadow)}
.faq-item summary{
  cursor:pointer;padding:20px 24px;font-weight:700;font-size:16.5px;
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  list-style:none;
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::after{
  content:"+";flex:none;width:28px;height:28px;border-radius:50%;
  display:grid;place-items:center;background:var(--brand-soft);color:var(--brand-dark);
  font-weight:800;font-size:16px;transition:transform .3s var(--ease);
}
.faq-item[open] summary::after{content:"−";transform:rotate(180deg)}
.faq-body{padding:0 24px 22px;color:var(--ink-soft);font-size:15px}

/* ---------- CTA ---------- */
.cta{
  position:relative;border-radius:var(--radius-lg);overflow:hidden;
  background-image:linear-gradient(120deg,rgba(24,28,42,.94),rgba(24,28,42,.72)),url("/assets/images/df014d6768186021.webp");
  background-size:cover;background-position:center;
  color:#fff;padding:56px 48px;box-shadow:var(--shadow-lg);
}
.cta-inner{position:relative;z-index:2;display:grid;grid-template-columns:1.15fr .85fr;gap:44px;align-items:center}
.cta h2{font-size:clamp(22px,2.8vw,30px);font-weight:800;line-height:1.36}
.cta p{margin-top:14px;color:rgba(255,255,255,.8);font-size:15.4px}
.subscribe-form{display:flex;flex-direction:column;gap:12px;background:rgba(255,255,255,.1);border:1px solid rgba(255,255,255,.22);border-radius:var(--radius);padding:22px}
.subscribe-form label{font-size:13.4px;color:rgba(255,255,255,.85)}
.subscribe-form input,
.subscribe-form textarea{
  width:100%;padding:12px 15px;border-radius:var(--radius-sm);
  border:1px solid rgba(255,255,255,.28);background:rgba(255,255,255,.94);
  color:var(--ink);font-size:14.6px;
}
.subscribe-form input::placeholder,
.subscribe-form textarea::placeholder{color:#9aa0b0}
.subscribe-form input:focus,
.subscribe-form textarea:focus{outline:none;border-color:#f3b39f;box-shadow:0 0 0 3px rgba(243,179,159,.3)}
.subscribe-form .hint{font-size:12.4px;color:rgba(255,255,255,.66)}

/* ---------- Footer ---------- */
.site-footer{background:#171b28;color:#a9aebf;padding:64px 0 28px;margin-top:0}
.footer-top{display:grid;grid-template-columns:1.3fr 1fr 1fr 1fr;gap:36px;padding-bottom:40px;border-bottom:1px solid rgba(255,255,255,.1)}
.footer-brand{display:flex;align-items:center;gap:12px;margin-bottom:16px}
.footer-brand .brand-mark{box-shadow:none}
.footer-brand strong{color:#fff;font-size:17px;letter-spacing:.4px}
.footer-about{font-size:14.2px;line-height:1.8;color:#8d93a6}
.footer-col h4{color:#fff;font-size:14.6px;font-weight:800;margin-bottom:16px;letter-spacing:.6px}
.footer-col li{margin-bottom:10px}
.footer-col a{font-size:14.2px;color:#9ba1b3}
.footer-col a:hover{color:#f3b39f}
.footer-bottom{
  padding-top:24px;display:flex;flex-wrap:wrap;gap:14px;
  align-items:center;justify-content:space-between;font-size:13.4px;color:#7d8396;
}
.footer-bottom a{color:#9ba1b3}
.footer-bottom a:hover{color:#f3b39f}

/* ---------- Responsive ---------- */
@media (max-width:1024px){
  .section{padding:62px 0}
  .grid-4{grid-template-columns:repeat(2,1fr)}
  .grid-3{grid-template-columns:repeat(2,1fr)}
  .compare{grid-template-columns:repeat(3,1fr)}
  .steps{grid-template-columns:repeat(2,1fr)}
  .step::after{display:none}
  .quote-grid{grid-template-columns:1fr 1fr}
  .channel-grid{grid-template-columns:1fr 1fr}
  .split{grid-template-columns:1fr;gap:34px}
  .split.reverse .split-media{order:0}
  .cta-inner{grid-template-columns:1fr;gap:30px}
  .footer-top{grid-template-columns:1fr 1fr;gap:30px}
  .header-cta{display:none}
}
@media (max-width:768px){
  .container{padding:0 18px}
  .nav-toggle-label{display:block}
  .main-nav{
    position:absolute;left:0;right:0;top:100%;
    background:var(--surface);border-bottom:1px solid var(--line);
    box-shadow:var(--shadow);
    max-height:0;overflow:hidden;
    transition:max-height .38s var(--ease);
  }
  .main-nav ul{flex-direction:column;align-items:stretch;gap:0;padding:10px 18px 18px}
  .main-nav a{border-radius:var(--radius-sm);padding:13px 16px}
  .nav-toggle:checked ~ .main-nav{max-height:420px}
  .nav-toggle:checked + .nav-toggle-label span{transform:translate(-50%,-50%) rotate(45deg)}
  .nav-toggle:checked + .nav-toggle-label span::before{top:0;transform:rotate(-90deg)}
  .nav-toggle:checked + .nav-toggle-label span::after{top:0;opacity:0}
  .hero{padding:66px 0 72px}
  .hero-actions .btn{width:100%}
  .stat-card{grid-template-columns:1fr 1fr}
  .stat-item{border-right:none;border-bottom:1px solid var(--line)}
  .stat-item:nth-child(odd){border-right:1px solid var(--line)}
  .stat-item:nth-last-child(-n+2){border-bottom:none}
  .grid-2,.grid-3,.grid-4{grid-template-columns:1fr}
  .compare{grid-template-columns:repeat(2,1fr)}
  .quote-grid{grid-template-columns:1fr}
  .channel-grid{grid-template-columns:1fr}
  .cta{padding:38px 24px}
  .section{padding:54px 0}
}
@media (max-width:520px){
  body{font-size:15.4px}
  .brand-sub{display:none}
  .stat-card{grid-template-columns:1fr}
  .stat-item{border-right:none !important;border-bottom:1px solid var(--line)}
  .stat-item:last-child{border-bottom:none}
  .steps{grid-template-columns:1fr}
  .compare{grid-template-columns:1fr}
  .footer-top{grid-template-columns:1fr}
  .timeline{padding-left:26px}
  .hero h1{font-size:26px}
}

/* roulang page: category1 */
/* ================= 设计系统 ================= */
:root{
  --ink:#1e2434;
  --ink-soft:#454d63;
  --muted:#7c8397;
  --line:#e5e2db;
  --line-strong:#d5d1c7;
  --bg:#f7f6f2;
  --bg-deep:#efede6;
  --surface:#ffffff;
  --brand:#c94f3d;
  --brand-dark:#a53a29;
  --brand-soft:#fbeeea;
  --accent:#1f6f63;
  --accent-soft:#e7f3f0;
  --gold:#b8873c;
  --gold-soft:#f8f1e4;
  --radius-lg:20px;
  --radius:14px;
  --radius-sm:9px;
  --shadow-sm:0 4px 14px rgba(30,36,52,.06);
  --shadow:0 12px 34px rgba(30,36,52,.09);
  --shadow-lg:0 22px 50px rgba(30,36,52,.15);
  --container:1180px;
  --gap:26px;
  --ease:cubic-bezier(.22,.7,.35,1);
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:"Noto Sans SC","PingFang SC","Hiragino Sans GB","Microsoft YaHei","Source Han Sans SC",sans-serif;
  font-size:16px;line-height:1.78;color:var(--ink);background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;height:auto}
a{color:inherit;text-decoration:none;transition:color .25s var(--ease)}
a:hover{color:var(--brand)}
a:focus-visible,button:focus-visible,input:focus-visible,textarea:focus-visible,summary:focus-visible{
  outline:3px solid rgba(201,79,61,.4);outline-offset:2px;border-radius:6px;
}
button,input,textarea,select{font:inherit;color:inherit}
p{margin:0 0 1em}
p:last-child{margin-bottom:0}
h1,h2,h3,h4{margin:0;font-weight:800;letter-spacing:-.2px;line-height:1.34}
ul{margin:0;padding:0;list-style:none}
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 24px}
.narrow{max-width:900px}

/* ================= 头部导航 ================= */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(247,246,242,.92);backdrop-filter:blur(12px);
  border-bottom:1px solid var(--line);
}
.header-inner{display:flex;align-items:center;justify-content:space-between;gap:20px;min-height:72px}
.brand{display:flex;align-items:center;gap:12px}
.brand-mark{
  width:42px;height:42px;border-radius:12px;flex:none;
  background:linear-gradient(135deg,var(--brand),#e07a5f);
  color:#fff;display:grid;place-items:center;font-weight:800;font-size:17px;letter-spacing:.5px;
  box-shadow:0 8px 18px rgba(201,79,61,.28);
}
.brand-text{display:flex;flex-direction:column;line-height:1.2}
.brand-name{font-size:18px;font-weight:800;letter-spacing:.4px}
.brand-sub{font-size:11.5px;color:var(--muted);letter-spacing:2px}
.nav-toggle{display:none}
.nav-toggle-label{
  display:none;width:44px;height:44px;border-radius:12px;
  border:1px solid var(--line-strong);background:var(--surface);cursor:pointer;position:relative;
}
.nav-toggle-label span,
.nav-toggle-label span::before,
.nav-toggle-label span::after{
  content:"";position:absolute;left:50%;top:50%;width:18px;height:2px;
  background:var(--ink);border-radius:2px;transform:translate(-50%,-50%);
  transition:transform .3s var(--ease),opacity .3s var(--ease);
}
.nav-toggle-label span::before{top:-6px}
.nav-toggle-label span::after{top:6px}
.main-nav ul{display:flex;align-items:center;gap:6px}
.main-nav a{display:block;padding:9px 16px;border-radius:999px;font-size:15px;font-weight:600;color:var(--ink-soft)}
.main-nav a:hover{background:var(--brand-soft);color:var(--brand-dark)}
.main-nav a.active{background:var(--ink);color:#fff}
.header-cta{
  display:inline-flex;align-items:center;gap:8px;padding:10px 20px;border-radius:999px;
  background:var(--brand);color:#fff;font-weight:700;font-size:14.5px;
  box-shadow:0 10px 22px rgba(201,79,61,.26);
  transition:transform .25s var(--ease),box-shadow .25s var(--ease),background .25s var(--ease);
}
.header-cta:hover{background:var(--brand-dark);color:#fff;transform:translateY(-2px);box-shadow:0 16px 30px rgba(201,79,61,.32)}

/* ================= 按钮 ================= */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:9px;
  padding:13px 26px;border-radius:999px;border:1px solid transparent;
  font-weight:700;font-size:15px;cursor:pointer;
  transition:transform .25s var(--ease),box-shadow .25s var(--ease),background .25s var(--ease),color .25s var(--ease),border-color .25s var(--ease);
}
.btn-primary{background:var(--brand);color:#fff;box-shadow:0 12px 26px rgba(201,79,61,.28)}
.btn-primary:hover{background:var(--brand-dark);color:#fff;transform:translateY(-2px);box-shadow:0 18px 34px rgba(201,79,61,.34)}
.btn-ghost{background:rgba(255,255,255,.14);color:#fff;border-color:rgba(255,255,255,.5)}
.btn-ghost:hover{background:#fff;color:var(--ink);transform:translateY(-2px)}
.btn-line{background:var(--surface);color:var(--ink);border-color:var(--line-strong)}
.btn-line:hover{border-color:var(--brand);color:var(--brand);transform:translateY(-2px);box-shadow:var(--shadow-sm)}
.btn:active{transform:translateY(0) scale(.99)}

/* ================= 徽章 / 标签 ================= */
.badge{
  display:inline-flex;align-items:center;gap:6px;padding:5px 13px;border-radius:999px;
  font-size:12.5px;font-weight:700;letter-spacing:.4px;
  background:var(--accent-soft);color:var(--accent);
}
.badge-brand{background:var(--brand-soft);color:var(--brand-dark)}
.badge-gold{background:var(--gold-soft);color:var(--gold)}
.tag-row{display:flex;flex-wrap:wrap;gap:10px}
.tag{
  display:inline-block;padding:6px 14px;border-radius:999px;
  background:var(--surface);border:1px solid var(--line-strong);
  font-size:13px;color:var(--ink-soft);transition:all .25s var(--ease);
}
.tag:hover{border-color:var(--brand);color:var(--brand);background:var(--brand-soft)}

/* ================= 板块框架 ================= */
.section{padding:76px 0}
.section-alt{background:var(--bg-deep)}
.section-dark{background:var(--ink);color:#e9eaf0}
.section-head{max-width:760px;margin-bottom:40px}
.section-head.center{margin-left:auto;margin-right:auto;text-align:center}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;font-size:12.5px;font-weight:800;
  letter-spacing:2.4px;text-transform:uppercase;color:var(--brand);margin-bottom:14px;
}
.eyebrow::before{content:"";width:22px;height:2px;background:var(--brand);border-radius:2px}
.section-dark .eyebrow{color:#f0a894}
.section-dark .eyebrow::before{background:#f0a894}
h2.section-title{font-size:clamp(23px,3vw,32px);font-weight:800}
.section-desc{margin-top:14px;color:var(--muted);font-size:16px}
.section-dark .section-desc{color:#a9aebf}

/* ================= 内页首屏 ================= */
.page-hero{
  position:relative;color:#fff;padding:84px 0 72px;
  background-image:linear-gradient(112deg,rgba(20,24,36,.94) 0%,rgba(20,24,36,.84) 45%,rgba(20,24,36,.52) 100%),
    url("/assets/images/d09a820860461481.jpg");
  background-size:cover;background-position:center;overflow:hidden;
}
.page-hero::after{
  content:"";position:absolute;right:-120px;top:-140px;width:420px;height:420px;border-radius:50%;
  background:radial-gradient(circle,rgba(201,79,61,.32),transparent 68%);
}
.page-hero .container{position:relative;z-index:2}
.crumb{display:flex;flex-wrap:wrap;align-items:center;gap:9px;font-size:13.5px;color:rgba(255,255,255,.66);margin-bottom:20px}
.crumb a:hover{color:#fff}
.crumb span.sep{opacity:.5}
.page-hero h1{
  font-size:clamp(27px,4.1vw,44px);line-height:1.26;max-width:880px;letter-spacing:-.6px;
}
.page-hero .lead{
  margin-top:20px;max-width:720px;font-size:16.5px;line-height:1.9;color:rgba(255,255,255,.82);
}
.hero-tags{margin-top:24px}
.hero-tags .tag{background:rgba(255,255,255,.1);border-color:rgba(255,255,255,.28);color:#f2e9e5}
.hero-tags .tag:hover{background:#fff;color:var(--ink);border-color:#fff}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:32px}

/* 数据条 */
.stat-strip{
  display:grid;grid-template-columns:repeat(4,1fr);gap:18px;
  margin-top:46px;padding:26px 28px;border-radius:var(--radius-lg);
  background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.16);
  backdrop-filter:blur(8px);
}
.stat-item .num{font-size:28px;font-weight:800;letter-spacing:-.5px;color:#fff;line-height:1.2}
.stat-item .lbl{font-size:13px;color:rgba(255,255,255,.7);margin-top:4px}

/* ================= 网格与卡片 ================= */
.grid{display:grid;gap:var(--gap)}
.grid-2{grid-template-columns:repeat(2,1fr)}
.grid-3{grid-template-columns:repeat(3,1fr)}
.grid-4{grid-template-columns:repeat(4,1fr)}
.card{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-lg);
  padding:28px 26px;box-shadow:var(--shadow-sm);
  transition:transform .3s var(--ease),box-shadow .3s var(--ease),border-color .3s var(--ease);
}
.card:hover{transform:translateY(-5px);box-shadow:var(--shadow);border-color:var(--line-strong)}
.card .card-index{
  font-size:13px;font-weight:800;letter-spacing:2px;color:var(--brand);margin-bottom:12px;display:block;
}
.card h3{font-size:18.5px;margin-bottom:12px}
.card p{color:var(--ink-soft);font-size:15.2px}
.card-accent{border-top:4px solid var(--brand)}
.card-accent.alt{border-top-color:var(--accent)}
.card-accent.gold{border-top-color:var(--gold)}

/* ================= 语义分层条 ================= */
.layer-list{display:grid;gap:16px}
.layer{
  display:grid;grid-template-columns:132px 1fr;gap:24px;align-items:start;
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);
  padding:24px 26px;box-shadow:var(--shadow-sm);
  transition:box-shadow .3s var(--ease),transform .3s var(--ease);
}
.layer:hover{box-shadow:var(--shadow);transform:translateX(4px)}
.layer-key{
  font-weight:800;color:var(--brand-dark);font-size:15.5px;
  border-right:2px solid var(--brand-soft);padding-right:16px;
}
.layer-key small{display:block;font-size:12px;letter-spacing:1.6px;color:var(--muted);font-weight:700;margin-top:6px}
.layer-body strong{display:block;font-size:16.5px;margin-bottom:6px}
.layer-body p{color:var(--ink-soft);font-size:15.2px;margin:0}

/* ================= 时间轴 ================= */
.timeline{position:relative;padding-left:34px}
.timeline::before{
  content:"";position:absolute;left:7px;top:8px;bottom:8px;width:2px;
  background:linear-gradient(180deg,var(--brand),var(--line-strong));
}
.tl-item{position:relative;padding-bottom:32px}
.tl-item:last-child{padding-bottom:0}
.tl-item::before{
  content:"";position:absolute;left:-34px;top:8px;width:16px;height:16px;border-radius:50%;
  background:var(--surface);border:3px solid var(--brand);box-shadow:0 0 0 4px rgba(201,79,61,.12);
}
.tl-era{font-size:12.5px;font-weight:800;letter-spacing:1.8px;color:var(--gold);margin-bottom:8px}
.tl-item h3{font-size:18px;margin-bottom:8px}
.tl-item p{color:var(--ink-soft);font-size:15.2px;max-width:760px}

/* ================= 书写变体表 ================= */
.variant-wrap{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-lg);overflow:hidden;box-shadow:var(--shadow-sm)}
.variant-row{
  display:grid;grid-template-columns:200px 1fr 150px;gap:20px;align-items:center;
  padding:20px 26px;border-bottom:1px solid var(--line);
  transition:background .25s var(--ease);
}
.variant-row:last-child{border-bottom:0}
.variant-row:hover{background:var(--brand-soft)}
.variant-head{background:var(--bg-deep);font-size:13px;font-weight:800;letter-spacing:1.4px;color:var(--muted)}
.variant-head:hover{background:var(--bg-deep)}
.variant-name{font-weight:800;font-size:16.5px}
.variant-name em{display:block;font-style:normal;font-size:12.5px;color:var(--muted);font-weight:600;letter-spacing:1px;margin-top:4px}
.variant-desc{color:var(--ink-soft);font-size:15px}
.variant-level{text-align:right}
.variant-level .lv{font-weight:800;color:var(--brand)}
.variant-level .lv.mid{color:var(--gold)}
.variant-level .lv.low{color:var(--accent)}

/* ================= 语气光谱 ================= */
.spectrum{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}
.sp-col{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);
  overflow:hidden;box-shadow:var(--shadow-sm);
  transition:transform .3s var(--ease),box-shadow .3s var(--ease);
}
.sp-col:hover{transform:translateY(-5px);box-shadow:var(--shadow)}
.sp-bar{height:6px;background:var(--accent)}
.sp-col.l2 .sp-bar{background:var(--gold)}
.sp-col.l3 .sp-bar{background:#d97b52}
.sp-col.l4 .sp-bar{background:var(--brand)}
.sp-body{padding:24px 22px}
.sp-level{font-size:12.5px;font-weight:800;letter-spacing:1.8px;color:var(--muted)}
.sp-body h3{font-size:18px;margin:8px 0 10px}
.sp-body p{font-size:15px;color:var(--ink-soft);margin:0}
.sp-meter{margin-top:16px;display:flex;gap:5px}
.sp-meter i{height:5px;flex:1;border-radius:3px;background:var(--line-strong)}
.sp-col.l1 .sp-meter i:nth-child(-n+1),
.sp-col.l2 .sp-meter i:nth-child(-n+2),
.sp-col.l3 .sp-meter i:nth-child(-n+3),
.sp-col.l4 .sp-meter i{background:var(--brand)}

/* ================= 图文区块 ================= */
.feature{display:grid;grid-template-columns:1.05fr 1fr;gap:44px;align-items:center}
.feature-media{position:relative;border-radius:var(--radius-lg);overflow:hidden;box-shadow:var(--shadow-lg)}
.feature-media img{width:100%;height:420px;object-fit:cover;transition:transform .6s var(--ease)}
.feature-media:hover img{transform:scale(1.04)}
.feature-media::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,transparent 45%,rgba(20,24,36,.6));
}
.quote-list{display:grid;gap:16px;margin-top:26px}
.quote{
  background:var(--surface);border:1px solid var(--line);border-left:4px solid var(--brand);
  border-radius:var(--radius-sm);padding:20px 22px;box-shadow:var(--shadow-sm);
}
.quote p{font-size:15.5px;color:var(--ink-soft);margin:0}
.quote .who{display:block;margin-top:10px;font-size:13px;font-weight:700;color:var(--muted);letter-spacing:1px}

/* ================= FAQ ================= */
.faq-item{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);
  margin-bottom:14px;overflow:hidden;transition:box-shadow .3s var(--ease),border-color .3s var(--ease);
}
.faq-item:hover{box-shadow:var(--shadow-sm);border-color:var(--line-strong)}
.faq-item summary{
  cursor:pointer;padding:20px 24px;font-weight:700;font-size:16.5px;
  display:flex;align-items:center;justify-content:space-between;gap:16px;list-style:none;
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::after{
  content:"+";flex:none;width:26px;height:26px;border-radius:8px;display:grid;place-items:center;
  background:var(--brand-soft);color:var(--brand-dark);font-size:17px;font-weight:800;
  transition:transform .3s var(--ease),background .3s var(--ease);
}
.faq-item[open] summary::after{content:"−";transform:rotate(180deg)}
.faq-item[open]{box-shadow:var(--shadow-sm);border-color:var(--line-strong)}
.faq-body{padding:0 24px 22px;color:var(--ink-soft);font-size:15.3px}

/* ================= 频道矩阵 ================= */
.channel{
  display:block;position:relative;background:var(--surface);border:1px solid var(--line);
  border-radius:var(--radius-lg);padding:26px 24px;box-shadow:var(--shadow-sm);
  transition:transform .3s var(--ease),box-shadow .3s var(--ease),border-color .3s var(--ease);
}
.channel:hover{transform:translateY(-5px);box-shadow:var(--shadow);border-color:var(--brand)}
.channel .badge{margin-bottom:14px}
.channel h3{font-size:18.5px;margin-bottom:10px}
.channel p{color:var(--ink-soft);font-size:15px;margin-bottom:16px}
.channel .more{font-size:14px;font-weight:700;color:var(--brand);display:inline-flex;align-items:center;gap:6px}
.channel:hover .more{color:var(--brand-dark)}
.channel.current{border-color:var(--ink);background:linear-gradient(180deg,#fff, #fdfbfa)}
.channel.current .badge{background:var(--ink);color:#fff}

/* ================= 共建行动区 ================= */
.cta-panel{
  background:linear-gradient(118deg,var(--ink) 0%,#2c3346 58%,#3a2b28 100%);
  color:#fff;border-radius:var(--radius-lg);padding:52px 48px;
  display:grid;grid-template-columns:1.05fr 1fr;gap:44px;align-items:center;
  box-shadow:var(--shadow-lg);
}
.cta-panel h2{font-size:clamp(22px,3vw,30px);line-height:1.35}
.cta-panel p{color:#b9bccc;font-size:15.5px;margin-top:14px}
.cta-form{background:rgba(255,255,255,.07);border:1px solid rgba(255,255,255,.16);border-radius:var(--radius);padding:24px}
.field{margin-bottom:16px}
.field label{display:block;font-size:13px;font-weight:700;letter-spacing:1.2px;color:#cfd2dd;margin-bottom:8px}
.field input,.field textarea{
  width:100%;padding:12px 14px;border-radius:var(--radius-sm);
  background:rgba(255,255,255,.1);border:1px solid rgba(255,255,255,.22);color:#fff;
  transition:border-color .25s var(--ease),background .25s var(--ease);
}
.field input::placeholder,.field textarea::placeholder{color:rgba(255,255,255,.5)}
.field input:focus,.field textarea:focus{
  outline:none;border-color:var(--brand);background:rgba(255,255,255,.16);
}
.field textarea{min-height:96px;resize:vertical}
.cta-form .btn-primary{width:100%}
.cta-note{font-size:12.5px;color:#9ea2b4;margin-top:12px;text-align:center}

/* ================= 页脚 ================= */
.site-footer{background:#171b28;color:#b6bbc9;padding:64px 0 26px;margin-top:0}
.footer-top{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:36px}
.footer-brand{display:flex;align-items:center;gap:12px;margin-bottom:16px}
.footer-brand strong{color:#fff;font-size:18px;letter-spacing:.5px}
.footer-about{font-size:14.5px;line-height:1.85;color:#9ea3b3;max-width:340px;margin:0}
.footer-col h4{color:#fff;font-size:14px;letter-spacing:1.6px;margin-bottom:16px}
.footer-col ul li{margin-bottom:10px}
.footer-col a{font-size:14.5px;color:#a7acbb}
.footer-col a:hover{color:#fff}
.footer-bottom{
  margin-top:44px;padding-top:22px;border-top:1px solid rgba(255,255,255,.1);
  display:flex;flex-wrap:wrap;justify-content:space-between;gap:12px;
  font-size:13px;color:#838998;
}

/* ================= 响应式 ================= */
@media (max-width:1080px){
  .grid-4{grid-template-columns:repeat(2,1fr)}
  .spectrum{grid-template-columns:repeat(2,1fr)}
  .stat-strip{grid-template-columns:repeat(2,1fr)}
  .footer-top{grid-template-columns:1fr 1fr;gap:30px}
}
@media (max-width:980px){
  .main-nav{
    position:absolute;top:100%;left:0;right:0;display:none;
    background:var(--surface);border-bottom:1px solid var(--line);
    box-shadow:var(--shadow);padding:14px 24px 20px;
  }
  .nav-toggle:checked ~ .main-nav{display:block}
  .nav-toggle-label{display:block}
  .header-inner{position:relative}
  .main-nav ul{flex-direction:column;align-items:stretch;gap:4px}
  .main-nav a{padding:12px 14px;border-radius:var(--radius-sm)}
  .header-cta{display:none}
  .feature{grid-template-columns:1fr;gap:30px}
  .feature-media img{height:320px}
  .cta-panel{grid-template-columns:1fr;padding:38px 28px}
  .variant-row{grid-template-columns:170px 1fr 110px;gap:14px}
}
@media (max-width:768px){
  .section{padding:58px 0}
  .grid-2,.grid-3,.grid-4{grid-template-columns:1fr}
  .layer{grid-template-columns:1fr;gap:12px}
  .layer-key{border-right:0;border-left:3px solid var(--brand);padding:0 0 0 12px}
  .page-hero{padding:62px 0 54px}
  .timeline{padding-left:26px}
  .tl-item::before{left:-26px;width:14px;height:14px}
  .variant-row{grid-template-columns:1fr;gap:8px;padding:18px 20px}
  .variant-head{display:none}
  .variant-level{text-align:left}
  .footer-top{grid-template-columns:1fr;gap:26px}
  .spectrum{grid-template-columns:1fr}
}
@media (max-width:520px){
  .container{padding:0 18px}
  .stat-strip{grid-template-columns:1fr;padding:22px 20px;gap:14px}
  .page-hero h1{font-size:24px}
  .card{padding:22px 20px}
  .cta-panel{padding:30px 20px}
  .hero-actions .btn{width:100%}
  .footer-bottom{flex-direction:column}
}

/* roulang page: category2 */
:root{
 --ink:#1e2434;
 --ink-soft:#454d63;
 --muted:#7c8397;
 --line:#e5e2db;
 --line-strong:#d5d1c7;
 --bg:#f7f6f2;
 --bg-deep:#efede6;
 --surface:#ffffff;
 --brand:#c94f3d;
 --brand-dark:#a53a29;
 --brand-soft:#fbeeea;
 --accent:#1f6f63;
 --accent-soft:#e7f3f0;
 --gold:#b8873c;
 --gold-soft:#f8f1e4;
 --radius-lg:20px;
 --radius:14px;
 --radius-sm:9px;
 --shadow-sm:0 4px 14px rgba(30,36,52,.06);
 --shadow:0 12px 34px rgba(30,36,52,.09);
 --shadow-lg:0 22px 50px rgba(30,36,52,.15);
 --container:1180px;
 --gap:26px;
 --ease:cubic-bezier(.22,.7,.35,1);
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
 margin:0;
 font-family:"Noto Sans SC","PingFang SC","Hiragino Sans GB","Microsoft YaHei","Source Han Sans SC",sans-serif;
 font-size:16px;
 line-height:1.78;
 color:var(--ink);
 background:var(--bg);
 -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;height:auto}
a{color:inherit;text-decoration:none;transition:color .25s var(--ease)}
a:hover{color:var(--brand)}
h1,h2,h3,h4,p{margin:0}
ul,ol{list-style:none;margin:0;padding:0}
button,input,textarea,select{font:inherit;color:inherit}
:focus-visible{outline:2px solid var(--brand);outline-offset:3px;border-radius:4px}
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 24px}
.narrow{max-width:920px}
/* ---------- Header ---------- */
.site-header{
 position:sticky;top:0;z-index:60;
 background:rgba(247,246,242,.94);
 backdrop-filter:blur(12px);
 border-bottom:1px solid var(--line);
}
.header-inner{
 position:relative;
 display:flex;align-items:center;justify-content:space-between;
 gap:20px;min-height:72px;
}
.brand{display:flex;align-items:center;gap:12px}
.brand-mark{
 width:42px;height:42px;border-radius:12px;flex:none;
 background:linear-gradient(135deg,var(--brand),#e07a5f);
 color:#fff;display:grid;place-items:center;
 font-weight:800;font-size:17px;letter-spacing:.5px;
 box-shadow:0 8px 18px rgba(201,79,61,.28);
}
.brand-text{display:flex;flex-direction:column;line-height:1.2}
.brand-name{font-size:18px;font-weight:800;letter-spacing:.4px}
.brand-sub{font-size:11.5px;color:var(--muted);letter-spacing:2px}
.nav-toggle{display:none}
.nav-toggle-label{
 display:none;width:44px;height:44px;border-radius:12px;
 border:1px solid var(--line-strong);background:var(--surface);
 cursor:pointer;position:relative;
}
.nav-toggle-label span,
.nav-toggle-label span::before,
.nav-toggle-label span::after{
 content:"";position:absolute;left:50%;top:50%;width:18px;height:2px;
 background:var(--ink);border-radius:2px;transform:translate(-50%,-50%);
 transition:transform .3s var(--ease),opacity .3s var(--ease);
}
.nav-toggle-label span::before{top:-6px}
.nav-toggle-label span::after{top:6px}
.main-nav ul{display:flex;align-items:center;gap:6px}
.main-nav a{
 display:block;padding:9px 16px;border-radius:999px;
 font-size:15px;font-weight:600;color:var(--ink-soft);
}
.main-nav a:hover{background:var(--brand-soft);color:var(--brand-dark)}
.main-nav a.active{background:var(--ink);color:#fff}
.header-cta{
 display:inline-flex;align-items:center;gap:8px;
 padding:10px 20px;border-radius:999px;
 background:var(--brand);color:#fff;font-weight:700;font-size:14.5px;
 box-shadow:0 10px 22px rgba(201,79,61,.26);
 transition:transform .25s var(--ease),box-shadow .25s var(--ease),background .25s var(--ease);
}
.header-cta:hover{background:var(--brand-dark);color:#fff;transform:translateY(-2px);box-shadow:0 16px 30px rgba(201,79,61,.32)}
/* ---------- Buttons ---------- */
.btn{
 display:inline-flex;align-items:center;justify-content:center;gap:9px;
 padding:13px 26px;border-radius:999px;border:1px solid transparent;
 font-weight:700;font-size:15px;cursor:pointer;
 transition:transform .25s var(--ease),box-shadow .25s var(--ease),background .25s var(--ease),color .25s var(--ease),border-color .25s var(--ease);
}
.btn-primary{background:var(--brand);color:#fff;box-shadow:0 12px 26px rgba(201,79,61,.28)}
.btn-primary:hover{background:var(--brand-dark);color:#fff;transform:translateY(-2px);box-shadow:0 18px 34px rgba(201,79,61,.34)}
.btn-ghost{background:rgba(255,255,255,.14);color:#fff;border-color:rgba(255,255,255,.5)}
.btn-ghost:hover{background:#fff;color:var(--ink);transform:translateY(-2px)}
.btn-line{background:var(--surface);color:var(--ink);border-color:var(--line-strong)}
.btn-line:hover{border-color:var(--brand);color:var(--brand);transform:translateY(-2px);box-shadow:var(--shadow-sm)}
.btn:active{transform:translateY(0) scale(.99)}
/* ---------- Badges & tags ---------- */
.badge{
 display:inline-flex;align-items:center;gap:6px;
 padding:5px 13px;border-radius:999px;
 font-size:12.5px;font-weight:700;letter-spacing:.4px;
 background:var(--accent-soft);color:var(--accent);
}
.badge-brand{background:var(--brand-soft);color:var(--brand-dark)}
.badge-gold{background:var(--gold-soft);color:var(--gold)}
.tag-row{display:flex;flex-wrap:wrap;gap:10px}
.tag{
 display:inline-block;padding:6px 14px;border-radius:999px;
 background:var(--surface);border:1px solid var(--line-strong);
 font-size:13px;color:var(--ink-soft);
 transition:all .25s var(--ease);
}
.tag:hover{border-color:var(--brand);color:var(--brand);background:var(--brand-soft)}
/* ---------- Section basics ---------- */
.section{padding:76px 0}
.section-alt{background:var(--bg-deep)}
.section-dark{background:var(--ink);color:#e9eaf0}
.section-head{max-width:780px;margin-bottom:40px}
.section-head.center{margin-left:auto;margin-right:auto;text-align:center}
.eyebrow{
 display:inline-flex;align-items:center;gap:8px;
 font-size:12.5px;font-weight:800;letter-spacing:2.4px;
 color:var(--brand);margin-bottom:14px;
}
.eyebrow::before{content:"";width:22px;height:2px;background:var(--brand);border-radius:2px}
.section-dark .eyebrow{color:#f0a894}
.section-dark .eyebrow::before{background:#f0a894}
.section-title{font-size:clamp(23px,3vw,32px);line-height:1.35;font-weight:800;letter-spacing:-.3px}
.section-desc{margin-top:14px;color:var(--muted);font-size:16px}
.section-dark .section-desc{color:#a9aebf}
/* ---------- Page banner ---------- */
.page-banner{
 position:relative;
 padding:56px 0 64px;
 color:#fff;
 background-image:linear-gradient(110deg,rgba(20,24,36,.95) 0%,rgba(20,24,36,.82) 48%,rgba(20,24,36,.55) 100%),url("/assets/images/65d43ab32bd04ad5.webp");
 background-size:cover;
 background-position:center;
}
.breadcrumb{display:flex;flex-wrap:wrap;gap:8px;align-items:center;font-size:13px;color:rgba(255,255,255,.62);margin-bottom:18px}
.breadcrumb a{color:rgba(255,255,255,.8)}
.breadcrumb a:hover{color:#fff}
.breadcrumb span.sep{opacity:.5}
.banner-grid{display:grid;grid-template-columns:minmax(0,1.18fr) minmax(0,.82fr);gap:46px;align-items:center}
.banner-title{font-size:clamp(26px,3.6vw,40px);line-height:1.32;font-weight:800;letter-spacing:-.6px}
.banner-lead{margin-top:18px;font-size:16.5px;color:rgba(255,255,255,.82);max-width:640px}
.banner-tags{margin-top:24px}
.banner-tags .tag{background:rgba(255,255,255,.12);border-color:rgba(255,255,255,.3);color:#fff}
.banner-tags .tag:hover{background:#fff;color:var(--ink);border-color:#fff}
.banner-stats{
 display:grid;grid-template-columns:repeat(3,minmax(0,1fr));
 gap:14px;margin-top:30px;padding-top:26px;
 border-top:1px solid rgba(255,255,255,.16);
}
.banner-stats strong{display:block;font-size:26px;font-weight:800;color:#fff;line-height:1.2}
.banner-stats span{display:block;font-size:13px;color:rgba(255,255,255,.62);margin-top:4px}
.banner-media{
 border-radius:var(--radius-lg);overflow:hidden;
 border:1px solid rgba(255,255,255,.18);
 box-shadow:var(--shadow-lg);
}
.banner-media img{width:100%;aspect-ratio:4/3;object-fit:cover}
/* ---------- Cards ---------- */
.grid{display:grid;gap:var(--gap)}
.grid-3{grid-template-columns:repeat(3,minmax(0,1fr))}
.grid-2{grid-template-columns:repeat(2,minmax(0,1fr))}
.card{
 background:var(--surface);
 border:1px solid var(--line);
 border-radius:var(--radius-lg);
 box-shadow:var(--shadow-sm);
 overflow:hidden;
 transition:transform .3s var(--ease),box-shadow .3s var(--ease),border-color .3s var(--ease);
 display:flex;flex-direction:column;
}
.card:hover{transform:translateY(-6px);box-shadow:var(--shadow);border-color:var(--line-strong)}
.card-media{position:relative;overflow:hidden}
.card-media img{width:100%;aspect-ratio:16/10;object-fit:cover;transition:transform .5s var(--ease)}
.card:hover .card-media img{transform:scale(1.05)}
.card-body{padding:24px 24px 26px;display:flex;flex-direction:column;gap:12px;flex:1}
.card-title{font-size:18.5px;font-weight:800;line-height:1.45}
.card-text{font-size:14.6px;color:var(--muted);line-height:1.8}
.card-index{
 display:inline-flex;align-items:center;justify-content:center;
 width:34px;height:34px;border-radius:10px;flex:none;
 background:var(--brand-soft);color:var(--brand-dark);
 font-weight:800;font-size:14px;
}
.card-head{display:flex;align-items:center;gap:12px}
/* ---------- Factor cards ---------- */
.factor{
 background:var(--surface);border:1px solid var(--line);
 border-radius:var(--radius-lg);padding:30px 28px;
 box-shadow:var(--shadow-sm);
 transition:transform .3s var(--ease),box-shadow .3s var(--ease);
}
.factor:hover{transform:translateY(-6px);box-shadow:var(--shadow)}
.factor .badge{margin-bottom:16px}
.factor h3{font-size:19px;font-weight:800;margin-bottom:12px}
.factor p{font-size:14.8px;color:var(--muted)}
.factor ul{margin-top:16px;display:flex;flex-direction:column;gap:9px}
.factor li{position:relative;padding-left:18px;font-size:14.2px;color:var(--ink-soft)}
.factor li::before{content:"";position:absolute;left:0;top:10px;width:7px;height:7px;border-radius:50%;background:var(--accent)}
/* ---------- Intensity levels ---------- */
.level-list{border-top:1px solid var(--line)}
.level-item{
 display:grid;grid-template-columns:150px minmax(0,1fr);
 gap:26px;align-items:start;padding:26px 0;
 border-bottom:1px solid var(--line);
}
.level-no{font-size:13px;font-weight:800;letter-spacing:1.6px;color:var(--brand)}
.level-name{font-size:17px;font-weight:800;margin-top:4px}
.level-bar{height:7px;border-radius:7px;background:var(--bg-deep);overflow:hidden;margin:12px 0 14px}
.level-bar i{display:block;height:100%;border-radius:7px;background:linear-gradient(90deg,var(--brand),#e0805f)}
.lv1 i{width:20%}
.lv2 i{width:40%}
.lv3 i{width:60%}
.lv4 i{width:80%}
.lv5 i{width:100%}
.level-item p{font-size:14.6px;color:var(--muted)}
.level-item .tag-row{margin-top:14px}
/* ---------- Dialog examples ---------- */
.dialog-item{
 background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-lg);
 padding:28px;box-shadow:var(--shadow-sm);
 transition:transform .3s var(--ease),box-shadow .3s var(--ease);
}
.dialog-item:hover{transform:translateY(-5px);box-shadow:var(--shadow)}
.dialog-quote{
 font-size:16px;font-weight:700;line-height:1.75;color:var(--ink);
 padding:16px 18px;border-left:3px solid var(--brand);
 background:var(--brand-soft);border-radius:0 var(--radius-sm) var(--radius-sm) 0;
}
.dialog-meta{display:flex;flex-wrap:wrap;gap:22px;margin-top:20px}
.dialog-meta div{font-size:14px;color:var(--muted)}
.dialog-meta b{display:block;color:var(--ink);font-size:13px;letter-spacing:1px;margin-bottom:4px;font-weight:800}
/* ---------- Compare ---------- */
.compare{
 background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-lg);
 padding:30px 28px;box-shadow:var(--shadow-sm);height:100%;
}
.compare.ok{border-top:4px solid var(--accent)}
.compare.no{border-top:4px solid var(--brand)}
.compare h3{font-size:19px;font-weight:800;margin-bottom:18px}
.compare ul{display:flex;flex-direction:column;gap:14px}
.compare li{position:relative;padding-left:26px;font-size:15px;color:var(--ink-soft);line-height:1.75}
.compare.ok li::before{
 content:"✓";position:absolute;left:0;top:1px;color:var(--accent);font-weight:800;
}
.compare.no li::before{
 content:"!";position:absolute;left:0;top:1px;color:var(--brand);font-weight:800;
}
/* ---------- Channels ---------- */
.channel-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:20px}
.channel{
 display:block;background:var(--surface);border:1px solid var(--line);
 border-radius:var(--radius);padding:24px 22px;
 box-shadow:var(--shadow-sm);
 transition:transform .3s var(--ease),box-shadow .3s var(--ease),border-color .3s var(--ease);
}
.channel:hover{transform:translateY(-6px);box-shadow:var(--shadow);border-color:var(--brand)}
.channel .badge{margin-bottom:14px}
.channel h3{font-size:17px;font-weight:800;margin-bottom:8px}
.channel p{font-size:14px;color:var(--muted)}
.channel.current{border-color:var(--brand);box-shadow:0 14px 30px rgba(201,79,61,.14)}
/* ---------- FAQ ---------- */
.faq-list{display:grid;gap:16px}
.faq-item{
 background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);
 padding:0;overflow:hidden;box-shadow:var(--shadow-sm);
 transition:border-color .3s var(--ease),box-shadow .3s var(--ease);
}
.faq-item[open]{border-color:var(--line-strong);box-shadow:var(--shadow)}
.faq-item summary{
 list-style:none;cursor:pointer;padding:20px 24px;
 display:flex;align-items:center;justify-content:space-between;gap:18px;
 font-size:16.5px;font-weight:700;
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::after{
 content:"+";font-size:20px;color:var(--brand);font-weight:700;line-height:1;flex:none;
 transition:transform .3s var(--ease);
}
.faq-item[open] summary::after{transform:rotate(45deg)}
.faq-item summary:hover{color:var(--brand-dark)}
.faq-answer{padding:0 24px 22px;font-size:14.8px;color:var(--muted);line-height:1.85}
/* ---------- CTA ---------- */
.cta-wrap{display:grid;grid-template-columns:minmax(0,1.25fr) minmax(0,.75fr);gap:44px;align-items:center}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:28px}
.cta-card{
 background:rgba(255,255,255,.06);
 border:1px solid rgba(255,255,255,.16);
 border-radius:var(--radius-lg);
 padding:28px 26px;
}
.cta-card h3{font-size:16px;font-weight:800;color:#fff;margin-bottom:18px;letter-spacing:.5px}
.cta-card ul{display:flex;flex-direction:column;gap:16px}
.cta-card li{font-size:14.4px;color:#a9aebf;padding-left:20px;position:relative;line-height:1.7}
.cta-card li::before{content:"";position:absolute;left:0;top:9px;width:8px;height:8px;border-radius:50%;background:#f0a894}
.cta-card li b{color:#fff;display:block;font-size:14.6px;margin-bottom:2px}
/* ---------- Footer ---------- */
.site-footer{background:#181d2b;color:#b9becd;padding:60px 0 0;margin-top:0}
.footer-top{
 display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:38px;
 padding-bottom:42px;border-bottom:1px solid rgba(255,255,255,.1);
}
.footer-brand{display:flex;align-items:center;gap:12px;color:#fff;font-size:17px;margin-bottom:16px}
.footer-brand .brand-mark{width:36px;height:36px;border-radius:10px;font-size:15px}
.footer-about{font-size:14px;line-height:1.85;color:#8f95a8;max-width:350px}
.footer-col h4{color:#fff;font-size:15px;margin-bottom:16px;font-weight:800;letter-spacing:.6px}
.footer-col ul{display:flex;flex-direction:column;gap:10px}
.footer-col a{font-size:14px;color:#9aa0b3}
.footer-col a:hover{color:#f0a894}
.footer-bottom{
 display:flex;flex-wrap:wrap;justify-content:space-between;gap:14px;
 padding:22px 0;font-size:13px;color:#7b8194;
}
/* ---------- Responsive ---------- */
@media (max-width:1024px){
 .banner-grid{grid-template-columns:1fr;gap:32px}
 .grid-3{grid-template-columns:repeat(2,minmax(0,1fr))}
 .channel-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
 .cta-wrap{grid-template-columns:1fr;gap:32px}
 .footer-top{grid-template-columns:1fr 1fr;gap:30px}
 .footer-about{max-width:none}
}
@media (max-width:920px){
 .nav-toggle-label{display:block}
 .main-nav{
  position:absolute;left:0;right:0;top:100%;
  background:var(--surface);border-bottom:1px solid var(--line);
  box-shadow:var(--shadow);
  max-height:0;overflow:hidden;
  transition:max-height .38s var(--ease);
 }
 .nav-toggle:checked ~ .main-nav{max-height:460px}
 .main-nav ul{flex-direction:column;align-items:stretch;gap:2px;padding:12px 16px 18px}
 .main-nav a{padding:12px 14px;border-radius:12px;font-size:15.5px}
 .header-cta{display:none}
}
@media (max-width:768px){
 .section{padding:56px 0}
 .page-banner{padding:40px 0 52px}
 .banner-stats{grid-template-columns:1fr 1fr;gap:18px}
 .grid-3,.grid-2{grid-template-columns:1fr}
 .level-item{grid-template-columns:1fr;gap:12px}
 .channel-grid{grid-template-columns:1fr}
 .card-body{padding:20px 20px 22px}
 .factor,.compare,.dialog-item{padding:24px 20px}
 .faq-item summary{padding:17px 18px;font-size:15.5px}
 .faq-answer{padding:0 18px 20px}
 .footer-top{grid-template-columns:1fr;gap:26px;padding-bottom:32px}
}
@media (max-width:520px){
 .container{padding:0 18px}
 .header-inner{min-height:64px}
 .brand-mark{width:38px;height:38px;font-size:15px}
 .brand-name{font-size:16.5px}
 .brand-sub{letter-spacing:1.2px;font-size:11px}
 .banner-title{font-size:23px}
 .banner-lead{font-size:15.4px}
 .banner-stats{grid-template-columns:1fr}
 .btn{width:100%;padding:12px 20px}
 .cta-actions{flex-direction:column;align-items:stretch}
}

/* roulang page: category3 */
/* ============ roulang design system : bianjieliyi ============ */
:root{
  --ink:#1e2434;
  --ink-soft:#454d63;
  --muted:#7c8397;
  --line:#e5e2db;
  --line-strong:#d5d1c7;
  --bg:#f7f6f2;
  --bg-deep:#efedE6;
  --surface:#ffffff;
  --brand:#c94f3d;
  --brand-dark:#a53a29;
  --brand-soft:#fbeeea;
  --accent:#1f6f63;
  --accent-soft:#e7f3f0;
  --gold:#b8873c;
  --gold-soft:#f8f1e4;
  --radius-lg:20px;
  --radius:14px;
  --radius-sm:9px;
  --shadow-sm:0 4px 14px rgba(30,36,52,.06);
  --shadow:0 12px 34px rgba(30,36,52,.09);
  --shadow-lg:0 22px 50px rgba(30,36,52,.15);
  --container:1180px;
  --gap:26px;
  --ease:cubic-bezier(.22,.7,.35,1);
}
*,
*::before,
*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:"Noto Sans SC","PingFang SC","Hiragino Sans GB","Microsoft YaHei","Source Han Sans SC",sans-serif;
  font-size:16px;
  line-height:1.78;
  color:var(--ink);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4,h5,p,figure,blockquote{margin:0}
ul,ol{margin:0;padding:0;list-style:none}
img{max-width:100%;display:block;height:auto}
a{color:inherit;text-decoration:none;transition:color .25s var(--ease)}
a:hover{color:var(--brand)}
button,input,textarea,select{font:inherit;color:inherit}
:focus-visible{outline:3px solid rgba(201,79,61,.45);outline-offset:2px;border-radius:6px}
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 24px}

/* ---------- Header ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(247,246,242,.92);
  backdrop-filter:blur(12px);
  border-bottom:1px solid var(--line);
}
.header-inner{
  display:flex;align-items:center;justify-content:space-between;
  gap:20px;min-height:72px;
}
.brand{display:flex;align-items:center;gap:12px}
.brand-mark{
  width:42px;height:42px;border-radius:12px;flex:none;
  background:linear-gradient(135deg,var(--brand),#e07a5f);
  color:#fff;display:grid;place-items:center;
  font-weight:800;font-size:17px;letter-spacing:.5px;
  box-shadow:0 8px 18px rgba(201,79,61,.28);
}
.brand-text{display:flex;flex-direction:column;line-height:1.2}
.brand-name{font-size:18px;font-weight:800;letter-spacing:.4px}
.brand-sub{font-size:11.5px;color:var(--muted);letter-spacing:2px}
.nav-toggle{display:none}
.nav-toggle-label{
  display:none;width:44px;height:44px;border-radius:12px;
  border:1px solid var(--line-strong);background:var(--surface);
  cursor:pointer;position:relative;
}
.nav-toggle-label span,
.nav-toggle-label span::before,
.nav-toggle-label span::after{
  content:"";position:absolute;left:50%;top:50%;width:18px;height:2px;
  background:var(--ink);border-radius:2px;transform:translate(-50%,-50%);
  transition:transform .3s var(--ease),opacity .3s var(--ease);
}
.nav-toggle-label span::before{top:-6px}
.nav-toggle-label span::after{top:6px}
.main-nav ul{display:flex;align-items:center;gap:6px}
.main-nav a{
  display:block;padding:9px 16px;border-radius:999px;
  font-size:15px;font-weight:600;color:var(--ink-soft);
}
.main-nav a:hover{background:var(--brand-soft);color:var(--brand-dark)}
.main-nav a.active{background:var(--ink);color:#fff}
.header-cta{
  display:inline-flex;align-items:center;gap:8px;
  padding:10px 20px;border-radius:999px;
  background:var(--brand);color:#fff;font-weight:700;font-size:14.5px;
  box-shadow:0 10px 22px rgba(201,79,61,.26);
  transition:transform .25s var(--ease),box-shadow .25s var(--ease),background .25s var(--ease);
}
.header-cta:hover{background:var(--brand-dark);color:#fff;transform:translateY(-2px);box-shadow:0 16px 30px rgba(201,79,61,.32)}

/* ---------- Buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:9px;
  padding:13px 26px;border-radius:999px;border:1px solid transparent;
  font-weight:700;font-size:15px;cursor:pointer;
  transition:transform .25s var(--ease),box-shadow .25s var(--ease),background .25s var(--ease),color .25s var(--ease),border-color .25s var(--ease);
}
.btn-primary{background:var(--brand);color:#fff;box-shadow:0 12px 26px rgba(201,79,61,.28)}
.btn-primary:hover{background:var(--brand-dark);color:#fff;transform:translateY(-2px);box-shadow:0 18px 34px rgba(201,79,61,.34)}
.btn-ghost{background:rgba(255,255,255,.14);color:#fff;border-color:rgba(255,255,255,.5)}
.btn-ghost:hover{background:#fff;color:var(--ink);transform:translateY(-2px)}
.btn-line{background:var(--surface);color:var(--ink);border-color:var(--line-strong)}
.btn-line:hover{border-color:var(--brand);color:var(--brand);transform:translateY(-2px);box-shadow:var(--shadow-sm)}
.btn:active{transform:translateY(0) scale(.99)}

/* ---------- Badges & tags ---------- */
.badge{
  display:inline-flex;align-items:center;gap:6px;
  padding:5px 13px;border-radius:999px;
  font-size:12.5px;font-weight:700;letter-spacing:.4px;
  background:var(--accent-soft);color:var(--accent);
}
.badge-brand{background:var(--brand-soft);color:var(--brand-dark)}
.badge-gold{background:var(--gold-soft);color:var(--gold)}
.tag-row{display:flex;flex-wrap:wrap;gap:10px}
.tag{
  display:inline-block;padding:6px 14px;border-radius:999px;
  background:var(--surface);border:1px solid var(--line-strong);
  font-size:13px;color:var(--ink-soft);
  transition:all .25s var(--ease);
}
.tag:hover{border-color:var(--brand);color:var(--brand);background:var(--brand-soft)}

/* ---------- Sections ---------- */
.section{padding:76px 0}
.section-alt{background:var(--bg-deep)}
.section-dark{background:var(--ink);color:#e9eaf0}
.section-head{max-width:780px;margin-bottom:40px}
.section-head.center{margin-left:auto;margin-right:auto;text-align:center}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:12.5px;font-weight:800;letter-spacing:2.4px;
  text-transform:uppercase;color:var(--brand);margin-bottom:14px;
}
.eyebrow::before{content:"";width:22px;height:2px;background:var(--brand);border-radius:2px}
.section-dark .eyebrow{color:#f0a894}
.section-dark .eyebrow::before{background:#f0a894}
h2.section-title{font-size:clamp(23px,3vw,32px);line-height:1.35;font-weight:800;letter-spacing:-.3px}
.section-desc{margin-top:14px;color:var(--muted);font-size:16px}
.section-dark .section-desc{color:#a9aebf}

/* ---------- Page hero (inner banner) ---------- */
.page-hero{
  position:relative;
  padding:78px 0 84px;
  color:#fff;
  background-image:linear-gradient(112deg,rgba(22,26,38,.94) 0%,rgba(22,26,38,.83) 48%,rgba(22,26,38,.56) 100%),url("/assets/images/e4e3ec701175e03a.webp");
  background-size:cover;
  background-position:center;
  overflow:hidden;
}
.page-hero::after{
  content:"";position:absolute;right:-90px;top:-70px;width:340px;height:340px;
  border-radius:50%;background:radial-gradient(circle,rgba(201,79,61,.42),transparent 68%);
  pointer-events:none;
}
.page-hero .container{position:relative;z-index:2}
.crumb{
  display:flex;align-items:center;gap:9px;flex-wrap:wrap;
  font-size:13.5px;color:#c6cad8;margin-bottom:22px;
}
.crumb a{color:#e6e8f0}
.crumb a:hover{color:#f0a894}
.crumb span.sep{opacity:.5}
.page-hero h1{
  font-size:clamp(26px,4.1vw,44px);
  line-height:1.28;font-weight:800;letter-spacing:-.6px;max-width:860px;
}
.page-hero .lede{
  margin-top:20px;max-width:770px;font-size:16.5px;color:#cfd3e0;
}
.hero-tags{margin-top:26px}
.hero-tags .tag{background:rgba(255,255,255,.1);border-color:rgba(255,255,255,.28);color:#e9ebf3}
.hero-tags .tag:hover{background:rgba(255,255,255,.2);color:#fff;border-color:rgba(255,255,255,.5)}
.stat-strip{
  margin-top:38px;
  display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:18px;
}
.stat-item{
  background:rgba(255,255,255,.08);
  border:1px solid rgba(255,255,255,.16);
  border-radius:var(--radius);
  padding:18px 20px;
  backdrop-filter:blur(4px);
}
.stat-item strong{display:block;font-size:24px;font-weight:800;color:#fff;letter-spacing:-.4px}
.stat-item span{font-size:13px;color:#b9bfd0}

/* ---------- Generic card grid ---------- */
.grid-3{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:var(--gap)}
.grid-2{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:var(--gap)}
.card{
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--radius-lg);
  padding:30px 28px;
  box-shadow:var(--shadow-sm);
  transition:transform .3s var(--ease),box-shadow .3s var(--ease),border-color .3s var(--ease);
}
.card:hover{transform:translateY(-5px);box-shadow:var(--shadow);border-color:var(--line-strong)}
.card h3{font-size:19px;font-weight:800;margin-bottom:12px;letter-spacing:-.2px}
.card p{color:var(--ink-soft);font-size:15px}
.card-icon{
  width:48px;height:48px;border-radius:14px;display:grid;place-items:center;
  font-weight:800;font-size:18px;margin-bottom:18px;
  background:var(--brand-soft);color:var(--brand-dark);
}
.card-icon.green{background:var(--accent-soft);color:var(--accent)}
.card-icon.gold{background:var(--gold-soft);color:var(--gold)}
.card .mini-list{margin-top:16px;display:grid;gap:8px}
.card .mini-list li{
  font-size:14px;color:var(--ink-soft);padding-left:16px;position:relative;
}
.card .mini-list li::before{
  content:"";position:absolute;left:0;top:11px;width:6px;height:6px;border-radius:50%;
  background:var(--brand);opacity:.7;
}

/* ---------- Signal columns (场合红绿灯) ---------- */
.signal-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:var(--gap)}
.signal-col{
  border-radius:var(--radius-lg);
  background:var(--surface);
  border:1px solid var(--line);
  overflow:hidden;
  box-shadow:var(--shadow-sm);
  transition:transform .3s var(--ease),box-shadow .3s var(--ease);
}
.signal-col:hover{transform:translateY(-5px);box-shadow:var(--shadow)}
.signal-head{padding:22px 26px;border-bottom:1px solid var(--line)}
.signal-head .dot{
  display:inline-block;width:10px;height:10px;border-radius:50%;margin-right:9px;
  vertical-align:middle;
}
.signal-col.safe .signal-head{background:var(--accent-soft)}
.signal-col.safe .dot{background:var(--accent)}
.signal-col.warn .signal-head{background:var(--gold-soft)}
.signal-col.warn .dot{background:var(--gold)}
.signal-col.stop .signal-head{background:var(--brand-soft)}
.signal-col.stop .dot{background:var(--brand)}
.signal-head h3{font-size:18px;font-weight:800;display:inline-block}
.signal-head p{font-size:13.5px;color:var(--ink-soft);margin-top:6px}
.signal-col ul{padding:22px 26px 26px;display:grid;gap:14px}
.signal-col li{font-size:14.8px;color:var(--ink-soft);line-height:1.72}
.signal-col li strong{display:block;color:var(--ink);font-size:15px;font-weight:700}

/* ---------- Compare list (关系距离对照) ---------- */
.compare-list{display:grid;gap:14px}
.compare-row{
  display:grid;grid-template-columns:.85fr 1.6fr 1.15fr;
  gap:20px;align-items:center;
  background:var(--surface);
  border:1px solid var(--line);
  border-left:4px solid var(--accent);
  border-radius:var(--radius);
  padding:20px 24px;
  box-shadow:var(--shadow-sm);
  transition:transform .28s var(--ease),box-shadow .28s var(--ease),border-color .28s var(--ease);
}
.compare-row:hover{transform:translateX(4px);box-shadow:var(--shadow);border-left-color:var(--brand)}
.compare-row .rel{font-weight:800;font-size:16px}
.compare-row .rel small{display:block;font-weight:600;font-size:12.5px;color:var(--muted);letter-spacing:.5px;margin-top:3px}
.compare-row .note{font-size:14.6px;color:var(--ink-soft)}
.compare-row .advice{font-size:14.6px;color:var(--accent);font-weight:600}

/* ---------- Ladder (语气强度四档) ---------- */
.ladder{display:grid;gap:16px;counter-reset:step}
.ladder-item{
  position:relative;
  display:grid;grid-template-columns:76px 1fr;
  gap:22px;align-items:start;
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--radius);
  padding:24px 26px;
  box-shadow:var(--shadow-sm);
  transition:transform .28s var(--ease),box-shadow .28s var(--ease);
}
.ladder-item:hover{transform:translateY(-4px);box-shadow:var(--shadow)}
.ladder-item .rank{
  width:56px;height:56px;border-radius:16px;display:grid;place-items:center;
  font-size:20px;font-weight:800;color:#fff;
  background:linear-gradient(135deg,var(--accent),#3c9d8d);
}
.ladder-item.l2 .rank{background:linear-gradient(135deg,#4b7f9c,#6ea6c2)}
.ladder-item.l3 .rank{background:linear-gradient(135deg,var(--gold),#d4a95f)}
.ladder-item.l4 .rank{background:linear-gradient(135deg,var(--brand),#e07a5f)}
.ladder-item h3{font-size:18px;font-weight:800;margin-bottom:8px}
.ladder-item p{font-size:14.8px;color:var(--ink-soft)}
.ladder-item .meta{margin-top:12px;font-size:13px;color:var(--muted)}
.ladder-item .meta b{color:var(--ink);font-weight:700}

/* ---------- Switch list (替代表达) ---------- */
.switch-list{display:grid;gap:12px}
.switch-item{
  display:grid;grid-template-columns:1fr 46px 1fr;
  gap:16px;align-items:center;
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--radius);
  padding:18px 22px;
  box-shadow:var(--shadow-sm);
  transition:border-color .28s var(--ease),transform .28s var(--ease),box-shadow .28s var(--ease);
}
.switch-item:hover{border-color:var(--line-strong);transform:translateY(-3px);box-shadow:var(--shadow)}
.switch-item .from{font-size:15px;color:var(--muted);text-decoration:line-through;text-decoration-color:rgba(124,131,151,.5)}
.switch-item .arrow{
  width:34px;height:34px;border-radius:50%;display:grid;place-items:center;
  background:var(--brand-soft);color:var(--brand-dark);font-weight:800;font-size:15px;
}
.switch-item .to{font-size:15.3px;font-weight:700;color:var(--ink)}
.switch-item .to small{display:block;font-weight:500;font-size:13px;color:var(--muted);margin-top:4px}

/* ---------- Channel grid ---------- */
.channel-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:var(--gap)}
.channel-card{
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--radius-lg);
  padding:26px 24px;
  box-shadow:var(--shadow-sm);
  transition:transform .3s var(--ease),box-shadow .3s var(--ease);
}
.channel-card:hover{transform:translateY(-5px);box-shadow:var(--shadow)}
.channel-card h3{font-size:17px;font-weight:800;margin:14px 0 10px}
.channel-card p{font-size:14.6px;color:var(--ink-soft)}
.channel-card .badge{margin-bottom:4px}

/* ---------- Case / review ---------- */
.case-wrap{display:grid;grid-template-columns:1.05fr 1fr;gap:44px;align-items:center}
.case-media{
  border-radius:var(--radius-lg);overflow:hidden;
  box-shadow:var(--shadow-lg);border:1px solid var(--line);
}
.case-media img{width:100%;height:100%;object-fit:cover;aspect-ratio:4/3;transition:transform .5s var(--ease)}
.case-media:hover img{transform:scale(1.04)}
.case-list{display:grid;gap:18px}
.case-list li{
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--radius);
  padding:20px 22px;
  box-shadow:var(--shadow-sm);
  transition:border-color .28s var(--ease),box-shadow .28s var(--ease);
}
.case-list li:hover{border-color:var(--line-strong);box-shadow:var(--shadow)}
.case-list h4{font-size:16px;font-weight:800;margin-bottom:8px}
.case-list p{font-size:14.5px;color:var(--ink-soft)}

/* ---------- FAQ ---------- */
.faq-list{display:grid;gap:14px;max-width:920px;margin:0 auto}
.faq-item{
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--radius);
  box-shadow:var(--shadow-sm);
  overflow:hidden;
  transition:border-color .28s var(--ease),box-shadow .28s var(--ease);
}
.faq-item:hover{border-color:var(--line-strong);box-shadow:var(--shadow)}
.faq-item summary{
  cursor:pointer;list-style:none;
  padding:20px 26px;
  font-size:16.5px;font-weight:700;
  display:flex;align-items:center;justify-content:space-between;gap:16px;
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::after{
  content:"+";font-size:22px;font-weight:600;color:var(--brand);
  transition:transform .3s var(--ease);
  line-height:1;
}
.faq-item[open] summary::after{transform:rotate(45deg)}
.faq-body{padding:0 26px 24px;color:var(--ink-soft);font-size:15px}

/* ---------- CTA band ---------- */
.cta-band{
  position:relative;
  border-radius:var(--radius-lg);
  padding:56px 48px;
  color:#fff;
  background-image:linear-gradient(112deg,rgba(30,36,52,.94),rgba(30,36,52,.72)),url("/assets/images/2fb0f84e7d3cd85c.jpg");
  background-size:cover;background-position:center;
  overflow:hidden;
  box-shadow:var(--shadow-lg);
}
.cta-band h2{font-size:clamp(22px,2.8vw,30px);font-weight:800;letter-spacing:-.3px;max-width:640px}
.cta-band p{margin-top:14px;color:#c6cad8;max-width:640px;font-size:15.5px}
.cta-form{
  margin-top:30px;
  display:grid;grid-template-columns:1fr 1fr auto;gap:14px;
  max-width:760px;
}
.cta-form input{
  width:100%;
  padding:13px 18px;
  border-radius:999px;
  border:1px solid rgba(255,255,255,.3);
  background:rgba(255,255,255,.12);
  color:#fff;
  font-size:14.5px;
  transition:border-color .25s var(--ease),background .25s var(--ease);
}
.cta-form input::placeholder{color:rgba(255,255,255,.6)}
.cta-form input:focus{outline:none;border-color:#fff;background:rgba(255,255,255,.2)}
.form-note{margin-top:14px;font-size:13.5px;color:#9fa5b8}

/* ---------- Footer ---------- */
.site-footer{
  background:#171b28;color:#a9aebf;
  padding:66px 0 28px;
  margin-top:0;
}
.footer-top{
  display:grid;grid-template-columns:1.7fr 1fr 1fr 1fr;gap:36px;
}
.footer-brand{display:flex;align-items:center;gap:11px;color:#fff;font-size:18px;font-weight:800}
.footer-brand .brand-mark{width:38px;height:38px;border-radius:11px;font-size:16px}
.footer-about{margin-top:16px;font-size:14.5px;color:#8f95a9;max-width:400px;line-height:1.8}
.footer-col h4{color:#fff;font-size:15px;font-weight:800;margin-bottom:16px;letter-spacing:.3px}
.footer-col ul{display:grid;gap:10px}
.footer-col a{font-size:14.5px;color:#a9aebf}
.footer-col a:hover{color:#fff}
.footer-bottom{
  margin-top:46px;padding-top:22px;
  border-top:1px solid rgba(255,255,255,.1);
  display:flex;justify-content:space-between;gap:14px;flex-wrap:wrap;
  font-size:13.5px;color:#8b91a5;
}

/* ---------- Responsive ---------- */
@media (max-width:1024px){
  .section{padding:64px 0}
  .grid-3,.signal-grid,.channel-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .stat-strip{grid-template-columns:repeat(2,minmax(0,1fr))}
  .case-wrap{grid-template-columns:1fr;gap:32px}
  .footer-top{grid-template-columns:1fr 1fr}
  .compare-row{grid-template-columns:1fr;gap:10px}
  .compare-row .advice{padding-top:6px;border-top:1px dashed var(--line)}
}
@media (max-width:900px){
  .nav-toggle-label{display:block}
  .main-nav{
    position:absolute;left:0;right:0;top:100%;
    background:var(--surface);
    border-bottom:1px solid var(--line);
    box-shadow:var(--shadow);
    max-height:0;overflow:hidden;
    transition:max-height .35s var(--ease);
  }
  .nav-toggle:checked ~ .main-nav{max-height:360px}
  .main-nav ul{flex-direction:column;align-items:stretch;gap:2px;padding:14px 20px 20px}
  .main-nav a{padding:13px 16px;border-radius:12px}
  .header-cta{display:none}
  .header-inner{position:relative;justify-content:space-between}
}
@media (max-width:768px){
  .container{padding:0 18px}
  .section{padding:54px 0}
  .grid-3,.grid-2,.signal-grid,.channel-grid{grid-template-columns:1fr}
  .page-hero{padding:56px 0 62px}
  .cta-band{padding:38px 24px}
  .cta-form{grid-template-columns:1fr}
  .cta-form .btn{width:100%}
  .switch-item{grid-template-columns:1fr;gap:10px}
  .switch-item .arrow{transform:rotate(90deg)}
  .ladder-item{grid-template-columns:1fr;gap:14px}
  .card{padding:24px 22px}
  .footer-top{grid-template-columns:1fr;gap:28px}
}
@media (max-width:520px){
  body{font-size:15.5px}
  .stat-strip{grid-template-columns:1fr;gap:12px}
  .page-hero h1{font-size:26px}
  .brand-sub{display:none}
  .faq-item summary{padding:17px 18px;font-size:15.5px}
  .faq-body{padding:0 18px 20px}
  .footer-bottom{flex-direction:column;gap:6px}
}

/* roulang: framework shim */
/* 覆盖 Bootstrap 等对 a/btn 的全局默认，避免导航出现下划线/蓝链 */
.site-header a,.site-header a:hover,.navbar a,.navbar a:hover,.nav-links a,.nav-links a:hover,header nav a,header nav a:hover{text-decoration:none}
.site-header .btn,.navbar .btn,.nav-cta{text-decoration:none}