/* roulang page: index */
:root{
  --ink:#2A2344;
  --ink-deep:#1C1730;
  --jade:#7FA8B8;
  --amber:#E0A03C;
  --bg:#F7F4EE;
  --bg-2:#EFEAE1;
  --card:#FFFFFF;
  --text:#23202B;
  --text-2:#5A5566;
  --text-3:#8B8598;
  --revert:#F7F4EE;
  --line:rgba(42,35,68,.12);
  --line-soft:rgba(42,35,68,.08);
  --r-card:14px;
  --r-btn:10px;
  --r-img:16px;
  --sh-1:0 1px 2px rgba(28,23,48,.05),0 6px 18px rgba(28,23,48,.06);
  --sh-2:0 12px 28px rgba(28,23,48,.12);
}
*,*::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","Microsoft YaHei",system-ui,sans-serif;
  font-size:16px;
  line-height:1.85;
  letter-spacing:.01em;
  color:var(--text);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border:0}
a{color:inherit;text-decoration:none}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4,p,figure{margin:0}
button{font:inherit;color:inherit}
svg{display:block}
:focus-visible{outline:2px solid var(--amber);outline-offset:2px;border-radius:4px}

.container{max-width:1200px;margin:0 auto;padding:0 24px}
.section{padding:96px 0}
.section--tight{padding:72px 0}
.section--paper{background:var(--bg-2)}
.section--white{background:#fff}

/* ---------- header ---------- */
.site-header{
  position:fixed;top:0;left:0;right:0;z-index:90;
  background:transparent;border-bottom:1px solid transparent;
  transition:background .28s ease,box-shadow .28s ease,border-color .28s ease;
}
.site-header.is-scrolled{
  background:var(--ink-deep);
  border-bottom-color:rgba(247,244,238,.14);
  box-shadow:0 8px 22px rgba(28,23,48,.22);
}
.nav-inner{display:flex;align-items:center;justify-content:space-between;gap:24px;height:72px}
.brand{display:flex;align-items:center;gap:10px;color:var(--revert);flex:0 0 auto}
.brand-mark{width:34px;height:34px;flex:0 0 34px;color:var(--amber)}
.brand-text{display:flex;flex-direction:column;line-height:1.15}
.brand-name{font-size:17px;font-weight:700;letter-spacing:.02em}
.brand-sub{font-size:11px;color:rgba(247,244,238,.55);letter-spacing:.18em}
.nav-menu{display:flex;align-items:center;gap:22px}
.nav-link{
  position:relative;display:block;padding:6px 0;
  font-size:15px;font-weight:500;color:rgba(247,244,238,.72);
  transition:color .2s ease;
}
.nav-link::after{
  content:"";position:absolute;left:0;right:0;bottom:0;height:2px;
  background:var(--amber);border-radius:2px;opacity:0;transform:scaleX(.4);
  transition:opacity .2s ease,transform .2s ease;
}
.nav-link:hover{color:var(--revert)}
.nav-link:hover::after{opacity:1;transform:scaleX(1)}
.nav-link.is-active{color:var(--revert)}
.nav-link.is-active::after{opacity:1;transform:scaleX(1)}
.nav-right{display:flex;align-items:center;gap:18px;flex:0 0 auto}
.nav-ghost{font-size:14px;color:rgba(247,244,238,.7);transition:color .2s ease}
.nav-ghost:hover{color:var(--amber)}
.nav-cta{
  display:inline-flex;align-items:center;height:40px;padding:0 20px;
  border-radius:var(--r-btn);background:var(--revert);color:var(--ink);
  font-size:14px;font-weight:600;transition:background .2s ease,transform .2s ease;
}
.nav-cta:hover{background:#fff;transform:translateY(-1px)}
.hamburger{
  display:none;width:44px;height:44px;border:1px solid rgba(247,244,238,.28);
  border-radius:10px;background:transparent;cursor:pointer;
  align-items:center;justify-content:center;
}
.hamburger span{display:block;width:18px;height:1.6px;background:var(--revert);border-radius:2px;position:relative}
.hamburger span::before,.hamburger span::after{
  content:"";position:absolute;left:0;width:18px;height:1.6px;background:var(--revert);border-radius:2px;
}
.hamburger span::before{top:-6px}
.hamburger span::after{top:6px}

.drawer{
  position:fixed;top:0;right:0;bottom:0;width:82%;max-width:340px;z-index:120;
  background:var(--ink-deep);color:var(--revert);
  transform:translateX(102%);transition:transform .3s ease;
  display:flex;flex-direction:column;padding:20px 22px 24px;
}
.drawer.is-open{transform:translateX(0)}
.drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:18px}
.drawer-close{
  width:40px;height:40px;border-radius:10px;border:1px solid rgba(247,244,238,.24);
  background:transparent;color:var(--revert);font-size:18px;cursor:pointer;line-height:1;
}
.drawer-menu{display:flex;flex-direction:column;flex:1}
.drawer-menu a{
  display:flex;align-items:center;min-height:48px;font-size:15px;
  color:rgba(247,244,238,.8);border-bottom:1px solid rgba(247,244,238,.1);
  transition:color .2s ease;
}
.drawer-menu a:hover{color:var(--amber)}
.drawer-cta{
  margin-top:18px;display:flex;align-items:center;justify-content:center;
  height:48px;border-radius:var(--r-btn);background:var(--amber);color:var(--ink-deep);
  font-weight:700;font-size:15px;
}
.drawer-mask{
  position:fixed;inset:0;background:rgba(20,16,34,.55);z-index:110;
  opacity:0;visibility:hidden;transition:opacity .3s ease,visibility .3s ease;
}
.drawer-mask.is-open{opacity:1;visibility:visible}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 26px;border-radius:var(--r-btn);
  font-size:15px;font-weight:600;border:1px solid transparent;cursor:pointer;
  transition:background .2s ease,color .2s ease,border-color .2s ease,transform .2s ease,box-shadow .2s ease;
}
.btn-primary{background:var(--ink);color:var(--revert);box-shadow:var(--sh-1)}
.btn-primary:hover{background:var(--ink-deep);transform:translateY(-1px);box-shadow:var(--sh-2)}
.btn-light{background:var(--revert);color:var(--ink)}
.btn-light:hover{background:#fff;transform:translateY(-1px);box-shadow:var(--sh-2)}
.btn-ghost{border-color:rgba(247,244,238,.36);color:var(--revert);background:transparent}
.btn-ghost:hover{border-color:var(--amber);color:var(--amber)}
.btn-outline{border-color:var(--line);color:var(--ink);background:#fff}
.btn-outline:hover{border-color:var(--ink);box-shadow:var(--sh-1)}
.btn:active{transform:translateY(0)}
.btn--block{width:100%}

/* ---------- hero ---------- */
.hero{
  position:relative;overflow:hidden;
  background:var(--ink);color:var(--revert);
  padding:140px 0 96px;
}
.hero-stars{
  position:absolute;inset:0;pointer-events:none;opacity:.14;
  background-image:
    radial-gradient(circle,#F7F4EE 1px,transparent 1.6px),
    radial-gradient(circle,#E0A03C 1px,transparent 1.6px);
  background-size:200px 200px,320px 320px;
  background-position:0 0,70px 130px;
}
.hero-inner{
  position:relative;display:grid;grid-template-columns:1.12fr .88fr;
  gap:56px;align-items:center;
}
.hero-badge{
  display:inline-flex;align-items:center;gap:8px;
  font-size:14px;color:rgba(247,244,238,.86);
  border:1px solid rgba(224,160,60,.42);border-radius:999px;
  padding:6px 14px;margin-bottom:22px;
}
.hero-badge .dot{width:6px;height:6px;border-radius:50%;background:var(--amber)}
.hero h1{
  font-size:44px;line-height:1.25;font-weight:700;letter-spacing:.01em;
  max-width:15em;
}
.hero-sub{
  margin-top:20px;font-size:17px;line-height:1.8;
  color:rgba(247,244,238,.78);max-width:32em;
}
.hero-actions{display:flex;gap:14px;margin-top:32px;flex-wrap:wrap}
.hero-points{display:flex;gap:26px;flex-wrap:wrap;margin-top:34px}
.hero-points li{
  display:flex;align-items:center;gap:8px;
  font-size:13.5px;color:rgba(247,244,238,.7);
}
.hero-points li::before{
  content:"";width:6px;height:6px;border-radius:50%;
  background:var(--jade);flex:0 0 6px;
}
.hero-visual{position:relative}
.hero-figure{
  border-radius:var(--r-img);overflow:hidden;
  border:1px solid rgba(247,244,238,.16);box-shadow:0 18px 40px rgba(12,9,24,.34);
}
.hero-figure img{width:100%;aspect-ratio:16/10;object-fit:cover}
.hero-stats{
  display:grid;grid-template-columns:repeat(3,1fr);gap:12px;
  margin-top:18px;padding-top:16px;border-top:1px solid rgba(247,244,238,.18);
}
.hero-stats .num{
  font-size:22px;font-weight:700;color:var(--amber);
  font-variant-numeric:tabular-nums;line-height:1.3;
}
.hero-stats .cap{font-size:12px;color:rgba(247,244,238,.62);line-height:1.6}

/* ---------- trust ---------- */
.trust{background:#fff;border-bottom:1px solid var(--line-soft);padding:26px 0}
.trust-inner{display:flex;align-items:center;gap:36px;overflow-x:auto;scrollbar-width:none}
.trust-inner::-webkit-scrollbar{display:none}
.trust-label{
  flex:0 0 auto;font-size:13px;color:var(--text-3);letter-spacing:.08em;
}
.trust-list{display:flex;align-items:center;gap:36px;flex:1}
.trust-list li{
  flex:0 0 auto;font-size:14px;color:#9A94A6;font-weight:500;
  filter:grayscale(1);white-space:nowrap;
}

/* ---------- section head ---------- */
.section-head{
  display:flex;align-items:flex-end;justify-content:space-between;
  gap:24px;flex-wrap:wrap;margin-bottom:44px;
}
.section-head h2{font-size:29px;line-height:1.35;font-weight:700;letter-spacing:.01em}
.section-head .head-desc{font-size:14px;color:var(--text-3);max-width:34em}
.section-head--bar h2{position:relative;padding-left:16px}
.section-head--bar h2::before{
  content:"";position:absolute;left:0;top:8px;bottom:8px;width:3px;
  border-radius:2px;background:var(--amber);
}
.link-more{
  display:inline-flex;align-items:center;gap:6px;
  font-size:14px;font-weight:600;color:var(--ink);
  border-bottom:1px solid rgba(42,35,68,.28);padding-bottom:2px;
  transition:color .2s ease,border-color .2s ease;
}
.link-more:hover{color:var(--amber);border-color:var(--amber)}

/* ---------- value ---------- */
.value-grid{
  display:grid;grid-template-columns:repeat(3,1fr);gap:0;
  border-top:1px solid var(--line);
}
.value-item{padding:32px 32px 0 0;position:relative}
.value-item + .value-item{padding-left:32px;border-left:1px solid var(--line)}
.value-item h3{font-size:19px;font-weight:700;margin-bottom:10px}
.value-item p{font-size:15px;color:var(--text-2);line-height:1.85;max-width:26em}

/* ---------- features ---------- */
.feature-grid{display:grid;grid-template-columns:repeat(12,1fr);gap:24px}
.feature-wide{
  grid-column:span 6;display:grid;grid-template-columns:1fr .9fr;gap:0;
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);
  overflow:hidden;box-shadow:var(--sh-1);
  transition:transform .25s ease,box-shadow .25s ease,border-color .25s ease;
}
.feature-wide:hover{transform:translateY(-2px);box-shadow:var(--sh-2);border-color:rgba(42,35,68,.24)}
.feature-wide .fw-copy{padding:28px 24px;display:flex;flex-direction:column;justify-content:center}
.feature-wide .fw-copy h3{font-size:20px;font-weight:700;margin-bottom:10px}
.feature-wide .fw-copy p{font-size:14px;color:var(--text-2);line-height:1.8}
.feature-wide .fw-media img{width:100%;height:100%;min-height:220px;object-fit:cover}
.feature-mini{
  grid-column:span 3;background:var(--card);border:1px solid var(--line);
  border-radius:var(--r-card);padding:24px;box-shadow:var(--sh-1);
  display:flex;flex-direction:column;gap:12px;
  transition:transform .25s ease,box-shadow .25s ease,border-color .25s ease;
}
.feature-mini:hover{transform:translateY(-2px);box-shadow:var(--sh-2);border-color:rgba(42,35,68,.24)}
.ico{width:40px;height:40px;color:var(--ink);stroke-width:1.4}
.feature-mini h3{font-size:18px;font-weight:700}
.feature-mini p{font-size:14px;color:var(--text-2);line-height:1.8}
.feature-mini .arrow{margin-top:auto;font-size:14px;font-weight:600;color:var(--ink);transition:color .2s ease}
.feature-mini:hover .arrow{color:var(--amber)}
.feature-strips{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;margin-top:24px}
.feature-strip{
  display:flex;align-items:flex-start;gap:14px;
  background:#fff;border:1px solid var(--line);border-radius:var(--r-card);
  padding:20px 22px;box-shadow:var(--sh-1);
  transition:transform .25s ease,box-shadow .25s ease,border-color .25s ease;
}
.feature-strip:hover{transform:translateY(-2px);box-shadow:var(--sh-2);border-color:rgba(42,35,68,.24)}
.feature-strip .ico{width:26px;height:26px;flex:0 0 26px;color:var(--jade)}
.feature-strip h4{font-size:16px;font-weight:700;margin-bottom:2px}
.feature-strip p{font-size:13.5px;color:var(--text-3);line-height:1.7}

/* ---------- scenes ---------- */
.scene-tabs{display:flex;gap:12px;flex-wrap:wrap;margin-bottom:44px}
.scene-tab{
  padding:10px 22px;border-radius:999px;border:1px solid var(--line);
  background:#fff;color:var(--text-2);font-size:14px;font-weight:500;cursor:pointer;
  transition:background .2s ease,color .2s ease,border-color .2s ease,box-shadow .2s ease;
}
.scene-tab:hover{border-color:var(--ink);color:var(--ink)}
.scene-tab.is-active{background:var(--ink);border-color:var(--ink);color:var(--revert);box-shadow:var(--sh-1)}
.scene-row{
  display:grid;grid-template-columns:1fr 1fr;gap:56px;align-items:center;
}
.scene-row + .scene-row{margin-top:72px}
.scene-row.reverse .scene-media{order:2}
.scene-media img{
  width:100%;aspect-ratio:4/3;object-fit:cover;
  border-radius:var(--r-img);border:1px solid var(--line);box-shadow:var(--sh-1);
}
.scene-copy h3{font-size:24px;font-weight:700;line-height:1.45;margin-bottom:14px}
.scene-copy .lead{font-size:15px;color:var(--text-2);line-height:1.85;margin-bottom:22px}
.scene-list li{
  position:relative;padding-left:22px;font-size:15px;color:var(--text-2);
  line-height:1.9;margin-bottom:6px;
}
.scene-list li::before{
  content:"";position:absolute;left:2px;top:.85em;width:7px;height:7px;
  border-radius:50%;background:var(--amber);
}

/* ---------- cases ---------- */
.case-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:24px}
.case-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-card);
  padding:30px;box-shadow:var(--sh-1);
  transition:transform .25s ease,box-shadow .25s ease,border-color .25s ease;
}
.case-card:hover{transform:translateY(-2px);box-shadow:var(--sh-2);border-color:rgba(42,35,68,.24)}
.case-name{font-size:14px;color:var(--text-3);letter-spacing:.02em}
.case-metric{
  font-size:32px;font-weight:700;color:var(--ink);line-height:1.3;
  font-variant-numeric:tabular-nums;margin:12px 0 4px;
}
.case-metric small{font-size:14px;font-weight:500;color:var(--text-2);margin-left:6px}
.case-desc{font-size:14.5px;color:var(--text-2);line-height:1.85}
.case-tags{display:flex;gap:8px;flex-wrap:wrap;margin-top:18px}
.tag{
  display:inline-flex;align-items:center;height:26px;padding:0 12px;
  border-radius:999px;background:var(--bg-2);color:var(--text-2);
  font-size:12px;letter-spacing:.02em;
}

/* ---------- pricing ---------- */
.price-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;align-items:start}
.price-card{
  position:relative;background:#fff;border:1px solid var(--line);
  border-radius:var(--r-card);padding:32px 26px;box-shadow:var(--sh-1);
  display:flex;flex-direction:column;
  transition:transform .25s ease,box-shadow .25s ease;
}
.price-card:hover{box-shadow:var(--sh-2)}
.price-card.is-recommended{
  border:2px solid var(--ink);padding-top:40px;transform:translateY(-8px);
}
.price-badge{
  position:absolute;top:-13px;left:50%;transform:translateX(-50%);
  background:var(--amber);color:var(--ink-deep);font-size:12px;font-weight:700;
  padding:4px 14px;border-radius:999px;letter-spacing:.04em;
}
.price-name{font-size:18px;font-weight:700}
.price-sub{font-size:13px;color:var(--text-3);margin-top:2px}
.price-num{
  font-size:40px;font-weight:700;line-height:1.25;color:var(--ink);
  font-variant-numeric:tabular-nums;margin-top:18px;
}
.price-num span{font-size:14px;font-weight:500;color:var(--text-3);margin-left:6px}
.plan-list{margin:22px 0 26px;display:flex;flex-direction:column;gap:8px}
.plan-list li{
  position:relative;padding-left:24px;font-size:14px;color:var(--text-2);line-height:1.75;
}
.plan-list li::before{
  content:"";position:absolute;left:4px;top:.72em;width:8px;height:4px;
  border-left:1.5px solid var(--jade);border-bottom:1.5px solid var(--jade);
  transform:rotate(-45deg);
}
.price-card .btn{margin-top:auto}
.price-note{font-size:12px;color:var(--text-3);margin-top:24px;line-height:1.8}

/* ---------- news ---------- */
.news-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.news-card{
  display:flex;flex-direction:column;background:#fff;overflow:hidden;
  border:1px solid var(--line);border-radius:var(--r-card);box-shadow:var(--sh-1);
  transition:transform .25s ease,box-shadow .25s ease,border-color .25s ease;
}
.news-card:hover{transform:translateY(-2px);box-shadow:var(--sh-2);border-color:rgba(42,35,68,.24)}
.news-thumb{width:100%;aspect-ratio:16/10;object-fit:cover}
.news-body{padding:20px;display:flex;flex-direction:column;gap:10px;flex:1}
.news-cat{
  align-self:flex-start;font-size:12px;padding:3px 10px;border-radius:999px;
  background:rgba(42,35,68,.06);color:var(--ink);
}
.news-title{
  font-size:17px;font-weight:600;line-height:1.55;color:var(--text);
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.news-excerpt{
  font-size:14px;line-height:1.75;color:var(--text-3);
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.news-foot{
  margin-top:auto;display:flex;align-items:center;justify-content:space-between;
  gap:12px;padding-top:14px;border-top:1px solid var(--line-soft);
  font-size:14px;color:var(--text-3);
}
.news-arrow{font-size:16px;color:var(--ink);transition:transform .2s ease,color .2s ease}
.news-card:hover .news-arrow{transform:translateX(3px);color:var(--amber)}
.news-empty{
  grid-column:1/-1;min-height:220px;display:flex;flex-direction:column;
  align-items:center;justify-content:center;gap:12px;
  border:1px dashed var(--line);border-radius:var(--r-card);
  background:#fff;color:var(--text-3);font-size:14px;text-align:center;
}
.news-empty svg{width:34px;height:34px;color:var(--text-3);stroke-width:1.2}

/* ---------- faq ---------- */
.faq-wrap{max-width:880px}
.faq-item{border-bottom:1px solid var(--line)}
.faq-item:first-child{border-top:1px solid var(--line)}
.faq-q{
  display:flex;align-items:center;justify-content:space-between;gap:20px;
  padding:22px 0;cursor:pointer;list-style:none;
  font-size:16px;font-weight:600;color:var(--text);
  transition:color .2s ease;
}
.faq-q::-webkit-details-marker{display:none}
.faq-q:hover{color:var(--ink)}
.faq-icon{position:relative;width:16px;height:16px;flex:0 0 16px;transition:transform .25s ease}
.faq-icon::before,.faq-icon::after{content:"";position:absolute;background:var(--text-2);border-radius:1px}
.faq-icon::before{left:0;right:0;top:7px;height:1.5px}
.faq-icon::after{top:0;bottom:0;left:7px;width:1.5px}
.faq-item[open] .faq-icon{transform:rotate(45deg)}
.faq-a{padding:0 40px 22px 0;font-size:14px;line-height:1.85;color:var(--text-2);max-width:44em}

/* ---------- cta ---------- */
.cta-section{padding:0 0 96px}
.cta-band{
  position:relative;overflow:hidden;
  background:var(--ink);color:var(--revert);
  border-radius:16px;padding:56px;
  display:flex;align-items:center;justify-content:space-between;gap:36px;flex-wrap:wrap;
}
.cta-band::before{
  content:"";position:absolute;inset:0;pointer-events:none;opacity:.12;
  background-image:radial-gradient(circle,#F7F4EE 1px,transparent 1.6px);
  background-size:200px 200px;
}
.cta-copy{position:relative;max-width:34em}
.cta-copy h2{font-size:26px;font-weight:700;line-height:1.4}
.cta-copy p{margin-top:10px;font-size:15px;color:rgba(247,244,238,.76);line-height:1.8}
.cta-band .btn{position:relative}

/* ---------- footer ---------- */
.site-footer{
  background:var(--ink-deep);color:rgba(247,244,238,.72);
  padding:72px 0 0;font-size:14px;
}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.2fr;gap:40px}
.footer-brand .brand{margin-bottom:16px}
.footer-about{line-height:1.85;color:rgba(247,244,238,.62);max-width:26em}
.footer-words{display:flex;gap:8px;flex-wrap:wrap;margin-top:18px}
.footer-words span{
  font-size:12px;padding:3px 10px;border-radius:999px;
  border:1px solid rgba(247,244,238,.2);color:rgba(247,244,238,.66);
}
.footer-col h4{
  font-size:15px;font-weight:700;color:var(--revert);margin-bottom:16px;letter-spacing:.02em;
}
.footer-col ul li{margin-bottom:10px}
.footer-col a{color:rgba(247,244,238,.68);font-size:14px;transition:color .2s ease}
.footer-col a:hover{color:var(--amber)}
.footer-contact li{margin-bottom:10px;line-height:1.75;color:rgba(247,244,238,.68)}
.footer-contact li strong{color:rgba(247,244,238,.86);font-weight:600;margin-right:6px}
.footer-bottom{
  margin-top:56px;padding:22px 0;border-top:1px solid rgba(247,244,238,.14);
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:13px;color:rgba(247,244,238,.5);
}
.footer-bottom .sep{opacity:.5;margin:0 8px}

/* ---------- responsive ---------- */
@media (max-width:1199px){
  .hero h1{font-size:38px}
  .feature-wide{grid-column:span 6}
  .feature-mini{grid-column:span 3}
}
@media (max-width:1024px){
  .nav-menu,.nav-ghost{display:none}
  .hamburger{display:inline-flex}
  .nav-cta{display:none}
  .hero{padding:120px 0 80px}
  .hero-inner{grid-template-columns:1fr;gap:44px}
  .hero h1{max-width:22em;font-size:36px}
  .hero-visual{max-width:640px}
  .section{padding:76px 0}
  .value-grid{grid-template-columns:1fr}
  .value-item{padding:26px 0 0 0}
  .value-item + .value-item{padding-left:0;border-left:0;border-top:1px solid var(--line)}
  .feature-grid{grid-template-columns:repeat(2,1fr);gap:20px}
  .feature-wide{grid-column:span 2}
  .feature-mini{grid-column:span 1}
  .feature-strips{grid-template-columns:1fr;gap:16px}
  .scene-row{grid-template-columns:1fr;gap:32px}
  .scene-row.reverse .scene-media{order:0}
  .case-grid{grid-template-columns:1fr}
  .price-grid{grid-template-columns:1fr;gap:28px}
  .price-card.is-recommended{transform:none;padding-top:38px}
  .news-grid{grid-template-columns:repeat(2,1fr)}
  .cta-band{padding:40px 32px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
}
@media (max-width:767px){
  .container{padding:0 18px}
  .hero{padding:104px 0 64px}
  .hero h1{font-size:30px;line-height:1.32}
  .hero-sub{font-size:15.5px}
  .hero-actions{gap:12px}
  .hero-actions .btn{flex:1 1 auto;min-width:140px}
  .hero-points{gap:16px 22px}
  .hero-stats{grid-template-columns:1fr 1fr 1fr;gap:8px}
  .hero-stats .num{font-size:19px}
  .section{padding:56px 0}
  .section-head{margin-bottom:32px}
  .section-head h2{font-size:24px}
  .feature-grid{grid-template-columns:1fr}
  .feature-wide{grid-column:span 1;grid-template-columns:1fr}
  .feature-wide .fw-media img{min-height:180px;aspect-ratio:16/10;height:auto}
  .feature-mini{grid-column:span 1;padding:20px}
  .scene-copy h3{font-size:21px}
  .news-grid{grid-template-columns:1fr}
  .cta-band{padding:32px 24px;border-radius:14px}
  .cta-copy h2{font-size:22px}
  .cta-band .btn{width:100%}
  .faq-q{font-size:15px;padding:18px 0}
  .faq-a{padding-right:0}
  .footer-grid{grid-template-columns:1fr;gap:28px}
  .footer-bottom{flex-direction:column;align-items:flex-start}
}
@media (max-width:479px){
  .hero h1{font-size:26px}
  .hero-badge{font-size:13px}
  .btn{height:46px;padding:0 20px;font-size:14.5px}
  .price-num{font-size:34px}
  .case-metric{font-size:27px}
  .trust-inner{gap:24px}
}

/* roulang page: article */
:root{
  --primary:#2A2344;
  --primary-dark:#1C1730;
  --secondary:#7FA8B8;
  --accent:#E0A03C;
  --bg:#F7F4EE;
  --card:#FFFFFF;
  --bg-alt:#EFEAE1;
  --text:#23202B;
  --text-2:#5A5566;
  --text-3:#8B8598;
  --border:rgba(42,35,68,.12);
  --divider:rgba(42,35,68,.08);
  --radius-card:14px;
  --radius-btn:10px;
  --radius-img:16px;
  --shadow-sm:0 1px 2px rgba(28,23,48,.05),0 6px 18px rgba(28,23,48,.06);
  --shadow-md:0 12px 28px rgba(28,23,48,.12);
  --container:1200px;
}
*,*::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","Microsoft YaHei",system-ui,sans-serif;
  font-size:16px;
  line-height:1.85;
  letter-spacing:.01em;
  color:var(--text);
  background:var(--bg);
}
img{max-width:100%;display:block;height:auto}
a{color:inherit;text-decoration:none}
button{font:inherit;cursor:pointer;border:none;background:none;color:inherit}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4,p{margin:0}
:focus-visible{outline:2px solid var(--accent);outline-offset:2px;border-radius:4px}
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 24px}

/* ---------- Header ---------- */
.site-header{
  position:sticky;top:0;z-index:100;
  background:var(--primary);
  border-bottom:1px solid rgba(247,244,238,.08);
  transition:box-shadow .25s ease,background .25s ease;
}
.site-header.is-scrolled{box-shadow:0 10px 26px rgba(28,23,48,.22)}
.header-inner{display:flex;align-items:center;justify-content:space-between;gap:20px;min-height:72px}
.brand{display:inline-flex;align-items:center;gap:10px;color:#F7F4EE;flex:none}
.brand-mark{width:34px;height:34px;color:var(--accent);flex:none}
.brand-text{display:flex;align-items:baseline;gap:8px}
.brand-name{font-size:19px;font-weight:700;letter-spacing:.05em}
.brand-sub{font-size:11px;letter-spacing:.32em;color:rgba(247,244,238,.55)}
.nav-menu{display:flex;align-items:center;gap:26px;margin-left:auto}
.nav-link{
  position:relative;display:block;
  font-size:15px;font-weight:500;color:rgba(247,244,238,.76);
  padding:6px 0;transition:color .2s ease;white-space:nowrap;
}
.nav-link::after{
  content:"";position:absolute;left:0;right:0;bottom:-2px;height:2px;
  background:var(--accent);transform:scaleX(0);transform-origin:left;
  transition:transform .22s ease;
}
.nav-link:hover,.nav-link:focus-visible{color:#FFFFFF}
.nav-link:hover::after,.nav-link.is-active::after{transform:scaleX(1)}
.nav-link.is-active{color:#FFFFFF;font-weight:600}
.header-actions{display:flex;align-items:center;gap:14px;flex:none}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:44px;padding:0 22px;border-radius:var(--radius-btn);
  font-size:15px;font-weight:600;letter-spacing:.02em;
  border:1px solid transparent;white-space:nowrap;
  transition:transform .2s ease,background .2s ease,color .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.btn-accent{background:var(--accent);color:#2A2344}
.btn-accent:hover{background:#EDAF52;transform:translateY(-1px);box-shadow:0 8px 18px rgba(224,160,60,.28)}
.btn-accent:active{transform:translateY(0)}
.btn-primary{background:var(--primary);color:#F7F4EE}
.btn-primary:hover{background:var(--primary-dark);transform:translateY(-1px);box-shadow:var(--shadow-md)}
.btn-outline{background:transparent;border-color:rgba(42,35,68,.28);color:var(--primary)}
.btn-outline:hover{background:rgba(42,35,68,.06);border-color:var(--primary)}
.btn-sm{height:38px;padding:0 18px;font-size:14px}
.nav-toggle{
  display:none;width:44px;height:44px;border-radius:10px;
  border:1px solid rgba(247,244,238,.24);
  align-items:center;justify-content:center;flex-direction:column;
  position:relative;z-index:101;color:#F7F4EE;
}
.nav-toggle span{display:block;width:20px;height:1.6px;background:currentColor;transition:transform .25s ease,opacity .2s ease}
.nav-toggle span + span{margin-top:4px}
body.menu-open .nav-toggle span:nth-child(1){transform:translateY(5.6px) rotate(45deg)}
body.menu-open .nav-toggle span:nth-child(2){opacity:0}
body.menu-open .nav-toggle span:nth-child(3){transform:translateY(-5.6px) rotate(-45deg)}
.nav-overlay{
  position:fixed;inset:0;background:rgba(20,16,34,.55);
  opacity:0;visibility:hidden;transition:opacity .28s ease,visibility .28s ease;
  z-index:95;
}
.nav-overlay.is-on{opacity:1;visibility:visible}
.nav-link-cta{display:none}

/* ---------- Article hero ---------- */
.article-hero{
  position:relative;overflow:hidden;
  padding:36px 0 52px;
  background:
    linear-gradient(100deg,rgba(247,244,238,.97) 0%,rgba(247,244,238,.92) 52%,rgba(247,244,238,.74) 100%),
    url(/assets/images/backpic/back-1.webp) center/cover no-repeat;
  border-bottom:1px solid var(--divider);
}
.article-hero::after{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:radial-gradient(rgba(42,35,68,.12) 1px,transparent 1px);
  background-size:170px 170px;opacity:.5;
}
.article-hero .container{position:relative;z-index:1}
.breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--text-3);margin-bottom:22px}
.breadcrumb a{color:var(--text-2);transition:color .2s ease}
.breadcrumb a:hover{color:var(--primary)}
.breadcrumb .crumb-sep{color:rgba(42,35,68,.28)}
.breadcrumb .current{color:var(--text-3);max-width:46ch;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.tag-badge{
  display:inline-flex;align-items:center;gap:6px;
  font-size:12px;font-weight:600;letter-spacing:.06em;
  color:var(--primary);background:rgba(224,160,60,.16);
  border:1px solid rgba(224,160,60,.4);
  padding:5px 12px;border-radius:999px;
}
.article-title{
  margin:18px 0 0;
  font-size:clamp(28px,3.6vw,44px);
  line-height:1.32;font-weight:700;letter-spacing:.01em;
  color:var(--primary-dark);
  max-width:20em;
}
.article-meta{
  display:flex;flex-wrap:wrap;align-items:center;gap:10px;
  margin-top:20px;font-size:14px;color:var(--text-3);
}
.article-meta .dot{width:4px;height:4px;border-radius:50%;background:rgba(42,35,68,.25)}
.article-meta strong{color:var(--text-2);font-weight:600}
.lead-quote{
  margin-top:26px;padding:2px 0 2px 16px;
  border-left:3px solid var(--accent);
  font-size:16px;line-height:1.85;color:var(--text-2);
  max-width:64ch;
}

/* ---------- Article body layout ---------- */
.article-main{padding:56px 0 40px}
.article-layout{
  max-width:1060px;margin:0 auto;
  display:grid;grid-template-columns:minmax(0,1fr) 224px;
  gap:52px;align-items:start;
}
.article-body{
  font-size:16.5px;line-height:1.9;color:var(--text);
  max-width:760px;
  overflow-wrap:break-word;word-break:break-word;
}
.article-body > *:first-child{margin-top:0}
.article-body h2{font-size:26px;line-height:1.42;font-weight:700;color:var(--primary-dark);margin:44px 0 16px}
.article-body h3{font-size:20px;line-height:1.5;font-weight:700;color:var(--primary-dark);margin:32px 0 12px}
.article-body h4{font-size:17px;line-height:1.6;font-weight:700;color:var(--primary-dark);margin:26px 0 10px}
.article-body p{margin:0 0 1em}
.article-body ul,.article-body ol{margin:0 0 1.2em;padding-left:0}
.article-body ul li{position:relative;padding-left:18px;margin-bottom:.5em;list-style:none}
.article-body ul li::before{
  content:"";position:absolute;left:0;top:.78em;
  width:6px;height:6px;border-radius:50%;background:var(--accent);
}
.article-body ol{counter-reset:item;padding-left:2px}
.article-body ol li{position:relative;padding-left:26px;margin-bottom:.5em;list-style:none;counter-increment:item}
.article-body ol li::before{
  content:counter(item);position:absolute;left:0;top:.28em;
  width:19px;height:19px;border-radius:50%;
  background:rgba(42,35,68,.08);color:var(--primary);
  font-size:12px;font-weight:700;line-height:19px;text-align:center;
  font-variant-numeric:tabular-nums;
}
.article-body blockquote{
  margin:26px 0;padding:18px 22px;
  background:var(--bg-alt);border-left:3px solid var(--primary);
  border-radius:0 10px 10px 0;color:var(--text-2);font-size:15.5px;
}
.article-body blockquote p:last-child{margin-bottom:0}
.article-body img{border-radius:12px;margin:26px auto}
.article-body figure{margin:26px 0}
.article-body figcaption{font-size:13px;color:var(--text-3);text-align:center;margin-top:10px}
.article-body a{color:var(--primary);text-decoration:underline;text-underline-offset:3px;text-decoration-thickness:1px;transition:color .2s ease}
.article-body a:hover{color:var(--accent)}
.article-body table{width:100%;max-width:100%;display:block;overflow-x:auto;border-collapse:collapse;margin:26px 0;font-size:14px}
.article-body th,.article-body td{border:1px solid var(--border);padding:10px 14px;text-align:left;white-space:nowrap}
.article-body th{background:var(--bg-alt);font-weight:600;color:var(--primary-dark)}
.article-body hr{border:none;border-top:1px solid var(--divider);margin:34px 0}
.article-body code{
  background:rgba(42,35,68,.07);border-radius:5px;padding:2px 6px;
  font-size:.92em;font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;
}
.article-body pre{
  background:var(--primary-dark);color:#EFEAE1;border-radius:12px;
  padding:18px 20px;overflow-x:auto;margin:26px 0;font-size:14px;line-height:1.7;
}
.article-body pre code{background:none;color:inherit;padding:0}

/* ---------- Aside ---------- */
.article-aside{position:relative}
.aside-sticky{position:sticky;top:96px;display:flex;flex-direction:column;gap:18px}
.toc-card{
  background:var(--card);border:1px solid var(--border);
  border-radius:var(--radius-card);padding:20px 18px;
  box-shadow:var(--shadow-sm);
}
.toc-card h3{
  font-size:12px;font-weight:700;letter-spacing:.14em;
  color:var(--text-3);margin:0 0 12px;
}
.toc-card ul{margin:0}
.toc-card a{
  display:block;font-size:14px;line-height:1.55;color:var(--text-2);
  padding:5px 0 5px 11px;border-left:2px solid transparent;
  transition:color .2s ease,border-color .2s ease;
  overflow:hidden;text-overflow:ellipsis;white-space:nowrap;
}
.toc-card a.is-sub{padding-left:23px;font-size:13px;color:var(--text-3)}
.toc-card a:hover,.toc-card a.is-active{color:var(--primary);border-left-color:var(--accent)}
.aside-cta{
  background:var(--primary);color:#F7F4EE;border-radius:var(--radius-card);
  padding:22px 20px;position:relative;overflow:hidden;
}
.aside-cta::after{
  content:"";position:absolute;right:-30px;top:-30px;width:110px;height:110px;
  border-radius:50%;border:1px solid rgba(224,160,60,.32);
}
.aside-cta p{font-size:14px;line-height:1.7;color:rgba(247,244,238,.78);margin:0 0 14px;position:relative;z-index:1}
.aside-cta .btn{height:38px;padding:0 16px;font-size:14px;position:relative;z-index:1}

/* ---------- Tags / back link ---------- */
.article-foot{max-width:1060px;margin:8px auto 0}
.tag-row{display:flex;flex-wrap:wrap;align-items:center;gap:10px;padding:22px 0;border-top:1px solid var(--divider)}
.tag-row .label{font-size:13px;color:var(--text-3);margin-right:4px}
.tag{
  display:inline-flex;align-items:center;
  font-size:13px;color:var(--text-2);
  background:var(--bg-alt);border:1px solid transparent;
  padding:5px 13px;border-radius:999px;
  transition:background .2s ease,color .2s ease,border-color .2s ease;
}
.tag:hover{background:rgba(224,160,60,.16);color:var(--primary);border-color:rgba(224,160,60,.4)}
.back-row{display:flex;flex-wrap:wrap;gap:14px;align-items:center;padding:6px 0 10px}
.text-link{
  display:inline-flex;align-items:center;gap:7px;
  font-size:14px;font-weight:600;color:var(--primary);
  transition:color .2s ease,gap .2s ease;
}
.text-link:hover{color:var(--accent);gap:11px}
.text-link svg{width:15px;height:15px}

/* ---------- Empty state ---------- */
.empty-state{
  max-width:720px;margin:0 auto;text-align:center;
  border:1px dashed rgba(42,35,68,.24);border-radius:var(--radius-card);
  padding:64px 28px;background:rgba(255,255,255,.6);
}
.empty-state svg{width:44px;height:44px;color:var(--secondary);margin:0 auto 18px}
.empty-state h1{font-size:24px;font-weight:700;color:var(--primary-dark);margin-bottom:10px}
.empty-state p{font-size:15px;color:var(--text-2);margin-bottom:24px}

/* ---------- CTA band ---------- */
.cta-section{padding:16px 0 84px}
.cta-band{
  position:relative;overflow:hidden;
  background:linear-gradient(135deg,#2A2344 0%,#1C1730 100%);
  border-radius:16px;padding:44px 48px;
  display:flex;align-items:center;justify-content:space-between;gap:36px;
}
.cta-band::before{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:radial-gradient(rgba(224,160,60,.4) 1px,transparent 1px);
  background-size:190px 190px;opacity:.18;
}
.cta-band::after{
  content:"";position:absolute;right:-70px;bottom:-90px;
  width:250px;height:250px;border-radius:50%;
  border:1px solid rgba(224,160,60,.22);
}
.cta-copy{position:relative;z-index:1;max-width:56ch}
.cta-copy h2{font-size:26px;line-height:1.4;color:#F7F4EE;font-weight:700}
.cta-copy p{margin-top:10px;font-size:15px;line-height:1.8;color:rgba(247,244,238,.72)}
.cta-actions{position:relative;z-index:1;display:flex;gap:14px;flex-wrap:wrap;flex:none}

/* ---------- Footer ---------- */
.site-footer{background:var(--primary-dark);color:rgba(247,244,238,.72);padding:64px 0 0}
.footer-grid{
  display:grid;grid-template-columns:1.7fr 1fr 1fr 1.4fr;
  gap:40px;padding-bottom:48px;
}
.footer-brand .brand{color:#F7F4EE;margin-bottom:16px}
.footer-about{font-size:14px;line-height:1.9;color:rgba(247,244,238,.6);max-width:36ch;margin:0 0 18px}
.footer-words{display:flex;flex-wrap:wrap;gap:8px}
.footer-words span{
  font-size:12px;padding:4px 11px;border-radius:999px;
  border:1px solid rgba(247,244,238,.18);color:rgba(247,244,238,.64);
}
.footer-col h4{font-size:14px;font-weight:700;letter-spacing:.07em;color:#F7F4EE;margin:0 0 16px}
.footer-col ul li{margin-bottom:10px}
.footer-col a{font-size:14px;color:rgba(247,244,238,.68);transition:color .2s ease}
.footer-col a:hover{color:var(--accent)}
.footer-contact li{font-size:14px;line-height:1.8;color:rgba(247,244,238,.68);margin-bottom:10px}
.footer-contact strong{display:inline-block;min-width:34px;margin-right:8px;font-weight:500;color:rgba(247,244,238,.44)}
.footer-bottom{
  border-top:1px solid rgba(247,244,238,.12);
  padding:20px 0;display:flex;flex-wrap:wrap;gap:12px;
  justify-content:space-between;font-size:13px;color:rgba(247,244,238,.48);
}
.footer-bottom .sep{margin:0 8px;opacity:.45}

/* ---------- Responsive ---------- */
@media (max-width:1199px){
  .article-layout{grid-template-columns:minmax(0,1fr);gap:0;max-width:800px}
  .article-aside{display:none}
  .article-body{max-width:100%}
}
@media (max-width:1024px){
  .nav-toggle{display:flex}
  .header-cta{display:none}
  .nav-menu{
    position:fixed;top:0;right:0;bottom:0;
    width:min(82vw,340px);
    background:var(--primary-dark);
    flex-direction:column;align-items:stretch;gap:0;
    padding:88px 24px 32px;
    margin:0;overflow-y:auto;
    transform:translateX(100%);
    transition:transform .3s cubic-bezier(.4,0,.2,1);
    z-index:96;
  }
  .nav-menu.is-open{transform:translateX(0)}
  .nav-link{padding:14px 0;font-size:16px;border-bottom:1px solid rgba(247,244,238,.1)}
  .nav-link::after{display:none}
  .nav-link.is-active{color:var(--accent)}
  .nav-link-cta{
    display:flex;align-items:center;justify-content:center;
    margin-top:26px;padding:14px;border-radius:10px;
    background:var(--accent);color:var(--primary-dark);
    font-weight:700;border-bottom:none;
  }
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
}
@media (max-width:767px){
  .container{padding:0 18px}
  .header-inner{min-height:64px;gap:12px}
  .brand-name{font-size:17px}
  .brand-sub{font-size:10px;letter-spacing:.24em}
  .article-hero{padding:26px 0 36px}
  .article-title{font-size:26px;line-height:1.35}
  .article-meta{font-size:13px;margin-top:16px}
  .lead-quote{font-size:15px;margin-top:20px}
  .article-main{padding:36px 0 24px}
  .article-body{font-size:16px;line-height:1.88}
  .article-body h2{font-size:22px;margin:34px 0 14px}
  .article-body h3{font-size:18px;margin:26px 0 10px}
  .cta-section{padding:8px 0 60px}
  .cta-band{flex-direction:column;align-items:flex-start;padding:32px 24px;gap:22px}
  .cta-copy h2{font-size:21px}
  .cta-actions{width:100%}
  .cta-actions .btn{flex:1 1 auto;width:100%}
  .footer-grid{grid-template-columns:1fr;gap:28px;padding-bottom:36px}
  .footer-bottom{flex-direction:column;align-items:flex-start;font-size:12px}
  .site-footer{padding-top:48px}
}
@media (max-width:519px){
  .breadcrumb{font-size:12px;margin-bottom:16px}
  .breadcrumb .current{max-width:24ch}
  .article-title{font-size:23px}
  .empty-state{padding:44px 18px}
  .tag{padding:4px 10px;font-size:12px}
}

/* roulang page: category1 */
:root{
  --ink:#2A2344;
  --ink-deep:#1C1730;
  --cyan:#7FA8B8;
  --amber:#E0A03C;
  --bg:#F7F4EE;
  --bg-alt:#EFEAE1;
  --card:#FFFFFF;
  --text:#23202B;
  --text-2:#5A5566;
  --text-3:#8B8598;
  --line:rgba(42,35,68,.12);
  --line-soft:rgba(42,35,68,.08);
  --r-card:14px;
  --r-btn:10px;
  --r-img:16px;
  --sh-1:0 1px 2px rgba(28,23,48,.05),0 6px 18px rgba(28,23,48,.06);
  --sh-2:0 12px 28px rgba(28,23,48,.12);
  --container:1200px;
}

*,*::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","Microsoft YaHei",system-ui,-apple-system,sans-serif;
  font-size:16px;
  line-height:1.85;
  color:var(--text);
  background:var(--bg);
  letter-spacing:.01em;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;height:auto}
a{color:inherit;text-decoration:none}
ul,ol{margin:0;padding:0;list-style:none}
button{font:inherit;cursor:pointer}
h1,h2,h3,h4,p,figure,dl,dd{margin:0}
:focus-visible{outline:2px solid var(--amber);outline-offset:2px;border-radius:4px}
body.no-scroll{overflow:hidden}

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

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:13px 24px;border-radius:var(--r-btn);border:1px solid transparent;
  font-size:15px;font-weight:600;letter-spacing:.02em;line-height:1.2;
  transition:transform .2s ease,background .2s ease,color .2s ease,border-color .2s ease,box-shadow .2s ease;
}
.btn-sm{padding:10px 18px;font-size:14px}
.btn-primary{background:var(--ink);color:#F7F4EE;box-shadow:var(--sh-1)}
.btn-primary:hover{background:var(--ink-deep);transform:translateY(-1px);box-shadow:var(--sh-2)}
.btn-primary:active{transform:translateY(0);box-shadow:var(--sh-1)}
.btn-light{background:#F7F4EE;color:var(--ink);border-color:rgba(247,244,238,.5)}
.btn-light:hover{background:#FFFFFF;color:var(--ink-deep);transform:translateY(-1px);box-shadow:0 12px 28px rgba(0,0,0,.22)}
.btn-outline{background:transparent;color:#F7F4EE;border-color:rgba(247,244,238,.42)}
.btn-outline:hover{border-color:var(--amber);color:var(--amber)}
.btn-block{width:100%}

/* ---------- 头部导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(247,244,238,.9);
  border-bottom:1px solid transparent;
  transition:background .25s ease,box-shadow .25s ease,border-color .25s ease;
}
.site-header.is-scrolled{
  background:rgba(247,244,238,.98);
  border-bottom-color:var(--line-soft);
  box-shadow:0 6px 18px rgba(28,23,48,.07);
}
.header-inner{display:flex;align-items:center;gap:28px;height:72px}
.brand{display:flex;align-items:center;gap:10px;color:var(--ink);flex:none}
.brand-mark{width:34px;height:34px;flex:none}
.brand-text{display:flex;flex-direction:column;line-height:1.15}
.brand-name{font-size:18px;font-weight:700;letter-spacing:.02em}
.brand-sub{font-size:11px;color:var(--text-3);letter-spacing:.34em}
.nav-menu{display:flex;align-items:center;gap:28px;margin-left:auto}
.nav-link{
  position:relative;display:inline-block;padding:6px 0;
  font-size:15px;font-weight:500;color:var(--text-2);
  transition:color .2s ease;
}
.nav-link::after{
  content:"";position:absolute;left:0;right:0;bottom:-2px;height:2px;
  background:var(--amber);border-radius:2px;
  transform:scaleX(0);transform-origin:left;transition:transform .2s ease;
}
.nav-link:hover{color:var(--ink)}
.nav-link:hover::after,
.nav-link.is-active::after{transform:scaleX(1)}
.nav-link.is-active{color:var(--ink);font-weight:600}
.header-actions{display:flex;align-items:center;gap:16px;flex:none}
.nav-toggle{
  display:none;width:44px;height:44px;flex:none;
  align-items:center;justify-content:center;
  background:var(--card);border:1px solid var(--line);border-radius:10px;color:var(--ink);
  transition:border-color .2s ease,color .2s ease;
}
.nav-toggle:hover{border-color:var(--ink);color:var(--ink-deep)}
.nav-toggle svg{width:20px;height:20px}

.nav-drawer{
  position:fixed;top:0;right:0;bottom:0;width:82%;max-width:340px;z-index:90;
  display:flex;flex-direction:column;gap:8px;padding:20px 20px 28px;
  background:var(--bg);box-shadow:-16px 0 42px rgba(28,23,48,.2);
  transform:translateX(102%);transition:transform .28s ease;
}
.nav-drawer.is-open{transform:translateX(0)}
.drawer-head{display:flex;align-items:center;justify-content:space-between;padding-bottom:16px;border-bottom:1px solid var(--line-soft)}
.drawer-title{font-size:15px;font-weight:700;color:var(--ink)}
.drawer-close{
  width:40px;height:40px;display:flex;align-items:center;justify-content:center;
  background:transparent;border:1px solid var(--line);border-radius:10px;color:var(--ink);
}
.drawer-close:hover{border-color:var(--ink);color:var(--ink-deep)}
.drawer-menu{display:flex;flex-direction:column;margin-top:8px}
.drawer-menu a{
  display:flex;align-items:center;justify-content:space-between;
  height:48px;padding:0 4px;font-size:15px;font-weight:500;color:var(--text-2);
  border-bottom:1px solid var(--line-soft);
}
.drawer-menu a:hover,.drawer-menu a.is-active{color:var(--ink);font-weight:600}
.drawer-menu a.is-active::after{content:"";width:6px;height:6px;border-radius:50%;background:var(--amber)}
.drawer-cta{margin-top:auto}
.nav-overlay{
  position:fixed;inset:0;z-index:80;background:rgba(28,23,48,.46);
  opacity:0;visibility:hidden;transition:opacity .25s ease,visibility .25s ease;
}
.nav-overlay.is-open{opacity:1;visibility:visible}

/* ---------- 页头 ---------- */
.page-hero{
  position:relative;overflow:hidden;
  background:var(--ink-deep);color:#F7F4EE;
  padding:72px 0 80px;
}
.page-hero::before{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:
    radial-gradient(rgba(247,244,238,.13) 1px,transparent 1.7px),
    radial-gradient(rgba(224,160,60,.14) 1px,transparent 1.7px);
  background-size:190px 190px,260px 260px;
  background-position:0 0,90px 70px;
  opacity:.85;
}
.page-hero-inner{position:relative;display:grid;grid-template-columns:1.08fr .92fr;gap:56px;align-items:center}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;letter-spacing:.06em;color:var(--amber);margin-bottom:18px;
}
.eyebrow::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--amber)}
.page-hero h1{
  font-size:48px;line-height:1.24;font-weight:700;letter-spacing:.01em;margin-bottom:18px;
}
.page-hero-lead{
  font-size:16px;line-height:1.85;color:rgba(247,244,238,.78);max-width:36em;margin-bottom:30px;
}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px}
.hero-media{
  position:relative;border-radius:var(--r-img);overflow:hidden;
  border:1px solid rgba(247,244,238,.16);box-shadow:0 18px 40px rgba(0,0,0,.3);
  aspect-ratio:16/10;background:var(--ink);
}
.hero-media img{width:100%;height:100%;object-fit:cover}
.hero-media::after{
  content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(42,35,68,.12),rgba(28,23,48,.32));
}

/* ---------- 板块通用 ---------- */
.section{padding:96px 0}
.section-alt{background:var(--bg-alt)}
.section-head{
  display:flex;align-items:flex-end;justify-content:space-between;gap:24px;
  padding-bottom:36px;margin-bottom:12px;
}
.section-head h2{
  font-size:28px;line-height:1.35;font-weight:700;color:var(--ink);letter-spacing:.01em;
  display:flex;align-items:center;gap:14px;
}
.section-head h2::before{
  content:"";width:3px;height:26px;border-radius:2px;background:var(--amber);flex:none;
}
.section-head.noline h2::before{display:none}
.section-note{font-size:14px;color:var(--text-3);max-width:34em;text-align:right}
.section-lead{font-size:16px;color:var(--text-2);max-width:42em;margin-bottom:36px}

/* ---------- 能力矩阵 ---------- */
.matrix-wrap{
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);
  box-shadow:var(--sh-1);overflow-x:auto;
}
.matrix{width:100%;min-width:780px;border-collapse:collapse;font-size:14px}
.matrix th,.matrix td{padding:16px 18px;text-align:left;border-bottom:1px solid var(--line-soft);border-right:1px solid var(--line-soft);transition:background .2s ease}
.matrix tr th:last-child,.matrix tr td:last-child{border-right:0}
.matrix tbody tr:last-child th,.matrix tbody tr:last-child td{border-bottom:0}
.matrix thead th{
  background:var(--bg-alt);color:var(--ink);font-size:13px;font-weight:600;
  letter-spacing:.05em;white-space:nowrap;
}
.matrix thead th:first-child{color:var(--text-3);font-weight:500}
.matrix tbody th{
  width:180px;font-weight:600;color:var(--ink);font-size:14px;background:#FCFBF8;white-space:nowrap;
}
.matrix tbody td{color:var(--text-2);line-height:1.7}
.matrix tbody tr:hover td{background:#FAF7F1}
.matrix tbody tr:hover th{background:#F5F1E8}

/* ---------- 规格参数 ---------- */
.spec-list{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:0 56px}
.spec-item{
  display:grid;grid-template-columns:104px minmax(0,1fr);gap:16px;
  padding:16px 0;border-bottom:1px solid var(--line-soft);
}
.spec-item dt{font-size:14px;font-weight:600;color:var(--ink);white-space:nowrap}
.spec-item dd{font-size:14px;color:var(--text-2);line-height:1.75}

/* ---------- 交付节奏 ---------- */
.flow-grid{display:grid;grid-template-columns:.92fr 1.08fr;gap:56px;align-items:center}
.flow-media{
  border-radius:var(--r-img);overflow:hidden;border:1px solid var(--line);
  box-shadow:var(--sh-1);aspect-ratio:4/3;background:var(--bg-alt);
}
.flow-media img{width:100%;height:100%;object-fit:cover}
.flow-steps{display:flex;flex-direction:column;gap:8px;counter-reset:step}
.flow-step{
  display:grid;grid-template-columns:auto minmax(0,1fr);gap:18px;
  padding:18px 20px;border-radius:var(--r-card);background:var(--card);
  border:1px solid var(--line);box-shadow:var(--sh-1);
  transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.flow-step:hover{transform:translateY(-2px);box-shadow:var(--sh-2);border-color:rgba(42,35,68,.2)}
.flow-num{
  width:34px;height:34px;border-radius:50%;display:flex;align-items:center;justify-content:center;
  background:var(--ink);color:var(--amber);font-size:14px;font-weight:700;font-variant-numeric:tabular-nums;
}
.flow-step h3{font-size:17px;font-weight:600;color:var(--ink);margin-bottom:4px}
.flow-step p{font-size:14px;color:var(--text-2);line-height:1.7}

/* ---------- 适用团队 ---------- */
.fit-list{display:flex;flex-direction:column;gap:0;border-top:1px solid var(--line)}
.fit-row{
  display:grid;grid-template-columns:52px 220px minmax(0,1fr);gap:24px;align-items:center;
  padding:26px 8px;border-bottom:1px solid var(--line);
  transition:background .2s ease,padding-left .2s ease;
}
.fit-row:hover{background:rgba(255,255,255,.72);padding-left:16px}
.fit-icon{
  width:44px;height:44px;border-radius:12px;display:flex;align-items:center;justify-content:center;
  border:1px solid var(--line);background:var(--card);color:var(--ink);flex:none;
}
.fit-icon svg{width:22px;height:22px}
.fit-row h3{font-size:17px;font-weight:600;color:var(--ink)}
.fit-row p{font-size:15px;color:var(--text-2);line-height:1.8}

/* ---------- FAQ ---------- */
.faq-list{max-width:860px;border-top:1px solid var(--line)}
.faq-item{border-bottom:1px solid var(--line)}
.faq-item summary{
  display:flex;align-items:center;justify-content:space-between;gap:20px;
  padding:22px 4px;cursor:pointer;list-style:none;
  font-size:16px;font-weight:600;color:var(--ink);
  transition:color .2s ease;
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary:hover{color:var(--ink-deep)}
.faq-icon{
  position:relative;flex:none;width:18px;height:18px;color:var(--amber);
  transition:transform .25s ease;
}
.faq-icon::before,.faq-icon::after{
  content:"";position:absolute;background:currentColor;border-radius:1px;
}
.faq-icon::before{left:0;right:0;top:8px;height:2px}
.faq-icon::after{top:0;bottom:0;left:8px;width:2px}
.faq-item[open] .faq-icon{transform:rotate(45deg)}
.faq-answer{padding:0 4px 24px;font-size:14px;line-height:1.85;color:var(--text-2);max-width:46em}

/* ---------- 相关分类 ---------- */
.related-band{
  display:flex;flex-wrap:wrap;align-items:center;gap:12px;
  padding:24px 0;border-top:1px solid var(--line);border-bottom:1px solid var(--line);
}
.related-band .band-title{font-size:14px;font-weight:600;color:var(--ink);margin-right:8px}
.related-link{
  display:inline-flex;align-items:center;gap:8px;
  padding:9px 18px;border-radius:999px;border:1px solid var(--line);
  background:var(--card);font-size:14px;color:var(--text-2);
  transition:border-color .2s ease,color .2s ease,transform .2s ease,box-shadow .2s ease;
}
.related-link:hover{border-color:var(--ink);color:var(--ink);transform:translateY(-2px);box-shadow:var(--sh-1)}
.related-link::after{content:"→";font-size:13px;color:var(--amber)}

/* ---------- CTA ---------- */
.cta-wrap{padding:0 0 96px}
.cta-band{
  position:relative;overflow:hidden;
  display:grid;grid-template-columns:minmax(0,1fr) auto;gap:40px;align-items:center;
  padding:52px 56px;border-radius:var(--r-img);
  background:var(--ink);color:#F7F4EE;box-shadow:0 18px 40px rgba(28,23,48,.18);
}
.cta-band::before{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:radial-gradient(rgba(247,244,238,.12) 1px,transparent 1.7px);
  background-size:170px 170px;
}
.cta-band h2{position:relative;font-size:26px;line-height:1.4;font-weight:700;margin-bottom:10px}
.cta-band p{position:relative;font-size:15px;color:rgba(247,244,238,.76);max-width:34em}
.cta-band .btn{position:relative}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--ink-deep);color:rgba(247,244,238,.76);padding:72px 0 0}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.3fr;gap:48px;padding-bottom:52px}
.footer-brand .brand{color:#F7F4EE;margin-bottom:18px}
.footer-brand .brand-sub{color:rgba(247,244,238,.5)}
.footer-about{font-size:14px;line-height:1.85;max-width:30em;margin-bottom:20px}
.footer-words{display:flex;flex-wrap:wrap;gap:8px}
.footer-words span{
  font-size:12px;padding:5px 12px;border-radius:999px;
  border:1px solid rgba(247,244,238,.18);color:rgba(247,244,238,.66);
}
.footer-col h4{font-size:14px;font-weight:600;color:#F7F4EE;letter-spacing:.06em;margin-bottom:18px}
.footer-col ul{display:flex;flex-direction:column;gap:12px}
.footer-col a{font-size:14px;color:rgba(247,244,238,.72);transition:color .2s ease}
.footer-col a:hover{color:var(--amber)}
.footer-contact li{font-size:14px;line-height:1.8;display:flex;gap:10px}
.footer-contact strong{font-weight:500;color:rgba(247,244,238,.5);flex:none}
.footer-bottom{
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:12px;
  padding:22px 0 30px;border-top:1px solid rgba(247,244,238,.12);
  font-size:13px;color:rgba(247,244,238,.52);
}
.footer-bottom .sep{margin:0 10px;color:rgba(247,244,238,.28)}

/* ---------- 响应式 ---------- */
@media (max-width:1199px){
  .page-hero h1{font-size:42px}
  .nav-menu{gap:22px}
  .footer-grid{grid-template-columns:1.4fr 1fr 1fr;gap:36px}
  .footer-col:last-child{grid-column:1 / -1}
}

@media (max-width:991px){
  .nav-menu,.header-actions{display:none}
  .nav-toggle{display:flex}
  .header-inner{height:64px}
  .section{padding:72px 0}
  .page-hero{padding:56px 0 64px}
  .page-hero-inner{grid-template-columns:1fr;gap:36px}
  .page-hero h1{font-size:36px}
  .hero-media{max-width:560px}
  .flow-grid{grid-template-columns:1fr;gap:36px}
  .spec-list{grid-template-columns:1fr;gap:0}
  .section-head{flex-direction:column;align-items:flex-start;gap:12px;padding-bottom:28px}
  .section-note{text-align:left}
  .fit-row{grid-template-columns:44px minmax(0,1fr);gap:16px}
  .fit-row p{grid-column:1 / -1;padding-left:60px}
  .cta-band{grid-template-columns:1fr;gap:28px;padding:40px 32px}
  .cta-wrap{padding-bottom:72px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:36px}
  .footer-col:last-child{grid-column:auto}
}

@media (max-width:767px){
  .container{padding:0 18px}
  .section{padding:56px 0}
  .page-hero{padding:44px 0 52px}
  .page-hero h1{font-size:30px;letter-spacing:0}
  .page-hero-lead{font-size:15px;margin-bottom:24px}
  .hero-actions .btn{flex:1 1 100%}
  .section-head h2{font-size:22px}
  .section-head h2::before{height:22px}
  .matrix th,.matrix td{padding:13px 14px}
  .spec-item{grid-template-columns:88px minmax(0,1fr);gap:12px}
  .flow-step{padding:16px}
  .faq-item summary{font-size:15px;padding:18px 2px}
  .cta-band{padding:32px 22px}
  .cta-band h2{font-size:21px}
  .cta-band .btn{width:100%}
  .footer-grid{grid-template-columns:1fr;gap:32px;padding-bottom:36px}
  .footer-bottom{flex-direction:column;align-items:flex-start;gap:8px}
  .related-band{gap:10px}
  .related-link{width:100%;justify-content:space-between}
}

@media (max-width:479px){
  .brand-name{font-size:16px}
  .brand-mark{width:30px;height:30px}
  .page-hero h1{font-size:26px}
  .fit-row p{padding-left:0}
  .flow-num{width:30px;height:30px;font-size:13px}
}

/* roulang page: category2 */
:root{
  --ink:#2A2344;
  --ink-deep:#1C1730;
  --cyan:#7FA8B8;
  --amber:#E0A03C;
  --bg:#F7F4EE;
  --bg-alt:#EFEAE1;
  --card:#FFFFFF;
  --text:#23202B;
  --text-2:#5A5566;
  --text-3:#8B8598;
  --line:rgba(42,35,68,.12);
  --line-soft:rgba(42,35,68,.08);
  --r-card:14px;
  --r-btn:10px;
  --r-img:16px;
  --shadow-1:0 1px 2px rgba(28,23,48,.05),0 6px 18px rgba(28,23,48,.06);
  --shadow-2:0 12px 28px rgba(28,23,48,.12);
  --white-90:rgba(247,244,238,.9);
  --white-78:rgba(247,244,238,.78);
  --white-62:rgba(247,244,238,.62);
}
*,*::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","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
  background:var(--bg);
  color:var(--text);
  font-size:16px;
  line-height:1.85;
  letter-spacing:.01em;
  -webkit-font-smoothing:antialiased;
  -moz-osx-font-smoothing:grayscale;
  overflow-x:hidden;
}
h1,h2,h3,h4,p,figure,blockquote{margin:0}
ul,ol{margin:0;padding:0;list-style:none}
img{max-width:100%;display:block;border-style:none}
a{color:inherit;text-decoration:none}
button{font-family:inherit;font-size:inherit;color:inherit}
:focus-visible{outline:2px solid var(--amber);outline-offset:2px;border-radius:4px}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:46px;padding:0 24px;border-radius:var(--r-btn);
  font-size:15px;font-weight:600;letter-spacing:.01em;
  border:1px solid transparent;cursor:pointer;white-space:nowrap;
  transition:background-color .2s ease,color .2s ease,border-color .2s ease,transform .2s ease,box-shadow .2s ease;
}
.btn-primary{background:var(--ink);color:var(--bg)}
.btn-primary:hover{background:var(--ink-deep);transform:translateY(-1px);box-shadow:var(--shadow-2)}
.btn-primary:active{transform:translateY(0);box-shadow:none}
.btn-amber{background:var(--amber);color:#241E38}
.btn-amber:hover{background:#CE8F２E;background:#CE8F2E;transform:translateY(-1px);box-shadow:0 10px 24px rgba(224,160,60,.28)}
.btn-amber:active{transform:translateY(0);box-shadow:none}
.btn-outline-light{background:transparent;color:var(--bg);border-color:rgba(247,244,238,.42)}
.btn-outline-light:hover{background:rgba(247,244,238,.12);border-color:rgba(247,244,238,.72)}
.btn-ghost{background:transparent;color:var(--ink);border-color:rgba(42,35,68,.24)}
.btn-ghost:hover{background:rgba(42,35,68,.06);border-color:rgba(42,35,68,.42)}
.btn:disabled{opacity:.5;cursor:not-allowed;transform:none;box-shadow:none}

/* ============ 头部导航 ============ */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(247,244,238,.96);
  border-bottom:1px solid var(--line-soft);
  transition:box-shadow .25s ease,background-color .25s ease;
}
.site-header.is-scrolled{box-shadow:0 6px 20px rgba(28,23,48,.09)}
.header-inner{display:flex;align-items:center;justify-content:space-between;gap:24px;height:72px}
.brand{display:flex;align-items:center;gap:10px;color:var(--ink);flex:none}
.brand-mark{width:32px;height:32px;flex:none;color:var(--ink);transition:transform .4s ease}
.brand:hover .brand-mark{transform:rotate(-12deg)}
.brand-text{display:flex;align-items:baseline;gap:7px;line-height:1}
.brand-name{font-size:19px;font-weight:700;letter-spacing:.02em}
.brand-sub{font-size:11px;letter-spacing:.22em;color:var(--text-3)}
.nav-menu{display:flex;align-items:center;gap:28px}
.nav-link{
  position:relative;display:inline-block;
  padding:6px 0;font-size:15px;font-weight:500;color:var(--text-2);
  transition:color .2s ease;
}
.nav-link::after{
  content:"";position:absolute;left:0;bottom:0;width:0;height:2px;
  background:var(--amber);transition:width .22s ease;
}
.nav-link:hover{color:var(--ink)}
.nav-link:hover::after{width:100%}
.nav-link.is-active{color:var(--ink);font-weight:600}
.nav-link.is-active::after{width:100%}
.header-actions{display:flex;align-items:center;gap:16px}
.header-actions .link-quiet{font-size:14px;color:var(--text-2);transition:color .2s ease}
.header-actions .link-quiet:hover{color:var(--ink)}
.nav-toggle{
  display:none;width:44px;height:44px;flex:none;
  align-items:center;justify-content:center;
  border:1px solid rgba(42,35,68,.18);border-radius:10px;
  background:transparent;cursor:pointer;color:var(--ink);
  transition:background-color .2s ease,border-color .2s ease;
}
.nav-toggle:hover{background:rgba(42,35,68,.06);border-color:rgba(42,35,68,.34)}
.nav-toggle span{display:block;width:18px;height:2px;background:currentColor;position:relative;border-radius:2px}
.nav-toggle span::before,.nav-toggle span::after{content:"";position:absolute;left:0;width:18px;height:2px;background:currentColor;border-radius:2px}
.nav-toggle span::before{top:-6px}
.nav-toggle span::after{top:6px}
.nav-mask{
  position:fixed;inset:0;background:rgba(28,23,48,.5);
  opacity:0;visibility:hidden;transition:opacity .3s ease,visibility .3s ease;z-index:70;
}
.nav-mask.is-open{opacity:1;visibility:visible}
.drawer-cta,.drawer-close{display:none}

/* ============ 页头 ============ */
.page-head{
  position:relative;overflow:hidden;
  background:var(--ink);color:var(--bg);
  padding:72px 0 80px;
}
.page-head::before{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:
    radial-gradient(circle,rgba(247,244,238,.9) 1px,transparent 1.4px),
    radial-gradient(circle,rgba(247,244,238,.7) 1px,transparent 1.4px);
  background-size:220px 220px,340px 340px;
  background-position:12px 26px,140px 160px;
  opacity:.11;
}
.page-head::after{
  content:"";position:absolute;right:-140px;top:-120px;width:480px;height:480px;border-radius:50%;
  background:radial-gradient(circle,rgba(127,168,184,.26),transparent 68%);
  pointer-events:none;
}
.page-head .container{position:relative;z-index:1}
.crumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--white-62);margin-bottom:22px}
.crumb a{transition:color .2s ease}
.crumb a:hover{color:var(--amber)}
.crumb .sep{opacity:.5}
.eyebrow{display:inline-flex;align-items:center;gap:9px;font-size:13px;letter-spacing:.08em;color:var(--amber);margin-bottom:18px}
.eyebrow::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--amber);flex:none}
.page-head h1{
  font-size:46px;line-height:1.24;font-weight:700;letter-spacing:.01em;
  margin-bottom:22px;max-width:820px;
}
.page-head .lead{
  max-width:760px;font-size:16.5px;line-height:1.95;color:var(--white-78);
}
.head-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:34px}

/* ============ 模块区 ============ */
.modules{padding:88px 0 96px}
.modules-intro{max-width:720px;margin-bottom:64px}
.kicker{
  display:inline-flex;align-items:center;gap:10px;
  font-size:13px;font-weight:600;letter-spacing:.12em;color:var(--ink);margin-bottom:14px;
}
.kicker::before{content:"";width:24px;height:2px;background:var(--amber);flex:none}
.modules-intro p{font-size:16px;color:var(--text-2);line-height:1.9}
.module-row{
  display:grid;grid-template-columns:1fr 1fr;gap:64px;align-items:center;
  margin-bottom:88px;
}
.module-row:last-child{margin-bottom:0}
.module-row.is-reverse .module-copy{order:2}
.module-row.is-reverse .module-media{order:1}
.module-media{position:relative}
.module-media img{
  width:100%;aspect-ratio:4/3;object-fit:cover;
  border-radius:var(--r-img);border:1px solid var(--line);
  box-shadow:var(--shadow-1);
  transition:transform .35s ease,box-shadow .35s ease;
}
.module-media img:hover{transform:translateY(-3px);box-shadow:var(--shadow-2)}
.module-index{
  display:block;font-size:13px;letter-spacing:.14em;color:var(--text-3);
  margin-bottom:16px;font-variant-numeric:tabular-nums;
}
.module-copy h2{font-size:28px;line-height:1.42;font-weight:700;color:var(--ink);margin-bottom:18px}
.module-copy > p{font-size:15.5px;color:var(--text-2);line-height:1.9;max-width:540px;margin-bottom:24px}
.point-list li{
  position:relative;padding-left:22px;
  font-size:15px;line-height:1.9;color:var(--text-2);margin-bottom:12px;
}
.point-list li:last-child{margin-bottom:0}
.point-list li::before{
  content:"";position:absolute;left:0;top:12px;
  width:7px;height:7px;border-radius:50%;
  border:1.5px solid var(--cyan);
}
.metric{
  display:flex;align-items:baseline;flex-wrap:wrap;gap:6px 14px;
  margin-top:28px;padding-top:22px;border-top:1px solid var(--line-soft);
}
.metric-num{
  font-size:34px;font-weight:700;line-height:1;color:var(--amber);
  font-variant-numeric:tabular-nums;letter-spacing:0;
}
.metric-num em{font-size:15px;font-style:normal;margin-left:3px;font-weight:600}
.metric-label{font-size:14px;color:var(--text-2);line-height:1.7}

/* ============ 集成能力 ============ */
.capability{background:var(--bg-alt);padding:88px 0}
.section-head{max-width:720px;margin-bottom:44px}
.section-head h2{font-size:28px;line-height:1.42;font-weight:700;color:var(--ink);margin-bottom:14px}
.section-head p{font-size:15.5px;color:var(--text-2);line-height:1.9}
.cap-grid{
  display:grid;grid-template-columns:repeat(3,1fr);gap:1px;
  background:var(--line);border:1px solid var(--line);
  border-radius:var(--r-card);overflow:hidden;
}
.cap-item{background:var(--card);padding:28px 26px;transition:background-color .22s ease}
.cap-item:hover{background:#FBF9F5}
.cap-item h3{
  display:flex;align-items:center;gap:10px;
  font-size:17px;font-weight:600;color:var(--ink);margin-bottom:9px;
}
.cap-item h3::before{
  content:"";width:8px;height:8px;flex:none;border-radius:2px;
  background:var(--cyan);transform:rotate(45deg);transition:background-color .22s ease;
}
.cap-item:hover h3::before{background:var(--amber)}
.cap-item p{font-size:14px;line-height:1.8;color:var(--text-2)}

/* ============ 常见问题 ============ */
.faq{padding:88px 0}
.faq-layout{display:grid;grid-template-columns:300px 1fr;gap:64px;align-items:start}
.faq-head h2{font-size:28px;line-height:1.42;font-weight:700;color:var(--ink);margin-bottom:14px}
.faq-head p{font-size:15px;color:var(--text-2);line-height:1.9}
.faq-head .faq-note{
  display:inline-flex;align-items:center;gap:8px;margin-top:22px;
  font-size:13px;color:var(--text-3);
}
.faq-head .faq-note::before{content:"";width:16px;height:1px;background:var(--amber);flex:none}
.faq-item{border-top:1px solid var(--line)}
.faq-item:last-child{border-bottom:1px solid var(--line)}
.faq-item summary{
  display:flex;align-items:center;justify-content:space-between;gap:20px;
  padding:22px 0;cursor:pointer;list-style:none;
  font-size:16px;font-weight:600;color:var(--ink);
  transition:color .2s ease;
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary:hover{color:var(--ink-deep)}
.faq-icon{position:relative;width:16px;height:16px;flex:none}
.faq-icon::before,.faq-icon::after{
  content:"";position:absolute;background:var(--text-2);border-radius:2px;
  transition:transform .26s ease,opacity .26s ease,background-color .2s ease;
}
.faq-icon::before{left:0;top:7px;width:16px;height:1.5px}
.faq-icon::after{left:7px;top:0;width:1.5px;height:16px}
.faq-item[open] .faq-icon::before{background:var(--amber)}
.faq-item[open] .faq-icon::after{transform:rotate(90deg);opacity:0}
.faq-answer{padding:0 0 24px;font-size:14.5px;line-height:1.88;color:var(--text-2);max-width:720px}

/* ============ 相关分类 ============ */
.related{padding:0 0 96px}
.related h2{font-size:22px;font-weight:700;color:var(--ink);margin-bottom:8px}
.related .related-sub{font-size:14px;color:var(--text-3)}
.related-links{display:grid;grid-template-columns:repeat(4,1fr);gap:16px;margin-top:32px}
.related-link{
  display:flex;align-items:center;justify-content:space-between;gap:12px;
  padding:20px 22px;background:var(--card);
  border:1px solid var(--line);border-radius:var(--r-card);
  font-size:15px;font-weight:600;color:var(--ink);
  transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.related-link:hover{transform:translateY(-2px);box-shadow:var(--shadow-2);border-color:rgba(42,35,68,.26)}
.related-arrow{color:var(--amber);transition:transform .2s ease;flex:none}
.related-link:hover .related-arrow{transform:translateX(4px)}

/* ============ CTA ============ */
.cta-band{
  position:relative;overflow:hidden;
  background:var(--ink);color:var(--bg);padding:72px 0;
}
.cta-band::before{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:radial-gradient(circle,rgba(247,244,238,.9) 1px,transparent 1.4px);
  background-size:200px 200px;background-position:20px 30px;
  opacity:.1;
}
.cta-inner{
  position:relative;z-index:1;
  display:flex;align-items:center;justify-content:space-between;gap:44px;flex-wrap:wrap;
}
.cta-copy h2{font-size:28px;line-height:1.4;font-weight:700;color:var(--bg);margin-bottom:12px}
.cta-copy p{font-size:15px;color:var(--white-78);max-width:540px;line-height:1.85}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px}

/* ============ 页脚 ============ */
.site-footer{background:var(--ink-deep);color:var(--white-78);padding:64px 0 0}
.footer-grid{
  display:grid;grid-template-columns:1.6fr 1fr 1fr 1.25fr;gap:48px;
  padding-bottom:48px;
}
.footer-brand .brand{color:var(--bg);margin-bottom:18px}
.footer-brand .brand-mark{color:var(--bg)}
.footer-brand .brand-sub{color:rgba(247,244,238,.45)}
.footer-about{font-size:14px;line-height:1.85;color:rgba(247,244,238,.66);max-width:330px}
.footer-words{display:flex;flex-wrap:wrap;gap:8px;margin-top:20px}
.footer-words span{
  font-size:12px;padding:5px 12px;border-radius:999px;
  border:1px solid rgba(247,244,238,.18);color:rgba(247,244,238,.72);
  transition:border-color .2s ease,color .2s ease;
}
.footer-words span:hover{border-color:rgba(224,160,60,.55);color:var(--amber)}
.footer-col h4{font-size:14px;font-weight:600;color:var(--bg);margin-bottom:18px;letter-spacing:.04em}
.footer-col ul li{margin-bottom:12px;font-size:14px;line-height:1.8}
.footer-col ul li:last-child{margin-bottom:0}
.footer-col a{color:rgba(247,244,238,.7);transition:color .2s ease}
.footer-col a:hover{color:var(--amber)}
.footer-contact li{font-size:14px;color:rgba(247,244,238,.7)}
.footer-contact strong{display:inline-block;min-width:42px;font-weight:500;color:rgba(247,244,238,.42);margin-right:8px}
.footer-bottom{
  display:flex;justify-content:space-between;flex-wrap:wrap;gap:12px;
  padding:22px 0;border-top:1px solid rgba(247,244,238,.12);
  font-size:13px;color:rgba(247,244,238,.5);
}
.footer-bottom .sep{margin:0 10px;opacity:.5}

/* ============ 响应式 ============ */
@media (max-width:1199px){
  .module-row{gap:48px}
  .faq-layout{grid-template-columns:260px 1fr;gap:48px}
  .footer-grid{gap:36px}
}

@media (max-width:1023px){
  .nav-toggle{display:inline-flex}
  .header-actions .link-quiet{display:none}
  .nav-menu{
    position:fixed;top:0;right:0;width:82%;max-width:380px;height:100vh;
    background:var(--bg);flex-direction:column;align-items:stretch;gap:0;
    padding:88px 24px 32px;z-index:80;overflow-y:auto;
    transform:translateX(102%);
    transition:transform .32s cubic-bezier(.4,0,.2,1);
    box-shadow:-14px 0 34px rgba(28,23,48,.2);
  }
  .nav-menu.is-open{transform:translateX(0)}
  .nav-link{display:flex;align-items:center;height:48px;font-size:16px;border-bottom:1px solid var(--line-soft);padding:0}
  .nav-link::after{display:none}
  .nav-link.is-active{color:var(--ink);font-weight:600;border-bottom-color:rgba(224,160,60,.5)}
  .drawer-cta{display:inline-flex;margin-top:26px;width:100%}
  .drawer-close{
    display:inline-flex;position:absolute;top:22px;right:22px;
    width:40px;height:40px;align-items:center;justify-content:center;
    border-radius:10px;border:1px solid rgba(42,35,68,.16);
    background:transparent;cursor:pointer;color:var(--ink);
    transition:background-color .2s ease;
  }
  .drawer-close:hover{background:rgba(42,35,68,.07)}
}

@media (max-width:991px){
  .page-head{padding:56px 0 64px}
  .page-head h1{font-size:36px}
  .module-row{grid-template-columns:1fr;gap:32px}
  .module-row.is-reverse .module-copy{order:1}
  .module-row.is-reverse .module-media{order:2}
  .module-copy h2{font-size:25px}
  .module-copy > p{max-width:none}
  .cap-grid{grid-template-columns:repeat(2,1fr)}
  .faq-layout{grid-template-columns:1fr;gap:32px}
  .related-links{grid-template-columns:repeat(2,1fr)}
  .footer-grid{grid-template-columns:1fr 1fr}
  .cta-inner{flex-direction:column;align-items:flex-start}
}

@media (max-width:767px){
  .container{padding:0 18px}
  .header-inner{height:64px}
  .brand-name{font-size:17px}
  .brand-mark{width:28px;height:28px}
  .page-head{padding:40px 0 52px}
  .page-head h1{font-size:30px;line-height:1.3}
  .page-head .lead{font-size:15.5px}
  .head-actions{width:100%;flex-direction:column}
  .head-actions .btn{width:100%}
  .modules{padding:56px 0 64px}
  .modules-intro{margin-bottom:40px}
  .module-row{margin-bottom:56px}
  .module-copy h2{font-size:23px}
  .metric-num{font-size:30px}
  .capability{padding:56px 0}
  .cap-grid{grid-template-columns:1fr}
  .cap-item{padding:22px 20px}
  .section-head h2{font-size:23px}
  .faq{padding:56px 0}
  .faq-head h2{font-size:23px}
  .faq-item summary{font-size:15px;padding:18px 0}
  .related{padding:0 0 64px}
  .related-links{grid-template-columns:1fr}
  .cta-band{padding:52px 0}
  .cta-copy h2{font-size:23px}
  .cta-actions{width:100%;flex-direction:column}
  .cta-actions .btn{width:100%}
  .site-footer{padding-top:48px}
  .footer-grid{grid-template-columns:1fr;gap:32px;padding-bottom:36px}
  .footer-bottom{font-size:12px}
}

@media (max-width:479px){
  .page-head h1{font-size:26px}
  .module-copy h2{font-size:21px}
  .lead{font-size:14.5px}
  .metric{flex-direction:column;align-items:flex-start;gap:8px}
  .nav-menu{width:88%}
}

/* roulang page: category3 */
:root{
  --ink:#2A2344;
  --ink-deep:#1C1730;
  --teal:#7FA8B8;
  --amber:#E0A03C;
  --amber-dark:#B77817;
  --bg:#F7F4EE;
  --card:#FFFFFF;
  --bg-soft:#EFEAE1;
  --text:#23202B;
  --muted:#5A5566;
  --weak:#8B8598;
  --line:rgba(42,35,68,.12);
  --line-soft:rgba(42,35,68,.08);
  --radius:14px;
  --radius-btn:10px;
  --radius-img:16px;
  --shadow:0 1px 2px rgba(28,23,48,.05),0 6px 18px rgba(28,23,48,.06);
  --shadow-hover:0 12px 28px rgba(28,23,48,.12);
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  font-family:"Noto Sans SC","PingFang SC","Microsoft YaHei",system-ui,sans-serif;
  background:var(--bg);
  color:var(--text);
  font-size:16px;
  line-height:1.85;
  -webkit-font-smoothing:antialiased;
}
body.no-scroll{overflow:hidden}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
button,input,textarea,select{font:inherit}
button{cursor:pointer}
h1,h2,h3,h4,p,ul,ol,figure{margin:0}
ul,ol{padding:0}
a:focus-visible,
button:focus-visible,
summary:focus-visible,
input:focus-visible,
textarea:focus-visible{
  outline:2px solid var(--amber);
  outline-offset:2px;
}
.container{
  width:100%;
  max-width:1200px;
  margin:0 auto;
  padding:0 24px;
}
.section{padding:96px 0}
.section-soft{background:var(--bg-soft)}
.section-head{
  display:flex;
  align-items:flex-end;
  justify-content:space-between;
  gap:24px;
  margin-bottom:40px;
}
.section-kicker{
  display:inline-flex;
  align-items:center;
  gap:8px;
  font-size:13px;
  line-height:1.6;
  letter-spacing:.08em;
  color:var(--amber-dark);
  font-weight:600;
  margin-bottom:10px;
}
.section-kicker::before{
  content:"";
  width:6px;
  height:6px;
  border-radius:50%;
  background:var(--amber);
}
.section-head h2{
  font-size:28px;
  line-height:1.35;
  letter-spacing:.01em;
  color:var(--ink);
}
.section-note{
  max-width:360px;
  font-size:14px;
  line-height:1.8;
  color:var(--muted);
}

/* header */
.site-header{
  position:fixed;
  top:0;
  left:0;
  width:100%;
  z-index:100;
  background:transparent;
  border-bottom:1px solid transparent;
  transition:background .25s ease,border-color .25s ease,box-shadow .25s ease;
}
.site-header.is-scrolled{
  background:rgba(28,23,48,.96);
  border-bottom-color:rgba(247,244,238,.1);
  box-shadow:0 8px 24px rgba(28,23,48,.18);
}
.header-inner{
  height:72px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:24px;
}
.brand{
  display:inline-flex;
  align-items:center;
  gap:10px;
  color:#F7F4EE;
  flex:0 0 auto;
}
.brand-mark{
  width:34px;
  height:34px;
  color:var(--amber);
  flex:0 0 auto;
}
.brand-text{display:flex;flex-direction:column;line-height:1.15}
.brand-name{font-size:17px;font-weight:700;letter-spacing:.02em}
.brand-sub{font-size:10px;letter-spacing:.24em;opacity:.65;margin-top:3px}
.nav-menu{display:flex;align-items:center;gap:28px}
.nav-link{
  position:relative;
  font-size:15px;
  font-weight:500;
  color:rgba(247,244,238,.78);
  padding:8px 0;
  transition:color .2s ease;
}
.nav-link::after{
  content:"";
  position:absolute;
  left:0;
  right:0;
  bottom:0;
  height:2px;
  background:var(--amber);
  transform:scaleX(0);
  transform-origin:left;
  transition:transform .2s ease;
}
.nav-link:hover{color:#FFF}
.nav-link:hover::after{transform:scaleX(1)}
.nav-link.is-active{color:#FFF}
.nav-link.is-active::after{transform:scaleX(1)}
.header-actions{display:flex;align-items:center;gap:14px;flex:0 0 auto}
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  min-height:46px;
  padding:12px 24px;
  border:1px solid transparent;
  border-radius:var(--radius-btn);
  font-size:15px;
  font-weight:600;
  line-height:1.2;
  transition:background .2s ease,color .2s ease,border-color .2s ease,transform .2s ease,box-shadow .2s ease;
}
.btn:hover{transform:translateY(-1px)}
.btn:active{transform:translateY(0)}
.btn-primary{
  background:var(--amber);
  color:#231A0A;
}
.btn-primary:hover{background:#F0B252;box-shadow:0 8px 18px rgba(224,160,60,.24)}
.btn-light{
  background:#F7F4EE;
  color:var(--ink);
}
.btn-light:hover{background:#FFF;box-shadow:0 8px 18px rgba(0,0,0,.16)}
.btn-outline-light{
  background:transparent;
  border-color:rgba(247,244,238,.4);
  color:#F7F4EE;
}
.btn-outline-light:hover{border-color:var(--amber);color:var(--amber)}
.btn-sm{min-height:40px;padding:9px 18px;font-size:14px}
.btn-block{width:100%}
.menu-toggle{
  display:none;
  width:44px;
  height:44px;
  padding:0;
  border:1px solid rgba(247,244,238,.24);
  border-radius:10px;
  background:transparent;
  flex-direction:column;
  align-items:center;
  justify-content:center;
  gap:5px;
  transition:border-color .2s ease;
}
.menu-toggle span{
  display:block;
  width:20px;
  height:2px;
  border-radius:2px;
  background:#F7F4EE;
  transition:background .2s ease;
}
.menu-toggle:hover{border-color:var(--amber)}
.menu-toggle:hover span{background:var(--amber)}
.drawer-mask{
  position:fixed;
  inset:0;
  z-index:110;
  background:rgba(28,23,48,.56);
  opacity:0;
  pointer-events:none;
  transition:opacity .25s ease;
}
.drawer-mask.is-open{opacity:1;pointer-events:auto}
.mobile-drawer{
  position:fixed;
  top:0;
  right:0;
  z-index:120;
  width:82%;
  max-width:360px;
  height:100dvh;
  padding:20px 22px 24px;
  display:flex;
  flex-direction:column;
  gap:18px;
  overflow-y:auto;
  background:var(--ink-deep);
  color:#F7F4EE;
  transform:translateX(102%);
  transition:transform .28s ease;
}
.mobile-drawer.is-open{transform:translateX(0)}
.drawer-head{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  font-size:16px;
  font-weight:700;
}
.drawer-close{
  width:40px;
  height:40px;
  padding:0;
  border:1px solid rgba(247,244,238,.22);
  border-radius:10px;
  background:transparent;
  color:#FFF;
  font-size:24px;
  line-height:1;
}
.drawer-close:hover{border-color:var(--amber);color:var(--amber)}
.drawer-nav{display:flex;flex-direction:column;gap:4px;margin-top:6px}
.drawer-link{
  display:flex;
  align-items:center;
  min-height:48px;
  padding:0 12px;
  border-radius:8px;
  font-size:15px;
  color:rgba(247,244,238,.78);
  transition:background .2s ease,color .2s ease;
}
.drawer-link:hover{background:rgba(247,244,238,.06);color:#FFF}
.drawer-link.is-active{
  background:rgba(224,160,60,.12);
  color:var(--amber);
  box-shadow:inset 2px 0 0 var(--amber);
}
.mobile-drawer .btn{margin-top:auto}

/* page hero */
.page-hero{
  position:relative;
  overflow:hidden;
  color:#F7F4EE;
  padding:142px 0 76px;
  background-color:var(--ink);
  background-image:
    linear-gradient(115deg,rgba(28,23,48,.97) 0%,rgba(42,35,68,.88) 64%,rgba(42,35,68,.76) 100%),
    radial-gradient(circle,rgba(224,160,60,.22) 1px,transparent 1.6px),
    url("/assets/images/backpic/back-1.webp");
  background-size:auto,180px 180px,cover;
  background-position:center,0 0,center center;
}
.page-hero::after{
  content:"";
  position:absolute;
  right:-120px;
  bottom:-160px;
  width:420px;
  height:420px;
  border:1px solid rgba(127,168,184,.16);
  border-radius:50%;
  pointer-events:none;
}
.page-hero .container{position:relative;z-index:1}
.breadcrumb{
  display:flex;
  align-items:center;
  flex-wrap:wrap;
  gap:8px;
  margin-bottom:24px;
  font-size:13px;
  color:rgba(247,244,238,.58);
}
.breadcrumb a{color:rgba(247,244,238,.7);transition:color .2s ease}
.breadcrumb a:hover{color:var(--amber)}
.breadcrumb span{color:rgba(247,244,238,.34)}
.eyebrow{
  display:inline-flex;
  align-items:center;
  gap:9px;
  font-size:13px;
  font-weight:500;
  letter-spacing:.06em;
  color:rgba(247,244,238,.72);
  margin-bottom:18px;
}
.eyebrow .dot{
  width:6px;
  height:6px;
  border-radius:50%;
  background:var(--amber);
  box-shadow:0 0 0 4px rgba(224,160,60,.12);
}
.page-hero h1{
  max-width:900px;
  font-size:46px;
  line-height:1.28;
  letter-spacing:.01em;
  color:#FFF;
}
.hero-lead{
  max-width:790px;
  margin-top:22px;
  font-size:17px;
  line-height:1.9;
  color:rgba(247,244,238,.78);
}
.hero-actions{
  display:flex;
  flex-wrap:wrap;
  gap:14px;
  margin-top:30px;
}
.hero-points{
  display:flex;
  flex-wrap:wrap;
  gap:14px 28px;
  margin-top:34px;
  list-style:none;
  font-size:13px;
  color:rgba(247,244,238,.7);
}
.hero-points li{display:inline-flex;align-items:center;gap:8px}
.hero-points li::before{
  content:"";
  width:5px;
  height:5px;
  border-radius:50%;
  background:var(--teal);
}

/* timeline */
.scene-tabs{
  display:flex;
  flex-wrap:wrap;
  gap:10px;
  margin-bottom:44px;
}
.scene-tab{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  min-height:40px;
  padding:8px 18px;
  border:1px solid var(--line);
  border-radius:999px;
  background:#FFF;
  color:var(--muted);
  font-size:14px;
  font-weight:500;
  transition:border-color .2s ease,background .2s ease,color .2s ease;
}
.scene-tab:hover{border-color:var(--ink);color:var(--ink)}
.scene-tab.is-active{background:var(--ink);border-color:var(--ink);color:#F7F4EE}
.scene-layout{
  display:grid;
  grid-template-columns:minmax(0,1fr) 380px;
  gap:52px;
  align-items:start;
}
.timeline-list{
  position:relative;
  list-style:none;
  margin:0;
  padding:0 0 0 36px;
}
.timeline-list::before{
  content:"";
  position:absolute;
  left:7px;
  top:8px;
  bottom:8px;
  width:1px;
  background:var(--line);
}
.timeline-item{
  position:relative;
  padding-bottom:40px;
}
.timeline-item:last-child{padding-bottom:0}
.timeline-item::before{
  content:"";
  position:absolute;
  left:-36px;
  top:7px;
  width:15px;
  height:15px;
  border-radius:50%;
  background:var(--amber);
  box-shadow:0 0 0 5px rgba(224,160,60,.16);
}
.timeline-item h3{
  margin-bottom:12px;
  font-size:20px;
  line-height:1.5;
  color:var(--ink);
}
.psr-row{
  display:flex;
  align-items:flex-start;
  gap:12px;
  padding:10px 0;
  border-top:1px solid var(--line-soft);
}
.psr-label{
  flex:0 0 auto;
  display:inline-flex;
  align-items:center;
  justify-content:center;
  min-width:44px;
  padding:3px 9px;
  border-radius:999px;
  background:var(--bg-soft);
  color:var(--ink);
  font-size:12px;
  font-weight:600;
  line-height:1.7;
}
.psr-row.result .psr-label{
  background:rgba(224,160,60,.14);
  color:#8A5A0E;
}
.psr-row p{
  font-size:15px;
  line-height:1.8;
  color:var(--muted);
}
.timeline-visual{position:sticky;top:104px}
.timeline-visual img{
  width:100%;
  aspect-ratio:4/3;
  object-fit:cover;
  border:1px solid var(--line);
  border-radius:var(--radius-img);
  box-shadow:var(--shadow);
}
.timeline-visual figcaption{
  margin-top:12px;
  font-size:12px;
  line-height:1.7;
  color:var(--weak);
}

/* metrics */
.section-dark{
  position:relative;
  overflow:hidden;
  padding:72px 0;
  background-color:var(--ink);
  color:#F7F4EE;
  background-image:radial-gradient(circle,rgba(224,160,60,.16) 1px,transparent 1.6px);
  background-size:160px 160px;
}
.section-dark .container{position:relative;z-index:1}
.metrics-intro{
  display:flex;
  align-items:flex-end;
  justify-content:space-between;
  gap:24px;
  margin-bottom:36px;
}
.metrics-intro h2{font-size:28px;line-height:1.4;color:#FFF}
.metrics-intro p{max-width:380px;font-size:14px;line-height:1.8;color:rgba(247,244,238,.66)}
.metrics-grid{
  display:grid;
  grid-template-columns:repeat(4,minmax(0,1fr));
  gap:24px;
}
.metric{
  padding-left:22px;
  border-left:1px solid rgba(247,244,238,.16);
}
.metric:first-child{padding-left:0;border-left:0}
.metric-num{
  display:block;
  font-size:38px;
  line-height:1.2;
  font-weight:700;
  color:var(--amber);
  font-variant-numeric:tabular-nums;
}
.metric-label{
  display:block;
  margin-top:8px;
  font-size:14px;
  line-height:1.7;
  color:rgba(247,244,238,.68);
}

/* split modules */
.split{
  display:grid;
  grid-template-columns:minmax(0,1fr) minmax(0,1fr);
  gap:56px;
  align-items:center;
}
.split-media img{
  width:100%;
  aspect-ratio:16/11;
  object-fit:cover;
  border:1px solid var(--line);
  border-radius:var(--radius-img);
  box-shadow:var(--shadow);
}
.split-text h2{
  font-size:30px;
  line-height:1.35;
  color:var(--ink);
  margin-bottom:14px;
}
.split-text .lead{
  font-size:15px;
  line-height:1.9;
  color:var(--muted);
}
.feature-bars{margin-top:28px}
.feature-bar{
  display:flex;
  align-items:flex-start;
  gap:16px;
  padding:18px 0;
  border-top:1px solid var(--line-soft);
}
.feature-icon{
  flex:0 0 auto;
  width:40px;
  height:40px;
  display:grid;
  place-items:center;
  border:1px solid var(--line);
  border-radius:12px;
  background:#FFF;
  color:var(--ink);
}
.feature-icon svg{width:20px;height:20px}
.feature-bar h3{
  font-size:17px;
  line-height:1.5;
  color:var(--ink);
  margin-bottom:4px;
}
.feature-bar p{font-size:14px;line-height:1.7;color:var(--muted)}

/* steps */
.steps-grid{
  display:grid;
  grid-template-columns:repeat(4,minmax(0,1fr));
  gap:26px;
}
.step{
  padding-top:20px;
  border-top:2px solid var(--line);
  transition:border-color .2s ease,transform .2s ease;
}
.step:hover{border-top-color:var(--amber);transform:translateY(-2px)}
.step-num{
  display:block;
  margin-bottom:12px;
  font-size:12px;
  font-weight:700;
  letter-spacing:.12em;
  color:var(--amber-dark);
  font-variant-numeric:tabular-nums;
}
.step h3{font-size:17px;line-height:1.5;color:var(--ink);margin-bottom:8px}
.step p{font-size:14px;line-height:1.8;color:var(--muted)}

/* faq */
.faq-list{
  max-width:820px;
  margin:0 auto;
  border-top:1px solid var(--line);
}
.faq-item{border-bottom:1px solid var(--line)}
.faq-item summary{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:24px;
  padding:22px 0;
  list-style:none;
  cursor:pointer;
  font-size:16px;
  font-weight:600;
  line-height:1.6;
  color:var(--text);
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::after{
  content:"+";
  flex:0 0 auto;
  font-size:22px;
  font-weight:300;
  line-height:1;
  color:var(--ink);
  transition:transform .2s ease,color .2s ease;
}
.faq-item[open] summary::after{transform:rotate(45deg);color:var(--amber)}
.faq-answer{
  max-width:720px;
  padding:0 0 22px;
  font-size:14px;
  line-height:1.85;
  color:var(--muted);
}

/* related links */
.related-links{
  display:flex;
  flex-wrap:wrap;
  gap:12px;
}
.related-link{
  display:inline-flex;
  align-items:center;
  justify-content:space-between;
  gap:14px;
  min-height:48px;
  padding:10px 18px;
  border:1px solid var(--line);
  border-radius:999px;
  background:#FFF;
  color:var(--ink);
  font-size:14px;
  font-weight:500;
  transition:background .2s ease,color .2s ease,border-color .2s ease,transform .2s ease;
}
.related-link::after{content:"→";color:var(--amber-dark)}
.related-link:hover{
  background:var(--ink);
  border-color:var(--ink);
  color:#F7F4EE;
  transform:translateY(-2px);
}
.related-link:hover::after{color:var(--amber)}

/* cta */
.cta-wrap{padding:0 0 96px}
.cta-card{
  position:relative;
  overflow:hidden;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:36px;
  padding:56px;
  border-radius:var(--radius-img);
  background-color:var(--ink);
  background-image:
    radial-gradient(circle,rgba(224,160,60,.18) 1px,transparent 1.6px),
    linear-gradient(135deg,rgba(42,35,68,1),rgba(28,23,48,1));
  background-size:140px 140px,auto;
  color:#F7F4EE;
}
.cta-card::after{
  content:"";
  position:absolute;
  right:-90px;
  top:-130px;
  width:320px;
  height:320px;
  border:1px solid rgba(127,168,184,.16);
  border-radius:50%;
  pointer-events:none;
}
.cta-copy{position:relative;z-index:1;max-width:640px}
.cta-copy h2{font-size:28px;line-height:1.4;color:#FFF;margin-bottom:10px}
.cta-copy p{font-size:15px;line-height:1.8;color:rgba(247,244,238,.72)}
.cta-actions{position:relative;z-index:1;display:flex;flex-direction:column;align-items:flex-start;gap:10px;flex:0 0 auto}
.cta-actions small{font-size:12px;color:rgba(247,244,238,.52);line-height:1.6}

/* footer */
.site-footer{
  padding:64px 0 0;
  background:var(--ink-deep);
  color:#F7F4EE;
}
.footer-grid{
  display:grid;
  grid-template-columns:1.4fr .8fr .8fr 1fr;
  gap:40px;
}
.footer-brand .brand{margin-bottom:16px}
.footer-about{
  max-width:320px;
  font-size:14px;
  line-height:1.8;
  color:rgba(247,244,238,.64);
}
.footer-words{
  display:flex;
  flex-wrap:wrap;
  gap:8px;
  margin-top:16px;
}
.footer-words span{
  padding:4px 9px;
  border:1px solid rgba(247,244,238,.18);
  border-radius:999px;
  font-size:12px;
  line-height:1.6;
  color:rgba(247,244,238,.7);
}
.footer-col h4{
  margin-bottom:16px;
  font-size:14px;
  font-weight:600;
  color:#FFF;
}
.footer-col ul{list-style:none}
.footer-col li{margin-bottom:10px}
.footer-col a{
  font-size:14px;
  line-height:1.7;
  color:rgba(247,244,238,.66);
  transition:color .2s ease;
}
.footer-col a:hover{color:var(--amber)}
.footer-contact li{
  display:flex;
  gap:8px;
  margin-bottom:8px;
  font-size:13px;
  line-height:1.7;
  color:rgba(247,244,238,.66);
}
.footer-contact strong{
  flex:0 0 34px;
  font-weight:500;
  color:rgba(247,244,238,.42);
}
.footer-bottom{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  flex-wrap:wrap;
  margin-top:48px;
  padding:20px 0;
  border-top:1px solid rgba(247,244,238,.12);
  font-size:12px;
  color:rgba(247,244,238,.44);
}
.footer-bottom .sep{margin:0 8px;color:rgba(247,244,238,.22)}

@media (max-width:1199px){
  .scene-layout{grid-template-columns:minmax(0,1fr) 330px;gap:40px}
  .nav-menu{gap:22px}
  .nav-link{font-size:14px}
}

@media (max-width:991px){
  .nav-menu{display:none}
  .menu-toggle{display:flex}
  .header-actions .btn{display:none}
  .section{padding:72px 0}
  .page-hero{padding:120px 0 64px}
  .page-hero h1{font-size:40px}
  .scene-layout{grid-template-columns:1fr;gap:32px}
  .timeline-visual{position:static;max-width:560px}
  .split{grid-template-columns:1fr;gap:32px}
  .split-media{order:-1}
  .metrics-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:28px 24px}
  .metric:nth-child(odd){padding-left:0;border-left:0}
  .steps-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:26px}
  .cta-card{padding:40px}
  .footer-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:32px}
}

@media (max-width:767px){
  .container{padding:0 18px}
  .header-inner{height:64px}
  .brand-name{font-size:16px}
  .brand-sub{font-size:9px;letter-spacing:.2em}
  .page-hero{padding:108px 0 56px}
  .page-hero h1{font-size:32px;line-height:1.32}
  .hero-lead{font-size:16px;line-height:1.85}
  .hero-actions{flex-direction:column;align-items:stretch}
  .hero-actions .btn{width:100%}
  .hero-points{gap:12px 18px;font-size:12px}
  .section{padding:56px 0}
  .section-head{flex-direction:column;align-items:flex-start;gap:8px;margin-bottom:30px}
  .section-head h2{font-size:24px}
  .section-note{max-width:100%}
  .scene-tabs{flex-wrap:nowrap;overflow-x:auto;padding-bottom:6px;margin-bottom:32px;-webkit-overflow-scrolling:touch}
  .scene-tab{flex:0 0 auto}
  .timeline-list{padding-left:28px}
  .timeline-item::before{left:-28px;width:13px;height:13px}
  .timeline-item h3{font-size:18px}
  .psr-row{gap:10px}
  .psr-label{min-width:40px;font-size:11px}
  .psr-row p{font-size:14px}
  .metrics-intro{flex-direction:column;align-items:flex-start;gap:10px}
  .metrics-intro h2{font-size:24px}
  .metric-num{font-size:32px}
  .split-text h2{font-size:25px}
  .cta-wrap{padding-bottom:64px}
  .cta-card{flex-direction:column;align-items:flex-start;gap:24px;padding:32px 24px}
  .cta-actions{width:100%}
  .cta-actions .btn{width:100%}
  .cta-copy h2{font-size:24px}
  .footer-grid{grid-template-columns:1fr;gap:30px}
  .footer-bottom{flex-direction:column;align-items:flex-start;gap:8px;margin-top:36px}
  .faq-item summary{font-size:15px;padding:20px 0}
  .related-link{flex:1 1 auto;min-width:calc(50% - 6px)}
}

@media (max-width:520px){
  .page-hero h1{font-size:29px}
  .eyebrow{font-size:12px}
  .hero-lead{font-size:15px}
  .steps-grid{grid-template-columns:1fr}
  .metrics-grid{grid-template-columns:1fr}
  .metric{padding-left:0;border-left:0;border-top:1px solid rgba(247,244,238,.14);padding-top:18px}
  .metric:first-child{border-top:0;padding-top:0}
  .related-link{min-width:100%}
  .footer-words{gap:6px}
}

/* roulang page: category4 */
/* ===================== 设计变量 ===================== */
:root{
  --ink:#2A2344;
  --ink-deep:#1C1730;
  --mist:#7FA8B8;
  --amber:#E0A03C;
  --bg:#F7F4EE;
  --bg-alt:#EFEAE1;
  --card:#FFFFFF;
  --text:#23202B;
  --text-2:#5A5566;
  --text-3:#8B8598;
  --line:rgba(42,35,68,.12);
  --line-soft:rgba(42,35,68,.08);
  --r-card:14px;
  --r-btn:10px;
  --r-input:10px;
  --r-img:16px;
  --shadow-1:0 1px 2px rgba(28,23,48,.05),0 6px 18px rgba(28,23,48,.06);
  --shadow-2:0 12px 28px rgba(28,23,48,.12);
  --s-1:8px; --s-2:12px; --s-3:16px; --s-4:24px; --s-5:32px; --s-6:48px; --s-7:64px; --s-8:96px;
  --header-h:72px;
}

/* ===================== 基础重置 ===================== */
*,*::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","Microsoft YaHei",system-ui,-apple-system,sans-serif;
  font-size:16px;
  line-height:1.85;
  color:var(--text);
  background:var(--bg);
  letter-spacing:.01em;
  -webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4,p,ul,ol,figure,blockquote{margin:0}
ul,ol{padding:0;list-style:none}
img{max-width:100%;display:block;border:0}
a{color:var(--ink);text-decoration:none;transition:color .2s ease}
a:hover{color:var(--amber)}
button{font-family:inherit;font-size:inherit;line-height:inherit;color:inherit;background:none;border:0;cursor:pointer}
input,textarea,select{font-family:inherit;font-size:inherit}
:focus-visible{outline:2px solid var(--amber);outline-offset:2px;border-radius:4px}
::selection{background:rgba(224,160,60,.28);color:var(--ink-deep)}

/* ===================== 容器与通用 ===================== */
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px}
.section{padding:96px 0}
.section--tight{padding:72px 0}
.section--alt{background:var(--bg-alt)}
.section--paper{background:var(--card)}
.num{font-variant-numeric:tabular-nums}
.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}

/* ===================== 按钮 ===================== */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:46px;padding:0 22px;border-radius:var(--r-btn);
  font-size:15px;font-weight:600;letter-spacing:.02em;
  border:1px solid transparent;text-decoration:none;
  transition:background .2s ease,color .2s ease,border-color .2s ease,box-shadow .2s ease,transform .2s ease;
  white-space:nowrap;
}
.btn:focus-visible{outline:2px solid var(--amber);outline-offset:2px}
.btn-primary{background:var(--ink);color:#F7F4EE}
.btn-primary:hover{background:var(--ink-deep);color:#F7F4EE;transform:translateY(-1px);box-shadow:var(--shadow-2)}
.btn-primary:active{transform:translateY(0);box-shadow:var(--shadow-1)}
.btn-light{background:#F7F4EE;color:var(--ink)}
.btn-light:hover{background:#fff;color:var(--ink-deep);transform:translateY(-1px);box-shadow:var(--shadow-2)}
.btn-outline{background:transparent;color:var(--ink);border-color:var(--line)}
.btn-outline:hover{border-color:var(--ink);color:var(--ink);box-shadow:var(--shadow-1);transform:translateY(-1px)}
.btn-ghost{background:transparent;color:#F7F4EE;border-color:rgba(247,244,238,.34)}
.btn-ghost:hover{border-color:var(--amber);color:var(--amber);transform:translateY(-1px)}
.btn-sm{height:40px;padding:0 18px;font-size:14px}

/* ===================== 徽章 / 标签 ===================== */
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:14px;font-weight:500;letter-spacing:.06em;
  color:var(--amber);
}
.eyebrow i{width:6px;height:6px;border-radius:50%;background:var(--amber);display:block}
.badge{
  display:inline-flex;align-items:center;height:26px;padding:0 12px;
  border-radius:999px;background:rgba(127,168,184,.16);
  color:#3C5A66;font-size:12px;font-weight:600;letter-spacing:.04em;
  border:1px solid rgba(127,168,184,.3);
}
.badge--amber{background:rgba(224,160,60,.14);color:#8A5F14;border-color:rgba(224,160,60,.36)}
.badge--ink{background:rgba(42,35,68,.08);color:var(--ink);border-color:rgba(42,35,68,.16)}
.tag{
  display:inline-flex;align-items:center;height:32px;padding:0 14px;
  border-radius:999px;background:rgba(255,255,255,.6);
  border:1px solid var(--line);color:var(--text-2);
  font-size:13px;font-weight:500;transition:all .2s ease;
}
.tag:hover{border-color:var(--ink);color:var(--ink);background:#fff}

/* ===================== 页头导航 ===================== */
.site-header{
  position:fixed;top:0;left:0;right:0;z-index:80;
  background:rgba(247,244,238,.94);
  border-bottom:1px solid var(--line-soft);
  transition:box-shadow .25s ease,background .25s ease;
}
.site-header.is-scrolled{background:rgba(247,244,238,.99);box-shadow:0 8px 24px rgba(28,23,48,.08)}
.header-inner{display:flex;align-items:center;justify-content:space-between;gap:24px;height:var(--header-h)}
.brand{display:inline-flex;align-items:center;gap:10px;color:var(--ink);flex-shrink:0}
.brand:hover{color:var(--ink)}
.brand-mark{width:32px;height:32px;color:var(--ink);flex-shrink:0}
.brand-text{display:flex;flex-direction:column;line-height:1.1}
.brand-name{font-size:17px;font-weight:700;letter-spacing:.03em}
.brand-sub{font-size:10px;letter-spacing:.32em;color:var(--text-3);margin-top:3px}
.nav-menu{display:flex;align-items:center;gap:28px}
.nav-link{
  position:relative;padding:6px 0;font-size:15px;font-weight:500;
  color:var(--text-2);transition:color .2s ease;
}
.nav-link::after{
  content:"";position:absolute;left:0;right:0;bottom:-2px;height:2px;
  background:var(--amber);transform:scaleX(0);transform-origin:left;
  transition:transform .22s ease;
}
.nav-link:hover{color:var(--ink)}
.nav-link:hover::after,.nav-link.is-active::after{transform:scaleX(1)}
.nav-link.is-active{color:var(--ink);font-weight:600}
.header-actions{display:flex;align-items:center;gap:14px;flex-shrink:0}
.header-link{font-size:14px;font-weight:500;color:var(--text-2)}
.header-link:hover{color:var(--ink)}

/* 汉堡按钮 */
.nav-toggle{
  display:none;width:44px;height:44px;border-radius:var(--r-btn);
  align-items:center;justify-content:center;
  border:1px solid var(--line);background:#fff;
  transition:border-color .2s ease,box-shadow .2s ease;
}
.nav-toggle:hover{border-color:var(--ink);box-shadow:var(--shadow-1)}
.nav-toggle span{display:block;width:18px;height:1.6px;background:var(--ink);position:relative}
.nav-toggle span::before,.nav-toggle span::after{
  content:"";position:absolute;left:0;width:18px;height:1.6px;background:var(--ink);
  transition:transform .2s ease;
}
.nav-toggle span::before{top:-6px}
.nav-toggle span::after{top:6px}

/* 移动抽屉 */
.drawer-mask{
  position:fixed;inset:0;background:rgba(28,23,48,.48);
  opacity:0;visibility:hidden;transition:opacity .25s ease,visibility .25s ease;
  z-index:90;
}
.drawer-mask.is-open{opacity:1;visibility:visible}
.mobile-drawer{
  position:fixed;top:0;right:0;bottom:0;width:82%;max-width:340px;
  background:var(--bg);z-index:91;display:flex;flex-direction:column;
  transform:translateX(102%);transition:transform .28s cubic-bezier(.4,0,.2,1);
  box-shadow:-12px 0 40px rgba(28,23,48,.2);
}
.mobile-drawer.is-open{transform:translateX(0)}
.drawer-head{
  display:flex;align-items:center;justify-content:space-between;
  padding:18px 20px;border-bottom:1px solid var(--line-soft);
}
.drawer-title{font-size:15px;font-weight:700;color:var(--ink)}
.drawer-close{
  width:36px;height:36px;border-radius:8px;border:1px solid var(--line);
  display:flex;align-items:center;justify-content:center;
  font-size:20px;line-height:1;color:var(--ink);transition:all .2s ease;
}
.drawer-close:hover{border-color:var(--ink);background:#fff}
.drawer-nav{display:flex;flex-direction:column;padding:12px 12px 0;overflow-y:auto;flex:1}
.drawer-nav a{
  display:flex;align-items:center;height:48px;padding:0 12px;border-radius:8px;
  font-size:15px;font-weight:500;color:var(--text-2);transition:all .18s ease;
}
.drawer-nav a:hover{background:#fff;color:var(--ink)}
.drawer-nav a.is-active{background:#fff;color:var(--ink);font-weight:600;box-shadow:inset 3px 0 0 var(--amber)}
.drawer-cta{margin:16px 20px 24px}

/* ===================== 分类页首屏 ===================== */
.page-hero{
  position:relative;overflow:hidden;
  padding:calc(var(--header-h) + 52px) 0 64px;
  background:var(--ink);color:#F7F4EE;
}
.page-hero::before{
  content:"";position:absolute;inset:0;pointer-events:none;opacity:.6;
  background-image:
    radial-gradient(circle at 18% 32%,rgba(247,244,238,.55) 1px,transparent 1.8px),
    radial-gradient(circle at 62% 16%,rgba(247,244,238,.4) 1px,transparent 1.8px),
    radial-gradient(circle at 86% 60%,rgba(224,160,60,.65) 1px,transparent 1.8px),
    radial-gradient(circle at 36% 80%,rgba(247,244,238,.35) 1px,transparent 1.8px),
    radial-gradient(circle at 74% 90%,rgba(127,168,184,.55) 1px,transparent 1.8px),
    radial-gradient(circle at 48% 48%,rgba(247,244,238,.28) 1px,transparent 1.8px);
  background-size:320px 280px,260px 240px,380px 320px,300px 260px,340px 300px,420px 360px;
}
.page-hero::after{
  content:"";position:absolute;right:-120px;top:-120px;width:520px;height:520px;
  border-radius:50%;
  background:radial-gradient(circle,rgba(127,168,184,.22),transparent 62%);
  pointer-events:none;
}
.page-hero .container{position:relative;z-index:2}
.crumbs{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:rgba(247,244,238,.58);margin-bottom:28px}
.crumbs a{color:rgba(247,244,238,.78)}
.crumbs a:hover{color:var(--amber)}
.crumbs .sep{color:rgba(247,244,238,.32)}
.crumbs .current{color:rgba(247,244,238,.9)}
.page-hero h1{
  font-size:46px;line-height:1.24;font-weight:700;letter-spacing:.02em;
  margin:18px 0 0;color:#F7F4EE;max-width:760px;
}
.page-lead{
  margin-top:18px;max-width:720px;font-size:16px;line-height:1.9;
  color:rgba(247,244,238,.76);
}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:32px}
.hero-stats{
  display:grid;grid-template-columns:repeat(4,minmax(0,1fr));
  gap:0;margin-top:48px;padding-top:28px;
  border-top:1px solid rgba(247,244,238,.16);
}
.hero-stat{padding-right:24px}
.hero-stat + .hero-stat{padding-left:24px;border-left:1px solid rgba(247,244,238,.14)}
.hero-stat b{
  display:block;font-size:26px;font-weight:700;color:var(--amber);
  font-variant-numeric:tabular-nums;letter-spacing:.01em;line-height:1.3;
}
.hero-stat span{display:block;font-size:13px;color:rgba(247,244,238,.66);margin-top:4px}

/* ===================== 通用板块标题 ===================== */
.section-head{
  display:flex;align-items:flex-end;justify-content:space-between;
  gap:32px;margin-bottom:40px;
}
.section-head h2{
  font-size:28px;line-height:1.35;font-weight:700;color:var(--ink);
  letter-spacing:.02em;
}
.section-head .head-note{
  font-size:14px;color:var(--text-3);max-width:420px;text-align:right;line-height:1.7;
}
.section-head .head-link{font-size:14px;font-weight:600;color:var(--ink);white-space:nowrap}
.section-head .head-link:hover{color:var(--amber)}
.section-intro{max-width:720px;font-size:16px;color:var(--text-2);margin-bottom:40px}

/* ===================== 交付形态卡 ===================== */
.form-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px}
.form-card{
  position:relative;background:var(--card);border:1px solid var(--line);
  border-radius:var(--r-card);padding:28px 24px;box-shadow:var(--shadow-1);
  transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease;
  display:flex;flex-direction:column;
}
.form-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-2);border-color:rgba(42,35,68,.22)}
.form-icon{
  width:40px;height:40px;border-radius:10px;display:flex;align-items:center;justify-content:center;
  border:1px solid rgba(127,168,184,.4);background:rgba(127,168,184,.1);
  color:#3C5A66;margin-bottom:18px;
}
.form-icon svg{width:20px;height:20px}
.form-card h3{font-size:19px;font-weight:700;color:var(--ink);line-height:1.5}
.form-card p{margin-top:10px;font-size:14.5px;line-height:1.85;color:var(--text-2)}
.form-card .form-fit{
  margin-top:auto;padding-top:18px;border-top:1px solid var(--line-soft);
  font-size:13px;color:var(--text-3);display:flex;align-items:center;gap:8px;
}
.form-card .form-fit::before{
  content:"";width:5px;height:5px;border-radius:50%;background:var(--amber);flex-shrink:0;
}

/* ===================== 客户案例大卡 ===================== */
.case-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:24px}
.case-card{
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);
  overflow:hidden;box-shadow:var(--shadow-1);display:flex;flex-direction:column;
  transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease;
}
.case-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-2);border-color:rgba(42,35,68,.22)}
.case-media{aspect-ratio:16/10;overflow:hidden;background:var(--bg-alt)}
.case-media img{width:100%;height:100%;object-fit:cover;transition:transform .45s ease}
.case-card:hover .case-media img{transform:scale(1.04)}
.case-body{padding:26px 24px 24px;display:flex;flex-direction:column;gap:14px;flex:1}
.case-client{
  display:flex;align-items:center;justify-content:space-between;gap:12px;
  font-size:13px;color:var(--text-3);
}
.case-body h3{font-size:20px;line-height:1.5;font-weight:700;color:var(--ink)}
.case-body p{font-size:14.5px;line-height:1.9;color:var(--text-2)}
.metrics{
  display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:10px;
  margin-top:auto;padding-top:18px;border-top:1px solid var(--line-soft);
}
.metric b{
  display:block;font-size:24px;font-weight:700;color:var(--ink);
  font-variant-numeric:tabular-nums;line-height:1.25;letter-spacing:.01em;
}
.metric span{display:block;font-size:12px;color:var(--text-3);margin-top:4px;line-height:1.6}

/* ===================== 三栏引用式评价 ===================== */
.quote-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px}
.quote{
  position:relative;background:var(--card);border:1px solid var(--line);
  border-radius:var(--r-card);padding:30px 24px 24px;
  box-shadow:var(--shadow-1);
  transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease;
}
.quote:hover{transform:translateY(-2px);box-shadow:var(--shadow-2);border-color:rgba(42,35,68,.2)}
.qmark{width:22px;height:18px;color:var(--amber);opacity:.9;margin-bottom:16px}
.quote p{font-size:15px;line-height:1.95;color:var(--text-2)}
.quote-foot{
  margin-top:22px;padding-top:16px;border-top:1px solid var(--line-soft);
  display:flex;align-items:center;gap:10px;
}
.quote-avatar{
  width:34px;height:34px;border-radius:50%;flex-shrink:0;
  display:flex;align-items:center;justify-content:center;
  background:rgba(42,35,68,.07);color:var(--ink);
  font-size:13px;font-weight:700;letter-spacing:.02em;
}
.quote-name{display:block;font-size:14px;font-weight:600;color:var(--ink);line-height:1.4}
.quote-role{display:block;font-size:12.5px;color:var(--text-3);line-height:1.5}

/* ===================== 部署流程 ===================== */
.flow{position:relative;display:grid;grid-template-columns:repeat(5,minmax(0,1fr));gap:20px}
.flow::before{
  content:"";position:absolute;left:0;right:0;top:15px;height:1px;
  background:var(--line);
}
.flow-step{position:relative;padding-top:44px}
.flow-step::before{
  content:"";position:absolute;left:0;top:9px;width:13px;height:13px;border-radius:50%;
  background:var(--bg);border:2px solid var(--amber);
  box-shadow:0 0 0 4px var(--bg);
}
.flow-step .step-no{
  display:block;font-size:12px;font-weight:600;letter-spacing:.14em;
  color:var(--text-3);margin-bottom:6px;
}
.flow-step h3{font-size:17px;font-weight:700;color:var(--ink);line-height:1.5}
.flow-step p{font-size:13.5px;line-height:1.8;color:var(--text-2);margin-top:8px}

/* ===================== 适配环境条 ===================== */
.env-bar{
  display:flex;flex-wrap:wrap;gap:12px;align-items:center;
  padding:22px 24px;background:var(--card);border:1px solid var(--line);
  border-radius:var(--r-card);box-shadow:var(--shadow-1);
}
.env-bar .env-label{
  font-size:13px;font-weight:600;color:var(--ink);letter-spacing:.04em;
  padding-right:16px;margin-right:4px;border-right:1px solid var(--line-soft);
}

/* ===================== FAQ ===================== */
.faq{max-width:820px}
.faq-item{border-top:1px solid var(--line-soft)}
.faq-item:last-child{border-bottom:1px solid var(--line-soft)}
.faq-item summary{
  display:flex;align-items:center;justify-content:space-between;gap:20px;
  padding:22px 0;font-size:16px;font-weight:600;color:var(--ink);
  cursor:pointer;list-style:none;transition:color .2s ease;
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary:hover{color:var(--ink-deep)}
.faq-item summary:focus-visible{outline:2px solid var(--amber);outline-offset:4px;border-radius:6px}
.faq-icon{
  position:relative;width:18px;height:18px;flex-shrink:0;
  transition:transform .25s ease;
}
.faq-icon::before,.faq-icon::after{
  content:"";position:absolute;background:var(--text-3);border-radius:2px;
}
.faq-icon::before{left:0;top:8px;width:18px;height:1.6px}
.faq-icon::after{left:8px;top:0;width:1.6px;height:18px}
.faq-item[open] .faq-icon{transform:rotate(45deg)}
.faq-item[open] .faq-icon::before,.faq-item[open] .faq-icon::after{background:var(--amber)}
.faq-answer{
  padding:0 0 24px;font-size:14.5px;line-height:1.9;color:var(--text-2);
  max-width:730px;
}
.faq-answer strong{color:var(--ink);font-weight:600}

/* ===================== 相关分类链接带 ===================== */
.rel-band{
  display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:16px;
}
.rel-item{
  display:flex;align-items:center;justify-content:space-between;gap:12px;
  padding:18px 20px;background:var(--card);border:1px solid var(--line);
  border-radius:var(--r-card);font-size:14.5px;font-weight:600;color:var(--ink);
  box-shadow:var(--shadow-1);
  transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease,color .2s ease;
}
.rel-item:hover{
  transform:translateY(-2px);box-shadow:var(--shadow-2);
  border-color:rgba(42,35,68,.24);color:var(--ink-deep);
}
.rel-item .arrow{color:var(--amber);font-size:15px;transition:transform .2s ease}
.rel-item:hover .arrow{transform:translateX(3px)}

/* ===================== CTA 带 ===================== */
.cta-band{
  position:relative;overflow:hidden;
  background:var(--ink);color:#F7F4EE;border-radius:var(--r-img);
  padding:56px 48px;
}
.cta-band::before{
  content:"";position:absolute;inset:0;pointer-events:none;opacity:.5;
  background-image:
    radial-gradient(circle at 82% 22%,rgba(224,160,60,.6) 1px,transparent 1.8px),
    radial-gradient(circle at 92% 68%,rgba(247,244,238,.45) 1px,transparent 1.8px),
    radial-gradient(circle at 68% 84%,rgba(127,168,184,.55) 1px,transparent 1.8px),
    radial-gradient(circle at 12% 78%,rgba(247,244,238,.3) 1px,transparent 1.8px);
  background-size:300px 260px,260px 240px,340px 300px,380px 320px;
}
.cta-inner{
  position:relative;z-index:2;
  display:flex;align-items:center;justify-content:space-between;gap:40px;
}
.cta-band h2{
  font-size:28px;line-height:1.35;font-weight:700;color:#F7F4EE;letter-spacing:.02em;
}
.cta-band p{margin-top:10px;font-size:14.5px;color:rgba(247,244,238,.72);max-width:520px}
.cta-actions{display:flex;gap:14px;flex-wrap:wrap;flex-shrink:0}

/* ===================== 页脚 ===================== */
.site-footer{background:var(--ink-deep);color:rgba(247,244,238,.72);padding:72px 0 0;margin-top:0}
.footer-grid{
  display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:40px;
  padding-bottom:56px;
}
.footer-brand .brand{color:#F7F4EE;margin-bottom:20px}
.footer-brand .brand:hover{color:#F7F4EE}
.footer-brand .brand-mark{color:#F7F4EE}
.footer-brand .brand-sub{color:rgba(247,244,238,.42)}
.footer-about{font-size:14px;line-height:1.9;color:rgba(247,244,238,.62);max-width:330px}
.footer-words{display:flex;flex-wrap:wrap;gap:8px;margin-top:20px}
.footer-words span{
  font-size:12px;padding:5px 12px;border-radius:999px;
  border:1px solid rgba(247,244,238,.16);color:rgba(247,244,238,.62);
}
.footer-col h4{
  font-size:14px;font-weight:700;color:#F7F4EE;letter-spacing:.06em;margin-bottom:18px;
}
.footer-col ul{display:flex;flex-direction:column;gap:12px}
.footer-col a{font-size:14px;color:rgba(247,244,238,.64)}
.footer-col a:hover{color:var(--amber)}
.footer-contact li{
  font-size:14px;line-height:1.8;color:rgba(247,244,238,.64);
  display:flex;gap:8px;
}
.footer-contact strong{
  font-weight:500;color:rgba(247,244,238,.4);flex-shrink:0;font-size:13px;
}
.footer-bottom{
  display:flex;align-items:center;justify-content:space-between;gap:20px;
  padding:22px 0 26px;border-top:1px solid rgba(247,244,238,.1);
  font-size:13px;color:rgba(247,244,238,.44);
}
.footer-bottom .sep{margin:0 10px;color:rgba(247,244,238,.24)}

/* ===================== 响应式 ===================== */
@media (max-width:1199px){
  .container{padding:0 22px}
  .nav-menu{gap:22px}
  .page-hero h1{font-size:40px}
  .section{padding:80px 0}
  .flow{grid-template-columns:repeat(3,minmax(0,1fr));row-gap:36px}
  .flow::before{display:none}
  .footer-grid{grid-template-columns:1.4fr 1fr 1fr;gap:32px}
  .footer-col:last-child{grid-column:1 / -1}
  .footer-contact{flex-direction:row;flex-wrap:wrap;gap:10px 32px}
}

@media (max-width:991px){
  .nav-menu{display:none}
  .header-link{display:none}
  .nav-toggle{display:flex}
  .header-actions .btn{display:none}
  .page-hero{padding:calc(var(--header-h) + 40px) 0 52px}
  .page-hero h1{font-size:34px}
  .hero-stats{grid-template-columns:repeat(2,minmax(0,1fr));row-gap:22px}
  .hero-stat:nth-child(3){padding-left:0;border-left:0}
  .hero-stat:nth-child(4){padding-left:24px}
  .form-grid{grid-template-columns:1fr;gap:16px}
  .case-grid{grid-template-columns:1fr}
  .quote-grid{grid-template-columns:1fr}
  .rel-band{grid-template-columns:repeat(2,minmax(0,1fr))}
  .cta-inner{flex-direction:column;align-items:flex-start;gap:28px}
  .cta-band{padding:44px 28px}
  .section-head{flex-direction:column;align-items:flex-start;gap:12px}
  .section-head .head-note{text-align:left;max-width:100%}
  .flow{grid-template-columns:repeat(2,minmax(0,1fr))}
  .footer-grid{grid-template-columns:1fr 1fr}
  .footer-col:last-child{grid-column:auto}
  .footer-contact{flex-direction:column;gap:12px}
}

@media (max-width:767px){
  body{font-size:15.5px}
  .container{padding:0 18px}
  .section,.section--tight{padding:56px 0}
  .page-hero{padding:calc(var(--header-h) + 32px) 0 44px}
  .page-hero h1{font-size:28px;line-height:1.32}
  .page-lead{font-size:15px}
  .hero-actions{flex-direction:column;gap:10px}
  .hero-actions .btn{width:100%}
  .hero-stats{margin-top:36px;padding-top:22px}
  .hero-stat b{font-size:22px}
  .section-head h2{font-size:23px}
  .form-card{padding:22px 20px}
  .case-body{padding:22px 20px}
  .case-body h3{font-size:18px}
  .metrics{grid-template-columns:repeat(3,minmax(0,1fr));gap:8px}
  .metric b{font-size:20px}
  .flow{grid-template-columns:1fr;row-gap:28px}
  .flow-step{padding-top:36px}
  .rel-band{grid-template-columns:1fr}
  .cta-band{padding:36px 22px;border-radius:14px}
  .cta-band h2{font-size:22px}
  .cta-actions{width:100%;flex-direction:column}
  .cta-actions .btn{width:100%}
  .env-bar{padding:18px}
  .env-bar .env-label{width:100%;border-right:0;padding-right:0;margin-right:0;padding-bottom:8px;border-bottom:1px solid var(--line-soft)}
  .site-footer{padding-top:52px}
  .footer-grid{grid-template-columns:1fr;gap:32px;padding-bottom:40px}
  .footer-bottom{flex-direction:column;align-items:flex-start;gap:8px;font-size:12.5px}
  .quote{padding:24px 20px}
}

@media (max-width:479px){
  .page-hero h1{font-size:25px}
  .hero-stat{padding-right:0}
  .hero-stat + .hero-stat{padding-left:16px}
  .metric b{font-size:18px}
  .metrics{gap:6px}
}

/* roulang page: category5 */
:root{
  --ink:#2A2344;
  --ink-deep:#1C1730;
  --cyan:#7FA8B8;
  --amber:#E0A03C;
  --bg:#F7F4EE;
  --card:#FFFFFF;
  --bg-alt:#EFEAE1;
  --t1:#23202B;
  --t2:#5A5566;
  --t3:#8B8598;
  --inv:#F7F4EE;
  --line:rgba(42,35,68,.12);
  --line-soft:rgba(42,35,68,.08);
  --radius:14px;
  --radius-btn:10px;
  --radius-img:16px;
  --shadow:0 1px 2px rgba(28,23,48,.05),0 6px 18px rgba(28,23,48,.06);
  --shadow-hover:0 12px 28px rgba(28,23,48,.12);
  --font:"Noto Sans SC","PingFang SC","Microsoft YaHei",system-ui,-apple-system,sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:var(--font);
  font-size:16px;
  line-height:1.85;
  color:var(--t1);
  background:var(--bg);
  letter-spacing:.01em;
  -webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4,p{margin:0}
ul,ol{margin:0;padding:0;list-style:none}
img{display:block;max-width:100%;height:auto}
a{color:inherit;text-decoration:none}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer}
table{border-collapse:collapse;width:100%}
a:focus-visible,button:focus-visible,input:focus-visible,summary:focus-visible{
  outline:2px solid var(--amber);
  outline-offset:2px;
  border-radius:6px;
}
.container{
  width:100%;
  max-width:1200px;
  margin:0 auto;
  padding:0 24px;
}
.section{padding:96px 0}
.section-alt{background:var(--bg-alt)}
.section-head{
  display:flex;
  align-items:flex-end;
  justify-content:space-between;
  gap:24px;
  padding-bottom:8px;
}
.section-head h2{
  font-size:28px;
  line-height:1.35;
  font-weight:700;
  color:var(--ink);
  letter-spacing:.01em;
}
.section-head p{
  margin-top:8px;
  font-size:15px;
  line-height:1.8;
  color:var(--t2);
  max-width:640px;
}
.section-head .rule{
  width:3px;height:22px;background:var(--amber);border-radius:2px;
  display:inline-block;vertical-align:-3px;margin-right:12px;
}
.text-link{
  font-size:14px;
  font-weight:600;
  color:var(--ink);
  border-bottom:1px solid rgba(42,35,68,.28);
  padding-bottom:2px;
  transition:color .2s,border-color .2s;
  white-space:nowrap;
}
.text-link:hover{color:var(--amber);border-color:var(--amber)}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  height:48px;
  padding:0 24px;
  border-radius:var(--radius-btn);
  font-size:15px;
  font-weight:600;
  letter-spacing:.02em;
  border:1px solid transparent;
  transition:background .2s,color .2s,border-color .2s,box-shadow .2s,transform .15s;
}
.btn:active{transform:translateY(1px)}
.btn-primary{background:var(--ink);color:var(--inv)}
.btn-primary:hover{background:var(--ink-deep);box-shadow:var(--shadow-hover)}
.btn-outline{background:transparent;border-color:var(--line);color:var(--ink)}
.btn-outline:hover{border-color:var(--ink);background:rgba(42,35,68,.05)}
.btn-ghost{background:transparent;border-color:rgba(247,244,238,.34);color:var(--inv)}
.btn-ghost:hover{border-color:var(--amber);color:var(--amber)}
.btn-light{background:var(--inv);color:var(--ink)}
.btn-light:hover{background:#fff;box-shadow:0 12px 28px rgba(0,0,0,.22)}
.btn-block{width:100%}

/* ---------- 导航 ---------- */
.site-header{
  position:sticky;
  top:0;
  z-index:80;
  background:rgba(28,23,48,.94);
  border-bottom:1px solid rgba(247,244,238,.10);
  transition:background .25s,box-shadow .25s;
}
.site-header.is-scrolled{
  background:rgba(20,16,36,.98);
  box-shadow:0 8px 24px rgba(15,12,28,.28);
}
.nav-row{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:24px;
  height:72px;
}
.brand{display:flex;align-items:center;gap:10px;color:var(--inv);flex-shrink:0}
.brand-mark{width:34px;height:34px;color:var(--amber);flex-shrink:0}
.brand-name{display:block;font-size:17px;font-weight:700;line-height:1.2;letter-spacing:.02em}
.brand-sub{display:block;font-size:11px;line-height:1.4;letter-spacing:.26em;color:rgba(247,244,238,.55)}
.nav-menu{display:flex;align-items:center;gap:28px}
.nav-link{
  position:relative;
  display:inline-block;
  padding:6px 0;
  font-size:15px;
  font-weight:500;
  color:rgba(247,244,238,.78);
  transition:color .2s;
}
.nav-link::after{
  content:"";
  position:absolute;
  left:0;right:0;bottom:-2px;
  height:2px;
  background:var(--amber);
  transform:scaleX(0);
  transform-origin:left;
  transition:transform .2s;
}
.nav-link:hover{color:#fff}
.nav-link:hover::after{transform:scaleX(1)}
.nav-link.is-active{color:#fff}
.nav-link.is-active::after{transform:scaleX(1)}
.nav-actions{display:flex;align-items:center;gap:18px;flex-shrink:0}
.nav-phone{
  font-size:14px;
  font-weight:600;
  color:rgba(247,244,238,.72);
  font-variant-numeric:tabular-nums;
  transition:color .2s;
}
.nav-phone:hover{color:var(--amber)}
.nav-cta{
  display:inline-flex;align-items:center;justify-content:center;
  height:40px;padding:0 20px;
  border-radius:var(--radius-btn);
  background:var(--amber);
  color:#241d0c;
  font-size:14px;font-weight:700;
  transition:background .2s,transform .15s,box-shadow .2s;
}
.nav-cta:hover{background:#eeb457;box-shadow:0 8px 20px rgba(224,160,60,.32)}
.nav-cta:active{transform:translateY(1px)}
.nav-toggle{
  display:none;
  align-items:center;justify-content:center;
  width:44px;height:44px;
  border:1px solid rgba(247,244,238,.24);
  border-radius:10px;
  color:var(--inv);
  transition:border-color .2s,background .2s;
}
.nav-toggle:hover{border-color:var(--amber);background:rgba(247,244,238,.08)}
.nav-toggle span{display:block;width:18px;height:2px;background:currentColor;position:relative}
.nav-toggle span::before,.nav-toggle span::after{
  content:"";position:absolute;left:0;width:18px;height:2px;background:currentColor;transition:transform .2s;
}
.nav-toggle span::before{top:-6px}
.nav-toggle span::after{top:6px}

/* ---------- 抽屉 ---------- */
.drawer-mask{
  position:fixed;inset:0;z-index:90;
  background:rgba(15,12,28,.55);
  opacity:0;visibility:hidden;
  transition:opacity .25s,visibility .25s;
}
.drawer-mask.is-open{opacity:1;visibility:visible}
.nav-drawer{
  position:fixed;top:0;right:0;bottom:0;z-index:95;
  width:82%;max-width:340px;
  background:var(--ink-deep);
  color:var(--inv);
  display:flex;flex-direction:column;
  transform:translateX(102%);
  transition:transform .28s ease;
  padding:20px 20px 24px;
  overflow-y:auto;
}
.nav-drawer.is-open{transform:translateX(0)}
.drawer-top{display:flex;align-items:center;justify-content:space-between;margin-bottom:20px}
.drawer-close{
  width:40px;height:40px;border-radius:10px;
  border:1px solid rgba(247,244,238,.24);
  display:flex;align-items:center;justify-content:center;
  font-size:20px;line-height:1;color:var(--inv);
}
.drawer-close:hover{border-color:var(--amber);color:var(--amber)}
.drawer-nav{display:flex;flex-direction:column;gap:4px}
.drawer-nav a{
  display:flex;align-items:center;
  height:48px;padding:0 12px;
  border-radius:10px;
  font-size:15px;font-weight:500;
  color:rgba(247,244,238,.82);
  transition:background .2s,color .2s;
}
.drawer-nav a:hover,.drawer-nav a.is-active{background:rgba(247,244,238,.09);color:#fff}
.drawer-foot{margin-top:auto;padding-top:24px;border-top:1px solid rgba(247,244,238,.12)}
.drawer-foot .btn{margin-bottom:12px}
.drawer-foot p{font-size:13px;color:rgba(247,244,238,.6);font-variant-numeric:tabular-nums}

/* ---------- 页头 ---------- */
.page-head{
  position:relative;
  background:var(--ink-deep);
  color:var(--inv);
  padding:76px 0 80px;
  overflow:hidden;
}
.page-head::before{
  content:"";
  position:absolute;inset:0;
  background-image:
    radial-gradient(circle at 12% 22%, rgba(247,244,238,.10) 0 1.5px, transparent 1.6px),
    radial-gradient(circle at 76% 16%, rgba(247,244,238,.08) 0 1.5px, transparent 1.6px),
    radial-gradient(circle at 34% 78%, rgba(247,244,238,.08) 0 1.5px, transparent 1.6px),
    radial-gradient(circle at 88% 64%, rgba(247,244,238,.10) 0 1.5px, transparent 1.6px),
    radial-gradient(circle at 56% 44%, rgba(247,244,238,.06) 0 1.5px, transparent 1.6px);
  pointer-events:none;
}
.page-head::after{
  content:"";
  position:absolute;inset:0;
  background:linear-gradient(115deg,rgba(28,23,48,.94) 30%,rgba(28,23,48,.55) 100%);
  pointer-events:none;
}
.page-head-grid{
  position:relative;
  z-index:2;
  display:grid;
  grid-template-columns:1.15fr .85fr;
  gap:56px;
  align-items:center;
}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;font-weight:600;letter-spacing:.08em;
  color:var(--amber);
  margin-bottom:18px;
}
.eyebrow i{
  width:6px;height:6px;border-radius:999px;background:var(--amber);display:inline-block;
}
.page-head h1{
  font-size:46px;
  line-height:1.25;
  font-weight:700;
  letter-spacing:.01em;
  color:#fff;
}
.page-head .lede{
  margin-top:20px;
  max-width:600px;
  font-size:16px;
  line-height:1.85;
  color:rgba(247,244,238,.78);
}
.page-head-actions{
  display:flex;
  flex-wrap:wrap;
  gap:14px;
  margin-top:32px;
}
.head-facts{
  display:flex;
  flex-wrap:wrap;
  gap:12px 28px;
  margin-top:34px;
  padding-top:24px;
  border-top:1px solid rgba(247,244,238,.14);
}
.head-facts li{
  position:relative;
  padding-left:16px;
  font-size:14px;
  color:rgba(247,244,238,.72);
}
.head-facts li::before{
  content:"";
  position:absolute;left:0;top:11px;
  width:5px;height:5px;border-radius:999px;background:var(--cyan);
}
.page-head-media{
  margin:0;
  border-radius:var(--radius-img);
  overflow:hidden;
  border:1px solid rgba(247,244,238,.16);
  box-shadow:0 24px 48px rgba(10,8,20,.42);
  aspect-ratio:4/3;
  background:#241d38;
}
.page-head-media img{width:100%;height:100%;object-fit:cover;opacity:.92}

/* ---------- 价格 ---------- */
.price-grid{
  display:grid;
  grid-template-columns:repeat(3,1fr);
  gap:24px;
  align-items:start;
  margin-top:44px;
}
.price-card{
  position:relative;
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--radius);
  padding:30px 24px 26px;
  box-shadow:var(--shadow);
  transition:transform .2s,box-shadow .2s,border-color .2s;
  display:flex;
  flex-direction:column;
  height:100%;
}
.price-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-hover);border-color:rgba(42,35,68,.24)}
.price-card h3{font-size:20px;font-weight:700;color:var(--ink);line-height:1.5}
.price-card .tier-desc{margin-top:6px;font-size:14px;line-height:1.7;color:var(--t3);min-height:48px}
.price-num{
  margin-top:16px;
  display:flex;
  align-items:baseline;
  gap:6px;
  color:var(--ink);
  font-variant-numeric:tabular-nums;
}
.price-num .cur{font-size:20px;font-weight:700}
.price-num .num{font-size:40px;font-weight:700;line-height:1.1;letter-spacing:.01em}
.price-num .unit{font-size:13px;color:var(--t3);font-weight:500}
.price-note{margin-top:8px;font-size:12.5px;color:var(--t3);line-height:1.7}
.price-list{margin-top:20px;padding-top:20px;border-top:1px solid var(--line-soft);display:flex;flex-direction:column;gap:12px}
.price-list li{
  position:relative;
  padding-left:24px;
  font-size:14px;
  line-height:1.7;
  color:var(--t2);
}
.price-list li::before{
  content:"";
  position:absolute;left:0;top:7px;
  width:14px;height:8px;
  border-left:1.6px solid var(--amber);
  border-bottom:1.6px solid var(--amber);
  transform:rotate(-45deg);
  border-radius:1px;
}
.price-card .btn{margin-top:26px}
.price-card.is-rec{
  border:2px solid var(--ink);
  transform:translateY(-8px);
  box-shadow:var(--shadow-hover);
  padding-top:34px;
}
.price-card.is-rec:hover{transform:translateY(-10px)}
.badge-rec{
  position:absolute;
  top:-13px;left:24px;
  background:var(--amber);
  color:#241d0c;
  font-size:12px;
  font-weight:700;
  letter-spacing:.08em;
  padding:3px 12px;
  border-radius:999px;
}
.price-footnote{
  margin-top:28px;
  font-size:12.5px;
  line-height:1.8;
  color:var(--t3);
  max-width:820px;
}

/* ---------- 报价包含 ---------- */
.delivery-grid{
  display:grid;
  grid-template-columns:1.05fr .95fr;
  gap:56px;
  align-items:center;
}
.delivery-grid h2{font-size:28px;line-height:1.35;color:var(--ink);font-weight:700}
.delivery-grid .sub{margin-top:12px;font-size:15px;color:var(--t2);line-height:1.85;max-width:520px}
.row-list{margin-top:28px;display:flex;flex-direction:column;gap:14px}
.row-item{
  display:flex;
  gap:16px;
  padding:18px 20px;
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--radius);
  box-shadow:var(--shadow);
  transition:border-color .2s,box-shadow .2s;
}
.row-item:hover{border-color:rgba(42,35,68,.24);box-shadow:var(--shadow-hover)}
.row-icon{
  flex-shrink:0;
  width:38px;height:38px;
  border-radius:10px;
  display:flex;align-items:center;justify-content:center;
  color:var(--ink);
  background:rgba(127,168,184,.16);
  border:1px solid rgba(127,168,184,.4);
}
.row-icon svg{width:20px;height:20px}
.row-item h3{font-size:16px;font-weight:700;color:var(--ink);line-height:1.6}
.row-item p{margin-top:4px;font-size:14px;line-height:1.75;color:var(--t2)}
.delivery-media{
  margin:0;
  border-radius:var(--radius-img);
  overflow:hidden;
  border:1px solid var(--line);
  box-shadow:var(--shadow);
  aspect-ratio:4/3;
}
.delivery-media img{width:100%;height:100%;object-fit:cover}

/* ---------- 流程 ---------- */
.flow{
  display:grid;
  grid-template-columns:repeat(4,1fr);
  gap:24px;
  margin-top:44px;
}
.flow-step{
  position:relative;
  padding-top:26px;
  border-top:1px solid var(--line);
}
.flow-step::before{
  content:"";
  position:absolute;top:-5px;left:0;
  width:9px;height:9px;border-radius:999px;
  background:var(--amber);
  box-shadow:0 0 0 4px rgba(224,160,60,.16);
}
.flow-step .idx{
  font-size:12px;
  font-weight:700;
  letter-spacing:.16em;
  color:var(--cyan);
  font-variant-numeric:tabular-nums;
}
.flow-step h3{margin-top:8px;font-size:17px;font-weight:700;color:var(--ink)}
.flow-step p{margin-top:6px;font-size:14px;line-height:1.75;color:var(--t2)}

/* ---------- 对比表 ---------- */
.table-wrap{
  margin-top:36px;
  overflow-x:auto;
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--radius);
  box-shadow:var(--shadow);
  -webkit-overflow-scrolling:touch;
}
.compare-table{min-width:800px;font-size:14px}
.compare-table th,.compare-table td{
  padding:14px 18px;
  text-align:left;
  border-bottom:1px solid var(--line-soft);
  vertical-align:top;
  line-height:1.7;
}
.compare-table thead th{
  background:rgba(42,35,68,.045);
  color:var(--ink);
  font-size:14px;
  font-weight:700;
  white-space:nowrap;
  border-bottom:1px solid var(--line);
}
.compare-table tbody th{
  font-weight:600;
  color:var(--t2);
  white-space:nowrap;
  background:rgba(42,35,68,.02);
}
.compare-table td{color:var(--t1)}
.compare-table .col-rec{background:rgba(224,160,60,.10)}
.compare-table thead .col-rec{background:rgba(224,160,60,.18)}
.compare-table tbody tr:hover td:not(.col-rec){background:rgba(42,35,68,.03)}
.compare-table tbody tr:last-child th,
.compare-table tbody tr:last-child td{border-bottom:0}
.table-hint{margin-top:14px;font-size:12.5px;color:var(--t3);line-height:1.8}

/* ---------- FAQ ---------- */
.faq-list{margin-top:36px;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:20px;
  padding:22px 0;
  text-align:left;
  font-size:16px;
  font-weight:600;
  color:var(--ink);
  transition:color .2s;
}
.faq-q:hover{color:var(--amber)}
.faq-icon{
  position:relative;
  flex-shrink:0;
  width:18px;height:18px;
  transition:transform .25s;
}
.faq-icon::before,.faq-icon::after{
  content:"";
  position:absolute;
  background:var(--t2);
  border-radius:2px;
  transition:background .2s;
}
.faq-icon::before{left:0;top:8px;width:18px;height:1.6px}
.faq-icon::after{left:8px;top:0;width:1.6px;height:18px}
.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(--amber)}
.faq-a{
  max-height:0;
  overflow:hidden;
  transition:max-height .3s ease;
}
.faq-a p{
  padding:0 40px 24px 0;
  font-size:14px;
  line-height:1.85;
  color:var(--t2);
  max-width:760px;
}

/* ---------- 相关分类 ---------- */
.related{padding:72px 0}
.related h2{font-size:22px;font-weight:700;color:var(--ink)}
.related-links{
  display:flex;
  flex-wrap:wrap;
  gap:12px;
  margin-top:22px;
}
.related-links a{
  display:inline-flex;
  align-items:center;
  gap:10px;
  height:44px;
  padding:0 20px;
  border-radius:999px;
  background:var(--card);
  border:1px solid var(--line);
  font-size:14px;
  font-weight:600;
  color:var(--ink);
  box-shadow:var(--shadow);
  transition:border-color .2s,color .2s,transform .15s,box-shadow .2s;
}
.related-links a::after{
  content:"→";
  font-size:14px;
  color:var(--cyan);
  transition:transform .2s,color .2s;
}
.related-links a:hover{
  border-color:rgba(42,35,68,.3);
  color:var(--ink-deep);
  transform:translateY(-2px);
  box-shadow:var(--shadow-hover);
}
.related-links a:hover::after{transform:translateX(3px);color:var(--amber)}

/* ---------- CTA ---------- */
.cta-band{
  background:var(--ink-deep);
  color:var(--inv);
  padding:64px 0;
  position:relative;
  overflow:hidden;
}
.cta-band::before{
  content:"";
  position:absolute;inset:0;
  background-image:
    radial-gradient(circle at 18% 30%, rgba(247,244,238,.09) 0 1.5px, transparent 1.6px),
    radial-gradient(circle at 68% 22%, rgba(247,244,238,.07) 0 1.5px, transparent 1.6px),
    radial-gradient(circle at 82% 74%, rgba(247,244,238,.09) 0 1.5px, transparent 1.6px),
    radial-gradient(circle at 40% 82%, rgba(247,244,238,.06) 0 1.5px, transparent 1.6px);
  pointer-events:none;
}
.cta-inner{
  position:relative;
  z-index:2;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:40px;
}
.cta-inner h2{font-size:24px;line-height:1.4;font-weight:700;color:#fff}
.cta-inner p{margin-top:10px;font-size:15px;line-height:1.8;color:rgba(247,244,238,.74);max-width:560px}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px;flex-shrink:0}

/* ---------- 页脚 ---------- */
.site-footer{
  background:var(--ink-deep);
  color:rgba(247,244,238,.76);
  padding:72px 0 0;
  font-size:14px;
}
.footer-grid{
  display:grid;
  grid-template-columns:1.6fr 1fr 1fr 1.2fr;
  gap:48px;
  padding-bottom:48px;
}
.footer-brand .brand{margin-bottom:18px}
.footer-about{font-size:14px;line-height:1.85;color:rgba(247,244,238,.66);max-width:340px}
.footer-words{display:flex;flex-wrap:wrap;gap:8px;margin-top:18px}
.footer-words span{
  font-size:12px;
  padding:4px 10px;
  border-radius:999px;
  border:1px solid rgba(247,244,238,.16);
  color:rgba(247,244,238,.62);
}
.footer-col h4{
  font-size:14px;
  font-weight:700;
  color:#fff;
  letter-spacing:.06em;
  margin-bottom:16px;
}
.footer-col ul{display:flex;flex-direction:column;gap:10px}
.footer-col a{
  font-size:14px;
  color:rgba(247,244,238,.7);
  transition:color .2s;
}
.footer-col a:hover{color:var(--amber)}
.footer-contact li{
  display:flex;
  gap:10px;
  font-size:14px;
  line-height:1.7;
  color:rgba(247,244,238,.7);
}
.footer-contact strong{
  flex-shrink:0;
  font-weight:600;
  color:rgba(247,244,238,.9);
}
.footer-bottom{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  flex-wrap:wrap;
  padding:20px 0 26px;
  border-top:1px solid rgba(247,244,238,.12);
  font-size:13px;
  color:rgba(247,244,238,.55);
}
.footer-bottom .sep{margin:0 8px;color:rgba(247,244,238,.32)}

/* ---------- 响应式 ---------- */
@media (max-width:1100px){
  .nav-menu{gap:20px}
  .nav-actions .nav-phone{display:none}
}
@media (max-width:992px){
  .nav-menu,.nav-actions .nav-cta{display:none}
  .nav-toggle{display:flex}
  .page-head{padding:60px 0 64px}
  .page-head-grid{grid-template-columns:1fr;gap:40px}
  .page-head h1{font-size:38px}
  .page-head-media{aspect-ratio:16/10;max-width:560px}
  .section{padding:72px 0}
  .price-grid{grid-template-columns:1fr;gap:20px}
  .price-card.is-rec{transform:none;padding-top:30px}
  .price-card.is-rec:hover{transform:translateY(-2px)}
  .delivery-grid{grid-template-columns:1fr;gap:36px}
  .flow{grid-template-columns:repeat(2,1fr);gap:28px}
  .cta-inner{flex-direction:column;align-items:flex-start;gap:28px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:36px}
  .footer-about{max-width:none}
}
@media (max-width:767px){
  .container{padding:0 18px}
  .section{padding:56px 0}
  .section-head{flex-direction:column;align-items:flex-start;gap:12px}
  .section-head h2,.delivery-grid h2{font-size:24px}
  .page-head{padding:48px 0 56px}
  .page-head h1{font-size:31px;line-height:1.3}
  .page-head .lede{font-size:15px}
  .page-head-actions .btn{flex:1 1 100%}
  .head-facts{gap:10px 20px;padding-top:20px}
  .flow{grid-template-columns:1fr}
  .faq-a p{padding-right:0}
  .cta-band{padding:52px 0}
  .cta-inner h2{font-size:21px}
  .cta-actions{width:100%}
  .cta-actions .btn{flex:1 1 100%}
  .footer-bottom{flex-direction:column;align-items:flex-start;gap:8px}
  .related{padding:56px 0}
}
@media (max-width:520px){
  .brand-name{font-size:16px}
  .price-num .num{font-size:34px}
  .row-item{padding:16px}
  .footer-grid{grid-template-columns:1fr;gap:30px}
  .related-links a{width:100%;justify-content:space-between}
}