/* roulang page: index */
:root{
  --brand:#FF4A17;
  --brand-deep:#C9350A;
  --accent:#00D8B4;
  --ink:#0E1116;
  --ink-2:#2A3038;
  --muted:#6E6A64;
  --bg:#F6F4F1;
  --surface:#FFFFFF;
  --line:#E6E1DA;
  --gold:#FFC53D;
  --radius-card:14px;
  --radius-btn:10px;
  --radius-block:20px;
  --shadow-1:0 1px 2px rgba(14,17,22,.06);
  --shadow-2:0 14px 30px -18px rgba(14,17,22,.30);
  --sec:80px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  background:var(--bg);
  color:var(--ink);
  font-family:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:16px;
  line-height:1.8;
  font-variant-numeric:tabular-nums;
  -webkit-font-smoothing:antialiased;
}
img{display:block;max-width:100%;height:auto}
a{color:inherit;text-decoration:none}
ul{margin:0;padding:0;list-style:none}
h1,h2,h3,h4,p{margin:0}
button,input,select,textarea{font:inherit;color:inherit}
button{border:0;background:none;cursor:pointer}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 16px}
@media (min-width:768px){.container{padding:0 24px}}
@media (min-width:1280px){.container{padding:0 32px}}
@media (max-width:767px){:root{--sec:48px}}

/* 通用按钮 */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:44px;padding:0 20px;border-radius:var(--radius-btn);
  font-size:15px;font-weight:600;line-height:1;white-space:nowrap;
  transition:background .2s ease-out,color .2s ease-out,border-color .2s ease-out,transform .2s ease-out,box-shadow .2s ease-out;
}
.btn-primary{background:var(--brand);color:#fff;box-shadow:0 10px 24px -16px rgba(255,74,23,.9)}
.btn-primary:hover{background:var(--brand-deep);transform:translateY(-1px)}
.btn-primary:active{transform:translateY(0)}
.btn-ghost{background:var(--surface);color:var(--ink);border:1px solid var(--line)}
.btn-ghost:hover{border-color:var(--ink);transform:translateY(-1px)}
.btn-light{background:#F5F3F0;color:var(--ink)}
.btn-light:hover{background:#fff}
.btn-sm{min-height:40px;padding:0 16px;font-size:14px}

/* 顶部导航 */
.site-header{
  position:sticky;top:0;z-index:60;
  background:var(--bg);
  padding:12px 0 10px;
  border-bottom:1px solid rgba(230,225,218,.85);
}
.nav-card{
  display:flex;align-items:center;gap:14px;
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--radius-card);
  box-shadow:var(--shadow-1);
  padding:10px 12px;
}
.brand{display:flex;align-items:center;gap:10px;min-height:44px}
.brand-mark{
  width:40px;height:40px;border-radius:12px;flex:0 0 auto;
  background:var(--brand);color:#fff;
  display:flex;align-items:center;justify-content:center;font-size:17px;
  box-shadow:0 8px 20px -12px rgba(255,74,23,.95);
}
.brand-text{font-size:17px;font-weight:800;letter-spacing:-.01em;line-height:1.2}
.brand-sub{display:block;font-size:11px;font-weight:500;color:var(--muted);letter-spacing:.04em}
.nav-links{display:flex;align-items:center;gap:2px;margin-left:6px}
.nav-item{
  position:relative;display:inline-flex;align-items:center;gap:8px;
  min-height:44px;padding:0 12px;border-radius:10px;
  font-size:14px;font-weight:500;color:var(--ink-2);
  transition:background .2s ease-out,color .2s ease-out;
}
.nav-item i{font-size:15px;color:var(--muted);transition:color .2s ease-out}
.nav-item:hover{background:var(--bg);color:var(--ink)}
.nav-item:hover i{color:var(--brand)}
.nav-item.active{color:var(--ink);font-weight:700}
.nav-item.active i{color:var(--brand)}
.nav-item.active::after{
  content:"";position:absolute;left:12px;right:12px;top:-11px;height:2px;
  background:var(--brand);border-radius:2px;
}
.nav-actions{margin-left:auto;display:flex;align-items:center;gap:10px}
.nav-toggle{
  display:none;width:44px;height:44px;border-radius:10px;
  border:1px solid var(--line);background:var(--surface);
  align-items:center;justify-content:center;font-size:16px;color:var(--ink);
}
.mobile-panel{
  display:none;margin-top:10px;background:var(--surface);
  border:1px solid var(--line);border-radius:var(--radius-card);
  box-shadow:var(--shadow-1);padding:14px;
}
.mobile-panel.open{display:block}
.mobile-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:10px}
.mobile-grid a{
  display:flex;flex-direction:column;align-items:center;justify-content:center;gap:6px;
  min-height:78px;border-radius:12px;background:var(--bg);
  font-size:12px;font-weight:600;color:var(--ink-2);text-align:center;
  transition:background .2s ease-out,color .2s ease-out;
}
.mobile-grid a i{font-size:18px;color:var(--brand)}
.mobile-grid a:hover{background:#fff;color:var(--ink)}
.mobile-panel .btn{width:100%;margin-top:12px}
@media (max-width:1023px){
  .nav-links,.nav-actions{display:none}
  .nav-toggle{display:inline-flex;margin-left:auto}
}

/* Hero */
.hero{position:relative;padding:36px 0 0;overflow:hidden}
.hero::before{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:repeating-linear-gradient(45deg,rgba(14,17,22,.045) 0 1px,transparent 1px 11px);
}
.hero-deco{
  position:absolute;top:-60px;right:-80px;width:340px;height:340px;
  background-image:radial-gradient(rgba(255,74,23,.22) 1.4px,transparent 1.4px);
  background-size:16px 16px;opacity:.55;pointer-events:none;
}
.hero-grid{
  position:relative;display:grid;grid-template-columns:1fr;gap:36px;align-items:center;
  padding-bottom:8px;
}
@media (min-width:1024px){
  .hero-grid{grid-template-columns:58fr 42fr;gap:48px;padding-bottom:16px}
}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  padding:6px 12px;border-radius:6px;background:rgba(255,74,23,.10);
  color:var(--brand-deep);font-size:13px;font-weight:600;margin-bottom:18px;
}
.hero-title{
  font-size:clamp(30px,4.2vw,52px);
  font-weight:800;line-height:1.15;letter-spacing:-.02em;
  color:var(--ink);
}
.hero-sub{
  margin-top:18px;max-width:600px;
  font-size:16px;line-height:1.85;color:var(--muted);
}
.hero-cta{display:flex;flex-wrap:wrap;gap:12px;margin-top:26px}
.hero-stats{display:flex;flex-wrap:wrap;gap:28px;margin-top:34px;padding-top:24px;border-top:1px solid var(--line)}
.stat-num{display:block;font-size:24px;font-weight:800;line-height:1.2;color:var(--ink);letter-spacing:-.01em}
.stat-label{display:block;font-size:13px;color:var(--muted);margin-top:2px}
.hero-media{position:relative}
.hero-img{
  width:100%;aspect-ratio:4/3;object-fit:cover;
  border-radius:var(--radius-block);border:1px solid var(--line);
  box-shadow:var(--shadow-2);
}
.hero-img-sm{
  position:absolute;left:-18px;bottom:-20px;width:33%;aspect-ratio:4/3;object-fit:cover;
  border-radius:var(--radius-card);border:4px solid var(--surface);box-shadow:var(--shadow-2);
}
.hero-stripe{
  position:absolute;top:18px;right:-10px;width:6px;height:34%;
  background:var(--brand);border-radius:6px;transform:rotate(9deg);
}
@media (max-width:767px){
  .hero-img-sm{display:none}
  .hero-stripe{width:4px;right:-6px}
}

/* 板块通用 */
.section{margin-top:var(--sec)}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:20px;margin-bottom:28px}
.section-title{font-size:clamp(22px,2.6vw,32px);font-weight:700;line-height:1.3;letter-spacing:-.01em}
.section-desc{margin-top:8px;font-size:15px;color:var(--muted);max-width:640px}
.link-more{
  font-size:14px;font-weight:600;color:var(--ink-2);white-space:nowrap;
  display:inline-flex;align-items:center;gap:6px;
  transition:color .2s ease-out;
}
.link-more:hover{color:var(--brand);text-decoration:underline;text-underline-offset:3px;text-decoration-thickness:2px}
.link-more i{font-size:12px}

/* 商品卡 */
.product-grid{display:grid;grid-template-columns:1fr;gap:18px}
@media (min-width:640px){.product-grid{grid-template-columns:repeat(2,1fr)}}
@media (min-width:1024px){.product-grid{grid-template-columns:repeat(4,1fr);gap:20px}}
.product-card{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-card);
  box-shadow:var(--shadow-1);overflow:hidden;
  transition:transform .2s ease-out,box-shadow .2s ease-out,border-color .2s ease-out;
}
.product-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-2);border-color:rgba(255,74,23,.2)}
.product-media{position:relative;aspect-ratio:4/3;overflow:hidden;background:var(--bg)}
.product-media img{width:100%;height:100%;object-fit:cover;transition:transform .25s ease-out}
.product-card:hover .product-media img{transform:scale(1.04)}
.tag{
  position:absolute;top:10px;left:10px;
  padding:3px 9px;border-radius:6px;font-size:12px;font-weight:700;line-height:1.6;
}
.tag-solid{background:var(--brand);color:#fff}
.tag-line{background:rgba(255,255,255,.94);color:var(--brand-deep);border:1px solid rgba(255,74,23,.45)}
.product-body{padding:14px 16px 16px}
.product-title{
  font-size:16px;font-weight:700;line-height:1.5;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.product-note{margin-top:6px;font-size:13px;color:var(--muted);line-height:1.6}
.product-foot{display:flex;align-items:center;justify-content:space-between;margin-top:14px}
.price{font-size:18px;font-weight:700;color:var(--brand)}
.icon-btn{
  width:34px;height:34px;border-radius:50%;
  display:inline-flex;align-items:center;justify-content:center;
  background:var(--bg);color:var(--ink-2);font-size:13px;
  transition:background .2s ease-out,color .2s ease-out;
}
.icon-btn:hover{background:var(--brand);color:#fff}

/* 评价轮播 */
.review-wrap{position:relative}
.review-track{
  display:flex;gap:18px;overflow-x:auto;scroll-snap-type:x mandatory;
  padding:4px 2px 18px;scrollbar-width:none;
}
.review-track::-webkit-scrollbar{display:none}
.review-card{
  scroll-snap-align:start;flex:0 0 86%;
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-card);
  box-shadow:var(--shadow-1);padding:20px;
}
@media (min-width:768px){.review-card{flex:0 0 calc((100% - 36px)/2)}}
@media (min-width:1024px){.review-card{flex:0 0 calc((100% - 48px)/3)}}
.review-head{display:flex;align-items:center;gap:12px}
.avatar{
  width:42px;height:42px;border-radius:50%;flex:0 0 auto;
  background:rgba(255,74,23,.12);color:var(--brand-deep);
  display:flex;align-items:center;justify-content:center;font-weight:700;font-size:16px;
}
.review-name{font-size:15px;font-weight:700;line-height:1.4}
.review-role{font-size:12px;color:var(--muted);line-height:1.5}
.stars{margin-top:12px;color:var(--gold);font-size:14px;letter-spacing:2px}
.review-text{margin-top:10px;font-size:14px;line-height:1.8;color:var(--ink-2)}
.review-nav{display:flex;gap:10px;margin-top:4px}
.review-btn{
  width:44px;height:44px;border-radius:10px;
  border:1px solid var(--line);background:var(--surface);color:var(--ink);
  display:inline-flex;align-items:center;justify-content:center;
  transition:background .2s ease-out,color .2s ease-out,border-color .2s ease-out;
}
.review-btn:hover:not(:disabled){background:var(--brand);border-color:var(--brand);color:#fff}
.review-btn:disabled{opacity:.4;cursor:not-allowed}

/* 保障条 */
.guarantee{
  margin-top:var(--sec);
  background:var(--ink);border-radius:var(--radius-block);
  padding:26px 20px;
}
.guarantee-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:18px}
@media (min-width:768px){.guarantee-grid{grid-template-columns:repeat(4,1fr)}}
.g-item{
  display:flex;align-items:center;justify-content:center;gap:10px;
  color:#F5F3F0;font-size:14px;font-weight:500;text-align:center;
}
.g-item i{font-size:18px;color:var(--accent)}

/* 资讯列表 */
.news-grid{display:grid;grid-template-columns:1fr;gap:18px}
@media (min-width:640px){.news-grid{grid-template-columns:repeat(2,1fr)}}
@media (min-width:1024px){.news-grid{grid-template-columns:repeat(3,1fr);gap:20px}}
.news-card{
  display:flex;flex-direction:column;
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-card);
  box-shadow:var(--shadow-1);padding:18px;
  transition:transform .2s ease-out,box-shadow .2s ease-out,border-color .2s ease-out;
}
.news-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-2);border-color:rgba(255,74,23,.2)}
.badge{
  display:inline-block;padding:3px 9px;border-radius:6px;
  background:rgba(255,74,23,.10);color:var(--brand-deep);
  font-size:12px;font-weight:700;line-height:1.7;
}
.news-title{
  margin-top:12px;font-size:17px;font-weight:700;line-height:1.55;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.news-excerpt{
  margin-top:8px;font-size:14px;line-height:1.8;color:var(--muted);
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.news-foot{
  margin-top:auto;padding-top:16px;display:flex;align-items:center;justify-content:space-between;
  font-size:13px;color:var(--muted);
}
.news-arrow{
  width:32px;height:32px;border-radius:50%;
  display:inline-flex;align-items:center;justify-content:center;
  background:var(--bg);color:var(--ink-2);font-size:12px;
  transition:background .2s ease-out,color .2s ease-out;
}
.news-card:hover .news-arrow{background:var(--brand);color:#fff}
.news-empty{
  grid-column:1/-1;display:flex;flex-direction:column;align-items:center;gap:14px;
  padding:48px 20px;border:1px dashed var(--line);border-radius:var(--radius-card);
  background:var(--surface);color:var(--muted);font-size:14px;text-align:center;
}
.news-empty i{font-size:26px;color:var(--line)}

/* 咨询 CTA 条 */
.cta-bar{
  margin-top:var(--sec);
  background:var(--ink);border-radius:var(--radius-block);
  padding:28px 24px;
  display:flex;flex-direction:column;gap:20px;align-items:flex-start;
  position:relative;overflow:hidden;
}
.cta-bar::after{
  content:"";position:absolute;right:-40px;top:-40px;width:200px;height:200px;
  background-image:radial-gradient(rgba(0,216,180,.28) 1.3px,transparent 1.3px);
  background-size:14px 14px;opacity:.6;
}
@media (min-width:768px){
  .cta-bar{flex-direction:row;align-items:center;justify-content:space-between;padding:32px 36px}
}
.cta-bar h2{font-size:clamp(20px,2.3vw,26px);font-weight:700;line-height:1.35;color:#F5F3F0;position:relative;z-index:1}
.cta-bar p{margin-top:8px;font-size:14px;color:#B9B4AD;position:relative;z-index:1}

/* FAQ */
.faq-list{margin-top:8px;border-top:1px solid var(--line)}
.faq-item{border-bottom:1px solid var(--line)}
.faq-item summary{
  list-style:none;cursor:pointer;
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  min-height:60px;padding:14px 4px 14px 0;
  font-size:16px;font-weight:600;color:var(--ink);line-height:1.6;
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::after{
  content:"\f054";font-family:"Font Awesome 6 Free";font-weight:900;
  font-size:12px;color:var(--muted);transition:transform .2s ease-out,color .2s ease-out;
}
.faq-item[open] summary::after{transform:rotate(90deg);color:var(--brand)}
.faq-item[open] summary{border-left:3px solid var(--brand);padding-left:14px}
.faq-answer{padding:0 4px 20px 0;font-size:15px;line-height:1.85;color:var(--muted)}
.faq-item[open] .faq-answer{padding-left:14px}

/* 页脚 */
.site-footer{margin-top:var(--sec);background:var(--ink);color:#F5F3F0}
.footer-strip{
  height:8px;
  background-image:repeating-linear-gradient(45deg,rgba(255,74,23,.85) 0 8px,rgba(14,17,22,0) 8px 16px);
}
.footer-grid{
  display:grid;grid-template-columns:1fr;gap:32px;
  padding-top:48px;padding-bottom:36px;
}
@media (min-width:768px){.footer-grid{grid-template-columns:1.4fr 1fr 1fr 1.1fr;gap:28px}}
.footer-brand{display:flex;align-items:center;gap:10px;min-height:44px}
.footer-brand .brand-text{color:#F5F3F0}
.footer-brand .brand-sub{color:#B9B4AD}
.footer-about{margin-top:14px;font-size:14px;line-height:1.85;color:#B9B4AD;max-width:340px}
.footer-title{font-size:14px;font-weight:700;color:#F5F3F0;margin-bottom:14px;letter-spacing:.02em}
.footer-list li{margin-bottom:10px}
.footer-list a{font-size:14px;color:#B9B4AD;transition:color .2s ease-out}
.footer-list a:hover{color:var(--accent)}
.footer-bottom{
  border-top:1px solid rgba(245,243,240,.12);
  padding-top:20px;padding-bottom:26px;
  display:flex;flex-direction:column;gap:8px;
  font-size:13px;color:#B9B4AD;
}
@media (min-width:768px){.footer-bottom{flex-direction:row;align-items:center;justify-content:space-between}}

/* roulang page: article */
:root{
  --brand:#FF4A17;
  --brand-deep:#C9350A;
  --accent:#00D8B4;
  --ink:#0E1116;
  --ink-2:#2A3038;
  --muted:#6E6A64;
  --bg:#F6F4F1;
  --surface:#FFFFFF;
  --line:#E6E1DA;
  --gold:#FFC53D;
  --r-card:14px;
  --r-btn:10px;
  --r-lg:20px;
  --r-badge:6px;
  --sh-1:0 1px 2px rgba(14,17,22,.06);
  --sh-2:0 14px 30px -18px rgba(14,17,22,.30);
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  background:var(--bg);
  color:var(--ink);
  font-family:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
  font-size:16px;
  line-height:1.8;
  font-variant-numeric:tabular-nums;
}
img{max-width:100%;display:block;border:0}
a{color:inherit;text-decoration:none}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4{margin:0;font-weight:700;line-height:1.3;letter-spacing:-0.01em}
p{margin:0 0 1em}
figure{margin:0}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px;border-radius:6px}
.container{width:100%;max-width:1200px;margin:0 auto;padding-left:16px;padding-right:16px}
@media (min-width:768px){.container{padding-left:24px;padding-right:24px}}
@media (min-width:1280px){.container{padding-left:32px;padding-right:32px}}

/* ---------- 导航 ---------- */
.site-header{position:sticky;top:0;z-index:60;background:var(--bg);border-bottom:1px solid var(--line)}
.nav-panel{
  display:flex;align-items:center;gap:18px;
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-card);
  box-shadow:var(--sh-1);padding:10px 14px;margin:12px 0;
}
.brand{display:flex;align-items:center;gap:10px;flex:none}
.brand > span:last-child{display:flex;flex-direction:column;line-height:1.25}
.brand .brand-mark{
  width:38px;height:38px;border-radius:10px;background:var(--brand);color:#fff;
  display:grid;place-items:center;font-size:16px;flex:none;
  box-shadow:0 8px 18px -12px rgba(255,74,23,.9);
}
.brand .brand-text{font-size:16px;font-weight:800;color:var(--ink);letter-spacing:-0.01em}
.brand .brand-sub{font-size:11px;font-weight:500;color:var(--muted);letter-spacing:.02em}
.nav-links{display:flex;align-items:center;gap:4px;margin-left:auto}
.nav-item{
  position:relative;display:inline-flex;align-items:center;gap:6px;
  padding:10px 12px;border-radius:var(--r-btn);min-height:44px;
  font-size:14px;font-weight:600;color:var(--ink-2);
  transition:background .2s ease-out,color .2s ease-out;
}
.nav-item i{font-size:13px;opacity:.75}
.nav-item:hover{background:var(--bg);color:var(--brand)}
.nav-item:hover i{opacity:1}
.nav-item.active{color:var(--brand);background:#FFF1EC}
.nav-item.active::before{content:"";position:absolute;top:0;left:12px;right:12px;height:2px;border-radius:2px;background:var(--brand)}
.nav-cta{flex:none}
.nav-toggle{
  display:none;width:44px;height:44px;border-radius:var(--r-btn);
  border:1px solid var(--line);background:var(--surface);color:var(--ink);
  align-items:center;justify-content:center;font-size:16px;margin-left:auto;
  transition:border-color .2s ease-out,color .2s ease-out;
}
.nav-toggle:hover{border-color:var(--ink);color:var(--brand)}
.mobile-panel{display:none;background:var(--surface);border:1px solid var(--line);border-radius:var(--r-card);box-shadow:var(--sh-2);padding:12px;margin-bottom:14px}
.mobile-panel.open{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:8px}
.mobile-link{
  display:flex;flex-direction:column;align-items:center;justify-content:center;gap:6px;
  min-height:44px;padding:12px 6px;border-radius:var(--r-btn);background:var(--bg);
  font-size:13px;font-weight:600;color:var(--ink-2);text-align:center;
  transition:color .2s ease-out,background .2s ease-out;
}
.mobile-link i{font-size:15px;color:var(--muted)}
.mobile-link:hover{color:var(--brand);background:#FFF1EC}
.mobile-link:hover i{color:var(--brand)}
.mobile-cta{grid-column:1 / -1;margin-top:4px}
@media (max-width:1023px){
  .nav-links{display:none}
  .nav-cta{display:none}
  .nav-toggle{display:inline-flex}
}
@media (min-width:1024px){
  .nav-toggle{display:none!important}
  .mobile-panel{display:none!important}
}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:44px;padding:11px 18px;border-radius:var(--r-btn);
  font-size:14px;font-weight:700;border:1px solid transparent;
  transition:background .2s ease-out,transform .2s ease-out,border-color .2s ease-out,color .2s ease-out;
}
.btn-primary{background:var(--brand);color:#fff;box-shadow:0 10px 22px -16px rgba(255,74,23,1)}
.btn-primary:hover{background:var(--brand-deep);transform:translateY(-1px)}
.btn-primary:active{transform:translateY(0)}
.btn-ghost{background:var(--surface);border-color:var(--line);color:var(--ink)}
.btn-ghost:hover{border-color:var(--ink)}

/* ---------- 主区 ---------- */
.page-main{padding:22px 0 0}
.badge{
  display:inline-flex;align-items:center;gap:6px;align-self:flex-start;
  background:#FFF1EC;color:var(--brand-deep);
  font-size:12px;font-weight:700;padding:4px 10px;border-radius:var(--r-badge);
  letter-spacing:.01em;line-height:1.6;
}
.crumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;font-weight:500;color:var(--muted);margin-bottom:20px}
.crumb a{color:var(--muted);transition:color .2s ease-out}
.crumb a:hover{color:var(--brand)}
.crumb-sep{color:#C7C1B8}
.crumb-current{color:var(--ink-2);max-width:min(62vw,420px);overflow:hidden;text-overflow:ellipsis;white-space:nowrap}

/* ---------- 文章头 ---------- */
.article-shell{display:block}
.article-head{max-width:760px;margin:0 auto 22px}
.article-title{
  font-size:clamp(26px,3.2vw,40px);font-weight:800;line-height:1.2;
  letter-spacing:-0.02em;color:var(--ink);margin:14px 0 16px;
}
.article-meta{display:flex;flex-wrap:wrap;align-items:center;gap:10px;font-size:13px;font-weight:500;color:var(--muted)}
.article-meta i{margin-right:5px;font-size:12px;opacity:.85}
.meta-dot{width:4px;height:4px;border-radius:50%;background:#D7D1C8;display:inline-block}
.article-cover{max-width:920px;margin:0 auto 34px;border-radius:var(--r-lg);overflow:hidden;border:1px solid var(--line);box-shadow:var(--sh-1);background:#EDE9E4}
.article-cover img{width:100%;aspect-ratio:16/9;object-fit:cover}

/* ---------- 正文 ---------- */
.article-body{max-width:760px;margin:0 auto;font-size:17px;line-height:1.9;color:var(--ink-2)}
.article-body > *:first-child{margin-top:0}
.article-body p{margin:0 0 1.15em}
.article-body h2{
  font-size:clamp(20px,2.2vw,26px);font-weight:700;color:var(--ink);
  margin:40px 0 16px;padding-left:12px;line-height:1.4;
  border-left:3px solid var(--brand);
}
.article-body h3{font-size:18px;font-weight:600;color:var(--ink);margin:28px 0 12px;line-height:1.5}
.article-body h4{font-size:16px;font-weight:700;color:var(--ink);margin:22px 0 10px}
.article-body ul,.article-body ol{margin:0 0 1.2em;padding-left:1.35em}
.article-body ul{list-style:disc}
.article-body ol{list-style:decimal}
.article-body li{margin:0 0 .55em}
.article-body li::marker{color:var(--brand)}
.article-body img{border-radius:var(--r-card);border:1px solid var(--line);margin:26px auto}
.article-body figure{margin:26px 0}
.article-body figcaption{font-size:13px;color:var(--muted);text-align:center;margin-top:10px;line-height:1.7}
.article-body blockquote{
  margin:26px 0;padding:16px 20px;background:var(--surface);
  border-left:3px solid var(--brand);border-radius:0 12px 12px 0;
  color:var(--ink-2);font-size:16px;
}
.article-body blockquote p:last-child{margin-bottom:0}
.article-body a{color:var(--brand-deep);text-decoration:underline;text-underline-offset:3px}
.article-body a:hover{color:var(--brand)}
.article-body strong{color:var(--ink);font-weight:700}
.article-body hr{border:0;border-top:1px solid var(--line);margin:36px 0}
.article-body table{width:100%;border-collapse:collapse;margin:26px 0;font-size:15px}
.article-body th,.article-body td{border:1px solid var(--line);padding:10px 12px;text-align:left}
.article-body thead th{background:#F0ECE7;color:var(--ink);font-weight:700}
.article-body tbody tr:nth-child(even){background:#FBFAF8}

/* ---------- 空态 ---------- */
.empty-state{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-lg);
  box-shadow:var(--sh-1);padding:52px 26px;text-align:center;
}
.empty-state .empty-icon{
  width:52px;height:52px;border-radius:14px;background:var(--bg);color:var(--muted);
  display:grid;place-items:center;font-size:20px;margin:0 auto 16px;
}
.empty-state h2{font-size:20px;color:var(--ink);margin-bottom:8px}
.empty-state p{font-size:15px;color:var(--muted);max-width:420px;margin:0 auto 22px}

/* ---------- 相关推荐 ---------- */
.related{margin-top:64px;padding-top:40px;border-top:1px solid var(--line)}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:16px;margin-bottom:24px;flex-wrap:wrap}
.section-title{font-size:clamp(20px,2.4vw,28px);font-weight:700;color:var(--ink)}
.section-sub{font-size:13px;color:var(--muted);margin:6px 0 0}
.section-link{font-size:14px;font-weight:700;color:var(--brand-deep);display:inline-flex;align-items:center;gap:6px}
.section-link:hover{color:var(--brand);text-decoration:underline;text-underline-offset:3px}
.related-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:20px}
.post-card{
  display:flex;flex-direction:column;background:var(--surface);
  border:1px solid var(--line);border-radius:var(--r-card);overflow:hidden;
  box-shadow:var(--sh-1);
  transition:transform .2s ease-out,box-shadow .2s ease-out,border-color .2s ease-out;
}
.post-card:hover{transform:translateY(-2px);box-shadow:var(--sh-2);border-color:rgba(255,74,23,.2)}
.post-card .thumb{display:block;aspect-ratio:4/3;overflow:hidden;background:#EDE9E4}
.post-card .thumb img{width:100%;height:100%;object-fit:cover;transition:transform .2s ease-out}
.post-card:hover .thumb img{transform:scale(1.04)}
.post-card .body{display:flex;flex-direction:column;gap:9px;padding:16px 18px 18px;flex:1}
.post-card h3{
  font-size:16px;font-weight:700;line-height:1.45;color:var(--ink);
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.post-card p{
  font-size:13px;color:var(--muted);margin:0;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.post-card .foot{
  margin-top:auto;display:flex;align-items:center;justify-content:space-between;
  gap:10px;padding-top:10px;border-top:1px solid var(--line);
  font-size:13px;font-weight:600;color:var(--muted);
}
.post-card .foot i{color:var(--brand)}
.back-row{display:flex;justify-content:center;margin:36px 0 0}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--ink);color:#F5F3F0;margin-top:80px}
.footer-strip{height:6px;background:repeating-linear-gradient(45deg,rgba(255,74,23,.95) 0 10px,rgba(255,74,23,0) 10px 20px),#16191F}
.footer-grid{display:grid;grid-template-columns:1.7fr 1fr 1fr 1fr;gap:32px;padding:56px 0 36px}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:14px}
.footer-brand > span:last-child{display:flex;flex-direction:column;line-height:1.25}
.footer-brand .brand-mark{
  width:36px;height:36px;border-radius:10px;background:var(--brand);color:#fff;
  display:grid;place-items:center;font-size:15px;flex:none;
}
.footer-brand .brand-text{font-size:16px;font-weight:800;color:#F5F3F0;letter-spacing:-0.01em}
.footer-brand .brand-sub{font-size:11px;font-weight:500;color:#B9B4AD;letter-spacing:.02em}
.footer-about{font-size:14px;line-height:1.8;color:#B9B4AD;max-width:340px;margin:0}
.footer-title{font-size:14px;font-weight:700;color:#F5F3F0;margin:0 0 14px}
.footer-list li{margin-bottom:10px}
.footer-list a{font-size:14px;color:#B9B4AD;transition:color .2s ease-out}
.footer-list a:hover{color:var(--accent)}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.1);
  padding:18px 0 30px;display:flex;flex-wrap:wrap;justify-content:space-between;
  gap:8px;font-size:13px;color:#8E8981;
}
.footer-bottom p{margin:0}

@media (max-width:1023px){
  .related-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px;padding:44px 0 30px}
  .footer-about{max-width:none}
}
@media (max-width:640px){
  .page-main{padding-top:16px}
  .nav-panel{padding:8px 10px;gap:10px;margin:10px 0}
  .brand .brand-sub{display:none}
  .article-body{font-size:16px}
  .article-body h2{margin-top:32px}
  .related-grid{grid-template-columns:1fr}
  .section-head{align-items:flex-start}
  .footer-grid{grid-template-columns:1fr;gap:26px;padding:38px 0 26px}
  .footer-bottom{flex-direction:column}
}

/* roulang page: category1 */
:root{
    --brand:#FF4A17;
    --brand-deep:#C9350A;
    --accent:#00D8B4;
    --ink:#0E1116;
    --ink-2:#2A3038;
    --muted:#6E6A64;
    --bg:#F6F4F1;
    --surface:#FFFFFF;
    --line:#E6E1DA;
    --gold:#FFC53D;
    --r-card:14px;
    --r-btn:10px;
    --r-lg:20px;
    --r-badge:6px;
    --sh-1:0 1px 2px rgba(14,17,22,.06);
    --sh-2:0 14px 30px -18px rgba(14,17,22,.30);
    --sec-y:48px;
  }
  *,*::before,*::after{box-sizing:border-box;}
  html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
  body{
    margin:0;
    font-family:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
    background:var(--bg);
    color:var(--ink-2);
    font-size:16px;
    line-height:1.85;
    -webkit-font-smoothing:antialiased;
  }
  img{max-width:100%;display:block;}
  a{color:inherit;text-decoration:none;}
  button{font:inherit;color:inherit;background:none;border:0;cursor:pointer;}
  ul{margin:0;padding:0;list-style:none;}
  h1,h2,h3,h4{margin:0;color:var(--ink);font-weight:700;line-height:1.3;}
  p{margin:0;}
  :focus-visible{outline:2px solid var(--brand);outline-offset:2px;border-radius:6px;}
  .num{font-variant-numeric:tabular-nums;}

  .container{width:100%;max-width:1200px;margin:0 auto;padding:0 16px;}
  @media (min-width:768px){.container{padding:0 24px;}}
  @media (min-width:1280px){.container{padding:0 32px;}}

  .section{padding:var(--sec-y) 0 0;}
  @media (min-width:768px){:root{--sec-y:80px;}}

  .sec-head{display:flex;align-items:flex-end;justify-content:space-between;gap:20px;margin-bottom:26px;flex-wrap:wrap;}
  .sec-head h2{font-size:clamp(22px,2.6vw,32px);font-weight:700;}
  .sec-head p{font-size:14px;color:var(--muted);margin-top:8px;max-width:560px;}
  .sec-link{font-size:14px;font-weight:600;color:var(--ink-2);display:inline-flex;align-items:center;gap:7px;min-height:44px;transition:color .18s ease;}
  .sec-link:hover{color:var(--brand);text-decoration:underline;text-underline-offset:3px;text-decoration-thickness:2px;}

  /* 顶部导航 */
  .site-header{position:sticky;top:0;z-index:60;background:var(--bg);border-bottom:1px solid rgba(230,225,218,.9);padding:10px 0;}
  .nav-panel{position:relative;display:flex;align-items:center;gap:14px;background:var(--surface);border:1px solid var(--line);border-radius:var(--r-card);box-shadow:var(--sh-1);padding:10px 12px;}
  .brand{display:flex;align-items:center;gap:10px;flex:0 0 auto;}
  .brand-mark{width:36px;height:36px;border-radius:10px;background:var(--brand);color:#fff;display:grid;place-items:center;font-size:15px;box-shadow:0 8px 16px -10px rgba(255,74,23,.95);}
  .brand-text{font-size:17px;font-weight:800;color:var(--ink);letter-spacing:-.01em;white-space:nowrap;}
  .nav-links{display:flex;align-items:center;gap:4px;margin-left:6px;flex:1 1 auto;}
  .nav-item{position:relative;display:inline-flex;align-items:center;gap:7px;padding:10px 12px;border-radius:var(--r-btn);font-size:14px;font-weight:500;color:var(--muted);white-space:nowrap;transition:background .18s ease,color .18s ease;}
  .nav-item i{font-size:14px;transition:color .18s ease;}
  .nav-item:hover{background:var(--bg);color:var(--ink);}
  .nav-item:hover i{color:var(--brand);}
  .nav-item.active{color:var(--brand-deep);background:rgba(255,74,23,.09);font-weight:600;}
  .nav-item.active i{color:var(--brand);}
  .nav-item.active::before{content:"";position:absolute;left:12px;right:12px;top:-10px;height:2px;border-radius:2px;background:var(--brand);}
  .nav-actions{display:flex;align-items:center;gap:8px;margin-left:auto;}
  .nav-toggle{display:none;width:44px;height:44px;border-radius:var(--r-btn);border:1px solid var(--line);background:#fff;color:var(--ink);align-items:center;justify-content:center;font-size:16px;transition:border-color .18s ease;}
  .nav-toggle:hover{border-color:var(--ink);}

  @media (max-width:1023px){
    .nav-toggle{display:inline-flex;}
    .nav-actions .btn-nav{display:none;}
    .nav-links{
      position:absolute;left:10px;right:10px;top:calc(100% + 10px);
      display:none;flex-direction:column;align-items:stretch;gap:4px;margin-left:0;
      background:var(--surface);border:1px solid var(--line);border-radius:var(--r-card);
      box-shadow:var(--sh-2);padding:10px;
    }
    .nav-links.open{display:flex;}
    .nav-item{padding:12px 14px;font-size:15px;min-height:44px;}
    .nav-item.active::before{display:none;}
  }
  @media (max-width:519px){
    .brand-text{font-size:15px;}
  }

  /* 按钮 */
  .btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;min-height:44px;padding:0 22px;border-radius:var(--r-btn);font-size:15px;font-weight:600;border:1px solid transparent;white-space:nowrap;transition:background .2s ease,color .2s ease,border-color .2s ease,transform .2s ease,box-shadow .2s ease;}
  .btn-primary{background:var(--brand);color:#fff;box-shadow:0 12px 22px -16px rgba(255,74,23,.95);}
  .btn-primary:hover{background:var(--brand-deep);transform:translateY(-1px);}
  .btn-primary:active{transform:translateY(0);}
  .btn-ghost{background:#fff;color:var(--ink);border-color:var(--line);}
  .btn-ghost:hover{border-color:var(--ink);}
  .btn-outline-light{background:transparent;color:#F5F3F0;border-color:rgba(245,243,240,.42);}
  .btn-outline-light:hover{background:rgba(245,243,240,.12);border-color:#F5F3F0;}
  .btn-sm{min-height:38px;padding:0 16px;font-size:14px;}

  /* 面包屑 */
  .crumbs{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--muted);padding:20px 0 0;}
  .crumbs a{min-height:28px;display:inline-flex;align-items:center;transition:color .18s ease;}
  .crumbs a:hover{color:var(--brand);}
  .crumbs .sep{color:#C6C0B8;}

  /* Hero */
  .page-hero{position:relative;overflow:hidden;border-radius:var(--r-lg);margin-top:18px;background:#0E1116 url("/assets/images/backpic/back-1.png") center/cover no-repeat;color:#F5F3F0;padding:40px 22px 34px;}
  .page-hero::before{content:"";position:absolute;inset:0;background:linear-gradient(104deg,rgba(14,17,22,.95) 0%,rgba(14,17,22,.80) 46%,rgba(14,17,22,.42) 100%);}
  .page-hero::after{content:"";position:absolute;inset:0;background:repeating-linear-gradient(45deg,rgba(255,255,255,.05) 0 2px,transparent 2px 12px);opacity:.6;pointer-events:none;}
  .hero-inner{position:relative;z-index:2;display:grid;grid-template-columns:1fr;gap:30px;}
  @media (min-width:1024px){
    .page-hero{padding:56px 48px 48px;}
    .hero-inner{grid-template-columns:58% 42%;gap:36px;align-items:center;}
  }
  .hero-eyebrow{display:inline-flex;align-items:center;gap:8px;font-size:13px;font-weight:600;color:var(--accent);background:rgba(0,216,180,.10);border:1px solid rgba(0,216,180,.28);border-radius:var(--r-badge);padding:5px 11px;}
  .hero-inner h1{margin-top:18px;font-size:clamp(30px,4.2vw,52px);font-weight:800;line-height:1.15;letter-spacing:-.02em;color:#FFFFFF;}
  .hero-sub{margin-top:16px;font-size:16px;line-height:1.85;color:#D5D0C9;max-width:640px;}
  .hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:28px;}
  .hero-stats{display:flex;flex-wrap:wrap;gap:26px;margin-top:30px;padding-top:22px;border-top:1px solid rgba(255,255,255,.15);}
  .hero-stat strong{display:block;font-size:24px;font-weight:800;color:#FFFFFF;line-height:1.25;}
  .hero-stat span{font-size:13px;color:#B9B4AD;}
  .hero-aside{position:relative;border-radius:var(--r-card);overflow:hidden;border:1px solid rgba(255,255,255,.16);background:rgba(14,17,22,.35);}
  .hero-aside img{width:100%;aspect-ratio:4/3;object-fit:cover;opacity:.92;}
  .hero-aside-note{position:absolute;left:14px;right:14px;bottom:14px;background:rgba(14,17,22,.82);border:1px solid rgba(255,255,255,.14);border-radius:10px;padding:12px 14px;}
  .hero-aside-note h3{color:#F5F3F0;font-size:15px;font-weight:600;}
  .hero-aside-note p{font-size:13px;color:#B9B4AD;margin-top:4px;}
  .hero-aside::before{content:"";position:absolute;left:-6px;top:18px;width:64px;height:3px;background:var(--brand);transform:rotate(-24deg);z-index:3;}

  /* 筛选标签行 */
  .filter-row{display:flex;align-items:center;gap:12px;flex-wrap:wrap;background:var(--surface);border:1px solid var(--line);border-radius:var(--r-card);padding:14px 16px;box-shadow:var(--sh-1);}
  .filter-label{font-size:13px;font-weight:600;color:var(--muted);display:inline-flex;align-items:center;gap:7px;}
  .filter-bar{display:flex;flex-wrap:wrap;gap:9px;}
  .filter-chip{min-height:40px;padding:0 16px;border-radius:999px;border:1px solid var(--line);background:#fff;font-size:14px;font-weight:500;color:var(--muted);transition:background .18s ease,color .18s ease,border-color .18s ease;}
  .filter-chip:hover{border-color:var(--ink);color:var(--ink);}
  .filter-chip.is-active{background:var(--ink);border-color:var(--ink);color:#FFFFFF;}

  /* 场次卡片网格 */
  .match-grid{display:grid;grid-template-columns:1fr;gap:16px;}
  @media (min-width:520px){.match-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:18px;}}
  @media (min-width:900px){.match-grid{grid-template-columns:repeat(3,minmax(0,1fr));}}
  @media (min-width:1180px){.match-grid{grid-template-columns:repeat(4,minmax(0,1fr));gap:20px;}}

  .match-card{display:flex;flex-direction:column;background:var(--surface);border:1px solid var(--line);border-radius:var(--r-card);overflow:hidden;box-shadow:var(--sh-1);transition:transform .2s ease-out,box-shadow .2s ease-out,border-color .2s ease-out;}
  .match-card:hover{transform:translateY(-2px);box-shadow:var(--sh-2);border-color:rgba(255,74,23,.20);}
  .match-thumb{position:relative;aspect-ratio:4/3;overflow:hidden;background:#EDE9E4;}
  .match-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .2s ease-out;}
  .match-card:hover .match-thumb img{transform:scale(1.04);}
  .badge{position:absolute;left:10px;top:10px;display:inline-flex;align-items:center;gap:6px;font-size:12px;font-weight:600;border-radius:var(--r-badge);padding:4px 9px;line-height:1.4;}
  .badge-live{background:var(--brand);color:#fff;}
  .badge-soon{background:rgba(255,255,255,.94);color:var(--brand-deep);border:1px solid var(--brand);}
  .badge-done{background:rgba(14,17,22,.74);color:#EDE9E4;}
  .match-body{display:flex;flex-direction:column;gap:8px;padding:14px 16px 16px;flex:1 1 auto;}
  .match-meta{display:flex;align-items:center;justify-content:space-between;font-size:12px;color:var(--muted);}
  .match-meta .proj{display:inline-flex;align-items:center;gap:6px;font-weight:600;color:var(--ink-2);}
  .match-title{font-size:16px;font-weight:700;line-height:1.45;color:var(--ink);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
  .match-desc{font-size:13px;line-height:1.7;color:var(--muted);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
  .match-foot{margin-top:auto;display:flex;align-items:center;justify-content:space-between;gap:10px;padding-top:10px;border-top:1px solid var(--line);}
  .match-time{font-size:15px;font-weight:700;color:var(--brand);}
  .match-link{display:inline-flex;align-items:center;gap:6px;font-size:13px;font-weight:600;color:var(--ink-2);min-height:36px;transition:color .18s ease;}
  .match-link:hover{color:var(--brand);}

  /* 流程 */
  .step-grid{display:grid;grid-template-columns:1fr;gap:16px;}
  @media (min-width:640px){.step-grid{grid-template-columns:repeat(2,minmax(0,1fr));}}
  @media (min-width:1024px){.step-grid{grid-template-columns:repeat(4,minmax(0,1fr));gap:20px;}}
  .step-card{background:var(--surface);border:1px solid var(--line);border-radius:var(--r-card);padding:22px;box-shadow:var(--sh-1);transition:transform .2s ease-out,box-shadow .2s ease-out,border-color .2s ease-out;}
  .step-card:hover{transform:translateY(-2px);box-shadow:var(--sh-2);border-color:rgba(255,74,23,.20);}
  .step-num{width:38px;height:38px;border-radius:10px;display:grid;place-items:center;background:rgba(255,74,23,.10);color:var(--brand-deep);font-weight:800;font-size:15px;}
  .step-card h3{margin-top:14px;font-size:18px;font-weight:600;}
  .step-card p{margin-top:8px;font-size:14px;line-height:1.8;color:var(--muted);}

  /* 深色洞察区 */
  .insight{position:relative;overflow:hidden;border-radius:var(--r-lg);background:#0E1116 url("/assets/images/backpic/back-2.png") center/cover no-repeat;color:#F5F3F0;padding:38px 22px;}
  .insight::before{content:"";position:absolute;inset:0;background:linear-gradient(120deg,rgba(14,17,22,.95) 0%,rgba(14,17,22,.86) 55%,rgba(14,17,22,.72) 100%);}
  .insight-inner{position:relative;z-index:2;}
  @media (min-width:768px){.insight{padding:52px 44px;}}
  .insight h2{color:#FFFFFF;font-size:clamp(22px,2.6vw,32px);}
  .insight .lead{margin-top:12px;font-size:15px;line-height:1.85;color:#B9B4AD;max-width:620px;}
  .insight-grid{display:grid;grid-template-columns:1fr;gap:14px;margin-top:28px;}
  @media (min-width:560px){.insight-grid{grid-template-columns:repeat(2,minmax(0,1fr));}}
  @media (min-width:1024px){.insight-grid{grid-template-columns:repeat(4,minmax(0,1fr));gap:18px;}}
  .insight-card{background:rgba(255,255,255,.05);border:1px solid rgba(255,255,255,.13);border-radius:var(--r-card);padding:20px;}
  .insight-card i{color:var(--accent);font-size:18px;}
  .insight-card strong{display:block;margin-top:12px;font-size:22px;font-weight:800;color:#FFFFFF;}
  .insight-card span{display:block;margin-top:4px;font-size:13px;color:#B9B4AD;}
  .insight-card p{margin-top:10px;font-size:13px;line-height:1.75;color:#8D8880;}

  /* 保障条 */
  .assure{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));background:var(--surface);border:1px solid var(--line);border-radius:var(--r-card);overflow:hidden;box-shadow:var(--sh-1);}
  @media (min-width:900px){.assure{grid-template-columns:repeat(4,minmax(0,1fr));}}
  .assure-item{display:flex;align-items:flex-start;gap:12px;padding:20px 18px;border-right:1px solid var(--line);border-bottom:1px solid var(--line);}
  @media (min-width:900px){
    .assure-item{border-bottom:0;}
    .assure-item:last-child{border-right:0;}
  }
  @media (max-width:899px){
    .assure-item:nth-child(2n){border-right:0;}
    .assure-item:nth-child(n+3){border-bottom:0;}
  }
  .assure-item i{color:var(--brand);font-size:20px;line-height:1.2;margin-top:2px;}
  .assure-item h3{font-size:15px;font-weight:600;}
  .assure-item p{font-size:13px;color:var(--muted);margin-top:3px;line-height:1.7;}

  /* CTA */
  .cta-bar{position:relative;overflow:hidden;display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:20px;background:var(--ink);border-radius:var(--r-lg);padding:28px 24px;}
  @media (min-width:768px){.cta-bar{padding:34px 40px;}}
  .cta-bar::after{content:"";position:absolute;right:-40px;top:-40px;width:180px;height:180px;border-radius:50%;background:radial-gradient(circle,rgba(255,74,23,.28),transparent 68%);pointer-events:none;}
  .cta-bar h2{color:#F5F3F0;font-size:clamp(20px,2.3vw,26px);position:relative;z-index:2;}
  .cta-bar p{margin-top:8px;font-size:14px;color:#B9B4AD;position:relative;z-index:2;}
  .cta-bar .btn{position:relative;z-index:2;}

  /* 页脚 */
  .site-footer{margin-top:var(--sec-y);background:var(--ink);color:#B9B4AD;}
  .footer-strip{height:6px;background:repeating-linear-gradient(45deg,var(--brand) 0 10px,#0E1116 10px 20px);opacity:.85;}
  .footer-grid{display:grid;grid-template-columns:1fr;gap:30px;padding:44px 0 30px;}
  @media (min-width:640px){.footer-grid{grid-template-columns:1fr 1fr;}}
  @media (min-width:1024px){.footer-grid{grid-template-columns:1.7fr 1fr 1fr 1fr;gap:34px;padding:52px 0 36px;}}
  .footer-brand{display:flex;align-items:center;gap:10px;}
  .footer-brand .brand-mark{background:var(--brand);color:#fff;}
  .footer-brand .brand-text{color:#F5F3F0;font-size:17px;font-weight:800;display:block;line-height:1.3;}
  .footer-brand .brand-sub{display:block;font-size:12px;color:#8D8880;}
  .footer-about{margin-top:14px;font-size:14px;line-height:1.85;color:#B9B4AD;max-width:420px;}
  .footer-title{font-size:15px;font-weight:600;color:#F5F3F0;margin-bottom:14px;}
  .footer-list li+li{margin-top:2px;}
  .footer-list a{display:inline-flex;align-items:center;min-height:38px;font-size:14px;color:#B9B4AD;transition:color .18s ease;}
  .footer-list a:hover{color:var(--accent);}
  .footer-bottom{display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:8px;border-top:1px solid rgba(255,255,255,.10);padding:16px 0 26px;font-size:13px;color:#8D8880;}

  @media (prefers-reduced-motion:reduce){
    *{transition:none !important;animation:none !important;scroll-behavior:auto !important;}
  }

/* roulang page: category2 */
:root{
    --brand:#FF4A17;
    --brand-deep:#C9350A;
    --accent:#00D8B4;
    --ink:#0E1116;
    --ink-2:#2A3038;
    --muted:#6E6A64;
    --bg:#F6F4F1;
    --surface:#FFFFFF;
    --line:#E6E1DA;
    --gold:#FFC53D;
    --r-card:14px;
    --r-btn:10px;
    --r-lg:20px;
    --r-badge:6px;
    --sh-1:0 1px 2px rgba(14,17,22,.06);
    --sh-2:0 14px 30px -18px rgba(14,17,22,.30);
    --sh-3:0 22px 46px -26px rgba(14,17,22,.36);
    --ease:cubic-bezier(.4,0,.2,1);
  }
  *{box-sizing:border-box;}
  html{scroll-behavior:smooth;}
  body{
    margin:0;
    background:var(--bg);
    color:var(--ink);
    font-family:'PingFang SC','HarmonyOS Sans SC','Microsoft YaHei',system-ui,sans-serif;
    font-size:16px;
    line-height:1.85;
    -webkit-font-smoothing:antialiased;
    text-rendering:optimizeLegibility;
  }
  img{max-width:100%;display:block;}
  a{color:inherit;text-decoration:none;}
  button,input,select,textarea{font:inherit;color:inherit;}
  ul{margin:0;padding:0;list-style:none;}
  h1,h2,h3,h4,p{margin:0;}
  .num{font-variant-numeric:tabular-nums;}

  .container{
    width:100%;
    max-width:1200px;
    margin:0 auto;
    padding-left:16px;
    padding-right:16px;
  }
  @media (min-width:768px){ .container{padding-left:24px;padding-right:24px;} }
  @media (min-width:1280px){ .container{padding-left:32px;padding-right:32px;} }

  /* ============ Header / Nav ============ */
  .site-header{
    position:sticky;
    top:0;
    z-index:60;
    background:var(--bg);
    border-bottom:1px solid var(--line);
    padding:10px 0;
  }
  .nav-panel{
    position:relative;
    background:var(--surface);
    border:1px solid var(--line);
    border-radius:var(--r-card);
    box-shadow:var(--sh-1);
    padding:8px;
    display:flex;
    align-items:center;
    justify-content:space-between;
    gap:14px;
  }
  .brand{
    display:flex;
    align-items:center;
    gap:10px;
    padding:5px 8px;
    min-height:44px;
    border-radius:var(--r-btn);
    flex:0 0 auto;
  }
  .brand-mark{
    width:34px;height:34px;
    border-radius:9px;
    background:var(--brand);
    color:#fff;
    display:grid;place-items:center;
    font-size:15px;
    box-shadow:0 6px 14px -8px rgba(255,74,23,.85);
  }
  .brand-text{font-weight:800;font-size:16px;letter-spacing:0;line-height:1.2;}
  .nav-links{
    display:flex;
    align-items:center;
    gap:4px;
    flex-wrap:wrap;
  }
  .nav-item{
    position:relative;
    display:inline-flex;
    align-items:center;
    gap:8px;
    padding:9px 13px;
    min-height:44px;
    border-radius:var(--r-btn);
    font-size:13.5px;
    font-weight:600;
    color:var(--ink-2);
    transition:background .2s var(--ease),color .2s var(--ease);
  }
  .nav-item i{font-size:14px;color:#9A948C;transition:color .2s var(--ease);}
  .nav-item:hover{background:var(--bg);color:var(--brand-deep);}
  .nav-item:hover i{color:var(--brand);}
  .nav-item:focus-visible{outline:2px solid var(--brand);outline-offset:2px;}
  .nav-item.active{background:rgba(255,74,23,.09);color:var(--brand-deep);}
  .nav-item.active i{color:var(--brand);}
  .nav-item.active::before{
    content:'';
    position:absolute;
    top:2px;left:13px;right:13px;
    height:2px;
    border-radius:2px;
    background:var(--brand);
  }
  .nav-cta{
    display:inline-flex;
    align-items:center;
    gap:8px;
    padding:11px 18px;
    min-height:44px;
    border-radius:var(--r-btn);
    background:var(--brand);
    color:#fff;
    font-size:13.5px;
    font-weight:700;
    white-space:nowrap;
    transition:background .2s var(--ease),transform .2s var(--ease),box-shadow .2s var(--ease);
    box-shadow:0 10px 20px -14px rgba(255,74,23,.9);
  }
  .nav-cta:hover{background:var(--brand-deep);transform:translateY(-1px);}
  .nav-cta:active{transform:translateY(0);}
  .nav-cta:focus-visible{outline:2px solid var(--ink);outline-offset:2px;}
  .nav-toggle{
    display:none;
    width:44px;height:44px;
    border:1px solid var(--line);
    background:var(--surface);
    border-radius:var(--r-btn);
    color:var(--ink);
    cursor:pointer;
    align-items:center;
    justify-content:center;
  }
  .nav-toggle:focus-visible{outline:2px solid var(--brand);outline-offset:2px;}

  @media (max-width:1023px){
    .nav-toggle{display:inline-flex;}
    .nav-cta{display:none;}
    .nav-links{
      display:none;
      position:absolute;
      left:0;right:0;
      top:calc(100% + 10px);
      background:var(--surface);
      border:1px solid var(--line);
      border-radius:var(--r-card);
      box-shadow:var(--sh-3);
      padding:10px;
      grid-template-columns:repeat(2,minmax(0,1fr));
      gap:6px;
    }
    .nav-links.open{display:grid;}
    .nav-item{justify-content:flex-start;font-size:14px;}
    .nav-item.active::before{top:4px;left:10px;right:auto;width:3px;height:calc(100% - 8px);}
  }
  @media (max-width:520px){
    .nav-links{grid-template-columns:1fr;}
  }

  /* ============ Breadcrumb ============ */
  .crumb{padding:16px 0 4px;}
  .crumb .crumb-inner{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--muted);font-weight:500;}
  .crumb a{transition:color .2s var(--ease);}
  .crumb a:hover{color:var(--brand);text-decoration:underline;text-underline-offset:3px;text-decoration-thickness:2px;}
  .crumb-sep{color:#C4BEB6;}

  /* ============ Buttons ============ */
  .btn{
    display:inline-flex;
    align-items:center;
    justify-content:center;
    gap:8px;
    padding:13px 24px;
    min-height:46px;
    border-radius:var(--r-btn);
    font-size:15px;
    font-weight:700;
    border:1px solid transparent;
    cursor:pointer;
    transition:background .2s var(--ease),color .2s var(--ease),border-color .2s var(--ease),transform .2s var(--ease),box-shadow .2s var(--ease);
  }
  .btn:focus-visible{outline:2px solid var(--brand);outline-offset:2px;}
  .btn-primary{background:var(--brand);color:#fff;box-shadow:0 12px 24px -16px rgba(255,74,23,.95);}
  .btn-primary:hover{background:var(--brand-deep);transform:translateY(-1px);}
  .btn-primary:active{transform:translateY(0);}
  .btn-outline{background:var(--surface);color:var(--ink);border-color:var(--line);}
  .btn-outline:hover{border-color:var(--ink);}
  .btn-ghost{background:rgba(255,255,255,.06);color:#F5F3F0;border-color:rgba(255,255,255,.34);}
  .btn-ghost:hover{border-color:var(--accent);color:var(--accent);}
  .btn-block{width:100%;}

  /* ============ Hero ============ */
  .hero{
    position:relative;
    overflow:hidden;
    background:var(--ink);
    margin-top:14px;
    border-radius:var(--r-lg);
  }
  .hero-bg{
    position:absolute;
    inset:0;
    width:100%;
    height:100%;
    object-fit:cover;
    opacity:.72;
  }
  .hero-veil{
    position:absolute;
    inset:0;
    background:linear-gradient(90deg,rgba(14,17,22,.92) 0%,rgba(14,17,22,.72) 48%,rgba(14,17,22,.38) 100%);
  }
  .hero-lines{
    position:absolute;
    inset:0;
    background-image:repeating-linear-gradient(45deg,rgba(255,255,255,.05) 0 2px,transparent 2px 9px);
    pointer-events:none;
  }
  .hero-inner{
    position:relative;
    padding:64px 0 56px;
    color:#F5F3F0;
    max-width:760px;
  }
  .hero-eyebrow{
    display:inline-flex;
    align-items:center;
    gap:8px;
    font-size:13px;
    font-weight:600;
    letter-spacing:.02em;
    color:var(--accent);
    background:rgba(0,216,180,.10);
    border:1px solid rgba(0,216,180,.28);
    border-radius:var(--r-badge);
    padding:6px 12px;
    margin-bottom:18px;
  }
  .hero-title{
    font-size:clamp(30px,4.2vw,52px);
    font-weight:800;
    line-height:1.15;
    letter-spacing:-.02em;
    color:#FFFFFF;
  }
  .hero-sub{
    margin-top:16px;
    max-width:620px;
    font-size:16px;
    line-height:1.85;
    color:#CFCAC3;
  }
  .hero-actions{
    margin-top:28px;
    display:flex;
    flex-wrap:wrap;
    gap:12px;
  }
  .hero-stats{
    margin-top:36px;
    display:grid;
    grid-template-columns:repeat(3,minmax(0,1fr));
    gap:16px;
    max-width:640px;
    padding-top:24px;
    border-top:1px solid rgba(255,255,255,.14);
  }
  .hero-stats .stat-num{
    font-size:24px;
    font-weight:800;
    color:#FFFFFF;
    line-height:1.25;
    font-variant-numeric:tabular-nums;
  }
  .hero-stats .stat-label{
    margin-top:4px;
    font-size:13px;
    color:#B9B4AD;
    font-weight:500;
  }
  @media (max-width:640px){
    .hero-inner{padding:44px 0 40px;}
    .hero-stats{grid-template-columns:1fr;gap:12px;}
    .hero-actions .btn{flex:1 1 auto;}
  }

  /* ============ Sections ============ */
  .section{padding:56px 0;}
  @media (min-width:768px){ .section{padding:80px 0;} }
  .section-head{
    display:flex;
    flex-wrap:wrap;
    align-items:flex-end;
    justify-content:space-between;
    gap:14px;
    margin-bottom:28px;
  }
  .section-title{
    font-size:clamp(22px,2.6vw,32px);
    font-weight:700;
    line-height:1.3;
    letter-spacing:-.01em;
    color:var(--ink);
  }
  .section-desc{
    margin-top:10px;
    max-width:660px;
    font-size:15px;
    color:var(--muted);
    line-height:1.85;
  }
  .section-link{
    font-size:14px;
    font-weight:600;
    color:var(--brand);
    white-space:nowrap;
  }
  .section-link:hover{text-decoration:underline;text-underline-offset:3px;text-decoration-thickness:2px;}

  /* ============ Assure bar ============ */
  .assure{
    margin-top:28px;
    display:grid;
    grid-template-columns:repeat(4,minmax(0,1fr));
    background:var(--surface);
    border:1px solid var(--line);
    border-radius:var(--r-card);
    box-shadow:var(--sh-1);
    overflow:hidden;
  }
  .assure-item{
    display:flex;
    flex-direction:column;
    align-items:center;
    justify-content:center;
    gap:8px;
    padding:22px 14px;
    text-align:center;
    border-right:1px solid var(--line);
  }
  .assure-item:last-child{border-right:0;}
  .assure-item i{font-size:20px;color:var(--brand);}
  .assure-item span{font-size:14px;font-weight:600;color:var(--ink-2);line-height:1.5;}
  @media (max-width:768px){
    .assure{grid-template-columns:repeat(2,minmax(0,1fr));}
    .assure-item:nth-child(2n){border-right:0;}
    .assure-item:nth-child(-n+2){border-bottom:1px solid var(--line);}
  }

  /* ============ Anchor layout ============ */
  .anchor-layout{
    display:grid;
    grid-template-columns:224px minmax(0,1fr);
    gap:40px;
    align-items:start;
  }
  .anchor-side{
    position:sticky;
    top:96px;
    background:var(--surface);
    border:1px solid var(--line);
    border-radius:var(--r-card);
    box-shadow:var(--sh-1);
    padding:16px;
  }
  .anchor-side .anchor-title{
    font-size:12px;
    font-weight:700;
    letter-spacing:.06em;
    color:var(--muted);
    text-transform:uppercase;
    padding:0 8px 10px;
    border-bottom:1px solid var(--line);
    margin-bottom:10px;
  }
  .anchor-link{
    display:flex;
    align-items:center;
    gap:10px;
    padding:9px 10px;
    min-height:42px;
    border-radius:8px;
    font-size:14px;
    font-weight:600;
    color:var(--ink-2);
    transition:background .2s var(--ease),color .2s var(--ease);
  }
  .anchor-link i{font-size:12px;color:#B3ACA4;transition:color .2s var(--ease);}
  .anchor-link:hover{background:var(--bg);color:var(--brand-deep);}
  .anchor-link:hover i{color:var(--brand);}
  .anchor-link.active{background:rgba(255,74,23,.09);color:var(--brand-deep);}
  .anchor-link.active i{color:var(--brand);}
  .anchor-note{
    margin-top:14px;
    padding:14px;
    border-radius:var(--r-badge);
    background:var(--bg);
    font-size:13px;
    color:var(--muted);
    line-height:1.75;
  }
  @media (max-width:1023px){
    .anchor-layout{grid-template-columns:minmax(0,1fr);gap:20px;}
    .anchor-side{position:static;display:flex;gap:8px;overflow-x:auto;padding:10px;}
    .anchor-side .anchor-title,.anchor-note{display:none;}
    .anchor-link{white-space:nowrap;background:var(--bg);}
  }

  .media-row{
    display:grid;
    grid-template-columns:minmax(0,1fr) minmax(0,1fr);
    gap:32px;
    align-items:center;
    padding:30px 0;
    border-bottom:1px dashed var(--line);
    scroll-margin-top:100px;
  }
  .media-row:first-child{padding-top:0;}
  .media-row:last-child{border-bottom:0;padding-bottom:0;}
  .media-row .media-figure{order:1;}
  .media-row .media-body{order:2;}
  .media-row.reverse .media-figure{order:2;}
  .media-row.reverse .media-body{order:1;}
  .media-figure{
    position:relative;
    border-radius:var(--r-card);
    overflow:hidden;
    border:1px solid var(--line);
    background:var(--surface);
    box-shadow:var(--sh-1);
    aspect-ratio:4/3;
  }
  .media-figure img{width:100%;height:100%;object-fit:cover;transition:transform .4s var(--ease);}
  .media-figure:hover img{transform:scale(1.04);}
  .media-body h3{
    font-size:20px;
    font-weight:700;
    color:var(--ink);
    line-height:1.4;
  }
  .media-body p{
    margin-top:12px;
    font-size:15.5px;
    color:#4A4640;
    line-height:1.9;
  }
  .chip-row{display:flex;flex-wrap:wrap;gap:8px;margin-top:16px;}
  .chip{
    display:inline-flex;
    align-items:center;
    padding:5px 11px;
    border-radius:var(--r-badge);
    background:var(--bg);
    border:1px solid var(--line);
    font-size:12.5px;
    font-weight:600;
    color:var(--ink-2);
  }
  .point-list{margin-top:16px;display:grid;gap:10px;}
  .point-list li{
    display:flex;
    gap:10px;
    font-size:14.5px;
    color:var(--ink-2);
    line-height:1.75;
  }
  .point-list li i{color:var(--accent);font-size:15px;margin-top:5px;}
  @media (max-width:768px){
    .media-row{grid-template-columns:minmax(0,1fr);gap:18px;padding:26px 0;}
    .media-row .media-figure,.media-row .media-body{order:initial;}
  }

  /* ============ Gear cards ============ */
  .gear-card{
    display:flex;
    flex-direction:column;
    background:var(--surface);
    border:1px solid var(--line);
    border-radius:var(--r-card);
    box-shadow:var(--sh-1);
    overflow:hidden;
    height:100%;
    transition:transform .2s var(--ease),box-shadow .2s var(--ease),border-color .2s var(--ease);
  }
  .gear-card:hover{
    transform:translateY(-2px);
    box-shadow:var(--sh-2);
    border-color:rgba(255,74,23,.20);
  }
  .gear-figure{position:relative;aspect-ratio:4/3;overflow:hidden;background:var(--bg);}
  .gear-figure img{width:100%;height:100%;object-fit:cover;transition:transform .3s var(--ease);}
  .gear-card:hover .gear-figure img{transform:scale(1.04);}
  .tag-badge{
    position:absolute;
    top:10px;left:10px;
    padding:4px 10px;
    border-radius:var(--r-badge);
    font-size:12px;
    font-weight:700;
    line-height:1.6;
  }
  .tag-solid{background:var(--brand);color:#fff;}
  .tag-line{background:rgba(255,255,255,.94);color:var(--brand-deep);border:1px solid rgba(255,74,23,.35);}
  .gear-body{padding:16px;display:flex;flex-direction:column;gap:8px;flex:1 1 auto;}
  .gear-title{
    font-size:15.5px;
    font-weight:700;
    color:var(--ink);
    line-height:1.5;
    display:-webkit-box;
    -webkit-line-clamp:2;
    -webkit-box-orient:vertical;
    overflow:hidden;
  }
  .gear-meta{font-size:13px;color:var(--muted);line-height:1.7;}
  .gear-foot{
    margin-top:auto;
    padding-top:12px;
    border-top:1px solid var(--line);
    display:flex;
    align-items:center;
    justify-content:space-between;
    gap:10px;
  }
  .gear-price{font-size:18px;font-weight:700;color:var(--brand);font-variant-numeric:tabular-nums;}
  .gear-price small{font-size:12px;font-weight:600;color:var(--muted);margin-left:4px;}
  .icon-btn{
    width:38px;height:38px;
    border-radius:50%;
    border:1px solid var(--line);
    background:var(--surface);
    color:var(--ink-2);
    display:grid;place-items:center;
    cursor:pointer;
    transition:background .2s var(--ease),color .2s var(--ease),border-color .2s var(--ease),transform .2s var(--ease);
  }
  .icon-btn:hover{background:var(--brand);border-color:var(--brand);color:#fff;transform:translateY(-1px);}
  .icon-btn:focus-visible{outline:2px solid var(--brand);outline-offset:2px;}

  /* ============ Review band ============ */
  .review-band{
    background:var(--ink);
    border-radius:var(--r-lg);
    padding:40px 32px;
    color:#F5F3F0;
    position:relative;
    overflow:hidden;
  }
  .review-band::after{
    content:'';
    position:absolute;
    inset:0;
    background-image:radial-gradient(rgba(255,255,255,.10) 1px,transparent 1px);
    background-size:22px 22px;
    opacity:.5;
    pointer-events:none;
  }
  .review-band > *{position:relative;z-index:1;}
  .score-row{display:grid;gap:14px;margin-top:22px;}
  .score-item{display:grid;grid-template-columns:150px minmax(0,1fr) 46px;align-items:center;gap:14px;}
  .score-item span:first-child{font-size:14px;color:#CFCAC3;}
  .score-track{height:8px;border-radius:6px;background:rgba(255,255,255,.14);overflow:hidden;}
  .score-fill{height:100%;border-radius:6px;background:var(--accent);}
  .score-val{font-size:14px;font-weight:700;color:#FFFFFF;text-align:right;font-variant-numeric:tabular-nums;}
  .quote-card{
    background:rgba(255,255,255,.06);
    border:1px solid rgba(255,255,255,.12);
    border-radius:var(--r-card);
    padding:20px;
    height:100%;
  }
  .quote-card .stars{color:var(--gold);font-size:13px;letter-spacing:2px;}
  .quote-card p{margin-top:12px;font-size:14.5px;color:#E4E0DB;line-height:1.85;}
  .quote-who{margin-top:14px;display:flex;align-items:center;gap:10px;}
  .avatar{
    width:36px;height:36px;
    border-radius:50%;
    background:rgba(255,74,23,.18);
    color:#FFB39A;
    display:grid;place-items:center;
    font-weight:700;
    font-size:14px;
  }
  .quote-who .who-name{font-size:14px;font-weight:600;color:#FFFFFF;}
  .quote-who .who-role{font-size:12.5px;color:#B9B4AD;}
  @media (max-width:768px){
    .review-band{padding:28px 20px;}
    .score-item{grid-template-columns:110px minmax(0,1fr) 42px;gap:10px;}
  }

  /* ============ FAQ ============ */
  .faq-wrap{
    background:var(--surface);
    border:1px solid var(--line);
    border-radius:var(--r-card);
    box-shadow:var(--sh-1);
    padding:8px 22px;
  }
  .faq-item{
    position:relative;
    padding-left:16px;
    border-bottom:1px solid var(--line);
  }
  .faq-item:last-child{border-bottom:0;}
  .faq-item::before{
    content:'';
    position:absolute;
    left:0;
    top:18px;
    bottom:18px;
    width:3px;
    border-radius:2px;
    background:transparent;
    transition:background .25s var(--ease);
  }
  .faq-item[open]::before{background:var(--brand);}
  .faq-item summary{
    list-style:none;
    cursor:pointer;
    display:flex;
    align-items:center;
    justify-content:space-between;
    gap:16px;
    padding:18px 0;
    min-height:56px;
    font-size:16px;
    font-weight:600;
    color:var(--ink);
    transition:color .2s var(--ease);
  }
  .faq-item summary::-webkit-details-marker{display:none;}
  .faq-item summary:hover{color:var(--brand-deep);}
  .faq-item summary:focus-visible{outline:2px solid var(--brand);outline-offset:4px;border-radius:6px;}
  .faq-item summary i{
    color:var(--muted);
    font-size:14px;
    transition:transform .25s var(--ease),color .25s var(--ease);
    flex:0 0 auto;
  }
  .faq-item[open] summary i{transform:rotate(90deg);color:var(--brand);}
  .faq-answer{
    padding:0 0 20px;
    font-size:15px;
    line-height:1.85;
    color:var(--muted);
    max-width:820px;
  }

  /* ============ Consult / CTA ============ */
  .consult-grid{
    display:grid;
    grid-template-columns:minmax(0,1fr) minmax(0,420px);
    gap:36px;
    align-items:start;
    background:var(--surface);
    border:1px solid var(--line);
    border-radius:var(--r-lg);
    box-shadow:var(--sh-1);
    padding:36px;
  }
  .consult-grid h2{font-size:clamp(22px,2.4vw,28px);font-weight:700;line-height:1.35;}
  .consult-grid .lead{margin-top:14px;font-size:15.5px;color:var(--muted);line-height:1.85;}
  .consult-list{margin-top:22px;display:grid;gap:12px;}
  .consult-list li{display:flex;gap:10px;font-size:14.5px;color:var(--ink-2);}
  .consult-list li i{color:var(--brand);margin-top:5px;font-size:14px;}
  .form-field{margin-bottom:14px;}
  .form-field label{display:block;font-size:13px;font-weight:600;color:var(--ink-2);margin-bottom:6px;}
  .form-field input,
  .form-field select,
  .form-field textarea{
    width:100%;
    padding:11px 13px;
    min-height:46px;
    border:1px solid var(--line);
    border-radius:var(--r-btn);
    background:var(--surface);
    font-size:14.5px;
    transition:border-color .2s var(--ease),box-shadow .2s var(--ease);
  }
  .form-field textarea{min-height:88px;resize:vertical;line-height:1.7;}
  .form-field input:focus,
  .form-field select:focus,
  .form-field textarea:focus{
    outline:none;
    border-color:var(--brand);
    box-shadow:0 0 0 3px rgba(255,74,23,.16);
  }
  .form-tip{margin-top:10px;font-size:12.5px;color:var(--muted);line-height:1.7;}
  .form-msg{
    display:none;
    margin-top:12px;
    padding:10px 12px;
    border-radius:var(--r-badge);
    background:rgba(0,216,180,.12);
    border:1px solid rgba(0,216,180,.4);
    color:#0A6E5D;
    font-size:13.5px;
    font-weight:600;
  }
  .form-msg.show{display:block;}
  @media (max-width:1023px){
    .consult-grid{grid-template-columns:minmax(0,1fr);padding:24px;gap:26px;}
  }

  /* ============ Footer ============ */
  .site-footer{background:var(--ink);color:#F5F3F0;margin-top:72px;}
  .footer-strip{
    height:8px;
    background-image:repeating-linear-gradient(45deg,rgba(255,74,23,.85) 0 10px,transparent 10px 22px);
    opacity:.5;
  }
  .footer-grid{
    display:grid;
    grid-template-columns:1.5fr 1fr 1fr 1fr;
    gap:36px;
    padding:54px 0 38px;
  }
  .footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:16px;}
  .footer-brand .brand-mark{width:34px;height:34px;}
  .footer-brand .brand-text{color:#FFFFFF;font-weight:800;font-size:16px;display:block;line-height:1.3;}
  .footer-brand .brand-sub{display:block;font-size:12.5px;color:#B9B4AD;letter-spacing:.02em;}
  .footer-about{font-size:14px;color:#B9B4AD;line-height:1.9;max-width:340px;}
  .footer-title{font-size:15px;font-weight:700;color:#FFFFFF;margin-bottom:14px;}
  .footer-list{display:grid;gap:10px;font-size:14px;}
  .footer-list a{color:#B9B4AD;transition:color .2s var(--ease);}
  .footer-list a:hover{color:var(--accent);}
  .footer-bottom{
    display:flex;
    flex-wrap:wrap;
    align-items:center;
    justify-content:space-between;
    gap:10px;
    padding:18px 0 28px;
    border-top:1px solid rgba(255,255,255,.10);
    font-size:13px;
    color:#B9B4AD;
  }
  @media (max-width:1023px){
    .footer-grid{grid-template-columns:1fr 1fr;gap:28px;padding:40px 0 30px;}
  }
  @media (max-width:520px){
    .footer-grid{grid-template-columns:1fr;}
  }

/* roulang page: category3 */
:root{
    --brand:#FF4A17;
    --brand-deep:#C9350A;
    --brand-soft:#FFF1EA;
    --accent:#00D8B4;
    --ink:#0E1116;
    --ink-2:#2A3038;
    --muted:#6E6A64;
    --bg:#F6F4F1;
    --surface:#FFFFFF;
    --line:#E6E1DA;
    --gold:#FFC53D;
    --radius-card:14px;
    --radius-btn:10px;
    --radius-block:20px;
    --shadow-sm:0 1px 2px rgba(14,17,22,.06);
    --shadow-lg:0 14px 30px -18px rgba(14,17,22,.30);
    --ease:cubic-bezier(.2,.7,.3,1);
  }

  *,*::before,*::after{box-sizing:border-box;}
  html{scroll-behavior:smooth;-webkit-text-size-adjust:100%;}
  body{
    margin:0;
    background:var(--bg);
    color:var(--ink);
    font-family:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
    font-size:16px;
    line-height:1.8;
    -webkit-font-smoothing:antialiased;
  }
  img{display:block;max-width:100%;}
  a{color:inherit;text-decoration:none;}
  button{font:inherit;color:inherit;background:none;border:none;}
  h1,h2,h3,h4,p,ul,ol,figure{margin:0;}
  ul,ol{padding:0;list-style:none;}
  :focus-visible{outline:2px solid var(--brand);outline-offset:2px;}
  .num{font-variant-numeric:tabular-nums;}

  .container{width:100%;max-width:1200px;margin:0 auto;padding:0 16px;}
  @media (min-width:768px){ .container{padding:0 24px;} }
  @media (min-width:1280px){ .container{padding:0 32px;} }

  .section{padding:48px 0;}
  @media (min-width:768px){ .section{padding:80px 0;} }
  .section-tight{padding-top:32px;}

  .h1{
    font-size:clamp(30px,4.2vw,52px);
    font-weight:800;
    line-height:1.15;
    letter-spacing:-.02em;
  }
  .h2{
    font-size:clamp(22px,2.6vw,32px);
    font-weight:700;
    line-height:1.3;
    letter-spacing:-.01em;
  }
  .h3{font-size:19px;font-weight:600;line-height:1.4;}
  .lead{font-size:17px;line-height:1.85;color:var(--ink-2);}
  .muted{color:var(--muted);font-size:14px;line-height:1.75;}

  .eyebrow{
    display:inline-flex;align-items:center;gap:8px;
    font-size:13px;font-weight:700;color:var(--brand);
  }
  .eyebrow::before{content:"";width:18px;height:3px;border-radius:3px;background:var(--brand);}

  .section-head{
    display:flex;flex-wrap:wrap;align-items:flex-end;justify-content:space-between;
    gap:16px;margin-bottom:28px;
  }
  .section-head p{max-width:640px;}

  .badge{
    display:inline-flex;align-items:center;gap:6px;
    padding:4px 10px;border-radius:6px;
    font-size:13px;font-weight:600;
    background:var(--brand-soft);color:var(--brand-deep);
  }
  .tag{
    display:inline-flex;align-items:center;
    padding:5px 12px;border-radius:999px;
    font-size:13px;font-weight:600;
    background:var(--surface);border:1px solid var(--line);color:var(--ink-2);
  }
  .tag-row{display:flex;flex-wrap:wrap;gap:8px;}

  /* ============ 按钮 ============ */
  .btn{
    display:inline-flex;align-items:center;justify-content:center;gap:8px;
    min-height:44px;padding:0 22px;
    border-radius:var(--radius-btn);
    font-size:15px;font-weight:600;
    border:1px solid transparent;
    cursor:pointer;
    transition:background .2s var(--ease),border-color .2s var(--ease),transform .2s var(--ease),box-shadow .2s var(--ease),color .2s var(--ease);
    white-space:nowrap;
  }
  .btn-primary{background:var(--brand);color:#fff;box-shadow:var(--shadow-sm);}
  .btn-primary:hover{background:var(--brand-deep);transform:translateY(-1px);box-shadow:var(--shadow-lg);}
  .btn-primary:active{transform:translateY(0);}
  .btn-ghost{background:var(--surface);border-color:var(--line);color:var(--ink);}
  .btn-ghost:hover{border-color:var(--ink);transform:translateY(-1px);}
  .btn-sm{min-height:40px;padding:0 16px;font-size:14px;}
  .link-more{
    display:inline-flex;align-items:center;gap:6px;
    font-size:14px;font-weight:600;color:var(--ink-2);
    transition:color .2s var(--ease);
  }
  .link-more:hover{color:var(--brand);}
  .link-more:hover span{text-decoration:underline;text-underline-offset:3px;text-decoration-thickness:2px;}

  /* ============ 顶部导航 ============ */
  .site-header{
    position:sticky;top:0;z-index:80;
    background:var(--bg);
    padding:10px 0 12px;
    border-bottom:1px solid var(--line);
  }
  .nav-panel{
    position:relative;
    display:flex;align-items:center;justify-content:space-between;gap:16px;
    background:var(--surface);
    border:1px solid var(--line);
    border-radius:var(--radius-card);
    box-shadow:var(--shadow-sm);
    padding:10px 14px;
  }
  .brand{display:flex;align-items:center;gap:10px;min-height:44px;flex-shrink:0;}
  .brand-mark{
    width:34px;height:34px;border-radius:10px;
    display:inline-flex;align-items:center;justify-content:center;
    background:var(--brand);color:#fff;font-size:16px;
    box-shadow:0 8px 18px -10px rgba(255,74,23,.75);
  }
  .brand-text{font-size:17px;font-weight:800;letter-spacing:-.01em;color:var(--ink);}

  .nav-links{display:flex;align-items:center;gap:4px;}
  .nav-item{
    position:relative;
    display:inline-flex;align-items:center;gap:8px;
    min-height:44px;padding:0 14px;border-radius:10px;
    font-size:14px;font-weight:600;color:var(--ink-2);
    transition:background .2s var(--ease),color .2s var(--ease);
  }
  .nav-item i{font-size:15px;color:var(--muted);transition:color .2s var(--ease);}
  .nav-item:hover{background:var(--bg);color:var(--ink);}
  .nav-item:hover i{color:var(--brand);}
  .nav-item.active{background:var(--brand-soft);color:var(--ink);}
  .nav-item.active i{color:var(--brand);}
  .nav-item.active::after{
    content:"";position:absolute;top:-9px;left:12px;right:12px;height:2px;
    background:var(--brand);border-radius:2px;
  }
  .nav-actions{display:flex;align-items:center;gap:10px;}
  .nav-toggle{
    display:none;align-items:center;justify-content:center;
    width:44px;height:44px;border-radius:10px;
    border:1px solid var(--line);background:var(--surface);color:var(--ink);
    cursor:pointer;
  }
  .nav-toggle:hover{border-color:var(--ink);}

  @media (max-width:1023px){
    .nav-toggle{display:inline-flex;}
    .nav-actions .btn-primary{display:none;}
    .nav-links{
      display:none;
      position:absolute;left:-1px;right:-1px;top:calc(100% + 10px);
      flex-direction:column;align-items:stretch;gap:4px;
      background:var(--surface);
      border:1px solid var(--line);
      border-radius:var(--radius-card);
      box-shadow:var(--shadow-lg);
      padding:12px;
    }
    .nav-links.open{display:flex;}
    .nav-item{justify-content:flex-start;width:100%;}
    .nav-item.active::after{top:8px;bottom:8px;left:0;right:auto;width:3px;height:auto;border-radius:3px;}
  }
  @media (min-width:1024px){
    .nav-panel{padding:10px 16px;}
  }

  /* ============ 面包屑 ============ */
  .breadcrumb{
    display:flex;flex-wrap:wrap;align-items:center;gap:8px;
    font-size:13px;color:var(--muted);margin-bottom:20px;
  }
  .breadcrumb a{transition:color .2s var(--ease);}
  .breadcrumb a:hover{color:var(--brand);}
  .breadcrumb .sep{color:var(--line);}
  .breadcrumb .current{color:var(--ink-2);font-weight:600;}

  /* ============ Hero ============ */
  .hero{position:relative;overflow:hidden;padding:28px 0 40px;}
  .hero::before{
    content:"";position:absolute;inset:0;
    background-image:repeating-linear-gradient(45deg,rgba(255,74,23,.05) 0 2px,transparent 2px 14px);
    mask-image:linear-gradient(180deg,#000 0%,transparent 78%);
    -webkit-mask-image:linear-gradient(180deg,#000 0%,transparent 78%);
    pointer-events:none;
  }
  .hero-grid{
    position:relative;
    display:grid;grid-template-columns:1fr;gap:32px;align-items:center;
  }
  @media (min-width:1024px){
    .hero-grid{grid-template-columns:1.16fr .84fr;gap:56px;}
  }
  .hero-title{margin:16px 0 18px;}
  .hero-sub{max-width:600px;margin-bottom:26px;}
  .hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-bottom:32px;}
  .hero-stats{
    display:grid;grid-template-columns:repeat(3,minmax(0,1fr));
    gap:16px;padding-top:22px;border-top:1px solid var(--line);
  }
  .stat-num{font-size:24px;font-weight:800;line-height:1.2;color:var(--ink);}
  .stat-num em{font-style:normal;font-size:14px;font-weight:600;color:var(--muted);margin-left:2px;}
  .stat-label{font-size:13px;color:var(--muted);margin-top:2px;}

  .hero-visual{position:relative;}
  .hero-figure{
    position:relative;border-radius:var(--radius-block);overflow:hidden;
    aspect-ratio:4/3;box-shadow:var(--shadow-lg);
    border:1px solid var(--line);background:var(--surface);
  }
  .hero-figure img{width:100%;height:100%;object-fit:cover;}
  .hero-thumb{
    position:absolute;right:-8px;bottom:-18px;width:34%;min-width:118px;
    aspect-ratio:4/3;border-radius:var(--radius-card);overflow:hidden;
    border:4px solid var(--bg);background:var(--surface);box-shadow:var(--shadow-lg);
  }
  .hero-thumb img{width:100%;height:100%;object-fit:cover;}
  .hero-slash{
    position:absolute;left:-14px;top:34px;width:6px;height:86px;border-radius:6px;
    background:linear-gradient(180deg,var(--brand),var(--brand-deep));
    transform:rotate(8deg);
  }

  /* ============ 卡片通用 ============ */
  .card{
    background:var(--surface);
    border:1px solid var(--line);
    border-radius:var(--radius-card);
    box-shadow:var(--shadow-sm);
    transition:transform .2s var(--ease),box-shadow .2s var(--ease),border-color .2s var(--ease);
  }
  .card:hover{transform:translateY(-2px);box-shadow:var(--shadow-lg);border-color:rgba(255,74,23,.2);}
  .card-pad{padding:22px;}

  /* ============ 规格表 ============ */
  .table-wrap{
    background:var(--surface);
    border:1px solid var(--line);
    border-radius:var(--radius-block);
    box-shadow:var(--shadow-sm);
    overflow:hidden;
  }
  .table-scroll{overflow-x:auto;}
  .spec-table{width:100%;min-width:760px;border-collapse:collapse;font-size:15px;}
  .spec-table caption{
    text-align:left;padding:20px 22px 4px;
    font-size:13px;font-weight:600;color:var(--muted);
  }
  .spec-table thead th{
    background:#FBF8F5;
    text-align:left;
    font-size:13px;font-weight:600;color:var(--muted);
    padding:14px 22px;
    border-bottom:1px solid var(--line);
    white-space:nowrap;
  }
  .spec-table tbody td{
    padding:16px 22px;
    border-bottom:1px solid var(--line);
    color:var(--ink-2);
    vertical-align:top;
  }
  .spec-table tbody tr:last-child td{border-bottom:none;}
  .spec-table tbody tr{transition:background .2s var(--ease);}
  .spec-table tbody tr:hover{background:#FFF8F4;}
  .spec-table td:first-child{font-weight:600;color:var(--ink);}
  .table-note{
    display:flex;align-items:flex-start;gap:10px;
    padding:16px 22px;background:#FBF8F5;
    border-top:1px solid var(--line);
    font-size:13px;color:var(--muted);
  }
  .table-note i{color:var(--brand);margin-top:3px;}

  /* ============ 分级卡 ============ */
  .level-grid{display:grid;grid-template-columns:1fr;gap:20px;}
  @media (min-width:640px){ .level-grid{grid-template-columns:repeat(2,minmax(0,1fr));} }
  @media (min-width:1024px){ .level-grid{grid-template-columns:repeat(4,minmax(0,1fr));} }
  .level-card{position:relative;padding:24px 22px;display:flex;flex-direction:column;gap:12px;}
  .level-card::before{
    content:"";position:absolute;top:0;left:22px;width:34px;height:3px;
    background:var(--brand);border-radius:0 0 3px 3px;
  }
  .level-code{font-size:13px;font-weight:700;color:var(--brand);letter-spacing:.02em;}
  .bar{height:6px;border-radius:6px;background:#EFEBE5;overflow:hidden;}
  .bar-fill{height:100%;border-radius:6px;background:linear-gradient(90deg,var(--brand),var(--brand-deep));}

  /* ============ 流程时间线 ============ */
  .timeline{display:grid;grid-template-columns:1fr;gap:0;}
  @media (min-width:768px){ .timeline{grid-template-columns:repeat(5,minmax(0,1fr));gap:0;} }
  .step{
    position:relative;
    padding:0 0 28px 34px;
    border-left:2px solid var(--line);
  }
  .step:last-child{border-left-color:transparent;padding-bottom:0;}
  .step::before{
    content:attr(data-step);
    position:absolute;left:-15px;top:0;
    width:28px;height:28px;border-radius:50%;
    display:flex;align-items:center;justify-content:center;
    background:var(--surface);border:2px solid var(--brand);
    color:var(--brand);font-size:12px;font-weight:800;
    font-variant-numeric:tabular-nums;
  }
  .step h3{font-size:17px;font-weight:600;margin-bottom:6px;}
  .step p{font-size:14px;color:var(--muted);line-height:1.8;}
  @media (min-width:768px){
    .step{padding:34px 22px 0 0;border-left:none;border-top:2px solid var(--line);}
    .step:last-child{border-top-color:var(--line);}
    .step::before{left:0;top:-15px;}
  }

  /* ============ 深色人群板块 ============ */
  .block-dark{
    background:var(--ink);color:#F5F3F0;
    border-radius:var(--radius-block);
    padding:40px 24px;
    position:relative;overflow:hidden;
  }
  .block-dark::after{
    content:"";position:absolute;inset:0;
    background-image:repeating-linear-gradient(45deg,rgba(255,255,255,.045) 0 2px,transparent 2px 16px);
    pointer-events:none;
  }
  @media (min-width:768px){ .block-dark{padding:56px 40px;} }
  .block-dark .h2{color:#F5F3F0;position:relative;z-index:1;}
  .block-dark .eyebrow{color:var(--accent);}
  .block-dark .eyebrow::before{background:var(--accent);}
  .block-dark .muted{color:#B9B4AD;}

  .audience-list{display:grid;gap:24px;position:relative;z-index:1;}
  .audience{
    display:grid;grid-template-columns:1fr;gap:20px;
    padding:20px;border-radius:var(--radius-card);
    background:rgba(255,255,255,.045);
    border:1px solid rgba(255,255,255,.10);
  }
  @media (min-width:768px){
    .audience{grid-template-columns:220px 1fr;gap:28px;align-items:center;padding:22px;}
    .audience.reverse .audience-media{order:2;}
  }
  .audience-media{
    aspect-ratio:16/10;border-radius:10px;overflow:hidden;background:#1A1F26;
  }
  .audience-media img{width:100%;height:100%;object-fit:cover;}
  .audience h3{color:#F5F3F0;font-size:18px;font-weight:600;margin-bottom:8px;}
  .audience p{font-size:15px;line-height:1.8;color:#B9B4AD;}
  .audience .tag-row{margin-top:14px;}
  .audience .tag{background:transparent;border-color:rgba(255,255,255,.18);color:#E5E1DB;}

  /* ============ 保障条 ============ */
  .guarantee{
    display:grid;grid-template-columns:repeat(2,minmax(0,1fr));
    background:var(--surface);border:1px solid var(--line);
    border-radius:var(--radius-block);overflow:hidden;box-shadow:var(--shadow-sm);
  }
  @media (min-width:768px){ .guarantee{grid-template-columns:repeat(4,minmax(0,1fr));} }
  .guarantee-item{
    display:flex;flex-direction:column;align-items:center;justify-content:center;gap:10px;
    padding:24px 16px;text-align:center;
    border-right:1px solid var(--line);border-bottom:1px solid var(--line);
  }
  .guarantee-item i{font-size:20px;color:var(--brand);}
  .guarantee-item span{font-size:14px;font-weight:600;color:var(--ink-2);}

  /* ============ 引用块 ============ */
  .quote{
    border-left:3px solid var(--brand);
    background:var(--surface);
    border-radius:0 var(--radius-card) var(--radius-card) 0;
    padding:24px 26px;
    box-shadow:var(--shadow-sm);
  }
  .quote p{font-size:17px;line-height:1.9;color:var(--ink-2);}
  .quote footer{margin-top:14px;font-size:13px;color:var(--muted);font-weight:600;}
  .stars{color:var(--gold);font-size:14px;letter-spacing:2px;margin-bottom:10px;}

  /* ============ FAQ ============ */
  .faq{
    background:var(--surface);
    border:1px solid var(--line);
    border-radius:var(--radius-block);
    padding:8px 24px;
    box-shadow:var(--shadow-sm);
  }
  .faq-item{border-bottom:1px solid var(--line);position:relative;transition:padding .2s var(--ease);}
  .faq-item:last-child{border-bottom:none;}
  .faq-item summary{
    display:flex;align-items:center;justify-content:space-between;gap:18px;
    padding:18px 0;font-size:16px;font-weight:600;color:var(--ink);
    cursor:pointer;list-style:none;
  }
  .faq-item summary::-webkit-details-marker{display:none;}
  .faq-item summary i{color:var(--muted);font-size:14px;transition:transform .2s var(--ease),color .2s var(--ease);}
  .faq-item[open]{padding-left:16px;}
  .faq-item[open]::before{
    content:"";position:absolute;left:0;top:16px;bottom:16px;width:3px;
    background:var(--brand);border-radius:3px;
  }
  .faq-item[open] summary{color:var(--brand-deep);}
  .faq-item[open] summary i{transform:rotate(90deg);color:var(--brand);}
  .faq-a{padding:0 0 20px;font-size:15px;line-height:1.8;color:var(--muted);max-width:840px;}

  /* ============ CTA 条 ============ */
  .cta-bar{
    background:var(--ink);color:#F5F3F0;
    border-radius:var(--radius-block);
    padding:28px 24px;
    display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:20px;
    position:relative;overflow:hidden;
  }
  .cta-bar::after{
    content:"";position:absolute;right:-40px;top:-40px;width:200px;height:200px;
    background-image:repeating-linear-gradient(45deg,rgba(255,74,23,.22) 0 3px,transparent 3px 12px);
    pointer-events:none;
  }
  .cta-bar h2{font-size:clamp(20px,2.2vw,26px);font-weight:700;line-height:1.4;position:relative;z-index:1;}
  .cta-bar .cta-actions{position:relative;z-index:1;display:flex;flex-wrap:wrap;gap:12px;}
  .cta-bar .btn-ghost{background:transparent;border-color:rgba(255,255,255,.28);color:#F5F3F0;}
  .cta-bar .btn-ghost:hover{border-color:var(--accent);color:var(--accent);}

  /* ============ 页脚 ============ */
  .site-footer{background:var(--ink);color:#B9B4AD;margin-top:48px;}
  .footer-strip{
    height:6px;
    background-image:repeating-linear-gradient(45deg,var(--brand) 0 6px,transparent 6px 14px);
    opacity:.85;
  }
  .footer-grid{
    display:grid;grid-template-columns:1fr;gap:32px;
    padding:48px 16px 32px;
  }
  @media (min-width:768px){ .footer-grid{grid-template-columns:1.5fr 1fr 1fr 1fr;padding:56px 24px 36px;} }
  @media (min-width:1280px){ .footer-grid{padding:56px 32px 36px;} }
  .footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:16px;}
  .footer-brand .brand-mark{box-shadow:none;}
  .brand-text-on-dark{display:block;font-size:17px;font-weight:800;color:#F5F3F0;}
  .brand-sub{display:block;font-size:13px;color:#8E8983;}
  .footer-about{font-size:14px;line-height:1.9;color:#B9B4AD;max-width:360px;}
  .footer-title{font-size:14px;font-weight:700;color:#F5F3F0;margin-bottom:14px;}
  .footer-list li{margin-bottom:10px;}
  .footer-list a{font-size:14px;color:#B9B4AD;transition:color .2s var(--ease);}
  .footer-list a:hover{color:var(--accent);}
  .footer-bottom{
    display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:10px;
    padding:18px 16px 26px;
    border-top:1px solid rgba(255,255,255,.10);
    font-size:13px;color:#8E8983;
  }
  @media (min-width:768px){ .footer-bottom{padding:18px 24px 26px;} }
  @media (min-width:1280px){ .footer-bottom{padding:18px 32px 26px;} }

/* roulang page: category4 */
:root{
  --brand:#FF4A17;
  --brand-deep:#C9350A;
  --accent:#00D8B4;
  --ink:#0E1116;
  --ink-2:#2A3038;
  --muted:#6E6A64;
  --bg:#F6F4F1;
  --surface:#FFFFFF;
  --line:#E6E1DA;
  --gold:#FFC53D;
  --r-card:14px;
  --r-btn:10px;
  --r-block:20px;
  --sh-1:0 1px 2px rgba(14,17,22,.06);
  --sh-2:0 14px 30px -18px rgba(14,17,22,.30);
  --sec-y:48px;
}
@media (min-width:1024px){ :root{ --sec-y:80px; } }

*,*::before,*::after{ box-sizing:border-box; }
html{ -webkit-text-size-adjust:100%; scroll-behavior:smooth; }
body.site-body{
  margin:0;
  background:var(--bg);
  color:var(--ink);
  font-family:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:16px;
  line-height:1.8;
  font-variant-numeric:tabular-nums;
  -webkit-font-smoothing:antialiased;
}
img{ max-width:100%; display:block; }
a{ color:inherit; text-decoration:none; }
button,input,select,textarea{ font-family:inherit; font-size:inherit; }
h1,h2,h3,p,ul,ol,figure,blockquote{ margin:0; }
ul,ol{ padding:0; list-style:none; }
:focus-visible{ outline:2px solid var(--brand); outline-offset:2px; }

.container{ width:100%; max-width:1200px; margin:0 auto; padding:0 16px; }
@media (min-width:768px){ .container{ padding:0 24px; } }
@media (min-width:1280px){ .container{ padding:0 32px; } }

/* ============ 头部与卡片化导航 ============ */
.site-header{
  position:sticky; top:0; z-index:60;
  background:var(--bg);
  border-bottom:1px solid var(--line);
  padding:12px 0;
}
.header-inner{
  display:flex; align-items:center; justify-content:space-between; gap:16px;
  padding-bottom:10px;
}
.brand{ display:flex; align-items:center; gap:10px; }
.brand-mark{
  width:38px; height:38px; border-radius:11px;
  background:var(--brand); color:#fff;
  display:grid; place-items:center; font-size:16px;
  box-shadow:0 8px 18px -12px rgba(255,74,23,.95);
  flex:0 0 auto;
}
.brand-text{ display:block; font-size:17px; font-weight:800; line-height:1.25; letter-spacing:-.01em; color:var(--ink); }
.brand-sub{ display:block; font-size:12px; font-weight:500; color:var(--muted); line-height:1.4; }

.nav-toggle{
  display:none; align-items:center; gap:8px;
  min-height:44px; padding:0 14px;
  background:var(--surface); border:1px solid var(--line); border-radius:var(--r-btn);
  color:var(--ink-2); font-size:14px; font-weight:600; cursor:pointer;
  transition:border-color .2s ease-out,color .2s ease-out;
}
.nav-toggle:hover{ border-color:var(--ink); color:var(--ink); }

.nav-panel{
  display:flex; align-items:center; justify-content:space-between; gap:14px;
  background:var(--surface); border:1px solid var(--line); border-radius:var(--r-card);
  box-shadow:var(--sh-1);
  padding:8px 10px;
}
.nav-links{ display:flex; align-items:center; gap:4px; flex-wrap:wrap; }
.nav-item{
  position:relative;
  display:inline-flex; align-items:center; gap:8px;
  min-height:44px; padding:0 14px; border-radius:10px;
  font-size:14px; font-weight:600; color:var(--ink-2);
  transition:background .2s ease-out, color .2s ease-out;
}
.nav-item i{ font-size:14px; color:var(--muted); transition:color .2s ease-out; }
.nav-item:hover{ background:var(--bg); color:var(--brand-deep); }
.nav-item:hover i{ color:var(--brand); }
.nav-item.active{ color:var(--brand-deep); background:rgba(255,74,23,.07); }
.nav-item.active i{ color:var(--brand); }
.nav-item.active::after{
  content:""; position:absolute; left:14px; right:14px; top:2px; height:2px;
  border-radius:2px; background:var(--brand);
}
.nav-cta{ display:flex; align-items:center; gap:10px; }

/* ============ 按钮 ============ */
.btn{
  display:inline-flex; align-items:center; justify-content:center; gap:8px;
  min-height:44px; padding:0 20px;
  border:1px solid transparent; border-radius:var(--r-btn);
  font-size:15px; font-weight:700; cursor:pointer;
  transition:transform .2s ease-out, background .2s ease-out, border-color .2s ease-out, box-shadow .2s ease-out, color .2s ease-out;
}
.btn-primary{ background:var(--brand); color:#fff; box-shadow:0 10px 22px -14px rgba(255,74,23,1); }
.btn-primary:hover{ background:var(--brand-deep); transform:translateY(-1px); }
.btn-primary:active{ transform:translateY(0); }
.btn-ghost{ background:var(--surface); color:var(--ink); border-color:var(--line); }
.btn-ghost:hover{ border-color:var(--ink); transform:translateY(-1px); }
.btn-light{ background:#fff; color:var(--ink); }
.btn-light:hover{ color:var(--brand-deep); transform:translateY(-1px); }
.btn-sm{ min-height:40px; padding:0 14px; font-size:13.5px; }
.text-link{
  display:inline-flex; align-items:center; gap:6px;
  font-size:14px; font-weight:700; color:var(--brand-deep);
}
.text-link:hover span{ text-decoration:underline; text-underline-offset:3px; text-decoration-thickness:2px; }

/* ============ 面包屑 ============ */
.breadcrumb{ display:flex; flex-wrap:wrap; align-items:center; gap:8px; font-size:13px; color:var(--muted); font-weight:500; }
.breadcrumb a{ color:var(--muted); transition:color .2s ease-out; }
.breadcrumb a:hover{ color:var(--brand); }
.breadcrumb .sep{ color:#C6C0B8; }
.breadcrumb .current{ color:var(--ink-2); font-weight:600; }

/* ============ Hero ============ */
.hero{ position:relative; overflow:hidden; padding:28px 0 var(--sec-y); }
.hero::before{
  content:""; position:absolute; inset:0 0 auto 0; height:320px;
  background-image:repeating-linear-gradient(45deg, rgba(255,74,23,.055) 0 2px, transparent 2px 12px);
  pointer-events:none;
}
.hero .container{ position:relative; z-index:1; }
.hero-grid{ display:grid; gap:32px; align-items:center; margin-top:20px; }
@media (min-width:1024px){ .hero-grid{ grid-template-columns:58% 42%; gap:48px; } }

.eyebrow{
  display:inline-flex; align-items:center; gap:6px;
  padding:5px 11px; border-radius:6px;
  background:rgba(255,74,23,.10); color:var(--brand-deep);
  font-size:12px; font-weight:700; letter-spacing:.02em;
}
.h1{
  font-size:clamp(28px,3.8vw,46px);
  font-weight:800; line-height:1.15; letter-spacing:-.02em;
  margin:14px 0 0;
}
.hero-sub{
  margin-top:16px; max-width:620px;
  font-size:16px; line-height:1.85; color:var(--ink-2);
}
.hero-actions{ display:flex; flex-wrap:wrap; gap:12px; margin-top:26px; }
.stat-row{
  display:grid; grid-template-columns:repeat(3,minmax(0,1fr)); gap:16px;
  margin-top:32px; padding-top:24px; border-top:1px solid var(--line);
}
.stat-num{ display:block; font-size:24px; font-weight:800; line-height:1.2; color:var(--ink); letter-spacing:-.01em; }
.stat-label{ display:block; margin-top:4px; font-size:13px; font-weight:500; color:var(--muted); }

.hero-media{ position:relative; padding-bottom:26px; }
.hero-media > img:first-child{
  width:100%; aspect-ratio:4/3; object-fit:cover;
  border-radius:var(--r-block); box-shadow:var(--sh-2);
}
.hero-media-sub{
  position:absolute; left:0; bottom:0; width:38%;
  aspect-ratio:4/3; object-fit:cover;
  border-radius:var(--r-card); border:4px solid var(--surface);
  box-shadow:var(--sh-2);
}
.hero-media::after{
  content:""; position:absolute; right:-14px; top:22px; width:6px; height:96px;
  background:var(--brand); border-radius:6px; transform:rotate(12deg);
  opacity:.9;
}

/* ============ 板块通用 ============ */
.section{ padding:var(--sec-y) 0; }
.section-tight{ padding:calc(var(--sec-y) * .72) 0; }
.section-head{
  display:flex; flex-wrap:wrap; align-items:flex-end; justify-content:space-between;
  gap:14px; margin-bottom:28px;
}
.h2{ font-size:clamp(22px,2.6vw,32px); font-weight:700; line-height:1.3; letter-spacing:-.01em; }
.section-desc{ margin-top:10px; max-width:720px; font-size:15.5px; color:var(--muted); }
.on-dark .section-desc{ color:#B9B4AD; }

/* ============ 权益对照卡 ============ */
.plan-grid{ display:grid; gap:20px; grid-template-columns:1fr; }
@media (min-width:768px){ .plan-grid{ grid-template-columns:repeat(2,minmax(0,1fr)); } }
@media (min-width:1024px){ .plan-grid{ grid-template-columns:repeat(3,minmax(0,1fr)); } }
.plan-card{
  display:flex; flex-direction:column; gap:16px;
  background:var(--surface); border:1px solid var(--line); border-radius:var(--r-block);
  padding:24px; box-shadow:var(--sh-1);
  transition:transform .2s ease-out, box-shadow .2s ease-out, border-color .2s ease-out;
}
.plan-card:hover{ transform:translateY(-2px); box-shadow:var(--sh-2); border-color:rgba(255,74,23,.25); }
.plan-card.is-featured{ border-color:rgba(255,74,23,.45); }
.plan-tag{
  align-self:flex-start;
  padding:4px 10px; border-radius:6px;
  background:rgba(255,74,23,.10); color:var(--brand-deep);
  font-size:12px; font-weight:700;
}
.plan-tag.line{ background:transparent; border:1px solid var(--line); color:var(--muted); }
.plan-title{ font-size:19px; font-weight:700; line-height:1.35; }
.plan-note{ font-size:14px; color:var(--muted); line-height:1.75; }
.plan-list{ display:flex; flex-direction:column; gap:10px; margin-top:2px; }
.plan-list li{ display:flex; gap:10px; font-size:14.5px; color:var(--ink-2); line-height:1.7; }
.plan-list i{ color:var(--brand); font-size:13px; margin-top:6px; flex:0 0 auto; }
.plan-foot{ margin-top:auto; padding-top:18px; border-top:1px solid var(--line); display:flex; align-items:center; justify-content:space-between; gap:12px; }
.plan-fit{ font-size:13px; color:var(--muted); font-weight:600; }

/* ============ 长文分段 ============ */
.read-block{
  background:var(--surface); border:1px solid var(--line); border-radius:var(--r-block);
  padding:26px 20px; box-shadow:var(--sh-1);
}
@media (min-width:768px){ .read-block{ padding:40px 44px; } }
.read-inner{ max-width:800px; margin:0 auto; }
.prose h2{
  position:relative; padding-left:14px; margin:36px 0 16px;
  font-size:clamp(20px,2.2vw,26px); font-weight:700; line-height:1.35;
}
.prose h2::before{
  content:""; position:absolute; left:0; top:.22em; bottom:.22em; width:3px;
  background:var(--brand); border-radius:2px;
}
.prose h2:first-child{ margin-top:0; }
.prose h3{ margin:26px 0 10px; font-size:18px; font-weight:600; line-height:1.45; color:var(--ink); }
.prose p{ margin-bottom:1.05em; font-size:16.5px; line-height:1.9; color:var(--ink-2); }
.prose p:last-child{ margin-bottom:0; }
.prose blockquote{
  margin:20px 0;
  padding:14px 18px;
  background:#FBF5F1;
  border-left:3px solid var(--brand);
  border-radius:0 12px 12px 0;
  font-size:15px; line-height:1.85; color:var(--ink-2);
}
.prose .figure-note{ margin-top:10px; font-size:13px; color:var(--muted); text-align:center; }
.prose figure{ margin:24px 0; }
.prose figure img{ width:100%; aspect-ratio:16/9; object-fit:cover; border-radius:var(--r-card); }

/* ============ 时间线 ============ */
.timeline{ display:grid; gap:18px; grid-template-columns:1fr; }
@media (min-width:768px){ .timeline{ grid-template-columns:repeat(2,minmax(0,1fr)); } }
@media (min-width:1024px){ .timeline{ grid-template-columns:repeat(5,minmax(0,1fr)); gap:16px; } }
.tl-item{
  position:relative;
  background:var(--surface); border:1px solid var(--line); border-radius:var(--r-card);
  padding:20px 18px; box-shadow:var(--sh-1);
  transition:transform .2s ease-out, box-shadow .2s ease-out, border-color .2s ease-out;
}
.tl-item:hover{ transform:translateY(-2px); box-shadow:var(--sh-2); border-color:rgba(255,74,23,.25); }
.tl-num{
  display:inline-flex; align-items:center; justify-content:center;
  width:30px; height:30px; border-radius:9px;
  background:var(--ink); color:#fff; font-size:13px; font-weight:800;
  margin-bottom:12px;
}
.tl-item.is-first .tl-num{ background:var(--brand); }
.tl-title{ font-size:16px; font-weight:700; line-height:1.4; }
.tl-text{ margin-top:8px; font-size:14px; line-height:1.75; color:var(--muted); }
@media (min-width:1024px){
  .tl-item::after{
    content:""; position:absolute; top:34px; right:-10px; width:12px; height:2px;
    background:var(--line);
  }
  .tl-item:last-child::after{ display:none; }
}

/* ============ 深色区块 ============ */
.dark-block{
  position:relative; overflow:hidden;
  background:var(--ink); color:#F5F3F0;
  border-radius:var(--r-block);
  padding:32px 22px;
}
@media (min-width:768px){ .dark-block{ padding:44px 40px; } }
.dark-block::before{
  content:""; position:absolute; top:0; left:0; right:0; height:8px;
  background-image:repeating-linear-gradient(45deg, rgba(255,74,23,.85) 0 8px, transparent 8px 20px);
}
.guard-grid{ display:grid; gap:20px; grid-template-columns:repeat(2,minmax(0,1fr)); margin-top:28px; }
@media (min-width:1024px){ .guard-grid{ grid-template-columns:repeat(4,minmax(0,1fr)); } }
.guard-item{ display:flex; flex-direction:column; gap:8px; }
.guard-item i{ font-size:19px; color:var(--accent); }
.guard-title{ font-size:15px; font-weight:700; color:#F5F3F0; }
.guard-text{ font-size:13.5px; line-height:1.75; color:#B9B4AD; }

/* ============ FAQ ============ */
.faq-list{
  background:var(--surface); border:1px solid var(--line); border-radius:var(--r-block);
  overflow:hidden; box-shadow:var(--sh-1);
}
.faq-list details{ border-bottom:1px solid var(--line); }
.faq-list details:last-child{ border-bottom:0; }
.faq-list summary{
  display:flex; align-items:center; justify-content:space-between; gap:14px;
  min-height:44px; padding:17px 20px; cursor:pointer;
  font-size:16px; font-weight:600; color:var(--ink);
  list-style:none;
  transition:background .2s ease-out, color .2s ease-out, box-shadow .2s ease-out;
}
.faq-list summary::-webkit-details-marker{ display:none; }
.faq-list summary:hover{ background:var(--bg); color:var(--brand-deep); }
.faq-icon{ font-size:12px; color:var(--muted); transition:transform .2s ease-out, color .2s ease-out; }
.faq-list details[open] summary{ box-shadow:inset 3px 0 0 var(--brand); }
.faq-list details[open] .faq-icon{ transform:rotate(90deg); color:var(--brand); }
.faq-answer{ padding:0 20px 20px 20px; font-size:15px; line-height:1.85; color:var(--muted); }

/* ============ CTA 与表单 ============ */
.cta-block{
  background:var(--ink); color:#F5F3F0; border-radius:var(--r-block);
  padding:30px 22px; display:grid; gap:28px;
}
@media (min-width:768px){ .cta-block{ padding:40px 40px; } }
@media (min-width:1024px){ .cta-block{ grid-template-columns:minmax(0,1fr) minmax(0,1fr); align-items:start; gap:48px; } }
.cta-title{ font-size:clamp(22px,2.4vw,30px); font-weight:700; line-height:1.3; color:#fff; }
.cta-text{ margin-top:14px; font-size:15.5px; line-height:1.85; color:#B9B4AD; }
.cta-points{ display:flex; flex-direction:column; gap:12px; margin-top:24px; }
.cta-points li{ display:flex; gap:10px; font-size:14.5px; color:#F5F3F0; }
.cta-points i{ color:var(--accent); font-size:13px; margin-top:6px; }
.join-form{ display:grid; gap:16px; }
.form-row{ display:grid; gap:16px; }
@media (min-width:640px){ .form-row.two{ grid-template-columns:1fr 1fr; } }
.field{ display:flex; flex-direction:column; gap:6px; }
.field label{ font-size:13px; font-weight:600; color:#B9B4AD; }
.field input,.field select,.field textarea{
  width:100%; min-height:44px;
  padding:10px 12px;
  background:rgba(255,255,255,.06);
  border:1px solid rgba(255,255,255,.18);
  border-radius:var(--r-btn);
  color:#F5F3F0; font-size:15px;
  transition:border-color .2s ease-out, box-shadow .2s ease-out;
}
.field textarea{ min-height:96px; resize:vertical; }
.field input::placeholder,.field textarea::placeholder{ color:#8C877F; }
.field select option{ color:var(--ink); }
.field input:focus,.field select:focus,.field textarea:focus{
  border-color:var(--brand);
  box-shadow:0 0 0 2px rgba(255,74,23,.35);
  outline:none;
}
.form-msg{
  margin-top:4px; padding:10px 12px; border-radius:var(--r-btn);
  background:rgba(0,216,180,.12); border:1px solid rgba(0,216,180,.35);
  color:#7CF0DA; font-size:14px;
}
.form-hint{ font-size:13px; color:#8C877F; line-height:1.7; }

/* ============ 页脚 ============ */
.site-footer{ background:var(--ink); color:#F5F3F0; margin-top:var(--sec-y); }
.footer-strip{
  height:8px;
  background-image:repeating-linear-gradient(45deg, rgba(255,74,23,.85) 0 8px, transparent 8px 20px);
}
.footer-grid{
  display:grid; gap:32px; grid-template-columns:1fr;
  padding-top:44px; padding-bottom:36px;
}
@media (min-width:640px){ .footer-grid{ grid-template-columns:repeat(2,minmax(0,1fr)); } }
@media (min-width:1024px){ .footer-grid{ grid-template-columns:1.6fr 1fr 1fr 1.2fr; } }
.footer-brand{ display:flex; align-items:center; gap:10px; }
.footer-brand .brand-mark{ background:var(--brand); }
.footer-brand .brand-text{ color:#fff; }
.footer-brand .brand-sub{ color:#B9B4AD; }
.footer-about{ margin-top:16px; max-width:420px; font-size:14px; line-height:1.85; color:#B9B4AD; }
.footer-title{ font-size:14px; font-weight:700; color:#fff; margin-bottom:14px; letter-spacing:.01em; }
.footer-list{ display:flex; flex-direction:column; gap:10px; }
.footer-list a{ font-size:14px; color:#B9B4AD; transition:color .2s ease-out; }
.footer-list a:hover{ color:var(--accent); }
.footer-bottom{
  display:flex; flex-wrap:wrap; gap:10px; justify-content:space-between;
  padding-top:18px; padding-bottom:24px;
  border-top:1px solid rgba(255,255,255,.10);
  font-size:13px; color:#8C877F;
}

/* ============ 移动端导航 ============ */
@media (max-width:900px){
  .nav-toggle{ display:inline-flex; }
  .nav-panel{ flex-direction:column; align-items:stretch; gap:8px; padding:10px; }
  .nav-links{ display:none; width:100%; }
  .nav-links.open{ display:grid; grid-template-columns:repeat(2,minmax(0,1fr)); gap:6px; }
  .nav-links.open .nav-item{ background:var(--bg); justify-content:flex-start; }
  .nav-links.open .nav-item.active{ background:rgba(255,74,23,.10); }
  .nav-cta{ display:none; width:100%; }
  .nav-links.open + .nav-cta{ display:flex; }
  .nav-links.open + .nav-cta .btn{ width:100%; }
}
@media (max-width:640px){
  .stat-row{ grid-template-columns:1fr 1fr; }
  .hero-media-sub{ width:44%; }
  .hero-media::after{ display:none; }
  .guard-grid{ grid-template-columns:1fr; }
  .plan-foot{ flex-direction:column; align-items:flex-start; gap:10px; }
}