/* roulang page: index */
:root{
  --brand:#F0522B;
  --brand-dark:#D8411C;
  --green:#147A5C;
  --lime:#D8F35B;
  --ink:#141518;
  --bg:#F6F3EE;
  --card:#FFFFFF;
  --line:#E7E1D8;
  --t1:#141518;
  --t2:#565B62;
  --t3:#8C9199;
  --r-card:18px;
  --r-img:16px;
  --r-btn:12px;
  --shadow-hover:0 18px 40px rgba(20,21,24,.10);
  --side-w:232px;
  --side-w-sm:84px;
  --ease:cubic-bezier(.22,.61,.36,1);
  --font:"PingFang SC","Microsoft YaHei","Source Han Sans SC",system-ui,-apple-system,"Segoe UI",sans-serif;
}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{margin:0;font-family:var(--font);font-size:16px;line-height:1.85;color:var(--t1);background:var(--bg);overflow-x:hidden;-webkit-font-smoothing:antialiased}
img{max-width:100%;display:block;border-style:none}
a{color:var(--ink);text-decoration:none;transition:color .25s var(--ease)}
a:hover{color:var(--brand)}
h1,h2,h3,h4{font-weight:800;letter-spacing:-.01em;line-height:1.22;color:var(--t1);margin:0 0 16px}
p{margin:0 0 16px;color:var(--t2)}
ul{margin:0;padding:0;list-style:none}
button{font-family:inherit}
:focus-visible{outline:2px solid var(--brand);outline-offset:3px;border-radius:4px}
.shell{width:100%;max-width:1240px;margin:0 auto;padding:0 24px}

/* 左侧 App Shell */
.app-side{position:fixed;top:0;left:0;bottom:0;width:var(--side-w);background:var(--ink);display:flex;flex-direction:column;gap:22px;padding:26px 18px;z-index:1040;overflow-y:auto}
.app-side::-webkit-scrollbar{width:6px}
.app-side::-webkit-scrollbar-thumb{background:rgba(255,255,255,.14);border-radius:999px}
.side-brand{display:flex;align-items:center;gap:11px;padding:4px 6px 18px;border-bottom:1px solid rgba(255,255,255,.08)}
.brand-mark{width:34px;height:34px;flex:none;border-radius:10px;background-color:var(--brand);background-image:radial-gradient(circle,#fff 1.6px,transparent 1.7px);background-size:9px 9px;background-position:5px 5px}
.brand-text{font-size:19px;font-weight:800;color:#F6F3EE;letter-spacing:.02em;white-space:nowrap}
.side-nav{display:flex;flex-direction:column;gap:6px}
.side-group-title{font-size:12px;letter-spacing:.12em;color:#7E8390;padding:16px 12px 6px;text-transform:uppercase}
.side-link{display:flex;align-items:center;gap:12px;height:44px;padding:0 12px;border-radius:10px;color:#C9CBD2;font-size:15px;font-weight:600;position:relative;transition:background .25s var(--ease),color .25s var(--ease)}
.side-link i{width:20px;text-align:center;font-size:15px}
.side-link:hover{background:rgba(255,255,255,.06);color:#F6F3EE}
.side-link.active{background:rgba(240,82,43,.14);color:#FFF3EF}
.side-link.active::before{content:"";position:absolute;left:0;top:9px;bottom:9px;width:3px;border-radius:0 3px 3px 0;background:var(--brand)}
.side-card{margin-top:auto;background:rgba(255,255,255,.05);border:1px solid rgba(255,255,255,.08);border-radius:14px;padding:16px}
.side-card strong{display:block;color:#F6F3EE;font-size:14px;margin-bottom:6px}
.side-card p{font-size:12.5px;line-height:1.7;color:#8C9199;margin:0 0 12px}
.side-card .btn-mini{display:inline-flex;align-items:center;gap:6px;font-size:13px;font-weight:700;color:var(--brand)}
.app-main{margin-left:var(--side-w);min-height:100vh;display:flex;flex-direction:column}
.mobile-bar{display:none;align-items:center;justify-content:space-between;height:64px;padding:0 20px;background:var(--ink);position:sticky;top:0;z-index:1030}
.mobile-bar .brand-text{font-size:17px}
.hamburger{background:transparent;border:1px solid rgba(255,255,255,.2);color:#F6F3EE;width:42px;height:42px;border-radius:10px;display:inline-flex;align-items:center;justify-content:center;cursor:pointer;transition:background .25s var(--ease)}
.hamburger:hover{background:rgba(255,255,255,.1)}
.offcanvas.dark-drawer{background:var(--ink);color:#F6F3EE;width:280px}
.dark-drawer .offcanvas-header{border-bottom:1px solid rgba(255,255,255,.08);padding:20px}
.dark-drawer .btn-close{filter:invert(1) grayscale(1) brightness(2)}
.dark-drawer .offcanvas-body{padding:20px}

/* 章节 */
.sec{padding:96px 0}
.sec-tight{padding:64px 0}
.sec-head{display:flex;align-items:flex-end;justify-content:space-between;gap:20px;flex-wrap:wrap;margin-bottom:36px}
.sec-head h2{font-size:clamp(1.5rem,2.6vw,2.15rem);margin:0}
.sec-head p{margin:8px 0 0;font-size:15px}
.eyebrow{display:inline-flex;align-items:center;gap:8px;font-size:13px;font-weight:700;letter-spacing:.1em;color:var(--brand);margin-bottom:14px}
.link-more{position:relative;display:inline-flex;align-items:center;gap:7px;font-weight:700;color:var(--ink);padding-bottom:3px}
.link-more::after{content:"";position:absolute;left:0;bottom:0;width:100%;height:2px;background:var(--brand);transform:scaleX(0);transform-origin:left;transition:transform .3s var(--ease)}
.link-more:hover{color:var(--brand)}
.link-more:hover::after{transform:scaleX(1)}

/* 按钮 */
.btn-brand,.btn-ghost{display:inline-flex;align-items:center;justify-content:center;gap:9px;padding:14px 28px;border-radius:var(--r-btn);font-size:15px;font-weight:700;cursor:pointer;border:1.5px solid transparent;transition:all .28s var(--ease)}
.btn-brand{background:var(--brand);color:#fff}
.btn-brand:hover{background:var(--brand-dark);color:#fff;transform:translateY(-2px);box-shadow:0 14px 30px rgba(240,82,43,.28)}
.btn-brand:active{transform:translateY(0)}
.btn-ghost{border-color:var(--ink);color:var(--ink);background:transparent}
.btn-ghost:hover{background:var(--ink);color:#F6F3EE;transform:translateY(-2px)}

/* 徽章 */
.badge-x{display:inline-block;padding:4px 12px;border-radius:999px;font-size:12px;font-weight:700;letter-spacing:.02em;background:rgba(216,243,91,.35);color:#3F4E12}
.badge-x.b-green{background:rgba(20,122,92,.12);color:var(--green)}
.badge-x.b-orange{background:rgba(240,82,43,.12);color:var(--brand-dark)}
.badge-onimg{position:absolute;top:16px;left:16px;background:rgba(255,255,255,.94);color:var(--ink);box-shadow:0 4px 14px rgba(20,21,24,.12)}

/* Hero */
.hero{position:relative;padding:72px 0 56px;overflow:hidden;background:var(--bg)}
.hero::before{content:"";position:absolute;inset:0;background-image:repeating-linear-gradient(135deg,rgba(20,21,24,.03) 0 1px,transparent 1px 15px);pointer-events:none}
.hero .shell{position:relative;z-index:1}
.hero-title{font-size:clamp(2rem,3.6vw,3.1rem);line-height:1.15;margin-bottom:20px}
.hero-sub{font-size:clamp(1rem,1.4vw,1.2rem);color:var(--t2);margin-bottom:30px;max-width:520px}
.hero-actions{display:flex;gap:14px;flex-wrap:wrap}
.hero-visual{position:relative;overflow:hidden;border-radius:var(--r-img);min-height:360px;border:1px solid var(--line)}
.hero-visual img{width:100%;height:100%;min-height:360px;object-fit:cover}
.hero-stats{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;margin-top:56px;padding-top:28px;border-top:1px solid var(--line)}
.stat-num{font-size:clamp(1.6rem,2.6vw,2.1rem);font-weight:800;font-variant-numeric:tabular-nums;color:var(--t1);line-height:1.2}
.stat-num span{font-size:.6em;color:var(--brand);margin-left:2px}
.stat-label{font-size:13px;color:var(--t3);letter-spacing:.06em;margin-top:2px}

/* 主张段 */
.claim{padding:80px 0}
.claim-inner{max-width:62%;border-left:3px solid var(--brand);padding-left:28px}
.claim-text{font-size:clamp(1.5rem,2.6vw,2.1rem);line-height:1.5;font-weight:700;color:var(--t1);margin:0}

/* 图文交错 */
.story{display:grid;grid-template-columns:1fr 1fr;gap:52px;align-items:center}
.story-media{border-radius:var(--r-img);overflow:hidden;border:1px solid var(--line)}
.story-media img{width:100%;height:340px;object-fit:cover;transition:transform .5s var(--ease)}
.story-media:hover img{transform:scale(1.04)}
.story-copy h2{font-size:clamp(1.35rem,2.2vw,1.85rem)}
.story-reverse .story-media{order:2}
.story-line{border:0;border-top:1px solid var(--line);margin:72px 0}

/* 卡片 */
.card-x{background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);overflow:hidden;height:100%;transition:transform .3s var(--ease),box-shadow .3s var(--ease),border-color .3s var(--ease)}
.card-x:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover);border-color:#DBD4C9}
.card-media{position:relative;overflow:hidden;background:#EDE8E0}
.card-media img{width:100%;height:100%;object-fit:cover;transition:transform .55s var(--ease)}
.card-x:hover .card-media img{transform:scale(1.04)}
.ratio-16x9{aspect-ratio:16/9}
.ratio-1x1{aspect-ratio:1/1}
.card-body-x{padding:22px 24px 26px}
.card-body-x h3{font-size:1.12rem;margin-bottom:10px}
.card-body-x h3 a:hover{color:var(--brand)}
.card-body-x p{font-size:14.5px;line-height:1.75;margin-bottom:0;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.card-meta{display:flex;align-items:center;gap:12px;font-size:13px;color:var(--t3);margin-top:14px}
.mini-card{display:grid;grid-template-columns:104px 1fr;gap:16px;padding:14px;align-items:center}
.mini-card .card-media{border-radius:12px;overflow:hidden}
.mini-card h3{font-size:1rem;margin-bottom:6px;line-height:1.45}
.mini-card p{font-size:13.5px;line-height:1.7;-webkit-line-clamp:2}
.mini-card .card-meta{margin-top:8px}

/* 最新信息 */
.news-list{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:24px}
.news-item{background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);padding:26px 28px;display:flex;flex-direction:column;transition:transform .3s var(--ease),box-shadow .3s var(--ease),border-color .3s var(--ease)}
.news-item:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover);border-color:#DBD4C9}
.news-top{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-bottom:14px}
.news-date{font-size:13px;color:var(--t3);font-variant-numeric:tabular-nums}
.news-title{font-size:1.1rem;line-height:1.5;margin-bottom:10px}
.news-title a:hover{color:var(--brand)}
.news-summary{font-size:14.5px;line-height:1.78;margin-bottom:16px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.news-more{margin-top:auto;display:inline-flex;align-items:center;gap:7px;font-size:14px;font-weight:700;color:var(--brand)}
.news-more:hover{color:var(--brand-dark);gap:11px}
.news-empty{grid-column:1/-1;text-align:center;padding:56px 24px;background:var(--card);border:1px dashed var(--line);border-radius:var(--r-card)}
.news-empty i{font-size:30px;color:var(--t3);margin-bottom:14px;display:block}
.news-empty p{font-size:15px;color:var(--t3);margin-bottom:18px}

/* 信任背书 */
.trust{background:#F1EDE6;border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.logo-wall{display:grid;grid-template-columns:repeat(6,1fr);gap:16px}
.logo-cell{background:#fff;border:1px solid var(--line);border-radius:14px;padding:20px 12px;text-align:center;font-size:13.5px;font-weight:700;color:#9A9FA8;filter:grayscale(1);transition:all .3s var(--ease)}
.logo-cell:hover{filter:none;color:var(--t1);border-color:#DBD4C9;transform:translateY(-3px)}
.trust-note{font-size:13.5px;color:var(--t3);margin:22px 0 0}

/* FAQ */
.faq .accordion-item{background:transparent;border:0;border-bottom:1px solid var(--line)}
.faq .accordion-button{background:transparent;color:var(--t1);font-weight:700;font-size:17px;padding:22px 0;box-shadow:none;border-radius:0}
.faq .accordion-button:not(.collapsed){color:var(--brand);background:transparent;box-shadow:none}
.faq .accordion-button::after{background-image:none;content:"\f078";font-family:"Font Awesome 6 Free";font-weight:900;font-size:13px;width:auto;height:auto;transition:transform .3s var(--ease);color:var(--brand)}
.faq .accordion-button:not(.collapsed)::after{transform:rotate(180deg)}
.faq .accordion-body{padding:0 0 22px;font-size:15.5px;line-height:1.85;color:var(--t2)}

/* CTA 带 */
.cta-band{background:var(--ink);color:#F6F3EE;padding:72px 0}
.cta-band h2{color:#fff;font-size:clamp(1.4rem,2.4vw,2rem);margin-bottom:10px}
.cta-band p{color:#9DA2AC;font-size:15px;margin:0}
.cta-form{display:flex;gap:12px;flex-wrap:wrap}
.cta-input{flex:1 1 240px;min-width:0;background:#fff;border:1px solid transparent;border-radius:var(--r-btn);padding:14px 18px;font-size:15px;color:var(--t1);transition:border-color .25s var(--ease),box-shadow .25s var(--ease)}
.cta-input::placeholder{color:#9A9FA8}
.cta-input:focus{outline:none;border-color:var(--brand);box-shadow:0 0 0 3px rgba(240,82,43,.28)}
.cta-tip{font-size:13px;margin:12px 0 0;color:#9DA2AC;min-height:20px}
.cta-tip.err{color:#FF9C7E}
.cta-tip.ok{color:var(--lime)}

/* 页脚 */
.site-foot{background:var(--ink);color:#B9BDC6;padding:72px 0 0;margin-top:auto}
.foot-brand{display:flex;align-items:center;gap:11px;margin-bottom:16px}
.foot-brand .brand-text{font-size:18px}
.site-foot h4{font-size:14px;letter-spacing:.08em;color:#F6F3EE;margin-bottom:18px;font-weight:700}
.site-foot p{color:#8C9199;font-size:14px;line-height:1.8}
.foot-links li{margin-bottom:11px}
.foot-links a{color:#B9BDC6;font-size:14.5px}
.foot-links a:hover{color:var(--brand)}
.foot-contact li{display:flex;gap:10px;font-size:14.5px;color:#B9BDC6;margin-bottom:12px;line-height:1.6}
.foot-contact i{color:var(--brand);margin-top:5px}
.foot-bar{margin-top:56px;border-top:1px solid rgba(255,255,255,.08);padding:22px 0;display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;font-size:13.5px;color:#7E8390}
.foot-bar a{color:#7E8390}
.foot-bar a:hover{color:var(--brand)}

/* 动效 */
.fade-up{opacity:0;transform:translateY(18px);transition:opacity .5s var(--ease),transform .5s var(--ease)}
.fade-up.in{opacity:1;transform:none}

/* 响应式 */
@media (max-width:1399.98px){
  .shell{padding:0 24px}
}
@media (max-width:1199.98px){
  .app-side{width:var(--side-w-sm);padding:22px 12px;align-items:center}
  .app-main{margin-left:var(--side-w-sm)}
  .side-brand{padding:4px 0 18px;justify-content:center}
  .brand-text,.side-link span,.side-group-title,.side-card{display:none}
  .side-link{justify-content:center;width:48px;padding:0}
  .side-link.active::before{top:12px;bottom:12px}
  .logo-wall{grid-template-columns:repeat(3,1fr)}
}
@media (max-width:991.98px){
  .app-side{display:none}
  .app-main{margin-left:0}
  .mobile-bar{display:flex}
  .sec{padding:64px 0}
  .claim{padding:56px 0}
  .claim-inner{max-width:100%;padding-left:20px}
  .story{grid-template-columns:1fr;gap:28px}
  .story-reverse .story-media{order:0}
  .story-line{margin:48px 0}
  .hero{padding:48px 0 40px}
  .hero-visual{min-height:260px;margin-top:36px}
  .hero-visual img{min-height:260px}
  .news-list{grid-template-columns:1fr}
  .cta-band{padding:56px 0}
}
@media (max-width:575.98px){
  .shell{padding:0 18px}
  body{font-size:15.5px}
  .hero-stats{grid-template-columns:1fr;gap:18px;margin-top:36px}
  .logo-wall{grid-template-columns:repeat(2,1fr)}
  .card-body-x{padding:18px 18px 22px}
  .news-item{padding:20px}
  .hero-actions .btn-brand,.hero-actions .btn-ghost{width:100%}
  .cta-form .btn-brand{width:100%}
  .mini-card{grid-template-columns:86px 1fr;gap:12px}
}
@media (prefers-reduced-motion:reduce){
  .fade-up{opacity:1;transform:none;transition:none}
  html{scroll-behavior:auto}
  *{animation:none!important;transition:none!important}
}

/* roulang page: article */
:root{
  --orange:#F0522B;
  --orange-dark:#D8411C;
  --green:#147A5C;
  --lime:#D8F35B;
  --ink:#141518;
  --bg:#F6F3EE;
  --card:#FFFFFF;
  --line:#E7E1D8;
  --t1:#141518;
  --t2:#565B62;
  --t3:#8C9199;
  --r-card:18px;
  --r-img:16px;
  --r-btn:12px;
  --side-w:232px;
  --shadow-h:0 18px 40px rgba(20,21,24,.10);
  --ease:cubic-bezier(.22,.61,.36,1);
}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:"PingFang SC","Microsoft YaHei","Source Han Sans SC",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
  font-size:16px;
  line-height:1.85;
  color:var(--t1);
  background:var(--bg);
  font-feature-settings:"tnum";
}
a{color:inherit;text-decoration:none;transition:color .25s var(--ease),background-color .25s var(--ease)}
img{max-width:100%;display:block}
button,input,textarea{font:inherit;color:inherit}
button{background:none;border:0;cursor:pointer}
h1,h2,h3,h4{margin:0;font-weight:800;letter-spacing:-.01em;line-height:1.28}
p{margin:0}
ul,ol{margin:0;padding:0;list-style:none}
:focus-visible{outline:2px solid var(--orange);outline-offset:2px}

/* ---------- 左侧 App Shell ---------- */
.app-side{
  position:fixed;top:0;left:0;bottom:0;width:var(--side-w);
  background:var(--ink);color:#EDE9E2;z-index:1030;overflow-y:auto;
}
.side-inner{display:flex;flex-direction:column;min-height:100%;padding:22px 16px 20px}
.side-brand{display:flex;align-items:center;gap:10px;padding:4px 8px 22px;color:#fff}
.brand-mark{
  width:26px;height:26px;border-radius:8px;background:var(--orange);
  position:relative;flex:0 0 auto;display:inline-block;
}
.brand-mark::after{content:"";position:absolute;inset:8px 7px;border-radius:2px;background:var(--lime)}
.brand-text{font-weight:800;font-size:18px;letter-spacing:-.01em}
.side-nav{display:flex;flex-direction:column;gap:4px}
.side-group-title{
  font-size:12px;letter-spacing:.12em;color:#8C9199;padding:20px 12px 8px;font-weight:600;
}
.side-link{
  position:relative;display:flex;align-items:center;gap:12px;height:44px;padding:0 12px;
  border-radius:12px;color:#C9C6C0;font-size:15px;
}
.side-link i{width:20px;text-align:center;font-size:15px}
.side-link:hover{background:rgba(255,255,255,.07);color:#fff}
.side-link.active{background:rgba(240,82,43,.18);color:#fff}
.side-link.active::before{
  content:"";position:absolute;left:0;top:10px;bottom:10px;width:3px;border-radius:2px;background:var(--orange);
}
.side-foot{margin-top:auto;padding-top:24px}
.side-tip{font-size:13px;color:#9A9B9E;padding:0 8px 10px}
.side-form{display:flex;gap:8px;padding:0 8px}
.side-form input{
  flex:1;min-width:0;height:38px;padding:0 12px;border-radius:10px;
  border:1px solid rgba(255,255,255,.16);background:rgba(255,255,255,.06);color:#fff;font-size:13px;
}
.side-form input::placeholder{color:#8C9199}
.side-form input:focus{outline:none;border-color:var(--orange);background:rgba(255,255,255,.1)}
.side-form button{
  height:38px;padding:0 14px;border-radius:10px;background:var(--orange);color:#fff;
  font-size:13px;font-weight:600;
}
.side-form button:hover{background:var(--orange-dark)}

/* ---------- 移动端顶栏 ---------- */
.mobile-top{
  display:none;position:fixed;top:0;left:0;right:0;height:64px;z-index:1040;
  align-items:center;justify-content:space-between;padding:0 16px;
  background:var(--ink);color:#fff;
}
.mobile-top .side-brand{padding:0}
.nav-toggle{
  width:42px;height:42px;border-radius:12px;background:rgba(255,255,255,.08);
  color:#fff;font-size:17px;display:flex;align-items:center;justify-content:center;
}
.nav-toggle:hover{background:var(--orange)}

/* ---------- 抽屉 ---------- */
.drawer{background:var(--ink)!important;color:#EDE9E2;width:280px!important;border:0}
.drawer .offcanvas-header{border-bottom:1px solid rgba(255,255,255,.08);padding:16px 18px}
.drawer .side-brand{padding:0}
.drawer-close{color:#fff;font-size:18px;width:36px;height:36px;border-radius:10px;background:rgba(255,255,255,.08)}
.drawer-close:hover{background:var(--orange)}
.drawer .offcanvas-body{padding:18px}

/* ---------- 主体 ---------- */
.app-main{
  margin-left:var(--side-w);min-height:100vh;display:flex;flex-direction:column;
  background:var(--bg);
}
.shell{width:100%;max-width:1240px;margin:0 auto;padding:0 24px}
.section{padding:72px 24px}
.section-tight{padding:48px 24px}

/* ---------- 面包屑与标题区 ---------- */
.article-head{border-bottom:1px solid var(--line);background:linear-gradient(180deg,#FDFBF8 0%,#F6F3EE 100%)}
.crumb{
  display:flex;align-items:center;gap:8px;font-size:14px;color:var(--t3);
  padding:28px 24px 0;flex-wrap:wrap;max-width:1240px;margin:0 auto;
}
.crumb a{color:var(--t2)}
.crumb a:hover{color:var(--orange)}
.crumb-cur{
  color:var(--t3);max-width:320px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;
}
.head-grid{
  max-width:1240px;margin:0 auto;padding:26px 24px 56px;
  display:grid;grid-template-columns:minmax(0,1fr);gap:36px;align-items:center;
}
@media(min-width:992px){.head-grid{grid-template-columns:minmax(0,1.35fr) minmax(0,1fr);gap:56px}}
.head-main h1{font-size:clamp(1.9rem,3.4vw,2.9rem);line-height:1.2;margin:0 0 18px;font-weight:800}
.head-sub{font-size:17px;color:var(--t2);max-width:640px;margin-bottom:22px}
.meta-row{display:flex;align-items:center;gap:12px;flex-wrap:wrap;font-size:13px;color:var(--t3)}
.meta-row i{margin-right:6px;color:var(--t3)}
.meta-row .dot{width:4px;height:4px;border-radius:50%;background:#C9C2B6}
.head-media img{width:100%;aspect-ratio:16/9;object-fit:cover;border-radius:var(--r-img);border:1px solid var(--line)}

/* ---------- 正文网格 ---------- */
.read-grid{
  max-width:1240px;margin:0 auto;padding:56px 24px 8px;
  display:grid;grid-template-columns:minmax(0,1fr);gap:44px;
}
@media(min-width:1200px){.read-grid{grid-template-columns:minmax(0,1fr) 264px;gap:56px}}
.read-main{min-width:0}
.article-body{max-width:768px;font-size:17.5px;line-height:1.9;color:#1C1E22}
.article-body p{margin:0 0 1.25em}
.article-body h2{
  position:relative;padding-left:18px;font-size:1.5rem;font-weight:800;
  margin:2.4em 0 .9em;line-height:1.4;scroll-margin-top:32px;
}
.article-body h2::before{
  content:"";position:absolute;left:0;top:.3em;width:4px;height:.92em;border-radius:2px;background:var(--orange);
}
.article-body h3{font-size:1.18rem;font-weight:700;margin:1.8em 0 .7em;scroll-margin-top:32px}
.article-body ul,.article-body ol{margin:0 0 1.4em;padding-left:1.3em}
.article-body ul li{list-style:disc}
.article-body ol li{list-style:decimal}
.article-body li{margin-bottom:.6em}
.article-body blockquote{
  margin:1.7em 0;padding:18px 22px;border-left:3px solid var(--orange);
  background:#FBF8F4;border-radius:0 14px 14px 0;color:var(--t2);
}
.article-body blockquote p:last-child{margin-bottom:0}
.article-body table{width:100%;border-collapse:collapse;margin:1.7em 0;font-size:15.5px}
.article-body th,.article-body td{border-bottom:1px solid var(--line);padding:12px 10px;text-align:left}
.article-body th{font-weight:700;border-bottom-color:#D6CFC3}
.article-body a{color:var(--orange);text-decoration:underline;text-underline-offset:3px}
.article-body a:hover{color:var(--orange-dark)}
.article-body img{border-radius:var(--r-img);margin:1.5em 0}
.article-body figure{margin:1.6em 0}
.article-body figure img{margin:0 0 10px}
.article-body figcaption{font-size:13px;color:var(--t3);line-height:1.7}

/* ---------- 空态 ---------- */
.article-empty{
  max-width:640px;background:var(--card);border:1px solid var(--line);
  border-radius:var(--r-card);padding:44px 36px;text-align:center;
}
.article-empty .empty-icon{
  width:52px;height:52px;margin:0 auto 18px;border-radius:14px;border:1px solid var(--line);
  display:flex;align-items:center;justify-content:center;color:var(--t3);font-size:20px;background:#FBFAF7;
}
.article-empty h2{font-size:1.35rem;margin-bottom:12px}
.article-empty p{color:var(--t2);font-size:15.5px;margin-bottom:24px}

/* ---------- 目录 ---------- */
.toc-mobile{margin-bottom:28px}
.toc-toggle{
  width:100%;display:flex;align-items:center;justify-content:space-between;
  padding:14px 18px;background:var(--card);border:1px solid var(--line);border-radius:14px;
  font-size:15px;font-weight:600;
}
.toc-toggle i{transition:transform .3s var(--ease);font-size:13px;color:var(--t3)}
.toc-toggle[aria-expanded="true"]{color:var(--orange)}
.toc-toggle[aria-expanded="true"] i{transform:rotate(180deg)}
.toc-mobile .toc-list{padding:14px 18px 4px;border:1px solid var(--line);border-top:0;border-radius:0 0 14px 14px;background:var(--card);margin-top:-6px}
.toc-card{
  position:sticky;top:32px;background:var(--card);border:1px solid var(--line);
  border-radius:var(--r-card);padding:22px 20px;
}
.toc-card h3{font-size:14px;letter-spacing:.08em;color:var(--t3);font-weight:700;margin-bottom:14px}
.toc-list li{margin-bottom:10px}
.toc-list a{font-size:14px;color:var(--t2);display:block;line-height:1.6;border-left:2px solid transparent;padding-left:10px}
.toc-list a:hover{color:var(--orange);border-left-color:var(--orange)}
.toc-card .toc-back{display:block;margin-top:18px;padding-top:16px;border-top:1px solid var(--line);font-size:13.5px;color:var(--orange)}

/* ---------- 互动条 / 标签 ---------- */
.react-bar{
  display:flex;align-items:center;gap:12px;flex-wrap:wrap;margin:36px 0 0;
  padding:16px 0;border-top:1px solid var(--line);border-bottom:1px solid var(--line);
}
.react-btn{
  display:inline-flex;align-items:center;gap:8px;padding:9px 16px;border-radius:999px;
  border:1px solid var(--line);background:var(--card);font-size:14px;color:var(--t2);
  transition:all .25s var(--ease);
}
.react-btn:hover{border-color:var(--orange);color:var(--orange);transform:translateY(-2px)}
.react-btn.on{background:rgba(240,82,43,.1);border-color:var(--orange);color:var(--orange)}
.react-btn b{font-weight:700;font-variant-numeric:tabular-nums}
.react-stat{display:inline-flex;align-items:center;gap:8px;font-size:14px;color:var(--t3);margin-left:auto}
.tag-row{display:flex;flex-wrap:wrap;gap:10px;margin-top:26px}
.chip{
  display:inline-flex;align-items:center;gap:6px;padding:6px 13px;border-radius:999px;
  font-size:12.5px;font-weight:600;background:rgba(240,82,43,.1);color:var(--orange-dark);
}
.chip-soft{background:#F1EDE6;color:var(--t2);font-weight:500}
.chip-soft:hover{background:var(--ink);color:#fff}
.chip-lime{background:var(--lime);color:#141518}

/* ---------- 作者卡 ---------- */
.author-card{
  display:flex;gap:16px;align-items:flex-start;margin-top:34px;padding:22px 24px;
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);
}
.author-avatar{
  width:52px;height:52px;flex:0 0 auto;border-radius:14px;background:var(--ink);color:#fff;
  display:flex;align-items:center;justify-content:center;font-size:19px;font-weight:800;
}
.author-card h3{font-size:16px;margin-bottom:6px}
.author-card p{font-size:14px;color:var(--t2);line-height:1.75}

/* ---------- 相关推荐 ---------- */
.rel-wrap{margin-top:64px}
.block-head{display:flex;align-items:flex-end;justify-content:space-between;gap:20px;margin-bottom:28px}
.block-head h2{font-size:1.5rem}
.block-head .more{font-size:14px;color:var(--orange);font-weight:600;display:inline-flex;align-items:center;gap:6px}
.block-head .more:hover{color:var(--orange-dark);gap:10px}
.rel-list{display:grid;grid-template-columns:minmax(0,1fr);gap:20px}
@media(min-width:768px){.rel-list{grid-template-columns:repeat(3,minmax(0,1fr))}}
.rel-card{
  display:flex;gap:16px;background:var(--card);border:1px solid var(--line);
  border-radius:var(--r-card);padding:16px;transition:all .3s var(--ease);
}
.rel-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-h);border-color:#DCD4C8}
.rel-card img{width:96px;height:96px;flex:0 0 auto;object-fit:cover;border-radius:12px}
.rel-body{min-width:0}
.rel-body h3{font-size:15.5px;line-height:1.5;margin:8px 0 6px}
.rel-card:hover h3{color:var(--orange)}
.rel-body p{font-size:13.5px;color:var(--t2);line-height:1.7;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}

/* ---------- FAQ ---------- */
.faq{margin-top:64px;background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);padding:8px 26px}
.faq h2{font-size:1.4rem;padding:24px 0 8px}
.faq-item{border-bottom:1px solid var(--line)}
.faq-item:last-child{border-bottom:0}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:18px;
  padding:20px 0;text-align:left;font-size:16px;font-weight:600;color:var(--t1);
  transition:color .25s var(--ease);
}
.faq-q i{font-size:13px;color:var(--t3);transition:transform .3s var(--ease)}
.faq-q:hover{color:var(--orange)}
.faq-q[aria-expanded="true"]{color:var(--orange)}
.faq-q[aria-expanded="true"] i{transform:rotate(180deg);color:var(--orange)}
.faq-a{padding:0 0 22px;font-size:15.5px;color:var(--t2);line-height:1.85;max-width:760px}

/* ---------- CTA ---------- */
.cta-band{
  margin:72px 24px 0;background:var(--ink);border-radius:24px;padding:52px 40px;
  display:grid;grid-template-columns:minmax(0,1fr);gap:28px;align-items:center;color:#EDE9E2;
}
@media(min-width:992px){.cta-band{grid-template-columns:minmax(0,1fr) minmax(0,420px);gap:48px;padding:60px 56px}}
.cta-band h2{font-size:clamp(1.5rem,2.4vw,2rem);color:#fff;margin-bottom:12px}
.cta-band p{color:#B7B4AE;font-size:15.5px;max-width:520px}
.cta-form{display:flex;gap:10px;flex-wrap:wrap}
.cta-form input{
  flex:1;min-width:200px;height:52px;padding:0 18px;border-radius:var(--r-btn);
  border:1px solid rgba(255,255,255,.18);background:rgba(255,255,255,.07);color:#fff;font-size:15px;
}
.cta-form input::placeholder{color:#8C9199}
.cta-form input:focus{outline:none;border-color:var(--orange)}
.cta-form button{
  height:52px;padding:0 28px;border-radius:var(--r-btn);background:var(--orange);color:#fff;
  font-weight:700;transition:all .25s var(--ease);
}
.cta-form button:hover{background:var(--orange-dark);transform:translateY(-2px)}
.cta-note{margin-top:14px;font-size:13px;color:#8C9199}

/* ---------- 返回按钮 ---------- */
.back-row{max-width:1240px;margin:0 auto;padding:40px 24px 72px}

/* ---------- 按钮 ---------- */
.act-btn{
  display:inline-flex;align-items:center;gap:10px;padding:14px 28px;border-radius:var(--r-btn);
  font-size:15px;font-weight:600;transition:all .28s var(--ease);
}
.act-btn-primary{background:var(--orange);color:#fff;border:1px solid var(--orange)}
.act-btn-primary:hover{background:var(--orange-dark);border-color:var(--orange-dark);transform:translateY(-2px);box-shadow:0 14px 28px rgba(240,82,43,.28)}
.act-btn-ghost{border:1.5px solid var(--ink);color:var(--ink);background:transparent}
.act-btn-ghost:hover{background:var(--ink);color:#fff;transform:translateY(-2px)}

/* ---------- 页脚 ---------- */
.site-foot{background:var(--ink);color:#C9C6C0;padding:64px 0 0;margin-top:auto}
.site-foot .shell{max-width:1240px}
.foot-brand{display:flex;align-items:center;gap:10px;margin-bottom:16px;color:#fff}
.site-foot p{font-size:14px;line-height:1.85;color:#9A9B9E;max-width:400px}
.site-foot h4{font-size:14px;color:#fff;margin-bottom:18px;letter-spacing:.04em}
.foot-links li{margin-bottom:12px}
.foot-links a{font-size:14px;color:#9A9B9E}
.foot-links a:hover{color:var(--orange)}
.foot-contact li{display:flex;gap:10px;font-size:14px;color:#9A9B9E;margin-bottom:12px;line-height:1.7}
.foot-contact i{color:var(--orange);margin-top:5px}
.foot-bar{
  margin-top:44px;padding:22px 0;border-top:1px solid rgba(255,255,255,.08);
  display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;font-size:13px;color:#8C9199;
}

/* ---------- 响应式 ---------- */
@media (min-width:992px) and (max-width:1199px){
  :root{--side-w:84px}
  .side-inner{padding:22px 12px 20px}
  .side-link{justify-content:center;padding:0}
  .side-link span{display:none}
  .side-link:hover span{
    display:block;position:absolute;left:calc(100% + 12px);top:50%;transform:translateY(-50%);
    background:var(--ink);color:#fff;padding:7px 13px;border-radius:10px;white-space:nowrap;
    box-shadow:var(--shadow-h);font-size:13px;z-index:6;
  }
  .side-brand{justify-content:center;padding:4px 0 22px}
  .side-brand .brand-text{display:none}
  .side-group-title{text-align:center;padding:20px 0 8px;font-size:10px;letter-spacing:.06em}
  .side-foot{display:none}
}
@media (max-width:991px){
  :root{--side-w:0px}
  .app-side{display:none}
  .mobile-top{display:flex}
  .app-main{padding-top:64px}
  .section{padding:56px 0}
  .read-grid{padding:40px 24px 8px;gap:32px}
  .article-body{font-size:16.5px;line-height:1.88}
  .cta-band{margin:56px 24px 0;padding:40px 24px;border-radius:20px}
  .back-row{padding:32px 24px 56px}
  .react-stat{margin-left:0;width:100%}
}
@media (max-width:575px){
  .shell,.crumb,.head-grid,.read-grid{padding-left:18px;padding-right:18px}
  .head-main h1{font-size:1.75rem}
  .article-head .crumb{padding-top:22px}
  .rel-card{flex-direction:column}
  .rel-card img{width:100%;height:150px}
  .faq{padding:8px 18px}
  .author-card{flex-direction:column}
  .cta-band{margin:44px 18px 0}
  .foot-bar{flex-direction:column;gap:8px}
}

/* ---------- 动效 ---------- */
.fade-up{opacity:0;transform:translateY(18px);animation:fadeUp .6s var(--ease) forwards}
@keyframes fadeUp{to{opacity:1;transform:none}}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation:none!important;transition:none!important;scroll-behavior:auto!important}
  .fade-up{opacity:1;transform:none}
}

/* roulang page: category1 */
:root{
  --brand:#F0522B;
  --brand-dark:#D8411C;
  --green:#147A5C;
  --lime:#D8F35B;
  --ink:#141518;
  --ink-2:#565B62;
  --ink-3:#8C9199;
  --bg:#F6F3EE;
  --card:#FFFFFF;
  --soft:#FBF9F6;
  --line:#E7E1D8;
  --r-card:18px;
  --r-img:16px;
  --r-btn:12px;
  --r-pill:999px;
  --sh:0 18px 40px rgba(20,21,24,.10);
  --shell:1240px;
  --side-w:232px;
  --ease:cubic-bezier(.22,.61,.36,1);
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:"PingFang SC","Microsoft YaHei","Source Han Sans SC",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
  font-size:16px;line-height:1.85;color:var(--ink);background:var(--bg);
  font-variant-numeric:tabular-nums;
  -webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4{letter-spacing:-.01em;line-height:1.25;margin:0;}
p{margin:0;}
a{color:inherit;text-decoration:none;transition:color .2s var(--ease);}
a:hover{color:var(--brand);}
img{max-width:100%;display:block;}
ul,ol{margin:0;padding:0;list-style:none;}
button{font-family:inherit;}
:focus-visible{outline:3px solid rgba(240,82,43,.45);outline-offset:2px;border-radius:6px;}
[id]{scroll-margin-top:96px;}

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

/* ---------- 左侧导航 ---------- */
.app-side{background:var(--ink);color:#F6F3EE;width:286px;}
.side-inner{display:flex;flex-direction:column;height:100%;padding:22px 14px 18px;overflow-y:auto;}
.side-head{display:flex;align-items:center;justify-content:space-between;gap:8px;padding:2px 6px 18px;}
.brand{display:inline-flex;align-items:center;gap:10px;}
.brand-mark{
  width:26px;height:26px;border-radius:8px;flex:none;
  background:
    radial-gradient(circle at 50% 50%,#fff 1.5px,transparent 1.6px) 0 0/8.6px 8.6px,
    linear-gradient(135deg,var(--brand),#FF8A5B);
}
.brand-text{font-weight:800;font-size:17px;letter-spacing:-.01em;color:#F6F3EE;}
.side-close{
  width:34px;height:34px;border:0;border-radius:10px;background:rgba(255,255,255,.08);
  color:#F6F3EE;align-items:center;justify-content:center;cursor:pointer;
}
.side-close:hover{background:rgba(240,82,43,.25);}
.side-nav{display:flex;flex-direction:column;gap:4px;padding:0 2px;}
.side-group-title{
  margin:20px 12px 8px;font-size:11px;letter-spacing:.14em;font-weight:700;
  color:rgba(246,243,238,.42);
}
.side-link{
  position:relative;display:flex;align-items:center;gap:12px;height:44px;
  padding:0 12px 0 9px;border-left:3px solid transparent;border-radius:10px;
  color:rgba(246,243,238,.72);font-size:15px;transition:background .2s var(--ease),color .2s var(--ease),border-color .2s var(--ease);
}
.side-link i{width:20px;text-align:center;font-size:15px;flex:none;}
.side-link:hover{background:rgba(255,255,255,.07);color:#fff;}
.side-link.active{background:rgba(240,82,43,.16);border-left-color:var(--brand);color:#FFF4EF;font-weight:600;}
.side-foot{margin-top:auto;padding:18px 8px 4px;border-top:1px solid rgba(255,255,255,.08);}
.side-foot p{font-size:12.5px;line-height:1.75;color:rgba(246,243,238,.55);margin:0 0 14px;}
.side-cta{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;width:100%;
  padding:11px 16px;border-radius:var(--r-btn);background:var(--brand);color:#fff;
  font-size:14px;font-weight:600;transition:background .25s var(--ease),transform .25s var(--ease),box-shadow .25s var(--ease);
}
.side-cta:hover{background:var(--brand-dark);color:#fff;transform:translateY(-2px);box-shadow:0 12px 24px rgba(240,82,43,.32);}

.app-main{min-height:100vh;}

/* ---------- 移动端顶栏 ---------- */
.topbar{
  display:none;position:sticky;top:0;z-index:1020;height:64px;align-items:center;gap:12px;
  padding:0 16px;background:rgba(246,243,238,.94);backdrop-filter:blur(10px);
  border-bottom:1px solid var(--line);
}
.menu-btn{
  width:40px;height:40px;border:1px solid var(--line);border-radius:12px;background:#fff;
  color:var(--ink);display:inline-flex;align-items:center;justify-content:center;cursor:pointer;flex:none;
}
.menu-btn:hover{border-color:var(--brand);color:var(--brand);}
.topbar-brand{font-weight:800;font-size:17px;letter-spacing:-.01em;}
.topbar-cta{
  margin-left:auto;padding:9px 16px;border-radius:var(--r-btn);background:var(--brand);color:#fff;
  font-size:14px;font-weight:600;
}
.topbar-cta:hover{background:var(--brand-dark);color:#fff;}

/* ---------- 通用 ---------- */
.section{padding:72px 0 0;}
.section-head{max-width:720px;margin-bottom:34px;}
.eyebrow{
  display:inline-block;font-size:12.5px;font-weight:700;letter-spacing:.14em;
  color:var(--brand);margin-bottom:12px;
}
.section-head h2{font-size:clamp(1.5rem,3vw,2.1rem);font-weight:800;margin-bottom:14px;}
.section-head p{color:var(--ink-2);font-size:15.5px;}

.btn-main{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:14px 28px;border-radius:var(--r-btn);border:1.5px solid var(--brand);
  background:var(--brand);color:#fff;font-size:15px;font-weight:600;cursor:pointer;
  transition:background .25s var(--ease),transform .25s var(--ease),box-shadow .25s var(--ease),border-color .25s var(--ease);
}
.btn-main:hover{background:var(--brand-dark);border-color:var(--brand-dark);color:#fff;transform:translateY(-2px);box-shadow:0 14px 28px rgba(240,82,43,.3);}
.btn-main:active{transform:translateY(0);}
.btn-line{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:14px 28px;border-radius:var(--r-btn);border:1.5px solid var(--ink);
  background:transparent;color:var(--ink);font-size:15px;font-weight:600;cursor:pointer;
  transition:background .25s var(--ease),color .25s var(--ease),transform .25s var(--ease);
}
.btn-line:hover{background:var(--ink);color:#F6F3EE;transform:translateY(-2px);}
.btn-line.on-dark{border-color:rgba(246,243,238,.5);color:#F6F3EE;}
.btn-line.on-dark:hover{background:#F6F3EE;color:var(--ink);border-color:#F6F3EE;}
.link-more{
  position:relative;display:inline-flex;align-items:center;gap:6px;
  font-size:14.5px;font-weight:600;color:var(--ink);
}
.link-more::after{
  content:"";position:absolute;left:0;bottom:-3px;height:2px;width:0;background:var(--brand);
  transition:width .28s var(--ease);
}
.link-more:hover{color:var(--brand);}
.link-more:hover::after{width:100%;}
.link-more i{font-size:12px;transition:transform .28s var(--ease);}
.link-more:hover i{transform:translateX(4px);}

/* ---------- Hero ---------- */
.cat-hero{
  position:relative;margin-top:28px;border-radius:24px;overflow:hidden;
  min-height:440px;display:flex;align-items:flex-end;color:#F8F5F0;
  background-image:
    linear-gradient(180deg,rgba(20,21,24,.42) 0%,rgba(20,21,24,.80) 62%,rgba(20,21,24,.90) 100%),
    url('/assets/images/backpic/back-1.png');
  background-size:cover;background-position:center;
}
.cat-hero::after{
  content:"";position:absolute;right:-60px;top:-70px;width:300px;height:300px;border-radius:50%;
  background:radial-gradient(circle,rgba(240,82,43,.30),transparent 68%);
  pointer-events:none;
}
.cat-hero-inner{position:relative;z-index:2;padding:52px 48px;max-width:880px;}
.hero-badge{
  display:inline-flex;align-items:center;gap:8px;padding:7px 14px;border-radius:var(--r-pill);
  background:rgba(216,243,91,.16);border:1px solid rgba(216,243,91,.45);
  color:#E9F9AC;font-size:12.5px;font-weight:600;letter-spacing:.06em;margin-bottom:22px;
}
.cat-hero h1{
  font-size:clamp(2rem,5vw,3.6rem);font-weight:800;line-height:1.15;color:#fff;margin-bottom:16px;
}
.hero-sub{font-size:clamp(1.05rem,1.7vw,1.3rem);font-weight:600;color:rgba(248,245,240,.92);margin-bottom:12px;}
.hero-desc{font-size:15.5px;line-height:1.85;color:rgba(248,245,240,.72);max-width:640px;}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:30px;}
.hero-stats{
  display:flex;flex-wrap:wrap;gap:48px;margin-top:34px;padding-top:24px;
  border-top:1px solid rgba(255,255,255,.16);
}
.hero-stats li{display:flex;flex-direction:column;}
.stat-num{font-size:26px;font-weight:800;color:#fff;letter-spacing:-.01em;}
.stat-label{font-size:13px;color:rgba(248,245,240,.62);margin-top:2px;}

/* ---------- 锚点目录条 ---------- */
.anchor-bar{margin-top:22px;overflow-x:auto;}
.anchor-bar::-webkit-scrollbar{height:4px;}
.anchor-bar::-webkit-scrollbar-thumb{background:var(--line);border-radius:999px;}
.anchor-track{display:flex;gap:10px;min-width:max-content;padding:2px 2px 12px;}
.anchor-link{
  display:inline-block;padding:9px 16px;border-radius:var(--r-pill);background:#fff;
  border:1px solid var(--line);color:var(--ink-2);font-size:14px;white-space:nowrap;
  transition:color .22s var(--ease),border-color .22s var(--ease),box-shadow .22s var(--ease);
}
.anchor-link:hover{color:var(--brand);border-color:rgba(240,82,43,.4);}
.anchor-link.active{
  color:var(--brand);font-weight:600;border-color:rgba(240,82,43,.35);
  box-shadow:inset 0 -2px 0 var(--brand);
}

/* ---------- 两列交错卡片 ---------- */
.flow-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:28px;align-items:start;}
.flow-col{display:flex;flex-direction:column;gap:28px;}
.flow-col.offset{margin-top:56px;}
.flow-card{
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);
  overflow:hidden;display:flex;flex-direction:column;
  transition:transform .3s var(--ease),box-shadow .3s var(--ease),border-color .3s var(--ease);
}
.flow-card:hover{transform:translateY(-5px);box-shadow:var(--sh);border-color:#DED6CB;}
.flow-media{position:relative;aspect-ratio:16/9;overflow:hidden;background:#EFEAE3;}
.flow-media img{width:100%;height:100%;object-fit:cover;transition:transform .55s var(--ease);}
.flow-card:hover .flow-media img{transform:scale(1.04);}
.flow-badge{
  position:absolute;top:14px;left:14px;padding:6px 12px;border-radius:var(--r-pill);
  background:rgba(20,21,24,.78);color:#F8F5F0;font-size:12px;font-weight:600;letter-spacing:.04em;
  backdrop-filter:blur(4px);
}
.flow-badge.hot{background:rgba(216,243,91,.92);color:#3E4C0C;}
.flow-body{padding:22px 24px 24px;display:flex;flex-direction:column;flex:1 1 auto;}
.flow-body h3{font-size:19px;font-weight:700;margin-bottom:10px;}
.flow-body h3 a{color:var(--ink);}
.flow-body h3 a:hover{color:var(--brand);}
.flow-body p{font-size:14.5px;color:var(--ink-2);line-height:1.8;margin-bottom:18px;}
.flow-foot{margin-top:auto;}

/* ---------- 项目覆盖 ---------- */
.split{display:grid;grid-template-columns:1.15fr .85fr;gap:44px;align-items:start;}
.tag-cloud{display:flex;flex-wrap:wrap;gap:10px;margin-top:26px;}
.tag{
  display:inline-block;padding:9px 18px;border-radius:var(--r-pill);background:#fff;
  border:1px solid var(--line);color:var(--ink-2);font-size:14px;
  transition:border-color .22s var(--ease),color .22s var(--ease),transform .22s var(--ease);
}
.tag:hover{border-color:var(--brand);color:var(--brand);transform:translateY(-2px);}
.tag.hot{background:rgba(216,243,91,.35);border-color:rgba(216,243,91,.85);color:#42500D;}
.panel-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-card);padding:28px 26px;
}
.panel-card h3{font-size:17px;font-weight:700;margin-bottom:6px;}
.panel-card .panel-note{font-size:13.5px;color:var(--ink-3);margin-bottom:22px;}
.mini-stat{display:flex;flex-direction:column;gap:16px;}
.mini-stat li{display:grid;grid-template-columns:58px 1fr 52px;align-items:center;gap:12px;font-size:14px;color:var(--ink-2);}
.ms-bar{height:8px;border-radius:999px;background:#EFEAE3;overflow:hidden;}
.ms-bar i{display:block;height:100%;border-radius:999px;background:var(--green);}
.ms-val{text-align:right;font-weight:700;color:var(--ink);}

/* ---------- 步骤 ---------- */
.steps{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px;}
.step{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-card);padding:30px 26px;
  transition:transform .3s var(--ease),box-shadow .3s var(--ease);
}
.step:hover{transform:translateY(-4px);box-shadow:var(--sh);}
.step-num{
  display:inline-block;font-size:13px;font-weight:800;letter-spacing:.08em;color:var(--brand);
  padding:5px 12px;border-radius:var(--r-pill);background:rgba(240,82,43,.10);margin-bottom:18px;
}
.step h3{font-size:17.5px;font-weight:700;margin-bottom:10px;}
.step p{font-size:14.5px;color:var(--ink-2);}

/* ---------- FAQ ---------- */
.faq .accordion-item{background:transparent;border:0;border-bottom:1px solid var(--line);}
.faq .accordion-header{margin:0;font-size:inherit;}
.faq .accordion-button{
  position:relative;background:transparent;border:0;box-shadow:none;border-radius:0;
  padding:24px 48px 24px 0;font-size:17px;font-weight:700;color:var(--ink);
}
.faq .accordion-button:not(.collapsed){color:var(--brand);background:transparent;box-shadow:none;}
.faq .accordion-button:focus{box-shadow:none;border-color:transparent;}
.faq .accordion-button::after{
  content:"\f078";font-family:"Font Awesome 6 Free";font-weight:900;font-size:14px;
  background-image:none;width:auto;height:auto;position:absolute;right:10px;top:50%;
  transform:translateY(-50%);color:var(--ink-3);transition:transform .28s var(--ease),color .28s var(--ease);
}
.faq .accordion-button:not(.collapsed)::after{transform:translateY(-50%) rotate(180deg);color:var(--brand);}
.faq .accordion-body{padding:0 0 26px;color:var(--ink-2);font-size:15.5px;line-height:1.9;max-width:820px;}

/* ---------- CTA 带 ---------- */
.cta-band{
  background:var(--ink);color:#F6F3EE;border-radius:24px;padding:46px 48px;
  display:flex;align-items:center;justify-content:space-between;gap:36px;flex-wrap:wrap;
}
.cta-band h2{font-size:clamp(1.35rem,2.6vw,1.85rem);font-weight:800;color:#fff;margin-bottom:12px;}
.cta-band p{font-size:15px;color:rgba(246,243,238,.7);max-width:560px;}
.cta-actions{display:flex;gap:14px;flex-wrap:wrap;}

/* ---------- 页脚 ---------- */
.site-foot{background:var(--ink);color:rgba(246,243,238,.72);margin-top:88px;padding:68px 0 0;}
.foot-brand{display:flex;align-items:center;gap:10px;margin-bottom:16px;}
.site-foot h4{color:#F6F3EE;font-size:15px;font-weight:700;margin-bottom:18px;}
.site-foot p{font-size:14px;line-height:1.85;max-width:360px;}
.foot-links{display:flex;flex-direction:column;gap:11px;}
.foot-links a{color:rgba(246,243,238,.72);font-size:14.5px;}
.foot-links a:hover{color:var(--brand);}
.foot-contact{display:flex;flex-direction:column;gap:12px;font-size:14.5px;}
.foot-contact li{display:flex;gap:10px;align-items:flex-start;}
.foot-contact i{color:var(--brand);margin-top:6px;font-size:13px;}
.foot-bar{
  margin-top:48px;padding:20px 0 24px;border-top:1px solid rgba(255,255,255,.08);
  display:flex;justify-content:space-between;flex-wrap:wrap;gap:12px;
  font-size:13px;color:rgba(246,243,238,.5);
}

/* ---------- 动效 ---------- */
.reveal{opacity:0;transform:translateY(16px);transition:opacity .5s var(--ease),transform .5s var(--ease);}
.reveal.in{opacity:1;transform:none;}

/* ---------- 断点 ---------- */
@media (min-width:992px){
  .app-main{margin-left:var(--side-w);}
  #sideNav.app-side{
    position:fixed !important;top:0 !important;left:0 !important;bottom:0 !important;right:auto !important;
    width:var(--side-w) !important;max-width:none !important;height:auto !important;
    background-color:var(--ink) !important;background-clip:border-box !important;
    visibility:visible !important;transform:none !important;opacity:1 !important;
    border:0 !important;border-right:1px solid rgba(255,255,255,.06) !important;
    z-index:1030 !important;display:flex !important;flex-direction:column !important;
    transition:width .25s var(--ease) !important;
  }
}
@media (min-width:1200px){
  #sideNav.app-side{width:232px !important;}
  .app-main{margin-left:232px;}
}
@media (min-width:992px) and (max-width:1199.98px){
  .app-main{margin-left:84px;}
  #sideNav.app-side{width:84px !important;}
  .side-inner{padding:20px 10px 16px;overflow:visible;}
  .brand-text{display:none;}
  .side-head{justify-content:center;padding:2px 0 16px;}
  .side-link{justify-content:center;padding:0 6px;border-left-width:3px;}
  .side-link span{
    position:absolute;left:calc(100% + 10px);top:50%;transform:translateY(-50%);
    background:var(--ink);color:#F6F3EE;padding:6px 12px;border-radius:8px;font-size:13px;
    white-space:nowrap;opacity:0;visibility:hidden;pointer-events:none;z-index:20;
    box-shadow:0 10px 24px rgba(0,0,0,.28);transition:opacity .2s var(--ease);
  }
  .side-link:hover span{opacity:1;visibility:visible;}
  .side-group-title{font-size:10px;letter-spacing:.04em;text-align:center;margin:16px 0 8px;}
  .side-foot p{display:none;}
  .side-cta{font-size:12px;padding:9px 6px;}
}
@media (max-width:991.98px){
  .app-main{margin-left:0;}
  .topbar{display:flex;}
  .app-side .side-close{display:inline-flex;}
  .shell{padding:0 18px;}
  .cat-hero-inner{padding:38px 26px;}
  .cta-band{padding:34px 26px;}
  .split{grid-template-columns:1fr;gap:30px;}
  .section{padding:56px 0 0;}
  [id]{scroll-margin-top:84px;}
}
@media (max-width:767.98px){
  .flow-grid{grid-template-columns:1fr;gap:22px;}
  .flow-col.offset{margin-top:0;}
  .steps{grid-template-columns:1fr;gap:18px;}
  .cat-hero{min-height:0;margin-top:18px;border-radius:18px;}
  .cat-hero-inner{padding:32px 20px;}
  .hero-stats{gap:26px;margin-top:26px;}
  .stat-num{font-size:22px;}
  .site-foot{margin-top:64px;padding-top:52px;}
  .faq .accordion-button{font-size:15.5px;padding:20px 40px 20px 0;}
}
@media (max-width:520px){
  .hero-actions{flex-direction:column;align-items:stretch;}
  .hero-actions .btn-main,.hero-actions .btn-line{width:100%;}
  .cta-actions{flex-direction:column;align-items:stretch;}
  .cta-actions .btn-main,.cta-actions .btn-line{width:100%;}
  .section-head h2{font-size:1.4rem;}
  .flow-body{padding:18px 18px 20px;}
  .panel-card{padding:22px 18px;}
  .mini-stat li{grid-template-columns:52px 1fr 44px;gap:10px;}
}
@media (prefers-reduced-motion:reduce){
  .reveal{opacity:1 !important;transform:none !important;transition:none !important;}
  html{scroll-behavior:auto;}
}

/* roulang page: category2 */
:root{
  --orange:#F0522B;
  --orange-d:#D8411C;
  --green:#147A5C;
  --lime:#D8F35B;
  --ink:#141518;
  --bg:#F6F3EE;
  --card:#FFFFFF;
  --line:#E7E1D8;
  --t1:#141518;
  --t2:#565B62;
  --t3:#8C9199;
  --r-card:18px;
  --r-img:16px;
  --r-btn:12px;
  --sh-hover:0 18px 40px rgba(20,21,24,.10);
  --side:232px;
  --ease:cubic-bezier(.22,.61,.36,1);
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--bg);
  color:var(--t1);
  font-family:"PingFang SC","Microsoft YaHei","Source Han Sans SC",system-ui,-apple-system,"Helvetica Neue",Arial,sans-serif;
  font-size:16px;
  line-height:1.85;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{max-width:100%;height:auto;display:block;}
a{color:inherit;text-decoration:none;transition:color .25s var(--ease);}
a:hover{color:var(--orange);}
button,input{font-family:inherit;font-size:inherit;}
h1,h2,h3,h4{margin:0;line-height:1.25;font-weight:700;letter-spacing:-.01em;}
p{margin:0;}
ul,ol{margin:0;padding:0;list-style:none;}
.num,.stat-num,.idx-no,.step-no{font-variant-numeric:tabular-nums;}
:focus-visible{outline:2px solid var(--orange);outline-offset:2px;border-radius:6px;}
.shell{width:100%;max-width:1240px;margin:0 auto;padding:0 24px;}

/* ---------- 左侧 App Shell ---------- */
.side-shell{
  position:fixed;left:0;top:0;bottom:0;width:var(--side);
  background:var(--ink);color:#F6F3EE;z-index:1040;
  display:flex;flex-direction:column;
  padding:24px 16px 20px;
  overflow-y:auto;
  transition:width .25s var(--ease);
}
.side-brand{
  display:flex;align-items:center;gap:10px;
  padding:4px 10px 20px;color:#F6F3EE;font-weight:800;font-size:18px;
}
.side-brand:hover{color:#fff;}
.brand-mark{
  position:relative;width:22px;height:22px;flex:0 0 22px;border-radius:6px;
  background:var(--orange);
}
.brand-mark::after{
  content:"";position:absolute;inset:6px;border-radius:2px;background:var(--lime);
}
.side-nav{display:flex;flex-direction:column;gap:4px;width:100%;}
.side-group-title{
  font-size:12px;letter-spacing:.12em;color:#8C9199;
  padding:18px 12px 8px;
}
.side-link{
  position:relative;display:flex;align-items:center;gap:12px;
  height:44px;padding:0 12px;border-radius:10px;
  color:#B9BDC4;font-size:15px;
  transition:background .25s var(--ease),color .25s var(--ease);
}
.side-link i{width:20px;flex:0 0 20px;text-align:center;font-size:16px;}
.side-link:hover{background:rgba(255,255,255,.07);color:#F6F3EE;}
.side-link.active{background:rgba(255,255,255,.09);color:#fff;}
.side-link.active::before{
  content:"";position:absolute;left:-12px;top:10px;bottom:10px;width:3px;
  border-radius:0 3px 3px 0;background:var(--orange);
}
.side-foot{
  margin-top:auto;padding:16px;border-radius:14px;
  background:rgba(255,255,255,.05);border:1px solid rgba(255,255,255,.08);
}
.side-foot p{font-size:13px;line-height:1.65;color:#B9BDC4;margin-bottom:12px;}

/* ---------- 顶部栏与抽屉（移动端） ---------- */
.topbar{
  display:none;position:fixed;top:0;left:0;right:0;height:64px;z-index:1030;
  background:var(--ink);color:#F6F3EE;
  align-items:center;justify-content:space-between;padding:0 16px;
}
.topbar-brand{display:flex;align-items:center;gap:10px;color:#F6F3EE;font-weight:800;font-size:17px;}
.topbar-brand:hover{color:#fff;}
.topbar-btn{
  width:42px;height:42px;border:0;border-radius:12px;cursor:pointer;
  background:rgba(255,255,255,.09);color:#F6F3EE;font-size:17px;
  transition:background .25s var(--ease);
}
.topbar-btn:hover{background:rgba(255,255,255,.18);}
.offcanvas.drawer{background:var(--ink);color:#F6F3EE;width:288px;border-right:0;}
.drawer .offcanvas-header{border-bottom:1px solid rgba(255,255,255,.08);padding:18px 20px;}
.drawer .drawer-title{font-weight:800;font-size:17px;color:#fff;}
.drawer .offcanvas-body{padding:18px 16px;}
.drawer .btn-close{filter:invert(1) grayscale(1) brightness(2);opacity:.7;}
.drawer .side-link.active::before{left:-16px;}

/* ---------- 页面主体 ---------- */
.page-shell{margin-left:var(--side);min-height:100vh;}

/* ---------- 矮首屏 ---------- */
.compact-hero{
  background:var(--bg);border-bottom:1px solid var(--line);
  padding:60px 0 40px;min-height:240px;display:flex;align-items:center;
}
.eyebrow{
  display:inline-flex;align-items:center;gap:10px;
  font-size:13px;font-weight:700;letter-spacing:.08em;color:var(--orange);
  margin-bottom:16px;
}
.eyebrow::before{content:"";width:22px;height:2px;border-radius:2px;background:var(--orange);}
.compact-hero h1{
  font-size:clamp(1.85rem,3.4vw,2.85rem);
  line-height:1.18;max-width:26ch;
}
.hero-lead{margin-top:16px;font-size:16px;color:var(--t2);max-width:72ch;}
.hero-lead + .hero-lead{margin-top:6px;}
.hero-meta{display:flex;flex-wrap:wrap;gap:10px;margin-top:22px;}
.chip{
  display:inline-flex;align-items:center;gap:6px;
  font-size:13px;color:var(--t2);
  background:#fff;border:1px solid var(--line);border-radius:999px;padding:5px 14px;
}
.chip i{font-size:11px;color:var(--green);}

/* ---------- 板块 ---------- */
.section{padding:84px 0;}
.section-alt{background:#fff;border-top:1px solid var(--line);border-bottom:1px solid var(--line);}
.section-head{
  display:flex;align-items:flex-end;justify-content:space-between;
  gap:24px;flex-wrap:wrap;margin-bottom:36px;
}
.section-head h2{font-size:clamp(1.5rem,2.2vw,2.1rem);}
.section-head .head-desc{font-size:15px;color:var(--t2);max-width:52ch;}
.section-head.center{flex-direction:column;align-items:flex-start;}

/* ---------- 按钮与文字链 ---------- */
.btn-main{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  background:var(--orange);border:1.5px solid var(--orange);color:#fff;
  padding:13px 26px;border-radius:var(--r-btn);
  font-size:15px;font-weight:600;cursor:pointer;
  transition:background .25s var(--ease),border-color .25s var(--ease),
             transform .25s var(--ease),box-shadow .25s var(--ease),color .25s var(--ease);
}
.btn-main:hover{
  background:var(--orange-d);border-color:var(--orange-d);color:#fff;
  transform:translateY(-2px);box-shadow:0 14px 30px rgba(240,82,43,.30);
}
.btn-main:active{transform:translateY(0);box-shadow:none;}
.btn-ghost{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  background:transparent;border:1.5px solid var(--ink);color:var(--ink);
  padding:13px 26px;border-radius:var(--r-btn);
  font-size:15px;font-weight:600;cursor:pointer;
  transition:background .25s var(--ease),color .25s var(--ease),transform .25s var(--ease);
}
.btn-ghost:hover{background:var(--ink);color:#fff;transform:translateY(-2px);}
.btn-sm{padding:9px 16px;font-size:14px;border-radius:10px;}
.btn-block{display:flex;width:100%;}
.text-link{
  display:inline-flex;align-items:center;gap:6px;font-weight:600;color:var(--ink);
  padding-bottom:3px;
  background-image:linear-gradient(currentColor,currentColor),linear-gradient(var(--orange),var(--orange));
  background-repeat:no-repeat;
  background-position:0 100%,0 100%;
  background-size:100% 1px,0 2px;
  transition:background-size .35s var(--ease),color .25s var(--ease);
}
.text-link:hover{color:var(--orange);background-size:100% 1px,100% 2px;}
.text-link i{font-size:12px;}

/* ---------- 索引列表 + 侧栏 ---------- */
.layout-row{display:grid;grid-template-columns:minmax(0,8fr) minmax(0,4fr);gap:40px;}
.index-list{border-top:1px solid var(--line);}
.index-item{
  display:grid;grid-template-columns:56px minmax(0,1fr) auto;
  gap:18px;align-items:start;
  padding:20px 12px;border-bottom:1px solid var(--line);
  transition:background .28s var(--ease),box-shadow .28s var(--ease);
}
.index-item:hover{background:#fff;box-shadow:inset 3px 0 0 var(--orange);}
.idx-no{font-size:14px;font-weight:800;letter-spacing:.06em;color:var(--orange);padding-top:5px;}
.idx-body h3{font-size:18px;margin-bottom:6px;}
.idx-body h3 a{color:var(--t1);}
.idx-body h3 a:hover{color:var(--orange);}
.idx-body p{font-size:14.5px;line-height:1.72;color:var(--t2);}
.idx-tag{
  align-self:start;margin-top:4px;white-space:nowrap;
  font-size:12px;font-weight:600;color:var(--green);
  background:rgba(20,122,92,.09);border-radius:999px;padding:4px 12px;
}
.side-card{
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);
  padding:24px;margin-bottom:24px;
}
.side-card h3{font-size:16px;display:flex;align-items:center;gap:8px;margin-bottom:14px;}
.side-card h3 i{font-size:14px;color:var(--orange);}
.entry-list li + li{border-top:1px solid var(--line);}
.entry-list a{
  display:flex;align-items:center;justify-content:space-between;gap:12px;
  padding:12px 0;font-size:14.5px;color:var(--t2);
}
.entry-list a:hover{color:var(--orange);}
.entry-list a i{font-size:12px;color:var(--t3);}
.side-thumb{border-radius:12px;overflow:hidden;margin-bottom:16px;border:1px solid var(--line);}
.side-thumb img{width:100%;aspect-ratio:16/9;object-fit:cover;transition:transform .5s var(--ease);}
.side-card:hover .side-thumb img{transform:scale(1.04);}
.side-note{font-size:14px;color:var(--t2);line-height:1.75;}
.sub-card{
  background:var(--ink);color:#F6F3EE;border-radius:var(--r-card);padding:24px;
}
.sub-card h3{color:#fff;font-size:16px;margin-bottom:10px;}
.sub-card p{font-size:14px;color:#B9BDC4;line-height:1.72;margin-bottom:16px;}

/* ---------- 覆盖能力数据条 ---------- */
.stat-strip{
  display:grid;grid-template-columns:repeat(4,1fr);gap:1px;
  background:var(--line);border:1px solid var(--line);
  border-radius:var(--r-card);overflow:hidden;
}
.stat-item{background:var(--card);padding:26px 24px;}
.stat-num{
  display:block;font-size:clamp(1.7rem,2.6vw,2.3rem);
  font-weight:800;letter-spacing:-.02em;color:var(--ink);
}
.stat-num em{font-style:normal;font-size:.5em;color:var(--green);margin-left:4px;font-weight:700;}
.stat-label{margin-top:6px;font-size:14px;color:var(--t2);}

/* ---------- 卡片网格 ---------- */
.card-grid{display:grid;gap:24px;}
.grid-4{grid-template-columns:repeat(4,minmax(0,1fr));}
.grid-3{grid-template-columns:repeat(3,minmax(0,1fr));}
.p-card{
  height:100%;background:var(--card);border:1px solid var(--line);
  border-radius:var(--r-card);padding:26px;
  transition:transform .3s var(--ease),box-shadow .3s var(--ease),border-color .3s var(--ease);
}
.p-card:hover{transform:translateY(-4px);box-shadow:var(--sh-hover);border-color:transparent;}
.p-ico{
  width:44px;height:44px;border-radius:12px;margin-bottom:16px;
  display:flex;align-items:center;justify-content:center;
  background:rgba(240,82,43,.10);color:var(--orange);font-size:18px;
}
.p-card h3{font-size:18px;margin-bottom:10px;}
.p-card p{font-size:14.5px;color:var(--t2);line-height:1.75;}
.p-card .p-tag{
  display:inline-block;margin-top:16px;font-size:12px;font-weight:700;
  color:var(--ink);background:var(--lime);border-radius:999px;padding:4px 12px;
}

/* ---------- 图文分区 ---------- */
.split{display:grid;grid-template-columns:1fr 1fr;gap:52px;align-items:center;}
.split-media{
  border-radius:var(--r-img);overflow:hidden;border:1px solid var(--line);
  background:#fff;
}
.split-media img{
  width:100%;aspect-ratio:4/3;object-fit:cover;
  transition:transform .5s var(--ease);
}
.split-media:hover img{transform:scale(1.04);}
.split-body h2{font-size:clamp(1.5rem,2.2vw,2.05rem);margin-bottom:16px;}
.split-body > p{font-size:15.5px;color:var(--t2);line-height:1.85;}
.pt-list{margin:22px 0 26px;display:flex;flex-direction:column;gap:12px;}
.pt-list li{display:flex;gap:10px;font-size:15px;color:var(--t2);line-height:1.7;}
.pt-list li i{color:var(--green);font-size:13px;margin-top:6px;flex:0 0 14px;}
.pt-list li strong{color:var(--t1);font-weight:700;}

/* ---------- 流程 ---------- */
.steps{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:24px;}
.step{
  padding:24px 22px;border-radius:var(--r-card);
  background:var(--card);border:1px solid var(--line);
  transition:transform .3s var(--ease),box-shadow .3s var(--ease);
}
.step:hover{transform:translateY(-4px);box-shadow:var(--sh-hover);}
.step-no{display:block;font-size:13px;font-weight:800;letter-spacing:.08em;color:var(--orange);margin-bottom:10px;}
.step h3{font-size:17px;margin-bottom:8px;}
.step p{font-size:14.5px;color:var(--t2);line-height:1.72;}

/* ---------- FAQ ---------- */
.faq-wrap{max-width:880px;}
.faq-acc .accordion-item{background:transparent;border:0;border-bottom:1px solid var(--line);}
.faq-acc .accordion-item:first-child{border-top:1px solid var(--line);}
.faq-acc .accordion-button{
  background:transparent;box-shadow:none;border:0;
  padding:22px 4px;font-size:17px;font-weight:700;color:var(--t1);
  display:flex;align-items:center;gap:16px;
}
.faq-acc .accordion-button:not(.collapsed){color:var(--orange);background:transparent;box-shadow:none;}
.faq-acc .accordion-button:focus{box-shadow:none;outline:2px solid var(--orange);outline-offset:-2px;}
.faq-acc .accordion-button::after{
  content:"";width:10px;height:10px;margin-left:auto;flex:0 0 10px;
  background-image:none;border-right:2px solid var(--t3);border-bottom:2px solid var(--t3);
  transform:rotate(45deg);transition:transform .3s var(--ease),border-color .3s var(--ease);
}
.faq-acc .accordion-button:not(.collapsed)::after{
  transform:rotate(-135deg);border-color:var(--orange);
}
.faq-acc .accordion-body{padding:0 4px 24px;font-size:15px;color:var(--t2);line-height:1.85;}

/* ---------- 订阅 CTA ---------- */
.cta-band{position:relative;background:var(--ink);color:#F6F3EE;overflow:hidden;padding:78px 0;}
.cta-bg{
  position:absolute;inset:0;opacity:.16;
  background:url('/assets/images/backpic/back-3.webp') center/cover no-repeat;
}
.cta-band .shell{position:relative;z-index:2;}
.cta-inner{display:grid;grid-template-columns:1.05fr .95fr;gap:44px;align-items:center;}
.cta-band h2{color:#fff;font-size:clamp(1.5rem,2.4vw,2.05rem);margin-bottom:12px;}
.cta-band p{color:#B9BDC4;font-size:15px;line-height:1.8;}
.sub-form{display:flex;flex-wrap:wrap;gap:12px;}
.sub-input{
  flex:1 1 240px;min-width:0;
  background:rgba(255,255,255,.06);
  border:1px solid rgba(255,255,255,.18);
  color:#fff;border-radius:12px;padding:13px 16px;font-size:15px;
  transition:border-color .25s var(--ease),background .25s var(--ease),box-shadow .25s var(--ease);
}
.sub-input::placeholder{color:#8C9199;}
.sub-input:focus{
  outline:none;border-color:var(--orange);
  background:rgba(255,255,255,.10);box-shadow:0 0 0 2px rgba(240,82,43,.35);
}
.form-tip{flex:1 1 100%;margin-top:4px;font-size:13px;color:#8C9199;}
.form-tip.is-error{color:#FF8A6A;}
.form-tip.is-ok{color:#7FD8B8;}

/* ---------- 页脚 ---------- */
.site-foot{background:var(--ink);color:#B9BDC4;font-size:14px;padding:72px 0 0;}
.site-foot h4{color:#fff;font-size:15px;letter-spacing:.02em;margin-bottom:16px;}
.foot-brand{display:flex;align-items:center;gap:10px;margin-bottom:16px;}
.foot-brand .brand-text{color:#fff;font-weight:800;font-size:18px;}
.site-foot p{color:#B9BDC4;line-height:1.8;max-width:38ch;}
.foot-links li{margin-bottom:10px;}
.foot-links a{color:#B9BDC4;}
.foot-links a:hover{color:var(--orange);}
.foot-contact li{display:flex;gap:10px;margin-bottom:12px;line-height:1.7;}
.foot-contact i{color:var(--orange);font-size:13px;margin-top:6px;flex:0 0 14px;}
.foot-bar{
  display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;
  border-top:1px solid rgba(255,255,255,.08);
  margin-top:56px;padding:20px 0 26px;
  font-size:13px;color:#8C9199;
}

/* ---------- 动效 ---------- */
html.anim .fade-up{
  opacity:0;transform:translateY(18px);
  transition:opacity .5s var(--ease),transform .5s var(--ease);
}
html.anim .fade-up.in{opacity:1;transform:none;}

/* ---------- 响应式 ---------- */
@media (min-width:992px) and (max-width:1199.98px){
  :root{--side:84px;}
  .side-shell{padding:20px 10px;align-items:center;overflow:visible;}
  .side-brand{padding:4px 0 18px;justify-content:center;}
  .side-brand .brand-text{display:none;}
  .side-group-title{display:none;}
  .side-foot{display:none;}
  .side-link{justify-content:center;padding:0;}
  .side-link span{display:none;}
  .side-link.active::before{left:-10px;}
  .side-link:hover span,
  .side-link:focus-visible span{
    display:block;position:absolute;left:calc(100% + 14px);top:50%;
    transform:translateY(-50%);white-space:nowrap;z-index:30;
    background:var(--ink);color:#F6F3EE;font-size:13px;
    padding:6px 12px;border-radius:8px;
    border:1px solid rgba(255,255,255,.1);
    box-shadow:0 12px 28px rgba(0,0,0,.30);
  }
}
@media (max-width:1199.98px){
  .layout-row{grid-template-columns:1fr;gap:32px;}
  .grid-4{grid-template-columns:repeat(2,minmax(0,1fr));}
  .stat-strip{grid-template-columns:repeat(2,1fr);}
  .steps{grid-template-columns:repeat(2,minmax(0,1fr));}
}
@media (max-width:991.98px){
  .topbar{display:flex;}
  .side-shell{display:none;}
  .page-shell{margin-left:0;padding-top:64px;}
  .section{padding:64px 0;}
  .compact-hero{padding:40px 0 32px;min-height:auto;}
  .split{grid-template-columns:1fr;gap:32px;}
  .cta-inner{grid-template-columns:1fr;gap:28px;}
}
@media (max-width:767.98px){
  .shell{padding:0 18px;}
  .section{padding:56px 0;}
  .section-head{margin-bottom:26px;}
  .grid-3{grid-template-columns:1fr;}
  .index-item{grid-template-columns:44px minmax(0,1fr);gap:12px;padding:18px 8px;}
  .idx-tag{grid-column:2;justify-self:start;margin-top:8px;}
  .stat-item{padding:22px 18px;}
  .site-foot{padding-top:56px;}
  .foot-bar{margin-top:40px;}
}
@media (max-width:519.98px){
  .grid-4,.steps{grid-template-columns:1fr;}
  .btn-main,.btn-ghost{width:100%;}
  .cta-band{padding:60px 0;}
}
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto;}
  *,*::before,*::after{
    animation-duration:.001ms !important;
    animation-iteration-count:1 !important;
    transition-duration:.001ms !important;
  }
  html.anim .fade-up{opacity:1;transform:none;}
}