/* roulang page: index */
/* =========================================================
   设计令牌
   ========================================================= */
:root{
  --c-primary:#19E39B;
  --c-primary-soft:rgba(25,227,155,.10);
  --c-primary-soft-2:rgba(25,227,155,.06);
  --c-primary-line:rgba(25,227,155,.35);
  --c-primary-text:#5BF0BC;
  --c-accent:#FFB020;
  --c-accent-soft:rgba(255,176,32,.12);
  --c-alert:#FF5A7A;
  --c-alert-soft:rgba(255,90,122,.10);

  --c-bg:#0A0E14;
  --c-bg-deep:#070A0F;
  --c-surface:#121821;
  --c-surface-2:#1A2330;
  --c-line:rgba(255,255,255,.08);
  --c-line-strong:rgba(255,255,255,.14);

  --c-text:#E9F1F7;
  --c-muted:#8FA0B3;
  --c-dim:#6C7C8E;

  --r-sm:8px;
  --r-md:14px;
  --r-lg:20px;
  --r-pill:999px;

  --sp-1:8px;
  --sp-2:12px;
  --sp-3:16px;
  --sp-4:20px;
  --sp-5:24px;
  --sp-6:32px;
  --sp-7:44px;
  --sp-8:72px;

  --shadow-hover:0 14px 34px rgba(0,0,0,.38);
  --shadow-panel:0 20px 46px rgba(0,0,0,.45);

  --sidebar-w:248px;
  --topbar-h:56px;
  --container:1200px;

  --tr:200ms ease;
  --tr-fast:140ms ease;
}

/* =========================================================
   基础重置
   ========================================================= */
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  padding:0;
  font-family:"PingFang SC","Microsoft YaHei","Source Han Sans SC","Noto Sans SC",-apple-system,BlinkMacSystemFont,"Helvetica Neue",Arial,sans-serif;
  font-size:16px;
  line-height:1.9;
  color:var(--c-text);
  background-color:var(--c-bg);
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
body::before{
  content:"";
  position:fixed;
  inset:0;
  background-image:
    linear-gradient(rgba(255,255,255,.035) 1px,transparent 1px),
    linear-gradient(90deg,rgba(255,255,255,.035) 1px,transparent 1px);
  background-size:64px 64px;
  pointer-events:none;
  z-index:0;
}
h1,h2,h3,h4,h5,h6,p,ul,ol,figure,blockquote{margin:0;padding:0;}
ul,ol{list-style:none;}
img{max-width:100%;height:auto;display:block;border-style:none;}
a{color:var(--c-text);text-decoration:none;transition:color var(--tr),background-color var(--tr),border-color var(--tr),transform var(--tr);}
a:hover{color:var(--c-primary-text);text-decoration:underline;text-underline-offset:4px;}
a:focus-visible,button:focus-visible,input:focus-visible,select:focus-visible,textarea:focus-visible{
  outline:2px solid var(--c-primary);
  outline-offset:2px;
}
button{background:none;border:none;cursor:pointer;font:inherit;color:inherit;}
strong,b{font-weight:700;}
em{font-style:normal;}
::selection{background:rgba(25,227,155,.28);color:#ffffff;}

/* =========================================================
   Foundation 覆盖
   ========================================================= */
body,.button,.accordion,.accordion-title,.accordion-content,input,select,textarea{
  font-family:"PingFang SC","Microsoft YaHei","Source Han Sans SC","Noto Sans SC",sans-serif;
}
.grid-x{margin-left:-12px;margin-right:-12px;}
.grid-x>.cell{padding-left:12px;padding-right:12px;}
.button{
  display:inline-flex;align-items:center;justify-content:center;
  height:48px;padding:0 24px;margin:0;
  border-radius:var(--r-md);border:1px solid transparent;
  font-size:15px;font-weight:600;letter-spacing:.01em;
  background:var(--c-primary);color:#06131B;
  transition:transform var(--tr-fast),background-color var(--tr-fast),border-color var(--tr-fast),color var(--tr-fast);
}
.button:hover{background:#2BF0A9;color:#06131B;transform:translateY(-1px);text-decoration:none;}
.button.hollow{background:transparent;border-color:var(--c-line-strong);color:var(--c-primary-text);}
.button.hollow:hover{border-color:var(--c-primary);background:var(--c-primary-soft-2);color:var(--c-primary-text);}
.accordion{border:none;background:transparent;margin:0;}
.accordion-item{border:none;border-top:1px solid var(--c-line);background:transparent;}
.accordion-title{
  position:relative;
  display:flex;align-items:center;
  min-height:56px;padding:16px 44px 16px 0;
  border:none;background:transparent;
  font-size:16px;font-weight:600;color:var(--c-text);line-height:1.6;
}
.accordion-title:hover{background:transparent;color:var(--c-primary-text);text-decoration:none;}
.accordion-title::before,.accordion-title::after{
  content:"";position:absolute;right:10px;top:50%;
  background:var(--c-primary);border-radius:2px;
  transition:transform var(--tr),opacity var(--tr);
}
.accordion-title::before{width:14px;height:2px;transform:translateY(-50%);}
.accordion-title::after{width:2px;height:14px;transform:translateY(-50%);}
.accordion-item.is-active .accordion-title::after{transform:translateY(-50%) scaleY(0);opacity:0;}
.accordion-item.is-active .accordion-title{color:var(--c-primary-text);}
.accordion-content{
  display:none;padding:0 0 24px;
  border:none;background:transparent;
  font-size:15px;line-height:1.85;color:var(--c-muted);
}
.accordion-content p{margin:0 0 12px;}
.accordion-content p:last-child{margin-bottom:0;}
.accordion-content ul{margin:8px 0 0;padding-left:0;}
.accordion-content li{position:relative;padding-left:18px;margin-bottom:8px;}
.accordion-content li::before{
  content:"";position:absolute;left:0;top:12px;
  width:6px;height:6px;border-radius:50%;background:var(--c-primary);opacity:.8;
}
.no-js .accordion-content{display:block !important;}
.no-js .accordion-title::before,.no-js .accordion-title::after{display:none;}

/* =========================================================
   容器与通用板块
   ========================================================= */
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 24px;}
.section{position:relative;padding:var(--sp-8) 0;z-index:1;}
.section+.section{border-top:1px solid var(--c-line);}
.section-head{margin-bottom:var(--sp-6);}
.section-no{
  display:inline-block;
  font-size:13px;font-weight:700;letter-spacing:.14em;
  color:var(--c-primary);font-variant-numeric:tabular-nums;
  margin-bottom:10px;
}
.section-head h2{font-size:30px;line-height:1.3;font-weight:700;letter-spacing:-.02em;}
.section-head .rule{display:block;width:44px;height:2px;background:var(--c-primary);margin-top:16px;}
.section-sub{margin-top:14px;font-size:15px;line-height:1.85;color:var(--c-muted);max-width:720px;}
.section-head-row{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;flex-wrap:wrap;}

.badge{
  display:inline-flex;align-items:center;gap:6px;
  height:24px;padding:0 10px;border-radius:var(--r-pill);
  font-size:12px;font-weight:600;letter-spacing:.02em;
  background:var(--c-primary-soft);color:var(--c-primary-text);
}
.badge-accent{background:var(--c-accent-soft);color:var(--c-accent);}
.badge-alert{background:var(--c-alert-soft);color:var(--c-alert);}

.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 24px;border-radius:var(--r-md);
  font-size:15px;font-weight:600;white-space:nowrap;
  border:1px solid transparent;cursor:pointer;
  transition:transform var(--tr-fast),background-color var(--tr-fast),border-color var(--tr-fast),color var(--tr-fast);
}
.btn-primary{background:var(--c-primary);color:#06131B;}
.btn-primary:hover{background:#2BF0A9;color:#06131B;transform:translateY(-1px);text-decoration:none;}
.btn-primary:active{transform:translateY(0);background:#12CE8A;}
.btn-ghost{background:transparent;border-color:var(--c-line-strong);color:var(--c-primary-text);}
.btn-ghost:hover{border-color:var(--c-primary);background:var(--c-primary-soft-2);color:var(--c-primary-text);text-decoration:none;}
.btn-block{width:100%;}
.text-link{
  display:inline-flex;align-items:center;gap:8px;
  font-size:14px;font-weight:600;color:var(--c-primary-text);
}
.text-link:hover{color:var(--c-primary);text-decoration:underline;text-underline-offset:4px;}
.text-link i{font-size:12px;transition:transform var(--tr);}
.text-link:hover i{transform:translateX(3px);}

/* =========================================================
   移动端顶栏
   ========================================================= */
.mobile-topbar{
  position:fixed;top:0;left:0;right:0;height:var(--topbar-h);
  display:none;align-items:center;gap:12px;
  padding:0 14px;z-index:90;
  background:rgba(10,14,20,.96);
  border-bottom:1px solid var(--c-line);
  backdrop-filter:saturate(140%) blur(6px);
}
.hamburger{
  width:40px;height:40px;display:flex;flex-direction:column;justify-content:center;gap:5px;
  padding:0 8px;border-radius:var(--r-sm);
}
.hamburger:hover{background:rgba(255,255,255,.05);}
.hamburger span{display:block;height:2px;width:100%;background:var(--c-text);border-radius:2px;transition:transform var(--tr),opacity var(--tr);}
.mobile-topbar.is-open .hamburger span:nth-child(1){transform:translateY(7px) rotate(45deg);}
.mobile-topbar.is-open .hamburger span:nth-child(2){opacity:0;}
.mobile-topbar.is-open .hamburger span:nth-child(3){transform:translateY(-7px) rotate(-45deg);}
.mobile-logo{font-size:15px;font-weight:700;color:var(--c-text);letter-spacing:-.01em;}
.mobile-logo:hover{text-decoration:none;color:var(--c-primary-text);}
.mobile-cta{
  margin-left:auto;height:36px;padding:0 14px;border-radius:var(--r-sm);
  display:inline-flex;align-items:center;font-size:13px;font-weight:600;
  background:var(--c-primary-soft);color:var(--c-primary-text);border:1px solid var(--c-primary-line);
}
.mobile-cta:hover{background:rgba(25,227,155,.18);color:var(--c-primary-text);text-decoration:none;}

/* =========================================================
   侧栏 App Shell
   ========================================================= */
.app-sidebar{
  position:fixed;top:0;left:0;bottom:0;width:var(--sidebar-w);
  display:flex;flex-direction:column;
  background:var(--c-surface);
  border-right:1px solid var(--c-line);
  overflow-y:auto;z-index:80;
}
.sidebar-brand{
  height:72px;flex:0 0 72px;display:flex;align-items:center;
  padding:0 20px;border-bottom:1px solid var(--c-line);
}
.brand-link{display:flex;align-items:center;gap:12px;}
.brand-link:hover{text-decoration:none;}
.brand-mark{
  width:34px;height:34px;flex:0 0 34px;border-radius:10px;
  display:flex;align-items:center;justify-content:center;
  background:var(--c-primary-soft);color:var(--c-primary);font-size:15px;
  border:1px solid var(--c-primary-line);
}
.brand-text{display:flex;flex-direction:column;line-height:1.35;min-width:0;}
.brand-text strong{font-size:15px;font-weight:700;color:var(--c-text);letter-spacing:-.01em;white-space:nowrap;}
.brand-text small{font-size:11px;color:var(--c-dim);letter-spacing:.02em;white-space:nowrap;}
.sidebar-nav{padding:16px 12px;display:flex;flex-direction:column;gap:2px;}
.nav-item{
  position:relative;display:flex;align-items:center;
  height:44px;padding-left:20px;padding-right:12px;
  border-radius:0 var(--r-sm) var(--r-sm) 0;
  font-size:15px;color:var(--c-muted);
  transition:background-color var(--tr),color var(--tr);
}
.nav-item::before{
  content:"";position:absolute;left:0;top:9px;bottom:9px;width:3px;
  background:transparent;border-radius:0 3px 3px 0;transition:background-color var(--tr);
}
.nav-item:hover{background:rgba(255,255,255,.04);color:var(--c-text);text-decoration:none;}
.nav-item.is-active{background:var(--c-primary-soft);color:var(--c-primary-text);font-weight:600;}
.nav-item.is-active::before{background:var(--c-primary);}
.nav-sep{height:1px;background:var(--c-line);margin:14px 8px;}
.sidebar-foot{margin-top:auto;padding:20px;border-top:1px solid var(--c-line);}
.sidebar-note{margin-top:12px;font-size:12px;line-height:1.7;color:var(--c-dim);}
.sidebar-mask{
  position:fixed;inset:0;background:rgba(0,0,0,.6);
  opacity:0;visibility:hidden;transition:opacity var(--tr),visibility var(--tr);z-index:75;
}
.sidebar-mask.is-open{opacity:1;visibility:visible;}

/* =========================================================
   主内容区
   ========================================================= */
.app-main{position:relative;margin-left:var(--sidebar-w);z-index:1;min-height:100vh;}

/* =========================================================
   Hero
   ========================================================= */
.hero{position:relative;padding:calc(var(--sp-8) + 8px) 0 var(--sp-8);overflow:hidden;}
.hero-bg{
  position:absolute;inset:0;
  background-image:linear-gradient(105deg,rgba(10,14,20,.97) 0%,rgba(10,14,20,.88) 46%,rgba(10,14,20,.62) 100%),url('/assets/images/backpic/back-1.webp');
  background-size:cover;background-position:center right;
  z-index:-1;
}
.hero-bg::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(10,14,20,.2),rgba(10,14,20,.95));
}
.hero-inner{position:relative;}
.hero-title{
  margin-top:18px;
  font-size:46px;line-height:1.16;font-weight:800;
  letter-spacing:-.02em;color:var(--c-text);
}
.hero-title span{color:var(--c-primary);}
.hero-sub{
  margin-top:20px;max-width:620px;
  font-size:17px;line-height:1.85;color:var(--c-muted);
}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:30px;}
.hero-points{margin-top:34px;display:flex;flex-direction:column;gap:12px;}
.hero-points li{display:flex;align-items:flex-start;gap:10px;font-size:14px;color:var(--c-muted);}
.hero-points i{color:var(--c-primary);font-size:15px;margin-top:4px;}
.hero-panel{display:flex;flex-direction:column;gap:16px;}
.panel-card{
  background:var(--c-surface);border:1px solid var(--c-line);
  border-radius:var(--r-lg);padding:24px;
  transition:border-color var(--tr),transform var(--tr),box-shadow var(--tr);
}
.panel-card:hover{border-color:var(--c-primary-line);transform:translateY(-3px);box-shadow:var(--shadow-hover);}
.panel-card .panel-label{display:flex;align-items:center;gap:8px;font-size:13px;color:var(--c-muted);}
.panel-card .panel-label i{color:var(--c-primary);}
.panel-value{
  display:flex;align-items:baseline;gap:6px;margin-top:12px;
  font-size:44px;font-weight:800;line-height:1;color:var(--c-text);
  font-variant-numeric:tabular-nums;letter-spacing:-.02em;
}
.panel-value small{font-size:15px;font-weight:600;color:var(--c-muted);letter-spacing:0;}
.panel-desc{margin-top:12px;font-size:14px;line-height:1.8;color:var(--c-muted);}
.panel-card.is-accent{border-color:rgba(255,176,32,.28);}
.panel-card.is-accent .panel-label i{color:var(--c-accent);}
.panel-card.is-accent .panel-value{color:var(--c-accent);}

/* =========================================================
   指标看板
   ========================================================= */
.metrics{padding-top:var(--sp-7);}
.metrics-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px;}
.metric-card{
  position:relative;padding:24px;border-radius:var(--r-md);
  background:var(--c-surface);border:1px solid var(--c-line);
  overflow:hidden;transition:border-color var(--tr),transform var(--tr),box-shadow var(--tr);
}
.metric-card:hover{border-color:var(--c-primary-line);transform:translateY(-3px);box-shadow:var(--shadow-hover);}
.metric-num{
  display:inline-block;font-size:46px;font-weight:800;line-height:1;
  color:var(--c-text);font-variant-numeric:tabular-nums;letter-spacing:-.03em;
}
.metric-unit{margin-left:6px;font-size:14px;font-weight:600;color:var(--c-primary);}
.metric-label{margin-top:12px;font-size:13px;line-height:1.7;color:var(--c-muted);}
.metric-bar{
  display:block;margin-top:18px;height:2px;width:100%;
  background:rgba(255,255,255,.07);border-radius:2px;position:relative;overflow:hidden;
}
.metric-bar::after{content:"";position:absolute;left:0;top:0;height:100%;width:62%;background:var(--c-primary);border-radius:2px;}
.metric-card:nth-child(2) .metric-bar::after{width:74%;}
.metric-card:nth-child(3) .metric-bar::after{width:48%;}
.metric-card:nth-child(4) .metric-bar::after{width:86%;}

/* =========================================================
   服务矩阵 2+1
   ========================================================= */
.services-grid{display:grid;grid-template-columns:1.15fr 1fr;gap:24px;align-items:stretch;}
.service-feature{
  display:flex;flex-direction:column;
  padding:24px;border-radius:var(--r-md);
  background:var(--c-surface);border:1px solid var(--c-line);
  transition:border-color var(--tr),transform var(--tr),box-shadow var(--tr);
}
.service-feature:hover{border-color:var(--c-primary-line);transform:translateY(-3px);box-shadow:var(--shadow-hover);}
.service-cover{
  position:relative;width:100%;aspect-ratio:16/9;border-radius:12px;overflow:hidden;
  border:1px solid var(--c-line);
  background-color:var(--c-primary-soft-2);
  background-image:repeating-linear-gradient(135deg,rgba(25,227,155,.08) 0 10px,transparent 10px 20px);
}
.service-cover img{width:100%;height:100%;object-fit:cover;}
.service-feature h3{margin-top:22px;font-size:20px;font-weight:600;line-height:1.45;}
.service-feature p{margin-top:12px;font-size:15px;line-height:1.85;color:var(--c-muted);}
.service-feature .text-link{margin-top:auto;padding-top:20px;}
.service-list{display:grid;grid-template-columns:1fr;gap:16px;}
.service-row{
  display:flex;align-items:flex-start;gap:16px;
  padding:20px;border-radius:var(--r-md);
  background:var(--c-surface);border:1px solid var(--c-line);
  transition:border-color var(--tr),background-color var(--tr),transform var(--tr);
}
.service-row:hover{border-color:var(--c-primary-line);background:var(--c-surface-2);transform:translateY(-3px);text-decoration:none;}
.service-icon{
  width:40px;height:40px;flex:0 0 40px;border-radius:10px;
  display:flex;align-items:center;justify-content:center;
  background:var(--c-primary-soft);color:var(--c-primary);font-size:16px;
}
.service-body{display:flex;flex-direction:column;min-width:0;}
.service-index{font-size:12px;font-weight:700;letter-spacing:.14em;color:var(--c-dim);font-variant-numeric:tabular-nums;}
.service-body strong{display:block;margin-top:4px;font-size:16px;font-weight:600;color:var(--c-text);line-height:1.5;}
.service-body em{display:block;margin-top:6px;font-size:13px;line-height:1.75;color:var(--c-muted);}
.service-arrow{margin-left:auto;color:var(--c-dim);font-size:13px;transition:transform var(--tr),color var(--tr);}
.service-row:hover .service-arrow{color:var(--c-primary);transform:translateX(3px);}

/* =========================================================
   四步流程
   ========================================================= */
.flow-track{position:relative;display:grid;grid-template-columns:repeat(4,1fr);gap:24px;}
.flow-track::before{
  content:"";position:absolute;left:12px;right:12px;top:19px;height:2px;
  background:linear-gradient(90deg,rgba(25,227,155,.5),rgba(25,227,155,.06));
}
.flow-step{position:relative;padding-top:0;}
.flow-dot{
  position:relative;z-index:1;
  width:40px;height:40px;border-radius:50%;
  display:flex;align-items:center;justify-content:center;
  background:var(--c-surface-2);border:1px solid var(--c-primary-line);
  color:var(--c-primary);font-size:13px;font-weight:700;
  font-variant-numeric:tabular-nums;
}
.flow-step h3{margin-top:20px;font-size:17px;font-weight:600;line-height:1.5;}
.flow-step p{margin-top:10px;font-size:14px;line-height:1.85;color:var(--c-muted);}

/* =========================================================
   对比表
   ========================================================= */
.compare-wrap{
  border:1px solid var(--c-line);border-radius:var(--r-md);overflow:hidden;
  background:var(--c-surface);
}
.compare-head{
  display:grid;grid-template-columns:1fr 1fr;
  background:var(--c-surface-2);
  border-bottom:1px solid var(--c-line);
}
.compare-head div{
  padding:16px 24px;font-size:14px;font-weight:600;color:var(--c-muted);
  display:flex;align-items:center;gap:8px;
}
.compare-head div+div{border-left:1px solid var(--c-line);color:var(--c-primary-text);}
.compare-head i{font-size:14px;}
.compare-row{display:grid;grid-template-columns:1fr 1fr;border-bottom:1px solid var(--c-line);}
.compare-row:last-child{border-bottom:none;}
.compare-cell{
  display:flex;align-items:flex-start;gap:10px;
  padding:18px 24px;font-size:15px;line-height:1.75;color:var(--c-muted);
}
.compare-cell i{margin-top:5px;font-size:14px;}
.compare-right{background:var(--c-primary-soft-2);color:var(--c-text);border-left:1px solid var(--c-line);}
.compare-left i{color:var(--c-alert);}
.compare-right i{color:var(--c-primary);}
.compare-row:hover .compare-left{background:rgba(255,255,255,.02);}
.compare-row:hover .compare-right{background:rgba(25,227,155,.09);}

/* =========================================================
   最新信息
   ========================================================= */
.news-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;}
.news-card{
  display:flex;flex-direction:column;
  padding:20px;border-radius:var(--r-md);
  background:var(--c-surface);border:1px solid var(--c-line);
  transition:border-color var(--tr),transform var(--tr),box-shadow var(--tr);
}
.news-card:hover{border-color:var(--c-primary-line);transform:translateY(-3px);box-shadow:var(--shadow-hover);}
.news-cover{
  position:relative;display:block;width:100%;aspect-ratio:16/9;
  border-radius:12px;overflow:hidden;border:1px solid var(--c-line);
  background-color:var(--c-primary-soft-2);
  background-image:repeating-linear-gradient(135deg,rgba(25,227,155,.08) 0 10px,transparent 10px 20px);
}
.news-cover img{width:100%;height:100%;object-fit:cover;transition:transform 320ms ease;}
.news-card:hover .news-cover img{transform:scale(1.04);}
.news-meta{display:flex;align-items:center;gap:10px;margin-top:16px;font-size:12px;color:var(--c-dim);}
.news-title{
  margin-top:12px;font-size:16px;font-weight:600;line-height:1.6;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.news-title a{color:var(--c-text);}
.news-title a:hover{color:var(--c-primary-text);text-decoration:none;}
.news-summary{
  margin-top:10px;font-size:13px;line-height:1.8;color:var(--c-muted);
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.news-time{margin-top:16px;font-size:12px;color:var(--c-dim);font-variant-numeric:tabular-nums;}
.empty-state{
  display:flex;flex-direction:column;align-items:center;justify-content:center;
  gap:14px;padding:56px 24px;border:1px dashed var(--c-line-strong);
  border-radius:var(--r-md);background:var(--c-surface);text-align:center;
}
.empty-state i{font-size:48px;color:var(--c-dim);opacity:.6;}
.empty-state p{font-size:14px;color:var(--c-muted);}
.empty-state .btn{height:40px;font-size:14px;}

/* =========================================================
   FAQ
   ========================================================= */
.faq-list{border-bottom:1px solid var(--c-line);}
.faq-side{
  padding:24px;border-radius:var(--r-md);
  background:var(--c-surface);border:1px solid var(--c-line);
}
.faq-side h3{font-size:17px;font-weight:600;}
.faq-side p{margin-top:12px;font-size:14px;line-height:1.85;color:var(--c-muted);}
.faq-side .btn{margin-top:20px;}

/* =========================================================
   转化表单
   ========================================================= */
.contact-panel{
  border:1px solid var(--c-line);border-radius:var(--r-lg);
  background:var(--c-surface);padding:32px;
}
.check-list{display:flex;flex-direction:column;gap:14px;margin-top:24px;}
.check-list li{display:flex;align-items:flex-start;gap:10px;font-size:15px;color:var(--c-muted);}
.check-list i{color:var(--c-primary);margin-top:5px;font-size:14px;}
.form-row{margin-bottom:18px;}
.form-row label{display:block;margin-bottom:8px;font-size:13px;color:var(--c-muted);}
.form-row label span{color:var(--c-alert);margin-left:4px;}
.form-control{
  width:100%;height:48px;padding:0 14px;
  border-radius:var(--r-sm);border:1px solid var(--c-line);
  background:var(--c-surface-2);color:var(--c-text);font-size:15px;
  transition:border-color var(--tr),box-shadow var(--tr),background-color var(--tr);
}
textarea.form-control{height:auto;min-height:120px;padding:12px 14px;line-height:1.8;resize:vertical;}
select.form-control{appearance:none;background-image:linear-gradient(45deg,transparent 50%,var(--c-muted) 50%),linear-gradient(135deg,var(--c-muted) 50%,transparent 50%);background-position:calc(100% - 20px) 21px,calc(100% - 14px) 21px;background-size:6px 6px,6px 6px;background-repeat:no-repeat;}
.form-control::placeholder{color:var(--c-dim);}
.form-control:focus{
  outline:none;border-color:var(--c-primary);
  box-shadow:0 0 0 3px rgba(25,227,155,.14);
}
.form-status{
  margin-top:16px;min-height:22px;font-size:13px;line-height:1.7;color:var(--c-muted);
}
.form-status.is-success{color:var(--c-primary-text);}
.form-status.is-error{color:var(--c-alert);}
.form-note{margin-top:10px;font-size:12px;color:var(--c-dim);}

/* =========================================================
   CTA 带
   ========================================================= */
.cta-band{
  background:var(--c-primary-soft-2);
  border-top:1px solid var(--c-line);border-bottom:1px solid var(--c-line);
}
.cta-band .container{
  display:flex;align-items:center;justify-content:space-between;gap:24px;flex-wrap:wrap;
  padding-top:36px;padding-bottom:36px;
}
.cta-band h2{font-size:22px;font-weight:700;line-height:1.4;}
.cta-band p{margin-top:8px;font-size:14px;color:var(--c-muted);}

/* =========================================================
   页脚
   ========================================================= */
.site-footer{background:var(--c-bg-deep);border-top:1px solid var(--c-line);position:relative;z-index:1;}
.footer-grid{
  display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:32px;
  padding:56px 0 40px;
}
.footer-col h4{font-size:14px;font-weight:600;color:var(--c-text);letter-spacing:.02em;}
.footer-col ul{margin-top:16px;display:flex;flex-direction:column;gap:10px;}
.footer-col li{font-size:13px;line-height:1.75;color:var(--c-muted);}
.footer-col a{font-size:13px;color:var(--c-muted);transition:color 180ms ease,transform 180ms ease;display:inline-block;}
.footer-col a:hover{color:var(--c-primary-text);text-decoration:none;transform:translateX(2px);}
.footer-logo{display:inline-flex;align-items:center;gap:10px;font-size:16px;font-weight:700;color:var(--c-text);}
.footer-logo:hover{text-decoration:none;color:var(--c-primary-text);}
.footer-logo .brand-mark{width:30px;height:30px;flex:0 0 30px;font-size:13px;border-radius:9px;}
.footer-brand p{margin-top:16px;font-size:13px;line-height:1.85;color:var(--c-muted);max-width:340px;}
.footer-bottom{
  border-top:1px solid var(--c-line);
  padding:22px 0 32px;
  display:flex;flex-wrap:wrap;gap:12px 28px;align-items:center;
}
.footer-bottom p{font-size:12px;color:var(--c-dim);line-height:1.7;}

/* =========================================================
   响应式：平板
   ========================================================= */
@media screen and (max-width:1200px){
  .hero-title{font-size:40px;}
  .metrics-grid{grid-template-columns:repeat(2,1fr);}
  .flow-track{grid-template-columns:repeat(2,1fr);row-gap:32px;}
  .flow-track::before{display:none;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
}
@media screen and (max-width:1023px){
  .mobile-topbar{display:flex;}
  .app-sidebar{
    width:280px;
    transform:translateX(-100%);
    transition:transform 280ms cubic-bezier(.4,0,.2,1);
    box-shadow:0 0 40px rgba(0,0,0,.55);
    z-index:85;
  }
  .app-sidebar.is-open{transform:translateX(0);}
  .app-main{margin-left:0;padding-top:var(--topbar-h);}
  .hero{padding-top:56px;}
  .hero-bg{background-position:center;}
  .services-grid{grid-template-columns:1fr;}
  .news-grid{grid-template-columns:repeat(2,1fr);}
  .section{padding:56px 0;}
  .section-head h2{font-size:26px;}
}
@media screen and (max-width:767px){
  .hero-title{font-size:32px;line-height:1.25;}
  .hero-sub{font-size:15px;}
  .panel-value{font-size:36px;}
  .metric-num{font-size:38px;}
  .contact-panel{padding:24px;}
  .cta-band .container{flex-direction:column;align-items:flex-start;}
}
@media screen and (max-width:639px){
  .container{padding:0 16px;}
  .section{padding:44px 0;}
  .section-head h2{font-size:22px;}
  .metrics-grid{grid-template-columns:repeat(2,1fr);gap:14px;}
  .metric-card{padding:18px;}
  .metric-num{font-size:32px;}
  .news-grid{grid-template-columns:1fr;}
  .flow-track{grid-template-columns:1fr;gap:24px;}
  .compare-head{grid-template-columns:1fr;background:transparent;}
  .compare-head div{padding:12px 18px;background:var(--c-surface-2);border-bottom:1px solid var(--c-line);}
  .compare-head div+div{border-left:none;}
  .compare-row{grid-template-columns:1fr;padding:8px 0;}
  .compare-left{
    padding:12px 18px 6px;font-size:14px;
  }
  .compare-left::before{
    content:"自行摸索";display:block;width:100%;
    font-size:12px;font-weight:600;color:var(--c-dim);margin-bottom:6px;
  }
  .compare-right{
    padding:12px 18px 16px;border-left:none;border-radius:var(--r-sm);
    font-size:14px;margin:0 12px;
  }
  .compare-right::before{
    content:"跟着指引";display:block;width:100%;
    font-size:12px;font-weight:600;color:var(--c-primary-text);margin-bottom:6px;
  }
  .hero-actions .btn{width:100%;}
  .footer-grid{grid-template-columns:1fr;gap:28px;padding:40px 0 32px;}
  .accordion-title{font-size:15px;padding-right:38px;}
  .compare-head div:first-child{color:var(--c-muted);}
}

/* 图片兜底 */
img{background-color:rgba(25,227,155,.06);}
img[data-fallback="true"]{visibility:hidden;}

/* roulang page: article */
:root{
  --c-primary:#19E39B;
  --c-primary-soft:rgba(25,227,155,.12);
  --c-primary-line:rgba(25,227,155,.35);
  --c-accent:#FFB020;
  --c-accent-soft:rgba(255,176,32,.14);
  --c-alert:#FF5A7A;
  --c-bg:#0A0E14;
  --c-surface:#121821;
  --c-surface-2:#1A2330;
  --c-line:rgba(255,255,255,.08);
  --c-line-strong:rgba(255,255,255,.16);
  --c-text:#E9F1F7;
  --c-muted:#8FA0B3;
  --r-sm:8px;
  --r-md:14px;
  --r-lg:20px;
  --shadow-hover:0 14px 34px rgba(0,0,0,.38);
  --ease:200ms ease;
  --sidebar-w:248px;
  --font-cn:"PingFang SC","Microsoft YaHei","Source Han Sans SC","Noto Sans SC",sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  background-color:var(--c-bg);
  background-image:
    linear-gradient(rgba(255,255,255,.035) 1px,transparent 1px),
    linear-gradient(90deg,rgba(255,255,255,.035) 1px,transparent 1px);
  background-size:48px 48px,48px 48px;
  color:var(--c-text);
  font-family:var(--font-cn);
  font-size:16px;
  line-height:1.9;
  letter-spacing:0;
  overflow-x:hidden;
}
img{max-width:100%;height:auto;display:block;border:0}
a{color:var(--c-text);text-decoration:none;transition:color var(--ease),background-color var(--ease),border-color var(--ease),transform var(--ease)}
a:hover{color:var(--c-primary)}
a:focus-visible,button:focus-visible,input:focus-visible,select:focus-visible,textarea:focus-visible{outline:2px solid var(--c-primary);outline-offset:2px;border-radius:var(--r-sm)}
h1,h2,h3,h4{margin:0;color:var(--c-text);font-weight:700}
p{margin:0}
ul,ol{margin:0;padding:0;list-style:none}
button{font-family:inherit}
.num{font-variant-numeric:tabular-nums;letter-spacing:-.02em}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px}
.badge{display:inline-flex;align-items:center;height:24px;padding:0 10px;border-radius:999px;font-size:12px;line-height:1;letter-spacing:0}
.badge-primary{background:var(--c-primary-soft);color:var(--c-primary)}
.badge-accent{background:var(--c-accent-soft);color:var(--c-accent)}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 24px;border-radius:var(--r-md);
  font-size:15px;font-weight:600;line-height:1;cursor:pointer;
  border:1px solid transparent;background:transparent;color:var(--c-text);
  transition:background-color var(--ease),border-color var(--ease),color var(--ease),transform var(--ease),box-shadow var(--ease);
}
.btn-primary{background:var(--c-primary);color:#04140D;border-color:var(--c-primary)}
.btn-primary:hover{background:#31eaa8;border-color:#31eaa8;color:#04140D;transform:translateY(-1px)}
.btn-primary:active{transform:translateY(0)}
.btn-ghost{background:transparent;border-color:var(--c-line);color:var(--c-primary)}
.btn-ghost:hover{border-color:var(--c-primary);background:rgba(25,227,155,.06);color:var(--c-primary)}
.btn-sm{height:36px;padding:0 14px;font-size:13px;border-radius:var(--r-sm)}
.btn-block{width:100%}
.button{background:var(--c-primary);color:#04140D;border-radius:var(--r-md);font-weight:600}
.button:hover{background:#31eaa8;color:#04140D}
.card{
  background:var(--c-surface);
  border:1px solid var(--c-line);
  border-radius:var(--r-md);
  padding:24px;
  transition:border-color var(--ease),transform var(--ease),box-shadow var(--ease),background-color var(--ease);
}
.card:hover{border-color:var(--c-primary-line);transform:translateY(-3px);box-shadow:var(--shadow-hover)}
.section{padding:72px 0}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:28px}
.section-head h2{font-size:30px;line-height:1.25;font-weight:700}
.section-head h2::after{content:"";display:block;width:44px;height:2px;background:var(--c-primary);margin-top:14px;border-radius:2px}
.section-head .head-link{font-size:14px;color:var(--c-muted)}
.section-head .head-link:hover{color:var(--c-primary)}

/* ===== 移动顶栏 ===== */
.topbar{
  display:none;position:fixed;top:0;left:0;right:0;height:56px;z-index:60;
  align-items:center;gap:12px;padding:0 16px;
  background:var(--c-surface);border-bottom:1px solid var(--c-line);
}
.hamburger{
  width:40px;height:40px;display:inline-flex;align-items:center;justify-content:center;
  background:transparent;border:1px solid var(--c-line);border-radius:var(--r-sm);
  color:var(--c-text);font-size:16px;cursor:pointer;transition:border-color var(--ease),color var(--ease);
}
.hamburger:hover{border-color:var(--c-primary);color:var(--c-primary)}
.topbar-brand{font-size:15px;font-weight:700;color:var(--c-text);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.topbar .btn-sm{margin-left:auto;flex:0 0 auto}

/* ===== 侧栏 ===== */
.off-canvas-wrapper{overflow:visible}
.off-canvas-content{padding:0;box-shadow:none;background:transparent}
.app-sidebar{
  position:fixed;top:0;left:0;width:var(--sidebar-w);height:100vh;z-index:50;
  display:flex;flex-direction:column;
  background:var(--c-surface);border-right:1px solid var(--c-line);
  overflow-y:auto;
}
.brand{
  height:72px;flex:0 0 72px;display:flex;align-items:center;gap:12px;
  padding:0 20px;border-bottom:1px solid var(--c-line);
}
.brand-mark{
  width:36px;height:36px;flex:0 0 36px;display:inline-flex;align-items:center;justify-content:center;
  border-radius:10px;background:var(--c-primary-soft);color:var(--c-primary);font-size:15px;
}
.brand-text{display:flex;flex-direction:column;line-height:1.25;min-width:0}
.brand-text strong{font-size:15px;font-weight:700;color:var(--c-text);letter-spacing:0}
.brand-text span{font-size:11px;color:var(--c-muted)}
.sidebar-nav{display:flex;flex-direction:column;padding:16px 12px;gap:2px}
.nav-item{
  position:relative;display:flex;align-items:center;height:44px;padding:0 20px;
  font-size:15px;color:var(--c-text);border-radius:0 var(--r-sm) var(--r-sm) 0;
  transition:background-color var(--ease),color var(--ease);
}
.nav-item::before{
  content:"";position:absolute;left:0;top:8px;bottom:8px;width:3px;border-radius:0 3px 3px 0;
  background:transparent;transition:background-color var(--ease);
}
.nav-item:hover{background:rgba(255,255,255,.04);color:var(--c-primary)}
.nav-item.is-active{background:rgba(25,227,155,.08);color:var(--c-primary);font-weight:600}
.nav-item.is-active::before{background:var(--c-primary)}
.nav-sep{height:1px;background:var(--c-line);margin:14px 20px}
.sidebar-cta{padding:8px 20px 28px;margin-top:auto}
.sidebar-note{font-size:12px;color:var(--c-muted);line-height:1.7;padding:0 20px 24px}
.mobile-nav{padding-top:16px}
.mobile-nav .nav-item{border-radius:var(--r-sm);margin:0 4px}
.mobile-nav .nav-item::before{left:-4px}
.off-canvas{background:var(--c-surface);border-right:1px solid var(--c-line)}
.off-canvas .close-button{color:var(--c-muted);top:18px;right:18px;font-size:22px}
.off-canvas .close-button:hover{color:var(--c-primary)}
.off-canvas .brand{border-bottom:1px solid var(--c-line)}

/* ===== 主区域 ===== */
.app-main{margin-left:var(--sidebar-w);min-height:100vh;padding:24px 0 72px}
.article-shell{max-width:1200px}
.breadcrumb{
  display:flex;flex-wrap:wrap;align-items:center;gap:8px;
  font-size:13px;color:var(--c-muted);margin-bottom:28px;
}
.breadcrumb a{color:var(--c-muted)}
.breadcrumb a:hover{color:var(--c-primary)}
.breadcrumb .sep{color:rgba(255,255,255,.22)}
.breadcrumb .current{color:var(--c-muted);max-width:min(100%,520px);overflow:hidden;text-overflow:ellipsis;white-space:nowrap}

.article-layout{
  display:grid;grid-template-columns:minmax(0,760px);
  justify-content:center;gap:48px;
}
.article-main{min-width:0}
.article-head{margin-bottom:28px}
.article-head h1{
  font-size:34px;line-height:1.32;font-weight:800;margin:16px 0 18px;
  letter-spacing:-.01em;word-break:break-word;
}
.article-meta{display:flex;flex-wrap:wrap;align-items:center;gap:10px;font-size:13px;color:var(--c-muted)}
.article-meta .dot{color:rgba(255,255,255,.22)}
.article-divider{height:1px;background:var(--c-line);margin:0 0 32px}

.article-body{font-size:16px;line-height:1.9;color:var(--c-text);overflow-wrap:break-word}
.article-body p{margin:0 0 20px}
.article-body > *:last-child{margin-bottom:0}
.article-body h2{
  position:relative;font-size:26px;line-height:1.35;font-weight:700;
  margin:40px 0 16px;padding-left:14px;
}
.article-body h2::before{
  content:"";position:absolute;left:0;top:.2em;bottom:.2em;width:4px;border-radius:2px;background:var(--c-primary);
}
.article-body h3{font-size:19px;line-height:1.45;font-weight:600;margin:28px 0 12px}
.article-body h4{font-size:17px;font-weight:600;margin:22px 0 10px}
.article-body ul,.article-body ol{margin:0 0 20px;padding-left:22px}
.article-body ul{list-style:disc}
.article-body ol{list-style:decimal}
.article-body li{margin:8px 0;line-height:1.9}
.article-body ul li::marker,.article-body ol li::marker{color:var(--c-primary)}
.article-body strong{font-weight:700;color:#fff}
.article-body a{color:var(--c-primary);text-decoration:underline;text-underline-offset:4px}
.article-body a:hover{color:#5cf0bd}
.article-body blockquote{
  margin:24px 0;padding:16px 20px;border-left:3px solid var(--c-primary);
  background:var(--c-surface);border-radius:0 var(--r-md) var(--r-md) 0;color:#CFE0EC;
}
.article-body blockquote p:last-child{margin-bottom:0}
.article-body img{border-radius:12px;border:1px solid var(--c-line);margin:24px 0}
.article-body figure{margin:24px 0}
.article-body figcaption{text-align:center;font-size:13px;color:var(--c-muted);margin-top:10px}
.article-body hr{border:0;height:1px;background:var(--c-line);margin:36px 0}
.article-body table{
  width:100%;border-collapse:collapse;margin:24px 0;font-size:15px;
  border:1px solid var(--c-line);border-radius:var(--r-sm);overflow:hidden;
}
.article-body th,.article-body td{border:1px solid var(--c-line);padding:12px 14px;text-align:left}
.article-body th{background:var(--c-surface-2);font-weight:600}
.article-body tbody tr:hover{background:rgba(255,255,255,.03)}
.article-body code{
  background:var(--c-surface-2);color:var(--c-accent);padding:2px 6px;border-radius:6px;font-size:14px;
}

.article-cta{
  margin:48px 0 0;padding:28px;border-radius:var(--r-md);
  background:rgba(25,227,155,.06);border:1px solid var(--c-line);
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:20px;
}
.article-cta h2{font-size:20px;font-weight:700;margin-bottom:8px}
.article-cta p{font-size:14px;color:var(--c-muted);line-height:1.8}
.article-cta .cta-actions{display:flex;flex-wrap:wrap;gap:12px}

.related{margin-top:56px}
.related .grid-3{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px}
.article-card{display:flex;flex-direction:column;padding:0;overflow:hidden}
.article-card .card-media{
  aspect-ratio:16/9;background:var(--c-surface-2) ;
  background-image:linear-gradient(135deg,rgba(25,227,155,.10) 25%,transparent 25%,transparent 50%,rgba(25,227,155,.10) 50%,rgba(25,227,155,.10) 75%,transparent 75%);
  background-size:22px 22px;overflow:hidden;
}
.article-card .card-media img{width:100%;height:100%;object-fit:cover;border-radius:0;border:0;margin:0}
.article-card .card-body{padding:20px;display:flex;flex-direction:column;gap:10px;flex:1 1 auto}
.article-card h3{font-size:16px;line-height:1.5;font-weight:600;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.article-card p{font-size:14px;line-height:1.8;color:var(--c-muted);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.article-card:hover{color:var(--c-text)}
.article-card:hover h3{color:var(--c-primary)}

.article-foot{
  margin-top:44px;padding-top:24px;border-top:1px solid var(--c-line);
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:16px;
}
.article-foot a{font-size:14px;color:var(--c-muted)}
.article-foot a:hover{color:var(--c-primary)}

.article-side{display:none}
.article-side .side-card{margin-bottom:24px}
.article-side h2{font-size:16px;font-weight:600;margin-bottom:16px}
.side-list li{padding:14px 0;border-bottom:1px solid var(--c-line)}
.side-list li:last-child{border-bottom:0;padding-bottom:0}
.side-list a{font-size:14px;line-height:1.7;color:var(--c-text);display:block}
.side-list a:hover{color:var(--c-primary)}
.side-list .side-meta{display:block;font-size:12px;color:var(--c-muted);margin-top:6px}
.back-box{display:flex;flex-direction:column;gap:12px}
.back-box .btn{width:100%}

.empty-state{
  padding:72px 24px;text-align:center;background:var(--c-surface);
  border:1px solid var(--c-line);border-radius:var(--r-md);
}
.empty-state i{font-size:48px;color:var(--c-primary);opacity:.75}
.empty-state h1{font-size:24px;font-weight:700;margin:20px 0 12px}
.empty-state p{font-size:14px;color:var(--c-muted);margin-bottom:24px}

/* ===== 页脚 ===== */
.site-footer{background:#070A0F;border-top:1px solid var(--c-line);padding:64px 0 28px;margin-left:var(--sidebar-w)}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:32px}
.footer-logo{display:inline-flex;align-items:center;gap:10px;font-size:16px;font-weight:700;color:var(--c-text);margin-bottom:16px}
.footer-logo .brand-mark{width:32px;height:32px;flex:0 0 32px;border-radius:9px;font-size:14px}
.footer-logo:hover{color:var(--c-primary)}
.footer-brand p{font-size:14px;line-height:1.9;color:var(--c-muted);max-width:340px}
.footer-col h4{font-size:15px;font-weight:600;margin-bottom:16px;color:var(--c-text)}
.footer-col ul li{font-size:14px;line-height:1.9;color:var(--c-muted);margin-bottom:10px}
.footer-col ul li a{color:var(--c-muted);display:inline-block;transition:color 180ms ease,transform 180ms ease}
.footer-col ul li a:hover{color:var(--c-primary);transform:translateX(2px)}
.footer-bottom{
  margin-top:44px;padding-top:24px;border-top:1px solid var(--c-line);
  display:flex;flex-wrap:wrap;gap:12px 24px;justify-content:space-between;
}
.footer-bottom p{font-size:13px;color:var(--c-muted);line-height:1.8}

/* ===== 响应式 ===== */
@media (min-width:1440px){
  .article-layout{grid-template-columns:minmax(0,760px) 300px;justify-content:center;align-items:start}
  .article-side{display:block}
}
@media (max-width:1023px){
  .app-sidebar{display:none}
  .topbar{display:flex}
  .app-main{margin-left:0;padding-top:88px}
  .site-footer{margin-left:0}
  .off-canvas.position-left{display:block}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px}
  .article-layout{grid-template-columns:minmax(0,1fr)}
  .section{padding:56px 0}
}
@media (min-width:1024px){
  .off-canvas.position-left{display:none}
}
@media (max-width:767px){
  .container{padding:0 16px}
  .article-head h1{font-size:27px}
  .article-body h2{font-size:22px}
  .article-body h3{font-size:18px}
  .section-head{flex-direction:column;align-items:flex-start;gap:10px}
  .section-head h2{font-size:24px}
  .related .grid-3{grid-template-columns:1fr}
  .article-cta{flex-direction:column;align-items:flex-start;padding:22px}
  .article-cta .cta-actions{width:100%}
  .article-cta .cta-actions .btn{width:100%}
  .article-body table{display:block;overflow-x:auto;white-space:nowrap}
  .footer-grid{grid-template-columns:1fr;gap:24px}
  .footer-bottom{flex-direction:column;gap:8px}
}
@media (max-width:639px){
  .section{padding:44px 0}
  .card{padding:20px}
  .article-card .card-body{padding:16px}
}

/* roulang page: category1 */
:root{
  --c-primary:#19E39B;
  --c-primary-dim:rgba(25,227,155,.12);
  --c-primary-soft:rgba(25,227,155,.06);
  --c-primary-line:rgba(25,227,155,.35);
  --c-accent:#FFB020;
  --c-accent-dim:rgba(255,176,32,.14);
  --c-alert:#FF5A7A;
  --c-alert-dim:rgba(255,90,122,.12);
  --c-bg:#0A0E14;
  --c-bg-deep:#070A0F;
  --c-surface:#121821;
  --c-surface-2:#1A2330;
  --c-line:rgba(255,255,255,.08);
  --c-text:#E9F1F7;
  --c-muted:#8FA0B3;
  --r-sm:8px;
  --r-md:14px;
  --r-lg:20px;
  --r-pill:999px;
  --sp-section:72px;
  --sp-section-m:44px;
  --shadow-hover:0 14px 34px rgba(0,0,0,.38);
  --sidebar-w:248px;
  --topbar-h:56px;
  --font-cn:"PingFang SC","Microsoft YaHei","Source Han Sans SC","Noto Sans SC",sans-serif;
  --ease:200ms ease;
}

/* ============ 基础重置 ============ */
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--c-bg);
  color:var(--c-text);
  font-family:var(--font-cn);
  font-size:16px;
  line-height:1.9;
  font-weight:400;
  -webkit-font-smoothing:antialiased;
  letter-spacing:0;
}
h1,h2,h3,h4,h5,p,ul,ol,figure{margin:0;padding:0;}
ul,ol{list-style:none;}
img{max-width:100%;border:0;}
a{color:var(--c-text);text-decoration:none;transition:color var(--ease),border-color var(--ease),background var(--ease);}
a:hover{color:var(--c-primary);text-decoration:underline;text-underline-offset:4px;}
a:focus-visible,button:focus-visible,input:focus-visible,select:focus-visible,textarea:focus-visible{
  outline:2px solid var(--c-primary);outline-offset:2px;
}
button{font-family:inherit;cursor:pointer;}
::selection{background:rgba(25,227,155,.28);color:#fff;}

/* 滚动条 */
::-webkit-scrollbar{width:10px;height:10px;}
::-webkit-scrollbar-track{background:var(--c-bg);}
::-webkit-scrollbar-thumb{background:#243040;border-radius:999px;border:2px solid var(--c-bg);}
::-webkit-scrollbar-thumb:hover{background:#2f3f52;}

/* ============ 容器 ============ */
.container{
  width:100%;
  max-width:1200px;
  margin:0 auto;
  padding:0 24px;
}

/* ============ 侧栏导航 ============ */
.app-sidebar{
  position:fixed;
  top:0;left:0;bottom:0;
  width:var(--sidebar-w);
  height:100vh;
  background:var(--c-surface);
  border-right:1px solid var(--c-line);
  display:flex;
  flex-direction:column;
  overflow-y:auto;
  z-index:70;
}
.sidebar-logo{
  height:72px;
  display:flex;
  align-items:center;
  gap:10px;
  padding:0 20px;
  border-bottom:1px solid var(--c-line);
  flex:0 0 auto;
  text-decoration:none;
}
.sidebar-logo:hover{text-decoration:none;}
.brand-mark{
  width:34px;height:34px;
  flex:0 0 34px;
  border-radius:10px;
  background:var(--c-primary-dim);
  border:1px solid var(--c-primary-line);
  color:var(--c-primary);
  display:flex;align-items:center;justify-content:center;
  font-size:15px;
}
.brand-text{display:flex;flex-direction:column;line-height:1.3;}
.brand-line-1{
  font-size:15px;font-weight:700;letter-spacing:-.02em;color:var(--c-text);
}
.brand-line-2{font-size:11px;color:var(--c-muted);letter-spacing:.02em;}
.sidebar-logo:hover .brand-line-1{color:var(--c-primary);}

.sidebar-nav{padding:14px 0;flex:1 1 auto;display:flex;flex-direction:column;}
.nav-item{
  display:flex;
  align-items:center;
  height:44px;
  padding:0 20px;
  font-size:15px;
  color:var(--c-muted);
  border-left:3px solid transparent;
  transition:background var(--ease),color var(--ease),border-color var(--ease);
}
.nav-item:hover{
  background:rgba(255,255,255,.04);
  color:var(--c-text);
  text-decoration:none;
}
.nav-item.is-active{
  border-left-color:var(--c-primary);
  background:rgba(25,227,155,.08);
  color:var(--c-primary);
  font-weight:600;
}
.nav-item:focus-visible{
  background:rgba(255,255,255,.04);
}
.nav-sep{
  height:1px;
  background:var(--c-line);
  margin:12px 20px;
}
.sidebar-foot{
  padding:16px 20px 22px;
  border-top:1px solid var(--c-line);
  flex:0 0 auto;
}
.btn-block{width:100%;justify-content:center;}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  height:48px;
  padding:0 24px;
  border-radius:var(--r-md);
  font-size:15px;
  font-weight:600;
  border:1px solid transparent;
  text-decoration:none;
  transition:transform var(--ease),background var(--ease),border-color var(--ease),color var(--ease),box-shadow var(--ease);
  white-space:nowrap;
}
.btn:hover{text-decoration:none;transform:translateY(-1px);}
.btn:active{transform:translateY(0);}
.btn-primary{
  background:var(--c-primary);
  color:#05231A;
  border-color:var(--c-primary);
}
.btn-primary:hover{
  background:#2AEBA8;
  color:#05231A;
  box-shadow:0 10px 26px rgba(25,227,155,.22);
}
.btn-ghost{
  background:transparent;
  color:var(--c-primary);
  border-color:var(--c-line);
}
.btn-ghost:hover{
  border-color:var(--c-primary);
  background:var(--c-primary-soft);
  color:var(--c-primary);
}
.btn-sm{height:40px;padding:0 18px;font-size:14px;border-radius:var(--r-sm);}

/* ============ 主内容区 ============ */
.main-area{
  margin-left:var(--sidebar-w);
  min-height:100vh;
  padding-top:24px;
}

/* ============ 移动端顶栏 ============ */
.mobile-topbar{
  display:none;
  position:fixed;
  top:0;left:0;right:0;
  height:var(--topbar-h);
  align-items:center;
  gap:12px;
  padding:0 16px;
  background:rgba(18,24,33,.96);
  border-bottom:1px solid var(--c-line);
  z-index:80;
}
.menu-toggle{
  width:44px;height:44px;
  display:flex;align-items:center;justify-content:center;
  background:transparent;
  border:1px solid var(--c-line);
  border-radius:var(--r-sm);
  color:var(--c-text);
  font-size:17px;
}
.menu-toggle:hover{border-color:var(--c-primary);color:var(--c-primary);}
.topbar-brand{
  font-size:15px;font-weight:700;color:var(--c-text);
  flex:1 1 auto;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;
}
.topbar-brand:hover{text-decoration:none;color:var(--c-primary);}
.sidebar-backdrop{
  position:fixed;
  inset:0;
  background:rgba(0,0,0,.6);
  opacity:0;
  visibility:hidden;
  transition:opacity var(--ease),visibility var(--ease);
  z-index:65;
}
.sidebar-backdrop.is-open{opacity:1;visibility:visible;}
.sidebar-close{
  display:none;
  position:absolute;
  top:14px;right:12px;
  width:36px;height:36px;
  align-items:center;justify-content:center;
  background:transparent;
  border:1px solid var(--c-line);
  border-radius:var(--r-sm);
  color:var(--c-muted);
  font-size:15px;
}

/* ============ 通用板块 ============ */
.section{padding:var(--sp-section) 0;}
.section-tight{padding:48px 0;}
.section-head{margin-bottom:36px;max-width:760px;}
.section-index{
  display:inline-flex;
  align-items:center;
  gap:10px;
  font-size:13px;
  color:var(--c-muted);
  font-variant-numeric:tabular-nums;
  letter-spacing:.04em;
  margin-bottom:12px;
}
.section-index::before{
  content:"";
  width:22px;height:2px;
  background:var(--c-primary);
  display:inline-block;
}
h1{font-size:clamp(30px,4vw,46px);line-height:1.15;font-weight:800;letter-spacing:-.02em;}
h2{font-size:clamp(22px,2.4vw,30px);line-height:1.25;font-weight:700;letter-spacing:-.02em;}
h3{font-size:19px;line-height:1.4;font-weight:600;}
p{color:var(--c-muted);}
.lead{font-size:16px;line-height:1.9;color:var(--c-muted);}
.muted{color:var(--c-muted);}
.num{font-variant-numeric:tabular-nums;letter-spacing:-.02em;}

/* 徽章 */
.tag{
  display:inline-flex;
  align-items:center;
  gap:6px;
  height:24px;
  padding:0 10px;
  border-radius:var(--r-pill);
  font-size:12px;
  line-height:1;
  background:var(--c-primary-dim);
  color:var(--c-primary);
  border:1px solid rgba(25,227,155,.2);
}
.tag-accent{
  background:var(--c-accent-dim);
  color:var(--c-accent);
  border-color:rgba(255,176,32,.25);
}

/* ============ 面包屑 ============ */
.breadcrumb{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:8px;
  font-size:13px;
  color:var(--c-muted);
  margin-bottom:18px;
}
.breadcrumb a{color:var(--c-muted);}
.breadcrumb a:hover{color:var(--c-primary);}
.breadcrumb .sep{color:#3d4b5c;}
.breadcrumb .current{color:var(--c-muted);}

/* ============ Hero 横幅 ============ */
.page-hero{
  position:relative;
  overflow:hidden;
  border-bottom:1px solid var(--c-line);
  border-radius:var(--r-lg);
  margin:0 24px;
  max-width:1200px;
  min-height:270px;
  display:flex;
  align-items:flex-end;
}
@media (min-width:1248px){
  .page-hero{margin:0 auto;}
}
.hero-bg{
  position:absolute;
  inset:0;
  width:100%;
  height:100%;
  object-fit:cover;
  opacity:.55;
}
.hero-overlay{
  position:absolute;
  inset:0;
  background:linear-gradient(180deg,rgba(10,14,20,.35) 0%,rgba(10,14,20,.82) 58%,rgba(10,14,20,.97) 100%);
}
.hero-inner{
  position:relative;
  width:100%;
  padding:64px 32px 40px;
}
.hero-inner h1{margin:14px 0 16px;max-width:820px;}
.hero-sub{
  font-size:16px;
  line-height:1.9;
  color:#B9C7D4;
  max-width:660px;
}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:26px;}

/* ============ 速览要点 ============ */
.quick-grid{
  display:grid;
  grid-template-columns:repeat(3,1fr);
  gap:24px;
}
.quick-item{
  background:var(--c-surface);
  border:1px solid var(--c-line);
  border-radius:var(--r-md);
  padding:24px;
  transition:border-color var(--ease),transform var(--ease),box-shadow var(--ease);
}
.quick-item:hover{
  border-color:var(--c-primary-line);
  transform:translateY(-3px);
  box-shadow:var(--shadow-hover);
}
.quick-num{
  font-size:13px;
  color:var(--c-primary);
  font-variant-numeric:tabular-nums;
  letter-spacing:.08em;
  margin-bottom:12px;
}
.quick-item h3{margin-bottom:10px;}
.quick-item p{font-size:14px;line-height:1.85;}

/* ============ 交替图文 ============ */
.split-list{display:flex;flex-direction:column;gap:8px;}
.split-row{
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:48px;
  align-items:center;
  padding:36px 0;
  border-top:1px solid var(--c-line);
}
.split-row:first-child{border-top:0;padding-top:0;}
.split-row.is-reverse .split-text{order:2;}
.split-row.is-reverse .split-media{order:1;}
.split-text h3{font-size:22px;line-height:1.4;margin:14px 0 14px;}
.split-text p{margin-bottom:16px;}
.dot-list{display:flex;flex-direction:column;gap:12px;}
.dot-list li{
  position:relative;
  padding-left:20px;
  font-size:15px;
  line-height:1.85;
  color:var(--c-muted);
}
.dot-list li::before{
  content:"";
  position:absolute;
  left:0;top:11px;
  width:6px;height:6px;
  border-radius:50%;
  background:var(--c-primary);
}
.media{
  border-radius:var(--r-md);
  overflow:hidden;
  border:1px solid var(--c-line);
  aspect-ratio:16/10;
  background:var(--c-primary-soft);
  background-image:repeating-linear-gradient(45deg,rgba(25,227,155,.07) 0 2px,transparent 2px 10px);
}
.media img{
  display:block;
  width:100%;
  height:100%;
  object-fit:cover;
}

/* ============ 核对清单 ============ */
.check-panel{
  background:var(--c-surface);
  border:1px solid var(--c-line);
  border-radius:var(--r-lg);
  padding:32px;
}
.check-grid{
  display:grid;
  grid-template-columns:repeat(2,1fr);
  gap:18px 32px;
}
.check-item{
  display:flex;
  gap:12px;
  align-items:flex-start;
  font-size:15px;
  line-height:1.8;
  color:var(--c-muted);
  padding:14px 0;
  border-bottom:1px dashed var(--c-line);
}
.check-item i{
  color:var(--c-primary);
  font-size:15px;
  margin-top:7px;
  flex:0 0 auto;
}

/* ============ 信息卡横排 ============ */
.info-cards{
  display:grid;
  grid-template-columns:repeat(3,1fr);
  gap:24px;
}
.info-card{
  background:var(--c-surface);
  border:1px solid var(--c-line);
  border-radius:var(--r-md);
  padding:24px;
  transition:border-color var(--ease),transform var(--ease),box-shadow var(--ease);
}
.info-card:hover{
  border-color:var(--c-primary-line);
  transform:translateY(-3px);
  box-shadow:var(--shadow-hover);
}
.info-card .icon-box{
  width:44px;height:44px;
  border-radius:12px;
  display:flex;align-items:center;justify-content:center;
  background:var(--c-primary-dim);
  color:var(--c-primary);
  font-size:18px;
  margin-bottom:16px;
}
.info-card h3{font-size:18px;margin-bottom:10px;}
.info-card p{font-size:14px;line-height:1.85;}

/* ============ FAQ ============ */
.faq-list{border-top:1px solid var(--c-line);}
.faq-item{border-bottom:1px solid var(--c-line);}
.faq-q{
  width:100%;
  min-height:56px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  background:transparent;
  border:0;
  color:var(--c-text);
  font-size:16px;
  font-weight:600;
  text-align:left;
  padding:8px 0;
  transition:color var(--ease);
}
.faq-q:hover{color:var(--c-primary);}
.faq-q .faq-icon{
  flex:0 0 auto;
  width:24px;height:24px;
  display:flex;align-items:center;justify-content:center;
  color:var(--c-primary);
  font-size:14px;
  transition:transform var(--ease);
}
.faq-item.is-open .faq-icon{transform:rotate(45deg);}
.faq-a{
  max-height:0;
  overflow:hidden;
  transition:max-height 300ms ease;
}
.faq-item.is-open .faq-a{max-height:420px;}
.faq-a-inner{
  font-size:15px;
  line-height:1.85;
  color:var(--c-muted);
  padding:0 0 24px;
  max-width:820px;
}
.faq-a-inner p{font-size:15px;line-height:1.85;}

/* ============ CTA 带 ============ */
.cta-band{
  background:rgba(25,227,155,.08);
  border:1px solid var(--c-line);
  border-radius:var(--r-lg);
  padding:52px 32px;
  text-align:center;
}
.cta-band h2{margin-bottom:14px;}
.cta-band p{max-width:640px;margin:0 auto 26px;font-size:15px;line-height:1.9;}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px;justify-content:center;}

/* ============ 页脚 ============ */
.site-footer{
  background:var(--c-bg-deep);
  border-top:1px solid var(--c-line);
  padding:56px 0 28px;
  margin-top:var(--sp-section);
}
.footer-grid{
  display:grid;
  grid-template-columns:1.4fr 1fr 1fr 1.2fr;
  gap:32px;
}
.footer-logo{
  display:inline-flex;
  align-items:center;
  gap:10px;
  font-size:16px;
  font-weight:700;
  color:var(--c-text);
  margin-bottom:14px;
}
.footer-logo:hover{color:var(--c-primary);text-decoration:none;}
.footer-brand p{font-size:14px;line-height:1.85;color:var(--c-muted);max-width:320px;}
.footer-col h4{
  font-size:15px;
  font-weight:600;
  color:var(--c-text);
  margin-bottom:16px;
}
.footer-col ul li{
  font-size:14px;
  line-height:1.85;
  color:var(--c-muted);
  margin-bottom:10px;
}
.footer-col a{
  display:inline-block;
  color:var(--c-muted);
  transition:color 180ms ease,transform 180ms ease;
}
.footer-col a:hover{
  color:var(--c-primary);
  transform:translateX(2px);
  text-decoration:none;
}
.footer-bottom{
  margin-top:40px;
  padding-top:20px;
  border-top:1px solid var(--c-line);
  display:flex;
  flex-wrap:wrap;
  justify-content:space-between;
  gap:12px 24px;
}
.footer-bottom p{
  font-size:13px;
  color:var(--c-muted);
  line-height:1.8;
}

/* ============ 响应式 ============ */
@media (max-width:1023px){
  .mobile-topbar{display:flex;}
  .app-sidebar{
    width:280px;
    transform:translateX(-280px);
    transition:transform 240ms ease;
    z-index:90;
    box-shadow:0 0 40px rgba(0,0,0,.5);
  }
  .app-sidebar.is-open{transform:translateX(0);}
  .sidebar-close{display:flex;}
  .main-area{
    margin-left:0;
    padding-top:calc(var(--topbar-h) + 20px);
  }
  .page-hero{margin:0 16px;border-radius:var(--r-md);}
  .hero-inner{padding:48px 24px 32px;}
  .container{padding:0 16px;}
}

@media (max-width:900px){
  .split-row{grid-template-columns:1fr;gap:24px;}
  .split-row.is-reverse .split-text{order:1;}
  .split-row.is-reverse .split-media{order:2;}
  .quick-grid{grid-template-columns:1fr;}
  .info-cards{grid-template-columns:1fr;}
  .check-grid{grid-template-columns:1fr;}
  .footer-grid{grid-template-columns:1fr 1fr;}
}

@media (max-width:640px){
  :root{--sp-section:44px;}
  body{font-size:16px;}
  .section{padding:44px 0;}
  .hero-inner{padding:40px 20px 28px;}
  .page-hero{min-height:240px;}
  .hero-actions .btn{width:100%;}
  .cta-band{padding:36px 20px;}
  .check-panel{padding:24px 20px;}
  .footer-grid{grid-template-columns:1fr;}
  .footer-bottom{flex-direction:column;gap:8px;}
  .btn{height:46px;}
  .info-card,.quick-item{padding:20px;}
}

@media (min-width:1440px){
  .container{max-width:1200px;}
}

/* roulang page: category2 */
:root{
  --c-primary:#19E39B;
  --c-accent:#FFB020;
  --c-alert:#FF5A7A;
  --c-bg:#0A0E14;
  --c-surface:#121821;
  --c-surface-2:#1A2330;
  --c-line:rgba(255,255,255,.08);
  --c-text:#E9F1F7;
  --c-muted:#8FA0B3;
  --r-sm:8px;
  --r-md:14px;
  --r-lg:20px;
  --shadow-hover:0 14px 34px rgba(0,0,0,.38);
  --sp-section:72px;
  --sp-section-mobile:44px;
  --sidebar-w:248px;
  --font-cn:"PingFang SC","Microsoft YaHei","Source Han Sans SC","Noto Sans SC",sans-serif;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  padding:0;
  background-color:var(--c-bg);
  color:var(--c-text);
  font-family:var(--font-cn);
  font-size:16px;
  line-height:1.9;
  letter-spacing:0;
  -webkit-font-smoothing:antialiased;
}
body::before{
  content:"";
  position:fixed;
  inset:0;
  pointer-events:none;
  background-image:linear-gradient(rgba(255,255,255,.028) 1px,transparent 1px),
                   linear-gradient(90deg,rgba(255,255,255,.028) 1px,transparent 1px);
  background-size:64px 64px;
  z-index:0;
}
img{max-width:100%;height:auto;display:block;}
a{
  color:var(--c-text);
  text-decoration:none;
  transition:color .2s ease,border-color .2s ease,background-color .2s ease;
}
a:hover{color:var(--c-primary);}
a:focus-visible,button:focus-visible,input:focus-visible,textarea:focus-visible,select:focus-visible,summary:focus-visible{
  outline:2px solid var(--c-primary);
  outline-offset:2px;
}
ul,ol{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4,h5{margin:0;font-weight:700;letter-spacing:-.01em;}
p{margin:0;}
strong{font-weight:600;}
.container{
  width:100%;
  max-width:1200px;
  margin:0 auto;
  padding:0 24px;
}
.num{font-variant-numeric:tabular-nums;letter-spacing:-.02em;}

/* ===== 移动端顶栏 ===== */
.mobile-bar{
  position:fixed;
  top:0;left:0;right:0;
  height:56px;
  z-index:60;
  display:flex;
  align-items:center;
  gap:12px;
  padding:0 16px;
  background:var(--c-surface);
  border-bottom:1px solid var(--c-line);
}
.hamburger{
  width:44px;height:44px;
  display:inline-flex;align-items:center;justify-content:center;
  background:transparent;
  border:1px solid var(--c-line);
  border-radius:var(--r-sm);
  color:var(--c-text);
  font-size:18px;
  cursor:pointer;
  transition:border-color .2s ease,color .2s ease;
}
.hamburger:hover{border-color:rgba(25,227,155,.45);color:var(--c-primary);}
.mobile-brand{
  font-size:15px;
  font-weight:700;
  color:var(--c-text);
  white-space:nowrap;
  overflow:hidden;
  text-overflow:ellipsis;
}
.mobile-cta{
  margin-left:auto;
  height:36px;
  display:inline-flex;
  align-items:center;
  padding:0 14px;
  border-radius:999px;
  background:var(--c-primary);
  color:#062018;
  font-size:13px;
  font-weight:600;
  white-space:nowrap;
}
.mobile-cta:hover{color:#062018;background:#2ff0aa;}

/* ===== 侧栏 App Shell ===== */
.app-shell{position:relative;z-index:1;}
.sidebar{
  position:fixed;
  top:0;left:0;bottom:0;
  width:var(--sidebar-w);
  background:var(--c-surface);
  border-right:1px solid var(--c-line);
  display:flex;
  flex-direction:column;
  overflow-y:auto;
  z-index:50;
}
.sidebar-brand{
  display:flex;
  align-items:center;
  gap:12px;
  height:72px;
  padding:0 20px;
  border-bottom:1px solid var(--c-line);
  flex:0 0 auto;
}
.brand-mark{
  width:34px;height:34px;
  display:inline-flex;align-items:center;justify-content:center;
  border-radius:10px;
  background:rgba(25,227,155,.12);
  color:var(--c-primary);
  font-size:16px;
  flex:0 0 auto;
}
.brand-text{display:flex;flex-direction:column;line-height:1.25;}
.brand-main{font-size:15px;font-weight:700;color:var(--c-text);}
.brand-sub{font-size:12px;color:var(--c-muted);letter-spacing:.02em;}
.sidebar-nav{
  display:flex;
  flex-direction:column;
  padding:16px 12px;
  gap:4px;
  flex:1 1 auto;
}
.nav-item{
  position:relative;
  display:flex;
  align-items:center;
  height:44px;
  padding-left:20px;
  padding-right:12px;
  font-size:15px;
  color:var(--c-muted);
  border-radius:10px;
  transition:background-color .2s ease,color .2s ease;
}
.nav-item:hover{background:rgba(255,255,255,.04);color:var(--c-text);}
.nav-item.is-active{
  background:rgba(25,227,155,.08);
  color:var(--c-primary);
  font-weight:600;
}
.nav-item.is-active::before{
  content:"";
  position:absolute;
  left:0;top:8px;bottom:8px;
  width:3px;
  border-radius:0 3px 3px 0;
  background:var(--c-primary);
}
.nav-sep{height:1px;background:var(--c-line);margin:12px 12px;}
.sidebar-foot{
  padding:16px;
  border-top:1px solid var(--c-line);
  flex:0 0 auto;
}
.sidebar-foot p{font-size:12px;color:var(--c-muted);line-height:1.7;margin-bottom:12px;}
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  height:48px;
  padding:0 24px;
  border:1px solid transparent;
  border-radius:var(--r-md);
  font-size:15px;
  font-weight:600;
  font-family:inherit;
  cursor:pointer;
  transition:transform .2s ease,background-color .2s ease,border-color .2s ease,color .2s ease,box-shadow .2s ease;
}
.btn-primary{background:var(--c-primary);color:#062018;}
.btn-primary:hover{background:#2ff0aa;color:#062018;transform:translateY(-1px);box-shadow:0 10px 24px rgba(25,227,155,.18);}
.btn-primary:active{transform:translateY(0);}
.btn-ghost{background:transparent;border-color:var(--c-line);color:var(--c-primary);}
.btn-ghost:hover{border-color:rgba(25,227,155,.5);background:rgba(25,227,155,.06);color:var(--c-primary);}
.btn-block{width:100%;}
.btn-sm{height:40px;padding:0 18px;font-size:14px;border-radius:var(--r-sm);}

/* ===== 主内容 ===== */
.main{margin-left:var(--sidebar-w);padding-top:24px;}

/* 面包屑 */
.crumbs{
  display:flex;flex-wrap:wrap;align-items:center;gap:8px;
  font-size:13px;color:var(--c-muted);
  padding:8px 0 20px;
}
.crumbs a{color:var(--c-muted);}
.crumbs a:hover{color:var(--c-primary);}
.crumbs .sep{color:rgba(255,255,255,.22);}
.crumbs .current{color:var(--c-muted);}

/* 纯色头部带 */
.page-band{
  background:var(--c-surface);
  border-top:1px solid var(--c-line);
  border-bottom:1px solid var(--c-line);
  padding:48px 0 44px;
}
.page-band .tag-row{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:18px;}
.badge{
  display:inline-flex;align-items:center;
  height:24px;padding:0 10px;
  border-radius:999px;
  font-size:12px;
  line-height:1;
  background:rgba(25,227,155,.12);
  color:var(--c-primary);
  white-space:nowrap;
}
.badge-amber{background:rgba(255,176,32,.12);color:var(--c-accent);}
.badge-alert{background:rgba(255,90,122,.12);color:var(--c-alert);}
.page-band h1{
  font-size:44px;
  line-height:1.15;
  font-weight:800;
  max-width:820px;
  margin-bottom:18px;
}
.page-band h1 .hl{color:var(--c-primary);}
.page-band .lead{
  font-size:17px;
  line-height:1.85;
  color:var(--c-muted);
  max-width:760px;
}
.band-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:26px;}

/* 板块 */
.section{padding:var(--sp-section) 0 0;}
.section-head{margin-bottom:28px;}
.section-head .idx{
  display:inline-block;
  font-size:13px;
  font-weight:700;
  color:var(--c-primary);
  letter-spacing:.08em;
  margin-bottom:10px;
}
.section-head h2{
  font-size:30px;
  line-height:1.25;
  margin-bottom:12px;
}
.section-head p{color:var(--c-muted);max-width:780px;font-size:15px;line-height:1.85;}
.section-head h2::after{
  content:"";
  display:block;
  width:36px;height:2px;
  background:var(--c-primary);
  margin-top:14px;
  border-radius:2px;
}

/* 对比表 */
.table-wrap{
  border:1px solid var(--c-line);
  border-radius:var(--r-md);
  background:var(--c-surface);
  overflow:hidden;
}
table.cmp{
  width:100%;
  border-collapse:collapse;
  font-size:15px;
}
table.cmp thead th{
  background:var(--c-surface-2);
  color:var(--c-text);
  font-size:14px;
  font-weight:600;
  text-align:left;
  padding:16px 20px;
  border-bottom:1px solid var(--c-line);
  white-space:nowrap;
}
table.cmp thead th.col-bad{color:var(--c-alert);}
table.cmp thead th.col-good{color:var(--c-primary);}
table.cmp tbody th{
  text-align:left;
  font-weight:600;
  font-size:15px;
  padding:18px 20px;
  color:var(--c-text);
  vertical-align:top;
  background:rgba(255,255,255,.015);
  width:22%;
}
table.cmp tbody td{
  padding:18px 20px;
  vertical-align:top;
  color:var(--c-muted);
  font-size:14.5px;
  line-height:1.8;
  border-top:1px solid var(--c-line);
}
table.cmp tbody th{border-top:1px solid var(--c-line);}
table.cmp tbody td.cell-bad{background:rgba(255,255,255,.02);}
table.cmp tbody td.cell-good{background:rgba(25,227,155,.06);color:var(--c-text);}
table.cmp tbody tr:hover td{background:rgba(255,255,255,.032);}
table.cmp tbody tr:hover td.cell-good{background:rgba(25,227,155,.09);}
.ico{font-size:13px;margin-right:6px;}
.ico-bad{color:var(--c-alert);}
.ico-good{color:var(--c-primary);}
.table-note{
  display:flex;align-items:flex-start;gap:10px;
  margin-top:16px;
  font-size:13px;
  color:var(--c-muted);
  line-height:1.8;
}
.table-note i{color:var(--c-accent);margin-top:5px;}

/* 两栏要点清单 */
.two-col{
  display:grid;
  grid-template-columns:repeat(2,minmax(0,1fr));
  gap:24px;
}
.panel{
  background:var(--c-surface);
  border:1px solid var(--c-line);
  border-radius:var(--r-md);
  padding:24px;
  transition:border-color .2s ease,transform .2s ease,box-shadow .2s ease;
}
.panel:hover{border-color:rgba(25,227,155,.35);transform:translateY(-3px);box-shadow:var(--shadow-hover);}
.panel h3{font-size:19px;margin-bottom:6px;}
.panel .panel-sub{font-size:13px;color:var(--c-muted);margin-bottom:18px;}
.chk-list li{
  display:flex;
  gap:12px;
  padding:13px 0;
  border-top:1px solid var(--c-line);
  font-size:14.5px;
  color:var(--c-muted);
  line-height:1.8;
}
.chk-list li:first-child{border-top:none;padding-top:0;}
.chk-list i{color:var(--c-primary);margin-top:6px;font-size:13px;flex:0 0 auto;}
.chk-list li strong{color:var(--c-text);font-weight:600;}

/* 图示条 */
.media-strip{
  display:grid;
  grid-template-columns:minmax(0,1fr) minmax(0,1.15fr);
  gap:32px;
  align-items:center;
  background:var(--c-surface);
  border:1px solid var(--c-line);
  border-radius:var(--r-lg);
  padding:24px;
}
.media-strip .thumb{
  position:relative;
  border-radius:var(--r-md);
  overflow:hidden;
  border:1px solid var(--c-line);
  aspect-ratio:4 / 3;
  background:rgba(25,227,155,.08);
  background-image:linear-gradient(135deg,rgba(25,227,155,.10) 0%,transparent 55%),linear-gradient(rgba(255,255,255,.04) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.04) 1px,transparent 1px);
  background-size:auto,18px 18px,18px 18px;
}
.media-strip .thumb img{width:100%;height:100%;object-fit:cover;}
.media-strip h3{font-size:20px;margin-bottom:14px;}
.media-strip .txt p{color:var(--c-muted);font-size:14.5px;line-height:1.85;margin-bottom:14px;}
.mini-list li{
  display:flex;gap:10px;
  font-size:14.5px;color:var(--c-muted);
  padding:8px 0;
}
.mini-list i{color:var(--c-accent);margin-top:6px;font-size:12px;}

/* FAQ 折叠块 */
.faq-grid{
  display:grid;
  grid-template-columns:repeat(2,minmax(0,1fr));
  gap:24px;
}
.faq-block{
  background:var(--c-surface);
  border:1px solid var(--c-line);
  border-radius:var(--r-md);
  padding:8px 24px 16px;
}
.faq-block > h3{
  font-size:18px;
  padding:20px 0 14px;
  border-bottom:1px solid var(--c-line);
  margin-bottom:4px;
}
details.faq-item{border-bottom:1px solid var(--c-line);}
details.faq-item:last-child{border-bottom:none;}
details.faq-item summary{
  list-style:none;
  cursor:pointer;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  min-height:56px;
  padding:12px 0;
  font-size:16px;
  font-weight:600;
  color:var(--c-text);
  transition:color .2s ease;
}
details.faq-item summary::-webkit-details-marker{display:none;}
details.faq-item summary:hover{color:var(--c-primary);}
details.faq-item summary .mark{
  flex:0 0 auto;
  width:24px;height:24px;
  display:inline-flex;align-items:center;justify-content:center;
  border:1px solid var(--c-line);
  border-radius:999px;
  font-size:12px;
  color:var(--c-muted);
  transition:border-color .2s ease,color .2s ease,transform .2s ease;
}
details.faq-item[open] summary{color:var(--c-primary);}
details.faq-item[open] summary .mark{border-color:rgba(25,227,155,.5);color:var(--c-primary);transform:rotate(45deg);}
details.faq-item .answer{
  font-size:15px;
  line-height:1.85;
  color:var(--c-muted);
  padding:0 0 22px;
  max-width:60ch;
}
details.faq-item .answer strong{color:var(--c-text);}

/* CTA 带 */
.cta-band{
  margin-top:var(--sp-section);
  background:linear-gradient(180deg,rgba(25,227,155,.08),rgba(25,227,155,.03));
  border-top:1px solid var(--c-line);
  border-bottom:1px solid var(--c-line);
  padding:56px 0;
  text-align:center;
}
.cta-band h2{font-size:30px;margin-bottom:14px;}
.cta-band p{
  color:var(--c-muted);
  max-width:680px;
  margin:0 auto 26px;
  font-size:15px;
  line-height:1.85;
}
.cta-actions{display:flex;justify-content:center;flex-wrap:wrap;gap:14px;}

/* 页脚 */
.site-footer{
  background:#070A0F;
  border-top:1px solid var(--c-line);
  margin-top:0;
  padding:56px 0 24px;
  position:relative;
  z-index:1;
}
.footer-grid{
  display:grid;
  grid-template-columns:1.5fr 1fr 1fr 1.2fr;
  gap:32px;
}
.footer-col h4{
  font-size:15px;
  margin-bottom:16px;
  color:var(--c-text);
}
.footer-logo{
  display:inline-flex;
  align-items:center;
  gap:10px;
  font-size:16px;
  font-weight:700;
  color:var(--c-text);
  margin-bottom:14px;
}
.footer-brand p{font-size:13.5px;color:var(--c-muted);line-height:1.85;max-width:340px;}
.footer-col ul li{
  font-size:13.5px;
  color:var(--c-muted);
  padding:6px 0;
  line-height:1.75;
}
.footer-col ul li a{
  color:var(--c-muted);
  display:inline-block;
  transition:color .18s ease,transform .18s ease;
}
.footer-col ul li a:hover{color:var(--c-primary);transform:translateX(2px);}
.footer-bottom{
  margin-top:36px;
  padding-top:20px;
  border-top:1px solid var(--c-line);
  display:flex;
  flex-wrap:wrap;
  gap:10px 24px;
}
.footer-bottom p{font-size:12.5px;color:rgba(143,160,179,.8);line-height:1.8;}

/* 移动抽屉 */
.offcanvas{
  position:fixed;
  top:0;left:0;bottom:0;
  width:280px;
  background:var(--c-surface);
  border-right:1px solid var(--c-line);
  transform:translateX(-100%);
  transition:transform .28s ease;
  z-index:80;
  display:flex;
  flex-direction:column;
  overflow-y:auto;
}
.offcanvas.is-open{transform:translateX(0);}
.offcanvas .sidebar-nav{padding-top:8px;}
.overlay{
  position:fixed;
  inset:0;
  background:rgba(0,0,0,.6);
  opacity:0;
  visibility:hidden;
  transition:opacity .28s ease,visibility .28s ease;
  z-index:70;
}
.overlay.is-open{opacity:1;visibility:visible;}

@media (min-width:1024px){
  .mobile-bar,.offcanvas,.overlay{display:none;}
}
@media (max-width:1023px){
  .sidebar{display:none;}
  .main{margin-left:0;padding-top:56px;}
  .page-band{padding:36px 0 32px;}
  .page-band h1{font-size:34px;}
  .footer-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
}
@media (max-width:900px){
  .two-col,.faq-grid{grid-template-columns:minmax(0,1fr);}
  .media-strip{grid-template-columns:minmax(0,1fr);}
}
@media (max-width:640px){
  .container{padding:0 16px;}
  .section{padding:var(--sp-section-mobile) 0 0;}
  .page-band h1{font-size:28px;}
  .page-band .lead{font-size:15.5px;}
  .section-head h2{font-size:24px;}
  .cta-band h2{font-size:24px;}
  .footer-grid{grid-template-columns:minmax(0,1fr);gap:24px;}
  .footer-bottom{flex-direction:column;}
  .band-actions .btn{width:100%;}
  .table-wrap{border-radius:var(--r-sm);}
  table.cmp thead{display:none;}
  table.cmp,table.cmp tbody,table.cmp tr,table.cmp th,table.cmp td{display:block;width:100%;}
  table.cmp tbody tr{
    padding:8px 0;
    border-top:1px solid var(--c-line);
  }
  table.cmp tbody th{
    background:transparent;
    font-size:15.5px;
    padding:12px 16px 6px;
    border-top:none;
  }
  table.cmp tbody td{
    padding:8px 16px;
    border-top:none;
  }
  table.cmp tbody td::before{
    content:attr(data-label);
    display:block;
    font-size:12px;
    color:var(--c-muted);
    margin-bottom:2px;
  }
  table.cmp tbody td.cell-good{margin:6px 16px 10px;border-radius:var(--r-sm);width:auto;}
  table.cmp tbody td.cell-bad{margin:0 16px 6px;border-radius:var(--r-sm);width:auto;}
  .cta-actions .btn{width:100%;}
}

/* roulang page: category3 */
/* ============ 设计变量 ============ */
:root{
  --c-primary:#19E39B;
  --c-primary-deep:#06231A;
  --c-accent:#FFB020;
  --c-alert:#FF5A7A;
  --c-bg:#0A0E14;
  --c-surface:#121821;
  --c-surface-2:#1A2330;
  --c-line:rgba(255,255,255,.08);
  --c-text:#E9F1F7;
  --c-muted:#8FA0B3;
  --c-primary-soft:rgba(25,227,155,.12);
  --c-primary-line:rgba(25,227,155,.35);
  --c-primary-ghost:rgba(25,227,155,.06);
  --c-accent-soft:rgba(255,176,32,.14);
  --c-alert-soft:rgba(255,90,122,.14);
  --r-s:8px;
  --r-m:14px;
  --r-l:20px;
  --sh-hover:0 14px 34px rgba(0,0,0,.38);
  --sidebar-w:248px;
  --container-w:1200px;
  --gap:24px;
  --sp-section:72px;
  --sp-section-m:44px;
  --t:200ms ease;
  --font-cn:"PingFang SC","Microsoft YaHei","Source Han Sans SC","Noto Sans SC",sans-serif;
}

/* ============ 基础重置 ============ */
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  background:var(--c-bg);
  color:var(--c-text);
  font-family:var(--font-cn);
  font-size:16px;
  line-height:1.9;
  font-weight:400;
  letter-spacing:0;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
body::before{
  content:"";
  position:fixed;
  inset:0;
  pointer-events:none;
  z-index:0;
  background-image:linear-gradient(rgba(255,255,255,.03) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.03) 1px,transparent 1px);
  background-size:48px 48px;
  opacity:.6;
}
h1,h2,h3,h4,h5,h6,p,ul,ol,li,figure,figcaption,blockquote{margin:0;padding:0}
ul,ol{list-style:none}
img{max-width:100%;height:auto;display:block}
a{color:var(--c-text);text-decoration:none;transition:color var(--t),border-color var(--t),background var(--t)}
a:hover{color:var(--c-primary);text-decoration:underline;text-underline-offset:4px}
button{font-family:inherit;cursor:pointer}
:focus-visible{outline:2px solid var(--c-primary);outline-offset:2px;border-radius:4px}
::selection{background:rgba(25,227,155,.28);color:#fff}

/* 覆盖 Foundation 默认外观 */
body,html{background-color:var(--c-bg)}
h1,h2,h3,h4,h5,h6{font-family:var(--font-cn);color:var(--c-text);line-height:1.25;margin:0}
p{line-height:1.9}
a.button,button.button,.button{background:transparent;color:inherit;border:none;padding:0;margin:0}
input[type="text"],input[type="tel"],input[type="email"],input[type="number"],select,textarea{
  width:100%;
  height:48px;
  margin:0;
  padding:0 14px;
  background:var(--c-surface-2);
  border:1px solid var(--c-line);
  border-radius:var(--r-s);
  color:var(--c-text);
  font-size:15px;
  line-height:48px;
  box-shadow:none;
  transition:border-color var(--t),box-shadow var(--t),background var(--t);
}
textarea{padding:12px 14px;line-height:1.8;resize:vertical;min-height:120px}
input::placeholder,textarea::placeholder{color:#63748a}
input[type="text"]:focus,input[type="tel"]:focus,select:focus,textarea:focus{
  outline:none;
  border-color:var(--c-primary);
  background:var(--c-surface-2);
  box-shadow:0 0 0 3px rgba(25,227,155,.14);
}
select{appearance:none;-webkit-appearance:none;background-image:linear-gradient(45deg,transparent 50%,var(--c-muted) 50%),linear-gradient(135deg,var(--c-muted) 50%,transparent 50%);
  background-position:calc(100% - 20px) 21px,calc(100% - 15px) 21px;background-size:5px 5px,5px 5px;background-repeat:no-repeat}
label{display:block;color:var(--c-muted);font-size:13px;line-height:1.8;margin-bottom:6px}
.grid-x{margin-left:0;margin-right:0}

/* ============ 容器 ============ */
.container{
  width:100%;
  max-width:var(--container-w);
  margin:0 auto;
  padding:0 var(--gap);
  position:relative;
  z-index:1;
}

/* ============ 侧栏导航 ============ */
.sidebar{
  position:fixed;
  top:0;
  left:0;
  width:var(--sidebar-w);
  height:100vh;
  background:var(--c-surface);
  border-right:1px solid var(--c-line);
  display:flex;
  flex-direction:column;
  z-index:70;
  overflow-y:auto;
  overflow-x:hidden;
  transition:transform 260ms ease;
}
.brand{
  display:flex;
  align-items:center;
  gap:10px;
  height:72px;
  padding:0 18px;
  border-bottom:1px solid var(--c-line);
  flex-shrink:0;
}
.brand:hover{text-decoration:none}
.brand-mark{
  display:grid;
  place-items:center;
  width:34px;
  height:34px;
  flex-shrink:0;
  border-radius:10px;
  background:var(--c-primary-soft);
  color:var(--c-primary);
  font-size:15px;
  border:1px solid var(--c-primary-line);
}
.brand-text{display:flex;flex-direction:column;line-height:1.35;min-width:0}
.brand-text strong{
  font-size:15px;
  font-weight:700;
  color:var(--c-text);
  letter-spacing:-.01em;
  white-space:nowrap;
}
.brand-text em{
  font-style:normal;
  font-size:11px;
  color:var(--c-muted);
  letter-spacing:.02em;
  white-space:nowrap;
}
.sidebar-nav{display:flex;flex-direction:column;gap:2px;padding:16px 0 8px;flex:1}
.nav-item{
  position:relative;
  display:flex;
  align-items:center;
  height:44px;
  padding:0 20px;
  margin:0 12px;
  border-radius:var(--r-s);
  font-size:15px;
  color:var(--c-muted);
  transition:background var(--t),color var(--t);
}
.nav-item:hover{background:rgba(255,255,255,.04);color:var(--c-text);text-decoration:none}
.nav-item.is-active{
  background:rgba(25,227,155,.08);
  color:var(--c-primary);
  font-weight:600;
}
.nav-item.is-active::before{
  content:"";
  position:absolute;
  left:-12px;
  top:9px;
  bottom:9px;
  width:3px;
  border-radius:0 3px 3px 0;
  background:var(--c-primary);
}
.nav-sep{height:1px;background:var(--c-line);margin:14px 20px}
.sidebar-cta{padding:16px;border-top:1px solid var(--c-line);flex-shrink:0}

/* ============ 移动端顶栏与抽屉 ============ */
.topbar{
  display:none;
  position:fixed;
  top:0;
  left:0;
  right:0;
  height:56px;
  align-items:center;
  gap:12px;
  padding:0 16px;
  background:rgba(10,14,20,.94);
  border-bottom:1px solid var(--c-line);
  z-index:80;
  backdrop-filter:saturate(140%) blur(6px);
}
.hamburger{
  width:44px;
  height:44px;
  display:grid;
  place-items:center;
  gap:5px;
  background:transparent;
  border:1px solid var(--c-line);
  border-radius:var(--r-s);
  padding:0;
}
.hamburger span{display:block;width:18px;height:2px;border-radius:2px;background:var(--c-text);transition:transform var(--t),opacity var(--t)}
.topbar-brand{font-size:15px;font-weight:700;color:var(--c-text);flex:1;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.topbar-brand:hover{text-decoration:none;color:var(--c-primary)}
.nav-mask{
  position:fixed;
  inset:0;
  background:rgba(0,0,0,.6);
  opacity:0;
  visibility:hidden;
  transition:opacity 240ms ease,visibility 240ms ease;
  z-index:65;
}
.nav-mask.is-open{opacity:1;visibility:visible}

/* ============ 主内容 ============ */
.site-main{margin-left:var(--sidebar-w);padding-top:24px;position:relative;z-index:1}
.section{padding:var(--sp-section) 0;position:relative}
.section + .section{border-top:1px solid var(--c-line)}
.section-head{margin-bottom:36px;max-width:760px}
.sec-index{
  display:inline-block;
  font-size:13px;
  font-weight:700;
  color:var(--c-primary);
  letter-spacing:.14em;
  font-variant-numeric:tabular-nums;
  margin-bottom:10px;
}
.section-head h2{
  font-size:30px;
  font-weight:700;
  line-height:1.3;
  letter-spacing:-.02em;
  margin-bottom:12px;
}
.section-head h2::after{
  content:"";
  display:block;
  width:36px;
  height:2px;
  border-radius:2px;
  background:var(--c-primary);
  margin-top:16px;
}
.section-desc{color:var(--c-muted);font-size:15px;line-height:1.9;margin-top:6px}
.section-head-row{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;flex-wrap:wrap}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  height:48px;
  padding:0 24px;
  border-radius:var(--r-m);
  border:1px solid transparent;
  font-size:15px;
  font-weight:600;
  line-height:1;
  white-space:nowrap;
  transition:background var(--t),border-color var(--t),color var(--t),transform var(--t),box-shadow var(--t);
}
.btn:hover{text-decoration:none}
.btn:active{transform:translateY(0)}
.btn-primary{background:var(--c-primary);color:var(--c-primary-deep)}
.btn-primary:hover{background:#31edb0;color:var(--c-primary-deep);transform:translateY(-1px)}
.btn-ghost{background:transparent;border-color:var(--c-line);color:var(--c-primary)}
.btn-ghost:hover{border-color:var(--c-primary);background:var(--c-primary-ghost);transform:translateY(-1px)}
.btn-sm{height:38px;padding:0 16px;font-size:14px;border-radius:var(--r-s)}
.btn-block{width:100%}

/* ============ 徽章与标签 ============ */
.badge{
  display:inline-flex;
  align-items:center;
  height:24px;
  padding:0 10px;
  border-radius:999px;
  font-size:12px;
  font-weight:600;
  line-height:1;
  background:var(--c-primary-soft);
  color:var(--c-primary);
  letter-spacing:.02em;
}
.badge-accent{background:var(--c-accent-soft);color:var(--c-accent)}
.badge-alert{background:var(--c-alert-soft);color:var(--c-alert)}
.badge-plain{background:rgba(255,255,255,.05);color:var(--c-muted)}

/* ============ Hero ============ */
.hero{
  position:relative;
  padding:56px 0 64px;
  border-radius:var(--r-l);
  overflow:hidden;
  background:linear-gradient(180deg,rgba(10,14,20,.74) 0%,rgba(10,14,20,.94) 62%,var(--c-bg) 100%),
             url('/assets/images/backpic/back-1.webp') center/cover no-repeat;
  border:1px solid var(--c-line);
}
.hero-grid{display:grid;grid-template-columns:minmax(0,1.35fr) minmax(0,1fr);gap:48px;align-items:center}
.hero-copy .badge{margin-bottom:20px}
.hero h1{
  font-size:clamp(30px,4.2vw,46px);
  font-weight:800;
  line-height:1.18;
  letter-spacing:-.02em;
  margin-bottom:18px;
}
.hero-sub{
  font-size:17px;
  line-height:1.9;
  color:#c3d1dd;
  max-width:620px;
  margin-bottom:28px;
}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:28px}
.hero-meta{display:flex;flex-wrap:wrap;gap:10px 26px;font-size:13px;color:var(--c-muted)}
.hero-meta li{display:flex;align-items:center;gap:8px}
.hero-meta i{color:var(--c-primary);font-size:14px}

.hero-panel{display:flex;flex-direction:column;gap:16px}
.panel-card{
  background:rgba(18,24,33,.92);
  border:1px solid var(--c-line);
  border-radius:var(--r-m);
  padding:24px;
}
.panel-title{
  font-size:13px;
  color:var(--c-muted);
  letter-spacing:.08em;
  margin-bottom:18px;
}
.progress-list{display:flex;flex-direction:column;gap:16px}
.progress-list li{display:grid;grid-template-columns:26px 1fr;gap:12px;align-items:start}
.progress-list .dot{
  display:grid;
  place-items:center;
  width:26px;
  height:26px;
  border-radius:50%;
  font-size:11px;
  font-weight:700;
  color:var(--c-primary);
  background:var(--c-primary-soft);
  border:1px solid var(--c-primary-line);
  font-variant-numeric:tabular-nums;
}
.progress-list .dot.is-mute{color:var(--c-muted);background:rgba(255,255,255,.05);border-color:var(--c-line)}
.progress-list .p-txt strong{display:block;font-size:14px;font-weight:600;line-height:1.6}
.progress-list .p-txt span{font-size:12px;color:var(--c-muted);line-height:1.7}
.panel-bar{height:2px;border-radius:2px;background:rgba(255,255,255,.08);margin-top:20px;overflow:hidden}
.panel-bar i{display:block;height:100%;width:50%;background:var(--c-primary)}

/* ============ 时间线（排查步骤） ============ */
.timeline{
  position:relative;
  display:grid;
  grid-template-columns:repeat(4,minmax(0,1fr));
  gap:var(--gap);
  padding-top:8px;
}
.timeline::before{
  content:"";
  position:absolute;
  left:6px;
  right:6px;
  top:30px;
  height:2px;
  background:linear-gradient(90deg,rgba(25,227,155,.65),rgba(25,227,155,.14));
}
.step{position:relative;padding-top:70px}
.step-num{
  position:absolute;
  top:0;
  left:0;
  width:46px;
  height:46px;
  display:grid;
  place-items:center;
  border-radius:50%;
  background:var(--c-surface);
  border:1px solid var(--c-primary-line);
  color:var(--c-primary);
  font-size:15px;
  font-weight:800;
  font-variant-numeric:tabular-nums;
  letter-spacing:-.02em;
  z-index:1;
}
.step h3{font-size:18px;font-weight:600;line-height:1.5;margin-bottom:10px}
.step p{font-size:14px;color:var(--c-muted);line-height:1.9;margin-bottom:14px}
.step .step-keys{display:flex;flex-wrap:wrap;gap:8px}
.step .step-keys span{
  display:inline-flex;
  align-items:center;
  height:24px;
  padding:0 10px;
  border-radius:999px;
  font-size:12px;
  color:var(--c-muted);
  background:rgba(255,255,255,.05);
  border:1px solid var(--c-line);
}

/* ============ 信息卡网格 ============ */
.card-grid-6 .cell{margin-bottom:var(--gap)}
.info-card{
  height:100%;
  background:var(--c-surface);
  border:1px solid var(--c-line);
  border-radius:var(--r-m);
  padding:24px;
  transition:border-color var(--t),transform var(--t),box-shadow var(--t);
}
.info-card:hover{
  border-color:var(--c-primary-line);
  transform:translateY(-3px);
  box-shadow:var(--sh-hover);
}
.info-card .ic-top{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-bottom:16px}
.info-card .ic-icon{
  display:grid;
  place-items:center;
  width:40px;
  height:40px;
  border-radius:12px;
  background:var(--c-primary-soft);
  color:var(--c-primary);
  font-size:17px;
  border:1px solid var(--c-primary-line);
}
.info-card h3{font-size:18px;font-weight:600;line-height:1.5;margin-bottom:10px}
.info-card p{font-size:14px;color:var(--c-muted);line-height:1.9}
.info-card .ic-foot{margin-top:16px;padding-top:14px;border-top:1px solid var(--c-line);font-size:13px;color:var(--c-muted);display:flex;align-items:center;gap:8px}
.info-card .ic-foot i{color:var(--c-accent)}

/* ============ 图文条 ============ */
.media-strip{
  display:grid;
  grid-template-columns:minmax(0,.9fr) minmax(0,1.1fr);
  gap:0;
  background:var(--c-surface);
  border:1px solid var(--c-line);
  border-radius:var(--r-l);
  overflow:hidden;
}
.media-strip .ms-figure{position:relative;min-height:320px;background:var(--c-surface-2) url('/assets/images/coverpic/cover-3.png') center/cover no-repeat}
.media-strip .ms-figure img{width:100%;height:100%;object-fit:cover;border-radius:0}
.media-strip .ms-body{padding:40px}
.media-strip h2{font-size:26px;font-weight:700;line-height:1.35;margin-bottom:14px}
.media-strip .ms-lead{color:var(--c-muted);font-size:15px;line-height:1.9;margin-bottom:24px}
.point-list{display:flex;flex-direction:column;gap:16px}
.point-list li{display:grid;grid-template-columns:24px 1fr;gap:12px;align-items:start}
.point-list i{color:var(--c-primary);font-size:16px;margin-top:6px}
.point-list strong{display:block;font-size:15px;font-weight:600;line-height:1.7}
.point-list span{font-size:13px;color:var(--c-muted);line-height:1.8}

/* ============ FAQ ============ */
.faq-list{border-top:1px solid var(--c-line)}
.faq-item{border-bottom:1px solid var(--c-line)}
.faq-item summary{
  list-style:none;
  cursor:pointer;
  min-height:56px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:20px;
  font-size:16px;
  font-weight:600;
  line-height:1.7;
  padding:14px 4px;
  transition:color var(--t);
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary:hover{color:var(--c-primary)}
.faq-item summary .plus{
  flex-shrink:0;
  width:22px;
  height:22px;
  position:relative;
  transition:transform var(--t);
}
.faq-item summary .plus::before,
.faq-item summary .plus::after{
  content:"";
  position:absolute;
  background:var(--c-primary);
  border-radius:2px;
  transition:opacity var(--t),transform var(--t);
}
.faq-item summary .plus::before{left:0;top:10px;width:22px;height:2px}
.faq-item summary .plus::after{left:10px;top:0;width:2px;height:22px}
.faq-item[open] summary .plus::after{opacity:0;transform:rotate(90deg)}
.faq-item .faq-body{padding:0 0 24px;font-size:15px;line-height:1.85;color:var(--c-muted);max-width:820px}

/* ============ CTA 带 ============ */
.cta-band{
  background:rgba(25,227,155,.06);
  border:1px solid rgba(25,227,155,.18);
  border-radius:var(--r-l);
  padding:44px 32px;
  text-align:center;
}
.cta-band h2{font-size:26px;font-weight:700;line-height:1.35;margin-bottom:12px}
.cta-band p{color:var(--c-muted);font-size:15px;line-height:1.9;max-width:640px;margin:0 auto 24px}
.cta-band .cta-actions{display:flex;justify-content:center;flex-wrap:wrap;gap:14px}

/* ============ 联系表单区 ============ */
.contact-grid{display:grid;grid-template-columns:minmax(0,.85fr) minmax(0,1.15fr);gap:40px;align-items:start}
.contact-copy h2{font-size:30px;font-weight:700;line-height:1.3;margin-bottom:14px}
.contact-copy > p{color:var(--c-muted);font-size:15px;line-height:1.9;margin-bottom:24px}
.contact-copy .point-list strong{font-size:14px}
.form-card{
  background:var(--c-surface);
  border:1px solid var(--c-line);
  border-radius:var(--r-l);
  padding:28px;
}
.field{margin-bottom:18px}
.field-row{display:grid;grid-template-columns:1fr 1fr;gap:18px}
.form-card .btn{margin-top:4px}
.form-status{
  margin-top:14px;
  font-size:13px;
  line-height:1.8;
  color:var(--c-muted);
  min-height:24px;
}
.form-status.is-ok{color:var(--c-primary)}
.form-status.is-error{color:var(--c-alert)}
.form-note{font-size:12px;color:var(--c-muted);line-height:1.8;margin-top:10px}
.back-row{margin-top:22px;display:flex;flex-wrap:wrap;gap:14px;align-items:center}

/* ============ 页脚 ============ */
.site-footer{
  margin-left:var(--sidebar-w);
  margin-top:24px;
  background:#070A0F;
  border-top:1px solid var(--c-line);
  position:relative;
  z-index:1;
}
.footer-grid{
  display:grid;
  grid-template-columns:1.5fr 1fr 1fr 1.2fr;
  gap:32px;
  padding:56px 0 40px;
}
.footer-col h4{
  font-size:14px;
  font-weight:700;
  color:var(--c-text);
  letter-spacing:.04em;
  margin-bottom:16px;
}
.footer-col ul{display:flex;flex-direction:column;gap:10px}
.footer-col li{font-size:13px;color:var(--c-muted);line-height:1.8}
.footer-col a{font-size:13px;color:var(--c-muted);display:inline-block;transition:color 180ms ease,transform 180ms ease}
.footer-col a:hover{color:var(--c-primary);transform:translateX(2px);text-decoration:none}
.footer-logo{
  display:inline-flex;
  align-items:center;
  gap:10px;
  font-size:16px;
  font-weight:700;
  color:var(--c-text);
  margin-bottom:14px;
}
.footer-logo:hover{text-decoration:none;color:var(--c-primary)}
.footer-logo .brand-mark{width:32px;height:32px;font-size:14px}
.footer-brand p{font-size:13px;color:var(--c-muted);line-height:1.9;max-width:340px}
.footer-bottom{
  border-top:1px solid var(--c-line);
  padding:22px 0 32px;
  display:flex;
  flex-wrap:wrap;
  gap:10px 28px;
  justify-content:space-between;
}
.footer-bottom p{font-size:12px;color:#6d7d90;line-height:1.8}

/* ============ 响应式 ============ */
@media screen and (max-width:1439px){
  .container{max-width:1120px}
}
@media screen and (max-width:1023px){
  :root{--sp-section:52px}
  .topbar{display:flex}
  .sidebar{transform:translateX(-100%);box-shadow:0 0 40px rgba(0,0,0,.5)}
  .sidebar.is-open{transform:translateX(0)}
  .site-main{margin-left:0;padding-top:76px}
  .site-footer{margin-left:0}
  .hero-grid{grid-template-columns:1fr;gap:32px}
  .hero{padding:40px 0 48px}
  .timeline{grid-template-columns:1fr;gap:28px;padding-left:6px}
  .timeline::before{left:28px;top:10px;bottom:10px;width:2px;height:auto;right:auto;
    background:linear-gradient(180deg,rgba(25,227,155,.65),rgba(25,227,155,.12))}
  .step{padding-top:0;padding-left:72px;min-height:56px}
  .step-num{top:0;left:6px;width:44px;height:44px}
  .media-strip{grid-template-columns:1fr}
  .media-strip .ms-figure{min-height:240px}
  .media-strip .ms-body{padding:32px}
  .contact-grid{grid-template-columns:1fr;gap:28px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px;padding:44px 0 32px}
}
@media screen and (max-width:639px){
  :root{--gap:16px;--sp-section:44px}
  body{font-size:15px}
  .hero{border-radius:var(--r-m)}
  .hero h1{font-size:27px}
  .hero-sub{font-size:15px}
  .hero-actions .btn{width:100%}
  .section-head h2{font-size:23px}
  .cta-band{padding:32px 20px}
  .cta-band h2{font-size:21px}
  .cta-band .cta-actions .btn{width:100%}
  .media-strip h2{font-size:21px}
  .contact-copy h2{font-size:23px}
  .field-row{grid-template-columns:1fr}
  .form-card{padding:20px}
  .btn{height:46px;padding:0 18px}
  .footer-grid{grid-template-columns:1fr}
  .footer-bottom{flex-direction:column;gap:8px}
  .progress-list li{grid-template-columns:24px 1fr}
}
@media screen and (min-width:1440px){
  .container{max-width:var(--container-w)}
}