/* roulang page: index */
:root{
  --brand-500:#14D39C;
  --brand-600:#0FB98A;
  --brand-100:#E6F9F2;
  --accent-500:#FF9F1C;
  --accent-600:#E5891A;
  --ink:#0B1416;
  --ink-soft:#122022;
  --bg:#F5F8F7;
  --surface:#FFFFFF;
  --line:#E3EBE8;
  --text:#0F1C1F;
  --text-2:#4E6165;
  --text-3:#8A9A9D;
  --warn:#FF6B57;
  --r-sm:8px;
  --r-md:10px;
  --r-lg:14px;
  --r-xl:16px;
  --r-2xl:20px;
  --shadow-1:0 1px 2px rgba(11,20,22,.05),0 10px 24px -14px rgba(11,20,22,.16);
  --shadow-2:0 2px 4px rgba(11,20,22,.06),0 18px 36px -16px rgba(11,20,22,.22);
  --sidebar-w:236px;
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,sans-serif;
  font-size:17px;
  line-height:1.85;
  color:var(--text);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
  font-variant-numeric:tabular-nums;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
button,input{font:inherit;color:inherit}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4,p{margin:0}
:focus-visible{outline:2px solid var(--brand-500);outline-offset:2px;border-radius:4px}

/* ============ 容器与骨架 ============ */
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 32px}
.page{padding-left:var(--sidebar-w)}
.section{padding:96px 0}
.section--tight{padding:72px 0}
.section--roomy{padding:104px 0}
.section-head{margin-bottom:40px}
.eyebrow{
  display:inline-flex;align-items:center;gap:10px;
  font-size:13px;letter-spacing:.08em;color:var(--brand-600);font-weight:600;margin-bottom:14px;
}
.eyebrow::before{content:"";width:24px;height:3px;border-radius:2px;background:var(--brand-500)}
.h2{font-size:34px;line-height:1.3;font-weight:700;letter-spacing:-.01em}
.h3{font-size:22px;line-height:1.4;font-weight:600}
.h4{font-size:18px;line-height:1.5;font-weight:600}
.lead{font-size:15px;line-height:1.8;color:var(--text-2);max-width:800px}
.muted{color:var(--text-2);font-size:15px;line-height:1.8}
.tiny{font-size:13px;line-height:1.5;color:var(--text-3)}

/* ============ 左侧竖向导航 ============ */
.sidebar{
  position:fixed;left:0;top:0;bottom:0;width:var(--sidebar-w);
  background:var(--ink);display:flex;flex-direction:column;
  padding:0 14px 18px;z-index:70;overflow-y:auto;
}
.sidebar::-webkit-scrollbar{width:6px}
.sidebar::-webkit-scrollbar-thumb{background:rgba(255,255,255,.12);border-radius:99px}
.brand{display:flex;align-items:center;gap:10px;height:88px;padding:0 6px;flex:none}
.brand__mark{width:32px;height:32px;flex:none}
.brand__name{font-size:18px;font-weight:700;color:#fff;letter-spacing:.01em}
.sidebar__divider{height:1px;background:rgba(255,255,255,.09);margin:6px 0 16px}
.nav-group-label{font-size:12px;color:#6C7B7E;padding:0 10px;margin:14px 0 8px;letter-spacing:.1em}
.nav-link{
  display:flex;align-items:center;min-height:44px;padding:0 12px;border-radius:var(--r-sm);
  font-size:15px;color:#C7D3D1;position:relative;transition:background .18s ease,color .18s ease;
}
.nav-link:hover{background:rgba(255,255,255,.06);color:#fff}
.nav-link.is-active{background:rgba(20,211,156,.14);color:var(--brand-500);font-weight:600}
.nav-link.is-active::before{
  content:"";position:absolute;left:0;top:50%;transform:translateY(-50%);
  width:3px;height:22px;border-radius:2px;background:var(--brand-500);
}
.sidebar__cta{
  margin-top:auto;display:flex;align-items:center;justify-content:center;
  min-height:42px;border-radius:var(--r-md);background:var(--brand-500);color:var(--ink);
  font-size:15px;font-weight:700;transition:background .18s ease,transform .18s ease;
}
.sidebar__cta:hover{background:var(--brand-600);transform:translateY(-1px)}
.sidebar__note{font-size:12px;line-height:1.6;color:#7A898C;padding:14px 8px 0}

/* ============ 移动端顶栏与抽屉 ============ */
.topbar{display:none}
.drawer-mask{
  position:fixed;inset:0;background:rgba(11,20,22,.55);opacity:0;visibility:hidden;
  transition:opacity .24s ease,visibility .24s ease;z-index:80;
}
.drawer-mask.is-open{opacity:1;visibility:visible}
.drawer{
  position:fixed;top:0;right:0;bottom:0;width:84%;max-width:340px;background:var(--ink);
  transform:translateX(100%);transition:transform .24s ease;z-index:90;
  display:flex;flex-direction:column;padding:18px 16px 20px;overflow-y:auto;
}
.drawer.is-open{transform:translateX(0)}
.drawer__head{display:flex;align-items:center;justify-content:space-between;margin-bottom:10px}
.drawer__close{
  width:44px;height:44px;display:grid;place-items:center;border-radius:var(--r-sm);
  background:rgba(255,255,255,.06);color:#fff;border:0;cursor:pointer;
}
.drawer .nav-link{min-height:48px}
.drawer__foot{margin-top:auto;padding-top:18px;border-top:1px solid rgba(255,255,255,.09)}

/* ============ Hero ============ */
.hero{position:relative;padding:72px 0 84px;overflow:hidden}
.hero__grid{
  position:absolute;top:0;left:0;width:42%;height:70%;pointer-events:none;
  background-image:linear-gradient(rgba(11,20,22,.045) 1px,transparent 1px),linear-gradient(90deg,rgba(11,20,22,.045) 1px,transparent 1px);
  background-size:24px 24px;
  -webkit-mask-image:radial-gradient(circle at 20% 20%,#000,transparent 70%);
  mask-image:radial-gradient(circle at 20% 20%,#000,transparent 70%);
}
.hero__inner{position:relative;display:grid;grid-template-columns:1.1fr .95fr;gap:56px;align-items:center}
.hero__tag{
  display:inline-flex;align-items:center;gap:8px;padding:6px 14px;border-radius:999px;
  background:var(--brand-100);color:var(--brand-600);font-size:13px;font-weight:600;margin-bottom:20px;
}
.hero h1{font-size:46px;line-height:1.25;font-weight:700;letter-spacing:-.015em;margin-bottom:18px}
.hero h1 em{font-style:normal;color:var(--brand-600)}
.hero__sub{font-size:17px;line-height:1.8;color:var(--text-2);max-width:520px;margin-bottom:30px}
.hero__actions{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:38px}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:48px;padding:0 26px;border-radius:var(--r-md);border:1px solid transparent;
  font-size:16px;font-weight:600;cursor:pointer;
  transition:background .18s ease,color .18s ease,border-color .18s ease,box-shadow .18s ease,transform .18s ease;
}
.btn--primary{background:var(--brand-500);color:var(--ink);box-shadow:0 0 0 8px rgba(20,211,156,.12)}
.btn--primary:hover{background:var(--brand-600);transform:translateY(-1px)}
.btn--primary:active{transform:translateY(0)}
.btn--ghost{background:transparent;color:var(--text);border-color:var(--line)}
.btn--ghost:hover{border-color:rgba(20,211,156,.45);color:var(--brand-600)}
.btn--dark-ghost{background:transparent;color:#fff;border-color:rgba(255,255,255,.28)}
.btn--dark-ghost:hover{border-color:#fff;background:rgba(255,255,255,.08)}
.btn[disabled]{opacity:.5;cursor:not-allowed;transform:none}
.hero__stats{display:flex;gap:38px;flex-wrap:wrap}
.stat__num{font-size:28px;font-weight:700;color:var(--brand-600);line-height:1.2}
.stat__label{font-size:14px;color:var(--text-3);margin-top:2px}
.hero__media{position:relative;border-radius:var(--r-xl);overflow:hidden;box-shadow:var(--shadow-2)}
.hero__media img{width:100%;height:100%;aspect-ratio:5/4;object-fit:cover}
.hero__media::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(160deg,rgba(11,20,22,.72),rgba(11,20,22,.62) 55%,rgba(18,32,34,.4));
}
.hero__bar{
  position:absolute;left:18px;right:18px;bottom:18px;z-index:2;
  display:flex;align-items:center;gap:10px;min-height:56px;padding:0 18px;
  border:1px solid rgba(255,255,255,.28);border-radius:var(--r-md);
  color:#fff;font-size:15px;letter-spacing:.02em;
}
.hero__bar span{width:8px;height:8px;border-radius:50%;background:var(--brand-500);flex:none}

/* ============ 卖点（双列编号） ============ */
.features{display:grid;grid-template-columns:.85fr 1.15fr;gap:64px}
.features__intro .h2{margin-bottom:18px}
.features__link{display:inline-flex;align-items:center;gap:6px;margin-top:22px;color:var(--brand-600);font-weight:600;font-size:15px}
.features__link:hover{color:var(--brand-500)}
.feature-item{display:grid;grid-template-columns:56px 1fr;gap:16px;padding:26px 0;border-top:1px solid var(--line)}
.feature-item:first-child{border-top:0;padding-top:0}
.feature-item:last-child{padding-bottom:0}
.feature-item__no{font-size:13px;font-weight:700;color:var(--brand-600);letter-spacing:.12em;padding-top:4px}
.feature-item h3{margin-bottom:8px}
.feature-item p{font-size:15px;line-height:1.85;color:var(--text-2)}

/* ============ 演示区 ============ */
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:0;margin-bottom:72px}
.step{position:relative;padding-right:26px}
.step::after{
  content:"";position:absolute;top:14px;right:8px;left:52px;height:1px;
  border-top:1px dashed rgba(20,211,156,.5);
}
.step:last-child::after{display:none}
.step__dot{
  width:28px;height:28px;border-radius:50%;border:1px solid var(--brand-500);
  display:grid;place-items:center;font-size:13px;font-weight:700;color:var(--brand-600);
  background:var(--surface);position:relative;z-index:1;margin-bottom:16px;
}
.step h3{font-size:16px;font-weight:600;margin-bottom:6px}
.step p{font-size:14px;line-height:1.7;color:var(--text-2)}
.split{display:grid;grid-template-columns:1fr 1fr;gap:52px;align-items:center;padding:34px 0}
.split + .split{border-top:1px solid var(--line)}
.split__img{border-radius:var(--r-lg);overflow:hidden;box-shadow:var(--shadow-1)}
.split__img img{width:100%;aspect-ratio:16/9;object-fit:cover;transition:transform .3s ease}
.split__img:hover img{transform:scale(1.03)}
.split h3{margin-bottom:14px}
.split p{margin-bottom:1.1em;color:var(--text-2);font-size:16px}
.checklist{display:grid;gap:10px;margin-top:18px}
.checklist li{display:flex;gap:10px;font-size:15px;color:var(--text-2);align-items:flex-start}
.checklist li::before{content:"";width:7px;height:7px;border-radius:2px;background:var(--brand-500);margin-top:9px;flex:none}

/* ============ 证据区 ============ */
.proof{background:var(--ink);border-radius:24px;padding:56px 48px;color:#fff;position:relative;overflow:hidden}
.proof::before{
  content:"";position:absolute;inset:0;opacity:.5;
  background-image:linear-gradient(rgba(255,255,255,.04) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.04) 1px,transparent 1px);
  background-size:24px 24px;
  -webkit-mask-image:radial-gradient(circle at 80% 0%,#000,transparent 62%);
  mask-image:radial-gradient(circle at 80% 0%,#000,transparent 62%);
}
.proof__stats{position:relative;display:grid;grid-template-columns:repeat(3,1fr);gap:0;padding-bottom:34px;border-bottom:1px solid rgba(255,255,255,.12);margin-bottom:38px}
.proof__stat{padding:0 28px;border-left:1px solid rgba(255,255,255,.12)}
.proof__stat:first-child{border-left:0;padding-left:0}
.proof__stat .num{font-size:30px;font-weight:700;color:var(--brand-500);line-height:1.2}
.proof__stat .unit{font-size:14px;color:#9FB0AE;margin-left:4px}
.proof__stat .cap{font-size:14px;color:#9FB0AE;margin-top:4px}
.proof__cards{position:relative;display:grid;grid-template-columns:1fr 1fr;gap:24px}
.proof-card{
  background:var(--ink-soft);border:1px solid rgba(255,255,255,.1);border-radius:var(--r-lg);padding:26px;
  transition:border-color .2s ease,transform .2s ease;
}
.proof-card:hover{border-color:rgba(20,211,156,.45);transform:translateY(-2px)}
.badge{
  display:inline-block;padding:4px 12px;border-radius:999px;font-size:12px;
  background:rgba(20,211,156,.16);color:var(--brand-500);margin-bottom:14px;
}
.proof-card h3{font-size:18px;font-weight:600;color:#fff;margin-bottom:10px}
.proof-card p{font-size:14px;line-height:1.75;color:#9FB0AE}
.proof-card .src{font-size:13px;color:#6C7B7E;margin-top:14px}
.quote{
  position:relative;margin-top:38px;padding-left:20px;border-left:3px solid var(--brand-500);
  font-size:15px;line-height:1.8;color:#D6E2E0;
}
.quote cite{display:block;font-style:normal;font-size:13px;color:#7A898C;margin-top:10px}

/* ============ 价格区 ============ */
.price-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;align-items:stretch}
.price-card{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-lg);
  padding:32px 28px;display:flex;flex-direction:column;position:relative;
  transition:box-shadow .2s ease,transform .2s ease,border-color .2s ease;
}
.price-card:hover{box-shadow:var(--shadow-2);transform:translateY(-3px)}
.price-card--main{border-color:var(--brand-500);box-shadow:var(--shadow-1)}
.price-card__ribbon{
  margin:-32px -28px 24px;padding:12px 28px;background:var(--brand-100);
  font-size:13px;font-weight:600;color:var(--brand-600);border-radius:var(--r-lg) var(--r-lg) 0 0;
}
.price-card__flag{
  position:absolute;top:14px;right:16px;background:var(--accent-500);color:#3A2400;
  font-size:12px;font-weight:700;padding:4px 12px;border-radius:999px;
}
.price-card__name{font-size:16px;font-weight:600;color:var(--text-2)}
.price-card__price{display:flex;align-items:baseline;gap:8px;margin:14px 0 22px}
.price-card__price .amount{font-size:36px;font-weight:700;line-height:1;color:var(--text)}
.price-card__price .cycle{font-size:14px;color:var(--text-3)}
.price-card ul{display:grid;gap:12px;margin-bottom:28px}
.price-card ul li{display:flex;gap:10px;font-size:15px;color:var(--text-2);line-height:1.6}
.price-card ul li::before{
  content:"";width:14px;height:8px;flex:none;margin-top:7px;
  border-left:2px solid var(--brand-500);border-bottom:2px solid var(--brand-500);
  transform:rotate(-45deg);border-radius:1px;
}
.price-card .btn{margin-top:auto;width:100%}
.price-note{margin-top:22px;text-align:center}

/* ============ 最新信息（CMS 区） ============ */
.news-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:36px;flex-wrap:wrap}
.news-more{font-size:15px;font-weight:600;color:var(--brand-600)}
.news-more:hover{color:var(--brand-500)}
.news-list{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.news-card{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-lg);
  overflow:hidden;transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.news-card:hover{transform:translateY(-2px);border-color:rgba(20,211,156,.45);box-shadow:var(--shadow-2)}
.news-card__link{display:block;padding:14px 18px 18px}
.news-card__cover{position:relative;border-radius:12px;overflow:hidden;margin-bottom:16px}
.news-card__cover img{width:100%;aspect-ratio:16/9;object-fit:cover;transition:transform .3s ease}
.news-card:hover .news-card__cover img{transform:scale(1.03)}
.news-card__badge{
  position:absolute;left:10px;bottom:10px;padding:4px 12px;border-radius:999px;
  background:rgba(11,20,22,.8);color:#fff;font-size:12px;
}
.news-card__title{
  font-size:17px;font-weight:600;line-height:1.55;margin-bottom:8px;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.news-card:hover .news-card__title{color:var(--brand-600)}
.news-card__excerpt{
  font-size:14px;line-height:1.7;color:var(--text-2);margin-bottom:14px;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.news-card__meta{
  display:flex;align-items:center;justify-content:space-between;
  font-size:13px;color:var(--text-3);padding-top:12px;border-top:1px solid var(--line);
}
.news-card__meta .arrow{color:var(--brand-600);font-weight:600}
.news-empty{
  min-height:220px;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:14px;
  background:var(--surface);border:1px dashed var(--line);border-radius:var(--r-lg);text-align:center;
}
.news-empty svg{width:48px;height:48px;stroke:rgba(20,211,156,.4);fill:none;stroke-width:1.6}
.news-empty p{font-size:15px;color:var(--text-2)}
.news-empty a{font-size:14px;font-weight:600;color:var(--brand-600)}

/* ============ FAQ ============ */
.faq{max-width:880px;margin:0 auto;display:grid;gap:12px}
.faq-item{background:var(--surface);border:1px solid var(--line);border-radius:12px;overflow:hidden;transition:border-color .2s ease}
.faq-item.is-open{border-color:rgba(20,211,156,.45)}
.faq-trigger{
  width:100%;min-height:56px;display:flex;align-items:center;justify-content:space-between;gap:20px;
  padding:16px 22px;background:transparent;border:0;cursor:pointer;text-align:left;
  font-size:16px;font-weight:600;color:var(--text);
}
.faq-trigger:hover{color:var(--brand-600)}
.faq-icon{font-size:20px;color:var(--brand-500);line-height:1;transition:transform .2s ease}
.faq-item.is-open .faq-icon{transform:rotate(45deg)}
.faq-panel{display:none;padding:0 22px 20px 22px;border-left:3px solid var(--brand-500);margin-left:22px;padding-left:16px}
.faq-item.is-open .faq-panel{display:block}
.faq-panel p{font-size:15px;line-height:1.85;color:var(--text-2)}

/* ============ 底部 CTA ============ */
.cta-box{
  background:var(--ink);border-radius:var(--r-2xl);padding:56px;
  display:grid;grid-template-columns:1.15fr 1fr;gap:48px;align-items:center;
  position:relative;overflow:hidden;
}
.cta-box::before{
  content:"";position:absolute;inset:0;
  background-image:linear-gradient(rgba(255,255,255,.04) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.04) 1px,transparent 1px);
  background-size:24px 24px;
  -webkit-mask-image:radial-gradient(circle at 10% 100%,#000,transparent 60%);
  mask-image:radial-gradient(circle at 10% 100%,#000,transparent 60%);
}
.cta-box__text{position:relative}
.cta-box h2{font-size:30px;line-height:1.35;font-weight:700;color:#fff;margin-bottom:14px}
.cta-box p{font-size:15px;line-height:1.8;color:#9FB0AE;max-width:460px}
.cta-form{position:relative;display:grid;gap:10px}
.cta-form label{font-size:14px;color:#9FB0AE}
.field-row{display:flex;gap:12px}
.field-row input{
  flex:1;min-height:44px;padding:0 16px;border-radius:var(--r-md);
  border:1px solid rgba(255,255,255,.2);background:rgba(255,255,255,.06);color:#fff;
  transition:border-color .18s ease,box-shadow .18s ease;
}
.field-row input::placeholder{color:#7A898C}
.field-row input:focus{outline:none;border-color:var(--brand-500);box-shadow:0 0 0 3px rgba(20,211,156,.18)}
.form-error{font-size:13px;color:var(--warn);min-height:18px;margin-top:2px}
.form-ok{font-size:13px;color:var(--brand-500);min-height:18px}

/* ============ 页脚 ============ */
.footer{background:var(--ink);color:#9FB0AE;margin-top:96px;padding:64px 0 24px}
.footer__grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:40px}
.footer h3{font-size:14px;font-weight:600;color:#fff;margin-bottom:16px}
.footer a{font-size:14px;color:#9FB0AE;display:block;padding:6px 0;transition:color .18s ease}
.footer a:hover{color:var(--brand-500)}
.footer__brand{display:flex;align-items:center;gap:10px;margin-bottom:14px}
.footer__brand span{color:#fff;font-size:17px;font-weight:700}
.footer__desc{font-size:14px;line-height:1.8;color:#7A898C;max-width:300px}
.footer__bottom{
  margin-top:44px;padding-top:20px;border-top:1px solid rgba(255,255,255,.1);
  text-align:center;font-size:12px;color:#6C7B7E;
}

/* ============ 浮动 CTA ============ */
.float-cta{
  position:fixed;right:24px;bottom:24px;z-index:60;
  display:inline-flex;align-items:center;gap:8px;min-height:48px;padding:0 22px;
  border-radius:999px;background:var(--brand-500);color:var(--ink);font-weight:700;font-size:15px;
  box-shadow:var(--shadow-2);opacity:0;visibility:hidden;transform:translateY(12px);
  transition:opacity .2s ease,transform .2s ease,background .18s ease,visibility .2s ease;
}
.float-cta.is-show{opacity:1;visibility:visible;transform:translateY(0)}
.float-cta:hover{background:var(--brand-600)}

/* ============ 响应式 ============ */
@media (max-width:1279px){
  .container{padding:0 24px}
  .hero h1{font-size:40px}
  .news-list{grid-template-columns:repeat(2,1fr)}
}
@media (max-width:1023px){
  :root{--sidebar-w:0px}
  .page{padding-left:0}
  .sidebar{display:none}
  .topbar{
    display:flex;align-items:center;justify-content:space-between;
    position:sticky;top:0;z-index:75;height:60px;padding:0 18px;background:var(--ink);
  }
  .topbar__brand{display:flex;align-items:center;gap:10px}
  .topbar__brand span{color:#fff;font-size:16px;font-weight:700}
  .topbar__burger{
    width:44px;height:44px;display:grid;place-items:center;border:0;border-radius:var(--r-sm);
    background:rgba(255,255,255,.06);color:#fff;cursor:pointer;
  }
  .topbar__burger span{display:block;width:18px;height:2px;background:#fff;border-radius:2px;position:relative}
  .topbar__burger span::before,
  .topbar__burger span::after{content:"";position:absolute;left:0;width:18px;height:2px;background:#fff;border-radius:2px}
  .topbar__burger span::before{top:-6px}
  .topbar__burger span::after{top:6px}
  .section{padding:72px 0}
  .section--roomy{padding:80px 0}
  .hero{padding:56px 0 64px}
  .hero__inner{grid-template-columns:1fr;gap:36px}
  .hero__media img{aspect-ratio:16/10}
  .features{grid-template-columns:1fr;gap:36px}
  .steps{grid-template-columns:repeat(2,1fr);gap:32px 24px;margin-bottom:56px}
  .step::after{display:none}
  .split{grid-template-columns:1fr;gap:28px;padding:28px 0}
  .proof{padding:40px 28px}
  .proof__stats{grid-template-columns:1fr;gap:22px}
  .proof__stat{border-left:0;padding:0}
  .proof__cards{grid-template-columns:1fr}
  .price-grid{grid-template-columns:1fr;gap:20px}
  .cta-box{grid-template-columns:1fr;padding:40px 28px}
  .footer__grid{grid-template-columns:1fr 1fr;gap:32px}
  .float-cta{
    right:0;left:0;bottom:0;width:100%;border-radius:16px 16px 0 0;
    justify-content:center;padding-bottom:16px;min-height:56px;
  }
}
@media (max-width:767px){
  .h2{font-size:26px}
  .hero h1{font-size:30px;line-height:1.35}
  .hero__sub{font-size:16px}
  .hero__stats{gap:22px}
  .stat__num{font-size:24px}
  .news-list{grid-template-columns:1fr;gap:16px}
  .proof__stat .num{font-size:26px}
  .cta-box h2{font-size:24px}
  .field-row{flex-direction:column}
  .field-row .btn{width:100%}
}
@media (max-width:520px){
  .container{padding:0 18px}
  .section{padding:56px 0}
  .section--roomy{padding:64px 0}
  .hero{padding:44px 0 56px}
  .feature-item{grid-template-columns:44px 1fr;gap:12px}
  .footer__grid{grid-template-columns:1fr}
  .price-card{padding:26px 20px}
  .price-card__ribbon{margin:-26px -20px 22px;padding:12px 20px}
}

/* roulang page: article */
:root{
  --brand-500:#14D39C;
  --brand-600:#0FB98A;
  --brand-100:#E6F9F2;
  --accent-500:#FF9F1C;
  --accent-600:#E5891A;
  --ink-900:#0B1416;
  --ink-800:#122022;
  --paper:#F5F8F7;
  --card:#FFFFFF;
  --line:#E3EBE8;
  --t-1:#0F1C1F;
  --t-2:#4E6165;
  --t-3:#8A9A9D;
  --warn:#FF6B57;
  --r-sm:8px;
  --r-md:10px;
  --r-lg:14px;
  --r-xl:16px;
  --sh-1:0 1px 2px rgba(11,20,22,.05), 0 10px 24px -14px rgba(11,20,22,.16);
  --sh-2:0 2px 4px rgba(11,20,22,.06), 0 18px 36px -16px rgba(11,20,22,.22);
  --sidebar-w:236px;
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  background:var(--paper);
  color:var(--t-1);
  font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,sans-serif;
  font-size:17px;
  line-height:1.85;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;height:auto;display:block}
a{color:inherit;text-decoration:none;transition:color .2s ease,background-color .2s ease,border-color .2s ease}
button{font-family:inherit;cursor:pointer}
:focus-visible{outline:2px solid var(--brand-500);outline-offset:2px;border-radius:4px}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 32px}
.content{display:flex;flex-direction:column;min-height:100vh;padding-left:0}
.content > main{flex:1 1 auto}

/* 左侧竖向导航 */
.sidebar{
  display:none;
  position:fixed;
  left:0;top:0;bottom:0;
  width:var(--sidebar-w);
  background:var(--ink-900);
  color:#C7D3D1;
  flex-direction:column;
  padding:0 16px 20px;
  overflow-y:auto;
  z-index:40;
}
.sidebar__brand{display:flex;align-items:center;gap:10px;height:88px;flex-shrink:0;color:#fff;font-size:18px;font-weight:700;letter-spacing:.2px}
.sidebar__brand svg{flex-shrink:0}
.sidebar__divider{height:1px;background:rgba(255,255,255,.08);margin-bottom:14px}
.sidebar__nav{display:flex;flex-direction:column;gap:4px;flex:1 1 auto}
.sidebar__foot{padding-top:18px}
.sidebar__cta{
  display:flex;align-items:center;justify-content:center;
  height:40px;border-radius:var(--r-sm);
  background:var(--brand-500);color:var(--ink-900);
  font-size:14px;font-weight:700;
}
.sidebar__cta:hover{background:var(--brand-600)}
.sidebar__cta:active{transform:translateY(1px)}
.sidebar__note{margin:12px 0 0;font-size:12px;line-height:1.7;color:#6C7B7E}

.nav-link{
  position:relative;
  display:flex;align-items:center;
  height:44px;padding-left:20px;border-radius:var(--r-sm);
  font-size:15px;color:#C7D3D1;
}
.nav-link:hover{background:rgba(255,255,255,.06);color:#fff}
.nav-link.is-active{background:rgba(20,211,156,.14);color:var(--brand-500);font-weight:600}
.nav-link.is-active::before{
  content:"";position:absolute;left:0;top:10px;bottom:10px;width:3px;
  border-radius:2px;background:var(--brand-500);
}

/* 移动端顶部条与抽屉 */
.topbar{
  display:flex;position:sticky;top:0;z-index:50;
  height:60px;align-items:center;justify-content:space-between;
  padding:0 16px;background:var(--ink-900);color:#fff;
}
.topbar .brand__name{font-size:16px;font-weight:700}
.hamburger{
  width:44px;height:44px;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:5px;
  background:transparent;border:0;
}
.hamburger span{display:block;width:20px;height:2px;border-radius:2px;background:#fff}
.hamburger:hover span{background:var(--brand-500)}
.drawer-mask{
  position:fixed;inset:0;background:rgba(11,20,22,.55);z-index:60;
  opacity:0;pointer-events:none;transition:opacity .24s ease;
}
.drawer-mask.is-open{opacity:1;pointer-events:auto}
.drawer{
  position:fixed;top:0;right:0;bottom:0;width:84%;max-width:340px;z-index:70;
  background:var(--ink-900);
  display:flex;flex-direction:column;
  padding:16px;overflow-y:auto;
  transform:translateX(100%);transition:transform .24s ease;
}
.drawer.is-open{transform:translateX(0)}
.drawer__head{display:flex;align-items:center;justify-content:space-between;height:52px;margin-bottom:8px;color:#fff;font-weight:700}
.drawer .nav-link{height:48px}
.drawer__close{width:44px;height:44px;background:transparent;border:0;color:#C7D3D1;font-size:18px}
.drawer__close:hover{color:#fff}
.drawer__foot{margin-top:auto;padding-top:20px}

/* 面包屑与文章头 */
.breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:14px;color:var(--t-3);padding:28px 0 0}
.breadcrumb a:hover{color:var(--brand-600)}
.breadcrumb span[aria-current]{color:var(--t-2);max-width:420px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.article-head{border-bottom:1px solid var(--line);padding-bottom:22px;margin-bottom:8px}
.article-head h1{font-size:34px;line-height:1.35;font-weight:700;margin:14px 0 16px;letter-spacing:.2px}
.article-meta{display:flex;flex-wrap:wrap;align-items:center;gap:14px;font-size:14px;color:var(--t-3)}
.badge{
  display:inline-flex;align-items:center;height:26px;padding:0 12px;
  border-radius:999px;background:var(--brand-100);color:#0B7F60;
  font-size:13px;font-weight:600;
}
.notice{
  display:flex;gap:12px;align-items:flex-start;
  background:#fff;border:1px solid var(--line);border-left:3px solid var(--brand-500);
  border-radius:var(--r-md);padding:16px 18px;margin:24px 0 0;
  font-size:14px;line-height:1.8;color:var(--t-2);
}
.notice strong{color:var(--t-1)}

/* 正文 */
.article-body{max-width:800px;padding:26px 0 8px;font-size:17px;line-height:1.9;color:#26383B}
.article-body p{margin:0 0 1.2em}
.article-body h2{position:relative;font-size:24px;line-height:1.45;font-weight:700;margin:40px 0 14px;padding-left:14px;color:var(--t-1)}
.article-body h2::before{content:"";position:absolute;left:0;top:.5em;width:4px;height:20px;border-radius:2px;background:var(--brand-500)}
.article-body h3{font-size:20px;line-height:1.5;font-weight:600;margin:28px 0 12px;color:var(--t-1)}
.article-body ul,.article-body ol{margin:0 0 1.2em;padding-left:22px}
.article-body li{margin-bottom:8px}
.article-body ul li::marker,.article-body ol li::marker{color:var(--brand-500)}
.article-body blockquote{
  margin:24px 0;padding:20px;
  background:var(--brand-100);border-left:3px solid var(--brand-500);
  border-radius:0 var(--r-md) var(--r-md) 0;color:#1B3A33;
}
.article-body blockquote p:last-child{margin-bottom:0}
.article-body img{border-radius:12px;margin:20px 0}
.article-body figure{margin:24px 0}
.article-body figcaption{font-size:13px;color:var(--t-3);text-align:center;margin-top:8px}
.article-body table{width:100%;border-collapse:collapse;margin:20px 0;font-size:15px;min-width:520px}
.article-body th,.article-body td{border:1px solid var(--line);padding:12px}
.article-body th{background:var(--brand-100);text-align:left;font-weight:600}
.article-body code{background:#EEF3F1;border-radius:2px;padding:2px 6px;font-family:ui-monospace,Menlo,Consolas,monospace;font-size:.92em}
.article-body .table-scroll{overflow-x:auto;margin:20px 0}

/* 正文尾部 */
.article-foot{margin-top:32px;padding-top:24px;border-top:1px solid var(--line);display:flex;flex-wrap:wrap;gap:16px;align-items:center;justify-content:space-between}
.tag-row{display:flex;flex-wrap:wrap;gap:10px}
.tag{
  display:inline-flex;align-items:center;height:32px;padding:0 14px;
  border-radius:999px;background:#EAF0EE;color:var(--t-2);font-size:13px;
}
.tag:hover{background:var(--brand-100);color:var(--brand-600)}
.article-actions{display:flex;gap:22px;align-items:center;font-size:15px;font-weight:600;color:var(--brand-600)}
.article-actions a:hover{color:var(--brand-500)}

/* 空态 */
.empty{
  min-height:220px;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:14px;
  text-align:center;background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);
  padding:40px;color:var(--t-2);font-size:15px;
}
.empty p{margin:0}

/* 卡片 */
.news-card{
  display:flex;flex-direction:column;height:100%;
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-lg);overflow:hidden;
  transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.news-card:hover{transform:translateY(-2px);border-color:rgba(20,211,156,.45);box-shadow:var(--sh-2)}
.news-card__cover{position:relative;aspect-ratio:16/9;overflow:hidden;background:var(--brand-100)}
.news-card__cover img{width:100%;height:100%;object-fit:cover;transition:transform .3s ease}
.news-card:hover .news-card__cover img{transform:scale(1.04)}
.news-card__badge{
  position:absolute;left:10px;bottom:10px;
  background:rgba(11,20,22,.8);color:#fff;font-size:12px;
  padding:4px 10px;border-radius:999px;
}
.news-card__body{padding:16px 18px 18px;display:flex;flex-direction:column;gap:8px;flex:1 1 auto}
.news-card__title{
  font-size:17px;font-weight:600;line-height:1.55;color:var(--t-1);
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.news-card__desc{
  font-size:14px;line-height:1.7;color:var(--t-2);
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.news-card__foot{
  margin-top:auto;display:flex;align-items:center;justify-content:space-between;
  font-size:13px;color:var(--t-3);padding-top:6px;
}
.news-card__link{color:var(--brand-600);font-weight:600;font-size:13px}

/* 板块通用 */
.section{padding:72px 0 0}
.section--tight{padding-top:56px}
.section__title{font-size:26px;font-weight:700;line-height:1.4;margin:0 0 6px;color:var(--t-1)}
.section__sub{margin:0 0 26px;font-size:15px;color:var(--t-2)}

/* 按钮 */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 22px;border-radius:var(--r-md);
  font-size:15px;font-weight:600;border:1px solid transparent;
  transition:background-color .2s ease,border-color .2s ease,color .2s ease,transform .15s ease,box-shadow .2s ease;
}
.btn--primary{background:var(--brand-500);color:var(--ink-900);box-shadow:0 0 0 8px rgba(20,211,156,.12)}
.btn--primary:hover{background:var(--brand-600)}
.btn--primary:active{transform:translateY(1px)}
.btn--outline{background:transparent;border-color:rgba(255,255,255,.28);color:#fff}
.btn--outline:hover{border-color:#fff;background:rgba(255,255,255,.06)}
.btn--ghost{background:#fff;border-color:var(--line);color:var(--t-1)}
.btn--ghost:hover{border-color:rgba(20,211,156,.45);color:var(--brand-600)}
.btn[disabled],.btn:disabled{opacity:.5;cursor:not-allowed;box-shadow:none}

/* CTA */
.cta{
  position:relative;overflow:hidden;
  display:flex;align-items:center;justify-content:space-between;gap:32px;
  margin:80px 0 0;padding:56px;border-radius:20px;
  background:linear-gradient(160deg,#0B1416,#122022);color:#fff;
}
.cta::before{
  content:"";position:absolute;inset:0;pointer-events:none;opacity:.6;
  background-image:linear-gradient(rgba(255,255,255,.04) 1px,transparent 1px),
                   linear-gradient(90deg,rgba(255,255,255,.04) 1px,transparent 1px);
  background-size:24px 24px;
}
.cta > *{position:relative;z-index:1}
.cta h2{margin:0 0 10px;font-size:28px;line-height:1.35;font-weight:700}
.cta p{margin:0;font-size:15px;line-height:1.8;color:#9FB0AE;max-width:520px}

/* 浮动 CTA */
.float-cta{
  position:fixed;right:24px;bottom:24px;z-index:45;
  display:inline-flex;align-items:center;gap:8px;
  height:48px;padding:0 20px;border-radius:999px;
  background:#fff;border:1px solid rgba(20,211,156,.65);color:var(--brand-600);
  font-size:14px;font-weight:600;box-shadow:var(--sh-1);
  opacity:0;transform:translateY(12px);pointer-events:none;
  transition:opacity .2s ease,transform .2s ease,background-color .2s ease;
}
.float-cta.is-visible{opacity:1;transform:translateY(0);pointer-events:auto}
.float-cta:hover{background:var(--brand-100)}

/* 页脚 */
.footer{background:var(--ink-900);color:#9FB0AE;margin-top:96px;padding-top:64px}
.footer__grid{display:grid;grid-template-columns:1.3fr 1fr 1fr 1.1fr;gap:32px;padding-bottom:40px}
.footer__brand{display:flex;align-items:center;gap:10px;color:#fff;font-size:18px;font-weight:700;margin-bottom:14px}
.footer__desc{font-size:14px;line-height:1.8;color:#9FB0AE;margin:0}
.footer h3{margin:0 0 14px;font-size:14px;font-weight:600;color:#fff}
.footer a{display:block;font-size:14px;color:#9FB0AE;padding:5px 0}
.footer a:hover{color:var(--brand-500)}
.footer__bottom{border-top:1px solid rgba(255,255,255,.08);padding:20px 0;text-align:center;font-size:12px;color:#6C7B7E}
.tiny{font-size:12px}

@media (min-width:1024px){
  .content{padding-left:var(--sidebar-w)}
  .sidebar{display:flex}
  .topbar{display:none}
  .drawer,.drawer-mask{display:none}
}
@media (max-width:1023px){
  .article-head h1{font-size:28px}
  .float-cta{
    left:0;right:0;bottom:0;width:100%;height:56px;
    justify-content:center;border-radius:14px 14px 0 0;
    padding-bottom:16px;border-left:0;border-right:0;border-bottom:0;
  }
  .cta{margin-top:64px}
  .footer{margin-top:72px}
}
@media (max-width:900px){
  .footer__grid{grid-template-columns:1fr 1fr}
}
@media (max-width:768px){
  .container{padding:0 24px}
  .article-head h1{font-size:26px}
  .article-body{font-size:16px}
  .article-body h2{font-size:22px}
  .article-body h3{font-size:19px}
  .cta{flex-direction:column;align-items:flex-start;padding:32px 24px}
  .cta h2{font-size:24px}
  .cta .btn{width:100%}
  .section{padding-top:56px}
  .section__title{font-size:22px}
}
@media (max-width:520px){
  .container{padding:0 18px}
  .footer__grid{grid-template-columns:1fr;gap:24px}
  .article-foot{flex-direction:column;align-items:flex-start}
  .breadcrumb span[aria-current]{max-width:220px}
}

/* roulang page: category2 */
:root{
  --brand:#14D39C;
  --brand-600:#0FB98A;
  --brand-100:#E6F9F2;
  --amber:#FF9F1C;
  --amber-600:#E5891A;
  --dark:#0B1416;
  --dark-2:#122022;
  --bg:#F5F8F7;
  --card:#FFFFFF;
  --line:#E3EBE8;
  --text:#0F1C1F;
  --muted:#4E6165;
  --weak:#8A9A9D;
  --warn:#FF6B57;
  --r-sm:8px;
  --r-md:10px;
  --r-lg:14px;
  --r-xl:16px;
  --r-2xl:20px;
  --shadow-1:0 1px 2px rgba(11,20,22,.05), 0 10px 24px -14px rgba(11,20,22,.16);
  --shadow-2:0 2px 4px rgba(11,20,22,.06), 0 18px 36px -16px rgba(11,20,22,.22);
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,sans-serif;
  font-size:17px;
  line-height:1.85;
  font-variant-numeric:tabular-nums;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
button{font:inherit;cursor:pointer;border:0;background:none;color:inherit}
h1,h2,h3,h4{margin:0;line-height:1.3}
p{margin:0 0 1.1em}
p:last-child{margin-bottom:0}
ul{margin:0;padding:0;list-style:none}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px;border-radius:4px}

/* ---------- 布局骨架 ---------- */
.sidebar{
  position:fixed;left:0;top:0;bottom:0;width:236px;
  background:var(--dark);
  display:none;flex-direction:column;
  padding:0 16px 20px;
  z-index:60;
}
.main{padding-left:0}
@media (min-width:1024px){
  .sidebar{display:flex}
  .main{padding-left:236px}
  .topbar{display:none !important}
  .drawer{display:none !important}
}
.container{max-width:1200px;margin:0 auto;padding:0 24px}
@media (min-width:1280px){.container{padding:0 32px}}
.section{padding:56px 0}
@media (min-width:768px){.section{padding:72px 0}}
@media (min-width:1024px){.section{padding:96px 0}}
.section--tight{padding:48px 0}
@media (min-width:1024px){.section--tight{padding:72px 0}}
.prose{max-width:800px}
.lead{color:var(--muted);font-size:16px;line-height:1.85}
@media (min-width:1024px){.lead{font-size:17px}}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:48px;padding:0 22px;border-radius:var(--r-md);
  font-size:16px;font-weight:600;letter-spacing:.02em;
  transition:background .2s ease,color .2s ease,border-color .2s ease,box-shadow .2s ease,transform .2s ease;
  border:1px solid transparent;
}
.btn--primary{background:var(--brand);color:var(--dark);box-shadow:0 0 0 8px rgba(20,211,156,.12)}
.btn--primary:hover{background:var(--brand-600)}
.btn--primary:active{transform:translateY(1px);background:#0DA57A}
.btn--ghost{border-color:rgba(255,255,255,.28);color:#fff}
.btn--ghost:hover{border-color:var(--brand);color:var(--brand)}
.btn--ghost:active{transform:translateY(1px)}
.btn--outline{border-color:var(--line);color:var(--text);background:#fff}
.btn--outline:hover{border-color:rgba(20,211,156,.45);color:var(--brand-600);box-shadow:var(--shadow-1)}
.btn[disabled]{opacity:.5;cursor:not-allowed}
.btn--sm{min-height:40px;font-size:14px;padding:0 16px}

/* ---------- 侧栏内部 ---------- */
.sidebar__brand{display:flex;align-items:center;gap:10px;height:88px;color:#fff}
.brand__name{font-size:18px;font-weight:700;letter-spacing:.02em}
.sidebar__divider{height:1px;background:rgba(255,255,255,.1);margin-bottom:14px}
.sidebar__nav{display:flex;flex-direction:column;gap:4px;flex:1;overflow-y:auto}
.sidebar__group{
  font-size:12px;color:var(--weak);letter-spacing:.14em;
  margin:18px 0 6px;padding-left:20px;
}
.nav-link{
  display:flex;align-items:center;min-height:44px;padding:0 14px 0 20px;
  border-radius:var(--r-sm);font-size:15px;color:#C7D3D1;
  border-left:3px solid transparent;
  transition:background .18s ease,color .18s ease,border-color .18s ease;
}
.nav-link:hover{background:rgba(255,255,255,.06);color:#fff}
.nav-link.is-active{
  background:rgba(20,211,156,.14);color:var(--brand);
  border-left-color:var(--brand);font-weight:600;
}
.sidebar__foot{padding-top:14px;border-top:1px solid rgba(255,255,255,.1)}
.sidebar__cta{
  display:flex;align-items:center;justify-content:center;width:100%;height:40px;
  border-radius:var(--r-sm);background:var(--brand);color:var(--dark);
  font-size:14px;font-weight:600;transition:background .2s ease;
}
.sidebar__cta:hover{background:var(--brand-600)}
.sidebar__note{font-size:12px;color:var(--weak);line-height:1.7;margin:12px 0 0}

/* ---------- 移动端顶栏与抽屉 ---------- */
.topbar{
  position:sticky;top:0;z-index:50;height:60px;
  background:var(--dark);display:flex;align-items:center;justify-content:space-between;
  padding:0 16px;
}
.topbar__brand{display:flex;align-items:center;gap:8px;color:#fff;font-size:17px;font-weight:700}
.topbar__toggle{
  width:44px;height:44px;display:flex;align-items:center;justify-content:center;
  color:#fff;font-size:22px;border-radius:var(--r-sm);
}
.topbar__toggle:hover{background:rgba(255,255,255,.08)}
.drawer{
  position:fixed;top:0;right:0;bottom:0;width:84%;max-width:340px;
  background:var(--dark);z-index:80;padding:18px 16px 20px;
  display:flex;flex-direction:column;gap:4px;
  transform:translateX(100%);transition:transform .24s ease;
  overflow-y:auto;
}
.drawer.is-open{transform:translateX(0)}
.drawer__head{display:flex;align-items:center;justify-content:space-between;color:#fff;padding:0 4px 14px}
.drawer__close{width:44px;height:44px;font-size:18px;color:#C7D3D1;border-radius:var(--r-sm)}
.drawer__close:hover{background:rgba(255,255,255,.08);color:#fff}
.drawer .nav-link{min-height:48px}
.drawer__foot{margin-top:18px;padding-top:16px;border-top:1px solid rgba(255,255,255,.1)}
.scrim{position:fixed;inset:0;background:rgba(11,20,22,.55);z-index:70;opacity:0;transition:opacity .24s ease}
.scrim.is-open{opacity:1}

/* ---------- Hero ---------- */
.hero{
  position:relative;background:var(--dark);color:#fff;
  background-image:linear-gradient(160deg,rgba(11,20,22,.94),rgba(18,32,34,.82)),url('/assets/images/backpic/back-2.webp');
  background-size:cover;background-position:center;
  padding:44px 0 56px;
}
.hero::after{
  content:"";position:absolute;inset:0;pointer-events:none;opacity:.5;
  background-image:linear-gradient(rgba(255,255,255,.04) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.04) 1px,transparent 1px);
  background-size:24px 24px;
  mask-image:linear-gradient(180deg,rgba(0,0,0,.85),transparent 72%);
  -webkit-mask-image:linear-gradient(180deg,rgba(0,0,0,.85),transparent 72%);
}
.hero .container{position:relative;z-index:2}
.breadcrumb{font-size:14px;color:#9FB0AE;display:flex;gap:8px;flex-wrap:wrap;margin-bottom:22px}
.breadcrumb a:hover{color:var(--brand)}
.breadcrumb span[aria-current]{color:#fff}
.hero__tag{
  display:inline-flex;align-items:center;gap:8px;
  height:30px;padding:0 14px;border-radius:999px;
  background:rgba(20,211,156,.14);color:var(--brand);
  font-size:13px;font-weight:600;margin-bottom:18px;
}
.hero h1{font-size:30px;font-weight:700;line-height:1.28;letter-spacing:.01em}
@media (min-width:768px){.hero h1{font-size:38px}}
@media (min-width:1024px){.hero h1{font-size:46px}}
.hero__sub{margin-top:16px;max-width:660px;color:#C7D3D1;font-size:16px;line-height:1.85}
.hero__actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:28px}
.hero__stats{
  display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:18px;
  margin-top:38px;padding-top:26px;border-top:1px solid rgba(255,255,255,.12);
}
@media (min-width:768px){.hero__stats{grid-template-columns:repeat(4,minmax(0,1fr))}}
.stat__num{font-size:26px;font-weight:700;color:var(--brand)}
@media (min-width:1024px){.stat__num{font-size:28px}}
.stat__label{font-size:14px;color:#9FB0AE;margin-top:2px}

/* ---------- 标题 ---------- */
.eyebrow{width:24px;height:3px;background:var(--brand);border-radius:2px;margin-bottom:16px}
.h2{font-size:26px;font-weight:700}
@media (min-width:1024px){.h2{font-size:34px}}
.h3{font-size:19px;font-weight:600}
@media (min-width:1024px){.h3{font-size:22px}}
.section__head{margin-bottom:34px}
.section__head .lead{margin-top:12px;max-width:720px}

/* ---------- 时间轴 ---------- */
.timeline{position:relative;max-width:920px;margin:0 auto;padding-left:0}
.timeline::before{
  content:"";position:absolute;left:13px;top:14px;bottom:14px;width:3px;border-radius:2px;
  background:linear-gradient(180deg,var(--brand),rgba(20,211,156,.18));
}
.step{position:relative;padding-left:54px;margin-bottom:22px}
.step:last-child{margin-bottom:0}
.step__dot{
  position:absolute;left:0;top:8px;width:28px;height:28px;border-radius:50%;
  border:2px solid var(--brand);background:#fff;color:var(--brand);
  display:flex;align-items:center;justify-content:center;
  font-size:13px;font-weight:700;
}
.step__card{
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-lg);
  padding:20px;box-shadow:var(--shadow-1);
  display:grid;grid-template-columns:1fr;gap:18px;
  transition:box-shadow .25s ease,border-color .25s ease,transform .25s ease;
}
.step__card:hover{border-color:rgba(20,211,156,.45);box-shadow:var(--shadow-2);transform:translateY(-2px)}
@media (min-width:768px){
  .step__card{grid-template-columns:1fr 160px;align-items:start;padding:22px 24px}
}
.step__card h3{font-size:18px;font-weight:600;margin-bottom:8px}
.step__card p{font-size:15px;color:var(--muted);line-height:1.8;margin:0}
.step__thumb{
  width:100%;aspect-ratio:16/10;object-fit:cover;border-radius:var(--r-md);
  border:1px solid var(--line);
}
@media (min-width:768px){.step__thumb{width:160px;height:100px}}
.step__meta{
  display:inline-flex;align-items:center;height:24px;padding:0 10px;margin-bottom:10px;
  border-radius:999px;background:var(--brand-100);color:var(--brand-600);
  font-size:12px;font-weight:600;
}

/* ---------- 清单 ---------- */
.checklist{display:grid;grid-template-columns:1fr;gap:16px}
@media (min-width:768px){.checklist{grid-template-columns:repeat(2,minmax(0,1fr));gap:18px 24px}}
.check-item{
  display:flex;gap:12px;background:var(--card);border:1px solid var(--line);
  border-radius:var(--r-lg);padding:16px 18px;
  transition:border-color .2s ease,box-shadow .2s ease;
}
.check-item:hover{border-color:rgba(20,211,156,.45);box-shadow:var(--shadow-1)}
.check-item__icon{
  flex:0 0 22px;width:22px;height:22px;margin-top:3px;border-radius:50%;
  background:var(--brand-100);color:var(--brand-600);
  display:flex;align-items:center;justify-content:center;font-size:13px;font-weight:700;
}
.check-item h3{font-size:16px;font-weight:600;margin-bottom:4px}
.check-item p{font-size:14px;color:var(--muted);line-height:1.75;margin:0}

/* ---------- 深色提示区 ---------- */
.risks{
  background:linear-gradient(160deg,var(--dark),var(--dark-2));
  color:#fff;border-radius:var(--r-2xl);
  padding:34px 24px;
  position:relative;overflow:hidden;
}
@media (min-width:768px){.risks{padding:44px 40px}}
.risks::after{
  content:"";position:absolute;inset:0;pointer-events:none;opacity:.6;
  background-image:linear-gradient(rgba(255,255,255,.04) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.04) 1px,transparent 1px);
  background-size:24px 24px;
  mask-image:linear-gradient(180deg,rgba(0,0,0,.8),transparent 70%);
  -webkit-mask-image:linear-gradient(180deg,rgba(0,0,0,.8),transparent 70%);
}
.risks > *{position:relative;z-index:2}
.risks__grid{display:grid;grid-template-columns:1fr;gap:18px;margin-top:26px}
@media (min-width:768px){.risks__grid{grid-template-columns:repeat(3,minmax(0,1fr))}}
.risk-card{
  border:1px solid rgba(255,255,255,.14);border-radius:var(--r-lg);
  padding:18px 20px;background:rgba(255,255,255,.03);
  transition:border-color .22s ease,background .22s ease;
}
.risk-card:hover{border-color:rgba(20,211,156,.55);background:rgba(20,211,156,.06)}
.risk-card h3{font-size:17px;font-weight:600;margin-bottom:8px;color:#fff}
.risk-card p{font-size:14px;color:#9FB0AE;line-height:1.8;margin:0}
.risk-card__tag{color:var(--amber);font-size:13px;font-weight:600;letter-spacing:.08em;display:block;margin-bottom:8px}

/* ---------- FAQ ---------- */
.faq{max-width:880px;margin:0 auto}
.faq__item{
  background:var(--card);border:1px solid var(--line);border-radius:12px;
  margin-bottom:12px;overflow:hidden;transition:border-color .2s ease,box-shadow .2s ease;
}
.faq__item:hover{border-color:rgba(20,211,156,.45)}
.faq__item.is-open{border-color:rgba(20,211,156,.6);box-shadow:var(--shadow-1)}
.faq__q{
  width:100%;min-height:56px;display:flex;align-items:center;justify-content:space-between;
  gap:16px;padding:14px 20px;text-align:left;font-size:16px;font-weight:600;
}
.faq__icon{flex:0 0 20px;font-size:20px;color:var(--brand);line-height:1;text-align:center;transition:transform .2s ease}
.faq__a{display:none;padding:0 20px 20px 23px;font-size:15px;line-height:1.85;color:var(--muted);border-left:3px solid var(--brand);margin-left:20px}
.faq__item.is-open .faq__a{display:block}
.faq__a p{margin:0}

/* ---------- 底部 CTA ---------- */
.cta{
  background:linear-gradient(160deg,var(--dark),var(--dark-2));
  border-radius:var(--r-2xl);color:#fff;
  padding:34px 24px;
  display:grid;grid-template-columns:1fr;gap:26px;
}
@media (min-width:1024px){.cta{padding:56px;grid-template-columns:1.15fr 1fr;gap:48px;align-items:start}}
.cta h2{font-size:24px;font-weight:700}
@media (min-width:1024px){.cta h2{font-size:30px}}
.cta__lead{color:#C7D3D1;font-size:15px;margin-top:12px;max-width:520px}
.cta__form{display:grid;gap:12px}
.field label{display:block;font-size:14px;color:#C7D3D1;margin-bottom:6px}
.field input{
  width:100%;height:44px;border-radius:var(--r-md);
  border:1px solid rgba(255,255,255,.2);background:rgba(255,255,255,.05);
  color:#fff;padding:0 14px;font-size:15px;transition:border-color .2s ease,box-shadow .2s ease;
}
.field input::placeholder{color:#6C7B7E}
.field input:focus{outline:none;border-color:var(--brand);box-shadow:0 0 0 3px rgba(20,211,156,.18)}
.field__err{display:none;font-size:13px;color:var(--warn);margin-top:6px}
.field.has-error input{border-color:var(--warn)}
.field.has-error .field__err{display:block}
.cta__note{font-size:13px;color:#6C7B7E;margin-top:4px}

/* ---------- 浮动 CTA ---------- */
.float-cta{
  position:fixed;right:24px;bottom:24px;z-index:40;
  display:inline-flex;align-items:center;gap:8px;
  height:52px;padding:0 22px;border-radius:999px;
  background:var(--brand);color:var(--dark);font-size:15px;font-weight:600;
  box-shadow:var(--shadow-2);
  opacity:0;transform:translateY(10px);pointer-events:none;
  transition:opacity .2s ease,transform .2s ease,background .2s ease;
}
.float-cta.is-visible{opacity:1;transform:translateY(0);pointer-events:auto}
.float-cta:hover{background:var(--brand-600)}
@media (max-width:767px){
  .float-cta{
    left:0;right:0;bottom:0;width:100%;height:auto;min-height:52px;
    border-radius:14px 14px 0 0;justify-content:center;
    padding:14px 16px calc(14px + env(safe-area-inset-bottom));
    opacity:1;transform:none;pointer-events:auto;
  }
}

/* ---------- 页脚 ---------- */
.footer{background:var(--dark);color:#C7D3D1;margin-top:56px;padding:52px 0 26px}
@media (min-width:1024px){.footer{padding:64px 0 28px}}
.footer__grid{display:grid;grid-template-columns:1fr;gap:32px}
@media (min-width:768px){.footer__grid{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media (min-width:1024px){.footer__grid{grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:40px}}
.footer__brand{display:flex;align-items:center;gap:10px;color:#fff;font-size:18px;font-weight:700;margin-bottom:14px}
.footer__desc{font-size:14px;line-height:1.8;color:#9FB0AE;max-width:340px}
.footer h3{font-size:14px;font-weight:600;color:#fff;margin-bottom:14px}
.footer a{display:block;font-size:14px;color:#9FB0AE;margin-bottom:10px;transition:color .2s ease}
.footer a:hover{color:var(--brand)}
.footer__bottom{
  margin-top:36px;padding-top:20px;border-top:1px solid rgba(255,255,255,.1);
  font-size:12px;color:#6C7B7E;text-align:center;line-height:1.8;
}
.tiny{font-size:13px}

/* roulang page: category3 */
:root{
  --brand:#14D39C;--brand-600:#0FB98A;--brand-100:#E6F9F2;
  --accent:#FF9F1C;--accent-600:#E5891A;--warn:#FF6B57;
  --ink:#0B1416;--ink-2:#122022;--bg:#F5F8F7;--muted:#EDF4F1;--card:#FFFFFF;--line:#E3EBE8;
  --t1:#0F1C1F;--t2:#4E6165;--t3:#8A9A9D;
  --r-xs:8px;--r-sm:10px;--r-md:14px;--r-lg:16px;
  --shadow:0 1px 2px rgba(11,20,22,.05),0 10px 24px -14px rgba(11,20,22,.16);
  --shadow-h:0 2px 4px rgba(11,20,22,.06),0 18px 36px -16px rgba(11,20,22,.22);
  --font:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,sans-serif;
  --sb:236px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{margin:0;background:var(--bg);color:var(--t1);font-family:var(--font);font-size:17px;line-height:1.85}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer}
input{font:inherit}
h1,h2,h3,h4,p,ul,ol,figure{margin:0}
ul{list-style:none;padding:0}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px}
.container{max-width:1200px;margin:0 auto;padding:0 32px}

/* 左侧竖向导航 */
.sidebar{position:fixed;top:0;left:0;bottom:0;width:var(--sb);background:var(--ink);display:flex;flex-direction:column;padding:0 16px 20px;z-index:60}
.sidebar__brand{height:88px;display:flex;align-items:center;gap:10px;padding:0 4px}
.brand__name{font-size:18px;font-weight:700;color:#fff;letter-spacing:.2px}
.sidebar__divider{height:1px;background:rgba(255,255,255,.08)}
.sidebar__nav{flex:1;overflow-y:auto;padding-top:10px}
.sidebar__label{font-size:12px;color:#6C7B7E;letter-spacing:.14em;padding:14px 20px 6px}
.nav-link{position:relative;display:flex;align-items:center;height:44px;padding:0 20px;border-radius:var(--r-xs);font-size:15px;color:#C7D3D1;transition:background .18s ease,color .18s ease}
.nav-link:hover{background:rgba(255,255,255,.06);color:#fff}
.nav-link.is-active{background:rgba(20,211,156,.14);color:var(--brand)}
.nav-link.is-active::before{content:"";position:absolute;left:0;top:12px;bottom:12px;width:3px;border-radius:2px;background:var(--brand)}
.sidebar__foot{padding-top:14px;border-top:1px solid rgba(255,255,255,.08)}
.sidebar__cta{display:flex;align-items:center;justify-content:center;height:40px;border-radius:var(--r-sm);background:var(--brand);color:var(--ink);font-size:15px;font-weight:600;transition:background .18s ease,transform .18s ease}
.sidebar__cta:hover{background:var(--brand-600);transform:translateY(-1px)}
.sidebar__note{font-size:12px;line-height:1.6;color:#6C7B7E;padding:10px 4px 0}

/* 移动端顶部条与抽屉 */
.topbar{display:none}
.drawer,.drawer-mask{display:none}
.page{padding-left:var(--sb)}

/* 面包屑 */
.crumb{font-size:14px;color:var(--t3);padding:20px 0 0;display:flex;gap:8px;align-items:center;flex-wrap:wrap}
.crumb a:hover{color:var(--brand-600)}
.crumb [aria-current]{color:var(--t2)}

/* Hero */
.hero{position:relative;overflow:hidden;background:linear-gradient(160deg,#0B1416,#122022);color:#fff;padding:64px 0 56px}
.hero__bg{position:absolute;inset:0;background-image:url('/assets/images/backpic/back-1.png');background-size:cover;background-position:center;opacity:.2}
.hero__mesh{position:absolute;inset:0;background-image:linear-gradient(rgba(255,255,255,.05) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.05) 1px,transparent 1px);background-size:24px 24px;-webkit-mask-image:linear-gradient(180deg,#000,transparent 62%);mask-image:linear-gradient(180deg,#000,transparent 62%)}
.hero__grid{position:relative;display:grid;grid-template-columns:1.15fr .85fr;gap:44px;align-items:center}
.hero__eyebrow{display:inline-flex;align-items:center;gap:10px;font-size:13px;letter-spacing:.14em;color:var(--brand);margin-bottom:16px}
.hero__eyebrow::before{content:"";width:24px;height:3px;border-radius:2px;background:var(--brand)}
.hero h1{font-size:46px;line-height:1.25;font-weight:700;margin-bottom:16px}
.hero__lead{font-size:17px;color:#C7D3D1;max-width:33em}
.hero__actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:28px}
.hero__media img{width:100%;aspect-ratio:16/9;object-fit:cover;border-radius:var(--r-lg);border:1px solid rgba(255,255,255,.16)}
.hero__strip{margin-top:16px;height:56px;display:flex;align-items:center;padding:0 18px;font-size:15px;color:#C7D3D1;border:1px solid rgba(255,255,255,.24);border-radius:12px;background:rgba(11,20,22,.5)}
.stats{display:flex;flex-wrap:wrap;gap:36px;margin-top:36px}
.stat__num{font-size:28px;font-weight:700;line-height:1.2;color:var(--brand);font-variant-numeric:tabular-nums}
.stat__label{font-size:14px;color:rgba(255,255,255,.62)}

/* 按钮 */
.btn{display:inline-flex;align-items:center;justify-content:center;height:48px;padding:0 24px;border-radius:var(--r-sm);font-size:16px;font-weight:600;border:1px solid transparent;transition:background .18s ease,color .18s ease,border-color .18s ease,transform .18s ease,box-shadow .18s ease}
.btn--primary{background:var(--brand);color:var(--ink);box-shadow:0 0 0 6px rgba(20,211,156,.12)}
.btn--primary:hover{background:var(--brand-600)}
.btn--primary:active{transform:translateY(1px);box-shadow:none}
.btn--outline{background:transparent;color:#fff;border-color:rgba(255,255,255,.28)}
.btn--outline:hover{border-color:var(--brand);color:var(--brand)}
.btn--solid{background:var(--brand);color:var(--ink)}
.btn--solid:hover{background:var(--brand-600)}
.btn--block{width:100%}
.btn:disabled{opacity:.5;cursor:not-allowed}

/* 板块 */
.section{padding:96px 0}
.section--muted{background:var(--muted)}
.section--tight{padding:72px 0}
.section__head{max-width:800px}
.eyebrow{display:inline-flex;align-items:center;gap:10px;font-size:13px;letter-spacing:.14em;color:var(--brand-600);margin-bottom:14px}
.eyebrow::before{content:"";width:24px;height:3px;border-radius:2px;background:var(--brand)}
.section h2{font-size:34px;line-height:1.3;font-weight:700;margin-bottom:14px}
.section__lead{font-size:15px;line-height:1.85;color:var(--t2)}

/* 对比表格 */
.table-wrap{margin-top:32px;overflow-x:auto;background:var(--card);border:1px solid var(--line);border-radius:var(--r-md);box-shadow:var(--shadow)}
table.compare{width:100%;min-width:760px;border-collapse:collapse;font-size:15px}
.compare th,.compare td{padding:16px 18px;text-align:left;vertical-align:top;border-bottom:1px solid var(--line)}
.compare thead th{background:var(--brand-100);font-size:14px;font-weight:600;color:var(--t1);white-space:nowrap}
.compare td:first-child{font-weight:600;color:var(--t1);white-space:nowrap}
.compare td{color:var(--t2)}
.compare tbody tr:nth-child(even){background:var(--bg)}
.compare tbody tr:hover{background:rgba(20,211,156,.06)}
.compare tbody tr.is-selected{background:rgba(20,211,156,.12)}
.compare tbody tr:last-child td{border-bottom:0}
.table-note{margin-top:12px;font-size:13px;color:var(--t3)}

/* 卡片 */
.card-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:24px;margin-top:32px}
.news-card{display:flex;flex-direction:column;gap:10px;background:var(--card);border:1px solid var(--line);border-radius:var(--r-md);padding:24px;box-shadow:var(--shadow);transition:transform .25s ease,box-shadow .25s ease,border-color .25s ease}
.news-card:hover{transform:translateY(-2px);border-color:rgba(20,211,156,.45);box-shadow:var(--shadow-h)}
.news-card h3{font-size:18px;font-weight:600;line-height:1.5}
.news-card p{font-size:15px;line-height:1.75;color:var(--t2)}
.news-card__foot{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-top:auto;padding-top:12px;border-top:1px solid var(--line);font-size:13px;color:var(--t3)}
.news-card__link{font-size:14px;font-weight:600;color:var(--brand-600)}
.news-card__link:hover{color:var(--brand)}
.tag{display:inline-flex;align-items:center;height:26px;padding:0 10px;border-radius:999px;background:var(--brand-100);color:var(--brand-600);font-size:13px;line-height:1}
.tag--accent{background:rgba(255,159,28,.14);color:var(--accent-600)}

/* FAQ */
.faq{display:flex;flex-direction:column;gap:12px;max-width:880px;margin-top:32px}
.faq-item{background:var(--card);border:1px solid var(--line);border-radius:12px}
.faq-item__q{width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;min-height:56px;padding:14px 20px;text-align:left;font-size:16px;font-weight:600}
.faq-item__q:hover{color:var(--brand-600)}
.faq-item__icon{position:relative;width:20px;height:20px;flex:0 0 auto}
.faq-item__icon::before,.faq-item__icon::after{content:"";position:absolute;background:var(--brand);border-radius:2px}
.faq-item__icon::before{left:0;right:0;top:9px;height:2px}
.faq-item__icon::after{top:0;bottom:0;left:9px;width:2px;transition:transform .2s ease,opacity .2s ease}
.faq-item.is-open .faq-item__icon::after{transform:rotate(90deg);opacity:0}
.faq-item__a{display:none;font-size:15px;line-height:1.85;color:var(--t2)}
.faq-item.is-open .faq-item__a{display:block;margin:0 20px 20px;padding-left:16px;border-left:3px solid var(--brand)}

/* 底部 CTA */
.cta{background:var(--ink);color:#fff;border-radius:20px;padding:56px;display:grid;grid-template-columns:1.1fr .9fr;gap:44px;align-items:center}
.cta h2{font-size:34px;line-height:1.3;font-weight:700;margin-bottom:12px}
.cta p{font-size:15px;color:#9FB0AE}
.form{display:flex;flex-wrap:wrap;gap:12px;margin-top:20px}
.form input{flex:1 1 220px;height:44px;padding:0 14px;border-radius:var(--r-sm);border:1px solid rgba(255,255,255,.24);background:rgba(255,255,255,.06);color:#fff;font-size:15px}
.form input::placeholder{color:#7B8B8D}
.form input:focus{outline:none;border-color:var(--brand);box-shadow:0 0 0 3px rgba(20,211,156,.18)}
.form__msg{min-height:20px;margin-top:8px;font-size:13px;color:var(--warn)}

/* 页脚 */
.footer{background:var(--ink);color:#9FB0AE;padding:64px 0 24px}
.footer__grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:32px}
.footer__brand{display:flex;align-items:center;gap:10px;margin-bottom:12px;color:#fff;font-size:18px;font-weight:700}
.footer h3{font-size:14px;font-weight:600;color:#fff;margin-bottom:14px}
.footer a{display:block;padding:5px 0;font-size:14px;color:#9FB0AE;transition:color .18s ease}
.footer a:hover{color:var(--brand)}
.footer__desc{font-size:14px;line-height:1.8;color:#9FB0AE}
.footer__bottom{margin-top:40px;padding-top:20px;border-top:1px solid rgba(255,255,255,.08);font-size:12px;text-align:center;color:#6C7B7E}

/* 浮动 CTA */
.float-cta{position:fixed;right:24px;bottom:24px;z-index:70;display:inline-flex;align-items:center;gap:8px;height:52px;padding:0 22px;border-radius:999px;background:var(--brand);color:var(--ink);font-size:15px;font-weight:600;box-shadow:0 12px 30px -12px rgba(11,20,22,.55);opacity:0;transform:translateY(12px);pointer-events:none;transition:opacity .2s ease,transform .2s ease,background .2s ease}
.float-cta.is-show{opacity:1;transform:none;pointer-events:auto}
.float-cta:hover{background:var(--brand-600)}

@media (max-width:1279.98px){
  .container{padding:0 24px}
  .hero h1{font-size:38px}
  .section{padding:80px 0}
}
@media (max-width:1023.98px){
  .sidebar{display:none}
  .page{padding-left:0}
  .topbar{position:sticky;top:0;z-index:65;display:flex;align-items:center;justify-content:space-between;height:60px;padding:0 16px;background:var(--ink)}
  .topbar__brand{display:flex;align-items:center;gap:8px;color:#fff;font-size:16px;font-weight:700}
  .topbar__toggle{display:flex;align-items:center;justify-content:center;width:44px;height:44px;border-radius:10px}
  .topbar__toggle span{position:relative;display:block;width:20px;height:2px;background:#fff;border-radius:2px}
  .topbar__toggle span::before,.topbar__toggle span::after{content:"";position:absolute;left:0;width:20px;height:2px;background:#fff;border-radius:2px}
  .topbar__toggle span::before{top:-6px}
  .topbar__toggle span::after{top:6px}
  .drawer{display:flex;flex-direction:column;position:fixed;top:0;right:0;bottom:0;width:84%;max-width:340px;padding:0 16px 20px;background:var(--ink);z-index:80;transform:translateX(104%);transition:transform .24s ease}
  .drawer.is-open{transform:none}
  .drawer__head{display:flex;align-items:center;justify-content:space-between;height:60px;color:#fff}
  .drawer__close{display:flex;align-items:center;justify-content:center;width:44px;height:44px;font-size:18px;color:#C7D3D1;border-radius:10px}
  .drawer .nav-link{height:48px}
  .drawer__foot{margin-top:auto;padding-top:16px;border-top:1px solid rgba(255,255,255,.08)}
  .drawer-mask{display:block;position:fixed;inset:0;z-index:75;background:rgba(11,20,22,.55);opacity:0;pointer-events:none;transition:opacity .24s ease}
  .drawer-mask.is-open{opacity:1;pointer-events:auto}
  .hero{padding:48px 0 44px}
  .hero__grid{grid-template-columns:1fr;gap:32px}
  .hero h1{font-size:34px}
  .section{padding:72px 0}
  .cta{grid-template-columns:1fr;padding:36px}
  .cta h2{font-size:28px}
  .footer__grid{grid-template-columns:1fr 1fr;gap:28px}
  .float-cta{left:0;right:0;bottom:0;width:100%;height:56px;justify-content:center;border-radius:16px 16px 0 0;padding-bottom:env(safe-area-inset-bottom)}
}
@media (max-width:767.98px){
  body{font-size:16px}
  .hero h1{font-size:30px}
  .hero__lead{font-size:16px}
  .section h2{font-size:26px}
  .cta h2{font-size:24px}
  .card-grid{grid-template-columns:1fr;gap:16px}
  .stats{gap:20px 28px}
  .footer{padding:48px 0 20px}
  .footer__grid{grid-template-columns:1fr}
  .cta{padding:28px 22px}
}
@media (max-width:520px){
  .container{padding:0 18px}
  .hero h1{font-size:27px}
  .btn{height:46px;font-size:15px}
  .news-card{padding:20px}
}

/* roulang page: category1 */
:root{
  --brand-500:#14D39C;
  --brand-600:#0FB98A;
  --brand-100:#E6F9F2;
  --accent-500:#FF9F1C;
  --accent-600:#E5891A;
  --dark:#0B1416;
  --dark-2:#122022;
  --bg:#F5F8F7;
  --surface:#FFFFFF;
  --line:#E3EBE8;
  --text:#0F1C1F;
  --text-2:#4E6165;
  --text-3:#8A9A9D;
  --radius-s:8px;
  --radius-m:10px;
  --radius-l:14px;
  --radius-xl:16px;
  --radius-2xl:20px;
  --shadow-s:0 1px 2px rgba(11,20,22,.05),0 10px 24px -14px rgba(11,20,22,.16);
  --shadow-h:0 2px 4px rgba(11,20,22,.06),0 18px 36px -16px rgba(11,20,22,.22);
  --sidebar-w:236px;
  --font:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
.page-body{
  margin:0;
  font-family:var(--font);
  font-size:17px;
  line-height:1.85;
  color:var(--text);
  background:var(--bg);
  overflow-x:hidden;
  -webkit-font-smoothing:antialiased;
}
.page-body.is-locked{overflow:hidden}
img{display:block;max-width:100%;height:auto}
.wrap{max-width:1200px;margin:0 auto;padding:0 32px;width:100%}

/* ---------- 左侧竖向导航 ---------- */
.sidebar{
  position:fixed;
  top:0;left:0;bottom:0;
  width:var(--sidebar-w);
  background:var(--dark);
  display:flex;
  flex-direction:column;
  padding:0 16px 22px;
  z-index:50;
}
.sidebar__brand{
  height:88px;
  display:flex;
  align-items:center;
  gap:10px;
  text-decoration:none;
  border-bottom:1px solid rgba(255,255,255,.08);
  margin-bottom:14px;
  flex:none;
}
.brand__name{font-size:18px;font-weight:700;color:#fff;letter-spacing:.02em}
.sidebar__nav{display:flex;flex-direction:column;gap:2px;flex:1;overflow-y:auto;padding-right:2px}
.sidebar__nav::-webkit-scrollbar{width:6px}
.sidebar__nav::-webkit-scrollbar-thumb{background:rgba(255,255,255,.14);border-radius:6px}
.nav-link{
  display:flex;
  align-items:center;
  height:44px;
  padding:0 20px;
  border-radius:var(--radius-s);
  border-left:3px solid transparent;
  font-size:15px;
  color:#C7D3D1;
  text-decoration:none;
  transition:background .18s ease,color .18s ease,border-color .18s ease;
}
.nav-link:hover{background:rgba(255,255,255,.06);color:#fff}
.nav-link:focus-visible{outline:2px solid var(--brand-500);outline-offset:2px}
.nav-link.is-active{
  background:rgba(20,211,156,.14);
  color:var(--brand-500);
  border-left-color:var(--brand-500);
}
.sidebar__foot{flex:none;padding-top:16px;border-top:1px solid rgba(255,255,255,.08);margin-top:12px}
.sidebar__cta{
  display:flex;align-items:center;justify-content:center;
  height:40px;border-radius:var(--radius-m);
  background:var(--brand-500);color:var(--dark);
  font-size:14px;font-weight:600;text-decoration:none;
  transition:background .18s ease;
}
.sidebar__cta:hover{background:var(--brand-600);color:var(--dark)}
.sidebar__note{font-size:12px;line-height:1.6;color:#8A9A9D;margin:12px 0 0}

/* ---------- 移动端顶部条与抽屉 ---------- */
.topbar{
  display:none;
  position:fixed;top:0;left:0;right:0;height:60px;
  background:var(--dark);
  align-items:center;justify-content:space-between;
  padding:0 16px;z-index:60;
}
.topbar__brand{display:flex;align-items:center;gap:9px;text-decoration:none}
.topbar__brand span{color:#fff;font-size:17px;font-weight:700}
.topbar__burger{
  width:44px;height:44px;border-radius:var(--radius-s);
  background:rgba(255,255,255,.07);border:1px solid rgba(255,255,255,.14);
  color:#fff;font-size:20px;line-height:1;cursor:pointer;
  display:flex;align-items:center;justify-content:center;
  font-family:var(--font);
  transition:background .18s ease;
}
.topbar__burger:hover{background:rgba(20,211,156,.18)}
.topbar__burger:focus-visible{outline:2px solid var(--brand-500);outline-offset:2px}
.drawer{
  position:fixed;top:0;right:0;bottom:0;
  width:84%;max-width:340px;
  background:var(--dark);
  z-index:80;
  transform:translateX(100%);
  transition:transform .24s ease;
  display:flex;flex-direction:column;gap:2px;
  padding:12px 16px 24px;
  overflow-y:auto;
}
.drawer.is-open{transform:translateX(0)}
.drawer__head{display:flex;align-items:center;justify-content:space-between;height:56px;flex:none}
.drawer__close{
  width:44px;height:44px;border-radius:var(--radius-s);
  background:transparent;border:1px solid rgba(255,255,255,.16);
  color:#fff;font-size:16px;cursor:pointer;font-family:var(--font);
  transition:background .18s ease;
}
.drawer__close:hover{background:rgba(255,255,255,.08)}
.drawer .nav-link{height:48px}
.drawer__foot{margin-top:auto;padding-top:20px;border-top:1px solid rgba(255,255,255,.08)}
.drawer__mask{
  position:fixed;inset:0;background:rgba(11,20,22,.55);
  opacity:0;visibility:hidden;transition:opacity .24s ease,visibility .24s ease;
  z-index:70;
}
.drawer__mask.is-open{opacity:1;visibility:visible}

/* ---------- 主体 ---------- */
.page{padding-left:var(--sidebar-w);min-height:100vh;display:flex;flex-direction:column}
.page__main{flex:1}

/* ---------- 通用排版 ---------- */
.eyebrow{
  display:inline-flex;align-items:center;gap:9px;
  font-size:13px;font-weight:600;letter-spacing:.06em;
  color:var(--brand-600);
}
.eyebrow::before{content:"";width:24px;height:3px;border-radius:2px;background:var(--brand-500)}
.h2{font-size:34px;line-height:1.3;font-weight:700;margin:14px 0 16px;color:var(--text)}
.h3{font-size:22px;line-height:1.4;font-weight:600;margin:0 0 10px;color:var(--text)}
.h4{font-size:18px;line-height:1.5;font-weight:600;margin:0 0 8px;color:var(--text)}
.para{
  margin:0 0 1.1em;
  font-size:17px;line-height:1.85;color:var(--text-2);
  max-width:800px;
}
.link-arrow{
  display:inline-flex;align-items:center;gap:6px;
  margin-top:4px;font-size:16px;font-weight:600;
  color:var(--brand-600);text-decoration:none;
  border-bottom:1px solid rgba(20,211,156,.4);
  padding-bottom:2px;transition:color .18s ease,border-color .18s ease;
}
.link-arrow:hover{color:var(--brand-500);border-color:var(--brand-500)}
.link-arrow:focus-visible{outline:2px solid var(--brand-500);outline-offset:2px;border-radius:4px}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;
  height:48px;padding:0 22px;border-radius:var(--radius-m);
  font-family:var(--font);font-size:16px;font-weight:600;
  text-decoration:none;cursor:pointer;border:1px solid transparent;
  transition:background .2s ease,color .2s ease,border-color .2s ease,box-shadow .2s ease,transform .2s ease;
}
.btn:focus-visible{outline:2px solid var(--brand-500);outline-offset:2px}
.btn--primary{background:var(--brand-500);color:var(--dark);box-shadow:0 0 0 8px rgba(20,211,156,.12)}
.btn--primary:hover{background:var(--brand-600)}
.btn--primary:active{transform:translateY(1px);box-shadow:0 0 0 4px rgba(20,211,156,.14)}
.btn--ghost{background:transparent;border-color:rgba(11,20,22,.18);color:var(--text)}
.btn--ghost:hover{border-color:rgba(20,211,156,.6);color:var(--brand-600)}

/* ---------- 面包屑 ---------- */
.crumbs{padding:28px 0 0}
.crumbs__list{display:flex;flex-wrap:wrap;align-items:center;gap:8px;list-style:none;margin:0;padding:0;font-size:14px;color:var(--text-3)}
.crumbs__list a{color:var(--text-3);text-decoration:none;transition:color .18s ease}
.crumbs__list a:hover{color:var(--brand-600)}
.crumbs__sep{color:#C4D1CE}

/* ---------- Hero ---------- */
.hero{padding:44px 0 96px}
.hero__grid{display:grid;grid-template-columns:6fr 5fr;gap:52px;align-items:center}
.hero__title{font-size:46px;line-height:1.25;font-weight:700;margin:16px 0 14px;color:var(--text)}
.hero__sub{font-size:19px;line-height:1.7;color:var(--text);margin:0 0 18px;font-weight:500;max-width:620px}
.hero__actions{display:flex;flex-wrap:wrap;gap:14px;margin:26px 0 0}
.hero__media{
  position:relative;border-radius:var(--radius-xl);overflow:hidden;
  aspect-ratio:4/3;background:var(--dark-2);
  box-shadow:var(--shadow-s);
}
.hero__media img{width:100%;height:100%;object-fit:cover}
.hero__media::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(160deg,rgba(11,20,22,.72) 0%,rgba(11,20,22,.42) 55%,rgba(11,20,22,.78) 100%);
}
.hero__bar{
  position:absolute;left:16px;right:16px;bottom:16px;z-index:2;
  min-height:56px;display:flex;align-items:center;gap:10px;
  padding:10px 16px;border-radius:var(--radius-m);
  border:1px solid rgba(255,255,255,.28);
  color:#fff;font-size:15px;line-height:1.5;
}
.hero__bar .dot{width:8px;height:8px;border-radius:50%;background:var(--brand-500);flex:none}

/* ---------- 数据指标 ---------- */
.metrics{
  display:grid;grid-template-columns:repeat(4,1fr);gap:20px;
  margin-top:38px;padding-top:26px;border-top:1px solid var(--line);
}
.metric__num{
  font-size:28px;font-weight:700;color:var(--brand-600);
  font-variant-numeric:tabular-nums;line-height:1.3;
}
.metric__label{font-size:14px;line-height:1.6;color:var(--text-3)}

/* ---------- 板块 ---------- */
.section{padding:96px 0}
.section--tight{padding:72px 0}
.section--plain{background:var(--bg)}
.section--surface{background:var(--surface);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.section__head{max-width:760px;margin-bottom:44px}
.section__lead{font-size:17px;line-height:1.85;color:var(--text-2);margin:0}

/* ---------- 两栏图文 ---------- */
.split{display:grid;grid-template-columns:1.05fr .95fr;gap:52px;align-items:center}
.split__media{border-radius:var(--radius-xl);overflow:hidden;box-shadow:var(--shadow-s);background:var(--dark-2)}
.split__media img{width:100%;aspect-ratio:4/3;object-fit:cover;transition:transform .35s ease}
.split__media:hover img{transform:scale(1.03)}

/* ---------- 图文交替 ---------- */
.media-row{display:grid;grid-template-columns:1fr 1fr;gap:48px;align-items:center;padding:36px 0}
.media-row + .media-row{border-top:1px solid var(--line)}
.media-row__media{border-radius:var(--radius-l);overflow:hidden;box-shadow:var(--shadow-s);background:var(--dark-2)}
.media-row__media img{width:100%;aspect-ratio:16/9;object-fit:cover;transition:transform .3s ease}
.media-row__media:hover img{transform:scale(1.03)}
.media-row--reverse .media-row__media{order:2}
.media-row__index{
  display:inline-block;font-size:13px;font-weight:700;letter-spacing:.12em;
  color:var(--brand-600);font-variant-numeric:tabular-nums;margin-bottom:8px;
}

/* ---------- 勾选清单 ---------- */
.checklist{
  list-style:none;margin:8px 0 0;padding:0;
  display:grid;grid-template-columns:1fr 1fr;gap:16px 32px;
}
.checklist li{
  position:relative;padding-left:32px;
  font-size:16px;line-height:1.7;color:var(--text-2);
}
.checklist li::before{
  content:"";position:absolute;left:0;top:3px;
  width:20px;height:20px;border-radius:6px;
  background:var(--brand-100);border:1px solid rgba(20,211,156,.45);
}
.checklist li::after{
  content:"";position:absolute;left:6px;top:8px;
  width:8px;height:4px;border-left:2px solid var(--brand-600);
  border-bottom:2px solid var(--brand-600);transform:rotate(-45deg);
}

/* ---------- 提示条 ---------- */
.notice{
  position:relative;overflow:hidden;
  background:linear-gradient(160deg,var(--dark) 0%,var(--dark-2) 100%);
  border-radius:var(--radius-2xl);
  padding:32px 36px;
  display:grid;grid-template-columns:auto 1fr;gap:20px;align-items:center;
  color:#fff;
}
.notice__badge{
  display:inline-flex;align-items:center;justify-content:center;
  height:28px;padding:0 14px;border-radius:999px;
  background:rgba(255,159,28,.16);color:var(--accent-500);
  font-size:13px;font-weight:600;letter-spacing:.04em;flex:none;
}
.notice__text{margin:0;font-size:15px;line-height:1.85;color:#D6E1DF}
.grid-tex::before{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:linear-gradient(rgba(255,255,255,.04) 1px,transparent 1px),
                   linear-gradient(90deg,rgba(255,255,255,.04) 1px,transparent 1px);
  background-size:24px 24px;
  -webkit-mask-image:linear-gradient(160deg,rgba(0,0,0,.9),transparent 70%);
  mask-image:linear-gradient(160deg,rgba(0,0,0,.9),transparent 70%);
}

/* ---------- 协助方式 ---------- */
.assist{list-style:none;margin:36px 0 0;padding:0}
.assist__item{
  display:flex;gap:22px;align-items:flex-start;
  padding:24px 0;border-top:1px solid var(--line);
}
.assist__item:last-child{border-bottom:1px solid var(--line)}
.assist__no{
  flex:none;padding-top:5px;
  font-size:13px;font-weight:700;letter-spacing:.12em;
  color:var(--brand-600);font-variant-numeric:tabular-nums;
}
.assist__item .para{margin-bottom:0;max-width:760px}

/* ---------- FAQ ---------- */
.faq{max-width:880px}
.faq__item{
  background:var(--surface);border:1px solid var(--line);
  border-radius:12px;margin-bottom:12px;overflow:hidden;
  transition:border-color .2s ease,box-shadow .2s ease;
}
.faq__item:hover{border-color:rgba(20,211,156,.45)}
.faq__item.is-open{border-color:rgba(20,211,156,.55);box-shadow:var(--shadow-s)}
.faq__q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:18px;
  min-height:56px;padding:14px 22px;margin:0;
  background:none;border:0;cursor:pointer;text-align:left;
  font-family:var(--font);font-size:16px;font-weight:600;color:var(--text);
  transition:color .18s ease;
}
.faq__q:hover{color:var(--brand-600)}
.faq__q:focus-visible{outline:2px solid var(--brand-500);outline-offset:-2px}
.faq__icon{
  flex:none;font-size:20px;line-height:1;color:var(--brand-600);
  transition:transform .2s ease;
}
.faq__item.is-open .faq__icon{transform:rotate(45deg)}
.faq__a{display:none;padding:0 22px 20px}
.faq__item.is-open .faq__a{display:block}
.faq__a p{
  margin:0;padding-left:16px;border-left:3px solid var(--brand-500);
  font-size:15px;line-height:1.85;color:var(--text-2);
}

/* ---------- 底部 CTA ---------- */
.cta{
  position:relative;overflow:hidden;
  background:linear-gradient(160deg,var(--dark) 0%,var(--dark-2) 100%);
  border-radius:var(--radius-2xl);
  padding:56px;
  display:grid;grid-template-columns:1fr auto;gap:32px;align-items:center;
}
.cta__title{font-size:32px;line-height:1.3;font-weight:700;color:#fff;margin:0 0 12px}
.cta__text{margin:0;font-size:15px;line-height:1.8;color:#B7C6C4;max-width:560px}

/* ---------- 浮动 CTA ---------- */
.float-cta{
  position:fixed;right:24px;bottom:24px;z-index:65;
  display:inline-flex;align-items:center;gap:8px;
  height:48px;padding:0 22px;border-radius:999px;
  background:var(--brand-500);color:var(--dark);
  font-size:15px;font-weight:600;text-decoration:none;
  box-shadow:var(--shadow-h);
  opacity:0;transform:translateY(8px);pointer-events:none;
  transition:opacity .2s ease,transform .2s ease,background .2s ease;
}
.float-cta.is-visible{opacity:1;transform:translateY(0);pointer-events:auto}
.float-cta:hover{background:var(--brand-600)}
.float-cta:focus-visible{outline:2px solid var(--dark);outline-offset:2px}

/* ---------- 页脚 ---------- */
.footer{background:var(--dark);color:#9FB0AE;padding:64px 0 28px;margin-top:0}
.footer__grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.2fr;gap:40px}
.footer h3{color:#fff;font-size:14px;font-weight:600;margin:0 0 14px;letter-spacing:.02em}
.footer a{display:block;color:#9FB0AE;font-size:14px;text-decoration:none;padding:5px 0;transition:color .18s ease}
.footer a:hover{color:var(--brand-500)}
.footer a:focus-visible{outline:2px solid var(--brand-500);outline-offset:2px;border-radius:4px}
.footer__brand{display:flex;align-items:center;gap:10px;color:#fff;font-size:18px;font-weight:700;margin-bottom:14px}
.footer__desc{font-size:14px;line-height:1.8;color:#8A9A9D;margin:0;max-width:340px}
.footer__bottom{
  border-top:1px solid rgba(255,255,255,.08);
  margin-top:40px;padding-top:20px;
  text-align:center;font-size:12px;line-height:1.8;color:#6C7B7E;
}
.tiny{font-size:12px}

/* ---------- 响应式 ---------- */
@media (max-width:1279px){
  .wrap{padding:0 24px}
  .hero__title{font-size:40px}
}
@media (max-width:1023px){
  .sidebar{display:none}
  .page{padding-left:0;padding-top:60px}
  .topbar{display:flex}
  .hero{padding:36px 0 72px}
  .hero__grid{grid-template-columns:1fr;gap:36px}
  .hero__media{aspect-ratio:16/10}
  .split{grid-template-columns:1fr;gap:36px}
  .media-row{grid-template-columns:1fr;gap:24px}
  .media-row--reverse .media-row__media{order:0}
  .section{padding:72px 0}
  .section--tight{padding:60px 0}
  .cta{grid-template-columns:1fr;padding:40px}
  .footer__grid{grid-template-columns:1fr 1fr;gap:32px}
}
@media (min-width:1024px){
  .drawer,.drawer__mask{display:none}
}
@media (max-width:767px){
  .wrap{padding:0 18px}
  .page-body{font-size:16px}
  .hero__title{font-size:30px}
  .hero__sub{font-size:17px}
  .h2{font-size:26px}
  .h3{font-size:19px}
  .para{font-size:16px}
  .hero__actions .btn{flex:1 1 100%}
  .metrics{grid-template-columns:1fr 1fr;gap:18px}
  .metric__num{font-size:24px}
  .checklist{grid-template-columns:1fr}
  .notice{grid-template-columns:1fr;padding:26px 22px;gap:14px}
  .assist__item{flex-direction:column;gap:8px}
  .assist__no{padding-top:0}
  .cta{padding:32px 22px;border-radius:var(--radius-xl)}
  .cta__title{font-size:24px}
  .cta .btn{width:100%}
  .footer{padding:48px 0 84px}
  .footer__grid{grid-template-columns:1fr;gap:26px}
  .float-cta{
    left:0;right:0;bottom:0;height:56px;
    border-radius:14px 14px 0 0;justify-content:center;
    padding:0 16px calc(0px + env(safe-area-inset-bottom));
  }
  .section{padding:56px 0}
  .section--tight{padding:48px 0}
}
@media (max-width:519px){
  .hero__title{font-size:26px}
  .metrics{grid-template-columns:1fr 1fr}
  .crumbs{padding-top:20px}
}