/* roulang page: index */
:root{
  --ink:#0E3A33;
  --ink-deep:#08231F;
  --ink-soft:#17564C;
  --lime:#C6F24E;
  --orange:#E8552F;
  --sand:#F5F3EE;
  --card:#FFFFFF;
  --text:#1B2422;
  --text-2:#5A6663;
  --text-3:#8A948F;
  --line:#E2E0D9;
  --line-dark:rgba(255,255,255,.10);
  --dtext:#EAF3EF;
  --ok:#2F9E6B;
  --warn:#D97706;
  --err:#C63C2E;
  --r-sm:10px;
  --r-md:16px;
  --r-lg:20px;
  --r-pill:999px;
  --sh-sm:0 1px 2px rgba(14,58,51,.06);
  --sh-md:0 10px 28px -14px rgba(14,58,51,.20);
  --sh-lg:0 28px 64px -28px rgba(14,58,51,.30);
  --container:1220px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  font-family:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:17px;
  line-height:1.85;
  color:var(--text);
  background:var(--sand);
  letter-spacing:.01em;
}
img{max-width:100%;display:block;height:auto}
a{color:inherit;text-decoration:none}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4,p,figure{margin:0}
button,input,select,textarea{font:inherit;color:inherit}
button{cursor:pointer;border:none;background:none}
:focus-visible{outline:2px solid var(--lime);outline-offset:2px;border-radius:6px}
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 32px}
.section{padding:96px 0}
.section-tight{padding:64px 0}
.section-dark{background:var(--ink-deep);color:var(--dtext);padding:76px 0}
.section-sand{background:var(--sand)}
.sec-head{max-width:780px;margin-bottom:48px}
.sec-head-row{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:44px;flex-wrap:wrap}
.eyebrow{display:inline-flex;align-items:center;gap:8px;font-size:13px;font-weight:600;color:var(--ink);background:rgba(14,58,51,.08);border-radius:var(--r-pill);padding:6px 14px;letter-spacing:.02em}
.section-dark .eyebrow{color:var(--lime);background:rgba(198,242,78,.12)}
.sec-title{font-size:30px;line-height:1.3;font-weight:700;margin-top:18px}
.section-dark .sec-title{color:#FFFFFF}
.sec-sub{margin-top:16px;font-size:16px;line-height:1.8;color:var(--text-2);max-width:720px}
.section-dark .sec-sub{color:rgba(234,243,239,.72)}
.link-more{font-size:15px;font-weight:500;color:var(--ink);border-bottom:2px solid var(--lime);padding-bottom:2px;transition:color .18s ease-out}
.link-more:hover{color:var(--ink-soft)}
.section-dark .link-more{color:var(--lime);border-color:rgba(198,242,78,.5)}

/* ===== 悬浮胶囊导航 ===== */
.site-header{position:sticky;top:0;z-index:60;padding:14px 20px 0;pointer-events:none}
.nav-shell{max-width:1200px;margin:0 auto;pointer-events:auto}
.site-nav{
  display:flex;align-items:center;justify-content:space-between;gap:18px;
  height:62px;padding:0 12px 0 22px;
  border-radius:var(--r-pill);
  background:rgba(255,255,255,.72);
  border:1px solid rgba(226,224,217,.9);
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
  transition:background .2s ease-out,box-shadow .2s ease-out,border-color .2s ease-out;
}
.site-header.is-scrolled .site-nav{background:rgba(245,243,238,.94);border-color:var(--line);box-shadow:var(--sh-sm)}
.brand{display:flex;align-items:center;gap:10px;flex-shrink:0}
.brand-mark{
  width:34px;height:34px;border-radius:11px;display:flex;align-items:center;justify-content:center;
  background:var(--ink);color:var(--lime);font-size:16px;font-weight:700;letter-spacing:0;
}
.brand-text{font-size:17px;font-weight:700;color:var(--ink);white-space:nowrap}
.nav-links{display:flex;align-items:center;gap:6px}
.nav-link{
  display:inline-block;padding:8px 14px;font-size:15px;color:var(--text-2);border-radius:var(--r-pill);
  position:relative;transition:color .18s ease-out,background .18s ease-out;
}
.nav-link::after{
  content:"";position:absolute;left:14px;right:14px;bottom:3px;height:2px;border-radius:2px;
  background:var(--lime);transform:scaleX(0);transform-origin:left;transition:transform .18s ease-out;
}
.nav-link:hover{color:var(--ink);background:rgba(14,58,51,.05)}
.nav-link:hover::after{transform:scaleX(1)}
.nav-link.is-active{color:var(--ink);font-weight:600}
.nav-link.is-active::after{transform:scaleX(1)}
.nav-actions{display:flex;align-items:center;gap:10px;flex-shrink:0}
.nav-toggle{
  display:none;width:44px;height:44px;border-radius:var(--r-pill);
  align-items:center;justify-content:center;color:var(--ink);
  border:1px solid var(--line);background:rgba(255,255,255,.6);
}
.nav-toggle svg{width:20px;height:20px}
.mobile-drawer{
  display:none;margin-top:10px;background:var(--sand);border:1px solid var(--line);
  border-radius:var(--r-lg);padding:14px;box-shadow:var(--sh-md);
}
.mobile-drawer.is-open{display:block}
.mobile-drawer a{
  display:flex;align-items:center;justify-content:space-between;
  min-height:48px;padding:0 14px;border-radius:12px;font-size:16px;color:var(--text);
}
.mobile-drawer a:hover,.mobile-drawer a.is-active{background:rgba(14,58,51,.07);color:var(--ink)}
.mobile-drawer .drawer-cta{margin-top:10px;justify-content:center;background:var(--lime);color:var(--ink);font-weight:600}

/* ===== 按钮 ===== */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:46px;padding:13px 26px;border-radius:var(--r-pill);
  font-size:15.5px;font-weight:600;letter-spacing:.01em;
  transition:transform .18s ease-out,box-shadow .18s ease-out,background .18s ease-out,color .18s ease-out,border-color .18s ease-out;
}
.btn-primary{background:var(--lime);color:var(--ink);box-shadow:var(--sh-sm)}
.btn-primary:hover{transform:translateY(-1px);box-shadow:var(--sh-md);background:#CEF566}
.btn-primary:active{transform:translateY(0);box-shadow:var(--sh-sm)}
.btn-ghost{background:transparent;color:var(--ink);border:1.5px solid var(--ink)}
.btn-ghost:hover{transform:translateY(-1px);background:rgba(14,58,51,.06);box-shadow:var(--sh-sm)}
.btn-ghost:active{transform:translateY(0)}
.btn-on-dark{background:transparent;color:var(--dtext);border:1.5px solid rgba(234,243,239,.42)}
.btn-on-dark:hover{border-color:var(--lime);color:var(--lime)}
.btn-sm{min-height:40px;padding:9px 20px;font-size:14.5px}
.btn-text{background:none;padding:0;min-height:auto;color:var(--ink);font-weight:600;border-bottom:2px solid var(--lime);border-radius:0}
.btn-text:hover{color:var(--ink-soft)}
.btn[disabled],.btn.is-disabled{opacity:.45;pointer-events:none}

/* ===== Hero ===== */
.hero{position:relative;background:var(--ink-deep);color:var(--dtext);overflow:hidden;padding:88px 0 92px}
.hero::before{
  content:"";position:absolute;inset:0;
  background-image:linear-gradient(rgba(198,242,78,.07) 1px,transparent 1px),linear-gradient(90deg,rgba(198,242,78,.07) 1px,transparent 1px);
  background-size:64px 64px;
  -webkit-mask-image:radial-gradient(120% 90% at 20% 10%,rgba(0,0,0,.9),transparent 72%);
  mask-image:radial-gradient(120% 90% at 20% 10%,rgba(0,0,0,.9),transparent 72%);
  pointer-events:none;
}
.hero::after{
  content:"";position:absolute;right:-120px;top:-80px;width:420px;height:420px;border-radius:50%;
  background:radial-gradient(circle,rgba(198,242,78,.16),transparent 68%);pointer-events:none;
}
.hero-inner{position:relative;display:grid;grid-template-columns:1.05fr .95fr;gap:56px;align-items:center;min-height:520px}
.hero-badge{display:inline-flex;align-items:center;gap:8px;font-size:13px;font-weight:600;color:var(--lime);background:rgba(198,242,78,.12);border:1px solid rgba(198,242,78,.28);border-radius:var(--r-pill);padding:6px 14px}
.hero-title{font-size:43px;line-height:1.18;font-weight:700;color:#FFFFFF;margin-top:22px;letter-spacing:0}
.hero-sub{margin-top:20px;font-size:17px;line-height:1.85;color:rgba(234,243,239,.78);max-width:600px}
.hero-cta{display:flex;flex-wrap:wrap;gap:14px;margin-top:32px}
.hero-points{display:flex;flex-wrap:wrap;gap:14px 26px;margin-top:34px;padding-top:26px;border-top:1px solid var(--line-dark)}
.hero-points li{display:flex;align-items:center;gap:8px;font-size:14.5px;color:rgba(234,243,239,.72)}
.hero-points svg{width:18px;height:18px;color:var(--lime);flex-shrink:0}
.hero-visual{position:relative}
.hero-img{width:100%;aspect-ratio:4/3;object-fit:cover;border-radius:var(--r-lg);border:1px solid var(--line-dark);box-shadow:var(--sh-lg)}
.hero-chip{
  position:absolute;left:-18px;bottom:26px;display:flex;align-items:center;gap:12px;
  background:rgba(8,35,31,.9);border:1px solid var(--line-dark);border-radius:var(--r-md);
  padding:14px 18px;backdrop-filter:blur(8px);-webkit-backdrop-filter:blur(8px);
}
.chip-dot{width:10px;height:10px;border-radius:50%;background:var(--lime);box-shadow:0 0 0 4px rgba(198,242,78,.16);flex-shrink:0}
.hero-chip strong{display:block;font-size:14px;color:#FFFFFF}
.hero-chip span{display:block;font-size:12.5px;color:rgba(234,243,239,.66)}

/* ===== 痛点提问区 ===== */
.pain-grid{display:grid;grid-template-columns:1.15fr 1fr;gap:24px}
.pain-card{
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-md);
  padding:28px;box-shadow:var(--sh-sm);transition:border-color .18s ease-out,transform .18s ease-out,box-shadow .18s ease-out;
}
.pain-card:hover{border-color:rgba(14,58,51,.3);transform:translateY(-2px);box-shadow:var(--sh-md)}
.pain-card.is-large{grid-row:span 2;display:flex;flex-direction:column;justify-content:center;padding:34px}
.pain-index{
  display:inline-flex;align-items:center;justify-content:center;
  width:38px;height:38px;border-radius:12px;background:rgba(14,58,51,.08);
  color:var(--ink);font-size:14px;font-weight:700;margin-bottom:18px;
}
.pain-card h3{font-size:19px;line-height:1.5;font-weight:700;color:var(--ink);margin-bottom:12px}
.pain-card.is-large h3{font-size:24px;line-height:1.45}
.pain-card p{font-size:15.5px;line-height:1.8;color:var(--text-2)}
.pain-note{margin-top:16px;font-size:14px;color:var(--text-3);display:flex;align-items:center;gap:8px}
.pain-note::before{content:"";width:22px;height:2px;border-radius:2px;background:var(--lime);display:inline-block}

/* ===== 方案卡片区 ===== */
.plan-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.plan-card{
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-md);
  padding:24px;display:flex;flex-direction:column;
  transition:border-color .18s ease-out,transform .18s ease-out,box-shadow .18s ease-out;
}
.plan-card:hover{border-color:rgba(14,58,51,.3);transform:translateY(-2px);box-shadow:var(--sh-md)}
.plan-card.is-main{grid-column:span 2;padding:28px}
.plan-card.is-side{grid-row:span 2}
.plan-thumb{width:100%;aspect-ratio:16/9;object-fit:cover;border-radius:12px;margin-bottom:20px}
.badge{
  display:inline-flex;align-items:center;font-size:13px;font-weight:600;line-height:1;
  padding:6px 12px;border-radius:var(--r-pill);background:rgba(14,58,51,.08);color:var(--ink);
}
.badge-outline{background:transparent;border:1px solid rgba(14,58,51,.28);color:var(--ink)}
.badge-lime{background:rgba(198,242,78,.22);border:1px solid rgba(14,58,51,.24);color:var(--ink)}
.plan-card h3{font-size:20px;font-weight:700;color:var(--ink);margin:16px 0 12px;line-height:1.45}
.plan-card.is-main h3{font-size:24px}
.plan-card p.lead{font-size:15.5px;line-height:1.8;color:var(--text-2);margin-bottom:16px}
.plan-list{margin-bottom:22px}
.plan-list li{display:flex;gap:10px;font-size:15px;line-height:1.75;color:var(--text-2);padding:5px 0}
.plan-list svg{width:18px;height:18px;color:var(--ink-soft);flex-shrink:0;margin-top:5px}
.plan-card .btn-text{margin-top:auto;align-self:flex-start}

/* ===== 分类入口条 ===== */
.topic-list{display:grid;gap:20px}
.topic-item{
  display:grid;grid-template-columns:220px 1fr auto;gap:26px;align-items:center;
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-md);padding:20px;
  transition:border-color .18s ease-out,box-shadow .18s ease-out,transform .18s ease-out;
}
.topic-item:hover{border-color:rgba(14,58,51,.3);box-shadow:var(--sh-md);transform:translateY(-2px)}
.topic-item img{width:100%;aspect-ratio:4/3;object-fit:cover;border-radius:12px}
.topic-body h3{font-size:20px;font-weight:700;color:var(--ink);margin-bottom:10px}
.topic-body p{font-size:15.5px;line-height:1.8;color:var(--text-2)}
.topic-tags{display:flex;flex-wrap:wrap;gap:8px;margin-top:14px}
.tag{font-size:13px;color:var(--text-2);border:1px solid var(--line);border-radius:var(--r-pill);padding:4px 11px;background:rgba(245,243,238,.7)}
.topic-item .btn{white-space:nowrap}

/* ===== 数据条带 ===== */
.stats-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:22px;margin-top:12px}
.stat-card{
  background:rgba(255,255,255,.05);border:1px solid var(--line-dark);border-radius:var(--r-md);
  padding:26px 22px;transition:border-color .18s ease-out,background .18s ease-out;
}
.stat-card:hover{border-color:rgba(198,242,78,.4);background:rgba(255,255,255,.08)}
.stat-num{font-size:40px;line-height:1.1;font-weight:700;color:var(--lime);font-variant-numeric:tabular-nums;letter-spacing:0}
.stat-num small{font-size:15px;font-weight:500;color:rgba(234,243,239,.72);margin-left:6px}
.stat-label{margin-top:12px;font-size:15.5px;font-weight:600;color:#FFFFFF}
.stat-note{margin-top:8px;font-size:13px;line-height:1.65;color:rgba(234,243,239,.62)}

/* ===== 最新信息 ===== */
.news-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.news-card{
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-md);overflow:hidden;
  display:flex;flex-direction:column;
  transition:border-color .18s ease-out,transform .18s ease-out,box-shadow .18s ease-out;
}
.news-card:hover{border-color:rgba(14,58,51,.3);transform:translateY(-2px);box-shadow:var(--sh-md)}
.news-thumb{display:block;overflow:hidden}
.news-thumb img{width:100%;aspect-ratio:16/9;object-fit:cover;transition:transform .3s ease-out}
.news-card:hover .news-thumb img{transform:scale(1.03)}
.news-body{padding:22px;display:flex;flex-direction:column;flex:1}
.news-body h3{font-size:18px;line-height:1.5;font-weight:700;color:var(--ink);margin:14px 0 10px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.news-body h3 a:hover{color:var(--ink-soft)}
.news-body p{font-size:15px;line-height:1.8;color:var(--text-2);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.news-meta{margin-top:18px;padding-top:14px;border-top:1px solid var(--line);font-size:13px;color:var(--text-3);display:flex;align-items:center;gap:10px}
.empty-state{
  grid-column:1/-1;background:rgba(226,224,217,.35);border:1px dashed var(--line);
  border-radius:var(--r-md);padding:52px 24px;text-align:center;
}
.empty-state p{font-size:14px;color:var(--text-3);margin-bottom:18px}

/* ===== 触发带 ===== */
.trigger-band{
  background:linear-gradient(90deg,rgba(198,242,78,.22),rgba(198,242,78,.06));
  border:1px solid rgba(14,58,51,.14);border-radius:var(--r-lg);
  padding:26px 30px;display:flex;align-items:center;justify-content:space-between;gap:24px;flex-wrap:wrap;
}
.trigger-band strong{display:block;font-size:18px;font-weight:700;color:var(--ink)}
.trigger-band span{display:block;font-size:14.5px;color:var(--text-2);margin-top:6px}

/* ===== FAQ ===== */
.faq-list{max-width:900px;margin:0 auto;border-top:1px solid var(--line)}
.faq-item{border-bottom:1px solid var(--line)}
.faq-item summary{
  list-style:none;display:flex;align-items:center;justify-content:space-between;gap:20px;
  min-height:64px;padding:16px 4px;font-size:17px;font-weight:600;color:var(--ink);cursor:pointer;
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary svg{width:20px;height:20px;flex-shrink:0;color:var(--ink-soft);transition:transform .2s ease-out}
.faq-item[open] summary svg{transform:rotate(180deg)}
.faq-item .faq-body{padding:0 4px 22px;font-size:15px;line-height:1.85;color:var(--text-2);max-width:820px}

/* ===== 底部 CTA ===== */
.cta-band{
  position:relative;overflow:hidden;background:var(--ink);color:var(--dtext);
  border-radius:var(--r-lg);padding:52px;display:grid;grid-template-columns:1.4fr auto;gap:36px;align-items:center;
}
.cta-band::before{
  content:"";position:absolute;inset:0;
  background-image:linear-gradient(rgba(198,242,78,.08) 1px,transparent 1px),linear-gradient(90deg,rgba(198,242,78,.08) 1px,transparent 1px);
  background-size:52px 52px;opacity:.7;pointer-events:none;
}
.cta-band h2{position:relative;font-size:30px;line-height:1.3;font-weight:700;color:#FFFFFF}
.cta-band p{position:relative;margin-top:14px;font-size:16px;color:rgba(234,243,239,.76);max-width:640px}
.cta-actions{position:relative;display:flex;gap:14px;flex-wrap:wrap}

/* ===== 页脚 ===== */
.site-footer{background:var(--ink-deep);color:var(--dtext);padding:72px 0 28px;margin-top:0}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:40px}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:18px}
.footer-brand .brand-mark{background:rgba(198,242,78,.14);color:var(--lime)}
.footer-brand span{font-size:17px;font-weight:700;color:#FFFFFF}
.footer-desc{font-size:14.5px;line-height:1.8;color:rgba(234,243,239,.66);max-width:340px}
.footer-col h4{font-size:14px;font-weight:600;color:#FFFFFF;margin-bottom:16px;letter-spacing:.02em}
.footer-col li{margin-bottom:11px}
.footer-col a{font-size:14.5px;color:rgba(234,243,239,.68);transition:color .18s ease-out}
.footer-col a:hover{color:var(--lime)}
.footer-contact{font-size:14.5px;color:rgba(234,243,239,.68);line-height:1.9}
.footer-bottom{
  margin-top:48px;padding-top:22px;border-top:1px solid var(--line-dark);
  display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:13px;color:rgba(234,243,239,.5);
}
.footer-bottom a{color:rgba(234,243,239,.62)}
.footer-bottom a:hover{color:var(--lime)}

/* ===== 弹层 ===== */
.lead-modal{position:fixed;inset:0;z-index:120;display:none}
.lead-modal.is-open{display:block}
.lead-mask{position:absolute;inset:0;background:rgba(8,35,31,.62);backdrop-filter:blur(3px);-webkit-backdrop-filter:blur(3px)}
.lead-dialog{
  position:relative;z-index:2;width:calc(100% - 40px);max-width:540px;margin:6vh auto;
  background:var(--card);border-radius:var(--r-lg);box-shadow:var(--sh-lg);padding:32px;
}
.lead-dialog h2{font-size:21px;font-weight:700;color:var(--ink)}
.lead-dialog .lead-desc{margin-top:10px;font-size:14.5px;color:var(--text-2)}
.lead-close{position:absolute;top:16px;right:16px;width:36px;height:36px;border-radius:50%;background:rgba(14,58,51,.06);color:var(--ink);font-size:20px;line-height:1;display:flex;align-items:center;justify-content:center}
.lead-close:hover{background:rgba(14,58,51,.12)}
.lead-form{margin-top:24px;display:grid;gap:16px}
.field label{display:block;font-size:13px;color:var(--text-3);margin-bottom:7px}
.field input,.field select,.field textarea{
  width:100%;min-height:50px;padding:12px 14px;border:1px solid var(--line);border-radius:12px;
  background:#FFFFFF;font-size:15px;transition:border-color .18s ease-out,box-shadow .18s ease-out;
}
.field textarea{min-height:96px;resize:vertical}
.field input:focus,.field select:focus,.field textarea:focus{
  outline:none;border-color:var(--ink);box-shadow:0 0 0 3px rgba(198,242,78,.55);
}
.field.is-error input,.field.is-error select{border-color:var(--err)}
.field-error{font-size:12.5px;color:var(--err);margin-top:6px}
.check-row{display:flex;align-items:flex-start;gap:10px;font-size:13px;color:var(--text-2);line-height:1.7}
.check-row input{width:18px;height:18px;min-height:18px;margin-top:3px;accent-color:var(--ink)}
.check-row a{color:var(--ink);border-bottom:1px solid var(--lime)}
.lead-form .btn{width:100%}
.form-hint{font-size:13px;color:var(--ok);display:none}
.form-hint.is-visible{display:block}

/* ===== 响应式 ===== */
@media (max-width:1024px){
  .nav-links,.nav-actions .btn{display:none}
  .nav-toggle{display:inline-flex}
  .hero-inner{grid-template-columns:1fr;gap:40px;min-height:auto}
  .hero-title{font-size:34px}
  .pain-grid{grid-template-columns:1fr}
  .pain-card.is-large{grid-row:auto}
  .plan-grid{grid-template-columns:repeat(2,1fr)}
  .plan-card.is-main{grid-column:span 2}
  .plan-card.is-side{grid-row:auto}
  .stats-grid{grid-template-columns:repeat(2,1fr)}
  .news-grid{grid-template-columns:repeat(2,1fr)}
  .topic-item{grid-template-columns:180px 1fr;gap:20px}
  .topic-item .btn{grid-column:1/-1;justify-self:start}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
  .cta-band{grid-template-columns:1fr;padding:42px}
}
@media (max-width:768px){
  body{font-size:16px;line-height:1.8}
  .container{padding:0 20px}
  .section{padding:64px 0}
  .section-dark{padding:56px 0}
  .sec-title{font-size:24px}
  .hero{padding:56px 0 64px}
  .hero-title{font-size:29px;line-height:1.28}
  .hero-chip{left:0;bottom:-14px}
  .topic-item{grid-template-columns:1fr}
  .topic-item img{aspect-ratio:16/9}
  .stats-grid{grid-template-columns:1fr}
  .news-grid{grid-template-columns:1fr}
  .cta-band{padding:36px 26px}
  .cta-band h2{font-size:23px}
  .lead-dialog{margin:auto;width:100%;max-width:none;position:absolute;left:0;right:0;bottom:0;top:auto;border-radius:20px 20px 0 0;max-height:88vh;overflow-y:auto;padding:28px 22px 32px}
}
@media (max-width:520px){
  .plan-grid{grid-template-columns:1fr}
  .plan-card.is-main{grid-column:span 1}
  .hero-cta .btn{width:100%}
  .btn{width:100%}
  .hero-cta{flex-direction:column}
  .trigger-band .btn,.plan-card .btn-text,.link-more{width:auto}
  .nav-shell{pointer-events:auto}
}
@media (prefers-reduced-motion:reduce){
  *{transition-duration:.01ms !important;animation-duration:.01ms !important}
  html{scroll-behavior:auto}
}

/* roulang page: article */
:root{
  --ink:#0E3A33;
  --ink-deep:#08231F;
  --ink-light:#17564C;
  --lime:#C6F24E;
  --orange:#E8552F;
  --sand:#F5F3EE;
  --sand-deep:#EFEDE6;
  --card:#FFFFFF;
  --text:#1B2422;
  --text-2:#5A6663;
  --text-3:#8A948F;
  --line:#E2E0D9;
  --line-dark:rgba(255,255,255,.10);
  --dark-text:#EAF3EF;
  --ok:#2F9E6B;
  --warn:#D97706;
  --err:#C63C2E;
  --r-sm:10px;
  --r-md:16px;
  --r-lg:20px;
  --r-pill:999px;
  --sh-sm:0 1px 2px rgba(14,58,51,.06);
  --sh-md:0 10px 28px -14px rgba(14,58,51,.20);
  --sh-lg:0 28px 64px -28px rgba(14,58,51,.30);
  --container:1240px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  background:var(--sand);
  color:var(--text);
  font-family:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:17px;
  line-height:1.85;
  font-weight:400;
  letter-spacing:.01em;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;height:auto}
a{color:inherit;text-decoration:none}
button,input,select,textarea{font:inherit;color:inherit}
button{cursor:pointer;border:0;background:none}
h1,h2,h3,h4{margin:0;font-weight:700;color:var(--ink-deep);letter-spacing:.01em}
p{margin:0}
ul,ol{margin:0;padding:0;list-style:none}
table{border-collapse:collapse}
time,.num{font-variant-numeric:tabular-nums}
:focus-visible{outline:2px solid var(--lime);outline-offset:3px;border-radius:6px}

.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 20px}
@media (min-width:768px){.container{padding:0 32px}}

/* ---------- header / nav ---------- */
.site-header{position:sticky;top:0;z-index:80;padding:10px 0;transition:padding .2s ease-out}
.site-header.is-scrolled{padding:6px 0}
.nav-shell{max-width:var(--container);margin:0 auto;padding:0 20px}
@media (min-width:768px){.nav-shell{padding:0 32px}}
.site-nav{
  display:flex;align-items:center;gap:16px;
  height:62px;padding:0 10px 0 16px;
  border-radius:var(--r-pill);
  background:rgba(255,255,255,.72);
  -webkit-backdrop-filter:blur(14px);
  backdrop-filter:blur(14px);
  border:1px solid rgba(226,224,217,.9);
  box-shadow:var(--sh-sm);
  transition:background .2s ease-out,box-shadow .2s ease-out,border-color .2s ease-out;
}
.site-header.is-scrolled .site-nav{background:rgba(245,243,238,.92);border-color:var(--line);box-shadow:var(--sh-md)}
.brand{display:flex;align-items:center;gap:10px;flex:0 0 auto}
.brand-mark{
  display:inline-flex;align-items:center;justify-content:center;
  width:32px;height:32px;border-radius:10px;
  background:var(--lime);color:var(--ink-deep);
  font-weight:700;font-size:16px;line-height:1;
}
.brand-text{font-weight:700;font-size:16px;color:var(--ink-deep);white-space:nowrap}
.nav-links{display:none;align-items:center;gap:4px;margin-left:6px}
@media (min-width:1025px){.nav-links{display:flex}}
.nav-link{
  position:relative;display:inline-flex;align-items:center;height:38px;padding:0 14px;
  border-radius:var(--r-pill);font-size:15px;color:var(--text-2);
  transition:color .18s ease-out,background .18s ease-out;
}
.nav-link:hover{color:var(--ink);background:rgba(14,58,51,.06)}
.nav-link.is-active{color:var(--ink);font-weight:600}
.nav-link.is-active::after{content:"";position:absolute;left:14px;right:14px;bottom:3px;height:2px;border-radius:2px;background:var(--lime)}
.nav-actions{margin-left:auto;display:flex;align-items:center;gap:8px}
.nav-toggle{
  display:inline-flex;align-items:center;justify-content:center;
  width:44px;height:44px;border-radius:var(--r-pill);color:var(--ink);
  border:1.5px solid rgba(14,58,51,.18);background:rgba(255,255,255,.6);
  transition:background .18s ease-out,border-color .18s ease-out;
}
.nav-toggle:hover{background:#fff;border-color:rgba(14,58,51,.35)}
.nav-toggle svg{width:22px;height:22px}
@media (min-width:1025px){.nav-toggle{display:none}}
.mobile-drawer{
  display:none;flex-direction:column;gap:4px;
  margin-top:10px;padding:12px;
  border-radius:var(--r-lg);background:var(--sand);
  border:1px solid var(--line);box-shadow:var(--sh-md);
}
.mobile-drawer.is-open{display:flex}
.mobile-drawer a{
  display:flex;align-items:center;height:48px;padding:0 16px;
  border-radius:var(--r-sm);font-size:16px;color:var(--text-2);
}
.mobile-drawer a:hover{background:rgba(14,58,51,.06);color:var(--ink)}
.mobile-drawer a.is-active{color:var(--ink);font-weight:600;background:rgba(198,242,78,.22)}
.drawer-cta{margin-top:8px;width:100%}
@media (min-width:1025px){.mobile-drawer{display:none!important}}

/* ---------- buttons / badges ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:44px;padding:12px 26px;border-radius:var(--r-pill);
  font-size:15px;font-weight:600;border:1.5px solid transparent;text-align:center;
  transition:transform .18s ease-out,box-shadow .18s ease-out,background .18s ease-out,border-color .18s ease-out,color .18s ease-out;
}
.btn-primary{background:var(--lime);color:var(--ink-deep);box-shadow:var(--sh-sm)}
.btn-primary:hover{background:#d5f76c;transform:translateY(-1px);box-shadow:var(--sh-md)}
.btn-primary:active{transform:none;box-shadow:var(--sh-sm)}
.btn-ghost{background:transparent;border-color:var(--ink);color:var(--ink)}
.btn-ghost:hover{background:rgba(14,58,51,.06);transform:translateY(-1px)}
.btn-ghost:active{transform:none}
.btn-sm{min-height:40px;padding:9px 18px;font-size:14px}
.btn-block{width:100%}
.btn[disabled]{opacity:.45;pointer-events:none}
.link-btn{
  display:inline-flex;align-items:center;gap:6px;font-size:15px;font-weight:600;color:var(--ink);
  border-bottom:1.5px solid rgba(198,242,78,.95);padding-bottom:2px;
  transition:color .18s ease-out,border-color .18s ease-out;
}
.link-btn:hover{color:var(--ink-deep);border-bottom-color:var(--ink-deep)}
.link-btn svg{width:18px;height:18px}
.badge{
  display:inline-flex;align-items:center;gap:6px;
  font-size:13px;line-height:1.5;padding:4px 12px;border-radius:var(--r-pill);
  background:rgba(14,58,51,.08);color:var(--ink);font-weight:500;
}
.badge-cat{background:rgba(198,242,78,.18);border:1px solid rgba(160,205,52,.85);color:var(--ink-deep)}
.meta-time{font-size:14px;color:var(--text-3)}
.dot{width:4px;height:4px;border-radius:50%;background:#C4BFB4;display:inline-block}

/* ---------- sections ---------- */
.section{padding:52px 0}
@media (min-width:768px){.section{padding:64px 0}}
@media (min-width:1024px){.section{padding:88px 0}}
.section-sm{padding:36px 0}
@media (min-width:1024px){.section-sm{padding:48px 0}}
.section-alt{background:var(--sand-deep);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.section-head{max-width:760px;margin-bottom:28px}
.section-head h2{font-size:22px;line-height:1.3}
@media (min-width:768px){.section-head h2{font-size:29px}}
.section-head p{margin-top:12px;font-size:16px;color:var(--text-2)}

/* ---------- article hero ---------- */
.article-hero{background:var(--sand-deep);border-bottom:1px solid var(--line);padding:30px 0 36px}
@media (min-width:1024px){.article-hero{padding:42px 0 48px}}
.breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:14px;color:var(--text-3);margin-bottom:18px}
.breadcrumb a{transition:color .18s ease-out}
.breadcrumb a:hover{color:var(--ink)}
.breadcrumb .sep{color:#C4BFB4}
.breadcrumb .current{color:var(--ink);font-weight:500;max-width:24em;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.article-head{max-width:880px}
.article-head h1{font-size:28px;line-height:1.28;margin:14px 0 18px;word-break:break-word}
@media (min-width:768px){.article-head h1{font-size:42px;line-height:1.18}}
.article-meta{
  display:flex;flex-wrap:wrap;align-items:center;gap:12px;
  padding-top:16px;border-top:1px solid var(--line);
  font-size:14px;color:var(--text-3);
}
.article-cover{margin:26px 0 0}
.article-cover img{width:100%;border-radius:var(--r-md);box-shadow:var(--sh-md)}

/* ---------- article layout ---------- */
.article-layout{display:grid;grid-template-columns:1fr;gap:32px}
@media (min-width:1024px){
  .article-layout{grid-template-columns:200px minmax(0,1fr) 220px;gap:40px;align-items:start}
}
.article-main{min-width:0}
@media (min-width:1024px){.article-main{max-width:760px}}
.toc-wrap{display:none}
@media (min-width:1024px){
  .toc-wrap{display:block;position:sticky;top:96px}
}
.toc-title{font-size:13px;font-weight:600;color:var(--text-3);letter-spacing:.08em;margin-bottom:14px;padding-left:12px}
.toc ol{display:flex;flex-direction:column;gap:2px;border-left:2px solid var(--line);padding-left:0}
.toc a{
  display:block;padding:7px 10px 7px 12px;font-size:14px;line-height:1.5;color:var(--text-2);
  border-left:2px solid transparent;margin-left:-2px;
  transition:color .18s ease-out,border-color .18s ease-out,background .18s ease-out;
}
.toc a:hover{color:var(--ink);border-left-color:var(--lime);background:rgba(14,58,51,.04)}
.article-side{display:block}
@media (min-width:1024px){.article-side{position:sticky;top:96px}}

/* ---------- prose ---------- */
.prose-cn{font-size:17px;line-height:1.85;color:var(--text);word-break:break-word}
.prose-cn > * + *{margin-top:22px}
.prose-cn p{margin:0;text-align:justify}
.prose-cn h2{font-size:23px;line-height:1.32;margin-top:40px;padding-bottom:10px;border-bottom:1px solid var(--line)}
.prose-cn h3{font-size:19px;line-height:1.45;margin-top:28px}
.prose-cn h4{font-size:17px;line-height:1.5;margin-top:22px}
.prose-cn ul,.prose-cn ol{padding-left:1.2em}
.prose-cn ul{list-style:disc}
.prose-cn ol{list-style:decimal}
.prose-cn li{margin-top:10px}
.prose-cn li::marker{color:var(--ink-light)}
.prose-cn strong{color:var(--ink-deep)}
.prose-cn a{color:var(--ink);border-bottom:1.5px solid rgba(198,242,78,.95);padding-bottom:1px}
.prose-cn a:hover{color:var(--ink-deep);border-bottom-color:var(--ink-deep)}
.prose-cn blockquote{
  margin:26px 0;padding:16px 20px;background:var(--sand-deep);
  border-left:3px solid var(--lime);border-radius:0 12px 12px 0;color:var(--text-2);
}
.prose-cn blockquote p{text-align:left}
.prose-cn img{border-radius:12px;margin:26px auto;width:100%}
.prose-cn figure{margin:26px 0}
.prose-cn figcaption{font-size:13px;color:var(--text-3);text-align:center;margin-top:10px}
.prose-cn code{background:var(--sand-deep);padding:2px 6px;border-radius:6px;font-size:15px}
.prose-cn table{width:100%;font-size:15px;border:1px solid var(--line);border-radius:12px;overflow:hidden}
.prose-cn th{background:var(--sand-deep);text-align:left;font-weight:600;color:var(--ink-deep)}
.prose-cn th,.prose-cn td{padding:12px 14px;border-bottom:1px solid var(--line)}
.prose-cn tr:last-child td{border-bottom:0}
.prose-cn pre{background:var(--ink-deep);color:var(--dark-text);padding:18px;border-radius:12px;overflow-x:auto;font-size:14px;line-height:1.7}
.prose-cn pre code{background:none;padding:0;color:inherit}
.prose-cn hr{border:0;border-top:1px solid var(--line);margin:32px 0}

.article-foot{
  margin-top:46px;padding-top:24px;border-top:1px solid var(--line);
  display:flex;flex-wrap:wrap;gap:16px;align-items:center;justify-content:space-between;
}
.tag-list{display:flex;flex-wrap:wrap;gap:8px}
.empty-state{
  margin-top:8px;padding:36px 20px;text-align:center;
  background:var(--sand-deep);border:1px dashed #D6D2C7;border-radius:var(--r-md);
}
.empty-state p{font-size:14px;color:var(--text-2);margin-bottom:16px}

/* ---------- cta card ---------- */
.cta-card{background:var(--ink-deep);color:var(--dark-text);border-radius:var(--r-md);padding:22px;box-shadow:var(--sh-md)}
.cta-card h3{color:#fff;font-size:18px;line-height:1.45;margin-bottom:8px}
.cta-card p{font-size:14px;line-height:1.7;color:rgba(234,243,239,.78);margin-bottom:16px}
.cta-card .btn{width:100%}
.cta-card .badge{background:rgba(198,242,78,.16);color:var(--lime);margin-bottom:12px}

/* ---------- faq ---------- */
.faq-list{max-width:880px;border-top:1px solid var(--line)}
.faq-item{border-bottom:1px solid var(--line)}
.faq-item summary{
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  min-height:62px;padding:16px 4px;cursor:pointer;list-style:none;
  font-size:17px;font-weight:600;line-height:1.5;color:var(--ink-deep);
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary .chev{width:20px;height:20px;flex:0 0 auto;color:var(--ink-light);transition:transform .2s ease-out}
.faq-item[open] summary .chev{transform:rotate(180deg)}
.faq-item summary:hover{color:var(--ink-light)}
.faq-body{padding:0 4px 20px;font-size:15px;line-height:1.8;color:var(--text-2);max-width:820px}

/* ---------- cta band ---------- */
.cta-band{
  background:var(--ink);color:var(--dark-text);border-radius:var(--r-lg);
  padding:34px 26px;display:flex;flex-wrap:wrap;gap:20px;align-items:center;justify-content:space-between;
  box-shadow:var(--sh-md);
}
@media (min-width:768px){.cta-band{padding:40px 38px}}
.cta-band h2{color:#fff;font-size:22px;line-height:1.35}
@media (min-width:768px){.cta-band h2{font-size:27px}}
.cta-band p{margin-top:10px;font-size:15px;color:rgba(234,243,239,.8);max-width:640px}
.cta-band .actions{display:flex;flex-wrap:wrap;gap:12px}
.cta-band .btn-ghost{border-color:rgba(234,243,239,.55);color:#EAF3EF}
.cta-band .btn-ghost:hover{background:rgba(255,255,255,.08);border-color:#EAF3EF}

/* ---------- footer ---------- */
.site-footer{background:var(--ink-deep);color:var(--dark-text);padding:56px 0 24px;margin-top:8px}
.footer-grid{display:grid;gap:32px;grid-template-columns:1fr}
@media (min-width:768px){.footer-grid{grid-template-columns:repeat(2,1fr)}}
@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;font-size:17px;font-weight:700;color:#fff;margin-bottom:14px}
.footer-desc{font-size:14px;line-height:1.75;color:rgba(234,243,239,.72);max-width:330px}
.footer-col h4{font-size:15px;color:#fff;margin-bottom:14px}
.footer-col ul{display:flex;flex-direction:column;gap:10px}
.footer-col a{font-size:14px;color:rgba(234,243,239,.72);transition:color .18s ease-out}
.footer-col a:hover{color:var(--lime)}
.footer-contact{font-size:14px;line-height:1.9;color:rgba(234,243,239,.72)}
.footer-contact a{color:var(--lime)}
.footer-bottom{
  margin-top:36px;padding-top:20px;border-top:1px solid var(--line-dark);
  display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;
  font-size:13px;color:rgba(234,243,239,.6);
}
.footer-bottom a{color:rgba(234,243,239,.78);transition:color .18s ease-out}
.footer-bottom a:hover{color:var(--lime)}

/* ---------- lead modal ---------- */
.lead-modal{position:fixed;inset:0;z-index:120;display:none}
.lead-modal.is-open{display:block}
.lead-backdrop{position:absolute;inset:0;background:rgba(8,35,31,.62);-webkit-backdrop-filter:blur(3px);backdrop-filter:blur(3px)}
.lead-panel{
  position:absolute;left:50%;bottom:0;transform:translateX(-50%);
  width:100%;max-width:560px;max-height:88vh;overflow:auto;
  background:#fff;border-radius:20px 20px 0 0;padding:26px 22px 24px;box-shadow:var(--sh-lg);
}
@media (min-width:768px){
  .lead-panel{top:50%;bottom:auto;transform:translate(-50%,-50%);border-radius:20px;padding:30px 28px}
}
.lead-panel h3{font-size:20px;line-height:1.4;margin-bottom:8px}
.lead-sub{font-size:14px;color:var(--text-2);margin-bottom:20px}
.lead-close{
  position:absolute;top:14px;right:14px;width:40px;height:40px;
  display:inline-flex;align-items:center;justify-content:center;border-radius:var(--r-pill);
  color:var(--text-2);transition:background .18s ease-out,color .18s ease-out;
}
.lead-close:hover{background:rgba(14,58,51,.08);color:var(--ink)}
.lead-close svg{width:20px;height:20px}
.field{display:flex;flex-direction:column;gap:6px;margin-bottom:14px}
.field label{font-size:13px;color:var(--text-3)}
.field input,.field select,.field textarea{
  width:100%;min-height:50px;padding:12px 14px;border-radius:12px;
  background:#fff;border:1px solid var(--line);font-size:15px;color:var(--text);
  transition:border-color .18s ease-out,box-shadow .18s ease-out;
}
.field textarea{min-height:96px;resize:vertical;line-height:1.7}
.field input:focus,.field select:focus,.field textarea:focus{
  outline:none;border-color:var(--ink);box-shadow:0 0 0 3px rgba(198,242,78,.65);
}
.check-row{display:flex;align-items:flex-start;gap:10px;font-size:13px;color:var(--text-2);line-height:1.6;margin:4px 0 18px}
.check-row input{width:18px;height:18px;margin-top:2px;accent-color:#0E3A33;flex:0 0 auto}
.check-row a{color:var(--ink);border-bottom:1.5px solid rgba(198,242,78,.95)}
.form-hint{font-size:13px;margin-top:12px;min-height:18px}
.form-hint.is-ok{color:var(--ok)}
.form-hint.is-error{color:var(--err)}

@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  *{transition-duration:.01ms!important;animation-duration:.01ms!important}
}

/* roulang page: category1 */
:root{
  --ink:#0E3A33;
  --ink-deep:#08231F;
  --ink-light:#17564C;
  --lime:#C6F24E;
  --lime-soft:rgba(198,242,78,.28);
  --orange:#E8552F;
  --sand:#F5F3EE;
  --card:#FFFFFF;
  --dark-text:#EAF3EF;
  --text:#1B2422;
  --text-2:#5A6663;
  --text-3:#8A948F;
  --line:#E2E0D9;
  --line-dark:rgba(255,255,255,.10);
  --r-sm:10px;
  --r-md:16px;
  --r-lg:20px;
  --r-pill:999px;
  --sh-sm:0 1px 2px rgba(14,58,51,.06);
  --sh-md:0 10px 28px -14px rgba(14,58,51,.20);
  --sh-lg:0 28px 64px -28px rgba(14,58,51,.30);
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
  background:var(--sand);
  color:var(--text);
  font-size:17px;
  line-height:1.85;
  letter-spacing:0;
  -webkit-font-smoothing:antialiased;
}
img{display:block;max-width:100%}
a{color:inherit;text-decoration:none}
button{font:inherit;cursor:pointer;border:0;background:none;color:inherit}
h1,h2,h3,h4{margin:0;font-weight:700;line-height:1.3}
p{margin:0}
ul,ol{margin:0;padding:0;list-style:none}
table{border-collapse:collapse}
:focus-visible{outline:2px solid var(--lime);outline-offset:2px;border-radius:6px}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 32px}
.skip-link{position:absolute;left:-9999px;top:0;background:var(--ink);color:#fff;padding:10px 16px;border-radius:0 0 12px 0;z-index:120}
.skip-link:focus{left:0}

/* ============ 悬浮胶囊导航 ============ */
.site-header{position:sticky;top:0;z-index:60;padding:14px 0;transition:padding .2s ease-out}
.site-header.is-scrolled{padding:8px 0}
.nav-shell{position:relative;width:100%;max-width:1200px;margin:0 auto;padding:0 32px}
.site-nav{
  display:flex;align-items:center;gap:20px;
  height:62px;padding:0 12px 0 16px;
  border-radius:var(--r-pill);
  background:rgba(255,255,255,.72);
  -webkit-backdrop-filter:blur(14px);
  backdrop-filter:blur(14px);
  border:1px solid rgba(226,224,217,.9);
  box-shadow:var(--sh-sm);
  transition:background .2s ease-out,box-shadow .2s ease-out,border-color .2s ease-out;
}
.site-header.is-scrolled .site-nav{background:rgba(245,243,238,.94);box-shadow:var(--sh-md);border-color:var(--line)}
.brand{display:flex;align-items:center;gap:10px;flex:0 0 auto}
.brand-mark{
  display:grid;place-items:center;width:34px;height:34px;border-radius:11px;
  background:var(--ink);color:var(--lime);font-weight:700;font-size:16px;line-height:1;
  font-variant-numeric:tabular-nums;
}
.brand-text{font-size:17px;font-weight:700;color:var(--ink);white-space:nowrap}
.nav-links{display:flex;align-items:center;gap:2px;margin-left:auto}
.nav-link{
  position:relative;display:inline-flex;align-items:center;
  height:40px;padding:0 12px;font-size:15px;color:var(--text-2);
  border-radius:var(--r-pill);transition:color .16s ease-out,background .16s ease-out;
}
.nav-link::after{
  content:"";position:absolute;left:50%;bottom:4px;transform:translateX(-50%);
  width:0;height:2px;border-radius:2px;background:var(--lime);transition:width .18s ease-out;
}
.nav-link:hover{color:var(--ink);background:rgba(14,58,51,.05)}
.nav-link:hover::after{width:22px}
.nav-link.is-active{color:var(--ink);font-weight:600}
.nav-link.is-active::after{width:26px}
.nav-actions{display:flex;align-items:center;gap:8px;flex:0 0 auto}
.nav-toggle{
  display:none;align-items:center;justify-content:center;
  width:44px;height:44px;border-radius:var(--r-pill);
  border:1px solid var(--line);background:#fff;color:var(--ink);
}
.nav-toggle svg{width:20px;height:20px}
.mobile-drawer{
  display:none;position:absolute;left:0;right:0;top:calc(100% + 10px);
  background:var(--sand);border:1px solid var(--line);border-radius:var(--r-lg);
  padding:12px;box-shadow:var(--sh-lg);z-index:70;
}
.mobile-drawer.is-open{display:block}
.mobile-drawer a{
  display:flex;align-items:center;height:48px;padding:0 16px;border-radius:12px;
  font-size:16px;color:var(--text-2);transition:background .16s ease-out,color .16s ease-out;
}
.mobile-drawer a:hover{background:rgba(14,58,51,.06);color:var(--ink)}
.mobile-drawer a.is-active{color:var(--ink);font-weight:600;background:var(--lime-soft)}
.drawer-cta{width:100%;margin-top:10px}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:48px;padding:0 26px;border-radius:var(--r-pill);
  font-size:15.5px;font-weight:600;line-height:1;letter-spacing:0;
  border:1.5px solid transparent;
  transition:transform .18s ease-out,box-shadow .18s ease-out,background .18s ease-out,border-color .18s ease-out,color .18s ease-out;
}
.btn:active{transform:translateY(0)}
.btn-primary{background:var(--lime);color:var(--ink-deep)}
.btn-primary:hover{transform:translateY(-1px);background:#cff65f;box-shadow:0 14px 30px -16px rgba(14,58,51,.55)}
.btn-ghost{background:transparent;border-color:rgba(14,58,51,.42);color:var(--ink)}
.btn-ghost:hover{background:rgba(14,58,51,.06);transform:translateY(-1px)}
.btn-light{background:transparent;border-color:rgba(234,243,239,.42);color:var(--dark-text)}
.btn-light:hover{background:rgba(234,243,239,.10);transform:translateY(-1px)}
.btn-sm{min-height:40px;padding:0 18px;font-size:14.5px}
.btn-lg{min-height:54px;padding:0 30px;font-size:16px}
.btn[disabled]{opacity:.45;pointer-events:none}
.link-more{
  display:inline-flex;align-items:center;gap:6px;font-size:15px;font-weight:600;
  color:var(--ink);border-bottom:2px solid var(--lime);padding-bottom:2px;
  transition:gap .18s ease-out,color .18s ease-out;
}
.link-more:hover{gap:10px;color:var(--ink-light)}
.link-more svg{width:16px;height:16px}

/* ============ 徽章 / 标签 ============ */
.badge{
  display:inline-flex;align-items:center;gap:6px;
  font-size:13px;line-height:1;padding:6px 12px;border-radius:var(--r-pill);
  background:rgba(14,58,51,.08);color:var(--ink);font-weight:500;
}
.badge-lime{background:rgba(198,242,78,.20);border:1px solid rgba(14,58,51,.16)}
.badge-time{background:transparent;color:var(--text-3);padding:0;font-size:13.5px;font-variant-numeric:tabular-nums}

/* ============ 面包屑 ============ */
.breadcrumb{display:flex;align-items:center;gap:8px;font-size:14px;color:var(--text-3);flex-wrap:wrap}
.breadcrumb a{transition:color .16s ease-out}
.breadcrumb a:hover{color:var(--ink)}
.breadcrumb .sep{color:var(--line)}
.breadcrumb .current{color:var(--ink)}

/* ============ 分类页首屏 ============ */
.cat-hero{
  padding:44px 0 76px;
  background:
    radial-gradient(880px 420px at 88% -12%, rgba(198,242,78,.22), transparent 62%),
    var(--sand);
}
.cat-hero-grid{display:grid;grid-template-columns:minmax(0,1.04fr) minmax(0,.96fr);gap:52px;align-items:center}
.cat-hero h1{font-size:44px;line-height:1.18;color:var(--ink);margin-top:18px}
.cat-hero .lead-text{margin-top:20px;font-size:17.5px;line-height:1.9;color:var(--text-2);max-width:36em}
.cat-hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:30px}
.cat-hero-figure{position:relative;border-radius:var(--r-lg);overflow:hidden;border:1px solid var(--line);box-shadow:var(--sh-lg);background:#fff}
.cat-hero-figure img{width:100%;height:340px;object-fit:cover}
.cat-hero-figure::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(8,35,31,0) 45%,rgba(8,35,31,.30) 100%);
  pointer-events:none;
}
.hero-meta{display:flex;flex-wrap:wrap;gap:10px;align-items:center}

/* ============ 通用板块 ============ */
.section{padding:88px 0}
.section-tight{padding:60px 0}
.section-head{max-width:760px;margin-bottom:44px}
.section-head h2{font-size:30px;line-height:1.3;color:var(--ink)}
.section-head p{margin-top:14px;font-size:16.5px;color:var(--text-2)}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;font-size:13px;font-weight:600;
  color:var(--ink-light);padding:6px 12px;border-radius:var(--r-pill);
  background:rgba(198,242,78,.22);margin-bottom:16px;
}

/* ============ 图文交替流 ============ */
.zigzag-list{display:flex;flex-direction:column}
.zigzag{
  display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);
  gap:56px;align-items:center;
  padding:44px 0;
  border-bottom:1px dashed var(--line);
}
.zigzag:first-child{padding-top:0}
.zigzag:last-child{border-bottom:0;padding-bottom:0}
.zigzag.reverse .zigzag-media{order:2}
.zigzag-media{position:relative}
.zigzag-media img{
  width:100%;aspect-ratio:16/10;object-fit:cover;
  border-radius:var(--r-md);border:1px solid var(--line);box-shadow:var(--sh-md);
  transition:box-shadow .2s ease-out,transform .2s ease-out;
}
.zigzag:hover .zigzag-media img{box-shadow:var(--sh-lg);transform:translateY(-2px)}
.zigzag-index{
  position:absolute;left:16px;top:16px;z-index:2;
  display:grid;place-items:center;width:38px;height:38px;border-radius:12px;
  background:rgba(8,35,31,.78);color:var(--lime);font-size:14px;font-weight:700;
  font-variant-numeric:tabular-nums;-webkit-backdrop-filter:blur(6px);backdrop-filter:blur(6px);
}
.zigzag-body h3{font-size:20px;line-height:1.45;color:var(--ink)}
.zigzag-body p{margin-top:14px;font-size:16.5px;line-height:1.85;color:var(--text-2)}
.zigzag-body .zigzag-tags{display:flex;flex-wrap:wrap;gap:8px;margin-top:16px}
.zigzag-body .link-more{margin-top:18px}

/* ============ 深色提醒带 ============ */
.remind-band{
  position:relative;overflow:hidden;
  background:var(--ink-deep);color:var(--dark-text);
  border-radius:var(--r-lg);
  padding:40px 44px;
  display:grid;grid-template-columns:minmax(0,1fr) auto;gap:28px;align-items:center;
}
.remind-band::before{
  content:"";position:absolute;inset:0;opacity:.16;pointer-events:none;
  background-image:linear-gradient(rgba(255,255,255,.14) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.14) 1px,transparent 1px);
  background-size:44px 44px;
}
.remind-band > *{position:relative}
.remind-band h3{font-size:22px;color:#fff}
.remind-band p{margin-top:10px;font-size:15.5px;color:rgba(234,243,239,.76);max-width:44em}

/* ============ FAQ ============ */
.faq-list{max-width:860px;display:grid;gap:12px}
.faq-item{
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-md);
  overflow:hidden;transition:border-color .18s ease-out,box-shadow .18s ease-out;
}
.faq-item:hover{border-color:rgba(14,58,51,.26)}
.faq-item[open]{border-color:rgba(14,58,51,.32);box-shadow:var(--sh-md)}
.faq-item summary{
  list-style:none;cursor:pointer;
  display:flex;align-items:center;justify-content:space-between;gap:18px;
  min-height:62px;padding:18px 24px;
  font-size:17px;font-weight:600;color:var(--ink);line-height:1.55;
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-icon{flex:0 0 auto;width:20px;height:20px;color:var(--ink-light);transition:transform .2s ease-out}
.faq-item[open] .faq-icon{transform:rotate(180deg)}
.faq-body{padding:0 24px 22px;font-size:15.5px;line-height:1.85;color:var(--text-2)}

/* ============ 底部 CTA ============ */
.cta-wrap{padding:16px 0 92px}
.cta-card{
  position:relative;overflow:hidden;
  background:var(--ink);color:var(--dark-text);
  border-radius:var(--r-lg);padding:52px;
  display:grid;grid-template-columns:minmax(0,1fr) auto;gap:32px;align-items:center;
  box-shadow:var(--sh-lg);
}
.cta-card::after{
  content:"";position:absolute;right:-90px;top:-90px;width:320px;height:320px;border-radius:50%;
  background:radial-gradient(circle,rgba(198,242,78,.30),transparent 68%);
  pointer-events:none;
}
.cta-card > *{position:relative}
.cta-card h2{font-size:28px;color:#fff;line-height:1.35}
.cta-card p{margin-top:14px;font-size:16px;color:rgba(234,243,239,.78);max-width:40em}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px}

/* ============ 页脚 ============ */
.site-footer{background:var(--ink-deep);color:var(--dark-text);padding:72px 0 28px}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.1fr;gap:40px}
.footer-brand{display:flex;align-items:center;gap:10px;font-size:18px;font-weight:700;color:#fff}
.site-footer .brand-mark{background:var(--lime);color:var(--ink-deep)}
.footer-desc{margin-top:16px;font-size:14.5px;line-height:1.8;color:rgba(234,243,239,.72);max-width:330px}
.footer-col h4{font-size:15px;color:#fff;margin-bottom:16px;font-weight:600}
.footer-col ul{display:grid;gap:11px;font-size:14.5px}
.footer-col a{color:rgba(234,243,239,.72);transition:color .16s ease-out}
.footer-col a:hover{color:var(--lime)}
.footer-contact{font-size:14.5px;line-height:1.9;color:rgba(234,243,239,.72)}
.footer-contact a{color:var(--lime);border-bottom:1px solid rgba(198,242,78,.45)}
.footer-bottom{
  margin-top:52px;padding-top:20px;border-top:1px solid var(--line-dark);
  display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:13.5px;color:rgba(234,243,239,.62);
}
.footer-bottom a{color:rgba(234,243,239,.72);transition:color .16s ease-out}
.footer-bottom a:hover{color:var(--lime)}

/* ============ 线索弹层 ============ */
.lead-modal{position:fixed;inset:0;z-index:100;display:none}
.lead-modal.is-open{display:block}
.lead-backdrop{position:absolute;inset:0;background:rgba(8,35,31,.62);-webkit-backdrop-filter:blur(4px);backdrop-filter:blur(4px)}
.lead-card{
  position:relative;width:calc(100% - 40px);max-width:540px;margin:7vh auto;
  background:#fff;border-radius:var(--r-lg);padding:30px;box-shadow:var(--sh-lg);
  max-height:88vh;overflow:auto;
}
.lead-card h3{font-size:20px;color:var(--ink)}
.lead-card .lead-sub{margin-top:8px;font-size:14.5px;color:var(--text-2)}
.lead-close{
  position:absolute;right:16px;top:16px;width:38px;height:38px;border-radius:var(--r-pill);
  display:grid;place-items:center;border:1px solid var(--line);color:var(--text-2);background:#fff;
  transition:background .16s ease-out,color .16s ease-out;
}
.lead-close:hover{background:var(--sand);color:var(--ink)}
.lead-form{display:grid;gap:16px;margin-top:22px}
.field{display:grid;gap:8px}
.field label{font-size:13px;color:var(--text-3)}
.form-control{
  width:100%;height:50px;padding:0 14px;font-size:15px;color:var(--text);
  background:#fff;border:1px solid var(--line);border-radius:12px;
  transition:border-color .16s ease-out,box-shadow .16s ease-out;
}
textarea.form-control{height:auto;min-height:96px;padding:12px 14px;line-height:1.7;resize:vertical}
.form-control:focus{outline:none;border-color:var(--ink);box-shadow:0 0 0 3px rgba(198,242,78,.55)}
.form-control.is-error{border-color:#C63C2E}
.field-error{font-size:12.5px;color:#C63C2E}
.agree{display:flex;align-items:flex-start;gap:10px;font-size:13px;color:var(--text-2)}
.agree input{width:18px;height:18px;margin-top:3px;accent-color:var(--ink)}
.agree a{color:var(--ink);border-bottom:1px solid var(--lime)}
.form-note{font-size:12.5px;color:var(--text-3)}
.form-success{
  display:none;margin-top:8px;padding:12px 14px;border-radius:12px;
  background:rgba(47,158,107,.10);border:1px solid rgba(47,158,107,.32);
  color:#1F6E4B;font-size:14px;
}
.form-success.is-visible{display:block}

/* ============ 响应式 ============ */
@media (max-width:1024px){
  .nav-links{display:none}
  .nav-toggle{display:inline-flex}
  .cat-hero{padding:32px 0 60px}
  .cat-hero-grid{grid-template-columns:1fr;gap:34px}
  .cat-hero-figure img{height:280px}
  .zigzag{grid-template-columns:1fr;gap:24px;padding:36px 0}
  .zigzag.reverse .zigzag-media{order:0}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
  .cta-card{grid-template-columns:1fr;padding:40px}
  .remind-band{grid-template-columns:1fr;padding:34px}
  .section{padding:64px 0}
}
@media (max-width:768px){
  body{font-size:16px;line-height:1.8}
  .container{padding:0 20px}
  .nav-shell{padding:0 16px}
  .cat-hero h1,.section-head h2{font-size:30px}
  .cat-hero h1{font-size:28px;line-height:1.28}
  .cat-hero-figure img{height:230px}
  .brand-text{font-size:16px}
  .section{padding:56px 0}
  .section-head{margin-bottom:32px}
  .zigzag-body h3{font-size:18px}
  .cta-card{padding:30px;border-radius:var(--r-md)}
  .cta-card h2{font-size:23px}
  .remind-band{padding:28px;border-radius:var(--r-md)}
  .remind-band h3{font-size:19px}
  .faq-item summary{padding:16px 18px;min-height:56px;font-size:16px}
  .faq-body{padding:0 18px 18px}
  .footer-grid{grid-template-columns:1fr;gap:30px}
  .footer-bottom{flex-direction:column;gap:10px}
  .cat-hero-actions .btn{width:100%}
}
@media (max-width:640px){
  .cat-hero h1{font-size:26px}
  .lead-card{width:100%;max-width:100%;margin:0;position:absolute;left:0;right:0;bottom:0;top:auto;border-radius:20px 20px 0 0;max-height:88vh}
  .cta-actions .btn{width:100%}
}
@media (prefers-reduced-motion:reduce){
  *{transition:none!important;animation:none!important;scroll-behavior:auto!important}
}

/* roulang page: category3 */
:root{
  --green:#0E3A33;
  --green-deep:#08231F;
  --green-mid:#17564C;
  --lime:#C6F24E;
  --orange:#E8552F;
  --sand:#F5F3EE;
  --card:#FFFFFF;
  --ink:#1B2422;
  --muted:#5A6663;
  --weak:#8A948F;
  --line:#E2E0D9;
  --line-dark:rgba(255,255,255,.10);
  --ok:#2F9E6B;
  --warn:#D97706;
  --err:#C63C2E;
  --r-sm:10px;
  --r-md:14px;
  --r-lg:20px;
  --sh-sm:0 1px 2px rgba(14,58,51,.06);
  --sh-md:0 10px 28px -14px rgba(14,58,51,.20);
  --sh-lg:0 28px 64px -28px rgba(14,58,51,.30);
  --t:200ms ease-out;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:17px;
  line-height:1.8;
  color:var(--ink);
  background:var(--sand);
  font-variant-numeric:tabular-nums;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;}
a{color:inherit;text-decoration:none;transition:color var(--t),border-color var(--t),background-color var(--t);}
a:hover{color:var(--green-mid);}
h1,h2,h3,h4{margin:0;font-weight:700;letter-spacing:0;color:var(--green);}
p{margin:0 0 20px;}
p:last-child{margin-bottom:0;}
ul{margin:0;padding:0;list-style:none;}
button{font-family:inherit;cursor:pointer;border:0;background:none;color:inherit;}
input,select,textarea{font-family:inherit;font-size:15px;}
:focus-visible{outline:2px solid var(--lime);outline-offset:2px;border-radius:6px;}

.container{width:100%;max-width:1232px;margin:0 auto;padding:0 32px;}
.section{padding:88px 0;}
.section-dark{background:var(--green-deep);color:#EAF3EF;padding:72px 0;}
.section-dark h2,.section-dark h3{color:#fff;}
.section-tight{padding:64px 0;}

/* ---------- 悬浮胶囊导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:80;
  padding:14px 0 10px;
  transition:padding var(--t);
}
.nav-shell{
  position:relative;
  width:100%;max-width:1200px;margin:0 auto;padding:0 20px;
}
.site-nav{
  display:flex;align-items:center;gap:22px;
  height:62px;padding:0 12px 0 18px;
  border:1px solid rgba(226,224,217,.9);
  border-radius:999px;
  background:rgba(255,255,255,.72);
  -webkit-backdrop-filter:blur(14px);
  backdrop-filter:blur(14px);
  box-shadow:var(--sh-sm);
  transition:background var(--t),box-shadow var(--t),border-color var(--t),height var(--t);
}
.site-header.is-scrolled .site-nav{
  background:rgba(245,243,238,.94);
  border-color:var(--line);
  box-shadow:var(--sh-md);
}
.brand{display:flex;align-items:center;gap:10px;flex:0 0 auto;}
.brand-mark{
  width:32px;height:32px;border-radius:10px;
  display:grid;place-items:center;
  background:var(--green);color:var(--lime);
  font-weight:700;font-size:16px;letter-spacing:0;
}
.brand-text{font-weight:700;font-size:16px;color:var(--green);white-space:nowrap;}
.nav-links{display:flex;align-items:center;gap:4px;margin-left:auto;}
.nav-link{
  position:relative;display:inline-block;
  padding:8px 12px;border-radius:999px;
  font-size:15px;color:var(--muted);
}
.nav-link:hover{color:var(--green);background:rgba(198,242,78,.18);}
.nav-link.is-active{color:var(--green);font-weight:600;}
.nav-link.is-active::after{
  content:"";position:absolute;left:12px;right:12px;bottom:2px;height:2px;border-radius:2px;background:var(--lime);
}
.nav-actions{display:flex;align-items:center;gap:8px;flex:0 0 auto;}
.nav-toggle{
  display:none;width:44px;height:44px;border-radius:999px;
  align-items:center;justify-content:center;color:var(--green);
  border:1px solid var(--line);background:#fff;
}
.nav-toggle svg{width:22px;height:22px;}
.mobile-drawer{
  display:none;
  position:absolute;left:20px;right:20px;top:74px;
  background:var(--sand);
  border:1px solid var(--line);
  border-radius:20px;
  padding:10px;
  box-shadow:var(--sh-lg);
}
.mobile-drawer.is-open{display:block;}
.mobile-drawer a{
  display:flex;align-items:center;height:48px;padding:0 14px;border-radius:12px;
  font-size:16px;color:var(--ink);
}
.mobile-drawer a:hover{background:#fff;}
.mobile-drawer a.is-active{color:var(--green);font-weight:600;background:#fff;}
.drawer-cta{width:100%;margin-top:8px;}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:48px;padding:14px 26px;
  border-radius:999px;
  font-size:15px;font-weight:600;line-height:1;
  transition:transform var(--t),box-shadow var(--t),background-color var(--t),color var(--t),border-color var(--t);
  cursor:pointer;
}
.btn-sm{min-height:44px;padding:11px 20px;font-size:15px;}
.btn-primary{background:var(--lime);color:var(--green);box-shadow:var(--sh-sm);}
.btn-primary:hover{background:#d3f96b;color:var(--green);transform:translateY(-1px);box-shadow:var(--sh-md);}
.btn-primary:active{transform:translateY(0);box-shadow:var(--sh-sm);}
.btn-ghost{background:transparent;color:var(--green);border:1.5px solid var(--green);}
.btn-ghost:hover{background:rgba(14,58,51,.06);color:var(--green);transform:translateY(-1px);}
.btn-ghost:active{transform:translateY(0);}
.btn-light{background:#fff;color:var(--green);border:1px solid var(--line);}
.btn-light:hover{border-color:var(--green);color:var(--green);transform:translateY(-1px);box-shadow:var(--sh-md);}
.btn:disabled,.btn.is-disabled{opacity:.45;cursor:not-allowed;transform:none;box-shadow:none;}
.link-arrow{
  display:inline-flex;align-items:center;gap:6px;
  font-size:15px;font-weight:600;color:var(--green);
  border-bottom:2px solid transparent;
}
.link-arrow:hover{border-bottom-color:var(--lime);color:var(--green);}
.link-arrow svg{width:18px;height:18px;transition:transform var(--t);}
.link-arrow:hover svg{transform:translateX(3px);}

/* ---------- 通用元素 ---------- */
.badge{
  display:inline-flex;align-items:center;gap:6px;
  padding:5px 12px;border-radius:999px;
  font-size:13px;font-weight:600;line-height:1.5;
  background:rgba(14,58,51,.08);color:var(--green);
}
.badge-lime{background:rgba(198,242,78,.35);border:1px solid rgba(14,58,51,.16);color:var(--green);}
.badge-outline{background:#fff;border:1px solid var(--line);color:var(--muted);font-weight:500;}

/* ---------- 面包屑 ---------- */
.breadcrumb{
  display:flex;flex-wrap:wrap;align-items:center;gap:8px;
  font-size:14px;color:var(--weak);padding:26px 0 0;
}
.breadcrumb a{color:var(--weak);}
.breadcrumb a:hover{color:var(--green);}
.breadcrumb .sep{color:var(--line);}
.breadcrumb .current{color:var(--green);font-weight:600;}

/* ---------- 导语区 ---------- */
.lead-hero{
  position:relative;overflow:hidden;
  padding:34px 0 76px;
}
.lead-hero::before{
  content:"";position:absolute;inset:0;
  background-image:linear-gradient(rgba(14,58,51,.05) 1px,transparent 1px),
                   linear-gradient(90deg,rgba(14,58,51,.05) 1px,transparent 1px);
  background-size:56px 56px;
  -webkit-mask-image:radial-gradient(ellipse at 50% 30%,#000 12%,transparent 72%);
  mask-image:radial-gradient(ellipse at 50% 30%,#000 12%,transparent 72%);
  pointer-events:none;
}
.lead-inner{position:relative;max-width:720px;margin:0 auto;text-align:center;}
.lead-inner h1{
  font-size:42px;line-height:1.18;margin:18px 0 20px;
}
.lead-inner p{font-size:17px;line-height:1.85;color:var(--muted);}
.lead-meta{
  display:flex;flex-wrap:wrap;justify-content:center;gap:10px;margin-top:26px;
}

/* ---------- 时间轴 ---------- */
.timeline-wrap{max-width:920px;margin:0 auto;}
.timeline{position:relative;margin-top:12px;}
.timeline::before{
  content:"";position:absolute;left:17px;top:10px;bottom:10px;width:2px;
  background:linear-gradient(180deg,var(--green-mid) 0%,rgba(23,86,76,.35) 60%,rgba(23,86,76,.10) 100%);
  border-radius:2px;
}
.tl-step{position:relative;padding:0 0 32px 62px;}
.tl-step:last-child{padding-bottom:0;}
.tl-node{
  position:absolute;left:0;top:6px;
  width:36px;height:36px;border-radius:50%;
  display:grid;place-items:center;
  background:#fff;border:2px solid var(--green-mid);
  color:var(--green);font-size:13px;font-weight:700;
  box-shadow:var(--sh-sm);
  transition:transform var(--t),background-color var(--t),border-color var(--t);
}
.tl-step.is-current .tl-node{
  background:var(--lime);border-color:var(--lime);
  transform:scale(1.14);
  box-shadow:0 8px 20px -10px rgba(14,58,51,.55);
}
.tl-card{
  background:var(--card);border:1px solid var(--line);border-radius:16px;
  padding:24px;box-shadow:var(--sh-md);
  transition:border-color var(--t),transform var(--t),box-shadow var(--t);
}
.tl-card:hover{border-color:rgba(14,58,51,.30);transform:translateY(-2px);box-shadow:var(--sh-lg);}
.tl-card h3{font-size:19px;line-height:1.45;margin:12px 0 10px;}
.tl-card p{font-size:16px;color:var(--muted);line-height:1.8;margin-bottom:14px;}
.tl-list{display:grid;gap:8px;margin:14px 0 0;}
.tl-list li{
  position:relative;padding-left:20px;font-size:15px;color:var(--muted);line-height:1.75;
}
.tl-list li::before{
  content:"";position:absolute;left:2px;top:11px;width:6px;height:6px;border-radius:50%;background:var(--lime);
}
.tl-figure{margin:18px 0 0;border-radius:12px;overflow:hidden;border:1px solid var(--line);}
.tl-figure img{width:100%;height:auto;aspect-ratio:16/9;object-fit:cover;}
.tl-figure figcaption{font-size:13px;color:var(--weak);padding:10px 14px;background:#FBFAF7;line-height:1.65;}

/* ---------- 数据条 ---------- */
.stat-strip{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;}
.stat-card{
  background:#fff;border:1px solid var(--line);border-radius:16px;
  padding:26px 24px;box-shadow:var(--sh-sm);
  transition:transform var(--t),box-shadow var(--t),border-color var(--t);
}
.stat-card:hover{transform:translateY(-2px);box-shadow:var(--sh-md);border-color:rgba(14,58,51,.22);}
.stat-num{
  font-size:40px;font-weight:700;line-height:1.1;color:var(--green);
  font-variant-numeric:tabular-nums;
}
.stat-num span{font-size:15px;font-weight:600;margin-left:4px;color:var(--green-mid);}
.stat-card h3{font-size:17px;margin:12px 0 6px;line-height:1.45;}
.stat-card p{font-size:14px;line-height:1.7;color:var(--muted);margin:0;}

/* ---------- 提示条 ---------- */
.notice{
  display:flex;gap:14px;align-items:flex-start;
  background:#fff;border:1px solid var(--line);border-left:3px solid var(--lime);
  border-radius:14px;padding:20px 22px;box-shadow:var(--sh-sm);
}
.notice svg{flex:0 0 auto;width:22px;height:22px;color:var(--green);margin-top:2px;}
.notice p{font-size:15px;line-height:1.8;color:var(--muted);margin:0;}
.notice strong{color:var(--green);}

/* ---------- FAQ ---------- */
.faq-list{max-width:860px;margin:0 auto;display:grid;gap:14px;}
.faq-item{
  background:#fff;border:1px solid var(--line);border-radius:14px;
  box-shadow:var(--sh-sm);overflow:hidden;
  transition:border-color var(--t),box-shadow var(--t);
}
.faq-item[open]{border-color:rgba(14,58,51,.24);box-shadow:var(--sh-md);}
.faq-item summary{
  list-style:none;cursor:pointer;
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  min-height:64px;padding:18px 22px;
  font-size:17px;font-weight:600;color:var(--green);line-height:1.5;
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary svg{
  flex:0 0 auto;width:20px;height:20px;color:var(--green-mid);
  transition:transform var(--t);
}
.faq-item[open] summary svg{transform:rotate(180deg);}
.faq-body{padding:0 22px 22px;font-size:15px;line-height:1.85;color:var(--muted);}
.faq-body p{margin:0 0 12px;}
.faq-body p:last-child{margin-bottom:0;}

/* ---------- CTA ---------- */
.cta-band{
  position:relative;overflow:hidden;
  background:var(--green);color:#EAF3EF;
  border-radius:20px;
  padding:52px 48px;
  display:flex;align-items:center;justify-content:space-between;gap:32px;
  box-shadow:var(--sh-lg);
}
.cta-band::after{
  content:"";position:absolute;right:-60px;top:-60px;width:260px;height:260px;border-radius:50%;
  background:radial-gradient(circle,rgba(198,242,78,.30),transparent 68%);
  pointer-events:none;
}
.cta-band h2{color:#fff;font-size:28px;line-height:1.3;margin-bottom:10px;}
.cta-band p{color:rgba(234,243,239,.82);font-size:16px;margin:0;max-width:520px;}
.cta-actions{display:flex;gap:12px;flex-wrap:wrap;flex:0 0 auto;position:relative;z-index:1;}
.cta-band .btn-light{background:#fff;border-color:#fff;}

/* ---------- 返回链 ---------- */
.back-row{
  display:flex;flex-wrap:wrap;align-items:center;gap:10px;
  font-size:14px;color:var(--weak);
}
.back-row a{color:var(--green);font-weight:600;}
.back-row a:hover{border-bottom:2px solid var(--lime);}
.back-row .sep{color:var(--line);}

/* ---------- 表单（弹层） ---------- */
.lead-overlay{
  position:fixed;inset:0;z-index:200;
  background:rgba(8,35,31,.62);
  -webkit-backdrop-filter:blur(3px);
  backdrop-filter:blur(3px);
  display:none;align-items:center;justify-content:center;padding:24px;
}
.lead-overlay.is-open{display:flex;}
.lead-modal{
  width:100%;max-width:540px;max-height:88vh;overflow:auto;
  background:var(--sand);border-radius:20px;padding:30px 28px;
  box-shadow:var(--sh-lg);
}
.lead-modal h2{font-size:22px;margin-bottom:8px;line-height:1.35;}
.lead-modal .lead-sub{font-size:15px;color:var(--muted);margin-bottom:22px;}
.field{margin-bottom:16px;}
.field label{display:block;font-size:13px;color:var(--weak);margin-bottom:6px;}
.field input,.field select,.field textarea{
  width:100%;min-height:50px;padding:12px 14px;
  background:#fff;border:1px solid var(--line);border-radius:12px;
  color:var(--ink);outline:none;
  transition:border-color var(--t),box-shadow var(--t);
}
.field textarea{min-height:96px;resize:vertical;line-height:1.7;}
.field input:focus,.field select:focus,.field textarea:focus{
  border-color:var(--green);box-shadow:0 0 0 3px rgba(198,242,78,.55);
}
.field.has-error input{border-color:var(--err);}
.field .err-text{display:none;font-size:12px;color:var(--err);margin-top:6px;}
.field.has-error .err-text{display:block;}
.consent{display:flex;gap:10px;align-items:flex-start;font-size:13px;color:var(--muted);line-height:1.65;margin:6px 0 20px;}
.consent input{width:18px;height:18px;margin-top:2px;flex:0 0 auto;accent-color:var(--green);}
.consent a{color:var(--green);text-decoration:underline;}
.modal-close{
  position:absolute;top:16px;right:16px;width:40px;height:40px;border-radius:999px;
  display:grid;place-items:center;background:#fff;border:1px solid var(--line);color:var(--green);
}
.lead-modal-inner{position:relative;}
.form-actions{display:flex;gap:12px;flex-wrap:wrap;align-items:center;}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--green-deep);color:#EAF3EF;padding:72px 0 28px;margin-top:0;}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:40px;}
.footer-brand{display:flex;align-items:center;gap:10px;font-size:17px;font-weight:700;color:#fff;margin-bottom:16px;}
.footer-brand .brand-mark{background:rgba(198,242,78,.16);color:var(--lime);}
.footer-desc{font-size:14px;line-height:1.8;color:rgba(234,243,239,.72);max-width:300px;}
.footer-col h4{font-size:15px;color:#fff;margin-bottom:16px;font-weight:600;}
.footer-col ul{display:grid;gap:10px;}
.footer-col a{font-size:14px;color:rgba(234,243,239,.72);}
.footer-col a:hover{color:var(--lime);}
.footer-contact{font-size:14px;line-height:2;color:rgba(234,243,239,.72);}
.footer-contact a{color:var(--lime);}
.footer-bottom{
  margin-top:48px;padding-top:22px;
  border-top:1px solid var(--line-dark);
  display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;
  font-size:13px;color:rgba(234,243,239,.60);
}
.footer-bottom a{color:rgba(234,243,239,.72);}
.footer-bottom a:hover{color:var(--lime);}

/* ---------- 响应式 ---------- */
@media (max-width:1024px){
  .container{padding:0 24px;}
  .nav-links{display:none;}
  .nav-toggle{display:flex;}
  .site-nav{gap:12px;}
  .brand{margin-right:auto;}
  .section{padding:68px 0;}
  .lead-inner h1{font-size:34px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
  .cta-band{padding:40px 32px;}
}
@media (max-width:768px){
  body{font-size:16px;}
  .container{padding:0 20px;}
  .section{padding:56px 0;}
  .section-dark{padding:52px 0;}
  .lead-hero{padding:20px 0 56px;}
  .lead-inner h1{font-size:29px;line-height:1.28;}
  .lead-inner p{font-size:16px;}
  .tl-step{padding-left:52px;}
  .timeline::before{left:14px;}
  .tl-node{width:30px;height:30px;font-size:12px;}
  .tl-card{padding:20px;}
  .stat-strip{grid-template-columns:1fr;}
  .stat-num{font-size:34px;}
  .cta-band{flex-direction:column;align-items:flex-start;padding:32px 24px;border-radius:16px;}
  .cta-band h2{font-size:23px;}
  .footer-grid{grid-template-columns:1fr;gap:28px;}
  .faq-item summary{font-size:16px;padding:16px 18px;}
  .faq-body{padding:0 18px 18px;}
  .lead-modal{padding:24px 20px;border-radius:20px 20px 0 0;max-height:88vh;align-self:flex-end;}
  .lead-overlay{padding:0;align-items:flex-end;}
}
@media (max-width:520px){
  .lead-inner h1{font-size:27px;}
  .btn{width:100%;}
  .nav-actions .btn-sm{width:auto;}
  .cta-actions{width:100%;}
  .cta-actions .btn{width:100%;}
  .breadcrumb{font-size:13px;}
}
@media (prefers-reduced-motion:reduce){
  *{transition:none !important;animation:none !important;scroll-behavior:auto !important;}
}

/* roulang page: category2 */
:root{
    --green-900:#08231F;
    --green-800:#0E3A33;
    --green-600:#17564C;
    --lime:#C6F24E;
    --lime-soft:rgba(198,242,78,.22);
    --orange:#E8552F;
    --bg:#F5F3EE;
    --card:#FFFFFF;
    --ink:#1B2422;
    --ink-2:#5A6663;
    --ink-3:#8A948F;
    --line:#E2E0D9;
    --line-dark:rgba(255,255,255,.10);
    --ok:#2F9E6B;
    --warn:#D97706;
    --err:#C63C2E;
    --r-sm:10px;
    --r-md:16px;
    --r-lg:20px;
    --r-pill:999px;
    --sh-sm:0 1px 2px rgba(14,58,51,.06);
    --sh-md:0 10px 28px -14px rgba(14,58,51,.20);
    --sh-lg:0 28px 64px -28px rgba(14,58,51,.30);
    --container:1200px;
    --pad-x:32px;
    --sec-y:92px;
  }
  *,*::before,*::after{box-sizing:border-box;}
  html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
  body{
    margin:0;
    background:var(--bg);
    color:var(--ink);
    font-family:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
    font-size:17px;
    line-height:1.85;
    font-weight:400;
    letter-spacing:0;
    -webkit-font-smoothing:antialiased;
  }
  img{max-width:100%;display:block;border-radius:12px;}
  a{color:var(--green-600);text-decoration:none;transition:color .18s ease-out;background-color:transparent;}
  a:hover{color:var(--green-800);}
  button{font-family:inherit;font-size:inherit;cursor:pointer;}
  input,select,textarea{font-family:inherit;font-size:16px;color:var(--ink);}
  h1,h2,h3,h4,p,ul,ol{margin:0;}
  ul,ol{padding:0;list-style:none;}
  :focus-visible{outline:2px solid var(--lime);outline-offset:2px;border-radius:6px;}
  .num{font-variant-numeric:tabular-nums;}

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

  /* ---------- 导航 ---------- */
  .site-header{
    position:sticky;
    top:14px;
    z-index:80;
    padding:0 0 6px;
  }
  .nav-shell{
    width:100%;
    max-width:var(--container);
    margin:0 auto;
    padding:0 var(--pad-x);
  }
  .site-nav{
    display:flex;
    align-items:center;
    gap:14px;
    height:62px;
    padding:0 12px 0 16px;
    border-radius:var(--r-pill);
    background:rgba(255,255,255,.72);
    backdrop-filter:blur(14px);
    -webkit-backdrop-filter:blur(14px);
    border:1px solid var(--line);
    box-shadow:var(--sh-sm);
    transition:background-color .2s ease-out,box-shadow .2s ease-out,border-color .2s ease-out;
  }
  .site-header.is-scrolled .site-nav{
    background:rgba(245,243,238,.94);
    box-shadow:var(--sh-md);
  }
  .brand{
    display:inline-flex;
    align-items:center;
    gap:10px;
    flex-shrink:0;
    color:var(--green-800);
    font-weight:700;
    font-size:16px;
    letter-spacing:.01em;
  }
  .brand:hover{color:var(--green-800);}
  .brand-mark{
    width:30px;height:30px;
    display:inline-flex;align-items:center;justify-content:center;
    border-radius:9px;
    background:var(--green-800);
    color:var(--lime);
    font-size:15px;
    font-weight:700;
    flex-shrink:0;
  }
  .brand-text{white-space:nowrap;}
  .nav-links{
    display:flex;
    align-items:center;
    gap:4px;
    margin-left:8px;
    flex:1 1 auto;
  }
  .nav-link{
    position:relative;
    display:inline-flex;
    align-items:center;
    height:40px;
    padding:0 14px;
    border-radius:var(--r-pill);
    color:var(--ink-2);
    font-size:15px;
    font-weight:500;
    white-space:nowrap;
    transition:color .18s ease-out,background-color .18s ease-out;
  }
  .nav-link::after{
    content:"";
    position:absolute;
    left:14px;right:14px;bottom:6px;
    height:2px;
    border-radius:2px;
    background:var(--lime);
    transform:scaleX(0);
    transform-origin:left center;
    transition:transform .2s ease-out;
  }
  .nav-link:hover{color:var(--green-800);background:rgba(14,58,51,.05);}
  .nav-link:hover::after{transform:scaleX(1);}
  .nav-link.is-active{color:var(--green-800);font-weight:600;}
  .nav-link.is-active::after{transform:scaleX(1);}
  .nav-actions{
    display:flex;
    align-items:center;
    gap:10px;
    flex-shrink:0;
    margin-left:auto;
  }
  .nav-toggle{
    display:none;
    width:44px;height:44px;
    align-items:center;justify-content:center;
    border-radius:var(--r-pill);
    border:1px solid var(--line);
    background:var(--card);
    color:var(--green-800);
  }
  .nav-toggle svg{width:22px;height:22px;}
  .mobile-drawer{display:none;}

  /* ---------- 按钮 ---------- */
  .btn{
    display:inline-flex;
    align-items:center;
    justify-content:center;
    gap:8px;
    min-height:48px;
    padding:14px 26px;
    border-radius:var(--r-pill);
    font-size:16px;
    font-weight:600;
    letter-spacing:.01em;
    border:1.5px solid transparent;
    transition:transform .18s ease-out,box-shadow .18s ease-out,background-color .18s ease-out,color .18s ease-out,border-color .18s ease-out;
    text-align:center;
    line-height:1.2;
  }
  .btn-primary{
    background:var(--lime);
    color:var(--green-900);
    box-shadow:var(--sh-sm);
  }
  .btn-primary:hover{
    background:#d2f76b;
    color:var(--green-900);
    transform:translateY(-1px);
    box-shadow:var(--sh-md);
  }
  .btn-primary:active{transform:translateY(0);box-shadow:var(--sh-sm);}
  .btn-ghost{
    background:transparent;
    color:var(--green-800);
    border-color:var(--green-800);
  }
  .btn-ghost:hover{
    background:rgba(14,58,51,.06);
    color:var(--green-800);
    transform:translateY(-1px);
    box-shadow:var(--sh-sm);
  }
  .btn-sm{min-height:42px;padding:10px 20px;font-size:15px;}
  .btn:disabled{opacity:.45;pointer-events:none;}
  .text-link{
    display:inline-flex;
    align-items:center;
    gap:6px;
    font-size:15px;
    font-weight:600;
    color:var(--green-800);
    border-bottom:2px solid transparent;
    padding-bottom:2px;
    transition:border-color .18s ease-out,color .18s ease-out;
  }
  .text-link:hover{border-color:var(--lime);color:var(--green-800);}
  .text-link svg{width:18px;height:18px;}

  /* ---------- 徽章 / 标签 ---------- */
  .badge{
    display:inline-flex;
    align-items:center;
    gap:6px;
    padding:5px 12px;
    border-radius:var(--r-pill);
    font-size:13px;
    font-weight:600;
    letter-spacing:.01em;
    background:rgba(14,58,51,.08);
    color:var(--green-800);
    white-space:nowrap;
  }
  .badge-lime{
    background:rgba(198,242,78,.28);
    border:1px solid rgba(14,58,51,.35);
    color:var(--green-800);
  }
  .badge-outline{
    background:transparent;
    border:1px solid var(--line);
    color:var(--ink-2);
    font-weight:500;
  }
  .badge-warn{background:rgba(232,85,47,.10);color:#B23E1D;}
  .tag{
    display:inline-flex;
    align-items:center;
    justify-content:center;
    min-width:58px;
    padding:4px 10px;
    border-radius:var(--r-pill);
    font-size:13px;
    font-weight:600;
    background:rgba(14,58,51,.08);
    color:var(--green-600);
    white-space:nowrap;
  }
  .tag-warn{background:rgba(232,85,47,.10);color:#B23E1D;}
  .tag-ok{background:rgba(47,158,107,.12);color:#1F7B51;}

  /* ---------- 通用板块 ---------- */
  .section{padding:var(--sec-y) 0;}
  .section-tight{padding:64px 0;}
  .section-head{
    display:flex;
    align-items:flex-end;
    justify-content:space-between;
    gap:24px;
    margin-bottom:36px;
  }
  .section-head h2{
    font-size:29px;
    line-height:1.3;
    font-weight:700;
    color:var(--green-900);
    letter-spacing:0;
  }
  .section-head p{
    margin-top:10px;
    font-size:16px;
    color:var(--ink-2);
    max-width:640px;
  }
  .eyebrow{
    display:inline-block;
    font-size:13px;
    font-weight:700;
    letter-spacing:.08em;
    color:var(--green-600);
    margin-bottom:12px;
    text-transform:uppercase;
  }

  /* ---------- 面包屑 ---------- */
  .breadcrumb{
    display:flex;
    flex-wrap:wrap;
    align-items:center;
    gap:8px;
    font-size:14px;
    color:var(--ink-3);
    padding-top:26px;
  }
  .breadcrumb a{color:var(--ink-3);}
  .breadcrumb a:hover{color:var(--green-600);}
  .breadcrumb .sep{color:#C4C2BA;}
  .breadcrumb .current{color:var(--green-800);font-weight:600;}

  /* ---------- 导语区 ---------- */
  .intro{
    padding:34px 0 var(--sec-y);
  }
  .intro-grid{
    display:grid;
    grid-template-columns:minmax(0,1.55fr) minmax(0,1fr);
    gap:48px;
    align-items:start;
  }
  .intro h1{
    font-size:42px;
    line-height:1.18;
    font-weight:700;
    color:var(--green-900);
    letter-spacing:0;
    margin:16px 0 20px;
  }
  .intro-lead{
    font-size:17px;
    line-height:1.85;
    color:var(--ink-2);
    max-width:640px;
  }
  .intro-figure{
    margin-top:30px;
    border-radius:var(--r-md);
    overflow:hidden;
    border:1px solid var(--line);
    background:var(--card);
    box-shadow:var(--sh-md);
  }
  .intro-figure img{width:100%;height:100%;object-fit:cover;border-radius:0;aspect-ratio:16/9;}
  .stat-panel{
    background:var(--card);
    border:1px solid var(--line);
    border-radius:var(--r-lg);
    padding:26px;
    box-shadow:var(--sh-md);
  }
  .stat-panel h3{
    font-size:17px;
    font-weight:700;
    color:var(--green-900);
    margin-bottom:6px;
  }
  .stat-panel > p{
    font-size:14px;
    color:var(--ink-3);
    line-height:1.7;
    margin-bottom:18px;
  }
  .stat-row{
    display:flex;
    align-items:baseline;
    justify-content:space-between;
    gap:16px;
    padding:16px 0;
    border-top:1px solid var(--line);
  }
  .stat-row:first-of-type{border-top:1px solid var(--line);}
  .stat-value{
    font-size:34px;
    font-weight:700;
    color:var(--green-800);
    line-height:1.1;
    font-variant-numeric:tabular-nums;
  }
  .stat-value span{font-size:14px;font-weight:600;color:var(--ink-2);margin-left:4px;}
  .stat-label{
    font-size:14px;
    color:var(--ink-2);
    text-align:right;
    max-width:180px;
    line-height:1.6;
  }

  /* ---------- 对照清单 ---------- */
  .checklist-wrap{
    background:var(--card);
    border:1px solid var(--line);
    border-radius:var(--r-lg);
    box-shadow:var(--sh-md);
    overflow:hidden;
  }
  .check-group + .check-group{border-top:1px solid var(--line);}
  .check-group-head{
    display:flex;
    align-items:center;
    gap:14px;
    padding:22px 28px;
    background:rgba(245,243,238,.6);
    border-bottom:1px solid var(--line);
  }
  .check-index{
    width:34px;height:34px;
    display:inline-flex;align-items:center;justify-content:center;
    border-radius:10px;
    background:var(--green-800);
    color:var(--lime);
    font-size:14px;
    font-weight:700;
    font-variant-numeric:tabular-nums;
    flex-shrink:0;
  }
  .check-group-head h3{
    font-size:19px;
    font-weight:700;
    color:var(--green-900);
    line-height:1.45;
  }
  .check-group-head .group-note{
    margin-left:auto;
    font-size:13px;
    color:var(--ink-3);
  }
  .check-row{
    display:grid;
    grid-template-columns:minmax(0,220px) minmax(0,1fr) auto;
    gap:24px;
    align-items:center;
    padding:20px 28px;
    border-top:1px solid var(--line);
    transition:background-color .18s ease-out;
  }
  .check-group .check-row:first-of-type{border-top:none;}
  .check-row:hover{background:rgba(245,243,238,.85);}
  .check-name{
    font-size:17px;
    font-weight:600;
    color:var(--green-900);
    line-height:1.5;
  }
  .check-desc{
    font-size:15px;
    color:var(--ink-2);
    line-height:1.75;
  }

  /* ---------- 使用方式图文 ---------- */
  .how-grid{
    display:grid;
    grid-template-columns:minmax(0,1fr) minmax(0,1.05fr);
    gap:56px;
    align-items:center;
  }
  .how-figure{
    border-radius:var(--r-lg);
    overflow:hidden;
    border:1px solid var(--line);
    box-shadow:var(--sh-md);
    background:var(--card);
  }
  .how-figure img{width:100%;aspect-ratio:4/3;object-fit:cover;border-radius:0;}
  .how-body h2{
    font-size:28px;
    line-height:1.3;
    font-weight:700;
    color:var(--green-900);
    margin-bottom:16px;
  }
  .how-body p{color:var(--ink-2);margin-bottom:20px;}
  .how-list li{
    display:flex;
    gap:12px;
    padding:14px 0;
    border-top:1px solid var(--line);
    font-size:15px;
    color:var(--ink-2);
    line-height:1.75;
  }
  .how-list li:first-child{border-top:none;}
  .how-list strong{color:var(--green-900);font-weight:600;}
  .how-dot{
    width:20px;height:20px;
    border-radius:50%;
    border:1.5px solid var(--green-600);
    flex-shrink:0;
    margin-top:5px;
    position:relative;
  }
  .how-dot::after{
    content:"";
    position:absolute;inset:5px;
    border-radius:50%;
    background:var(--lime);
  }

  /* ---------- 适用场景三小卡 ---------- */
  .scene-band{
    background:var(--green-900);
    padding:78px 0;
    color:#EAF3EF;
  }
  .scene-band .eyebrow{color:var(--lime);}
  .scene-band h2{
    font-size:28px;
    font-weight:700;
    color:#FFFFFF;
    line-height:1.3;
  }
  .scene-band .band-sub{
    margin-top:10px;
    font-size:16px;
    color:rgba(234,243,239,.75);
    max-width:620px;
  }
  .scene-grid{
    display:grid;
    grid-template-columns:repeat(3,minmax(0,1fr));
    gap:24px;
    margin-top:36px;
  }
  .scene-card{
    background:rgba(255,255,255,.05);
    border:1px solid var(--line-dark);
    border-radius:var(--r-md);
    padding:22px;
    transition:transform .18s ease-out,background-color .18s ease-out,border-color .18s ease-out;
  }
  .scene-card:hover{
    transform:translateY(-2px);
    background:rgba(255,255,255,.09);
    border-color:rgba(198,242,78,.5);
  }
  .scene-num{
    font-size:13px;
    font-weight:700;
    letter-spacing:.1em;
    color:var(--lime);
    font-variant-numeric:tabular-nums;
  }
  .scene-card h3{
    font-size:18px;
    font-weight:700;
    color:#FFFFFF;
    margin:12px 0 8px;
    line-height:1.45;
  }
  .scene-card p{
    font-size:15px;
    line-height:1.75;
    color:rgba(234,243,239,.78);
  }

  /* ---------- FAQ ---------- */
  .faq-list{
    border:1px solid var(--line);
    border-radius:var(--r-lg);
    background:var(--card);
    overflow:hidden;
    box-shadow:var(--sh-sm);
  }
  .faq-item + .faq-item{border-top:1px solid var(--line);}
  .faq-item summary{
    display:flex;
    align-items:center;
    justify-content:space-between;
    gap:20px;
    min-height:62px;
    padding:18px 26px;
    font-size:17px;
    font-weight:600;
    color:var(--green-900);
    cursor:pointer;
    list-style:none;
    transition:background-color .18s ease-out;
  }
  .faq-item summary::-webkit-details-marker{display:none;}
  .faq-item summary:hover{background:rgba(245,243,238,.8);}
  .faq-item summary .arrow{
    width:20px;height:20px;
    flex-shrink:0;
    color:var(--green-600);
    transition:transform .22s ease-out;
  }
  .faq-item[open] summary .arrow{transform:rotate(180deg);}
  .faq-answer{
    padding:0 26px 22px;
    font-size:15px;
    line-height:1.8;
    color:var(--ink-2);
  }

  /* ---------- CTA 带 ---------- */
  .cta-band{
    padding:72px 0;
  }
  .cta-card{
    position:relative;
    overflow:hidden;
    border-radius:var(--r-lg);
    background:var(--green-800);
    padding:48px;
    display:flex;
    align-items:center;
    justify-content:space-between;
    gap:32px;
    box-shadow:var(--sh-lg);
  }
  .cta-card::after{
    content:"";
    position:absolute;
    right:-60px;top:-60px;
    width:280px;height:280px;
    border-radius:50%;
    background:radial-gradient(circle at center,rgba(198,242,78,.22),rgba(198,242,78,0) 70%);
    pointer-events:none;
  }
  .cta-card h2{
    font-size:27px;
    font-weight:700;
    color:#FFFFFF;
    line-height:1.35;
    margin-bottom:10px;
  }
  .cta-card p{
    font-size:16px;
    color:rgba(234,243,239,.78);
    max-width:520px;
  }
  .cta-actions{
    display:flex;
    flex-direction:column;
    align-items:flex-start;
    gap:14px;
    flex-shrink:0;
  }
  .cta-actions .back-link{
    color:rgba(234,243,239,.8);
    font-size:15px;
    border-bottom:2px solid transparent;
    padding-bottom:2px;
    transition:border-color .18s ease-out,color .18s ease-out;
  }
  .cta-actions .back-link:hover{color:var(--lime);border-color:var(--lime);}

  /* ---------- 页脚 ---------- */
  .site-footer{
    background:var(--green-900);
    color:#EAF3EF;
    padding:64px 0 28px;
    margin-top:20px;
  }
  .footer-grid{
    display:grid;
    grid-template-columns:minmax(0,1.4fr) repeat(3,minmax(0,1fr));
    gap:40px;
  }
  .footer-brand{
    display:flex;
    align-items:center;
    gap:10px;
    font-size:16px;
    font-weight:700;
    color:#FFFFFF;
    margin-bottom:14px;
  }
  .footer-brand .brand-mark{background:var(--lime);color:var(--green-900);}
  .footer-desc{
    font-size:14px;
    line-height:1.8;
    color:rgba(234,243,239,.7);
    max-width:360px;
  }
  .footer-col h4{
    font-size:15px;
    font-weight:700;
    color:#FFFFFF;
    margin-bottom:14px;
  }
  .footer-col ul li{margin-bottom:10px;}
  .footer-col a{
    font-size:14px;
    color:rgba(234,243,239,.72);
    transition:color .18s ease-out;
  }
  .footer-col a:hover{color:var(--lime);}
  .footer-contact{
    font-size:14px;
    line-height:1.9;
    color:rgba(234,243,239,.72);
  }
  .footer-contact a{color:var(--lime);}
  .footer-bottom{
    margin-top:44px;
    padding-top:22px;
    border-top:1px solid var(--line-dark);
    display:flex;
    flex-wrap:wrap;
    align-items:center;
    justify-content:space-between;
    gap:12px;
    font-size:13px;
    color:rgba(234,243,239,.6);
  }
  .footer-bottom a{color:rgba(234,243,239,.72);}
  .footer-bottom a:hover{color:var(--lime);}

  /* ---------- 弹层 ---------- */
  .modal{
    position:fixed;
    inset:0;
    z-index:120;
    display:flex;
    align-items:center;
    justify-content:center;
    padding:24px;
  }
  .modal[hidden]{display:none;}
  .modal-mask{
    position:absolute;
    inset:0;
    background:rgba(8,35,31,.62);
    backdrop-filter:blur(3px);
  }
  .modal-card{
    position:relative;
    width:100%;
    max-width:540px;
    max-height:88vh;
    overflow-y:auto;
    background:var(--bg);
    border-radius:var(--r-lg);
    padding:30px;
    box-shadow:var(--sh-lg);
  }
  .modal-card h3{
    font-size:20px;
    font-weight:700;
    color:var(--green-900);
    margin-bottom:8px;
  }
  .modal-sub{
    font-size:14px;
    color:var(--ink-2);
    margin-bottom:22px;
  }
  .modal-close{
    position:absolute;
    top:18px;right:18px;
    width:40px;height:40px;
    display:inline-flex;align-items:center;justify-content:center;
    border-radius:50%;
    border:1px solid var(--line);
    background:var(--card);
    color:var(--green-800);
    transition:background-color .18s ease-out;
  }
  .modal-close:hover{background:rgba(14,58,51,.07);}
  .modal-close svg{width:20px;height:20px;}
  .field{margin-bottom:16px;}
  .field label{
    display:block;
    font-size:13px;
    color:var(--ink-3);
    margin-bottom:6px;
  }
  .field input,
  .field select,
  .field textarea{
    width:100%;
    min-height:50px;
    padding:12px 14px;
    border-radius:12px;
    border:1px solid var(--line);
    background:var(--card);
    transition:border-color .18s ease-out,box-shadow .18s ease-out;
  }
  .field textarea{min-height:92px;resize:vertical;line-height:1.7;}
  .field input:focus,
  .field select:focus,
  .field textarea:focus{
    outline:none;
    border-color:var(--green-600);
    box-shadow:0 0 0 3px rgba(198,242,78,.55);
  }
  .privacy-row{
    display:flex;
    align-items:flex-start;
    gap:10px;
    font-size:13px;
    color:var(--ink-2);
    line-height:1.7;
    margin:6px 0 20px;
  }
  .privacy-row input{width:18px;height:18px;margin-top:3px;flex-shrink:0;}
  .privacy-row a{color:var(--green-600);text-decoration:underline;}

  body.is-locked{overflow:hidden;}

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

  /* ---------- 响应式 ---------- */
  @media (max-width:1024px){
    :root{--pad-x:24px;--sec-y:72px;}
    .nav-links{display:none;}
    .nav-toggle{display:inline-flex;}
    .mobile-drawer{
      display:none;
      flex-direction:column;
      gap:4px;
      margin-top:10px;
      padding:14px;
      border-radius:var(--r-lg);
      background:rgba(245,243,238,.97);
      border:1px solid var(--line);
      box-shadow:var(--sh-md);
    }
    .mobile-drawer.is-open{display:flex;}
    .mobile-drawer a{
      display:flex;
      align-items:center;
      min-height:48px;
      padding:0 14px;
      border-radius:12px;
      font-size:16px;
      font-weight:500;
      color:var(--ink-2);
    }
    .mobile-drawer a.is-active{color:var(--green-800);font-weight:700;background:rgba(198,242,78,.24);}
    .drawer-cta{margin-top:8px;width:100%;}
    .intro-grid{grid-template-columns:1fr;gap:32px;}
    .intro h1{font-size:34px;}
    .how-grid{grid-template-columns:1fr;gap:32px;}
    .scene-grid{grid-template-columns:1fr;gap:16px;}
    .footer-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:32px;}
    .cta-card{flex-direction:column;align-items:flex-start;padding:36px;}
  }
  @media (max-width:760px){
    :root{--pad-x:20px;--sec-y:56px;}
    body{font-size:16px;line-height:1.8;}
    .intro h1{font-size:29px;line-height:1.28;}
    .section-head{flex-direction:column;align-items:flex-start;gap:12px;margin-bottom:26px;}
    .section-head h2{font-size:23px;}
    .scene-band h2{font-size:23px;}
    .how-body h2{font-size:23px;}
    .cta-card h2{font-size:22px;}
    .check-row{
      grid-template-columns:1fr;
      gap:8px;
      padding:18px 20px;
    }
    .check-row .tag{justify-self:start;}
    .check-group-head{padding:18px 20px;flex-wrap:wrap;}
    .check-group-head .group-note{display:none;}
    .faq-item summary{padding:16px 20px;font-size:16px;}
    .faq-answer{padding:0 20px 20px;}
    .stat-row{flex-direction:column;align-items:flex-start;gap:4px;}
    .stat-label{text-align:left;max-width:none;}
    .footer-grid{grid-template-columns:1fr;gap:28px;}
    .footer-bottom{flex-direction:column;align-items:flex-start;}
    .modal{padding:0;align-items:flex-end;}
    .modal-card{
      max-width:none;
      border-radius:20px 20px 0 0;
      padding:24px 20px 28px;
      max-height:88vh;
    }
  }
  @media (max-width:420px){
    .brand-text{font-size:15px;}
    .btn{padding:12px 20px;font-size:15px;}
    .intro h1{font-size:26px;}
  }