/* roulang page: index */
:root{
  --brand-900:#0C3B33;
  --brand-700:#14574A;
  --brand-500:#1E7A65;
  --lime-400:#C6F04D;
  --amber-500:#FF8A3D;
  --ink-900:#0B1F1C;
  --ink-600:#4A5F5B;
  --ink-300:#8FA09B;
  --paper:#F5F7F4;
  --surface:#FFFFFF;
  --line:#E2E8E3;
  --r-s:8px;
  --r-m:14px;
  --r-l:22px;
  --shadow-1:0 1px 2px rgba(11,31,28,.06),0 10px 26px -14px rgba(11,31,28,.20);
  --shadow-2:0 2px 4px rgba(11,31,28,.08),0 18px 40px -18px rgba(11,31,28,.28);
  --container:1200px;
  --gap:24px;
  --font:'PingFang SC','Hiragino Sans GB','Microsoft YaHei','Source Han Sans SC',-apple-system,BlinkMacSystemFont,'Segoe UI',Roboto,Helvetica,Arial,sans-serif;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:var(--font);
  font-size:16px;
  line-height:1.85;
  color:var(--ink-900);
  background:var(--paper);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;height:auto;}
a{color:var(--brand-700);text-decoration:none;transition:color .22s ease;}
a:hover{color:var(--brand-500);}
a:focus-visible,button:focus-visible,input:focus-visible,select:focus-visible,textarea:focus-visible,summary:focus-visible{
  outline:2px solid var(--lime-400);
  outline-offset:2px;
  border-radius:4px;
}
h1,h2,h3,h4{margin:0;font-weight:700;color:var(--ink-900);}
h1{font-size:clamp(30px,4vw,46px);line-height:1.25;}
h2{font-size:clamp(24px,2.6vw,34px);line-height:1.3;}
h3{font-size:20px;font-weight:600;line-height:1.45;}
p{margin:0;}
ul{margin:0;padding:0;list-style:none;}
button{font-family:inherit;font-size:inherit;cursor:pointer;border:0;background:none;}
input,select,textarea{font-family:inherit;font-size:16px;color:var(--ink-900);}
body.no-scroll{overflow:hidden;}

.container{
  width:100%;
  max-width:var(--container);
  margin:0 auto;
  padding:0 24px;
}
.section{padding:88px 0;}
.section--tight{padding:64px 0;}
.section--paper{background:var(--paper);}
.section--white{background:var(--surface);}
.section-head{max-width:720px;margin-bottom:44px;}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:12px;letter-spacing:.14em;text-transform:uppercase;
  color:var(--brand-500);font-weight:600;margin-bottom:14px;
}
.eyebrow::before{content:"";width:22px;height:2px;background:var(--lime-400);display:block;}
.sec-desc{margin-top:14px;color:var(--ink-600);font-size:16px;line-height:1.85;}
.section-head--row{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;max-width:none;}

/* 按钮 */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:46px;padding:0 24px;border-radius:var(--r-s);
  font-size:15px;font-weight:600;line-height:1;
  transition:background-color .22s ease,color .22s ease,box-shadow .22s ease,transform .22s ease,border-color .22s ease;
  white-space:nowrap;
}
.btn-primary{background:var(--amber-500);color:#fff;box-shadow:var(--shadow-1);}
.btn-primary:hover{background:#ef7c2f;color:#fff;transform:translateY(-2px);box-shadow:var(--shadow-2);}
.btn-primary:active{transform:translateY(0);box-shadow:var(--shadow-1);}
.btn-outline{background:transparent;color:var(--brand-700);border:1.5px solid var(--brand-700);}
.btn-outline:hover{background:rgba(30,122,101,.08);color:var(--brand-700);transform:translateY(-2px);}
.btn-outline:active{transform:translateY(0);}
.btn-ghost{color:var(--brand-700);height:auto;padding:0;font-weight:600;}
.btn-ghost::after{content:"→";margin-left:6px;transition:transform .22s ease;display:inline-block;}
.btn-ghost:hover::after{transform:translateX(4px);}
.btn-lg{height:48px;padding:0 28px;}
.btn:disabled{opacity:.4;cursor:not-allowed;transform:none;box-shadow:none;}

/* 顶部信息条 */
.topbar{background:var(--brand-900);color:rgba(255,255,255,.86);font-size:12px;line-height:36px;}
.topbar .container{display:flex;align-items:center;justify-content:space-between;gap:16px;}
.topbar-left,.topbar-mid,.topbar-right{white-space:nowrap;overflow:hidden;text-overflow:ellipsis;}
.topbar-mid{color:rgba(255,255,255,.62);}
.topbar-right a{color:var(--lime-400);font-weight:600;}
.topbar-right a:hover{color:#dcff7c;text-decoration:underline;text-decoration-thickness:1px;text-underline-offset:3px;}

/* 主导航 */
.site-header{
  position:sticky;top:0;z-index:60;background:var(--surface);
  border-bottom:1px solid var(--line);
  box-shadow:0 1px 0 rgba(11,31,28,.02);
}
.nav-inner{display:flex;align-items:center;justify-content:space-between;gap:24px;height:68px;}
.logo{display:flex;align-items:center;gap:12px;color:var(--ink-900);}
.logo-mark{
  display:inline-flex;align-items:center;justify-content:center;
  background:var(--brand-900);color:var(--lime-400);
  font-size:17px;font-weight:700;letter-spacing:.02em;
  padding:7px 12px;border-radius:var(--r-s);line-height:1;
}
.logo-sub{
  display:block;font-size:11px;letter-spacing:.08em;color:var(--ink-600);font-weight:600;
  border-left:1px solid var(--line);padding-left:12px;line-height:1.5;
}
.nav-list{display:flex;align-items:center;gap:4px;}
.nav-link{
  position:relative;display:inline-block;padding:10px 12px;
  font-size:15px;font-weight:500;color:var(--ink-900);border-radius:var(--r-s);
  transition:color .22s ease,background-color .22s ease;
}
.nav-link::after{
  content:"";position:absolute;left:12px;right:12px;bottom:2px;height:2px;
  background:var(--lime-400);transform:scaleX(0);transform-origin:left;
  transition:transform .22s ease;
}
.nav-link:hover{color:var(--brand-500);background:rgba(30,122,101,.05);}
.nav-link:hover::after{transform:scaleX(1);}
.nav-link.is-active{color:var(--brand-500);font-weight:600;}
.nav-link.is-active::after{transform:scaleX(1);}
.nav-actions{display:flex;align-items:center;gap:12px;}
.icon-btn{
  width:40px;height:40px;border-radius:50%;display:inline-flex;align-items:center;justify-content:center;
  color:var(--ink-600);border:1px solid var(--line);background:var(--surface);
  transition:color .22s ease,border-color .22s ease,background-color .22s ease;
}
.icon-btn:hover{color:var(--brand-500);border-color:var(--brand-500);background:rgba(30,122,101,.05);}
.icon-btn svg{width:18px;height:18px;}
.menu-toggle{display:none;width:42px;height:42px;border-radius:var(--r-s);border:1px solid var(--line);align-items:center;justify-content:center;flex-direction:column;gap:4px;}
.menu-toggle span{display:block;width:18px;height:2px;background:var(--ink-900);border-radius:2px;transition:transform .22s ease,opacity .22s ease;}
.menu-toggle[aria-expanded="true"] span:nth-child(1){transform:translateY(6px) rotate(45deg);}
.menu-toggle[aria-expanded="true"] span:nth-child(2){opacity:0;}
.menu-toggle[aria-expanded="true"] span:nth-child(3){transform:translateY(-6px) rotate(-45deg);}

/* 抽屉 */
.drawer{
  position:fixed;top:0;right:0;bottom:0;width:300px;max-width:86vw;z-index:90;
  background:var(--surface);border-left:1px solid var(--line);
  transform:translateX(102%);transition:transform .28s ease;
  padding:22px;display:flex;flex-direction:column;gap:18px;overflow-y:auto;
}
.drawer.is-open{transform:translateX(0);}
.drawer-head{display:flex;align-items:center;justify-content:space-between;}
.drawer-close{width:38px;height:38px;border-radius:50%;border:1px solid var(--line);display:flex;align-items:center;justify-content:center;color:var(--ink-600);}
.drawer-close:hover{color:var(--brand-500);border-color:var(--brand-500);}
.drawer-nav a{
  display:block;padding:13px 12px;border-radius:var(--r-s);color:var(--ink-900);
  font-size:15px;border-bottom:1px solid var(--line);
}
.drawer-nav a:hover,.drawer-nav a.is-active{background:rgba(30,122,101,.06);color:var(--brand-500);}
.drawer-overlay{
  position:fixed;inset:0;background:rgba(11,31,28,.5);z-index:85;
  opacity:0;visibility:hidden;transition:opacity .28s ease,visibility .28s ease;
}
.drawer-overlay.is-open{opacity:1;visibility:visible;}

/* Hero */
.hero{
  position:relative;
  background:
    linear-gradient(180deg,rgba(12,59,51,.94),rgba(12,59,51,.86)),
    url('/assets/images/backpic/back-1.png') center/cover no-repeat;
  color:#fff;
  overflow:hidden;
  padding:92px 0 84px;
}
.hero::after{
  content:"";position:absolute;right:-40px;bottom:-40px;width:320px;height:320px;
  background-image:radial-gradient(rgba(198,240,77,.30) 1.4px,transparent 1.4px);
  background-size:14px 14px;opacity:.5;pointer-events:none;
}
.hero-grid{display:grid;grid-template-columns:repeat(12,1fr);gap:var(--gap);align-items:center;position:relative;z-index:2;}
.hero-copy{grid-column:span 6;}
.hero-eyebrow{
  display:inline-flex;align-items:center;gap:10px;font-size:12px;letter-spacing:.14em;
  color:var(--lime-400);font-weight:600;margin-bottom:16px;
}
.hero-eyebrow::before{content:"";width:24px;height:2px;background:var(--lime-400);}
.hero h1{color:#fff;}
.hero-sub{margin-top:18px;color:rgba(255,255,255,.78);font-size:16.5px;line-height:1.9;max-width:520px;}
.hero-cta{display:flex;flex-wrap:wrap;gap:14px;margin-top:30px;}
.hero .btn-outline{color:#fff;border-color:rgba(255,255,255,.55);}
.hero .btn-outline:hover{background:rgba(255,255,255,.12);color:#fff;}
.hero-meta{display:flex;flex-wrap:wrap;gap:12px;margin-top:30px;}
.chip{
  display:inline-flex;align-items:center;gap:6px;
  font-size:12px;letter-spacing:.04em;padding:6px 12px;border-radius:999px;
  background:rgba(198,240,77,.14);color:var(--lime-400);border:1px solid rgba(198,240,77,.28);
}
.hero-media{
  grid-column:span 6;position:relative;border-radius:var(--r-l);overflow:hidden;
  box-shadow:0 24px 60px -28px rgba(0,0,0,.6);border:1px solid rgba(255,255,255,.14);
}
.hero-media img{width:100%;aspect-ratio:3/2;object-fit:cover;}
.hero-nodes{
  position:absolute;left:18px;bottom:18px;display:flex;gap:8px;background:rgba(12,59,51,.72);
  padding:8px 12px;border-radius:999px;backdrop-filter:blur(2px);
}
.hero-nodes span{font-size:11px;letter-spacing:.08em;color:var(--lime-400);font-weight:600;}

/* 能力编号纵列 */
.cap-grid{display:grid;grid-template-columns:7fr 5fr;gap:48px;align-items:start;}
.cap-list{display:flex;flex-direction:column;}
.cap-item{display:flex;gap:22px;padding:22px 0;border-top:1px solid var(--line);}
.cap-item:last-child{border-bottom:1px solid var(--line);}
.cap-num{
  flex:0 0 auto;font-size:14px;font-weight:700;color:var(--brand-500);
  letter-spacing:.06em;padding-top:3px;font-variant-numeric:tabular-nums;
}
.cap-body h3{margin-bottom:8px;}
.cap-body p{color:var(--ink-600);font-size:15px;}
.cap-media{border-radius:var(--r-l);overflow:hidden;border:1px solid var(--line);box-shadow:var(--shadow-1);}
.cap-media img{width:100%;aspect-ratio:4/3;object-fit:cover;}

/* 数据带 */
.stats{background:var(--brand-900);color:#fff;padding:72px 0;}
.stats-head{max-width:640px;margin-bottom:40px;}
.stats-head h2{color:#fff;}
.stats-head p{color:rgba(255,255,255,.72);margin-top:12px;}
.stats-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:28px;}
.stat{border-top:1px solid rgba(255,255,255,.16);padding-top:22px;}
.stat-num{
  font-size:clamp(32px,4vw,52px);font-weight:700;color:var(--lime-400);line-height:1.1;
  font-variant-numeric:tabular-nums;
}
.stat-unit{font-size:15px;color:var(--lime-400);margin-left:4px;font-weight:600;}
.stat-label{margin-top:12px;color:rgba(255,255,255,.78);font-size:14px;line-height:1.7;}

/* 案例图文交替 */
.case-row{display:grid;grid-template-columns:repeat(12,1fr);gap:40px;align-items:center;padding:36px 0;border-bottom:1px dashed var(--line);}
.case-row:last-child{border-bottom:0;}
.case-media{grid-column:span 5;border-radius:var(--r-m);overflow:hidden;border:1px solid var(--line);box-shadow:var(--shadow-1);}
.case-media img{width:100%;aspect-ratio:16/10;object-fit:cover;transition:transform .4s ease;}
.case-row:hover .case-media img{transform:scale(1.03);}
.case-body{grid-column:span 7;}
.case-row.reverse .case-media{order:2;grid-column:span 5;}
.case-row.reverse .case-body{order:1;grid-column:span 7;}
.badge{
  display:inline-block;font-size:11px;letter-spacing:.04em;font-weight:600;
  background:var(--lime-400);color:var(--brand-900);border-radius:999px;padding:5px 12px;
}
.case-body h3{margin:14px 0 10px;}
.case-body p{color:var(--ink-600);font-size:15px;}

/* 步骤时间轴 */
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:24px;position:relative;}
.steps::before{
  content:"";position:absolute;left:8%;right:8%;top:26px;height:1px;
  background:repeating-linear-gradient(90deg,var(--line) 0 8px,transparent 8px 16px);
}
.step{position:relative;background:var(--surface);border:1px solid var(--line);border-radius:var(--r-m);padding:26px 22px;box-shadow:var(--shadow-1);transition:transform .22s ease,box-shadow .22s ease;}
.step:hover{transform:translateY(-3px);box-shadow:var(--shadow-2);}
.step-num{
  width:52px;height:52px;border-radius:50%;border:2px solid var(--amber-500);color:var(--amber-500);
  display:flex;align-items:center;justify-content:center;font-weight:700;font-size:16px;
  background:var(--surface);margin-bottom:16px;position:relative;z-index:2;
}
.step h3{font-size:17px;margin-bottom:8px;}
.step p{color:var(--ink-600);font-size:14.5px;}

/* 资讯卡片 */
.post-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;}
.post-card{
  display:flex;flex-direction:column;background:var(--surface);
  border:1px solid var(--line);border-radius:var(--r-m);overflow:hidden;
  box-shadow:var(--shadow-1);transition:transform .22s ease,box-shadow .22s ease;
}
.post-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-2);}
.post-cover{display:block;overflow:hidden;background:var(--paper);}
.post-cover img{width:100%;aspect-ratio:16/10;object-fit:cover;transition:transform .4s ease;}
.post-card:hover .post-cover img{transform:scale(1.04);}
.post-body{padding:20px 22px 22px;display:flex;flex-direction:column;gap:10px;flex:1;}
.post-title{font-size:17px;font-weight:600;line-height:1.5;color:var(--ink-900);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.post-card:hover .post-title{color:var(--brand-500);}
.post-excerpt{color:var(--ink-600);font-size:14px;line-height:1.75;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.post-foot{margin-top:auto;display:flex;align-items:center;justify-content:space-between;gap:12px;padding-top:12px;border-top:1px solid var(--line);font-size:13px;color:var(--ink-300);}
.post-foot .arrow{color:var(--brand-500);font-weight:600;}
.empty-state{
  border:1px dashed var(--line);background:var(--paper);border-radius:var(--r-m);
  padding:48px 24px;text-align:center;color:var(--ink-600);
  display:flex;flex-direction:column;align-items:center;gap:16px;
}
.empty-state svg{width:36px;height:36px;color:var(--ink-300);}

/* FAQ */
.faq-grid{display:grid;grid-template-columns:4fr 8fr;gap:48px;align-items:start;}
.faq-intro p{color:var(--ink-600);margin-top:14px;font-size:15px;}
.faq-list{display:flex;flex-direction:column;gap:12px;}
.faq-item{
  background:var(--surface);border:1px solid var(--line);border-left:3px solid var(--lime-400);
  border-radius:var(--r-s);overflow:hidden;transition:box-shadow .22s ease;
}
.faq-item[open]{box-shadow:var(--shadow-1);}
.faq-item summary{
  list-style:none;cursor:pointer;padding:18px 50px 18px 20px;position:relative;
  font-size:16px;font-weight:600;color:var(--ink-900);
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary::after{
  content:"";position:absolute;right:22px;top:24px;width:8px;height:8px;
  border-right:2px solid var(--brand-500);border-bottom:2px solid var(--brand-500);
  transform:rotate(45deg);transition:transform .25s ease;
}
.faq-item[open] summary::after{transform:rotate(225deg);}
.faq-a{padding:0 22px 20px 20px;color:var(--ink-600);font-size:15px;line-height:1.85;}

/* 联系 */
.contact-grid{display:grid;grid-template-columns:7fr 5fr;gap:40px;align-items:start;}
.form-card{background:var(--surface);border:1px solid var(--line);border-radius:var(--r-m);padding:30px;box-shadow:var(--shadow-1);}
.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:18px;}
.field{display:flex;flex-direction:column;gap:8px;}
.field.full{grid-column:span 2;}
.field label{font-size:14px;font-weight:600;color:var(--ink-900);}
.field input,.field select,.field textarea{
  width:100%;border:1px solid var(--line);border-radius:var(--r-s);
  background:var(--surface);padding:0 14px;height:46px;
  transition:border-color .22s ease,box-shadow .22s ease;
}
.field textarea{height:auto;padding:12px 14px;min-height:120px;resize:vertical;line-height:1.7;}
.field input:focus,.field select:focus,.field textarea:focus{
  border-color:var(--brand-500);box-shadow:0 0 0 3px rgba(198,240,77,.55);outline:none;
}
.field .hint{font-size:12px;color:var(--ink-300);}
.form-actions{grid-column:span 2;display:flex;align-items:center;gap:16px;flex-wrap:wrap;}
.form-note{font-size:13px;color:var(--ink-300);}
.form-success{
  grid-column:span 2;display:none;background:rgba(198,240,77,.22);border:1px solid rgba(198,240,77,.75);
  color:var(--brand-900);border-radius:var(--r-s);padding:12px 16px;font-size:14px;
}
.form-success.show{display:block;}
.info-card{background:var(--brand-900);color:#fff;border-radius:var(--r-m);padding:30px;box-shadow:var(--shadow-1);}
.info-card h3{color:#fff;margin-bottom:18px;}
.info-item{padding:16px 0;border-top:1px solid rgba(255,255,255,.14);}
.info-item strong{display:block;font-size:13px;letter-spacing:.06em;color:var(--lime-400);margin-bottom:6px;font-weight:600;}
.info-item span{color:rgba(255,255,255,.8);font-size:14.5px;line-height:1.75;display:block;}

/* CTA 通栏 */
.cta-band{background:var(--brand-700);color:#fff;padding:56px 0;}
.cta-inner{display:flex;align-items:center;justify-content:space-between;gap:32px;flex-wrap:wrap;}
.cta-inner h2{color:#fff;font-size:clamp(22px,2.4vw,30px);}
.cta-inner p{color:rgba(255,255,255,.78);margin-top:10px;font-size:15px;}

/* 页脚 */
.site-footer{background:var(--brand-900);color:rgba(255,255,255,.8);padding:64px 0 0;}
.foot-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:40px;}
.foot-brand .logo-mark{background:rgba(255,255,255,.08);color:var(--lime-400);}
.foot-brand .logo-sub{color:rgba(255,255,255,.6);border-left-color:rgba(255,255,255,.16);}
.foot-desc{margin-top:18px;font-size:14px;line-height:1.85;color:rgba(255,255,255,.66);}
.foot-title{font-size:13px;letter-spacing:.08em;color:var(--lime-400);font-weight:600;margin-bottom:16px;}
.foot-links li{margin-bottom:10px;}
.foot-links a{font-size:14px;color:rgba(255,255,255,.72);}
.foot-links a:hover{color:#fff;text-decoration:underline;text-decoration-thickness:2px;text-decoration-color:var(--lime-400);text-underline-offset:4px;}
.foot-contact li{font-size:14px;color:rgba(255,255,255,.72);margin-bottom:10px;line-height:1.75;}
.foot-bottom{
  margin-top:52px;border-top:1px solid rgba(255,255,255,.08);padding:20px 0;
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:13px;color:rgba(255,255,255,.55);
}

/* 响应式 */
@media (max-width:1279px){
  .post-grid{grid-template-columns:repeat(2,1fr);}
  .stats-grid{grid-template-columns:repeat(2,1fr);gap:24px;}
  .steps{grid-template-columns:repeat(2,1fr);}
  .steps::before{display:none;}
}
@media (max-width:1023px){
  .section{padding:64px 0;}
  .nav-list{display:none;}
  .menu-toggle{display:flex;}
  .hero{padding:72px 0 64px;}
  .hero-copy{grid-column:span 12;}
  .hero-media{grid-column:span 12;margin-top:8px;}
  .cap-grid{grid-template-columns:1fr;gap:32px;}
  .faq-grid{grid-template-columns:1fr;gap:28px;}
  .contact-grid{grid-template-columns:1fr;gap:28px;}
  .foot-grid{grid-template-columns:1fr 1fr;gap:32px;}
  .case-row,.case-row.reverse{grid-template-columns:1fr;}
  .case-media,.case-body,.case-row.reverse .case-media,.case-row.reverse .case-body{grid-column:span 12;order:0;}
  .case-row{gap:22px;}
}
@media (max-width:767px){
  .container{padding:0 18px;}
  .topbar-mid{display:none;}
  .nav-actions .btn{display:none;}
  .section{padding:52px 0;}
  .stats{padding:52px 0;}
  .post-grid{grid-template-columns:1fr;}
  .stats-grid{grid-template-columns:1fr;}
  .steps{grid-template-columns:1fr;}
  .form-grid{grid-template-columns:1fr;}
  .field.full,.form-actions,.form-success{grid-column:span 1;}
  .form-card,.info-card{padding:22px;}
  .cta-band{padding:44px 0;}
  .foot-grid{grid-template-columns:1fr;gap:28px;}
  .foot-bottom{flex-direction:column;align-items:flex-start;}
  h3{font-size:18px;}
}
@media (max-width:479px){
  .container{padding:0 14px;}
  body{font-size:15px;}
  .logo-sub{font-size:10px;}
  .hero-cta .btn{width:100%;}
  .post-body{padding:16px;}
  .faq-item summary{padding:16px 44px 16px 16px;font-size:15px;}
}

/* roulang page: category1 */
:root{
  --brand-900:#0C3B33;
  --brand-700:#14574A;
  --brand-500:#1E7A65;
  --lime-400:#C6F04D;
  --amber-500:#FF8A3D;
  --ink-900:#0B1F1C;
  --ink-600:#4A5F5B;
  --ink-300:#8FA09B;
  --paper:#F5F7F4;
  --surface:#FFFFFF;
  --line:#E2E8E3;
  --r-s:8px;
  --r-m:14px;
  --r-l:22px;
  --shadow-1:0 1px 2px rgba(11,31,28,.06),0 10px 26px -14px rgba(11,31,28,.20);
  --shadow-2:0 2px 6px rgba(11,31,28,.08),0 18px 38px -16px rgba(11,31,28,.28);
  --ease:.22s ease;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:'PingFang SC','Hiragino Sans GB','Microsoft YaHei','Source Han Sans SC',sans-serif;
  font-size:16px;
  line-height:1.85;
  color:var(--ink-900);
  background:var(--paper);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;height:auto}
a{color:var(--brand-500);text-decoration:none;transition:color var(--ease)}
a:hover{color:var(--brand-700);text-decoration:underline;text-decoration-color:var(--lime-400);text-decoration-thickness:2px;text-underline-offset:4px}
button,input,textarea,select{font:inherit;color:inherit}
h1,h2,h3,h4,p,ul,ol,figure{margin:0}
ul,ol{padding:0;list-style:none}
:focus-visible{outline:2px solid var(--lime-400);outline-offset:2px;border-radius:4px}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px}

/* 顶部信息条 */
.topbar{background:var(--brand-900);color:#fff;font-size:12px;letter-spacing:.02em}
.topbar .container{display:flex;align-items:center;justify-content:space-between;gap:18px;min-height:36px;padding-top:6px;padding-bottom:6px}
.topbar-domain{color:rgba(255,255,255,.72)}
.topbar-tip{color:rgba(255,255,255,.82)}
.topbar-link{color:var(--lime-400);font-weight:500;white-space:nowrap}
.topbar-link:hover{color:var(--lime-400);text-decoration-color:var(--lime-400)}
.topbar-tip{display:none}
@media (min-width:768px){.topbar-tip{display:block}}

/* 主导航 */
.site-header{position:sticky;top:0;z-index:70;background:var(--surface);border-bottom:1px solid var(--line)}
.nav-inner{display:flex;align-items:center;gap:26px;min-height:68px;padding-top:10px;padding-bottom:10px}
.logo{display:flex;align-items:center;gap:9px;text-decoration:none;flex:none}
.logo:hover{text-decoration:none}
.logo-mark{font-size:23px;font-weight:800;letter-spacing:-.02em;color:var(--brand-900);line-height:1}
.logo-sub{font-size:11px;letter-spacing:.08em;color:var(--ink-600);border-left:1px solid var(--line);padding-left:9px;line-height:1.3}
.logo:hover .logo-mark{color:var(--brand-500)}
.nav-list{display:flex;align-items:center;gap:22px;margin-left:auto}
.nav-link{position:relative;font-size:15px;font-weight:500;color:var(--ink-600);padding:6px 0;white-space:nowrap}
.nav-link::after{content:"";position:absolute;left:0;right:0;bottom:0;height:2px;background:var(--lime-400);transform:scaleX(0);transform-origin:left;transition:transform var(--ease)}
.nav-link:hover{color:var(--brand-500);text-decoration:none}
.nav-link:hover::after{transform:scaleX(1)}
.nav-link.is-active{color:var(--brand-500);font-weight:600}
.nav-link.is-active::after{transform:scaleX(1)}
.nav-actions{display:flex;align-items:center;gap:12px;flex:none}
.icon-btn{width:38px;height:38px;display:inline-flex;align-items:center;justify-content:center;background:var(--surface);border:1px solid var(--line);border-radius:999px;color:var(--ink-600);cursor:pointer;transition:all var(--ease)}
.icon-btn svg{width:18px;height:18px}
.icon-btn:hover{color:var(--brand-500);border-color:var(--brand-500);transform:translateY(-2px);box-shadow:var(--shadow-1)}
.icon-btn:active{transform:translateY(0)}
.menu-toggle{display:none;width:40px;height:40px;border:1px solid var(--line);border-radius:var(--r-s);background:var(--surface);cursor:pointer;flex-direction:column;align-items:center;justify-content:center;gap:4px;transition:all var(--ease)}
.menu-toggle span{display:block;width:18px;height:2px;background:var(--brand-900);border-radius:2px;transition:all var(--ease)}
.menu-toggle:hover{border-color:var(--brand-500)}
.menu-toggle[aria-expanded="true"] span:nth-child(1){transform:translateY(6px) rotate(45deg)}
.menu-toggle[aria-expanded="true"] span:nth-child(2){opacity:0}
.menu-toggle[aria-expanded="true"] span:nth-child(3){transform:translateY(-6px) rotate(-45deg)}

/* 按钮 */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;height:44px;padding:0 22px;font-size:15px;font-weight:600;border-radius:var(--r-s);border:1.5px solid transparent;cursor:pointer;transition:all var(--ease);text-decoration:none;white-space:nowrap}
.btn:hover{text-decoration:none}
.btn-primary{background:var(--amber-500);color:#fff}
.btn-primary:hover{background:#F0792B;color:#fff;transform:translateY(-2px);box-shadow:var(--shadow-2)}
.btn-primary:active{transform:translateY(1px);box-shadow:none}
.btn-outline{background:transparent;border-color:var(--brand-500);color:var(--brand-500)}
.btn-outline:hover{background:rgba(30,122,101,.08);color:var(--brand-700);transform:translateY(-2px)}
.btn-outline:active{transform:translateY(1px)}
.btn-lime{background:var(--lime-400);color:var(--brand-900)}
.btn-lime:hover{background:#B7E23C;color:var(--brand-900);transform:translateY(-2px);box-shadow:var(--shadow-2)}
.btn-ghost{background:transparent;color:var(--brand-500);border-color:transparent;padding:0 12px}
.btn-ghost:hover{color:var(--brand-700);text-decoration:underline;text-decoration-color:var(--lime-400);text-decoration-thickness:2px}
.btn:disabled,.btn[disabled]{opacity:.4;cursor:not-allowed;transform:none;box-shadow:none}
.btn-lg{height:52px;padding:0 28px;font-size:16px}
.btn-light{background:#fff;color:var(--brand-900)}
.btn-light:hover{background:#F0F6EE;color:var(--brand-900);transform:translateY(-2px)}
.nav-actions .btn-primary{height:40px;padding:0 18px;font-size:14px}

/* 面包屑 */
.breadcrumb-bar{background:var(--surface);border-bottom:1px solid var(--line)}
.breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--ink-300);padding:14px 0}
.breadcrumb a{color:var(--ink-600)}
.breadcrumb a:hover{color:var(--brand-500)}
.breadcrumb .sep{color:var(--ink-300)}
.breadcrumb .current{color:var(--brand-700);font-weight:600}

/* 内页 Hero */
.page-hero{position:relative;overflow:hidden;color:#fff;background:
  linear-gradient(96deg,rgba(12,59,51,.97) 0%,rgba(12,59,51,.90) 48%,rgba(20,87,74,.74) 100%),
  url('/assets/images/backpic/back-2.png') center/cover no-repeat}
.page-hero::after{
  content:"";position:absolute;right:-60px;bottom:-60px;width:280px;height:280px;
  background-image:radial-gradient(rgba(198,240,77,.42) 1.4px,transparent 1.4px);
  background-size:16px 16px;opacity:.55;pointer-events:none}
.hero-grid{position:relative;z-index:2;display:grid;grid-template-columns:1.05fr .95fr;gap:56px;align-items:center;padding:66px 0 74px}
.page-hero .eyebrow{display:inline-flex;align-items:center;gap:8px;font-size:12px;letter-spacing:.08em;color:var(--lime-400);border:1px solid rgba(198,240,77,.4);border-radius:999px;padding:5px 14px;margin-bottom:20px}
.page-hero h1{font-size:clamp(30px,4vw,46px);font-weight:700;line-height:1.25;letter-spacing:-.01em;margin-bottom:18px}
.page-hero h1 em{font-style:normal;color:var(--lime-400)}
.page-hero .lede{font-size:16px;line-height:1.9;color:rgba(255,255,255,.82);max-width:560px;margin-bottom:28px}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px}
.hero-meta{display:flex;flex-wrap:wrap;gap:10px;margin-top:26px}
.chip{display:inline-flex;align-items:center;gap:6px;font-size:12px;letter-spacing:.04em;padding:5px 12px;border-radius:999px;background:rgba(198,240,77,.14);color:var(--lime-400);border:1px solid rgba(198,240,77,.28)}
.hero-visual{position:relative}
.hero-visual img{width:100%;aspect-ratio:3/2;object-fit:cover;border-radius:var(--r-l);border:1px solid rgba(255,255,255,.16)}
.hero-nodes{position:absolute;left:18px;bottom:18px;display:flex;gap:8px}
.hero-nodes span{width:34px;height:34px;border-radius:50%;background:rgba(12,59,51,.72);border:1px solid rgba(198,240,77,.55);color:var(--lime-400);font-size:12px;display:flex;align-items:center;justify-content:center;font-weight:600;backdrop-filter:blur(2px)}
.hero-rail{position:absolute;left:-22px;top:0;bottom:0;width:1px;background:linear-gradient(180deg,transparent,rgba(198,240,77,.5),transparent)}

/* 通用板块 */
.section{padding:88px 0}
.section-alt{background:var(--surface);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.section-head{max-width:720px;margin-bottom:46px}
.section-tag{display:inline-block;font-size:12px;letter-spacing:.1em;color:var(--brand-500);font-weight:600;margin-bottom:12px}
.section-head h2{font-size:clamp(24px,2.6vw,34px);font-weight:700;line-height:1.3;margin-bottom:14px}
.section-head p{color:var(--ink-600);font-size:16px;line-height:1.9}

/* 图文交替介绍条 */
.story-row{display:grid;grid-template-columns:1fr 1fr;gap:56px;align-items:center;padding:44px 0;border-bottom:1px dashed var(--line)}
.story-row:last-child{border-bottom:none;padding-bottom:0}
.story-row:first-child{padding-top:0}
.story-row.flip .story-media{order:2}
.story-num{display:flex;align-items:center;gap:12px;font-size:13px;letter-spacing:.08em;color:var(--brand-500);font-weight:600;margin-bottom:14px}
.story-num i{display:block;width:26px;height:2px;background:var(--lime-400);font-style:normal}
.story-row h3{font-size:20px;font-weight:600;line-height:1.45;margin-bottom:14px}
.story-row p{color:var(--ink-600);font-size:15.5px;line-height:1.9;margin-bottom:14px}
.story-media img{width:100%;aspect-ratio:16/10;object-fit:cover;border-radius:var(--r-m);border:1px solid var(--line);box-shadow:var(--shadow-1)}
.story-media{position:relative}
.story-media::before{content:"";position:absolute;left:-14px;top:14px;width:2px;height:56px;background:var(--lime-400);border-radius:2px}
.story-row.flip .story-media::before{left:auto;right:-14px}
.story-list li{position:relative;padding-left:22px;font-size:15px;color:var(--ink-600);line-height:1.85;margin-top:8px}
.story-list li::before{content:"";position:absolute;left:0;top:11px;width:8px;height:8px;border-radius:50%;border:2px solid var(--brand-500);background:var(--lime-400)}

/* 要点清单 */
.check-grid{display:grid;grid-template-columns:.85fr 1.15fr;gap:56px;align-items:start}
.check-intro h2{font-size:clamp(24px,2.6vw,34px);font-weight:700;line-height:1.3;margin-bottom:16px}
.check-intro p{color:var(--ink-600);font-size:15.5px;line-height:1.9;margin-bottom:22px}
.check-panel{background:var(--surface);border:1px solid var(--line);border-radius:var(--r-l);padding:10px 26px;box-shadow:var(--shadow-1)}
.check-item{display:flex;gap:18px;padding:20px 0;border-bottom:1px solid var(--line)}
.check-item:last-child{border-bottom:none}
.check-item .idx{flex:none;width:36px;height:36px;border-radius:50%;border:1.5px solid var(--amber-500);color:var(--amber-500);font-size:13px;font-weight:700;display:flex;align-items:center;justify-content:center}
.check-item h4{font-size:16px;font-weight:600;margin-bottom:6px}
.check-item p{font-size:14.5px;color:var(--ink-600);line-height:1.8}

/* 场景条带列表 */
.scene-list{border-top:1px solid var(--line)}
.scene-item{display:grid;grid-template-columns:150px 1fr auto;gap:28px;align-items:center;padding:26px 0;border-bottom:1px solid var(--line);transition:all var(--ease)}
.scene-item:hover{padding-left:10px;background:linear-gradient(90deg,rgba(198,240,77,.14),transparent 60%)}
.scene-item h3{font-size:17px;font-weight:600;margin-bottom:6px}
.scene-item p{font-size:14.5px;color:var(--ink-600);line-height:1.8;margin:0}
.scene-item .arrow{font-size:18px;color:var(--brand-500);transition:transform var(--ease)}
.scene-item:hover .arrow{transform:translateX(5px)}
.badge{display:inline-flex;align-items:center;justify-content:center;font-size:11px;letter-spacing:.06em;font-weight:600;padding:4px 10px;border-radius:999px;background:var(--lime-400);color:var(--brand-900);white-space:nowrap}
.badge-soft{background:rgba(30,122,101,.12);color:var(--brand-700)}

/* FAQ */
.faq-layout{display:grid;grid-template-columns:.72fr 1.28fr;gap:56px;align-items:start}
.faq-side h2{font-size:clamp(24px,2.6vw,34px);font-weight:700;line-height:1.3;margin-bottom:16px}
.faq-side p{color:var(--ink-600);font-size:15px;line-height:1.9;margin-bottom:22px}
.faq-item{background:var(--surface);border:1px solid var(--line);border-left:3px solid var(--lime-400);border-radius:var(--r-m);margin-bottom:14px;overflow:hidden;transition:box-shadow var(--ease)}
.faq-item:hover{box-shadow:var(--shadow-1)}
.faq-item summary{list-style:none;cursor:pointer;display:flex;align-items:center;justify-content:space-between;gap:18px;padding:18px 22px;font-size:16px;font-weight:600;color:var(--ink-900)}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::after{content:"";flex:none;width:9px;height:9px;border-right:2px solid var(--brand-500);border-bottom:2px solid var(--brand-500);transform:rotate(45deg) translateY(-3px);transition:transform var(--ease)}
.faq-item[open] summary::after{transform:rotate(-135deg) translateY(-3px)}
.faq-item[open]{box-shadow:var(--shadow-1)}
.faq-answer{padding:0 22px 20px;font-size:15px;line-height:1.85;color:var(--ink-600)}

/* CTA 通栏 */
.cta-band{background:var(--brand-900);color:#fff;position:relative;overflow:hidden}
.cta-band::before{content:"";position:absolute;left:-40px;top:-40px;width:220px;height:220px;background-image:radial-gradient(rgba(198,240,77,.34) 1.4px,transparent 1.4px);background-size:15px 15px;opacity:.5}
.cta-inner{position:relative;z-index:2;display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:28px;padding:56px 0}
.cta-inner h2{font-size:clamp(22px,2.4vw,30px);font-weight:700;line-height:1.35;margin-bottom:10px}
.cta-inner p{color:rgba(255,255,255,.78);font-size:15px;max-width:620px}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px}

/* 页脚 */
.site-footer{background:var(--brand-900);color:rgba(255,255,255,.78);padding:64px 0 0;margin-top:0}
.foot-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.1fr;gap:40px;padding-bottom:44px}
.site-footer .logo-mark{color:#fff}
.site-footer .logo-sub{color:rgba(255,255,255,.6);border-left-color:rgba(255,255,255,.18)}
.foot-desc{margin-top:16px;font-size:13.5px;line-height:1.9;color:rgba(255,255,255,.62);max-width:320px}
.foot-title{font-size:13px;letter-spacing:.1em;color:var(--lime-400);font-weight:600;margin-bottom:16px}
.foot-links li,.foot-contact li{margin-bottom:10px;font-size:14px}
.foot-links a{color:rgba(255,255,255,.74)}
.foot-links a:hover{color:var(--lime-400);text-decoration-color:var(--lime-400)}
.foot-contact li{color:rgba(255,255,255,.62)}
.foot-bottom{border-top:1px solid rgba(255,255,255,.08);padding:20px 0 26px;display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;font-size:12.5px;color:rgba(255,255,255,.5)}

/* 导航遮罩 */
.nav-mask{position:fixed;inset:0;background:rgba(11,31,28,.5);opacity:0;visibility:hidden;transition:all var(--ease);z-index:65}
.nav-mask.is-open{opacity:1;visibility:visible}

/* 响应式 */
@media (max-width:1023px){
  .nav-list{display:none;position:fixed;top:0;right:0;width:300px;height:100vh;background:var(--surface);flex-direction:column;align-items:stretch;gap:0;padding:76px 22px 28px;z-index:80;transform:translateX(100%);transition:transform var(--ease);box-shadow:var(--shadow-2);margin-left:0}
  .nav-list.is-open{display:flex;transform:translateX(0)}
  .nav-list .nav-link{padding:15px 0;border-bottom:1px solid var(--line);font-size:16px}
  .nav-list .nav-link::after{display:none}
  .nav-list .nav-link.is-active{color:var(--brand-500);border-bottom-color:var(--lime-400)}
  .menu-toggle{display:flex}
  .nav-inner{gap:16px}
  .hero-grid{grid-template-columns:1fr;gap:38px;padding:52px 0 58px}
  .check-grid,.faq-layout{grid-template-columns:1fr;gap:36px}
  .section{padding:70px 0}
  .scene-item{grid-template-columns:120px 1fr auto;gap:20px}
}
@media (max-width:767px){
  .topbar .container{flex-wrap:wrap;justify-content:center;text-align:center;gap:6px}
  .logo-sub{font-size:10px}
  .nav-actions .btn-primary{display:none}
  .hero-grid{padding:42px 0 48px}
  .page-hero h1{font-size:30px}
  .story-row{grid-template-columns:1fr;gap:24px;padding:32px 0}
  .story-row.flip .story-media{order:0}
  .story-media::before{display:none}
  .check-panel{padding:6px 18px}
  .scene-item{grid-template-columns:1fr;gap:10px;padding:22px 0}
  .scene-item .arrow{display:none}
  .scene-item:hover{padding-left:0}
  .cta-inner{padding:44px 0}
  .foot-grid{grid-template-columns:1fr;gap:32px;padding-bottom:32px}
  .section{padding:56px 0}
  .section-head{margin-bottom:32px}
}
@media (max-width:520px){
  .container{padding:0 14px}
  body{font-size:15px}
  .hero-actions .btn{width:100%}
  .cta-actions .btn{width:100%}
  .faq-item summary{padding:16px 16px;font-size:15px}
  .faq-answer{padding:0 16px 18px}
}

/* roulang page: article */
:root{
  --brand-900:#0C3B33;
  --brand-700:#14574A;
  --brand-500:#1E7A65;
  --lime-400:#C6F04D;
  --amber-500:#FF8A3D;
  --ink-900:#0B1F1C;
  --ink-600:#4A5F5B;
  --ink-300:#8FA09B;
  --paper:#F5F7F4;
  --surface:#FFFFFF;
  --line:#E2E8E3;
  --r-s:8px;
  --r-m:14px;
  --r-l:22px;
  --shadow-1:0 1px 2px rgba(11,31,28,.06),0 10px 26px -14px rgba(11,31,28,.20);
  --shadow-2:0 2px 4px rgba(11,31,28,.07),0 18px 38px -18px rgba(11,31,28,.28);
  --font-cn:'PingFang SC','Hiragino Sans GB','Microsoft YaHei','Source Han Sans SC',system-ui,-apple-system,'Segoe UI',sans-serif;
  --font-mono:ui-monospace,SFMono-Regular,Menlo,Consolas,'Courier New',monospace;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;font-family:var(--font-cn);font-size:16px;line-height:1.85;
  color:var(--ink-600);background:var(--paper);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border-style:none}
a{color:var(--brand-500);text-decoration:none;transition:color .2s ease}
a:hover{color:var(--brand-700);text-decoration:underline;text-decoration-color:var(--lime-400);text-decoration-thickness:2px;text-underline-offset:3px}
button,input,select,textarea{font:inherit;color:inherit}
button{cursor:pointer;background:none;border:0}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4,p{margin:0}
:focus-visible{outline:2px solid var(--lime-400);outline-offset:2px;border-radius:4px}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px}
.progress-bar{position:fixed;top:0;left:0;height:3px;width:0;background:var(--lime-400);z-index:99;transition:width .1s linear}

/* ---------- 顶部信息条 ---------- */
.topbar{background:var(--brand-900);color:rgba(255,255,255,.82);font-size:12px;letter-spacing:.02em}
.topbar-inner{display:flex;align-items:center;justify-content:space-between;gap:18px;height:36px}
.topbar-domain{color:#fff;font-weight:600;letter-spacing:.08em;white-space:nowrap}
.topbar-tip{flex:1;text-align:center;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;color:rgba(255,255,255,.72)}
.topbar-link{color:var(--lime-400);white-space:nowrap}
.topbar-link:hover{color:#fff;text-decoration:none}

/* ---------- 主导航 ---------- */
.site-header{position:sticky;top:0;z-index:70;background:rgba(255,255,255,.94);backdrop-filter:blur(8px);border-bottom:1px solid var(--line)}
.nav-inner{display:flex;align-items:center;gap:28px;height:68px}
.logo{display:inline-flex;align-items:baseline;gap:8px;text-decoration:none;color:var(--ink-900)}
.logo:hover{text-decoration:none;color:var(--ink-900)}
.logo-mark{font-size:24px;font-weight:800;letter-spacing:-.02em;color:var(--brand-900)}
.logo-mark::after{content:"";display:inline-block;width:8px;height:8px;margin-left:4px;border-radius:50%;background:var(--lime-400);vertical-align:baseline}
.logo-sub{font-size:11px;letter-spacing:.08em;color:var(--ink-300);font-weight:500}
.nav-list{display:flex;align-items:center;gap:6px;margin-left:auto;flex-wrap:wrap}
.nav-link{position:relative;display:inline-block;padding:10px 12px;font-size:15px;font-weight:500;color:var(--ink-600);border-radius:var(--r-s)}
.nav-link::after{content:"";position:absolute;left:12px;right:12px;bottom:4px;height:2px;background:var(--lime-400);transform:scaleX(0);transform-origin:left center;transition:transform .22s ease}
.nav-link:hover{color:var(--brand-500);text-decoration:none}
.nav-link:hover::after{transform:scaleX(1)}
.nav-link:active{transform:translateY(1px)}
.nav-link.is-active{color:var(--brand-700)}
.nav-link.is-active::after{transform:scaleX(1)}
.nav-actions{display:flex;align-items:center;gap:12px}
.icon-btn{display:inline-flex;align-items:center;justify-content:center;width:40px;height:40px;border:1px solid var(--line);border-radius:999px;color:var(--ink-600);transition:.22s ease}
.icon-btn svg{width:19px;height:19px}
.icon-btn:hover{color:var(--brand-700);border-color:var(--brand-500);background:#fff;box-shadow:var(--shadow-1)}
.menu-toggle{display:none;flex-direction:column;justify-content:center;gap:5px;width:42px;height:42px;padding:0 10px;border:1px solid var(--line);border-radius:var(--r-s)}
.menu-toggle span{display:block;height:2px;border-radius:2px;background:var(--ink-900);transition:.22s ease}
.menu-toggle:hover span:nth-child(2){background:var(--brand-500)}
body.nav-open .menu-toggle span:nth-child(1){transform:translateY(7px) rotate(45deg)}
body.nav-open .menu-toggle span:nth-child(2){opacity:0}
body.nav-open .menu-toggle span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}
.nav-backdrop{position:fixed;inset:0;background:rgba(11,31,28,.5);opacity:0;visibility:hidden;transition:.25s ease;z-index:55}
body.nav-open .nav-backdrop{opacity:1;visibility:visible}

/* ---------- 按钮 ---------- */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;height:48px;padding:0 22px;border-radius:var(--r-s);font-size:15px;font-weight:600;letter-spacing:.01em;border:1.5px solid transparent;transition:background-color .22s ease,color .22s ease,box-shadow .22s ease,transform .18s ease,border-color .22s ease}
.btn:hover{text-decoration:none;transform:translateY(-2px);box-shadow:var(--shadow-2)}
.btn:active{transform:translateY(0);box-shadow:var(--shadow-1)}
.btn:focus-visible{outline:2px solid var(--lime-400);outline-offset:2px}
.btn[disabled],.btn.is-disabled{opacity:.4;cursor:not-allowed;transform:none;box-shadow:none}
.btn-primary{background:var(--amber-500);color:#fff}
.btn-primary:hover{background:#ef7a2b;color:#fff}
.btn-outline{border-color:var(--brand-500);color:var(--brand-700);background:transparent}
.btn-outline:hover{background:rgba(30,122,101,.08);color:var(--brand-900)}
.btn-ghost{color:var(--brand-700);background:rgba(198,240,77,.22);border-color:transparent}
.btn-ghost:hover{background:rgba(198,240,77,.4);color:var(--brand-900)}
.btn-block{width:100%}
.btn-lg{height:52px;padding:0 28px;font-size:16px}

/* ---------- 文章头部 ---------- */
.page-hero{position:relative;background-image:linear-gradient(115deg,rgba(12,59,51,.94) 0%,rgba(20,87,74,.88) 55%,rgba(12,59,51,.82) 100%),url('/assets/images/backpic/back-2.png');background-size:cover;background-position:center;color:#fff;overflow:hidden}
.page-hero::after{content:"";position:absolute;right:-40px;bottom:-40px;width:260px;height:260px;background-image:radial-gradient(rgba(198,240,77,.35) 1.4px,transparent 1.5px);background-size:16px 16px;opacity:.5;pointer-events:none}
.page-hero-inner{position:relative;z-index:2;padding:34px 0 52px;max-width:900px}
.breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:rgba(255,255,255,.7);margin-bottom:22px}
.breadcrumb a{color:rgba(255,255,255,.86)}
.breadcrumb a:hover{color:#fff;text-decoration-color:var(--lime-400)}
.breadcrumb .sep{color:rgba(255,255,255,.4)}
.breadcrumb .current{color:#fff;font-weight:500;max-width:420px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.page-hero h1{font-size:clamp(28px,3.4vw,42px);line-height:1.28;font-weight:700;color:#fff;letter-spacing:-.01em}
.article-meta{display:flex;flex-wrap:wrap;align-items:center;gap:10px 18px;margin-top:22px;font-size:13px;color:rgba(255,255,255,.78)}
.badge{display:inline-flex;align-items:center;height:24px;padding:0 10px;border-radius:999px;background:var(--lime-400);color:#12412F;font-size:11px;font-weight:700;letter-spacing:.04em}
.meta-dot{width:4px;height:4px;border-radius:50%;background:rgba(255,255,255,.45)}

/* ---------- 布局 ---------- */
.article-layout{display:grid;grid-template-columns:minmax(0,1fr) 312px;gap:48px;align-items:start;padding:56px 0 88px}
.article-shell{background:var(--surface);border:1px solid var(--line);border-radius:var(--r-l);box-shadow:var(--shadow-1);padding:38px 40px 44px}
.article-body{max-width:760px;font-size:16.5px;line-height:1.9;color:#2F4441}
.article-body p{margin:0 0 18px}
.article-body h2{position:relative;margin:44px 0 18px;padding-left:16px;font-size:clamp(21px,2.2vw,26px);line-height:1.4;font-weight:700;color:var(--ink-900)}
.article-body h2:first-child{margin-top:0}
.article-body h2::before{content:"";position:absolute;left:0;top:.22em;bottom:.22em;width:5px;border-radius:3px;background:var(--lime-400)}
.article-body h3{margin:32px 0 14px;font-size:20px;line-height:1.45;font-weight:600;color:var(--ink-900)}
.article-body h4{margin:24px 0 12px;font-size:17px;font-weight:600;color:var(--ink-900)}
.article-body ul,.article-body ol{margin:0 0 20px;padding-left:22px}
.article-body ul li{position:relative;padding-left:6px;margin-bottom:9px}
.article-body ul li::before{content:"";position:absolute;left:-14px;top:.72em;width:6px;height:6px;border-radius:2px;background:var(--lime-400)}
.article-body ol{list-style:decimal}
.article-body ol li{margin-bottom:9px;padding-left:4px}
.article-body ol li::marker{color:var(--brand-500);font-weight:700}
.article-body blockquote{margin:26px 0;padding:18px 24px;background:#F7F9F5;border-left:4px solid var(--brand-500);border-radius:0 var(--r-m) var(--r-m) 0;color:var(--ink-900);font-size:16px}
.article-body blockquote p:last-child{margin-bottom:0}
.article-body img{border-radius:var(--r-m);border:1px solid var(--line);margin:26px 0}
.article-body figure{margin:26px 0}
.article-body figcaption,.article-body .caption{display:block;margin-top:10px;font-size:13px;color:var(--ink-300);text-align:center}
.article-body table{width:100%;border-collapse:separate;border-spacing:0;margin:26px 0;font-size:14.5px;border:1px solid var(--line);border-radius:var(--r-m);overflow:hidden}
.article-body thead th{background:var(--brand-900);color:#fff;font-weight:600;text-align:left;padding:12px 16px;font-size:13px;letter-spacing:.03em}
.article-body tbody td{padding:12px 16px;border-top:1px solid var(--line);color:var(--ink-600);background:#fff}
.article-body tbody tr:nth-child(even) td{background:#F7F9F5}
.article-body pre{margin:26px 0;padding:18px 20px;background:#F0F3EF;border:1px solid var(--line);border-radius:var(--r-m);overflow-x:auto;font-family:var(--font-mono);font-size:13.5px;line-height:1.7;color:#26403A}
.article-body code{font-family:var(--font-mono);font-size:.92em;background:#F0F3EF;border:1px solid var(--line);border-radius:6px;padding:1px 6px;color:var(--brand-700)}
.article-body pre code{background:none;border:0;padding:0;color:inherit}
.article-body hr{margin:36px 0;border:0;border-top:1px dashed var(--line)}
.article-body a{border-bottom:1px solid rgba(30,122,101,.35)}
.article-body a:hover{border-bottom-color:var(--lime-400)}

/* ---------- 标签 / 分页 / 相关 ---------- */
.tag-row{display:flex;flex-wrap:wrap;align-items:center;gap:10px;margin-top:40px;padding-top:26px;border-top:1px solid var(--line)}
.tag-row .tag-label{font-size:12px;letter-spacing:.06em;color:var(--ink-300)}
.tag{display:inline-flex;align-items:center;height:28px;padding:0 12px;border:1px solid var(--line);border-radius:999px;font-size:12.5px;color:var(--ink-600);background:#fff;transition:.22s ease}
.tag:hover{border-color:var(--brand-500);color:var(--brand-700);background:rgba(198,240,77,.18);text-decoration:none}
.pager{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:18px;margin-top:44px}
.pager-card{display:block;padding:20px 22px;background:#fff;border:1px solid var(--line);border-radius:var(--r-m);box-shadow:var(--shadow-1);transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease}
.pager-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-2);border-color:rgba(30,122,101,.4);text-decoration:none}
.pager-label{display:block;font-size:11px;letter-spacing:.08em;color:var(--ink-300);margin-bottom:8px}
.pager-title{display:block;font-size:16px;font-weight:600;color:var(--ink-900)}
.pager-card:hover .pager-title{color:var(--brand-700)}
.section-block{margin-top:64px}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:18px;margin-bottom:24px}
.section-head h2{font-size:clamp(21px,2.2vw,26px);font-weight:700;color:var(--ink-900)}
.section-head .more-link{font-size:14px;font-weight:600;white-space:nowrap}
.card-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px}
.card{display:flex;flex-direction:column;background:var(--surface);border:1px solid var(--line);border-radius:var(--r-m);overflow:hidden;box-shadow:var(--shadow-1);transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease}
.card:hover{transform:translateY(-2px);box-shadow:var(--shadow-2);border-color:rgba(30,122,101,.35)}
.card-media{aspect-ratio:16/10;overflow:hidden;background:var(--paper)}
.card-media img{width:100%;height:100%;object-fit:cover;transition:transform .4s ease}
.card:hover .card-media img{transform:scale(1.04)}
.card-body{padding:20px 22px 22px;display:flex;flex-direction:column;gap:10px;flex:1}
.card-title{font-size:17px;font-weight:600;line-height:1.45;color:var(--ink-900);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.card:hover .card-title{color:var(--brand-700)}
.card-text{font-size:14px;color:var(--ink-600);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.card-foot{margin-top:auto;display:flex;align-items:center;justify-content:space-between;padding-top:12px;border-top:1px solid var(--line);font-size:12.5px;color:var(--ink-300)}
.card-foot .arrow{color:var(--brand-500);font-weight:700;transition:transform .22s ease}
.card:hover .card-foot .arrow{transform:translateX(3px)}
.empty-state{padding:38px 24px;border:1px dashed var(--line);border-radius:var(--r-m);background:var(--paper);text-align:center;color:var(--ink-600)}
.empty-state p{margin-bottom:16px}
.back-row{margin-top:44px;display:flex;flex-wrap:wrap;gap:14px;align-items:center}

/* ---------- 侧栏 ---------- */
.article-side{position:sticky;top:96px;display:flex;flex-direction:column;gap:20px}
.side-card{background:var(--surface);border:1px solid var(--line);border-radius:var(--r-m);padding:22px;box-shadow:var(--shadow-1)}
.side-title{font-size:13px;font-weight:700;letter-spacing:.08em;color:var(--ink-900);margin-bottom:14px;padding-bottom:10px;border-bottom:1px solid var(--line)}
.toc-list{counter-reset:toc;font-size:14px}
.toc-list li{counter-increment:toc;margin-bottom:10px;line-height:1.6}
.toc-list li a{display:block;position:relative;padding-left:26px;color:var(--ink-600)}
.toc-list li a::before{content:counter(toc,decimal-leading-zero);position:absolute;left:0;top:0;font-size:11px;font-weight:700;color:var(--brand-500);letter-spacing:.04em;line-height:1.9}
.toc-list li a:hover,.toc-list li a.is-current{color:var(--brand-700);text-decoration:none}
.toc-list li a.is-current::before{color:var(--amber-500)}
.side-links li{margin-bottom:2px}
.side-links a{display:flex;align-items:center;justify-content:space-between;gap:10px;padding:11px 2px;font-size:14px;color:var(--ink-600);border-bottom:1px dashed var(--line)}
.side-links li:last-child a{border-bottom:0}
.side-links a::after{content:"›";color:var(--ink-300);font-size:16px;transition:.2s ease}
.side-links a:hover{color:var(--brand-700);text-decoration:none}
.side-links a:hover::after{color:var(--brand-500);transform:translateX(3px)}
.side-card--dark{background:var(--brand-900);border-color:var(--brand-900);color:rgba(255,255,255,.78)}
.side-card--dark .side-title{color:#fff;border-bottom-color:rgba(255,255,255,.16)}
.side-card--dark p{font-size:14px;line-height:1.8;margin-bottom:18px}

/* ---------- 联系 / CTA ---------- */
.cta-band{background:var(--paper);padding:0 0 88px}
.cta-panel{display:grid;grid-template-columns:1.05fr .95fr;gap:40px;background:var(--surface);border:1px solid var(--line);border-radius:var(--r-l);box-shadow:var(--shadow-1);padding:40px}
.cta-panel h2{font-size:clamp(22px,2.4vw,30px);font-weight:700;color:var(--ink-900);margin-bottom:14px}
.cta-panel .lead{font-size:15px;color:var(--ink-600);margin-bottom:22px}
.point-list{display:flex;flex-direction:column;gap:14px;margin-bottom:26px}
.point-list li{position:relative;padding-left:28px;font-size:14.5px;color:var(--ink-600)}
.point-list li::before{content:"";position:absolute;left:0;top:.55em;width:14px;height:14px;border-radius:50%;border:2px solid var(--amber-500)}
.form-card{background:var(--paper);border:1px solid var(--line);border-radius:var(--r-m);padding:26px}
.field{margin-bottom:16px}
.field label{display:block;font-size:13px;font-weight:600;color:var(--ink-900);margin-bottom:8px}
.field input,.field textarea{width:100%;background:#fff;border:1px solid var(--line);border-radius:var(--r-s);padding:0 14px;height:46px;font-size:14.5px;color:var(--ink-900);transition:border-color .2s ease,box-shadow .2s ease}
.field textarea{height:104px;padding:12px 14px;line-height:1.7;resize:vertical}
.field input:focus,.field textarea:focus{outline:none;border-color:var(--brand-500);box-shadow:0 0 0 2px rgba(198,240,77,.55)}
.field.is-error input,.field.is-error textarea{border-color:#E0562B;box-shadow:none}
.field .err{display:none;margin-top:6px;font-size:12px;color:#C2461F}
.field.is-error .err{display:block}
.form-note{font-size:12.5px;color:var(--ink-300);margin-top:12px}
.form-success{display:none;margin-top:16px;padding:12px 16px;border-radius:var(--r-s);background:rgba(198,240,77,.35);color:#12412F;font-size:14px;font-weight:500}
.form-success.is-visible{display:block}
.spin-dots{display:inline-flex;gap:4px}
.spin-dots i{width:5px;height:5px;border-radius:50%;background:#fff;opacity:.5;animation:dot .9s infinite ease-in-out}
.spin-dots i:nth-child(2){animation-delay:.15s}
.spin-dots i:nth-child(3){animation-delay:.3s}
@keyframes dot{0%,80%,100%{opacity:.35;transform:translateY(0)}40%{opacity:1;transform:translateY(-3px)}}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--brand-900);color:rgba(255,255,255,.72);padding:64px 0 0;margin-top:0}
.foot-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:40px;padding-bottom:44px}
.foot-brand .logo-mark{color:#fff}
.foot-brand .logo-sub{color:rgba(255,255,255,.5)}
.foot-desc{margin-top:16px;font-size:14px;line-height:1.85;color:rgba(255,255,255,.66);max-width:320px}
.foot-title{font-size:13px;font-weight:700;letter-spacing:.1em;color:var(--lime-400);margin-bottom:16px}
.foot-links li,.foot-contact li{margin-bottom:11px;font-size:14px;line-height:1.6}
.foot-links a{color:rgba(255,255,255,.74)}
.foot-links a:hover{color:#fff;text-decoration-color:var(--lime-400)}
.foot-contact li{color:rgba(255,255,255,.68)}
.foot-bottom{display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;align-items:center;padding:20px 0;border-top:1px solid rgba(255,255,255,.08);font-size:13px;color:rgba(255,255,255,.55)}

/* ---------- 骨架 ---------- */
.skeleton{background:var(--paper);border-radius:var(--r-m);position:relative;overflow:hidden}
.skeleton::after{content:"";position:absolute;inset:0;background:linear-gradient(90deg,transparent,rgba(255,255,255,.75),transparent);animation:sk 1.4s infinite}
@keyframes sk{0%{transform:translateX(-100%)}100%{transform:translateX(100%)}}

/* ---------- 响应式 ---------- */
@media (max-width:1180px){
  .article-layout{grid-template-columns:minmax(0,1fr) 280px;gap:32px}
  .foot-grid{grid-template-columns:1fr 1fr;gap:32px}
}
@media (max-width:1024px){
  .article-layout{grid-template-columns:minmax(0,1fr)}
  .article-side{position:static;flex-direction:row;flex-wrap:wrap}
  .article-side .side-card{flex:1 1 260px}
  .card-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .cta-panel{grid-template-columns:1fr;padding:32px}
  .article-shell{padding:32px 28px 36px}
}
@media (max-width:900px){
  .nav-list{position:fixed;top:0;right:0;bottom:0;width:290px;max-width:84vw;background:#fff;flex-direction:column;align-items:stretch;gap:2px;padding:88px 22px 28px;margin-left:0;transform:translateX(102%);transition:transform .28s ease;box-shadow:-20px 0 40px -24px rgba(11,31,28,.4);z-index:60;overflow-y:auto}
  body.nav-open .nav-list{transform:none}
  .nav-link{padding:13px 4px;font-size:16px;border-bottom:1px solid var(--line);border-radius:0}
  .nav-link::after{left:4px;right:auto;width:28px;bottom:6px}
  .menu-toggle{display:inline-flex}
  .topbar-tip{display:none}
  .page-hero-inner{padding:26px 0 40px}
}
@media (max-width:768px){
  .container{padding:0 18px}
  .nav-actions .btn{padding:0 16px;height:42px;font-size:14px}
  .article-layout{padding:36px 0 64px}
  .article-shell{padding:26px 20px 30px;border-radius:var(--r-m)}
  .article-body{font-size:16px}
  .card-grid{grid-template-columns:1fr}
  .pager{grid-template-columns:1fr}
  .cta-band{padding-bottom:64px}
  .cta-panel{padding:26px 22px;gap:28px}
  .section-head{flex-direction:column;align-items:flex-start;gap:10px}
  .foot-grid{grid-template-columns:1fr;gap:28px;padding-bottom:32px}
  .article-side{flex-direction:column}
}
@media (max-width:520px){
  .container{padding:0 14px}
  .logo-sub{display:none}
  .article-shell{padding:22px 16px 26px}
  .page-hero h1{font-size:26px}
  .breadcrumb .current{max-width:200px}
  .btn{height:44px;padding:0 18px;font-size:14.5px}
  .btn-lg{height:48px}
  .foot-bottom{font-size:12px}
}

/* roulang page: category3 */
/* ============ 设计变量 ============ */
:root{
  --brand-900:#0C3B33;
  --brand-700:#14574A;
  --brand-500:#1E7A65;
  --lime-400:#C6F04D;
  --lime-100:#EEF9CF;
  --amber-500:#FF8A3D;
  --amber-600:#E8731F;
  --ink-900:#0B1F1C;
  --ink-600:#4A5F5B;
  --ink-300:#8FA09B;
  --paper:#F5F7F4;
  --surface:#FFFFFF;
  --line:#E2E8E3;
  --r-s:8px;
  --r-m:14px;
  --r-l:22px;
  --shadow-1:0 1px 2px rgba(11,31,28,.06),0 10px 26px -14px rgba(11,31,28,.20);
  --shadow-2:0 2px 6px rgba(11,31,28,.08),0 22px 44px -20px rgba(11,31,28,.28);
  --ease:.22s ease;
  --sec:88px;
}
/* ============ reset / base ============ */
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:'PingFang SC','Hiragino Sans GB','Microsoft YaHei','Source Han Sans SC',system-ui,-apple-system,'Segoe UI',sans-serif;
  font-size:16px;line-height:1.85;color:var(--ink-900);background:var(--paper);
  -webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4,p,ul,ol,dl,dd,figure{margin:0}
ul,ol{padding:0;list-style:none}
img{max-width:100%;display:block}
a{color:var(--brand-700);text-decoration:none;transition:color var(--ease),border-color var(--ease)}
a:hover{color:var(--brand-500)}
button{font:inherit;color:inherit;cursor:pointer;border:0;background:none}
input,select,textarea{font:inherit;color:inherit}
:focus-visible{outline:2px solid var(--lime-400);outline-offset:2px;border-radius:4px}
::selection{background:var(--lime-400);color:var(--brand-900)}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px}
.section{padding:var(--sec) 0}
.section-tight{padding:64px 0}
.eyebrow{display:inline-flex;align-items:center;gap:8px;font-size:12px;letter-spacing:.08em;color:var(--brand-500);font-weight:600;text-transform:uppercase}
.eyebrow::before{content:"";width:22px;height:2px;background:var(--lime-400);display:inline-block;border-radius:2px}
h1{font-size:clamp(30px,4vw,46px);line-height:1.25;font-weight:700;letter-spacing:-.01em}
h2{font-size:clamp(24px,2.6vw,34px);line-height:1.3;font-weight:700}
h3{font-size:20px;line-height:1.45;font-weight:600}
.lead{font-size:17px;color:var(--ink-600);line-height:1.9}
.muted{color:var(--ink-600)}
.small{font-size:14px}
.sec-head{max-width:760px;margin-bottom:44px}
.sec-head p{margin-top:14px;color:var(--ink-600)}
.sec-head-row{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:44px}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 24px;border-radius:var(--r-s);
  font-size:15px;font-weight:600;letter-spacing:.01em;
  border:1.5px solid transparent;cursor:pointer;
  transition:background var(--ease),color var(--ease),border-color var(--ease),transform var(--ease),box-shadow var(--ease);
}
.btn-primary{background:var(--amber-500);color:#fff;box-shadow:0 8px 20px -12px rgba(255,138,61,.9)}
.btn-primary:hover{background:var(--amber-600);color:#fff;transform:translateY(-2px)}
.btn-primary:active{transform:translateY(1px)}
.btn-ghost{background:transparent;color:var(--brand-700);border-color:var(--brand-500)}
.btn-ghost:hover{background:#EAF2EF;color:var(--brand-900);border-color:var(--brand-700)}
.btn-ghost:active{transform:translateY(1px)}
.btn-lime{background:var(--lime-400);color:var(--brand-900)}
.btn-lime:hover{background:#B9E63C;color:var(--brand-900);transform:translateY(-2px)}
.btn-sm{height:40px;padding:0 18px;font-size:14px}
.btn[disabled],.btn.is-disabled{opacity:.4;pointer-events:none}
.link-more{font-size:14px;font-weight:600;color:var(--brand-700);border-bottom:2px solid transparent;padding-bottom:2px}
.link-more:hover{border-bottom-color:var(--lime-400);color:var(--brand-900)}
.link-more::after{content:"→";margin-left:6px;display:inline-block;transition:transform var(--ease)}
.link-more:hover::after{transform:translateX(3px)}

/* ============ 徽章 / 标签 ============ */
.badge{display:inline-flex;align-items:center;gap:6px;padding:3px 12px;border-radius:999px;font-size:12px;letter-spacing:.04em;font-weight:600}
.badge-lime{background:var(--lime-400);color:var(--brand-900)}
.badge-line{background:#fff;border:1px solid var(--line);color:var(--ink-600)}
.badge-soft{background:#EAF2EF;color:var(--brand-700)}

/* ============ 顶部信息条 ============ */
.topbar{background:var(--brand-900);color:rgba(255,255,255,.86);font-size:12px;height:36px}
.topbar-inner{display:flex;align-items:center;justify-content:space-between;gap:16px;height:36px}
.topbar-domain{letter-spacing:.06em;color:var(--lime-400);font-weight:600}
.topbar-note{color:rgba(255,255,255,.7);overflow:hidden;white-space:nowrap;text-overflow:ellipsis}
.topbar-link{color:#fff;text-decoration:none;border-bottom:1px solid rgba(255,255,255,.35);padding-bottom:1px;white-space:nowrap}
.topbar-link:hover{color:var(--lime-400);border-bottom-color:var(--lime-400)}

/* ============ 主导航 ============ */
.site-header{position:sticky;top:0;z-index:60;background:#fff;border-bottom:1px solid var(--line)}
.nav-inner{display:flex;align-items:center;justify-content:space-between;gap:24px;height:68px}
.logo{display:flex;align-items:baseline;gap:8px;color:var(--ink-900);flex-shrink:0}
.logo-mark{font-size:24px;font-weight:700;letter-spacing:-.02em;color:var(--brand-900);line-height:1}
.logo-sub{font-size:11px;letter-spacing:.08em;color:var(--ink-600);white-space:nowrap}
.logo:hover .logo-mark{color:var(--brand-500)}
.nav-list{display:flex;align-items:center;gap:26px}
.nav-link{position:relative;font-size:15px;font-weight:500;color:var(--ink-900);padding:6px 0;white-space:nowrap}
.nav-link::after{content:"";position:absolute;left:0;right:0;bottom:-2px;height:2px;background:var(--lime-400);border-radius:2px;transform:scaleX(0);transform-origin:left;transition:transform var(--ease)}
.nav-link:hover{color:var(--brand-500)}
.nav-link:hover::after{transform:scaleX(1)}
.nav-link.is-active{color:var(--brand-700);font-weight:600}
.nav-link.is-active::after{transform:scaleX(1)}
.nav-actions{display:flex;align-items:center;gap:12px}
.icon-btn{width:40px;height:40px;border-radius:var(--r-s);border:1px solid var(--line);display:inline-flex;align-items:center;justify-content:center;color:var(--ink-600);transition:all var(--ease)}
.icon-btn svg{width:19px;height:19px}
.icon-btn:hover{color:var(--brand-700);border-color:var(--brand-500);background:#F2F7F5}
.menu-toggle{display:none;width:42px;height:42px;border-radius:var(--r-s);border:1px solid var(--line);flex-direction:column;align-items:center;justify-content:center;gap:4px}
.menu-toggle span{display:block;width:18px;height:2px;background:var(--ink-900);border-radius:2px;transition:all var(--ease)}
.menu-toggle.is-open span:nth-child(1){transform:translateY(6px) rotate(45deg)}
.menu-toggle.is-open span:nth-child(2){opacity:0}
.menu-toggle.is-open span:nth-child(3){transform:translateY(-6px) rotate(-45deg)}
.nav-mask{position:fixed;inset:0;background:rgba(11,31,28,.5);opacity:0;visibility:hidden;transition:opacity var(--ease);z-index:55}
.nav-mask.is-show{opacity:1;visibility:visible}

/* ============ 面包屑 ============ */
.crumb{background:#fff;border-bottom:1px solid var(--line)}
.crumb-list{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--ink-300);padding:14px 0}
.crumb-list a{color:var(--ink-600)}
.crumb-list a:hover{color:var(--brand-700)}
.crumb-list li+li::before{content:"/";margin-right:8px;color:var(--ink-300)}
.crumb-current{color:var(--ink-900);font-weight:600}

/* ============ Hero ============ */
.hero{background:#fff;border-bottom:1px solid var(--line);position:relative;overflow:hidden}
.hero::after{
  content:"";position:absolute;right:-40px;bottom:-40px;width:260px;height:180px;
  background-image:radial-gradient(var(--brand-500) 1.6px,transparent 1.6px);
  background-size:16px 16px;opacity:.09;pointer-events:none;
}
.hero-grid{display:grid;grid-template-columns:6fr 6fr;gap:56px;align-items:center;padding:76px 0 80px;position:relative;z-index:1}
.hero-copy h1{margin:18px 0 20px}
.hero-copy .lead{max-width:560px}
.hero-tags{display:flex;flex-wrap:wrap;gap:8px;margin-top:26px}
.hero-cta{display:flex;flex-wrap:wrap;gap:14px;margin-top:32px}
.hero-meta{display:flex;flex-wrap:wrap;gap:28px;margin-top:36px;padding-top:26px;border-top:1px dashed var(--line)}
.hero-meta div strong{display:block;font-size:22px;color:var(--brand-700);font-weight:700;line-height:1.2}
.hero-meta div span{font-size:13px;color:var(--ink-600)}
.hero-figure{position:relative}
.hero-figure img{width:100%;aspect-ratio:3/2;object-fit:cover;border-radius:var(--r-l);border:1px solid var(--line);box-shadow:var(--shadow-1)}
.hero-nodes{position:absolute;left:20px;bottom:20px;display:flex;gap:8px}
.hero-nodes span{width:34px;height:34px;border-radius:50%;display:inline-flex;align-items:center;justify-content:center;font-size:12px;font-weight:700;background:rgba(12,59,51,.86);color:var(--lime-400);border:1px solid rgba(198,240,77,.5)}

/* ============ 入口路径时间轴 ============ */
.path-wrap{background:#fff;border:1px solid var(--line);border-radius:var(--r-l);padding:48px 40px;box-shadow:var(--shadow-1)}
.path-steps{display:grid;grid-template-columns:repeat(5,1fr);gap:24px}
.path-step{position:relative;padding-top:64px}
.path-step::before{
  content:"";position:absolute;top:21px;left:46px;right:-24px;height:2px;
  background-image:repeating-linear-gradient(90deg,var(--line) 0 7px,transparent 7px 14px);
}
.path-step:last-child::before{display:none}
.path-node{
  position:absolute;top:0;left:0;width:44px;height:44px;border-radius:50%;
  display:flex;align-items:center;justify-content:center;
  font-size:14px;font-weight:700;color:var(--amber-500);
  background:#fff;border:1.5px solid var(--amber-500);z-index:2;
}
.path-step.is-done .path-node{background:var(--lime-400);border-color:var(--lime-400);color:var(--brand-900)}
.path-step h3{font-size:17px;margin-bottom:8px}
.path-step p{font-size:14px;color:var(--ink-600);line-height:1.8}
.path-step .badge{margin-top:12px}
.path-foot{display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:18px;margin-top:40px;padding-top:28px;border-top:1px solid var(--line)}
.path-foot p{font-size:14px;color:var(--ink-600);max-width:640px}

/* ============ 问题速查（编号纵列） ============ */
.check-list{display:grid;grid-template-columns:1fr;gap:0;border-top:1px solid var(--line)}
.check-item{display:grid;grid-template-columns:78px 1fr auto;gap:24px;align-items:start;padding:26px 8px;border-bottom:1px solid var(--line);transition:background var(--ease)}
.check-item:hover{background:#fff}
.check-num{font-size:15px;font-weight:700;color:var(--brand-500);letter-spacing:.06em;padding-top:2px}
.check-body h3{font-size:18px;margin-bottom:6px}
.check-body p{font-size:14.5px;color:var(--ink-600);max-width:720px}
.check-side{display:flex;flex-direction:column;align-items:flex-end;gap:8px;padding-top:4px}

/* ============ 填写与验证要点（分栏卡） ============ */
.field-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:24px}
.field-card{background:#fff;border:1px solid var(--line);border-radius:var(--r-m);padding:28px;box-shadow:var(--shadow-1);transition:transform var(--ease),box-shadow var(--ease)}
.field-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-2)}
.field-card h3{display:flex;align-items:center;gap:10px;margin-bottom:6px}
.field-card h3 .dot{width:10px;height:10px;border-radius:3px;background:var(--lime-400);flex-shrink:0}
.field-card > p{font-size:14.5px;color:var(--ink-600);margin-bottom:18px}
.field-list li{display:grid;grid-template-columns:auto 1fr;gap:12px;padding:12px 0;border-top:1px dashed var(--line);font-size:14.5px}
.field-list li:first-child{border-top:0}
.field-list b{font-weight:600;color:var(--ink-900);white-space:nowrap}
.field-list span{color:var(--ink-600)}

/* ============ FAQ ============ */
.faq-layout{display:grid;grid-template-columns:4fr 8fr;gap:56px;align-items:start}
.faq-aside{position:sticky;top:96px}
.faq-aside p{margin-top:14px;color:var(--ink-600);font-size:15px}
.faq-aside .badge{margin-top:20px}
.faq-list{display:flex;flex-direction:column;gap:12px}
.faq-item{background:#fff;border:1px solid var(--line);border-left:3px solid var(--lime-400);border-radius:var(--r-m);overflow:hidden;transition:box-shadow var(--ease)}
.faq-item:hover{box-shadow:var(--shadow-1)}
.faq-q{width:100%;display:flex;align-items:center;justify-content:space-between;gap:20px;text-align:left;padding:18px 22px;font-size:16px;font-weight:600;color:var(--ink-900)}
.faq-q:hover{color:var(--brand-700)}
.faq-arrow{width:18px;height:18px;flex-shrink:0;color:var(--brand-500);transition:transform var(--ease)}
.faq-item.is-open .faq-arrow{transform:rotate(180deg)}
.faq-a{max-height:0;overflow:hidden;transition:max-height .3s ease}
.faq-a p{padding:0 22px 20px;font-size:15px;color:var(--ink-600);line-height:1.8}

/* ============ 通栏 CTA ============ */
.cta-band{position:relative;background-color:var(--brand-900);background-image:url('/assets/images/backpic/back-2.png');background-size:cover;background-position:center;border-radius:var(--r-l);overflow:hidden;color:#fff}
.cta-band::before{content:"";position:absolute;inset:0;background:linear-gradient(90deg,rgba(12,59,51,.94) 0%,rgba(12,59,51,.78) 55%,rgba(12,59,51,.6) 100%)}
.cta-inner{position:relative;z-index:2;display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:26px;padding:48px 44px}
.cta-inner h2{color:#fff;max-width:640px}
.cta-inner p{margin-top:12px;color:rgba(255,255,255,.78);font-size:15px;max-width:620px}
.cta-actions{display:flex;gap:14px;flex-wrap:wrap}
.btn-outline-light{background:transparent;border-color:rgba(255,255,255,.55);color:#fff}
.btn-outline-light:hover{background:rgba(255,255,255,.12);color:#fff;border-color:#fff}

/* ============ 联系 / 表单 ============ */
.contact-grid{display:grid;grid-template-columns:7fr 5fr;gap:32px;align-items:start}
.form-card{background:#fff;border:1px solid var(--line);border-radius:var(--r-l);padding:34px;box-shadow:var(--shadow-1)}
.form-row{display:grid;grid-template-columns:repeat(2,1fr);gap:18px}
.field{margin-bottom:18px}
.field label{display:block;font-size:13px;font-weight:600;color:var(--ink-900);margin-bottom:8px;letter-spacing:.02em}
.field input,.field select,.field textarea{
  width:100%;height:46px;padding:0 14px;background:#fff;
  border:1px solid var(--line);border-radius:var(--r-s);color:var(--ink-900);
  transition:border-color var(--ease),box-shadow var(--ease);
}
.field textarea{height:122px;padding:12px 14px;resize:vertical;line-height:1.7}
.field input::placeholder,.field textarea::placeholder{color:var(--ink-300)}
.field input:focus,.field select:focus,.field textarea:focus{
  outline:none;border-color:var(--brand-500);box-shadow:0 0 0 3px rgba(198,240,77,.55);
}
.field select{appearance:none;background-image:linear-gradient(45deg,transparent 50%,var(--ink-600) 50%),linear-gradient(135deg,var(--ink-600) 50%,transparent 50%);background-position:calc(100% - 20px) 21px,calc(100% - 14px) 21px;background-size:6px 6px,6px 6px;background-repeat:no-repeat}
.form-note{font-size:12.5px;color:var(--ink-300);margin-top:6px}
.form-actions{display:flex;flex-wrap:wrap;align-items:center;gap:16px;margin-top:8px}
.form-msg{display:none;margin-top:18px;padding:12px 16px;border-radius:var(--r-s);background:var(--lime-100);color:var(--brand-900);font-size:14px;border:1px solid rgba(198,240,77,.9)}
.form-msg.is-show{display:block}
.info-card{background:var(--brand-900);color:#fff;border-radius:var(--r-l);padding:34px;position:relative;overflow:hidden}
.info-card::after{content:"";position:absolute;right:-30px;top:-30px;width:160px;height:160px;border-radius:50%;border:1px solid rgba(198,240,77,.35)}
.info-card h3{color:#fff;margin-bottom:18px}
.info-card dl{position:relative;z-index:2}
.info-card dt{font-size:12px;letter-spacing:.08em;color:var(--lime-400);margin-top:20px}
.info-card dt:first-child{margin-top:0}
.info-card dd{font-size:14.5px;color:rgba(255,255,255,.84);margin:4px 0 0}
.info-points{margin-top:26px;padding-top:22px;border-top:1px solid rgba(255,255,255,.12);display:flex;flex-direction:column;gap:12px}
.info-points li{display:flex;gap:10px;font-size:14px;color:rgba(255,255,255,.82)}
.info-points li::before{content:"";width:7px;height:7px;border-radius:50%;background:var(--lime-400);margin-top:9px;flex-shrink:0}

/* ============ 页脚 ============ */
.site-footer{background:var(--brand-900);color:#fff;margin-top:var(--sec);padding-top:64px}
.foot-grid{display:grid;grid-template-columns:4fr 3fr 2.5fr 2.5fr;gap:40px;padding-bottom:48px}
.foot-brand .logo-mark{color:#fff}
.foot-brand .logo-sub{color:rgba(255,255,255,.6)}
.foot-brand .logo:hover .logo-mark{color:var(--lime-400)}
.foot-desc{margin-top:16px;font-size:14px;color:rgba(255,255,255,.66);line-height:1.9;max-width:320px}
.foot-title{font-size:13px;letter-spacing:.08em;color:var(--lime-400);font-weight:600;margin-bottom:18px}
.foot-links li{margin-bottom:12px}
.foot-links a{font-size:14px;color:rgba(255,255,255,.72)}
.foot-links a:hover{color:#fff;border-bottom:2px solid var(--lime-400);padding-bottom:1px}
.foot-contact li{font-size:14px;color:rgba(255,255,255,.72);margin-bottom:12px}
.foot-bottom{border-top:1px solid rgba(255,255,255,.08);padding:20px 0 26px;display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;font-size:13px;color:rgba(255,255,255,.55)}

/* ============ 响应式 ============ */
@media (max-width:1279px){
  :root{--sec:76px}
  .hero-grid{gap:40px}
  .path-steps{grid-template-columns:repeat(3,1fr);row-gap:36px}
  .path-step::before{right:-24px}
  .path-step:nth-child(3n)::before{display:none}
}
@media (max-width:1023px){
  :root{--sec:64px}
  .nav-list{gap:18px}
  .nav-link{font-size:14px}
  .logo-sub{display:none}
  .hero-grid{grid-template-columns:1fr;gap:36px;padding:52px 0 60px}
  .hero-figure img{aspect-ratio:16/9}
  .faq-layout{grid-template-columns:1fr;gap:32px}
  .faq-aside{position:static}
  .contact-grid{grid-template-columns:1fr}
  .foot-grid{grid-template-columns:repeat(2,1fr);gap:32px}
  .path-wrap{padding:36px 26px}
  .check-item{grid-template-columns:60px 1fr;gap:18px}
  .check-side{grid-column:2;flex-direction:row;align-items:center;padding-top:0}
}
@media (max-width:767px){
  :root{--sec:52px}
  .container{padding:0 18px}
  .topbar-note{display:none}
  .nav-list{
    position:fixed;top:0;right:0;bottom:0;width:280px;max-width:86vw;
    background:#fff;flex-direction:column;align-items:flex-start;gap:0;
    padding:88px 24px 32px;transform:translateX(102%);
    transition:transform .28s ease;z-index:58;box-shadow:-16px 0 40px -20px rgba(11,31,28,.4);
    overflow-y:auto;
  }
  .nav-list.is-open{transform:translateX(0)}
  .nav-link{width:100%;padding:14px 0;font-size:16px;border-bottom:1px solid var(--line)}
  .nav-link::after{display:none}
  .nav-link.is-active{color:var(--brand-700)}
  .menu-toggle{display:flex}
  .nav-actions .btn-primary{display:none}
  .hero-copy h1{margin-top:14px}
  .hero-meta{gap:20px}
  .path-steps{grid-template-columns:1fr;row-gap:0}
  .path-step{padding:0 0 28px 64px}
  .path-step::before{top:44px;left:21px;right:auto;bottom:-28px;width:2px;height:auto;background-image:repeating-linear-gradient(180deg,var(--line) 0 7px,transparent 7px 14px)}
  .path-step:last-child{padding-bottom:0}
  .field-grid{grid-template-columns:1fr}
  .form-row{grid-template-columns:1fr}
  .cta-inner{padding:34px 24px}
  .form-card,.info-card{padding:24px}
  .foot-grid{grid-template-columns:1fr;gap:28px}
  .sec-head-row{flex-direction:column;align-items:flex-start;gap:12px}
}
@media (max-width:479px){
  .container{padding:0 14px}
  body{font-size:15.5px}
  h1{font-size:30px}
  .btn{height:46px;padding:0 18px;font-size:14.5px}
  .hero-cta{gap:10px}
  .hero-cta .btn{width:100%}
  .badge{font-size:11px}
  .check-item{grid-template-columns:1fr;gap:8px}
  .check-side{grid-column:1}
  .foot-bottom{flex-direction:column;gap:6px}
}

/* roulang page: category2 */
:root{
  --brand-900:#0C3B33;
  --brand-700:#14574A;
  --brand-500:#1E7A65;
  --lime-400:#C6F04D;
  --amber-500:#FF8A3D;
  --ink-900:#0B1F1C;
  --ink-600:#4A5F5B;
  --ink-300:#8FA09B;
  --paper:#F5F7F4;
  --surface:#FFFFFF;
  --line:#E2E8E3;
  --r-s:8px;
  --r-m:14px;
  --r-l:22px;
  --shadow-1:0 1px 2px rgba(11,31,28,.06), 0 10px 26px -14px rgba(11,31,28,.20);
  --shadow-2:0 2px 6px rgba(11,31,28,.08), 0 20px 42px -20px rgba(11,31,28,.30);
  --container:1200px;
  --font-cn:'PingFang SC','Hiragino Sans GB','Microsoft YaHei','Source Han Sans SC','Noto Sans SC',sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{
  margin:0;
  font-family:var(--font-cn);
  font-size:16px;
  line-height:1.85;
  color:var(--ink-900);
  background:var(--paper);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;object-fit:cover}
a{color:var(--brand-700);text-decoration:none;transition:color .22s ease,background-color .22s ease,border-color .22s ease}
a:hover{color:var(--brand-500)}
h1,h2,h3,h4,p,ul,ol,figure{margin:0}
ul,ol{padding:0;list-style:none}
button{font-family:inherit;cursor:pointer;border:none;background:none;color:inherit}
input,textarea,select{font-family:inherit;font-size:15px}
:focus-visible{outline:2px solid var(--lime-400);outline-offset:2px;border-radius:4px}
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 24px}
.section{padding:88px 0}
.section-tight{padding:64px 0}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:12px;letter-spacing:.12em;text-transform:uppercase;
  color:var(--brand-500);font-weight:600;
}
.eyebrow::before{content:"";width:22px;height:2px;background:var(--lime-400);display:block}
h1{font-size:clamp(30px,4vw,46px);font-weight:700;line-height:1.25;letter-spacing:.01em}
h2{font-size:clamp(24px,2.6vw,34px);font-weight:700;line-height:1.3}
h3{font-size:20px;font-weight:600;line-height:1.45}
.lead{font-size:17px;color:var(--ink-600);line-height:1.9}
.muted{color:var(--ink-600)}
.small{font-size:14px}
.head-block{max-width:720px;margin-bottom:44px}
.head-block h2{margin:14px 0 14px}
.head-row{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:44px}
.head-row h2{margin-top:14px}

/* 顶部信息条 */
.topbar{background:var(--brand-900);color:#fff;font-size:12px;letter-spacing:.02em}
.topbar .container{display:flex;align-items:center;justify-content:space-between;gap:18px;min-height:36px}
.topbar-domain{color:rgba(255,255,255,.82);letter-spacing:.06em}
.topbar-mid{color:rgba(255,255,255,.66);text-align:center;flex:1;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.topbar a{color:var(--lime-400);font-weight:600;white-space:nowrap}
.topbar a:hover{color:#fff;text-decoration:underline;text-decoration-thickness:2px;text-underline-offset:3px}

/* 主导航 */
.site-header{position:sticky;top:0;z-index:70;background:var(--surface);border-bottom:1px solid var(--line)}
.nav-inner{display:flex;align-items:center;gap:24px;height:68px}
.logo{display:flex;flex-direction:column;gap:1px;line-height:1.06;flex-shrink:0}
.logo-mark{font-size:20px;font-weight:700;letter-spacing:.08em;color:var(--brand-900)}
.logo-sub{font-size:11px;letter-spacing:.08em;color:var(--ink-600)}
.nav-list{display:flex;align-items:center;gap:2px;margin-left:auto}
.nav-link{
  position:relative;padding:9px 10px;font-size:15px;font-weight:500;
  color:var(--ink-600);border-radius:var(--r-s);white-space:nowrap;
}
.nav-link::after{
  content:"";position:absolute;left:10px;right:10px;bottom:3px;height:2px;
  background:var(--lime-400);transform:scaleX(0);transform-origin:left;
  transition:transform .22s ease;
}
.nav-link:hover{color:var(--brand-700)}
.nav-link:hover::after{transform:scaleX(1)}
.nav-link.is-active{color:var(--brand-900);font-weight:600}
.nav-link.is-active::after{transform:scaleX(1)}
.nav-cta{display:none}
.nav-actions{display:flex;align-items:center;gap:10px;flex-shrink:0}
.icon-btn{
  width:40px;height:40px;border:1px solid var(--line);border-radius:var(--r-s);
  display:inline-flex;align-items:center;justify-content:center;color:var(--ink-600);
  background:var(--surface);transition:all .22s ease;
}
.icon-btn svg{width:19px;height:19px}
.icon-btn:hover{border-color:var(--brand-500);color:var(--brand-700);background:var(--paper)}
.icon-btn:active{transform:translateY(1px)}
.menu-toggle{
  display:none;width:42px;height:40px;border:1px solid var(--line);border-radius:var(--r-s);
  flex-direction:column;align-items:center;justify-content:center;gap:5px;background:var(--surface);
}
.menu-toggle span{display:block;width:18px;height:2px;background:var(--brand-900);border-radius:2px;transition:transform .24s ease,opacity .24s ease}
.menu-toggle[aria-expanded="true"] span:nth-child(1){transform:translateY(7px) rotate(45deg)}
.menu-toggle[aria-expanded="true"] span:nth-child(2){opacity:0}
.menu-toggle[aria-expanded="true"] span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}
.nav-overlay{
  position:fixed;inset:0;background:rgba(11,31,28,.5);opacity:0;visibility:hidden;
  transition:opacity .26s ease,visibility .26s ease;z-index:75;
}
.nav-overlay.is-open{opacity:1;visibility:visible}

/* 按钮 */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 24px;border-radius:var(--r-s);
  font-size:15px;font-weight:600;letter-spacing:.01em;
  transition:background-color .22s ease,color .22s ease,border-color .22s ease,transform .18s ease,box-shadow .22s ease;
  white-space:nowrap;
}
.btn-primary{background:var(--amber-500);color:#fff;box-shadow:0 8px 20px -12px rgba(255,138,61,.9)}
.btn-primary:hover{background:#F0782A;color:#fff;transform:translateY(-2px);box-shadow:0 14px 28px -14px rgba(255,138,61,.95)}
.btn-primary:active{transform:translateY(0)}
.btn-ghost{background:transparent;color:var(--brand-700);border:1.5px solid var(--brand-500)}
.btn-ghost:hover{background:rgba(30,122,101,.08);color:var(--brand-900);transform:translateY(-2px)}
.btn-ghost:active{transform:translateY(0)}
.btn-lime{background:transparent;color:var(--lime-400);font-weight:600}
.btn-lime:hover{color:#fff;text-decoration:underline;text-decoration-thickness:2px;text-underline-offset:4px}
.btn-sm{height:40px;padding:0 18px;font-size:14px}
.btn-nav{height:42px;padding:0 20px;font-size:14px}
.btn[disabled],.btn.is-disabled{opacity:.4;pointer-events:none}
.link-arrow{display:inline-flex;align-items:center;gap:6px;font-size:14px;font-weight:600;color:var(--brand-700)}
.link-arrow::after{content:"→";transition:transform .22s ease}
.link-arrow:hover{text-decoration:underline;text-decoration-thickness:2px;text-decoration-color:var(--lime-400);text-underline-offset:4px}
.link-arrow:hover::after{transform:translateX(4px)}

/* 面包屑 */
.breadcrumb{padding-top:22px}
.breadcrumb ol{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--ink-300)}
.breadcrumb li{display:flex;align-items:center;gap:8px}
.breadcrumb li+li::before{content:"/";color:var(--ink-300)}
.breadcrumb a{color:var(--ink-600)}
.breadcrumb a:hover{color:var(--brand-700)}
.breadcrumb .current{color:var(--brand-900);font-weight:600}

/* Hero */
.page-hero{
  position:relative;margin-top:20px;border-radius:var(--r-l);overflow:hidden;
  background:var(--brand-900) url('/assets/images/backpic/back-2.png') center/cover no-repeat;
  color:#fff;box-shadow:var(--shadow-1);
}
.page-hero::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(104deg,rgba(12,59,51,.95) 0%,rgba(12,59,51,.86) 44%,rgba(12,59,51,.42) 100%);
}
.page-hero-inner{
  position:relative;z-index:1;display:grid;grid-template-columns:1.12fr .88fr;
  gap:44px;align-items:center;padding:56px 48px;
}
.page-hero .eyebrow{color:var(--lime-400)}
.page-hero .eyebrow::before{background:var(--lime-400)}
.page-hero h1{color:#fff;margin:16px 0 18px;max-width:16em}
.page-hero p{color:rgba(255,255,255,.82);font-size:17px;line-height:1.9;max-width:34em}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:30px}
.hero-meta{display:flex;flex-wrap:wrap;gap:22px;margin-top:32px;padding-top:24px;border-top:1px solid rgba(255,255,255,.16)}
.hero-meta div{font-size:13px;color:rgba(255,255,255,.7)}
.hero-meta strong{display:block;font-size:20px;font-weight:700;color:var(--lime-400);letter-spacing:.02em;line-height:1.4}
.hero-figure{position:relative}
.hero-figure img{border-radius:var(--r-m);border:1px solid rgba(255,255,255,.18);aspect-ratio:3/2;width:100%}
.hero-node{position:absolute;left:-10px;bottom:16px;display:flex;gap:6px}
.hero-node span{
  width:30px;height:30px;border-radius:50%;border:1px solid rgba(198,240,77,.55);
  display:inline-flex;align-items:center;justify-content:center;
  font-size:11px;letter-spacing:.06em;color:var(--lime-400);background:rgba(12,59,51,.75);
}

/* 筛选标签 */
.filter-bar{display:flex;flex-wrap:wrap;align-items:center;gap:10px;margin-bottom:28px}
.filter-label{font-size:13px;color:var(--ink-300);letter-spacing:.06em;margin-right:6px}
.chip{
  height:36px;padding:0 16px;border:1px solid var(--line);border-radius:999px;
  background:var(--surface);font-size:13px;color:var(--ink-600);font-weight:500;
  transition:all .22s ease;
}
.chip:hover{border-color:var(--brand-500);color:var(--brand-700)}
.chip.is-on{background:var(--brand-900);border-color:var(--brand-900);color:#fff}
.chip:active{transform:translateY(1px)}

/* 卡片网格 */
.card-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.check-card{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-m);
  padding:26px 24px;display:flex;flex-direction:column;gap:12px;
  transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease;
}
.check-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-2);border-color:var(--brand-500)}
.card-top{display:flex;align-items:center;justify-content:space-between}
.card-num{font-size:12px;font-weight:700;letter-spacing:.12em;color:var(--brand-500)}
.card-icon{
  width:44px;height:44px;border-radius:12px;background:var(--paper);
  display:grid;place-items:center;color:var(--brand-700);
}
.card-icon svg{width:21px;height:21px}
.check-card h3{font-size:18px;color:var(--ink-900)}
.check-card p{font-size:14.5px;color:var(--ink-600);line-height:1.8}
.card-tags{display:flex;flex-wrap:wrap;gap:8px;margin-top:auto;padding-top:8px}
.tag{
  display:inline-flex;align-items:center;height:24px;padding:0 10px;border-radius:999px;
  background:rgba(198,240,77,.35);color:var(--brand-900);
  font-size:11px;letter-spacing:.04em;font-weight:600;
}
.tag-outline{background:transparent;border:1px solid var(--line);color:var(--ink-600);font-weight:500}

/* 校验步骤 */
.steps-panel{display:grid;grid-template-columns:.88fr 1.12fr;gap:52px;align-items:start}
.steps-figure{border-radius:var(--r-m);overflow:hidden;border:1px solid var(--line);background:var(--surface)}
.steps-figure img{width:100%;aspect-ratio:4/3}
.steps-figure figcaption{
  padding:14px 18px;font-size:13px;color:var(--ink-600);
  border-top:1px solid var(--line);background:var(--surface);
}
.step-list{display:flex;flex-direction:column}
.step-item{display:grid;grid-template-columns:56px 1fr;gap:18px;padding:20px 0;border-bottom:1px dashed var(--line)}
.step-item:first-child{padding-top:0}
.step-item:last-child{border-bottom:none;padding-bottom:0}
.step-index{
  width:44px;height:44px;border-radius:50%;border:1.5px solid var(--amber-500);
  display:grid;place-items:center;font-size:14px;font-weight:700;color:var(--amber-500);
  letter-spacing:.04em;background:var(--surface);
}
.step-item h3{font-size:17px;margin-bottom:4px}
.step-item p{font-size:14.5px;color:var(--ink-600);line-height:1.8}

/* 适用场景 */
.scene-panel{background:var(--surface);border:1px solid var(--line);border-radius:var(--r-l);padding:12px 32px}
.scene-row{
  display:grid;grid-template-columns:200px 1fr;gap:28px;align-items:start;
  padding:26px 0;border-bottom:1px solid var(--line);
}
.scene-row:last-child{border-bottom:none}
.scene-row h3{display:flex;align-items:center;gap:10px;font-size:17px}
.scene-row h3::before{content:"";width:3px;height:18px;background:var(--lime-400);border-radius:2px;display:block}
.scene-row p{font-size:14.5px;color:var(--ink-600);line-height:1.85}

/* 误判对照 */
.compare-grid{display:grid;grid-template-columns:1fr 1fr;gap:0;border:1px solid var(--line);border-radius:var(--r-l);overflow:hidden;background:var(--surface)}
.compare-col{padding:30px 28px}
.compare-col:first-child{border-right:1px solid var(--line);background:#FBFBF9}
.compare-title{display:flex;align-items:center;gap:10px;font-size:15px;font-weight:700;color:var(--brand-900);margin-bottom:18px}
.compare-title .dot{width:10px;height:10px;border-radius:50%;background:var(--amber-500)}
.compare-col:last-child .compare-title .dot{background:var(--brand-500)}
.compare-list li{display:grid;grid-template-columns:24px 1fr;gap:12px;padding:12px 0;border-bottom:1px dashed var(--line);font-size:14.5px;color:var(--ink-600);line-height:1.75}
.compare-list li:last-child{border-bottom:none}
.compare-list .mark{color:var(--ink-300);font-weight:700}
.compare-col:last-child .mark{color:var(--brand-500)}

/* FAQ */
.faq-layout{display:grid;grid-template-columns:.72fr 1.28fr;gap:56px;align-items:start}
.faq-side p{font-size:15px;color:var(--ink-600);margin-top:16px;line-height:1.85}
.faq-side .btn{margin-top:26px}
.faq-list{display:flex;flex-direction:column;gap:12px}
.faq-item{
  background:var(--surface);border:1px solid var(--line);border-left:3px solid var(--lime-400);
  border-radius:var(--r-m);overflow:hidden;transition:box-shadow .22s ease,border-color .22s ease;
}
.faq-item[open]{box-shadow:var(--shadow-1)}
.faq-item summary{
  list-style:none;cursor:pointer;padding:18px 52px 18px 22px;position:relative;
  font-size:16px;font-weight:600;color:var(--ink-900);line-height:1.6;
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::after{
  content:"";position:absolute;right:22px;top:50%;width:9px;height:9px;
  border-right:2px solid var(--brand-500);border-bottom:2px solid var(--brand-500);
  transform:translateY(-70%) rotate(45deg);transition:transform .24s ease;
}
.faq-item[open] summary::after{transform:translateY(-30%) rotate(-135deg)}
.faq-item summary:hover{color:var(--brand-700)}
.faq-answer{padding:0 22px 20px;font-size:15px;color:var(--ink-600);line-height:1.85;border-top:1px dashed var(--line);margin-top:-2px;padding-top:16px}

/* CTA + 表单 */
.cta-band{
  background:var(--brand-900);border-radius:var(--r-l);padding:46px 48px;color:#fff;
  display:flex;align-items:center;justify-content:space-between;gap:32px;
  position:relative;overflow:hidden;
}
.cta-band::before{
  content:"";position:absolute;right:-60px;top:-60px;width:260px;height:260px;
  background-image:radial-gradient(rgba(198,240,77,.35) 1px,transparent 1px);
  background-size:14px 14px;opacity:.5;
}
.cta-band h2{color:#fff;font-size:clamp(22px,2.2vw,28px);position:relative}
.cta-band p{color:rgba(255,255,255,.75);font-size:15px;margin-top:10px;max-width:36em;position:relative}
.cta-band .btn{position:relative}

.contact-grid{display:grid;grid-template-columns:1.15fr .85fr;gap:28px;align-items:start}
.panel{background:var(--surface);border:1px solid var(--line);border-radius:var(--r-l);padding:30px 28px}
.panel h3{font-size:19px;margin-bottom:6px}
.panel .panel-note{font-size:14px;color:var(--ink-600);margin-bottom:22px}
.form-row{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.field{display:flex;flex-direction:column;gap:8px;margin-bottom:16px}
.field label{font-size:13px;font-weight:600;color:var(--ink-600);letter-spacing:.02em}
.field input,.field select,.field textarea{
  height:46px;padding:0 14px;border:1px solid var(--line);border-radius:var(--r-s);
  background:var(--surface);color:var(--ink-900);transition:border-color .2s ease,box-shadow .2s ease;
}
.field textarea{height:112px;padding:12px 14px;line-height:1.7;resize:vertical}
.field input:focus,.field select:focus,.field textarea:focus{
  outline:none;border-color:var(--brand-500);box-shadow:0 0 0 3px rgba(198,240,77,.55);
}
.field .hint{font-size:12px;color:var(--ink-300)}
.form-actions{display:flex;align-items:center;gap:16px;flex-wrap:wrap;margin-top:6px}
.form-note{
  display:none;margin-top:18px;padding:12px 16px;border-radius:var(--r-s);
  background:rgba(198,240,77,.28);border:1px solid rgba(198,240,77,.7);
  font-size:14px;color:var(--brand-900);
}
.form-note.is-show{display:block}
.contact-info li{display:flex;gap:12px;padding:14px 0;border-bottom:1px dashed var(--line);font-size:14.5px;color:var(--ink-600)}
.contact-info li:last-child{border-bottom:none}
.contact-info span:first-child{color:var(--brand-500);font-weight:700;font-size:13px;min-width:64px}
.notice-box{
  margin-top:20px;padding:16px 18px;border-radius:var(--r-m);
  background:var(--paper);border:1px dashed var(--line);font-size:13.5px;color:var(--ink-600);line-height:1.8;
}

/* 页脚 */
.site-footer{background:var(--brand-900);color:rgba(255,255,255,.72);margin-top:88px;padding-top:64px}
.foot-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:40px;padding-bottom:48px}
.foot-brand .logo-mark{color:#fff}
.foot-brand .logo-sub{color:rgba(255,255,255,.6)}
.foot-desc{font-size:14px;line-height:1.85;margin-top:18px;color:rgba(255,255,255,.62);max-width:32em}
.foot-title{font-size:13px;letter-spacing:.1em;color:var(--lime-400);font-weight:600;margin-bottom:18px}
.foot-links li,.foot-contact li{margin-bottom:11px;font-size:14px;color:rgba(255,255,255,.66)}
.foot-links a{color:rgba(255,255,255,.66)}
.foot-links a:hover{color:var(--lime-400);text-decoration:underline;text-decoration-thickness:2px;text-underline-offset:4px}
.foot-bottom{
  border-top:1px solid rgba(255,255,255,.08);padding:22px 0;display:flex;
  align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:13px;color:rgba(255,255,255,.52);
}

/* 响应式 */
@media (max-width:1079px){
  .nav-list{
    position:fixed;top:0;right:0;height:100vh;width:min(330px,85vw);
    background:var(--surface);flex-direction:column;align-items:stretch;
    padding:96px 20px 28px;gap:0;margin-left:0;z-index:80;
    box-shadow:var(--shadow-2);overflow-y:auto;
    transform:translateX(102%);transition:transform .28s ease;
  }
  .nav-list.is-open{transform:translateX(0)}
  .nav-link{padding:15px 12px;border-bottom:1px solid var(--line);border-radius:0;font-size:15px}
  .nav-link::after{display:none}
  .nav-link.is-active{background:var(--paper);color:var(--brand-900)}
  .nav-cta{display:flex;margin-top:18px;justify-content:center;border-bottom:none;background:var(--amber-500);color:#fff;border-radius:var(--r-s);font-weight:600}
  .nav-cta:hover{background:#F0782A;color:#fff}
  .menu-toggle{display:flex}
  .btn-nav{display:none}
  .card-grid{grid-template-columns:repeat(2,1fr)}
  .steps-panel{grid-template-columns:1fr;gap:34px}
  .faq-layout{grid-template-columns:1fr;gap:32px}
  .contact-grid{grid-template-columns:1fr}
  .foot-grid{grid-template-columns:1fr 1fr;gap:34px}
}
@media (max-width:860px){
  .page-hero-inner{grid-template-columns:1fr;gap:32px;padding:44px 32px}
  .hero-figure{order:-1}
  .cta-band{flex-direction:column;align-items:flex-start;padding:38px 32px}
  .compare-grid{grid-template-columns:1fr}
  .compare-col:first-child{border-right:none;border-bottom:1px solid var(--line)}
}
@media (max-width:768px){
  .section{padding:56px 0}
  .container{padding:0 18px}
  .topbar-mid{display:none}
  .head-row{flex-direction:column;align-items:flex-start;gap:14px;margin-bottom:30px}
  .scene-panel{padding:8px 22px}
  .scene-row{grid-template-columns:1fr;gap:8px;padding:20px 0}
  .card-grid{grid-template-columns:1fr}
  .form-row{grid-template-columns:1fr}
  .panel,.cta-band{border-radius:var(--r-m)}
  .site-footer{margin-top:56px;padding-top:48px}
}
@media (max-width:520px){
  .container{padding:0 14px}
  body{font-size:15.5px}
  .page-hero{border-radius:var(--r-m)}
  .page-hero-inner{padding:34px 22px}
  .hero-actions .btn{width:100%}
  .foot-grid{grid-template-columns:1fr;gap:28px}
  .foot-bottom{flex-direction:column;align-items:flex-start;gap:8px}
  .panel{padding:24px 20px}
  .cta-band{padding:30px 22px}
}

/* roulang page: category4 */
:root{
  --brand-900:#0C3B33;
  --brand-700:#14574A;
  --brand-500:#1E7A65;
  --lime-400:#C6F04D;
  --amber-500:#FF8A3D;
  --amber-600:#EF7527;
  --ink-900:#0B1F1C;
  --ink-600:#4A5F5B;
  --ink-300:#8FA09B;
  --paper:#F5F7F4;
  --surface:#FFFFFF;
  --line:#E2E8E3;
  --r-s:8px;
  --r-m:14px;
  --r-l:22px;
  --shadow-1:0 1px 2px rgba(11,31,28,.06),0 10px 26px -14px rgba(11,31,28,.20);
  --shadow-2:0 2px 6px rgba(11,31,28,.08),0 18px 40px -18px rgba(11,31,28,.28);
  --container:1200px;
  --font-cn:'PingFang SC','Hiragino Sans GB','Microsoft YaHei','Source Han Sans SC','Noto Sans SC',sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  background:var(--paper);
  color:var(--ink-900);
  font-family:var(--font-cn);
  font-size:16px;
  line-height:1.85;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;height:auto}
a{color:var(--brand-500);text-decoration:none;transition:color .22s ease,background-color .22s ease,border-color .22s ease}
a:hover{color:var(--brand-700);text-decoration:underline;text-decoration-color:var(--lime-400);text-decoration-thickness:2px;text-underline-offset:4px}
h1,h2,h3,h4,p,ul,ol,figure,blockquote{margin:0}
ul,ol{padding:0;list-style:none}
button,input,select,textarea{font:inherit;color:inherit}
button{cursor:pointer;border:0;background:none}
:focus-visible{outline:2px solid var(--lime-400);outline-offset:2px;border-radius:4px}
::selection{background:var(--lime-400);color:var(--brand-900)}

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

/* ---------- 顶部信息条 ---------- */
.topbar{background:var(--brand-900);color:#fff;font-size:12px;letter-spacing:.02em}
.topbar-inner{display:flex;align-items:center;justify-content:space-between;gap:16px;height:36px;line-height:36px}
.topbar-site{color:rgba(255,255,255,.72);letter-spacing:.08em}
.topbar-tip{color:rgba(255,255,255,.86);text-align:center;flex:1;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.topbar-link{color:var(--lime-400);white-space:nowrap}
.topbar-link:hover{color:var(--lime-400);text-decoration:underline}

/* ---------- 主导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  background:var(--surface);
  border-bottom:1px solid var(--line);
}
.nav-inner{display:flex;align-items:center;gap:28px;height:68px}
.logo{display:flex;align-items:baseline;gap:8px;color:var(--ink-900);text-decoration:none;flex-shrink:0}
.logo:hover{text-decoration:none;color:var(--ink-900)}
.logo-mark{
  font-size:24px;font-weight:800;letter-spacing:-.02em;
  color:var(--brand-900);
  background:linear-gradient(180deg,var(--lime-400),var(--lime-400)) no-repeat left 88% / 100% 6px;
  padding-bottom:2px;
}
.logo-sub{font-size:11px;letter-spacing:.08em;color:var(--ink-600);font-weight:500}
.nav-list{display:flex;align-items:center;gap:6px;margin-left:auto;flex-wrap:nowrap}
.nav-link{
  position:relative;
  display:inline-block;
  padding:10px 12px;
  font-size:15px;font-weight:500;color:var(--ink-600);
  border-radius:var(--r-s);
  white-space:nowrap;
}
.nav-link::after{
  content:"";position:absolute;left:12px;right:12px;bottom:4px;height:2px;border-radius:2px;
  background:var(--lime-400);transform:scaleX(0);transform-origin:left;transition:transform .22s ease;
}
.nav-link:hover{color:var(--brand-700);text-decoration:none;background:var(--paper)}
.nav-link:hover::after{transform:scaleX(1)}
.nav-link.is-active{color:var(--brand-700);font-weight:600}
.nav-link.is-active::after{transform:scaleX(1)}
.nav-actions{display:flex;align-items:center;gap:12px;flex-shrink:0}
.icon-btn{
  width:38px;height:38px;border-radius:50%;
  display:inline-flex;align-items:center;justify-content:center;
  color:var(--ink-600);border:1px solid var(--line);background:var(--surface);
  transition:.22s ease;
}
.icon-btn svg{width:18px;height:18px}
.icon-btn:hover{color:var(--brand-700);border-color:var(--brand-500);background:var(--paper)}
.icon-btn:active{transform:translateY(1px)}
.menu-toggle{
  display:none;width:42px;height:42px;border-radius:var(--r-s);
  border:1px solid var(--line);background:var(--surface);
  flex-direction:column;justify-content:center;align-items:center;gap:5px;
}
.menu-toggle span{display:block;width:20px;height:2px;background:var(--ink-900);border-radius:2px;transition:.22s ease}
.menu-toggle[aria-expanded="true"] span:nth-child(1){transform:translateY(7px) rotate(45deg)}
.menu-toggle[aria-expanded="true"] span:nth-child(2){opacity:0}
.menu-toggle[aria-expanded="true"] span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:46px;padding:0 22px;border-radius:var(--r-s);
  font-size:15px;font-weight:600;line-height:1;white-space:nowrap;
  transition:background-color .22s ease,color .22s ease,border-color .22s ease,transform .12s ease,box-shadow .22s ease;
}
.btn:hover{text-decoration:none}
.btn-primary{background:var(--amber-500);color:#fff;box-shadow:0 10px 22px -14px rgba(239,117,39,.85)}
.btn-primary:hover{background:var(--amber-600);color:#fff;transform:translateY(-2px)}
.btn-primary:active{transform:translateY(1px);box-shadow:none}
.btn-ghost{background:transparent;color:var(--brand-700);border:1.5px solid var(--brand-500)}
.btn-ghost:hover{background:var(--brand-900);border-color:var(--brand-900);color:#fff;transform:translateY(-2px)}
.btn-ghost:active{transform:translateY(1px)}
.btn-lime{background:var(--lime-400);color:var(--brand-900)}
.btn-lime:hover{background:#d3f56d;color:var(--brand-900);transform:translateY(-2px)}
.btn[disabled],.btn.is-disabled{opacity:.4;pointer-events:none}
.btn-lg{height:52px;padding:0 28px;font-size:16px}

/* ---------- 通用标签 / 徽章 ---------- */
.badge{
  display:inline-flex;align-items:center;gap:6px;
  padding:4px 12px;border-radius:999px;
  background:var(--lime-400);color:var(--brand-900);
  font-size:11px;font-weight:700;letter-spacing:.04em;line-height:1.6;
}
.badge-soft{background:var(--paper);color:var(--brand-700);border:1px solid var(--line);font-weight:600}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:12px;letter-spacing:.1em;color:var(--brand-700);font-weight:700;
}
.eyebrow::before{content:"";width:16px;height:2px;background:var(--amber-500);border-radius:2px}

/* ---------- 面包屑 ---------- */
.crumb-bar{padding:18px 0 0}
.breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--ink-300)}
.breadcrumb a{color:var(--ink-600);font-weight:500}
.breadcrumb a:hover{color:var(--brand-700)}
.breadcrumb span[aria-current]{color:var(--brand-900);font-weight:600}

/* ---------- Hero ---------- */
.page-hero{padding:26px 0 20px}
.hero-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:48px;align-items:center;margin-top:22px}
.hero-copy h1{font-size:clamp(30px,4vw,46px);line-height:1.25;font-weight:700;letter-spacing:-.01em;margin:16px 0 0}
.hero-lead{margin-top:18px;font-size:17px;color:var(--ink-600);max-width:560px}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:28px}
.hero-meta{display:flex;flex-wrap:wrap;gap:10px;margin-top:26px}
.hero-meta li{
  font-size:13px;color:var(--brand-700);font-weight:600;
  background:var(--surface);border:1px solid var(--line);border-radius:999px;
  padding:6px 14px;
}
.hero-media{position:relative;border-radius:var(--r-l);overflow:hidden;box-shadow:var(--shadow-2);border:1px solid var(--line);background:var(--paper)}
.hero-media img{width:100%;aspect-ratio:3/2;object-fit:cover}
.hero-media figcaption{
  position:absolute;left:0;right:0;bottom:0;
  padding:38px 22px 18px;color:#fff;font-size:13px;
  background:linear-gradient(180deg,rgba(12,59,51,0),rgba(12,59,51,.86));
}
.node-deco{position:absolute;left:22px;bottom:58px;display:flex;gap:10px}
.node-deco i{
  width:34px;height:34px;border-radius:50%;
  display:inline-flex;align-items:center;justify-content:center;
  font-size:12px;font-weight:700;font-style:normal;
  color:var(--brand-900);background:var(--lime-400);
  border:2px solid rgba(255,255,255,.9);
}
.node-deco i:nth-child(2){background:rgba(255,255,255,.92);color:var(--brand-700)}
.node-deco i:nth-child(3){background:rgba(255,255,255,.55);color:var(--brand-700)}
.hero-dots{
  position:absolute;right:-30px;top:-30px;width:150px;height:150px;pointer-events:none;
  background-image:radial-gradient(rgba(198,240,77,.45) 2px,transparent 2px);
  background-size:14px 14px;opacity:.6;
}

/* ---------- 板块 ---------- */
.section{padding:88px 0}
.section-tight{padding:64px 0}
.section-head{max-width:720px}
.section-head.center{margin:0 auto;text-align:center}
.section-head h2{font-size:clamp(24px,2.6vw,34px);line-height:1.3;font-weight:700;margin-top:14px}
.section-head p{margin-top:16px;color:var(--ink-600)}
.section-head.center p{margin-left:auto;margin-right:auto}
.divider{height:1px;background:var(--line);border:0;margin:0}

/* ---------- 对照双栏卡 ---------- */
.compare-grid{display:grid;grid-template-columns:1fr 1fr;gap:26px;margin-top:44px}
.compare-card{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-m);
  padding:30px;box-shadow:var(--shadow-1);position:relative;overflow:hidden;
  transition:box-shadow .22s ease,transform .22s ease;
  display:flex;flex-direction:column;
}
.compare-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-2)}
.compare-card::before{content:"";position:absolute;left:0;top:0;bottom:0;width:4px;background:var(--brand-500)}
.compare-card.is-alt::before{background:var(--amber-500)}
.compare-head{display:flex;align-items:center;gap:12px;padding-bottom:18px;border-bottom:1px dashed var(--line)}
.compare-icon{
  width:44px;height:44px;border-radius:12px;flex-shrink:0;
  display:inline-flex;align-items:center;justify-content:center;
  background:var(--paper);color:var(--brand-700);border:1px solid var(--line);
}
.compare-icon svg{width:22px;height:22px}
.compare-head h3{font-size:20px;font-weight:600}
.compare-head p{font-size:13px;color:var(--ink-300);margin-top:2px}
.compare-list{margin-top:20px;display:grid;gap:14px}
.compare-list li{display:flex;gap:12px;font-size:15px;color:var(--ink-600)}
.compare-list li::before{
  content:"";flex:0 0 8px;width:8px;height:8px;margin-top:9px;border-radius:50%;
  background:var(--lime-400);box-shadow:0 0 0 3px rgba(198,240,77,.28);
}
.compare-foot{margin-top:24px;padding-top:18px;border-top:1px solid var(--line);font-size:13px;color:var(--ink-300)}

/* ---------- 深色必查项 ---------- */
.dark-band{background:var(--brand-900);color:#fff;position:relative;overflow:hidden}
.dark-band::after{
  content:"";position:absolute;right:-60px;top:-60px;width:280px;height:280px;
  background-image:radial-gradient(rgba(198,240,77,.30) 2px,transparent 2px);
  background-size:16px 16px;opacity:.7;pointer-events:none;
}
.dark-inner{display:grid;grid-template-columns:.85fr 1.15fr;gap:56px;align-items:start;position:relative;z-index:1}
.dark-copy h2{font-size:clamp(24px,2.6vw,34px);line-height:1.3;font-weight:700;color:#fff;margin-top:14px}
.dark-copy p{margin-top:16px;color:rgba(255,255,255,.72);font-size:15px}
.dark-copy .eyebrow{color:var(--lime-400)}
.dark-copy .eyebrow::before{background:var(--lime-400)}
.node-list{display:grid;gap:18px}
.node-list li{
  display:flex;gap:18px;padding:22px;
  background:rgba(255,255,255,.06);
  border:1px solid rgba(255,255,255,.12);
  border-radius:var(--r-m);
  transition:background-color .22s ease,transform .22s ease;
}
.node-list li:hover{background:rgba(255,255,255,.1);transform:translateY(-2px)}
.node-num{
  flex:0 0 40px;height:40px;border-radius:50%;
  display:inline-flex;align-items:center;justify-content:center;
  font-size:14px;font-weight:700;color:var(--brand-900);background:var(--lime-400);
}
.node-list h3{font-size:17px;font-weight:600;color:#fff}
.node-list p{margin-top:6px;font-size:14px;color:rgba(255,255,255,.72);line-height:1.8}

/* ---------- 表格 ---------- */
.table-wrap{
  margin-top:40px;background:var(--surface);border:1px solid var(--line);
  border-radius:var(--r-m);overflow:hidden;box-shadow:var(--shadow-1);
}
.table-scroll{overflow-x:auto}
table.spec{width:100%;border-collapse:collapse;min-width:720px}
table.spec caption{
  text-align:left;padding:20px 24px 0;font-size:13px;color:var(--ink-300);
}
table.spec th,table.spec td{padding:16px 24px;text-align:left;font-size:14.5px;vertical-align:top}
table.spec thead th{
  background:var(--brand-900);color:#fff;font-weight:600;font-size:13px;
  letter-spacing:.04em;white-space:nowrap;
}
table.spec tbody tr:nth-child(odd){background:var(--paper)}
table.spec tbody tr{border-top:1px solid var(--line);transition:background-color .2s ease}
table.spec tbody tr:hover{background:#eef4ef}
table.spec td:first-child{font-weight:600;color:var(--ink-900);white-space:nowrap}
table.spec td{color:var(--ink-600)}
.tip-row{
  display:flex;gap:14px;align-items:flex-start;
  margin-top:20px;padding:18px 22px;border-radius:var(--r-m);
  background:rgba(198,240,77,.18);border:1px solid rgba(198,240,77,.55);
  font-size:14px;color:var(--brand-900);
}
.tip-row strong{font-weight:700}

/* ---------- 图集 ---------- */
.gallery{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;margin-top:44px}
.gallery figure{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-m);
  overflow:hidden;box-shadow:var(--shadow-1);
  transition:transform .22s ease,box-shadow .22s ease;
}
.gallery figure:hover{transform:translateY(-3px);box-shadow:var(--shadow-2)}
.gallery img{width:100%;aspect-ratio:16/10;object-fit:cover}
.gallery figcaption{padding:18px 20px 22px}
.gallery figcaption h3{font-size:16px;font-weight:600}
.gallery figcaption p{margin-top:8px;font-size:14px;color:var(--ink-600)}

/* ---------- FAQ ---------- */
.faq-layout{display:grid;grid-template-columns:.8fr 1.2fr;gap:56px;align-items:start}
.faq-side h2{font-size:clamp(24px,2.6vw,32px);font-weight:700;line-height:1.3;margin-top:14px}
.faq-side p{margin-top:16px;color:var(--ink-600);font-size:15px}
.faq-side .btn{margin-top:26px}
.faq-list{display:grid;gap:14px}
.faq-item{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-m);
  border-left:3px solid var(--lime-400);overflow:hidden;
  transition:box-shadow .22s ease,border-color .22s ease;
}
.faq-item:hover{box-shadow:var(--shadow-1)}
.faq-item summary{
  list-style:none;cursor:pointer;
  display:flex;align-items:flex-start;justify-content:space-between;gap:16px;
  padding:20px 22px;font-size:16px;font-weight:600;color:var(--ink-900);
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::after{
  content:"";flex:0 0 10px;width:10px;height:10px;margin-top:8px;
  border-right:2px solid var(--brand-500);border-bottom:2px solid var(--brand-500);
  transform:rotate(45deg);transition:transform .22s ease;
}
.faq-item[open] summary::after{transform:rotate(-135deg)}
.faq-item[open] summary{color:var(--brand-700)}
.faq-body{padding:0 22px 22px;font-size:15px;color:var(--ink-600);line-height:1.85}

/* ---------- CTA / 表单 ---------- */
.cta-section{padding:88px 0}
.cta-grid{display:grid;grid-template-columns:1.15fr .85fr;gap:32px;align-items:start}
.panel{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-l);
  padding:34px;box-shadow:var(--shadow-1);
}
.panel h2{font-size:clamp(22px,2.2vw,28px);font-weight:700;line-height:1.35}
.panel .panel-sub{margin-top:12px;font-size:15px;color:var(--ink-600)}
.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:18px;margin-top:26px}
.field{display:flex;flex-direction:column;gap:8px}
.field.full{grid-column:1 / -1}
.field label{font-size:13px;font-weight:600;color:var(--ink-600);letter-spacing:.02em}
.field input,.field select,.field textarea{
  width:100%;background:var(--surface);border:1px solid var(--line);border-radius:var(--r-s);
  padding:0 14px;height:46px;font-size:15px;color:var(--ink-900);transition:.2s ease;
}
.field textarea{height:120px;padding:12px 14px;resize:vertical;line-height:1.7}
.field input:hover,.field select:hover,.field textarea:hover{border-color:var(--brand-500)}
.field input:focus,.field select:focus,.field textarea:focus{
  outline:none;border-color:var(--brand-500);box-shadow:0 0 0 3px rgba(198,240,77,.45);
}
.form-actions{display:flex;flex-wrap:wrap;align-items:center;gap:14px;margin-top:26px}
.form-note{font-size:13px;color:var(--ink-300)}
.form-alert{
  display:none;margin-top:20px;padding:14px 18px;border-radius:var(--r-s);
  background:rgba(198,240,77,.22);border:1px solid rgba(198,240,77,.7);
  color:var(--brand-900);font-size:14px;
}
.form-alert.is-visible{display:block}
.info-card{background:var(--brand-900);color:#fff;border-radius:var(--r-l);padding:34px;position:relative;overflow:hidden}
.info-card::after{
  content:"";position:absolute;left:-40px;bottom:-40px;width:180px;height:180px;
  background-image:radial-gradient(rgba(198,240,77,.28) 2px,transparent 2px);
  background-size:14px 14px;opacity:.8;
}
.info-card h3{font-size:19px;font-weight:600;color:#fff}
.info-card p{margin-top:12px;font-size:14px;color:rgba(255,255,255,.72);line-height:1.85}
.info-list{margin-top:24px;display:grid;gap:16px;position:relative;z-index:1}
.info-list li{display:flex;gap:12px;align-items:flex-start;font-size:14.5px;color:rgba(255,255,255,.9)}
.info-list li span{
  flex:0 0 20px;height:20px;margin-top:4px;border-radius:50%;
  background:var(--lime-400);
}
.info-card .info-foot{
  margin-top:26px;padding-top:18px;border-top:1px solid rgba(255,255,255,.14);
  font-size:13px;color:rgba(255,255,255,.6);position:relative;z-index:1;
}

/* ---------- 页脚前通栏 ---------- */
.foot-cta{background:var(--brand-700);color:#fff}
.foot-cta-inner{
  display:flex;align-items:center;justify-content:space-between;gap:28px;
  padding:40px 0;flex-wrap:wrap;
}
.foot-cta h2{font-size:clamp(20px,2vw,26px);font-weight:700;color:#fff}
.foot-cta p{margin-top:8px;font-size:14px;color:rgba(255,255,255,.72)}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--brand-900);color:rgba(255,255,255,.72);padding:64px 0 0}
.foot-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:40px}
.foot-brand .logo-mark{color:#fff;background:none}
.foot-brand .logo-sub{color:rgba(255,255,255,.6)}
.foot-brand .logo:hover{color:#fff}
.foot-desc{margin-top:18px;font-size:14px;color:rgba(255,255,255,.66);line-height:1.85;max-width:320px}
.foot-title{
  font-size:13px;letter-spacing:.08em;color:var(--lime-400);font-weight:700;margin-bottom:18px;
}
.foot-links li,.foot-contact li{margin-bottom:12px;font-size:14px}
.foot-links a{color:rgba(255,255,255,.78)}
.foot-links a:hover{color:var(--lime-400);text-decoration:underline}
.foot-contact li{color:rgba(255,255,255,.66)}
.foot-bottom{
  margin-top:52px;padding:22px 0;
  border-top:1px solid rgba(255,255,255,.08);
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:13px;color:rgba(255,255,255,.5);
}

/* ---------- 移动端遮罩 ---------- */
.nav-scrim{
  position:fixed;inset:0;background:rgba(11,31,28,.5);
  opacity:0;visibility:hidden;transition:.24s ease;z-index:70;
}
.nav-scrim.is-open{opacity:1;visibility:visible}

/* ---------- 响应式 ---------- */
@media (max-width:1279px){
  .hero-grid{gap:36px}
}
@media (max-width:1023px){
  .section{padding:64px 0}
  .section-tight{padding:52px 0}
  .cta-section{padding:64px 0}
  .hero-grid{grid-template-columns:1fr;gap:32px}
  .hero-media{order:-1}
  .hero-lead{max-width:none}
  .dark-inner{grid-template-columns:1fr;gap:32px}
  .faq-layout{grid-template-columns:1fr;gap:32px}
  .cta-grid{grid-template-columns:1fr}
  .foot-grid{grid-template-columns:1fr 1fr;gap:32px}
  .gallery{grid-template-columns:1fr 1fr}
}
@media (max-width:900px){
  .menu-toggle{display:flex}
  .nav-list{
    position:fixed;top:0;right:0;bottom:0;width:290px;max-width:86vw;
    background:var(--surface);z-index:80;
    flex-direction:column;align-items:stretch;gap:4px;
    padding:88px 20px 28px;margin:0;
    transform:translateX(102%);transition:transform .28s ease;
    box-shadow:-18px 0 40px -22px rgba(11,31,28,.45);
    overflow-y:auto;
  }
  .nav-list.is-open{transform:translateX(0)}
  .nav-link{padding:14px 12px;font-size:16px;border-radius:var(--r-s)}
  .nav-link::after{left:12px;right:auto;width:24px;bottom:9px}
  .nav-actions .btn-primary{display:none}
  .compare-grid{grid-template-columns:1fr}
  .form-grid{grid-template-columns:1fr}
}
@media (max-width:767px){
  .container{padding:0 18px}
  .topbar-tip{display:none}
  .topbar-inner{justify-content:space-between}
  .section{padding:52px 0}
  .cta-section{padding:56px 0}
  .panel{padding:24px}
  .info-card{padding:26px}
  .hero-copy h1{font-size:30px}
  .gallery{grid-template-columns:1fr}
  .foot-grid{grid-template-columns:1fr;gap:28px}
  .foot-bottom{flex-direction:column;align-items:flex-start;gap:8px}
  .foot-cta-inner{padding:34px 0}
  .compare-card{padding:24px}
}
@media (max-width:480px){
  .container{padding:0 14px}
  .hero-actions .btn{width:100%}
  .hero-meta li{font-size:12px}
  .section{padding:46px 0}
  .node-list li{padding:18px;gap:14px}
  .logo-sub{display:none}
}