/* roulang page: index */
:root{
  --brand-600:#0E7A5F;
  --brand-700:#0B6B54;
  --brand-800:#083F32;
  --brand-500:#17A277;
  --brand-400:#34C38F;
  --grad-brand:linear-gradient(135deg,#0E7A5F 0%,#17A277 52%,#34C38F 100%);
  --accent-500:#FF8A3D;
  --accent-600:#F2701F;
  --accent-50:#FFF3EA;
  --ink-900:#16241F;
  --ink-700:#33443E;
  --ink-500:#5C6B66;
  --surface:#FFFFFF;
  --paper:#F5F7F3;
  --paper-2:#EDF2EC;
  --line:#E2E8E3;
  --r-lg:24px;
  --r-md:18px;
  --r-sm:12px;
  --r-pill:999px;
  --shadow-1:0 2px 4px rgba(8,63,50,.05),0 16px 32px -20px rgba(8,63,50,.22);
  --shadow-2:0 6px 12px rgba(8,63,50,.08),0 28px 48px -24px rgba(8,63,50,.30);
  --ease:cubic-bezier(.2,.7,.3,1);
  --container:1200px;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:-apple-system,"PingFang SC","Hiragino Sans GB","Source Han Sans SC","Microsoft YaHei",sans-serif;
  font-size:16px;line-height:1.85;color:var(--ink-700);background:var(--paper);
  overflow-x:hidden;
  -webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4,p,ul,ol,figure,blockquote{margin:0;}
ul,ol{padding-left:1.15em;}
img{max-width:100%;display:block;border-radius:inherit;}
a{color:var(--brand-600);text-decoration:none;transition:color .18s var(--ease);}
a:hover{color:var(--brand-700);}
button{font-family:inherit;}
:focus-visible{outline:2px solid var(--accent-500);outline-offset:2px;border-radius:6px;}
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 32px;}
.section{padding:104px 0;}
.section--tight{padding:76px 0;}
.section--paper2{background:var(--paper-2);}
.kw{white-space:nowrap;}

/* 眉标 */
.eyebrow{
  display:inline-flex;align-items:center;gap:.55em;
  font-size:.8125rem;font-weight:700;letter-spacing:.08em;color:var(--brand-600);
  text-transform:none;margin-bottom:14px;
}
.eyebrow::before{content:"";width:3px;height:14px;border-radius:2px;background:var(--grad-brand);}
.section-head{max-width:660px;}
.section-head h2{
  font-size:clamp(1.5rem,2.6vw,2.125rem);line-height:1.25;font-weight:700;color:var(--ink-900);
  letter-spacing:-.01em;
}
.section-head h2::after{
  content:"";display:block;width:52px;height:4px;border-radius:4px;background:var(--grad-brand);margin-top:16px;
}
.section-head p{margin-top:16px;color:var(--ink-500);font-size:1rem;line-height:1.85;max-width:44em;}
.section-head--row{display:flex;align-items:flex-end;justify-content:space-between;gap:28px;flex-wrap:wrap;max-width:none;}

/* 按钮 */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:9px;
  padding:14px 28px;border-radius:var(--r-pill);font-size:1rem;font-weight:600;line-height:1.2;
  border:1.5px solid transparent;cursor:pointer;transition:all .2s var(--ease);
  white-space:nowrap;
}
.btn-primary{background:var(--grad-brand);color:#fff;box-shadow:0 10px 22px -12px rgba(14,122,95,.85);}
.btn-primary:hover{color:#fff;filter:brightness(1.06);transform:translateY(-2px);box-shadow:var(--shadow-2);}
.btn-primary:active{transform:translateY(0);filter:brightness(.96);}
.btn-ghost{background:transparent;border-color:var(--brand-600);color:var(--brand-700);}
.btn-ghost:hover{background:var(--paper-2);border-color:var(--accent-500);color:var(--accent-600);transform:translateY(-2px);}
.btn-ghost:active{transform:translateY(0);}
.btn-sm{padding:10px 20px;font-size:.9375rem;}
.btn-block{width:100%;}
.link-arrow{display:inline-flex;align-items:center;gap:8px;font-weight:600;font-size:.9375rem;color:var(--brand-600);}
.link-arrow i{transition:transform .2s var(--ease);}
.link-arrow:hover{color:var(--brand-700);}
.link-arrow:hover i{transform:translateX(4px);}

/* 头部导航 */
.site-header{
  position:sticky;top:0;z-index:60;background:rgba(245,247,243,.92);
  backdrop-filter:saturate(150%) blur(8px);
  border-bottom:1px solid transparent;transition:all .22s var(--ease);
}
.site-header.is-scrolled{background:rgba(255,255,255,.96);border-bottom-color:var(--line);box-shadow:var(--shadow-1);}
.header-inner{display:flex;align-items:center;justify-content:space-between;gap:24px;height:76px;transition:height .22s var(--ease);}
.site-header.is-scrolled .header-inner{height:64px;}
.logo{display:inline-flex;align-items:center;gap:11px;color:var(--ink-900);font-weight:800;letter-spacing:-.01em;}
.logo:hover{color:var(--ink-900);}
.logo-mark{
  width:34px;height:34px;border-radius:11px;background:var(--grad-brand);color:#fff;
  display:inline-flex;align-items:center;justify-content:center;font-size:1.0625rem;font-weight:800;
  box-shadow:0 8px 16px -10px rgba(14,122,95,.9);flex:none;
}
.logo-text{font-size:1.125rem;line-height:1.1;}
.main-nav{display:flex;align-items:center;gap:6px;}
.nav-link{
  position:relative;padding:9px 13px;border-radius:var(--r-sm);font-size:.9375rem;font-weight:600;
  color:var(--ink-700);transition:all .18s var(--ease);
}
.nav-link:hover{color:var(--brand-600);transform:translateY(-1px);background:var(--paper-2);}
.nav-link.is-active{color:var(--brand-700);}
.nav-link.is-active::after{
  content:"";position:absolute;left:50%;transform:translateX(-50%);bottom:1px;
  width:60%;height:3px;border-radius:3px;background:var(--grad-brand);
}
.header-actions{display:flex;align-items:center;gap:12px;}
.nav-toggle{
  display:none;width:44px;height:44px;border-radius:var(--r-sm);border:1px solid var(--line);
  background:var(--surface);color:var(--ink-900);font-size:1.0625rem;cursor:pointer;
  align-items:center;justify-content:center;transition:all .18s var(--ease);
}
.nav-toggle:hover{background:var(--paper-2);color:var(--brand-700);}

/* 抽屉 */
.drawer-mask{position:fixed;inset:0;background:rgba(8,63,50,.42);z-index:80;opacity:0;pointer-events:none;transition:opacity .22s var(--ease);}
.drawer-mask.is-open{opacity:1;pointer-events:auto;}
.drawer{
  position:fixed;top:0;right:0;bottom:0;width:min(84vw,340px);z-index:90;
  background:rgba(255,255,255,.97);border-left:1px solid var(--line);
  transform:translateX(100%);transition:transform .26s var(--ease);
  padding:22px 22px calc(22px + env(safe-area-inset-bottom));
  display:flex;flex-direction:column;gap:8px;box-shadow:var(--shadow-2);
}
.drawer.is-open{transform:translateX(0);}
.drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:14px;}
.drawer-close{width:40px;height:40px;border-radius:var(--r-sm);border:1px solid var(--line);background:var(--paper);cursor:pointer;color:var(--ink-900);}
.drawer .nav-link{display:block;padding:13px 14px;border-radius:var(--r-sm);font-size:1rem;}
.drawer .nav-link.is-active{background:var(--paper-2);}
.drawer .nav-link.is-active::after{display:none;}
.drawer .btn{margin-top:14px;}

/* Hero */
.hero{padding:56px 0 88px;position:relative;overflow:hidden;}
.hero::before{
  content:"";position:absolute;right:-160px;top:-120px;width:520px;height:520px;border-radius:50%;
  background:radial-gradient(circle,rgba(52,195,143,.16),transparent 68%);pointer-events:none;
}
.hero-grid{display:grid;grid-template-columns:1.06fr .94fr;gap:56px;align-items:center;position:relative;z-index:1;}
.hero h1{
  font-size:clamp(2rem,4.4vw,3.375rem);line-height:1.15;font-weight:800;letter-spacing:-.02em;
  color:var(--ink-900);margin-bottom:20px;
}
.hero-sub{font-size:1.125rem;line-height:1.75;color:var(--ink-500);max-width:34em;}
.hero-actions{display:flex;align-items:center;gap:16px;margin-top:32px;flex-wrap:wrap;}
.hero-note{margin-top:18px;font-size:.875rem;color:var(--ink-500);display:flex;align-items:center;gap:8px;}
.hero-note i{color:var(--brand-500);}
.hero-visual{position:relative;}
.hero-frame{
  background:var(--grad-brand);border-radius:var(--r-lg);padding:20px;position:relative;
  box-shadow:var(--shadow-2);overflow:visible;
}
.hero-frame::after{
  content:"";position:absolute;inset:0;border-radius:var(--r-lg);border:1px solid rgba(255,255,255,.28);pointer-events:none;
}
.hero-frame img{width:100%;aspect-ratio:4/3;object-fit:cover;border-radius:16px;box-shadow:0 18px 40px -24px rgba(8,63,50,.9);}
.badge-float{position:absolute;right:-14px;bottom:-22px;display:flex;gap:12px;}
.stat-badge{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-md);
  padding:14px 18px;box-shadow:inset 0 1px 0 #fff,var(--shadow-1);min-width:118px;
}
.stat-badge .num{
  display:block;font-size:1.75rem;font-weight:800;line-height:1.1;letter-spacing:-.02em;
  font-feature-settings:"tnum";background:var(--grad-brand);-webkit-background-clip:text;background-clip:text;color:transparent;
}
.stat-badge .lbl{display:block;font-size:.8125rem;color:var(--ink-500);margin-top:4px;}

/* 卖点 */
.feature-layout{display:grid;grid-template-columns:1.12fr .88fr;gap:24px;margin-top:48px;}
.feature-main{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-lg);padding:36px;
  box-shadow:var(--shadow-1);display:flex;flex-direction:column;gap:18px;
  transition:transform .22s var(--ease),box-shadow .22s var(--ease);
}
.feature-main:hover{transform:translateY(-4px);box-shadow:var(--shadow-2);}
.feature-stack{display:grid;grid-template-rows:1fr 1fr;gap:24px;}
.feature-side{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-lg);padding:26px 28px;
  box-shadow:var(--shadow-1);position:relative;overflow:hidden;
  transition:transform .22s var(--ease),box-shadow .22s var(--ease);
}
.feature-side::before{content:"";position:absolute;left:0;top:0;width:100%;height:4px;background:var(--grad-brand);}
.feature-side:hover{transform:translateY(-4px);box-shadow:var(--shadow-2);}
.icon-badge{
  width:52px;height:52px;border-radius:16px;background:var(--grad-brand);color:#fff;
  display:inline-flex;align-items:center;justify-content:center;font-size:1.25rem;
  box-shadow:0 12px 24px -16px rgba(14,122,95,.95);flex:none;
}
.icon-badge--accent{background:linear-gradient(135deg,#FF8A3D,#F2701F);box-shadow:0 12px 24px -16px rgba(242,112,31,.95);}
.feature-main h3{font-size:1.375rem;line-height:1.4;font-weight:700;color:var(--ink-900);}
.feature-main p{color:var(--ink-500);}
.feature-side h3{font-size:1.1875rem;font-weight:600;line-height:1.45;color:var(--ink-900);margin-top:16px;}
.feature-side p{color:var(--ink-500);font-size:.9375rem;line-height:1.8;margin-top:10px;}
.tag{
  display:inline-flex;align-items:center;gap:6px;padding:5px 13px;border-radius:var(--r-pill);
  background:var(--paper-2);color:var(--brand-700);font-size:.8125rem;font-weight:600;line-height:1.6;
}
.tag--accent{background:var(--accent-50);color:var(--accent-600);}

/* 场景演示 */
.scene{display:grid;grid-template-columns:1fr 1fr;gap:56px;align-items:center;}
.scene--reverse .scene-media{order:2;}
.scene-media{position:relative;}
.scene-media img{width:100%;aspect-ratio:16/11;object-fit:cover;border-radius:var(--r-lg);box-shadow:var(--shadow-1);border:1px solid rgba(255,255,255,.6);}
.scene-media .scene-tag{
  position:absolute;left:18px;top:18px;background:rgba(255,255,255,.94);color:var(--brand-700);
  border-radius:var(--r-pill);padding:6px 15px;font-size:.8125rem;font-weight:700;box-shadow:var(--shadow-1);
}
.scene h3{font-size:clamp(1.375rem,2.2vw,1.75rem);line-height:1.35;font-weight:700;color:var(--ink-900);margin-bottom:18px;}
.point-list{list-style:none;padding:0;margin:0 0 26px;display:grid;gap:14px;}
.point-list li{position:relative;padding-left:26px;color:var(--ink-700);line-height:1.8;}
.point-list li::before{
  content:"";position:absolute;left:0;top:.62em;width:10px;height:10px;border-radius:50%;
  background:var(--grad-brand);box-shadow:0 0 0 4px rgba(23,162,119,.12);
}
.band{background:var(--paper-2);border-top:1px solid var(--line);border-bottom:1px solid var(--line);}

/* 资讯列表 */
.news-grid{margin-top:44px;}
.news-card{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-md);overflow:hidden;
  height:100%;display:flex;flex-direction:column;box-shadow:var(--shadow-1);
  transition:transform .22s var(--ease),box-shadow .22s var(--ease);
  margin-bottom:24px;
}
.news-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-2);}
.news-thumb{display:block;overflow:hidden;background:var(--paper-2);}
.news-thumb img{width:100%;aspect-ratio:16/9;object-fit:cover;transition:transform .3s var(--ease);}
.news-card:hover .news-thumb img{transform:scale(1.03);}
.news-body{padding:22px 24px 24px;display:flex;flex-direction:column;gap:12px;flex:1;}
.news-title{font-size:1.1875rem;line-height:1.45;font-weight:600;color:var(--ink-900);}
.news-title a{color:inherit;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.news-title a:hover{color:var(--brand-700);}
.news-summary{
  color:var(--ink-500);font-size:.9375rem;line-height:1.8;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.news-foot{
  margin-top:auto;padding-top:16px;border-top:1px solid var(--line);
  display:flex;align-items:center;justify-content:space-between;gap:12px;
  font-size:.8125rem;color:var(--ink-500);
}
.empty-state{
  background:var(--surface);border:1px dashed var(--line);border-radius:var(--r-lg);
  padding:52px 28px;text-align:center;box-shadow:var(--shadow-1);
}
.empty-orb{
  width:76px;height:76px;border-radius:50%;margin:0 auto 18px;background:var(--grad-brand);
  display:flex;align-items:center;justify-content:center;color:#fff;font-size:1.5rem;
  box-shadow:0 18px 30px -20px rgba(14,122,95,.95);
}
.empty-state p{color:var(--ink-500);margin-bottom:20px;}

/* 社会认同 */
.proof{display:grid;grid-template-columns:1fr 1fr;gap:56px;align-items:start;}
.proof-badges{display:grid;grid-template-columns:1fr 1fr;gap:18px;}
.proof-badges .stat-badge{min-width:0;padding:22px 20px;}
.proof-badges .stat-badge .num{font-size:2rem;}
.quote-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px;margin-top:48px;}
.quote-card{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-md);padding:28px;
  box-shadow:var(--shadow-1);position:relative;transition:transform .22s var(--ease),box-shadow .22s var(--ease);
}
.quote-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-2);}
.quote-card::before{
  content:"“";position:absolute;right:22px;top:6px;font-size:3.5rem;line-height:1;color:var(--paper-2);font-weight:800;
}
.quote-card p{position:relative;color:var(--ink-700);font-size:.9375rem;line-height:1.85;}
.quote-who{margin-top:18px;font-size:.8125rem;color:var(--ink-500);display:flex;align-items:center;gap:8px;}
.quote-who span.dot{width:7px;height:7px;border-radius:50%;background:var(--accent-500);display:inline-block;}

/* FAQ */
.faq-layout{display:grid;grid-template-columns:.72fr 1.28fr;gap:56px;align-items:start;}
.faq-aside .btn{margin-top:26px;}
.faq-list{display:grid;gap:12px;}
.faq-item{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-md);
  box-shadow:var(--shadow-1);overflow:hidden;transition:box-shadow .2s var(--ease);
}
.faq-item[open]{box-shadow:var(--shadow-2);}
.faq-item summary{
  list-style:none;cursor:pointer;padding:20px 24px;display:flex;align-items:center;gap:16px;
  font-size:1.0625rem;font-weight:600;color:var(--ink-900);line-height:1.5;
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary::after{
  content:"+";margin-left:auto;width:28px;height:28px;flex:none;border-radius:50%;
  background:var(--paper-2);color:var(--brand-700);font-weight:700;font-size:1.125rem;
  display:inline-flex;align-items:center;justify-content:center;transition:all .2s var(--ease);
}
.faq-item[open] summary::after{content:"+";transform:rotate(45deg);background:var(--accent-50);color:var(--accent-600);}
.faq-body{padding:0 24px 22px;border-top:1px dashed var(--line);margin-top:0;padding-top:16px;}
.faq-body p{font-size:.9375rem;line-height:1.85;color:var(--ink-700);}

/* 底部CTA */
.cta-band{
  background:var(--brand-800);position:relative;overflow:hidden;color:#fff;
  border-radius:0;padding:96px 0;
}
.cta-band::before{
  content:"";position:absolute;left:50%;top:-180px;transform:translateX(-50%);
  width:880px;height:520px;border-radius:50%;
  background:radial-gradient(circle,rgba(52,195,143,.28),transparent 68%);pointer-events:none;
}
.cta-band::after{
  content:"";position:absolute;right:-140px;bottom:-200px;width:520px;height:520px;border-radius:50%;
  background:radial-gradient(circle,rgba(255,138,61,.20),transparent 70%);pointer-events:none;
}
.cta-inner{position:relative;z-index:1;text-align:center;max-width:760px;margin:0 auto;}
.cta-inner h2{font-size:clamp(1.625rem,3vw,2.375rem);line-height:1.3;font-weight:800;color:#fff;letter-spacing:-.01em;}
.cta-inner p{margin-top:18px;color:rgba(255,255,255,.78);font-size:1.0625rem;line-height:1.8;}
.cta-actions{display:flex;justify-content:center;gap:16px;margin-top:34px;flex-wrap:wrap;}
.cta-band .btn-ghost{border-color:rgba(255,255,255,.6);color:#fff;}
.cta-band .btn-ghost:hover{background:rgba(255,255,255,.12);border-color:var(--accent-500);color:#fff;}

/* 页脚 */
.site-footer{background:var(--brand-800);color:rgba(255,255,255,.72);border-top:1px solid rgba(255,255,255,.08);padding:72px 0 0;}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:44px;}
.footer-brand .logo-text{color:#fff;font-size:1.125rem;font-weight:800;}
.footer-brand .logo-mark{box-shadow:none;}
.footer-brand p{margin-top:16px;font-size:.875rem;line-height:1.85;color:rgba(255,255,255,.66);max-width:24em;}
.footer-col h4{font-size:.9375rem;font-weight:700;color:#fff;margin-bottom:18px;letter-spacing:.02em;}
.footer-col ul{list-style:none;padding:0;margin:0;display:grid;gap:10px;}
.footer-col a{color:rgba(255,255,255,.72);font-size:.9375rem;}
.footer-col a:hover{color:var(--brand-400);}
.footer-col li span{font-size:.9375rem;color:rgba(255,255,255,.72);}
.footer-bottom{
  margin-top:56px;border-top:1px solid rgba(255,255,255,.1);padding:22px 0 26px;
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:.8125rem;color:rgba(255,255,255,.56);
}
.footer-bottom a{color:rgba(255,255,255,.62);}
.footer-bottom a:hover{color:var(--brand-400);}

/* 固定转化条 */
.cta-bar{
  position:fixed;left:0;right:0;bottom:0;z-index:70;display:none;
  align-items:center;justify-content:space-between;gap:14px;
  padding:12px 16px calc(12px + env(safe-area-inset-bottom));
  background:rgba(255,255,255,.98);border-top:1px solid var(--line);box-shadow:0 -10px 30px -22px rgba(8,63,50,.7);
}
.cta-bar-text{font-size:.875rem;font-weight:600;color:var(--ink-900);line-height:1.4;}
.cta-bar .btn{padding:12px 22px;font-size:.9375rem;}
.cta-bar-close{
  width:34px;height:34px;flex:none;border-radius:50%;border:1px solid var(--line);background:var(--paper);
  color:var(--ink-500);cursor:pointer;display:inline-flex;align-items:center;justify-content:center;
}
.cta-bar.is-visible{display:flex;}

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

/* 断点 */
@media screen and (max-width:1023px){
  .container{padding:0 24px;}
  .section{padding:76px 0;}
  .section--tight{padding:60px 0;}
  .main-nav{display:none;}
  .nav-toggle{display:inline-flex;}
  .hero{padding:36px 0 64px;}
  .hero-grid{grid-template-columns:1fr;gap:40px;}
  .hero h1{font-size:clamp(1.875rem,5.2vw,2.5rem);}
  .hero-sub{font-size:1.0625rem;}
  .badge-float{position:static;margin-top:16px;justify-content:flex-start;}
  .feature-layout{grid-template-columns:1fr;}
  .feature-stack{grid-template-rows:none;grid-template-columns:1fr 1fr;}
  .scene{grid-template-columns:1fr;gap:32px;}
  .scene--reverse .scene-media{order:0;}
  .proof{grid-template-columns:1fr;gap:36px;}
  .quote-grid{grid-template-columns:1fr;}
  .faq-layout{grid-template-columns:1fr;gap:36px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:36px;}
  .cta-band{padding:72px 0;}
}
@media screen and (max-width:767px){
  .feature-stack{grid-template-columns:1fr;}
}
@media screen and (max-width:639px){
  .container{padding:0 18px;}
  .section{padding:56px 0;}
  .section--tight{padding:48px 0;}
  .logo-text{font-size:1rem;}
  .header-inner{height:64px;}
  .hero-actions{flex-direction:column;align-items:stretch;gap:12px;}
  .hero-actions .btn{width:100%;}
  .hero-actions .btn-ghost{border:none;padding-left:0;padding-right:0;justify-content:flex-start;color:var(--brand-600);}
  .hero-actions .btn-ghost:hover{background:transparent;transform:none;}
  .stat-badge{padding:12px 14px;min-width:0;}
  .stat-badge .num{font-size:1.5rem;}
  .proof-badges{grid-template-columns:1fr 1fr;gap:12px;}
  .proof-badges .stat-badge .num{font-size:1.625rem;}
  .footer-grid{grid-template-columns:1fr;}
  .cta-bar{display:flex;}
  .cta-bar .btn{padding:11px 18px;font-size:.875rem;}
  .cta-bar-text{font-size:.8125rem;}
  .page-main{padding-bottom:88px;}
  .cta-actions{flex-direction:column;align-items:stretch;}
  .cta-actions .btn{width:100%;}
  .quote-card{padding:22px;}
  .faq-item summary{padding:17px 18px;font-size:1rem;}
  .faq-body{padding:0 18px 18px;}
}
@media screen and (min-width:1280px){
  .container{max-width:1200px;}
}

/* roulang page: article */
:root{
  --brand-600:#0E7A5F;
  --brand-700:#0B6B54;
  --brand-800:#083F32;
  --brand-500:#17A277;
  --brand-400:#34C38F;
  --grad-brand:linear-gradient(135deg,#0E7A5F 0%,#17A277 52%,#34C38F 100%);
  --accent-500:#FF8A3D;
  --accent-600:#F2701F;
  --accent-50:#FFF3EA;
  --ink-900:#16241F;
  --ink-700:#33443E;
  --ink-500:#5C6B66;
  --surface:#FFFFFF;
  --paper:#F5F7F3;
  --paper-2:#EDF2EC;
  --line:#E2E8E3;
  --r-lg:24px;
  --r-md:18px;
  --r-sm:12px;
  --r-pill:999px;
  --shadow-1:0 2px 4px rgba(8,63,50,.05),0 16px 32px -20px rgba(8,63,50,.22);
  --shadow-2:0 6px 12px rgba(8,63,50,.08),0 28px 48px -24px rgba(8,63,50,.30);
  --ease:cubic-bezier(.2,.7,.3,1);
}
*,*::before,*::after{box-sizing:border-box}
[hidden]{display:none !important}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  background:var(--paper);
  color:var(--ink-700);
  font-family:-apple-system,"PingFang SC","Hiragino Sans GB","Source Han Sans SC","Microsoft YaHei",sans-serif;
  font-size:1rem;
  line-height:1.85;
  -webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4,h5,h6,p,ul,ol,figure,blockquote{margin:0}
ul,ol{padding-left:1.2em}
img{max-width:100%;height:auto;display:block}
a{color:var(--brand-600);text-decoration:none;transition:color .18s var(--ease)}
a:hover{color:var(--brand-700)}
button{font-family:inherit}
:focus-visible{outline:2px solid var(--accent-500);outline-offset:2px;border-radius:6px}
.container{
  width:100%;
  max-width:1200px;
  margin:0 auto;
  padding-left:32px;
  padding-right:32px;
}
@media (max-width:1023px){.container{padding-left:24px;padding-right:24px}}
@media (max-width:639px){.container{padding-left:18px;padding-right:18px}}

/* ---------- header ---------- */
.site-header{
  position:sticky;
  top:0;
  z-index:80;
  background:var(--surface);
  border-bottom:1px solid var(--line);
  transition:height .22s var(--ease),box-shadow .22s var(--ease);
}
.site-header.is-scrolled{box-shadow:var(--shadow-1)}
.header-inner{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:22px;
  height:76px;
  transition:height .22s var(--ease);
}
.site-header.is-scrolled .header-inner{height:64px}
.logo{
  display:inline-flex;
  align-items:center;
  gap:10px;
  color:var(--ink-900);
  flex-shrink:0;
}
.logo-mark{
  width:36px;
  height:36px;
  border-radius:11px;
  background:var(--grad-brand);
  color:#fff;
  display:grid;
  place-items:center;
  font-size:1.0625rem;
  font-weight:800;
  letter-spacing:0;
  box-shadow:0 10px 20px -12px rgba(14,122,95,.9);
}
.logo-text{
  font-size:1.125rem;
  font-weight:800;
  letter-spacing:-.01em;
  color:var(--ink-900);
  white-space:nowrap;
}
.main-nav{display:flex;align-items:center;gap:4px;flex-wrap:nowrap}
.nav-link{
  position:relative;
  display:inline-block;
  padding:9px 14px;
  border-radius:var(--r-pill);
  font-size:.9375rem;
  font-weight:600;
  color:var(--ink-700);
  white-space:nowrap;
  transition:color .18s var(--ease),background .18s var(--ease),transform .18s var(--ease);
}
.nav-link:hover{color:var(--brand-600);background:var(--paper-2);transform:translateY(-1px)}
.nav-link.is-active{color:var(--brand-700)}
.nav-link.is-active::after{
  content:"";
  position:absolute;
  left:14px;
  right:14px;
  bottom:2px;
  height:3px;
  border-radius:3px;
  background:var(--grad-brand);
}
.header-actions{display:flex;align-items:center;gap:10px;flex-shrink:0}
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  padding:13px 28px;
  border:1.5px solid transparent;
  border-radius:var(--r-pill);
  font-size:.9375rem;
  font-weight:600;
  line-height:1.2;
  cursor:pointer;
  transition:transform .2s var(--ease),box-shadow .2s var(--ease),filter .2s var(--ease),background .2s var(--ease),color .2s var(--ease),border-color .2s var(--ease);
}
.btn-primary{
  background:var(--grad-brand);
  color:#fff;
  box-shadow:0 14px 26px -16px rgba(14,122,95,.85);
}
.btn-primary:hover{filter:brightness(1.06);transform:translateY(-2px);box-shadow:var(--shadow-2);color:#fff}
.btn-primary:active{transform:translateY(0);filter:brightness(.96)}
.btn-ghost{
  background:transparent;
  border-color:var(--brand-600);
  color:var(--brand-700);
}
.btn-ghost:hover{background:var(--paper-2);border-color:var(--accent-500);color:var(--accent-600);transform:translateY(-2px)}
.btn-ghost:active{transform:translateY(0)}
.btn-sm{padding:10px 20px;font-size:.875rem}
.btn-block{width:100%}
.nav-toggle{
  display:none;
  width:44px;height:44px;
  align-items:center;justify-content:center;
  background:var(--paper-2);
  border:1px solid var(--line);
  border-radius:12px;
  cursor:pointer;
  color:var(--ink-900);
}
.nav-toggle span{display:block;width:18px;height:2px;border-radius:2px;background:var(--ink-900);position:relative}
.nav-toggle span::before,.nav-toggle span::after{
  content:"";position:absolute;left:0;width:18px;height:2px;border-radius:2px;background:var(--ink-900);
}
.nav-toggle span::before{top:-6px}
.nav-toggle span::after{top:6px}

.drawer{position:fixed;inset:0;z-index:95;display:none}
.drawer.is-open{display:block}
.drawer-mask{position:absolute;inset:0;background:rgba(8,63,50,.48)}
.drawer-panel{
  position:absolute;top:0;right:0;
  width:min(330px,88vw);
  height:100%;
  background:var(--surface);
  padding:22px;
  display:flex;
  flex-direction:column;
  gap:8px;
  transform:translateX(100%);
  transition:transform .28s var(--ease);
  box-shadow:-24px 0 60px rgba(8,63,50,.22);
  overflow-y:auto;
}
.drawer.is-open .drawer-panel{transform:translateX(0)}
.drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:10px}
.drawer-close{
  width:40px;height:40px;border-radius:12px;border:1px solid var(--line);
  background:var(--paper-2);color:var(--ink-900);font-size:1.25rem;line-height:1;cursor:pointer;
}
.drawer-panel .nav-link{
  width:100%;
  padding:13px 16px;
  border-radius:var(--r-sm);
  background:var(--paper);
}
.drawer-panel .nav-link.is-active{background:var(--paper-2);color:var(--brand-700)}
.drawer-panel .nav-link.is-active::after{display:none}
.drawer-foot{margin-top:auto;padding-top:18px;border-top:1px solid var(--line)}

/* ---------- article hero ---------- */
.article-hero{
  background:linear-gradient(180deg,#E9F0E8 0%,var(--paper) 100%);
  padding:34px 0 34px;
  border-bottom:1px solid var(--line);
}
.breadcrumb{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:8px;
  font-size:.875rem;
  color:var(--ink-500);
  margin-bottom:22px;
}
.breadcrumb a{color:var(--ink-500)}
.breadcrumb a:hover{color:var(--brand-600)}
.breadcrumb .slash{color:#B7C4BC}
.breadcrumb .current{
  color:var(--ink-900);
  font-weight:600;
  max-width:min(420px,60vw);
  overflow:hidden;
  text-overflow:ellipsis;
  white-space:nowrap;
}
.article-head{max-width:880px}
.cat-pill{
  display:inline-flex;
  align-items:center;
  gap:6px;
  padding:6px 14px;
  border-radius:var(--r-pill);
  background:var(--accent-50);
  border:1px solid #FFD9BF;
  color:var(--accent-600);
  font-size:.8125rem;
  font-weight:700;
  letter-spacing:.02em;
}
.article-title{
  font-size:clamp(1.75rem,3.6vw,2.5rem);
  line-height:1.28;
  font-weight:800;
  letter-spacing:-.015em;
  color:var(--ink-900);
  margin:16px 0 0;
  overflow-wrap:break-word;
  display:-webkit-box;
  -webkit-line-clamp:3;
  -webkit-box-orient:vertical;
  overflow:hidden;
}
.article-meta{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:10px;
  margin-top:18px;
  font-size:.875rem;
  color:var(--ink-500);
}
.article-meta .dot{color:#B7C4BC}
.article-meta strong{color:var(--brand-700);font-weight:600}
.grad-rule{
  height:4px;
  border-radius:4px;
  background:var(--grad-brand);
  margin-top:22px;
  max-width:260px;
}

/* ---------- layout ---------- */
.page-main{padding:48px 0 72px}
.article-layout{display:flex;flex-wrap:wrap;gap:48px;align-items:flex-start}
.article-layout > .article-main{flex:1 1 600px;min-width:0;max-width:820px}
.article-layout > .article-side-col{flex:0 1 300px;min-width:0}
@media (max-width:1023px){
  .article-layout{gap:32px}
  .article-layout > .article-main,
  .article-layout > .article-side-col{flex:1 1 100%;max-width:none}
}

/* ---------- article body ---------- */
.article-body{
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--r-lg);
  padding:38px 40px;
  box-shadow:var(--shadow-1);
  font-size:1.0625rem;
  line-height:1.9;
  color:var(--ink-700);
  overflow-wrap:break-word;
}
.article-body > *:first-child{margin-top:0}
.article-body p{margin:0 0 1.2em}
.article-body p:last-child{margin-bottom:0}
.article-body a{
  color:var(--brand-600);
  font-weight:600;
  background:linear-gradient(var(--brand-400),var(--brand-400)) no-repeat 0 100%/0 2px;
  transition:background-size .22s var(--ease),color .18s var(--ease);
  padding-bottom:1px;
}
.article-body a:hover{color:var(--brand-700);background-size:100% 2px}
.article-body h2{
  position:relative;
  margin:40px 0 16px;
  padding-left:16px;
  font-size:clamp(1.3rem,2.2vw,1.6rem);
  line-height:1.35;
  font-weight:700;
  color:var(--ink-900);
}
.article-body h2::before{
  content:"";
  position:absolute;
  left:0;
  top:.24em;
  bottom:.24em;
  width:4px;
  border-radius:4px;
  background:var(--grad-brand);
}
.article-body h3{
  margin:28px 0 12px;
  font-size:1.1875rem;
  line-height:1.5;
  font-weight:600;
  color:var(--ink-900);
}
.article-body h4{margin:22px 0 10px;font-size:1.0625rem;font-weight:600;color:var(--ink-900)}
.article-body ul,.article-body ol{margin:0 0 1.2em;padding-left:1.4em}
.article-body li{margin-bottom:8px;line-height:1.9}
.article-body li::marker{color:var(--brand-500)}
.article-body strong{color:var(--ink-900);font-weight:700}
.article-body blockquote{
  margin:24px 0;
  padding:18px 22px;
  background:var(--paper-2);
  border-left:4px solid var(--brand-500);
  border-radius:0 var(--r-sm) var(--r-sm) 0;
  color:var(--ink-700);
}
.article-body blockquote p:last-child{margin-bottom:0}
.article-body img{
  display:block;
  width:100%;
  height:auto;
  border-radius:var(--r-md);
  margin:26px auto 10px;
}
.article-body figure{margin:26px 0}
.article-body figure img{margin:0 0 10px}
.article-body figcaption{
  text-align:center;
  font-size:.8125rem;
  line-height:1.7;
  color:var(--ink-500);
}
.article-body hr{
  border:0;
  height:1px;
  background:var(--line);
  margin:32px 0;
}
.article-body table{
  width:100%;
  border-collapse:collapse !important;
  margin:24px 0;
  font-size:.9375rem;
  line-height:1.7;
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--r-sm);
  overflow:hidden;
}
.article-body th,.article-body td{
  border:0 !important;
  border-bottom:1px solid var(--line) !important;
  padding:12px 14px !important;
  text-align:left;
  vertical-align:top;
}
.article-body thead th{
  background:var(--paper-2) !important;
  color:var(--ink-900);
  font-weight:700;
}
.article-body tbody tr:nth-child(even){background:#FAFBF9}
.article-body tbody tr:last-child td{border-bottom:0 !important}

.article-empty{
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--r-lg);
  padding:56px 32px;
  text-align:center;
  box-shadow:var(--shadow-1);
}
.article-empty .empty-orb{
  width:76px;height:76px;
  margin:0 auto 18px;
  border-radius:50%;
  background:var(--grad-brand);
  opacity:.16;
}
.article-empty h2{font-size:1.375rem;font-weight:800;color:var(--ink-900);margin-bottom:10px}
.article-empty p{color:var(--ink-500);font-size:.9375rem;margin-bottom:22px}

/* ---------- sidebar ---------- */
.article-side{position:sticky;top:96px;display:flex;flex-direction:column;gap:20px}
@media (max-width:1023px){.article-side{position:static}}
.side-card{
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--r-md);
  padding:22px;
  box-shadow:var(--shadow-1);
}
.side-card-accent{background:linear-gradient(180deg,#F1F8F3,#FFFFFF);border-color:#D6E7DB}
.side-title{
  font-size:1rem;
  font-weight:700;
  color:var(--ink-900);
  margin-bottom:14px;
  display:flex;
  align-items:center;
  gap:8px;
}
.side-title::before{
  content:"";
  width:12px;height:3px;border-radius:3px;background:var(--grad-brand);
}
.side-links{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:4px}
.side-links a{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:10px;
  padding:10px 12px;
  border-radius:var(--r-sm);
  font-size:.9375rem;
  font-weight:600;
  color:var(--ink-700);
  transition:background .18s var(--ease),color .18s var(--ease),transform .18s var(--ease);
}
.side-links a:hover{background:var(--paper-2);color:var(--brand-700);transform:translateX(2px)}
.side-links .arrow{color:var(--accent-500);font-size:.9375rem;transition:transform .18s var(--ease)}
.side-links a:hover .arrow{transform:translateX(3px)}
.side-card p{font-size:.875rem;line-height:1.8;color:var(--ink-500);margin-bottom:16px}

/* ---------- related ---------- */
.related-block{margin-top:40px}
.sec-mark{
  display:inline-flex;
  align-items:center;
  gap:8px;
  font-size:.8125rem;
  font-weight:700;
  letter-spacing:.08em;
  color:var(--brand-600);
  margin-bottom:10px;
}
.sec-mark::after{content:"";width:1px;height:12px;background:var(--line)}
.sec-title{
  font-size:clamp(1.25rem,2.2vw,1.5rem);
  font-weight:700;
  color:var(--ink-900);
  line-height:1.3;
  margin-bottom:20px;
}
.related-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:20px}
@media (max-width:1023px){.related-grid{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media (max-width:639px){.related-grid{grid-template-columns:1fr}}
.mini-card{
  display:flex;
  flex-direction:column;
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--r-md);
  overflow:hidden;
  box-shadow:var(--shadow-1);
  transition:transform .22s var(--ease),box-shadow .22s var(--ease),border-color .22s var(--ease);
  height:100%;
}
.mini-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-2);border-color:#CFE2D5}
.mini-card img{width:100%;aspect-ratio:16/9;object-fit:cover;border-radius:0}
.mini-body{padding:18px 20px 20px;display:flex;flex-direction:column;gap:8px}
.tag{
  display:inline-flex;
  align-self:flex-start;
  padding:4px 12px;
  border-radius:var(--r-pill);
  background:var(--paper-2);
  color:var(--ink-500);
  font-size:.75rem;
  font-weight:600;
}
.mini-body h3{
  font-size:1.0625rem;
  font-weight:600;
  line-height:1.45;
  color:var(--ink-900);
  display:-webkit-box;
  -webkit-line-clamp:2;
  -webkit-box-orient:vertical;
  overflow:hidden;
}
.mini-card:hover .mini-body h3{color:var(--brand-700)}
.mini-foot{
  margin-top:auto;
  display:flex;
  align-items:center;
  gap:6px;
  font-size:.8125rem;
  font-weight:600;
  color:var(--brand-600);
}
.mini-card:hover .mini-foot .arrow{transform:translateX(4px)}
.mini-foot .arrow{transition:transform .2s var(--ease)}

/* ---------- sticky cta ---------- */
.sticky-cta{
  position:fixed;
  left:50%;
  bottom:18px;
  transform:translateX(-50%);
  z-index:70;
  display:flex;
  align-items:center;
  gap:16px;
  padding:10px 12px 10px 22px;
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--r-pill);
  box-shadow:var(--shadow-2);
  max-width:calc(100% - 36px);
}
.sticky-text{
  font-size:.875rem;
  font-weight:600;
  color:var(--ink-900);
  white-space:nowrap;
  overflow:hidden;
  text-overflow:ellipsis;
}
.sticky-close{
  width:32px;height:32px;
  border-radius:50%;
  border:1px solid var(--line);
  background:var(--paper);
  color:var(--ink-500);
  font-size:1.0625rem;
  line-height:1;
  cursor:pointer;
  flex-shrink:0;
  transition:background .18s var(--ease),color .18s var(--ease);
}
.sticky-close:hover{background:var(--accent-50);color:var(--accent-600)}

/* ---------- footer ---------- */
.site-footer{
  margin-top:80px;
  background:var(--brand-800);
  color:rgba(255,255,255,.78);
  border-top:1px solid rgba(255,255,255,.08);
  position:relative;
  overflow:hidden;
}
.site-footer::before{
  content:"";
  position:absolute;
  width:520px;height:520px;
  right:-160px;top:-260px;
  background:radial-gradient(circle,rgba(52,195,143,.22),transparent 68%);
  pointer-events:none;
}
.footer-grid{
  position:relative;
  display:grid;
  grid-template-columns:1.5fr 1fr 1fr 1fr;
  gap:36px;
  padding:64px 0 0;
}
.footer-brand .logo-text{color:#fff}
.footer-brand p{
  margin-top:16px;
  font-size:.9375rem;
  line-height:1.8;
  color:rgba(255,255,255,.72);
  max-width:26em;
}
.footer-col h4{
  font-size:.9375rem;
  font-weight:700;
  color:#fff;
  margin-bottom:14px;
}
.footer-col ul{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:10px}
.footer-col a,.footer-col span{
  font-size:.875rem;
  line-height:1.7;
  color:rgba(255,255,255,.72);
  transition:color .18s var(--ease);
}
.footer-col a:hover{color:var(--brand-400)}
.footer-bottom{
  position:relative;
  margin-top:48px;
  padding:22px 0;
  border-top:1px solid rgba(255,255,255,.08);
  display:flex;
  flex-wrap:wrap;
  gap:12px;
  justify-content:space-between;
  font-size:.8125rem;
  color:rgba(255,255,255,.6);
}

@media (max-width:1023px){
  .main-nav{display:none}
  .nav-toggle{display:inline-flex}
  .site-header .header-actions .btn{display:none}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;padding-top:52px}
  .article-body{padding:30px 26px}
}
@media (max-width:639px){
  .header-inner{height:66px;gap:12px}
  .site-header.is-scrolled .header-inner{height:60px}
  .logo-text{font-size:1rem;max-width:9.5em;overflow:hidden;text-overflow:ellipsis}
  .article-hero{padding:24px 0 26px}
  .page-main{padding:32px 0 56px}
  .article-body{padding:24px 20px;border-radius:var(--r-md);font-size:1rem}
  .article-body h2{margin-top:32px}
  .article-title{-webkit-line-clamp:4}
  .breadcrumb .current{max-width:56vw}
  .footer-grid{grid-template-columns:1fr;padding-top:44px;gap:26px}
  .footer-bottom{flex-direction:column;font-size:.75rem}
  body{padding-bottom:84px}
  .sticky-cta{
    left:0;right:0;bottom:0;
    transform:none;
    max-width:none;
    border-radius:18px 18px 0 0;
    padding:12px 14px calc(12px + env(safe-area-inset-bottom));
    gap:10px;
    justify-content:space-between;
  }
  .sticky-text{font-size:.8125rem;max-width:13em}
}
@media (prefers-reduced-motion:reduce){
  *{animation:none !important;transition:none !important}
}

/* roulang page: category1 */
:root{
  --brand-600:#0E7A5F;
  --brand-700:#0B6B54;
  --brand-800:#083F32;
  --brand-500:#17A277;
  --brand-400:#34C38F;
  --grad-brand:linear-gradient(135deg,#0E7A5F 0%,#17A277 52%,#34C38F 100%);
  --accent-500:#FF8A3D;
  --accent-600:#F2701F;
  --accent-50:#FFF3EA;
  --ink-900:#16241F;
  --ink-700:#33443E;
  --ink-500:#5C6B66;
  --surface:#FFFFFF;
  --paper:#F5F7F3;
  --paper-2:#EDF2EC;
  --line:#E2E8E3;
  --r-lg:24px;
  --r-md:18px;
  --r-sm:12px;
  --r-pill:999px;
  --shadow-1:0 2px 4px rgba(8,63,50,.05),0 16px 32px -20px rgba(8,63,50,.22);
  --shadow-2:0 6px 12px rgba(8,63,50,.08),0 28px 48px -24px rgba(8,63,50,.30);
  --ease:cubic-bezier(.2,.7,.3,1);
  --nav-h:76px;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:-apple-system,"PingFang SC","Hiragino Sans GB","Source Han Sans SC","Microsoft YaHei",sans-serif;
  font-size:16px;
  line-height:1.85;
  color:var(--ink-700);
  background:var(--paper);
  overflow-x:hidden;
}
img{max-width:100%;display:block;}
a{color:var(--brand-600);text-decoration:none;background:transparent;}
a:hover{color:var(--brand-700);}
ul,ol{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4,p{margin:0;}
button{font-family:inherit;}
:focus-visible{outline:2px solid var(--accent-500);outline-offset:2px;border-radius:6px;}
.container{
  width:100%;
  max-width:1200px;
  margin:0 auto;
  padding-left:32px;
  padding-right:32px;
}
.section{padding:104px 0;}
.section--tight{padding:72px 0;}
.section--paper{background:var(--paper-2);}
.section-head{max-width:720px;margin-bottom:44px;}
.eyebrow{
  display:inline-flex;align-items:center;gap:10px;
  font-size:.8125rem;font-weight:700;letter-spacing:.08em;
  color:var(--brand-600);margin-bottom:16px;
}
.eyebrow::before{content:"";width:3px;height:14px;background:var(--grad-brand);border-radius:2px;}
h2.section-title{
  font-size:clamp(1.5rem,2.6vw,2.125rem);
  font-weight:700;line-height:1.25;color:var(--ink-900);
  letter-spacing:-.01em;
  position:relative;padding-top:16px;
}
h2.section-title::before{
  content:"";position:absolute;top:0;left:0;width:44px;height:4px;border-radius:2px;background:var(--grad-brand);
}
.section-desc{margin-top:14px;font-size:1rem;color:var(--ink-500);max-width:44em;}
h3{font-size:1.1875rem;font-weight:600;line-height:1.45;color:var(--ink-900);}
p{font-size:1rem;line-height:1.85;color:var(--ink-700);}

/* ---------- header ---------- */
.site-header{
  position:sticky;top:0;z-index:80;
  background:rgba(245,247,243,.92);
  backdrop-filter:saturate(140%) blur(8px);
  border-bottom:1px solid transparent;
  transition:background .22s var(--ease),border-color .22s var(--ease),box-shadow .22s var(--ease);
}
.site-header.is-scrolled{
  background:var(--surface);
  border-bottom:1px solid var(--line);
  box-shadow:var(--shadow-1);
}
.header-inner{
  display:flex;align-items:center;gap:24px;
  min-height:var(--nav-h);
  transition:min-height .22s var(--ease);
}
.site-header.is-scrolled .header-inner{min-height:64px;}
.logo{display:inline-flex;align-items:center;gap:10px;flex:0 0 auto;color:var(--ink-900);}
.logo:hover{color:var(--ink-900);}
.logo-mark{
  width:32px;height:32px;border-radius:10px;
  background:var(--grad-brand);
  color:#fff;font-weight:800;font-size:1rem;line-height:32px;text-align:center;
  box-shadow:inset 0 1px 0 rgba(255,255,255,.35),0 6px 14px -8px rgba(8,63,50,.7);
}
.logo-text{font-weight:800;font-size:1.0625rem;letter-spacing:-.01em;white-space:nowrap;}
.main-nav{display:flex;align-items:center;gap:4px;margin-left:auto;}
.nav-link{
  position:relative;display:inline-block;
  padding:10px 14px;border-radius:var(--r-sm);
  font-size:.9375rem;font-weight:500;color:var(--ink-700);
  transition:color .18s var(--ease),transform .18s var(--ease),background .18s var(--ease);
}
.nav-link:hover{color:var(--brand-600);transform:translateY(-1px);background:rgba(23,162,119,.07);}
.nav-link::after{
  content:"";position:absolute;left:50%;bottom:4px;transform:translateX(-50%) scaleX(0);
  width:60%;height:3px;border-radius:2px;background:var(--grad-brand);
  transition:transform .2s var(--ease);transform-origin:center;
}
.nav-link.is-active{color:var(--brand-700);font-weight:700;}
.nav-link.is-active::after{transform:translateX(-50%) scaleX(1);}
.header-cta{margin-left:12px;flex:0 0 auto;}
.nav-toggle{
  display:none;margin-left:auto;
  width:44px;height:44px;border-radius:12px;
  border:1px solid var(--line);background:var(--surface);
  align-items:center;justify-content:center;cursor:pointer;
  box-shadow:var(--shadow-1);
}
.nav-toggle span{display:block;width:18px;height:2px;background:var(--ink-900);border-radius:2px;position:relative;}
.nav-toggle span::before,.nav-toggle span::after{
  content:"";position:absolute;left:0;width:18px;height:2px;background:var(--ink-900);border-radius:2px;
}
.nav-toggle span::before{top:-6px;}
.nav-toggle span::after{top:6px;}

/* drawer */
.drawer-mask{
  position:fixed;inset:0;background:rgba(8,63,50,.38);
  opacity:0;visibility:hidden;transition:opacity .22s var(--ease),visibility .22s var(--ease);z-index:90;
}
.drawer-mask.is-open{opacity:1;visibility:visible;}
.nav-drawer{
  position:fixed;top:0;right:0;bottom:0;width:min(320px,86vw);z-index:95;
  background:rgba(255,255,255,.96);
  border-left:1px solid var(--line);
  box-shadow:var(--shadow-2);
  transform:translateX(102%);
  transition:transform .28s var(--ease);
  padding:24px 22px calc(24px + env(safe-area-inset-bottom));
  display:flex;flex-direction:column;gap:8px;
  overflow-y:auto;
}
.nav-drawer.is-open{transform:translateX(0);}
.drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:12px;}
.drawer-close{
  width:40px;height:40px;border-radius:12px;border:1px solid var(--line);
  background:var(--paper);color:var(--ink-900);font-size:1.25rem;line-height:1;cursor:pointer;
}
.nav-drawer .nav-link{display:block;padding:14px 14px;border-radius:var(--r-sm);font-size:1rem;}
.nav-drawer .nav-link::after{display:none;}
.nav-drawer .nav-link.is-active{background:var(--paper-2);}
.nav-drawer .btn{width:100%;margin-top:12px;justify-content:center;}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:14px 28px;border-radius:var(--r-pill);
  font-size:.9375rem;font-weight:600;line-height:1.2;
  border:1.5px solid transparent;cursor:pointer;
  transition:transform .18s var(--ease),box-shadow .18s var(--ease),background .18s var(--ease),color .18s var(--ease),border-color .18s var(--ease),filter .18s var(--ease);
}
.btn-primary{background:var(--grad-brand);color:#fff;box-shadow:var(--shadow-1);}
.btn-primary:hover{color:#fff;filter:brightness(1.06);transform:translateY(-2px);box-shadow:var(--shadow-2);}
.btn-primary:active{transform:translateY(0);filter:brightness(.96);}
.btn-ghost{background:transparent;color:var(--brand-700);border-color:var(--brand-600);}
.btn-ghost:hover{background:var(--paper-2);border-color:var(--accent-500);color:var(--accent-600);transform:translateY(-2px);}
.btn-ghost:active{transform:translateY(0);}
.btn-sm{padding:10px 20px;font-size:.875rem;}
.btn-row{display:flex;flex-wrap:wrap;gap:14px;align-items:center;}
.link-arrow{
  display:inline-flex;align-items:center;gap:8px;font-weight:600;font-size:.9375rem;color:var(--brand-600);
  background-image:var(--grad-brand);background-repeat:no-repeat;background-position:0 100%;background-size:0 2px;
  transition:background-size .2s var(--ease),color .2s var(--ease);
  padding-bottom:2px;
}
.link-arrow:hover{color:var(--brand-700);background-size:100% 2px;}
.link-arrow span{transition:transform .2s var(--ease);}
.link-arrow:hover span{transform:translateX(4px);}

/* ---------- hero ---------- */
.hero{padding:56px 0 88px;position:relative;overflow:hidden;}
.hero::before{
  content:"";position:absolute;top:-160px;right:-120px;width:520px;height:520px;border-radius:50%;
  background:radial-gradient(circle,rgba(23,162,119,.16) 0%,rgba(23,162,119,0) 70%);
  pointer-events:none;
}
.hero-inner{display:grid;grid-template-columns:1.15fr .85fr;gap:56px;align-items:center;position:relative;}
.hero h1{
  font-size:clamp(2rem,4.4vw,3.375rem);
  font-weight:800;line-height:1.15;letter-spacing:-.02em;color:var(--ink-900);
  margin-bottom:20px;
}
.hero-sub{font-size:1.0625rem;line-height:1.75;color:var(--ink-500);max-width:34em;margin-bottom:30px;}
.hero-note{margin-top:20px;font-size:.875rem;color:var(--ink-500);display:flex;align-items:center;gap:8px;}
.hero-note::before{content:"";width:8px;height:8px;border-radius:50%;background:var(--accent-500);flex:0 0 auto;}
.hero-visual{position:relative;}
.hero-figure{
  position:relative;border-radius:var(--r-lg);overflow:hidden;
  background:var(--grad-brand);
  box-shadow:var(--shadow-2);
  aspect-ratio:4/3;
  border:1px solid rgba(255,255,255,.35);
}
.hero-figure img{width:100%;height:100%;object-fit:cover;opacity:.94;}
.hero-figure::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(8,63,50,.05) 0%,rgba(8,63,50,.42) 100%);
}
.hero-figure-cap{
  position:absolute;left:20px;bottom:18px;z-index:2;color:#fff;font-size:.875rem;font-weight:600;
  text-shadow:0 1px 8px rgba(8,63,50,.6);
}
.badge{
  display:inline-flex;align-items:center;gap:12px;
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--r-pill);
  padding:12px 20px;
  box-shadow:var(--shadow-1),inset 0 1px 0 rgba(255,255,255,.9);
}
.badge-num{
  font-size:1.75rem;font-weight:800;line-height:1;color:var(--brand-700);
  font-feature-settings:"tnum";letter-spacing:-.02em;
  background:var(--grad-brand);-webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent;
}
.badge-label{font-size:.8125rem;color:var(--ink-500);line-height:1.4;}
.hero-badges{display:flex;flex-wrap:wrap;gap:12px;margin-top:-28px;margin-left:18px;position:relative;z-index:3;}
.badge--accent{background:var(--accent-50);}
.badge--accent .badge-num{background:linear-gradient(135deg,#F2701F 0%,#FF8A3D 100%);-webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent;}

/* ---------- prep cards ---------- */
.prep-grid{display:grid;grid-template-columns:1.25fr 1fr 1fr;gap:24px;align-items:stretch;}
.card{
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--r-md);
  padding:30px 28px;
  box-shadow:var(--shadow-1);
  transition:transform .2s var(--ease),box-shadow .2s var(--ease),border-color .2s var(--ease);
}
.card:hover{transform:translateY(-4px);box-shadow:var(--shadow-2);}
.card--hero{
  border-radius:var(--r-lg);
  padding:36px 34px;
  background:linear-gradient(160deg,#ffffff 0%,#f2f8f4 100%);
  position:relative;overflow:hidden;
}
.card--hero::before{
  content:"";position:absolute;right:-60px;top:-60px;width:200px;height:200px;border-radius:50%;
  background:radial-gradient(circle,rgba(52,195,143,.22) 0%,rgba(52,195,143,0) 70%);
}
.card-icon{
  width:48px;height:48px;border-radius:14px;background:var(--grad-brand);color:#fff;
  display:flex;align-items:center;justify-content:center;font-weight:800;font-size:1.0625rem;
  margin-bottom:18px;box-shadow:inset 0 1px 0 rgba(255,255,255,.35);
}
.card h3{margin-bottom:12px;}
.card p{font-size:.9375rem;line-height:1.8;color:var(--ink-500);}
.card--vertical{padding-top:24px;position:relative;}
.card--vertical::before{
  content:"";position:absolute;left:28px;right:28px;top:0;height:3px;border-radius:0 0 3px 3px;background:var(--grad-brand);
}
.chip{
  display:inline-block;padding:5px 12px;border-radius:var(--r-pill);
  background:var(--paper-2);color:var(--ink-700);font-size:.8125rem;font-weight:600;line-height:1.5;
}
.chip--accent{background:var(--accent-50);color:var(--accent-600);}
.card .chip{margin-top:16px;}

/* ---------- timeline ---------- */
.timeline{position:relative;max-width:900px;}
.step{
  display:grid;grid-template-columns:64px 1fr;gap:24px;
  padding-bottom:36px;position:relative;
}
.step:last-child{padding-bottom:0;}
.step-node{
  position:relative;z-index:2;
  width:56px;height:56px;border-radius:50%;
  background:var(--grad-brand);color:#fff;
  display:flex;align-items:center;justify-content:center;
  font-weight:800;font-size:1rem;font-feature-settings:"tnum";
  box-shadow:0 8px 20px -12px rgba(8,63,50,.85),inset 0 1px 0 rgba(255,255,255,.4);
}
.step:not(:last-child) .step-node::after{
  content:"";position:absolute;left:50%;top:56px;transform:translateX(-50%);
  width:1px;height:calc(100% + 36px);background:linear-gradient(180deg,rgba(23,162,119,.45),rgba(23,162,119,.08));
  z-index:-1;
}
.step-body{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-md);
  padding:26px 28px;box-shadow:var(--shadow-1);
  transition:transform .2s var(--ease),box-shadow .2s var(--ease),border-color .2s var(--ease);
}
.step-body:hover{transform:translateY(-3px);box-shadow:var(--shadow-2);border-color:#d5e2d9;}
.step-body h3{margin-bottom:10px;}
.step-body p{font-size:.9375rem;color:var(--ink-500);line-height:1.8;}
.step-hint{
  display:inline-flex;align-items:center;gap:8px;margin-top:16px;
  font-size:.8125rem;font-weight:600;color:var(--brand-700);
  background:rgba(23,162,119,.09);border-radius:var(--r-pill);padding:6px 14px;
}
.step-hint::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--brand-500);}

/* ---------- split feature ---------- */
.split{display:grid;grid-template-columns:1fr 1fr;gap:48px;align-items:center;}
.split-figure{
  border-radius:var(--r-lg);overflow:hidden;box-shadow:var(--shadow-2);
  border:1px solid var(--line);aspect-ratio:16/11;background:var(--paper-2);
}
.split-figure img{width:100%;height:100%;object-fit:cover;transition:transform .3s var(--ease);}
.split-figure:hover img{transform:scale(1.03);}
.split h2{margin-bottom:18px;}
.point-list{margin:22px 0 26px;display:grid;gap:12px;}
.point-list li{
  display:flex;gap:12px;align-items:flex-start;
  font-size:.9375rem;line-height:1.75;color:var(--ink-700);
}
.point-list li::before{
  content:"";flex:0 0 auto;width:10px;height:10px;border-radius:50%;
  margin-top:8px;background:var(--grad-brand);
  box-shadow:0 0 0 4px rgba(23,162,119,.12);
}
.tipbar{
  display:flex;flex-wrap:wrap;align-items:center;gap:16px;justify-content:space-between;
  background:var(--surface);border:1px solid var(--line);border-left:4px solid transparent;
  border-image:linear-gradient(180deg,#0E7A5F,#34C38F) 1;
  border-radius:var(--r-sm);padding:20px 24px;margin-top:36px;
  box-shadow:var(--shadow-1);
}
.tipbar p{font-size:.9375rem;color:var(--ink-700);}

/* ---------- faq ---------- */
.faq-wrap{display:grid;grid-template-columns:340px 1fr;gap:48px;align-items:start;}
.faq-list{display:grid;gap:12px;}
.faq-item{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-md);
  box-shadow:var(--shadow-1);overflow:hidden;
  transition:box-shadow .2s var(--ease),border-color .2s var(--ease);
}
.faq-item.is-open{border-color:#cfe3d7;box-shadow:var(--shadow-2);}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:18px;
  padding:20px 24px;background:transparent;border:0;cursor:pointer;text-align:left;
  font-size:1.0625rem;font-weight:600;color:var(--ink-900);line-height:1.5;
}
.faq-q:hover{color:var(--brand-700);}
.faq-icon{
  flex:0 0 auto;width:28px;height:28px;border-radius:50%;
  border:1px solid var(--line);background:var(--paper);
  display:flex;align-items:center;justify-content:center;
  font-size:1rem;line-height:1;color:var(--brand-700);
  transition:transform .22s var(--ease),color .22s var(--ease),border-color .22s var(--ease),background .22s var(--ease);
}
.faq-item.is-open .faq-icon{transform:rotate(45deg);color:var(--accent-600);border-color:var(--accent-500);background:var(--accent-50);}
.faq-a{
  max-height:0;overflow:hidden;
  transition:max-height .28s var(--ease);
}
.faq-a-inner{
  padding:0 24px 22px;border-top:1px dashed var(--line);margin-top:2px;padding-top:18px;
  font-size:.9375rem;line-height:1.85;color:var(--ink-700);
}
.faq-a-inner p{font-size:.9375rem;color:var(--ink-700);}

/* ---------- cta ---------- */
.cta-band{
  position:relative;overflow:hidden;
  background:var(--brand-800);
  border-radius:var(--r-lg);
  padding:72px 40px;
  text-align:center;
  color:#fff;
}
.cta-band::before{
  content:"";position:absolute;left:-10%;top:-60%;width:60%;height:220%;border-radius:50%;
  background:radial-gradient(circle,rgba(52,195,143,.28) 0%,rgba(52,195,143,0) 68%);
}
.cta-band::after{
  content:"";position:absolute;right:-8%;bottom:-70%;width:55%;height:220%;border-radius:50%;
  background:radial-gradient(circle,rgba(255,138,61,.22) 0%,rgba(255,138,61,0) 68%);
}
.cta-band > *{position:relative;z-index:2;}
.cta-band h2{font-size:clamp(1.5rem,2.8vw,2.125rem);font-weight:700;line-height:1.3;color:#fff;margin-bottom:14px;}
.cta-band p{color:rgba(255,255,255,.82);max-width:38em;margin:0 auto 30px;font-size:1rem;}
.cta-band .btn-ghost{color:#fff;border-color:rgba(255,255,255,.6);}
.cta-band .btn-ghost:hover{background:rgba(255,255,255,.12);border-color:var(--accent-500);color:#fff;}
.cta-band .btn-row{justify-content:center;}

/* ---------- footer ---------- */
.site-footer{
  background:var(--brand-800);
  color:rgba(255,255,255,.72);
  border-top:1px solid rgba(255,255,255,.08);
  padding:72px 0 0;
  margin-top:104px;
}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:40px;}
.footer-brand .logo{color:#fff;margin-bottom:16px;}
.footer-brand .logo:hover{color:#fff;}
.footer-brand p{color:rgba(255,255,255,.66);font-size:.9375rem;line-height:1.8;max-width:30em;}
.footer-col h4{color:#fff;font-size:.9375rem;font-weight:700;margin-bottom:16px;letter-spacing:.02em;}
.footer-col ul{display:grid;gap:10px;}
.footer-col li, .footer-col span{font-size:.875rem;color:rgba(255,255,255,.64);line-height:1.7;}
.footer-col a{color:rgba(255,255,255,.72);font-size:.875rem;transition:color .18s var(--ease);}
.footer-col a:hover{color:var(--brand-400);}
.footer-bottom{
  margin-top:52px;padding:22px 0 28px;
  border-top:1px solid rgba(255,255,255,.08);
  display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;
  font-size:.8125rem;color:rgba(255,255,255,.5);
}

/* ---------- floating bar ---------- */
.float-bar{
  position:fixed;left:50%;bottom:16px;transform:translate(-50%,140%);
  width:min(1160px,calc(100% - 32px));
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--r-pill);
  box-shadow:var(--shadow-2);
  padding:10px 12px 10px 24px;
  display:flex;align-items:center;gap:16px;justify-content:space-between;
  z-index:70;
  transition:transform .3s var(--ease),opacity .3s var(--ease);
  opacity:0;
}
.float-bar.is-visible{transform:translate(-50%,0);opacity:1;}
.float-bar p{font-size:.9375rem;font-weight:600;color:var(--ink-900);margin:0;}
.float-bar .float-actions{display:flex;align-items:center;gap:10px;}
.float-close{
  width:34px;height:34px;border-radius:50%;border:1px solid var(--line);background:var(--paper);
  color:var(--ink-500);font-size:1rem;line-height:1;cursor:pointer;
  transition:color .18s var(--ease),border-color .18s var(--ease),background .18s var(--ease);
}
.float-close:hover{color:var(--accent-600);border-color:var(--accent-500);background:var(--accent-50);}

/* ---------- breadcrumb ---------- */
.breadcrumb{
  display:flex;flex-wrap:wrap;align-items:center;gap:8px;
  font-size:.875rem;color:var(--ink-500);
  padding:22px 0 0;
}
.breadcrumb a{color:var(--ink-500);transition:color .18s var(--ease);}
.breadcrumb a:hover{color:var(--brand-600);}
.breadcrumb .sep{color:#bcc9c2;}
.breadcrumb .current{color:var(--ink-900);font-weight:600;}

/* ---------- responsive ---------- */
@media screen and (max-width:1279px){
  .container{max-width:1120px;}
}
@media screen and (max-width:1023px){
  .container{padding-left:24px;padding-right:24px;}
  .section{padding:72px 0;}
  .section--tight{padding:56px 0;}
  .hero{padding:40px 0 64px;}
  .hero-inner{grid-template-columns:1fr;gap:36px;}
  .hero-visual{order:2;max-width:620px;}
  .hero-badges{margin-top:-24px;}
  .prep-grid{grid-template-columns:1fr 1fr;}
  .card--hero{grid-column:1 / -1;}
  .split{grid-template-columns:1fr;gap:32px;}
  .faq-wrap{grid-template-columns:1fr;gap:32px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
  .main-nav,.header-cta{display:none;}
  .nav-toggle{display:flex;}
  .footer-bottom{margin-top:40px;}
  .site-footer{margin-top:72px;}
}
@media screen and (max-width:767px){
  .step{grid-template-columns:48px 1fr;gap:16px;}
  .step-node{width:44px;height:44px;font-size:.875rem;}
  .step:not(:last-child) .step-node::after{top:44px;height:calc(100% + 32px);}
  .step-body{padding:20px 20px;}
  .cta-band{padding:52px 22px;border-radius:var(--r-md);}
  .float-bar{
    left:0;right:0;bottom:0;transform:translateY(140%);
    width:100%;border-radius:0;border-left:0;border-right:0;border-bottom:0;
    padding:10px 16px calc(10px + env(safe-area-inset-bottom));
    box-shadow:0 -8px 24px -16px rgba(8,63,50,.5);
  }
  .float-bar.is-visible{transform:translateY(0);}
  .float-bar p{font-size:.875rem;}
  body{padding-bottom:76px;}
}
@media screen and (max-width:519px){
  .container{padding-left:18px;padding-right:18px;}
  .section{padding:56px 0;}
  .hero h1{font-size:clamp(1.75rem,8vw,2.25rem);}
  .hero-sub{font-size:1rem;}
  .btn-row{width:100%;}
  .btn-row .btn{width:100%;}
  .btn-row .link-arrow{width:auto;}
  .prep-grid{grid-template-columns:1fr;}
  .hero-badges{margin-left:0;gap:10px;}
  .badge{padding:10px 16px;gap:10px;}
  .badge-num{font-size:1.5rem;}
  .footer-grid{grid-template-columns:1fr;}
  .tipbar{flex-direction:column;align-items:flex-start;}
  .float-bar{padding-left:14px;padding-right:14px;gap:10px;}
  .float-bar .btn{padding:10px 18px;font-size:.875rem;}
}

/* roulang page: category2 */
:root{
  --brand-600:#0E7A5F;
  --brand-700:#0B6B54;
  --brand-800:#083F32;
  --brand-500:#17A277;
  --brand-400:#34C38F;
  --grad-brand:linear-gradient(135deg,#0E7A5F 0%,#17A277 52%,#34C38F 100%);
  --accent-500:#FF8A3D;
  --accent-600:#F2701F;
  --accent-50:#FFF3EA;
  --ink-900:#16241F;
  --ink-700:#33443E;
  --ink-500:#5C6B66;
  --surface:#FFFFFF;
  --paper:#F5F7F3;
  --paper-2:#EDF2EC;
  --line:#E2E8E3;
  --r-lg:24px;
  --r-md:18px;
  --r-sm:12px;
  --r-pill:999px;
  --shadow-1:0 2px 4px rgba(8,63,50,.05),0 16px 32px -20px rgba(8,63,50,.22);
  --shadow-2:0 6px 12px rgba(8,63,50,.08),0 28px 48px -24px rgba(8,63,50,.30);
  --ease:cubic-bezier(.2,.7,.3,1);
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:-apple-system,"PingFang SC","Hiragino Sans GB","Source Han Sans SC","Microsoft YaHei",sans-serif;
  font-size:1rem;
  line-height:1.85;
  color:var(--ink-700);
  background:var(--paper);
  -webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4,h5,h6{
  margin:0 0 .5rem;
  color:var(--ink-900);
  font-weight:700;
  line-height:1.3;
  letter-spacing:-.01em;
}
p{margin:0 0 1rem;}
ul,ol{margin:0 0 1rem;padding-left:1.15rem;}
li{margin-bottom:.4rem;}
a{color:var(--brand-600);text-decoration:none;transition:color .2s var(--ease);}
a:hover{color:var(--brand-700);}
img{max-width:100%;display:block;object-fit:cover;}
button{font-family:inherit;}
:focus-visible{outline:2px solid var(--accent-500);outline-offset:2px;border-radius:6px;}
.container{
  width:100%;
  max-width:1200px;
  margin:0 auto;
  padding-left:32px;
  padding-right:32px;
}
@media (max-width:1023px){.container{padding-left:24px;padding-right:24px;}}
@media (max-width:639px){.container{padding-left:18px;padding-right:18px;}}

/* ---------- header ---------- */
.site-header{
  position:sticky;
  top:0;
  z-index:80;
  background:rgba(255,255,255,.97);
  border-bottom:1px solid var(--line);
  transition:box-shadow .22s var(--ease);
}
.site-header.is-scrolled{box-shadow:var(--shadow-1);}
.header-inner{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:24px;
  height:76px;
  transition:height .22s var(--ease);
}
.site-header.is-scrolled .header-inner{height:64px;}
.logo{
  display:inline-flex;
  align-items:center;
  gap:10px;
  color:var(--ink-900);
  font-weight:800;
  letter-spacing:-.01em;
  font-size:1.0625rem;
  white-space:nowrap;
}
.logo:hover{color:var(--brand-700);}
.logo-mark{
  width:32px;
  height:32px;
  border-radius:10px;
  background:var(--grad-brand);
  color:#fff;
  display:inline-flex;
  align-items:center;
  justify-content:center;
  font-size:1rem;
  font-weight:800;
  letter-spacing:0;
  box-shadow:inset 0 1px 0 rgba(255,255,255,.35);
}
.main-nav{
  display:flex;
  align-items:center;
  gap:6px;
}
.nav-link{
  position:relative;
  display:inline-block;
  padding:10px 14px;
  font-size:.9375rem;
  font-weight:600;
  color:var(--ink-700);
  border-radius:var(--r-sm);
  transition:color .18s var(--ease),transform .18s var(--ease),background-color .18s var(--ease);
}
.nav-link:hover{color:var(--brand-600);transform:translateY(-1px);background:var(--paper);}
.nav-link.is-active{color:var(--brand-700);}
.nav-link.is-active::after{
  content:"";
  position:absolute;
  left:14px;
  right:14px;
  bottom:2px;
  height:3px;
  border-radius:2px;
  background:var(--grad-brand);
}
.header-cta{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  padding:11px 22px;
  border-radius:var(--r-pill);
  background:var(--grad-brand);
  color:#fff;
  font-weight:600;
  font-size:.9375rem;
  white-space:nowrap;
  box-shadow:var(--shadow-1);
  transition:transform .2s var(--ease),filter .2s var(--ease),box-shadow .2s var(--ease);
}
.header-cta:hover{color:#fff;transform:translateY(-2px);filter:brightness(1.06);box-shadow:var(--shadow-2);}
.header-cta:active{transform:translateY(0);filter:brightness(.96);}
.nav-toggle{
  display:none;
  align-items:center;
  justify-content:center;
  width:44px;
  height:44px;
  border-radius:var(--r-sm);
  border:1px solid var(--line);
  background:var(--surface);
  color:var(--ink-900);
  font-size:1.125rem;
  cursor:pointer;
}
.nav-toggle:hover{background:var(--paper-2);}

/* ---------- drawer ---------- */
.drawer-mask{
  position:fixed;
  inset:0;
  background:rgba(8,63,50,.42);
  opacity:0;
  visibility:hidden;
  transition:opacity .24s var(--ease),visibility .24s var(--ease);
  z-index:90;
}
.drawer-mask.is-open{opacity:1;visibility:visible;}
.nav-drawer{
  position:fixed;
  top:0;
  right:0;
  bottom:0;
  width:min(320px,86vw);
  background:rgba(255,255,255,.97);
  border-left:1px solid var(--line);
  padding:22px 20px 32px;
  transform:translateX(102%);
  transition:transform .26s var(--ease);
  z-index:95;
  display:flex;
  flex-direction:column;
  gap:8px;
  overflow-y:auto;
}
.nav-drawer.is-open{transform:translateX(0);}
.drawer-head{
  display:flex;
  align-items:center;
  justify-content:space-between;
  padding-bottom:14px;
  margin-bottom:10px;
  border-bottom:1px solid var(--line);
}
.drawer-close{
  width:38px;height:38px;
  border-radius:var(--r-sm);
  border:1px solid var(--line);
  background:var(--surface);
  color:var(--ink-900);
  font-size:1.125rem;
  cursor:pointer;
}
.drawer-link{
  display:block;
  padding:13px 14px;
  border-radius:var(--r-sm);
  color:var(--ink-700);
  font-weight:600;
  font-size:.9375rem;
  background:transparent;
  transition:background-color .18s var(--ease),color .18s var(--ease);
}
.drawer-link:hover{background:var(--paper);color:var(--brand-700);}
.drawer-link.is-active{background:var(--paper-2);color:var(--brand-700);}
.drawer-cta{
  margin-top:14px;
  display:flex;
  align-items:center;
  justify-content:center;
  width:100%;
  padding:14px 20px;
  border-radius:var(--r-pill);
  background:var(--grad-brand);
  color:#fff;
  font-weight:600;
}
.drawer-cta:hover{color:#fff;filter:brightness(1.06);}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  padding:14px 28px;
  border-radius:var(--r-pill);
  font-size:.9375rem;
  font-weight:600;
  line-height:1.2;
  border:1.5px solid transparent;
  cursor:pointer;
  transition:transform .2s var(--ease),filter .2s var(--ease),box-shadow .2s var(--ease),background-color .2s var(--ease),color .2s var(--ease),border-color .2s var(--ease);
}
.btn-primary{
  background:var(--grad-brand);
  color:#fff;
  box-shadow:var(--shadow-1);
}
.btn-primary:hover{color:#fff;transform:translateY(-2px);filter:brightness(1.06);box-shadow:var(--shadow-2);}
.btn-primary:active{transform:translateY(0);filter:brightness(.94);}
.btn-ghost{
  background:transparent;
  border-color:var(--brand-600);
  color:var(--brand-700);
}
.btn-ghost:hover{background:var(--paper-2);border-color:var(--accent-500);color:var(--accent-600);transform:translateY(-2px);}
.btn-ghost:active{transform:translateY(0);}
.btn-light{
  background:#fff;
  color:var(--brand-700);
  box-shadow:var(--shadow-1);
}
.btn-light:hover{color:var(--brand-800);transform:translateY(-2px);box-shadow:var(--shadow-2);}
.btn-sm{padding:11px 22px;font-size:.875rem;}
.link-arrow{
  display:inline-flex;
  align-items:center;
  gap:6px;
  font-weight:600;
  color:var(--brand-600);
  background-image:linear-gradient(90deg,var(--brand-500),var(--accent-500));
  background-repeat:no-repeat;
  background-size:0% 2px;
  background-position:0 100%;
  padding-bottom:2px;
  transition:background-size .2s var(--ease),color .2s var(--ease);
}
.link-arrow:hover{color:var(--brand-700);background-size:100% 2px;}
.link-arrow i{transition:transform .2s var(--ease);}
.link-arrow:hover i{transform:translateX(4px);}

/* ---------- sections ---------- */
.section{padding:96px 0;}
.section--tight{padding:72px 0;}
.section--paper{background:var(--paper-2);}
.section-head{max-width:720px;margin-bottom:44px;}
.section-head--center{margin-left:auto;margin-right:auto;text-align:center;}
.eyebrow{
  display:inline-flex;
  align-items:center;
  gap:10px;
  font-size:.8125rem;
  font-weight:700;
  letter-spacing:.08em;
  color:var(--brand-600);
  margin-bottom:14px;
  text-transform:none;
}
.eyebrow::before{
  content:"";
  width:3px;
  height:14px;
  border-radius:2px;
  background:var(--grad-brand);
}
.section-head h2{
  font-size:clamp(1.5rem,2.6vw,2.125rem);
  font-weight:700;
  line-height:1.25;
  margin-bottom:12px;
}
.section-head h2::before{
  content:"";
  display:block;
  width:44px;
  height:4px;
  border-radius:2px;
  background:var(--grad-brand);
  margin-bottom:16px;
}
.section-head--center h2::before{margin-left:auto;margin-right:auto;}
.section-head p{color:var(--ink-500);margin-bottom:0;}

/* ---------- breadcrumb ---------- */
.crumbs{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:8px;
  font-size:.875rem;
  color:var(--ink-500);
  margin-bottom:26px;
}
.crumbs a{color:var(--ink-500);}
.crumbs a:hover{color:var(--brand-600);}
.crumbs .sep{color:#B9C4BE;}
.crumbs .current{color:var(--ink-900);font-weight:600;}

/* ---------- hero (居中版) ---------- */
.cat-hero{
  position:relative;
  overflow:hidden;
  background:
    radial-gradient(720px 340px at 18% 0%,rgba(23,162,119,.12),transparent 65%),
    radial-gradient(560px 320px at 86% 12%,rgba(255,138,61,.13),transparent 68%),
    var(--paper);
  padding:52px 0 84px;
  border-bottom:1px solid var(--line);
}
.cat-hero .hero-inner{
  max-width:820px;
  margin:0 auto;
  text-align:center;
}
.cat-hero h1{
  font-size:clamp(1.875rem,3.6vw,2.875rem);
  font-weight:800;
  line-height:1.2;
  letter-spacing:-.02em;
  margin-bottom:18px;
}
.cat-hero h1 .hl{
  background:var(--grad-brand);
  -webkit-background-clip:text;
  background-clip:text;
  color:transparent;
}
.cat-hero .lead{
  font-size:1.0625rem;
  line-height:1.78;
  color:var(--ink-500);
  max-width:38em;
  margin:0 auto 30px;
}
.hero-actions{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  justify-content:center;
  gap:14px;
}
.hero-note{
  margin-top:18px;
  font-size:.875rem;
  color:var(--ink-500);
}
.hero-note i{color:var(--brand-500);margin-right:6px;}
.hero-badges{
  display:flex;
  flex-wrap:wrap;
  justify-content:center;
  gap:14px;
  margin-top:36px;
}
.badge-card{
  display:inline-flex;
  align-items:center;
  gap:12px;
  padding:12px 20px;
  border-radius:var(--r-pill);
  background:#fff;
  border:1px solid var(--line);
  box-shadow:inset 0 1px 0 rgba(255,255,255,.9),var(--shadow-1);
}
.badge-card .num{
  font-size:1.5rem;
  font-weight:800;
  line-height:1;
  font-feature-settings:"tnum";
  background:var(--grad-brand);
  -webkit-background-clip:text;
  background-clip:text;
  color:transparent;
}
.badge-card .label{font-size:.8125rem;color:var(--ink-500);line-height:1.3;}

/* ---------- feature cards ---------- */
.grid-gap{margin-left:-13px;margin-right:-13px;}
.grid-gap > .cell{padding-left:13px;padding-right:13px;margin-bottom:26px;}
.feature-card{
  height:100%;
  display:flex;
  flex-direction:column;
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--r-lg);
  padding:30px 28px;
  box-shadow:var(--shadow-1);
  transition:transform .22s var(--ease),box-shadow .22s var(--ease),border-color .22s var(--ease);
}
.feature-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-2);border-color:#CEE0D6;}
.feature-icon{
  width:52px;height:52px;
  border-radius:16px;
  display:inline-flex;
  align-items:center;
  justify-content:center;
  background:var(--grad-brand);
  color:#fff;
  font-size:1.25rem;
  margin-bottom:20px;
  box-shadow:inset 0 1px 0 rgba(255,255,255,.35);
}
.feature-card h3{
  font-size:1.1875rem;
  font-weight:600;
  line-height:1.45;
  margin-bottom:12px;
}
.feature-card p{font-size:.9375rem;color:var(--ink-700);line-height:1.82;margin-bottom:16px;}
.tag-row{display:flex;flex-wrap:wrap;gap:8px;margin-top:auto;}
.tag{
  display:inline-block;
  padding:5px 12px;
  border-radius:var(--r-pill);
  background:var(--paper-2);
  color:var(--ink-500);
  font-size:.8125rem;
  font-weight:600;
}
.tag--accent{background:var(--accent-50);color:var(--accent-600);}

/* ---------- compare table ---------- */
.table-wrap{
  background:var(--surface);
  border-radius:var(--r-lg);
  padding:8px;
  border:1px solid var(--line);
  box-shadow:var(--shadow-1);
  overflow:hidden;
}
.compare-table{
  width:100%;
  border-collapse:separate;
  border-spacing:0;
  margin:0;
  font-size:.9375rem;
}
.compare-table th,
.compare-table td{
  padding:16px 20px;
  text-align:left;
  vertical-align:top;
  border-bottom:1px solid var(--line);
}
.compare-table thead th{
  background:var(--paper-2);
  color:var(--ink-900);
  font-weight:700;
  font-size:.875rem;
  letter-spacing:.02em;
}
.compare-table thead th:first-child{border-top-left-radius:14px;}
.compare-table thead th:last-child{border-top-right-radius:14px;}
.compare-table tbody th{
  width:26%;
  font-weight:700;
  color:var(--ink-900);
  background:transparent;
}
.compare-table tbody tr:nth-child(even){background:var(--paper);}
.compare-table tbody tr:last-child th,
.compare-table tbody tr:last-child td{border-bottom:none;}
.compare-table td{color:var(--ink-700);line-height:1.8;}
.compare-table .mini{display:block;color:var(--ink-500);font-size:.8125rem;font-weight:500;margin-top:4px;}

/* ---------- tip bar ---------- */
.tip-bar{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:16px;
  background:var(--accent-50);
  border-radius:var(--r-md);
  padding:20px 24px;
  border:1px solid #FBE0CD;
  margin-top:26px;
}
.tip-bar .bar-line{
  width:4px;
  align-self:stretch;
  min-height:36px;
  border-radius:4px;
  background:var(--grad-brand);
  flex:0 0 auto;
}
.tip-bar p{margin:0;font-size:.9375rem;color:var(--ink-700);flex:1 1 260px;}

/* ---------- scene ---------- */
.scene-wrap{
  display:grid;
  grid-template-columns:1.05fr .95fr;
  gap:52px;
  align-items:center;
}
.scene-media{
  position:relative;
  border-radius:var(--r-lg);
  overflow:hidden;
  box-shadow:var(--shadow-2);
  border:1px solid rgba(255,255,255,.6);
  aspect-ratio:16/11;
  background:var(--grad-brand);
}
.scene-media img{width:100%;height:100%;}
.scene-body h3{font-size:1.3125rem;font-weight:700;margin-bottom:14px;}
.check-list{list-style:none;padding:0;margin:0 0 20px;}
.check-list li{
  position:relative;
  padding-left:26px;
  margin-bottom:12px;
  font-size:.9375rem;
  line-height:1.8;
  color:var(--ink-700);
}
.check-list li::before{
  content:"";
  position:absolute;
  left:0;
  top:.62em;
  width:10px;height:10px;
  border-radius:50%;
  background:var(--grad-brand);
  box-shadow:0 0 0 4px rgba(23,162,119,.12);
}

/* ---------- faq ---------- */
.faq-list{max-width:900px;margin:0 auto;}
.faq-item{
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--r-md);
  padding:0 24px;
  margin-bottom:12px;
  box-shadow:var(--shadow-1);
  transition:border-color .2s var(--ease),box-shadow .2s var(--ease);
}
.faq-item[open]{border-color:#CDE3D8;box-shadow:var(--shadow-2);}
.faq-item summary{
  list-style:none;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:18px;
  padding:20px 0;
  cursor:pointer;
  font-size:1.0625rem;
  font-weight:600;
  color:var(--ink-900);
  line-height:1.5;
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-icon{
  flex:0 0 auto;
  width:30px;height:30px;
  border-radius:50%;
  border:1px solid var(--line);
  display:inline-flex;
  align-items:center;
  justify-content:center;
  color:var(--brand-600);
  font-size:1rem;
  transition:transform .22s var(--ease),color .22s var(--ease),border-color .22s var(--ease);
}
.faq-item[open] .faq-icon{transform:rotate(45deg);color:var(--accent-500);border-color:var(--accent-500);}
.faq-body{
  border-top:1px dashed var(--line);
  padding:16px 0 22px;
  font-size:.9375rem;
  line-height:1.85;
  color:var(--ink-700);
}
.faq-body p:last-child{margin-bottom:0;}

/* ---------- cta ---------- */
.cta-block{
  position:relative;
  overflow:hidden;
  background:var(--brand-800);
  border-radius:var(--r-lg);
  padding:72px 40px;
  text-align:center;
  color:#fff;
}
.cta-block::before{
  content:"";
  position:absolute;
  inset:-40% -10% auto -10%;
  height:120%;
  background:radial-gradient(600px 280px at 30% 0%,rgba(52,195,143,.26),transparent 70%),
             radial-gradient(520px 260px at 78% 100%,rgba(255,138,61,.20),transparent 72%);
  pointer-events:none;
}
.cta-block > *{position:relative;z-index:1;}
.cta-block h2{
  color:#fff;
  font-size:clamp(1.5rem,2.8vw,2.125rem);
  margin-bottom:14px;
}
.cta-block p{color:rgba(255,255,255,.82);max-width:36em;margin:0 auto 30px;font-size:1rem;}
.cta-actions{display:flex;flex-wrap:wrap;justify-content:center;gap:14px;}
.btn-outline-light{
  background:transparent;
  border:1.5px solid rgba(255,255,255,.6);
  color:#fff;
}
.btn-outline-light:hover{background:rgba(255,255,255,.12);border-color:#fff;color:#fff;transform:translateY(-2px);}

/* ---------- footer ---------- */
.site-footer{
  background:var(--brand-800);
  color:rgba(255,255,255,.72);
  border-top:1px solid rgba(255,255,255,.08);
  padding:64px 0 0;
  margin-top:96px;
}
.footer-grid{
  display:grid;
  grid-template-columns:1.4fr 1fr 1fr 1.2fr;
  gap:40px;
  padding-bottom:48px;
}
.footer-brand .logo{color:#fff;font-size:1.125rem;font-weight:800;margin-bottom:16px;}
.footer-brand .logo:hover{color:var(--brand-400);}
.footer-brand .logo-mark{background:var(--grad-brand);}
.footer-brand p{font-size:.875rem;line-height:1.8;color:rgba(255,255,255,.66);margin:0;max-width:26em;}
.footer-col h4{
  color:#fff;
  font-size:.9375rem;
  font-weight:700;
  margin-bottom:18px;
  letter-spacing:.02em;
}
.footer-col ul{list-style:none;padding:0;margin:0;}
.footer-col li{margin-bottom:11px;font-size:.875rem;line-height:1.7;}
.footer-col a{color:rgba(255,255,255,.72);}
.footer-col a:hover{color:var(--brand-400);}
.footer-col span{color:rgba(255,255,255,.66);}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.08);
  padding:22px 0 26px;
  display:flex;
  flex-wrap:wrap;
  justify-content:space-between;
  gap:10px;
  font-size:.8125rem;
  color:rgba(255,255,255,.55);
}

/* ---------- sticky convert bar ---------- */
.convert-bar{
  position:fixed;
  left:50%;
  bottom:16px;
  transform:translate(-50%,150%);
  width:calc(100% - 32px);
  max-width:900px;
  display:flex;
  align-items:center;
  gap:16px;
  padding:12px 14px 12px 24px;
  border-radius:var(--r-pill);
  background:var(--surface);
  border:1px solid var(--line);
  box-shadow:var(--shadow-2);
  z-index:70;
  opacity:0;
  visibility:hidden;
  transition:transform .28s var(--ease),opacity .28s var(--ease),visibility .28s var(--ease);
}
.convert-bar.is-visible{transform:translate(-50%,0);opacity:1;visibility:visible;}
.convert-bar.is-hidden{display:none;}
.convert-text{
  flex:1 1 auto;
  font-size:.9375rem;
  font-weight:600;
  color:var(--ink-900);
  line-height:1.4;
}
.convert-close{
  flex:0 0 auto;
  width:32px;height:32px;
  border-radius:50%;
  border:1px solid var(--line);
  background:var(--paper);
  color:var(--ink-500);
  font-size:1rem;
  line-height:1;
  cursor:pointer;
  transition:background-color .18s var(--ease),color .18s var(--ease);
}
.convert-close:hover{background:var(--paper-2);color:var(--ink-900);}

/* ---------- responsive ---------- */
@media (max-width:1279px){
  .container{max-width:1200px;}
}
@media (max-width:1023px){
  .main-nav,.header-cta{display:none;}
  .nav-toggle{display:inline-flex;}
  .section{padding:72px 0;}
  .section--tight{padding:56px 0;}
  .cat-hero{padding:40px 0 64px;}
  .scene-wrap{grid-template-columns:1fr;gap:32px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
  .compare-table tbody th{width:32%;}
  .site-footer{margin-top:72px;}
}
@media (max-width:767px){
  .compare-table th,.compare-table td{padding:14px 14px;}
  .compare-table{font-size:.875rem;}
  .cta-block{padding:52px 22px;border-radius:var(--r-md);}
}
@media (max-width:639px){
  body{font-size:.9688rem;}
  .section{padding:56px 0;}
  .section--tight{padding:48px 0;}
  .cat-hero{padding:32px 0 52px;}
  .cat-hero .lead{font-size:1rem;}
  .hero-actions{flex-direction:column;align-items:stretch;}
  .hero-actions .btn{width:100%;}
  .hero-badges{gap:10px;}
  .badge-card{padding:10px 16px;}
  .badge-card .num{font-size:1.25rem;}
  .feature-card{padding:24px 22px;}
  .footer-grid{grid-template-columns:1fr;gap:26px;padding-bottom:36px;}
  .footer-bottom{flex-direction:column;align-items:flex-start;}
  .compare-table thead{display:none;}
  .compare-table tbody th,.compare-table tbody td{display:block;width:100%;}
  .compare-table tbody th{border-bottom:none;padding-bottom:4px;font-size:.9375rem;}
  .compare-table tbody td{padding-top:0;}
  .compare-table tbody tr{border-bottom:1px solid var(--line);padding:6px 0;}
  .compare-table tbody tr:last-child{border-bottom:none;}
  .compare-table tbody tr:nth-child(even){background:var(--paper);}
  .convert-bar{
    left:0;right:0;bottom:0;
    width:100%;max-width:none;
    border-radius:16px 16px 0 0;
    transform:translateY(120%);
    padding:12px 14px calc(12px + env(safe-area-inset-bottom)) 18px;
    gap:10px;
  }
  .convert-bar.is-visible{transform:translateY(0);}
  .convert-text{font-size:.875rem;}
  .convert-bar .btn{padding:11px 18px;font-size:.875rem;white-space:nowrap;}
  body{padding-bottom:88px;}
  .faq-item{padding:0 18px;}
  .faq-item summary{font-size:1rem;padding:18px 0;}
  .tip-bar{padding:16px 18px;}
}

/* roulang page: category3 */
:root{
  --brand-600:#0E7A5F;
  --brand-700:#0B6B54;
  --brand-800:#083F32;
  --brand-500:#17A277;
  --brand-400:#34C38F;
  --grad-brand:linear-gradient(135deg,#0E7A5F 0%,#17A277 52%,#34C38F 100%);
  --accent-500:#FF8A3D;
  --accent-600:#F2701F;
  --accent-50:#FFF3EA;
  --ink-900:#16241F;
  --ink-700:#33443E;
  --ink-500:#5C6B66;
  --surface:#FFFFFF;
  --paper:#F5F7F3;
  --paper-2:#EDF2EC;
  --line:#E2E8E3;
  --r-lg:24px;
  --r-md:18px;
  --r-sm:12px;
  --r-pill:999px;
  --shadow-1:0 2px 4px rgba(8,63,50,.05),0 16px 32px -20px rgba(8,63,50,.22);
  --shadow-2:0 6px 12px rgba(8,63,50,.08),0 28px 48px -24px rgba(8,63,50,.30);
  --ease:cubic-bezier(.2,.7,.3,1);
  --nav-h:76px;
}

/* ===== reset / base ===== */
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  padding:0;
  font-family:-apple-system,"PingFang SC","Hiragino Sans GB","Source Han Sans SC","Microsoft YaHei",sans-serif;
  font-size:16px;
  line-height:1.85;
  color:var(--ink-700);
  background:var(--paper);
  -webkit-font-smoothing:antialiased;
  -moz-osx-font-smoothing:grayscale;
}
h1,h2,h3,h4,p,figure,blockquote{margin:0;}
ul,ol{margin:0;padding:0;list-style:none;}
img{display:block;max-width:100%;height:auto;}
a{color:var(--brand-600);text-decoration:none;transition:color .18s var(--ease);}
a:hover{color:var(--brand-700);}
button{font:inherit;color:inherit;}
input,textarea,select{font:inherit;}
table{border-collapse:collapse;border-spacing:0;}
:focus-visible{outline:2px solid var(--accent-500);outline-offset:2px;border-radius:8px;}

.skip-link{
  position:absolute;left:-9999px;top:0;z-index:200;
  background:var(--brand-700);color:#fff;padding:12px 20px;border-radius:0 0 var(--r-sm) 0;
}
.skip-link:focus{left:0;color:#fff;}

/* ===== container ===== */
.container{
  width:100%;
  max-width:1200px;
  margin:0 auto;
  padding:0 32px;
}

/* ===== header ===== */
.site-header{
  position:sticky;
  top:0;
  z-index:80;
  background:#FFFFFF;
  border-bottom:1px solid var(--line);
  transition:box-shadow .22s var(--ease);
}
.site-header.is-scrolled{box-shadow:var(--shadow-1);}
.header-inner{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:20px;
  height:var(--nav-h);
  transition:height .22s var(--ease);
}
.site-header.is-scrolled .header-inner{height:64px;}

.logo{display:inline-flex;align-items:center;gap:10px;color:var(--ink-900);}
.logo:hover{color:var(--ink-900);}
.logo-mark{
  width:36px;height:36px;flex:none;
  border-radius:12px;
  background:var(--grad-brand);
  color:#fff;
  display:grid;place-items:center;
  font-size:1.0625rem;font-weight:800;line-height:1;
  box-shadow:0 8px 18px -10px rgba(14,122,95,.9);
}
.logo-text{
  font-size:1.125rem;font-weight:800;letter-spacing:-.01em;
  color:var(--ink-900);white-space:nowrap;
}

.header-right{display:flex;align-items:center;gap:8px;}
.main-nav{display:flex;align-items:center;gap:2px;}
.nav-link{
  position:relative;
  display:inline-block;
  padding:8px 14px;
  border-radius:var(--r-pill);
  font-size:.9375rem;
  font-weight:600;
  color:var(--ink-700);
  transition:color .18s var(--ease),background .18s var(--ease),transform .18s var(--ease);
}
.nav-link:hover{color:var(--brand-600);background:var(--paper-2);transform:translateY(-1px);}
.nav-link.is-active{color:var(--brand-700);background:var(--paper-2);}
.nav-link.is-active::after{
  content:"";
  position:absolute;
  left:50%;bottom:-1px;
  transform:translateX(-50%);
  width:60%;height:3px;
  border-radius:3px;
  background:var(--grad-brand);
}
.nav-cta{margin-left:10px;}

.nav-toggle{
  display:none;
  width:44px;height:44px;
  flex-direction:column;
  justify-content:center;
  align-items:center;
  gap:5px;
  background:#fff;
  border:1px solid var(--line);
  border-radius:var(--r-sm);
  cursor:pointer;
  transition:border-color .18s var(--ease),background .18s var(--ease);
}
.nav-toggle:hover{border-color:var(--brand-400);background:var(--paper-2);}
.nav-toggle span{display:block;width:18px;height:2px;border-radius:2px;background:var(--ink-900);}

/* drawer */
.drawer-mask{
  position:fixed;inset:0;
  background:rgba(8,63,50,.45);
  z-index:110;
  opacity:0;
  visibility:hidden;
  transition:opacity .26s var(--ease),visibility .26s var(--ease);
}
.drawer-mask.is-open{opacity:1;visibility:visible;}
.nav-drawer{
  position:fixed;
  top:0;right:0;bottom:0;
  width:min(86vw,340px);
  background:#fff;
  z-index:120;
  padding:20px 20px 32px;
  display:flex;
  flex-direction:column;
  gap:18px;
  overflow-y:auto;
  transform:translateX(102%);
  transition:transform .28s var(--ease);
  box-shadow:-24px 0 60px -32px rgba(8,63,50,.55);
}
.nav-drawer.is-open{transform:translateX(0);}
.drawer-head{display:flex;align-items:center;justify-content:space-between;gap:12px;}
.drawer-close{
  width:38px;height:38px;flex:none;
  border-radius:50%;
  border:1px solid var(--line);
  background:var(--paper-2);
  font-size:1.25rem;
  line-height:1;
  color:var(--ink-700);
  cursor:pointer;
  display:grid;place-items:center;
  transition:background .18s var(--ease),color .18s var(--ease);
}
.drawer-close:hover{background:var(--accent-50);color:var(--accent-600);}
.drawer-nav{display:flex;flex-direction:column;gap:4px;}
.drawer-nav a{
  display:block;
  padding:13px 14px;
  border-radius:var(--r-sm);
  font-size:1rem;
  font-weight:600;
  color:var(--ink-900);
  transition:background .18s var(--ease),color .18s var(--ease);
}
.drawer-nav a:hover{background:var(--paper-2);color:var(--brand-700);}
.drawer-nav a.is-active{background:var(--paper-2);color:var(--brand-700);}
.drawer-foot{margin-top:auto;display:flex;flex-direction:column;gap:10px;}
.drawer-note{font-size:.8125rem;color:var(--ink-500);line-height:1.7;}

/* ===== buttons ===== */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:14px 28px;
  border:0;
  border-radius:var(--r-pill);
  font-size:.9375rem;
  font-weight:600;
  line-height:1.1;
  cursor:pointer;
  white-space:nowrap;
  transition:transform .2s var(--ease),box-shadow .2s var(--ease),background .2s var(--ease),color .2s var(--ease),border-color .2s var(--ease),filter .2s var(--ease);
}
.btn-primary{
  background:var(--grad-brand);
  color:#fff;
  box-shadow:0 10px 22px -14px rgba(14,122,95,.95);
}
.btn-primary:hover{color:#fff;transform:translateY(-2px);box-shadow:var(--shadow-2);filter:brightness(1.06);}
.btn-primary:active{transform:translateY(0);filter:brightness(.96);}
.btn-ghost{
  background:transparent;
  color:var(--brand-700);
  border:1.5px solid var(--brand-600);
  padding:12.5px 26.5px;
}
.btn-ghost:hover{background:var(--paper-2);border-color:var(--accent-500);color:var(--accent-600);}
.btn-sm{padding:10px 20px;font-size:.875rem;}
.btn-block{width:100%;}
.btn-on-dark{
  background:transparent;
  color:#fff;
  border:1.5px solid rgba(255,255,255,.55);
  padding:12.5px 26.5px;
}
.btn-on-dark:hover{background:rgba(255,255,255,.14);color:#fff;border-color:#fff;}
.btn-solid-light{background:#fff;color:var(--brand-700);box-shadow:0 12px 26px -16px rgba(0,0,0,.5);}
.btn-solid-light:hover{background:#fff;color:var(--brand-800);transform:translateY(-2px);box-shadow:var(--shadow-2);}

/* ===== text link ===== */
.link-arrow{
  display:inline-flex;align-items:center;gap:6px;
  font-size:.9375rem;font-weight:600;
  color:var(--brand-600);
  background-image:var(--grad-brand);
  background-repeat:no-repeat;
  background-size:0% 2px;
  background-position:0 100%;
  padding-bottom:2px;
  transition:background-size .2s var(--ease),color .18s var(--ease);
}
.link-arrow::after{content:"→";transition:transform .2s var(--ease);display:inline-block;}
.link-arrow:hover{color:var(--brand-700);background-size:100% 2px;}
.link-arrow:hover::after{transform:translateX(4px);}

/* ===== eyebrow ===== */
.eyebrow{
  display:inline-flex;align-items:center;gap:10px;
  font-size:.8125rem;
  font-weight:700;
  letter-spacing:.08em;
  color:var(--brand-600);
}
.eyebrow::before{
  content:"";
  width:3px;height:14px;
  border-radius:2px;
  background:var(--grad-brand);
  flex:none;
}

/* ===== breadcrumb ===== */
.breadcrumb{
  display:flex;align-items:center;flex-wrap:wrap;gap:8px;
  font-size:.875rem;
  color:var(--ink-500);
  padding-top:22px;
}
.breadcrumb a{color:var(--ink-500);}
.breadcrumb a:hover{color:var(--brand-600);}
.breadcrumb .sep{color:#B9C6C0;}
.breadcrumb .current{color:var(--ink-900);font-weight:600;}

/* ===== hero ===== */
.page-hero{
  position:relative;
  overflow:hidden;
  padding:34px 0 68px;
  background:linear-gradient(180deg,#FFFFFF 0%,var(--paper) 100%);
}
.page-hero::before{
  content:"";
  position:absolute;
  top:-220px;right:-120px;
  width:560px;height:560px;
  border-radius:50%;
  background:radial-gradient(circle,rgba(23,162,119,.16),rgba(23,162,119,0) 62%);
  pointer-events:none;
}
.page-hero::after{
  content:"";
  position:absolute;
  bottom:-180px;left:-140px;
  width:440px;height:440px;
  border-radius:50%;
  background:radial-gradient(circle,rgba(255,138,61,.14),rgba(255,138,61,0) 64%);
  pointer-events:none;
}
.hero-center{
  position:relative;
  z-index:1;
  max-width:840px;
  margin:0 auto;
  text-align:center;
  padding-top:34px;
}
.hero-center h1{
  margin-top:18px;
  font-size:clamp(1.75rem,3.9vw,2.875rem);
  font-weight:800;
  line-height:1.18;
  letter-spacing:-.02em;
  color:var(--ink-900);
}
.hero-lead{
  max-width:34em;
  margin:18px auto 0;
  font-size:1.0625rem;
  line-height:1.78;
  color:var(--ink-500);
}
.hero-actions{
  display:flex;
  flex-wrap:wrap;
  gap:14px;
  justify-content:center;
  margin-top:30px;
}
.hero-hint{
  margin-top:16px;
  font-size:.8125rem;
  color:var(--ink-500);
}

/* ===== stat chips ===== */
.stat-row{
  display:flex;
  flex-wrap:wrap;
  gap:14px;
  justify-content:center;
  margin-top:34px;
}
.stat-badge{
  display:inline-flex;
  flex-direction:column;
  align-items:flex-start;
  gap:2px;
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--r-pill);
  padding:10px 22px;
  box-shadow:var(--shadow-1),inset 0 1px 0 #FFFFFF;
  text-align:left;
}
.stat-badge strong{
  font-size:1.5rem;
  font-weight:800;
  line-height:1.2;
  background:var(--grad-brand);
  -webkit-background-clip:text;
  background-clip:text;
  color:transparent;
  font-feature-settings:"tnum";
}
.stat-badge span{font-size:.8125rem;color:var(--ink-500);line-height:1.5;}

/* ===== section base ===== */
.section{padding:76px 0;}
.section-head{max-width:640px;margin-bottom:34px;}
.section-head h2{
  margin-top:12px;
  font-size:clamp(1.5rem,2.6vw,2.125rem);
  font-weight:700;
  line-height:1.28;
  color:var(--ink-900);
}
.section-head p{margin-top:12px;font-size:1rem;color:var(--ink-500);line-height:1.8;}

/* ===== faq layout ===== */
.faq-section{padding:8px 0 88px;}
.faq-layout{
  display:grid;
  grid-template-columns:minmax(0,1fr) 316px;
  gap:44px;
  align-items:start;
}
.faq-groups{display:flex;flex-direction:column;gap:44px;}
.faq-group{scroll-margin-top:104px;}
.group-head{
  display:flex;
  align-items:center;
  gap:14px;
  margin-bottom:18px;
}
.group-index{
  flex:none;
  width:40px;height:40px;
  border-radius:14px;
  background:var(--grad-brand);
  color:#fff;
  display:grid;place-items:center;
  font-size:.9375rem;
  font-weight:800;
  font-feature-settings:"tnum";
  box-shadow:0 10px 20px -12px rgba(14,122,95,.9);
}
.group-head h2{
  font-size:clamp(1.25rem,2vw,1.4375rem);
  font-weight:700;
  line-height:1.3;
  color:var(--ink-900);
}
.group-head .group-sub{
  margin-left:2px;
  font-size:.8125rem;
  font-weight:600;
  color:var(--ink-500);
  background:var(--paper-2);
  border-radius:var(--r-pill);
  padding:3px 12px;
}

/* faq item */
.faq-list{display:flex;flex-direction:column;gap:12px;}
.faq-item{
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--r-md);
  box-shadow:var(--shadow-1);
  transition:box-shadow .22s var(--ease),border-color .22s var(--ease),transform .22s var(--ease);
}
.faq-item:hover{border-color:#CFE3DA;box-shadow:var(--shadow-2);}
.faq-item[open]{border-color:#C7DFD4;}
.faq-item summary{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  padding:19px 24px;
  cursor:pointer;
  list-style:none;
  font-size:1.0625rem;
  font-weight:600;
  line-height:1.55;
  color:var(--ink-900);
  transition:color .18s var(--ease);
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary:hover{color:var(--brand-700);}
.faq-icon{
  flex:none;
  width:28px;height:28px;
  border-radius:50%;
  border:1.5px solid var(--line);
  position:relative;
  display:grid;place-items:center;
  transition:transform .22s var(--ease),border-color .22s var(--ease),background .22s var(--ease);
}
.faq-icon::before,
.faq-icon::after{
  content:"";
  position:absolute;
  border-radius:2px;
  background:var(--brand-600);
  transition:background .22s var(--ease);
}
.faq-icon::before{width:12px;height:2px;}
.faq-icon::after{width:2px;height:12px;}
.faq-item[open] .faq-icon{
  transform:rotate(45deg);
  border-color:var(--accent-500);
  background:var(--accent-50);
}
.faq-item[open] .faq-icon::before,
.faq-item[open] .faq-icon::after{background:var(--accent-600);}
.faq-body{
  margin:0 24px 22px;
  padding-top:16px;
  border-top:1px dashed var(--line);
  font-size:.9375rem;
  line-height:1.88;
  color:var(--ink-700);
}
.faq-body p + p{margin-top:10px;}
.faq-body strong{color:var(--ink-900);font-weight:600;}

/* ===== toc / sidebar ===== */
.side-col{position:relative;}
.toc-card{
  position:sticky;
  top:100px;
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--r-md);
  box-shadow:var(--shadow-1);
  padding:26px 22px;
}
.toc-card h3{
  font-size:1rem;
  font-weight:700;
  color:var(--ink-900);
  margin-bottom:14px;
}
.toc-list{display:flex;flex-direction:column;gap:4px;}
.toc-list a{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:10px;
  padding:10px 12px;
  border-radius:var(--r-sm);
  font-size:.9375rem;
  font-weight:600;
  color:var(--ink-700);
  transition:background .18s var(--ease),color .18s var(--ease),transform .18s var(--ease);
}
.toc-list a:hover{background:var(--paper-2);color:var(--brand-700);transform:translateX(2px);}
.toc-list a span{font-size:.8125rem;font-weight:700;color:var(--brand-500);font-feature-settings:"tnum";}
.toc-divider{height:1px;background:var(--line);margin:18px 0;}
.toc-note{font-size:.8125rem;line-height:1.75;color:var(--ink-500);}
.toc-action{margin-top:16px;}

.mini-card{
  margin-top:20px;
  background:var(--accent-50);
  border:1px solid #FBDCC5;
  border-radius:var(--r-md);
  padding:22px;
}
.mini-card h3{font-size:.9375rem;font-weight:700;color:var(--ink-900);margin-bottom:8px;}
.mini-card p{font-size:.8125rem;line-height:1.75;color:#8A5A38;}

/* ===== still-card ===== */
.still-wrap{padding:0 0 88px;}
.still-card{
  display:grid;
  grid-template-columns:minmax(0,1.15fr) minmax(0,.85fr);
  gap:36px;
  align-items:center;
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--r-lg);
  box-shadow:var(--shadow-1);
  padding:40px;
  overflow:hidden;
}
.still-card h2{
  margin-top:12px;
  font-size:clamp(1.375rem,2.2vw,1.75rem);
  font-weight:700;
  line-height:1.3;
  color:var(--ink-900);
}
.still-card p{margin-top:12px;font-size:.9375rem;line-height:1.85;color:var(--ink-500);}
.still-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:24px;}
.still-media{
  position:relative;
  border-radius:var(--r-md);
  overflow:hidden;
  box-shadow:var(--shadow-1);
  aspect-ratio:16/11;
  background:var(--grad-brand);
}
.still-media img{width:100%;height:100%;object-fit:cover;}
.still-media::after{
  content:"";
  position:absolute;inset:0;
  border:1px solid rgba(255,255,255,.35);
  border-radius:inherit;
  pointer-events:none;
}

/* ===== final cta ===== */
.final-cta{
  position:relative;
  overflow:hidden;
  background:var(--grad-brand);
  padding:84px 0;
  text-align:center;
}
.final-cta::before{
  content:"";
  position:absolute;
  top:-160px;left:50%;
  transform:translateX(-50%);
  width:760px;height:520px;
  border-radius:50%;
  background:radial-gradient(circle,rgba(255,255,255,.18),rgba(255,255,255,0) 62%);
  pointer-events:none;
}
.cta-inner{position:relative;z-index:1;max-width:760px;margin:0 auto;}
.cta-inner h2{
  font-size:clamp(1.5rem,2.8vw,2.125rem);
  font-weight:800;
  line-height:1.3;
  color:#fff;
  letter-spacing:-.01em;
}
.cta-inner p{
  margin-top:14px;
  font-size:1rem;
  line-height:1.8;
  color:rgba(255,255,255,.86);
}
.cta-actions{
  display:flex;
  flex-wrap:wrap;
  gap:14px;
  justify-content:center;
  margin-top:30px;
}

/* ===== footer ===== */
.site-footer{
  background:var(--brand-800);
  color:rgba(255,255,255,.72);
  border-top:1px solid rgba(255,255,255,.08);
  padding-top:64px;
}
.footer-grid{
  display:grid;
  grid-template-columns:1.6fr 1fr 1fr 1.2fr;
  gap:40px;
  padding-bottom:48px;
}
.footer-brand .logo{margin-bottom:16px;}
.footer-brand .logo-text{color:#fff;}
.footer-brand p{font-size:.875rem;line-height:1.85;color:rgba(255,255,255,.68);max-width:26em;}
.footer-col h4{
  font-size:.9375rem;
  font-weight:700;
  color:#fff;
  margin-bottom:16px;
  letter-spacing:.01em;
}
.footer-col ul{display:flex;flex-direction:column;gap:10px;}
.footer-col li{font-size:.875rem;line-height:1.7;color:rgba(255,255,255,.68);}
.footer-col a{color:rgba(255,255,255,.72);transition:color .18s var(--ease);}
.footer-col a:hover{color:var(--brand-400);}
.footer-bottom{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  justify-content:space-between;
  gap:12px;
  border-top:1px solid rgba(255,255,255,.08);
  padding:20px 0 26px;
  font-size:.8125rem;
  color:rgba(255,255,255,.52);
}

/* ===== bottom convert bar ===== */
.convert-bar{
  position:fixed;
  left:0;right:0;bottom:0;
  z-index:90;
  display:none;
  align-items:center;
  justify-content:space-between;
  gap:12px;
  padding:10px 16px calc(10px + env(safe-area-inset-bottom));
  background:#fff;
  border-top:1px solid var(--line);
  box-shadow:0 -14px 30px -22px rgba(8,63,50,.5);
}
.convert-bar .convert-text{
  font-size:.8125rem;
  font-weight:600;
  color:var(--ink-700);
  line-height:1.4;
  max-width:14em;
}
.convert-bar .btn{padding:10px 18px;font-size:.875rem;}
.convert-close{
  flex:none;
  width:30px;height:30px;
  border-radius:50%;
  border:1px solid var(--line);
  background:var(--paper-2);
  color:var(--ink-500);
  font-size:1rem;
  line-height:1;
  cursor:pointer;
  display:grid;place-items:center;
  transition:background .18s var(--ease),color .18s var(--ease);
}
.convert-close:hover{background:var(--accent-50);color:var(--accent-600);}

.convert-pill{
  position:fixed;
  left:50%;
  bottom:18px;
  transform:translate(-50%,140%);
  z-index:90;
  display:flex;
  align-items:center;
  gap:16px;
  background:#fff;
  border:1px solid var(--line);
  border-radius:var(--r-pill);
  box-shadow:var(--shadow-2);
  padding:10px 14px 10px 22px;
  opacity:0;
  transition:transform .3s var(--ease),opacity .3s var(--ease);
}
.convert-pill.is-visible{transform:translate(-50%,0);opacity:1;}
.convert-pill span{font-size:.875rem;font-weight:600;color:var(--ink-700);white-space:nowrap;}

/* ===== reveal ===== */
.reveal{opacity:0;transform:translateY(16px);transition:opacity .5s var(--ease),transform .5s var(--ease);}
.reveal.is-in{opacity:1;transform:translateY(0);}

/* ===== responsive ===== */
@media (max-width:1279px){
  .container{max-width:1200px;}
}
@media (max-width:1023px){
  .container{padding:0 24px;}
  .section{padding:64px 0;}
  .faq-section{padding:4px 0 72px;}
  .faq-layout{grid-template-columns:minmax(0,1fr);gap:32px;}
  .side-col{order:2;}
  .toc-card{position:static;}
  .still-card{grid-template-columns:minmax(0,1fr);padding:32px;gap:28px;}
  .still-media{order:-1;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
  .page-hero{padding:22px 0 56px;}
  .hero-center{padding-top:24px;}
  .final-cta{padding:68px 0;}
}
@media (max-width:960px){
  .header-right{display:none;}
  .nav-toggle{display:inline-flex;}
  .convert-pill{display:none;}
  .convert-bar{display:flex;}
  body{padding-bottom:88px;}
}
@media (max-width:639px){
  .container{padding:0 18px;}
  .section{padding:52px 0;}
  .faq-section{padding:0 0 58px;}
  .still-wrap{padding:0 0 58px;}
  .page-hero{padding:16px 0 44px;}
  .hero-center h1{font-size:clamp(1.6rem,7vw,2rem);}
  .hero-lead{font-size:1rem;line-height:1.78;}
  .hero-actions{flex-direction:column;align-items:stretch;}
  .hero-actions .btn{width:100%;}
  .hero-actions .btn-ghost{width:100%;}
  .stat-row{gap:10px;}
  .stat-badge{padding:9px 18px;flex:1 1 auto;}
  .stat-badge strong{font-size:1.25rem;}
  .faq-groups{gap:36px;}
  .faq-item summary{padding:16px 18px;font-size:1rem;}
  .faq-body{margin:0 18px 18px;font-size:.9375rem;}
  .still-card{padding:24px;border-radius:var(--r-md);}
  .still-actions{flex-direction:column;align-items:stretch;}
  .still-actions .btn{width:100%;}
  .cta-actions{flex-direction:column;align-items:stretch;}
  .cta-actions .btn{width:100%;}
  .footer-grid{grid-template-columns:1fr;gap:28px;padding-bottom:36px;}
  .footer-bottom{flex-direction:column;align-items:flex-start;gap:6px;}
  .logo-text{font-size:1rem;}
  .convert-bar .convert-text{max-width:10em;font-size:.75rem;}
  .final-cta{padding:56px 0;}
}
@media (prefers-reduced-motion:reduce){
  *{animation-duration:.001ms !important;transition-duration:.001ms !important;scroll-behavior:auto !important;}
  .reveal{opacity:1;transform:none;}
}

/* roulang page: category4 */
:root{
  --brand-800:#083F32;
  --brand-700:#0B6B54;
  --brand-600:#0E7A5F;
  --brand-500:#17A277;
  --brand-400:#34C38F;
  --grad-brand:linear-gradient(135deg,#0E7A5F 0%,#17A277 52%,#34C38F 100%);
  --accent-500:#FF8A3D;
  --accent-600:#F2701F;
  --accent-50:#FFF3EA;
  --ink-900:#16241F;
  --ink-700:#33443E;
  --ink-500:#5C6B66;
  --surface:#FFFFFF;
  --paper:#F5F7F3;
  --paper-2:#EDF2EC;
  --line:#E2E8E3;
  --r-lg:24px;
  --r-md:18px;
  --r-sm:12px;
  --r-pill:999px;
  --shadow-1:0 2px 4px rgba(8,63,50,.05),0 16px 32px -20px rgba(8,63,50,.22);
  --shadow-2:0 6px 12px rgba(8,63,50,.08),0 28px 48px -24px rgba(8,63,50,.30);
  --ease:cubic-bezier(.2,.7,.3,1);
  --font:-apple-system,BlinkMacSystemFont,"PingFang SC","Hiragino Sans GB","Source Han Sans SC","Microsoft YaHei",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:1rem;
  line-height:1.85;
  color:var(--ink-700);
  background:var(--paper);
  -webkit-font-smoothing:antialiased;
}
body.no-scroll{overflow:hidden;}
h1,h2,h3,h4,p,ul,ol,figure,blockquote{margin:0;}
ul,ol{padding:0;list-style:none;}
a{color:var(--brand-600);text-decoration:none;transition:color .18s var(--ease);}
a:hover{color:var(--brand-700);}
img{max-width:100%;height:auto;display:block;}
button{font-family:inherit;}
:focus-visible{outline:2px solid var(--accent-500);outline-offset:2px;border-radius:6px;}
.container{
  width:100%;
  max-width:1200px;
  margin:0 auto;
  padding-left:32px;
  padding-right:32px;
}
@media (max-width:1023px){.container{padding-left:24px;padding-right:24px;}}
@media (max-width:639px){.container{padding-left:18px;padding-right:18px;}}

/* ---------- 通用组件 ---------- */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  padding:14px 28px;
  border:0;
  border-radius:var(--r-pill);
  font-size:.9688rem;
  font-weight:600;
  line-height:1;
  cursor:pointer;
  white-space:nowrap;
  transition:transform .18s var(--ease),box-shadow .18s var(--ease),filter .18s var(--ease),background-color .18s var(--ease),color .18s var(--ease),border-color .18s var(--ease);
}
.btn-primary{
  background:var(--grad-brand);
  color:#fff;
  box-shadow:0 10px 24px -14px rgba(14,122,95,.9);
}
.btn-primary:hover{color:#fff;filter:brightness(1.06);transform:translateY(-2px);box-shadow:var(--shadow-2);}
.btn-primary:active{transform:translateY(0);filter:brightness(.96);}
.btn-ghost{
  background:transparent;
  border:1.5px solid var(--brand-600);
  color:var(--brand-700);
}
.btn-ghost:hover{background:var(--paper-2);border-color:var(--accent-500);color:var(--accent-600);}
.btn-ghost-light{
  background:transparent;
  border:1.5px solid rgba(255,255,255,.62);
  color:#fff;
}
.btn-ghost-light:hover{background:rgba(255,255,255,.14);border-color:#fff;color:#fff;}
.btn-sm{padding:11px 20px;font-size:.9063rem;}
.link-more{
  display:inline-flex;
  align-items:center;
  gap:6px;
  font-weight:600;
  color:var(--brand-600);
  font-size:.9375rem;
  padding-bottom:2px;
  background-image:var(--grad-brand);
  background-repeat:no-repeat;
  background-position:0 100%;
  background-size:0 2px;
  transition:background-size .18s var(--ease),color .18s var(--ease);
}
.link-more:hover{color:var(--brand-700);background-size:100% 2px;}
.link-more .arrow{transition:transform .18s var(--ease);}
.link-more:hover .arrow{transform:translateX(4px);}
.eyebrow{
  display:inline-flex;
  align-items:center;
  gap:10px;
  font-size:.8125rem;
  font-weight:700;
  letter-spacing:.08em;
  color:var(--brand-600);
  text-transform:none;
}
.eyebrow::before{
  content:"";
  display:block;
  width:4px;
  height:14px;
  border-radius:2px;
  background:var(--grad-brand);
}
.section{padding:104px 0;}
.section-head{max-width:720px;margin-bottom:44px;}
.section-head h2{
  font-size:clamp(1.5rem,2.6vw,2.125rem);
  font-weight:700;
  line-height:1.25;
  color:var(--ink-900);
  margin:14px 0 12px;
  letter-spacing:-.01em;
}
.section-head p{color:var(--ink-500);font-size:1rem;line-height:1.85;}
@media (max-width:1023px){.section{padding:72px 0;}.section-head{margin-bottom:32px;}}
@media (max-width:639px){.section{padding:56px 0;}.section-head{margin-bottom:26px;}}

.tag{
  display:inline-flex;
  align-items:center;
  padding:5px 12px;
  border-radius:var(--r-pill);
  background:var(--paper-2);
  color:var(--ink-700);
  font-size:.8125rem;
  font-weight:600;
}
.tag-accent{background:var(--accent-50);color:var(--accent-600);}

/* ---------- 顶部导航 ---------- */
.site-header{
  position:sticky;
  top:0;
  z-index:80;
  background:var(--surface);
  border-bottom:1px solid transparent;
  transition:box-shadow .2s var(--ease),border-color .2s var(--ease);
}
.site-header.is-scrolled{border-bottom-color:var(--line);box-shadow:var(--shadow-1);}
.header-inner{
  display:flex;
  align-items:center;
  gap:24px;
  min-height:76px;
  transition:min-height .2s var(--ease);
}
.site-header.is-scrolled .header-inner{min-height:64px;}
.logo{
  display:inline-flex;
  align-items:center;
  gap:10px;
  flex:0 0 auto;
}
.logo-mark{
  width:32px;
  height:32px;
  border-radius:10px;
  background:var(--grad-brand);
  color:#fff;
  font-size:1.0625rem;
  font-weight:800;
  display:inline-flex;
  align-items:center;
  justify-content:center;
  box-shadow:inset 0 1px 0 rgba(255,255,255,.4);
}
.logo-text{
  font-size:1.125rem;
  font-weight:800;
  letter-spacing:-.01em;
  color:var(--ink-900);
  white-space:nowrap;
}
.logo:hover .logo-text{color:var(--brand-700);}
.main-nav{
  display:flex;
  align-items:center;
  gap:28px;
  margin-left:auto;
}
.nav-link{
  position:relative;
  padding:6px 0;
  font-size:.9375rem;
  font-weight:600;
  color:var(--ink-700);
  transition:color .18s var(--ease),transform .18s var(--ease);
}
.nav-link::after{
  content:"";
  position:absolute;
  left:0;
  bottom:-4px;
  height:3px;
  width:0;
  border-radius:3px;
  background:var(--grad-brand);
  transition:width .24s var(--ease);
}
.nav-link:hover{color:var(--brand-600);transform:translateY(-1px);}
.nav-link.is-active{color:var(--brand-700);}
.nav-link.is-active::after{width:60%;}
.header-actions{display:flex;align-items:center;gap:12px;flex:0 0 auto;}
.nav-toggle{
  display:none;
  width:42px;
  height:42px;
  padding:0;
  border:1px solid var(--line);
  border-radius:12px;
  background:var(--surface);
  cursor:pointer;
  align-items:center;
  justify-content:center;
  flex-direction:column;
  gap:5px;
}
.nav-toggle span{
  display:block;
  width:18px;
  height:2px;
  border-radius:2px;
  background:var(--ink-900);
  transition:transform .2s var(--ease),opacity .2s var(--ease);
}
.nav-toggle[aria-expanded="true"] span:nth-child(1){transform:translateY(7px) rotate(45deg);}
.nav-toggle[aria-expanded="true"] span:nth-child(2){opacity:0;}
.nav-toggle[aria-expanded="true"] span:nth-child(3){transform:translateY(-7px) rotate(-45deg);}

.drawer-mask{
  position:fixed;
  inset:0;
  z-index:90;
  background:rgba(8,63,50,.42);
  opacity:0;
  transition:opacity .22s var(--ease);
}
.drawer-mask.is-open{opacity:1;}
.mobile-drawer{
  position:fixed;
  top:0;
  right:0;
  z-index:95;
  width:min(320px,84vw);
  height:100%;
  padding:26px 22px 32px;
  background:rgba(255,255,255,.97);
  box-shadow:var(--shadow-2);
  transform:translateX(102%);
  transition:transform .26s var(--ease);
  display:flex;
  flex-direction:column;
  gap:8px;
  overflow-y:auto;
}
.mobile-drawer.is-open{transform:translateX(0);}
.mobile-drawer .drawer-title{
  font-size:.8125rem;
  font-weight:700;
  letter-spacing:.08em;
  color:var(--brand-600);
  margin-bottom:8px;
}
.mobile-drawer a{
  display:block;
  padding:13px 14px;
  border-radius:var(--r-sm);
  font-size:1rem;
  font-weight:600;
  color:var(--ink-700);
  background:var(--paper);
}
.mobile-drawer a:hover{background:var(--paper-2);color:var(--brand-700);}
.mobile-drawer a.is-active{background:var(--accent-50);color:var(--accent-600);}
.mobile-drawer .btn{width:100%;margin-top:14px;}
.drawer-close{
  align-self:flex-end;
  width:38px;
  height:38px;
  border:1px solid var(--line);
  border-radius:12px;
  background:var(--surface);
  color:var(--ink-700);
  font-size:1.125rem;
  line-height:1;
  cursor:pointer;
  margin-bottom:8px;
}
@media (max-width:1023px){
  .main-nav{display:none;}
  .nav-toggle{display:inline-flex;}
  .nav-cta{display:none;}
}
@media (max-width:639px){
  .logo-text{font-size:1rem;}
  .header-inner{min-height:64px;gap:12px;}
}

/* ---------- 首屏 ---------- */
.page-hero{
  position:relative;
  padding:56px 0 72px;
  background:var(--paper);
  overflow:hidden;
}
.page-hero::before{
  content:"";
  position:absolute;
  top:-180px;
  right:-140px;
  width:520px;
  height:520px;
  border-radius:50%;
  background:radial-gradient(circle,rgba(23,162,119,.14) 0%,rgba(23,162,119,0) 70%);
  pointer-events:none;
}
.page-hero-inner{
  position:relative;
  display:grid;
  grid-template-columns:minmax(0,1.28fr) minmax(0,1fr);
  gap:56px;
  align-items:center;
}
.page-hero h1{
  font-size:clamp(2rem,4.4vw,3.375rem);
  font-weight:800;
  line-height:1.15;
  letter-spacing:-.02em;
  color:var(--ink-900);
  margin:16px 0 18px;
}
.page-hero .lead{
  max-width:34em;
  font-size:1.0625rem;
  line-height:1.75;
  color:var(--ink-500);
}
.hero-actions{
  display:flex;
  flex-wrap:wrap;
  gap:14px;
  margin-top:30px;
}
.hero-note{
  margin-top:16px;
  font-size:.875rem;
  color:var(--ink-500);
}
.hero-visual{
  position:relative;
  border-radius:var(--r-lg);
  overflow:hidden;
  background:var(--grad-brand);
  box-shadow:var(--shadow-1);
  aspect-ratio:4/3;
}
.hero-visual img{
  width:100%;
  height:100%;
  object-fit:cover;
  border-radius:var(--r-lg);
  box-shadow:inset 0 0 0 1px rgba(255,255,255,.35);
}
.hero-badge{
  position:absolute;
  right:-12px;
  bottom:22px;
  display:flex;
  align-items:center;
  gap:12px;
  padding:14px 20px;
  border-radius:var(--r-pill);
  background:var(--surface);
  border:1px solid var(--line);
  box-shadow:inset 0 1px 0 #fff,var(--shadow-1);
}
.hero-badge strong{
  font-size:1.75rem;
  font-weight:800;
  line-height:1;
  font-feature-settings:"tnum";
  background:var(--grad-brand);
  -webkit-background-clip:text;
  background-clip:text;
  color:transparent;
}
.hero-badge span{font-size:.8125rem;color:var(--ink-500);font-weight:600;}
@media (max-width:1023px){
  .page-hero{padding:44px 0 56px;}
  .page-hero-inner{grid-template-columns:1fr;gap:34px;}
  .hero-visual{max-width:560px;aspect-ratio:16/10;}
  .hero-badge{right:12px;bottom:12px;}
}
@media (max-width:639px){
  .page-hero h1{font-size:clamp(1.75rem,7vw,2.25rem);}
  .hero-actions{flex-direction:column;align-items:stretch;}
  .hero-actions .btn{width:100%;}
  .hero-actions .btn-ghost{border-width:1.5px;}
}

/* ---------- 图集 ---------- */
.gallery-section{background:var(--surface);}
.gallery-grid{
  column-count:4;
  column-gap:20px;
}
.tile{
  position:relative;
  display:block;
  margin:0 0 20px;
  border-radius:var(--r-md);
  overflow:hidden;
  background:var(--paper-2);
  box-shadow:var(--shadow-1);
  break-inside:avoid;
  transition:box-shadow .22s var(--ease);
}
.tile img{
  width:100%;
  display:block;
  object-fit:cover;
  transition:transform .35s var(--ease);
}
.tile::after{
  content:"";
  position:absolute;
  left:0;
  right:0;
  bottom:0;
  height:62%;
  background:linear-gradient(180deg,rgba(8,63,50,0) 0%,rgba(8,63,50,.84) 100%);
  transition:background .22s var(--ease);
  pointer-events:none;
}
.tile-cap{
  position:absolute;
  left:16px;
  right:16px;
  bottom:14px;
  z-index:2;
  color:#fff;
  font-size:.9375rem;
  font-weight:600;
  line-height:1.45;
}
.tile:hover{box-shadow:var(--shadow-2);}
.tile:hover img{transform:scale(1.03);}
.tile:hover::after{background:linear-gradient(180deg,rgba(8,63,50,0) 0%,rgba(8,63,50,.92) 100%);}
.r-34{aspect-ratio:3/4;}
.r-11{aspect-ratio:1/1;}
.r-43{aspect-ratio:4/3;}
.r-45{aspect-ratio:4/5;}
@media (max-width:1023px){
  .gallery-grid{column-count:2;column-gap:16px;}
  .tile{margin-bottom:16px;}
}
@media (max-width:639px){
  .gallery-grid{column-count:2;column-gap:12px;}
  .tile{margin-bottom:12px;border-radius:var(--r-sm);}
  .tile-cap{left:12px;right:12px;bottom:10px;font-size:.8438rem;}
}

/* ---------- 横向说明大卡 ---------- */
.wide-list{display:grid;gap:26px;}
.wide-card{
  display:grid;
  grid-template-columns:minmax(0,.95fr) minmax(0,1.05fr);
  align-items:stretch;
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--r-lg);
  box-shadow:var(--shadow-1);
  overflow:hidden;
}
.wide-card.reverse{grid-template-columns:minmax(0,1.05fr) minmax(0,.95fr);}
.wide-card.reverse .wide-media{order:2;}
.wide-media{
  position:relative;
  min-height:280px;
  background:var(--grad-brand);
}
.wide-media img{
  width:100%;
  height:100%;
  object-fit:cover;
  min-height:280px;
}
.wide-body{
  padding:34px 34px 32px;
  display:flex;
  flex-direction:column;
  gap:14px;
}
.wide-body h3{
  font-size:1.1875rem;
  font-weight:600;
  line-height:1.45;
  color:var(--ink-900);
}
.wide-body p{color:var(--ink-500);font-size:.9688rem;line-height:1.85;}
.check-list{display:grid;gap:9px;margin-top:2px;}
.check-list li{
  position:relative;
  padding-left:20px;
  font-size:.9375rem;
  color:var(--ink-700);
  line-height:1.7;
}
.check-list li::before{
  content:"";
  position:absolute;
  left:0;
  top:.62em;
  width:9px;
  height:9px;
  border-radius:50%;
  background:var(--grad-brand);
}
.wide-body .link-more{margin-top:auto;padding-top:8px;align-self:flex-start;}
@media (max-width:1023px){
  .wide-card,.wide-card.reverse{grid-template-columns:1fr;}
  .wide-card.reverse .wide-media{order:0;}
  .wide-media,.wide-media img{min-height:220px;max-height:260px;}
  .wide-body{padding:26px 24px 26px;}
}
@media (max-width:639px){
  .wide-media,.wide-media img{min-height:180px;max-height:200px;}
  .wide-body{padding:22px 20px 24px;}
}

/* ---------- 步骤流 ---------- */
.flow-section{background:var(--paper-2);}
.flow-grid{margin-left:-12px;margin-right:-12px;}
.flow-grid>.cell{padding-left:12px;padding-right:12px;margin-bottom:24px;}
.flow-card{
  height:100%;
  background:var(--surface);
  border-radius:var(--r-md);
  border:1px solid var(--line);
  box-shadow:var(--shadow-1);
  padding:28px 26px;
  display:flex;
  flex-direction:column;
  gap:12px;
  transition:transform .2s var(--ease),box-shadow .2s var(--ease);
}
.flow-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-2);}
.flow-num{
  width:40px;
  height:40px;
  border-radius:50%;
  background:var(--grad-brand);
  color:#fff;
  font-weight:800;
  font-size:1rem;
  display:inline-flex;
  align-items:center;
  justify-content:center;
  font-feature-settings:"tnum";
  box-shadow:inset 0 1px 0 rgba(255,255,255,.4);
}
.flow-card h3{
  font-size:1.0625rem;
  font-weight:600;
  color:var(--ink-900);
  line-height:1.5;
}
.flow-card p{font-size:.9375rem;color:var(--ink-500);line-height:1.8;}

/* ---------- FAQ ---------- */
.faq-section{background:var(--surface);}
.faq-layout{margin-left:-14px;margin-right:-14px;}
.faq-layout>.cell{padding-left:14px;padding-right:14px;}
.faq-side .btn{margin-top:22px;}
.faq-list{display:grid;gap:12px;}
.faq-item{
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--r-md);
  box-shadow:var(--shadow-1);
  overflow:hidden;
}
.faq-item summary{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  padding:20px 24px;
  cursor:pointer;
  list-style:none;
  font-size:1.0625rem;
  font-weight:600;
  color:var(--ink-900);
  line-height:1.5;
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-icon{
  position:relative;
  flex:0 0 auto;
  width:26px;
  height:26px;
  border-radius:50%;
  background:var(--paper-2);
  transition:transform .2s var(--ease),background-color .2s var(--ease);
}
.faq-icon::before,.faq-icon::after{
  content:"";
  position:absolute;
  left:50%;
  top:50%;
  background:var(--brand-700);
  border-radius:2px;
  transform:translate(-50%,-50%);
  transition:background-color .2s var(--ease);
}
.faq-icon::before{width:12px;height:2px;}
.faq-icon::after{width:2px;height:12px;}
.faq-item[open] .faq-icon{transform:rotate(45deg);background:var(--accent-50);}
.faq-item[open] .faq-icon::before,.faq-item[open] .faq-icon::after{background:var(--accent-600);}
.faq-answer{
  padding:0 24px 22px;
  margin-top:0;
  border-top:1px dashed var(--line);
  padding-top:16px;
  font-size:.9375rem;
  line-height:1.85;
  color:var(--ink-700);
}
@media (max-width:639px){
  .faq-item summary{padding:17px 18px;font-size:1rem;}
  .faq-answer{padding:14px 18px 18px;}
}

/* ---------- 底部 CTA ---------- */
.cta-band{
  position:relative;
  padding:88px 0;
  background:var(--brand-800);
  overflow:hidden;
}
.cta-band::before{
  content:"";
  position:absolute;
  top:-160px;
  left:8%;
  width:520px;
  height:520px;
  border-radius:50%;
  background:radial-gradient(circle,rgba(52,195,143,.24) 0%,rgba(52,195,143,0) 68%);
  pointer-events:none;
}
.cta-band::after{
  content:"";
  position:absolute;
  bottom:-200px;
  right:4%;
  width:460px;
  height:460px;
  border-radius:50%;
  background:radial-gradient(circle,rgba(255,138,61,.16) 0%,rgba(255,138,61,0) 70%);
  pointer-events:none;
}
.cta-inner{
  position:relative;
  z-index:2;
  text-align:center;
  max-width:760px;
  margin:0 auto;
}
.cta-inner h2{
  font-size:clamp(1.5rem,2.6vw,2.125rem);
  font-weight:700;
  line-height:1.28;
  color:#fff;
  margin-bottom:14px;
}
.cta-inner p{color:rgba(255,255,255,.78);font-size:1rem;line-height:1.85;}
.cta-actions{
  display:flex;
  justify-content:center;
  flex-wrap:wrap;
  gap:14px;
  margin-top:30px;
}
@media (max-width:639px){
  .cta-band{padding:62px 0;}
  .cta-actions{flex-direction:column;align-items:stretch;}
  .cta-actions .btn{width:100%;}
}

/* ---------- 页脚 ---------- */
.site-footer{
  background:var(--brand-800);
  border-top:1px solid rgba(255,255,255,.08);
  color:rgba(255,255,255,.72);
  padding:64px 0 0;
}
.footer-grid{
  display:grid;
  grid-template-columns:1.5fr 1fr 1fr 1.2fr;
  gap:36px;
  padding-bottom:48px;
}
.footer-brand .logo{margin-bottom:16px;}
.footer-brand .logo-text{color:#fff;font-size:1.125rem;font-weight:800;}
.footer-brand p{
  font-size:.9375rem;
  line-height:1.8;
  color:rgba(255,255,255,.66);
  max-width:26em;
}
.footer-col h4{
  font-size:.875rem;
  font-weight:700;
  color:#fff;
  letter-spacing:.04em;
  margin-bottom:16px;
}
.footer-col ul{display:grid;gap:10px;}
.footer-col a,.footer-col span{
  font-size:.9063rem;
  color:rgba(255,255,255,.66);
  line-height:1.7;
}
.footer-col a:hover{color:var(--brand-400);}
.footer-bottom{
  display:flex;
  justify-content:space-between;
  align-items:center;
  flex-wrap:wrap;
  gap:12px;
  padding:20px 0 24px;
  border-top:1px solid rgba(255,255,255,.08);
  font-size:.8438rem;
  color:rgba(255,255,255,.5);
}
@media (max-width:1023px){
  .footer-grid{grid-template-columns:1fr 1fr;gap:30px;}
}
@media (max-width:639px){
  .site-footer{padding-top:48px;}
  .footer-grid{grid-template-columns:1fr;gap:26px;padding-bottom:34px;}
  .footer-bottom{flex-direction:column;align-items:flex-start;}
}

/* ---------- 底部固定转化条 ---------- */
.sticky-bar{
  position:fixed;
  left:50%;
  bottom:16px;
  z-index:70;
  transform:translate(-50%,140%);
  width:min(1120px,calc(100% - 64px));
  display:flex;
  align-items:center;
  gap:16px;
  padding:12px 14px 12px 24px;
  border-radius:var(--r-pill);
  background:var(--surface);
  border:1px solid var(--line);
  box-shadow:var(--shadow-2);
  transition:transform .3s var(--ease),opacity .3s var(--ease);
  opacity:0;
}
.sticky-bar.is-visible{transform:translate(-50%,0);opacity:1;}
.sticky-bar .bar-text{
  font-size:.9375rem;
  font-weight:600;
  color:var(--ink-900);
  white-space:nowrap;
  overflow:hidden;
  text-overflow:ellipsis;
}
.sticky-bar .btn{margin-left:auto;}
.bar-close{
  width:32px;
  height:32px;
  flex:0 0 auto;
  border:1px solid var(--line);
  border-radius:50%;
  background:var(--paper);
  color:var(--ink-500);
  font-size:1rem;
  line-height:1;
  cursor:pointer;
  transition:background-color .18s var(--ease),color .18s var(--ease);
}
.bar-close:hover{background:var(--paper-2);color:var(--ink-900);}
@media (max-width:1023px){
  .sticky-bar{width:calc(100% - 32px);}
}
@media (max-width:639px){
  .sticky-bar{
    left:0;
    bottom:0;
    transform:translate(0,0);
    width:100%;
    border-radius:0;
    border-left:0;
    border-right:0;
    border-bottom:0;
    padding:10px 14px calc(10px + env(safe-area-inset-bottom));
    gap:10px;
    opacity:1;
  }
  .sticky-bar .bar-text{font-size:.8438rem;flex:1 1 auto;white-space:normal;line-height:1.35;}
  .sticky-bar .btn{padding:12px 20px;font-size:.9063rem;margin-left:0;}
  .bar-close{display:none;}
  body{padding-bottom:88px;}
}

/* ---------- 面包屑 ---------- */
.breadcrumb{
  padding:20px 0 0;
  font-size:.875rem;
  color:var(--ink-500);
}
.breadcrumb ol{display:flex;flex-wrap:wrap;align-items:center;gap:8px;}
.breadcrumb li{display:inline-flex;align-items:center;gap:8px;}
.breadcrumb li+li::before{content:"/";color:var(--line);}
.breadcrumb a{color:var(--ink-500);}
.breadcrumb a:hover{color:var(--brand-600);}
.breadcrumb .current{color:var(--ink-900);font-weight:600;}