/* roulang page: index */
:root{
  --brand-900:#0B1F19;
  --brand-700:#0F3D33;
  --brand-500:#17604F;
  --accent-500:#FF6B3D;
  --paper:#F7F4EE;
  --surface:#FFFFFF;
  --surface-2:#EFEAE0;
  --line:rgba(11,31,25,.10);
  --text-900:#14181A;
  --text-600:#4A5250;
  --text-400:#8A9391;
  --r-card:16px;
  --r-img:12px;
  --r-btn:10px;
  --r-input:10px;
  --r-cta:24px;
  --nav-w:232px;
  --font-cn:'Noto Sans SC','PingFang SC','Microsoft YaHei',sans-serif;
  --font-num:'Inter','DIN Alternate',ui-monospace,SFMono-Regular,Menlo,monospace;
  --font-serif:'Noto Serif SC','Songti SC',serif;
  --shadow-hover:0 18px 40px rgba(11,31,25,.08);
  --shadow-soft:0 8px 20px rgba(11,31,25,.06);
  --ease:cubic-bezier(.22,.61,.36,1);

  --bs-primary:#0F3D33;
  --bs-body-bg:#F7F4EE;
  --bs-body-color:#14181A;
  --bs-border-color:rgba(11,31,25,.10);
  --bs-link-color:#0F3D33;
  --bs-link-hover-color:#17604F;
  --bs-font-sans-serif:'Noto Sans SC','PingFang SC','Microsoft YaHei',sans-serif;
  --bs-body-font-family:'Noto Sans SC','PingFang SC','Microsoft YaHei',sans-serif;
  --bs-border-radius:16px;
  --bs-border-radius-sm:10px;
  --bs-border-radius-lg:24px;
}

*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:var(--font-cn);
  font-size:1rem;
  line-height:1.75;
  color:var(--text-900);
  background:var(--paper);
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{max-width:100%;height:auto;display:block;}
a{color:inherit;text-decoration:none;transition:color .2s var(--ease),background-color .2s var(--ease),border-color .2s var(--ease);}
button,input,textarea,select{font-family:inherit;font-size:inherit;}
h1,h2,h3,h4,p,ul,ol,figure{margin:0;}
ul,ol{padding:0;list-style:none;}
:focus-visible{outline:2px solid var(--accent-500);outline-offset:2px;border-radius:4px;}
::selection{background:rgba(255,107,61,.22);}

.shell{width:100%;max-width:1180px;margin:0 auto;padding-left:24px;padding-right:24px;}
.num{font-family:var(--font-num);font-variant-numeric:tabular-nums;}

/* ---------- 左侧竖向导航 ---------- */
.side-nav{
  position:fixed;top:0;left:0;width:var(--nav-w);height:100vh;
  background:var(--surface);
  border-right:1px solid var(--line);
  display:flex;flex-direction:column;
  padding:26px 18px 20px;
  z-index:1030;
}
.side-brand{display:flex;flex-direction:column;gap:2px;padding:6px 10px 20px;border-bottom:1px solid var(--line);}
.brand-mark{
  width:34px;height:34px;border-radius:10px;
  background:var(--brand-700);color:#fff;
  display:flex;align-items:center;justify-content:center;
  margin-bottom:10px;
}
.brand-mark svg{width:20px;height:20px;}
.brand-name{font-size:1.0625rem;font-weight:800;letter-spacing:-.01em;color:var(--brand-900);line-height:1.3;}
.brand-sub{font-size:.75rem;color:var(--text-400);letter-spacing:.04em;}
.side-menu{display:flex;flex-direction:column;gap:4px;padding:18px 0;flex:1;}
.side-link{
  position:relative;display:flex;align-items:center;
  height:44px;padding:0 12px 0 16px;border-radius:10px;
  color:var(--text-600);font-size:.9375rem;font-weight:500;
}
.side-link::before{
  content:"";position:absolute;left:0;top:50%;transform:translateY(-50%);
  width:3px;height:0;background:var(--accent-500);border-radius:2px;
  transition:height .22s var(--ease);
}
.side-link:hover{background:var(--surface-2);color:var(--brand-700);}
.side-link:hover::before{height:14px;background:var(--brand-500);}
.side-link.is-active{background:rgba(15,61,51,.07);color:var(--brand-700);font-weight:700;}
.side-link.is-active::before{height:20px;}
.side-foot{border-top:1px solid var(--line);padding:16px 10px 0;}
.side-foot-title{font-size:.75rem;letter-spacing:.06em;color:var(--text-400);margin-bottom:6px;}
.side-foot-text{font-size:.8125rem;color:var(--text-600);line-height:1.7;}
.side-copy{font-size:.75rem;color:var(--text-400);margin-top:12px;}

/* ---------- 移动顶栏 ---------- */
.mobile-top{
  position:fixed;top:0;left:0;right:0;height:60px;
  display:flex;align-items:center;justify-content:space-between;
  padding:0 16px;background:rgba(247,244,238,.96);
  border-bottom:1px solid var(--line);
  backdrop-filter:blur(10px);
  z-index:1040;
  transition:box-shadow .25s var(--ease);
}
.mobile-top.is-scrolled{box-shadow:0 8px 20px rgba(11,31,25,.06);}
.mobile-brand{display:flex;align-items:center;gap:10px;font-weight:800;font-size:1rem;color:var(--brand-900);}
.mobile-brand .brand-mark{width:28px;height:28px;border-radius:8px;margin:0;}
.mobile-brand .brand-mark svg{width:16px;height:16px;}
.menu-btn{
  width:44px;height:44px;border:1px solid var(--line);background:var(--surface);
  border-radius:10px;display:flex;align-items:center;justify-content:center;
  color:var(--brand-700);cursor:pointer;transition:border-color .2s,background-color .2s;
}
.menu-btn:hover{border-color:var(--brand-500);background:var(--surface-2);}
.menu-btn svg{width:20px;height:20px;}
.mobile-menu{background:var(--surface);width:280px;border-right:1px solid var(--line);}
.mobile-menu .offcanvas-header{border-bottom:1px solid var(--line);padding:18px 20px;display:flex;align-items:center;justify-content:space-between;}
.mobile-menu .offcanvas-title{font-weight:800;color:var(--brand-900);font-size:1rem;}
.menu-close{width:38px;height:38px;border:1px solid var(--line);background:transparent;border-radius:10px;display:flex;align-items:center;justify-content:center;color:var(--text-600);cursor:pointer;}
.menu-close:hover{border-color:var(--brand-500);color:var(--brand-700);}
.mobile-menu .offcanvas-body{padding:14px 14px 24px;}
.m-link{display:flex;align-items:center;height:48px;padding:0 14px;border-radius:10px;color:var(--text-600);font-size:.9375rem;font-weight:500;}
.m-link:hover{background:var(--surface-2);color:var(--brand-700);}
.m-link.is-active{color:var(--accent-500);font-weight:700;background:rgba(255,107,61,.07);}

.page-wrap{margin-left:0;padding-top:60px;}
@media (min-width:992px){
  .page-wrap{margin-left:var(--nav-w);padding-top:0;}
  .mobile-top{display:none;}
}
@media (max-width:991.98px){
  .side-nav{display:none;}
}

/* ---------- 通用板块 ---------- */
.section{padding:56px 0;}
@media (min-width:992px){.section{padding:80px 0;}}
.section-alt{background:var(--surface-2);}
.section-head{margin-bottom:40px;}
.section-head .eyebrow{
  display:inline-block;font-size:.75rem;letter-spacing:.08em;color:var(--brand-500);
  font-weight:700;margin-bottom:12px;text-transform:uppercase;
}
.section-head h2{
  font-size:clamp(1.625rem,3vw,2.375rem);font-weight:800;line-height:1.2;color:var(--brand-900);
  letter-spacing:-.015em;margin-bottom:16px;
}
.section-head p{color:var(--text-600);font-size:1.0625rem;max-width:720px;}
.head-row{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;flex-wrap:wrap;}
.text-link{
  display:inline-flex;align-items:center;gap:6px;color:var(--brand-700);
  font-weight:600;font-size:.9375rem;border-bottom:1px solid transparent;
  transition:border-color .2s var(--ease),color .2s var(--ease);
}
.text-link::after{content:"";width:14px;height:8px;border-right:1.5px solid currentColor;border-bottom:1.5px solid currentColor;transform:rotate(-45deg) translateY(-2px);transition:transform .2s var(--ease);}
.text-link:hover{color:var(--accent-500);border-color:var(--accent-500);}
.text-link:hover::after{transform:rotate(-45deg) translate(2px,-2px);}

/* ---------- 按钮 ---------- */
.btn-brand,.btn-ghost{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:44px;padding:0 22px;border-radius:var(--r-btn);
  font-size:.9375rem;font-weight:700;cursor:pointer;border:1px solid transparent;
  transition:transform .2s var(--ease),box-shadow .25s var(--ease),background-color .2s var(--ease),color .2s var(--ease),border-color .2s var(--ease);
}
.btn-brand{background:var(--brand-700);color:#fff;border-color:var(--brand-700);}
.btn-brand:hover{background:var(--brand-900);border-color:var(--brand-900);color:#fff;transform:translateY(-2px);box-shadow:0 12px 24px rgba(11,31,25,.18);}
.btn-brand:active{transform:translateY(0);}
.btn-ghost{background:transparent;color:var(--brand-700);border-color:var(--line);}
.btn-ghost:hover{border-color:var(--brand-500);color:var(--brand-500);transform:translateY(-2px);}
.btn-accent{background:var(--accent-500);border-color:var(--accent-500);color:#fff;}
.btn-accent:hover{background:#F2571F;border-color:#F2571F;color:#fff;transform:translateY(-2px);box-shadow:0 12px 26px rgba(255,107,61,.28);}

/* ---------- 徽章 / 标签 ---------- */
.badge-soft{
  display:inline-flex;align-items:center;height:26px;padding:0 12px;border-radius:999px;
  border:1px solid var(--line);background:var(--paper);color:var(--brand-700);
  font-size:.75rem;font-weight:600;letter-spacing:.04em;
}
.badge-accent{border-color:rgba(255,107,61,.4);background:rgba(255,107,61,.1);color:#C8400F;}

/* ---------- Hero ---------- */
.hero{position:relative;padding:40px 0 48px;background:var(--paper);overflow:hidden;}
@media (min-width:992px){.hero{padding:64px 0 72px;}}
.hero .eyebrow{display:inline-block;font-size:.75rem;letter-spacing:.08em;font-weight:700;color:var(--brand-500);margin-bottom:16px;}
.hero h1{
  font-size:clamp(2.25rem,5vw,3.75rem);
  font-weight:900;line-height:1.12;letter-spacing:-.02em;color:var(--brand-900);
  margin-bottom:20px;
}
.hero-sub{font-size:1.0625rem;color:var(--text-600);max-width:560px;margin-bottom:28px;}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-bottom:36px;}
.hero-stats{display:flex;flex-wrap:wrap;gap:28px;padding-top:26px;border-top:1px solid var(--line);}
.hero-stats li{min-width:96px;}
.stat-num{display:block;font-family:var(--font-num);font-variant-numeric:tabular-nums;font-size:1.75rem;font-weight:800;color:var(--brand-700);line-height:1.2;}
.stat-label{display:block;font-size:.8125rem;color:var(--text-400);margin-top:4px;}
.hero-media{position:relative;border-radius:var(--r-card);overflow:hidden;border:1px solid var(--line);background:var(--surface);}
.hero-media img{width:100%;aspect-ratio:16/10;object-fit:cover;}
.hero-media::after{content:"";position:absolute;inset:0;border-radius:var(--r-card);box-shadow:inset 0 0 0 1px rgba(11,31,25,.10);pointer-events:none;}

/* ---------- 信任条 ---------- */
.trust{padding:24px 0;border-top:1px solid var(--line);border-bottom:1px solid var(--line);background:var(--surface);}
.trust ul{display:flex;flex-wrap:wrap;gap:14px 40px;justify-content:space-between;}
.trust li{font-size:.875rem;color:var(--text-600);display:flex;align-items:center;gap:8px;}
.trust li svg{width:16px;height:16px;color:var(--brand-500);}

/* ---------- 功能卡 ---------- */
.card-base{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-card);
  transition:transform .25s var(--ease),box-shadow .25s var(--ease),border-color .25s var(--ease);
  height:100%;
}
.card-base:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover);border-color:rgba(15,61,51,.22);}
.feature-card{overflow:hidden;display:flex;flex-direction:column;}
.feature-card .thumb{border-bottom:1px solid var(--line);}
.feature-card .thumb img{width:100%;aspect-ratio:16/9;object-fit:cover;}
.feature-card .body{padding:26px 26px 28px;display:flex;flex-direction:column;gap:12px;flex:1;}
.num-badge{font-family:var(--font-num);font-size:.8125rem;font-weight:700;letter-spacing:.08em;color:var(--accent-500);}
.feature-card h3{font-size:1.1875rem;font-weight:700;color:var(--brand-900);}
.feature-card p{font-size:.9375rem;color:var(--text-600);}
.mini-card{padding:26px 24px;}
.mini-card .icon{width:38px;height:38px;border-radius:10px;border:1px solid var(--line);display:flex;align-items:center;justify-content:center;color:var(--brand-500);margin-bottom:16px;}
.mini-card .icon svg{width:20px;height:20px;}
.mini-card h3{font-size:1.0625rem;font-weight:700;color:var(--brand-900);margin-bottom:10px;}
.mini-card p{font-size:.9375rem;color:var(--text-600);}

/* ---------- Zigzag 场景 ---------- */
.zig{display:grid;grid-template-columns:1fr;gap:28px;align-items:center;padding:32px 0;}
.zig + .zig{border-top:1px solid var(--line);}
@media (min-width:992px){
  .zig{grid-template-columns:1fr 1fr;gap:64px;padding:44px 0;}
  .zig.reverse .zig-media{order:2;}
  .zig.reverse .zig-text{order:1;}
}
.zig-media{border-radius:var(--r-img);overflow:hidden;border:1px solid var(--line);background:var(--surface);}
.zig-media img{width:100%;aspect-ratio:4/3;object-fit:cover;}
.zig h3{font-size:1.375rem;font-weight:800;color:var(--brand-900);margin:14px 0 16px;line-height:1.35;}
.zig p{color:var(--text-600);margin-bottom:18px;}
.check-list{display:flex;flex-direction:column;gap:12px;}
.check-list li{display:flex;gap:10px;align-items:flex-start;font-size:.9375rem;color:var(--text-600);}
.check-list svg{width:18px;height:18px;flex:none;color:var(--accent-500);margin-top:4px;}

/* ---------- 案例 ---------- */
.case-card{position:relative;background:var(--paper);border:1px solid var(--line);border-radius:var(--r-card);padding:28px 26px 28px 30px;overflow:hidden;height:100%;transition:transform .25s var(--ease),box-shadow .25s var(--ease);}
.case-card::before{content:"";position:absolute;left:0;top:0;bottom:0;width:3px;background:var(--brand-700);}
.case-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover);}
.case-top{display:flex;align-items:center;justify-content:space-between;gap:12px;flex-wrap:wrap;margin-bottom:18px;}
.case-name{font-weight:800;color:var(--brand-900);font-size:1.0625rem;}
.case-metric{font-family:var(--font-num);font-variant-numeric:tabular-nums;font-size:2.25rem;font-weight:800;color:var(--brand-700);line-height:1.1;}
.case-metric small{display:block;font-family:var(--font-cn);font-size:.8125rem;font-weight:500;color:var(--text-400);margin-top:6px;}
.case-quote{margin-top:18px;padding-top:18px;border-top:1px solid var(--line);font-size:.9375rem;color:var(--text-600);font-family:var(--font-serif);}

/* ---------- 价格 ---------- */
.price-card{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-card);
  padding:32px 26px;height:100%;display:flex;flex-direction:column;gap:18px;position:relative;
  transition:transform .25s var(--ease),box-shadow .25s var(--ease);
}
.price-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover);}
.price-card h3{font-size:1.125rem;font-weight:800;color:var(--brand-900);}
.price-value{font-family:var(--font-num);font-variant-numeric:tabular-nums;font-size:2.5rem;font-weight:800;color:var(--brand-900);line-height:1;}
.price-value small{font-family:var(--font-cn);font-size:.875rem;font-weight:500;color:var(--text-400);margin-left:6px;}
.price-card p.desc{font-size:.9375rem;color:var(--text-600);}
.price-list{display:flex;flex-direction:column;gap:11px;flex:1;}
.price-list li{display:flex;gap:10px;font-size:.9375rem;color:var(--text-600);align-items:flex-start;}
.price-list svg{width:17px;height:17px;flex:none;color:var(--brand-500);margin-top:4px;}
.price-card.is-featured{background:var(--brand-900);border-color:var(--brand-900);color:#fff;}
.price-card.is-featured h3,.price-card.is-featured .price-value{color:#fff;}
.price-card.is-featured .price-value small,.price-card.is-featured p.desc,.price-card.is-featured .price-list li{color:rgba(255,255,255,.78);}
.price-card.is-featured .price-list svg{color:#FF9A73;}
.corner-badge{position:absolute;top:16px;right:16px;background:var(--accent-500);color:#fff;font-size:.75rem;font-weight:700;letter-spacing:.04em;padding:5px 12px;border-radius:999px;}
.price-note{margin-top:26px;font-size:.8125rem;color:var(--text-400);text-align:center;}

/* ---------- 最新信息 ---------- */
.post-card{
  display:flex;flex-direction:column;height:100%;overflow:hidden;
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-card);
  transition:transform .25s var(--ease),box-shadow .25s var(--ease),border-color .25s var(--ease);
}
.post-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover);border-color:rgba(15,61,51,.22);}
.post-thumb img{width:100%;aspect-ratio:16/9;object-fit:cover;}
.post-body{padding:22px;display:flex;flex-direction:column;gap:12px;flex:1;}
.post-title{
  font-size:1.0625rem;font-weight:700;color:var(--brand-900);line-height:1.45;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.post-sum{
  font-size:.875rem;color:var(--text-600);line-height:1.7;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.post-meta{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-top:auto;padding-top:14px;border-top:1px solid var(--line);}
.post-date{font-family:var(--font-num);font-variant-numeric:tabular-nums;font-size:.8125rem;color:var(--text-400);}
.empty-state{text-align:center;padding:56px 24px;border:1px dashed var(--line);border-radius:var(--r-card);background:var(--surface);}
.empty-state svg{width:36px;height:36px;color:var(--text-400);margin:0 auto 16px;}
.empty-state p{color:var(--text-600);margin-bottom:20px;}

/* ---------- FAQ ---------- */
.accordion{--bs-accordion-border-width:0;--bs-accordion-bg:transparent;--bs-accordion-btn-focus-box-shadow:none;--bs-accordion-active-bg:transparent;--bs-accordion-active-color:var(--brand-700);--bs-accordion-border-radius:0;--bs-accordion-inner-border-radius:0;background:var(--surface);border:1px solid var(--line);border-radius:var(--r-card);overflow:hidden;}
.accordion-item{background:var(--surface);border:0;border-top:1px solid var(--line);}
.accordion-item:first-child{border-top:0;}
.accordion-button{
  position:relative;padding:22px 56px 22px 34px;font-size:1.0625rem;font-weight:600;
  color:var(--text-900);background:var(--surface);box-shadow:none!important;line-height:1.5;
}
.accordion-button::before{content:"";position:absolute;left:16px;top:50%;transform:translateY(-50%);width:8px;height:8px;border-radius:2px;background:var(--accent-500);opacity:0;transition:opacity .2s var(--ease);}
.accordion-button::after{background-image:none;width:11px;height:11px;border-right:1.5px solid var(--text-400);border-bottom:1.5px solid var(--text-400);transform:rotate(45deg);transition:transform .25s var(--ease),border-color .2s;position:absolute;right:24px;top:50%;margin-top:-8px;}
.accordion-button:not(.collapsed){color:var(--brand-700);background:var(--surface);}
.accordion-button:not(.collapsed)::before{opacity:1;}
.accordion-button:not(.collapsed)::after{border-color:var(--accent-500);transform:rotate(-135deg);margin-top:-4px;}
.accordion-button:focus-visible{outline:2px solid var(--accent-500);outline-offset:-2px;}
.accordion-body{padding:0 56px 24px 34px;color:var(--text-600);font-size:.9375rem;line-height:1.8;}

/* ---------- CTA ---------- */
.cta-panel{
  background:var(--brand-900);border-radius:var(--r-cta);padding:48px 32px;
  display:flex;flex-direction:column;gap:22px;align-items:flex-start;
}
@media (min-width:992px){
  .cta-panel{flex-direction:row;align-items:center;justify-content:space-between;padding:56px 56px;}
}
.cta-panel h2{font-size:clamp(1.5rem,2.6vw,2rem);font-weight:800;color:#fff;line-height:1.25;margin-bottom:10px;}
.cta-panel p{color:rgba(255,255,255,.72);font-size:.9375rem;max-width:560px;}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--brand-900);color:rgba(255,255,255,.72);padding:56px 0 0;margin-top:0;}
.site-footer .foot-grid{display:grid;grid-template-columns:1fr;gap:36px;padding-bottom:40px;border-bottom:1px solid rgba(255,255,255,.12);}
@media (min-width:768px){.site-footer .foot-grid{grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:32px;}}
.foot-brand .brand-mark{background:var(--accent-500);margin-bottom:14px;}
.foot-brand strong{display:block;color:#fff;font-size:1.0625rem;font-weight:800;margin-bottom:10px;}
.foot-brand p{font-size:.875rem;line-height:1.8;max-width:300px;}
.foot-title{color:#fff;font-size:.9375rem;font-weight:700;margin-bottom:16px;}
.foot-links{display:flex;flex-direction:column;gap:10px;}
.foot-links a{font-size:.875rem;color:rgba(255,255,255,.72);border-bottom:1px solid transparent;align-self:flex-start;padding-bottom:1px;}
.foot-links a:hover{color:var(--accent-500);border-color:var(--accent-500);}
.foot-contact p{font-size:.875rem;margin-bottom:8px;}
.foot-contact .num{color:#fff;}
.foot-bottom{display:flex;flex-wrap:wrap;gap:10px 24px;justify-content:space-between;padding:22px 0 26px;font-size:.8125rem;color:rgba(255,255,255,.55);}

/* ---------- 入场动效 ---------- */
.reveal{opacity:0;transform:translateY(8px);animation:revealUp .48s var(--ease) forwards;}
@keyframes revealUp{to{opacity:1;transform:translateY(0);}}
.stagger > *:nth-child(1){animation-delay:.06s;}
.stagger > *:nth-child(2){animation-delay:.12s;}
.stagger > *:nth-child(3){animation-delay:.18s;}
.stagger > *:nth-child(4){animation-delay:.24s;}
.stagger > *:nth-child(5){animation-delay:.30s;}
@media (prefers-reduced-motion:reduce){
  *{animation:none!important;transition:none!important;scroll-behavior:auto!important;}
  .reveal{opacity:1;transform:none;}
}

/* roulang page: article */
:root{
  --brand-900:#0B1F19;
  --brand-700:#0F3D33;
  --brand-500:#17604F;
  --accent-500:#FF6B3D;
  --paper:#F7F4EE;
  --surface:#FFFFFF;
  --surface-2:#EFEAE0;
  --line:rgba(11,31,25,.10);
  --text-900:#14181A;
  --text-600:#4A5250;
  --text-400:#8A9391;
  --rail-w:232px;
  --r-card:16px;
  --r-img:12px;
  --r-btn:10px;
  --shadow-hover:0 18px 40px rgba(11,31,25,.08);
  --ease:cubic-bezier(.22,.61,.36,1);

  --bs-primary:#0F3D33;
  --bs-body-bg:#F7F4EE;
  --bs-body-color:#14181A;
  --bs-border-color:rgba(11,31,25,.10);
  --bs-link-color:#0F3D33;
  --bs-link-hover-color:#17604F;
  --bs-font-sans-serif:'Noto Sans SC','PingFang SC','Microsoft YaHei',sans-serif;
}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  background:var(--paper);
  color:var(--text-900);
  font-family:'Noto Sans SC','PingFang SC','Microsoft YaHei',sans-serif;
  font-size:16px;
  line-height:1.75;
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
  overflow-x:hidden;
}
img{max-width:100%;display:block;height:auto}
a{color:inherit;text-decoration:none;transition:color .2s var(--ease)}
button{font:inherit;cursor:pointer}
h1,h2,h3,h4,p,figure,blockquote{margin:0}
ul,ol{margin:0}
:focus-visible{outline:2px solid var(--accent-500);outline-offset:2px;border-radius:6px}
.num{font-family:'Inter','DIN Alternate',ui-monospace,SFMono-Regular,Menlo,monospace;font-variant-numeric:tabular-nums;letter-spacing:0}
.shell{width:100%;max-width:1180px;margin:0 auto;padding:0 32px}

/* ---------- 桌面侧栏 ---------- */
.side-rail{
  position:fixed;top:0;left:0;bottom:0;
  width:var(--rail-w);
  background:var(--paper);
  border-right:1px solid var(--line);
  flex-direction:column;
  padding:26px 18px 22px;
  overflow-y:auto;
  z-index:1040;
}
.brand-block{display:flex;align-items:center;gap:10px;padding:0 8px 24px;border-bottom:1px solid var(--line)}
.brand-mark{
  width:36px;height:36px;flex:0 0 auto;
  border-radius:11px;background:var(--brand-700);color:#fff;
  display:grid;place-items:center;
}
.brand-mark svg{width:20px;height:20px}
.brand-text{display:block;font-size:1.0625rem;font-weight:900;letter-spacing:-.01em;line-height:1.2;color:var(--text-900)}
.brand-text i{display:block;font-style:normal;font-size:.6875rem;font-weight:500;letter-spacing:.08em;color:var(--text-400);margin-top:3px}
.side-menu{display:flex;flex-direction:column;gap:2px;margin-top:18px}
.side-link{
  position:relative;display:flex;align-items:center;
  height:44px;padding:0 12px;border-radius:10px;
  font-size:.9375rem;color:var(--text-600);
  transition:background .2s var(--ease),color .2s var(--ease);
}
.side-link:hover{background:var(--surface-2);color:var(--brand-700)}
.side-link.is-active{background:rgba(15,61,51,.07);color:var(--brand-700);font-weight:700}
.side-link.is-active::before{
  content:"";position:absolute;left:0;top:12px;bottom:12px;width:3px;
  border-radius:0 3px 3px 0;background:var(--accent-500);
}
.rail-foot{margin-top:auto;padding-top:22px;border-top:1px solid var(--line);font-size:.8125rem;color:var(--text-400)}
.rail-foot p{margin-bottom:4px}
.rail-foot .rail-foot-title{font-weight:700;color:var(--text-900);letter-spacing:.04em;font-size:.75rem;margin-bottom:8px}
.rail-foot .num{color:var(--brand-700);font-weight:700}
.rail-foot a:hover{color:var(--accent-500)}

/* ---------- 移动端顶栏 ---------- */
.mobile-bar{
  position:sticky;top:0;z-index:1030;
  display:flex;align-items:center;justify-content:space-between;
  height:60px;padding:0 16px;
  background:rgba(247,244,238,.94);
  backdrop-filter:blur(10px);
  border-bottom:1px solid var(--line);
  transition:box-shadow .25s var(--ease);
}
.mobile-bar.is-scrolled{box-shadow:0 8px 20px rgba(11,31,25,.06)}
.mb-brand{display:flex;align-items:center;gap:9px}
.mb-brand .brand-mark{width:32px;height:32px;border-radius:9px}
.mb-brand .brand-mark svg{width:18px;height:18px}
.mb-brand strong{font-size:.9375rem;font-weight:900;letter-spacing:-.01em}
.hamburger{
  width:44px;height:44px;display:grid;place-items:center;
  background:transparent;border:1px solid var(--line);border-radius:10px;
  color:var(--brand-700);transition:background .2s var(--ease),border-color .2s var(--ease);
}
.hamburger:hover{background:var(--surface-2);border-color:var(--brand-500)}
.hamburger svg{width:20px;height:20px}
.mobile-drawer{--bs-offcanvas-width:286px;background:var(--paper);border-right:1px solid var(--line)}
.mobile-drawer .offcanvas-header{border-bottom:1px solid var(--line);padding:18px 18px 16px}
.mobile-drawer .offcanvas-body{padding:16px 14px}
.drawer-close{
  width:40px;height:40px;display:grid;place-items:center;
  border:1px solid var(--line);background:transparent;border-radius:10px;
  color:var(--text-600);font-size:1.25rem;line-height:1;
  transition:background .2s var(--ease),color .2s var(--ease);
}
.drawer-close:hover{background:var(--surface-2);color:var(--brand-700)}

/* ---------- 页面容器 ---------- */
.page{min-height:100vh;display:flex;flex-direction:column}
.page-main{flex:1 1 auto}
@media (min-width:992px){
  .page{margin-left:var(--rail-w)}
}

/* ---------- 按钮 ---------- */
.btn-main,.btn-ghost,.btn-accent{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:44px;padding:0 22px;border-radius:var(--r-btn);
  font-size:.9375rem;font-weight:700;line-height:1;
  border:1px solid transparent;
  transition:background .2s var(--ease),color .2s var(--ease),border-color .2s var(--ease),transform .2s var(--ease),box-shadow .2s var(--ease);
}
.btn-main{background:var(--brand-700);border-color:var(--brand-700);color:#fff}
.btn-main:hover{background:var(--brand-900);border-color:var(--brand-900);color:#fff;transform:translateY(-2px);box-shadow:0 12px 26px rgba(11,31,25,.18)}
.btn-ghost{background:transparent;border-color:var(--line);color:var(--text-900)}
.btn-ghost:hover{border-color:var(--brand-700);color:var(--brand-700);transform:translateY(-2px)}
.btn-accent{background:var(--accent-500);border-color:var(--accent-500);color:#fff}
.btn-accent:hover{background:#e85c30;border-color:#e85c30;color:#fff;transform:translateY(-2px);box-shadow:0 12px 26px rgba(255,107,61,.24)}
.arrow-link{
  display:inline-flex;align-items:center;gap:7px;
  font-size:.9375rem;font-weight:700;color:var(--brand-700);
  border-bottom:1px solid rgba(15,61,51,.28);padding-bottom:2px;
  transition:color .2s var(--ease),border-color .2s var(--ease);
}
.arrow-link svg{width:15px;height:15px;transition:transform .2s var(--ease)}
.arrow-link:hover{color:var(--accent-500);border-color:var(--accent-500)}
.arrow-link:hover svg{transform:translateX(4px)}

/* ---------- 文章区 ---------- */
.article-zone{max-width:1180px;margin:0 auto;padding:0 32px}
.article-col{max-width:760px;margin:0 auto}
.crumbs{
  display:flex;flex-wrap:wrap;align-items:center;gap:8px;
  padding:34px 0 22px;font-size:.8125rem;color:var(--text-400);
}
.crumbs a{color:var(--text-600)}
.crumbs a:hover{color:var(--brand-700)}
.crumbs .sep{opacity:.5}
.crumb-current{
  color:var(--text-400);max-width:280px;
  white-space:nowrap;overflow:hidden;text-overflow:ellipsis;
}
.article-head{padding-bottom:26px}
.badge-cat{
  display:inline-flex;align-items:center;height:28px;padding:0 13px;
  border-radius:999px;border:1px solid var(--line);background:var(--surface-2);
  color:var(--brand-700);font-size:.75rem;font-weight:700;letter-spacing:.04em;
}
.article-head h1{
  margin-top:18px;
  font-size:clamp(1.75rem,3.6vw,2.75rem);
  font-weight:900;line-height:1.25;letter-spacing:-.02em;
  color:var(--text-900);
}
.meta-row{
  display:flex;flex-wrap:wrap;align-items:center;gap:10px;
  margin-top:18px;font-size:.8125rem;color:var(--text-400);
}
.meta-row .num{color:var(--brand-700);font-weight:700}
.meta-row .dot{width:3px;height:3px;border-radius:50%;background:var(--text-400);opacity:.5}
.hero-figure{
  margin:6px 0 40px;border-radius:var(--r-img);overflow:hidden;
  border:1px solid var(--line);box-shadow:0 1px 0 rgba(255,255,255,.6) inset;
}
.hero-figure img{width:100%;aspect-ratio:16/9;object-fit:cover}

.prose{font-size:1.0625rem;line-height:1.85;color:var(--text-900);word-break:break-word}
.prose > * + *{margin-top:1.25em}
.prose p{margin:0}
.prose h2{
  position:relative;margin-top:48px;padding-top:18px;
  font-size:clamp(1.25rem,2.2vw,1.5rem);font-weight:800;line-height:1.4;
}
.prose h2::before{
  content:"";position:absolute;top:0;left:0;
  width:36px;height:3px;border-radius:2px;background:var(--accent-500);
}
.prose h3{margin-top:34px;font-size:1.25rem;font-weight:700;line-height:1.45}
.prose h4{margin-top:26px;font-size:1.0625rem;font-weight:700}
.prose ul{list-style:none;padding-left:1.15em}
.prose ul li{position:relative}
.prose ul li::before{
  content:"";position:absolute;left:-1.05em;top:.72em;
  width:6px;height:6px;border-radius:50%;background:var(--brand-500);
}
.prose ol{list-style:none;counter-reset:li;padding-left:1.9em}
.prose ol li{position:relative;counter-increment:li}
.prose ol li::before{
  content:counter(li,decimal-leading-zero);
  position:absolute;left:-1.95em;top:0;
  font-family:'Inter','DIN Alternate',ui-monospace,monospace;
  font-size:.8125em;font-weight:700;color:var(--accent-500);line-height:1.95;
}
.prose li + li{margin-top:.5em}
.prose blockquote{
  margin:1.5em 0;padding:22px 24px;
  border-left:3px solid var(--accent-500);background:var(--surface-2);
  border-radius:0 var(--r-img) var(--r-img) 0;color:var(--text-600);
}
.prose img{border-radius:var(--r-img);border:1px solid var(--line);margin:1.75em auto}
.prose figure{margin:1.75em 0}
.prose figure img{margin:0 auto}
.prose figcaption{margin-top:10px;text-align:center;font-size:.8125rem;color:var(--text-400)}
.prose a{color:var(--brand-700);text-decoration:underline;text-underline-offset:3px;text-decoration-thickness:1px}
.prose a:hover{color:var(--accent-500)}
.prose strong{font-weight:700}
.prose hr{border:0;border-top:1px solid var(--line);margin:2.5em 0}
.prose code{background:var(--surface-2);padding:2px 6px;border-radius:6px;font-size:.9em}
.prose table{width:100%;border-collapse:collapse;font-size:.9375rem;margin:1.5em 0}
.prose th,.prose td{border:1px solid var(--line);padding:10px 13px;text-align:left}
.prose th{background:var(--surface-2);font-weight:700}

.empty-state{
  text-align:center;padding:64px 24px;background:var(--surface);
  border:1px solid var(--line);border-radius:var(--r-card);
}
.empty-state svg{width:36px;height:36px;color:var(--brand-500);margin:0 auto 16px}
.empty-state p{font-size:1.0625rem;font-weight:700;color:var(--text-900);margin-bottom:6px}
.empty-state span{display:block;font-size:.875rem;color:var(--text-400);margin-bottom:22px}

.back-row{
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:18px;
  margin-top:52px;padding-top:28px;border-top:1px solid var(--line);
}
.pager{
  display:flex;flex-wrap:wrap;align-items:center;gap:14px;
  font-size:.875rem;color:var(--text-400);
}
.pager a{color:var(--text-600);max-width:230px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.pager a:hover{color:var(--brand-700)}

/* ---------- 相关推荐 ---------- */
.related{margin-top:76px;padding-top:44px;border-top:1px solid var(--line)}
.related-head{display:flex;align-items:flex-end;justify-content:space-between;gap:20px;margin-bottom:28px}
.related-head h2{font-size:clamp(1.25rem,2.4vw,1.5rem);font-weight:800;letter-spacing:-.01em}
.related-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.rel-card{
  display:flex;flex-direction:column;
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-card);
  overflow:hidden;
  transition:transform .25s var(--ease),box-shadow .25s var(--ease),border-color .25s var(--ease);
}
.rel-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover);border-color:rgba(15,61,51,.2)}
.rel-card img{width:100%;aspect-ratio:16/9;object-fit:cover}
.rel-body{padding:18px 18px 20px;display:flex;flex-direction:column;flex:1 1 auto}
.rel-body h3{
  font-size:1.0625rem;font-weight:700;line-height:1.5;margin-bottom:12px;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
  transition:color .2s var(--ease);
}
.rel-card:hover .rel-body h3{color:var(--brand-700)}
.rel-date{margin-top:auto;font-size:.8125rem;color:var(--text-400)}
.rel-date .num{color:var(--brand-500);font-weight:700}

/* ---------- 文章尾部 CTA ---------- */
.article-cta{margin-top:72px}
.cta-panel{
  position:relative;overflow:hidden;
  background:var(--brand-900);color:#fff;
  border-radius:24px;padding:44px 40px;
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:26px;
}
.cta-panel::after{
  content:"";position:absolute;right:-60px;top:-70px;width:240px;height:240px;
  border-radius:50%;background:rgba(23,96,79,.5);pointer-events:none;
}
.cta-copy{position:relative;z-index:1;max-width:560px}
.cta-copy h2{font-size:clamp(1.25rem,2.6vw,1.75rem);font-weight:800;line-height:1.35;margin-bottom:10px}
.cta-copy p{color:rgba(255,255,255,.72);font-size:.9375rem;line-height:1.7}
.cta-panel .btn-accent{position:relative;z-index:1}

/* ---------- 页脚 ---------- */
.site-footer{
  margin-top:88px;background:var(--brand-900);color:rgba(255,255,255,.7);
  border-top:1px solid rgba(255,255,255,.10);
}
.site-footer .shell{padding-top:58px;padding-bottom:34px}
.foot-grid{display:grid;grid-template-columns:1.7fr 1fr 1fr 1.2fr;gap:34px}
.foot-brand .brand-mark{background:rgba(255,255,255,.08);color:#fff;margin-bottom:14px}
.foot-brand strong{display:block;color:#fff;font-size:1.0625rem;font-weight:900;letter-spacing:-.01em;margin-bottom:10px}
.foot-brand p{font-size:.875rem;line-height:1.75;color:rgba(255,255,255,.6);max-width:320px}
.foot-title{color:#fff;font-size:.75rem;font-weight:700;letter-spacing:.1em;margin-bottom:16px}
.foot-links{display:flex;flex-direction:column;gap:11px}
.foot-links a{
  font-size:.875rem;color:rgba(255,255,255,.7);
  border-bottom:1px solid transparent;align-self:flex-start;
  transition:color .2s var(--ease),border-color .2s var(--ease);
}
.foot-links a:hover{color:var(--accent-500);border-bottom-color:var(--accent-500)}
.foot-contact p{font-size:.875rem;margin-bottom:10px;color:rgba(255,255,255,.7)}
.foot-contact .num{color:#fff;font-weight:700}
.foot-bottom{
  display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;align-items:center;
  margin-top:44px;padding-top:22px;border-top:1px solid rgba(255,255,255,.10);
  font-size:.8125rem;color:rgba(255,255,255,.45);
}

/* ---------- 动效 ---------- */
.fadeup{opacity:0;transform:translateY(8px);animation:fadeup .48s var(--ease) forwards}
@keyframes fadeup{to{opacity:1;transform:translateY(0)}}
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  *,*::before,*::after{animation-duration:.001ms !important;animation-iteration-count:1 !important;transition-duration:.001ms !important}
  .fadeup{opacity:1;transform:none}
}

/* ---------- 响应式 ---------- */
@media (max-width:1100px){
  .foot-grid{grid-template-columns:1.5fr 1fr 1fr;gap:28px}
  .foot-contact{grid-column:1 / -1}
}
@media (max-width:991px){
  .article-zone{padding:0 20px}
  .shell{padding-left:20px;padding-right:20px}
  .related-grid{grid-template-columns:repeat(2,1fr)}
  .site-footer .shell{padding-top:48px}
  .site-footer{margin-top:64px}
}
@media (max-width:767px){
  .crumbs{padding:22px 0 16px}
  .article-head h1{margin-top:14px}
  .hero-figure{margin-bottom:28px}
  .prose{font-size:1rem;line-height:1.8}
  .prose h2{margin-top:40px}
  .related-grid{grid-template-columns:1fr}
  .related-head{flex-direction:column;align-items:flex-start;gap:10px}
  .cta-panel{padding:32px 24px;border-radius:20px}
  .foot-grid{grid-template-columns:1fr;gap:26px}
  .foot-contact{grid-column:auto}
  .site-footer .shell{padding-bottom:26px}
  .back-row{align-items:flex-start;flex-direction:column}
}
@media (max-width:575px){
  .shell{padding-left:16px;padding-right:16px}
  .article-zone{padding:0 16px}
  .crumb-current{max-width:170px}
  .btn-main,.btn-ghost,.btn-accent{width:100%}
  .back-row .btn-main,.back-row .btn-ghost{width:100%}
}

/* roulang page: category1 */
:root{
  --brand-900:#0B1F19;
  --brand-700:#0F3D33;
  --brand-500:#17604F;
  --accent-500:#FF6B3D;
  --paper:#F7F4EE;
  --surface:#FFFFFF;
  --surface-2:#EFEAE0;
  --line:rgba(11,31,25,.10);
  --text-900:#14181A;
  --text-600:#4A5250;
  --text-400:#8A9391;

  --radius-card:16px;
  --radius-img:12px;
  --radius-btn:10px;
  --radius-cta:24px;
  --shadow-hover:0 18px 40px rgba(11,31,25,.08);
  --ease:cubic-bezier(.22,.61,.36,1);
  --rail:232px;

  --bs-primary:#0F3D33;
  --bs-primary-rgb:15,61,51;
  --bs-body-bg:#F7F4EE;
  --bs-body-color:#4A5250;
  --bs-border-color:rgba(11,31,25,.10);
  --bs-border-radius:10px;
  --bs-border-radius-lg:16px;
  --bs-border-radius-sm:8px;
  --bs-body-font-family:'Noto Sans SC','PingFang SC','Microsoft YaHei',sans-serif;
  --bs-link-color:#0F3D33;
  --bs-link-hover-color:#17604F;
  --bs-focus-ring-width:2px;
  --bs-focus-ring-color:rgba(255,107,61,.55);
}

*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--paper);
  color:var(--text-600);
  font-family:'Noto Sans SC','PingFang SC','Microsoft YaHei',sans-serif;
  font-size:1rem;
  line-height:1.75;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border-radius:var(--radius-img);}
a{color:var(--brand-700);text-decoration:none;transition:color .2s var(--ease),border-color .2s var(--ease);}
a:hover{color:var(--brand-500);}
h1,h2,h3,h4{color:var(--text-900);margin:0;letter-spacing:-0.01em;}
p{margin:0;}
ul{margin:0;padding:0;list-style:none;}
button{font-family:inherit;}
.num{font-family:'Inter','DIN Alternate',ui-monospace,SFMono-Regular,Menlo,monospace;font-variant-numeric:tabular-nums;}
:focus-visible{outline:2px solid var(--accent-500);outline-offset:2px;border-radius:4px;}

.shell{width:100%;max-width:1180px;margin:0 auto;padding:0 32px;}

/* ============ 左侧竖向导航 ============ */
.side-rail{
  position:fixed;top:0;left:0;width:var(--rail);height:100vh;
  display:flex;flex-direction:column;
  background:var(--paper);
  border-right:1px solid var(--line);
  padding:28px 20px 22px;
  z-index:60;
}
.brand{display:flex;align-items:center;gap:10px;color:var(--text-900);padding:0 6px 22px;}
.brand:hover{color:var(--brand-700);}
.brand-mark{
  width:34px;height:34px;flex:0 0 34px;display:grid;place-items:center;
  border-radius:10px;background:var(--brand-700);color:#fff;
}
.brand-mark svg{width:19px;height:19px;}
.brand-text{font-size:1.0625rem;font-weight:800;letter-spacing:-0.01em;line-height:1.2;}
.side-menu{display:flex;flex-direction:column;gap:2px;margin-top:6px;}
.side-link{
  position:relative;display:flex;align-items:center;
  height:44px;padding:0 12px 0 16px;border-radius:10px;
  font-size:.9375rem;font-weight:500;color:var(--text-600);
  transition:background .2s var(--ease),color .2s var(--ease);
}
.side-link::before{
  content:"";position:absolute;left:0;top:11px;bottom:11px;width:3px;border-radius:3px;
  background:transparent;transition:background .2s var(--ease);
}
.side-link:hover{background:rgba(15,61,51,.06);color:var(--brand-700);}
.side-link.is-active{
  background:rgba(15,61,51,.08);color:var(--brand-700);font-weight:700;
}
.side-link.is-active::before{background:var(--accent-500);}
.rail-foot{margin-top:auto;border-top:1px solid var(--line);padding-top:18px;font-size:.8125rem;color:var(--text-400);}
.rail-foot p{line-height:1.9;}
.rail-label{font-size:.75rem;letter-spacing:.06em;color:var(--text-600);font-weight:700;text-transform:uppercase;margin-bottom:4px;}

/* ============ 移动顶栏 ============ */
.mobile-topbar{
  display:none;position:sticky;top:0;z-index:70;
  height:60px;align-items:center;justify-content:space-between;
  background:rgba(247,244,238,.96);backdrop-filter:blur(10px);
  border-bottom:1px solid var(--line);padding:0 18px;
  transition:box-shadow .25s var(--ease);
}
.mobile-topbar.is-scrolled{box-shadow:0 8px 20px rgba(11,31,25,.06);}
.mobile-brand{display:flex;align-items:center;gap:9px;color:var(--text-900);font-weight:800;font-size:1rem;}
.mobile-brand .brand-mark{width:30px;height:30px;flex:0 0 30px;}
.burger{
  width:44px;height:44px;border:1px solid var(--line);border-radius:10px;background:var(--surface);
  display:grid;place-items:center;gap:4px;padding:0;cursor:pointer;
}
.burger span{display:block;width:18px;height:2px;background:var(--text-900);border-radius:2px;transition:transform .2s var(--ease);}
.burger:hover{border-color:var(--brand-500);}
.burger:hover span{background:var(--brand-700);}

.offcanvas.mobile-drawer{background:var(--paper);width:290px;}
.mobile-drawer .drawer-head{display:flex;align-items:center;justify-content:space-between;padding:20px 20px 10px;}
.mobile-drawer .brand-text{font-size:1rem;}
.mobile-drawer .side-menu{padding:10px 14px;gap:4px;}
.mobile-drawer .side-link{height:48px;}
.mobile-drawer .side-link.is-active{color:var(--brand-700);background:rgba(15,61,51,.06);}
.drawer-foot{margin:auto 0 0;padding:18px 20px 26px;border-top:1px solid var(--line);font-size:.8125rem;color:var(--text-400);}

/* ============ 主体布局 ============ */
.page-main{padding-bottom:0;}
@media (min-width:992px){
  body{padding-left:var(--rail);}
}

/* ============ Hero ============ */
.hero{position:relative;overflow:hidden;background:var(--brand-900);color:#fff;}
.hero-bg{position:absolute;inset:0;background-image:url('/assets/images/backpic/back-1.png');background-size:cover;background-position:center;opacity:.38;}
.hero-mask{position:absolute;inset:0;background:linear-gradient(100deg,rgba(11,31,25,.94) 8%,rgba(11,31,25,.72) 55%,rgba(11,31,25,.42) 100%);}
.hero-inner{position:relative;z-index:2;padding:76px 0 68px;}
.crumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:.8125rem;color:rgba(255,255,255,.66);margin-bottom:22px;}
.crumb a{color:rgba(255,255,255,.78);border-bottom:1px solid transparent;}
.crumb a:hover{color:#fff;border-bottom-color:var(--accent-500);}
.hero h1{
  color:#fff;font-size:clamp(2.25rem,5vw,3.75rem);font-weight:900;line-height:1.12;letter-spacing:-0.02em;
  max-width:16em;
}
.hero-lead{margin-top:16px;font-size:1.0625rem;line-height:1.75;color:rgba(255,255,255,.80);max-width:34em;}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:30px;}
.hero-stats{display:flex;flex-wrap:wrap;gap:44px;margin-top:44px;padding-top:26px;border-top:1px solid rgba(255,255,255,.16);}
.hstat b{display:block;font-size:1.75rem;font-weight:800;color:#fff;line-height:1.2;}
.hstat span{font-size:.8125rem;color:rgba(255,255,255,.62);}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:44px;padding:0 22px;border-radius:var(--radius-btn);
  font-size:.9375rem;font-weight:700;cursor:pointer;border:1px solid transparent;
  transition:transform .2s var(--ease),background .2s var(--ease),color .2s var(--ease),border-color .2s var(--ease),box-shadow .25s var(--ease);
}
.btn-primary{
  background:var(--brand-700);color:#fff;border-color:var(--brand-700);
}
.btn-primary:hover{background:var(--brand-500);border-color:var(--brand-500);color:#fff;transform:translateY(-2px);box-shadow:0 12px 26px rgba(11,31,25,.22);}
.btn-outline{
  background:transparent;color:var(--brand-700);border-color:rgba(15,61,51,.35);
}
.btn-outline:hover{color:var(--brand-700);border-color:var(--brand-700);background:rgba(15,61,51,.05);transform:translateY(-2px);}
.btn-ghost-light{background:transparent;color:#fff;border-color:rgba(255,255,255,.42);}
.btn-ghost-light:hover{background:rgba(255,255,255,.10);color:#fff;border-color:#fff;transform:translateY(-2px);}
.btn-accent{background:var(--accent-500);color:#fff;border-color:var(--accent-500);}
.btn-accent:hover{background:#ef5a2c;border-color:#ef5a2c;color:#fff;transform:translateY(-2px);box-shadow:0 12px 26px rgba(255,107,61,.30);}
.btn:active{transform:translateY(0);}

.text-link{
  display:inline-flex;align-items:center;gap:6px;
  font-size:.9375rem;font-weight:700;color:var(--brand-700);
  border-bottom:1px solid var(--line);padding-bottom:2px;
  transition:border-color .2s var(--ease),color .2s var(--ease);
}
.text-link svg{width:15px;height:15px;transition:transform .2s var(--ease);}
.text-link:hover{color:var(--brand-500);border-bottom-color:var(--brand-500);}
.text-link:hover svg{transform:translateX(4px);}

/* ============ 锚点条 ============ */
.anchor-bar{
  position:sticky;top:0;z-index:40;
  background:rgba(247,244,238,.95);backdrop-filter:blur(10px);
  border-bottom:1px solid var(--line);
}
.anchor-inner{display:flex;gap:6px;overflow-x:auto;padding:0;scrollbar-width:none;}
.anchor-inner::-webkit-scrollbar{display:none;}
.anchor-link{
  position:relative;flex:0 0 auto;padding:17px 16px;
  font-size:.9375rem;font-weight:600;color:var(--text-600);white-space:nowrap;
  transition:color .2s var(--ease);
}
.anchor-link::after{
  content:"";position:absolute;left:16px;right:16px;bottom:0;height:2px;border-radius:2px;
  background:transparent;transition:background .2s var(--ease);
}
.anchor-link:hover{color:var(--brand-700);}
.anchor-link.is-current{color:var(--brand-700);font-weight:800;}
.anchor-link.is-current::after{background:var(--accent-500);}

/* ============ 板块通用 ============ */
.section{padding:80px 0;}
.section--alt{background:var(--surface-2);}
.section-head{max-width:44em;margin-bottom:40px;}
.section-head h2{font-size:clamp(1.625rem,3vw,2.375rem);font-weight:800;line-height:1.2;}
.section-head p{margin-top:16px;font-size:1.0625rem;color:var(--text-600);}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:.75rem;font-weight:700;letter-spacing:.06em;color:var(--brand-700);
  padding:5px 12px;border:1px solid var(--line);border-radius:999px;background:var(--surface);
  margin-bottom:18px;
}
.eyebrow i{display:block;width:6px;height:6px;border-radius:50%;background:var(--accent-500);}

/* ============ 信息卡片流 ============ */
.card-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:32px;}
.info-card{
  position:relative;display:flex;flex-direction:column;
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-card);
  padding:24px;transition:transform .25s var(--ease),box-shadow .25s var(--ease),border-color .25s var(--ease);
}
.info-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover);border-color:rgba(15,61,51,.22);}
.card-media{margin:-24px -24px 20px;border-radius:var(--radius-card) var(--radius-card) 0 0;overflow:hidden;}
.card-media img{width:100%;aspect-ratio:16/10;object-fit:cover;border-radius:0;}
.card-num{
  font-family:'Inter','DIN Alternate',ui-monospace,monospace;font-variant-numeric:tabular-nums;
  font-size:.8125rem;font-weight:700;color:var(--accent-500);letter-spacing:.08em;margin-bottom:10px;
}
.info-card h3{font-size:1.1875rem;font-weight:700;line-height:1.4;margin-bottom:10px;}
.info-card p{font-size:.9375rem;color:var(--text-600);line-height:1.75;margin-bottom:18px;}
.info-card .text-link{margin-top:auto;align-self:flex-start;}

.badge-tag{
  display:inline-flex;align-items:center;
  font-size:.75rem;font-weight:700;letter-spacing:.04em;
  color:var(--brand-700);background:var(--paper);
  border:1px solid var(--line);border-radius:999px;padding:3px 11px;margin-bottom:12px;
}

/* ============ 勾选要点 ============ */
.check-list{display:flex;flex-direction:column;gap:12px;}
.check-list li{display:flex;gap:10px;font-size:.9375rem;color:var(--text-600);line-height:1.7;}
.check-list svg{flex:0 0 18px;width:18px;height:18px;margin-top:4px;color:var(--brand-500);}

/* ============ 序号条目 ============ */
.step-list{border-top:1px solid var(--line);}
.step-row{
  display:flex;align-items:flex-start;gap:22px;
  padding:26px 4px;border-bottom:1px solid var(--line);
  transition:background .2s var(--ease);
}
.step-row:hover{background:rgba(15,61,51,.035);}
.step-index{
  font-family:'Inter','DIN Alternate',ui-monospace,monospace;font-variant-numeric:tabular-nums;
  font-size:1rem;font-weight:800;color:var(--brand-500);flex:0 0 36px;padding-top:3px;
}
.step-row h3{font-size:1.125rem;font-weight:700;margin-bottom:6px;}
.step-row p{font-size:.9375rem;color:var(--text-600);}

/* ============ 提示条 ============ */
.notice-band{
  display:flex;flex-wrap:wrap;gap:18px;align-items:center;justify-content:space-between;
  background:var(--surface);border:1px solid var(--line);border-left:3px solid var(--accent-500);
  border-radius:var(--radius-card);padding:22px 26px;margin-top:40px;
}
.notice-band strong{display:block;color:var(--text-900);font-size:1.0625rem;font-weight:700;margin-bottom:4px;}
.notice-band p{font-size:.9375rem;color:var(--text-600);}

/* ============ FAQ ============ */
.faq-wrap{max-width:880px;}
.accordion-item{background:transparent;border:0;border-bottom:1px solid var(--line);}
.accordion-item:first-of-type{border-top:1px solid var(--line);}
.accordion-button{
  position:relative;background:transparent;border:0;border-radius:0;
  padding:24px 44px 24px 26px;
  font-size:1.0625rem;font-weight:700;color:var(--text-900);
  box-shadow:none;
}
.accordion-button::before{
  content:"";position:absolute;left:0;top:31px;width:10px;height:10px;border-radius:2px;
  background:transparent;transition:background .22s var(--ease);
}
.accordion-button:not(.collapsed){color:var(--brand-700);background:transparent;box-shadow:none;}
.accordion-button:not(.collapsed)::before{background:var(--accent-500);}
.accordion-button:focus{box-shadow:none;border-color:transparent;outline:2px solid var(--accent-500);outline-offset:-2px;}
.accordion-button::after{
  background-image:none;
  content:"";position:absolute;right:20px;top:50%;width:14px;height:14px;margin:0;
  border-right:1.5px solid var(--text-400);border-bottom:1.5px solid var(--text-400);
  transform:translateY(-70%) rotate(45deg);transition:transform .22s var(--ease),border-color .22s var(--ease);
}
.accordion-button:not(.collapsed)::after{border-color:var(--brand-700);transform:translateY(-30%) rotate(-135deg);}
.accordion-button:hover::after{border-color:var(--accent-500);}
.accordion-body{padding:0 44px 28px 26px;color:var(--text-600);font-size:1rem;line-height:1.85;}

/* ============ CTA ============ */
.cta-section{padding:0 0 80px;}
.cta-panel{
  display:flex;flex-wrap:wrap;gap:26px;align-items:center;justify-content:space-between;
  background:var(--brand-900);border-radius:var(--radius-cta);
  padding:44px 48px;position:relative;overflow:hidden;
}
.cta-panel::after{
  content:"";position:absolute;right:-60px;bottom:-90px;width:260px;height:260px;border-radius:50%;
  background:rgba(255,107,61,.12);pointer-events:none;
}
.cta-panel h2{color:#fff;font-size:clamp(1.5rem,2.6vw,2rem);font-weight:800;line-height:1.25;position:relative;z-index:2;}
.cta-panel p{color:rgba(255,255,255,.72);margin-top:10px;font-size:1rem;position:relative;z-index:2;max-width:36em;}
.cta-panel .btn{position:relative;z-index:2;}

/* ============ 页脚 ============ */
.site-footer{background:var(--brand-900);color:rgba(255,255,255,.72);padding:64px 0 28px;border-top:1px solid rgba(255,255,255,.10);}
.foot-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.2fr;gap:32px;}
.foot-brand .brand-mark{background:var(--brand-500);margin-bottom:14px;}
.foot-brand strong{display:block;color:#fff;font-size:1.125rem;font-weight:800;margin-bottom:10px;}
.foot-brand p{font-size:.875rem;line-height:1.85;color:rgba(255,255,255,.62);max-width:30em;}
.foot-title{color:#fff;font-size:.8125rem;font-weight:700;letter-spacing:.06em;margin-bottom:16px;}
.foot-links{display:flex;flex-direction:column;gap:10px;}
.foot-links a,.foot-contact a{
  color:rgba(255,255,255,.72);font-size:.875rem;
  border-bottom:1px solid transparent;align-self:flex-start;
  transition:color .2s var(--ease),border-color .2s var(--ease);
}
.foot-links a:hover,.foot-contact a:hover{color:var(--accent-500);border-bottom-color:var(--accent-500);}
.foot-contact p{font-size:.875rem;line-height:1.95;color:rgba(255,255,255,.62);}
.foot-bottom{
  display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;
  margin-top:48px;padding-top:22px;border-top:1px solid rgba(255,255,255,.12);
  font-size:.8125rem;color:rgba(255,255,255,.50);
}

/* ============ 动效 ============ */
.reveal{opacity:0;transform:translateY(8px);}
.reveal.is-visible{opacity:1;transform:none;transition:opacity .48s var(--ease),transform .48s var(--ease);}
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto;}
  *,*::before,*::after{animation:none!important;transition:none!important;}
  .reveal{opacity:1;transform:none;}
}

/* ============ 响应式 ============ */
@media (max-width:1199.98px){
  .card-grid{gap:24px;}
}
@media (max-width:991.98px){
  .side-rail{display:none;}
  .mobile-topbar{display:flex;}
  .hero-inner{padding:52px 0 48px;}
  .hero-stats{gap:28px;margin-top:34px;}
  .anchor-bar{top:60px;}
  .section{padding:56px 0;}
  .card-grid{grid-template-columns:repeat(2,1fr);gap:20px;}
  .cta-section{padding-bottom:56px;}
  .cta-panel{padding:32px 26px;border-radius:20px;}
  .foot-grid{grid-template-columns:1fr 1fr;gap:28px;}
}
@media (max-width:575.98px){
  .shell{padding:0 20px;}
  .hero-lead{font-size:1rem;}
  .hero-actions{gap:10px;}
  .hero-actions .btn{width:100%;}
  .hero-stats{gap:22px 32px;}
  .hstat b{font-size:1.5rem;}
  .card-grid{grid-template-columns:1fr;gap:20px;}
  .section{padding:48px 0;}
  .section-head{margin-bottom:28px;}
  .anchor-link{padding:15px 12px;}
  .accordion-button{padding:20px 38px 20px 22px;font-size:1rem;}
  .accordion-button::before{top:27px;}
  .accordion-body{padding:0 20px 24px 22px;}
  .step-row{gap:14px;padding:22px 0;}
  .foot-grid{grid-template-columns:1fr;}
  .foot-bottom{justify-content:flex-start;}
}

/* roulang page: category3 */
:root{
  --brand-900:#0B1F19;
  --brand-700:#0F3D33;
  --brand-500:#17604F;
  --accent-500:#FF6B3D;
  --paper:#F7F4EE;
  --surface:#FFFFFF;
  --surface-2:#EFEAE0;
  --line:rgba(11,31,25,.10);
  --text-900:#14181A;
  --text-600:#4A5250;
  --text-400:#8A9391;
  --radius-card:16px;
  --radius-img:12px;
  --radius-btn:10px;
  --radius-cta:24px;
  --shadow-hover:0 18px 40px rgba(11,31,25,.08);
  --ease:cubic-bezier(.22,.61,.36,1);
  --bs-primary:#0F3D33;
  --bs-body-bg:#F7F4EE;
  --bs-body-color:#14181A;
  --bs-border-color:rgba(11,31,25,.10);
  --bs-link-color:#0F3D33;
  --bs-link-hover-color:#17604F;
  --bs-font-sans-serif:'Noto Sans SC','PingFang 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:'Noto Sans SC','PingFang SC','Microsoft YaHei',sans-serif;
  font-size:1rem;
  line-height:1.75;
  color:var(--text-900);
  background:var(--paper);
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{max-width:100%;display:block;}
a{color:var(--brand-700);text-decoration:none;}
a:hover{color:var(--brand-500);}
h1,h2,h3,h4,p,ul,ol,figure{margin:0;}
ul,ol{padding:0;list-style:none;}
button{font-family:inherit;}
:focus-visible{outline:2px solid var(--accent-500);outline-offset:2px;}
.num{font-family:'Inter','DIN Alternate',ui-monospace,SFMono-Regular,monospace;font-variant-numeric:tabular-nums;letter-spacing:.01em;}
.shell{width:100%;max-width:1180px;margin:0 auto;padding:0 24px;}

/* ============ 左侧竖向导航 ============ */
.sidebar{
  position:fixed;top:0;left:0;bottom:0;width:232px;
  background:var(--surface);
  border-right:1px solid var(--line);
  display:flex;flex-direction:column;
  padding:28px 20px 24px;
  z-index:1030;
}
.brand{display:flex;align-items:center;gap:10px;color:var(--brand-900);}
.brand:hover{color:var(--brand-700);}
.brand-mark{
  width:34px;height:34px;flex:0 0 34px;border-radius:10px;
  background:var(--brand-700);color:#fff;
  display:inline-flex;align-items:center;justify-content:center;
}
.brand-mark svg{width:19px;height:19px;}
.brand-text{display:flex;flex-direction:column;line-height:1.15;}
.brand-text strong{font-size:1.0625rem;font-weight:900;letter-spacing:-.01em;}
.brand-text span{font-size:.6875rem;color:var(--text-400);letter-spacing:.12em;}
.side-menu{display:flex;flex-direction:column;gap:2px;margin-top:34px;}
.side-link{
  position:relative;display:flex;align-items:center;
  height:44px;padding:0 12px;border-radius:var(--radius-btn);
  color:var(--text-600);font-size:.9375rem;font-weight:500;
  transition:background .2s var(--ease),color .2s var(--ease),transform .2s var(--ease);
}
.side-link:hover{background:var(--surface-2);color:var(--brand-700);transform:translateX(2px);}
.side-link.is-active{background:rgba(15,61,51,.08);color:var(--brand-700);font-weight:700;}
.side-link.is-active::before{
  content:"";position:absolute;left:-20px;top:11px;bottom:11px;width:3px;
  background:var(--accent-500);border-radius:0 3px 3px 0;
}
.side-foot{margin-top:auto;padding-top:22px;border-top:1px solid var(--line);font-size:.8125rem;color:var(--text-400);line-height:1.9;}
.side-foot strong{display:block;color:var(--text-600);font-size:.8125rem;font-weight:700;margin-bottom:4px;}
.side-foot a{color:var(--brand-700);}
.side-foot a:hover{text-decoration:underline;}

/* ============ 移动端顶栏 ============ */
.mobile-bar{
  display:none;position:sticky;top:0;z-index:1040;
  height:60px;align-items:center;justify-content:space-between;
  padding:0 16px;background:var(--paper);border-bottom:1px solid var(--line);
  transition:box-shadow .25s var(--ease);
}
.mobile-bar.is-scrolled{box-shadow:0 8px 20px rgba(11,31,25,.06);}
.mobile-bar .brand-mark{width:30px;height:30px;flex:0 0 30px;}
.mobile-bar .brand-text strong{font-size:.9375rem;}
.mobile-bar .brand-text span{display:none;}
.menu-toggle{
  width:44px;height:44px;border:1px solid var(--line);border-radius:var(--radius-btn);
  background:var(--surface);display:inline-flex;flex-direction:column;
  align-items:center;justify-content:center;gap:4px;cursor:pointer;
  transition:border-color .2s var(--ease),background .2s var(--ease);
}
.menu-toggle span{display:block;width:18px;height:2px;background:var(--brand-700);border-radius:2px;transition:transform .2s var(--ease);}
.menu-toggle:hover{border-color:var(--brand-700);background:#fff;}
.menu-toggle:active{transform:scale(.96);}

.drawer{background:var(--paper);width:290px !important;border-right:1px solid var(--line);}
.drawer .offcanvas-header{padding:18px 20px;border-bottom:1px solid var(--line);}
.drawer .offcanvas-title{font-weight:900;color:var(--brand-900);font-size:1rem;}
.drawer .btn-close{opacity:.55;filter:none;}
.drawer .btn-close:hover{opacity:.9;}
.drawer .offcanvas-body{padding:16px 12px;}
.drawer-menu{display:flex;flex-direction:column;gap:2px;}
.drawer-menu .side-link{height:46px;font-size:.9375rem;}
.drawer-menu .side-link.is-active::before{left:-12px;}
.drawer-foot{margin-top:24px;padding:16px 12px 0;border-top:1px solid var(--line);font-size:.8125rem;color:var(--text-400);line-height:1.9;}

/* ============ 主体区 ============ */
.main{margin-left:232px;}
.crumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:.8125rem;color:var(--text-400);padding:28px 0 0;}
.crumb a{color:var(--text-600);}
.crumb a:hover{color:var(--brand-700);text-decoration:underline;}
.crumb .sep{color:var(--text-400);}
.crumb .cur{color:var(--brand-700);font-weight:600;}

.page-hero{padding:22px 0 40px;}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:.75rem;letter-spacing:.04em;color:var(--brand-700);
  background:var(--surface);border:1px solid var(--line);border-radius:999px;
  padding:6px 14px;margin-bottom:18px;
}
.eyebrow .dot{width:6px;height:6px;border-radius:50%;background:var(--accent-500);}
h1{
  font-size:clamp(2.25rem,5vw,3.75rem);
  font-weight:900;line-height:1.12;letter-spacing:-.02em;color:var(--brand-900);
  max-width:20ch;
}
.hero-lead{
  font-family:'Noto Serif SC',serif;font-weight:400;
  font-size:1.0625rem;line-height:1.85;color:var(--text-600);
  max-width:60ch;margin-top:18px;
}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:28px;}
.metrics{display:flex;flex-wrap:wrap;gap:36px;margin-top:38px;padding-top:26px;border-top:1px solid var(--line);}
.metrics .m-strong{font-size:1.5rem;font-weight:700;color:var(--brand-700);line-height:1.2;}
.metrics .m-weak{font-size:.8125rem;color:var(--text-400);margin-top:2px;}

/* ============ 按钮 ============ */
.btn-brand,.btn-ghost,.btn-accent{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:44px;padding:0 22px;border-radius:var(--radius-btn);
  font-size:.9375rem;font-weight:700;line-height:1;
  cursor:pointer;border:1px solid transparent;
  transition:background .2s var(--ease),color .2s var(--ease),border-color .2s var(--ease),transform .2s var(--ease),box-shadow .2s var(--ease);
}
.btn-brand{background:var(--brand-700);color:#fff;border-color:var(--brand-700);}
.btn-brand:hover{background:var(--brand-900);border-color:var(--brand-900);color:#fff;transform:translateY(-2px);box-shadow:0 12px 26px rgba(11,31,25,.18);}
.btn-brand:active{transform:translateY(0);box-shadow:none;}
.btn-ghost{background:transparent;color:var(--brand-700);border-color:rgba(11,31,25,.22);}
.btn-ghost:hover{border-color:var(--brand-700);color:var(--brand-700);transform:translateY(-2px);}
.btn-ghost:active{transform:translateY(0);}
.btn-accent{background:var(--accent-500);color:#fff;border-color:var(--accent-500);}
.btn-accent:hover{background:#ea5a2c;border-color:#ea5a2c;color:#fff;transform:translateY(-2px);box-shadow:0 12px 26px rgba(255,107,61,.28);}
.btn-accent:active{transform:translateY(0);box-shadow:none;}
.text-link{
  display:inline-flex;align-items:center;gap:6px;font-size:.9375rem;font-weight:600;
  color:var(--brand-700);border-bottom:1px solid rgba(15,61,51,.35);
  padding-bottom:2px;transition:border-color .2s var(--ease),color .2s var(--ease);
}
.text-link:hover{border-color:var(--accent-500);color:var(--brand-500);}
.text-link .arw{transition:transform .2s var(--ease);}
.text-link:hover .arw{transform:translateX(4px);}

/* ============ 检索说明条 ============ */
.filter-bar{
  background:var(--surface-2);
  border:1px solid var(--line);
  border-radius:var(--radius-card);
  padding:22px 26px;
  display:flex;gap:24px;align-items:center;justify-content:space-between;flex-wrap:wrap;
}
.filter-left{display:flex;flex-direction:column;gap:12px;min-width:260px;flex:1 1 440px;}
.filter-label{font-size:.75rem;letter-spacing:.04em;color:var(--text-400);}
.chip-row{display:flex;flex-wrap:wrap;gap:10px;}
.chip{
  display:inline-flex;align-items:center;gap:6px;
  border:1px solid var(--line);background:var(--surface);color:var(--brand-700);
  border-radius:999px;padding:6px 14px;font-size:.75rem;letter-spacing:.04em;
  transition:border-color .2s var(--ease),color .2s var(--ease),transform .2s var(--ease);
}
.chip:hover{border-color:var(--accent-500);color:var(--accent-500);transform:translateY(-2px);}
.filter-right{
  flex:0 1 320px;font-size:.875rem;color:var(--text-600);
  border-left:2px solid var(--accent-500);padding-left:16px;line-height:1.7;
}

/* ============ 区块通用 ============ */
.section{padding:80px 0;}
.section-tight{padding:56px 0 80px;}
.section-head{max-width:760px;margin-bottom:40px;}
h2{font-size:clamp(1.625rem,3vw,2.375rem);font-weight:800;line-height:1.2;letter-spacing:-.01em;color:var(--brand-900);}
.section-head p{margin-top:16px;color:var(--text-600);font-size:1.0625rem;line-height:1.8;}
.h2-rule{width:44px;height:3px;background:var(--accent-500);border-radius:3px;margin-top:16px;}

/* ============ 双列图文块 ============ */
.duo-list{display:flex;flex-direction:column;gap:0;}
.duo-block{
  display:grid;grid-template-columns:1fr 1fr;gap:40px;align-items:center;
  padding:44px 0;border-bottom:1px solid var(--line);
}
.duo-block:last-child{border-bottom:none;padding-bottom:0;}
.duo-block.is-rev .duo-media{order:-1;}
.duo-index{
  font-size:.75rem;letter-spacing:.06em;color:var(--accent-500);font-weight:700;
  display:inline-block;margin-bottom:10px;
}
.duo-copy h3{font-size:1.1875rem;font-weight:700;line-height:1.4;color:var(--brand-900);}
.duo-copy p{margin-top:14px;color:var(--text-600);font-size:1rem;line-height:1.8;}
.check-list{margin-top:18px;display:flex;flex-direction:column;gap:11px;}
.check-list li{display:flex;gap:10px;align-items:flex-start;font-size:.9375rem;color:var(--text-600);line-height:1.7;}
.check-list svg{flex:0 0 18px;width:18px;height:18px;margin-top:4px;color:var(--brand-500);}
.duo-media img{
  width:100%;aspect-ratio:16/10;object-fit:cover;
  border-radius:var(--radius-img);border:1px solid var(--line);
}

/* ============ 全宽提示条 ============ */
.notice-strip{
  margin-top:44px;background:var(--brand-900);color:#fff;border-radius:var(--radius-card);
  padding:26px 30px;display:flex;gap:20px;align-items:center;flex-wrap:wrap;
}
.notice-strip .ns-icon{
  width:38px;height:38px;flex:0 0 38px;border-radius:10px;
  background:rgba(255,255,255,.10);display:inline-flex;align-items:center;justify-content:center;color:var(--accent-500);
}
.notice-strip .ns-icon svg{width:20px;height:20px;}
.notice-strip strong{display:block;font-size:1rem;font-weight:700;color:#fff;}
.notice-strip span{display:block;font-size:.875rem;color:rgba(255,255,255,.72);margin-top:4px;line-height:1.7;}

/* ============ FAQ ============ */
.faq-wrap{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-card);padding:8px 26px;}
.accordion{--bs-accordion-border-width:0;--bs-accordion-bg:transparent;--bs-accordion-border-radius:0;}
.accordion-item{background:transparent;border:0;border-bottom:1px solid var(--line);}
.accordion-item:last-child{border-bottom:none;}
.accordion-button{
  position:relative;background:transparent;border:0;box-shadow:none;
  padding:22px 44px 22px 0;font-size:1rem;font-weight:700;color:var(--text-900);
  transition:color .2s var(--ease);
}
.accordion-button::before{
  content:"";position:absolute;left:-26px;top:50%;transform:translateY(-50%) scale(0);
  width:8px;height:8px;border-radius:2px;background:var(--accent-500);
  transition:transform .25s var(--ease);
}
.accordion-button:not(.collapsed){color:var(--brand-700);background:transparent;box-shadow:none;}
.accordion-button:not(.collapsed)::before{transform:translateY(-50%) scale(1);}
.accordion-button::after{
  width:11px;height:11px;background-image:none;
  border-right:2px solid var(--brand-700);border-bottom:2px solid var(--brand-700);
  transform:rotate(45deg);transition:transform .25s var(--ease);
  margin-top:-4px;
}
.accordion-button:not(.collapsed)::after{transform:rotate(-135deg);margin-top:4px;}
.accordion-button:hover{color:var(--brand-500);}
.accordion-button:focus{box-shadow:none;outline:2px solid var(--accent-500);outline-offset:2px;border-radius:6px;}
.accordion-body{padding:0 60px 26px 0;color:var(--text-600);font-size:.9375rem;line-height:1.85;}

/* ============ CTA ============ */
.cta-panel{
  background:var(--brand-900);color:#fff;border-radius:var(--radius-cta);
  padding:48px 44px;display:flex;gap:36px;align-items:center;justify-content:space-between;flex-wrap:wrap;
}
.cta-panel h2{color:#fff;max-width:22ch;}
.cta-panel p{margin-top:14px;color:rgba(255,255,255,.74);font-size:1rem;max-width:52ch;line-height:1.75;}
.cta-actions{display:flex;gap:14px;flex-wrap:wrap;}
.cta-panel .btn-ghost{color:#fff;border-color:rgba(255,255,255,.34);}
.cta-panel .btn-ghost:hover{border-color:#fff;color:#fff;}

/* ============ 页脚 ============ */
.site-footer{margin-left:232px;background:var(--brand-900);color:rgba(255,255,255,.72);border-top:1px solid rgba(255,255,255,.10);}
.foot-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.2fr;gap:40px;padding:64px 0 44px;}
.foot-brand .brand-mark{background:rgba(255,255,255,.10);color:#fff;margin-bottom:14px;}
.foot-brand strong{display:block;color:#fff;font-size:1.0625rem;font-weight:900;margin-bottom:12px;}
.foot-brand p{font-size:.875rem;line-height:1.85;color:rgba(255,255,255,.62);max-width:36ch;}
.foot-title{color:#fff;font-size:.8125rem;font-weight:700;letter-spacing:.04em;margin-bottom:16px;}
.foot-links{display:flex;flex-direction:column;gap:11px;}
.foot-links a{color:rgba(255,255,255,.68);font-size:.875rem;border-bottom:1px solid transparent;padding-bottom:1px;transition:color .2s var(--ease),border-color .2s var(--ease);}
.foot-links a:hover{color:var(--accent-500);border-bottom-color:var(--accent-500);}
.foot-contact p{font-size:.875rem;color:rgba(255,255,255,.68);margin-bottom:10px;}
.foot-contact a{color:rgba(255,255,255,.68);}
.foot-contact a:hover{color:var(--accent-500);text-decoration:underline;}
.foot-bottom{
  display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;
  padding:22px 0 30px;border-top:1px solid rgba(255,255,255,.10);
  font-size:.8125rem;color:rgba(255,255,255,.52);
}

/* ============ 入场动效 ============ */
.reveal{opacity:0;transform:translateY(8px);transition:opacity .48s var(--ease),transform .48s var(--ease);}
.reveal.is-in{opacity:1;transform:none;}
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto;}
  .reveal{opacity:1;transform:none;transition:none;}
  *{transition-duration:.01ms !important;animation-duration:.01ms !important;}
}

/* ============ 响应式 ============ */
@media (max-width:991.98px){
  .sidebar{display:none;}
  .mobile-bar{display:flex;}
  .main,.site-footer{margin-left:0;}
  .shell{padding:0 20px;}
  .section{padding:56px 0;}
  .section-tight{padding:44px 0 56px;}
  .duo-block{grid-template-columns:1fr;gap:24px;padding:34px 0;}
  .duo-block.is-rev .duo-media{order:0;}
  .duo-block .duo-media{order:-1;}
  .filter-right{flex:1 1 100%;border-left:0;border-top:2px solid var(--accent-500);padding-left:0;padding-top:14px;}
  .foot-grid{grid-template-columns:1fr 1fr;gap:32px;padding:48px 0 32px;}
  .cta-panel{padding:36px 28px;border-radius:20px;}
  .faq-wrap{padding:6px 20px;}
  .accordion-button{padding:18px 40px 18px 0;}
  .accordion-body{padding:0 30px 22px 0;}
}
@media (max-width:575.98px){
  h1{font-size:2rem;}
  .metrics{gap:24px;}
  .metrics .m-strong{font-size:1.25rem;}
  .foot-grid{grid-template-columns:1fr;}
  .foot-bottom{flex-direction:column;gap:8px;}
  .btn-brand,.btn-ghost,.btn-accent{width:100%;}
  .hero-actions{flex-direction:column;align-items:stretch;}
  .notice-strip{padding:22px;}
  .accordion-button{font-size:.9375rem;}
}

/* roulang page: category2 */
:root{
  --brand-900:#0B1F19;
  --brand-700:#0F3D33;
  --brand-500:#17604F;
  --accent-500:#FF6B3D;
  --paper:#F7F4EE;
  --surface:#FFFFFF;
  --surface-2:#EFEAE0;
  --line:rgba(11,31,25,.10);
  --text-900:#14181A;
  --text-600:#4A5250;
  --text-400:#8A9391;
  --radius-card:16px;
  --radius-img:12px;
  --radius-btn:10px;
  --radius-cta:24px;
  --rail-w:232px;
  --shadow-hover:0 18px 40px rgba(11,31,25,.08);
  --bs-primary:#0F3D33;
  --bs-body-bg:#F7F4EE;
  --bs-body-color:#14181A;
  --bs-border-color:rgba(11,31,25,.10);
  --bs-link-color:#0F3D33;
  --bs-link-hover-color:#17604F;
  --bs-font-sans-serif:'Noto Sans SC','PingFang SC','Microsoft YaHei',sans-serif;
  --bs-body-font-family:'Noto Sans SC','PingFang SC','Microsoft YaHei',sans-serif;
  --bs-border-radius:10px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  font-family:'Noto Sans SC','PingFang SC','Microsoft YaHei',sans-serif;
  font-size:1.0625rem;
  line-height:1.75;
  color:var(--text-900);
  background:var(--paper);
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{display:block;max-width:100%;height:auto}
a{color:var(--brand-700);text-decoration:none;transition:color .2s ease}
a:hover{color:var(--brand-500)}
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}
.num{font-family:'Inter','DIN Alternate',ui-monospace,monospace;font-variant-numeric:tabular-nums;letter-spacing:0}
.shell{width:100%;max-width:1180px;margin:0 auto;padding:0 32px}

/* ============ 左侧竖向导航 ============ */
.side-rail{
  position:fixed;top:0;left:0;bottom:0;width:var(--rail-w);
  background:var(--surface);
  border-right:1px solid var(--line);
  display:flex;flex-direction:column;
  padding:28px 20px 22px;
  z-index:1030;
  overflow-y:auto;
}
.rail-brand{
  display:flex;align-items:center;gap:10px;
  padding:0 6px 0 4px;
  margin-bottom:30px;
  color:var(--brand-900);
}
.brand-mark{
  width:34px;height:34px;flex:0 0 34px;
  display:inline-flex;align-items:center;justify-content:center;
  border-radius:10px;
  background:var(--brand-700);
  color:#fff;
}
.brand-mark svg{width:19px;height:19px}
.rail-brand strong{font-size:1rem;font-weight:800;letter-spacing:-.01em;line-height:1.25}
.side-menu{display:flex;flex-direction:column;gap:2px}
.side-link{
  position:relative;
  display:flex;align-items:center;
  height:44px;padding:0 14px;
  border-radius:10px;
  font-size:.9375rem;font-weight:600;
  color:var(--text-600);
  transition:background .2s ease,color .2s ease;
}
.side-link:hover{background:var(--surface-2);color:var(--brand-700)}
.side-link.is-active{background:rgba(23,96,79,.09);color:var(--brand-700)}
.side-link.is-active::before{
  content:"";position:absolute;left:0;top:50%;
  width:3px;height:22px;margin-top:-11px;
  border-radius:2px;background:var(--accent-500);
}
.rail-foot{margin-top:auto;padding:20px 6px 0;border-top:1px solid var(--line)}
.rail-foot-title{font-size:.75rem;font-weight:700;letter-spacing:.08em;color:var(--text-400);margin-bottom:10px}
.rail-foot p{font-size:.8125rem;line-height:1.7;color:var(--text-600);margin-bottom:4px;word-break:break-all}

/* ============ 移动端顶栏 ============ */
.topbar{display:none}
@media (max-width:991.98px){
  .side-rail{display:none}
  .topbar{
    display:block;position:sticky;top:0;z-index:1035;
    height:60px;background:var(--paper);
    border-bottom:1px solid var(--line);
    transition:box-shadow .25s ease;
  }
  .topbar.is-scrolled{box-shadow:0 8px 20px rgba(11,31,25,.06)}
}
.topbar-inner{
  max-width:1180px;margin:0 auto;padding:0 20px;
  height:60px;display:flex;align-items:center;justify-content:space-between;
}
.topbar-brand{font-size:1rem;font-weight:800;color:var(--brand-900);letter-spacing:-.01em}
.burger{
  width:44px;height:44px;border:0;background:transparent;
  display:inline-flex;flex-direction:column;align-items:center;justify-content:center;gap:5px;
  cursor:pointer;border-radius:10px;
}
.burger span{display:block;width:20px;height:2px;border-radius:2px;background:var(--brand-900);transition:transform .2s ease}
.burger:hover span{background:var(--brand-500)}
.mobile-nav{background:var(--surface);width:280px !important;border-right:1px solid var(--line)}
.mobile-nav .offcanvas-header{padding:20px 20px 12px;border-bottom:1px solid var(--line)}
.mobile-nav .offcanvas-title{font-size:1rem;font-weight:800;color:var(--brand-900)}
.mobile-nav .btn-close{opacity:.5}
.mobile-nav .btn-close:hover{opacity:1}
.mobile-nav .offcanvas-body{padding:18px 20px 28px}
.mobile-nav .side-menu{margin-bottom:26px}
.mobile-nav .rail-foot{margin-top:24px}

/* ============ 页面主体容器 ============ */
.page{margin-left:var(--rail-w)}
@media (max-width:991.98px){.page{margin-left:0}}

/* ============ 面包屑 ============ */
.crumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:.875rem;color:rgba(255,255,255,.7)}
.crumb a{color:rgba(255,255,255,.85)}
.crumb a:hover{color:#fff;text-decoration:underline}
.crumb .sep{opacity:.45}

/* ============ Hero ============ */
.page-hero{position:relative;overflow:hidden;background:var(--brand-900);color:#fff;isolation:isolate}
.hero-bg{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;opacity:.46;z-index:-2}
.hero-veil{
  position:absolute;inset:0;z-index:-1;
  background:linear-gradient(100deg,rgba(11,31,25,.95) 0%,rgba(11,31,25,.78) 46%,rgba(11,31,25,.36) 100%);
}
.hero-inner{padding:64px 0 60px}
.hero-badge{
  display:inline-flex;align-items:center;height:30px;padding:0 14px;
  margin:20px 0 18px;
  border:1px solid rgba(255,255,255,.28);
  border-radius:999px;
  font-size:.75rem;font-weight:600;letter-spacing:.04em;
  color:rgba(255,255,255,.92);
  background:rgba(255,255,255,.06);
}
.page-hero h1{
  font-size:clamp(2.25rem,5vw,3.75rem);
  font-weight:900;line-height:1.12;letter-spacing:-.02em;
  color:#fff;max-width:16em;
}
.hero-sub{
  margin-top:18px;max-width:36em;
  font-size:1.0625rem;line-height:1.75;
  color:rgba(255,255,255,.82);
}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:32px}
.hero-stats{
  display:grid;grid-template-columns:repeat(4,minmax(0,1fr));
  margin-top:46px;border-top:1px solid rgba(255,255,255,.18);
}
.stat{padding:22px 24px 0 0}
.stat + .stat{border-left:1px solid rgba(255,255,255,.18);padding-left:24px}
.stat b{
  display:block;
  font-family:'Inter','DIN Alternate',ui-monospace,monospace;
  font-variant-numeric:tabular-nums;
  font-size:1.75rem;font-weight:800;line-height:1.2;color:#fff;
}
.stat span{display:block;margin-top:6px;font-size:.875rem;color:rgba(255,255,255,.68)}

/* ============ 按钮 ============ */
.btn-main,.btn-line,.btn-light-solid,.btn-accent{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:44px;padding:0 22px;
  border-radius:var(--radius-btn);
  font-size:.9375rem;font-weight:600;
  border:1px solid transparent;
  cursor:pointer;
  transition:background .22s ease,color .22s ease,border-color .22s ease,transform .22s ease,box-shadow .22s ease;
}
.btn-main{background:var(--brand-700);border-color:var(--brand-700);color:#fff}
.btn-main:hover{background:var(--brand-500);border-color:var(--brand-500);color:#fff;transform:translateY(-2px);box-shadow:0 12px 26px rgba(11,31,25,.18)}
.btn-main:active{transform:translateY(0);box-shadow:none}
.btn-line{background:transparent;border-color:var(--line);color:var(--brand-700)}
.btn-line:hover{border-color:var(--brand-500);color:var(--brand-500);transform:translateY(-2px)}
.btn-light-solid{background:#fff;border-color:#fff;color:var(--brand-900)}
.btn-light-solid:hover{background:var(--paper);border-color:var(--paper);color:var(--brand-900);transform:translateY(-2px);box-shadow:0 12px 26px rgba(0,0,0,.22)}
.btn-accent{background:var(--accent-500);border-color:var(--accent-500);color:#fff}
.btn-accent:hover{background:#f2592a;border-color:#f2592a;color:#fff;transform:translateY(-2px);box-shadow:0 14px 28px rgba(255,107,61,.28)}
.btn-accent:active{transform:translateY(0);box-shadow:none}
.btn-on-dark-line{background:rgba(255,255,255,.04);border-color:rgba(255,255,255,.42);color:#fff}
.btn-on-dark-line:hover{background:#fff;border-color:#fff;color:var(--brand-900);transform:translateY(-2px)}

/* ============ 通用板块 ============ */
.section{padding:80px 0}
.section-alt{background:var(--surface-2)}
.section-head{max-width:46em;margin-bottom:40px}
.section-head h2{
  font-size:clamp(1.625rem,3vw,2.375rem);
  font-weight:800;line-height:1.2;letter-spacing:-.015em;color:var(--brand-900);
}
.section-head p{margin-top:16px;color:var(--text-600);font-size:1rem}
.eyebrow{
  display:inline-flex;align-items:center;height:28px;padding:0 12px;margin-bottom:14px;
  border:1px solid var(--line);border-radius:999px;
  background:var(--surface);color:var(--brand-700);
  font-size:.75rem;font-weight:700;letter-spacing:.04em;
}
.section-alt .eyebrow{background:var(--paper)}

/* ============ 目录 + 条目列表 ============ */
.zone-layout{display:grid;grid-template-columns:240px minmax(0,1fr);gap:48px;align-items:start}
.zone-toc{position:sticky;top:36px;padding-right:24px;border-right:1px solid var(--line)}
.toc-title{font-size:.75rem;font-weight:700;letter-spacing:.08em;color:var(--text-400);margin-bottom:14px}
.toc-list{display:flex;flex-direction:column}
.toc-link{
  position:relative;
  display:flex;align-items:center;gap:10px;
  min-height:40px;padding:6px 12px 6px 14px;
  border-radius:8px;
  font-size:.9375rem;font-weight:600;color:var(--text-600);
  transition:background .2s ease,color .2s ease,padding-left .2s ease;
}
.toc-link .num{font-size:.75rem;color:var(--text-400)}
.toc-link:hover{background:var(--surface);color:var(--brand-700)}
.toc-link.is-active{color:var(--brand-700);background:rgba(23,96,79,.07)}
.toc-link.is-active .num{color:var(--accent-500)}
.toc-link.is-active::before{
  content:"";position:absolute;left:0;top:50%;
  width:3px;height:18px;margin-top:-9px;
  border-radius:2px;background:var(--accent-500);
}
.toc-note{margin-top:18px;padding-top:16px;border-top:1px solid var(--line);font-size:.8125rem;color:var(--text-400);line-height:1.7}

.toc-mobile{display:none}
.toc-toggle{
  width:100%;min-height:48px;padding:0 16px;
  display:flex;align-items:center;justify-content:space-between;
  background:var(--surface);border:1px solid var(--line);border-radius:12px;
  font-size:.9375rem;font-weight:700;color:var(--brand-900);
  cursor:pointer;transition:border-color .2s ease,color .2s ease;
}
.toc-toggle:hover{border-color:var(--brand-500);color:var(--brand-700)}
.toc-toggle svg{width:16px;height:16px;transition:transform .25s ease}
.toc-toggle[aria-expanded="true"] svg{transform:rotate(180deg)}
.toc-list-mobile{margin-top:10px;padding:8px;background:var(--surface);border:1px solid var(--line);border-radius:12px}

.zone-list{border-top:1px solid var(--line)}
.zone-item{padding:34px 0;border-bottom:1px solid var(--line);scroll-margin-top:80px}
.item-head{display:flex;align-items:baseline;gap:16px}
.item-no{
  flex:0 0 auto;
  font-family:'Inter','DIN Alternate',ui-monospace,monospace;
  font-variant-numeric:tabular-nums;
  font-size:.875rem;font-weight:700;color:var(--accent-500);letter-spacing:.06em;
}
.zone-item h3{font-size:1.1875rem;font-weight:700;line-height:1.4;color:var(--brand-900)}
.item-desc{margin-top:14px;color:var(--text-600);font-size:1.0625rem;line-height:1.8}
.item-tags{display:flex;flex-wrap:wrap;gap:8px;margin-top:16px}
.tag{
  display:inline-flex;align-items:center;height:28px;padding:0 12px;
  border:1px solid var(--line);border-radius:999px;
  background:var(--paper);color:var(--brand-700);
  font-size:.75rem;font-weight:600;letter-spacing:.04em;
}
.item-link{
  display:inline-flex;align-items:center;gap:6px;
  margin-top:16px;font-size:.875rem;font-weight:600;color:var(--brand-700);
  border-bottom:1px solid transparent;
  transition:border-color .2s ease,color .2s ease;
}
.item-link svg{width:14px;height:14px;transition:transform .2s ease}
.item-link:hover{border-bottom-color:var(--brand-500);color:var(--brand-500)}
.item-link:hover svg{transform:translateX(4px)}
.zone-figure{margin:0;padding:34px 0;border-bottom:1px solid var(--line)}
.zone-figure img{width:100%;border-radius:var(--radius-img);border:1px solid var(--line)}
.zone-figure figcaption{margin-top:12px;font-size:.8125rem;color:var(--text-400);text-align:center}

/* ============ 三项核对 ============ */
.check-row{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:0}
.check-col{padding:0 32px;border-left:1px solid var(--line)}
.check-col:first-child{padding-left:0;border-left:0}
.check-col:last-child{padding-right:0}
.check-no{
  display:block;
  font-family:'Inter','DIN Alternate',ui-monospace,monospace;
  font-variant-numeric:tabular-nums;
  font-size:.8125rem;font-weight:700;letter-spacing:.06em;color:var(--accent-500);
}
.check-col h3{margin-top:10px;font-size:1.1875rem;font-weight:700;color:var(--brand-900)}
.check-col p{margin-top:12px;color:var(--text-600);font-size:1rem;line-height:1.8}

/* ============ FAQ ============ */
.faq{
  --bs-accordion-border-width:0;
  --bs-accordion-border-radius:0;
  --bs-accordion-inner-border-radius:0;
  --bs-accordion-bg:transparent;
  --bs-accordion-btn-bg:transparent;
  --bs-accordion-active-bg:transparent;
  --bs-accordion-btn-color:var(--text-900);
  --bs-accordion-active-color:var(--brand-700);
  --bs-accordion-btn-focus-box-shadow:none;
  --bs-accordion-btn-icon:none;
  --bs-accordion-btn-active-icon:none;
  border-top:1px solid var(--line);
  max-width:900px;
}
.faq .accordion-item{border:0;border-bottom:1px solid var(--line);background:transparent}
.faq .accordion-header{margin:0;font-size:1.0625rem}
.faq .accordion-button{
  position:relative;
  padding:22px 44px 22px 20px;
  font-size:1.0625rem;font-weight:700;line-height:1.55;
  color:var(--text-900);background:transparent;border-radius:0;
  box-shadow:none;
}
.faq .accordion-button::before{
  content:"";position:absolute;left:0;top:50%;
  width:8px;height:8px;margin-top:-4px;border-radius:2px;
  background:var(--accent-500);
  opacity:0;transform:scale(.4);
  transition:opacity .2s ease,transform .2s ease;
}
.faq .accordion-button::after{
  content:"";position:absolute;right:10px;top:50%;
  width:11px;height:11px;margin-top:-7px;
  background-image:none;
  border-right:2px solid var(--text-400);
  border-bottom:2px solid var(--text-400);
  border-radius:1px;
  transform:rotate(45deg);
  transition:transform .25s ease,border-color .25s ease;
}
.faq .accordion-button:not(.collapsed){color:var(--brand-700);background:transparent;box-shadow:none}
.faq .accordion-button:not(.collapsed)::before{opacity:1;transform:scale(1)}
.faq .accordion-button:not(.collapsed)::after{transform:rotate(-135deg);border-color:var(--brand-700)}
.faq .accordion-button:hover{color:var(--brand-500)}
.faq .accordion-button:focus{box-shadow:none;outline:none}
.faq .accordion-button:focus-visible{outline:2px solid var(--accent-500);outline-offset:-2px}
.faq .accordion-body{padding:0 44px 26px 20px;color:var(--text-600);font-size:1rem;line-height:1.85}

/* ============ CTA ============ */
.cta-wrap{padding:0 0 80px}
.cta-panel{
  position:relative;overflow:hidden;
  background:var(--brand-900);
  border-radius:var(--radius-cta);
  padding:56px 56px 54px;
  color:#fff;
}
.cta-panel::after{
  content:"";position:absolute;right:-80px;top:-80px;width:320px;height:320px;
  border-radius:50%;background:rgba(23,96,79,.45);filter:blur(10px);
}
.cta-panel h2{
  position:relative;z-index:1;
  font-size:clamp(1.625rem,3vw,2.25rem);font-weight:800;line-height:1.22;letter-spacing:-.015em;
}
.cta-panel p{position:relative;z-index:1;margin-top:16px;max-width:38em;color:rgba(255,255,255,.76);font-size:1rem}
.cta-panel .cta-actions{position:relative;z-index:1;display:flex;flex-wrap:wrap;gap:14px;margin-top:30px}

/* ============ 页脚 ============ */
.site-footer{background:var(--brand-900);color:rgba(255,255,255,.72);border-top:1px solid rgba(255,255,255,.12)}
.site-footer .shell{padding-top:64px;padding-bottom:28px}
.foot-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:40px}
.foot-brand strong{display:block;margin:14px 0 12px;font-size:1.0625rem;font-weight:800;color:#fff}
.foot-brand p{font-size:.875rem;line-height:1.8;max-width:30em}
.site-footer .brand-mark{background:var(--brand-700);color:#fff}
.foot-title{font-size:.75rem;font-weight:700;letter-spacing:.08em;color:rgba(255,255,255,.5);margin-bottom:14px}
.foot-links{display:flex;flex-direction:column;gap:10px}
.foot-links a{
  font-size:.875rem;color:rgba(255,255,255,.78);
  border-bottom:1px solid transparent;width:fit-content;
  transition:color .2s ease,border-color .2s ease;
}
.foot-links a:hover{color:var(--accent-500);border-bottom-color:var(--accent-500)}
.foot-contact p{font-size:.875rem;line-height:1.9;word-break:break-all}
.foot-bottom{
  margin-top:48px;padding-top:22px;
  border-top:1px solid rgba(255,255,255,.12);
  display:flex;flex-wrap:wrap;gap:10px;justify-content:space-between;
  font-size:.8125rem;color:rgba(255,255,255,.5);
}

/* ============ 动效 ============ */
.reveal{opacity:0;transform:translateY(8px);transition:opacity .48s cubic-bezier(.22,.61,.36,1),transform .48s cubic-bezier(.22,.61,.36,1)}
.reveal.in{opacity:1;transform:none}

/* ============ 响应式 ============ */
@media (max-width:1199.98px){
  .zone-layout{grid-template-columns:210px minmax(0,1fr);gap:36px}
}
@media (max-width:991.98px){
  .shell{padding:0 20px}
  .section{padding:56px 0}
  .section-head{margin-bottom:32px}
  .zone-layout{grid-template-columns:1fr;gap:28px}
  .zone-toc{display:none}
  .toc-mobile{display:block;margin-bottom:28px}
  .hero-inner{padding:44px 0 48px}
  .hero-stats{grid-template-columns:repeat(2,minmax(0,1fr));margin-top:36px}
  .stat{padding:18px 16px 0 0}
  .stat + .stat{border-left:0;padding-left:0}
  .stat:nth-child(even){padding-left:18px;border-left:1px solid rgba(255,255,255,.18)}
  .check-row{grid-template-columns:1fr;gap:28px}
  .check-col{padding:0;border-left:0;border-top:1px solid var(--line);padding-top:24px}
  .check-col:first-child{border-top:0;padding-top:0}
  .cta-panel{padding:40px 28px}
  .cta-wrap{padding-bottom:56px}
  .foot-grid{grid-template-columns:1fr 1fr;gap:32px}
  .foot-brand{grid-column:1 / -1}
}
@media (max-width:575.98px){
  body{font-size:1rem}
  .shell{padding:0 16px}
  .topbar-inner{padding:0 16px}
  .hero-stats{grid-template-columns:1fr;margin-top:30px}
  .stat{padding:16px 0 0}
  .stat + .stat{padding-left:0;border-top:1px solid rgba(255,255,255,.18)}
  .stat:nth-child(even){padding-left:0;border-left:0}
  .hero-actions .btn-main,.hero-actions .btn-on-dark-line{width:100%}
  .foot-grid{grid-template-columns:1fr}
  .foot-bottom{flex-direction:column;gap:6px}
  .zone-item{padding:26px 0}
  .item-head{gap:12px}
  .faq .accordion-button{padding:18px 38px 18px 18px;font-size:1rem}
  .faq .accordion-body{padding:0 38px 22px 18px}
}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{
    animation-duration:.001ms !important;
    animation-iteration-count:1 !important;
    transition-duration:.001ms !important;
    scroll-behavior:auto !important;
  }
  .reveal{opacity:1;transform:none}
}