/* roulang page: index */
:root{
  --ink:#114B43;
  --ink-2:#1E6A5E;
  --ink-tint:#E7EFEB;
  --accent:#C4622E;
  --accent-dark:#A44E1F;
  --bg:#F7F5F0;
  --surface:#FFFFFF;
  --dark:#12211E;
  --text:#232826;
  --muted:#5C6660;
  --line:#E4E1D8;
  --line-weak:#EFEDE7;
  --ok:#2F7A5A;
  --warn:#8A6A1F;
  --err:#B3402C;
  --r-xs:10px;
  --r-sm:12px;
  --r:16px;
  --r-lg:20px;
  --r-pill:999px;
  --sd-1:0 1px 2px rgba(18,33,30,.04),0 14px 34px -14px rgba(18,33,30,.14);
  --sd-2:0 2px 4px rgba(18,33,30,.06),0 22px 46px -18px rgba(18,33,30,.20);
  --ease:cubic-bezier(.22,.61,.36,1);
  --font-sans:"PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
  --font-serif:"Noto Serif SC","Songti SC","SimSun",Georgia,serif;
  --bs-primary:#114B43;
  --bs-body-color:#232826;
  --bs-body-bg:#F7F5F0;
  --bs-border-color:#E4E1D8;
  --bs-link-color:#114B43;
  --bs-link-hover-color:#C4622E;
  --bs-font-sans-serif:var(--font-sans);
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:var(--font-sans);
  font-size:16px;
  line-height:1.85;
  color:var(--text);
  background-color:var(--bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;height:auto;display:block;}
a{color:var(--ink);text-decoration:none;transition:color .2s var(--ease);}
a:hover{color:var(--accent);}
button,input,select,textarea{font-family:inherit;font-size:inherit;}
h1,h2,h3,h4{font-family:var(--font-serif);color:var(--text);margin:0;letter-spacing:-0.01em;}
p{margin:0 0 1em;}
ul{margin:0;padding:0;list-style:none;}
:focus-visible{outline:2px solid var(--accent);outline-offset:2px;}
.container{width:100%;max-width:1240px;margin:0 auto;padding-left:32px;padding-right:32px;}
.tnum{font-variant-numeric:tabular-nums;font-feature-settings:"tnum";}

/* ============ 通用按钮 ============ */
.btn{
  --bs-btn-focus-box-shadow:0 0 0 3px rgba(196,98,46,.28);
  border-radius:var(--r-xs);
  font-weight:600;
  font-size:15px;
  letter-spacing:.01em;
  transition:background-color .2s var(--ease),color .2s var(--ease),border-color .2s var(--ease),transform .2s var(--ease),box-shadow .2s var(--ease);
}
.btn-primary{
  --bs-btn-bg:var(--accent);
  --bs-btn-border-color:var(--accent);
  --bs-btn-hover-bg:var(--accent-dark);
  --bs-btn-hover-border-color:var(--accent-dark);
  --bs-btn-active-bg:var(--accent-dark);
  --bs-btn-active-border-color:var(--accent-dark);
  --bs-btn-color:#fff;
  --bs-btn-hover-color:#fff;
  --bs-btn-active-color:#fff;
  background-color:var(--accent);
  border-color:var(--accent);
  color:#fff;
  box-shadow:0 10px 22px -14px rgba(164,78,31,.9);
}
.btn-primary:hover{transform:translateY(-1px);color:#fff;}
.btn-primary:hover .btn-arrow{transform:translateX(4px);}
.btn-outline-primary{
  --bs-btn-color:var(--ink);
  --bs-btn-border-color:var(--ink);
  --bs-btn-hover-bg:var(--ink-tint);
  --bs-btn-hover-color:var(--ink);
  --bs-btn-hover-border-color:var(--ink);
  --bs-btn-active-bg:var(--ink-tint);
  --bs-btn-active-color:var(--ink);
  --bs-btn-active-border-color:var(--ink);
  background:#fff;
  color:var(--ink);
  border:1.5px solid var(--ink);
}
.btn-outline-primary:hover{background:var(--ink-tint);color:var(--ink);transform:translateY(-1px);}
.btn-lg{height:52px;padding:0 26px;font-size:16px;line-height:50px;border-radius:var(--r-xs);}
.btn-sm{height:44px;padding:0 20px;font-size:14px;line-height:42px;}
.btn-arrow{display:inline-block;margin-left:8px;transition:transform .22s var(--ease);}
.btn-link-plain{
  display:inline-flex;align-items:center;gap:6px;
  color:var(--ink);font-weight:600;font-size:15px;
  text-decoration:underline;text-underline-offset:3px;text-decoration-thickness:1px;
}
.btn-link-plain:hover{color:var(--accent);}

/* ============ 顶部导航 ============ */
.site-header{
  position:sticky;top:0;z-index:1040;
  padding-top:16px;
  transition:padding .28s var(--ease);
}
.site-header.scrolled{padding-top:8px;}
.nav-panel{
  display:flex;align-items:center;gap:20px;
  background:rgba(255,255,255,.96);
  border:1px solid var(--line);
  border-radius:var(--r-lg);
  box-shadow:var(--sd-1);
  padding:12px 16px;
  transition:box-shadow .28s var(--ease),padding .28s var(--ease),background-color .28s var(--ease);
}
.site-header.scrolled .nav-panel{
  padding:8px 16px;
  box-shadow:var(--sd-2);
  background:rgba(255,255,255,.92);
  backdrop-filter:blur(10px);
}
.brand{display:flex;align-items:center;gap:10px;flex:0 0 auto;}
.brand-mark{
  width:40px;height:40px;flex:0 0 40px;
  display:flex;align-items:center;justify-content:center;
  background:linear-gradient(150deg,var(--ink) 0%,var(--ink-2) 100%);
  color:#fff;border-radius:12px;
  font-family:var(--font-serif);font-size:20px;font-weight:800;
}
.brand-text{display:flex;flex-direction:column;line-height:1.15;}
.brand-name{font-family:var(--font-serif);font-size:17px;font-weight:800;color:var(--text);letter-spacing:.01em;}
.brand-sub{font-size:11px;letter-spacing:.14em;color:var(--muted);}
.nav-links{display:flex;align-items:center;gap:8px;margin-left:auto;}
.nav-chip{
  display:inline-flex;align-items:center;gap:8px;
  height:44px;padding:0 16px;
  border:1px solid var(--line-weak);
  border-radius:12px;
  background:#fff;
  color:var(--muted);
  font-size:14px;font-weight:600;
  transition:all .2s var(--ease);
}
.nav-chip i{font-size:13px;color:var(--ink-2);transition:color .2s var(--ease);}
.nav-chip:hover{border-color:rgba(17,75,67,.28);color:var(--ink);transform:translateY(-1px);box-shadow:var(--sd-1);}
.nav-chip.active{background:var(--ink);border-color:var(--ink);color:#fff;box-shadow:0 10px 20px -12px rgba(17,75,67,.9);}
.nav-chip.active i{color:rgba(255,255,255,.85);}
.nav-actions{display:flex;align-items:center;gap:10px;flex:0 0 auto;}
.nav-actions .btn{height:44px;line-height:42px;padding:0 20px;font-size:14px;}
.nav-toggle{
  display:inline-flex;align-items:center;justify-content:center;
  width:44px;height:44px;border-radius:12px;
  border:1px solid var(--line);background:#fff;color:var(--ink);font-size:16px;
}
.nav-toggle:hover{background:var(--ink-tint);}

/* 移动端抽屉 */
.offcanvas.mobile-nav{
  background:#fff;
  border-radius:var(--r-lg) 0 0 var(--r-lg);
  width:min(88vw,380px);
}
.mobile-nav .offcanvas-header{border-bottom:1px solid var(--line-weak);padding:18px 20px;}
.mobile-nav .offcanvas-title{font-family:var(--font-serif);font-weight:800;font-size:17px;color:var(--text);}
.mobile-nav .btn-close{--bs-btn-close-focus-shadow:0 0 0 3px rgba(196,98,46,.25);opacity:.6;}
.mobile-nav .offcanvas-body{padding:20px;}
.mobile-grid{display:grid;grid-template-columns:1fr 1fr;gap:12px;margin-bottom:20px;}
.mobile-chip{
  display:flex;flex-direction:column;gap:8px;
  padding:16px 14px;min-height:96px;
  border:1px solid var(--line);border-radius:var(--r-sm);
  background:#fff;color:var(--text);font-size:14px;font-weight:600;
}
.mobile-chip i{font-size:16px;color:var(--ink-2);}
.mobile-chip.active{background:var(--ink);border-color:var(--ink);color:#fff;}
.mobile-chip.active i{color:rgba(255,255,255,.85);}

/* ============ Hero ============ */
.hero{position:relative;padding:80px 0 88px;overflow:hidden;}
.hero-bg{
  position:absolute;inset:0;
  background:url(/assets/images/backpic/back-1.png) center/cover no-repeat;
  opacity:.14;
  pointer-events:none;
}
.hero::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(247,245,240,.5) 0%,rgba(247,245,240,.92) 100%);
  pointer-events:none;
}
.hero .container{position:relative;z-index:2;}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  background:var(--ink-tint);color:var(--ink);
  border-radius:var(--r-pill);
  padding:7px 16px;font-size:12px;letter-spacing:.08em;font-weight:600;
  margin-bottom:22px;
}
.eyebrow::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--accent);}
.hero h1{
  font-size:clamp(34px,5vw,60px);
  font-weight:900;
  line-height:1.12;
  letter-spacing:-0.02em;
  margin-bottom:18px;
}
.hero h1 em{font-style:normal;color:var(--ink);}
.hero-sub{
  font-size:clamp(16px,1.6vw,19px);
  color:var(--muted);
  line-height:1.75;
  max-width:520px;
  margin-bottom:30px;
}
.btn-row{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:46px;}
.metrics{
  display:grid;grid-template-columns:repeat(4,minmax(0,1fr));
  gap:8px;
  border-top:1px solid var(--line);
  padding-top:26px;
}
.metric-num{
  font-size:clamp(26px,3vw,34px);font-weight:800;color:var(--ink);line-height:1.15;
}
.metric-num span{font-size:.55em;color:var(--ink-2);margin-left:2px;}
.metric-label{font-size:13px;color:var(--muted);margin-top:4px;line-height:1.5;}

.channel-card{
  background:#fff;
  border:1px solid var(--line);
  border-radius:var(--r-lg);
  box-shadow:var(--sd-2);
  padding:26px;
  position:relative;
}
.status-badge{
  display:inline-flex;align-items:center;gap:7px;
  background:rgba(47,122,90,.1);color:var(--ok);
  border-radius:var(--r-pill);
  padding:6px 14px;font-size:12px;font-weight:700;letter-spacing:.06em;
}
.status-badge::before{content:"";width:7px;height:7px;border-radius:50%;background:var(--ok);}
.channel-title{
  font-family:var(--font-serif);font-size:20px;font-weight:700;color:var(--text);
  margin:18px 0 6px;
}
.channel-note{font-size:14px;color:var(--muted);margin-bottom:20px;line-height:1.7;}
.channel-rows{border-top:1px solid var(--line-weak);}
.channel-row{
  display:flex;align-items:center;justify-content:space-between;gap:12px;
  padding:13px 0;border-bottom:1px solid var(--line-weak);font-size:14px;
}
.channel-row .k{color:var(--muted);}
.channel-row .v{color:var(--text);font-weight:700;}
.channel-foot{
  margin-top:22px;display:flex;align-items:center;gap:12px;justify-content:space-between;
}
.channel-foot .tip{font-size:12px;color:var(--muted);line-height:1.5;}

/* ============ 板块通用 ============ */
.section{padding:104px 0;}
.section.alt{background:#fff;border-top:1px solid var(--line-weak);border-bottom:1px solid var(--line-weak);}
.section-head{margin-bottom:52px;max-width:720px;}
.section-head.between{
  display:flex;align-items:flex-end;justify-content:space-between;gap:24px;
  max-width:none;flex-wrap:wrap;
}
.section-tag{
  display:inline-block;font-size:12px;letter-spacing:.14em;font-weight:700;
  color:var(--ink-2);margin-bottom:14px;
}
.section-title{
  font-size:clamp(26px,3vw,40px);font-weight:800;line-height:1.2;margin-bottom:14px;
}
.section-desc{color:var(--muted);font-size:16px;line-height:1.8;margin:0;}

/* 能力卡片 */
.cap-grid{display:grid;grid-template-columns:5fr 7fr;gap:24px;}
.cap-lead{
  background:var(--dark);color:#fff;border-radius:var(--r-lg);
  padding:38px 34px;position:relative;overflow:hidden;
  display:flex;flex-direction:column;justify-content:space-between;
  min-height:340px;
}
.cap-lead::before{
  content:"";position:absolute;inset:0;
  background:url(/assets/images/backpic/back-3.webp) center/cover no-repeat;
  opacity:.16;
}
.cap-lead > *{position:relative;z-index:1;}
.cap-lead h3{color:#fff;font-size:26px;font-weight:800;margin-bottom:14px;line-height:1.3;}
.cap-lead p{color:rgba(255,255,255,.76);font-size:15px;line-height:1.85;margin:0;}
.cap-lead .cap-stats{display:flex;gap:34px;margin-top:28px;flex-wrap:wrap;}
.cap-lead .cap-stats .n{font-size:30px;font-weight:800;color:#fff;}
.cap-lead .cap-stats .t{font-size:12px;color:rgba(255,255,255,.6);letter-spacing:.06em;}
.cap-list{display:grid;grid-template-columns:1fr 1fr;gap:24px;}
.cap-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--r);
  padding:26px 24px;
  box-shadow:var(--sd-1);
  transition:transform .2s var(--ease),box-shadow .2s var(--ease),border-color .2s var(--ease);
}
.cap-card:hover{transform:translateY(-2px);box-shadow:var(--sd-2);border-color:rgba(17,75,67,.22);}
.cap-icon{
  width:46px;height:46px;border-radius:12px;background:var(--ink-tint);
  display:flex;align-items:center;justify-content:center;
  color:var(--ink);font-size:18px;margin-bottom:18px;
}
.cap-card h3{font-size:19px;font-weight:700;margin-bottom:10px;line-height:1.35;}
.cap-card p{font-size:14px;color:var(--muted);line-height:1.8;margin:0;}
.cap-card .cap-list-inline{margin-top:14px;display:flex;flex-wrap:wrap;gap:8px;}
.tag-pill{
  display:inline-block;background:var(--ink-tint);color:var(--ink);
  border-radius:var(--r-pill);padding:5px 12px;font-size:12px;letter-spacing:.06em;font-weight:600;
}

/* 三步上手 */
.steps{display:flex;gap:24px;align-items:stretch;position:relative;}
.step-card{
  position:relative;
  background:#fff;border:1px solid var(--line);border-radius:var(--r);
  padding:32px 28px;box-shadow:var(--sd-1);
  transition:transform .2s var(--ease),box-shadow .2s var(--ease);
}
.step-card:hover{transform:translateY(-2px);box-shadow:var(--sd-2);}
.step-card:nth-child(1){flex:5;}
.step-card:nth-child(2){flex:3.5;}
.step-card:nth-child(3){flex:3.5;}
.step-card::after{
  content:"";position:absolute;top:44px;right:-13px;width:2px;height:calc(100% - 88px);
  background:var(--line-weak);z-index:0;
}
.step-card:last-child::after{display:none;}
.step-num{
  font-size:44px;font-weight:800;line-height:1;
  color:rgba(17,75,67,.25);
  font-variant-numeric:tabular-nums;
  margin-bottom:20px;
}
.step-card h3{font-size:18px;font-weight:700;margin-bottom:12px;}
.step-card p{font-size:15px;color:var(--muted);line-height:1.8;margin:0;}
.step-card .step-meta{
  margin-top:20px;padding-top:16px;border-top:1px dashed var(--line);
  font-size:13px;color:var(--warn);
}

/* 案例 */
.case-grid{display:grid;grid-template-columns:7fr 5fr;gap:24px;}
.case-hero{
  position:relative;border-radius:var(--r-lg);overflow:hidden;
  min-height:420px;display:flex;align-items:flex-end;
  box-shadow:var(--sd-2);
}
.case-hero img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;}
.case-hero .mask{
  position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(18,33,30,0) 22%,rgba(18,33,30,.82) 100%);
}
.case-hero .inner{position:relative;z-index:2;padding:36px;color:#fff;}
.case-badge{
  display:inline-block;background:rgba(255,255,255,.14);backdrop-filter:blur(4px);
  color:#fff;border-radius:var(--r-pill);padding:6px 14px;
  font-size:12px;letter-spacing:.08em;font-weight:600;margin-bottom:16px;
}
.case-hero h3{color:#fff;font-size:24px;font-weight:800;line-height:1.35;margin-bottom:12px;}
.case-hero p{color:rgba(255,255,255,.78);font-size:15px;line-height:1.8;margin:0;}
.case-corner{
  position:absolute;top:24px;right:24px;z-index:3;
  background:#fff;border-radius:var(--r-sm);padding:14px 18px;text-align:center;
  box-shadow:var(--sd-1);
}
.case-corner .n{font-size:26px;font-weight:800;color:var(--accent);line-height:1.1;}
.case-corner .t{font-size:12px;color:var(--muted);margin-top:2px;}
.case-side{display:flex;flex-direction:column;gap:24px;}
.case-side-card{
  flex:1;background:#fff;border:1px solid var(--line);border-radius:var(--r);
  padding:28px 26px;box-shadow:var(--sd-1);
  display:flex;flex-direction:column;justify-content:space-between;
  transition:transform .2s var(--ease),box-shadow .2s var(--ease),border-color .2s var(--ease);
}
.case-side-card:hover{transform:translateY(-2px);box-shadow:var(--sd-2);border-color:rgba(17,75,67,.22);}
.case-side-card .k{font-size:12px;letter-spacing:.1em;color:var(--ink-2);font-weight:700;margin-bottom:12px;}
.case-side-card h3{font-size:18px;font-weight:700;line-height:1.4;margin-bottom:10px;}
.case-side-card p{font-size:14px;color:var(--muted);line-height:1.8;margin:0;}
.case-side-card .res{
  margin-top:18px;padding-top:16px;border-top:1px solid var(--line-weak);
  display:flex;align-items:baseline;gap:10px;
}
.case-side-card .res .n{font-size:28px;font-weight:800;color:var(--ink);line-height:1;}
.case-side-card .res .t{font-size:13px;color:var(--muted);}

/* 资讯列表 */
.news-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px;min-height:220px;}
.news-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--r);overflow:hidden;
  box-shadow:var(--sd-1);display:flex;flex-direction:column;
  transition:transform .2s var(--ease),box-shadow .2s var(--ease),border-color .2s var(--ease);
}
.news-card:hover{transform:translateY(-2px);box-shadow:var(--sd-2);border-color:rgba(17,75,67,.22);}
.news-cover{position:relative;aspect-ratio:16/9;overflow:hidden;background:var(--ink-tint);}
.news-cover img{width:100%;height:100%;object-fit:cover;transition:transform .4s var(--ease);}
.news-card:hover .news-cover img{transform:scale(1.03);}
.news-body{padding:22px 22px 24px;display:flex;flex-direction:column;flex:1;}
.news-tag{
  align-self:flex-start;background:var(--ink-tint);color:var(--ink);
  border-radius:var(--r-pill);padding:4px 12px;font-size:12px;font-weight:600;letter-spacing:.06em;
  margin-bottom:14px;
}
.news-title{
  font-size:19px;font-weight:700;line-height:1.45;margin-bottom:10px;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
  color:var(--text);
}
.news-card:hover .news-title{color:var(--ink);}
.news-ex{
  font-size:14px;color:var(--muted);line-height:1.75;margin-bottom:18px;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.news-meta{
  margin-top:auto;padding-top:14px;border-top:1px solid var(--line-weak);
  display:flex;align-items:center;justify-content:space-between;
  font-size:13px;color:var(--muted);
}
.news-meta .more{color:var(--ink);font-weight:600;}
.news-link{position:absolute;inset:0;z-index:5;font-size:0;}
.news-card{position:relative;}
.empty-card{
  grid-column:1/-1;
  border:1px dashed var(--line);border-radius:var(--r);
  padding:56px 24px;text-align:center;background:#fff;
}
.empty-card i{font-size:26px;color:var(--ink-2);display:block;margin-bottom:16px;}
.empty-card .l1{font-size:16px;font-weight:700;color:var(--text);margin-bottom:6px;}
.empty-card .l2{font-size:14px;color:var(--muted);margin:0;}

/* FAQ */
.faq-wrap{display:grid;grid-template-columns:4fr 8fr;gap:48px;}
.faq-aside{position:sticky;top:120px;align-self:start;}
.faq-aside .section-title{margin-bottom:16px;}
.faq-aside p{color:var(--muted);font-size:15px;line-height:1.8;margin-bottom:26px;}
.accordion{--bs-accordion-border-color:var(--line);--bs-accordion-border-radius:0;--bs-accordion-inner-border-radius:0;}
.accordion-item{background:transparent;border:none;border-bottom:1px solid var(--line);}
.accordion-item:first-of-type,.accordion-item:last-of-type{border-radius:0;}
.accordion-button{
  background:transparent;color:var(--text);
  font-family:var(--font-sans);font-size:17px;font-weight:700;line-height:1.5;
  padding:24px 44px 24px 0;border-radius:0 !important;box-shadow:none !important;
}
.accordion-button:not(.collapsed){color:var(--ink);background:transparent;}
.accordion-button::after{
  content:"+";
  background-image:none !important;
  width:28px;height:28px;line-height:24px;text-align:center;
  border:1px solid var(--line);border-radius:50%;
  font-size:18px;color:var(--ink);font-weight:400;
  display:flex;align-items:center;justify-content:center;
  position:absolute;right:0;top:50%;transform:translateY(-50%);
  transition:all .25s var(--ease);
}
.accordion-button:not(.collapsed)::after{content:"−";background:var(--ink);border-color:var(--ink);color:#fff;}
.accordion-body{
  background:var(--bg);border-radius:var(--r-sm);
  padding:20px 22px;font-size:15px;line-height:1.9;color:var(--muted);
  margin-bottom:22px;
}
.accordion-body strong{color:var(--text);}

/* CTA 条带 */
.cta-band{
  position:relative;background:var(--dark);color:#fff;
  padding:96px 0 120px;overflow:hidden;margin-top:24px;
}
.cta-band::before{
  content:"";position:absolute;inset:0;
  background:url(/assets/images/backpic/back-2.png) center/cover no-repeat;
  opacity:.13;
}
.cta-band .container{position:relative;z-index:2;}
.cta-band h2{color:#fff;font-size:clamp(26px,3vw,38px);font-weight:800;line-height:1.25;margin-bottom:18px;}
.cta-band .cta-desc{color:rgba(255,255,255,.72);font-size:15px;line-height:1.85;margin-bottom:26px;max-width:420px;}
.cta-points{display:flex;flex-direction:column;gap:14px;margin:0;}
.cta-points li{display:flex;gap:12px;align-items:flex-start;font-size:15px;color:rgba(255,255,255,.86);line-height:1.7;}
.cta-points i{color:var(--accent);font-size:14px;margin-top:6px;}
.form-card{
  background:#fff;border-radius:var(--r-lg);
  padding:36px;box-shadow:0 30px 60px -26px rgba(0,0,0,.5);
  transform:translateY(-40px);
}
.form-card h3{font-size:22px;font-weight:800;margin-bottom:8px;}
.form-card .form-note{font-size:14px;color:var(--muted);margin-bottom:26px;}
.form-label{font-size:14px;font-weight:600;color:var(--text);margin-bottom:8px;}
.form-label .req{color:var(--accent);margin-left:3px;}
.form-control,.form-select{
  height:48px;border-radius:var(--r-xs);border:1px solid var(--line);
  font-size:15px;color:var(--text);background-color:#fff;
  padding:0 14px;
  transition:border-color .2s var(--ease),box-shadow .2s var(--ease);
}
textarea.form-control{height:auto;min-height:110px;padding:12px 14px;line-height:1.75;resize:vertical;}
.form-control::placeholder{color:#9AA39D;}
.form-control:focus,.form-select:focus{
  border-color:var(--ink);box-shadow:0 0 0 3px rgba(17,75,67,.12);background-color:#fff;color:var(--text);
}
.form-check-input{width:18px;height:18px;margin-top:3px;border-color:var(--line);}
.form-check-input:checked{background-color:var(--ink);border-color:var(--ink);}
.form-check-input:focus{box-shadow:0 0 0 3px rgba(17,75,67,.12);border-color:var(--ink);}
.form-check-label{font-size:13px;color:var(--muted);line-height:1.7;}
.privacy-line{font-size:13px;color:var(--muted);line-height:1.7;}

/* 页脚 */
.site-footer{background:var(--dark);color:rgba(255,255,255,.72);padding:76px 0 0;}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:32px;padding-bottom:52px;}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:16px;}
.footer-brand .brand-mark{background:rgba(255,255,255,.1);color:#fff;}
.footer-brand .brand-name{color:#fff;}
.footer-brand .brand-sub{color:rgba(255,255,255,.5);}
.footer-about{font-size:14px;line-height:1.85;color:rgba(255,255,255,.6);margin:0;}
.footer-title{font-size:14px;font-weight:700;color:#7FB3A7;letter-spacing:.06em;margin-bottom:18px;}
.footer-links{display:flex;flex-direction:column;gap:12px;}
.footer-links a{font-size:14px;color:rgba(255,255,255,.72);transition:color .2s var(--ease),transform .2s var(--ease);display:inline-block;}
.footer-links a:hover{color:#fff;transform:translateX(2px);}
.footer-form .form-control{
  background:rgba(255,255,255,.06);border-color:rgba(255,255,255,.16);color:#fff;
}
.footer-form .form-control::placeholder{color:rgba(255,255,255,.45);}
.footer-form .form-control:focus{background:rgba(255,255,255,.1);border-color:rgba(255,255,255,.4);box-shadow:0 0 0 3px rgba(255,255,255,.08);color:#fff;}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.1);
  padding:22px 0;display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;
  font-size:13px;color:rgba(255,255,255,.5);
}
.footer-bottom a{color:rgba(255,255,255,.6);}
.footer-bottom a:hover{color:#fff;}

/* ============ 动效 ============ */
.reveal{opacity:0;transform:translateY(16px);transition:opacity .6s var(--ease),transform .6s var(--ease);}
.reveal.in{opacity:1;transform:none;}
.reveal.d1{transition-delay:.07s;}
.reveal.d2{transition-delay:.14s;}
.reveal.d3{transition-delay:.21s;}

/* ============ 响应式 ============ */
@media (max-width:1199px){
  .nav-chip{padding:0 13px;font-size:13px;}
  .nav-chip span{white-space:nowrap;}
}
@media (max-width:991px){
  .container{padding-left:24px;padding-right:24px;}
  .hero{padding:56px 0 64px;}
  .section{padding:72px 0;}
  .metrics{grid-template-columns:repeat(2,minmax(0,1fr));gap:20px 8px;}
  .cap-grid{grid-template-columns:1fr;}
  .cap-list{grid-template-columns:1fr 1fr;}
  .steps{flex-direction:column;}
  .step-card{flex:1 1 auto !important;padding-left:64px;}
  .step-card::after{
    top:auto;bottom:-13px;left:32px;right:auto;width:2px;height:26px;
  }
  .step-num{position:absolute;left:26px;top:32px;font-size:30px;margin:0;}
  .case-grid{grid-template-columns:1fr;}
  .case-hero{min-height:320px;}
  .news-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
  .faq-wrap{grid-template-columns:1fr;gap:28px;}
  .faq-aside{position:static;}
  .cta-band{padding:72px 0 96px;}
  .form-card{transform:none;padding:28px;margin-top:32px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px 24px;}
}
@media (max-width:767px){
  body{font-size:15.5px;}
  .container{padding-left:20px;padding-right:20px;}
  .site-header{padding-top:10px;}
  .nav-panel{padding:10px 12px;}
  .section{padding:64px 0;}
  .section-head{margin-bottom:36px;}
  .hero h1{font-size:clamp(30px,8vw,40px);}
  .btn-row .btn{width:100%;}
  .channel-card{padding:22px;}
  .cap-list{grid-template-columns:1fr;}
  .news-grid{grid-template-columns:1fr;}
  .case-hero .inner{padding:26px;}
  .footer-grid{grid-template-columns:1fr;}
  .footer-bottom{flex-direction:column;align-items:flex-start;}
}
@media (max-width:575px){
  .card,.cap-card,.step-card,.news-card,.case-side-card,.channel-card{border-radius:var(--r-sm);}
  .section{padding:56px 0;}
  .metrics{grid-template-columns:1fr 1fr;}
  .metric-num{font-size:26px;}
  .form-card{padding:22px;}
  .eyebrow{font-size:11px;}
}
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto;}
  .reveal{opacity:1;transform:none;transition:none;}
  *{animation-duration:.001ms !important;transition-duration:.001ms !important;}
}

/* roulang page: article */
:root{
  --ink:#114B43;
  --ink-600:#1E6A5E;
  --ink-50:#E7EFEB;
  --accent:#C4622E;
  --accent-600:#A44E1F;
  --bg:#F7F5F0;
  --surface:#FFFFFF;
  --dark:#12211E;
  --text:#232826;
  --muted:#5C6660;
  --line:#E4E1D8;
  --line-soft:#EFEDE7;
  --ok:#2F7A5A;
  --warn:#8A6A1F;
  --err:#B3402C;

  --radius-xs:10px;
  --radius-sm:12px;
  --radius:16px;
  --radius-lg:20px;

  --shadow-xs:0 1px 2px rgba(18,33,30,.04);
  --shadow-sm:0 1px 2px rgba(18,33,30,.04),0 10px 24px -14px rgba(18,33,30,.12);
  --shadow-md:0 1px 2px rgba(18,33,30,.04),0 14px 34px -14px rgba(18,33,30,.14);
  --shadow-lg:0 2px 4px rgba(18,33,30,.05),0 28px 52px -20px rgba(18,33,30,.24);

  --ease:cubic-bezier(.22,.61,.36,1);

  --bs-primary:#114B43;
  --bs-body-color:#232826;
  --bs-body-bg:#F7F5F0;
  --bs-border-color:#E4E1D8;
  --bs-link-color:#114B43;
  --bs-link-hover-color:#C4622E;
  --bs-font-sans-serif:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Segoe UI",Roboto,system-ui,-apple-system,sans-serif;
}

*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Segoe UI",Roboto,system-ui,-apple-system,sans-serif;
  font-size:16px;
  line-height:1.85;
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}
img{max-width:100%;display:block;height:auto;}
a{color:var(--ink);text-decoration:none;transition:color .2s var(--ease);}
a:hover{color:var(--accent);}
button{font-family:inherit;}
h1,h2,h3,h4{margin:0;color:var(--text);letter-spacing:-.01em;}
p{margin:0;}
ul,ol{margin:0;}
:focus-visible{outline:2px solid var(--accent);outline-offset:2px;border-radius:4px;}

.container{width:100%;max-width:1240px;margin:0 auto;padding:0 32px;}

/* ---------- header ---------- */
.site-header{
  position:sticky;top:0;z-index:1030;
  padding:16px 0;
  transition:padding .25s var(--ease);
}
.site-header.is-scrolled{padding:8px 0;}
.nav-panel{
  display:flex;align-items:center;gap:18px;
  background:rgba(255,255,255,.92);
  -webkit-backdrop-filter:blur(14px);
  backdrop-filter:blur(14px);
  border:1px solid var(--line);
  border-radius:var(--radius-lg);
  padding:12px 16px;
  box-shadow:var(--shadow-sm);
  transition:box-shadow .25s var(--ease),border-color .25s var(--ease);
}
.site-header.is-scrolled .nav-panel{box-shadow:var(--shadow-md);border-color:#DBD7CB;}

.brand{display:flex;align-items:center;gap:12px;flex:0 0 auto;}
.brand-mark{
  width:44px;height:44px;flex:0 0 44px;
  display:inline-flex;align-items:center;justify-content:center;
  background:var(--ink);color:#fff;
  border-radius:var(--radius-sm);
  font-size:19px;font-weight:800;letter-spacing:.02em;
}
.brand-text{display:flex;flex-direction:column;line-height:1.2;}
.brand-name{font-size:16px;font-weight:800;color:var(--text);letter-spacing:-.01em;}
.brand-sub{font-size:11.5px;color:var(--muted);letter-spacing:.04em;}

.nav-links{display:flex;align-items:center;gap:6px;margin-left:auto;}
.nav-chip{
  display:inline-flex;align-items:center;gap:8px;
  min-height:44px;padding:8px 14px;
  border-radius:var(--radius-sm);
  border:1px solid transparent;
  font-size:14.5px;font-weight:600;color:#3A423F;
  transition:background .2s var(--ease),color .2s var(--ease),border-color .2s var(--ease),transform .2s var(--ease);
}
.nav-chip i{font-size:13px;color:var(--ink-600);transition:color .2s var(--ease);}
.nav-chip:hover{background:var(--bg);border-color:var(--line);color:var(--ink);transform:translateY(-1px);}
.nav-chip.active{background:var(--ink);color:#fff;border-color:var(--ink);}
.nav-chip.active i{color:#fff;}
.nav-actions{display:flex;align-items:center;gap:10px;flex:0 0 auto;}

.nav-toggle{
  width:44px;height:44px;
  display:inline-flex;align-items:center;justify-content:center;
  background:#fff;border:1px solid var(--line);
  border-radius:var(--radius-sm);
  color:var(--ink);font-size:16px;
  transition:background .2s var(--ease),border-color .2s var(--ease);
}
.nav-toggle:hover{background:var(--ink-50);border-color:rgba(17,75,67,.22);}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:52px;padding:0 24px;
  border-radius:var(--radius-xs);
  border:1.5px solid transparent;
  font-size:15.5px;font-weight:700;line-height:1;
  cursor:pointer;
  transition:background .2s var(--ease),color .2s var(--ease),border-color .2s var(--ease),transform .2s var(--ease),box-shadow .2s var(--ease);
}
.btn-arrow{display:inline-flex;transition:transform .2s var(--ease);}
.btn:hover .btn-arrow{transform:translateX(4px);}
.btn-primary{background:var(--accent);border-color:var(--accent);color:#fff;}
.btn-primary:hover,.btn-primary:focus-visible{background:var(--accent-600);border-color:var(--accent-600);color:#fff;transform:translateY(-1px);box-shadow:0 10px 22px -12px rgba(164,78,31,.75);}
.btn-outline-primary{background:#fff;border-color:var(--ink);color:var(--ink);}
.btn-outline-primary:hover,.btn-outline-primary:focus-visible{background:var(--ink-50);border-color:var(--ink);color:var(--ink);transform:translateY(-1px);}
.btn-sm{height:44px;padding:0 18px;font-size:14.5px;}
.btn-block{width:100%;}

/* ---------- drawer ---------- */
.nav-drawer{background:var(--bg);border:0;}
.nav-drawer .offcanvas-header{border-bottom:1px solid var(--line);padding:20px 22px;}
.nav-drawer .offcanvas-title{font-size:16px;font-weight:800;}
.drawer-close{
  width:44px;height:44px;display:inline-flex;align-items:center;justify-content:center;
  background:#fff;border:1px solid var(--line);border-radius:var(--radius-sm);
  color:var(--ink);font-size:16px;
}
.drawer-grid{display:grid;grid-template-columns:1fr 1fr;gap:12px;}
.drawer-chip{
  display:flex;flex-direction:column;gap:8px;
  padding:16px;border-radius:var(--radius-sm);
  background:#fff;border:1px solid var(--line);
  font-size:14.5px;font-weight:700;color:var(--text);
  min-height:88px;justify-content:center;
}
.drawer-chip i{color:var(--ink-600);font-size:15px;}
.drawer-chip.active{background:var(--ink);color:#fff;border-color:var(--ink);}
.drawer-chip.active i{color:#fff;}

/* ---------- page heads ---------- */
.article-head{
  padding:36px 0 12px;
  position:relative;
}
.article-head::before{
  content:"";position:absolute;inset:0 0 auto 0;height:280px;
  background:linear-gradient(180deg,rgba(17,75,67,.07),rgba(247,245,240,0));
  pointer-events:none;
}
.article-head .container{position:relative;z-index:1;}

.crumbs{
  display:flex;flex-wrap:wrap;align-items:center;gap:8px;
  font-size:13px;color:var(--muted);margin-bottom:22px;
}
.crumbs a{color:var(--muted);}
.crumbs a:hover{color:var(--ink);}
.crumbs .sep{color:#C9C4B6;}
.crumbs .current{color:#3A423F;max-width:520px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;}

.tag{
  display:inline-flex;align-items:center;gap:6px;
  padding:5px 12px;border-radius:999px;
  background:var(--ink-50);color:var(--ink);
  font-size:12px;font-weight:700;letter-spacing:.06em;
}
.article-title{
  font-size:clamp(28px,3.6vw,44px);
  font-weight:900;line-height:1.22;letter-spacing:-.02em;
  margin:18px 0 18px;max-width:920px;
}
.article-meta{
  display:flex;flex-wrap:wrap;align-items:center;gap:10px 18px;
  font-size:13.5px;color:var(--muted);
  font-variant-numeric:tabular-nums;
}
.article-meta .dot{width:4px;height:4px;border-radius:50%;background:#C9C4B6;}

/* ---------- layout ---------- */
.article-main{padding:36px 0 96px;}
.article-layout{
  display:grid;
  grid-template-columns:minmax(0,1fr);
  gap:40px;
  align-items:start;
}
@media (min-width:1200px){
  .article-layout{grid-template-columns:minmax(0,1fr) 260px;}
}

.article-card{
  max-width:860px;
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--radius-lg);
  padding:44px;
  box-shadow:var(--shadow-sm);
}

/* ---------- article body ---------- */
.article-body{font-size:16px;line-height:1.9;color:var(--text);word-wrap:break-word;}
.article-body h2{
  font-size:clamp(22px,2.2vw,27px);font-weight:800;line-height:1.32;
  margin:48px 0 16px;padding-left:16px;
  border-left:4px solid var(--ink);
}
.article-body h3{font-size:20px;font-weight:700;line-height:1.4;margin:32px 0 12px;}
.article-body h4{font-size:17px;font-weight:700;margin:24px 0 10px;color:var(--ink-600);}
.article-body p{margin:0 0 18px;}
.article-body ul,.article-body ol{margin:0 0 18px;padding-left:24px;}
.article-body li{margin-bottom:8px;}
.article-body li::marker{color:var(--ink);font-weight:700;}
.article-body blockquote{
  margin:24px 0;padding:16px 22px;
  background:var(--ink-50);
  border-left:3px solid var(--ink);
  border-radius:0 var(--radius-sm) var(--radius-sm) 0;
  color:#33403A;
}
.article-body blockquote p:last-child{margin-bottom:0;}
.article-body a{color:var(--ink);text-decoration:underline;text-underline-offset:3px;}
.article-body a:hover{color:var(--accent);}
.article-body img{border-radius:var(--radius-sm);margin:24px 0;}
.article-body figure{margin:24px 0;}
.article-body figcaption{font-size:13px;color:var(--muted);text-align:center;margin-top:10px;}
.article-body table{
  width:100%;margin:24px 0;border-collapse:separate;border-spacing:0;
  border:1px solid var(--line);border-radius:var(--radius-sm);overflow:hidden;
  font-size:15px;
}
.article-body th,.article-body td{padding:12px 16px;border-bottom:1px solid var(--line);text-align:left;}
.article-body th{background:var(--ink-50);color:var(--ink);font-weight:700;}
.article-body tbody tr:nth-child(even){background:#FBFAF7;}
.article-body tr:last-child td{border-bottom:0;}
.article-body code{
  background:var(--ink-50);color:var(--ink-600);
  padding:2px 6px;border-radius:6px;font-size:.92em;
}
.article-body hr{border:0;border-top:1px solid var(--line);margin:40px 0;}

/* ---------- empty ---------- */
.empty-state{
  border:1px dashed #CFC9BA;
  border-radius:var(--radius);
  background:#FCFBF8;
  padding:56px 24px;
  text-align:center;
}
.empty-state i{font-size:30px;color:var(--ink-600);}
.empty-state h3{font-size:19px;font-weight:800;margin:16px 0 8px;}
.empty-state p{font-size:14.5px;color:var(--muted);margin-bottom:22px;}

/* ---------- toc ---------- */
.toc-card{
  position:sticky;top:96px;
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--radius);
  padding:20px;
  box-shadow:var(--shadow-xs);
}
.toc-title{
  font-size:12px;font-weight:800;letter-spacing:.08em;
  color:var(--muted);margin-bottom:12px;
}
.toc-list{list-style:none;margin:0;padding:0;display:grid;gap:2px;max-height:60vh;overflow:auto;}
.toc-list a{
  display:block;padding:7px 10px;
  border-radius:8px;border-left:2px solid transparent;
  font-size:14px;color:var(--muted);line-height:1.5;
}
.toc-list a:hover{background:var(--bg);color:var(--ink);}
.toc-list a.is-active{color:var(--ink);background:var(--ink-50);border-left-color:var(--ink);font-weight:700;}
.toc-side-card{
  margin-top:16px;padding:18px;
  background:var(--dark);border-radius:var(--radius);
  color:#fff;
}
.toc-side-card h4{font-size:16px;font-weight:800;color:#fff;margin-bottom:8px;}
.toc-side-card p{font-size:13.5px;color:rgba(255,255,255,.72);margin-bottom:14px;line-height:1.7;}
.toc-side-card .btn{width:100%;}

/* ---------- related ---------- */
.related{padding:0 0 96px;}
.section-head{
  display:flex;align-items:flex-end;justify-content:space-between;
  gap:20px;margin-bottom:28px;flex-wrap:wrap;
}
.section-head h2{font-size:clamp(24px,2.4vw,32px);font-weight:800;line-height:1.2;}
.section-head .link-more{
  font-size:14.5px;font-weight:700;color:var(--ink);
  text-decoration:underline;text-underline-offset:3px;
}
.section-head .link-more:hover{color:var(--accent);}

.card-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px;}
.card-x{
  display:flex;flex-direction:column;
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--radius);
  overflow:hidden;
  box-shadow:var(--shadow-xs);
  transition:transform .2s var(--ease),box-shadow .2s var(--ease),border-color .2s var(--ease);
  color:var(--text);
  height:100%;
}
.card-x:hover{
  transform:translateY(-2px);
  border-color:rgba(17,75,67,.22);
  box-shadow:var(--shadow-md);
  color:var(--text);
}
.card-cover{position:relative;aspect-ratio:16/9;overflow:hidden;background:var(--ink-50);}
.card-cover img{width:100%;height:100%;object-fit:cover;transition:transform .4s var(--ease);}
.card-x:hover .card-cover img{transform:scale(1.04);}
.card-body-x{padding:20px 22px 24px;display:flex;flex-direction:column;gap:10px;flex:1;}
.card-body-x .tag{align-self:flex-start;}
.card-body-x h3{font-size:18px;font-weight:700;line-height:1.45;margin:0;}
.card-body-x p{font-size:14.5px;line-height:1.75;color:var(--muted);margin:0;}
.card-foot{
  display:flex;align-items:center;justify-content:space-between;
  margin-top:auto;padding-top:6px;
  font-size:13px;color:var(--muted);
  font-variant-numeric:tabular-nums;
}
.card-foot .go{color:var(--ink);font-weight:700;}

/* ---------- back actions ---------- */
.back-actions{
  display:flex;flex-wrap:wrap;gap:12px;
  margin-top:44px;padding-top:32px;
  border-top:1px solid var(--line-soft);
}

/* ---------- cta strip ---------- */
.cta-strip{
  position:relative;
  background:var(--dark);
  border-radius:var(--radius-lg);
  overflow:hidden;
  padding:48px;
  color:#fff;
}
.cta-strip::after{
  content:"";position:absolute;inset:0;
  background-image:url('/assets/images/backpic/back-2.png');
  background-size:cover;background-position:center;
  opacity:.16;mix-blend-mode:luminosity;
}
.cta-strip > *{position:relative;z-index:1;}
.cta-strip h2{color:#fff;font-size:clamp(24px,2.6vw,34px);font-weight:800;line-height:1.25;margin-bottom:14px;}
.cta-strip p{color:rgba(255,255,255,.74);font-size:15.5px;max-width:560px;margin-bottom:24px;}
.cta-list{list-style:none;padding:0;margin:0 0 26px;display:grid;gap:10px;}
.cta-list li{display:flex;gap:10px;align-items:flex-start;font-size:14.5px;color:rgba(255,255,255,.82);}
.cta-list i{color:#7FC0AC;margin-top:4px;font-size:13px;}

/* ---------- footer ---------- */
.site-footer{background:var(--dark);color:#fff;padding:72px 0 28px;margin-top:0;}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.3fr;gap:32px;}
.footer-brand{display:flex;align-items:center;gap:12px;margin-bottom:16px;}
.footer-brand .brand-mark{background:rgba(255,255,255,.1);color:#fff;}
.footer-brand .brand-name{color:#fff;font-size:16px;font-weight:800;}
.footer-brand .brand-sub{color:var(--ink-50);opacity:.7;}
.footer-about{font-size:14px;line-height:1.8;color:rgba(255,255,255,.68);max-width:360px;}
.footer-title{font-size:14px;font-weight:800;color:#8FC6B5;margin-bottom:16px;letter-spacing:.02em;}
.footer-links{display:grid;gap:10px;}
.footer-links a{font-size:14px;color:rgba(255,255,255,.72);transition:color .2s var(--ease),transform .2s var(--ease);}
.footer-links a:hover{color:#fff;transform:translateX(2px);}
.footer-form .form-control{
  height:48px;border-radius:var(--radius-xs);
  border:1px solid rgba(255,255,255,.18);
  background:rgba(255,255,255,.06);color:#fff;font-size:14.5px;
}
.footer-form .form-control::placeholder{color:rgba(255,255,255,.42);}
.footer-form .form-control:focus{
  background:rgba(255,255,255,.1);border-color:var(--accent);
  box-shadow:0 0 0 3px rgba(196,98,46,.22);color:#fff;
}
.footer-bottom{
  margin-top:52px;padding-top:22px;
  border-top:1px solid rgba(255,255,255,.1);
  display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:13px;color:rgba(255,255,255,.55);
}

/* ---------- reveal ---------- */
.reveal{opacity:0;transform:translateY(16px);transition:opacity .6s var(--ease),transform .6s var(--ease);}
.reveal.is-visible{opacity:1;transform:none;}

/* ---------- responsive ---------- */
@media (max-width:1199.98px){
  .article-card{max-width:none;}
}
@media (max-width:991.98px){
  .container{padding:0 24px;}
  .article-main{padding:28px 0 72px;}
  .article-head{padding:28px 0 8px;}
  .card-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:20px;}
  .cta-strip{padding:36px 28px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px;}
}
@media (max-width:767.98px){
  .container{padding:0 20px;}
  .article-card{padding:26px 20px;border-radius:var(--radius);}
  .article-body h2{margin-top:36px;}
  .article-main{padding:24px 0 56px;}
  .related{padding-bottom:64px;}
  .card-grid{grid-template-columns:1fr;}
  .back-actions .btn{width:100%;}
  .article-body table{display:block;overflow-x:auto;}
  .cta-strip{padding:30px 22px;border-radius:var(--radius);}
}
@media (max-width:575.98px){
  .brand-sub{display:none;}
  .article-title{font-size:26px;}
  .footer-grid{grid-template-columns:1fr;}
  .site-footer{padding:56px 0 24px;}
}

@media (prefers-reduced-motion:reduce){
  *{animation:none !important;transition:none !important;}
  .reveal{opacity:1;transform:none;}
  html{scroll-behavior:auto;}
}

/* roulang page: category1 */
:root{
  --brand:#114B43;
  --brand-light:#1E6A5E;
  --brand-soft:#E7EFEB;
  --accent:#C4622E;
  --accent-dark:#A44E1F;
  --bg:#F7F5F0;
  --surface:#FFFFFF;
  --dark:#12211E;
  --text:#232826;
  --muted:#5C6660;
  --line:#E4E1D8;
  --line-soft:#EFEDE7;
  --ok:#2F7A5A;
  --warn:#8A6A1F;
  --danger:#B3402C;

  --radius-xl:20px;
  --radius:16px;
  --radius-sm:12px;
  --radius-xs:10px;

  --shadow:0 1px 2px rgba(18,33,30,.04), 0 14px 34px -14px rgba(18,33,30,.14);
  --shadow-lg:0 2px 4px rgba(18,33,30,.05), 0 22px 46px -18px rgba(18,33,30,.22);
  --shadow-sm:0 1px 2px rgba(18,33,30,.04), 0 8px 18px -10px rgba(18,33,30,.12);

  --ease:cubic-bezier(.22,.61,.36,1);
  --gutter:24px;
  --section-gap:104px;

  --bs-primary:#114B43;
  --bs-primary-rgb:17,75,67;
  --bs-body-color:#232826;
  --bs-body-bg:#F7F5F0;
  --bs-border-color:#E4E1D8;
  --bs-link-color:#114B43;
  --bs-link-hover-color:#C4622E;
  --bs-border-radius:12px;
  --bs-border-radius-lg:16px;
  --bs-font-sans-serif:"PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
}

*,*::before,*::after{box-sizing:border-box;}

html{scroll-behavior:smooth;-webkit-text-size-adjust:100%;}

body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:var(--bs-font-sans-serif);
  font-size:16px;
  line-height:1.85;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}

img{max-width:100%;height:auto;display:block;}
a{color:var(--brand);text-decoration:none;transition:color .2s var(--ease);}
a:hover{color:var(--accent);}
button{font-family:inherit;}
h1,h2,h3,h4{margin:0;color:var(--text);}
p{margin:0;}
ul,ol{margin:0;padding:0;list-style:none;}

::selection{background:var(--brand);color:#fff;}

.container{
  width:100%;
  max-width:1240px;
  margin:0 auto;
  padding-left:32px;
  padding-right:32px;
}

.section{padding:var(--section-gap) 0;}
.section-tight{padding:72px 0;}

.section-head{margin-bottom:48px;}
.section-head .eyebrow{
  display:inline-block;
  font-size:12px;
  letter-spacing:.08em;
  color:var(--brand-light);
  background:var(--brand-soft);
  border-radius:999px;
  padding:6px 14px;
  margin-bottom:16px;
  font-weight:600;
}
.section-head h2{
  font-size:clamp(26px,3vw,40px);
  font-weight:800;
  line-height:1.2;
  letter-spacing:-.01em;
}
.section-head p{
  margin-top:14px;
  color:var(--muted);
  font-size:16px;
  max-width:720px;
}

/* ---------- 顶部导航 ---------- */
.site-header{
  position:sticky;
  top:0;
  z-index:1030;
  padding:16px 0 12px;
  transition:padding .3s var(--ease);
}
.site-header.scrolled{padding:8px 0 6px;}

.nav-panel{
  display:flex;
  align-items:center;
  gap:20px;
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--radius-xl);
  box-shadow:var(--shadow);
  padding:12px 18px;
  transition:box-shadow .3s var(--ease), background .3s var(--ease), padding .3s var(--ease);
}
.site-header.scrolled .nav-panel{
  background:rgba(255,255,255,.92);
  backdrop-filter:blur(10px);
  box-shadow:var(--shadow-lg);
  padding:9px 16px;
}

.brand{display:flex;align-items:center;gap:12px;flex:0 0 auto;}
.brand-mark{
  width:42px;height:42px;flex:0 0 42px;
  display:inline-flex;align-items:center;justify-content:center;
  border-radius:12px;
  background:linear-gradient(150deg,var(--brand) 0%,var(--brand-light) 100%);
  color:#fff;font-weight:800;font-size:19px;
  letter-spacing:.02em;
}
.brand-text{display:flex;flex-direction:column;line-height:1.25;}
.brand-name{font-size:17px;font-weight:800;color:var(--brand);letter-spacing:-.01em;}
.brand-sub{font-size:11px;color:var(--muted);letter-spacing:.06em;}

.nav-links{
  display:flex;
  align-items:center;
  gap:8px;
  margin-left:auto;
}
.nav-chip{
  display:inline-flex;
  align-items:center;
  gap:8px;
  min-height:44px;
  padding:0 16px;
  border-radius:var(--radius-sm);
  border:1px solid transparent;
  background:var(--bg);
  color:var(--text);
  font-size:14px;
  font-weight:600;
  white-space:nowrap;
  transition:all .2s var(--ease);
}
.nav-chip i{font-size:13px;color:var(--brand-light);transition:color .2s var(--ease);}
.nav-chip:hover{
  background:var(--brand-soft);
  border-color:rgba(17,75,67,.22);
  color:var(--brand);
  transform:translateY(-2px);
}
.nav-chip.active{
  background:var(--brand);
  border-color:var(--brand);
  color:#fff;
}
.nav-chip.active i{color:#fff;}

.nav-actions{display:flex;align-items:center;gap:10px;flex:0 0 auto;}
.nav-toggle{
  width:46px;height:46px;
  display:inline-flex;align-items:center;justify-content:center;
  border-radius:var(--radius-sm);
  border:1px solid var(--line);
  background:var(--bg);
  color:var(--brand);
  font-size:17px;
  transition:all .2s var(--ease);
}
.nav-toggle:hover{background:var(--brand-soft);border-color:rgba(17,75,67,.22);}

/* ---------- 按钮 ---------- */
.btn{
  border-radius:var(--radius-xs);
  font-weight:600;
  font-size:15px;
  transition:all .2s var(--ease);
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  border-width:1.5px;
}
.btn:focus-visible{
  outline:2px solid var(--accent);
  outline-offset:2px;
  box-shadow:none;
}
.btn-primary{
  --bs-btn-bg:var(--accent);
  --bs-btn-border-color:var(--accent);
  --bs-btn-hover-bg:var(--accent-dark);
  --bs-btn-hover-border-color:var(--accent-dark);
  --bs-btn-active-bg:var(--accent-dark);
  --bs-btn-active-border-color:var(--accent-dark);
  --bs-btn-color:#fff;
  --bs-btn-hover-color:#fff;
  --bs-btn-active-color:#fff;
  --bs-btn-disabled-bg:var(--accent);
  --bs-btn-disabled-border-color:var(--accent);
  min-height:52px;
  padding:0 26px;
}
.btn-primary:hover{transform:translateY(-1px);}
.nav-actions .btn-primary{min-height:44px;padding:0 20px;font-size:14px;}

.btn-outline-brand{
  background:#fff;
  color:var(--brand);
  border:1.5px solid var(--brand);
  min-height:52px;
  padding:0 24px;
}
.btn-outline-brand:hover{background:var(--brand-soft);color:var(--brand);transform:translateY(-1px);}

.btn-link-brand{
  color:var(--brand);
  text-decoration:underline;
  text-underline-offset:4px;
  font-weight:600;
  font-size:15px;
  padding:0;
}
.btn-link-brand:hover{color:var(--accent);}

.btn-arrow{
  display:inline-flex;
  transition:transform .2s var(--ease);
}
.btn:hover .btn-arrow{transform:translateX(4px);}

/* ---------- 徽章与标签 ---------- */
.badge-soft{
  display:inline-flex;
  align-items:center;
  gap:6px;
  border-radius:999px;
  background:var(--brand-soft);
  color:var(--brand);
  font-size:12px;
  font-weight:600;
  letter-spacing:.06em;
  padding:6px 14px;
}
.badge-outline{
  display:inline-flex;
  align-items:center;
  border-radius:999px;
  border:1px solid var(--line);
  background:#fff;
  color:var(--muted);
  font-size:12px;
  letter-spacing:.06em;
  padding:5px 12px;
}
.badge-dark-soft{
  display:inline-flex;
  align-items:center;
  border-radius:999px;
  background:rgba(255,255,255,.12);
  color:#fff;
  font-size:12px;
  letter-spacing:.06em;
  padding:6px 14px;
}

/* ---------- 动效 ---------- */
.reveal{
  opacity:0;
  transform:translateY(16px);
  transition:opacity .6s var(--ease), transform .6s var(--ease);
}
.reveal.is-visible{opacity:1;transform:none;}

/* ---------- 分类页 Hero ---------- */
.page-hero{padding:32px 0 8px;}
.breadcrumb-row{
  display:flex;
  align-items:center;
  gap:10px;
  font-size:13px;
  color:var(--muted);
  margin-bottom:18px;
}
.breadcrumb-row a{color:var(--muted);}
.breadcrumb-row a:hover{color:var(--brand);}
.breadcrumb-row .current{color:var(--brand);font-weight:600;}

.hero-card{
  position:relative;
  overflow:hidden;
  border-radius:var(--radius-xl);
  border:1px solid var(--line);
  background:var(--surface);
  box-shadow:var(--shadow);
  padding:44px 48px;
  min-height:230px;
  display:flex;
  flex-direction:column;
  justify-content:center;
  gap:16px;
}
.hero-card::before{
  content:"";
  position:absolute;
  inset:0;
  background-image:url('/assets/images/backpic/back-2.png');
  background-size:cover;
  background-position:center right;
  opacity:.14;
  pointer-events:none;
}
.hero-card::after{
  content:"";
  position:absolute;
  left:0;top:0;bottom:0;
  width:4px;
  background:linear-gradient(180deg,var(--brand),var(--accent));
}
.hero-card > *{position:relative;z-index:1;}
.hero-card h1{
  font-size:clamp(30px,4.2vw,48px);
  font-weight:900;
  line-height:1.14;
  letter-spacing:-.02em;
  max-width:820px;
}
.hero-card .hero-lead{
  color:var(--muted);
  font-size:17px;
  max-width:680px;
}
.hero-meta{
  display:flex;
  flex-wrap:wrap;
  gap:10px;
  margin-top:6px;
}

/* ---------- 主内容布局 ---------- */
.content-layout{padding:56px 0 var(--section-gap);}

.side-card{
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--radius-xl);
  box-shadow:var(--shadow-sm);
  padding:26px 24px;
}
.side-sticky{position:sticky;top:118px;display:flex;flex-direction:column;gap:24px;}

.side-title{
  font-size:12px;
  letter-spacing:.08em;
  color:var(--muted);
  font-weight:700;
  margin-bottom:16px;
}
.toc-list{display:flex;flex-direction:column;gap:4px;}
.toc-list a{
  display:flex;
  align-items:center;
  gap:10px;
  padding:10px 12px;
  border-radius:var(--radius-xs);
  color:var(--text);
  font-size:14px;
  font-weight:500;
  transition:all .2s var(--ease);
  min-height:44px;
}
.toc-list a .num{
  font-size:12px;
  color:var(--brand-light);
  font-variant-numeric:tabular-nums;
  font-weight:700;
}
.toc-list a:hover{background:var(--brand-soft);color:var(--brand);transform:translateX(2px);}
.toc-list a.active{background:var(--brand-soft);color:var(--brand);font-weight:700;}

.side-cta{
  background:var(--dark);
  border-radius:var(--radius);
  padding:24px 22px;
  color:#fff;
}
.side-cta h3{font-size:19px;font-weight:700;color:#fff;margin-bottom:8px;}
.side-cta p{font-size:14px;color:rgba(255,255,255,.72);line-height:1.7;margin-bottom:18px;}
.side-cta .btn-primary{width:100%;min-height:48px;}

.stat-row{display:flex;flex-direction:column;gap:16px;margin-top:4px;}
.stat{
  display:flex;
  align-items:baseline;
  gap:10px;
  padding-bottom:14px;
  border-bottom:1px dashed var(--line);
}
.stat:last-child{border-bottom:none;padding-bottom:0;}
.stat-num{
  font-size:32px;
  font-weight:800;
  color:var(--brand);
  line-height:1;
  font-variant-numeric:tabular-nums;
  letter-spacing:-.02em;
}
.stat-label{font-size:13px;color:var(--muted);}

/* ---------- 内容块 ---------- */
.block{
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--radius-xl);
  box-shadow:var(--shadow-sm);
  padding:40px 40px 44px;
  margin-bottom:32px;
  scroll-margin-top:120px;
}
.block:last-child{margin-bottom:0;}
.block-head{margin-bottom:28px;}
.block-head h2{
  font-size:clamp(24px,2.4vw,32px);
  font-weight:800;
  line-height:1.25;
  letter-spacing:-.01em;
}
.block-head p{margin-top:12px;color:var(--muted);font-size:15.5px;max-width:660px;}

/* 条目网格：桌面 2 列、移动 1 列，高度不对称 */
.entry-grid{
  display:grid;
  grid-template-columns:repeat(2,1fr);
  gap:24px;
  align-items:start;
}
.entry-card{
  border:1px solid var(--line);
  border-radius:var(--radius);
  background:#fff;
  overflow:hidden;
  transition:all .2s var(--ease);
  display:flex;
  flex-direction:column;
}
.entry-card:hover{
  transform:translateY(-2px);
  border-color:rgba(17,75,67,.22);
  box-shadow:var(--shadow);
}
.entry-card.tall .entry-media{aspect-ratio:16/9;}
.entry-media{
  position:relative;
  aspect-ratio:16/10;
  overflow:hidden;
  background:var(--brand-soft);
}
.entry-media img{width:100%;height:100%;object-fit:cover;transition:transform .5s var(--ease);}
.entry-card:hover .entry-media img{transform:scale(1.03);}
.entry-media::after{
  content:"";
  position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(18,33,30,0) 42%,rgba(18,33,30,.72) 100%);
}
.entry-media .media-tag{
  position:absolute;
  left:16px;bottom:14px;
  z-index:2;
  color:#fff;
  font-size:12px;
  letter-spacing:.06em;
  font-weight:600;
}
.entry-body{padding:22px 24px 26px;display:flex;flex-direction:column;gap:10px;flex:1;}
.entry-body h3{font-size:20px;font-weight:700;line-height:1.35;}
.entry-body p{font-size:15px;line-height:1.75;color:var(--muted);}
.entry-index{
  font-size:13px;
  font-weight:800;
  color:var(--brand-light);
  font-variant-numeric:tabular-nums;
  letter-spacing:.06em;
}
.entry-foot{
  margin-top:auto;
  padding-top:14px;
  border-top:1px solid var(--line-soft);
  font-size:13px;
  color:var(--muted);
  display:flex;
  align-items:center;
  gap:8px;
}
.entry-foot i{color:var(--brand-light);font-size:12px;}

/* 时间线 */
.timeline{position:relative;display:flex;flex-direction:column;gap:0;}
.timeline-item{
  position:relative;
  padding:0 0 30px 68px;
}
.timeline-item:last-child{padding-bottom:0;}
.timeline-item::before{
  content:"";
  position:absolute;
  left:23px;top:38px;bottom:-2px;
  width:1px;
  background:var(--line);
}
.timeline-item:last-child::before{display:none;}
.timeline-num{
  position:absolute;
  left:0;top:0;
  width:46px;height:46px;
  border-radius:var(--radius-xs);
  background:var(--brand-soft);
  color:var(--brand);
  font-weight:800;
  font-size:15px;
  display:flex;align-items:center;justify-content:center;
  font-variant-numeric:tabular-nums;
}
.timeline-item h3{font-size:19px;font-weight:700;margin-bottom:8px;}
.timeline-item p{font-size:15px;color:var(--muted);line-height:1.8;}
.timeline-tags{display:flex;flex-wrap:wrap;gap:8px;margin-top:12px;}

/* 对比卡 */
.compare-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:24px;}
.compare-card{
  border:1px solid var(--line);
  border-radius:var(--radius);
  padding:28px 26px;
  background:#fff;
  transition:all .2s var(--ease);
}
.compare-card.is-brand{
  background:var(--brand-soft);
  border-color:rgba(17,75,67,.22);
}
.compare-card h3{font-size:20px;font-weight:700;margin-bottom:16px;display:flex;align-items:center;gap:10px;}
.compare-card h3 i{color:var(--brand-light);font-size:16px;}
.compare-list{display:flex;flex-direction:column;gap:12px;}
.compare-list li{
  position:relative;
  padding-left:22px;
  font-size:15px;
  line-height:1.75;
  color:var(--text);
}
.compare-list li::before{
  content:"";
  position:absolute;
  left:0;top:11px;
  width:8px;height:8px;
  border-radius:50%;
  background:var(--brand-light);
}
.compare-card.muted .compare-list li::before{background:var(--muted);opacity:.5;}

/* 编号清单 */
.number-list{display:flex;flex-direction:column;gap:20px;}
.number-item{
  display:flex;
  gap:18px;
  padding-bottom:20px;
  border-bottom:1px solid var(--line-soft);
}
.number-item:last-child{border-bottom:none;padding-bottom:0;}
.number-item .idx{
  flex:0 0 auto;
  font-size:20px;
  font-weight:800;
  color:var(--brand);
  font-variant-numeric:tabular-nums;
  line-height:1.6;
  min-width:36px;
}
.number-item h3{font-size:17px;font-weight:700;margin-bottom:6px;}
.number-item p{font-size:15px;color:var(--muted);line-height:1.85;}

/* FAQ */
.faq-accordion .accordion-item{
  border:none;
  border-bottom:1px solid var(--line);
  background:transparent;
}
.faq-accordion .accordion-item:last-child{border-bottom:none;}
.faq-accordion .accordion-button{
  background:transparent;
  border:none;
  box-shadow:none;
  padding:22px 0;
  font-size:17px;
  font-weight:700;
  color:var(--text);
  line-height:1.5;
  gap:16px;
}
.faq-accordion .accordion-button:not(.collapsed){
  color:var(--brand);
  background:transparent;
  box-shadow:none;
}
.faq-accordion .accordion-button:focus{
  box-shadow:none;
  outline:2px solid rgba(196,98,46,.5);
  outline-offset:-2px;
}
.faq-accordion .accordion-button::after{
  content:"";
  background-image:none;
  width:16px;height:16px;
  flex:0 0 16px;
  margin-left:auto;
  background:
    linear-gradient(var(--brand-light),var(--brand-light)) center/16px 2px no-repeat,
    linear-gradient(var(--brand-light),var(--brand-light)) center/2px 16px no-repeat;
  transition:transform .25s var(--ease);
}
.faq-accordion .accordion-button:not(.collapsed)::after{
  background:linear-gradient(var(--accent),var(--accent)) center/16px 2px no-repeat;
  transform:rotate(180deg);
}
.faq-accordion .accordion-body{
  background:var(--bg);
  border-radius:var(--radius-sm);
  padding:20px 22px;
  margin-bottom:18px;
  font-size:15px;
  color:var(--muted);
  line-height:1.85;
}

/* ---------- CTA 条带与表单 ---------- */
.cta-band{
  position:relative;
  overflow:hidden;
  background:var(--dark);
  border-radius:var(--radius-xl);
  padding:80px 0 64px;
  scroll-margin-top:110px;
}
.cta-band::before{
  content:"";
  position:absolute;inset:0;
  background-image:url('/assets/images/backpic/back-3.webp');
  background-size:cover;
  background-position:center;
  opacity:.16;
  pointer-events:none;
}
.cta-band .container{position:relative;z-index:1;}
.cta-band h2{
  color:#fff;
  font-size:clamp(26px,3vw,38px);
  font-weight:800;
  line-height:1.22;
  margin-bottom:16px;
}
.cta-band .cta-lead{color:rgba(255,255,255,.74);font-size:16px;max-width:420px;margin-bottom:26px;}
.cta-points{display:flex;flex-direction:column;gap:14px;}
.cta-points li{
  display:flex;
  gap:12px;
  color:rgba(255,255,255,.88);
  font-size:15px;
  line-height:1.7;
}
.cta-points i{color:var(--accent);margin-top:5px;font-size:13px;}

.form-card{
  background:#fff;
  border-radius:var(--radius-xl);
  box-shadow:var(--shadow-lg);
  padding:34px 32px 30px;
  margin-top:-40px;
}
.form-card h3{font-size:22px;font-weight:800;margin-bottom:6px;}
.form-card .form-hint{font-size:14px;color:var(--muted);margin-bottom:24px;}

.form-label{font-size:14px;font-weight:600;color:var(--text);margin-bottom:8px;}
.form-label .req{color:var(--accent);margin-left:2px;}
.form-control,.form-select{
  min-height:48px;
  border-radius:var(--radius-xs);
  border:1px solid var(--line);
  background:#fff;
  font-size:15px;
  color:var(--text);
  padding:10px 14px;
  transition:border-color .2s var(--ease), box-shadow .2s var(--ease);
}
textarea.form-control{min-height:110px;resize:vertical;line-height:1.7;}
.form-control:focus,.form-select:focus{
  border-color:var(--brand);
  box-shadow:0 0 0 3px rgba(17,75,67,.12);
  outline:none;
}
.form-control::placeholder{color:#A9B0AB;}
.form-check-input{
  width:18px;height:18px;
  border-color:var(--line);
  margin-top:4px;
}
.form-check-input:checked{background-color:var(--brand);border-color:var(--brand);}
.form-check-input:focus{border-color:var(--brand);box-shadow:0 0 0 3px rgba(17,75,67,.12);}
.form-check-label{font-size:13px;color:var(--muted);line-height:1.7;}
.form-card .btn-primary{width:100%;margin-top:8px;}

/* ---------- 页脚 ---------- */
.site-footer{
  background:var(--dark);
  color:rgba(255,255,255,.72);
  padding:72px 0 0;
  margin-top:var(--section-gap);
}
.footer-grid{
  display:grid;
  grid-template-columns:1.5fr 1fr 1fr 1.2fr;
  gap:32px;
  padding-bottom:48px;
}
.footer-brand{display:flex;align-items:center;gap:12px;margin-bottom:18px;}
.footer-brand .brand-name{color:#fff;}
.footer-brand .brand-sub{color:rgba(255,255,255,.6);}
.footer-about{font-size:14px;line-height:1.85;color:rgba(255,255,255,.62);max-width:340px;}
.footer-title{
  font-size:14px;
  font-weight:700;
  color:#8FC4B6;
  margin-bottom:18px;
  letter-spacing:.04em;
}
.footer-links{display:flex;flex-direction:column;gap:12px;}
.footer-links a{
  font-size:14px;
  color:rgba(255,255,255,.72);
  transition:all .2s var(--ease);
  display:inline-block;
}
.footer-links a:hover{color:#fff;transform:translateX(2px);}
.footer-form .form-control{
  background:rgba(255,255,255,.06);
  border-color:rgba(255,255,255,.16);
  color:#fff;
  min-height:46px;
}
.footer-form .form-control::placeholder{color:rgba(255,255,255,.42);}
.footer-form .form-control:focus{
  background:rgba(255,255,255,.1);
  border-color:var(--accent);
  box-shadow:0 0 0 3px rgba(196,98,46,.18);
}
.footer-form .btn-primary{min-height:46px;}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.1);
  padding:22px 0 26px;
  display:flex;
  flex-wrap:wrap;
  gap:12px;
  justify-content:space-between;
  font-size:13px;
  color:rgba(255,255,255,.5);
}

/* ---------- 移动端导航面板 ---------- */
.offcanvas.mobile-nav{
  background:var(--surface);
  border-left:1px solid var(--line);
  width:min(420px,92vw);
}
.mobile-nav .offcanvas-header{
  padding:20px 22px;
  border-bottom:1px solid var(--line-soft);
}
.mobile-nav .offcanvas-title{font-size:16px;font-weight:800;color:var(--brand);}
.mobile-nav .btn-close{--bs-btn-close-focus-shadow:none;opacity:.55;}
.mobile-nav .btn-close:hover{opacity:1;}
.mobile-nav .offcanvas-body{
  padding:22px;
  display:flex;
  flex-direction:column;
  gap:14px;
}
.mobile-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:12px;}
.mobile-chip{
  display:flex;
  flex-direction:column;
  gap:8px;
  min-height:96px;
  padding:16px 14px;
  border-radius:var(--radius-sm);
  border:1px solid var(--line);
  background:var(--bg);
  color:var(--text);
  font-size:14px;
  font-weight:600;
  transition:all .2s var(--ease);
}
.mobile-chip i{font-size:16px;color:var(--brand-light);}
.mobile-chip:hover{background:var(--brand-soft);border-color:rgba(17,75,67,.22);color:var(--brand);}
.mobile-chip.active{background:var(--brand);border-color:var(--brand);color:#fff;}
.mobile-chip.active i{color:#fff;}
.mobile-nav .btn-primary{margin-top:auto;}

/* ---------- 响应式 ---------- */
@media (max-width:1199px){
  .footer-grid{grid-template-columns:1.4fr 1fr 1fr;gap:28px;}
  .footer-grid > div:last-child{grid-column:1 / -1;}
}
@media (max-width:991px){
  :root{--section-gap:72px;}
  .container{padding-left:24px;padding-right:24px;}
  .hero-card{padding:34px 28px;min-height:auto;}
  .side-sticky{position:static;}
  .side-card{padding:22px 20px;}
  .toc-list{flex-direction:row;overflow-x:auto;gap:8px;padding-bottom:4px;}
  .toc-list a{white-space:nowrap;background:var(--bg);}
  .content-layout{padding:40px 0 72px;}
  .block{padding:32px 26px 34px;}
  .form-card{margin-top:0;}
  .cta-band{padding:56px 0 48px;}
}
@media (max-width:767px){
  :root{--section-gap:64px;}
  body{font-size:15.5px;}
  .container{padding-left:20px;padding-right:20px;}
  .entry-grid{grid-template-columns:1fr;}
  .compare-grid{grid-template-columns:1fr;}
  .timeline-item{padding-left:58px;}
  .timeline-num{width:40px;height:40px;font-size:14px;}
  .timeline-item::before{left:20px;}
  .footer-grid{grid-template-columns:1fr;gap:32px;}
  .nav-panel{padding:10px 14px;gap:12px;}
  .brand-name{font-size:15px;}
  .brand-sub{font-size:10px;}
  .hero-card h1{font-size:clamp(26px,7vw,34px);}
  .block{border-radius:var(--radius);}
  .form-card{padding:26px 22px 24px;}
  .section-head{margin-bottom:32px;}
}
@media (max-width:575px){
  .btn-primary,.btn-outline-brand{width:100%;}
  .nav-actions .btn-primary{width:auto;}
  .entry-card,.compare-card,.side-card{border-radius:var(--radius-sm);}
  .block{border-radius:var(--radius-sm);}
  .stat-num{font-size:28px;}
  .footer-bottom{flex-direction:column;gap:6px;}
}

@media (prefers-reduced-motion: reduce){
  *,*::before,*::after{animation:none !important;transition:none !important;}
  .reveal{opacity:1 !important;transform:none !important;}
  html{scroll-behavior:auto;}
}

/* roulang page: category2 */
:root{
  --ink:#114B43;
  --ink-light:#1E6A5E;
  --ink-soft:#E7EFEB;
  --accent:#C4622E;
  --accent-dark:#A44E1F;
  --bg:#F7F5F0;
  --surface:#FFFFFF;
  --dark:#12211E;
  --text:#232826;
  --muted:#5C6660;
  --line:#E4E1D8;
  --line-weak:#EFEDE7;
  --ok:#2F7A5A;
  --warn:#8A6A1F;
  --err:#B3402C;
  --radius-lg:20px;
  --radius:16px;
  --radius-sm:12px;
  --radius-btn:10px;
  --shadow-1:0 1px 2px rgba(18,33,30,.04);
  --shadow-2:0 1px 2px rgba(18,33,30,.04), 0 14px 34px -14px rgba(18,33,30,.14);
  --shadow-3:0 2px 4px rgba(18,33,30,.06), 0 24px 48px -20px rgba(18,33,30,.24);
  --ease:cubic-bezier(.22,.61,.36,1);
  --font-sans:"PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
  --font-serif:"Noto Serif SC","Songti SC","SimSun",Georgia,serif;
  --bs-primary:#114B43;
  --bs-body-color:#232826;
  --bs-body-bg:#F7F5F0;
  --bs-border-color:#E4E1D8;
  --bs-link-color:#114B43;
  --bs-link-hover-color:#A44E1F;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:var(--font-sans);
  font-size:16px;
  line-height:1.85;
  color:var(--text);
  background:var(--bg);
  padding-top:108px;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;height:auto;display:block;}
a{color:var(--ink);text-decoration:none;transition:color .2s var(--ease);}
a:hover{color:var(--accent);}
button,input,select,textarea{font-family:inherit;font-size:inherit;color:inherit;}
h1,h2,h3,h4{margin:0;font-weight:800;line-height:1.2;}
p{margin:0;}
ul,ol{margin:0;padding:0;list-style:none;}
:focus-visible{outline:2px solid var(--accent);outline-offset:2px;}
.container{width:100%;padding-left:20px;padding-right:20px;margin-right:auto;margin-left:auto;}
@media (min-width:768px){.container{padding-left:32px;padding-right:32px;}}
@media (min-width:1200px){.container{max-width:1240px;}}
.section{padding:64px 0;}
@media (min-width:992px){.section{padding:104px 0;}}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:12px;letter-spacing:.08em;font-weight:700;color:var(--ink);
  background:var(--ink-soft);border-radius:999px;padding:6px 14px;
}
.eyebrow.on-dark{background:rgba(255,255,255,.12);color:#fff;}
.section-head{margin-bottom:40px;}
.section-head h2{font-size:clamp(26px,3vw,40px);font-weight:800;letter-spacing:-.01em;font-family:var(--font-serif);}
.section-head p{margin-top:14px;color:var(--muted);font-size:16px;max-width:680px;}
.text-accent{color:var(--accent);}

/* ===== 按钮 ===== */
.btn{
  --bs-btn-focus-box-shadow:none;
  border-radius:var(--radius-btn);
  font-weight:700;
  font-size:15px;
  padding:0 24px;
  min-height:52px;
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:10px;
  border:1.5px solid transparent;
  transition:all .2s var(--ease);
}
.btn-primary{
  background:var(--accent);
  border-color:var(--accent);
  color:#fff;
}
.btn-primary:hover,.btn-primary:focus-visible{
  background:var(--accent-dark);
  border-color:var(--accent-dark);
  color:#fff;
  transform:translateY(-1px);
  box-shadow:0 12px 26px -12px rgba(164,78,31,.7);
}
.btn-primary:active{transform:translateY(0);}
.btn-primary .btn-arrow{display:inline-flex;transition:transform .2s var(--ease);}
.btn-primary:hover .btn-arrow{transform:translateX(4px);}
.btn-ghost{
  background:var(--surface);
  border-color:rgba(17,75,67,.45);
  color:var(--ink);
}
.btn-ghost:hover,.btn-ghost:focus-visible{
  background:var(--ink-soft);
  border-color:var(--ink);
  color:var(--ink);
  transform:translateY(-1px);
}
.btn-link-arrow{
  display:inline-flex;align-items:center;gap:8px;
  font-weight:700;color:var(--ink);
  border-bottom:1.5px solid rgba(17,75,67,.35);
  padding-bottom:2px;
}
.btn-link-arrow:hover{color:var(--accent);border-color:var(--accent);}
.btn-link-arrow i{transition:transform .2s var(--ease);}
.btn-link-arrow:hover i{transform:translateX(4px);}

/* ===== 顶部导航 ===== */
.site-header{
  position:fixed;top:0;left:0;right:0;z-index:1040;
  padding:16px 0;
  transition:padding .25s var(--ease);
}
.site-header.is-scrolled{padding:8px 0;}
.nav-panel{
  display:flex;align-items:center;gap:18px;
  background:rgba(255,255,255,.96);
  border:1px solid var(--line);
  border-radius:var(--radius-lg);
  box-shadow:var(--shadow-2);
  padding:10px 14px;
  transition:box-shadow .25s var(--ease),background .25s var(--ease);
}
.site-header.is-scrolled .nav-panel{
  box-shadow:var(--shadow-3);
  background:rgba(255,255,255,.92);
  backdrop-filter:blur(10px);
}
.brand{display:flex;align-items:center;gap:12px;flex-shrink:0;}
.brand-mark{
  width:42px;height:42px;border-radius:12px;
  background:linear-gradient(140deg,var(--ink) 0%,var(--ink-light) 100%);
  color:#fff;font-weight:800;font-size:19px;
  display:inline-flex;align-items:center;justify-content:center;
  font-family:var(--font-serif);
  box-shadow:0 8px 18px -10px rgba(17,75,67,.9);
}
.brand-text{display:flex;flex-direction:column;line-height:1.25;}
.brand-name{font-size:16px;font-weight:800;color:var(--text);letter-spacing:.01em;}
.brand-sub{font-size:11px;color:var(--muted);letter-spacing:.06em;}
.nav-links{display:flex;align-items:center;gap:8px;margin-left:auto;}
.nav-chip{
  display:inline-flex;align-items:center;gap:8px;
  min-height:44px;padding:0 16px;border-radius:12px;
  font-size:14px;font-weight:600;color:var(--text);
  border:1px solid transparent;
  transition:all .2s var(--ease);
}
.nav-chip i{color:var(--ink);font-size:14px;transition:color .2s var(--ease);}
.nav-chip:hover{background:var(--ink-soft);border-color:rgba(17,75,67,.18);color:var(--ink);}
.nav-chip.active{background:var(--ink);border-color:var(--ink);color:#fff;}
.nav-chip.active i{color:#fff;}
.nav-actions{display:flex;align-items:center;gap:12px;margin-left:auto;}
.nav-links + .nav-actions{margin-left:8px;}
.nav-actions .btn{min-height:44px;padding:0 20px;font-size:14px;}
.nav-toggle{
  width:44px;height:44px;border-radius:12px;
  border:1px solid var(--line);background:var(--surface);
  color:var(--ink);display:inline-flex;align-items:center;justify-content:center;
  font-size:18px;
}
.nav-toggle:hover{background:var(--ink-soft);border-color:rgba(17,75,67,.3);}
@media (max-width:575px){.nav-actions .btn{display:none;}}
.offcanvas.mobile-nav{background:var(--bg);border:none;border-radius:0;}
.mobile-nav .offcanvas-header{border-bottom:1px solid var(--line);padding:18px 20px;}
.mobile-nav .offcanvas-title{font-size:16px;font-weight:800;}
.mobile-nav .btn-close{--bs-btn-close-focus-shadow:none;border-radius:10px;}
.mobile-nav .offcanvas-body{padding:20px;display:flex;flex-direction:column;gap:16px;}
.mobile-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:12px;}
.mobile-chip{
  display:flex;flex-direction:column;align-items:flex-start;gap:10px;
  padding:16px;border-radius:var(--radius-sm);
  background:var(--surface);border:1px solid var(--line);
  font-size:14px;font-weight:700;color:var(--text);min-height:96px;
}
.mobile-chip i{font-size:17px;color:var(--ink);}
.mobile-chip.active{background:var(--ink);border-color:var(--ink);color:#fff;}
.mobile-chip.active i{color:#fff;}

/* ===== 首屏 ===== */
.hero-card{
  position:relative;overflow:hidden;
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--radius-lg);
  box-shadow:var(--shadow-2);
  padding:52px 24px 40px;
  text-align:center;
}
@media (min-width:992px){.hero-card{padding:72px 72px 56px;}}
.hero-card::before{
  content:"";position:absolute;inset:0;
  background:url(/assets/images/backpic/back-2.png) center/cover no-repeat;
  opacity:.15;
}
.hero-card::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(255,255,255,.88) 0%,rgba(247,245,240,.95) 100%);
}
.hero-card > *{position:relative;z-index:2;}
.hero-card h1{
  font-family:var(--font-serif);
  font-size:clamp(32px,5vw,56px);
  font-weight:900;line-height:1.14;letter-spacing:-.02em;
  margin:20px auto 0;max-width:900px;
}
.hero-sub{
  margin:20px auto 0;max-width:680px;
  font-size:17px;color:var(--muted);
}
.hero-cta{display:flex;flex-wrap:wrap;gap:14px;justify-content:center;margin-top:32px;}
@media (max-width:575px){.hero-cta .btn{width:100%;}}
.pill-tabs{
  display:flex;flex-wrap:wrap;gap:10px;justify-content:center;
  margin-top:36px;padding-top:32px;border-top:1px solid var(--line-weak);
}
.pill-tabs .nav-link{
  border:1.5px solid var(--line);
  border-radius:12px;
  background:var(--surface);
  color:var(--text);
  font-size:14px;font-weight:700;
  padding:11px 20px;
  transition:all .2s var(--ease);
}
.pill-tabs .nav-link:hover{border-color:rgba(17,75,67,.4);color:var(--ink);background:var(--ink-soft);}
.pill-tabs .nav-link.active{background:var(--ink-soft);border-color:var(--ink);color:var(--ink);}
.hero-meta{
  display:flex;flex-wrap:wrap;justify-content:center;gap:12px 28px;
  margin-top:26px;font-size:13px;color:var(--muted);
}
.hero-meta span{display:inline-flex;align-items:center;gap:8px;}
.hero-meta i{color:var(--ink);}

/* ===== 横向滚动卡片带 ===== */
.rail-head{display:flex;flex-wrap:wrap;align-items:flex-end;justify-content:space-between;gap:20px;margin-bottom:32px;}
.rail-scroller{
  display:flex;gap:24px;
  overflow-x:auto;overflow-y:hidden;
  padding:6px 6px 22px;
  scroll-snap-type:x mandatory;
  scrollbar-width:thin;
  scrollbar-color:rgba(17,75,67,.3) transparent;
}
.rail-scroller::-webkit-scrollbar{height:8px;}
.rail-scroller::-webkit-scrollbar-track{background:var(--line-weak);border-radius:999px;}
.rail-scroller::-webkit-scrollbar-thumb{background:rgba(17,75,67,.3);border-radius:999px;}
.rail-card{
  flex:0 0 clamp(270px,30%,340px);
  scroll-snap-align:start;
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--radius);
  box-shadow:var(--shadow-2);
  padding:28px 24px;
  transition:transform .2s var(--ease),box-shadow .2s var(--ease),border-color .2s var(--ease);
}
.rail-card:hover{transform:translateY(-2px);border-color:rgba(17,75,67,.22);box-shadow:var(--shadow-3);}
.rail-num{
  display:inline-block;font-size:32px;font-weight:800;color:var(--ink);
  font-variant-numeric:tabular-nums;line-height:1;letter-spacing:-.02em;
}
.rail-card h3{font-size:20px;font-weight:700;line-height:1.35;margin-top:14px;}
.rail-card p{margin-top:12px;font-size:15px;line-height:1.75;color:var(--muted);}
.tag-row{display:flex;flex-wrap:wrap;gap:8px;margin-top:18px;}
.tag{
  display:inline-block;font-size:12px;letter-spacing:.06em;font-weight:600;
  color:var(--ink);background:var(--ink-soft);
  border-radius:999px;padding:5px 12px;
}
.rail-hint{margin-top:6px;font-size:13px;color:var(--muted);display:inline-flex;align-items:center;gap:8px;}
.scene-card{
  flex:0 0 clamp(250px,26%,300px);
  scroll-snap-align:start;
  background:var(--surface);
  border:1px solid var(--line-weak);
  border-radius:var(--radius-sm);
  padding:24px 22px;
  transition:transform .2s var(--ease),border-color .2s var(--ease),box-shadow .2s var(--ease);
}
.scene-card:hover{transform:translateY(-2px);border-color:rgba(17,75,67,.22);box-shadow:var(--shadow-2);}
.scene-icon{
  width:46px;height:46px;border-radius:12px;
  background:var(--ink-soft);color:var(--ink);
  display:inline-flex;align-items:center;justify-content:center;font-size:18px;
}
.scene-card h3{font-size:18px;font-weight:700;margin-top:18px;line-height:1.4;}
.scene-card p{margin-top:10px;font-size:14.5px;line-height:1.7;color:var(--muted);}
.scene-note{
  display:inline-block;margin-top:16px;font-size:12px;letter-spacing:.05em;
  color:var(--warn);background:rgba(138,106,31,.1);border-radius:999px;padding:4px 12px;font-weight:700;
}

/* ===== 图文交错 ===== */
.split-row{
  display:grid;grid-template-columns:1fr;gap:32px;align-items:center;
  padding:40px 0;border-bottom:1px solid var(--line-weak);
}
.split-row:last-child{border-bottom:none;padding-bottom:0;}
@media (min-width:992px){
  .split-row{grid-template-columns:1fr 1fr;gap:56px;padding:56px 0;}
  .split-row.reverse .split-media{order:2;}
}
.split-media{position:relative;border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow-2);}
.split-media img{width:100%;aspect-ratio:16/9;object-fit:cover;}
.split-media::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(18,33,30,0) 40%,rgba(18,33,30,.55) 100%);
}
.split-media .media-badge{
  position:absolute;left:20px;bottom:18px;z-index:2;
  font-size:12px;letter-spacing:.06em;font-weight:700;color:#fff;
  background:rgba(255,255,255,.16);border:1px solid rgba(255,255,255,.28);
  border-radius:999px;padding:6px 14px;backdrop-filter:blur(4px);
}
.split-body h2{font-size:clamp(24px,2.5vw,32px);font-weight:800;margin-top:16px;font-family:var(--font-serif);}
.split-body p{margin-top:16px;color:var(--muted);font-size:16px;}
.dot-list{margin-top:22px;display:flex;flex-direction:column;gap:12px;}
.dot-list li{display:flex;gap:12px;font-size:15px;line-height:1.7;}
.dot-list li i{color:var(--ink);margin-top:6px;font-size:13px;}

/* ===== 编号要点清单 ===== */
.number-list{display:grid;grid-template-columns:1fr;gap:20px;}
@media (min-width:768px){.number-list{grid-template-columns:1fr 1fr;gap:24px;}}
.number-list li{
  display:flex;gap:18px;
  background:var(--surface);border:1px solid var(--line);
  border-radius:var(--radius);padding:26px 24px;
  box-shadow:var(--shadow-1);
  transition:transform .2s var(--ease),box-shadow .2s var(--ease),border-color .2s var(--ease);
}
.number-list li:hover{transform:translateY(-2px);border-color:rgba(17,75,67,.22);box-shadow:var(--shadow-2);}
.number-list .num{
  font-size:28px;font-weight:800;line-height:1;color:var(--ink);
  font-variant-numeric:tabular-nums;flex-shrink:0;
  background:var(--ink-soft);border-radius:10px;padding:10px 12px;
}
.number-list h3{font-size:18px;font-weight:700;line-height:1.4;}
.number-list p{margin-top:10px;font-size:15px;line-height:1.75;color:var(--muted);}

/* ===== FAQ ===== */
.faq-wrap{
  background:var(--surface);border:1px solid var(--line);
  border-radius:var(--radius-lg);padding:12px 24px;box-shadow:var(--shadow-2);
}
@media (min-width:992px){.faq-wrap{padding:16px 36px;}}
.accordion-item{background:transparent;border:none;border-bottom:1px solid var(--line-weak);}
.accordion-item:last-child{border-bottom:none;}
.accordion-button{
  background:transparent;color:var(--text);
  font-size:17px;font-weight:700;line-height:1.5;
  padding:24px 48px 24px 0;border:none;box-shadow:none;
  --bs-accordion-btn-focus-box-shadow:none;
}
.accordion-button:not(.collapsed){color:var(--ink);background:transparent;box-shadow:none;}
.accordion-button::after{
  display:none;
}
.accordion-button .faq-icon{
  position:absolute;right:0;top:50%;transform:translateY(-50%);
  width:32px;height:32px;border-radius:50%;
  border:1.5px solid var(--line);color:var(--ink);
  display:inline-flex;align-items:center;justify-content:center;
  font-size:13px;transition:all .25s var(--ease);
}
.accordion-button:not(.collapsed) .faq-icon{
  background:var(--ink);border-color:var(--ink);color:#fff;transform:translateY(-50%) rotate(180deg);
}
.accordion-button:hover .faq-icon{border-color:var(--ink);}
.accordion-body{
  background:var(--bg);border-radius:12px;
  padding:20px 22px;margin-bottom:24px;
  font-size:15px;line-height:1.8;color:var(--muted);
}

/* ===== CTA 条带 ===== */
.cta-band{
  position:relative;overflow:hidden;
  background:var(--dark);
  padding:72px 0 56px;
  margin-top:24px;
}
.cta-band::before{
  content:"";position:absolute;inset:0;
  background:url(/assets/images/backpic/back-1.png) center/cover no-repeat;
  opacity:.14;
}
.cta-band > .container{position:relative;z-index:2;}
.cta-band h2{color:#fff;font-size:clamp(26px,3vw,38px);font-weight:800;font-family:var(--font-serif);}
.cta-band .lead-text{margin-top:16px;color:rgba(255,255,255,.72);font-size:16px;max-width:520px;}
.cta-points{margin-top:28px;display:flex;flex-direction:column;gap:14px;}
.cta-points li{display:flex;gap:12px;color:rgba(255,255,255,.86);font-size:15px;line-height:1.7;}
.cta-points i{color:var(--accent);margin-top:6px;font-size:13px;}
.cta-form-card{
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--radius-lg);
  box-shadow:var(--shadow-3);
  padding:32px 26px;
}
@media (min-width:992px){
  .cta-form-card{padding:40px 38px;margin-top:-96px;}
}
.form-label{font-size:14px;font-weight:600;margin-bottom:8px;color:var(--text);}
.form-label .req{color:var(--accent);margin-left:2px;}
.form-control,.form-select{
  min-height:48px;border-radius:var(--radius-btn);
  border:1px solid var(--line);background:var(--surface);
  padding:10px 14px;font-size:15px;
  transition:border-color .2s var(--ease),box-shadow .2s var(--ease);
}
textarea.form-control{min-height:104px;line-height:1.7;}
.form-control:focus,.form-select:focus{
  border-color:var(--ink);
  box-shadow:0 0 0 3px rgba(17,75,67,.12);
}
.form-control::placeholder{color:#9AA39D;}
.form-check-input{width:18px;height:18px;border:1px solid var(--line);border-radius:6px;margin-top:4px;}
.form-check-input:checked{background-color:var(--ink);border-color:var(--ink);}
.form-check-input:focus{box-shadow:0 0 0 3px rgba(17,75,67,.12);border-color:var(--ink);}
.form-check-label{font-size:13px;color:var(--muted);line-height:1.65;}
.form-note{margin-top:14px;font-size:13px;color:var(--muted);}
.form-tip{margin-top:6px;font-size:13px;color:var(--err);}

/* ===== 页脚 ===== */
.site-footer{
  background:var(--dark);
  color:rgba(255,255,255,.72);
  padding:64px 0 32px;
  font-size:14px;
}
.footer-grid{display:grid;grid-template-columns:1fr;gap:32px;}
@media (min-width:768px){.footer-grid{grid-template-columns:repeat(2,1fr);}}
@media (min-width:992px){.footer-grid{grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:32px;}}
.footer-brand{display:flex;align-items:center;gap:12px;}
.footer-brand .brand-name{color:#fff;}
.footer-brand .brand-sub{color:rgba(255,255,255,.55);}
.footer-about{margin-top:18px;font-size:14px;line-height:1.8;color:rgba(255,255,255,.66);max-width:360px;}
.footer-title{font-size:14px;font-weight:700;color:var(--ink-soft);letter-spacing:.04em;margin-bottom:16px;}
.footer-links{display:flex;flex-direction:column;gap:12px;}
.footer-links a{
  color:rgba(255,255,255,.72);font-size:14px;
  transition:color .2s var(--ease),transform .2s var(--ease);
}
.footer-links a:hover{color:#fff;transform:translateX(2px);}
.footer-form .form-control{
  background:rgba(255,255,255,.06);
  border:1px solid rgba(255,255,255,.16);
  color:#fff;
}
.footer-form .form-control::placeholder{color:rgba(255,255,255,.45);}
.footer-form .form-control:focus{
  background:rgba(255,255,255,.1);
  border-color:rgba(255,255,255,.5);
  box-shadow:0 0 0 3px rgba(255,255,255,.1);
}
.footer-bottom{
  margin-top:48px;padding-top:24px;
  border-top:1px solid rgba(255,255,255,.1);
  display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;
  font-size:13px;color:rgba(255,255,255,.55);
}

/* ===== 动效 ===== */
.reveal{opacity:0;transform:translateY(16px);transition:opacity .6s var(--ease),transform .6s var(--ease);}
.reveal.is-visible{opacity:1;transform:none;}
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto;}
  .reveal{opacity:1;transform:none;transition:none;}
  *,*::before,*::after{animation:none!important;transition:none!important;}
}