/* roulang page: index */
:root{
  --brand-700:#0F4A43;
  --brand-600:#14655B;
  --brand-100:#E4F0EC;
  --accent-600:#C97A2B;
  --accent-100:#FBEEE0;
  --bg:#F7F4EE;
  --surface:#FFFFFF;
  --ink-900:#12211F;
  --ink-700:#2E423F;
  --ink-500:#5A6B67;
  --line:#E4DFD5;
  --ring:rgba(20,101,91,.28);
  --r-sm:8px;
  --r-md:12px;
  --r-lg:18px;
  --r-pill:999px;
  --sh-1:0 1px 2px rgba(18,33,31,.05),0 8px 24px -12px rgba(18,33,31,.18);
  --sh-2:0 12px 32px -14px rgba(18,33,31,.28);
  --bs-primary:var(--brand-600);
  --bs-body-color:var(--ink-700);
  --bs-body-bg:var(--bg);
  --bs-border-color:var(--line);
  --bs-link-color:var(--brand-600);
  --bs-link-hover-color:var(--accent-600);
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:96px}
body{
  margin:0;
  font-family:"PingFang SC","HarmonyOS Sans SC","Source Han Sans SC","Noto Sans SC","Microsoft YaHei",sans-serif;
  font-size:17px;
  line-height:1.9;
  color:var(--ink-700);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
  padding-bottom:0;
}
img{max-width:100%;display:block}
a{color:var(--brand-600);text-decoration:none;transition:color .18s ease}
a:hover{color:var(--accent-600)}
h1,h2,h3,h4{color:var(--ink-900);font-weight:700;line-height:1.35;margin:0}
h1{font-size:clamp(30px,4.4vw,46px);letter-spacing:-.01em}
h2{font-size:clamp(24px,3vw,32px)}
h3{font-size:20px}
h4{font-size:17px}
p{margin:0 0 1.15em}
ul{margin:0;padding:0;list-style:none}
button,input,textarea,select{font-family:inherit;font-size:inherit}
:focus-visible{outline:3px solid var(--ring);outline-offset:2px}
.container-x{max-width:1200px;margin:0 auto;padding:0 20px}
.reading{max-width:820px}
.section{padding:88px 0}
.section-alt{background:var(--surface)}
.section-line{border-top:1px solid var(--line)}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;font-weight:600;letter-spacing:.04em;
  color:var(--brand-700);background:var(--brand-100);
  border-radius:var(--r-pill);padding:6px 14px;
}
.eyebrow i{font-size:12px}
.lead{font-size:17px;color:var(--ink-500);line-height:1.85}
.muted{color:var(--ink-500);font-size:14px}

/* 顶部细通栏 */
.topbar{
  background:var(--brand-700);color:#DCEBE6;font-size:13px;line-height:36px;
  position:relative;z-index:1040;
}
.topbar .container-x{display:flex;align-items:center;gap:16px;justify-content:space-between}
.topbar .tb-left{display:flex;align-items:center;gap:8px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.topbar .tb-right{display:flex;align-items:center;gap:18px}
.topbar a{color:#DCEBE6;opacity:.85}
.topbar a:hover{color:#fff;opacity:1}
.topbar .tb-close{background:none;border:0;color:#DCEBE6;opacity:.7;cursor:pointer;padding:0 4px}
.topbar .tb-close:hover{opacity:1}
@media(max-width:768px){.topbar .tb-right{display:none}}

/* 导航 */
.site-header{
  position:sticky;top:0;z-index:1030;background:var(--surface);
  border-bottom:1px solid var(--line);transition:box-shadow .18s ease;
}
.site-header.is-stuck{box-shadow:var(--sh-1)}
.nav-row{
  display:grid;grid-template-columns:auto 1fr auto;align-items:center;
  gap:24px;min-height:72px;
}
.brand{display:flex;align-items:center;gap:10px;font-weight:700;color:var(--brand-700);font-size:19px;white-space:nowrap}
.brand:hover{color:var(--brand-700)}
.brand-mark{
  width:34px;height:34px;border-radius:50%;flex:0 0 34px;
  background:conic-gradient(from 210deg,var(--brand-600),var(--brand-700),var(--brand-600));
  display:grid;place-items:center;color:#fff;font-size:16px;font-weight:700;
  box-shadow:inset 0 0 0 2px rgba(255,255,255,.35);
}
.chip-nav{
  display:flex;gap:10px;overflow-x:auto;scrollbar-width:none;
  padding:6px 2px;-ms-overflow-style:none;
}
.chip-nav::-webkit-scrollbar{display:none}
.chip{
  flex:0 0 auto;display:inline-flex;align-items:center;gap:7px;
  height:38px;padding:0 18px;border-radius:var(--r-pill);
  border:1px solid var(--line);background:#fff;color:var(--ink-700);
  font-size:14px;font-weight:500;white-space:nowrap;transition:all .18s ease;
}
.chip:hover{border-color:var(--brand-600);color:var(--brand-600);background:var(--brand-100)}
.chip.active{background:var(--brand-600);border-color:var(--brand-600);color:#fff;font-weight:600}
.chip.active:hover{color:#fff;background:var(--brand-700)}
.nav-cta{display:flex;align-items:center;gap:12px;margin-left:24px}
.btn-nav{
  display:inline-flex;align-items:center;gap:8px;height:44px;padding:0 22px;
  border-radius:var(--r-pill);background:var(--brand-600);color:#fff;
  font-size:15px;font-weight:600;border:0;transition:all .18s ease;
}
.btn-nav:hover{background:var(--brand-700);color:#fff;transform:translateY(-1px);box-shadow:var(--sh-2)}
.hamburger{
  display:none;width:44px;height:44px;border:1px solid var(--line);border-radius:var(--r-md);
  background:#fff;color:var(--ink-900);font-size:18px;
}
@media(max-width:1200px){.nav-cta{margin-left:8px}.btn-nav{padding:0 16px}}
@media(max-width:992px){
  .nav-row{grid-template-columns:auto auto;justify-content:space-between;min-height:64px}
  .chip-nav,.nav-cta{display:none}
  .hamburger{display:grid;place-items:center}
}
.offcanvas{background:var(--surface)}
.offcanvas .drawer-chip{
  display:block;padding:14px 16px;border:1px solid var(--line);border-radius:var(--r-md);
  margin-bottom:10px;color:var(--ink-700);font-weight:500;
}
.offcanvas .drawer-chip.active{background:var(--brand-600);color:#fff;border-color:var(--brand-600)}
.drawer-cta{display:block;text-align:center;margin-top:18px;background:var(--brand-600);color:#fff;border-radius:var(--r-md);padding:14px;font-weight:600}
.drawer-cta:hover{color:#fff;background:var(--brand-700)}

/* 按钮 */
.btn-main,.btn-ghost,.btn-line{
  display:inline-flex;align-items:center;justify-content:center;gap:9px;
  height:48px;padding:0 28px;border-radius:var(--r-md);
  font-size:16px;font-weight:600;border:1px solid transparent;cursor:pointer;
  transition:all .18s ease;
}
.btn-main{background:var(--brand-600);color:#fff}
.btn-main:hover{background:var(--brand-700);color:#fff;transform:translateY(-1px);box-shadow:var(--sh-2)}
.btn-line{background:transparent;color:var(--brand-700);border-color:var(--brand-600)}
.btn-line:hover{background:var(--brand-100);color:var(--brand-700)}
.btn-ghost{background:none;border:0;padding:0;height:auto;color:var(--brand-600)}
.btn-ghost i{transition:transform .18s ease}
.btn-ghost:hover{color:var(--accent-600)}
.btn-ghost:hover i{transform:translateX(4px)}

/* Hero */
.hero{
  position:relative;overflow:hidden;
  background:
    radial-gradient(900px 420px at 88% -6%, rgba(20,101,91,.10), transparent 62%),
    radial-gradient(620px 320px at 4% 96%, rgba(201,122,43,.10), transparent 60%),
    var(--bg);
  border-bottom:1px solid var(--line);
}
.hero::before{
  content:"";position:absolute;inset:0;
  background-image:linear-gradient(rgba(18,33,31,.05) 1px,transparent 1px),
                   linear-gradient(90deg,rgba(18,33,31,.05) 1px,transparent 1px);
  background-size:56px 56px;pointer-events:none;
}
.hero-inner{position:relative;display:grid;grid-template-columns:6fr 6fr;gap:48px;align-items:center;padding:72px 0 84px;min-height:78vh}
.hero h1{margin:18px 0 16px}
.hero-sub{font-size:19px;color:var(--ink-700);font-weight:600;margin-bottom:8px}
.hero-desc{color:var(--ink-500);font-size:16px;max-width:520px;margin-bottom:26px}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:30px}
.hero-points{display:grid;gap:12px}
.hero-points li{display:flex;align-items:center;gap:12px;font-size:15px;color:var(--ink-700)}
.hero-points i{color:var(--brand-600);width:20px;text-align:center}
.hero-media{position:relative}
.hero-media .main-shot{
  width:100%;aspect-ratio:16/10;object-fit:cover;border-radius:var(--r-lg);
  border:1px solid var(--line);box-shadow:var(--sh-1);
}
.hero-media .float-card{
  position:absolute;right:-10px;bottom:-28px;width:38%;background:var(--surface);
  border:1px solid var(--line);border-radius:var(--r-md);box-shadow:var(--sh-2);
  padding:14px;display:flex;gap:10px;align-items:center;
}
.hero-media .float-card img{width:52px;height:52px;border-radius:var(--r-sm);object-fit:cover}
.hero-media .float-card strong{display:block;font-size:14px;color:var(--ink-900)}
.hero-media .float-card span{font-size:12px;color:var(--ink-500)}
@media(max-width:992px){
  .hero-inner{grid-template-columns:1fr;gap:36px;padding:48px 0 64px;min-height:auto}
  .hero-media .float-card{position:static;width:100%;margin-top:16px}
}
@media(max-width:768px){
  .hero-sub{font-size:17px}
  .hero-actions .btn-main,.hero-actions .btn-line{width:100%}
}

/* 数据条 */
.statbar{background:var(--surface);border-bottom:1px solid var(--line)}
.statbar .row-grid{display:grid;grid-template-columns:repeat(4,1fr);}
.stat-item{padding:30px 22px;border-left:1px solid var(--line);text-align:left}
.stat-item:first-child{border-left:0}
.stat-num{font-size:32px;font-weight:700;color:var(--accent-600);line-height:1.2}
.stat-label{font-size:14px;color:var(--ink-500);margin-top:4px}
@media(max-width:768px){
  .statbar .row-grid{grid-template-columns:repeat(2,1fr)}
  .stat-item{border-left:0;border-top:1px solid var(--line);padding:20px 14px}
  .stat-item:nth-child(-n+2){border-top:0}
  .stat-item:nth-child(even){border-left:1px solid var(--line)}
}

/* 卖点区 */
.value-wrap{display:grid;grid-template-columns:3fr 9fr;gap:48px}
.value-sticky{position:sticky;top:112px;align-self:start}
.value-cols{display:grid;grid-template-columns:1fr 1fr;gap:24px}
.value-cols .col-b{margin-top:40px}
.vcard{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-lg);
  padding:26px;transition:all .18s ease;height:100%;
}
.vcard:hover{transform:translateY(-2px);box-shadow:var(--sh-2);border-color:#D6D0C4}
.vcard .num{
  display:inline-grid;place-items:center;width:34px;height:34px;border-radius:6px;
  background:var(--accent-100);color:var(--accent-600);font-weight:700;font-size:14px;margin-bottom:14px;
}
.vcard h3{margin-bottom:8px}
.vcard p{margin:0;font-size:15px;color:var(--ink-500);line-height:1.8}
@media(max-width:992px){
  .value-wrap{grid-template-columns:1fr;gap:32px}
  .value-sticky{position:static}
  .value-cols .col-b{margin-top:0}
}
@media(max-width:576px){.value-cols{grid-template-columns:1fr}}

/* 演示区 */
.demo-grid{display:grid;grid-template-columns:7fr 5fr;gap:44px;align-items:center}
.demo-shot{position:relative;border-radius:var(--r-lg);overflow:hidden;border:1px solid var(--line);box-shadow:var(--sh-1)}
.demo-shot img{width:100%;aspect-ratio:16/10;object-fit:cover}
.demo-shot .tag-float{
  position:absolute;left:16px;top:16px;background:rgba(255,255,255,.94);
  border-radius:var(--r-pill);padding:6px 14px;font-size:13px;font-weight:600;color:var(--brand-700);
}
.steps{counter-reset:step}
.steps li{
  display:grid;grid-template-columns:36px 1fr;gap:16px;
  padding:16px 0;border-bottom:1px dashed var(--line);
}
.steps li:last-child{border-bottom:0}
.steps .snum{
  width:36px;height:36px;border-radius:var(--r-sm);background:var(--brand-100);
  color:var(--brand-700);display:grid;place-items:center;font-weight:700;font-size:15px;
}
.steps h4{margin-bottom:4px}
.steps p{margin:0;font-size:15px;color:var(--ink-500);line-height:1.8}
@media(max-width:992px){.demo-grid{grid-template-columns:1fr;gap:28px}}

/* 场景横滚 */
.scroll-head{display:flex;align-items:flex-end;justify-content:space-between;gap:20px;margin-bottom:26px}
.scroll-nav{display:flex;gap:10px}
.scroll-nav button{
  width:44px;height:44px;border-radius:var(--r-pill);border:1px solid var(--line);
  background:#fff;color:var(--ink-700);transition:all .18s ease;
}
.scroll-nav button:hover{border-color:var(--brand-600);color:var(--brand-600);background:var(--brand-100)}
.scroll-track{
  display:flex;gap:20px;overflow-x:auto;scroll-snap-type:x mandatory;
  padding-bottom:12px;scrollbar-width:none;
}
.scroll-track::-webkit-scrollbar{display:none}
.scene-card{
  flex:0 0 340px;scroll-snap-align:start;background:var(--surface);
  border:1px solid var(--line);border-radius:var(--r-lg);padding:24px;transition:all .18s ease;
}
.scene-card:hover{transform:translateY(-2px);box-shadow:var(--sh-2)}
.scene-card .who{display:flex;align-items:center;gap:12px;margin-bottom:14px}
.scene-card .avatar{
  width:42px;height:42px;border-radius:50%;background:var(--brand-100);
  display:grid;place-items:center;color:var(--brand-700);font-weight:700;
}
.scene-card .who strong{display:block;font-size:15px;color:var(--ink-900)}
.scene-card .who span{font-size:13px;color:var(--ink-500)}
.scene-card p{font-size:15px;color:var(--ink-700);margin:0 0 14px}
.scene-tags{display:flex;flex-wrap:wrap;gap:8px}
.tag{
  display:inline-block;font-size:13px;padding:4px 12px;border-radius:var(--r-pill);
  background:var(--accent-100);color:var(--accent-600);font-weight:500;
}
.tag-line{background:var(--brand-100);color:var(--brand-700)}
@media(max-width:576px){.scene-card{flex:0 0 82%}}

/* 对比区 */
.compare-grid{display:grid;grid-template-columns:1fr 1fr;gap:24px;align-items:stretch}
.plan{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-lg);
  padding:28px;display:flex;flex-direction:column;
}
.plan.recommend{border:2px solid var(--brand-600);box-shadow:var(--sh-1);position:relative}
.plan .badge-recommend{
  position:absolute;top:-13px;left:28px;background:var(--accent-600);color:#fff;
  font-size:13px;font-weight:600;border-radius:var(--r-pill);padding:4px 14px;
}
.plan h3{margin-bottom:6px}
.plan .plan-sub{font-size:14px;color:var(--ink-500);margin-bottom:18px}
.plan ul{display:grid;gap:12px;margin-bottom:24px}
.plan ul li{display:flex;gap:10px;font-size:15px;color:var(--ink-700);line-height:1.7}
.plan ul li i{color:var(--brand-600);margin-top:6px;font-size:13px}
.plan .plan-foot{margin-top:auto}
.plan-note{text-align:center;font-size:14px;color:var(--ink-500);margin-top:20px}
@media(max-width:768px){.compare-grid{grid-template-columns:1fr}}

/* 资讯区 */
.news-head{display:flex;align-items:flex-end;justify-content:space-between;gap:20px;margin-bottom:30px}
.news-hero-card{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-lg);
  overflow:hidden;height:100%;display:flex;flex-direction:column;transition:all .18s ease;
}
.news-hero-card:hover{transform:translateY(-2px);box-shadow:var(--sh-2)}
.news-hero-card img{width:100%;aspect-ratio:17/10;object-fit:cover}
.news-hero-card .nc-body{padding:24px;display:flex;flex-direction:column;gap:10px}
.news-hero-card h3 a{color:var(--ink-900)}
.news-hero-card h3 a:hover{color:var(--brand-600)}
.news-hero-card p{font-size:15px;color:var(--ink-500);margin:0}
.news-list{display:grid;gap:16px}
.news-item{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-lg);
  padding:20px 22px;transition:all .18s ease;
}
.news-item:hover{transform:translateY(-2px);box-shadow:var(--sh-2);border-color:#D6D0C4}
.news-item h4 a{color:var(--ink-900);display:block}
.news-item h4 a:hover{color:var(--brand-600)}
.news-item .ni-meta{display:flex;align-items:center;gap:12px;margin-top:10px;font-size:13px;color:var(--ink-500)}
.news-item p{font-size:14px;color:var(--ink-500);margin:8px 0 0;overflow:hidden;display:-webkit-box;-webkit-line-clamp:1;-webkit-box-orient:vertical}
.meta-date{font-size:13px;color:var(--ink-500)}
.clamp-2{overflow:hidden;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical}
.empty-box{
  border:1px dashed #CFC8BA;border-radius:var(--r-lg);background:var(--surface);
  padding:48px 24px;text-align:center;color:var(--ink-500);
}
.empty-box i{font-size:30px;color:var(--brand-600);display:block;margin-bottom:12px}
.empty-box p{margin:0 0 6px;font-size:15px}
@media(max-width:992px){.news-head{flex-direction:column;align-items:flex-start}}

/* FAQ */
.faq-wrap{display:grid;grid-template-columns:4fr 8fr;gap:48px}
.faq-side{position:sticky;top:112px;align-self:start}
.accordion-item{border:0;border-bottom:1px solid var(--line);background:transparent}
.accordion-button{
  background:transparent;color:var(--ink-700);font-weight:600;font-size:16px;
  padding:20px 44px 20px 0;box-shadow:none;border-radius:0!important;
}
.accordion-button:not(.collapsed){color:var(--ink-900);background:transparent;box-shadow:none}
.accordion-button::after{
  background-image:none;content:"\f078";font-family:"Font Awesome 6 Free";font-weight:900;
  font-size:13px;color:var(--ink-500);width:auto;height:auto;transition:transform .18s ease;
}
.accordion-button:not(.collapsed)::after{transform:rotate(180deg);color:var(--brand-600)}
.accordion-button:focus{box-shadow:none;border-color:var(--line)}
.accordion-body{padding:0 0 22px;font-size:15px;line-height:1.85;color:var(--ink-700)}
.faq-item-wrap{position:relative;padding-left:0;transition:all .18s ease}
.faq-item-wrap.active{padding-left:14px}
.faq-item-wrap.active::before{
  content:"";position:absolute;left:0;top:12px;bottom:12px;width:4px;
  background:var(--accent-600);border-radius:2px;
}
@media(max-width:992px){.faq-wrap{grid-template-columns:1fr;gap:28px}.faq-side{position:static}}

/* CTA + 表单 */
.cta-band{background:var(--brand-700);color:#E8F1EE;position:relative;overflow:hidden}
.cta-band::after{
  content:"";position:absolute;right:-120px;top:-120px;width:420px;height:420px;border-radius:50%;
  background:radial-gradient(circle,rgba(201,122,43,.22),transparent 65%);
}
.cta-grid{position:relative;display:grid;grid-template-columns:6fr 6fr;gap:44px;align-items:center}
.cta-grid h2{color:#fff}
.cta-grid p{color:#C8DCD6}
.cta-list{display:grid;gap:12px;margin-top:20px}
.cta-list li{display:flex;gap:10px;color:#D6E7E2;font-size:15px}
.cta-list i{color:var(--accent-600);margin-top:6px;font-size:13px}
.form-card{
  background:var(--surface);border-radius:var(--r-lg);box-shadow:var(--sh-2);padding:30px;
}
.form-card h3{margin-bottom:6px}
.form-card .form-hint{font-size:14px;color:var(--ink-500);margin-bottom:20px}
.form-card label{font-size:14px;font-weight:600;color:var(--ink-900);margin-bottom:6px;display:block}
.form-card .form-control{
  height:48px;border-radius:var(--r-md);border:1px solid var(--line);background:#fff;
  color:var(--ink-700);font-size:15px;padding:0 14px;
}
.form-card textarea.form-control{height:auto;min-height:104px;padding:12px 14px;line-height:1.7}
.form-card .form-control:focus{border-color:var(--brand-600);box-shadow:0 0 0 3px var(--ring)}
.form-card .err{font-size:13px;color:var(--accent-600);margin-top:6px;display:none}
.form-card .form-note{font-size:13px;color:var(--ink-500);margin:14px 0 0}
@media(max-width:992px){.cta-grid{grid-template-columns:1fr;gap:30px}}

/* 页脚 */
.site-footer{background:#0B3733;color:#B9CFC9;font-size:15px;padding-top:64px}
.site-footer h4{color:#fff;font-size:16px;margin-bottom:18px}
.footer-grid{display:grid;grid-template-columns:4fr 2.5fr 2.5fr 3fr;gap:36px;padding-bottom:44px}
.footer-brand{display:flex;align-items:center;gap:10px;color:#fff;font-weight:700;font-size:19px;margin-bottom:14px}
.footer-brand .brand-mark{box-shadow:inset 0 0 0 2px rgba(255,255,255,.25)}
.site-footer p{color:#9FBAB4;font-size:14px;line-height:1.85}
.site-footer ul li{margin-bottom:10px}
.site-footer a{color:#B9CFC9;font-size:14px}
.site-footer a:hover{color:#fff}
.footer-contact li{display:flex;gap:10px;font-size:14px;color:#B9CFC9;margin-bottom:12px}
.footer-contact i{color:var(--accent-600);margin-top:6px;font-size:13px}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.12);padding:20px 0;
  display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;font-size:13px;color:#8FADA7;
}
.footer-bottom a{color:#8FADA7;font-size:13px}
@media(max-width:992px){.footer-grid{grid-template-columns:1fr 1fr;gap:28px}}
@media(max-width:576px){.footer-grid{grid-template-columns:1fr}}

/* 浮动 CTA */
.float-cta{
  position:fixed;right:24px;bottom:32px;z-index:1020;display:flex;flex-direction:column;gap:10px;
  opacity:0;visibility:hidden;transform:translateY(12px);transition:all .3s ease;
}
.float-cta.show{opacity:1;visibility:visible;transform:translateY(0)}
.float-cta.hide{opacity:0;visibility:hidden;transform:translateY(12px)}
.float-btn{
  display:inline-flex;align-items:center;gap:0;background:var(--brand-600);color:#fff;
  border-radius:var(--r-pill);height:48px;padding:0 22px;font-size:15px;font-weight:600;
  box-shadow:var(--sh-2);white-space:nowrap;transition:all .18s ease;
}
.float-btn span{max-width:0;overflow:hidden;transition:max-width .22s ease;display:inline-block}
.float-btn:hover{background:var(--brand-700);color:#fff}
.float-btn:hover span{max-width:140px;margin-left:8px}
.float-btn i{font-size:15px}
.mobile-bar{display:none}
@media(max-width:768px){
  .float-cta{display:none}
  body{padding-bottom:56px}
  .mobile-bar{
    display:grid;grid-template-columns:1fr 1fr;gap:10px;position:fixed;left:0;right:0;bottom:0;
    background:var(--surface);border-top:1px solid var(--line);padding:8px 12px;z-index:1020;
  }
  .mobile-bar a{
    display:flex;align-items:center;justify-content:center;height:44px;border-radius:var(--r-md);
    font-size:15px;font-weight:600;
  }
  .mobile-bar .mb-main{background:var(--brand-600);color:#fff}
  .mobile-bar .mb-line{border:1px solid var(--brand-600);color:var(--brand-700)}
}
@media(prefers-reduced-motion:reduce){
  *{transition:none!important;scroll-behavior:auto!important}
}

/* roulang page: article */
:root{
  --brand-700:#0F4A43;
  --brand-600:#14655B;
  --brand-100:#E4F0EC;
  --accent-600:#C97A2B;
  --accent-100:#FBEEE0;
  --bg:#F7F4EE;
  --surface:#FFFFFF;
  --ink-900:#12211F;
  --ink-700:#2E423F;
  --ink-500:#5A6B67;
  --line:#E4DFD5;
  --ring:rgba(20,101,91,.28);
  --r-sm:8px;
  --r-md:12px;
  --r-lg:18px;
  --r-pill:999px;
  --sh-1:0 1px 2px rgba(18,33,31,.05),0 8px 24px -12px rgba(18,33,31,.18);
  --sh-2:0 12px 32px -14px rgba(18,33,31,.28);
  --t:180ms ease;
  --bs-primary:var(--brand-600);
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  background:var(--bg);
  color:var(--ink-700);
  font-family:"PingFang SC","HarmonyOS Sans SC","Source Han Sans SC","Noto Sans SC","Microsoft YaHei",sans-serif;
  font-size:17px;
  line-height:1.9;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block}
a{color:var(--brand-600);text-decoration:none;transition:color var(--t)}
a:hover{color:var(--accent-600)}
button,input,textarea{font-family:inherit;font-size:inherit}
h1,h2,h3,h4,h5{color:var(--ink-900);font-weight:700;line-height:1.35;letter-spacing:0;margin:0}
h1{font-size:clamp(30px,4.4vw,46px);letter-spacing:-.01em}
h2{font-size:clamp(24px,3vw,32px)}
h3{font-size:20px}
h4{font-size:17px}
p{margin:0 0 1.15em}
ul,ol{margin:0 0 1.15em;padding-left:1.25em}
li{margin-bottom:8px}
:focus-visible{outline:3px solid var(--ring);outline-offset:2px;border-radius:4px}

.container-x{max-width:1200px;margin:0 auto;padding:0 24px;width:100%}
.section{padding:88px 0;border-top:1px solid var(--line)}
.section.alt{background:var(--surface)}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:36px;flex-wrap:wrap}
.section-head .eyebrow{font-size:13px;font-weight:600;color:var(--accent-600);letter-spacing:.08em;margin-bottom:8px}
.section-head p{margin:8px 0 0;color:var(--ink-500);font-size:15px}
.link-arrow{font-weight:600;white-space:nowrap}
.link-arrow i{transition:transform var(--t);margin-left:6px}
.link-arrow:hover i{transform:translateX(4px)}

/* 顶部细通栏 */
.topbar{background:var(--brand-700);color:#DCEBE6;font-size:13px}
.topbar .container-x{display:flex;align-items:center;justify-content:space-between;min-height:36px;gap:16px}
.topbar a{color:#DCEBE6}
.topbar a:hover{color:#fff}
.topbar-links{display:flex;gap:18px;align-items:center}
.topbar-close{background:none;border:0;color:#DCEBE6;cursor:pointer;padding:0 4px;line-height:1}

/* 导航 */
.site-header{position:sticky;top:0;z-index:1030;background:var(--surface);border-bottom:1px solid var(--line);transition:box-shadow var(--t)}
.site-header.is-stuck{box-shadow:var(--sh-1)}
.header-inner{display:flex;align-items:center;gap:24px;min-height:72px}
.brand{display:flex;align-items:center;gap:10px;font-weight:700;color:var(--brand-700);font-size:18px;white-space:nowrap}
.brand:hover{color:var(--brand-700)}
.brand-mark{width:34px;height:34px;border-radius:50%;background:var(--brand-600);color:#fff;display:grid;place-items:center;font-size:16px;font-weight:700;flex:0 0 auto;box-shadow:inset 0 0 0 3px rgba(255,255,255,.18)}
.chip-nav{display:flex;gap:8px;overflow-x:auto;scrollbar-width:none;-ms-overflow-style:none;flex:1 1 auto;padding:4px 2px}
.chip-nav::-webkit-scrollbar{display:none}
.chip{display:inline-flex;align-items:center;height:38px;padding:0 16px;border-radius:var(--r-pill);border:1px solid var(--line);background:var(--surface);color:var(--ink-700);font-size:15px;font-weight:600;white-space:nowrap;transition:all var(--t)}
.chip:hover{border-color:var(--brand-600);color:var(--brand-600)}
.chip.active{background:var(--brand-600);border-color:var(--brand-600);color:#fff}
.header-actions{display:flex;align-items:center;gap:12px;flex:0 0 auto}
.btn-x{display:inline-flex;align-items:center;justify-content:center;gap:8px;height:48px;padding:0 28px;border-radius:var(--r-md);font-weight:600;font-size:16px;border:1px solid transparent;cursor:pointer;transition:all var(--t)}
.btn-primary-x{background:var(--brand-600);color:#fff}
.btn-primary-x:hover{background:var(--brand-700);color:#fff;transform:translateY(-1px);box-shadow:var(--sh-2)}
.btn-outline-x{background:transparent;border-color:var(--brand-600);color:var(--brand-600)}
.btn-outline-x:hover{background:var(--brand-100);color:var(--brand-700)}
.btn-ghost-x{background:none;border:0;color:var(--brand-600);padding:0;height:auto}
.btn-ghost-x i{transition:transform var(--t)}
.btn-ghost-x:hover i{transform:translateX(4px)}
.btn-sm-x{height:40px;padding:0 20px;font-size:15px;border-radius:var(--r-pill)}
.nav-toggle{display:none;width:44px;height:44px;border-radius:var(--r-md);border:1px solid var(--line);background:var(--surface);color:var(--ink-900);font-size:18px}

/* offcanvas 抽屉 */
.offcanvas{background:var(--surface)}
.offcanvas-header{border-bottom:1px solid var(--line)}
.drawer-list{display:flex;flex-direction:column;gap:10px;padding:20px 0}
.drawer-list .chip{justify-content:flex-start;height:46px;width:100%}
.drawer-cta{margin-top:auto;padding-top:16px;border-top:1px solid var(--line)}
.drawer-cta .btn-x{width:100%}

/* 面包屑 */
.crumbs{font-size:13px;color:var(--ink-500);padding:20px 0 0}
.crumbs ol{list-style:none;display:flex;flex-wrap:wrap;gap:8px;margin:0;padding:0}
.crumbs li{margin:0;display:flex;align-items:center;gap:8px}
.crumbs li+li::before{content:"/";color:var(--line)}
.crumbs a{color:var(--ink-500)}
.crumbs a:hover{color:var(--brand-600)}
.crumbs .current{color:var(--ink-700);max-width:260px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}

/* 文章头 */
.article-head-band{background:var(--surface);border-bottom:1px solid var(--line);padding:28px 0 40px}
.article-head{display:flex;gap:32px;align-items:flex-start;justify-content:space-between;flex-wrap:wrap}
.article-head-main{max-width:820px}
.article-head h1{margin:16px 0 18px;word-break:break-word}
.article-meta{display:flex;flex-wrap:wrap;gap:10px 22px;font-size:14px;color:var(--ink-500);align-items:center;padding-top:18px;border-top:1px solid var(--line)}
.article-meta i{color:var(--brand-600);margin-right:6px}
.tag-chip{display:inline-flex;align-items:center;height:28px;padding:0 12px;border-radius:var(--r-sm);background:var(--accent-100);color:var(--accent-600);font-size:13px;font-weight:600}
.share-group{display:flex;gap:10px}
.icon-btn{width:44px;height:44px;border-radius:var(--r-md);border:1px solid var(--line);background:var(--surface);color:var(--ink-700);display:grid;place-items:center;cursor:pointer;transition:all var(--t)}
.icon-btn:hover{border-color:var(--brand-600);color:var(--brand-600);background:var(--brand-100)}

/* 正文 */
.article-wrap{display:grid;grid-template-columns:minmax(0,820px) 240px;gap:56px;justify-content:center;padding:64px 0 88px}
.article-body{min-width:0;font-size:17px;line-height:1.9;color:var(--ink-700)}
.article-body p{margin:0 0 1.15em}
.article-body h2{position:relative;font-size:clamp(22px,2.4vw,28px);margin:36px 0 16px;padding-left:18px}
.article-body h2::before{content:"";position:absolute;left:0;top:.18em;width:4px;height:20px;border-radius:2px;background:var(--brand-600)}
.article-body h3{font-size:18px;margin:24px 0 12px}
.article-body h4{font-size:17px;margin:20px 0 10px}
.article-body blockquote{margin:20px 0;padding:16px 20px;border-left:3px solid var(--brand-600);background:var(--brand-100);border-radius:0 var(--r-md) var(--r-md) 0;color:var(--ink-700)}
.article-body blockquote p:last-child{margin-bottom:0}
.article-body img{border-radius:var(--r-md);margin:20px 0 8px}
.article-body figure{margin:20px 0}
.article-body figcaption{font-size:13px;color:var(--ink-500);text-align:center;margin-top:6px}
.article-body ul,.article-body ol{line-height:1.85;padding-left:1.3em}
.article-body li{margin-bottom:8px}
.article-body a{color:var(--brand-600);text-decoration:underline;text-decoration-thickness:1px;text-underline-offset:3px}
.article-body a:hover{color:var(--accent-600)}
.article-body table{width:100%;border-collapse:collapse;margin:22px 0;border:1px solid var(--line);border-radius:var(--r-md);overflow:hidden;display:block;overflow-x:auto;font-size:16px}
.article-body th{background:var(--brand-100);color:var(--ink-900);font-weight:600;text-align:left}
.article-body th,.article-body td{padding:12px 16px;border-bottom:1px solid var(--line);white-space:nowrap}
.article-body tr:nth-child(even) td{background:var(--bg)}
.article-body code{background:var(--brand-100);border-radius:6px;padding:2px 6px;font-size:15px;color:var(--brand-700)}

/* 目录侧栏 */
.toc{position:sticky;top:104px;align-self:start;border-left:1px solid var(--line);padding-left:20px;display:none}
.toc h4{font-size:14px;color:var(--ink-500);letter-spacing:.08em;margin-bottom:12px}
.toc ul{list-style:none;margin:0;padding:0}
.toc li{margin:0 0 6px;font-size:14px;line-height:1.6}
.toc a{color:var(--ink-500);display:block;padding:4px 0 4px 10px;border-left:2px solid transparent;margin-left:-21px}
.toc a:hover{color:var(--brand-600)}
.toc a.on{color:var(--brand-600);font-weight:600;border-left-color:var(--brand-600)}

/* 标签与说明卡 */
.article-foot{max-width:820px;margin:0 auto;padding:0 24px}
.tag-row{display:flex;flex-wrap:wrap;gap:10px;align-items:center;padding:28px 0}
.tag-row .label{font-size:14px;color:var(--ink-500);margin-right:4px}
.tag-plain{display:inline-flex;align-items:center;height:32px;padding:0 14px;border-radius:var(--r-pill);border:1px solid var(--line);background:var(--surface);color:var(--ink-700);font-size:14px}
.tag-plain:hover{border-color:var(--brand-600);color:var(--brand-600)}
.source-card{display:flex;gap:18px;align-items:flex-start;background:var(--surface);border:1px solid var(--line);border-radius:var(--r-lg);padding:22px 24px;box-shadow:var(--sh-1)}
.source-card .avatar{width:52px;height:52px;border-radius:var(--r-md);background:var(--brand-100);color:var(--brand-700);display:grid;place-items:center;font-weight:700;font-size:18px;flex:0 0 auto}
.source-card h4{margin-bottom:6px}
.source-card p{margin:0;font-size:15px;color:var(--ink-500);line-height:1.8}

/* 推荐与翻页 */
.rec-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(--r-lg);overflow:hidden;transition:all var(--t);height:100%}
.card-x:hover{transform:translateY(-2px);box-shadow:var(--sh-2)}
.card-x:hover h4{color:var(--brand-600)}
.card-thumb{aspect-ratio:16/9;overflow:hidden;background:var(--brand-100)}
.card-thumb img{width:100%;height:100%;object-fit:cover;transition:transform var(--t)}
.card-x:hover .card-thumb img{transform:scale(1.03)}
.card-body-x{padding:20px 22px 24px;display:flex;flex-direction:column;gap:10px;flex:1}
.card-body-x h4{font-size:17px;margin:0;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.card-body-x p{margin:0;font-size:15px;color:var(--ink-500);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.card-meta{font-size:13px;color:var(--ink-500);margin-top:auto}
.pager-grid{display:grid;grid-template-columns:1fr 1fr;gap:24px}
.pager-card{display:flex;align-items:center;gap:16px;background:var(--surface);border:1px solid var(--line);border-radius:var(--r-lg);padding:20px 24px;transition:all var(--t)}
.pager-card:hover{border-color:var(--brand-600);box-shadow:var(--sh-1);transform:translateY(-2px)}
.pager-card i{color:var(--brand-600);font-size:18px}
.pager-card span{display:block;font-size:13px;color:var(--ink-500)}
.pager-card strong{display:block;color:var(--ink-900);font-size:16px}
.pager-card.next{justify-content:flex-end;text-align:right}

/* 空态 */
.empty-state{border:1px dashed var(--line);border-radius:var(--r-lg);background:var(--surface);padding:56px 24px;text-align:center}
.empty-state i{font-size:30px;color:var(--brand-600)}
.empty-state h3{margin:14px 0 8px}
.empty-state p{margin:0;color:var(--ink-500)}
.empty-state a{font-weight:600;display:inline-block;margin-top:10px}

/* CTA */
.cta-band{background:var(--brand-700);color:#E7F1EE;padding:72px 0}
.cta-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:48px;align-items:center}
.cta-band h2{color:#fff}
.cta-band p{color:#CBE0DA}
.cta-points{list-style:none;padding:0;margin:22px 0 0;display:grid;gap:10px}
.cta-points li{display:flex;gap:10px;align-items:flex-start;color:#DCEBE6;margin:0;font-size:15px}
.cta-points i{color:var(--accent-100);margin-top:6px}
.form-card{background:var(--surface);border-radius:var(--r-lg);padding:28px;box-shadow:var(--sh-2)}
.form-card label{display:block;font-size:14px;font-weight:600;color:var(--ink-900);margin-bottom:8px}
.form-card .field{margin-bottom:18px}
.form-card input,.form-card textarea{width:100%;height:48px;border-radius:var(--r-md);border:1px solid var(--line);background:var(--surface);padding:0 14px;color:var(--ink-900);transition:all var(--t)}
.form-card textarea{height:104px;padding:12px 14px;line-height:1.7;resize:vertical}
.form-card input:focus,.form-card textarea:focus{outline:none;border-color:var(--brand-600);box-shadow:0 0 0 3px var(--ring)}
.form-card .btn-x{width:100%}
.form-card .hint{font-size:13px;color:var(--ink-500);margin:12px 0 0}

/* 页脚 */
.site-footer{background:var(--surface);border-top:1px solid var(--line);padding:64px 0 0;font-size:15px}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:40px}
.footer-brand{display:flex;align-items:center;gap:10px;font-weight:700;color:var(--brand-700);font-size:18px;margin-bottom:14px}
.site-footer h4{font-size:15px;letter-spacing:.04em;margin-bottom:16px}
.site-footer p{font-size:14px;color:var(--ink-500);line-height:1.8}
.site-footer ul{list-style:none;padding:0;margin:0}
.site-footer li{margin-bottom:10px;font-size:14px}
.site-footer li a{color:var(--ink-700)}
.site-footer li a:hover{color:var(--brand-600)}
.footer-contact li{display:flex;gap:10px;align-items:flex-start;color:var(--ink-500)}
.footer-contact i{margin-top:6px;color:var(--brand-600)}
.footer-bottom{margin-top:48px;border-top:1px solid var(--line);padding:20px 0 32px;display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;font-size:13px;color:var(--ink-500)}

/* 浮动 CTA */
.float-cta{position:fixed;right:24px;bottom:32px;z-index:1040;display:flex;flex-direction:column;gap:10px;opacity:0;visibility:hidden;transform:translateY(10px);transition:all var(--t)}
.float-cta.show{opacity:1;visibility:visible;transform:translateY(0)}
.float-cta a,.float-cta button{display:inline-flex;align-items:center;gap:0;height:50px;padding:0 16px;border-radius:var(--r-pill);background:var(--brand-600);color:#fff;border:1px solid var(--brand-600);box-shadow:var(--sh-2);font-weight:600;font-size:15px;overflow:hidden;white-space:nowrap;cursor:pointer;transition:all var(--t)}
.float-cta .fc-label{max-width:0;opacity:0;transition:all var(--t)}
.float-cta a:hover,.float-cta button:hover{background:var(--brand-700);gap:8px}
.float-cta a:hover .fc-label,.float-cta button:hover .fc-label{max-width:120px;opacity:1;margin-left:8px}
.mobile-bar{display:none}
body.has-mobile-bar{padding-bottom:56px}

@media (min-width:1200px){
  .toc{display:block}
}
@media (max-width:1199.98px){
  .article-wrap{grid-template-columns:minmax(0,820px);gap:0;padding:48px 0 64px}
}
@media (max-width:991.98px){
  .chip-nav{display:none}
  .header-actions .btn-primary-x{display:none}
  .nav-toggle{display:inline-grid;place-items:center}
  .section{padding:64px 0}
  .cta-grid{grid-template-columns:1fr;gap:32px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
}
@media (max-width:767.98px){
  body{font-size:16px}
  .section{padding:48px 0}
  .container-x{padding:0 16px}
  .article-body{font-size:16px}
  .article-body table th,.article-body td{padding:10px 12px}
  .rec-grid{grid-template-columns:1fr;gap:18px}
  .pager-grid{grid-template-columns:1fr}
  .topbar .topbar-links{display:none}
  .article-meta{font-size:13px;gap:8px 16px}
  .share-group{display:none}
  .float-cta{display:none}
  .mobile-bar{display:grid;grid-template-columns:1fr 1fr;gap:10px;position:fixed;left:0;right:0;bottom:0;z-index:1040;height:56px;padding:8px 12px;background:var(--surface);border-top:1px solid var(--line)}
  .mobile-bar .btn-x{height:40px;font-size:15px;padding:0 12px}
}
@media (max-width:575.98px){
  .footer-grid{grid-template-columns:1fr}
  .source-card{flex-direction:column;gap:12px}
}

/* roulang page: category1 */
:root{
  --brand-700:#0F4A43;
  --brand-600:#14655B;
  --brand-100:#E4F0EC;
  --accent-600:#C97A2B;
  --accent-100:#FBEEE0;
  --bg:#F7F4EE;
  --surface:#FFFFFF;
  --ink-900:#12211F;
  --ink-700:#2E423F;
  --ink-500:#5A6B67;
  --line:#E4DFD5;
  --ring:rgba(20,101,91,.28);
  --r-sm:8px;
  --r-md:12px;
  --r-lg:18px;
  --r-pill:999px;
  --sh-1:0 1px 2px rgba(18,33,31,.05), 0 8px 24px -12px rgba(18,33,31,.18);
  --sh-2:0 12px 32px -14px rgba(18,33,31,.28);
  --t:180ms ease;
  --bs-primary:#14655B;
  --bs-body-color:#2E423F;
  --bs-body-bg:#F7F4EE;
  --bs-border-color:#E4DFD5;
  --bs-link-color:#14655B;
  --bs-link-hover-color:#C97A2B;
  --bs-font-sans-serif:"PingFang SC","HarmonyOS Sans SC","Source Han Sans SC","Noto Sans SC","Microsoft YaHei",sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  background:var(--bg);
  color:var(--ink-700);
  font-family:"PingFang SC","HarmonyOS Sans SC","Source Han Sans SC","Noto Sans SC","Microsoft YaHei",sans-serif;
  font-size:17px;
  line-height:1.9;
  -webkit-font-smoothing:antialiased;
  padding-bottom:0;
}
img{max-width:100%;display:block}
a{color:var(--brand-600);text-decoration:none;transition:color var(--t)}
a:hover{color:var(--accent-600)}
h1,h2,h3,h4{color:var(--ink-900);font-weight:700;line-height:1.35;letter-spacing:-.01em;margin:0}
h1{font-size:clamp(30px,4.4vw,46px)}
h2{font-size:clamp(24px,3vw,32px)}
h3{font-size:20px}
h4{font-size:17px}
p{margin:0 0 1.15em}
p:last-child{margin-bottom:0}
ul,ol{margin:0;padding:0;list-style:none}
button,input,textarea{font:inherit;color:inherit}
:focus-visible{outline:3px solid var(--ring);outline-offset:2px;border-radius:4px}
.container-x{width:100%;max-width:1200px;margin:0 auto;padding:0 24px}

/* ============ header ============ */
.site-header{
  position:sticky;top:0;z-index:1030;
  background:rgba(247,244,238,.94);
  backdrop-filter:saturate(140%) blur(6px);
  border-bottom:1px solid var(--line);
  transition:box-shadow var(--t),background var(--t);
}
.site-header.is-stuck{box-shadow:var(--sh-1);background:#fff}
.header-inner{
  display:flex;align-items:center;gap:24px;
  min-height:72px;
}
.brand{display:flex;align-items:center;gap:10px;flex:0 0 auto;color:var(--ink-900)}
.brand:hover{color:var(--ink-900)}
.brand-mark{
  width:36px;height:36px;flex:0 0 36px;
  display:grid;place-items:center;
  border-radius:50%;
  background:var(--brand-600);
  color:#fff;font-weight:700;font-size:18px;
  box-shadow:inset 0 0 0 2px rgba(255,255,255,.28);
}
.brand-text{font-weight:700;font-size:18px;letter-spacing:0;white-space:nowrap}
.chip-nav{
  display:flex;align-items:center;gap:8px;
  flex:1 1 auto;
  overflow-x:auto;
  scrollbar-width:none;
  -ms-overflow-style:none;
  padding:6px 2px;
}
.chip-nav::-webkit-scrollbar{display:none}
.chip{
  flex:0 0 auto;
  display:inline-flex;align-items:center;
  height:38px;padding:0 16px;
  border-radius:var(--r-pill);
  border:1px solid var(--line);
  background:#fff;
  color:var(--ink-700);
  font-size:15px;font-weight:500;
  white-space:nowrap;
  transition:all var(--t);
}
.chip:hover{border-color:var(--brand-600);color:var(--brand-600)}
.chip.active{background:var(--brand-600);border-color:var(--brand-600);color:#fff;font-weight:600}
.header-cta{flex:0 0 auto;display:flex;align-items:center;gap:12px;margin-left:24px}
.btn-primary-x{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 28px;
  border-radius:var(--r-md);
  background:var(--brand-600);color:#fff;
  border:1px solid var(--brand-600);
  font-weight:600;font-size:16px;
  cursor:pointer;
  transition:all var(--t);
}
.btn-primary-x:hover{background:var(--brand-700);border-color:var(--brand-700);color:#fff;transform:translateY(-1px);box-shadow:var(--sh-2)}
.btn-primary-x:active{transform:translateY(0)}
.btn-outline-x{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 28px;
  border-radius:var(--r-md);
  background:transparent;color:var(--brand-600);
  border:1px solid var(--brand-600);
  font-weight:600;font-size:16px;
  cursor:pointer;
  transition:all var(--t);
}
.btn-outline-x:hover{background:var(--brand-100);color:var(--brand-700);transform:translateY(-1px)}
.btn-ghost-x{
  display:inline-flex;align-items:center;gap:8px;
  height:48px;padding:0 6px;
  background:none;border:none;
  color:var(--brand-600);font-weight:600;font-size:16px;
  cursor:pointer;
}
.btn-ghost-x i{transition:transform var(--t)}
.btn-ghost-x:hover{color:var(--accent-600)}
.btn-ghost-x:hover i{transform:translateX(4px)}
.nav-toggle{
  display:none;
  width:44px;height:44px;
  border:1px solid var(--line);border-radius:var(--r-md);
  background:#fff;color:var(--ink-900);
  align-items:center;justify-content:center;
  cursor:pointer;
}
.nav-toggle:hover{border-color:var(--brand-600);color:var(--brand-600)}

/* offcanvas */
.offcanvas.ocx{background:var(--bg);width:320px}
.ocx .ocx-head{display:flex;align-items:center;justify-content:space-between;padding:18px 20px;border-bottom:1px solid var(--line)}
.ocx .ocx-body{padding:20px}
.ocx .ocx-list{display:flex;flex-direction:column;gap:10px;margin-bottom:24px}
.ocx .ocx-list a{
  display:block;padding:14px 16px;border-radius:var(--r-md);
  background:#fff;border:1px solid var(--line);
  color:var(--ink-700);font-weight:600;
}
.ocx .ocx-list a.active{background:var(--brand-600);border-color:var(--brand-600);color:#fff}
.ocx .ocx-list a:hover{border-color:var(--brand-600);color:var(--brand-600)}
.ocx .ocx-list a.active:hover{color:#fff}

/* ============ breadcrumb ============ */
.crumb-bar{border-bottom:1px solid var(--line);background:var(--bg)}
.crumb{
  display:flex;align-items:center;gap:8px;flex-wrap:wrap;
  font-size:13px;color:var(--ink-500);
  padding:14px 0;
}
.crumb a{color:var(--ink-500)}
.crumb a:hover{color:var(--brand-600)}
.crumb .sep{opacity:.6}
.crumb .now{color:var(--ink-900);font-weight:600}

/* ============ hero ============ */
.cat-hero{
  position:relative;
  background:var(--bg);
  border-bottom:1px solid var(--line);
  overflow:hidden;
}
.cat-hero::before{
  content:"";
  position:absolute;inset:0;
  background-image:
    radial-gradient(circle at 12% 18%, rgba(20,101,91,.10), transparent 46%),
    radial-gradient(circle at 88% 76%, rgba(201,122,43,.10), transparent 44%),
    linear-gradient(0deg, transparent 0, transparent calc(100% - 1px), rgba(18,33,31,.04) 1px),
    linear-gradient(90deg, transparent 0, transparent calc(100% - 1px), rgba(18,33,31,.04) 1px);
  background-size:auto, auto, 100% 28px, 28px 100%;
  pointer-events:none;
}
.cat-hero .inner{
  position:relative;
  display:grid;grid-template-columns:1.25fr .95fr;gap:48px;
  align-items:center;
  padding:64px 0 68px;
}
.hero-chip{
  display:inline-flex;align-items:center;gap:8px;
  height:30px;padding:0 14px;margin-bottom:18px;
  border-radius:var(--r-pill);
  background:var(--brand-100);color:var(--brand-700);
  font-size:13px;font-weight:600;
}
.hero-chip i{color:var(--accent-600)}
.cat-hero h1{margin-bottom:16px}
.cat-hero .lead{
  font-size:17px;color:var(--ink-700);
  max-width:560px;margin-bottom:26px;
}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;align-items:center}
.hero-media{position:relative}
.hero-media img{
  width:100%;aspect-ratio:16/10;object-fit:cover;
  border-radius:var(--r-lg);
  box-shadow:var(--sh-1);
  border:1px solid var(--line);
}
.hero-badge{
  position:absolute;right:-14px;bottom:-22px;
  width:44%;
  background:#fff;border:1px solid var(--line);border-radius:var(--r-md);
  box-shadow:var(--sh-2);
  padding:14px 16px;
}
.hero-badge .num{font-size:26px;font-weight:700;color:var(--accent-600);line-height:1.2}
.hero-badge .cap{font-size:13px;color:var(--ink-500);line-height:1.6}

/* ============ 概览条 ============ */
.overview-strip{background:#fff;border-bottom:1px solid var(--line)}
.overview-grid{
  display:grid;grid-template-columns:repeat(4,1fr);
  padding:0;
}
.overview-grid > div{
  padding:28px 24px;
  border-left:1px solid var(--line);
}
.overview-grid > div:first-child{border-left:none;padding-left:0}
.overview-grid .num{font-size:32px;font-weight:700;color:var(--accent-600);line-height:1.15}
.overview-grid .cap{font-size:14px;color:var(--ink-500);margin-top:6px}

/* ============ 主体 ============ */
.main-wrap{padding:72px 0 88px}
.content-grid{display:grid;grid-template-columns:3fr 9fr;gap:48px;align-items:start}
.side-dir{position:sticky;top:104px}
.side-dir .dir-title{
  font-size:13px;letter-spacing:.08em;color:var(--ink-500);
  font-weight:600;margin-bottom:14px;
}
.side-dir ul{display:flex;flex-direction:column;gap:2px}
.side-dir a{
  position:relative;
  display:block;
  padding:11px 12px 11px 16px;
  font-size:15px;color:var(--ink-700);
  border-radius:var(--r-sm);
  transition:all var(--t);
}
.side-dir a::before{
  content:"";position:absolute;left:0;top:9px;bottom:9px;
  width:3px;border-radius:2px;background:transparent;
  transition:background var(--t);
}
.side-dir a:hover{background:var(--brand-100);color:var(--brand-700)}
.side-dir a.active{color:var(--brand-700);font-weight:600;background:var(--brand-100)}
.side-dir a.active::before{background:var(--brand-600)}
.side-note{
  margin-top:22px;padding:18px;
  background:var(--accent-100);border-radius:var(--r-md);
  font-size:14px;color:var(--ink-700);line-height:1.75;
}
.side-note strong{display:block;color:var(--ink-900);margin-bottom:6px}

.flow-head{
  padding-bottom:22px;margin-bottom:8px;border-bottom:1px solid var(--line);
}
.flow-head .eyebrow{
  font-size:13px;font-weight:600;color:var(--accent-600);letter-spacing:.06em;
  display:block;margin-bottom:10px;
}
.flow-head p{margin-top:12px;color:var(--ink-700);max-width:760px}

.guide-block{
  padding:32px 0;
  border-bottom:1px solid var(--line);
  scroll-margin-top:104px;
  display:grid;grid-template-columns:56px 1fr;gap:24px;
}
.guide-block:last-of-type{border-bottom:none}
.idx{
  width:48px;height:48px;
  display:grid;place-items:center;
  border-radius:6px;
  background:var(--accent-100);color:var(--accent-600);
  font-weight:700;font-size:16px;
  letter-spacing:.02em;
}
.guide-block h3{margin-bottom:10px}
.guide-block .sum{color:var(--ink-700);margin-bottom:14px}
.guide-block ul.dots{display:flex;flex-direction:column;gap:10px;margin-bottom:16px}
.guide-block ul.dots li{
  position:relative;padding-left:20px;font-size:16px;color:var(--ink-700);line-height:1.8;
}
.guide-block ul.dots li::before{
  content:"";position:absolute;left:2px;top:13px;
  width:7px;height:7px;border-radius:2px;background:var(--brand-600);opacity:.75;
}
.guide-block .link-more{font-weight:600;font-size:15px;display:inline-flex;align-items:center;gap:6px}
.guide-block .link-more i{transition:transform var(--t)}
.guide-block .link-more:hover i{transform:translateX(4px)}
.guide-media{
  margin-top:18px;
  border-radius:var(--r-md);overflow:hidden;border:1px solid var(--line);
}
.guide-media img{width:100%;aspect-ratio:16/9;object-fit:cover;transition:transform var(--t)}
.guide-media:hover img{transform:scale(1.03)}

/* ============ 场景 ============ */
.scene-sec{background:#fff;border-top:1px solid var(--line);border-bottom:1px solid var(--line);padding:88px 0}
.sec-head{max-width:760px;margin-bottom:44px}
.sec-head .eyebrow{font-size:13px;font-weight:600;color:var(--accent-600);letter-spacing:.06em;display:block;margin-bottom:10px}
.sec-head p{margin-top:14px;color:var(--ink-700)}
.scene-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.scene-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);
  padding:28px 24px;
  transition:all var(--t);
}
.scene-card:hover{transform:translateY(-2px);box-shadow:var(--sh-2);border-color:#d8d2c5}
.scene-card .ico{
  width:46px;height:46px;border-radius:var(--r-md);
  display:grid;place-items:center;
  background:var(--brand-100);color:var(--brand-700);
  font-size:18px;margin-bottom:18px;
}
.scene-card h3{font-size:19px;margin-bottom:10px}
.scene-card p{font-size:16px;color:var(--ink-700);margin:0}
.scene-card .tagline{
  display:inline-block;margin-top:16px;
  font-size:13px;font-weight:600;
  padding:5px 12px;border-radius:var(--r-pill);
  background:var(--accent-100);color:var(--accent-600);
}

/* ============ 步骤 ============ */
.steps-sec{padding:88px 0}
.steps-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px;counter-reset:st}
.step-card{
  position:relative;
  background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);
  padding:28px 24px 26px;
  transition:all var(--t);
}
.step-card:hover{transform:translateY(-2px);box-shadow:var(--sh-2)}
.step-card .st{
  width:40px;height:40px;border-radius:var(--r-sm);
  background:var(--brand-600);color:#fff;
  display:grid;place-items:center;font-weight:700;font-size:16px;
  margin-bottom:18px;
}
.step-card h3{font-size:18px;margin-bottom:8px}
.step-card p{font-size:15px;color:var(--ink-500);margin:0;line-height:1.8}

/* ============ FAQ ============ */
.faq-sec{background:#fff;border-top:1px solid var(--line);padding:88px 0}
.faq-grid{display:grid;grid-template-columns:4fr 8fr;gap:48px;align-items:start}
.faq-side{position:sticky;top:104px}
.faq-side p{margin-top:16px;color:var(--ink-700);font-size:16px}
.accordion.accx .accordion-item{
  border:none;border-bottom:1px solid var(--line);background:transparent;
}
.accordion.accx .accordion-button{
  background:transparent;color:var(--ink-900);
  font-weight:600;font-size:17px;
  padding:20px 44px 20px 18px;
  box-shadow:none;
  border-radius:0;
}
.accordion.accx .accordion-button::before{
  content:"";position:absolute;left:0;top:14px;bottom:14px;
  width:4px;border-radius:2px;background:transparent;transition:background var(--t);
}
.accordion.accx .accordion-button:not(.collapsed){color:var(--ink-900);background:transparent}
.accordion.accx .accordion-button:not(.collapsed)::before{background:var(--accent-600)}
.accordion.accx .accordion-button:focus{box-shadow:none;border-color:transparent;outline:3px solid var(--ring);outline-offset:-3px}
.accordion.accx .accordion-button::after{
  background-image:none;
  content:"\f078";
  font-family:"Font Awesome 6 Free";font-weight:900;
  font-size:13px;color:var(--brand-600);
  width:auto;height:auto;
  display:grid;place-items:center;
  transform:none;transition:transform var(--t);
  margin-left:auto;
}
.accordion.accx .accordion-button:not(.collapsed)::after{transform:rotate(180deg);color:var(--accent-600)}
.accordion.accx .accordion-body{
  padding:0 44px 22px 18px;
  font-size:15px;line-height:1.85;color:var(--ink-700);
}

/* ============ 相关栏目 ============ */
.related-sec{padding:72px 0 80px}
.related-sec .bar{display:flex;align-items:center;justify-content:space-between;gap:24px;flex-wrap:wrap;margin-bottom:24px}
.related-chips{display:flex;flex-wrap:wrap;gap:12px}
.related-chips a{
  display:inline-flex;align-items:center;gap:8px;
  height:44px;padding:0 20px;
  border-radius:var(--r-pill);
  background:#fff;border:1px solid var(--line);
  color:var(--ink-700);font-size:15px;font-weight:500;
  transition:all var(--t);
}
.related-chips a:hover{border-color:var(--brand-600);color:var(--brand-600);transform:translateY(-1px);box-shadow:var(--sh-1)}
.related-chips a.cur{background:var(--brand-600);border-color:var(--brand-600);color:#fff;font-weight:600}
.related-chips a.cur:hover{color:#fff}

/* ============ CTA ============ */
.cta-sec{background:var(--brand-700);color:#fff;padding:80px 0;position:relative;overflow:hidden}
.cta-sec::after{
  content:"";position:absolute;right:-120px;top:-120px;
  width:420px;height:420px;border-radius:50%;
  background:radial-gradient(circle, rgba(201,122,43,.28), transparent 68%);
  pointer-events:none;
}
.cta-grid{display:grid;grid-template-columns:6fr 5fr;gap:56px;align-items:center;position:relative}
.cta-sec h2{color:#fff}
.cta-sec p{color:rgba(255,255,255,.82);margin-top:16px;font-size:16px}
.cta-points{margin-top:26px;display:flex;flex-direction:column;gap:12px}
.cta-points li{display:flex;align-items:flex-start;gap:10px;font-size:15px;color:rgba(255,255,255,.9)}
.cta-points i{color:var(--accent-600);margin-top:6px}
.form-card{
  background:#fff;border-radius:var(--r-lg);
  padding:30px 28px;box-shadow:var(--sh-2);
}
.form-card h3{color:var(--ink-900);font-size:20px;margin-bottom:6px}
.form-card .hint{font-size:14px;color:var(--ink-500);margin-bottom:20px}
.field{margin-bottom:16px}
.field label{display:block;font-size:14px;font-weight:600;color:var(--ink-900);margin-bottom:8px}
.field input,.field textarea{
  width:100%;height:48px;padding:0 14px;
  border:1px solid var(--line);border-radius:var(--r-md);
  background:#fff;color:var(--ink-900);font-size:15px;
  transition:border-color var(--t), box-shadow var(--t);
}
.field textarea{height:auto;min-height:104px;padding:12px 14px;line-height:1.7;resize:vertical}
.field input:focus,.field textarea:focus{
  outline:none;border-color:var(--brand-600);box-shadow:0 0 0 3px var(--ring);
}
.field .err{font-size:13px;color:var(--accent-600);margin-top:6px;display:none}
.form-card .btn-primary-x{width:100%}
.form-note{font-size:13px;color:var(--ink-500);margin-top:12px;text-align:center}

/* ============ footer ============ */
.site-footer{background:#fff;border-top:1px solid var(--line);padding:64px 0 0}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.2fr;gap:40px;padding-bottom:44px}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:16px;font-weight:700;color:var(--ink-900);font-size:18px}
.site-footer p{font-size:15px;color:var(--ink-500);line-height:1.85}
.site-footer h4{font-size:15px;margin-bottom:18px;color:var(--ink-900)}
.site-footer ul{display:flex;flex-direction:column;gap:11px}
.site-footer ul a{font-size:15px;color:var(--ink-700)}
.site-footer ul a:hover{color:var(--brand-600)}
.footer-contact li{display:flex;gap:10px;font-size:15px;color:var(--ink-500)}
.footer-contact i{color:var(--brand-600);margin-top:6px;flex:0 0 auto;font-size:14px}
.footer-bottom{
  border-top:1px solid var(--line);
  padding:20px 0;display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:13px;color:var(--ink-500);
}
.footer-bottom a{color:var(--ink-500)}
.footer-bottom a:hover{color:var(--brand-600)}

/* ============ 浮动 CTA ============ */
.float-cta{
  position:fixed;right:24px;bottom:28px;z-index:1040;
  display:flex;flex-direction:column;gap:10px;
  opacity:0;transform:translateY(14px);pointer-events:none;
  transition:opacity 300ms ease, transform 300ms ease;
}
.float-cta.show{opacity:1;transform:translateY(0);pointer-events:auto}
.float-btn{
  display:inline-flex;align-items:center;gap:0;
  height:48px;padding:0 16px;
  border-radius:var(--r-pill);
  background:var(--brand-600);color:#fff;
  font-weight:600;font-size:15px;white-space:nowrap;
  box-shadow:var(--sh-1);
  transition:all var(--t);
}
.float-btn i{font-size:15px}
.float-btn span{max-width:0;overflow:hidden;opacity:0;transition:all var(--t);white-space:nowrap}
.float-btn:hover{background:var(--brand-700);color:#fff;box-shadow:var(--sh-2);transform:translateY(-1px)}
.float-btn:hover span{max-width:140px;opacity:1;margin-left:8px}
.float-btn.alt{background:#fff;color:var(--brand-600);border:1px solid var(--brand-600)}
.float-btn.alt:hover{background:var(--brand-100);color:var(--brand-700)}

.mobile-bar{
  display:none;
  position:fixed;left:0;right:0;bottom:0;z-index:1040;
  height:56px;background:#fff;border-top:1px solid var(--line);
  padding:8px 12px;gap:10px;
  box-shadow:0 -6px 20px -12px rgba(18,33,31,.3);
}
.mobile-bar a{
  flex:1 1 0;display:grid;place-items:center;
  border-radius:var(--r-md);font-weight:600;font-size:15px;
}
.mobile-bar a.p{background:var(--brand-600);color:#fff}
.mobile-bar a.s{background:var(--brand-100);color:var(--brand-700)}
body.drawer-open .mobile-bar,body.drawer-open .float-cta{display:none}

/* ============ 响应式 ============ */
@media (max-width:1399.98px){
  .content-grid{gap:40px}
}
@media (max-width:1199.98px){
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
  .overview-grid{grid-template-columns:repeat(2,1fr)}
  .overview-grid > div:nth-child(3){border-left:none;padding-left:0}
  .overview-grid > div:nth-child(3),.overview-grid > div:nth-child(4){border-top:1px solid var(--line)}
}
@media (max-width:991.98px){
  .chip-nav{display:none}
  .nav-toggle{display:inline-flex}
  .header-cta .btn-primary-x{display:none}
  .cat-hero .inner{grid-template-columns:1fr;gap:36px;padding:52px 0 56px}
  .hero-media{order:-1}
  .hero-badge{right:12px;bottom:-18px}
  .content-grid{grid-template-columns:1fr;gap:32px}
  .side-dir{position:static}
  .side-dir ul{flex-direction:row;flex-wrap:nowrap;overflow-x:auto;gap:8px;padding-bottom:6px;scrollbar-width:none}
  .side-dir ul::-webkit-scrollbar{display:none}
  .side-dir a{white-space:nowrap;border:1px solid var(--line);border-radius:var(--r-pill);background:#fff;padding:9px 16px}
  .side-dir a::before{display:none}
  .side-dir a.active{background:var(--brand-600);border-color:var(--brand-600);color:#fff}
  .side-note{display:none}
  .scene-grid{grid-template-columns:1fr;gap:20px}
  .steps-grid{grid-template-columns:repeat(2,1fr)}
  .faq-grid{grid-template-columns:1fr;gap:28px}
  .faq-side{position:static}
  .cta-grid{grid-template-columns:1fr;gap:36px}
  .main-wrap{padding:52px 0 64px}
  .scene-sec,.steps-sec,.faq-sec,.cta-sec{padding:64px 0}
}
@media (max-width:767.98px){
  body{font-size:16px;padding-bottom:56px}
  .container-x{padding:0 16px}
  .header-inner{min-height:64px;gap:12px}
  .brand-text{font-size:16px}
  .brand-mark{width:32px;height:32px;flex:0 0 32px;font-size:16px}
  .cat-hero .inner{padding:40px 0 44px}
  .cat-hero .lead{font-size:16px}
  .hero-badge{position:static;width:100%;margin-top:14px}
  .overview-grid{grid-template-columns:1fr}
  .overview-grid > div{padding:20px 0;border-left:none!important;border-top:1px solid var(--line)}
  .overview-grid > div:first-child{border-top:none}
  .steps-grid{grid-template-columns:1fr}
  .guide-block{grid-template-columns:1fr;gap:14px}
  .idx{width:40px;height:40px;font-size:15px}
  .footer-grid{grid-template-columns:1fr;gap:28px}
  .footer-bottom{flex-direction:column;gap:8px}
  .float-cta{display:none}
  .mobile-bar{display:flex}
  .form-card{padding:24px 20px}
  .related-chips a{height:40px;padding:0 16px;font-size:14px}
}
@media (max-width:519.98px){
  h1{font-size:28px}
  .btn-primary-x,.btn-outline-x{height:46px;padding:0 20px;font-size:15px}
  .hero-actions{gap:10px}
  .hero-actions .btn-outline-x{width:100%;justify-content:center}
}
@media (prefers-reduced-motion:reduce){
  *{animation:none!important;transition:none!important}
  html{scroll-behavior:auto}
}

/* roulang page: category2 */
:root{
  --brand-700:#0F4A43;
  --brand-600:#14655B;
  --brand-100:#E4F0EC;
  --accent-600:#C97A2B;
  --accent-100:#FBEEE0;
  --bg:#F7F4EE;
  --surface:#FFFFFF;
  --ink-900:#12211F;
  --ink-700:#2E423F;
  --ink-500:#5A6B67;
  --line:#E4DFD5;
  --ring:rgba(20,101,91,.28);
  --r-sm:8px;
  --r-md:12px;
  --r-lg:18px;
  --r-pill:999px;
  --sh-1:0 1px 2px rgba(18,33,31,.05), 0 8px 24px -12px rgba(18,33,31,.18);
  --sh-2:0 12px 32px -14px rgba(18,33,31,.28);
  --tr:180ms ease;

  --bs-primary:#14655B;
  --bs-primary-rgb:20,101,91;
  --bs-body-color:#2E423F;
  --bs-body-bg:#F7F4EE;
  --bs-border-color:#E4DFD5;
  --bs-link-color:#14655B;
  --bs-link-hover-color:#C97A2B;
  --bs-font-sans-serif:"PingFang SC","HarmonyOS Sans SC","Source Han Sans SC","Noto Sans SC","Microsoft YaHei",sans-serif;
}

*{box-sizing:border-box;}
html{scroll-behavior:smooth;scroll-padding-top:104px;}
body{
  margin:0;
  background:var(--bg);
  color:var(--ink-700);
  font-family:"PingFang SC","HarmonyOS Sans SC","Source Han Sans SC","Noto Sans SC","Microsoft YaHei",sans-serif;
  font-size:17px;
  line-height:1.9;
  -webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4,h5{color:var(--ink-900);font-weight:700;line-height:1.35;margin:0;}
h1{font-size:clamp(30px,4.4vw,46px);letter-spacing:-.01em;}
h2{font-size:clamp(24px,3vw,32px);}
h3{font-size:20px;}
h4{font-size:17px;}
p{margin:0 0 1.15em;line-height:1.9;}
a{color:var(--brand-600);text-decoration:none;transition:color var(--tr);}
a:hover{color:var(--accent-600);}
img{max-width:100%;display:block;}
ul,ol{margin:0;padding:0;list-style:none;}
button{font-family:inherit;}
:focus-visible{outline:3px solid var(--ring);outline-offset:2px;border-radius:6px;}

.container-x{width:100%;max-width:1200px;margin:0 auto;padding:0 24px;}

/* ---------- 顶部通栏 ---------- */
.topbar{background:var(--brand-700);color:#DDEBE7;font-size:13px;line-height:36px;min-height:36px;}
.topbar-inner{display:flex;align-items:center;justify-content:space-between;gap:16px;}
.topbar-key{display:inline-flex;align-items:center;gap:8px;color:#EAF4F1;white-space:nowrap;}
.topbar-key i{color:var(--accent-600);filter:brightness(1.6);}
.topbar-links{display:inline-flex;align-items:center;gap:18px;}
.topbar-links a{color:#CDE3DE;}
.topbar-links a:hover{color:#FFFFFF;}
.topbar-close{background:transparent;border:0;color:#CDE3DE;line-height:1;padding:6px 2px;cursor:pointer;}
.topbar-close:hover{color:#FFFFFF;}

/* ---------- 导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:1030;background:var(--surface);
  border-bottom:1px solid var(--line);
  transition:box-shadow var(--tr);
}
.site-header.is-stuck{box-shadow:var(--sh-1);}
.header-inner{display:flex;align-items:center;gap:28px;min-height:72px;}
.brand{display:inline-flex;align-items:center;gap:10px;flex:0 0 auto;}
.brand-mark{
  width:36px;height:36px;border-radius:50%;
  display:grid;place-items:center;
  background:conic-gradient(from 200deg,var(--brand-600),var(--brand-700),var(--brand-600));
  color:#fff;font-weight:700;font-size:17px;
  box-shadow:0 0 0 4px var(--brand-100);
}
.brand-text{font-weight:700;font-size:18px;color:var(--brand-700);letter-spacing:.2px;}
.chip-nav{
  display:flex;align-items:center;gap:8px;flex:1 1 auto;min-width:0;
  overflow-x:auto;scrollbar-width:none;-ms-overflow-style:none;padding:6px 0;
}
.chip-nav::-webkit-scrollbar{display:none;}
.chip{
  flex:0 0 auto;display:inline-flex;align-items:center;
  height:38px;padding:0 16px;border-radius:var(--r-pill);
  border:1px solid var(--line);background:#fff;
  color:var(--ink-700);font-size:15px;line-height:1;font-weight:600;
  transition:background var(--tr),color var(--tr),border-color var(--tr),box-shadow var(--tr);
}
.chip:hover{background:var(--brand-100);border-color:#CFE3DD;color:var(--brand-700);}
.chip.active{background:var(--brand-600);border-color:var(--brand-600);color:#fff;box-shadow:var(--sh-1);}
.header-actions{display:flex;align-items:center;gap:14px;margin-left:8px;flex:0 0 auto;}
.hamburger{
  display:none;width:42px;height:42px;border-radius:var(--r-md);
  border:1px solid var(--line);background:#fff;color:var(--brand-700);font-size:17px;
}
.hamburger:hover{background:var(--brand-100);}

/* ---------- 按钮 ---------- */
.btn-x{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 28px;border-radius:var(--r-md);
  font-size:16px;font-weight:600;line-height:1;cursor:pointer;
  border:1px solid transparent;transition:all var(--tr);
}
.btn-brand{background:var(--brand-600);color:#fff;border-color:var(--brand-600);}
.btn-brand:hover{background:var(--brand-700);border-color:var(--brand-700);color:#fff;transform:translateY(-1px);box-shadow:var(--sh-2);}
.btn-outline-brand{background:transparent;color:var(--brand-700);border-color:var(--brand-600);}
.btn-outline-brand:hover{background:var(--brand-100);color:var(--brand-700);transform:translateY(-1px);}
.btn-ghost{height:auto;padding:0;background:transparent;border:0;color:var(--brand-600);font-weight:600;}
.btn-ghost i{transition:transform var(--tr);}
.btn-ghost:hover{color:var(--accent-600);}
.btn-ghost:hover i{transform:translateX(4px);}
.btn-sm-x{height:40px;padding:0 20px;font-size:15px;border-radius:var(--r-pill);}

/* ---------- 页面 Hero ---------- */
.page-hero{
  position:relative;overflow:hidden;
  background:
    radial-gradient(680px 320px at 12% -10%, rgba(20,101,91,.10), transparent 70%),
    radial-gradient(520px 260px at 92% 8%, rgba(201,122,43,.12), transparent 72%),
    var(--bg);
  border-bottom:1px solid var(--line);
}
.page-hero::after{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:linear-gradient(rgba(18,33,31,.045) 1px,transparent 1px),linear-gradient(90deg,rgba(18,33,31,.045) 1px,transparent 1px);
  background-size:56px 56px;
  opacity:.7;
}
.hero-grid{
  position:relative;z-index:1;
  display:grid;grid-template-columns:1.05fr .95fr;gap:48px;align-items:center;
  padding:64px 24px 72px;
}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  background:var(--accent-100);color:var(--accent-600);
  border-radius:var(--r-pill);padding:7px 16px;font-size:13px;font-weight:700;line-height:1;margin-bottom:20px;
}
.hero-copy h1{margin-bottom:16px;}
.hero-sub{font-size:17px;color:var(--ink-700);max-width:520px;margin-bottom:26px;}
.hero-cta{display:flex;flex-wrap:wrap;gap:14px;}
.hero-figure{position:relative;}
.hero-figure img{
  width:100%;aspect-ratio:16/10;object-fit:cover;
  border-radius:var(--r-lg);border:1px solid var(--line);box-shadow:var(--sh-2);background:#fff;
}
.hero-badge{
  position:absolute;right:-12px;bottom:-16px;
  background:#fff;border:1px solid var(--line);border-radius:var(--r-pill);
  padding:10px 18px;font-size:13px;font-weight:600;color:var(--brand-700);
  box-shadow:var(--sh-2);white-space:nowrap;
}

/* ---------- 面包屑 ---------- */
.crumb-bar{background:var(--surface);border-bottom:1px solid var(--line);}
.crumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--ink-500);padding:14px 0;}
.crumb a{color:var(--ink-500);}
.crumb a:hover{color:var(--brand-600);}
.crumb .sep{color:#C7C0B2;}
.crumb .now{color:var(--brand-700);font-weight:600;}

/* ---------- 板块 ---------- */
.section{padding:88px 0;}
.section-alt{background:var(--surface);border-top:1px solid var(--line);border-bottom:1px solid var(--line);}
.section-head{max-width:760px;margin-bottom:44px;}
.section-head .tag{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;font-weight:700;color:var(--brand-600);
  background:var(--brand-100);border-radius:var(--r-pill);padding:6px 14px;line-height:1;margin-bottom:16px;
}
.section-head p{color:var(--ink-500);margin-top:14px;margin-bottom:0;}

/* ---------- 数据条 ---------- */
.stat-strip{
  display:grid;grid-template-columns:repeat(4,1fr);
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-lg);
  box-shadow:var(--sh-1);overflow:hidden;
}
.stat-item{padding:28px 24px;border-right:1px solid var(--line);}
.stat-item:last-child{border-right:0;}
.stat-num{font-size:32px;font-weight:700;color:var(--accent-600);line-height:1.1;}
.stat-label{font-size:14px;color:var(--ink-500);margin-top:6px;}

/* ---------- 时间轴 ---------- */
.timeline{position:relative;max-width:1000px;margin:0 auto;padding:8px 0 0;}
.timeline::before{
  content:"";position:absolute;top:0;bottom:0;left:50%;width:2px;
  transform:translateX(-50%);background:var(--line);
}
.tl-item{position:relative;width:50%;padding:0 56px 44px 0;}
.tl-item:nth-child(even){margin-left:50%;padding:0 0 44px 56px;}
.tl-dot{
  position:absolute;top:30px;right:-6px;width:12px;height:12px;border-radius:50%;
  background:var(--accent-600);box-shadow:0 0 0 4px var(--accent-100);
}
.tl-item:nth-child(even) .tl-dot{right:auto;left:-6px;}
.tl-card{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-lg);
  padding:26px;box-shadow:var(--sh-1);transition:transform var(--tr),box-shadow var(--tr),border-color var(--tr);
}
.tl-card:hover{transform:translateY(-2px);box-shadow:var(--sh-2);border-color:#D6E5E0;}
.tl-head{display:flex;align-items:center;gap:12px;margin-bottom:12px;}
.tl-num{
  flex:0 0 auto;width:34px;height:34px;border-radius:6px;
  display:grid;place-items:center;background:var(--accent-100);color:var(--accent-600);
  font-weight:700;font-size:14px;line-height:1;
}
.tl-card h3{font-size:19px;margin-bottom:10px;}
.tl-card p{font-size:15px;color:var(--ink-500);margin-bottom:0;line-height:1.85;}
.tl-card img{
  width:100%;aspect-ratio:16/9;object-fit:cover;border-radius:var(--r-md);
  border:1px solid var(--line);margin-top:18px;
}
.tl-meta{display:flex;flex-wrap:wrap;gap:8px;margin-top:16px;}
.tl-meta span{
  font-size:13px;color:var(--brand-700);background:var(--brand-100);
  border-radius:var(--r-pill);padding:4px 12px;line-height:1.5;
}

/* ---------- 场景卡片 ---------- */
.scene-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;}
.card-x{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-lg);
  padding:28px;box-shadow:var(--sh-1);
  display:flex;flex-direction:column;
  transition:transform var(--tr),box-shadow var(--tr),border-color var(--tr);
}
.card-x:hover{transform:translateY(-2px);box-shadow:var(--sh-2);border-color:#D6E5E0;}
.card-x:hover h3{color:var(--brand-600);}
.card-x h3{font-size:19px;margin-bottom:10px;transition:color var(--tr);}
.card-x p{font-size:15px;color:var(--ink-500);line-height:1.85;}
.icon-box{
  width:44px;height:44px;border-radius:var(--r-md);display:grid;place-items:center;
  background:var(--brand-100);color:var(--brand-700);font-size:18px;margin-bottom:18px;
}
.card-x .link-more{margin-top:auto;font-size:15px;font-weight:600;display:inline-flex;align-items:center;gap:6px;}
.card-x .link-more i{transition:transform var(--tr);}
.card-x .link-more:hover i{transform:translateX(4px);}

/* ---------- 图文条 ---------- */
.split-band{
  display:grid;grid-template-columns:1fr 1fr;gap:48px;align-items:center;
}
.split-band img{
  width:100%;aspect-ratio:16/10;object-fit:cover;
  border-radius:var(--r-lg);border:1px solid var(--line);box-shadow:var(--sh-1);
}
.check-list li{
  display:flex;gap:12px;align-items:flex-start;
  padding:12px 0;border-bottom:1px dashed var(--line);font-size:16px;color:var(--ink-700);
}
.check-list li:last-child{border-bottom:0;}
.check-list i{color:var(--brand-600);margin-top:6px;font-size:14px;}

/* ---------- FAQ ---------- */
.faq-wrap{display:grid;grid-template-columns:.8fr 1.6fr;gap:48px;align-items:start;}
.faq-side{position:sticky;top:112px;}
.faq-side .tag{
  display:inline-flex;align-items:center;gap:8px;font-size:13px;font-weight:700;
  color:var(--brand-600);background:var(--brand-100);border-radius:var(--r-pill);
  padding:6px 14px;line-height:1;margin-bottom:16px;
}
.faq-side p{color:var(--ink-500);font-size:15px;margin-top:14px;}
.accordion-x .accordion-item{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-md);
  margin-bottom:14px;overflow:hidden;box-shadow:var(--sh-1);
}
.accordion-x .accordion-button{
  background:var(--surface);color:var(--ink-900);font-weight:600;font-size:16px;
  padding:18px 22px;line-height:1.6;box-shadow:none;
}
.accordion-x .accordion-button:not(.collapsed){
  background:var(--brand-100);color:var(--brand-700);
  border-left:4px solid var(--accent-600);
}
.accordion-x .accordion-button::after{
  width:14px;height:14px;background-size:14px;filter:none;
  background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16' fill='%2314655B'%3E%3Cpath d='M8 1.5a.75.75 0 0 1 .75.75v5h5a.75.75 0 0 1 0 1.5h-5v5a.75.75 0 0 1-1.5 0v-5h-5a.75.75 0 0 1 0-1.5h5v-5A.75.75 0 0 1 8 1.5z'/%3E%3C/svg%3E");
}
.accordion-x .accordion-button:focus{box-shadow:none;outline:3px solid var(--ring);outline-offset:-3px;}
.accordion-x .accordion-body{
  font-size:15px;line-height:1.85;color:var(--ink-500);padding:6px 22px 22px;
}

/* ---------- CTA ---------- */
.cta-band{
  background:
    radial-gradient(600px 300px at 8% 0%, rgba(20,101,91,.10), transparent 70%),
    var(--bg);
  border-top:1px solid var(--line);
}
.cta-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:48px;align-items:center;padding:80px 0;}
.cta-list{margin-top:24px;}
.cta-list li{display:flex;gap:10px;align-items:center;font-size:15px;color:var(--ink-700);padding:7px 0;}
.cta-list i{color:var(--accent-600);}
.form-card{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-lg);
  box-shadow:var(--sh-2);padding:32px;
}
.form-card h3{font-size:20px;margin-bottom:6px;}
.form-card .hint{font-size:14px;color:var(--ink-500);margin-bottom:22px;}
.field{margin-bottom:18px;}
.field label{display:block;font-size:14px;font-weight:600;color:var(--ink-900);margin-bottom:8px;}
.field input,.field textarea{
  width:100%;border:1px solid var(--line);background:#fff;border-radius:var(--r-md);
  padding:0 14px;height:48px;font-size:15px;color:var(--ink-900);
  font-family:inherit;transition:border-color var(--tr),box-shadow var(--tr);
}
.field textarea{height:104px;padding:12px 14px;line-height:1.7;resize:vertical;}
.field input:focus,.field textarea:focus{
  outline:none;border-color:var(--brand-600);box-shadow:0 0 0 3px var(--ring);
}
.field .tip{font-size:13px;color:var(--accent-600);margin-top:6px;display:none;}
.field.has-error input,.field.has-error textarea{border-color:var(--accent-600);}
.field.has-error .tip{display:block;}
.form-note{font-size:13px;color:var(--ink-500);margin-top:14px;margin-bottom:0;}
.form-ok{
  display:none;margin-top:16px;font-size:14px;color:var(--brand-700);
  background:var(--brand-100);border-radius:var(--r-md);padding:12px 16px;
}

/* ---------- 相关栏目 ---------- */
.chip-group{display:flex;flex-wrap:wrap;gap:12px;}
.chip-link{
  display:inline-flex;align-items:center;gap:8px;
  height:44px;padding:0 20px;border-radius:var(--r-pill);
  background:var(--surface);border:1px solid var(--line);
  font-size:15px;font-weight:600;color:var(--ink-700);
  transition:all var(--tr);
}
.chip-link:hover{background:var(--brand-100);border-color:#CFE3DD;color:var(--brand-700);transform:translateY(-2px);box-shadow:var(--sh-1);}
.chip-link i{color:var(--accent-600);font-size:13px;}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--brand-700);color:#CFE1DC;padding:64px 0 0;margin-top:0;}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:40px;padding-bottom:44px;}
.site-footer h4{color:#fff;font-size:16px;margin-bottom:16px;}
.site-footer p{font-size:14px;line-height:1.9;color:#B9D3CD;margin:16px 0 0;}
.footer-brand{display:flex;align-items:center;gap:10px;color:#fff;font-weight:700;font-size:18px;}
.footer-brand .brand-mark{
  width:34px;height:34px;font-size:16px;
  background:conic-gradient(from 200deg,#2E8C7C,#0F4A43,#2E8C7C);
  box-shadow:0 0 0 4px rgba(255,255,255,.10);
}
.site-footer ul li{margin-bottom:10px;font-size:14px;}
.site-footer a{color:#CFE1DC;}
.site-footer a:hover{color:#FFFFFF;}
.footer-contact li{display:flex;gap:10px;align-items:flex-start;color:#B9D3CD;}
.footer-contact i{margin-top:6px;color:#7FB6AA;font-size:13px;}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.14);
  padding:20px 0;display:flex;flex-wrap:wrap;gap:12px;
  justify-content:space-between;font-size:13px;color:#A9C6C0;
}
.footer-bottom a{color:#CFE1DC;}

/* ---------- 浮动 CTA ---------- */
.float-cta{
  position:fixed;right:24px;bottom:32px;z-index:1020;
  display:flex;flex-direction:column;gap:10px;
  opacity:0;visibility:hidden;transform:translateY(12px);
  transition:opacity var(--tr),transform var(--tr),visibility var(--tr);
}
.float-cta.show{opacity:1;visibility:visible;transform:translateY(0);}
.float-cta .fbtn{
  display:inline-flex;align-items:center;gap:0;
  height:48px;padding:0 16px;border-radius:var(--r-pill);
  background:var(--brand-600);color:#fff;font-size:15px;font-weight:600;line-height:1;
  box-shadow:var(--sh-2);white-space:nowrap;overflow:hidden;
  transition:background var(--tr),gap var(--tr),padding var(--tr);
}
.float-cta .fbtn i{flex:0 0 auto;}
.float-cta .fbtn span{max-width:0;opacity:0;overflow:hidden;transition:max-width var(--tr),opacity var(--tr);}
.float-cta .fbtn:hover{background:var(--brand-700);color:#fff;gap:8px;padding:0 20px;}
.float-cta .fbtn:hover span{max-width:140px;opacity:1;}
.mobile-bar{display:none;}

/* ---------- 抽屉 ---------- */
.offcanvas-x{background:var(--surface);color:var(--ink-700);border-left:1px solid var(--line)!important;}
.offcanvas-x .offcanvas-header{border-bottom:1px solid var(--line);padding:18px 20px;}
.offcanvas-x .offcanvas-title{font-size:16px;font-weight:700;color:var(--brand-700);}
.drawer-nav{display:flex;flex-direction:column;gap:10px;padding:20px;}
.drawer-nav .chip{height:46px;justify-content:flex-start;border-radius:var(--r-md);padding:0 18px;}
.drawer-cta{padding:0 20px 24px;}

/* ---------- 响应式 ---------- */
@media (max-width:1199.98px){
  .hero-grid{gap:36px;padding:56px 24px 64px;}
  .footer-grid{grid-template-columns:1.4fr 1fr 1fr;gap:32px;}
}
@media (max-width:991.98px){
  html{scroll-padding-top:92px;}
  .chip-nav{display:none;}
  .hamburger{display:grid;place-items:center;}
  .header-inner{gap:16px;min-height:66px;justify-content:space-between;}
  .header-actions .btn-x{display:none;}
  .hero-grid{grid-template-columns:1fr;padding:48px 24px 56px;}
  .hero-figure{max-width:640px;}
  .hero-badge{right:8px;bottom:-14px;}
  .section{padding:64px 0;}
  .cta-grid{grid-template-columns:1fr;padding:64px 0;gap:36px;}
  .faq-wrap{grid-template-columns:1fr;gap:28px;}
  .faq-side{position:static;}
  .split-band{grid-template-columns:1fr;gap:28px;}
  .scene-grid{grid-template-columns:1fr 1fr;}
  .stat-strip{grid-template-columns:1fr 1fr;}
  .stat-item:nth-child(2){border-right:0;}
  .stat-item:nth-child(1),.stat-item:nth-child(2){border-bottom:1px solid var(--line);}
  .footer-grid{grid-template-columns:1fr 1fr;}
  /* 时间轴移动端：单列靠右 */
  .timeline::before{left:9px;transform:none;}
  .tl-item,.tl-item:nth-child(even){width:100%;margin-left:0;padding:0 0 32px 40px;}
  .tl-dot,.tl-item:nth-child(even) .tl-dot{left:3px;right:auto;top:26px;}
}
@media (max-width:767.98px){
  body{font-size:16px;}
  .topbar-links a{display:none;}
  .container-x{padding:0 16px;}
  .hero-grid{padding:40px 16px 48px;}
  .section{padding:48px 0;}
  .scene-grid{grid-template-columns:1fr;gap:18px;}
  .form-card{padding:24px;}
  .footer-grid{grid-template-columns:1fr;gap:28px;padding-bottom:32px;}
  .footer-bottom{flex-direction:column;align-items:flex-start;}
  .float-cta{display:none;}
  .mobile-bar{
    display:grid;grid-template-columns:1fr 1fr;gap:10px;
    position:fixed;left:0;right:0;bottom:0;z-index:1025;
    padding:8px 16px;min-height:56px;
    background:rgba(255,255,255,.96);border-top:1px solid var(--line);
    box-shadow:0 -6px 20px -14px rgba(18,33,31,.35);
  }
  .mobile-bar .btn-x{height:44px;padding:0 12px;font-size:15px;}
  body{padding-bottom:64px;}
}

/* roulang page: category3 */
:root{
  --brand-700:#0F4A43;
  --brand-600:#14655B;
  --brand-100:#E4F0EC;
  --accent-600:#C97A2B;
  --accent-100:#FBEEE0;
  --bg:#F7F4EE;
  --surface:#FFFFFF;
  --ink-900:#12211F;
  --ink-700:#2E423F;
  --ink-500:#5A6B67;
  --line:#E4DFD5;
  --ring:rgba(20,101,91,.28);
  --r-sm:8px;
  --r-md:12px;
  --r-lg:18px;
  --r-pill:999px;
  --sh-1:0 1px 2px rgba(18,33,31,.05), 0 8px 24px -12px rgba(18,33,31,.18);
  --sh-2:0 12px 32px -14px rgba(18,33,31,.28);
  --t:180ms ease;
  --sp-section:88px;

  --bs-primary:#14655B;
  --bs-primary-rgb:20,101,91;
  --bs-body-font-family:"PingFang SC","HarmonyOS Sans SC","Source Han Sans SC","Noto Sans SC","Microsoft YaHei",sans-serif;
  --bs-body-color:#2E423F;
  --bs-body-bg:#F7F4EE;
  --bs-border-color:#E4DFD5;
  --bs-link-color:#14655B;
  --bs-link-hover-color:#C97A2B;
  --bs-border-radius:12px;
}

*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--bg);
  color:var(--ink-700);
  font-family:"PingFang SC","HarmonyOS Sans SC","Source Han Sans SC","Noto Sans SC","Microsoft YaHei",sans-serif;
  font-size:17px;
  line-height:1.9;
  letter-spacing:0;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;height:auto;display:block;}
a{color:var(--brand-600);text-decoration:none;transition:color var(--t);}
a:hover{color:var(--accent-600);}
p{margin:0 0 1.15em;}
h1,h2,h3,h4,h5{color:var(--ink-900);font-weight:700;line-height:1.35;margin:0 0 .5em;letter-spacing:0;}
h1{font-size:clamp(30px,4.4vw,46px);letter-spacing:-.01em;}
h2{font-size:clamp(24px,3vw,32px);}
h3{font-size:20px;}
h4{font-size:17px;}
ul,ol{margin:0 0 1.15em;padding-left:1.2em;}
li{margin-bottom:8px;line-height:1.85;}
button,input,textarea,select{font:inherit;color:inherit;}
button{background:none;border:0;cursor:pointer;}
:focus-visible{outline:3px solid var(--ring);outline-offset:2px;border-radius:var(--r-sm);}

.container-x{width:100%;max-width:1200px;margin:0 auto;padding:0 24px;}
.reading{max-width:820px;margin-left:auto;margin-right:auto;}
.section{padding:var(--sp-section) 0;}
.section-alt{background:var(--surface);}
.section-line{border-top:1px solid var(--line);}
[id]{scroll-margin-top:96px;}

.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;font-weight:600;color:var(--brand-600);
  background:var(--brand-100);border:1px solid rgba(20,101,91,.14);
  padding:5px 14px;border-radius:var(--r-pill);margin-bottom:18px;
}
.eyebrow i{font-size:12px;color:var(--accent-600);}
.lead{font-size:17px;color:var(--ink-500);max-width:640px;line-height:1.9;}
.section-head{max-width:760px;margin-bottom:40px;}
.section-head.center{margin-left:auto;margin-right:auto;text-align:center;}
.section-head.center .lead{margin-left:auto;margin-right:auto;}

/* ============ 顶部导航 ============ */
.site-header{
  position:sticky;top:0;z-index:1030;
  background:rgba(255,255,255,.96);
  border-bottom:1px solid var(--line);
  backdrop-filter:saturate(120%) blur(6px);
  transition:box-shadow var(--t);
}
.site-header.is-scrolled{box-shadow:var(--sh-1);}
.header-inner{
  display:grid;
  grid-template-columns:auto 1fr auto;
  align-items:center;
  gap:28px;
  min-height:72px;
}
.brand{display:inline-flex;align-items:center;gap:10px;color:var(--brand-700);flex:0 0 auto;}
.brand:hover{color:var(--brand-700);}
.brand-mark{
  width:36px;height:36px;border-radius:50%;
  display:grid;place-items:center;
  background:var(--brand-600);color:#fff;
  font-weight:700;font-size:18px;line-height:1;
  box-shadow:0 0 0 4px var(--brand-100);
}
.brand-text{font-weight:700;font-size:19px;letter-spacing:0;}

.chip-nav{
  display:flex;align-items:center;gap:10px;
  overflow-x:auto;white-space:nowrap;
  scrollbar-width:none;-ms-overflow-style:none;
  padding:6px 2px;
}
.chip-nav::-webkit-scrollbar{display:none;}
.chip{
  display:inline-flex;align-items:center;
  height:38px;padding:0 18px;
  border:1px solid var(--line);border-radius:var(--r-pill);
  background:var(--surface);color:var(--ink-700);
  font-size:15px;font-weight:600;
  transition:all var(--t);
}
.chip:hover{border-color:var(--brand-600);color:var(--brand-600);transform:translateY(-1px);}
.chip.active{background:var(--brand-600);border-color:var(--brand-600);color:#fff;box-shadow:var(--sh-1);}

.header-cta{display:flex;align-items:center;gap:14px;flex:0 0 auto;}
.btn-primary-x{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 28px;
  background:var(--brand-600);color:#fff;font-weight:600;font-size:16px;
  border:1px solid var(--brand-600);border-radius:var(--r-md);
  transition:all var(--t);
}
.btn-primary-x:hover{background:var(--brand-700);border-color:var(--brand-700);color:#fff;transform:translateY(-1px);box-shadow:var(--sh-2);}
.btn-outline-x{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 26px;
  background:transparent;color:var(--brand-600);font-weight:600;font-size:16px;
  border:1px solid var(--brand-600);border-radius:var(--r-md);
  transition:all var(--t);
}
.btn-outline-x:hover{background:var(--brand-100);color:var(--brand-700);transform:translateY(-1px);}
.btn-ghost-x{
  display:inline-flex;align-items:center;gap:6px;
  color:var(--brand-600);font-weight:600;font-size:15px;
}
.btn-ghost-x i{transition:transform var(--t);}
.btn-ghost-x:hover i{transform:translateX(4px);}
.header-cta .btn-primary-x{height:44px;padding:0 22px;font-size:15px;}
.nav-toggle{
  display:none;width:44px;height:44px;border:1px solid var(--line);
  border-radius:var(--r-md);color:var(--brand-700);background:var(--surface);
  align-items:center;justify-content:center;font-size:18px;
}

/* 移动端抽屉 */
.offcanvas-x{background:var(--surface);color:var(--ink-700);width:300px;}
.offcanvas-x .offcanvas-header{border-bottom:1px solid var(--line);}
.offcanvas-x .drawer-nav{display:flex;flex-direction:column;gap:10px;padding:20px;}
.offcanvas-x .drawer-nav .chip{height:46px;justify-content:flex-start;width:100%;border-radius:var(--r-md);padding:0 18px;}
.drawer-foot{margin-top:auto;padding:20px;border-top:1px solid var(--line);}
.drawer-foot .btn-primary-x{width:100%;}

/* ============ 小 Hero ============ */
.page-hero{
  position:relative;
  padding:56px 0 60px;
  background:var(--bg);
  border-bottom:1px solid var(--line);
  overflow:hidden;
}
.page-hero::before{
  content:"";position:absolute;inset:0;
  background-image:linear-gradient(rgba(18,33,31,.045) 1px,transparent 1px),
                   linear-gradient(90deg,rgba(18,33,31,.045) 1px,transparent 1px);
  background-size:56px 56px;
  pointer-events:none;
}
.page-hero::after{
  content:"";position:absolute;width:520px;height:520px;right:-120px;top:-220px;
  background:radial-gradient(circle,rgba(201,122,43,.13),rgba(201,122,43,0) 68%);
  pointer-events:none;
}
.page-hero .container-x{position:relative;z-index:2;}
.hero-grid{display:grid;grid-template-columns:1fr .78fr;gap:48px;align-items:center;}
.hero-copy h1{margin-bottom:16px;}
.hero-copy h1 .hl{color:var(--brand-600);}
.hero-points{list-style:none;padding:0;margin:24px 0 0;display:flex;flex-wrap:wrap;gap:10px 22px;}
.hero-points li{margin:0;display:inline-flex;align-items:center;gap:8px;font-size:15px;color:var(--ink-700);font-weight:600;}
.hero-points i{color:var(--accent-600);font-size:13px;}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:26px;}
.hero-media{position:relative;}
.hero-media .frame{
  border-radius:var(--r-lg);overflow:hidden;border:1px solid var(--line);
  box-shadow:var(--sh-1);aspect-ratio:16/10;background:var(--brand-100);
}
.hero-media .frame img{width:100%;height:100%;object-fit:cover;}
.hero-media .float-card{
  position:absolute;right:-14px;bottom:-22px;width:46%;
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-md);
  box-shadow:var(--sh-2);padding:14px 16px;
}
.hero-media .float-card strong{display:block;color:var(--brand-700);font-size:15px;}
.hero-media .float-card span{font-size:13px;color:var(--ink-500);}

/* 面包屑 */
.crumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--ink-500);padding:20px 0 0;}
.crumb a{color:var(--ink-500);}
.crumb a:hover{color:var(--brand-600);}
.crumb .sep{color:var(--line);}
.crumb .cur{color:var(--ink-700);font-weight:600;}

/* ============ 对照表 ============ */
.cmp-wrap{
  border:1px solid var(--line);border-radius:var(--r-lg);
  background:var(--surface);overflow:hidden;box-shadow:var(--sh-1);
}
.cmp-scroll{overflow-x:auto;-webkit-overflow-scrolling:touch;}
.cmp-table{width:100%;min-width:760px;border-collapse:separate;border-spacing:0;margin:0;}
.cmp-table thead th{
  background:var(--brand-100);
  color:var(--brand-700);
  font-size:15px;font-weight:700;
  height:60px;padding:0 22px;
  text-align:left;vertical-align:middle;
  border-bottom:1px solid var(--line);
  white-space:nowrap;
}
.cmp-table thead th .th-sub{display:block;font-size:12px;font-weight:500;color:var(--ink-500);}
.cmp-table tbody tr{--row:#FFFFFF;background:var(--row);}
.cmp-table tbody tr:nth-child(even){--row:var(--bg);}
.cmp-table tbody td{
  height:56px;padding:14px 22px;
  background:inherit;
  font-size:15px;color:var(--ink-700);line-height:1.7;
  border-bottom:1px solid var(--line);
  vertical-align:middle;
}
.cmp-table tbody tr:last-child td{border-bottom:0;}
.cmp-table tbody td:first-child{
  position:sticky;left:0;z-index:2;
  font-weight:700;color:var(--ink-900);white-space:nowrap;
  border-right:1px solid var(--line);
}
.cmp-table tbody td.cell-strong{color:var(--brand-700);font-weight:600;}
.cmp-table .tag-cell{display:inline-block;font-size:13px;font-weight:600;color:var(--accent-600);background:var(--accent-100);border-radius:6px;padding:2px 9px;margin-right:8px;}
.cmp-wrap .cmp-foot{
  display:flex;flex-wrap:wrap;gap:12px;align-items:center;justify-content:space-between;
  padding:18px 22px;border-top:1px solid var(--line);background:var(--surface);
}
.cmp-wrap .cmp-foot p{margin:0;font-size:13px;color:var(--ink-500);}
.cmp-note{margin-top:18px;font-size:13px;color:var(--ink-500);}

/* ============ 图文两栏 ============ */
.split{display:grid;grid-template-columns:1fr 1fr;gap:44px;align-items:center;}
.split.reverse .split-media{order:2;}
.split-media{border-radius:var(--r-lg);overflow:hidden;border:1px solid var(--line);box-shadow:var(--sh-1);}
.split-media img{width:100%;aspect-ratio:16/10;object-fit:cover;}
.mini-list{list-style:none;padding:0;margin:22px 0 0;}
.mini-list li{display:flex;gap:12px;align-items:flex-start;margin-bottom:14px;}
.mini-list .num{
  flex:0 0 auto;width:28px;height:28px;border-radius:6px;
  background:var(--accent-100);color:var(--accent-600);
  font-size:13px;font-weight:700;display:grid;place-items:center;margin-top:5px;
}
.mini-list strong{display:block;color:var(--ink-900);font-size:16px;}
.mini-list span{font-size:14px;color:var(--ink-500);line-height:1.8;}

/* ============ 卡片网格 ============ */
.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;}
.grid-2{display:grid;grid-template-columns:repeat(2,1fr);gap:24px;}
.card-x{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-lg);
  padding:26px;box-shadow:var(--sh-1);transition:all var(--t);height:100%;
}
.card-x:hover{transform:translateY(-2px);box-shadow:var(--sh-2);}
.card-x h3{margin-bottom:10px;}
.card-x h3 a{color:var(--ink-900);}
.card-x:hover h3 a{color:var(--brand-600);}
.card-x p{font-size:15px;color:var(--ink-500);margin-bottom:14px;}
.card-x .card-tag{
  display:inline-block;font-size:13px;font-weight:600;color:var(--brand-600);
  background:var(--brand-100);border-radius:var(--r-pill);padding:3px 12px;margin-bottom:14px;
}

/* ============ FAQ ============ */
.faq-grid{display:grid;grid-template-columns:.72fr 1.28fr;gap:48px;align-items:start;}
.faq-side{position:sticky;top:104px;}
.accordion-x .accordion-item{
  background:transparent;border:0;border-bottom:1px solid var(--line);
}
.accordion-x .accordion-button{
  background:transparent;color:var(--ink-900);
  font-size:17px;font-weight:700;line-height:1.6;
  padding:22px 44px 22px 18px;
  border-radius:0;box-shadow:none;
  position:relative;
}
.accordion-x .accordion-button::before{
  content:"";position:absolute;left:0;top:24px;bottom:24px;width:4px;
  background:transparent;border-radius:4px;transition:background var(--t);
}
.accordion-x .accordion-button:not(.collapsed)::before{background:var(--accent-600);}
.accordion-x .accordion-button:not(.collapsed){color:var(--ink-900);background:transparent;box-shadow:none;}
.accordion-x .accordion-button:focus{box-shadow:none;border-color:transparent;}
.accordion-x .accordion-button::after{
  background-image:none;content:"\f078";
  font-family:"Font Awesome 6 Free";font-weight:900;
  color:var(--brand-600);font-size:13px;
  width:auto;height:auto;transition:transform var(--t);
  position:absolute;right:14px;top:50%;transform:translateY(-50%) rotate(0deg);
}
.accordion-x .accordion-button:not(.collapsed)::after{transform:translateY(-50%) rotate(180deg);}
.accordion-x .accordion-body{
  padding:0 44px 22px 18px;font-size:15px;line-height:1.85;color:var(--ink-500);
}

/* ============ 相关栏目 chip ============ */
.related-links{display:flex;flex-wrap:wrap;gap:12px;margin-top:22px;}
.related-links a{
  display:inline-flex;align-items:center;gap:8px;
  height:42px;padding:0 20px;border:1px solid var(--line);border-radius:var(--r-pill);
  background:var(--surface);color:var(--ink-700);font-size:15px;font-weight:600;
  transition:all var(--t);
}
.related-links a:hover{border-color:var(--brand-600);color:var(--brand-600);transform:translateY(-1px);box-shadow:var(--sh-1);}

/* ============ CTA ============ */
.cta-band{
  background:var(--brand-700);color:#fff;border-radius:var(--r-lg);
  padding:48px;display:grid;grid-template-columns:1.05fr .95fr;gap:44px;align-items:center;
  position:relative;overflow:hidden;
}
.cta-band::after{
  content:"";position:absolute;width:420px;height:420px;right:-140px;bottom:-220px;
  background:radial-gradient(circle,rgba(201,122,43,.35),rgba(201,122,43,0) 70%);
}
.cta-band h2,.cta-band h3{color:#fff;position:relative;z-index:2;}
.cta-band p{color:rgba(255,255,255,.82);position:relative;z-index:2;margin-bottom:0;}
.cta-band .cta-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:22px;position:relative;z-index:2;}
.cta-band .btn-light-x{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 28px;background:#fff;color:var(--brand-700);
  border:1px solid #fff;border-radius:var(--r-md);font-weight:600;transition:all var(--t);
}
.cta-band .btn-light-x:hover{background:var(--accent-100);border-color:var(--accent-100);color:var(--brand-700);transform:translateY(-1px);}
.cta-band .btn-ghost-light{
  display:inline-flex;align-items:center;gap:8px;height:48px;padding:0 22px;
  border:1px solid rgba(255,255,255,.45);border-radius:var(--r-md);
  color:#fff;font-weight:600;transition:all var(--t);
}
.cta-band .btn-ghost-light:hover{background:rgba(255,255,255,.12);color:#fff;}
.form-card{
  background:var(--surface);border-radius:var(--r-lg);padding:30px;
  box-shadow:var(--sh-2);position:relative;z-index:2;
}
.form-card h4{margin-bottom:6px;}
.form-card .form-hint{font-size:13px;color:var(--ink-500);margin-bottom:18px;}
.form-field{margin-bottom:16px;}
.form-field label{display:block;font-size:14px;font-weight:600;color:var(--ink-700);margin-bottom:7px;}
.form-field input,.form-field textarea{
  width:100%;height:48px;padding:0 14px;background:#fff;
  border:1px solid var(--line);border-radius:var(--r-md);
  font-size:15px;color:var(--ink-900);transition:all var(--t);
}
.form-field textarea{height:auto;min-height:96px;padding:12px 14px;line-height:1.7;resize:vertical;}
.form-field input:focus,.form-field textarea:focus{
  outline:none;border-color:var(--brand-600);box-shadow:0 0 0 3px var(--ring);
}
.form-field .err{display:none;font-size:13px;color:var(--accent-600);margin-top:6px;}
.form-field.has-error input,.form-field.has-error textarea{border-color:var(--accent-600);}
.form-field.has-error .err{display:block;}
.form-card .btn-primary-x{width:100%;}
.form-msg{display:none;margin-top:14px;font-size:14px;font-weight:600;color:var(--brand-600);}
.form-msg.show{display:block;}

/* ============ 页脚 ============ */
.site-footer{background:var(--surface);border-top:1px solid var(--line);padding:64px 0 0;margin-top:0;}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:36px;}
.footer-brand{display:inline-flex;align-items:center;gap:10px;color:var(--brand-700);font-weight:700;font-size:18px;margin-bottom:14px;}
.footer-brand .brand-mark{width:32px;height:32px;font-size:16px;}
.site-footer p{font-size:14px;color:var(--ink-500);line-height:1.85;margin:0;max-width:340px;}
.site-footer h4{font-size:16px;margin-bottom:16px;}
.site-footer ul{list-style:none;padding:0;margin:0;}
.site-footer li{margin-bottom:10px;font-size:14px;}
.site-footer ul a{color:var(--ink-500);}
.site-footer ul a:hover{color:var(--brand-600);}
.footer-contact li{display:flex;gap:10px;align-items:flex-start;color:var(--ink-500);}
.footer-contact i{color:var(--brand-600);margin-top:6px;font-size:13px;}
.footer-bottom{
  margin-top:48px;border-top:1px solid var(--line);padding:20px 0;
  display:flex;flex-wrap:wrap;gap:12px;align-items:center;justify-content:space-between;
  font-size:13px;color:var(--ink-500);
}
.footer-bottom a{color:var(--ink-500);}
.footer-bottom a:hover{color:var(--brand-600);}

/* ============ 浮动 CTA ============ */
.float-cta{
  position:fixed;right:22px;bottom:110px;z-index:1020;
  display:flex;flex-direction:column;gap:10px;
  opacity:0;visibility:hidden;transform:translateY(10px);
  transition:opacity 300ms ease,transform 300ms ease,visibility 300ms;
}
.float-cta.show{opacity:1;visibility:visible;transform:translateY(0);}
.float-btn{
  display:inline-flex;align-items:center;gap:0;
  height:48px;padding:0 15px;border-radius:var(--r-pill);
  background:var(--brand-600);color:#fff;font-weight:600;font-size:15px;
  box-shadow:var(--sh-2);overflow:hidden;white-space:nowrap;
  transition:all var(--t);max-width:200px;
}
.float-btn i{font-size:16px;flex:0 0 auto;}
.float-btn span{max-width:0;opacity:0;margin-left:0;transition:all var(--t);}
.float-cta:hover .float-btn span,.float-btn:hover span{max-width:140px;opacity:1;margin-left:10px;}
.float-btn:hover{background:var(--brand-700);color:#fff;}
.float-btn.alt{background:var(--accent-600);}
.float-btn.alt:hover{background:#b36720;color:#fff;}
.mobile-bar{display:none;}

/* ============ 响应式 ============ */
@media (max-width:1199.98px){
  .header-inner{gap:18px;}
  .chip{height:36px;padding:0 15px;font-size:14px;}
}
@media (max-width:991.98px){
  :root{--sp-section:64px;}
  .chip-nav{display:none;}
  .nav-toggle{display:inline-flex;}
  .header-cta .btn-primary-x,.header-cta .btn-ghost-x{display:none;}
  .hero-grid{grid-template-columns:1fr;gap:34px;}
  .hero-media .float-card{right:12px;bottom:-18px;width:52%;}
  .split{grid-template-columns:1fr;gap:28px;}
  .split.reverse .split-media{order:0;}
  .faq-grid{grid-template-columns:1fr;gap:26px;}
  .faq-side{position:static;}
  .grid-3{grid-template-columns:repeat(2,1fr);}
  .cta-band{grid-template-columns:1fr;padding:36px;gap:30px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:30px;}
}
@media (max-width:767.98px){
  :root{--sp-section:48px;}
  body{font-size:16px;padding-bottom:0;}
  .container-x{padding:0 16px;}
  .header-inner{min-height:64px;}
  .brand-text{font-size:17px;}
  .page-hero{padding:40px 0 44px;}
  .grid-3,.grid-2{grid-template-columns:1fr;}
  .footer-grid{grid-template-columns:1fr;}
  .cta-band{padding:28px 22px;}
  .form-card{padding:22px;}
  .float-cta{display:none;}
  .mobile-bar{
    display:grid;grid-template-columns:1fr 1fr;gap:10px;
    position:fixed;left:0;right:0;bottom:0;z-index:1035;
    padding:8px 12px;background:rgba(255,255,255,.97);
    border-top:1px solid var(--line);box-shadow:0 -6px 20px -12px rgba(18,33,31,.3);
    opacity:0;visibility:hidden;transform:translateY(100%);
    transition:opacity 300ms ease,transform 300ms ease,visibility 300ms;
  }
  .mobile-bar.show{opacity:1;visibility:visible;transform:translateY(0);}
  .mobile-bar a{
    display:inline-flex;align-items:center;justify-content:center;gap:8px;
    height:44px;border-radius:var(--r-md);font-weight:600;font-size:15px;
    background:var(--brand-600);color:#fff;
  }
  .mobile-bar a.alt{background:var(--surface);color:var(--brand-600);border:1px solid var(--brand-600);}
  .mobile-bar a:hover{color:#fff;}
  .mobile-bar a.alt:hover{color:var(--brand-700);}
  .hero-media .float-card{position:static;width:100%;margin-top:14px;box-shadow:var(--sh-1);}
  .cmp-table{min-width:680px;}
}
@media (max-width:519.98px){
  h1{font-size:28px;}
  h2{font-size:22px;}
  .hero-actions{flex-direction:column;align-items:stretch;}
  .hero-actions .btn-primary-x,.hero-actions .btn-outline-x{width:100%;}
  .accordion-x .accordion-button{font-size:16px;padding:18px 40px 18px 16px;}
  .accordion-x .accordion-body{padding:0 40px 20px 16px;}
  .footer-bottom{flex-direction:column;align-items:flex-start;}
}

/* roulang page: category4 */
:root{
  --brand-700:#0F4A43;
  --brand-600:#14655B;
  --brand-100:#E4F0EC;
  --accent-600:#C97A2B;
  --accent-100:#FBEEE0;
  --bg:#F7F4EE;
  --surface:#FFFFFF;
  --ink-900:#12211F;
  --ink-700:#2E423F;
  --ink-500:#5A6B67;
  --line:#E4DFD5;
  --ring:rgba(20,101,91,.28);
  --r-sm:8px;
  --r-md:12px;
  --r-lg:18px;
  --r-pill:999px;
  --sh-1:0 1px 2px rgba(18,33,31,.05),0 8px 24px -12px rgba(18,33,31,.18);
  --sh-2:0 12px 32px -14px rgba(18,33,31,.28);
  --t:180ms ease;
  --bs-primary:#14655B;
  --bs-body-bg:#F7F4EE;
  --bs-body-color:#2E423F;
  --bs-border-color:#E4DFD5;
  --bs-link-color:#14655B;
  --bs-link-hover-color:#C97A2B;
  --bs-font-sans-serif:"PingFang SC","HarmonyOS Sans SC","Source Han Sans SC","Noto Sans SC","Microsoft YaHei",sans-serif;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:96px;-webkit-text-size-adjust:100%}
body{
  margin:0;
  font-family:"PingFang SC","HarmonyOS Sans SC","Source Han Sans SC","Noto Sans SC","Microsoft YaHei",sans-serif;
  background:var(--bg);
  color:var(--ink-700);
  font-size:17px;
  line-height:1.9;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
h1,h2,h3,h4,h5{color:var(--ink-900);font-weight:700;line-height:1.35;margin:0;letter-spacing:0}
h1{font-size:clamp(30px,4.4vw,46px);letter-spacing:-.01em}
h2{font-size:clamp(24px,3vw,32px)}
h3{font-size:20px}
h4{font-size:17px}
p{margin:0 0 1.15em}
p:last-child{margin-bottom:0}
a{color:var(--brand-600);text-decoration:none;transition:color var(--t)}
a:hover{color:var(--accent-600)}
img{display:block;max-width:100%;height:auto}
ul{margin:0;padding:0;list-style:none}
button,input,textarea{font-family:inherit;font-size:inherit}
a:focus-visible,button:focus-visible,input:focus-visible,textarea:focus-visible{outline:3px solid var(--ring);outline-offset:2px;border-radius:6px}
::selection{background:var(--brand-100);color:var(--brand-700)}

/* 容器 */
.container-x{width:100%;max-width:1200px;margin:0 auto;padding:0 24px}
.section{padding:88px 0}
.section-sm{padding:64px 0}
.band-white{background:var(--surface);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.band-brand{background:var(--brand-700);color:#DCEBE7}
.band-brand h2,.band-brand h3{color:#fff}

/* 顶部导航 */
.site-header{
  position:sticky;top:0;z-index:1030;
  background:rgba(255,255,255,.96);
  backdrop-filter:saturate(120%) blur(6px);
  border-bottom:1px solid var(--line);
  transition:box-shadow var(--t);
}
.site-header.is-scrolled{box-shadow:var(--sh-1)}
.header-inner{
  display:flex;align-items:center;gap:28px;
  min-height:74px;
}
.brand{display:flex;align-items:center;gap:10px;flex:0 0 auto;color:var(--ink-900);font-weight:700}
.brand:hover{color:var(--ink-900)}
.brand-mark{
  width:36px;height:36px;flex:0 0 36px;border-radius:50%;
  display:inline-flex;align-items:center;justify-content:center;
  background:var(--brand-600);color:#fff;font-weight:700;font-size:17px;
  box-shadow:inset 0 0 0 3px rgba(255,255,255,.22);
}
.brand-text{font-size:17px;letter-spacing:.2px;white-space:nowrap}
.chip-nav{
  display:flex;align-items:center;gap:8px;
  overflow-x:auto;scrollbar-width:none;-ms-overflow-style:none;
  margin:0 auto;padding:4px 2px;
}
.chip-nav::-webkit-scrollbar{display:none}
.chip{
  flex:0 0 auto;display:inline-flex;align-items:center;
  padding:8px 18px;border:1px solid var(--line);border-radius:var(--r-pill);
  background:#fff;color:var(--ink-700);font-size:14px;line-height:1.4;
  white-space:nowrap;transition:all var(--t);
}
.chip:hover{border-color:var(--brand-600);color:var(--brand-600);background:var(--brand-100)}
.chip.active{background:var(--brand-600);border-color:var(--brand-600);color:#fff;font-weight:600}
.header-actions{display:flex;align-items:center;gap:12px;flex:0 0 auto;margin-left:8px}
.nav-toggle{
  width:44px;height:44px;border:1px solid var(--line);border-radius:var(--r-md);
  background:#fff;color:var(--brand-700);display:inline-flex;align-items:center;justify-content:center;
  transition:all var(--t);
}
.nav-toggle:hover{background:var(--brand-100);border-color:var(--brand-600)}

/* 按钮 */
.btn-main,.btn-outline,.btn-ghost{display:inline-flex;align-items:center;justify-content:center;gap:8px;font-weight:600;cursor:pointer;transition:all var(--t);text-align:center}
.btn-main{
  height:48px;padding:0 28px;border-radius:var(--r-md);
  background:var(--brand-600);border:1px solid var(--brand-600);color:#fff;font-size:15px;
}
.btn-main:hover{background:var(--brand-700);border-color:var(--brand-700);color:#fff;transform:translateY(-1px);box-shadow:var(--sh-2)}
.btn-main:active{transform:translateY(0)}
.btn-outline{
  height:48px;padding:0 26px;border-radius:var(--r-md);
  background:transparent;border:1px solid var(--brand-600);color:var(--brand-600);font-size:15px;
}
.btn-outline:hover{background:var(--brand-100);color:var(--brand-700)}
.btn-ghost{
  height:auto;padding:0;border:0;background:transparent;color:var(--brand-600);font-size:15px;
}
.btn-ghost i{transition:transform var(--t)}
.btn-ghost:hover{color:var(--accent-600)}
.btn-ghost:hover i{transform:translateX(4px)}
.btn-sm-x{height:42px;padding:0 20px;font-size:14px}

/* Hero */
.page-hero{
  position:relative;
  padding:64px 0 52px;
  background:
    radial-gradient(680px 340px at 88% -10%, rgba(20,101,91,.10), transparent 70%),
    radial-gradient(520px 280px at 4% 110%, rgba(201,122,43,.10), transparent 72%),
    var(--bg);
  border-bottom:1px solid var(--line);
  overflow:hidden;
}
.page-hero::before{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:linear-gradient(to right, rgba(18,33,31,.05) 1px, transparent 1px),
                   linear-gradient(to bottom, rgba(18,33,31,.05) 1px, transparent 1px);
  background-size:56px 56px;
  opacity:.55;
  mask-image:linear-gradient(to bottom, rgba(0,0,0,.6), transparent 82%);
}
.page-hero .container-x{position:relative;z-index:2}
.hero-grid{display:grid;grid-template-columns:1fr 1fr;gap:48px;align-items:center}
.hero-tag{
  display:inline-flex;align-items:center;gap:8px;
  padding:6px 14px;border-radius:var(--r-pill);
  background:var(--accent-100);color:var(--accent-600);
  font-size:13px;font-weight:600;letter-spacing:.4px;margin-bottom:18px;
}
.hero-tag::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--accent-600)}
.page-hero h1{margin-bottom:16px}
.hero-sub{font-size:17px;color:var(--ink-500);max-width:34em;margin-bottom:26px}
.hero-cta{display:flex;flex-wrap:wrap;gap:14px}
.hero-media{position:relative}
.hero-media img{
  width:100%;aspect-ratio:16/10;object-fit:cover;
  border-radius:var(--r-lg);border:1px solid var(--line);box-shadow:var(--sh-1);
}
.hero-media .media-note{
  position:absolute;right:-14px;bottom:-18px;width:44%;
  background:#fff;border:1px solid var(--line);border-radius:var(--r-md);
  box-shadow:var(--sh-2);padding:14px 16px;
}
.hero-media .media-note strong{display:block;color:var(--ink-900);font-size:15px;margin-bottom:2px}
.hero-media .media-note span{font-size:13px;color:var(--ink-500);line-height:1.6;display:block}
.breadcrumb-x{
  display:flex;align-items:center;gap:10px;flex-wrap:wrap;
  margin-top:36px;font-size:13px;color:var(--ink-500);
}
.breadcrumb-x a{color:var(--ink-500)}
.breadcrumb-x a:hover{color:var(--brand-600)}
.breadcrumb-x .current{color:var(--ink-900);font-weight:600}
.breadcrumb-x span.sep{color:var(--line)}

/* 通用标题区 */
.sec-head{max-width:760px;margin-bottom:44px}
.sec-head .eyebrow{
  display:inline-block;font-size:13px;font-weight:600;color:var(--accent-600);
  letter-spacing:1px;margin-bottom:10px;
}
.sec-head h2{margin-bottom:14px}
.sec-head p{color:var(--ink-500);margin:0;font-size:16px}
.sec-head.center{margin-left:auto;margin-right:auto;text-align:center}

/* 亮点小卡 */
.mini-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.mini-card{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-lg);
  padding:26px;transition:all var(--t);
}
.mini-card:hover{transform:translateY(-2px);box-shadow:var(--sh-2);border-color:#D8D2C6}
.mini-card .num{
  display:inline-flex;align-items:center;justify-content:center;
  width:38px;height:38px;border-radius:6px;
  background:var(--accent-100);color:var(--accent-600);
  font-weight:700;font-size:15px;margin-bottom:16px;
}
.mini-card h3{font-size:18px;margin-bottom:10px}
.mini-card p{font-size:15px;line-height:1.85;color:var(--ink-500);margin:0}

/* 杂志双栏 */
.mag-row{
  display:grid;grid-template-columns:7fr 5fr;gap:44px;align-items:center;
}
.mag-row.reverse{grid-template-columns:5fr 7fr}
.mag-row + .mag-row{margin-top:72px}
.mag-media img{
  width:100%;aspect-ratio:16/11;object-fit:cover;
  border-radius:var(--r-lg);border:1px solid var(--line);box-shadow:var(--sh-1);
}
.mag-body h2{margin-bottom:16px;font-size:clamp(22px,2.4vw,28px)}
.mag-body .lead-line{
  font-size:16px;color:var(--brand-600);font-weight:600;margin-bottom:12px;
}
.mag-body p{font-size:16px;color:var(--ink-700)}
.check-list{margin-top:22px;display:grid;gap:12px}
.check-list li{
  display:flex;gap:12px;align-items:flex-start;
  font-size:15px;color:var(--ink-700);line-height:1.8;
}
.check-list li i{
  flex:0 0 auto;margin-top:6px;color:var(--brand-600);font-size:13px;
}

/* 变动类型卡 */
.type-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.type-card{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-lg);
  padding:28px;display:flex;flex-direction:column;
  transition:all var(--t);
}
.type-card:hover{transform:translateY(-2px);box-shadow:var(--sh-2)}
.type-card .tag{
  align-self:flex-start;padding:4px 12px;border-radius:var(--r-pill);
  background:var(--brand-100);color:var(--brand-700);
  font-size:13px;font-weight:600;margin-bottom:16px;
}
.type-card h3{margin-bottom:12px;font-size:19px}
.type-card p{font-size:15px;color:var(--ink-500);line-height:1.85}
.type-card ul{margin-top:14px;display:grid;gap:8px}
.type-card ul li{font-size:14px;color:var(--ink-500);display:flex;gap:8px}
.type-card ul li::before{content:"·";color:var(--accent-600);font-weight:700}

/* 时间线 */
.timeline{position:relative;padding-left:34px;max-width:900px}
.timeline::before{
  content:"";position:absolute;left:9px;top:8px;bottom:8px;width:2px;background:var(--line);
}
.tl-item{position:relative;padding-bottom:34px}
.tl-item:last-child{padding-bottom:0}
.tl-item::before{
  content:"";position:absolute;left:-31px;top:9px;
  width:12px;height:12px;border-radius:50%;
  background:var(--accent-600);box-shadow:0 0 0 4px var(--accent-100);
}
.tl-item h3{font-size:18px;margin-bottom:8px}
.tl-item p{font-size:15px;color:var(--ink-500);margin:0;max-width:62em}
.tl-step{
  display:inline-block;font-size:13px;font-weight:600;color:var(--brand-600);
  letter-spacing:.6px;margin-bottom:6px;
}

/* FAQ */
.faq-wrap{display:grid;grid-template-columns:4fr 8fr;gap:56px;align-items:start}
.faq-side{position:sticky;top:110px}
.faq-side h2{margin-bottom:14px}
.faq-side p{font-size:15px;color:var(--ink-500)}
.faq-acc .accordion-item{
  border:0;border-bottom:1px solid var(--line);background:transparent;
}
.faq-acc .accordion-item:first-of-type{border-top:1px solid var(--line)}
.faq-acc .accordion-button{
  position:relative;
  background:transparent;color:var(--ink-900);font-weight:600;font-size:17px;
  padding:22px 46px 22px 20px;border-radius:0;box-shadow:none;
  transition:all var(--t);
}
.faq-acc .accordion-button:not(.collapsed){color:var(--ink-900);background:transparent;box-shadow:none}
.faq-acc .accordion-button:focus{box-shadow:none;outline:3px solid var(--ring);outline-offset:-3px;border-radius:6px}
.faq-acc .accordion-button::before{
  content:"";position:absolute;left:0;top:16px;bottom:16px;width:4px;border-radius:2px;
  background:var(--accent-600);opacity:0;transition:opacity var(--t);
}
.faq-acc .accordion-button:not(.collapsed)::before{opacity:1}
.faq-acc .accordion-button::after{
  content:"\f078";font-family:"Font Awesome 6 Free";font-weight:900;
  background-image:none;width:auto;height:auto;font-size:12px;color:var(--ink-500);
  display:flex;align-items:center;justify-content:center;
  transform:none;transition:transform var(--t),color var(--t);
}
.faq-acc .accordion-button:not(.collapsed)::after{transform:rotate(180deg);color:var(--accent-600)}
.faq-acc .accordion-body{
  padding:0 46px 24px 20px;font-size:15px;line-height:1.85;color:var(--ink-500);
}

/* 相关栏目 */
.relate-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.relate-card{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-lg);
  padding:24px;display:block;color:var(--ink-700);transition:all var(--t);
}
.relate-card:hover{transform:translateY(-2px);box-shadow:var(--sh-2);color:var(--ink-700);border-color:#D8D2C6}
.relate-card .rc-icon{
  width:40px;height:40px;border-radius:var(--r-sm);
  background:var(--brand-100);color:var(--brand-700);
  display:inline-flex;align-items:center;justify-content:center;font-size:16px;margin-bottom:16px;
}
.relate-card h3{font-size:17px;margin-bottom:8px;transition:color var(--t)}
.relate-card:hover h3{color:var(--brand-600)}
.relate-card p{font-size:14px;color:var(--ink-500);line-height:1.8;margin:0}

/* CTA + 表单 */
.cta-block{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-lg);
  box-shadow:var(--sh-2);padding:44px;
  display:grid;grid-template-columns:1fr 1fr;gap:48px;align-items:start;
}
.cta-copy h2{margin-bottom:14px}
.cta-copy p{font-size:16px;color:var(--ink-500)}
.cta-points{display:grid;gap:10px;margin-top:20px}
.cta-points li{display:flex;gap:10px;font-size:15px;color:var(--ink-700)}
.cta-points li i{color:var(--brand-600);margin-top:6px;font-size:13px}
.form-field{margin-bottom:18px}
.form-field label{display:block;font-size:14px;font-weight:600;color:var(--ink-700);margin-bottom:8px}
.form-field input,.form-field textarea{
  width:100%;border:1px solid var(--line);border-radius:var(--r-md);
  background:#fff;padding:0 16px;height:48px;color:var(--ink-900);
  transition:border-color var(--t),box-shadow var(--t);
}
.form-field textarea{height:118px;padding:12px 16px;line-height:1.7;resize:vertical}
.form-field input::placeholder,.form-field textarea::placeholder{color:#9AA7A3}
.form-field input:focus,.form-field textarea:focus{
  outline:none;border-color:var(--brand-600);box-shadow:0 0 0 3px var(--ring);
}
.form-hint{font-size:13px;color:var(--ink-500);margin-top:12px}

/* 浮动 CTA */
.float-cta{
  position:fixed;right:22px;bottom:32px;z-index:1040;
  display:flex;flex-direction:column;gap:10px;
  opacity:0;visibility:hidden;transform:translateY(12px);
  transition:opacity var(--t),transform var(--t),visibility var(--t);
}
.float-cta.show{opacity:1;visibility:visible;transform:translateY(0)}
.float-item{
  display:flex;align-items:center;gap:0;height:46px;padding:0 14px;
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-pill);
  box-shadow:var(--sh-1);color:var(--ink-700);font-size:14px;font-weight:600;
  transition:all var(--t);overflow:hidden;white-space:nowrap;
}
.float-item i{color:var(--brand-600);font-size:15px;width:18px;text-align:center}
.float-item span{
  max-width:0;opacity:0;margin-left:0;
  transition:max-width var(--t),opacity var(--t),margin-left var(--t);
}
.float-item:hover{color:var(--brand-700);border-color:var(--brand-600);box-shadow:var(--sh-2)}
.float-item:hover span{max-width:120px;opacity:1;margin-left:10px}

/* 页脚 */
.site-footer{background:var(--brand-700);color:#CFE2DD;padding:64px 0 0;margin-top:0}
.site-footer h4{color:#fff;font-size:16px;margin-bottom:18px}
.footer-grid{
  display:grid;grid-template-columns:1.6fr 1fr 1fr 1.2fr;gap:40px;
  padding-bottom:44px;border-bottom:1px solid rgba(255,255,255,.14);
}
.footer-brand{display:flex;align-items:center;gap:10px;color:#fff;font-weight:700;font-size:17px;margin-bottom:16px}
.footer-brand .brand-mark{background:#fff;color:var(--brand-700);box-shadow:none}
.site-footer p{font-size:14px;line-height:1.9;color:#B9D2CC;max-width:34em}
.site-footer ul{display:grid;gap:10px}
.site-footer ul li a{color:#CFE2DD;font-size:14px}
.site-footer ul li a:hover{color:#fff}
.footer-contact li{display:flex;gap:10px;font-size:14px;color:#B9D2CC;align-items:flex-start}
.footer-contact li i{color:#8FCFC1;margin-top:6px;font-size:13px}
.footer-bottom{
  display:flex;justify-content:space-between;align-items:center;flex-wrap:wrap;gap:12px;
  padding:20px 0 26px;font-size:13px;color:#9FBDB6;
}
.footer-bottom a{color:#CFE2DD}
.footer-bottom a:hover{color:#fff}

/* 抽屉导航 */
.offcanvas{border-left:1px solid var(--line)}
.offcanvas-header{border-bottom:1px solid var(--line);padding:18px 22px}
.offcanvas-title{font-size:16px;font-weight:700;color:var(--ink-900)}
.drawer-chips{display:grid;gap:10px;margin-bottom:24px}
.drawer-chips .chip{width:100%;justify-content:flex-start;padding:12px 18px;font-size:15px;border-radius:var(--r-md)}

/* 响应式 */
@media (max-width:1199.98px){
  .hero-grid{gap:36px}
  .faq-wrap{gap:40px}
}
@media (max-width:991.98px){
  .section{padding:64px 0}
  .section-sm{padding:52px 0}
  .header-inner{gap:16px;min-height:68px}
  .chip-nav{display:none}
  .hero-grid{grid-template-columns:1fr;gap:32px}
  .page-hero{padding:48px 0 40px}
  .hero-media .media-note{position:static;width:100%;margin-top:16px;box-shadow:var(--sh-1)}
  .mini-grid,.type-grid{grid-template-columns:1fr 1fr}
  .mag-row,.mag-row.reverse{grid-template-columns:1fr;gap:28px}
  .mag-row + .mag-row{margin-top:56px}
  .mag-row.reverse .mag-media{order:2}
  .faq-wrap{grid-template-columns:1fr;gap:28px}
  .faq-side{position:static}
  .relate-grid{grid-template-columns:1fr 1fr}
  .cta-block{grid-template-columns:1fr;gap:32px;padding:32px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
}
@media (max-width:767.98px){
  body{font-size:16px;padding-bottom:64px}
  .container-x{padding:0 16px}
  .section{padding:48px 0}
  .section-sm{padding:44px 0}
  .mini-grid,.type-grid,.relate-grid{grid-template-columns:1fr}
  .mini-card,.type-card{padding:22px}
  .sec-head{margin-bottom:32px}
  .hero-cta{flex-direction:column;align-items:stretch}
  .hero-cta .btn-main,.hero-cta .btn-outline{width:100%}
  .timeline{padding-left:28px}
  .tl-item::before{left:-25px}
  .faq-acc .accordion-button{font-size:16px;padding:18px 40px 18px 16px}
  .faq-acc .accordion-body{padding:0 24px 20px 16px}
  .cta-block{padding:24px}
  .footer-grid{grid-template-columns:1fr;gap:28px}
  .float-cta{
    right:0;left:0;bottom:0;flex-direction:row;gap:0;
    padding:8px 12px;background:rgba(255,255,255,.97);
    border-top:1px solid var(--line);box-shadow:0 -6px 20px -12px rgba(18,33,31,.28);
  }
  .float-cta .float-item{
    flex:1 1 0;justify-content:center;border-radius:var(--r-md);
    height:44px;box-shadow:none;
  }
  .float-cta .float-item span{max-width:none;opacity:1;margin-left:8px}
}
@media (max-width:519.98px){
  .brand-text{font-size:15px}
  h1{font-size:28px}
  .page-hero{padding:36px 0 32px}
}