/* roulang page: index */
/* ============ 设计变量 ============ */
:root{
  --brand:#0F3D3A;
  --brand-deep:#082925;
  --brand-soft:#EAF2F0;
  --accent:#E07B2C;
  --accent-soft:#F6C77A;
  --bg:#F7F5F0;
  --card:#FFFFFF;
  --ink:#14201D;
  --ink-2:#4A5754;
  --line:#E2DED5;
  --ok:#2F7A5A;
  --warn:#B4552D;
  --info:#2E6E8E;
  --r-sm:8px;
  --r-md:14px;
  --r-lg:22px;
  --r-pill:999px;
  --sh-1:0 1px 2px rgba(20,32,29,.05);
  --sh-2:0 12px 28px -14px rgba(11,43,39,.22);
  --nav-h:64px;
  --bs-primary:#0F3D3A;
  --bs-primary-rgb:15,61,58;
  --bs-link-color:#0F3D3A;
  --bs-link-hover-color:#E07B2C;
  --bs-body-bg:#F7F5F0;
  --bs-body-color:#14201D;
  --bs-border-radius:14px;
  --bs-body-font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC",system-ui,sans-serif;
}
/* ============ 基础 ============ */
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:88px}
body{
  margin:0;
  font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,sans-serif;
  font-size:16.5px;
  line-height:1.85;
  color:var(--ink);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{max-width:100%;display:block}
a{color:var(--brand);text-decoration:none;transition:color .18s ease}
a:hover{color:var(--accent)}
h1,h2,h3,h4{font-weight:700;color:var(--ink);line-height:1.32}
p{margin:0 0 1em}
ul{margin:0;padding:0;list-style:none}
button{font-family:inherit}
:focus-visible{outline:2px solid var(--accent-soft);outline-offset:2px;border-radius:4px}
.container{width:100%;max-width:1220px !important;padding-inline:20px;margin-inline:auto}
.num{font-variant-numeric:tabular-nums;font-feature-settings:"tnum"}

.section{padding:88px 0}
.section-tight{padding:64px 0}
@media (max-width:767.98px){.section{padding:56px 0}.section-tight{padding:44px 0}}

.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;font-weight:600;letter-spacing:.06em;color:var(--accent);
}
.eyebrow::before{content:"";width:18px;height:2px;background:var(--accent);display:block;border-radius:2px}
.sec-title{font-size:clamp(22px,3vw,34px);margin:14px 0 0;letter-spacing:-.01em}
.sec-desc{color:var(--ink-2);font-size:16px;margin-top:12px;max-width:640px}
.sec-title.bar{position:relative;padding-left:16px}
.sec-title.bar::before{content:"";position:absolute;left:0;top:.18em;bottom:.18em;width:3px;background:var(--brand);border-radius:2px}

/* ============ 按钮 ============ */
.btn-brand,.btn-ghost,.btn-light-brand,.btn-text{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  font-size:15px;font-weight:600;line-height:1.2;
  border-radius:var(--r-pill);padding:13px 26px;border:1px solid transparent;
  transition:background .18s ease,color .18s ease,border-color .18s ease,transform .18s ease,box-shadow .18s ease;
  cursor:pointer;
}
.btn-brand{background:var(--brand);color:#fff;border-color:var(--brand);box-shadow:var(--sh-1)}
.btn-brand:hover{background:var(--brand-deep);border-color:var(--brand-deep);color:#fff;transform:translateY(-1px);box-shadow:var(--sh-2)}
.btn-ghost{background:transparent;color:var(--brand);border-color:var(--brand)}
.btn-ghost:hover{background:var(--brand-soft);color:var(--brand-deep);border-color:var(--brand);transform:translateY(-1px)}
.btn-light-brand{background:#fff;color:var(--brand);border-color:#fff}
.btn-light-brand:hover{background:var(--brand-soft);color:var(--brand-deep);transform:translateY(-1px)}
.btn-text{background:none;border:none;color:var(--brand);padding:0;border-radius:0;text-decoration:underline;text-underline-offset:5px;text-decoration-thickness:1px}
.btn-text:hover{color:var(--accent)}
.btn-sm-pad{padding:10px 20px;font-size:14px}

/* ============ 徽章 ============ */
.badge-soft{
  display:inline-flex;align-items:center;gap:6px;
  background:var(--brand-soft);color:var(--brand);
  font-size:13px;font-weight:600;padding:5px 13px;border-radius:var(--r-pill);line-height:1.5;
}
.badge-accent{background:rgba(224,123,44,.14);color:#A8551A}

/* ============ 导航 ============ */
.site-header{
  position:fixed;top:0;left:0;right:0;z-index:1030;
  background:transparent;border-bottom:1px solid transparent;
  transition:background .22s ease,border-color .22s ease,box-shadow .22s ease;
}
.site-header.scrolled{
  background:var(--bg);border-bottom:1px solid var(--line);box-shadow:var(--sh-1);
}
.nav-inner{
  display:grid;grid-template-columns:minmax(0,1.4fr) minmax(0,1fr);
  align-items:center;height:var(--nav-h);
  transition:height .22s ease;
}
.site-header.scrolled .nav-inner{height:56px}
.nav-left{display:flex;align-items:center;gap:34px;min-width:0}
.nav-right{display:flex;align-items:center;justify-content:flex-end;gap:14px}

.brand{display:inline-flex;align-items:baseline;gap:0;font-size:20px;letter-spacing:-.01em;white-space:nowrap;color:var(--ink)}
.brand:hover{color:var(--ink)}
.brand .b1{font-weight:700;color:var(--brand)}
.brand .b2{font-weight:500;color:var(--ink-2);margin-left:2px}
.brand .dot{width:6px;height:6px;border-radius:50%;background:var(--accent);display:inline-block;margin-left:8px;transform:translateY(-3px)}

.nav-menu{display:flex;align-items:center;gap:28px}
.nav-menu a{
  position:relative;font-size:15px;font-weight:500;color:var(--ink-2);padding:6px 0;
}
.nav-menu a::after{
  content:"";position:absolute;left:0;right:0;bottom:-2px;height:2px;border-radius:2px;
  background:var(--brand);transform:scaleX(0);transform-origin:left;transition:transform .18s ease;
}
.nav-menu a:hover{color:var(--brand)}
.nav-menu a:hover::after{transform:scaleX(1)}
.nav-menu a.active{color:var(--brand);font-weight:600}
.nav-menu a.active::after{transform:scaleX(1)}

.icon-btn{
  width:40px;height:40px;border-radius:var(--r-pill);
  display:inline-flex;align-items:center;justify-content:center;
  border:1px solid var(--line);background:#fff;color:var(--ink-2);
  transition:all .18s ease;cursor:pointer;
}
.icon-btn:hover{border-color:var(--brand);color:var(--brand);transform:translateY(-1px);box-shadow:var(--sh-1)}

.nav-toggle{
  width:42px;height:42px;border-radius:var(--r-sm);
  border:1px solid var(--line);background:#fff;
  display:none;align-items:center;justify-content:center;flex-direction:column;gap:5px;cursor:pointer;
}
.nav-toggle span{display:block;width:18px;height:2px;background:var(--brand);border-radius:2px;transition:transform .2s ease}

@media (max-width:991.98px){
  .nav-inner{grid-template-columns:1fr auto}
  .nav-menu{display:none}
  .nav-toggle{display:flex}
  .nav-scroll-hide{display:none}
}

/* 移动抽屉 */
.drawer-mask{
  position:fixed;inset:0;background:rgba(8,41,37,.4);opacity:0;visibility:hidden;
  transition:opacity .22s ease,visibility .22s ease;z-index:1040;
}
.mobile-drawer{
  position:fixed;top:0;right:0;bottom:0;width:min(86vw,360px);
  background:var(--bg);z-index:1050;transform:translateX(102%);
  transition:transform .26s ease;display:flex;flex-direction:column;
  box-shadow:-18px 0 40px -22px rgba(11,43,39,.4);
}
body.drawer-open .mobile-drawer{transform:translateX(0)}
body.drawer-open .drawer-mask{opacity:1;visibility:visible}
body.drawer-open{overflow:hidden}
.drawer-head{display:flex;align-items:center;justify-content:space-between;padding:18px 22px;border-bottom:1px solid var(--line)}
.drawer-body{padding:22px;flex:1;overflow-y:auto}
.drawer-nav{display:flex;flex-direction:column;gap:4px;margin-bottom:28px}
.drawer-nav a{
  font-size:19px;font-weight:600;color:var(--ink);padding:14px 12px;border-radius:var(--r-md);
  border-left:3px solid transparent;transition:all .18s ease;
}
.drawer-nav a:hover,.drawer-nav a.active{background:var(--brand-soft);border-left-color:var(--brand);color:var(--brand)}
.drawer-close{width:38px;height:38px;border-radius:var(--r-pill);border:1px solid var(--line);background:#fff;color:var(--ink);cursor:pointer}
.drawer-foot{border-top:1px solid var(--line);padding:22px}
.drawer-foot p{font-size:14px;color:var(--ink-2);margin:14px 0 0}

/* ============ Hero ============ */
.hero{padding-top:calc(var(--nav-h) + 56px);padding-bottom:72px;position:relative;overflow:hidden}
.hero::before{
  content:"";position:absolute;top:-120px;right:-160px;width:520px;height:520px;border-radius:50%;
  background:radial-gradient(circle,rgba(234,242,240,.9),rgba(234,242,240,0) 68%);z-index:0;
}
.hero-split{
  position:relative;z-index:1;
  display:grid;grid-template-columns:minmax(0,1.4fr) minmax(0,1fr);gap:56px;align-items:center;
}
.hero-copy{max-width:640px}
.hero h1{
  font-size:clamp(28px,4.4vw,44px);line-height:1.25;margin:18px 0 0;letter-spacing:-.015em;
}
.hero h1 em{font-style:normal;color:var(--brand);position:relative}
.hero-sub{font-size:17px;color:var(--ink-2);margin:20px 0 0;max-width:540px}
.hero-cta{display:flex;flex-wrap:wrap;gap:14px;margin-top:32px}
.hero-metrics{display:flex;flex-wrap:wrap;gap:40px;margin-top:44px;padding-top:26px;border-top:1px solid var(--line)}
.hero-metrics .m{min-width:96px}
.hero-metrics .m b{display:block;font-size:30px;font-weight:700;color:var(--brand);line-height:1.2;letter-spacing:-.02em}
.hero-metrics .m span{font-size:13.5px;color:var(--ink-2)}
.hero-visual{position:relative;border-radius:var(--r-lg);overflow:hidden;border:1px solid var(--line);box-shadow:var(--sh-2);aspect-ratio:4/3;background:var(--brand-soft)}
.hero-visual img{width:100%;height:100%;object-fit:cover}
.hero-tag{
  position:absolute;left:18px;bottom:18px;background:rgba(255,255,255,.94);
  border-radius:var(--r-pill);padding:8px 16px;font-size:13px;font-weight:600;color:var(--brand);
  border:1px solid var(--line);
}
@media (max-width:991.98px){
  .hero-split{grid-template-columns:1fr;gap:40px}
  .hero-visual{order:-1;aspect-ratio:16/9}
  .hero{padding-top:calc(var(--nav-h) + 32px);padding-bottom:48px}
  .hero-metrics{gap:28px;margin-top:32px}
}

/* ============ 信任条 ============ */
.trust{background:#fff;border-top:1px solid var(--line);border-bottom:1px solid var(--line);padding:18px 0}
.trust-row{display:flex;align-items:center;gap:14px;height:56px;overflow-x:auto;scrollbar-width:none}
.trust-row::-webkit-scrollbar{display:none}
.trust-label{font-size:13px;color:var(--ink-2);white-space:nowrap;padding-right:12px;border-right:1px solid var(--line);line-height:1.4}
.trust-item{
  white-space:nowrap;font-size:14px;font-weight:600;color:#8E9A96;
  padding:8px 18px;border:1px dashed #D5D1C7;border-radius:var(--r-pill);
}
@media (max-width:575.98px){
  .trust-row{height:auto;flex-wrap:wrap;gap:10px;padding:6px 0}
  .trust-label{border-right:none;width:100%}
}

/* ============ 卖点区 ============ */
.value-grid{display:grid;grid-template-columns:minmax(0,7fr) minmax(0,5fr);gap:64px;align-items:start}
.value-sticky{position:sticky;top:104px}
.value-list{display:flex;flex-direction:column}
.value-item{
  display:grid;grid-template-columns:56px 1fr 40px;gap:20px;align-items:start;
  padding:26px 0;border-bottom:1px solid var(--line);
}
.value-item:first-child{border-top:1px solid var(--line)}
.value-num{font-size:15px;font-weight:700;color:var(--accent);letter-spacing:.06em;padding-top:4px}
.value-item h3{font-size:19px;margin:0 0 8px}
.value-item p{margin:0;color:var(--ink-2);font-size:15.5px;line-height:1.8}
.value-icon{
  width:40px;height:40px;border-radius:var(--r-pill);background:var(--brand-soft);color:var(--brand);
  display:flex;align-items:center;justify-content:center;font-size:15px;
}
@media (max-width:991.98px){
  .value-grid{grid-template-columns:1fr;gap:32px}
  .value-sticky{position:static}
}

/* ============ 演示区 ============ */
.demo-wrap{background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);padding:32px;box-shadow:var(--sh-1)}
.demo-split{display:grid;grid-template-columns:250px minmax(0,1fr);gap:34px;align-items:start}
.demo-tabs{display:flex;flex-direction:column;gap:8px}
.demo-tab{
  text-align:left;background:transparent;border:1px solid transparent;border-left:3px solid transparent;
  border-radius:0 var(--r-md) var(--r-md) 0;padding:14px 16px;font-size:15px;font-weight:600;color:var(--ink-2);
  cursor:pointer;transition:all .18s ease;
}
.demo-tab:hover{background:var(--brand-soft);color:var(--brand)}
.demo-tab.active{background:var(--brand-soft);border-left-color:var(--brand);color:var(--brand)}
.demo-tab small{display:block;font-size:12.5px;font-weight:400;color:var(--ink-2);margin-top:2px}
.demo-panel img{width:100%;aspect-ratio:16/9;object-fit:cover;border-radius:var(--r-md);border:1px solid var(--line);background:var(--brand-soft)}
.step-list{margin-top:22px;display:flex;flex-direction:column;gap:12px}
.step-list li{display:flex;gap:12px;font-size:15.5px;color:var(--ink-2);align-items:flex-start}
.step-list li i{color:var(--brand);margin-top:6px;font-size:13px}
@media (max-width:991.98px){
  .demo-split{grid-template-columns:1fr;gap:24px}
  .demo-tabs{flex-direction:row;overflow-x:auto;gap:8px;padding-bottom:6px}
  .demo-tab{white-space:nowrap;border-radius:var(--r-pill);border-left:1px solid var(--line);border:1px solid var(--line)}
  .demo-tab.active{border-color:var(--brand)}
  .demo-wrap{padding:22px}
}

/* ============ 资讯卡片 ============ */
.sec-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;flex-wrap:wrap;margin-bottom:36px}
.news-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px}
.news-card{
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-md);
  overflow:hidden;display:flex;flex-direction:column;
  transition:transform .18s ease,box-shadow .18s ease,border-color .18s ease;
}
.news-card:hover{transform:translateY(-2px);box-shadow:var(--sh-2);border-color:rgba(15,61,58,.32)}
.news-thumb{aspect-ratio:4/3;overflow:hidden;background:var(--brand-soft);position:relative}
.news-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .3s ease}
.news-card:hover .news-thumb img{transform:translateY(-2px)}
.news-body{padding:22px;display:flex;flex-direction:column;gap:10px;flex:1}
.news-title{font-size:17px;font-weight:700;line-height:1.5;color:var(--ink);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.news-card:hover .news-title{color:var(--brand)}
.news-excerpt{
  font-size:14.5px;color:var(--ink-2);line-height:1.75;margin:0;
  display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden;
}
.news-meta{display:flex;align-items:center;justify-content:space-between;gap:12px;font-size:13px;color:#8D9995;margin-top:auto;padding-top:12px;border-top:1px solid var(--line)}
.news-more{font-size:14px;font-weight:600;color:var(--brand);display:inline-flex;align-items:center;gap:6px}
.news-more:hover{color:var(--accent);gap:9px}
@media (max-width:991.98px){.news-grid{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media (max-width:575.98px){.news-grid{grid-template-columns:1fr}}

.empty-state{
  background:#fff;border:1px dashed var(--line);border-radius:var(--r-lg);
  min-height:200px;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:14px;
  color:var(--ink-2);text-align:center;padding:32px;
}
.empty-state i{font-size:26px;color:var(--brand)}
.empty-state p{margin:0;font-size:15.5px}

/* ============ 证据区 ============ */
.proof-grid{display:grid;grid-template-columns:minmax(0,5fr) minmax(0,7fr);gap:30px;align-items:stretch}
.stats-band{
  background:var(--brand-deep);border-radius:var(--r-lg);padding:38px 32px;color:#fff;
  display:flex;flex-direction:column;justify-content:center;gap:26px;
}
.stats-band .stat b{display:block;font-size:40px;font-weight:700;line-height:1.1;letter-spacing:-.02em}
.stats-band .stat span{font-size:14px;color:#A9C0BB;display:block;margin-top:4px}
.stats-band .stat + .stat{padding-top:26px;border-top:1px solid rgba(255,255,255,.14)}
.quote-stack{display:flex;flex-direction:column;gap:18px}
.quote{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-md);padding:24px 26px;
  transition:transform .18s ease,box-shadow .18s ease,border-color .18s ease;
}
.quote:hover{transform:translateY(-2px);box-shadow:var(--sh-2);border-color:rgba(15,61,58,.3)}
.quote.w2{width:calc(100% - 46px)}
.quote p{margin:0 0 14px;font-size:15.5px;color:var(--ink);line-height:1.8}
.quote span{font-size:13px;color:var(--ink-2)}
.quote i{color:var(--accent-soft);font-size:14px;margin-right:8px}
.cert-row{display:flex;flex-wrap:wrap;gap:12px;margin-top:30px;padding-top:24px;border-top:1px solid var(--line)}
.cert-row span{
  font-size:13px;color:var(--ink-2);border:1px solid var(--line);border-radius:var(--r-pill);
  padding:6px 16px;background:#fff;
}
@media (max-width:991.98px){
  .proof-grid{grid-template-columns:1fr}
  .quote.w2{width:100%}
}

/* ============ 方案档位 ============ */
.plan-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px;align-items:start}
.plan{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);padding:30px 26px;
  display:flex;flex-direction:column;gap:18px;position:relative;
  transition:transform .18s ease,box-shadow .18s ease,border-color .18s ease;
}
.plan:hover{transform:translateY(-2px);box-shadow:var(--sh-2)}
.plan h3{font-size:20px;margin:0}
.plan .plan-for{font-size:14.5px;color:var(--ink-2);margin:0;min-height:46px}
.plan ul{display:flex;flex-direction:column;gap:11px;margin:4px 0 6px}
.plan ul li{display:flex;gap:10px;font-size:15px;color:var(--ink-2);align-items:flex-start;line-height:1.7}
.plan ul li i{color:var(--ok);margin-top:6px;font-size:12px}
.plan .btn-brand,.plan .btn-ghost{width:100%;margin-top:auto}
.plan.featured{
  border:2px solid var(--brand);transform:translateY(-6px);box-shadow:var(--sh-2);
}
.plan.featured:hover{transform:translateY(-8px)}
.plan-flag{
  position:absolute;top:-13px;right:24px;background:var(--accent);color:#fff;
  font-size:12.5px;font-weight:700;padding:4px 14px;border-radius:var(--r-pill);letter-spacing:.04em;
}
.plan-note{font-size:13.5px;color:var(--ink-2);margin-top:22px;text-align:center}
@media (max-width:991.98px){
  .plan-grid{grid-template-columns:1fr;gap:18px}
  .plan.featured{transform:none}
  .plan.featured:hover{transform:translateY(-2px)}
}

/* ============ FAQ ============ */
.faq-grid{display:grid;grid-template-columns:minmax(0,4fr) minmax(0,8fr);gap:56px;align-items:start}
.faq-aside{position:sticky;top:104px}
.faq-contact{background:#fff;border:1px solid var(--line);border-radius:var(--r-md);padding:22px;margin-top:26px}
.faq-contact p{margin:0 0 10px;font-size:14.5px;color:var(--ink-2)}
.faq-contact a{display:block;font-size:15px;font-weight:600;margin-bottom:6px}
.accordion-item{background:#fff;border:1px solid var(--line) !important;border-radius:var(--r-md) !important;margin-bottom:12px;overflow:hidden}
.accordion-button{
  background:#fff;color:var(--ink);font-size:16px;font-weight:600;padding:19px 22px;
  box-shadow:none !important;border-radius:var(--r-md) !important;line-height:1.6;
}
.accordion-button:not(.collapsed){background:var(--brand-soft);color:var(--brand)}
.accordion-button::after{
  flex:0 0 auto;width:9px;height:9px;margin-left:auto;
  content:"";background-image:none !important;
  border-right:2px solid var(--brand);border-bottom:2px solid var(--brand);
  transform:rotate(45deg) translate(-2px,-2px);transition:transform .22s ease;
}
.accordion-button:not(.collapsed)::after{transform:rotate(225deg) translate(-2px,-2px)}
.accordion-body{background:#FBFAF6;font-size:15.5px;color:var(--ink-2);line-height:1.85;padding:20px 22px}
@media (max-width:991.98px){
  .faq-grid{grid-template-columns:1fr;gap:32px}
  .faq-aside{position:static}
}

/* ============ 底部 CTA ============ */
.cta-band{
  position:relative;background:var(--brand-deep);color:#fff;padding:72px 0;overflow:hidden;
}
.cta-band::before{
  content:"";position:absolute;inset:0;
  background-image:url('/assets/images/backpic/back-2.png');
  background-size:cover;background-position:center;opacity:.12;
}
.cta-band::after{content:"";position:absolute;inset:0;background:linear-gradient(100deg,rgba(8,41,37,.96),rgba(15,61,58,.86))}
.cta-inner{position:relative;z-index:2;display:grid;grid-template-columns:minmax(0,1.4fr) minmax(0,1fr);gap:48px;align-items:center}
.cta-inner h2{color:#fff;font-size:clamp(22px,3vw,32px);margin:0 0 12px}
.cta-inner p{color:#B9CFCA;margin:0;font-size:16px;max-width:520px}
.cta-form{display:flex;gap:12px}
.cta-form input{
  flex:1;height:48px;border-radius:var(--r-pill);border:1px solid rgba(255,255,255,.3);
  background:rgba(255,255,255,.1);color:#fff;padding:0 20px;font-size:15px;outline:none;
  transition:border-color .18s ease,box-shadow .18s ease;
}
.cta-form input::placeholder{color:#9FB6B1}
.cta-form input:focus{border-color:var(--accent-soft);box-shadow:0 0 0 3px rgba(246,199,122,.2)}
.cta-form .btn-light-brand{height:48px;white-space:nowrap}
@media (max-width:767.98px){
  .cta-inner{grid-template-columns:1fr;gap:28px}
  .cta-form{flex-direction:column}
  .cta-form .btn-light-brand{width:100%}
}

/* ============ 页脚 ============ */
.site-footer{background:var(--brand-deep);color:#AFC4BF;padding:64px 0 0}
.footer-grid{display:grid;grid-template-columns:minmax(0,1.5fr) minmax(0,1fr) minmax(0,1fr) minmax(0,1.2fr);gap:40px}
.site-footer .brand .b1{color:#fff}
.site-footer .brand .b2{color:#9FB6B1}
.footer-desc{font-size:14.5px;line-height:1.85;margin-top:18px;color:#93AAA5;max-width:300px}
.footer-col h4{color:#fff;font-size:15px;font-weight:600;margin:0 0 18px;letter-spacing:.02em}
.footer-col a{display:block;color:#AFC4BF;font-size:14.5px;padding:5px 0;transition:color .18s ease,padding-left .18s ease}
.footer-col a:hover{color:var(--accent-soft);padding-left:4px}
.footer-col p{font-size:14.5px;margin:0 0 10px;color:#93AAA5}
.footer-bottom{
  margin-top:52px;border-top:1px solid rgba(255,255,255,.12);
  padding:22px 0 26px;display:flex;flex-wrap:wrap;gap:14px;justify-content:space-between;align-items:center;
  font-size:13.5px;color:#7E948F;
}
.footer-bottom a{color:#AFC4BF}
.footer-bottom a:hover{color:var(--accent-soft)}
@media (max-width:991.98px){
  .footer-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:32px}
}
@media (max-width:575.98px){
  .footer-grid{grid-template-columns:1fr}
}

/* ============ 浮动按钮 ============ */
.float-cta,.to-top{
  position:fixed;right:24px;z-index:1029;
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  border-radius:var(--r-pill);border:none;cursor:pointer;
  opacity:0;visibility:hidden;transform:translateY(12px);
  transition:opacity .22s ease,transform .22s ease,visibility .22s ease,background .18s ease;
  box-shadow:var(--sh-2);
}
.float-cta{
  bottom:24px;background:var(--accent);color:#fff;font-size:14.5px;font-weight:600;
  padding:13px 22px;max-width:40vw;
}
.float-cta:hover{background:#C56A22;color:#fff;transform:translateY(-2px)}
.to-top{
  bottom:82px;width:44px;height:44px;background:#fff;color:var(--brand);border:1px solid var(--line);
}
.to-top:hover{background:var(--brand-soft);transform:translateY(-2px)}
.float-cta.show,.to-top.show{opacity:1;visibility:visible;transform:translateY(0)}
@media (max-width:575.98px){
  .float-cta{right:16px;bottom:16px;padding:12px 18px;font-size:14px}
  .to-top{right:16px;bottom:72px}
}

/* roulang page: article */
:root{
  --brand:#0F3D3A;
  --brand-dark:#082925;
  --brand-soft:#EAF2F0;
  --accent:#E07B2C;
  --accent-soft:#F6C77A;
  --bg:#F7F5F0;
  --card:#FFFFFF;
  --ink:#14201D;
  --muted:#4A5754;
  --line:#E2DED5;
  --ok:#2F7A5A;
  --warn:#B4552D;
  --info:#2E6E8E;
  --r-sm:8px;
  --r:14px;
  --r-lg:22px;
  --sh-1:0 1px 2px rgba(20,32,29,.05);
  --sh-2:0 12px 28px -14px rgba(11,43,39,.22);
  --nav-h:76px;
  --bs-primary:#0F3D3A;
  --bs-primary-rgb:15,61,58;
  --bs-body-bg:#F7F5F0;
  --bs-body-color:#14201D;
  --bs-border-radius:14px;
  --bs-link-color:#0F3D3A;
  --bs-link-hover-color:#082925;
  --bs-font-sans-serif:"PingFang SC","Microsoft YaHei","Noto Sans SC",system-ui,sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC",system-ui,sans-serif;
  background:var(--bg);
  color:var(--ink);
  font-size:16px;
  line-height:1.85;
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}
a{color:inherit;text-decoration:none}
a:hover{color:var(--brand)}
img{max-width:100%;display:block}
button,input{font:inherit}
h1,h2,h3,h4{margin:0;font-weight:700;line-height:1.3;color:var(--brand-dark)}
p{margin:0}
ul,ol{margin:0}
:focus-visible{outline:2px solid var(--accent);outline-offset:2px;border-radius:4px}
.num{font-variant-numeric:tabular-nums}
.container{width:100%;max-width:1180px;margin:0 auto;padding:0 20px}

/* ---------- 顶部导航 ---------- */
.site-header{
  position:fixed;top:0;left:0;right:0;z-index:1040;
  background:rgba(247,245,240,.94);
  backdrop-filter:blur(10px);
  border-bottom:1px solid transparent;
  transition:background .18s ease,border-color .18s ease,box-shadow .18s ease;
}
.site-header.scrolled{
  background:#F7F5F0;
  border-bottom-color:var(--line);
  box-shadow:0 8px 22px -18px rgba(11,43,39,.45);
}
.nav-wrap{
  display:grid;
  grid-template-columns:minmax(0,1.4fr) minmax(0,1fr);
  align-items:center;
  gap:16px;
  height:var(--nav-h);
  transition:height .18s ease;
}
.site-header.scrolled .nav-wrap{height:62px}
.nav-left{display:flex;align-items:center;gap:30px;min-width:0}
.nav-right{display:flex;align-items:center;justify-content:flex-end;gap:12px;min-width:0}
.brand{
  display:inline-flex;align-items:baseline;white-space:nowrap;
  font-size:19px;letter-spacing:.2px;color:var(--brand);
}
.brand .b1{font-weight:700}
.brand .b2{font-weight:500}
.nav-menu{display:flex;align-items:center;gap:4px}
.nav-menu a{
  padding:8px 14px;font-size:15px;color:var(--muted);
  border-radius:999px;transition:color .18s ease,background .18s ease;
}
.nav-menu a:hover{color:var(--brand);background:var(--brand-soft)}
.nav-menu a.active{color:var(--brand);font-weight:600;background:var(--brand-soft)}
.icon-btn{
  width:42px;height:42px;display:inline-flex;align-items:center;justify-content:center;
  border:1px solid var(--line);background:#fff;border-radius:999px;color:var(--brand);
  transition:border-color .18s ease,background .18s ease;
}
.icon-btn:hover{border-color:rgba(15,61,58,.35);background:var(--brand-soft)}
.burger{
  display:none;width:44px;height:44px;position:relative;
  border:1px solid var(--line);background:#fff;border-radius:12px;
}
.burger i{position:absolute;left:12px;right:12px;height:2px;background:var(--brand);border-radius:2px}
.burger i:nth-child(1){top:16px}
.burger i:nth-child(2){top:24px}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 26px;border-radius:999px;font-size:15px;font-weight:600;
  border:1px solid transparent;cursor:pointer;white-space:nowrap;
  transition:transform .18s ease,box-shadow .18s ease,background .18s ease,color .18s ease,border-color .18s ease;
}
.btn-sm{height:40px;padding:0 20px;font-size:14px}
.btn-primary{background:var(--brand);color:#fff;box-shadow:var(--sh-1)}
.btn-primary:hover{background:var(--brand-dark);color:#fff;transform:translateY(-1px);box-shadow:var(--sh-2)}
.btn-outline{background:transparent;color:var(--brand);border-color:rgba(15,61,58,.35)}
.btn-outline:hover{background:var(--brand-soft);color:var(--brand-dark);transform:translateY(-1px)}
.btn-light{background:#fff;color:var(--brand-dark);border-color:rgba(255,255,255,.6)}
.btn-light:hover{background:var(--brand-soft);color:var(--brand-dark);transform:translateY(-1px)}
.btn-outline-light{background:transparent;color:#fff;border-color:rgba(255,255,255,.55)}
.btn-outline-light:hover{background:rgba(255,255,255,.14);color:#fff;transform:translateY(-1px)}
.btn-block{width:100%}

/* ---------- 抽屉 ---------- */
.drawer{width:320px;max-width:88vw;background:var(--bg);border-left:1px solid var(--line)}
.drawer .offcanvas-header{padding:20px;border-bottom:1px solid var(--line)}
.drawer .offcanvas-body{padding:20px;display:flex;flex-direction:column;gap:24px}
.drawer-close{
  width:40px;height:40px;border-radius:999px;border:1px solid var(--line);background:#fff;
  font-size:20px;line-height:1;color:var(--brand);
}
.drawer-nav{display:flex;flex-direction:column}
.drawer-nav a{
  padding:16px 4px;font-size:18px;font-weight:600;color:var(--brand-dark);
  border-bottom:1px solid var(--line);
}
.drawer-nav a:hover{color:var(--accent)}
.drawer-foot{display:flex;flex-direction:column;gap:10px}
.drawer-note{font-size:13px;color:var(--muted)}

/* ---------- 主体 ---------- */
main{padding-top:var(--nav-h)}

/* 面包屑 */
.crumbs{padding:26px 0 0}
.crumb-line{display:flex;align-items:center;gap:8px;font-size:13px;color:var(--muted);flex-wrap:nowrap;overflow:hidden}
.crumb-line a{color:var(--muted)}
.crumb-line a:hover{color:var(--brand);text-decoration:underline;text-underline-offset:3px}
.crumb-line .sep{color:#B9B3A7}
.crumb-line .current{
  color:var(--ink);max-width:46ch;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;
}

/* 文章头 */
.article-head{padding:22px 0 0}
.badge-cat{
  display:inline-flex;align-items:center;height:28px;padding:0 14px;border-radius:999px;
  background:var(--brand-soft);color:var(--brand);font-size:13px;font-weight:600;
}
.article-head h1{
  margin-top:18px;
  font-size:clamp(26px,3.6vw,42px);
  line-height:1.28;
  letter-spacing:.2px;
}
.article-meta{
  display:flex;align-items:center;flex-wrap:wrap;gap:10px;
  margin-top:18px;font-size:13px;color:var(--muted);
}
.article-meta .bar{width:1px;height:12px;background:var(--line);display:inline-block}

/* 封面 */
.article-cover{margin:32px 0 0}
.article-cover img{
  width:100%;aspect-ratio:16/9;object-fit:cover;border-radius:var(--r);
  border:1px solid var(--line);background:var(--brand-soft);
}
.article-cover figcaption{margin-top:10px;text-align:center;font-size:13px;color:var(--muted)}

/* 两栏布局 */
.article-layout{
  display:grid;
  grid-template-columns:minmax(0,1fr);
  gap:48px;
  padding-bottom:72px;
}

/* 正文 */
.article-body{
  max-width:780px;
  margin-top:36px;
  font-size:17px;
  line-height:1.95;
  color:var(--ink);
}
.article-body > *:first-child{margin-top:0}
.article-body p{margin:0 0 1em}
.article-body strong{font-weight:600;color:var(--brand-dark)}
.article-body h2{
  position:relative;
  margin:40px 0 16px;
  padding-left:16px;
  font-size:clamp(20px,2.4vw,26px);
  line-height:1.42;
}
.article-body h2::before{
  content:"";position:absolute;left:0;top:.22em;bottom:.22em;width:3px;
  background:var(--brand);border-radius:2px;
}
.article-body h3{margin:28px 0 12px;font-size:19px}
.article-body ul{list-style:none;padding-left:0;margin:0 0 1em}
.article-body ul li{position:relative;padding-left:22px;margin:8px 0}
.article-body ul li::before{
  content:"";position:absolute;left:2px;top:.72em;width:7px;height:7px;
  background:var(--brand);border-radius:2px;
}
.article-body ol{padding-left:1.4em;margin:0 0 1em}
.article-body ol li{margin:8px 0}
.article-body blockquote{
  margin:24px 0;padding:20px 22px;background:var(--brand-soft);
  border-left:3px solid var(--brand);border-radius:0 var(--r) var(--r) 0;color:var(--muted);
}
.article-body blockquote p:last-child{margin-bottom:0}
.article-body img{border-radius:12px;margin:22px 0;border:1px solid var(--line)}
.article-body figure{margin:22px 0}
.article-body a{color:var(--brand);text-decoration:underline;text-underline-offset:3px}
.article-body a:hover{color:var(--accent)}
.article-body table{
  display:block;width:100%;overflow-x:auto;border-collapse:collapse;
  margin:22px 0;font-size:15px;
}
.article-body table th{background:var(--brand-soft);color:var(--brand-dark);text-align:left}
.article-body table th,.article-body table td{
  padding:10px 14px;border:1px solid var(--line);white-space:nowrap;
}
.article-body hr{border:none;border-top:1px solid var(--line);margin:32px 0}

/* 空态 */
.empty-state{
  margin-top:36px;min-height:220px;display:flex;flex-direction:column;
  align-items:center;justify-content:center;gap:14px;text-align:center;
  background:#fff;border:1px solid var(--line);border-radius:var(--r);padding:40px 24px;
}
.empty-state svg{color:var(--brand);opacity:.7}
.empty-state p{color:var(--muted)}

/* 标签 */
.tag-row{display:flex;flex-wrap:wrap;gap:10px;margin-top:40px}
.tag{
  display:inline-flex;align-items:center;height:30px;padding:0 14px;border-radius:999px;
  background:#fff;border:1px solid var(--line);font-size:13px;color:var(--muted);
  transition:border-color .18s ease,color .18s ease,background .18s ease;
}
.tag:hover{border-color:rgba(15,61,58,.35);color:var(--brand);background:var(--brand-soft)}

/* 分页导航 */
.article-nav{
  display:grid;grid-template-columns:1fr 1fr;gap:16px;margin-top:36px;
}
.article-nav a{
  display:flex;flex-direction:column;gap:6px;padding:20px 22px;background:#fff;
  border:1px solid var(--line);border-radius:var(--r);
  transition:transform .18s ease,box-shadow .18s ease,border-color .18s ease;
}
.article-nav a:hover{transform:translateY(-2px);box-shadow:var(--sh-2);border-color:rgba(15,61,58,.3)}
.article-nav span{font-size:13px;color:var(--muted)}
.article-nav strong{font-size:16px;font-weight:600;color:var(--brand-dark)}

/* 相关推荐卡片 */
.related{margin-top:64px}
.related h2{font-size:clamp(20px,2.4vw,26px)}
.related .sub{margin-top:8px;font-size:14px;color:var(--muted)}
.news-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px;margin-top:26px}
.news-card{
  display:flex;flex-direction:column;overflow:hidden;background:var(--card);
  border:1px solid var(--line);border-radius:var(--r);
  transition:transform .18s ease,box-shadow .18s ease,border-color .18s ease;
}
.news-card:hover{transform:translateY(-2px);box-shadow:var(--sh-2);border-color:rgba(15,61,58,.3)}
.news-thumb{position:relative;aspect-ratio:4/3;background:var(--brand-soft);overflow:hidden}
.news-thumb img{width:100%;height:100%;object-fit:cover}
.news-body{padding:22px;display:flex;flex-direction:column;gap:10px;flex:1}
.news-body h3{
  font-size:17px;line-height:1.5;display:-webkit-box;-webkit-line-clamp:2;
  -webkit-box-orient:vertical;overflow:hidden;
}
.news-body .excerpt{
  font-size:14px;color:var(--muted);line-height:1.75;
  display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden;
}
.news-meta{display:flex;align-items:center;gap:10px;font-size:13px;color:var(--muted);margin-top:auto}
.news-meta .bar{width:1px;height:12px;background:var(--line)}
.news-more{font-size:14px;font-weight:600;color:var(--brand)}

/* 侧栏 */
.article-side{display:none}
.side-sticky{position:sticky;top:calc(var(--nav-h) + 24px);display:flex;flex-direction:column;gap:20px}
.side-card{background:#fff;border:1px solid var(--line);border-radius:var(--r);padding:22px}
.side-card h3{font-size:15px;margin-bottom:14px;display:flex;align-items:center;gap:8px}
.side-card h3::before{content:"";width:8px;height:8px;border-radius:999px;background:var(--accent)}
.side-list{list-style:none;padding:0;display:flex;flex-direction:column;gap:10px}
.side-list li a{
  display:block;font-size:14px;color:var(--muted);line-height:1.7;
  padding-left:12px;border-left:2px solid transparent;
  transition:border-color .18s ease,color .18s ease;
}
.side-list li a:hover{color:var(--brand);border-left-color:var(--brand)}
.side-links{display:flex;flex-direction:column;gap:12px}
.side-links a{
  display:flex;align-items:center;justify-content:space-between;gap:10px;
  font-size:14px;color:var(--muted);padding-bottom:10px;border-bottom:1px dashed var(--line);
}
.side-links a:last-child{border-bottom:none;padding-bottom:0}
.side-links a:hover{color:var(--brand)}

/* CTA 带 */
.cta-band{
  position:relative;overflow:hidden;background:var(--brand-dark);
  color:#fff;padding:64px 0;margin-top:16px;
}
.cta-band::before{
  content:"";position:absolute;inset:0;
  background-image:url("/assets/images/backpic/back-2.png");
  background-size:cover;background-position:center;opacity:.12;
}
.cta-band::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(90deg,rgba(8,41,37,.94),rgba(15,61,58,.78));
}
.cta-inner{position:relative;z-index:2;display:flex;align-items:center;justify-content:space-between;gap:32px;flex-wrap:wrap}
.cta-inner h2{color:#fff;font-size:clamp(22px,2.6vw,30px)}
.cta-inner p{margin-top:10px;color:rgba(255,255,255,.78);font-size:15px;max-width:52ch}
.cta-actions{display:flex;gap:14px;flex-wrap:wrap}

/* 页脚 */
.site-footer{background:#082925;color:rgba(255,255,255,.72);padding:56px 0 24px;margin-top:0}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.1fr;gap:36px}
.site-footer .brand{color:#fff;font-size:18px}
.footer-desc{margin-top:16px;font-size:14px;line-height:1.8;color:rgba(255,255,255,.6);max-width:34ch}
.footer-col h4{font-size:14px;color:#fff;margin-bottom:16px;letter-spacing:.4px}
.footer-col a,.footer-col p{display:block;font-size:14px;color:rgba(255,255,255,.62);margin-bottom:10px}
.footer-col a:hover{color:var(--accent-soft)}
.footer-bottom{
  margin-top:40px;padding-top:20px;border-top:1px solid rgba(255,255,255,.12);
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:13px;color:rgba(255,255,255,.5);
}
.footer-bottom a{color:var(--accent-soft)}

/* 回到顶部 */
.to-top{
  position:fixed;right:24px;bottom:24px;z-index:1030;
  width:46px;height:46px;border-radius:999px;background:#fff;color:var(--brand);
  border:1px solid var(--line);display:flex;align-items:center;justify-content:center;
  box-shadow:var(--sh-1);opacity:0;visibility:hidden;transform:translateY(8px);
  transition:opacity .18s ease,transform .18s ease,visibility .18s ease;
}
.to-top.show{opacity:1;visibility:visible;transform:translateY(0)}
.to-top:hover{background:var(--brand);color:#fff;border-color:var(--brand)}

/* 响应式 */
@media (min-width:1200px){
  .article-layout{grid-template-columns:minmax(0,1fr) 300px;gap:56px}
  .article-side{display:block}
}
@media (max-width:1199px){
  .article-body{margin-left:auto;margin-right:auto}
}
@media (max-width:991px){
  :root{--nav-h:68px}
  .nav-menu{display:none}
  .burger{display:block}
  .nav-right .icon-btn{display:none}
  .nav-left{gap:0}
  .nav-wrap{grid-template-columns:minmax(0,1fr) auto}
  .crumbs{padding-top:20px}
  .cta-inner{flex-direction:column;align-items:flex-start}
}
@media (max-width:767px){
  .news-grid{grid-template-columns:1fr}
  .article-nav{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px}
  .cta-band{padding:48px 0}
}
@media (max-width:575px){
  .brand{font-size:17px}
  .burger{width:40px;height:40px}
  .burger i{left:11px;right:11px}
  .footer-grid{grid-template-columns:1fr}
  .article-head h1{font-size:26px}
  .footer-bottom{flex-direction:column;align-items:flex-start}
  .to-top{right:16px;bottom:16px}
}

/* roulang page: category1 */
:root{
  --brand:#0F3D3A;
  --brand-deep:#082925;
  --brand-soft:#EAF2F0;
  --accent:#E07B2C;
  --accent-soft:#F6C77A;
  --bg:#F7F5F0;
  --card:#FFFFFF;
  --text:#14201D;
  --muted:#4A5754;
  --line:#E2DED5;
  --ok:#2F7A5A;
  --warn:#B4552D;
  --info:#2E6E8E;
  --r-sm:8px;
  --r:14px;
  --r-lg:22px;
  --sh1:0 1px 2px rgba(20,32,29,.05);
  --sh2:0 12px 28px -14px rgba(11,43,39,.22);

  --bs-primary:#0F3D3A;
  --bs-primary-rgb:15,61,58;
  --bs-body-bg:#F7F5F0;
  --bs-body-color:#14201D;
  --bs-border-color:#E2DED5;
  --bs-border-radius:14px;
  --bs-link-color:#0F3D3A;
  --bs-link-hover-color:#082925;
  --bs-font-sans-serif:"PingFang SC","Microsoft YaHei","Noto Sans SC",system-ui,sans-serif;
}

*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC",system-ui,sans-serif;
  font-size:16.5px;
  line-height:1.85;
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}
img{max-width:100%;display:block}
a{color:var(--brand);text-decoration:none;transition:color 180ms ease,border-color 180ms ease,background-color 180ms ease}
a:hover{color:var(--brand-deep)}
button,input{font-family:inherit}
h1,h2,h3,h4{color:var(--text);font-weight:700;margin:0 0 12px}
h1{font-size:clamp(28px,4.4vw,44px);line-height:1.25;letter-spacing:.2px}
h2{font-size:clamp(22px,3vw,34px);line-height:1.3}
h3{font-size:19px;line-height:1.45}
p{margin:0 0 16px;color:var(--muted)}
.num{font-variant-numeric:tabular-nums;letter-spacing:.5px}
:focus-visible{outline:2px solid var(--accent);outline-offset:2px;border-radius:4px}

.container{
  max-width:1180px;
  padding-left:20px;
  padding-right:20px;
  margin-left:auto;
  margin-right:auto;
}

/* ---------- 顶部导航 ---------- */
.site-header{
  position:sticky;
  top:0;
  z-index:1030;
  background:transparent;
  transition:background-color 200ms ease,box-shadow 200ms ease,height 200ms ease,border-color 200ms ease;
  border-bottom:1px solid transparent;
}
.site-header.scrolled{
  background:var(--bg);
  border-bottom:1px solid var(--line);
  box-shadow:var(--sh1);
}
.nav-inner{
  display:grid;
  grid-template-columns:minmax(0,1.4fr) minmax(0,1fr);
  align-items:center;
  height:64px;
  transition:height 200ms ease;
}
.site-header.scrolled .nav-inner{height:56px}
.nav-left{display:flex;align-items:center;gap:30px;min-width:0}
.nav-right{display:flex;align-items:center;gap:12px;justify-self:end}
.brand{display:inline-flex;align-items:baseline;font-size:19px;letter-spacing:.2px;white-space:nowrap;color:#fff}
.site-header.scrolled .brand{color:var(--brand)}
.brand .b1{font-weight:700}
.brand .b2{font-weight:500;opacity:.92}
.nav-menu{display:flex;align-items:center;gap:4px}
.nav-menu a{
  position:relative;
  padding:8px 14px;
  font-size:15px;
  color:rgba(255,255,255,.86);
  border-radius:999px;
  white-space:nowrap;
}
.nav-menu a:hover{color:#fff;background:rgba(255,255,255,.12)}
.nav-menu a.active{color:#fff;background:rgba(255,255,255,.16)}
.site-header.scrolled .nav-menu a{color:var(--muted)}
.site-header.scrolled .nav-menu a:hover{color:var(--brand);background:var(--brand-soft)}
.site-header.scrolled .nav-menu a.active{color:var(--brand);background:var(--brand-soft);font-weight:600}
.icon-btn{
  width:40px;height:40px;border-radius:999px;
  display:grid;place-items:center;
  background:rgba(255,255,255,.14);
  border:1px solid rgba(255,255,255,.22);
  color:#fff;cursor:pointer;
  transition:background-color 180ms ease,transform 180ms ease,border-color 180ms ease;
}
.icon-btn:hover{background:rgba(255,255,255,.24);transform:translateY(-1px)}
.site-header.scrolled .icon-btn{background:#fff;border-color:var(--line);color:var(--brand)}
.site-header.scrolled .icon-btn:hover{background:var(--brand-soft);border-color:rgba(15,61,58,.3)}

.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:44px;padding:0 22px;border-radius:999px;
  font-size:15px;font-weight:600;border:1px solid transparent;
  cursor:pointer;transition:transform 180ms ease,box-shadow 180ms ease,background-color 180ms ease,color 180ms ease,border-color 180ms ease;
  text-decoration:none;line-height:1;
}
.btn-sm{height:40px;padding:0 18px;font-size:14.5px}
.btn-brand{background:var(--brand);color:#fff;box-shadow:var(--sh1)}
.btn-brand:hover{background:var(--brand-deep);color:#fff;transform:translateY(-1px);box-shadow:var(--sh2)}
.btn-line{background:transparent;color:var(--brand);border-color:rgba(15,61,58,.35)}
.btn-line:hover{background:var(--brand-soft);color:var(--brand);transform:translateY(-1px)}
.btn-light{background:#fff;color:var(--brand)}
.btn-light:hover{background:var(--brand-soft);color:var(--brand-deep);transform:translateY(-1px)}
.btn-ghost-light{background:transparent;color:#fff;border-color:rgba(255,255,255,.5)}
.btn-ghost-light:hover{background:rgba(255,255,255,.14);color:#fff}
.nav-cta{background:var(--accent);color:#fff}
.nav-cta:hover{background:#c9691f;color:#fff;transform:translateY(-1px)}

.hamburger{
  display:none;width:44px;height:40px;border-radius:var(--r-sm);
  background:rgba(255,255,255,.14);border:1px solid rgba(255,255,255,.22);
  cursor:pointer;padding:0;place-items:center;
}
.hamburger span{display:block;width:18px;height:2px;background:#fff;border-radius:2px;margin:3px auto;transition:transform 200ms ease}
.site-header.scrolled .hamburger{background:#fff;border-color:var(--line)}
.site-header.scrolled .hamburger span{background:var(--brand)}

/* ---------- 抽屉 ---------- */
.drawer-mask{
  position:fixed;inset:0;background:rgba(8,41,37,.45);
  opacity:0;visibility:hidden;transition:opacity 220ms ease,visibility 220ms ease;z-index:1055;
}
.drawer-mask.show{opacity:1;visibility:visible}
.drawer{
  position:fixed;top:0;right:0;height:100%;width:min(360px,88vw);
  background:#fff;z-index:1060;transform:translateX(100%);
  transition:transform 260ms ease;display:flex;flex-direction:column;
  padding:22px;box-shadow:-18px 0 40px -24px rgba(11,43,39,.4);
}
.drawer.show{transform:translateX(0)}
.drawer-head{display:flex;align-items:center;justify-content:space-between;padding-bottom:18px;border-bottom:1px solid var(--line)}
.drawer-head .brand{color:var(--brand)}
.drawer-close{background:var(--brand-soft);border:0;width:38px;height:38px;border-radius:999px;color:var(--brand);cursor:pointer}
.drawer-nav{display:flex;flex-direction:column;padding:18px 0;gap:4px}
.drawer-nav a{
  font-size:19px;font-weight:600;color:var(--text);padding:14px 12px;border-radius:var(--r-sm);
}
.drawer-nav a:hover{background:var(--brand-soft);color:var(--brand)}
.drawer-nav a.active{background:var(--brand-soft);color:var(--brand)}
.drawer-foot{margin-top:auto;padding-top:18px;border-top:1px solid var(--line);font-size:14px;color:var(--muted)}
.drawer-foot p{margin:4px 0;font-size:14px}
.drawer-foot .btn{width:100%;margin-top:12px}

/* ---------- 内页横幅 ---------- */
.page-banner{
  position:relative;
  margin-top:-64px;
  padding:132px 0 64px;
  background:linear-gradient(120deg,#082925 0%,#0F3D3A 62%,#134e49 100%);
  color:#fff;overflow:hidden;
}
.page-banner::before{
  content:"";position:absolute;inset:0;
  background:url('/assets/images/backpic/back-1.webp') center/cover no-repeat;
  opacity:.18;
}
.page-banner::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(8,41,37,.55) 0%,rgba(8,41,37,.75) 100%);
}
.page-banner .container{position:relative;z-index:2}
.crumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13.5px;color:rgba(255,255,255,.72);margin-bottom:18px}
.crumb a{color:rgba(255,255,255,.86)}
.crumb a:hover{color:#fff}
.crumb .sep{opacity:.5}
.page-banner h1{color:#fff;max-width:820px;margin-bottom:14px}
.page-banner .lead{color:rgba(255,255,255,.82);font-size:17px;max-width:680px;margin-bottom:26px}
.banner-actions{display:flex;flex-wrap:wrap;gap:12px}
.banner-tags{display:flex;flex-wrap:wrap;gap:10px;margin-top:26px}
.banner-tags span{
  font-size:13px;padding:6px 14px;border-radius:999px;
  background:rgba(255,255,255,.12);border:1px solid rgba(255,255,255,.2);color:rgba(255,255,255,.9);
}

/* ---------- 通用板块 ---------- */
.section{padding:88px 0}
.section.tight{padding:64px 0}
.section-head{max-width:760px;margin-bottom:44px}
.section-head .kicker{
  display:inline-flex;align-items:center;gap:10px;
  font-size:13px;font-weight:600;letter-spacing:1.6px;color:var(--brand);
  text-transform:uppercase;margin-bottom:12px;
}
.section-head .kicker::before{content:"";width:28px;height:2px;background:var(--accent);display:block}
.section-head p{font-size:16.5px;margin-bottom:0}

.tag{
  display:inline-flex;align-items:center;gap:6px;
  font-size:13px;font-weight:600;padding:5px 12px;border-radius:999px;
  background:var(--brand-soft);color:var(--brand);
}
.tag-accent{background:rgba(224,123,44,.14);color:#B4552D}

/* ---------- 非对称图文卡（7/5 与 5/7 交错） ---------- */
.split-card{
  display:grid;
  gap:0;
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--r-lg);
  overflow:hidden;
  box-shadow:var(--sh1);
  transition:transform 180ms ease,box-shadow 180ms ease,border-color 180ms ease;
  margin-bottom:32px;
}
.split-card:hover{transform:translateY(-2px);box-shadow:var(--sh2);border-color:rgba(15,61,58,.3)}
.split-card.a{grid-template-columns:minmax(0,7fr) minmax(0,5fr)}
.split-card.b{grid-template-columns:minmax(0,5fr) minmax(0,7fr)}
.split-media{position:relative;min-height:280px;background:var(--brand-soft)}
.split-media img{width:100%;height:100%;object-fit:cover;position:absolute;inset:0}
.split-body{padding:38px 34px;display:flex;flex-direction:column;justify-content:center}
.split-body h3{font-size:23px;margin-bottom:14px}
.split-body p{font-size:16px;margin-bottom:18px}
.plain-list{list-style:none;padding:0;margin:0}
.plain-list li{
  position:relative;padding-left:22px;margin-bottom:10px;
  font-size:15.5px;color:var(--muted);
}
.plain-list li::before{
  content:"";position:absolute;left:0;top:11px;width:8px;height:8px;
  border-radius:2px;background:var(--brand);opacity:.85;
}
.split-index{
  font-size:13px;font-weight:700;letter-spacing:1.4px;color:var(--accent);
  margin-bottom:10px;font-variant-numeric:tabular-nums;
}

/* ---------- 时间线流程 ---------- */
.flow-wrap{display:grid;grid-template-columns:minmax(0,8fr) minmax(0,4fr);gap:48px;align-items:start}
.timeline{position:relative;margin:0;padding:0;list-style:none}
.timeline-item{display:grid;grid-template-columns:56px minmax(0,1fr);gap:22px;position:relative;padding-bottom:34px}
.timeline-item:last-child{padding-bottom:0}
.timeline-item::before{
  content:"";position:absolute;left:27px;top:60px;bottom:6px;width:2px;
  background:linear-gradient(180deg,rgba(15,61,58,.28),rgba(15,61,58,.04));
}
.timeline-item:last-child::before{display:none}
.tl-num{
  width:56px;height:56px;border-radius:999px;background:var(--brand-soft);
  color:var(--brand);display:grid;place-items:center;font-weight:700;font-size:17px;
  font-variant-numeric:tabular-nums;border:1px solid rgba(15,61,58,.14);
}
.tl-body{background:var(--card);border:1px solid var(--line);border-radius:var(--r);padding:24px 26px;box-shadow:var(--sh1);transition:transform 180ms ease,box-shadow 180ms ease,border-color 180ms ease}
.tl-body:hover{transform:translateY(-2px);box-shadow:var(--sh2);border-color:rgba(15,61,58,.3)}
.tl-body h3{font-size:19px;margin-bottom:8px}
.tl-body p{margin-bottom:0;font-size:15.5px}

.aside-card{
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-lg);
  padding:28px;box-shadow:var(--sh1);position:sticky;top:96px;
}
.aside-card h3{font-size:18px;margin-bottom:14px}
.aside-card .metric{
  display:flex;align-items:baseline;gap:8px;padding:14px 0;border-bottom:1px dashed var(--line);
}
.aside-card .metric:last-of-type{border-bottom:0}
.aside-card .metric b{font-size:30px;color:var(--brand);font-variant-numeric:tabular-nums;line-height:1}
.aside-card .metric span{font-size:14px;color:var(--muted)}
.aside-card .btn{width:100%;margin-top:16px}

/* ---------- 模块清单 8/4 ---------- */
.module-wrap{display:grid;grid-template-columns:minmax(0,8fr) minmax(0,4fr);gap:48px;align-items:start}
.module-list{list-style:none;margin:0;padding:0}
.module-item{
  display:grid;grid-template-columns:minmax(0,1fr) auto;gap:18px;align-items:center;
  background:var(--card);border:1px solid var(--line);border-left:3px solid var(--brand);
  border-radius:var(--r);padding:22px 24px;margin-bottom:14px;
  transition:transform 180ms ease,box-shadow 180ms ease,border-color 180ms ease;
}
.module-item:hover{transform:translateY(-2px);box-shadow:var(--sh2);border-left-color:var(--accent)}
.module-item h3{font-size:17.5px;margin-bottom:6px}
.module-item p{margin:0;font-size:15px}
.module-item .icon{
  width:46px;height:46px;border-radius:12px;background:var(--brand-soft);
  display:grid;place-items:center;color:var(--brand);font-size:18px;
}
.notice-box{
  background:var(--brand-soft);border:1px solid rgba(15,61,58,.14);
  border-radius:var(--r-lg);padding:30px;
}
.notice-box h3{margin-bottom:12px}
.notice-box p{font-size:15.5px;margin-bottom:14px}
.notice-box p:last-child{margin-bottom:0}

/* ---------- 错位卡 ---------- */
.stagger{display:grid;grid-template-columns:minmax(0,2fr) minmax(0,1fr);gap:24px}
.stagger-card{
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-lg);
  padding:30px;box-shadow:var(--sh1);transition:transform 180ms ease,box-shadow 180ms ease,border-color 180ms ease;
}
.stagger-card:hover{transform:translateY(-2px);box-shadow:var(--sh2);border-color:rgba(15,61,58,.3)}
.stagger-card h3{margin-bottom:12px}
.stagger-card.wide{display:flex;gap:28px;align-items:center}
.stagger-card.wide .thumb{
  width:220px;flex:0 0 220px;aspect-ratio:4/3;border-radius:var(--r);
  overflow:hidden;background:var(--brand-soft);border:1px solid var(--line);
}
.stagger-card.wide .thumb img{width:100%;height:100%;object-fit:cover}
.stagger-card.tall{background:linear-gradient(160deg,#0F3D3A 0%,#082925 100%);color:#fff;border-color:transparent}
.stagger-card.tall h3,.stagger-card.tall p{color:#fff}
.stagger-card.tall p{color:rgba(255,255,255,.8)}
.stagger-card.tall .tag{background:rgba(255,255,255,.14);color:#fff}
.mini-stats{display:flex;gap:22px;margin-top:18px;flex-wrap:wrap}
.mini-stats div b{display:block;font-size:26px;color:var(--accent-soft);font-variant-numeric:tabular-nums;line-height:1.2}
.mini-stats div span{font-size:13px;color:rgba(255,255,255,.75)}

/* ---------- FAQ ---------- */
.faq-wrap{display:grid;grid-template-columns:minmax(0,4fr) minmax(0,8fr);gap:48px;align-items:start}
.faq-aside p{font-size:15.5px}
.faq-contact{margin-top:20px;padding:20px;border-radius:var(--r);background:var(--brand-soft);border:1px solid rgba(15,61,58,.12)}
.faq-contact p{margin:0;font-size:14.5px;color:var(--brand)}
.faq-list{border-top:1px solid var(--line)}
.faq-item{border-bottom:1px solid var(--line)}
.faq-q{
  width:100%;background:transparent;border:0;text-align:left;cursor:pointer;
  padding:22px 46px 22px 0;position:relative;font-size:17px;font-weight:600;color:var(--text);
  transition:color 180ms ease;
}
.faq-q:hover{color:var(--brand)}
.faq-q::after{
  content:"";position:absolute;right:8px;top:50%;width:10px;height:10px;
  border-right:2px solid var(--brand);border-bottom:2px solid var(--brand);
  transform:translateY(-70%) rotate(45deg);transition:transform 200ms ease;
}
.faq-item.open .faq-q{color:var(--brand)}
.faq-item.open .faq-q::after{transform:translateY(-30%) rotate(-135deg)}
.faq-a{
  max-height:0;overflow:hidden;transition:max-height 260ms ease;
}
.faq-a .inner{padding:0 40px 24px 0;background:transparent}
.faq-a p{font-size:15.5px;margin-bottom:10px}
.faq-a p:last-child{margin-bottom:0}

/* ---------- CTA 带 ---------- */
.cta-band{
  position:relative;overflow:hidden;
  background:linear-gradient(120deg,#0F3D3A 0%,#082925 100%);
  border-radius:var(--r-lg);
  padding:56px 48px;color:#fff;
}
.cta-band::before{
  content:"";position:absolute;inset:0;
  background:url('/assets/images/backpic/back-3.png') center/cover no-repeat;
  opacity:.12;
}
.cta-band::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(120deg,rgba(15,61,58,.92) 0%,rgba(8,41,37,.88) 100%);
}
.cta-inner{position:relative;z-index:2;display:grid;grid-template-columns:minmax(0,7fr) minmax(0,5fr);gap:40px;align-items:center}
.cta-inner h2{color:#fff;margin-bottom:12px}
.cta-inner p{color:rgba(255,255,255,.82);margin-bottom:0}
.cta-form{display:flex;gap:12px;flex-wrap:wrap}
.cta-form input{
  flex:1 1 200px;height:46px;border-radius:10px;border:1px solid rgba(255,255,255,.28);
  background:rgba(255,255,255,.08);color:#fff;padding:0 16px;font-size:15px;
}
.cta-form input::placeholder{color:rgba(255,255,255,.55)}
.cta-form input:focus{outline:none;border-color:var(--accent-soft);box-shadow:0 0 0 3px rgba(246,199,122,.22)}
.cta-note{font-size:13px;color:rgba(255,255,255,.6);margin-top:12px}

/* ---------- 页脚 ---------- */
.site-footer{
  background:var(--brand-deep);
  color:rgba(255,255,255,.72);
  padding:64px 0 28px;
  margin-top:88px;
}
.footer-grid{
  display:grid;
  grid-template-columns:minmax(0,1.5fr) minmax(0,1fr) minmax(0,1fr) minmax(0,1.1fr);
  gap:40px;
  padding-bottom:40px;
  border-bottom:1px solid rgba(255,255,255,.12);
}
.site-footer .brand{color:#fff;font-size:19px;display:inline-flex;align-items:baseline;margin-bottom:14px}
.footer-desc{font-size:14.5px;color:rgba(255,255,255,.66);line-height:1.85;margin:0}
.footer-col h4{font-size:15px;color:#fff;margin-bottom:16px;font-weight:600}
.footer-col a{display:block;font-size:14.5px;color:rgba(255,255,255,.7);padding:5px 0}
.footer-col a:hover{color:#fff}
.footer-col p{font-size:14.5px;color:rgba(255,255,255,.7);margin:0 0 6px}
.footer-bottom{
  display:flex;justify-content:space-between;flex-wrap:wrap;gap:12px;
  padding-top:22px;font-size:13.5px;color:rgba(255,255,255,.55);
}
.footer-bottom a{color:rgba(255,255,255,.75)}
.footer-bottom a:hover{color:#fff}

/* ---------- 返回顶部 ---------- */
.to-top{
  position:fixed;right:24px;bottom:24px;width:46px;height:46px;border-radius:999px;
  background:var(--brand);color:#fff;border:0;display:grid;place-items:center;
  cursor:pointer;box-shadow:var(--sh2);opacity:0;visibility:hidden;
  transition:opacity 200ms ease,visibility 200ms ease,transform 180ms ease;z-index:1020;
}
.to-top.show{opacity:1;visibility:visible}
.to-top:hover{background:var(--brand-deep);transform:translateY(-2px)}

/* ---------- 响应式 ---------- */
@media (max-width:1199px){
  .flow-wrap,.module-wrap,.faq-wrap{grid-template-columns:1fr;gap:36px}
  .aside-card{position:static}
}
@media (max-width:991px){
  .nav-menu{display:none}
  .nav-inner{grid-template-columns:minmax(0,1fr) auto}
  .icon-btn{display:none}
  .hamburger{display:grid}
  .section{padding:64px 0}
  .page-banner{padding:118px 0 52px}
  .split-card.a,.split-card.b{grid-template-columns:1fr}
  .split-media{min-height:240px;order:-1}
  .cta-inner{grid-template-columns:1fr}
  .stagger{grid-template-columns:1fr}
  .stagger-card.wide{flex-direction:column;align-items:flex-start}
  .stagger-card.wide .thumb{width:100%;flex:0 0 auto}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
}
@media (max-width:575px){
  body{font-size:16px}
  .section{padding:56px 0}
  .page-banner{margin-top:-64px;padding:110px 0 46px}
  .page-banner h1{font-size:clamp(24px,7vw,30px)}
  .split-body{padding:26px 22px}
  .tl-body{padding:20px}
  .timeline-item{grid-template-columns:44px minmax(0,1fr);gap:14px}
  .tl-num{width:44px;height:44px;font-size:15px}
  .timeline-item::before{left:21px;top:48px}
  .module-item{grid-template-columns:minmax(0,1fr);}
  .module-item .icon{order:-1}
  .cta-band{padding:38px 24px}
  .cta-form{flex-direction:column}
  .cta-form input,.cta-form .btn{width:100%}
  .footer-grid{grid-template-columns:1fr}
  .footer-bottom{flex-direction:column}
  .to-top{right:16px;bottom:16px}
  .nav-cta{padding:0 14px;font-size:14px;height:38px}
  .brand{font-size:17px}
}

/* roulang page: category3 */
:root{
  --brand:#0F3D3A;
  --brand-deep:#082925;
  --brand-soft:#EAF2F0;
  --amber:#E07B2C;
  --amber-soft:#F6C77A;
  --bg:#F7F5F0;
  --card:#FFFFFF;
  --ink:#14201D;
  --muted:#4A5754;
  --line:#E2DED5;
  --ok:#2F7A5A;
  --warn:#B4552D;
  --info:#2E6E8E;
  --r-sm:8px;
  --r:14px;
  --r-lg:22px;
  --r-pill:999px;
  --sh-1:0 1px 2px rgba(20,32,29,.05);
  --sh-2:0 12px 28px -14px rgba(11,43,39,.22);
  --container:1180px;
  --bs-primary:#0F3D3A;
  --bs-body-font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC",system-ui,sans-serif;
  --bs-body-color:#14201D;
  --bs-border-radius:14px;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC",system-ui,sans-serif;
  font-size:16.5px;
  line-height:1.85;
  color:var(--ink);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;height:auto;}
a{color:var(--brand);text-decoration:none;}
a:hover{color:var(--brand-deep);}
button,input{font-family:inherit;}
:focus-visible{outline:2px solid var(--amber);outline-offset:2px;}
h1,h2,h3,h4{margin:0;line-height:1.3;font-weight:700;color:var(--ink);}
p{margin:0 0 1em;}
p:last-child{margin-bottom:0;}
ul{margin:0;padding:0;list-style:none;}
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 24px;}
@media (max-width:575.98px){.container{padding:0 16px;}}

/* ---------- header ---------- */
.site-header{
  position:fixed;top:0;left:0;right:0;z-index:1030;
  height:64px;
  background:rgba(247,245,240,.94);
  backdrop-filter:blur(10px);
  border-bottom:1px solid transparent;
  transition:height .18s ease,background .18s ease,box-shadow .18s ease,border-color .18s ease;
}
.site-header.scrolled{
  height:56px;
  background:#F7F5F0;
  border-bottom:1px solid var(--line);
  box-shadow:var(--sh-1);
}
.nav-wrap{
  height:100%;
  display:grid;
  grid-template-columns:minmax(0,1.4fr) minmax(0,1fr);
  align-items:center;
  gap:24px;
}
.nav-left{display:flex;align-items:center;gap:26px;min-width:0;}
.brand{font-size:19px;letter-spacing:.2px;color:var(--brand);white-space:nowrap;}
.brand .b1{font-weight:700;}
.brand .b2{font-weight:500;}
.nav-menu{display:flex;align-items:center;gap:2px;}
.nav-menu a{
  display:inline-block;
  font-size:15px;color:var(--muted);
  padding:7px 13px;border-radius:var(--r-pill);
  transition:color .18s ease,background .18s ease;
  white-space:nowrap;
}
.nav-menu a:hover{color:var(--brand);background:var(--brand-soft);}
.nav-menu a.active{color:var(--brand);font-weight:600;background:var(--brand-soft);}
.nav-right{display:flex;align-items:center;justify-content:flex-end;gap:12px;}
.icon-btn{
  width:38px;height:38px;border-radius:var(--r-pill);
  border:1px solid var(--line);background:#fff;color:var(--brand);
  display:inline-flex;align-items:center;justify-content:center;
  cursor:pointer;transition:border-color .18s ease,background .18s ease,transform .18s ease;
}
.icon-btn:hover{border-color:rgba(15,61,58,.35);background:var(--brand-soft);transform:translateY(-1px);}
.icon-btn svg{width:17px;height:17px;}
.burger{
  display:none;width:40px;height:40px;border-radius:var(--r-pill);
  border:1px solid var(--line);background:#fff;cursor:pointer;
  padding:0;align-items:center;justify-content:center;
}
.burger span{display:block;width:16px;height:2px;background:var(--brand);border-radius:2px;transition:transform .2s ease;}
.burger span + span{margin-top:5px;}

/* ---------- buttons ---------- */
.btn-p,.btn-o,.btn-w{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 26px;border-radius:var(--r-pill);
  font-size:15.5px;font-weight:600;cursor:pointer;
  border:1px solid transparent;transition:all .18s ease;
}
.btn-p{background:var(--brand);color:#fff;box-shadow:var(--sh-1);}
.btn-p:hover{background:var(--brand-deep);color:#fff;transform:translateY(-1px);box-shadow:var(--sh-2);}
.btn-o{background:transparent;color:var(--brand);border-color:rgba(15,61,58,.35);}
.btn-o:hover{background:var(--brand-soft);color:var(--brand);transform:translateY(-1px);}
.btn-w{background:#fff;color:var(--brand);}
.btn-w:hover{background:var(--brand-soft);color:var(--brand-deep);transform:translateY(-1px);}
.btn-sm{height:40px;padding:0 20px;font-size:14.5px;}
.text-link{
  display:inline-flex;align-items:center;gap:6px;
  color:var(--brand);font-weight:600;font-size:15px;
  text-decoration:underline;text-underline-offset:5px;
  text-decoration-color:var(--amber-soft);text-decoration-thickness:2px;
  transition:color .18s ease,text-decoration-color .18s ease;
}
.text-link:hover{color:var(--brand-deep);text-decoration-color:var(--amber);}

/* ---------- badges / chips ---------- */
.badge-p,.badge-a,.badge-s,.badge-i{
  display:inline-flex;align-items:center;
  height:26px;padding:0 12px;border-radius:var(--r-pill);
  font-size:13px;font-weight:600;letter-spacing:.2px;
}
.badge-p{background:var(--brand-soft);color:var(--brand);}
.badge-a{background:rgba(224,123,44,.13);color:#A9551A;}
.badge-s{background:rgba(47,122,90,.13);color:var(--ok);}
.badge-i{background:rgba(46,110,142,.13);color:var(--info);}
.chip-row{display:flex;flex-wrap:wrap;gap:10px;}
.chip{
  display:inline-flex;align-items:center;height:34px;padding:0 16px;
  border-radius:var(--r-pill);border:1px solid var(--line);background:#fff;
  font-size:14px;color:var(--muted);transition:all .18s ease;
}
.chip.is-on{background:var(--brand);border-color:var(--brand);color:#fff;font-weight:600;}

/* ---------- page banner ---------- */
.page-banner{
  position:relative;overflow:hidden;
  padding:calc(64px + 56px) 0 60px;
  background:var(--brand-deep);
  color:#fff;
}
.page-banner .bg{
  position:absolute;inset:0;
  background-image:url('/assets/images/backpic/back-1.webp');
  background-size:cover;background-position:center;
  opacity:.18;
}
.page-banner .veil{
  position:absolute;inset:0;
  background:linear-gradient(100deg,rgba(8,41,37,.95) 0%,rgba(8,41,37,.82) 55%,rgba(8,41,37,.6) 100%);
}
.page-banner .inner{position:relative;z-index:2;}
.crumb{display:flex;align-items:center;gap:8px;font-size:13.5px;color:rgba(255,255,255,.72);margin-bottom:18px;}
.crumb a{color:rgba(255,255,255,.82);}
.crumb a:hover{color:#fff;}
.crumb .sp{color:var(--amber-soft);}
.page-banner h1{
  color:#fff;font-size:clamp(28px,4.4vw,44px);line-height:1.25;
  max-width:880px;
}
.page-banner .lead{
  margin-top:16px;max-width:700px;
  font-size:17px;line-height:1.85;color:rgba(255,255,255,.86);
}
.banner-facts{
  display:flex;flex-wrap:wrap;gap:32px;margin-top:30px;
  padding-top:24px;border-top:1px solid rgba(255,255,255,.16);
}
.fact{min-width:120px;}
.fact .n{
  font-size:30px;font-weight:700;color:var(--amber-soft);
  font-variant-numeric:tabular-nums;line-height:1.1;
  display:block;
}
.fact .l{font-size:13.5px;color:rgba(255,255,255,.72);margin-top:6px;display:block;}

/* ---------- sections ---------- */
.sec{padding:88px 0;}
.sec-alt{background:#fff;border-top:1px solid var(--line);border-bottom:1px solid var(--line);}
.sec-head{max-width:720px;margin-bottom:40px;}
.sec-head .eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13.5px;font-weight:600;color:var(--brand);
  letter-spacing:.6px;margin-bottom:14px;
}
.sec-head .eyebrow i{display:block;width:26px;height:3px;border-radius:2px;background:var(--amber);}
.sec-head h2{font-size:clamp(22px,3vw,34px);line-height:1.3;}
.sec-head p{margin-top:14px;color:var(--muted);font-size:16.5px;}
h2.with-bar{position:relative;padding-left:16px;}
h2.with-bar::before{
  content:"";position:absolute;left:0;top:.18em;bottom:.18em;width:3px;
  border-radius:3px;background:var(--brand);
}
.grid-7-5{display:grid;grid-template-columns:minmax(0,7fr) minmax(0,5fr);gap:48px;align-items:start;}
.grid-5-7{display:grid;grid-template-columns:minmax(0,5fr) minmax(0,7fr);gap:48px;align-items:center;}

/* ---------- highlight card ---------- */
.highlight-card{
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-lg);
  overflow:hidden;box-shadow:var(--sh-1);transition:all .18s ease;
}
.highlight-card:hover{transform:translateY(-2px);box-shadow:var(--sh-2);border-color:rgba(15,61,58,.3);}
.highlight-card img{width:100%;aspect-ratio:16/10;object-fit:cover;background:var(--brand-soft);}
.highlight-card .hc-body{padding:24px;}
.highlight-card h3{font-size:19px;margin:12px 0 10px;}
.highlight-card p{color:var(--muted);font-size:15.5px;}
.meta-line{
  margin-top:16px;padding-top:14px;border-top:1px dashed var(--line);
  font-size:13.5px;color:var(--muted);font-variant-numeric:tabular-nums;
}

/* ---------- point list ---------- */
.point-list{margin:24px 0 28px;display:grid;gap:14px;}
.point-list li{position:relative;padding-left:24px;color:var(--muted);font-size:16px;}
.point-list li::before{
  content:"";position:absolute;left:2px;top:.68em;
  width:8px;height:8px;border-radius:2px;background:var(--brand);
}
.point-list li strong{color:var(--ink);font-weight:600;}

/* ---------- numbered rhythm ---------- */
.num-list{display:grid;gap:0;}
.num-item{
  display:grid;grid-template-columns:64px minmax(0,1fr);
  gap:20px;padding:26px 0;border-bottom:1px solid var(--line);
}
.num-item:first-child{padding-top:0;}
.num-item:last-child{border-bottom:0;padding-bottom:0;}
.num-item .idx{
  font-size:26px;font-weight:700;color:var(--brand);
  font-variant-numeric:tabular-nums;letter-spacing:.5px;line-height:1.2;
}
.num-item h3{font-size:19px;margin-bottom:8px;}
.num-item p{color:var(--muted);font-size:16px;}

.figure-frame{
  border-radius:var(--r-lg);overflow:hidden;border:1px solid var(--line);
  background:var(--brand-soft);box-shadow:var(--sh-1);
}
.figure-frame img{width:100%;aspect-ratio:4/3;object-fit:cover;}
.figure-frame figcaption{
  background:#fff;padding:14px 20px;font-size:13.5px;color:var(--muted);
  border-top:1px solid var(--line);
}

/* ---------- timeline ---------- */
.timeline{margin-top:12px;border-top:1px solid var(--line);}
.tl-item{
  display:grid;grid-template-columns:132px minmax(0,1fr);
  gap:28px;padding:26px 18px 26px 18px;
  border-bottom:1px solid var(--line);
  transition:background .18s ease;
}
.tl-item:hover{background:rgba(234,242,240,.55);}
.tl-date{
  font-variant-numeric:tabular-nums;
  display:flex;flex-direction:column;gap:2px;padding-top:2px;
}
.tl-date .d{font-size:20px;font-weight:700;color:var(--brand);line-height:1.2;}
.tl-date .y{font-size:13px;color:var(--muted);letter-spacing:.6px;}
.tl-body h3{font-size:18.5px;margin-bottom:8px;}
.tl-body p{color:var(--muted);font-size:15.5px;max-width:760px;}
.tl-head{display:flex;flex-wrap:wrap;align-items:center;gap:12px;margin-bottom:8px;}
.tl-head h3{margin-bottom:0;}
.tl-body .text-link{margin-top:12px;font-size:14.5px;}

/* ---------- staggered cards ---------- */
.stagger{display:grid;grid-template-columns:minmax(0,2fr) minmax(0,1fr);gap:24px;align-items:start;}
.card{
  background:var(--card);border:1px solid var(--line);border-radius:var(--r);
  padding:26px;box-shadow:var(--sh-1);transition:all .18s ease;
}
.card:hover{transform:translateY(-2px);box-shadow:var(--sh-2);border-color:rgba(15,61,58,.3);}
.card h3{font-size:18.5px;margin-bottom:10px;}
.card p{color:var(--muted);font-size:15.8px;}
.card.tall{padding:30px;}
.card.dark{
  background:var(--brand);border-color:var(--brand);color:#fff;
}
.card.dark h3{color:#fff;}
.card.dark p{color:rgba(255,255,255,.82);}
.card.dark .badge-p{background:rgba(255,255,255,.14);color:#fff;}
.mini-metrics{display:flex;gap:26px;margin-top:20px;}
.mini-metrics .m .n{
  display:block;font-size:28px;font-weight:700;color:var(--amber-soft);
  font-variant-numeric:tabular-nums;line-height:1.15;
}
.mini-metrics .m .l{font-size:13px;color:rgba(255,255,255,.74);}

/* ---------- faq ---------- */
.faq-wrap{max-width:900px;}
.accordion-item{
  border:1px solid var(--line);border-radius:var(--r) !important;
  overflow:hidden;margin-bottom:14px;background:#fff;
  transition:border-color .18s ease,box-shadow .18s ease;
}
.accordion-item:has(.accordion-button:not(.collapsed)){
  border-color:rgba(15,61,58,.4);box-shadow:var(--sh-1);
}
.accordion-button{
  background:#fff;color:var(--ink);font-size:16.5px;font-weight:600;
  padding:20px 54px 20px 22px;box-shadow:none !important;
}
.accordion-button:not(.collapsed){background:var(--brand-soft);color:var(--brand);}
.accordion-button::after{
  content:"";width:9px;height:9px;
  border-right:2px solid var(--brand);border-bottom:2px solid var(--brand);
  transform:rotate(45deg);background-image:none !important;
  transition:transform .2s ease;margin-left:auto;
  position:absolute;right:24px;top:calc(50% - 7px);
}
.accordion-button:not(.collapsed)::after{transform:rotate(-135deg);}
.accordion-body{
  padding:4px 22px 22px;color:var(--muted);font-size:15.8px;
  background:var(--brand-soft);
}

/* ---------- CTA ---------- */
.cta-band{
  position:relative;overflow:hidden;background:var(--brand-deep);
  padding:72px 0;color:#fff;
}
.cta-band .bg{
  position:absolute;inset:0;
  background-image:url('/assets/images/backpic/back-2.png');
  background-size:cover;background-position:center;opacity:.11;
}
.cta-band .veil{position:absolute;inset:0;background:linear-gradient(90deg,rgba(8,41,37,.94),rgba(15,61,58,.78));}
.cta-band .inner{position:relative;z-index:2;display:grid;grid-template-columns:minmax(0,1.1fr) minmax(0,1fr);gap:44px;align-items:center;}
.cta-band h2{color:#fff;font-size:clamp(22px,3vw,32px);}
.cta-band p{margin-top:14px;color:rgba(255,255,255,.84);max-width:520px;}
.cta-form{display:flex;gap:12px;}
.cta-form input{
  flex:1;height:48px;padding:0 18px;border-radius:12px;
  border:1px solid rgba(255,255,255,.28);background:rgba(255,255,255,.1);
  color:#fff;font-size:15px;
}
.cta-form input::placeholder{color:rgba(255,255,255,.6);}
.cta-form input:focus{outline:none;border-color:var(--amber-soft);box-shadow:0 0 0 3px rgba(224,123,44,.22);}
.cta-note{margin-top:14px;font-size:13.5px;color:rgba(255,255,255,.66);}

/* ---------- footer ---------- */
.site-footer{background:#fff;border-top:1px solid var(--line);padding:64px 0 0;}
.footer-grid{display:grid;grid-template-columns:minmax(0,1.6fr) repeat(3,minmax(0,1fr));gap:40px;padding-bottom:44px;}
.footer-desc{color:var(--muted);font-size:15px;max-width:320px;margin-top:14px;}
.footer-col h4{font-size:15px;margin-bottom:16px;color:var(--ink);}
.footer-col a,.footer-col p{display:block;color:var(--muted);font-size:14.5px;margin-bottom:10px;}
.footer-col a:hover{color:var(--brand);}
.footer-bottom{
  border-top:1px solid var(--line);padding:22px 0;
  display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;
  font-size:13.5px;color:var(--muted);
}
.footer-bottom a{color:var(--muted);text-decoration:underline;text-underline-offset:4px;}
.footer-bottom a:hover{color:var(--brand);}

/* ---------- floating ---------- */
.float-dock{position:fixed;right:24px;bottom:24px;z-index:1020;display:flex;flex-direction:column;gap:12px;align-items:flex-end;}
.float-cta,.to-top{
  display:inline-flex;align-items:center;gap:8px;
  height:46px;padding:0 20px;border-radius:var(--r-pill);
  font-size:14.5px;font-weight:600;cursor:pointer;
  border:1px solid transparent;opacity:0;pointer-events:none;
  transform:translateY(8px);transition:all .2s ease;
  max-width:40vw;
}
.float-cta{background:var(--brand);color:#fff;box-shadow:var(--sh-2);}
.float-cta:hover{background:var(--brand-deep);color:#fff;}
.to-top{background:#fff;color:var(--brand);border-color:var(--line);box-shadow:var(--sh-1);padding:0 16px;}
.to-top:hover{border-color:rgba(15,61,58,.35);}
.float-dock.show .float-cta,.float-dock.show .to-top{opacity:1;pointer-events:auto;transform:translateY(0);}

/* ---------- drawer ---------- */
.drawer-mask{
  position:fixed;inset:0;background:rgba(8,41,37,.42);
  opacity:0;pointer-events:none;transition:opacity .2s ease;z-index:1040;
}
.drawer-mask.show{opacity:1;pointer-events:auto;}
.drawer{
  position:fixed;top:0;right:0;bottom:0;width:min(340px,88vw);
  background:var(--bg);z-index:1050;padding:24px;
  transform:translateX(102%);transition:transform .24s ease;
  display:flex;flex-direction:column;gap:26px;overflow-y:auto;
  box-shadow:-16px 0 40px -22px rgba(11,43,39,.4);
}
.drawer.show{transform:translateX(0);}
.drawer .d-head{display:flex;align-items:center;justify-content:space-between;}
.drawer .close{
  width:38px;height:38px;border-radius:var(--r-pill);border:1px solid var(--line);
  background:#fff;color:var(--brand);font-size:18px;cursor:pointer;line-height:1;
}
.drawer nav{display:flex;flex-direction:column;gap:6px;}
.drawer nav a{
  font-size:19px;font-weight:600;color:var(--ink);
  padding:14px 4px;border-bottom:1px solid var(--line);
}
.drawer nav a.active{color:var(--brand);}
.drawer .d-foot{margin-top:auto;font-size:14px;color:var(--muted);display:grid;gap:8px;}

@media (max-width:1199.98px){
  .grid-7-5,.grid-5-7{gap:36px;}
}
@media (max-width:991.98px){
  .nav-menu{display:none;}
  .icon-btn{display:none;}
  .burger{display:inline-flex;}
  .nav-wrap{grid-template-columns:minmax(0,1fr) auto;}
  .grid-7-5,.grid-5-7{grid-template-columns:minmax(0,1fr);gap:34px;}
  .sec{padding:64px 0;}
  .cta-band .inner{grid-template-columns:minmax(0,1fr);gap:28px;}
  .stagger{grid-template-columns:minmax(0,1fr);}
  .footer-grid{grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:32px;}
}
@media (max-width:767.98px){
  .tl-item{grid-template-columns:minmax(0,1fr);gap:10px;padding:22px 12px;}
  .tl-date{flex-direction:row;align-items:baseline;gap:8px;}
  .tl-date .d{font-size:17px;}
  .num-item{grid-template-columns:44px minmax(0,1fr);gap:14px;}
  .num-item .idx{font-size:21px;}
  .banner-facts{gap:22px;}
  .cta-form{flex-direction:column;}
  .cta-form .btn-w{width:100%;}
}
@media (max-width:575.98px){
  body{font-size:16px;}
  .sec{padding:56px 0;}
  .footer-grid{grid-template-columns:minmax(0,1fr);}
  .footer-bottom{flex-direction:column;}
  .float-dock{right:16px;bottom:16px;}
  .brand{font-size:17px;}
  .page-banner{padding:calc(64px + 40px) 0 44px;}
  .mini-metrics{gap:18px;}
}

/* roulang page: category2 */
:root{
  --brand:#0F3D3A;
  --brand-deep:#082925;
  --brand-soft:#EAF2F0;
  --amber:#E07B2C;
  --amber-soft:#F6C77A;
  --bg:#F7F5F0;
  --card:#FFFFFF;
  --ink:#14201D;
  --ink-2:#4A5754;
  --line:#E2DED5;
  --ok:#2F7A5A;
  --warn:#B4552D;
  --info:#2E6E8E;
  --r-sm:8px;
  --r:14px;
  --r-lg:22px;
  --r-pill:999px;
  --sh-1:0 1px 2px rgba(20,32,29,.05);
  --sh-2:0 12px 28px -14px rgba(11,43,39,.22);
  --bs-primary:#0F3D3A;
  --bs-primary-rgb:15,61,58;
  --bs-body-color:#14201D;
  --bs-body-bg:#F7F5F0;
  --bs-border-color:#E2DED5;
  --bs-border-radius:14px;
  --bs-link-color:#0F3D3A;
  --bs-link-hover-color:#082925;
  --bs-font-sans-serif:"PingFang SC","Microsoft YaHei","Noto Sans SC",system-ui,sans-serif;
  --bs-body-font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC",system-ui,sans-serif;
}
*{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--bg);
  color:var(--ink);
  font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC",system-ui,sans-serif;
  font-size:16.5px;
  line-height:1.85;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;}
a{color:var(--brand);text-decoration:none;transition:color 180ms ease;}
a:hover{color:var(--brand-deep);}
button{font-family:inherit;}
h1,h2,h3,h4{color:var(--ink);font-weight:700;margin:0;letter-spacing:.01em;}
p{margin:0;}
ul{margin:0;padding:0;list-style:none;}
.container{max-width:1180px;padding-left:20px;padding-right:20px;margin:0 auto;}
.num{font-variant-numeric:tabular-nums;}
:focus-visible{outline:2px solid var(--amber);outline-offset:2px;border-radius:6px;}

/* ---------- 按钮 ---------- */
.btn-brand,.btn-ghost,.btn-amber,.btn-light-solid{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 26px;border-radius:var(--r-pill);
  font-size:15px;font-weight:600;border:1px solid transparent;
  transition:background 180ms ease,color 180ms ease,transform 180ms ease,border-color 180ms ease,box-shadow 180ms ease;
  cursor:pointer;white-space:nowrap;
}
.btn-brand{background:var(--brand);color:#fff;}
.btn-brand:hover{background:var(--brand-deep);color:#fff;transform:translateY(-1px);box-shadow:var(--sh-2);}
.btn-ghost{background:transparent;color:var(--brand);border-color:var(--brand);}
.btn-ghost:hover{background:var(--brand-soft);color:var(--brand-deep);transform:translateY(-1px);}
.btn-amber{background:var(--amber);color:#22160b;}
.btn-amber:hover{background:var(--amber-soft);color:#22160b;transform:translateY(-1px);}
.btn-light-solid{background:#fff;color:var(--brand);}
.btn-light-solid:hover{background:var(--brand-soft);color:var(--brand-deep);transform:translateY(-1px);}
.btn-sm-h{height:40px;padding:0 18px;font-size:14px;}
.link-text{color:var(--brand);font-weight:600;text-decoration:underline;text-underline-offset:4px;text-decoration-thickness:1px;}
.link-text:hover{color:var(--amber);}

/* ---------- 导航 ---------- */
.site-header{
  position:fixed;top:0;left:0;right:0;z-index:1030;
  background:transparent;border-bottom:1px solid transparent;
  transition:background 200ms ease,box-shadow 200ms ease,border-color 200ms ease;
}
.site-header.is-scrolled{
  background:rgba(247,245,240,.96);
  backdrop-filter:blur(10px);
  border-bottom-color:var(--line);
  box-shadow:var(--sh-1);
}
.nav-inner{
  display:grid;grid-template-columns:minmax(0,1.4fr) minmax(0,1fr);
  align-items:center;height:64px;transition:height 200ms ease;
}
.site-header.is-scrolled .nav-inner{height:56px;}
.nav-left{display:flex;align-items:center;gap:36px;min-width:0;}
.nav-right{display:flex;align-items:center;justify-content:flex-end;gap:12px;min-width:0;}
.brand{display:inline-flex;align-items:baseline;font-size:19px;letter-spacing:.02em;color:#fff;line-height:1;}
.brand .b1{font-weight:700;}
.brand .b2{font-weight:500;margin-left:2px;}
.brand-dark{color:var(--brand);}
.site-header.is-scrolled .brand{color:var(--brand);}
.nav-menu{display:flex;align-items:center;gap:28px;}
.nav-menu a{
  position:relative;font-size:15px;font-weight:500;color:rgba(255,255,255,.86);
  padding:6px 0;
}
.nav-menu a::after{
  content:"";position:absolute;left:0;right:0;bottom:0;height:2px;border-radius:2px;
  background:var(--amber);transform:scaleX(0);transform-origin:left;transition:transform 180ms ease;
}
.nav-menu a:hover{color:#fff;}
.nav-menu a.active{color:#fff;font-weight:600;}
.nav-menu a.active::after,.nav-menu a:hover::after{transform:scaleX(1);}
.site-header.is-scrolled .nav-menu a{color:var(--ink-2);}
.site-header.is-scrolled .nav-menu a:hover,
.site-header.is-scrolled .nav-menu a.active{color:var(--brand);}
.icon-btn{
  width:40px;height:40px;border-radius:50%;display:inline-flex;align-items:center;justify-content:center;
  border:1px solid rgba(255,255,255,.38);background:transparent;color:#fff;font-size:15px;
  transition:background 180ms ease,border-color 180ms ease,color 180ms ease;
}
.icon-btn:hover{background:rgba(255,255,255,.14);}
.site-header.is-scrolled .icon-btn{border-color:var(--line);color:var(--brand);background:#fff;}
.site-header.is-scrolled .icon-btn:hover{background:var(--brand-soft);}
.menu-toggle{
  display:none;width:42px;height:42px;border-radius:12px;border:1px solid rgba(255,255,255,.38);
  background:transparent;color:#fff;align-items:center;justify-content:center;
}
.site-header.is-scrolled .menu-toggle{border-color:var(--line);color:var(--brand);background:#fff;}
.burger{display:inline-flex;flex-direction:column;gap:5px;width:20px;}
.burger i{display:block;height:2px;background:currentColor;border-radius:2px;}

/* 移动抽屉 */
.mobile-drawer{background:var(--bg);width:min(86vw,360px);}
.mobile-drawer .offcanvas-header{border-bottom:1px solid var(--line);padding:18px 20px;}
.mobile-drawer .offcanvas-body{padding:20px;display:flex;flex-direction:column;gap:24px;}
.drawer-nav{display:flex;flex-direction:column;gap:2px;}
.drawer-nav a{
  display:block;padding:14px 4px;font-size:17px;font-weight:600;color:var(--ink);
  border-bottom:1px solid var(--line);
}
.drawer-nav a.active{color:var(--brand);}
.drawer-foot{border-top:1px solid var(--line);padding-top:20px;display:flex;flex-direction:column;gap:12px;}
.drawer-foot p{font-size:14px;color:var(--ink-2);}
.mobile-drawer .btn-close{
  background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16' fill='%2314201D'%3E%3Cpath d='M2.2 2.2a1 1 0 0 1 1.4 0L8 6.6l4.4-4.4a1 1 0 1 1 1.4 1.4L9.4 8l4.4 4.4a1 1 0 0 1-1.4 1.4L8 9.4l-4.4 4.4a1 1 0 0 1-1.4-1.4L6.6 8 2.2 3.6a1 1 0 0 1 0-1.4Z'/%3E%3C/svg%3E");
  opacity:.55;
}
.mobile-drawer .btn-close:hover{opacity:1;}

/* ---------- 页面横幅 ---------- */
.page-banner{
  position:relative;overflow:hidden;color:#fff;
  min-height:280px;
  padding:136px 0 64px;
  background-image:linear-gradient(120deg,rgba(8,41,37,.94) 0%,rgba(15,61,58,.86) 55%,rgba(15,61,58,.72) 100%),url("/assets/images/backpic/back-1.webp");
  background-size:cover,cover;
  background-position:center,center;
}
.page-banner::after{
  content:"";position:absolute;left:0;right:0;bottom:-1px;height:56px;
  background:linear-gradient(180deg,rgba(247,245,240,0),var(--bg));
}
.banner-inner{position:relative;z-index:2;max-width:760px;}
.crumb{display:flex;align-items:center;gap:10px;font-size:13.5px;color:rgba(255,255,255,.72);margin-bottom:20px;flex-wrap:wrap;}
.crumb a{color:rgba(255,255,255,.82);}
.crumb a:hover{color:#fff;}
.crumb .sep{color:rgba(255,255,255,.42);}
.crumb .now{color:#fff;font-weight:600;}
.page-banner h1{
  color:#fff;font-size:clamp(28px,4.4vw,44px);line-height:1.25;font-weight:700;
}
.banner-sub{margin-top:18px;font-size:17px;line-height:1.8;color:rgba(255,255,255,.82);max-width:640px;}
.banner-tags{display:flex;flex-wrap:wrap;gap:10px;margin-top:26px;}
.tag-pill{
  display:inline-flex;align-items:center;gap:8px;height:34px;padding:0 16px;border-radius:var(--r-pill);
  font-size:13.5px;font-weight:600;background:rgba(255,255,255,.12);border:1px solid rgba(255,255,255,.22);color:#fff;
}
.tag-pill i{color:var(--amber-soft);font-size:12px;}

/* ---------- 通用板块 ---------- */
.section{padding:88px 0;}
.section-tight{padding:64px 0;}
.section-head{max-width:720px;margin-bottom:44px;}
.section-head h2{font-size:clamp(22px,3vw,34px);line-height:1.3;}
.section-head p{margin-top:14px;color:var(--ink-2);font-size:16.5px;}
.h2-mark{display:flex;align-items:center;gap:14px;}
.h2-mark::before{
  content:"";flex:none;width:30px;height:3px;border-radius:2px;background:var(--amber);
}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;font-size:13px;font-weight:700;letter-spacing:.14em;
  color:var(--brand);text-transform:uppercase;margin-bottom:14px;
}
.eyebrow::before{content:"";width:18px;height:2px;background:var(--amber);border-radius:2px;}

/* ---------- 胶囊要点条 ---------- */
.point-stack{display:flex;flex-direction:column;gap:16px;}
.point-pill{
  display:grid;grid-template-columns:64px minmax(0,1fr) auto;align-items:center;gap:22px;
  padding:22px 26px;border-radius:var(--r-pill);border:1px solid var(--line);background:#fff;
  box-shadow:var(--sh-1);transition:transform 180ms ease,box-shadow 180ms ease,border-color 180ms ease;
}
.point-pill:hover{transform:translateY(-2px);box-shadow:var(--sh-2);border-color:rgba(15,61,58,.3);}
.point-pill .pn{
  width:56px;height:56px;border-radius:50%;display:flex;align-items:center;justify-content:center;
  font-size:15px;font-weight:700;background:var(--brand-soft);color:var(--brand);
}
.point-pill h3{font-size:18px;margin-bottom:4px;}
.point-pill p{font-size:15px;color:var(--ink-2);line-height:1.75;}
.point-pill .pmeta{font-size:13px;font-weight:600;color:var(--brand);white-space:nowrap;}
.point-pill.tone-a{background:var(--brand-soft);border-color:rgba(15,61,58,.16);}
.point-pill.tone-a .pn{background:#fff;}
.point-pill.tone-b{background:#fff;}
.point-pill.tone-b .pn{background:rgba(224,123,44,.14);color:#8f4a13;}
.point-pill.tone-c{background:#fff;border-color:rgba(224,123,44,.4);}
.point-pill.tone-c .pmeta{color:#8f4a13;}

/* ---------- 非对称分栏 ---------- */
.split{display:grid;grid-template-columns:minmax(0,7fr) minmax(0,5fr);gap:40px;align-items:start;}
.split.reverse{grid-template-columns:minmax(0,5fr) minmax(0,7fr);}
.lead-sm{margin-top:14px;color:var(--ink-2);font-size:16.5px;}
.check-list{margin-top:26px;display:flex;flex-direction:column;gap:14px;}
.check-list li{
  display:grid;grid-template-columns:24px minmax(0,1fr);gap:14px;align-items:start;
  padding:16px 20px;background:#fff;border:1px solid var(--line);border-radius:var(--r);
  transition:border-color 180ms ease,transform 180ms ease;
}
.check-list li:hover{border-color:rgba(15,61,58,.3);transform:translateY(-2px);}
.check-list .tick{
  width:24px;height:24px;border-radius:50%;background:var(--brand-soft);color:var(--brand);
  display:flex;align-items:center;justify-content:center;font-size:11px;margin-top:3px;
}
.check-list strong{display:block;font-size:16px;margin-bottom:2px;}
.check-list span{font-size:14.5px;color:var(--ink-2);line-height:1.75;}
.media-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);overflow:hidden;box-shadow:var(--sh-1);
}
.media-card img{width:100%;aspect-ratio:4/3;object-fit:cover;background:var(--brand-soft);}
.media-card-body{padding:22px 24px 26px;}
.media-card-body h3{font-size:18px;margin-bottom:8px;}
.media-card-body p{font-size:14.5px;color:var(--ink-2);line-height:1.8;}
.mini-stat{
  display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:14px;margin-top:20px;
}
.mini-stat div{background:var(--brand-soft);border-radius:var(--r);padding:14px 16px;}
.mini-stat b{display:block;font-size:26px;color:var(--brand);font-variant-numeric:tabular-nums;line-height:1.2;}
.mini-stat span{font-size:13px;color:var(--ink-2);}

/* ---------- 时间线 ---------- */
.timeline{position:relative;margin-top:8px;}
.tl-item{
  position:relative;display:grid;grid-template-columns:48px minmax(0,1fr);gap:22px;
  padding-bottom:34px;
}
.tl-item:last-child{padding-bottom:0;}
.tl-item::before{
  content:"";position:absolute;left:23px;top:58px;bottom:6px;width:2px;background:var(--line);
}
.tl-item:last-child::before{display:none;}
.tl-dot{
  width:48px;height:48px;border-radius:50%;display:flex;align-items:center;justify-content:center;
  background:#fff;border:2px solid var(--brand);color:var(--brand);font-weight:700;font-size:15px;
  font-variant-numeric:tabular-nums;
}
.tl-body h3{font-size:18px;margin-bottom:6px;}
.tl-body p{color:var(--ink-2);font-size:15.5px;line-height:1.8;}

/* ---------- FAQ ---------- */
.faq-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:28px;align-items:start;}
.faq-group-title{
  display:flex;align-items:center;gap:10px;font-size:16px;font-weight:700;margin-bottom:16px;color:var(--brand);
}
.faq-group-title::before{content:"";width:9px;height:9px;border-radius:50%;background:var(--amber);flex:none;}
.accordion-item{
  border:1px solid var(--line);border-radius:var(--r);margin-bottom:12px;overflow:hidden;background:#fff;
  box-shadow:var(--sh-1);
}
.accordion-item:last-child{margin-bottom:0;}
.accordion-button{
  background:#fff;color:var(--ink);font-size:15.5px;font-weight:600;line-height:1.6;
  padding:18px 48px 18px 20px;box-shadow:none!important;border-radius:var(--r)!important;
}
.accordion-button:not(.collapsed){
  color:var(--brand);background:var(--brand-soft);border-bottom:1px solid rgba(15,61,58,.12);
}
.accordion-button::after{
  width:16px;height:16px;background-size:16px;background-position:center;
  background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16' fill='%230F3D3A'%3E%3Cpath d='M8 1.8a.8.8 0 0 1 .8.8v4.6h4.6a.8.8 0 0 1 0 1.6H8.8v4.6a.8.8 0 0 1-1.6 0V8.8H2.6a.8.8 0 0 1 0-1.6h4.6V2.6A.8.8 0 0 1 8 1.8Z'/%3E%3C/svg%3E");
  transition:transform 180ms ease;
}
.accordion-button:not(.collapsed)::after{
  transform:rotate(180deg);
  background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16' fill='%23E07B2C'%3E%3Cpath d='M2.6 7.2h10.8a.8.8 0 0 1 0 1.6H2.6a.8.8 0 0 1 0-1.6Z'/%3E%3C/svg%3E");
}
.accordion-body{
  background:#FBF9F5;color:var(--ink-2);font-size:15px;line-height:1.85;padding:18px 20px 22px;
}
.accordion-body p+p{margin-top:10px;}

/* ---------- 长文说明区 ---------- */
.prose{max-width:780px;line-height:1.9;font-size:16.5px;color:var(--ink-2);}
.prose h3{font-size:19px;color:var(--ink);margin:32px 0 10px;}
.prose h3:first-child{margin-top:0;}
.prose p+p{margin-top:14px;}
.quote-box{
  margin-top:26px;padding:20px 22px;background:var(--brand-soft);border-left:3px solid var(--brand);
  border-radius:0 var(--r) var(--r) 0;color:var(--brand-deep);font-size:15.5px;line-height:1.85;
}

/* ---------- CTA 带 ---------- */
.cta-band{
  position:relative;overflow:hidden;background:var(--brand-deep);color:#fff;padding:72px 0;
}
.cta-band::before{
  content:"";position:absolute;inset:0;
  background-image:url("/assets/images/backpic/back-2.png");
  background-size:cover;background-position:center;opacity:.12;
}
.cta-band::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(90deg,rgba(8,41,37,.92) 0%,rgba(8,41,37,.72) 60%,rgba(8,41,37,.6) 100%);
}
.cta-inner{position:relative;z-index:2;display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:44px;align-items:center;}
.cta-inner h2{color:#fff;font-size:clamp(22px,3vw,32px);line-height:1.35;}
.cta-inner p{margin-top:14px;color:rgba(255,255,255,.82);font-size:16px;}
.cta-form{display:flex;gap:12px;}
.cta-form input{
  flex:1;height:48px;border-radius:10px;border:1px solid rgba(255,255,255,.28);
  background:rgba(255,255,255,.08);color:#fff;padding:0 16px;font-size:15px;
}
.cta-form input::placeholder{color:rgba(255,255,255,.58);}
.cta-form input:focus{outline:none;border-color:var(--amber-soft);box-shadow:0 0 0 3px rgba(224,123,44,.28);}
.cta-note{margin-top:14px;font-size:13px;color:rgba(255,255,255,.62);}

/* ---------- 页脚 ---------- */
.site-footer{background:#F2EFE8;border-top:1px solid var(--line);padding:64px 0 28px;}
.footer-grid{display:grid;grid-template-columns:minmax(0,1.4fr) repeat(3,minmax(0,1fr));gap:36px;}
.footer-desc{margin-top:16px;font-size:14.5px;color:var(--ink-2);line-height:1.8;max-width:320px;}
.footer-col h4{font-size:15px;margin-bottom:16px;}
.footer-col a{display:block;font-size:14.5px;color:var(--ink-2);padding:5px 0;}
.footer-col a:hover{color:var(--brand);}
.footer-col p{font-size:14.5px;color:var(--ink-2);padding:4px 0;}
.footer-bottom{
  margin-top:44px;padding-top:22px;border-top:1px solid var(--line);
  display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;font-size:13.5px;color:var(--ink-2);
}
.footer-bottom a{color:var(--ink-2);text-decoration:underline;text-underline-offset:3px;}
.footer-bottom a:hover{color:var(--brand);}

/* ---------- 浮动操作 ---------- */
.float-bar{
  position:fixed;right:24px;bottom:24px;z-index:1020;display:flex;flex-direction:column;gap:12px;
  opacity:0;pointer-events:none;transform:translateY(10px);transition:opacity 200ms ease,transform 200ms ease;
}
.float-bar.show{opacity:1;pointer-events:auto;transform:none;}
.float-btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 20px;border-radius:var(--r-pill);font-size:14px;font-weight:600;
  background:var(--brand);color:#fff;box-shadow:var(--sh-2);border:none;max-width:40vw;
}
.float-btn:hover{background:var(--brand-deep);color:#fff;}
.float-btn.ghost{background:#fff;color:var(--brand);border:1px solid var(--line);box-shadow:var(--sh-1);}
.float-btn.ghost:hover{background:var(--brand-soft);}

/* ---------- 响应式 ---------- */
@media (max-width:1199px){
  .container{max-width:1000px;}
}
@media (max-width:991px){
  .nav-menu{display:none;}
  .menu-toggle{display:inline-flex;}
  .nav-inner{grid-template-columns:minmax(0,1fr) auto;}
  .icon-btn{display:none;}
  .split,.split.reverse{grid-template-columns:minmax(0,1fr);gap:32px;}
  .faq-grid{grid-template-columns:minmax(0,1fr);gap:22px;}
  .cta-inner{grid-template-columns:minmax(0,1fr);gap:28px;}
  .footer-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:30px;}
}
@media (max-width:767px){
  body{font-size:16px;}
  .section{padding:56px 0;}
  .section-tight{padding:44px 0;}
  .page-banner{padding:118px 0 56px;min-height:240px;}
  .banner-sub{font-size:15.5px;}
  .point-pill{grid-template-columns:52px minmax(0,1fr);border-radius:var(--r);padding:18px 20px;gap:16px;}
  .point-pill .pmeta{grid-column:2;margin-top:6px;}
  .point-pill .pn{width:46px;height:46px;font-size:14px;}
  .cta-form{flex-direction:column;}
  .cta-form .btn-amber{width:100%;}
  .footer-grid{grid-template-columns:minmax(0,1fr);}
  .footer-bottom{flex-direction:column;}
  .float-bar{right:16px;bottom:16px;}
  .float-btn{height:44px;padding:0 16px;font-size:13.5px;}
}
@media (max-width:520px){
  .brand{font-size:17px;}
  .nav-left{gap:16px;}
  .mini-stat{grid-template-columns:minmax(0,1fr);}
  .tl-item{grid-template-columns:40px minmax(0,1fr);gap:16px;}
  .tl-dot{width:40px;height:40px;font-size:14px;}
  .tl-item::before{left:19px;top:50px;}
}