/* roulang page: index */
:root{
  --brand-900:#0e2a1e;
  --brand-700:#175139;
  --brand-500:#1f8a5b;
  --brand-300:#7cc3a2;
  --accent-500:#f4761b;
  --accent-600:#da6510;
  --accent-100:#fdf0e3;
  --bg:#f5faf7;
  --surface:#ffffff;
  --line:#dde8e1;
  --ink-900:#13211a;
  --ink-700:#3a4a41;
  --ink-500:#6d7d74;
  --radius-sm:8px;
  --radius-btn:10px;
  --radius-card:16px;
  --radius-block:22px;
  --shadow-1:0 2px 10px rgba(14,42,30,.06);
  --shadow-2:0 12px 30px rgba(14,42,30,.12);
  --container:1200px;
  --t:180ms ease-out;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:"HarmonyOS Sans SC","PingFang SC","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,"Segoe UI",sans-serif;
  background:var(--bg);
  color:var(--ink-700);
  font-size:16px;
  line-height:1.8;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block}
a{color:var(--brand-500);text-decoration:none;transition:color var(--t)}
a:hover{color:var(--brand-700)}
a:focus-visible,button:focus-visible,input:focus-visible,.accordion-button:focus-visible{outline:2px solid var(--brand-500);outline-offset:2px}
h1,h2,h3,h4{margin:0;color:var(--ink-900);font-weight:700;line-height:1.3}
p{margin:0}
ul{margin:0;padding:0;list-style:none}
button{font-family:inherit}
::selection{background:var(--accent-100);color:var(--ink-900)}

.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 20px}

/* ---------- 头部导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:1030;
  background:rgba(255,255,255,.94);
  backdrop-filter:saturate(150%) blur(8px);
  border-bottom:1px solid transparent;
  transition:box-shadow var(--t),border-color var(--t),background var(--t);
}
.site-header.is-stuck{border-bottom-color:var(--line);box-shadow:0 4px 18px rgba(14,42,30,.07)}
.nav-wrap{
  display:grid;grid-template-columns:1fr auto 1fr;align-items:center;
  gap:16px;min-height:74px;
}
.nav-side{display:flex;align-items:center;gap:6px}
.nav-side.right{justify-content:flex-end}
.nav-link-x{
  position:relative;display:inline-block;
  padding:10px 14px;color:var(--ink-700);font-size:15px;font-weight:500;
  border-radius:var(--radius-sm);
}
.nav-link-x::after{
  content:"";position:absolute;left:14px;right:14px;bottom:5px;height:2px;
  background:var(--brand-500);transform:scaleX(0);transform-origin:left;
  transition:transform var(--t);
}
.nav-link-x:hover{color:var(--brand-700);background:#f2f8f4}
.nav-link-x:hover::after{transform:scaleX(1)}
.nav-link-x.active{color:var(--brand-700);font-weight:700}
.nav-link-x.active::after{transform:scaleX(1)}
.brand{
  display:inline-flex;align-items:center;gap:10px;
  font-size:19px;font-weight:800;color:var(--ink-900);letter-spacing:.2px;
  white-space:nowrap;
}
.brand:hover{color:var(--brand-700)}
.brand-mark{
  width:32px;height:32px;flex:0 0 32px;border-radius:10px;
  background:linear-gradient(140deg,var(--brand-500),var(--accent-500));
  position:relative;overflow:hidden;
}
.brand-mark::before{
  content:"";position:absolute;left:6px;top:13px;width:20px;height:6px;
  border-bottom:2px solid #fff;border-radius:0 0 12px 12px;
  transform:rotate(-14deg);
}
.brand-mark::after{
  content:"";position:absolute;right:5px;top:6px;width:8px;height:8px;
  border-radius:50%;background:rgba(255,255,255,.85);
}
.btn-x{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 24px;border:1px solid transparent;border-radius:var(--radius-btn);
  font-size:15px;font-weight:600;line-height:1;cursor:pointer;
  transition:background var(--t),color var(--t),border-color var(--t),transform var(--t),box-shadow var(--t);
}
.btn-x.sm{height:40px;padding:0 18px;font-size:14px}
.btn-primary-x{background:var(--accent-500);color:#fff;box-shadow:var(--shadow-1)}
.btn-primary-x:hover{background:var(--accent-600);color:#fff;transform:translateY(-1px);box-shadow:var(--shadow-2)}
.btn-primary-x:active{transform:translateY(0);box-shadow:var(--shadow-1)}
.btn-outline-x{background:transparent;color:var(--brand-700);border-color:var(--brand-500)}
.btn-outline-x:hover{background:#eef8f2;color:var(--brand-900);transform:translateY(-1px);box-shadow:var(--shadow-1)}
.btn-ghost-x{background:transparent;color:#fff;border-color:rgba(255,255,255,.6)}
.btn-ghost-x:hover{background:rgba(255,255,255,.12);color:#fff;border-color:#fff}
.btn-block-x{width:100%}
.menu-btn{
  display:none;width:44px;height:44px;align-items:center;justify-content:center;
  border:1px solid var(--line);background:#fff;border-radius:var(--radius-btn);
  color:var(--ink-900);font-size:18px;cursor:pointer;
}
.mobile-panel{border-top:1px solid var(--line);background:#fff}
.mobile-panel .inner{padding:12px 20px 22px}
.mobile-panel a.m-link{
  display:flex;align-items:center;justify-content:space-between;
  padding:14px 4px;border-bottom:1px solid var(--line);
  color:var(--ink-900);font-size:16px;font-weight:600;
}
.mobile-panel a.m-link.active{color:var(--brand-700)}
.mobile-panel a.m-link i{color:var(--brand-300);font-size:13px}

/* ---------- Hero ---------- */
.hero{
  position:relative;overflow:hidden;
  background:linear-gradient(180deg,#f1f9f4 0%,#e9f4ed 100%);
  padding:64px 0 84px;
}
.hero::after{
  content:"";position:absolute;right:-140px;top:-120px;width:460px;height:460px;
  border-radius:50%;background:radial-gradient(circle,rgba(31,138,91,.16),rgba(31,138,91,0) 70%);
}
.hero-grid{
  position:relative;z-index:2;
  display:grid;grid-template-columns:1.02fr .98fr;gap:56px;align-items:center;
}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  padding:6px 14px;border-radius:999px;background:var(--accent-100);
  color:var(--accent-600);font-size:13px;font-weight:600;letter-spacing:.4px;
}
.eyebrow i{font-size:12px}
.hero h1{
  margin:18px 0 0;font-size:42px;line-height:1.25;letter-spacing:-.2px;
}
.hero h1 em{font-style:normal;color:var(--brand-500)}
.hero-sub{margin-top:18px;font-size:17px;color:var(--ink-700);max-width:620px}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:30px}
.trust-bar{
  margin-top:38px;display:grid;grid-template-columns:repeat(4,1fr);gap:14px;
  padding-top:26px;border-top:1px solid var(--line);
}
.trust-item{display:flex;gap:10px;align-items:flex-start}
.trust-item i{
  flex:0 0 34px;height:34px;width:34px;border-radius:10px;
  display:inline-flex;align-items:center;justify-content:center;
  background:#fff;color:var(--brand-500);border:1px solid var(--line);font-size:14px;
}
.trust-item b{display:block;color:var(--ink-900);font-size:14px;line-height:1.5}
.trust-item span{font-size:13px;color:var(--ink-500);line-height:1.6}
.hero-media{
  position:relative;border-radius:var(--radius-block);overflow:hidden;
  aspect-ratio:4/3.2;background:#dfeae3;box-shadow:var(--shadow-2);
}
.hero-media img{width:100%;height:100%;object-fit:cover}
.hero-media::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(200deg,rgba(14,42,30,.42) 0%,rgba(14,42,30,.06) 52%,rgba(244,118,27,.18) 100%);
}
.hero-badge{
  position:absolute;left:20px;bottom:20px;z-index:3;
  background:rgba(255,255,255,.95);border-radius:14px;padding:12px 16px;
  box-shadow:var(--shadow-2);display:flex;align-items:center;gap:12px;
}
.hero-badge i{color:var(--accent-500);font-size:18px}
.hero-badge b{display:block;font-size:14px;color:var(--ink-900);line-height:1.4}
.hero-badge span{font-size:12px;color:var(--ink-500)}

/* ---------- 通用板块 ---------- */
.section{padding:96px 0}
.section.tight{padding:76px 0}
.section-head{max-width:760px;margin-bottom:44px}
.section-head h2{margin-top:14px;font-size:30px;line-height:1.35}
.section-head p{margin-top:14px;color:var(--ink-500);font-size:16px}
.sub-line{width:52px;height:3px;background:var(--accent-500);border-radius:3px;margin-top:20px}

/* ---------- 痛点段 ---------- */
.problem-grid{display:grid;grid-template-columns:1.12fr .88fr;gap:48px;align-items:start}
.problem-list li{
  display:flex;gap:18px;padding:22px 0;border-bottom:1px solid var(--line);
}
.problem-list li:first-child{padding-top:0}
.problem-list .num{
  flex:0 0 40px;height:40px;border-radius:12px;background:#eef7f1;
  color:var(--brand-700);font-weight:700;font-size:15px;
  display:inline-flex;align-items:center;justify-content:center;
  font-variant-numeric:tabular-nums;
}
.problem-list h3{font-size:19px;margin-bottom:6px}
.problem-list p{font-size:15px;color:var(--ink-500)}
.side-card{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-block);
  padding:28px;box-shadow:var(--shadow-1);
}
.side-card img{border-radius:14px;aspect-ratio:16/10;object-fit:cover;background:#e3ede6;margin-bottom:20px}
.side-card h3{font-size:19px;margin-bottom:10px}
.side-card p{font-size:15px;color:var(--ink-500)}
.mini-metrics{margin-top:20px;display:grid;grid-template-columns:1fr 1fr;gap:12px}
.mini-metrics div{
  border:1px solid var(--line);border-radius:14px;padding:14px;background:#f8fbf9;
}
.mini-metrics b{display:block;font-size:22px;color:var(--brand-700);font-variant-numeric:tabular-nums}
.mini-metrics span{font-size:13px;color:var(--ink-500)}

/* ---------- 解决方案 ---------- */
.steps{position:relative;padding-left:70px}
.steps::before{
  content:"";position:absolute;left:23px;top:12px;bottom:12px;width:2px;
  background:linear-gradient(180deg,var(--brand-300),rgba(124,195,162,0));
}
.step{position:relative;padding-bottom:48px}
.step:last-child{padding-bottom:0}
.step .step-num{
  position:absolute;left:-70px;top:0;width:48px;height:48px;border-radius:14px;
  background:var(--brand-900);color:#fff;display:flex;align-items:center;justify-content:center;
  font-size:14px;font-weight:700;letter-spacing:.5px;font-variant-numeric:tabular-nums;
}
.step-inner{
  display:grid;grid-template-columns:1fr 1fr;gap:32px;align-items:center;
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-card);
  padding:26px;box-shadow:var(--shadow-1);transition:box-shadow var(--t),border-color var(--t),transform var(--t);
}
.step-inner:hover{box-shadow:var(--shadow-2);border-color:rgba(31,138,91,.35);transform:translateY(-2px)}
.step-inner.flip .step-media{order:-1}
.step-media{
  border-radius:14px;overflow:hidden;aspect-ratio:16/10;background:#e3ede6;
}
.step-media img{width:100%;height:100%;object-fit:cover;transition:transform var(--t)}
.step-inner:hover .step-media img{transform:scale(1.03)}
.step-text h3{font-size:19px;margin-bottom:10px}
.step-text p{font-size:15px;color:var(--ink-500)}
.tag-row{display:flex;flex-wrap:wrap;gap:8px;margin-top:14px}
.tag{
  display:inline-flex;align-items:center;padding:4px 12px;border-radius:999px;
  background:#eef7f1;color:var(--brand-700);font-size:12.5px;font-weight:600;
}

/* ---------- 成果带 ---------- */
.stats-band{
  position:relative;background:var(--brand-900);color:#eaf4ee;padding:96px 0 84px;
  border-radius:36px 36px 0 0;
}
.stats-band::before{
  content:"";position:absolute;left:0;right:0;top:-34px;height:70px;
  background:var(--brand-900);border-radius:50% 50% 0 0 / 34px 34px 0 0;
}
.stats-band .section-head h2,.stats-band h2{color:#fff}
.stats-band .section-head p{color:rgba(234,244,238,.72)}
.stats-band .sub-line{background:var(--accent-500)}
.stats-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px;margin-top:8px}
.stat{
  border-top:1px solid rgba(255,255,255,.18);padding-top:22px;
}
.stat b{
  display:block;font-size:38px;line-height:1.1;color:#fff;font-weight:800;
  font-variant-numeric:tabular-nums;letter-spacing:-.5px;
}
.stat b small{font-size:16px;font-weight:600;margin-left:4px;color:var(--accent-500)}
.stat span{display:block;margin-top:10px;font-size:14px;color:rgba(234,244,238,.7)}

/* ---------- 最新信息 CMS ---------- */
.news-grid{display:grid;grid-template-columns:1fr;gap:18px}
.news-feature{
  display:grid;grid-template-columns:1.05fr .95fr;gap:0;
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-card);
  overflow:hidden;box-shadow:var(--shadow-1);transition:box-shadow var(--t),border-color var(--t),transform var(--t);
}
.news-feature:hover{box-shadow:var(--shadow-2);border-color:rgba(31,138,91,.35);transform:translateY(-2px)}
.news-feature .cover{aspect-ratio:16/10;overflow:hidden;background:#e3ede6;order:2}
.news-feature .cover img{width:100%;height:100%;object-fit:cover;transition:transform var(--t)}
.news-feature:hover .cover img{transform:scale(1.03)}
.news-feature .body{padding:28px;display:flex;flex-direction:column;justify-content:center}
.news-row{
  display:grid;grid-template-columns:124px 1fr auto;gap:20px;align-items:center;
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-card);
  padding:16px;box-shadow:var(--shadow-1);transition:box-shadow var(--t),border-color var(--t),transform var(--t);
}
.news-row:hover{box-shadow:var(--shadow-2);border-color:rgba(31,138,91,.35);transform:translateY(-2px)}
.news-row .thumb{aspect-ratio:4/3;border-radius:12px;overflow:hidden;background:#e3ede6}
.news-row .thumb img{width:100%;height:100%;object-fit:cover;transition:transform var(--t)}
.news-row:hover .thumb img{transform:scale(1.04)}
.news-row h3{font-size:17px;line-height:1.5}
.news-row p{
  margin-top:6px;font-size:14px;color:var(--ink-500);
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.news-feature h3{font-size:22px;line-height:1.45}
.news-feature p{
  margin-top:12px;font-size:15px;color:var(--ink-500);
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.meta-row{display:flex;align-items:center;gap:12px;flex-wrap:wrap;margin-bottom:12px}
.meta-time{font-size:13px;color:var(--ink-500);font-variant-numeric:tabular-nums}
.go-link{
  display:inline-flex;align-items:center;gap:8px;margin-top:16px;
  font-size:14px;font-weight:600;color:var(--brand-700);
}
.go-link i{transition:transform var(--t)}
.go-link:hover i{transform:translateX(4px)}
.news-row .go-link{margin-top:8px}
.empty-state{
  background:#fff;border:1px dashed var(--line);border-radius:var(--radius-card);
  padding:44px 24px;text-align:center;
}
.empty-state i{font-size:26px;color:var(--brand-300)}
.empty-state p{margin-top:12px;color:var(--ink-500);font-size:15px}
.empty-state a{margin-top:16px;display:inline-flex}

/* ---------- 证言 ---------- */
.quotes{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;align-items:start}
.quote{
  position:relative;background:var(--surface);border:1px solid var(--line);
  border-radius:var(--radius-card);padding:30px 26px;box-shadow:var(--shadow-1);
}
.quote.deep{background:var(--brand-900);border-color:var(--brand-900);color:#eaf4ee;margin-top:-18px}
.quote.deep h3,.quote.deep .who b{color:#fff}
.quote.deep .who span{color:rgba(234,244,238,.7)}
.quote::before{
  content:"\201C";position:absolute;top:8px;right:22px;font-size:74px;line-height:1;
  color:rgba(31,138,91,.14);font-family:Georgia,serif;
}
.quote.deep::before{color:rgba(244,118,27,.35)}
.quote p{font-size:15.5px;line-height:1.9}
.who{margin-top:20px;padding-top:16px;border-top:1px solid var(--line)}
.quote.deep .who{border-top-color:rgba(255,255,255,.15)}
.who b{display:block;font-size:15px;color:var(--ink-900)}
.who span{font-size:13px;color:var(--ink-500)}

/* ---------- 登录表单 ---------- */
.login-wrap{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-block);
  box-shadow:var(--shadow-1);overflow:hidden;
  display:grid;grid-template-columns:1.05fr .95fr;
}
.login-form{padding:40px 36px}
.login-form h2{font-size:26px}
.login-form .hint{margin-top:12px;font-size:15px;color:var(--ink-500)}
.field{margin-top:20px}
.field label{display:block;font-size:14px;font-weight:600;color:var(--ink-900);margin-bottom:8px}
.field input{
  width:100%;height:48px;padding:0 14px;border:1px solid var(--line);border-radius:var(--radius-btn);
  background:#fbfdfc;color:var(--ink-900);font-size:15px;transition:border-color var(--t),box-shadow var(--t),background var(--t);
}
.field input::placeholder{color:#a4b2a9}
.field input:focus{
  outline:none;border-color:var(--brand-500);background:#fff;
  box-shadow:0 0 0 4px rgba(31,138,91,.14);
}
.form-actions{margin-top:26px}
.form-note{margin-top:14px;font-size:13px;color:var(--ink-500);line-height:1.7}
.login-aside{
  background:linear-gradient(160deg,#eef7f1,#f9fcf9);padding:40px 34px;
  border-left:1px solid var(--line);
}
.login-aside h3{font-size:18px;margin-bottom:18px}
.login-aside li{display:flex;gap:12px;padding:14px 0;border-bottom:1px solid var(--line)}
.login-aside li:last-child{border-bottom:none}
.login-aside i{color:var(--accent-500);margin-top:5px;font-size:14px}
.login-aside b{display:block;font-size:14.5px;color:var(--ink-900)}
.login-aside span{font-size:13.5px;color:var(--ink-500)}

/* ---------- FAQ ---------- */
.faq .accordion-item{
  background:transparent;border:none;border-top:1px solid var(--line);
}
.faq .accordion-item:last-child{border-bottom:1px solid var(--line)}
.faq .accordion-button{
  background:transparent;color:var(--ink-900);font-size:17px;font-weight:600;
  padding:20px 52px 20px 4px;min-height:56px;box-shadow:none;border-radius:0;
  transition:background var(--t),color var(--t);
}
.faq .accordion-button::after{display:none}
.faq .accordion-button::before{
  content:"+";position:absolute;right:6px;top:50%;transform:translateY(-50%);
  width:32px;height:32px;border-radius:50%;border:1px solid var(--line);
  display:flex;align-items:center;justify-content:center;
  font-size:18px;font-weight:400;color:var(--brand-700);
  transition:transform var(--t),background var(--t),color var(--t),border-color var(--t);
}
.faq .accordion-button:not(.collapsed){
  background:rgba(31,138,91,.06);color:var(--brand-700);box-shadow:none;
}
.faq .accordion-button:not(.collapsed)::before{
  content:"−";background:var(--brand-500);border-color:var(--brand-500);color:#fff;
}
.faq .accordion-button:hover{background:rgba(31,138,91,.045)}
.faq .accordion-body{
  padding:0 60px 24px 4px;font-size:15.5px;color:var(--ink-500);line-height:1.85;
}

/* ---------- CTA 带 ---------- */
.cta-band{
  background:var(--brand-900);padding:56px 0;position:relative;
  border-top:1px solid rgba(255,255,255,.12);
}
.cta-inner{
  display:flex;align-items:center;justify-content:space-between;gap:28px;flex-wrap:wrap;
}
.cta-inner h2{color:#fff;font-size:26px}
.cta-inner p{color:rgba(234,244,238,.72);margin-top:8px;font-size:15px}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--brand-900);color:rgba(234,244,238,.78);padding:64px 0 0}
.footer-grid{
  display:grid;grid-template-columns:1.5fr 1fr 1fr 1.1fr;gap:0;
}
.footer-col{padding:0 26px;border-left:1px solid rgba(255,255,255,.09)}
.footer-col:first-child{border-left:none;padding-left:0}
.footer-col h4{color:#fff;font-size:15px;margin-bottom:18px;letter-spacing:.3px}
.footer-brand{display:inline-flex;align-items:center;gap:10px;color:#fff;font-size:18px;font-weight:800}
.footer-brand:hover{color:#fff}
.footer-col p{font-size:14px;line-height:1.85;margin-top:14px;color:rgba(234,244,238,.68)}
.footer-col li{margin-bottom:12px}
.footer-col a{color:rgba(234,244,238,.78);font-size:14px}
.footer-col a:hover{color:var(--accent-500);text-decoration:underline;text-underline-offset:4px}
.footer-contact li{display:flex;gap:10px;align-items:flex-start;font-size:14px}
.footer-contact i{color:var(--brand-300);margin-top:5px}
.copyright{
  margin-top:52px;border-top:1px solid rgba(255,255,255,.09);
  padding:22px 0;display:flex;justify-content:space-between;gap:14px;flex-wrap:wrap;
  font-size:13px;color:rgba(234,244,238,.55);
}
.copyright a{color:rgba(234,244,238,.7)}
.copyright a:hover{color:var(--accent-500)}

/* ---------- 返回顶部 ---------- */
.to-top{
  position:fixed;right:20px;bottom:24px;width:46px;height:46px;border-radius:14px;
  border:1px solid var(--line);background:#fff;color:var(--brand-700);
  display:flex;align-items:center;justify-content:center;font-size:16px;cursor:pointer;
  box-shadow:var(--shadow-1);opacity:0;visibility:hidden;transform:translateY(10px);
  transition:opacity var(--t),transform var(--t),visibility var(--t),background var(--t),color var(--t);
  z-index:1040;
}
.to-top.show{opacity:1;visibility:visible;transform:translateY(0)}
.to-top:hover{background:var(--brand-500);color:#fff;border-color:var(--brand-500)}

/* ---------- 响应式 ---------- */
@media (max-width:1199.98px){
  .hero h1{font-size:36px}
  .section{padding:80px 0}
  .stats-grid{grid-template-columns:repeat(2,1fr);gap:32px}
  .footer-grid{grid-template-columns:1fr 1fr;row-gap:34px}
  .footer-col{padding:0 22px}
  .footer-col:nth-child(odd){border-left:none;padding-left:0}
}
@media (max-width:991.98px){
  .nav-wrap{grid-template-columns:auto 1fr auto;min-height:66px}
  .nav-side{display:none}
  .brand{justify-self:start;font-size:17px}
  .menu-btn{display:inline-flex;justify-self:end}
  .hero{padding:44px 0 60px}
  .hero-grid{grid-template-columns:1fr;gap:34px}
  .hero-media{aspect-ratio:16/10}
  .hero h1{font-size:32px}
  .trust-bar{grid-template-columns:1fr 1fr}
  .problem-grid{grid-template-columns:1fr}
  .steps{padding-left:64px}
  .step-inner{grid-template-columns:1fr}
  .step-inner.flip .step-media{order:0}
  .news-feature{grid-template-columns:1fr}
  .news-feature .cover{order:0;aspect-ratio:16/9}
  .quotes{grid-template-columns:1fr}
  .quote.deep{margin-top:0}
  .login-wrap{grid-template-columns:1fr}
  .login-aside{border-left:none;border-top:1px solid var(--line)}
  .section-head h2{font-size:25px}
}
@media (max-width:767.98px){
  .news-row{grid-template-columns:96px 1fr;gap:14px}
  .news-row .go-link{grid-column:2}
  .cta-inner h2{font-size:22px}
}
@media (max-width:575.98px){
  body{font-size:15.5px}
  .container{padding:0 16px}
  .hero h1{font-size:28px}
  .hero-sub{font-size:15.5px}
  .hero-actions .btn-x{width:100%}
  .trust-bar{grid-template-columns:1fr}
  .section{padding:56px 0}
  .section-head h2{font-size:22px}
  .steps{padding-left:0}
  .steps::before{display:none}
  .step .step-num{position:static;margin-bottom:14px}
  .step{padding-bottom:32px}
  .stats-grid{grid-template-columns:1fr;gap:22px}
  .stat b{font-size:32px}
  .login-form{padding:28px 20px}
  .login-aside{padding:28px 20px}
  .news-row{grid-template-columns:1fr}
  .news-row .thumb{aspect-ratio:16/9}
  .footer-grid{grid-template-columns:1fr}
  .footer-col{padding:0;border-left:none;border-top:1px solid rgba(255,255,255,.09);padding-top:24px}
  .footer-col:first-child{border-top:none;padding-top:0}
  .faq .accordion-button{font-size:16px;padding-right:46px}
  .faq .accordion-body{padding-right:8px}
  .to-top{right:14px;bottom:16px}
}

/* roulang page: article */
:root{
  --brand-900:#0d2a23;
  --brand-800:#11382e;
  --brand-700:#14453a;
  --brand-600:#1a6b55;
  --brand-500:#1f8a6c;
  --accent-500:#f2761b;
  --accent-600:#d9630d;
  --accent-100:#fff1e4;
  --bg:#f5faf8;
  --surface:#ffffff;
  --line:#dde9e4;
  --ink-900:#132420;
  --ink-700:#3b4d48;
  --ink-500:#70847e;
  --radius-sm:8px;
  --radius-btn:10px;
  --radius-card:16px;
  --radius-block:22px;
  --shadow-1:0 1px 2px rgba(13,42,35,.06), 0 8px 20px rgba(13,42,35,.05);
  --shadow-2:0 12px 30px rgba(13,42,35,.15);
  --t:180ms ease-out;
  --font:"HarmonyOS Sans","PingFang SC","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  font-family:var(--font);
  font-size:16px;
  line-height:1.8;
  color:var(--ink-700);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
  -moz-osx-font-smoothing:grayscale;
}
h1,h2,h3,h4,h5,h6{margin:0;color:var(--ink-900);font-weight:700;line-height:1.3}
p{margin:0}
ul,ol{margin:0;padding:0}
img{max-width:100%;display:block;border:0}
a{color:var(--brand-600);text-decoration:none;transition:color var(--t)}
a:hover{color:var(--accent-600)}
a:focus-visible,button:focus-visible,input:focus-visible{outline:2px solid var(--brand-500);outline-offset:2px}
button{font-family:inherit}
.container{
  width:100%;
  max-width:1200px;
  margin:0 auto;
  padding:0 20px;
}
.container-narrow{width:100%;max-width:800px;margin:0 auto;padding:0 20px}
@media (min-width:1400px){ .container{max-width:1320px} }

.skip-link{
  position:absolute;left:-9999px;top:0;background:var(--brand-700);color:#fff;
  padding:10px 18px;border-radius:0 0 var(--radius-btn) 0;z-index:2000;
}
.skip-link:focus{left:0;color:#fff}

/* ---------- header ---------- */
.site-header{
  position:sticky;top:0;z-index:1030;
  background:rgba(255,255,255,.95);
  backdrop-filter:saturate(160%) blur(10px);
  border-bottom:1px solid transparent;
  transition:box-shadow var(--t),border-color var(--t);
}
.site-header.is-scrolled{border-bottom-color:var(--line);box-shadow:0 8px 24px rgba(13,42,35,.07)}
.header-inner{
  display:flex;align-items:center;justify-content:space-between;
  gap:14px;min-height:78px;position:relative;
}
.nav-side{display:flex;align-items:center;gap:4px;flex:1 1 0;min-width:0}
.nav-side.right{justify-content:flex-end}
.nav-link-x{
  position:relative;display:inline-flex;align-items:center;
  padding:10px 13px;font-size:15px;font-weight:500;color:var(--ink-700);
  border-radius:var(--radius-sm);white-space:nowrap;
}
.nav-link-x::after{
  content:"";position:absolute;left:13px;right:13px;bottom:5px;height:2px;border-radius:2px;
  background:var(--accent-500);transform:scaleX(0);transform-origin:left;
  transition:transform var(--t);
}
.nav-link-x:hover{color:var(--brand-700)}
.nav-link-x:hover::after,.nav-link-x.active::after{transform:scaleX(1)}
.nav-link-x.active{color:var(--brand-700);font-weight:600}
.brand-center{
  position:absolute;left:50%;top:50%;transform:translate(-50%,-50%);
  display:flex;align-items:center;gap:10px;white-space:nowrap;
}
.brand-mark{
  width:26px;height:26px;flex:0 0 26px;border-radius:8px;
  background:linear-gradient(135deg,var(--brand-500),var(--accent-500));
  position:relative;
}
.brand-mark::after{
  content:"";position:absolute;inset:8px 6px;border-radius:2px;
  border-top:2.5px solid #fff;border-right:2.5px solid #fff;transform:rotate(45deg);
}
.brand-text{font-size:19px;font-weight:800;letter-spacing:.3px;color:var(--brand-900)}
.btn-nav{height:40px;padding:0 18px;font-size:14px}
.nav-toggle{
  display:none;width:44px;height:44px;border:1px solid var(--line);
  background:var(--surface);border-radius:var(--radius-btn);
  align-items:center;justify-content:center;flex-direction:column;gap:4px;cursor:pointer;
}
.nav-toggle span{display:block;width:18px;height:2px;background:var(--brand-700);border-radius:2px}
.mobile-nav{border-top:1px solid var(--line);background:var(--surface)}
.mobile-nav .container{padding-top:14px;padding-bottom:20px;display:flex;flex-direction:column;gap:2px}
.m-link{display:block;padding:12px 4px;font-size:15px;font-weight:500;color:var(--ink-700);border-bottom:1px solid var(--line)}
.m-link:hover{color:var(--brand-600)}
.m-cta{margin-top:14px;width:100%}
.m-note{margin-top:12px;font-size:13px;color:var(--ink-500)}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 24px;border-radius:var(--radius-btn);
  font-size:15px;font-weight:600;line-height:1;border:1px solid transparent;
  cursor:pointer;transition:all var(--t);text-decoration:none;
}
.btn-primary{background:var(--accent-500);border-color:var(--accent-500);color:#fff}
.btn-primary:hover{background:var(--accent-600);border-color:var(--accent-600);color:#fff;transform:translateY(-1px);box-shadow:var(--shadow-2)}
.btn-primary:active{transform:translateY(0);box-shadow:var(--shadow-1)}
.btn-outline{background:transparent;border-color:var(--brand-500);color:var(--brand-700)}
.btn-outline:hover{background:var(--brand-500);border-color:var(--brand-500);color:#fff;transform:translateY(-1px);box-shadow:var(--shadow-2)}
.btn-outline:active{transform:translateY(0);box-shadow:var(--shadow-1)}
.btn-accent{background:#fff;border-color:#fff;color:var(--brand-800)}
.btn-accent:hover{background:var(--accent-100);border-color:var(--accent-100);color:var(--brand-800);transform:translateY(-1px);box-shadow:var(--shadow-2)}

/* ---------- article hero ---------- */
.article-hero{
  position:relative;overflow:hidden;
  padding:44px 0 46px;
  background:linear-gradient(180deg,#eaf5f0 0%,#f5faf8 100%);
  border-bottom:1px solid var(--line);
}
.article-hero::after{
  content:"";position:absolute;right:-90px;top:-90px;width:340px;height:340px;border-radius:50%;
  background:radial-gradient(circle,rgba(242,118,27,.16),rgba(242,118,27,0) 70%);
  pointer-events:none;
}
.article-hero::before{
  content:"";position:absolute;left:-60px;bottom:-120px;width:260px;height:260px;border-radius:50%;
  border:1px solid rgba(31,138,108,.18);pointer-events:none;
}
.breadcrumb-x{
  position:relative;z-index:1;
  display:flex;flex-wrap:wrap;align-items:center;gap:8px;
  font-size:13px;color:var(--ink-500);margin-bottom:20px;
}
.breadcrumb-x a{color:var(--ink-500)}
.breadcrumb-x a:hover{color:var(--brand-600)}
.breadcrumb-x .sep{color:#b8cdc6}
.breadcrumb-x .current{color:var(--ink-700);max-width:100%;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.tag-chip{
  position:relative;z-index:1;
  display:inline-flex;align-items:center;gap:7px;
  font-size:13px;font-weight:600;color:var(--brand-700);
  background:#e2f1ea;border-radius:999px;padding:6px 14px;margin-bottom:16px;
}
.article-hero h1{
  position:relative;z-index:1;
  font-size:40px;line-height:1.28;letter-spacing:-.2px;max-width:900px;
}
.meta-bar{
  position:relative;z-index:1;
  display:flex;flex-wrap:wrap;align-items:center;gap:10px 24px;
  margin-top:22px;font-size:13.5px;color:var(--ink-500);
  font-variant-numeric:tabular-nums;
}
.meta-bar span{display:inline-flex;align-items:center;gap:7px}
.meta-bar i{color:var(--brand-500)}

/* ---------- article body ---------- */
.article-wrap{padding:60px 0 8px}
.article-body{
  max-width:760px;margin:0 auto;
  font-size:17px;line-height:1.85;color:var(--ink-700);
}
.article-body > *:first-child{margin-top:0}
.article-body h2{
  position:relative;font-size:26px;line-height:1.42;color:var(--ink-900);
  margin:1.9em 0 .75em;padding-left:15px;
}
.article-body h2::before{
  content:"";position:absolute;left:0;top:.28em;bottom:.28em;width:4px;border-radius:3px;
  background:var(--accent-500);
}
.article-body h3{font-size:19.5px;line-height:1.5;color:var(--ink-900);margin:1.6em 0 .6em}
.article-body p{margin:0 0 1.2em}
.article-body ul,.article-body ol{margin:0 0 1.2em;padding-left:1.35em}
.article-body li{margin-bottom:.5em}
.article-body ul li::marker{color:var(--brand-500)}
.article-body ol li::marker{color:var(--brand-500);font-weight:600}
.article-body blockquote{
  margin:1.6em 0;padding:18px 22px;border-left:3px solid var(--brand-500);
  background:#eef7f3;border-radius:0 12px 12px 0;color:var(--ink-700);
}
.article-body blockquote p:last-child{margin-bottom:0}
.article-body img{border-radius:14px;margin:1.4em 0;box-shadow:var(--shadow-1)}
.article-body a{color:var(--brand-600);text-decoration:underline;text-underline-offset:3px}
.article-body a:hover{color:var(--accent-600)}
.article-body table{width:100%;border-collapse:collapse;margin:1.4em 0;font-size:15px}
.article-body th,.article-body td{border:1px solid var(--line);padding:10px 14px;text-align:left}
.article-body th{background:#eff7f3;color:var(--ink-900);font-weight:600}
.article-body code{background:#eef4f2;padding:2px 6px;border-radius:6px;font-size:.92em}
.article-body pre{background:var(--brand-900);color:#dff0ea;padding:18px 20px;border-radius:14px;overflow:auto;font-size:14px}
.empty-state{
  max-width:760px;margin:0 auto;text-align:center;
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-block);
  padding:56px 28px;box-shadow:var(--shadow-1);
}
.empty-state i{font-size:34px;color:var(--brand-500)}
.empty-state p{margin:16px 0 22px;font-size:16px;color:var(--ink-700)}
.logo-guide{
  max-width:760px;margin:20px auto 0;background:var(--accent-100);
  border:1px solid #ffd9b8;border-radius:var(--radius-card);
  padding:18px 22px;font-size:15px;color:#8a4a12;display:flex;gap:12px;align-items:flex-start;
}
.logo-guide i{margin-top:5px;color:var(--accent-600)}

/* ---------- review block ---------- */
.review-block{padding:56px 0 24px}
.review-card{
  display:grid;grid-template-columns:1fr 1.05fr;gap:0;
  background:var(--surface);border:1px solid var(--line);
  border-radius:var(--radius-block);box-shadow:var(--shadow-1);overflow:hidden;
}
.review-media{background:#e6f1ec;min-height:260px}
.review-media img{width:100%;height:100%;object-fit:cover;aspect-ratio:4/3}
.review-body{padding:34px 34px 30px}
.review-body h2{font-size:23px;margin-bottom:16px}
.review-body ul{list-style:none;padding:0}
.review-body li{
  position:relative;padding-left:30px;margin-bottom:14px;font-size:15.5px;line-height:1.75;
}
.review-body li::before{
  content:"\f00c";font-family:"Font Awesome 6 Free";font-weight:900;
  position:absolute;left:0;top:1px;width:20px;height:20px;border-radius:50%;
  background:#e2f1ea;color:var(--brand-600);font-size:10px;
  display:flex;align-items:center;justify-content:center;
}
.review-body li:last-child{margin-bottom:0}

.article-actions{
  max-width:760px;margin:0 auto;padding:30px 0 0;
  display:flex;flex-wrap:wrap;gap:14px;
}

/* ---------- related ---------- */
.related-block{padding:56px 0 8px}
.related-head{font-size:24px;margin-bottom:22px}
.related-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:22px}
.related-card{
  display:flex;gap:18px;align-items:center;
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-card);
  padding:16px;box-shadow:var(--shadow-1);transition:all var(--t);
}
.related-card:hover{transform:translateY(-2px);border-color:rgba(31,138,108,.35);box-shadow:var(--shadow-2)}
.related-card .thumb{
  width:104px;height:78px;flex:0 0 104px;border-radius:12px;overflow:hidden;background:#e6f1ec;
}
.related-card .thumb img{width:100%;height:100%;object-fit:cover;transition:transform var(--t)}
.related-card:hover .thumb img{transform:scale(1.04)}
.related-card h3{font-size:16.5px;margin-bottom:6px}
.related-card p{font-size:13.5px;color:var(--ink-500);line-height:1.7}
.related-card span.more{display:inline-flex;align-items:center;gap:6px;font-size:13.5px;font-weight:600;color:var(--brand-600);margin-top:8px}

/* ---------- cta band ---------- */
.cta-band{
  position:relative;overflow:hidden;margin-top:72px;
  background:linear-gradient(120deg,var(--brand-900) 0%,var(--brand-700) 62%,#1b5a49 100%);
  padding:64px 0;
}
.cta-band::after{
  content:"";position:absolute;right:-70px;top:-70px;width:320px;height:320px;border-radius:50%;
  background:radial-gradient(circle,rgba(242,118,27,.28),rgba(242,118,27,0) 70%);
}
.cta-inner{
  position:relative;z-index:1;
  display:flex;align-items:center;justify-content:space-between;gap:32px;flex-wrap:wrap;
}
.cta-inner h2{color:#fff;font-size:29px;line-height:1.35;margin-bottom:12px}
.cta-inner p{color:rgba(233,245,240,.82);font-size:15.5px;max-width:620px}

/* ---------- footer ---------- */
.site-footer{background:var(--brand-900);color:rgba(229,242,237,.78);padding:66px 0 0;margin-top:0}
.footer-grid{
  display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:38px;
  padding-bottom:44px;
}
.footer-brand{display:inline-flex;align-items:center;gap:10px;margin-bottom:16px}
.footer-brand span:last-child{font-size:18px;font-weight:800;color:#fff}
.footer-brand .brand-mark{box-shadow:0 0 0 1px rgba(255,255,255,.12)}
.footer-col p{font-size:14px;line-height:1.85;color:rgba(229,242,237,.68);max-width:360px}
.footer-col h4{color:#fff;font-size:15.5px;margin-bottom:18px;font-weight:700}
.footer-col ul{list-style:none}
.footer-col ul li{margin-bottom:11px}
.footer-col ul li a{font-size:14px;color:rgba(229,242,237,.72);transition:all var(--t)}
.footer-col ul li a:hover{color:var(--accent-500);text-decoration:underline;text-underline-offset:3px}
.footer-contact li{display:flex;gap:10px;font-size:14px;color:rgba(229,242,237,.72);line-height:1.7}
.footer-contact i{color:var(--accent-500);margin-top:6px}
.copyright{
  border-top:1px solid rgba(255,255,255,.1);
  padding:20px 0 26px;display:flex;flex-wrap:wrap;gap:10px 24px;
  justify-content:space-between;font-size:13px;color:rgba(229,242,237,.55);
}

.to-top{
  position:fixed;right:22px;bottom:26px;width:46px;height:46px;border-radius:14px;
  background:var(--brand-700);color:#fff;border:0;display:none;
  align-items:center;justify-content:center;cursor:pointer;z-index:1040;
  box-shadow:var(--shadow-2);transition:all var(--t);
}
.to-top:hover{background:var(--accent-500)}
.to-top.show{display:flex}

/* ---------- responsive ---------- */
@media (max-width:1199px){
  .article-hero h1{font-size:35px}
}
@media (max-width:991px){
  .nav-side,.btn-nav{display:none}
  .nav-toggle{display:flex}
  .header-inner{min-height:70px}
  .brand-center{position:static;transform:none;margin-right:auto;margin-left:14px}
  .brand-text{font-size:17px}
  .article-hero h1{font-size:31px}
  .review-card{grid-template-columns:1fr}
  .review-media{min-height:200px}
  .review-media img{aspect-ratio:16/9}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
}
@media (max-width:767px){
  .article-hero{padding:32px 0 36px}
  .article-hero h1{font-size:28px}
  .article-wrap{padding:40px 0 0}
  .article-body{font-size:16.5px}
  .article-body h2{font-size:22px}
  .article-body h3{font-size:18px}
  .review-body{padding:26px 22px}
  .related-grid{grid-template-columns:1fr}
  .article-actions .btn{width:100%}
  .cta-band{padding:48px 0;margin-top:52px}
  .cta-inner h2{font-size:24px}
  .cta-inner .btn{width:100%}
  .footer-grid{grid-template-columns:1fr;gap:30px}
  .copyright{flex-direction:column}
}
@media (max-width:520px){
  .brand-text{font-size:15.5px;white-space:normal;line-height:1.3;max-width:150px}
  .brand-mark{width:22px;height:22px;flex:0 0 22px}
  .article-hero h1{font-size:25px}
  .meta-bar{gap:8px 16px}
  .breadcrumb-x .current{max-width:220px}
  .related-card{flex-direction:column;align-items:flex-start}
  .related-card .thumb{width:100%;height:150px;flex:none}
}

/* roulang page: category1 */
:root{
  --brand-900:#0b2a21;
  --brand-800:#0f3b2d;
  --brand-700:#12513d;
  --brand-500:#1c7a56;
  --brand-400:#36a077;
  --accent-500:#f0801a;
  --accent-600:#d96d0c;
  --accent-100:#fff2e3;
  --bg:#f4faf7;
  --surface:#ffffff;
  --line:#dbe8e2;
  --ink-900:#152420;
  --ink-700:#3c4d47;
  --ink-500:#6f8079;
  --radius-s:8px;
  --radius-m:10px;
  --radius-l:16px;
  --radius-xl:22px;
  --shadow-1:0 2px 10px rgba(11,42,33,.06);
  --shadow-2:0 12px 30px rgba(11,42,33,.14);
  --t:180ms ease-out;
  --maxw:1200px;
}

*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:"HarmonyOS Sans","PingFang SC","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:16px;
  line-height:1.8;
  color:var(--ink-900);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4{margin:0;line-height:1.3;font-weight:700;letter-spacing:.01em;}
p{margin:0 0 1.2em;}
p:last-child{margin-bottom:0;}
img{display:block;max-width:100%;height:auto;}
a{color:var(--brand-500);text-decoration:none;transition:color var(--t);}
a:visited{color:var(--brand-500);}
a:hover{color:var(--accent-500);}
button,input,textarea,select{font:inherit;color:inherit;}
ul,ol{margin:0;padding:0;}
:focus-visible{outline:2px solid var(--brand-500);outline-offset:2px;border-radius:4px;}

.container{width:100%;max-width:var(--maxw);margin:0 auto;padding-left:20px;padding-right:20px;}
@media (min-width:1400px){.container{max-width:1320px;}}

/* ===== 按钮 ===== */
.btn-x{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 24px;border-radius:var(--radius-m);
  font-size:15px;font-weight:600;border:1px solid transparent;
  cursor:pointer;transition:transform var(--t),background var(--t),color var(--t),box-shadow var(--t),border-color var(--t);
  white-space:nowrap;
}
.btn-primary-x{background:var(--accent-500);color:#fff;box-shadow:0 6px 16px rgba(240,128,26,.26);}
.btn-primary-x:visited{color:#fff;}
.btn-primary-x:hover{background:var(--accent-600);color:#fff;transform:translateY(-1px);box-shadow:var(--shadow-2);}
.btn-primary-x:active{transform:translateY(0);box-shadow:0 4px 10px rgba(240,128,26,.22);}
.btn-outline-x{background:transparent;border-color:var(--brand-500);color:var(--brand-700);}
.btn-outline-x:visited{color:var(--brand-700);}
.btn-outline-x:hover{background:rgba(28,122,86,.08);border-color:var(--brand-500);color:var(--brand-700);transform:translateY(-1px);box-shadow:var(--shadow-2);}
.btn-ghost-x{background:transparent;border-color:rgba(255,255,255,.55);color:#fff;}
.btn-ghost-x:visited{color:#fff;}
.btn-ghost-x:hover{background:rgba(255,255,255,.13);color:#fff;transform:translateY(-1px);}

/* ===== 头部导航 ===== */
.site-header{
  position:sticky;top:0;z-index:1030;
  background:rgba(255,255,255,.97);
  border-bottom:1px solid transparent;
  transition:box-shadow var(--t),border-color var(--t),background var(--t);
}
.site-header.is-scrolled{border-bottom-color:var(--line);box-shadow:0 6px 20px rgba(11,42,33,.07);background:#fff;}
.header-inner{display:flex;align-items:center;justify-content:space-between;gap:16px;height:76px;}
.nav-side{display:flex;align-items:center;gap:4px;flex:1 1 0;}
.nav-side.left{justify-content:flex-start;}
.nav-side.right{justify-content:flex-end;}
.nav-link-x{
  position:relative;padding:10px 14px;border-radius:var(--radius-m);
  font-size:15px;font-weight:600;color:var(--ink-700);
}
.nav-link-x:visited{color:var(--ink-700);}
.nav-link-x::after{
  content:"";position:absolute;left:14px;right:14px;bottom:4px;height:2px;
  background:var(--brand-500);border-radius:2px;transform:scaleX(0);transform-origin:center;
  transition:transform var(--t);
}
.nav-link-x:hover{color:var(--brand-700);}
.nav-link-x:hover::after,.nav-link-x.active::after{transform:scaleX(1);}
.nav-link-x.active{color:var(--brand-700);}
.brand{
  display:inline-flex;align-items:center;gap:10px;
  font-size:19px;font-weight:800;color:var(--ink-900);letter-spacing:.02em;
  padding:6px 4px;border-radius:var(--radius-m);
}
.brand:visited{color:var(--ink-900);}
.brand:hover{color:var(--brand-700);}
.brand-mark{
  position:relative;width:30px;height:30px;border-radius:9px;flex:none;
  background:linear-gradient(135deg,var(--brand-500),var(--accent-500));
}
.brand-mark::after{
  content:"";position:absolute;left:8px;right:7px;top:8px;bottom:8px;
  border-left:2.5px solid #fff;border-bottom:2.5px solid #fff;border-radius:2px;
  transform:skewX(-12deg);
}
.nav-toggle{
  display:none;width:46px;height:46px;border-radius:12px;
  border:1px solid var(--line);background:#fff;color:var(--brand-700);
  align-items:center;justify-content:center;font-size:18px;cursor:pointer;
  transition:background var(--t),border-color var(--t);
}
.nav-toggle:hover{background:#f1f8f4;border-color:var(--brand-400);}
.mobile-nav{border-top:1px solid var(--line);background:#fff;box-shadow:0 18px 32px rgba(11,42,33,.08);}
.mobile-nav .m-inner{display:flex;flex-direction:column;gap:6px;padding:14px 0 22px;}
.m-link{padding:13px 12px;border-radius:var(--radius-m);font-weight:600;color:var(--ink-700);}
.m-link:visited{color:var(--ink-700);}
.m-link:hover,.m-link.active{background:rgba(28,122,86,.08);color:var(--brand-700);}
.m-note{font-size:13px;color:var(--ink-500);padding:6px 12px 0;margin:0;}
.m-cta{margin-top:8px;}

/* ===== Hero ===== */
.page-hero{position:relative;isolation:isolate;overflow:hidden;background:var(--brand-900);color:#fff;padding:104px 0 86px;}
.page-hero .hero-bg{position:absolute;inset:0;background:url("/assets/images/backpic/back-1.webp") center/cover no-repeat;opacity:.42;z-index:-2;}
.page-hero .hero-veil{position:absolute;inset:0;background:linear-gradient(105deg,rgba(11,42,33,.95) 0%,rgba(11,42,33,.87) 46%,rgba(18,81,61,.6) 100%);z-index:-1;}
.hero-tag{
  display:inline-flex;align-items:center;gap:8px;margin-bottom:20px;
  font-size:13px;font-weight:600;color:#ffd6ab;
  background:rgba(240,128,26,.16);border:1px solid rgba(240,128,26,.36);
  padding:7px 16px;border-radius:999px;
}
.page-hero h1{font-size:clamp(28px,3.6vw,44px);line-height:1.25;color:#fff;margin-bottom:18px;max-width:900px;}
.hero-sub{font-size:17px;line-height:1.85;color:#c7ddd3;max-width:690px;margin:0 0 30px;}
.hero-cta{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:38px;}
.trust-bar{
  list-style:none;display:flex;flex-wrap:wrap;gap:18px 34px;
  padding:22px 0 0;border-top:1px solid rgba(255,255,255,.14);
}
.trust-bar li{display:flex;align-items:flex-start;gap:10px;font-size:14px;color:#b6cec3;min-width:186px;}
.trust-bar i{color:var(--accent-500);margin-top:4px;flex:none;}
.trust-bar strong{display:block;color:#fff;font-size:14px;font-weight:600;line-height:1.5;}
.trust-bar em{display:block;font-style:normal;font-size:13px;color:#9cb8ab;line-height:1.6;}

/* ===== 面包屑 ===== */
.crumb-bar{background:var(--surface);border-bottom:1px solid var(--line);}
.crumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;padding:14px 0;font-size:13.5px;color:var(--ink-500);}
.crumb a{color:var(--ink-500);}
.crumb a:hover{color:var(--brand-500);}
.crumb .sep{color:#c2d4cc;}
.crumb .current{color:var(--ink-900);font-weight:600;}

/* ===== 区块通用 ===== */
.section{padding:96px 0;}
.section-head{max-width:780px;margin-bottom:44px;}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;margin-bottom:16px;
  font-size:13px;font-weight:600;letter-spacing:.06em;
  color:var(--brand-500);background:rgba(28,122,86,.08);
  border:1px solid rgba(28,122,86,.16);padding:6px 14px;border-radius:999px;
}
.section-head h2{font-size:30px;margin-bottom:14px;}
.section-head p{color:var(--ink-700);font-size:16px;margin:0;}

/* ===== 行式条目列表 ===== */
.panel{
  background:var(--surface);border:1px solid var(--line);
  border-radius:var(--radius-xl);box-shadow:var(--shadow-1);
  padding:10px 24px;
}
.entry-row{
  display:grid;grid-template-columns:64px minmax(0,1fr) 208px;
  gap:26px;align-items:center;padding:26px 8px;
  border-radius:var(--radius-l);transition:background var(--t);
}
.entry-row:hover{background:#f7fcf9;}
.entry-num{
  font-size:22px;font-weight:800;line-height:1;color:var(--brand-400);
  font-variant-numeric:tabular-nums;letter-spacing:.02em;
  border-left:2px solid var(--accent-500);padding-left:14px;
}
.entry-body h3{font-size:19px;margin-bottom:8px;}
.entry-body h3 a{color:var(--ink-900);}
.entry-body h3 a:hover{color:var(--brand-500);}
.entry-body p{color:var(--ink-700);font-size:15px;line-height:1.8;margin:0 0 14px;}
.entry-meta{display:flex;flex-wrap:wrap;align-items:center;gap:10px;}
.tag{
  display:inline-flex;align-items:center;height:26px;padding:0 12px;
  border-radius:999px;font-size:12.5px;font-weight:600;
  background:rgba(28,122,86,.1);color:var(--brand-700);
}
.tag-soft{background:var(--accent-100);color:var(--accent-600);}
.entry-more{font-size:13.5px;font-weight:600;color:var(--brand-500);}
.entry-more i{font-size:11px;margin-left:4px;}
.entry-thumb{
  display:block;border-radius:var(--radius-l);overflow:hidden;
  aspect-ratio:16/10;background:#e6f0ea;
}
.entry-thumb img{width:100%;height:100%;object-fit:cover;transition:transform var(--t);}
.entry-row:hover .entry-thumb img{transform:scale(1.03);}
.list-divider{height:1px;background:linear-gradient(90deg,rgba(219,232,226,0),var(--line) 18%,var(--line) 82%,rgba(219,232,226,0));}

/* ===== 深色流程条带 ===== */
.flow{position:relative;background:var(--brand-900);color:#d6e7df;padding:118px 0 96px;}
.flow::before{
  content:"";position:absolute;top:0;left:0;right:0;height:56px;
  background:var(--bg);border-radius:0 0 50% 50%/0 0 100% 100%;
}
.flow .section-head h2{color:#fff;}
.flow .section-head p{color:#a9c4b8;}
.flow .eyebrow{color:#ffd6ab;background:rgba(240,128,26,.14);border-color:rgba(240,128,26,.32);}
.flow-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;}
.flow-card{
  background:rgba(255,255,255,.055);border:1px solid rgba(255,255,255,.13);
  border-radius:var(--radius-l);padding:30px 26px;
  transition:transform var(--t),background var(--t),border-color var(--t);
}
.flow-card:hover{transform:translateY(-3px);background:rgba(255,255,255,.09);border-color:rgba(240,128,26,.5);}
.flow-card .num{display:block;font-size:34px;font-weight:800;line-height:1;color:var(--accent-500);font-variant-numeric:tabular-nums;margin-bottom:16px;}
.flow-card h3{font-size:19px;color:#fff;margin-bottom:10px;}
.flow-card p{font-size:14.5px;line-height:1.85;color:#a9c4b8;margin:0;}
.flow-note{
  margin:34px 0 0;padding:16px 20px;font-size:14.5px;color:#c7ddd3;
  background:rgba(255,255,255,.05);border-left:3px solid var(--accent-500);
  border-radius:0 var(--radius-m) var(--radius-m) 0;
}

/* ===== FAQ ===== */
.faq-wrap{
  background:var(--surface);border:1px solid var(--line);
  border-radius:var(--radius-xl);box-shadow:var(--shadow-1);
  padding:6px 30px;
}
.faq .accordion-item{border:0;border-bottom:1px solid var(--line);background:transparent;}
.faq .accordion-item:last-child{border-bottom:0;}
.faq .accordion-button{
  background:transparent;box-shadow:none;border:0;
  font-size:17px;font-weight:600;color:var(--ink-900);
  padding:20px 48px 20px 0;min-height:56px;
  transition:background var(--t),color var(--t);
}
.faq .accordion-button:not(.collapsed){background:var(--accent-100);color:var(--brand-700);}
.faq .accordion-button::after{
  content:"+";background-image:none;
  width:26px;height:26px;line-height:1;font-size:22px;font-weight:400;
  color:var(--brand-500);display:flex;align-items:center;justify-content:center;
  transition:transform var(--t),color var(--t);
}
.faq .accordion-button:not(.collapsed)::after{transform:rotate(45deg);color:var(--accent-600);}
.faq .accordion-button:focus{box-shadow:none;outline:none;}
.faq .accordion-button:focus-visible{outline:2px solid var(--brand-500);outline-offset:-2px;}
.faq .accordion-body{padding:2px 48px 24px 0;font-size:15.5px;line-height:1.85;color:var(--ink-700);}

/* ===== CTA 带 ===== */
.cta-band{
  background:linear-gradient(120deg,var(--brand-800) 0%,var(--brand-700) 100%);
  color:#fff;padding:64px 0;border-top:1px solid rgba(255,255,255,.1);
}
.cta-inner{display:flex;align-items:center;justify-content:space-between;gap:32px;flex-wrap:wrap;}
.cta-inner h2{font-size:26px;color:#fff;margin-bottom:10px;}
.cta-inner p{margin:0;max-width:640px;font-size:15px;color:#bdd3c9;line-height:1.8;}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px;}

/* ===== 页脚 ===== */
.site-footer{background:var(--brand-900);color:#cfe0d8;padding:64px 0 0;}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.35fr;gap:40px;}
.footer-col h4{font-size:16px;color:#fff;margin-bottom:16px;}
.footer-col ul{list-style:none;display:flex;flex-direction:column;gap:10px;}
.footer-col ul a{color:#b4cdc2;font-size:14.5px;}
.footer-col ul a:visited{color:#b4cdc2;}
.footer-col ul a:hover{color:var(--accent-500);text-decoration:underline;}
.footer-brand{display:inline-flex;align-items:center;gap:10px;font-size:18px;font-weight:700;color:#fff;margin-bottom:14px;}
.footer-brand:visited{color:#fff;}
.footer-brand:hover{color:var(--accent-500);}
.footer-col > p{font-size:14.5px;line-height:1.85;color:#a6c1b6;margin:0;}
.footer-contact li{display:flex;gap:10px;align-items:flex-start;font-size:14px;color:#a6c1b6;line-height:1.7;}
.footer-contact i{color:var(--accent-500);margin-top:5px;flex:none;}
.copyright{
  margin-top:46px;border-top:1px solid rgba(255,255,255,.12);
  padding:20px 0;display:flex;justify-content:space-between;align-items:center;
  gap:12px;flex-wrap:wrap;font-size:13px;color:#93aea2;
}

/* ===== 返回顶部 ===== */
.to-top{
  position:fixed;right:22px;bottom:26px;z-index:1040;
  width:46px;height:46px;border-radius:50%;border:0;
  background:var(--brand-500);color:#fff;
  display:none;align-items:center;justify-content:center;
  box-shadow:var(--shadow-2);cursor:pointer;transition:background var(--t),transform var(--t);
}
.to-top:hover{background:var(--brand-700);transform:translateY(-2px);}
.to-top.show{display:flex;}

/* ===== 响应式 ===== */
@media (max-width:1199px){
  .section{padding:84px 0;}
  .flow{padding:104px 0 84px;}
  .entry-row{grid-template-columns:56px minmax(0,1fr) 180px;gap:20px;}
}
@media (max-width:991px){
  .header-inner{display:grid;grid-template-columns:46px 1fr 46px;align-items:center;justify-items:center;height:66px;}
  .nav-side{display:none;}
  .brand{grid-column:2;justify-self:center;font-size:17px;}
  .nav-toggle{grid-column:3;justify-self:end;display:inline-flex;}
  .flow-grid{grid-template-columns:1fr 1fr;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:34px;}
  .section-head h2{font-size:26px;}
}
@media (max-width:767px){
  body{font-size:15.5px;}
  .section{padding:56px 0;}
  .page-hero{padding:62px 0 54px;}
  .hero-sub{font-size:16px;}
  .hero-cta{flex-direction:column;}
  .btn-x{width:100%;height:52px;}
  .trust-bar{gap:16px 22px;}
  .trust-bar li{min-width:100%;}
  .flow{padding:84px 0 64px;}
  .flow-grid{grid-template-columns:1fr;}
  .panel{padding:6px 14px;border-radius:var(--radius-l);}
  .entry-row{
    grid-template-columns:44px minmax(0,1fr);
    grid-template-areas:"num body" "thumb thumb";
    gap:14px 16px;padding:22px 4px;
  }
  .entry-num{grid-area:num;font-size:19px;}
  .entry-body{grid-area:body;}
  .entry-thumb{grid-area:thumb;aspect-ratio:16/9;}
  .entry-body h3{font-size:17px;}
  .faq-wrap{padding:4px 18px;}
  .faq .accordion-button{font-size:15.5px;padding:18px 42px 18px 0;}
  .faq .accordion-body{padding:0 42px 20px 0;font-size:15px;}
  .cta-band{padding:48px 0;}
  .cta-inner h2{font-size:22px;}
  .cta-actions{width:100%;}
  .footer-grid{grid-template-columns:1fr;gap:30px;}
  .copyright{flex-direction:column;align-items:flex-start;}
  .to-top{right:16px;bottom:18px;}
}
@media (max-width:520px){
  .container{padding-left:16px;padding-right:16px;}
  .page-hero h1{font-size:26px;}
  .section-head h2{font-size:22px;}
}

/* roulang page: category2 */
:root{
  --brand-900:#0c2a21;
  --brand-800:#10392c;
  --brand-700:#14513c;
  --brand-600:#1a6a4b;
  --brand-500:#1f7a55;
  --brand-100:#e4f2ea;
  --brand-50:#f0f7f3;
  --accent-500:#ef7a1c;
  --accent-600:#d96812;
  --accent-100:#fdeedd;
  --bg:#f5f8f6;
  --surface:#ffffff;
  --line:#dde6e0;
  --ink-900:#13211b;
  --ink-700:#3b4b44;
  --ink-500:#6c7b75;
  --r-sm:8px;
  --r-btn:10px;
  --r-card:16px;
  --r-lg:22px;
  --shadow-1:0 2px 10px rgba(17,46,36,.06);
  --shadow-2:0 14px 32px rgba(17,46,36,.14);
  --t:180ms ease-out;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  background:var(--bg);
  color:var(--ink-700);
  font-family:"HarmonyOS Sans SC","PingFang SC","Microsoft YaHei","Noto Sans SC",-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;
  font-size:16px;
  line-height:1.8;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border:0}
a{color:var(--brand-600);text-decoration:none;transition:color var(--t)}
a:hover{color:var(--accent-600)}
a:visited{color:var(--brand-600)}
a:focus-visible,button:focus-visible,input:focus-visible{outline:2px solid var(--brand-500);outline-offset:2px}
h1,h2,h3,h4{margin:0;color:var(--ink-900);line-height:1.3;font-weight:700}
p{margin:0 0 1.2em}
p:last-child{margin-bottom:0}
ul,ol{margin:0;padding:0;list-style:none}
button{font-family:inherit}
.container{width:100%;max-width:1200px;margin:0 auto;padding-left:20px;padding-right:20px}
@media (min-width:1400px){.container{max-width:1320px}}
.section{padding:96px 0}
.section-sm{padding:72px 0}
@media (max-width:991px){.section{padding:72px 0}.section-sm{padding:56px 0}}
@media (max-width:575px){.section{padding:56px 0}.section-sm{padding:44px 0}}

/* ============ header ============ */
.site-header{
  position:sticky;top:0;z-index:1030;
  background:rgba(255,255,255,.95);
  backdrop-filter:saturate(160%) blur(10px);
  border-bottom:1px solid var(--line);
  transition:box-shadow var(--t);
}
.site-header.is-scrolled{box-shadow:0 8px 24px rgba(17,46,36,.09)}
.nav-wrap{
  display:grid;
  grid-template-columns:1fr auto 1fr;
  align-items:center;
  gap:16px;
  min-height:76px;
}
.nav-side{display:flex;align-items:center;gap:4px}
.nav-side.left{justify-content:flex-start}
.nav-side.right{justify-content:flex-end}
.nav-link-x{
  position:relative;
  padding:10px 12px;
  font-size:15px;
  font-weight:500;
  color:var(--ink-700);
  border-radius:var(--r-sm);
  white-space:nowrap;
}
.nav-link-x::after{
  content:"";
  position:absolute;
  left:12px;right:12px;bottom:3px;
  height:2px;border-radius:2px;
  background:var(--brand-500);
  transform:scaleX(0);
  transform-origin:left;
  transition:transform var(--t);
}
.nav-link-x:hover{color:var(--brand-700)}
.nav-link-x:hover::after{transform:scaleX(1)}
.nav-link-x.active{color:var(--brand-700);font-weight:600}
.nav-link-x.active::after{transform:scaleX(1)}
.brand{
  display:inline-flex;align-items:center;gap:10px;
  font-size:19px;font-weight:800;letter-spacing:.5px;
  color:var(--brand-900);white-space:nowrap;
}
.brand:hover{color:var(--brand-900)}
.brand-mark{
  position:relative;
  width:28px;height:28px;border-radius:9px;
  background:linear-gradient(135deg,var(--brand-600) 0%,var(--brand-500) 55%,var(--accent-500) 100%);
  flex:0 0 auto;
}
.brand-mark::after{
  content:"";
  position:absolute;left:9px;top:7px;
  width:9px;height:13px;
  border-right:2px solid #fff;
  border-bottom:2px solid #fff;
  transform:rotate(-38deg) skewX(-8deg);
}
.nav-cta{margin-left:10px}
.menu-toggle{
  display:none;
  width:46px;height:46px;border-radius:12px;
  border:1px solid var(--line);
  background:#fff;cursor:pointer;
  align-items:center;justify-content:center;
  flex-direction:column;gap:5px;
}
.menu-toggle span{display:block;width:20px;height:2px;border-radius:2px;background:var(--ink-900);transition:transform var(--t),opacity var(--t)}
.menu-toggle.open span:nth-child(1){transform:translateY(7px) rotate(45deg)}
.menu-toggle.open span:nth-child(2){opacity:0}
.menu-toggle.open span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}
.mobile-panel{
  display:none;
  border-top:1px solid var(--line);
  background:#fff;
  padding:14px 0 20px;
}
.mobile-panel.open{display:block}
.mobile-panel a{
  display:block;
  padding:14px 4px;
  font-size:16px;
  font-weight:500;
  color:var(--ink-700);
  border-bottom:1px solid var(--line);
}
.mobile-panel a.active{color:var(--brand-700);font-weight:700}
.mobile-panel .btn-x{margin-top:16px}
@media (max-width:991px){
  .nav-wrap{grid-template-columns:46px 1fr 46px;min-height:68px}
  .nav-side{display:none}
  .brand{justify-content:center;font-size:17px}
  .menu-toggle{display:flex}
}

/* ============ buttons ============ */
.btn-x{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 24px;
  border-radius:var(--r-btn);
  border:1px solid transparent;
  font-size:15px;font-weight:600;line-height:1;
  cursor:pointer;
  transition:background var(--t),color var(--t),transform var(--t),box-shadow var(--t),border-color var(--t);
}
.btn-main{background:var(--accent-500);color:#fff}
.btn-main:hover{background:var(--accent-600);color:#fff;transform:translateY(-1px);box-shadow:var(--shadow-2)}
.btn-main:active{transform:translateY(0);box-shadow:var(--shadow-1)}
.btn-line{background:#fff;border-color:var(--brand-600);color:var(--brand-700)}
.btn-line:hover{background:var(--brand-100);color:var(--brand-700);transform:translateY(-1px);box-shadow:var(--shadow-1)}
.btn-ghost{background:transparent;border-color:rgba(255,255,255,.55);color:#fff}
.btn-ghost:hover{background:rgba(255,255,255,.14);color:#fff;transform:translateY(-1px)}
.btn-sm{height:42px;padding:0 18px;font-size:14px}
.btn-block{width:100%}
@media (max-width:575px){
  .btn-x{height:52px}
  .hero-actions .btn-x{width:100%}
}

/* ============ hero ============ */
.page-hero{position:relative;overflow:hidden;background:var(--brand-900);color:#fff;padding:58px 0 92px}
.hero-bg{
  position:absolute;inset:0;
  background-image:url('/assets/images/backpic/back-2.png');
  background-size:cover;background-position:center;
  opacity:.42;
}
.page-hero::after{
  content:"";
  position:absolute;inset:0;
  background:linear-gradient(100deg,rgba(11,38,30,.95) 0%,rgba(11,38,30,.82) 46%,rgba(11,38,30,.52) 100%);
}
.hero-inner{position:relative;z-index:2;max-width:800px}
.crumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13.5px;color:rgba(255,255,255,.7);margin-bottom:22px}
.crumb a{color:rgba(255,255,255,.82)}
.crumb a:hover{color:#fff}
.crumb .sep{color:rgba(255,255,255,.4)}
.crumb .current{color:#fff;font-weight:600}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  padding:6px 14px;border-radius:999px;
  background:rgba(255,255,255,.12);
  border:1px solid rgba(255,255,255,.24);
  font-size:13px;font-weight:600;letter-spacing:.4px;
  color:#e9f5ee;margin-bottom:20px;
}
.eyebrow i{color:var(--accent-500)}
.page-hero h1{
  color:#fff;
  font-size:clamp(30px,4.4vw,44px);
  font-weight:800;
  line-height:1.25;
  letter-spacing:-.5px;
}
.hero-lead{
  margin-top:18px;
  font-size:17px;
  line-height:1.85;
  color:rgba(255,255,255,.86);
  max-width:660px;
}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:30px}
.hero-facts{
  display:flex;flex-wrap:wrap;gap:14px 30px;
  margin-top:36px;padding-top:26px;
  border-top:1px solid rgba(255,255,255,.18);
}
.hero-facts li{display:flex;align-items:center;gap:9px;font-size:14px;color:rgba(255,255,255,.86)}
.hero-facts i{color:var(--accent-500);font-size:15px}
@media (max-width:991px){
  .page-hero{padding:44px 0 78px}
  .hero-facts{gap:12px 22px}
}
@media (max-width:575px){
  .page-hero{padding:36px 0 70px}
  .hero-lead{font-size:15.5px}
}

/* ============ filter bar ============ */
.filter-bar-wrap{margin-top:-46px;position:relative;z-index:5}
.filter-bar{
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--r-card);
  padding:16px 20px;
  display:flex;flex-wrap:wrap;gap:14px;
  align-items:center;justify-content:space-between;
  box-shadow:0 12px 30px rgba(17,46,36,.10);
}
.chips{display:flex;flex-wrap:wrap;gap:8px}
.chip{
  padding:9px 17px;
  border-radius:999px;
  border:1px solid var(--line);
  background:#fff;
  color:var(--ink-700);
  font-size:14px;font-weight:500;
  cursor:pointer;
  transition:all var(--t);
}
.chip:hover{border-color:var(--brand-500);color:var(--brand-700)}
.chip.active{background:var(--brand-700);border-color:var(--brand-700);color:#fff}
.search-box{
  position:relative;
  flex:1 1 250px;
  max-width:320px;
}
.search-box i{
  position:absolute;left:15px;top:50%;transform:translateY(-50%);
  color:var(--ink-500);font-size:14px;pointer-events:none;
}
.search-box input{
  width:100%;height:46px;
  padding:0 16px 0 40px;
  border:1px solid var(--line);
  border-radius:var(--r-btn);
  background:#fff;
  color:var(--ink-900);
  font-size:14.5px;
  transition:border-color var(--t),box-shadow var(--t);
}
.search-box input::placeholder{color:var(--ink-500)}
.search-box input:focus{outline:none;border-color:var(--brand-500);box-shadow:0 0 0 4px rgba(31,122,85,.13)}
@media (max-width:767px){
  .filter-bar{padding:14px 16px}
  .search-box{max-width:none;flex:1 1 100%}
}

/* ============ section head ============ */
.sec-head{max-width:720px;margin-bottom:44px}
.sec-head.mid{margin-left:auto;margin-right:auto;text-align:center}
.sec-tag{
  display:inline-block;
  font-size:13px;font-weight:700;letter-spacing:1px;
  color:var(--accent-600);
  margin-bottom:14px;
}
.sec-head h2{font-size:clamp(26px,3vw,32px);font-weight:800;letter-spacing:-.4px}
.sec-head p{margin-top:14px;font-size:16px;color:var(--ink-500)}
@media (max-width:991px){.sec-head{margin-bottom:32px}}

/* ============ topic grid ============ */
.topic-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:26px;align-items:start}
.topic-card{
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--r-card);
  overflow:hidden;
  box-shadow:var(--shadow-1);
  display:flex;flex-direction:column;
  transition:transform var(--t),box-shadow var(--t),border-color var(--t);
}
.topic-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-2);border-color:rgba(31,122,85,.34)}
.topic-thumb{position:relative;background:#e7efe9;aspect-ratio:16/9;overflow:hidden}
.topic-card.tall .topic-thumb{aspect-ratio:4/3}
.topic-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .35s ease-out}
.topic-card:hover .topic-thumb img{transform:scale(1.03)}
.topic-thumb .badge-x{
  position:absolute;left:14px;top:14px;
  padding:5px 12px;border-radius:999px;
  background:rgba(12,42,33,.82);
  color:#fff;font-size:12.5px;font-weight:600;
  backdrop-filter:blur(4px);
}
.topic-body{padding:24px 26px 26px;display:flex;flex-direction:column;flex:1}
.tag-row{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:14px}
.tag-x{
  display:inline-block;
  padding:4px 11px;border-radius:999px;
  background:var(--brand-100);
  color:var(--brand-700);
  font-size:12.5px;font-weight:600;
}
.tag-x.warm{background:var(--accent-100);color:var(--accent-600)}
.topic-body h3{font-size:19px;line-height:1.45;font-weight:700}
.topic-body h3 a{color:var(--ink-900)}
.topic-body h3 a:hover{color:var(--brand-600)}
.topic-body p{
  margin-top:12px;
  font-size:15px;
  color:var(--ink-500);
  line-height:1.8;
  display:-webkit-box;
  -webkit-line-clamp:2;
  -webkit-box-orient:vertical;
  overflow:hidden;
}
.topic-meta{
  margin-top:auto;padding-top:20px;
  display:flex;align-items:center;justify-content:space-between;
  gap:12px;font-size:13.5px;color:var(--ink-500);
  border-top:1px solid var(--line);margin-top:22px;
}
.topic-meta .more{display:inline-flex;align-items:center;gap:6px;font-weight:600;color:var(--brand-600)}
.topic-meta .more:hover{color:var(--accent-600)}
.topic-meta .more i{transition:transform var(--t)}
.topic-meta .more:hover i{transform:translateX(3px)}
.empty-state{
  display:none;
  padding:56px 24px;
  text-align:center;
  background:#fff;
  border:1px dashed var(--line);
  border-radius:var(--r-card);
}
.empty-state i{font-size:28px;color:var(--brand-500)}
.empty-state p{margin:14px 0 18px;color:var(--ink-500);font-size:15px}
@media (max-width:767px){
  .topic-grid{grid-template-columns:1fr;gap:20px}
  .topic-card.tall .topic-thumb{aspect-ratio:16/9}
  .topic-body{padding:20px 20px 22px}
}

/* ============ split block ============ */
.split{display:grid;grid-template-columns:1.05fr .95fr;gap:56px;align-items:center}
.num-list{position:relative;padding-left:26px;border-left:2px solid var(--line)}
.num-list li{position:relative;padding:0 0 30px 10px}
.num-list li:last-child{padding-bottom:0}
.num-list li::before{
  content:"";
  position:absolute;left:-33px;top:8px;
  width:12px;height:12px;border-radius:50%;
  background:#fff;border:2px solid var(--brand-500);
}
.num-list .num{
  display:block;
  font-size:13px;font-weight:800;letter-spacing:1px;
  color:var(--accent-600);
  font-variant-numeric:tabular-nums;
}
.num-list h3{font-size:18.5px;margin-top:6px}
.num-list p{margin-top:8px;font-size:15px;color:var(--ink-500)}
.media-frame{
  position:relative;
  border-radius:var(--r-lg);
  overflow:hidden;
  background:#e7efe9;
  box-shadow:var(--shadow-1);
  aspect-ratio:4/3;
}
.media-frame img{width:100%;height:100%;object-fit:cover}
.media-frame figcaption{
  position:absolute;left:0;right:0;bottom:0;
  padding:16px 20px;
  font-size:13.5px;
  color:#fff;
  background:linear-gradient(0deg,rgba(11,38,30,.86),rgba(11,38,30,0));
}
@media (max-width:991px){.split{grid-template-columns:1fr;gap:34px}}

/* ============ scenario list ============ */
.scene-wrap{display:grid;grid-template-columns:.9fr 1.1fr;gap:52px;align-items:center}
.scene-list{display:grid;gap:16px}
.scene-item{
  display:flex;gap:16px;
  padding:20px 22px;
  background:#fff;
  border:1px solid var(--line);
  border-radius:var(--r-card);
  box-shadow:var(--shadow-1);
  transition:transform var(--t),box-shadow var(--t),border-color var(--t);
}
.scene-item:hover{transform:translateY(-2px);box-shadow:var(--shadow-2);border-color:rgba(31,122,85,.34)}
.scene-item .ico{
  flex:0 0 auto;
  width:44px;height:44px;border-radius:12px;
  display:flex;align-items:center;justify-content:center;
  background:var(--brand-100);color:var(--brand-700);font-size:17px;
}
.scene-item h3{font-size:17px}
.scene-item p{margin-top:7px;font-size:14.5px;color:var(--ink-500)}
@media (max-width:991px){.scene-wrap{grid-template-columns:1fr;gap:32px}}

/* ============ steps ============ */
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:26px;counter-reset:step}
.step{position:relative;padding-top:26px;border-top:2px solid var(--brand-100)}
.step .idx{
  position:absolute;top:-16px;left:0;
  width:30px;height:30px;border-radius:10px;
  display:flex;align-items:center;justify-content:center;
  background:var(--brand-700);color:#fff;
  font-size:14px;font-weight:700;
  font-variant-numeric:tabular-nums;
}
.step h3{font-size:17px}
.step p{margin-top:9px;font-size:14.5px;color:var(--ink-500)}
@media (max-width:991px){.steps{grid-template-columns:repeat(2,1fr);gap:32px 24px}}
@media (max-width:575px){.steps{grid-template-columns:1fr;gap:28px}}

/* ============ stat band ============ */
.stat-band{
  position:relative;overflow:hidden;
  background:var(--brand-900);
  color:#fff;
  border-radius:var(--r-lg);
  padding:52px 44px;
}
.stat-band::before{
  content:"";
  position:absolute;right:-90px;top:-90px;
  width:280px;height:280px;border-radius:50%;
  background:radial-gradient(circle,rgba(239,122,28,.30),rgba(239,122,28,0) 70%);
}
.stat-head{position:relative;z-index:2;margin-bottom:34px;max-width:640px}
.stat-head h2{color:#fff;font-size:clamp(24px,2.6vw,30px);font-weight:800}
.stat-head p{margin-top:12px;color:rgba(255,255,255,.76);font-size:15px}
.stat-grid{position:relative;z-index:2;display:grid;grid-template-columns:repeat(4,1fr);gap:24px}
.stat-item{padding-top:20px;border-top:1px solid rgba(255,255,255,.2)}
.stat-num{
  font-size:clamp(28px,3.4vw,38px);
  font-weight:800;
  color:#fff;
  font-variant-numeric:tabular-nums;
  letter-spacing:.5px;
}
.stat-num small{font-size:15px;font-weight:600;color:var(--accent-500);margin-left:4px}
.stat-item span{display:block;margin-top:8px;font-size:14px;color:rgba(255,255,255,.72)}
@media (max-width:991px){
  .stat-band{padding:38px 24px}
  .stat-grid{grid-template-columns:repeat(2,1fr);gap:22px}
}

/* ============ faq ============ */
.faq-x{max-width:860px;margin:0 auto}
.faq-x .accordion-item{
  background:transparent;
  border:0;
  border-bottom:1px solid var(--line);
  border-radius:0;
}
.faq-x .accordion-item:first-child{border-top:1px solid var(--line)}
.faq-x .accordion-button{
  position:relative;
  background:transparent;
  box-shadow:none;
  color:var(--ink-900);
  font-size:17px;font-weight:600;
  padding:22px 54px 22px 0;
  min-height:56px;
  border-radius:10px;
  transition:background var(--t),color var(--t);
}
.faq-x .accordion-button:not(.collapsed){
  background:var(--brand-50);
  color:var(--brand-700);
  padding-left:18px;
  box-shadow:none;
}
.faq-x .accordion-button::after{display:none}
.faq-x .accordion-button::before{
  content:"+";
  position:absolute;right:18px;top:50%;
  transform:translateY(-50%);
  font-size:22px;line-height:1;font-weight:400;
  color:var(--brand-500);
  transition:transform var(--t),color var(--t);
}
.faq-x .accordion-button:not(.collapsed)::before{transform:translateY(-50%) rotate(45deg);color:var(--accent-500)}
.faq-x .accordion-body{
  padding:4px 20px 26px 18px;
  font-size:15.5px;
  color:var(--ink-500);
  line-height:1.85;
}
.faq-x .accordion-button:focus{box-shadow:none;outline:none}
.faq-x .accordion-button:focus-visible{outline:2px solid var(--brand-500);outline-offset:-2px}

/* ============ cta band ============ */
.cta-band{
  position:relative;overflow:hidden;
  background:var(--brand-800);
  color:#fff;
  border-radius:var(--r-lg);
  padding:54px 48px;
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:26px;
}
.cta-band::before{
  content:"";
  position:absolute;left:-60px;bottom:-120px;
  width:320px;height:320px;border-radius:50%;
  background:radial-gradient(circle,rgba(31,122,85,.55),rgba(31,122,85,0) 70%);
}
.cta-band .cta-copy{position:relative;z-index:2;max-width:640px}
.cta-band h2{color:#fff;font-size:clamp(22px,2.6vw,29px);font-weight:800}
.cta-band p{margin-top:12px;color:rgba(255,255,255,.78);font-size:15.5px}
.cta-band .cta-actions{position:relative;z-index:2;display:flex;flex-wrap:wrap;gap:14px}
@media (max-width:767px){
  .cta-band{padding:38px 24px}
  .cta-actions{width:100%}
  .cta-actions .btn-x{width:100%}
}

/* ============ footer ============ */
.site-footer{
  background:var(--brand-900);
  color:rgba(255,255,255,.72);
  padding:72px 0 30px;
  margin-top:96px;
}
.footer-grid{
  display:grid;
  grid-template-columns:1.6fr 1fr 1fr 1.3fr;
  gap:44px;
  padding-bottom:44px;
}
.footer-col h4{
  color:#fff;font-size:15.5px;font-weight:700;
  margin-bottom:18px;
}
.footer-col p{font-size:14px;line-height:1.85;color:rgba(255,255,255,.66);max-width:340px}
.footer-brand{
  display:inline-flex;align-items:center;gap:10px;
  font-size:18px;font-weight:800;color:#fff;
  margin-bottom:16px;
}
.footer-brand:hover{color:#fff}
.footer-col ul li{margin-bottom:11px}
.footer-col ul li a{
  font-size:14px;color:rgba(255,255,255,.72);
  border-bottom:1px solid transparent;
  padding-bottom:2px;
}
.footer-col ul li a:hover{color:var(--accent-500);border-bottom-color:var(--accent-500)}
.footer-contact li{
  display:flex;gap:10px;align-items:flex-start;
  font-size:13.8px;color:rgba(255,255,255,.68);line-height:1.7;
}
.footer-contact i{color:var(--accent-500);margin-top:5px;font-size:13px}
.copyright{
  display:flex;flex-wrap:wrap;gap:10px 24px;
  justify-content:space-between;
  padding-top:24px;
  border-top:1px solid rgba(255,255,255,.14);
  font-size:13px;
  color:rgba(255,255,255,.55);
}
@media (max-width:991px){
  .footer-grid{grid-template-columns:1fr 1fr;gap:34px}
  .site-footer{padding:56px 0 26px;margin-top:72px}
}
@media (max-width:575px){
  .footer-grid{grid-template-columns:1fr;gap:30px}
  .copyright{flex-direction:column;gap:8px}
}

/* ============ back to top ============ */
.to-top{
  position:fixed;right:22px;bottom:26px;z-index:1040;
  width:46px;height:46px;border-radius:14px;
  border:1px solid var(--line);
  background:#fff;color:var(--brand-700);
  display:flex;align-items:center;justify-content:center;
  box-shadow:var(--shadow-1);
  cursor:pointer;
  opacity:0;visibility:hidden;
  transform:translateY(8px);
  transition:opacity var(--t),transform var(--t),visibility var(--t),box-shadow var(--t);
}
.to-top.show{opacity:1;visibility:visible;transform:translateY(0)}
.to-top:hover{box-shadow:var(--shadow-2);color:var(--accent-600)}
@media (max-width:575px){.to-top{right:14px;bottom:18px;width:44px;height:44px}}