/* roulang page: index */
:root{
  --brand-900:#0C2E29;
  --brand-700:#10403A;
  --brand-500:#1C6B5F;
  --accent:#A8E63A;
  --sand:#EFE9DF;
  --mist:#D8E3DF;
  --bg:#F8F6F2;
  --card:#FFFFFF;
  --ink:#101613;
  --ink-2:#566058;
  --ink-3:#8A948D;
  --pos:#2E9E6B;
  --neg:#C2543C;
  --radius-card:14px;
  --radius-btn:10px;
  --radius-img:16px;
  --radius-input:10px;
  --shadow-1:0 1px 2px rgba(16,22,19,.05);
  --shadow-2:0 12px 32px -16px rgba(16,22,19,.18);
  --container:1200px;
  --font-sans:-apple-system,"PingFang SC","HarmonyOS Sans","Noto Sans SC","Microsoft YaHei",sans-serif;
  --font-mono:"JetBrains Mono",ui-monospace,SFMono-Regular,Menlo,monospace;
}
*,
*::before,
*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  background:var(--bg);
  color:var(--ink);
  font-family:var(--font-sans);
  font-size:16px;
  line-height:1.75;
  font-weight:400;
  overflow-x:hidden;
}
img{max-width:100%;height:auto;display:block}
a{color:var(--brand-500);text-decoration:none;transition:color .2s ease}
a:hover{color:var(--brand-900)}
h1,h2,h3,h4{margin:0;font-weight:800;letter-spacing:-.02em;color:var(--ink)}
p{margin:0 0 1em}
ul,ol{margin:0;padding:0;list-style:none}
button{font-family:inherit}
:focus-visible{outline:3px solid rgba(168,230,58,.55);outline-offset:2px}

.container{max-width:var(--container);padding-left:24px;padding-right:24px;margin:0 auto}
.section{padding:96px 0}
.section-sand{background:var(--sand)}
.section-mist{background:linear-gradient(180deg,#F8F6F2 0%,#EEF3F1 100%)}
.section-dark{background:var(--brand-900);color:#E7EFEC}
.section-dark h2,.section-dark h3{color:#FFFFFF}

/* ---------- 通用标题形态 ---------- */
.sec-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:40px;flex-wrap:wrap}
.sec-head-left{max-width:720px}
.sec-index{
  display:inline-block;
  font-family:var(--font-mono);
  font-size:13px;
  letter-spacing:.18em;
  color:var(--brand-500);
  background:rgba(168,230,58,.22);
  border-radius:999px;
  padding:4px 12px;
  margin-bottom:14px;
  font-weight:600;
}
.sec-title{font-size:clamp(1.6rem,2.6vw,2.2rem);line-height:1.25;margin-bottom:10px}
.sec-desc{color:var(--ink-2);font-size:15px;margin:0}
.text-link{
  display:inline-flex;align-items:center;gap:6px;
  font-size:15px;font-weight:600;color:var(--brand-700);
  position:relative;padding-bottom:2px;white-space:nowrap;
}
.text-link::after{
  content:"";position:absolute;left:0;bottom:0;height:2px;width:100%;
  background:var(--accent);transform:scaleX(0);transform-origin:left;
  transition:transform .24s ease;
}
.text-link:hover::after{transform:scaleX(1)}
.text-link .arw{transition:transform .24s ease}
.text-link:hover .arw{transform:translateX(4px)}

/* ---------- 按钮 ---------- */
.btn{
  border-radius:var(--radius-btn);
  font-size:15px;
  font-weight:600;
  padding:12px 22px;
  min-height:46px;
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  border:1px solid transparent;
  transition:background-color .22s ease,color .22s ease,border-color .22s ease,transform .22s ease,box-shadow .22s ease;
}
.btn:focus,.btn:focus-visible{box-shadow:0 0 0 3px rgba(168,230,58,.28);outline:none}
.btn-brand{background:var(--brand-700);color:#fff;border-color:var(--brand-700)}
.btn-brand:hover{background:var(--brand-900);border-color:var(--brand-900);color:#fff}
.btn-brand:hover .arw{transform:translateX(4px)}
.btn-brand:active{background:var(--brand-900);transform:none}
.btn-line{background:transparent;color:var(--brand-900);border-color:var(--mist)}
.btn-line:hover{border-color:var(--brand-500);color:var(--brand-900);background:rgba(216,227,223,.35)}
.btn-accent{background:var(--accent);color:var(--brand-900);border-color:var(--accent);font-weight:800}
.btn-accent:hover{background:#9FD82F;border-color:#9FD82F;color:var(--brand-900)}
.btn-accent:hover .arw,.btn-line:hover .arw{transform:translateX(4px)}
.btn .arw{transition:transform .22s ease;display:inline-block}
.btn-lg{min-height:52px;padding:14px 26px;font-size:16px}
.btn-block{width:100%}

/* ---------- 导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:1040;
  background:rgba(248,246,242,0);
  border-bottom:1px solid transparent;
  transition:background-color .28s ease,border-color .28s ease,box-shadow .28s ease;
}
.site-header.is-scrolled{
  background:rgba(248,246,242,.94);
  backdrop-filter:saturate(160%) blur(8px);
  border-bottom:1px solid var(--mist);
  box-shadow:0 1px 2px rgba(16,22,19,.05);
}
.nav-shell{display:flex;align-items:center;min-height:76px;gap:20px}
.brand{display:inline-flex;align-items:center;gap:10px;text-decoration:none;flex:0 0 auto}
.brand-mark{
  width:36px;height:36px;border-radius:10px;
  background:var(--brand-900);color:var(--accent);
  display:inline-flex;align-items:center;justify-content:center;
  font-family:var(--font-mono);font-weight:800;font-size:17px;letter-spacing:-.04em;
}
.brand-text{font-size:18px;font-weight:800;color:var(--brand-900);letter-spacing:-.01em}
.brand-sub{display:block;font-size:11px;font-weight:400;color:var(--ink-3);letter-spacing:.12em}
.nav-main{display:flex;align-items:center;gap:28px;margin-left:auto}
.nav-main a{
  position:relative;font-size:15px;letter-spacing:.01em;color:var(--ink-2);font-weight:600;
  padding:6px 0;
}
.nav-main a::after{
  content:"";position:absolute;left:0;bottom:0;height:2px;width:100%;
  background:var(--accent);transform:scaleX(0);transform-origin:left;
  transition:transform .24s ease;
}
.nav-main a:hover{color:var(--brand-900)}
.nav-main a:hover::after{transform:scaleX(1)}
.nav-main a.active{color:var(--brand-900)}
.nav-main a.active::after{transform:scaleX(1)}
.nav-cta{margin-left:28px}
.navbar-toggler{
  border:1px solid var(--mist);border-radius:10px;padding:8px 10px;background:#fff;
  margin-left:auto;
}
.navbar-toggler:focus{box-shadow:0 0 0 3px rgba(168,230,58,.28)}
.toggler-bars{display:block;width:20px;height:2px;background:var(--brand-900);position:relative}
.toggler-bars::before,.toggler-bars::after{
  content:"";position:absolute;left:0;width:20px;height:2px;background:var(--brand-900);
}
.toggler-bars::before{top:-6px}
.toggler-bars::after{top:6px}

@media (max-width:991.98px){
  .nav-shell{min-height:66px}
  .nav-main{
    flex-direction:column;align-items:flex-start;gap:4px;
    margin:16px 0 0;padding:12px 0 0;border-top:1px solid var(--mist);width:100%;
  }
  .nav-main a{width:100%;padding:12px 0;font-size:16px}
  .nav-cta{margin:12px 0 4px;width:100%}
  .navbar-collapse{background:var(--card);border-radius:var(--radius-card);padding:8px 20px 20px;margin-top:12px;box-shadow:var(--shadow-2);border:1px solid var(--mist)}
}

/* ---------- Hero ---------- */
.hero{
  position:relative;
  padding:76px 0 88px;
  background:
    radial-gradient(900px 420px at 88% -8%,rgba(168,230,58,.16),transparent 62%),
    linear-gradient(180deg,#F8F6F2 0%,#F2F5F2 100%);
  overflow:hidden;
}
.hero-grid{display:grid;grid-template-columns:1.02fr .98fr;gap:56px;align-items:center}
.hero-eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;font-weight:600;color:var(--brand-700);
  background:#fff;border:1px solid var(--mist);border-radius:999px;
  padding:6px 14px;margin-bottom:20px;
}
.hero-eyebrow .dot{width:7px;height:7px;border-radius:50%;background:var(--accent);box-shadow:0 0 0 3px rgba(168,230,58,.25)}
.hero h1{font-size:clamp(2.2rem,4.4vw,3.5rem);line-height:1.15;letter-spacing:-.02em;margin-bottom:18px}
.hero h1 em{font-style:normal;position:relative;white-space:nowrap}
.hero h1 em::after{
  content:"";position:absolute;left:0;right:0;bottom:6px;height:10px;
  background:rgba(168,230,58,.42);z-index:-1;border-radius:3px;
}
.hero .lead{font-size:17px;color:var(--ink-2);max-width:560px;margin-bottom:26px}
.hero-actions{display:flex;gap:14px;flex-wrap:wrap;margin-bottom:26px}
.hero-tags{display:flex;gap:10px;flex-wrap:wrap}
.tag{
  display:inline-flex;align-items:center;gap:6px;
  font-size:13px;color:var(--ink-2);
  background:rgba(216,227,223,.5);border:1px solid var(--mist);
  border-radius:999px;padding:5px 12px;
}
.hero-figure{position:relative}
.hero-figure .frame{
  border:1px solid var(--mist);
  border-radius:var(--radius-img);
  overflow:hidden;
  background:var(--card);
  box-shadow:var(--shadow-2);
}
.hero-figure img{width:100%;height:100%;object-fit:cover;aspect-ratio:4/3}
.hero-badge{
  position:absolute;right:-14px;bottom:26px;
  background:var(--brand-900);color:#fff;
  border-radius:14px;padding:14px 18px;
  box-shadow:var(--shadow-2);min-width:172px;
}
.hero-badge .hb-num{
  font-family:var(--font-mono);font-size:26px;font-weight:800;color:var(--accent);
  line-height:1.1;letter-spacing:-.02em;
}
.hero-badge .hb-txt{font-size:12px;color:#B9C9C4;letter-spacing:.04em;margin-top:2px}

/* ---------- 指标看板 ---------- */
.metrics{
  display:grid;grid-template-columns:repeat(4,1fr);
  background:var(--card);
  border:1px solid var(--mist);
  border-radius:var(--radius-card);
  overflow:hidden;
  box-shadow:var(--shadow-1);
}
.metric{padding:30px 26px;border-right:1px solid var(--mist)}
.metric:last-child{border-right:0}
.metric .m-num{
  font-family:var(--font-mono);font-weight:800;
  font-size:clamp(2.4rem,5vw,3.6rem);
  line-height:1;letter-spacing:-.03em;
  color:var(--brand-900);
  font-variant-numeric:tabular-nums;
  display:flex;align-items:baseline;gap:4px;
}
.metric .m-unit{font-size:1rem;font-weight:600;color:var(--brand-500);letter-spacing:0}
.metric .m-label{margin-top:12px;font-size:14px;color:var(--ink-2)}
.metric .m-note{margin-top:6px;font-size:13px;color:var(--ink-3)}

/* ---------- Bento 服务矩阵 ---------- */
.bento{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.bento-card{
  background:var(--card);
  border:1px solid var(--mist);
  border-radius:var(--radius-card);
  padding:28px;
  display:flex;flex-direction:column;
  box-shadow:var(--shadow-1);
  transition:transform .24s ease,box-shadow .24s ease,border-color .24s ease;
}
.bento-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-2);border-color:rgba(28,107,95,.4)}
.bento-feature{grid-column:span 2;grid-row:span 2;padding:0;overflow:hidden;flex-direction:row;align-items:stretch}
.bento-feature .bf-text{padding:36px;display:flex;flex-direction:column;justify-content:center;flex:1 1 54%}
.bento-feature .bf-media{flex:1 1 46%;min-height:280px;position:relative;background:var(--sand)}
.bento-feature .bf-media img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover}
.bento-feature h3{font-size:22px;margin-bottom:12px}
.bento-feature p{font-size:15px;color:var(--ink-2);margin-bottom:20px}
.bento-num{
  font-family:var(--font-mono);font-size:13px;font-weight:700;letter-spacing:.14em;
  color:var(--brand-500);margin-bottom:16px;display:block;
}
.bento-card h3{font-size:17px;margin-bottom:10px}
.bento-card p{font-size:14px;color:var(--ink-2);margin-bottom:18px}
.bento-link{
  margin-top:auto;display:inline-flex;align-items:center;gap:6px;
  font-size:14px;font-weight:600;color:var(--brand-700);
}
.bento-link .arw{transition:transform .24s ease}
.bento-card:hover .bento-link .arw{transform:translateX(4px)}
.bento-ico{
  width:38px;height:38px;border-radius:10px;background:rgba(216,227,223,.55);
  border:1px solid var(--mist);display:inline-flex;align-items:center;justify-content:center;
  font-family:var(--font-mono);font-size:14px;font-weight:700;color:var(--brand-700);
  margin-bottom:16px;
}

/* ---------- 结果对比轨 ---------- */
.compare{
  background:var(--card);border:1px solid var(--mist);border-radius:var(--radius-card);
  padding:36px;box-shadow:var(--shadow-1);
}
.compare-track{display:grid;grid-template-columns:1fr 1fr;gap:0;align-items:center;margin-bottom:12px}
.compare-track .ct-left{text-align:left}
.compare-track .ct-right{text-align:right}
.compare-track .ct-title{font-size:14px;font-weight:700;color:var(--ink)}
.compare-track .ct-sub{font-size:13px;color:var(--ink-3)}
.rail{
  position:relative;height:14px;border-radius:999px;background:var(--sand);
  overflow:hidden;margin:16px 0 8px;
}
.rail .rail-fill{
  position:absolute;left:0;top:0;bottom:0;width:0;
  background:linear-gradient(90deg,rgba(168,230,58,.85),var(--accent));
  border-radius:999px;
  transition:width 1.1s cubic-bezier(.22,.61,.36,1);
}
.rail-legend{display:flex;justify-content:space-between;font-size:12px;color:var(--ink-3);font-family:var(--font-mono)}
.compare-list{margin-top:26px;border-top:1px solid var(--mist);padding-top:22px}
.compare-list li{
  display:flex;gap:12px;align-items:flex-start;
  padding:10px 0;font-size:15px;color:var(--ink-2);
  border-bottom:1px dashed rgba(216,227,223,.9);
}
.compare-list li:last-child{border-bottom:0}
.compare-list .ck{
  flex:0 0 auto;width:20px;height:20px;border-radius:6px;margin-top:3px;
  background:rgba(168,230,58,.28);color:var(--brand-900);
  display:inline-flex;align-items:center;justify-content:center;
  font-size:12px;font-weight:800;
}
.compare-concl{
  margin-top:22px;padding:16px 20px;border-left:3px solid var(--accent);
  background:rgba(239,233,223,.6);border-radius:0 10px 10px 0;
  font-size:15px;color:var(--brand-900);font-weight:600;
}

/* ---------- 场景流程 ---------- */
.flow{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.flow-item{
  background:var(--card);border:1px solid var(--mist);border-radius:var(--radius-card);
  padding:28px;box-shadow:var(--shadow-1);
  transition:transform .24s ease,box-shadow .24s ease,border-color .24s ease;
}
.flow-item:hover{transform:translateY(-2px);box-shadow:var(--shadow-2);border-color:rgba(28,107,95,.4)}
.flow-step{
  font-family:var(--font-mono);font-size:12px;font-weight:700;letter-spacing:.16em;
  color:var(--brand-500);margin-bottom:14px;
}
.flow-item h3{font-size:17px;margin-bottom:10px}
.flow-item p{font-size:14px;color:var(--ink-2);margin:0}
.flow-figure{margin-top:36px;border:1px solid var(--mist);border-radius:var(--radius-img);overflow:hidden}
.flow-figure img{width:100%;aspect-ratio:16/6;object-fit:cover}
.flow-figure figcaption{font-size:13px;color:var(--ink-3);text-align:center;padding:12px;background:var(--card)}

/* ---------- CMS 资讯列表 ---------- */
.post-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.post-card{
  background:var(--card);border:1px solid var(--mist);border-radius:var(--radius-card);
  padding:24px;display:flex;flex-direction:column;
  box-shadow:var(--shadow-1);
  transition:transform .24s ease,box-shadow .24s ease,border-color .24s ease;
}
.post-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-2);border-color:rgba(28,107,95,.4)}
.post-badge{
  align-self:flex-start;
  font-size:12px;font-weight:600;color:var(--brand-700);
  background:rgba(216,227,223,.6);border-radius:999px;padding:4px 12px;margin-bottom:14px;
}
.post-card h3{
  font-size:17px;line-height:1.5;margin-bottom:10px;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.post-card h3 a{color:var(--ink)}
.post-card h3 a:hover{color:var(--brand-500)}
.post-card .p-sum{
  font-size:14px;color:var(--ink-2);margin-bottom:18px;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.post-meta{
  margin-top:auto;display:flex;align-items:center;justify-content:space-between;
  gap:12px;font-size:13px;color:var(--ink-3);
  padding-top:14px;border-top:1px solid var(--mist);
}
.post-meta .p-time{font-family:var(--font-mono);font-size:12px;letter-spacing:.02em}
.post-meta .p-more{color:var(--brand-700);font-weight:600;display:inline-flex;align-items:center;gap:4px}
.post-meta .p-more .arw{transition:transform .24s ease}
.post-card:hover .p-more .arw{transform:translateX(4px)}
.empty-state{
  grid-column:1/-1;
  background:var(--card);border:1px dashed var(--mist);border-radius:var(--radius-card);
  padding:44px 24px;text-align:center;color:var(--ink-2);font-size:15px;
}
.empty-state a{display:inline-block;margin-top:10px;font-weight:600}

/* ---------- FAQ ---------- */
.faq-wrap{max-width:900px;margin:0 auto}
.accordion-item{
  background:transparent;border:0;border-bottom:1px solid var(--mist);
}
.accordion-item:first-of-type{border-top:1px solid var(--mist)}
.accordion-button{
  background:transparent;border:0;border-radius:0;box-shadow:none;
  padding:22px 4px;font-size:18px;font-weight:600;color:var(--ink);
  display:flex;align-items:center;gap:16px;
}
.accordion-button:not(.collapsed){background:transparent;color:var(--brand-700);box-shadow:none}
.accordion-button:focus{box-shadow:0 0 0 3px rgba(168,230,58,.25);border-radius:8px}
.accordion-button::after{display:none!important}
.plus{
  margin-left:auto;flex:0 0 auto;width:18px;height:18px;position:relative;
}
.plus::before,.plus::after{
  content:"";position:absolute;background:var(--brand-700);border-radius:2px;
  transition:transform .24s ease,background-color .24s ease;
}
.plus::before{left:0;top:8px;width:18px;height:2px}
.plus::after{left:8px;top:0;width:2px;height:18px}
.accordion-button:not(.collapsed) .plus::after{transform:scaleY(0)}
.accordion-body{padding:0 4px 24px;font-size:15px;color:var(--ink-2);line-height:1.85}

/* ---------- 转化表单 ---------- */
.cta-band{
  background:var(--brand-900);
  border-radius:20px;
  padding:56px;
  color:#E7EFEC;
  position:relative;
  overflow:hidden;
}
.cta-band::before{
  content:"";position:absolute;right:-120px;top:-120px;width:340px;height:340px;
  border-radius:50%;background:radial-gradient(circle,rgba(168,230,58,.22),transparent 68%);
}
.cta-grid{position:relative;display:grid;grid-template-columns:5fr 7fr;gap:48px;align-items:start}
.cta-left h2{font-size:clamp(1.6rem,2.6vw,2.2rem);color:#fff;margin-bottom:14px;line-height:1.25}
.cta-left p{color:#AFC2BC;font-size:15px}
.cta-points{margin-top:22px}
.cta-points li{
  display:flex;gap:10px;align-items:flex-start;
  font-size:15px;color:#D6E3DF;padding:9px 0;
  border-bottom:1px dashed rgba(216,227,223,.18);
}
.cta-points li:last-child{border-bottom:0}
.cta-points .mk{
  flex:0 0 auto;width:18px;height:18px;border-radius:5px;margin-top:4px;
  background:rgba(168,230,58,.24);color:var(--accent);
  display:inline-flex;align-items:center;justify-content:center;font-size:11px;font-weight:800;
}
.cta-contact{margin-top:24px;font-size:14px;color:#9FB4AE}
.cta-contact strong{display:block;color:#fff;font-size:16px;font-weight:600;margin-top:4px}
.form-card{
  background:rgba(255,255,255,.04);
  border:1px solid rgba(216,227,223,.22);
  border-radius:var(--radius-card);
  padding:30px;
}
.form-label{
  font-size:14px;font-weight:600;color:#D6E3DF;margin-bottom:8px;
}
.form-control,.form-select{
  border-radius:var(--radius-input);
  border:1px solid rgba(216,227,223,.28);
  background:rgba(255,255,255,.06);
  color:#fff;font-size:15px;padding:11px 14px;min-height:46px;
  transition:border-color .2s ease,box-shadow .2s ease,background-color .2s ease;
}
.form-control::placeholder{color:rgba(182,199,194,.7)}
.form-control:focus,.form-select:focus{
  background:rgba(255,255,255,.1);
  border-color:var(--accent);
  color:#fff;
  box-shadow:0 0 0 3px rgba(168,230,58,.2);
}
.form-select option{color:var(--ink);background:#fff}
.form-check-input{
  border-radius:5px;border:1px solid rgba(216,227,223,.4);
  background-color:rgba(255,255,255,.08);width:18px;height:18px;margin-top:3px;
}
.form-check-input:checked{background-color:var(--accent);border-color:var(--accent)}
.form-check-input:focus{box-shadow:0 0 0 3px rgba(168,230,58,.2);border-color:var(--accent)}
.form-check-label{font-size:13px;color:#AFC2BC;line-height:1.7}
.form-hint{font-size:13px;color:#9FB4AE;margin-top:8px}
.form-msg{margin-top:14px;font-size:14px;font-weight:600;color:var(--accent);display:none}
.form-msg.show{display:block}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--brand-900);color:#B9C9C4;padding:72px 0 0;margin-top:96px}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.2fr;gap:40px;padding-bottom:48px}
.footer-brand{display:inline-flex;align-items:center;gap:10px;margin-bottom:16px}
.footer-brand .brand-mark{background:rgba(255,255,255,.08);color:var(--accent)}
.footer-brand .brand-text{color:#fff}
.site-footer p{font-size:14px;color:#9FB4AE;line-height:1.85}
.footer-col h4{font-size:15px;color:#fff;margin-bottom:16px;font-weight:600;letter-spacing:.01em}
.footer-col li{margin-bottom:10px}
.footer-col a{font-size:14px;color:#B9C9C4}
.footer-col a:hover{color:var(--accent)}
.footer-contact li{display:flex;gap:10px;font-size:14px;color:#B9C9C4;margin-bottom:12px;align-items:flex-start}
.footer-contact .fc-k{color:#7F968F;flex:0 0 64px}
.footer-bottom{
  border-top:1px solid rgba(216,227,223,.14);
  padding:22px 0;display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:13px;color:#7F968F;
}
.footer-bottom a{color:#7F968F}
.footer-bottom a:hover{color:var(--accent)}

/* ---------- 入场动效 ---------- */
.reveal{opacity:0;transform:translateY(12px);transition:opacity .6s ease,transform .6s ease}
.reveal.is-in{opacity:1;transform:none}

/* ---------- 响应式 ---------- */
@media (max-width:1199.98px){
  .bento{grid-template-columns:repeat(2,1fr)}
  .bento-feature{grid-column:span 2;grid-row:auto}
  .cta-grid{grid-template-columns:1fr;gap:34px}
}
@media (max-width:991.98px){
  .section{padding:72px 0}
  .hero{padding:52px 0 68px}
  .hero-grid{grid-template-columns:1fr;gap:38px}
  .hero-badge{right:12px;bottom:12px}
  .metrics{grid-template-columns:repeat(2,1fr)}
  .metric:nth-child(2n){border-right:0}
  .metric:nth-child(-n+2){border-bottom:1px solid var(--mist)}
  .post-grid{grid-template-columns:repeat(2,1fr)}
  .flow{grid-template-columns:1fr;gap:20px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
  .cta-band{padding:38px 26px}
}
@media (max-width:767.98px){
  .container{padding-left:16px;padding-right:16px}
  .section{padding:56px 0}
  .sec-head{margin-bottom:28px}
  .bento{grid-template-columns:1fr}
  .bento-feature{grid-column:span 1;flex-direction:column}
  .bento-feature .bf-text{padding:26px}
  .bento-feature .bf-media{min-height:200px}
  .compare{padding:24px}
  .cta-band{border-radius:16px;padding:30px 20px}
  .form-card{padding:22px}
  .site-footer{padding-top:52px;margin-top:64px}
}
@media (max-width:575.98px){
  .metrics{grid-template-columns:1fr}
  .metric{border-right:0;border-bottom:1px solid var(--mist);padding:24px 20px}
  .metric:last-child{border-bottom:0}
  .post-grid{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr}
  .hero-actions .btn{width:100%}
  .footer-bottom{flex-direction:column;gap:8px}
  .compare-track{grid-template-columns:1fr;gap:6px}
  .compare-track .ct-right{text-align:left}
  .hero-badge{position:static;margin-top:14px;display:inline-block}
}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{transition:none!important;animation:none!important;scroll-behavior:auto!important}
  .reveal{opacity:1;transform:none}
}

/* roulang page: article */
:root{
  --brand-900:#0C2E29;
  --brand-700:#10403A;
  --brand-500:#1C6B5F;
  --accent:#A8E63A;
  --sand:#EFE9DF;
  --mist:#D8E3DF;
  --bg:#F8F6F2;
  --card:#FFFFFF;
  --ink:#101613;
  --ink-2:#566058;
  --ink-3:#8A948D;
  --pos:#2E9E6B;
  --neg:#C2543C;
  --r-card:14px;
  --r-btn:10px;
  --r-img:16px;
  --r-input:10px;
  --sh-1:0 1px 2px rgba(16,22,19,.05);
  --sh-2:0 12px 32px -16px rgba(16,22,19,.18);
  --sans:-apple-system,"PingFang SC","HarmonyOS Sans","Noto Sans SC","Microsoft YaHei",sans-serif;
  --mono:"JetBrains Mono",ui-monospace,SFMono-Regular,Menlo,monospace;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:var(--sans);
  font-size:16px;
  line-height:1.75;
  color:var(--ink);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;height:auto;display:block}
a{color:var(--brand-700);text-decoration:none;transition:color .22s ease}
a:hover{color:var(--brand-900)}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4{margin:0;font-weight:800;line-height:1.22;letter-spacing:-.01em}
p{margin:0 0 1em}
button,input,select,textarea{font:inherit;color:inherit}
:focus-visible{outline:2px solid var(--brand-500);outline-offset:2px}
.container{width:100%;max-width:1200px;margin:0 auto;padding-left:24px;padding-right:24px}

/* ---------- header ---------- */
.site-header{
  position:sticky;top:0;z-index:1030;
  background:rgba(248,246,242,.93);
  backdrop-filter:saturate(1.1) blur(10px);
  border-bottom:1px solid var(--mist);
  transition:box-shadow .25s ease,background .25s ease;
}
.site-header.scrolled{background:rgba(255,255,255,.97);box-shadow:0 6px 20px -18px rgba(16,22,19,.5)}
.navbar.nav-shell{padding:0;position:relative;min-height:74px;display:flex;align-items:center;justify-content:space-between;flex-wrap:nowrap}
.navbar-brand.brand{margin:0;padding:0;display:flex;align-items:center;gap:12px;flex:0 0 auto}
.brand-mark{
  width:38px;height:38px;border-radius:11px;flex:0 0 auto;
  background:linear-gradient(140deg,var(--brand-700),var(--brand-900));
  color:var(--accent);display:grid;place-items:center;
  font-family:var(--mono);font-size:17px;font-weight:700;letter-spacing:.02em;
}
.brand-text{display:block;font-size:17px;font-weight:800;color:var(--ink);line-height:1.2;letter-spacing:.01em}
.brand-sub{display:block;font-size:11.5px;color:var(--ink-3);letter-spacing:.05em;margin-top:2px}
.navbar-toggler{
  border:1px solid var(--mist);background:#fff;border-radius:10px;
  padding:10px 12px;box-shadow:none;transition:border-color .2s ease;
}
.navbar-toggler:hover{border-color:var(--brand-500)}
.navbar-toggler:focus{box-shadow:none;outline:none}
.toggler-bars{display:block;position:relative;width:20px;height:2px;background:var(--brand-900);border-radius:2px}
.toggler-bars::before,.toggler-bars::after{content:"";position:absolute;left:0;width:20px;height:2px;background:var(--brand-900);border-radius:2px}
.toggler-bars::before{top:-6px}
.toggler-bars::after{top:6px}
.nav-main{display:flex;align-items:center;gap:28px;margin:0}
.nav-main a{position:relative;font-size:15px;color:var(--ink-2);padding:6px 0;letter-spacing:.01em;display:inline-block}
.nav-main a::after{content:"";position:absolute;left:0;bottom:-2px;width:0;height:2px;background:var(--accent);transition:width .24s ease}
.nav-main a:hover{color:var(--brand-900)}
.nav-main a:hover::after{width:100%}
.nav-main a.active{color:var(--brand-900);font-weight:600}
.nav-main a.active::after{width:100%}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:46px;padding:12px 22px;border-radius:var(--r-btn);
  font-size:15px;font-weight:600;letter-spacing:.01em;border:1px solid transparent;
  transition:background .22s ease,color .22s ease,border-color .22s ease,transform .22s ease;
}
.btn .arw{transition:transform .22s ease}
.btn:hover .arw{transform:translateX(4px)}
.btn-brand{background:var(--brand-700);border-color:var(--brand-700);color:#fff}
.btn-brand:hover{background:var(--brand-900);border-color:var(--brand-900);color:#fff}
.btn-brand:active{transform:none;background:var(--brand-900);color:#fff}
.btn-ghost{background:transparent;border-color:var(--mist);color:var(--brand-900)}
.btn-ghost:hover{background:#fff;border-color:var(--brand-500);color:var(--brand-900)}
.nav-cta{padding:11px 20px;min-height:44px}
@media (min-width:992px){
  .navbar-collapse{flex-grow:0;flex-basis:auto}
  #mainNav{display:flex;align-items:center;gap:34px;justify-content:flex-end}
}
@media (max-width:991.98px){
  .navbar-toggler{display:inline-flex;align-items:center;justify-content:center}
  #mainNav{
    position:absolute;top:calc(100% + 1px);left:0;right:0;
    background:#fff;border:1px solid var(--mist);border-radius:0 0 14px 14px;
    padding:16px 24px 24px;box-shadow:var(--sh-2);
  }
  .nav-main{flex-direction:column;align-items:flex-start;gap:2px;width:100%}
  .nav-main a{width:100%;padding:11px 0;font-size:16px}
  .nav-main a::after{display:none}
  .nav-cta{margin-top:16px;width:100%}
  .brand-sub{display:none}
}

/* ---------- article hero ---------- */
.article-hero{position:relative;overflow:hidden;padding:44px 0 34px;border-bottom:1px solid var(--mist);background:linear-gradient(180deg,#fff 0%,var(--bg) 100%)}
.article-hero::after{
  content:"";position:absolute;right:-80px;top:-60px;width:460px;height:340px;
  background:url('/assets/images/backpic/back-2.webp') center/cover no-repeat;
  border-radius:28px;opacity:.13;pointer-events:none;
}
.article-hero .container{position:relative;z-index:1}
.crumbs{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13.5px;color:var(--ink-3);margin-bottom:18px}
.crumbs a{color:var(--ink-2)}
.crumbs a:hover{color:var(--brand-700)}
.crumbs .sep{color:var(--ink-3);opacity:.6}
.crumbs .cur{color:var(--ink);max-width:340px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.badge-cat{
  display:inline-flex;align-items:center;gap:6px;
  font-size:12.5px;font-weight:600;letter-spacing:.06em;color:var(--brand-700);
  background:rgba(28,107,95,.08);border:1px solid rgba(28,107,95,.2);
  border-radius:999px;padding:5px 13px;
}
.article-title{font-size:clamp(1.9rem,3.6vw,2.85rem);line-height:1.18;letter-spacing:-.02em;margin:16px 0 18px;max-width:22em}
.meta-row{display:flex;flex-wrap:wrap;align-items:center;gap:10px 24px;font-size:13.5px;color:var(--ink-3)}
.meta-item{display:flex;align-items:center;gap:8px}
.meta-item::before{content:"";width:5px;height:5px;border-radius:50%;background:var(--mist);flex:0 0 auto}

/* ---------- layout ---------- */
.article-wrap{
  display:grid;grid-template-columns:minmax(0,1fr) 320px;gap:56px;
  padding:56px 0 72px;align-items:start;
}
.article-panel{
  background:var(--card);border:1px solid var(--mist);border-radius:var(--r-card);
  box-shadow:var(--sh-1);padding:40px 44px;
}
.article-body{max-width:760px;font-size:16.5px;line-height:1.9;color:#313B35}
.article-body p{margin:0 0 1.2em}
.article-body h2{
  position:relative;font-size:clamp(1.28rem,2.2vw,1.6rem);color:var(--ink);
  margin:2em 0 .8em;padding-left:15px;scroll-margin-top:96px;
}
.article-body h2::before{content:"";position:absolute;left:0;top:.2em;bottom:.2em;width:4px;border-radius:2px;background:var(--brand-500)}
.article-body h3{font-size:1.12rem;color:var(--ink);margin:1.6em 0 .6em;scroll-margin-top:96px}
.article-body strong{color:var(--ink);font-weight:600}
.article-body a{color:var(--brand-700);border-bottom:1px solid rgba(28,107,95,.32)}
.article-body a:hover{color:var(--brand-900);border-bottom-color:var(--brand-900)}
.article-body ul{margin:0 0 1.2em;padding:0}
.article-body ul li{position:relative;padding-left:20px;margin-bottom:.5em}
.article-body ul li::before{content:"";position:absolute;left:2px;top:.78em;width:6px;height:6px;border-radius:2px;background:var(--brand-500)}
.article-body ol{margin:0 0 1.2em;padding:0;counter-reset:li}
.article-body ol li{counter-increment:li;position:relative;padding-left:32px;margin-bottom:.55em}
.article-body ol li::before{
  content:counter(li,decimal-leading-zero);position:absolute;left:0;top:.24em;
  font-family:var(--mono);font-size:12.5px;font-weight:700;color:var(--brand-500);
}
.article-body blockquote{
  margin:1.6em 0;padding:14px 22px;background:var(--sand);
  border-left:3px solid var(--accent);border-radius:0 10px 10px 0;color:var(--ink);
}
.article-body blockquote p:last-child{margin-bottom:0}
.article-body img{border-radius:var(--r-img);border:1px solid var(--mist);margin:1.5em 0}
.article-body figure{margin:1.6em 0}
.article-body figcaption{font-size:13px;color:var(--ink-3);text-align:center;margin-top:10px}
.article-body table{width:100%;border-collapse:collapse;margin:1.6em 0;font-size:14.5px;display:block;overflow-x:auto}
.article-body th,.article-body td{border:1px solid var(--mist);padding:10px 14px;text-align:left;vertical-align:top}
.article-body th{background:rgba(216,227,223,.5);color:var(--ink);font-weight:600;white-space:nowrap}
.article-body code{
  font-family:var(--mono);font-size:13.5px;background:var(--sand);
  padding:2px 6px;border-radius:6px;color:var(--brand-700);
}
.article-body pre{
  background:var(--brand-900);color:#DDE9E4;padding:18px 20px;border-radius:12px;
  overflow-x:auto;font-family:var(--mono);font-size:13.5px;line-height:1.7;
}
.article-body pre code{background:none;color:inherit;padding:0}
.article-body hr{border:0;border-top:1px solid var(--mist);margin:2.2em 0}
.article-body>*:first-child{margin-top:0}

/* ---------- empty ---------- */
.empty-state{text-align:center;padding:44px 20px}
.empty-state h2{font-size:1.35rem;margin-bottom:12px}
.empty-state p{color:var(--ink-2);font-size:15px;max-width:520px;margin:0 auto 24px}

/* ---------- sidebar ---------- */
.article-side{position:sticky;top:96px;display:flex;flex-direction:column;gap:20px}
.side-card{
  background:var(--card);border:1px solid var(--mist);border-radius:var(--r-card);
  padding:22px;box-shadow:var(--sh-1);
}
.side-head{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-bottom:14px}
.side-title{font-size:14px;font-weight:700;color:var(--ink);letter-spacing:.04em;display:flex;align-items:center;gap:8px}
.side-title::before{content:"";width:6px;height:6px;border-radius:2px;background:var(--accent);flex:0 0 auto}
.toc-toggle{
  display:none;background:none;border:1px solid var(--mist);border-radius:999px;
  font-size:12.5px;color:var(--brand-700);padding:3px 12px;
}
.toc-list{border-left:1px solid var(--mist);display:flex;flex-direction:column}
.toc-list a{
  display:block;font-size:14px;color:var(--ink-2);padding:7px 0 7px 14px;
  border-left:2px solid transparent;margin-left:-1px;transition:color .2s ease,border-color .2s ease;
}
.toc-list a:hover{color:var(--brand-700);border-left-color:var(--accent)}
.side-links li+li{margin-top:11px}
.side-links a{display:flex;gap:9px;align-items:flex-start;font-size:14.5px;color:var(--ink-2)}
.side-links a::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--mist);flex:0 0 auto;margin-top:.62em}
.side-links a:hover{color:var(--brand-700)}
.side-links a:hover::before{background:var(--accent)}
.side-note{font-size:13px;color:var(--ink-3);line-height:1.7;margin:0}
.side-card .btn{width:100%}

/* ---------- sections ---------- */
.related{padding:0 0 80px}
.section-head{display:flex;align-items:baseline;justify-content:space-between;gap:20px;flex-wrap:wrap;margin-bottom:28px}
.section-head .left{display:flex;align-items:baseline;gap:12px;flex-wrap:wrap}
.section-num{font-family:var(--mono);font-size:13px;font-weight:700;color:var(--brand-500);letter-spacing:.12em}
.section-title{font-size:clamp(1.3rem,2.2vw,1.7rem)}
.link-more{position:relative;font-size:14px;font-weight:600;color:var(--brand-700);padding-bottom:3px}
.link-more::after{content:"";position:absolute;left:0;bottom:0;width:0;height:2px;background:var(--accent);transition:width .24s ease}
.link-more:hover::after{width:100%}
.card-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px}
.post-card{
  display:flex;flex-direction:column;background:var(--card);border:1px solid var(--mist);
  border-radius:var(--r-card);overflow:hidden;transition:transform .24s ease,box-shadow .24s ease,border-color .24s ease;
}
.post-card:hover{transform:translateY(-2px);box-shadow:var(--sh-2);border-color:rgba(28,107,95,.42)}
.post-thumb{aspect-ratio:16/10;background:var(--sand);overflow:hidden}
.post-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .45s ease}
.post-card:hover .post-thumb img{transform:scale(1.04)}
.post-body{padding:22px 24px 24px;display:flex;flex-direction:column;gap:10px;flex:1}
.post-body h3{font-size:17px;line-height:1.45}
.post-body h3 a{color:var(--ink)}
.post-body h3 a:hover{color:var(--brand-700)}
.post-body p{font-size:14px;color:var(--ink-2);margin:0;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.post-foot{margin-top:auto;display:flex;align-items:center;justify-content:space-between;font-size:13px;color:var(--ink-3)}
.post-foot .go{color:var(--brand-700);font-weight:600}

/* ---------- cta ---------- */
.cta-section{padding:0 0 88px}
.cta-band{
  background:var(--brand-900);border-radius:20px;
  padding:48px 48px 46px;display:grid;grid-template-columns:1.05fr 1fr;gap:48px;
  position:relative;overflow:hidden;
}
.cta-band::after{
  content:"";position:absolute;right:-90px;bottom:-110px;width:360px;height:300px;
  background:url('/assets/images/backpic/back-3.webp') center/cover no-repeat;
  border-radius:24px;opacity:.16;pointer-events:none;
}
.cta-copy{position:relative;z-index:1}
.cta-copy .tag{
  display:inline-block;font-family:var(--mono);font-size:12.5px;letter-spacing:.14em;
  color:var(--accent);margin-bottom:16px;
}
.cta-copy h2{color:#fff;font-size:clamp(1.5rem,2.6vw,2rem);margin-bottom:16px;line-height:1.25}
.cta-copy p{color:rgba(255,255,255,.72);font-size:15px;max-width:34em}
.cta-points{margin-top:22px;display:flex;flex-direction:column;gap:10px}
.cta-points li{display:flex;gap:10px;align-items:flex-start;color:rgba(255,255,255,.82);font-size:14.5px}
.cta-points li::before{content:"";width:6px;height:6px;border-radius:2px;background:var(--accent);flex:0 0 auto;margin-top:.62em}
.cta-form{
  position:relative;z-index:1;background:#fff;border-radius:16px;padding:28px;
  box-shadow:0 20px 40px -28px rgba(0,0,0,.55);
}
.form-row{margin-bottom:16px}
.form-label{display:block;font-size:13.5px;font-weight:600;color:var(--ink);margin-bottom:7px}
.form-control,.form-select{
  width:100%;min-height:46px;padding:12px 14px;font-size:15px;color:var(--ink);
  background:#fff;border:1px solid var(--mist);border-radius:var(--r-input);
  box-shadow:none;transition:border-color .2s ease,box-shadow .2s ease;
}
.form-control::placeholder{color:var(--ink-3)}
.form-control:focus,.form-select:focus{
  border-color:var(--brand-500);box-shadow:0 0 0 3px rgba(168,230,58,.28);outline:none;
}
.form-hint{font-size:12.5px;color:var(--ink-3);margin:12px 0 0;display:flex;gap:8px;align-items:flex-start}
.form-hint::before{content:"";width:5px;height:5px;border-radius:50%;background:var(--mist);flex:0 0 auto;margin-top:.6em}
.cta-form .btn{width:100%;margin-top:6px}

/* ---------- footer ---------- */
.site-footer{background:var(--brand-900);color:rgba(255,255,255,.72);padding:64px 0 0}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:40px;padding-bottom:48px}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:14px}
.site-footer .brand-mark{background:var(--brand-500);color:#fff}
.footer-brand .brand-text{color:#fff;font-size:17px}
.site-footer p{font-size:14px;line-height:1.85;color:rgba(255,255,255,.62);max-width:30em;margin:0}
.footer-col h4{color:#fff;font-size:14px;letter-spacing:.08em;margin-bottom:16px}
.footer-col ul li+li{margin-top:10px}
.footer-col a{color:rgba(255,255,255,.72);font-size:14.5px}
.footer-col a:hover{color:var(--accent)}
.footer-contact li{display:flex;gap:10px;font-size:14px;align-items:flex-start}
.footer-contact li+li{margin-top:10px}
.fc-k{color:rgba(255,255,255,.45);flex:0 0 44px}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.12);padding:20px 0;
  display:flex;justify-content:space-between;gap:12px;flex-wrap:wrap;
  font-size:13px;color:rgba(255,255,255,.5);
}

/* ---------- responsive ---------- */
@media (max-width:1199.98px){
  .article-wrap{gap:40px}
}
@media (max-width:991.98px){
  .article-wrap{grid-template-columns:1fr;padding:36px 0 56px}
  .article-side{position:static}
  .article-panel{padding:32px 30px}
  .toc-toggle{display:inline-flex}
  .toc-card.collapsed .toc-list{display:none}
  .card-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .cta-band{grid-template-columns:1fr;gap:32px;padding:36px 30px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
}
@media (max-width:767.98px){
  .container{padding-left:16px;padding-right:16px}
  .article-hero{padding:32px 0 26px}
  .crumbs .cur{max-width:180px}
  .section-head{margin-bottom:22px}
}
@media (max-width:575.98px){
  .article-panel{padding:24px 20px}
  .article-body{font-size:16px}
  .card-grid{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr}
  .cta-band{padding:28px 22px;border-radius:16px}
  .cta-form{padding:22px}
  .related{padding-bottom:56px}
  .cta-section{padding-bottom:60px}
  .meta-row{gap:8px 16px}
}
@media (prefers-reduced-motion: reduce){
  *,*::before,*::after{transition:none!important;animation:none!important;scroll-behavior:auto!important}
}

/* roulang page: category1 */
:root{
  --brand-900:#0C2E29;
  --brand-700:#10403A;
  --brand-500:#1C6B5F;
  --accent:#A8E63A;
  --sand:#EFE9DF;
  --mist:#D8E3DF;
  --bg:#F8F6F2;
  --card:#FFFFFF;
  --ink:#101613;
  --ink-2:#566058;
  --ink-3:#8A948D;
  --pos:#2E9E6B;
  --neg:#C2543C;
  --radius-card:14px;
  --radius-btn:10px;
  --radius-img:16px;
  --radius-input:10px;
  --shadow-1:0 1px 2px rgba(16,22,19,.05);
  --shadow-2:0 12px 32px -16px rgba(16,22,19,.18);
  --font-sans:-apple-system,"PingFang SC","HarmonyOS Sans","Noto Sans SC","Microsoft YaHei",sans-serif;
  --font-mono:"JetBrains Mono",ui-monospace,SFMono-Regular,Menlo,monospace;
  --sec-gap:96px;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:var(--font-sans);
  font-size:16px;
  line-height:1.75;
  color:var(--ink);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;height:auto;display:block;}
a{color:var(--brand-500);text-decoration:none;transition:color .2s ease,border-color .2s ease;}
a:hover{color:var(--brand-900);}
h1,h2,h3,h4{margin:0;color:var(--ink);letter-spacing:-.01em;}
p{margin:0 0 1em;}
ul,ol{margin:0;padding:0;list-style:none;}
button{font-family:inherit;}
:focus-visible{outline:3px solid rgba(168,230,58,.55);outline-offset:2px;}
.container{max-width:1200px;padding-left:24px;padding-right:24px;margin:0 auto;width:100%;}

/* ===== Header ===== */
.site-header{
  position:sticky;
  top:0;
  z-index:1030;
  background:rgba(248,246,242,.86);
  border-bottom:1px solid transparent;
  transition:background .28s ease,box-shadow .28s ease,border-color .28s ease;
  backdrop-filter:saturate(160%) blur(8px);
}
.site-header.is-scrolled{
  background:rgba(255,255,255,.96);
  border-bottom-color:var(--mist);
  box-shadow:0 1px 2px rgba(16,22,19,.05);
}
.nav-shell{
  display:flex;
  align-items:center;
  justify-content:space-between;
  min-height:76px;
  gap:24px;
}
.brand{display:flex;align-items:center;gap:12px;text-decoration:none;}
.brand-mark{
  width:40px;height:40px;
  flex:0 0 40px;
  border-radius:12px;
  background:linear-gradient(160deg,var(--brand-500),var(--brand-900));
  color:#fff;
  font-family:var(--font-mono);
  font-weight:800;
  font-size:19px;
  display:flex;align-items:center;justify-content:center;
  letter-spacing:0;
}
.brand-text{
  display:block;
  font-size:18px;
  font-weight:800;
  color:var(--brand-900);
  line-height:1.2;
  letter-spacing:.01em;
}
.brand-sub{
  display:block;
  font-size:12px;
  color:var(--ink-3);
  letter-spacing:.02em;
  line-height:1.5;
}
.nav-main{
  display:flex;
  align-items:center;
  gap:28px;
  margin:0 auto 0 40px;
}
.nav-main li{position:relative;}
.nav-main a{
  position:relative;
  display:inline-block;
  font-size:15px;
  letter-spacing:.01em;
  color:var(--ink-2);
  font-weight:600;
  padding:6px 0;
}
.nav-main a::after{
  content:"";
  position:absolute;
  left:0;bottom:0;
  width:0;height:2px;
  background:var(--accent);
  transition:width .24s ease;
}
.nav-main a:hover{color:var(--brand-700);}
.nav-main a:hover::after{width:100%;}
.nav-main a.active{color:var(--brand-900);}
.nav-main a.active::after{width:100%;}
.btn-brand{
  display:inline-flex;
  align-items:center;
  gap:8px;
  min-height:46px;
  padding:11px 22px;
  border-radius:var(--radius-btn);
  background:var(--brand-700);
  color:#fff;
  font-size:15px;
  font-weight:600;
  border:1px solid var(--brand-700);
  transition:background .2s ease,border-color .2s ease,transform .2s ease,color .2s ease;
}
.btn-brand:hover,.btn-brand:focus{
  background:var(--brand-900);
  border-color:var(--brand-900);
  color:#fff;
}
.btn-brand .arw{transition:transform .2s ease;display:inline-block;}
.btn-brand:hover .arw{transform:translateX(4px);}
.btn-brand:active{transform:none;}
.btn-ghost{
  display:inline-flex;
  align-items:center;
  gap:8px;
  min-height:46px;
  padding:11px 22px;
  border-radius:var(--radius-btn);
  background:transparent;
  color:var(--brand-700);
  font-size:15px;
  font-weight:600;
  border:1px solid var(--mist);
  transition:border-color .2s ease,color .2s ease,background .2s ease;
}
.btn-ghost:hover{border-color:var(--brand-500);color:var(--brand-900);background:#fff;}
.nav-cta{white-space:nowrap;}
.navbar-toggler{
  border:1px solid var(--mist);
  border-radius:10px;
  padding:9px 11px;
  background:#fff;
  box-shadow:none!important;
}
.navbar-toggler:focus{box-shadow:none;}
.toggler-bars{
  display:block;
  width:20px;height:2px;
  background:var(--brand-700);
  position:relative;
}
.toggler-bars::before,.toggler-bars::after{
  content:"";position:absolute;left:0;width:20px;height:2px;background:var(--brand-700);
}
.toggler-bars::before{top:-6px;}
.toggler-bars::after{top:6px;}

/* ===== Hero ===== */
.page-hero{
  position:relative;
  padding:72px 0 88px;
  background-image:linear-gradient(105deg,rgba(248,246,242,.96) 0%,rgba(248,246,242,.88) 46%,rgba(12,46,41,.62) 100%),url('/assets/images/backpic/back-2.webp');
  background-size:cover;
  background-position:center;
  border-bottom:1px solid var(--mist);
}
.crumb{
  font-size:13px;
  color:var(--ink-3);
  margin-bottom:18px;
  letter-spacing:.02em;
}
.crumb a{color:var(--ink-3);}
.crumb a:hover{color:var(--brand-500);}
.badge-soft{
  display:inline-flex;
  align-items:center;
  gap:6px;
  padding:5px 14px;
  border-radius:999px;
  background:rgba(28,107,95,.1);
  border:1px solid rgba(28,107,95,.22);
  color:var(--brand-700);
  font-size:13px;
  font-weight:600;
  letter-spacing:.02em;
  margin-bottom:18px;
}
.page-hero h1{
  font-size:clamp(2.2rem,4.4vw,3.5rem);
  line-height:1.15;
  font-weight:800;
  letter-spacing:-.02em;
  margin-bottom:20px;
  max-width:15em;
}
.page-hero .lead{
  font-size:17px;
  color:var(--ink-2);
  max-width:34em;
  margin-bottom:16px;
}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:26px;}
.hero-figure{
  position:relative;
  border:1px solid var(--mist);
  border-radius:var(--radius-img);
  overflow:hidden;
  box-shadow:var(--shadow-2);
  background:#fff;
}
.hero-figure img{width:100%;height:100%;object-fit:cover;aspect-ratio:4/3;}
.hero-tag{
  position:absolute;
  left:18px;bottom:18px;
  background:rgba(12,46,41,.88);
  color:#fff;
  border-radius:999px;
  padding:7px 16px;
  font-size:13px;
  letter-spacing:.02em;
  backdrop-filter:blur(4px);
}
.hero-tag b{font-family:var(--font-mono);color:var(--accent);font-weight:800;}

/* ===== Sections ===== */
.section{padding:var(--sec-gap) 0;}
.section-sand{background:var(--sand);}
.section-white{background:#fff;border-top:1px solid var(--mist);border-bottom:1px solid var(--mist);}
.section-head{
  display:flex;
  align-items:flex-end;
  justify-content:space-between;
  gap:24px;
  margin-bottom:44px;
  flex-wrap:wrap;
}
.sec-no{
  font-family:var(--font-mono);
  font-size:13px;
  font-weight:800;
  color:var(--brand-500);
  letter-spacing:.14em;
  display:block;
  margin-bottom:10px;
}
.section-head h2{
  font-size:clamp(1.6rem,2.6vw,2.2rem);
  font-weight:800;
  line-height:1.25;
}
.section-head .sub{
  color:var(--ink-2);
  font-size:15px;
  margin-top:10px;
  max-width:44em;
}
.link-more{
  font-size:15px;
  font-weight:600;
  color:var(--brand-700);
  border-bottom:1px solid transparent;
  white-space:nowrap;
}
.link-more::after{content:" →";}
.link-more:hover{color:var(--brand-900);border-bottom-color:var(--accent);}

/* ===== Stats ===== */
.stat-row{
  display:grid;
  grid-template-columns:repeat(3,1fr);
  border:1px solid var(--mist);
  border-radius:var(--radius-card);
  background:var(--card);
  overflow:hidden;
}
.stat-cell{
  padding:32px 28px;
  border-right:1px solid var(--mist);
}
.stat-cell:last-child{border-right:0;}
.stat-num{
  font-family:var(--font-mono);
  font-variant-numeric:tabular-nums;
  font-size:clamp(2.4rem,5vw,3.6rem);
  font-weight:800;
  line-height:1;
  color:var(--brand-900);
  letter-spacing:-.02em;
}
.stat-num .unit{font-size:.42em;color:var(--brand-500);margin-left:4px;}
.stat-label{
  display:block;
  margin-top:14px;
  font-size:14px;
  color:var(--ink-2);
}

/* ===== Flow rows ===== */
.flow-row{
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:56px;
  align-items:center;
  padding:44px 0;
  border-bottom:1px dashed var(--mist);
}
.flow-row:last-child{border-bottom:0;padding-bottom:0;}
.flow-row:first-child{padding-top:0;}
.flow-text .step-idx{
  font-family:var(--font-mono);
  font-size:13px;
  color:var(--brand-500);
  font-weight:800;
  letter-spacing:.12em;
  display:block;
  margin-bottom:12px;
}
.flow-text h3{
  font-size:clamp(1.15rem,1.8vw,1.5rem);
  font-weight:800;
  margin-bottom:14px;
  line-height:1.35;
}
.flow-text p{color:var(--ink-2);font-size:15.5px;margin-bottom:14px;}
.flow-figure{
  border:1px solid var(--mist);
  border-radius:var(--radius-img);
  overflow:hidden;
  background:#fff;
  box-shadow:var(--shadow-1);
}
.flow-figure img{width:100%;aspect-ratio:16/11;object-fit:cover;}
.flow-row.reverse .flow-figure{order:-1;}
.check-list li{
  position:relative;
  padding-left:26px;
  margin-bottom:10px;
  font-size:15px;
  color:var(--ink-2);
}
.check-list li::before{
  content:"";
  position:absolute;
  left:0;top:10px;
  width:12px;height:2px;
  background:var(--accent);
}
.chip-row{display:flex;flex-wrap:wrap;gap:8px;margin-top:16px;}
.chip{
  display:inline-block;
  padding:5px 13px;
  border-radius:999px;
  border:1px solid var(--mist);
  background:#fff;
  font-size:13px;
  color:var(--ink-2);
}

/* ===== Trouble cards ===== */
.trouble-grid{
  display:grid;
  grid-template-columns:repeat(4,1fr);
  gap:24px;
}
.t-card{
  background:var(--card);
  border:1px solid var(--mist);
  border-radius:var(--radius-card);
  padding:26px 24px;
  box-shadow:var(--shadow-1);
  transition:transform .24s ease,box-shadow .24s ease,border-color .24s ease;
  display:flex;
  flex-direction:column;
  height:100%;
}
.t-card:hover{
  transform:translateY(-2px);
  box-shadow:var(--shadow-2);
  border-color:rgba(28,107,95,.4);
}
.t-card .t-idx{
  font-family:var(--font-mono);
  font-size:12px;
  font-weight:800;
  letter-spacing:.14em;
  color:var(--brand-500);
  margin-bottom:14px;
}
.t-card h3{font-size:16px;font-weight:800;margin-bottom:10px;line-height:1.45;}
.t-card p{font-size:14.5px;color:var(--ink-2);margin-bottom:0;}
.t-card .t-solve{
  margin-top:16px;
  padding-top:14px;
  border-top:1px solid var(--mist);
  font-size:13.5px;
  color:var(--ink-3);
}
.t-card .t-solve b{color:var(--brand-700);font-weight:600;}

/* ===== Accordion ===== */
.acc-wrap{max-width:920px;margin:0 auto;}
.accordion-item{
  border:0;
  border-bottom:1px solid var(--mist);
  background:transparent;
}
.accordion-button{
  background:transparent!important;
  box-shadow:none!important;
  font-size:18px;
  font-weight:600;
  color:var(--ink);
  padding:24px 44px 24px 0;
  line-height:1.5;
}
.accordion-button::after{display:none;}
.accordion-button .pm{
  position:absolute;
  right:6px;top:50%;
  transform:translateY(-50%);
  font-family:var(--font-mono);
  font-size:20px;
  color:var(--brand-500);
  font-weight:600;
  transition:color .2s ease;
}
.accordion-button:not(.collapsed) .pm{color:var(--brand-900);}
.accordion-button:hover{color:var(--brand-700);}
.accordion-body{
  padding:0 60px 26px 0;
  color:var(--ink-2);
  font-size:15.5px;
  line-height:1.85;
}
.accordion-collapse{transition:height .28s ease;}

/* ===== CTA / Form ===== */
.cta-block{
  background:var(--brand-900);
  color:#E9EFEC;
  border-radius:20px;
  padding:56px 48px;
}
.cta-block h2{color:#fff;font-size:clamp(1.5rem,2.4vw,2rem);font-weight:800;margin-bottom:16px;}
.cta-block p{color:rgba(233,239,236,.78);font-size:15.5px;}
.cta-points li{
  position:relative;
  padding-left:24px;
  margin-bottom:12px;
  font-size:15px;
  color:rgba(233,239,236,.86);
}
.cta-points li::before{
  content:"";
  position:absolute;left:0;top:11px;
  width:12px;height:2px;background:var(--accent);
}
.form-card{
  background:#fff;
  border-radius:var(--radius-card);
  padding:32px 30px;
  box-shadow:var(--shadow-2);
}
.form-label{
  font-size:14px;
  font-weight:600;
  color:var(--ink);
  margin-bottom:8px;
}
.form-control,.form-select{
  border-radius:var(--radius-input);
  border:1px solid var(--mist);
  padding:12px 14px;
  font-size:15px;
  color:var(--ink);
  background:#fff;
  box-shadow:none;
  transition:border-color .2s ease,box-shadow .2s ease;
}
.form-control:focus,.form-select:focus{
  border-color:var(--brand-500);
  box-shadow:0 0 0 3px rgba(168,230,58,.2);
  outline:none;
}
.form-control::placeholder{color:var(--ink-3);}
.form-check-input{border-color:var(--mist);}
.form-check-input:checked{background-color:var(--brand-700);border-color:var(--brand-700);}
.form-check-input:focus{box-shadow:0 0 0 3px rgba(168,230,58,.2);border-color:var(--brand-500);}
.form-check-label{font-size:13.5px;color:var(--ink-2);}
.alert-tip{
  border-radius:var(--radius-input);
  font-size:14.5px;
  padding:12px 16px;
  margin-bottom:20px;
  border:1px solid transparent;
}
.alert-ok{background:rgba(46,158,107,.1);border-color:rgba(46,158,107,.32);color:#1E6B49;}
.alert-err{background:rgba(194,84,60,.08);border-color:rgba(194,84,60,.32);color:#9A3F2B;}
.back-home{
  display:inline-flex;
  align-items:center;
  gap:8px;
  font-size:15px;
  font-weight:600;
  color:var(--brand-700);
  border-bottom:1px solid transparent;
  padding-bottom:2px;
}
.back-home:hover{color:var(--brand-900);border-bottom-color:var(--accent);}

/* ===== Footer ===== */
.site-footer{
  background:var(--brand-900);
  color:rgba(233,239,236,.76);
  padding:64px 0 28px;
  margin-top:0;
  font-size:14.5px;
}
.footer-grid{
  display:grid;
  grid-template-columns:1.6fr 1fr 1fr 1.2fr;
  gap:40px;
  padding-bottom:40px;
  border-bottom:1px solid rgba(216,227,223,.16);
}
.footer-brand{display:flex;align-items:center;gap:12px;margin-bottom:18px;}
.footer-brand .brand-text{color:#fff;}
.site-footer p{color:rgba(233,239,236,.7);font-size:14px;line-height:1.8;margin-bottom:0;max-width:32em;}
.footer-col h4{
  color:#fff;
  font-size:15px;
  font-weight:800;
  margin-bottom:18px;
  letter-spacing:.02em;
}
.footer-col ul li{margin-bottom:11px;}
.footer-col ul a{color:rgba(233,239,236,.72);font-size:14.5px;}
.footer-col ul a:hover{color:var(--accent);}
.footer-contact li{display:flex;gap:12px;margin-bottom:12px;font-size:14px;}
.fc-k{color:rgba(233,239,236,.48);flex:0 0 42px;}
.footer-bottom{
  display:flex;
  justify-content:space-between;
  flex-wrap:wrap;
  gap:12px;
  padding-top:22px;
  font-size:13px;
  color:rgba(233,239,236,.56);
}

/* ===== Responsive ===== */
@media (max-width:1199.98px){
  :root{--sec-gap:72px;}
  .trouble-grid{grid-template-columns:repeat(2,1fr);}
  .flow-row{gap:40px;}
}
@media (max-width:991.98px){
  :root{--sec-gap:64px;}
  .nav-shell{min-height:68px;flex-wrap:wrap;}
  .nav-main{
    flex-direction:column;
    align-items:flex-start;
    gap:0;
    margin:0;
    width:100%;
  }
  .nav-main li{width:100%;border-bottom:1px solid var(--mist);}
  .nav-main a{display:block;padding:14px 0;font-size:16px;}
  .nav-main a::after{display:none;}
  .nav-main a.active{color:var(--brand-500);}
  .navbar-collapse{
    background:#fff;
    border:1px solid var(--mist);
    border-radius:var(--radius-card);
    padding:8px 18px 18px;
    margin-top:12px;
    box-shadow:var(--shadow-2);
    flex-basis:100%;
  }
  .nav-cta{width:100%;justify-content:center;margin-top:16px;}
  .page-hero{padding:52px 0 64px;}
  .page-hero h1{max-width:100%;}
  .flow-row{grid-template-columns:1fr;gap:28px;padding:36px 0;}
  .flow-row.reverse .flow-figure{order:0;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
  .cta-block{padding:40px 28px;}
}
@media (max-width:767.98px){
  .container{padding-left:16px;padding-right:16px;}
  .stat-row{grid-template-columns:1fr;}
  .stat-cell{border-right:0;border-bottom:1px solid var(--mist);}
  .stat-cell:last-child{border-bottom:0;}
  .section-head{margin-bottom:32px;}
  .hero-actions .btn-brand,.hero-actions .btn-ghost{width:100%;justify-content:center;}
  .accordion-button{font-size:16.5px;padding:20px 38px 20px 0;}
  .accordion-body{padding:0 24px 22px 0;}
  .footer-grid{grid-template-columns:1fr;}
  .footer-bottom{flex-direction:column;}
}
@media (max-width:575.98px){
  :root{--sec-gap:56px;}
  .trouble-grid{grid-template-columns:1fr;}
  .form-card{padding:24px 20px;}
  .cta-block{border-radius:16px;padding:32px 20px;}
}
@media (prefers-reduced-motion:reduce){
  *{transition:none!important;animation:none!important;scroll-behavior:auto!important;}
}

/* roulang page: category2 */
:root{
  --brand-900:#0C2E29;
  --brand-700:#10403A;
  --brand-500:#1C6B5F;
  --accent:#A8E63A;
  --sand:#EFE9DF;
  --mist:#D8E3DF;
  --bg:#F8F6F2;
  --card:#FFFFFF;
  --ink:#101613;
  --ink-2:#566058;
  --ink-3:#8A948D;
  --line:#E4E1DA;
  --pos:#2E9E6B;
  --neg:#C2543C;
  --r-card:14px;
  --r-btn:10px;
  --r-img:16px;
  --r-input:10px;
  --sh-1:0 1px 2px rgba(16,22,19,.05);
  --sh-2:0 12px 32px -16px rgba(16,22,19,.18);
  --mono:"JetBrains Mono",ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;
  --sans:-apple-system,"PingFang SC","HarmonyOS Sans","Noto Sans SC","Microsoft YaHei",sans-serif;
}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  background:var(--bg);
  color:var(--ink);
  font-family:var(--sans);
  font-size:16px;
  line-height:1.75;
  font-weight:400;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block}
a{color:var(--brand-700);text-decoration:none;transition:color .2s ease}
a:hover{color:var(--brand-900)}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4{margin:0;font-weight:800;color:var(--ink);line-height:1.25}
p{margin:0}
button{font-family:inherit}
:focus-visible{outline:2px solid var(--brand-500);outline-offset:2px}

.container{
  width:100%;
  max-width:1200px;
  margin:0 auto;
  padding-left:24px;
  padding-right:24px;
}
@media (max-width:767.98px){
  .container{padding-left:16px;padding-right:16px}
}

/* ---------- header / nav ---------- */
.site-header{
  position:sticky;
  top:0;
  z-index:1030;
  background:rgba(248,246,242,.86);
  transition:background .3s ease,box-shadow .3s ease,border-color .3s ease;
  border-bottom:1px solid transparent;
}
.site-header.is-scrolled{
  background:rgba(248,246,242,.97);
  border-bottom:1px solid var(--line);
  box-shadow:var(--sh-1);
}
.nav-shell{
  display:flex;
  align-items:center;
  gap:24px;
  padding:14px 0;
  width:100%;
}
.brand{
  display:flex;
  align-items:center;
  gap:12px;
  text-decoration:none;
}
.brand-mark{
  width:40px;
  height:40px;
  flex:0 0 40px;
  border-radius:12px;
  background:var(--brand-900);
  color:var(--accent);
  font-family:var(--mono);
  font-weight:700;
  font-size:19px;
  display:flex;
  align-items:center;
  justify-content:center;
  letter-spacing:0;
}
.brand-text{
  display:block;
  font-size:18px;
  font-weight:800;
  color:var(--ink);
  line-height:1.2;
  letter-spacing:.01em;
}
.brand-sub{
  display:block;
  font-size:11px;
  color:var(--ink-3);
  letter-spacing:.06em;
  line-height:1.6;
}
.navbar-toggler{
  margin-left:auto;
  border:1px solid var(--line);
  background:#fff;
  border-radius:10px;
  padding:10px 12px;
  box-shadow:none;
}
.navbar-toggler:focus{box-shadow:none;outline:2px solid var(--brand-500);outline-offset:2px}
.toggler-bars{
  display:block;
  position:relative;
  width:20px;
  height:2px;
  border-radius:2px;
  background:var(--brand-900);
}
.toggler-bars::before,
.toggler-bars::after{
  content:"";
  position:absolute;
  left:0;
  width:20px;
  height:2px;
  border-radius:2px;
  background:var(--brand-900);
}
.toggler-bars::before{top:-6px}
.toggler-bars::after{top:6px}
.nav-main{
  display:flex;
  align-items:center;
  gap:28px;
}
.nav-main a{
  display:block;
  position:relative;
  font-size:15px;
  letter-spacing:.01em;
  color:var(--ink-2);
  padding:6px 0;
  text-decoration:none;
}
.nav-main a:hover{color:var(--brand-700)}
.nav-main a.active{
  color:var(--brand-900);
  font-weight:600;
}
.nav-main a.active::after{
  content:"";
  position:absolute;
  left:0;
  right:0;
  bottom:-4px;
  height:2px;
  border-radius:2px;
  background:var(--accent);
}
.nav-cta{margin-left:8px}
@media (min-width:992px){
  .navbar-collapse{
    display:flex !important;
    justify-content:flex-end;
    align-items:center;
    gap:28px;
  }
}
@media (max-width:991.98px){
  .navbar-collapse{
    background:#fff;
    border:1px solid var(--line);
    border-radius:var(--r-card);
    padding:16px;
    margin-top:12px;
    box-shadow:var(--sh-2);
  }
  .nav-main{flex-direction:column;align-items:stretch;gap:2px}
  .nav-main a{padding:12px 4px;font-size:16px}
  .nav-main a.active::after{display:none}
  .nav-cta{width:100%;margin:14px 0 0;justify-content:center}
  .brand-sub{display:none}
}

/* ---------- buttons ---------- */
.btn-brand,
.btn-ghost{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  min-height:46px;
  padding:0 22px;
  border-radius:var(--r-btn);
  font-size:15px;
  font-weight:600;
  letter-spacing:.01em;
  border:1px solid transparent;
  text-decoration:none;
  cursor:pointer;
  transition:background .22s ease,border-color .22s ease,transform .22s ease,color .22s ease;
}
.btn-brand{
  background:var(--brand-700);
  color:#fff;
  box-shadow:var(--sh-1);
}
.btn-brand:hover{background:var(--brand-900);color:#fff}
.btn-brand:active{background:var(--brand-900);transform:none}
.btn-ghost{
  background:transparent;
  border-color:var(--mist);
  color:var(--brand-900);
}
.btn-ghost:hover{border-color:var(--brand-500);background:rgba(255,255,255,.7);color:var(--brand-900)}
.btn-arrow{display:inline-block;transition:transform .22s ease}
.btn-brand:hover .btn-arrow,
.btn-ghost:hover .btn-arrow{transform:translateX(4px)}
.btn-sm{min-height:42px;padding:0 18px;font-size:14px}

/* ---------- hero ---------- */
.hero{
  position:relative;
  overflow:hidden;
  padding:64px 0 60px;
}
.hero::before{
  content:"";
  position:absolute;
  inset:0;
  background:url("/assets/images/backpic/back-2.webp") center right/cover no-repeat;
  opacity:.15;
}
.hero::after{
  content:"";
  position:absolute;
  inset:0;
  background:linear-gradient(90deg,rgba(248,246,242,.97) 0%,rgba(248,246,242,.8) 52%,rgba(248,246,242,.35) 100%);
}
.hero .container{position:relative;z-index:2}
.hero-grid{
  display:grid;
  grid-template-columns:1.08fr .92fr;
  gap:56px;
  align-items:center;
}
.eyebrow{
  display:inline-flex;
  align-items:center;
  gap:8px;
  padding:6px 14px;
  border-radius:999px;
  border:1px solid var(--mist);
  background:rgba(255,255,255,.75);
  font-size:13px;
  font-weight:600;
  color:var(--brand-700);
  letter-spacing:.02em;
}
.eyebrow::before{
  content:"";
  width:6px;
  height:6px;
  border-radius:50%;
  background:var(--accent);
}
.hero h1{
  margin-top:20px;
  font-size:clamp(2.2rem,4.4vw,3.5rem);
  line-height:1.15;
  letter-spacing:-.02em;
}
.hero-sub{
  margin-top:20px;
  max-width:56ch;
  font-size:17px;
  line-height:1.8;
  color:var(--ink-2);
}
.hero-actions{
  margin-top:32px;
  display:flex;
  flex-wrap:wrap;
  gap:14px;
}
.hero-note{
  margin-top:24px;
  display:flex;
  flex-wrap:wrap;
  gap:20px;
  font-size:13.5px;
  color:var(--ink-3);
}
.hero-note span{display:inline-flex;align-items:center;gap:8px}
.hero-note span::before{
  content:"";
  width:14px;
  height:1px;
  background:var(--brand-500);
}
.hero-media{
  position:relative;
  border:1px solid var(--mist);
  border-radius:var(--r-img);
  overflow:hidden;
  box-shadow:var(--sh-2);
  background:#fff;
}
.hero-media img{
  width:100%;
  aspect-ratio:4/3;
  object-fit:cover;
}
.hero-tag{
  position:absolute;
  left:16px;
  bottom:16px;
  display:inline-flex;
  align-items:center;
  gap:10px;
  padding:9px 16px;
  border-radius:999px;
  background:rgba(255,255,255,.95);
  border:1px solid var(--mist);
  font-size:13px;
  font-weight:600;
  color:var(--brand-900);
  box-shadow:var(--sh-1);
}
.hero-tag i{
  width:8px;
  height:8px;
  border-radius:50%;
  background:var(--accent);
  display:inline-block;
}
@media (max-width:991.98px){
  .hero{padding:48px 0 44px}
  .hero-grid{grid-template-columns:1fr;gap:36px}
  .hero-sub{font-size:16px}
}

/* ---------- sections ---------- */
.section{padding:96px 0}
.section-alt{background:var(--sand)}
.section-tight{padding-top:0}
.sec-head{
  display:flex;
  align-items:flex-end;
  justify-content:space-between;
  gap:32px;
  margin-bottom:40px;
}
.sec-index{
  font-family:var(--mono);
  font-size:13px;
  font-weight:700;
  letter-spacing:.14em;
  color:var(--brand-500);
  text-transform:uppercase;
}
.sec-index::before{
  content:"";
  display:inline-block;
  width:22px;
  height:2px;
  margin-right:10px;
  vertical-align:middle;
  background:var(--accent);
  border-radius:2px;
}
.sec-title{
  margin-top:12px;
  font-size:clamp(1.6rem,2.6vw,2.2rem);
  letter-spacing:-.01em;
}
.sec-desc{
  margin-top:14px;
  max-width:64ch;
  color:var(--ink-2);
  font-size:15.5px;
}
.link-arrow{
  position:relative;
  display:inline-flex;
  align-items:center;
  gap:6px;
  flex:0 0 auto;
  font-size:14px;
  font-weight:600;
  color:var(--brand-700);
  white-space:nowrap;
  padding-bottom:3px;
}
.link-arrow::after{
  content:"";
  position:absolute;
  left:0;
  bottom:0;
  height:1px;
  width:0;
  background:var(--accent);
  transition:width .24s ease;
}
.link-arrow:hover::after{width:100%}
@media (max-width:991.98px){
  .section{padding:72px 0}
}
@media (max-width:767.98px){
  .section{padding:56px 0}
  .sec-head{flex-direction:column;align-items:flex-start;gap:18px;margin-bottom:28px}
}

/* ---------- metric strip ---------- */
.metric-strip{
  display:grid;
  grid-template-columns:repeat(4,1fr);
  gap:1px;
  background:var(--line);
  border:1px solid var(--line);
  border-radius:var(--r-card);
  overflow:hidden;
  box-shadow:var(--sh-1);
}
.metric{
  background:var(--card);
  padding:30px 24px;
}
.metric-num{
  font-family:var(--mono);
  font-size:clamp(2.4rem,5vw,3.6rem);
  font-weight:700;
  line-height:1;
  color:var(--brand-900);
  font-variant-numeric:tabular-nums;
  letter-spacing:-.03em;
}
.metric-unit{
  font-size:14px;
  font-weight:600;
  color:var(--brand-500);
  margin-left:8px;
  font-family:var(--sans);
}
.metric-label{
  margin-top:14px;
  font-size:14.5px;
  font-weight:600;
  color:var(--ink);
}
.metric-text{
  margin-top:6px;
  font-size:13.5px;
  color:var(--ink-3);
  line-height:1.6;
}
@media (max-width:991.98px){
  .metric-strip{grid-template-columns:repeat(2,1fr)}
}
@media (max-width:575.98px){
  .metric-strip{grid-template-columns:1fr}
  .metric{padding:24px 20px}
}

/* ---------- entry list ---------- */
.entry-list{display:grid;gap:14px}
.entry{
  display:grid;
  grid-template-columns:64px 1fr auto;
  gap:24px;
  align-items:start;
  padding:26px 26px;
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--r-card);
  box-shadow:var(--sh-1);
  transition:transform .24s ease,box-shadow .24s ease,border-color .24s ease;
}
.entry:hover{
  transform:translateY(-2px);
  box-shadow:var(--sh-2);
  border-color:rgba(28,107,95,.4);
}
.entry-no{
  font-family:var(--mono);
  font-size:20px;
  font-weight:700;
  color:var(--brand-500);
  line-height:1.3;
  padding-top:2px;
  border-bottom:2px solid var(--accent);
  width:38px;
}
.entry h3{
  font-size:17px;
  font-weight:600;
  letter-spacing:.01em;
}
.entry p{
  margin-top:8px;
  font-size:14.5px;
  color:var(--ink-2);
  line-height:1.75;
}
.entry-fix{
  margin-top:10px;
  display:inline-flex;
  align-items:center;
  gap:8px;
  font-size:13.5px;
  color:var(--brand-700);
}
.entry-fix::before{
  content:"";
  width:6px;
  height:6px;
  border-radius:2px;
  background:var(--brand-500);
}
.tag{
  flex:0 0 auto;
  display:inline-flex;
  align-items:center;
  padding:5px 12px;
  border-radius:999px;
  border:1px solid var(--mist);
  background:var(--sand);
  color:var(--ink-2);
  font-size:12px;
  font-weight:600;
  white-space:nowrap;
}
.tag-accent{
  border-color:rgba(168,230,58,.75);
  background:rgba(168,230,58,.2);
  color:#3B5A12;
}
.tag-warn{
  border-color:rgba(194,84,60,.28);
  background:rgba(194,84,60,.08);
  color:var(--neg);
}
@media (max-width:767.98px){
  .entry{grid-template-columns:46px 1fr;gap:16px;padding:20px 18px}
  .entry .tag{grid-column:2;justify-self:start}
  .entry-no{font-size:17px;width:32px}
}

/* ---------- compare table ---------- */
.table-scroll{
  overflow-x:auto;
  -webkit-overflow-scrolling:touch;
  border:1px solid var(--line);
  border-radius:var(--r-card);
  background:var(--card);
  box-shadow:var(--sh-1);
}
.cmp-table{
  width:100%;
  min-width:800px;
  border-collapse:collapse;
  font-size:14.5px;
}
.cmp-table th{
  text-align:left;
  padding:18px 20px;
  background:rgba(216,227,223,.45);
  color:var(--brand-900);
  font-weight:600;
  font-size:14px;
  letter-spacing:.02em;
  border-bottom:1px solid var(--line);
  white-space:nowrap;
}
.cmp-table td{
  padding:18px 20px;
  border-bottom:1px solid var(--line);
  color:var(--ink-2);
  vertical-align:top;
  line-height:1.7;
}
.cmp-table td:first-child{
  color:var(--ink);
  font-weight:600;
}
.cmp-table tbody tr:last-child td{border-bottom:none}
.cmp-table tbody tr:hover{background:rgba(239,233,223,.45)}
.cmp-table .state-ok{color:var(--pos);font-weight:600}
.table-hint{
  margin-top:12px;
  font-size:13px;
  color:var(--ink-3);
  display:none;
}
@media (max-width:767.98px){
  .table-hint{display:block}
}

/* ---------- grid cards ---------- */
.grid-4{
  display:grid;
  grid-template-columns:repeat(4,1fr);
  gap:24px;
}
.grid-3{
  display:grid;
  grid-template-columns:repeat(3,1fr);
  gap:24px;
}
.feature{
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--r-card);
  padding:28px 24px;
  box-shadow:var(--sh-1);
  transition:transform .24s ease,box-shadow .24s ease,border-color .24s ease;
}
.feature:hover{
  transform:translateY(-2px);
  box-shadow:var(--sh-2);
  border-color:rgba(28,107,95,.4);
}
.feature-no{
  font-family:var(--mono);
  font-size:13px;
  font-weight:700;
  letter-spacing:.14em;
  color:var(--brand-500);
}
.feature h3{
  margin-top:16px;
  font-size:17px;
  font-weight:600;
}
.feature p{
  margin-top:10px;
  font-size:14.5px;
  color:var(--ink-2);
  line-height:1.75;
}
.feature-line{
  margin-top:20px;
  height:2px;
  width:40px;
  background:var(--accent);
  border-radius:2px;
}
@media (max-width:991.98px){
  .grid-4{grid-template-columns:repeat(2,1fr)}
  .grid-3{grid-template-columns:1fr}
}
@media (max-width:575.98px){
  .grid-4{grid-template-columns:1fr}
}

/* ---------- audience split ---------- */
.split{
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:56px;
  align-items:center;
}
.split-media{
  border:1px solid var(--mist);
  border-radius:var(--r-img);
  overflow:hidden;
  background:#fff;
  box-shadow:var(--sh-1);
}
.split-media img{width:100%;aspect-ratio:5/4;object-fit:cover}
.check-list{display:grid;gap:22px;margin-top:28px}
.check-list li{
  display:grid;
  grid-template-columns:26px 1fr;
  gap:16px;
  align-items:start;
}
.check-list .ck{
  margin-top:5px;
  width:22px;
  height:22px;
  border-radius:7px;
  background:rgba(28,107,95,.1);
  border:1px solid rgba(28,107,95,.28);
  position:relative;
}
.check-list .ck::after{
  content:"";
  position:absolute;
  left:7px;
  top:4px;
  width:6px;
  height:10px;
  border-right:2px solid var(--brand-500);
  border-bottom:2px solid var(--brand-500);
  transform:rotate(42deg);
}
.check-list h3{font-size:16.5px;font-weight:600}
.check-list p{margin-top:6px;font-size:14.5px;color:var(--ink-2);line-height:1.75}
@media (max-width:991.98px){
  .split{grid-template-columns:1fr;gap:36px}
}

/* ---------- faq ---------- */
.faq-acc .accordion-item{
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--r-card);
  margin-bottom:12px;
  overflow:hidden;
  box-shadow:var(--sh-1);
}
.faq-acc .accordion-item:last-child{margin-bottom:0}
.faq-acc .accordion-button{
  display:flex;
  align-items:center;
  gap:16px;
  width:100%;
  padding:22px 24px;
  font-size:18px;
  font-weight:600;
  color:var(--ink);
  background:var(--card);
  box-shadow:none !important;
  border:0;
}
.faq-acc .accordion-button:not(.collapsed){
  color:var(--brand-900);
  background:rgba(216,227,223,.32);
}
.faq-acc .accordion-button::after{display:none}
.faq-acc .accordion-body{
  padding:4px 24px 24px;
  font-size:15px;
  color:var(--ink-2);
  line-height:1.85;
  border-top:1px solid var(--line);
  padding-top:18px;
  margin-top:0;
}
.faq-sign{
  position:relative;
  flex:0 0 18px;
  width:18px;
  height:18px;
  margin-left:auto;
}
.faq-sign::before,
.faq-sign::after{
  content:"";
  position:absolute;
  background:var(--brand-700);
  border-radius:2px;
}
.faq-sign::before{left:0;top:8px;width:18px;height:2px}
.faq-sign::after{
  left:8px;top:0;width:2px;height:18px;
  transition:transform .28s ease;
}
.accordion-button:not(.collapsed) .faq-sign::after{transform:scaleY(0)}
.faq-acc .collapsing{transition:height .28s ease}
@media (max-width:575.98px){
  .faq-acc .accordion-button{font-size:16px;padding:18px 18px}
  .faq-acc .accordion-body{padding:16px 18px 20px}
}

/* ---------- cta / form ---------- */
.cta-wrap{
  display:grid;
  grid-template-columns:5fr 7fr;
  gap:48px;
  align-items:start;
}
.cta-points{display:grid;gap:20px;margin-top:28px}
.cta-points li{
  display:grid;
  grid-template-columns:22px 1fr;
  gap:14px;
  font-size:15px;
  color:var(--ink-2);
}
.cta-points .dot{
  margin-top:9px;
  width:10px;
  height:10px;
  border-radius:50%;
  border:2px solid var(--brand-500);
}
.cta-contact{
  margin-top:32px;
  padding:22px;
  border:1px solid var(--line);
  border-radius:var(--r-card);
  background:rgba(255,255,255,.72);
}
.cta-contact dl{margin:0;display:grid;gap:12px}
.cta-contact div{display:flex;gap:14px;font-size:14px}
.cta-contact dt{flex:0 0 46px;color:var(--ink-3);font-weight:400}
.cta-contact dd{margin:0;color:var(--ink);font-weight:600}
.form-card{
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--r-card);
  padding:32px;
  box-shadow:var(--sh-2);
}
.form-card h3{font-size:19px;font-weight:600}
.form-card .form-intro{
  margin-top:8px;
  font-size:14px;
  color:var(--ink-3);
}
.form-row{margin-top:22px}
.f-label{
  display:block;
  margin-bottom:8px;
  font-size:14px;
  font-weight:600;
  color:var(--ink);
}
.form-control{
  width:100%;
  padding:12px 14px;
  font-size:15px;
  color:var(--ink);
  background:#fff;
  border:1px solid var(--line);
  border-radius:var(--r-input);
  box-shadow:none;
  transition:border-color .2s ease,box-shadow .2s ease;
  font-family:inherit;
}
.form-control::placeholder{color:var(--ink-3)}
.form-control:focus{
  border-color:var(--brand-500);
  box-shadow:0 0 0 3px rgba(168,230,58,.25);
  outline:none;
}
.form-actions{
  margin-top:26px;
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:16px;
}
.form-note{
  margin-top:16px;
  font-size:13px;
  color:var(--ink-3);
  line-height:1.7;
}
.form-feedback{
  margin-top:16px;
  display:none;
  padding:12px 16px;
  border-radius:var(--r-input);
  border:1px solid rgba(46,158,107,.35);
  background:rgba(46,158,107,.08);
  color:#1F6B49;
  font-size:14px;
}
.form-feedback.is-on{display:block}
.back-home{
  margin-top:26px;
  display:inline-flex;
  align-items:center;
  gap:8px;
  font-size:14px;
  font-weight:600;
  color:var(--brand-700);
}
@media (max-width:991.98px){
  .cta-wrap{grid-template-columns:1fr;gap:36px}
}
@media (max-width:575.98px){
  .form-card{padding:22px}
  .form-actions .btn-brand{width:100%}
}

/* ---------- footer ---------- */
.site-footer{
  background:var(--brand-900);
  color:#C9D6D1;
  padding:72px 0 0;
  margin-top:0;
}
.footer-grid{
  display:grid;
  grid-template-columns:1.6fr 1fr 1fr 1.2fr;
  gap:40px;
  padding-bottom:48px;
}
.footer-brand{
  display:flex;
  align-items:center;
  gap:12px;
  margin-bottom:18px;
}
.footer-brand .brand-mark{
  background:rgba(255,255,255,.08);
  color:var(--accent);
}
.footer-brand .brand-text{color:#fff}
.site-footer p{
  font-size:14px;
  line-height:1.85;
  color:#A9BAB4;
  max-width:42ch;
}
.footer-col h4{
  font-size:14px;
  font-weight:600;
  color:#fff;
  letter-spacing:.04em;
  margin-bottom:18px;
}
.footer-col ul{display:grid;gap:12px}
.footer-col a{
  font-size:14px;
  color:#A9BAB4;
  text-decoration:none;
}
.footer-col a:hover{color:var(--accent)}
.footer-contact li{
  display:flex;
  gap:12px;
  font-size:14px;
  color:#A9BAB4;
}
.footer-contact .fc-k{
  flex:0 0 44px;
  color:#7E928C;
}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.1);
  padding:22px 0 26px;
  display:flex;
  flex-wrap:wrap;
  justify-content:space-between;
  gap:12px;
  font-size:13px;
  color:#8FA29C;
}
@media (max-width:991.98px){
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
}
@media (max-width:575.98px){
  .footer-grid{grid-template-columns:1fr}
  .site-footer{padding-top:52px}
}

/* ---------- motion ---------- */
.reveal{
  opacity:0;
  transform:translateY(12px);
  transition:opacity .6s ease,transform .6s ease;
}
.reveal.is-in{opacity:1;transform:none}
@media (prefers-reduced-motion:reduce){
  *{transition:none !important;animation:none !important}
  .reveal{opacity:1;transform:none}
}

/* roulang page: category3 */
:root{
  --brand-900:#0C2E29;
  --brand-700:#10403A;
  --brand-500:#1C6B5F;
  --accent:#A8E63A;
  --sand:#EFE9DF;
  --mist:#D8E3DF;
  --bg:#F8F6F2;
  --card:#FFFFFF;
  --ink:#101613;
  --ink-2:#566058;
  --ink-3:#8A948D;
  --pos:#2E9E6B;
  --neg:#C2543C;
  --r-card:14px;
  --r-btn:10px;
  --r-img:16px;
  --shadow-1:0 1px 2px rgba(16,22,19,.05);
  --shadow-2:0 12px 32px -16px rgba(16,22,19,.18);
  --mono:"JetBrains Mono",ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:-apple-system,"PingFang SC","HarmonyOS Sans","Noto Sans SC","Microsoft YaHei",sans-serif;
  font-size:16px;line-height:1.75;color:var(--ink);background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;height:auto}
a{color:var(--brand-700);text-decoration:none;transition:color .2s ease}
a:hover{color:var(--brand-500)}
button,input,select,textarea{font:inherit;color:inherit}
h1,h2,h3,h4{margin:0;font-weight:800;letter-spacing:-.01em;line-height:1.25}
p{margin:0}
ul{margin:0;padding:0;list-style:none}
:focus-visible{outline:2px solid var(--brand-500);outline-offset:2px}

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

/* ---------- header ---------- */
.site-header{
  position:sticky;top:0;z-index:1030;
  background:transparent;
  transition:background .25s ease,box-shadow .25s ease,border-color .25s ease;
  border-bottom:1px solid transparent;
}
.site-header.scrolled{
  background:rgba(248,246,242,.94);
  backdrop-filter:blur(10px);
  border-bottom:1px solid var(--mist);
  box-shadow:var(--shadow-1);
}
.nav-shell{display:flex;align-items:center;justify-content:space-between;min-height:78px;gap:16px}
.brand{display:flex;align-items:center;gap:12px;text-decoration:none}
.brand-mark{
  width:38px;height:38px;flex:0 0 38px;border-radius:11px;
  background:var(--brand-700);color:var(--accent);
  display:flex;align-items:center;justify-content:center;
  font-family:var(--mono);font-weight:700;font-size:18px;
}
.brand-text{display:block;font-size:16px;font-weight:800;color:var(--ink);letter-spacing:.01em;line-height:1.3}
.brand-sub{display:block;font-size:11.5px;color:var(--ink-3);letter-spacing:.02em;line-height:1.4}
.nav-main{display:flex;align-items:center;gap:28px;margin:0 0 0 auto}
.nav-main a{
  position:relative;display:inline-block;
  font-size:15px;color:var(--ink-2);letter-spacing:.01em;padding:6px 0;
}
.nav-main a::after{
  content:"";position:absolute;left:0;bottom:0;height:2px;width:0;
  background:var(--accent);transition:width .24s ease;
}
.nav-main a:hover{color:var(--brand-700)}
.nav-main a:hover::after,.nav-main a.active::after{width:100%}
.nav-main a.active{color:var(--brand-700);font-weight:600}
.nav-cta{
  margin-left:28px;display:inline-flex;align-items:center;gap:8px;
  background:var(--brand-700);color:#fff;border:1px solid var(--brand-700);
  border-radius:var(--r-btn);padding:11px 20px;font-size:14.5px;font-weight:600;
  min-height:44px;transition:background .2s ease,transform .2s ease,color .2s ease;
}
.nav-cta:hover{background:var(--brand-900);border-color:var(--brand-900);color:#fff}
.nav-cta:active{transform:translateY(0);background:var(--brand-900);color:#fff}
.navbar-toggler{
  border:1px solid var(--mist);background:var(--card);border-radius:10px;
  width:46px;height:42px;display:none;align-items:center;justify-content:center;
  box-shadow:var(--shadow-1);
}
.navbar-toggler:focus{box-shadow:0 0 0 3px rgba(168,230,58,.28);outline:none}
.toggler-bars{position:relative;width:20px;height:2px;background:var(--brand-700);display:block;border-radius:2px}
.toggler-bars::before,.toggler-bars::after{
  content:"";position:absolute;left:0;width:20px;height:2px;background:var(--brand-700);border-radius:2px;
}
.toggler-bars::before{top:-6px}
.toggler-bars::after{top:6px}

/* ---------- hero ---------- */
.hero{
  position:relative;
  padding:64px 0 84px;
  background:linear-gradient(180deg,rgba(248,246,242,.93),rgba(248,246,242,.99)),
             url('/assets/images/backpic/back-1.webp') center/cover no-repeat;
  border-bottom:1px solid var(--mist);
}
.hero-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:56px;align-items:center}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:12.5px;font-weight:600;letter-spacing:.08em;color:var(--brand-700);
  background:rgba(28,107,95,.08);border:1px solid rgba(28,107,95,.18);
  border-radius:999px;padding:6px 14px;
}
.eyebrow i{width:6px;height:6px;border-radius:50%;background:var(--accent);display:inline-block}
.hero h1{
  font-size:clamp(2.2rem,4.4vw,3.5rem);
  line-height:1.15;letter-spacing:-.02em;
  margin:22px 0 18px;color:var(--brand-900);
}
.hero-lead{font-size:17px;color:var(--ink-2);max-width:56ch}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:32px}
.btn-brand{
  display:inline-flex;align-items:center;gap:10px;
  background:var(--brand-700);color:#fff;border:1px solid var(--brand-700);
  border-radius:var(--r-btn);padding:13px 24px;font-size:15px;font-weight:600;
  min-height:46px;box-shadow:var(--shadow-1);
  transition:background .2s ease,border-color .2s ease,transform .2s ease;
}
.btn-brand:hover{background:var(--brand-900);border-color:var(--brand-900);color:#fff}
.btn-brand .arw{transition:transform .2s ease}
.btn-brand:hover .arw{transform:translateX(4px)}
.btn-ghost{
  display:inline-flex;align-items:center;gap:10px;
  background:transparent;color:var(--brand-700);border:1px solid rgba(28,107,95,.4);
  border-radius:var(--r-btn);padding:13px 24px;font-size:15px;font-weight:600;min-height:46px;
  transition:background .2s ease,border-color .2s ease,color .2s ease;
}
.btn-ghost:hover{background:rgba(28,107,95,.07);border-color:var(--brand-500);color:var(--brand-900)}
.hero-media{position:relative}
.hero-media img{
  width:100%;border-radius:var(--r-img);border:1px solid var(--mist);
  box-shadow:var(--shadow-2);object-fit:cover;aspect-ratio:4/3;
}
.hero-tag{
  position:absolute;left:-14px;bottom:26px;
  background:var(--card);border:1px solid var(--mist);border-radius:12px;
  padding:12px 16px;box-shadow:var(--shadow-2);min-width:170px;
}
.hero-tag .tag-k{font-size:12px;color:var(--ink-3);letter-spacing:.04em}
.hero-tag .tag-v{font-family:var(--mono);font-size:20px;font-weight:700;color:var(--brand-700);line-height:1.3}

/* ---------- section base ---------- */
.section{padding:92px 0}
.section.sand{background:var(--sand)}
.section.tight{padding:72px 0}
.sec-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:44px;flex-wrap:wrap}
.sec-no{font-family:var(--mono);font-size:13px;font-weight:700;color:var(--brand-500);letter-spacing:.12em}
.sec-title{font-size:clamp(1.6rem,2.6vw,2.2rem);margin-top:8px;color:var(--brand-900)}
.sec-desc{margin-top:12px;color:var(--ink-2);font-size:15.5px;max-width:66ch}
.text-link{
  display:inline-flex;align-items:center;gap:8px;font-size:14.5px;font-weight:600;color:var(--brand-700);
  position:relative;padding-bottom:3px;
}
.text-link::after{
  content:"";position:absolute;left:0;bottom:0;height:1.5px;width:0;background:var(--accent);transition:width .24s ease;
}
.text-link:hover::after{width:100%}
.text-link .arw{transition:transform .2s ease}
.text-link:hover .arw{transform:translateX(4px)}

/* ---------- stat strip ---------- */
.stat-strip{display:grid;grid-template-columns:repeat(4,1fr);border-top:1px solid var(--mist);border-bottom:1px solid var(--mist)}
.stat-cell{padding:28px 24px;border-left:1px solid var(--mist)}
.stat-cell:first-child{border-left:none}
.stat-num{font-family:var(--mono);font-variant-numeric:tabular-nums;font-size:clamp(2rem,3.6vw,2.6rem);font-weight:700;color:var(--brand-700);line-height:1.1}
.stat-num .u{font-size:14px;font-family:inherit;color:var(--ink-3);margin-left:4px;font-weight:600}
.stat-txt{font-size:13.5px;color:var(--ink-2);margin-top:8px}

/* ---------- timeline ---------- */
.tl-wrap{display:grid;grid-template-columns:.9fr 1.1fr;gap:56px;align-items:start}
.tl-aside{position:sticky;top:110px}
.tl-aside img{border-radius:var(--r-img);border:1px solid var(--mist);box-shadow:var(--shadow-1);margin-bottom:22px}
.tl-aside p{font-size:15px;color:var(--ink-2)}
.timeline{position:relative;padding-left:52px}
.timeline::before{content:"";position:absolute;left:9px;top:10px;bottom:18px;width:1px;background:var(--mist)}
.tl-item{position:relative;padding-bottom:34px}
.tl-item:last-child{padding-bottom:0}
.tl-item::before{
  content:"";position:absolute;left:-52px;top:6px;width:19px;height:19px;border-radius:50%;
  background:var(--card);border:2px solid var(--brand-500);
  box-shadow:0 0 0 4px rgba(28,107,95,.10);
}
.tl-item.is-key::before{background:var(--accent);border-color:var(--brand-700)}
.tl-no{font-family:var(--mono);font-size:12.5px;font-weight:700;color:var(--brand-500);letter-spacing:.1em}
.tl-title{font-size:17.5px;font-weight:600;margin:6px 0 8px;color:var(--brand-900)}
.tl-body{font-size:15px;color:var(--ink-2)}
.tl-meta{
  display:flex;flex-wrap:wrap;gap:10px;margin-top:12px;
}
.chip{
  display:inline-flex;align-items:center;gap:6px;
  font-size:12.5px;color:var(--brand-700);background:rgba(28,107,95,.07);
  border:1px solid rgba(28,107,95,.16);border-radius:999px;padding:4px 12px;
}
.chip.warn{color:#8a5a12;background:rgba(210,160,40,.10);border-color:rgba(210,160,40,.28)}
.chip.ok{color:var(--pos);background:rgba(46,158,107,.09);border-color:rgba(46,158,107,.24)}

/* ---------- table ---------- */
.table-wrap{border:1px solid var(--mist);border-radius:var(--r-card);background:var(--card);overflow-x:auto;box-shadow:var(--shadow-1)}
table.fit-table{width:100%;border-collapse:collapse;min-width:760px}
.fit-table th,.fit-table td{padding:16px 20px;font-size:14.5px;text-align:left;border-bottom:1px solid var(--mist);vertical-align:top}
.fit-table thead th{background:rgba(216,227,223,.5);color:var(--brand-900);font-weight:600;font-size:14px;letter-spacing:.02em;white-space:nowrap}
.fit-table tbody tr:last-child td{border-bottom:none}
.fit-table tbody tr:hover{background:rgba(248,246,242,.9)}
.fit-table td strong{color:var(--brand-700);font-weight:600}
.mono{font-family:var(--mono);font-variant-numeric:tabular-nums}

/* ---------- faq ---------- */
.faq-list{max-width:900px}
.accordion-item{background:transparent;border:none;border-top:1px solid var(--mist)}
.accordion-item:last-child{border-bottom:1px solid var(--mist)}
.accordion-button{
  background:transparent;border:none;box-shadow:none;
  font-size:18px;font-weight:600;color:var(--brand-900);
  padding:22px 44px 22px 0;position:relative;border-radius:0;
}
.accordion-button:not(.collapsed){color:var(--brand-700);background:transparent;box-shadow:none}
.accordion-button:focus{box-shadow:none;border-color:transparent}
.accordion-button::after{display:none}
.accordion-button .sign{
  position:absolute;right:0;top:50%;transform:translateY(-50%);
  width:26px;height:26px;border:1px solid var(--mist);border-radius:50%;
  color:var(--brand-700);font-size:16px;line-height:1;display:flex;align-items:center;justify-content:center;
  transition:background .2s ease,border-color .2s ease;
}
.accordion-button:hover .sign{background:rgba(168,230,58,.22);border-color:var(--brand-500)}
.accordion-body{padding:0 44px 24px 0;font-size:15px;color:var(--ink-2)}
.accordion-collapse{transition:height .28s ease}

/* ---------- form ---------- */
.form-grid{display:grid;grid-template-columns:5fr 7fr;gap:56px;align-items:start}
.form-points li{display:flex;gap:12px;padding:14px 0;border-bottom:1px solid rgba(216,227,223,.9);font-size:15px;color:var(--ink-2)}
.form-points li:last-child{border-bottom:none}
.form-points .dot{width:8px;height:8px;border-radius:50%;background:var(--accent);margin-top:10px;flex:0 0 8px}
.form-card{
  background:var(--card);border:1px solid var(--mist);border-radius:var(--r-card);
  padding:32px;box-shadow:var(--shadow-1);
}
.field{margin-bottom:18px}
.field label{display:block;font-size:13.5px;font-weight:600;color:var(--brand-900);margin-bottom:8px}
.field .form-control,.field select,.field textarea{
  width:100%;border:1px solid var(--mist);background:#FCFBF9;border-radius:var(--r-btn);
  padding:12px 14px;font-size:15px;color:var(--ink);
  transition:border-color .2s ease,box-shadow .2s ease,background .2s ease;
}
.field .form-control::placeholder{color:var(--ink-3)}
.field .form-control:focus,.field select:focus,.field textarea:focus{
  outline:none;border-color:var(--brand-500);background:#fff;
  box-shadow:0 0 0 3px rgba(168,230,58,.20);
}
.field textarea{min-height:104px;resize:vertical}
.check-line{display:flex;gap:10px;align-items:flex-start;font-size:13.5px;color:var(--ink-2);margin:6px 0 20px}
.check-line input{width:16px;height:16px;margin-top:4px;accent-color:var(--brand-700)}
.form-note{font-size:12.5px;color:var(--ink-3);margin-top:14px}

/* ---------- cta band ---------- */
.cta-band{
  background:var(--brand-900);color:#EAF1EE;border-radius:20px;
  padding:52px 48px;display:grid;grid-template-columns:1.3fr .7fr;gap:36px;align-items:center;
}
.cta-band h2{font-size:clamp(1.5rem,2.4vw,2rem);color:#fff}
.cta-band p{margin-top:14px;color:rgba(234,241,238,.78);font-size:15.5px;max-width:60ch}
.cta-band .btn-accent{
  display:inline-flex;align-items:center;justify-content:center;gap:10px;
  background:var(--accent);color:var(--brand-900);border:1px solid var(--accent);
  border-radius:var(--r-btn);padding:14px 26px;font-weight:700;font-size:15px;min-height:46px;
  transition:filter .2s ease,transform .2s ease;
}
.cta-band .btn-accent:hover{filter:brightness(.94);color:var(--brand-900)}
.cta-band .btn-line{
  display:inline-flex;align-items:center;justify-content:center;gap:10px;margin-top:14px;width:100%;
  background:transparent;color:#EAF1EE;border:1px solid rgba(234,241,238,.35);
  border-radius:var(--r-btn);padding:14px 26px;font-weight:600;font-size:15px;min-height:46px;
  transition:border-color .2s ease,background .2s ease,color .2s ease;
}
.cta-band .btn-line:hover{border-color:var(--accent);color:var(--accent)}

/* ---------- footer ---------- */
.site-footer{background:var(--brand-900);color:rgba(234,241,238,.82);margin-top:0;padding:64px 0 28px}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:40px}
.footer-brand{display:flex;align-items:center;gap:12px;margin-bottom:16px}
.footer-brand .brand-mark{background:rgba(168,230,58,.16);color:var(--accent)}
.footer-brand .brand-text{color:#fff;font-size:16px;font-weight:800}
.site-footer p{font-size:14px;line-height:1.8;color:rgba(234,241,238,.7)}
.footer-col h4{font-size:15px;color:#fff;margin-bottom:16px;font-weight:600}
.footer-col ul li{margin-bottom:10px}
.footer-col a{font-size:14px;color:rgba(234,241,238,.78)}
.footer-col a:hover{color:var(--accent)}
.footer-contact li{display:flex;gap:10px;font-size:14px;color:rgba(234,241,238,.78);margin-bottom:10px}
.fc-k{color:rgba(234,241,238,.5);flex:0 0 42px}
.footer-bottom{
  margin-top:44px;padding-top:22px;border-top:1px solid rgba(234,241,238,.16);
  display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:13px;color:rgba(234,241,238,.55);
}

/* ---------- responsive ---------- */
@media (max-width:1199.98px){
  .hero-grid{gap:40px}
  .tl-wrap{gap:40px}
}
@media (max-width:991.98px){
  .nav-shell{min-height:70px;flex-wrap:wrap}
  .navbar-toggler{display:flex}
  .navbar-collapse{
    flex-basis:100%;background:var(--card);border:1px solid var(--mist);
    border-radius:var(--r-card);padding:18px;margin-top:12px;box-shadow:var(--shadow-1);
  }
  .nav-main{flex-direction:column;align-items:stretch;gap:0;margin:0 0 14px}
  .nav-main a{display:block;padding:13px 4px;border-bottom:1px solid var(--mist);font-size:15.5px}
  .nav-main a::after{display:none}
  .nav-main a.active{color:var(--brand-700)}
  .nav-cta{margin-left:0;width:100%;justify-content:center}
  .hero{padding:48px 0 64px}
  .hero-grid{grid-template-columns:1fr;gap:36px}
  .hero-tag{left:14px;bottom:14px}
  .section{padding:72px 0}
  .stat-strip{grid-template-columns:repeat(2,1fr)}
  .stat-cell{padding:24px 20px}
  .stat-cell:nth-child(3){border-left:none}
  .stat-cell:nth-child(-n+2){border-bottom:1px solid var(--mist)}
  .tl-wrap{grid-template-columns:1fr}
  .tl-aside{position:static}
  .form-grid{grid-template-columns:1fr;gap:36px}
  .cta-band{grid-template-columns:1fr;padding:40px 32px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
}
@media (max-width:767.98px){
  .container{padding:0 16px}
  .brand-sub{display:none}
  .hero h1{font-size:clamp(1.9rem,7vw,2.4rem)}
  .hero-lead{font-size:15.5px}
  .hero-actions{flex-direction:column;align-items:stretch}
  .btn-brand,.btn-ghost{width:100%;justify-content:center}
  .sec-head{margin-bottom:30px}
  .timeline{padding-left:40px}
  .tl-item::before{left:-40px}
  .timeline::before{left:9px}
  .accordion-button{font-size:16.5px;padding:18px 40px 18px 0}
  .accordion-body{padding-right:0}
  .form-card{padding:24px}
  .cta-band{padding:32px 22px;border-radius:16px}
  .footer-bottom{flex-direction:column;gap:8px}
}
@media (max-width:575.98px){
  .stat-strip{grid-template-columns:1fr}
  .stat-cell{border-left:none;border-bottom:1px solid var(--mist)}
  .stat-cell:last-child{border-bottom:none}
  .footer-grid{grid-template-columns:1fr}
  .section{padding:56px 0}
}
@media (prefers-reduced-motion:reduce){
  *{animation:none !important;transition:none !important;scroll-behavior:auto !important}
}