/* roulang page: index */
/* ============ 1. 设计变量 ============ */
:root{
  --ink-green:#0B3A2E;
  --ink-green-2:#124A3B;
  --race-orange:#F05A26;
  --race-orange-d:#D64A18;
  --electric:#1FD3B0;
  --bg-warm:#F7F5F0;
  --card:#FFFFFF;
  --text-1:#131719;
  --text-2:#3A4247;
  --text-3:#6E767C;
  --line:#E3DED4;
  --hover:rgba(11,58,46,.06);
  --hover-2:rgba(11,58,46,.04);
  --r-sm:8px;
  --r-md:16px;
  --r-lg:24px;
  --r-pill:999px;
  --sh1:0 1px 2px rgba(19,23,25,.06);
  --sh2:0 14px 34px rgba(11,58,46,.14);
  --font:system-ui,-apple-system,"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Helvetica Neue",Arial,sans-serif;
  --font-num:ui-sans-serif,system-ui,"Segoe UI",Roboto,"Helvetica Neue",Arial,sans-serif;
  --ease:cubic-bezier(.2,.7,.3,1);
  --gutter:20px;
}
@media (min-width:1024px){ :root{ --gutter:28px; } }

/* ============ 2. 基础 reset ============ */
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:var(--font);
  font-size:1.0625rem;
  line-height:1.85;
  color:var(--text-2);
  background:var(--bg-warm);
  overflow-x:hidden;
  padding-bottom:76px;
}
h1,h2,h3,h4,h5{margin:0;color:var(--text-1);font-weight:800;letter-spacing:-.01em;}
p{margin:0 0 1.15em;max-width:34em;text-align:start;}
p:last-child{margin-bottom:0;}
ul,ol{margin:0;padding:0;list-style:none;}
img{max-width:100%;height:auto;display:block;}
a{color:var(--ink-green);text-decoration:none;transition:color .16s linear;}
a:focus-visible,button:focus-visible,input:focus-visible,select:focus-visible,textarea:focus-visible{
  outline:2px solid var(--electric);
  outline-offset:2px;
  border-radius:var(--r-sm);
}
button{font-family:inherit;cursor:pointer;border:0;background:none;}
input,select,textarea{font-family:inherit;font-size:1rem;color:var(--text-1);}
section{scroll-margin-top:72px;}
::selection{background:rgba(240,90,38,.18);}

/* ============ 3. 布局容器 ============ */
.container{
  width:100%;
  max-width:1240px;
  margin:0 auto;
  padding-left:20px;
  padding-right:20px;
}
@media (min-width:1024px){
  .container{padding-left:32px;padding-right:32px;}
}
.section{padding-top:56px;padding-bottom:56px;}
@media (min-width:640px){ .section{padding-top:72px;padding-bottom:72px;} }
@media (min-width:1024px){ .section{padding-top:96px;padding-bottom:96px;} }

.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:.8125rem;font-weight:700;letter-spacing:.08em;
  color:var(--race-orange);text-transform:uppercase;margin-bottom:14px;
}
.eyebrow::before{content:"";width:22px;height:2px;background:var(--race-orange);display:inline-block;}
.section-head{margin-bottom:28px;}
@media (min-width:1024px){ .section-head{margin-bottom:40px;} }
.section-head h2{font-size:clamp(1.6rem,3vw,2.4rem);line-height:1.2;margin-bottom:14px;}
.section-head p{color:var(--text-3);font-size:1rem;}
.section-head.center{text-align:center;}
.section-head.center p{margin-left:auto;margin-right:auto;}
.section-head.center .eyebrow{justify-content:center;}
.section-head-row{display:flex;flex-direction:column;gap:12px;align-items:flex-start;}
@media (min-width:768px){
  .section-head-row{flex-direction:row;align-items:flex-end;justify-content:space-between;}
}

/* ============ 4. 按钮 / 徽章 / 文本链接 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:14px 28px;border-radius:var(--r-pill);
  font-size:.9375rem;font-weight:700;line-height:1;letter-spacing:.01em;
  transition:background-color .18s var(--ease),color .18s var(--ease),transform .18s var(--ease),box-shadow .18s var(--ease),border-color .18s var(--ease);
  white-space:nowrap;text-align:center;
}
.btn i{font-size:.875rem;}
.btn-primary{background:var(--race-orange);color:#fff;box-shadow:0 6px 18px rgba(240,90,38,.24);}
.btn-primary:hover,.btn-primary:focus{background:var(--race-orange-d);color:#fff;transform:translateY(-2px);box-shadow:0 12px 26px rgba(240,90,38,.3);}
.btn-outline{background:transparent;color:var(--ink-green);border:1.5px solid var(--ink-green);}
.btn-outline:hover,.btn-outline:focus{background:rgba(11,58,46,.08);color:var(--ink-green);}
.btn-ghost{background:transparent;color:#fff;border:1.5px solid rgba(255,255,255,.7);}
.btn-ghost:hover,.btn-ghost:focus{background:#fff;color:var(--ink-green);border-color:#fff;}
.btn-block{width:100%;}
.btn-sm{padding:11px 20px;font-size:.875rem;}

.badge{
  display:inline-flex;align-items:center;gap:6px;
  padding:4px 12px;border-radius:var(--r-pill);
  font-size:.8125rem;font-weight:600;line-height:1.6;
}
.badge-cyan{background:rgba(31,211,176,.12);color:#0E8A72;}
.badge-soft{background:rgba(11,58,46,.07);color:var(--ink-green);}
.badge-light{background:rgba(255,255,255,.14);color:#fff;}

.text-link{
  color:var(--ink-green);font-weight:600;
  text-decoration:underline;text-underline-offset:3px;text-decoration-thickness:1px;
  transition:color .16s linear;
}
.text-link:hover{color:var(--race-orange);}

/* ============ 5. 顶部导航 ============ */
.site-header{
  position:sticky;top:0;z-index:80;
  background:rgba(247,245,240,.92);
  -webkit-backdrop-filter:blur(10px);
  backdrop-filter:blur(10px);
  border-bottom:1px solid transparent;
  transition:height .24s var(--ease),background-color .24s var(--ease),border-color .24s var(--ease),box-shadow .24s var(--ease);
}
.site-header.is-scrolled{background:#F7F5F0;border-bottom-color:var(--line);box-shadow:0 4px 18px rgba(19,23,25,.05);}
.header-inner{
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  height:76px;transition:height .24s var(--ease);
}
.site-header.is-scrolled .header-inner{height:60px;}
.brand{display:inline-flex;align-items:center;gap:10px;flex-shrink:0;}
.brand-mark{
  width:28px;height:28px;border-radius:9px;
  background:var(--ink-green);
  display:inline-flex;align-items:center;justify-content:center;flex-shrink:0;
}
.brand-mark svg{width:16px;height:16px;}
.brand-text{
  font-size:1.0625rem;font-weight:800;color:var(--ink-green);
  letter-spacing:-.01em;line-height:1;white-space:nowrap;
}
@media (min-width:1024px){
  .brand-mark{width:32px;height:32px;}
  .brand-text{font-size:1.125rem;}
}
.main-nav{display:none;}
.main-nav ul{display:flex;align-items:center;gap:6px;}
.main-nav a{
  display:inline-block;position:relative;
  padding:10px 12px;font-size:.9375rem;font-weight:600;color:var(--text-2);
  border-radius:var(--r-sm);transition:color .16s linear,background-color .16s linear;
}
.main-nav a:hover{color:var(--ink-green);background:var(--hover-2);}
.main-nav a.is-active{color:var(--ink-green);}
.main-nav a.is-active::after{
  content:"";position:absolute;left:12px;right:12px;bottom:2px;height:3px;
  background:var(--race-orange);border-radius:var(--r-pill);
}
.header-cta{display:none;}
.nav-toggle{
  display:inline-flex;align-items:center;justify-content:center;
  width:42px;height:42px;border-radius:12px;
  background:rgba(11,58,46,.06);color:var(--ink-green);font-size:1.125rem;
  transition:background-color .18s linear;
}
.nav-toggle:hover{background:rgba(11,58,46,.12);}
@media (min-width:1024px){
  .main-nav{display:block;}
  .header-cta{display:inline-flex;}
  .nav-toggle{display:none;}
}
.mobile-nav{
  display:none;
  border-top:1px solid var(--line);
  background:#F7F5F0;
  padding:10px 0 16px;
}
.mobile-nav.is-open{display:block;}
.mobile-nav ul{display:flex;flex-direction:column;}
.mobile-nav a{
  display:flex;align-items:center;justify-content:space-between;
  padding:14px 20px;font-size:1rem;font-weight:600;color:var(--text-2);
  border-bottom:1px solid var(--line);
}
.mobile-nav a:last-child{border-bottom:0;}
.mobile-nav a.is-active{color:var(--ink-green);}
.mobile-nav a.is-active::after{content:"当前页";font-size:.75rem;color:var(--race-orange);font-weight:600;}
.mobile-nav a i{color:var(--text-3);font-size:.875rem;}
@media (min-width:1024px){ .mobile-nav{display:none !important;} }

/* ============ 6. Hero ============ */
.hero{
  position:relative;overflow:hidden;
  background-color:var(--ink-green);
  background-image:url('/assets/images/backpic/back-1.png');
  background-size:cover;background-position:center;
}
.hero::before{
  content:"";position:absolute;inset:0;
  background:linear-gradient(120deg,rgba(11,58,46,.94) 0%,rgba(11,58,46,.82) 42%,rgba(11,58,46,.62) 100%);
}
.hero-inner{position:relative;z-index:2;padding-top:56px;padding-bottom:48px;}
@media (min-width:1024px){ .hero-inner{padding-top:88px;padding-bottom:88px;} }
.hero-copy{max-width:640px;}
.hero-tag{
  display:inline-flex;align-items:center;gap:8px;
  padding:6px 14px;border-radius:var(--r-pill);
  background:rgba(255,255,255,.12);color:#fff;
  font-size:.8125rem;font-weight:600;margin-bottom:20px;
}
.hero-tag .dot{width:7px;height:7px;border-radius:50%;background:var(--electric);display:inline-block;}
.hero h1{
  color:#fff;font-size:clamp(2.1rem,4.6vw,3.6rem);line-height:1.15;
  font-weight:800;letter-spacing:-.02em;margin-bottom:18px;
}
.hero h1 em{font-style:normal;color:var(--electric);}
.hero-sub{
  color:rgba(255,255,255,.86);font-size:1.0625rem;line-height:1.8;
  max-width:32em;margin-bottom:26px;
}
@media (min-width:1024px){ .hero-sub{font-size:1.125rem;} }
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-bottom:32px;}
.hero-trust{
  display:flex;flex-wrap:wrap;gap:12px 24px;
  padding-top:22px;border-top:1px solid rgba(255,255,255,.18);
}
.hero-trust li{
  display:inline-flex;align-items:center;gap:8px;
  color:rgba(255,255,255,.82);font-size:.875rem;font-weight:500;
}
.hero-trust i{color:var(--electric);font-size:.875rem;}

.hero-visual{margin-top:36px;}
@media (min-width:1024px){ .hero-visual{margin-top:0;} }
.hero-panel{
  background:#fff;border-radius:var(--r-lg);
  padding:22px;box-shadow:0 24px 60px rgba(4,26,20,.35);
  max-width:420px;margin:0 auto;
}
@media (min-width:1024px){ .hero-panel{margin:0 0 0 auto;} }
.hero-panel-top{display:flex;align-items:center;justify-content:space-between;margin-bottom:18px;}
.hero-panel-top span:first-child{font-size:.9375rem;font-weight:700;color:var(--text-1);}
.hero-field{margin-bottom:14px;}
.hf-label{display:block;font-size:.8125rem;font-weight:600;color:var(--text-3);margin-bottom:6px;}
.hf-fake{
  display:block;height:48px;line-height:48px;padding:0 16px;
  border:1px solid var(--line);border-radius:12px;
  background:#FCFBF8;color:#A6ADB2;font-size:.9375rem;
}
.hero-panel-actions{margin-top:18px;}
.hero-panel-actions .btn{width:100%;}
.hero-panel-foot{
  margin-top:16px;padding-top:16px;border-top:1px solid var(--line);
  font-size:.8125rem;color:var(--text-3);display:flex;align-items:center;gap:8px;
}
.hero-panel-foot i{color:var(--race-orange);}

/* ============ 7. 卖点长条列表 ============ */
.feature-list{border-top:1px solid var(--line);}
.feature-row{
  display:flex;gap:16px;padding:22px 16px 22px 0;
  border-bottom:1px solid var(--line);
  transition:background-color .2s var(--ease),transform .2s var(--ease);
}
.feature-row:hover{background:var(--hover-2);transform:translateX(4px);}
.feature-num{
  font-family:var(--font-num);font-size:1.5rem;font-weight:800;
  color:var(--ink-green);line-height:1.2;flex-shrink:0;min-width:38px;
  font-variant-numeric:tabular-nums;
}
.feature-body h3{font-size:1.25rem;line-height:1.35;margin-bottom:8px;}
.feature-body p{color:var(--text-3);font-size:.9375rem;line-height:1.8;margin:0;}
@media (min-width:768px){
  .feature-row{gap:32px;padding:28px 24px 28px 8px;}
  .feature-num{font-size:2rem;min-width:70px;}
  .feature-body{display:grid;grid-template-columns:minmax(200px,1fr) minmax(0,1.6fr);gap:28px;align-items:baseline;width:100%;}
  .feature-body h3{margin-bottom:0;}
}

/* ============ 8. 演示区 ============ */
.section-demo{background:#FFFFFF;border-top:1px solid var(--line);border-bottom:1px solid var(--line);}
.demo-sticky{margin-bottom:28px;}
@media (min-width:1024px){
  .demo-sticky{position:sticky;top:96px;margin-bottom:0;padding-right:24px;}
}
.step-cards{display:flex;flex-direction:column;gap:20px;}
.step-card{
  display:flex;flex-direction:column;
  background:var(--bg-warm);border:1px solid var(--line);border-radius:var(--r-md);
  overflow:hidden;transition:transform .2s var(--ease),box-shadow .2s var(--ease);
}
.step-card:hover{transform:translateY(-3px);box-shadow:var(--sh2);}
.step-card-media{aspect-ratio:16/9;overflow:hidden;background:#E8E4DB;}
.step-card-media img{width:100%;height:100%;object-fit:cover;}
.step-card-body{padding:20px 22px 24px;display:flex;gap:16px;align-items:flex-start;}
.step-index{
  flex-shrink:0;width:34px;height:34px;border-radius:50%;
  background:var(--ink-green);color:#fff;font-size:.875rem;font-weight:700;
  display:inline-flex;align-items:center;justify-content:center;
  font-variant-numeric:tabular-nums;
}
.step-card-body h3{font-size:1.125rem;margin-bottom:6px;}
.step-card-body p{font-size:.9375rem;color:var(--text-3);line-height:1.8;margin:0;}
@media (min-width:768px){
  .step-cards{flex-direction:row;}
  .step-card{flex:1;}
}

/* ============ 9. 证据区 ============ */
.section-proof{background:var(--ink-green);color:rgba(255,255,255,.82);}
.section-proof .eyebrow{color:var(--electric);}
.section-proof .eyebrow::before{background:var(--electric);}
.section-proof h2{color:#fff;}
.section-proof .section-head p{color:rgba(255,255,255,.72);}
.proof-stats{display:grid;grid-template-columns:repeat(2,1fr);gap:24px 20px;margin-bottom:40px;}
@media (min-width:1024px){ .proof-stats{grid-template-columns:repeat(4,1fr);gap:28px;} }
.stat{border-left:2px solid rgba(31,211,176,.45);padding-left:16px;}
.stat-num{
  display:block;font-family:var(--font-num);
  font-size:clamp(2rem,4vw,3rem);font-weight:800;line-height:1.1;
  color:#fff;font-variant-numeric:tabular-nums;
}
.stat-label{display:block;margin-top:8px;font-size:.875rem;color:rgba(255,255,255,.7);line-height:1.7;}
.proof-quote{
  position:relative;margin:0;border-radius:var(--r-lg);overflow:hidden;
  background-image:url('/assets/images/backpic/back-2.webp');
  background-size:cover;background-position:center;
  min-height:260px;display:flex;align-items:flex-end;
}
.proof-quote::before{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(11,58,46,.35) 0%,rgba(11,58,46,.92) 78%);
}
.proof-quote blockquote{
  position:relative;z-index:2;margin:0;padding:28px 24px;
  color:#fff;font-size:1.0625rem;line-height:1.85;max-width:44em;
}
.proof-quote blockquote footer{
  display:block;margin-top:14px;font-size:.875rem;color:rgba(255,255,255,.72);
}
@media (min-width:1024px){
  .proof-quote{min-height:340px;}
  .proof-quote blockquote{padding:44px 48px;font-size:1.25rem;}
}

/* ============ 10. 最新信息（CMS 区） ============ */
.section-news{background:var(--bg-warm);}
.news-grid{margin-top:8px;}
.news-lead{
  display:flex;flex-direction:column;
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-md);
  overflow:hidden;box-shadow:var(--sh1);
  transition:transform .2s var(--ease),box-shadow .2s var(--ease);
  height:100%;
}
.news-lead:hover{transform:translateY(-3px);box-shadow:var(--sh2);}
.news-lead-media{display:block;aspect-ratio:16/9;overflow:hidden;background:#E8E4DB;}
.news-lead-media img{width:100%;height:100%;object-fit:cover;transition:transform .4s var(--ease);}
.news-lead:hover .news-lead-media img{transform:scale(1.03);}
.news-lead-body{padding:22px;display:flex;flex-direction:column;gap:12px;flex:1;}
.news-lead-body h3{font-size:1.25rem;line-height:1.4;}
.news-lead-body h3 a{color:var(--text-1);}
.news-lead-body h3 a:hover{color:var(--race-orange);}
.news-excerpt{
  font-size:.9375rem;color:var(--text-3);line-height:1.8;margin:0;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.news-meta{
  display:flex;align-items:center;justify-content:space-between;gap:12px;
  margin-top:auto;padding-top:14px;border-top:1px solid var(--line);
  font-size:.8125rem;color:var(--text-3);
}
.news-mini-list{display:flex;flex-direction:column;gap:14px;height:100%;margin-top:20px;}
@media (min-width:1024px){ .news-mini-list{margin-top:0;} }
.news-mini{
  display:flex;gap:16px;
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-md);
  padding:16px;box-shadow:var(--sh1);flex:1;
  transition:transform .2s var(--ease),box-shadow .2s var(--ease),background-color .2s linear;
}
.news-mini:hover{transform:translateY(-3px);box-shadow:var(--sh2);background:#fff;}
.news-mini-thumb{
  width:88px;height:66px;flex-shrink:0;border-radius:12px;overflow:hidden;background:#E8E4DB;
}
.news-mini-thumb img{width:100%;height:100%;object-fit:cover;}
.news-mini-body{min-width:0;display:flex;flex-direction:column;gap:6px;}
.news-mini-body h3{
  font-size:1rem;line-height:1.5;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.news-mini-body h3 a{color:var(--text-1);}
.news-mini-body h3 a:hover{color:var(--race-orange);}
.news-mini-time{font-size:.8125rem;color:var(--text-3);}
.news-empty{
  background:var(--card);border:1px dashed var(--line);border-radius:var(--r-md);
  padding:48px 24px;text-align:center;
}
.news-empty i{font-size:2rem;color:var(--text-3);display:block;margin-bottom:14px;}
.news-empty p{margin:0 auto 18px;color:var(--text-3);max-width:none;}

/* ============ 11. 方案区 ============ */
.section-pricing{background:#FFFFFF;border-top:1px solid var(--line);border-bottom:1px solid var(--line);}
.pricing-grid{margin-top:8px;}
.price-card{
  position:relative;
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-lg);
  padding:26px 22px;box-shadow:var(--sh1);height:100%;
  display:flex;flex-direction:column;
  transition:transform .2s var(--ease),box-shadow .2s var(--ease);
}
.price-card:hover{transform:translateY(-3px);box-shadow:var(--sh2);}
.price-card.featured{border:2px solid var(--ink-green);}
.price-card + .price-card{margin-top:20px;}
@media (min-width:768px){ .price-card + .price-card{margin-top:0;} }
.price-flag{
  position:absolute;top:-13px;left:24px;
  background:var(--race-orange);color:#fff;
  font-size:.75rem;font-weight:700;letter-spacing:.06em;
  padding:4px 14px;border-radius:var(--r-pill);
}
.price-name{font-size:1.125rem;font-weight:700;color:var(--text-1);margin-bottom:6px;}
.price-desc{font-size:.875rem;color:var(--text-3);margin-bottom:18px;}
.price-num{
  font-family:var(--font-num);font-size:clamp(2rem,4vw,3rem);font-weight:800;
  color:var(--ink-green);line-height:1.1;font-variant-numeric:tabular-nums;
  display:flex;align-items:baseline;gap:6px;
}
.price-num small{font-size:.875rem;font-weight:600;color:var(--text-3);font-family:var(--font);}
.price-line{height:1px;background:var(--line);margin:22px 0;}
.price-list{display:flex;flex-direction:column;gap:12px;margin-bottom:26px;}
.price-list li{display:flex;align-items:flex-start;gap:10px;font-size:.9375rem;color:var(--text-2);line-height:1.7;}
.price-list i{color:var(--electric);font-size:.8125rem;margin-top:.45em;}
.price-card .btn{margin-top:auto;}

/* ============ 12. FAQ ============ */
.section-faq{background:var(--bg-warm);}
.faq-side p{color:var(--text-3);font-size:.9375rem;}
.faq-wrap{margin-top:24px;}
@media (min-width:1024px){ .faq-wrap{margin-top:0;} }
.accordion{border-top:1px solid var(--line);}
.accordion-item{border-bottom:1px solid var(--line);}
.accordion-title{
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:20px 0;font-size:1.0625rem;font-weight:600;color:var(--text-1);
  line-height:1.6;transition:color .16s linear;
}
.accordion-title:hover{color:var(--race-orange);}
.accordion-title::after{
  content:"+";flex-shrink:0;font-size:1.35rem;font-weight:700;
  color:var(--ink-green);line-height:1;
  transition:transform .24s var(--ease),color .24s var(--ease);
}
.accordion-item.is-active .accordion-title::after{content:"−";color:var(--race-orange);}
.accordion-content{padding:0 0 22px;}
.accordion-content p{font-size:.9375rem;line-height:1.9;color:var(--text-2);margin:0;max-width:58em;}

/* ============ 13. 联系区 ============ */
.section-contact{background:#FFFFFF;border-top:1px solid var(--line);}
.contact-info{margin-bottom:32px;}
.contact-block{
  display:flex;gap:14px;align-items:flex-start;
  padding:18px 0;border-bottom:1px solid var(--line);
}
.contact-block:last-child{border-bottom:0;}
.contact-icon{
  width:40px;height:40px;border-radius:12px;flex-shrink:0;
  background:rgba(11,58,46,.06);color:var(--ink-green);
  display:inline-flex;align-items:center;justify-content:center;font-size:.9375rem;
}
.contact-block h3{font-size:1rem;margin-bottom:4px;}
.contact-block p{font-size:.875rem;color:var(--text-3);margin:0;}
.contact-block a{font-size:.9375rem;color:var(--ink-green);font-weight:600;}
.contact-block a:hover{color:var(--race-orange);}
.contact-form{
  background:var(--bg-warm);border:1px solid var(--line);border-radius:var(--r-lg);
  padding:24px 20px;
}
@media (min-width:768px){ .contact-form{padding:32px 28px;} }
.field{margin-bottom:18px;}
.field label{
  display:block;font-size:.875rem;font-weight:600;color:var(--text-1);
  margin-bottom:8px;
}
.field .req{color:var(--race-orange);}
.field input,.field select,.field textarea{
  width:100%;height:48px;padding:0 16px;
  border:1px solid var(--line);border-radius:12px;background:#fff;
  transition:border-color .18s var(--ease),box-shadow .18s var(--ease);
  outline:none;
}
.field textarea{height:auto;padding:14px 16px;line-height:1.7;resize:vertical;}
.field select{
  appearance:none;-webkit-appearance:none;
  background-image:url("data:image/svg+xml;charset=utf8,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 12 8'%3E%3Cpath fill='%236E767C' d='M1.4 1.4 6 6l4.6-4.6'/%3E%3C/svg%3E");
  background-repeat:no-repeat;background-position:right 16px center;background-size:12px;
  padding-right:40px;
}
.field input:focus,.field select:focus,.field textarea:focus{
  border-color:var(--ink-green);box-shadow:0 0 0 3px rgba(31,211,176,.25);
}
.field.has-error input,.field.has-error select,.field.has-error textarea{
  border-color:var(--race-orange);
}
.field-error{display:none;margin-top:6px;font-size:.8125rem;color:var(--race-orange);}
.field.has-error .field-error{display:block;}
.form-note{
  margin:14px 0 0;font-size:.875rem;color:var(--ink-green);
  max-width:none;font-weight:600;
}
.form-note.is-error{color:var(--race-orange);}

/* ============ 14. 页脚 ============ */
.site-footer{
  background:var(--ink-green);color:rgba(255,255,255,.7);
  padding-top:48px;padding-bottom:32px;
  margin-bottom:0;
}
@media (min-width:1024px){ .site-footer{padding-top:72px;} }
.footer-brand{display:inline-flex;align-items:center;gap:10px;margin-bottom:14px;}
.footer-brand .brand-mark{background:rgba(255,255,255,.14);}
.footer-brand span{color:#fff;font-weight:800;font-size:1.0625rem;}
.site-footer p{color:rgba(255,255,255,.7);font-size:.875rem;line-height:1.8;}
.footer-col{margin-bottom:26px;}
.footer-col h4{
  color:#fff;font-size:.9375rem;font-weight:700;margin-bottom:14px;
  letter-spacing:.02em;
}
.footer-col ul{display:flex;flex-direction:column;gap:10px;}
.footer-col a{
  color:rgba(255,255,255,.7);font-size:.875rem;
  transition:color .16s linear;
}
.footer-col a:hover{color:var(--electric);}
.footer-bottom{
  margin-top:16px;padding-top:22px;border-top:1px solid rgba(255,255,255,.14);
  display:flex;flex-direction:column;gap:8px;
}
@media (min-width:768px){
  .footer-bottom{flex-direction:row;align-items:center;justify-content:space-between;}
}
.footer-bottom p{font-size:.8125rem;margin:0;}

/* ============ 15. 移动 Tab / 浮动 CTA ============ */
.tabbar{
  position:fixed;left:0;right:0;bottom:0;z-index:90;
  height:60px;
  padding-bottom:env(safe-area-inset-bottom);
  background:rgba(255,255,255,.97);
  -webkit-backdrop-filter:blur(10px);
  backdrop-filter:blur(10px);
  border-top:1px solid var(--line);
  display:flex;align-items:stretch;
}
.tabbar a{
  flex:1;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:3px;
  font-size:.6875rem;font-weight:600;color:var(--text-3);position:relative;
  transition:color .16s linear;
  min-width:0;
}
.tabbar a i{font-size:22px;line-height:1;}
.tabbar a span{white-space:nowrap;overflow:hidden;text-overflow:ellipsis;max-width:100%;}
.tabbar a.is-active{color:var(--ink-green);}
.tabbar a.is-active::before{
  content:"";position:absolute;top:0;left:50%;transform:translateX(-50%);
  width:26px;height:2px;background:var(--race-orange);border-radius:var(--r-pill);
}
@media (min-width:1024px){ .tabbar{display:none;} body{padding-bottom:0;} }

.float-cta{
  position:fixed;left:50%;transform:translate(-50%,14px);
  bottom:76px;z-index:95;
  display:inline-flex;align-items:center;gap:8px;
  padding:12px 22px;border-radius:var(--r-pill);
  background:var(--race-orange);color:#fff;font-size:.9375rem;font-weight:700;
  box-shadow:0 10px 26px rgba(240,90,38,.32);
  opacity:0;pointer-events:none;
  transition:opacity .3s var(--ease),transform .3s var(--ease),background-color .18s linear;
}
.float-cta.is-visible{opacity:1;pointer-events:auto;transform:translate(-50%,0);}
.float-cta:hover{background:var(--race-orange-d);color:#fff;transform:translate(-50%,-2px);}
@media (min-width:1024px){
  .float-cta{left:auto;right:24px;bottom:24px;transform:translateY(14px);}
  .float-cta.is-visible{transform:translateY(0);}
  .float-cta:hover{transform:translateY(-2px);}
}

/* ============ 16. 入场动效 ============ */
.js .reveal{opacity:0;transform:translateY(14px);transition:opacity .42s var(--ease),transform .42s var(--ease);}
.js .reveal.is-in{opacity:1;transform:none;}
.feature-list .reveal:nth-child(2){transition-delay:.06s;}
.feature-list .reveal:nth-child(3){transition-delay:.12s;}
.feature-list .reveal:nth-child(4){transition-delay:.18s;}

@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto;}
  *,*::before,*::after{
    animation-duration:.001ms !important;animation-iteration-count:1 !important;
    transition-duration:.001ms !important;
  }
  .js .reveal{opacity:1;transform:none;}
}

/* roulang page: article */
:root{
  --green:#0B3A2E;
  --green-700:#092F25;
  --green-soft:rgba(11,58,46,.06);
  --orange:#F05A26;
  --orange-dark:#D94A18;
  --cyan:#1FD3B0;
  --bg:#F7F5F0;
  --white:#FFFFFF;
  --ink:#131719;
  --body:#3A4247;
  --muted:#6E767C;
  --line:#E3DED4;
  --r-s:8px;
  --r-m:16px;
  --r-l:24px;
  --pill:999px;
  --sh-1:0 1px 2px rgba(19,23,25,.06);
  --sh-2:0 14px 34px rgba(11,58,46,.14);
  --container:1240px;
  --header-h:76px;
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{
  margin:0;
  background:var(--bg);
  color:var(--body);
  font-family:system-ui,-apple-system,"PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;
  font-size:1.0625rem;
  line-height:1.85;
  text-align:start;
  overflow-x:hidden;
}
img{max-width:100%;height:auto;display:block}
a{color:var(--green);text-decoration:none;text-underline-offset:3px;transition:color .16s ease,background-color .16s ease,border-color .16s ease}
a:hover{color:var(--orange)}
ul,ol{margin:0 0 1.15em;padding-inline-start:1.25em}
h1,h2,h3,h4{color:var(--ink);margin:0 0 12px;font-weight:800;letter-spacing:-.01em;text-align:start}
p{margin:0 0 1.15em;max-width:34em}
button,input,select,textarea{font:inherit;color:inherit}
:focus-visible{outline:2px solid var(--cyan);outline-offset:2px;border-radius:4px}
.container{width:100%;max-width:var(--container);margin:0 auto;padding-inline:20px}
@media (min-width:900px){.container{padding-inline:32px}}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:14px 28px;border-radius:var(--pill);border:1px solid transparent;
  font-size:1rem;font-weight:700;line-height:1.2;cursor:pointer;
  transition:transform .2s ease,box-shadow .2s ease,background-color .2s ease,color .2s ease,border-color .2s ease;
  text-align:center;
}
.btn i{font-size:.95em}
.btn-primary{background:var(--orange);color:#fff;box-shadow:0 6px 18px rgba(240,90,38,.24)}
.btn-primary:hover{background:var(--orange-dark);color:#fff;transform:translateY(-2px);box-shadow:0 12px 26px rgba(240,90,38,.28)}
.btn-primary:active{transform:translateY(0);box-shadow:0 4px 12px rgba(240,90,38,.22)}
.btn-ghost{background:transparent;color:var(--green);border-color:var(--green);border-width:1.5px}
.btn-ghost:hover{background:var(--green-soft);color:var(--green);transform:translateY(-2px)}
.btn-light{background:transparent;color:#fff;border:1.5px solid rgba(255,255,255,.7)}
.btn-light:hover{background:#fff;color:var(--green);border-color:#fff;transform:translateY(-2px)}
.btn-sm{padding:10px 20px;font-size:.9375rem}
.btn-block{width:100%}

/* ---------- badges ---------- */
.badge{
  display:inline-flex;align-items:center;gap:6px;
  padding:5px 12px;border-radius:var(--pill);
  font-size:.8125rem;font-weight:600;line-height:1.5;
  background:rgba(31,211,176,.12);color:#0E8E76;
}
.badge-neutral{background:rgba(110,118,124,.12);color:var(--muted)}
.badge-dark{background:rgba(255,255,255,.14);color:#fff}

/* ---------- header ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(247,245,240,.88);
  backdrop-filter:saturate(150%) blur(10px);
  border-bottom:1px solid transparent;
  transition:background-color .24s ease,border-color .24s ease,box-shadow .24s ease;
}
.site-header.is-shrunk{
  background:rgba(255,255,255,.98);
  border-bottom:1px solid var(--line);
  box-shadow:0 6px 20px rgba(11,58,46,.06);
}
.header-inner{
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  height:var(--header-h);
  transition:height .24s ease;
}
.site-header.is-shrunk .header-inner{height:60px}
.logo{display:inline-flex;align-items:center;gap:10px;color:var(--ink);font-weight:800}
.logo:hover{color:var(--ink)}
.logo-mark{width:32px;height:32px;flex:none}
.logo-text{font-size:1.0625rem;letter-spacing:-.02em;white-space:nowrap}
@media (max-width:400px){.logo-text{font-size:.9375rem}.logo-mark{width:28px;height:28px}}
.main-nav{display:none}
.main-nav ul{display:flex;align-items:center;gap:4px;list-style:none;margin:0;padding:0}
.main-nav a{
  position:relative;display:inline-block;
  padding:10px 14px;border-radius:var(--pill);
  color:var(--body);font-size:.9688rem;font-weight:600;
  transition:color .16s ease,background-color .16s ease;
}
.main-nav a:hover{color:var(--green);background:var(--green-soft)}
.main-nav a.is-active{color:var(--green)}
.main-nav a.is-active::after{
  content:"";position:absolute;left:50%;bottom:2px;transform:translateX(-50%);
  width:22px;height:3px;border-radius:2px;background:var(--orange);
}
.header-actions{display:flex;align-items:center;gap:10px}
.header-cta{display:none}
.menu-toggle{
  width:42px;height:42px;display:inline-flex;align-items:center;justify-content:center;
  border:1px solid var(--line);border-radius:12px;background:#fff;color:var(--green);
  cursor:pointer;transition:background-color .16s ease,border-color .16s ease;
}
.menu-toggle:hover{background:var(--green-soft);border-color:rgba(11,58,46,.25)}
@media (min-width:1024px){
  .main-nav{display:block}
  .header-cta{display:inline-flex}
  .menu-toggle{display:none}
}
.nav-drawer{
  border-top:1px solid var(--line);background:#fff;
  padding:8px 20px 20px;
}
.nav-drawer ul{list-style:none;margin:0;padding:0}
.nav-drawer a{
  display:flex;align-items:center;justify-content:space-between;
  padding:14px 4px;border-bottom:1px solid var(--line);
  color:var(--ink);font-weight:600;
}
.nav-drawer li:last-child a{border-bottom:0}
@media (min-width:1024px){.nav-drawer{display:none!important}}

/* ---------- breadcrumb ---------- */
.crumb{
  display:flex;flex-wrap:wrap;align-items:center;gap:8px;
  padding:22px 0 0;font-size:.875rem;color:var(--muted);line-height:1.7;
}
.crumb a{color:var(--muted)}
.crumb a:hover{color:var(--orange)}
.crumb span.sep{color:#C6BFB2}
.crumb .current{color:var(--ink);font-weight:600;max-width:100%;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
@media (max-width:640px){.crumb .current{white-space:normal}}

/* ---------- article head ---------- */
.article-head{padding:20px 0 28px;border-bottom:1px solid var(--line)}
.article-head h1{
  font-size:clamp(1.75rem,4vw,2.6rem);
  line-height:1.2;letter-spacing:-.02em;margin:14px 0 16px;max-width:24em;
}
.article-meta{
  display:flex;flex-wrap:wrap;align-items:center;gap:10px 20px;
  font-size:.875rem;color:var(--muted);
}
.article-meta span{display:inline-flex;align-items:center;gap:6px}
.article-meta i{color:var(--cyan);font-size:.9em}

/* ---------- article layout ---------- */
.article-layout{display:grid;grid-template-columns:minmax(0,1fr);gap:40px;padding:36px 0 8px}
@media (min-width:1024px){
  .article-layout{grid-template-columns:minmax(0,720px) 240px;justify-content:center;gap:56px;padding:48px 0 8px}
}
.article-main{min-width:0}
.article-aside{display:none}
@media (min-width:1024px){
  .article-aside{display:block;position:sticky;top:96px;align-self:start}
}
.toc-title{font-size:.8125rem;font-weight:700;letter-spacing:.12em;color:var(--muted);text-transform:uppercase;margin-bottom:12px}
.toc-list{list-style:none;margin:0 0 24px;padding:0;border-left:1px solid var(--line)}
.toc-list li{margin:0}
.toc-list a{
  display:block;padding:7px 0 7px 14px;margin-left:-1px;
  border-left:2px solid transparent;
  color:var(--body);font-size:.9375rem;line-height:1.6;
}
.toc-list a:hover{color:var(--green);border-left-color:var(--orange);background:var(--green-soft)}
.toc-list a.is-current{color:var(--green);border-left-color:var(--orange);font-weight:700}
.toc-empty{font-size:.875rem;color:var(--muted);margin-bottom:24px}
.aside-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-m);
  padding:20px;box-shadow:var(--sh-1);
}
.aside-card h3{font-size:1rem;margin-bottom:8px}
.aside-card p{font-size:.875rem;color:var(--muted);margin-bottom:14px;max-width:none}

/* ---------- article content typography ---------- */
.article-content{font-size:1.0625rem;line-height:1.85;color:var(--body)}
.article-content > *:first-child{margin-top:0}
.article-content h2{
  font-size:clamp(1.3rem,2.4vw,1.5rem);line-height:1.3;font-weight:800;
  margin:36px 0 12px;scroll-margin-top:96px;position:relative;
}
.article-content h3{font-size:1.125rem;line-height:1.4;font-weight:700;margin:26px 0 10px;scroll-margin-top:96px}
.article-content h4{font-size:1rem;font-weight:700;margin:20px 0 8px}
.article-content p{margin:0 0 1.15em;max-width:34em}
.article-content ul,.article-content ol{max-width:34em;margin:0 0 1.2em;padding-inline-start:1.1em}
.article-content ul{list-style:none;padding-inline-start:0}
.article-content ul li{position:relative;padding-inline-start:22px;margin-bottom:.5em}
.article-content ul li::before{
  content:"";position:absolute;left:4px;top:.72em;width:7px;height:7px;border-radius:50%;
  background:var(--orange);
}
.article-content ol{padding-inline-start:1.4em}
.article-content ol li{margin-bottom:.5em}
.article-content ol li::marker{color:var(--green);font-weight:700}
.article-content blockquote{
  margin:24px 0;padding:16px 20px;
  border-left:3px solid var(--green);
  background:rgba(11,58,46,.04);
  border-radius:0 var(--r-s) var(--r-s) 0;
  color:var(--body);
}
.article-content blockquote p:last-child{margin-bottom:0}
.article-content img{border-radius:var(--r-m);margin:24px auto;box-shadow:var(--sh-1)}
.article-content figure{margin:24px 0}
.article-content figcaption{font-size:.8125rem;color:var(--muted);text-align:center;margin-top:8px}
.article-content table{
  width:100%;border-collapse:collapse;display:block;overflow-x:auto;
  margin:24px 0;font-size:.9375rem;border:1px solid var(--line);border-radius:var(--r-s);
}
.article-content thead th{background:var(--green);color:#fff;font-weight:700;text-align:start;padding:12px 16px;white-space:nowrap}
.article-content tbody td{padding:11px 16px;border-top:1px solid var(--line);white-space:nowrap}
.article-content tbody tr:nth-child(even){background:rgba(11,58,46,.035)}
.article-content pre{
  background:#F1EEE7;border:1px solid var(--line);border-radius:var(--r-s);
  padding:16px 18px;overflow-x:auto;font-size:.875rem;line-height:1.7;
}
.article-content code{
  font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;
  background:#F1EEE7;border-radius:6px;padding:2px 6px;font-size:.9em;color:var(--green);
}
.article-content pre code{background:none;padding:0;color:var(--ink)}
.article-content a{color:var(--green);text-decoration:underline;text-decoration-thickness:1px;text-underline-offset:3px}
.article-content a:hover{color:var(--orange)}
.article-content hr{border:0;border-top:1px solid var(--line);margin:32px 0}
.heading-anchor{margin-inline-start:8px;color:var(--cyan);opacity:0;font-size:.85em;text-decoration:none}
.article-content h2:hover .heading-anchor,
.article-content h3:hover .heading-anchor{opacity:1}

/* ---------- tags / prev-next ---------- */
.tag-row{display:flex;flex-wrap:wrap;align-items:center;gap:10px;margin:36px 0 0;padding-top:24px;border-top:1px solid var(--line)}
.tag-row .label{font-size:.875rem;color:var(--muted);font-weight:600}
.tag{display:inline-flex;align-items:center;padding:6px 14px;border-radius:var(--pill);border:1px solid var(--line);background:#fff;font-size:.8125rem;font-weight:600;color:var(--body)}
.tag:hover{border-color:var(--green);color:var(--green);background:var(--green-soft)}
.pager{display:grid;gap:16px;margin:32px 0 0}
@media (min-width:768px){.pager{grid-template-columns:1fr 1fr}}
.pager-card{
  display:block;background:#fff;border:1px solid var(--line);border-radius:var(--r-m);
  padding:20px;box-shadow:var(--sh-1);
  transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.pager-card:hover{transform:translateY(-3px);box-shadow:var(--sh-2);border-color:rgba(11,58,46,.18);color:var(--ink)}
.pager-card .kicker{font-size:.8125rem;color:var(--muted);font-weight:600;display:flex;align-items:center;gap:6px;margin-bottom:6px}
.pager-card h3{font-size:1.0625rem;margin:0;line-height:1.5}

/* ---------- empty state ---------- */
.empty-state{
  border:1px dashed var(--line);border-radius:var(--r-m);background:#fff;
  padding:56px 24px;text-align:center;box-shadow:var(--sh-1);
}
.empty-state i{font-size:2.2rem;color:var(--cyan);margin-bottom:14px;display:block}
.empty-state p{max-width:none;color:var(--muted);margin-bottom:20px}

/* ---------- sections ---------- */
.section{padding-block:56px}
@media (min-width:900px){.section{padding-block:72px}}
@media (min-width:1024px){.section{padding-block:96px}}
.section-head{margin-bottom:28px}
.section-head h2{font-size:clamp(1.5rem,3vw,2.1rem);line-height:1.2}
.section-head p{color:var(--muted);max-width:34em;margin-bottom:0}
.section-head .head-row{display:flex;flex-wrap:wrap;align-items:flex-end;justify-content:space-between;gap:12px}
.text-link{color:var(--green);font-weight:700;text-decoration:underline;text-underline-offset:3px}
.text-link:hover{color:var(--orange)}

/* ---------- cards ---------- */
.card-grid{display:grid;gap:20px;grid-template-columns:1fr}
@media (min-width:640px){.card-grid{grid-template-columns:repeat(2,1fr)}}
@media (min-width:1024px){.card-grid{grid-template-columns:repeat(3,1fr);gap:28px}}
.card{
  display:flex;flex-direction:column;background:#fff;border:1px solid var(--line);
  border-radius:var(--r-m);overflow:hidden;box-shadow:var(--sh-1);
  transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.card:hover{transform:translateY(-3px);box-shadow:var(--sh-2);border-color:rgba(11,58,46,.18)}
.card-media{position:relative;aspect-ratio:16/9;background:var(--green);overflow:hidden}
.card-media img{width:100%;height:100%;object-fit:cover;transition:transform .3s ease}
.card:hover .card-media img{transform:scale(1.04)}
.card-body{padding:20px;display:flex;flex-direction:column;gap:10px;flex:1}
@media (min-width:1024px){.card-body{padding:24px}}
.card-body h3{font-size:1.125rem;line-height:1.4;margin:0;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.card-body p{margin:0;font-size:.9375rem;color:var(--muted);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;max-width:none}
.card-foot{display:flex;align-items:center;justify-content:space-between;gap:10px;margin-top:auto;padding-top:6px;font-size:.8125rem;color:var(--muted)}
.card-foot a{font-weight:700}

/* ---------- CTA strip ---------- */
.cta-strip{background:var(--green);color:#fff;border-radius:var(--r-l);padding:36px 24px;text-align:center}
@media (min-width:900px){.cta-strip{padding:48px 56px;display:flex;align-items:center;justify-content:space-between;gap:32px;text-align:start}}
.cta-strip h2{color:#fff;font-size:clamp(1.4rem,2.6vw,1.9rem);margin-bottom:10px}
.cta-strip p{color:rgba(255,255,255,.78);margin:0;max-width:32em}
.cta-strip .cta-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:22px;justify-content:center}
@media (min-width:900px){.cta-strip .cta-actions{margin-top:0;justify-content:flex-start;flex:none}}

/* ---------- footer ---------- */
.site-footer{background:var(--green);color:#fff;margin-top:56px;padding:48px 0 0}
@media (min-width:1024px){.site-footer{margin-top:96px;padding-top:64px}}
.footer-grid{display:grid;gap:32px;grid-template-columns:1fr}
@media (min-width:640px){.footer-grid{grid-template-columns:repeat(2,1fr)}}
@media (min-width:1024px){.footer-grid{grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:40px}}
.footer-brand{display:inline-flex;align-items:center;gap:10px;color:#fff;font-weight:800;font-size:1.0625rem}
.footer-brand:hover{color:#fff}
.site-footer p{color:rgba(255,255,255,.72);font-size:.9375rem;max-width:30em}
.footer-col h3{color:#fff;font-size:.9375rem;letter-spacing:.06em;margin-bottom:14px;font-weight:700}
.footer-col ul{list-style:none;margin:0;padding:0}
.footer-col li{margin-bottom:10px}
.footer-col a,.site-footer a{color:rgba(255,255,255,.82);font-size:.9375rem}
.footer-col a:hover,.site-footer a:hover{color:#fff;text-decoration:underline;text-underline-offset:3px}
.footer-contact li{display:flex;gap:10px;align-items:flex-start;color:rgba(255,255,255,.82);font-size:.9375rem}
.footer-contact i{color:var(--cyan);margin-top:5px}
.footer-bottom{
  margin-top:36px;border-top:1px solid rgba(255,255,255,.16);
  padding:20px 0 30px;display:flex;flex-wrap:wrap;gap:10px 24px;
  justify-content:space-between;align-items:center;
  color:rgba(255,255,255,.6);font-size:.8125rem;
}
.footer-bottom .note{color:rgba(255,255,255,.6)}

/* ---------- floating CTA ---------- */
.float-cta{
  position:fixed;right:20px;bottom:76px;z-index:70;
  display:inline-flex;align-items:center;gap:8px;
  padding:12px 20px;border-radius:var(--pill);
  background:var(--orange);color:#fff;font-weight:700;font-size:.9375rem;
  box-shadow:0 10px 26px rgba(240,90,38,.32);
  opacity:0;visibility:hidden;transform:translateY(10px);
  transition:opacity .24s ease,transform .24s ease,visibility .24s ease,background-color .16s ease;
}
.float-cta:hover{background:var(--orange-dark);color:#fff;transform:translateY(-2px)}
.float-cta.is-visible{opacity:1;visibility:visible;transform:translateY(0)}
@media (min-width:1024px){.float-cta{right:24px;bottom:24px;padding:14px 24px}}

/* ---------- mobile tab bar ---------- */
.tab-bar{
  position:fixed;left:0;right:0;bottom:0;z-index:80;
  display:grid;grid-template-columns:repeat(5,1fr);
  background:#fff;border-top:1px solid var(--line);
  padding-bottom:env(safe-area-inset-bottom);
  box-shadow:0 -6px 20px rgba(11,58,46,.07);
}
.tab-item{
  position:relative;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:4px;
  height:60px;color:var(--muted);font-size:.6875rem;font-weight:600;
}
.tab-item i{font-size:22px;line-height:1}
.tab-item:hover{color:var(--green)}
.tab-item.is-active{color:var(--green)}
.tab-item.is-active::before{
  content:"";position:absolute;top:0;width:26px;height:2px;border-radius:2px;background:var(--orange);
}
@media (min-width:1024px){.tab-bar{display:none}}
body{padding-bottom:60px}
@media (min-width:1024px){body{padding-bottom:0}}

/* ---------- reveal ---------- */
.reveal{opacity:0;transform:translateY(14px);transition:opacity .42s cubic-bezier(.2,.7,.3,1),transform .42s cubic-bezier(.2,.7,.3,1)}
.reveal.is-in{opacity:1;transform:none}
.no-js .reveal{opacity:1;transform:none}
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  *,*::before,*::after{animation-duration:.001ms!important;animation-iteration-count:1!important;transition-duration:.001ms!important}
  .reveal{opacity:1!important;transform:none!important}
}

/* roulang page: category1 */
:root{
  --ink:#0B3A2E;
  --ink-deep:#082C22;
  --orange:#F05A26;
  --cyan:#1FD3B0;
  --bg:#F7F5F0;
  --white:#FFFFFF;
  --title:#131719;
  --text:#3A4247;
  --muted:#6E767C;
  --line:#E3DED4;
  --wash:rgba(11,58,46,.06);
  --r-s:8px;
  --r-m:16px;
  --r-l:24px;
  --pill:999px;
  --sh-1:0 1px 2px rgba(19,23,25,.06);
  --sh-2:0 14px 34px rgba(11,58,46,.14);
  --sec-y:56px;
  --gutter:20px;
  --container:1240px;
  --header-h:76px;
}
@media (min-width:640px){ :root{ --sec-y:72px; } }
@media (min-width:1024px){ :root{ --sec-y:96px; --gutter:32px; } }

*,*::before,*::after{ box-sizing:border-box; }
html{ scroll-behavior:smooth; -webkit-text-size-adjust:100%; }
body{
  margin:0;
  padding-top:var(--header-h);
  background:var(--bg);
  color:var(--text);
  font-family:system-ui,-apple-system,"PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;
  font-size:1.0625rem;
  line-height:1.85;
  text-align:start;
  -webkit-font-smoothing:antialiased;
}
@media (max-width:1023px){
  body{ padding-bottom:calc(60px + env(safe-area-inset-bottom)); }
}
img{ max-width:100%; display:block; border:0; }
a{ color:var(--ink); text-decoration:none; transition:color .16s ease; }
a:hover{ color:var(--orange); }
button,input,select,textarea{ font:inherit; color:inherit; }
h1,h2,h3,h4{ margin:0; color:var(--title); font-weight:800; letter-spacing:-.01em; }
h1{ font-size:clamp(2.1rem,4.6vw,3.6rem); line-height:1.15; letter-spacing:-.02em; }
h2{ font-size:clamp(1.6rem,3vw,2.4rem); line-height:1.2; }
h3{ font-size:1.25rem; line-height:1.35; font-weight:700; }
p{ margin:0 0 1.15em; }
p:last-child{ margin-bottom:0; }
ul,ol{ margin:0; padding:0; list-style:none; }
figure{ margin:0; }
strong{ color:var(--title); font-weight:700; }

.container{
  width:100%;
  max-width:var(--container);
  margin-inline:auto;
  padding-inline:var(--gutter);
}
.grid-x.gutter{ margin-inline:calc(var(--gutter) / -2); }
.grid-x.gutter > .cell{ padding-inline:calc(var(--gutter) / 2); }
.section{ padding-block:var(--sec-y); }
.section-head{ max-width:46em; margin-bottom:32px; }
.section-head p{ margin-top:12px; color:var(--muted); }
.eyebrow{
  display:inline-flex; align-items:center; gap:8px;
  font-size:.8125rem; font-weight:700; letter-spacing:.06em;
  color:var(--ink); text-transform:uppercase;
  padding:6px 14px; border-radius:var(--pill);
  background:rgba(31,211,176,.12);
  margin-bottom:16px;
}
.eyebrow::before{ content:""; width:6px; height:6px; border-radius:50%; background:var(--cyan); }

/* ---------- Header ---------- */
.site-header{
  position:fixed; inset:0 0 auto 0; z-index:80;
  height:var(--header-h);
  display:flex; align-items:center;
  background:rgba(247,245,240,.86);
  backdrop-filter:blur(12px);
  -webkit-backdrop-filter:blur(12px);
  border-bottom:1px solid transparent;
  transition:height .18s ease, background-color .18s ease, border-color .18s ease, box-shadow .18s ease;
}
.site-header.is-scrolled{
  height:60px; background:var(--bg);
  border-bottom-color:var(--line);
  box-shadow:0 6px 20px rgba(11,58,46,.06);
}
.header-inner{
  display:flex; align-items:center; gap:16px;
  width:100%; max-width:var(--container);
  margin-inline:auto; padding-inline:var(--gutter);
}
.logo{ display:inline-flex; align-items:center; gap:10px; flex:0 0 auto; }
.logo-mark{ width:32px; height:32px; flex:0 0 auto; }
.logo-text{ font-size:1.0625rem; font-weight:800; color:var(--ink); letter-spacing:-.01em; white-space:nowrap; }
@media (max-width:1023px){ .logo-mark{ width:28px; height:28px; } .logo-text{ font-size:.9375rem; } }

.main-nav{ margin-left:auto; }
.main-nav ul{ display:flex; align-items:center; gap:4px; }
.main-nav a{
  position:relative; display:inline-block;
  padding:10px 14px; border-radius:var(--pill);
  font-size:.9375rem; font-weight:600; color:var(--text);
  transition:color .16s ease, background-color .16s ease;
}
.main-nav a:hover{ color:var(--ink); background:var(--wash); }
.main-nav a.is-active{ color:var(--ink); }
.main-nav a.is-active::after{
  content:""; position:absolute; left:14px; right:14px; bottom:1px;
  height:3px; border-radius:2px; background:var(--orange);
}
.header-cta{ flex:0 0 auto; }
.nav-toggle{
  display:none; align-items:center; justify-content:center;
  width:42px; height:42px; border-radius:12px;
  border:1px solid var(--line); background:var(--white);
  color:var(--ink); cursor:pointer;
}
.nav-toggle svg{ width:20px; height:20px; stroke:currentColor; fill:none; stroke-width:1.8; }
.nav-toggle:focus-visible{ outline:2px solid var(--cyan); outline-offset:2px; }

@media (max-width:1023px){
  .nav-toggle{ display:inline-flex; margin-left:auto; }
  .header-cta{ display:none; }
  .main-nav{
    position:absolute; top:100%; left:0; right:0;
    margin-left:0; padding:10px var(--gutter) 18px;
    background:var(--white);
    border-bottom:1px solid var(--line);
    box-shadow:0 22px 44px rgba(11,58,46,.14);
    display:none;
  }
  .site-header.is-open .main-nav{ display:block; }
  .main-nav ul{ flex-direction:column; align-items:stretch; gap:2px; }
  .main-nav a{ padding:14px 12px; border-radius:12px; }
  .main-nav a.is-active{ background:rgba(240,90,38,.1); }
  .main-nav a.is-active::after{ display:none; }
}

/* ---------- Buttons ---------- */
.btn{
  display:inline-flex; align-items:center; justify-content:center; gap:8px;
  padding:14px 28px; border-radius:var(--pill);
  font-size:.9375rem; font-weight:700; line-height:1;
  border:1.5px solid transparent; cursor:pointer;
  transition:transform .18s ease, box-shadow .18s ease, background-color .18s ease, color .18s ease, border-color .18s ease, filter .18s ease;
}
.btn:focus-visible{ outline:2px solid var(--cyan); outline-offset:2px; }
.btn-primary{ background:var(--orange); color:#fff; box-shadow:0 8px 22px rgba(240,90,38,.26); }
.btn-primary:hover{ background:var(--orange); color:#fff; filter:brightness(.94); transform:translateY(-2px); box-shadow:0 16px 32px rgba(240,90,38,.32); }
.btn-ghost{ background:transparent; color:var(--ink); border-color:var(--ink); }
.btn-ghost:hover{ background:rgba(11,58,46,.08); color:var(--ink); }
.btn-on-dark{ background:transparent; color:#fff; border-color:rgba(255,255,255,.72); }
.btn-on-dark:hover{ background:#fff; color:var(--ink); }
.btn-sm{ padding:11px 20px; font-size:.875rem; }
.btn-row{ display:flex; flex-wrap:wrap; gap:14px; }

/* ---------- Breadcrumb ---------- */
.breadcrumb{ font-size:.8125rem; color:rgba(255,255,255,.72); margin-bottom:16px; }
.breadcrumb ol{ display:flex; flex-wrap:wrap; align-items:center; gap:6px; }
.breadcrumb li{ display:inline-flex; align-items:center; gap:6px; }
.breadcrumb li + li::before{ content:"/"; color:rgba(255,255,255,.4); }
.breadcrumb a{ color:rgba(255,255,255,.86); }
.breadcrumb a:hover{ color:#fff; text-decoration:underline; text-underline-offset:3px; }
.breadcrumb [aria-current="page"]{ color:#fff; font-weight:600; }

/* ---------- Page hero ---------- */
.page-hero{
  position:relative;
  padding-block:56px 64px;
  color:#fff;
  background:
    linear-gradient(120deg, rgba(11,58,46,.92) 0%, rgba(11,58,46,.84) 55%, rgba(8,44,34,.94) 100%),
    url('/assets/images/backpic/back-1.png') center/cover no-repeat;
}
@media (min-width:1024px){ .page-hero{ padding-block:76px 88px; } }
.page-hero h1{ color:#fff; }
.page-hero .hero-lead{
  margin-top:18px; max-width:30em;
  font-size:1.0625rem; line-height:1.85; color:rgba(255,255,255,.82);
}
.hero-actions{ margin-top:28px; }
.hero-figure{
  margin-top:32px; border-radius:var(--r-m); overflow:hidden;
  border:1px solid rgba(255,255,255,.18);
  box-shadow:0 20px 50px rgba(0,0,0,.28);
  aspect-ratio:16/9;
}
.hero-figure img{ width:100%; height:100%; object-fit:cover; }
.hero-meta{ display:flex; flex-wrap:wrap; gap:12px; margin-top:26px; }
.hero-meta span{
  display:inline-flex; align-items:center; gap:7px;
  padding:7px 14px; border-radius:var(--pill);
  background:rgba(255,255,255,.12);
  font-size:.8125rem; font-weight:600; color:#fff;
}
.hero-meta span i{ width:7px; height:7px; border-radius:50%; background:var(--cyan); display:inline-block; }

/* ---------- Steps ---------- */
.steps{ margin-top:8px; }
.step{ position:relative; padding-left:66px; padding-bottom:38px; }
.step:last-child{ padding-bottom:0; }
.step::before{
  content:""; position:absolute; left:21px; top:46px; bottom:2px;
  width:2px; background:var(--line);
}
.step:last-child::before{ display:none; }
.step-num{
  position:absolute; left:0; top:0;
  width:44px; height:44px; border-radius:50%;
  display:grid; place-items:center;
  font-size:.875rem; font-weight:800; font-variant-numeric:tabular-nums;
  background:var(--white); color:var(--ink);
  border:1.5px solid var(--line);
  transition:background-color .2s ease, color .2s ease, border-color .2s ease;
}
.step.is-done .step-num{ background:var(--ink); color:#fff; border-color:var(--ink); }
.step.is-current .step-num{ background:var(--orange); color:#fff; border-color:var(--orange); box-shadow:0 8px 20px rgba(240,90,38,.3); }
.step:hover .step-num{ border-color:var(--ink); }
.step h3{ margin-bottom:8px; }
.step p{ color:var(--text); max-width:34em; }
.step .step-tag{
  display:inline-block; margin-left:10px; vertical-align:middle;
  padding:3px 10px; border-radius:var(--pill);
  font-size:.75rem; font-weight:600;
  background:rgba(31,211,176,.14); color:#0E7A64;
}
.step.is-current .step-tag{ background:rgba(240,90,38,.12); color:var(--orange); }

/* ---------- Split block ---------- */
.split{ display:grid; gap:28px; align-items:center; }
@media (min-width:900px){ .split{ grid-template-columns:1fr 1fr; gap:48px; } }
.split.reverse .split-media{ order:2; }
@media (min-width:900px){ .split.reverse .split-media{ order:2; } .split.reverse .split-body{ order:1; } }
.split-media{ border-radius:var(--r-m); overflow:hidden; border:1px solid var(--line); box-shadow:var(--sh-1); aspect-ratio:4/3; }
.split-media img{ width:100%; height:100%; object-fit:cover; }
.split-body h3{ font-size:clamp(1.35rem,2.2vw,1.75rem); margin-bottom:14px; }
.split-body p{ color:var(--text); }
.split-list{ margin-top:18px; display:grid; gap:12px; }
.split-list li{ display:flex; gap:10px; font-size:.9375rem; color:var(--text); }
.split-list li::before{
  content:""; flex:0 0 auto; width:8px; height:8px; margin-top:10px;
  border-radius:50%; background:var(--cyan);
}

/* ---------- Check list ---------- */
.check-list{ margin-top:8px; }
.check-list > .cell{ margin-bottom:20px; }
.check-item{
  display:flex; gap:14px; height:100%;
  padding:22px 24px;
  background:var(--white); border:1px solid var(--line);
  border-radius:var(--r-m); box-shadow:var(--sh-1);
  transition:transform .2s ease, box-shadow .2s ease, border-color .2s ease;
}
.check-item:hover{ transform:translateY(-3px); box-shadow:var(--sh-2); border-color:rgba(11,58,46,.18); }
.check-icon{
  flex:0 0 auto; width:30px; height:30px; border-radius:50%;
  display:grid; place-items:center; background:rgba(31,211,176,.16);
  color:#0E7A64; font-size:.8125rem; font-weight:800;
}
.check-item h3{ font-size:1rem; margin-bottom:6px; }
.check-item p{ font-size:.9375rem; color:var(--muted); }

/* ---------- Tips ---------- */
.tip-list{ border-top:1px solid var(--line); margin-top:8px; }
.tip-card{
  position:relative;
  padding:24px 24px 24px 28px;
  border-bottom:1px solid var(--line);
  border-left:4px solid var(--orange);
  background:var(--white);
  transition:background-color .2s ease, transform .2s ease;
}
.tip-card:hover{ background:var(--wash); transform:translateX(4px); }
.tip-card:first-child{ border-radius:var(--r-m) var(--r-m) 0 0; }
.tip-card:last-child{ border-radius:0 0 var(--r-m) var(--r-m); border-bottom:0; }
.tip-card h3{ font-size:1.0625rem; margin-bottom:8px; }
.tip-card p{ font-size:.9375rem; color:var(--text); }
.tip-card .tip-label{
  display:inline-block; margin-bottom:10px;
  font-size:.75rem; font-weight:700; letter-spacing:.06em;
  color:var(--muted);
}

/* ---------- FAQ ---------- */
.faq-layout{ display:grid; gap:32px; }
@media (min-width:1024px){ .faq-layout{ grid-template-columns:4fr 8fr; gap:56px; align-items:start; } }
.faq-aside{ position:sticky; top:96px; }
@media (max-width:1023px){ .faq-aside{ position:static; } }
.faq-aside p{ margin-top:14px; color:var(--muted); }
.faq-accordion{ margin:0; background:transparent; border-top:1px solid var(--line); }
.faq-accordion .accordion-item{ border:0; border-bottom:1px solid var(--line); background:transparent; }
.faq-accordion .accordion-title{
  position:relative; display:block;
  padding:22px 44px 22px 0;
  font-size:1.0625rem; font-weight:600; color:var(--title);
  background:transparent; border:0; line-height:1.5;
  transition:color .16s ease;
}
.faq-accordion .accordion-title:hover{ color:var(--ink); }
.faq-accordion .accordion-title::before{
  content:"+"; position:absolute; right:6px; top:50%;
  transform:translateY(-50%);
  font-size:1.375rem; font-weight:400; color:var(--ink);
  transition:color .2s ease, transform .2s ease;
}
.faq-accordion .accordion-item.is-active .accordion-title::before{ content:"–"; color:var(--orange); transform:translateY(-50%) rotate(180deg); }
.faq-accordion .accordion-title:focus{ outline:none; }
.faq-accordion .accordion-title:focus-visible{ outline:2px solid var(--cyan); outline-offset:2px; border-radius:8px; }
.faq-accordion .accordion-content{
  padding:0 44px 24px 0; border:0; background:transparent;
  font-size:.9375rem; line-height:1.9; color:var(--text);
}
.faq-accordion .accordion-content p{ margin:0; }

/* ---------- CTA ---------- */
.cta-band{
  background:linear-gradient(120deg, var(--ink) 0%, var(--ink-deep) 100%);
  color:#fff; padding-block:var(--sec-y);
}
.cta-band h2{ color:#fff; }
.cta-band p{ color:rgba(255,255,255,.78); margin-top:14px; max-width:34em; }
.cta-band .btn-row{ margin-top:28px; }
.cta-inner{ display:flex; flex-wrap:wrap; gap:28px; align-items:center; justify-content:space-between; }

/* ---------- Footer ---------- */
.site-footer{
  background:var(--ink); color:rgba(255,255,255,.7);
  padding-block:56px 28px; font-size:.9375rem;
}
.footer-grid{ display:grid; gap:32px; }
@media (min-width:640px){ .footer-grid{ grid-template-columns:repeat(2,1fr); } }
@media (min-width:1024px){ .footer-grid{ grid-template-columns:1.4fr 1fr 1fr 1.2fr; gap:40px; } }
.footer-brand .logo-text{ color:#fff; }
.footer-brand p{ margin-top:16px; max-width:26em; color:rgba(255,255,255,.7); }
.footer-col h4{
  color:#fff; font-size:.9375rem; font-weight:700; margin-bottom:16px;
  letter-spacing:.02em;
}
.footer-col ul{ display:grid; gap:10px; }
.footer-col a{ color:rgba(255,255,255,.7); }
.footer-col a:hover{ color:#fff; text-decoration:underline; text-underline-offset:3px; }
.footer-contact li{ display:flex; gap:10px; color:rgba(255,255,255,.7); }
.footer-contact strong{ color:#fff; font-weight:600; }
.footer-bottom{
  margin-top:40px; padding-top:22px;
  border-top:1px solid rgba(255,255,255,.14);
  display:flex; flex-wrap:wrap; gap:10px 24px;
  justify-content:space-between; align-items:center;
  font-size:.8125rem; color:rgba(255,255,255,.6);
}
.footer-bottom a{ color:rgba(255,255,255,.6); }
.footer-bottom a:hover{ color:#fff; }

/* ---------- Floating CTA ---------- */
.float-cta{
  position:fixed; right:24px; bottom:24px; z-index:75;
  display:inline-flex; align-items:center; gap:8px;
  padding:14px 22px; border-radius:var(--pill);
  background:var(--orange); color:#fff;
  font-size:.9375rem; font-weight:700;
  box-shadow:0 14px 34px rgba(240,90,38,.36);
  opacity:0; transform:translateY(14px); pointer-events:none;
  transition:opacity .28s ease, transform .28s ease, box-shadow .28s ease;
}
.float-cta svg{ width:18px; height:18px; stroke:currentColor; fill:none; stroke-width:2; }
.float-cta.is-visible{ opacity:1; transform:translateY(0); pointer-events:auto; }
.float-cta:hover{ color:#fff; transform:translateY(-2px); box-shadow:0 20px 42px rgba(240,90,38,.42); }
.float-cta:focus-visible{ outline:2px solid var(--cyan); outline-offset:2px; }
@media (max-width:1023px){
  .float-cta{
    right:auto; left:50%; bottom:calc(60px + env(safe-area-inset-bottom) + 16px);
    transform:translate(-50%,14px);
  }
  .float-cta.is-visible{ transform:translate(-50%,0); }
}

/* ---------- Mobile tab bar ---------- */
.tab-bar{
  position:fixed; left:0; right:0; bottom:0; z-index:78;
  display:grid; grid-template-columns:repeat(5,1fr);
  height:calc(60px + env(safe-area-inset-bottom));
  padding-bottom:env(safe-area-inset-bottom);
  background:rgba(255,255,255,.97);
  backdrop-filter:blur(12px); -webkit-backdrop-filter:blur(12px);
  border-top:1px solid var(--line);
}
.tab-bar a{
  position:relative;
  display:flex; flex-direction:column; align-items:center; justify-content:center;
  gap:3px; padding-top:6px;
  font-size:.6875rem; font-weight:600; color:var(--muted);
}
.tab-bar a svg{ width:22px; height:22px; stroke:currentColor; fill:none; stroke-width:1.7; stroke-linecap:round; stroke-linejoin:round; }
.tab-bar a.is-active{ color:var(--ink); }
.tab-bar a.is-active::before{
  content:""; position:absolute; top:0; width:26px; height:2px;
  border-radius:2px; background:var(--orange);
}
@media (min-width:1024px){ .tab-bar{ display:none; } }

/* ---------- Reveal animation ---------- */
.reveal{ opacity:0; transform:translateY(14px); transition:opacity .42s cubic-bezier(.2,.7,.3,1), transform .42s cubic-bezier(.2,.7,.3,1); }
.reveal.is-in{ opacity:1; transform:none; }
.no-js .reveal, .reveal.is-in{ opacity:1; transform:none; }
@media (prefers-reduced-motion: reduce){
  html{ scroll-behavior:auto; }
  *,*::before,*::after{ transition:none !important; animation:none !important; }
  .reveal{ opacity:1 !important; transform:none !important; }
}
:target, section[id]{ scroll-margin-top:82px; }

/* roulang page: category2 */
:root{
  --green:#0B3A2E;
  --green-soft:rgba(11,58,46,.06);
  --green-soft2:rgba(11,58,46,.08);
  --orange:#F05A26;
  --cyan:#1FD3B0;
  --cyan-soft:rgba(31,211,176,.12);
  --bg:#F7F5F0;
  --white:#FFFFFF;
  --t1:#131719;
  --t2:#3A4247;
  --t3:#6E767C;
  --line:#E3DED4;
  --r-sm:8px;
  --r-md:16px;
  --r-lg:24px;
  --r-pill:999px;
  --sh1:0 1px 2px rgba(19,23,25,.06);
  --sh2:0 14px 34px rgba(11,58,46,.14);
  --wrap:1240px;
  --hh:76px;
}

*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:system-ui,-apple-system,"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Helvetica Neue",Arial,sans-serif;
  font-size:1.0625rem;
  line-height:1.85;
  color:var(--t2);
  background:var(--bg);
  text-align:start;
  padding-top:var(--hh);
  padding-bottom:calc(60px + env(safe-area-inset-bottom));
  overflow-x:hidden;
}
img{max-width:100%;display:block;border-style:none;}
a{color:var(--green);text-decoration:none;background-color:transparent;}
button,input,select,textarea{font:inherit;color:inherit;}
h1,h2,h3,h4,p,ul,ol,figure,blockquote{margin:0;}
ul,ol{padding:0;list-style:none;}
h1{font-size:clamp(2.1rem,4.6vw,3.6rem);line-height:1.15;font-weight:800;letter-spacing:-.02em;color:var(--t1);}
h2{font-size:clamp(1.6rem,3vw,2.4rem);line-height:1.2;font-weight:800;letter-spacing:-.01em;color:var(--t1);}
h3{font-size:1.25rem;line-height:1.35;font-weight:700;color:var(--t1);}
p{max-width:34em;}
:focus-visible{outline:2px solid var(--cyan);outline-offset:2px;}
html{scroll-padding-top:96px;}

.container{width:100%;max-width:var(--wrap);margin-inline:auto;padding-inline:20px;}
@media(min-width:640px){.container{padding-inline:32px;}}

.section{padding-block:56px;}
@media(min-width:640px){.section{padding-block:72px;}}
@media(min-width:1024px){.section{padding-block:96px;}}
.section--dark{background:var(--green);color:rgba(255,255,255,.78);}
.section--white{background:var(--white);}
.section-head{max-width:640px;margin-bottom:32px;}
.section-head p{margin-top:12px;color:var(--t2);}
.section--dark .section-head p{color:rgba(255,255,255,.72);}
.eyebrow{display:inline-flex;align-items:center;gap:8px;font-size:.8125rem;font-weight:700;letter-spacing:.08em;color:var(--orange);text-transform:uppercase;margin-bottom:14px;}
.eyebrow::before{content:"";width:22px;height:2px;background:var(--orange);display:block;}

/* ---------- header ---------- */
.site-header{
  position:fixed;top:0;left:0;right:0;z-index:100;
  background:rgba(247,245,240,.88);
  -webkit-backdrop-filter:blur(12px);
  backdrop-filter:blur(12px);
  border-bottom:1px solid transparent;
  transition:background .24s ease,border-color .24s ease,box-shadow .24s ease;
}
.site-header.is-scrolled{background:#fff;border-bottom-color:var(--line);box-shadow:0 6px 20px rgba(19,23,25,.05);}
.header-inner{display:flex;align-items:center;justify-content:space-between;gap:20px;height:var(--hh);transition:height .24s ease;}
.site-header.is-scrolled .header-inner{height:60px;}

.logo{display:inline-flex;align-items:center;gap:10px;flex:0 0 auto;}
.logo-mark{width:32px;height:32px;border-radius:10px;background:var(--green);display:flex;align-items:center;justify-content:center;flex:0 0 auto;transition:width .24s ease,height .24s ease;}
.site-header.is-scrolled .logo-mark{width:28px;height:28px;}
.logo-mark svg{width:18px;height:18px;}
.logo-text{display:flex;flex-direction:column;line-height:1.15;}
.logo-text b{font-size:.9375rem;font-weight:800;color:var(--green);letter-spacing:-.01em;white-space:nowrap;}
.logo-text span{font-size:.6875rem;color:var(--t3);letter-spacing:.06em;white-space:nowrap;}

.main-nav{display:none;}
@media(min-width:1024px){
  .main-nav{display:block;margin-left:auto;}
}
.main-nav ul{display:flex;align-items:center;gap:30px;}
.main-nav a{position:relative;display:inline-block;padding:8px 2px;font-size:.9375rem;font-weight:600;color:var(--t2);transition:color .16s ease;}
.main-nav a::after{content:"";position:absolute;left:0;right:0;bottom:2px;height:3px;border-radius:3px;background:var(--orange);transform:scaleX(0);transform-origin:left;transition:transform .2s ease;}
.main-nav a:hover{color:var(--green);}
.main-nav a:hover::after{transform:scaleX(.5);}
.main-nav a.is-active{color:var(--green);}
.main-nav a.is-active::after{transform:scaleX(1);}

.header-cta{display:none;}
@media(min-width:1024px){.header-cta{display:inline-flex;}}

.nav-toggle{
  width:44px;height:44px;border-radius:12px;border:1px solid var(--line);background:#fff;
  display:inline-flex;align-items:center;justify-content:center;cursor:pointer;color:var(--green);
}
.nav-toggle i{font-size:1.05rem;}
@media(min-width:1024px){.nav-toggle{display:none;}}

.mobile-menu{
  display:none;border-top:1px solid var(--line);background:#fff;
}
.mobile-menu.is-open{display:block;}
.mobile-menu ul{padding:8px 0 16px;}
.mobile-menu a{display:block;padding:14px 0;font-size:1rem;font-weight:600;color:var(--t2);border-bottom:1px solid var(--line);}
.mobile-menu li:last-child a{border-bottom:0;}
.mobile-menu a.is-active{color:var(--orange);}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:14px 28px;border-radius:var(--r-pill);font-size:.9375rem;font-weight:700;
  border:1.5px solid transparent;cursor:pointer;line-height:1.2;
  transition:transform .2s ease,box-shadow .2s ease,background-color .2s ease,color .2s ease,border-color .2s ease,filter .2s ease;
}
.btn-primary{background:var(--orange);color:#fff;box-shadow:0 8px 20px rgba(240,90,38,.26);}
.btn-primary:hover,.btn-primary:focus-visible{filter:brightness(.94);transform:translateY(-2px);box-shadow:0 14px 30px rgba(240,90,38,.32);color:#fff;}
.btn-outline{background:transparent;color:var(--green);border-color:var(--green);}
.btn-outline:hover,.btn-outline:focus-visible{background:var(--green-soft2);transform:translateY(-2px);color:var(--green);}
.btn-ghost-light{background:transparent;color:#fff;border-color:rgba(255,255,255,.6);}
.btn-ghost-light:hover,.btn-ghost-light:focus-visible{background:#fff;color:var(--green);border-color:#fff;transform:translateY(-2px);}
.btn-sm{padding:10px 20px;font-size:.875rem;}
.btn-row{display:flex;flex-wrap:wrap;gap:14px;margin-top:26px;}

.text-link{color:var(--green);font-weight:700;text-decoration:underline;text-underline-offset:3px;text-decoration-thickness:1px;transition:color .16s ease;}
.text-link:hover{color:var(--orange);}

/* ---------- breadcrumb ---------- */
.breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:.8125rem;color:var(--t3);margin-bottom:16px;}
.breadcrumb a{color:var(--t3);transition:color .16s ease;}
.breadcrumb a:hover{color:var(--green);}
.breadcrumb .sep{color:#b9b3a8;}
.breadcrumb .current{color:var(--t2);font-weight:600;}

/* ---------- page hero ---------- */
.page-hero{background:linear-gradient(180deg,#fff 0%,var(--bg) 100%);border-bottom:1px solid var(--line);padding-top:36px;padding-bottom:0;overflow:hidden;}
.page-hero-inner{display:grid;gap:28px;}
@media(min-width:1024px){
  .page-hero-inner{grid-template-columns:minmax(0,6fr) minmax(0,5fr);gap:48px;align-items:center;}
  .page-hero{padding-top:56px;}
}
.page-hero h1{margin-bottom:16px;}
.page-hero .lead{font-size:1.0625rem;color:var(--t2);max-width:32em;}
.pill-row{display:flex;flex-wrap:wrap;gap:10px;margin-top:24px;}
.pill{
  display:inline-flex;align-items:center;padding:8px 16px;border-radius:var(--r-pill);
  background:#fff;border:1px solid var(--line);font-size:.8125rem;font-weight:600;color:var(--t2);
}
.pill.is-on{background:var(--cyan-soft);border-color:rgba(31,211,176,.4);color:#0d8f77;}
.hero-banner{margin-top:32px;position:relative;border-radius:var(--r-lg);overflow:hidden;border:1px solid var(--line);box-shadow:var(--sh2);}
.hero-banner img{width:100%;aspect-ratio:16/9;object-fit:cover;}
@media(min-width:1024px){.hero-banner{margin-top:0;}}

/* ---------- steps ---------- */
.steps{display:grid;gap:0;margin-top:8px;}
.step{display:grid;grid-template-columns:auto minmax(0,1fr);gap:18px;padding:22px 0;border-bottom:1px solid var(--line);}
.step:first-child{padding-top:0;}
.step:last-child{border-bottom:0;}
.step-dot{width:34px;height:34px;border-radius:50%;display:flex;align-items:center;justify-content:center;font-weight:800;font-size:.875rem;color:#fff;background:var(--green);}
.step.is-current .step-dot{background:var(--orange);}
.step h3{margin-bottom:8px;}
.step p{font-size:.9375rem;color:var(--t2);}
.step-lines{position:relative;}

.demo-grid{display:grid;gap:24px;}
@media(min-width:768px){.demo-grid{grid-template-columns:repeat(3,minmax(0,1fr));}}
.demo-card{background:#fff;border:1px solid var(--line);border-radius:var(--r-md);overflow:hidden;box-shadow:var(--sh1);transition:transform .2s ease,box-shadow .2s ease;}
.demo-card:hover{transform:translateY(-3px);box-shadow:var(--sh2);}
.demo-card img{width:100%;aspect-ratio:4/3;object-fit:cover;}
.demo-card .demo-body{padding:20px;}
.demo-card h3{margin-bottom:8px;}
.demo-card p{font-size:.9375rem;color:var(--t2);}

/* ---------- feature cards ---------- */
.card-grid{display:grid;gap:24px;}
@media(min-width:640px){.card-grid{grid-template-columns:repeat(2,minmax(0,1fr));}}
@media(min-width:1024px){.card-grid{grid-template-columns:repeat(3,minmax(0,1fr));}}
.feature-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-md);overflow:hidden;
  box-shadow:var(--sh1);display:flex;flex-direction:column;
  transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.feature-card:hover{transform:translateY(-3px);box-shadow:var(--sh2);border-color:#d6cfc2;}
.feature-card img{width:100%;aspect-ratio:16/9;object-fit:cover;}
.feature-body{padding:24px;display:flex;flex-direction:column;gap:10px;flex:1;}
.feature-body p{font-size:.9375rem;color:var(--t2);}
.feature-foot{margin-top:auto;padding-top:6px;}

.badge{display:inline-flex;align-items:center;gap:6px;padding:5px 12px;border-radius:var(--r-pill);font-size:.8125rem;font-weight:600;}
.badge-cyan{background:var(--cyan-soft);color:#0d8f77;}
.badge-neutral{background:#f0ede7;color:var(--t3);}
.section--dark .badge-cyan{background:rgba(255,255,255,.14);color:#fff;}

/* ---------- table ---------- */
.table-wrap{overflow-x:auto;-webkit-overflow-scrolling:touch;border:1px solid var(--line);border-radius:var(--r-md);background:#fff;box-shadow:var(--sh1);}
table.cmp{width:100%;min-width:680px;border-collapse:collapse;margin:0;font-size:.9375rem;}
table.cmp caption{text-align:left;padding:18px 24px 0;color:var(--t3);font-size:.8125rem;}
table.cmp th,table.cmp td{padding:16px 20px;text-align:left;border-bottom:1px solid var(--line);vertical-align:top;}
table.cmp thead th{background:var(--green);color:#fff;font-weight:700;font-size:.9375rem;border-bottom:0;}
table.cmp tbody tr:nth-child(even){background:#faf8f4;}
table.cmp tbody tr:last-child td{border-bottom:0;}
table.cmp tbody th{font-weight:700;color:var(--t1);width:22%;}

/* ---------- compare cards ---------- */
.cmp-grid{display:grid;gap:24px;}
@media(min-width:900px){.cmp-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:28px;}}
.cmp-card{background:#fff;border:1px solid var(--line);border-radius:var(--r-md);padding:28px;box-shadow:var(--sh1);}
.cmp-card h3{margin:14px 0 14px;}
.cmp-card ul{display:grid;gap:12px;}
.cmp-card li{display:flex;gap:10px;align-items:flex-start;font-size:.9375rem;color:var(--t2);}
.cmp-card li i{color:var(--cyan);margin-top:6px;font-size:.8125rem;}
.cmp-card.is-muted li i{color:#b9b3a8;}

/* ---------- proof ---------- */
.proof-grid{display:grid;gap:28px;margin-bottom:40px;}
@media(min-width:768px){.proof-grid{grid-template-columns:repeat(3,minmax(0,1fr));gap:32px;}}
.stat{background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.14);border-radius:var(--r-md);padding:24px;}
.stat b{display:block;font-size:clamp(2rem,4vw,3rem);font-weight:800;line-height:1.1;color:#fff;font-variant-numeric:tabular-nums;}
.stat span{display:block;margin-top:8px;font-size:.9375rem;color:rgba(255,255,255,.72);}
.quote{display:grid;gap:24px;background:rgba(255,255,255,.05);border:1px solid rgba(255,255,255,.14);border-radius:var(--r-lg);overflow:hidden;}
@media(min-width:900px){.quote{grid-template-columns:minmax(0,5fr) minmax(0,7fr);align-items:center;}}
.quote img{width:100%;height:100%;object-fit:cover;aspect-ratio:16/9;}
.quote-body{padding:24px;border-left:3px solid var(--orange);}
.quote-body p{color:rgba(255,255,255,.86);font-size:1rem;}
.quote-body cite{display:block;margin-top:14px;font-style:normal;font-size:.875rem;color:rgba(255,255,255,.6);}

/* ---------- CTA ---------- */
.cta-band{background:var(--green);border-radius:var(--r-lg);padding:36px 24px;color:#fff;display:grid;gap:24px;}
@media(min-width:900px){.cta-band{grid-template-columns:minmax(0,1fr) auto;align-items:center;padding:48px 44px;gap:40px;}}
.cta-band h2{color:#fff;margin-bottom:12px;}
.cta-band p{color:rgba(255,255,255,.76);}
.cta-band .btn-row{margin-top:0;}

/* ---------- float cta ---------- */
.float-cta{
  position:fixed;right:24px;bottom:24px;z-index:120;
  display:inline-flex;align-items:center;gap:8px;padding:14px 22px;border-radius:var(--r-pill);
  background:var(--orange);color:#fff;font-size:.9375rem;font-weight:700;box-shadow:0 12px 28px rgba(240,90,38,.32);
  opacity:0;pointer-events:none;transform:translateY(12px);
  transition:opacity .3s ease,transform .3s ease,box-shadow .2s ease;
}
.float-cta.is-visible{opacity:1;pointer-events:auto;transform:translateY(0);}
.float-cta:hover{transform:translateY(-2px);box-shadow:0 18px 36px rgba(240,90,38,.4);color:#fff;}
@media(max-width:1023px){
  .float-cta{right:auto;left:50%;bottom:calc(76px + env(safe-area-inset-bottom));transform:translateX(-50%) translateY(12px);padding:12px 20px;font-size:.875rem;}
  .float-cta.is-visible{transform:translateX(-50%) translateY(0);}
  .float-cta:hover{transform:translateX(-50%) translateY(-2px);}
}

/* ---------- tabbar ---------- */
.tabbar{
  position:fixed;left:0;right:0;bottom:0;z-index:110;
  display:flex;background:#fff;border-top:1px solid var(--line);
  height:calc(60px + env(safe-area-inset-bottom));
  padding-bottom:env(safe-area-inset-bottom);
  box-shadow:0 -6px 18px rgba(19,23,25,.05);
}
@media(min-width:1024px){.tabbar{display:none;}}
.tabbar a{
  position:relative;flex:1;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:3px;
  font-size:.6875rem;color:var(--t3);font-weight:600;transition:color .16s ease;
}
.tabbar a svg{width:22px;height:22px;stroke:currentColor;fill:none;stroke-width:1.7;stroke-linecap:round;stroke-linejoin:round;}
.tabbar a::before{content:"";position:absolute;top:0;left:50%;transform:translateX(-50%) scaleX(0);width:28px;height:2px;border-radius:0 0 2px 2px;background:var(--orange);transition:transform .2s ease;}
.tabbar a.is-active{color:var(--orange);}
.tabbar a.is-active::before{transform:translateX(-50%) scaleX(1);}

/* ---------- footer ---------- */
.site-footer{background:var(--green);color:rgba(255,255,255,.7);padding-block:48px 24px;}
.footer-grid{display:grid;gap:32px;}
@media(min-width:640px){.footer-grid{grid-template-columns:repeat(2,minmax(0,1fr));}}
@media(min-width:1024px){.footer-grid{grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:40px;}}
.site-footer .logo-text b{color:#fff;}
.site-footer .logo-text span{color:rgba(255,255,255,.6);}
.site-footer .logo-mark{background:rgba(255,255,255,.12);}
.footer-about{margin-top:18px;font-size:.9375rem;color:rgba(255,255,255,.66);max-width:30em;}
.footer-col h4{font-size:.875rem;font-weight:700;color:#fff;letter-spacing:.06em;margin-bottom:16px;}
.footer-col ul{display:grid;gap:12px;}
.footer-col a{font-size:.9375rem;color:rgba(255,255,255,.7);transition:color .16s ease;}
.footer-col a:hover{color:#fff;}
.footer-col p{font-size:.9375rem;color:rgba(255,255,255,.7);max-width:26em;}
.footer-bottom{margin-top:40px;padding-top:20px;border-top:1px solid rgba(255,255,255,.14);display:flex;flex-wrap:wrap;gap:10px 24px;justify-content:space-between;font-size:.8125rem;color:rgba(255,255,255,.55);}

/* ---------- reveal ---------- */
html.js .reveal{opacity:0;transform:translateY(14px);transition:opacity .42s cubic-bezier(.2,.7,.3,1),transform .42s cubic-bezier(.2,.7,.3,1);transition-delay:var(--d,0s);}
html.js .reveal.is-in{opacity:1;transform:none;}

@media (prefers-reduced-motion: reduce){
  html{scroll-behavior:auto;}
  html.js .reveal{opacity:1;transform:none;transition:none;}
  *,*::before,*::after{transition-duration:.001ms !important;animation-duration:.001ms !important;}
}

/* roulang page: category3 */
:root{
  --brand:#0B3A2E;
  --brand-700:#0d4636;
  --brand-900:#082B22;
  --accent:#F05A26;
  --cyan:#1FD3B0;
  --bg:#F7F5F0;
  --card:#FFFFFF;
  --ink:#131719;
  --body:#3A4247;
  --muted:#6E767C;
  --line:#E3DED4;
  --hover:rgba(11,58,46,.06);
  --r-s:8px;
  --r-m:16px;
  --r-l:24px;
  --r-p:999px;
  --sh-1:0 1px 2px rgba(19,23,25,.06);
  --sh-2:0 14px 34px rgba(11,58,46,.14);
  --sec-y:56px;
  --header-h:76px;
}
@media (min-width:640px){:root{--sec-y:72px}}
@media (min-width:1024px){:root{--sec-y:96px;--header-h:76px}}

*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:system-ui,-apple-system,"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Helvetica Neue",Arial,sans-serif;
  font-size:1.0625rem;
  line-height:1.85;
  color:var(--body);
  background:var(--bg);
  text-align:start;
  overflow-x:hidden;
  padding-bottom:72px;
}
@media (min-width:1024px){body{padding-bottom:0}}
h1,h2,h3,h4{margin:0;color:var(--ink);font-weight:800;line-height:1.25;letter-spacing:-0.01em}
h1{font-size:clamp(2.1rem,4.6vw,3.6rem);line-height:1.15;letter-spacing:-0.02em}
h2{font-size:clamp(1.6rem,3vw,2.4rem);line-height:1.2}
h3{font-size:1.25rem;line-height:1.35;font-weight:700}
h4{font-size:1.0625rem;line-height:1.4;font-weight:700}
p{margin:0 0 1.15em;max-width:34em}
p:last-child{margin-bottom:0}
img{max-width:100%;height:auto;display:block}
a{color:var(--brand);text-decoration:none;transition:color .16s ease}
ul,ol{margin:0;padding:0;list-style:none}
button{font:inherit;cursor:pointer}
input,select,textarea{font:inherit;color:inherit}
:focus-visible{outline:2px solid var(--cyan);outline-offset:2px;border-radius:6px}
::selection{background:rgba(240,90,38,.22)}

.container{width:100%;max-width:1240px;margin:0 auto;padding:0 20px}
@media (min-width:1024px){.container{padding:0 32px}}
.narrow{max-width:900px}
.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap;border:0}

.section{padding:var(--sec-y) 0}
.section--white{background:#fff}
.section--dark{background:var(--brand);color:rgba(255,255,255,.82)}
.section--dark h2,.section--dark h3{color:#fff}
[id]{scroll-margin-top:96px}

.section-head{max-width:34em;margin-bottom:28px}
.section-head p{color:var(--muted);margin-top:12px}
.section--dark .section-head p{color:rgba(255,255,255,.72)}
.section-head--split{display:flex;flex-direction:column;gap:12px;max-width:none;margin-bottom:28px}
@media (min-width:900px){
  .section-head--split{flex-direction:row;align-items:flex-end;justify-content:space-between;gap:32px}
  .section-head--split .section-head-text{max-width:34em}
}

/* ===== Header ===== */
.site-header{
  position:fixed;top:0;left:0;right:0;z-index:70;
  height:var(--header-h);
  background:rgba(247,245,240,.88);
  -webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);
  border-bottom:1px solid transparent;
  transition:height .25s ease,background .25s ease,border-color .25s ease;
}
.site-header.is-scrolled{height:60px;background:#F7F5F0;border-bottom-color:var(--line)}
.header-inner{display:flex;align-items:center;justify-content:space-between;gap:16px;height:100%}
.logo{display:inline-flex;align-items:center;gap:10px;color:var(--ink);flex:0 0 auto}
.logo-mark{
  width:32px;height:32px;border-radius:10px;background:var(--brand);
  display:inline-flex;align-items:center;justify-content:center;flex:0 0 auto;
}
.logo-mark svg{width:18px;height:18px;display:block}
.logo-text{font-size:1.0625rem;font-weight:800;letter-spacing:-0.01em;white-space:nowrap}
@media (max-width:767px){.logo-text{font-size:.9375rem}}
@media (min-width:1024px){.logo-mark{width:34px;height:34px}}

.main-nav{display:none}
.main-nav ul{display:flex;align-items:center;gap:26px}
.main-nav a{
  position:relative;display:inline-block;padding:6px 2px;
  font-size:.9375rem;font-weight:600;color:var(--body);
}
.main-nav a::after{
  content:"";position:absolute;left:0;bottom:0;height:3px;width:0;
  background:var(--brand);border-radius:2px;transition:width .2s ease;
}
.main-nav a:hover{color:var(--brand)}
.main-nav a:hover::after{width:100%}
.main-nav a.is-active{color:var(--brand)}
.main-nav a.is-active::after{width:100%;background:var(--accent)}

.header-actions{display:flex;align-items:center;gap:12px;flex:0 0 auto}
.header-cta{display:none}
@media (max-width:639px){.header-cta{display:none}}

.nav-toggle{
  display:inline-flex;flex-direction:column;justify-content:center;gap:5px;
  width:44px;height:44px;padding:0 10px;border:1px solid var(--line);
  background:#fff;border-radius:12px;
}
.nav-toggle span{display:block;height:2px;width:100%;background:var(--brand);border-radius:2px;transition:transform .2s ease,opacity .2s ease}
.nav-toggle[aria-expanded="true"] span:nth-child(1){transform:translateY(7px) rotate(45deg)}
.nav-toggle[aria-expanded="true"] span:nth-child(2){opacity:0}
.nav-toggle[aria-expanded="true"] span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}

@media (min-width:1024px){
  .main-nav{display:block}
  .nav-toggle{display:none}
  .header-cta{display:inline-flex}
}

.mobile-drawer{
  position:fixed;top:var(--header-h);left:0;right:0;z-index:69;
  background:#fff;border-bottom:1px solid var(--line);
  box-shadow:0 18px 40px rgba(11,58,46,.12);
  max-height:0;overflow:hidden;transition:max-height .28s ease;
}
.mobile-drawer.is-open{max-height:420px}
.mobile-drawer ul{padding:12px 20px 20px}
.mobile-drawer a{
  display:flex;align-items:center;gap:12px;padding:14px 4px;
  font-size:1rem;font-weight:600;color:var(--ink);border-bottom:1px solid var(--line);
}
.mobile-drawer a i{width:20px;color:var(--brand);font-size:.95rem}
.mobile-drawer li:last-child a{border-bottom:0}
.mobile-drawer a.is-active{color:var(--accent)}
.mobile-drawer a.is-active i{color:var(--accent)}
@media (min-width:1024px){.mobile-drawer{display:none}}

/* ===== Buttons ===== */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:14px 28px;border:0;border-radius:var(--r-p);
  font-size:.95rem;font-weight:700;line-height:1;text-align:center;
  transition:transform .2s ease,box-shadow .2s ease,background .2s ease,color .2s ease,filter .2s ease;
}
.btn-primary{background:var(--accent);color:#fff;box-shadow:0 8px 20px rgba(240,90,38,.24)}
.btn-primary:hover{filter:brightness(.94);transform:translateY(-2px);box-shadow:0 12px 26px rgba(240,90,38,.32)}
.btn-primary:active{transform:translateY(0);filter:brightness(.9)}
.btn-ghost{background:transparent;color:var(--brand);border:1.5px solid var(--brand)}
.btn-ghost:hover{background:rgba(11,58,46,.08);transform:translateY(-2px)}
.btn-ghost-light{background:transparent;color:#fff;border:1.5px solid rgba(255,255,255,.72)}
.btn-ghost-light:hover{background:#fff;color:var(--brand);transform:translateY(-2px)}
.btn-sm{padding:10px 20px;font-size:.875rem}
.btn-block{width:100%}

.text-link{color:var(--brand);font-weight:600;text-decoration:underline;text-underline-offset:3px;text-decoration-thickness:1px}
.text-link:hover{color:var(--accent)}

/* ===== Badges ===== */
.badge{
  display:inline-flex;align-items:center;gap:6px;
  padding:4px 12px;border-radius:var(--r-p);
  font-size:.8125rem;font-weight:600;line-height:1.6;
  background:rgba(31,211,176,.12);color:#0f8a72;
}
.badge--neutral{background:#F1EFE9;color:var(--muted)}
.badge--light{background:rgba(255,255,255,.16);color:#fff}

/* ===== Page hero ===== */
.page-hero{
  position:relative;
  padding:120px 0 64px;
  background:
    linear-gradient(120deg,rgba(11,58,46,.92),rgba(11,58,46,.72)),
    url("/assets/images/backpic/back-2.webp") center/cover no-repeat;
  color:#fff;
}
@media (min-width:1024px){.page-hero{padding:172px 0 96px}}
.page-hero h1{color:#fff}
.page-hero .lede{color:rgba(255,255,255,.82);font-size:1.0625rem;margin-top:16px;max-width:36em}
.breadcrumb{
  display:flex;flex-wrap:wrap;align-items:center;gap:8px;
  font-size:.8125rem;color:rgba(255,255,255,.68);margin-bottom:16px;
}
.breadcrumb a{color:rgba(255,255,255,.8);text-decoration:underline;text-underline-offset:3px}
.breadcrumb a:hover{color:#fff}
.breadcrumb .sep{color:rgba(255,255,255,.42)}
.breadcrumb .current{color:rgba(255,255,255,.68)}
.hero-search{
  display:flex;align-items:center;gap:10px;
  margin-top:28px;padding:6px 6px 6px 18px;
  background:#fff;border-radius:var(--r-p);
  max-width:520px;box-shadow:0 16px 40px rgba(4,26,20,.28);
}
.hero-search i{color:var(--muted);font-size:.95rem}
.hero-search input{
  flex:1 1 auto;min-width:0;height:44px;border:0;background:transparent;
  font-size:.9375rem;color:var(--ink);outline:none;
}
.hero-search input::placeholder{color:#9aa1a6}
.hero-note{display:flex;flex-wrap:wrap;gap:10px 24px;margin-top:20px;font-size:.875rem;color:rgba(255,255,255,.72)}
.hero-note span{display:inline-flex;align-items:center;gap:8px}
.hero-note i{color:var(--cyan);font-size:.8125rem}

/* ===== Help topic cards ===== */
.help-grid{margin-top:4px}
.help-card{
  display:flex;flex-direction:column;gap:14px;
  height:100%;padding:26px;border:1px solid var(--line);border-radius:var(--r-m);
  background:var(--card);box-shadow:var(--sh-1);
  transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.help-card:hover{transform:translateY(-3px);box-shadow:var(--sh-2);border-color:rgba(11,58,46,.18)}
.help-card .icon-box{
  width:48px;height:48px;border-radius:14px;
  display:inline-flex;align-items:center;justify-content:center;
  background:rgba(11,58,46,.07);color:var(--brand);font-size:1.15rem;
}
.help-card p{color:var(--muted);font-size:.9375rem;margin:0}
.help-links{display:flex;flex-direction:column;gap:10px;margin-top:auto;padding-top:6px}
.help-links a{
  display:inline-flex;align-items:center;gap:8px;
  font-size:.9375rem;font-weight:600;color:var(--brand);
}
.help-links a i{font-size:.75rem;color:var(--accent);transition:transform .2s ease}
.help-links a:hover{color:var(--accent)}
.help-links a:hover i{transform:translateX(3px)}

/* ===== Steps / points list ===== */
.point-grid{display:grid;grid-template-columns:1fr;gap:16px}
@media (min-width:640px){.point-grid{grid-template-columns:repeat(2,1fr);gap:20px}}
.point-item{
  display:flex;gap:14px;padding:20px;border:1px solid var(--line);
  border-radius:var(--r-m);background:var(--card);box-shadow:var(--sh-1);
}
.point-item i{color:var(--cyan);font-size:1rem;margin-top:6px}
.point-item h4{margin-bottom:6px}
.point-item p{font-size:.9375rem;color:var(--muted);margin:0}

/* ===== Accordion ===== */
.faq-layout{display:grid;grid-template-columns:1fr;gap:28px}
@media (min-width:1024px){
  .faq-layout{grid-template-columns:4fr 8fr;gap:48px;align-items:start}
  .faq-aside{position:sticky;top:104px}
}
.faq-aside p{color:var(--muted);font-size:.9375rem}
.faq-aside .aside-tip{
  margin-top:20px;padding:18px 20px;border-left:3px solid var(--accent);
  background:#fff;border-radius:0 var(--r-s) var(--r-s) 0;font-size:.9375rem;color:var(--body);
  box-shadow:var(--sh-1);
}
.custom-accordion{
  margin:0;border:1px solid var(--line);border-radius:var(--r-m);
  background:#fff;overflow:hidden;box-shadow:var(--sh-1);
}
.custom-accordion .accordion-item{background:#fff}
.custom-accordion .accordion-item + .accordion-item{border-top:1px solid var(--line)}
.custom-accordion .accordion-title{
  position:relative;display:block;padding:20px 58px 20px 22px;
  font-size:1.0625rem;font-weight:600;color:var(--ink);line-height:1.5;
  background:transparent;border:0;transition:background .18s ease,color .18s ease;
}
.custom-accordion .accordion-title:hover{background:var(--hover);color:var(--brand)}
.custom-accordion .accordion-title::before{
  content:"\f067";font-family:"Font Awesome 6 Free";font-weight:900;
  position:absolute;right:22px;top:50%;transform:translateY(-50%);
  color:var(--brand);font-size:.8125rem;
  transition:transform .24s ease,color .24s ease;
}
.custom-accordion .accordion-item.is-active .accordion-title{color:var(--brand);background:rgba(11,58,46,.03)}
.custom-accordion .accordion-item.is-active .accordion-title::before{
  transform:translateY(-50%) rotate(45deg);color:var(--accent);
}
.custom-accordion .accordion-content{
  padding:0 22px 22px;background:transparent;border:0;
  font-size:.9375rem;line-height:1.9;color:var(--body);
}
.custom-accordion .accordion-content p{font-size:.9375rem;line-height:1.9;color:var(--body);max-width:34em}

/* ===== Contact ===== */
.contact-layout{display:grid;grid-template-columns:1fr;gap:28px}
@media (min-width:900px){.contact-layout{grid-template-columns:7fr 5fr;gap:40px;align-items:start}}
.form-card{
  padding:26px;background:#fff;border:1px solid var(--line);
  border-radius:var(--r-m);box-shadow:var(--sh-1);
}
@media (min-width:640px){.form-card{padding:32px}}
.field{margin-bottom:20px}
.field label{display:block;font-size:.9375rem;font-weight:600;color:var(--ink);margin-bottom:8px}
.field .req{color:var(--accent);margin-left:4px}
.field input,.field select,.field textarea{
  width:100%;height:48px;padding:0 16px;
  border:1px solid var(--line);border-radius:12px;background:#fff;
  font-size:.9375rem;color:var(--ink);outline:none;
  transition:border-color .2s ease,box-shadow .2s ease;
}
.field textarea{height:auto;min-height:132px;padding:12px 16px;line-height:1.75;resize:vertical}
.field input:focus,.field select:focus,.field textarea:focus{
  border-color:var(--brand);box-shadow:0 0 0 3px rgba(31,211,176,.25);
}
.field input::placeholder,.field textarea::placeholder{color:#9aa1a6}
.field .hint{font-size:.8125rem;color:var(--muted);margin-top:6px}
.field.has-error input,.field.has-error select,.field.has-error textarea{border-color:var(--accent);box-shadow:0 0 0 3px rgba(240,90,38,.16)}
.field.has-error .hint{color:var(--accent)}
.form-msg{display:none;margin-bottom:18px;padding:12px 16px;border-radius:12px;font-size:.9375rem}
.form-msg.is-error{display:block;background:rgba(240,90,38,.1);color:#b13a11;border:1px solid rgba(240,90,38,.3)}
.form-msg.is-ok{display:block;background:rgba(31,211,176,.12);color:#0d7a65;border:1px solid rgba(31,211,176,.35)}

.contact-info{
  padding:26px;background:var(--brand);color:rgba(255,255,255,.82);
  border-radius:var(--r-m);box-shadow:var(--sh-1);
}
.contact-info h3{color:#fff;margin-bottom:16px}
.contact-info .info-row{display:flex;gap:14px;padding:14px 0;border-bottom:1px solid rgba(255,255,255,.14)}
.contact-info .info-row:last-of-type{border-bottom:0}
.contact-info .info-row i{color:var(--cyan);margin-top:6px;width:18px;text-align:center;font-size:.95rem}
.contact-info .info-row strong{display:block;color:#fff;font-size:.9375rem;font-weight:700;margin-bottom:2px}
.contact-info .info-row span{font-size:.875rem;color:rgba(255,255,255,.7);line-height:1.7;display:block}

/* ===== Cross cards ===== */
.cross-grid{display:grid;grid-template-columns:1fr;gap:20px}
@media (min-width:768px){.cross-grid{grid-template-columns:repeat(2,1fr);gap:28px}}
.cross-card{
  display:flex;flex-direction:column;overflow:hidden;
  background:#fff;border:1px solid var(--line);border-radius:var(--r-m);
  box-shadow:var(--sh-1);transition:transform .2s ease,box-shadow .2s ease;
}
.cross-card:hover{transform:translateY(-3px);box-shadow:var(--sh-2)}
.cross-card figure{margin:0;aspect-ratio:16/9;overflow:hidden;background:#EDEAE3}
.cross-card figure img{width:100%;height:100%;object-fit:cover;border-radius:0}
.cross-card .cross-body{padding:22px;display:flex;flex-direction:column;gap:10px;flex:1 1 auto}
.cross-card p{font-size:.9375rem;color:var(--muted);margin:0}
.cross-card .cross-link{margin-top:auto;padding-top:8px}

/* ===== Footer ===== */
.site-footer{background:var(--brand);color:rgba(255,255,255,.72);padding:56px 0 24px;font-size:.9375rem}
.footer-grid{display:grid;grid-template-columns:1fr;gap:32px}
@media (min-width:768px){.footer-grid{grid-template-columns:repeat(2,1fr)}}
@media (min-width:1024px){.footer-grid{grid-template-columns:1.4fr 1fr 1fr 1fr;gap:40px}}
.footer-brand .logo-text{color:#fff}
.footer-brand .logo-mark{background:rgba(255,255,255,.12)}
.footer-brand p{margin-top:14px;font-size:.875rem;color:rgba(255,255,255,.66);line-height:1.8;max-width:28em}
.footer-col h4{color:#fff;font-size:.9375rem;font-weight:700;margin-bottom:16px;letter-spacing:.01em}
.footer-col ul{display:flex;flex-direction:column;gap:12px}
.footer-col a{color:rgba(255,255,255,.72);font-size:.9375rem}
.footer-col a:hover{color:#fff;text-decoration:underline;text-underline-offset:3px}
.footer-col li span{color:rgba(255,255,255,.6);font-size:.9375rem}
.footer-bottom{
  margin-top:40px;padding-top:20px;border-top:1px solid rgba(255,255,255,.14);
  display:flex;flex-direction:column;gap:8px;
  font-size:.8125rem;color:rgba(255,255,255,.55);
}
@media (min-width:768px){.footer-bottom{flex-direction:row;justify-content:space-between;align-items:center}}

/* ===== Tab bar (mobile) ===== */
.tabbar{
  position:fixed;left:0;right:0;bottom:0;z-index:65;
  display:grid;grid-template-columns:repeat(5,1fr);
  height:calc(60px + env(safe-area-inset-bottom));
  padding-bottom:env(safe-area-inset-bottom);
  background:#fff;border-top:1px solid var(--line);
  box-shadow:0 -6px 24px rgba(11,58,46,.08);
}
@media (min-width:1024px){.tabbar{display:none}}
.tab-item{
  position:relative;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:3px;
  font-size:.6875rem;font-weight:600;color:var(--muted);
}
.tab-item i{font-size:1.375rem;line-height:1}
.tab-item::before{
  content:"";position:absolute;top:0;left:50%;transform:translateX(-50%);
  width:0;height:2px;background:var(--accent);transition:width .2s ease;
}
.tab-item.is-active{color:var(--brand)}
.tab-item.is-active i{color:var(--accent)}
.tab-item.is-active::before{width:26px}

/* ===== Floating CTA ===== */
.fab{
  position:fixed;z-index:66;right:24px;bottom:24px;
  display:inline-flex;align-items:center;gap:8px;
  padding:14px 22px;border-radius:var(--r-p);
  background:var(--accent);color:#fff;font-weight:700;font-size:.9375rem;line-height:1;
  box-shadow:0 12px 28px rgba(240,90,38,.32);
  opacity:0;visibility:hidden;pointer-events:none;
  transition:opacity .25s ease,visibility .25s ease,transform .2s ease,box-shadow .2s ease;
}
.fab.is-on{opacity:1;visibility:visible;pointer-events:auto}
.fab:hover{transform:translateY(-2px);box-shadow:0 16px 34px rgba(240,90,38,.42)}
@media (max-width:1023px){
  .fab{right:auto;left:50%;transform:translateX(-50%);bottom:calc(76px + env(safe-area-inset-bottom));padding:12px 20px;font-size:.875rem}
  .fab:hover{transform:translateX(-50%) translateY(-2px)}
}

/* ===== Reveal animation ===== */
.reveal{opacity:1;transform:none;transition:opacity .42s cubic-bezier(.2,.7,.3,1),transform .42s cubic-bezier(.2,.7,.3,1)}
html.js-ready .reveal:not(.is-visible){opacity:0;transform:translateY(14px)}
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  .reveal,html.js-ready .reveal:not(.is-visible){opacity:1 !important;transform:none !important;transition:none !important}
  .btn:hover,.fab:hover,.help-card:hover,.cross-card:hover{transform:none !important}
}