/* roulang page: index */
:root{
  --primary:#0E5E4F;
  --primary-dark:#0A4A3E;
  --secondary:#F59E0B;
  --secondary-light:#FCD34D;
  --bg:#F6F5F1;
  --card:#FFFFFF;
  --bg-light:#E9EFEB;
  --text:#1C1A17;
  --text-2:#57534E;
  --text-3:#8A857A;
  --border:#E2DED3;
  --radius-card:16px;
  --radius-btn:999px;
  --radius-input:12px;
  --shadow:0 1px 3px rgba(28,26,23,.06),0 4px 12px rgba(28,26,23,.05);
  --shadow-hover:0 8px 30px rgba(28,26,23,.12);
  --transition:300ms ease;
}
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{
  font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC","Source Han Sans SC",system-ui,sans-serif;
  font-size:16px;
  line-height:1.8;
  background:var(--bg);
  color:var(--text);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block}
a{color:var(--primary);text-decoration:none;transition:color var(--transition)}
a:hover{color:var(--primary-dark)}
ul,ol{list-style:none}
button,input,select,textarea{font:inherit;border:none;outline:none}
button{cursor:pointer}
.container{
  max-width:1200px;
  margin:0 auto;
  padding:0 24px;
}
/* ===== Header/Nav ===== */
.site-header{
  position:fixed;
  top:16px;
  left:0;
  right:0;
  z-index:100;
  padding:0 48px;
  transition:all .3s ease;
}
.nav-wrap{
  max-width:1200px;
  margin:0 auto;
  display:flex;
  align-items:center;
  justify-content:space-between;
  background:rgba(255,255,255,.86);
  backdrop-filter:blur(12px);
  -webkit-backdrop-filter:blur(12px);
  border-radius:999px;
  padding:8px 20px 8px 24px;
  box-shadow:0 1px 3px rgba(28,26,23,.06);
  transition:box-shadow .3s ease,background .3s ease;
}
.site-header.scrolled .nav-wrap{
  background:rgba(255,255,255,.92);
  box-shadow:0 8px 24px rgba(28,26,23,.10);
}
.logo{
  font-size:19px;
  font-weight:800;
  color:var(--primary);
  letter-spacing:.5px;
  white-space:nowrap;
}
.logo span{
  color:var(--secondary);
  font-weight:700;
}
.nav-links{
  display:flex;
  align-items:center;
  gap:6px;
}
.nav-links a{
  padding:8px 16px;
  border-radius:999px;
  font-size:14.5px;
  font-weight:500;
  color:var(--text-2);
  transition:background .2s,color .2s;
}
.nav-links a:hover{
  background:rgba(14,94,79,.08);
  color:var(--primary);
}
.nav-links a.active{
  background:var(--primary);
  color:#fff;
}
.nav-cta{
  display:flex;
  align-items:center;
  gap:8px;
}
.btn-login{
  width:40px;
  height:40px;
  border-radius:50%;
  display:flex;
  align-items:center;
  justify-content:center;
  background:rgba(14,94,79,.08);
  color:var(--primary);
  transition:background .2s,color .2s;
}
.btn-login:hover{
  background:var(--primary);
  color:#fff;
}
.btn-login svg{width:18px;height:18px}
.btn-nav{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  background:var(--secondary);
  color:var(--text);
  font-weight:600;
  font-size:14.5px;
  padding:10px 22px;
  border-radius:999px;
  transition:background .2s,transform .2s,box-shadow .2s;
  white-space:nowrap;
}
.btn-nav:hover{
  background:#D97706;
  color:#1C1A17;
  transform:translateY(-2px);
  box-shadow:0 4px 12px rgba(245,158,11,.3);
}
.hamburger{
  display:none;
  width:44px;
  height:44px;
  border-radius:12px;
  background:rgba(14,94,79,.08);
  align-items:center;
  justify-content:center;
  flex-direction:column;
  gap:5px;
}
.hamburger span{
  width:20px;
  height:2px;
  background:var(--primary);
  border-radius:2px;
  transition:transform .3s,opacity .3s;
}
.hamburger.is-active span:nth-child(1){transform:translateY(7px) rotate(45deg)}
.hamburger.is-active span:nth-child(2){opacity:0}
.hamburger.is-active span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}
/* ===== Hero ===== */
.hero{
  position:relative;
  min-height:85vh;
  display:flex;
  align-items:center;
  background:url('/assets/images/backpic/back-1.webp') center 25%/cover no-repeat;
}
.hero::before{
  content:'';
  position:absolute;
  inset:0;
  background:linear-gradient(180deg,rgba(10,30,25,.55) 0%,rgba(10,30,25,.75) 100%);
}
.hero-content{
  position:relative;
  z-index:2;
  max-width:640px;
  padding:140px 0 100px;
}
.hero-badge{
  display:inline-flex;
  align-items:center;
  gap:8px;
  background:rgba(245,158,11,.2);
  border:1px solid rgba(245,158,11,.4);
  color:var(--secondary-light);
  font-size:13px;
  font-weight:600;
  padding:6px 18px;
  border-radius:999px;
  margin-bottom:28px;
  letter-spacing:1px;
}
.hero-badge::before{
  content:'';
  width:6px;
  height:6px;
  border-radius:50%;
  background:var(--secondary);
  flex-shrink:0;
}
.hero h1{
  font-size:clamp(36px,5vw,56px);
  line-height:1.15;
  font-weight:800;
  color:#fff;
  margin-bottom:20px;
  letter-spacing:1px;
}
.hero h1 .highlight{
  color:var(--secondary-light);
}
.hero p{
  font-size:17px;
  color:rgba(255,255,255,.88);
  line-height:1.7;
  margin-bottom:36px;
  max-width:520px;
}
.hero-btns{
  display:flex;
  gap:16px;
  flex-wrap:wrap;
}
.btn-primary{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  background:var(--secondary);
  color:var(--text);
  font-weight:700;
  font-size:16px;
  padding:14px 32px;
  border-radius:999px;
  box-shadow:0 4px 16px rgba(245,158,11,.3);
  transition:all .3s;
  min-height:44px;
}
.btn-primary:hover{
  background:#D97706;
  color:#1C1A17;
  transform:translateY(-2px);
  box-shadow:0 6px 20px rgba(245,158,11,.4);
}
.btn-outline{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  background:rgba(255,255,255,.08);
  border:1.5px solid rgba(255,255,255,.7);
  color:#fff;
  font-weight:600;
  font-size:16px;
  padding:13px 30px;
  border-radius:999px;
  backdrop-filter:blur(4px);
  transition:all .3s;
  min-height:44px;
}
.btn-outline:hover{
  background:rgba(255,255,255,.18);
  color:#fff;
  transform:translateY(-2px);
}
.hero-trust{
  display:flex;
  gap:28px;
  margin-top:52px;
  flex-wrap:wrap;
}
.hero-trust span{
  display:flex;
  align-items:center;
  gap:8px;
  font-size:13px;
  color:rgba(255,255,255,.72);
}
.hero-trust svg{
  width:16px;
  height:16px;
  color:var(--secondary);
}
.hero-wave{
  position:absolute;
  bottom:-1px;
  left:0;
  right:0;
  z-index:3;
  line-height:0;
}
/* ===== Section ===== */
.section{
  padding:96px 0;
}
.section.bg-white{
  background:var(--card);
}
.section.bg-soft{
  background:var(--bg-light);
}
.section-head{
  text-align:center;
  max-width:720px;
  margin:0 auto 56px;
}
.section-head .sub{
  display:inline-block;
  font-size:13px;
  font-weight:600;
  color:var(--primary);
  background:rgba(14,94,79,.08);
  padding:5px 16px;
  border-radius:999px;
  margin-bottom:16px;
  letter-spacing:1px;
}
.section-head h2{
  font-size:clamp(26px,3vw,36px);
  font-weight:800;
  color:var(--text);
  line-height:1.25;
  margin-bottom:14px;
}
.section-head p{
  font-size:16px;
  color:var(--text-2);
  line-height:1.7;
}
/* ===== Timeline ===== */
.timeline{
  position:relative;
  max-width:980px;
  margin:0 auto;
  padding:20px 0;
}
.timeline::before{
  content:'';
  position:absolute;
  left:50%;
  top:0;
  bottom:0;
  width:2px;
  background:rgba(14,94,79,.15);
  transform:translateX(-50%);
}
.timeline-item{
  position:relative;
  width:50%;
  padding:0 48px 40px;
}
.timeline-item:nth-child(odd){
  left:0;
  text-align:right;
}
.timeline-item:nth-child(even){
  left:50%;
  text-align:left;
}
.timeline-dot{
  position:absolute;
  top:8px;
  width:16px;
  height:16px;
  border-radius:50%;
  background:var(--primary);
  border:4px solid rgba(14,94,79,.2);
  z-index:2;
}
.timeline-item:nth-child(odd) .timeline-dot{
  right:-8px;
}
.timeline-item:nth-child(even) .timeline-dot{
  left:-8px;
}
.timeline-card{
  background:var(--card);
  border-radius:var(--radius-card);
  padding:24px 28px;
  box-shadow:var(--shadow);
  border:1px solid var(--border);
  transition:box-shadow .3s,transform .3s;
  display:inline-block;
  width:100%;
  text-align:left;
}
.timeline-card:hover{
  box-shadow:var(--shadow-hover);
  transform:translateY(-4px);
}
.timeline-date{
  display:flex;
  align-items:center;
  gap:10px;
  margin-bottom:10px;
}
.timeline-date .day{
  font-size:32px;
  font-weight:800;
  color:var(--secondary);
  line-height:1;
  font-family:"Inter","DIN Alternate",system-ui;
}
.timeline-date .month{
  font-size:14px;
  color:var(--text-3);
  font-weight:600;
}
.timeline-card h3{
  font-size:18px;
  font-weight:700;
  color:var(--text);
  margin-bottom:10px;
}
.timeline-meta{
  display:flex;
  align-items:center;
  gap:16px;
  flex-wrap:wrap;
  font-size:13.5px;
  color:var(--text-2);
  margin-bottom:12px;
}
.timeline-meta span{
  display:flex;
  align-items:center;
  gap:5px;
}
.timeline-meta svg{
  width:15px;
  height:15px;
  color:var(--primary);
}
.status-tag{
  display:inline-block;
  font-size:12px;
  font-weight:600;
  padding:4px 14px;
  border-radius:999px;
}
.status-1{
  background:rgba(245,158,11,.12);
  color:#B45309;
}
.status-2{
  background:rgba(14,94,79,.1);
  color:var(--primary);
}
.status-3{
  background:rgba(139,133,122,.15);
  color:var(--text-3);
}
/* ===== News List ===== */
.news-grid{
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:24px;
}
.news-card{
  display:flex;
  background:var(--card);
  border-radius:var(--radius-card);
  overflow:hidden;
  border:1px solid var(--border);
  box-shadow:var(--shadow);
  transition:box-shadow .3s,transform .3s;
  text-decoration:none;
  color:inherit;
}
.news-card:hover{
  box-shadow:var(--shadow-hover);
  transform:translateY(-4px);
  color:inherit;
}
.news-thumb{
  width:160px;
  min-height:140px;
  flex-shrink:0;
  overflow:hidden;
}
.news-thumb img{
  width:100%;
  height:100%;
  object-fit:cover;
  transition:transform .4s ease;
}
.news-card:hover .news-thumb img{
  transform:scale(1.05);
}
.news-body{
  padding:22px 22px 18px;
  display:flex;
  flex-direction:column;
  flex:1;
}
.news-body .badge{
  align-self:flex-start;
  background:rgba(14,94,79,.09);
  color:var(--primary);
  font-size:12px;
  font-weight:600;
  padding:3px 12px;
  border-radius:999px;
  margin-bottom:10px;
}
.news-body h3{
  font-size:17px;
  font-weight:700;
  line-height:1.5;
  margin-bottom:8px;
  color:var(--text);
  display:-webkit-box;
  -webkit-line-clamp:2;
  -webkit-box-orient:vertical;
  overflow:hidden;
}
.news-body p{
  font-size:14px;
  color:var(--text-2);
  line-height:1.6;
  display:-webkit-box;
  -webkit-line-clamp:2;
  -webkit-box-orient:vertical;
  overflow:hidden;
  flex:1;
}
.news-meta{
  display:flex;
  align-items:center;
  gap:14px;
  margin-top:14px;
  font-size:13px;
  color:var(--text-3);
}
.news-meta .read-more{
  margin-left:auto;
  color:var(--primary);
  font-weight:600;
  font-size:13px;
  display:flex;
  align-items:center;
  gap:4px;
}
.empty-state{
  grid-column:1/-1;
  text-align:center;
  padding:60px 20px;
  background:var(--card);
  border-radius:var(--radius-card);
  border:1px dashed var(--border);
  color:var(--text-3);
  font-size:15px;
}
.empty-state svg{
  width:40px;
  height:40px;
  margin:0 auto 16px;
  display:block;
  color:var(--text-3);
  opacity:.4;
}
/* ===== Features ===== */
.features-grid{
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:28px;
  max-width:960px;
  margin:0 auto;
}
.feature-item{
  display:flex;
  gap:20px;
  background:var(--card);
  border-radius:var(--radius-card);
  padding:26px;
  border:1px solid var(--border);
  box-shadow:var(--shadow);
  transition:box-shadow .3s,transform .3s;
}
.feature-item:hover{
  box-shadow:var(--shadow-hover);
  transform:translateY(-3px);
}
.feature-item:nth-child(even){
  transform:translateX(24px);
}
.feature-item:nth-child(even):hover{
  transform:translateX(24px) translateY(-3px);
}
.feature-icon{
  width:52px;
  height:52px;
  border-radius:14px;
  background:rgba(14,94,79,.08);
  display:flex;
  align-items:center;
  justify-content:center;
  flex-shrink:0;
}
.feature-icon svg{
  width:24px;
  height:24px;
  color:var(--primary);
  stroke-width:1.8;
}
.feature-item h3{
  font-size:18px;
  font-weight:700;
  color:var(--text);
  margin-bottom:6px;
}
.feature-item p{
  font-size:14.5px;
  color:var(--text-2);
  line-height:1.7;
}
/* ===== Pricing ===== */
.pricing-grid{
  display:flex;
  align-items:stretch;
  gap:24px;
  justify-content:center;
  max-width:1100px;
  margin:0 auto;
}
.pricing-card{
  flex:1;
  max-width:340px;
  background:var(--card);
  border-radius:var(--radius-card);
  padding:36px 30px;
  border:1px solid var(--border);
  box-shadow:var(--shadow);
  display:flex;
  flex-direction:column;
  position:relative;
  transition:box-shadow .3s,transform .3s;
}
.pricing-card:hover{
  box-shadow:var(--shadow-hover);
  transform:translateY(-4px);
}
.pricing-card.featured{
  border:1.5px solid var(--primary);
  box-shadow:0 8px 24px rgba(14,94,79,.08);
  transform:scale(1.04);
  z-index:2;
}
.pricing-card.featured:hover{
  transform:scale(1.04) translateY(-4px);
}
.pricing-card.featured::before{
  content:'推荐';
  position:absolute;
  top:0;
  left:24px;
  background:var(--secondary);
  color:#1C1A17;
  font-size:12px;
  font-weight:700;
  padding:4px 16px;
  border-radius:0 0 999px 999px;
  letter-spacing:1px;
}
.pricing-card.featured .top-bar{
  position:absolute;
  top:-1px;
  left:24px;
  right:24px;
  height:4px;
  background:var(--secondary);
  border-radius:0 0 4px 4px;
}
.pricing-name{
  font-size:18px;
  font-weight:700;
  color:var(--text);
  margin-bottom:12px;
}
.pricing-price{
  font-size:32px;
  font-weight:800;
  color:var(--text);
  font-family:"Inter","DIN Alternate",system-ui;
  margin-bottom:6px;
}
.pricing-price .unit{
  font-size:16px;
  font-weight:500;
  color:var(--text-3);
}
.pricing-desc{
  font-size:14px;
  color:var(--text-3);
  margin-bottom:24px;
}
.pricing-list{
  list-style:none;
  margin-bottom:28px;
  flex:1;
}
.pricing-list li{
  display:flex;
  align-items:flex-start;
  gap:10px;
  font-size:14.5px;
  color:var(--text-2);
  line-height:1.7;
  padding:6px 0;
}
.pricing-list svg{
  width:18px;
  height:18px;
  color:var(--primary);
  flex-shrink:0;
  margin-top:4px;
}
.btn-pricing{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  padding:12px 24px;
  border-radius:999px;
  font-size:15px;
  font-weight:600;
  transition:all .3s;
  min-height:44px;
}
.btn-pricing.btn-ghost{
  border:1.5px solid var(--primary);
  color:var(--primary);
  background:transparent;
}
.btn-pricing.btn-ghost:hover{
  background:rgba(14,94,79,.08);
  transform:translateY(-2px);
}
.btn-pricing.btn-solid{
  background:var(--secondary);
  color:#1C1A17;
  font-weight:700;
}
.btn-pricing.btn-solid:hover{
  background:#D97706;
  transform:translateY(-2px);
  box-shadow:0 4px 14px rgba(245,158,11,.3);
}
/* ===== CTA ===== */
.cta-section{
  position:relative;
  background:var(--primary-dark);
  padding:80px 0;
  overflow:hidden;
}
.cta-section::before{
  content:'';
  position:absolute;
  top:-80px;
  right:-80px;
  width:240px;
  height:240px;
  border-radius:50%;
  border:2px solid rgba(245,158,11,.15);
}
.cta-section::after{
  content:'';
  position:absolute;
  bottom:-60px;
  left:-60px;
  width:180px;
  height:180px;
  border-radius:50%;
  background:rgba(245,158,11,.05);
}
.cta-inner{
  position:relative;
  z-index:2;
  max-width:960px;
  margin:0 auto;
  text-align:center;
}
.cta-inner h2{
  font-size:clamp(26px,3vw,36px);
  color:#fff;
  font-weight:800;
  margin-bottom:14px;
}
.cta-inner p{
  font-size:16px;
  color:rgba(255,255,255,.72);
  margin-bottom:40px;
}
.cta-form{
  display:flex;
  gap:14px;
  flex-wrap:wrap;
  justify-content:center;
  background:rgba(255,255,255,.08);
  border:1px solid rgba(255,255,255,.12);
  backdrop-filter:blur(8px);
  border-radius:20px;
  padding:28px;
}
.cta-form input,.cta-form select{
  background:#fff;
  border-radius:var(--radius-input);
  height:48px;
  padding:0 18px;
  font-size:15px;
  color:var(--text);
  border:1px solid transparent;
  flex:1;
  min-width:160px;
  transition:border-color .2s,box-shadow .2s;
}
.cta-form input::placeholder{
  color:var(--text-3);
}
.cta-form input:focus,.cta-form select:focus{
  border-color:var(--secondary);
  box-shadow:0 0 0 3px rgba(245,158,11,.25);
}
.cta-form select{
  appearance:none;
  cursor:pointer;
  background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8' fill='none'%3E%3Cpath d='M1 1l5 5 5-5' stroke='%2357534E' stroke-width='2' stroke-linecap='round'/%3E%3C/svg%3E");
  background-repeat:no-repeat;
  background-position:right 16px center;
}
.btn-submit{
  background:var(--secondary);
  color:#1C1A17;
  font-weight:700;
  font-size:15px;
  padding:0 32px;
  border-radius:999px;
  height:48px;
  min-width:120px;
  transition:background .2s,transform .2s,box-shadow .2s;
}
.btn-submit:hover{
  background:#D97706;
  transform:translateY(-2px);
  box-shadow:0 4px 14px rgba(245,158,11,.35);
}
.form-message{
  margin-top:18px;
  display:inline-flex;
  align-items:center;
  gap:8px;
  background:rgba(255,255,255,.15);
  color:#fff;
  font-size:14px;
  padding:10px 22px;
  border-radius:999px;
  opacity:0;
  transition:opacity .3s;
}
.form-message.visible{
  opacity:1;
}
/* ===== FAQ ===== */
.faq-wrap{
  max-width:820px;
  margin:0 auto;
}
.faq-item{
  background:var(--card);
  border-radius:var(--radius-card);
  border:1px solid var(--border);
  margin-bottom:14px;
  overflow:hidden;
  transition:box-shadow .3s;
}
.faq-item.open{
  box-shadow:var(--shadow);
}
.faq-question{
  display:flex;
  align-items:center;
  justify-content:space-between;
  padding:22px 28px;
  font-size:16px;
  font-weight:600;
  color:var(--text);
  cursor:pointer;
  background:transparent;
  text-align:left;
  width:100%;
  transition:background .3s;
}
.faq-question:hover{
  background:rgba(14,94,79,.03);
}
.faq-question .icon{
  width:28px;
  height:28px;
  border-radius:50%;
  background:rgba(14,94,79,.08);
  display:flex;
  align-items:center;
  justify-content:center;
  flex-shrink:0;
  transition:transform .3s,background .3s;
}
.faq-item.open .faq-question .icon{
  transform:rotate(45deg);
  background:var(--primary);
}
.faq-item.open .faq-question .icon svg{
  color:#fff;
}
.faq-question .icon svg{
  width:14px;
  height:14px;
  color:var(--primary);
  transition:color .3s;
}
.faq-answer{
  max-height:0;
  overflow:hidden;
  transition:max-height .4s ease;
}
.faq-item.open .faq-answer{
  max-height:300px;
}
.faq-answer p{
  padding:4px 28px 22px;
  font-size:14.5px;
  color:var(--text-2);
  line-height:1.8;
  background:rgba(14,94,79,.04);
}
/* ===== Footer ===== */
.site-footer{
  background:var(--primary-dark);
  color:rgba(255,255,255,.85);
  padding:64px 0 0;
}
.footer-grid{
  display:grid;
  grid-template-columns:1.4fr 1fr 1fr 1.2fr;
  gap:40px;
  padding-bottom:48px;
}
.footer-brand .logo{
  color:#fff;
  font-size:20px;
  margin-bottom:14px;
  display:inline-block;
}
.footer-brand p{
  font-size:14px;
  color:rgba(255,255,255,.6);
  line-height:1.7;
  margin-bottom:20px;
}
.footer-col h4{
  font-size:15px;
  font-weight:600;
  color:rgba(255,255,255,.9);
  margin-bottom:20px;
}
.footer-col ul li{
  margin-bottom:10px;
}
.footer-col ul a{
  color:rgba(255,255,255,.6);
  font-size:14px;
  transition:color .2s;
}
.footer-col ul a:hover{
  color:#fff;
}
.footer-contact li{
  display:flex;
  align-items:flex-start;
  gap:8px;
  font-size:14px;
  color:rgba(255,255,255,.6);
  margin-bottom:12px;
}
.footer-contact svg{
  width:16px;
  height:16px;
  color:var(--secondary);
  flex-shrink:0;
  margin-top:4px;
}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.1);
  padding:20px 0;
  text-align:center;
  font-size:13px;
  color:rgba(255,255,255,.45);
}
.footer-bottom a{
  color:rgba(255,255,255,.6);
}
.footer-bottom a:hover{
  color:#fff;
}
/* ===== Responsive ===== */
@media (max-width:1024px){
  .site-header{
    padding:0 20px;
  }
  .nav-links{
    gap:4px;
  }
  .nav-links a{
    padding:8px 12px;
    font-size:14px;
  }
  .features-grid{
    gap:20px;
  }
  .feature-item:nth-child(even){
    transform:none;
  }
  .feature-item:nth-child(even):hover{
    transform:translateY(-3px);
  }
  .pricing-grid{
    gap:16px;
  }
  .pricing-card{
    padding:28px 20px;
  }
  .cta-form{
    flex-direction:column;
  }
  .cta-form input,.cta-form select,.btn-submit{
    width:100%;
    min-width:0;
  }
  .footer-grid{
    grid-template-columns:1fr 1fr;
    gap:32px;
  }
}
@media (max-width:768px){
  .section{
    padding:56px 0;
  }
  .site-header{
    padding:0 16px;
    top:10px;
  }
  .nav-wrap{
    padding:8px 16px;
    border-radius:20px;
  }
  .nav-links{
    display:none;
    position:absolute;
    top:64px;
    left:16px;
    right:16px;
    background:rgba(255,255,255,.96);
    backdrop-filter:blur(12px);
    border-radius:16px;
    box-shadow:var(--shadow-hover);
    flex-direction:column;
    gap:4px;
    padding:16px;
  }
  .nav-links.active{
    display:flex;
  }
  .nav-links a{
    padding:12px 20px;
    font-size:16px;
    width:100%;
    text-align:center;
    border-radius:12px;
  }
  .nav-cta .btn-login{
    display:flex;
  }
  .btn-nav{
    display:none;
  }
  .hamburger{
    display:flex;
  }
  .hero{
    min-height:auto;
    padding:120px 0 80px;
  }
  .hero-content{
    padding:60px 0 60px;
  }
  .hero h1{
    font-size:30px;
  }
  .hero p{
    font-size:15px;
  }
  .hero-trust{
    gap:16px;
    flex-direction:column;
  }
  .timeline::before{
    left:8px;
  }
  .timeline-item{
    width:100%;
    padding:0 0 28px 36px;
    left:0 !important;
    text-align:left !important;
  }
  .timeline-item:nth-child(odd) .timeline-dot,
  .timeline-item:nth-child(even) .timeline-dot{
    left:0;
    right:auto;
  }
  .timeline-card{
    text-align:left;
  }
  .news-grid{
    grid-template-columns:1fr;
    gap:16px;
  }
  .news-card{
    flex-direction:column;
  }
  .news-thumb{
    width:100%;
    height:160px;
    min-height:0;
  }
  .pricing-grid{
    flex-direction:column;
    align-items:stretch;
  }
  .pricing-card{
    max-width:none;
  }
  .pricing-card.featured{
    transform:none;
  }
  .pricing-card.featured:hover{
    transform:translateY(-4px);
  }
  .features-grid{
    grid-template-columns:1fr;
  }
  .feature-item:nth-child(even){
    transform:none;
  }
  .footer-grid{
    grid-template-columns:1fr;
    gap:28px;
  }
  .container{
    padding:0 16px;
  }
  .cta-form{
    padding:20px;
  }
  .faq-question{
    padding:18px 20px;
    font-size:15px;
  }
  .faq-answer p{
    padding:2px 20px 18px;
  }
}
@media (max-width:520px){
  .hero-btns{
    flex-direction:column;
  }
  .hero-btns .btn-primary,.hero-btns .btn-outline{
    width:100%;
  }
  .hero-trust span{
    font-size:12.5px;
  }
  .section-head h2{
    font-size:24px;
  }
  .timeline-date .day{
    font-size:28px;
  }
  .timeline-card{
    padding:20px;
  }
  .news-body{
    padding:18px;
  }
  .news-body h3{
    font-size:16px;
  }
  .pricing-card{
    padding:26px 20px;
  }
  .footer-grid{
    grid-template-columns:1fr;
  }
}

/* roulang page: article */
:root{
  --primary:#0E5E4F;
  --primary-dark:#0A4A3E;
  --primary-light:#E9EFEB;
  --accent:#F59E0B;
  --accent-light:#FCD34D;
  --bg:#F6F5F1;
  --card:#FFFFFF;
  --text:#1C1A17;
  --text-secondary:#57534E;
  --text-muted:#8A857A;
  --border:#E2DED3;
  --radius-card:16px;
  --radius-btn:999px;
  --radius-input:12px;
  --radius-tag:99px;
  --shadow-sm:0 1px 3px rgba(28,26,23,.06),0 4px 12px rgba(28,26,23,.05);
  --shadow-hover:0 8px 30px rgba(28,26,23,.12);
  --font-sans:"PingFang SC","Microsoft YaHei","Noto Sans SC","Source Han Sans SC",system-ui,sans-serif;
  --font-num:"Inter","DIN Alternate",system-ui;
}

*,*::before,*::after{
  box-sizing:border-box;
  margin:0;
  padding:0;
}

html{
  scroll-behavior:smooth;
}

body{
  font-family:var(--font-sans);
  font-size:16px;
  line-height:1.8;
  color:var(--text);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}

img{
  max-width:100%;
  display:block;
}

a{
  color:var(--primary);
  text-decoration:none;
  transition:color .3s ease,background .3s ease,box-shadow .3s ease,transform .3s ease;
}

a:hover{
  color:var(--primary-dark);
}

ul,ol{
  list-style:none;
}

button{
  font-family:inherit;
  border:none;
  cursor:pointer;
  background:none;
}

input,select,textarea{
  font-family:inherit;
  font-size:16px;
}

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

/* ===== Buttons ===== */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  padding:14px 28px;
  border-radius:var(--radius-btn);
  font-size:15px;
  font-weight:600;
  line-height:1.2;
  min-height:48px;
  transition:all .3s ease;
  border:1.5px solid transparent;
}

.btn:focus-visible{
  outline:2px solid var(--primary);
  outline-offset:3px;
}

.btn-primary{
  background:var(--primary);
  color:#fff;
}

.btn-primary:hover{
  background:var(--primary-dark);
  color:#fff;
  box-shadow:var(--shadow-hover);
  transform:translateY(-2px);
}

.btn-primary:active{
  transform:translateY(0);
}

.btn-outline{
  border-color:var(--primary);
  color:var(--primary);
  background:transparent;
}

.btn-outline:hover{
  background:rgba(14,94,79,.08);
  color:var(--primary-dark);
}

.btn-outline:active{
  background:transparent;
}

.btn-accent{
  background:var(--accent);
  color:var(--text);
}

.btn-accent:hover{
  background:#D97706;
  color:var(--text);
  box-shadow:var(--shadow-hover);
  transform:translateY(-2px);
}

.btn-accent:active{
  transform:translateY(0);
}

/* ===== Header / Nav ===== */
.site-header{
  position:fixed;
  top:16px;
  left:0;
  right:0;
  z-index:100;
  padding:0 48px;
  pointer-events:none;
}

.nav-capsule{
  max-width:1200px;
  margin:0 auto;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  height:58px;
  padding:8px 16px;
  background:rgba(255,255,255,.86);
  -webkit-backdrop-filter:blur(12px);
  backdrop-filter:blur(12px);
  border-radius:var(--radius-btn);
  box-shadow:var(--shadow-sm);
  pointer-events:auto;
  transition:box-shadow .3s ease,background .3s ease;
}

.site-header.scrolled .nav-capsule{
  background:rgba(255,255,255,.92);
  box-shadow:0 8px 24px rgba(28,26,23,.10);
}

.logo{
  display:flex;
  align-items:baseline;
  gap:2px;
  font-size:20px;
  font-weight:800;
  color:var(--text);
  white-space:nowrap;
}

.logo span{
  font-size:14px;
  font-weight:700;
  color:var(--accent);
  background:rgba(245,158,11,.15);
  border-radius:99px;
  padding:2px 10px;
  margin-left:6px;
}

.nav-links{
  display:flex;
  align-items:center;
  gap:6px;
}

.nav-links a{
  display:inline-flex;
  align-items:center;
  min-height:40px;
  padding:0 16px;
  border-radius:99px;
  font-size:15px;
  font-weight:500;
  color:var(--text-secondary);
  transition:background .3s ease,color .3s ease;
}

.nav-links a:hover{
  background:rgba(14,94,79,.08);
  color:var(--primary-dark);
}

.nav-links a.active{
  background:var(--primary);
  color:#fff;
}

.nav-cta{
  margin-left:4px;
}

.nav-toggle{
  display:none;
  width:44px;
  height:44px;
  align-items:center;
  justify-content:center;
  border-radius:12px;
  color:var(--text);
  transition:background .3s ease;
}

.nav-toggle:hover{
  background:rgba(14,94,79,.08);
}

.nav-toggle svg{
  width:24px;
  height:24px;
  stroke:currentColor;
  stroke-width:1.8;
  fill:none;
  stroke-linecap:round;
  stroke-linejoin:round;
}

/* ===== Post Hero ===== */
.post-hero{
  background:var(--primary-light);
  padding:140px 0 96px;
  position:relative;
  overflow:hidden;
}

.post-hero::after{
  content:"";
  position:absolute;
  right:-80px;
  bottom:-80px;
  width:280px;
  height:280px;
  border-radius:50%;
  border:3px solid rgba(14,94,79,.08);
  pointer-events:none;
}

.breadcrumb{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:8px;
  font-size:13px;
  color:var(--text-muted);
  margin-bottom:24px;
  position:relative;
  z-index:1;
}

.breadcrumb a{
  color:var(--text-muted);
}

.breadcrumb a:hover{
  color:var(--primary);
}

.breadcrumb .sep{
  color:var(--border);
}

.post-hero .post-header{
  position:relative;
  z-index:1;
  max-width:860px;
}

.post-hero h1{
  font-size:clamp(30px,4vw,44px);
  font-weight:800;
  line-height:1.25;
  color:var(--text);
  letter-spacing:-.5px;
}

.post-meta{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:16px;
  margin-top:20px;
  font-size:14px;
  color:var(--text-secondary);
}

.post-meta .meta-item{
  display:inline-flex;
  align-items:center;
  gap:6px;
}

.post-meta .meta-item svg{
  width:16px;
  height:16px;
  flex-shrink:0;
}

.post-meta .category-link{
  display:inline-flex;
  align-items:center;
  background:rgba(14,94,79,.1);
  color:var(--primary);
  padding:4px 14px;
  border-radius:99px;
  font-size:13px;
  font-weight:600;
}

/* ===== Post Main ===== */
.post-main{
  padding:0 0 72px;
}

.post-wrap{
  max-width:920px;
}

.post-card{
  background:var(--card);
  border-radius:var(--radius-card);
  box-shadow:var(--shadow-sm);
  border:1px solid var(--border);
  padding:48px 56px;
  margin-top:-48px;
  position:relative;
  z-index:2;
}

.post-body{
  font-size:16px;
  line-height:1.8;
  color:var(--text);
}

.post-body > * + *{
  margin-top:1.2em;
}

.post-body h2{
  font-size:24px;
  font-weight:700;
  line-height:1.4;
  color:var(--text);
  margin-top:2em;
  padding-bottom:.4em;
  border-bottom:1px solid var(--border);
}

.post-body h3{
  font-size:20px;
  font-weight:700;
  line-height:1.4;
  color:var(--text);
  margin-top:1.6em;
}

.post-body h4{
  font-size:17px;
  font-weight:600;
  color:var(--text);
  margin-top:1.2em;
}

.post-body p{
  margin-top:1em;
}

.post-body a{
  text-decoration:underline;
  text-underline-offset:4px;
}

.post-body ul,
.post-body ol{
  margin:1em 0;
  padding-left:1.4em;
}

.post-body ul{
  list-style:disc;
}

.post-body ol{
  list-style:decimal;
}

.post-body li{
  margin:.4em 0;
}

.post-body blockquote{
  border-left:4px solid var(--primary);
  background:var(--primary-light);
  padding:18px 24px;
  border-radius:0 12px 12px 0;
  color:var(--text-secondary);
  font-style:normal;
}

.post-body img{
  border-radius:12px;
  border:1px solid var(--border);
  box-shadow:var(--shadow-sm);
  margin:1.5em 0;
}

.post-body table{
  width:100%;
  border-collapse:collapse;
  margin:1.5em 0;
  font-size:15px;
}

.post-body th,
.post-body td{
  border:1px solid var(--border);
  padding:12px 16px;
  text-align:left;
}

.post-body th{
  background:var(--primary-light);
  font-weight:600;
}

.post-body code{
  background:#F1EFE9;
  border:1px solid var(--border);
  border-radius:6px;
  padding:2px 8px;
  font-family:"SFMono-Regular",Consolas,"Liberation Mono",monospace;
  font-size:14px;
}

.post-body pre{
  background:#1C1A17;
  color:#F6F5F1;
  padding:20px 24px;
  border-radius:12px;
  overflow-x:auto;
  margin:1.5em 0;
}

.post-body pre code{
  background:transparent;
  border:none;
  color:inherit;
  padding:0;
}

.post-empty{
  text-align:center;
  padding:64px 24px;
}

.post-empty p{
  font-size:20px;
  font-weight:600;
  color:var(--text-secondary);
  margin-bottom:20px;
}

.post-tags{
  display:flex;
  flex-wrap:wrap;
  gap:8px;
  padding-top:24px;
  margin-top:32px;
  border-top:1px solid var(--border);
}

.post-tags .tag{
  display:inline-flex;
  align-items:center;
  padding:4px 14px;
  border-radius:var(--radius-tag);
  background:var(--primary-light);
  color:var(--primary);
  font-size:13px;
  font-weight:600;
}

.post-tags .tag-title{
  color:var(--text-muted);
  font-weight:400;
  font-size:13px;
}

.post-back{
  display:inline-flex;
  align-items:center;
  gap:8px;
  margin-top:32px;
  font-size:14px;
  font-weight:600;
  color:var(--primary);
}

.post-back:hover{
  color:var(--primary-dark);
}

.post-back svg{
  width:16px;
  height:16px;
}

/* ===== Related Section ===== */
.related-section{
  background:var(--bg);
  padding:72px 0;
}

.section-head{
  margin-bottom:36px;
}

.section-head h2{
  font-size:clamp(26px,3vw,36px);
  font-weight:800;
  line-height:1.25;
  color:var(--text);
  letter-spacing:-.5px;
}

.section-head p{
  font-size:15px;
  color:var(--text-secondary);
  margin-top:8px;
}

.related-grid{
  display:grid;
  grid-template-columns:repeat(3,1fr);
  gap:24px;
}

.related-card{
  display:flex;
  flex-direction:column;
  background:var(--card);
  border:1px solid var(--border);
  border-radius:var(--radius-card);
  overflow:hidden;
  box-shadow:var(--shadow-sm);
  transition:transform .3s ease,box-shadow .3s ease;
}

.related-card:hover{
  transform:translateY(-4px);
  box-shadow:var(--shadow-hover);
}

.related-card .card-img{
  width:100%;
  height:160px;
  object-fit:cover;
  transition:transform .3s ease;
}

.related-card:hover .card-img{
  transform:scale(1.03);
}

.related-card .card-body{
  padding:20px 24px 24px;
  flex:1;
  display:flex;
  flex-direction:column;
  gap:10px;
}

.related-card .card-cat{
  font-size:13px;
  font-weight:600;
  color:var(--accent);
}

.related-card h3{
  font-size:17px;
  font-weight:700;
  line-height:1.5;
  color:var(--text);
  transition:color .3s ease;
}

.related-card:hover h3{
  color:var(--primary);
}

.related-card .card-time{
  font-size:13px;
  color:var(--text-muted);
  display:inline-flex;
  align-items:center;
  gap:6px;
  margin-top:auto;
}

/* ===== CTA Section ===== */
.cta-section{
  padding:64px 0 96px;
  background:var(--bg);
}

.cta-inner{
  background:var(--primary-dark);
  border-radius:24px;
  padding:56px 64px;
  position:relative;
  overflow:hidden;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:32px;
}

.cta-inner::before,
.cta-inner::after{
  content:"";
  position:absolute;
  border-radius:50%;
  background:var(--accent);
  opacity:.08;
  pointer-events:none;
}

.cta-inner::before{
  width:220px;
  height:220px;
  top:-80px;
  left:-80px;
}

.cta-inner::after{
  width:160px;
  height:160px;
  bottom:-60px;
  right:-40px;
}

.cta-copy{
  position:relative;
  z-index:1;
}

.cta-copy h2{
  font-size:28px;
  font-weight:800;
  color:#fff;
  line-height:1.3;
}

.cta-copy p{
  font-size:15px;
  color:rgba(255,255,255,.75);
  margin-top:8px;
}

.cta-buttons{
  position:relative;
  z-index:1;
  display:flex;
  flex-wrap:wrap;
  gap:12px;
}

/* ===== Footer ===== */
.site-footer{
  background:var(--primary-dark);
  color:rgba(255,255,255,.72);
}

.footer-grid{
  display:grid;
  grid-template-columns:1.4fr 1fr 1fr 1.2fr;
  gap:40px;
  padding:64px 0 40px;
}

.footer-brand .logo{
  color:#fff;
  font-size:20px;
  margin-bottom:16px;
}

.footer-brand .logo span{
  color:var(--accent-light);
  background:rgba(252,211,77,.12);
}

.footer-brand p{
  font-size:14px;
  line-height:1.8;
  color:rgba(255,255,255,.58);
  max-width:260px;
}

.footer-col h4{
  font-size:15px;
  font-weight:600;
  color:rgba(255,255,255,.9);
  margin-bottom:16px;
}

.footer-col ul li{
  margin-bottom:10px;
}

.footer-col ul a{
  font-size:14px;
  color:rgba(255,255,255,.6);
  transition:color .3s ease;
}

.footer-col ul a:hover{
  color:#fff;
}

.footer-contact li{
  display:flex;
  align-items:center;
  gap:10px;
  font-size:14px;
  color:rgba(255,255,255,.6);
}

.footer-contact svg{
  width:18px;
  height:18px;
  flex-shrink:0;
  color:var(--accent-light);
}

.footer-bottom{
  border-top:1px solid rgba(255,255,255,.1);
  padding:20px 0;
}

.footer-bottom p{
  font-size:13px;
  color:rgba(255,255,255,.5);
  text-align:center;
}

.footer-bottom a{
  color:rgba(255,255,255,.7);
}

.footer-bottom a:hover{
  color:#fff;
}

/* ===== Responsive ===== */
@media (max-width:1024px){
  .site-header{
    padding:0 24px;
  }

  .nav-links a{
    padding:0 12px;
    font-size:14px;
  }

  .footer-grid{
    grid-template-columns:1fr 1fr;
    gap:32px;
  }

  .related-grid{
    grid-template-columns:repeat(2,1fr);
  }

  .cta-inner{
    flex-direction:column;
    align-items:flex-start;
    padding:40px;
  }
}

@media (max-width:768px){
  .site-header{
    top:12px;
    padding:0 16px;
  }

  .nav-capsule{
    height:auto;
    min-height:58px;
    padding:8px 12px;
    border-radius:20px;
  }

  .nav-links{
    display:none;
    position:absolute;
    top:calc(100% + 8px);
    left:16px;
    right:16px;
    flex-direction:column;
    align-items:stretch;
    background:rgba(255,255,255,.97);
    backdrop-filter:blur(12px);
    border-radius:20px;
    box-shadow:var(--shadow-hover);
    padding:12px;
    border:1px solid var(--border);
  }

  .nav-links.open{
    display:flex;
  }

  .nav-links a{
    padding:14px 16px;
    font-size:16px;
    border-radius:12px;
  }

  .nav-links a.active{
    background:var(--primary);
    color:#fff;
  }

  .nav-cta{
    display:none;
  }

  .nav-toggle{
    display:flex;
  }

  .post-hero{
    padding:120px 0 80px;
  }

  .post-card{
    padding:32px 24px;
    margin-top:-40px;
  }

  .post-body{
    font-size:15px;
  }

  .related-grid{
    grid-template-columns:1fr;
  }

  .footer-grid{
    grid-template-columns:1fr;
    gap:32px;
    padding:48px 0 24px;
  }

  .cta-inner{
    padding:32px 24px;
  }

  .cta-copy h2{
    font-size:22px;
  }

  .cta-buttons .btn{
    width:100%;
  }
}

@media (max-width:520px){
  .container{
    padding:0 16px;
  }

  .post-hero h1{
    font-size:28px;
  }

  .post-meta{
    gap:10px;
  }

  .post-card{
    padding:24px 18px;
  }

  .post-body table{
    font-size:13px;
  }

  .post-body th,
  .post-body td{
    padding:8px 10px;
  }

  .related-card .card-img{
    height:140px;
  }
}

/* roulang page: category1 */
:root {
            --primary: #0E5E4F;
            --primary-dark: #0A4A3E;
            --primary-light: #E9EFEB;
            --accent: #F59E0B;
            --accent-light: #FCD34D;
            --bg: #F6F5F1;
            --card-bg: #FFFFFF;
            --text: #1C1A17;
            --text-secondary: #57534E;
            --text-muted: #8A857A;
            --border: #E2DED3;
            --radius-sm: 8px;
            --radius-md: 12px;
            --radius-lg: 16px;
            --radius-full: 999px;
            --shadow-sm: 0 1px 3px rgba(28, 26, 23, .06), 0 4px 12px rgba(28, 26, 23, .05);
            --shadow-hover: 0 8px 30px rgba(28, 26, 23, .12);
            --font-sans: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", "Source Han Sans SC", system-ui, sans-serif;
            --font-num: "Inter", "DIN Alternate", system-ui;
            --container: 1200px;
            --section-space: 96px;
        }

        *,
        *::before,
        *::after {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }

        html {
            scroll-behavior: smooth;
        }

        body {
            font-family: var(--font-sans);
            background: var(--bg);
            color: var(--text);
            line-height: 1.8;
            font-size: 16px;
            -webkit-font-smoothing: antialiased;
        }

        img {
            max-width: 100%;
            display: block;
        }

        a {
            text-decoration: none;
            color: inherit;
            transition: color .25s ease;
        }

        button {
            font-family: inherit;
            cursor: pointer;
            border: none;
            background: none;
        }

        ul,
        ol {
            list-style: none;
        }

        .container {
            max-width: var(--container);
            margin: 0 auto;
            padding: 0 24px;
        }

        .section {
            padding: var(--section-space) 0;
        }

        .section-alt {
            background: var(--card-bg);
        }

        .section-head {
            max-width: 640px;
            margin-bottom: 48px;
        }

        .section-head .section-tag {
            display: inline-block;
            padding: 4px 14px;
            background: rgba(14, 94, 79, .1);
            color: var(--primary);
            border-radius: var(--radius-full);
            font-size: 13px;
            font-weight: 600;
            margin-bottom: 14px;
        }

        .section-head h2 {
            font-size: clamp(26px, 3vw, 36px);
            line-height: 1.25;
            font-weight: 800;
            color: var(--text);
            margin-bottom: 12px;
        }

        .section-head p {
            font-size: 16px;
            color: var(--text-secondary);
        }

        /* ===== Header / Nav ===== */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1000;
            padding: 16px 48px 0;
            pointer-events: none;
        }

        .nav-shell {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 24px;
            max-width: var(--container);
            margin: 0 auto;
            background: rgba(255, 255, 255, .86);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border-radius: var(--radius-full);
            padding: 8px 20px;
            box-shadow: var(--shadow-sm);
            pointer-events: auto;
            transition: box-shadow .3s ease, background .3s ease;
            min-height: 58px;
        }

        .site-header.scrolled .nav-shell {
            box-shadow: var(--shadow-hover);
            background: rgba(255, 255, 255, .92);
        }

        .logo {
            font-size: 20px;
            font-weight: 800;
            color: var(--primary);
            letter-spacing: 0;
            white-space: nowrap;
            line-height: 1.2;
        }

        .logo span {
            color: var(--accent);
        }

        .nav-links {
            display: flex;
            align-items: center;
            gap: 4px;
        }

        .nav-links a {
            display: inline-block;
            padding: 10px 18px;
            border-radius: var(--radius-full);
            font-size: 15px;
            font-weight: 500;
            color: var(--text-secondary);
            transition: background .25s ease, color .25s ease;
        }

        .nav-links a:hover {
            background: rgba(14, 94, 79, .08);
            color: var(--primary-dark);
        }

        .nav-links a.active {
            background: var(--primary);
            color: #fff;
        }

        .nav-links a:focus-visible,
        .logo:focus-visible,
        .menu-toggle:focus-visible {
            outline: 2px solid var(--accent);
            outline-offset: 2px;
            border-radius: var(--radius-full);
        }

        .menu-toggle {
            display: none;
            width: 44px;
            height: 44px;
            border-radius: 12px;
            flex-direction: column;
            align-items: center;
            justify-content: center;
            gap: 5px;
            background: rgba(14, 94, 79, .06);
            transition: background .25s ease;
        }

        .menu-toggle span {
            width: 20px;
            height: 2px;
            background: var(--text);
            border-radius: 2px;
            transition: transform .3s ease, opacity .3s ease;
        }

        .menu-toggle.open span:nth-child(1) {
            transform: translateY(7px) rotate(45deg);
        }

        .menu-toggle.open span:nth-child(2) {
            opacity: 0;
        }

        .menu-toggle.open span:nth-child(3) {
            transform: translateY(-7px) rotate(-45deg);
        }

        /* ===== Page Hero ===== */
        .page-hero {
            position: relative;
            padding: 170px 0 80px;
            background: linear-gradient(135deg, var(--primary-light) 0%, #F6F5F1 55%, rgba(245, 158, 11, .06) 100%);
            overflow: hidden;
        }

        .page-hero .decor-circle {
            position: absolute;
            top: -80px;
            right: -60px;
            width: 260px;
            height: 260px;
            border-radius: 50%;
            border: 40px solid rgba(14, 94, 79, .06);
            pointer-events: none;
        }

        .page-hero .decor-ring {
            position: absolute;
            bottom: -90px;
            left: 30%;
            width: 200px;
            height: 200px;
            border-radius: 50%;
            border: 1px solid rgba(245, 158, 11, .18);
            pointer-events: none;
        }

        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: var(--accent);
            color: #1C1A17;
            font-size: 13px;
            font-weight: 700;
            padding: 6px 16px;
            border-radius: var(--radius-full);
            margin-bottom: 20px;
            box-shadow: 0 4px 14px rgba(245, 158, 11, .25);
        }

        .page-hero h1 {
            font-size: clamp(34px, 4.5vw, 50px);
            font-weight: 800;
            line-height: 1.2;
            color: var(--text);
            margin-bottom: 16px;
            max-width: 760px;
        }

        .page-hero p {
            font-size: 17px;
            line-height: 1.8;
            color: var(--text-secondary);
            max-width: 680px;
            margin-bottom: 30px;
        }

        .hero-actions {
            display: flex;
            flex-wrap: wrap;
            gap: 12px;
            margin-bottom: 36px;
        }

        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            padding: 14px 28px;
            border-radius: var(--radius-full);
            font-size: 15px;
            font-weight: 600;
            line-height: 1.4;
            transition: all .25s ease;
            border: 1.5px solid transparent;
            min-height: 44px;
        }

        .btn-primary {
            background: var(--primary);
            color: #fff;
        }

        .btn-primary:hover {
            background: var(--primary-dark);
            box-shadow: var(--shadow-hover);
            transform: translateY(-2px);
        }

        .btn-primary:active {
            transform: translateY(0);
        }

        .btn-outline {
            background: transparent;
            border-color: var(--primary);
            color: var(--primary);
        }

        .btn-outline:hover {
            background: rgba(14, 94, 79, .08);
            border-color: var(--primary-dark);
            color: var(--primary-dark);
        }

        .btn-outline:active {
            background: rgba(14, 94, 79, .14);
        }

        .btn-accent {
            background: var(--accent);
            color: #1C1A17;
        }

        .btn-accent:hover {
            background: #D97706;
            box-shadow: 0 8px 24px rgba(245, 158, 11, .3);
            transform: translateY(-2px);
        }

        .btn-accent:active {
            transform: translateY(0);
        }

        .hero-metrics {
            display: flex;
            flex-wrap: wrap;
            gap: 28px;
            padding-top: 24px;
            border-top: 1px solid rgba(14, 94, 79, .1);
            max-width: 680px;
        }

        .hero-metrics .metric {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 14px;
            color: var(--text-secondary);
        }

        .hero-metrics .metric .num {
            font-family: var(--font-num);
            font-weight: 700;
            font-size: 22px;
            color: var(--primary);
            line-height: 1;
        }

        /* ===== TOC Guide ===== */
        .toc-section {
            padding: 64px 0 8px;
        }

        .toc-card {
            background: var(--card-bg);
            border: 1px solid var(--border);
            border-radius: var(--radius-lg);
            padding: 28px 32px;
            max-width: 820px;
            box-shadow: var(--shadow-sm);
        }

        .toc-card h3 {
            font-size: 18px;
            font-weight: 700;
            color: var(--text);
            margin-bottom: 18px;
            display: flex;
            align-items: center;
            gap: 10px;
        }

        .toc-card h3::before {
            content: '';
            width: 4px;
            height: 18px;
            background: var(--accent);
            border-radius: 2px;
        }

        .toc-card ul li {
            border-bottom: 1px dashed var(--border);
        }

        .toc-card ul li:last-child {
            border-bottom: none;
        }

        .toc-card ul li a {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 13px 4px;
            font-size: 15px;
            color: var(--text-secondary);
            transition: color .25s ease, padding-left .25s ease;
        }

        .toc-card ul li a:hover {
            color: var(--primary);
            padding-left: 10px;
        }

        .toc-card ul li a::after {
            content: '→';
            font-size: 16px;
            color: var(--text-muted);
            transition: color .25s ease;
        }

        .toc-card ul li a:hover::after {
            color: var(--primary);
        }

        /* ===== Match Scope ===== */
        .scope-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
        }

        .scope-card {
            background: var(--card-bg);
            border: 1px solid var(--border);
            border-radius: var(--radius-lg);
            overflow: hidden;
            transition: transform .3s ease, box-shadow .3s ease;
        }

        .scope-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-hover);
        }

        .scope-card .img-wrap {
            height: 170px;
            overflow: hidden;
            position: relative;
        }

        .scope-card .img-wrap img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform .3s ease;
        }

        .scope-card:hover .img-wrap img {
            transform: scale(1.03);
        }

        .scope-card .img-wrap::after {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg, transparent 60%, rgba(10, 74, 62, .18));
        }

        .scope-card .card-body {
            padding: 20px 22px 22px;
        }

        .scope-card h3 {
            font-size: 19px;
            font-weight: 700;
            color: var(--text);
            margin-bottom: 6px;
        }

        .scope-card p {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.7;
            margin-bottom: 14px;
            min-height: 68px;
        }

        .scope-card .tag-row {
            display: flex;
            flex-wrap: wrap;
            gap: 8px;
        }

        .scope-card .tag {
            display: inline-block;
            padding: 3px 12px;
            background: rgba(14, 94, 79, .08);
            color: var(--primary);
            font-size: 12px;
            font-weight: 600;
            border-radius: var(--radius-full);
        }

        /* ===== Insights 2x2 ===== */
        .insight-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 24px;
        }

        .insight-grid .insight-card:nth-child(even) {
            transform: translateX(40px);
        }

        .insight-card {
            display: flex;
            align-items: flex-start;
            gap: 18px;
            background: var(--card-bg);
            border: 1px solid var(--border);
            border-radius: var(--radius-lg);
            padding: 24px;
            transition: transform .3s ease, box-shadow .3s ease;
        }

        .insight-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-hover);
        }

        .insight-card .icon-box {
            flex: 0 0 48px;
            width: 48px;
            height: 48px;
            border-radius: 14px;
            background: rgba(14, 94, 79, .1);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--primary);
        }

        .insight-card .icon-box svg {
            width: 24px;
            height: 24px;
            stroke-width: 1.8;
            fill: none;
            stroke: currentColor;
        }

        .insight-card h3 {
            font-size: 18px;
            font-weight: 700;
            color: var(--text);
            margin-bottom: 4px;
        }

        .insight-card p {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.7;
        }

        /* ===== Process ===== */
        .process-steps {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
            counter-reset: step;
        }

        .step-card {
            background: var(--card-bg);
            border: 1px solid var(--border);
            border-radius: var(--radius-lg);
            padding: 28px 24px;
            position: relative;
            transition: transform .3s ease, box-shadow .3s ease;
        }

        .step-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-hover);
        }

        .step-card .step-num {
            font-family: var(--font-num);
            font-size: 28px;
            font-weight: 800;
            color: var(--accent);
            display: block;
            margin-bottom: 12px;
        }

        .step-card h3 {
            font-size: 17px;
            font-weight: 700;
            color: var(--text);
            margin-bottom: 8px;
        }

        .step-card p {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.7;
        }

        .step-card::after {
            content: '';
            position: absolute;
            top: 32px;
            right: -14px;
            width: 28px;
            height: 2px;
            background: var(--border);
        }

        .step-card:last-child::after {
            display: none;
        }

        /* ===== FAQ ===== */
        .faq-wrap {
            max-width: 820px;
            margin: 0 auto;
            background: var(--card-bg);
            border: 1px solid var(--border);
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow-sm);
            overflow: hidden;
        }

        .faq-item {
            border-bottom: 1px solid var(--border);
        }

        .faq-item:last-child {
            border-bottom: none;
        }

        .faq-q {
            width: 100%;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            padding: 22px 28px;
            font-size: 16px;
            font-weight: 600;
            color: var(--text);
            text-align: left;
            transition: background .25s ease;
        }

        .faq-q:hover {
            background: rgba(14, 94, 79, .03);
        }

        .faq-q .icon-plus {
            flex: 0 0 24px;
            width: 24px;
            height: 24px;
            border-radius: 50%;
            background: rgba(14, 94, 79, .08);
            display: flex;
            align-items: center;
            justify-content: center;
            position: relative;
            transition: transform .3s ease, background .3s ease;
        }

        .faq-q .icon-plus::before,
        .faq-q .icon-plus::after {
            content: '';
            position: absolute;
            background: var(--primary);
            border-radius: 1px;
            transition: transform .3s ease;
        }

        .faq-q .icon-plus::before {
            width: 10px;
            height: 2px;
        }

        .faq-q .icon-plus::after {
            width: 2px;
            height: 10px;
        }

        .faq-item.active .faq-q {
            background: rgba(14, 94, 79, .04);
        }

        .faq-item.active .icon-plus {
            transform: rotate(45deg);
            background: var(--primary);
        }

        .faq-item.active .icon-plus::before,
        .faq-item.active .icon-plus::after {
            background: #fff;
        }

        .faq-a {
            max-height: 0;
            overflow: hidden;
            transition: max-height .35s ease, padding .35s ease;
            padding: 0 28px;
            background: rgba(14, 94, 79, .04);
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.8;
        }

        .faq-item.active .faq-a {
            max-height: 260px;
            padding: 4px 28px 20px;
        }

        /* ===== CTA Banner ===== */
        .cta-banner {
            position: relative;
            background: var(--primary-dark);
            padding: 72px 0;
            overflow: hidden;
        }

        .cta-banner .decor-1 {
            position: absolute;
            top: -60px;
            right: 10%;
            width: 180px;
            height: 180px;
            border-radius: 50%;
            border: 30px solid rgba(245, 158, 11, .08);
        }

        .cta-banner .decor-2 {
            position: absolute;
            bottom: -40px;
            left: 6%;
            width: 120px;
            height: 120px;
            border-radius: 50%;
            border: 2px solid rgba(245, 158, 11, .12);
        }

        .cta-banner .cta-inner {
            position: relative;
            z-index: 2;
        }

        .cta-banner h2 {
            font-size: clamp(26px, 3vw, 34px);
            font-weight: 800;
            color: #fff;
            margin-bottom: 12px;
        }

        .cta-banner .cta-desc {
            font-size: 16px;
            color: rgba(255, 255, 255, .7);
            max-width: 560px;
            margin-bottom: 32px;
        }

        .cta-form {
            display: flex;
            flex-wrap: wrap;
            gap: 14px;
            max-width: 780px;
        }

        .cta-form input,
        .cta-form select {
            flex: 1 1 160px;
            height: 48px;
            padding: 0 18px;
            border-radius: var(--radius-md);
            border: 1px solid transparent;
            background: #fff;
            font-size: 14px;
            font-family: var(--font-sans);
            color: var(--text);
            outline: none;
            transition: border-color .25s ease, box-shadow .25s ease;
        }

        .cta-form input::placeholder {
            color: var(--text-muted);
        }

        .cta-form input:focus,
        .cta-form select:focus {
            border-color: var(--accent);
            box-shadow: 0 0 0 3px rgba(245, 158, 11, .3);
        }

        .cta-form select {
            appearance: none;
            background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8' viewBox='0 0 12 8'%3E%3Cpath fill='%2357534E' d='M6 8L0 0h12z'/%3E%3C/svg%3E");
            background-repeat: no-repeat;
            background-position: right 16px center;
            padding-right: 38px;
            cursor: pointer;
        }

        .cta-form .btn {
            flex: 0 0 auto;
            height: 48px;
            padding: 0 30px;
        }

        .form-msg {
            margin-top: 16px;
            padding: 12px 18px;
            background: rgba(245, 158, 11, .15);
            border: 1px solid rgba(245, 158, 11, .4);
            color: var(--accent-light);
            border-radius: var(--radius-md);
            font-size: 14px;
            display: none;
            max-width: 780px;
        }

        /* ===== Footer ===== */
        .site-footer {
            background: #0A2E27;
            color: rgba(255, 255, 255, .7);
            font-size: 14px;
        }

        .site-footer .container {
            padding-top: 56px;
            padding-bottom: 56px;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 1.5fr 1fr 1fr 1.2fr;
            gap: 40px;
        }

        .footer-brand .logo {
            color: #fff;
            font-size: 22px;
            display: inline-block;
            margin-bottom: 16px;
        }

        .footer-brand p {
            font-size: 14px;
            line-height: 1.8;
            color: rgba(255, 255, 255, .6);
            max-width: 280px;
        }

        .footer-col h4 {
            font-size: 15px;
            font-weight: 600;
            color: rgba(255, 255, 255, .9);
            margin-bottom: 16px;
        }

        .footer-col ul li {
            margin-bottom: 10px;
        }

        .footer-col ul li a {
            font-size: 14px;
            color: rgba(255, 255, 255, .6);
            transition: color .25s ease;
        }

        .footer-col ul li a:hover {
            color: #fff;
        }

        .footer-contact li {
            display: flex;
            align-items: flex-start;
            gap: 10px;
            font-size: 14px;
            color: rgba(255, 255, 255, .6);
            line-height: 1.6;
        }

        .footer-contact svg {
            flex: 0 0 18px;
            width: 18px;
            height: 18px;
            margin-top: 3px;
        }

        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, .1);
        }

        .footer-bottom .container {
            padding-top: 20px;
            padding-bottom: 20px;
            display: flex;
            justify-content: center;
            align-items: center;
        }

        .footer-bottom p {
            font-size: 13px;
            color: rgba(255, 255, 255, .45);
        }

        .footer-bottom a {
            color: rgba(255, 255, 255, .6);
        }

        .footer-bottom a:hover {
            color: #fff;
        }

        /* ===== Responsive ===== */
        @media (max-width: 1024px) {
            .scope-grid {
                grid-template-columns: repeat(2, 1fr);
            }

            .process-steps {
                grid-template-columns: repeat(2, 1fr);
            }

            .step-card::after {
                display: none;
            }

            .insight-grid .insight-card:nth-child(even) {
                transform: none;
            }

            .footer-grid {
                grid-template-columns: 1fr 1fr;
            }
        }

        @media (max-width: 768px) {
            :root {
                --section-space: 56px;
            }

            .site-header {
                padding: 12px 16px 0;
            }

            .nav-shell {
                border-radius: 20px;
                padding: 6px 14px;
                min-height: 56px;
            }

            .logo {
                font-size: 18px;
            }

            .menu-toggle {
                display: flex;
            }

            .nav-links {
                position: fixed;
                top: 78px;
                left: 16px;
                right: 16px;
                background: rgba(255, 255, 255, .97);
                backdrop-filter: blur(12px);
                flex-direction: column;
                gap: 6px;
                padding: 16px;
                border-radius: 20px;
                box-shadow: var(--shadow-hover);
                transform: translateY(-14px);
                opacity: 0;
                pointer-events: none;
                transition: opacity .3s ease, transform .3s ease;
            }

            .nav-links.open {
                transform: translateY(0);
                opacity: 1;
                pointer-events: auto;
            }

            .nav-links a {
                width: 100%;
                text-align: center;
                padding: 13px 18px;
                font-size: 16px;
            }

            .page-hero {
                padding: 140px 0 60px;
            }

            .page-hero h1 {
                font-size: 30px;
            }

            .page-hero p {
                font-size: 15px;
            }

            .hero-actions .btn {
                flex: 1 1 100%;
            }

            .hero-metrics {
                gap: 16px;
                flex-direction: column;
                align-items: flex-start;
            }

            .scope-grid {
                grid-template-columns: 1fr;
            }

            .scope-card .img-wrap {
                height: 180px;
            }

            .scope-card p {
                min-height: 0;
            }

            .insight-grid {
                grid-template-columns: 1fr;
            }

            .process-steps {
                grid-template-columns: 1fr;
            }

            .cta-form input,
            .cta-form select,
            .cta-form .btn {
                flex: 1 1 100%;
                width: 100%;
            }

            .cta-form .btn {
                justify-content: center;
            }

            .footer-grid {
                grid-template-columns: 1fr;
                gap: 32px;
            }

            .footer-bottom .container {
                flex-direction: column;
                text-align: center;
            }
        }

        @media (max-width: 520px) {
            .container {
                padding: 0 16px;
            }

            .nav-shell {
                border-radius: 16px;
            }

            .scope-grid {
                grid-template-columns: 1fr;
            }

            .scope-card .img-wrap {
                height: 160px;
            }

            .toc-card {
                padding: 20px;
            }

            .insight-card {
                flex-direction: column;
                padding: 20px;
            }

            .insight-card .icon-box {
                flex: 0 0 44px;
                width: 44px;
                height: 44px;
            }

            .faq-q {
                padding: 18px 20px;
                font-size: 15px;
            }

            .faq-a {
                padding: 0 20px;
            }

            .faq-item.active .faq-a {
                padding: 4px 20px 18px;
            }
        }

/* roulang page: category2 */
/* ============ 设计变量 ============ */
:root {
  --primary: #0E5E4F;
  --primary-dark: #0A4A3E;
  --primary-light: rgba(14, 94, 79, .08);
  --accent: #F59E0B;
  --accent-dark: #D97706;
  --accent-light: #FCD34D;
  --bg: #F6F5F1;
  --bg-tint: #E9EFEB;
  --card: #FFFFFF;
  --text: #1C1A17;
  --text-secondary: #57534E;
  --text-muted: #8A857A;
  --border: #E2DED3;
  --radius: 16px;
  --radius-sm: 12px;
  --radius-pill: 999px;
  --shadow-sm: 0 1px 3px rgba(28, 26, 23, .06), 0 4px 12px rgba(28, 26, 23, .05);
  --shadow-md: 0 8px 30px rgba(28, 26, 23, .12);
  --shadow-nav: 0 8px 24px rgba(28, 26, 23, .10);
  --font-sans: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", "Source Han Sans SC", system-ui, sans-serif;
  --font-num: "Inter", "DIN Alternate", system-ui, sans-serif;
  --container: 1200px;
  --space: 96px;
  --space-mobile: 56px;
}

/* ============ Reset / Base ============ */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

body {
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.8;
  color: var(--text);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
}

img, svg, video {
  display: block;
  max-width: 100%;
}

a {
  color: var(--primary);
  text-decoration: none;
  transition: color .3s ease;
}

a:hover {
  color: var(--primary-dark);
}

ul, ol {
  list-style: none;
}

button, input, select, textarea {
  font-family: inherit;
  font-size: inherit;
  line-height: inherit;
  color: inherit;
  border: none;
  outline: none;
  background: none;
}

button {
  cursor: pointer;
}

:focus-visible {
  outline: 2px solid var(--primary);
  outline-offset: 2px;
  border-radius: 4px;
}

::selection {
  background: var(--accent-light);
  color: var(--text);
}

/* ============ 容器 / 板块 ============ */
.container {
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 24px;
}

.section {
  padding: var(--space) 0;
}

.section-head {
  max-width: 720px;
  margin-bottom: 48px;
}

.section-head.center {
  margin-left: auto;
  margin-right: auto;
  text-align: center;
}

.section-tag {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: var(--primary-light);
  color: var(--primary);
  font-size: 13px;
  font-weight: 600;
  padding: 6px 14px;
  border-radius: var(--radius-pill);
  margin-bottom: 14px;
}

.section-title {
  font-size: clamp(26px, 3vw, 36px);
  line-height: 1.25;
  font-weight: 800;
  color: var(--text);
  letter-spacing: -0.02em;
}

.section-desc {
  margin-top: 14px;
  font-size: 16px;
  line-height: 1.8;
  color: var(--text-secondary);
}

/* ============ 导航 ============ */
.site-header {
  position: fixed;
  top: 16px;
  left: 0;
  right: 0;
  z-index: 100;
  padding: 0 48px;
}

.navbar {
  max-width: var(--container);
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  background: rgba(255, 255, 255, .86);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-radius: var(--radius-pill);
  padding: 8px 16px;
  box-shadow: var(--shadow-sm);
  transition: box-shadow .3s ease, background .3s ease;
}

.navbar.scrolled {
  background: rgba(255, 255, 255, .92);
  box-shadow: var(--shadow-nav);
}

.logo {
  font-size: 20px;
  font-weight: 800;
  letter-spacing: -0.01em;
  color: var(--text);
  white-space: nowrap;
  display: inline-flex;
  align-items: baseline;
  gap: 2px;
  padding: 6px 8px;
  border-radius: var(--radius-pill);
  transition: color .3s ease;
}

.logo span {
  font-size: 14px;
  font-weight: 700;
  color: var(--accent);
  letter-spacing: 0.04em;
}

.logo:hover {
  color: var(--primary);
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 4px;
}

.nav-links a {
  display: inline-block;
  padding: 8px 18px;
  border-radius: var(--radius-pill);
  font-size: 15px;
  font-weight: 500;
  color: var(--text-secondary);
  transition: background .3s ease, color .3s ease;
}

.nav-links a:hover {
  background: var(--primary-light);
  color: var(--primary);
}

.nav-links a.active {
  background: var(--primary);
  color: #fff;
  font-weight: 600;
}

.nav-actions {
  display: flex;
  align-items: center;
  gap: 8px;
}

.nav-login {
  width: 40px;
  height: 40px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  color: var(--text-secondary);
  background: transparent;
  transition: background .3s ease, color .3s ease, transform .3s ease;
}

.nav-login:hover {
  background: var(--primary-light);
  color: var(--primary);
  transform: translateY(-1px);
}

.nav-login svg {
  width: 18px;
  height: 18px;
  stroke-width: 1.8;
}

.btn-nav {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  height: 42px;
  padding: 0 22px;
  border-radius: var(--radius-pill);
  background: var(--accent);
  color: var(--text);
  font-size: 15px;
  font-weight: 600;
  white-space: nowrap;
  transition: background .3s ease, transform .3s ease, box-shadow .3s ease;
}

.btn-nav:hover {
  background: var(--accent-dark);
  color: var(--text);
  transform: translateY(-1px);
  box-shadow: 0 6px 16px rgba(245, 158, 11, .3);
}

.nav-toggle {
  display: none;
  width: 44px;
  height: 44px;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 5px;
  border-radius: 12px;
  background: transparent;
  transition: background .3s ease;
}

.nav-toggle:hover {
  background: var(--primary-light);
}

.nav-toggle span {
  display: block;
  width: 22px;
  height: 2px;
  border-radius: 2px;
  background: var(--text);
  transition: transform .3s ease, opacity .3s ease;
}

.nav-toggle.open span:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}

.nav-toggle.open span:nth-child(2) {
  opacity: 0;
}

.nav-toggle.open span:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

/* ============ 按钮 ============ */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  border-radius: var(--radius-pill);
  padding: 14px 28px;
  font-size: 15px;
  font-weight: 600;
  line-height: 1;
  text-decoration: none;
  cursor: pointer;
  border: 1.5px solid transparent;
  transition: background .3s ease, color .3s ease, border-color .3s ease, transform .3s ease, box-shadow .3s ease;
}

.btn-primary {
  background: var(--primary);
  color: #fff;
}

.btn-primary:hover {
  background: var(--primary-dark);
  color: #fff;
  transform: translateY(-2px);
  box-shadow: 0 8px 20px rgba(14, 94, 79, .25);
}

.btn-primary:active {
  transform: translateY(0);
}

.btn-outline {
  background: transparent;
  border-color: var(--primary);
  color: var(--primary);
}

.btn-outline:hover {
  background: var(--primary-light);
  color: var(--primary-dark);
  border-color: var(--primary-dark);
  transform: translateY(-2px);
}

.btn-outline:active {
  transform: translateY(0);
}

.btn-accent {
  background: var(--accent);
  color: var(--text);
}

.btn-accent:hover {
  background: var(--accent-dark);
  color: var(--text);
  transform: translateY(-2px);
  box-shadow: 0 8px 20px rgba(245, 158, 11, .3);
}

.btn-accent:active {
  transform: translateY(0);
}

.btn-white {
  background: #fff;
  color: var(--primary);
}

.btn-white:hover {
  background: var(--bg-tint);
  color: var(--primary-dark);
  transform: translateY(-2px);
  box-shadow: 0 8px 20px rgba(0, 0, 0, .15);
}

.btn-lg {
  padding: 16px 36px;
  font-size: 16px;
}

/* ============ 分类页 Hero ============ */
.page-hero {
  background: var(--bg-tint);
  padding: 180px 0 64px;
  position: relative;
  overflow: hidden;
}

.page-hero::before {
  content: '';
  position: absolute;
  top: -80px;
  right: -80px;
  width: 320px;
  height: 320px;
  border-radius: 50%;
  border: 48px solid rgba(14, 94, 79, .06);
}

.page-hero::after {
  content: '';
  position: absolute;
  bottom: -60px;
  left: 30%;
  width: 180px;
  height: 180px;
  border-radius: 50%;
  border: 28px solid rgba(245, 158, 11, .08);
}

.page-hero-content {
  position: relative;
  z-index: 1;
  max-width: 780px;
}

.page-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: var(--accent);
  color: var(--text);
  border-radius: var(--radius-pill);
  padding: 6px 14px;
  font-size: 13px;
  font-weight: 600;
  margin-bottom: 20px;
  letter-spacing: .02em;
}

.page-hero h1 {
  font-size: clamp(32px, 4.5vw, 48px);
  line-height: 1.15;
  font-weight: 800;
  color: var(--text);
  letter-spacing: -0.02em;
}

.page-hero-sub {
  margin-top: 18px;
  font-size: 17px;
  line-height: 1.8;
  color: var(--text-secondary);
  max-width: 600px;
}

.page-hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-top: 32px;
}

/* ============ 本页内容索引 ============ */
.toc-section {
  padding: 48px 0 0;
}

.toc-card {
  max-width: 820px;
  margin: 0 auto;
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow-sm);
  padding: 28px 32px;
}

.toc-head {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 15px;
  font-weight: 700;
  color: var(--primary);
  margin-bottom: 18px;
  letter-spacing: .02em;
}

.toc-head svg {
  width: 18px;
  height: 18px;
  stroke-width: 2;
}

.toc-list {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 16px;
}

.toc-list a {
  position: relative;
  padding-left: 18px;
  font-size: 14px;
  font-weight: 500;
  color: var(--text-secondary);
  transition: color .3s ease;
}

.toc-list a::before {
  content: '';
  position: absolute;
  left: 0;
  top: 50%;
  transform: translateY(-50%);
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--accent);
  opacity: .7;
}

.toc-list a:hover {
  color: var(--primary);
}

/* ============ 社区介绍 ============ */
.section-intro {
  background: var(--card);
}

.intro-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 56px;
  align-items: center;
}

.intro-media {
  position: relative;
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
}

.intro-media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  min-height: 340px;
  transition: transform .5s ease;
}

.intro-media:hover img {
  transform: scale(1.03);
}

.intro-media::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, transparent 60%, rgba(14, 94, 79, .25));
  border-radius: var(--radius);
}

.intro-copy h2 {
  font-size: clamp(24px, 2.6vw, 32px);
  font-weight: 800;
  line-height: 1.3;
  color: var(--text);
  margin-bottom: 18px;
}

.intro-copy p {
  color: var(--text-secondary);
  margin-bottom: 16px;
}

.intro-list {
  margin-top: 20px;
  display: grid;
  gap: 12px;
}

.intro-list li {
  display: flex;
  gap: 10px;
  align-items: flex-start;
  font-size: 15px;
  color: var(--text);
  line-height: 1.6;
}

.intro-list li svg {
  flex-shrink: 0;
  width: 20px;
  height: 20px;
  color: var(--primary);
  stroke-width: 2;
  margin-top: 2px;
}

/* ============ 社区特色 2×2 ============ */
.section-features {
  background: var(--bg);
}

.features-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
}

.feature-card {
  display: flex;
  gap: 18px;
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 28px;
  box-shadow: var(--shadow-sm);
  transition: box-shadow .3s ease, transform .3s ease;
}

.feature-card:hover {
  box-shadow: var(--shadow-md);
  transform: translateY(-4px);
}

.feature-card:nth-child(even) {
  transform: translateY(12px);
}

.feature-card:nth-child(even):hover {
  transform: translateY(8px);
}

.feature-icon {
  flex-shrink: 0;
  width: 48px;
  height: 48px;
  border-radius: 14px;
  background: var(--primary-light);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  color: var(--primary);
}

.feature-icon svg {
  width: 24px;
  height: 24px;
  stroke-width: 1.8;
}

.feature-card h3 {
  font-size: 18px;
  font-weight: 700;
  margin-bottom: 6px;
  color: var(--text);
}

.feature-card p {
  font-size: 14px;
  line-height: 1.7;
  color: var(--text-secondary);
}

/* ============ 加入流程 ============ */
.section-steps {
  background: var(--card);
}

.steps-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}

.step-item {
  position: relative;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 32px 24px;
  text-align: center;
  transition: box-shadow .3s ease, transform .3s ease;
}

.step-item:hover {
  box-shadow: var(--shadow-md);
  transform: translateY(-4px);
}

.step-num {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: var(--primary);
  color: #fff;
  font-family: var(--font-num);
  font-size: 18px;
  font-weight: 700;
  margin-bottom: 16px;
}

.step-item:nth-child(2) .step-num {
  background: var(--accent);
  color: var(--text);
}

.step-item h3 {
  font-size: 17px;
  font-weight: 700;
  margin-bottom: 8px;
}

.step-item p {
  font-size: 14px;
  color: var(--text-secondary);
  line-height: 1.7;
}

/* ============ 会员方案对比 ============ */
.section-pricing {
  background: var(--bg);
}

.pricing-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  align-items: stretch;
}

.pricing-card {
  position: relative;
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 32px 28px;
  box-shadow: var(--shadow-sm);
  display: flex;
  flex-direction: column;
  transition: box-shadow .3s ease, transform .3s ease;
}

.pricing-card:hover {
  box-shadow: var(--shadow-md);
  transform: translateY(-4px);
}

.pricing-card.featured {
  border: 1.5px solid var(--primary);
  transform: translateY(-12px);
  box-shadow: var(--shadow-md);
  overflow: hidden;
}

.pricing-card.featured::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: var(--accent);
}

.pricing-card.featured:hover {
  transform: translateY(-14px);
  box-shadow: var(--shadow-md);
}

.pricing-flag {
  position: absolute;
  top: 18px;
  right: -30px;
  transform: rotate(45deg);
  background: var(--accent);
  color: var(--text);
  font-size: 12px;
  font-weight: 700;
  padding: 4px 32px;
  letter-spacing: .02em;
}

.pricing-name {
  font-size: 18px;
  font-weight: 700;
  color: var(--text);
  margin-bottom: 4px;
}

.pricing-desc {
  font-size: 13px;
  color: var(--text-muted);
  margin-bottom: 18px;
}

.pricing-price {
  display: flex;
  align-items: baseline;
  gap: 4px;
  margin-bottom: 22px;
}

.pricing-price .num {
  font-family: var(--font-num);
  font-size: 36px;
  font-weight: 800;
  color: var(--text);
  line-height: 1;
}

.pricing-price .unit {
  font-size: 14px;
  color: var(--text-secondary);
}

.pricing-featured .pricing-price .num {
  color: var(--primary);
}

.pricing-list {
  display: grid;
  gap: 10px;
  margin-bottom: 28px;
  flex: 1;
}

.pricing-list li {
  display: flex;
  gap: 10px;
  align-items: flex-start;
  font-size: 14px;
  color: var(--text);
  line-height: 1.6;
}

.pricing-list li svg {
  flex-shrink: 0;
  width: 18px;
  height: 18px;
  color: var(--primary);
  stroke-width: 2.2;
  margin-top: 3px;
}

.pricing-card .btn {
  width: 100%;
}

/* ============ FAQ ============ */
.section-faq {
  background: var(--card);
}

.faq-wrap {
  max-width: 820px;
  margin: 0 auto;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
}

.faq-item {
  border-bottom: 1px solid var(--border);
}

.faq-item:last-child {
  border-bottom: none;
}

.faq-question {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  width: 100%;
  padding: 22px 28px;
  font-size: 16px;
  font-weight: 600;
  color: var(--text);
  text-align: left;
  cursor: pointer;
  transition: background .3s ease;
}

.faq-question:hover {
  background: var(--bg-tint);
}

.faq-question .icon {
  flex-shrink: 0;
  width: 24px;
  height: 24px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  background: var(--primary-light);
  color: var(--primary);
  font-size: 18px;
  font-weight: 400;
  line-height: 1;
  transition: transform .3s ease, background .3s ease;
}

.faq-item.open .faq-question .icon {
  transform: rotate(45deg);
  background: var(--primary);
  color: #fff;
}

.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height .35s ease;
}

.faq-answer-content {
  padding: 0 28px 22px;
  font-size: 14px;
  line-height: 1.8;
  color: var(--text-secondary);
  background: var(--primary-light);
}

/* ============ CTA 横幅 ============ */
.cta-banner {
  background: var(--primary-dark);
  position: relative;
  overflow: hidden;
  padding: 80px 0;
}

.cta-banner::before {
  content: '';
  position: absolute;
  top: -80px;
  right: 10%;
  width: 260px;
  height: 260px;
  border-radius: 50%;
  border: 44px solid rgba(245, 158, 11, .08);
}

.cta-banner::after {
  content: '';
  position: absolute;
  bottom: -100px;
  left: -60px;
  width: 220px;
  height: 220px;
  border-radius: 50%;
  border: 32px solid rgba(255, 255, 255, .05);
}

.cta-inner {
  position: relative;
  z-index: 1;
  text-align: center;
  max-width: 680px;
  margin: 0 auto;
}

.cta-title {
  font-size: clamp(24px, 3vw, 34px);
  font-weight: 800;
  color: #fff;
  line-height: 1.3;
  letter-spacing: -0.01em;
}

.cta-desc {
  margin-top: 14px;
  font-size: 16px;
  color: rgba(255, 255, 255, .7);
  line-height: 1.8;
}

.cta-actions {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 14px;
  margin-top: 32px;
}

.cta-note {
  margin-top: 18px;
  font-size: 13px;
  color: rgba(255, 255, 255, .5);
}

/* ============ 页脚 ============ */
.site-footer {
  background: #0A2E27;
  color: rgba(255, 255, 255, .6);
  padding-top: 72px;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.6fr 1fr 1fr 1.2fr;
  gap: 48px;
  padding-bottom: 56px;
}

.footer-brand .logo {
  color: #fff;
  padding: 0;
  margin-bottom: 14px;
}

.footer-brand .logo span {
  color: var(--accent);
}

.footer-brand p {
  font-size: 14px;
  line-height: 1.8;
  margin-top: 12px;
}

.footer-col h4 {
  font-size: 15px;
  font-weight: 700;
  color: rgba(255, 255, 255, .9);
  margin-bottom: 16px;
}

.footer-col ul {
  display: grid;
  gap: 10px;
}

.footer-col ul a {
  font-size: 14px;
  color: rgba(255, 255, 255, .6);
  transition: color .3s ease;
}

.footer-col ul a:hover {
  color: #fff;
}

.footer-contact li {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  font-size: 14px;
  line-height: 1.6;
  color: rgba(255, 255, 255, .6);
}

.footer-contact svg {
  flex-shrink: 0;
  width: 18px;
  height: 18px;
  color: var(--accent);
  margin-top: 2px;
}

.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, .08);
  padding: 20px 0;
}

.footer-bottom .container {
  display: flex;
  justify-content: center;
  align-items: center;
}

.footer-bottom p {
  font-size: 13px;
  color: rgba(255, 255, 255, .4);
}

.footer-bottom a {
  color: rgba(255, 255, 255, .5);
  transition: color .3s ease;
}

.footer-bottom a:hover {
  color: #fff;
}

/* ============ 移动端菜单 ============ */
@media (max-width: 1024px) {
  .navbar {
    max-width: 100%;
    padding: 8px 16px;
  }

  .nav-links {
    display: none;
    position: absolute;
    top: calc(100% + 12px);
    left: 16px;
    right: 16px;
    background: rgba(255, 255, 255, .96);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-radius: 20px;
    box-shadow: var(--shadow-nav);
    padding: 16px;
    flex-direction: column;
    align-items: stretch;
    gap: 4px;
  }

  .nav-links.open {
    display: flex;
  }

  .nav-links a {
    padding: 12px 16px;
    font-size: 17px;
    border-radius: 12px;
  }

  .nav-toggle {
    display: flex;
  }

  .site-header {
    padding: 0 16px;
  }

  .btn-nav {
    display: none;
  }

  .nav-login {
    display: inline-flex;
  }

  .steps-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .pricing-grid {
    grid-template-columns: 1fr;
    max-width: 480px;
    margin: 0 auto;
  }

  .pricing-card.featured {
    transform: none;
    order: -1;
  }

  .pricing-card.featured:hover {
    transform: translateY(-4px);
  }

  .footer-grid {
    grid-template-columns: 1fr 1fr;
    gap: 36px;
  }
}

@media (max-width: 768px) {
  :root {
    --space: 56px;
    --space-mobile: 48px;
  }

  .container {
    padding: 0 16px;
  }

  .section-head {
    margin-bottom: 32px;
  }

  .page-hero {
    padding: 140px 0 48px;
  }

  .page-hero h1 {
    font-size: 30px;
  }

  .page-hero-sub {
    font-size: 15px;
  }

  .page-hero-actions {
    flex-direction: column;
    align-items: stretch;
  }

  .page-hero-actions .btn {
    width: 100%;
  }

  .intro-grid {
    grid-template-columns: 1fr;
    gap: 28px;
  }

  .intro-media img {
    min-height: auto;
    max-height: 260px;
  }

  .features-grid {
    grid-template-columns: 1fr;
  }

  .feature-card:nth-child(even) {
    transform: none;
  }

  .feature-card:nth-child(even):hover {
    transform: translateY(-4px);
  }

  .steps-grid {
    grid-template-columns: 1fr;
  }

  .faq-question {
    padding: 18px 20px;
    font-size: 15px;
  }

  .faq-answer-content {
    padding: 0 20px 18px;
  }

  .cta-banner {
    padding: 56px 0;
  }

  .cta-actions .btn {
    width: 100%;
  }

  .footer-grid {
    grid-template-columns: 1fr;
    gap: 32px;
    padding-bottom: 40px;
  }

  .footer-bottom .container {
    flex-direction: column;
    text-align: center;
    gap: 4px;
  }
}

@media (max-width: 520px) {
  .logo {
    font-size: 18px;
  }

  .logo span {
    font-size: 13px;
  }

  .toc-card {
    padding: 20px;
  }

  .feature-card {
    flex-direction: column;
  }

  .feature-icon {
    width: 44px;
    height: 44px;
  }

  .pricing-card {
    padding: 24px 20px;
  }
}

/* roulang page: category3 */
:root {
  --primary: #0E5E4F;
  --primary-dark: #0A4A3E;
  --accent: #F59E0B;
  --accent-light: #FCD34D;
  --bg: #F6F5F1;
  --bg-soft: #E9EFEB;
  --card-bg: #FFFFFF;
  --text: #1C1A17;
  --text-secondary: #57534E;
  --text-muted: #8A857A;
  --border: #E2DED3;
  --radius-card: 16px;
  --radius-btn: 999px;
  --radius-input: 12px;
  --shadow-card: 0 1px 3px rgba(28,26,23,.06), 0 4px 12px rgba(28,26,23,.05);
  --shadow-hover: 0 8px 30px rgba(28,26,23,.12);
  --shadow-nav: 0 8px 24px rgba(28,26,23,.10);
  --container-width: 1200px;
  --font-family: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", "Source Han Sans SC", system-ui, sans-serif;
}
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: var(--font-family);
  background: var(--bg);
  color: var(--text);
  line-height: 1.8;
  -webkit-font-smoothing: antialiased;
  padding-top: 92px;
}
img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
ul { list-style: none; }
button { font-family: inherit; cursor: pointer; }
.container { max-width: var(--container-width); margin: 0 auto; padding: 0 24px; }

/* ===== Header / Nav ===== */
.site-header {
  position: fixed;
  top: 16px;
  left: 50%;
  transform: translateX(-50%);
  width: calc(100% - 96px);
  max-width: 1360px;
  z-index: 100;
  background: rgba(255,255,255,.86);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-radius: 999px;
  box-shadow: var(--shadow-nav);
  padding: 10px 16px;
  transition: box-shadow .3s ease, background .3s ease;
}
.site-header.scrolled {
  background: rgba(255,255,255,.96);
  box-shadow: 0 8px 24px rgba(28,26,23,.16);
}
.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}
.logo {
  font-size: 20px;
  font-weight: 800;
  color: var(--primary-dark);
  white-space: nowrap;
  letter-spacing: -0.01em;
  line-height: 1.2;
}
.logo span {
  color: var(--accent);
  font-weight: 700;
}
.nav-links {
  display: flex;
  align-items: center;
  gap: 6px;
  margin: 0 auto;
}
.nav-links a {
  display: inline-block;
  padding: 10px 18px;
  border-radius: 999px;
  font-size: 15px;
  font-weight: 500;
  color: var(--text-secondary);
  transition: background .25s ease, color .25s ease;
}
.nav-links a:hover {
  background: rgba(14,94,79,.08);
  color: var(--primary);
}
.nav-links a.active {
  background: var(--primary);
  color: #fff;
}
.nav-right {
  display: flex;
  align-items: center;
  gap: 12px;
}
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  height: 44px;
  padding: 0 28px;
  border-radius: 999px;
  font-size: 15px;
  font-weight: 600;
  border: none;
  cursor: pointer;
  transition: all .25s ease;
  white-space: nowrap;
}
.btn-accent {
  background: var(--accent);
  color: var(--text);
}
.btn-accent:hover {
  background: #D97706;
  box-shadow: 0 8px 24px rgba(245,158,11,.3);
  transform: translateY(-2px);
}
.btn-accent:active { transform: translateY(0); }
.nav-toggle {
  display: none;
  width: 44px;
  height: 44px;
  align-items: center;
  justify-content: center;
  background: rgba(14,94,79,.08);
  border: none;
  border-radius: 12px;
  color: var(--primary);
}
.nav-toggle svg { width: 24px; height: 24px; }
.btn:focus-visible,
.btn-accent:focus-visible,
.nav-toggle:focus-visible,
.faq-question:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}

/* ===== Page Hero ===== */
.page-hero {
  background: linear-gradient(135deg, #E9EFEB 0%, #F6F5F1 100%);
  padding: 72px 0 56px;
  border-bottom: 1px solid var(--border);
}
.page-hero .container {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
}
.pill-badge {
  display: inline-flex;
  align-items: center;
  background: var(--accent);
  color: #1C1A17;
  font-size: 13px;
  font-weight: 600;
  padding: 6px 16px;
  border-radius: 999px;
  margin-bottom: 20px;
  letter-spacing: .02em;
}
.page-hero h1 {
  font-size: clamp(30px, 4vw, 42px);
  font-weight: 800;
  color: var(--primary-dark);
  line-height: 1.2;
  letter-spacing: -0.01em;
}
.page-hero p {
  margin-top: 16px;
  font-size: 17px;
  line-height: 1.8;
  color: var(--text-secondary);
  max-width: 680px;
}

/* ===== Intro ===== */
.intro-section {
  padding: 96px 0;
  background: var(--card-bg);
}
.intro-grid {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 64px;
  align-items: center;
}
.intro-text h2 {
  font-size: clamp(24px, 3vw, 32px);
  font-weight: 800;
  color: var(--text);
  line-height: 1.3;
  margin-bottom: 16px;
  letter-spacing: -0.01em;
}
.intro-text p {
  margin-bottom: 16px;
  color: var(--text-secondary);
  font-size: 16px;
}
.check-list {
  margin-top: 20px;
}
.check-list li {
  position: relative;
  padding-left: 32px;
  margin-bottom: 12px;
  font-size: 15px;
  color: var(--text);
}
.check-list li::before {
  content: "✓";
  position: absolute;
  left: 0;
  top: 3px;
  width: 20px;
  height: 20px;
  border-radius: 50%;
  background: var(--primary);
  color: #fff;
  font-size: 12px;
  text-align: center;
  line-height: 20px;
  font-weight: 700;
}
.intro-image img {
  width: 100%;
  height: 340px;
  object-fit: cover;
  border-radius: 16px;
  box-shadow: var(--shadow-card);
}

/* ===== Features 2x2 ===== */
.features-section {
  padding: 96px 0;
  background: var(--bg);
}
.section-head {
  text-align: center;
  max-width: 640px;
  margin: 0 auto 48px;
}
.section-head h2 {
  font-size: clamp(24px, 3vw, 32px);
  font-weight: 800;
  color: var(--text);
  line-height: 1.3;
}
.section-head p {
  color: var(--text-secondary);
  margin-top: 12px;
  font-size: 16px;
}
.feature-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
}
.feature-item {
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: var(--radius-card);
  padding: 28px;
  display: flex;
  gap: 18px;
  align-items: flex-start;
  transition: all .3s ease;
}
.feature-item:nth-child(even) {
  margin-top: 24px;
}
.feature-item:hover {
  box-shadow: var(--shadow-hover);
  transform: translateY(-4px);
}
.feature-icon {
  width: 52px;
  height: 52px;
  flex-shrink: 0;
  border-radius: 14px;
  background: rgba(14,94,79,.08);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--primary);
}
.feature-icon svg {
  width: 26px;
  height: 26px;
}
.feature-item h3 {
  font-size: 18px;
  font-weight: 700;
  color: var(--text);
  margin-bottom: 6px;
  line-height: 1.4;
}
.feature-item p {
  font-size: 14px;
  line-height: 1.7;
  color: var(--text-secondary);
}

/* ===== Flow ===== */
.flow-section {
  padding: 96px 0;
  background: var(--card-bg);
}
.flow-steps {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 32px;
  margin-top: 48px;
}
.flow-step {
  text-align: center;
  padding: 36px 24px;
  background: var(--bg);
  border-radius: 16px;
  position: relative;
  transition: all .3s ease;
  border: 1px solid transparent;
}
.flow-step:hover {
  border-color: var(--border);
  box-shadow: var(--shadow-hover);
  transform: translateY(-4px);
}
.flow-step::before {
  content: "";
  position: absolute;
  top: 50%;
  right: -32px;
  width: 32px;
  height: 2px;
  background: linear-gradient(90deg, var(--primary), var(--accent));
  transform: translateY(-50%);
}
.flow-step:last-child::before { display: none; }
.flow-num {
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background: var(--primary);
  color: #fff;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: 18px;
  box-shadow: 0 0 0 6px rgba(14,94,79,.12);
}
.flow-step h3 {
  font-size: 17px;
  font-weight: 700;
  color: var(--text);
  margin-top: 16px;
}
.flow-step p {
  font-size: 14px;
  color: var(--text-secondary);
  margin-top: 8px;
  line-height: 1.6;
}

/* ===== Scenario ===== */
.scenario-section {
  padding: 96px 0;
  background: var(--bg-soft);
}
.scenario-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  margin-top: 48px;
}
.scenario-card {
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 32px 28px;
  transition: all .3s ease;
}
.scenario-card:hover {
  box-shadow: var(--shadow-hover);
  transform: translateY(-4px);
}
.scenario-card .icon {
  width: 44px;
  height: 44px;
  border-radius: 12px;
  background: var(--accent);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text);
  margin-bottom: 20px;
}
.scenario-card .icon svg { width: 22px; height: 22px; }
.scenario-card h3 {
  font-size: 18px;
  font-weight: 700;
  color: var(--text);
  margin-bottom: 8px;
}
.scenario-card p {
  font-size: 14px;
  color: var(--text-secondary);
  line-height: 1.7;
}

/* ===== FAQ ===== */
.faq-section {
  padding: 96px 0;
  background: var(--bg);
}
.faq-list {
  max-width: 820px;
  margin: 48px auto 0;
  background: var(--card-bg);
  border-radius: var(--radius-card);
  border: 1px solid var(--border);
  overflow: hidden;
}
.faq-item {
  border-bottom: 1px solid var(--border);
  transition: background .3s ease;
}
.faq-item:last-child { border-bottom: none; }
.faq-item.open {
  background: rgba(14,94,79,.04);
}
.faq-question {
  width: 100%;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
  padding: 20px 24px;
  font-size: 16px;
  font-weight: 600;
  color: var(--text);
  background: none;
  border: none;
  text-align: left;
  transition: color .25s ease;
}
.faq-question:hover { color: var(--primary); }
.faq-icon {
  width: 20px;
  height: 20px;
  position: relative;
  flex-shrink: 0;
  transition: transform .3s ease;
}
.faq-icon::before,
.faq-icon::after {
  content: "";
  position: absolute;
  background: var(--primary);
  border-radius: 2px;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
}
.faq-icon::before {
  width: 2px;
  height: 16px;
}
.faq-icon::after {
  width: 16px;
  height: 2px;
}
.faq-item.open .faq-icon {
  transform: rotate(45deg);
}
.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height .35s ease;
}
.faq-answer p {
  padding: 0 24px 20px;
  color: var(--text-secondary);
  font-size: 14px;
  line-height: 1.8;
}

/* ===== CTA ===== */
.cta-section {
  background: linear-gradient(135deg, var(--primary-dark) 0%, var(--primary) 100%);
  padding: 96px 0;
  position: relative;
  overflow: hidden;
}
.cta-section::before {
  content: "";
  position: absolute;
  width: 320px;
  height: 320px;
  border-radius: 50%;
  border: 48px solid rgba(245,158,11,.08);
  top: -100px;
  right: -60px;
}
.cta-section::after {
  content: "";
  position: absolute;
  width: 220px;
  height: 220px;
  border: 30px solid rgba(255,255,255,.04);
  border-radius: 50%;
  bottom: -80px;
  left: -60px;
}
.cta-content {
  position: relative;
  z-index: 1;
  text-align: center;
}
.cta-section h2 {
  color: #fff;
  font-size: clamp(24px, 3vw, 34px);
  font-weight: 800;
  line-height: 1.25;
}
.cta-section p {
  color: rgba(255,255,255,.75);
  font-size: 16px;
  margin-top: 12px;
}
.cta-form {
  display: flex;
  gap: 16px;
  max-width: 760px;
  margin: 40px auto 0;
  flex-wrap: wrap;
  justify-content: center;
}
.cta-form input,
.cta-form select {
  flex: 1 1 160px;
  height: 48px;
  border-radius: 12px;
  border: 1px solid transparent;
  padding: 0 16px;
  font-size: 15px;
  font-family: inherit;
  color: var(--text);
  background: #fff;
  transition: border-color .25s, box-shadow .25s;
}
.cta-form input::placeholder {
  color: var(--text-muted);
}
.cta-form input:focus,
.cta-form select:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(245,158,11,.3);
}
.cta-form .btn-accent {
  height: 48px;
  padding: 0 36px;
}
.form-message {
  width: 100%;
  text-align: center;
  padding: 12px 20px;
  background: rgba(255,255,255,.1);
  color: #fff;
  border-radius: 12px;
  font-size: 14px;
  border: 1px solid rgba(255,255,255,.16);
}

/* ===== Footer ===== */
.site-footer {
  background: #0A2E27;
  color: rgba(255,255,255,.7);
  padding-top: 64px;
}
.footer-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr 1fr;
  gap: 48px;
  padding-bottom: 48px;
}
.footer-brand .logo {
  color: #fff;
}
.footer-brand .logo span {
  color: var(--accent);
}
.footer-brand p {
  color: rgba(255,255,255,.55);
  font-size: 14px;
  line-height: 1.8;
  margin-top: 16px;
}
.footer-col h4 {
  color: rgba(255,255,255,.9);
  font-size: 15px;
  font-weight: 600;
  margin-bottom: 16px;
}
.footer-col ul li {
  margin-bottom: 10px;
}
.footer-col a {
  color: rgba(255,255,255,.6);
  font-size: 14px;
  transition: color .25s;
}
.footer-col a:hover { color: #fff; }
.footer-contact li {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 14px;
  color: rgba(255,255,255,.6);
}
.footer-contact svg {
  width: 18px;
  height: 18px;
  flex-shrink: 0;
  color: var(--accent);
}
.footer-bottom {
  border-top: 1px solid rgba(255,255,255,.1);
  padding: 20px 0;
}
.footer-bottom p {
  font-size: 13px;
  color: rgba(255,255,255,.45);
  text-align: center;
}
.footer-bottom a {
  color: rgba(255,255,255,.6);
  transition: color .25s;
}
.footer-bottom a:hover { color: #fff; }

/* ===== Responsive ===== */
@media (max-width: 1024px) {
  .intro-grid {
    grid-template-columns: 1fr;
    gap: 40px;
  }
  .intro-image img {
    height: 280px;
  }
  .flow-steps {
    grid-template-columns: repeat(2, 1fr);
  }
  .flow-step::before { display: none; }
  .scenario-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .footer-grid {
    grid-template-columns: 1fr 1fr;
    gap: 36px;
  }
}
@media (max-width: 768px) {
  body {
    padding-top: 76px;
  }
  .site-header {
    width: calc(100% - 32px);
    top: 12px;
    padding: 8px 12px;
    border-radius: 24px;
  }
  .nav-links {
    display: none;
    position: absolute;
    top: calc(100% + 12px);
    left: 0;
    right: 0;
    background: rgba(255,255,255,.96);
    border-radius: 20px;
    padding: 20px;
    flex-direction: column;
    gap: 8px;
    box-shadow: var(--shadow-nav);
  }
  .nav-links.open {
    display: flex;
  }
  .nav-links a {
    width: 100%;
    text-align: center;
    padding: 12px;
  }
  .nav-cta-btn {
    display: none;
  }
  .nav-toggle {
    display: flex;
  }
  .page-hero {
    padding: 56px 0 40px;
  }
  .intro-section,
  .features-section,
  .flow-section,
  .scenario-section,
  .faq-section,
  .cta-section {
    padding: 56px 0;
  }
  .feature-grid {
    grid-template-columns: 1fr;
  }
  .feature-item:nth-child(even) {
    margin-top: 0;
  }
  .flow-steps {
    grid-template-columns: 1fr;
    gap: 16px;
  }
  .flow-step {
    text-align: left;
    display: flex;
    align-items: flex-start;
    gap: 16px;
    padding: 24px;
  }
  .flow-num {
    margin: 0;
    flex-shrink: 0;
  }
  .flow-step h3 {
    margin-top: 0;
  }
  .flow-step p {
    margin-top: 4px;
  }
  .scenario-grid {
    grid-template-columns: 1fr;
  }
  .cta-form input,
  .cta-form select,
  .cta-form .btn-accent {
    flex: 1 1 100%;
    width: 100%;
  }
  .footer-grid {
    grid-template-columns: 1fr;
    gap: 32px;
  }
  .footer-bottom p {
    font-size: 12px;
  }
}
@media (max-width: 520px) {
  .container {
    padding: 0 16px;
  }
  .logo {
    font-size: 17px;
  }
  .nav-links a {
    font-size: 17px;
  }
  .feature-item {
    flex-direction: column;
  }
}