/* roulang page: index */
:root{
  --field-900:#0F3D2E;
  --field-700:#175A45;
  --field-500:#2E7D63;
  --ember:#E4572E;
  --ember-dark:#C9451F;
  --champagne:#C9A55C;
  --sand-50:#F7F4ED;
  --sand-100:#EFEAE0;
  --white:#FFFFFF;
  --ink-900:#141E1A;
  --ink-500:#5A6B63;
  --line:rgba(15,61,46,.12);
  --line-strong:rgba(15,61,46,.22);
  --radius-card:14px;
  --radius-btn:8px;
  --shadow-sm:0 1px 2px rgba(20,30,26,.05);
  --shadow-md:0 14px 34px -20px rgba(15,61,46,.35);
  --ease:cubic-bezier(.2,.7,.3,1);
  --container:1200px;
  --nav-h:68px;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;}
body{
  margin:0;
  background:var(--sand-50);
  color:var(--ink-900);
  font-family:"Noto Sans SC","PingFang SC","Microsoft YaHei",system-ui,-apple-system,sans-serif;
  font-size:16px;
  line-height:1.9;
  letter-spacing:.01em;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;height:auto;display:block;}
a{color:var(--field-900);text-decoration:none;transition:color 160ms var(--ease);}
a:hover{color:var(--ember);}
button,input,select,textarea{font-family:inherit;font-size:inherit;}
h1,h2,h3,h4{
  font-family:"Noto Serif SC","Songti SC",serif;
  font-weight:700;
  color:var(--field-900);
  letter-spacing:.015em;
  line-height:1.25;
  margin:0;
}
p{margin:0 0 1.1em;}
ul,ol{margin:0;padding:0;list-style:none;}
button{background:none;border:0;cursor:pointer;}
:focus-visible{outline:2px solid var(--field-500);outline-offset:2px;}
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 24px;}
@media (min-width:1440px){:root{--container:1320px;}}
.section{padding:96px 0;}
.section--sand{background:var(--sand-100);}
.section--tight{padding-top:0;}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:12px 28px;border-radius:var(--radius-btn);
  font-size:15px;font-weight:500;letter-spacing:.02em;
  border:1px solid transparent;
  transition:background-color 160ms var(--ease),color 160ms var(--ease),border-color 160ms var(--ease),transform 160ms var(--ease),box-shadow 160ms var(--ease);
}
.btn i{transition:transform 160ms var(--ease);font-size:13px;}
.btn:hover i{transform:translateX(4px);}
.btn:active{transform:translateY(1px);}
.btn-primary{background:var(--field-900);color:#fff;border-color:var(--field-900);}
.btn-primary:hover{background:var(--field-700);border-color:var(--field-700);color:#fff;box-shadow:var(--shadow-md);}
.btn-ghost{background:transparent;color:var(--field-900);border-color:var(--field-900);}
.btn-ghost:hover{background:rgba(15,61,46,.06);color:var(--field-700);}
.btn-ember{background:var(--ember);color:#fff;border-color:var(--ember);}
.btn-ember:hover{background:var(--ember-dark);border-color:var(--ember-dark);color:#fff;box-shadow:0 14px 34px -18px rgba(228,87,46,.6);}
.btn-block{width:100%;}

/* ---------- badge / tag ---------- */
.badge{
  display:inline-flex;align-items:center;gap:6px;
  padding:3px 12px;border-radius:999px;
  font-size:12px;line-height:1.8;letter-spacing:.05em;
  border:1px solid var(--champagne);color:#8A6C2C;background:transparent;
}
.badge--solid{background:var(--field-500);border-color:var(--field-500);color:#fff;}
.tag{
  display:inline-flex;align-items:center;
  padding:2px 10px;border-radius:4px;
  background:rgba(46,125,99,.1);color:var(--field-700);
  font-size:12.5px;letter-spacing:.04em;
}

/* ---------- header / nav ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(247,244,237,.94);
  backdrop-filter:saturate(150%) blur(8px);
  border-bottom:1px solid var(--line);
}
.nav-inner{
  max-width:var(--container);margin:0 auto;padding:0 24px;
  height:var(--nav-h);
  display:flex;align-items:center;justify-content:space-between;gap:24px;
}
.nav-left{display:flex;align-items:center;gap:36px;min-width:0;}
.brand{
  font-family:"Noto Serif SC",serif;font-weight:700;
  font-size:20px;letter-spacing:.04em;color:var(--field-900);
  display:flex;align-items:center;gap:10px;white-space:nowrap;
}
.brand::before{
  content:"";width:10px;height:22px;border-radius:3px;
  background:linear-gradient(180deg,var(--field-900),var(--field-500));
}
.brand:hover{color:var(--field-700);}
.nav-links{display:flex;align-items:center;gap:28px;}
.nav-link{
  position:relative;font-size:15px;color:var(--ink-500);
  padding:6px 0;white-space:nowrap;
}
.nav-link::after{
  content:"";position:absolute;left:0;right:0;bottom:-2px;height:2px;
  background:var(--field-500);transform:scaleX(0);transform-origin:left;
  transition:transform 240ms var(--ease);
}
.nav-link:hover{color:var(--field-900);}
.nav-link:hover::after{transform:scaleX(1);}
.nav-link.is-active{color:var(--field-900);font-weight:700;}
.nav-link.is-active::after{transform:scaleX(1);}
.nav-right{display:flex;align-items:center;gap:16px;}
.nav-sub{font-size:14px;color:var(--ink-500);}
.nav-sub:hover{color:var(--field-900);}
.nav-search{position:relative;}
.search-toggle{
  width:38px;height:38px;border-radius:50%;
  display:flex;align-items:center;justify-content:center;
  color:var(--field-900);border:1px solid var(--line);
  transition:background-color 160ms var(--ease),border-color 160ms var(--ease);
}
.search-toggle:hover{background:rgba(15,61,46,.06);border-color:var(--line-strong);}
.search-panel{
  position:absolute;right:0;top:calc(100% + 12px);width:280px;
  background:#fff;border:1px solid var(--line);border-radius:var(--radius-card);
  box-shadow:var(--shadow-md);padding:12px;
  opacity:0;visibility:hidden;transform:translateY(-6px);
  transition:opacity 200ms var(--ease),transform 200ms var(--ease),visibility 200ms;
}
.search-panel.is-open{opacity:1;visibility:visible;transform:translateY(0);}
.search-panel input{
  width:100%;height:44px;border-radius:8px;border:1px solid var(--line);
  padding:0 14px;background:var(--sand-50);color:var(--ink-900);
}
.search-panel input:focus{outline:none;border-color:var(--field-500);box-shadow:0 0 0 2px rgba(15,61,46,.12);}
.nav-toggle{
  display:none;width:40px;height:40px;border-radius:8px;
  align-items:center;justify-content:center;
  color:var(--field-900);border:1px solid var(--line);font-size:17px;
}
.nav-toggle:hover{background:rgba(15,61,46,.06);}

/* mobile drawer */
.mobile-drawer{
  position:fixed;inset:0;z-index:90;
  background:var(--sand-50);
  display:none;flex-direction:column;
  padding:20px 22px 32px;overflow-y:auto;
}
.mobile-drawer.is-open{display:flex;}
.drawer-head{display:flex;align-items:center;justify-content:space-between;height:52px;}
.drawer-close{
  width:40px;height:40px;border-radius:8px;border:1px solid var(--line);
  display:flex;align-items:center;justify-content:center;color:var(--field-900);font-size:16px;
}
.drawer-group-label{
  font-size:13px;letter-spacing:.08em;color:var(--ink-500);
  text-transform:uppercase;margin:22px 0 6px;
}
.drawer-link{
  display:flex;align-items:center;justify-content:space-between;
  min-height:52px;font-size:16px;color:var(--ink-900);
  border-bottom:1px solid var(--line);
}
.drawer-link.is-active{color:var(--field-900);font-weight:700;}
.drawer-link i{font-size:12px;color:var(--ink-500);}
.drawer-cta{margin-top:24px;display:grid;gap:12px;}
.drawer-foot{margin-top:auto;padding-top:28px;font-size:13.5px;color:var(--ink-500);line-height:2;}

/* ---------- hero ---------- */
.hero{
  padding-top:calc(var(--nav-h) + 16px);
  background:var(--sand-50);
  border-bottom:1px solid var(--line);
}
.hero-split{
  max-width:var(--container);margin:0 auto;
  display:grid;grid-template-columns:55% 45%;align-items:stretch;
}
.hero-content{
  padding:72px 56px 72px 24px;
  display:flex;flex-direction:column;justify-content:center;
}
.hero-eyebrow{
  display:inline-flex;align-items:center;gap:10px;
  font-size:13px;letter-spacing:.08em;color:var(--field-700);
  margin-bottom:20px;
}
.hero-eyebrow span{display:block;width:28px;height:1px;background:var(--champagne);}
.hero-title{
  font-size:clamp(2.2rem,4.6vw,3.6rem);
  line-height:1.2;margin-bottom:20px;
}
.hero-sub{
  font-size:17px;color:var(--ink-500);max-width:34em;margin-bottom:32px;
}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:44px;}
.hero-stats{
  display:grid;grid-template-columns:repeat(3,minmax(0,1fr));
  gap:20px;border-top:1px solid var(--line);padding-top:24px;max-width:520px;
}
.hero-stat b{
  display:block;font-family:"Inter",sans-serif;font-size:26px;font-weight:600;
  color:var(--field-900);line-height:1.2;
}
.hero-stat span{font-size:13.5px;color:var(--ink-500);}
.hero-visual{
  position:relative;min-height:520px;
  border-left:1px solid var(--champagne);
  background-image:url("/assets/images/backpic/back-1.webp");
  background-size:cover;background-position:center;
}
.hero-visual::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(115deg,rgba(15,61,46,.62) 0%,rgba(15,61,46,.16) 48%,rgba(15,61,46,0) 100%);
}
.hero-visual-card{
  position:absolute;left:28px;bottom:28px;z-index:2;
  background:rgba(255,255,255,.95);border:1px solid var(--line);
  border-radius:var(--radius-card);padding:18px 20px;max-width:290px;
  box-shadow:var(--shadow-sm);
}
.hero-visual-card strong{
  display:block;font-family:"Noto Serif SC",serif;font-size:16px;
  color:var(--field-900);margin-bottom:6px;
}
.hero-visual-card p{margin:0;font-size:13.5px;line-height:1.7;color:var(--ink-500);}

/* ---------- section head ---------- */
.section-head{max-width:760px;margin-bottom:44px;}
.section-head .eyebrow{
  display:inline-block;font-size:13px;letter-spacing:.1em;
  color:var(--champagne);font-weight:700;margin-bottom:12px;
}
.section-title{font-size:clamp(1.6rem,2.6vw,2.3rem);margin-bottom:14px;}
.section-desc{font-size:16px;color:var(--ink-500);margin:0;}

/* ---------- plan table ---------- */
.table-scroll{
  overflow-x:auto;border:1px solid var(--line);border-radius:var(--radius-card);
  background:#fff;box-shadow:var(--shadow-sm);
  -webkit-overflow-scrolling:touch;
}
.plan-table{
  width:100%;border-collapse:separate;border-spacing:0;min-width:900px;margin:0;
  background:#fff;font-size:15px;
}
.plan-table th,.plan-table td{
  padding:0 18px;height:52px;text-align:left;
  border-bottom:1px solid var(--line);
  vertical-align:middle;
}
.plan-table thead th{
  height:60px;background:var(--sand-100);
  font-family:"Noto Serif SC",serif;font-size:15.5px;color:var(--field-900);
  border-bottom:1px solid var(--line-strong);white-space:nowrap;
}
.plan-table tbody tr:hover td{background:#F2EFE7;}
.plan-table tbody tr:last-child td{border-bottom:0;}
.plan-table th:first-child,.plan-table td:first-child{
  position:sticky;left:0;z-index:2;background:#fff;
  font-weight:500;color:var(--ink-900);min-width:200px;
  box-shadow:1px 0 0 var(--line);
}
.plan-table thead th:first-child{background:var(--sand-100);}
.plan-table tbody tr:hover td:first-child{background:#F2EFE7;}
.plan-table .col-hot{background:rgba(46,125,99,.055);}
.plan-table tbody tr:hover .col-hot{background:rgba(46,125,99,.1);}
.plan-table .col-hot.start{border-left:2px solid var(--field-500);}
.plan-table .col-hot.end{border-right:2px solid var(--field-500);}
.plan-table .tier-head{display:flex;align-items:center;gap:8px;}
.plan-table td .yes{color:var(--field-500);font-weight:600;}
.plan-table td .no{color:#B9C2BC;}
.plan-foot{margin-top:22px;display:flex;flex-wrap:wrap;gap:12px;align-items:center;}
.table-hint{font-size:13px;color:var(--ink-500);}

/* ---------- tier highlights ---------- */
.tier-row{
  display:grid;grid-template-columns:1fr 1fr;gap:56px;align-items:center;
  padding:40px 0;border-bottom:1px solid var(--line);
}
.tier-row:last-child{border-bottom:0;padding-bottom:0;}
.tier-row.reverse .tier-media{order:2;}
.tier-row.reverse .tier-body{order:1;}
.tier-media img{border-radius:var(--radius-card);box-shadow:var(--shadow-sm);width:100%;height:260px;object-fit:cover;}
.tier-body{border-left:3px solid var(--field-500);padding-left:24px;}
.tier-row:nth-child(2) .tier-body{border-left-color:var(--field-700);}
.tier-row:nth-child(3) .tier-body{border-left-color:var(--field-900);}
.tier-num{
  font-family:"Noto Serif SC",serif;font-size:44px;line-height:1;
  color:var(--field-900);opacity:.28;display:block;margin-bottom:10px;
}
.tier-body h3{font-size:22px;margin-bottom:12px;}
.tier-points{display:grid;gap:10px;margin:0;}
.tier-points li{
  position:relative;padding-left:22px;font-size:15px;color:var(--ink-500);line-height:1.8;
}
.tier-points li::before{
  content:"";position:absolute;left:0;top:.72em;width:8px;height:1px;background:var(--champagne);
}

/* ---------- preview ---------- */
.preview-grid{display:grid;grid-template-columns:60% 40%;gap:24px;}
.preview-card{
  position:relative;display:block;background:#fff;border:1px solid var(--line);
  border-radius:var(--radius-card);overflow:hidden;box-shadow:var(--shadow-sm);
  transition:transform 160ms var(--ease),box-shadow 160ms var(--ease),border-color 160ms var(--ease);
}
.preview-card:hover{transform:translateY(-3px);border-color:var(--field-500);box-shadow:var(--shadow-md);}
.preview-card img{width:100%;object-fit:cover;}
.preview-main img{height:340px;}
.preview-side{display:grid;gap:24px;align-content:start;}
.preview-side .preview-card{display:grid;grid-template-columns:132px 1fr;}
.preview-side .preview-card img{height:100%;min-height:132px;}
.preview-body{padding:22px 24px;}
.preview-side .preview-body{padding:18px 20px;}
.preview-body h3{font-size:19px;margin-bottom:10px;line-height:1.4;}
.preview-side .preview-body h3{font-size:16px;margin-bottom:8px;}
.preview-body p{font-size:14.5px;color:var(--ink-500);margin:0;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.preview-meta{margin-top:14px;display:flex;align-items:center;gap:10px;font-size:13px;color:var(--ink-500);}
.lock-badge{
  position:absolute;right:14px;top:14px;z-index:3;
  display:inline-flex;align-items:center;gap:6px;
  padding:4px 12px;border-radius:999px;font-size:12px;
  background:rgba(20,30,26,.72);color:#fff;letter-spacing:.04em;
}
.is-locked img{filter:grayscale(45%) contrast(.96);}

/* ---------- stats band ---------- */
.stats-band{
  background:var(--field-900);color:#fff;border-radius:18px;
  padding:56px 48px;
  display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:32px;
  position:relative;overflow:hidden;
}
.stats-band::before{
  content:"";position:absolute;right:-120px;top:-120px;width:340px;height:340px;
  border-radius:50%;background:rgba(201,165,92,.14);
}
.stats-band .stat b{
  display:block;font-family:"Inter",sans-serif;font-size:34px;font-weight:600;
  color:#fff;line-height:1.2;
}
.stats-band .stat span{display:block;font-size:14px;color:rgba(255,255,255,.7);margin-top:6px;}
.stats-band .stat{position:relative;z-index:2;border-left:2px solid var(--champagne);padding-left:18px;}
.quote-strip{
  margin-top:32px;display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:24px;
}
.quote{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius-card);
  padding:26px 28px;box-shadow:var(--shadow-sm);
}
.quote p{font-size:15px;color:var(--ink-900);margin-bottom:16px;}
.quote footer{font-size:13.5px;color:var(--ink-500);display:flex;align-items:center;gap:10px;}
.quote footer::before{content:"";width:22px;height:1px;background:var(--champagne);}

/* ---------- news ---------- */
.news-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px;}
.news-card{
  display:flex;flex-direction:column;background:#fff;
  border:1px solid var(--line);border-radius:var(--radius-card);overflow:hidden;
  box-shadow:var(--shadow-sm);height:100%;
  transition:transform 160ms var(--ease),box-shadow 160ms var(--ease),border-color 160ms var(--ease);
}
.news-card:hover{transform:translateY(-3px);border-color:var(--field-500);box-shadow:var(--shadow-md);}
.news-card img{width:100%;height:186px;object-fit:cover;transition:transform 240ms var(--ease);}
.news-card:hover img{transform:scale(1.03);}
.news-body{padding:20px 22px 22px;display:flex;flex-direction:column;flex:1;}
.news-body h3{
  font-size:17px;line-height:1.5;margin-bottom:10px;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.news-body p{
  font-size:14px;color:var(--ink-500);margin:0 0 18px;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.news-meta{
  margin-top:auto;display:flex;align-items:center;justify-content:space-between;
  gap:10px;font-size:13px;color:var(--ink-500);
  border-top:1px solid var(--line);padding-top:14px;
}
.news-empty{
  grid-column:1/-1;min-height:180px;
  display:flex;flex-direction:column;align-items:center;justify-content:center;gap:14px;
  background:#fff;border:1px dashed var(--line-strong);border-radius:var(--radius-card);
  color:var(--ink-500);font-size:15px;text-align:center;padding:32px;
}
.news-empty i{font-size:24px;color:var(--field-500);}
.news-more{margin-top:36px;display:flex;justify-content:center;}

/* ---------- faq ---------- */
.faq-wrap{max-width:920px;}
.accordion{border:0;background:transparent;margin:0;}
.accordion .accordion-item{
  border:1px solid var(--line);border-radius:var(--radius-card);
  background:#fff;margin-bottom:12px;overflow:hidden;box-shadow:var(--shadow-sm);
}
.accordion .accordion-title{
  min-height:56px;display:flex;align-items:center;
  padding:14px 60px 14px 24px;font-size:16px;font-weight:500;
  color:var(--ink-900);border:0;background:#fff;line-height:1.6;
  transition:color 160ms var(--ease),background-color 160ms var(--ease);
}
.accordion .accordion-title:hover,.accordion .accordion-title:focus{
  background:#F2EFE7;color:var(--field-900);outline:none;
}
.accordion .accordion-title::before{
  content:"+";position:absolute;right:20px;top:50%;transform:translateY(-50%);
  width:28px;height:28px;border-radius:50%;border:1px solid var(--line-strong);
  display:flex;align-items:center;justify-content:center;
  font-size:16px;line-height:1;color:var(--field-900);
  transition:transform 240ms var(--ease),background-color 160ms var(--ease);
}
.accordion .accordion-item.is-active .accordion-title::before{
  content:"+";transform:translateY(-50%) rotate(45deg);background:rgba(46,125,99,.1);
}
.accordion .accordion-title{position:relative;}
.accordion .accordion-content{
  border:0;background:#fff;padding:0 24px 22px;color:var(--ink-500);
  font-size:15px;line-height:1.85;max-width:720px;
}
.accordion .accordion-content p:last-child{margin-bottom:0;}

/* ---------- CTA ---------- */
.cta-band{
  background:var(--field-900);color:#fff;border-radius:18px;
  padding:56px 48px;display:grid;grid-template-columns:1fr 420px;gap:56px;
  position:relative;overflow:hidden;
}
.cta-band::after{
  content:"";position:absolute;left:-100px;bottom:-140px;width:360px;height:360px;
  border-radius:50%;background:rgba(201,165,92,.12);
}
.cta-copy{position:relative;z-index:2;}
.cta-copy h2{color:#fff;font-size:clamp(1.6rem,2.4vw,2.1rem);margin-bottom:16px;}
.cta-copy p{color:rgba(255,255,255,.78);font-size:15.5px;margin-bottom:22px;max-width:32em;}
.cta-list{display:grid;gap:10px;}
.cta-list li{
  position:relative;padding-left:22px;font-size:15px;color:rgba(255,255,255,.9);
}
.cta-list li::before{
  content:"";position:absolute;left:0;top:.75em;width:8px;height:8px;
  border-radius:50%;background:var(--champagne);
}
.cta-form{
  position:relative;z-index:2;background:#fff;border-radius:var(--radius-card);
  padding:28px;box-shadow:0 24px 50px -30px rgba(0,0,0,.5);
}
.field-label{display:block;font-size:13.5px;color:var(--ink-500);margin-bottom:8px;}
.cta-form input[type="text"]{
  width:100%;height:52px;border-radius:8px;border:1px solid var(--line);
  padding:0 16px;background:var(--sand-50);color:var(--ink-900);margin-bottom:16px;
}
.cta-form input[type="text"]:focus{
  outline:none;border-color:var(--field-500);box-shadow:0 0 0 2px rgba(15,61,46,.12);background:#fff;
}
.check-line{
  display:flex;align-items:flex-start;gap:10px;font-size:13.5px;
  color:var(--ink-500);line-height:1.6;margin-bottom:18px;
}
.check-line input{margin-top:4px;accent-color:var(--field-500);width:16px;height:16px;}
.form-note{font-size:12.5px;color:var(--ink-500);margin:14px 0 0;text-align:center;}

/* ---------- footer ---------- */
.site-footer{background:var(--field-900);color:rgba(255,255,255,.78);margin-top:96px;}
.footer-inner{
  max-width:var(--container);margin:0 auto;padding:72px 24px 0;
  display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:40px;
}
.footer-brand{
  font-family:"Noto Serif SC",serif;font-size:20px;color:#fff;
  display:flex;align-items:center;gap:10px;margin-bottom:16px;
}
.footer-brand::before{
  content:"";width:10px;height:22px;border-radius:3px;
  background:linear-gradient(180deg,var(--champagne),var(--field-500));
}
.footer-col p{font-size:14px;line-height:1.9;margin:0 0 10px;}
.footer-col h4{
  font-size:13px;letter-spacing:.08em;color:#fff;margin-bottom:18px;
  font-family:"Noto Sans SC",sans-serif;font-weight:500;
}
.footer-col ul{display:grid;gap:11px;}
.footer-col a{font-size:14px;color:rgba(255,255,255,.78);}
.footer-col a:hover{color:var(--champagne);}
.footer-contact{font-size:14px;line-height:2;}
.footer-contact span{display:block;color:rgba(255,255,255,.55);font-size:12.5px;}
.footer-bottom{
  max-width:var(--container);margin:56px auto 0;padding:22px 24px 32px;
  border-top:1px solid rgba(255,255,255,.12);
  display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;
  font-size:13px;color:rgba(255,255,255,.6);
}

/* ---------- reveal ---------- */
.reveal{opacity:0;transform:translateY(8px);transition:opacity 420ms var(--ease),transform 420ms var(--ease);}
.reveal.is-in{opacity:1;transform:none;}

/* ---------- responsive ---------- */
@media (max-width:1279px){
  .hero-content{padding:64px 40px 64px 24px;}
  .cta-band{grid-template-columns:1fr 380px;gap:40px;}
}
@media (max-width:1023px){
  :root{--nav-h:60px;}
  .nav-links{gap:20px;}
  .nav-inner{padding:0 20px;}
  .hero-split{grid-template-columns:60% 40%;}
  .hero-visual{min-height:440px;}
  .section{padding:72px 0;}
  .preview-grid{grid-template-columns:1fr;}
  .preview-side{grid-template-columns:repeat(2,minmax(0,1fr));}
  .preview-side .preview-card{grid-template-columns:1fr;}
  .preview-side .preview-card img{height:170px;min-height:0;}
  .stats-band{grid-template-columns:repeat(2,minmax(0,1fr));padding:44px 32px;gap:28px;}
  .news-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
  .cta-band{grid-template-columns:1fr;padding:44px 32px;}
  .footer-inner{grid-template-columns:1fr 1fr;gap:36px;}
  .tier-row{gap:32px;}
}
@media (max-width:767px){
  :root{--nav-h:56px;}
  .nav-links,.nav-sub{display:none;}
  .nav-toggle{display:flex;}
  .nav-left{gap:0;}
  body{font-size:15.5px;}
  .container{padding:0 16px;}
  .nav-inner{padding:0 16px;}
  .hero-split{grid-template-columns:1fr;}
  .hero-content{padding:48px 16px 48px;}
  .hero-visual{min-height:280px;border-left:0;border-top:1px solid var(--champagne);order:2;}
  .hero-visual-card{left:16px;right:16px;bottom:16px;max-width:none;}
  .hero-stats{grid-template-columns:repeat(3,minmax(0,1fr));gap:12px;}
  .hero-stat b{font-size:20px;}
  .section{padding:56px 0;}
  .section-head{margin-bottom:30px;}
  .tier-row,.tier-row.reverse{grid-template-columns:1fr;gap:20px;}
  .tier-row.reverse .tier-media,.tier-row.reverse .tier-body{order:0;}
  .tier-media img{height:200px;}
  .preview-side{grid-template-columns:1fr;}
  .preview-main img{height:220px;}
  .stats-band{grid-template-columns:1fr;padding:36px 24px;border-radius:14px;}
  .quote-strip{grid-template-columns:1fr;}
  .news-grid{grid-template-columns:1fr;}
  .cta-band{padding:36px 22px;border-radius:14px;}
  .cta-form{padding:22px;}
  .footer-inner{grid-template-columns:1fr;padding:52px 16px 0;}
  .footer-bottom{padding:20px 16px 28px;}
  .site-footer{margin-top:56px;}
  .accordion .accordion-title{font-size:15px;padding:14px 54px 14px 18px;}
  .accordion .accordion-content{padding:0 18px 20px;}
}
@media (max-width:420px){
  .hero-title{font-size:1.9rem;}
  .hero-actions .btn{width:100%;}
  .plan-table{font-size:14px;}
}
@media (prefers-reduced-motion:reduce){
  *{transition:none !important;animation:none !important;}
  .reveal{opacity:1;transform:none;}
}

/* roulang page: category1 */
:root{
  --field-900:#0F3D2E;
  --field-700:#175A45;
  --field-500:#2E7D63;
  --ember:#E4572E;
  --ember-dark:#c9451f;
  --champagne:#C9A55C;
  --sand-50:#F7F4ED;
  --sand-100:#EFEAE0;
  --white:#FFFFFF;
  --ink-900:#141E1A;
  --ink-500:#5A6B63;
  --line:rgba(15,61,46,.12);
  --line-strong:rgba(15,61,46,.22);
  --radius-card:14px;
  --radius-btn:8px;
  --radius-pill:999px;
  --shadow-1:0 1px 2px rgba(20,30,26,.05);
  --shadow-2:0 14px 34px -20px rgba(15,61,46,.35);
  --ease:cubic-bezier(.2,.7,.3,1);
  --nav-h:68px;
  --serif:"Noto Serif SC","Songti SC",STSong,serif;
  --sans:"Noto Sans SC",-apple-system,"PingFang SC","Microsoft YaHei",sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  font-family:var(--sans);
  font-size:16.5px;
  line-height:1.92;
  color:var(--ink-900);
  background:var(--sand-50);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;height:auto}
a{color:var(--field-900);text-decoration:none;transition:color 160ms var(--ease)}
a:hover{color:var(--ember)}
button,input{font-family:inherit;font-size:inherit}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4{font-family:var(--serif);font-weight:700;color:var(--ink-900);margin:0;letter-spacing:.015em;line-height:1.25}
p{margin:0 0 1.1em}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px}
:focus-visible{outline:2px solid var(--field-500);outline-offset:2px}

/* ---------- Buttons ---------- */
.btn{
  display:inline-flex;align-items:center;gap:8px;
  padding:12px 26px;border-radius:var(--radius-btn);
  font-size:15px;font-weight:500;line-height:1.2;
  border:1px solid transparent;cursor:pointer;
  transition:background 160ms var(--ease),color 160ms var(--ease),border-color 160ms var(--ease),transform 160ms var(--ease);
}
.btn i{transition:transform 160ms var(--ease);font-size:13px}
.btn-primary{background:var(--field-900);color:#fff}
.btn-primary:hover{background:var(--field-700);color:#fff}
.btn-primary:hover i{transform:translateX(4px)}
.btn-primary:active{transform:translateY(1px)}
.btn-ghost{background:transparent;color:var(--field-900);border-color:var(--line-strong)}
.btn-ghost:hover{border-color:var(--field-900);color:var(--field-900);background:rgba(15,61,46,.04)}
.btn-ember{background:var(--ember);color:#fff}
.btn-ember:hover{background:var(--ember-dark);color:#fff}
.btn-ember:hover i{transform:translateX(4px)}
.btn-ember:active{transform:translateY(1px)}
.btn-sm{padding:9px 18px;font-size:14px}

/* ---------- Header / Nav ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(247,244,237,.94);
  backdrop-filter:saturate(1.1) blur(6px);
  border-bottom:1px solid var(--line);
}
.header-inner{
  max-width:1200px;margin:0 auto;padding:0 24px;
  height:var(--nav-h);display:flex;align-items:center;justify-content:space-between;gap:24px;
}
.header-left{display:flex;align-items:center;gap:34px;min-width:0}
.brand{
  font-family:var(--serif);font-size:23px;font-weight:700;letter-spacing:.06em;
  color:var(--field-900);white-space:nowrap;
}
.brand span{color:var(--champagne)}
.brand:hover{color:var(--field-700)}
.nav-links{display:flex;align-items:center;gap:28px}
.nav-link{
  position:relative;font-size:15px;color:var(--ink-900);padding:6px 0;
}
.nav-link::after{
  content:"";position:absolute;left:0;right:0;bottom:0;height:2px;
  background:var(--field-900);transform:scaleX(0);transform-origin:left;
  transition:transform 240ms var(--ease);
}
.nav-link:hover{color:var(--field-700)}
.nav-link:hover::after{transform:scaleX(1)}
.nav-link.is-active{font-weight:700;color:var(--field-900)}
.nav-link.is-active::after{transform:scaleX(1)}
.header-right{display:flex;align-items:center;gap:16px}
.login-link{font-size:14px;color:var(--ink-500)}
.login-link:hover{color:var(--ember)}
.icon-btn{
  width:40px;height:40px;border-radius:var(--radius-pill);
  border:1px solid var(--line);background:transparent;color:var(--field-900);
  display:inline-flex;align-items:center;justify-content:center;cursor:pointer;
  transition:border-color 160ms var(--ease),background 160ms var(--ease);
}
.icon-btn:hover{border-color:var(--field-500);background:#fff}
.menu-toggle{display:none}
.search-panel{
  border-top:1px solid var(--line);background:var(--white);
  max-height:0;overflow:hidden;transition:max-height 240ms var(--ease);
}
.search-panel.is-open{max-height:96px}
.search-panel .search-row{
  max-width:1200px;margin:0 auto;padding:16px 24px;display:flex;gap:12px;align-items:center;
}
.search-row input{
  flex:1;height:48px;border-radius:var(--radius-btn);border:1px solid var(--line);
  padding:0 16px;background:var(--sand-50);color:var(--ink-900);
}
.search-row input:focus{outline:none;border-color:var(--field-500);box-shadow:0 0 0 3px rgba(15,61,46,.12)}
.drawer{
  position:fixed;inset:0;z-index:90;background:var(--sand-50);
  transform:translateX(-100%);transition:transform 240ms var(--ease);
  display:flex;flex-direction:column;padding:20px 22px;overflow-y:auto;
}
.drawer.is-open{transform:translateX(0)}
.drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:18px}
.drawer-group-title{font-size:13px;letter-spacing:.08em;color:var(--ink-500);margin:18px 0 6px}
.drawer-link{
  display:flex;align-items:center;height:52px;font-size:16px;color:var(--ink-900);
  border-bottom:1px solid var(--line);
}
.drawer-link.is-active{color:var(--field-900);font-weight:700}
.drawer-cta{margin-top:26px;display:flex;flex-direction:column;gap:12px}
.drawer-foot{margin-top:auto;padding-top:24px;font-size:13px;color:var(--ink-500);line-height:1.8}

/* ---------- Hero ---------- */
.page-hero{
  position:relative;
  background-image:url('/assets/images/backpic/back-2.webp');
  background-size:cover;background-position:center right;
  border-bottom:1px solid var(--line);
}
.page-hero::before{
  content:"";position:absolute;inset:0;
  background:linear-gradient(105deg,rgba(15,61,46,.90) 0%,rgba(15,61,46,.78) 46%,rgba(15,61,46,.34) 100%);
}
.page-hero .hero-inner{position:relative;z-index:2;padding:52px 0 54px;max-width:760px}
.breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:rgba(255,255,255,.72);margin-bottom:20px}
.breadcrumb a{color:rgba(255,255,255,.86)}
.breadcrumb a:hover{color:#fff}
.breadcrumb .sep{color:rgba(255,255,255,.45)}
.breadcrumb .current{color:#fff}
.page-hero h1{
  color:#fff;font-size:clamp(1.9rem,4vw,2.9rem);line-height:1.28;margin-bottom:14px;
}
.page-hero .hero-sub{
  color:rgba(255,255,255,.86);font-size:17px;line-height:1.8;margin:0;max-width:600px;
}
.page-hero .hero-rule{width:64px;height:2px;background:var(--champagne);margin:0 0 20px}

/* ---------- Layout: sticky toc + content ---------- */
.main-section{padding:72px 0 24px}
.layout-grid{display:grid;grid-template-columns:260px minmax(0,1fr);gap:56px;align-items:start}
.toc{
  position:sticky;top:calc(var(--nav-h) + 24px);
  background:var(--white);border:1px solid var(--line);border-radius:var(--radius-card);
  padding:22px 20px;box-shadow:var(--shadow-1);
}
.toc h2{font-size:15px;font-family:var(--sans);font-weight:700;letter-spacing:.06em;color:var(--ink-500);margin-bottom:14px}
.toc ol{counter-reset:toc}
.toc li{counter-increment:toc;margin-bottom:2px}
.toc a{
  display:flex;gap:10px;align-items:baseline;
  padding:9px 10px;border-radius:8px;font-size:14.5px;color:var(--ink-900);
  transition:background 160ms var(--ease),color 160ms var(--ease);
}
.toc a::before{
  content:counter(toc,decimal-leading-zero);
  font-family:var(--serif);font-size:12px;color:var(--champagne);flex:0 0 auto;
}
.toc a:hover{background:var(--sand-100);color:var(--field-900)}
.toc .toc-cta{margin-top:18px;padding-top:16px;border-top:1px solid var(--line)}
.toc .toc-cta p{font-size:13px;color:var(--ink-500);line-height:1.7;margin-bottom:12px}

.content-body{max-width:760px}
.content-body h2{
  font-size:clamp(1.5rem,2.4vw,2rem);
  margin:56px 0 18px;padding-left:16px;border-left:3px solid var(--field-500);
  scroll-margin-top:calc(var(--nav-h) + 20px);
}
.content-body h2:first-child{margin-top:0}
.content-body h3{font-size:1.19rem;margin:30px 0 12px}
.content-body p{color:#22302b}
.lead{
  font-size:18px;line-height:1.9;color:var(--ink-900);
  border-left:2px solid var(--champagne);padding-left:20px;
  background:var(--sand-100);border-radius:0 var(--radius-card) var(--radius-card) 0;
  padding:20px 22px;
}
.check-list{margin:22px 0 8px;display:grid;gap:14px}
.check-list li{display:flex;gap:14px;align-items:flex-start}
.check-list .num{
  flex:0 0 auto;width:30px;height:30px;border-radius:var(--radius-pill);
  border:1px solid var(--champagne);color:var(--field-900);
  font-family:var(--serif);font-size:14px;font-weight:700;
  display:flex;align-items:center;justify-content:center;
}
.check-list b{display:block;font-size:16px;margin-bottom:2px}
.check-list span{font-size:15px;color:var(--ink-500);line-height:1.8}
.figure{margin:30px 0 34px}
.figure img{border-radius:var(--radius-card);border:1px solid var(--line);Width:100%}
.figure figcaption{font-size:13px;color:var(--ink-500);text-align:center;margin-top:10px}

/* ---------- Table ---------- */
.table-block{margin:34px 0 8px}
.table-scroll{
  overflow-x:auto;border:1px solid var(--line);border-radius:var(--radius-card);background:var(--white);
  -webkit-overflow-scrolling:touch;
}
table{width:100%;border-collapse:collapse;min-width:640px}
caption{text-align:left;font-size:14px;color:var(--ink-500);padding:0 0 12px}
thead th{
  background:var(--sand-100);font-family:var(--sans);font-size:14px;font-weight:700;
  color:var(--field-900);text-align:left;height:46px;padding:0 18px;border-bottom:1px solid var(--line);
  letter-spacing:.03em;
}
tbody td,tbody th{
  height:54px;padding:0 18px;font-size:15px;border-bottom:1px solid var(--line);text-align:left;
  font-weight:400;color:#22302b;
}
tbody th{font-weight:500;color:var(--ink-900);background:var(--sand-50)}
tbody tr:last-child td,tbody tr:last-child th{border-bottom:none}
tbody tr:hover td,tbody tr:hover th{background:#F2EFE7}
.tick{color:var(--field-500);font-weight:700}
.dash{color:#B8C0BB}
.table-hint{font-size:13px;color:var(--ink-500);margin-top:10px}

/* ---------- Section head ---------- */
.section{padding:80px 0}
.section-alt{background:var(--sand-100)}
.section-head{max-width:720px;margin-bottom:40px}
.section-head .kicker{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;letter-spacing:.1em;color:var(--champagne);
  font-weight:700;margin-bottom:12px;
}
.section-head h2{font-size:clamp(1.6rem,2.6vw,2.3rem);margin-bottom:14px}
.section-head p{color:var(--ink-500);font-size:16px;margin:0}

/* ---------- Scenario cards ---------- */
.card-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px}
.card{
  background:var(--white);border:1px solid var(--line);border-radius:var(--radius-card);
  box-shadow:var(--shadow-1);overflow:hidden;
  transition:transform 160ms var(--ease),box-shadow 240ms var(--ease),border-color 160ms var(--ease);
  display:flex;flex-direction:column;
}
.card:hover{transform:translateY(-3px);box-shadow:var(--shadow-2);border-color:var(--field-500)}
.card .card-img{aspect-ratio:16/9;overflow:hidden}
.card .card-img img{width:100%;height:100%;object-fit:cover;transition:transform 420ms var(--ease)}
.card:hover .card-img img{transform:scale(1.03)}
.card-body{padding:22px 22px 24px;display:flex;flex-direction:column;gap:10px;flex:1}
.tag{
  align-self:flex-start;display:inline-flex;align-items:center;
  padding:4px 12px;border-radius:var(--radius-pill);
  border:1px solid var(--champagne);color:var(--field-900);
  font-size:12.5px;letter-spacing:.04em;
}
.card h3{font-size:17px;line-height:1.5}
.card p{font-size:14.5px;color:var(--ink-500);line-height:1.8;margin:0}
.card .card-foot{margin-top:auto;padding-top:8px;font-size:14px;font-weight:500;color:var(--field-900)}
.card .card-foot i{font-size:12px;margin-left:6px;transition:transform 160ms var(--ease)}
.card:hover .card-foot i{transform:translateX(4px)}

/* ---------- Steps ---------- */
.steps{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:24px;counter-reset:step}
.step{
  position:relative;background:var(--white);border:1px solid var(--line);
  border-radius:var(--radius-card);padding:26px 22px 24px;box-shadow:var(--shadow-1);
  border-top:3px solid var(--field-500);
}
.step::before{
  counter-increment:step;content:counter(step,decimal-leading-zero);
  font-family:var(--serif);font-size:34px;font-weight:700;color:rgba(15,61,46,.16);
  display:block;line-height:1;margin-bottom:10px;
}
.step h3{font-size:16.5px;margin-bottom:8px}
.step p{font-size:14.5px;color:var(--ink-500);margin:0;line-height:1.8}

/* ---------- FAQ ---------- */
.faq-wrap{max-width:860px}
.faq-item{
  background:var(--white);border:1px solid var(--line);border-radius:var(--radius-card);
  margin-bottom:14px;overflow:hidden;transition:border-color 160ms var(--ease),box-shadow 160ms var(--ease);
}
.faq-item[open]{border-color:var(--field-500);box-shadow:var(--shadow-1)}
.faq-item summary{
  list-style:none;cursor:pointer;min-height:58px;padding:16px 60px 16px 22px;
  position:relative;font-size:16px;font-weight:500;color:var(--ink-900);
  display:flex;align-items:center;
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary:hover{color:var(--field-900)}
.faq-item summary::after{
  content:"+";position:absolute;right:20px;top:50%;transform:translateY(-50%);
  width:28px;height:28px;border-radius:var(--radius-pill);border:1px solid var(--line-strong);
  display:flex;align-items:center;justify-content:center;font-size:15px;color:var(--field-900);
  transition:transform 240ms var(--ease),background 160ms var(--ease);
}
.faq-item[open] summary::after{content:"−";transform:translateY(-50%) rotate(90deg);background:var(--sand-100)}
.faq-answer{padding:0 22px 22px;max-width:720px;font-size:15px;color:var(--ink-500);line-height:1.85}

/* ---------- CTA ---------- */
.cta-block{background:var(--field-900);color:#fff;padding:72px 0}
.cta-inner{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,440px);gap:56px;align-items:center}
.cta-block h2{color:#fff;font-size:clamp(1.6rem,2.6vw,2.2rem);margin-bottom:14px}
.cta-block p{color:rgba(255,255,255,.78);font-size:15.5px;margin-bottom:0;max-width:520px}
.cta-list{display:flex;flex-wrap:wrap;gap:10px;margin-top:22px}
.cta-list span{
  font-size:13px;padding:6px 14px;border-radius:var(--radius-pill);
  border:1px solid rgba(255,255,255,.24);color:rgba(255,255,255,.9);
}
.cta-form{background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.16);border-radius:var(--radius-card);padding:26px}
.field{margin-bottom:16px}
.field label{display:block;font-size:13.5px;color:rgba(255,255,255,.82);margin-bottom:8px}
.field input[type="text"],.field input[type="tel"]{
  width:100%;height:52px;border-radius:var(--radius-btn);
  border:1px solid rgba(255,255,255,.22);background:rgba(255,255,255,.06);
  color:#fff;padding:0 16px;transition:border-color 160ms var(--ease),box-shadow 160ms var(--ease);
}
.field input::placeholder{color:rgba(255,255,255,.45)}
.field input:focus{outline:none;border-color:var(--field-500);box-shadow:0 0 0 3px rgba(46,125,99,.35)}
.agree{display:flex;gap:10px;align-items:flex-start;font-size:13px;color:rgba(255,255,255,.72);margin:6px 0 18px;line-height:1.7}
.agree input{margin-top:3px}
.cta-form .btn{width:100%;justify-content:center}
.form-note{font-size:12.5px;color:rgba(255,255,255,.55);margin:12px 0 0}

/* ---------- Footer ---------- */
.site-footer{background:var(--field-900);color:rgba(255,255,255,.78);padding:64px 0 0}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:40px;padding-bottom:44px}
.footer-brand .brand{color:#fff;display:inline-block;margin-bottom:14px}
.footer-brand .brand:hover{color:var(--champagne)}
.footer-brand p{font-size:14px;line-height:1.85;margin:0 0 8px}
.footer-note{
  display:inline-block;margin-top:10px;font-size:13px;padding:5px 13px;
  border-radius:var(--radius-pill);border:1px solid rgba(255,255,255,.22);color:rgba(255,255,255,.9);
}
.footer-col h3{font-size:13px;letter-spacing:.08em;color:#fff;font-family:var(--sans);font-weight:700;margin-bottom:16px}
.footer-col a{display:block;font-size:14px;color:rgba(255,255,255,.78);padding:5px 0}
.footer-col a:hover{color:var(--champagne)}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.12);padding:20px 0 28px;
  display:flex;flex-wrap:wrap;gap:10px;justify-content:space-between;font-size:13px;color:rgba(255,255,255,.6);
}

/* ---------- Responsive ---------- */
@media (max-width:1280px){
  .layout-grid{gap:40px}
}
@media (max-width:1023px){
  :root{--nav-h:60px}
  .nav-links{gap:20px}
  .layout-grid{grid-template-columns:220px minmax(0,1fr);gap:32px}
  .card-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .steps{grid-template-columns:repeat(2,minmax(0,1fr))}
  .cta-inner{grid-template-columns:1fr;gap:34px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
}
@media (max-width:767px){
  :root{--nav-h:56px}
  body{font-size:16px}
  .header-inner{padding:0 16px}
  .nav-links,.login-link{display:none}
  .menu-toggle{display:inline-flex}
  .container{padding:0 18px}
  .search-panel .search-row{padding:14px 18px}
  .page-hero .hero-inner{padding:38px 0 40px}
  .main-section{padding:48px 0 16px}
  .layout-grid{grid-template-columns:1fr;gap:28px}
  .toc{position:static}
  .content-body{max-width:none}
  .content-body h2{margin-top:44px}
  .section{padding:56px 0}
  .card-grid{grid-template-columns:1fr}
  .steps{grid-template-columns:1fr}
  .cta-block{padding:56px 0}
  .footer-grid{grid-template-columns:1fr;gap:28px}
  .footer-bottom{flex-direction:column}
}
@media (max-width:420px){
  .page-hero h1{font-size:1.62rem}
  .btn{padding:12px 20px;font-size:14.5px}
  .card-body{padding:18px}
}
@media (prefers-reduced-motion:reduce){
  *{transition:none!important;animation:none!important}
  html{scroll-behavior:auto}
}

/* roulang page: article */
:root{
  --field-900:#0F3D2E;
  --field-700:#175A45;
  --field-500:#2E7D63;
  --ember:#E4572E;
  --champagne:#C9A55C;
  --sand-50:#F7F4ED;
  --sand-100:#EFEAE0;
  --white:#FFFFFF;
  --ink-900:#141E1A;
  --ink-500:#5A6B63;
  --line:rgba(15,61,46,.12);
  --font-serif:"Noto Serif SC","Source Han Serif SC","Songti SC","SimSun",serif;
  --font-sans:"Noto Sans SC","PingFang SC","Microsoft YaHei",-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;
  --radius-card:14px;
  --radius-btn:8px;
  --shadow-1:0 1px 2px rgba(20,30,26,.05);
  --shadow-2:0 14px 34px -20px rgba(15,61,46,.35);
  --ease:cubic-bezier(.2,.7,.3,1);
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  background:var(--sand-50);
  color:var(--ink-900);
  font-family:var(--font-sans);
  font-size:16px;
  line-height:1.85;
  letter-spacing:.01em;
  -webkit-font-smoothing:antialiased;
}
img{display:block;max-width:100%;height:auto}
a{color:var(--field-900);text-decoration:none;transition:color .16s var(--ease)}
a:hover{color:var(--ember)}
button,input{font:inherit}
button{cursor:pointer}
ul,ol{margin:0}
:focus-visible{outline:2px solid var(--field-500);outline-offset:2px}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px}
@media (min-width:1440px){.container{max-width:1320px}}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  border-radius:var(--radius-btn);border:1px solid transparent;
  padding:12px 28px;font-size:15px;font-weight:500;line-height:1.2;
  transition:background-color .16s var(--ease),color .16s var(--ease),border-color .16s var(--ease),transform .16s var(--ease),box-shadow .16s var(--ease);
}
.btn-primary{background:var(--field-900);color:#fff}
.btn-primary:hover{background:var(--field-700);color:#fff;transform:translateY(-1px);box-shadow:0 10px 24px -16px rgba(15,61,46,.7)}
.btn-primary:active{transform:translateY(0)}
.btn-ghost{background:transparent;color:var(--field-900);border-color:var(--field-900)}
.btn-ghost:hover{background:rgba(15,61,46,.06);color:var(--field-900)}
.btn-ember{background:var(--ember);color:#fff}
.btn-ember:hover{background:#cf4a24;color:#fff;transform:translateY(-1px)}
.btn-sm{padding:9px 18px;font-size:14px}
.btn-block{width:100%}
.btn .arrow{transition:transform .16s var(--ease)}
.btn:hover .arrow{transform:translateX(4px)}

/* ---------- 顶部导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(247,244,237,.94);
  backdrop-filter:blur(10px);
  border-bottom:1px solid var(--line);
}
.header-inner{display:flex;align-items:center;justify-content:space-between;gap:24px;min-height:68px}
.header-left{display:flex;align-items:center;min-width:0}
.brand{display:inline-flex;align-items:center;gap:10px;font-family:var(--font-serif);font-size:20px;font-weight:700;color:var(--field-900);letter-spacing:.01em}
.brand:hover{color:var(--field-900)}
.brand-mark{
  width:34px;height:34px;border-radius:9px;background:var(--field-900);color:#fff;
  display:grid;place-items:center;font-size:15px;font-family:var(--font-sans);font-weight:500;letter-spacing:0;
}
.nav-links{display:flex;align-items:center;gap:28px;margin-left:36px}
.nav-link{position:relative;font-size:15px;font-weight:500;color:var(--ink-500);padding:6px 0}
.nav-link:hover{color:var(--field-900)}
.nav-link.is-active{color:var(--field-900);font-weight:700}
.nav-link.is-active::after{content:"";position:absolute;left:0;right:0;bottom:-2px;height:2px;border-radius:2px;background:var(--field-500)}
.header-right{display:flex;align-items:center;gap:14px}
.nav-login{font-size:14px;color:var(--ink-500)}
.nav-login:hover{color:var(--field-900)}
.search-toggle{
  width:40px;height:40px;border-radius:var(--radius-btn);border:1px solid var(--line);
  background:#fff;color:var(--field-900);display:grid;place-items:center;
  transition:border-color .16s var(--ease),color .16s var(--ease),background-color .16s var(--ease);
}
.search-toggle:hover{border-color:var(--field-500);color:var(--field-700)}
.search-toggle svg{width:18px;height:18px}
.search-row{display:none;border-top:1px solid var(--line);padding:14px 0}
.search-row.is-open{display:block}
.search-form{display:flex;gap:12px;max-width:560px}
.search-form input{
  flex:1 1 auto;height:46px;border:1px solid var(--line);border-radius:var(--radius-btn);
  padding:0 14px;background:#fff;color:var(--ink-900);font-size:15px;
}
.search-form input::placeholder{color:rgba(90,107,99,.75)}
.search-form input:focus{outline:none;border-color:var(--field-500);box-shadow:0 0 0 3px rgba(15,61,46,.12)}
.menu-toggle{
  display:none;width:44px;height:44px;border-radius:var(--radius-btn);
  border:1px solid var(--line);background:#fff;color:var(--field-900);
  place-items:center;
}
.menu-toggle span{display:block;width:18px;height:2px;background:currentColor;border-radius:2px;position:relative}
.menu-toggle span::before,.menu-toggle span::after{content:"";position:absolute;left:0;width:18px;height:2px;background:currentColor;border-radius:2px}
.menu-toggle span::before{top:-6px}
.menu-toggle span::after{top:6px}

/* ---------- 移动抽屉 ---------- */
.drawer{
  position:fixed;inset:0;z-index:90;background:var(--sand-50);
  transform:translateX(100%);transition:transform .24s var(--ease);
  display:flex;flex-direction:column;padding:16px 20px 36px;overflow-y:auto;
}
.drawer.is-open{transform:translateX(0)}
.drawer-top{display:flex;align-items:center;justify-content:space-between;margin-bottom:22px}
.drawer-close{
  width:44px;height:44px;border-radius:var(--radius-btn);border:1px solid var(--line);
  background:#fff;color:var(--field-900);font-size:22px;line-height:1;
}
.drawer-label{font-size:13px;letter-spacing:.08em;color:var(--ink-500);margin:18px 0 8px}
.drawer-nav a{
  display:flex;align-items:center;min-height:52px;font-size:17px;color:var(--ink-900);
  border-bottom:1px solid var(--line);
}
.drawer-nav a:hover{color:var(--field-700)}
.drawer-cta{display:grid;gap:12px;margin-top:22px}
.drawer-foot{margin-top:auto;padding-top:28px;font-size:13px;color:var(--ink-500);line-height:1.9}

/* ---------- 面包屑 ---------- */
.breadcrumb{padding:26px 0 0;font-size:13px;color:var(--ink-500)}
.breadcrumb ol{display:flex;flex-wrap:wrap;gap:8px;list-style:none;padding:0}
.breadcrumb li{max-width:100%}
.breadcrumb li+li::before{content:"/";margin-right:8px;color:rgba(15,61,46,.32)}
.breadcrumb a{color:var(--ink-500)}
.breadcrumb a:hover{color:var(--field-900)}
.breadcrumb .current{color:var(--ink-900);display:inline-block;max-width:52vw;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;vertical-align:bottom}

/* ---------- 文章头部 ---------- */
.article-head{padding:20px 0 28px;border-bottom:1px solid var(--line)}
.article-head h1{
  font-family:var(--font-serif);font-weight:700;letter-spacing:.01em;
  font-size:clamp(1.9rem,3.6vw,2.9rem);line-height:1.28;margin:0 0 20px;
}
.article-meta{display:flex;flex-wrap:wrap;align-items:center;gap:14px;font-size:14px;color:var(--ink-500)}
.tag{
  display:inline-flex;align-items:center;height:26px;padding:0 12px;border-radius:999px;
  border:1px solid var(--champagne);color:var(--field-900);font-size:12px;letter-spacing:.04em;background:transparent;
}
.meta-dot{width:4px;height:4px;border-radius:50%;background:rgba(15,61,46,.25);display:inline-block}

/* ---------- 正文布局 ---------- */
.article-layout{
  display:grid;grid-template-columns:minmax(0,1fr);gap:56px;
  padding:48px 0 0;align-items:start;
}
.article-layout.has-toc{grid-template-columns:minmax(0,1fr) 260px}
.article-main{min-width:0}

/* ---------- 目录 ---------- */
.toc{position:sticky;top:96px;background:var(--white);border:1px solid var(--line);border-radius:var(--radius-card);padding:20px 18px}
.toc h2{font-family:var(--font-sans);font-size:13px;font-weight:500;letter-spacing:.08em;color:var(--ink-500);margin:0 0 12px}
.toc ol{list-style:none;padding:0;counter-reset:toc}
.toc li{margin-bottom:8px;font-size:14px;line-height:1.55}
.toc a{display:block;color:var(--ink-500);padding:4px 0 4px 10px;border-left:2px solid transparent;transition:color .16s var(--ease),border-color .16s var(--ease)}
.toc a:hover,.toc a.is-active{color:var(--field-900);border-left-color:var(--field-500)}

/* ---------- 正文排版 ---------- */
.article-body{max-width:760px;font-size:17px;line-height:1.9;letter-spacing:.01em;color:var(--ink-900)}
.article-body > *:first-child{margin-top:0}
.article-body p{margin:0 0 1.1em}
.article-body strong{font-weight:700}
.article-body h2{
  position:relative;font-family:var(--font-serif);font-weight:700;
  font-size:clamp(1.35rem,2.2vw,1.6rem);line-height:1.38;margin:40px 0 16px;padding-left:14px;
}
.article-body h2::before{content:"";position:absolute;left:0;top:.28em;bottom:.28em;width:3px;border-radius:2px;background:var(--field-500)}
.article-body h3{font-family:var(--font-serif);font-weight:600;font-size:1.25rem;line-height:1.4;margin:28px 0 12px}
.article-body h4{font-size:1.05rem;margin:22px 0 10px}
.article-body ul,.article-body ol{padding-left:22px;margin:0 0 1.1em}
.article-body li{margin-bottom:.5em}
.article-body blockquote{
  margin:24px 0;padding:16px 20px;background:var(--sand-100);
  border-left:2px solid var(--champagne);color:var(--ink-500);border-radius:0 var(--radius-btn) var(--radius-btn) 0;
}
.article-body blockquote p:last-child{margin-bottom:0}
.article-body img{border-radius:var(--radius-card);margin:26px 0}
.article-body figure{margin:26px 0}
.article-body figcaption{font-size:13px;color:var(--ink-500);text-align:center;margin-top:10px}
.article-body a{border-bottom:1px solid rgba(15,61,46,.3)}
.article-body a:hover{border-bottom-color:var(--ember)}
.article-body table{width:100%;border-collapse:collapse;margin:26px 0;font-size:15px}
.article-body thead th{background:var(--sand-100);color:var(--field-900);font-weight:500;text-align:left}
.article-body th,.article-body td{padding:12px 14px;border-bottom:1px solid var(--line)}
.article-body tbody tr:hover{background:#F2EFE7}
.article-body pre{
  background:var(--sand-100);border:1px solid var(--line);border-radius:var(--radius-btn);
  padding:16px;overflow-x:auto;font-size:14px;line-height:1.7;
}
.article-body code{font-family:"SFMono-Regular",Consolas,"Liberation Mono",monospace;font-size:.92em}
.article-empty{
  padding:48px 28px;border:1px dashed var(--line);border-radius:var(--radius-card);
  background:var(--white);text-align:center;color:var(--ink-500);
}
.article-empty p{margin:0 0 18px;font-size:16px}

/* ---------- 文末 CTA 条 ---------- */
.article-cta{
  margin-top:52px;display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;
  gap:18px;background:var(--sand-100);border:1px solid var(--line);border-radius:var(--radius-card);
  padding:24px 28px;
}
.article-cta p{margin:0;font-size:15px;color:var(--ink-500);max-width:620px}

/* ---------- 板块与卡片 ---------- */
.section{padding:72px 0 0}
.section-head{margin-bottom:32px;max-width:720px}
.section-eyebrow{font-size:13px;letter-spacing:.08em;color:var(--field-500);margin:0 0 10px}
.section-title{font-family:var(--font-serif);font-weight:700;font-size:clamp(1.5rem,2.4vw,2rem);line-height:1.32;margin:0 0 12px}
.section-desc{margin:0;color:var(--ink-500);font-size:15px}
.card-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px}
.post-card{
  display:flex;flex-direction:column;background:var(--white);border:1px solid var(--line);
  border-radius:var(--radius-card);overflow:hidden;box-shadow:var(--shadow-1);
  transition:transform .16s var(--ease),box-shadow .16s var(--ease),border-color .16s var(--ease);
}
.post-card:hover{transform:translateY(-3px);border-color:var(--field-500);box-shadow:var(--shadow-2)}
.post-card img{width:100%;aspect-ratio:16/9;object-fit:cover}
.post-card-body{padding:20px;display:flex;flex-direction:column;flex:1 1 auto}
.post-card h3{font-size:17px;line-height:1.5;margin:0 0 10px;font-weight:700}
.post-card h3 a{color:var(--ink-900)}
.post-card h3 a:hover{color:var(--field-700)}
.post-card p{margin:0 0 16px;font-size:14px;color:var(--ink-500);line-height:1.75}
.post-card-meta{margin-top:auto;display:flex;align-items:center;justify-content:space-between;gap:12px;font-size:13px;color:var(--ink-500)}

/* ---------- FAQ ---------- */
.faq-list{max-width:860px;margin:0 auto;padding:0;list-style:none}
.faq-item{background:var(--white);border:1px solid var(--line);border-radius:12px;margin-bottom:14px;overflow:hidden;transition:border-color .16s var(--ease)}
.faq-item:hover{border-color:var(--field-500)}
.faq-item summary{
  list-style:none;display:flex;align-items:center;justify-content:space-between;gap:16px;
  min-height:56px;padding:16px 22px;font-size:16px;font-weight:500;color:var(--ink-900);
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-icon{
  flex:0 0 auto;width:28px;height:28px;border-radius:50%;border:1px solid var(--line);
  display:grid;place-items:center;font-size:15px;color:var(--field-900);
  transition:transform .24s var(--ease),border-color .16s var(--ease);
}
.faq-item[open] .faq-icon{transform:rotate(45deg);border-color:var(--field-500)}
.faq-answer{padding:0 22px 20px;max-width:720px;font-size:15px;line-height:1.8;color:var(--ink-500)}
.faq-answer p{margin:0}

/* ---------- 订阅 CTA ---------- */
.cta-band{
  position:relative;overflow:hidden;margin-top:72px;border-radius:18px;
  background:var(--field-900);color:#fff;padding:48px;
  display:grid;grid-template-columns:1.05fr .95fr;gap:44px;align-items:center;
}
.cta-band::before{
  content:"";position:absolute;inset:0;pointer-events:none;
  background:url(/assets/images/backpic/back-3.png) center/cover no-repeat;opacity:.16;
}
.cta-band > *{position:relative;z-index:1}
.cta-band h2{font-family:var(--font-serif);font-weight:700;font-size:clamp(1.5rem,2.4vw,2rem);line-height:1.35;margin:0 0 14px;color:#fff}
.cta-band p{margin:0;color:rgba(255,255,255,.76);font-size:15px;line-height:1.85}
.cta-form{display:grid;gap:14px}
.cta-form label{font-size:13px;letter-spacing:.06em;color:rgba(255,255,255,.7)}
.cta-form input[type="tel"]{
  width:100%;height:52px;border-radius:var(--radius-btn);border:1px solid rgba(255,255,255,.25);
  background:rgba(255,255,255,.08);color:#fff;padding:0 16px;font-size:15px;
}
.cta-form input[type="tel"]::placeholder{color:rgba(255,255,255,.55)}
.cta-form input[type="tel"]:focus{outline:none;border-color:var(--champagne);box-shadow:0 0 0 3px rgba(201,165,92,.22)}
.cta-form .checkline{display:flex;align-items:flex-start;gap:8px;font-size:13px;color:rgba(255,255,255,.68);line-height:1.6}
.cta-form .checkline input{margin-top:4px}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--field-900);color:rgba(255,255,255,.72);margin-top:88px;padding:64px 0 0}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:36px;padding-bottom:44px}
.footer-brand{display:inline-flex;align-items:center;gap:10px;font-family:var(--font-serif);font-size:19px;font-weight:700;color:#fff}
.footer-brand .brand-mark{background:#fff;color:var(--field-900)}
.footer-about{margin:16px 0 0;font-size:14px;line-height:1.9;color:rgba(255,255,255,.7);max-width:300px}
.footer-quote{margin:14px 0 0;font-size:13px;color:var(--champagne);letter-spacing:.02em}
.footer-title{font-size:13px;letter-spacing:.08em;color:#fff;font-weight:500;margin:0 0 16px}
.footer-links a{display:block;padding:6px 0;font-size:14px;color:rgba(255,255,255,.72)}
.footer-links a:hover{color:#fff}
.footer-links p{margin:0;padding:6px 0;font-size:14px;color:rgba(255,255,255,.72)}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.12);padding:20px 0;
  display:flex;flex-wrap:wrap;gap:12px;align-items:center;justify-content:space-between;
  font-size:13px;color:rgba(255,255,255,.6);
}

/* ---------- 响应式 ---------- */
@media (max-width:1279px){
  .nav-links{gap:22px;margin-left:26px}
}
@media (max-width:1023px){
  .header-inner{min-height:60px}
  .nav-links,.nav-login{display:none}
  .menu-toggle{display:grid}
  .article-layout,.article-layout.has-toc{grid-template-columns:minmax(0,1fr);gap:0}
  .toc{display:none}
  .card-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .cta-band{grid-template-columns:1fr;padding:36px;gap:28px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px}
  .section{padding:60px 0 0}
}
@media (max-width:767px){
  body{font-size:15px}
  .header-inner{min-height:56px}
  .container{padding:0 20px}
  .article-head h1{font-size:1.7rem}
  .article-body{font-size:16px;line-height:1.88}
  .article-body table{display:block;overflow-x:auto;white-space:nowrap}
  .article-cta{padding:20px}
  .cta-band{padding:28px 22px;border-radius:14px}
  .site-footer{margin-top:64px;padding-top:48px}
  .footer-grid{grid-template-columns:1fr;gap:26px;padding-bottom:32px}
  .footer-bottom{flex-direction:column;align-items:flex-start}
}
@media (max-width:520px){
  .container{padding:0 16px}
  .brand{font-size:18px}
  .card-grid{grid-template-columns:1fr}
  .article-head{padding:12px 0 22px}
  .section{padding:52px 0 0}
  .btn{padding:11px 22px;font-size:14px}
}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{transition:none!important;animation:none!important;scroll-behavior:auto!important}
}

/* roulang page: category2 */
/* ================= 设计变量 ================= */
:root{
  --field-900:#0F3D2E;
  --field-700:#175A45;
  --field-500:#2E7D63;
  --ember:#E4572E;
  --ember-dark:#C9451F;
  --champagne:#C9A55C;
  --sand-50:#F7F4ED;
  --sand-100:#EFEAE0;
  --ink-900:#141E1A;
  --ink-500:#5A6B63;
  --line:rgba(15,61,46,.12);
  --line-strong:rgba(15,61,46,.24);
  --white:#ffffff;
  --radius-card:14px;
  --radius-btn:8px;
  --radius-pill:999px;
  --shadow-card:0 1px 2px rgba(20,30,26,.05);
  --shadow-hover:0 14px 34px -20px rgba(15,61,46,.35);
  --ease:cubic-bezier(.2,.7,.3,1);
  --serif:"Noto Serif SC","Songti SC","Source Han Serif SC",Georgia,serif;
  --sans:"Noto Sans SC","PingFang SC","Microsoft YaHei",-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;
  --nav-h:68px;
  --container:1200px;
}

/* ================= 基础重置 ================= */
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:var(--sans);
  font-size:16.5px;
  line-height:1.9;
  letter-spacing:.01em;
  color:var(--ink-900);
  background:var(--sand-50);
  -webkit-font-smoothing:antialiased;
}
body.no-scroll{overflow:hidden;}
img{max-width:100%;display:block;height:auto;}
a{color:var(--field-900);text-decoration:none;transition:color .16s var(--ease);}
a:hover{color:var(--ember);}
button{font:inherit;border:0;background:none;cursor:pointer;color:inherit;}
input{font:inherit;color:inherit;}
h1,h2,h3,h4{margin:0;font-family:var(--serif);font-weight:700;line-height:1.25;letter-spacing:.015em;color:var(--ink-900);}
p{margin:0 0 1.1em;}
p:last-child{margin-bottom:0;}
ul,ol{margin:0;padding:0;list-style:none;}
table{border-collapse:collapse;width:100%;}
:focus-visible{outline:2px solid var(--field-500);outline-offset:2px;border-radius:4px;}

/* ================= 容器与区块 ================= */
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 24px;}
main{display:block;}
.section{padding:96px 0;}
.section--tight{padding:72px 0;}
.section--sand{background:var(--sand-100);}
.section--white{background:var(--white);}
.section-head{max-width:780px;margin-bottom:40px;}
.section-head--center{margin-left:auto;margin-right:auto;text-align:center;}
.eyebrow{
  display:inline-flex;align-items:center;gap:10px;
  font-size:13px;font-weight:700;letter-spacing:.14em;
  color:var(--field-500);text-transform:uppercase;
}
.eyebrow::before{content:"";width:24px;height:1px;background:var(--champagne);}
.section-title{font-size:clamp(1.7rem,2.6vw,2.4rem);margin-top:14px;}
.section-desc{margin-top:16px;color:var(--ink-500);font-size:16px;line-height:1.9;}

/* ================= 按钮 ================= */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:12px 24px;border-radius:var(--radius-btn);
  font-size:15px;font-weight:600;line-height:1;
  border:1px solid transparent;cursor:pointer;
  transition:background-color .16s var(--ease),color .16s var(--ease),border-color .16s var(--ease),transform .16s var(--ease),box-shadow .16s var(--ease);
}
.btn .arrow{transition:transform .16s var(--ease);}
.btn:hover .arrow{transform:translateX(4px);}
.btn:active{transform:translateY(1px);}
.btn-primary{background:var(--field-900);color:#fff;box-shadow:var(--shadow-card);}
.btn-primary:hover{background:var(--field-700);color:#fff;}
.btn-ember{background:var(--ember);color:#fff;}
.btn-ember:hover{background:var(--ember-dark);color:#fff;}
.btn-ghost{background:transparent;border-color:var(--field-900);color:var(--field-900);}
.btn-ghost:hover{background:rgba(15,61,46,.06);color:var(--field-900);}
.btn-light{background:rgba(255,255,255,.1);color:#fff;border-color:rgba(255,255,255,.4);}
.btn-light:hover{background:rgba(255,255,255,.2);color:#fff;}
.btn-sm{padding:9px 18px;font-size:14px;}
.btn-block{width:100%;}

/* ================= 徽章 / 标签 ================= */
.badge{
  display:inline-flex;align-items:center;gap:6px;
  padding:5px 12px;border-radius:var(--radius-pill);
  border:1px solid var(--champagne);
  font-size:13px;font-weight:600;color:var(--field-700);background:transparent;
}
.badge--solid{background:var(--field-900);border-color:var(--field-900);color:#fff;}
.tag{display:inline-flex;align-items:center;padding:6px 14px;border-radius:var(--radius-pill);background:var(--sand-100);color:var(--field-700);font-size:13.5px;font-weight:500;border:1px solid var(--line);}

/* ================= 导航 ================= */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(247,244,237,.94);
  backdrop-filter:saturate(140%) blur(10px);
  border-bottom:1px solid var(--line);
  transition:box-shadow .24s var(--ease);
}
.site-header.is-scrolled{box-shadow:0 10px 30px -24px rgba(15,61,46,.5);}
.nav-inner{display:flex;align-items:center;justify-content:space-between;gap:24px;height:var(--nav-h);}
.nav-left{display:flex;align-items:center;gap:40px;min-width:0;}
.nav-right{display:flex;align-items:center;gap:14px;}
.brand{display:inline-flex;align-items:center;gap:10px;font-family:var(--serif);font-weight:700;font-size:20px;color:var(--field-900);letter-spacing:.02em;}
.brand:hover{color:var(--field-700);}
.brand-mark{
  width:32px;height:32px;border-radius:9px;
  background:var(--field-900);color:#fff;
  display:inline-flex;align-items:center;justify-content:center;
  font-size:16px;font-weight:700;flex:0 0 32px;
}
.nav-links{display:flex;align-items:center;gap:30px;}
.nav-link{
  position:relative;padding:6px 0;font-size:15px;font-weight:500;color:var(--ink-500);
}
.nav-link::after{
  content:"";position:absolute;left:0;right:0;bottom:-2px;height:2px;
  background:var(--field-900);transform:scaleX(0);transform-origin:left;
  transition:transform .16s var(--ease);
}
.nav-link:hover{color:var(--field-900);}
.nav-link:hover::after{transform:scaleX(1);}
.nav-link.is-active{color:var(--field-900);font-weight:700;}
.nav-link.is-active::after{transform:scaleX(1);}
.nav-text-link{font-size:14px;color:var(--ink-500);padding:8px 4px;}
.nav-text-link:hover{color:var(--field-900);}
.icon-btn{
  width:40px;height:40px;border-radius:10px;border:1px solid var(--line);
  display:inline-flex;align-items:center;justify-content:center;
  color:var(--field-900);background:transparent;
  transition:border-color .16s var(--ease),background-color .16s var(--ease);
}
.icon-btn:hover{border-color:var(--field-500);background:rgba(15,61,46,.05);}
.icon-btn svg{width:18px;height:18px;}
.nav-burger{display:none;}

/* 搜索行 */
.search-bar{max-height:0;overflow:hidden;border-top:1px solid transparent;transition:max-height .24s var(--ease),border-color .24s var(--ease);}
.search-bar.is-open{max-height:96px;border-top-color:var(--line);}
.search-inner{padding:16px 0;}
.search-form{display:flex;gap:12px;}
.search-input{
  flex:1;height:48px;padding:0 16px;border-radius:var(--radius-btn);
  border:1px solid var(--line);background:var(--white);
  transition:border-color .16s var(--ease),box-shadow .16s var(--ease);
}
.search-input:focus{outline:none;border-color:var(--field-500);box-shadow:0 0 0 3px rgba(15,61,46,.12);}
.search-hint{font-size:13px;color:var(--ink-500);margin-top:10px;}

/* 移动抽屉 */
.nav-drawer{
  position:fixed;inset:0;z-index:90;background:var(--sand-50);
  transform:translateX(100%);transition:transform .3s var(--ease);
  display:flex;flex-direction:column;padding:18px 20px 28px;overflow-y:auto;
}
.nav-drawer.is-open{transform:translateX(0);}
.drawer-top{display:flex;align-items:center;justify-content:space-between;padding-bottom:16px;border-bottom:1px solid var(--line);}
.drawer-group{margin-top:26px;}
.drawer-label{font-size:13px;font-weight:700;letter-spacing:.08em;color:var(--ink-500);margin-bottom:8px;}
.drawer-link{
  display:flex;align-items:center;height:52px;font-size:16px;font-weight:500;
  color:var(--ink-900);border-bottom:1px solid var(--line);
}
.drawer-link.is-active{color:var(--field-900);font-weight:700;}
.drawer-cta{margin-top:26px;display:grid;gap:12px;}
.drawer-contact{margin-top:26px;font-size:14px;color:var(--ink-500);}
.drawer-contact span{display:block;margin-top:6px;color:var(--ink-900);}

/* ================= 矮首屏 ================= */
.page-hero{
  position:relative;
  min-height:300px;
  display:flex;align-items:center;
  padding:58px 0;
  color:#fff;
  background-image:linear-gradient(112deg,rgba(15,61,46,.94) 0%,rgba(15,61,46,.78) 46%,rgba(15,61,46,.52) 100%),url('/assets/images/backpic/back-2.webp');
  background-size:cover;
  background-position:center;
}
.page-hero::after{
  content:"";position:absolute;left:24px;bottom:0;width:88px;height:3px;background:var(--champagne);
}
.breadcrumb{display:flex;align-items:center;gap:10px;font-size:13px;color:rgba(255,255,255,.72);margin-bottom:20px;}
.breadcrumb a{color:rgba(255,255,255,.72);}
.breadcrumb a:hover{color:#fff;}
.breadcrumb .sep{color:rgba(255,255,255,.4);}
.breadcrumb .current{color:#fff;font-weight:500;}
.page-hero h1{color:#fff;font-size:clamp(2rem,3.6vw,2.9rem);max-width:18em;}
.page-hero .hero-sub{margin-top:18px;max-width:640px;font-size:17px;line-height:1.85;color:rgba(255,255,255,.86);}

/* ================= 时间轴 ================= */
.timeline-wrap{margin-top:8px;}
.timeline{position:relative;display:grid;grid-template-columns:repeat(5,1fr);gap:26px;padding-top:28px;}
.timeline::before{content:"";position:absolute;left:0;right:0;top:9px;height:1px;background:var(--line-strong);}
.tl-item{position:relative;}
.tl-dot{
  position:absolute;top:-28px;left:0;width:18px;height:18px;border-radius:50%;
  background:var(--sand-50);border:2px solid var(--field-500);
  transition:border-color .16s var(--ease),background-color .16s var(--ease);
}
.tl-item:hover .tl-dot{border-color:var(--ember);background:var(--white);}
.tl-step{font-family:var(--serif);font-size:15px;font-weight:700;color:var(--champagne);letter-spacing:.08em;}
.tl-item h3{font-size:17px;margin:8px 0 10px;}
.tl-item p{font-size:14.5px;color:var(--ink-500);line-height:1.8;}

/* ================= 图文交替 ================= */
.split{display:grid;grid-template-columns:1fr 1fr;gap:56px;align-items:center;}
.split + .split{margin-top:80px;}
.split-media img{width:100%;border-radius:var(--radius-card);box-shadow:var(--shadow-card);aspect-ratio:4/3;object-fit:cover;}
.split-body h2{font-size:clamp(1.5rem,2.2vw,2rem);}
.split-body .lead{margin-top:18px;color:var(--ink-500);}
.split-list{margin-top:22px;display:grid;gap:12px;}
.split-list li{display:flex;gap:12px;font-size:15.5px;color:var(--ink-900);line-height:1.8;}
.split-list li::before{
  content:"";flex:0 0 7px;width:7px;height:7px;margin-top:11px;border-radius:50%;
  background:var(--champagne);
}

/* ================= 特征矩阵 ================= */
.matrix{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;}
.m-cell{
  background:var(--white);border:1px solid var(--line);border-radius:var(--radius-card);
  padding:32px;box-shadow:var(--shadow-card);
  transition:transform .16s var(--ease),border-color .16s var(--ease),box-shadow .16s var(--ease);
}
.m-cell:hover{transform:translateY(-3px);border-color:var(--field-500);box-shadow:var(--shadow-hover);}
.m-cell:nth-child(1){grid-column:span 2;}
.m-cell:nth-child(4){grid-column:span 2;}
.m-cell h3{font-size:19px;margin-bottom:14px;}
.m-cell p{font-size:15px;color:var(--ink-500);line-height:1.85;}
.m-cell .badge{margin-bottom:16px;}
.mini-rows{margin-top:20px;display:grid;gap:0;}
.mini-rows li{
  display:flex;align-items:baseline;justify-content:space-between;gap:16px;
  padding:13px 0;border-top:1px solid var(--line);font-size:15px;
}
.mini-rows li:last-child{border-bottom:1px solid var(--line);}
.mini-rows .k{color:var(--ink-500);}
.mini-rows .v{font-weight:600;color:var(--field-900);}
.tag-row{display:flex;flex-wrap:wrap;gap:10px;margin-top:18px;}

/* ================= 要点清单 ================= */
.checklist{display:grid;grid-template-columns:repeat(2,1fr);gap:0 44px;}
.checklist li{display:flex;gap:18px;padding:22px 0;border-bottom:1px solid var(--line);}
.checklist .num{font-family:var(--serif);font-size:22px;font-weight:700;color:var(--champagne);line-height:1.4;flex:0 0 auto;}
.checklist h3{font-size:16.5px;margin-bottom:8px;}
.checklist p{font-size:14.5px;color:var(--ink-500);line-height:1.8;}

/* ================= FAQ ================= */
.faq-list{max-width:900px;}
.faq-item{
  background:var(--white);border:1px solid var(--line);border-radius:var(--radius-card);
  margin-bottom:14px;overflow:hidden;
  transition:border-color .16s var(--ease),box-shadow .16s var(--ease);
}
.faq-item[open]{border-color:var(--field-500);box-shadow:var(--shadow-card);}
.faq-q{
  display:flex;align-items:center;justify-content:space-between;gap:18px;
  min-height:56px;padding:16px 24px;cursor:pointer;
  font-size:16px;font-weight:600;color:var(--ink-900);list-style:none;
}
.faq-q::-webkit-details-marker{display:none;}
.faq-q:hover{color:var(--field-700);}
.faq-icon{
  position:relative;flex:0 0 28px;width:28px;height:28px;border-radius:50%;
  border:1px solid var(--line-strong);
  transition:transform .24s var(--ease),border-color .16s var(--ease);
}
.faq-icon::before,.faq-icon::after{
  content:"";position:absolute;left:50%;top:50%;background:var(--field-900);
  transform:translate(-50%,-50%);
}
.faq-icon::before{width:12px;height:1.5px;}
.faq-icon::after{width:1.5px;height:12px;transition:opacity .2s var(--ease);}
.faq-item[open] .faq-icon{border-color:var(--field-500);transform:rotate(180deg);}
.faq-item[open] .faq-icon::after{opacity:0;}
.faq-a{padding:0 24px 22px;max-width:760px;font-size:15.5px;line-height:1.85;color:var(--ink-500);}

/* ================= CTA ================= */
.cta-section{
  background:var(--field-900);color:#fff;padding:88px 0;
  position:relative;overflow:hidden;
}
.cta-section::before{
  content:"";position:absolute;right:-120px;top:-120px;width:420px;height:420px;border-radius:50%;
  background:radial-gradient(circle,rgba(201,165,92,.22),rgba(201,165,92,0) 70%);
}
.cta-grid{position:relative;display:grid;grid-template-columns:1.1fr .9fr;gap:64px;align-items:center;}
.cta-copy h2{color:#fff;font-size:clamp(1.6rem,2.5vw,2.2rem);}
.cta-copy p{margin-top:18px;color:rgba(255,255,255,.8);font-size:16px;line-height:1.9;}
.cta-points{margin-top:26px;display:grid;gap:12px;}
.cta-points li{display:flex;gap:12px;align-items:flex-start;color:rgba(255,255,255,.9);font-size:15px;}
.cta-points li::before{content:"";flex:0 0 8px;width:8px;height:8px;margin-top:10px;border-radius:50%;background:var(--champagne);}
.cta-form{
  background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.18);
  border-radius:var(--radius-card);padding:32px;
}
.cta-form .field{margin-bottom:18px;}
.cta-form label{display:block;font-size:13.5px;color:rgba(255,255,255,.78);margin-bottom:8px;}
.cta-form input[type="text"],
.cta-form input[type="tel"]{
  width:100%;height:52px;padding:0 16px;border-radius:var(--radius-btn);
  border:1px solid rgba(255,255,255,.24);background:rgba(255,255,255,.94);color:var(--ink-900);
  transition:border-color .16s var(--ease),box-shadow .16s var(--ease);
}
.cta-form input[type="text"]:focus,
.cta-form input[type="tel"]:focus{outline:none;border-color:var(--field-500);box-shadow:0 0 0 3px rgba(46,125,99,.28);}
.check-row{display:flex;align-items:flex-start;gap:10px;font-size:13.5px;color:rgba(255,255,255,.75);margin-top:14px;}
.check-row input{margin-top:4px;width:16px;height:16px;flex:0 0 16px;}
.form-note{margin-top:14px;font-size:13px;color:rgba(255,255,255,.6);}

/* ================= 页脚 ================= */
.site-footer{background:var(--ink-900);color:rgba(255,255,255,.72);}
.footer-grid{display:grid;grid-template-columns:1.7fr 1fr 1fr 1fr;gap:48px;padding:72px 0 48px;}
.footer-brand .brand{color:#fff;}
.footer-brand .brand:hover{color:var(--champagne);}
.footer-brand .brand-mark{background:var(--field-700);}
.footer-brand p{margin-top:18px;font-size:14px;line-height:1.85;max-width:30em;}
.footer-quote{
  display:inline-flex;align-items:center;gap:8px;margin-top:18px;
  padding:8px 14px;border-radius:var(--radius-pill);
  border:1px solid rgba(201,165,92,.5);color:var(--champagne);font-size:13px;
}
.footer-col h3{color:#fff;font-size:13px;letter-spacing:.08em;font-weight:700;margin-bottom:18px;font-family:var(--sans);}
.footer-col li{margin-bottom:12px;}
.footer-col a{color:rgba(255,255,255,.72);font-size:14px;}
.footer-col a:hover{color:var(--champagne);}
.footer-bottom{
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  padding:22px 0;border-top:1px solid rgba(255,255,255,.12);font-size:13px;color:rgba(255,255,255,.55);
}

/* ================= 入场动效 ================= */
.reveal{opacity:0;transform:translateY(8px);transition:opacity .42s var(--ease),transform .42s var(--ease);}
.reveal.is-visible{opacity:1;transform:none;}

/* ================= 响应式 ================= */
@media (min-width:1440px){
  :root{--container:1320px;}
}
@media (max-width:1279px){
  .split{gap:44px;}
  .cta-grid{gap:48px;}
}
@media (max-width:1023px){
  :root{--nav-h:60px;}
  .nav-links{display:none;}
  .nav-text-link{display:none;}
  .nav-burger{display:inline-flex;}
  .nav-left{gap:20px;}
  .section{padding:72px 0;}
  .section--tight{padding:56px 0;}
  .timeline{grid-template-columns:repeat(3,1fr);gap:30px 24px;}
  .timeline::before{display:none;}
  .tl-dot{position:static;display:block;margin-bottom:12px;}
  .split{grid-template-columns:1fr;gap:32px;}
  .split + .split{margin-top:60px;}
  .matrix{grid-template-columns:repeat(2,1fr);}
  .m-cell:nth-child(1),.m-cell:nth-child(4){grid-column:span 2;}
  .cta-grid{grid-template-columns:1fr;gap:36px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:40px;padding:56px 0 36px;}
  .checklist{grid-template-columns:1fr;}
}
@media (max-width:767px){
  :root{--nav-h:56px;}
  body{font-size:16px;}
  .container{padding:0 18px;}
  .section{padding:56px 0;}
  .section--tight{padding:48px 0;}
  .page-hero{min-height:260px;padding:44px 0;}
  .page-hero::after{left:18px;}
  .page-hero .hero-sub{font-size:15.5px;}
  .split-media{order:2;}
  .timeline{grid-template-columns:1fr;gap:26px;}
  .tl-item{padding-left:22px;border-left:1px solid var(--line-strong);}
  .tl-dot{margin-bottom:10px;margin-left:0;position:relative;top:0;left:-31px;margin-bottom:6px;}
  .matrix{grid-template-columns:1fr;}
  .m-cell:nth-child(1),.m-cell:nth-child(4){grid-column:span 1;}
  .m-cell{padding:26px;}
  .cta-section{padding:64px 0;}
  .cta-form{padding:24px;}
  .footer-grid{grid-template-columns:1fr;gap:34px;}
  .footer-bottom{flex-direction:column;align-items:flex-start;}
  .faq-q{padding:16px 18px;font-size:15.5px;}
  .faq-a{padding:0 18px 20px;}
}
@media (max-width:420px){
  .container{padding:0 14px;}
  .brand{font-size:18px;}
  .brand-mark{width:28px;height:28px;flex:0 0 28px;font-size:14px;}
  .btn{padding:11px 18px;font-size:14px;}
  .page-hero h1{font-size:1.7rem;}
  .cta-form{padding:20px;}
}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{transition:none !important;animation:none !important;}
  .reveal{opacity:1;transform:none;}
  html{scroll-behavior:auto;}
}