/* roulang page: index */
:root{
  --brand:#0F766A;
  --brand-deep:#0A4E46;
  --brand-soft:#D7EDE7;
  --accent:#E08D3C;
  --bg:#F6F4EE;
  --bg-2:#FFFDF9;
  --line:#E2DED4;
  --ink:#121A18;
  --ink-2:#4A5654;
  --light:#F2F0EA;
  --success:#2F8F5B;
  --warning:#B8792A;
  --radius-sm:6px;
  --radius-md:10px;
  --radius-lg:16px;
  --radius-xl:20px;
  --shadow-1:0 1px 2px rgba(18,26,24,.04),0 8px 24px -12px rgba(18,26,24,.16);
  --shadow-2:0 18px 48px -24px rgba(18,26,24,.30);
  --ease:cubic-bezier(.22,.61,.36,1);
  --container:1200px;
  --section-y:96px;
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  font-family:"PingFang SC","HarmonyOS Sans SC","Noto Sans SC","Microsoft YaHei",system-ui,sans-serif;
  background:var(--bg);
  color:var(--ink);
  font-size:16px;
  line-height:1.85;
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}
img{max-width:100%;display:block;height:auto}
a{color:inherit;text-decoration:none;transition:color .28s var(--ease)}
a:hover{color:var(--brand)}
button,input{font:inherit}
button{cursor:pointer}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4,p{margin-top:0}
h1,h2,h3{letter-spacing:-.01em}
[hidden]{display:none!important}
::selection{background:var(--brand-soft);color:var(--ink)}
a:focus-visible,button:focus-visible{
  outline:2px solid var(--brand);
  outline-offset:2px;
}
.container{
  width:100%;
  max-width:var(--container);
  margin:0 auto;
  padding-left:20px;
  padding-right:20px;
}
@media(min-width:960px){
  .container{padding-left:32px;padding-right:32px}
}
.section{padding:var(--section-y) 0}
@media(max-width:1023px){
  .section{padding:72px 0}
}
@media(max-width:599px){
  .section{padding:52px 0}
}
.eyebrow{
  font-size:12px;
  font-weight:700;
  letter-spacing:.16em;
  text-transform:uppercase;
  color:var(--brand);
  margin-bottom:10px;
}
.section-head{
  display:flex;
  align-items:flex-end;
  justify-content:space-between;
  gap:32px;
  margin-bottom:32px;
}
.section-head h2{
  font-size:clamp(1.55rem,2.6vw,2.3rem);
  line-height:1.28;
  font-weight:700;
  margin-bottom:0;
}
.section-desc{
  max-width:460px;
  color:var(--ink-2);
  font-size:15px;
  line-height:1.8;
  margin:0;
}
@media(max-width:767px){
  .section-head{flex-direction:column;align-items:flex-start;gap:12px}
}
.site-header{
  position:sticky;
  top:0;
  z-index:70;
  background:rgba(246,244,238,.88);
  -webkit-backdrop-filter:blur(10px);
  backdrop-filter:blur(10px);
  border-bottom:1px solid transparent;
  transition:box-shadow .3s var(--ease),border-color .3s var(--ease);
}
.site-header.is-scrolled{
  border-bottom-color:var(--line);
  box-shadow:var(--shadow-1);
}
.nav-wrap{
  display:flex;
  align-items:center;
  min-height:72px;
  gap:24px;
}
.brand-logo{
  display:inline-flex;
  align-items:center;
  gap:10px;
  min-width:220px;
  color:var(--ink);
}
.brand-logo:hover{color:var(--ink)}
.brand-mark{
  width:34px;
  height:34px;
  flex:0 0 auto;
  color:var(--brand);
}
.brand-mark svg{width:100%;height:100%}
.brand-text{display:flex;flex-direction:column;line-height:1.1}
.brand-main{font-size:17px;font-weight:800;letter-spacing:.01em}
.brand-sub{
  font-size:11px;
  font-weight:600;
  letter-spacing:.18em;
  color:var(--ink-2);
  margin-top:4px;
}
.desktop-nav{
  display:flex;
  align-items:center;
  gap:28px;
  margin-left:auto;
}
.nav-link{
  position:relative;
  font-size:15px;
  font-weight:500;
  color:var(--ink-2);
  padding:8px 0;
}
.nav-link:hover{color:var(--ink)}
.nav-link::after{
  content:"";
  position:absolute;
  left:50%;
  bottom:0;
  width:0;
  height:2px;
  background:var(--brand);
  transform:translateX(-50%);
  transition:width .28s var(--ease);
}
.nav-link:hover::after{width:22px}
.nav-link.is-active{color:var(--brand);font-weight:700}
.nav-link.is-active::after{width:22px}
.nav-actions{display:flex;align-items:center;gap:12px;margin-left:8px}
.mobile-toggle{
  display:none;
  width:42px;
  height:42px;
  border:1px solid var(--line);
  background:var(--bg-2);
  border-radius:10px;
  padding:10px 9px;
  flex-direction:column;
  justify-content:space-between;
}
.mobile-toggle span{
  display:block;
  height:2px;
  background:var(--ink);
  border-radius:2px;
  transition:transform .25s var(--ease),opacity .25s var(--ease);
}
@media(max-width:959px){
  .desktop-nav{display:none}
  .mobile-toggle{display:flex}
  .brand-logo{min-width:0}
  .nav-actions .btn-sm{display:none}
}
.drawer-overlay{
  position:fixed;
  inset:0;
  z-index:90;
  background:rgba(11,23,21,.55);
}
.mobile-drawer{
  position:fixed;
  top:0;
  right:0;
  bottom:0;
  width:86vw;
  max-width:380px;
  z-index:100;
  background:var(--bg);
  transform:translateX(100%);
  transition:transform .3s var(--ease);
  display:flex;
  flex-direction:column;
  box-shadow:var(--shadow-2);
  padding:20px;
}
.mobile-drawer.is-open{transform:translateX(0)}
.drawer-head{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:12px;
  padding-bottom:16px;
  border-bottom:1px solid var(--line);
}
.drawer-brand{font-size:17px;font-weight:800}
.drawer-close{
  width:40px;
  height:40px;
  border:1px solid var(--line);
  border-radius:10px;
  background:var(--bg-2);
  position:relative;
}
.drawer-close::before,.drawer-close::after{
  content:"";
  position:absolute;
  left:12px;
  right:12px;
  top:50%;
  height:2px;
  background:var(--ink);
}
.drawer-close::before{transform:rotate(45deg)}
.drawer-close::after{transform:rotate(-45deg)}
.drawer-nav{
  padding:12px 0;
  overflow-y:auto;
  flex:1;
}
.drawer-nav a{
  display:flex;
  align-items:center;
  min-height:60px;
  font-size:18px;
  font-weight:600;
  border-bottom:1px solid var(--line);
  color:var(--ink);
}
.drawer-nav a:hover{color:var(--brand)}
.drawer-foot{
  padding-top:16px;
  border-top:1px solid var(--line);
}
.drawer-foot p{
  font-size:12px;
  color:var(--ink-2);
  margin:12px 0 0;
}
body.drawer-open{overflow:hidden}
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  min-height:46px;
  padding:0 26px;
  border-radius:10px;
  border:1px solid transparent;
  font-size:15px;
  font-weight:700;
  line-height:1;
  text-align:center;
  transition:background .28s var(--ease),color .28s var(--ease),border-color .28s var(--ease),transform .28s var(--ease),box-shadow .28s var(--ease);
}
.btn svg{width:16px;height:16px;transition:transform .28s var(--ease)}
.btn:hover svg{transform:translateX(4px)}
.btn-primary{
  background:var(--brand);
  color:var(--light);
  box-shadow:0 10px 22px -14px rgba(15,118,106,.55);
}
.btn-primary:hover{
  background:var(--brand-deep);
  color:var(--light);
  transform:translateY(-1px);
}
.btn-ghost{
  background:transparent;
  color:var(--brand);
  border-color:var(--brand);
}
.btn-ghost:hover{background:var(--brand-soft);color:var(--brand-deep)}
.btn-secondary{
  background:transparent;
  color:var(--brand);
  border-color:var(--brand);
}
.btn-secondary:hover{background:var(--brand-soft);color:var(--brand-deep)}
.btn-accent{
  background:var(--accent);
  color:#1B1207;
  box-shadow:0 10px 24px -14px rgba(224,141,60,.8);
}
.btn-accent:hover{
  background:#C97A2E;
  color:#1B1207;
  transform:translateY(-1px);
}
.btn-sm{min-height:40px;padding:0 20px;font-size:14px}
.btn-block{width:100%}
.text-link{
  position:relative;
  display:inline-flex;
  align-items:center;
  gap:6px;
  font-size:14px;
  font-weight:700;
  color:var(--ink);
  padding-bottom:2px;
}
.text-link::after{
  content:"";
  position:absolute;
  left:0;
  bottom:0;
  width:100%;
  height:2px;
  background:var(--brand-soft);
  transform:scaleX(0);
  transform-origin:left;
  transition:transform .28s var(--ease);
}
.text-link:hover{color:var(--brand)}
.text-link:hover::after{transform:scaleX(1)}
.badge,.corner-badge{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  background:var(--brand-soft);
  color:var(--brand-deep);
  font-size:12px;
  font-weight:700;
  letter-spacing:.02em;
  border-radius:6px;
  padding:4px 10px;
  line-height:1.4;
  white-space:nowrap;
}
.hero{
  position:relative;
  background-image:linear-gradient(180deg,rgba(11,23,21,.32),rgba(11,23,21,.78)),url('/assets/images/backpic/back-1.png');
  background-size:cover;
  background-position:center;
  color:var(--light);
  padding:96px 0;
  overflow:hidden;
}
.hero::after{
  content:"";
  position:absolute;
  inset:auto 0 0;
  height:120px;
  background:linear-gradient(180deg,transparent,rgba(11,23,21,.32));
  pointer-events:none;
}
.hero .container{position:relative;z-index:1}
.hero-grid{row-gap:40px}
.hero .eyebrow{color:var(--brand-soft)}
.hero h1{
  font-size:clamp(2.15rem,5vw,3.8rem);
  font-weight:800;
  line-height:1.14;
  letter-spacing:-.01em;
  max-width:780px;
  margin-bottom:20px;
  color:var(--light);
}
.hero-sub{
  font-size:clamp(1rem,1.8vw,1.25rem);
  line-height:1.7;
  color:rgba(242,240,234,.84);
  max-width:600px;
  margin-bottom:28px;
}
.hero-actions{
  display:flex;
  flex-wrap:wrap;
  gap:14px;
  margin-bottom:18px;
}
.hero-actions .btn-ghost{
  color:var(--light);
  border-color:rgba(242,240,234,.52);
}
.hero-actions .btn-ghost:hover{
  background:rgba(242,240,234,.12);
  color:var(--light);
  border-color:var(--light);
}
.hero .btn:focus-visible{outline-color:var(--brand-soft)}
.trust-line{
  font-size:13px;
  letter-spacing:.02em;
  color:rgba(242,240,234,.64);
  margin:0;
}
.hero-visual{position:relative;max-width:480px;margin-left:auto}
.hero-visual img{
  width:100%;
  aspect-ratio:16/10;
  object-fit:cover;
  border-radius:20px;
  border:1px solid rgba(255,255,255,.18);
  box-shadow:var(--shadow-2);
}
.hero-note{
  position:absolute;
  left:-18px;
  bottom:-22px;
  background:rgba(255,253,249,.96);
  color:var(--ink);
  border:1px solid rgba(255,255,255,.5);
  border-radius:14px;
  padding:14px 18px;
  box-shadow:var(--shadow-1);
  display:flex;
  flex-direction:column;
  gap:2px;
  min-width:160px;
}
.hero-note .note-label{
  font-size:11px;
  font-weight:700;
  letter-spacing:.14em;
  color:var(--brand);
  text-transform:uppercase;
}
.hero-note strong{font-size:20px;font-weight:800;line-height:1.2}
.hero-note span:last-child{font-size:12px;color:var(--ink-2)}
@media(max-width:959px){
  .hero{padding:72px 0}
  .hero-visual{margin:0 auto}
  .hero-note{left:12px;bottom:-16px}
}
@media(max-width:599px){
  .hero{padding:56px 0}
  .hero-actions{flex-direction:column;align-items:stretch}
  .hero-actions .btn{width:100%}
  .hero-note{
    position:static;
    margin-top:14px;
    display:inline-flex;
    min-width:0;
    align-self:flex-start;
  }
}
.stats-strip{
  padding:34px 0;
  border-bottom:1px solid var(--line);
  background:var(--bg);
}
.stats-grid{
  display:grid;
  grid-template-columns:repeat(4,1fr);
  gap:0;
}
.stat{padding:4px 24px;border-left:1px solid var(--line)}
.stat:first-child{border-left:0;padding-left:0}
.stat strong{
  display:block;
  font-size:clamp(2rem,3vw,2.75rem);
  line-height:1;
  font-weight:800;
  color:var(--brand);
  letter-spacing:-.02em;
}
.stat span{
  display:block;
  font-size:12px;
  color:var(--ink-2);
  letter-spacing:.04em;
  margin-top:10px;
}
@media(max-width:767px){
  .stats-grid{grid-template-columns:repeat(2,1fr);row-gap:24px}
  .stat{padding:0 16px}
  .stat:nth-child(odd){border-left:0;padding-left:0}
}
.compare-table-wrap{
  background:var(--bg-2);
  border:1px solid var(--line);
  border-radius:16px;
  box-shadow:var(--shadow-1);
  overflow:auto;
}
.compare-table{
  width:100%;
  border-collapse:separate;
  border-spacing:0;
  table-layout:fixed;
  min-width:860px;
}
.compare-table th,.compare-table td{
  padding:16px 18px;
  text-align:left;
  border-bottom:1px solid var(--line);
  font-size:14px;
  vertical-align:middle;
}
.compare-table thead th{
  background:var(--brand-deep);
  color:var(--light);
  font-size:13px;
  font-weight:700;
  letter-spacing:.02em;
  position:sticky;
  top:0;
  z-index:2;
}
.compare-table thead th:first-child{
  left:0;
  z-index:3;
  width:260px;
  background:var(--brand-deep);
}
.compare-table tbody th{
  font-weight:700;
  color:var(--ink);
  background:var(--bg-2);
  position:sticky;
  left:0;
  z-index:1;
  width:260px;
}
.compare-table tbody tr:hover td,
.compare-table tbody tr:hover th{background:rgba(15,118,106,.05)}
.compare-table .recommend{background:var(--brand-soft)}
.compare-table thead .recommend{
  background:#0C5C52;
  position:relative;
  color:var(--light);
  padding-top:32px;
}
.rec-badge{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  background:var(--brand);
  color:var(--light);
  font-size:11px;
  font-weight:700;
  border-radius:6px;
  padding:3px 8px;
  margin-left:6px;
  vertical-align:middle;
}
.compare-table thead .rec-badge{
  position:absolute;
  top:6px;
  left:50%;
  transform:translateX(-50%);
  margin:0;
}
.check-mark{
  display:inline-block;
  width:8px;
  height:14px;
  border-right:2px solid var(--brand);
  border-bottom:2px solid var(--brand);
  transform:rotate(45deg);
  margin-right:6px;
  vertical-align:middle;
}
.dash{color:var(--ink-2)}
.table-note{
  font-size:12px;
  color:var(--ink-2);
  margin:14px 0 0;
  letter-spacing:.02em;
}
.compare-mobile{display:none}
@media(max-width:767px){
  .compare-table-wrap{display:none}
  .compare-mobile{display:grid;gap:14px}
  .plan-card{
    background:var(--bg-2);
    border:1px solid var(--line);
    border-radius:16px;
    padding:18px;
    box-shadow:var(--shadow-1);
  }
  .plan-card.is-recommended{
    border-color:rgba(15,118,106,.45);
    background:linear-gradient(180deg,var(--brand-soft),var(--bg-2) 26%);
  }
  .plan-head{
    display:flex;
    align-items:center;
    justify-content:space-between;
    gap:8px;
    padding-bottom:12px;
    margin-bottom:8px;
    border-bottom:1px solid var(--line);
  }
  .plan-name{font-size:16px;font-weight:800}
  .plan-note{font-size:12px;color:var(--ink-2)}
  .plan-row{
    display:flex;
    align-items:flex-start;
    justify-content:space-between;
    gap:20px;
    padding:9px 0;
    font-size:13px;
    border-bottom:1px dashed rgba(226,222,212,.8);
  }
  .plan-row:last-child{border-bottom:0}
  .plan-row span{color:var(--ink-2)}
  .plan-row strong{font-weight:700;text-align:right}
}
.tier-grid{
  display:grid;
  grid-template-columns:repeat(3,1fr);
  gap:24px;
}
.tier-card{
  position:relative;
  background:var(--bg-2);
  border:1px solid var(--line);
  border-radius:20px;
  padding:32px;
  box-shadow:var(--shadow-1);
  transition:transform .3s var(--ease),box-shadow .3s var(--ease),border-color .3s var(--ease);
}
.tier-card:hover{
  transform:translateY(-4px);
  box-shadow:var(--shadow-2);
  border-color:rgba(15,118,106,.35);
}
.tier-card:not(:last-child)::after{
  content:"";
  position:absolute;
  top:50%;
  right:-25px;
  width:25px;
  border-top:2px dashed var(--line);
}
.tier-num{
  display:block;
  font-size:4rem;
  line-height:1;
  font-weight:800;
  color:var(--line);
  letter-spacing:-.04em;
  transition:color .3s var(--ease);
  margin-bottom:18px;
}
.tier-card:hover .tier-num{color:var(--brand-soft)}
.tier-card h3{font-size:1.25rem;font-weight:800;margin:10px 0 14px}
.tier-points li{
  position:relative;
  padding-left:18px;
  font-size:14px;
  color:var(--ink-2);
  line-height:1.8;
  margin-bottom:6px;
}
.tier-points li::before{
  content:"";
  position:absolute;
  left:0;
  top:.72em;
  width:8px;
  height:8px;
  background:var(--brand);
}
@media(max-width:959px){
  .tier-grid{grid-template-columns:1fr}
  .tier-card:not(:last-child)::after{
    top:auto;
    bottom:-25px;
    left:32px;
    right:auto;
    width:0;
    height:25px;
    border-top:0;
    border-left:2px dashed var(--line);
  }
}
.exclusive-grid{
  display:grid;
  grid-template-columns:repeat(3,1fr);
  gap:24px;
}
.content-card{
  background:var(--bg-2);
  border:1px solid var(--line);
  border-radius:16px;
  overflow:hidden;
  box-shadow:var(--shadow-1);
  transition:transform .3s var(--ease),box-shadow .3s var(--ease),border-color .3s var(--ease);
}
.content-card:hover{
  transform:translateY(-4px);
  box-shadow:var(--shadow-2);
  border-color:rgba(15,118,106,.35);
}
.content-thumb{
  position:relative;
  aspect-ratio:16/10;
  overflow:hidden;
  border-bottom:1px solid var(--line);
  background:var(--brand-soft);
}
.content-thumb img{
  width:100%;
  height:100%;
  object-fit:cover;
  transition:transform .32s var(--ease);
}
.content-card:hover .content-thumb img{transform:scale(1.04)}
.corner-badge{
  position:absolute;
  top:12px;
  left:12px;
  background:var(--brand);
  color:var(--light);
}
.content-body{padding:20px}
.content-body h3{
  font-size:1.05rem;
  line-height:1.5;
  font-weight:700;
  margin-bottom:16px;
  display:-webkit-box;
  -webkit-line-clamp:2;
  -webkit-box-orient:vertical;
  overflow:hidden;
  min-height:3.15em;
}
.content-foot{
  display:flex;
  align-items:center;
  gap:8px;
  color:var(--brand);
  font-size:13px;
  font-weight:700;
}
.lock-icon{width:16px;height:16px;display:inline-flex}
.lock-icon svg{width:100%;height:100%}
@media(max-width:1023px){
  .exclusive-grid{grid-template-columns:repeat(2,1fr)}
}
@media(max-width:599px){
  .exclusive-grid{grid-template-columns:1fr}
}
.section-action{display:flex;justify-content:center;margin-top:32px}
.latest-grid{row-gap:24px}
.latest-grid .cell{display:flex}
.info-card{
  width:100%;
  height:100%;
  background:var(--bg-2);
  border:1px solid var(--line);
  border-radius:16px;
  overflow:hidden;
  box-shadow:var(--shadow-1);
  transition:transform .3s var(--ease),box-shadow .3s var(--ease),border-color .3s var(--ease);
  display:flex;
  flex-direction:column;
}
.info-card:hover{
  transform:translateY(-4px);
  box-shadow:var(--shadow-2);
  border-color:rgba(15,118,106,.35);
}
.info-thumb{
  aspect-ratio:16/10;
  background:var(--brand-soft);
  border-bottom:1px solid var(--line);
  display:flex;
  align-items:center;
  justify-content:center;
  overflow:hidden;
}
.info-thumb svg{width:70px;height:70px;color:var(--brand);opacity:.5}
.info-body{
  padding:20px;
  display:flex;
  flex-direction:column;
  flex:1;
}
.info-body .badge{align-self:flex-start;margin-bottom:12px}
.info-body h3{
  font-size:1.05rem;
  line-height:1.55;
  font-weight:700;
  margin-bottom:10px;
  display:-webkit-box;
  -webkit-line-clamp:2;
  -webkit-box-orient:vertical;
  overflow:hidden;
}
.info-body h3 a:hover{color:var(--brand)}
.info-body p{
  font-size:14px;
  line-height:1.8;
  color:var(--ink-2);
  display:-webkit-box;
  -webkit-line-clamp:3;
  -webkit-box-orient:vertical;
  overflow:hidden;
  margin-bottom:16px;
}
.info-meta{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:12px;
  margin-top:auto;
  padding-top:14px;
  border-top:1px solid var(--line);
  font-size:12px;
  color:var(--ink-2);
}
.info-meta time{letter-spacing:.02em}
.empty-state{
  min-height:180px;
  display:flex;
  flex-direction:column;
  align-items:center;
  justify-content:center;
  gap:10px;
  background:var(--bg-2);
  border:1px dashed var(--line);
  border-radius:16px;
  color:var(--ink-2);
  text-align:center;
  padding:24px;
}
.empty-state svg{width:32px;height:32px;color:var(--brand)}
.empty-state p{font-size:13px;margin:0}
.pagination{
  display:flex;
  justify-content:center;
  align-items:center;
  gap:8px;
  margin-top:32px;
}
.page-btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  min-width:40px;
  height:40px;
  padding:0 12px;
  border:1px solid var(--line);
  border-radius:8px;
  background:var(--bg-2);
  font-size:13px;
  color:var(--ink-2);
}
.page-btn.is-current{
  background:var(--brand);
  border-color:var(--brand);
  color:var(--light);
  font-weight:700;
}
.page-btn.is-disabled{opacity:.45;pointer-events:none}
.faq-layout{
  display:grid;
  grid-template-columns:minmax(0,4fr) minmax(0,8fr);
  gap:48px;
  align-items:start;
}
.faq-intro h2{margin-bottom:16px}
.faq-intro p{
  color:var(--ink-2);
  font-size:15px;
  line-height:1.9;
  margin-bottom:0;
  max-width:360px;
}
.faq-panel .accordion{background:transparent;border:0;margin:0}
.faq-panel .accordion-item{
  background:var(--bg-2);
  border:1px solid var(--line);
  border-radius:12px;
  margin-bottom:12px;
  overflow:hidden;
  box-shadow:var(--shadow-1);
}
.faq-panel .accordion-title{
  display:flex;
  align-items:center;
  gap:14px;
  padding:18px 56px 18px 20px;
  border:0;
  color:var(--ink);
  font-size:16px;
  font-weight:600;
  line-height:1.55;
  position:relative;
  background:transparent;
}
.faq-panel .accordion-title:hover{background:rgba(15,118,106,.04);color:var(--ink)}
.faq-panel .accordion-title::before{content:none}
.faq-panel .accordion-title::after{
  content:"+";
  position:absolute;
  right:20px;
  top:50%;
  transform:translateY(-50%);
  font-size:22px;
  font-weight:400;
  line-height:1;
  color:var(--brand);
  transition:transform .3s var(--ease);
}
.faq-panel .accordion-item.is-active .accordion-title::after{
  transform:translateY(-50%) rotate(45deg);
}
.faq-index{
  font-size:12px;
  font-weight:800;
  letter-spacing:.04em;
  color:var(--brand);
  flex:0 0 auto;
}
.faq-panel .accordion-content{
  padding:0 20px 18px 54px;
  border:0;
  background:transparent;
  color:var(--ink-2);
  font-size:15px;
  line-height:1.9;
}
.faq-panel .accordion-content p{margin:0}
.faq-panel .accordion-item.is-active > .accordion-content{display:block}
.faq-panel .accordion-content[aria-hidden="true"]{display:none}
@media(max-width:959px){
  .faq-layout{grid-template-columns:1fr;gap:28px}
}
.cta-band{
  position:relative;
  padding:88px 0;
  background:linear-gradient(135deg,var(--brand-deep),#0B1715);
  color:var(--light);
  overflow:hidden;
}
.cta-band::before{
  content:"";
  position:absolute;
  inset:0;
  background:url('/assets/images/backpic/back-2.webp') center/cover;
  opacity:.14;
  pointer-events:none;
}
.cta-band .container{position:relative;z-index:1}
.cta-band h2{
  font-size:clamp(1.7rem,3vw,2.4rem);
  line-height:1.3;
  margin-bottom:18px;
  color:var(--light);
}
.cta-band .eyebrow{color:var(--brand-soft)}
.cta-list li{
  position:relative;
  padding-left:20px;
  font-size:15px;
  color:rgba(242,240,234,.8);
  margin-bottom:8px;
}
.cta-list li::before{
  content:"";
  position:absolute;
  left:0;
  top:.74em;
  width:8px;
  height:8px;
  background:var(--accent);
}
.member-form{
  background:rgba(255,253,249,.08);
  border:1px solid rgba(255,255,255,.16);
  border-radius:18px;
  padding:24px;
}
.member-form label{
  display:block;
  font-size:14px;
  font-weight:600;
  margin-bottom:8px;
  color:var(--light);
}
.member-form input{
  width:100%;
  height:46px;
  border:1px solid rgba(255,255,255,.24);
  border-radius:10px;
  background:rgba(255,253,249,.96);
  color:var(--ink);
  padding:0 14px;
  font-size:15px;
  margin-bottom:14px;
  outline:none;
  transition:border-color .25s var(--ease),box-shadow .25s var(--ease);
}
.member-form input:focus{
  border-color:var(--brand);
  box-shadow:0 0 0 3px rgba(15,118,106,.14);
}
.member-form input:focus-visible{outline:none}
.member-form .btn{width:100%}
.form-note{
  font-size:12px;
  color:rgba(242,240,234,.66);
  margin:12px 0 0;
  line-height:1.7;
}
.form-feedback{min-height:20px;font-size:13px;margin-top:10px}
.form-feedback.is-error{color:#F0B27A}
.form-feedback.is-success{color:#9CD9B4}
.cta-band .btn:focus-visible{outline-color:var(--brand-soft)}
.site-footer{
  background:#0B1715;
  color:var(--light);
  padding:64px 0 0;
}
.footer-grid{
  display:grid;
  grid-template-columns:1.4fr 1fr 1fr 1.2fr;
  gap:32px;
}
.footer-brand .brand-logo{color:var(--light);margin-bottom:16px}
.footer-brand .brand-main{color:var(--light)}
.footer-brand .brand-sub{color:rgba(242,240,234,.58)}
.footer-brand p{
  font-size:14px;
  line-height:1.9;
  color:rgba(242,240,234,.7);
  max-width:360px;
  margin-bottom:16px;
}
.footer-badges{display:flex;flex-wrap:wrap;gap:8px}
.footer-badges span{
  background:rgba(255,255,255,.1);
  color:rgba(242,240,234,.9);
  font-size:12px;
  border-radius:6px;
  padding:4px 10px;
}
.footer-col h3{
  font-size:14px;
  font-weight:700;
  margin-bottom:16px;
  color:var(--light);
}
.footer-col a,.footer-col p{
  display:block;
  font-size:14px;
  color:rgba(242,240,234,.72);
  line-height:1.9;
  margin:0 0 8px;
  transition:color .25s var(--ease),transform .25s var(--ease);
}
.footer-col a:hover{color:var(--brand-soft);transform:translateX(2px)}
.footer-bottom{
  margin-top:48px;
  padding:18px 0;
  border-top:1px solid rgba(255,255,255,.12);
  display:flex;
  justify-content:space-between;
  gap:16px;
  font-size:12px;
  color:rgba(242,240,234,.55);
  letter-spacing:.02em;
}
@media(max-width:959px){
  .footer-grid{grid-template-columns:1fr 1fr}
  .footer-brand{grid-column:1/-1}
}
@media(max-width:599px){
  .site-footer{padding-top:48px}
  .footer-grid{grid-template-columns:1fr}
  .footer-bottom{flex-direction:column;align-items:flex-start}
}
.reveal{
  opacity:0;
  transform:translateY(12px);
  transition:opacity .32s var(--ease),transform .32s var(--ease);
}
.reveal.is-visible{opacity:1;transform:translateY(0)}
@media(prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  *,*::before,*::after{
    animation-duration:.001ms!important;
    transition-duration:.001ms!important;
  }
  .reveal{opacity:1;transform:none}
}

.reveal{opacity:1;transform:none}

/* roulang page: article */
:root{
  --brand:#0F766A;
  --brand-deep:#0A4E46;
  --brand-soft:#D7EDE7;
  --accent:#E08D3C;
  --bg:#F6F4EE;
  --bg-2:#FFFDF9;
  --line:#E2DED4;
  --ink:#121A18;
  --ink-2:#4A5654;
  --inverse:#F2F0EA;
  --dark:#0B1715;
  --r-btn:10px;
  --r-card:16px;
  --r-lg:20px;
  --sh-1:0 1px 2px rgba(18,26,24,.04), 0 8px 24px -12px rgba(18,26,24,.16);
  --sh-2:0 18px 48px -24px rgba(18,26,24,.30);
  --ease:cubic-bezier(.22,.61,.36,1);
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:"PingFang SC","HarmonyOS Sans SC","Noto Sans SC","Microsoft YaHei",system-ui,-apple-system,sans-serif;
  font-size:16px;
  line-height:1.85;
  color:var(--ink);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border:0}
a{color:var(--brand);text-decoration:none;transition:color .24s var(--ease)}
a:hover{color:#0C645A}
p{margin:0 0 1em}
h1,h2,h3,h4{margin:0;font-family:inherit;color:var(--ink)}
ul,ol{margin:0;padding:0}
button{font-family:inherit}
input,textarea,select{font-family:inherit;font-size:15px}
a:focus-visible,button:focus-visible,.btn:focus-visible,.nav-link:focus-visible{outline:2px solid var(--brand);outline-offset:2px;border-radius:4px}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 20px}
@media (min-width:960px){.container{padding:0 32px}}
.section{padding:52px 0}
@media (min-width:600px){.section{padding:72px 0}}
@media (min-width:960px){.section{padding:96px 0}}

/* ===== 通用徽章 / 按钮 ===== */
.badge{
  display:inline-block;
  background:var(--brand-soft);
  color:var(--brand);
  font-size:12px;
  font-weight:700;
  letter-spacing:.04em;
  border-radius:6px;
  padding:4px 10px;
}
.badge-inverse{background:rgba(255,255,255,.14);color:var(--inverse)}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:46px;padding:0 26px;
  font-size:15px;font-weight:700;line-height:1;letter-spacing:.01em;
  border:1px solid transparent;border-radius:var(--r-btn);
  cursor:pointer;text-align:center;
  transition:background-color .24s var(--ease),color .24s var(--ease),border-color .24s var(--ease),box-shadow .24s var(--ease),transform .24s var(--ease);
}
.btn .arrow{transition:transform .24s var(--ease);display:inline-block}
.btn:hover .arrow{transform:translateX(4px)}
.btn-primary{background:var(--brand);color:#F6F4EE;box-shadow:0 1px 2px rgba(18,26,24,.06)}
.btn-primary:hover{background:#0C645A;color:#F6F4EE;box-shadow:var(--sh-1);transform:translateY(-1px)}
.btn-ghost{background:transparent;border-color:var(--brand);color:var(--brand)}
.btn-ghost:hover{background:var(--brand-soft);color:var(--brand-deep)}
.btn-light{background:rgba(255,255,255,.12);border-color:rgba(255,255,255,.32);color:var(--inverse)}
.btn-light:hover{background:rgba(255,255,255,.2);color:#fff}
.btn-sm{height:40px;padding:0 20px;font-size:14px}
.btn-block{width:100%}
.btn:active{transform:translateY(0)}
.link-more{
  display:inline-flex;align-items:center;gap:6px;
  font-size:14px;font-weight:700;color:var(--brand);
  border-bottom:2px solid transparent;transition:border-color .28s var(--ease),color .24s var(--ease);
}
.link-more:hover{border-bottom-color:var(--brand);color:var(--brand-deep)}
.link-more:hover .arrow{transform:translateX(4px)}

/* ===== 顶部导航 ===== */
.site-header{
  position:sticky;top:0;z-index:80;
  background:rgba(246,244,238,.88);
  -webkit-backdrop-filter:blur(10px);
  backdrop-filter:blur(10px);
  border-bottom:1px solid transparent;
  transition:border-color .28s var(--ease),box-shadow .28s var(--ease);
}
.site-header.is-scrolled{border-bottom-color:var(--line);box-shadow:var(--sh-1)}
.nav-wrap{display:flex;align-items:center;justify-content:space-between;gap:24px;height:72px}
.brand-logo{display:inline-flex;align-items:center;gap:10px;color:var(--ink)}
.brand-logo:hover{color:var(--ink)}
.brand-mark{display:inline-flex;width:30px;height:30px;color:var(--brand);flex:0 0 auto}
.brand-mark svg{width:30px;height:30px;display:block}
.brand-text{display:flex;flex-direction:column;line-height:1.22}
.brand-main{font-size:17px;font-weight:800;letter-spacing:-.01em;color:var(--ink)}
.brand-sub{font-size:11px;letter-spacing:.18em;color:var(--ink-2)}
.desktop-nav{display:flex;align-items:center;gap:26px}
.nav-link{position:relative;font-size:15px;font-weight:500;color:var(--ink-2);padding:6px 0;transition:color .22s var(--ease)}
.nav-link::after{
  content:"";position:absolute;left:50%;bottom:-2px;width:0;height:2px;
  background:var(--brand);transform:translateX(-50%);
  transition:width .28s var(--ease);
}
.nav-link:hover{color:var(--ink)}
.nav-link:hover::after{width:22px}
.nav-link.is-active{color:var(--brand);font-weight:700}
.nav-link.is-active::after{width:22px}
.nav-actions{display:flex;align-items:center;gap:12px}
.mobile-toggle{
  display:none;width:42px;height:42px;border:1px solid var(--line);border-radius:10px;
  background:var(--bg-2);cursor:pointer;padding:0;
  align-items:center;justify-content:center;flex-direction:column;gap:5px;
  transition:border-color .24s var(--ease),background-color .24s var(--ease);
}
.mobile-toggle:hover{border-color:var(--brand);background:var(--brand-soft)}
.mobile-toggle span{display:block;width:18px;height:2px;background:var(--ink);border-radius:2px;transition:transform .26s var(--ease),opacity .26s var(--ease)}
.mobile-toggle[aria-expanded="true"] span:nth-child(1){transform:translateY(7px) rotate(45deg)}
.mobile-toggle[aria-expanded="true"] span:nth-child(2){opacity:0}
.mobile-toggle[aria-expanded="true"] span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}
.drawer-mask{
  position:fixed;inset:0;background:rgba(11,23,21,.44);z-index:90;
  opacity:0;visibility:hidden;transition:opacity .28s var(--ease),visibility .28s var(--ease);
}
.drawer-mask.is-open{opacity:1;visibility:visible}
.mobile-drawer{
  position:fixed;top:0;right:0;bottom:0;width:86vw;max-width:360px;z-index:95;
  background:var(--bg);display:flex;flex-direction:column;
  transform:translateX(100%);transition:transform .3s var(--ease);
  box-shadow:-18px 0 48px -24px rgba(18,26,24,.4);
}
.mobile-drawer.is-open{transform:translateX(0)}
.drawer-head{display:flex;align-items:center;justify-content:space-between;padding:18px 20px;border-bottom:1px solid var(--line)}
.drawer-close{background:none;border:1px solid var(--line);border-radius:8px;width:36px;height:36px;font-size:18px;line-height:1;color:var(--ink-2);cursor:pointer}
.drawer-close:hover{border-color:var(--brand);color:var(--brand)}
.drawer-nav{display:flex;flex-direction:column;padding:8px 0;overflow-y:auto;flex:1}
.drawer-nav a{font-size:18px;font-weight:600;color:var(--ink);line-height:60px;padding:0 20px;border-bottom:1px solid var(--line)}
.drawer-nav a:hover{color:var(--brand)}
.drawer-foot{padding:18px 20px 24px;border-top:1px solid var(--line)}
.drawer-foot p{margin:12px 0 0;font-size:13px;color:var(--ink-2)}

/* ===== 页头 ===== */
.page-head{
  padding:40px 0 30px;
  border-bottom:1px solid var(--line);
  background:linear-gradient(180deg,rgba(215,237,231,.55),rgba(246,244,238,0));
}
@media (min-width:960px){.page-head{padding:64px 0 44px}}
.crumbs{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:12px;letter-spacing:.02em;color:var(--ink-2)}
.crumbs a{color:var(--ink-2)}
.crumbs a:hover{color:var(--brand)}
.crumbs .sep{color:#C9C4B8}
.crumbs .current{color:var(--ink-2);max-width:24ch;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.head-tag{margin-top:18px}
.article-title{
  font-size:clamp(1.75rem,3.6vw,2.9rem);
  font-weight:800;line-height:1.24;letter-spacing:-.01em;
  margin:14px 0 16px;max-width:900px;
}
.meta-row{display:flex;flex-wrap:wrap;gap:6px 20px;font-size:13px;color:var(--ink-2);letter-spacing:.02em}
.meta-row span{display:inline-flex;align-items:center;gap:6px}
.meta-row .dot{width:5px;height:5px;border-radius:50%;background:var(--line)}

/* ===== 文章布局 ===== */
.article-layout{margin:0 -12px}
.article-layout>.cell{padding:0 12px;margin-bottom:24px}
.article-main{
  background:var(--bg-2);
  border:1px solid var(--line);
  border-radius:var(--r-card);
  padding:22px 18px;
  box-shadow:var(--sh-1);
}
@media (min-width:600px){.article-main{padding:28px 26px}}
@media (min-width:960px){.article-main{padding:36px 36px 40px}}

.article-body{max-width:760px;font-size:16px;line-height:1.85;color:var(--ink);word-break:break-word}
.article-body>*:first-child{margin-top:0}
.article-body p{margin:0 0 1.6em}
.article-body>p:first-of-type{font-size:18px;font-weight:500;line-height:1.8;color:#1B2724}
.article-body h2{
  font-size:clamp(1.28rem,2vw,1.6rem);
  font-weight:700;line-height:1.42;
  margin:2.4em 0 .8em;
  padding-left:14px;border-left:3px solid var(--brand);
}
.article-body h3{font-size:1.125rem;font-weight:700;line-height:1.55;margin:1.8em 0 .6em;color:var(--brand-deep)}
.article-body h4{font-size:1rem;font-weight:700;margin:1.4em 0 .5em}
.article-body ul,.article-body ol{margin:0 0 1.6em;padding-left:1.35em}
.article-body ul{list-style:none;padding-left:0}
.article-body ul>li{position:relative;padding-left:20px;margin-bottom:.55em}
.article-body ul>li::before{
  content:"";position:absolute;left:2px;top:.72em;
  width:8px;height:8px;background:var(--brand);border-radius:2px;
}
.article-body ol>li{margin-bottom:.55em}
.article-body ol>li::marker{color:var(--brand);font-weight:700}
.article-body a{color:var(--brand);text-decoration:underline;text-underline-offset:3px}
.article-body a:hover{color:var(--brand-deep)}
.article-body strong{font-weight:700;color:#0E1917}
.article-body img{border-radius:16px;margin:1.6em auto;border:1px solid var(--line)}
.article-body figure{margin:1.6em 0}
.article-body figcaption{font-size:13px;color:var(--ink-2);text-align:center;margin-top:10px;letter-spacing:.02em}
.article-body blockquote{
  margin:1.6em 0;padding:20px 22px;
  background:var(--bg);border-left:3px solid var(--brand);
  border-radius:0 12px 12px 0;color:var(--ink-2);
}
.article-body blockquote p:last-child{margin-bottom:0}
.article-body hr{border:0;border-top:1px solid var(--line);margin:2.2em 0}
.table-scroll{overflow-x:auto;margin:1.6em 0;border-radius:12px;border:1px solid var(--line)}
.article-body table{width:100%;border-collapse:collapse;font-size:15px;min-width:520px}
.article-body th{background:var(--brand-deep);color:var(--inverse);font-weight:700;text-align:left;padding:12px 14px}
.article-body td{padding:12px 14px;border-top:1px solid var(--line);color:var(--ink-2);background:var(--bg-2)}
.article-body tr:hover td{background:rgba(15,118,106,.05)}

/* 空态 */
.empty-state{
  min-height:160px;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:14px;
  text-align:center;color:var(--ink-2);
}
.empty-state svg{width:32px;height:32px;color:#B6B1A6}
.empty-state p{margin:0;font-size:15px}

/* ===== 侧栏 ===== */
.article-side{display:flex;flex-direction:column;gap:20px}
.side-card{
  background:var(--bg-2);border:1px solid var(--line);
  border-radius:var(--r-card);padding:22px;box-shadow:var(--sh-1);
}
.side-card.is-sticky{position:sticky;top:96px}
.side-title{font-size:14px;font-weight:700;letter-spacing:.1em;color:var(--ink-2);text-transform:uppercase;margin:0 0 14px}
.toc-list{list-style:none;margin:0;padding:0;font-size:14px;line-height:1.6}
.toc-list li{margin:0}
.toc-list a{
  display:block;padding:8px 0 8px 14px;
  border-left:2px solid var(--line);
  color:var(--ink-2);
  transition:color .22s var(--ease),border-color .22s var(--ease),background-color .22s var(--ease);
}
.toc-list a:hover{color:var(--brand);border-left-color:var(--brand)}
.toc-list a.is-current{color:var(--brand);border-left-color:var(--brand);font-weight:700;background:rgba(215,237,231,.35)}
.toc-list .toc-sub a{padding-left:26px;font-size:13px}
.side-cta{
  background:linear-gradient(150deg,var(--brand-deep),#0B1715);
  border:1px solid rgba(255,255,255,.12);
  border-radius:var(--r-card);padding:24px;color:var(--inverse);
}
.side-cta h3{font-size:1.0625rem;font-weight:700;color:var(--inverse);margin:0 0 8px}
.side-cta p{font-size:13px;line-height:1.8;color:rgba(242,240,234,.72);margin:0 0 16px}
.side-cta .btn{background:var(--brand-soft);color:var(--brand-deep);font-weight:700}
.side-cta .btn:hover{background:#EAF6F2;color:var(--brand-deep)}

/* 移动端目录 */
.toc-mobile{display:none;margin-bottom:20px}
.toc-mobile-toggle{
  width:100%;display:flex;align-items:center;justify-content:space-between;
  height:46px;padding:0 16px;background:var(--bg);
  border:1px solid var(--line);border-radius:10px;
  font-size:15px;font-weight:600;color:var(--ink);cursor:pointer;
}
.toc-mobile-toggle:hover{border-color:var(--brand)}
.toc-plus{font-size:18px;line-height:1;color:var(--brand);transition:transform .28s var(--ease)}
.toc-mobile.is-open .toc-plus{transform:rotate(45deg)}
.toc-mobile-panel{display:none;margin-top:8px;border:1px solid var(--line);border-radius:10px;background:var(--bg-2);padding:10px 14px}
.toc-mobile.is-open .toc-mobile-panel{display:block}

/* ===== 相关推荐 ===== */
.sec-head{display:flex;flex-wrap:wrap;align-items:flex-end;justify-content:space-between;gap:12px;margin-bottom:28px}
.sec-head h2{font-size:clamp(1.4rem,2.4vw,1.85rem);font-weight:700;line-height:1.3}
.sec-head p{margin:6px 0 0;font-size:15px;color:var(--ink-2)}
.card-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px}
.rec-card{
  display:flex;flex-direction:column;
  background:var(--bg-2);border:1px solid var(--line);border-radius:var(--r-card);
  overflow:hidden;box-shadow:var(--sh-1);
  transition:transform .28s var(--ease),box-shadow .28s var(--ease),border-color .28s var(--ease);
}
.rec-card:hover{transform:translateY(-4px);box-shadow:var(--sh-2);border-color:rgba(15,118,106,.35)}
.thumb{position:relative;aspect-ratio:16/10;overflow:hidden;background:var(--brand-soft);border-bottom:1px solid var(--line)}
.thumb img{width:100%;height:100%;object-fit:cover;transition:transform .3s var(--ease)}
.rec-card:hover .thumb img{transform:scale(1.04)}
.rec-body{padding:20px 22px 22px;display:flex;flex-direction:column;gap:10px;flex:1}
.rec-body h3{
  font-size:1.0625rem;font-weight:700;line-height:1.5;margin:0;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.rec-body p{
  margin:0;font-size:14px;line-height:1.75;color:var(--ink-2);
  display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden;
}
.rec-foot{margin-top:auto;display:flex;align-items:center;justify-content:space-between;gap:10px;padding-top:6px}
.rec-foot .tag{font-size:12px;color:var(--ink-2);letter-spacing:.02em}

/* ===== 深色 CTA ===== */
.deep-cta{
  position:relative;overflow:hidden;
  background:linear-gradient(135deg,var(--brand-deep),#0B1715);
  color:var(--inverse);
  padding:56px 0;
}
@media (min-width:960px){.deep-cta{padding:76px 0}}
.deep-cta::after{
  content:"";position:absolute;inset:0;
  background-image:url('/assets/images/backpic/back-2.webp');
  background-size:cover;background-position:center;
  opacity:.14;pointer-events:none;
}
.deep-cta .container{position:relative;z-index:2}
.cta-flex{display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:28px}
.cta-text{max-width:560px}
.cta-text h2{font-size:clamp(1.5rem,2.8vw,2.1rem);font-weight:800;line-height:1.28;color:var(--inverse);margin:0 0 12px}
.cta-text p{font-size:15px;line-height:1.8;color:rgba(242,240,234,.78);margin:0}
.cta-actions{display:flex;flex-wrap:wrap;gap:12px}

/* ===== 页脚 ===== */
.site-footer{background:var(--dark);color:rgba(242,240,234,.72);padding:56px 0 0}
@media (min-width:960px){.site-footer{padding:64px 0 0}}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.2fr;gap:32px}
.footer-brand p{font-size:14px;line-height:1.8;margin:16px 0 18px;color:rgba(242,240,234,.7)}
.footer-logo{margin-bottom:4px}
.site-footer .brand-main{color:var(--inverse)}
.site-footer .brand-sub{color:rgba(242,240,234,.6)}
.site-footer .brand-mark{color:var(--brand-soft)}
.footer-badges{display:flex;flex-wrap:wrap;gap:8px}
.footer-badges span{font-size:12px;padding:4px 10px;border-radius:6px;background:rgba(255,255,255,.1);color:var(--inverse)}
.footer-col h3{font-size:15px;font-weight:700;color:var(--inverse);margin:0 0 16px;letter-spacing:.02em}
.footer-col a{display:block;font-size:14px;color:rgba(242,240,234,.72);line-height:1.9;margin-bottom:6px;transition:color .22s var(--ease),transform .22s var(--ease)}
.footer-col a:hover{color:var(--brand-soft);transform:translateX(2px)}
.footer-col p{font-size:14px;line-height:1.9;margin:0 0 6px;color:rgba(242,240,234,.72)}
.footer-bottom{
  margin-top:40px;padding:18px 0 24px;
  border-top:1px solid rgba(255,255,255,.12);
  display:flex;flex-wrap:wrap;gap:10px 24px;justify-content:space-between;
  font-size:12px;color:rgba(242,240,234,.56);letter-spacing:.02em;
}

/* ===== 动效 ===== */
.reveal{opacity:0;transform:translateY(12px);transition:opacity .4s var(--ease),transform .4s var(--ease)}
.reveal.is-in{opacity:1;transform:none}
@media (prefers-reduced-motion:reduce){
  .reveal{opacity:1;transform:none;transition:none}
  html{scroll-behavior:auto}
  *{transition-duration:.01ms !important;animation-duration:.01ms !important}
}

/* ===== 响应式 ===== */
@media (max-width:1279px){
  .desktop-nav{gap:20px}
  .nav-link{font-size:14px}
}
@media (max-width:1023px){
  .card-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px}
  .toc-mobile{display:block}
  .article-side{display:none}
}
@media (max-width:959px){
  .desktop-nav{display:none}
  .nav-actions .btn-primary{display:none}
  .mobile-toggle{display:inline-flex}
}
@media (max-width:767px){
  .card-grid{grid-template-columns:1fr;gap:16px}
  .article-title{font-size:clamp(1.6rem,6vw,2.1rem)}
  .cta-flex{flex-direction:column;align-items:flex-start}
  .article-body>p:first-of-type{font-size:17px}
}
@media (max-width:599px){
  .footer-grid{grid-template-columns:1fr}
  .footer-bottom{flex-direction:column;gap:6px}
  .rec-body{padding:16px}
  .side-cta{padding:20px}
  .meta-row{font-size:12px;gap:4px 14px}
}

/* roulang page: category1 */
:root{
  --brand:#0F766A;
  --brand-deep:#0A4E46;
  --brand-soft:#D7EDE7;
  --accent:#E08D3C;
  --bg:#F6F4EE;
  --bg-2:#FFFDF9;
  --line:#E2DED4;
  --ink:#121A18;
  --ink-2:#4A5654;
  --inverse:#F2F0EA;
  --ok:#2F8F5B;
  --warn:#B8792A;
  --r-btn:10px;
  --r-card:16px;
  --r-lg:20px;
  --sh-1:0 1px 2px rgba(18,26,24,.04),0 8px 24px -12px rgba(18,26,24,.16);
  --sh-2:0 18px 48px -24px rgba(18,26,24,.30);
  --ease:cubic-bezier(.22,.61,.36,1);
  --sec-y:96px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:"PingFang SC","HarmonyOS Sans SC","Noto Sans SC","Microsoft YaHei",system-ui,sans-serif;
  font-size:16px;
  line-height:1.85;
  color:var(--ink);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}
img{max-width:100%;display:block;border:0}
a{color:var(--ink);text-decoration:none;transition:color .24s var(--ease)}
a:hover{color:var(--brand)}
p{margin:0 0 1.1em}
p:last-child{margin-bottom:0}
h1,h2,h3,h4{margin:0;font-weight:700;color:var(--ink);letter-spacing:-0.01em}
ul,ol{margin:0;padding:0;list-style:none}
button{font-family:inherit}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px;border-radius:4px}

/* 容器与栅格兜底 */
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 20px}
@media(min-width:960px){.container{padding:0 32px}}
.grid-x{display:flex;flex-wrap:wrap;margin-left:-12px;margin-right:-12px}
.grid-x>.cell{width:100%;padding-left:12px;padding-right:12px;min-width:0}
@media(min-width:768px){
  .grid-x{margin-left:-16px;margin-right:-16px}
  .grid-x>.cell{padding-left:16px;padding-right:16px}
  .grid-x>.medium-5{width:41.6667%}
  .grid-x>.medium-6{width:50%}
  .grid-x>.medium-7{width:58.3333%}
  .grid-x>.medium-8{width:66.6667%}
  .grid-x>.medium-9{width:75%}
  .grid-x>.medium-3{width:25%}
}
@media(min-width:1024px){
  .grid-x>.large-4{width:33.3333%}
  .grid-x>.large-5{width:41.6667%}
  .grid-x>.large-6{width:50%}
  .grid-x>.large-7{width:58.3333%}
  .grid-x>.large-8{width:66.6667%}
  .grid-x>.large-3{width:25%}
}

/* 顶部导航 */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(246,244,238,.88);
  -webkit-backdrop-filter:blur(10px);
  backdrop-filter:blur(10px);
  border-bottom:1px solid transparent;
  transition:border-color .26s var(--ease),box-shadow .26s var(--ease);
}
.site-header.is-scrolled{border-bottom-color:var(--line);box-shadow:var(--sh-1)}
.nav-wrap{display:flex;align-items:center;justify-content:space-between;gap:24px;min-height:72px}
.brand-logo{display:inline-flex;align-items:center;gap:10px;color:var(--ink);flex:0 0 auto}
.brand-logo:hover{color:var(--ink)}
.brand-mark{width:30px;height:30px;display:inline-flex;color:var(--brand);flex:0 0 auto}
.brand-mark svg{width:100%;height:100%}
.brand-text{display:flex;flex-direction:column;line-height:1.16}
.brand-main{font-size:17px;font-weight:800;letter-spacing:-0.01em}
.brand-sub{font-size:11px;letter-spacing:.18em;color:var(--ink-2);margin-top:2px}
.desktop-nav{display:flex;align-items:center;gap:28px}
.nav-link{position:relative;display:inline-block;font-size:15px;font-weight:500;color:var(--ink-2);padding:6px 0;transition:color .24s var(--ease)}
.nav-link::after{
  content:"";position:absolute;left:50%;bottom:-8px;width:0;height:2px;
  background:var(--brand);transform:translateX(-50%);
  transition:width .28s var(--ease);
}
.nav-link:hover{color:var(--ink)}
.nav-link:hover::after{width:22px}
.nav-link.is-active{color:var(--brand);font-weight:600}
.nav-link.is-active::after{width:22px}
.nav-actions{display:flex;align-items:center;gap:14px;flex:0 0 auto}

/* 按钮 */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:46px;padding:0 26px;border-radius:var(--r-btn);
  font-size:15px;font-weight:700;line-height:1;border:1px solid transparent;
  cursor:pointer;transition:background-color .24s var(--ease),color .24s var(--ease),transform .24s var(--ease),box-shadow .24s var(--ease),border-color .24s var(--ease);
}
.btn-primary{background:var(--brand);color:#F6F4EE}
.btn-primary:hover{background:#0C6156;color:#F6F4EE;transform:translateY(-1px);box-shadow:var(--sh-1)}
.btn-primary .arrow{transition:transform .24s var(--ease)}
.btn-primary:hover .arrow{transform:translateX(4px)}
.btn-ghost{background:transparent;border-color:var(--brand);color:var(--brand)}
.btn-ghost:hover{background:var(--brand-soft);color:var(--brand-deep)}
.btn-sm{height:40px;padding:0 20px;font-size:14px}
.btn-block{display:flex;width:100%}
.text-link{display:inline-flex;align-items:center;gap:6px;font-size:14px;font-weight:600;color:var(--ink);position:relative}
.text-link::after{content:"";position:absolute;left:0;bottom:-3px;width:0;height:2px;background:var(--brand);transition:width .28s var(--ease)}
.text-link:hover{color:var(--brand)}
.text-link:hover::after{width:100%}

/* 移动端开关与抽屉 */
.mobile-toggle{
  display:none;width:42px;height:42px;border:1px solid var(--line);background:var(--bg-2);
  border-radius:10px;cursor:pointer;flex-direction:column;align-items:center;justify-content:center;gap:5px;
  transition:border-color .24s var(--ease);
}
.mobile-toggle span{display:block;width:18px;height:2px;background:var(--ink);border-radius:2px;transition:background-color .24s var(--ease)}
.mobile-toggle:hover{border-color:var(--brand)}
.mobile-toggle:hover span{background:var(--brand)}
.drawer-backdrop{
  position:fixed;inset:0;background:rgba(11,23,21,.42);opacity:0;visibility:hidden;
  transition:opacity .28s var(--ease),visibility .28s var(--ease);z-index:70;
}
.mobile-drawer{
  position:fixed;top:0;right:0;bottom:0;width:86vw;max-width:360px;background:var(--bg);
  z-index:80;padding:22px 22px 28px;display:flex;flex-direction:column;
  transform:translateX(102%);transition:transform .3s var(--ease);
  box-shadow:-24px 0 60px -30px rgba(18,26,24,.5);overflow-y:auto;
}
body.drawer-open .mobile-drawer{transform:translateX(0)}
body.drawer-open .drawer-backdrop{opacity:1;visibility:visible}
body.drawer-open{overflow:hidden}
.drawer-head{display:flex;align-items:center;justify-content:space-between;gap:12px;padding-bottom:16px;border-bottom:1px solid var(--line)}
.drawer-close{
  width:36px;height:36px;border:1px solid var(--line);background:var(--bg-2);border-radius:10px;
  color:var(--ink-2);font-size:18px;line-height:1;cursor:pointer;display:inline-flex;align-items:center;justify-content:center;
}
.drawer-close:hover{border-color:var(--brand);color:var(--brand)}
.drawer-nav{margin:8px 0 0;display:flex;flex-direction:column}
.drawer-nav a{
  font-size:18px;font-weight:600;line-height:60px;border-bottom:1px solid var(--line);color:var(--ink);
}
.drawer-nav a.is-active{color:var(--brand)}
.drawer-foot{margin-top:auto;padding-top:24px;display:flex;flex-direction:column;gap:12px}
.drawer-foot p{font-size:13px;color:var(--ink-2);margin:0}

/* 面包屑 */
.breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:12px;letter-spacing:.02em;color:var(--ink-2);margin-bottom:22px}
.breadcrumb a{color:var(--ink-2)}
.breadcrumb a:hover{color:var(--brand)}
.breadcrumb .sep{color:#B8B2A6}
.breadcrumb .current{color:var(--ink)}

/* 首屏 */
.page-hero{padding:38px 0 42px;border-bottom:1px solid var(--line);position:relative;overflow:hidden}
.page-hero::before{
  content:"";position:absolute;inset:0;
  background-image:url("/assets/images/backpic/back-2.webp");
  background-size:cover;background-position:center;
  opacity:.10;pointer-events:none;
}
.page-hero .container{position:relative;z-index:1}
.eyebrow{
  display:inline-block;font-size:12px;font-weight:700;letter-spacing:.16em;text-transform:uppercase;
  color:var(--brand);margin-bottom:14px;
}
.page-hero h1{
  font-size:clamp(2.15rem,5vw,3.4rem);font-weight:800;line-height:1.14;letter-spacing:-0.01em;
  margin-bottom:18px;max-width:16em;
}
.hero-lead{font-size:17px;color:var(--ink-2);max-width:34em;margin-bottom:26px}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:18px}
.hero-trust{font-size:13px;color:var(--ink-2);letter-spacing:.02em;display:flex;align-items:center;gap:8px}
.hero-trust::before{content:"";width:8px;height:8px;background:var(--brand);border-radius:2px;flex:0 0 auto}
.hero-figure{
  border-radius:var(--r-lg);overflow:hidden;border:1px solid var(--line);
  box-shadow:var(--sh-1);background:var(--brand-soft);aspect-ratio:16/11;
}
.hero-figure img{width:100%;height:100%;object-fit:cover;transition:transform .32s var(--ease)}
.hero-figure:hover img{transform:scale(1.04)}

/* 数据条 */
.stat-strip{border-bottom:1px solid var(--line);padding:36px 0;background:var(--bg)}
.stat-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px}
.stat-item{padding-left:18px;border-left:2px solid var(--brand-soft)}
.stat-num{font-size:clamp(1.7rem,3vw,2.2rem);font-weight:800;color:var(--brand);line-height:1.2;letter-spacing:-0.02em}
.stat-num em{font-style:normal;font-size:.55em;font-weight:700;margin-left:4px;color:var(--ink-2)}
.stat-desc{font-size:12px;letter-spacing:.02em;color:var(--ink-2);margin-top:4px}

/* 通用板块 */
.section{padding:var(--sec-y) 0}
.section-alt{background:var(--bg-2);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.section-head{max-width:760px;margin-bottom:38px}
.section-head h2{font-size:clamp(1.55rem,2.6vw,2.3rem);font-weight:700;line-height:1.28;margin-bottom:12px}
.section-head p{color:var(--ink-2);font-size:15.5px;margin:0}
.section-head-row{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:38px;flex-wrap:wrap}
.section-head-row .section-head{margin-bottom:0}

/* 对比表 */
.compare-wrap{
  border:1px solid var(--line);border-radius:var(--r-card);background:var(--bg-2);
  box-shadow:var(--sh-1);overflow:hidden;
}
.compare-scroll{overflow-x:auto;-webkit-overflow-scrolling:touch}
.compare-table{width:100%;border-collapse:collapse;table-layout:fixed;min-width:720px;font-size:15px}
.compare-table th,.compare-table td{padding:0 18px;height:56px;text-align:left;vertical-align:middle;border-bottom:1px solid var(--line)}
.compare-table thead th{
  background:var(--brand-deep);color:var(--inverse);font-weight:700;font-size:14.5px;
  letter-spacing:.02em;height:64px;position:relative;
}
.compare-table thead th:first-child{width:260px;background:#083C36}
.compare-table tbody th{
  font-weight:600;color:var(--ink);position:sticky;left:0;background:var(--bg-2);z-index:2;
  font-size:15px;border-right:1px solid var(--line);width:260px;
}
.compare-table tbody td{color:var(--ink-2)}
.compare-table tbody tr:last-child th,
.compare-table tbody tr:last-child td{border-bottom:0}
.compare-table tbody tr:hover th,
.compare-table tbody tr:hover td{background:rgba(15,118,106,.05)}
.compare-table thead th.is-recommended{background:var(--brand);color:#fff}
.compare-table .is-recommended{background:var(--brand-soft)}
.compare-table tbody tr:hover td.is-recommended{background:#CBE7E0}
.rec-badge{
  position:absolute;top:0;left:50%;transform:translate(-50%,-50%);
  background:var(--brand-deep);color:#fff;font-size:11px;font-weight:700;letter-spacing:.08em;
  padding:3px 10px;border-radius:6px;white-space:nowrap;
}
.price-cell{font-weight:800;color:var(--brand);font-size:15.5px;display:block;line-height:1.4}
.price-cell small{display:block;font-weight:500;font-size:12px;color:var(--ink-2);margin-top:2px}
.mark-yes{display:inline-block;width:14px;height:9px;border-left:2px solid var(--brand);border-bottom:2px solid var(--brand);transform:rotate(-45deg);margin-right:2px;vertical-align:middle}
.mark-no{color:#9A948A;font-weight:700}
.table-note{font-size:13px;color:var(--ink-2);margin-top:16px;letter-spacing:.02em}

/* 移动端对比卡片 */
.compare-cards{display:none;gap:16px}
.compare-card{border:1px solid var(--line);border-radius:var(--r-card);background:var(--bg-2);padding:20px;box-shadow:var(--sh-1);position:relative}
.compare-card.is-recommended{border-color:var(--brand);box-shadow:var(--sh-2)}
.compare-card .cc-tag{
  position:absolute;top:-11px;right:16px;background:var(--brand);color:#fff;font-size:11px;font-weight:700;
  letter-spacing:.08em;padding:3px 10px;border-radius:6px;
}
.cc-head{display:flex;align-items:baseline;justify-content:space-between;gap:12px;padding-bottom:14px;border-bottom:1px solid var(--line);margin-bottom:12px}
.cc-name{font-size:17px;font-weight:800}
.cc-price{font-size:16px;font-weight:800;color:var(--accent)}
.cc-price small{font-size:12px;color:var(--ink-2);font-weight:500}
.cc-row{display:flex;align-items:center;justify-content:space-between;gap:14px;padding:9px 0;font-size:14px;border-bottom:1px dashed var(--line)}
.cc-row:last-child{border-bottom:0}
.cc-row span:first-child{color:var(--ink-2)}
.cc-row span:last-child{font-weight:600;color:var(--ink);text-align:right}

/* 等级亮点 */
.tier-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;position:relative;margin-left:12px}
.tier-card{
  position:relative;background:var(--bg-2);border:1px solid var(--line);border-radius:var(--r-card);
  padding:26px 24px 24px;box-shadow:var(--sh-1);
  transition:transform .28s var(--ease),box-shadow .28s var(--ease),border-color .28s var(--ease);
}
.tier-card:hover{transform:translateY(-4px);box-shadow:var(--sh-2);border-color:rgba(15,118,106,.35)}
.tier-num{
  font-size:4rem;font-weight:800;line-height:1;color:var(--line);letter-spacing:-0.04em;
  transition:color .28s var(--ease);margin-bottom:10px;
}
.tier-card:hover .tier-num{color:var(--brand)}
.tier-card h3{font-size:1.125rem;font-weight:700;line-height:1.5;margin-bottom:6px}
.tier-sub{font-size:13px;color:var(--ink-2);letter-spacing:.02em;margin-bottom:16px;display:block}
.tier-list li{position:relative;padding-left:18px;font-size:14.5px;color:var(--ink-2);line-height:1.8;margin-bottom:8px}
.tier-list li::before{content:"";position:absolute;left:0;top:.72em;width:8px;height:8px;background:var(--brand);border-radius:2px}
.tier-list li:last-child{margin-bottom:0}

/* 适用场景 */
.fit-panel{
  background:var(--bg-2);border:1px solid var(--line);border-radius:var(--r-card);
  padding:28px;box-shadow:var(--sh-1);height:100%;
}
.fit-panel h3{font-size:1.125rem;margin-bottom:6px}
.fit-tag{
  display:inline-block;background:var(--brand-soft);color:var(--brand-deep);font-size:12px;font-weight:700;
  padding:4px 10px;border-radius:6px;margin-bottom:16px;letter-spacing:.02em;
}
.fit-list li{position:relative;padding-left:20px;margin-bottom:12px;color:var(--ink-2);font-size:15px;line-height:1.8}
.fit-list li:last-child{margin-bottom:0}
.fit-list li::before{
  content:"";position:absolute;left:0;top:.65em;width:9px;height:9px;border-radius:2px;
  background:var(--brand);opacity:.85;
}
.fit-side{
  border:1px solid var(--line);border-radius:var(--r-card);padding:28px;
  background:linear-gradient(160deg,var(--brand-soft) 0%,#EAF5F1 100%);
  height:100%;display:flex;flex-direction:column;justify-content:center;
}
.fit-side h3{font-size:1.05rem;margin-bottom:12px}
.fit-side p{font-size:14.5px;color:var(--ink-2);margin-bottom:18px}

/* 步骤流程 */
.steps{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;position:relative}
.step{
  position:relative;background:var(--bg-2);border:1px solid var(--line);border-radius:var(--r-card);
  padding:26px 24px;box-shadow:var(--sh-1);
}
.step-dot{
  width:36px;height:36px;border-radius:50%;background:var(--brand);color:#fff;
  display:inline-flex;align-items:center;justify-content:center;font-size:14px;font-weight:800;
  margin-bottom:16px;letter-spacing:.02em;
}
.step h3{font-size:1.05rem;margin-bottom:8px}
.step p{font-size:14.5px;color:var(--ink-2);margin:0}
.step::after{
  content:"";position:absolute;top:44px;right:-24px;width:24px;height:0;
  border-top:2px dashed var(--line);
}
.step:last-child::after{display:none}

/* FAQ */
.faq-list{display:flex;flex-direction:column;gap:12px;max-width:900px}
.faq-item{background:var(--bg-2);border:1px solid var(--line);border-radius:12px;transition:border-color .26s var(--ease),box-shadow .26s var(--ease)}
.faq-item:hover{border-color:rgba(15,118,106,.35)}
.faq-item.is-open{border-color:rgba(15,118,106,.45);box-shadow:var(--sh-1)}
.faq-q{
  width:100%;display:flex;align-items:center;gap:14px;background:none;border:0;cursor:pointer;
  padding:18px 20px;text-align:left;font-size:16px;font-weight:600;color:var(--ink);line-height:1.6;
}
.faq-q .idx{font-size:14px;font-weight:700;color:var(--brand);flex:0 0 auto;letter-spacing:.02em}
.faq-q .qtext{flex:1 1 auto;min-width:0}
.faq-q .plus{
  position:relative;width:18px;height:18px;flex:0 0 auto;
  transition:transform .3s var(--ease);
}
.faq-q .plus::before,
.faq-q .plus::after{
  content:"";position:absolute;background:var(--brand);border-radius:2px;
}
.faq-q .plus::before{left:0;top:8px;width:18px;height:2px}
.faq-q .plus::after{left:8px;top:0;width:2px;height:18px}
.faq-item.is-open .plus{transform:rotate(45deg)}
.faq-a{
  max-height:0;overflow:hidden;transition:max-height .3s var(--ease);
}
.faq-a-inner{padding:0 20px 20px 54px;font-size:15px;line-height:1.9;color:var(--ink-2)}
.faq-a-inner p{margin:0}

/* CTA */
.cta-band{
  position:relative;overflow:hidden;color:var(--inverse);
  background:linear-gradient(120deg,var(--brand-deep) 0%,#0B1715 100%);
  border-radius:0;
}
.cta-band::before{
  content:"";position:absolute;inset:0;
  background-image:url("/assets/images/backpic/back-1.png");
  background-size:cover;background-position:center;opacity:.14;
}
.cta-inner{position:relative;z-index:1;padding:72px 0}
.cta-flex{display:flex;align-items:center;justify-content:space-between;gap:36px;flex-wrap:wrap}
.cta-text h2{color:#fff;font-size:clamp(1.5rem,2.6vw,2.1rem);line-height:1.3;margin-bottom:14px;max-width:22em}
.cta-list{display:flex;flex-wrap:wrap;gap:10px 26px;margin:0}
.cta-list li{position:relative;padding-left:18px;font-size:14.5px;color:rgba(242,240,234,.82)}
.cta-list li::before{content:"";position:absolute;left:0;top:.7em;width:8px;height:8px;background:var(--brand-soft);border-radius:2px}
.cta-band .btn-primary{background:var(--brand-soft);color:var(--brand-deep)}
.cta-band .btn-primary:hover{background:#fff;color:var(--brand-deep)}
.cta-band .btn-ghost{border-color:rgba(242,240,234,.55);color:#F2F0EA}
.cta-band .btn-ghost:hover{background:rgba(255,255,255,.12);color:#fff}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px}

/* 页脚 */
.site-footer{background:#0B1715;color:var(--inverse);padding:64px 0 0;margin-top:0}
.footer-grid{display:grid;grid-template-columns:1.45fr 1fr 1fr 1.15fr;gap:32px;padding-bottom:48px}
.footer-brand p{font-size:14px;color:rgba(242,240,234,.72);line-height:1.85;margin:18px 0 20px;max-width:30em}
.footer-logo{color:var(--inverse)}
.footer-logo:hover{color:var(--inverse)}
.footer-logo .brand-mark{color:var(--brand-soft)}
.footer-logo .brand-main{color:#F2F0EA}
.footer-logo .brand-sub{color:rgba(242,240,234,.6)}
.footer-badges{display:flex;flex-wrap:wrap;gap:8px}
.footer-badges span{
  background:rgba(255,255,255,.10);color:rgba(242,240,234,.85);font-size:12px;
  padding:4px 10px;border-radius:6px;letter-spacing:.02em;
}
.footer-col h3{font-size:14px;font-weight:700;color:#F2F0EA;margin-bottom:16px;letter-spacing:.02em}
.footer-col a{display:block;font-size:14px;color:rgba(242,240,234,.72);line-height:1.9;margin-bottom:6px;transition:color .24s var(--ease),transform .24s var(--ease)}
.footer-col a:hover{color:var(--brand-soft);transform:translateX(2px)}
.footer-col p{font-size:14px;color:rgba(242,240,234,.72);line-height:1.9;margin:0 0 6px}
.footer-bottom{
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  border-top:1px solid rgba(255,255,255,.12);padding:20px 0 24px;
  font-size:12px;color:rgba(242,240,234,.6);letter-spacing:.02em;
}

/* 滚动淡入 */
.reveal{opacity:0;transform:translateY(12px);transition:opacity .5s var(--ease),transform .5s var(--ease)}
.reveal.in-view{opacity:1;transform:none}

/* 响应式 */
@media(max-width:1023px){
  :root{--sec-y:72px}
  .nav-link{gap:0}
  .desktop-nav{gap:20px}
}
@media(max-width:959px){
  .desktop-nav{display:none}
  .nav-actions .btn-primary{display:none}
  .mobile-toggle{display:inline-flex}
  .stat-grid{grid-template-columns:repeat(2,1fr);gap:20px}
  .tier-grid{grid-template-columns:1fr;gap:18px;margin-left:0}
  .steps{grid-template-columns:1fr;gap:18px}
  .step::after{display:none}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px}
  .page-hero h1{max-width:100%}
}
@media(max-width:767px){
  :root{--sec-y:52px}
  .page-hero{padding:30px 0 34px}
  .hero-lead{font-size:15.5px}
  .compare-scroll{display:none}
  .compare-cards{display:grid;grid-template-columns:1fr}
  .compare-wrap{background:transparent;border:0;box-shadow:none;overflow:visible}
  .hero-figure{aspect-ratio:16/10;margin-top:6px}
  .cta-inner{padding:52px 0}
  .cta-flex{gap:26px}
  .footer-grid{grid-template-columns:1fr;gap:26px}
  .footer-bottom{flex-direction:column;align-items:flex-start;gap:6px}
  .fit-panel,.fit-side{padding:22px}
  .faq-a-inner{padding-left:20px}
  .brand-sub{letter-spacing:.12em}
}
@media(max-width:599px){
  .stat-grid{grid-template-columns:repeat(2,1fr);gap:16px}
  .stat-num{font-size:1.6rem}
  .hero-actions{flex-direction:column;align-items:stretch}
  .hero-actions .btn{width:100%}
  .tier-num{font-size:3.2rem}
  .compare-card{padding:16px}
}
@media(prefers-reduced-motion:reduce){
  *{animation-duration:.001ms !important;transition-duration:.001ms !important}
  html{scroll-behavior:auto}
  .reveal{opacity:1;transform:none}
}

/* roulang page: category3 */
:root{
  --brand:#0F766A;
  --brand-deep:#0A4E46;
  --brand-soft:#D7EDE7;
  --accent:#E08D3C;
  --bg:#F6F4EE;
  --bg-2:#FFFDF9;
  --line:#E2DED4;
  --ink:#121A18;
  --ink-2:#4A5654;
  --inverse:#F2F0EA;
  --ok:#2F8F5B;
  --warn:#B8792A;
  --r-sm:6px;
  --r-btn:10px;
  --r-card:16px;
  --r-lg:20px;
  --sh-1:0 1px 2px rgba(18,26,24,.04), 0 8px 24px -12px rgba(18,26,24,.16);
  --sh-2:0 18px 48px -24px rgba(18,26,24,.30);
  --ease:cubic-bezier(.22,.61,.36,1);
  --nav-h:72px;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:"PingFang SC","HarmonyOS Sans SC","Noto Sans SC","Microsoft YaHei",system-ui,sans-serif;
  font-size:16px;
  line-height:1.85;
  color:var(--ink);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
body.no-scroll{overflow:hidden;}
img{max-width:100%;display:block;}
a{color:var(--ink);text-decoration:none;transition:color .26s var(--ease);}
a:hover{color:var(--brand);}
p{margin:0 0 1.6em;}
p:last-child{margin-bottom:0;}
h1,h2,h3,h4{margin:0;font-weight:700;color:var(--ink);letter-spacing:-.01em;}
ul,ol{margin:0;padding:0;list-style:none;}
button{font-family:inherit;cursor:pointer;border:0;background:none;color:inherit;}
input,textarea,select{font-family:inherit;font-size:15px;}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px;}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 20px;}
@media (min-width:960px){.container{padding:0 32px;}}
.eyebrow{display:inline-block;font-size:12px;font-weight:700;letter-spacing:.16em;text-transform:uppercase;color:var(--brand);margin-bottom:14px;}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:46px;padding:0 26px;border-radius:var(--r-btn);
  font-size:15px;font-weight:700;line-height:1;
  transition:background .26s var(--ease),color .26s var(--ease),transform .26s var(--ease),box-shadow .26s var(--ease),border-color .26s var(--ease);
  border:1px solid transparent;white-space:nowrap;
}
.btn svg{transition:transform .26s var(--ease);}
.btn:hover svg{transform:translateX(4px);}
.btn-primary{background:var(--brand);color:#F6F4EE;box-shadow:0 10px 22px -16px rgba(15,118,106,.9);}
.btn-primary:hover{background:#0C6157;color:#F6F4EE;box-shadow:0 14px 26px -14px rgba(15,118,106,.75);}
.btn-ghost{background:transparent;color:var(--brand);border-color:var(--brand);}
.btn-ghost:hover{background:var(--brand-soft);color:var(--brand-deep);}
.btn-light{background:var(--inverse);color:var(--brand-deep);}
.btn-light:hover{background:#fff;color:var(--brand-deep);}
.btn-sm{height:40px;padding:0 20px;font-size:14px;}
.btn-block{width:100%;}
.text-link{display:inline-flex;align-items:center;gap:6px;font-size:14px;font-weight:700;color:var(--ink);position:relative;}
.text-link::after{content:"";position:absolute;left:0;bottom:-4px;height:2px;width:0;background:var(--brand);transition:width .28s var(--ease);}
.text-link:hover{color:var(--brand);}
.text-link:hover::after{width:100%;}
.text-link svg{transition:transform .26s var(--ease);}
.text-link:hover svg{transform:translateX(4px);}

/* ---------- header ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(246,244,238,.88);
  backdrop-filter:blur(10px);-webkit-backdrop-filter:blur(10px);
  border-bottom:1px solid transparent;
  transition:border-color .26s var(--ease),box-shadow .26s var(--ease);
}
.site-header.is-scrolled{border-bottom-color:var(--line);box-shadow:var(--sh-1);}
.nav-wrap{display:flex;align-items:center;justify-content:space-between;height:var(--nav-h);gap:20px;}
.brand-logo{display:flex;align-items:center;gap:10px;flex:0 0 auto;}
.brand-mark{width:30px;height:30px;color:var(--brand);display:inline-flex;align-items:center;justify-content:center;}
.brand-mark svg{width:30px;height:30px;}
.brand-text{display:flex;flex-direction:column;line-height:1.2;}
.brand-main{font-size:17px;font-weight:800;color:var(--ink);letter-spacing:.01em;}
.brand-sub{font-size:11px;letter-spacing:.18em;color:var(--ink-2);margin-top:3px;}
.desktop-nav{display:flex;align-items:center;gap:28px;}
.nav-link{
  position:relative;font-size:15px;font-weight:500;color:var(--ink-2);
  padding:6px 0;transition:color .24s var(--ease);
}
.nav-link::after{
  content:"";position:absolute;left:50%;bottom:-2px;transform:translateX(-50%);
  width:0;height:2px;background:var(--brand);transition:width .26s var(--ease);
}
.nav-link:hover{color:var(--ink);}
.nav-link:hover::after{width:22px;}
.nav-link.is-active{color:var(--brand);font-weight:700;}
.nav-link.is-active::after{width:22px;}
.nav-actions{display:flex;align-items:center;gap:14px;}
.mobile-toggle{display:none;flex-direction:column;justify-content:center;gap:5px;width:42px;height:42px;border-radius:10px;align-items:center;}
.mobile-toggle span{display:block;width:20px;height:2px;background:var(--ink);border-radius:2px;transition:transform .26s var(--ease),opacity .26s var(--ease);}
.mobile-toggle:hover span{background:var(--brand);}
@media (max-width:959px){
  .desktop-nav{display:none;}
  .mobile-toggle{display:flex;}
  .nav-actions .btn{display:none;}
}

/* ---------- drawer ---------- */
.drawer-mask{
  position:fixed;inset:0;background:rgba(11,23,21,.42);
  opacity:0;visibility:hidden;transition:opacity .28s var(--ease),visibility .28s var(--ease);z-index:90;
}
.drawer-mask.is-open{opacity:1;visibility:visible;}
.mobile-drawer{
  position:fixed;top:0;right:0;bottom:0;width:86vw;max-width:360px;
  background:var(--bg);z-index:95;transform:translateX(102%);
  transition:transform .32s var(--ease);display:flex;flex-direction:column;
  box-shadow:-18px 0 48px -30px rgba(11,23,21,.6);
}
.mobile-drawer.is-open{transform:translateX(0);}
.drawer-head{display:flex;align-items:center;justify-content:space-between;padding:16px 20px;border-bottom:1px solid var(--line);}
.drawer-title{font-size:14px;font-weight:800;color:var(--brand-deep);letter-spacing:.02em;}
.drawer-close{width:36px;height:36px;border-radius:8px;display:flex;align-items:center;justify-content:center;font-size:20px;line-height:1;color:var(--ink-2);}
.drawer-close:hover{background:var(--brand-soft);color:var(--brand-deep);}
.drawer-nav{flex:1 1 auto;overflow-y:auto;padding:6px 0;}
.drawer-nav a{display:block;padding:0 20px;line-height:60px;font-size:18px;font-weight:600;color:var(--ink);border-bottom:1px solid var(--line);}
.drawer-nav a.is-active{color:var(--brand);}
.drawer-foot{padding:18px 20px 26px;border-top:1px solid var(--line);}
.drawer-note{margin-top:12px;font-size:12px;color:var(--ink-2);letter-spacing:.02em;line-height:1.7;}

/* ---------- page head ---------- */
.page-head{padding:40px 0;border-bottom:1px solid var(--line);background:var(--bg);}
@media (min-width:960px){.page-head{padding:64px 0;}}
.crumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:12px;color:var(--ink-2);letter-spacing:.02em;margin-bottom:20px;}
.crumb a{color:var(--ink-2);}
.crumb a:hover{color:var(--brand);}
.crumb .sep{color:var(--line);}
.crumb .now{color:var(--brand);font-weight:700;}
.page-head h1{
  font-size:clamp(2.15rem,5vw,3.2rem);font-weight:800;line-height:1.14;letter-spacing:-.01em;max-width:16em;
}
.page-head .lead{margin-top:18px;font-size:16px;color:var(--ink-2);max-width:44em;}
.page-head .head-tags{display:flex;flex-wrap:wrap;gap:8px;margin-top:22px;}
.badge{
  display:inline-block;padding:4px 10px;border-radius:var(--r-sm);
  background:var(--brand-soft);color:var(--brand-deep);
  font-size:12px;font-weight:700;letter-spacing:.02em;
}
.badge-accent{background:rgba(224,141,60,.14);color:#9C5A18;}

/* ---------- stat strip ---------- */
.stat-strip{padding:40px 0 8px;}
.stat-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:16px;background:var(--bg-2);border:1px solid var(--line);border-radius:var(--r-card);box-shadow:var(--sh-1);padding:24px;}
@media (min-width:768px){.stat-grid{grid-template-columns:repeat(4,1fr);gap:24px;padding:28px 32px;}}
.stat-item{border-left:2px solid var(--brand-soft);padding-left:14px;}
.stat-num{font-size:clamp(1.6rem,3vw,2.15rem);font-weight:800;color:var(--brand);line-height:1.1;letter-spacing:-.02em;}
.stat-num small{font-size:.5em;font-weight:700;margin-left:2px;color:var(--brand);}
.stat-label{margin-top:8px;font-size:12px;color:var(--ink-2);letter-spacing:.02em;}

/* ---------- main layout ---------- */
.section{padding:52px 0;}
@media (min-width:600px){.section{padding:72px 0;}}
@media (min-width:960px){.section{padding:96px 0;}}
.section-head{max-width:52em;margin-bottom:32px;}
.section-head h2{font-size:clamp(1.55rem,2.6vw,2.3rem);line-height:1.28;}
.section-head p{margin-top:14px;color:var(--ink-2);font-size:16px;}

.faq-layout{padding-top:8px;}
.side-col{position:relative;}
.side-inner{position:sticky;top:calc(var(--nav-h) + 20px);}
.side-card{background:var(--bg-2);border:1px solid var(--line);border-radius:var(--r-card);box-shadow:var(--sh-1);padding:22px;}
.side-card + .side-card{margin-top:16px;}
.side-title{font-size:13px;font-weight:800;letter-spacing:.12em;color:var(--brand);text-transform:uppercase;margin-bottom:14px;}
.anchor-list a{
  display:flex;align-items:center;justify-content:space-between;gap:10px;
  padding:11px 12px;border-radius:8px;font-size:15px;font-weight:600;color:var(--ink-2);
  transition:background .24s var(--ease),color .24s var(--ease),padding-left .24s var(--ease);
}
.anchor-list a + a{margin-top:4px;}
.anchor-list a::before{content:"";width:6px;height:6px;border-radius:2px;background:var(--line);flex:0 0 auto;transition:background .24s var(--ease);}
.anchor-list a span{flex:1 1 auto;}
.anchor-list a em{font-style:normal;font-size:12px;color:var(--ink-2);}
.anchor-list a:hover{background:var(--brand-soft);color:var(--brand-deep);padding-left:16px;}
.anchor-list a:hover::before,.anchor-list a.is-active::before{background:var(--brand);}
.anchor-list a.is-active{background:var(--brand-soft);color:var(--brand-deep);}
.side-cta{background:var(--brand-deep);border-radius:var(--r-card);padding:24px;color:var(--inverse);border:1px solid rgba(255,255,255,.12);}
.side-cta h3{color:var(--inverse);font-size:17px;font-weight:700;margin-bottom:10px;}
.side-cta p{font-size:13px;line-height:1.8;color:rgba(242,240,234,.76);margin-bottom:18px;}
@media (max-width:959px){
  .side-inner{position:static;}
  .anchor-list{display:flex;gap:8px;overflow-x:auto;padding-bottom:4px;-webkit-overflow-scrolling:touch;}
  .anchor-list a{flex:0 0 auto;background:var(--bg-2);border:1px solid var(--line);margin:0;padding:9px 14px;font-size:14px;white-space:nowrap;}
  .anchor-list a::before{display:none;}
  .side-card + .side-card{margin-top:12px;}
  .side-cta{margin-top:16px;}
}

/* ---------- faq groups ---------- */
.faq-group{margin-bottom:44px;scroll-margin-top:calc(var(--nav-h) + 24px);}
.faq-group:last-child{margin-bottom:0;}
.group-head{display:flex;align-items:baseline;gap:14px;margin-bottom:6px;}
.group-head h2{font-size:clamp(1.3rem,2vw,1.6rem);line-height:1.3;}
.group-index{font-size:12px;font-weight:800;letter-spacing:.16em;color:var(--accent);}
.group-desc{font-size:14px;color:var(--ink-2);margin-bottom:20px;}
.faq-list{display:flex;flex-direction:column;gap:12px;}
.faq-card{background:var(--bg-2);border:1px solid var(--line);border-radius:12px;box-shadow:var(--sh-1);transition:border-color .26s var(--ease),box-shadow .26s var(--ease);}
.faq-card:hover{border-color:rgba(15,118,106,.35);}
.faq-card.is-open{border-color:rgba(15,118,106,.45);box-shadow:var(--sh-2);}
.faq-q{
  width:100%;display:flex;align-items:flex-start;gap:14px;text-align:left;
  padding:20px 22px;border-radius:12px;transition:color .24s var(--ease);
}
.faq-num{font-size:13px;font-weight:800;color:var(--brand);letter-spacing:.06em;flex:0 0 auto;padding-top:3px;}
.faq-qt{flex:1 1 auto;font-size:16px;font-weight:600;line-height:1.65;color:var(--ink);}
.faq-card.is-open .faq-qt{color:var(--brand-deep);}
.faq-icon{position:relative;flex:0 0 auto;width:20px;height:20px;margin-top:3px;transition:transform .3s var(--ease);}
.faq-icon::before,.faq-icon::after{content:"";position:absolute;left:50%;top:50%;background:var(--brand);border-radius:2px;transform:translate(-50%,-50%);transition:opacity .3s var(--ease);}
.faq-icon::before{width:14px;height:2px;}
.faq-icon::after{width:2px;height:14px;}
.faq-card.is-open .faq-icon{transform:rotate(45deg);}
.faq-a{max-height:0;overflow:hidden;transition:max-height .3s var(--ease);}
.faq-card.is-open .faq-a{max-height:640px;}
.faq-a-inner{padding:0 22px 22px 22px;border-top:1px solid transparent;}
.faq-a-inner p{font-size:15px;line-height:1.9;color:var(--ink-2);padding-top:12px;}
.faq-a-inner ul{margin-top:10px;}
.faq-a-inner li{position:relative;padding-left:18px;font-size:15px;line-height:1.9;color:var(--ink-2);}
.faq-a-inner li::before{content:"";position:absolute;left:0;top:11px;width:6px;height:6px;border-radius:2px;background:var(--brand);}
.faq-a-inner li + li{margin-top:4px;}

/* ---------- help card ---------- */
.help-card{
  display:grid;grid-template-columns:1fr;gap:0;
  border:1px solid var(--line);border-radius:var(--r-lg);overflow:hidden;background:var(--bg-2);box-shadow:var(--sh-1);
}
@media (min-width:860px){.help-card{grid-template-columns:1.35fr 1fr;}}
.help-body{padding:28px 24px 32px;}
@media (min-width:768px){.help-body{padding:40px;}}
.help-body h2{font-size:clamp(1.4rem,2.2vw,1.9rem);line-height:1.3;margin-bottom:14px;}
.help-body p{color:var(--ink-2);font-size:15px;line-height:1.9;}
.help-list{margin:20px 0 26px;}
.help-list li{position:relative;padding-left:20px;font-size:15px;color:var(--ink-2);line-height:1.9;}
.help-list li::before{content:"";position:absolute;left:0;top:12px;width:8px;height:8px;border-radius:2px;background:var(--brand);}
.help-list li + li{margin-top:6px;}
.help-actions{display:flex;flex-wrap:wrap;gap:12px;}
.help-media{position:relative;min-height:220px;background:var(--brand-soft);order:-1;}
@media (min-width:860px){.help-media{order:0;min-height:100%;}}
.help-media img{width:100%;height:100%;object-fit:cover;position:absolute;inset:0;}
.help-media::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(11,23,21,0) 40%,rgba(11,23,21,.35));}
.help-media .media-tag{
  position:absolute;left:16px;top:16px;z-index:2;background:rgba(255,253,249,.94);color:var(--brand-deep);
  font-size:12px;font-weight:700;padding:5px 10px;border-radius:var(--r-sm);letter-spacing:.02em;
}

/* ---------- link cards ---------- */
.link-grid{display:grid;grid-template-columns:1fr;gap:16px;}
@media (min-width:640px){.link-grid{grid-template-columns:repeat(2,1fr);gap:20px;}}
@media (min-width:1024px){.link-grid{grid-template-columns:repeat(4,1fr);gap:24px;}}
.link-card{
  display:flex;flex-direction:column;gap:10px;
  background:var(--bg-2);border:1px solid var(--line);border-radius:var(--r-card);
  padding:24px;box-shadow:var(--sh-1);
  transition:transform .26s var(--ease),box-shadow .26s var(--ease),border-color .26s var(--ease);
}
.link-card:hover{transform:translateY(-4px);box-shadow:var(--sh-2);border-color:rgba(15,118,106,.35);}
.link-card .lc-idx{font-size:12px;font-weight:800;letter-spacing:.16em;color:var(--accent);}
.link-card h3{font-size:1.125rem;line-height:1.5;}
.link-card p{font-size:14px;color:var(--ink-2);line-height:1.8;margin:0;}
.link-card .lc-foot{margin-top:auto;display:inline-flex;align-items:center;gap:6px;font-size:14px;font-weight:700;color:var(--brand);}
.link-card:hover .lc-foot svg{transform:translateX(4px);}
.link-card .lc-foot svg{transition:transform .26s var(--ease);}

/* ---------- cta ---------- */
.cta-band{
  position:relative;overflow:hidden;border-radius:var(--r-lg);
  background:linear-gradient(120deg,var(--brand-deep),#0B1715);
  color:var(--inverse);padding:36px 24px;
}
@media (min-width:768px){.cta-band{padding:56px 48px;}}
.cta-band::before{
  content:"";position:absolute;inset:0;
  background-image:url('/assets/images/backpic/back-2.webp');
  background-size:cover;background-position:center;
  opacity:.16;mix-blend-mode:luminosity;
}
.cta-inner{position:relative;z-index:2;display:grid;grid-template-columns:1fr;gap:26px;align-items:center;}
@media (min-width:900px){.cta-inner{grid-template-columns:1.4fr .9fr;gap:40px;}}
.cta-inner h2{color:var(--inverse);font-size:clamp(1.5rem,2.8vw,2.1rem);line-height:1.3;}
.cta-inner p{color:rgba(242,240,234,.78);font-size:15px;margin-top:14px;line-height:1.9;}
.cta-points{display:flex;flex-wrap:wrap;gap:10px 22px;margin-top:20px;}
.cta-points span{position:relative;padding-left:16px;font-size:14px;color:rgba(242,240,234,.86);}
.cta-points span::before{content:"";position:absolute;left:0;top:9px;width:7px;height:7px;border-radius:2px;background:var(--brand-soft);}
.cta-actions{display:flex;flex-wrap:wrap;gap:12px;}
.cta-note{margin-top:14px;font-size:12px;color:rgba(242,240,234,.62);letter-spacing:.02em;}

/* ---------- footer ---------- */
.site-footer{background:#0B1715;color:var(--inverse);margin-top:0;padding:56px 0 0;}
.footer-grid{display:grid;grid-template-columns:1fr;gap:32px;}
@media (min-width:640px){.footer-grid{grid-template-columns:repeat(2,1fr);}}
@media (min-width:1024px){.footer-grid{grid-template-columns:1.5fr 1fr 1fr 1fr;gap:32px;}}
.footer-logo{display:flex;align-items:center;gap:10px;margin-bottom:16px;}
.footer-logo .brand-main{color:var(--inverse);}
.footer-logo .brand-sub{color:rgba(242,240,234,.6);}
.footer-logo .brand-mark{color:var(--brand-soft);}
.footer-brand p{font-size:14px;line-height:1.9;color:rgba(242,240,234,.72);max-width:32em;}
.footer-badges{display:flex;flex-wrap:wrap;gap:8px;margin-top:18px;}
.footer-badges span{background:rgba(255,255,255,.10);color:rgba(242,240,234,.86);font-size:12px;padding:4px 10px;border-radius:var(--r-sm);}
.footer-col h3{font-size:13px;font-weight:800;letter-spacing:.12em;color:var(--brand-soft);margin-bottom:14px;text-transform:uppercase;}
.footer-col a,.footer-col p{display:block;font-size:14px;color:rgba(242,240,234,.72);line-height:1.9;margin:0 0 6px;transition:color .24s var(--ease),transform .24s var(--ease);}
.footer-col a:hover{color:var(--brand-soft);transform:translateX(2px);}
.footer-bottom{
  display:flex;flex-wrap:wrap;justify-content:space-between;gap:10px;
  margin-top:40px;padding:18px 20px 22px;border-top:1px solid rgba(255,255,255,.12);
  font-size:12px;color:rgba(242,240,234,.6);letter-spacing:.02em;
}
@media (min-width:960px){.footer-bottom{padding-left:32px;padding-right:32px;}}

/* ---------- reveal ---------- */
.reveal{opacity:0;transform:translateY(12px);transition:opacity .42s var(--ease),transform .42s var(--ease);}
.reveal.is-visible{opacity:1;transform:translateY(0);}
@media (prefers-reduced-motion:reduce){
  *{animation:none !important;transition:none !important;}
  .reveal{opacity:1;transform:none;}
  html{scroll-behavior:auto;}
}

/* roulang page: category2 */
:root{
  --brand:#0F766A;
  --brand-deep:#0A4E46;
  --brand-soft:#D7EDE7;
  --accent:#E08D3C;
  --bg:#F6F4EE;
  --bg-2:#FFFDF9;
  --bg-alt:#EFECE3;
  --line:#E2DED4;
  --ink:#121A18;
  --ink-2:#4A5654;
  --paper:#F2F0EA;
  --dark:#0B1715;
  --success:#2F8F5B;
  --warn:#B8792A;
  --r-sm:6px;
  --r-btn:10px;
  --r-card:16px;
  --r-lg:20px;
  --sh-1:0 1px 2px rgba(18,26,24,.04),0 8px 24px -12px rgba(18,26,24,.16);
  --sh-2:0 18px 48px -24px rgba(18,26,24,.30);
  --ease:cubic-bezier(.22,.61,.36,1);
  --nav-h:72px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  background:var(--bg);
  color:var(--ink);
  font-family:"PingFang SC","HarmonyOS Sans SC","Noto Sans SC","Microsoft YaHei",system-ui,sans-serif;
  font-size:16px;
  line-height:1.85;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
h1,h2,h3,h4,h5,h6{font-family:inherit;color:var(--ink);font-weight:700;line-height:1.3;margin:0}
p{margin:0;font-family:inherit}
ul,ol{margin:0;padding:0;list-style:none}
a{color:var(--brand);text-decoration:none;transition:color .24s var(--ease)}
a:hover{color:var(--brand-deep)}
img{display:block;max-width:100%;height:auto;border:0}
button{font:inherit;color:inherit;background:none;border:0;padding:0;cursor:pointer}
input,textarea,select{font-family:inherit}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px;border-radius:4px}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 20px}
@media (min-width:960px){.container{padding:0 32px}}

/* ---------- 顶部导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:80;
  background:rgba(246,244,238,.88);
  -webkit-backdrop-filter:blur(10px);
  backdrop-filter:blur(10px);
  border-bottom:1px solid transparent;
  transition:border-color .3s var(--ease),box-shadow .3s var(--ease);
}
.site-header.is-scrolled{border-bottom-color:var(--line);box-shadow:var(--sh-1)}
.nav-wrap{display:flex;align-items:center;justify-content:space-between;gap:24px;min-height:var(--nav-h)}
.brand-logo{display:inline-flex;align-items:center;gap:10px;color:var(--ink)}
.brand-logo:hover{color:var(--ink)}
.brand-mark{display:inline-flex;width:30px;height:30px;color:var(--brand);flex:0 0 30px}
.brand-mark svg{width:100%;height:100%}
.brand-text{display:flex;flex-direction:column;line-height:1.15}
.brand-main{font-size:17px;font-weight:800;letter-spacing:-.01em;color:var(--ink)}
.brand-sub{font-size:11px;letter-spacing:.18em;color:var(--ink-2)}
.desktop-nav{display:flex;align-items:center;gap:28px}
.nav-link{position:relative;font-size:15px;font-weight:500;color:var(--ink-2);padding:6px 0;transition:color .24s var(--ease)}
.nav-link::after{content:"";position:absolute;left:0;right:0;bottom:-2px;height:2px;background:var(--brand);transform:scaleX(0);transform-origin:left;transition:transform .28s var(--ease)}
.nav-link:hover{color:var(--ink)}
.nav-link:hover::after{transform:scaleX(1)}
.nav-link.is-active{color:var(--brand);font-weight:700}
.nav-link.is-active::after{left:50%;right:auto;width:22px;transform:translateX(-50%) scaleX(1)}
.nav-actions{display:flex;align-items:center;gap:14px}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:46px;padding:0 26px;border-radius:var(--r-btn);border:1px solid transparent;
  font-size:15px;font-weight:700;white-space:nowrap;
  transition:background-color .24s var(--ease),color .24s var(--ease),box-shadow .24s var(--ease),transform .24s var(--ease),border-color .24s var(--ease);
}
.btn .arrow{display:inline-block;transition:transform .24s var(--ease)}
.btn:hover .arrow{transform:translateX(4px)}
.btn-primary{background:var(--brand);color:var(--paper)}
.btn-primary:hover{background:#0b5f55;color:#fff;box-shadow:0 12px 26px -16px rgba(15,118,106,.95)}
.btn-ghost{background:transparent;border-color:var(--brand);color:var(--brand)}
.btn-ghost:hover{background:var(--brand-soft);color:var(--brand-deep)}
.btn-light{background:var(--paper);color:var(--brand-deep)}
.btn-light:hover{background:#fff;color:var(--brand-deep);box-shadow:0 12px 26px -16px rgba(0,0,0,.6)}
.btn-outline-light{background:transparent;border-color:rgba(242,240,234,.5);color:var(--paper)}
.btn-outline-light:hover{background:rgba(242,240,234,.14);border-color:rgba(242,240,234,.85);color:#fff}
.btn-sm{height:40px;padding:0 20px;font-size:14px}
.btn-block{width:100%}

/* ---------- 移动端抽屉 ---------- */
.mobile-toggle{
  display:none;width:44px;height:44px;flex-direction:column;align-items:center;justify-content:center;gap:5px;
  border:1px solid var(--line);border-radius:10px;background:var(--bg-2);
}
.mobile-toggle span{display:block;width:18px;height:2px;border-radius:2px;background:var(--ink);transition:transform .28s var(--ease),opacity .2s var(--ease)}
.drawer-mask{
  position:fixed;inset:0;z-index:90;background:rgba(11,23,21,.45);
  opacity:0;visibility:hidden;transition:opacity .3s var(--ease),visibility .3s var(--ease);
}
.drawer-mask.is-open{opacity:1;visibility:visible}
.mobile-drawer{
  position:fixed;top:0;right:0;z-index:100;
  display:flex;flex-direction:column;
  width:86vw;max-width:360px;height:100%;
  padding:20px 22px 28px;overflow-y:auto;
  background:var(--bg);box-shadow:var(--sh-2);
  transform:translateX(102%);transition:transform .32s var(--ease);
}
.mobile-drawer.is-open{transform:translateX(0)}
.drawer-head{display:flex;align-items:center;justify-content:space-between;gap:12px;padding-bottom:14px;border-bottom:1px solid var(--line)}
.drawer-title{font-size:15px;font-weight:800;color:var(--ink)}
.drawer-close{width:38px;height:38px;display:inline-flex;align-items:center;justify-content:center;border:1px solid var(--line);border-radius:10px;background:var(--bg-2);color:var(--ink-2)}
.drawer-close:hover{color:var(--brand);border-color:var(--brand)}
.drawer-nav{display:flex;flex-direction:column;margin-top:6px}
.drawer-nav a{font-size:18px;font-weight:600;line-height:60px;border-bottom:1px solid var(--line);color:var(--ink)}
.drawer-nav a:hover{color:var(--brand)}
.drawer-nav a.is-active{color:var(--brand)}
.drawer-foot{margin-top:auto;padding-top:24px;display:flex;flex-direction:column;gap:12px}
.drawer-note{font-size:12px;color:var(--ink-2);text-align:center}

/* ---------- 首屏 ---------- */
.page-hero{
  position:relative;color:var(--paper);
  background:linear-gradient(180deg,rgba(11,23,21,.34),rgba(11,23,21,.86)),url(/assets/images/backpic/back-1.png) center/cover no-repeat;
  overflow:hidden;
}
.page-hero .container{position:relative;z-index:2;padding-top:32px;padding-bottom:52px}
@media (min-width:960px){.page-hero .container{padding-top:40px;padding-bottom:76px}}
.breadcrumb{display:flex;align-items:center;gap:8px;font-size:12px;letter-spacing:.02em;color:rgba(242,240,234,.68);margin-bottom:22px}
.breadcrumb a{color:rgba(242,240,234,.68)}
.breadcrumb a:hover{color:#fff}
.breadcrumb .current{color:var(--paper)}
.hero-inner{margin-left:-15px;margin-right:-15px}
.eyebrow{font-size:12px;font-weight:700;letter-spacing:.16em;text-transform:uppercase;color:var(--brand);margin-bottom:10px}
.page-hero .eyebrow{color:var(--brand-soft)}
.page-hero h1{
  font-size:clamp(2.15rem,5vw,3.8rem);font-weight:800;line-height:1.14;letter-spacing:-.01em;
  color:var(--paper);max-width:18em;
}
.hero-lead{margin-top:16px;font-size:16px;line-height:1.8;color:rgba(242,240,234,.84);max-width:36ch}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:28px}
.hero-meta{display:flex;flex-wrap:wrap;gap:8px 20px;margin-top:26px;font-size:13px;color:rgba(242,240,234,.78)}
.hero-meta li{position:relative;padding-left:14px}
.hero-meta li::before{content:"";position:absolute;left:0;top:.7em;width:6px;height:6px;border-radius:1px;background:var(--brand-soft)}
.hero-thumb{margin:24px 0 0;max-width:520px;border-radius:var(--r-lg);overflow:hidden;border:1px solid rgba(255,255,255,.16);box-shadow:var(--sh-2)}
.hero-thumb img{width:100%;aspect-ratio:16/10;object-fit:cover}
@media (min-width:1024px){.hero-thumb{margin-top:0;max-width:none}}

/* ---------- 通用板块 ---------- */
.section{padding:52px 0}
@media (min-width:600px){.section{padding:72px 0}}
@media (min-width:960px){.section{padding:96px 0}}
.section-alt{background:var(--bg-alt)}
.section-head{display:flex;flex-wrap:wrap;align-items:flex-end;justify-content:space-between;gap:20px;margin-bottom:32px}
.section-head h2{font-size:clamp(1.55rem,2.6vw,2.3rem);font-weight:700;line-height:1.28}
.section-desc{margin-top:10px;font-size:15px;color:var(--ink-2);max-width:56ch;line-height:1.8}
.text-link{display:inline-flex;align-items:center;gap:6px;font-size:14px;font-weight:700;color:var(--ink);position:relative}
.text-link span{transition:transform .24s var(--ease)}
.text-link::after{content:"";position:absolute;left:0;bottom:-3px;width:100%;height:2px;background:var(--brand);transform:scaleX(0);transform-origin:left;transition:transform .28s var(--ease)}
.text-link:hover{color:var(--brand)}
.text-link:hover::after{transform:scaleX(1)}
.text-link:hover span{transform:translateX(4px)}

/* ---------- 筛选条 ---------- */
.filter-bar{
  display:flex;gap:6px;overflow-x:auto;padding:2px 0 10px;margin-bottom:28px;
  border-bottom:1px solid var(--line);-webkit-overflow-scrolling:touch;
}
.filter-tab{
  position:relative;flex:0 0 auto;padding:10px 14px;border-radius:8px;
  font-size:15px;font-weight:500;color:var(--ink-2);
  transition:color .24s var(--ease),background-color .24s var(--ease);
}
.filter-tab:hover{color:var(--ink);background:rgba(15,118,106,.07)}
.filter-tab.is-active{color:var(--brand);font-weight:700}
.filter-tab.is-active::after{content:"";position:absolute;left:14px;right:14px;bottom:0;height:2px;border-radius:2px;background:var(--brand)}

/* ---------- 内容卡网格 ---------- */
.content-grid{display:grid;grid-template-columns:1fr;gap:24px}
@media (min-width:768px){.content-grid{grid-template-columns:repeat(2,1fr)}}
@media (min-width:1024px){.content-grid{grid-template-columns:repeat(3,1fr);gap:32px}}
.content-card{
  display:flex;flex-direction:column;height:100%;
  background:var(--bg-2);border:1px solid var(--line);border-radius:var(--r-card);
  overflow:hidden;box-shadow:var(--sh-1);
  transition:transform .28s var(--ease),box-shadow .28s var(--ease),border-color .28s var(--ease);
}
.content-card:hover{transform:translateY(-4px);box-shadow:var(--sh-2);border-color:rgba(15,118,106,.35)}
.content-card.is-hidden{display:none}
.card-media{position:relative;overflow:hidden;background:var(--brand-soft);border-bottom:1px solid var(--line)}
.card-media img{width:100%;aspect-ratio:16/10;object-fit:cover;transition:transform .3s var(--ease)}
.content-card:hover .card-media img{transform:scale(1.04)}
.badge{
  display:inline-flex;align-items:center;font-size:12px;font-weight:700;letter-spacing:.02em;
  padding:4px 10px;border-radius:var(--r-sm);background:var(--brand-soft);color:var(--brand-deep);
}
.card-media .badge{
  position:absolute;top:12px;left:12px;
  background:rgba(11,23,21,.78);color:var(--paper);
  -webkit-backdrop-filter:blur(4px);backdrop-filter:blur(4px);
}
.card-body{display:flex;flex-direction:column;gap:10px;padding:24px;flex:1}
.tag{
  display:inline-flex;align-self:flex-start;font-size:12px;font-weight:700;letter-spacing:.04em;
  padding:4px 10px;border-radius:var(--r-sm);background:var(--brand-soft);color:var(--brand-deep);
}
.card-body h3{
  font-size:1.125rem;font-weight:700;line-height:1.5;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.card-body p{
  font-size:15px;line-height:1.8;color:var(--ink-2);
  display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden;
}
.card-foot{
  display:flex;align-items:center;justify-content:space-between;gap:12px;
  margin-top:auto;padding-top:14px;border-top:1px solid var(--line);
  font-size:13px;color:var(--ink-2);letter-spacing:.02em;
}
.card-link{display:inline-flex;align-items:center;gap:4px;font-size:13px;font-weight:700;color:var(--brand)}
.card-link span{transition:transform .24s var(--ease)}
.card-link:hover span{transform:translateX(4px)}

/* ---------- 分页 ---------- */
.pagination{display:flex;flex-wrap:wrap;justify-content:center;align-items:center;gap:8px;margin-top:40px}
.page-btn{
  min-width:40px;height:40px;padding:0 14px;border-radius:8px;
  border:1px solid var(--line);background:var(--bg-2);color:var(--ink-2);
  font-size:14px;font-weight:600;
  transition:border-color .24s var(--ease),color .24s var(--ease),background-color .24s var(--ease);
}
.page-btn:hover{border-color:var(--brand);color:var(--brand)}
.page-btn.is-current{background:var(--brand);border-color:var(--brand);color:var(--paper)}

/* ---------- 数据条 ---------- */
.stat-strip{
  display:grid;grid-template-columns:repeat(2,1fr);gap:24px;
  padding:32px 24px;background:var(--bg-2);
  border:1px solid var(--line);border-radius:var(--r-lg);box-shadow:var(--sh-1);
}
@media (min-width:768px){.stat-strip{grid-template-columns:repeat(4,1fr);gap:32px;padding:40px 36px}}
.stat-item strong{
  display:block;font-size:clamp(2rem,4vw,2.8rem);font-weight:800;line-height:1.1;
  color:var(--brand);font-variant-numeric:tabular-nums;letter-spacing:-.02em;
}
.stat-item span{display:block;margin-top:6px;font-size:13px;color:var(--ink-2);line-height:1.6}

/* ---------- 图文说明 ---------- */
.split-inner{margin-left:-15px;margin-right:-15px}
.soft-figure{
  margin:0;overflow:hidden;border-radius:var(--r-card);
  border:1px solid var(--line);background:var(--brand-soft);box-shadow:var(--sh-1);
}
.soft-figure img{width:100%;aspect-ratio:16/10;object-fit:cover;transition:transform .3s var(--ease)}
.soft-figure:hover img{transform:scale(1.04)}
.split-copy{padding-top:8px}
@media (min-width:1024px){.split-copy{padding:0 0 0 24px}}
.step-list{display:flex;flex-direction:column;gap:24px;margin-top:24px}
.step-list li{display:flex;gap:16px;align-items:flex-start}
.step-num{
  flex:0 0 auto;font-size:1.45rem;font-weight:800;line-height:1.25;
  color:var(--accent);font-variant-numeric:tabular-nums;
}
.step-list h3{font-size:1.0625rem;font-weight:700;line-height:1.5;margin-bottom:4px}
.step-list p{font-size:15px;line-height:1.8;color:var(--ink-2)}

/* ---------- FAQ ---------- */
.faq-list{display:flex;flex-direction:column;gap:12px}
.faq-item{
  background:var(--bg-2);border:1px solid var(--line);border-radius:12px;
  transition:border-color .24s var(--ease),box-shadow .24s var(--ease);
}
.faq-item.is-open{border-color:rgba(15,118,106,.35);box-shadow:var(--sh-1)}
.faq-q{
  display:flex;align-items:center;gap:14px;width:100%;
  padding:18px 20px;text-align:left;font-size:16px;font-weight:600;color:var(--ink);line-height:1.6;
}
.faq-q:hover{color:var(--brand)}
.faq-index{flex:0 0 auto;font-size:14px;font-weight:700;color:var(--brand)}
.faq-icon{position:relative;flex:0 0 16px;width:16px;height:16px;margin-left:auto}
.faq-icon::before,.faq-icon::after{content:"";position:absolute;background:var(--brand);border-radius:2px;transition:transform .3s var(--ease)}
.faq-icon::before{left:0;top:7px;width:16px;height:2px}
.faq-icon::after{left:7px;top:0;width:2px;height:16px}
.faq-item.is-open .faq-icon::after{transform:rotate(90deg)}
.faq-a{max-height:0;overflow:hidden;transition:max-height .3s var(--ease)}
.faq-item.is-open .faq-a{max-height:420px}
.faq-a p{padding:0 20px 20px 52px;font-size:15px;line-height:1.9;color:var(--ink-2)}

/* ---------- 转化区 ---------- */
.cta-block{
  position:relative;overflow:hidden;border-radius:var(--r-lg);
  background:linear-gradient(135deg,var(--brand-deep),var(--dark));
  color:var(--paper);padding:40px 24px;
}
.cta-block::before{
  content:"";position:absolute;inset:0;
  background:url(/assets/images/backpic/back-2.webp) center/cover no-repeat;
  opacity:.16;
}
.cta-inner{position:relative;z-index:2;display:grid;gap:32px}
@media (min-width:900px){.cta-inner{grid-template-columns:1.15fr .85fr;align-items:center;gap:48px}.cta-block{padding:56px 48px}}
.cta-block h2{font-size:clamp(1.55rem,2.6vw,2.15rem);color:var(--paper);line-height:1.3}
.eyebrow-light{color:var(--brand-soft)}
.cta-points{display:flex;flex-direction:column;gap:10px;margin-top:20px}
.cta-points li{position:relative;padding-left:18px;font-size:15px;color:rgba(242,240,234,.84)}
.cta-points li::before{content:"";position:absolute;left:0;top:.68em;width:8px;height:8px;background:var(--brand-soft);border-radius:1px}
.cta-form{display:flex;flex-direction:column;gap:14px}
.field label{display:block;font-size:14px;font-weight:600;margin-bottom:6px;color:rgba(242,240,234,.9)}
.field input{
  width:100%;height:46px;padding:0 14px;border-radius:var(--r-btn);
  border:1px solid rgba(255,255,255,.24);background:rgba(255,255,255,.08);
  color:var(--paper);font-size:15px;transition:border-color .24s var(--ease),box-shadow .24s var(--ease);
}
.field input::placeholder{color:rgba(242,240,234,.5)}
.field input:focus{outline:none;border-color:var(--brand-soft);box-shadow:0 0 0 3px rgba(215,237,231,.18)}
.form-note{font-size:13px;line-height:1.7;color:rgba(242,240,234,.66);min-height:20px}
.form-note.is-error{color:#F0B27A}
.form-note.is-ok{color:#9BD8BC}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--dark);color:var(--paper);padding-top:64px}
.footer-grid{display:grid;grid-template-columns:1fr;gap:32px;padding-bottom:48px}
@media (min-width:768px){.footer-grid{grid-template-columns:repeat(2,1fr)}}
@media (min-width:1024px){.footer-grid{grid-template-columns:1.4fr 1fr 1fr 1fr;gap:32px}}
.footer-logo .brand-main{color:var(--paper)}
.footer-logo .brand-sub{color:rgba(242,240,234,.6)}
.footer-logo .brand-mark{color:var(--brand-soft)}
.footer-brand p{margin-top:14px;font-size:14px;line-height:1.8;color:rgba(242,240,234,.72);max-width:36ch}
.footer-badges{display:flex;flex-wrap:wrap;gap:8px;margin-top:16px}
.footer-badges span{font-size:12px;padding:4px 10px;border-radius:var(--r-sm);background:rgba(255,255,255,.14);color:var(--paper)}
.footer-col h3{font-size:15px;font-weight:700;margin-bottom:14px;color:var(--paper)}
.footer-col a,.footer-col p{display:block;font-size:14px;line-height:2;color:rgba(242,240,234,.72);transition:color .24s var(--ease),transform .24s var(--ease)}
.footer-col a:hover{color:var(--brand-soft);transform:translateX(2px)}
.footer-bottom{
  display:flex;flex-wrap:wrap;gap:10px;justify-content:space-between;
  padding:18px 0;border-top:1px solid rgba(255,255,255,.12);
  font-size:12px;color:rgba(242,240,234,.6);letter-spacing:.02em;
}

/* ---------- 动效 ---------- */
.js-ready .reveal{opacity:0;transform:translateY(12px);transition:opacity .55s var(--ease),transform .55s var(--ease)}
.js-ready .reveal.is-visible{opacity:1;transform:none}

/* ---------- 断点 ---------- */
@media (max-width:959px){
  .desktop-nav{display:none}
  .mobile-toggle{display:flex}
  .nav-actions .btn-sm{display:none}
}
@media (max-width:599px){
  .page-hero h1{font-size:clamp(1.95rem,8vw,2.4rem)}
  .hero-actions .btn{width:100%}
  .card-body{padding:18px}
  .faq-a p{padding-left:20px}
  .pagination .page-btn:not(.is-current):not(.page-next){display:none}
  .pagination .page-btn:first-child{display:inline-flex}
}
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  *,*::before,*::after{animation-duration:.01ms !important;transition-duration:.01ms !important}
  .js-ready .reveal{opacity:1;transform:none}
}

/* roulang page: category4 */
:root{
  --brand:#0F766A;
  --brand-deep:#0A4E46;
  --brand-soft:#D7EDE7;
  --accent:#E08D3C;
  --bg:#F6F4EE;
  --bg-2:#FFFDF9;
  --line:#E2DED4;
  --ink:#121A18;
  --ink-2:#4A5654;
  --paper:#F2F0EA;
  --success:#2F8F5B;
  --warn:#B8792A;
  --r-sm:6px;
  --r-md:10px;
  --r-lg:16px;
  --r-xl:20px;
  --sh-1:0 1px 2px rgba(18,26,24,.04),0 8px 24px -12px rgba(18,26,24,.16);
  --sh-2:0 18px 48px -24px rgba(18,26,24,.30);
  --ease:cubic-bezier(.22,.61,.36,1);
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:"PingFang SC","HarmonyOS Sans SC","Noto Sans SC","Microsoft YaHei",system-ui,sans-serif;
  font-size:16px;
  line-height:1.85;
  color:var(--ink);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{max-width:100%;display:block;height:auto}
a{color:inherit;text-decoration:none;transition:color .24s var(--ease)}
a:hover{color:var(--brand)}
button{font-family:inherit}
h1,h2,h3,h4,h5,h6,p,ul,ol,figure{margin:0}
h1,h2,h3,h4{font-weight:700;line-height:1.28;letter-spacing:-.01em}
h2{font-size:clamp(1.55rem,2.6vw,2.3rem)}
h3{font-size:1.125rem;line-height:1.5}
ul,ol{padding-left:0;list-style:none}
input,select,textarea{font-family:inherit}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 20px}
@media(min-width:960px){.container{padding:0 32px}}

/* ---------- header ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(246,244,238,.88);
  backdrop-filter:blur(10px);
  -webkit-backdrop-filter:blur(10px);
  border-bottom:1px solid transparent;
  transition:border-color .28s var(--ease),box-shadow .28s var(--ease);
}
.site-header.is-scrolled{border-bottom-color:var(--line);box-shadow:var(--sh-1)}
.nav-wrap{display:flex;align-items:center;justify-content:space-between;gap:20px;height:72px}
.brand-logo{display:inline-flex;align-items:center;gap:10px;color:var(--brand);flex:0 0 auto}
.brand-mark{width:30px;height:30px;display:grid;place-items:center;flex:0 0 auto}
.brand-mark svg{width:30px;height:30px;display:block}
.brand-text{display:flex;flex-direction:column;line-height:1.15}
.brand-main{font-size:17px;font-weight:800;color:var(--ink);letter-spacing:-.01em}
.brand-sub{font-size:11px;letter-spacing:.18em;color:var(--ink-2);margin-top:3px}
.desktop-nav{display:none;align-items:center;gap:28px}
.nav-link{position:relative;font-size:15px;font-weight:500;color:var(--ink-2);padding:6px 0;white-space:nowrap}
.nav-link::after{
  content:"";position:absolute;left:50%;bottom:-6px;width:22px;height:2px;border-radius:2px;
  background:var(--brand);transform:translateX(-50%) scaleX(0);transform-origin:center;
  transition:transform .28s var(--ease);
}
.nav-link:hover{color:var(--ink)}
.nav-link:hover::after{transform:translateX(-50%) scaleX(1)}
.nav-link.is-active{color:var(--brand);font-weight:700}
.nav-link.is-active::after{transform:translateX(-50%) scaleX(1)}
.nav-actions{display:flex;align-items:center;gap:12px;flex:0 0 auto}
.mobile-toggle{
  display:inline-flex;flex-direction:column;align-items:center;justify-content:center;gap:5px;
  width:42px;height:42px;border:1px solid var(--line);background:var(--bg-2);
  border-radius:10px;cursor:pointer;padding:0;transition:border-color .24s var(--ease),background .24s var(--ease);
}
.mobile-toggle span{display:block;width:18px;height:2px;background:var(--ink);border-radius:2px}
.mobile-toggle:hover{border-color:var(--brand);background:var(--brand-soft)}
@media(min-width:960px){
  .desktop-nav{display:flex}
  .mobile-toggle{display:none}
}
@media(min-width:960px) and (max-width:1140px){
  .desktop-nav{gap:18px}
  .nav-link{font-size:14px}
  .brand-main{font-size:15px}
  .brand-sub{font-size:10px}
}

/* ---------- drawer ---------- */
.drawer-mask{position:fixed;inset:0;background:rgba(11,23,21,.52);opacity:0;visibility:hidden;transition:opacity .3s var(--ease),visibility .3s var(--ease);z-index:85}
.drawer-mask.is-open{opacity:1;visibility:visible}
.mobile-drawer{
  position:fixed;top:0;right:0;height:100%;width:86vw;max-width:360px;
  background:var(--bg);z-index:90;transform:translateX(102%);
  transition:transform .3s var(--ease);
  display:flex;flex-direction:column;padding:20px 20px 28px;overflow-y:auto;
  box-shadow:-24px 0 48px -32px rgba(11,23,21,.5);
}
.mobile-drawer.is-open{transform:translateX(0)}
.drawer-head{display:flex;align-items:center;justify-content:space-between;gap:12px;padding-bottom:16px;border-bottom:1px solid var(--line)}
.drawer-close{
  width:38px;height:38px;border:1px solid var(--line);background:var(--bg-2);border-radius:10px;
  cursor:pointer;position:relative;flex:0 0 auto;padding:0;
}
.drawer-close::before,.drawer-close::after{
  content:"";position:absolute;left:50%;top:50%;width:16px;height:2px;background:var(--ink);border-radius:2px;
}
.drawer-close::before{transform:translate(-50%,-50%) rotate(45deg)}
.drawer-close::after{transform:translate(-50%,-50%) rotate(-45deg)}
.drawer-nav{display:flex;flex-direction:column;margin:8px 0 20px}
.drawer-nav a{
  font-size:18px;font-weight:600;line-height:60px;color:var(--ink);
  border-bottom:1px solid var(--line);display:block;
}
.drawer-nav a.is-active{color:var(--brand)}
.drawer-cta{margin-top:auto}
.drawer-note{font-size:13px;color:var(--ink-2);margin-top:14px;line-height:1.7}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:46px;padding:0 26px;border-radius:var(--r-md);border:1px solid transparent;
  font-size:15px;font-weight:700;cursor:pointer;text-align:center;line-height:1;
  transition:background .26s var(--ease),color .26s var(--ease),border-color .26s var(--ease),transform .26s var(--ease),box-shadow .26s var(--ease);
}
.btn-arrow{display:inline-block;transition:transform .26s var(--ease);font-size:14px}
.btn:hover .btn-arrow{transform:translateX(4px)}
.btn-primary{background:var(--brand);color:#F6F4EE;box-shadow:0 8px 18px -12px rgba(15,118,106,.95)}
.btn-primary:hover{background:#0C655B;color:#F6F4EE;transform:translateY(-1px);box-shadow:0 12px 22px -12px rgba(15,118,106,.85)}
.btn-ghost{background:transparent;color:var(--brand);border-color:var(--brand)}
.btn-ghost:hover{background:var(--brand-soft);color:var(--brand-deep);border-color:var(--brand-deep)}
.btn-light{background:#F6F4EE;color:var(--brand-deep);border-color:transparent}
.btn-light:hover{background:#FFFFFF;color:var(--brand-deep);transform:translateY(-1px)}
.btn-sm{height:40px;padding:0 20px;font-size:14px}
.btn-block{width:100%}
.btn:active{transform:translateY(0)}

/* ---------- page head ---------- */
.page-head{
  padding:40px 0 36px;
  background:linear-gradient(180deg,#FBF9F4 0%,var(--bg) 100%);
  border-bottom:1px solid var(--line);
}
@media(min-width:960px){.page-head{padding:64px 0 56px}}
.breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:12px;letter-spacing:.02em;color:var(--ink-2);margin-bottom:18px}
.breadcrumb a:hover{color:var(--brand)}
.breadcrumb .sep{color:#C9C4B8}
.breadcrumb .current{color:var(--ink);font-weight:600}
.page-head h1{font-size:clamp(1.9rem,4.4vw,3rem);font-weight:800;line-height:1.16;letter-spacing:-.01em}
.page-lead{margin-top:16px;font-size:16px;color:var(--ink-2);max-width:640px}
.page-head .tag{margin-bottom:16px}
@media(max-width:599px){
  .page-lead{font-size:15px;line-height:1.8}
}

/* ---------- section basics ---------- */
.section{padding:52px 0}
@media(min-width:768px){.section{padding:72px 0}}
@media(min-width:960px){.section{padding:96px 0}}
.section--paper{background:#FBFAF5}
.section--tight{padding:40px 0}
@media(min-width:960px){.section--tight{padding:56px 0}}
.section-head{max-width:720px;margin-bottom:32px}
.section-head p{margin-top:12px;color:var(--ink-2);font-size:15px}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;font-size:12px;font-weight:700;
  letter-spacing:.16em;color:var(--brand);text-transform:uppercase;margin-bottom:12px;
}
.eyebrow::before{content:"";width:18px;height:2px;background:var(--brand);border-radius:2px}
.tag{
  display:inline-block;background:var(--brand-soft);color:var(--brand);
  font-size:12px;font-weight:700;padding:4px 10px;border-radius:var(--r-sm);line-height:1.6;
}

/* ---------- flow ---------- */
.flow-track{--grid-column-gutter:24px}
.flow-cell{padding-bottom:24px}
@media(min-width:768px){.flow-cell{padding-bottom:0}}
.flow-step{
  position:relative;height:100%;background:var(--bg-2);border:1px solid var(--line);
  border-radius:var(--r-lg);padding:24px;box-shadow:var(--sh-1);
  transition:transform .28s var(--ease),box-shadow .28s var(--ease),border-color .28s var(--ease);
}
.flow-step:hover{transform:translateY(-4px);box-shadow:var(--sh-2);border-color:rgba(15,118,106,.35)}
.flow-step::after{
  content:"";position:absolute;top:46px;right:-26px;width:24px;border-top:2px dashed #CFCABD;
  display:none;
}
@media(min-width:1024px){
  .flow-step::after{display:block}
  .flow-cell:last-child .flow-step::after{display:none}
}
.step-num{
  width:44px;height:44px;border-radius:50%;background:var(--brand-soft);color:var(--brand);
  display:grid;place-items:center;font-size:15px;font-weight:800;letter-spacing:.02em;margin-bottom:16px;
  transition:background .28s var(--ease),color .28s var(--ease);
}
.flow-step:hover .step-num{background:var(--brand);color:#F6F4EE}
.flow-step h3{margin-bottom:8px;font-size:1.0625rem}
.flow-step p{font-size:14.5px;color:var(--ink-2);line-height:1.8;margin:0}

/* ---------- media + notes ---------- */
.media-frame{
  position:relative;overflow:hidden;border-radius:var(--r-xl);border:1px solid var(--line);
  background:var(--brand-soft);aspect-ratio:16/10;box-shadow:var(--sh-1);
}
.media-frame img{width:100%;height:100%;object-fit:cover;transition:transform .32s var(--ease)}
.media-frame:hover img{transform:scale(1.04)}
.media-caption{font-size:13px;color:var(--ink-2);margin-top:12px;letter-spacing:.02em}
.notes{display:grid;gap:16px;margin-top:20px}
.notes li{position:relative;padding-left:18px;font-size:15px;color:var(--ink-2);line-height:1.85}
.notes li::before{
  content:"";position:absolute;left:0;top:.5em;bottom:.5em;width:2px;
  background:var(--brand);border-radius:2px;
}
.notes li strong{color:var(--ink);font-weight:700}
.side-title{font-size:1.35rem;font-weight:700;line-height:1.4;margin-bottom:8px}

/* ---------- info cards ---------- */
.info-card{
  height:100%;background:var(--bg-2);border:1px solid var(--line);border-radius:var(--r-lg);
  padding:22px;box-shadow:var(--sh-1);
  transition:transform .28s var(--ease),box-shadow .28s var(--ease),border-color .28s var(--ease);
}
.info-card:hover{transform:translateY(-4px);box-shadow:var(--sh-2);border-color:rgba(15,118,106,.35)}
.info-card .num{
  font-size:1.5rem;font-weight:800;color:var(--brand);line-height:1.2;letter-spacing:-.01em;
}
.info-card h3{font-size:1rem;margin:6px 0 6px;font-weight:700}
.info-card p{font-size:14px;color:var(--ink-2);line-height:1.8;margin:0}
.info-cell{padding-bottom:24px}
@media(min-width:1024px){.info-cell{padding-bottom:0}}

/* ---------- form ---------- */
.form-card{
  background:var(--bg-2);border:1px solid var(--line);border-radius:var(--r-xl);
  padding:24px;box-shadow:var(--sh-1);max-width:640px;margin:0 auto;
}
@media(min-width:768px){.form-card{padding:36px}}
.form-card h2{font-size:clamp(1.4rem,2.2vw,1.75rem);margin-bottom:8px}
.form-intro{font-size:14.5px;color:var(--ink-2);margin-bottom:24px;line-height:1.8}
.field{margin-bottom:18px}
.field label{display:block;font-size:14px;font-weight:600;color:var(--ink);margin-bottom:8px}
.field .req{color:var(--accent);margin-left:4px}
.field input,.field select,.field textarea{
  width:100%;background:var(--bg-2);border:1px solid var(--line);border-radius:var(--r-md);
  font-size:15px;color:var(--ink);transition:border-color .24s var(--ease),box-shadow .24s var(--ease);
}
.field input,.field select{height:46px;padding:0 14px}
.field textarea{min-height:96px;padding:12px 14px;line-height:1.75;resize:vertical}
.field select{
  appearance:none;-webkit-appearance:none;
  background-image:url("data:image/svg+xml;charset=utf8,%3Csvg xmlns='http://www.w3.org/2000/svg' width='14' height='9' viewBox='0 0 14 9'%3E%3Cpath d='M1 1l6 6 6-6' fill='none' stroke='%234A5654' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E");
  background-repeat:no-repeat;background-position:right 14px center;padding-right:38px;
}
.field input::placeholder,.field textarea::placeholder{color:#9AA29F}
.field input:focus,.field select:focus,.field textarea:focus{
  outline:none;border-color:var(--brand);box-shadow:0 0 0 3px rgba(15,118,106,.14);
}
.form-hint{font-size:13px;color:var(--ink-2);margin-top:8px;line-height:1.7}
.form-feedback{
  min-height:20px;margin-top:16px;font-size:14px;line-height:1.7;
  display:none;
}
.form-feedback.is-show{display:block}
.form-feedback.is-ok{color:var(--success)}
.form-feedback.is-err{color:var(--warn)}
.form-card .btn-block{margin-top:6px}

/* ---------- faq ---------- */
.faq-list{max-width:860px}
.faq-item{
  background:var(--bg-2);border:1px solid var(--line);border-radius:12px;
  margin-bottom:12px;overflow:hidden;
  transition:border-color .26s var(--ease),box-shadow .26s var(--ease);
}
.faq-item:hover{border-color:rgba(15,118,106,.3)}
.faq-item.is-open{border-color:rgba(15,118,106,.35);box-shadow:var(--sh-1)}
.faq-q{
  width:100%;display:flex;align-items:center;gap:14px;padding:18px 20px;
  background:none;border:0;text-align:left;cursor:pointer;
  font-size:16px;font-weight:600;color:var(--ink);line-height:1.6;
}
.faq-num{color:var(--brand);font-weight:700;font-size:14px;flex:0 0 auto;letter-spacing:.04em}
.faq-q .qtext{flex:1 1 auto}
.faq-icon{position:relative;width:16px;height:16px;flex:0 0 auto;transition:transform .28s var(--ease)}
.faq-icon::before,.faq-icon::after{content:"";position:absolute;background:var(--brand);border-radius:2px}
.faq-icon::before{left:0;top:7px;width:16px;height:2px}
.faq-icon::after{left:7px;top:0;width:2px;height:16px}
.faq-item.is-open .faq-icon{transform:rotate(45deg)}
.faq-a{max-height:0;overflow:hidden;transition:max-height .3s var(--ease)}
.faq-a-inner{padding:12px 20px 20px 20px;font-size:15px;line-height:1.9;color:var(--ink-2)}

/* ---------- cta band ---------- */
.cta-band{
  position:relative;overflow:hidden;border-radius:var(--r-xl);
  background:linear-gradient(135deg,var(--brand-deep) 0%,#0B1715 100%);
  color:var(--paper);padding:32px 24px;
}
@media(min-width:768px){.cta-band{padding:48px}}
.cta-band::before{
  content:"";position:absolute;inset:0;
  background:url('/assets/images/backpic/back-2.webp') center/cover no-repeat;
  opacity:.16;pointer-events:none;
}
.cta-band > *{position:relative;z-index:1}
.cta-band h2{color:#F6F4EE;font-size:clamp(1.5rem,2.6vw,2.05rem)}
.cta-band p{color:rgba(242,240,234,.82);font-size:15px;margin-top:12px;line-height:1.85}
.cta-points{display:grid;gap:10px;margin-top:22px}
.cta-points li{position:relative;padding-left:18px;font-size:14.5px;color:rgba(242,240,234,.85)}
.cta-points li::before{
  content:"";position:absolute;left:0;top:.62em;width:8px;height:8px;border-radius:2px;
  background:var(--accent);
}
.cta-actions{margin-top:26px;display:flex;flex-wrap:wrap;gap:12px}
.cta-note{font-size:13px;color:rgba(242,240,234,.62);margin-top:16px;letter-spacing:.02em}
.cta-band .btn:focus-visible{outline:2px solid #F6F4EE;outline-offset:3px}

/* ---------- footer ---------- */
.site-footer{background:#0B1715;color:#F2F0EA;padding:56px 0 0;margin-top:0}
.footer-grid{display:grid;grid-template-columns:1fr;gap:32px;padding-bottom:40px}
@media(min-width:768px){.footer-grid{grid-template-columns:repeat(2,1fr)}}
@media(min-width:1024px){.footer-grid{grid-template-columns:1.5fr 1fr 1fr 1.2fr}}
.footer-logo{color:var(--brand-soft)}
.footer-logo .brand-main{color:#F2F0EA}
.footer-logo .brand-sub{color:rgba(242,240,234,.6)}
.footer-brand p{margin-top:16px;font-size:14px;line-height:1.85;color:rgba(242,240,234,.72);max-width:340px}
.footer-badges{display:flex;flex-wrap:wrap;gap:8px;margin-top:18px}
.footer-badges span{
  font-size:12px;padding:4px 10px;border-radius:var(--r-sm);
  background:rgba(255,255,255,.12);color:#F2F0EA;
}
.footer-col h3{font-size:14px;font-weight:700;color:#F2F0EA;margin-bottom:16px;letter-spacing:.04em}
.footer-col a,.footer-col p{
  display:block;font-size:14px;color:rgba(242,240,234,.72);line-height:2.1;
  transition:color .24s var(--ease),transform .24s var(--ease);
}
.footer-col a:hover{color:var(--brand-soft);transform:translateX(2px)}
.footer-bottom{
  display:flex;flex-wrap:wrap;gap:10px;justify-content:space-between;align-items:center;
  border-top:1px solid rgba(255,255,255,.12);padding-top:20px;padding-bottom:24px;
  font-size:12px;letter-spacing:.02em;color:rgba(242,240,234,.55);
}

/* ---------- reveal ---------- */
.reveal{opacity:0;transform:translateY(12px);transition:opacity .6s var(--ease),transform .6s var(--ease)}
.reveal.is-in{opacity:1;transform:none}
@media(prefers-reduced-motion:reduce){
  .reveal{opacity:1;transform:none;transition:none}
  *{animation-duration:.001ms !important;transition-duration:.001ms !important;scroll-behavior:auto !important}
}
@media(max-width:599px){
  .flow-step{padding:18px}
  .form-card{padding:20px}
  .faq-q{padding:16px;font-size:15px;gap:10px}
  .faq-a-inner{padding:10px 16px 18px}
  .cta-band{padding:28px 20px}
}

/* roulang page: category5 */
:root{
  --brand:#0F766A;
  --brand-deep:#0A4E46;
  --brand-soft:#D7EDE7;
  --accent:#E08D3C;
  --bg:#F6F4EE;
  --bg-2:#FFFDF9;
  --line:#E2DED4;
  --ink:#121A18;
  --ink-2:#4A5654;
  --inverse:#F2F0EA;
  --success:#2F8F5B;
  --warn:#B8792A;
  --r-btn:10px;
  --r-card:16px;
  --r-lg:20px;
  --r-tag:6px;
  --sh-1:0 1px 2px rgba(18,26,24,.04), 0 8px 24px -12px rgba(18,26,24,.16);
  --sh-2:0 18px 48px -24px rgba(18,26,24,.30);
  --ease:cubic-bezier(.22,.61,.36,1);
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:"PingFang SC","HarmonyOS Sans SC","Noto Sans SC","Microsoft YaHei",system-ui,sans-serif;
  font-size:16px;
  line-height:1.85;
  color:var(--ink);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
body.no-scroll{overflow:hidden}
img{max-width:100%;display:block}
a{color:var(--brand);text-decoration:none}
a:hover{color:var(--brand-deep)}
button{font-family:inherit}
h1,h2,h3,h4{margin:0;color:var(--ink);letter-spacing:-.01em;line-height:1.3}
p{margin:0 0 1.05em}
ul,ol{margin:0;padding:0;list-style:none}
figure{margin:0}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px;border-radius:4px}
.container{width:100%;max-width:1200px;margin:0 auto;padding-left:20px;padding-right:20px}
@media(min-width:960px){.container{padding-left:32px;padding-right:32px}}

/* ---------- Header ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(246,244,238,.88);
  -webkit-backdrop-filter:blur(10px);
  backdrop-filter:blur(10px);
  border-bottom:1px solid transparent;
  transition:box-shadow .28s var(--ease),border-color .28s var(--ease);
}
.site-header.is-scrolled{border-bottom-color:var(--line);box-shadow:var(--sh-1)}
.nav-wrap{display:flex;align-items:center;justify-content:space-between;gap:20px;height:64px}
@media(min-width:960px){.nav-wrap{height:72px;gap:28px}}
.brand-logo{display:inline-flex;align-items:center;gap:10px;color:var(--ink);flex:0 0 auto}
.brand-logo:hover{color:var(--ink)}
.brand-mark{width:30px;height:30px;color:var(--brand);display:inline-flex;flex:0 0 auto}
.brand-mark svg{width:30px;height:30px;display:block}
.brand-text{display:flex;flex-direction:column;line-height:1.15}
.brand-main{font-size:17px;font-weight:800;letter-spacing:-.01em}
.brand-sub{font-size:11px;letter-spacing:.18em;color:var(--ink-2)}
.desktop-nav{display:none;align-items:center;gap:26px}
@media(min-width:960px){.desktop-nav{display:flex}}
.nav-link{position:relative;font-size:15px;font-weight:500;color:var(--ink-2);padding:6px 0;transition:color .24s var(--ease)}
.nav-link::after{
  content:"";position:absolute;left:50%;bottom:-4px;width:22px;height:2px;border-radius:2px;
  background:var(--brand);transform:translateX(-50%) scaleX(0);transform-origin:center;
  transition:transform .26s var(--ease);
}
.nav-link:hover{color:var(--ink)}
.nav-link:hover::after{transform:translateX(-50%) scaleX(.55)}
.nav-link.is-active{color:var(--brand);font-weight:700}
.nav-link.is-active::after{transform:translateX(-50%) scaleX(1)}
.nav-actions{display:flex;align-items:center;gap:12px;flex:0 0 auto}
.mobile-toggle{
  display:inline-flex;flex-direction:column;justify-content:center;gap:5px;
  width:44px;height:44px;padding:0 11px;background:transparent;border:1px solid var(--line);
  border-radius:10px;cursor:pointer;transition:border-color .24s var(--ease),background .24s var(--ease);
}
.mobile-toggle span{display:block;height:2px;width:100%;background:var(--ink);border-radius:2px}
.mobile-toggle:hover{border-color:var(--brand);background:var(--bg-2)}
@media(min-width:960px){.mobile-toggle{display:none}}

/* ---------- Buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:46px;padding:0 26px;border-radius:var(--r-btn);
  font-size:15px;font-weight:700;line-height:1;border:1px solid transparent;
  cursor:pointer;text-align:center;white-space:nowrap;
  transition:background .24s var(--ease),color .24s var(--ease),border-color .24s var(--ease),transform .24s var(--ease),box-shadow .24s var(--ease);
}
.btn .arrow{display:inline-block;transition:transform .24s var(--ease)}
.btn:hover .arrow{transform:translateX(4px)}
.btn-primary{background:var(--brand);color:var(--bg);box-shadow:var(--sh-1)}
.btn-primary:hover{background:#0c6358;color:#ffffff;transform:translateY(-1px);box-shadow:var(--sh-2)}
.btn-primary:active{transform:translateY(0)}
.btn-ghost{background:transparent;border-color:var(--brand);color:var(--brand)}
.btn-ghost:hover{background:var(--brand-soft);color:var(--brand-deep)}
.btn-sm{height:40px;padding:0 20px;font-size:14px}
.btn:focus-visible{outline:2px solid var(--brand);outline-offset:2px}

/* ---------- Mobile drawer ---------- */
.drawer-overlay{
  position:fixed;inset:0;background:rgba(11,23,21,.52);z-index:110;
  opacity:0;visibility:hidden;transition:opacity .3s var(--ease),visibility .3s var(--ease);
}
.drawer-overlay.is-open{opacity:1;visibility:visible}
.mobile-drawer{
  position:fixed;top:0;right:0;bottom:0;width:86vw;max-width:360px;z-index:120;
  background:var(--bg);padding:20px;display:flex;flex-direction:column;overflow-y:auto;
  transform:translateX(100%);transition:transform .3s var(--ease);box-shadow:var(--sh-2);
}
.mobile-drawer.is-open{transform:translateX(0)}
.drawer-head{display:flex;align-items:center;justify-content:space-between;gap:12px;padding-bottom:16px;border-bottom:1px solid var(--line)}
.drawer-head .brand-main{font-size:16px}
.drawer-close{
  width:38px;height:38px;border:1px solid var(--line);border-radius:10px;background:var(--bg-2);
  color:var(--ink-2);font-size:20px;line-height:1;cursor:pointer;
  transition:color .22s var(--ease),border-color .22s var(--ease);
}
.drawer-close:hover{color:var(--brand);border-color:var(--brand)}
.drawer-nav{display:flex;flex-direction:column;margin:8px 0 20px}
.drawer-nav a{
  font-size:18px;font-weight:600;color:var(--ink);line-height:60px;
  border-bottom:1px solid var(--line);transition:color .22s var(--ease);
}
.drawer-nav a:hover{color:var(--brand)}
.drawer-nav a.is-active{color:var(--brand)}
.drawer-cta{width:100%}
.drawer-note{margin:14px 0 0;font-size:13px;color:var(--ink-2);letter-spacing:.02em}
@media(min-width:960px){.mobile-drawer,.drawer-overlay{display:none}}

/* ---------- Page head ---------- */
.page-head{padding:40px 0;border-bottom:1px solid var(--line);background:var(--bg)}
@media(min-width:960px){.page-head{padding:64px 0}}
.breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:12px;color:var(--ink-2);margin-bottom:18px;letter-spacing:.02em}
.breadcrumb a{color:var(--ink-2)}
.breadcrumb a:hover{color:var(--brand)}
.breadcrumb .sep{color:var(--line)}
.breadcrumb .current{color:var(--ink)}
.page-head h1{
  font-size:clamp(2rem,4.2vw,3rem);
  font-weight:800;line-height:1.16;letter-spacing:-.01em;
  max-width:820px;
}
.page-lead{
  margin:16px 0 0;max-width:660px;font-size:16px;color:var(--ink-2);line-height:1.8;
}
.page-head .tag-row{display:flex;flex-wrap:wrap;gap:8px;margin-top:20px}
.tag{
  display:inline-flex;align-items:center;background:var(--brand-soft);color:var(--brand-deep);
  font-size:12px;font-weight:600;padding:4px 10px;border-radius:var(--r-tag);
}

/* ---------- Sections ---------- */
.section{padding:52px 0}
@media(min-width:600px){.section{padding:72px 0}}
@media(min-width:960px){.section{padding:96px 0}}
.section--alt{background:var(--bg-2);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.section-head{display:flex;flex-wrap:wrap;align-items:flex-end;justify-content:space-between;gap:16px;margin-bottom:32px}
.eyebrow{display:block;font-size:12px;font-weight:700;letter-spacing:.16em;text-transform:uppercase;color:var(--brand);margin-bottom:10px}
.section h2{font-size:clamp(1.55rem,2.6vw,2.3rem);font-weight:700;line-height:1.28}
.section-sub{margin:12px 0 0;max-width:640px;font-size:15px;color:var(--ink-2);line-height:1.8}
.link-more{display:inline-flex;align-items:center;gap:6px;font-size:15px;font-weight:700;color:var(--brand);position:relative}
.link-more::after{
  content:"";position:absolute;left:0;bottom:-3px;height:2px;width:0;background:var(--brand);
  transition:width .28s var(--ease);
}
.link-more:hover::after{width:100%}
.link-more .arrow{transition:transform .24s var(--ease)}
.link-more:hover .arrow{transform:translateX(4px)}

/* ---------- Brand story ---------- */
.story{display:grid;grid-template-columns:1fr;gap:32px;align-items:center}
@media(min-width:960px){.story{grid-template-columns:7fr 5fr;gap:48px}}
.story-copy p{color:var(--ink-2);font-size:16px}
.story-copy p strong{color:var(--ink);font-weight:700}
.square-list{display:grid;gap:14px;margin:24px 0 28px}
.square-list li{position:relative;padding-left:22px;font-size:15px;color:var(--ink-2);line-height:1.75}
.square-list li::before{content:"";position:absolute;left:0;top:.68em;width:8px;height:8px;border-radius:2px;background:var(--brand)}
.story-media{overflow:hidden;border-radius:var(--r-lg);box-shadow:var(--sh-1);border:1px solid var(--line);background:var(--brand-soft)}
.story-media img{width:100%;aspect-ratio:16/10;object-fit:cover;border-radius:var(--r-lg);transition:transform .3s var(--ease)}
.story-media:hover img{transform:scale(1.04)}
.story-caption{margin-top:12px;font-size:13px;color:var(--ink-2);letter-spacing:.02em}

/* ---------- Info cards ---------- */
.info-grid{display:grid;grid-template-columns:1fr;gap:16px}
@media(min-width:600px){.info-grid{grid-template-columns:repeat(2,1fr)}}
@media(min-width:1024px){.info-grid{grid-template-columns:repeat(4,1fr);gap:24px}}
.info-card{
  background:var(--bg-2);border:1px solid var(--line);border-radius:var(--r-card);
  padding:22px;box-shadow:var(--sh-1);
  transition:transform .28s var(--ease),box-shadow .28s var(--ease),border-color .28s var(--ease);
}
.info-card:hover{transform:translateY(-4px);box-shadow:var(--sh-2);border-color:rgba(15,118,106,.35)}
.info-card .num{display:block;font-size:12px;font-weight:700;letter-spacing:.16em;color:var(--brand);margin-bottom:10px}
.info-card .value{display:block;font-size:20px;font-weight:800;color:var(--ink);line-height:1.4;margin-bottom:6px;word-break:break-all}
.info-card h3{font-size:16px;font-weight:700;margin-bottom:6px}
.info-card p{margin:0;font-size:14px;color:var(--ink-2);line-height:1.75}

/* ---------- Contact ---------- */
.contact-grid{display:grid;grid-template-columns:1fr;gap:24px}
@media(min-width:960px){.contact-grid{grid-template-columns:8fr 4fr;gap:32px}}
.card{background:var(--bg-2);border:1px solid var(--line);border-radius:var(--r-card);padding:24px;box-shadow:var(--sh-1)}
.card-title{font-size:18px;font-weight:700;margin-bottom:6px}
.card-desc{font-size:14px;color:var(--ink-2);margin-bottom:22px}
.form-grid{display:grid;grid-template-columns:1fr;gap:16px}
@media(min-width:600px){
  .form-grid{grid-template-columns:1fr 1fr}
  .form-field.span-2{grid-column:1 / -1}
}
.form-field label{display:block;font-size:14px;font-weight:600;color:var(--ink);margin-bottom:6px}
.form-field input,.form-field select,.form-field textarea{
  width:100%;height:46px;padding:0 14px;font-size:15px;color:var(--ink);
  background:var(--bg-2);border:1px solid var(--line);border-radius:var(--r-btn);
  font-family:inherit;transition:border-color .22s var(--ease),box-shadow .22s var(--ease);
}
.form-field textarea{height:auto;min-height:132px;padding:12px 14px;line-height:1.7;resize:vertical}
.form-field select{appearance:none;-webkit-appearance:none;background-image:linear-gradient(45deg,transparent 50%,var(--ink-2) 50%),linear-gradient(135deg,var(--ink-2) 50%,transparent 50%);background-position:calc(100% - 18px) 21px,calc(100% - 12px) 21px;background-size:6px 6px,6px 6px;background-repeat:no-repeat}
.form-field input:focus,.form-field select:focus,.form-field textarea:focus{
  outline:none;border-color:var(--brand);box-shadow:0 0 0 3px rgba(15,118,106,.14);
}
.form-actions{display:flex;flex-wrap:wrap;align-items:center;gap:14px;margin-top:20px}
.form-hint{font-size:13px;color:var(--ink-2);letter-spacing:.02em;margin:0}
.form-feedback{min-height:20px;margin-top:14px;font-size:14px;line-height:1.7}
.form-feedback.is-ok{color:var(--success)}
.form-feedback.is-error{color:var(--warn)}
.contact-info .info-row{padding:16px 0;border-bottom:1px dashed var(--line)}
.contact-info .info-row:first-of-type{padding-top:0}
.contact-info .info-row:last-of-type{border-bottom:none;padding-bottom:0}
.info-row .k{display:block;font-size:12px;font-weight:700;letter-spacing:.16em;color:var(--brand);text-transform:uppercase;margin-bottom:2px}
.info-row .v{display:block;font-size:15px;color:var(--ink);word-break:break-all}
.info-row .v a{color:var(--ink);border-bottom:1px solid var(--brand-soft);transition:color .22s var(--ease),border-color .22s var(--ease)}
.info-row .v a:hover{color:var(--brand);border-color:var(--brand)}

/* ---------- Steps ---------- */
.steps{display:grid;grid-template-columns:1fr;gap:20px}
@media(min-width:768px){.steps{grid-template-columns:repeat(4,1fr);gap:24px}}
.step{
  position:relative;background:var(--bg-2);border:1px solid var(--line);border-radius:var(--r-card);
  padding:22px 20px;box-shadow:var(--sh-1);
  transition:transform .28s var(--ease),box-shadow .28s var(--ease),border-color .28s var(--ease);
}
.step:hover{transform:translateY(-4px);box-shadow:var(--sh-2);border-color:rgba(15,118,106,.35)}
.step .step-no{
  display:inline-flex;align-items:center;justify-content:center;
  width:34px;height:34px;border-radius:50%;background:var(--brand-soft);color:var(--brand-deep);
  font-size:14px;font-weight:800;margin-bottom:14px;transition:background .28s var(--ease),color .28s var(--ease);
}
.step:hover .step-no{background:var(--brand);color:var(--bg)}
.step h3{font-size:16px;font-weight:700;margin-bottom:8px}
.step p{margin:0;font-size:14px;color:var(--ink-2);line-height:1.75}
@media(min-width:768px){
  .step:not(:last-child)::after{
    content:"";position:absolute;top:39px;right:-24px;width:24px;height:0;
    border-top:1px dashed var(--line);
  }
}

/* ---------- FAQ ---------- */
.faq-list{display:grid;gap:12px;max-width:880px}
.faq-item{
  background:var(--bg-2);border:1px solid var(--line);border-radius:12px;overflow:hidden;
  transition:border-color .24s var(--ease),box-shadow .24s var(--ease);
}
.faq-item.is-open{border-color:rgba(15,118,106,.4);box-shadow:var(--sh-1)}
.faq-q{
  width:100%;display:flex;align-items:center;gap:14px;padding:18px 20px;
  background:none;border:0;text-align:left;cursor:pointer;
  font-size:16px;font-weight:600;color:var(--ink);line-height:1.6;
}
.faq-q .idx{flex:0 0 auto;color:var(--brand);font-weight:700;font-size:14px;letter-spacing:.06em}
.faq-q .plus{position:relative;flex:0 0 auto;margin-left:auto;width:18px;height:18px;transition:transform .3s var(--ease)}
.faq-q .plus::before,.faq-q .plus::after{content:"";position:absolute;background:var(--brand);border-radius:2px}
.faq-q .plus::before{left:0;top:8px;width:18px;height:2px}
.faq-q .plus::after{left:8px;top:0;width:2px;height:18px}
.faq-item.is-open .plus{transform:rotate(45deg)}
.faq-a{max-height:0;overflow:hidden;transition:max-height .3s var(--ease)}
.faq-a-inner{padding:0 20px 18px 52px;font-size:15px;line-height:1.9;color:var(--ink-2)}
.faq-a-inner p:last-child{margin-bottom:0}

/* ---------- CTA band ---------- */
.cta-wrap{padding:0 0 52px}
@media(min-width:600px){.cta-wrap{padding:0 0 72px}}
@media(min-width:960px){.cta-wrap{padding:0 0 96px}}
.cta-band{
  position:relative;overflow:hidden;border-radius:var(--r-lg);
  background:linear-gradient(120deg,var(--brand-deep) 0%,#0B1715 100%);
  color:var(--inverse);padding:40px 24px;
}
@media(min-width:960px){.cta-band{padding:56px 48px}}
.cta-band::before{
  content:"";position:absolute;inset:0;
  background:url(/assets/images/backpic/back-1.png) center/cover no-repeat;
  opacity:.14;pointer-events:none;
}
.cta-inner{position:relative;z-index:1;display:grid;grid-template-columns:1fr;gap:28px;align-items:center}
@media(min-width:960px){.cta-inner{grid-template-columns:7fr 5fr;gap:48px}}
.cta-inner h2{color:var(--inverse);font-size:clamp(1.55rem,2.6vw,2.1rem);font-weight:700;line-height:1.32}
.cta-inner p{margin:12px 0 0;color:rgba(242,240,234,.78);font-size:15px;max-width:520px}
.cta-points{display:grid;gap:10px;margin-top:20px}
.cta-points li{position:relative;padding-left:20px;font-size:14px;color:rgba(242,240,234,.86);line-height:1.7}
.cta-points li::before{content:"";position:absolute;left:0;top:.66em;width:8px;height:8px;border-radius:2px;background:var(--accent)}
.cta-actions{display:flex;flex-wrap:wrap;gap:12px}
.cta-actions .btn-primary{background:var(--brand-soft);color:var(--brand-deep)}
.cta-actions .btn-primary:hover{background:#ffffff;color:var(--brand-deep)}
.cta-actions .btn-ghost{border-color:rgba(242,240,234,.5);color:var(--inverse)}
.cta-actions .btn-ghost:hover{background:rgba(255,255,255,.12);color:#ffffff;border-color:rgba(242,240,234,.8)}
.cta-note{font-size:13px;color:rgba(242,240,234,.62);margin:14px 0 0;letter-spacing:.02em}

/* ---------- Footer ---------- */
.site-footer{background:#0B1715;color:var(--inverse);padding:56px 0 0}
.footer-grid{display:grid;grid-template-columns:1fr;gap:32px;padding-bottom:40px}
@media(min-width:768px){.footer-grid{grid-template-columns:repeat(2,1fr)}}
@media(min-width:1024px){.footer-grid{grid-template-columns:2fr 1fr 1fr 1.2fr}}
.footer-logo{color:var(--inverse)}
.footer-logo:hover{color:var(--inverse)}
.footer-logo .brand-main{color:var(--inverse)}
.footer-logo .brand-sub{color:rgba(242,240,234,.6)}
.footer-logo .brand-mark{color:#5CC0AF}
.footer-brand p{color:rgba(242,240,234,.72);font-size:14px;line-height:1.8;margin:16px 0 18px;max-width:340px}
.footer-badges{display:flex;flex-wrap:wrap;gap:8px}
.footer-badges span{
  background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.12);
  color:rgba(242,240,234,.85);font-size:12px;padding:4px 10px;border-radius:var(--r-tag);
}
.footer-col h3{font-size:14px;font-weight:700;color:var(--inverse);margin-bottom:14px;letter-spacing:.06em}
.footer-col a,.footer-col p{
  display:block;font-size:14px;color:rgba(242,240,234,.72);margin:0 0 10px;line-height:1.7;
  transition:color .22s var(--ease),transform .22s var(--ease);
}
.footer-col a:hover{color:var(--brand-soft);transform:translateX(2px)}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.12);
  padding-top:18px;padding-bottom:18px;
  display:flex;flex-wrap:wrap;gap:10px;justify-content:space-between;align-items:center;
  font-size:12px;color:rgba(242,240,234,.55);letter-spacing:.02em;
}

/* ---------- Reveal ---------- */
.reveal{opacity:0;transform:translateY(12px);transition:opacity .32s var(--ease),transform .32s var(--ease)}
.reveal.is-in{opacity:1;transform:none}
@media (prefers-reduced-motion: reduce){
  .reveal{opacity:1;transform:none;transition:none}
  html{scroll-behavior:auto}
  *{animation-duration:.001ms !important;transition-duration:.001ms !important}
}