/* roulang page: index */
:root{
  --c-green:#1E5B4F;
  --c-ink:#122B26;
  --c-teal:#2E8B78;
  --c-amber:#E7A33C;
  --c-coral:#D65F4A;
  --c-mint:#E6F2EC;
  --c-cream:#F7F3EA;
  --c-text:#1D2723;
  --c-muted:#66736D;
  --c-line:#DCE5DF;
  --c-surface:#FFFFFF;
  --grad-brand:linear-gradient(135deg,#0F3D34 0%,#1E5B4F 48%,#2E8B78 100%);
  --grad-warm:linear-gradient(135deg,#E7A33C 0%,#D65F4A 100%);
  --radius-xl:28px;
  --radius-lg:24px;
  --radius-md:20px;
  --radius-sm:14px;
  --shadow-1:0 12px 32px rgba(18,59,52,.08);
  --shadow-2:0 16px 40px rgba(18,59,52,.12);
  --bs-primary:#1E5B4F;
  --bs-body-color:#1D2723;
  --bs-border-color:#DCE5DF;
  --bs-border-radius:16px;
  --bs-link-color:#1E5B4F;
  --bs-link-hover-color:#D65F4A;
  --bs-body-bg:#F7F3EA;
  --bs-font-sans-serif:'PingFang SC','Microsoft YaHei','Noto Sans SC',sans-serif;
}
*{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  margin:0;
  font-family:'PingFang SC','Microsoft YaHei','Noto Sans SC',sans-serif;
  font-size:16.5px;
  line-height:1.82;
  color:var(--c-text);
  background:var(--c-cream);
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}
h1,h2,h3,h4,h5{
  font-family:'Songti SC','Noto Serif SC','STSong',serif;
  color:var(--c-ink);
  margin:0;
  font-weight:700;
  line-height:1.24;
  letter-spacing:.2px;
}
h1{font-size:clamp(2rem,4.2vw,3.6rem);line-height:1.16;}
h2{font-size:clamp(1.5rem,2.5vw,2.25rem);}
h3{font-size:1.3rem;}
p{margin:0 0 1em;}
p:last-child{margin-bottom:0;}
a{color:var(--c-green);text-decoration:none;transition:color .22s ease;}
a:hover{color:var(--c-coral);}
img{max-width:100%;display:block;}
button,input,select,textarea{font-family:inherit;font-size:inherit;color:inherit;}
ul,ol{margin:0;padding:0;list-style:none;}
:focus-visible{outline:3px solid rgba(231,163,60,.55);outline-offset:3px;border-radius:6px;}
.container{
  width:100%;
  max-width:1240px;
  margin-left:auto;
  margin-right:auto;
  padding-left:24px;
  padding-right:24px;
}
.section{padding:clamp(56px,7vw,96px) 0;position:relative;}
.section--white{background:var(--c-surface);}
.section--cream{background:var(--c-cream);}
.section--mint{background:var(--c-mint);}
.section--dark{background:var(--grad-brand);color:#EAF4EF;}
.section--dark h2,.section--dark h3{color:#FFFFFF;}
.section-head{max-width:800px;margin-bottom:clamp(28px,3.4vw,46px);}
.section-head .eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;font-weight:700;letter-spacing:1.2px;
  color:var(--c-teal);text-transform:none;margin-bottom:14px;
}
.section-head .eyebrow::before{
  content:"";width:22px;height:2px;background:var(--grad-warm);border-radius:2px;
}
.section-head h2{margin-bottom:14px;}
.section-head p{color:var(--c-muted);font-size:16px;line-height:1.85;max-width:720px;}

/* ---------- buttons ---------- */
.btn-brand,.btn-ghost,.btn-amber{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:12px 24px;border-radius:999px;font-weight:600;font-size:15.5px;
  border:1px solid transparent;cursor:pointer;line-height:1.2;
  transition:transform .22s ease,box-shadow .22s ease,background .22s ease,color .22s ease,border-color .22s ease;
  min-height:46px;
}
.btn-brand{background:var(--grad-brand);color:#fff;box-shadow:0 10px 24px rgba(18,59,52,.22);}
.btn-brand:hover{color:#fff;transform:translateY(-2px);box-shadow:0 16px 34px rgba(18,59,52,.28);}
.btn-amber{background:var(--c-amber);color:#2A1C05;box-shadow:0 10px 24px rgba(231,163,60,.28);}
.btn-amber:hover{background:#F0B159;color:#2A1C05;transform:translateY(-2px);box-shadow:0 16px 34px rgba(231,163,60,.34);}
.btn-ghost{background:transparent;color:var(--c-green);border-color:var(--c-line);}
.btn-ghost:hover{background:var(--c-mint);border-color:var(--c-green);color:var(--c-green);transform:translateY(-2px);}
.btn-ghost-light{background:transparent;color:#F3FBF7;border-color:rgba(255,255,255,.42);}
.btn-ghost-light:hover{background:rgba(255,255,255,.14);color:#fff;border-color:rgba(255,255,255,.7);transform:translateY(-2px);}
.btn-brand:active,.btn-amber:active,.btn-ghost:active{transform:translateY(0);}
.btn-brand:disabled,.btn-amber:disabled,.btn-ghost:disabled{opacity:.55;cursor:not-allowed;transform:none;box-shadow:none;}

/* ---------- badges ---------- */
.badge-data{
  display:inline-flex;align-items:center;gap:7px;
  background:rgba(231,163,60,.18);color:#4A3308;
  border:1px solid rgba(231,163,60,.42);
  border-radius:999px;padding:5px 12px;font-size:12.5px;font-weight:600;
  font-variant-numeric:tabular-nums;white-space:nowrap;
}
.badge-data::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--c-amber);flex:0 0 auto;}
.badge-soft{
  display:inline-flex;align-items:center;gap:6px;
  background:var(--c-mint);color:var(--c-green);
  border-radius:999px;padding:4px 12px;font-size:12.5px;font-weight:600;
}
.badge-outline{
  display:inline-flex;align-items:center;gap:6px;
  background:transparent;color:var(--c-muted);
  border:1px solid var(--c-line);border-radius:999px;
  padding:3px 11px;font-size:12.5px;font-variant-numeric:tabular-nums;
}

/* ---------- header ---------- */
.site-header{
  position:sticky;top:0;z-index:1000;
  background:rgba(247,243,234,.94);
  backdrop-filter:saturate(160%) blur(12px);
  border-bottom:1px solid var(--c-line);
  transition:box-shadow .25s ease,background .25s ease;
}
.site-header.is-scrolled{box-shadow:0 8px 26px rgba(18,59,52,.1);background:rgba(247,243,234,.98);}
.nav-wrap{display:flex;align-items:center;gap:26px;min-height:82px;}
.brand{display:flex;align-items:center;gap:12px;flex:0 0 auto;color:var(--c-ink);}
.brand:hover{color:var(--c-ink);}
.brand-mark{
  width:42px;height:42px;border-radius:14px;background:var(--grad-brand);
  color:#F7F3EA;display:flex;align-items:center;justify-content:center;
  font-family:'Songti SC','Noto Serif SC',serif;font-size:21px;flex:0 0 auto;
  box-shadow:0 8px 18px rgba(18,59,52,.22);
}
.brand-text{display:flex;flex-direction:column;line-height:1.25;}
.brand-main{font-family:'Songti SC','Noto Serif SC',serif;font-size:17px;font-weight:700;color:var(--c-ink);}
.brand-sub{font-size:11.5px;color:var(--c-muted);letter-spacing:.6px;}
.nav-links{display:flex;align-items:center;gap:4px;margin-left:auto;}
.nav-links a{
  position:relative;display:inline-block;padding:10px 14px;font-size:15px;
  color:var(--c-ink);border-radius:10px;
}
.nav-links a::after{
  content:"";position:absolute;left:14px;right:14px;bottom:4px;height:2px;
  background:var(--c-green);transform:scaleX(0);transform-origin:left;
  transition:transform .25s ease;border-radius:2px;
}
.nav-links a:hover{color:var(--c-green);}
.nav-links a:hover::after{transform:scaleX(1);}
.nav-links a.is-active{color:var(--c-green);font-weight:600;}
.nav-links a.is-active::after{transform:scaleX(1);}
.nav-links a.is-active::before{
  content:"";position:absolute;left:50%;bottom:-6px;width:4px;height:4px;
  margin-left:-2px;border-radius:50%;background:var(--c-amber);
}
.nav-actions{display:flex;align-items:center;gap:10px;flex:0 0 auto;}
.nav-icon{
  width:40px;height:40px;border-radius:50%;border:1px solid var(--c-line);
  display:flex;align-items:center;justify-content:center;color:var(--c-green);
  background:transparent;transition:background .2s ease,border-color .2s ease;
}
.nav-icon:hover{background:var(--c-mint);border-color:var(--c-green);color:var(--c-green);}
.nav-cta{
  padding:9px 20px;border-radius:999px;background:var(--grad-brand);color:#fff;
  font-size:14.5px;font-weight:600;box-shadow:0 8px 18px rgba(18,59,52,.2);
}
.nav-cta:hover{color:#fff;transform:translateY(-1px);}
.nav-toggle{
  display:none;width:42px;height:42px;border-radius:12px;
  border:1px solid var(--c-line);background:#fff;color:var(--c-ink);
  align-items:center;justify-content:center;font-size:20px;
}
.offcanvas{background:var(--c-cream);}
.offcanvas-header{border-bottom:1px solid var(--c-line);}
.offcanvas-title{font-family:'Songti SC','Noto Serif SC',serif;font-size:17px;color:var(--c-ink);}
.mobile-nav a{
  display:flex;align-items:center;gap:10px;padding:14px 16px;
  border-bottom:1px solid var(--c-line);color:var(--c-ink);font-size:15.5px;border-radius:12px;
}
.mobile-nav a:hover,.mobile-nav a:active{background:var(--c-mint);color:var(--c-green);}
.mobile-nav a.is-active{background:var(--c-mint);color:var(--c-green);font-weight:600;}
.mobile-nav a.is-active::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--c-amber);}

/* ---------- hero ---------- */
.hero{padding:34px 0 0;background:var(--c-cream);}
.hero-card{
  position:relative;overflow:hidden;border-radius:var(--radius-xl);
  background:var(--grad-brand);color:#EAF4EF;
  padding:clamp(30px,4vw,54px);
  box-shadow:0 24px 60px rgba(15,61,52,.24);
}
.hero-card::before{
  content:"";position:absolute;inset:0;
  background-image:url('/assets/images/9682397eeb4c1c37.webp');
  background-size:cover;background-position:center;
  opacity:.16;pointer-events:none;
}
.hero-card::after{
  content:"";position:absolute;right:-120px;top:-120px;width:380px;height:380px;
  border-radius:50%;background:radial-gradient(circle,rgba(231,163,60,.34),transparent 68%);
  pointer-events:none;
}
.hero-grid{position:relative;z-index:2;display:grid;grid-template-columns:7fr 5fr;gap:clamp(24px,3.4vw,48px);align-items:start;}
.hero-profile{display:flex;align-items:center;gap:14px;margin-bottom:24px;flex-wrap:wrap;}
.hero-avatar{
  width:60px;height:60px;border-radius:22px;flex:0 0 auto;
  background:linear-gradient(135deg,#E7A33C 0%,#D65F4A 100%);
  color:#2A1C05;display:flex;align-items:center;justify-content:center;
  font-family:'Songti SC','Noto Serif SC',serif;font-size:26px;font-weight:700;
  box-shadow:0 10px 26px rgba(0,0,0,.2);
}
.hero-profile-info{display:flex;flex-direction:column;line-height:1.35;}
.hero-name{font-size:16px;font-weight:700;color:#fff;letter-spacing:.4px;}
.hero-verify{font-size:12.5px;color:rgba(234,244,239,.78);display:inline-flex;align-items:center;gap:5px;margin-top:3px;}
.hero-follow{
  margin-left:auto;padding:7px 18px;border-radius:999px;font-size:13.5px;font-weight:600;
  background:rgba(255,255,255,.14);color:#fff;border:1px solid rgba(255,255,255,.4);
  transition:background .2s ease;
}
.hero-follow:hover{background:rgba(255,255,255,.26);color:#fff;}
.hero h1{color:#FFFFFF;margin-bottom:18px;text-shadow:0 2px 18px rgba(0,0,0,.16);}
.hero-lead{color:rgba(234,244,239,.9);font-size:16.5px;line-height:1.88;max-width:640px;margin-bottom:26px;}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:24px;}
.hero-tags{display:flex;flex-wrap:wrap;gap:9px;}
.hero-tags .badge-soft{background:rgba(255,255,255,.14);color:#EAF4EF;border:1px solid rgba(255,255,255,.24);}
.hero-panel{
  background:rgba(8,38,32,.5);border:1px solid rgba(255,255,255,.22);
  border-radius:var(--radius-lg);padding:24px 22px;backdrop-filter:blur(6px);
}
.hero-panel-head{
  font-size:13px;letter-spacing:1.4px;color:rgba(234,244,239,.72);
  margin-bottom:16px;display:flex;align-items:center;gap:8px;
}
.hero-panel-head::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--c-amber);}
.metric-list{display:grid;gap:12px;}
.metric-list li{
  display:flex;align-items:center;justify-content:space-between;gap:12px;
  padding-bottom:12px;border-bottom:1px dashed rgba(255,255,255,.18);
}
.metric-list li:last-child{border-bottom:none;padding-bottom:0;}
.metric-list .badge-data{background:rgba(231,163,60,.2);color:#FFE7BF;border-color:rgba(231,163,60,.5);}
.metric-list strong{
  font-family:'Songti SC','Noto Serif SC',serif;font-size:22px;color:#fff;
  font-variant-numeric:tabular-nums;letter-spacing:.5px;
}
.hero-note{margin-top:14px;font-size:12.5px;color:rgba(234,244,239,.66);line-height:1.7;}

/* ---------- bento ---------- */
.bento{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;}
.card-soft{
  background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--radius-md);
  box-shadow:var(--shadow-1);padding:26px;transition:transform .28s ease,box-shadow .28s ease,border-color .28s ease;
}
.card-soft:hover{transform:translateY(-4px);box-shadow:var(--shadow-2);border-color:#C9DAD2;}
.bento .card-lg{grid-column:span 2;}
.bento .card-sm{grid-column:span 1;}
.bento .card-lg{padding:30px;}
.icon-box{
  width:52px;height:52px;border-radius:16px;display:flex;align-items:center;justify-content:center;
  background:var(--c-mint);color:var(--c-green);font-size:23px;margin-bottom:18px;
  transition:background .28s ease,color .28s ease;
}
.card-soft:hover .icon-box{background:rgba(231,163,60,.2);color:#9A6410;}
.card-soft h3{margin-bottom:10px;font-size:1.24rem;}
.card-soft p{color:var(--c-muted);font-size:15px;line-height:1.8;margin-bottom:16px;}
.link-arrow{
  display:inline-flex;align-items:center;gap:7px;font-size:14.5px;font-weight:600;
  color:var(--c-green);border-bottom:1px solid transparent;transition:gap .22s ease,border-color .22s ease,color .22s ease;
}
.link-arrow:hover{color:var(--c-coral);gap:11px;border-bottom-color:var(--c-coral);}

/* ---------- compare ---------- */
.compare-grid{display:grid;grid-template-columns:1fr 1fr;gap:24px;}
.compare-panel{
  background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--radius-lg);
  padding:28px;box-shadow:var(--shadow-1);position:relative;overflow:hidden;
}
.compare-panel.is-brand{background:linear-gradient(180deg,#FFFFFF 0%,#F2FAF6 100%);border-color:#C7DED5;}
.compare-panel.is-brand::before{content:"";position:absolute;top:0;left:0;right:0;height:4px;background:var(--grad-brand);}
.compare-panel h3{font-size:1.2rem;margin-bottom:6px;}
.compare-panel .panel-sub{font-size:13.5px;color:var(--c-muted);margin-bottom:22px;}
.compare-row{margin-bottom:18px;}
.compare-row:last-child{margin-bottom:0;}
.compare-row-top{display:flex;justify-content:space-between;align-items:center;font-size:14.5px;margin-bottom:8px;}
.compare-row-top span:last-child{color:var(--c-muted);font-size:13px;font-variant-numeric:tabular-nums;}
.bar{height:9px;border-radius:999px;background:#EDF3EF;overflow:hidden;}
.bar i{display:block;height:100%;border-radius:999px;}
.bar.is-muted i{background:linear-gradient(90deg,#D7E1DB,#C3D2CA);}
.bar.is-brand i{background:linear-gradient(90deg,#2E8B78,#1E5B4F);}
.compare-foot{margin-top:26px;display:flex;flex-wrap:wrap;align-items:center;gap:14px;font-size:14.5px;color:var(--c-muted);}

/* ---------- timeline ---------- */
.timeline{display:grid;grid-template-columns:repeat(5,1fr);gap:18px;position:relative;}
.timeline::before{
  content:"";position:absolute;left:0;right:0;top:19px;height:1px;background:var(--c-line);
}
.tl-node{position:relative;padding-top:44px;}
.tl-dot{
  position:absolute;top:12px;left:0;width:15px;height:15px;border-radius:50%;
  background:var(--c-green);border:3px solid var(--c-cream);box-shadow:0 0 0 1px var(--c-line);
}
.tl-node.is-current .tl-dot{background:var(--c-amber);}
.tl-node .badge-data{margin-bottom:10px;}
.tl-node h3{font-size:16px;margin-bottom:6px;}
.tl-node p{font-size:14px;color:var(--c-muted);line-height:1.75;margin:0;}

/* ---------- news ---------- */
.news-grid{display:grid;grid-template-columns:1.15fr 1fr;gap:24px;}
.card-feature{
  background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--radius-lg);
  box-shadow:var(--shadow-1);overflow:hidden;position:relative;transition:transform .28s ease,box-shadow .28s ease;
  height:100%;display:flex;flex-direction:column;
}
.card-feature::before{content:"";position:absolute;top:0;left:0;right:0;height:4px;background:var(--grad-brand);z-index:3;}
.card-feature:hover{transform:translateY(-4px);box-shadow:var(--shadow-2);}
.card-feature .thumb{aspect-ratio:16/10;overflow:hidden;background:linear-gradient(135deg,var(--c-mint),#F6FBF8);}
.card-feature .thumb img{width:100%;height:100%;object-fit:cover;transition:transform .5s ease;}
.card-feature:hover .thumb img{transform:scale(1.02);}
.card-feature .body{padding:24px;display:flex;flex-direction:column;gap:12px;flex:1;}
.card-feature h3{font-size:1.35rem;line-height:1.4;}
.card-feature h3 a{color:var(--c-ink);}
.card-feature h3 a:hover{color:var(--c-green);}
.card-feature p{color:var(--c-muted);font-size:15px;line-height:1.8;margin:0;}
.meta-row{display:flex;flex-wrap:wrap;align-items:center;gap:10px;font-size:13px;color:var(--c-muted);}
.news-side{display:grid;gap:16px;align-content:start;}
.card-row{
  display:grid;grid-template-columns:104px 1fr;gap:16px;
  background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--radius-sm);
  padding:14px;box-shadow:var(--shadow-1);transition:transform .26s ease,box-shadow .26s ease;
}
.card-row:hover{transform:translateY(-3px);box-shadow:var(--shadow-2);}
.card-row .thumb{aspect-ratio:4/3;border-radius:12px;overflow:hidden;background:linear-gradient(135deg,var(--c-mint),#F6FBF8);}
.card-row .thumb img{width:100%;height:100%;object-fit:cover;}
.card-row h3{font-size:15.5px;line-height:1.5;margin-bottom:8px;}
.card-row h3 a{color:var(--c-ink);}
.card-row h3 a:hover{color:var(--c-green);}
.card-row p{font-size:13.5px;color:var(--c-muted);margin:0 0 8px;line-height:1.7;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.empty-state{
  background:#FCFAF4;border:1px dashed var(--c-line);border-radius:var(--radius-md);
  padding:44px 26px;text-align:center;color:var(--c-muted);font-size:15px;
}
.empty-state i{display:block;font-size:30px;color:#C3D2CA;margin-bottom:12px;}
.list-more{margin-top:28px;display:flex;justify-content:flex-start;}

/* ---------- guarantee ---------- */
.guarantee-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:20px;}
.g-card{
  background:rgba(255,255,255,.86);border:1px solid #CFE5DA;border-radius:var(--radius-md);
  padding:24px;display:flex;gap:16px;align-items:flex-start;
  transition:box-shadow .26s ease,transform .26s ease;
}
.g-card:hover{box-shadow:var(--shadow-2);transform:translateY(-2px);}
.g-card .icon-box{width:46px;height:46px;border-radius:14px;font-size:20px;margin-bottom:0;flex:0 0 auto;}
.g-card h3{font-size:1.1rem;margin-bottom:6px;}
.g-card p{font-size:14.5px;color:var(--c-muted);margin:0;line-height:1.78;}

/* ---------- steps ---------- */
.steps-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px;}
.step-card{
  background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--radius-md);
  padding:26px;box-shadow:var(--shadow-1);transition:transform .26s ease,box-shadow .26s ease;
}
.step-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-2);}
.step-num{
  width:38px;height:38px;border-radius:50%;display:flex;align-items:center;justify-content:center;
  background:rgba(231,163,60,.2);color:#8A5A10;font-weight:700;font-size:15px;
  font-variant-numeric:tabular-nums;margin-bottom:16px;
}
.step-card h3{font-size:1.15rem;margin-bottom:8px;}
.step-card p{font-size:14.8px;color:var(--c-muted);margin-bottom:14px;line-height:1.8;}

/* ---------- topics ---------- */
.topic-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;}
.topic-grid .card-feature .body{padding:22px;}
.topic-grid .card-feature h3{font-size:1.08rem;}
.topic-grid .card-feature p{font-size:14px;}

/* ---------- software ---------- */
.soft-grid{display:grid;grid-template-columns:1.35fr 1fr;gap:24px;align-items:start;}
.card-download{
  background:var(--c-surface);border:1px solid var(--c-line);border-left:4px solid var(--c-amber);
  border-radius:var(--radius-sm);padding:20px 22px;box-shadow:var(--shadow-1);
  display:flex;align-items:center;justify-content:space-between;gap:18px;flex-wrap:wrap;
  transition:transform .24s ease,box-shadow .24s ease;
}
.card-download:hover{transform:translateY(-3px);box-shadow:var(--shadow-2);}
.card-download h3{font-size:1.05rem;margin-bottom:6px;}
.card-download p{font-size:13.5px;color:var(--c-muted);margin:0;}
.ver-num{font-family:'SFMono-Regular',Consolas,monospace;font-variant-numeric:tabular-nums;font-weight:700;color:var(--c-green);}
.dl-list{display:grid;gap:14px;}
.soft-aside{
  background:var(--c-mint);border:1px solid #CFE5DA;border-radius:var(--radius-lg);padding:28px;
}
.soft-aside h3{font-size:1.2rem;margin-bottom:12px;}
.soft-aside ul{display:grid;gap:12px;margin-bottom:22px;}
.soft-aside li{display:flex;gap:10px;font-size:14.6px;color:#2C4A42;line-height:1.75;}
.soft-aside li i{color:var(--c-teal);flex:0 0 auto;margin-top:4px;}

/* ---------- scenes ---------- */
.scene-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:20px;}
.scene-card{
  background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--radius-md);
  padding:24px;display:flex;gap:16px;box-shadow:var(--shadow-1);
  transition:transform .26s ease,box-shadow .26s ease;
}
.scene-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-2);}
.scene-card h3{font-size:1.1rem;margin-bottom:7px;}
.scene-card p{font-size:14.6px;color:var(--c-muted);margin:0;line-height:1.78;}
.scene-banner{
  margin-top:24px;border-radius:var(--radius-lg);overflow:hidden;
  aspect-ratio:16/6;background:linear-gradient(135deg,var(--c-mint),#F6FBF8);
}
.scene-banner img{width:100%;height:100%;object-fit:cover;}

/* ---------- areas ---------- */
.area-wrap{display:flex;flex-wrap:wrap;gap:12px;align-items:center;}
.area-tag{
  padding:9px 20px;border-radius:999px;border:1px solid var(--c-line);background:#fff;
  color:var(--c-ink);font-size:14.5px;cursor:pointer;transition:all .22s ease;font-weight:500;
}
.area-tag:hover{border-color:var(--c-green);color:var(--c-green);background:var(--c-mint);}
.area-tag.is-active{background:var(--c-green);border-color:var(--c-green);color:#fff;font-weight:600;}
.area-note{
  margin-top:22px;font-size:14.6px;color:var(--c-muted);display:flex;flex-wrap:wrap;gap:12px;align-items:center;
}

/* ---------- guide ---------- */
.guide-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;}
.guide-card{
  background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--radius-md);padding:24px;
  transition:transform .26s ease,box-shadow .26s ease;
}
.guide-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-2);}
.guide-num{
  width:34px;height:34px;border-radius:50%;background:var(--c-mint);color:var(--c-green);
  display:flex;align-items:center;justify-content:center;font-weight:700;font-size:14px;margin-bottom:14px;
}
.guide-card h3{font-size:1.06rem;margin-bottom:8px;}
.guide-card p{font-size:14.4px;color:var(--c-muted);margin:0;line-height:1.78;}

/* ---------- reviews ---------- */
.review-empty{
  background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--radius-lg);
  padding:44px 30px;text-align:center;box-shadow:var(--shadow-1);
}
.review-empty .icon-box{margin:0 auto 18px;width:56px;height:56px;font-size:24px;}
.review-empty h3{font-size:1.2rem;margin-bottom:10px;}
.review-empty p{color:var(--c-muted);font-size:15px;max-width:560px;margin:0 auto 20px;}

/* ---------- faq ---------- */
.faq-wrap{max-width:920px;}
.accordion-item{
  background:var(--c-surface);border:1px solid var(--c-line)!important;border-radius:0!important;
  margin-bottom:-1px;
}
.accordion-item:first-child{border-top-left-radius:var(--radius-md)!important;border-top-right-radius:var(--radius-md)!important;}
.accordion-item:last-child{border-bottom-left-radius:var(--radius-md)!important;border-bottom-right-radius:var(--radius-md)!important;margin-bottom:0;}
.accordion-button{
  background:var(--c-surface);color:var(--c-ink);font-weight:600;font-size:16.5px;
  padding:20px 24px;box-shadow:none!important;border-radius:0!important;
  font-family:'PingFang SC','Microsoft YaHei',sans-serif;
}
.accordion-button:not(.collapsed){background:var(--c-mint);color:var(--c-green);}
.accordion-button::after{
  background-image:none;content:"+";font-size:22px;line-height:1;color:var(--c-green);
  transform:none;width:auto;height:auto;transition:transform .25s ease;
  display:flex;align-items:center;justify-content:center;
}
.accordion-button:not(.collapsed)::after{content:"−";transform:rotate(180deg);}
.accordion-body{padding:6px 24px 22px;color:var(--c-muted);font-size:15.4px;line-height:1.85;}
.accordion-button:focus{box-shadow:0 0 0 3px rgba(231,163,60,.35) inset!important;}

/* ---------- form ---------- */
.cta-band{
  border-radius:var(--radius-xl);background:var(--grad-brand);color:#EAF4EF;
  padding:clamp(30px,4vw,52px);display:grid;grid-template-columns:1fr 1.05fr;gap:clamp(24px,3.4vw,46px);
  box-shadow:0 24px 60px rgba(15,61,52,.24);position:relative;overflow:hidden;
}
.cta-band::after{
  content:"";position:absolute;left:-100px;bottom:-140px;width:340px;height:340px;border-radius:50%;
  background:radial-gradient(circle,rgba(231,163,60,.3),transparent 70%);pointer-events:none;
}
.cta-band h2{color:#fff;margin-bottom:16px;position:relative;z-index:2;}
.cta-band p{color:rgba(234,244,239,.88);position:relative;z-index:2;}
.trust-list{display:flex;flex-wrap:wrap;gap:10px;margin-top:22px;position:relative;z-index:2;}
.trust-list span{
  display:inline-flex;align-items:center;gap:7px;font-size:13.2px;
  background:rgba(255,255,255,.14);border:1px solid rgba(255,255,255,.26);
  border-radius:999px;padding:6px 14px;color:#EAF4EF;
}
.form-card{
  position:relative;z-index:2;background:#fff;border-radius:var(--radius-lg);padding:clamp(22px,2.6vw,30px);
  box-shadow:0 18px 44px rgba(0,0,0,.18);
}
.form-row{display:grid;grid-template-columns:1fr 1fr;gap:16px;}
.field{margin-bottom:16px;}
.field label{display:block;font-size:13px;color:var(--c-muted);margin-bottom:7px;font-weight:600;}
.form-control,.form-select{
  width:100%;min-height:48px;border-radius:var(--radius-sm);border:1px solid var(--c-line);
  background:#FDFCF9;font-size:15px;color:var(--c-text);padding:11px 14px;
}
textarea.form-control{min-height:104px;resize:vertical;}
.form-control:focus,.form-select:focus{
  border-color:var(--c-green);background:#fff;
  box-shadow:0 0 0 3px rgba(46,139,120,.18);outline:none;
}
.form-check{display:flex;align-items:flex-start;gap:9px;font-size:13.4px;color:var(--c-muted);line-height:1.6;}
.form-check input{margin-top:3px;width:16px;height:16px;accent-color:var(--c-green);}
.form-card .btn-brand{width:100%;margin-top:6px;}
.form-hint{font-size:12.6px;color:var(--c-muted);margin-top:10px;line-height:1.65;}

/* ---------- footer ---------- */
.site-footer{background:var(--c-ink);color:#D9E7E1;padding:clamp(48px,6vw,76px) 0 0;border-top:1px solid rgba(255,255,255,.1);}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1.2fr 1.1fr;gap:36px;}
.site-footer h4{
  color:#fff;font-size:15px;margin-bottom:16px;font-family:'PingFang SC','Microsoft YaHei',sans-serif;
  font-weight:700;letter-spacing:.4px;
}
.footer-brand{display:flex;align-items:center;gap:12px;margin-bottom:16px;}
.footer-brand .brand-mark{background:rgba(255,255,255,.12);box-shadow:none;}
.footer-brand .brand-main{color:#fff;font-size:17px;}
.footer-brand .brand-sub{color:rgba(217,231,225,.7);}
.site-footer p{font-size:14px;color:rgba(217,231,225,.76);line-height:1.85;}
.footer-list{display:grid;gap:10px;}
.footer-list a{color:rgba(217,231,225,.82);font-size:14.4px;border-bottom:1px solid transparent;transition:color .2s ease,border-color .2s ease;}
.footer-list a:hover{color:var(--c-amber);border-bottom-color:var(--c-amber);}
.footer-bottom{
  margin-top:44px;border-top:1px solid rgba(255,255,255,.12);padding:22px 0 26px;
  display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;align-items:center;
  font-size:13.4px;color:rgba(217,231,225,.62);
}
.footer-bottom .domain{font-variant-numeric:tabular-nums;letter-spacing:.4px;}

/* ---------- responsive ---------- */
@media (max-width:1199.98px){
  .hero-grid{grid-template-columns:1fr;gap:34px;}
  .brand-main{font-size:16px;}
  .nav-links a{padding:10px 10px;font-size:14.4px;}
  .topic-grid{grid-template-columns:repeat(2,1fr);}
  .guide-grid{grid-template-columns:repeat(2,1fr);}
}
@media (max-width:991.98px){
  .nav-links{display:none;}
  .nav-toggle{display:flex;}
  .nav-wrap{min-height:72px;gap:14px;}
  .nav-cta{display:none;}
  .bento{grid-template-columns:repeat(2,1fr);}
  .bento .card-lg,.bento .card-sm{grid-column:span 1;}
  .compare-grid{grid-template-columns:1fr;}
  .timeline{grid-template-columns:repeat(2,1fr);gap:24px;}
  .timeline::before{display:none;}
  .tl-node{padding-top:36px;border-left:1px solid var(--c-line);padding-left:20px;}
  .tl-dot{left:-8px;top:8px;}
  .news-grid{grid-template-columns:1fr;}
  .soft-grid{grid-template-columns:1fr;}
  .steps-grid{grid-template-columns:1fr;}
  .scene-grid{grid-template-columns:1fr;}
  .guarantee-grid{grid-template-columns:1fr;}
  .cta-band{grid-template-columns:1fr;}
  .footer-grid{grid-template-columns:1fr 1fr;}
  .brand-sub{display:none;}
  .hero-panel{padding:20px;}
}
@media (max-width:767.98px){
  body{font-size:16px;}
  .section{padding:48px 0;}
  .hero{padding-top:20px;}
  .hero-card{padding:26px 22px;border-radius:24px;}
  .hero-profile{gap:12px;}
  .hero-follow{margin-left:0;}
  .hero h1{font-size:clamp(1.75rem,7vw,2.4rem);}
  .hero-actions .btn-brand,.hero-actions .btn-amber,.hero-actions .btn-ghost-light{flex:1 1 100%;}
  .card-soft{padding:22px;border-radius:18px;}
  .card-feature{border-radius:20px;}
  .card-row{grid-template-columns:84px 1fr;}
  .form-row{grid-template-columns:1fr;}
  .footer-grid{grid-template-columns:1fr;}
  .footer-bottom{flex-direction:column;align-items:flex-start;}
  .topic-grid,.guide-grid,.bento{grid-template-columns:1fr;}
  .scene-banner{aspect-ratio:16/9;}
  .metric-list strong{font-size:19px;}
  .cta-band{border-radius:22px;padding:26px 20px;}
  .form-card{padding:22px;border-radius:20px;}
  .accordion-button{padding:16px 18px;font-size:15.4px;}
  .accordion-body{padding:4px 18px 18px;font-size:15px;}
  .timeline{grid-template-columns:1fr;}
}
@media (max-width:519.98px){
  .container{padding-left:18px;padding-right:18px;}
  .card-download{flex-direction:column;align-items:flex-start;}
  .card-download .btn-amber{width:100%;}
  .news-side .card-row{grid-template-columns:1fr;}
  .news-side .card-row .thumb{aspect-ratio:16/9;}
}

/* roulang page: article */
:root{
  --c-green:#1E5B4F;
  --c-ink:#122B26;
  --c-teal:#2E8B78;
  --c-amber:#E7A33C;
  --c-coral:#D65F4A;
  --c-mint:#E6F2EC;
  --c-cream:#F7F3EA;
  --c-text:#1D2723;
  --c-muted:#66736D;
  --c-line:#DCE5DF;
  --c-surface:#FFFFFF;
  --grad-brand:linear-gradient(135deg,#0F3D34 0%,#1E5B4F 48%,#2E8B78 100%);
  --grad-warm:linear-gradient(135deg,#E7A33C 0%,#D65F4A 100%);
  --radius-xl:28px;
  --radius-lg:24px;
  --radius-md:20px;
  --radius-sm:14px;
  --shadow-1:0 12px 32px rgba(18,59,52,.08);
  --shadow-2:0 16px 40px rgba(18,59,52,.12);
  --bs-primary:#1E5B4F;
  --bs-body-color:#1D2723;
  --bs-border-color:#DCE5DF;
  --bs-border-radius:16px;
  --bs-link-color:#1E5B4F;
  --bs-link-hover-color:#D65F4A;
  --bs-body-bg:#F7F3EA;
  --bs-font-sans-serif:'PingFang SC','Microsoft YaHei','Noto Sans SC',sans-serif;
}
*,*::before,*::after{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  margin:0;
  font-family:'PingFang SC','Microsoft YaHei','Noto Sans SC',sans-serif;
  font-size:16.5px;
  line-height:1.82;
  color:var(--c-text);
  background:var(--c-cream);
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}
h1,h2,h3,h4{
  font-family:'Songti SC','Noto Serif SC','STSong',serif;
  color:var(--c-ink);
  line-height:1.25;
  margin:0 0 14px;
  font-weight:700;
}
h1{font-size:clamp(2rem,4.4vw,3.1rem);line-height:1.18;}
h2{font-size:clamp(1.5rem,2.5vw,2.1rem);}
h3{font-size:1.28rem;}
p{margin:0 0 1em;}
a{color:var(--c-green);text-decoration:none;transition:color .22s ease,border-color .22s ease;}
a:hover{color:var(--c-coral);}
img{max-width:100%;height:auto;display:block;}
button,input,select,textarea{font-family:inherit;font-size:inherit;color:inherit;}
ul,ol{margin:0;padding:0;}
:focus-visible{outline:3px solid rgba(231,163,60,.55);outline-offset:2px;border-radius:6px;}
.container{
  width:100%;max-width:1240px;margin:0 auto;
  padding-left:24px;padding-right:24px;
}
.section{padding:clamp(56px,7vw,96px) 0;position:relative;}
.section--white{background:var(--c-surface);}
.section--cream{background:var(--c-cream);}
.section--mint{background:var(--c-mint);}
.section--dark{background:var(--grad-brand);color:#EAF4EF;}
.section--dark h2,.section--dark h3{color:#FFFFFF;}
.section-head{max-width:800px;margin-bottom:clamp(26px,3vw,42px);}
.section-head .eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;font-weight:700;letter-spacing:1.2px;color:var(--c-teal);margin-bottom:14px;
}
.section-head .eyebrow::before{content:"";width:22px;height:2px;background:var(--grad-warm);border-radius:2px;}
.section-head p{color:var(--c-muted);font-size:16px;line-height:1.85;max-width:720px;margin-bottom:0;}
/* buttons */
.btn-brand,.btn-ghost,.btn-amber,.btn-ghost-light{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:12px 24px;border-radius:999px;font-weight:600;font-size:15.5px;
  border:1px solid transparent;cursor:pointer;line-height:1.2;min-height:46px;
  transition:transform .22s ease,box-shadow .22s ease,background .22s ease,color .22s ease,border-color .22s ease;
}
.btn-brand{background:var(--grad-brand);color:#fff;box-shadow:0 10px 24px rgba(18,59,52,.22);}
.btn-brand:hover{color:#fff;transform:translateY(-2px);box-shadow:0 16px 34px rgba(18,59,52,.28);}
.btn-amber{background:var(--c-amber);color:#2A1C05;box-shadow:0 10px 24px rgba(231,163,60,.28);}
.btn-amber:hover{background:#F0B159;color:#2A1C05;transform:translateY(-2px);box-shadow:0 16px 34px rgba(231,163,60,.34);}
.btn-ghost{background:transparent;color:var(--c-green);border-color:var(--c-line);}
.btn-ghost:hover{background:var(--c-mint);border-color:var(--c-green);color:var(--c-green);transform:translateY(-2px);}
.btn-ghost-light{background:transparent;color:#F3FBF7;border-color:rgba(255,255,255,.42);}
.btn-ghost-light:hover{background:rgba(255,255,255,.14);color:#fff;border-color:rgba(255,255,255,.7);transform:translateY(-2px);}
.btn-brand:active,.btn-amber:active,.btn-ghost:active{transform:translateY(0);}
/* badges */
.badge-data{
  display:inline-flex;align-items:center;gap:7px;
  background:rgba(231,163,60,.18);color:#4A3308;border:1px solid rgba(231,163,60,.42);
  border-radius:999px;padding:5px 12px;font-size:12.5px;font-weight:600;
  font-variant-numeric:tabular-nums;white-space:nowrap;
}
.badge-data::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--c-amber);flex:0 0 auto;}
.badge-soft{
  display:inline-flex;align-items:center;gap:6px;background:var(--c-mint);color:var(--c-green);
  border-radius:999px;padding:4px 12px;font-size:12.5px;font-weight:600;
}
.badge-outline{
  display:inline-flex;align-items:center;gap:6px;background:transparent;color:var(--c-muted);
  border:1px solid var(--c-line);border-radius:999px;padding:3px 11px;
  font-size:12.5px;font-variant-numeric:tabular-nums;
}
/* header */
.site-header{
  position:sticky;top:0;z-index:1000;background:rgba(247,243,234,.94);
  backdrop-filter:saturate(160%) blur(12px);
  border-bottom:1px solid var(--c-line);
  transition:box-shadow .25s ease,background .25s ease;
}
.site-header.is-scrolled{box-shadow:0 8px 26px rgba(18,59,52,.1);background:rgba(247,243,234,.98);}
.nav-wrap{display:flex;align-items:center;gap:26px;min-height:82px;}
.brand{display:flex;align-items:center;gap:12px;flex:0 0 auto;color:var(--c-ink);}
.brand:hover{color:var(--c-ink);}
.brand-mark{
  width:42px;height:42px;border-radius:14px;background:var(--grad-brand);
  color:#F7F3EA;display:flex;align-items:center;justify-content:center;
  font-family:'Songti SC','Noto Serif SC',serif;font-size:21px;flex:0 0 auto;
  box-shadow:0 8px 18px rgba(18,59,52,.22);
}
.brand-text{display:flex;flex-direction:column;line-height:1.25;}
.brand-main{font-family:'Songti SC','Noto Serif SC',serif;font-size:17px;font-weight:700;color:var(--c-ink);}
.brand-sub{font-size:11.5px;color:var(--c-muted);letter-spacing:.6px;}
.nav-links{display:flex;align-items:center;gap:4px;margin-left:auto;list-style:none;}
.nav-links a{
  position:relative;display:inline-block;padding:10px 14px;font-size:15px;
  color:var(--c-ink);border-radius:10px;
}
.nav-links a::after{
  content:"";position:absolute;left:14px;right:14px;bottom:4px;height:2px;
  background:var(--c-green);transform:scaleX(0);transform-origin:left;
  transition:transform .25s ease;border-radius:2px;
}
.nav-links a:hover{color:var(--c-green);}
.nav-links a:hover::after{transform:scaleX(1);}
.nav-links a.is-active{color:var(--c-green);font-weight:600;}
.nav-links a.is-active::after{transform:scaleX(1);}
.nav-links a.is-active::before{
  content:"";position:absolute;left:14px;bottom:-4px;width:4px;height:4px;border-radius:50%;
  background:var(--c-amber);
}
.nav-actions{display:flex;align-items:center;gap:10px;flex:0 0 auto;}
.nav-icon{
  width:40px;height:40px;border-radius:50%;display:flex;align-items:center;justify-content:center;
  color:var(--c-ink);border:1px solid var(--c-line);background:transparent;transition:all .22s ease;
}
.nav-icon:hover{background:var(--c-mint);color:var(--c-green);border-color:var(--c-green);}
.nav-cta{
  padding:9px 20px;border-radius:999px;border:1px solid var(--c-green);
  color:var(--c-green);font-size:14.5px;font-weight:600;transition:all .22s ease;
}
.nav-cta:hover{background:var(--c-green);color:#F7F3EA;}
.nav-toggle{
  display:none;width:42px;height:42px;border-radius:12px;border:1px solid var(--c-line);
  background:transparent;color:var(--c-ink);align-items:center;justify-content:center;font-size:20px;
}
.nav-toggle:hover{background:var(--c-mint);color:var(--c-green);}
/* offcanvas */
.offcanvas.mobile-nav{background:var(--c-cream);width:min(88vw,340px);}
.mobile-nav .offcanvas-header{border-bottom:1px solid var(--c-line);padding:20px 22px;}
.mobile-nav .offcanvas-title{font-family:'Songti SC','Noto Serif SC',serif;font-size:17px;color:var(--c-ink);}
.mobile-nav .offcanvas-body{padding:12px 14px 28px;}
.mobile-nav-list{list-style:none;margin:0;padding:0;}
.mobile-nav-list a{
  display:flex;align-items:center;gap:10px;padding:14px 14px;border-radius:12px;
  color:var(--c-ink);font-size:15.5px;border-bottom:1px solid rgba(220,229,223,.7);
}
.mobile-nav-list li:last-child a{border-bottom:none;}
.mobile-nav-list a:hover{background:var(--c-mint);color:var(--c-green);}
.mobile-nav-list a.is-active{background:var(--c-mint);color:var(--c-green);font-weight:600;}
.mobile-nav-list a.is-active::before{content:"";width:5px;height:5px;border-radius:50%;background:var(--c-amber);}
.mobile-nav-foot{margin-top:18px;padding:0 14px;font-size:13px;color:var(--c-muted);line-height:1.75;}
/* article head */
.art-head{background:var(--c-cream);padding:clamp(28px,4vw,48px) 0 clamp(20px,3vw,32px);border-bottom:1px solid var(--c-line);}
.crumbs{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13.5px;color:var(--c-muted);margin-bottom:20px;}
.crumbs a{color:var(--c-muted);}
.crumbs a:hover{color:var(--c-green);text-decoration:underline;}
.crumbs .sep{color:#B9C6BF;}
.crumbs .cur{color:var(--c-green);font-weight:600;}
.art-title{max-width:960px;margin-bottom:16px;letter-spacing:.4px;}
.art-lead{
  max-width:820px;font-size:16.5px;color:#41504A;line-height:1.9;margin-bottom:22px;
}
.art-meta{display:flex;flex-wrap:wrap;align-items:center;gap:12px;font-size:13.5px;color:var(--c-muted);}
.art-meta .meta-item{display:inline-flex;align-items:center;gap:6px;}
.art-meta .meta-item i{color:var(--c-teal);}
.share-row{display:flex;align-items:center;gap:10px;margin-top:20px;}
.share-row span{font-size:13px;color:var(--c-muted);}
.share-btn{
  width:38px;height:38px;border-radius:50%;border:1px solid var(--c-line);background:#fff;
  display:inline-flex;align-items:center;justify-content:center;color:var(--c-green);
  transition:all .22s ease;
}
.share-btn:hover{background:var(--c-mint);border-color:var(--c-green);color:var(--c-green);transform:translateY(-2px);}
/* layout */
.art-body{padding:clamp(32px,4.4vw,56px) 0 clamp(48px,6vw,80px);}
.art-layout{display:grid;grid-template-columns:minmax(0,1fr) 320px;gap:clamp(28px,3.4vw,56px);align-items:start;}
.art-main{min-width:0;}
.art-figure{margin:0 0 28px;border-radius:var(--radius-lg);overflow:hidden;border:1px solid var(--c-line);box-shadow:var(--shadow-1);}
.art-figure img{width:100%;aspect-ratio:16/9;object-fit:cover;}
/* points card */
.points-card{
  background:var(--c-mint);border:1px solid #CFE4D9;border-radius:var(--radius-md);
  padding:24px 26px;margin-bottom:32px;
}
.points-card h2{font-size:1.16rem;margin-bottom:14px;color:var(--c-green);}
.points-card ul{list-style:none;margin:0;padding:0;}
.points-card li{
  position:relative;padding-left:20px;margin-bottom:10px;font-size:15.5px;
  color:#2C3A34;line-height:1.8;
}
.points-card li:last-child{margin-bottom:0;}
.points-card li::before{
  content:"";position:absolute;left:0;top:.72em;width:8px;height:8px;border-radius:50%;
  background:var(--c-amber);
}
/* content */
.art-content{font-size:17px;line-height:1.85;color:var(--c-text);max-width:760px;}
.art-content > *:first-child{margin-top:0;}
.art-content h2{
  position:relative;padding-left:16px;font-size:clamp(1.35rem,2.1vw,1.75rem);
  margin:2.2em 0 .85em;line-height:1.35;
}
.art-content h2::before{
  content:"";position:absolute;left:0;top:.16em;bottom:.16em;width:4px;border-radius:3px;
  background:var(--grad-brand);
}
.art-content h3{font-size:1.17rem;margin:1.8em 0 .7em;color:var(--c-ink);}
.art-content p{margin:0 0 1.1em;}
.art-content ul,.art-content ol{padding-left:1.35em;margin:0 0 1.2em;}
.art-content ul li,.art-content ol li{margin-bottom:.5em;}
.art-content a{color:var(--c-green);border-bottom:1px solid rgba(30,91,79,.3);}
.art-content a:hover{color:var(--c-coral);border-color:rgba(214,95,74,.45);}
.art-content blockquote{
  margin:1.6em 0;padding:18px 22px;background:#FBF7EE;border-left:4px solid var(--c-amber);
  border-radius:0 16px 16px 0;color:#3C4943;font-size:16px;
}
.art-content blockquote p:last-child{margin-bottom:0;}
.art-content img{border-radius:18px;margin:1.4em 0;width:100%;}
.art-content figure{margin:1.5em 0;}
.art-content figcaption{font-size:13px;color:var(--c-muted);text-align:center;margin-top:8px;}
.art-content table{width:100%;border-collapse:collapse;margin:1.5em 0;font-size:15px;display:block;overflow-x:auto;}
.art-content th,.art-content td{border:1px solid var(--c-line);padding:10px 14px;text-align:left;white-space:nowrap;}
.art-content th{background:var(--c-mint);color:var(--c-green);font-weight:700;}
.art-content pre{background:var(--c-ink);color:#E6F2EC;padding:16px 18px;border-radius:14px;overflow-x:auto;font-size:14px;}
.art-content hr{border:none;border-top:1px solid var(--c-line);margin:2em 0;}
.art-content strong{color:var(--c-ink);}
/* empty */
.empty-card{
  background:#FBF8F1;border:1px dashed #CBDCD2;border-radius:var(--radius-md);
  padding:44px 28px;text-align:center;
}
.empty-card i{font-size:34px;color:var(--c-teal);}
.empty-card h3{margin:14px 0 8px;font-size:1.15rem;}
.empty-card p{color:var(--c-muted);font-size:15px;max-width:460px;margin:0 auto 20px;}
/* download card */
.download-card{
  position:relative;background:var(--c-surface);border:1px solid var(--c-line);
  border-radius:var(--radius-md);box-shadow:var(--shadow-1);
  padding:26px 28px 26px 32px;margin:44px 0 0;
}
.download-card::before{
  content:"";position:absolute;left:0;top:22px;bottom:22px;width:4px;border-radius:0 4px 4px 0;
  background:var(--grad-warm);
}
.download-card h2{font-size:1.22rem;margin-bottom:6px;}
.download-card .dl-sub{font-size:14px;color:var(--c-muted);margin-bottom:18px;}
.dl-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:14px;margin-bottom:18px;}
.dl-item{background:#FBF8F1;border:1px solid var(--c-line);border-radius:14px;padding:12px 14px;}
.dl-item .k{display:block;font-size:12.5px;color:var(--c-muted);margin-bottom:4px;}
.dl-item .v{font-size:15px;font-weight:600;color:var(--c-ink);font-variant-numeric:tabular-nums;}
.dl-note{
  display:flex;gap:10px;align-items:flex-start;font-size:14px;color:#4B5A53;
  background:var(--c-mint);border-radius:14px;padding:12px 16px;margin-bottom:18px;
}
.dl-note i{color:var(--c-green);font-size:16px;line-height:1.5;}
.dl-actions{display:flex;flex-wrap:wrap;gap:12px;}
/* related */
.block-block{margin-top:clamp(44px,5vw,64px);}
.block-title-row{display:flex;align-items:flex-end;justify-content:space-between;gap:16px;flex-wrap:wrap;margin-bottom:22px;}
.block-title-row h2{margin-bottom:6px;}
.block-title-row p{margin-bottom:0;color:var(--c-muted);font-size:14.5px;}
.related-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:20px;}
.related-card{
  display:flex;flex-direction:column;overflow:hidden;background:var(--c-surface);
  border:1px solid var(--c-line);border-radius:var(--radius-md);box-shadow:var(--shadow-1);
  transition:transform .25s ease,box-shadow .25s ease;height:100%;
}
.related-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-2);}
.related-card .thumb{aspect-ratio:16/10;overflow:hidden;background:linear-gradient(135deg,#EFEFE4,#DDEBE3);}
.related-card .thumb img{width:100%;height:100%;object-fit:cover;transition:transform .35s ease;}
.related-card:hover .thumb img{transform:scale(1.03);}
.related-card .body{padding:16px 18px 18px;display:flex;flex-direction:column;gap:8px;flex:1 1 auto;}
.related-card h3{font-size:1rem;line-height:1.5;margin:0;font-family:'Songti SC','Noto Serif SC',serif;}
.related-card h3 a{color:var(--c-ink);}
.related-card h3 a:hover{color:var(--c-green);}
.related-card .rmeta{display:flex;align-items:center;gap:10px;margin-top:auto;font-size:12.5px;color:var(--c-muted);font-variant-numeric:tabular-nums;}
/* prev next */
.pn-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:18px;}
.pn-card{
  background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--radius-md);
  padding:20px 22px;transition:all .22s ease;box-shadow:var(--shadow-1);min-height:96px;
}
.pn-card:hover{border-color:var(--c-green);box-shadow:var(--shadow-2);transform:translateY(-3px);}
.pn-card .pn-label{display:inline-flex;align-items:center;gap:6px;font-size:12.5px;color:var(--c-teal);font-weight:700;margin-bottom:8px;}
.pn-card .pn-title{font-family:'Songti SC','Noto Serif SC',serif;font-size:1.02rem;color:var(--c-ink);line-height:1.5;margin:0 0 6px;}
.pn-card .pn-time{font-size:12.5px;color:var(--c-muted);font-variant-numeric:tabular-nums;}
.pn-card .pn-empty{font-size:14.5px;color:var(--c-muted);margin:0;}
/* faq */
.faq-wrap{background:var(--c-mint);border-radius:var(--radius-lg);padding:clamp(24px,3vw,38px);}
.faq-wrap h2{margin-bottom:8px;}
.faq-wrap .faq-sub{color:#4E5F57;font-size:15px;margin-bottom:22px;}
.accordion.art-accordion{--bs-accordion-border-width:0;--bs-accordion-bg:transparent;}
.art-accordion .accordion-item{
  background:var(--c-surface);border:1px solid var(--c-line);border-radius:16px !important;
  margin-bottom:12px;overflow:hidden;
}
.art-accordion .accordion-item:last-child{margin-bottom:0;}
.art-accordion .accordion-button{
  background:var(--c-surface);color:var(--c-ink);font-size:16.5px;font-weight:600;
  padding:18px 22px;box-shadow:none !important;border-radius:16px !important;
  font-family:'Songti SC','Noto Serif SC',serif;
}
.art-accordion .accordion-button:not(.collapsed){color:var(--c-green);background:#F2F9F4;}
.art-accordion .accordion-button::after{
  background-image:none;content:"\F4FE";font-family:"bootstrap-icons";
  font-size:15px;color:var(--c-green);transition:transform .25s ease;width:auto;height:auto;
}
.art-accordion .accordion-button:not(.collapsed)::after{transform:rotate(45deg);}
.art-accordion .accordion-body{padding:0 22px 20px;font-size:15.5px;line-height:1.85;color:#41504A;}
/* feedback */
.feedback-card{
  background:var(--grad-brand);border-radius:var(--radius-xl);color:#EAF4EF;
  padding:clamp(26px,3.4vw,44px);display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);
  gap:clamp(24px,3vw,44px);align-items:start;
}
.feedback-card h2{color:#fff;font-size:clamp(1.35rem,2.2vw,1.8rem);margin-bottom:12px;}
.feedback-card p{color:rgba(234,244,239,.86);font-size:15.5px;line-height:1.85;}
.trust-list{list-style:none;padding:0;margin:18px 0 0;display:flex;flex-wrap:wrap;gap:10px;}
.trust-list li{
  display:inline-flex;align-items:center;gap:7px;font-size:13px;color:#DCEDE5;
  background:rgba(255,255,255,.1);border:1px solid rgba(255,255,255,.2);
  border-radius:999px;padding:6px 13px;
}
.trust-list li i{color:var(--c-amber);}
.form-card{background:var(--c-surface);border-radius:var(--radius-md);padding:24px 24px 22px;color:var(--c-text);}
.form-card .fg{margin-bottom:14px;}
.form-card label{display:block;font-size:13px;color:var(--c-muted);margin-bottom:6px;font-weight:600;}
.form-card .form-control,.form-card .form-select{
  width:100%;height:48px;border-radius:14px;border:1px solid var(--c-line);
  background:#FCFAF5;font-size:15px;padding:0 14px;color:var(--c-text);
  transition:border-color .2s ease,box-shadow .2s ease;
}
.form-card textarea.form-control{height:96px;padding:12px 14px;resize:vertical;line-height:1.7;}
.form-card .form-control:focus,.form-card .form-select:focus{
  border-color:var(--c-green);box-shadow:0 0 0 3px rgba(30,91,79,.14);background:#fff;outline:none;
}
.form-check{display:flex;align-items:flex-start;gap:9px;margin-bottom:14px;}
.form-check input{width:17px;height:17px;margin-top:3px;accent-color:var(--c-green);flex:0 0 auto;}
.form-check label{font-size:13px;color:var(--c-muted);font-weight:400;line-height:1.6;margin:0;}
.form-card .btn-brand{width:100%;}
.form-tip{
  display:none;margin-top:14px;background:var(--c-mint);border:1px solid #CBE2D7;
  border-radius:14px;padding:12px 14px;font-size:14px;color:var(--c-green);
}
.form-tip.show{display:block;}
/* back links */
.back-row{
  display:flex;flex-wrap:wrap;gap:22px;align-items:center;
  border-top:1px solid var(--c-line);margin-top:clamp(40px,5vw,56px);padding-top:26px;
}
.back-row a{display:inline-flex;align-items:center;gap:7px;font-size:15px;font-weight:600;}
/* sidebar */
.art-side{position:sticky;top:104px;display:flex;flex-direction:column;gap:20px;}
.side-card{
  background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--radius-md);
  box-shadow:var(--shadow-1);padding:22px;
}
.side-card h3{font-size:1rem;margin-bottom:14px;color:var(--c-ink);}
.toc-list{list-style:none;padding:0;margin:0;}
.toc-list li{margin-bottom:2px;}
.toc-list a{
  display:block;padding:8px 12px;border-left:2px solid var(--c-line);
  font-size:14px;color:#43524B;transition:all .2s ease;border-radius:0 8px 8px 0;
}
.toc-list a:hover{border-left-color:var(--c-green);background:var(--c-mint);color:var(--c-green);}
.side-res{display:flex;flex-direction:column;gap:10px;}
.side-res .row{display:flex;justify-content:space-between;gap:10px;font-size:13.5px;color:var(--c-muted);}
.side-res .row b{color:var(--c-ink);font-weight:600;font-variant-numeric:tabular-nums;}
.side-card .side-cta{width:100%;margin-top:16px;}
.area-tags{display:flex;flex-wrap:wrap;gap:8px;}
.area-tags span{
  display:inline-flex;align-items:center;justify-content:center;
  padding:6px 12px;border-radius:999px;font-size:13px;color:var(--c-green);
  background:var(--c-mint);border:1px solid #CFE4D9;transition:all .2s ease;cursor:default;
}
.area-tags span:hover{background:var(--c-green);color:#F7F3EA;border-color:var(--c-green);}
.side-note{font-size:13.5px;color:var(--c-muted);line-height:1.8;margin:0;}
/* footer */
.site-footer{background:var(--c-ink);color:#B9CCC4;padding:clamp(44px,5vw,68px) 0 26px;border-top:1px solid rgba(255,255,255,.1);}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1.2fr 1.2fr;gap:clamp(22px,3vw,44px);}
.footer-brand{display:flex;align-items:center;gap:12px;margin-bottom:16px;}
.footer-brand .brand-main{color:#F1F7F3;}
.footer-brand .brand-sub{color:#93ADA3;}
.site-footer h4{
  color:#F1F7F3;font-size:15px;margin-bottom:14px;
  font-family:'PingFang SC','Microsoft YaHei',sans-serif;font-weight:700;letter-spacing:.5px;
}
.site-footer p{font-size:13.8px;line-height:1.85;color:#9FB6AC;margin-bottom:0;}
.footer-list{display:flex;flex-direction:column;gap:9px;}
.footer-list a{font-size:13.8px;color:#B9CCC4;width:fit-content;}
.footer-list a:hover{color:var(--c-amber);text-decoration:underline;text-underline-offset:4px;}
.footer-bottom{
  display:flex;flex-wrap:wrap;justify-content:space-between;gap:12px;
  border-top:1px solid rgba(255,255,255,.12);margin-top:clamp(30px,4vw,48px);padding-top:20px;
  font-size:13px;color:#8CA398;
}
.footer-bottom .domain{font-variant-numeric:tabular-nums;letter-spacing:.6px;}
/* responsive */
@media (max-width:1199px){
  .container{max-width:1080px;}
  .art-layout{grid-template-columns:minmax(0,1fr) 290px;gap:32px;}
  .related-grid{gap:16px;}
}
@media (max-width:991px){
  .nav-links{display:none;}
  .nav-toggle{display:inline-flex;}
  .nav-cta{display:none;}
  .nav-wrap{min-height:72px;gap:14px;}
  .brand-main{font-size:15.5px;}
  .brand-sub{font-size:11px;}
  .art-layout{grid-template-columns:minmax(0,1fr);}
  .art-side{position:static;order:2;}
  .related-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
  .dl-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
  .feedback-card{grid-template-columns:minmax(0,1fr);}
  .footer-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
}
@media (max-width:767px){
  body{font-size:16px;}
  .container{padding-left:20px;padding-right:20px;}
  .section{padding:48px 0;}
  .art-title{font-size:clamp(1.65rem,6.4vw,2.2rem);}
  .art-lead{font-size:15.5px;}
  .art-content{font-size:16px;}
  .art-content h2{font-size:1.3rem;padding-left:13px;}
  .points-card{padding:20px;}
  .download-card{padding:22px 20px 22px 24px;}
  .related-grid,.pn-grid{grid-template-columns:minmax(0,1fr);}
  .faq-wrap{padding:22px 18px;border-radius:20px;}
  .art-accordion .accordion-button{font-size:15.5px;padding:16px 18px;}
  .art-accordion .accordion-body{padding:0 18px 18px;}
  .btn-brand,.btn-amber,.btn-ghost{width:100%;}
  .dl-actions{flex-direction:column;}
  .footer-grid{grid-template-columns:minmax(0,1fr);gap:26px;}
  .footer-bottom{flex-direction:column;gap:6px;}
}
@media (max-width:519px){
  .art-meta{font-size:12.5px;gap:9px;}
  .dl-grid{grid-template-columns:minmax(0,1fr);}
  .brand-mark{width:38px;height:38px;font-size:19px;border-radius:12px;}
  .brand-main{font-size:14px;}
  .brand-sub{font-size:10.5px;}
}

/* roulang page: category1 */
:root{
  --c-green:#1E5B4F;
  --c-ink:#122B26;
  --c-teal:#2E8B78;
  --c-amber:#E7A33C;
  --c-coral:#D65F4A;
  --c-mint:#E6F2EC;
  --c-cream:#F7F3EA;
  --c-text:#1D2723;
  --c-muted:#66736D;
  --c-line:#DCE5DF;
  --c-surface:#FFFFFF;
  --grad-brand:linear-gradient(135deg,#0F3D34 0%,#1E5B4F 48%,#2E8B78 100%);
  --grad-warm:linear-gradient(135deg,#E7A33C 0%,#D65F4A 100%);
  --radius-xl:28px;
  --radius-lg:24px;
  --radius-md:20px;
  --radius-sm:14px;
  --shadow-1:0 12px 32px rgba(18,59,52,.08);
  --shadow-2:0 16px 40px rgba(18,59,52,.12);
  --bs-primary:#1E5B4F;
  --bs-body-color:#1D2723;
  --bs-border-color:#DCE5DF;
  --bs-border-radius:16px;
  --bs-link-color:#1E5B4F;
  --bs-link-hover-color:#D65F4A;
  --bs-body-bg:#F7F3EA;
  --bs-font-sans-serif:'PingFang SC','Microsoft YaHei','Noto Sans SC',sans-serif;
}
*,*::before,*::after{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  margin:0;
  font-family:'PingFang SC','Microsoft YaHei','Noto Sans SC',sans-serif;
  font-size:16.5px;
  line-height:1.82;
  color:var(--c-text);
  background:var(--c-cream);
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}
h1,h2,h3,h4{
  font-family:'Songti SC','Noto Serif SC','STSong',serif;
  color:var(--c-ink);
  line-height:1.28;
  margin:0 0 .6em;
  font-weight:700;
}
h1{font-size:clamp(2rem,4.4vw,4rem);line-height:1.15;}
h2{font-size:clamp(1.5rem,2.5vw,2.3rem);line-height:1.25;}
h3{font-size:1.25rem;}
h4{font-size:1.05rem;}
p{margin:0 0 1em;}
a{color:var(--c-green);text-decoration:none;transition:color .22s ease;}
a:hover{color:var(--c-coral);}
img{max-width:100%;display:block;}
ul,ol{margin:0;padding:0;list-style:none;}
button,input,select,textarea{font-family:inherit;font-size:inherit;color:inherit;}
a:focus-visible,button:focus-visible,.accordion-button:focus-visible{
  outline:3px solid rgba(231,163,60,.55);
  outline-offset:2px;
  border-radius:8px;
}
.container{
  width:100%;max-width:1240px;margin-left:auto;margin-right:auto;
  padding-left:24px;padding-right:24px;
}
.section{padding:clamp(56px,7vw,96px) 0;position:relative;}
.section--white{background:var(--c-surface);}
.section--cream{background:var(--c-cream);}
.section--mint{background:var(--c-mint);}
.section--dark{background:var(--grad-brand);color:#EAF4EF;}
.section--dark h2,.section--dark h3{color:#FFFFFF;}
.section-dark-p{color:rgba(234,244,239,.86);}
.section-head{max-width:800px;margin-bottom:clamp(28px,3.4vw,46px);}
.section-head .eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;font-weight:700;letter-spacing:1.2px;
  color:var(--c-teal);margin-bottom:14px;
}
.section-head .eyebrow::before{content:"";width:22px;height:2px;background:var(--grad-warm);border-radius:2px;}
.section-head h2{margin-bottom:14px;}
.section-head p{color:var(--c-muted);font-size:16px;line-height:1.85;max-width:740px;margin-bottom:0;}
.section--dark .section-head p{color:rgba(234,244,239,.86);}

/* ---------- buttons ---------- */
.btn-brand,.btn-ghost,.btn-amber{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:12px 24px;border-radius:999px;font-weight:600;font-size:15.5px;
  border:1px solid transparent;cursor:pointer;line-height:1.2;min-height:46px;
  transition:transform .22s ease,box-shadow .22s ease,background .22s ease,color .22s ease,border-color .22s ease;
}
.btn-brand{background:var(--grad-brand);color:#fff;box-shadow:0 10px 24px rgba(18,59,52,.22);}
.btn-brand:hover{color:#fff;transform:translateY(-2px);box-shadow:0 16px 34px rgba(18,59,52,.28);}
.btn-amber{background:var(--c-amber);color:#2A1C05;box-shadow:0 10px 24px rgba(231,163,60,.28);}
.btn-amber:hover{background:#F0B159;color:#2A1C05;transform:translateY(-2px);box-shadow:0 16px 34px rgba(231,163,60,.34);}
.btn-ghost{background:transparent;color:var(--c-green);border-color:var(--c-line);}
.btn-ghost:hover{background:var(--c-mint);border-color:var(--c-green);color:var(--c-green);transform:translateY(-2px);}
.btn-ghost-light{background:transparent;color:#F3FBF7;border-color:rgba(255,255,255,.42);}
.btn-ghost-light:hover{background:rgba(255,255,255,.14);color:#fff;border-color:rgba(255,255,255,.7);transform:translateY(-2px);}
.btn-brand:active,.btn-amber:active,.btn-ghost:active{transform:translateY(0);}
.btn-brand:disabled,.btn-amber:disabled,.btn-ghost:disabled{opacity:.55;cursor:not-allowed;transform:none;box-shadow:none;}

/* ---------- badges ---------- */
.badge-data{
  display:inline-flex;align-items:center;gap:7px;
  background:rgba(231,163,60,.18);color:#4A3308;
  border:1px solid rgba(231,163,60,.42);
  border-radius:999px;padding:5px 12px;font-size:12.5px;font-weight:600;
  font-variant-numeric:tabular-nums;white-space:nowrap;
}
.badge-data::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--c-amber);flex:0 0 auto;}
.badge-soft{
  display:inline-flex;align-items:center;gap:6px;
  background:var(--c-mint);color:var(--c-green);
  border-radius:999px;padding:4px 12px;font-size:12.5px;font-weight:600;white-space:nowrap;
}
.badge-outline{
  display:inline-flex;align-items:center;gap:6px;
  background:transparent;color:var(--c-muted);
  border:1px solid var(--c-line);border-radius:999px;
  padding:3px 11px;font-size:12.5px;font-variant-numeric:tabular-nums;white-space:nowrap;
}

/* ---------- header ---------- */
.site-header{
  position:sticky;top:0;z-index:1000;
  background:rgba(247,243,234,.94);
  backdrop-filter:saturate(160%) blur(12px);
  border-bottom:1px solid var(--c-line);
  transition:box-shadow .25s ease,background .25s ease;
}
.site-header.is-scrolled{box-shadow:0 8px 26px rgba(18,59,52,.1);background:rgba(247,243,234,.98);}
.nav-wrap{display:flex;align-items:center;gap:26px;min-height:82px;}
.brand{display:flex;align-items:center;gap:12px;flex:0 0 auto;color:var(--c-ink);}
.brand:hover{color:var(--c-ink);}
.brand-mark{
  width:42px;height:42px;border-radius:14px;background:var(--grad-brand);
  color:#F7F3EA;display:flex;align-items:center;justify-content:center;
  font-family:'Songti SC','Noto Serif SC',serif;font-size:21px;flex:0 0 auto;
  box-shadow:0 8px 18px rgba(18,59,52,.22);
}
.brand-text{display:flex;flex-direction:column;line-height:1.25;}
.brand-main{font-family:'Songti SC','Noto Serif SC',serif;font-size:17px;font-weight:700;color:var(--c-ink);}
.brand-sub{font-size:11.5px;color:var(--c-muted);letter-spacing:.6px;}
.nav-links{display:flex;align-items:center;gap:2px;margin-left:auto;}
.nav-links a{
  position:relative;display:inline-block;padding:10px 13px;font-size:15px;
  color:var(--c-ink);border-radius:10px;
}
.nav-links a::after{
  content:"";position:absolute;left:13px;right:13px;bottom:4px;height:2px;
  background:var(--c-green);transform:scaleX(0);transform-origin:left;
  transition:transform .25s ease;border-radius:2px;
}
.nav-links a:hover{color:var(--c-green);}
.nav-links a:hover::after{transform:scaleX(1);}
.nav-links a.is-active{color:var(--c-green);font-weight:600;}
.nav-links a.is-active::after{transform:scaleX(1);}
.nav-links a.is-active::before{
  content:"";position:absolute;left:50%;bottom:-5px;transform:translateX(-50%);
  width:4px;height:4px;border-radius:50%;background:var(--c-amber);
}
.nav-actions{display:flex;align-items:center;gap:8px;flex:0 0 auto;}
.nav-icon{
  width:40px;height:40px;display:inline-flex;align-items:center;justify-content:center;
  border-radius:12px;color:var(--c-ink);border:1px solid transparent;
  transition:background .2s ease,color .2s ease,border-color .2s ease;
}
.nav-icon:hover{background:var(--c-mint);color:var(--c-green);border-color:var(--c-line);}
.nav-cta{
  display:inline-flex;align-items:center;justify-content:center;
  padding:9px 20px;border-radius:999px;font-size:14.5px;font-weight:600;
  color:#fff;background:var(--grad-brand);box-shadow:0 8px 20px rgba(18,59,52,.2);
  transition:transform .2s ease,box-shadow .2s ease;
}
.nav-cta:hover{color:#fff;transform:translateY(-2px);box-shadow:0 12px 26px rgba(18,59,52,.26);}
.nav-toggle{
  display:none;width:40px;height:40px;border-radius:12px;border:1px solid var(--c-line);
  background:#fff;color:var(--c-ink);align-items:center;justify-content:center;font-size:20px;
}
.nav-toggle:hover{border-color:var(--c-green);color:var(--c-green);}

/* ---------- offcanvas ---------- */
.mobile-nav{background:var(--c-cream);width:min(340px,86vw);}
.mobile-nav .offcanvas-header{border-bottom:1px solid var(--c-line);padding:18px 20px;}
.mobile-nav .offcanvas-body{padding:12px 12px 28px;}
.m-list li{border-bottom:1px solid var(--c-line);}
.m-list li:last-child{border-bottom:0;}
.m-list a{
  display:flex;align-items:center;gap:10px;padding:14px 12px;
  color:var(--c-ink);font-size:15.5px;border-radius:12px;
}
.m-list a:hover{background:var(--c-mint);color:var(--c-green);}
.m-list a.is-active{
  background:var(--c-mint);color:var(--c-green);font-weight:600;
}
.m-list a.is-active::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--c-amber);}

/* ---------- category header ---------- */
.cat-head{
  background:var(--c-cream);
  border-bottom:1px solid var(--c-line);
  padding:clamp(34px,4vw,58px) 0 clamp(30px,3.6vw,48px);
}
.crumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13.5px;color:var(--c-muted);margin-bottom:22px;}
.crumb a{color:var(--c-muted);}
.crumb a:hover{color:var(--c-green);}
.crumb span.sep{color:#B4C0B9;}
.crumb .now{color:var(--c-ink);font-weight:600;}
.cat-head-grid{display:grid;grid-template-columns:1.55fr 1fr;gap:clamp(24px,3.4vw,48px);align-items:start;}
.cat-head h1{margin-bottom:16px;}
.cat-head h1 em{font-style:normal;color:var(--c-teal);}
.cat-desc{color:var(--c-muted);font-size:16px;line-height:1.85;max-width:680px;margin-bottom:18px;}
.cat-tags{display:flex;flex-wrap:wrap;gap:10px;}
.cat-note{
  background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--radius-lg);
  padding:22px 24px;box-shadow:var(--shadow-1);
}
.cat-note h3{font-size:1.02rem;margin-bottom:14px;display:flex;align-items:center;gap:8px;}
.cat-note h3 i{color:var(--c-teal);}
.cat-note ul li{
  display:flex;gap:10px;align-items:flex-start;
  font-size:14.5px;color:var(--c-muted);line-height:1.75;padding:7px 0;
  border-bottom:1px dashed var(--c-line);
}
.cat-note ul li:last-child{border-bottom:0;}
.cat-note ul li::before{
  content:"";flex:0 0 auto;width:6px;height:6px;border-radius:50%;
  background:var(--c-amber);margin-top:9px;
}

/* ---------- filter bar ---------- */
.filter-bar{
  margin-top:clamp(24px,3vw,36px);
  background:var(--c-surface);border:1px solid var(--c-line);
  border-radius:var(--radius-lg);padding:16px 20px;box-shadow:var(--shadow-1);
  display:flex;flex-wrap:wrap;gap:14px 26px;align-items:center;
}
.filter-block{display:flex;align-items:center;gap:10px;flex-wrap:wrap;min-width:0;}
.filter-label{font-size:13px;color:var(--c-muted);font-weight:600;letter-spacing:.4px;white-space:nowrap;}
.pill-row{display:flex;gap:8px;flex-wrap:wrap;overflow-x:auto;padding-bottom:2px;max-width:100%;}
.pill{
  border:1px solid var(--c-line);background:#fff;color:var(--c-text);
  border-radius:999px;padding:6px 14px;font-size:13.5px;cursor:pointer;
  line-height:1.4;transition:all .2s ease;white-space:nowrap;
}
.pill:hover{border-color:var(--c-green);color:var(--c-green);}
.pill.is-on{background:var(--c-green);border-color:var(--c-green);color:#fff;box-shadow:0 6px 16px rgba(30,91,79,.22);}
.filter-select{
  border:1px solid var(--c-line);border-radius:999px;background:#fff;
  padding:7px 30px 7px 14px;font-size:13.5px;color:var(--c-text);cursor:pointer;
  appearance:none;
  background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8' viewBox='0 0 12 8'%3E%3Cpath d='M1 1l5 5 5-5' stroke='%2366736D' stroke-width='1.6' fill='none' stroke-linecap='round'/%3E%3C/svg%3E");
  background-repeat:no-repeat;background-position:right 13px center;
  transition:border-color .2s ease,box-shadow .2s ease;
}
.filter-select:focus{border-color:var(--c-green);box-shadow:0 0 0 3px rgba(230,242,236,.9);outline:none;}
.filter-right{margin-left:auto;display:flex;align-items:center;gap:8px;}
.sort-link{
  border-radius:999px;padding:6px 16px;font-size:13.5px;border:1px solid var(--c-line);
  background:#fff;color:var(--c-muted);cursor:pointer;transition:all .2s ease;
}
.sort-link.is-on{background:var(--c-mint);border-color:var(--c-green);color:var(--c-green);font-weight:600;}
.sort-link:hover{color:var(--c-green);border-color:var(--c-green);}

/* ---------- post grid ---------- */
.post-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:24px;}
.post-card{
  background:var(--c-surface);border:1px solid var(--c-line);
  border-radius:var(--radius-lg);overflow:hidden;display:flex;flex-direction:column;
  box-shadow:var(--shadow-1);
  transition:transform .25s ease,box-shadow .25s ease;
}
.post-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-2);}
.post-thumb{
  display:block;aspect-ratio:16/10;overflow:hidden;
  background:linear-gradient(135deg,var(--c-cream) 0%,var(--c-mint) 100%);
}
.post-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .4s ease;}
.post-card:hover .post-thumb img{transform:scale(1.03);}
.post-body{padding:20px 22px 22px;display:flex;flex-direction:column;gap:10px;flex:1;}
.post-meta{display:flex;flex-wrap:wrap;gap:8px;align-items:center;}
.post-title{font-size:1.14rem;line-height:1.5;margin:0;}
.post-title a{color:var(--c-ink);}
.post-title a:hover{color:var(--c-green);}
.post-excerpt{
  color:var(--c-muted);font-size:14.5px;line-height:1.78;margin:0;
  display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden;
}
.post-link{
  margin-top:auto;display:inline-flex;align-items:center;gap:6px;
  font-size:14px;font-weight:600;color:var(--c-green);
}
.post-link i{transition:transform .2s ease;}
.post-link:hover{color:var(--c-coral);}
.post-link:hover i{transform:translateX(4px);}
.post-card--lead{grid-column:1/-1;flex-direction:row;}
.post-card--lead .post-thumb{flex:0 0 46%;width:46%;aspect-ratio:auto;min-height:280px;}
.post-card--lead .post-body{padding:26px 30px;}
.post-card--lead .post-title{font-size:1.4rem;}
.post-card--lead .post-excerpt{-webkit-line-clamp:4;font-size:15px;}

.list-more{display:flex;justify-content:center;margin-top:clamp(26px,3vw,40px);}
.more-link{
  display:inline-flex;align-items:center;gap:8px;
  font-size:15px;font-weight:600;color:var(--c-green);
  padding:10px 22px;border-radius:999px;border:1px solid var(--c-line);background:#fff;
  transition:all .22s ease;
}
.more-link:hover{color:var(--c-green);background:var(--c-mint);border-color:var(--c-green);}
.more-link i{transition:transform .2s ease;}
.more-link:hover i{transform:translateX(4px);}

.empty-state{
  grid-column:1/-1;background:var(--c-cream);border:1px dashed var(--c-line);
  border-radius:var(--radius-lg);padding:52px 24px;text-align:center;color:var(--c-muted);
}
.empty-state i{font-size:34px;color:var(--c-teal);display:block;margin-bottom:12px;}
.empty-state p{margin:0;font-size:15px;}

/* ---------- pick list ---------- */
.pick-wrap{display:grid;grid-template-columns:.9fr 1.6fr;gap:clamp(24px,3.4vw,56px);align-items:start;}
.pick-wrap .section-head{margin-bottom:0;}
.pick-list li{
  border-bottom:1px solid var(--c-line);padding:16px 0;
  display:flex;flex-wrap:wrap;gap:8px 16px;align-items:center;justify-content:space-between;
  transition:border-color .2s ease;
}
.pick-list li:first-child{padding-top:0;}
.pick-list li:last-child{border-bottom:0;padding-bottom:0;}
.pick-list a{
  font-family:'Songti SC','Noto Serif SC',serif;
  font-size:1.06rem;color:var(--c-ink);font-weight:700;line-height:1.5;
  position:relative;flex:1 1 320px;
}
.pick-list a::after{
  content:"";position:absolute;left:0;right:0;bottom:-3px;height:2px;
  background:var(--c-green);transform:scaleX(0);transform-origin:left;
  transition:transform .25s ease;
}
.pick-list a:hover{color:var(--c-green);}
.pick-list a:hover::after{transform:scaleX(1);}
.pick-meta{display:flex;gap:8px;align-items:center;flex-wrap:wrap;}

/* ---------- guide list ---------- */
.guide-wrap{display:grid;grid-template-columns:.9fr 1.6fr;gap:clamp(24px,3.4vw,56px);align-items:start;}
.guide-list{display:flex;flex-direction:column;gap:18px;}
.guide-item{
  display:flex;gap:16px;align-items:flex-start;
  background:var(--c-surface);border:1px solid var(--c-line);
  border-radius:var(--radius-md);padding:20px 22px;box-shadow:var(--shadow-1);
  transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease;
}
.guide-item:hover{transform:translateY(-3px);box-shadow:var(--shadow-2);border-color:#C8D8D0;}
.guide-num{
  flex:0 0 auto;width:34px;height:34px;border-radius:50%;
  background:rgba(231,163,60,.18);border:1px solid rgba(231,163,60,.45);
  color:#8A5B10;display:flex;align-items:center;justify-content:center;
  font-size:14px;font-weight:700;font-variant-numeric:tabular-nums;
}
.guide-item h3{font-size:1.04rem;margin-bottom:6px;}
.guide-item p{color:var(--c-muted);font-size:14.5px;line-height:1.78;margin:0;}

/* ---------- area pills ---------- */
.area-wrap{display:grid;grid-template-columns:1.55fr 1fr;gap:clamp(24px,3.4vw,48px);align-items:center;}
.area-pills{display:flex;flex-wrap:wrap;gap:12px;}
.area-pill{
  display:inline-flex;align-items:center;gap:8px;
  padding:11px 22px;border-radius:999px;font-size:15px;
  background:#fff;border:1px solid var(--c-line);color:var(--c-ink);
  cursor:pointer;transition:all .2s ease;
}
.area-pill:hover{border-color:var(--c-green);color:var(--c-green);transform:translateY(-2px);}
.area-pill.is-on{background:var(--c-green);border-color:var(--c-green);color:#fff;box-shadow:0 8px 20px rgba(30,91,79,.22);}
.area-aside{
  background:rgba(255,255,255,.72);border:1px solid var(--c-line);
  border-radius:var(--radius-lg);padding:24px 26px;
}
.area-aside h3{font-size:1.05rem;margin-bottom:10px;}
.area-aside p{color:var(--c-muted);font-size:14.5px;line-height:1.8;margin-bottom:14px;}

/* ---------- download cards ---------- */
.download-list{display:flex;flex-direction:column;gap:18px;}
.card-download{
  background:var(--c-surface);border:1px solid var(--c-line);border-left:4px solid var(--c-amber);
  border-radius:var(--radius-md);padding:20px 24px;
  display:flex;gap:18px;align-items:center;justify-content:space-between;flex-wrap:wrap;
  box-shadow:var(--shadow-1);
  transition:transform .22s ease,box-shadow .22s ease;
}
.card-download:hover{transform:translateY(-3px);box-shadow:var(--shadow-2);}
.dl-main{flex:1 1 380px;min-width:0;}
.dl-main h3{font-size:1.06rem;margin:8px 0 6px;line-height:1.5;}
.dl-main h3 a{color:var(--c-ink);}
.dl-main h3 a:hover{color:var(--c-green);}
.dl-main p{color:var(--c-muted);font-size:14.5px;line-height:1.75;margin:0;}
.dl-side{display:flex;align-items:center;gap:12px;flex-wrap:wrap;}

/* ---------- safety strip ---------- */
.safety-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:18px;}
.safety-item{
  background:#fff;border:1px solid var(--c-line);border-radius:var(--radius-md);
  padding:22px 20px;transition:box-shadow .22s ease,transform .22s ease;
}
.safety-item:hover{box-shadow:var(--shadow-1);transform:translateY(-2px);}
.safety-item i{
  display:inline-flex;align-items:center;justify-content:center;
  width:42px;height:42px;border-radius:14px;background:var(--c-mint);
  color:var(--c-green);font-size:19px;margin-bottom:14px;
  transition:background .22s ease,color .22s ease;
}
.safety-item:hover i{background:rgba(231,163,60,.18);color:#8A5B10;}
.safety-item h3{font-size:1rem;margin-bottom:6px;}
.safety-item p{color:var(--c-muted);font-size:14px;line-height:1.75;margin:0;}

/* ---------- faq ---------- */
.faq-acc{border-radius:var(--radius-md);overflow:hidden;border:1px solid var(--c-line);background:#fff;}
.faq-acc .accordion-item{border:0;border-bottom:1px solid var(--c-line);background:transparent;}
.faq-acc .accordion-item:last-child{border-bottom:0;}
.faq-acc .accordion-button{
  background:#fff;color:var(--c-ink);font-size:16.5px;font-weight:600;
  padding:20px 24px;box-shadow:none;border-radius:0;line-height:1.6;
}
.faq-acc .accordion-button:not(.collapsed){
  background:var(--c-mint);color:var(--c-green);box-shadow:none;
}
.faq-acc .accordion-button:focus{box-shadow:none;border-color:transparent;}
.faq-acc .accordion-button::after{
  background-image:none;
  content:"\F4FE";
  font-family:"bootstrap-icons";
  font-size:18px;color:var(--c-teal);
  transition:transform .25s ease;
  width:auto;height:auto;line-height:1;
}
.faq-acc .accordion-button:not(.collapsed)::after{transform:rotate(45deg);color:var(--c-green);}
.faq-acc .accordion-body{
  padding:6px 24px 22px;color:var(--c-muted);font-size:15px;line-height:1.85;background:#fff;
}
.faq-acc .accordion-collapse.show .accordion-body{background:#FBFDFB;}

/* ---------- cta ---------- */
.cta-band{
  background:var(--grad-brand);border-radius:var(--radius-xl);
  padding:clamp(32px,4.4vw,58px);color:#EAF4EF;
  display:grid;grid-template-columns:1.4fr 1fr;gap:clamp(24px,3.4vw,48px);align-items:center;
  box-shadow:0 22px 50px rgba(18,59,52,.24);position:relative;overflow:hidden;
}
.cta-band::after{
  content:"";position:absolute;right:-60px;top:-70px;width:260px;height:260px;border-radius:50%;
  background:radial-gradient(circle,rgba(231,163,60,.35) 0%,rgba(231,163,60,0) 70%);
  pointer-events:none;
}
.cta-band h2{color:#fff;margin-bottom:14px;}
.cta-band p{color:rgba(234,244,239,.86);margin-bottom:20px;line-height:1.85;}
.cta-actions{display:flex;flex-wrap:wrap;gap:12px;}
.cta-side{display:flex;flex-direction:column;gap:12px;position:relative;z-index:1;}
.cta-chip{
  display:flex;align-items:center;gap:10px;
  background:rgba(255,255,255,.1);border:1px solid rgba(255,255,255,.2);
  border-radius:var(--radius-sm);padding:13px 16px;font-size:14.5px;color:#EAF4EF;
}
.cta-chip i{color:var(--c-amber);font-size:17px;}

/* ---------- footer ---------- */
.site-footer{
  background:var(--c-ink);color:#D7E4DE;padding:64px 0 26px;
  border-top:1px solid rgba(255,255,255,.1);
}
.site-footer h4{color:#fff;font-size:1rem;margin-bottom:14px;font-family:'Songti SC','Noto Serif SC',serif;}
.site-footer p{color:rgba(215,228,222,.78);font-size:14px;line-height:1.85;margin-bottom:10px;}
.site-footer a{color:rgba(215,228,222,.86);}
.site-footer a:hover{color:var(--c-amber);text-decoration:underline;text-underline-offset:3px;}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1.2fr 1.2fr;gap:clamp(24px,3.4vw,44px);}
.footer-brand{display:flex;align-items:center;gap:12px;margin-bottom:16px;}
.footer-brand .brand-main{color:#fff;}
.footer-brand .brand-sub{color:rgba(215,228,222,.7);}
.footer-list{display:flex;flex-direction:column;gap:9px;}
.footer-list a{font-size:14px;}
.footer-bottom{
  margin-top:44px;padding-top:22px;border-top:1px solid rgba(255,255,255,.12);
  display:flex;flex-wrap:wrap;gap:10px;justify-content:space-between;
  font-size:13.5px;color:rgba(215,228,222,.66);font-variant-numeric:tabular-nums;
}
.footer-bottom .domain{letter-spacing:.6px;}

/* ---------- responsive ---------- */
@media (max-width:1199.98px){
  .container{max-width:1080px;}
  .nav-links a{padding:10px 10px;font-size:14.5px;}
  .post-grid{gap:20px;}
}
@media (max-width:991.98px){
  .nav-links,.nav-cta{display:none;}
  .nav-toggle{display:inline-flex;}
  .nav-wrap{min-height:72px;gap:16px;}
  .cat-head-grid{grid-template-columns:1fr;}
  .post-grid{grid-template-columns:1fr;}
  .post-card--lead{flex-direction:column;}
  .post-card--lead .post-thumb{width:100%;flex:0 0 auto;aspect-ratio:16/9;min-height:0;}
  .post-card--lead .post-body{padding:22px;}
  .pick-wrap,.guide-wrap,.area-wrap{grid-template-columns:1fr;}
  .safety-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
  .cta-band{grid-template-columns:1fr;}
  .footer-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
  .filter-right{margin-left:0;}
}
@media (max-width:767.98px){
  body{font-size:16px;}
  .container{padding-left:20px;padding-right:20px;}
  .section{padding:48px 0;}
  .cat-head{padding:26px 0 32px;}
  .brand-main{font-size:15px;}
  .brand-sub{font-size:10.5px;}
  .brand-mark{width:38px;height:38px;font-size:19px;border-radius:12px;}
  .btn-brand,.btn-amber,.btn-ghost{min-height:46px;width:100%;}
  .cta-actions .btn-brand,.cta-actions .btn-ghost-light{width:100%;}
  .filter-bar{padding:14px 16px;gap:12px;}
  .pill-row{flex-wrap:nowrap;overflow-x:auto;-webkit-overflow-scrolling:touch;}
  .post-grid{gap:18px;}
  .post-card,.post-card--lead{border-radius:20px;}
  .pick-list a{flex:1 1 100%;font-size:1rem;}
  .card-download{padding:18px 18px 18px 16px;}
  .dl-side{width:100%;justify-content:flex-start;}
  .safety-grid{grid-template-columns:1fr;}
  .faq-acc .accordion-button{padding:16px 18px;font-size:15.5px;}
  .faq-acc .accordion-body{padding:4px 18px 18px;}
  .footer-grid{grid-template-columns:1fr;}
  .footer-bottom{flex-direction:column;}
  .cta-band{padding:28px 22px;border-radius:22px;}
}