/* roulang page: index */
:root{
  --c-primary:#C2571A;
  --c-primary-dark:#9A4314;
  --c-green:#2E6B4E;
  --c-danger:#B3352B;
  --c-ink:#1A1E1C;
  --c-ink-2:#5A605C;
  --c-ink-3:#8A8F8B;
  --c-paper:#F7F5F0;
  --c-sand:#EFEBE2;
  --c-dark:#14181A;
  --c-line:#E2DCD1;
  --c-chip:#F3E7DA;
  --c-chip-green:#E4EDE7;
  --radius-card:12px;
  --radius-btn:8px;
  --radius-img:10px;
  --shadow-1:0 1px 2px rgba(20,24,26,.05);
  --shadow-2:0 10px 28px -14px rgba(20,24,26,.22);
  --font-base:-apple-system,"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Source Han Sans SC",sans-serif;
  --font-mono:ui-monospace,"Roboto Mono",Menlo,Consolas,monospace;
  --space-1:8px; --space-2:16px; --space-3:24px; --space-4:32px; --space-5:48px; --space-6:72px;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;}
body{
  margin:0;
  font-family:var(--font-base);
  font-size:16px;
  line-height:1.85;
  color:var(--c-ink);
  background:var(--c-paper);
  letter-spacing:.01em;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;height:auto;display:block;}
a{color:var(--c-green);text-decoration:none;transition:color .18s ease,background-color .18s ease,border-color .18s ease,box-shadow .22s ease,transform .18s ease;}
a:hover{color:var(--c-primary);}
ul,ol{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4{margin:0;color:var(--c-ink);letter-spacing:.005em;font-weight:700;}
h1{font-size:clamp(28px,3.6vw,44px);line-height:1.3;}
h2{font-size:clamp(22px,2.4vw,30px);line-height:1.35;}
h3{font-size:19px;line-height:1.45;}
p{margin:0 0 1.05em;}
p:last-child{margin-bottom:0;}
button,input,select,textarea{font-family:inherit;font-size:inherit;}
:focus-visible{outline:2px solid var(--c-primary);outline-offset:2px;}
.site-container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px;}
.site-section{padding:72px 0;}
.section-sand{background:var(--c-sand);}
.section-paper{background:var(--c-paper);}
.section-line-top{border-top:1px solid var(--c-line);}
.section-head{max-width:780px;margin-bottom:36px;}
.section-head h2{margin-bottom:12px;}
.section-head p{color:var(--c-ink-2);font-size:15px;line-height:1.8;}
.eyebrow{
  display:inline-block;font-size:12px;line-height:1;letter-spacing:.08em;
  color:var(--c-primary);background:var(--c-chip);border-radius:999px;
  padding:6px 12px;margin-bottom:14px;font-weight:600;
}
.tag{
  display:inline-block;font-size:12px;line-height:1;padding:6px 10px;border-radius:4px;
  background:var(--c-chip);color:var(--c-primary);font-weight:600;
}
.tag-green{background:var(--c-chip-green);color:var(--c-green);}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:44px;padding:0 20px;border-radius:var(--radius-btn);
  font-size:15px;font-weight:600;line-height:1.2;cursor:pointer;
  border:1px solid transparent;transition:all .18s ease;
}
.btn-primary{background:var(--c-primary);color:#fff;border-color:var(--c-primary);}
.btn-primary:hover{background:var(--c-primary-dark);border-color:var(--c-primary-dark);color:#fff;transform:translateY(-1px);}
.btn-primary:active{transform:translateY(0);box-shadow:inset 0 2px 6px rgba(0,0,0,.18);}
.btn-ghost{background:#fff;color:var(--c-ink);border-color:var(--c-line);}
.btn-ghost:hover{background:var(--c-chip);border-color:var(--c-primary);color:var(--c-primary);}
.btn-outline-light{background:transparent;color:#F2EDE4;border-color:rgba(255,255,255,.34);}
.btn-outline-light:hover{background:rgba(255,255,255,.10);border-color:#fff;color:#fff;}
.btn-green{background:var(--c-green);color:#fff;border-color:var(--c-green);}
.btn-green:hover{background:#245740;border-color:#245740;color:#fff;transform:translateY(-1px);}
.btn-sm{min-height:38px;padding:0 16px;font-size:14px;}

/* header */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(247,245,240,.97);
  border-bottom:1px solid var(--c-line);
  transition:box-shadow .22s ease,background-color .22s ease;
}
.site-header.is-scrolled{box-shadow:0 6px 18px -12px rgba(20,24,26,.35);background:rgba(247,245,240,.99);}
.nav-wrap{display:flex;align-items:center;gap:20px;min-height:68px;padding-top:10px;padding-bottom:10px;flex-wrap:wrap;}
.brand{display:flex;flex-direction:column;line-height:1.15;flex:0 0 auto;}
.brand-mark{font-size:19px;font-weight:800;color:var(--c-ink);letter-spacing:.02em;}
.brand-sub{font-size:11px;color:var(--c-ink-3);letter-spacing:.16em;margin-top:4px;}
.brand:hover .brand-mark{color:var(--c-primary);}
.nav-chips{display:flex;align-items:center;gap:8px;flex:1 1 auto;min-width:0;overflow-x:auto;scrollbar-width:none;padding:2px 0;}
.nav-chips::-webkit-scrollbar{display:none;}
.chip-link{
  flex:0 0 auto;display:inline-flex;align-items:center;height:36px;padding:0 16px;
  border-radius:999px;border:1px solid var(--c-line);background:#fff;color:var(--c-ink-2);
  font-size:14px;font-weight:600;white-space:nowrap;
}
.chip-link:hover{color:var(--c-primary);border-color:var(--c-primary);background:var(--c-chip);}
.chip-link.is-active{background:var(--c-primary);border-color:var(--c-primary);color:#fff;}
.chip-link.is-active:hover{background:var(--c-primary-dark);border-color:var(--c-primary-dark);color:#fff;}
.nav-actions{display:flex;align-items:center;gap:10px;flex:0 0 auto;}

/* hero */
.hero-section{background:var(--c-paper);padding:36px 0 0;}
.hero-panel{
  position:relative;overflow:hidden;border-radius:18px;
  background:var(--c-dark);color:#EFEAE1;
  padding:52px 44px;
  background-image:
    linear-gradient(rgba(255,255,255,.035) 1px,transparent 1px),
    linear-gradient(90deg,rgba(255,255,255,.035) 1px,transparent 1px);
  background-size:34px 34px;
}
.hero-eyebrow{display:inline-block;font-size:12px;letter-spacing:.1em;color:#F0C9AE;border:1px solid rgba(240,201,174,.4);border-radius:999px;padding:6px 12px;margin-bottom:18px;}
.hero-panel h1{color:#FBF8F2;margin-bottom:16px;max-width:16em;}
.hero-sub{font-size:17px;line-height:1.7;color:#D9D2C6;margin-bottom:14px;font-weight:500;}
.hero-text{font-size:15px;line-height:1.85;color:#B9B2A6;margin-bottom:26px;max-width:40em;}
.hero-btns{display:flex;flex-wrap:wrap;gap:12px;margin-bottom:26px;}
.hero-downloads{border-top:1px solid rgba(255,255,255,.12);padding-top:20px;}
.hero-downloads-title{font-size:12px;letter-spacing:.1em;color:#9C9488;margin-bottom:12px;}
.dl-row{display:flex;flex-wrap:wrap;gap:10px;}
.dl-btn{
  display:inline-flex;align-items:center;gap:9px;min-height:44px;padding:0 16px;
  border-radius:var(--radius-btn);border:1px solid rgba(255,255,255,.18);
  background:rgba(255,255,255,.06);color:#EDE7DC;font-size:14px;font-weight:600;
}
.dl-btn i{color:#F0C9AE;font-size:15px;}
.dl-btn:hover{background:var(--c-primary);border-color:var(--c-primary);color:#fff;transform:translateY(-1px);}
.dl-btn:hover i{color:#fff;}

.hero-board{background:rgba(255,255,255,.05);border:1px solid rgba(255,255,255,.12);border-radius:14px;padding:20px;}
.board-head{display:flex;align-items:center;justify-content:space-between;gap:10px;padding-bottom:14px;border-bottom:1px solid rgba(255,255,255,.12);margin-bottom:6px;}
.board-head strong{font-size:13px;color:#F0C9AE;letter-spacing:.06em;font-weight:600;}
.board-head span{font-size:11px;color:#8E877C;}
.board-row{display:flex;align-items:baseline;justify-content:space-between;gap:12px;padding:13px 0;border-bottom:1px dashed rgba(255,255,255,.1);}
.board-row:last-child{border-bottom:none;}
.board-label{font-size:13px;color:#C6BEB1;flex:1 1 auto;min-width:0;}
.board-value{font-family:var(--font-mono);font-size:19px;font-weight:700;color:#FBF8F2;font-variant-numeric:tabular-nums;white-space:nowrap;}
.board-note{display:block;font-size:11px;color:#8A8378;margin-top:6px;line-height:1.6;}

/* download section */
.dl-cards{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px;}
.dl-card{
  background:#fff;border:1px solid var(--c-line);border-radius:var(--radius-card);
  padding:26px 24px;box-shadow:var(--shadow-1);transition:all .22s ease;min-width:0;
}
.dl-card:hover{box-shadow:var(--shadow-2);border-color:var(--c-primary);transform:translateY(-2px);}
.dl-icon{
  width:46px;height:46px;border-radius:12px;display:flex;align-items:center;justify-content:center;
  background:var(--c-chip);color:var(--c-primary);font-size:20px;margin-bottom:16px;
}
.dl-card h3{margin-bottom:8px;font-size:18px;}
.dl-card p{font-size:14px;color:var(--c-ink-2);line-height:1.8;margin-bottom:18px;}

/* metric cards */
.metric-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:24px;}
.metric-card{
  background:#fff;border:1px solid var(--c-line);border-radius:var(--radius-card);
  padding:24px 20px;box-shadow:var(--shadow-1);min-width:0;transition:all .22s ease;
}
.metric-card:hover{box-shadow:var(--shadow-2);transform:translateY(-2px);}
.metric-top{display:flex;align-items:center;gap:8px;margin-bottom:14px;}
.metric-top i{color:var(--c-primary);font-size:15px;}
.metric-top span{font-size:13px;font-weight:600;color:var(--c-ink-2);}
.metric-value{font-family:var(--font-mono);font-size:26px;font-weight:700;color:var(--c-ink);font-variant-numeric:tabular-nums;line-height:1.2;margin-bottom:8px;}
.metric-desc{font-size:13px;color:var(--c-ink-3);line-height:1.7;margin-bottom:14px;}
.metric-bar{height:6px;border-radius:999px;background:var(--c-sand);overflow:hidden;}
.metric-bar span{display:block;height:100%;background:var(--c-primary);border-radius:999px;}
.metric-bar.green span{background:var(--c-green);}

/* service matrix */
.service-grid{display:grid;grid-template-columns:1.4fr 1fr;gap:24px;align-items:stretch;}
.service-main{
  background:#fff;border:1px solid var(--c-line);border-radius:var(--radius-card);
  padding:34px 32px;box-shadow:var(--shadow-1);min-width:0;
}
.service-main h3{font-size:22px;margin-bottom:12px;}
.service-main > p{font-size:15px;color:var(--c-ink-2);line-height:1.85;margin-bottom:20px;}
.point-list li{position:relative;padding-left:22px;font-size:15px;color:var(--c-ink-2);line-height:1.8;margin-bottom:12px;}
.point-list li::before{
  content:"";position:absolute;left:0;top:11px;width:8px;height:8px;border-radius:2px;background:var(--c-primary);
}
.service-mini-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:18px;}
.service-mini{
  background:#fff;border:1px solid var(--c-line);border-radius:var(--radius-card);
  padding:22px 20px;box-shadow:var(--shadow-1);transition:all .22s ease;min-width:0;
  display:flex;flex-direction:column;
}
.service-mini:hover{box-shadow:var(--shadow-2);border-color:var(--c-primary);transform:translateY(-2px);}
.service-num{font-family:var(--font-mono);font-size:13px;font-weight:700;color:var(--c-primary);letter-spacing:.08em;margin-bottom:10px;}
.service-mini h4{font-size:16px;margin-bottom:8px;}
.service-mini p{font-size:13px;color:var(--c-ink-2);line-height:1.75;}

/* compare */
.compare-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:24px;}
.compare-card{background:#fff;border:1px solid var(--c-line);border-radius:var(--radius-card);padding:30px 28px;min-width:0;box-shadow:var(--shadow-1);}
.compare-card h3{display:flex;align-items:center;gap:10px;font-size:19px;margin-bottom:6px;}
.dot{width:10px;height:10px;border-radius:3px;display:inline-block;flex:0 0 auto;}
.dot-primary{background:var(--c-primary);}
.dot-green{background:var(--c-green);}
.compare-sub{font-size:13px;color:var(--c-ink-3);margin-bottom:18px;}
.compare-list li{position:relative;padding-left:20px;font-size:14px;line-height:1.8;color:var(--c-ink-2);margin-bottom:12px;}
.compare-list li::before{content:"";position:absolute;left:0;top:10px;width:7px;height:7px;border-radius:2px;background:var(--c-line);}
.compare-card.low .compare-list li::before{background:var(--c-green);}
.compare-card.high .compare-list li::before{background:var(--c-primary);}
.compare-note{margin-top:24px;font-size:13px;color:var(--c-ink-3);line-height:1.8;border-top:1px dashed var(--c-line);padding-top:16px;}

/* timeline */
.timeline{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:24px;position:relative;}
.timeline::before{
  content:"";position:absolute;top:15px;left:0;right:0;height:1px;background:var(--c-line);
}
.tl-item{position:relative;padding-top:44px;min-width:0;}
.tl-dot{
  position:absolute;top:6px;left:0;width:20px;height:20px;border-radius:50%;
  background:var(--c-primary);border:4px solid var(--c-paper);box-shadow:0 0 0 1px var(--c-primary);
}
.tl-step{font-family:var(--font-mono);font-size:12px;color:var(--c-primary);font-weight:700;letter-spacing:.08em;margin-bottom:6px;}
.tl-item h3{font-size:17px;margin-bottom:8px;}
.tl-item p{font-size:14px;color:var(--c-ink-2);line-height:1.8;}

/* topic entry */
.topic-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:20px;}
.topic-card{
  background:#fff;border:1px solid var(--c-line);border-radius:var(--radius-card);
  padding:22px 22px;min-width:0;box-shadow:var(--shadow-1);transition:all .22s ease;display:block;
}
.topic-card h3{font-size:16px;margin-bottom:8px;color:var(--c-ink);}
.topic-card p{font-size:13px;color:var(--c-ink-3);line-height:1.7;margin-bottom:12px;}
.topic-card .topic-meta{font-size:12px;color:var(--c-ink-3);}
a.topic-card:hover{border-color:var(--c-primary);box-shadow:var(--shadow-2);transform:translateY(-2px);}
a.topic-card:hover h3{color:var(--c-primary);}
.topic-static{background:var(--c-sand);border-style:dashed;}

/* picks */
.pick-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px;}
.pick-card{
  display:flex;flex-direction:column;background:#fff;border:1px solid var(--c-line);
  border-radius:var(--radius-card);padding:24px;min-width:0;box-shadow:var(--shadow-1);transition:all .22s ease;
}
.pick-card:hover{box-shadow:var(--shadow-2);border-color:var(--c-primary);transform:translateY(-2px);}
.pick-card h3{font-size:17px;line-height:1.5;margin:12px 0 10px;color:var(--c-ink);}
.pick-card:hover h3{color:var(--c-primary);}
.pick-card p{font-size:14px;color:var(--c-ink-2);line-height:1.8;margin-bottom:14px;flex:1 1 auto;}
.pick-meta{font-size:12px;color:var(--c-ink-3);font-family:var(--font-mono);font-variant-numeric:tabular-nums;}
.empty-note{
  grid-column:1/-1;font-size:14px;color:var(--c-ink-3);background:#fff;border:1px dashed var(--c-line);
  border-radius:var(--radius-card);padding:26px;text-align:center;
}

/* news list */
.news-layout{display:grid;grid-template-columns:2fr 1fr;gap:32px;align-items:start;}
.news-list{background:#fff;border:1px solid var(--c-line);border-radius:var(--radius-card);overflow:hidden;}
.news-row{
  display:block;padding:22px 24px;border-bottom:1px solid var(--c-line);transition:background-color .18s ease;
}
.news-row:last-child{border-bottom:none;}
.news-row:hover{background:var(--c-sand);}
.news-row h3{font-size:17px;line-height:1.5;margin:10px 0 8px;color:var(--c-ink);}
.news-row:hover h3{color:var(--c-primary);}
.news-row p{font-size:14px;color:var(--c-ink-2);line-height:1.8;margin-bottom:10px;}
.news-row .pick-meta{font-size:12px;}
.news-side{background:var(--c-dark);border-radius:var(--radius-card);padding:28px 24px;color:#CFC8BC;}
.news-side h3{color:#FBF8F2;font-size:17px;margin-bottom:12px;}
.news-side p{font-size:14px;line-height:1.85;color:#B6AFA3;margin-bottom:18px;}
.news-side .btn{width:100%;}
.news-side ul{margin:18px 0 0;border-top:1px solid rgba(255,255,255,.12);padding-top:16px;}
.news-side li{font-size:13px;color:#9F988C;line-height:1.8;padding-left:16px;position:relative;margin-bottom:8px;}
.news-side li::before{content:"";position:absolute;left:0;top:10px;width:6px;height:6px;border-radius:2px;background:var(--c-primary);}

/* resource */
.resource-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:20px;}
.resource-card{background:var(--c-sand);border:1px solid var(--c-line);border-radius:var(--radius-card);padding:24px 20px;min-width:0;transition:all .22s ease;}
.resource-card:hover{background:#fff;box-shadow:var(--shadow-2);}
.resource-card i{color:var(--c-green);font-size:18px;margin-bottom:14px;display:block;}
.resource-card h3{font-size:16px;margin-bottom:8px;}
.resource-card p{font-size:13px;color:var(--c-ink-2);line-height:1.75;}

/* guarantee */
.guarantee-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:24px;}
.guarantee-item{min-width:0;padding:26px 22px;background:#fff;border:1px solid var(--c-line);border-radius:var(--radius-card);box-shadow:var(--shadow-1);}
.guarantee-item i{font-size:18px;color:var(--c-primary);margin-bottom:14px;display:block;}
.guarantee-item h3{font-size:16px;margin-bottom:8px;}
.guarantee-item p{font-size:13px;color:var(--c-ink-2);line-height:1.75;}

/* quick answer dark cards */
.quick-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:20px;}
.quick-card{background:var(--c-dark);border-radius:var(--radius-card);padding:26px 24px;color:#C9C2B6;min-width:0;border:1px solid rgba(255,255,255,.08);transition:all .22s ease;}
.quick-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-2);}
.quick-card h3{color:#FBF8F2;font-size:16px;line-height:1.5;margin-bottom:12px;}
.quick-card p{font-size:14px;line-height:1.85;color:#B2ABA0;}

/* terms */
.term-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:0 40px;}
.term-item{padding:14px 0;border-bottom:1px dashed var(--c-line);min-width:0;}
.term-item strong{display:block;font-size:15px;color:var(--c-ink);margin-bottom:4px;}
.term-item span{font-size:14px;color:var(--c-ink-2);line-height:1.8;}

/* faq */
.site-accordion{border:1px solid var(--c-line);border-radius:var(--radius-card);background:#fff;overflow:hidden;}
.site-accordion .accordion-item{border-bottom:1px solid var(--c-line);}
.site-accordion .accordion-item:last-child{border-bottom:none;}
.site-accordion .accordion-title{
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  min-height:60px;padding:16px 24px;background:#fff;color:var(--c-ink);
  font-size:16px;font-weight:600;line-height:1.5;border:none;
  position:relative;transition:color .18s ease,background-color .18s ease;
}
.site-accordion .accordion-title:hover{background:var(--c-sand);color:var(--c-primary);}
.site-accordion .accordion-title::after{
  content:"+";font-family:var(--font-mono);font-size:20px;color:var(--c-primary);line-height:1;flex:0 0 auto;
}
.site-accordion .accordion-item.is-active .accordion-title{color:var(--c-primary);}
.site-accordion .accordion-item.is-active .accordion-title::before{
  content:"";position:absolute;left:0;top:12px;bottom:12px;width:3px;background:var(--c-primary);border-radius:0 2px 2px 0;
}
.site-accordion .accordion-item.is-active .accordion-title::after{content:"−";}
.site-accordion .accordion-content{padding:0 24px 20px;border:none;background:#fff;color:var(--c-ink-2);}
.site-accordion .accordion-content p{font-size:15px;line-height:1.85;margin:0;}
.site-accordion .accordion-content[aria-hidden="true"]{display:none;}

/* form */
.consult-grid{display:grid;grid-template-columns:1fr 1.6fr;gap:40px;align-items:start;}
.consult-info h2{margin-bottom:14px;}
.consult-info p{font-size:15px;color:var(--c-ink-2);line-height:1.85;}
.consult-risk{margin-top:20px;background:#FBF0EE;border-left:4px solid var(--c-danger);border-radius:0 8px 8px 0;padding:16px 18px;font-size:14px;line-height:1.8;color:#6E2A23;}
.form-card{background:#fff;border:1px solid var(--c-line);border-radius:var(--radius-card);padding:32px;box-shadow:var(--shadow-1);}
.field{margin-bottom:18px;}
.field label{display:block;font-size:14px;font-weight:600;color:var(--c-ink);margin-bottom:8px;}
.field .req{color:var(--c-danger);margin-left:4px;}
.field input[type="text"],.field input[type="tel"],.field select,.field textarea{
  width:100%;min-height:44px;padding:10px 14px;border:1px solid var(--c-line);
  border-radius:var(--radius-btn);background:var(--c-paper);color:var(--c-ink);font-size:15px;line-height:1.5;
  transition:border-color .18s ease,box-shadow .18s ease,background-color .18s ease;
}
.field textarea{min-height:110px;resize:vertical;}
.field input:focus,.field select:focus,.field textarea:focus{
  outline:none;border-color:var(--c-primary);background:#fff;box-shadow:0 0 0 2px rgba(194,87,26,.18);
}
.field select{appearance:none;background-image:none;}
.check-row{display:flex;align-items:flex-start;gap:10px;margin-bottom:20px;}
.check-row input[type="checkbox"]{width:18px;height:18px;margin-top:4px;accent-color:var(--c-primary);flex:0 0 auto;}
.check-row label{font-size:13px;color:var(--c-ink-2);line-height:1.75;}
.form-card .btn{width:100%;}
.grid-2{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:18px;}

/* risk */
.risk-box{
  background:#FBF0EE;border:1px solid #E9CFCB;border-left:4px solid var(--c-danger);
  border-radius:0 var(--radius-card) var(--radius-card) 0;padding:26px 28px;
}
.risk-box h2{font-size:19px;color:#7A2E26;margin-bottom:12px;}
.risk-box p{font-size:14px;line-height:1.8;color:#6E2A23;}

/* keyword band */
.kw-band{display:flex;flex-wrap:wrap;gap:10px;}
.kw-chip{
  font-size:13px;color:var(--c-ink-2);background:#fff;border:1px solid var(--c-line);
  border-radius:999px;padding:7px 14px;line-height:1.4;
}

/* footer */
.site-footer{background:var(--c-dark);color:#A9A398;padding:64px 0 0;margin-top:0;}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:36px;padding-bottom:44px;}
.footer-brand .brand-mark{color:#FBF8F2;font-size:19px;}
.footer-brand .brand-sub{color:#8D8579;}
.footer-brand p{font-size:14px;line-height:1.85;color:#9A9387;margin-top:16px;max-width:22em;}
.site-footer h4{font-size:14px;color:#F0EAE0;letter-spacing:.06em;margin-bottom:16px;font-weight:700;}
.footer-links li{margin-bottom:10px;}
.footer-links a{font-size:14px;color:#A9A398;line-height:1.7;}
.footer-links a:hover{color:var(--c-primary);}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.1);padding:22px 0;
  display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;align-items:center;
}
.footer-bottom p{font-size:13px;color:#7E776C;margin:0;}
.footer-bottom .foot-note{font-size:12px;color:#6E685E;}

/* responsive */
@media screen and (max-width:1023px){
  .site-section{padding:56px 0;}
  .site-container{padding:0 20px;}
  .hero-panel{padding:40px 30px;}
  .hero-panel h1{max-width:none;}
  .hero-board{margin-top:28px;}
  .metric-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
  .dl-cards{grid-template-columns:repeat(2,minmax(0,1fr));}
  .service-grid{grid-template-columns:1fr;}
  .timeline{grid-template-columns:repeat(2,minmax(0,1fr));gap:28px;}
  .timeline::before{display:none;}
  .topic-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
  .pick-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
  .news-layout{grid-template-columns:1fr;}
  .resource-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
  .guarantee-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
  .quick-grid{grid-template-columns:1fr;}
  .consult-grid{grid-template-columns:1fr;gap:28px;}
  .footer-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:28px;}
  .nav-wrap{gap:14px;}
  .nav-chips{order:3;flex-basis:100%;width:100%;}
}
@media screen and (max-width:767px){
  .dl-cards{grid-template-columns:repeat(2,minmax(0,1fr));gap:16px;}
  .metric-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:16px;}
  .compare-grid{grid-template-columns:1fr;}
  .topic-grid{grid-template-columns:1fr;}
  .pick-grid{grid-template-columns:1fr;}
  .term-grid{grid-template-columns:1fr;gap:0;}
  .grid-2{grid-template-columns:1fr;}
  .form-card,.hero-panel,.service-main,.compare-card{padding:24px 20px;}
}
@media screen and (max-width:520px){
  .site-container{padding:0 16px;}
  .site-section{padding:40px 0;}
  .hero-section{padding:20px 0 0;}
  .hero-panel{padding:26px 18px;border-radius:14px;}
  .hero-panel h1{font-size:26px;}
  .hero-sub{font-size:15px;}
  .hero-btns .btn{width:100%;}
  .dl-row{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));}
  .dl-btn{width:100%;justify-content:center;padding:0 10px;font-size:13px;}
  .dl-cards{grid-template-columns:1fr;}
  .metric-grid{grid-template-columns:1fr;}
  .timeline{grid-template-columns:1fr;}
  .resource-grid,.guarantee-grid{grid-template-columns:1fr;}
  .service-mini-grid{grid-template-columns:1fr;}
  .footer-grid{grid-template-columns:1fr;gap:24px;}
  .nav-actions{width:100%;}
  .nav-actions .btn{flex:1 1 0;min-width:0;}
  .board-value{font-size:17px;}
  .news-row,.site-accordion .accordion-title{padding-left:18px;padding-right:18px;}
  .site-accordion .accordion-content{padding-left:18px;padding-right:18px;}
}

/* roulang page: article */
:root{
  --c-primary:#C2571A;
  --c-primary-dark:#9A4314;
  --c-green:#2E6B4E;
  --c-danger:#B3352B;
  --c-ink:#1A1E1C;
  --c-ink-2:#5A605C;
  --c-ink-3:#8A8F8B;
  --c-paper:#F7F5F0;
  --c-sand:#EFEBE2;
  --c-dark:#14181A;
  --c-line:#E2DCD1;
  --c-chip:#F3E7DA;
  --c-chip-green:#E4EDE7;
  --radius-card:12px;
  --radius-btn:8px;
  --radius-img:10px;
  --shadow-1:0 1px 2px rgba(20,24,26,.05);
  --shadow-2:0 10px 28px -14px rgba(20,24,26,.22);
  --font-base:-apple-system,"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Source Han Sans SC",sans-serif;
  --font-mono:ui-monospace,"Roboto Mono",Menlo,Consolas,monospace;
  --space-1:8px; --space-2:16px; --space-3:24px; --space-4:32px; --space-5:48px; --space-6:72px;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;}
body{
  margin:0;
  font-family:var(--font-base);
  font-size:16px;
  line-height:1.85;
  color:var(--c-ink);
  background:var(--c-paper);
  letter-spacing:.01em;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;height:auto;display:block;}
a{color:var(--c-green);text-decoration:none;transition:color .18s ease,background-color .18s ease,border-color .18s ease,box-shadow .22s ease,transform .18s ease;}
a:hover{color:var(--c-primary);}
button,input,select,textarea{font-family:inherit;font-size:inherit;}
h1,h2,h3,h4{font-family:var(--font-base);color:var(--c-ink);letter-spacing:.005em;font-weight:700;}
h1{font-size:clamp(26px,3.4vw,38px);line-height:1.35;margin:0 0 18px;}
h2{font-size:clamp(22px,2.4vw,30px);line-height:1.35;margin:0 0 12px;}
h3{font-size:19px;line-height:1.45;margin:0 0 10px;}
p{margin:0 0 1em;}
:focus-visible{outline:2px solid var(--c-primary);outline-offset:2px;}
.site-container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px;}
.site-section{padding:72px 0;}
.section-sand{background:var(--c-sand);}
.section-paper{background:var(--c-paper);}
.section-line-top{border-top:1px solid var(--c-line);}
.section-head{max-width:780px;margin-bottom:36px;}
.section-head p{color:var(--c-ink-2);font-size:15px;line-height:1.8;}
.eyebrow{
  display:inline-block;font-size:12px;line-height:1;letter-spacing:.08em;
  color:var(--c-primary);background:var(--c-chip);border-radius:999px;
  padding:6px 12px;margin-bottom:14px;font-weight:600;
}
.tag{
  display:inline-block;font-size:12px;line-height:1;padding:6px 10px;border-radius:4px;
  background:var(--c-chip);color:var(--c-primary);font-weight:600;
}
.tag-green{background:var(--c-chip-green);color:var(--c-green);}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:44px;padding:0 20px;border-radius:var(--radius-btn);
  font-size:15px;font-weight:600;line-height:1.2;cursor:pointer;
  border:1px solid transparent;transition:all .18s ease;
}
.btn-primary{background:var(--c-primary);color:#fff;border-color:var(--c-primary);}
.btn-primary:hover{background:var(--c-primary-dark);border-color:var(--c-primary-dark);color:#fff;transform:translateY(-1px);}
.btn-primary:active{transform:translateY(0);box-shadow:inset 0 2px 6px rgba(0,0,0,.18);}
.btn-ghost{background:#fff;color:var(--c-ink);border-color:var(--c-line);}
.btn-ghost:hover{background:var(--c-chip);border-color:var(--c-primary);color:var(--c-primary);}
.btn-green{background:var(--c-green);color:#fff;border-color:var(--c-green);}
.btn-green:hover{background:#245740;border-color:#245740;color:#fff;transform:translateY(-1px);}
.btn-sm{min-height:38px;padding:0 16px;font-size:14px;}
.btn-block{width:100%;}
/* header */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(247,245,240,.97);
  border-bottom:1px solid var(--c-line);
  transition:box-shadow .22s ease,background-color .22s ease;
}
.site-header.is-scrolled{box-shadow:0 6px 18px -12px rgba(20,24,26,.35);background:rgba(247,245,240,.99);}
.nav-wrap{display:flex;align-items:center;gap:20px;min-height:68px;padding-top:10px;padding-bottom:10px;flex-wrap:wrap;}
.brand{display:flex;flex-direction:column;line-height:1.15;flex:0 0 auto;}
.brand-mark{font-size:19px;font-weight:800;color:var(--c-ink);letter-spacing:.02em;}
.brand-sub{font-size:11px;color:var(--c-ink-3);letter-spacing:.16em;margin-top:4px;}
.brand:hover .brand-mark{color:var(--c-primary);}
.nav-chips{display:flex;align-items:center;gap:8px;flex:1 1 auto;min-width:0;overflow-x:auto;scrollbar-width:none;padding:2px 0;}
.nav-chips::-webkit-scrollbar{display:none;}
.chip-link{
  flex:0 0 auto;display:inline-flex;align-items:center;height:36px;padding:0 16px;
  border-radius:999px;border:1px solid var(--c-line);background:#fff;color:var(--c-ink-2);
  font-size:14px;font-weight:600;white-space:nowrap;
}
.chip-link:hover{color:var(--c-primary);border-color:var(--c-primary);background:var(--c-chip);}
.chip-link.is-active{background:var(--c-primary);border-color:var(--c-primary);color:#fff;}
.chip-link.is-active:hover{background:var(--c-primary-dark);border-color:var(--c-primary-dark);color:#fff;}
.nav-actions{display:flex;align-items:center;gap:10px;flex:0 0 auto;}
/* breadcrumb */
.crumb-bar{background:var(--c-sand);border-bottom:1px solid var(--c-line);padding:12px 0;font-size:13px;color:var(--c-ink-3);}
.crumb-list{display:flex;flex-wrap:wrap;align-items:center;gap:8px;margin:0;padding:0;list-style:none;min-width:0;}
.crumb-list li{display:flex;align-items:center;gap:8px;min-width:0;}
.crumb-list a{color:var(--c-ink-2);font-weight:600;}
.crumb-list a:hover{color:var(--c-primary);}
.crumb-sep{color:#B6B0A6;}
.crumb-current{color:var(--c-primary);font-weight:600;max-width:46ch;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;}
/* article head */
.article-head{background:var(--c-paper);padding:44px 0 0;}
.article-head-inner{max-width:860px;}
.article-head h1{font-size:clamp(26px,3.4vw,38px);line-height:1.35;margin-bottom:20px;}
.article-meta{display:flex;flex-wrap:wrap;align-items:center;gap:10px 18px;font-size:13px;color:var(--c-ink-3);padding-bottom:20px;border-bottom:1px solid var(--c-line);}
.article-meta .meta-item{display:inline-flex;align-items:center;gap:6px;}
.article-meta i{color:var(--c-primary);}
/* layout */
.article-layout{display:grid;grid-template-columns:minmax(0,1fr) 320px;gap:40px;align-items:start;padding-top:36px;padding-bottom:56px;}
.article-main{min-width:0;}
.article-prose{
  max-width:760px;font-size:17px;line-height:1.9;color:var(--c-ink);
  overflow-wrap:break-word;word-break:normal;
}
.article-prose p{margin:0 0 1.15em;}
.article-prose h2{
  font-size:24px;line-height:1.4;margin:36px 0 16px;padding-left:14px;position:relative;
}
.article-prose h2::before{
  content:"";position:absolute;left:0;top:7px;bottom:7px;width:4px;background:var(--c-primary);border-radius:2px;
}
.article-prose h3{font-size:19px;line-height:1.5;margin:28px 0 12px;color:var(--c-ink);}
.article-prose h4{font-size:17px;margin:22px 0 10px;}
.article-prose ul,.article-prose ol{padding-left:1.4em;margin:0 0 1.15em;line-height:1.85;}
.article-prose li{margin-bottom:.4em;}
.article-prose blockquote{
  margin:24px 0;padding:16px 20px;background:var(--c-sand);
  border-left:3px solid var(--c-primary);border-radius:0 var(--radius-img) var(--radius-img) 0;color:var(--c-ink-2);
}
.article-prose blockquote p:last-child{margin-bottom:0;}
.article-prose img{border-radius:var(--radius-img);margin:24px 0;max-width:100%;height:auto;}
.article-prose a{color:var(--c-green);text-decoration:underline;text-decoration-style:dashed;text-underline-offset:3px;}
.article-prose a:hover{color:var(--c-primary);text-decoration-style:solid;}
.article-prose table{width:100%;border-collapse:collapse;margin:24px 0;font-size:15px;border:1px solid var(--c-line);}
.article-prose th,.article-prose td{border:1px solid var(--c-line);padding:10px 12px;text-align:left;}
.article-prose th{background:var(--c-sand);font-weight:700;}
.article-prose tbody tr:nth-child(even){background:#FBFAF6;}
.article-prose hr{border:0;border-top:1px solid var(--c-line);margin:32px 0;}
/* sidebar */
.article-side{position:sticky;top:88px;display:flex;flex-direction:column;gap:20px;min-width:0;}
.side-card{background:#fff;border:1px solid var(--c-line);border-radius:var(--radius-card);padding:20px;box-shadow:var(--shadow-1);}
.side-card h3{font-size:15px;margin:0 0 12px;display:flex;align-items:center;gap:8px;}
.side-card h3 i{color:var(--c-primary);font-size:14px;}
.side-list{list-style:none;margin:0;padding:0;font-size:14px;line-height:1.75;color:var(--c-ink-2);}
.side-list li{padding:10px 0;border-bottom:1px dashed var(--c-line);}
.side-list li:last-child{border-bottom:0;padding-bottom:0;}
.side-dl{display:flex;flex-direction:column;gap:10px;margin-top:4px;}
.side-dl .btn{justify-content:flex-start;}
.side-note{font-size:12px;line-height:1.7;color:var(--c-ink-3);margin:12px 0 0;}
.side-back{margin-top:2px;}
.side-back a{font-size:14px;font-weight:600;color:var(--c-green);display:inline-flex;align-items:center;gap:8px;}
.side-back a:hover{color:var(--c-primary);}
/* empty */
.empty-box{
  border:1px dashed var(--c-line);background:#fff;border-radius:var(--radius-card);
  padding:40px 28px;text-align:center;max-width:760px;
}
.empty-box p{color:var(--c-ink-2);font-size:15px;margin-bottom:18px;}
.empty-box .btn{margin-top:4px;}
/* risk */
.risk-section{padding:0 0 56px;}
.risk-box{
  border-left:4px solid var(--c-danger);background:#FBEFED;border-radius:0 var(--radius-card) var(--radius-card) 0;
  padding:20px 24px;font-size:14px;line-height:1.8;color:#6A2B24;
}
.risk-box h2{font-size:16px;margin:0 0 8px;color:#7C2F26;display:flex;align-items:center;gap:8px;}
.risk-box p:last-child{margin-bottom:0;}
/* extend */
.extend-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px;}
.extend-card{
  display:flex;flex-direction:column;gap:10px;min-width:0;
  background:#fff;border:1px solid var(--c-line);border-radius:var(--radius-card);
  padding:22px;box-shadow:var(--shadow-1);transition:all .2s ease;
}
.extend-card:hover{border-color:var(--c-primary);box-shadow:var(--shadow-2);transform:translateY(-2px);}
.extend-card h3{font-size:17px;margin:0;color:var(--c-ink);}
.extend-card p{font-size:14px;line-height:1.75;color:var(--c-ink-2);margin:0;}
.extend-card .go{font-size:14px;font-weight:600;color:var(--c-primary);display:inline-flex;align-items:center;gap:8px;margin-top:auto;}
.extend-card:hover .go{gap:12px;}
/* closing */
.closing-inner{
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:20px;
  background:var(--c-dark);color:#EFEAE1;border-radius:16px;padding:32px 36px;
  background-image:linear-gradient(rgba(255,255,255,.035) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.035) 1px,transparent 1px);
  background-size:34px 34px;
}
.closing-inner h2{color:#FBF8F2;font-size:clamp(19px,2.2vw,24px);margin:0 0 8px;}
.closing-inner p{color:#B9B2A6;font-size:14px;line-height:1.8;margin:0;max-width:52ch;}
.closing-btns{display:flex;flex-wrap:wrap;gap:12px;}
.btn-light{background:#fff;color:var(--c-ink);border-color:#fff;}
.btn-light:hover{background:var(--c-chip);border-color:var(--c-chip);color:var(--c-primary);}
.btn-outline-light{background:transparent;color:#F2EDE4;border-color:rgba(255,255,255,.34);}
.btn-outline-light:hover{background:rgba(255,255,255,.10);border-color:#fff;color:#fff;}
/* footer */
.site-footer{background:var(--c-dark);color:#C9C3B8;padding:56px 0 28px;}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:32px;}
.footer-brand .brand-mark{display:block;color:#FBF8F2;font-size:19px;font-weight:800;}
.footer-brand .brand-sub{display:block;color:#8A8F8B;margin-top:6px;}
.footer-brand p{margin:14px 0 0;font-size:14px;line-height:1.8;color:#A8A296;}
.site-footer h4{font-size:14px;color:#F2EDE4;margin:0 0 14px;letter-spacing:.04em;}
.footer-links{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:10px;}
.footer-links a{color:#B7B1A5;font-size:14px;}
.footer-links a:hover{color:#F0C9AE;}
.footer-bottom{
  margin-top:36px;padding-top:20px;border-top:1px solid rgba(255,255,255,.10);
  display:flex;flex-wrap:wrap;gap:10px;justify-content:space-between;align-items:center;font-size:13px;color:#8A8F8B;
}
.footer-bottom p{margin:0;}
.foot-note{color:#8A8F8B;}
/* responsive */
@media (max-width:1023px){
  .site-container{padding:0 20px;}
  .site-section{padding:56px 0;}
  .nav-wrap{gap:12px;}
  .nav-chips{order:3;width:100%;flex:1 0 100%;}
  .nav-actions{margin-left:auto;}
  .article-layout{grid-template-columns:minmax(0,1fr);gap:32px;padding-top:28px;}
  .article-side{position:static;top:auto;}
  .extend-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
  .footer-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:28px;}
  .closing-inner{padding:28px;}
}
@media (max-width:639px){
  .site-container{padding:0 16px;}
  .site-section{padding:40px 0;}
  body{font-size:16px;line-height:1.85;}
  .brand-mark{font-size:17px;}
  .brand-sub{font-size:10px;letter-spacing:.12em;}
  .nav-actions .btn-ghost{display:none;}
  .article-head{padding:28px 0 0;}
  .article-prose{font-size:16px;line-height:1.9;}
  .article-prose h2{font-size:21px;margin:30px 0 14px;}
  .article-prose h3{font-size:18px;}
  .crumb-current{max-width:24ch;}
  .extend-grid{grid-template-columns:minmax(0,1fr);}
  .footer-grid{grid-template-columns:minmax(0,1fr);gap:24px;}
  .closing-inner{padding:24px 20px;}
  .closing-btns{width:100%;}
  .closing-btns .btn{flex:1 1 auto;}
  .risk-box{padding:18px 18px;font-size:13.5px;}
  .footer-bottom{flex-direction:column;align-items:flex-start;}
}

/* roulang page: category1 */
:root{
  --c-primary:#C2571A;
  --c-primary-dark:#9A4314;
  --c-green:#2E6B4E;
  --c-danger:#B3352B;
  --c-ink:#1A1E1C;
  --c-ink-2:#5A605C;
  --c-ink-3:#8A8F8B;
  --c-paper:#F7F5F0;
  --c-sand:#EFEBE2;
  --c-dark:#14181A;
  --c-line:#E2DCD1;
  --c-chip:#F3E7DA;
  --c-chip-green:#E4EDE7;
  --radius-card:12px;
  --radius-btn:8px;
  --radius-img:10px;
  --shadow-1:0 1px 2px rgba(20,24,26,.05);
  --shadow-2:0 10px 28px -14px rgba(20,24,26,.22);
  --font-base:-apple-system,"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Source Han Sans SC",sans-serif;
  --font-mono:ui-monospace,"Roboto Mono",Menlo,Consolas,monospace;
  --space-1:8px; --space-2:16px; --space-3:24px; --space-4:32px; --space-5:48px; --space-6:72px;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:var(--font-base);
  font-size:16px;
  line-height:1.85;
  color:var(--c-ink);
  background:var(--c-paper);
  letter-spacing:.01em;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{max-width:100%;height:auto;display:block;}
a{color:var(--c-green);text-decoration:none;transition:color .18s ease,background-color .18s ease,border-color .18s ease,box-shadow .22s ease,transform .18s ease;}
a:hover{color:var(--c-primary);}
button,input,select,textarea{font-family:inherit;font-size:inherit;}
h1,h2,h3,h4{margin:0;color:var(--c-ink);letter-spacing:.005em;}
h1{font-size:clamp(26px,3.4vw,40px);line-height:1.3;font-weight:800;}
h2{font-size:clamp(22px,2.4vw,30px);line-height:1.35;font-weight:700;}
h3{font-size:19px;line-height:1.5;font-weight:700;}
p{margin:0 0 12px;}
ul,ol{margin:0;padding-left:20px;}
:focus-visible{outline:2px solid var(--c-primary);outline-offset:2px;}
.site-container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px;}
.site-section{padding:72px 0;}
.section-sand{background:var(--c-sand);}
.section-paper{background:var(--c-paper);}
.section-line-top{border-top:1px solid var(--c-line);}
.section-head{max-width:780px;margin-bottom:36px;}
.section-head h2{margin-bottom:12px;}
.section-head p{color:var(--c-ink-2);font-size:15px;line-height:1.8;margin:0;}
.eyebrow{
  display:inline-block;font-size:12px;line-height:1;letter-spacing:.08em;
  color:var(--c-primary);background:var(--c-chip);border-radius:999px;
  padding:6px 12px;margin-bottom:14px;font-weight:600;
}
.tag{display:inline-block;font-size:12px;line-height:1;padding:6px 10px;border-radius:4px;background:var(--c-chip);color:var(--c-primary);font-weight:600;}
.tag-green{background:var(--c-chip-green);color:var(--c-green);}
.tag-danger{background:#F7E3E0;color:var(--c-danger);}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:44px;padding:0 20px;border-radius:var(--radius-btn);
  font-size:15px;font-weight:600;line-height:1.2;cursor:pointer;
  border:1px solid transparent;transition:all .18s ease;text-align:center;
}
.btn-primary{background:var(--c-primary);color:#fff;border-color:var(--c-primary);}
.btn-primary:hover{background:var(--c-primary-dark);border-color:var(--c-primary-dark);color:#fff;transform:translateY(-1px);}
.btn-primary:active{transform:translateY(0);box-shadow:inset 0 2px 6px rgba(0,0,0,.18);}
.btn-ghost{background:#fff;color:var(--c-ink);border-color:var(--c-line);}
.btn-ghost:hover{background:var(--c-chip);border-color:var(--c-primary);color:var(--c-primary);}
.btn-green{background:var(--c-green);color:#fff;border-color:var(--c-green);}
.btn-green:hover{background:#245740;border-color:#245740;color:#fff;transform:translateY(-1px);}
.btn-sm{min-height:38px;padding:0 16px;font-size:14px;}
/* header */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(247,245,240,.97);
  border-bottom:1px solid var(--c-line);
  transition:box-shadow .22s ease,background-color .22s ease;
}
.site-header.is-scrolled{box-shadow:0 6px 18px -12px rgba(20,24,26,.35);background:rgba(247,245,240,.99);}
.nav-wrap{display:flex;align-items:center;gap:20px;min-height:68px;padding-top:10px;padding-bottom:10px;flex-wrap:wrap;}
.brand{display:flex;flex-direction:column;line-height:1.15;flex:0 0 auto;}
.brand-mark{font-size:19px;font-weight:800;color:var(--c-ink);letter-spacing:.02em;}
.brand-sub{font-size:11px;color:var(--c-ink-3);letter-spacing:.16em;margin-top:4px;}
.brand:hover .brand-mark{color:var(--c-primary);}
.nav-chips{display:flex;align-items:center;gap:8px;flex:1 1 auto;min-width:0;overflow-x:auto;scrollbar-width:none;padding:2px 0;}
.nav-chips::-webkit-scrollbar{display:none;}
.chip-link{
  flex:0 0 auto;display:inline-flex;align-items:center;height:36px;padding:0 16px;
  border-radius:999px;border:1px solid var(--c-line);background:#fff;color:var(--c-ink-2);
  font-size:14px;font-weight:600;white-space:nowrap;
}
.chip-link:hover{color:var(--c-primary);border-color:var(--c-primary);background:var(--c-chip);}
.chip-link.is-active{background:var(--c-primary);border-color:var(--c-primary);color:#fff;}
.chip-link.is-active:hover{background:var(--c-primary-dark);border-color:var(--c-primary-dark);color:#fff;}
.nav-actions{display:flex;align-items:center;gap:10px;flex:0 0 auto;}
/* category band */
.cat-band{background:var(--c-paper);padding:30px 0 0;}
.crumbs{font-size:13px;color:var(--c-ink-3);margin-bottom:16px;display:flex;flex-wrap:wrap;align-items:center;gap:4px;}
.crumbs a{color:var(--c-ink-2);}
.crumbs a:hover{color:var(--c-primary);}
.crumbs .sep{color:var(--c-ink-3);margin:0 4px;}
.crumbs .cur{color:var(--c-primary);font-weight:600;}
.cat-band-inner{display:flex;justify-content:space-between;align-items:flex-end;gap:28px;flex-wrap:wrap;padding-bottom:34px;border-bottom:1px solid var(--c-line);}
.cat-band-main{flex:1 1 560px;min-width:0;}
.cat-band-main h1{margin-bottom:14px;}
.cat-lead{color:var(--c-ink-2);font-size:15px;line-height:1.85;max-width:46em;margin:0;}
.cat-band-side{flex:0 0 auto;display:flex;flex-direction:column;align-items:flex-end;gap:10px;}
.stat-chip{display:inline-flex;align-items:center;gap:8px;font-size:13px;font-weight:600;color:var(--c-green);background:var(--c-chip-green);border-radius:999px;padding:8px 14px;white-space:nowrap;}
.stat-chip i{font-size:12px;}
.cat-band-note{font-size:12px;color:var(--c-ink-3);margin:0;}
/* metric strip */
.metric-strip{
  display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:1px;
  background:var(--c-line);border:1px solid var(--c-line);
  border-radius:var(--radius-card);overflow:hidden;margin-top:28px;
}
.metric-cell{background:var(--c-sand);padding:18px 20px;min-width:0;}
.metric-cell .m-label{font-size:12px;color:var(--c-ink-2);letter-spacing:.04em;margin-bottom:6px;}
.metric-cell .m-value{font-family:var(--font-mono);font-variant-numeric:tabular-nums;font-size:22px;font-weight:700;color:var(--c-primary);line-height:1.2;word-break:break-word;}
.metric-cell .m-note{font-size:12px;color:var(--c-ink-3);margin-top:6px;line-height:1.6;}
/* post grid */
.post-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:20px;}
.post-card{
  position:relative;min-width:0;display:flex;flex-direction:column;gap:10px;
  background:#fff;border:1px solid var(--c-line);border-radius:var(--radius-card);
  padding:22px 24px;box-shadow:var(--shadow-1);
  transition:color .18s ease,background-color .18s ease,border-color .18s ease,box-shadow .22s ease,transform .18s ease;
}
.post-card:hover{box-shadow:var(--shadow-2);border-color:var(--c-primary);transform:translateY(-2px);}
.post-meta{display:flex;flex-wrap:wrap;align-items:center;gap:10px;font-size:12px;color:var(--c-ink-3);}
.post-title{font-size:18px;line-height:1.55;font-weight:700;margin:0;color:var(--c-ink);
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.post-card:hover .post-title{color:var(--c-primary);}
.post-title a{color:inherit;}
.post-title a::after{content:"";position:absolute;inset:0;border-radius:var(--radius-card);}
.post-excerpt{color:var(--c-ink-2);font-size:14px;line-height:1.8;margin:0;
  display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden;word-break:normal;}
.post-foot{margin-top:auto;padding-top:8px;font-size:13px;color:var(--c-primary);font-weight:600;display:inline-flex;align-items:center;gap:6px;}
.post-empty{border:1px dashed var(--c-line);border-radius:var(--radius-card);padding:32px 24px;text-align:center;color:var(--c-ink-3);font-size:14px;background:#fff;}
/* points */
.point-list{list-style:none;margin:0;padding:0;border-top:1px solid var(--c-line);}
.point-list li{display:flex;gap:18px;align-items:flex-start;padding:22px 4px;border-bottom:1px solid var(--c-line);min-width:0;}
.point-num{font-family:var(--font-mono);font-variant-numeric:tabular-nums;font-size:26px;font-weight:700;color:var(--c-primary);line-height:1;flex:0 0 auto;padding-top:2px;}
.point-body{min-width:0;}
.point-body strong{display:block;font-size:16px;margin-bottom:6px;color:var(--c-ink);}
.point-body p{margin:0;color:var(--c-ink-2);font-size:15px;line-height:1.8;}
/* compare */
.vs-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:20px;}
.vs-card{background:#fff;border:1px solid var(--c-line);border-radius:var(--radius-card);padding:24px;min-width:0;box-shadow:var(--shadow-1);}
.vs-card h3{display:flex;align-items:center;gap:10px;margin-bottom:16px;font-size:17px;}
.vs-list{list-style:none;margin:0;padding:0;}
.vs-list li{position:relative;padding-left:22px;margin-bottom:12px;font-size:15px;line-height:1.8;color:var(--c-ink-2);}
.vs-list li:last-child{margin-bottom:0;}
.vs-list li::before{content:"";position:absolute;left:0;top:11px;width:9px;height:9px;border-radius:2px;background:var(--c-danger);}
.vs-good .vs-list li::before{background:var(--c-green);}
/* terms */
.term-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:0 40px;}
.term-item{padding:14px 0;border-bottom:1px dashed var(--c-line);min-width:0;}
.term-item dt{font-size:15px;font-weight:700;color:var(--c-ink);margin-bottom:4px;}
.term-item dd{margin:0;font-size:14px;color:var(--c-ink-2);line-height:1.75;}
.term-note{margin-top:18px;font-size:13px;color:var(--c-ink-3);line-height:1.7;}
/* faq */
.faq-list{border-top:1px solid var(--c-line);}
.faq-item{border-bottom:1px solid var(--c-line);}
.faq-item summary{
  list-style:none;cursor:pointer;display:flex;align-items:center;justify-content:space-between;gap:16px;
  min-height:52px;padding:14px 2px;font-size:16px;font-weight:700;color:var(--c-ink);
  transition:color .18s ease;
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary:hover{color:var(--c-primary);}
.faq-item summary .faq-icon{flex:0 0 auto;position:relative;width:16px;height:16px;}
.faq-item summary .faq-icon::before,
.faq-item summary .faq-icon::after{content:"";position:absolute;background:var(--c-primary);border-radius:1px;transition:transform .18s ease,opacity .18s ease;}
.faq-item summary .faq-icon::before{left:0;top:7px;width:16px;height:2px;}
.faq-item summary .faq-icon::after{left:7px;top:0;width:2px;height:16px;}
.faq-item[open] summary{color:var(--c-primary);}
.faq-item[open] summary .faq-icon::after{transform:rotate(90deg);opacity:0;}
.faq-answer{padding:2px 2px 20px;color:var(--c-ink-2);font-size:15px;line-height:1.85;border-left:3px solid var(--c-primary);padding-left:16px;margin-left:2px;}
/* download */
.dl-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:20px;}
.dl-card{
  background:#fff;border:1px solid var(--c-line);border-radius:var(--radius-card);
  padding:26px 22px;min-width:0;box-shadow:var(--shadow-1);display:flex;flex-direction:column;gap:10px;
  transition:box-shadow .22s ease,border-color .18s ease,transform .18s ease;
}
.dl-card:hover{box-shadow:var(--shadow-2);border-color:var(--c-primary);transform:translateY(-2px);}
.dl-ico{width:44px;height:44px;border-radius:12px;background:var(--c-chip);color:var(--c-primary);display:flex;align-items:center;justify-content:center;font-size:19px;}
.dl-card h3{font-size:16px;}
.dl-card p{font-size:14px;color:var(--c-ink-2);line-height:1.75;margin:0;}
.dl-card .btn{margin-top:auto;width:100%;}
/* risk */
.risk-note{
  background:#FBF2F0;border:1px solid #EBD5D1;border-left:4px solid var(--c-danger);
  border-radius:var(--radius-card);padding:20px 24px;
}
.risk-note h3{font-size:16px;color:var(--c-danger);margin-bottom:8px;display:flex;align-items:center;gap:8px;}
.risk-note p{font-size:14px;line-height:1.8;color:#6B4139;margin:0;}
/* closing */
.closing-card{
  background:var(--c-sand);border:1px solid var(--c-line);border-radius:var(--radius-card);
  padding:32px;display:flex;align-items:center;justify-content:space-between;gap:24px;flex-wrap:wrap;
}
.closing-card h2{font-size:20px;margin-bottom:6px;}
.closing-card p{margin:0;font-size:14px;color:var(--c-ink-2);line-height:1.75;}
.closing-actions{display:flex;flex-wrap:wrap;gap:12px;}
/* footer */
.site-footer{background:var(--c-dark);color:#B9B2A6;padding:56px 0 0;margin-top:0;}
.footer-grid{display:grid;grid-template-columns:1.7fr 1fr 1fr 1fr;gap:32px;}
.footer-brand .brand-mark{color:#F4F0E8;display:block;}
.footer-brand .brand-sub{color:#8F877A;display:block;margin-bottom:14px;}
.footer-brand p{font-size:14px;line-height:1.8;color:#A39B8E;margin:0;max-width:34em;}
.site-footer h4{font-size:15px;color:#F4F0E8;margin-bottom:14px;font-weight:700;}
.footer-links{list-style:none;margin:0;padding:0;}
.footer-links li{margin-bottom:10px;}
.footer-links a{color:#B9B2A6;font-size:14px;}
.footer-links a:hover{color:var(--c-primary);}
.footer-bottom{
  margin-top:40px;border-top:1px solid rgba(255,255,255,.10);
  padding:20px 0;display:flex;justify-content:space-between;align-items:center;gap:12px;flex-wrap:wrap;
  font-size:13px;color:#8F877A;
}
.footer-bottom p{margin:0;}
.foot-note{color:#8F877A;}
@media (max-width:1023px){
  .site-container{padding:0 20px;}
  .site-section{padding:56px 0;}
  .metric-strip{grid-template-columns:repeat(2,minmax(0,1fr));}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px;}
  .nav-wrap{gap:14px;}
  .cat-band-inner{align-items:flex-start;}
  .cat-band-side{align-items:flex-start;}
}
@media (max-width:767px){
  .post-grid{grid-template-columns:1fr;}
  .vs-grid{grid-template-columns:1fr;}
  .term-grid{grid-template-columns:1fr;gap:0;}
  .dl-grid{grid-template-columns:1fr;}
  .cat-band-side{align-items:flex-start;}
  .closing-card{padding:24px;}
  .nav-actions .btn{min-height:36px;padding:0 14px;font-size:13px;}
}
@media (max-width:520px){
  .site-container{padding:0 16px;}
  .site-section{padding:40px 0;}
  .nav-wrap{min-height:60px;}
  .nav-chips{order:3;width:100%;flex:1 1 100%;}
  .nav-actions{margin-left:auto;}
  .metric-strip{grid-template-columns:1fr;}
  .footer-grid{grid-template-columns:1fr;}
  .point-list li{gap:12px;}
  .point-num{font-size:22px;}
  .closing-actions{width:100%;}
  .closing-actions .btn{width:100%;}
  .footer-bottom{flex-direction:column;align-items:flex-start;}
}