/* roulang page: index */
:root{
  --ink:#0d1a15;
  --ink-soft:#22332c;
  --brand:#0f4d3f;
  --brand-2:#16705c;
  --brand-3:#0a3a2f;
  --gold:#c39a52;
  --gold-soft:#f1e6d2;
  --bg:#f7f6f2;
  --bg-alt:#eef1ec;
  --card:#ffffff;
  --line:#e2ded4;
  --muted:#5f6b66;
  --radius-lg:20px;
  --radius:14px;
  --radius-sm:10px;
  --shadow-sm:0 2px 8px rgba(13,26,21,.06);
  --shadow:0 12px 32px rgba(13,26,21,.10);
  --shadow-lg:0 24px 60px rgba(13,26,21,.16);
  --max:1180px;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;}
body{
  margin:0;
  font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Source Han Sans SC",system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:16px;
  line-height:1.75;
  color:var(--ink);
  background:var(--bg);
  overflow-x:hidden;
}
img{max-width:100%;height:auto;display:block;}
a{color:var(--brand-2);text-decoration:none;transition:color .2s ease;}
a:hover{color:var(--gold);}
ul,ol{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4{margin:0;line-height:1.32;font-weight:700;letter-spacing:.2px;}
p{margin:0 0 14px;}
p:last-child{margin-bottom:0;}
button{font-family:inherit;}
:focus-visible{outline:2px solid var(--brand-2);outline-offset:3px;border-radius:6px;}

.container{width:100%;max-width:var(--max);margin:0 auto;padding:0 24px;}

/* ============ 顶部导航 ============ */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(247,246,242,.92);
  backdrop-filter:saturate(160%) blur(10px);
  border-bottom:1px solid var(--line);
}
.nav-wrap{display:flex;align-items:center;gap:20px;min-height:74px;}
.brand{display:flex;align-items:center;gap:11px;flex-shrink:0;color:var(--ink);}
.brand:hover{color:var(--ink);}
.brand-mark{
  width:40px;height:40px;border-radius:12px;
  background:linear-gradient(145deg,var(--brand-2),var(--brand-3));
  color:#f6e7c8;font-weight:700;font-size:19px;
  display:flex;align-items:center;justify-content:center;
  box-shadow:0 6px 16px rgba(15,77,63,.28);
  flex-shrink:0;
}
.brand-text{display:flex;flex-direction:column;line-height:1.2;}
.brand-name{font-size:19px;font-weight:700;letter-spacing:.5px;white-space:nowrap;}
.brand-sub{font-size:11.5px;color:var(--muted);letter-spacing:1.4px;white-space:nowrap;}
.nav-menu{display:flex;align-items:center;gap:4px;margin-left:14px;}
.nav-menu a{
  display:inline-block;padding:9px 14px;border-radius:10px;
  font-size:15px;color:var(--ink-soft);font-weight:500;white-space:nowrap;
  transition:background .2s ease,color .2s ease;
}
.nav-menu a:hover{background:#e8ece6;color:var(--brand);}
.nav-menu a.active{background:var(--brand);color:#fff;}
.nav-cta{display:flex;align-items:center;gap:10px;margin-left:auto;flex-shrink:0;}
.nav-toggle{
  display:none;margin-left:auto;background:#fff;border:1px solid var(--line);
  border-radius:10px;width:42px;height:40px;padding:0;cursor:pointer;
  flex-direction:column;justify-content:center;align-items:center;gap:4px;
}
.nav-toggle span{display:block;width:18px;height:2px;background:var(--ink-soft);border-radius:2px;}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:12px 22px;border-radius:12px;font-size:15px;font-weight:600;
  border:1px solid transparent;cursor:pointer;white-space:nowrap;
  transition:transform .18s ease,box-shadow .18s ease,background .18s ease,color .18s ease,border-color .18s ease;
}
.btn-primary{background:linear-gradient(145deg,var(--brand-2),var(--brand));color:#fff;box-shadow:0 10px 24px rgba(15,77,63,.26);}
.btn-primary:hover{color:#fff;transform:translateY(-2px);box-shadow:0 16px 30px rgba(15,77,63,.32);}
.btn-primary:active{transform:translateY(0);box-shadow:0 6px 14px rgba(15,77,63,.24);}
.btn-ghost{background:#fff;color:var(--ink-soft);border-color:var(--line);box-shadow:var(--shadow-sm);}
.btn-ghost:hover{color:var(--brand);border-color:#c9d5cd;background:#fbfcfa;transform:translateY(-2px);}
.btn-gold{background:linear-gradient(145deg,#d8b571,#bd8f45);color:#26180a;box-shadow:0 10px 24px rgba(189,143,69,.3);}
.btn-gold:hover{color:#1c1206;transform:translateY(-2px);box-shadow:0 16px 30px rgba(189,143,69,.36);}
.btn-sm{padding:9px 16px;font-size:14px;border-radius:10px;}
.btn-block{width:100%;}

/* ============ 通用板块 ============ */
.section{padding:72px 0;}
.section--alt{background:var(--bg-alt);}
.section--dark{background:linear-gradient(160deg,#0d2a23,#0a1f1a 70%);color:#e9efec;}
.section--dark .section-title,.section--dark h2,.section--dark h3{color:#fff;}
.section--dark .section-desc{color:#b7c6bf;}
.section-head{max-width:800px;margin-bottom:36px;}
.section-head.center{margin-left:auto;margin-right:auto;text-align:center;}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;font-weight:600;letter-spacing:1.2px;
  color:var(--brand-2);background:#e6efe9;border:1px solid #d3e3da;
  padding:6px 14px;border-radius:999px;margin-bottom:16px;
}
.section--dark .eyebrow{background:rgba(195,154,82,.14);border-color:rgba(195,154,82,.32);color:#e3c896;}
.section-title{font-size:30px;margin-bottom:14px;}
.section-desc{color:var(--muted);font-size:16px;line-height:1.85;}

/* ============ Hero ============ */
.hero{padding:56px 0 64px;background:
  radial-gradient(1100px 460px at 88% -10%,#e3ece5 0%,rgba(247,246,242,0) 62%),
  linear-gradient(180deg,#f7f6f2 0%,#f3f4ef 100%);
  border-bottom:1px solid var(--line);}
.hero-grid{display:grid;grid-template-columns:minmax(0,1.08fr) minmax(0,.92fr);gap:44px;align-items:start;}
.hero-main{min-width:0;}
.hero h1{font-size:40px;line-height:1.28;margin-bottom:18px;letter-spacing:.4px;}
.hero h1 em{font-style:normal;color:var(--brand);background:linear-gradient(180deg,transparent 68%,#e5d7b9 68%);padding:0 2px;}
.hero-lead{font-size:16.5px;color:#41504a;line-height:1.9;margin-bottom:26px;}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-bottom:26px;}
.hero-points{display:flex;flex-wrap:wrap;gap:10px;}
.hero-points li{
  display:inline-flex;align-items:center;gap:7px;
  background:#fff;border:1px solid var(--line);border-radius:999px;
  padding:7px 14px;font-size:13.5px;color:var(--ink-soft);box-shadow:var(--shadow-sm);
}
.hero-points i{color:var(--brand-2);font-size:12px;}

/* Hero Bento */
.hero-bento{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:14px;min-width:0;}
.bento{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius-lg);
  padding:20px;box-shadow:var(--shadow-sm);min-width:0;
  transition:transform .2s ease,box-shadow .2s ease;
}
.bento:hover{transform:translateY(-3px);box-shadow:var(--shadow);}
.bento-span2{grid-column:span 2;}
.bento-label{font-size:12.5px;letter-spacing:1px;color:var(--muted);text-transform:uppercase;margin-bottom:10px;}
.bento-title{font-size:17px;font-weight:700;margin-bottom:8px;}
.bento-text{font-size:13.5px;color:var(--muted);line-height:1.75;margin:0;}
.bento-flow{background:linear-gradient(150deg,#0f4d3f,#0a3a2f);border-color:#0d3c31;color:#eaf2ee;}
.bento-flow .bento-label{color:#a9c6bb;}
.bento-flow .bento-text{color:#c2d5cd;}
.flow-steps{display:flex;flex-direction:column;gap:9px;margin-top:14px;}
.flow-steps li{display:flex;align-items:center;gap:10px;font-size:13.5px;color:#e6f0ea;}
.flow-steps .dot{
  width:22px;height:22px;border-radius:50%;flex-shrink:0;
  background:rgba(195,154,82,.2);border:1px solid rgba(195,154,82,.5);
  color:#e8cb96;font-size:11.5px;font-weight:700;
  display:flex;align-items:center;justify-content:center;
}
.bento-screen{background:#0d1a15;border-color:#12261f;color:#dfe9e4;padding:0;overflow:hidden;}
.screen-bar{display:flex;align-items:center;gap:6px;padding:11px 14px;background:#12261f;border-bottom:1px solid #1b352c;}
.screen-bar i{width:8px;height:8px;border-radius:50%;background:#2c4a3e;display:inline-block;}
.screen-bar span{margin-left:auto;font-size:11px;color:#7e9a8e;letter-spacing:.6px;}
.screen-body{padding:16px;}
.screen-row{display:flex;justify-content:space-between;align-items:center;gap:10px;padding:9px 0;border-bottom:1px dashed #1e382e;font-size:13px;color:#bfd3ca;}
.screen-row:last-child{border-bottom:0;}
.screen-row b{color:#f0d9ab;font-weight:600;}
.screen-tag{font-size:11px;padding:3px 9px;border-radius:999px;background:rgba(195,154,82,.16);color:#e8cb96;border:1px solid rgba(195,154,82,.35);}
.bento-note{display:flex;gap:10px;align-items:flex-start;}
.bento-note i{color:var(--gold);font-size:16px;margin-top:3px;}

/* ============ 卡片网格 ============ */
.grid-2{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:20px;}
.grid-3{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:20px;}
.grid-4{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:18px;}
.grid-2 > *,.grid-3 > *,.grid-4 > *{min-width:0;}

.card{
  background:var(--card);border:1px solid var(--line);border-radius:var(--radius-lg);
  padding:26px;box-shadow:var(--shadow-sm);min-width:0;
  transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.card:hover{transform:translateY(-4px);box-shadow:var(--shadow);border-color:#d5ded7;}
.card-icon{
  width:46px;height:46px;border-radius:13px;display:flex;align-items:center;justify-content:center;
  background:#eaf1ec;color:var(--brand);font-size:19px;margin-bottom:16px;
  transition:background .2s ease,color .2s ease;
}
.card:hover .card-icon{background:var(--brand);color:#f4e6c9;}
.card h3{font-size:18px;margin-bottom:10px;}
.card p{font-size:14.5px;color:var(--muted);line-height:1.8;margin:0;}
.card-tag{
  display:inline-block;margin-top:14px;font-size:12.5px;color:var(--brand-2);
  background:#eef4f0;border:1px solid #dbe8e1;padding:4px 11px;border-radius:999px;
}

/* ============ 流程时间线 ============ */
.timeline{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:18px;counter-reset:step;}
.tl-item{
  position:relative;background:#fff;border:1px solid var(--line);
  border-radius:var(--radius);padding:24px 20px 22px;box-shadow:var(--shadow-sm);min-width:0;
  transition:transform .2s ease,box-shadow .2s ease;
}
.tl-item:hover{transform:translateY(-3px);box-shadow:var(--shadow);}
.tl-num{
  display:inline-flex;align-items:center;justify-content:center;
  width:34px;height:34px;border-radius:10px;margin-bottom:14px;
  background:linear-gradient(145deg,var(--brand-2),var(--brand));color:#f6e8cb;
  font-weight:700;font-size:15px;
}
.tl-item h3{font-size:16.5px;margin-bottom:8px;}
.tl-item p{font-size:14px;color:var(--muted);line-height:1.78;margin:0;}

/* ============ 要素矩阵 ============ */
.matrix{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:18px;}
.mx-item{
  background:#fff;border:1px solid var(--line);border-left:4px solid var(--gold);
  border-radius:var(--radius);padding:22px 24px;min-width:0;
  transition:box-shadow .2s ease,transform .2s ease;
}
.mx-item:hover{box-shadow:var(--shadow);transform:translateY(-2px);}
.mx-item h3{font-size:17px;margin-bottom:9px;display:flex;align-items:center;gap:9px;flex-wrap:wrap;}
.mx-item h3 span{font-size:12px;font-weight:500;color:var(--brand-2);background:#eef4f0;border-radius:999px;padding:3px 10px;}
.mx-item p{font-size:14.5px;color:var(--muted);line-height:1.8;margin:0;}

/* ============ 场景 ============ */
.scene-list{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:18px;}
.scene{
  display:flex;gap:16px;background:#fff;border:1px solid var(--line);
  border-radius:var(--radius);padding:22px;min-width:0;box-shadow:var(--shadow-sm);
  transition:transform .2s ease,box-shadow .2s ease;
}
.scene:hover{transform:translateY(-3px);box-shadow:var(--shadow);}
.scene-ico{
  width:42px;height:42px;border-radius:12px;flex-shrink:0;
  background:#0f4d3f;color:#f0dcb6;display:flex;align-items:center;justify-content:center;font-size:17px;
}
.scene h3{font-size:16.5px;margin-bottom:7px;}
.scene p{font-size:14px;color:var(--muted);line-height:1.78;margin:0;}

/* ============ 演示分屏 ============ */
.demo-grid{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:40px;align-items:center;}
.demo-list{display:flex;flex-direction:column;gap:16px;margin-top:22px;}
.demo-list li{
  display:flex;gap:13px;background:rgba(255,255,255,.06);
  border:1px solid rgba(255,255,255,.12);border-radius:var(--radius);padding:16px 18px;
  min-width:0;
}
.demo-list .num{
  width:26px;height:26px;border-radius:8px;flex-shrink:0;
  background:rgba(195,154,82,.18);border:1px solid rgba(195,154,82,.45);color:#e8cb96;
  display:flex;align-items:center;justify-content:center;font-size:12.5px;font-weight:700;
}
.demo-list h3{font-size:15.5px;margin-bottom:5px;color:#fff;}
.demo-list p{font-size:13.8px;color:#aebfb8;line-height:1.75;margin:0;}
.demo-window{
  background:#0a1713;border:1px solid #1b352c;border-radius:18px;
  box-shadow:var(--shadow-lg);overflow:hidden;min-width:0;
}
.demo-top{display:flex;align-items:center;gap:7px;padding:13px 16px;background:#122620;border-bottom:1px solid #1b352c;}
.demo-top i{width:9px;height:9px;border-radius:50%;background:#2d4c40;display:inline-block;}
.demo-top span{margin-left:auto;font-size:11.5px;color:#7f9b8f;letter-spacing:.5px;}
.demo-body{padding:20px;display:flex;flex-direction:column;gap:14px;}
.demo-block{background:#0f221c;border:1px solid #1b352c;border-radius:12px;padding:15px 16px;min-width:0;}
.demo-block .k{font-size:11.5px;color:#7f9b8f;letter-spacing:.8px;margin-bottom:9px;}
.demo-line{display:flex;justify-content:space-between;align-items:center;gap:12px;font-size:13.2px;color:#c1d3cb;padding:6px 0;}
.demo-line b{color:#f0d9ab;font-weight:600;}
.bar-track{height:7px;border-radius:999px;background:#1b352c;overflow:hidden;margin-top:10px;}
.bar-fill{height:100%;width:62%;border-radius:999px;background:linear-gradient(90deg,#16705c,#c39a52);}
.demo-chip{display:inline-block;font-size:11.5px;padding:3px 10px;border-radius:999px;background:rgba(195,154,82,.15);border:1px solid rgba(195,154,82,.35);color:#e8cb96;}

/* ============ 风控图标条 ============ */
.risk-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:18px;}
.risk-item{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius);
  padding:24px 20px;text-align:center;min-width:0;box-shadow:var(--shadow-sm);
  transition:transform .2s ease,box-shadow .2s ease;
}
.risk-item:hover{transform:translateY(-3px);box-shadow:var(--shadow);}
.risk-item i{font-size:24px;color:var(--brand-2);margin-bottom:12px;display:block;}
.risk-item h3{font-size:16px;margin-bottom:8px;}
.risk-item p{font-size:13.6px;color:var(--muted);line-height:1.75;margin:0;}

/* ============ 自查清单 ============ */
.checklist{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:14px;}
.check-item{
  display:flex;gap:12px;background:#fff;border:1px solid var(--line);
  border-radius:var(--radius-sm);padding:16px 18px;min-width:0;
  transition:border-color .2s ease,background .2s ease;
}
.check-item:hover{border-color:#cddad2;background:#fcfdfb;}
.check-item i{color:var(--brand-2);font-size:15px;margin-top:4px;flex-shrink:0;}
.check-item strong{display:block;font-size:15px;margin-bottom:4px;}
.check-item span{font-size:13.8px;color:var(--muted);line-height:1.72;}

/* ============ 术语词典 ============ */
.glossary{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:0 34px;}
.gi{padding:18px 0;border-bottom:1px dashed var(--line);min-width:0;}
.gi dt{font-size:16px;font-weight:700;color:var(--ink);margin-bottom:6px;}
.gi dd{margin:0;font-size:14.2px;color:var(--muted);line-height:1.78;}

/* ============ 下载区 ============ */
.download-wrap{
  background:linear-gradient(155deg,#0f4d3f,#08261f 78%);
  border-radius:26px;padding:48px 44px;color:#eaf2ee;
  box-shadow:var(--shadow-lg);position:relative;overflow:hidden;
}
.download-wrap::after{
  content:"";position:absolute;right:-90px;top:-90px;width:300px;height:300px;border-radius:50%;
  background:radial-gradient(circle,rgba(195,154,82,.28),rgba(195,154,82,0) 68%);
}
.download-grid{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1.05fr);gap:40px;align-items:center;position:relative;z-index:2;}
.download-wrap h2{font-size:28px;color:#fff;margin-bottom:14px;}
.download-wrap p{color:#bcd0c8;font-size:15px;line-height:1.85;}
.dl-actions{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:12px;}
.dl-btn{
  display:flex;flex-direction:column;align-items:center;justify-content:center;gap:7px;
  padding:18px 12px;border-radius:14px;background:rgba(255,255,255,.07);
  border:1px solid rgba(255,255,255,.18);color:#f1f6f3;font-size:14px;font-weight:600;
  transition:background .2s ease,transform .2s ease,border-color .2s ease;
  min-width:0;text-align:center;
}
.dl-btn i{font-size:20px;color:#e8cb96;}
.dl-btn:hover{background:rgba(255,255,255,.14);color:#fff;transform:translateY(-3px);border-color:rgba(195,154,82,.6);}
.dl-btn small{font-weight:400;font-size:11.5px;color:#9db8ae;letter-spacing:.5px;}
.dl-note{margin-top:16px;font-size:12.8px;color:#93b0a6;line-height:1.7;}

/* ============ 分类入口 ============ */
.cat-entry{
  display:flex;align-items:center;gap:24px;background:#fff;border:1px solid var(--line);
  border-radius:var(--radius-lg);padding:30px 32px;box-shadow:var(--shadow-sm);
  transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;min-width:0;
}
.cat-entry:hover{transform:translateY(-3px);box-shadow:var(--shadow);border-color:#cfdcd4;}
.cat-entry .cat-ico{
  width:58px;height:58px;border-radius:16px;flex-shrink:0;
  background:linear-gradient(145deg,#eaf1ec,#dde9e2);color:var(--brand);
  display:flex;align-items:center;justify-content:center;font-size:23px;
}
.cat-entry .cat-body{min-width:0;flex:1;}
.cat-entry h3{font-size:19px;margin-bottom:8px;}
.cat-entry p{font-size:14.5px;color:var(--muted);line-height:1.8;margin:0;}
.cat-entry .cat-go{
  flex-shrink:0;font-size:14px;font-weight:600;color:var(--brand-2);
  display:inline-flex;align-items:center;gap:7px;
}
.cat-entry:hover .cat-go{color:var(--gold);}

/* ============ 资讯列表 ============ */
.news-layout{display:grid;grid-template-columns:minmax(0,1.65fr) minmax(0,1fr);gap:28px;align-items:start;}
.news-list{display:flex;flex-direction:column;gap:14px;}
.news-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius);
  padding:20px 22px;min-width:0;box-shadow:var(--shadow-sm);
  transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.news-card:hover{transform:translateY(-2px);box-shadow:var(--shadow);border-color:#d3ded6;}
.news-meta{display:flex;flex-wrap:wrap;gap:10px;font-size:12.5px;color:var(--muted);margin-bottom:8px;}
.news-meta span{display:inline-flex;align-items:center;gap:5px;}
.news-meta .tag{background:#eef4f0;color:var(--brand-2);border:1px solid #dbe8e1;padding:2px 9px;border-radius:999px;}
.news-card h3{font-size:17px;margin-bottom:8px;line-height:1.55;}
.news-card h3 a{color:var(--ink);}
.news-card h3 a:hover{color:var(--brand-2);}
.news-card p{font-size:14px;color:var(--muted);line-height:1.78;margin:0;}
.news-side{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius-lg);
  padding:24px;box-shadow:var(--shadow-sm);min-width:0;
}
.news-side h3{font-size:16.5px;margin-bottom:16px;padding-bottom:12px;border-bottom:1px solid var(--line);}
.news-side ul{display:flex;flex-direction:column;gap:14px;}
.news-side li{min-width:0;}
.news-side li a{font-size:14.2px;color:var(--ink-soft);line-height:1.6;display:block;}
.news-side li a:hover{color:var(--brand-2);}
.news-side li small{display:block;font-size:12px;color:var(--muted);margin-top:3px;}
.empty-note{
  background:#fff;border:1px dashed var(--line);border-radius:var(--radius);
  padding:34px 22px;text-align:center;color:var(--muted);font-size:14.5px;
}

/* ============ FAQ ============ */
.faq-list{display:flex;flex-direction:column;gap:12px;max-width:900px;margin:0 auto;}
.faq-item{background:#fff;border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;transition:box-shadow .2s ease;}
.faq-item[open]{box-shadow:var(--shadow);}
.faq-item summary{
  cursor:pointer;list-style:none;padding:18px 22px;font-size:16px;font-weight:600;
  display:flex;align-items:center;justify-content:space-between;gap:14px;
  transition:background .2s ease,color .2s ease;
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary:hover{background:#f6f9f6;color:var(--brand);}
.faq-item summary::after{content:"\f078";font-family:"Font Awesome 6 Free";font-weight:900;font-size:12px;color:var(--brand-2);flex-shrink:0;transition:transform .2s ease;}
.faq-item[open] summary::after{transform:rotate(180deg);}
.faq-body{padding:0 22px 20px;font-size:14.5px;color:var(--muted);line-height:1.85;}

/* ============ 收口 CTA ============ */
.final-cta{
  background:linear-gradient(140deg,#123f33,#0a241d);
  border-radius:26px;padding:52px 40px;text-align:center;color:#eaf2ee;
  box-shadow:var(--shadow-lg);
}
.final-cta h2{font-size:29px;color:#fff;margin-bottom:14px;}
.final-cta p{color:#b9cdc5;font-size:15.5px;max-width:720px;margin:0 auto 26px;line-height:1.85;}
.final-cta .hero-actions{justify-content:center;margin-bottom:0;}

/* ============ 页脚 ============ */
.site-footer{background:#0b1f1a;color:#a9bdb5;padding:56px 0 26px;margin-top:0;}
.footer-grid{display:grid;grid-template-columns:minmax(0,1.5fr) repeat(3,minmax(0,1fr));gap:34px;}
.footer-brand .brand-name{color:#fff;}
.footer-brand .brand-sub{color:#8ba49a;}
.footer-brand p{font-size:13.8px;color:#93aca2;line-height:1.85;margin-top:16px;max-width:340px;}
.footer-col h4{font-size:15px;color:#fff;margin-bottom:14px;}
.footer-col ul{display:flex;flex-direction:column;gap:10px;}
.footer-col a{font-size:13.8px;color:#a2b8af;}
.footer-col a:hover{color:#e8cb96;}
.footer-risk{
  margin-top:36px;padding:18px 22px;border-radius:var(--radius);
  background:rgba(255,255,255,.04);border:1px solid rgba(255,255,255,.08);
  font-size:12.8px;color:#8ba49a;line-height:1.8;
}
.footer-bottom{
  margin-top:22px;padding-top:20px;border-top:1px solid rgba(255,255,255,.08);
  display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;
  font-size:12.8px;color:#7f988e;
}

/* ============ 响应式 ============ */
@media (max-width:1024px){
  .hero h1{font-size:33px;}
  .hero-grid{grid-template-columns:1fr;gap:32px;}
  .grid-4{grid-template-columns:repeat(2,minmax(0,1fr));}
  .grid-3{grid-template-columns:repeat(2,minmax(0,1fr));}
  .timeline{grid-template-columns:repeat(2,minmax(0,1fr));}
  .risk-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
  .demo-grid{grid-template-columns:1fr;gap:28px;}
  .news-layout{grid-template-columns:1fr;}
  .download-grid{grid-template-columns:1fr;gap:26px;}
  .footer-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:28px;}
  .nav-menu{margin-left:6px;}
}
@media (max-width:860px){
  .nav-menu,.nav-cta{
    display:none;
  }
  .nav-menu.is-open{
    display:flex;flex-direction:column;align-items:stretch;
    position:absolute;left:0;right:0;top:74px;background:#fff;
    border-bottom:1px solid var(--line);padding:12px 18px 18px;gap:6px;
    box-shadow:0 18px 30px rgba(13,26,21,.12);
  }
  .nav-menu.is-open a{padding:12px 14px;border-radius:10px;}
  .nav-toggle{display:flex;}
  .nav-wrap{position:relative;flex-wrap:wrap;}
  .site-header{position:sticky;}
}
@media (max-width:768px){
  .section{padding:52px 0;}
  .section-title{font-size:24px;}
  .hero{padding:34px 0 46px;}
  .hero h1{font-size:27px;}
  .hero-lead{font-size:15.5px;}
  .grid-2,.grid-3,.grid-4,.matrix,.scene-list,.checklist,.glossary{grid-template-columns:1fr;}
  .timeline{grid-template-columns:1fr;}
  .bento-span2{grid-column:span 2;}
  .download-wrap,.final-cta{padding:34px 24px;border-radius:20px;}
  .dl-actions{grid-template-columns:1fr;gap:10px;}
  .dl-btn{flex-direction:row;justify-content:flex-start;gap:12px;padding:15px 18px;}
  .dl-btn small{margin-left:auto;}
  .cat-entry{flex-direction:column;align-items:flex-start;gap:16px;padding:24px;}
  .footer-grid{grid-template-columns:1fr;}
  .footer-bottom{flex-direction:column;gap:8px;}
  .download-wrap h2,.final-cta h2{font-size:23px;}
}
@media (max-width:520px){
  .container{padding:0 16px;}
  .brand-name{font-size:17px;}
  .brand-sub{font-size:10.5px;letter-spacing:1px;}
  .hero h1{font-size:23.5px;}
  .hero-bento{grid-template-columns:1fr;}
  .bento-span2{grid-column:span 1;}
  .btn{padding:11px 18px;font-size:14px;width:100%;}
  .hero-actions{flex-direction:column;align-items:stretch;}
  .news-card,.card,.mx-item,.risk-item{padding:20px;}
  .glossary{gap:0;}
}

/* roulang page: article */
:root{
  --ink:#0d1a15;
  --ink-soft:#22332c;
  --brand:#0f4d3f;
  --brand-2:#16705c;
  --brand-3:#0a3a2f;
  --gold:#c39a52;
  --gold-soft:#f1e6d2;
  --bg:#f7f6f2;
  --bg-alt:#eef1ec;
  --card:#ffffff;
  --line:#e2ded4;
  --muted:#5f6b66;
  --radius-lg:20px;
  --radius:14px;
  --radius-sm:10px;
  --shadow-sm:0 2px 8px rgba(13,26,21,.06);
  --shadow:0 12px 32px rgba(13,26,21,.10);
  --shadow-lg:0 24px 60px rgba(13,26,21,.16);
  --max:1180px;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Source Han Sans SC",system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:16px;
  line-height:1.75;
  color:var(--ink);
  background:var(--bg);
  overflow-x:hidden;
}
img{max-width:100%;height:auto;display:block;}
a{color:var(--brand-2);text-decoration:none;transition:color .2s ease;}
a:hover{color:var(--gold);}
button{font-family:inherit;}
ul,ol{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4{margin:0;font-weight:700;line-height:1.35;}
p{margin:0;}
.container{width:100%;max-width:var(--max);margin:0 auto;padding:0 24px;}

/* ============ 顶部导航 ============ */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(247,246,242,.92);
  backdrop-filter:saturate(160%) blur(10px);
  border-bottom:1px solid var(--line);
}
.nav-wrap{display:flex;align-items:center;gap:20px;min-height:74px;position:relative;}
.brand{display:flex;align-items:center;gap:11px;flex-shrink:0;color:var(--ink);}
.brand:hover{color:var(--ink);}
.brand-mark{
  width:40px;height:40px;border-radius:12px;
  background:linear-gradient(145deg,var(--brand-2),var(--brand-3));
  color:#f6e7c8;font-weight:700;font-size:19px;
  display:flex;align-items:center;justify-content:center;
  box-shadow:0 6px 16px rgba(15,77,63,.28);
  flex-shrink:0;
}
.brand-text{display:flex;flex-direction:column;line-height:1.2;}
.brand-name{font-size:19px;font-weight:700;letter-spacing:.5px;white-space:nowrap;}
.brand-sub{font-size:11.5px;color:var(--muted);letter-spacing:1.4px;white-space:nowrap;}
.nav-menu{display:flex;align-items:center;gap:4px;margin-left:14px;}
.nav-menu a{
  display:inline-block;padding:9px 14px;border-radius:10px;
  font-size:15px;color:var(--ink-soft);font-weight:500;white-space:nowrap;
  transition:background .2s ease,color .2s ease;
}
.nav-menu a:hover{background:#e8ece6;color:var(--brand);}
.nav-menu a.active{background:var(--brand);color:#fff;}
.nav-cta{display:flex;align-items:center;gap:10px;margin-left:auto;flex-shrink:0;}
.nav-toggle{
  display:none;margin-left:auto;background:#fff;border:1px solid var(--line);
  border-radius:10px;width:42px;height:40px;padding:0;cursor:pointer;
  flex-direction:column;justify-content:center;align-items:center;gap:4px;
}
.nav-toggle span{display:block;width:18px;height:2px;background:var(--ink-soft);border-radius:2px;}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:12px 22px;border-radius:12px;font-size:15px;font-weight:600;
  border:1px solid transparent;cursor:pointer;white-space:nowrap;
  transition:transform .18s ease,box-shadow .18s ease,background .18s ease,color .18s ease,border-color .18s ease;
}
.btn-primary{background:linear-gradient(145deg,var(--brand-2),var(--brand));color:#fff;box-shadow:0 10px 24px rgba(15,77,63,.26);}
.btn-primary:hover{color:#fff;transform:translateY(-2px);box-shadow:0 16px 30px rgba(15,77,63,.32);}
.btn-primary:active{transform:translateY(0);box-shadow:0 6px 14px rgba(15,77,63,.24);}
.btn-ghost{background:#fff;color:var(--ink-soft);border-color:var(--line);box-shadow:var(--shadow-sm);}
.btn-ghost:hover{color:var(--brand);border-color:#c9d5cd;background:#fbfcfa;transform:translateY(-2px);}
.btn-gold{background:linear-gradient(145deg,#d8b571,#bd8f45);color:#26180a;box-shadow:0 10px 24px rgba(189,143,69,.3);}
.btn-gold:hover{color:#1c1206;transform:translateY(-2px);box-shadow:0 16px 30px rgba(189,143,69,.36);}
.btn-sm{padding:9px 16px;font-size:14px;border-radius:10px;}
.btn:focus-visible,.nav-menu a:focus-visible,.nav-toggle:focus-visible,a:focus-visible{
  outline:2px solid var(--gold);outline-offset:2px;
}

/* ============ 通用板块 ============ */
.section{padding:64px 0;}
.section--alt{background:var(--bg-alt);}
.section--dark{background:linear-gradient(160deg,#0d2a23,#0a1f1a 70%);color:#e9efec;}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;font-weight:600;letter-spacing:1.2px;
  color:var(--brand-2);background:#e6efe9;border:1px solid #d3e3da;
  padding:6px 14px;border-radius:999px;margin-bottom:14px;
}
.section--dark .eyebrow{background:rgba(195,154,82,.14);border-color:rgba(195,154,82,.32);color:#e3c896;}
.section-title{font-size:28px;margin-bottom:12px;}
.section-desc{color:var(--muted);font-size:15.5px;line-height:1.85;max-width:760px;}
.section--dark .section-title{color:#fff;}
.section--dark .section-desc{color:#b7c6bf;}

/* ============ 面包屑 & 文章头部 ============ */
.crumb{padding:20px 0 0;font-size:13.5px;color:var(--muted);}
.crumb a{color:var(--muted);}
.crumb a:hover{color:var(--brand-2);}
.crumb span.sep{margin:0 8px;color:#bcc4be;}
.post-head{
  background:radial-gradient(900px 380px at 90% -20%,#e3ece5 0%,rgba(247,246,242,0) 65%),
             linear-gradient(180deg,#f7f6f2 0%,#f3f4ef 100%);
  border-bottom:1px solid var(--line);
  padding:26px 0 40px;
}
.post-head-inner{max-width:880px;}
.post-tag{
  display:inline-flex;align-items:center;gap:7px;
  font-size:12.5px;font-weight:600;letter-spacing:.8px;
  color:var(--gold);background:#fbf4e8;border:1px solid #ece0c9;
  padding:5px 13px;border-radius:999px;margin-bottom:16px;
}
.post-h1{font-size:34px;line-height:1.4;letter-spacing:.3px;color:var(--ink);margin-bottom:16px;overflow-wrap:break-word;}
.post-meta{display:flex;flex-wrap:wrap;gap:8px 20px;font-size:13.5px;color:var(--muted);margin-bottom:18px;}
.post-meta span{display:inline-flex;align-items:center;gap:7px;}
.post-meta i{color:var(--brand-2);font-size:12.5px;}
.post-lead{font-size:16px;color:#41504a;line-height:1.9;max-width:780px;}

/* ============ 文章布局 ============ */
.post-layout{
  display:grid;
  grid-template-columns:minmax(0,1fr) 320px;
  gap:36px;
  align-items:start;
  min-width:0;
}
.post-main{min-width:0;}
.post-card{
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--radius-lg);
  box-shadow:var(--shadow-sm);
  padding:34px 36px;
}
.prose{font-size:16.5px;line-height:1.95;color:#32403a;overflow-wrap:break-word;}
.prose h2{
  font-size:23px;margin:34px 0 14px;padding-left:14px;
  border-left:4px solid var(--gold);color:var(--ink);line-height:1.45;
}
.prose h2:first-child{margin-top:0;}
.prose h3{font-size:18.5px;margin:26px 0 10px;color:var(--brand-3);}
.prose h4{font-size:16.5px;margin:20px 0 8px;color:var(--ink-soft);}
.prose p{margin:0 0 16px;}
.prose ul,.prose ol{padding-left:22px;margin:0 0 18px;}
.prose ul{list-style:disc;}
.prose ol{list-style:decimal;}
.prose li{margin-bottom:8px;}
.prose a{color:var(--brand-2);border-bottom:1px solid #c9dcd4;}
.prose a:hover{color:var(--gold);border-bottom-color:#e3d3b4;}
.prose img{border-radius:var(--radius);margin:18px 0;box-shadow:var(--shadow-sm);}
.prose blockquote{
  margin:22px 0;padding:16px 20px;background:var(--bg-alt);
  border-left:4px solid var(--brand-2);border-radius:0 var(--radius-sm) var(--radius-sm) 0;
  color:var(--ink-soft);font-size:15.5px;
}
.prose blockquote p:last-child{margin-bottom:0;}
.prose table{
  width:100%;max-width:100%;display:block;overflow-x:auto;
  border-collapse:collapse;margin:20px 0;font-size:15px;
}
.prose th,.prose td{border:1px solid var(--line);padding:10px 12px;text-align:left;}
.prose th{background:var(--bg-alt);font-weight:600;white-space:nowrap;}
.prose hr{border:0;border-top:1px solid var(--line);margin:28px 0;}
.prose strong{color:var(--ink);}

/* ============ 侧栏 ============ */
.post-aside{display:flex;flex-direction:column;gap:18px;min-width:0;}
.aside-card{
  background:var(--card);border:1px solid var(--line);border-radius:var(--radius);
  box-shadow:var(--shadow-sm);padding:22px;
}
.aside-card h3{
  font-size:15.5px;color:var(--ink);margin-bottom:14px;
  display:flex;align-items:center;gap:9px;
}
.aside-card h3 i{color:var(--gold);font-size:14px;}
.aside-list li{
  display:flex;justify-content:space-between;gap:12px;
  font-size:14px;color:var(--muted);padding:8px 0;border-bottom:1px dashed var(--line);
}
.aside-list li:last-child{border-bottom:0;padding-bottom:0;}
.aside-list li b{color:var(--ink-soft);font-weight:600;text-align:right;}
.aside-link{
  display:flex;align-items:center;justify-content:space-between;gap:10px;
  padding:11px 14px;border-radius:10px;background:var(--bg-alt);
  font-size:14.5px;font-weight:600;color:var(--ink-soft);
  transition:background .2s ease,color .2s ease,transform .2s ease;
}
.aside-link + .aside-link{margin-top:10px;}
.aside-link:hover{background:var(--brand);color:#fff;transform:translateX(2px);}
.aside-dl{display:flex;flex-direction:column;gap:9px;}
.aside-dl a{
  display:flex;align-items:center;gap:9px;font-size:14.5px;font-weight:600;
  padding:10px 14px;border-radius:10px;border:1px solid var(--line);
  background:#fbfcfa;color:var(--ink-soft);transition:all .2s ease;
}
.aside-dl a:hover{border-color:#c9d5cd;background:#fff;color:var(--brand);transform:translateY(-1px);box-shadow:var(--shadow-sm);}
.aside-dl i{color:var(--brand-2);font-size:15px;width:18px;text-align:center;}

/* ============ 要素卡 ============ */
.elem-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:18px;}
.elem-card{
  background:var(--card);border:1px solid var(--line);border-radius:var(--radius);
  padding:22px 20px;box-shadow:var(--shadow-sm);min-width:0;
  transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.elem-card:hover{transform:translateY(-4px);box-shadow:var(--shadow);border-color:#d5ddD6;}
.elem-icon{
  width:42px;height:42px;border-radius:12px;display:flex;align-items:center;justify-content:center;
  background:#e8f0eb;color:var(--brand);font-size:17px;margin-bottom:14px;
}
.elem-card h3{font-size:16.5px;margin-bottom:8px;color:var(--ink);}
.elem-card p{font-size:14.5px;color:var(--muted);line-height:1.8;}

/* ============ 步骤 ============ */
.step-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:18px;}
.step-card{
  position:relative;background:var(--card);border:1px solid var(--line);
  border-radius:var(--radius);padding:24px 20px 22px;box-shadow:var(--shadow-sm);
  min-width:0;transition:transform .2s ease,box-shadow .2s ease;
}
.step-card:hover{transform:translateY(-4px);box-shadow:var(--shadow);}
.step-num{
  display:inline-flex;align-items:center;justify-content:center;
  width:32px;height:32px;border-radius:9px;font-size:14px;font-weight:700;
  background:linear-gradient(145deg,var(--brand-2),var(--brand-3));color:#f4e6c8;
  margin-bottom:12px;
}
.step-card h3{font-size:16px;margin-bottom:8px;color:var(--ink);}
.step-card p{font-size:14.5px;color:var(--muted);line-height:1.8;}

/* ============ 下载区 ============ */
.dl-zone{
  border-radius:var(--radius-lg);
  background:linear-gradient(150deg,#0f2a23,#0a1d18 72%);
  color:#e9efec;padding:44px 40px;
  box-shadow:var(--shadow-lg);
  border:1px solid rgba(195,154,82,.22);
  display:grid;grid-template-columns:minmax(0,1.05fr) minmax(0,.95fr);
  gap:32px;align-items:center;
}
.dl-zone h2{font-size:26px;color:#fff;margin-bottom:12px;}
.dl-zone p{color:#b7c6bf;font-size:15px;line-height:1.9;}
.dl-btns{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:12px;}
.dl-btn{
  display:flex;flex-direction:column;align-items:center;justify-content:center;gap:6px;
  padding:16px 10px;border-radius:var(--radius);text-align:center;
  background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.16);
  color:#eef4f1;font-size:14px;font-weight:600;min-width:0;
  transition:background .2s ease,transform .2s ease,border-color .2s ease,color .2s ease;
}
.dl-btn i{font-size:20px;color:#e3c896;}
.dl-btn span{white-space:normal;line-height:1.4;}
.dl-btn:hover{background:rgba(195,154,82,.18);border-color:rgba(195,154,82,.55);color:#fff;transform:translateY(-3px);}
.dl-note{margin-top:14px;font-size:12.5px;color:#8fa39a;line-height:1.7;}

/* ============ FAQ ============ */
.faq-list{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:16px;}
.faq-item{
  background:var(--card);border:1px solid var(--line);border-radius:var(--radius);
  box-shadow:var(--shadow-sm);overflow:hidden;min-width:0;
}
.faq-item summary{
  cursor:pointer;list-style:none;padding:18px 20px;font-size:16px;font-weight:600;
  color:var(--ink);display:flex;align-items:center;justify-content:space-between;gap:12px;
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary::after{
  content:"\f078";font-family:"Font Awesome 6 Free";font-weight:900;
  font-size:12px;color:var(--brand-2);transition:transform .2s ease;flex-shrink:0;
}
.faq-item[open] summary::after{transform:rotate(180deg);}
.faq-item summary:hover{background:#fbfcfa;}
.faq-body{padding:0 20px 18px;font-size:14.8px;color:var(--muted);line-height:1.85;}
.faq-body p{margin:0;}

/* ============ 提示条 / CTA ============ */
.risk-note{
  margin-top:22px;padding:16px 20px;border-radius:var(--radius-sm);
  background:#fbf4e8;border:1px solid #ece0c9;color:#7a6234;
  font-size:13.8px;line-height:1.8;
}
.risk-note b{color:#6a5324;}
.cta-band{
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:20px;
  background:var(--card);border:1px solid var(--line);border-radius:var(--radius-lg);
  padding:30px 34px;box-shadow:var(--shadow-sm);
}
.cta-band h2{font-size:21px;margin-bottom:6px;}
.cta-band p{font-size:14.8px;color:var(--muted);}
.cta-actions{display:flex;flex-wrap:wrap;gap:12px;}

/* ============ 页脚 ============ */
.site-footer{background:#0b201b;color:#b9c8c1;padding:56px 0 26px;margin-top:0;}
.footer-grid{
  display:grid;grid-template-columns:minmax(0,1.6fr) repeat(3,minmax(0,1fr));
  gap:34px;padding-bottom:30px;border-bottom:1px solid rgba(255,255,255,.1);
}
.footer-brand p{font-size:14px;line-height:1.9;color:#93a79e;margin-top:14px;max-width:400px;}
.site-footer .brand{color:#fff;}
.site-footer .brand-name{color:#fff;}
.site-footer .brand-sub{color:#8fa39a;}
.footer-col h4{font-size:15px;color:#fff;margin-bottom:14px;}
.footer-col ul li{margin-bottom:9px;}
.footer-col a{color:#a7b8b0;font-size:14px;}
.footer-col a:hover{color:var(--gold);}
.footer-risk{
  margin:26px 0 0;padding:14px 18px;border-radius:var(--radius-sm);
  background:rgba(195,154,82,.09);border:1px solid rgba(195,154,82,.22);
  font-size:13px;line-height:1.85;color:#c6b493;
}
.footer-bottom{
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;
  gap:10px;padding-top:22px;margin-top:22px;border-top:1px solid rgba(255,255,255,.1);
  font-size:13px;color:#839891;
}

/* ============ 响应式 ============ */
@media (max-width:1080px){
  .nav-cta{display:none;}
  .nav-toggle{display:flex;}
  .nav-menu{
    display:none;position:absolute;top:74px;left:0;right:0;margin-left:0;
    background:#fff;border-bottom:1px solid var(--line);box-shadow:var(--shadow);
    padding:12px 24px 16px;flex-direction:column;align-items:stretch;gap:4px;
  }
  .nav-menu.open{display:flex;}
  .nav-menu a{padding:11px 12px;font-size:15px;}
  .post-layout{grid-template-columns:minmax(0,1fr);gap:24px;}
  .post-aside{flex-direction:row;flex-wrap:wrap;}
  .post-aside .aside-card{flex:1 1 260px;min-width:0;}
  .elem-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
  .step-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
  .footer-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:26px;}
}
@media (max-width:768px){
  .container{padding:0 18px;}
  .section{padding:48px 0;}
  .hero-like,.post-head{padding-bottom:30px;}
  .post-h1{font-size:26px;}
  .post-card{padding:24px 20px;}
  .prose{font-size:16px;}
  .prose h2{font-size:20px;}
  .prose h3{font-size:17.5px;}
  .section-title{font-size:23px;}
  .dl-zone{grid-template-columns:minmax(0,1fr);padding:32px 24px;gap:24px;}
  .dl-zone h2{font-size:22px;}
  .faq-list{grid-template-columns:minmax(0,1fr);}
  .cta-band{padding:24px 22px;}
  .cta-band h2{font-size:19px;}
  .post-aside{flex-direction:column;}
  .post-aside .aside-card{flex:1 1 auto;width:100%;}
}
@media (max-width:520px){
  .nav-wrap{min-height:66px;gap:12px;}
  .nav-menu{top:66px;padding:10px 16px 14px;}
  .brand-name{font-size:17px;}
  .brand-sub{font-size:10.5px;letter-spacing:1px;}
  .brand-mark{width:36px;height:36px;font-size:17px;}
  .elem-grid{grid-template-columns:minmax(0,1fr);}
  .step-grid{grid-template-columns:minmax(0,1fr);}
  .dl-btns{grid-template-columns:minmax(0,1fr);}
  .dl-btn{flex-direction:row;justify-content:flex-start;gap:10px;padding:14px 16px;}
  .footer-grid{grid-template-columns:minmax(0,1fr);}
  .post-h1{font-size:22px;}
  .post-card{padding:20px 16px;}
  .post-lead{font-size:15px;}
  .cta-actions .btn{width:100%;}
  .footer-bottom{flex-direction:column;align-items:flex-start;}
}

/* roulang page: category1 */
:root{
  --ink:#0d1a15;
  --ink-soft:#22332c;
  --brand:#0f4d3f;
  --brand-2:#16705c;
  --brand-3:#0a3a2f;
  --gold:#c39a52;
  --gold-soft:#f1e6d2;
  --bg:#f7f6f2;
  --bg-alt:#eef1ec;
  --card:#ffffff;
  --line:#e2ded4;
  --muted:#5f6b66;
  --radius-lg:20px;
  --radius:14px;
  --radius-sm:10px;
  --shadow-sm:0 2px 8px rgba(13,26,21,.06);
  --shadow:0 12px 32px rgba(13,26,21,.10);
  --shadow-lg:0 24px 60px rgba(13,26,21,.16);
  --max:1180px;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Source Han Sans SC",system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:16px;line-height:1.75;color:var(--ink);background:var(--bg);overflow-x:hidden;
}
img{max-width:100%;height:auto;display:block;}
a{color:var(--brand-2);text-decoration:none;transition:color .2s ease;}
a:hover{color:var(--gold);}
h1,h2,h3,h4,p{margin:0;}
h1,h2,h3,h4{line-height:1.35;letter-spacing:.2px;}
ul,ol{margin:0;padding:0;list-style:none;}
button{font-family:inherit;}
:focus-visible{outline:2px solid var(--brand-2);outline-offset:3px;}
.container{width:100%;max-width:var(--max);margin:0 auto;padding:0 24px;}
/* ===== 顶部导航 ===== */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(247,246,242,.94);
  backdrop-filter:saturate(160%) blur(10px);
  border-bottom:1px solid var(--line);
}
.nav-wrap{display:flex;align-items:center;gap:20px;min-height:74px;}
.brand{display:flex;align-items:center;gap:11px;flex-shrink:0;color:var(--ink);}
.brand:hover{color:var(--ink);}
.brand-mark{
  width:40px;height:40px;border-radius:12px;
  background:linear-gradient(145deg,var(--brand-2),var(--brand-3));
  color:#f6e7c8;font-weight:700;font-size:19px;
  display:flex;align-items:center;justify-content:center;
  box-shadow:0 6px 16px rgba(15,77,63,.28);flex-shrink:0;
}
.brand-text{display:flex;flex-direction:column;line-height:1.2;}
.brand-name{font-size:19px;font-weight:700;letter-spacing:.5px;white-space:nowrap;}
.brand-sub{font-size:11.5px;color:var(--muted);letter-spacing:1.4px;white-space:nowrap;}
.nav-menu{display:flex;align-items:center;gap:4px;margin-left:14px;}
.nav-menu a{
  display:inline-block;padding:9px 14px;border-radius:10px;
  font-size:15px;color:var(--ink-soft);font-weight:500;white-space:nowrap;
  transition:background .2s ease,color .2s ease;
}
.nav-menu a:hover{background:#e8ece6;color:var(--brand);}
.nav-menu a.active{background:var(--brand);color:#fff;}
.nav-cta{display:flex;align-items:center;gap:10px;margin-left:auto;flex-shrink:0;}
.nav-toggle{
  display:none;margin-left:auto;background:#fff;border:1px solid var(--line);
  border-radius:10px;width:42px;height:40px;padding:0;cursor:pointer;
  flex-direction:column;justify-content:center;align-items:center;gap:4px;
}
.nav-toggle span{display:block;width:18px;height:2px;background:var(--ink-soft);border-radius:2px;}
/* ===== 按钮 ===== */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:12px 22px;border-radius:12px;font-size:15px;font-weight:600;
  border:1px solid transparent;cursor:pointer;white-space:nowrap;
  transition:transform .18s ease,box-shadow .18s ease,background .18s ease,color .18s ease,border-color .18s ease;
}
.btn-primary{background:linear-gradient(145deg,var(--brand-2),var(--brand));color:#fff;box-shadow:0 10px 24px rgba(15,77,63,.26);}
.btn-primary:hover{color:#fff;transform:translateY(-2px);box-shadow:0 16px 30px rgba(15,77,63,.32);}
.btn-primary:active{transform:translateY(0);box-shadow:0 6px 14px rgba(15,77,63,.24);}
.btn-ghost{background:#fff;color:var(--ink-soft);border-color:var(--line);box-shadow:var(--shadow-sm);}
.btn-ghost:hover{color:var(--brand);border-color:#c9d5cd;background:#fbfcfa;transform:translateY(-2px);}
.btn-gold{background:linear-gradient(145deg,#d8b571,#bd8f45);color:#26180a;box-shadow:0 10px 24px rgba(189,143,69,.3);}
.btn-gold:hover{color:#1c1206;transform:translateY(-2px);box-shadow:0 16px 30px rgba(189,143,69,.36);}
.btn-sm{padding:9px 16px;font-size:14px;border-radius:10px;}
.btn-block{width:100%;}
/* ===== 板块 ===== */
.section{padding:72px 0;}
.section--alt{background:var(--bg-alt);}
.section--dark{background:linear-gradient(160deg,#0d2a23,#0a1f1a 70%);color:#e9efec;}
.section--dark h2,.section--dark h3{color:#fff;}
.section--dark .section-desc{color:#b7c6bf;}
.section-head{max-width:820px;margin-bottom:34px;}
.section-head.center{margin-left:auto;margin-right:auto;text-align:center;}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;font-weight:600;letter-spacing:1.2px;
  color:var(--brand-2);background:#e6efe9;border:1px solid #d3e3da;
  padding:6px 14px;border-radius:999px;margin-bottom:16px;
}
.section--dark .eyebrow{background:rgba(195,154,82,.14);border-color:rgba(195,154,82,.32);color:#e3c896;}
.section-title{font-size:28px;margin-bottom:12px;}
.section-desc{color:var(--muted);font-size:16px;line-height:1.85;}
/* ===== 分类页首屏 ===== */
.cat-hero{
  padding:40px 0 62px;
  background:
    radial-gradient(1000px 420px at 86% -14%,#e3ece5 0%,rgba(247,246,242,0) 62%),
    linear-gradient(180deg,#f7f6f2 0%,#f2f3ee 100%);
  border-bottom:1px solid var(--line);
}
.cat-hero-grid{display:grid;grid-template-columns:minmax(0,1.1fr) minmax(0,.9fr);gap:42px;align-items:start;}
.cat-hero-main{min-width:0;}
.breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--muted);margin-bottom:18px;}
.breadcrumb a{color:var(--muted);}
.breadcrumb a:hover{color:var(--brand);}
.breadcrumb .sep{color:#b9c2bc;}
.breadcrumb .cur{color:var(--brand);font-weight:600;}
.cat-hero h1{font-size:32px;line-height:1.38;margin-bottom:16px;}
.cat-hero h1 em{font-style:normal;color:var(--brand);}
.cat-lead{font-size:16px;color:#41504a;line-height:1.9;margin-bottom:24px;}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-bottom:22px;}
.chip-row{display:flex;flex-wrap:wrap;gap:9px;}
.chip{
  display:inline-flex;align-items:center;gap:7px;
  background:#fff;border:1px solid var(--line);border-radius:999px;
  padding:7px 14px;font-size:13.5px;color:var(--ink-soft);box-shadow:var(--shadow-sm);
}
.chip i{color:var(--brand-2);font-size:12px;}
.panel{background:var(--card);border:1px solid var(--line);border-radius:var(--radius-lg);box-shadow:var(--shadow);overflow:hidden;min-width:0;}
.panel-head{
  padding:16px 20px;background:linear-gradient(145deg,#124e40,#0a3128);
  color:#eaf2ee;display:flex;justify-content:space-between;align-items:center;gap:10px;
}
.panel-head strong{font-size:15px;letter-spacing:.4px;}
.panel-head .panel-tag{font-size:11.5px;padding:3px 10px;border-radius:999px;background:rgba(195,154,82,.16);color:#e8cb96;border:1px solid rgba(195,154,82,.35);white-space:nowrap;}
.panel-body{padding:10px 20px 18px;}
.panel-step{display:flex;gap:12px;padding:14px 0;border-bottom:1px dashed var(--line);}
.panel-step:last-child{border-bottom:0;padding-bottom:4px;}
.step-no{
  width:28px;height:28px;border-radius:9px;background:var(--gold-soft);color:#7a5a22;
  font-weight:700;font-size:13px;display:flex;align-items:center;justify-content:center;flex-shrink:0;
}
.step-t{font-size:14.5px;font-weight:600;color:var(--ink);margin-bottom:3px;}
.step-d{font-size:13px;color:var(--muted);line-height:1.7;}
.panel-foot{padding:12px 20px 18px;font-size:12.5px;color:var(--muted);border-top:1px solid var(--line);line-height:1.7;}
/* ===== 卡片网格 ===== */
.card-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:20px;}
.card-grid--2{grid-template-columns:repeat(2,minmax(0,1fr));}
.site-card{
  background:var(--card);border:1px solid var(--line);border-radius:var(--radius);
  padding:24px 22px;box-shadow:var(--shadow-sm);min-width:0;
  transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.site-card:hover{transform:translateY(-3px);box-shadow:var(--shadow);border-color:#cfdcd4;}
.card-icon{
  width:44px;height:44px;border-radius:12px;display:flex;align-items:center;justify-content:center;
  background:#e9f1ec;color:var(--brand);font-size:18px;margin-bottom:14px;
}
.site-card h3{font-size:17px;margin-bottom:8px;}
.site-card p{font-size:14.5px;color:var(--muted);line-height:1.8;}
/* ===== 流程步骤 ===== */
.flow-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:18px;}
.flow-item{
  position:relative;background:var(--card);border:1px solid var(--line);border-radius:var(--radius);
  padding:26px 20px 22px;box-shadow:var(--shadow-sm);min-width:0;
  transition:transform .2s ease,box-shadow .2s ease;
}
.flow-item:hover{transform:translateY(-3px);box-shadow:var(--shadow);}
.flow-index{
  position:absolute;top:-14px;left:20px;width:34px;height:34px;border-radius:11px;
  background:linear-gradient(145deg,var(--brand-2),var(--brand-3));color:#f4e7cd;
  font-size:14px;font-weight:700;display:flex;align-items:center;justify-content:center;
  box-shadow:0 8px 18px rgba(15,77,63,.26);
}
.flow-item h3{font-size:16.5px;margin:12px 0 8px;}
.flow-item p{font-size:14px;color:var(--muted);line-height:1.8;}
/* ===== 两栏对照 ===== */
.split{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:26px;align-items:start;}
.split-col{min-width:0;}
.plain-list li{
  display:flex;gap:11px;padding:14px 0;border-bottom:1px dashed var(--line);
  font-size:14.8px;color:var(--ink-soft);line-height:1.8;
}
.plain-list li:last-child{border-bottom:0;}
.plain-list i{color:var(--brand-2);margin-top:5px;font-size:13px;}
.plain-list b{color:var(--ink);}
.metric-box{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow-sm);padding:8px 24px 20px;}
.metric-row{padding:16px 0;border-bottom:1px dashed var(--line);}
.metric-row:last-child{border-bottom:0;padding-bottom:6px;}
.metric-name{display:flex;align-items:center;gap:8px;font-size:15.5px;font-weight:600;color:var(--ink);margin-bottom:6px;}
.metric-name span{
  width:6px;height:6px;border-radius:50%;background:var(--gold);display:inline-block;flex-shrink:0;
}
.metric-desc{font-size:14px;color:var(--muted);line-height:1.8;}
/* ===== 深色区块 ===== */
.dark-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:18px;}
.dark-card{
  background:rgba(255,255,255,.055);border:1px solid rgba(195,154,82,.22);
  border-radius:var(--radius);padding:22px;min-width:0;
  transition:background .2s ease,border-color .2s ease,transform .2s ease;
}
.dark-card:hover{background:rgba(255,255,255,.09);border-color:rgba(195,154,82,.4);transform:translateY(-2px);}
.dark-card h3{font-size:16.5px;margin-bottom:8px;display:flex;align-items:center;gap:9px;}
.dark-card h3 i{color:#e2c48d;font-size:15px;}
.dark-card p{font-size:14.3px;color:#bfd0c8;line-height:1.85;}
/* ===== 原因列表 ===== */
.reason-list{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:14px;}
.reason-item{
  display:flex;gap:12px;background:var(--card);border:1px solid var(--line);
  border-radius:var(--radius-sm);padding:16px 18px;box-shadow:var(--shadow-sm);min-width:0;
}
.reason-item i{color:#b5743f;margin-top:4px;font-size:14px;}
.reason-item p{font-size:14.3px;color:var(--ink-soft);line-height:1.8;}
/* ===== FAQ ===== */
.faq-wrap{max-width:880px;margin:0 auto;}
.faq-item{
  background:var(--card);border:1px solid var(--line);border-radius:var(--radius-sm);
  margin-bottom:12px;box-shadow:var(--shadow-sm);overflow:hidden;
}
.faq-item summary{
  cursor:pointer;list-style:none;padding:17px 22px;font-size:15.5px;font-weight:600;color:var(--ink);
  display:flex;justify-content:space-between;align-items:center;gap:14px;
  transition:background .2s ease,color .2s ease;
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary:hover{background:#f6f8f4;color:var(--brand);}
.faq-item summary::after{
  content:"\f078";font-family:"Font Awesome 6 Free";font-weight:900;font-size:12px;color:var(--brand-2);
  transition:transform .2s ease;flex-shrink:0;
}
.faq-item[open] summary::after{transform:rotate(180deg);}
.faq-answer{padding:0 22px 18px;font-size:14.6px;color:var(--muted);line-height:1.85;}
/* ===== 资讯列表 ===== */
.news-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:18px;}
.news-card{
  display:flex;flex-direction:column;gap:8px;background:var(--card);border:1px solid var(--line);
  border-radius:var(--radius);padding:22px 20px;box-shadow:var(--shadow-sm);min-width:0;
  transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.news-card:hover{transform:translateY(-3px);box-shadow:var(--shadow);border-color:#cfdcd4;}
.news-card h3{font-size:16px;color:var(--ink);line-height:1.55;}
.news-card p{font-size:13.8px;color:var(--muted);line-height:1.8;}
.news-tag{
  display:inline-block;font-size:12px;color:var(--brand);background:#e9f1ec;
  border:1px solid #d5e4db;border-radius:999px;padding:3px 11px;align-self:flex-start;
}
.news-empty{
  background:var(--card);border:1px dashed var(--line);border-radius:var(--radius);
  padding:28px;text-align:center;color:var(--muted);font-size:14.5px;
}
/* ===== 下载区 ===== */
.dl-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:18px;}
.dl-card{
  background:var(--card);border:1px solid var(--line);border-radius:var(--radius-lg);
  padding:26px 22px;box-shadow:var(--shadow-sm);text-align:center;min-width:0;
  transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.dl-card:hover{transform:translateY(-4px);box-shadow:var(--shadow);border-color:#cfdcd4;}
.dl-icon{
  width:56px;height:56px;border-radius:16px;margin:0 auto 14px;
  display:flex;align-items:center;justify-content:center;font-size:22px;
  background:linear-gradient(145deg,#eaf2ec,#dbe8e0);color:var(--brand);
}
.dl-card h3{font-size:16.5px;margin-bottom:6px;}
.dl-card p{font-size:13.6px;color:var(--muted);margin-bottom:18px;line-height:1.75;}
.dl-note{margin-top:18px;font-size:13px;color:var(--muted);text-align:center;line-height:1.8;}
/* ===== 页脚 ===== */
.site-footer{background:#0b1f19;color:#c6d3cd;padding:56px 0 26px;margin-top:0;}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:32px;padding-bottom:32px;border-bottom:1px solid rgba(255,255,255,.1);}
.footer-brand .brand-name{color:#fff;}
.footer-brand .brand-sub{color:#8fa79d;}
.footer-brand p{font-size:13.6px;color:#9db1a8;line-height:1.85;margin-top:14px;max-width:400px;}
.footer-col h4{font-size:14.5px;color:#fff;margin-bottom:14px;letter-spacing:.6px;}
.footer-col ul li{margin-bottom:9px;}
.footer-col ul li a{font-size:13.6px;color:#9db1a8;}
.footer-col ul li a:hover{color:#e2c48d;}
.footer-risk{
  margin-top:22px;font-size:12.8px;color:#8ea49b;line-height:1.85;
  background:rgba(255,255,255,.045);border:1px solid rgba(255,255,255,.08);
  border-radius:var(--radius-sm);padding:14px 18px;
}
.footer-bottom{
  display:flex;justify-content:space-between;align-items:center;flex-wrap:wrap;gap:10px;
  margin-top:20px;font-size:12.8px;color:#7f968c;
}
/* ===== 响应式 ===== */
@media (max-width:1024px){
  .nav-wrap{flex-wrap:wrap;gap:12px;padding-top:12px;padding-bottom:12px;}
  .nav-toggle{display:flex;}
  .nav-menu,.nav-cta{display:none;}
  .site-header.nav-open .nav-menu{
    display:flex;flex-direction:column;align-items:stretch;gap:4px;
    width:100%;order:4;margin:0;padding:10px 0 6px;border-top:1px solid var(--line);
  }
  .site-header.nav-open .nav-menu a{padding:11px 12px;font-size:15px;}
  .site-header.nav-open .nav-cta{
    display:flex;flex-wrap:wrap;gap:10px;width:100%;order:5;margin:0 0 4px;
  }
  .site-header.nav-open .nav-cta .btn{flex:1 1 160px;}
  .cat-hero-grid{grid-template-columns:minmax(0,1fr);gap:30px;}
  .cat-hero h1{font-size:28px;}
  .card-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
  .flow-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:22px;}
  .news-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
  .dl-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
  .footer-grid{grid-template-columns:1.4fr 1fr 1fr;gap:26px;}
}
@media (max-width:768px){
  .section{padding:54px 0;}
  .cat-hero{padding:30px 0 48px;}
  .cat-hero h1{font-size:25px;}
  .section-title{font-size:23px;}
  .split,.dark-grid,.reason-list,.card-grid,.card-grid--2,.news-grid{grid-template-columns:minmax(0,1fr);}
  .dl-grid{grid-template-columns:minmax(0,1fr);}
  .footer-grid{grid-template-columns:1fr;gap:24px;}
  .hero-actions .btn{flex:1 1 100%;}
}
@media (max-width:520px){
  .container{padding:0 16px;}
  .brand-name{font-size:17px;}
  .brand-sub{font-size:10.5px;letter-spacing:1px;}
  .cat-hero h1{font-size:22px;}
  .cat-lead{font-size:15px;}
  .section-title{font-size:21px;}
  .site-card,.news-card,.dark-card,.dl-card{padding:20px 16px;}
  .faq-item summary{padding:14px 16px;font-size:14.6px;}
  .faq-answer{padding:0 16px 16px;font-size:14px;}
  .flow-grid{grid-template-columns:minmax(0,1fr);}
  .footer-bottom{flex-direction:column;align-items:flex-start;}
}