/* roulang page: index */
:root{
  --ink:#0d1b2e;
  --ink-2:#3b4a60;
  --ink-3:#6b7a90;
  --blue:#1b57d6;
  --blue-d:#0e2f73;
  --blue-l:#edf3ff;
  --line:#e2e9f4;
  --bg:#f6f9fe;
  --white:#ffffff;
  --r:16px;
  --r-lg:22px;
  --shadow-sm:0 8px 20px -16px rgba(15,42,90,.45);
  --shadow:0 22px 50px -30px rgba(15,42,90,.45);
}
*,*::before,*::after{box-sizing:border-box;}
body{margin:0;font-family:"PingFang SC","Microsoft YaHei","Hiragino Sans GB",system-ui,-apple-system,"Segoe UI",sans-serif;color:var(--ink);background:var(--bg);line-height:1.7;-webkit-font-smoothing:antialiased;}
img{max-width:100%;height:auto;display:block;}
a{color:inherit;text-decoration:none;}
h1,h2,h3,h4,p{margin:0;}
ul{margin:0;padding:0;list-style:none;}
button{font-family:inherit;}
:focus-visible{outline:2px solid var(--blue);outline-offset:3px;border-radius:6px;}
.wrap{max-width:1180px;margin:0 auto;padding:0 20px;}

/* header */
.site-header{position:sticky;top:0;z-index:60;background:rgba(255,255,255,.94);backdrop-filter:blur(10px);border-bottom:1px solid var(--line);}
.header-inner{display:flex;align-items:center;gap:20px;min-height:72px;flex-wrap:wrap;padding:10px 0;}
.brand{display:flex;align-items:center;gap:10px;min-width:0;}
.brand-mark{flex:0 0 auto;width:40px;height:40px;border-radius:12px;background:linear-gradient(140deg,#1b57d6,#0e2f73);color:#fff;display:grid;place-items:center;font-weight:800;font-size:17px;letter-spacing:0;}
.brand-text strong{display:block;font-size:17px;font-weight:800;letter-spacing:.5px;line-height:1.3;}
.brand-text small{display:block;font-size:11px;color:var(--ink-3);letter-spacing:1.6px;line-height:1.4;}
.main-nav{display:flex;gap:6px;margin-left:auto;flex-wrap:wrap;}
.main-nav a{padding:8px 14px;border-radius:10px;font-size:15px;color:var(--ink-2);transition:background .2s,color .2s;white-space:nowrap;}
.main-nav a:hover{background:var(--blue-l);color:var(--blue-d);}
.main-nav a.active{color:#fff;background:var(--blue);}
.header-cta{margin-left:6px;}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;border-radius:12px;padding:12px 22px;font-size:15px;font-weight:600;border:1px solid transparent;cursor:pointer;transition:transform .18s,box-shadow .18s,background .18s,border-color .18s,color .18s;}
.btn-primary{background:var(--blue);color:#fff;box-shadow:0 14px 26px -18px rgba(27,87,214,.95);}
.btn-primary:hover{background:var(--blue-d);transform:translateY(-2px);}
.btn-primary:active{transform:translateY(0);}
.btn-ghost{background:#fff;color:var(--blue-d);border-color:#cddcf7;}
.btn-ghost:hover{border-color:var(--blue);background:var(--blue-l);}
.btn-sm{padding:9px 16px;font-size:14px;border-radius:10px;}

/* pill nav */
.pillbar{background:#fff;border-bottom:1px solid var(--line);}
.pillbar-inner{display:flex;gap:10px;overflow-x:auto;padding:12px 0;scrollbar-width:none;}
.pillbar-inner::-webkit-scrollbar{display:none;}
.pill{flex:0 0 auto;padding:8px 16px;border-radius:999px;background:#f2f6fd;border:1px solid var(--line);font-size:14px;color:var(--ink-2);transition:background .2s,color .2s,border-color .2s;white-space:nowrap;}
.pill:hover{background:var(--blue-l);color:var(--blue-d);border-color:#c9daf8;}
.pill.is-active{background:var(--blue-d);color:#fff;border-color:var(--blue-d);}

/* hero */
.hero{padding:52px 0 60px;background:radial-gradient(1100px 420px at 50% -160px,#e7efff 0%,rgba(246,249,254,0) 72%),linear-gradient(180deg,#f9fbff 0%,#f6f9fe 100%);}
.hero-head{max-width:860px;margin:0 auto;text-align:center;}
.eyebrow{display:inline-flex;align-items:center;gap:8px;padding:6px 14px;border-radius:999px;background:#fff;border:1px solid #d8e4f8;color:var(--blue-d);font-size:13px;font-weight:600;letter-spacing:.6px;}
.hero h1{font-size:clamp(26px,3.3vw,38px);line-height:1.4;margin:18px 0 16px;font-weight:800;letter-spacing:-.4px;}
.hero h1 em{font-style:normal;color:var(--blue);}
.hero-lead{font-size:15.5px;color:var(--ink-2);line-height:1.95;text-align:left;}
@media(min-width:768px){.hero-lead{text-align:center;}}
.hero-stage{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1.55fr) minmax(0,1fr);gap:24px;align-items:center;margin-top:42px;}
.hero-side{display:flex;flex-direction:column;gap:14px;min-width:0;}
.value-item{display:flex;gap:12px;background:#fff;border:1px solid var(--line);border-radius:14px;padding:16px;box-shadow:var(--shadow-sm);min-width:0;}
.vi-icon{flex:0 0 auto;width:34px;height:34px;border-radius:10px;background:var(--blue-l);color:var(--blue-d);display:grid;place-items:center;font-weight:800;font-size:14px;}
.value-item strong{display:block;font-size:14.5px;font-weight:700;line-height:1.5;}
.value-item p{font-size:13px;color:var(--ink-3);line-height:1.7;margin-top:3px;}
.side-dl{display:flex;flex-direction:column;gap:8px;margin-top:4px;}
.side-dl a{display:flex;align-items:center;justify-content:space-between;gap:10px;padding:11px 14px;border-radius:11px;background:var(--blue);color:#fff;font-size:13.5px;font-weight:600;box-shadow:0 14px 24px -20px rgba(27,87,214,.95);transition:background .2s,transform .2s;}
.side-dl a:hover{background:var(--blue-d);transform:translateX(2px);}
.side-dl a span{opacity:.82;font-weight:400;font-size:12px;}
.stage{background:#fff;border:1px solid var(--line);border-radius:18px;overflow:hidden;min-width:0;box-shadow:0 40px 80px -56px rgba(15,42,90,.75),0 10px 24px -20px rgba(15,42,90,.45);}
.stage-top{display:flex;align-items:center;gap:12px;padding:12px 16px;border-bottom:1px solid var(--line);background:#fbfdff;}
.stage-dots{display:flex;gap:6px;}
.stage-dots i{width:9px;height:9px;border-radius:50%;background:#d8e2f2;display:block;}
.stage-title{font-size:12.5px;color:var(--ink-3);}
.stage-body{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:12px;padding:16px;background:#f7faff;}
.panel{background:#fff;border:1px solid var(--line);border-radius:12px;padding:14px;min-width:0;}
.panel-head{font-size:13px;font-weight:700;color:var(--blue-d);padding-bottom:8px;border-bottom:1px dashed var(--line);margin-bottom:8px;}
.panel-row{display:flex;justify-content:space-between;gap:10px;font-size:12.5px;color:var(--ink-3);padding:5px 0;min-width:0;}
.panel-row strong{color:var(--ink);font-weight:600;white-space:nowrap;}
.stage-foot{display:flex;align-items:center;gap:8px;padding:10px 16px;font-size:12px;color:var(--ink-3);border-top:1px solid var(--line);background:#fbfdff;}
.dot-live{width:7px;height:7px;border-radius:50%;background:#2fa56a;display:inline-block;}

/* sections */
.section{padding:62px 0;}
.section--alt{background:#fff;border-top:1px solid var(--line);border-bottom:1px solid var(--line);}
.section-head{max-width:780px;margin-bottom:32px;}
.section-head.center{margin-left:auto;margin-right:auto;text-align:center;}
.section-tag{display:inline-block;font-size:12.5px;font-weight:700;color:var(--blue);letter-spacing:1.8px;}
.section-title{font-size:clamp(22px,2.4vw,30px);line-height:1.45;margin:10px 0 12px;font-weight:800;letter-spacing:-.3px;}
.section-desc{color:var(--ink-2);font-size:15px;line-height:1.9;}

.grid-2{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:22px;}
.grid-3{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:22px;}
.grid-4{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:18px;}

.card{background:#fff;border:1px solid var(--line);border-radius:var(--r);padding:26px;box-shadow:var(--shadow-sm);min-width:0;transition:transform .2s,box-shadow .2s,border-color .2s;}
.card:hover{transform:translateY(-3px);box-shadow:var(--shadow);border-color:#cfe0fb;}
.card-icon{width:44px;height:44px;border-radius:12px;background:var(--blue-l);color:var(--blue-d);display:grid;place-items:center;font-weight:800;font-size:15px;margin-bottom:14px;}
.card-title{font-size:17px;font-weight:700;margin-bottom:10px;line-height:1.5;}
.card-text{font-size:14.5px;color:var(--ink-2);line-height:1.85;}

.steps{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:22px;}
.step{background:#fff;border:1px solid var(--line);border-radius:var(--r);padding:28px 24px 24px;box-shadow:var(--shadow-sm);min-width:0;transition:transform .2s,box-shadow .2s;}
.step:hover{transform:translateY(-3px);box-shadow:var(--shadow);}
.step-no{width:38px;height:38px;border-radius:11px;background:var(--blue-d);color:#fff;display:grid;place-items:center;font-weight:800;margin-bottom:16px;}
.step h3{font-size:16.5px;font-weight:700;margin-bottom:10px;}
.step p{font-size:14.5px;color:var(--ink-2);line-height:1.85;}

.plan-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:22px;}
.plan-card{background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);padding:28px;box-shadow:var(--shadow-sm);display:flex;flex-direction:column;min-width:0;transition:transform .2s,box-shadow .2s,border-color .2s;}
.plan-card:hover{transform:translateY(-4px);box-shadow:var(--shadow);}
.plan-card--hi{border-color:#b9cff6;box-shadow:0 26px 52px -34px rgba(27,87,214,.6);}
.plan-badge{align-self:flex-start;font-size:12px;font-weight:700;padding:4px 11px;border-radius:999px;background:var(--blue-l);color:var(--blue-d);}
.plan-card h3{font-size:19px;font-weight:800;margin:14px 0 8px;}
.plan-card .plan-sub{font-size:13.5px;color:var(--ink-3);line-height:1.8;}
.plan-list{margin-top:16px;}
.plan-list li{position:relative;padding-left:20px;font-size:14.5px;color:var(--ink-2);line-height:1.8;margin-top:10px;min-width:0;}
.plan-list li::before{content:"";position:absolute;left:0;top:10px;width:7px;height:7px;border-radius:50%;background:var(--blue);}

.stat-strip{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:16px;}
.stat-item{background:#fff;border:1px solid var(--line);border-radius:14px;padding:22px 18px;text-align:center;box-shadow:var(--shadow-sm);min-width:0;transition:border-color .2s,transform .2s;}
.stat-item:hover{border-color:#c9daf8;transform:translateY(-2px);}
.stat-item strong{display:block;font-size:16px;font-weight:800;color:var(--blue-d);margin-bottom:6px;}
.stat-item span{font-size:13.5px;color:var(--ink-3);line-height:1.7;}

/* news */
.news-layout{display:grid;grid-template-columns:minmax(0,1.7fr) minmax(0,1fr);gap:26px;align-items:start;}
.news-item{display:block;padding:20px 22px;border:1px solid var(--line);border-radius:14px;background:#fff;margin-bottom:14px;box-shadow:var(--shadow-sm);transition:border-color .2s,transform .2s,box-shadow .2s;min-width:0;}
.news-item:hover{border-color:#c6d9f8;transform:translateX(3px);box-shadow:var(--shadow);}
.news-item h3{font-size:16.5px;font-weight:700;line-height:1.6;}
.news-item p{font-size:14px;color:var(--ink-2);line-height:1.8;margin-top:8px;}
.news-meta{display:flex;flex-wrap:wrap;gap:14px;font-size:12.5px;color:var(--ink-3);margin-top:10px;}
.news-card-list{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:20px;}
.news-card{display:flex;flex-direction:column;background:#fff;border:1px solid var(--line);border-radius:var(--r);padding:22px;box-shadow:var(--shadow-sm);min-width:0;transition:transform .2s,box-shadow .2s,border-color .2s;}
.news-card:hover{transform:translateY(-3px);box-shadow:var(--shadow);border-color:#cfe0fb;}
.news-card h3{font-size:16px;font-weight:700;line-height:1.6;}
.news-card p{font-size:14px;color:var(--ink-2);line-height:1.8;margin-top:8px;flex:1;}
.side-card{background:#fff;border:1px solid var(--line);border-radius:var(--r);padding:24px;box-shadow:var(--shadow-sm);min-width:0;}
.side-card h3{font-size:16.5px;font-weight:800;margin-bottom:6px;}
.side-card .side-note{font-size:13px;color:var(--ink-3);margin-bottom:12px;}
.rank-item{display:flex;gap:12px;padding:12px 0;border-bottom:1px dashed var(--line);min-width:0;transition:color .2s;}
.rank-item:last-child{border-bottom:0;}
.rank-item:hover{color:var(--blue-d);}
.rank-no{flex:0 0 auto;width:22px;height:22px;border-radius:7px;background:var(--blue-l);color:var(--blue-d);font-size:12px;font-weight:800;display:grid;place-items:center;}
.rank-item p{font-size:14px;line-height:1.6;min-width:0;}
.empty{font-size:14px;color:var(--ink-3);padding:18px;border:1px dashed var(--line);border-radius:12px;background:#fff;}

.tag-strip{display:flex;flex-wrap:wrap;gap:12px;}
.tag{padding:10px 18px;border-radius:999px;background:#fff;border:1px solid var(--line);font-size:14px;color:var(--ink-2);box-shadow:var(--shadow-sm);transition:border-color .2s,color .2s,transform .2s;}
.tag:hover{border-color:#c9daf8;color:var(--blue-d);transform:translateY(-2px);}

.pain-list{background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);padding:10px 26px;box-shadow:var(--shadow-sm);}
.pain-item{display:grid;grid-template-columns:48px minmax(0,1fr);gap:16px;padding:22px 0;border-bottom:1px solid var(--line);}
.pain-item:last-child{border-bottom:0;}
.pain-no{width:44px;height:44px;border-radius:12px;background:var(--blue-l);color:var(--blue-d);display:grid;place-items:center;font-weight:800;}
.pain-item h3{font-size:16px;font-weight:700;margin-bottom:6px;}
.pain-item p{font-size:14.5px;color:var(--ink-2);line-height:1.8;}

.faq-item{background:#fff;border:1px solid var(--line);border-radius:14px;padding:0 22px;margin-bottom:12px;box-shadow:var(--shadow-sm);transition:border-color .2s;}
.faq-item:hover{border-color:#cfe0fb;}
.faq-item summary{cursor:pointer;list-style:none;padding:18px 30px 18px 0;font-weight:700;font-size:16px;position:relative;line-height:1.6;}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary::after{content:"+";position:absolute;right:0;top:16px;font-size:20px;color:var(--blue);font-weight:400;}
.faq-item[open] summary::after{content:"−";}
.faq-item p{padding-bottom:20px;font-size:14.5px;color:var(--ink-2);line-height:1.9;}

.dl-card{background:linear-gradient(135deg,#0e2f73 0%,#1b57d6 100%);color:#fff;border-radius:var(--r-lg);padding:46px;box-shadow:0 34px 70px -46px rgba(14,47,115,.9);}
.dl-card h2{font-size:clamp(22px,2.4vw,30px);font-weight:800;line-height:1.4;color:#fff;}
.dl-card p{font-size:15px;line-height:1.9;color:#d7e4ff;margin-top:12px;max-width:720px;}
.dl-btns{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:16px;margin-top:28px;}
.dl-btn{display:flex;flex-direction:column;gap:4px;padding:18px 20px;border-radius:14px;background:rgba(255,255,255,.13);border:1px solid rgba(255,255,255,.28);transition:background .2s,color .2s,transform .2s;min-width:0;}
.dl-btn strong{font-size:16px;font-weight:700;}
.dl-btn span{font-size:12.5px;opacity:.85;line-height:1.6;}
.dl-btn:hover{background:#fff;color:var(--blue-d);transform:translateY(-3px);}
.dl-note{margin-top:18px;font-size:13px;color:#c2d4f6;line-height:1.8;}

.cta-band{background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);padding:40px;display:flex;gap:26px;align-items:center;justify-content:space-between;flex-wrap:wrap;box-shadow:var(--shadow-sm);}
.cta-band h2{font-size:clamp(20px,2.2vw,26px);font-weight:800;line-height:1.45;}
.cta-band p{font-size:14.5px;color:var(--ink-2);line-height:1.85;margin-top:10px;max-width:620px;}
.cta-actions{display:flex;gap:12px;flex-wrap:wrap;}

/* footer */
.site-footer{background:#0c1c33;color:#c6d3e6;padding:56px 0 26px;margin-top:22px;}
.footer-grid{display:grid;grid-template-columns:minmax(0,1.7fr) minmax(0,1fr) minmax(0,1fr);gap:34px;}
.footer-brand strong{display:block;color:#fff;font-size:18px;font-weight:800;margin-bottom:10px;}
.footer-brand p{font-size:14px;color:#9db0cc;line-height:1.9;max-width:440px;}
.footer-col h4{color:#fff;font-size:15px;font-weight:700;margin-bottom:14px;}
.footer-col a{display:block;color:#a9bad3;font-size:14px;padding:5px 0;transition:color .2s,transform .2s;}
.footer-col a:hover{color:#fff;transform:translateX(2px);}
.footer-risk{margin-top:34px;padding-top:20px;border-top:1px solid rgba(255,255,255,.12);font-size:13px;color:#8fa3bf;line-height:1.95;}
.footer-bottom{margin-top:16px;display:flex;justify-content:space-between;gap:14px;flex-wrap:wrap;font-size:13px;color:#7f92ad;}

@media(max-width:1024px){
  .hero-stage{grid-template-columns:1fr;}
  .hero-side--left{order:2;}
  .stage{order:1;}
  .hero-side--right{order:3;}
  .grid-4,.stat-strip{grid-template-columns:repeat(2,minmax(0,1fr));}
  .news-layout{grid-template-columns:1fr;}
  .news-card-list{grid-template-columns:repeat(2,minmax(0,1fr));}
  .footer-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
}
@media(max-width:768px){
  .grid-2,.grid-3,.grid-4,.steps,.plan-grid,.stat-strip,.dl-btns,.news-card-list{grid-template-columns:1fr;}
  .section{padding:46px 0;}
  .main-nav{order:3;width:100%;margin-left:0;gap:4px;}
  .main-nav a{padding:7px 10px;font-size:14px;}
  .header-cta{order:2;margin-left:auto;}
  .brand-text small{letter-spacing:1px;}
  .dl-card{padding:28px;}
  .cta-band{padding:26px;}
  .pain-list{padding:6px 18px;}
  .footer-grid{grid-template-columns:1fr;}
}
@media(max-width:520px){
  .stage-body{grid-template-columns:1fr;}
  .hero{padding:36px 0 44px;}
  .hero h1{font-size:24px;}
  .brand-text strong{font-size:16px;}
  .card{padding:20px;}
  .step{padding:22px 18px;}
  .news-item{padding:16px;}
}

/* roulang page: article */
:root{
  --ink:#0d1b2e;
  --ink-2:#3b4a60;
  --ink-3:#6b7a90;
  --blue:#1b57d6;
  --blue-d:#0e2f73;
  --blue-l:#edf3ff;
  --line:#e2e9f4;
  --bg:#f6f9fe;
  --white:#ffffff;
  --r:16px;
  --r-lg:22px;
  --shadow-sm:0 8px 20px -16px rgba(15,42,90,.45);
  --shadow:0 22px 50px -30px rgba(15,42,90,.45);
}
*,*::before,*::after{box-sizing:border-box;}
body{margin:0;font-family:"PingFang SC","Microsoft YaHei","Hiragino Sans GB",system-ui,-apple-system,"Segoe UI",sans-serif;color:var(--ink);background:var(--bg);line-height:1.7;-webkit-font-smoothing:antialiased;}
img{max-width:100%;height:auto;display:block;}
a{color:inherit;text-decoration:none;}
button{font-family:inherit;}
p{margin:0;}
h1,h2,h3,h4{margin:0;font-weight:800;letter-spacing:-.2px;}
ul,ol{margin:0;padding-left:1.25em;}
.wrap{width:100%;max-width:1180px;margin:0 auto;padding:0 20px;}
/* header */
.site-header{position:sticky;top:0;z-index:60;background:rgba(255,255,255,.94);backdrop-filter:blur(10px);border-bottom:1px solid var(--line);}
.header-inner{display:flex;align-items:center;gap:20px;min-height:72px;flex-wrap:wrap;padding-top:10px;padding-bottom:10px;}
.brand{display:flex;align-items:center;gap:10px;min-width:0;}
.brand-mark{flex:0 0 auto;width:40px;height:40px;border-radius:12px;background:linear-gradient(140deg,#1b57d6,#0e2f73);color:#fff;display:grid;place-items:center;font-weight:800;font-size:17px;}
.brand-text strong{display:block;font-size:17px;font-weight:800;letter-spacing:.5px;line-height:1.3;}
.brand-text small{display:block;font-size:11px;color:var(--ink-3);letter-spacing:1.6px;line-height:1.4;}
.main-nav{display:flex;gap:6px;margin-left:auto;flex-wrap:wrap;}
.main-nav a{padding:8px 14px;border-radius:10px;font-size:15px;color:var(--ink-2);transition:background .2s,color .2s;white-space:nowrap;}
.main-nav a:hover{background:var(--blue-l);color:var(--blue-d);}
.main-nav a.active{color:#fff;background:var(--blue);}
.header-cta{margin-left:6px;}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;border-radius:12px;padding:12px 22px;font-size:15px;font-weight:600;border:1px solid transparent;cursor:pointer;transition:transform .18s,box-shadow .18s,background .18s,border-color .18s,color .18s;}
.btn-primary{background:var(--blue);color:#fff;box-shadow:0 14px 26px -18px rgba(27,87,214,.95);}
.btn-primary:hover{background:var(--blue-d);transform:translateY(-2px);}
.btn-primary:active{transform:translateY(0);}
.btn-ghost{background:#fff;color:var(--blue-d);border-color:#cddcf7;}
.btn-ghost:hover{border-color:var(--blue);background:var(--blue-l);}
.btn-sm{padding:9px 16px;font-size:14px;border-radius:10px;}
a:focus-visible,button:focus-visible{outline:2px solid var(--blue);outline-offset:3px;}
/* pill nav */
.pillbar{background:#fff;border-bottom:1px solid var(--line);}
.pillbar-inner{display:flex;gap:10px;overflow-x:auto;padding:12px 0;scrollbar-width:none;}
.pillbar-inner::-webkit-scrollbar{display:none;}
.pill{flex:0 0 auto;padding:8px 16px;border-radius:999px;background:#f2f6fd;border:1px solid var(--line);font-size:14px;color:var(--ink-2);transition:background .2s,color .2s,border-color .2s;white-space:nowrap;}
.pill:hover{background:var(--blue-l);color:var(--blue-d);border-color:#c9daf8;}
.pill.is-active{background:var(--blue-d);color:#fff;border-color:var(--blue-d);}
/* sections */
.section{padding:62px 0;}
.section--alt{background:#fff;border-top:1px solid var(--line);border-bottom:1px solid var(--line);}
.section-head{max-width:780px;margin-bottom:32px;}
.section-head.center{margin-left:auto;margin-right:auto;text-align:center;}
.section-tag{display:inline-block;font-size:12.5px;font-weight:700;color:var(--blue);letter-spacing:1.8px;}
.section-title{font-size:clamp(22px,2.4vw,30px);line-height:1.45;margin:10px 0 12px;font-weight:800;letter-spacing:-.3px;}
.section-desc{color:var(--ink-2);font-size:15px;line-height:1.9;}
.grid-2{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:22px;}
.grid-3{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:22px;}
.card{background:#fff;border:1px solid var(--line);border-radius:var(--r);padding:26px;box-shadow:var(--shadow-sm);min-width:0;transition:transform .2s,box-shadow .2s,border-color .2s;}
.card:hover{transform:translateY(-3px);box-shadow:var(--shadow);border-color:#cfdcf3;}
/* article */
.article-hero{padding:34px 0 30px;background:radial-gradient(900px 340px at 20% -140px,#e7efff 0%,rgba(246,249,254,0) 70%),linear-gradient(180deg,#f9fbff 0%,#f6f9fe 100%);border-bottom:1px solid var(--line);}
.crumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--ink-3);}
.crumb a{color:var(--blue-d);transition:color .2s;}
.crumb a:hover{color:var(--blue);text-decoration:underline;}
.crumb span.sep{color:#c3cfe2;}
.article-hero h1{font-size:clamp(24px,3vw,34px);line-height:1.45;margin:16px 0 16px;max-width:920px;}
.article-meta{display:flex;flex-wrap:wrap;gap:10px;align-items:center;font-size:13px;color:var(--ink-3);}
.chip{display:inline-flex;align-items:center;gap:6px;padding:5px 13px;border-radius:999px;background:#fff;border:1px solid #d8e4f8;font-size:12.5px;color:var(--blue-d);font-weight:600;}
.article-layout{display:grid;grid-template-columns:minmax(0,1fr) 320px;gap:34px;align-items:start;padding:42px 0 56px;}
.article-main{min-width:0;max-width:720px;}
.article-body{background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);padding:34px 32px;box-shadow:var(--shadow-sm);min-width:0;}
.article-body h2{font-size:clamp(19px,2.1vw,23px);line-height:1.5;margin:30px 0 12px;padding-left:12px;border-left:4px solid var(--blue);}
.article-body h3{font-size:17px;line-height:1.6;margin:24px 0 10px;color:var(--blue-d);}
.article-body h2:first-child,.article-body h3:first-child{margin-top:0;}
.article-body p{font-size:15.5px;line-height:1.95;color:var(--ink-2);margin:12px 0;}
.article-body ul,.article-body ol{font-size:15.5px;line-height:1.95;color:var(--ink-2);margin:12px 0;}
.article-body li{margin:6px 0;}
.article-body strong{color:var(--ink);}
.article-body a{color:var(--blue);text-decoration:underline;text-underline-offset:3px;}
.article-body a:hover{color:var(--blue-d);}
.article-body img{border-radius:14px;margin:20px 0;width:100%;height:auto;border:1px solid var(--line);}
.article-body blockquote{margin:20px 0;padding:14px 18px;background:var(--blue-l);border-left:4px solid var(--blue);border-radius:0 12px 12px 0;color:var(--ink-2);font-size:15px;}
.article-body table{width:100%;border-collapse:collapse;margin:18px 0;font-size:14.5px;}
.article-body th,.article-body td{border:1px solid var(--line);padding:10px 12px;text-align:left;}
.article-body th{background:#f4f8ff;color:var(--ink);font-weight:700;}
.article-body code{background:#f2f6fd;padding:2px 6px;border-radius:6px;font-size:13.5px;color:var(--blue-d);}
.article-side{min-width:0;display:flex;flex-direction:column;gap:18px;position:sticky;top:88px;}
.side-card{background:#fff;border:1px solid var(--line);border-radius:var(--r);padding:22px;box-shadow:var(--shadow-sm);min-width:0;}
.side-card h3{font-size:15px;font-weight:800;margin-bottom:12px;display:flex;align-items:center;gap:8px;}
.side-card h3::before{content:"";width:4px;height:15px;border-radius:2px;background:var(--blue);}
.info-row{display:flex;justify-content:space-between;gap:12px;font-size:13.5px;color:var(--ink-3);padding:7px 0;border-bottom:1px dashed var(--line);min-width:0;}
.info-row:last-child{border-bottom:none;}
.info-row b{color:var(--ink);font-weight:600;text-align:right;min-width:0;overflow-wrap:anywhere;}
.side-dl a{display:flex;align-items:center;justify-content:space-between;gap:10px;padding:11px 14px;border-radius:11px;background:var(--blue);color:#fff;font-size:13.5px;font-weight:600;margin-bottom:9px;box-shadow:0 14px 24px -20px rgba(27,87,214,.95);transition:background .2s,transform .2s;}
.side-dl a:last-child{margin-bottom:0;}
.side-dl a:hover{background:var(--blue-d);transform:translateX(2px);}
.side-dl a span{opacity:.82;font-weight:400;font-size:12px;}
.side-note{background:#f4f8ff;border:1px solid #dbe7fa;border-radius:var(--r);padding:18px;font-size:13px;color:var(--ink-3);line-height:1.8;}
.side-note strong{display:block;color:var(--ink);font-size:13.5px;margin-bottom:6px;}
.notfound{background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);padding:44px 32px;text-align:center;box-shadow:var(--shadow-sm);}
.notfound h2{font-size:20px;margin-bottom:10px;}
.notfound p{color:var(--ink-3);font-size:14.5px;margin-bottom:20px;}
.risk-note{background:linear-gradient(120deg,#0e2f73,#1b57d6);color:#e8f0ff;border-radius:var(--r-lg);padding:30px 32px;display:grid;grid-template-columns:minmax(0,1fr) auto;gap:24px;align-items:center;box-shadow:var(--shadow);}
.risk-note h2{color:#fff;font-size:19px;margin-bottom:8px;}
.risk-note p{font-size:14px;line-height:1.9;color:#cddcf8;}
.risk-note .btn{background:#fff;color:var(--blue-d);white-space:nowrap;}
.risk-note .btn:hover{background:var(--blue-l);transform:translateY(-2px);}
.dl-panel{background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);padding:38px 34px;box-shadow:var(--shadow);}
.dl-head{max-width:720px;margin-bottom:26px;}
.dl-head h2{font-size:clamp(21px,2.4vw,28px);margin:10px 0 10px;line-height:1.45;}
.dl-head p{color:var(--ink-2);font-size:15px;line-height:1.9;}
.dl-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:18px;}
.dl-card{display:flex;flex-direction:column;gap:10px;padding:22px;border:1px solid var(--line);border-radius:var(--r);background:#fbfdff;min-width:0;transition:border-color .2s,transform .2s,box-shadow .2s;}
.dl-card:hover{border-color:#bcd1f5;transform:translateY(-3px);box-shadow:var(--shadow-sm);}
.dl-badge{width:44px;height:44px;border-radius:12px;background:var(--blue-l);color:var(--blue-d);display:grid;place-items:center;font-weight:800;font-size:14px;border:1px solid #d8e4f8;}
.dl-card strong{font-size:16px;font-weight:800;}
.dl-card p{font-size:13px;color:var(--ink-3);line-height:1.75;}
.dl-card .dl-link{margin-top:auto;display:inline-flex;align-items:center;gap:6px;font-size:14px;font-weight:700;color:var(--blue);}
.dl-card:hover .dl-link{color:var(--blue-d);}
.channel-card{display:flex;align-items:center;justify-content:space-between;gap:24px;background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);padding:30px 32px;box-shadow:var(--shadow-sm);flex-wrap:wrap;}
.channel-card h2{font-size:20px;margin-bottom:8px;}
.channel-card p{color:var(--ink-2);font-size:14.5px;line-height:1.9;max-width:660px;}
.faq-list{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:16px;}
.faq-item{background:#fff;border:1px solid var(--line);border-radius:var(--r);padding:20px 22px;box-shadow:var(--shadow-sm);min-width:0;transition:border-color .2s;}
.faq-item[open]{border-color:#bcd1f5;}
.faq-item summary{list-style:none;cursor:pointer;font-size:15px;font-weight:700;color:var(--ink);display:flex;align-items:flex-start;gap:10px;}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary::before{content:"+";flex:0 0 auto;width:20px;height:20px;border-radius:6px;background:var(--blue-l);color:var(--blue);display:grid;place-items:center;font-size:14px;line-height:1;margin-top:2px;}
.faq-item[open] summary::before{content:"−";}
.faq-item p{margin-top:12px;font-size:14px;line-height:1.9;color:var(--ink-2);}
.cta-band{background:linear-gradient(120deg,#f0f5ff,#ffffff);border:1px solid var(--line);border-radius:var(--r-lg);padding:38px 32px;text-align:center;box-shadow:var(--shadow-sm);}
.cta-band h2{font-size:clamp(20px,2.3vw,26px);margin-bottom:10px;}
.cta-band p{color:var(--ink-2);font-size:15px;line-height:1.9;max-width:680px;margin:0 auto 22px;}
.cta-actions{display:flex;gap:12px;justify-content:center;flex-wrap:wrap;}
/* footer */
.site-footer{background:#0b1a30;color:#c3d0e4;padding:52px 0 26px;margin-top:20px;}
.footer-grid{display:grid;grid-template-columns:minmax(0,1.6fr) repeat(2,minmax(0,1fr));gap:34px;padding-bottom:28px;border-bottom:1px solid rgba(255,255,255,.1);}
.footer-brand strong{display:block;color:#fff;font-size:17px;font-weight:800;margin-bottom:10px;}
.footer-brand p{font-size:13.5px;line-height:1.9;color:#9fb2cd;max-width:520px;}
.footer-col h4{color:#fff;font-size:14px;font-weight:700;margin-bottom:12px;}
.footer-col a{display:block;font-size:13.5px;color:#9fb2cd;padding:4px 0;transition:color .2s,transform .2s;}
.footer-col a:hover{color:#fff;transform:translateX(2px);}
.footer-risk{margin-top:22px;font-size:12.5px;line-height:1.9;color:#8fa3c0;background:rgba(255,255,255,.04);border:1px solid rgba(255,255,255,.08);border-radius:12px;padding:16px 18px;}
.footer-bottom{display:flex;justify-content:space-between;gap:14px;flex-wrap:wrap;margin-top:20px;font-size:12.5px;color:#8298b8;}
@media (max-width:1024px){
  .article-layout{grid-template-columns:minmax(0,1fr);gap:26px;padding:34px 0 46px;}
  .article-side{position:static;}
  .article-main{max-width:none;}
  .dl-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
  .grid-3{grid-template-columns:repeat(2,minmax(0,1fr));}
  .footer-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
}
@media (max-width:768px){
  .section{padding:46px 0;}
  .header-inner{gap:12px;}
  .main-nav{margin-left:0;width:100%;order:3;}
  .main-nav a{font-size:14px;padding:7px 11px;}
  .header-cta{margin-left:auto;}
  .article-body{padding:24px 20px;}
  .risk-note{grid-template-columns:minmax(0,1fr);padding:26px 22px;}
  .dl-panel{padding:26px 20px;}
  .dl-grid{grid-template-columns:minmax(0,1fr);}
  .faq-list{grid-template-columns:minmax(0,1fr);}
  .grid-2,.grid-3{grid-template-columns:minmax(0,1fr);}
  .channel-card{padding:24px 20px;}
  .footer-grid{grid-template-columns:minmax(0,1fr);gap:24px;}
}
@media (max-width:520px){
  .wrap{padding:0 16px;}
  .article-hero{padding:24px 0 22px;}
  .article-meta{font-size:12.5px;}
  .cta-actions .btn,.risk-note .btn{width:100%;}
  .cta-band{padding:28px 20px;}
  .article-body h2{font-size:18px;}
}

/* roulang page: category1 */
:root{
  --ink:#0d1b2e;
  --ink-2:#3b4a60;
  --ink-3:#6b7a90;
  --blue:#1b57d6;
  --blue-d:#0e2f73;
  --blue-l:#edf3ff;
  --line:#e2e9f4;
  --bg:#f6f9fe;
  --white:#ffffff;
  --r:16px;
  --r-lg:22px;
  --shadow-sm:0 8px 20px -16px rgba(15,42,90,.45);
  --shadow:0 22px 50px -30px rgba(15,42,90,.45);
}
*,*::before,*::after{box-sizing:border-box;}
body{margin:0;font-family:"PingFang SC","Microsoft YaHei","Hiragino Sans GB",system-ui,-apple-system,"Segoe UI",sans-serif;color:var(--ink);background:var(--bg);line-height:1.7;-webkit-font-smoothing:antialiased;}
h1,h2,h3,h4,p,figure,ul,ol{margin:0;}
ul,ol{padding:0;list-style:none;}
img{max-width:100%;height:auto;display:block;}
a{color:inherit;text-decoration:none;}
button{font-family:inherit;}
.wrap{width:100%;max-width:1180px;margin:0 auto;padding:0 20px;}
/* header */
.site-header{position:sticky;top:0;z-index:60;background:rgba(255,255,255,.94);backdrop-filter:blur(10px);border-bottom:1px solid var(--line);}
.header-inner{display:flex;align-items:center;gap:20px;min-height:72px;flex-wrap:wrap;padding:10px 0;}
.brand{display:flex;align-items:center;gap:10px;min-width:0;}
.brand-mark{flex:0 0 auto;width:40px;height:40px;border-radius:12px;background:linear-gradient(140deg,#1b57d6,#0e2f73);color:#fff;display:grid;place-items:center;font-weight:800;font-size:17px;}
.brand-text strong{display:block;font-size:17px;font-weight:800;letter-spacing:.5px;line-height:1.3;}
.brand-text small{display:block;font-size:11px;color:var(--ink-3);letter-spacing:1.6px;line-height:1.4;}
.main-nav{display:flex;gap:6px;margin-left:auto;flex-wrap:wrap;}
.main-nav a{padding:8px 14px;border-radius:10px;font-size:15px;color:var(--ink-2);transition:background .2s,color .2s;white-space:nowrap;}
.main-nav a:hover{background:var(--blue-l);color:var(--blue-d);}
.main-nav a.active{color:#fff;background:var(--blue);}
.header-cta{margin-left:6px;}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;border-radius:12px;padding:12px 22px;font-size:15px;font-weight:600;border:1px solid transparent;cursor:pointer;transition:transform .18s,box-shadow .18s,background .18s,border-color .18s,color .18s;text-align:center;}
.btn-primary{background:var(--blue);color:#fff;box-shadow:0 14px 26px -18px rgba(27,87,214,.95);}
.btn-primary:hover{background:var(--blue-d);transform:translateY(-2px);}
.btn-primary:active{transform:translateY(0);}
.btn-ghost{background:#fff;color:var(--blue-d);border-color:#cddcf7;}
.btn-ghost:hover{border-color:var(--blue);background:var(--blue-l);}
.btn-sm{padding:9px 16px;font-size:14px;border-radius:10px;}
.btn:focus-visible{outline:3px solid #9dbcf5;outline-offset:2px;}
/* pill nav */
.pillbar{background:#fff;border-bottom:1px solid var(--line);}
.pillbar-inner{display:flex;gap:10px;overflow-x:auto;padding:12px 0;scrollbar-width:none;}
.pillbar-inner::-webkit-scrollbar{display:none;}
.pill{flex:0 0 auto;padding:8px 16px;border-radius:999px;background:#f2f6fd;border:1px solid var(--line);font-size:14px;color:var(--ink-2);transition:background .2s,color .2s,border-color .2s;white-space:nowrap;}
.pill:hover{background:var(--blue-l);color:var(--blue-d);border-color:#c9daf8;}
.pill.is-active{background:var(--blue-d);color:#fff;border-color:var(--blue-d);}
/* hero */
.hero{padding:50px 0 56px;background:radial-gradient(1000px 380px at 22% -140px,#e7efff 0%,rgba(246,249,254,0) 72%),linear-gradient(180deg,#f9fbff 0%,#f6f9fe 100%);}
.hero-grid{display:grid;grid-template-columns:minmax(0,1.15fr) minmax(0,.85fr);gap:34px;align-items:start;}
.eyebrow{display:inline-flex;align-items:center;gap:8px;padding:6px 14px;border-radius:999px;background:#fff;border:1px solid #d8e4f8;color:var(--blue-d);font-size:13px;font-weight:600;letter-spacing:.6px;}
.hero h1{font-size:clamp(25px,3vw,36px);line-height:1.42;margin:18px 0 16px;font-weight:800;letter-spacing:-.4px;}
.hero h1 em{font-style:normal;color:var(--blue);}
.hero-lead{font-size:15.5px;color:var(--ink-2);line-height:1.95;}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:26px;}
.hero-note{margin-top:18px;font-size:13px;color:var(--ink-3);display:flex;gap:8px;align-items:flex-start;line-height:1.7;}
.hero-note span{flex:0 0 auto;width:18px;height:18px;border-radius:50%;background:var(--blue-l);color:var(--blue-d);font-size:11px;display:grid;place-items:center;font-weight:700;margin-top:3px;}
.spec-card{background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);overflow:hidden;box-shadow:0 40px 80px -56px rgba(15,42,90,.75),0 10px 24px -20px rgba(15,42,90,.35);}
.spec-top{display:flex;align-items:center;gap:10px;padding:14px 18px;border-bottom:1px solid var(--line);background:#fbfdff;}
.spec-top strong{font-size:14px;font-weight:700;}
.spec-top small{margin-left:auto;font-size:12px;color:var(--ink-3);}
.spec-body{padding:8px 18px 14px;background:#f7faff;}
.spec-row{display:flex;justify-content:space-between;gap:12px;padding:11px 0;border-bottom:1px dashed #e4ecf8;font-size:13.5px;color:var(--ink-2);min-width:0;}
.spec-row:last-child{border-bottom:0;}
.spec-row strong{color:var(--ink);font-weight:600;white-space:nowrap;}
.spec-foot{padding:12px 18px;border-top:1px solid var(--line);font-size:12px;color:var(--ink-3);background:#fbfdff;line-height:1.7;}
/* sections */
.section{padding:60px 0;}
.section--alt{background:#fff;border-top:1px solid var(--line);border-bottom:1px solid var(--line);}
.section-head{max-width:800px;margin-bottom:30px;}
.section-head.center{margin-left:auto;margin-right:auto;text-align:center;}
.section-tag{display:inline-block;font-size:12.5px;font-weight:700;color:var(--blue);letter-spacing:1.8px;}
.section-title{font-size:clamp(21px,2.3vw,29px);line-height:1.45;margin:10px 0 12px;font-weight:800;letter-spacing:-.3px;}
.section-desc{color:var(--ink-2);font-size:15px;line-height:1.9;}
.grid-2{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:22px;}
.grid-3{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:22px;}
.grid-4{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:18px;}
.card{background:#fff;border:1px solid var(--line);border-radius:var(--r);padding:26px;box-shadow:var(--shadow-sm);min-width:0;transition:transform .2s,box-shadow .2s,border-color .2s;}
.card:hover{transform:translateY(-3px);box-shadow:var(--shadow);border-color:#cfdef7;}
.card-ico{width:42px;height:42px;border-radius:12px;background:var(--blue-l);color:var(--blue-d);display:grid;place-items:center;font-weight:800;font-size:15px;margin-bottom:16px;}
.card h3{font-size:16.5px;font-weight:700;margin-bottom:8px;line-height:1.5;min-width:0;}
.card p{font-size:14px;color:var(--ink-2);line-height:1.85;min-width:0;}
.card ul{margin-top:12px;}
.card ul li{position:relative;padding-left:16px;font-size:13.5px;color:var(--ink-3);line-height:1.85;}
.card ul li::before{content:"";position:absolute;left:0;top:11px;width:6px;height:6px;border-radius:50%;background:#b9cff3;}
/* plans */
.plan-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(280px,1fr));gap:22px;}
.plan-card{background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);padding:28px;box-shadow:var(--shadow-sm);min-width:0;display:flex;flex-direction:column;transition:transform .2s,box-shadow .2s,border-color .2s;}
.plan-card:hover{transform:translateY(-4px);box-shadow:var(--shadow);border-color:#cfdef7;}
.plan-card--featured{border-color:#b9cff3;background:linear-gradient(180deg,#fbfdff 0%,#ffffff 46%);}
.plan-name{font-size:12.5px;font-weight:700;letter-spacing:1.6px;color:var(--blue);}
.plan-card h3{font-size:19px;font-weight:800;margin:8px 0 12px;line-height:1.4;}
.plan-card p{font-size:14px;color:var(--ink-2);line-height:1.85;}
.plan-list{margin:16px 0 0;}
.plan-list li{display:flex;gap:10px;font-size:13.5px;color:var(--ink-2);line-height:1.8;padding:7px 0;border-top:1px dashed #e8eef8;min-width:0;}
.plan-list li:first-child{border-top:0;}
.plan-list b{flex:0 0 auto;font-weight:600;color:var(--ink);}
.plan-list span{margin-left:auto;color:var(--ink-3);text-align:right;}
.plan-note{margin-top:22px;font-size:13px;color:var(--ink-3);background:#fff;border:1px solid var(--line);border-radius:12px;padding:16px 18px;line-height:1.8;}
/* flow */
.flow{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:18px;}
.flow-step{position:relative;background:#fff;border:1px solid var(--line);border-radius:var(--r);padding:22px;box-shadow:var(--shadow-sm);min-width:0;}
.flow-num{width:34px;height:34px;border-radius:10px;background:var(--blue-d);color:#fff;display:grid;place-items:center;font-weight:700;font-size:14px;margin-bottom:14px;}
.flow-step h3{font-size:15.5px;font-weight:700;margin-bottom:8px;line-height:1.5;}
.flow-step p{font-size:13.5px;color:var(--ink-2);line-height:1.85;}
/* scenes */
.scene-card{display:flex;gap:16px;background:#fff;border:1px solid var(--line);border-radius:var(--r);padding:22px;box-shadow:var(--shadow-sm);min-width:0;transition:border-color .2s,box-shadow .2s,transform .2s;}
.scene-card:hover{border-color:#cfdef7;box-shadow:var(--shadow);transform:translateY(-2px);}
.scene-mark{flex:0 0 auto;width:46px;height:46px;border-radius:14px;background:var(--blue-l);color:var(--blue-d);display:grid;place-items:center;font-weight:800;font-size:14px;}
.scene-body{min-width:0;}
.scene-body h3{font-size:16px;font-weight:700;margin-bottom:6px;line-height:1.5;}
.scene-body p{font-size:14px;color:var(--ink-2);line-height:1.85;}
/* download */
.dl-band{background:linear-gradient(135deg,#0e2f73 0%,#1b57d6 100%);border-radius:var(--r-lg);padding:38px;color:#fff;box-shadow:0 34px 70px -46px rgba(14,47,115,.9);}
.dl-inner{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1.05fr);gap:30px;align-items:center;}
.dl-band h2{font-size:clamp(20px,2.2vw,26px);font-weight:800;line-height:1.45;margin-bottom:12px;}
.dl-band p{font-size:14px;color:#d6e3fb;line-height:1.9;}
.dl-btns{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:12px;}
.btn-dl{display:flex;flex-direction:column;align-items:center;justify-content:center;gap:4px;padding:16px 10px;border-radius:14px;background:rgba(255,255,255,.12);border:1px solid rgba(255,255,255,.35);color:#fff;font-size:14.5px;font-weight:700;transition:background .2s,transform .2s,border-color .2s;min-width:0;}
.btn-dl small{font-size:11.5px;font-weight:400;color:#cddcf7;letter-spacing:.4px;}
.btn-dl:hover{background:rgba(255,255,255,.24);border-color:#fff;transform:translateY(-2px);}
.btn-dl:focus-visible{outline:3px solid #fff;outline-offset:2px;}
.dl-tip{margin-top:18px;font-size:12.5px;color:#c9d9f6;line-height:1.8;}
/* posts */
.post-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:20px;}
.post-card{display:flex;flex-direction:column;gap:10px;background:#fff;border:1px solid var(--line);border-radius:var(--r);padding:22px;box-shadow:var(--shadow-sm);min-width:0;transition:transform .2s,box-shadow .2s,border-color .2s;}
.post-card:hover{transform:translateY(-3px);box-shadow:var(--shadow);border-color:#cfdef7;}
.post-card h3{font-size:15.5px;font-weight:700;line-height:1.55;min-width:0;}
.post-card p{font-size:13.5px;color:var(--ink-2);line-height:1.8;min-width:0;}
.post-meta{display:flex;align-items:center;gap:12px;font-size:12.5px;color:var(--ink-3);margin-top:auto;flex-wrap:wrap;}
.post-cat{padding:2px 10px;border-radius:999px;background:var(--blue-l);color:var(--blue-d);font-size:12px;}
.empty-tip{font-size:14px;color:var(--ink-3);background:#fff;border:1px dashed #cddcf7;border-radius:12px;padding:22px;text-align:center;}
/* faq */
.faq-list{display:grid;gap:12px;}
.faq-item{background:#fff;border:1px solid var(--line);border-radius:14px;box-shadow:var(--shadow-sm);overflow:hidden;}
.faq-item summary{cursor:pointer;list-style:none;padding:18px 22px;font-size:15px;font-weight:600;display:flex;align-items:center;gap:12px;transition:background .2s,color .2s;}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary::after{content:"+";margin-left:auto;font-size:19px;color:var(--blue);font-weight:700;line-height:1;}
.faq-item[open] summary{background:var(--blue-l);color:var(--blue-d);}
.faq-item[open] summary::after{content:"–";}
.faq-item summary:hover{background:#f7faff;}
.faq-item p{padding:0 22px 20px;font-size:14px;color:var(--ink-2);line-height:1.9;}
/* cta */
.cta-band{background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);padding:36px;display:flex;align-items:center;gap:26px;flex-wrap:wrap;box-shadow:var(--shadow-sm);}
.cta-band h2{font-size:clamp(19px,2.1vw,25px);font-weight:800;line-height:1.5;margin-bottom:8px;}
.cta-band p{font-size:14px;color:var(--ink-2);line-height:1.85;max-width:640px;}
.cta-actions{margin-left:auto;display:flex;gap:12px;flex-wrap:wrap;}
/* footer */
.site-footer{background:#0d1b2e;color:#c3d1e6;margin-top:20px;padding:52px 0 26px;}
.footer-grid{display:grid;grid-template-columns:minmax(0,1.6fr) repeat(2,minmax(0,1fr));gap:30px;}
.footer-brand strong{display:block;color:#fff;font-size:16px;font-weight:800;margin-bottom:10px;line-height:1.5;}
.footer-brand p{font-size:13.5px;line-height:1.9;color:#9fb2cc;}
.footer-col h4{color:#fff;font-size:14px;font-weight:700;margin-bottom:12px;}
.footer-col a{display:block;font-size:13.5px;color:#a9bcd6;padding:5px 0;transition:color .2s,transform .2s;}
.footer-col a:hover{color:#fff;transform:translateX(3px);}
.footer-risk{margin-top:30px;padding:16px 18px;border:1px solid rgba(255,255,255,.14);border-radius:12px;font-size:12.5px;line-height:1.9;color:#93a7c2;background:rgba(255,255,255,.04);}
.footer-bottom{margin-top:22px;padding-top:18px;border-top:1px solid rgba(255,255,255,.12);display:flex;justify-content:space-between;gap:14px;flex-wrap:wrap;font-size:12.5px;color:#8fa2bd;}
@media(max-width:1024px){
  .hero-grid{grid-template-columns:minmax(0,1fr);gap:26px;}
  .grid-4{grid-template-columns:repeat(2,minmax(0,1fr));}
  .flow{grid-template-columns:repeat(2,minmax(0,1fr));}
  .post-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
  .dl-inner{grid-template-columns:minmax(0,1fr);}
  .footer-grid{grid-template-columns:minmax(0,1fr) minmax(0,1fr);}
}
@media(max-width:768px){
  .header-inner{min-height:auto;padding:12px 0;}
  .main-nav{margin-left:0;width:100%;order:3;overflow-x:auto;flex-wrap:nowrap;padding-bottom:2px;}
  .main-nav a{flex:0 0 auto;}
  .header-cta{margin-left:auto;}
  .section{padding:46px 0;}
  .hero{padding:38px 0 44px;}
  .grid-2,.grid-3,.grid-4{grid-template-columns:minmax(0,1fr);}
  .flow{grid-template-columns:minmax(0,1fr);}
  .post-grid{grid-template-columns:minmax(0,1fr);}
  .dl-band{padding:26px;}
  .dl-btns{grid-template-columns:minmax(0,1fr);}
  .cta-band{padding:26px;}
  .cta-actions{margin-left:0;width:100%;}
  .cta-actions .btn{flex:1 1 auto;}
  .footer-grid{grid-template-columns:minmax(0,1fr);}
}
@media(max-width:520px){
  .wrap{padding:0 16px;}
  .hero h1{font-size:23px;}
  .card,.plan-card,.scene-card{padding:20px;}
  .brand-text small{letter-spacing:1px;}
  .btn{width:100%;}
  .hero-actions .btn{width:100%;}
}