/* roulang page: index */
:root{
  --brand-900:#0F2E6E;
  --brand-700:#143A8C;
  --brand-500:#2E5BFF;
  --accent-500:#FF6A2A;
  --accent-050:#FFF1E8;
  --mint-500:#22D3C5;
  --bg:#F5F7FC;
  --surface:#FFFFFF;
  --line:#E4E9F5;
  --ink:#1A2238;
  --ink-2:#5A6785;
  --ink-3:#8A96B2;
  --shadow-1:0 1px 2px rgba(20,35,90,.06), 0 8px 24px -12px rgba(20,35,90,.14);
  --shadow-2:0 14px 34px -14px rgba(20,35,90,.22);
  --r-sm:14px;
  --r-lg:20px;
}
*{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--bg);
  color:var(--ink);
  font-family:system-ui,-apple-system,"PingFang SC","HarmonyOS Sans","Microsoft YaHei","Source Han Sans SC",sans-serif;
  font-size:16px;
  line-height:1.85;
  -webkit-font-smoothing:antialiased;
}
img{display:block;max-width:100%;}
a{color:inherit;text-decoration:none;}
button{font-family:inherit;}
h1,h2,h3,h4,p,ul,ol{margin:0;}
ul{padding:0;list-style:none;}
.num{font-variant-numeric:tabular-nums;}

/* ---------- 通用容器与板块 ---------- */
.wrap{max-width:1200px;margin:0 auto;padding:0 20px;}
@media (min-width:768px){.wrap{padding:0 32px;}}
.section{padding:56px 0;}
@media (min-width:1024px){.section{padding:72px 0;}}
@media (min-width:1280px){.section{padding:96px 0;}}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:32px;flex-wrap:wrap;}
.sec-title{
  font-size:26px;line-height:1.3;font-weight:700;color:var(--brand-700);
  padding-left:14px;position:relative;
}
.sec-title::before{
  content:"";position:absolute;left:0;top:6px;bottom:6px;width:4px;border-radius:999px;background:var(--brand-700);
}
@media (min-width:1024px){.sec-title{font-size:31px;}}
.sec-sub{font-size:15px;color:var(--ink-2);line-height:1.75;margin-top:8px;padding-left:14px;max-width:680px;}
.sec-no{
  display:inline-block;font-size:13px;letter-spacing:.14em;color:var(--ink-3);
  font-variant-numeric:tabular-nums;margin-bottom:6px;
}
.more-link{font-size:15px;color:var(--brand-500);font-weight:600;display:inline-flex;align-items:center;gap:6px;transition:gap .2s,color .2s;}
.more-link:hover{gap:10px;color:var(--brand-700);}

/* ---------- 导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(255,255,255,.94);
  border-bottom:1px solid transparent;
  transition:box-shadow .25s ease,border-color .25s ease,backdrop-filter .25s ease;
}
.site-header.scrolled{
  border-bottom-color:var(--line);
  box-shadow:0 6px 22px -16px rgba(20,35,90,.42);
  backdrop-filter:blur(8px);
}
.nav-bar{display:flex;align-items:center;justify-content:space-between;height:72px;transition:height .25s ease;}
.site-header.scrolled .nav-bar{height:60px;}
.logo-mark{
  width:38px;height:38px;border-radius:12px;flex:0 0 auto;
  background:linear-gradient(140deg,var(--brand-700),var(--brand-500));
  color:#fff;font-weight:700;font-size:19px;
  display:flex;align-items:center;justify-content:center;
  box-shadow:0 8px 18px -10px rgba(20,58,140,.9);
}
.logo-text{font-size:17px;font-weight:700;color:var(--brand-700);white-space:nowrap;letter-spacing:.2px;}
.nav-link{
  position:relative;display:inline-flex;align-items:center;height:40px;padding:0 14px;
  border-radius:10px;font-size:15px;color:var(--ink-2);
  transition:color .2s ease,background-color .2s ease;
}
.nav-link:hover{color:var(--brand-700);font-weight:600;background:var(--bg);}
.nav-link.active{color:var(--brand-700);font-weight:600;}
.nav-link.active::after{
  content:"";position:absolute;left:14px;right:14px;bottom:2px;height:3px;border-radius:999px;background:var(--brand-700);
}
.status-pill{
  display:inline-flex;align-items:center;gap:7px;height:26px;padding:0 12px;border-radius:999px;
  background:#E9FBF8;color:#0E7A70;font-size:13px;font-weight:600;
}
.status-pill .dot{
  width:7px;height:7px;border-radius:999px;background:var(--mint-500);
  box-shadow:0 0 0 3px rgba(34,211,197,.22);
}
.countdown-pill{
  display:inline-flex;align-items:center;gap:6px;height:26px;padding:0 12px;border-radius:999px;
  background:var(--accent-500);color:#fff;font-size:13px;font-weight:600;
  font-variant-numeric:tabular-nums;
}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:46px;padding:0 24px;border-radius:999px;font-size:15px;font-weight:600;
  border:1px solid transparent;cursor:pointer;transition:transform .2s ease,box-shadow .2s ease,filter .2s ease,background-color .2s ease;
  white-space:nowrap;
}
.btn-primary{background:var(--accent-500);color:#fff;box-shadow:0 10px 22px -14px rgba(255,106,42,.95);}
.btn-primary:hover{filter:brightness(.94);transform:translateY(-1px);box-shadow:0 16px 30px -16px rgba(255,106,42,.95);}
.btn-primary:active{transform:translateY(0);}
.btn-outline{background:#fff;color:var(--brand-700);border-color:#C9D5EE;}
.btn-outline:hover{background:var(--bg);transform:translateY(-1px);box-shadow:var(--shadow-1);}
.btn-ghost{background:rgba(255,255,255,.14);color:#fff;border-color:rgba(255,255,255,.55);}
.btn-ghost:hover{background:rgba(255,255,255,.24);transform:translateY(-1px);}
.btn-sm{height:38px;padding:0 18px;font-size:14px;}
.btn:focus-visible,a:focus-visible,button:focus-visible,input:focus-visible{
  outline:2px solid var(--brand-500);outline-offset:2px;
}
.burger{
  width:44px;height:44px;border-radius:12px;border:1px solid var(--line);background:#fff;
  display:flex;align-items:center;justify-content:center;color:var(--brand-700);font-size:18px;cursor:pointer;
}
.drawer{
  position:fixed;inset:0;background:#fff;z-index:90;transform:translateX(100%);
  transition:transform .3s ease;display:flex;flex-direction:column;
}
.drawer.open{transform:translateX(0);}
.drawer-head{display:flex;align-items:center;justify-content:space-between;height:72px;padding:0 20px;border-bottom:1px solid var(--line);}
.drawer-body{flex:1;overflow-y:auto;padding:8px 20px 24px;}
.drawer-link{
  display:flex;align-items:center;justify-content:space-between;
  height:48px;font-size:16px;color:var(--ink);border-bottom:1px solid var(--line);
}
.drawer-link.active{color:var(--brand-700);font-weight:600;}
.drawer-foot{padding:16px 20px 28px;border-top:1px solid var(--line);display:flex;flex-direction:column;gap:12px;}
.drawer-close{width:40px;height:40px;border-radius:10px;border:1px solid var(--line);background:#fff;color:var(--ink-2);cursor:pointer;}

/* ---------- Hero ---------- */
.hero{position:relative;overflow:hidden;background:var(--brand-900);}
.hero-bg{
  position:absolute;inset:0;background-size:cover;background-position:center;
  opacity:.9;
}
.hero-mask{
  position:absolute;inset:0;
  background:linear-gradient(90deg,rgba(15,46,110,.96) 0%,rgba(15,46,110,.88) 42%,rgba(15,46,110,.42) 74%,rgba(15,46,110,.28) 100%);
}
.hero-inner{position:relative;padding:64px 0 72px;}
@media (min-width:1024px){.hero-inner{padding:92px 0 96px;display:grid;grid-template-columns:7fr 5fr;gap:48px;align-items:center;min-height:600px;}}
.hero-eyebrow{
  display:inline-flex;align-items:center;gap:8px;height:28px;padding:0 14px;border-radius:999px;
  background:rgba(255,255,255,.14);color:#DCE6FF;font-size:13px;letter-spacing:.06em;border:1px solid rgba(255,255,255,.22);
}
.hero h1{
  margin-top:20px;color:#fff;font-weight:700;
  font-size:30px;line-height:1.2;
}
@media (min-width:640px){.hero h1{font-size:38px;}}
@media (min-width:1024px){.hero h1{font-size:46px;line-height:1.15;}}
@media (min-width:1280px){.hero h1{font-size:50px;}}
.hero-sub{margin-top:16px;color:#C7D4F2;font-size:16px;line-height:1.75;max-width:520px;}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:28px;}
.hero-pills{display:flex;flex-wrap:wrap;gap:10px;margin-top:28px;}
.hero-pill{
  display:inline-flex;align-items:center;gap:8px;height:28px;padding:0 13px;border-radius:999px;
  background:rgba(255,255,255,.1);border:1px solid rgba(255,255,255,.2);color:#D7E2FA;font-size:13px;
}
.hero-pill i{color:var(--mint-500);font-size:11px;}
.hero-card{
  margin-top:32px;background:rgba(255,255,255,.96);border-radius:var(--r-lg);padding:20px;
  box-shadow:var(--shadow-2);border:1px solid rgba(255,255,255,.6);
}
@media (min-width:1024px){.hero-card{margin-top:0;}}
.hero-card-head{display:flex;align-items:center;justify-content:space-between;gap:12px;}
.hero-card-tag{font-size:13px;color:var(--brand-700);font-weight:600;background:#EDF2FF;border-radius:999px;padding:3px 10px;}
.hero-card-time{font-size:13px;color:var(--ink-3);}
.hero-card h3{font-size:17px;font-weight:600;color:var(--ink);margin-top:12px;line-height:1.5;}
.hero-card p{font-size:14px;color:var(--ink-2);margin-top:8px;line-height:1.7;}
.hero-card-foot{
  display:flex;align-items:center;justify-content:space-between;margin-top:16px;
  padding-top:14px;border-top:1px solid var(--line);font-size:14px;color:var(--brand-500);font-weight:600;
}
.hero-card-foot .cd{color:var(--accent-500);font-variant-numeric:tabular-nums;}

/* ---------- 指标条 ---------- */
.metrics{
  display:grid;grid-template-columns:1fr;gap:16px;
  margin-top:-36px;position:relative;z-index:5;
}
@media (min-width:640px){.metrics{grid-template-columns:repeat(2,1fr);}}
@media (min-width:1024px){.metrics{grid-template-columns:repeat(4,1fr);gap:24px;}}
.metric-card{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-sm);
  padding:18px 20px;box-shadow:var(--shadow-1);
}
.metric-num{font-size:26px;font-weight:700;color:var(--brand-700);line-height:1.2;font-variant-numeric:tabular-nums;}
.metric-label{font-size:13px;color:var(--ink-3);margin-top:6px;}

/* ---------- 横滑片库 ---------- */
.hscroll-wrap{position:relative;}
.hscroll{
  display:flex;gap:16px;overflow-x:auto;scroll-snap-type:x mandatory;
  padding:4px 4px 18px;margin:0 -4px;-webkit-overflow-scrolling:touch;
}
.hscroll::-webkit-scrollbar{height:6px;}
.hscroll::-webkit-scrollbar-thumb{background:#CBD6EC;border-radius:999px;}
.hscroll::-webkit-scrollbar-track{background:transparent;}
.slide-card{
  flex:0 0 168px;scroll-snap-align:start;background:var(--surface);border:1px solid var(--line);
  border-radius:var(--r-sm);overflow:hidden;box-shadow:var(--shadow-1);
  transition:box-shadow .3s ease,border-color .3s ease;
}
@media (min-width:640px){.slide-card{flex:0 0 200px;}}
@media (min-width:1024px){.slide-card{flex:0 0 236px;}}
.slide-card:hover{border-color:rgba(46,91,255,.24);box-shadow:var(--shadow-2);}
.slide-cover{position:relative;aspect-ratio:16/9;overflow:hidden;background:#E8EDF8;}
.slide-cover img{width:100%;height:100%;object-fit:cover;transition:transform .3s ease;}
.slide-card:hover .slide-cover img{transform:scale(1.04);}
.slide-cover .badge{
  position:absolute;left:10px;top:10px;height:24px;padding:0 10px;border-radius:999px;
  background:rgba(15,46,110,.86);color:#fff;font-size:12px;display:flex;align-items:center;
}
.slide-body{padding:14px 16px 16px;}
.slide-body h3{font-size:15px;font-weight:600;line-height:1.5;color:var(--ink);}
.slide-body p{font-size:13px;color:var(--ink-3);margin-top:6px;line-height:1.6;}
.slide-meta{display:flex;align-items:center;justify-content:space-between;margin-top:12px;font-size:12px;color:var(--ink-3);}
.slide-meta .go{color:var(--brand-500);font-weight:600;}
.scroll-fade{
  position:absolute;right:0;top:0;bottom:18px;width:56px;pointer-events:none;
  background:linear-gradient(90deg,rgba(245,247,252,0),var(--bg));
}
@media (min-width:1024px){.scroll-fade{display:none;}}

/* ---------- 不等宽网格 ---------- */
.picks{display:grid;grid-template-columns:1fr;gap:16px;}
@media (min-width:1024px){.picks{grid-template-columns:2fr 1fr;gap:24px;}}
.pick-main{
  position:relative;border-radius:var(--r-lg);overflow:hidden;background:var(--surface);
  border:1px solid var(--line);box-shadow:var(--shadow-1);transition:box-shadow .3s ease,border-color .3s ease;
}
.pick-main:hover{border-color:rgba(46,91,255,.24);box-shadow:var(--shadow-2);}
.pick-main .pic{aspect-ratio:16/10;overflow:hidden;}
.pick-main .pic img{width:100%;height:100%;object-fit:cover;transition:transform .3s ease;}
.pick-main:hover .pic img{transform:scale(1.04);}
.pick-main .body{padding:20px;}
.pick-main h3{font-size:20px;font-weight:600;line-height:1.45;margin-top:12px;color:var(--ink);}
.pick-main p{font-size:15px;color:var(--ink-2);margin-top:10px;line-height:1.75;}
.pick-side{display:grid;gap:16px;}
.pick-mini{
  display:grid;grid-template-columns:104px 1fr;gap:14px;background:var(--surface);
  border:1px solid var(--line);border-radius:var(--r-sm);padding:14px;box-shadow:var(--shadow-1);
  transition:box-shadow .3s ease,border-color .3s ease;
}
.pick-mini:hover{border-color:rgba(46,91,255,.24);box-shadow:var(--shadow-2);}
.pick-mini .thumb{aspect-ratio:1/1;border-radius:10px;overflow:hidden;background:#E8EDF8;}
.pick-mini .thumb img{width:100%;height:100%;object-fit:cover;transition:transform .3s ease;}
.pick-mini:hover .thumb img{transform:scale(1.04);}
.pick-mini h4{font-size:15px;font-weight:600;line-height:1.5;color:var(--ink);}
.pick-mini p{font-size:13px;color:var(--ink-3);margin-top:6px;line-height:1.6;}
.chip{
  display:inline-flex;align-items:center;height:25px;padding:0 11px;border-radius:999px;
  font-size:13px;background:#EDF2FF;color:var(--brand-700);font-weight:600;
}
.chip-accent{background:var(--accent-050);color:#C64E14;}
.chip-mint{background:#E9FBF8;color:#0E7A70;}
.meta-row{display:flex;align-items:center;gap:12px;margin-top:12px;font-size:13px;color:var(--ink-3);flex-wrap:wrap;}

/* ---------- 条纹 / 流程 ---------- */
.strip{background:#EEF2FB;border-top:1px solid var(--line);border-bottom:1px solid var(--line);}
.steps{display:grid;gap:16px;grid-template-columns:1fr;}
@media (min-width:1024px){.steps{grid-template-columns:repeat(3,1fr);gap:24px;}}
.step-card{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-sm);
  padding:24px 22px;box-shadow:var(--shadow-1);transition:box-shadow .3s ease,border-color .3s ease;
}
.step-card:hover{border-color:rgba(46,91,255,.24);box-shadow:var(--shadow-2);}
.step-no{
  font-size:30px;font-weight:700;color:rgba(46,91,255,.28);line-height:1;
  font-variant-numeric:tabular-nums;letter-spacing:.02em;
}
.step-card h3{font-size:19px;font-weight:600;margin-top:14px;color:var(--ink);}
.step-card p{font-size:15px;color:var(--ink-2);margin-top:10px;line-height:1.75;}
.step-list{margin-top:14px;border-top:1px dashed var(--line);padding-top:12px;}
.step-list li{position:relative;padding-left:16px;font-size:14px;color:var(--ink-2);line-height:1.9;}
.step-list li::before{
  content:"";position:absolute;left:0;top:12px;width:6px;height:6px;border-radius:999px;background:var(--mint-500);
}

/* ---------- CMS 列表 ---------- */
.news-grid{display:grid;gap:16px;grid-template-columns:1fr;}
@media (min-width:640px){.news-grid{grid-template-columns:repeat(2,1fr);}}
@media (min-width:1024px){.news-grid{grid-template-columns:repeat(3,1fr);gap:24px;}}
.news-card{
  display:flex;flex-direction:column;background:var(--surface);border:1px solid var(--line);
  border-radius:var(--r-sm);overflow:hidden;box-shadow:var(--shadow-1);
  transition:box-shadow .3s ease,border-color .3s ease;
}
.news-card:hover{border-color:rgba(46,91,255,.24);box-shadow:var(--shadow-2);}
.news-cover{aspect-ratio:16/10;overflow:hidden;background:#E8EDF8;}
.news-cover img{width:100%;height:100%;object-fit:cover;transition:transform .3s ease;}
.news-card:hover .news-cover img{transform:scale(1.04);}
.news-body{padding:16px 18px 18px;display:flex;flex-direction:column;flex:1;}
.news-body h3{font-size:16px;font-weight:600;line-height:1.55;color:var(--ink);margin-top:10px;}
.news-body p{font-size:14px;color:var(--ink-2);margin-top:8px;line-height:1.75;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.news-foot{margin-top:auto;padding-top:14px;display:flex;align-items:center;justify-content:space-between;font-size:13px;color:var(--ink-3);}
.news-foot .go{color:var(--brand-500);font-weight:600;}
.empty-state{
  border:1px dashed #C6D2EA;border-radius:var(--r-lg);background:var(--surface);
  padding:48px 24px;text-align:center;
}
.empty-state i{font-size:26px;color:var(--ink-3);}
.empty-state p{font-size:15px;color:var(--ink-2);margin-top:14px;}
.empty-state .more-link{margin-top:10px;}

/* ---------- 对照列表 + 评分条 ---------- */
.compare{display:grid;gap:16px;grid-template-columns:1fr;}
@media (min-width:1024px){.compare{grid-template-columns:1.25fr 1fr;gap:24px;}}
.row-card{
  display:grid;grid-template-columns:120px 1fr;gap:16px;align-items:start;
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-sm);
  padding:16px 18px;min-height:64px;transition:background-color .2s ease,border-color .2s ease,box-shadow .2s ease;
  position:relative;border-left:4px solid transparent;
}
@media (min-width:640px){.row-card{grid-template-columns:150px 1fr;}}
.row-card + .row-card{margin-top:12px;}
.row-card:hover{background:var(--bg);border-left-color:var(--brand-500);box-shadow:var(--shadow-1);}
.row-card dt,.row-card .k{font-size:15px;font-weight:600;color:var(--brand-700);}
.row-card .v{font-size:14px;color:var(--ink-2);line-height:1.75;}
.score-panel{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-lg);
  padding:22px;box-shadow:var(--shadow-1);
}
.score-panel h3{font-size:19px;font-weight:600;color:var(--ink);}
.score-panel .hint{font-size:13px;color:var(--ink-3);margin-top:6px;}
.score-item{margin-top:20px;}
.score-top{display:flex;align-items:center;justify-content:space-between;font-size:14px;color:var(--ink-2);}
.score-top b{color:var(--brand-700);font-variant-numeric:tabular-nums;}
.score-bar{height:8px;border-radius:999px;background:#E8EDF8;margin-top:8px;overflow:hidden;}
.score-bar span{display:block;height:100%;border-radius:999px;background:linear-gradient(90deg,var(--brand-500),var(--mint-500));}

/* ---------- CTA 条 ---------- */
.cta-band{background:var(--brand-900);color:#fff;}
.cta-inner{
  display:grid;gap:22px;align-items:center;padding:44px 0;
}
@media (min-width:1024px){.cta-inner{grid-template-columns:1fr auto;padding:56px 0;gap:40px;}}
.cta-inner h2{font-size:24px;font-weight:700;line-height:1.35;color:#fff;}
@media (min-width:1024px){.cta-inner h2{font-size:30px;}}
.cta-inner p{font-size:15px;color:#BFCEEF;margin-top:10px;max-width:640px;line-height:1.75;}
.cta-actions{display:flex;flex-wrap:wrap;gap:12px;}

/* ---------- FAQ ---------- */
.faq-wrap{max-width:800px;margin:0 auto;}
.faq-item{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-sm);
  margin-bottom:12px;overflow:hidden;transition:border-color .25s ease,box-shadow .25s ease;
}
.faq-item.open{border-color:rgba(46,91,255,.3);box-shadow:var(--shadow-1);}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;
  text-align:left;background:transparent;border:0;cursor:pointer;
  padding:18px 20px;font-size:16px;font-weight:600;color:var(--ink);
}
.faq-icon{
  flex:0 0 auto;width:26px;height:26px;border-radius:999px;background:var(--bg);
  color:var(--brand-700);display:flex;align-items:center;justify-content:center;
  font-size:17px;font-weight:600;line-height:1;transition:background-color .25s ease,color .25s ease;
}
.faq-item.open .faq-icon{background:var(--accent-500);color:#fff;}
.faq-a{max-height:0;overflow:hidden;transition:max-height .3s ease;}
.faq-a-inner{padding:0 20px 20px;font-size:15px;color:var(--ink-2);line-height:1.85;}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--brand-900);color:#C7D2EA;}
.footer-grid{display:grid;gap:32px;grid-template-columns:1fr;}
@media (min-width:640px){.footer-grid{grid-template-columns:repeat(2,1fr);}}
@media (min-width:1024px){.footer-grid{grid-template-columns:1.4fr 1fr 1fr 1fr;gap:40px;}}
.footer-logo{display:flex;align-items:center;gap:10px;}
.footer-logo .logo-mark{background:linear-gradient(140deg,var(--brand-500),var(--mint-500));}
.footer-logo .logo-text{color:#fff;font-size:16px;}
.footer-desc{font-size:14px;line-height:1.85;color:#AFC0E4;margin-top:16px;max-width:340px;}
.footer-title{font-size:14px;font-weight:600;color:#fff;margin-bottom:16px;}
.footer-link{display:block;font-size:14px;line-height:2.1;color:#C7D2EA;transition:color .2s ease;}
.footer-link:hover{color:#fff;text-decoration:underline;}
.footer-status{display:inline-flex;align-items:center;gap:8px;margin-top:14px;font-size:13px;color:#9FE9E1;}
.footer-bottom{
  margin-top:36px;padding-top:20px;border-top:1px solid rgba(255,255,255,.14);
  display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;font-size:13px;color:#93A5CC;
}
.footer-input{
  width:100%;height:46px;border-radius:12px;border:1px solid var(--line);
  padding:0 14px;font-size:14px;color:var(--ink);background:#fff;
  transition:border-color .2s ease,box-shadow .2s ease;
}
.footer-input::placeholder{color:#A9B4CC;}
.footer-input:focus{outline:none;border-color:var(--brand-500);box-shadow:0 0 0 4px rgba(46,91,255,.12);}
.footer-label{font-size:14px;color:#AFC0E4;display:block;margin-bottom:8px;}

/* roulang page: category1 */
:root{
  --brand-900:#0F2E6E;
  --brand-700:#143A8C;
  --brand-500:#2E5BFF;
  --accent-500:#FF6A2A;
  --accent-050:#FFF1E8;
  --mint-500:#22D3C5;
  --bg:#F5F7FC;
  --surface:#FFFFFF;
  --line:#E4E9F5;
  --ink:#1A2238;
  --ink-2:#5A6785;
  --ink-3:#8A96B2;
  --radius-sm:14px;
  --radius-lg:20px;
  --shadow-1:0 1px 2px rgba(20,35,90,.06), 0 8px 24px -12px rgba(20,35,90,.14);
  --shadow-2:0 14px 34px -14px rgba(20,35,90,.22);
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--bg);
  color:var(--ink);
  font-family:system-ui,-apple-system,"PingFang SC","HarmonyOS Sans","Microsoft YaHei","Source Han Sans SC",sans-serif;
  font-size:16px;
  line-height:1.85;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border-style:none;}
a{color:inherit;text-decoration:none;}
button,input{font:inherit;color:inherit;}
button{cursor:pointer;border:0;background:none;}
h1,h2,h3,h4,p{margin:0;}
ul{margin:0;padding:0;list-style:none;}
:focus-visible{outline:2px solid var(--brand-500);outline-offset:3px;}
.num{font-variant-numeric:tabular-nums;}

.wrap{max-width:1200px;margin:0 auto;padding-left:20px;padding-right:20px;}
@media(min-width:768px){.wrap{padding-left:32px;padding-right:32px;}}

/* ---------- header ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(255,255,255,.94);
  backdrop-filter:blur(8px);
  border-bottom:1px solid var(--line);
  transition:height .25s ease, box-shadow .25s ease;
}
.site-header.is-scrolled{box-shadow:0 6px 20px -14px rgba(20,35,90,.35);}
.nav-bar{display:flex;align-items:center;justify-content:space-between;gap:16px;height:72px;transition:height .25s ease;}
.site-header.is-scrolled .nav-bar{height:60px;}
.logo-mark{
  width:36px;height:36px;border-radius:11px;flex:0 0 auto;
  display:flex;align-items:center;justify-content:center;
  background:linear-gradient(140deg,var(--brand-700),var(--brand-500));
  color:#fff;font-weight:700;font-size:17px;letter-spacing:.5px;
}
.logo-text{font-size:16.5px;font-weight:700;color:var(--brand-700);letter-spacing:.2px;white-space:nowrap;}
.nav-link{
  display:inline-flex;align-items:center;height:38px;padding:0 14px;border-radius:10px;
  font-size:15px;color:var(--ink-2);position:relative;transition:background .2s ease,color .2s ease,font-weight .2s ease;
}
.nav-link:hover{background:var(--bg);color:var(--brand-700);font-weight:600;}
.nav-link.active{color:var(--brand-700);font-weight:600;}
.nav-link.active::after{
  content:"";position:absolute;left:14px;right:14px;bottom:2px;height:3px;border-radius:999px;background:var(--brand-700);
}
.status-pill{
  display:inline-flex;align-items:center;gap:6px;height:26px;padding:0 12px;border-radius:999px;
  background:#EAFBF9;color:#0B7C72;font-size:13px;white-space:nowrap;
}
.status-pill .dot{width:7px;height:7px;border-radius:999px;background:var(--mint-500);box-shadow:0 0 0 3px rgba(34,211,197,.22);}
.countdown-pill{
  display:inline-flex;align-items:center;gap:6px;height:26px;padding:0 12px;border-radius:999px;
  background:var(--accent-050);color:#B8430E;font-size:13px;white-space:nowrap;
}
.countdown-pill .num{font-weight:700;color:var(--accent-500);}
.burger{
  width:42px;height:42px;border-radius:12px;border:1px solid var(--line);background:var(--surface);
  color:var(--brand-700);display:flex;align-items:center;justify-content:center;font-size:17px;
}
.burger:hover{background:var(--bg);}

.mobile-panel{
  position:fixed;inset:0;z-index:80;background:#fff;display:none;flex-direction:column;
  padding:20px;
}
.mobile-panel.open{display:flex;}
.mobile-head{display:flex;align-items:center;justify-content:space-between;padding-bottom:16px;border-bottom:1px solid var(--line);}
.mobile-close{width:42px;height:42px;border-radius:12px;border:1px solid var(--line);color:var(--brand-700);font-size:17px;}
.mobile-list{margin-top:8px;flex:1;overflow-y:auto;}
.mobile-list a{
  display:flex;align-items:center;justify-content:space-between;
  height:48px;font-size:15.5px;color:var(--ink);border-bottom:1px solid var(--line);
}
.mobile-list a.active{color:var(--brand-700);font-weight:600;}
.mobile-foot{border-top:1px solid var(--line);padding-top:16px;display:flex;flex-direction:column;gap:12px;}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:46px;padding:0 22px;border-radius:999px;font-size:15px;font-weight:600;
  transition:transform .18s ease,box-shadow .18s ease,background .18s ease,border-color .18s ease;
  white-space:nowrap;
}
.btn-sm{height:38px;padding:0 18px;font-size:14px;}
.btn-primary{background:var(--accent-500);color:#fff;box-shadow:0 10px 22px -14px rgba(255,106,42,.9);}
.btn-primary:hover{background:#F05E1E;transform:translateY(-1px);box-shadow:var(--shadow-2);}
.btn-primary:active{transform:translateY(0);}
.btn-outline{background:#fff;color:var(--brand-700);border:1px solid var(--brand-700);}
.btn-outline:hover{background:#EEF3FF;transform:translateY(-1px);}
.btn-ghost{background:rgba(255,255,255,.12);color:#fff;border:1px solid rgba(255,255,255,.72);}
.btn-ghost:hover{background:rgba(255,255,255,.22);transform:translateY(-1px);}
.btn:disabled{opacity:.4;cursor:not-allowed;transform:none;}

.chip{
  display:inline-flex;align-items:center;gap:6px;height:26px;padding:0 12px;border-radius:999px;
  font-size:13.5px;background:#EAF0FF;color:var(--brand-700);
}
.chip-accent{background:var(--accent-050);color:#B8430E;}

/* ---------- banner ---------- */
.page-banner{
  position:relative;
  min-height:300px;
  display:flex;align-items:center;
  background-image:linear-gradient(100deg,rgba(15,46,110,.94) 0%,rgba(15,46,110,.78) 46%,rgba(15,46,110,.42) 100%),url('/assets/images/backpic/back-1.png');
  background-size:cover;background-position:center;
}
.page-banner .wrap{width:100%;padding-top:52px;padding-bottom:52px;}
.crumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:rgba(255,255,255,.72);}
.crumb a:hover{color:#fff;text-decoration:underline;}
.crumb .sep{opacity:.6;}
.banner-title{font-size:34px;line-height:1.25;font-weight:700;color:#fff;margin-top:18px;max-width:760px;}
.banner-sub{font-size:15.5px;line-height:1.75;color:rgba(255,255,255,.84);margin-top:14px;max-width:660px;}
.banner-pills{display:flex;flex-wrap:wrap;gap:10px;margin-top:22px;}
.banner-pills span{
  display:inline-flex;align-items:center;gap:7px;height:28px;padding:0 14px;border-radius:999px;
  background:rgba(255,255,255,.14);border:1px solid rgba(255,255,255,.26);color:#fff;font-size:13px;
}

/* ---------- sections ---------- */
.section{padding:96px 0;}
.section-sm{padding:72px 0;}
.sec-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:36px;}
.sec-index{font-size:13px;font-weight:700;letter-spacing:.14em;color:var(--brand-500);}
.sec-title{font-size:32px;line-height:1.25;font-weight:700;color:var(--brand-700);margin-top:8px;position:relative;padding-left:16px;}
.sec-title::before{content:"";position:absolute;left:0;top:8px;bottom:8px;width:4px;border-radius:999px;background:var(--brand-700);}
.sec-desc{font-size:15px;line-height:1.75;color:var(--ink-2);max-width:520px;}

.split{display:grid;grid-template-columns:1fr;gap:32px;align-items:center;}
@media(min-width:1024px){.split{grid-template-columns:1.05fr 1fr;gap:56px;}}
.split p{color:var(--ink-2);font-size:16px;line-height:1.85;margin-top:16px;}
.point-list{margin-top:26px;display:flex;flex-direction:column;gap:2px;}
.point-list li{
  display:flex;gap:12px;align-items:flex-start;padding:14px 16px;border-radius:12px;font-size:15px;color:var(--ink);
}
.point-list li:nth-child(odd){background:rgba(228,233,245,.42);}
.point-list li i{color:var(--brand-500);margin-top:6px;font-size:13px;}
.figure{
  border-radius:var(--radius-lg);overflow:hidden;box-shadow:var(--shadow-1);
  aspect-ratio:4/3;background:var(--surface);
}
.figure img{width:100%;height:100%;object-fit:cover;}
.fig-cap{font-size:13px;color:var(--ink-3);margin-top:12px;text-align:center;}

.grid-2{display:grid;grid-template-columns:1fr;gap:24px;}
@media(min-width:768px){.grid-2{grid-template-columns:repeat(2,1fr);}}

.tile{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-sm);
  padding:24px;display:flex;flex-direction:column;gap:10px;
  transition:border-color .25s ease,box-shadow .25s ease;
}
.tile:hover{border-color:rgba(46,91,255,.34);box-shadow:var(--shadow-2);}
.tile-icon{
  width:44px;height:44px;border-radius:13px;display:flex;align-items:center;justify-content:center;
  background:#EAF0FF;color:var(--brand-700);font-size:17px;
}
.tile h3{font-size:19px;font-weight:600;color:var(--ink);}
.tile p{font-size:14.5px;line-height:1.75;color:var(--ink-2);}
.tile-link{font-size:14px;font-weight:600;color:var(--brand-500);display:inline-flex;align-items:center;gap:6px;margin-top:2px;}
.tile-link:hover{color:var(--accent-500);}
.tile-link i{font-size:12px;transition:transform .2s ease;}
.tile:hover .tile-link i{transform:translateX(3px);}

.row-list{display:flex;flex-direction:column;gap:2px;border-radius:var(--radius-sm);overflow:hidden;}
.row-item{
  display:grid;grid-template-columns:1fr;gap:4px;padding:18px 20px;background:var(--surface);
  border-left:4px solid transparent;transition:background .2s ease,border-color .2s ease;
}
.row-item:nth-child(even){background:#F8FAFF;}
.row-item:hover{background:var(--bg);border-left-color:var(--brand-500);}
@media(min-width:768px){
  .row-item{grid-template-columns:200px 1fr;gap:20px;align-items:center;}
}
.row-label{font-size:14.5px;font-weight:600;color:var(--brand-700);}
.row-text{font-size:15px;color:var(--ink-2);line-height:1.8;}

/* ---------- faq ---------- */
.faq-wrap{max-width:800px;margin:0 auto;display:flex;flex-direction:column;gap:14px;}
.faq-item{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-sm);overflow:hidden;transition:border-color .25s ease,box-shadow .25s ease;}
.faq-item.open{border-color:rgba(46,91,255,.34);box-shadow:var(--shadow-1);}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:20px 22px;text-align:left;font-size:16px;font-weight:600;color:var(--ink);
}
.faq-q:hover{color:var(--brand-700);}
.faq-icon{
  flex:0 0 auto;width:26px;height:26px;border-radius:999px;background:#EAF0FF;color:var(--brand-700);
  display:flex;align-items:center;justify-content:center;font-size:12px;transition:background .25s ease,color .25s ease;
}
.faq-item.open .faq-icon{background:var(--accent-500);color:#fff;}
.faq-a{max-height:0;overflow:hidden;transition:max-height .3s ease;}
.faq-a p{padding:0 22px 22px;font-size:15px;line-height:1.85;color:var(--ink-2);}

/* ---------- cta ---------- */
.cta-band{background:var(--brand-900);border-radius:var(--radius-lg);padding:40px 32px;}
@media(min-width:1024px){.cta-band{padding:48px 56px;}}
.cta-inner{display:flex;flex-direction:column;gap:24px;align-items:flex-start;justify-content:space-between;}
@media(min-width:1024px){.cta-inner{flex-direction:row;align-items:center;}}
.cta-band h2{font-size:26px;font-weight:700;color:#fff;line-height:1.3;}
.cta-band p{font-size:15px;color:rgba(255,255,255,.76);margin-top:10px;max-width:560px;}
.cta-actions{display:flex;flex-wrap:wrap;gap:12px;}

/* ---------- footer ---------- */
.site-footer{background:var(--brand-900);color:#C7D2EA;margin-top:96px;}
.footer-grid{display:grid;grid-template-columns:1fr;gap:36px;}
@media(min-width:768px){.footer-grid{grid-template-columns:repeat(2,1fr);}}
@media(min-width:1024px){.footer-grid{grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:40px;}}
.footer-logo{display:flex;align-items:center;gap:10px;margin-bottom:16px;}
.footer-logo .logo-mark{background:rgba(255,255,255,.14);}
.footer-logo .logo-text{color:#fff;}
.footer-desc{font-size:14px;line-height:1.8;color:#C7D2EA;max-width:320px;}
.footer-status{
  display:inline-flex;align-items:center;gap:8px;margin-top:16px;height:26px;padding:0 12px;
  border-radius:999px;background:rgba(34,211,197,.14);color:#7FF0E5;font-size:13px;
}
.footer-title{font-size:14px;font-weight:600;color:#fff;margin-bottom:14px;letter-spacing:.02em;}
.footer-link{display:block;font-size:14px;color:#C7D2EA;padding:6px 0;transition:color .2s ease;}
.footer-link:hover{color:#fff;text-decoration:underline;}
.footer-label{display:block;font-size:13.5px;color:#C7D2EA;margin-bottom:10px;}
.footer-input{
  width:100%;height:46px;border-radius:12px;border:1px solid rgba(255,255,255,.22);
  background:rgba(255,255,255,.06);color:#fff;padding:0 14px;font-size:14.5px;
}
.footer-input::placeholder{color:rgba(199,210,234,.7);}
.footer-input:focus{outline:none;border-color:var(--brand-500);box-shadow:0 0 0 4px rgba(46,91,255,.14);}
.footer-bottom{
  margin-top:44px;padding-top:20px;border-top:1px solid rgba(255,255,255,.12);
  display:flex;flex-direction:column;gap:10px;font-size:13px;color:#9FB0D4;
}
@media(min-width:768px){.footer-bottom{flex-direction:row;align-items:center;justify-content:space-between;}}

@media(max-width:1023px){
  .section{padding:72px 0;}
  .banner-title{font-size:28px;}
  .sec-title{font-size:27px;}
  .page-banner{min-height:280px;}
}
@media(max-width:639px){
  .section{padding:56px 0;}
  .section-sm{padding:48px 0;}
  .banner-title{font-size:23px;}
  .banner-sub{font-size:14.5px;}
  .sec-title{font-size:23px;}
  .sec-head{flex-direction:column;align-items:flex-start;margin-bottom:26px;}
  .footer-grid{gap:28px;}
  .btn{width:100%;}
  .cta-actions{width:100%;}
  .btn-sm{width:auto;}
}

/* roulang page: article */
:root{
  --brand-900:#0F2E6E;
  --brand-700:#143A8C;
  --brand-500:#2E5BFF;
  --accent-500:#FF6A2A;
  --accent-050:#FFF1E8;
  --mint-500:#22D3C5;
  --bg:#F5F7FC;
  --surface:#FFFFFF;
  --line:#E4E9F5;
  --ink:#1A2238;
  --ink-2:#5A6785;
  --ink-3:#8A96B2;
  --r-sm:12px;
  --r-md:14px;
  --r-lg:20px;
  --sh-1:0 1px 2px rgba(20,35,90,.06), 0 8px 24px -12px rgba(20,35,90,.14);
  --sh-2:0 14px 34px -14px rgba(20,35,90,.22);
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--bg);
  color:var(--ink);
  font-family:system-ui,-apple-system,"PingFang SC","HarmonyOS Sans","Microsoft YaHei","Source Han Sans SC",sans-serif;
  font-size:16px;
  line-height:1.85;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;}
a{color:inherit;text-decoration:none;}
button,input{font-family:inherit;}
h1,h2,h3,h4{margin:0;text-wrap:balance;}
p{margin:0;}
.num{font-variant-numeric:tabular-nums;}
.wrap{max-width:1200px;margin:0 auto;padding-left:20px;padding-right:20px;}
@media (min-width:768px){.wrap{padding-left:32px;padding-right:32px;}}

/* ---------- header ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(255,255,255,.92);
  backdrop-filter:blur(8px);
  border-bottom:1px solid transparent;
  transition:box-shadow .25s ease,border-color .25s ease,background .25s ease;
}
.site-header.scrolled{border-bottom-color:var(--line);box-shadow:0 6px 22px -16px rgba(20,35,90,.45);}
.nav-bar{display:flex;align-items:center;justify-content:space-between;gap:14px;height:72px;transition:height .25s ease;}
.site-header.scrolled .nav-bar{height:60px;}
.logo-mark{
  width:36px;height:36px;flex:none;border-radius:11px;
  background:linear-gradient(135deg,var(--brand-700),var(--brand-500));
  color:#fff;font-size:18px;font-weight:700;display:grid;place-items:center;
}
.logo-text{font-size:17px;font-weight:700;color:var(--brand-700);white-space:nowrap;letter-spacing:-.2px;}
.nav-link{
  position:relative;padding:8px 12px;border-radius:10px;font-size:15px;
  color:var(--ink-2);transition:color .2s ease,background .2s ease;
}
.nav-link:hover{color:var(--brand-700);background:var(--bg);font-weight:600;}
.nav-link.active{color:var(--brand-700);font-weight:600;}
.nav-link.active::after{
  content:"";position:absolute;left:12px;right:12px;bottom:-4px;height:3px;
  border-radius:3px;background:var(--brand-700);
}
.status-pill{
  display:inline-flex;align-items:center;gap:7px;font-size:13px;color:var(--ink-2);
  background:#fff;border:1px solid var(--line);border-radius:999px;padding:6px 12px;white-space:nowrap;
}
.dot{width:8px;height:8px;border-radius:50%;background:var(--mint-500);box-shadow:0 0 0 4px rgba(34,211,197,.18);}
.countdown-pill{
  display:inline-flex;align-items:center;gap:6px;font-size:13px;color:#fff;
  background:var(--accent-500);border-radius:999px;padding:6px 12px;white-space:nowrap;
}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:46px;padding:0 22px;border-radius:999px;border:1px solid transparent;
  font-size:15px;font-weight:600;cursor:pointer;
  transition:transform .2s ease,box-shadow .2s ease,filter .2s ease,background .2s ease,color .2s ease,border-color .2s ease;
}
.btn-sm{height:38px;padding:0 18px;font-size:14px;}
.btn-primary{background:var(--accent-500);color:#fff;}
.btn-primary:hover{filter:brightness(.94);transform:translateY(-1px);box-shadow:var(--sh-2);}
.btn-primary:active{transform:none;}
.btn-outline{background:#fff;color:var(--brand-700);border-color:var(--line);}
.btn-outline:hover{border-color:rgba(46,91,255,.4);transform:translateY(-1px);box-shadow:var(--sh-1);}
.btn:focus-visible,a:focus-visible,input:focus-visible,summary:focus-visible{
  outline:2px solid var(--brand-500);outline-offset:2px;
}
.burger{
  width:42px;height:42px;border-radius:12px;border:1px solid var(--line);
  background:#fff;color:var(--brand-700);display:grid;place-items:center;cursor:pointer;
}
.mobile-panel{
  position:fixed;inset:0;z-index:80;background:#fff;
  display:flex;flex-direction:column;
  transform:translateX(100%);visibility:hidden;transition:transform .3s ease,visibility .3s ease;
}
.mobile-panel.open{transform:translateX(0);visibility:visible;}
.mobile-panel-head{display:flex;align-items:center;justify-content:space-between;padding:16px 20px;border-bottom:1px solid var(--line);}
.mobile-nav{padding:8px 20px;flex:1;overflow-y:auto;}
.mobile-nav a{display:flex;align-items:center;height:48px;font-size:16px;color:var(--ink);border-bottom:1px solid var(--line);}
.mobile-nav a.active{color:var(--brand-700);font-weight:600;}
.mobile-panel-foot{padding:20px;border-top:1px solid var(--line);display:flex;flex-direction:column;gap:12px;}

/* ---------- breadcrumb ---------- */
.crumb{padding:22px 0 0;font-size:13px;color:var(--ink-3);display:flex;flex-wrap:wrap;align-items:center;gap:8px;}
.crumb a{color:var(--ink-2);}
.crumb a:hover{color:var(--brand-500);}
.crumb .sep{color:#C3CBDD;}
.crumb .here{color:var(--ink-3);}

/* ---------- article head ---------- */
.article-head{padding:18px 0 0;}
.article-head h1{
  font-size:clamp(28px,5vw,48px);line-height:1.18;font-weight:700;color:var(--brand-700);
  max-width:900px;
}
.meta-row{display:flex;flex-wrap:wrap;align-items:center;gap:10px 14px;margin-top:16px;font-size:13px;color:var(--ink-3);}
.chip{
  display:inline-flex;align-items:center;gap:6px;height:26px;padding:0 12px;border-radius:999px;
  font-size:14px;line-height:1;
}
.chip-cat{background:#E9EEFC;color:var(--brand-700);font-weight:600;}
.chip-mint{background:rgba(34,211,197,.14);color:#0E8C82;}
.chip-accent{background:var(--accent-050);color:#C24A12;font-weight:600;}
.hero-cover{margin-top:26px;border-radius:var(--r-lg);overflow:hidden;background:#E8EDF8;aspect-ratio:16/9;box-shadow:var(--sh-1);}
.hero-cover img{width:100%;height:100%;object-fit:cover;}
.fig-cap{margin-top:10px;font-size:13px;color:var(--ink-3);}

/* ---------- article layout ---------- */
.article-layout{
  display:grid;grid-template-columns:minmax(0,1fr) 268px;
  gap:40px;padding:40px 0 8px;align-items:start;
}
.article-main{min-width:0;}
.article-panel{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-lg);
  padding:28px 26px;box-shadow:var(--sh-1);
}
@media (min-width:768px){.article-panel{padding:40px 44px;}}
.article-body{max-width:760px;font-size:17px;line-height:1.9;color:var(--ink);}
.article-body > * + *{margin-top:1em;}
.article-body h2{
  position:relative;font-size:24px;line-height:1.4;font-weight:700;color:var(--brand-700);
  margin-top:2em;padding-left:14px;border-left:4px solid var(--brand-700);scroll-margin-top:92px;
}
.article-body h3{font-size:20px;line-height:1.45;font-weight:600;margin-top:1.6em;color:var(--ink);scroll-margin-top:92px;}
.article-body h4{font-size:17px;font-weight:600;margin-top:1.4em;}
.article-body a{color:var(--brand-500);text-decoration:underline;text-underline-offset:3px;}
.article-body a:hover{color:var(--brand-700);}
.article-body ul,.article-body ol{padding-left:1.35em;}
.article-body li + li{margin-top:.45em;}
.article-body blockquote{
  margin:1.4em 0;padding:16px 20px;background:#F0F4FF;
  border-left:3px solid var(--brand-700);border-radius:0 12px 12px 0;color:var(--ink-2);
}
.article-body blockquote p{margin:0;}
.article-body img{border-radius:12px;margin:1.4em 0;height:auto;}
.article-body figure{margin:1.6em 0;}
.article-body figcaption{font-size:13px;color:var(--ink-3);margin-top:8px;text-align:center;}
.article-body hr{border:0;border-top:1px solid var(--line);margin:2em 0;}
.article-body table{width:100%;border-collapse:collapse;margin:1.5em 0;font-size:15px;background:#fff;}
.article-body th{background:#F0F4FF;color:var(--brand-700);text-align:left;}
.article-body th,.article-body td{padding:12px 14px;border-bottom:1px solid var(--line);}
.article-body tbody tr:nth-child(even){background:#FAFBFE;}
.article-body code{background:#F0F4FF;color:var(--brand-700);padding:2px 6px;border-radius:6px;font-size:.92em;}

/* ---------- sidebar toc ---------- */
.toc-aside{position:sticky;top:92px;}
.toc-card{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-md);
  padding:18px 18px 14px;box-shadow:var(--sh-1);
}
.toc-title{font-size:13px;font-weight:600;color:var(--ink-3);letter-spacing:.06em;margin-bottom:10px;}
.toc-list{display:flex;flex-direction:column;}
.toc-list a{
  display:block;padding:9px 10px;border-radius:10px;font-size:14px;color:var(--ink-2);
  border-left:3px solid transparent;transition:background .2s ease,color .2s ease,border-color .2s ease;
}
.toc-list a:hover{background:var(--bg);color:var(--brand-700);}
.toc-list a.is-current{background:var(--bg);color:var(--brand-700);font-weight:600;border-left-color:var(--brand-700);}
.toc-list a.sub{padding-left:22px;font-size:13.5px;}
.toc-note{margin-top:14px;padding-top:14px;border-top:1px solid var(--line);font-size:13px;color:var(--ink-3);line-height:1.7;}
.toc-mobile{display:none;margin-top:24px;}
.toc-mobile summary{
  list-style:none;cursor:pointer;display:flex;align-items:center;justify-content:space-between;
  padding:14px 16px;background:#fff;border:1px solid var(--line);border-radius:var(--r-sm);
  font-size:15px;font-weight:600;color:var(--brand-700);
}
.toc-mobile summary::-webkit-details-marker{display:none;}
.toc-mobile summary::after{content:"＋";color:var(--ink-3);font-weight:400;}
.toc-mobile[open] summary::after{content:"－";}
.toc-mobile .toc-list{padding:8px 8px 12px;background:#fff;border:1px solid var(--line);border-top:0;border-radius:0 0 var(--r-sm) var(--r-sm);}
@media (max-width:1023px){
  .article-layout{grid-template-columns:1fr;gap:0;}
  .toc-aside{display:none;}
  .toc-mobile{display:block;}
  .article-body{max-width:none;font-size:16.5px;}
}
@media (max-width:639px){
  .article-panel{padding:22px 18px;border-radius:var(--r-md);}
  .article-body{font-size:16px;line-height:1.85;}
  .article-body h2{font-size:21px;}
  .article-body h3{font-size:18.5px;}
}

/* ---------- empty ---------- */
.empty-state{
  border:1.5px dashed #C9D4EC;border-radius:var(--r-md);padding:44px 24px;text-align:center;background:#FBFCFE;
}
.empty-state i{font-size:28px;color:var(--ink-3);}
.empty-state h2{font-size:20px;color:var(--brand-700);margin-top:14px;}
.empty-state p{color:var(--ink-2);margin-top:8px;font-size:15px;}
.empty-state .btn{margin-top:20px;}

/* ---------- section base ---------- */
.section{padding:72px 0;}
@media (min-width:768px){.section{padding:88px 0;}}
.sec-head{display:flex;flex-wrap:wrap;align-items:flex-end;justify-content:space-between;gap:12px;margin-bottom:26px;}
.sec-title{font-size:clamp(22px,3vw,30px);font-weight:700;color:var(--brand-700);}
.sec-sub{font-size:15px;color:var(--ink-2);margin-top:8px;max-width:620px;}
.sec-more{font-size:14px;color:var(--brand-500);font-weight:600;}
.sec-more:hover{color:var(--brand-700);}

/* ---------- related cards ---------- */
.card-grid{display:grid;grid-template-columns:1fr;gap:16px;}
@media (min-width:640px){.card-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:20px;}}
@media (min-width:1024px){.card-grid{grid-template-columns:repeat(3,minmax(0,1fr));gap:24px;}}
.rel-card{
  display:block;background:var(--surface);border:1px solid var(--line);border-radius:var(--r-md);
  overflow:hidden;box-shadow:var(--sh-1);
  transition:border-color .3s ease,box-shadow .3s ease,transform .3s ease;
}
.rel-card:hover{border-color:rgba(46,91,255,.24);box-shadow:var(--sh-2);transform:translateY(-2px);}
.rel-thumb{aspect-ratio:16/9;overflow:hidden;background:#E8EDF8;}
.rel-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .3s ease;}
.rel-card:hover .rel-thumb img{transform:scale(1.04);}
.rel-body{padding:18px;}
.rel-body h3{font-size:18px;font-weight:600;color:var(--ink);line-height:1.4;}
.rel-body p{font-size:14.5px;color:var(--ink-2);margin-top:8px;line-height:1.7;}
.rel-meta{margin-top:14px;display:flex;align-items:center;justify-content:space-between;font-size:13px;color:var(--ink-3);}

/* ---------- faq ---------- */
.faq-wrap{max-width:820px;margin:0 auto;display:flex;flex-direction:column;gap:14px;}
.faq-item{background:#fff;border:1px solid var(--line);border-radius:var(--r-md);box-shadow:var(--sh-1);overflow:hidden;}
.faq-item summary{
  list-style:none;cursor:pointer;display:flex;align-items:flex-start;justify-content:space-between;gap:16px;
  padding:18px 20px;font-size:16px;font-weight:600;color:var(--ink);transition:color .2s ease;
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary::after{content:"＋";color:var(--brand-500);font-weight:400;flex:none;transition:transform .3s ease;}
.faq-item[open] summary::after{transform:rotate(45deg);}
.faq-item summary:hover{color:var(--brand-700);}
.faq-body{padding:0 20px 20px;font-size:15px;color:var(--ink-2);line-height:1.8;}

/* ---------- cta ---------- */
.cta-bar{
  background:var(--brand-900);color:#fff;border-radius:var(--r-lg);
  padding:34px 28px;display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:22px;
}
@media (min-width:768px){.cta-bar{padding:44px 48px;}}
.cta-bar h2{font-size:clamp(21px,3vw,28px);font-weight:700;color:#fff;}
.cta-bar p{font-size:15px;color:#C7D2EA;margin-top:10px;max-width:560px;}
.cta-bar .btn-primary{flex:none;}

/* ---------- prev / next ---------- */
.nav-strip{
  display:grid;grid-template-columns:1fr;gap:14px;margin-top:36px;
}
@media (min-width:768px){.nav-strip{grid-template-columns:repeat(2,minmax(0,1fr));}}
.nav-strip a{
  display:flex;align-items:center;gap:14px;background:#fff;border:1px solid var(--line);
  border-radius:var(--r-md);padding:16px 18px;box-shadow:var(--sh-1);
  transition:border-color .25s ease,box-shadow .25s ease,background .25s ease;
}
.nav-strip a:hover{border-color:rgba(46,91,255,.24);box-shadow:var(--sh-2);background:#FBFCFE;}
.nav-strip .ic{width:40px;height:40px;flex:none;border-radius:12px;background:#E9EEFC;color:var(--brand-700);display:grid;place-items:center;}
.nav-strip strong{display:block;font-size:15px;color:var(--ink);}
.nav-strip span{font-size:13px;color:var(--ink-3);}

/* ---------- footer ---------- */
.site-footer{background:var(--brand-900);color:#C7D2EA;margin-top:40px;}
.footer-grid{display:grid;grid-template-columns:1fr;gap:32px;}
@media (min-width:640px){.footer-grid{grid-template-columns:repeat(2,minmax(0,1fr));}}
@media (min-width:1024px){.footer-grid{grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:40px;}}
.footer-logo{display:flex;align-items:center;gap:10px;}
.footer-logo .logo-text{color:#fff;}
.footer-desc{font-size:14px;line-height:1.8;margin-top:14px;color:#C7D2EA;max-width:320px;}
.footer-status{
  display:inline-flex;align-items:center;gap:8px;margin-top:16px;font-size:13px;color:#9DE7DF;
  background:rgba(34,211,197,.12);border-radius:999px;padding:6px 13px;
}
.footer-title{font-size:14px;font-weight:600;color:#fff;margin-bottom:14px;letter-spacing:.02em;}
.footer-link{display:block;font-size:14px;color:#C7D2EA;padding:5px 0;transition:color .2s ease;}
.footer-link:hover{color:#fff;text-decoration:underline;}
.footer-label{display:block;font-size:14px;color:#C7D2EA;margin-bottom:10px;}
.footer-input{
  width:100%;height:46px;border-radius:12px;border:1px solid rgba(255,255,255,.18);
  background:rgba(255,255,255,.06);color:#fff;padding:0 14px;font-size:14px;
  transition:border-color .2s ease,box-shadow .2s ease;
}
.footer-input::placeholder{color:#8FA0C6;}
.footer-input:focus{outline:none;border-color:var(--brand-500);box-shadow:0 0 0 4px rgba(46,91,255,.18);}
.footer-bottom{
  margin-top:36px;padding-top:20px;border-top:1px solid rgba(255,255,255,.12);
  display:flex;flex-wrap:wrap;gap:10px;justify-content:space-between;font-size:13px;color:#9FB0D6;
}

/* roulang page: category2 */
:root{
  --brand-900:#0F2E6E;
  --brand-700:#143A8C;
  --brand-500:#2E5BFF;
  --accent-500:#FF6A2A;
  --accent-050:#FFF1E8;
  --mint-500:#22D3C5;
  --bg:#F5F7FC;
  --surface:#FFFFFF;
  --line:#E4E9F5;
  --ink:#1A2238;
  --ink-2:#5A6785;
  --ink-3:#8A96B2;
  --r-sm:14px;
  --r-lg:20px;
  --r-pill:999px;
  --sh-1:0 1px 2px rgba(20,35,90,.06), 0 8px 24px -12px rgba(20,35,90,.14);
  --sh-2:0 14px 34px -14px rgba(20,35,90,.22);
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--bg);
  color:var(--ink);
  font-family:system-ui,-apple-system,"PingFang SC","HarmonyOS Sans","Microsoft YaHei","Source Han Sans SC",sans-serif;
  font-size:16px;
  line-height:1.85;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;}
a{color:inherit;text-decoration:none;}
button,input{font-family:inherit;}
h1,h2,h3,h4{margin:0;line-height:1.3;font-weight:700;}
p{margin:0;}
ul,ol{margin:0;padding:0;list-style:none;}
:focus-visible{outline:2px solid var(--brand-500);outline-offset:2px;border-radius:6px;}
.wrap{max-width:1200px;margin:0 auto;padding-left:20px;padding-right:20px;}
@media(min-width:768px){.wrap{padding-left:32px;padding-right:32px;}}

/* ---------- 顶栏 ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(255,255,255,.94);
  -webkit-backdrop-filter:saturate(180%) blur(8px);
  backdrop-filter:saturate(180%) blur(8px);
  border-bottom:1px solid transparent;
  transition:box-shadow .3s ease,border-color .3s ease;
}
.site-header.scrolled{border-bottom-color:var(--line);box-shadow:var(--sh-1);}
.nav-bar{display:flex;align-items:center;justify-content:space-between;gap:16px;height:72px;transition:height .3s ease;}
.site-header.scrolled .nav-bar{height:60px;}
.logo-mark{
  width:36px;height:36px;flex:0 0 36px;border-radius:12px;
  background:var(--brand-700);color:#fff;
  display:flex;align-items:center;justify-content:center;
  font-size:17px;font-weight:700;
}
.logo-text{font-size:17px;font-weight:700;color:var(--brand-700);letter-spacing:.4px;white-space:nowrap;}
.nav-link{
  position:relative;padding:8px 14px;border-radius:10px;
  font-size:15px;color:var(--ink-2);transition:color .2s ease,background .2s ease,font-weight .2s ease;
  white-space:nowrap;
}
.nav-link:hover{color:var(--brand-700);background:var(--bg);font-weight:600;}
.nav-link.active{color:var(--brand-700);font-weight:600;}
.nav-link.active::after{
  content:"";position:absolute;left:14px;right:14px;bottom:0;height:3px;
  border-radius:3px;background:var(--brand-700);
}
.status-pill{
  display:inline-flex;align-items:center;gap:7px;
  height:26px;padding:0 12px;border-radius:var(--r-pill);
  background:rgba(34,211,197,.14);color:#0E8F86;
  font-size:13px;white-space:nowrap;
}
.status-pill .dot{
  width:8px;height:8px;border-radius:50%;background:var(--mint-500);
  box-shadow:0 0 0 4px rgba(34,211,197,.20);
}
@keyframes pulse{0%,100%{opacity:1;}50%{opacity:.45;}}
.status-pill .dot{animation:pulse 2.2s ease-in-out infinite;}
.countdown-pill{
  display:inline-flex;align-items:center;gap:6px;
  height:26px;padding:0 12px;border-radius:var(--r-pill);
  background:var(--accent-500);color:#fff;font-size:13px;
  font-variant-numeric:tabular-nums;white-space:nowrap;
}
.countdown-pill .num{font-weight:700;}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:46px;padding:0 22px;border-radius:var(--r-pill);
  font-size:15px;font-weight:600;line-height:1;
  border:1px solid transparent;cursor:pointer;
  transition:transform .2s ease,box-shadow .2s ease,background .2s ease,border-color .2s ease,color .2s ease,filter .2s ease;
  white-space:nowrap;
}
.btn:active{transform:translateY(0);}
.btn-sm{height:38px;padding:0 18px;font-size:14px;}
.btn-primary{background:var(--accent-500);color:#fff;box-shadow:0 10px 22px -12px rgba(255,106,42,.85);}
.btn-primary:hover{filter:brightness(.94);transform:translateY(-1px);box-shadow:var(--sh-2);}
.btn-ghost{background:#fff;color:var(--brand-700);border-color:var(--line);}
.btn-ghost:hover{border-color:rgba(20,58,140,.45);transform:translateY(-1px);box-shadow:var(--sh-1);}
.btn-outline-light{background:transparent;color:#fff;border-color:rgba(255,255,255,.6);}
.btn-outline-light:hover{background:rgba(255,255,255,.14);transform:translateY(-1px);}
.btn[disabled]{opacity:.4;cursor:not-allowed;}

/* ---------- 汉堡与抽屉 ---------- */
.burger{
  width:42px;height:42px;border-radius:12px;border:1px solid var(--line);
  background:#fff;color:var(--brand-700);font-size:17px;cursor:pointer;
  display:inline-flex;align-items:center;justify-content:center;
}
.burger:hover{background:var(--bg);}
.drawer{
  position:fixed;inset:0;z-index:90;background:#fff;
  display:flex;flex-direction:column;
  padding:16px 20px 24px;overflow-y:auto;
  transform:translateY(-100%);transition:transform .32s ease;
}
.drawer.open{transform:translateY(0);}
.drawer-head{display:flex;align-items:center;justify-content:space-between;height:56px;}
.drawer-nav{margin-top:12px;border-top:1px solid var(--line);}
.drawer-link{
  display:flex;align-items:center;justify-content:space-between;
  height:52px;border-bottom:1px solid var(--line);
  font-size:16px;color:var(--ink);
}
.drawer-link.active{color:var(--brand-700);font-weight:600;}
.drawer-foot{margin-top:auto;padding-top:24px;display:flex;flex-direction:column;gap:14px;}
body.lock{overflow:hidden;}

/* ---------- 分类页 Hero ---------- */
.hero-c{position:relative;overflow:hidden;background:var(--brand-900);}
.hero-c-bg{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;opacity:.5;}
.hero-c-mask{
  position:absolute;inset:0;
  background:
    radial-gradient(120% 90% at 20% 0%,rgba(15,46,110,.92) 0%,rgba(15,46,110,.72) 45%,rgba(15,46,110,.55) 100%),
    linear-gradient(180deg,rgba(15,46,110,.85) 0%,rgba(20,58,140,.72) 100%);
}
.hero-c-inner{position:relative;z-index:2;text-align:center;padding-top:84px;padding-bottom:76px;}
.hero-c h1{
  margin:20px auto 0;max-width:900px;
  font-size:clamp(30px,4.4vw,50px);line-height:1.15;color:#fff;letter-spacing:.5px;
}
.hero-sub{margin:18px auto 0;max-width:640px;color:rgba(255,255,255,.86);font-size:17px;line-height:1.75;}
.hero-actions{margin-top:32px;display:flex;flex-wrap:wrap;gap:14px;justify-content:center;}
.hero-meta{
  margin-top:34px;display:flex;flex-wrap:wrap;gap:12px 26px;justify-content:center;
  color:rgba(255,255,255,.82);font-size:14px;
}
.hero-meta li{display:inline-flex;align-items:center;gap:8px;}
.hero-meta i{color:var(--mint-500);}

/* ---------- 通用区块 ---------- */
.sec{padding:96px 0;}
@media(max-width:1023px){.sec{padding:72px 0;}}
@media(max-width:639px){.sec{padding:56px 0;}}
.sec-head{max-width:800px;margin-bottom:44px;}
.sec-head.center{margin-left:auto;margin-right:auto;text-align:center;}
.sec-num{
  display:inline-block;font-size:13px;font-weight:600;letter-spacing:.2em;
  color:var(--brand-500);margin-bottom:12px;font-variant-numeric:tabular-nums;
}
.sec-title{
  position:relative;padding-left:16px;
  font-size:clamp(23px,2.6vw,32px);line-height:1.3;color:var(--brand-700);
}
.sec-title::before{
  content:"";position:absolute;left:0;top:6px;bottom:6px;width:4px;
  border-radius:2px;background:var(--brand-700);
}
.sec-head.center .sec-title{padding-left:0;}
.sec-head.center .sec-title::before{display:none;}
.sec-desc{margin-top:14px;color:var(--ink-2);font-size:15px;line-height:1.8;}
.chip{
  display:inline-flex;align-items:center;gap:6px;
  height:26px;padding:0 12px;border-radius:var(--r-pill);
  background:rgba(46,91,255,.10);color:var(--brand-700);
  font-size:13px;font-weight:500;
}
.chip-light{background:rgba(255,255,255,.16);color:#fff;border:1px solid rgba(255,255,255,.28);}
.chip-accent{background:var(--accent-050);color:#C2451A;}

/* ---------- 流程 ---------- */
.flow{max-width:820px;margin:0 auto;display:flex;flex-direction:column;gap:20px;}
.flow-item{position:relative;display:grid;grid-template-columns:64px 1fr;gap:22px;}
.flow-item:not(:last-child)::before{
  content:"";position:absolute;left:32px;top:70px;bottom:-16px;width:2px;
  background:linear-gradient(180deg,rgba(46,91,255,.38),rgba(46,91,255,.06));
}
.flow-num{
  width:64px;height:64px;border-radius:20px;background:#fff;
  border:1px solid var(--line);box-shadow:var(--sh-1);
  display:flex;align-items:center;justify-content:center;
  font-size:22px;font-weight:700;color:var(--brand-700);
  font-variant-numeric:tabular-nums;
}
.flow-body{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-lg);
  padding:20px 22px;box-shadow:var(--sh-1);transition:box-shadow .25s ease,border-color .25s ease,transform .25s ease;
}
.flow-body:hover{border-color:rgba(20,58,140,.28);box-shadow:var(--sh-2);transform:translateY(-2px);}
.flow-body h3{font-size:19px;font-weight:600;color:var(--ink);}
.flow-body p{margin-top:8px;font-size:15px;line-height:1.8;color:var(--ink-2);}
.flow-tip{
  margin-top:12px;display:inline-flex;align-items:center;gap:8px;
  font-size:13px;color:var(--brand-700);background:rgba(46,91,255,.08);
  border-radius:var(--r-pill);padding:5px 12px;
}
@media(max-width:639px){
  .flow-item{grid-template-columns:48px 1fr;gap:16px;}
  .flow-num{width:48px;height:48px;border-radius:16px;font-size:18px;}
  .flow-item:not(:last-child)::before{left:24px;top:54px;bottom:-14px;}
  .flow-body{padding:16px 18px;}
}

/* ---------- 图文两栏 ---------- */
.split{display:grid;grid-template-columns:1fr 1fr;gap:56px;align-items:center;}
@media(max-width:1023px){.split{grid-template-columns:1fr;gap:32px;}}
.split-media img{
  width:100%;aspect-ratio:4/3;object-fit:cover;
  border-radius:var(--r-lg);box-shadow:var(--sh-1);
}
.check-list{display:flex;flex-direction:column;gap:14px;margin-top:24px;}
.check-list li{
  display:grid;grid-template-columns:28px 1fr;gap:12px;align-items:start;
  background:var(--bg);border:1px solid var(--line);border-radius:var(--r-sm);
  padding:14px 16px;font-size:15px;line-height:1.75;color:var(--ink-2);
  transition:background .2s ease,border-color .2s ease;
}
.check-list li:hover{background:#fff;border-color:rgba(20,58,140,.25);}
.check-list i{color:var(--mint-500);font-size:16px;margin-top:5px;}

/* ---------- 对照卡片行 ---------- */
.compare-list{display:flex;flex-direction:column;gap:12px;max-width:960px;margin:0 auto;}
.compare-row{
  display:grid;grid-template-columns:250px 1fr;gap:26px;align-items:start;
  background:var(--surface);border:1px solid var(--line);border-left:4px solid transparent;
  border-radius:var(--r-sm);padding:20px 22px;box-shadow:var(--sh-1);
  transition:border-color .25s ease,box-shadow .25s ease,transform .25s ease;
}
.compare-row:hover{border-left-color:var(--brand-700);box-shadow:var(--sh-2);transform:translateY(-2px);}
.compare-label{font-size:15px;font-weight:600;color:var(--brand-700);}
.compare-desc{font-size:15px;line-height:1.8;color:var(--ink-2);}
@media(max-width:767px){
  .compare-row{grid-template-columns:1fr;gap:8px;padding:18px;}
}

/* ---------- FAQ ---------- */
.faq-wrap{max-width:800px;margin:0 auto;display:flex;flex-direction:column;gap:12px;}
.faq-item{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-sm);
  overflow:hidden;transition:border-color .25s ease,box-shadow .25s ease;
}
.faq-item.open{border-color:rgba(20,58,140,.35);box-shadow:var(--sh-1);}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:18px 20px;background:none;border:0;cursor:pointer;text-align:left;
  font-size:16px;font-weight:600;color:var(--ink);
}
.faq-q:hover{color:var(--brand-700);}
.faq-q .ico{color:var(--brand-500);font-size:14px;transition:transform .3s ease,color .3s ease;flex:0 0 auto;}
.faq-item.open .faq-q .ico{transform:rotate(45deg);color:var(--accent-500);}
.faq-a{max-height:0;overflow:hidden;transition:max-height .3s ease,padding .3s ease;padding:0 20px;}
.faq-item.open .faq-a{max-height:420px;padding-bottom:18px;}
.faq-a p{font-size:15px;line-height:1.85;color:var(--ink-2);}

/* ---------- 底部 CTA ---------- */
.cta-band{
  background:var(--brand-900);border-radius:var(--r-lg);
  padding:40px 44px;display:flex;align-items:center;justify-content:space-between;
  gap:30px;flex-wrap:wrap;position:relative;overflow:hidden;
}
.cta-band::after{
  content:"";position:absolute;right:-60px;top:-70px;width:240px;height:240px;
  border-radius:50%;background:radial-gradient(circle,rgba(255,106,42,.35),transparent 70%);
}
.cta-band h2{color:#fff;font-size:clamp(21px,2.2vw,26px);}
.cta-band p{margin-top:10px;color:rgba(255,255,255,.78);font-size:15px;line-height:1.8;max-width:620px;}
.cta-actions{display:flex;gap:14px;flex-wrap:wrap;position:relative;z-index:2;}
@media(max-width:639px){.cta-band{padding:28px 22px;}}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--brand-900);color:#fff;}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.3fr;gap:40px;}
@media(max-width:1023px){.footer-grid{grid-template-columns:1fr 1fr;gap:34px;}}
@media(max-width:639px){.footer-grid{grid-template-columns:1fr;gap:28px;}}
.footer-logo{display:flex;align-items:center;gap:10px;}
.site-footer .logo-mark{background:rgba(255,255,255,.14);}
.site-footer .logo-text{color:#fff;}
.footer-desc{color:#C7D2EA;font-size:14px;line-height:1.85;margin:14px 0 16px;max-width:340px;}
.footer-status{
  display:inline-flex;align-items:center;gap:7px;
  background:rgba(34,211,197,.14);color:#8FE9DE;
  border-radius:var(--r-pill);padding:5px 13px;font-size:13px;
}
.footer-title{color:#fff;font-size:14px;font-weight:600;margin-bottom:14px;}
.footer-link{display:block;color:#C7D2EA;font-size:14px;line-height:2.1;transition:color .2s ease;}
.footer-link:hover{color:#fff;text-decoration:underline;}
.footer-label{display:block;font-size:14px;color:#C7D2EA;margin-bottom:10px;}
.footer-input{
  width:100%;height:46px;border-radius:12px;padding:0 14px;
  border:1px solid rgba(255,255,255,.2);background:rgba(255,255,255,.06);
  color:#fff;font-size:14px;outline:none;transition:border-color .2s ease,box-shadow .2s ease;
}
.footer-input::placeholder{color:#93A1C4;}
.footer-input:focus{border-color:var(--mint-500);box-shadow:0 0 0 4px rgba(34,211,197,.18);}
.footer-bottom{
  margin-top:44px;padding-top:20px;border-top:1px solid rgba(255,255,255,.12);
  display:flex;justify-content:space-between;gap:12px;flex-wrap:wrap;
  color:#8A96B2;font-size:13px;
}

/* roulang page: category3 */
:root{
  --brand-900:#0F2E6E;
  --brand-700:#143A8C;
  --brand-500:#2E5BFF;
  --accent-500:#FF6A2A;
  --accent-050:#FFF1E8;
  --mint-500:#22D3C5;
  --bg:#F5F7FC;
  --surface:#FFFFFF;
  --line:#E4E9F5;
  --ink:#1A2238;
  --ink-2:#5A6785;
  --ink-3:#8A96B2;
  --radius-sm:14px;
  --radius-lg:20px;
  --shadow-1:0 1px 2px rgba(20,35,90,.06),0 8px 24px -12px rgba(20,35,90,.14);
  --shadow-2:0 14px 34px -14px rgba(20,35,90,.22);
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:system-ui,-apple-system,"PingFang SC","HarmonyOS Sans","Microsoft YaHei","Source Han Sans SC",sans-serif;
  font-size:16px;
  line-height:1.85;
  color:var(--ink);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;}
a{color:inherit;}
button{font-family:inherit;}
.num{font-variant-numeric:tabular-nums;}

.wrap{width:100%;max-width:1200px;margin:0 auto;padding:0 20px;}
@media (min-width:768px){ .wrap{padding:0 32px;} }

/* ---------- header ---------- */
.site-header{
  position:sticky;top:0;z-index:50;
  background:rgba(255,255,255,.94);
  border-bottom:1px solid transparent;
  transition:box-shadow .25s ease,border-color .25s ease;
}
.site-header.is-scrolled{border-bottom-color:var(--line);box-shadow:0 6px 22px -16px rgba(20,35,90,.5);}
.nav-bar{display:flex;align-items:center;justify-content:space-between;gap:16px;height:72px;transition:height .25s ease;}
.site-header.is-scrolled .nav-bar{height:60px;}
.logo-mark{
  width:34px;height:34px;border-radius:11px;flex:0 0 auto;
  background:linear-gradient(135deg,var(--brand-700),var(--brand-500));
  color:#fff;font-size:17px;font-weight:700;
  display:inline-flex;align-items:center;justify-content:center;
  box-shadow:0 6px 16px -8px rgba(46,91,255,.8);
}
.logo-text{font-size:17px;font-weight:700;color:var(--brand-700);letter-spacing:.2px;white-space:nowrap;}
.nav-link{
  position:relative;display:inline-flex;align-items:center;height:36px;padding:0 14px;
  border-radius:10px;font-size:15px;color:var(--ink-2);text-decoration:none;
  transition:color .2s ease,background .2s ease;
}
.nav-link:hover{color:var(--brand-700);background:var(--bg);font-weight:600;}
.nav-link.active{color:var(--brand-700);font-weight:600;}
.nav-link.active::after{
  content:"";position:absolute;left:14px;right:14px;bottom:-1px;height:3px;
  border-radius:99px;background:var(--brand-500);
}
.status-pill{
  display:inline-flex;align-items:center;gap:7px;height:26px;padding:0 12px;border-radius:999px;
  background:rgba(34,211,197,.12);color:#0E8B80;font-size:13px;white-space:nowrap;
}
.status-pill .dot{width:7px;height:7px;border-radius:50%;background:var(--mint-500);display:inline-block;}
.countdown-pill{
  display:inline-flex;align-items:center;gap:6px;height:26px;padding:0 12px;border-radius:999px;
  background:var(--accent-500);color:#fff;font-size:13px;white-space:nowrap;
}
.burger{
  width:42px;height:42px;border-radius:12px;border:1px solid var(--line);background:#fff;
  color:var(--brand-700);font-size:17px;display:inline-flex;align-items:center;justify-content:center;
  cursor:pointer;transition:.2s ease;
}
.burger:hover{border-color:rgba(46,91,255,.4);}

/* mobile panel */
.mobile-panel{
  position:fixed;inset:0;z-index:60;background:#fff;padding:20px 20px 28px;
  display:flex;flex-direction:column;
  opacity:0;visibility:hidden;transform:translateY(-10px);
  transition:opacity .25s ease,transform .25s ease,visibility .25s;
}
.mobile-panel.open{opacity:1;visibility:visible;transform:none;}
.mobile-panel .m-head{display:flex;align-items:center;justify-content:space-between;height:52px;}
.mobile-panel .m-link{
  display:flex;align-items:center;height:48px;font-size:16px;color:var(--ink);
  text-decoration:none;border-bottom:1px solid var(--line);
}
.mobile-panel .m-link.active{color:var(--brand-700);font-weight:600;}
.mobile-panel .m-foot{margin-top:auto;padding-top:20px;border-top:1px solid var(--line);}
body.nav-open{overflow:hidden;}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:46px;padding:0 22px;border-radius:999px;font-size:15px;font-weight:600;
  text-decoration:none;border:1px solid transparent;cursor:pointer;
  transition:transform .2s ease,box-shadow .2s ease,filter .2s ease,background .2s ease,border-color .2s ease;
}
.btn:focus-visible{outline:2px solid var(--brand-500);outline-offset:2px;}
.btn-primary{background:var(--accent-500);color:#fff;box-shadow:0 8px 20px -12px rgba(255,106,42,.85);}
.btn-primary:hover{filter:brightness(.94);transform:translateY(-1px);box-shadow:0 14px 30px -14px rgba(255,106,42,.9);}
.btn-primary:active{transform:translateY(0);}
.btn-outline{background:#fff;color:var(--brand-700);border-color:var(--line);}
.btn-outline:hover{border-color:rgba(46,91,255,.45);transform:translateY(-1px);box-shadow:var(--shadow-1);}
.btn-outline:active{transform:translateY(0);}
.btn-sm{height:38px;padding:0 16px;font-size:14px;}
.btn-ghost{background:rgba(255,255,255,.12);color:#fff;border-color:rgba(255,255,255,.4);}
.btn-ghost:hover{background:rgba(255,255,255,.2);transform:translateY(-1px);}

/* ---------- chips ---------- */
.chip{
  display:inline-flex;align-items:center;gap:6px;height:26px;padding:0 12px;border-radius:999px;
  font-size:14px;line-height:1;white-space:nowrap;
}
.chip-brand{background:rgba(46,91,255,.1);color:var(--brand-700);}
.chip-accent{background:var(--accent-050);color:#C4471A;}
.chip-mint{background:rgba(34,211,197,.14);color:#0E8B80;}

/* ---------- hero ---------- */
.hero-section{background:linear-gradient(180deg,#FFFFFF 0%,var(--bg) 100%);padding:28px 0 56px;}
.breadcrumb{font-size:13px;color:var(--ink-3);margin-bottom:22px;}
.breadcrumb a{text-decoration:none;color:var(--ink-3);}
.breadcrumb a:hover{color:var(--brand-500);}
.breadcrumb span{margin:0 6px;}
.hero-title{
  font-size:clamp(30px,6vw,48px);line-height:1.18;font-weight:700;color:var(--brand-700);
  margin:16px 0 0;letter-spacing:-.4px;
}
.hero-sub{font-size:16px;line-height:1.8;color:var(--ink-2);margin:18px 0 0;max-width:32em;}
.hero-media{position:relative;border-radius:var(--radius-lg);overflow:hidden;box-shadow:var(--shadow-1);aspect-ratio:16/11;background:#E8EDF9;}
.hero-media img{width:100%;height:100%;object-fit:cover;}
.hero-badge{
  position:absolute;left:16px;top:16px;height:26px;padding:0 12px;border-radius:999px;
  background:rgba(15,46,110,.82);color:#fff;font-size:13px;display:inline-flex;align-items:center;
}
.stat-bar{
  margin-top:44px;padding-top:22px;border-top:1px solid var(--line);
  display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:16px;
}
.stat-item .stat-num{font-size:24px;font-weight:700;color:var(--brand-700);line-height:1.2;}
.stat-item .stat-label{font-size:13px;color:var(--ink-3);margin-top:2px;}

/* ---------- sections ---------- */
.section{padding:56px 0;}
@media (min-width:768px){ .section{padding:72px 0;} }
@media (min-width:1024px){ .section{padding:96px 0;} }
.section-head{max-width:760px;}
.section-index{font-size:13px;font-weight:600;color:var(--brand-500);letter-spacing:2px;}
.section-title{
  position:relative;font-size:clamp(24px,4vw,32px);line-height:1.3;font-weight:700;
  color:var(--brand-700);margin:12px 0 0;padding-left:16px;
}
.section-title::before{content:"";position:absolute;left:0;top:.18em;bottom:.18em;width:4px;border-radius:99px;background:var(--brand-500);}
.section-desc{font-size:15px;line-height:1.8;color:var(--ink-2);margin:14px 0 0;}

/* zigzag rows */
.zigzag{display:grid;gap:28px;align-items:center;}
@media (min-width:1024px){
  .zigzag{grid-template-columns:1fr 1fr;gap:56px;}
  .zigzag.reverse .zz-media{order:-1;}
}
.zz-media{position:relative;border-radius:var(--radius-lg);overflow:hidden;box-shadow:var(--shadow-1);aspect-ratio:4/3;background:#E8EDF9;}
.zz-media img{width:100%;height:100%;object-fit:cover;transition:transform .4s ease;}
.zigzag:hover .zz-media img{transform:scale(1.04);}
.zz-step{font-size:13px;font-weight:600;color:var(--brand-500);letter-spacing:1px;}
.zz-title{font-size:clamp(20px,3vw,22px);line-height:1.45;font-weight:600;color:var(--brand-700);margin:10px 0 0;}
.zz-text{font-size:15px;line-height:1.85;color:var(--ink-2);margin:12px 0 0;}
.zz-list{margin:16px 0 0;padding:0;list-style:none;}
.zz-list li{position:relative;padding-left:20px;font-size:15px;color:var(--ink-2);line-height:1.8;margin-bottom:8px;}
.zz-list li::before{content:"";position:absolute;left:0;top:.72em;width:8px;height:8px;border-radius:50%;background:var(--mint-500);}
.zigzag-block{display:grid;gap:56px;}

/* checklist cards */
.card-grid{display:grid;gap:20px;grid-template-columns:1fr;}
@media (min-width:640px){ .card-grid{grid-template-columns:repeat(2,minmax(0,1fr));} }
@media (min-width:1024px){ .card-grid{grid-template-columns:repeat(4,minmax(0,1fr));} }
.info-card{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-sm);
  padding:20px;box-shadow:var(--shadow-1);transition:border-color .25s ease,box-shadow .25s ease,transform .25s ease;
}
.info-card:hover{border-color:rgba(46,91,255,.24);box-shadow:var(--shadow-2);transform:translateY(-2px);}
.info-card .ic-icon{
  width:38px;height:38px;border-radius:12px;background:var(--accent-050);color:var(--accent-500);
  display:inline-flex;align-items:center;justify-content:center;font-size:16px;
}
.info-card h3{font-size:17px;font-weight:600;color:var(--ink);margin:14px 0 6px;}
.info-card p{font-size:14px;line-height:1.8;color:var(--ink-2);margin:0;}

/* compare rows */
.row-list{display:grid;gap:14px;margin-top:32px;}
.row-card{
  display:grid;gap:6px;background:#fff;border:1px solid var(--line);border-radius:var(--radius-sm);
  padding:18px 20px;transition:border-color .25s ease,background .25s ease,box-shadow .25s ease;
}
.row-card:hover{border-color:rgba(46,91,255,.24);box-shadow:var(--shadow-1);}
@media (min-width:768px){
  .row-card{grid-template-columns:220px 1fr;align-items:center;gap:24px;}
}
.row-card .rc-label{font-size:15px;font-weight:600;color:var(--brand-700);display:flex;align-items:center;gap:10px;}
.row-card .rc-label i{color:var(--accent-500);font-size:14px;}
.row-card .rc-text{font-size:15px;color:var(--ink-2);line-height:1.8;}

/* faq */
.faq-wrap{max-width:800px;margin:32px auto 0;display:grid;gap:14px;}
.faq-item{background:#fff;border:1px solid var(--line);border-radius:var(--radius-sm);overflow:hidden;transition:border-color .25s ease,box-shadow .25s ease;}
.faq-item.open{border-color:rgba(46,91,255,.24);box-shadow:var(--shadow-1);}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:18px 20px;background:none;border:0;cursor:pointer;text-align:left;
  font-size:16px;font-weight:600;color:var(--ink);line-height:1.6;
}
.faq-q:focus-visible{outline:2px solid var(--brand-500);outline-offset:-2px;}
.faq-icon{
  flex:0 0 auto;width:26px;height:26px;border-radius:50%;background:var(--bg);color:var(--brand-700);
  display:inline-flex;align-items:center;justify-content:center;font-size:13px;transition:transform .3s ease,background .3s ease,color .3s ease;
}
.faq-item.open .faq-icon{background:var(--accent-500);color:#fff;transform:rotate(180deg);}
.faq-a{max-height:0;overflow:hidden;transition:max-height .3s ease;}
.faq-a-inner{padding:0 20px 20px;font-size:15px;line-height:1.85;color:var(--ink-2);}

/* cta band */
.cta-band{
  margin-top:8px;background:var(--brand-900);border-radius:var(--radius-lg);
  padding:36px 28px;display:grid;gap:22px;align-items:center;
  box-shadow:0 24px 48px -30px rgba(15,46,110,.9);
}
@media (min-width:900px){ .cta-band{grid-template-columns:1fr auto;padding:44px 48px;gap:40px;} }
.cta-band h2{font-size:clamp(22px,3vw,28px);line-height:1.4;font-weight:700;color:#fff;margin:0;}
.cta-band p{font-size:15px;line-height:1.8;color:#C7D2EA;margin:10px 0 0;}
.cta-actions{display:flex;flex-wrap:wrap;gap:12px;}

/* footer */
.site-footer{background:var(--brand-900);color:#C7D2EA;margin-top:80px;}
.footer-grid{display:grid;gap:36px;grid-template-columns:1fr;}
@media (min-width:640px){ .footer-grid{grid-template-columns:repeat(2,minmax(0,1fr));} }
@media (min-width:1024px){ .footer-grid{grid-template-columns:1.3fr 1fr 1fr 1.2fr;gap:48px;} }
.footer-logo{display:flex;align-items:center;gap:10px;margin-bottom:16px;}
.footer-logo .logo-text{color:#fff;}
.footer-desc{font-size:14px;line-height:1.85;color:#C7D2EA;margin:0;max-width:30em;}
.footer-status{display:inline-flex;align-items:center;gap:8px;margin-top:16px;font-size:13px;color:var(--mint-500);}
.footer-title{font-size:14px;font-weight:600;color:#fff;margin:0 0 12px;}
.footer-link{display:block;font-size:14px;color:#C7D2EA;text-decoration:none;padding:6px 0;transition:color .2s ease;}
.footer-link:hover{color:#fff;text-decoration:underline;}
.footer-label{display:block;font-size:14px;color:#C7D2EA;margin-bottom:10px;}
.footer-input{
  width:100%;height:46px;border-radius:12px;padding:0 14px;font-size:14px;
  background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.2);color:#fff;
  transition:border-color .2s ease,box-shadow .2s ease;
}
.footer-input::placeholder{color:#8FA3CE;}
.footer-input:focus{outline:none;border-color:var(--brand-500);box-shadow:0 0 0 4px rgba(46,91,255,.2);}
.footer-bottom{
  margin-top:36px;padding-top:20px;border-top:1px solid rgba(255,255,255,.12);
  display:flex;flex-wrap:wrap;gap:8px;justify-content:space-between;font-size:13px;color:#8FA3CE;
}
@media (max-width:519px){
  .nav-bar{height:64px;}
  .logo-text{font-size:15px;}
  .hero-title{font-size:29px;}
  .stat-item .stat-num{font-size:20px;}
  .cta-band{padding:28px 20px;}
  .btn{height:44px;padding:0 18px;font-size:14px;}
}