/* roulang page: index */
:root{
  --brand:#1B54E0;
  --brand-d:#0E3AA8;
  --brand-l:#EAF0FF;
  --accent:#FF6A2B;
  --accent-d:#E4551A;
  --accent-2:#0FB5A0;
  --text:#0F172A;
  --text-2:#475569;
  --text-3:#8A94A6;
  --border:#E4E9F2;
  --bg:#FFFFFF;
  --bg-soft:#F6F8FC;
  --card:#FFFFFF;
  --r-sm:8px;
  --r-md:12px;
  --r-lg:16px;
  --r-xl:24px;
  --r-pill:999px;
  --sh-1:0 1px 2px rgba(16,24,40,.04);
  --sh-2:0 10px 30px -12px rgba(16,24,40,.14);
  --sh-3:0 18px 40px -16px rgba(27,84,224,.26);
  --bs-primary:#1B54E0;
  --bs-body-color:#0F172A;
  --bs-body-bg:#FFFFFF;
  --bs-border-radius:12px;
  --bs-link-color:#1B54E0;
  --bs-link-hover-color:#FF6A2B;
  --bs-font-sans-serif:system-ui,-apple-system,"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Segoe UI",sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  font-family:system-ui,-apple-system,"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Segoe UI",sans-serif;
  font-size:16.5px;
  line-height:1.85;
  color:var(--text);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
  overflow-x:hidden;
}
img{max-width:100%;height:auto;display:block}
a{color:var(--brand);text-decoration:none;transition:color .2s ease,background-color .2s ease,border-color .2s ease}
a:hover{color:var(--accent)}
h1,h2,h3,h4,h5{color:var(--text);font-weight:700;line-height:1.3;margin:0}
p{margin:0}
ul{margin:0;padding:0;list-style:none}
button,input,select,textarea{font-family:inherit;font-size:inherit}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px}
.num{font-variant-numeric:tabular-nums}

.container{
  width:100%;
  max-width:1240px;
  padding-left:20px;
  padding-right:20px;
  margin:0 auto;
}
@media (min-width:1400px){.container{max-width:1280px}}

/* ---------- Header ---------- */
.site-header{
  position:sticky;
  top:0;
  z-index:1030;
  background:#FFFFFF;
  border-bottom:1px solid var(--border);
  transition:box-shadow .25s ease,padding .25s ease;
}
.site-header.is-scrolled{box-shadow:var(--sh-2)}
.site-header .navbar{padding:0;min-height:72px;transition:min-height .25s ease}
.site-header.is-scrolled .navbar{min-height:64px}
.brand{
  display:flex;
  align-items:center;
  gap:10px;
  font-size:20px;
  font-weight:700;
  color:var(--text);
  letter-spacing:.2px;
  padding:0;
  margin-right:24px;
}
.brand:hover{color:var(--brand)}
.brand-mark{
  width:34px;height:34px;
  display:inline-flex;align-items:center;justify-content:center;
  border-radius:10px;
  background:var(--brand);
  color:#fff;
  font-size:15px;
  box-shadow:0 6px 16px -6px rgba(27,84,224,.6);
}
.brand-text{white-space:nowrap}
.nav-center{gap:2px}
.site-header .nav-link{
  font-size:15px;
  font-weight:500;
  color:var(--text-2);
  padding:9px 14px;
  position:relative;
  border-radius:var(--r-sm);
}
.site-header .nav-link::after{
  content:"";
  position:absolute;
  left:50%;bottom:2px;
  transform:translateX(-50%);
  width:0;height:2px;
  border-radius:2px;
  background:var(--brand);
  transition:width .22s ease;
}
.site-header .nav-link:hover{color:var(--brand)}
.site-header .nav-link:hover::after{width:36px}
.site-header .nav-link.active{color:var(--brand);font-weight:600}
.site-header .nav-link.active::after{width:48px}
.nav-actions{display:flex;align-items:center;gap:10px}
.btn-outline-brand{
  border:1px solid var(--brand);
  color:var(--brand);
  background:transparent;
  border-radius:var(--r-pill);
  padding:10px 22px;
  font-size:15px;
  font-weight:600;
  line-height:1.2;
  transition:all .2s ease;
}
.btn-outline-brand:hover{
  background:var(--brand-l);
  color:var(--brand-d);
  border-color:var(--brand-d);
  transform:translateY(-1px);
}
.btn-accent{
  background:var(--accent);
  border:1px solid var(--accent);
  color:#fff;
  border-radius:var(--r-pill);
  padding:10px 22px;
  font-size:15px;
  font-weight:600;
  line-height:1.2;
  transition:all .2s ease;
  box-shadow:0 8px 20px -10px rgba(255,106,43,.9);
}
.btn-accent:hover{
  background:var(--accent-d);
  border-color:var(--accent-d);
  color:#fff;
  transform:translateY(-1px);
  box-shadow:var(--sh-3);
}
.btn-accent:active,.btn-outline-brand:active{transform:translateY(0);box-shadow:inset 0 2px 6px rgba(0,0,0,.14)}
.navbar-toggler{
  border:1px solid var(--border);
  border-radius:var(--r-sm);
  padding:8px 11px;
  box-shadow:none!important;
}
.navbar-toggler:focus{box-shadow:none}
.navbar-toggler-icon{
  background-image:url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 30 30'%3e%3cpath stroke='%230F172A' stroke-width='2' stroke-linecap='round' d='M4 8h22M4 15h22M4 22h22'/%3e%3c/svg%3e");
}
@media (max-width:991.98px){
  .site-header .navbar-collapse{
    border-top:1px solid var(--border);
    margin-top:12px;
    padding:12px 0 18px;
  }
  .site-header .nav-link{padding:12px 14px;font-size:16px}
  .site-header .nav-link::after{display:none}
  .site-header .nav-link.active{background:var(--brand-l);color:var(--brand)}
  .nav-actions{flex-direction:column;align-items:stretch;gap:10px;margin-top:12px}
  .nav-actions .btn{width:100%;text-align:center;border-radius:var(--r-md)}
}

/* ---------- Hero ---------- */
.hero{
  position:relative;
  padding:76px 0 88px;
  background:linear-gradient(45deg,var(--brand-l) 0%,#FFFFFF 62%);
  overflow:hidden;
}
.hero::after{
  content:"";
  position:absolute;
  right:-120px;top:-120px;
  width:420px;height:420px;
  border-radius:50%;
  background:rgba(27,84,224,.05);
  pointer-events:none;
}
.hero .container{position:relative;z-index:2}
.hero-eyebrow{
  display:inline-flex;
  align-items:center;
  gap:8px;
  background:#fff;
  border:1px solid var(--border);
  color:var(--brand-d);
  font-size:13px;
  font-weight:600;
  padding:7px 16px;
  border-radius:var(--r-pill);
  box-shadow:var(--sh-1);
  margin-bottom:20px;
}
.hero-eyebrow i{color:var(--accent-2)}
.hero-title{
  font-size:clamp(34px,4.6vw,54px);
  line-height:1.22;
  font-weight:700;
  letter-spacing:-.5px;
  margin-bottom:18px;
  max-width:18ch;
}
.hero-title em{font-style:normal;color:var(--brand)}
.hero-sub{
  font-size:17px;
  color:var(--text-2);
  margin-bottom:22px;
  max-width:34ch;
}
.hero-points{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:8px 18px;
  margin-bottom:30px;
}
.hero-points li{
  display:inline-flex;
  align-items:center;
  gap:8px;
  font-size:15px;
  color:var(--text-2);
  font-weight:500;
}
.hero-points i{color:var(--accent-2);font-size:14px}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-bottom:22px}
.btn-lg-cta{
  height:48px;
  display:inline-flex;
  align-items:center;
  justify-content:center;
  padding:0 28px;
  font-size:16px;
  font-weight:600;
  border-radius:var(--r-md);
}
.btn-accent.btn-lg-cta{background:var(--accent);border:1px solid var(--accent);color:#fff;border-radius:var(--r-md)}
.btn-accent.btn-lg-cta:hover{background:var(--accent-d);border-color:var(--accent-d);color:#fff;transform:translateY(-1px);box-shadow:var(--sh-3)}
.btn-outline-brand.btn-lg-cta{border:1px solid var(--brand);color:var(--brand);background:#fff;border-radius:var(--r-md)}
.btn-outline-brand.btn-lg-cta:hover{background:var(--brand-l);color:var(--brand-d);transform:translateY(-1px);box-shadow:var(--sh-3)}
.hero-note{
  font-size:14px;
  color:var(--text-3);
  display:flex;
  align-items:center;
  gap:8px;
}
.hero-note i{color:var(--accent-2)}
.hero-visual{
  position:relative;
  border-radius:var(--r-xl);
  overflow:visible;
}
.hero-visual img{
  width:100%;
  aspect-ratio:16/10;
  object-fit:cover;
  border-radius:var(--r-xl);
  box-shadow:var(--sh-2);
}
.hero-badge{
  position:absolute;
  left:-16px;
  bottom:26px;
  background:#fff;
  border-radius:var(--r-lg);
  box-shadow:var(--sh-2);
  padding:16px 20px;
  display:flex;
  flex-direction:column;
  gap:2px;
  border-left:3px solid var(--accent);
}
.hero-badge .hb-num{
  font-size:30px;
  font-weight:700;
  color:var(--brand);
  line-height:1.1;
  font-variant-numeric:tabular-nums;
}
.hero-badge .hb-label{font-size:13px;color:var(--text-3)}
.hero-chip{
  position:absolute;
  right:-12px;
  top:22px;
  background:var(--brand-d);
  color:#fff;
  border-radius:var(--r-pill);
  padding:9px 18px;
  font-size:13px;
  font-weight:600;
  box-shadow:var(--sh-2);
  display:inline-flex;
  align-items:center;
  gap:8px;
}
.hero-chip i{color:#5DE2C9}
@media (max-width:991.98px){
  .hero{padding:52px 0 64px}
  .hero-title{max-width:100%}
  .hero-badge{left:12px;bottom:12px;padding:12px 16px}
  .hero-badge .hb-num{font-size:24px}
  .hero-chip{right:8px;top:12px;font-size:12px;padding:7px 14px}
}

/* ---------- Section base ---------- */
.section{padding:88px 0}
.section-soft{background:var(--bg-soft)}
.section-head{max-width:720px;margin-bottom:44px}
.section-head.center{margin-left:auto;margin-right:auto;text-align:center}
.section-tag{
  display:inline-block;
  background:var(--brand-l);
  color:var(--brand-d);
  font-size:12.5px;
  font-weight:600;
  letter-spacing:.5px;
  padding:6px 14px;
  border-radius:var(--r-pill);
  margin-bottom:14px;
}
.section-title{
  font-size:clamp(26px,3vw,34px);
  line-height:1.3;
  font-weight:700;
  letter-spacing:-.3px;
  margin-bottom:14px;
}
.section-desc{color:var(--text-2);font-size:16.5px}
@media (max-width:991.98px){.section{padding:64px 0}.section-head{margin-bottom:32px}}
@media (max-width:767.98px){.section{padding:52px 0}}

/* ---------- Stats bar ---------- */
.stats-bar{
  background:#fff;
  border-top:1px solid var(--border);
  border-bottom:1px solid var(--border);
  padding:38px 0;
}
.stats-grid{
  display:grid;
  grid-template-columns:repeat(4,1fr);
}
.stat-item{
  text-align:center;
  padding:6px 16px;
  position:relative;
}
.stat-item + .stat-item::before{
  content:"";
  position:absolute;
  left:0;top:12%;
  width:1px;height:76%;
  background:var(--border);
}
.stat-num{
  font-size:clamp(30px,3.4vw,42px);
  font-weight:700;
  color:var(--brand);
  line-height:1.15;
  font-variant-numeric:tabular-nums;
  letter-spacing:-1px;
}
.stat-num small{font-size:.5em;font-weight:600;color:var(--brand-d);margin-left:2px}
.stat-label{font-size:13.5px;color:var(--text-3);margin-top:4px}
@media (max-width:767.98px){
  .stats-grid{grid-template-columns:repeat(2,1fr);gap:24px 0}
  .stat-item:nth-child(3)::before{display:none}
}

/* ---------- Cards ---------- */
.card-soft{
  background:var(--card);
  border-radius:var(--r-lg);
  padding:24px;
  box-shadow:var(--sh-2);
  transition:transform .22s ease,box-shadow .22s ease;
  height:100%;
}
.card-soft:hover{transform:translateY(-2px);box-shadow:var(--sh-3)}
.icon-box{
  width:44px;height:44px;
  border-radius:var(--r-md);
  background:var(--brand-l);
  color:var(--brand);
  display:inline-flex;
  align-items:center;
  justify-content:center;
  font-size:19px;
  margin-bottom:16px;
}
.card-soft h3{font-size:20px;font-weight:600;margin-bottom:10px}
.card-soft p{color:var(--text-2);font-size:15.5px;line-height:1.8}

.cap-main{
  display:flex;
  gap:28px;
  align-items:center;
  background:#fff;
  border-radius:var(--r-lg);
  padding:32px;
  box-shadow:var(--sh-2);
  height:100%;
  transition:transform .22s ease,box-shadow .22s ease;
}
.cap-main:hover{transform:translateY(-2px);box-shadow:var(--sh-3)}
.cap-main-text{flex:1 1 0;min-width:0}
.cap-main-text h3{font-size:24px;margin-bottom:12px}
.cap-main-text p{color:var(--text-2);font-size:15.5px}
.cap-main-img{flex:0 0 42%;max-width:42%}
.cap-main-img img{
  width:100%;
  aspect-ratio:16/11;
  object-fit:cover;
  border-radius:var(--r-md);
}
.cap-list{margin-top:16px;display:grid;gap:8px}
.cap-list li{font-size:14.5px;color:var(--text-2);display:flex;gap:8px;align-items:flex-start}
.cap-list li i{color:var(--accent-2);margin-top:6px;font-size:12px}
@media (max-width:991.98px){
  .cap-main{flex-direction:column;align-items:flex-start;padding:24px}
  .cap-main-img{max-width:100%;flex:none;width:100%}
}

/* ---------- Scenarios ---------- */
.scene-row{
  display:grid;
  grid-template-columns:5fr 7fr;
  gap:44px;
  align-items:center;
  padding:38px 0;
  border-bottom:1px solid var(--border);
}
.scene-row:last-of-type{border-bottom:none}
.scene-row.reverse .scene-img{order:2}
.scene-row.reverse .scene-text{order:1}
.scene-img img{
  width:100%;
  aspect-ratio:16/9;
  object-fit:cover;
  border-radius:var(--r-md);
  box-shadow:var(--sh-2);
}
.scene-tag{
  display:inline-block;
  background:var(--brand-l);
  color:var(--brand-d);
  font-size:12.5px;
  font-weight:600;
  padding:5px 13px;
  border-radius:var(--r-pill);
  margin-bottom:14px;
}
.scene-text h3{font-size:22px;margin-bottom:12px}
.scene-text p{color:var(--text-2);font-size:15.5px;margin-bottom:16px}
.link-more{
  font-size:15px;
  font-weight:600;
  color:var(--brand);
  display:inline-flex;
  align-items:center;
  gap:8px;
}
.link-more i{transition:transform .2s ease}
.link-more:hover{color:var(--accent)}
.link-more:hover i{transform:translateX(4px)}
@media (max-width:767.98px){
  .scene-row{grid-template-columns:1fr;gap:20px;padding:28px 0}
  .scene-row.reverse .scene-img,.scene-row.reverse .scene-text{order:0}
}

/* ---------- Board ---------- */
.board-grid{
  display:grid;
  grid-template-columns:7fr 5fr;
  gap:24px;
  align-items:start;
}
.panel{
  background:#fff;
  border-radius:var(--r-lg);
  box-shadow:var(--sh-2);
  overflow:hidden;
}
.panel-head{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:12px;
  padding:20px 24px;
  border-bottom:1px solid var(--border);
}
.panel-head h3{font-size:18px;font-weight:600}
.panel-head span{font-size:13px;color:var(--text-3)}
.rank-table{width:100%;border-collapse:collapse}
.rank-table thead th{
  background:var(--brand-l);
  color:var(--brand-d);
  font-size:13px;
  font-weight:600;
  text-align:left;
  padding:12px 24px;
  white-space:nowrap;
}
.rank-table tbody td{
  padding:14px 24px;
  font-size:15px;
  color:var(--text-2);
  border-bottom:1px solid var(--border);
  font-variant-numeric:tabular-nums;
}
.rank-table tbody tr:last-child td{border-bottom:none}
.rank-table tbody tr:nth-child(even){background:#FBFCFF}
.rank-table tbody tr:hover{background:var(--brand-l)}
.rank-table .team{color:var(--text);font-weight:600}
.rank-no{
  display:inline-flex;
  width:24px;height:24px;
  align-items:center;justify-content:center;
  border-radius:7px;
  background:var(--bg-soft);
  color:var(--text-2);
  font-size:13px;
  font-weight:600;
}
.rank-no.top{background:var(--accent);color:#fff}
.dot-live{
  display:inline-block;
  width:7px;height:7px;
  border-radius:50%;
  background:var(--accent-2);
  margin-right:7px;
  vertical-align:middle;
}
.bracket{padding:22px 24px 26px;display:grid;gap:14px}
.bracket-round{display:grid;gap:10px}
.bracket-round h4{
  font-size:13px;
  font-weight:600;
  color:var(--text-3);
  letter-spacing:.6px;
}
.bracket-item{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:10px;
  background:var(--bg-soft);
  border-radius:var(--r-sm);
  padding:11px 14px;
  font-size:14.5px;
  color:var(--text-2);
}
.bracket-item b{color:var(--text);font-weight:600;font-variant-numeric:tabular-nums}
.bracket-item.win{background:var(--brand-l);border-left:3px solid var(--brand)}
.bracket-item.win b{color:var(--brand-d)}
@media (max-width:991.98px){
  .board-grid{grid-template-columns:1fr}
  .rank-table thead th,.rank-table tbody td{padding-left:16px;padding-right:16px;font-size:14px}
}

/* ---------- Cases ---------- */
.case-card{
  background:#fff;
  border-radius:var(--r-lg);
  padding:26px;
  box-shadow:var(--sh-2);
  height:100%;
  display:flex;
  flex-direction:column;
  gap:14px;
  transition:transform .22s ease,box-shadow .22s ease;
}
.case-card:hover{transform:translateY(-2px);box-shadow:var(--sh-3)}
.case-top{display:flex;align-items:center;justify-content:space-between;gap:12px}
.case-name{font-size:16px;font-weight:600}
.case-tag{
  font-size:12px;
  font-weight:600;
  color:var(--brand-d);
  background:var(--brand-l);
  padding:4px 11px;
  border-radius:var(--r-pill);
  white-space:nowrap;
}
.case-card p{color:var(--text-2);font-size:15px;line-height:1.8}
.case-metrics{
  display:flex;
  gap:26px;
  padding-top:14px;
  border-top:1px solid var(--border);
  margin-top:auto;
}
.case-metric span{
  display:block;
  font-size:24px;
  font-weight:700;
  color:var(--accent);
  line-height:1.2;
  font-variant-numeric:tabular-nums;
}
.case-metric small{font-size:12.5px;color:var(--text-3)}

/* ---------- News ---------- */
.news-head{
  display:flex;
  align-items:flex-end;
  justify-content:space-between;
  gap:20px;
  margin-bottom:36px;
}
.news-card{
  display:flex;
  flex-direction:column;
  height:100%;
  background:#fff;
  border-radius:var(--r-lg);
  box-shadow:var(--sh-2);
  overflow:hidden;
  color:inherit;
  transition:transform .22s ease,box-shadow .22s ease;
}
.news-card:hover{transform:translateY(-2px);box-shadow:var(--sh-3);color:inherit}
.news-thumb{position:relative;overflow:hidden}
.news-thumb img{
  width:100%;
  aspect-ratio:16/9;
  object-fit:cover;
  transition:transform .4s ease;
}
.news-card:hover .news-thumb img{transform:scale(1.04)}
.news-body{padding:20px 22px 22px;display:flex;flex-direction:column;gap:10px;flex:1}
.badge-soft{
  align-self:flex-start;
  background:var(--brand-l);
  color:var(--brand-d);
  font-size:12.5px;
  font-weight:600;
  padding:4px 12px;
  border-radius:var(--r-pill);
}
.news-title{
  font-size:18px;
  font-weight:600;
  line-height:1.5;
  display:-webkit-box;
  -webkit-line-clamp:2;
  -webkit-box-orient:vertical;
  overflow:hidden;
}
.news-excerpt{
  font-size:14.5px;
  color:var(--text-2);
  line-height:1.75;
  display:-webkit-box;
  -webkit-line-clamp:2;
  -webkit-box-orient:vertical;
  overflow:hidden;
}
.news-meta{
  margin-top:auto;
  padding-top:12px;
  border-top:1px solid var(--border);
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:10px;
  font-size:13.5px;
  color:var(--text-3);
}
.news-meta i{margin-right:5px}
.empty-state{
  background:var(--bg-soft);
  border-radius:var(--r-lg);
  padding:56px 24px;
  text-align:center;
}
.empty-state i{font-size:32px;color:var(--text-3);margin-bottom:14px;display:block}
.empty-state p{color:var(--text-2);font-size:15.5px}
@media (max-width:767.98px){.news-head{flex-direction:column;align-items:flex-start}}

/* ---------- Pricing ---------- */
.price-card{
  background:#fff;
  border-radius:var(--r-lg);
  padding:32px 28px;
  box-shadow:var(--sh-2);
  height:100%;
  display:flex;
  flex-direction:column;
  position:relative;
  transition:transform .22s ease,box-shadow .22s ease;
}
.price-card:hover{transform:translateY(-2px);box-shadow:var(--sh-3)}
.price-card.featured{
  border:2px solid var(--brand);
  box-shadow:0 22px 46px -20px rgba(27,84,224,.4);
  transform:translateY(-8px);
}
.price-card.featured:hover{transform:translateY(-10px)}
.price-badge{
  position:absolute;
  top:-14px;
  left:28px;
  background:var(--accent);
  color:#fff;
  font-size:12.5px;
  font-weight:600;
  padding:5px 16px;
  border-radius:var(--r-pill);
  box-shadow:0 8px 18px -8px rgba(255,106,43,.9);
}
.price-name{font-size:19px;font-weight:600;margin-bottom:6px}
.price-desc{font-size:14px;color:var(--text-3);margin-bottom:20px}
.price-amount{
  display:flex;
  align-items:baseline;
  gap:6px;
  padding-bottom:22px;
  border-bottom:1px solid var(--border);
  margin-bottom:22px;
}
.price-amount b{
  font-size:40px;
  font-weight:700;
  color:var(--accent);
  line-height:1.1;
  font-variant-numeric:tabular-nums;
  letter-spacing:-1px;
}
.price-amount span{font-size:14px;color:var(--text-3)}
.price-features{display:grid;gap:11px;margin-bottom:26px;flex:1}
.price-features li{
  display:flex;
  gap:10px;
  align-items:flex-start;
  font-size:14.8px;
  color:var(--text-2);
}
.price-features i{color:var(--accent-2);margin-top:6px;font-size:12px}
.btn-block-cta{
  display:block;
  width:100%;
  text-align:center;
  height:46px;
  line-height:44px;
  border-radius:var(--r-md);
  font-size:15.5px;
  font-weight:600;
  transition:all .2s ease;
}
.btn-brand-solid{background:var(--brand);color:#fff;border:1px solid var(--brand)}
.btn-brand-solid:hover{background:var(--brand-d);border-color:var(--brand-d);color:#fff;transform:translateY(-1px)}
.btn-accent-solid{background:var(--accent);color:#fff;border:1px solid var(--accent)}
.btn-accent-solid:hover{background:var(--accent-d);border-color:var(--accent-d);color:#fff;transform:translateY(-1px)}
.btn-ghost-line{background:#fff;color:var(--brand);border:1px solid var(--brand)}
.btn-ghost-line:hover{background:var(--brand-l);color:var(--brand-d);transform:translateY(-1px)}
@media (max-width:991.98px){.price-card.featured{transform:none}.price-card.featured:hover{transform:translateY(-2px)}}

/* ---------- FAQ ---------- */
.faq-wrap{max-width:880px;margin:0 auto}
.accordion-item{
  border:1px solid var(--border)!important;
  border-radius:var(--r-md)!important;
  background:#fff;
  margin-bottom:14px;
  overflow:hidden;
  box-shadow:var(--sh-1);
}
.accordion-button{
  font-size:16.5px;
  font-weight:600;
  color:var(--text);
  padding:19px 24px 19px 26px;
  background:#fff;
  border-radius:var(--r-md)!important;
  box-shadow:none!important;
  position:relative;
}
.accordion-button::before{
  content:"";
  position:absolute;
  left:0;top:50%;
  transform:translateY(-50%) scaleY(0);
  width:3px;height:60%;
  background:var(--brand);
  border-radius:0 3px 3px 0;
  transition:transform .2s ease;
}
.accordion-button:not(.collapsed){
  color:var(--brand);
  background:var(--brand-l);
}
.accordion-button:not(.collapsed)::before{transform:translateY(-50%) scaleY(1)}
.accordion-button::after{
  background-image:none;
  content:"\2b";
  font-family:"Font Awesome 6 Free","Segoe UI",sans-serif;
  font-weight:900;
  font-size:16px;
  color:var(--brand);
  width:auto;height:auto;
  transform:none;
  transition:transform .2s ease;
  display:flex;align-items:center;justify-content:center;
  margin-left:auto;
  line-height:1;
}
.accordion-button:not(.collapsed)::after{content:"\f068";transform:none}
.accordion-body{
  padding:6px 26px 22px;
  color:var(--text-2);
  font-size:15.5px;
  line-height:1.85;
}

/* ---------- CTA ---------- */
.cta-band{
  background:var(--brand-d);
  border-radius:var(--r-xl);
  padding:48px 52px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:32px;
  color:#fff;
  position:relative;
  overflow:hidden;
}
.cta-band::after{
  content:"";
  position:absolute;
  right:-80px;top:-80px;
  width:300px;height:300px;
  border-radius:50%;
  background:rgba(255,255,255,.05);
}
.cta-band h2{
  color:#fff;
  font-size:clamp(24px,2.8vw,32px);
  margin-bottom:10px;
  position:relative;z-index:2;
}
.cta-band p{color:rgba(255,255,255,.78);font-size:15.5px;position:relative;z-index:2;max-width:56ch}
.cta-band .cta-actions{display:flex;gap:12px;flex-shrink:0;position:relative;z-index:2}
.cta-band .btn-white{
  background:#fff;color:var(--brand-d);border:1px solid #fff;
  height:48px;display:inline-flex;align-items:center;padding:0 28px;
  border-radius:var(--r-md);font-weight:600;font-size:15.5px;
}
.cta-band .btn-white:hover{background:#F0F4FF;color:var(--brand-d);transform:translateY(-1px)}
.cta-band .btn-line-white{
  background:transparent;color:#fff;border:1px solid rgba(255,255,255,.5);
  height:48px;display:inline-flex;align-items:center;padding:0 28px;
  border-radius:var(--r-md);font-weight:600;font-size:15.5px;
}
.cta-band .btn-line-white:hover{background:rgba(255,255,255,.12);color:#fff;border-color:#fff;transform:translateY(-1px)}
@media (max-width:991.98px){
  .cta-band{flex-direction:column;align-items:flex-start;padding:36px 26px}
  .cta-band .cta-actions{width:100%;flex-direction:column}
  .cta-band .btn-white,.cta-band .btn-line-white{width:100%;justify-content:center}
}

/* ---------- Footer ---------- */
.site-footer{
  background:var(--bg-soft);
  border-top:1px solid var(--border);
  padding:64px 0 0;
  margin-top:88px;
}
.footer-grid{
  display:grid;
  grid-template-columns:1.6fr 1fr 1fr 1.2fr;
  gap:40px;
  padding-bottom:44px;
}
.footer-brand{
  display:flex;
  align-items:center;
  gap:10px;
  font-size:19px;
  font-weight:700;
  color:var(--text);
  margin-bottom:16px;
}
.footer-brand .brand-mark{width:32px;height:32px;font-size:14px}
.footer-about{font-size:14.5px;color:var(--text-2);line-height:1.85;max-width:36ch}
.footer-col h4{
  font-size:15px;
  font-weight:600;
  color:var(--text);
  margin-bottom:18px;
}
.footer-col ul{display:grid;gap:11px}
.footer-col a{font-size:14px;color:var(--text-3)}
.footer-col a:hover{color:var(--brand)}
.footer-contact li{
  display:flex;
  gap:10px;
  align-items:flex-start;
  font-size:14px;
  color:var(--text-3);
}
.footer-contact i{color:var(--brand);margin-top:5px;font-size:13px;width:16px}
.footer-bottom{
  border-top:1px solid var(--border);
  padding:22px 0 28px;
  display:flex;
  flex-wrap:wrap;
  gap:12px 24px;
  align-items:center;
  justify-content:space-between;
  font-size:13.5px;
  color:var(--text-3);
}
.footer-bottom a{color:var(--text-3)}
.footer-bottom a:hover{color:var(--brand)}
@media (max-width:991.98px){
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
  .site-footer{padding-top:52px;margin-top:64px}
}
@media (max-width:575.98px){
  .footer-grid{grid-template-columns:1fr}
}

/* roulang page: category1 */
:root{
  --brand:#1B54E0;
  --brand-d:#0E3AA8;
  --brand-l:#EAF0FF;
  --accent:#FF6A2B;
  --accent-d:#E4551B;
  --accent-2:#0FB5A0;
  --ink:#0F172A;
  --ink-2:#475569;
  --ink-3:#8A94A6;
  --border:#E4E9F2;
  --bg-soft:#F6F8FC;
  --card:#FFFFFF;
  --r-sm:8px;
  --r-md:12px;
  --r-lg:16px;
  --r-xl:24px;
  --r-pill:999px;
  --sh-1:0 1px 2px rgba(16,24,40,.04);
  --sh-2:0 10px 30px -12px rgba(16,24,40,.14);
  --sh-3:0 18px 40px -16px rgba(27,84,224,.26);
}

*{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  margin:0;
  font-family:system-ui,-apple-system,"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Segoe UI",sans-serif;
  font-size:16px;
  line-height:1.85;
  color:var(--ink);
  background:#fff;
  -webkit-font-smoothing:antialiased;
  font-variant-numeric:tabular-nums;
}
img{max-width:100%;display:block;}
a{color:var(--brand);text-decoration:none;transition:color .2s ease;}
a:hover{color:var(--accent-d);}
ul{list-style:none;margin:0;padding:0;}
h1,h2,h3,h4{margin:0;line-height:1.32;font-weight:700;letter-spacing:-.01em;}
p{margin:0 0 16px;}
p:last-child{margin-bottom:0;}
button{font-family:inherit;}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px;border-radius:4px;}

.container{
  width:100%;
  max-width:1200px;
  margin:0 auto;
  padding-left:20px;
  padding-right:20px;
}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  height:46px;
  padding:0 22px;
  font-size:15px;
  font-weight:600;
  border-radius:var(--r-md);
  border:1px solid transparent;
  transition:all .2s ease;
  white-space:nowrap;
  line-height:1;
}
.btn-accent{background:var(--accent);color:#fff;border-color:var(--accent);}
.btn-accent:hover{background:var(--accent-d);border-color:var(--accent-d);color:#fff;transform:translateY(-1px);box-shadow:var(--sh-3);}
.btn-accent:active{transform:none;box-shadow:inset 0 2px 6px rgba(0,0,0,.18);}
.btn-brand{background:var(--brand);color:#fff;border-color:var(--brand);}
.btn-brand:hover{background:var(--brand-d);border-color:var(--brand-d);color:#fff;transform:translateY(-1px);box-shadow:var(--sh-3);}
.btn-brand:active{transform:none;box-shadow:inset 0 2px 6px rgba(0,0,0,.18);}
.btn-outline-brand{background:transparent;color:var(--brand);border-color:var(--brand);}
.btn-outline-brand:hover{background:var(--brand-l);color:var(--brand-d);transform:translateY(-1px);}
.btn-outline-light{background:transparent;color:#fff;border-color:rgba(255,255,255,.7);}
.btn-outline-light:hover{background:rgba(255,255,255,.14);color:#fff;}
.btn-link{height:auto;padding:0;border:none;background:none;color:var(--brand);font-weight:600;}
.btn-link:hover{color:var(--accent-d);gap:12px;}
.btn-block{width:100%;}

/* ---------- 头部导航 ---------- */
.site-header{
  position:sticky;
  top:0;
  z-index:1040;
  background:#fff;
  border-bottom:1px solid var(--border);
  transition:box-shadow .25s ease, padding .25s ease;
}
.site-header.is-scrolled{box-shadow:var(--sh-2);}
.site-header .navbar{
  min-height:72px;
  padding:0;
  display:flex;
  align-items:center;
  flex-wrap:wrap;
  gap:12px;
}
.site-header.is-scrolled .navbar{min-height:64px;}
.brand{display:flex;align-items:center;gap:10px;padding:0;margin-right:8px;}
.brand-mark{
  width:34px;height:34px;
  display:inline-flex;align-items:center;justify-content:center;
  border-radius:10px;
  background:var(--brand);
  color:#fff;font-size:16px;
  box-shadow:0 6px 16px -8px rgba(27,84,224,.7);
}
.brand-text{font-size:19px;font-weight:700;color:var(--ink);letter-spacing:.01em;}
.brand:hover .brand-text{color:var(--brand-d);}
.navbar-toggler{
  border:1px solid var(--border);
  border-radius:var(--r-md);
  padding:8px 10px;
  margin-left:auto;
}
.navbar-toggler:focus{box-shadow:0 0 0 3px rgba(27,84,224,.14);}
.navbar-toggler-icon{width:20px;height:20px;}
.nav-center{gap:4px;}
.nav-center .nav-link{
  position:relative;
  font-size:15px;
  font-weight:500;
  color:var(--ink-2);
  padding:10px 14px;
  border-radius:var(--r-sm);
}
.nav-center .nav-link::after{
  content:"";
  position:absolute;
  left:50%;bottom:2px;
  width:0;height:2px;
  background:var(--brand);
  border-radius:2px;
  transform:translateX(-50%);
  transition:width .22s ease;
}
.nav-center .nav-link:hover{color:var(--brand);}
.nav-center .nav-link:hover::after{width:24px;}
.nav-center .nav-link.active{color:var(--brand);font-weight:600;}
.nav-center .nav-link.active::after{width:48px;}
.nav-actions{display:flex;align-items:center;gap:10px;}
.nav-actions .btn{height:42px;padding:0 20px;border-radius:var(--r-pill);font-size:14.5px;}

/* ---------- 横幅 ---------- */
.page-banner{
  position:relative;
  overflow:hidden;
  background:linear-gradient(135deg,var(--brand-l) 0%,#fff 62%);
  border-bottom:1px solid var(--border);
}
.page-banner .banner-inner{
  position:relative;
  z-index:2;
  padding:44px 0 52px;
  max-width:660px;
}
.banner-media{
  position:absolute;
  top:0;right:0;
  width:46%;
  height:100%;
  overflow:hidden;
  border-radius:var(--r-xl) 0 0 var(--r-xl);
  -webkit-mask-image:linear-gradient(90deg,transparent 0%,#000 34%);
  mask-image:linear-gradient(90deg,transparent 0%,#000 34%);
}
.banner-media img{
  width:100%;height:100%;
  object-fit:cover;
  aspect-ratio:16/10;
}
.breadcrumb{
  display:flex;
  align-items:center;
  gap:8px;
  font-size:14px;
  color:var(--ink-3);
  margin:0 0 16px;
  padding:0;
  background:none;
}
.breadcrumb a{color:var(--ink-3);}
.breadcrumb a:hover{color:var(--brand);}
.breadcrumb .current{color:var(--brand);font-weight:600;}
.breadcrumb .sep{color:#C3CBD9;}
.page-banner h1{
  font-size:clamp(30px,4.2vw,46px);
  line-height:1.24;
  color:var(--ink);
  margin-bottom:14px;
}
.page-banner h1 .hl{color:var(--brand);}
.banner-lead{
  font-size:17px;
  color:var(--ink-2);
  margin-bottom:20px;
}
.banner-points{
  display:flex;
  flex-wrap:wrap;
  gap:8px 20px;
  margin-bottom:22px;
}
.banner-points li{
  display:flex;align-items:center;gap:8px;
  font-size:14.5px;color:var(--ink-2);
}
.banner-points i{color:var(--accent-2);font-size:13px;}

/* ---------- 区块通用 ---------- */
.section{padding:88px 0;}
.section-soft{background:var(--bg-soft);}
.section-head{max-width:720px;margin-bottom:40px;}
.section-head.center{margin-left:auto;margin-right:auto;text-align:center;}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:12.5px;font-weight:600;
  color:var(--brand);
  background:var(--brand-l);
  border-radius:var(--r-pill);
  padding:5px 14px;
  margin-bottom:14px;
  letter-spacing:.02em;
}
.eyebrow i{font-size:11px;}
.section-head h2{
  font-size:clamp(24px,3vw,32px);
  line-height:1.32;
  margin-bottom:14px;
}
.section-head p{color:var(--ink-2);font-size:16.5px;}

/* ---------- 左右图文 ---------- */
.split{
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:56px;
  align-items:center;
}
.split-media{
  position:relative;
  border-radius:var(--r-xl);
  overflow:hidden;
  box-shadow:var(--sh-2);
  background:var(--brand-l);
}
.split-media img{width:100%;aspect-ratio:16/10;object-fit:cover;}
.split-media .media-tag{
  position:absolute;left:18px;bottom:18px;
  display:inline-flex;align-items:center;gap:8px;
  background:rgba(255,255,255,.94);
  border-radius:var(--r-pill);
  padding:7px 14px;
  font-size:13px;font-weight:600;color:var(--ink);
  box-shadow:var(--sh-1);
}
.split-media .media-tag .dot{
  width:8px;height:8px;border-radius:50%;
  background:var(--accent-2);
  box-shadow:0 0 0 3px rgba(15,181,160,.18);
}
.split-body h2{font-size:clamp(24px,2.8vw,30px);margin-bottom:16px;}
.split-body > p{color:var(--ink-2);font-size:16.5px;margin-bottom:20px;}
.check-list{display:grid;gap:14px;}
.check-list li{
  display:flex;gap:12px;
  padding:16px 18px;
  background:#fff;
  border:1px solid var(--border);
  border-radius:var(--r-md);
  box-shadow:var(--sh-1);
  transition:box-shadow .2s ease,transform .2s ease;
}
.check-list li:hover{box-shadow:var(--sh-2);transform:translateY(-2px);}
.check-list .ico{
  flex:0 0 26px;
  width:26px;height:26px;
  border-radius:50%;
  display:flex;align-items:center;justify-content:center;
  background:var(--brand-l);
  color:var(--brand);
  font-size:12px;
  margin-top:3px;
}
.check-list strong{display:block;font-size:16px;font-weight:600;margin-bottom:2px;}
.check-list span{font-size:14.5px;color:var(--ink-2);line-height:1.7;}

/* ---------- 步骤流程 ---------- */
.steps{
  display:grid;
  grid-template-columns:repeat(3,1fr);
  gap:28px;
  position:relative;
}
.step{
  position:relative;
  background:#fff;
  border-radius:var(--r-lg);
  padding:28px 24px 26px;
  box-shadow:var(--sh-2);
  transition:transform .22s ease,box-shadow .22s ease;
}
.step:hover{transform:translateY(-3px);box-shadow:var(--sh-3);}
.step::after{
  content:"";
  position:absolute;
  top:48px;right:-22px;
  width:16px;height:2px;
  background:linear-gradient(90deg,var(--brand-l),rgba(27,84,224,.45));
  border-radius:2px;
}
.step:last-child::after{display:none;}
.step-num{
  width:40px;height:40px;
  border-radius:50%;
  background:var(--brand);
  color:#fff;
  font-size:16px;
  font-weight:700;
  display:flex;align-items:center;justify-content:center;
  margin-bottom:16px;
  box-shadow:0 8px 20px -10px rgba(27,84,224,.9);
}
.step h3{font-size:19px;margin-bottom:8px;}
.step p{font-size:15px;color:var(--ink-2);margin:0;}

/* ---------- 要点卡片 2x2 ---------- */
.feature-grid{
  display:grid;
  grid-template-columns:repeat(2,1fr);
  gap:24px;
}
.feature-card{
  background:#fff;
  border-radius:var(--r-lg);
  padding:28px;
  box-shadow:var(--sh-2);
  transition:transform .22s ease,box-shadow .22s ease;
}
.feature-card:hover{transform:translateY(-3px);box-shadow:var(--sh-3);}
.feature-icon{
  width:44px;height:44px;
  border-radius:12px;
  background:var(--brand-l);
  color:var(--brand);
  display:flex;align-items:center;justify-content:center;
  font-size:18px;
  margin-bottom:16px;
}
.feature-card h3{font-size:20px;margin-bottom:10px;}
.feature-card p{font-size:15px;color:var(--ink-2);margin-bottom:14px;}
.tag-row{display:flex;flex-wrap:wrap;gap:8px;}
.tag{
  display:inline-flex;align-items:center;gap:6px;
  font-size:12.5px;font-weight:600;
  color:var(--brand);
  background:var(--brand-l);
  border-radius:var(--r-pill);
  padding:4px 12px;
}
.tag.tag-accent{color:var(--accent-d);background:#FFF1E9;}
.tag.tag-teal{color:#0A8C7D;background:#E6F7F4;}

/* ---------- 线路状态条 ---------- */
.status-bar{
  display:grid;
  grid-template-columns:repeat(4,1fr);
  background:#fff;
  border:1px solid var(--border);
  border-radius:var(--r-lg);
  overflow:hidden;
  margin-top:32px;
}
.status-item{
  padding:24px 22px;
  border-right:1px solid var(--border);
}
.status-item:last-child{border-right:none;}
.status-item .label{
  font-size:13.5px;color:var(--ink-3);margin-bottom:6px;
  display:flex;align-items:center;gap:8px;
}
.status-item .label .dot{
  width:7px;height:7px;border-radius:50%;background:var(--accent-2);
}
.status-item .value{
  font-size:26px;font-weight:700;color:var(--brand-d);line-height:1.2;
}
.status-item .value small{font-size:14px;font-weight:600;color:var(--ink-2);margin-left:4px;}

/* ---------- FAQ ---------- */
.faq-wrap{max-width:860px;margin:0 auto;}
.accordion-item{
  border:1px solid var(--border);
  border-radius:var(--r-md)!important;
  margin-bottom:14px;
  overflow:hidden;
  background:#fff;
  box-shadow:var(--sh-1);
}
.accordion-button{
  background:#fff;
  font-size:16.5px;
  font-weight:600;
  color:var(--ink);
  padding:18px 22px;
  box-shadow:none;
  border-left:3px solid transparent;
  transition:color .2s ease,background .2s ease,border-color .2s ease;
}
.accordion-button::after{
  content:"\f067";
  font-family:"Font Awesome 6 Free";
  font-weight:900;
  background-image:none;
  font-size:13px;
  color:var(--brand);
  width:auto;height:auto;
  transform:none;
  transition:transform .2s ease;
}
.accordion-button:not(.collapsed)::after{
  content:"\f068";
  transform:none;
}
.accordion-button:not(.collapsed){
  color:var(--brand-d);
  background:var(--brand-l);
  border-left-color:var(--brand);
  box-shadow:none;
}
.accordion-button:focus{box-shadow:0 0 0 3px rgba(27,84,224,.14);}
.accordion-body{
  padding:6px 22px 22px;
  font-size:15.5px;
  color:var(--ink-2);
  line-height:1.85;
  border-left:3px solid var(--brand);
}

/* ---------- CTA 条 ---------- */
.cta-band{
  background:var(--brand-d);
  border-radius:var(--r-xl);
  padding:44px 48px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:32px;
  color:#fff;
  position:relative;
  overflow:hidden;
  margin:0 auto;
}
.cta-band::after{
  content:"";
  position:absolute;
  right:-60px;top:-60px;
  width:240px;height:240px;
  border-radius:50%;
  background:rgba(255,106,43,.16);
}
.cta-band h2{
  font-size:clamp(22px,2.6vw,28px);
  color:#fff;
  margin-bottom:8px;
  position:relative;z-index:2;
}
.cta-band p{
  color:rgba(255,255,255,.78);
  font-size:15.5px;
  margin:0;
  position:relative;z-index:2;
}
.cta-actions{display:flex;gap:12px;flex-wrap:wrap;position:relative;z-index:2;}

/* ---------- 底部入口卡 ---------- */
.entry-card{
  display:flex;
  align-items:center;
  gap:24px;
  background:#fff;
  border:1px solid var(--border);
  border-radius:var(--r-lg);
  padding:24px;
  box-shadow:var(--sh-2);
  transition:transform .22s ease,box-shadow .22s ease;
}
.entry-card:hover{transform:translateY(-3px);box-shadow:var(--sh-3);}
.entry-card .thumb{
  flex:0 0 200px;
  border-radius:var(--r-md);
  overflow:hidden;
  background:var(--brand-l);
}
.entry-card .thumb img{width:100%;aspect-ratio:16/9;object-fit:cover;}
.entry-card .entry-body h3{font-size:20px;margin-bottom:8px;}
.entry-card .entry-body p{font-size:15px;color:var(--ink-2);margin-bottom:12px;}
.entry-card .entry-body .meta{
  display:flex;align-items:center;gap:14px;
  font-size:13.5px;color:var(--ink-3);
  margin-bottom:12px;
}
.entry-card .entry-body .meta i{color:var(--accent-2);font-size:12px;}

/* ---------- 页脚 ---------- */
.site-footer{
  background:var(--bg-soft);
  border-top:1px solid var(--border);
  padding-top:64px;
  margin-top:8px;
}
.footer-grid{
  display:grid;
  grid-template-columns:1.6fr 1fr 1fr 1.2fr;
  gap:40px;
  padding-bottom:44px;
}
.footer-brand{
  display:flex;align-items:center;gap:10px;
  font-size:18px;font-weight:700;
  margin-bottom:14px;
  color:var(--ink);
}
.footer-about{
  font-size:14.5px;
  color:var(--ink-2);
  line-height:1.8;
  margin:0;
}
.footer-col h4{
  font-size:15px;
  font-weight:700;
  margin-bottom:16px;
  color:var(--ink);
}
.footer-col ul{display:grid;gap:11px;}
.footer-col ul a{
  font-size:14px;
  color:var(--ink-3);
}
.footer-col ul a:hover{color:var(--brand);}
.footer-contact li{
  display:flex;align-items:center;gap:10px;
  font-size:14px;color:var(--ink-3);
}
.footer-contact i{color:var(--brand);font-size:14px;width:16px;text-align:center;}
.footer-bottom{
  border-top:1px solid var(--border);
  padding:20px 0 26px;
  display:flex;
  justify-content:space-between;
  flex-wrap:wrap;
  gap:10px;
  font-size:13.5px;
  color:var(--ink-3);
}

/* ---------- 响应式 ---------- */
@media (max-width:1199.98px){
  .container{max-width:1140px;}
  .split{gap:40px;}
}
@media (max-width:991.98px){
  .site-header .navbar{flex-wrap:wrap;padding:10px 0;}
  .navbar-collapse{
    flex-basis:100%;
    border-top:1px solid var(--border);
    margin-top:10px;
    padding-top:12px;
  }
  .nav-center{margin:0!important;gap:2px;}
  .nav-center .nav-link{padding:12px 6px;}
  .nav-center .nav-link::after{display:none;}
  .nav-center .nav-link.active{border-left:3px solid var(--brand);border-radius:4px;padding-left:12px;}
  .nav-actions{
    flex-direction:column;
    align-items:stretch;
    gap:10px;
    margin-top:14px;
    padding-top:14px;
    border-top:1px solid var(--border);
  }
  .nav-actions .btn{width:100%;height:46px;}
  .section{padding:64px 0;}
  .page-banner .banner-inner{padding:36px 0 40px;max-width:100%;}
  .banner-media{
    position:relative;
    width:100%;
    height:200px;
    border-radius:var(--r-lg);
    margin-bottom:24px;
    -webkit-mask-image:none;
    mask-image:none;
  }
  .banner-media img{aspect-ratio:16/9;}
  .split{grid-template-columns:1fr;gap:28px;}
  .steps{grid-template-columns:1fr;gap:18px;}
  .step::after{display:none;}
  .status-bar{grid-template-columns:repeat(2,1fr);}
  .status-item:nth-child(2){border-right:none;}
  .status-item:nth-child(1),
  .status-item:nth-child(2){border-bottom:1px solid var(--border);}
  .cta-band{flex-direction:column;align-items:flex-start;padding:36px 30px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
}
@media (max-width:767.98px){
  .section{padding:52px 0;}
  .feature-grid{grid-template-columns:1fr;gap:16px;}
  .entry-card{flex-direction:column;align-items:stretch;}
  .entry-card .thumb{flex:none;}
  .footer-grid{grid-template-columns:1fr;gap:28px;}
  .footer-bottom{flex-direction:column;}
  .split-body h2{font-size:23px;}
}
@media (max-width:519.98px){
  .container{padding-left:16px;padding-right:16px;}
  .page-banner h1{font-size:27px;}
  .banner-lead{font-size:15.5px;}
  .btn{width:100%;}
  .cta-actions{width:100%;flex-direction:column;}
  .status-bar{grid-template-columns:1fr;}
  .status-item{border-right:none;border-bottom:1px solid var(--border);}
  .status-item:last-child{border-bottom:none;}
  .step,.feature-card{padding:22px 18px;}
  .cta-band{padding:28px 20px;border-radius:var(--r-lg);}
}

/* roulang page: article */
:root{
  --brand:#1B54E0;
  --brand-d:#0E3AA8;
  --brand-l:#EAF0FF;
  --accent:#FF6A2B;
  --accent-d:#E5561A;
  --accent-2:#0FB5A0;
  --ink:#0F172A;
  --ink-2:#475569;
  --ink-3:#8A94A6;
  --border:#E4E9F2;
  --surface:#F6F8FC;
  --card:#FFFFFF;
  --r-sm:8px;
  --r-md:12px;
  --r-lg:16px;
  --r-xl:24px;
  --r-pill:999px;
  --sh-1:0 1px 2px rgba(16,24,40,.04);
  --sh-2:0 10px 30px -12px rgba(16,24,40,.14);
  --sh-3:0 18px 40px -16px rgba(27,84,224,.26);
  --sec:88px;
}
*{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  margin:0;
  font-family:system-ui,-apple-system,"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Segoe UI",sans-serif;
  font-size:16px;
  line-height:1.85;
  color:var(--ink);
  background:#fff;
  font-variant-numeric:tabular-nums;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;}
a{color:var(--brand);text-decoration:none;transition:color .2s ease;}
a:hover{color:var(--accent);}
ul,ol{margin:0;}
h1,h2,h3,h4{letter-spacing:.2px;}
.container{width:100%;max-width:1200px;margin:0 auto;padding-left:20px;padding-right:20px;}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px;border-radius:6px;}

/* ---------- 顶部导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:1030;background:#fff;
  border-bottom:1px solid var(--border);
  transition:box-shadow .25s ease;
}
.site-header.is-scrolled{box-shadow:var(--sh-2);}
.site-header .navbar{padding:0;height:72px;align-items:center;transition:height .25s ease;}
.site-header.is-scrolled .navbar{height:64px;}
.brand{display:flex;align-items:center;gap:10px;padding:0;text-decoration:none;}
.brand-mark{
  width:34px;height:34px;border-radius:10px;background:var(--brand);color:#fff;
  display:grid;place-items:center;font-size:15px;flex:0 0 auto;
}
.brand-text{font-size:19px;font-weight:700;color:var(--ink);white-space:nowrap;}
.brand:hover .brand-text{color:var(--brand);}
.nav-center{gap:2px;}
.navbar-nav .nav-link{
  position:relative;font-size:15px;font-weight:500;color:var(--ink-2);
  padding:10px 14px;border-radius:var(--r-sm);transition:color .2s ease;
}
.navbar-nav .nav-link::after{
  content:"";position:absolute;left:50%;bottom:2px;width:0;height:2px;
  background:var(--brand);border-radius:2px;transform:translateX(-50%);
  transition:width .22s ease;
}
.navbar-nav .nav-link:hover,
.navbar-nav .nav-link:focus{color:var(--brand);}
.navbar-nav .nav-link:hover::after,
.navbar-nav .nav-link.active::after{width:48px;}
.navbar-nav .nav-link.active{color:var(--brand);}
.nav-actions{display:flex;align-items:center;gap:12px;}
.navbar-toggler{
  border:1px solid var(--border);border-radius:var(--r-md);
  padding:6px 10px;box-shadow:none !important;
}
.navbar-toggler:focus{outline:2px solid var(--brand);outline-offset:2px;}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:44px;padding:0 22px;font-size:15px;font-weight:600;
  border-radius:var(--r-md);border:1px solid transparent;
  transition:transform .18s ease,background-color .18s ease,color .18s ease,box-shadow .18s ease;
}
.btn-accent{background:var(--accent);color:#fff;border-radius:var(--r-pill);}
.btn-accent:hover{background:var(--accent-d);color:#fff;transform:translateY(-1px);box-shadow:var(--sh-3);}
.btn-accent:active{transform:none;box-shadow:inset 0 2px 6px rgba(0,0,0,.14);}
.btn-outline-brand{
  background:#fff;color:var(--brand);border:1px solid var(--brand);
  border-radius:var(--r-pill);
}
.btn-outline-brand:hover{background:var(--brand-l);color:var(--brand-d);transform:translateY(-1px);box-shadow:var(--sh-2);}
.btn-brand{background:var(--brand);color:#fff;}
.btn-brand:hover{background:var(--brand-d);color:#fff;transform:translateY(-1px);box-shadow:var(--sh-3);}
.btn-ghost{background:var(--brand-l);color:var(--brand-d);}
.btn-ghost:hover{background:#dbe6ff;color:var(--brand-d);}
.btn[disabled],.btn.disabled{opacity:.4;pointer-events:none;}

/* ---------- 面包屑 ---------- */
.page-head{
  background:linear-gradient(180deg,var(--brand-l) 0%,#fff 100%);
  border-bottom:1px solid var(--border);
  padding:20px 0 18px;
}
.crumb{
  display:flex;align-items:center;flex-wrap:wrap;gap:8px;
  font-size:14px;color:var(--ink-3);line-height:1.6;
}
.crumb i{color:var(--brand);font-size:13px;}
.crumb a{color:var(--ink-3);}
.crumb a:hover{color:var(--brand);}
.crumb-sep{color:#C8D0E0;}
.crumb-cur{
  color:var(--brand);font-weight:600;max-width:60ch;
  overflow:hidden;text-overflow:ellipsis;white-space:nowrap;
}

/* ---------- 文章主体 ---------- */
.article-wrap{padding:44px 0 0;}
.post-head{padding-bottom:26px;border-bottom:1px solid var(--border);margin-bottom:32px;}
.badge-cat{
  display:inline-flex;align-items:center;gap:6px;
  background:var(--brand-l);color:var(--brand-d);
  font-size:13px;font-weight:600;padding:5px 14px;border-radius:var(--r-pill);
  margin-bottom:16px;
}
.post-head h1{
  font-size:clamp(24px,3vw,32px);line-height:1.42;font-weight:700;
  margin:0 0 16px;color:var(--ink);
}
.post-meta{
  display:flex;align-items:center;flex-wrap:wrap;gap:10px;
  font-size:14px;color:var(--ink-3);
}
.post-meta span{display:inline-flex;align-items:center;gap:6px;}
.post-meta i{color:var(--ink-3);}
.post-meta .dot{width:1px;height:12px;background:var(--border);display:inline-block;padding:0;}

/* ---------- 正文排版 ---------- */
.article-body{max-width:800px;font-size:17px;line-height:1.9;color:#1F2937;}
.article-body > *:first-child{margin-top:0;}
.article-body p{margin:0 0 18px;}
.article-body h2{
  font-size:26px;font-weight:700;line-height:1.4;color:var(--ink);
  margin:40px 0 16px;padding-left:14px;border-left:4px solid var(--brand);
}
.article-body h3{font-size:22px;font-weight:600;color:var(--brand-d);margin:30px 0 12px;line-height:1.45;}
.article-body h4{font-size:18px;font-weight:600;color:var(--ink);margin:24px 0 10px;}
.article-body ul,.article-body ol{margin:0 0 18px;padding-left:0;list-style:none;}
.article-body ol{counter-reset:li;}
.article-body ul li,.article-body ol li{
  position:relative;padding-left:22px;margin-bottom:10px;color:#1F2937;
}
.article-body ul li::before{
  content:"";position:absolute;left:4px;top:.75em;width:6px;height:6px;
  border-radius:50%;background:var(--brand);
}
.article-body ol li::before{
  counter-increment:li;content:counter(li);
  position:absolute;left:0;top:.25em;width:18px;height:18px;border-radius:50%;
  background:var(--brand-l);color:var(--brand-d);font-size:12px;font-weight:700;
  display:grid;place-items:center;line-height:1;
}
.article-body blockquote{
  margin:24px 0;padding:18px 22px;background:var(--brand-l);
  border-left:4px solid var(--brand);border-radius:0 var(--r-md) var(--r-md) 0;
  color:var(--ink-2);font-style:normal;
}
.article-body blockquote p:last-child{margin-bottom:0;}
.article-body img{border-radius:var(--r-md);margin:22px 0;box-shadow:var(--sh-1);}
.article-body figure{margin:22px 0;}
.article-body figcaption{font-size:14px;color:var(--ink-3);text-align:center;margin-top:8px;}
.article-body table{width:100%;border-collapse:collapse;margin:22px 0;font-size:15px;}
.article-body th{
  background:var(--brand-l);color:var(--brand-d);font-weight:600;
  text-align:left;padding:12px 14px;border-bottom:1px solid var(--border);
}
.article-body td{padding:12px 14px;border-bottom:1px solid var(--border);color:var(--ink-2);}
.article-body tbody tr:nth-child(even) td{background:#FAFBFE;}
.article-body a{color:var(--brand);text-decoration:underline;text-underline-offset:3px;}
.article-body a:hover{color:var(--accent);}
.article-body hr{border:0;border-top:1px solid var(--border);margin:32px 0;}
.article-body code{
  background:var(--surface);border:1px solid var(--border);border-radius:6px;
  padding:2px 6px;font-size:15px;color:var(--brand-d);
}

/* ---------- 空状态 ---------- */
.empty-state{
  background:var(--surface);border:1px dashed var(--border);border-radius:var(--r-lg);
  padding:56px 24px;text-align:center;
}
.empty-state i{font-size:34px;color:var(--brand);margin-bottom:14px;display:block;}
.empty-state h2{font-size:20px;margin:0 0 8px;color:var(--ink);}
.empty-state p{color:var(--ink-3);font-size:15px;margin:0 0 20px;}

/* ---------- 文末 ---------- */
.post-foot{margin-top:44px;max-width:800px;}
.back-line{font-size:15px;color:var(--ink-3);margin-bottom:24px;display:flex;align-items:center;gap:8px;}
.postnav{display:grid;grid-template-columns:1fr 1fr;gap:20px;}
.postnav-card{
  display:flex;align-items:center;gap:14px;background:var(--card);
  border-radius:var(--r-lg);box-shadow:var(--sh-2);padding:20px;
  transition:transform .2s ease,box-shadow .2s ease;
}
.postnav-card:hover{transform:translateY(-2px);box-shadow:var(--sh-3);}
.postnav-card .pn-icon{
  width:44px;height:44px;border-radius:var(--r-md);background:var(--brand-l);
  color:var(--brand);display:grid;place-items:center;font-size:16px;flex:0 0 auto;
}
.postnav-card h4{font-size:16px;margin:0 0 4px;color:var(--ink);font-weight:600;}
.postnav-card p{font-size:13px;color:var(--ink-3);margin:0;}
.postnav-card.next{justify-content:flex-end;text-align:right;}

/* ---------- 侧边栏 ---------- */
.sidebar{position:sticky;top:96px;}
.widget{
  background:var(--card);border-radius:var(--r-lg);box-shadow:var(--sh-2);
  padding:24px;margin-bottom:24px;
}
.widget-title{
  font-size:17px;font-weight:700;color:var(--ink);margin:0 0 18px;
  display:flex;align-items:center;gap:8px;
}
.widget-title::before{
  content:"";width:4px;height:16px;border-radius:2px;background:var(--brand);
}
.hot-item{display:flex;gap:14px;padding:14px 0;border-bottom:1px solid var(--border);}
.hot-item:first-of-type{padding-top:0;}
.hot-item:last-child{border-bottom:0;padding-bottom:0;}
.hot-thumb{
  width:80px;height:60px;flex:0 0 auto;border-radius:var(--r-md);
  overflow:hidden;background:var(--brand-l);
}
.hot-thumb img{width:100%;height:100%;object-fit:cover;}
.hot-item h4{
  font-size:15px;font-weight:600;line-height:1.55;margin:0 0 6px;color:var(--ink);
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.hot-item a:hover h4{color:var(--brand);}
.hot-item .hot-tag{font-size:12px;color:var(--ink-3);}
.cta-card{
  background:var(--brand);border-radius:var(--r-lg);padding:26px 24px;color:#fff;
}
.cta-card h3{font-size:19px;font-weight:700;margin:0 0 10px;color:#fff;line-height:1.5;}
.cta-card p{font-size:14px;color:rgba(255,255,255,.82);margin:0 0 18px;line-height:1.75;}
.cta-card .btn{width:100%;}
.tag-cloud{display:flex;flex-wrap:wrap;gap:10px;}
.tag{
  font-size:13px;color:var(--brand-d);background:var(--brand-l);
  border-radius:var(--r-pill);padding:6px 14px;transition:background .2s ease,color .2s ease;
}
.tag:hover{background:var(--brand);color:#fff;}

/* ---------- 相关推荐 ---------- */
.related{padding:var(--sec) 0 0;}
.sec-head{margin-bottom:32px;}
.sec-head .eyebrow{
  display:inline-block;font-size:13px;font-weight:600;color:var(--brand-d);
  background:var(--brand-l);border-radius:var(--r-pill);padding:5px 14px;margin-bottom:14px;
}
.sec-head h2{font-size:clamp(24px,3vw,32px);font-weight:700;margin:0;color:var(--ink);line-height:1.3;}
.related-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;}
.post-card{
  background:var(--card);border-radius:var(--r-lg);box-shadow:var(--sh-2);
  overflow:hidden;display:flex;flex-direction:column;
  transition:transform .2s ease,box-shadow .2s ease;
}
.post-card:hover{transform:translateY(-2px);box-shadow:var(--sh-3);}
.post-card-img{aspect-ratio:16/9;overflow:hidden;background:var(--brand-l);}
.post-card-img img{width:100%;height:100%;object-fit:cover;transition:transform .4s ease;}
.post-card:hover .post-card-img img{transform:scale(1.04);}
.post-card-body{padding:20px;display:flex;flex-direction:column;flex:1;}
.post-card .badge-cat{margin-bottom:12px;font-size:12px;}
.post-card h3{
  font-size:18px;font-weight:600;line-height:1.5;margin:0 0 10px;color:var(--ink);
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.post-card:hover h3{color:var(--brand);}
.post-card p{
  font-size:14px;color:var(--ink-2);line-height:1.75;margin:0 0 16px;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.post-card .meta{
  margin-top:auto;font-size:13px;color:var(--ink-3);
  display:flex;align-items:center;justify-content:space-between;gap:10px;
}
.post-card .meta i{color:var(--accent-2);margin-right:6px;}

/* ---------- 底部转化条 ---------- */
.cta-band{padding:var(--sec) 0 0;}
.cta-inner{
  background:var(--brand);border-radius:var(--r-xl);padding:48px;
  display:flex;align-items:center;justify-content:space-between;gap:32px;flex-wrap:wrap;
}
.cta-inner h2{font-size:clamp(22px,2.6vw,30px);font-weight:700;color:#fff;margin:0 0 10px;line-height:1.4;}
.cta-inner p{color:rgba(255,255,255,.84);font-size:16px;margin:0;max-width:56ch;}

/* ---------- 页脚 ---------- */
.site-footer{
  background:var(--surface);border-top:1px solid var(--border);
  padding:64px 0 0;margin-top:var(--sec);
}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.2fr;gap:40px;}
.footer-brand{display:flex;align-items:center;gap:10px;font-size:18px;font-weight:700;color:var(--ink);margin-bottom:14px;}
.footer-about{font-size:14px;color:var(--ink-3);line-height:1.85;margin:0;max-width:36ch;}
.footer-col h4{font-size:16px;font-weight:600;color:var(--ink);margin:0 0 16px;}
.footer-col ul{list-style:none;padding:0;margin:0;}
.footer-col li{margin-bottom:10px;}
.footer-col a{font-size:14px;color:var(--ink-3);}
.footer-col a:hover{color:var(--brand);}
.footer-contact li{display:flex;gap:10px;align-items:flex-start;font-size:14px;color:var(--ink-3);line-height:1.7;}
.footer-contact i{color:var(--brand);margin-top:5px;font-size:14px;}
.footer-bottom{
  display:flex;justify-content:space-between;align-items:center;flex-wrap:wrap;gap:12px;
  border-top:1px solid var(--border);margin-top:48px;padding:20px 0;
  font-size:13px;color:var(--ink-3);
}

/* ---------- 响应式 ---------- */
@media (max-width:1199.98px){
  .container{max-width:100%;}
}
@media (max-width:991.98px){
  :root{--sec:64px;}
  .site-header .navbar{height:66px;}
  .navbar-collapse{
    background:#fff;border-top:1px solid var(--border);
    margin-top:12px;padding:12px 0 18px;
  }
  .navbar-nav .nav-link{padding:12px 4px;font-size:16px;}
  .navbar-nav .nav-link::after{left:0;transform:none;}
  .navbar-nav .nav-link:hover::after,
  .navbar-nav .nav-link.active::after{width:32px;}
  .nav-actions{flex-direction:column;align-items:stretch;gap:10px;margin-top:14px;}
  .nav-actions .btn{width:100%;}
  .sidebar{position:static;margin-top:40px;}
  .related-grid{grid-template-columns:repeat(2,1fr);}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
  .cta-inner{padding:36px;flex-direction:column;align-items:flex-start;}
}
@media (max-width:767.98px){
  :root{--sec:52px;}
  .container{padding-left:16px;padding-right:16px;}
  .article-wrap{padding-top:32px;}
  .post-head h1{font-size:22px;}
  .article-body{font-size:16px;}
  .article-body h2{font-size:22px;margin-top:32px;}
  .article-body h3{font-size:19px;}
  .postnav{grid-template-columns:1fr;}
  .postnav-card.next{justify-content:flex-start;text-align:left;}
  .related-grid{grid-template-columns:1fr;}
  .footer-grid{grid-template-columns:1fr;}
  .footer-bottom{flex-direction:column;align-items:flex-start;}
  .widget{padding:20px;}
  .crumb-cur{white-space:normal;max-width:100%;}
}
@media (max-width:519.98px){
  .brand-text{font-size:17px;}
  .post-head{padding-bottom:20px;}
  .cta-inner{padding:28px 22px;}
  .empty-state{padding:40px 18px;}
}

/* roulang page: category2 */
:root{
  --brand:#1B54E0;
  --brand-d:#0E3AA8;
  --brand-l:#EAF0FF;
  --accent:#FF6A2B;
  --accent-d:#E2551A;
  --accent-2:#0FB5A0;
  --text:#0F172A;
  --text-2:#475569;
  --text-3:#8A94A6;
  --border:#E4E9F2;
  --bg-soft:#F6F8FC;
  --card:#FFFFFF;
  --r-sm:8px;
  --r-md:12px;
  --r-lg:16px;
  --r-xl:24px;
  --r-pill:999px;
  --sh-1:0 1px 2px rgba(16,24,40,.04);
  --sh-2:0 10px 30px -12px rgba(16,24,40,.14);
  --sh-3:0 18px 40px -16px rgba(27,84,224,.26);
  --bs-primary:#1B54E0;
  --bs-body-color:#0F172A;
  --bs-body-bg:#FFFFFF;
  --bs-border-radius:12px;
  --bs-link-color:#1B54E0;
  --bs-link-hover-color:#0E3AA8;
  --bs-font-sans-serif:system-ui,-apple-system,"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Segoe UI",sans-serif;
}

*,*::before,*::after{box-sizing:border-box;}

body{
  margin:0;
  font-family:system-ui,-apple-system,"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Segoe UI",sans-serif;
  font-size:16.5px;
  line-height:1.85;
  color:var(--text);
  background:#fff;
  -webkit-font-smoothing:antialiased;
}

img{max-width:100%;display:block;}
a{color:var(--brand);text-decoration:none;transition:color .2s ease;}
a:hover{color:var(--brand-d);}
ul,ol{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4{margin:0;font-weight:700;line-height:1.3;letter-spacing:.2px;}
p{margin:0 0 18px;color:var(--text-2);}
p:last-child{margin-bottom:0;}
button,input,select{font-family:inherit;font-size:inherit;}
.num{font-variant-numeric:tabular-nums;}

:focus-visible{outline:2px solid var(--brand);outline-offset:2px;border-radius:4px;}

.container{
  width:100%;
  max-width:1200px;
  margin:0 auto;
  padding-left:20px;
  padding-right:20px;
}

/* ============ Header ============ */
.site-header{
  position:sticky;
  top:0;
  z-index:1030;
  background:#fff;
  border-bottom:1px solid var(--border);
  transition:box-shadow .25s ease,padding .25s ease;
}
.site-header.is-scrolled{box-shadow:var(--sh-2);}
.site-header .navbar{padding:16px 0;transition:padding .25s ease;}
.site-header.is-scrolled .navbar{padding:8px 0;}

.brand{display:flex;align-items:center;gap:10px;padding:0;}
.brand-mark{
  width:34px;height:34px;flex:0 0 34px;
  display:flex;align-items:center;justify-content:center;
  border-radius:10px;
  background:var(--brand);
  color:#fff;font-size:16px;
  box-shadow:0 6px 16px -8px rgba(27,84,224,.75);
}
.brand-text{font-size:19px;font-weight:700;color:var(--text);letter-spacing:.4px;}

.navbar-nav.nav-center{gap:4px;}
.site-header .nav-link{
  position:relative;
  font-size:15px;font-weight:500;color:var(--text-2);
  padding:8px 12px;border-radius:var(--r-sm);
  transition:color .2s ease;
}
.site-header .nav-link::after{
  content:"";position:absolute;left:12px;right:12px;bottom:2px;height:2px;
  background:var(--brand);border-radius:2px;transform:scaleX(0);transform-origin:left;
  transition:transform .25s ease;
}
.site-header .nav-link:hover{color:var(--brand);}
.site-header .nav-link:hover::after{transform:scaleX(1);}
.site-header .nav-link.active{color:var(--brand);font-weight:600;}
.site-header .nav-link.active::after{transform:scaleX(1);}

.nav-actions{display:flex;align-items:center;gap:12px;}

.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:46px;padding:0 22px;
  font-size:15.5px;font-weight:600;
  border-radius:var(--r-md);
  border:1px solid transparent;
  cursor:pointer;
  transition:transform .2s ease,box-shadow .2s ease,background .2s ease,color .2s ease,border-color .2s ease;
}
.btn:active{transform:translateY(0);box-shadow:inset 0 2px 6px rgba(16,24,40,.14);}
.btn-accent{background:var(--accent);color:#fff;box-shadow:0 10px 24px -14px rgba(255,106,43,.9);}
.btn-accent:hover{background:var(--accent-d);color:#fff;transform:translateY(-1px);box-shadow:var(--sh-3);}
.btn-outline-brand{border-color:var(--brand);color:var(--brand);background:transparent;}
.btn-outline-brand:hover{background:var(--brand-l);color:var(--brand-d);transform:translateY(-1px);}
.btn-brand{background:var(--brand);color:#fff;}
.btn-brand:hover{background:var(--brand-d);color:#fff;transform:translateY(-1px);box-shadow:var(--sh-3);}
.btn-pill{border-radius:var(--r-pill);}
.btn-lg{height:50px;padding:0 26px;}

.nav-actions .btn{height:42px;padding:0 20px;font-size:15px;border-radius:var(--r-pill);}

.navbar-toggler{
  border:1px solid var(--border);
  border-radius:10px;
  padding:9px 11px;
  box-shadow:none;
}
.navbar-toggler:focus{box-shadow:0 0 0 3px var(--brand-l);}
.navbar-toggler-icon{
  width:22px;height:15px;display:block;position:relative;
  background-image:none;
}
.navbar-toggler-icon::before,
.navbar-toggler-icon::after{
  content:"";position:absolute;left:0;right:0;height:2px;border-radius:2px;background:var(--brand);
}
.navbar-toggler-icon::before{top:0;box-shadow:0 6.5px 0 var(--brand);}
.navbar-toggler-icon::after{bottom:0;}

/* ============ Banner ============ */
.page-banner{
  position:relative;
  overflow:hidden;
  background:linear-gradient(45deg,var(--brand-l) 0%,#fff 78%);
  border-bottom:1px solid var(--border);
}
.page-banner .banner-inner{
  position:relative;
  z-index:2;
  padding:64px 0 68px;
  max-width:660px;
}
.breadcrumb-line{
  display:flex;align-items:center;gap:8px;flex-wrap:wrap;
  font-size:14px;color:var(--text-3);
  margin-bottom:18px;
}
.breadcrumb-line a{color:var(--text-3);}
.breadcrumb-line a:hover{color:var(--brand);}
.breadcrumb-line .sep{color:#C4CCDA;}
.breadcrumb-line .current{color:var(--brand);font-weight:600;}

.page-banner h1{
  font-size:clamp(30px,4vw,46px);
  line-height:1.24;
  color:var(--text);
  margin-bottom:16px;
}
.page-banner h1 .hl{color:var(--brand);}
.banner-lead{
  font-size:17px;
  color:var(--text-2);
  margin-bottom:20px;
  max-width:560px;
}
.banner-link{
  display:inline-flex;align-items:center;gap:8px;
  font-size:15px;font-weight:600;color:var(--brand);
}
.banner-link i{font-size:13px;transition:transform .2s ease;}
.banner-link:hover i{transform:translateX(4px);}

.banner-media{
  position:absolute;right:0;top:0;bottom:0;width:44%;
  overflow:hidden;
}
.banner-media img{
  width:100%;height:100%;object-fit:cover;
  border-radius:var(--r-xl) 0 0 var(--r-xl);
  opacity:.92;
}
.banner-media::before{
  content:"";position:absolute;inset:0;z-index:1;
  background:linear-gradient(90deg,#fff 0%,rgba(255,255,255,.86) 34%,rgba(255,255,255,0) 76%);
}

/* ============ Section basics ============ */
.section{padding:88px 0;}
.section-soft{background:var(--bg-soft);}
.section-tight{padding:64px 0;}
.section-head{max-width:720px;margin-bottom:40px;}
.section-head.center{margin-left:auto;margin-right:auto;text-align:center;}
.eyebrow{
  display:inline-flex;align-items:center;gap:7px;
  font-size:12.5px;font-weight:600;letter-spacing:.6px;
  color:var(--brand);background:var(--brand-l);
  padding:6px 13px;border-radius:var(--r-pill);
  margin-bottom:16px;
}
.section-head h2{
  font-size:clamp(24px,2.6vw,32px);
  color:var(--text);
  margin-bottom:14px;
}
.section-head p{font-size:16.5px;color:var(--text-2);margin:0;}

/* ============ Stat strip ============ */
.stat-strip{
  display:grid;
  grid-template-columns:repeat(4,1fr);
  background:#fff;
  border:1px solid var(--border);
  border-radius:var(--r-lg);
  box-shadow:var(--sh-1);
  overflow:hidden;
}
.stat-item{
  padding:30px 24px;
  text-align:center;
  border-right:1px solid var(--border);
}
.stat-item:last-child{border-right:0;}
.stat-num{
  font-size:40px;font-weight:700;color:var(--brand);line-height:1.1;
  font-variant-numeric:tabular-nums;
  margin-bottom:6px;
}
.stat-num .unit{font-size:18px;font-weight:600;margin-left:2px;}
.stat-label{font-size:14px;color:var(--text-3);}

/* ============ Timeline ============ */
.timeline{
  position:relative;
  padding-left:34px;
  margin-top:8px;
}
.timeline::before{
  content:"";position:absolute;left:9px;top:8px;bottom:8px;width:2px;
  background:linear-gradient(180deg,var(--brand) 0%,var(--brand-l) 100%);
  border-radius:2px;
}
.tl-item{position:relative;padding-bottom:34px;}
.tl-item:last-child{padding-bottom:0;}
.tl-item::before{
  content:"";position:absolute;left:-34px;top:7px;
  width:20px;height:20px;border-radius:50%;
  background:#fff;border:4px solid var(--brand);
  box-shadow:0 0 0 4px var(--brand-l);
}
.tl-step{
  display:inline-block;
  font-size:12.5px;font-weight:600;color:var(--brand);
  background:var(--brand-l);border-radius:var(--r-pill);
  padding:4px 12px;margin-bottom:10px;
}
.tl-item h3{font-size:20px;margin-bottom:8px;color:var(--text);}
.tl-item p{font-size:16px;color:var(--text-2);margin:0;max-width:640px;}

/* ============ Scene cards ============ */
.grid-2{
  display:grid;
  grid-template-columns:repeat(2,1fr);
  gap:24px;
}
.scene-card{
  background:var(--card);
  border-radius:var(--r-lg);
  box-shadow:var(--sh-2);
  overflow:hidden;
  transition:transform .25s ease,box-shadow .25s ease;
  display:flex;flex-direction:column;
}
.scene-card:hover{transform:translateY(-2px);box-shadow:var(--sh-3);}
.scene-card .thumb{aspect-ratio:16/9;overflow:hidden;background:var(--brand-l);}
.scene-card .thumb img{
  width:100%;height:100%;object-fit:cover;
  transition:transform .4s ease;
}
.scene-card:hover .thumb img{transform:scale(1.04);}
.scene-body{padding:24px;flex:1;display:flex;flex-direction:column;}
.tag{
  display:inline-flex;align-items:center;gap:6px;
  font-size:12.5px;font-weight:600;color:var(--brand);
  background:var(--brand-l);border-radius:var(--r-pill);
  padding:4px 12px;margin-bottom:12px;align-self:flex-start;
}
.tag.teal{color:#0A7F71;background:#E4F7F4;}
.scene-body h3{font-size:21px;margin-bottom:10px;color:var(--text);}
.scene-body p{font-size:15.5px;color:var(--text-2);margin-bottom:18px;}
.scene-points{margin-bottom:20px;}
.scene-points li{
  display:flex;gap:10px;align-items:flex-start;
  font-size:15px;color:var(--text-2);padding:5px 0;
}
.scene-points li i{color:var(--accent-2);font-size:13px;margin-top:6px;}
.scene-link{
  margin-top:auto;
  font-size:15px;font-weight:600;color:var(--brand);
  display:inline-flex;align-items:center;gap:8px;
}
.scene-link i{font-size:13px;transition:transform .2s ease;}
.scene-link:hover i{transform:translateX(4px);}

/* ============ Compare table ============ */
.table-wrap{
  background:#fff;
  border:1px solid var(--border);
  border-radius:var(--r-lg);
  overflow:hidden;
  box-shadow:var(--sh-1);
}
table.compare{
  width:100%;
  border-collapse:collapse;
  font-size:15.5px;
}
table.compare thead th{
  background:var(--brand-l);
  color:var(--brand-d);
  font-weight:600;
  font-size:14.5px;
  text-align:left;
  padding:16px 22px;
  border-bottom:1px solid var(--border);
}
table.compare tbody td{
  padding:18px 22px;
  border-bottom:1px solid var(--border);
  color:var(--text-2);
  vertical-align:top;
}
table.compare tbody tr:last-child td{border-bottom:0;}
table.compare tbody tr:nth-child(even){background:#FAFBFF;}
table.compare td.strong{color:var(--text);font-weight:600;}
table.compare .dot{
  display:inline-block;width:7px;height:7px;border-radius:50%;
  background:var(--accent-2);margin-right:8px;vertical-align:middle;
}

/* ============ Quotes ============ */
.quote-grid{
  display:grid;
  grid-template-columns:1.35fr 1fr;
  gap:24px;
}
.quote-main{
  background:var(--brand);
  color:#fff;
  border-radius:var(--r-lg);
  padding:38px 34px;
  display:flex;flex-direction:column;justify-content:space-between;
  box-shadow:var(--sh-3);
}
.quote-main .quote-icon{font-size:24px;color:rgba(255,255,255,.55);margin-bottom:18px;}
.quote-main blockquote{
  margin:0 0 24px;
  font-size:19px;line-height:1.85;color:#fff;font-weight:500;
}
.quote-main .quote-meta{font-size:14px;color:rgba(255,255,255,.78);}
.quote-side{display:grid;grid-template-rows:1fr 1fr;gap:24px;}
.quote-card{
  background:#fff;
  border-radius:var(--r-lg);
  box-shadow:var(--sh-2);
  padding:26px 24px;
}
.quote-card blockquote{margin:0 0 14px;font-size:15.5px;color:var(--text-2);}
.quote-card .quote-meta{font-size:13.5px;color:var(--text-3);}
.quote-card .quote-meta strong{color:var(--brand);font-weight:600;}

/* ============ FAQ ============ */
.faq-list{display:grid;gap:14px;max-width:900px;margin:0 auto;}
.faq-item{
  background:#fff;
  border:1px solid var(--border);
  border-radius:var(--r-lg);
  box-shadow:var(--sh-1);
  overflow:hidden;
  transition:box-shadow .25s ease,border-color .25s ease;
}
.faq-item:hover{box-shadow:var(--sh-2);}
.faq-item.open{border-color:#CBDAFF;box-shadow:var(--sh-2);}
.faq-q{
  width:100%;
  min-height:58px;
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:16px 22px;
  background:transparent;border:0;
  text-align:left;
  font-size:16.5px;font-weight:600;color:var(--text);
  cursor:pointer;
  position:relative;
}
.faq-q:hover{color:var(--brand);}
.faq-item.open .faq-q{color:var(--brand);}
.faq-q::before{
  content:"";position:absolute;left:0;top:12px;bottom:12px;width:3px;
  border-radius:0 3px 3px 0;background:var(--brand);
  transform:scaleY(0);transform-origin:center;transition:transform .2s ease;
}
.faq-item.open .faq-q::before{transform:scaleY(1);}
.faq-icon{
  flex:0 0 26px;width:26px;height:26px;
  display:flex;align-items:center;justify-content:center;
  border-radius:50%;
  background:var(--brand-l);color:var(--brand);
  font-size:12px;
  transition:transform .2s ease,background .2s ease,color .2s ease;
}
.faq-item.open .faq-icon{background:var(--brand);color:#fff;transform:rotate(180deg);}
.faq-a{
  max-height:0;overflow:hidden;
  transition:max-height .25s ease,padding .25s ease;
  padding:0 22px;
}
.faq-item.open .faq-a{max-height:340px;padding:0 22px 22px;}
.faq-a p{font-size:15.5px;color:var(--text-2);margin:0;}

/* ============ CTA band ============ */
.cta-band{
  background:var(--brand-d);
  color:#fff;
  border-radius:var(--r-xl);
  padding:44px 44px;
  display:flex;align-items:center;justify-content:space-between;gap:32px;
  position:relative;overflow:hidden;
}
.cta-band h2{font-size:clamp(22px,2.4vw,30px);color:#fff;margin-bottom:10px;}
.cta-band p{color:rgba(255,255,255,.82);margin:0;font-size:16px;max-width:560px;}
.cta-band .btn-accent{flex:0 0 auto;}
.cta-band::after{
  content:"";position:absolute;right:-60px;top:-60px;width:240px;height:240px;
  border-radius:50%;background:rgba(255,255,255,.07);
}

/* ============ Related entry ============ */
.entry-card{
  display:grid;
  grid-template-columns:300px 1fr;
  gap:0;
  background:#fff;
  border-radius:var(--r-lg);
  box-shadow:var(--sh-2);
  overflow:hidden;
  transition:transform .25s ease,box-shadow .25s ease;
}
.entry-card:hover{transform:translateY(-2px);box-shadow:var(--sh-3);}
.entry-card .thumb{aspect-ratio:16/10;overflow:hidden;background:var(--brand-l);}
.entry-card .thumb img{width:100%;height:100%;object-fit:cover;}
.entry-body{padding:30px 32px;display:flex;flex-direction:column;justify-content:center;}
.entry-body h3{font-size:21px;margin-bottom:10px;}
.entry-body p{font-size:15.5px;margin-bottom:18px;}
.entry-meta{
  display:flex;align-items:center;gap:14px;flex-wrap:wrap;
  font-size:13.5px;color:var(--text-3);margin-bottom:16px;
}
.entry-meta span{display:inline-flex;align-items:center;gap:6px;}

/* ============ Footer ============ */
.site-footer{
  background:var(--bg-soft);
  border-top:1px solid var(--border);
  padding:64px 0 0;
  margin-top:88px;
}
.footer-grid{
  display:grid;
  grid-template-columns:1.6fr 1fr 1fr 1.2fr;
  gap:40px;
  padding-bottom:44px;
}
.footer-brand{
  display:flex;align-items:center;gap:10px;
  font-size:18px;font-weight:700;color:var(--text);
  margin-bottom:16px;
}
.footer-about{font-size:14.5px;color:var(--text-3);line-height:1.8;margin:0;}
.footer-col h4{
  font-size:15px;font-weight:600;color:var(--text);
  margin-bottom:18px;
}
.footer-col ul li{margin-bottom:11px;}
.footer-col ul a{font-size:14.5px;color:var(--text-3);}
.footer-col ul a:hover{color:var(--brand);}
.footer-contact li{
  display:flex;align-items:flex-start;gap:10px;
  font-size:14.5px;color:var(--text-3);margin-bottom:12px;
}
.footer-contact i{color:var(--brand);font-size:14px;margin-top:6px;}
.footer-bottom{
  border-top:1px solid var(--border);
  padding:20px 0 26px;
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:13.5px;color:var(--text-3);
}

/* ============ Responsive ============ */
@media (max-width:1199.98px){
  .banner-media{width:46%;}
}
@media (max-width:991.98px){
  .site-header .navbar{padding:12px 0;}
  .navbar-collapse{
    margin-top:14px;
    padding:16px;
    background:#fff;
    border:1px solid var(--border);
    border-radius:var(--r-lg);
    box-shadow:var(--sh-2);
  }
  .navbar-nav.nav-center{gap:2px;}
  .site-header .nav-link{padding:12px 10px;font-size:16px;}
  .site-header .nav-link::after{display:none;}
  .site-header .nav-link.active{background:var(--brand-l);}
  .nav-actions{
    flex-direction:column;
    align-items:stretch;
    gap:10px;
    margin-top:14px;
    padding-top:14px;
    border-top:1px solid var(--border);
  }
  .nav-actions .btn{width:100%;height:46px;border-radius:var(--r-md);}
  .page-banner .banner-inner{padding:48px 0 52px;max-width:100%;}
  .banner-media{position:relative;width:100%;height:220px;margin-top:8px;}
  .banner-media img{border-radius:var(--r-lg);}
  .banner-media::before{background:linear-gradient(180deg,#fff 0%,rgba(255,255,255,.35) 60%,rgba(255,255,255,0) 100%);}
  .section{padding:64px 0;}
  .grid-2{grid-template-columns:1fr;}
  .quote-grid{grid-template-columns:1fr;}
  .quote-side{grid-template-rows:auto;grid-template-columns:1fr;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
  .entry-card{grid-template-columns:1fr;}
  .cta-band{flex-direction:column;align-items:flex-start;padding:36px 28px;}
  .cta-band .btn-accent{width:100%;}
}
@media (max-width:767.98px){
  body{font-size:16px;}
  .container{padding-left:16px;padding-right:16px;}
  .section{padding:52px 0;}
  .stat-strip{grid-template-columns:1fr 1fr;}
  .stat-item{border-right:1px solid var(--border);}
  .stat-item:nth-child(2n){border-right:0;}
  .stat-item:nth-child(-n+2){border-bottom:1px solid var(--border);}
  .stat-num{font-size:32px;}
  .table-wrap{overflow-x:auto;}
  table.compare{min-width:560px;}
  .quote-main{padding:30px 24px;}
  .quote-main blockquote{font-size:17px;}
  .footer-grid{grid-template-columns:1fr;gap:28px;}
  .footer-bottom{flex-direction:column;align-items:flex-start;gap:8px;}
  .timeline{padding-left:28px;}
  .tl-item::before{left:-28px;width:16px;height:16px;border-width:3px;}
  .timeline::before{left:7px;}
}
@media (max-width:519.98px){
  .brand-text{font-size:17px;}
  .page-banner h1{font-size:27px;}
  .section-head h2{font-size:23px;}
  .scene-body{padding:20px;}
  .entry-body{padding:22px 20px;}
  .btn{width:100%;}
  .banner-link{width:auto;}
  .nav-actions .btn{width:100%;}
}

/* roulang page: category3 */
:root{
  --brand:#1B54E0;
  --brand-d:#0E3AA8;
  --brand-l:#EAF0FF;
  --accent:#FF6A2B;
  --accent-d:#E8551A;
  --accent-2:#0FB5A0;
  --ink:#0F172A;
  --ink-2:#475569;
  --ink-3:#8A94A6;
  --border:#E4E9F2;
  --bg-soft:#F6F8FC;
  --card:#FFFFFF;
  --r-sm:8px;
  --r-md:12px;
  --r-lg:16px;
  --r-xl:24px;
  --r-pill:999px;
  --sh-1:0 1px 2px rgba(16,24,40,.04);
  --sh-2:0 10px 30px -12px rgba(16,24,40,.14);
  --sh-3:0 18px 40px -16px rgba(27,84,224,.26);
  --bs-body-color:#0F172A;
  --bs-body-bg:#FFFFFF;
  --bs-border-color:#E4E9F2;
  --bs-primary:#1B54E0;
  --bs-link-color:#1B54E0;
  --bs-link-hover-color:#0E3AA8;
  --bs-border-radius:12px;
}
*,*::before,*::after{box-sizing:border-box;}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%;}
body{
  margin:0;
  font-family:system-ui,-apple-system,"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Segoe UI",sans-serif;
  font-size:17px;
  line-height:1.85;
  color:var(--ink);
  background:#fff;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;}
a{color:var(--brand);text-decoration:none;transition:color .18s ease;}
a:hover{color:var(--brand-d);}
h1,h2,h3,h4{color:var(--ink);margin:0;line-height:1.3;font-weight:700;}
p{margin:0 0 16px;}
ul{list-style:none;padding:0;margin:0;}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px;border-radius:4px;}
.container{width:100%;max-width:1200px;margin:0 auto;padding-left:20px;padding-right:20px;}
@media (min-width:1400px){.container{max-width:1280px;}}

/* ===== 按钮 ===== */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:46px;padding:0 22px;font-size:15px;font-weight:600;
  border-radius:var(--r-md);border:1px solid transparent;
  transition:background-color .18s ease,color .18s ease,transform .18s ease,box-shadow .18s ease;
  white-space:nowrap;
}
.btn:active{transform:translateY(0);box-shadow:inset 0 2px 6px rgba(16,24,40,.18);}
.btn-brand{background:var(--brand);color:#fff;}
.btn-brand:hover{background:var(--brand-d);color:#fff;transform:translateY(-1px);box-shadow:var(--sh-3);}
.btn-accent{background:var(--accent);color:#fff;border-radius:var(--r-pill);}
.btn-accent:hover{background:var(--accent-d);color:#fff;transform:translateY(-1px);box-shadow:var(--sh-3);}
.btn-outline-brand{background:#fff;color:var(--brand);border-color:var(--brand);border-radius:var(--r-pill);}
.btn-outline-brand:hover{background:var(--brand-l);color:var(--brand-d);border-color:var(--brand-d);transform:translateY(-1px);}
.btn-outline-light2{background:transparent;color:#fff;border-color:rgba(255,255,255,.6);}
.btn-outline-light2:hover{background:rgba(255,255,255,.12);color:#fff;border-color:#fff;}
.btn[disabled],.btn.disabled{opacity:.4;pointer-events:none;}

.text-link{display:inline-flex;align-items:center;gap:8px;font-size:15px;font-weight:600;color:var(--brand);}
.text-link i{font-size:12px;transition:transform .18s ease;}
.text-link:hover i{transform:translateX(4px);}
.text-link.on-dark{color:#fff;}
.text-link.on-dark:hover{color:#fff;}

/* ===== 导航 ===== */
.site-header{
  position:sticky;top:0;z-index:1030;background:#fff;
  border-bottom:1px solid var(--border);
  transition:box-shadow .22s ease;
}
.site-header.scrolled{box-shadow:var(--sh-2);}
.site-header .navbar{padding:0;min-height:72px;transition:min-height .22s ease;align-items:center;}
.site-header.scrolled .navbar{min-height:64px;}
.brand{display:flex;align-items:center;gap:10px;padding:0;margin-right:20px;}
.brand-mark{
  width:34px;height:34px;border-radius:10px;background:var(--brand);color:#fff;
  display:inline-flex;align-items:center;justify-content:center;font-size:15px;
  box-shadow:0 6px 14px -8px rgba(27,84,224,.9);flex:0 0 auto;
}
.brand-text{font-size:18px;font-weight:700;color:var(--ink);letter-spacing:.3px;}
.nav-center{gap:4px;}
.nav-center .nav-link{
  position:relative;font-size:15px;font-weight:500;color:var(--ink-2);
  padding:10px 14px;border-radius:var(--r-sm);transition:color .18s ease;
}
.nav-center .nav-link::after{
  content:"";position:absolute;left:50%;bottom:2px;width:48px;height:2px;border-radius:2px;
  background:var(--brand);transform:translateX(-50%) scaleX(0);transform-origin:center;
  transition:transform .2s ease;
}
.nav-center .nav-link:hover{color:var(--brand);}
.nav-center .nav-link:hover::after{transform:translateX(-50%) scaleX(1);}
.nav-center .nav-link.active{color:var(--brand);font-weight:600;}
.nav-center .nav-link.active::after{transform:translateX(-50%) scaleX(1);}
.nav-actions{display:flex;align-items:center;gap:10px;}
.nav-actions .btn{height:44px;padding:0 20px;font-size:15px;}
.navbar-toggler{
  border:1px solid var(--border);border-radius:var(--r-sm);padding:8px 10px;
}
.navbar-toggler:focus{box-shadow:none;outline:2px solid var(--brand);outline-offset:2px;}
.navbar-toggler-icon{
  width:22px;height:22px;
  background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 30 30'%3E%3Cpath stroke='%231B54E0' stroke-linecap='round' stroke-width='2.4' d='M4 8h22M4 15h22M4 22h22'/%3E%3C/svg%3E");
  background-size:100% 100%;
}
@media (max-width:991.98px){
  .site-header .navbar{min-height:64px;}
  .navbar-collapse{
    background:#fff;border-top:1px solid var(--border);
    margin-top:14px;padding:6px 0 18px;
  }
  .nav-center{gap:0;}
  .nav-center .nav-link{
    padding:14px 2px;font-size:16px;border-bottom:1px solid var(--border);border-radius:0;
  }
  .nav-center .nav-link::after{display:none;}
  .nav-actions{flex-direction:column;align-items:stretch;gap:10px;padding-top:18px;}
  .nav-actions .btn{width:100%;}
}

/* ===== 页面横幅 ===== */
.page-banner{position:relative;background:var(--brand-l);overflow:hidden;}
.page-banner .banner-img{
  position:absolute;right:0;top:0;width:56%;height:100%;object-fit:cover;z-index:0;
}
.page-banner::after{
  content:"";position:absolute;inset:0;z-index:1;
  background:linear-gradient(90deg,#EAF0FF 0%,#EAF0FF 44%,rgba(234,240,255,.72) 64%,rgba(234,240,255,.06) 100%);
}
.banner-inner{position:relative;z-index:2;padding:52px 0 60px;max-width:820px;}
.crumbs{display:flex;align-items:center;gap:10px;font-size:14px;color:var(--ink-3);margin-bottom:20px;}
.crumbs a{color:var(--ink-3);}
.crumbs a:hover{color:var(--brand);}
.crumbs .current{color:var(--brand);font-weight:600;}
.page-banner h1{
  font-size:clamp(28px,3.8vw,44px);line-height:1.28;font-weight:700;
  letter-spacing:-.2px;margin-bottom:16px;max-width:19ch;
}
.banner-lead{font-size:17px;color:var(--ink-2);margin-bottom:22px;}
@media (max-width:768px){
  .page-banner .banner-img{width:100%;opacity:.35;}
  .page-banner::after{background:linear-gradient(180deg,rgba(234,240,255,.82) 0%,rgba(234,240,255,.96) 60%,#EAF0FF 100%);}
  .banner-inner{padding:36px 0 44px;}
}

/* ===== 区块 ===== */
.section{padding:88px 0;}
.section.tight{padding:64px 0 88px;}
.section.soft{background:var(--bg-soft);}
.sec-head{max-width:720px;margin-bottom:44px;}
.sec-label{
  display:inline-flex;align-items:center;gap:8px;font-size:13px;font-weight:600;
  color:var(--brand);background:var(--brand-l);border-radius:var(--r-pill);
  padding:6px 14px;margin-bottom:16px;
}
.sec-head h2{font-size:clamp(24px,2.6vw,32px);margin-bottom:14px;}
.sec-head p{font-size:16px;color:var(--ink-2);margin:0;}
@media (max-width:991.98px){.section{padding:64px 0;}.section.tight{padding:48px 0 64px;}}
@media (max-width:768px){.section{padding:52px 0;}.section.tight{padding:40px 0 52px;}.sec-head{margin-bottom:32px;}}

/* ===== 规格摘要条 ===== */
.spec-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;}
.spec-item{
  background:#fff;border-radius:var(--r-lg);box-shadow:var(--sh-2);
  padding:26px 24px;transition:transform .2s ease,box-shadow .2s ease;
}
.spec-item:hover{transform:translateY(-2px);box-shadow:var(--sh-3);}
.spec-tag{
  display:inline-block;font-size:13px;font-weight:600;color:var(--brand);
  background:var(--brand-l);border-radius:var(--r-pill);padding:4px 12px;margin-bottom:14px;
}
.spec-num{
  font-size:clamp(28px,3vw,38px);font-weight:700;color:var(--accent);
  line-height:1.2;font-variant-numeric:tabular-nums;margin-bottom:10px;
}
.spec-item p{font-size:15px;color:var(--ink-2);margin:0;line-height:1.75;}
@media (max-width:991.98px){.spec-grid{grid-template-columns:1fr;gap:16px;}}

/* ===== 对照区 ===== */
.compare-left{background:#fff;border-radius:var(--r-lg);box-shadow:var(--sh-2);overflow:hidden;}
.item-row{
  display:flex;gap:18px;padding:22px 24px;border-bottom:1px solid var(--border);
  transition:background-color .18s ease;
}
.item-row:last-child{border-bottom:none;}
.item-row:hover{background:var(--brand-l);}
.item-row .idx{
  flex:0 0 auto;width:36px;height:36px;border-radius:10px;background:var(--brand-l);
  color:var(--brand);font-size:14px;font-weight:700;display:flex;align-items:center;justify-content:center;
  font-variant-numeric:tabular-nums;
}
.item-row h3{font-size:18px;font-weight:600;margin-bottom:6px;}
.item-row p{font-size:15px;color:var(--ink-2);margin:0;line-height:1.75;}
.sticky-card{
  background:#fff;border-radius:var(--r-lg);box-shadow:var(--sh-2);
  padding:28px 26px;border-top:3px solid var(--brand);
}
.sticky-card h3{font-size:20px;margin-bottom:14px;}
.sticky-card ul{margin:0 0 22px;}
.sticky-card li{
  display:flex;gap:10px;font-size:15px;color:var(--ink-2);line-height:1.7;
  padding:10px 0;border-bottom:1px dashed var(--border);
}
.sticky-card li:last-child{border-bottom:none;}
.sticky-card li i{color:var(--accent-2);font-size:13px;margin-top:6px;flex:0 0 auto;}
.sticky-card .btn{width:100%;}
@media (min-width:992px){.sticky-wrap{position:sticky;top:96px;}}
@media (max-width:768px){
  .item-row{padding:18px 18px;}
  .sticky-card{padding:22px 20px;}
}

/* ===== 图文交替 ===== */
.zigzag{padding:32px 0;}
.zigzag + .zigzag{border-top:1px solid var(--border);}
.zigzag .shot{
  border-radius:var(--r-xl);overflow:hidden;box-shadow:var(--sh-2);aspect-ratio:16/10;
}
.zigzag .shot img{width:100%;height:100%;object-fit:cover;transition:transform .4s ease;}
.zigzag:hover .shot img{transform:scale(1.03);}
.zigzag h3{font-size:clamp(20px,2.2vw,24px);margin-bottom:14px;}
.zigzag p{font-size:16px;color:var(--ink-2);}
.zigzag .tag-row{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:16px;}
.tag{
  display:inline-block;font-size:13px;font-weight:600;color:var(--brand);
  background:var(--brand-l);border-radius:var(--r-pill);padding:5px 13px;
}
.tag.teal{color:#0B8C7C;background:#E4F7F4;}

/* ===== FAQ ===== */
.faq-wrap .accordion-item{
  background:#fff;border:none;border-radius:var(--r-lg);box-shadow:var(--sh-1);
  margin-bottom:14px;overflow:hidden;
}
.faq-wrap .accordion-button{
  position:relative;display:flex;align-items:center;gap:16px;
  font-size:17px;font-weight:600;color:var(--ink);background:#fff;
  padding:20px 24px;box-shadow:none;transition:color .18s ease,background-color .18s ease;
}
.faq-wrap .accordion-button::after{display:none;}
.faq-wrap .accordion-button:not(.collapsed){color:var(--brand);background:#fff;}
.faq-wrap .accordion-button:not(.collapsed)::before{
  content:"";position:absolute;left:0;top:0;bottom:0;width:3px;background:var(--brand);
}
.faq-wrap .accordion-button:focus{box-shadow:none;outline:2px solid var(--brand);outline-offset:-3px;}
.faq-wrap .accordion-body{padding:0 24px 22px 24px;font-size:16px;color:var(--ink-2);line-height:1.85;}
.acc-icon{
  position:relative;margin-left:auto;flex:0 0 auto;width:28px;height:28px;border-radius:50%;
  background:var(--brand-l);
}
.acc-icon::before,.acc-icon::after{
  content:"";position:absolute;left:50%;top:50%;background:var(--brand);border-radius:2px;
  transform:translate(-50%,-50%);
}
.acc-icon::before{width:12px;height:2px;}
.acc-icon::after{width:2px;height:12px;transition:transform .2s ease;}
.accordion-button:not(.collapsed) .acc-icon::after{transform:translate(-50%,-50%) rotate(90deg);}

/* ===== 相关入口卡 ===== */
.entry-card{
  display:block;height:100%;background:#fff;border-radius:var(--r-lg);
  box-shadow:var(--sh-2);overflow:hidden;transition:transform .2s ease,box-shadow .2s ease;
}
.entry-card:hover{transform:translateY(-2px);box-shadow:var(--sh-3);}
.entry-card .thumb{aspect-ratio:16/9;overflow:hidden;background:var(--brand-l);}
.entry-card .thumb img{width:100%;height:100%;object-fit:cover;}
.entry-card .body{padding:22px 22px 24px;}
.entry-card h3{font-size:19px;font-weight:600;margin:12px 0 8px;color:var(--ink);}
.entry-card p{font-size:15px;color:var(--ink-2);margin:0 0 14px;line-height:1.75;}
.entry-card .go{font-size:14px;font-weight:600;color:var(--brand);}

/* ===== CTA 条 ===== */
.cta-band{
  background:var(--brand);border-radius:var(--r-xl);color:#fff;
  padding:44px 44px;display:flex;align-items:center;justify-content:space-between;gap:28px;
  box-shadow:var(--sh-2);
}
.cta-band h2{color:#fff;font-size:clamp(22px,2.4vw,28px);margin-bottom:10px;}
.cta-band p{color:rgba(255,255,255,.84);font-size:16px;margin:0;max-width:56ch;}
.cta-actions{display:flex;gap:12px;flex-wrap:wrap;}
@media (max-width:768px){
  .cta-band{flex-direction:column;align-items:flex-start;padding:32px 24px;}
  .cta-actions{width:100%;}
  .cta-actions .btn{width:100%;}
}

/* ===== 页脚 ===== */
.site-footer{background:var(--bg-soft);border-top:1px solid var(--border);padding:64px 0 24px;}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.1fr;gap:40px;}
.footer-brand{display:flex;align-items:center;gap:10px;font-size:18px;font-weight:700;color:var(--ink);margin-bottom:14px;}
.footer-about{font-size:14px;line-height:1.85;color:var(--ink-2);margin:0;}
.site-footer h4{font-size:15px;font-weight:600;margin:0 0 16px;color:var(--ink);}
.site-footer li{margin-bottom:10px;}
.site-footer li a{font-size:14px;color:var(--ink-2);}
.site-footer li a:hover{color:var(--brand);}
.footer-contact li{display:flex;gap:10px;align-items:flex-start;font-size:14px;color:var(--ink-2);}
.footer-contact i{color:var(--brand);margin-top:5px;font-size:14px;}
.footer-bottom{
  border-top:1px solid var(--border);margin-top:44px;padding-top:20px;
  display:flex;justify-content:space-between;gap:12px;flex-wrap:wrap;
  font-size:13px;color:var(--ink-3);
}
@media (max-width:991.98px){
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
}
@media (max-width:576px){
  .footer-grid{grid-template-columns:1fr;}
  .site-footer{padding-top:48px;}
}