/* roulang page: index */
:root{
  --c-primary:#1B62D6;
  --c-primary-dark:#1450B0;
  --c-primary-light:#E8F0FE;
  --c-accent:#FF7A2F;
  --c-accent-light:#FFF1E7;
  --c-teal:#12B5A8;
  --c-danger:#E5484D;
  --c-bg:#F5F8FC;
  --c-card:#FFFFFF;
  --c-dark:#0E2A4A;
  --c-title:#0E1F33;
  --c-text:#4A5B70;
  --c-muted:#8A98AA;
  --c-line:#E6EBF2;
  --r-card:16px;
  --r-btn:10px;
  --r-img:12px;
  --r-hero:20px;
  --sh-card:0 1px 2px rgba(14,42,74,.06),0 10px 24px -14px rgba(14,42,74,.14);
  --sh-hover:0 6px 16px rgba(14,42,74,.08),0 22px 40px -18px rgba(14,42,74,.22);
  --font-base:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Noto Sans SC",system-ui,sans-serif;
  --font-num:"Inter",-apple-system,"PingFang SC",sans-serif;
  --bs-primary:#1B62D6;
  --bs-primary-rgb:27,98,214;
  --bs-body-font-family:var(--font-base);
  --bs-body-color:#4A5B70;
  --bs-border-color:#E6EBF2;
  --bs-link-color:#1B62D6;
  --bs-link-hover-color:#1450B0;
  --bs-body-bg:#F5F8FC;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  background:var(--c-bg);
  color:var(--c-text);
  font-family:var(--font-base);
  font-size:16px;
  line-height:1.85;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{max-width:100%;display:block}
a{color:var(--c-primary);text-decoration:none;transition:color .2s ease}
a:hover{color:var(--c-primary-dark);text-decoration:none}
h1,h2,h3,h4,h5{margin:0;color:var(--c-title);font-weight:700;font-family:var(--font-base)}
p{margin:0}
ul{margin:0;padding:0;list-style:none}
button{font-family:inherit}
:focus-visible{outline:2px solid var(--c-primary);outline-offset:2px}
.container{
  max-width:1200px;
  padding-left:24px;
  padding-right:24px;
  margin-left:auto;
  margin-right:auto;
}
.section{padding:96px 0}
.section--tight{padding:64px 0}
.section--alt{background:#FFFFFF}
.section-head{margin-bottom:34px;display:flex;align-items:flex-end;justify-content:space-between;gap:24px;flex-wrap:wrap}
.section-head h2{
  font-size:clamp(22px,2.4vw,32px);
  line-height:1.3;
  display:flex;
  align-items:center;
  gap:10px;
}
.section-head h2::before{
  content:"";
  width:4px;
  height:18px;
  border-radius:2px;
  background:var(--c-primary);
  display:inline-block;
  flex:0 0 4px;
}
.section-head .head-desc{
  margin-top:12px;
  max-width:660px;
  font-size:15px;
  color:var(--c-muted);
}
.head-link{font-size:15px;font-weight:500;display:inline-flex;align-items:center;gap:6px}
.head-link i{font-size:13px;transition:transform .2s ease}
.head-link:hover i{transform:translateX(3px)}
.eyebrow{
  display:inline-flex;
  align-items:center;
  gap:8px;
  font-size:13px;
  font-weight:600;
  color:var(--c-primary);
  background:var(--c-primary-light);
  border-radius:999px;
  padding:6px 14px;
  margin-bottom:16px;
}
.eyebrow.is-accent{color:#B44B0C;background:var(--c-accent-light)}
.grid2{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:24px}
.grid3{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px}
.grid4{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:24px}

/* ---------- header ---------- */
.site-header{
  position:sticky;
  top:0;
  z-index:1030;
  background:#FFFFFF;
  border-bottom:1px solid var(--c-line);
  transition:box-shadow .25s ease;
}
.site-header.is-scrolled{box-shadow:0 6px 22px -14px rgba(14,42,74,.35)}
.header-inner{
  position:relative;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:18px;
  height:68px;
  transition:height .25s ease;
}
.site-header.is-scrolled .header-inner{height:60px}
.header-tint{
  position:absolute;
  top:0;
  bottom:0;
  right:0;
  width:38%;
  background:rgba(27,98,214,.05);
  border-left:1px solid rgba(27,98,214,.14);
  pointer-events:none;
}
.header-left,.header-right{position:relative;display:flex;align-items:center;gap:28px;min-width:0}
.brand{display:inline-flex;align-items:center;gap:10px;flex:0 0 auto}
.brand-mark{
  width:38px;height:38px;
  border-radius:11px;
  background:linear-gradient(135deg,var(--c-primary) 0%,#2C7BF0 100%);
  color:#fff;
  font-family:var(--font-num);
  font-size:15px;
  font-weight:700;
  letter-spacing:.02em;
  display:inline-flex;
  align-items:center;
  justify-content:center;
  box-shadow:0 8px 18px -10px rgba(27,98,214,.9);
}
.brand-text{font-size:17px;font-weight:700;color:var(--c-title);white-space:nowrap}
.brand-text em{font-style:normal;color:var(--c-primary)}
.nav-main{display:flex;align-items:center;gap:8px}
.nav-main a{
  position:relative;
  font-size:16px;
  font-weight:500;
  color:var(--c-text);
  padding:8px 4px;
  white-space:nowrap;
}
.nav-main a::after{
  content:"";
  position:absolute;
  left:0;right:0;bottom:-2px;
  height:2px;
  border-radius:2px;
  background:transparent;
  transition:background .2s ease;
}
.nav-main a:hover{color:var(--c-primary)}
.nav-main a.active{color:var(--c-primary)}
.nav-main a.active::after{background:var(--c-primary)}
.header-right .nav-sep{width:1px;height:26px;background:var(--c-line)}
.search-box{
  display:flex;
  align-items:center;
  gap:8px;
  background:#F1F4F9;
  border:1px solid transparent;
  border-radius:var(--r-btn);
  padding:0 12px;
  height:40px;
  width:210px;
  transition:border-color .2s ease,background .2s ease,box-shadow .2s ease;
}
.search-box:focus-within{background:#fff;border-color:var(--c-primary);box-shadow:0 0 0 3px rgba(27,98,214,.12)}
.search-box i{color:var(--c-muted);font-size:14px}
.search-box input{border:0;background:transparent;outline:none;font-size:14px;color:var(--c-title);width:100%}
.search-box input::placeholder{color:var(--c-muted)}
.btn-main,.btn-outline-main,.btn-ghost-light{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  border-radius:var(--r-btn);
  font-size:15px;
  font-weight:600;
  padding:12px 26px;
  border:1.5px solid transparent;
  cursor:pointer;
  transition:transform .2s ease,box-shadow .2s ease,background .2s ease,color .2s ease,border-color .2s ease;
  white-space:nowrap;
}
.btn-main{background:var(--c-primary);color:#fff;box-shadow:0 10px 22px -14px rgba(27,98,214,.95)}
.btn-main:hover{background:var(--c-primary-dark);color:#fff;transform:translateY(-1px);box-shadow:0 14px 26px -14px rgba(27,98,214,1)}
.btn-outline-main{background:#fff;color:var(--c-primary);border-color:var(--c-primary)}
.btn-outline-main:hover{background:var(--c-primary-light);color:var(--c-primary-dark);border-color:var(--c-primary-dark);transform:translateY(-1px)}
.btn-ghost-light{background:rgba(255,255,255,.08);color:#fff;border-color:rgba(255,255,255,.45)}
.btn-ghost-light:hover{background:#fff;color:var(--c-dark);border-color:#fff}
.btn-accent{background:var(--c-accent);color:#fff;box-shadow:0 10px 22px -14px rgba(255,122,47,1)}
.btn-accent:hover{background:#EA6A1F;color:#fff;transform:translateY(-1px)}
.btn-sm-main{padding:9px 18px;font-size:14px}
.mobile-toggle{
  display:none;
  width:42px;height:42px;
  align-items:center;justify-content:center;
  border:1px solid var(--c-line);
  border-radius:var(--r-btn);
  background:#fff;
  color:var(--c-title);
  font-size:17px;
}
/* offcanvas */
.offcanvas.drawer{
  --bs-offcanvas-width:300px;
  background:#fff;
  border-left:0;
}
.drawer-head{display:flex;align-items:center;justify-content:space-between;padding:20px 20px 12px}
.drawer-body{padding:8px 20px 26px}
.drawer-nav{display:flex;flex-direction:column;gap:4px;margin-bottom:22px}
.drawer-nav a{
  padding:12px 14px;
  border-radius:var(--r-btn);
  font-size:16px;
  font-weight:500;
  color:var(--c-text);
  background:#F7F9FC;
}
.drawer-nav a.active{color:var(--c-primary);background:var(--c-primary-light);font-weight:600}
.drawer-nav a:hover{color:var(--c-primary)}
.drawer-foot{display:flex;flex-direction:column;gap:12px}
.drawer-foot .btn-main,.drawer-foot .btn-outline-main{width:100%}

/* ---------- hero ---------- */
.hero{padding:64px 0 72px;background:#FFFFFF}
.hero-inner{display:grid;grid-template-columns:1fr 1fr;gap:48px;align-items:center}
.hero-title{
  font-size:clamp(28px,4vw,44px);
  line-height:1.22;
  font-weight:700;
  letter-spacing:0;
}
.hero-title span{color:var(--c-primary)}
.hero-sub{
  margin-top:18px;
  font-size:17px;
  color:var(--c-text);
  max-width:34em;
}
.hero-cta{display:flex;gap:12px;margin-top:28px;flex-wrap:wrap}
.trust-row{display:flex;gap:26px;margin-top:34px;flex-wrap:wrap;padding-top:24px;border-top:1px solid var(--c-line)}
.trust-item{display:flex;align-items:center;gap:9px;font-size:14px;color:var(--c-text);font-weight:500}
.trust-item i{color:var(--c-teal);font-size:15px}
.hero-media{position:relative}
.hero-media img{
  width:100%;
  aspect-ratio:4/3;
  object-fit:cover;
  border-radius:var(--r-hero);
  box-shadow:0 24px 54px -26px rgba(14,42,74,.45);
}
.hero-badge{
  position:absolute;
  left:-16px;
  bottom:22px;
  background:#fff;
  border:1px solid var(--c-line);
  border-radius:14px;
  padding:12px 18px;
  box-shadow:var(--sh-card);
  display:flex;
  align-items:center;
  gap:12px;
}
.hero-badge .num{font-family:var(--font-num);font-size:22px;font-weight:700;color:var(--c-primary);font-variant-numeric:tabular-nums;line-height:1}
.hero-badge .txt{font-size:13px;color:var(--c-muted);line-height:1.4}

/* ---------- stats ---------- */
.stats-bar{
  background:var(--c-dark);
  border-radius:var(--r-hero);
  padding:34px 40px;
  display:grid;
  grid-template-columns:repeat(4,minmax(0,1fr));
  gap:24px;
  color:#fff;
}
.stat-item .stat-num{
  font-family:var(--font-num);
  font-size:clamp(24px,2.6vw,34px);
  font-weight:700;
  font-variant-numeric:tabular-nums;
  line-height:1.2;
  color:#fff;
}
.stat-item .stat-num small{font-size:15px;font-weight:500;margin-left:4px;color:rgba(255,255,255,.7)}
.stat-item .stat-label{font-size:14px;color:rgba(255,255,255,.72);margin-top:6px}
.stat-item + .stat-item{border-left:1px solid rgba(255,255,255,.14);padding-left:24px}

/* ---------- tier ---------- */
.tier-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:24px;align-items:end}
.tier-card{
  position:relative;
  background:var(--c-card);
  border:1px solid var(--c-line);
  border-radius:var(--r-card);
  padding:28px 24px 26px 28px;
  box-shadow:var(--sh-card);
  overflow:hidden;
  transition:transform .2s ease,box-shadow .2s ease;
}
.tier-card::before{
  content:"";
  position:absolute;
  left:0;top:0;bottom:0;
  width:4px;
  border-radius:4px;
  background:var(--c-primary-light);
}
.tier-card:nth-child(2)::before{background:rgba(27,98,214,.45)}
.tier-card:nth-child(3)::before{background:var(--c-primary)}
.tier-card:nth-child(4)::before{background:var(--c-accent)}
.tier-card:nth-child(1){padding-bottom:34px}
.tier-card:nth-child(2){padding-bottom:42px}
.tier-card:nth-child(3){padding-bottom:52px}
.tier-card:nth-child(4){padding-bottom:62px}
.tier-card:hover{transform:translateY(-4px);box-shadow:var(--sh-hover)}
.tier-card--featured{border-color:var(--c-accent);box-shadow:0 2px 4px rgba(255,122,47,.1),0 22px 44px -22px rgba(255,122,47,.5)}
.tier-top{display:flex;align-items:center;justify-content:space-between;gap:12px}
.tier-index{
  width:32px;height:32px;
  border-radius:999px;
  background:var(--c-primary-light);
  color:var(--c-primary);
  font-family:var(--font-num);
  font-size:14px;
  font-weight:700;
  display:inline-flex;align-items:center;justify-content:center;
}
.tier-badge{
  font-size:12px;font-weight:600;color:#B44B0C;background:var(--c-accent-light);
  border-radius:999px;padding:4px 12px;
}
.tier-name{font-size:19px;font-weight:700;margin-top:16px}
.tier-sub{font-size:13px;color:var(--c-muted);margin-top:6px}
.tier-list{margin-top:18px;display:flex;flex-direction:column;gap:10px}
.tier-list li{display:flex;gap:9px;font-size:14.5px;color:var(--c-text);line-height:1.6}
.tier-list li i{color:var(--c-primary);font-size:13px;margin-top:6px;flex:0 0 13px}
.tier-foot{margin-top:22px;padding-top:16px;border-top:1px dashed var(--c-line);font-size:13px;color:var(--c-muted)}

/* ---------- plans ---------- */
.plan-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:24px;align-items:stretch}
.plan-card{
  position:relative;
  background:var(--c-card);
  border:1px solid var(--c-line);
  border-radius:var(--r-card);
  padding:30px 24px 26px;
  box-shadow:var(--sh-card);
  display:flex;
  flex-direction:column;
  transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.plan-card:hover{transform:translateY(-4px);box-shadow:var(--sh-hover)}
.plan-card--featured{
  border:1.5px solid var(--c-primary);
  transform:translateY(-8px);
  box-shadow:0 8px 20px rgba(27,98,214,.08),0 26px 48px -22px rgba(27,98,214,.5);
}
.plan-card--featured:hover{transform:translateY(-12px)}
.plan-flag{
  position:absolute;
  top:-13px;left:50%;
  transform:translateX(-50%);
  background:var(--c-accent);
  color:#fff;
  font-size:12px;
  font-weight:600;
  padding:4px 14px;
  border-radius:999px;
  white-space:nowrap;
}
.plan-name{font-size:18px;font-weight:700}
.plan-desc{font-size:13px;color:var(--c-muted);margin-top:6px;min-height:38px}
.plan-price{
  margin-top:16px;
  display:flex;
  align-items:baseline;
  gap:6px;
  font-family:var(--font-num);
  font-variant-numeric:tabular-nums;
}
.plan-price .cur{font-size:16px;font-weight:600;color:var(--c-primary)}
.plan-price .num{font-size:36px;font-weight:700;color:var(--c-title);line-height:1}
.plan-price .unit{font-size:13px;color:var(--c-muted);font-family:var(--font-base)}
.plan-divider{height:1px;background:var(--c-line);margin:20px 0}
.plan-features{display:flex;flex-direction:column;gap:11px;flex:1}
.plan-features li{display:flex;gap:9px;font-size:14.5px;line-height:1.6}
.plan-features li i{margin-top:6px;flex:0 0 13px;font-size:13px}
.feat-yes i{color:var(--c-primary)}
.feat-no{color:var(--c-muted)}
.feat-no i{color:var(--c-muted)}
.plan-btn{margin-top:24px;width:100%}

/* ---------- flash ---------- */
.flash-strip{
  position:relative;
  border-radius:var(--r-hero);
  overflow:hidden;
  background-image:linear-gradient(100deg,rgba(14,42,74,.96) 0%,rgba(14,42,74,.9) 45%,rgba(27,98,214,.86) 100%),url('/assets/images/backpic/back-3.png');
  background-size:cover;
  background-position:center;
  padding:34px 40px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:32px;
  color:#fff;
}
.flash-title{font-size:clamp(20px,2.1vw,26px);color:#fff;font-weight:700}
.flash-text{font-size:14.5px;color:rgba(255,255,255,.78);margin-top:8px;max-width:34em}
.countdown{display:flex;gap:12px;margin-top:20px}
.cd-cell{
  min-width:64px;
  background:rgba(255,255,255,.1);
  border:1px solid rgba(255,255,255,.18);
  border-radius:12px;
  padding:8px 10px;
  text-align:center;
}
.cd-num{font-family:var(--font-num);font-variant-numeric:tabular-nums;font-size:22px;font-weight:700;color:#fff;line-height:1.2}
.cd-unit{font-size:12px;color:rgba(255,255,255,.65)}
.flash-cta{flex:0 0 auto;display:flex;flex-direction:column;gap:10px;align-items:stretch;min-width:190px}

/* ---------- entry cards ---------- */
.entry-card{
  display:block;
  background:var(--c-card);
  border:1px solid var(--c-line);
  border-radius:var(--r-card);
  overflow:hidden;
  box-shadow:var(--sh-card);
  transition:transform .22s ease,box-shadow .22s ease;
}
.entry-card:hover{transform:translateY(-4px);box-shadow:var(--sh-hover)}
.entry-media{position:relative;overflow:hidden}
.entry-media img{width:100%;aspect-ratio:16/9;object-fit:cover;transition:transform .35s ease}
.entry-card:hover .entry-media img{transform:scale(1.03)}
.entry-body{padding:24px 26px 26px}
.entry-body h3{font-size:20px;font-weight:700}
.entry-body p{margin-top:10px;font-size:15px;color:var(--c-text)}
.entry-tags{display:flex;gap:8px;flex-wrap:wrap;margin-top:16px}
.badge-pill{
  display:inline-flex;align-items:center;gap:6px;
  font-size:12px;font-weight:500;
  border-radius:999px;
  padding:4px 12px;
}
.badge-teal{background:rgba(18,181,168,.12);color:#0A8378}
.badge-primary{background:var(--c-primary-light);color:var(--c-primary)}
.badge-accent{background:var(--c-accent-light);color:#B44B0C}
.entry-more{margin-top:18px;font-size:14px;font-weight:600;color:var(--c-primary);display:inline-flex;align-items:center;gap:6px}
.entry-card:hover .entry-more i{transform:translateX(3px)}
.entry-more i{transition:transform .2s ease;font-size:12px}

/* ---------- posts ---------- */
.post-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px}
.post-card{
  background:var(--c-card);
  border:1px solid var(--c-line);
  border-radius:var(--r-card);
  overflow:hidden;
  box-shadow:var(--sh-card);
  display:flex;
  flex-direction:column;
  transition:transform .22s ease,box-shadow .22s ease;
}
.post-card:hover{transform:translateY(-4px);box-shadow:var(--sh-hover)}
.post-media{overflow:hidden;background:#EDF2F8}
.post-media img{width:100%;aspect-ratio:16/9;object-fit:cover;transition:transform .35s ease}
.post-card:hover .post-media img{transform:scale(1.03)}
.post-body{padding:20px 22px 22px;display:flex;flex-direction:column;flex:1}
.post-title{
  font-size:17px;
  font-weight:700;
  line-height:1.5;
  display:-webkit-box;
  -webkit-line-clamp:2;
  -webkit-box-orient:vertical;
  overflow:hidden;
  transition:color .2s ease;
}
.post-card:hover .post-title{color:var(--c-primary)}
.post-excerpt{
  margin-top:10px;
  font-size:14px;
  color:var(--c-text);
  line-height:1.7;
  display:-webkit-box;
  -webkit-line-clamp:3;
  -webkit-box-orient:vertical;
  overflow:hidden;
  flex:1;
}
.post-meta{
  margin-top:16px;
  padding-top:14px;
  border-top:1px solid var(--c-line);
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:12px;
  font-size:13px;
  color:var(--c-muted);
}
.post-meta span{display:inline-flex;align-items:center;gap:6px}
.post-meta i{font-size:13px}
.post-link{position:absolute;inset:0;z-index:2}
.post-card-wrap{position:relative}
.empty-state{
  grid-column:1/-1;
  background:#fff;
  border:1px dashed var(--c-line);
  border-radius:var(--r-card);
  padding:56px 24px;
  text-align:center;
}
.empty-state i{font-size:30px;color:var(--c-muted)}
.empty-state p{margin-top:14px;font-size:15px;color:var(--c-muted)}
.empty-state .btn-outline-main{margin-top:20px}

/* ---------- feedback ---------- */
.fb-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px}
.fb-card{
  background:var(--c-card);
  border:1px solid var(--c-line);
  border-radius:var(--r-card);
  padding:26px 26px 24px;
  box-shadow:var(--sh-card);
  transition:transform .2s ease,box-shadow .2s ease;
}
.fb-card:hover{transform:translateY(-4px);box-shadow:var(--sh-hover)}
.fb-stars{color:var(--c-accent);font-size:13px;letter-spacing:2px}
.fb-text{margin-top:14px;font-size:15px;color:var(--c-text);line-height:1.8}
.fb-user{display:flex;align-items:center;gap:12px;margin-top:20px;padding-top:18px;border-top:1px solid var(--c-line)}
.fb-avatar{
  width:40px;height:40px;border-radius:999px;
  background:var(--c-primary-light);color:var(--c-primary);
  display:inline-flex;align-items:center;justify-content:center;
  font-weight:700;font-size:15px;
}
.fb-name{font-size:14.5px;font-weight:600;color:var(--c-title)}
.fb-role{font-size:12.5px;color:var(--c-muted)}

/* ---------- faq ---------- */
.faq-wrap{display:grid;grid-template-columns:4fr 8fr;gap:48px;align-items:start}
.faq-aside p{margin-top:14px;font-size:15px;color:var(--c-text)}
.faq-aside .btn-outline-main{margin-top:24px}
.faq-accordion .accordion-item{
  background:#fff;
  border:1px solid var(--c-line);
  border-radius:var(--r-card) !important;
  margin-bottom:14px;
  overflow:hidden;
  box-shadow:var(--sh-card);
}
.faq-accordion .accordion-button{
  background:#fff;
  color:var(--c-title);
  font-size:18px;
  font-weight:600;
  padding:20px 22px;
  box-shadow:none;
  gap:14px;
  border:0;
}
.faq-accordion .accordion-button:not(.collapsed){
  color:var(--c-primary);
  background:#fff;
  box-shadow:none;
}
.faq-accordion .accordion-button::after{
  content:"+";
  background-image:none !important;
  width:26px;height:26px;
  line-height:24px;
  text-align:center;
  font-size:20px;
  font-weight:400;
  color:var(--c-primary);
  background:var(--c-primary-light);
  border-radius:8px;
  flex:0 0 26px;
  margin-left:auto;
  transition:transform .22s ease,color .22s ease,background .22s ease;
}
.faq-accordion .accordion-button:not(.collapsed)::after{
  transform:rotate(45deg);
  color:#fff;
  background:var(--c-accent);
}
.faq-accordion .accordion-button:focus{box-shadow:none}
.faq-accordion .accordion-body{
  padding:0 22px 22px;
  font-size:15px;
  color:var(--c-text);
  line-height:1.85;
}

/* ---------- contact ---------- */
.contact-wrap{display:grid;grid-template-columns:4fr 8fr;gap:48px;align-items:start}
.contact-points{margin-top:22px;display:flex;flex-direction:column;gap:16px}
.contact-points li{display:flex;gap:12px;font-size:15px}
.contact-points i{color:var(--c-primary);font-size:16px;margin-top:5px;flex:0 0 16px}
.contact-lines{margin-top:26px;padding-top:22px;border-top:1px solid var(--c-line);display:flex;flex-direction:column;gap:10px;font-size:14.5px}
.contact-lines span{display:inline-flex;align-items:center;gap:9px;color:var(--c-text)}
.contact-lines i{color:var(--c-teal)}
.contact-form{
  background:#fff;
  border:1px solid var(--c-line);
  border-radius:var(--r-card);
  padding:32px;
  box-shadow:var(--sh-card);
}
.form-row{display:grid;grid-template-columns:1fr 1fr;gap:20px}
.form-field{margin-bottom:20px}
.form-label{display:block;font-size:14px;font-weight:600;color:var(--c-title);margin-bottom:8px}
.form-control,.form-select{
  width:100%;
  height:48px;
  border:1px solid var(--c-line);
  border-radius:var(--r-btn);
  background:#F7F9FC;
  font-size:15px;
  color:var(--c-title);
  padding:0 14px;
  transition:border-color .2s ease,box-shadow .2s ease,background .2s ease;
}
textarea.form-control{height:auto;min-height:120px;padding:12px 14px;line-height:1.7;resize:vertical}
.form-select{
  appearance:none;
  background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='14' height='14' viewBox='0 0 24 24' fill='none' stroke='%238A98AA' stroke-width='2.2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='6 9 12 15 18 9'/%3E%3C/svg%3E");
  background-repeat:no-repeat;
  background-position:right 14px center;
  padding-right:38px;
}
.form-control:focus,.form-select:focus{
  background:#fff;
  border-color:var(--c-primary);
  box-shadow:0 0 0 3px rgba(27,98,214,.14);
  outline:none;
}
.form-check{display:flex;align-items:flex-start;gap:10px;margin-bottom:22px}
.form-check input{
  width:18px;height:18px;
  margin-top:4px;
  accent-color:var(--c-primary);
  flex:0 0 18px;
}
.form-check label{font-size:13.5px;color:var(--c-muted);line-height:1.7}
.form-note{font-size:12.5px;color:var(--c-muted);margin-top:12px}
.form-alert{
  display:none;
  margin-bottom:20px;
  background:rgba(18,181,168,.1);
  color:#0A8378;
  border:1px solid rgba(18,181,168,.3);
  border-radius:var(--r-btn);
  padding:10px 14px;
  font-size:14px;
}
.form-alert.show{display:block}

/* ---------- footer ---------- */
.site-footer{background:var(--c-dark);color:rgba(255,255,255,.72);padding:72px 0 0;margin-top:0}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:32px;padding-bottom:48px}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:18px}
.footer-brand .brand-mark{background:rgba(255,255,255,.12);box-shadow:none}
.footer-brand .brand-text{color:#fff;font-size:17px;font-weight:700}
.footer-brand .brand-text em{color:#6FA4F5}
.footer-about{font-size:14px;line-height:1.85;color:rgba(255,255,255,.66);max-width:30em}
.footer-col h4{font-size:15px;font-weight:600;color:#fff;margin-bottom:18px}
.footer-links{display:flex;flex-direction:column;gap:11px}
.footer-links a{
  font-size:14px;
  color:rgba(255,255,255,.72);
  transition:color .2s ease,transform .2s ease;
  display:inline-block;
}
.footer-links a:hover{color:#fff;transform:translateX(2px)}
.footer-contact li{display:flex;gap:10px;font-size:14px;color:rgba(255,255,255,.72);margin-bottom:12px}
.footer-contact i{color:#6FA4F5;margin-top:5px;flex:0 0 14px;font-size:14px}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.12);
  padding:22px 0;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  flex-wrap:wrap;
  font-size:13px;
  color:rgba(255,255,255,.55);
}
.footer-bottom a{color:rgba(255,255,255,.72)}
.footer-bottom a:hover{color:#fff}

/* ---------- responsive ---------- */
@media (max-width:1199.98px){
  .search-box{width:170px}
  .header-left,.header-right{gap:20px}
  .nav-main{gap:4px}
}
@media (max-width:991.98px){
  .section{padding:72px 0}
  .header-tint{display:none}
  .nav-main,.header-right .nav-sep,.search-box{display:none}
  .mobile-toggle{display:inline-flex}
  .header-inner{height:60px}
  .hero{padding:44px 0 56px}
  .hero-inner{grid-template-columns:1fr;gap:32px}
  .hero-media img{max-height:320px;aspect-ratio:16/10}
  .hero-badge{left:12px;bottom:12px}
  .stats-bar{grid-template-columns:repeat(2,minmax(0,1fr));padding:28px}
  .stat-item + .stat-item{border-left:0;padding-left:0}
  .stat-item:nth-child(even){border-left:1px solid rgba(255,255,255,.14);padding-left:24px}
  .tier-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .tier-card{padding-bottom:28px !important}
  .plan-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .plan-card--featured{transform:none}
  .plan-card--featured:hover{transform:translateY(-4px)}
  .post-grid,.fb-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .faq-wrap,.contact-wrap{grid-template-columns:1fr;gap:32px}
  .flash-strip{flex-direction:column;align-items:flex-start;padding:28px}
  .flash-cta{width:100%;min-width:0}
  .flash-cta .btn-main{width:100%}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
}
@media (max-width:767.98px){
  .container{padding-left:16px;padding-right:16px}
  .section{padding:56px 0}
  .section-head{margin-bottom:26px}
  .grid2,.grid3,.grid4{grid-template-columns:1fr}
  .stats-bar{grid-template-columns:1fr;gap:18px}
  .stat-item:nth-child(even){border-left:0;padding-left:0}
  .tier-grid,.plan-grid,.post-grid,.fb-grid{grid-template-columns:1fr}
  .form-row{grid-template-columns:1fr}
  .contact-form{padding:24px}
  .hero-cta .btn-main,.hero-cta .btn-outline-main{width:100%}
  .hero-cta{flex-direction:column}
  .trust-row{gap:16px}
  .countdown{flex-wrap:wrap}
  .cd-cell{min-width:58px}
  .footer-grid{grid-template-columns:1fr}
  .footer-bottom{justify-content:flex-start}
  .faq-accordion .accordion-button{font-size:16px;padding:16px 18px}
}
@media (max-width:519.98px){
  .brand-text{font-size:15.5px}
  .hero-title{font-size:26px}
  .hero-media img{max-height:230px}
  .hero-badge{position:static;margin-top:14px}
  .plan-price .num{font-size:30px}
}

/* roulang page: article */
:root{
  --c-primary:#1B62D6;
  --c-primary-dark:#1450B0;
  --c-primary-soft:#E8F0FE;
  --c-primary-line:rgba(27,98,214,.14);
  --c-accent:#FF7A2F;
  --c-accent-soft:#FFF1E7;
  --c-teal:#12B5A8;
  --c-teal-soft:#E6F7F5;
  --c-bg:#F5F8FC;
  --c-card:#FFFFFF;
  --c-ink:#0E1F33;
  --c-text:#4A5B70;
  --c-muted:#8A98AA;
  --c-line:#E6EBF2;
  --c-dark:#0E2A4A;
  --r-card:16px;
  --r-btn:10px;
  --r-img:12px;
  --r-pill:999px;
  --sh-card:0 1px 2px rgba(14,42,74,.06),0 10px 24px -14px rgba(14,42,74,.14);
  --sh-hover:0 6px 16px rgba(14,42,74,.08),0 22px 40px -18px rgba(14,42,74,.22);
  --font-cn:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Noto Sans SC",system-ui,sans-serif;
  --font-num:"Inter",-apple-system,"PingFang SC",sans-serif;
  --bs-primary:#1B62D6;
  --bs-body-font-family:var(--font-cn);
  --bs-body-color:#4A5B70;
  --bs-border-color:#E6EBF2;
  --bs-link-color:#1B62D6;
  --bs-link-hover-color:#1450B0;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:var(--font-cn);
  font-size:16px;
  line-height:1.85;
  color:var(--c-text);
  background:var(--c-bg);
  overflow-x:hidden;
}
h1,h2,h3,h4,h5,p,ul,ol,figure{margin:0;}
ul,ol{padding-left:0;list-style:none;}
img{max-width:100%;height:auto;display:block;}
a{color:inherit;text-decoration:none;transition:color .2s ease;}
a:hover{color:var(--c-primary);}
a:focus-visible,button:focus-visible,input:focus-visible,select:focus-visible,textarea:focus-visible{
  outline:2px solid var(--c-primary);
  outline-offset:2px;
  border-radius:6px;
}
button{font-family:inherit;}
.container{
  width:100%;
  max-width:1200px;
  margin:0 auto;
  padding-left:24px;
  padding-right:24px;
}
h1{font-size:clamp(26px,3.4vw,38px);line-height:1.28;font-weight:700;color:var(--c-ink);}
h2{font-size:clamp(21px,2.3vw,30px);line-height:1.32;font-weight:700;color:var(--c-ink);}
h3{font-size:20px;line-height:1.45;font-weight:600;color:var(--c-ink);}
.section{padding:64px 0;}
.section-head{margin-bottom:32px;}
.section-head .eyebrow{
  display:inline-block;font-size:13px;font-weight:600;color:var(--c-primary);
  background:var(--c-primary-soft);border-radius:var(--r-pill);padding:4px 14px;margin-bottom:12px;
}
.section-head h2{position:relative;padding-left:18px;}
.section-head h2::before{
  content:"";position:absolute;left:0;top:.18em;width:4px;height:1.02em;
  border-radius:2px;background:var(--c-primary);
}
.section-head p{margin-top:10px;color:var(--c-text);max-width:52em;}

/* ============ 导航 ============ */
.site-header{
  position:sticky;top:0;z-index:1030;background:#fff;
  border-bottom:1px solid var(--c-line);
  transition:box-shadow .25s ease,background .25s ease;
}
.site-header.is-stuck{box-shadow:0 6px 20px -12px rgba(14,42,74,.28);}
.header-inner{
  display:flex;align-items:center;gap:28px;
  min-height:68px;
}
.brand{display:flex;align-items:center;gap:10px;flex:0 0 auto;}
.brand-mark{
  width:38px;height:38px;border-radius:11px;
  display:flex;align-items:center;justify-content:center;
  background:linear-gradient(135deg,var(--c-primary),#3E86EE);
  color:#fff;font-family:var(--font-num);font-weight:700;font-size:15px;letter-spacing:.02em;
  box-shadow:0 6px 14px -8px rgba(27,98,214,.8);
}
.brand-text{font-size:18px;font-weight:700;color:var(--c-ink);letter-spacing:0;}
.brand-text em{font-style:normal;color:var(--c-primary);}
.nav-main{display:flex;align-items:center;gap:28px;flex:1 1 auto;}
.nav-main a{
  font-size:16px;font-weight:500;color:var(--c-text);
  padding:6px 0;position:relative;white-space:nowrap;
}
.nav-main a::after{
  content:"";position:absolute;left:0;right:0;bottom:-2px;height:2px;border-radius:2px;
  background:var(--c-primary);transform:scaleX(0);transform-origin:left;transition:transform .2s ease;
}
.nav-main a:hover{color:var(--c-primary);}
.nav-main a:hover::after{transform:scaleX(1);}
.nav-main a.active{color:var(--c-primary);font-weight:600;}
.nav-main a.active::after{transform:scaleX(1);}
.header-side{display:flex;align-items:center;gap:12px;flex:0 0 auto;}
.header-search{
  display:flex;align-items:center;gap:8px;
  background:#F1F5FA;border:1px solid transparent;border-radius:var(--r-btn);
  padding:0 12px;height:42px;min-width:200px;transition:border-color .2s ease,background .2s ease;
}
.header-search:focus-within{background:#fff;border-color:var(--c-primary);box-shadow:0 0 0 3px rgba(27,98,214,.12);}
.header-search i{color:var(--c-muted);font-size:14px;}
.header-search input{
  border:0;background:transparent;outline:none;font-size:14px;color:var(--c-ink);width:100%;
}
.header-search input::placeholder{color:var(--c-muted);}
.nav-toggle{
  display:none;width:42px;height:42px;border:1px solid var(--c-line);background:#fff;
  border-radius:var(--r-btn);color:var(--c-ink);font-size:17px;
}
.mobile-nav{display:none;border-top:1px solid var(--c-line);background:#fff;}
.mobile-nav .container{display:flex;flex-direction:column;padding-top:8px;padding-bottom:14px;}
.mobile-nav a{
  padding:12px 2px;font-size:16px;font-weight:500;color:var(--c-text);border-bottom:1px dashed var(--c-line);
}
.mobile-nav a.active{color:var(--c-primary);font-weight:600;}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  border-radius:var(--r-btn);font-size:15px;font-weight:600;line-height:1;
  padding:13px 26px;border:1.5px solid transparent;
  transition:all .2s ease;cursor:pointer;text-align:center;
}
.btn-primary{background:var(--c-primary);color:#fff;border-color:var(--c-primary);}
.btn-primary:hover{background:var(--c-primary-dark);border-color:var(--c-primary-dark);color:#fff;transform:translateY(-1px);box-shadow:0 12px 24px -14px rgba(27,98,214,.9);}
.btn-outline{background:#fff;color:var(--c-primary);border-color:rgba(27,98,214,.45);}
.btn-outline:hover{background:var(--c-primary-soft);color:var(--c-primary-dark);border-color:var(--c-primary);}
.btn-ghost{background:rgba(255,255,255,.08);color:#fff;border-color:rgba(255,255,255,.4);}
.btn-ghost:hover{background:#fff;color:var(--c-dark);}
.btn-cta{padding:12px 22px;background:var(--c-accent);border-color:var(--c-accent);color:#fff;}
.btn-cta:hover{background:#F2661A;border-color:#F2661A;color:#fff;transform:translateY(-1px);}
.btn-sm{padding:10px 18px;font-size:14px;}

/* ============ 文章页顶部 ============ */
.article-hero{
  background:#fff;
  border-bottom:1px solid var(--c-line);
  padding:28px 0 34px;
}
.breadcrumb-bar{
  display:flex;align-items:center;flex-wrap:nowrap;gap:8px;
  font-size:13px;color:var(--c-muted);margin-bottom:22px;
  white-space:nowrap;overflow:hidden;text-overflow:ellipsis;
}
.breadcrumb-bar a{color:var(--c-muted);}
.breadcrumb-bar a:hover{color:var(--c-primary);text-decoration:underline;text-underline-offset:4px;}
.breadcrumb-bar .sep{color:#C6D0DC;}
.breadcrumb-bar .current{color:var(--c-text);overflow:hidden;text-overflow:ellipsis;max-width:46vw;}
.article-head{max-width:860px;}
.article-head h1{margin-bottom:18px;}
.meta-row{
  display:flex;flex-wrap:wrap;align-items:center;gap:16px;
  font-size:14px;color:var(--c-muted);
}
.meta-row .meta-item{display:inline-flex;align-items:center;gap:7px;}
.meta-row i{font-size:14px;color:var(--c-muted);}
.badge-cat{
  display:inline-flex;align-items:center;gap:6px;
  font-size:12px;font-weight:600;padding:5px 13px;border-radius:var(--r-pill);
  background:var(--c-teal-soft);color:#0B7A70;
}
.badge-cat.blue{background:var(--c-primary-soft);color:var(--c-primary-dark);}

/* ============ 文章主体 ============ */
.article-main{padding:44px 0 24px;}
.article-wrap{max-width:860px;margin:0 auto;}
.article-figure{
  width:100%;max-width:860px;margin:0 auto 34px;
  border-radius:var(--r-img);overflow:hidden;
  box-shadow:var(--sh-card);
  background:#DCE7F5;
}
.article-figure img{width:100%;aspect-ratio:16/9;object-fit:cover;}
.article-body{
  background:#fff;border:1px solid var(--c-line);border-radius:var(--r-card);
  box-shadow:var(--sh-card);
  padding:40px 44px 44px;
  max-width:100%;
}
.article-body p{margin:0 0 1.1em;line-height:1.9;color:var(--c-text);}
.article-body h2{
  font-size:clamp(20px,2vw,25px);margin:38px 0 14px;padding-left:16px;position:relative;
}
.article-body h2::before{
  content:"";position:absolute;left:0;top:.2em;width:4px;height:1em;border-radius:2px;background:var(--c-primary);
}
.article-body h3{font-size:19px;margin:26px 0 10px;color:var(--c-ink);}
.article-body ul,.article-body ol{margin:0 0 1.1em;padding-left:1.4em;}
.article-body ul{list-style:disc;}
.article-body ol{list-style:decimal;}
.article-body li{margin-bottom:8px;line-height:1.85;}
.article-body ul li::marker{color:var(--c-primary);}
.article-body ol li::marker{color:var(--c-primary);font-weight:600;}
.article-body blockquote{
  margin:22px 0;padding:16px 20px;background:var(--c-primary-soft);
  border-left:4px solid var(--c-primary);border-radius:0 10px 10px 0;color:#26415F;
}
.article-body blockquote p:last-child{margin-bottom:0;}
.article-body img{border-radius:var(--r-img);margin:22px auto;}
.article-body figure{margin:22px 0;}
.article-body figcaption{font-size:13px;color:var(--c-muted);text-align:center;margin-top:10px;}
.article-body a{color:var(--c-primary);text-decoration:underline;text-underline-offset:4px;}
.article-body a:hover{color:var(--c-primary-dark);}
.article-body table{
  width:100%;border-collapse:collapse;margin:22px 0;font-size:15px;
  display:block;overflow-x:auto;white-space:nowrap;
}
.article-body th,.article-body td{border:1px solid var(--c-line);padding:11px 14px;text-align:left;}
.article-body th{background:#F2F7FE;color:var(--c-ink);font-weight:600;}
.article-body strong{color:var(--c-ink);}
.article-body hr{border:0;border-top:1px solid var(--c-line);margin:30px 0;}

.empty-state{text-align:center;padding:26px 10px 8px;}
.empty-state i{font-size:40px;color:#B9C7D8;margin-bottom:16px;display:block;}
.empty-state h2{font-size:22px;margin-bottom:10px;padding-left:0;}
.empty-state h2::before{display:none;}
.empty-state p{color:var(--c-muted);margin-bottom:22px;}

/* 标签与分享 */
.article-foot{margin-top:30px;display:flex;flex-wrap:wrap;gap:22px;align-items:center;justify-content:space-between;}
.tag-list{display:flex;flex-wrap:wrap;gap:10px;}
.tag{
  display:inline-block;font-size:13px;padding:7px 15px;border-radius:var(--r-pill);
  background:#F1F5FA;color:var(--c-text);border:1px solid transparent;transition:all .2s ease;
}
.tag:hover{background:var(--c-primary);color:#fff;border-color:var(--c-primary);}
.share-row{display:flex;align-items:center;gap:12px;font-size:13px;color:var(--c-muted);}
.share-row a{
  width:36px;height:36px;border-radius:50%;border:1px solid var(--c-line);background:#fff;
  display:inline-flex;align-items:center;justify-content:center;color:var(--c-text);font-size:15px;
  transition:all .2s ease;
}
.share-row a:hover{background:var(--c-primary);border-color:var(--c-primary);color:#fff;transform:translateY(-2px);}

/* 返回 / 上下篇 */
.nav-split{
  margin-top:26px;display:grid;grid-template-columns:1fr 1fr;gap:16px;
}
.nav-split .back-single{grid-column:1 / -1;display:flex;justify-content:center;}
.pager-card{
  background:#fff;border:1px solid var(--c-line);border-radius:var(--r-card);
  padding:16px 20px;box-shadow:var(--sh-card);transition:all .2s ease;display:block;
}
.pager-card:hover{transform:translateY(-3px);box-shadow:var(--sh-hover);border-color:var(--c-primary-line);}
.pager-card span{display:block;font-size:12px;color:var(--c-muted);margin-bottom:6px;}
.pager-card strong{font-size:15px;color:var(--c-ink);font-weight:600;}
.pager-card:hover strong{color:var(--c-primary);}

/* 相关内容 */
.related-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;}
.card-post{
  background:#fff;border:1px solid var(--c-line);border-radius:var(--r-card);
  overflow:hidden;box-shadow:var(--sh-card);transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
  display:flex;flex-direction:column;height:100%;
}
.card-post:hover{transform:translateY(-4px);box-shadow:var(--sh-hover);border-color:var(--c-primary-line);}
.card-cover{position:relative;overflow:hidden;background:#DCE7F5;}
.card-cover img{width:100%;aspect-ratio:16/9;object-fit:cover;transition:transform .4s ease;}
.card-post:hover .card-cover img{transform:scale(1.03);}
.card-body{padding:20px 22px 22px;display:flex;flex-direction:column;gap:12px;flex:1;}
.card-body h3{font-size:17px;line-height:1.5;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.card-post:hover .card-body h3{color:var(--c-primary);}
.card-meta{display:flex;align-items:center;gap:8px;font-size:13px;color:var(--c-muted);margin-top:auto;}
.card-meta i{font-size:13px;}

/* CTA 条 */
.cta-strip{
  background:linear-gradient(100deg,#0E2A4A 0%,#143B66 100%);
  border-radius:20px;padding:34px 40px;color:#fff;
  display:flex;align-items:center;justify-content:space-between;gap:28px;flex-wrap:wrap;
  box-shadow:0 24px 48px -30px rgba(14,42,74,.8);
}
.cta-strip h2{color:#fff;font-size:clamp(20px,2.1vw,26px);margin-bottom:8px;}
.cta-strip h2::before{display:none;}
.cta-strip p{color:rgba(255,255,255,.72);font-size:15px;max-width:44em;}
.cta-actions{display:flex;gap:12px;flex-wrap:wrap;}

/* ============ 页脚 ============ */
.site-footer{background:var(--c-dark);color:rgba(255,255,255,.72);padding:64px 0 0;margin-top:72px;}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:32px;}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:16px;}
.footer-brand .brand-mark{background:linear-gradient(135deg,#2E7BEE,#1B62D6);}
.footer-brand .brand-text{color:#fff;font-size:18px;font-weight:700;}
.footer-brand .brand-text em{font-style:normal;color:#7FB2FF;}
.footer-about{font-size:14px;line-height:1.85;color:rgba(255,255,255,.66);max-width:34em;}
.footer-col h4{font-size:15px;font-weight:600;color:#fff;margin-bottom:16px;}
.footer-links{display:flex;flex-direction:column;gap:10px;}
.footer-links a{font-size:14px;color:rgba(255,255,255,.72);transition:color .2s ease,transform .2s ease;}
.footer-links a:hover{color:#fff;transform:translateX(2px);}
.footer-contact{display:flex;flex-direction:column;gap:12px;}
.footer-contact li{display:flex;gap:10px;font-size:14px;color:rgba(255,255,255,.72);line-height:1.7;}
.footer-contact i{margin-top:4px;color:#7FB2FF;}
.footer-bottom{
  margin-top:48px;border-top:1px solid rgba(255,255,255,.12);
  padding:20px 0 26px;display:flex;flex-wrap:wrap;gap:12px;
  justify-content:space-between;font-size:13px;color:rgba(255,255,255,.55);
}

/* ============ 响应式 ============ */
@media (max-width:1199px){
  .footer-grid{grid-template-columns:1.4fr 1fr 1fr;}
  .footer-grid > div:last-child{grid-column:1 / -1;}
}
@media (max-width:991px){
  .nav-main{display:none;}
  .header-search{min-width:150px;}
  .nav-toggle{display:inline-flex;align-items:center;justify-content:center;}
  .mobile-nav{display:block;}
  .related-grid{grid-template-columns:repeat(2,1fr);}
  .article-body{padding:32px 28px 36px;}
  .cta-strip{padding:28px 26px;}
}
@media (max-width:767px){
  .container{padding-left:16px;padding-right:16px;}
  .section{padding:52px 0;}
  .header-search{display:none;}
  .header-inner{min-height:60px;gap:14px;}
  .article-hero{padding:20px 0 26px;}
  .meta-row{gap:12px;font-size:13px;}
  .breadcrumb-bar .current{max-width:40vw;}
  .article-body{padding:24px 18px 28px;border-radius:14px;}
  .article-body h2{margin-top:30px;}
  .nav-split{grid-template-columns:1fr;}
  .related-grid{grid-template-columns:1fr;}
  .article-foot{flex-direction:column;align-items:flex-start;}
  .cta-strip{flex-direction:column;align-items:flex-start;}
  .cta-actions{width:100%;}
  .cta-actions .btn{flex:1 1 auto;}
  .footer-grid{grid-template-columns:1fr;gap:28px;}
  .site-footer{padding-top:48px;margin-top:56px;}
  .footer-bottom{flex-direction:column;gap:8px;}
}
@media (max-width:520px){
  .brand-text{font-size:16px;}
  .brand-mark{width:34px;height:34px;font-size:13px;border-radius:10px;}
  h1{font-size:24px;}
  .btn{padding:12px 20px;font-size:14px;}
}

/* roulang page: category1 */
:root{
  --c-primary:#1B62D6;
  --c-primary-hover:#1450B0;
  --c-primary-soft:#E8F0FE;
  --c-accent:#FF7A2F;
  --c-accent-soft:#FFF1E7;
  --c-teal:#12B5A8;
  --c-teal-soft:#E4F7F5;
  --c-danger:#E5484D;
  --c-bg:#F5F8FC;
  --c-card:#FFFFFF;
  --c-dark:#0E2A4A;
  --c-title:#0E1F33;
  --c-text:#4A5B70;
  --c-muted:#8A98AA;
  --c-line:#E6EBF2;
  --r-card:16px;
  --r-btn:10px;
  --r-img:12px;
  --r-hero:20px;
  --sh-card:0 1px 2px rgba(14,42,74,.06), 0 10px 24px -14px rgba(14,42,74,.14);
  --sh-card-hover:0 6px 16px rgba(14,42,74,.08), 0 22px 40px -18px rgba(14,42,74,.22);
  --font-sans:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Noto Sans SC",system-ui,sans-serif;
  --font-num:"Inter",-apple-system,"PingFang SC","Microsoft YaHei",sans-serif;
  --bs-body-font-family:var(--font-sans);
  --bs-body-color:#4A5B70;
  --bs-body-bg:#F5F8FC;
  --bs-primary:#1B62D6;
  --bs-primary-rgb:27,98,214;
  --bs-border-color:#E6EBF2;
  --bs-link-color:#1B62D6;
  --bs-link-hover-color:#1450B0;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;}
body{
  margin:0;
  background:var(--c-bg);
  color:var(--c-text);
  font-family:var(--font-sans);
  font-size:16px;
  line-height:1.85;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{max-width:100%;height:auto;display:block;}
a{color:var(--c-primary);text-decoration:none;transition:color .2s ease;}
a:hover{color:var(--c-primary-hover);}
button,input,select,textarea{font-family:inherit;font-size:inherit;}
h1,h2,h3,h4,h5{color:var(--c-title);margin:0;font-weight:700;}
p{margin:0;}
ul{margin:0;padding:0;list-style:none;}
:focus-visible{outline:2px solid var(--c-primary);outline-offset:2px;}
.container,.container-lg,.container-md,.container-sm,.container-xl{
  max-width:1200px;
  padding-left:24px;
  padding-right:24px;
}

/* ---------- 顶部导航 ---------- */
.site-header{
  position:sticky;
  top:0;
  z-index:1040;
  background:#fff;
  border-bottom:1px solid var(--c-line);
  transition:box-shadow .25s ease;
}
.site-header.is-scrolled{box-shadow:0 8px 24px -18px rgba(14,42,74,.35);}
.header-inner{
  display:flex;
  align-items:center;
  gap:22px;
  height:68px;
  transition:height .25s ease;
}
.site-header.is-scrolled .header-inner{height:60px;}
.brand{display:flex;align-items:center;gap:10px;flex:0 0 auto;}
.brand-mark{
  width:36px;height:36px;border-radius:11px;
  background:linear-gradient(135deg,#2A74E8,#1450B0);
  color:#fff;font-family:var(--font-num);font-weight:700;font-size:15px;
  display:flex;align-items:center;justify-content:center;letter-spacing:.02em;
  box-shadow:0 6px 14px -8px rgba(27,98,214,.9);
}
.brand-text{font-size:19px;font-weight:700;color:var(--c-title);letter-spacing:0;white-space:nowrap;}
.brand-text em{font-style:normal;color:var(--c-primary);font-family:var(--font-num);}
.nav-main{display:flex;align-items:center;gap:28px;margin-left:6px;}
.nav-main a{
  position:relative;
  padding:6px 0;
  font-size:16px;
  font-weight:500;
  color:var(--c-title);
  white-space:nowrap;
}
.nav-main a::after{
  content:"";
  position:absolute;left:0;right:0;bottom:-2px;height:2px;border-radius:2px;
  background:var(--c-primary);transform:scaleX(0);transform-origin:left;
  transition:transform .2s ease;
}
.nav-main a:hover{color:var(--c-primary);}
.nav-main a:hover::after,.nav-main a.active::after{transform:scaleX(1);}
.nav-main a.active{color:var(--c-primary);}
.header-side{
  margin-left:auto;
  display:flex;align-items:center;gap:12px;
  height:100%;
  padding-left:20px;
  border-left:1px solid var(--c-line);
}
.nav-search{
  display:flex;align-items:center;gap:8px;
  background:#EEF3FA;
  border:1px solid transparent;
  border-radius:var(--r-btn);
  padding:0 12px;
  height:40px;
  width:200px;
  transition:background .2s ease,border-color .2s ease;
}
.nav-search:focus-within{background:#fff;border-color:var(--c-primary);}
.nav-search i{color:var(--c-muted);font-size:14px;}
.nav-search input{
  border:0;background:transparent;outline:none;
  width:100%;font-size:14px;color:var(--c-title);
}
.nav-search input::placeholder{color:var(--c-muted);}
.btn-cta{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  background:var(--c-accent);color:#fff;
  border:1.5px solid var(--c-accent);
  border-radius:var(--r-btn);
  padding:9px 20px;
  font-size:15px;font-weight:600;
  white-space:nowrap;
  transition:transform .2s ease,box-shadow .2s ease,background .2s ease;
}
.btn-cta:hover{background:#F0661A;border-color:#F0661A;color:#fff;transform:translateY(-1px);box-shadow:0 12px 22px -14px rgba(255,122,47,.95);}
.nav-toggle{
  display:none;
  margin-left:auto;
  width:42px;height:42px;
  border:1px solid var(--c-line);
  border-radius:var(--r-btn);
  background:#fff;
  padding:0;
  cursor:pointer;
}
.nav-toggle span{
  display:block;width:18px;height:2px;margin:3px auto;border-radius:2px;
  background:var(--c-title);transition:transform .2s ease,opacity .2s ease;
}
.nav-toggle.is-open span:nth-child(1){transform:translateY(5px) rotate(45deg);}
.nav-toggle.is-open span:nth-child(2){opacity:0;}
.nav-toggle.is-open span:nth-child(3){transform:translateY(-5px) rotate(-45deg);}
.mobile-panel{
  display:none;
  border-top:1px solid var(--c-line);
  background:#fff;
  padding:16px 24px 22px;
  box-shadow:0 18px 30px -22px rgba(14,42,74,.5);
}
.mobile-panel.open{display:block;}
.mobile-panel a{
  display:block;
  padding:12px 2px;
  font-size:16px;
  font-weight:500;
  color:var(--c-title);
  border-bottom:1px dashed var(--c-line);
}
.mobile-panel a.active{color:var(--c-primary);}
.mobile-panel .nav-search{width:100%;margin:16px 0 14px;}
.mobile-panel .btn-cta{width:100%;}

/* ---------- 通用板块 ---------- */
.section{padding:96px 0;}
.section-alt{background:#fff;}
.section-head{
  display:flex;
  align-items:flex-end;
  justify-content:space-between;
  gap:24px;
  margin-bottom:32px;
}
.section-title{
  position:relative;
  padding-left:18px;
  font-size:clamp(22px,2.4vw,32px);
  line-height:1.3;
  font-weight:700;
}
.section-title::before{
  content:"";
  position:absolute;left:0;top:50%;transform:translateY(-50%);
  width:4px;height:18px;border-radius:2px;background:var(--c-primary);
}
.section-sub{margin-top:10px;font-size:15px;color:var(--c-muted);}
.link-more{font-size:15px;font-weight:600;white-space:nowrap;}
.link-more i{font-size:12px;margin-left:4px;transition:transform .2s ease;}
.link-more:hover i{transform:translateX(3px);}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;font-weight:600;
  color:var(--c-primary);
  background:var(--c-primary-soft);
  border-radius:999px;
  padding:6px 14px;
}
.eyebrow i{font-size:12px;}

/* ---------- 分类横幅 ---------- */
.page-banner{
  background:
    radial-gradient(120% 140% at 100% 0,rgba(27,98,214,.10) 0%,rgba(27,98,214,0) 60%),
    linear-gradient(180deg,#F2F7FF 0%,#F7FAFF 100%);
  border-bottom:1px solid var(--c-line);
  padding:42px 0 46px;
}
.banner-grid{
  display:grid;
  grid-template-columns:minmax(0,7fr) minmax(0,5fr);
  gap:40px;
  align-items:center;
}
.banner-copy h1{
  margin:18px 0 16px;
  font-size:clamp(26px,3.2vw,40px);
  line-height:1.24;
  max-width:20em;
}
.banner-copy p{font-size:16px;color:var(--c-text);max-width:36em;}
.banner-visual img{
  width:100%;
  aspect-ratio:16/10;
  object-fit:cover;
  border-radius:var(--r-hero);
  box-shadow:0 20px 40px -26px rgba(14,42,74,.6);
}
.banner-meta{
  display:flex;flex-wrap:wrap;gap:14px 22px;
  margin-top:22px;
  font-size:14px;color:var(--c-muted);
}
.banner-meta span{display:inline-flex;align-items:center;gap:7px;}
.banner-meta i{color:var(--c-teal);font-size:13px;}

/* ---------- 收录要点 ---------- */
.fact-grid{
  display:grid;
  grid-template-columns:repeat(4,minmax(0,1fr));
  gap:24px;
}
.fact-card{
  background:var(--c-card);
  border:1px solid var(--c-line);
  border-radius:var(--r-card);
  padding:26px 24px;
  box-shadow:var(--sh-card);
  transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.fact-card:hover{transform:translateY(-4px);box-shadow:var(--sh-card-hover);border-color:rgba(27,98,214,.28);}
.fact-icon{
  width:44px;height:44px;border-radius:12px;
  display:flex;align-items:center;justify-content:center;
  background:var(--c-primary-soft);color:var(--c-primary);font-size:18px;
}
.fact-card:nth-child(2) .fact-icon{background:var(--c-teal-soft);color:var(--c-teal);}
.fact-card:nth-child(3) .fact-icon{background:var(--c-accent-soft);color:var(--c-accent);}
.fact-card:nth-child(4) .fact-icon{background:#EEF1F7;color:#4A5B70;}
.fact-value{
  margin-top:18px;
  font-family:var(--font-num);
  font-size:28px;font-weight:700;color:var(--c-title);
  font-variant-numeric:tabular-nums;
  line-height:1.2;
}
.fact-value small{font-size:14px;font-weight:600;color:var(--c-muted);margin-left:6px;font-family:var(--font-sans);}
.fact-card h3{margin-top:12px;font-size:17px;font-weight:600;}
.fact-card p{margin-top:8px;font-size:14px;color:var(--c-text);line-height:1.8;}

/* ---------- 左窄右宽内容区 ---------- */
.split-grid{
  display:grid;
  grid-template-columns:296px minmax(0,1fr);
  gap:32px;
  align-items:start;
}
.side-col{position:sticky;top:88px;display:grid;gap:20px;}
.side-card{
  background:#fff;
  border:1px solid var(--c-line);
  border-radius:var(--r-card);
  padding:22px;
  box-shadow:var(--sh-card);
}
.side-card h3{
  font-size:16px;font-weight:700;
  padding-bottom:14px;margin-bottom:12px;
  border-bottom:1px solid var(--c-line);
}
.side-nav li + li{margin-top:6px;}
.side-nav a{
  display:flex;align-items:center;justify-content:space-between;
  gap:10px;
  padding:11px 14px;
  border-radius:var(--r-btn);
  font-size:15px;font-weight:500;
  color:var(--c-text);
  background:#F7F9FD;
  transition:background .2s ease,color .2s ease;
}
.side-nav a i{font-size:12px;opacity:.6;}
.side-nav a:hover{background:var(--c-primary-soft);color:var(--c-primary);}
.side-nav a.active{background:var(--c-primary);color:#fff;}
.side-nav a.active i{opacity:.85;}
.side-contact .contact-list li{
  display:flex;gap:10px;align-items:flex-start;
  font-size:14px;color:var(--c-text);
  padding:8px 0;
}
.side-contact .contact-list i{color:var(--c-primary);margin-top:6px;font-size:13px;}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  border-radius:var(--r-btn);
  font-size:15px;font-weight:600;
  padding:11px 24px;
  border:1.5px solid transparent;
  transition:transform .2s ease,box-shadow .2s ease,background .2s ease,color .2s ease,border-color .2s ease;
}
.btn-primary{
  background:var(--c-primary);border-color:var(--c-primary);color:#fff;
}
.btn-primary:hover{background:var(--c-primary-hover);border-color:var(--c-primary-hover);color:#fff;transform:translateY(-1px);box-shadow:0 14px 24px -16px rgba(27,98,214,1);}
.btn-outline{
  background:#fff;border-color:rgba(27,98,214,.45);color:var(--c-primary);
}
.btn-outline:hover{background:var(--c-primary-soft);border-color:var(--c-primary);color:var(--c-primary-hover);transform:translateY(-1px);}
.btn-ghost{
  background:transparent;border-color:rgba(255,255,255,.6);color:#fff;
}
.btn-ghost:hover{background:#fff;color:var(--c-dark);border-color:#fff;transform:translateY(-1px);}
.w-100{width:100%;}

.news-list{display:grid;gap:20px;}
.news-row{
  display:grid;
  grid-template-columns:300px minmax(0,1fr);
  gap:24px;
  align-items:center;
  background:#fff;
  border:1px solid var(--c-line);
  border-radius:var(--r-card);
  padding:18px;
  box-shadow:var(--sh-card);
  transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.news-row:hover{transform:translateY(-4px);box-shadow:var(--sh-card-hover);border-color:rgba(27,98,214,.28);}
.news-thumb img{
  width:100%;
  aspect-ratio:16/9;
  object-fit:cover;
  border-radius:var(--r-img);
  transition:transform .3s ease;
}
.news-row:hover .news-thumb img{transform:scale(1.03);}
.news-thumb{overflow:hidden;border-radius:var(--r-img);}
.news-body h3{
  margin:10px 0 10px;
  font-size:19px;
  font-weight:600;
  line-height:1.45;
  transition:color .2s ease;
}
.news-row:hover .news-body h3{color:var(--c-primary);}
.news-body p{font-size:15px;color:var(--c-text);}
.news-meta{
  display:flex;flex-wrap:wrap;align-items:center;gap:10px;
  margin-top:14px;
  font-size:13px;color:var(--c-muted);
}
.news-meta i{font-size:12px;}
.news-meta .dot{width:4px;height:4px;border-radius:50%;background:#C9D3E0;}
.tag{
  display:inline-flex;align-items:center;
  font-size:12px;font-weight:500;
  padding:4px 12px;
  border-radius:999px;
}
.tag-teal{background:var(--c-teal-soft);color:#0B8479;}
.tag-blue{background:var(--c-primary-soft);color:var(--c-primary-hover);}
.tag-orange{background:var(--c-accent-soft);color:#C4520F;}
.tag-grey{background:#EEF1F7;color:#5A6B80;}

/* ---------- 整理节奏时间线 ---------- */
.timeline{
  display:grid;
  grid-template-columns:repeat(4,minmax(0,1fr));
  gap:24px;
}
.tl-item{
  position:relative;
  background:#fff;
  border:1px solid var(--c-line);
  border-radius:var(--r-card);
  padding:26px 22px 24px;
  box-shadow:var(--sh-card);
  transition:transform .2s ease,box-shadow .2s ease;
}
.tl-item:hover{transform:translateY(-4px);box-shadow:var(--sh-card-hover);}
.tl-item::before{
  content:"";
  position:absolute;left:22px;top:0;
  width:52px;height:4px;border-radius:0 0 4px 4px;
  background:linear-gradient(90deg,var(--c-primary),var(--c-teal));
}
.tl-time{
  font-family:var(--font-num);
  font-size:24px;font-weight:700;color:var(--c-primary);
  font-variant-numeric:tabular-nums;
}
.tl-item h3{margin-top:10px;font-size:17px;font-weight:600;}
.tl-item p{margin-top:8px;font-size:14px;color:var(--c-text);}

/* ---------- FAQ ---------- */
.faq-wrap{
  display:grid;
  grid-template-columns:minmax(0,4fr) minmax(0,8fr);
  gap:48px;
  align-items:start;
}
.faq-intro p{margin-top:18px;font-size:15px;color:var(--c-text);}
.faq-intro .fact-line{
  margin-top:24px;padding:16px 18px;
  background:#fff;border:1px solid var(--c-line);border-radius:var(--r-card);
  font-size:14px;color:var(--c-text);
  display:flex;gap:12px;align-items:flex-start;
  box-shadow:var(--sh-card);
}
.faq-intro .fact-line i{color:var(--c-teal);margin-top:5px;}
.faq-accordion .accordion-item{
  border:1px solid var(--c-line);
  border-radius:var(--r-card);
  background:#fff;
  margin-bottom:14px;
  overflow:hidden;
  box-shadow:var(--sh-card);
}
.faq-accordion .accordion-button{
  display:flex;align-items:center;justify-content:space-between;gap:18px;
  width:100%;
  padding:20px 24px;
  background:#fff;
  border:0;
  font-size:18px;font-weight:600;color:var(--c-title);
  text-align:left;
  box-shadow:none;
  transition:color .2s ease,background .2s ease;
}
.faq-accordion .accordion-button:not(.collapsed){color:var(--c-primary);background:#FBFCFE;}
.faq-accordion .accordion-button:focus{box-shadow:none;outline:none;}
.faq-accordion .accordion-button::after{display:none;}
.faq-icon{
  position:relative;flex:0 0 auto;
  width:22px;height:22px;border-radius:50%;
  border:1.5px solid rgba(27,98,214,.4);
  transition:transform .22s ease,border-color .22s ease,background .22s ease;
}
.faq-icon::before,.faq-icon::after{
  content:"";position:absolute;left:50%;top:50%;
  background:var(--c-primary);border-radius:1px;
  transform:translate(-50%,-50%);
}
.faq-icon::before{width:10px;height:1.6px;}
.faq-icon::after{width:1.6px;height:10px;}
.faq-accordion .accordion-button[aria-expanded="true"] .faq-icon{transform:rotate(45deg);background:var(--c-primary-soft);border-color:var(--c-primary);}
.faq-accordion .accordion-body{
  padding:0 24px 22px;
  font-size:15px;
  color:var(--c-text);
  line-height:1.85;
}
.faq-accordion .accordion-collapse{transition:height .22s ease-out;}

/* ---------- 底部 CTA ---------- */
.cta-band{
  background:linear-gradient(120deg,#0E2A4A 0%,#123A66 62%,#1450B0 100%);
  border-radius:var(--r-hero);
  padding:38px 42px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:28px;
  color:#fff;
}
.cta-band h2{color:#fff;font-size:clamp(20px,2.2vw,28px);line-height:1.35;}
.cta-band p{margin-top:10px;font-size:15px;color:rgba(255,255,255,.76);max-width:46em;}
.cta-actions{display:flex;gap:12px;flex-wrap:wrap;}

/* ---------- 页脚 ---------- */
.site-footer{
  background:var(--c-dark);
  color:rgba(255,255,255,.72);
  padding:72px 0 0;
  margin-top:96px;
}
.footer-grid{
  display:grid;
  grid-template-columns:1.6fr 1fr 1fr 1.2fr;
  gap:32px;
  padding-bottom:44px;
}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:16px;}
.footer-brand .brand-mark{
  background:linear-gradient(135deg,#3E8BF5,#1B62D6);
  box-shadow:none;
}
.footer-brand .brand-text{color:#fff;font-size:18px;}
.footer-brand .brand-text em{color:#7FB6FF;}
.footer-about{font-size:14px;line-height:1.9;color:rgba(255,255,255,.66);max-width:34em;}
.footer-col h4{
  color:#fff;font-size:15px;font-weight:600;margin-bottom:18px;
}
.footer-links{display:grid;gap:11px;}
.footer-links a{
  font-size:14px;
  color:rgba(255,255,255,.72);
  transition:color .2s ease,transform .2s ease;
  display:inline-block;
}
.footer-links a:hover{color:#fff;transform:translateX(2px);}
.footer-contact{display:grid;gap:12px;}
.footer-contact li{display:flex;gap:10px;align-items:flex-start;font-size:14px;color:rgba(255,255,255,.72);}
.footer-contact i{margin-top:6px;font-size:13px;color:#7FB6FF;}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.12);
  padding:20px 0 26px;
  display:flex;flex-wrap:wrap;gap:10px 24px;
  justify-content:space-between;
  font-size:13px;
  color:rgba(255,255,255,.55);
}

/* ---------- 响应式 ---------- */
@media (max-width:1199.98px){
  .banner-grid{gap:32px;}
}
@media (max-width:1099.98px){
  .nav-main,.header-side{display:none;}
  .nav-toggle{display:block;}
}
@media (max-width:991.98px){
  .section{padding:72px 0;}
  .banner-grid{grid-template-columns:1fr;gap:28px;}
  .banner-visual{order:2;}
  .banner-visual img{aspect-ratio:16/9;}
  .fact-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
  .split-grid{grid-template-columns:1fr;gap:28px;}
  .side-col{position:static;grid-template-columns:repeat(2,minmax(0,1fr));}
  .timeline{grid-template-columns:repeat(2,minmax(0,1fr));}
  .faq-wrap{grid-template-columns:1fr;gap:32px;}
  .cta-band{flex-direction:column;align-items:flex-start;padding:32px 28px;}
  .footer-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
}
@media (max-width:767.98px){
  .news-row{grid-template-columns:1fr;gap:16px;}
  .news-thumb img{aspect-ratio:16/9;}
  .section-head{flex-direction:column;align-items:flex-start;gap:14px;}
  .cta-actions{width:100%;}
  .cta-actions .btn{width:100%;}
}
@media (max-width:575.98px){
  .container,.container-lg,.container-md,.container-sm,.container-xl{padding-left:16px;padding-right:16px;}
  .section{padding:56px 0;}
  .section-main? {}
  .wrapper{padding:0;}
  .header-inner{height:60px;gap:12px;}
  .brand-text{font-size:17px;}
  .brand-mark{width:32px;height:32px;font-size:13px;}
  .banner-copy h1{font-size:26px;}
  .fact-grid{grid-template-columns:1fr;}
  .side-col{grid-template-columns:1fr;}
  .timeline{grid-template-columns:1fr;}
  .footer-grid{grid-template-columns:1fr;gap:28px;}
  .site-footer{margin-top:56px;padding-top:56px;}
  .mobile-panel{padding:14px 16px 20px;}
  .news-row{padding:14px;}
  .faq-accordion .accordion-button{font-size:16px;padding:18px;}
  .faq-accordion .accordion-body{padding:0 18px 18px;}
}

/* roulang page: category2 */
:root{
  --c-primary:#1B62D6;
  --c-primary-d:#1450B0;
  --c-primary-l:#E8F0FE;
  --c-accent:#FF7A2F;
  --c-accent-l:#FFF1E7;
  --c-teal:#12B5A8;
  --c-teal-l:#E4F7F5;
  --c-danger:#E5484D;
  --c-bg:#F5F8FC;
  --c-card:#FFFFFF;
  --c-dark:#0E2A4A;
  --t-title:#0E1F33;
  --t-body:#4A5B70;
  --t-mute:#8A98AA;
  --bd:#E6EBF2;
  --r-card:16px;
  --r-btn:10px;
  --r-img:12px;
  --r-pill:999px;
  --sh-1:0 1px 2px rgba(14,42,74,.06),0 10px 24px -14px rgba(14,42,74,.14);
  --sh-2:0 6px 16px rgba(14,42,74,.08),0 22px 40px -18px rgba(14,42,74,.22);
  --font-cn:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Noto Sans SC",system-ui,sans-serif;
  --font-num:"Inter",-apple-system,"Segoe UI",sans-serif;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  font-family:var(--font-cn);
  font-size:16px;
  line-height:1.85;
  color:var(--t-body);
  background:var(--c-bg);
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{max-width:100%;display:block;object-fit:cover}
a{color:var(--c-primary);text-decoration:none;transition:color .2s ease,opacity .2s ease}
a:hover{color:var(--c-primary-d)}
h1,h2,h3,h4{margin:0;color:var(--t-title);font-weight:700;letter-spacing:0}
p{margin:0 0 1em}
p:last-child{margin-bottom:0}
ul{margin:0;padding:0;list-style:none}
button{font-family:inherit}
:focus-visible{outline:2px solid var(--c-primary);outline-offset:2px}
.container{max-width:1200px;padding:0 24px;margin:0 auto;width:100%}
.section{padding:96px 0}
.section-tight{padding:72px 0}
.num{font-family:var(--font-num);font-variant-numeric:tabular-nums}

/* ============ 通用按钮 ============ */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;border-radius:var(--r-btn);font-size:15px;font-weight:600;padding:12px 26px;border:1.5px solid transparent;transition:all .2s ease;line-height:1.4;cursor:pointer}
.btn-primary{background:var(--c-primary);border-color:var(--c-primary);color:#fff;box-shadow:0 8px 20px -12px rgba(27,98,214,.85)}
.btn-primary:hover,.btn-primary:focus{background:var(--c-primary-d);border-color:var(--c-primary-d);color:#fff;transform:translateY(-1px);box-shadow:0 14px 26px -12px rgba(20,80,176,.75)}
.btn-outline{background:#fff;border-color:rgba(27,98,214,.45);color:var(--c-primary)}
.btn-outline:hover{background:var(--c-primary-l);border-color:var(--c-primary);color:var(--c-primary-d);transform:translateY(-1px)}
.btn-accent{background:var(--c-accent);border-color:var(--c-accent);color:#fff;box-shadow:0 8px 20px -12px rgba(255,122,47,.9)}
.btn-accent:hover{background:#ea6a1e;border-color:#ea6a1e;color:#fff;transform:translateY(-1px)}
.btn-ghost{background:transparent;border-color:rgba(255,255,255,.5);color:#fff}
.btn-ghost:hover{background:rgba(255,255,255,.12);border-color:#fff;color:#fff}
.btn-sm{padding:9px 18px;font-size:14px}
.btn-lg{padding:14px 32px;font-size:16px}
.btn-block{width:100%}

/* ============ 顶部导航 ============ */
.site-header{
  position:sticky;top:0;z-index:1030;
  background:#fff;
  border-bottom:1px solid var(--bd);
  transition:box-shadow .25s ease,background .25s ease;
}
.site-header.scrolled{box-shadow:0 8px 24px -18px rgba(14,42,74,.5)}
.header-inner{display:flex;align-items:center;gap:28px;height:68px}
.brand{display:flex;align-items:center;gap:10px;flex:0 0 auto}
.brand-mark{
  width:36px;height:36px;border-radius:10px;
  background:linear-gradient(135deg,var(--c-primary),#3d84f0);
  color:#fff;font-family:var(--font-num);font-weight:700;font-size:14px;
  display:flex;align-items:center;justify-content:center;
  box-shadow:0 6px 16px -8px rgba(27,98,214,.9);
}
.brand-text{font-size:17px;font-weight:700;color:var(--t-title);line-height:1}
.brand-text em{font-style:normal;color:var(--c-primary)}
.nav-main{display:flex;align-items:center;gap:28px;margin-right:auto}
.nav-main a{position:relative;font-size:16px;font-weight:500;color:var(--t-body);padding:6px 0}
.nav-main a::after{
  content:"";position:absolute;left:0;right:0;bottom:-2px;height:2px;border-radius:2px;
  background:var(--c-primary);transform:scaleX(0);transform-origin:left;transition:transform .22s ease;
}
.nav-main a:hover{color:var(--c-primary)}
.nav-main a:hover::after{transform:scaleX(1)}
.nav-main a.active{color:var(--c-primary);font-weight:600}
.nav-main a.active::after{transform:scaleX(1)}
.header-tools{display:flex;align-items:center;gap:14px;padding:8px 8px 8px 18px;background:var(--c-primary-l);border-radius:var(--r-pill)}
.search-box{display:flex;align-items:center;gap:8px;background:#fff;border:1px solid var(--bd);border-radius:var(--r-btn);padding:0 12px;height:38px;min-width:200px;transition:border-color .2s ease,box-shadow .2s ease}
.search-box i{color:var(--t-mute);font-size:14px}
.search-box input{border:0;outline:0;background:transparent;font-size:14px;color:var(--t-title);width:100%;font-family:inherit}
.search-box input::placeholder{color:var(--t-mute)}
.search-box:focus-within{border-color:var(--c-primary);box-shadow:0 0 0 3px rgba(27,98,214,.14)}
.nav-toggle{display:none;flex-direction:column;justify-content:center;gap:5px;width:40px;height:40px;border:1px solid var(--bd);background:#fff;border-radius:var(--r-btn);cursor:pointer;padding:0 10px}
.nav-toggle span{display:block;height:2px;border-radius:2px;background:var(--t-title);transition:transform .25s ease,opacity .25s ease}
.nav-toggle.is-open span:nth-child(1){transform:translateY(7px) rotate(45deg)}
.nav-toggle.is-open span:nth-child(2){opacity:0}
.nav-toggle.is-open span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}

/* ============ 页面标题区 ============ */
.page-head{
  position:relative;padding:72px 0 44px;text-align:center;
  background:linear-gradient(180deg,#fff 0%,#F5F8FC 100%);
  border-bottom:1px solid var(--bd);
}
.page-head::before{
  content:"";position:absolute;left:50%;top:0;transform:translateX(-50%);
  width:min(760px,86%);height:2px;border-radius:2px;
  background:linear-gradient(90deg,rgba(27,98,214,0),rgba(27,98,214,.55),rgba(27,98,214,0));
}
.crumb{display:flex;justify-content:center;gap:8px;font-size:13px;color:var(--t-mute);margin-bottom:18px;flex-wrap:wrap}
.crumb a{color:var(--t-mute)}
.crumb a:hover{color:var(--c-primary)}
.crumb span{color:#c3ccd8}
.page-head h1{font-size:clamp(28px,4vw,44px);line-height:1.22;max-width:920px;margin:0 auto}
.page-head .lead{max-width:700px;margin:18px auto 0;font-size:16px;color:var(--t-body);line-height:1.85}
.page-head .head-line{width:64px;height:3px;border-radius:3px;background:var(--c-primary);margin:26px auto 0}

/* ============ 筛选标签条 ============ */
.filter-wrap{padding:28px 0 0}
.filter-bar{display:flex;flex-wrap:wrap;gap:10px;justify-content:center}
.pill{
  border:1px solid var(--bd);background:#fff;color:var(--t-body);
  border-radius:var(--r-pill);padding:9px 20px;font-size:14px;font-weight:500;cursor:pointer;
  transition:all .2s ease;
}
.pill:hover{border-color:rgba(27,98,214,.5);color:var(--c-primary);transform:translateY(-1px)}
.pill.active{background:var(--c-primary);border-color:var(--c-primary);color:#fff;box-shadow:0 10px 22px -14px rgba(27,98,214,1)}

/* ============ 板块标题 ============ */
.block-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:34px}
.h2{display:flex;align-items:center;gap:12px;font-size:clamp(22px,2.4vw,32px);line-height:1.3}
.h2::before{content:"";width:4px;height:18px;border-radius:2px;background:var(--c-primary);flex:0 0 auto}
.block-head p{margin:12px 0 0;max-width:640px;color:var(--t-body);font-size:15px}
.head-link{font-size:14px;font-weight:600;white-space:nowrap}
.head-link:hover{text-decoration:underline;text-underline-offset:4px}

/* ============ 卖点 ============ */
.feature-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px}
.feature-item{
  background:var(--c-card);border:1px solid var(--bd);border-radius:var(--r-card);
  padding:26px 24px;box-shadow:var(--sh-1);transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.feature-item:hover{transform:translateY(-4px);box-shadow:var(--sh-2);border-color:rgba(27,98,214,.32)}
.feature-icon{
  width:44px;height:44px;border-radius:12px;display:flex;align-items:center;justify-content:center;
  background:var(--c-primary-l);color:var(--c-primary);font-size:18px;margin-bottom:16px;
}
.feature-item:nth-child(2) .feature-icon{background:var(--c-teal-l);color:var(--c-teal)}
.feature-item:nth-child(3) .feature-icon{background:var(--c-accent-l);color:var(--c-accent)}
.feature-item:nth-child(4) .feature-icon{background:#EDF1F7;color:var(--c-dark)}
.feature-item h3{font-size:17px;margin-bottom:8px}
.feature-item p{font-size:14.5px;color:var(--t-body);margin:0;line-height:1.8}

/* ============ 攻略卡片网格 ============ */
.guide-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.guide-card{
  position:relative;background:var(--c-card);border:1px solid var(--bd);border-radius:var(--r-card);
  overflow:hidden;box-shadow:var(--sh-1);display:flex;flex-direction:column;
  transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease;
}
.guide-card:hover{transform:translateY(-4px);box-shadow:var(--sh-2);border-color:rgba(27,98,214,.3)}
.card-media{position:relative;aspect-ratio:16/9;overflow:hidden;background:#dde5ef}
.card-media img{width:100%;height:100%;transition:transform .35s ease}
.guide-card:hover .card-media img{transform:scale(1.04)}
.num-badge{
  position:absolute;left:14px;top:14px;width:32px;height:32px;border-radius:50%;
  background:#fff;color:var(--c-primary);font-family:var(--font-num);font-weight:700;font-size:13px;
  display:flex;align-items:center;justify-content:center;box-shadow:0 6px 16px -8px rgba(14,42,74,.7);
}
.card-body{padding:22px 22px 20px;display:flex;flex-direction:column;flex:1}
.tag{display:inline-flex;align-items:center;gap:6px;font-size:12px;font-weight:500;padding:4px 12px;border-radius:var(--r-pill);background:var(--c-teal-l);color:#0a8d83;margin-bottom:12px;align-self:flex-start}
.tag.tag-blue{background:var(--c-primary-l);color:var(--c-primary-d)}
.tag.tag-orange{background:var(--c-accent-l);color:#c9550f}
.card-body h3{font-size:18px;line-height:1.5;margin-bottom:10px;transition:color .2s ease}
.guide-card:hover .card-body h3{color:var(--c-primary)}
.card-body p{font-size:14.5px;color:var(--t-body);margin:0;line-height:1.8}
.card-meta{
  margin-top:18px;padding-top:14px;border-top:1px solid var(--bd);
  display:flex;align-items:center;justify-content:space-between;gap:12px;
  font-size:13px;color:var(--t-mute);
}
.card-meta .m-item{display:inline-flex;align-items:center;gap:6px}
.card-meta i{font-size:13px}
.card-meta .arrow{color:var(--c-primary);font-size:14px;transition:transform .2s ease}
.guide-card:hover .card-meta .arrow{transform:translateX(4px)}
.guide-card.is-hidden{display:none}

/* ============ 底部 CTA 条（跨列） ============ */
.cta-bar{
  grid-column:1/-1;position:relative;overflow:hidden;border-radius:20px;
  background:linear-gradient(100deg,#0E2A4A 0%,#123A63 55%,#1B62D6 100%);
  padding:34px 40px;display:flex;align-items:center;justify-content:space-between;gap:28px;
  box-shadow:0 24px 44px -26px rgba(14,42,74,.9);
}
.cta-bar::after{
  content:"";position:absolute;right:-60px;top:-60px;width:280px;height:280px;border-radius:50%;
  background:radial-gradient(circle,rgba(255,122,47,.35),rgba(255,122,47,0) 68%);
}
.cta-bar .cta-text{position:relative;z-index:1}
.cta-bar h3{color:#fff;font-size:clamp(19px,2vw,24px);margin-bottom:8px}
.cta-bar p{color:rgba(255,255,255,.78);font-size:14.5px;margin:0;max-width:640px}
.cta-bar .cta-act{position:relative;z-index:1;flex:0 0 auto}

/* ============ 操作流程 ============ */
.flow-section{background:#fff;border-top:1px solid var(--bd);border-bottom:1px solid var(--bd)}
.flow-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px;position:relative}
.flow-item{position:relative;padding:26px 22px;border-radius:var(--r-card);background:var(--c-bg);border:1px solid var(--bd);transition:transform .2s ease,box-shadow .2s ease}
.flow-item:hover{transform:translateY(-4px);box-shadow:var(--sh-2)}
.flow-num{
  font-family:var(--font-num);font-size:13px;font-weight:700;color:var(--c-primary);
  background:#fff;border:1px solid rgba(27,98,214,.3);border-radius:var(--r-pill);
  padding:4px 14px;display:inline-block;margin-bottom:16px;
}
.flow-item h3{font-size:17px;margin-bottom:10px}
.flow-item p{font-size:14.5px;margin:0;line-height:1.8}
.flow-item::after{
  content:"";position:absolute;right:-14px;top:52px;width:14px;height:2px;background:rgba(27,98,214,.35);
}
.flow-grid .flow-item:last-child::after{display:none}

/* ============ 路线对比 ============ */
.compare-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:24px}
.compare-card{
  background:var(--c-card);border:1px solid var(--bd);border-radius:var(--r-card);
  padding:30px;box-shadow:var(--sh-1);transition:transform .2s ease,box-shadow .2s ease;
}
.compare-card:hover{transform:translateY(-4px);box-shadow:var(--sh-2)}
.compare-card.recommend{border-color:rgba(27,98,214,.5);box-shadow:0 10px 30px -18px rgba(27,98,214,.7)}
.compare-top{display:flex;align-items:center;justify-content:space-between;gap:16px;margin-bottom:18px}
.compare-top h3{font-size:20px}
.badge-rec{background:var(--c-accent-l);color:#c9550f;font-size:12px;font-weight:600;padding:4px 12px;border-radius:var(--r-pill)}
.score-row{display:flex;align-items:center;gap:12px;margin-bottom:10px;font-size:14px}
.score-row .label{flex:0 0 88px;color:var(--t-body)}
.score-track{flex:1;height:8px;border-radius:999px;background:#EDF1F7;overflow:hidden}
.score-fill{display:block;height:100%;border-radius:999px;background:linear-gradient(90deg,var(--c-primary),#4a8cf0)}
.compare-card.recommend .score-fill{background:linear-gradient(90deg,var(--c-teal),#3fd3c6)}
.score-row .val{font-family:var(--font-num);font-size:13px;color:var(--t-mute);flex:0 0 34px;text-align:right}
.compare-list{margin-top:20px;padding-top:18px;border-top:1px solid var(--bd);display:grid;gap:10px}
.compare-list li{display:flex;gap:10px;font-size:14.5px;line-height:1.75}
.compare-list i{color:var(--c-primary);margin-top:6px;font-size:13px}
.compare-list li.muted{color:var(--t-mute)}
.compare-list li.muted i{color:#c3ccd8}

/* ============ 反馈摘录 ============ */
.quote-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.quote-card{
  background:var(--c-card);border:1px solid var(--bd);border-radius:var(--r-card);
  padding:26px;box-shadow:var(--sh-1);display:flex;flex-direction:column;gap:16px;
  transition:transform .2s ease,box-shadow .2s ease;
}
.quote-card:hover{transform:translateY(-4px);box-shadow:var(--sh-2)}
.quote-stars{color:var(--c-accent);font-size:13px;letter-spacing:2px}
.quote-card p{font-size:15px;line-height:1.85;color:var(--t-body);margin:0}
.quote-user{display:flex;align-items:center;gap:12px;margin-top:auto;padding-top:16px;border-top:1px solid var(--bd)}
.avatar{width:36px;height:36px;border-radius:50%;background:var(--c-primary-l);color:var(--c-primary);font-weight:700;font-size:14px;display:flex;align-items:center;justify-content:center;font-family:var(--font-num)}
.quote-user span{font-size:13.5px;color:var(--t-mute)}

/* ============ FAQ ============ */
.faq-layout{display:grid;grid-template-columns:4fr 8fr;gap:48px;align-items:start}
.faq-side h2{font-size:clamp(22px,2.4vw,30px);line-height:1.3;display:block;margin-bottom:16px}
.faq-side h2::before{content:"";display:block;width:4px;height:18px;border-radius:2px;background:var(--c-primary);margin-bottom:16px}
.faq-side p{font-size:15px;color:var(--t-body)}
.faq-side .side-note{margin-top:24px;padding:18px 20px;background:var(--c-primary-l);border-radius:var(--r-card);font-size:14px;color:var(--c-primary-d)}
.faq-list{display:grid;gap:14px}
.faq-item{background:var(--c-card);border:1px solid var(--bd);border-radius:var(--r-card);box-shadow:var(--sh-1);overflow:hidden;transition:border-color .2s ease,box-shadow .2s ease}
.faq-item.open{border-color:rgba(27,98,214,.42);box-shadow:var(--sh-2)}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:18px;
  background:transparent;border:0;padding:20px 24px;text-align:left;cursor:pointer;
  font-size:17px;font-weight:600;color:var(--t-title);line-height:1.6;
}
.faq-q:hover{color:var(--c-primary)}
.faq-ico{position:relative;flex:0 0 24px;width:24px;height:24px}
.faq-ico::before,.faq-ico::after{
  content:"";position:absolute;left:50%;top:50%;background:var(--c-primary);border-radius:2px;
  transition:transform .25s ease;
}
.faq-ico::before{width:14px;height:2px;transform:translate(-50%,-50%)}
.faq-ico::after{width:2px;height:14px;transform:translate(-50%,-50%)}
.faq-item.open .faq-ico::after{transform:translate(-50%,-50%) rotate(90deg);opacity:0}
.faq-a{max-height:0;overflow:hidden;transition:max-height .3s ease}
.faq-a-inner{padding:0 24px 22px;font-size:15px;line-height:1.85;color:var(--t-body)}

/* ============ 页脚 ============ */
.site-footer{background:var(--c-dark);color:rgba(255,255,255,.72);padding:72px 0 0;margin-top:0}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:32px;padding-bottom:48px}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:18px}
.footer-brand .brand-mark{background:linear-gradient(135deg,#2b7bff,#1B62D6)}
.footer-brand .brand-text{color:#fff}
.footer-brand .brand-text em{color:#7fb0ff}
.footer-about{font-size:14px;line-height:1.85;color:rgba(255,255,255,.66);max-width:340px}
.footer-col h4{color:#fff;font-size:15px;font-weight:600;margin-bottom:18px}
.footer-links{display:grid;gap:10px}
.footer-links a{color:rgba(255,255,255,.72);font-size:14px;transition:color .18s ease,transform .18s ease;display:inline-block}
.footer-links a:hover{color:#fff;transform:translateX(2px)}
.footer-contact{display:grid;gap:12px}
.footer-contact li{display:flex;gap:10px;font-size:14px;color:rgba(255,255,255,.72);line-height:1.7}
.footer-contact i{margin-top:6px;color:#7fb0ff;font-size:13px}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.12);padding:22px 0;
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  font-size:13px;color:rgba(255,255,255,.56);flex-wrap:wrap;
}

/* ============ 响应式 ============ */
@media (max-width:1199.98px){
  .feature-grid{grid-template-columns:repeat(2,1fr)}
  .guide-grid{grid-template-columns:repeat(2,1fr)}
  .flow-grid{grid-template-columns:repeat(2,1fr)}
  .flow-item::after{display:none}
  .quote-grid{grid-template-columns:repeat(2,1fr)}
}
@media (max-width:991.98px){
  .section{padding:72px 0}
  .section-tight{padding:56px 0}
  .nav-toggle{display:flex}
  .header-tools{padding:6px;background:transparent;gap:10px}
  .search-box{display:none}
  .nav-main{
    position:fixed;inset:60px 0 0 0;background:#fff;flex-direction:column;align-items:stretch;
    gap:0;padding:16px 24px 40px;transform:translateX(100%);transition:transform .28s ease;
    overflow-y:auto;margin-right:0;z-index:1029;
  }
  .nav-main.open{transform:translateX(0);box-shadow:-16px 0 40px -24px rgba(14,42,74,.6)}
  .nav-main a{padding:16px 4px;border-bottom:1px solid var(--bd);font-size:17px}
  .nav-main a::after{display:none}
  .nav-main a.active{border-left:3px solid var(--c-primary);padding-left:12px}
  .faq-layout{grid-template-columns:1fr;gap:32px}
  .compare-grid{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
  .cta-bar{flex-direction:column;align-items:flex-start;gap:20px;padding:30px}
}
@media (max-width:767.98px){
  .container{padding:0 16px}
  .page-head{padding:52px 0 34px}
  .block-head{flex-direction:column;align-items:flex-start;gap:12px}
  .feature-grid{grid-template-columns:1fr}
  .guide-grid{grid-template-columns:1fr}
  .flow-grid{grid-template-columns:1fr}
  .quote-grid{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr}
  .footer-bottom{flex-direction:column;align-items:flex-start;gap:8px}
  .btn-block-sm{width:100%}
  .cta-bar{border-radius:16px}
}
@media (max-width:575.98px){
  .section{padding:56px 0}
  .page-head h1{font-size:26px}
  .btn{padding:11px 20px;font-size:14.5px}
  .faq-q{font-size:16px;padding:18px}
  .faq-a-inner{padding:0 18px 20px}
}
.nav-open{overflow:hidden}