/* roulang page: index */
:root{
  --brand-900:#0B3B57;
  --brand-700:#0E6A8A;
  --brand-500:#2E9BB5;
  --accent:#F97316;
  --accent-hover:#EA580C;
  --bg:#F5F9FC;
  --surface:#FFFFFF;
  --text:#102A3A;
  --muted:#5B7280;
  --border:#DCE8F0;
  --success:#1F9D74;
  --radius-card:18px;
  --radius-btn:12px;
  --radius-img:16px;
  --shadow-card:0 10px 30px rgba(11,59,87,.08);
  --shadow-card-hover:0 16px 36px rgba(11,59,87,.12);
  --shadow-nav:0 6px 24px rgba(11,59,87,.08);
  --max-width:1200px;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:"Noto Sans SC","PingFang SC","Microsoft YaHei",system-ui,sans-serif;
  background:var(--bg);
  color:var(--text);
  font-size:16px;
  line-height:1.75;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;}
a{color:inherit;text-decoration:none;}
button{font:inherit;cursor:pointer;border:0;background:none;color:inherit;}
h1,h2,h3,h4,p,ul,ol,figure{margin:0;}
ul,ol{padding:0;list-style:none;}
input{font:inherit;}
:focus-visible{outline:2px solid var(--accent);outline-offset:2px;}
.container{width:100%;max-width:var(--max-width);margin:0 auto;padding:0 20px;}
.section{padding:56px 0;}
@media (min-width:768px){
  .container{padding:0 32px;}
  .section{padding:80px 0;}
}
@media (min-width:1024px){
  .section{padding:92px 0;}
}

/* ---------- 顶部公告条 ---------- */
.notice-bar{
  background:linear-gradient(90deg,#0B3B57,#0E6A8A);
  color:#E8F4F9;
  font-size:13.5px;
}
.notice-inner{
  display:flex;align-items:center;gap:12px;
  min-height:44px;padding-top:8px;padding-bottom:8px;
}
.notice-badge{
  flex:none;display:inline-flex;align-items:center;gap:6px;
  background:rgba(249,115,22,.16);color:#FFD6B2;
  border:1px solid rgba(249,115,22,.42);
  border-radius:999px;padding:2px 10px;font-size:12px;letter-spacing:.02em;
}
.notice-text{flex:1;min-width:0;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;}
.notice-text a{border-bottom:1px dashed rgba(255,255,255,.4);}
.notice-text a:hover{color:#FFB981;border-bottom-color:#FFB981;}
.notice-close{
  flex:none;width:26px;height:26px;border-radius:8px;
  display:inline-flex;align-items:center;justify-content:center;
  color:#CFE6EF;transition:background .18s ease,color .18s ease;
}
.notice-close:hover{background:rgba(255,255,255,.12);color:#fff;}
.notice-bar.is-hidden{display:none;}

/* ---------- 导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(255,255,255,.96);
  border-bottom:1px solid var(--border);
  transition:box-shadow .2s ease;
}
.site-header.is-scrolled{box-shadow:var(--shadow-nav);}
.nav-wrap{display:flex;align-items:center;gap:20px;height:72px;}
.logo{display:inline-flex;align-items:center;gap:10px;flex:none;}
.logo-mark{
  width:34px;height:34px;border-radius:11px;
  background:linear-gradient(140deg,#0E6A8A,#2E9BB5);
  display:inline-flex;align-items:center;justify-content:center;
  box-shadow:0 6px 14px rgba(14,106,138,.28);
}
.logo-text{
  font-size:19px;font-weight:800;letter-spacing:-.01em;color:var(--brand-900);
  white-space:nowrap;
}
.logo-text .logo-dot{color:var(--accent);}
.main-nav{display:none;align-items:center;gap:4px;margin-left:12px;}
.nav-link{
  position:relative;display:inline-flex;align-items:center;
  padding:8px 14px;border-radius:10px;
  font-size:15px;font-weight:500;color:#254A60;
  transition:color .18s ease,background .18s ease;
}
.nav-link:hover{color:var(--brand-700);background:#EFF7FB;}
.nav-link.active{color:var(--brand-900);font-weight:700;}
.nav-link.active::after{
  content:"";position:absolute;left:14px;right:14px;bottom:-2px;
  height:2px;border-radius:2px;background:var(--accent);
}
.nav-actions{display:flex;align-items:center;gap:10px;margin-left:auto;}
.nav-search{
  display:none;align-items:center;gap:8px;
  width:248px;height:40px;padding:0 12px;
  background:#F4F9FC;border:1px solid var(--border);border-radius:var(--radius-btn);
  transition:border-color .18s ease,box-shadow .18s ease,background .18s ease;
}
.nav-search:focus-within{
  background:#fff;border-color:#F7B27C;
  box-shadow:0 0 0 3px rgba(249,115,22,.16);
}
.nav-search input{
  width:100%;border:0;background:transparent;outline:none;
  font-size:14px;color:var(--text);
}
.nav-search input::placeholder{color:#8CA0AE;}
.nav-login{
  display:none;font-size:14.5px;font-weight:600;color:#2C556C;
  padding:8px 10px;border-radius:10px;transition:color .18s ease,background .18s ease;
}
.nav-login:hover{color:var(--accent);background:#FFF4EC;}
.nav-toggle{
  width:42px;height:42px;border-radius:12px;border:1px solid var(--border);
  display:inline-flex;align-items:center;justify-content:center;background:#fff;
  color:var(--brand-900);transition:background .18s ease,border-color .18s ease;
}
.nav-toggle:hover{background:#F1F8FB;border-color:#BBD5E4;}
@media (min-width:1024px){
  .main-nav{display:flex;}
  .nav-search{display:flex;}
  .nav-login{display:inline-flex;}
  .nav-toggle{display:none;}
}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:50px;padding:0 24px;border-radius:var(--radius-btn);
  font-size:15.5px;font-weight:700;letter-spacing:.01em;
  border:1px solid transparent;
  transition:transform .16s ease,background .18s ease,border-color .18s ease,box-shadow .18s ease,color .18s ease;
}
.btn:active{transform:scale(.98);}
.btn-primary{background:var(--accent);color:#fff;box-shadow:0 8px 20px rgba(249,115,22,.26);}
.btn-primary:hover{background:var(--accent-hover);transform:translateY(-1px);box-shadow:0 12px 26px rgba(249,115,22,.32);}
.btn-outline{background:#fff;color:var(--brand-900);border-color:#B7D2E1;}
.btn-outline:hover{background:#EFF7FB;border-color:var(--brand-500);transform:translateY(-1px);}
.btn-sm{height:40px;padding:0 16px;font-size:14px;border-radius:10px;}
.btn-block{width:100%;}
.text-link{
  display:inline-flex;align-items:center;gap:6px;
  color:var(--brand-700);font-weight:700;font-size:14.5px;
  transition:color .18s ease;
}
.text-link span{transition:transform .18s ease;}
.text-link:hover{color:var(--accent);text-decoration:underline;text-underline-offset:3px;}
.text-link:hover span{transform:translateX(3px);}

/* ---------- 通用标题 ---------- */
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;font-weight:700;letter-spacing:.08em;color:var(--brand-700);
  text-transform:uppercase;
}
.eyebrow::before{content:"";width:22px;height:2px;border-radius:2px;background:var(--accent);}
.section-title{
  font-size:28px;line-height:1.25;font-weight:800;letter-spacing:-.01em;
  color:var(--brand-900);margin-top:10px;
}
.section-desc{color:var(--muted);font-size:15.5px;line-height:1.85;margin-top:12px;max-width:640px;}
.section-head{
  display:flex;flex-wrap:wrap;align-items:flex-end;justify-content:space-between;
  gap:16px;margin-bottom:32px;
}
@media (min-width:768px){
  .section-title{font-size:32px;}
}
@media (min-width:1024px){
  .section-title{font-size:35px;}
}

/* ---------- Hero ---------- */
.hero{
  position:relative;overflow:hidden;
  background:
    linear-gradient(180deg,#F7FBFD 0%,#EEF6FB 62%,#F5F9FC 100%);
  border-bottom:1px solid var(--border);
}
.hero::before{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:repeating-linear-gradient(115deg,rgba(46,155,181,.055) 0 1px,transparent 1px 14px);
  opacity:.9;
}
.hero-inner{position:relative;padding:44px 0 36px;}
.hero-grid{display:grid;gap:36px;align-items:center;}
.hero-tag{
  display:inline-flex;align-items:center;gap:8px;
  background:#fff;border:1px solid #CFE3EE;color:var(--brand-700);
  border-radius:999px;padding:6px 14px;font-size:13px;font-weight:700;
  box-shadow:0 4px 12px rgba(11,59,87,.06);
}
.hero-tag i{width:7px;height:7px;border-radius:50%;background:var(--success);display:inline-block;}
.hero-title{
  margin-top:18px;
  font-size:clamp(2.2rem,5vw,3.7rem);
  line-height:1.15;font-weight:800;letter-spacing:-.02em;color:var(--brand-900);
}
.hero-title .line{display:block;}
.hero-title .line-accent{color:var(--brand-700);}
.hero-sub{
  margin-top:18px;font-size:18px;line-height:1.8;color:#456274;max-width:560px;
}
.hero-cta{display:flex;flex-wrap:wrap;gap:14px;margin-top:28px;}
.hero-points{display:flex;flex-wrap:wrap;gap:10px 22px;margin-top:26px;padding-top:22px;border-top:1px solid #D9E7F0;}
.hero-points li{
  display:inline-flex;align-items:center;gap:8px;
  font-size:14px;color:#3E5D70;font-weight:500;
}
.hero-points svg{flex:none;color:var(--brand-500);}
.hero-visual{position:relative;}
.hero-media{
  position:relative;border-radius:24px;overflow:hidden;
  box-shadow:0 24px 50px rgba(11,59,87,.16);
  border:1px solid #D7E6EF;background:#E7F2F8;
  aspect-ratio:16/11;
}
.hero-media img{width:100%;height:100%;object-fit:cover;}
.hero-flag{
  position:absolute;left:18px;top:18px;
  background:var(--accent);color:#fff;font-size:12.5px;font-weight:700;
  padding:7px 14px;border-radius:999px;letter-spacing:.02em;
  box-shadow:0 8px 18px rgba(249,115,22,.3);
}
.hero-card{
  position:absolute;right:16px;bottom:-22px;
  background:#fff;border:1px solid var(--border);border-radius:16px;
  padding:14px 16px;min-width:210px;
  box-shadow:0 18px 36px rgba(11,59,87,.16);
}
.hero-card-label{font-size:12px;color:var(--muted);letter-spacing:.03em;}
.hero-card-value{font-size:24px;font-weight:800;color:var(--brand-900);line-height:1.3;}
.hero-card-value small{font-size:13px;font-weight:600;color:var(--brand-500);margin-left:4px;}
.hero-card-bar{height:6px;border-radius:999px;background:#E7F1F7;margin-top:10px;overflow:hidden;}
.hero-card-bar span{display:block;height:100%;width:72%;border-radius:999px;background:linear-gradient(90deg,var(--brand-500),var(--accent));}
@media (min-width:900px){
  .hero-inner{padding:64px 0 52px;}
  .hero-grid{grid-template-columns:7fr 5fr;gap:48px;}
  .hero-card{bottom:-26px;right:-14px;}
}

/* ---------- 信任条 ---------- */
.trust-bar{background:#fff;border-bottom:1px solid var(--border);}
.trust-grid{
  display:grid;grid-template-columns:1fr;gap:18px;padding:24px 0;
}
.trust-item{display:flex;align-items:flex-start;gap:12px;}
.trust-icon{
  flex:none;width:38px;height:38px;border-radius:11px;
  background:#EAF5FA;color:var(--brand-700);
  display:inline-flex;align-items:center;justify-content:center;
}
.trust-item h3{font-size:15px;font-weight:700;color:var(--brand-900);line-height:1.5;}
.trust-item p{font-size:13.5px;color:var(--muted);line-height:1.7;margin-top:2px;}
@media (min-width:640px){.trust-grid{grid-template-columns:1fr 1fr;}}
@media (min-width:1024px){.trust-grid{grid-template-columns:repeat(4,1fr);gap:24px;padding:28px 0;}}

/* ---------- 卖点三连 ---------- */
.feature-wrap{display:grid;gap:24px;}
.feature-main,.feature-side-card{
  background:var(--surface);border:1px solid var(--border);border-radius:var(--radius-card);
  padding:26px;box-shadow:var(--shadow-card);
  transition:transform .18s ease,box-shadow .18s ease,border-color .18s ease;
}
.feature-main:hover,.feature-side-card:hover{
  transform:translateY(-4px);box-shadow:var(--shadow-card-hover);border-color:#C7DEEC;
}
.feature-main{display:flex;flex-direction:column;gap:14px;}
.feature-num{
  font-size:13px;font-weight:800;letter-spacing:.14em;color:var(--brand-500);
}
.feature-icon{
  width:46px;height:46px;border-radius:13px;background:#EAF5FA;color:var(--brand-700);
  display:inline-flex;align-items:center;justify-content:center;
}
.feature-main h3{font-size:22px;font-weight:800;color:var(--brand-900);line-height:1.35;}
.feature-main p{color:var(--muted);font-size:15.5px;line-height:1.85;}
.feature-panel{display:grid;gap:24px;}
.feature-side-card{display:flex;flex-direction:column;gap:10px;}
.feature-side-card h3{font-size:18px;font-weight:800;color:var(--brand-900);line-height:1.4;}
.feature-side-card p{color:var(--muted);font-size:14.5px;line-height:1.8;}
@media (min-width:900px){
  .feature-wrap{grid-template-columns:7fr 5fr;align-items:stretch;}
  .feature-main{padding:32px;}
}

/* ---------- 场景演示 ---------- */
.scene{background:#EAF5FA;border-top:1px solid #DCEAF2;border-bottom:1px solid #DCEAF2;}
.scene-grid{display:grid;gap:32px;align-items:center;}
.scene-media{position:relative;border-radius:18px;overflow:hidden;border:1px solid #CFE3EE;box-shadow:0 16px 34px rgba(11,59,87,.12);}
.scene-media img{width:100%;height:100%;object-fit:cover;aspect-ratio:16/11;}
.scene-tag{
  position:absolute;background:#fff;color:var(--brand-900);
  font-size:12.5px;font-weight:700;padding:6px 12px;border-radius:999px;
  border:1px solid #D8E8F1;box-shadow:0 6px 16px rgba(11,59,87,.12);
}
.scene-tag.t1{left:16px;top:16px;}
.scene-tag.t2{right:16px;bottom:16px;background:var(--accent);color:#fff;border-color:var(--accent);}
.scene-copy h2{font-size:28px;line-height:1.3;font-weight:800;color:var(--brand-900);letter-spacing:-.01em;margin-top:10px;}
.scene-copy p{margin-top:14px;color:#3F5F72;font-size:16px;line-height:1.85;}
.scene-copy .btn{margin-top:24px;}
.steps{
  display:grid;gap:22px;margin-top:44px;padding-top:36px;border-top:1px solid #CFE3EE;
}
.step{display:flex;gap:14px;align-items:flex-start;}
.step-num{
  flex:none;width:32px;height:32px;border-radius:50%;
  background:#fff;border:1px solid #BBD8E7;color:var(--brand-700);
  display:inline-flex;align-items:center;justify-content:center;
  font-size:14px;font-weight:800;
}
.step h3{font-size:16px;font-weight:800;color:var(--brand-900);}
.step p{font-size:14px;color:#4A6779;line-height:1.8;margin-top:2px;}
@media (min-width:900px){
  .scene-grid{grid-template-columns:6fr 6fr;gap:48px;}
  .scene-copy h2{font-size:33px;}
  .steps{grid-template-columns:repeat(3,1fr);gap:24px;position:relative;}
  .steps::before{
    content:"";position:absolute;left:0;right:0;top:16px;height:1px;background:#C3DCEA;
  }
  .step{position:relative;z-index:1;}
}

/* ---------- 社会认同 ---------- */
.proof{background:#fff;border-bottom:1px solid var(--border);}
.stats{
  display:grid;grid-template-columns:1fr 1fr;gap:20px;
  padding:26px;background:#F6FBFD;border:1px solid var(--border);border-radius:var(--radius-card);
}
.stat-value{font-size:30px;font-weight:800;color:var(--brand-900);line-height:1.15;letter-spacing:-.02em;}
.stat-value small{font-size:14px;font-weight:700;color:var(--brand-500);margin-left:3px;}
.stat-label{font-size:13.5px;color:var(--muted);margin-top:4px;}
.logo-wall{
  display:grid;grid-template-columns:repeat(2,1fr);gap:12px;margin-top:26px;
}
.logo-wall span{
  display:flex;align-items:center;justify-content:center;
  height:56px;border-radius:12px;border:1px dashed #D5E5EF;
  background:#FBFDFE;color:#8DA2B1;font-size:14px;font-weight:700;letter-spacing:.02em;
}
.quote-grid{display:grid;gap:20px;margin-top:32px;}
.quote-card{
  background:#FBFDFE;border:1px solid var(--border);border-radius:var(--radius-card);
  padding:22px;box-shadow:0 6px 18px rgba(11,59,87,.05);
}
.quote-text{font-size:15.5px;line-height:1.85;color:#335264;}
.quote-person{display:flex;align-items:center;gap:12px;margin-top:18px;padding-top:16px;border-top:1px solid #E4EFF6;}
.avatar{
  width:40px;height:40px;border-radius:50%;flex:none;
  background:linear-gradient(140deg,#2E9BB5,#0E6A8A);
  color:#fff;font-size:14px;font-weight:800;
  display:inline-flex;align-items:center;justify-content:center;
}
.quote-name{font-size:14px;font-weight:700;color:var(--brand-900);}
.quote-role{font-size:12.5px;color:var(--muted);}
@media (min-width:640px){
  .stats{grid-template-columns:repeat(4,1fr);}
  .logo-wall{grid-template-columns:repeat(3,1fr);}
}
@media (min-width:900px){
  .quote-grid{grid-template-columns:repeat(3,1fr);}
  .proof-grid{display:grid;grid-template-columns:5fr 7fr;gap:40px;align-items:start;}
  .logo-wall{margin-top:0;grid-template-columns:repeat(2,1fr);}
}
@media (min-width:1024px){
  .logo-wall{grid-template-columns:repeat(3,1fr);}
}

/* ---------- 最新资讯 ---------- */
.latest-grid{display:grid;gap:26px;}
.card{
  background:var(--surface);border:1px solid var(--border);border-radius:var(--radius-card);
  box-shadow:var(--shadow-card);overflow:hidden;
  transition:transform .18s ease,box-shadow .18s ease;
}
.card:hover{transform:translateY(-4px);box-shadow:var(--shadow-card-hover);}
.post-main-media{position:relative;display:block;aspect-ratio:16/9;background:#E7F2F8;overflow:hidden;}
.post-main-media img{width:100%;height:100%;object-fit:cover;transition:transform .3s ease;}
.post-main:hover .post-main-media img{transform:scale(1.03);}
.badge{
  display:inline-flex;align-items:center;
  border-radius:999px;padding:3px 11px;font-size:12px;font-weight:700;
  background:#EAF5FA;color:var(--brand-700);
}
.badge-accent{background:var(--accent);color:#fff;}
.post-main-media .badge{position:absolute;left:14px;top:14px;box-shadow:0 6px 14px rgba(11,59,87,.18);}
.post-main-body{padding:22px;}
.post-title{font-size:21px;line-height:1.45;font-weight:800;color:var(--brand-900);}
.post-title a:hover{color:var(--brand-700);}
.post-excerpt{
  margin-top:10px;color:var(--muted);font-size:14.5px;line-height:1.85;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.post-meta{
  display:flex;align-items:center;gap:10px;margin-top:16px;padding-top:14px;
  border-top:1px solid #E8F1F6;font-size:13px;color:#7A8FA0;flex-wrap:wrap;
}
.dot{width:3px;height:3px;border-radius:50%;background:#C3D6E2;display:inline-block;}
.post-list{display:grid;gap:14px;}
.post-item{
  display:flex;gap:14px;
  background:var(--surface);border:1px solid var(--border);border-radius:14px;
  padding:14px;box-shadow:0 4px 14px rgba(11,59,87,.05);
  transition:transform .18s ease,box-shadow .18s ease,border-color .18s ease;
}
.post-item:hover{transform:translateY(-2px);box-shadow:var(--shadow-card-hover);border-color:#C7DEEC;}
.post-item-thumb{
  flex:none;width:88px;height:66px;border-radius:10px;overflow:hidden;background:#E7F2F8;
}
.post-item-thumb img{width:100%;height:100%;object-fit:cover;}
.post-item-body{min-width:0;}
.post-item-title{
  font-size:15.5px;font-weight:700;color:var(--brand-900);line-height:1.5;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.post-item-title a:hover{color:var(--brand-700);}
.post-item-excerpt{
  margin-top:5px;font-size:13px;color:var(--muted);line-height:1.7;
  display:-webkit-box;-webkit-line-clamp:1;-webkit-box-orient:vertical;overflow:hidden;
}
.post-item-meta{display:flex;align-items:center;gap:8px;margin-top:8px;font-size:12.5px;color:#8CA0AE;flex-wrap:wrap;}
.empty-state{
  background:var(--surface);border:1px dashed #C9DFEC;border-radius:var(--radius-card);
  padding:48px 24px;text-align:center;
}
.empty-state svg{color:#A8C4D4;margin:0 auto 12px;}
.empty-state p{color:var(--muted);font-size:15px;}
@media (min-width:900px){
  .latest-grid{grid-template-columns:7fr 5fr;align-items:start;}
  .post-list{align-content:start;}
}

/* ---------- FAQ ---------- */
.faq{background:#fff;border-top:1px solid var(--border);border-bottom:1px solid var(--border);}
.faq-grid{display:grid;gap:28px;}
.faq-left h2{font-size:28px;line-height:1.3;font-weight:800;color:var(--brand-900);letter-spacing:-.01em;margin-top:10px;}
.faq-left p{margin-top:14px;color:var(--muted);font-size:15px;line-height:1.85;}
.faq-list{display:grid;gap:12px;}
.faq-item{
  background:#fff;border:1px solid var(--border);border-radius:14px;
  transition:background .18s ease,border-color .18s ease,box-shadow .18s ease;
  overflow:hidden;
}
.faq-item.open{background:#F2F9FD;border-color:#BFDCEB;box-shadow:0 8px 22px rgba(11,59,87,.07);}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:18px 20px;text-align:left;font-size:16.5px;font-weight:700;color:var(--brand-900);
  line-height:1.5;
}
.faq-q:hover{color:var(--brand-700);}
.faq-icon{
  flex:none;width:26px;height:26px;border-radius:8px;border:1px solid #CBDDE9;
  display:inline-flex;align-items:center;justify-content:center;color:var(--brand-700);
  background:#fff;transition:transform .22s ease,background .18s ease,color .18s ease,border-color .18s ease;
}
.faq-item.open .faq-icon{transform:rotate(45deg);background:var(--accent);border-color:var(--accent);color:#fff;}
.faq-a{max-height:0;overflow:hidden;transition:max-height .28s ease;}
.faq-a-inner{padding:0 20px 20px;font-size:15px;line-height:1.85;color:#42606F;}
@media (min-width:900px){
  .faq-grid{grid-template-columns:4fr 8fr;gap:48px;align-items:start;}
  .faq-left h2{font-size:32px;}
}

/* ---------- 底部 CTA ---------- */
.cta-section{padding:56px 0 64px;}
.cta-panel{
  position:relative;overflow:hidden;
  background:linear-gradient(120deg,#0B3B57 0%,#0E5570 100%);
  border-radius:24px;padding:32px 24px;color:#fff;
  box-shadow:0 24px 50px rgba(11,59,87,.24);
}
.cta-panel::after{
  content:"";position:absolute;right:-60px;top:-60px;width:240px;height:240px;border-radius:50%;
  background:rgba(46,155,181,.28);filter:blur(2px);pointer-events:none;
}
.cta-inner{position:relative;display:grid;gap:26px;}
.cta-copy h2{font-size:24px;line-height:1.35;font-weight:800;letter-spacing:-.01em;}
.cta-copy p{margin-top:12px;font-size:14.5px;line-height:1.85;color:#C8E2EE;max-width:520px;}
.cta-form{display:grid;gap:12px;}
.form-field{display:grid;gap:6px;}
.form-field label{font-size:13px;font-weight:600;color:#BFDCEB;}
.form-field input{
  height:48px;border-radius:12px;border:1px solid rgba(255,255,255,.22);
  background:rgba(255,255,255,.08);color:#fff;padding:0 14px;font-size:14.5px;
  transition:border-color .18s ease,background .18s ease,box-shadow .18s ease;
}
.form-field input::placeholder{color:#9FBECE;}
.form-field input:focus{
  outline:none;border-color:var(--accent);background:rgba(255,255,255,.14);
  box-shadow:0 0 0 3px rgba(249,115,22,.28);
}
.form-note{font-size:12.5px;color:#9FBECE;line-height:1.7;}
@media (min-width:900px){
  .cta-section{padding:72px 0 88px;}
  .cta-panel{padding:44px 44px;}
  .cta-inner{grid-template-columns:6fr 6fr;align-items:center;gap:44px;}
  .cta-copy h2{font-size:31px;}
  .cta-form{grid-template-columns:1fr 1fr;gap:14px;}
  .cta-form .form-field.full{grid-column:1 / -1;}
  .cta-form .form-btn{grid-column:1 / -1;}
}

/* ---------- 页脚 ---------- */
.site-footer{background:#082C41;color:#C6D9E4;padding:48px 0 0;}
.footer-grid{display:grid;gap:30px;grid-template-columns:1fr;}
.footer-brand .logo-text{color:#fff;font-size:18px;}
.footer-brand p{margin-top:14px;font-size:14px;line-height:1.85;color:#9CB9CA;max-width:340px;}
.footer-contact-list{margin-top:16px;display:grid;gap:8px;font-size:14px;color:#9CB9CA;}
.footer-contact-list li{display:flex;gap:8px;align-items:flex-start;}
.footer-contact-list svg{flex:none;margin-top:4px;color:#4FA8C3;}
.footer-col h3{font-size:14.5px;font-weight:800;color:#fff;letter-spacing:.02em;margin-bottom:14px;}
.footer-col ul{display:grid;gap:10px;}
.footer-col a{font-size:14px;color:#A9C3D1;transition:color .18s ease;}
.footer-col a:hover{color:var(--accent);}
.footer-bottom{
  margin-top:36px;border-top:1px solid rgba(255,255,255,.1);
  padding:20px 0;display:flex;flex-wrap:wrap;gap:10px 20px;
  align-items:center;justify-content:space-between;
  font-size:13px;color:#89A8B9;
}
.footer-bottom a{color:#A9C3D1;}
.footer-bottom a:hover{color:var(--accent);}
@media (min-width:640px){.footer-grid{grid-template-columns:1fr 1fr;}}
@media (min-width:1024px){.footer-grid{grid-template-columns:1.6fr 1fr 1fr 1.3fr;gap:36px;}}

/* ---------- 移动端抽屉 ---------- */
.drawer-mask{
  position:fixed;inset:0;background:rgba(8,44,65,.5);
  opacity:0;visibility:hidden;transition:opacity .2s ease,visibility .2s ease;z-index:80;
}
.drawer-mask.open{opacity:1;visibility:visible;}
.drawer{
  position:fixed;top:0;right:0;bottom:0;width:min(88vw,360px);z-index:90;
  background:#fff;padding:20px;display:flex;flex-direction:column;gap:18px;
  transform:translateX(100%);transition:transform .26s ease;
  box-shadow:-10px 0 40px rgba(11,59,87,.22);
}
.drawer.open{transform:translateX(0);}
.drawer-head{display:flex;align-items:center;justify-content:space-between;}
.drawer-close{
  width:38px;height:38px;border-radius:10px;border:1px solid var(--border);
  display:inline-flex;align-items:center;justify-content:center;color:var(--brand-900);background:#fff;
}
.drawer-search{display:flex;align-items:center;gap:8px;border:1px solid var(--border);border-radius:12px;padding:0 12px;height:44px;background:#F6FBFD;}
.drawer-search input{border:0;background:transparent;outline:none;width:100%;font-size:14px;}
.drawer-nav{display:grid;gap:6px;}
.drawer-nav a{
  padding:12px 14px;border-radius:12px;font-size:15.5px;font-weight:600;color:#254A60;
  background:#F7FBFD;border:1px solid #E7F1F7;
}
.drawer-nav a.active{background:#EAF5FA;color:var(--brand-900);border-color:#C7DEEC;}
.drawer-foot{margin-top:auto;display:grid;gap:10px;}

/* ---------- 移动端固定转化条 ---------- */
.mobile-bar{
  position:fixed;left:0;right:0;bottom:0;z-index:70;
  height:64px;display:flex;align-items:center;justify-content:space-between;gap:12px;
  padding:0 16px calc(0px + env(safe-area-inset-bottom,0px)) 16px;
  background:#fff;box-shadow:0 -6px 22px rgba(11,59,87,.12);
  padding-bottom:env(safe-area-inset-bottom,0px);
}
.mobile-bar span{font-size:14px;font-weight:700;color:var(--brand-900);}
@media (min-width:1024px){.mobile-bar{display:none;}}
@media (max-width:1023px){body{padding-bottom:88px;}}

@media (prefers-reduced-motion:reduce){
  *{transition:none !important;animation:none !important;scroll-behavior:auto !important;}
}

/* roulang page: article */
:root{
  --brand-900:#0B3B57;
  --brand-700:#0E6A8A;
  --brand-500:#2E9BB5;
  --accent:#F97316;
  --accent-hover:#EA580C;
  --bg:#F5F9FC;
  --surface:#FFFFFF;
  --text:#102A3A;
  --muted:#5B7280;
  --border:#DCE8F0;
  --success:#1F9D74;
  --radius-card:18px;
  --radius-btn:12px;
  --radius-img:16px;
  --shadow-card:0 10px 30px rgba(11,59,87,.08);
  --shadow-hover:0 16px 36px rgba(11,59,87,.12);
  --shadow-nav:0 6px 24px rgba(11,59,87,.08);
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{
  margin:0;
  font-family:"Noto Sans SC","PingFang SC","Microsoft YaHei",system-ui,-apple-system,sans-serif;
  font-size:16px;
  line-height:1.75;
  color:var(--text);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border-style:none}
a{color:var(--brand-700);text-decoration:none;transition:color .18s ease}
a:hover{color:var(--accent)}
button,input,textarea,select{font:inherit;color:inherit}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4,p{margin:0}
:focus-visible{outline:2px solid var(--accent);outline-offset:2px;border-radius:6px}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 20px}
@media (min-width:768px){.container{padding:0 32px}}

/* ---------- Header ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(255,255,255,.97);
  border-bottom:1px solid var(--border);
  transition:box-shadow .2s ease,background .2s ease;
}
.site-header.is-scrolled{box-shadow:var(--shadow-nav)}
.header-inner{display:flex;align-items:center;gap:18px;height:72px}
.logo{display:flex;align-items:center;gap:10px;color:var(--brand-900);flex-shrink:0}
.logo:hover{color:var(--brand-900)}
.logo-mark{
  width:32px;height:32px;border-radius:10px;
  background:linear-gradient(135deg,var(--brand-700),var(--brand-500));
  display:flex;align-items:center;justify-content:center;color:#fff;flex-shrink:0;
}
.logo-text{font-size:19px;font-weight:800;letter-spacing:-.01em;white-space:nowrap}
.logo-dot{color:var(--accent)}
.main-nav{display:flex;align-items:center;gap:4px;margin-left:6px}
.nav-link{
  position:relative;display:inline-block;
  padding:8px 12px;border-radius:8px;
  font-size:15px;font-weight:500;color:#2B4557;
  transition:color .18s ease,background .18s ease;
}
.nav-link:hover{color:var(--brand-700);background:#F1F7FB}
.nav-link.active{color:var(--brand-900);font-weight:700}
.nav-link.active::after{
  content:"";position:absolute;left:12px;right:12px;bottom:-2px;
  height:2px;border-radius:2px;background:var(--accent);
}
.header-actions{display:flex;align-items:center;gap:10px;margin-left:auto}
.search-box{
  display:flex;align-items:center;gap:8px;
  width:236px;height:40px;padding:0 12px;
  background:#F7FBFD;border:1px solid var(--border);border-radius:12px;
  color:var(--muted);transition:border-color .18s ease,box-shadow .18s ease,background .18s ease;
}
.search-box:focus-within{background:#fff;border-color:var(--accent);box-shadow:0 0 0 3px rgba(249,115,22,.16)}
.search-box input{
  width:100%;border:0;background:transparent;outline:none;
  font-size:14px;color:var(--text);
}
.search-box input::placeholder{color:#93A5B1}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:44px;padding:0 20px;border-radius:var(--radius-btn);
  font-size:15px;font-weight:600;border:1px solid transparent;
  cursor:pointer;text-decoration:none;white-space:nowrap;
  transition:background .18s ease,color .18s ease,border-color .18s ease,transform .18s ease,box-shadow .18s ease;
}
.btn:active{transform:scale(.98)}
.btn-primary{background:var(--accent);color:#fff;box-shadow:0 8px 20px rgba(249,115,22,.24)}
.btn-primary:hover{background:var(--accent-hover);color:#fff;transform:translateY(-1px);box-shadow:0 12px 26px rgba(249,115,22,.28)}
.btn-outline{background:#fff;color:var(--brand-900);border-color:#C9DCE9}
.btn-outline:hover{background:#EDF6FB;color:var(--brand-900);border-color:var(--brand-500);transform:translateY(-1px)}
.btn-ghost{background:transparent;color:var(--brand-900);padding:0 14px}
.btn-ghost:hover{background:#EFF6FA;color:var(--brand-700)}
.btn-sm{min-height:38px;padding:0 16px;font-size:14px}
.hamburger{
  display:none;align-items:center;justify-content:center;
  width:42px;height:42px;border-radius:12px;border:1px solid var(--border);
  background:#fff;color:var(--brand-900);cursor:pointer;
}
.hamburger:hover{background:#F1F7FB}

/* ---------- Mobile drawer ---------- */
.drawer{
  position:fixed;inset:0;z-index:80;display:none;
}
.drawer.open{display:block}
.drawer-mask{position:absolute;inset:0;background:rgba(11,59,87,.42)}
.drawer-panel{
  position:absolute;top:0;right:0;bottom:0;width:min(88vw,360px);
  background:#fff;padding:20px;display:flex;flex-direction:column;gap:18px;
  box-shadow:-16px 0 40px rgba(11,59,87,.18);overflow-y:auto;
}
.drawer-head{display:flex;align-items:center;justify-content:space-between;gap:12px}
.drawer-close{
  width:38px;height:38px;border-radius:10px;border:1px solid var(--border);
  background:#fff;cursor:pointer;color:var(--brand-900);
}
.drawer-nav{display:flex;flex-direction:column;gap:4px}
.drawer-nav a{padding:12px 12px;border-radius:10px;color:#2B4557;font-size:16px;font-weight:500}
.drawer-nav a:hover,.drawer-nav a.active{background:#EEF6FB;color:var(--brand-900);font-weight:700}
.drawer-foot{margin-top:auto;display:flex;flex-direction:column;gap:10px}

/* ---------- Breadcrumb ---------- */
.breadcrumb{
  display:flex;flex-wrap:wrap;align-items:center;gap:8px;
  padding:22px 0 6px;font-size:13px;color:#7C8F9C;
}
.breadcrumb a{color:#7C8F9C}
.breadcrumb a:hover{color:var(--accent)}
.breadcrumb .sep{color:#B6C7D3}

/* ---------- Article header ---------- */
.article-head{padding:14px 0 32px;border-bottom:1px solid var(--border)}
.badge{
  display:inline-flex;align-items:center;gap:6px;
  padding:5px 12px;border-radius:999px;
  font-size:12.5px;font-weight:600;letter-spacing:.01em;
  background:#E8F3F9;color:var(--brand-700);
}
.badge-accent{background:#FFF1E6;color:#C2410C}
.article-title{
  margin:16px 0 0;
  font-size:clamp(2rem,3.4vw,3rem);
  line-height:1.2;font-weight:800;letter-spacing:-.01em;color:var(--brand-900);
}
.article-lead{
  margin-top:16px;max-width:820px;
  font-size:17px;line-height:1.85;color:var(--muted);
  display:-webkit-box;-webkit-line-clamp:4;-webkit-box-orient:vertical;overflow:hidden;
}
.article-meta{
  margin-top:22px;display:flex;flex-wrap:wrap;align-items:center;gap:10px 22px;
  font-size:13.5px;color:var(--muted);
}
.article-meta span{display:inline-flex;align-items:center;gap:6px}
.article-meta svg{color:var(--brand-500)}
.meta-divider{width:1px;height:14px;background:var(--border)}

.article-cover{margin:28px 0 0}
.article-cover img{
  width:100%;aspect-ratio:16/8;object-fit:cover;
  border-radius:var(--radius-img);box-shadow:var(--shadow-card);
}
.article-cover figcaption{margin-top:10px;font-size:13px;color:#8496A3;text-align:center}

/* ---------- Layout ---------- */
.article-shell{padding:40px 0 72px}
.article-layout{
  display:grid;grid-template-columns:minmax(0,1fr) 320px;
  gap:44px;align-items:start;
}
.article-main{
  background:var(--surface);border:1px solid var(--border);
  border-radius:var(--radius-card);box-shadow:var(--shadow-card);
  padding:32px 34px 36px;
}

/* ---------- Article body typography ---------- */
.article-body{font-size:17px;line-height:1.9;color:#1B3546;max-width:760px}
.article-body>*+*{margin-top:1.25em}
.article-body p{margin:0}
.article-body h2{
  position:relative;
  margin:2em 0 .7em;padding-left:16px;
  font-size:clamp(1.35rem,2.2vw,1.7rem);line-height:1.35;font-weight:800;color:var(--brand-900);
}
.article-body h2::before{
  content:"";position:absolute;left:0;top:.18em;bottom:.18em;width:4px;
  border-radius:4px;background:var(--accent);
}
.article-body h3{
  margin:1.8em 0 .6em;font-size:1.22rem;font-weight:700;line-height:1.4;color:var(--brand-900);
}
.article-body h4{margin:1.5em 0 .5em;font-size:1.05rem;font-weight:700;color:var(--brand-700)}
.article-body ul,.article-body ol{margin:1.1em 0;padding-left:0}
.article-body ul li{position:relative;padding-left:22px;margin:.45em 0;line-height:1.85}
.article-body ul li::before{
  content:"";position:absolute;left:4px;top:.72em;
  width:7px;height:7px;border-radius:50%;background:var(--brand-500);
}
.article-body ol{counter-reset:li}
.article-body ol li{position:relative;padding-left:30px;margin:.45em 0;line-height:1.85;counter-increment:li}
.article-body ol li::before{
  content:counter(li);position:absolute;left:0;top:.28em;
  width:21px;height:21px;border-radius:50%;
  background:#E8F3F9;color:var(--brand-700);
  font-size:12.5px;font-weight:700;line-height:21px;text-align:center;
}
.article-body blockquote{
  margin:1.6em 0;padding:18px 22px;
  background:#F1F8FC;border-left:4px solid var(--accent);border-radius:12px;
  color:#274A5F;font-size:16.5px;line-height:1.85;
}
.article-body blockquote p{margin:0}
.article-body img{border-radius:var(--radius-img);margin:1.6em 0;box-shadow:var(--shadow-card)}
.article-body figure{margin:1.6em 0}
.article-body figcaption{margin-top:10px;font-size:13px;color:#8496A3;text-align:center}
.article-body a{color:var(--brand-700);text-decoration:underline;text-underline-offset:3px}
.article-body a:hover{color:var(--accent)}
.article-body strong{font-weight:700;color:#0D3049}
.article-body table{
  width:100%;border-collapse:collapse;margin:1.6em 0;
  font-size:15.5px;border:1px solid var(--border);border-radius:12px;overflow:hidden;
}
.article-body thead th{background:#EAF4FA;color:var(--brand-900);font-weight:700;text-align:left}
.article-body th,.article-body td{padding:12px 14px;border-bottom:1px solid var(--border)}
.article-body tbody tr:nth-child(even){background:#F7FBFD}
.article-body hr{border:0;border-top:1px solid var(--border);margin:2em 0}

.empty-state{
  padding:56px 20px;text-align:center;color:var(--muted);
  border:1px dashed var(--border);border-radius:var(--radius-img);background:#F9FCFE;
}
.empty-state svg{color:var(--brand-500);margin:0 auto 14px}
.empty-state h2{font-size:20px;font-weight:700;color:var(--brand-900);margin-bottom:8px}
.empty-state p{font-size:15px;margin-bottom:20px}

/* ---------- Tags + share ---------- */
.article-tail{margin-top:36px;padding-top:26px;border-top:1px solid var(--border)}
.tag-row{display:flex;flex-wrap:wrap;align-items:center;gap:10px}
.tag-label{font-size:13px;font-weight:600;color:var(--muted);margin-right:2px}
.tag{
  display:inline-flex;align-items:center;padding:6px 13px;border-radius:999px;
  font-size:13px;color:#3A5D73;background:#F2F8FB;border:1px solid var(--border);
  transition:color .18s ease,background .18s ease,border-color .18s ease;
}
.tag:hover{color:#fff;background:var(--brand-700);border-color:var(--brand-700)}

/* ---------- Sidebar ---------- */
.sidebar{position:sticky;top:96px;display:flex;flex-direction:column;gap:22px}
.side-card{
  background:var(--surface);border:1px solid var(--border);
  border-radius:var(--radius-card);box-shadow:var(--shadow-card);
  padding:22px 22px 24px;
}
.side-title{
  display:flex;align-items:center;gap:8px;
  font-size:15px;font-weight:800;color:var(--brand-900);margin-bottom:14px;
}
.side-title::before{
  content:"";width:4px;height:16px;border-radius:3px;background:var(--accent);
}
.toc-list{display:flex;flex-direction:column;gap:2px}
.toc-link{
  display:block;padding:8px 10px;border-radius:8px;
  font-size:14px;color:#3A5D73;line-height:1.55;
  border-left:2px solid transparent;
}
.toc-link:hover{background:#F1F8FC;color:var(--brand-900);border-left-color:var(--accent)}
.toc-hint{font-size:13.5px;color:#8496A3;line-height:1.7}
.side-post{display:flex;gap:12px;padding:11px 0;border-top:1px dashed var(--border)}
.side-post:first-of-type{border-top:0;padding-top:0}
.side-post img{
  width:64px;height:56px;border-radius:10px;object-fit:cover;flex-shrink:0;background:#E8F3F9;
}
.side-post h4{font-size:14px;font-weight:600;line-height:1.5;color:#1B3546;margin:0}
.side-post a:hover h4{color:var(--accent)}
.side-post time{display:block;margin-top:5px;font-size:12px;color:#93A5B1}
.side-contact{background:linear-gradient(160deg,#0B3B57,#0E6A8A);border:0;color:#D6E7F0}
.side-contact .side-title{color:#fff}
.side-contact .side-title::before{background:var(--accent)}
.side-contact p{font-size:14px;line-height:1.8;color:#BBD6E4;margin-bottom:16px}
.side-contact .btn{width:100%}
.side-contact .btn-outline{border-color:rgba(255,255,255,.5);color:#fff;background:transparent}
.side-contact .btn-outline:hover{background:rgba(255,255,255,.12);color:#fff;border-color:#fff}

/* ---------- Related ---------- */
.related{padding:8px 0 0}
.related-head{display:flex;align-items:flex-end;justify-content:space-between;gap:16px;margin-bottom:22px}
.section-eyebrow{
  display:inline-block;font-size:12.5px;font-weight:700;letter-spacing:.08em;
  text-transform:uppercase;color:var(--brand-500);margin-bottom:8px;
}
.related-head h2{font-size:clamp(1.4rem,2.4vw,1.85rem);font-weight:800;color:var(--brand-900);line-height:1.3}
.text-link{
  display:inline-flex;align-items:center;gap:6px;
  font-size:14.5px;font-weight:600;color:var(--brand-700);
}
.text-link:hover{color:var(--accent);text-decoration:underline;text-underline-offset:3px}
.related-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px}
.post-card{
  display:flex;flex-direction:column;background:var(--surface);
  border:1px solid var(--border);border-radius:var(--radius-card);
  box-shadow:var(--shadow-card);overflow:hidden;
  transition:transform .18s ease,box-shadow .18s ease,border-color .18s ease;
}
.post-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover);border-color:#C9DCE9}
.post-card img{width:100%;aspect-ratio:16/10;object-fit:cover;background:#E8F3F9}
.post-card-body{padding:20px 20px 22px;display:flex;flex-direction:column;gap:10px;flex:1}
.post-card h3{font-size:18px;font-weight:700;line-height:1.45;color:var(--brand-900)}
.post-card p{font-size:14.5px;line-height:1.75;color:var(--muted)}
.post-card-foot{margin-top:auto;display:flex;align-items:center;justify-content:space-between;gap:10px;padding-top:6px;font-size:13px;color:#8B9DA9}
.back-row{margin-top:34px;display:flex;justify-content:center}

/* ---------- CTA strip ---------- */
.cta-strip{
  background:#0B3B57;border-radius:24px;padding:34px 36px;
  display:flex;align-items:center;justify-content:space-between;gap:26px;flex-wrap:wrap;
  box-shadow:0 18px 40px rgba(11,59,87,.18);
}
.cta-strip h2{font-size:clamp(1.3rem,2.2vw,1.6rem);font-weight:800;color:#fff;line-height:1.35}
.cta-strip p{margin-top:8px;font-size:14.5px;color:#B9D4E2;line-height:1.8;max-width:560px}
.cta-actions{display:flex;gap:12px;flex-wrap:wrap}
.cta-strip .btn-outline{background:transparent;color:#fff;border-color:rgba(255,255,255,.55)}
.cta-strip .btn-outline:hover{background:rgba(255,255,255,.12);color:#fff;border-color:#fff}

/* ---------- Footer ---------- */
.site-footer{background:#0A2C42;color:#C9DCE9;margin-top:72px;padding:60px 0 26px}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:36px}
.footer-brand .logo-text{color:#fff;font-size:19px}
.footer-brand p{margin-top:14px;font-size:14px;line-height:1.85;color:#9FBECF;max-width:330px}
.footer-contact-list{margin-top:18px;display:flex;flex-direction:column;gap:10px}
.footer-contact-list li{display:flex;align-items:center;gap:9px;font-size:13.5px;color:#A9C6D6}
.footer-contact-list svg{color:var(--brand-500);flex-shrink:0}
.footer-col h3{font-size:15px;font-weight:700;color:#fff;margin-bottom:16px}
.footer-col ul{display:flex;flex-direction:column;gap:10px}
.footer-col a,.footer-col span{font-size:14px;color:#A9C6D6;line-height:1.7}
.footer-col a:hover{color:var(--accent)}
.footer-bottom{
  margin-top:42px;padding-top:22px;border-top:1px solid rgba(255,255,255,.12);
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:10px;
  font-size:13px;color:#8FB0C3;
}

/* ---------- Mobile fixed bar ---------- */
.mobile-bar{
  display:none;position:fixed;left:0;right:0;bottom:0;z-index:70;
  height:64px;padding:0 16px calc(0px + env(safe-area-inset-bottom));
  background:#fff;border-top:1px solid var(--border);
  box-shadow:0 -6px 20px rgba(11,59,87,.1);
  align-items:center;justify-content:space-between;gap:14px;
}
.mobile-bar span{font-size:14px;font-weight:600;color:var(--brand-900)}
.mobile-bar .btn{min-height:44px;flex-shrink:0}

/* ---------- Responsive ---------- */
@media (max-width:1023px){
  .main-nav,.search-box,.header-actions .btn-ghost{display:none}
  .hamburger{display:inline-flex}
  .article-layout{grid-template-columns:minmax(0,1fr);gap:34px}
  .sidebar{position:static;top:auto}
  .sidebar .side-card:first-child{display:none}
  .article-main{padding:26px 22px 30px}
  .related-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .footer-grid{grid-template-columns:1fr 1fr;gap:30px}
  .mobile-bar{display:flex}
  body{padding-bottom:76px}
  .site-footer{margin-top:56px}
}
@media (max-width:767px){
  .header-inner{height:64px;gap:12px}
  .logo-text{font-size:16.5px}
  .article-head{padding:10px 0 24px}
  .article-lead{font-size:15.5px;-webkit-line-clamp:5}
  .article-body{font-size:16px;line-height:1.85}
  .article-cover img{aspect-ratio:16/10}
  .article-shell{padding:30px 0 56px}
  .related-grid{grid-template-columns:minmax(0,1fr)}
  .cta-strip{padding:26px 22px;border-radius:20px}
  .cta-actions{width:100%}
  .cta-actions .btn{flex:1 1 auto}
}
@media (max-width:520px){
  .container{padding:0 16px}
  .article-main{padding:22px 16px 26px;border-radius:14px}
  .article-title{font-size:1.68rem}
  .article-meta{font-size:12.5px;gap:8px 14px}
  .meta-divider{display:none}
  .footer-grid{grid-template-columns:minmax(0,1fr)}
  .footer-bottom{flex-direction:column;align-items:flex-start}
  .back-row .btn{width:100%}
}
@media (prefers-reduced-motion:reduce){
  *{transition:none!important;animation:none!important;scroll-behavior:auto!important}
}

/* roulang page: category1 */
:root{
  --brand-900:#0B3B57;
  --brand-800:#0F4A67;
  --brand-700:#0E6A8A;
  --brand-500:#2E9BB5;
  --brand-200:#CFE6EF;
  --brand-100:#E6F2F7;
  --accent:#F97316;
  --accent-hover:#EA580C;
  --accent-soft:#FFF1E6;
  --bg:#F5F9FC;
  --surface:#FFFFFF;
  --text:#102A3A;
  --muted:#5B7280;
  --border:#DCE8F0;
  --success:#1F9D74;
  --radius-card:18px;
  --radius-btn:12px;
  --radius-img:16px;
  --shadow-card:0 10px 30px rgba(11,59,87,.08);
  --shadow-card-hover:0 16px 36px rgba(11,59,87,.12);
  --shadow-nav:0 6px 24px rgba(11,59,87,.08);
  --ease:cubic-bezier(.4,0,.2,1);
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
.page-body{
  margin:0;
  font-family:"Noto Sans SC","PingFang SC","Microsoft YaHei",system-ui,-apple-system,sans-serif;
  font-size:16px;
  line-height:1.7;
  color:var(--text);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
.page-body img{display:block;max-width:100%;}
.page-body a{color:inherit;text-decoration:none;}
.page-body button{font-family:inherit;}
.page-body ul,.page-body ol{list-style:none;margin:0;padding:0;}
.page-body p{margin:0;}
.page-body h1,.page-body h2,.page-body h3,.page-body h4{margin:0;letter-spacing:-.01em;}
.page-body.drawer-open{overflow:hidden;}
:focus-visible{outline:2px solid var(--accent);outline-offset:2px;border-radius:6px;}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 20px;}
@media (min-width:768px){.container{padding:0 32px;}}

/* ============ Header ============ */
.site-header{position:sticky;top:0;z-index:60;background:rgba(255,255,255,.96);border-bottom:1px solid var(--border);transition:box-shadow .2s var(--ease);}
.site-header.is-scrolled{box-shadow:var(--shadow-nav);}
.header-inner{display:flex;align-items:center;gap:18px;height:72px;}
.brand{display:flex;align-items:center;gap:10px;flex-shrink:0;}
.brand-icon{display:inline-flex;color:var(--brand-700);}
.brand-text{font-size:18px;font-weight:800;color:var(--brand-900);letter-spacing:-.01em;white-space:nowrap;}
.brand-dot{color:var(--accent);}
.main-nav{display:none;}
.nav-link{position:relative;padding:10px 13px;border-radius:10px;font-size:15px;font-weight:600;color:var(--brand-900);transition:color .18s var(--ease),background .18s var(--ease);}
.nav-link:hover{color:var(--brand-700);background:var(--brand-100);}
.nav-link.active::after{content:"";position:absolute;left:13px;right:13px;bottom:3px;height:2px;border-radius:2px;background:var(--accent);}
.header-tools{margin-left:auto;display:flex;align-items:center;gap:10px;}
.search-box{display:none;}
.search-box svg{flex:0 0 auto;color:var(--muted);}
.search-box input{width:100%;border:0;background:transparent;outline:none;font-size:14px;color:var(--text);}
.search-box input::placeholder{color:#93A7B4;}
.login-link{display:none;font-size:15px;font-weight:600;color:var(--brand-900);padding:8px 10px;border-radius:10px;transition:color .18s var(--ease),background .18s var(--ease);}
.login-link:hover{color:var(--accent-hover);background:var(--accent-soft);}
.nav-toggle{display:inline-flex;align-items:center;justify-content:center;width:42px;height:42px;border-radius:12px;border:1px solid var(--border);background:#fff;color:var(--brand-900);cursor:pointer;transition:background .18s var(--ease),border-color .18s var(--ease);}
.nav-toggle:hover{background:var(--brand-100);border-color:var(--brand-200);}

/* Buttons */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;height:48px;padding:0 22px;border-radius:var(--radius-btn);font-size:15px;font-weight:700;border:1px solid transparent;cursor:pointer;white-space:nowrap;transition:transform .15s var(--ease),background .18s var(--ease),box-shadow .18s var(--ease),color .18s var(--ease),border-color .18s var(--ease);}
.btn-primary{background:var(--accent);color:#fff;box-shadow:0 8px 20px rgba(249,115,22,.24);}
.btn-primary:hover{background:var(--accent-hover);transform:translateY(-1px);box-shadow:0 12px 24px rgba(249,115,22,.28);}
.btn-primary:active{transform:scale(.98);}
.btn-ghost{background:#fff;color:var(--brand-900);border-color:var(--brand-700);}
.btn-ghost:hover{background:var(--brand-100);transform:translateY(-1px);}
.btn-ghost:active{transform:scale(.98);}
.btn-sm{height:40px;padding:0 16px;font-size:14px;border-radius:10px;}
.btn-light{background:#fff;color:var(--brand-900);border-color:rgba(255,255,255,.6);}
.btn-light:hover{background:#E9F3F8;transform:translateY(-1px);}

/* Mobile drawer */
.mobile-drawer{display:none;border-top:1px solid var(--border);background:#fff;padding:16px 20px 24px;box-shadow:var(--shadow-nav);max-height:calc(100vh - 72px);overflow-y:auto;}
.mobile-drawer.is-open{display:block;}
.drawer-search{display:flex;align-items:center;gap:8px;height:44px;padding:0 14px;border:1px solid var(--border);border-radius:12px;background:#F8FBFD;color:var(--muted);}
.drawer-search input{width:100%;border:0;background:transparent;outline:none;font-size:14px;color:var(--text);}
.drawer-nav{margin-top:16px;display:grid;gap:4px;}
.drawer-nav a{padding:13px 12px;border-radius:10px;font-size:16px;font-weight:600;color:var(--brand-900);}
.drawer-nav a:hover{background:var(--brand-100);}
.drawer-nav a.active{background:var(--brand-100);color:var(--brand-700);}
.drawer-actions{margin-top:18px;display:grid;gap:10px;}
@media (min-width:768px){.login-link{display:inline-flex;}}
@media (min-width:1024px){.main-nav{display:flex;align-items:center;gap:2px;margin-left:6px;}.nav-toggle{display:none;}.mobile-drawer{display:none!important;}}
@media (min-width:1180px){.search-box{display:flex;align-items:center;gap:8px;width:240px;height:40px;padding:0 14px;border:1px solid var(--border);border-radius:12px;background:#F8FBFD;transition:border-color .18s var(--ease),box-shadow .18s var(--ease);}.search-box:focus-within{border-color:var(--accent);box-shadow:0 0 0 3px rgba(249,115,22,.16);}}

/* ============ Hero ============ */
.cat-hero{position:relative;overflow:hidden;padding:40px 0 52px;background:linear-gradient(180deg,#EDF6FA 0%,#F5F9FC 100%);border-bottom:1px solid var(--border);}
.cat-hero::before{content:"";position:absolute;inset:0;pointer-events:none;background-image:repeating-linear-gradient(115deg,rgba(14,106,138,.05) 0 2px,transparent 2px 16px);}
.cat-hero-grid{position:relative;display:grid;grid-template-columns:1fr;gap:34px;align-items:center;}
.eyebrow{display:inline-flex;align-items:center;gap:8px;height:32px;padding:0 14px;border-radius:999px;background:#fff;border:1px solid var(--brand-200);color:var(--brand-700);font-size:13px;font-weight:700;}
.eyebrow-dot{width:6px;height:6px;border-radius:50%;background:var(--accent);}
.cat-hero h1{font-size:clamp(1.85rem,3.6vw,2.85rem);line-height:1.18;font-weight:800;color:var(--brand-900);margin:16px 0 18px;}
.h1-line{display:block;}
.h1-accent{color:var(--brand-700);}
.lead{font-size:16.5px;line-height:1.85;color:var(--muted);max-width:620px;}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:26px;}
.hero-points{display:flex;flex-wrap:wrap;gap:10px 22px;margin-top:24px;}
.hero-points li{display:flex;align-items:center;gap:8px;font-size:14px;font-weight:500;color:var(--brand-800);}
.hero-points svg{flex:0 0 auto;color:var(--success);}
.cat-hero-media{position:relative;}
.hero-figure{border-radius:24px;overflow:hidden;background:var(--brand-100);aspect-ratio:4/3;box-shadow:var(--shadow-card);}
.hero-figure img{width:100%;height:100%;object-fit:cover;}
.media-tag{position:absolute;top:16px;left:16px;display:inline-flex;align-items:center;height:32px;padding:0 14px;border-radius:999px;background:var(--accent);color:#fff;font-size:13px;font-weight:700;box-shadow:0 8px 18px rgba(249,115,22,.3);}
.media-card{position:absolute;right:12px;bottom:-16px;background:#fff;border:1px solid var(--border);border-radius:16px;padding:14px 18px;box-shadow:var(--shadow-card);min-width:200px;}
.media-card-label{font-size:12px;font-weight:700;color:var(--brand-500);letter-spacing:.04em;}
.media-card-value{font-size:14.5px;font-weight:700;color:var(--brand-900);margin-top:4px;line-height:1.5;}
.hero-stats{position:relative;margin-top:44px;display:grid;grid-template-columns:repeat(2,1fr);gap:16px 20px;padding:20px 22px;background:#fff;border:1px solid var(--border);border-radius:16px;box-shadow:var(--shadow-card);}
.stat-label{font-size:12px;font-weight:600;color:var(--muted);letter-spacing:.02em;}
.stat-value{font-size:14.5px;font-weight:700;color:var(--brand-900);margin-top:5px;line-height:1.5;}
@media (min-width:900px){.hero-stats{grid-template-columns:repeat(4,1fr);gap:20px 28px;padding:22px 26px;}}
@media (min-width:1024px){.cat-hero{padding:56px 0 64px;}.cat-hero-grid{grid-template-columns:7fr 5fr;gap:52px;}.lead{font-size:17px;}}

/* ============ Section base ============ */
.section{padding:56px 0;}
.section-tight{padding:48px 0;}
.section-white{background:#fff;border-top:1px solid var(--border);border-bottom:1px solid var(--border);}
.section-head{display:flex;flex-wrap:wrap;align-items:flex-end;justify-content:space-between;gap:16px;margin-bottom:26px;}
.sec-title{font-size:clamp(1.5rem,2.4vw,2rem);font-weight:800;color:var(--brand-900);line-height:1.3;}
.sec-desc{font-size:15px;line-height:1.85;color:var(--muted);margin-top:12px;max-width:660px;}
@media (min-width:768px){.section{padding:80px 0;}.section-tight{padding:60px 0;}.section-head{margin-bottom:32px;}}

/* Filter chips */
.filter-bar{display:flex;flex-wrap:wrap;align-items:center;gap:10px;margin-bottom:28px;}
.filter-label{font-size:13px;font-weight:700;color:var(--muted);margin-right:2px;}
.chip{display:inline-flex;align-items:center;height:36px;padding:0 16px;border-radius:999px;border:1px solid var(--border);background:#fff;font-size:14px;font-weight:600;color:var(--brand-900);transition:background .18s var(--ease),border-color .18s var(--ease),color .18s var(--ease);}
.chip:hover{border-color:var(--brand-200);background:var(--brand-100);}
.chip.is-active{background:var(--brand-900);border-color:var(--brand-900);color:#fff;}

/* ============ Service cards ============ */
.svc-grid{display:grid;grid-template-columns:1fr;gap:24px;}
.svc-card{background:#fff;border:1px solid var(--border);border-radius:var(--radius-card);box-shadow:var(--shadow-card);overflow:hidden;transition:transform .2s var(--ease),box-shadow .2s var(--ease);}
.svc-card:hover,.svc-card:focus-within{transform:translateY(-4px);box-shadow:var(--shadow-card-hover);}
.svc-link{display:flex;flex-direction:column;height:100%;}
.svc-thumb{position:relative;aspect-ratio:16/10;background:var(--brand-100);overflow:hidden;}
.svc-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .4s var(--ease);}
.svc-card:hover .svc-thumb img{transform:scale(1.04);}
.badge{position:absolute;top:12px;left:12px;display:inline-flex;align-items:center;height:26px;padding:0 11px;border-radius:999px;background:rgba(255,255,255,.95);border:1px solid var(--border);color:var(--brand-900);font-size:12px;font-weight:700;}
.badge-accent{background:var(--accent-soft);border-color:#FBD9BE;color:#B45309;}
.svc-body{display:flex;flex-direction:column;gap:10px;padding:20px 22px 22px;flex:1;}
.svc-body h3{font-size:18px;font-weight:700;line-height:1.45;color:var(--brand-900);}
.svc-body p{font-size:14.5px;line-height:1.8;color:var(--muted);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.text-link{margin-top:auto;display:inline-flex;align-items:center;gap:6px;font-size:14px;font-weight:700;color:var(--brand-700);transition:color .18s var(--ease),gap .18s var(--ease);}
.svc-card:hover .text-link{color:var(--accent-hover);gap:10px;}
.svc-card.is-feature .svc-thumb{aspect-ratio:16/9;}
.svc-card.is-feature .svc-body h3{font-size:21px;}
.svc-card.is-feature .svc-body p{-webkit-line-clamp:3;font-size:15px;}
.svc-card.is-wide .svc-link{flex-direction:column;}
@media (min-width:768px){
  .svc-grid{grid-template-columns:repeat(2,1fr);gap:24px;}
  .svc-card.is-feature,.svc-card.is-wide{grid-column:span 2;}
  .svc-card.is-wide .svc-link{flex-direction:row;align-items:stretch;}
  .svc-card.is-wide .svc-thumb{flex:0 0 40%;aspect-ratio:auto;}
  .svc-card.is-wide .svc-body{justify-content:center;padding:26px 28px;}
  .svc-card.is-wide .svc-body h3{font-size:20px;}
  .svc-card.is-wide .svc-body p{-webkit-line-clamp:3;font-size:15px;}
}
@media (min-width:1024px){
  .svc-grid{grid-template-columns:repeat(3,1fr);gap:26px;}
  .svc-card.is-feature{grid-column:span 2;}
  .svc-card.is-wide{grid-column:span 3;}
}

/* ============ Flow ============ */
.flow-wrap{background:#E9F4F9;border:1px solid var(--brand-200);border-radius:24px;padding:30px 22px;}
.flow{display:grid;grid-template-columns:1fr;gap:26px;}
.flow-item{position:relative;padding-top:2px;}
.flow-num{display:inline-flex;align-items:center;justify-content:center;width:34px;height:34px;border-radius:50%;background:var(--brand-900);color:#fff;font-size:14px;font-weight:700;letter-spacing:.02em;}
.flow-item h3{font-size:18px;font-weight:700;color:var(--brand-900);margin:14px 0 8px;}
.flow-item p{font-size:14.5px;line-height:1.85;color:var(--muted);}
@media (min-width:768px){
  .flow-wrap{padding:42px 40px;}
  .flow{grid-template-columns:repeat(3,1fr);gap:32px;}
  .flow-item:not(:last-child)::after{content:"";position:absolute;top:17px;left:48px;right:-16px;height:1px;background:linear-gradient(90deg,var(--brand-500),rgba(207,230,239,.15));}
}

/* ============ Collaboration ============ */
.collab-grid{display:grid;grid-template-columns:1fr;gap:32px;align-items:start;}
.collab-list{display:grid;gap:0;border-top:1px solid var(--border);}
.collab-item{display:flex;gap:16px;padding:20px 0;border-bottom:1px solid var(--border);}
.collab-icon{flex:0 0 44px;height:44px;border-radius:12px;display:inline-flex;align-items:center;justify-content:center;background:var(--brand-100);color:var(--brand-700);}
.collab-item h3{font-size:16.5px;font-weight:700;color:var(--brand-900);margin-bottom:6px;}
.collab-item p{font-size:14.5px;line-height:1.8;color:var(--muted);}
@media (min-width:1024px){.collab-grid{grid-template-columns:5fr 7fr;gap:56px;}.collab-item{padding:22px 0;}}

/* ============ FAQ ============ */
.faq-layout{display:grid;grid-template-columns:1fr;gap:26px;align-items:start;}
.faq-aside p{font-size:15px;line-height:1.85;color:var(--muted);margin-top:12px;}
.faq-aside-link{display:inline-flex;align-items:center;gap:8px;margin-top:18px;font-size:14.5px;font-weight:700;color:var(--brand-700);transition:color .18s var(--ease);}
.faq-aside-link:hover{color:var(--accent-hover);}
.faq-item{background:#fff;border:1px solid var(--border);border-radius:14px;overflow:hidden;margin-bottom:12px;transition:background .2s var(--ease),border-color .2s var(--ease),box-shadow .2s var(--ease);}
.faq-item:hover{border-color:var(--brand-200);}
.faq-item.is-open{background:#F2F9FC;border-color:var(--brand-200);box-shadow:var(--shadow-card);}
.faq-q{width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;padding:18px 20px;background:transparent;border:0;text-align:left;cursor:pointer;font-size:16px;font-weight:600;line-height:1.5;color:var(--brand-900);}
.faq-icon{position:relative;flex:0 0 20px;width:20px;height:20px;}
.faq-icon-h,.faq-icon-v{position:absolute;background:var(--brand-700);border-radius:2px;transition:transform .22s var(--ease),opacity .22s var(--ease),background .22s var(--ease);}
.faq-icon-h{top:9px;left:2px;width:16px;height:2px;}
.faq-icon-v{top:2px;left:9px;width:2px;height:16px;}
.faq-item.is-open .faq-icon-v{transform:rotate(90deg);opacity:0;}
.faq-item.is-open .faq-icon-h{background:var(--accent);}
.faq-a{max-height:0;overflow:hidden;transition:max-height .3s var(--ease);}
.faq-item.is-open .faq-a{max-height:360px;}
.faq-a p{padding:0 20px 18px;font-size:15px;line-height:1.85;color:var(--muted);}
@media (min-width:1024px){.faq-layout{grid-template-columns:4fr 8fr;gap:52px;}.faq-q{font-size:17px;}}

/* ============ CTA ============ */
.cta-panel{position:relative;overflow:hidden;background:var(--brand-900);border-radius:24px;padding:32px 24px;color:#fff;display:grid;gap:22px;}
.cta-panel::before{content:"";position:absolute;inset:0;pointer-events:none;background-image:repeating-linear-gradient(115deg,rgba(255,255,255,.04) 0 2px,transparent 2px 18px);}
.cta-copy{position:relative;}
.cta-copy h2{font-size:clamp(1.35rem,2.4vw,1.85rem);font-weight:800;line-height:1.35;color:#fff;}
.cta-copy p{font-size:14.5px;line-height:1.85;color:#B6D1DE;margin-top:12px;max-width:560px;}
.cta-actions{position:relative;display:flex;flex-wrap:wrap;gap:12px;}
@media (min-width:1024px){.cta-panel{grid-template-columns:1fr auto;align-items:center;padding:40px 44px;}.cta-actions{justify-content:flex-end;}}

/* ============ Footer ============ */
.site-footer{background:#0A2C41;color:#C7DBE6;padding:52px 0 22px;}
.footer-grid{display:grid;grid-template-columns:1fr;gap:30px;}
.footer-brand .logo-text{font-size:19px;font-weight:800;color:#fff;letter-spacing:-.01em;}
.logo-dot{color:var(--accent);}
.footer-brand p{font-size:13.5px;line-height:1.9;color:#9FBCCB;margin:14px 0 16px;max-width:340px;}
.footer-contact-list{display:grid;gap:10px;}
.footer-contact-list li{display:flex;align-items:center;gap:8px;font-size:13.5px;color:#9FBCCB;}
.footer-contact-list svg{flex:0 0 auto;color:var(--brand-500);}
.footer-col h3{font-size:14px;font-weight:700;color:#fff;margin-bottom:14px;}
.footer-col ul{display:grid;gap:10px;}
.footer-col a,.footer-col span{font-size:13.5px;line-height:1.7;color:#9FBCCB;transition:color .18s var(--ease);}
.footer-col a:hover{color:var(--accent);}
.footer-bottom{margin-top:34px;padding-top:18px;border-top:1px solid rgba(255,255,255,.1);display:flex;flex-wrap:wrap;gap:8px 20px;justify-content:space-between;font-size:12.5px;line-height:1.7;color:#7E9CAB;}
@media (min-width:640px){.footer-grid{grid-template-columns:repeat(2,1fr);gap:32px;}}
@media (min-width:1024px){.footer-grid{grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:38px;}.site-footer{padding:58px 0 24px;}}

/* ============ Mobile bar ============ */
.mobile-bar{position:fixed;left:0;right:0;bottom:0;z-index:70;display:flex;align-items:center;justify-content:space-between;gap:12px;height:64px;padding:0 16px;padding-bottom:env(safe-area-inset-bottom);background:#fff;box-shadow:0 -6px 20px rgba(11,59,87,.12);}
.mobile-bar-text{font-size:13.5px;font-weight:600;color:var(--brand-900);line-height:1.4;}
.mobile-bar-text span{display:block;font-size:11.5px;font-weight:500;color:var(--muted);}
.mobile-bar .btn{height:42px;padding:0 18px;font-size:14px;}
@media (min-width:1024px){.mobile-bar{display:none;}}
@media (max-width:1023px){.page-body{padding-bottom:76px;}}

@media (prefers-reduced-motion:reduce){
  *{animation-duration:.001ms!important;transition-duration:.001ms!important;}
  html{scroll-behavior:auto;}
}

/* roulang page: category2 */
:root{
    --brand-900:#0B3B57;
    --brand-700:#0E6A8A;
    --brand-500:#2E9BB5;
    --accent:#F97316;
    --accent-hover:#EA580C;
    --bg:#F5F9FC;
    --surface:#FFFFFF;
    --text:#102A3A;
    --muted:#5B7280;
    --border:#DCE8F0;
    --success:#1F9D74;
    --radius-card:18px;
    --radius-btn:12px;
    --radius-img:16px;
    --shadow-card:0 10px 30px rgba(11,59,87,.08);
    --shadow-hover:0 16px 36px rgba(11,59,87,.12);
    --shadow-nav:0 6px 24px rgba(11,59,87,.08);
    --ease:180ms cubic-bezier(.4,0,.2,1);
  }

  *,*::before,*::after{box-sizing:border-box;}
  html{scroll-behavior:smooth;scroll-padding-top:96px;}
  body.site-body{
    margin:0;
    font-family:"Noto Sans SC","PingFang SC","Microsoft YaHei",system-ui,sans-serif;
    background:var(--bg);
    color:var(--text);
    font-size:17px;
    line-height:1.75;
    -webkit-font-smoothing:antialiased;
    text-rendering:optimizeLegibility;
  }
  img{max-width:100%;display:block;}
  a{color:var(--brand-700);text-decoration:none;transition:color var(--ease);}
  a:hover{color:var(--accent);}
  button{font-family:inherit;}
  h1,h2,h3,h4{margin:0;letter-spacing:-.01em;line-height:1.22;font-weight:800;color:var(--brand-900);}
  p{margin:0;}
  ul{list-style:none;margin:0;padding:0;}
  :focus-visible{outline:2px solid var(--accent);outline-offset:2px;border-radius:6px;}

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

  /* ---------- 按钮 ---------- */
  .btn{
    display:inline-flex;align-items:center;justify-content:center;gap:8px;
    height:48px;padding:0 24px;border-radius:var(--radius-btn);
    font-size:16px;font-weight:600;line-height:1;border:1px solid transparent;
    cursor:pointer;transition:background var(--ease),color var(--ease),transform var(--ease),box-shadow var(--ease),border-color var(--ease);
    text-decoration:none;white-space:nowrap;
  }
  .btn-sm{height:40px;padding:0 18px;font-size:14px;border-radius:10px;}
  .btn-block{width:100%;}
  .btn-primary{background:var(--accent);color:#fff;border-color:var(--accent);box-shadow:0 6px 16px rgba(249,115,22,.24);}
  .btn-primary:hover{background:var(--accent-hover);border-color:var(--accent-hover);color:#fff;transform:translateY(-1px);box-shadow:0 10px 22px rgba(249,115,22,.28);}
  .btn-primary:active{transform:scale(.98);}
  .btn-ghost{background:#fff;color:var(--brand-900);border-color:#A9CBDC;}
  .btn-ghost:hover{background:#EAF4F9;color:var(--brand-900);border-color:var(--brand-700);transform:translateY(-1px);}
  .btn-ghost:active{transform:scale(.98);}

  /* ---------- 头部 ---------- */
  .site-header{
    position:sticky;top:0;z-index:60;
    background:rgba(255,255,255,.96);
    border-bottom:1px solid var(--border);
    transition:box-shadow var(--ease);
  }
  .site-header.is-scrolled{box-shadow:var(--shadow-nav);}
  .header-inner{display:flex;align-items:center;gap:24px;height:72px;}
  .brand{display:inline-flex;align-items:center;gap:10px;flex-shrink:0;}
  .brand-mark{
    width:34px;height:34px;border-radius:11px;display:inline-flex;align-items:center;justify-content:center;
    background:linear-gradient(135deg,var(--brand-700),var(--brand-500));color:#fff;
    box-shadow:0 4px 12px rgba(14,106,138,.25);
  }
  .logo-text{font-size:19px;font-weight:800;color:var(--brand-900);letter-spacing:-.02em;line-height:1;}
  .logo-dot{color:var(--accent);margin-left:2px;}
  .main-nav{display:flex;align-items:center;gap:26px;margin-left:8px;}
  .nav-link{
    position:relative;font-size:15px;font-weight:500;color:#37586D;padding:6px 0;
    transition:color var(--ease);
  }
  .nav-link::after{
    content:"";position:absolute;left:0;right:0;bottom:-2px;height:2px;border-radius:2px;
    background:var(--accent);transform:scaleX(0);transform-origin:left;transition:transform var(--ease);
  }
  .nav-link:hover,.nav-link:focus-visible{color:var(--brand-900);}
  .nav-link:hover::after,.nav-link:focus-visible::after{transform:scaleX(1);}
  .nav-link.active{color:var(--brand-900);font-weight:700;}
  .nav-link.active::after{transform:scaleX(1);}
  .header-tools{display:flex;align-items:center;gap:14px;margin-left:auto;}
  .nav-search{position:relative;display:flex;align-items:center;}
  .nav-search svg{position:absolute;left:12px;color:#8CA7B7;pointer-events:none;}
  .nav-search input{
    width:238px;height:40px;border-radius:12px;border:1px solid var(--border);
    background:#fff;padding:0 14px 0 36px;font-size:14px;color:var(--text);
    transition:border-color var(--ease),box-shadow var(--ease);
  }
  .nav-search input::placeholder{color:#94AAB8;}
  .nav-search input:focus{outline:none;border-color:var(--accent);box-shadow:0 0 0 3px rgba(249,115,22,.18);}
  .login-link{font-size:15px;font-weight:500;color:var(--brand-700);}
  .login-link:hover{color:var(--accent);}
  .menu-toggle{
    display:none;width:42px;height:42px;border-radius:12px;border:1px solid var(--border);
    background:#fff;color:var(--brand-900);align-items:center;justify-content:center;cursor:pointer;
    transition:background var(--ease),border-color var(--ease);
  }
  .menu-toggle:hover{background:#EAF4F9;border-color:#BFDDEC;}

  /* ---------- 移动端抽屉 ---------- */
  .mobile-drawer{
    position:fixed;inset:0;z-index:90;background:#fff;display:none;
    flex-direction:column;padding:18px 20px 28px;overflow-y:auto;
  }
  .mobile-drawer.open{display:flex;}
  .drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:18px;}
  .drawer-close{
    width:40px;height:40px;border-radius:12px;border:1px solid var(--border);background:#fff;
    color:var(--brand-900);display:inline-flex;align-items:center;justify-content:center;cursor:pointer;
  }
  .drawer-close:hover{background:#EAF4F9;}
  .drawer-search{position:relative;display:flex;align-items:center;margin-bottom:18px;}
  .drawer-search svg{position:absolute;left:14px;color:#8CA7B7;}
  .drawer-search input{
    width:100%;height:48px;border-radius:12px;border:1px solid var(--border);background:#F7FBFD;
    padding:0 16px 0 42px;font-size:15px;color:var(--text);
  }
  .drawer-search input:focus{outline:none;border-color:var(--accent);box-shadow:0 0 0 3px rgba(249,115,22,.18);background:#fff;}
  .drawer-nav{display:flex;flex-direction:column;gap:4px;margin-bottom:auto;}
  .drawer-nav a{
    padding:14px 12px;border-radius:12px;font-size:16px;font-weight:500;color:#274A5F;
    border-left:3px solid transparent;transition:background var(--ease),color var(--ease),border-color var(--ease);
  }
  .drawer-nav a:hover{background:#EAF4F9;color:var(--brand-900);}
  .drawer-nav a.active{background:#EAF4F9;color:var(--brand-900);font-weight:700;border-left-color:var(--accent);}
  .drawer-foot{display:grid;gap:12px;margin-top:24px;padding-top:20px;border-top:1px solid var(--border);}

  /* ---------- 页面横幅 ---------- */
  .page-banner{
    position:relative;overflow:hidden;
    background:linear-gradient(180deg,#E7F3F9 0%,#F5F9FC 100%);
    border-bottom:1px solid var(--border);
    padding:40px 0 56px;
  }
  .page-banner::before{
    content:"";position:absolute;inset:0;
    background-image:repeating-linear-gradient(135deg,rgba(11,59,87,.05) 0 1px,transparent 1px 16px);
    pointer-events:none;
  }
  .page-banner::after{
    content:"";position:absolute;right:-40px;top:-30px;width:520px;height:340px;
    background:url('/assets/images/backpic/back-2.png') center/cover no-repeat;
    opacity:.16;border-radius:32px;pointer-events:none;
  }
  .banner-inner{position:relative;z-index:1;}
  .breadcrumb{display:flex;align-items:center;gap:8px;font-size:12.5px;color:#7F98A8;margin-bottom:18px;flex-wrap:wrap;}
  .breadcrumb a{color:#5B7A8D;}
  .breadcrumb a:hover{color:var(--accent);}
  .breadcrumb .sep{color:#B4C7D3;}
  .banner-tag{
    display:inline-block;padding:5px 13px;border-radius:999px;background:rgba(249,115,22,.12);
    color:#C2410C;font-size:13px;font-weight:600;letter-spacing:.02em;
  }
  .page-banner h1{
    font-size:clamp(1.85rem,3.6vw,2.7rem);
    line-height:1.25;margin:16px 0 14px;max-width:960px;
  }
  .banner-lead{font-size:16.5px;color:#4A6879;line-height:1.85;max-width:820px;margin:0;}
  .banner-chips{display:flex;flex-wrap:wrap;gap:10px;margin-top:24px;}
  .banner-chips li{
    padding:6px 15px;border-radius:999px;background:#fff;border:1px solid var(--border);
    font-size:13.5px;color:#2B4C61;font-weight:500;
  }

  /* ---------- 主体布局 ---------- */
  .section{padding:72px 0;}
  .layout-3-9{display:grid;grid-template-columns:270px minmax(0,1fr);gap:34px;align-items:start;}

  .side-toc{position:sticky;top:96px;align-self:start;}
  .toc-card{
    background:var(--surface);border:1px solid var(--border);border-radius:var(--radius-card);
    padding:22px;box-shadow:var(--shadow-card);
  }
  .toc-title{
    font-size:12.5px;font-weight:700;letter-spacing:.1em;color:#7F98A8;
    margin-bottom:12px;
  }
  .toc-list{display:flex;flex-direction:column;gap:2px;}
  .toc-list a{
    display:block;padding:9px 10px;border-radius:10px;font-size:14.5px;color:#35586D;
    border-left:3px solid transparent;transition:background var(--ease),color var(--ease),border-color var(--ease);
  }
  .toc-list a:hover{background:#EAF4F9;color:var(--brand-900);}
  .toc-list a.is-active{background:#EAF4F9;color:var(--brand-900);font-weight:600;border-left-color:var(--accent);}
  .toc-foot{margin-top:16px;padding-top:16px;border-top:1px dashed var(--border);}
  .toc-foot p{font-size:13px;color:var(--muted);line-height:1.7;margin-bottom:10px;}
  .toc-foot a{font-size:14px;font-weight:600;color:var(--brand-700);display:inline-flex;align-items:center;gap:6px;}
  .toc-foot a:hover{color:var(--accent);}

  .data-bar{
    display:grid;grid-template-columns:repeat(4,1fr);
    background:var(--surface);border:1px solid var(--border);border-radius:var(--radius-card);
    overflow:hidden;box-shadow:var(--shadow-card);margin-bottom:40px;
  }
  .data-item{padding:18px 20px;border-left:1px solid var(--border);}
  .data-item:first-child{border-left:none;}
  .data-num{font-size:24px;font-weight:800;color:var(--brand-700);line-height:1.2;}
  .data-num span{font-size:14px;font-weight:700;margin-left:2px;}
  .data-label{font-size:13px;color:var(--muted);margin-top:6px;}

  .group{margin-bottom:52px;scroll-margin-top:96px;}
  .group:last-child{margin-bottom:0;}
  .group-head{display:flex;gap:16px;align-items:flex-start;margin-bottom:22px;}
  .group-index{
    flex-shrink:0;display:inline-flex;align-items:center;justify-content:center;
    width:36px;height:36px;border-radius:11px;background:#EAF4F9;color:var(--brand-700);
    font-size:13px;font-weight:800;letter-spacing:.04em;margin-top:2px;
  }
  .group-head h2{font-size:clamp(1.35rem,2.2vw,1.7rem);line-height:1.3;}
  .group-desc{font-size:15px;color:var(--muted);margin-top:8px;line-height:1.8;max-width:640px;}

  .info-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:22px;}
  .info-card{
    display:flex;flex-direction:column;gap:12px;
    background:var(--surface);border:1px solid var(--border);border-radius:var(--radius-card);
    padding:24px;box-shadow:var(--shadow-card);
    transition:transform var(--ease),box-shadow var(--ease),border-color var(--ease);
  }
  .info-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover);border-color:#C6DFEC;}
  .info-icon{
    width:46px;height:46px;border-radius:14px;background:#EAF4F9;color:var(--brand-700);
    display:inline-flex;align-items:center;justify-content:center;
  }
  .info-card h3{font-size:19px;font-weight:700;line-height:1.4;}
  .info-card p{font-size:15px;color:var(--muted);line-height:1.8;}
  .info-link{
    margin-top:auto;display:inline-flex;align-items:center;gap:6px;
    font-size:14px;font-weight:600;color:var(--brand-700);padding-top:4px;
  }
  .info-link svg{transition:transform var(--ease);}
  .info-link:hover{color:var(--accent);}
  .info-link:hover svg{transform:translateX(3px);}

  .group-figure{margin:24px 0 0;}
  .group-figure img{
    width:100%;height:250px;object-fit:cover;border-radius:var(--radius-img);
    border:1px solid var(--border);
  }
  .group-figure figcaption{font-size:13px;color:#7F98A8;margin-top:10px;line-height:1.7;}

  /* ---------- 流程 ---------- */
  .steps{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:20px;}
  .step{
    background:var(--surface);border:1px solid var(--border);border-radius:16px;padding:22px;
    transition:transform var(--ease),box-shadow var(--ease);
  }
  .step:hover{transform:translateY(-3px);box-shadow:var(--shadow-hover);}
  .step-num{
    width:32px;height:32px;border-radius:50%;background:var(--brand-900);color:#fff;
    font-size:14px;font-weight:700;display:inline-flex;align-items:center;justify-content:center;margin-bottom:12px;
  }
  .step h3{font-size:17px;font-weight:700;margin-bottom:8px;}
  .step p{font-size:14.5px;color:var(--muted);line-height:1.8;}

  /* ---------- FAQ ---------- */
  .faq-section{background:var(--surface);border-top:1px solid var(--border);border-bottom:1px solid var(--border);}
  .faq-layout{display:grid;grid-template-columns:1fr 1.8fr;gap:40px;align-items:start;}
  .faq-layout h2{font-size:clamp(1.5rem,2.6vw,2rem);line-height:1.3;}
  .faq-layout .faq-note{font-size:15px;color:var(--muted);margin-top:14px;line-height:1.8;}
  .faq-list{display:grid;gap:14px;}
  .faq-item{
    background:#fff;border:1px solid var(--border);border-radius:14px;overflow:hidden;
    transition:background var(--ease),border-color var(--ease);
  }
  .faq-item.open{background:#F2F9FD;border-color:#BFDDEC;}
  .faq-q{
    width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;
    padding:18px 20px;background:transparent;border:none;cursor:pointer;text-align:left;
    font-size:16.5px;font-weight:600;color:var(--brand-900);line-height:1.5;
  }
  .faq-q:hover{color:var(--brand-700);}
  .faq-icon{
    flex-shrink:0;width:26px;height:26px;border-radius:50%;background:#EAF4F9;color:var(--brand-700);
    display:inline-flex;align-items:center;justify-content:center;
    transition:transform var(--ease),background var(--ease),color var(--ease);
  }
  .faq-item.open .faq-icon{transform:rotate(45deg);background:var(--accent);color:#fff;}
  .faq-a{max-height:0;overflow:hidden;transition:max-height 260ms cubic-bezier(.4,0,.2,1);}
  .faq-a-inner{padding:0 20px 20px;font-size:15.5px;color:#4A6879;line-height:1.85;}

  /* ---------- 底部 CTA ---------- */
  .cta-panel{
    position:relative;overflow:hidden;
    background:var(--brand-900);border-radius:24px;padding:44px;
    display:grid;grid-template-columns:1fr 1.05fr;gap:40px;align-items:center;color:#fff;
  }
  .cta-panel::before{
    content:"";position:absolute;inset:0;
    background-image:repeating-linear-gradient(135deg,rgba(255,255,255,.05) 0 1px,transparent 1px 18px);
    pointer-events:none;
  }
  .cta-copy{position:relative;z-index:1;}
  .cta-copy h2{color:#fff;font-size:clamp(1.5rem,2.4vw,2rem);line-height:1.3;}
  .cta-copy p{color:#BBD4E2;font-size:15px;line-height:1.85;margin-top:14px;}
  .cta-points{display:grid;gap:8px;margin-top:20px;}
  .cta-points li{display:flex;align-items:center;gap:8px;font-size:14px;color:#CDE1EC;}
  .cta-points svg{color:var(--brand-500);flex-shrink:0;}
  .cta-form{position:relative;z-index:1;display:grid;gap:14px;}
  .form-row{display:grid;grid-template-columns:1fr 1fr;gap:14px;}
  .field{display:grid;gap:6px;}
  .field label{font-size:13px;color:#BBD4E2;font-weight:500;}
  .field input,.field textarea{
    width:100%;height:48px;border-radius:12px;border:1px solid rgba(255,255,255,.22);
    background:#fff;color:var(--text);padding:0 14px;font-size:15px;font-family:inherit;
    transition:border-color var(--ease),box-shadow var(--ease);
  }
  .field textarea{height:88px;padding:12px 14px;resize:vertical;line-height:1.6;}
  .field input::placeholder,.field textarea::placeholder{color:#9FB3C0;}
  .field input:focus,.field textarea:focus{
    outline:none;border-color:var(--accent);box-shadow:0 0 0 3px rgba(249,115,22,.32);
  }
  .form-note{font-size:12.5px;color:#9DBACB;line-height:1.7;}
  .form-status{font-size:13.5px;color:#7FE3B6;min-height:0;}
  .form-status:empty{display:none;}

  /* ---------- 页脚 ---------- */
  .site-footer{background:#072A3E;color:#C7DCE8;padding:56px 0 28px;font-size:14.5px;}
  .footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.2fr;gap:32px;}
  .footer-brand .logo-text{color:#fff;font-size:19px;}
  .footer-brand p{color:#9DBACB;line-height:1.85;font-size:14px;margin:14px 0 18px;max-width:340px;}
  .footer-contact-list{display:grid;gap:10px;}
  .footer-contact-list li{display:flex;align-items:center;gap:8px;color:#9DBACB;font-size:13.5px;}
  .footer-contact-list svg{color:var(--brand-500);flex-shrink:0;}
  .footer-col h3{font-size:15px;color:#fff;margin-bottom:16px;font-weight:700;letter-spacing:0;}
  .footer-col ul{display:grid;gap:10px;}
  .footer-col a,.footer-col span{color:#9DBACB;font-size:14px;line-height:1.7;transition:color var(--ease);}
  .footer-col a:hover{color:var(--accent);}
  .footer-bottom{
    margin-top:36px;padding-top:20px;border-top:1px solid rgba(255,255,255,.12);
    display:flex;justify-content:space-between;gap:12px;flex-wrap:wrap;color:#7E9CAE;font-size:13px;
  }

  /* ---------- 移动端固定条 ---------- */
  .mobile-bar{
    position:fixed;left:0;right:0;bottom:0;z-index:70;display:none;
    align-items:center;justify-content:space-between;gap:12px;
    height:64px;padding:0 16px;background:#fff;
    box-shadow:0 -6px 20px rgba(11,59,87,.10);
    padding-bottom:env(safe-area-inset-bottom);
  }
  .mobile-bar-text{font-size:14px;font-weight:600;color:var(--brand-900);}

  /* ---------- 响应式 ---------- */
  @media (max-width:1100px){
    .nav-search input{width:190px;}
    .main-nav{gap:20px;}
  }
  @media (max-width:1024px){
    .main-nav,.nav-search,.login-link,.header-tools .btn{display:none;}
    .menu-toggle{display:inline-flex;}
    .header-inner{justify-content:space-between;}
    .layout-3-9{grid-template-columns:1fr;gap:26px;}
    .side-toc{position:static;}
    .toc-list{display:grid;grid-template-columns:1fr 1fr;gap:4px;}
    .toc-card{padding:18px;}
    .faq-layout{grid-template-columns:1fr;gap:24px;}
    .cta-panel{grid-template-columns:1fr;padding:34px 26px;gap:28px;}
    .footer-grid{grid-template-columns:1fr 1fr;gap:28px;}
    .data-bar{grid-template-columns:1fr 1fr;}
    .data-item:nth-child(3){border-left:none;border-top:1px solid var(--border);}
    .data-item:nth-child(4){border-top:1px solid var(--border);}
    .mobile-bar{display:flex;}
    body.site-body{padding-bottom:74px;}
    .page-banner::after{display:none;}
  }
  @media (max-width:768px){
    body.site-body{font-size:16px;}
    .section{padding:56px 0;}
    .page-banner{padding:28px 0 40px;}
    .page-banner h1{max-width:none;}
    .banner-lead{font-size:15.5px;}
    .info-grid{grid-template-columns:1fr;}
    .steps{grid-template-columns:1fr;}
    .group-figure img{height:190px;}
    .faq-q{font-size:15.5px;padding:16px;}
    .faq-a-inner{padding:0 16px 16px;}
    .cta-panel{padding:28px 20px;border-radius:20px;}
    .form-row{grid-template-columns:1fr;}
    .site-footer{padding:44px 0 24px;}
    .footer-grid{grid-template-columns:1fr 1fr;gap:24px;}
    .footer-brand{grid-column:1 / -1;}
  }
  @media (max-width:520px){
    .container{padding:0 16px;}
    .logo-text{font-size:16.5px;}
    .brand-mark{width:30px;height:30px;border-radius:10px;}
    .toc-list{grid-template-columns:1fr;}
    .data-bar{grid-template-columns:1fr;}
    .data-item{border-left:none;border-top:1px solid var(--border);}
    .data-item:first-child{border-top:none;}
    .footer-grid{grid-template-columns:1fr;}
    .footer-brand{grid-column:auto;}
    .btn{height:46px;font-size:15px;padding:0 20px;}
    .btn-sm{height:40px;font-size:14px;}
    .mobile-bar-text{font-size:13.5px;}
  }
  @media (prefers-reduced-motion:reduce){
    *,*::before,*::after{animation-duration:.01ms !important;transition-duration:.01ms !important;}
    html{scroll-behavior:auto;}
  }