/* roulang page: index */
:root{
  --brand:#1F4E68;
  --brand-dark:#173C52;
  --accent:#E8B449;
  --bg:#F6F8FA;
  --surface:#FFFFFF;
  --ink:#16212B;
  --ink-2:#2C3A46;
  --muted:#6C7C8B;
  --line:#E2E9EF;
  --dark:#0F2233;
  --shadow-sm:0 1px 2px rgba(16,33,46,.05);
  --shadow-md:0 6px 20px rgba(16,33,46,.07);
  --shadow-lg:0 14px 32px rgba(16,33,46,.10);
  --radius-card:16px;
  --radius-btn:10px;
  --shell:1200px;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:"PingFang SC","Hiragino Sans GB","Noto Sans SC","Microsoft YaHei",sans-serif;
  font-size:16px;
  line-height:1.75;
  color:var(--ink-2);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4,p,ul,ol,figure{margin:0;}
ul,ol{padding:0;list-style:none;}
img{max-width:100%;display:block;}
a{color:inherit;text-decoration:none;}
button{font-family:inherit;}
.shell{width:100%;max-width:var(--shell);margin:0 auto;padding:0 24px;}
.tnum{font-variant-numeric:tabular-nums;font-feature-settings:"tnum";}
a:focus-visible,button:focus-visible,input:focus-visible{
  outline:2px solid var(--brand);
  outline-offset:2px;
}

/* ============ 导航 ============ */
.site-header{
  position:sticky;top:0;z-index:60;
  background:var(--surface);
  border-bottom:1px solid var(--line);
  transition:box-shadow .25s ease;
}
.site-header.is-scrolled{box-shadow:0 4px 18px rgba(16,33,46,.07);}
.nav-bar{
  display:flex;align-items:center;justify-content:space-between;
  height:64px;gap:24px;
}
.nav-left{display:flex;align-items:center;gap:38px;min-width:0;}
.brand{display:flex;flex-direction:column;line-height:1.15;flex:none;}
.brand-name{font-size:19px;font-weight:700;color:var(--ink);letter-spacing:.04em;}
.brand-sub{font-size:9px;letter-spacing:.22em;color:var(--muted);margin-top:4px;}
.nav-links{display:flex;align-items:center;gap:26px;}
.nav-link{
  position:relative;font-size:15px;color:var(--ink-2);
  padding:8px 0;white-space:nowrap;transition:color .2s ease;
}
.nav-link::after{
  content:"";position:absolute;left:0;right:0;bottom:0;height:2px;border-radius:2px;
  background:var(--brand);transform:scaleX(0);transform-origin:left;
  transition:transform .22s ease;
}
.nav-link:hover{color:var(--brand);}
.nav-link:hover::after,.nav-link.active::after{transform:scaleX(1);}
.nav-link.active{color:var(--brand);font-weight:600;}
.nav-right{display:flex;align-items:center;gap:14px;flex:none;}
.icon-btn{
  width:38px;height:38px;display:inline-flex;align-items:center;justify-content:center;
  border:1px solid var(--line);background:var(--surface);border-radius:10px;
  color:var(--ink-2);cursor:pointer;transition:border-color .2s,background .2s,color .2s;
}
.icon-btn:hover{border-color:var(--brand);color:var(--brand);background:#F0F5F8;}
.hamburger{
  display:none;width:38px;height:38px;border:1px solid var(--line);border-radius:10px;
  background:var(--surface);cursor:pointer;padding:0;align-items:center;justify-content:center;
}
.hamburger span{display:block;width:17px;height:2px;background:var(--ink);border-radius:2px;position:relative;}
.hamburger span::before,.hamburger span::after{
  content:"";position:absolute;left:0;width:17px;height:2px;background:var(--ink);border-radius:2px;
}
.hamburger span::before{top:-6px;}
.hamburger span::after{top:6px;}
.mobile-drawer{display:none;border-top:1px solid var(--line);background:var(--surface);padding:14px 24px 24px;}
.mobile-drawer.open{display:block;}
.drawer-link{
  display:block;padding:13px 4px;font-size:16px;color:var(--ink-2);
  border-bottom:1px solid var(--line);
}
.drawer-link.active{color:var(--brand);font-weight:600;}
.drawer-cta{margin-top:18px;width:100%;}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  border-radius:var(--radius-btn);font-size:15px;font-weight:500;
  padding:12px 22px;border:1px solid transparent;cursor:pointer;
  transition:background .2s ease,color .2s ease,border-color .2s ease,transform .2s ease,box-shadow .2s ease;
  white-space:nowrap;
}
.btn-primary{background:var(--brand);color:#fff;}
.btn-primary:hover{background:var(--brand-dark);transform:translateY(-1px);box-shadow:var(--shadow-md);}
.btn-primary:active{transform:translateY(0);box-shadow:none;}
.btn-ghost{background:transparent;border-color:#CFDAE3;color:var(--ink);}
.btn-ghost:hover{border-color:var(--brand);background:#F0F5F8;color:var(--brand);}
.btn-sm{padding:9px 18px;font-size:14px;}
.btn-link{
  display:inline-flex;align-items:center;gap:6px;font-size:15px;color:var(--brand);
  font-weight:500;transition:color .2s;
}
.btn-link .arw{transition:transform .22s ease;}
.btn-link:hover{color:var(--brand-dark);}
.btn-link:hover .arw{transform:translateX(3px);}

/* ============ 徽章 ============ */
.badge{
  display:inline-flex;align-items:center;gap:6px;
  border-radius:999px;font-size:12px;line-height:1.6;
  padding:4px 12px;font-weight:500;
}
.badge-accent{background:#FBF0D6;color:var(--brand-dark);}
.badge-gray{background:#EEF2F6;color:var(--muted);}

/* ============ 板块 ============ */
.section{padding:88px 0;}
.section-tight{padding:64px 0;}
.section-head{
  display:flex;align-items:flex-end;justify-content:space-between;
  gap:24px;flex-wrap:wrap;
}
.section-title{
  position:relative;padding-left:16px;
  font-size:26px;font-weight:600;line-height:1.4;color:var(--ink);
}
.section-title::before{
  content:"";position:absolute;left:0;top:50%;transform:translateY(-50%);
  width:4px;height:18px;border-radius:2px;background:var(--brand);
}
.section-desc{font-size:15px;color:var(--muted);margin-top:8px;padding-left:16px;}

/* ============ Hero ============ */
.hero{padding:60px 0 88px;}
.hero-grid{
  display:grid;grid-template-columns:1.06fr 1fr;
  gap:56px;align-items:center;
}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  background:#FBF0D6;color:var(--brand-dark);
  border-radius:999px;padding:6px 14px;font-size:13px;font-weight:500;
}
.eyebrow .dot{width:6px;height:6px;border-radius:50%;background:var(--accent);}
.hero h1{
  font-size:clamp(30px,3.7vw,50px);
  line-height:1.25;font-weight:600;color:var(--ink);
  margin:20px 0 18px;letter-spacing:-.5px;
}
.kw-mark{
  background:linear-gradient(transparent 64%, rgba(232,180,73,.55) 64%);
  padding-bottom:2px;border-radius:2px;
}
.hero-sub{font-size:17px;color:var(--muted);max-width:26em;line-height:1.85;}
.hero-actions{display:flex;gap:14px;margin-top:30px;flex-wrap:wrap;}
.hero-stats{display:flex;align-items:center;gap:22px;margin-top:36px;flex-wrap:wrap;}
.stat-block{display:flex;flex-direction:column;line-height:1.3;}
.stat-num{font-size:22px;font-weight:600;color:var(--ink);}
.stat-label{font-size:12px;color:var(--muted);margin-top:2px;}
.stat-div{width:1px;height:30px;background:var(--line);}
.hero-visual{position:relative;}
.hero-visual img{
  width:100%;aspect-ratio:4/3;object-fit:cover;
  border-radius:var(--radius-card);box-shadow:var(--shadow-md);
}
.hero-tag{
  position:absolute;right:14px;bottom:14px;background:#fff;
  border-radius:12px;box-shadow:var(--shadow-md);
  padding:12px 16px;max-width:230px;
}
.hero-tag .tag-title{font-size:14px;font-weight:600;color:var(--ink);}
.hero-tag .tag-desc{font-size:12px;color:var(--muted);margin-top:2px;line-height:1.6;}

/* ============ 品牌主张 ============ */
.claim-grid{display:grid;grid-template-columns:1.7fr 1fr;gap:56px;align-items:start;margin-top:36px;}
.claim-body p{font-size:16px;line-height:1.95;color:var(--ink-2);margin-top:16px;}
.claim-body p:first-child{margin-top:0;}
.claim-list{display:flex;flex-direction:column;gap:26px;padding-top:6px;}
.claim-item{display:flex;gap:14px;align-items:flex-start;}
.claim-num{font-size:24px;font-weight:600;color:var(--accent);line-height:1.1;letter-spacing:.02em;}
.claim-txt strong{display:block;font-size:15px;font-weight:600;color:var(--ink);}
.claim-txt span{display:block;font-size:14px;color:var(--muted);line-height:1.8;margin-top:2px;}

/* ============ 精选内容 ============ */
.feature-grid{display:grid;grid-template-columns:repeat(12,1fr);gap:24px;margin-top:40px;}
.feature-main{grid-column:span 7;}
.feature-side{grid-column:span 5;display:grid;grid-template-rows:1fr 1fr;gap:24px;}
.card{
  position:relative;display:block;background:var(--surface);
  border:1px solid var(--line);border-radius:var(--radius-card);
  overflow:hidden;box-shadow:var(--shadow-sm);
  transition:transform .25s ease,box-shadow .25s ease;
}
.card:hover{transform:translateY(-2px);box-shadow:var(--shadow-lg);}
.card-media{position:relative;overflow:hidden;}
.card-media img{width:100%;aspect-ratio:16/9;object-fit:cover;transition:transform .4s ease;}
.card:hover .card-media img{transform:scale(1.03);}
.card-badge{position:absolute;left:14px;top:14px;}
.card-body{padding:20px 22px 24px;}
.card-title{font-size:19px;line-height:1.5;font-weight:600;color:var(--ink);}
.card-small .card-title{font-size:17px;}
.card-desc{font-size:14px;color:var(--muted);line-height:1.8;margin-top:8px;}
.card-foot{display:flex;align-items:center;justify-content:space-between;margin-top:14px;}
.card-date{font-size:12px;color:var(--muted);}
.card-arrow{
  width:30px;height:30px;border-radius:50%;display:inline-flex;
  align-items:center;justify-content:center;background:#F0F5F8;color:var(--brand);
  font-size:14px;transition:transform .22s ease,background .22s ease,color .22s ease;
}
.card:hover .card-arrow{transform:translateX(3px);background:var(--brand);color:#fff;}

/* ============ 最新动态列表 ============ */
.news-list{margin-top:32px;border-top:1px solid var(--line);}
.news-item{
  display:grid;grid-template-columns:auto minmax(0,1fr) auto;
  gap:20px;align-items:start;
  padding:22px 10px;border-bottom:1px solid var(--line);
  transition:background .2s ease;
}
.news-item:hover{background:#FAFCFD;}
.news-badge-cell{padding-top:2px;}
.news-title{
  font-size:17px;font-weight:600;color:var(--ink);line-height:1.55;
  transition:color .2s ease;
}
.news-item:hover .news-title{color:var(--brand);}
.news-desc{
  font-size:15px;color:var(--muted);line-height:1.8;margin-top:6px;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.news-side{display:flex;align-items:center;gap:16px;padding-top:2px;}
.news-date{font-size:13px;color:var(--muted);white-space:nowrap;}
.news-arrow{color:var(--brand);font-size:16px;transition:transform .22s ease;}
.news-item:hover .news-arrow{transform:translateX(3px);}
.news-empty{
  display:flex;flex-direction:column;align-items:center;justify-content:center;
  padding:48px 20px;gap:14px;border-bottom:1px solid var(--line);
}
.news-empty .empty-ico{
  width:52px;height:52px;border-radius:50%;border:1.5px solid var(--line);
  display:flex;align-items:center;justify-content:center;color:var(--muted);
}
.news-empty p{font-size:14px;color:var(--muted);}

/* ============ 信任背书 ============ */
.proof{
  background:var(--surface);border:1px solid var(--line);
  border-radius:20px;padding:48px;box-shadow:var(--shadow-sm);
}
.proof-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px;}
.proof-item{text-align:left;padding-left:18px;border-left:1px solid var(--line);}
.proof-item:first-child{border-left:0;padding-left:0;}
.proof-num{font-size:34px;font-weight:600;color:var(--ink);line-height:1.1;}
.proof-num span{font-size:15px;color:var(--muted);margin-left:4px;font-weight:400;}
.proof-label{font-size:13px;color:var(--muted);margin-top:8px;}
.proof-partners{
  margin-top:36px;padding-top:26px;border-top:1px solid var(--line);
  display:flex;flex-wrap:wrap;gap:12px 34px;align-items:center;
}
.proof-partners span{font-size:13px;color:#93A2B0;letter-spacing:.03em;}
.proof-partners .lead{color:var(--muted);font-weight:500;}

/* ============ FAQ ============ */
.faq-list{margin-top:36px;max-width:920px;}
.faq-item{
  background:var(--surface);border:1px solid var(--line);
  border-radius:12px;margin-bottom:12px;overflow:hidden;
  transition:border-color .2s ease,box-shadow .2s ease;
}
.faq-item.open{border-color:#CBD8E2;box-shadow:var(--shadow-sm);}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:20px;
  background:none;border:0;cursor:pointer;text-align:left;
  padding:18px 22px;font-size:16px;font-weight:500;color:var(--ink);
  line-height:1.6;
}
.faq-q:hover{color:var(--brand);}
.faq-plus{
  flex:none;width:20px;height:20px;position:relative;
  transition:transform .25s ease;
}
.faq-plus::before,.faq-plus::after{
  content:"";position:absolute;background:var(--brand);border-radius:2px;
}
.faq-plus::before{left:0;top:9px;width:20px;height:2px;}
.faq-plus::after{left:9px;top:0;width:2px;height:20px;}
.faq-item.open .faq-plus{transform:rotate(45deg);}
.faq-a{max-height:0;overflow:hidden;transition:max-height .3s ease;background:#FAFCFD;}
.faq-item.open .faq-a{max-height:420px;}
.faq-a-inner{padding:16px 22px 22px;font-size:15px;line-height:1.85;color:var(--ink-2);}

/* ============ 深色 CTA ============ */
.cta-band{
  background:var(--dark);border-radius:20px;padding:48px;
  display:grid;grid-template-columns:minmax(0,1fr) auto;
  gap:36px;align-items:center;color:#fff;
}
.cta-band h2{font-size:26px;font-weight:600;line-height:1.4;color:#fff;}
.cta-band p{font-size:15px;color:rgba(255,255,255,.68);margin-top:10px;line-height:1.8;max-width:36em;}
.cta-form{display:flex;gap:12px;flex-wrap:wrap;}
.cta-input{
  background:rgba(255,255,255,.08);
  border:1px solid rgba(255,255,255,.2);
  color:#fff;border-radius:10px;padding:12px 16px;font-size:15px;
  min-width:250px;font-family:inherit;transition:border-color .2s,background .2s;
}
.cta-input::placeholder{color:rgba(255,255,255,.45);}
.cta-input:hover{border-color:rgba(255,255,255,.4);}
.cta-input:focus{border-color:var(--accent);background:rgba(255,255,255,.12);outline:none;}
.cta-form .btn-primary{background:#fff;color:var(--dark);}
.cta-form .btn-primary:hover{background:#F2E4C4;color:var(--dark);}
.cta-note{font-size:12px;color:rgba(255,255,255,.45);margin-top:14px;}

/* ============ 页脚 ============ */
.site-footer{
  background:var(--surface);border-top:1px solid var(--line);
  padding:64px 0 26px;margin-top:88px;
}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.1fr;gap:40px;}
.footer-brand .brand-name{font-size:18px;}
.footer-about{font-size:14px;color:var(--muted);line-height:1.85;margin-top:14px;max-width:26em;}
.footer-title{font-size:14px;font-weight:600;color:var(--ink);letter-spacing:.04em;}
.footer-list{margin-top:16px;display:flex;flex-direction:column;gap:10px;}
.footer-list a{font-size:14px;color:var(--muted);transition:color .2s ease;}
.footer-list a:hover{color:var(--brand);}
.footer-list li{font-size:14px;color:var(--muted);line-height:1.7;}
.footer-bottom{
  margin-top:44px;padding-top:20px;border-top:1px solid var(--line);
  display:flex;align-items:center;justify-content:space-between;
  gap:14px;flex-wrap:wrap;font-size:13px;color:var(--muted);
}
.footer-bottom a{color:var(--muted);}
.footer-bottom a:hover{color:var(--brand);}

/* ============ 响应式 ============ */
@media (max-width:1023px){
  .nav-links{display:none;}
  .hamburger{display:inline-flex;}
  .nav-bar{height:56px;}
  .hero{padding:44px 0 64px;}
  .hero-grid{grid-template-columns:1fr;gap:36px;}
  .hero-sub{max-width:none;}
  .claim-grid{grid-template-columns:1fr;gap:36px;}
  .feature-main,.feature-side{grid-column:span 12;}
  .feature-side{grid-template-rows:auto;grid-template-columns:1fr 1fr;gap:24px;}
  .proof-grid{grid-template-columns:1fr 1fr;gap:28px 24px;}
  .proof-item:nth-child(3){border-left:0;padding-left:0;}
  .proof-item{min-height:auto;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
  .cta-band{grid-template-columns:1fr;padding:36px;}
  .section{padding:72px 0;}
  .site-footer{margin-top:72px;}
}
@media (max-width:639px){
  .shell{padding:0 20px;}
  .hero h1{font-size:31px;}
  .hero-sub{font-size:16px;}
  .hero-stats{gap:16px;}
  .stat-div{height:26px;}
  .stat-num{font-size:19px;}
  .hero-tag{right:10px;bottom:10px;max-width:190px;padding:10px 13px;}
  .hero-tag .tag-title{font-size:13px;}
  .hero-tag .tag-desc{font-size:11px;}
  .section{padding:56px 0;}
  .section-title{font-size:22px;}
  .feature-side{grid-template-columns:1fr;}
  .news-item{grid-template-columns:minmax(0,1fr) auto;gap:12px;}
  .news-badge-cell{grid-column:1 / -1;}
  .news-side{flex-direction:column;align-items:flex-end;gap:6px;}
  .news-title{font-size:16px;}
  .proof{padding:28px 22px;}
  .proof-grid{grid-template-columns:1fr 1fr;}
  .proof-num{font-size:26px;}
  .cta-band{padding:28px 22px;border-radius:16px;}
  .cta-band h2{font-size:21px;}
  .cta-input{min-width:0;width:100%;}
  .cta-form{flex-direction:column;width:100%;}
  .cta-form .btn{width:100%;}
  .footer-grid{grid-template-columns:1fr;gap:28px;}
  .faq-q{font-size:15px;padding:16px 18px;}
  .faq-a-inner{padding:14px 18px 18px;font-size:14.5px;}
}
@media (hover:none){
  .card:hover{transform:none;box-shadow:var(--shadow-sm);}
  .card:hover .card-media img{transform:none;}
  .btn-primary:hover{transform:none;}
  .news-item:hover .news-arrow{transform:none;}
}

/* roulang page: article */
:root{
  --brand:#1F4E68;
  --brand-dark:#173C52;
  --accent:#E8B449;
  --accent-soft:#FBF1D8;
  --bg:#F6F8FA;
  --surface:#FFFFFF;
  --ink:#16212B;
  --ink-2:#2C3A46;
  --muted:#6C7C8B;
  --line:#E2E9EF;
  --dark:#0F2233;
  --radius-lg:16px;
  --radius-md:12px;
  --radius-sm:10px;
  --shadow-sm:0 1px 2px rgba(16,33,46,.05);
  --shadow-md:0 6px 20px rgba(16,33,46,.07);
  --shadow-lg:0 14px 32px rgba(16,33,46,.10);
  --container:1200px;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;}
body{
  margin:0;
  font-family:"PingFang SC","Hiragino Sans GB","Noto Sans SC","Microsoft YaHei",sans-serif;
  background:var(--bg);
  color:var(--ink-2);
  font-size:16px;
  line-height:1.7;
  -webkit-font-smoothing:antialiased;
  -moz-osx-font-smoothing:grayscale;
}
img{max-width:100%;display:block;}
a{color:inherit;}
button{font-family:inherit;}
input{font-family:inherit;}
h1,h2,h3,h4,h5{margin:0;color:var(--ink);}
p{margin:0;}
ul,ol{margin:0;padding:0;list-style:none;}
a:focus-visible,button:focus-visible,input:focus-visible,summary:focus-visible{outline:2px solid var(--brand);outline-offset:2px;border-radius:6px;}
.shell{width:100%;max-width:var(--container);margin:0 auto;padding-left:24px;padding-right:24px;}
.num{font-variant-numeric:tabular-nums;}

/* ---------- header ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  background:var(--surface);
  border-bottom:1px solid var(--line);
  transition:box-shadow .22s ease;
}
.site-header.scrolled{box-shadow:var(--shadow-sm);}
.header-inner{display:flex;align-items:center;gap:30px;height:64px;}
.brand{display:flex;align-items:baseline;gap:8px;text-decoration:none;flex-shrink:0;}
.brand-name{font-size:18px;font-weight:600;color:var(--ink);letter-spacing:.02em;line-height:1;}
.brand-sub{font-size:11px;color:var(--muted);letter-spacing:.09em;line-height:1;}
.nav-links{display:flex;align-items:center;gap:26px;margin-left:6px;}
.nav-link{
  position:relative;font-size:15px;color:var(--ink-2);text-decoration:none;
  padding:8px 0;transition:color .18s ease;white-space:nowrap;
}
.nav-link::after{
  content:"";position:absolute;left:0;right:0;bottom:2px;height:2px;border-radius:2px;
  background:var(--brand);transform:scaleX(0);transform-origin:left;transition:transform .22s ease;
}
.nav-link:hover{color:var(--brand);}
.nav-link:hover::after{transform:scaleX(1);}
.nav-link.active{color:var(--brand);font-weight:600;}
.nav-link.active::after{transform:scaleX(1);}
.header-actions{margin-left:auto;display:flex;align-items:center;gap:12px;}
.icon-btn{
  width:38px;height:38px;display:inline-flex;align-items:center;justify-content:center;
  border:1px solid transparent;background:transparent;border-radius:10px;color:var(--ink-2);
  cursor:pointer;transition:background .18s,color .18s,border-color .18s;
}
.icon-btn:hover{background:#F0F5F8;color:var(--brand);border-color:var(--line);}
.menu-toggle{
  display:none;width:40px;height:40px;align-items:center;justify-content:center;
  background:transparent;border:1px solid var(--line);border-radius:10px;color:var(--ink);cursor:pointer;
}
.menu-toggle:hover{border-color:var(--brand);color:var(--brand);}
.mobile-drawer{
  display:none;position:fixed;left:0;right:0;top:64px;bottom:0;z-index:55;
  background:var(--surface);padding:18px 24px 34px;overflow-y:auto;
  flex-direction:column;gap:2px;border-top:1px solid var(--line);
}
.mobile-drawer.open{display:flex;}
.drawer-link{
  display:block;padding:14px 4px;font-size:16px;color:var(--ink-2);text-decoration:none;
  border-bottom:1px solid var(--line);
}
.drawer-link:hover{color:var(--brand);}
.drawer-cta{margin-top:20px;width:100%;}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:46px;padding:0 22px;border-radius:var(--radius-sm);
  font-size:15px;font-weight:500;line-height:1;text-decoration:none;cursor:pointer;
  border:1px solid transparent;
  transition:background .18s ease,color .18s ease,border-color .18s ease,box-shadow .18s ease,transform .18s ease;
}
.btn-primary{background:var(--brand);color:#fff;}
.btn-primary:hover{background:var(--brand-dark);box-shadow:var(--shadow-md);transform:translateY(-1px);}
.btn-primary:active{transform:translateY(0);box-shadow:var(--shadow-sm);}
.btn-ghost{background:transparent;color:var(--ink);border-color:#CFDAE3;}
.btn-ghost:hover{border-color:var(--brand);background:#F0F5F8;color:var(--brand);}
.btn-sm{height:38px;padding:0 16px;font-size:14px;border-radius:9px;}
.btn-text{
  display:inline-flex;align-items:center;gap:6px;font-size:15px;color:var(--brand);
  text-decoration:none;font-weight:500;transition:color .18s ease;
}
.btn-text .arw{transition:transform .2s ease;display:inline-block;}
.btn-text:hover{color:var(--brand-dark);}
.btn-text:hover .arw{transform:translateX(3px);}

/* ---------- badge ---------- */
.badge{
  display:inline-flex;align-items:center;height:24px;padding:0 10px;border-radius:999px;
  background:var(--accent-soft);color:var(--brand);font-size:12px;font-weight:500;
  letter-spacing:.02em;white-space:nowrap;
}
.badge-gray{background:#EDF2F6;color:var(--muted);}

/* ---------- breadcrumb ---------- */
.breadcrumb{
  display:flex;flex-wrap:wrap;align-items:center;gap:8px;
  font-size:13px;color:var(--muted);padding:28px 0 20px;
}
.breadcrumb a{color:var(--muted);text-decoration:none;transition:color .18s;}
.breadcrumb a:hover{color:var(--brand);}
.breadcrumb .sep{color:#B7C4CE;}
.breadcrumb .current{
  color:var(--ink-2);max-width:320px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;
}

/* ---------- article head ---------- */
.article-head{max-width:860px;}
.article-head h1{
  font-size:clamp(28px,3.6vw,40px);line-height:1.3;font-weight:600;color:var(--ink);
  margin:16px 0 0;max-width:820px;letter-spacing:-.01em;
}
.lede{
  font-size:16px;line-height:1.75;color:var(--muted);margin-top:14px;
  max-width:760px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.meta-row{
  display:flex;flex-wrap:wrap;align-items:center;gap:9px;
  font-size:13px;color:var(--muted);margin-top:22px;font-variant-numeric:tabular-nums;
}
.meta-row .dot{width:3px;height:3px;border-radius:50%;background:#C3CFD8;display:inline-block;}

/* ---------- cover ---------- */
.cover{margin:32px 0 0;}
.cover img{
  width:100%;aspect-ratio:16/9;object-fit:cover;border-radius:var(--radius-lg);
  box-shadow:var(--shadow-md);
}
.cover figcaption{font-size:13px;color:var(--muted);margin-top:12px;text-align:center;}

/* ---------- article grid ---------- */
.article-grid{
  display:grid;grid-template-columns:minmax(0,760px) 300px;gap:56px;
  align-items:start;padding:48px 0 0;
}
.prose{font-size:17px;line-height:1.95;color:var(--ink-2);min-width:0;}
.prose p{margin:0 0 1.2em;}
.prose h2{
  position:relative;font-size:24px;font-weight:600;color:var(--ink);
  line-height:1.42;margin:2em 0 .8em;padding-left:16px;
}
.prose h2::before{
  content:"";position:absolute;left:0;top:.34em;width:4px;height:18px;
  border-radius:2px;background:var(--brand);
}
.prose h3{font-size:19px;font-weight:600;color:var(--ink);margin:1.6em 0 .6em;line-height:1.5;}
.prose h4{font-size:17px;font-weight:600;color:var(--ink);margin:1.4em 0 .5em;}
.prose blockquote{
  margin:1.6em 0;padding:18px 22px;background:#F3F7FA;
  border-left:3px solid var(--brand);border-radius:0 10px 10px 0;
  font-size:15px;font-style:italic;color:var(--ink-2);
}
.prose blockquote p{margin:0 0 .6em;}
.prose blockquote p:last-child{margin-bottom:0;}
.prose ul,.prose ol{padding-left:1.4em;margin:0 0 1.2em;}
.prose ul li{list-style:disc;margin-bottom:8px;}
.prose ol li{list-style:decimal;margin-bottom:8px;}
.prose a{color:var(--brand);text-decoration:none;border-bottom:1px solid rgba(31,78,104,.25);transition:border-color .18s;}
.prose a:hover{border-bottom-color:var(--brand);}
.prose img{border-radius:12px;margin:1.4em auto;max-width:100%;height:auto;}
.prose figure{margin:1.6em 0;}
.prose figcaption{font-size:13px;color:var(--muted);text-align:center;margin-top:10px;}
.prose table{width:100%;border-collapse:collapse;font-size:15px;margin:1.4em 0;display:block;overflow-x:auto;white-space:nowrap;}
.prose th,.prose td{border:1px solid var(--line);padding:10px 14px;text-align:left;}
.prose th{background:#F6F9FB;font-weight:600;color:var(--ink);}
.prose hr{border:0;border-top:1px solid var(--line);margin:2em 0;}
.empty-state{
  border:1px dashed #CFDAE3;border-radius:var(--radius-lg);background:var(--surface);
  padding:64px 24px;text-align:center;color:var(--muted);
}
.empty-state svg{margin:0 auto 18px;color:#B7C4CE;}
.empty-state p{font-size:16px;color:var(--ink-2);margin-bottom:22px;}

/* ---------- aside ---------- */
.article-side{position:sticky;top:88px;display:flex;flex-direction:column;gap:20px;}
.toc{background:var(--surface);border:1px solid var(--line);border-radius:14px;padding:20px 20px 12px;box-shadow:var(--shadow-sm);}
.toc-title{font-size:13px;letter-spacing:.08em;color:var(--muted);margin-bottom:8px;}
.toc a{
  display:block;font-size:14px;color:var(--ink-2);text-decoration:none;
  padding:9px 0;border-bottom:1px dashed var(--line);transition:color .18s,padding-left .18s;
}
.toc a:last-child{border-bottom:0;}
.toc a:hover{color:var(--brand);padding-left:4px;}
.side-cta{
  background:#FBF6E9;border:1px solid #F0E2BC;border-radius:14px;padding:22px;
}
.side-cta h3{font-size:16px;font-weight:600;color:var(--ink);margin-bottom:8px;}
.side-cta p{font-size:13px;line-height:1.8;color:#7A6A42;margin-bottom:16px;}
.side-cta .btn{width:100%;height:42px;font-size:14px;}
.toc-mobile{display:none;margin:0 0 24px;background:var(--surface);border:1px solid var(--line);border-radius:12px;padding:0 18px;}
.toc-mobile summary{
  cursor:pointer;list-style:none;padding:16px 0;font-size:15px;font-weight:600;color:var(--ink);
  display:flex;align-items:center;justify-content:space-between;
}
.toc-mobile summary::-webkit-details-marker{display:none;}
.toc-mobile summary::after{content:"＋";color:var(--brand);font-size:16px;}
.toc-mobile[open] summary::after{content:"－";}
.toc-mobile .toc-links{padding-bottom:10px;}
.toc-mobile .toc-links a{display:block;padding:8px 0;font-size:14px;color:var(--ink-2);text-decoration:none;}
.toc-mobile .toc-links a:hover{color:var(--brand);}

/* ---------- author card ---------- */
.author-card{
  display:flex;gap:16px;align-items:flex-start;background:#F2F7FA;
  border:1px solid #E1ECF2;border-radius:12px;padding:20px 22px;margin:44px 0 0;
}
.author-avatar{
  width:46px;height:46px;border-radius:50%;background:var(--brand);color:#fff;
  display:flex;align-items:center;justify-content:center;font-size:15px;font-weight:600;flex-shrink:0;
}
.author-card h3{font-size:15px;font-weight:600;color:var(--ink);margin-bottom:6px;}
.author-card p{font-size:13.5px;line-height:1.8;color:var(--muted);}

/* ---------- related ---------- */
.related-sec{padding:64px 0 0;}
.sec-head{display:flex;align-items:center;gap:12px;margin-bottom:26px;}
.sec-bar{width:4px;height:18px;border-radius:2px;background:var(--brand);}
.sec-head h2{font-size:22px;font-weight:600;color:var(--ink);}
.sec-head .more{margin-left:auto;font-size:14px;color:var(--muted);text-decoration:none;transition:color .18s;}
.sec-head .more:hover{color:var(--brand);}
.related-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px;}
.rel-card{
  display:block;text-decoration:none;background:var(--surface);border:1px solid var(--line);
  border-radius:var(--radius-lg);overflow:hidden;box-shadow:var(--shadow-sm);
  transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.rel-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-lg);border-color:#D5E2EB;}
.rel-card img{width:100%;aspect-ratio:16/10;object-fit:cover;transition:transform .4s ease;}
.rel-card:hover img{transform:scale(1.03);}
.rel-body{padding:16px 18px 20px;}
.rel-body h4{font-size:15.5px;font-weight:600;line-height:1.55;color:var(--ink);margin:10px 0 8px;transition:color .18s;}
.rel-card:hover .rel-body h4{color:var(--brand);}
.rel-date{font-size:12.5px;color:var(--muted);font-variant-numeric:tabular-nums;}
.back-cat{margin-top:34px;}
.back-cat .btn-text{gap:8px;}

/* ---------- dark cta ---------- */
.dark-cta{
  background:var(--dark);border-radius:20px;padding:48px;color:#fff;
  display:flex;align-items:center;justify-content:space-between;gap:36px;flex-wrap:wrap;
  margin-top:80px;
}
.dark-cta h2{font-size:26px;font-weight:600;line-height:1.4;color:#fff;margin-bottom:10px;}
.dark-cta p{font-size:15px;line-height:1.8;color:rgba(255,255,255,.65);max-width:440px;}
.cta-form{display:flex;gap:12px;flex-wrap:wrap;}
.cta-form input{
  height:48px;width:264px;border-radius:10px;border:1px solid rgba(255,255,255,.18);
  background:rgba(255,255,255,.08);color:#fff;padding:0 16px;font-size:15px;
  transition:border-color .18s,background .18s;
}
.cta-form input::placeholder{color:rgba(255,255,255,.45);}
.cta-form input:focus{outline:none;border-color:var(--accent);background:rgba(255,255,255,.14);}
.cta-form .btn-primary{background:var(--accent);color:#2A2005;}
.cta-form .btn-primary:hover{background:#F0C463;}

/* ---------- footer ---------- */
.site-footer{background:var(--surface);border-top:1px solid var(--line);margin-top:96px;}
.footer-grid{display:grid;grid-template-columns:1.7fr 1fr 1fr 1.2fr;gap:40px;padding:58px 0 40px;}
.brand-name-footer{display:block;font-size:17px;font-weight:600;color:var(--ink);line-height:1;letter-spacing:.02em;}
.brand-sub-footer{display:block;font-size:11px;color:var(--muted);letter-spacing:.09em;margin-top:8px;}
.footer-about{font-size:14px;line-height:1.85;color:var(--muted);margin-top:14px;max-width:320px;}
.footer-title{font-size:14px;font-weight:600;color:var(--ink);margin-bottom:16px;}
.footer-list{display:flex;flex-direction:column;gap:11px;font-size:14px;color:var(--muted);}
.footer-list a{color:var(--muted);text-decoration:none;transition:color .18s;}
.footer-list a:hover{color:var(--brand);}
.footer-bottom{
  display:flex;justify-content:space-between;align-items:center;flex-wrap:wrap;gap:12px;
  padding:20px 0 30px;border-top:1px solid var(--line);font-size:13px;color:var(--muted);
}
.footer-bottom a{color:var(--muted);text-decoration:none;}
.footer-bottom a:hover{color:var(--brand);}

/* ---------- responsive ---------- */
@media (max-width:1023px){
  .nav-links{display:none;}
  .menu-toggle{display:inline-flex;}
  .header-actions{gap:8px;}
  .header-actions .btn-primary{display:none;}
  .article-grid{grid-template-columns:minmax(0,1fr);gap:0;padding-top:36px;}
  .article-side{display:none;}
  .toc-mobile{display:block;}
  .related-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;padding:44px 0 32px;}
  .dark-cta{padding:36px;}
  .site-footer{margin-top:72px;}
}
@media (max-width:639px){
  .shell{padding-left:20px;padding-right:20px;}
  .header-inner{height:56px;gap:14px;}
  .mobile-drawer{top:56px;}
  .brand-name{font-size:16px;}
  .brand-sub{font-size:10px;}
  .article-head h1{font-size:26px;line-height:1.36;}
  .lede{font-size:15px;}
  .prose{font-size:16px;line-height:1.85;}
  .prose h2{font-size:21px;}
  .prose h3{font-size:18px;}
  .cover img{border-radius:12px;}
  .related-grid{grid-template-columns:minmax(0,1fr);}
  .dark-cta{padding:28px 22px;border-radius:16px;margin-top:56px;gap:22px;}
  .dark-cta h2{font-size:21px;}
  .cta-form{width:100%;}
  .cta-form input{width:100%;}
  .cta-form .btn-primary{width:100%;}
  .footer-grid{grid-template-columns:1fr;gap:28px;}
  .footer-bottom{flex-direction:column;align-items:flex-start;}
  .breadcrumb{padding:20px 0 16px;}
  .breadcrumb .current{max-width:180px;}
  .author-card{padding:18px;}
}
@media (hover:none){
  .btn-primary:hover,.rel-card:hover,.btn-text:hover .arw{transform:none;}
  .rel-card:hover img{transform:none;}
}

/* roulang page: category2 */
:root{
  --brand:#1F4E68;
  --brand-dark:#173C52;
  --accent:#E8B449;
  --accent-soft:#FBF6E9;
  --bg:#F6F8FA;
  --surface:#FFFFFF;
  --ink:#16212B;
  --ink-2:#2C3A46;
  --muted:#6C7C8B;
  --line:#E2E9EF;
  --dark:#0F2233;
  --radius:16px;
  --radius-md:14px;
  --radius-sm:10px;
  --container:1200px;
  --shadow-sm:0 1px 2px rgba(16,33,46,.05);
  --shadow-md:0 6px 20px rgba(16,33,46,.07);
  --shadow-lg:0 14px 32px rgba(16,33,46,.10);
  --gap:24px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  padding:0;
  font-family:"PingFang SC","Hiragino Sans GB","Noto Sans SC","Microsoft YaHei",sans-serif;
  font-size:16px;
  line-height:1.8;
  color:var(--ink-2);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border-radius:var(--radius-md)}
a{color:inherit;text-decoration:none}
button{font-family:inherit;cursor:pointer;border:none;background:none}
input{font-family:inherit}
h1,h2,h3,h4,p,ul,ol,figure,blockquote{margin:0}
ul,ol{padding:0;list-style:none}
a:focus-visible,button:focus-visible,input:focus-visible{
  outline:2px solid var(--brand);
  outline-offset:2px;
  border-radius:6px;
}
.shell{
  width:100%;
  max-width:var(--container);
  margin:0 auto;
  padding:0 24px;
}
.num{font-variant-numeric:tabular-nums}

/* ---------- 顶部导航 ---------- */
.site-header{
  position:sticky;
  top:0;
  z-index:60;
  background:var(--surface);
  border-bottom:1px solid var(--line);
  transition:box-shadow .25s ease;
}
.site-header.is-scrolled{box-shadow:var(--shadow-sm)}
.header-inner{
  display:flex;
  align-items:center;
  gap:28px;
  height:64px;
}
.brand{
  display:flex;
  flex-direction:column;
  justify-content:center;
  line-height:1.15;
  flex-shrink:0;
}
.brand-name{
  font-size:17px;
  font-weight:600;
  color:var(--ink);
  letter-spacing:.5px;
}
.brand-sub{
  font-size:9px;
  letter-spacing:1.2px;
  color:var(--muted);
  margin-top:2px;
}
.nav-links{
  display:flex;
  align-items:center;
  gap:26px;
  margin-left:6px;
}
.nav-link{
  position:relative;
  font-size:15px;
  color:var(--ink-2);
  padding:6px 0;
  transition:color .2s ease;
  white-space:nowrap;
}
.nav-link::after{
  content:"";
  position:absolute;
  left:0;right:0;bottom:-2px;
  height:2px;
  border-radius:2px;
  background:var(--brand);
  transform:scaleX(0);
  transform-origin:left center;
  transition:transform .22s ease;
}
.nav-link:hover{color:var(--brand)}
.nav-link:hover::after{transform:scaleX(1)}
.nav-link.active{color:var(--brand);font-weight:600}
.nav-link.active::after{transform:scaleX(1)}
.header-actions{
  margin-left:auto;
  display:flex;
  align-items:center;
  gap:12px;
}
.icon-btn{
  width:36px;height:36px;
  display:inline-flex;align-items:center;justify-content:center;
  border-radius:10px;
  color:var(--ink-2);
  border:1px solid transparent;
  transition:background .2s ease,color .2s ease,border-color .2s ease;
}
.icon-btn:hover{background:#F0F5F8;color:var(--brand);border-color:var(--line)}
.menu-toggle{
  display:none;
  width:38px;height:38px;
  align-items:center;justify-content:center;
  border-radius:10px;
  border:1px solid var(--line);
  color:var(--ink);
}
.menu-toggle:hover{background:#F0F5F8}

/* 移动抽屉 */
.mobile-nav{
  position:fixed;
  left:0;right:0;top:56px;bottom:0;
  background:var(--surface);
  border-top:1px solid var(--line);
  padding:16px 20px 36px;
  display:none;
  flex-direction:column;
  gap:2px;
  overflow-y:auto;
  z-index:55;
}
body.nav-open .mobile-nav{display:flex}
.mobile-nav a.m-link{
  padding:14px 2px;
  font-size:16px;
  color:var(--ink-2);
  border-bottom:1px solid var(--line);
}
.mobile-nav a.m-link.active{color:var(--brand);font-weight:600}
.mobile-nav .btn{width:100%;justify-content:center;margin-top:20px}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  height:44px;
  padding:0 22px;
  border-radius:var(--radius-sm);
  font-size:15px;
  font-weight:500;
  border:1px solid transparent;
  transition:background .2s ease,color .2s ease,border-color .2s ease,box-shadow .2s ease,transform .2s ease;
}
.btn-primary{
  background:var(--brand);
  color:#fff;
  box-shadow:var(--shadow-sm);
}
.btn-primary:hover{background:var(--brand-dark);box-shadow:var(--shadow-md)}
.btn-primary:active{transform:translateY(0);box-shadow:var(--shadow-sm)}
.btn-ghost{
  background:transparent;
  border-color:#CFDAE3;
  color:var(--ink);
}
.btn-ghost:hover{border-color:var(--brand);background:#F0F5F8;color:var(--brand)}
.btn-sm{height:38px;padding:0 16px;font-size:14px;border-radius:9px}
.btn-lg{height:48px;padding:0 26px;font-size:16px}
@media (hover:hover){
  .btn:hover{transform:translateY(-1px)}
  .btn:active{transform:translateY(0)}
}

/* ---------- 文本链接与徽章 ---------- */
.text-link{
  display:inline-flex;
  align-items:center;
  gap:6px;
  font-size:15px;
  font-weight:500;
  color:var(--brand);
}
.text-link .arrow{transition:transform .2s ease;display:inline-block}
.text-link:hover{color:var(--brand-dark)}
.text-link:hover .arrow{transform:translateX(3px)}
.badge{
  display:inline-flex;
  align-items:center;
  height:26px;
  padding:0 12px;
  border-radius:999px;
  font-size:12px;
  letter-spacing:.4px;
  white-space:nowrap;
}
.badge-accent{background:var(--accent-soft);color:#2B4A5E;border:1px solid #EFDDAF;font-weight:600}
.badge-muted{background:#EEF3F6;color:var(--muted)}

/* ---------- 页头 ---------- */
.page-hero{
  background:linear-gradient(180deg,#F2F6F9 0%,var(--bg) 100%);
  padding:56px 0 48px;
  border-bottom:1px solid var(--line);
}
.page-hero-grid{
  display:grid;
  grid-template-columns:1.15fr .85fr;
  gap:48px;
  align-items:center;
}
.page-hero h1{
  font-size:38px;
  line-height:1.28;
  font-weight:600;
  color:var(--ink);
  letter-spacing:.5px;
  margin:16px 0 18px;
}
.page-hero .lead{
  font-size:16px;
  line-height:1.85;
  color:var(--ink-2);
  max-width:560px;
}
.page-hero .lead + .lead{margin-top:10px;color:var(--muted)}
.hero-actions{
  display:flex;
  flex-wrap:wrap;
  gap:12px;
  margin-top:26px;
}
.page-hero-media{
  position:relative;
}
.page-hero-media img{
  width:100%;
  aspect-ratio:4/3;
  object-fit:cover;
  border-radius:var(--radius);
  box-shadow:var(--shadow-md);
}
.page-hero-media figcaption{
  position:absolute;
  right:14px;
  bottom:14px;
  background:#fff;
  border-radius:12px;
  padding:10px 14px;
  box-shadow:var(--shadow-md);
}
.page-hero-media figcaption strong{
  display:block;
  font-size:13px;
  color:var(--ink);
  font-weight:600;
}
.page-hero-media figcaption span{
  display:block;
  font-size:11px;
  color:var(--muted);
  margin-top:2px;
}

/* ---------- 数据条 ---------- */
.stat-strip{
  background:var(--surface);
  border-bottom:1px solid var(--line);
}
.stat-strip-inner{
  display:grid;
  grid-template-columns:repeat(4,1fr);
  gap:20px;
  padding:26px 0;
}
.stat-item{position:relative;padding-left:20px}
.stat-item:first-child{padding-left:0}
.stat-item + .stat-item::before{
  content:"";
  position:absolute;
  left:0;top:6px;bottom:6px;
  width:1px;
  background:var(--line);
}
.stat-value{
  font-size:26px;
  font-weight:600;
  color:var(--ink);
  line-height:1.3;
  font-variant-numeric:tabular-nums;
}
.stat-value small{font-size:14px;font-weight:400;color:var(--muted);margin-left:4px}
.stat-label{font-size:12px;color:var(--muted);margin-top:4px}

/* ---------- 通用板块 ---------- */
.section{padding:80px 0}
.section-head{
  display:flex;
  align-items:flex-end;
  justify-content:space-between;
  gap:24px;
  margin-bottom:40px;
}
.section-title{
  position:relative;
  padding-left:14px;
  font-size:26px;
  font-weight:600;
  color:var(--ink);
  line-height:1.4;
}
.section-title::before{
  content:"";
  position:absolute;
  left:0;top:6px;
  width:4px;height:18px;
  border-radius:2px;
  background:var(--brand);
}
.section-desc{
  font-size:15px;
  color:var(--muted);
  margin-top:10px;
  padding-left:14px;
  max-width:640px;
}

/* ---------- 交替横条 ---------- */
.feature-list{margin-top:8px}
.feature-row{
  display:flex;
  align-items:center;
  gap:40px;
  padding:32px;
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--radius);
  box-shadow:var(--shadow-sm);
  transition:box-shadow .25s ease,border-color .25s ease,transform .25s ease;
}
.feature-row + .feature-row{margin-top:40px}
.feature-row:nth-child(even){flex-direction:row-reverse}
.feature-media{
  flex:0 0 33.333%;
  min-width:0;
}
.feature-media img{
  width:100%;
  aspect-ratio:16/9;
  object-fit:cover;
  border-radius:var(--radius-md);
}
.feature-body{
  flex:1 1 auto;
  min-width:0;
}
.feature-no{
  display:inline-block;
  font-size:20px;
  font-weight:600;
  color:var(--accent);
  letter-spacing:1px;
  font-variant-numeric:tabular-nums;
  margin-bottom:6px;
}
.feature-body h2{
  font-size:22px;
  font-weight:600;
  color:var(--ink);
  line-height:1.45;
  margin-bottom:12px;
}
.feature-body p{
  font-size:15px;
  line-height:1.85;
  color:var(--ink-2);
}
.feature-body p + p{margin-top:8px;color:var(--muted)}
.feature-body .text-link{margin-top:16px}
@media (hover:hover){
  .feature-row:hover{
    box-shadow:var(--shadow-lg);
    border-color:#D5E1E9;
    transform:translateY(-2px);
  }
}

/* ---------- 引用横幅 ---------- */
.quote-banner{
  margin:48px 0;
  background:#FBF6E9;
  border-left:4px solid var(--accent);
  border-radius:14px;
  padding:28px 32px;
}
.quote-banner p{
  font-size:17px;
  line-height:1.85;
  font-style:italic;
  color:#3B4A56;
}
.quote-banner span{
  display:block;
  margin-top:12px;
  font-size:13px;
  color:var(--muted);
  font-style:normal;
}

/* ---------- 说明双栏 ---------- */
.note-grid{
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:24px;
}
.note-card{
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--radius);
  padding:28px;
  box-shadow:var(--shadow-sm);
}
.note-card h3{
  font-size:18px;
  font-weight:600;
  color:var(--ink);
  margin-bottom:12px;
}
.note-card p{font-size:15px;line-height:1.85;color:var(--ink-2)}
.note-card ul{margin-top:14px}
.note-card li{
  position:relative;
  padding-left:18px;
  font-size:15px;
  line-height:1.9;
  color:var(--ink-2);
}
.note-card li + li{margin-top:8px}
.note-card li::before{
  content:"";
  position:absolute;
  left:0;top:12px;
  width:6px;height:6px;
  border-radius:50%;
  background:var(--accent);
}

/* ---------- FAQ ---------- */
.faq-list{max-width:880px}
.faq-item{
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:12px;
  overflow:hidden;
  transition:border-color .2s ease,box-shadow .2s ease;
}
.faq-item + .faq-item{margin-top:14px}
.faq-item.is-open{border-color:#C9D8E2;box-shadow:var(--shadow-sm)}
.faq-q{
  width:100%;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  padding:18px 22px;
  text-align:left;
  font-size:16px;
  font-weight:500;
  color:var(--ink);
  line-height:1.6;
}
.faq-q:hover{color:var(--brand)}
.faq-plus{
  flex:0 0 auto;
  width:22px;height:22px;
  position:relative;
  transition:transform .25s ease;
}
.faq-plus::before,.faq-plus::after{
  content:"";
  position:absolute;
  background:var(--brand);
  border-radius:2px;
}
.faq-plus::before{left:0;right:0;top:10px;height:2px}
.faq-plus::after{top:0;bottom:0;left:10px;width:2px}
.faq-item.is-open .faq-plus{transform:rotate(45deg)}
.faq-a{
  display:none;
  padding:0 22px 20px;
  font-size:15px;
  line-height:1.85;
  color:var(--ink-2);
  background:#FAFCFD;
}
.faq-item.is-open .faq-a{display:block}
.faq-a p + p{margin-top:10px}

/* ---------- 深色 CTA ---------- */
.cta-band{
  background:var(--dark);
  border-radius:20px;
  padding:48px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:36px;
}
.cta-band h2{
  font-size:26px;
  font-weight:600;
  color:#fff;
  line-height:1.45;
}
.cta-band p{
  font-size:15px;
  color:#A9BCCB;
  margin-top:10px;
  max-width:460px;
}
.inline-form{
  display:flex;
  gap:10px;
  flex-wrap:wrap;
  align-items:center;
}
.inline-form input{
  height:48px;
  width:260px;
  padding:0 16px;
  border-radius:var(--radius-sm);
  border:1px solid #2C4459;
  background:#16303F;
  color:#fff;
  font-size:15px;
}
.inline-form input::placeholder{color:#7E96A6}
.inline-form input:focus{
  border-color:var(--accent);
  outline:none;
  box-shadow:0 0 0 3px rgba(232,180,73,.22);
}
.inline-form .btn{
  height:48px;
  background:var(--accent);
  color:#243444;
  font-weight:600;
}
.inline-form .btn:hover{background:#F0C463}
.form-note{
  width:100%;
  font-size:12px;
  color:#8FA5B4;
  margin-top:2px;
}

/* ---------- 页脚 ---------- */
.site-footer{
  background:#fff;
  border-top:1px solid var(--line);
  margin-top:80px;
  padding:56px 0 28px;
}
.footer-grid{
  display:grid;
  grid-template-columns:1.4fr 1fr 1fr 1.2fr;
  gap:40px;
}
.footer-brand .brand-name{
  font-size:18px;
  font-weight:600;
  color:var(--ink);
  display:block;
}
.footer-brand .brand-sub{
  display:block;
  font-size:9px;
  letter-spacing:1.2px;
  color:var(--muted);
  margin-top:3px;
}
.footer-about{
  margin-top:14px;
  font-size:14px;
  line-height:1.85;
  color:var(--muted);
  max-width:280px;
}
.footer-title{
  font-size:14px;
  font-weight:600;
  color:var(--ink);
  margin-bottom:14px;
}
.footer-list{display:flex;flex-direction:column;gap:10px}
.footer-list a,.footer-list li{
  font-size:14px;
  color:var(--muted);
  transition:color .2s ease;
}
.footer-list a:hover{color:var(--brand)}
.footer-bottom{
  margin-top:44px;
  padding-top:20px;
  border-top:1px solid var(--line);
  display:flex;
  flex-wrap:wrap;
  justify-content:space-between;
  gap:10px;
  font-size:12.5px;
  color:var(--muted);
}
.footer-bottom a{color:var(--muted);text-decoration:underline;text-underline-offset:3px}
.footer-bottom a:hover{color:var(--brand)}

/* ---------- 响应式 ---------- */
@media (max-width:1024px){
  .nav-links,.header-actions .header-cta,.header-actions .icon-btn{display:none}
  .menu-toggle{display:inline-flex}
  .header-inner{height:56px;gap:16px}
  .page-hero{padding:40px 0 36px}
  .page-hero-grid{grid-template-columns:1fr;gap:28px}
  .page-hero h1{font-size:32px}
  .page-hero-media{order:-1}
  .page-hero-media img{aspect-ratio:16/9}
  .section{padding:64px 0}
  .feature-row{gap:28px;padding:24px}
  .feature-media{flex:0 0 40%}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
  .cta-band{flex-direction:column;align-items:flex-start;padding:36px}
  .footer-grid{gap:28px}
}
@media (max-width:768px){
  .stat-strip-inner{grid-template-columns:1fr 1fr;gap:20px 16px}
  .stat-item:nth-child(3){padding-left:0}
  .stat-item:nth-child(3)::before{display:none}
  .feature-row,
  .feature-row:nth-child(even){flex-direction:column;align-items:stretch;gap:20px}
  .feature-media{flex:0 0 auto}
  .feature-body h2{font-size:20px}
  .note-grid{grid-template-columns:1fr}
  .section-head{flex-direction:column;align-items:flex-start;gap:12px}
  .quote-banner{padding:22px}
  .quote-banner p{font-size:16px}
  .inline-form input{width:100%}
  .inline-form .btn{width:100%}
  .inline-form{width:100%}
  .cta-band h2{font-size:22px}
}
@media (max-width:520px){
  .shell{padding:0 20px}
  .page-hero h1{font-size:30px}
  .section{padding:56px 0}
  .section-title{font-size:22px}
  .feature-row{padding:18px}
  .stat-value{font-size:22px}
  .footer-grid{grid-template-columns:1fr}
  .footer-bottom{flex-direction:column}
  .btn{width:100%}
  .hero-actions .btn{width:100%}
  .text-link{font-size:14px}
}

/* roulang page: category1 */
:root{
    --brand:#1F4E68;
    --brand-dark:#173C52;
    --accent:#E8B449;
    --accent-soft:#FBF1D8;
    --bg:#F6F8FA;
    --surface:#FFFFFF;
    --ink:#16212B;
    --ink-2:#2C3A46;
    --muted:#6C7C8B;
    --line:#E2E9EF;
    --dark:#0F2233;
    --radius-card:16px;
    --radius-btn:10px;
    --radius-pill:999px;
    --shadow-sm:0 1px 2px rgba(16,33,46,.05);
    --shadow-md:0 6px 20px rgba(16,33,46,.07);
    --shadow-lg:0 14px 32px rgba(16,33,46,.10);
    --container:1200px;
    --font-cn:"PingFang SC","Hiragino Sans GB","Noto Sans SC","Microsoft YaHei",sans-serif;
  }

  *,*::before,*::after{box-sizing:border-box;}
  html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
  body{
    margin:0;
    font-family:var(--font-cn);
    background:var(--bg);
    color:var(--ink-2);
    font-size:16px;
    line-height:1.75;
    -webkit-font-smoothing:antialiased;
  }
  h1,h2,h3,h4{margin:0;color:var(--ink);font-weight:600;line-height:1.3;}
  p{margin:0;}
  a{color:inherit;text-decoration:none;}
  img{display:block;max-width:100%;}
  button{font-family:inherit;cursor:pointer;}
  ul,ol{margin:0;padding:0;list-style:none;}
  ::selection{background:var(--accent-soft);color:var(--brand);}
  :focus-visible{outline:2px solid var(--brand);outline-offset:2px;border-radius:6px;}

  .shell{width:100%;max-width:var(--container);margin:0 auto;padding:0 24px;}
  .num{font-variant-numeric:tabular-nums;}

  /* ---------- 导航 ---------- */
  .site-header{
    position:sticky;top:0;z-index:80;
    background:var(--surface);
    border-bottom:1px solid var(--line);
    transition:box-shadow .25s ease;
  }
  .site-header.is-scrolled{box-shadow:0 4px 18px rgba(16,33,46,.08);}
  .nav-inner{display:flex;align-items:center;gap:26px;height:64px;}
  .brand{display:flex;flex-direction:column;justify-content:center;line-height:1.1;flex-shrink:0;}
  .brand-name{font-size:17px;font-weight:600;color:var(--ink);letter-spacing:.02em;}
  .brand-sub{font-size:8px;letter-spacing:.2em;color:var(--muted);margin-top:4px;text-transform:none;}
  .nav-links{display:flex;align-items:center;gap:2px;}
  .nav-link{
    position:relative;
    display:inline-block;
    padding:9px 12px;
    font-size:15px;
    color:var(--ink-2);
    border-radius:8px;
    transition:color .2s ease,background-color .2s ease;
  }
  .nav-link::after{
    content:"";position:absolute;left:12px;right:12px;bottom:3px;height:2px;
    background:var(--brand);border-radius:2px;
    transform:scaleX(0);transform-origin:left;transition:transform .22s ease;
  }
  .nav-link:hover{color:var(--brand);background:#F3F7FA;}
  .nav-link:hover::after{transform:scaleX(1);}
  .nav-link.active{color:var(--brand);font-weight:600;}
  .nav-link.active::after{transform:scaleX(1);}
  .nav-actions{margin-left:auto;display:flex;align-items:center;gap:10px;}
  .icon-btn{
    width:38px;height:38px;display:grid;place-items:center;
    background:var(--surface);border:1px solid var(--line);border-radius:10px;
    color:var(--ink-2);
    transition:border-color .2s ease,color .2s ease,background-color .2s ease,transform .2s ease;
  }
  .icon-btn:hover{border-color:var(--brand);color:var(--brand);background:#F0F5F8;transform:translateY(-1px);}
  .icon-btn:active{transform:translateY(0);}
  .menu-toggle{display:none;width:38px;height:38px;place-items:center;background:var(--surface);border:1px solid var(--line);border-radius:10px;color:var(--ink);}
  .menu-toggle:hover{border-color:var(--brand);color:var(--brand);}
  .mobile-drawer{
    display:none;
    position:absolute;left:0;right:0;top:100%;
    background:var(--surface);
    border-bottom:1px solid var(--line);
    box-shadow:var(--shadow-md);
    padding:10px 24px 22px;
  }
  .mobile-drawer.open{display:block;}
  .drawer-link{
    display:block;padding:13px 2px;font-size:15px;color:var(--ink-2);
    border-bottom:1px solid var(--line);
  }
  .drawer-link.active{color:var(--brand);font-weight:600;}
  .drawer-cta{margin-top:18px;}

  /* ---------- 按钮 ---------- */
  .btn{
    display:inline-flex;align-items:center;justify-content:center;gap:8px;
    padding:11px 22px;font-size:15px;font-weight:500;line-height:1.4;
    border-radius:var(--radius-btn);border:1px solid transparent;
    transition:background-color .2s ease,color .2s ease,border-color .2s ease,box-shadow .2s ease,transform .2s ease;
  }
  .btn-primary{background:var(--brand);color:#fff;box-shadow:var(--shadow-sm);}
  .btn-primary:hover{background:var(--brand-dark);transform:translateY(-1px);box-shadow:var(--shadow-md);}
  .btn-primary:active{transform:translateY(0);box-shadow:var(--shadow-sm);}
  .btn-ghost{background:transparent;border-color:#CFDAE3;color:var(--ink);}
  .btn-ghost:hover{border-color:var(--brand);background:#F0F5F8;color:var(--brand);}
  .btn-ghost:active{background:#E7EFF4;}
  .btn-light{background:#fff;color:var(--brand);}
  .btn-light:hover{background:#EAF1F5;transform:translateY(-1px);box-shadow:var(--shadow-md);}
  .btn-sm{padding:8px 16px;font-size:14px;}
  .btn-lg{padding:13px 26px;font-size:16px;}
  .btn-block{width:100%;}

  /* ---------- 通用板块 ---------- */
  .section{padding:96px 0;}
  .section-tight{padding:56px 0 0;}
  .sec-head{display:flex;align-items:flex-end;justify-content:space-between;gap:20px;margin-bottom:36px;flex-wrap:wrap;}
  .sec-title{display:flex;align-items:center;gap:10px;font-size:24px;letter-spacing:.01em;}
  .sec-title::before{content:"";width:4px;height:18px;border-radius:var(--radius-pill);background:var(--brand);display:block;flex-shrink:0;}
  .sec-sub{font-size:15px;color:var(--muted);margin-top:10px;}
  .sec-more{font-size:14px;color:var(--brand);display:inline-flex;align-items:center;gap:6px;transition:gap .2s ease,color .2s ease;}
  .sec-more:hover{gap:10px;color:var(--brand-dark);}

  .eyebrow{
    display:inline-flex;align-items:center;gap:7px;
    background:var(--accent-soft);color:var(--brand);
    font-size:13px;font-weight:500;padding:6px 13px;border-radius:var(--radius-pill);
  }
  .eyebrow .dot{width:6px;height:6px;border-radius:50%;background:var(--accent);display:block;}

  /* ---------- 页头 ---------- */
  .page-head{padding:52px 0 0;}
  .head-grid{display:grid;grid-template-columns:1.4fr .6fr;gap:52px;align-items:center;}
  .head-title{font-size:clamp(30px,3.4vw,38px);line-height:1.25;margin:18px 0 16px;letter-spacing:.01em;}
  .head-lead{font-size:16px;color:var(--ink-2);line-height:1.9;max-width:600px;}
  .head-count{
    display:inline-flex;align-items:center;gap:10px;margin-top:22px;
    background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-pill);
    padding:8px 16px;font-size:13px;color:var(--muted);box-shadow:var(--shadow-sm);
  }
  .head-count strong{color:var(--ink);font-weight:600;font-size:14px;}
  .head-media{position:relative;}
  .head-media img{width:100%;aspect-ratio:4/3;object-fit:cover;border-radius:var(--radius-card);box-shadow:var(--shadow-md);}
  .head-media .floating{
    position:absolute;right:-14px;bottom:-18px;background:var(--surface);
    border:1px solid var(--line);border-radius:12px;padding:12px 16px;
    box-shadow:var(--shadow-md);max-width:220px;
  }
  .floating .f-title{font-size:13px;font-weight:600;color:var(--ink);}
  .floating .f-desc{font-size:12px;color:var(--muted);margin-top:3px;line-height:1.6;}

  /* ---------- 数据条 ---------- */
  .stat-band{
    margin-top:56px;
    display:grid;grid-template-columns:repeat(4,1fr);
    background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-card);
    box-shadow:var(--shadow-sm);overflow:hidden;
  }
  .stat-cell{padding:26px 24px;border-right:1px solid var(--line);}
  .stat-cell:last-child{border-right:0;}
  .stat-num{font-size:28px;font-weight:600;color:var(--ink);line-height:1.2;}
  .stat-num span{font-size:14px;font-weight:500;color:var(--muted);margin-left:4px;}
  .stat-label{font-size:12.5px;color:var(--muted);margin-top:6px;letter-spacing:.02em;}

  /* ---------- 作品卡 ---------- */
  .work-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:28px;}
  .work-card{
    background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-card);
    overflow:hidden;box-shadow:var(--shadow-sm);
    transition:transform .25s ease,box-shadow .25s ease,border-color .25s ease;
    display:flex;flex-direction:column;
  }
  .work-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-lg);border-color:#D3DFE8;}
  .work-thumb{position:relative;aspect-ratio:16/9;overflow:hidden;background:#DCE5EC;}
  .work-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .5s ease;}
  .work-card:hover .work-thumb img{transform:scale(1.04);}
  .badge{
    position:absolute;left:14px;top:14px;
    background:var(--accent-soft);color:var(--brand);
    font-size:12px;font-weight:500;padding:5px 11px;border-radius:var(--radius-pill);
    backdrop-filter:saturate(120%);
  }
  .work-body{padding:22px 24px 24px;display:flex;flex-direction:column;gap:10px;flex:1;}
  .work-title{font-size:19px;line-height:1.45;}
  .work-desc{
    font-size:15px;color:var(--muted);line-height:1.8;
    display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
  }
  .work-foot{
    display:flex;align-items:center;justify-content:space-between;gap:12px;
    margin-top:auto;padding-top:14px;border-top:1px solid var(--line);
  }
  .work-meta{font-size:12.5px;color:var(--muted);}
  .arrow-link{display:inline-flex;align-items:center;gap:6px;font-size:14px;color:var(--brand);transition:gap .2s ease;}
  .work-card:hover .arrow-link{gap:10px;}

  .more-wrap{display:flex;justify-content:center;margin-top:44px;}

  /* ---------- 观剧指引 ---------- */
  .guide-wrap{display:grid;grid-template-columns:.9fr 1.1fr;gap:56px;align-items:start;}
  .guide-lead h2{font-size:26px;margin-bottom:16px;}
  .guide-lead p{font-size:16px;color:var(--ink-2);line-height:1.95;margin-bottom:14px;}
  .guide-list{display:flex;flex-direction:column;gap:8px;}
  .guide-item{
    display:grid;grid-template-columns:52px 1fr;gap:18px;align-items:start;
    padding:22px 24px;background:var(--surface);border:1px solid var(--line);
    border-radius:var(--radius-card);transition:box-shadow .25s ease,transform .25s ease;
  }
  .guide-item:hover{box-shadow:var(--shadow-md);transform:translateY(-2px);}
  .guide-num{font-size:24px;font-weight:600;color:var(--accent);line-height:1;}
  .guide-item h3{font-size:17px;margin-bottom:6px;}
  .guide-item p{font-size:15px;color:var(--muted);line-height:1.8;}

  /* ---------- FAQ ---------- */
  .faq-wrap{max-width:880px;}
  .faq-item{
    background:var(--surface);border:1px solid var(--line);border-radius:12px;
    margin-bottom:12px;overflow:hidden;transition:box-shadow .2s ease,border-color .2s ease;
  }
  .faq-item:hover{border-color:#D3DFE8;}
  .faq-item.open{box-shadow:var(--shadow-sm);}
  .faq-q{
    width:100%;display:flex;align-items:center;justify-content:space-between;gap:18px;
    padding:18px 22px;background:none;border:0;text-align:left;
    font-size:16px;font-weight:500;color:var(--ink);line-height:1.6;
  }
  .faq-q:hover{color:var(--brand);}
  .faq-icon{flex-shrink:0;color:var(--brand);transition:transform .25s ease;}
  .faq-item.open .faq-icon{transform:rotate(45deg);}
  .faq-a{
    display:none;padding:0 22px 20px;font-size:15px;line-height:1.85;
    color:var(--ink-2);background:#FAFCFD;
  }
  .faq-item.open .faq-a{display:block;}

  /* ---------- 深色 CTA ---------- */
  .cta-section{padding:0 0 96px;}
  .cta-band{
    background:var(--dark);border-radius:20px;padding:48px;
    display:grid;grid-template-columns:1.1fr .9fr;gap:40px;align-items:center;
    color:#fff;
  }
  .cta-band h2{color:#fff;font-size:26px;line-height:1.4;margin-bottom:12px;}
  .cta-band p{font-size:15px;color:#B9C8D5;line-height:1.85;max-width:460px;}
  .cta-form{display:flex;gap:10px;flex-wrap:wrap;}
  .cta-form input{
    flex:1 1 210px;min-width:0;
    padding:12px 16px;font-size:15px;color:#fff;
    background:rgba(255,255,255,.08);
    border:1px solid rgba(255,255,255,.18);
    border-radius:var(--radius-btn);
    transition:border-color .2s ease,background-color .2s ease;
  }
  .cta-form input::placeholder{color:#94A9BA;}
  .cta-form input:focus{outline:none;border-color:var(--accent);background:rgba(255,255,255,.12);}
  .cta-hint{font-size:12.5px;color:#8FA5B7;margin-top:12px;}

  /* ---------- 页脚 ---------- */
  .site-footer{background:var(--surface);border-top:1px solid var(--line);padding-top:64px;}
  .footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.2fr;gap:40px;padding-bottom:48px;}
  .footer-brand .brand-name{font-size:16px;}
  .footer-about{font-size:14px;color:var(--muted);line-height:1.85;margin-top:14px;max-width:320px;}
  .footer-title{font-size:14px;font-weight:600;color:var(--ink);margin-bottom:16px;}
  .footer-list a,.footer-list li{display:block;font-size:14px;color:var(--muted);padding:5px 0;transition:color .2s ease;}
  .footer-list a:hover{color:var(--brand);}
  .footer-bottom{
    border-top:1px solid var(--line);
    padding:20px 0 28px;
    display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
    font-size:13px;color:var(--muted);
  }
  .footer-bottom a{color:var(--brand);}
  .footer-bottom a:hover{text-decoration:underline;}

  /* ---------- 响应式 ---------- */
  @media (max-width:1023px){
    .nav-links{display:none;}
    .menu-toggle{display:grid;}
    .nav-actions .btn-sm{display:none;}
    .nav-inner{height:56px;gap:16px;}
    .section{padding:72px 0;}
    .cta-section{padding-bottom:72px;}
    .head-grid{grid-template-columns:1fr;gap:32px;}
    .head-media{order:-1;}
    .head-media .floating{right:8px;bottom:-14px;}
    .stat-band{grid-template-columns:repeat(2,1fr);margin-top:40px;}
    .stat-cell:nth-child(2){border-right:0;}
    .stat-cell:nth-child(1),.stat-cell:nth-child(2){border-bottom:1px solid var(--line);}
    .guide-wrap{grid-template-columns:1fr;gap:32px;}
    .cta-band{grid-template-columns:1fr;padding:36px;gap:26px;}
    .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
  }
  @media (min-width:1024px){
    .mobile-drawer{display:none !important;}
  }
  @media (max-width:767px){
    .work-grid{grid-template-columns:1fr;gap:22px;}
    .head-title{font-size:30px;}
    .sec-title{font-size:21px;}
    .cta-band{padding:28px;border-radius:16px;}
    .cta-band h2{font-size:22px;}
    .footer-grid{grid-template-columns:1fr;gap:28px;padding-bottom:32px;}
    .footer-bottom{flex-direction:column;align-items:flex-start;}
  }
  @media (max-width:519px){
    .shell{padding:0 20px;}
    .mobile-drawer{padding:10px 20px 20px;}
    .stat-cell{padding:20px 18px;}
    .stat-num{font-size:24px;}
    .work-body{padding:18px 18px 20px;}
    .work-title{font-size:17px;}
    .guide-item{grid-template-columns:1fr;gap:10px;padding:20px;}
    .cta-form{flex-direction:column;}
    .cta-form .btn{width:100%;}
  }
  @media (hover:none){
    .work-card:hover{transform:none;}
    .work-card:hover .work-thumb img{transform:none;}
    .guide-item:hover{transform:none;}
    .btn:hover{transform:none;}
  }

/* roulang page: category3 */
:root{
    --brand:#1F4E68;
    --brand-dark:#173C52;
    --accent:#E8B449;
    --accent-soft:#FBEFD2;
    --bg:#F6F8FA;
    --surface:#FFFFFF;
    --ink:#16212B;
    --ink-2:#2C3A46;
    --muted:#6C7C8B;
    --line:#E2E9EF;
    --line-strong:#CFDAE3;
    --dark:#0F2233;
    --radius-card:16px;
    --radius-btn:10px;
    --radius-pill:999px;
    --shadow-sm:0 1px 2px rgba(16,33,46,.05);
    --shadow-md:0 6px 20px rgba(16,33,46,.07);
    --shadow-lg:0 14px 32px rgba(16,33,46,.10);
    --shell:1200px;
    --font-cn:"PingFang SC","Hiragino Sans GB","Noto Sans SC","Microsoft YaHei",sans-serif;
  }

  *,*::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:1.75;
    color:var(--ink-2);
    background:var(--bg);
    -webkit-font-smoothing:antialiased;
  }
  h1,h2,h3,h4{margin:0;color:var(--ink);font-weight:600;line-height:1.35;}
  p{margin:0;}
  ul,ol{margin:0;padding:0;list-style:none;}
  img{display:block;max-width:100%;height:auto;}
  a{color:inherit;text-decoration:none;transition:color .18s ease,border-color .18s ease,background-color .18s ease;}
  button{font-family:inherit;font-size:inherit;cursor:pointer;border:0;background:none;color:inherit;}
  input{font-family:inherit;font-size:inherit;}
  table{border-collapse:collapse;}
  :focus-visible{outline:2px solid var(--brand);outline-offset:2px;border-radius:4px;}
  .num{font-variant-numeric:tabular-nums;}

  .shell{width:100%;max-width:var(--shell);margin:0 auto;padding:0 24px;}

  .skip-link{
    position:absolute;left:-9999px;top:0;z-index:200;
    background:var(--brand);color:#fff;padding:10px 18px;border-radius:0 0 10px 0;
  }
  .skip-link:focus{left:0;}

  /* ============ 按钮 ============ */
  .btn{
    display:inline-flex;align-items:center;justify-content:center;gap:8px;
    border-radius:var(--radius-btn);
    padding:12px 22px;
    font-size:15px;font-weight:600;line-height:1;
    border:1px solid transparent;
    transition:transform .18s ease,box-shadow .18s ease,background-color .18s ease,border-color .18s ease,color .18s ease;
    white-space:nowrap;
  }
  .btn-primary{background:var(--brand);color:#fff;box-shadow:var(--shadow-sm);}
  .btn-primary:hover{background:var(--brand-dark);transform:translateY(-1px);box-shadow:var(--shadow-md);}
  .btn-primary:active{transform:translateY(0);box-shadow:var(--shadow-sm);}
  .btn-ghost{background:transparent;color:var(--ink);border-color:var(--line-strong);}
  .btn-ghost:hover{border-color:var(--brand);background:#F0F5F8;color:var(--brand);}
  .btn-sm{padding:9px 16px;font-size:14px;}
  .btn-block{width:100%;}
  .btn .arrow{transition:transform .18s ease;display:inline-block;}
  .btn:hover .arrow{transform:translateX(3px);}
  .link-more{
    display:inline-flex;align-items:center;gap:6px;
    color:var(--brand);font-weight:600;font-size:15px;
  }
  .link-more .arrow{transition:transform .18s ease;}
  .link-more:hover{color:var(--brand-dark);}
  .link-more:hover .arrow{transform:translateX(3px);}

  /* ============ 徽章与标签 ============ */
  .badge{
    display:inline-flex;align-items:center;gap:6px;
    background:var(--accent-soft);color:var(--brand);
    border-radius:var(--radius-pill);
    padding:4px 12px;font-size:12px;font-weight:600;letter-spacing:.02em;
  }
  .badge-gray{background:#EDF2F6;color:var(--muted);font-weight:500;}
  .tag{
    display:inline-flex;align-items:center;
    border-radius:var(--radius-pill);
    padding:3px 10px;font-size:12px;
    background:#F1F5F8;color:var(--muted);
    border:1px solid transparent;
    transition:background-color .18s ease,color .18s ease;
  }
  .tag:hover{background:#E8EFF4;color:var(--brand);}

  /* ============ 导航 ============ */
  .site-header{
    position:sticky;top:0;z-index:100;
    background:rgba(255,255,255,.97);
    border-bottom:1px solid var(--line);
    backdrop-filter:saturate(180%) blur(6px);
    transition:box-shadow .2s ease;
  }
  .site-header.is-scrolled{box-shadow:var(--shadow-md);}
  .header-inner{display:flex;align-items:center;justify-content:space-between;gap:28px;height:64px;}

  .header-left{display:flex;align-items:center;gap:34px;min-width:0;}
  .brand{display:inline-flex;align-items:baseline;gap:8px;flex-shrink:0;}
  .brand-main{font-size:19px;font-weight:700;color:var(--ink);letter-spacing:.02em;}
  .brand-tag{
    font-size:10px;font-weight:600;color:var(--brand);
    background:var(--accent-soft);
    border-radius:var(--radius-pill);
    padding:2px 8px;letter-spacing:.04em;line-height:1.5;
  }
  .brand:hover .brand-main{color:var(--brand);}

  .nav-links{display:flex;align-items:center;gap:26px;}
  .nav-link{
    position:relative;
    font-size:15px;font-weight:500;color:var(--ink-2);
    padding:6px 0;line-height:1.6;
  }
  .nav-link::after{
    content:"";position:absolute;left:0;right:0;bottom:0;height:2px;
    background:var(--brand);border-radius:2px;
    transform:scaleX(0);transform-origin:left;
    transition:transform .2s ease;
  }
  .nav-link:hover{color:var(--brand);}
  .nav-link:hover::after{transform:scaleX(1);}
  .nav-link.active{color:var(--brand);font-weight:600;}
  .nav-link.active::after{transform:scaleX(1);}

  .header-right{display:flex;align-items:center;gap:14px;flex-shrink:0;}
  .icon-btn{
    width:38px;height:38px;border-radius:10px;
    display:inline-flex;align-items:center;justify-content:center;
    color:var(--muted);border:1px solid transparent;
    transition:background-color .18s ease,color .18s ease,border-color .18s ease;
  }
  .icon-btn:hover{background:#F0F5F8;color:var(--brand);border-color:var(--line);}
  .menu-btn{display:none;width:40px;height:40px;border-radius:10px;align-items:center;justify-content:center;color:var(--ink);border:1px solid var(--line);}
  .menu-btn:hover{background:#F0F5F8;color:var(--brand);}

  .mobile-drawer{
    display:none;
    border-top:1px solid var(--line);
    background:#fff;
    padding:14px 0 22px;
  }
  .mobile-drawer.is-open{display:block;}
  .mobile-drawer .drawer-link{
    display:block;padding:12px 4px;font-size:16px;color:var(--ink-2);
    border-bottom:1px solid var(--line);
  }
  .mobile-drawer .drawer-link.active{color:var(--brand);font-weight:600;}
  .mobile-drawer .btn{margin-top:16px;}

  /* ============ 页头 ============ */
  .page-hero{background:var(--surface);border-bottom:1px solid var(--line);padding:52px 0 44px;}
  .page-hero-grid{display:flex;align-items:flex-start;justify-content:space-between;gap:40px;}
  .page-hero-main{max-width:720px;}
  .page-hero h1{font-size:38px;letter-spacing:.01em;margin-bottom:16px;}
  .page-hero .lede{font-size:16px;color:var(--ink-2);line-height:1.9;max-width:640px;}
  .page-hero .count{margin-top:18px;font-size:13px;color:var(--muted);display:flex;align-items:center;gap:10px;}
  .page-hero .count .dot{width:5px;height:5px;border-radius:50%;background:var(--line-strong);}
  .crumb{display:flex;align-items:center;gap:8px;font-size:13px;color:var(--muted);margin-bottom:18px;flex-wrap:wrap;}
  .crumb a:hover{color:var(--brand);}
  .crumb .sep{color:var(--line-strong);}

  .time-filter{display:flex;flex-direction:column;gap:8px;min-width:132px;padding-top:6px;}
  .time-filter .tf-label{font-size:12px;color:var(--muted);letter-spacing:.08em;margin-bottom:2px;}
  .tf-item{
    display:flex;align-items:center;justify-content:space-between;gap:10px;
    padding:9px 14px;border-radius:var(--radius-pill);
    font-size:14px;color:var(--muted);
    border:1px solid var(--line);background:#fff;
    transition:background-color .18s ease,color .18s ease,border-color .18s ease;
  }
  .tf-item span.n{font-size:12px;color:var(--line-strong);font-variant-numeric:tabular-nums;}
  .tf-item:hover{border-color:var(--line-strong);color:var(--brand);}
  .tf-item.is-active{background:var(--brand);border-color:var(--brand);color:#fff;font-weight:600;}
  .tf-item.is-active span.n{color:rgba(255,255,255,.7);}

  /* ============ 通用板块 ============ */
  .section{padding:72px 0;}
  .section-tight{padding:48px 0;}
  .sec-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:32px;}
  .sec-title{position:relative;padding-left:16px;font-size:26px;line-height:1.4;}
  .sec-title::before{
    content:"";position:absolute;left:0;top:50%;transform:translateY(-50%);
    width:4px;height:18px;border-radius:2px;background:var(--brand);
  }
  .sec-desc{margin-top:10px;font-size:15px;color:var(--muted);max-width:620px;line-height:1.85;}

  /* ============ 本期聚焦 ============ */
  .focus-card{
    display:grid;grid-template-columns:1.05fr .95fr;
    gap:0;background:var(--surface);
    border:1px solid var(--line);
    border-radius:var(--radius-card);
    overflow:hidden;
    box-shadow:var(--shadow-sm);
    transition:box-shadow .2s ease,transform .2s ease;
  }
  .focus-card:hover{box-shadow:var(--shadow-md);}
  .focus-media{position:relative;min-height:280px;overflow:hidden;}
  .focus-media img{width:100%;height:100%;object-fit:cover;transition:transform .5s ease;}
  .focus-card:hover .focus-media img{transform:scale(1.03);}
  .focus-media .focus-badge{
    position:absolute;left:18px;top:18px;
    background:rgba(255,255,255,.94);color:var(--brand);
    font-size:12px;font-weight:600;border-radius:var(--radius-pill);padding:5px 12px;
  }
  .focus-body{padding:36px 38px;display:flex;flex-direction:column;justify-content:center;gap:16px;}
  .focus-body h3{font-size:24px;line-height:1.45;}
  .focus-body p{font-size:15px;color:var(--ink-2);line-height:1.9;}
  .focus-meta{display:flex;align-items:center;gap:10px;font-size:13px;color:var(--muted);flex-wrap:wrap;}
  .focus-meta .dot{width:4px;height:4px;border-radius:50%;background:var(--line-strong);}

  /* ============ 观察列表 ============ */
  .obs-list{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-card);overflow:hidden;box-shadow:var(--shadow-sm);}
  .obs-row{
    display:grid;grid-template-columns:96px 1fr 28px;
    gap:28px;align-items:flex-start;
    padding:26px 30px;
    border-bottom:1px solid var(--line);
    transition:background-color .18s ease;
  }
  .obs-row:last-child{border-bottom:0;}
  .obs-row:hover{background:#FAFCFD;}
  .obs-date{display:flex;flex-direction:column;line-height:1.2;padding-top:2px;}
  .obs-date .d{font-size:24px;font-weight:600;color:var(--brand);font-variant-numeric:tabular-nums;letter-spacing:.01em;}
  .obs-date .m{font-size:12px;color:var(--muted);margin-top:6px;font-variant-numeric:tabular-nums;letter-spacing:.04em;}
  .obs-title{font-size:18px;line-height:1.55;margin-bottom:8px;}
  .obs-title a:hover{color:var(--brand);}
  .obs-desc{
    font-size:15px;color:var(--muted);line-height:1.85;
    display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
  }
  .obs-tags{display:flex;flex-wrap:wrap;gap:8px;margin-top:12px;}
  .obs-arrow{
    align-self:center;color:var(--line-strong);font-size:18px;
    transition:transform .18s ease,color .18s ease;
  }
  .obs-row:hover .obs-arrow{transform:translateX(3px);color:var(--brand);}
  .list-more{display:flex;justify-content:center;margin-top:32px;}

  /* ============ 关注要点 ============ */
  .angles{
    display:grid;grid-template-columns:repeat(2,1fr);gap:0;
    background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-card);
    overflow:hidden;box-shadow:var(--shadow-sm);
  }
  .angle-item{padding:30px 32px;border-right:1px solid var(--line);border-bottom:1px solid var(--line);}
  .angle-item:nth-child(2n){border-right:0;}
  .angle-item:nth-last-child(-n+2){border-bottom:0;}
  .angle-num{font-size:20px;font-weight:600;color:var(--accent);font-variant-numeric:tabular-nums;letter-spacing:.04em;}
  .angle-item h3{font-size:17px;margin:8px 0 8px;}
  .angle-item p{font-size:14.5px;color:var(--muted);line-height:1.85;}

  /* ============ 引用横幅 ============ */
  .quote-band{
    background:#EEF3F7;
    border-left:3px solid var(--brand);
    border-radius:12px;
    padding:28px 32px;
    display:flex;gap:20px;align-items:flex-start;
  }
  .quote-band .qmark{font-size:30px;line-height:1;color:var(--brand);opacity:.45;font-family:Georgia,serif;}
  .quote-band p{font-size:16px;color:var(--ink-2);line-height:1.9;font-style:italic;}
  .quote-band .qsrc{margin-top:10px;font-size:13px;color:var(--muted);font-style:normal;}

  /* ============ FAQ ============ */
  .faq-list{display:flex;flex-direction:column;gap:12px;}
  .faq-item{
    background:var(--surface);border:1px solid var(--line);border-radius:12px;
    overflow:hidden;transition:border-color .18s ease,box-shadow .18s ease;
  }
  .faq-item[open]{border-color:#C9D8E2;box-shadow:var(--shadow-sm);}
  .faq-item summary{
    list-style:none;cursor:pointer;
    display:flex;align-items:center;justify-content:space-between;gap:20px;
    padding:18px 22px;font-size:16px;font-weight:500;color:var(--ink);
  }
  .faq-item summary::-webkit-details-marker{display:none;}
  .faq-item summary:hover{color:var(--brand);}
  .faq-item .plus{
    width:22px;height:22px;flex-shrink:0;position:relative;
    transition:transform .22s ease;color:var(--brand);
  }
  .faq-item .plus::before,
  .faq-item .plus::after{
    content:"";position:absolute;left:50%;top:50%;background:currentColor;border-radius:2px;
    transform:translate(-50%,-50%);
  }
  .faq-item .plus::before{width:14px;height:2px;}
  .faq-item .plus::after{width:2px;height:14px;}
  .faq-item[open] .plus{transform:rotate(45deg);}
  .faq-answer{padding:0 22px 20px;font-size:15px;line-height:1.85;color:var(--muted);background:#FAFCFD;border-top:1px solid var(--line);padding-top:16px;margin-top:0;}

  /* ============ 深色 CTA ============ */
  .cta-band{
    background:var(--dark);
    border-radius:20px;
    padding:48px;
    display:flex;align-items:center;justify-content:space-between;gap:40px;
    color:#fff;
  }
  .cta-band h2{color:#fff;font-size:26px;line-height:1.45;margin-bottom:10px;}
  .cta-band p{font-size:15px;color:rgba(255,255,255,.72);line-height:1.85;max-width:440px;}
  .cta-form{display:flex;gap:12px;flex-shrink:0;}
  .cta-form input{
    width:260px;padding:12px 16px;border-radius:var(--radius-btn);
    border:1px solid rgba(255,255,255,.18);
    background:rgba(255,255,255,.07);color:#fff;
    transition:border-color .18s ease,background-color .18s ease;
  }
  .cta-form input::placeholder{color:rgba(255,255,255,.45);}
  .cta-form input:focus{outline:none;border-color:var(--accent);background:rgba(255,255,255,.12);}
  .cta-form .btn-primary{background:var(--accent);color:#3B2A06;}
  .cta-form .btn-primary:hover{background:#F2C563;color:#3B2A06;}
  .cta-note{margin-top:14px;font-size:12px;color:rgba(255,255,255,.45);}

  /* ============ 页脚 ============ */
  .site-footer{background:var(--surface);border-top:1px solid var(--line);margin-top:72px;padding:56px 0 28px;}
  .footer-grid{display:grid;grid-template-columns:1.7fr 1fr 1fr 1.2fr;gap:36px;}
  .footer-brand .brand-name{display:block;font-size:18px;font-weight:700;color:var(--ink);}
  .footer-brand .brand-sub{display:inline-block;margin-top:6px;font-size:10px;font-weight:600;color:var(--brand);background:var(--accent-soft);border-radius:var(--radius-pill);padding:2px 8px;}
  .footer-about{margin-top:14px;font-size:14px;color:var(--muted);line-height:1.85;max-width:300px;}
  .footer-title{font-size:14px;font-weight:600;color:var(--ink);margin-bottom:14px;}
  .footer-list{display:flex;flex-direction:column;gap:10px;font-size:14px;color:var(--muted);}
  .footer-list a:hover{color:var(--brand);}
  .footer-bottom{
    margin-top:40px;padding-top:20px;border-top:1px solid var(--line);
    display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
    font-size:13px;color:var(--muted);
  }
  .footer-bottom a{color:var(--brand);}
  .footer-bottom a:hover{text-decoration:underline;}

  /* ============ 响应式 ============ */
  @media (max-width:1023px){
    .nav-links{display:none;}
    .menu-btn{display:inline-flex;}
    .header-right .btn-primary{display:none;}
    .header-inner{height:56px;}
    .section{padding:56px 0;}
    .page-hero{padding:40px 0 34px;}
    .page-hero-grid{flex-direction:column;gap:26px;}
    .page-hero h1{font-size:32px;}
    .time-filter{flex-direction:row;flex-wrap:wrap;gap:8px;align-items:center;padding-top:0;}
    .time-filter .tf-label{width:100%;}
    .focus-card{grid-template-columns:1fr;}
    .focus-body{padding:26px 24px;}
    .angles{grid-template-columns:1fr;}
    .angle-item{border-right:0;}
    .angle-item:nth-last-child(-n+2){border-bottom:1px solid var(--line);}
    .angle-item:last-child{border-bottom:0;}
    .cta-band{flex-direction:column;align-items:flex-start;padding:36px 28px;}
    .cta-form{width:100%;flex-wrap:wrap;}
    .cta-form input{width:100%;}
    .footer-grid{grid-template-columns:1fr 1fr;gap:30px;}
    .site-footer{margin-top:56px;}
  }

  @media (max-width:640px){
    .shell{padding:0 20px;}
    .brand-main{font-size:17px;}
    .brand-tag{font-size:9px;}
    .page-hero h1{font-size:30px;}
    .sec-title{font-size:22px;}
    .obs-row{grid-template-columns:1fr;gap:12px;padding:22px 20px;}
    .obs-date{flex-direction:row;align-items:baseline;gap:8px;}
    .obs-date .d{font-size:20px;}
    .obs-date .m{margin-top:0;}
    .obs-arrow{display:none;}
    .obs-title{font-size:17px;}
    .focus-body h3{font-size:20px;}
    .quote-band{padding:22px 20px;}
    .cta-band h2{font-size:22px;}
    .footer-grid{grid-template-columns:1fr;gap:26px;}
    .footer-bottom{flex-direction:column;align-items:flex-start;gap:8px;}
    .section{padding:48px 0;}
  }

  @media (hover:none){
    .btn:hover,.link-more:hover .arrow,.obs-row:hover .obs-arrow,.focus-card:hover .focus-media img{transform:none;}
    .btn-primary:hover{background:var(--brand);}
  }

/* roulang page: category4 */
:root{
  --brand:#1F4E68;
  --brand-dark:#173C52;
  --accent:#E8B449;
  --accent-soft:rgba(232,180,73,.28);
  --bg:#F6F8FA;
  --surface:#FFFFFF;
  --ink:#16212B;
  --ink-2:#2C3A46;
  --muted:#6C7C8B;
  --line:#E2E9EF;
  --line-strong:#CFDAE3;
  --dark:#0F2233;
  --soft:#FAFCFD;
  --radius-card:16px;
  --radius-btn:10px;
  --radius-img:14px;
  --shadow-sm:0 1px 2px rgba(16,33,46,.05);
  --shadow-md:0 6px 20px rgba(16,33,46,.07);
  --shadow-lg:0 14px 32px rgba(16,33,46,.10);
  --shell:1200px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:"PingFang SC","Hiragino Sans GB","Noto Sans SC","Microsoft YaHei",sans-serif;
  font-size:16px;
  line-height:1.75;
  color:var(--ink-2);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
button{font:inherit;color:inherit;border:0;background:none;cursor:pointer}
h1,h2,h3,h4,p,figure,blockquote{margin:0}
ul,ol{margin:0;padding:0;list-style:none}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px;border-radius:6px}
.tnum{font-variant-numeric:tabular-nums}
.shell{max-width:var(--shell);margin:0 auto;padding:0 24px}

/* ---------- header ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  background:var(--surface);
  border-bottom:1px solid var(--line);
  transition:box-shadow .25s ease;
}
.site-header.is-scrolled{box-shadow:var(--shadow-md)}
.header-inner{display:flex;align-items:center;gap:32px;height:64px}
.brand{display:flex;flex-direction:column;justify-content:center;gap:1px;flex:none}
.brand-name{font-size:19px;font-weight:600;color:var(--ink);letter-spacing:.02em;line-height:1.25}
.brand-sub{font-size:8px;line-height:1.2;color:var(--muted);letter-spacing:.16em}
.nav-links{display:flex;align-items:center;gap:26px}
.nav-link{
  position:relative;padding:6px 0;font-size:14.5px;color:var(--ink-2);
  transition:color .2s ease;white-space:nowrap;
}
.nav-link::after{
  content:"";position:absolute;left:0;right:0;bottom:0;height:2px;
  background:var(--brand);border-radius:2px;
  transform:scaleX(0);transform-origin:left;transition:transform .22s ease;
}
.nav-link:hover{color:var(--brand)}
.nav-link:hover::after{transform:scaleX(1)}
.nav-link.active{color:var(--brand);font-weight:600}
.nav-link.active::after{transform:scaleX(1)}
.header-actions{margin-left:auto;display:flex;align-items:center;gap:12px}
.icon-btn{
  width:38px;height:38px;display:inline-flex;align-items:center;justify-content:center;
  border-radius:10px;color:var(--ink-2);transition:background .2s ease,color .2s ease;
}
.icon-btn:hover{background:#F0F5F8;color:var(--brand)}
.menu-toggle{display:none;width:38px;height:38px;align-items:center;justify-content:center;border-radius:10px;color:var(--ink)}
.menu-toggle:hover{background:#F0F5F8;color:var(--brand)}
.menu-toggle span{display:block;width:18px;height:2px;background:currentColor;border-radius:2px;position:relative}
.menu-toggle span::before,.menu-toggle span::after{
  content:"";position:absolute;left:0;width:18px;height:2px;background:currentColor;border-radius:2px;
}
.menu-toggle span::before{top:-6px}
.menu-toggle span::after{top:6px}
.drawer{display:none;border-top:1px solid var(--line);background:var(--surface);padding:10px 0 20px}
.drawer.open{display:block}
.drawer a{
  display:block;padding:12px 6px;font-size:15px;color:var(--ink-2);border-radius:10px;
  transition:background .2s ease,color .2s ease;
}
.drawer a:hover{background:#F0F5F8;color:var(--brand)}
.drawer a.active{color:var(--brand);font-weight:600;background:#F0F5F8}
.drawer .btn{width:100%;margin-top:12px}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:11px 20px;border-radius:var(--radius-btn);border:1px solid transparent;
  font-size:14.5px;font-weight:500;line-height:1.4;
  transition:background .2s ease,color .2s ease,border-color .2s ease,transform .2s ease,box-shadow .2s ease;
}
.btn-primary{background:var(--brand);color:#fff}
.btn-primary:hover{background:var(--brand-dark);transform:translateY(-1px);box-shadow:var(--shadow-md)}
.btn-primary:active{transform:translateY(0);box-shadow:var(--shadow-sm)}
.btn-ghost{background:transparent;border-color:var(--line-strong);color:var(--ink)}
.btn-ghost:hover{border-color:var(--brand);background:#F0F5F8;color:var(--brand)}
.btn-accent{background:var(--accent);color:#16212B}
.btn-accent:hover{background:#DCA63B;transform:translateY(-1px);box-shadow:var(--shadow-md)}
.btn-sm{padding:8px 16px;font-size:14px}
.link-arrow{display:inline-flex;align-items:center;gap:6px;font-size:14px;font-weight:500;color:var(--brand)}
.link-arrow svg{transition:transform .2s ease}
.link-arrow:hover{color:var(--brand-dark)}
.link-arrow:hover svg{transform:translateX(3px)}

/* ---------- page head ---------- */
.page-head{padding:56px 0 0}
.page-eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  background:rgba(232,180,73,.22);color:var(--brand);
  border-radius:999px;padding:5px 14px;font-size:12.5px;letter-spacing:.04em;
}
.page-head h1{
  margin-top:18px;font-size:36px;line-height:1.28;font-weight:600;color:var(--ink);
  letter-spacing:.01em;
}
.page-head .lead{margin-top:14px;font-size:16px;color:var(--muted);max-width:760px;line-height:1.85}
.page-head .count{margin-top:16px;font-size:13px;color:var(--muted)}
.page-head .count b{color:var(--brand);font-weight:600}

/* ---------- chip filter ---------- */
.chip-bar{display:flex;flex-wrap:wrap;gap:10px;margin-top:26px;padding-bottom:4px}
.chip{
  display:inline-flex;align-items:center;
  padding:7px 16px;border-radius:999px;border:1px solid var(--line-strong);
  background:var(--surface);font-size:13.5px;color:var(--ink-2);
  transition:background .2s ease,border-color .2s ease,color .2s ease;
}
.chip:hover{border-color:var(--brand);color:var(--brand)}
.chip.is-active{background:var(--brand);border-color:var(--brand);color:#fff;font-weight:500}

/* ---------- section ---------- */
.section{padding:64px 0}
.section-tight{padding:44px 0 0}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:20px;margin-bottom:28px}
.section-title{
  position:relative;padding-left:14px;font-size:22px;font-weight:600;color:var(--ink);line-height:1.4;
}
.section-title::before{
  content:"";position:absolute;left:0;top:50%;transform:translateY(-50%);
  width:4px;height:18px;border-radius:3px;background:var(--brand);
}
.section-desc mt-2{font-size:14.5px;color:var(--muted)}
.section-sub{margin-top:8px;font-size:14.5px;color:var(--muted);padding-left:14px}

/* ---------- note grid ---------- */
.note-grid{
  display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px;margin-top:8px;
}
.note-card{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-card);
  padding:16px;box-shadow:var(--shadow-sm);
  transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease;
}
.note-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-lg);border-color:#D5E1EA}
.note-thumb{
  display:block;overflow:hidden;border-radius:var(--radius-img);background:#EDF2F6;
  aspect-ratio:4/3;
}
.note-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .5s ease}
.note-card:hover .note-thumb img{transform:scale(1.04)}
.note-title{
  margin-top:14px;font-size:15px;line-height:1.55;font-weight:600;color:var(--ink);
  transition:color .2s ease;
}
.note-card:hover .note-title{color:var(--brand)}
.note-meta{
  display:flex;align-items:center;gap:10px;margin-top:8px;
  font-size:12px;color:var(--muted);
}
.note-meta .dot{width:3px;height:3px;border-radius:50%;background:var(--line-strong)}
.note-meta .tag{color:var(--brand);background:#F0F5F8;border-radius:999px;padding:1px 8px}

/* ---------- quote band ---------- */
.quote-band{
  grid-column:1/-1;
  background:#F3F7FA;border-left:4px solid var(--brand);border-radius:14px;
  padding:28px 32px;
}
.quote-band p{
  font-size:17px;line-height:1.9;color:var(--ink);font-style:italic;
}
.quote-band span{display:block;margin-top:10px;font-size:13px;color:var(--muted);font-style:normal}

/* ---------- load more ---------- */
.load-more{display:flex;justify-content:center;margin-top:36px}

/* ---------- split note-about ---------- */
.split{
  display:grid;grid-template-columns:1.7fr 1fr;gap:56px;align-items:start;
}
.split-title{position:relative;padding-left:14px;font-size:24px;font-weight:600;color:var(--ink);line-height:1.4}
.split-title::before{
  content:"";position:absolute;left:0;top:50%;transform:translateY(-50%);
  width:4px;height:18px;border-radius:3px;background:var(--brand);
}
.split p{margin-top:16px;font-size:15.5px;line-height:1.95;color:var(--ink-2)}
.num-list{display:flex;flex-direction:column;gap:22px;padding-top:6px}
.num-item{display:flex;gap:14px;align-items:flex-start}
.num-item .num{
  font-size:24px;font-weight:600;color:var(--accent);line-height:1.2;
  font-variant-numeric:tabular-nums;flex:none;
}
.num-item h4{font-size:15.5px;font-weight:600;color:var(--ink);margin-bottom:4px}
.num-item p{margin:0;font-size:14px;line-height:1.85;color:var(--muted)}

/* ---------- faq ---------- */
.faq-list{display:flex;flex-direction:column;gap:12px;margin-top:8px}
.faq-item{
  background:var(--surface);border:1px solid var(--line);border-radius:12px;
  box-shadow:var(--shadow-sm);overflow:hidden;transition:border-color .2s ease,box-shadow .2s ease;
}
.faq-item:hover{border-color:#D5E1EA}
.faq-item[open]{box-shadow:var(--shadow-md);border-color:#D5E1EA}
.faq-q{
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:18px 22px;font-size:16px;font-weight:500;color:var(--ink);
  cursor:pointer;list-style:none;
}
.faq-q::-webkit-details-marker{display:none}
.faq-icon{
  flex:none;width:22px;height:22px;display:inline-flex;align-items:center;justify-content:center;
  color:var(--brand);font-size:20px;line-height:1;transition:transform .25s ease;
}
.faq-item[open] .faq-icon{transform:rotate(45deg)}
.faq-a{
  padding:2px 22px 20px;font-size:15px;line-height:1.85;color:var(--ink-2);
  background:var(--soft);border-top:1px solid var(--line);
}

/* ---------- cta band ---------- */
.cta-wrap{padding:24px 0 72px}
.cta-band{
  background:var(--dark);border-radius:20px;padding:48px;
  display:flex;align-items:center;justify-content:space-between;gap:40px;flex-wrap:wrap;
}
.cta-copy{max-width:520px}
.cta-title{font-size:26px;font-weight:600;color:#fff;line-height:1.35}
.cta-desc{margin-top:12px;font-size:15px;line-height:1.85;color:rgba(255,255,255,.72)}
.cta-form{display:flex;gap:12px;flex-wrap:wrap;align-items:center}
.cta-input{
  width:250px;padding:12px 16px;border-radius:var(--radius-btn);
  border:1px solid rgba(255,255,255,.22);background:rgba(255,255,255,.08);
  color:#fff;font-size:14px;outline:none;transition:border-color .2s ease,background .2s ease;
}
.cta-input::placeholder{color:rgba(255,255,255,.5)}
.cta-input:focus{border-color:var(--accent);background:rgba(255,255,255,.13)}
.cta-note{width:100%;font-size:12.5px;color:rgba(255,255,255,.5);margin-top:2px}

/* ---------- footer ---------- */
.site-footer{background:var(--surface);border-top:1px solid var(--line);padding:64px 0 28px}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.2fr;gap:40px}
.footer-brand .brand-name{display:block;font-size:18px;font-weight:600;color:var(--ink)}
.footer-brand .brand-sub{display:block;margin-top:3px;font-size:9px;letter-spacing:.16em;color:var(--muted)}
.footer-about{margin-top:14px;font-size:13.5px;line-height:1.9;color:var(--muted);max-width:320px}
.footer-title{font-size:14px;font-weight:600;color:var(--ink);margin-bottom:14px}
.footer-list{display:flex;flex-direction:column;gap:10px;font-size:13.5px;color:var(--muted)}
.footer-list a{transition:color .2s ease}
.footer-list a:hover{color:var(--brand)}
.footer-bottom{
  display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;align-items:center;
  margin-top:44px;padding-top:20px;border-top:1px solid var(--line);
  font-size:12.5px;color:var(--muted);
}
.footer-bottom a{color:var(--brand)}
.footer-bottom a:hover{text-decoration:underline}

/* ---------- responsive ---------- */
@media (max-width:1023px){
  .nav-links{display:none}
  .menu-toggle{display:inline-flex}
  .header-inner{height:56px;gap:16px}
  .header-actions .btn-sm{display:none}
  .section{padding:52px 0}
  .page-head{padding-top:40px}
  .page-head h1{font-size:31px}
  .split{grid-template-columns:1fr;gap:32px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
  .cta-band{padding:36px}
  .cta-title{font-size:23px}
}
@media (max-width:900px){
  .note-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:20px}
}
@media (max-width:639px){
  .shell{padding:0 20px}
  .note-grid{grid-template-columns:1fr;gap:18px}
  .page-head h1{font-size:28px}
  .page-head .lead{font-size:15px}
  .section{padding:44px 0}
  .cta-band{padding:28px 22px;border-radius:16px}
  .cta-input{width:100%}
  .cta-form{width:100%}
  .cta-form .btn{width:100%}
  .footer-grid{grid-template-columns:1fr;gap:28px}
  .quote-band{padding:22px}
  .quote-band p{font-size:15.5px}
  .faq-q{font-size:15px;padding:16px 18px}
  .faq-a{padding:2px 18px 18px;font-size:14.5px}
}
@media (hover:none){
  .note-card:hover{transform:none}
  .btn:hover{transform:none}
  .note-card:hover .note-thumb img{transform:none}
}