/* roulang page: index */
:root{
  --brand:#2E6FB7;
  --brand-deep:#1F4E82;
  --brand-light:#EAF2FB;
  --teal:#16A3A8;
  --gold:#D99A2B;
  --bg:#F7F9FC;
  --card:#FFFFFF;
  --text:#172B4D;
  --muted:#5E6C7B;
  --line:#E4EAF2;
  --radius-card:16px;
  --radius-btn:12px;
  --radius-img:14px;
  --shadow-1:0 8px 24px rgba(31,78,130,.08);
  --shadow-2:0 12px 28px rgba(31,78,130,.14);
  --shadow-3:0 18px 44px rgba(31,78,130,.16);
  --space:96px;
  --maxw:1240px;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC","Hiragino Sans GB",system-ui,-apple-system,sans-serif;
  font-size:17px;
  line-height:1.75;
  color:var(--text);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;height:auto;display:block;}
a{color:var(--brand-deep);text-decoration:none;transition:color .2s ease;}
a:hover{color:var(--brand);}
h1,h2,h3,h4{margin:0;color:var(--text);letter-spacing:.2px;}
p{margin:0 0 1.1em;}
ul{margin:0;padding:0;list-style:none;}
button{font-family:inherit;}
:focus-visible{outline:3px solid rgba(46,111,183,.45);outline-offset:2px;border-radius:6px;}
.container{width:100%;max-width:var(--maxw);margin:0 auto;padding:0 24px;}
.section{padding:var(--space) 0;}
.section--tight{padding:64px 0;}
.section--alt{background:#FFFFFF;}
.section-head{margin-bottom:44px;}
.section-tag{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;font-weight:600;letter-spacing:1px;
  color:var(--brand);background:var(--brand-light);
  border:1px solid #D7E6F7;border-radius:999px;
  padding:6px 14px;margin-bottom:16px;
}
.section-head h2{font-size:clamp(1.5rem,2.2vw,2rem);font-weight:650;line-height:1.35;}
.section-head p{margin-top:12px;color:var(--muted);font-size:16px;max-width:760px;}
.section-head--split{display:flex;justify-content:space-between;align-items:flex-end;gap:24px;flex-wrap:wrap;}

/* ---------- Buttons ---------- */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:46px;padding:0 22px;border-radius:var(--radius-btn);
  font-size:15.5px;font-weight:600;border:1px solid transparent;
  cursor:pointer;transition:all .22s ease;white-space:nowrap;}
.btn-primary{background:var(--brand);color:#fff;box-shadow:0 6px 16px rgba(46,111,183,.22);}
.btn-primary:hover,.btn-primary:active{background:var(--brand-deep);color:#fff;box-shadow:var(--shadow-2);transform:translateY(-2px);}
.btn-outline{background:#fff;color:var(--brand);border-color:#C7DCF3;}
.btn-outline:hover{background:var(--brand-light);border-color:var(--brand);color:var(--brand-deep);transform:translateY(-2px);}
.btn-ghost{background:transparent;color:var(--text);border-color:transparent;}
.btn-ghost:hover{color:var(--brand);background:var(--brand-light);}
.btn-gold{background:#fff;color:#9A6A12;border-color:#F0DDB5;}
.btn-gold:hover{background:#FDF6E8;color:#8A5D0C;border-color:var(--gold);transform:translateY(-2px);}
.btn-sm{height:40px;padding:0 16px;font-size:14.5px;}
.btn-block{width:100%;}

/* ---------- Header ---------- */
.site-header{
  position:sticky;top:0;z-index:1000;
  background:rgba(255,255,255,.94);
  backdrop-filter:saturate(150%) blur(8px);
  border-bottom:1px solid var(--line);
}
.nav-wrap{
  display:grid;grid-template-columns:1fr auto 1fr;align-items:center;
  min-height:80px;gap:16px;
}
.nav-side{display:flex;align-items:center;gap:26px;}
.nav-left{justify-content:flex-start;}
.nav-right{justify-content:flex-end;gap:22px;}
.nav-link{
  position:relative;font-size:15.5px;font-weight:500;color:#33465F;
  padding:6px 2px;line-height:1.2;
}
.nav-link::after{
  content:"";position:absolute;left:50%;right:50%;bottom:-4px;height:2px;
  background:var(--brand);border-radius:2px;transition:left .22s ease,right .22s ease;
}
.nav-link:hover{color:var(--brand);}
.nav-link:hover::after{left:0;right:0;}
.nav-link.active{color:var(--brand);font-weight:600;}
.nav-link.active::after{left:0;right:0;}
.brand{display:flex;align-items:center;gap:10px;justify-self:center;white-space:nowrap;}
.brand-mark{
  width:38px;height:38px;border-radius:11px;display:grid;place-items:center;
  background:linear-gradient(150deg,#3B7FC4,#1F4E82);color:#fff;
  font-size:17px;font-weight:700;box-shadow:0 6px 14px rgba(31,78,130,.24);
}
.brand-text{font-size:20px;font-weight:700;color:var(--brand-deep);letter-spacing:.4px;}
.brand:hover .brand-text{color:var(--brand);}
.nav-toggle{
  display:none;align-items:center;justify-content:center;
  width:44px;height:44px;border-radius:12px;border:1px solid var(--line);
  background:#fff;color:var(--text);font-size:17px;cursor:pointer;
}
.nav-toggle:hover{border-color:var(--brand);color:var(--brand);}
.mobile-drawer{
  display:none;position:fixed;inset:0;z-index:1200;background:#fff;
  padding:22px 24px 96px;overflow-y:auto;
}
.mobile-drawer.open{display:block;}
.drawer-top{display:flex;align-items:center;justify-content:space-between;margin-bottom:26px;}
.drawer-close{width:44px;height:44px;border-radius:12px;border:1px solid var(--line);background:#fff;font-size:18px;color:var(--text);cursor:pointer;}
.drawer-nav a{
  display:block;padding:16px 4px;font-size:19px;font-weight:600;color:var(--text);
  border-bottom:1px solid var(--line);
}
.drawer-nav a:hover,.drawer-nav a.active{color:var(--brand);}
.drawer-cta{position:fixed;left:24px;right:24px;bottom:20px;}
.drawer-cta .btn{height:50px;}

/* ---------- Hero ---------- */
.hero{
  position:relative;overflow:hidden;
  background:linear-gradient(180deg,#F2F7FD 0%,#F7F9FC 72%);
  padding:72px 0 84px;
}
.hero::after{
  content:"";position:absolute;right:-140px;top:-140px;width:420px;height:420px;
  border-radius:50%;background:radial-gradient(circle,rgba(22,163,168,.10),rgba(22,163,168,0) 70%);
  pointer-events:none;
}
.hero-grid{display:grid;grid-template-columns:7fr 5fr;gap:48px;align-items:center;position:relative;z-index:2;}
.hero-badge{
  display:inline-flex;align-items:center;gap:10px;background:#fff;border:1px solid var(--line);
  border-radius:999px;padding:7px 16px;font-size:13.5px;font-weight:600;color:var(--brand-deep);
  box-shadow:var(--shadow-1);margin-bottom:20px;
}
.hero-badge i{color:var(--teal);}
.hero h1{
  font-size:clamp(2rem,3.4vw,3.15rem);font-weight:700;line-height:1.24;letter-spacing:-.3px;
}
.hero h1 span{color:var(--brand);}
.hero-sub{margin-top:20px;font-size:17.5px;color:#42566F;max-width:640px;}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:30px;}
.hero-tags{display:flex;flex-wrap:wrap;gap:10px;margin-top:32px;}
.tag{
  display:inline-flex;align-items:center;gap:6px;font-size:13.5px;font-weight:500;
  color:#3C5773;background:#fff;border:1px solid var(--line);border-radius:999px;padding:7px 14px;
}
.tag i{color:var(--teal);font-size:12px;}
.hero-stats{display:flex;flex-wrap:wrap;gap:34px;margin-top:34px;padding-top:26px;border-top:1px dashed #D8E3F0;}
.stat-num{font-size:26px;font-weight:700;color:var(--brand-deep);line-height:1.2;font-family:Inter,"PingFang SC",sans-serif;}
.stat-label{font-size:13.5px;color:var(--muted);margin-top:2px;}
.hero-visual{position:relative;}
.hero-visual img{
  width:100%;aspect-ratio:4/3;object-fit:cover;border-radius:20px;
  box-shadow:var(--shadow-3);border:1px solid #fff;
}
.hero-float{
  position:absolute;left:-18px;bottom:-22px;background:#fff;border:1px solid var(--line);
  border-radius:14px;padding:14px 18px;box-shadow:var(--shadow-2);display:flex;align-items:center;gap:12px;
  max-width:290px;
}
.hero-float i{color:var(--gold);font-size:20px;}
.hero-float strong{display:block;font-size:14.5px;}
.hero-float span{font-size:13px;color:var(--muted);}

/* ---------- Steps / feature cards ---------- */
.step-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;}
.step-card{
  background:var(--card);border:1px solid var(--line);border-radius:var(--radius-card);
  padding:26px 24px;box-shadow:var(--shadow-1);position:relative;
  transition:transform .24s ease,box-shadow .24s ease,border-color .24s ease;
}
.step-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-2);border-color:#D3E2F4;}
.step-card .num{
  font-size:13px;font-weight:700;letter-spacing:1.4px;color:var(--brand);
  background:var(--brand-light);border-radius:8px;padding:4px 10px;display:inline-block;margin-bottom:14px;
}
.step-card h3{font-size:19px;font-weight:600;margin-bottom:10px;}
.step-card p{font-size:15.5px;color:var(--muted);margin:0;}
.step-card.accent{border-left:4px solid var(--gold);}

/* ---------- Collection grid ---------- */
.collection-grid{display:grid;grid-template-columns:repeat(6,1fr);gap:24px;}
.collection-card{
  position:relative;display:block;overflow:hidden;border-radius:var(--radius-card);
  background:var(--card);border:1px solid var(--line);box-shadow:var(--shadow-1);
  transition:transform .24s ease,box-shadow .24s ease;
}
.collection-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-2);}
.collection-card .thumb{overflow:hidden;display:block;}
.collection-card .thumb img{width:100%;object-fit:cover;transition:transform .5s ease;}
.collection-card:hover .thumb img{transform:scale(1.04);}
.collection-card.lg{grid-column:span 3;}
.collection-card.sm{grid-column:span 2;}
.collection-card.lg .thumb img{height:230px;}
.collection-card.sm .thumb img{height:168px;}
.collection-body{padding:20px 22px 22px;}
.collection-body h3{font-size:18.5px;font-weight:600;margin-bottom:8px;}
.collection-body p{font-size:14.5px;color:var(--muted);margin:0 0 14px;}
.collection-meta{display:flex;align-items:center;justify-content:space-between;font-size:13.5px;color:var(--muted);}
.collection-meta .enter{color:var(--brand);font-weight:600;}
.collection-meta .enter i{font-size:12px;margin-left:4px;transition:transform .2s ease;}
.collection-card:hover .enter i{transform:translateX(3px);}

/* ---------- Featured ---------- */
.feature-grid{display:grid;grid-template-columns:6fr 6fr;gap:28px;align-items:start;}
.feature-main{
  background:var(--card);border:1px solid var(--line);border-radius:var(--radius-card);
  overflow:hidden;box-shadow:var(--shadow-1);transition:transform .24s ease,box-shadow .24s ease;
}
.feature-main:hover{transform:translateY(-4px);box-shadow:var(--shadow-2);}
.feature-main img{width:100%;height:288px;object-fit:cover;}
.feature-main .body{padding:26px 26px 28px;}
.badge-cat{
  display:inline-block;font-size:12.5px;font-weight:600;color:var(--brand-deep);
  background:var(--brand-light);border:1px solid #D5E5F7;border-radius:999px;padding:4px 12px;
}
.badge-cat.teal{color:#0E7477;background:#E6F7F7;border-color:#C7EDED;}
.badge-cat.gold{color:#8A5D0C;background:#FDF4E3;border-color:#F2E1BE;}
.feature-main h3{font-size:22px;font-weight:600;margin:14px 0 12px;line-height:1.42;}
.feature-main p{color:var(--muted);font-size:15.5px;margin-bottom:16px;}
.meta-row{display:flex;align-items:center;gap:14px;font-size:13.5px;color:var(--muted);}
.media-list{display:flex;flex-direction:column;gap:18px;}
.media-item{
  display:grid;grid-template-columns:150px 1fr;gap:18px;background:var(--card);
  border:1px solid var(--line);border-radius:var(--radius-card);padding:16px;
  box-shadow:var(--shadow-1);transition:transform .24s ease,box-shadow .24s ease;
}
.media-item:hover{transform:translateY(-3px);box-shadow:var(--shadow-2);}
.media-item .thumb{border-radius:12px;overflow:hidden;}
.media-item .thumb img{width:100%;height:100%;min-height:110px;object-fit:cover;transition:transform .5s ease;}
.media-item:hover .thumb img{transform:scale(1.04);}
.media-item h3{font-size:17px;font-weight:600;margin:8px 0 6px;line-height:1.45;}
.media-item p{font-size:14.5px;color:var(--muted);margin:0 0 8px;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}

/* ---------- CMS list ---------- */
.cms-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:22px;}
.cms-card{
  display:grid;grid-template-columns:170px 1fr;gap:18px;background:var(--card);
  border:1px solid var(--line);border-radius:var(--radius-card);padding:18px;
  box-shadow:var(--shadow-1);transition:transform .24s ease,box-shadow .24s ease,border-color .24s ease;
}
.cms-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-2);border-color:#D3E2F4;}
.cms-card .thumb{border-radius:12px;overflow:hidden;background:linear-gradient(135deg,#EDF3FB,#E3ECF7);
  display:grid;place-items:center;min-height:118px;}
.cms-card .thumb img{width:100%;height:100%;object-fit:cover;}
.cms-card .thumb i{color:#A9C1DC;font-size:26px;}
.cms-card h3{font-size:17px;font-weight:600;margin:9px 0 8px;line-height:1.45;}
.cms-card h3 a{color:var(--text);}
.cms-card h3 a:hover{color:var(--brand);}
.cms-card p{font-size:14.5px;color:var(--muted);margin:0 0 10px;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.empty-state{
  border:1px dashed #CFDDEE;border-radius:var(--radius-card);background:#FBFDFF;
  padding:56px 24px;text-align:center;
}
.empty-state i{font-size:34px;color:#A9C1DC;}
.empty-state h3{font-size:18px;font-weight:600;margin:16px 0 8px;}
.empty-state p{color:var(--muted);font-size:15px;margin-bottom:20px;}

/* ---------- Recommend (horizontal scroll) ---------- */
.scroll-row{
  display:flex;gap:22px;overflow-x:auto;padding:6px 4px 20px;scroll-snap-type:x mandatory;
}
.scroll-row::-webkit-scrollbar{height:8px;}
.scroll-row::-webkit-scrollbar-thumb{background:#D6E2F0;border-radius:999px;}
.scroll-row::-webkit-scrollbar-track{background:transparent;}
.mini-card{
  flex:0 0 320px;scroll-snap-align:start;background:var(--card);border:1px solid var(--line);
  border-radius:var(--radius-card);overflow:hidden;box-shadow:var(--shadow-1);
  transition:transform .24s ease,box-shadow .24s ease;
}
.mini-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-2);}
.mini-card img{width:100%;height:172px;object-fit:cover;transition:transform .5s ease;}
.mini-card:hover img{transform:scale(1.04);}
.mini-card .body{padding:18px 20px 20px;}
.mini-card h3{font-size:17px;font-weight:600;margin:10px 0 8px;line-height:1.45;}
.mini-card .meta-row{font-size:13px;}

/* ---------- FAQ ---------- */
.faq-wrap{max-width:920px;margin:0 auto;}
.accordion-item{
  background:var(--card);border:1px solid var(--line) !important;border-radius:var(--radius-card) !important;
  margin-bottom:14px;overflow:hidden;box-shadow:var(--shadow-1);
}
.accordion-button{
  font-size:16px;font-weight:600;color:var(--text);background:#fff;
  padding:20px 24px;box-shadow:none !important;
}
.accordion-button:not(.collapsed){color:var(--brand-deep);background:#FBFDFF;}
.accordion-button::after{
  background-image:none;content:"\f067";font-family:"Font Awesome 6 Free";font-weight:900;
  width:auto;height:auto;font-size:13px;color:var(--brand);transition:transform .22s ease;
}
.accordion-button:not(.collapsed)::after{transform:rotate(45deg);}
.accordion-body{padding:0 24px 22px;color:var(--muted);font-size:15px;}

/* ---------- CTA banner ---------- */
.cta-banner{
  background:var(--brand-light);border:1px solid #D6E6F8;border-radius:20px;
  padding:30px 34px;display:flex;align-items:center;justify-content:space-between;gap:24px;flex-wrap:wrap;
}
.cta-banner h2{font-size:21px;font-weight:650;}
.cta-banner p{margin:8px 0 0;color:#42566F;font-size:15px;}
.cta-actions{display:flex;gap:12px;flex-wrap:wrap;}

/* ---------- Footer ---------- */
.site-footer{background:#152A44;color:#C6D4E4;padding:64px 0 0;margin-top:0;}
.footer-grid{display:grid;grid-template-columns:2fr 1fr 1fr 1.2fr;gap:40px;padding-bottom:44px;}
.footer-brand .brand-text{color:#fff;}
.footer-brand p{font-size:14.5px;line-height:1.85;color:#9FB3CA;margin:18px 0 0;max-width:340px;}
.footer-title{font-size:15px;font-weight:600;color:#fff;margin-bottom:16px;}
.footer-links li{margin-bottom:10px;}
.footer-links a{color:#9FB3CA;font-size:14.5px;}
.footer-links a:hover{color:#fff;}
.footer-contact li{display:flex;gap:10px;font-size:14.5px;color:#9FB3CA;margin-bottom:12px;}
.footer-contact i{color:var(--teal);margin-top:4px;}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.1);padding:22px 0;
  display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:13.5px;color:#8FA5BD;
}

/* ---------- Responsive ---------- */
@media (max-width:1199px){
  :root{--space:80px;}
  .hero-grid{gap:34px;}
  .cms-card{grid-template-columns:150px 1fr;}
}
@media (max-width:991px){
  .nav-side{display:none;}
  .nav-toggle{display:inline-flex;}
  .nav-wrap{grid-template-columns:auto 1fr auto;}
  .hero-grid{grid-template-columns:1fr;gap:36px;}
  .hero-visual img{aspect-ratio:16/10;}
  .hero-float{left:12px;bottom:-18px;}
  .step-grid{grid-template-columns:repeat(2,1fr);}
  .collection-grid{grid-template-columns:repeat(4,1fr);}
  .collection-card.lg{grid-column:span 4;}
  .collection-card.sm{grid-column:span 2;}
  .feature-grid{grid-template-columns:1fr;}
  .cms-grid{grid-template-columns:1fr;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
}
@media (max-width:767px){
  :root{--space:60px;}
  body{font-size:16px;}
  .container{padding:0 20px;}
  .hero{padding:48px 0 60px;}
  .hero-actions .btn{width:100%;}
  .hero-stats{gap:24px;}
  .step-grid{grid-template-columns:1fr;}
  .collection-grid{grid-template-columns:1fr;}
  .collection-card.lg,.collection-card.sm{grid-column:span 1;}
  .collection-card.lg .thumb img,.collection-card.sm .thumb img{height:180px;}
  .feature-main img{height:210px;}
  .media-item{grid-template-columns:118px 1fr;gap:14px;padding:14px;}
  .cms-card{grid-template-columns:1fr;}
  .cms-card .thumb{min-height:150px;}
  .mini-card{flex:0 0 268px;}
  .cta-banner{padding:24px 22px;}
  .cta-actions{width:100%;}
  .cta-actions .btn{flex:1 1 auto;}
  .footer-grid{grid-template-columns:1fr;}
}
@media (max-width:520px){
  .brand-text{font-size:17px;}
  .hero h1{font-size:1.78rem;}
  .section-head h2{font-size:1.42rem;}
  .stat-num{font-size:22px;}
}

/* roulang page: article */
:root{
  --primary:#2E6FB7;
  --primary-dark:#1F4E82;
  --primary-light:#EAF2FB;
  --accent:#16A3A8;
  --gold:#D99A2B;
  --bg:#F7F9FC;
  --card:#FFFFFF;
  --text:#172B4D;
  --muted:#5E6C7B;
  --border:#E4EAF2;
  --radius-card:16px;
  --radius-btn:12px;
  --radius-pill:999px;
  --shadow-sm:0 4px 14px rgba(31,78,130,.06);
  --shadow:0 8px 24px rgba(31,78,130,.08);
  --shadow-lg:0 12px 28px rgba(31,78,130,.12);
  --section-gap:88px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC",-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,sans-serif;
  background:var(--bg);
  color:var(--text);
  font-size:16px;
  line-height:1.75;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border-style:none}
a{color:var(--primary);text-decoration:none;transition:color .2s ease}
a:hover{color:var(--primary-dark)}
button,input,textarea{font-family:inherit;font-size:inherit}
h1,h2,h3,h4{margin:0;line-height:1.35;font-weight:650;color:var(--text)}
p{margin:0}
ul,ol{margin:0;padding:0;list-style:none}
:focus-visible{outline:3px solid rgba(46,111,183,.35);outline-offset:2px;border-radius:6px}

/* ============ 布局容器 ============ */
.container{width:100%;max-width:1240px;margin:0 auto;padding:0 24px}
.section{padding:var(--section-gap) 0}
.section-sm{padding:56px 0}
.section-head{margin-bottom:40px;max-width:760px}
.section-tag{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;font-weight:600;letter-spacing:.08em;
  color:var(--primary);background:var(--primary-light);
  border-radius:var(--radius-pill);padding:6px 14px;margin-bottom:16px;
}
.section-head h2{font-size:clamp(1.5rem,2.4vw,2rem);font-weight:650;letter-spacing:-.01em}
.section-head p{margin-top:12px;color:var(--muted);font-size:15.5px;line-height:1.8}

/* ============ 导航 ============ */
.site-header{
  position:sticky;top:0;z-index:100;
  background:#fff;border-bottom:1px solid var(--border);
  box-shadow:0 2px 12px rgba(31,78,130,.04);
}
.nav-wrap{position:relative;display:flex;align-items:center;justify-content:space-between;height:80px;gap:16px}
.brand{
  position:absolute;left:50%;transform:translateX(-50%);
  display:flex;align-items:center;gap:10px;white-space:nowrap;
}
.brand-mark{
  width:38px;height:38px;border-radius:12px;background:var(--primary);color:#fff;
  display:grid;place-items:center;font-size:18px;font-weight:700;
  box-shadow:0 6px 16px rgba(46,111,183,.28);
}
.brand-text{font-size:18px;font-weight:700;color:var(--text);letter-spacing:.02em}
.nav-side{display:flex;align-items:center;gap:26px}
.nav-link{position:relative;display:inline-block;padding:6px 0;font-size:15px;font-weight:500;color:#33475b}
.nav-link::after{
  content:"";position:absolute;left:0;right:0;bottom:-2px;height:2px;background:var(--primary);
  transform:scaleX(0);transform-origin:left;transition:transform .25s ease;
}
.nav-link:hover{color:var(--primary)}
.nav-link:hover::after{transform:scaleX(1)}
.nav-link.active{color:var(--primary);font-weight:600}
.nav-link.active::after{transform:scaleX(1)}
.nav-toggle{
  display:none;width:44px;height:44px;align-items:center;justify-content:center;
  border:1px solid var(--border);border-radius:12px;background:#fff;color:var(--primary-dark);
  cursor:pointer;transition:background .2s ease,border-color .2s ease;
}
.nav-toggle:hover{background:var(--primary-light);border-color:#c9ddf3}
.mobile-drawer{
  position:fixed;inset:0 0 auto 0;z-index:200;background:#fff;
  border-bottom:1px solid var(--border);box-shadow:var(--shadow-lg);
  padding:20px 24px 28px;transform:translateY(-102%);transition:transform .32s ease;
  max-height:100vh;overflow:auto;
}
.mobile-drawer.open{transform:translateY(0)}
.drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:18px}
.drawer-close{
  width:44px;height:44px;border-radius:12px;border:1px solid var(--border);background:#fff;
  color:var(--primary-dark);cursor:pointer;
}
.drawer-links li{border-bottom:1px solid var(--border)}
.drawer-links a{display:block;padding:16px 4px;font-size:17px;font-weight:600;color:#33475b}
.drawer-links a.active{color:var(--primary)}
.drawer-cta{margin-top:22px}
.drawer-cta .btn{width:100%}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:46px;padding:0 22px;border-radius:var(--radius-btn);
  font-size:15px;font-weight:600;line-height:1;cursor:pointer;
  border:1px solid transparent;transition:all .22s ease;white-space:nowrap;
}
.btn-primary{background:var(--primary);border-color:var(--primary);color:#fff;box-shadow:0 6px 16px rgba(46,111,183,.22)}
.btn-primary:hover{background:var(--primary-dark);border-color:var(--primary-dark);color:#fff;box-shadow:0 10px 22px rgba(31,78,130,.26);transform:translateY(-1px)}
.btn-outline{background:#fff;border-color:#c9ddf3;color:var(--primary-dark)}
.btn-outline:hover{background:var(--primary-light);border-color:var(--primary);color:var(--primary-dark);transform:translateY(-1px)}
.btn-ghost{background:transparent;border-color:transparent;color:#4a5b6d}
.btn-ghost:hover{background:#eef3f9;color:var(--primary-dark)}
.btn-gold{background:#fff;border-color:#f0d9a8;color:#a9761a}
.btn-gold:hover{background:#fdf6e7;border-color:var(--gold);color:#8c6213}
.btn-sm{min-height:40px;padding:0 16px;font-size:14px;border-radius:10px}

/* ============ 标签 / 徽章 ============ */
.badge-cat{
  display:inline-flex;align-items:center;gap:6px;
  padding:5px 12px;border-radius:var(--radius-pill);
  background:var(--primary-light);color:var(--primary-dark);
  font-size:13px;font-weight:600;
}
.badge-soft{background:#e9f7f7;color:#0f7d81}
.badge-tag{
  display:inline-flex;align-items:center;padding:5px 12px;border-radius:var(--radius-pill);
  background:#fff;border:1px solid var(--border);color:var(--muted);font-size:13px;font-weight:500;
}

/* ============ 文章头部 ============ */
.article-hero{
  background:#F1F6FC;border-bottom:1px solid var(--border);
  padding:26px 0 44px;position:relative;overflow:hidden;
}
.article-hero::after{
  content:"";position:absolute;right:-80px;top:-60px;width:320px;height:320px;border-radius:50%;
  background:rgba(46,111,183,.06);pointer-events:none;
}
.breadcrumb-nav{display:flex;flex-wrap:wrap;align-items:center;gap:10px;font-size:14px;color:var(--muted);margin-bottom:26px}
.breadcrumb-nav a{color:var(--muted)}
.breadcrumb-nav a:hover{color:var(--primary);text-decoration:underline}
.breadcrumb-nav .sep{color:#c3cdda}
.breadcrumb-nav .current{color:var(--primary);font-weight:600}
.article-head{position:relative;z-index:2;max-width:880px}
.article-head h1{
  font-size:clamp(1.6rem,3.1vw,2.45rem);font-weight:700;letter-spacing:-.01em;
  margin:18px 0 18px;line-height:1.35;
}
.meta-row{display:flex;flex-wrap:wrap;align-items:center;gap:12px 22px;font-size:14px;color:var(--muted)}
.meta-row span{display:inline-flex;align-items:center;gap:7px}
.meta-row i{color:var(--primary);font-size:13px}
.hero-cover{
  position:relative;z-index:2;margin-top:32px;border-radius:var(--radius-card);overflow:hidden;
  border:1px solid var(--border);box-shadow:var(--shadow);max-width:880px;
}
.hero-cover img{width:100%;height:300px;object-fit:cover}
.hero-cover figcaption{font-size:13px;color:var(--muted);padding:12px 18px;background:#fff}

/* ============ 文章布局 ============ */
.article-layout{display:grid;grid-template-columns:minmax(0,1fr) 320px;gap:48px;align-items:start}
.article-main{min-width:0}
.article-body{
  background:#fff;border:1px solid var(--border);border-radius:var(--radius-card);
  box-shadow:var(--shadow-sm);padding:44px 46px;
  font-size:17.5px;line-height:1.78;color:#22364f;max-width:820px;
}
.article-body > *:first-child{margin-top:0}
.article-body h2{
  font-size:1.45rem;font-weight:650;margin:36px 0 16px;color:var(--text);
  border-left:4px solid var(--primary);padding-left:14px;line-height:1.5;
}
.article-body h3{font-size:1.18rem;font-weight:600;margin:26px 0 12px;color:var(--text)}
.article-body h4{font-size:1.05rem;font-weight:600;margin:22px 0 10px}
.article-body p{margin:0 0 1.5em}
.article-body a{color:var(--primary);text-decoration:underline;text-underline-offset:3px}
.article-body strong{font-weight:600;color:var(--text)}
.article-body ul,.article-body ol{padding-left:24px;margin:0 0 1.5em}
.article-body ul{list-style:disc}
.article-body ol{list-style:decimal}
.article-body li{margin-bottom:10px}
.article-body blockquote{
  margin:24px 0;padding:16px 22px;background:var(--primary-light);
  border-left:3px solid var(--primary);border-radius:0 12px 12px 0;color:#2c4763;
}
.article-body img{border-radius:12px;margin:22px 0 8px;border:1px solid var(--border)}
.article-body table{width:100%;border-collapse:collapse;margin:22px 0;font-size:15.5px}
.article-body th,.article-body td{border:1px solid var(--border);padding:12px 14px;text-align:left}
.article-body th{background:#f4f8fd;font-weight:600;color:var(--primary-dark)}
.article-body pre{
  background:#10243c;color:#e5eef8;padding:18px 20px;border-radius:12px;
  overflow-x:auto;font-size:14.5px;line-height:1.7;margin:22px 0;
}
.article-body code{
  background:#eef3f9;color:#1F4E82;padding:2px 7px;border-radius:6px;
  font-size:.92em;font-family:Consolas,Monaco,"Courier New",monospace;
}
.article-body pre code{background:transparent;color:inherit;padding:0}
.article-body hr{border:0;border-top:1px solid var(--border);margin:32px 0}

.empty-state{
  display:flex;flex-direction:column;align-items:center;text-align:center;
  gap:14px;padding:56px 22px;background:#fbfdff;border:1px dashed #cfe0f2;border-radius:14px;
}
.empty-state i{font-size:36px;color:#9fb8d4}
.empty-state h2{font-size:1.25rem;border:0;padding:0;margin:0}
.empty-state p{color:var(--muted);font-size:15px;max-width:440px;margin:0}

.article-foot{
  display:flex;flex-wrap:wrap;gap:14px;margin-top:28px;padding-top:26px;
  border-top:1px solid var(--border);
}

/* ============ 侧栏 ============ */
.article-side{position:sticky;top:104px;display:flex;flex-direction:column;gap:20px}
.side-card{
  background:#fff;border:1px solid var(--border);border-radius:var(--radius-card);
  box-shadow:var(--shadow-sm);padding:24px;
}
.side-card h3{font-size:16px;font-weight:650;margin-bottom:14px}
.side-meta li{display:flex;justify-content:space-between;gap:12px;font-size:14px;padding:9px 0;border-bottom:1px dashed var(--border);color:var(--muted)}
.side-meta li:last-child{border-bottom:0}
.side-meta li strong{color:var(--text);font-weight:600}
.side-actions{display:flex;flex-direction:column;gap:10px;margin-top:6px}
.side-actions .btn{width:100%}
.side-note{font-size:13.5px;color:var(--muted);line-height:1.7}

/* ============ 相关推荐 ============ */
.scroll-track{
  display:grid;grid-auto-flow:column;grid-auto-columns:minmax(268px,1fr);
  gap:22px;overflow-x:auto;padding:6px 4px 20px;scroll-snap-type:x mandatory;
  scrollbar-width:thin;
}
.scroll-track::-webkit-scrollbar{height:8px}
.scroll-track::-webkit-scrollbar-thumb{background:#d3e0ee;border-radius:999px}
.rec-card{
  scroll-snap-align:start;background:#fff;border:1px solid var(--border);
  border-radius:var(--radius-card);overflow:hidden;box-shadow:var(--shadow-sm);
  transition:transform .25s ease,box-shadow .25s ease;display:flex;flex-direction:column;
}
.rec-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-lg)}
.rec-thumb{aspect-ratio:16/9;overflow:hidden;background:#eef3f9;display:grid;place-items:center}
.rec-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .4s ease}
.rec-card:hover .rec-thumb img{transform:scale(1.04)}
.rec-body{padding:18px 20px 20px;display:flex;flex-direction:column;gap:10px;flex:1}
.rec-body h3{font-size:16.5px;font-weight:600;line-height:1.5;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.rec-body p{font-size:14px;color:var(--muted);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.rec-meta{display:flex;align-items:center;gap:12px;font-size:13px;color:#8494a5;margin-top:auto}

/* ============ 收藏/分享 CTA ============ */
.cta-strip{
  background:#fff;border:1px solid var(--border);border-radius:var(--radius-card);
  box-shadow:var(--shadow-sm);padding:30px 34px;
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:22px;
}
.cta-strip h2{font-size:1.25rem;font-weight:650;margin-bottom:8px}
.cta-strip p{font-size:15px;color:var(--muted);max-width:620px}
.cta-actions{display:flex;flex-wrap:wrap;gap:12px}

/* ============ 页脚 ============ */
.site-footer{background:#10243c;color:#c8d6e5;padding:64px 0 26px;margin-top:20px}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.2fr;gap:40px}
.site-footer .brand{position:static;transform:none;margin-bottom:16px}
.site-footer .brand-text{color:#fff}
.site-footer .brand-mark{background:var(--primary)}
.footer-brand p{font-size:14px;line-height:1.85;color:#93a8bf;max-width:340px}
.footer-title{font-size:15px;font-weight:650;color:#fff;margin-bottom:16px}
.footer-links li,.footer-contact li{margin-bottom:11px}
.footer-links a{font-size:14px;color:#a9bdd2}
.footer-links a:hover{color:#fff}
.footer-contact li{display:flex;align-items:flex-start;gap:9px;font-size:14px;color:#a9bdd2}
.footer-contact i{color:#5f9ad4;margin-top:4px;font-size:13px}
.footer-bottom{
  margin-top:44px;padding-top:20px;border-top:1px solid rgba(255,255,255,.1);
  display:flex;flex-wrap:wrap;justify-content:space-between;gap:10px;
  font-size:13px;color:#8296ac;
}

/* ============ 响应式 ============ */
@media (max-width:1200px){
  .article-layout{grid-template-columns:minmax(0,1fr) 288px;gap:36px}
  .footer-grid{grid-template-columns:1.5fr 1fr 1fr;gap:34px}
}
@media (max-width:991px){
  .nav-side{display:none}
  .nav-toggle{display:inline-flex}
  .nav-wrap{height:72px}
  .brand{position:static;transform:none}
  .nav-wrap{justify-content:space-between}
  .article-layout{grid-template-columns:1fr}
  .article-side{position:static;flex-direction:row;flex-wrap:wrap}
  .article-side .side-card{flex:1 1 280px}
  .section{padding:64px 0}
  :root{--section-gap:64px}
}
@media (max-width:767px){
  .container{padding:0 20px}
  .article-hero{padding:20px 0 32px}
  .article-head h1{margin:14px 0 14px}
  .hero-cover img{height:200px}
  .article-body{padding:28px 22px;font-size:16.5px;line-height:1.8}
  .article-body h2{font-size:1.25rem;margin:28px 0 14px}
  .article-body h3{font-size:1.08rem;margin:22px 0 10px}
  .cta-strip{padding:24px 22px;flex-direction:column;align-items:flex-start}
  .cta-actions{width:100%}
  .cta-actions .btn{flex:1 1 140px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px}
  .footer-brand{grid-column:1 / -1}
  .brand-text{font-size:16px}
  .brand-mark{width:34px;height:34px;font-size:16px;border-radius:10px}
  .scroll-track{grid-auto-columns:minmax(240px,80%)}
}
@media (max-width:520px){
  .section{padding:52px 0}
  .article-body{padding:22px 18px}
  .article-foot{flex-direction:column;align-items:stretch}
  .article-foot .btn{width:100%}
  .footer-grid{grid-template-columns:1fr}
  .footer-bottom{flex-direction:column}
}

/* roulang page: category1 */
:root{
  --brand:#2E6FB7;
  --brand-dark:#1F4E82;
  --brand-soft:#EAF2FB;
  --teal:#16A3A8;
  --gold:#D99A2B;
  --bg:#F7F9FC;
  --card:#FFFFFF;
  --text:#172B4D;
  --muted:#5E6C7B;
  --line:#E4EAF2;
  --radius-card:16px;
  --radius-btn:12px;
  --shadow-sm:0 4px 14px rgba(31,78,130,.06);
  --shadow-md:0 8px 24px rgba(31,78,130,.08);
  --shadow-lg:0 12px 28px rgba(31,78,130,.12);
  --section-gap:88px;
}

*{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;}
body{
  margin:0;
  font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC","Helvetica Neue",Arial,sans-serif;
  font-size:16px;
  line-height:1.75;
  color:var(--text);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;}
a{color:var(--brand);text-decoration:none;transition:color .2s ease;}
a:hover{color:var(--brand-dark);}
h1,h2,h3,h4{margin:0;line-height:1.35;font-weight:700;color:var(--text);}
p{margin:0 0 1em;color:var(--muted);}
ul{margin:0;padding:0;list-style:none;}
button{font-family:inherit;}
.container{width:100%;max-width:1240px;margin:0 auto;padding:0 24px;}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:46px;padding:0 22px;border-radius:var(--radius-btn);
  font-size:15px;font-weight:600;line-height:1;text-decoration:none;
  border:1px solid transparent;cursor:pointer;transition:all .22s ease;
  white-space:nowrap;
}
.btn-primary{background:var(--brand);border-color:var(--brand);color:#fff;box-shadow:0 6px 16px rgba(46,111,183,.22);}
.btn-primary:hover{background:var(--brand-dark);border-color:var(--brand-dark);color:#fff;box-shadow:0 10px 22px rgba(31,78,130,.26);transform:translateY(-1px);}
.btn-outline{background:#fff;border-color:#C9D8EA;color:var(--brand-dark);}
.btn-outline:hover{border-color:var(--brand);color:var(--brand);background:var(--brand-soft);transform:translateY(-1px);}
.btn-ghost{background:transparent;color:var(--muted);border-color:transparent;}
.btn-ghost:hover{color:var(--brand);background:var(--brand-soft);}
.btn-sm{height:40px;padding:0 16px;font-size:14px;border-radius:10px;}
.btn:focus-visible{outline:3px solid rgba(46,111,183,.32);outline-offset:2px;}
.btn:disabled,.btn.disabled{opacity:.5;cursor:not-allowed;transform:none;box-shadow:none;}

/* ---------- 标签与徽章 ---------- */
.badge-pill{
  display:inline-flex;align-items:center;gap:6px;
  padding:5px 12px;border-radius:999px;font-size:13px;font-weight:600;
  background:var(--brand-soft);color:var(--brand-dark);
}
.badge-teal{background:rgba(22,163,168,.12);color:#0F7B7F;}
.badge-gold{background:rgba(217,154,43,.14);color:#A8751A;}
.tag-row{display:flex;flex-wrap:wrap;gap:10px;}

/* ---------- 页头导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:100;
  background:#fff;border-bottom:1px solid var(--line);
  box-shadow:0 2px 12px rgba(31,78,130,.04);
}
.nav-wrap{display:flex;align-items:center;height:80px;gap:12px;}
.nav-side{display:flex;align-items:center;gap:4px;}
.nav-left{flex:1;}
.nav-right{flex:1;justify-content:flex-end;}
.nav-link{
  position:relative;padding:9px 12px;font-size:15px;color:var(--text);
  border-radius:8px;text-decoration:none;
}
.nav-link::after{
  content:"";position:absolute;left:12px;right:12px;bottom:2px;height:2px;
  border-radius:2px;background:var(--brand);
  transform:scaleX(0);transform-origin:left;transition:transform .25s 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;}
.brand{display:inline-flex;align-items:center;gap:10px;text-decoration:none;flex:0 0 auto;}
.brand-mark{
  width:38px;height:38px;border-radius:11px;
  display:inline-flex;align-items:center;justify-content:center;
  background:var(--brand);color:#fff;font-weight:700;font-size:18px;
  box-shadow:0 6px 14px rgba(46,111,183,.24);
}
.brand-text{font-size:19px;font-weight:700;color:var(--text);letter-spacing:.3px;}
.nav-toggle{
  display:none;width:44px;height:44px;border-radius:12px;
  border:1px solid var(--line);background:#fff;color:var(--brand-dark);
  align-items:center;justify-content:center;font-size:17px;cursor:pointer;
}
.nav-toggle:focus-visible{outline:3px solid rgba(46,111,183,.32);outline-offset:2px;}

/* ---------- 通用板块 ---------- */
main{display:block;}
.section{padding:var(--section-gap) 0;}
.section-tight{padding:56px 0;}
.section-head{margin-bottom:40px;}
.section-head .eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;font-weight:600;color:var(--teal);letter-spacing:1px;
  margin-bottom:12px;
}
.section-head h2{font-size:clamp(1.5rem,2.2vw,1.95rem);font-weight:650;letter-spacing:.2px;}
.section-head p{margin-top:12px;max-width:760px;font-size:16px;color:var(--muted);}
.head-split{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;flex-wrap:wrap;}

/* ---------- 分类 Hero ---------- */
.cat-hero{
  padding:64px 0 72px;
  background:linear-gradient(180deg,#FFFFFF 0%,var(--bg) 100%);
  border-bottom:1px solid var(--line);
}
.hero-grid{display:grid;grid-template-columns:minmax(0,7fr) minmax(0,5fr);gap:48px;align-items:center;}
.breadcrumb-line{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:14px;color:var(--muted);margin-bottom:20px;}
.breadcrumb-line a{color:var(--muted);}
.breadcrumb-line a:hover{color:var(--brand);text-decoration:underline;}
.breadcrumb-line .sep{color:#B9C6D6;}
.breadcrumb-line .current{color:var(--brand-dark);font-weight:600;}
.cat-hero h1{
  font-size:clamp(2rem,3.4vw,3rem);
  font-weight:700;letter-spacing:-.4px;margin-bottom:18px;
}
.cat-hero h1 .hl{color:var(--brand);}
.hero-sub{font-size:17px;line-height:1.85;color:var(--muted);max-width:620px;margin-bottom:26px;}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:30px;}
.hero-stats{display:flex;flex-wrap:wrap;gap:32px;padding-top:24px;border-top:1px solid var(--line);}
.stat-item .num{font-size:24px;font-weight:700;color:var(--brand-dark);line-height:1.2;}
.stat-item .lbl{font-size:13px;color:var(--muted);margin-top:4px;}
.hero-visual{position:relative;}
.hero-visual img{
  width:100%;height:400px;object-fit:cover;border-radius:20px;
  border:1px solid var(--line);box-shadow:var(--shadow-md);
}
.hero-float{
  position:absolute;left:-16px;bottom:-20px;
  background:#fff;border:1px solid var(--line);border-radius:14px;
  box-shadow:var(--shadow-lg);padding:16px 18px;max-width:260px;
}
.hero-float .t{font-size:13px;color:var(--muted);margin-bottom:6px;}
.hero-float .v{font-size:15px;font-weight:600;color:var(--brand-dark);}

/* ---------- 合集目录 ---------- */
.grid-catalog{display:grid;grid-template-columns:repeat(6,1fr);gap:24px;}
.cat-card{
  background:var(--card);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;
  display:flex;flex-direction:column;
}
.cat-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-lg);}
.cat-card .media{overflow:hidden;height:170px;background:var(--brand-soft);}
.cat-card .media img{width:100%;height:100%;object-fit:cover;transition:transform .5s ease;}
.cat-card:hover .media img{transform:scale(1.03);}
.cat-card .body{padding:20px 22px 22px;display:flex;flex-direction:column;flex:1;}
.cat-card h3{font-size:18px;font-weight:600;margin-bottom:10px;}
.cat-card p{font-size:14px;line-height:1.7;margin-bottom:16px;flex:1;}
.cat-card .meta{display:flex;align-items:center;justify-content:space-between;font-size:13px;color:var(--muted);}
.cat-card .go{color:var(--brand);font-weight:600;display:inline-flex;align-items:center;gap:6px;}
.cat-card .go i{transition:transform .25s ease;}
.cat-card:hover .go i{transform:translateX(3px);}
.span-4{grid-column:span 4;}
.span-3{grid-column:span 3;}
.span-2{grid-column:span 2;}
.cat-wide{flex-direction:row;}
.cat-wide .media{width:42%;height:auto;min-height:210px;}
.cat-wide .body{padding:24px 26px;}

/* ---------- 精选条目 ---------- */
.feature-grid{display:grid;grid-template-columns:minmax(0,5fr) minmax(0,7fr);gap:28px;align-items:start;}
.entry-lead{
  background:var(--card);border:1px solid var(--line);border-radius:var(--radius-card);
  overflow:hidden;box-shadow:var(--shadow-md);transition:transform .25s ease,box-shadow .25s ease;
}
.entry-lead:hover{transform:translateY(-4px);box-shadow:var(--shadow-lg);}
.entry-lead .media{height:230px;overflow:hidden;background:var(--brand-soft);}
.entry-lead .media img{width:100%;height:100%;object-fit:cover;transition:transform .5s ease;}
.entry-lead:hover .media img{transform:scale(1.03);}
.entry-lead .body{padding:24px;}
.entry-lead h3{font-size:21px;font-weight:650;margin-bottom:12px;}
.entry-lead p{font-size:15px;line-height:1.75;margin-bottom:18px;}
.meta-row{display:flex;flex-wrap:wrap;align-items:center;gap:12px;font-size:13px;color:var(--muted);}

.entry-list{display:flex;flex-direction:column;gap:16px;}
.entry-item{
  display:grid;grid-template-columns:150px minmax(0,1fr);gap:18px;
  background:var(--card);border:1px solid var(--line);border-radius:14px;
  padding:14px;box-shadow:var(--shadow-sm);transition:transform .22s ease,box-shadow .22s ease;
}
.entry-item:hover{transform:translateY(-3px);box-shadow:var(--shadow-md);}
.entry-item .thumb{height:100px;border-radius:10px;overflow:hidden;background:var(--brand-soft);}
.entry-item .thumb img{width:100%;height:100%;object-fit:cover;transition:transform .5s ease;}
.entry-item:hover .thumb img{transform:scale(1.04);}
.entry-item h3{font-size:16.5px;font-weight:600;margin-bottom:8px;}
.entry-item p{font-size:14px;line-height:1.7;margin-bottom:10px;color:var(--muted);}
.entry-item .meta-row{gap:10px;}

/* ---------- 相关推荐 ---------- */
.rail{
  display:flex;gap:22px;overflow-x:auto;padding:6px 4px 20px;
  scroll-snap-type:x mandatory;-webkit-overflow-scrolling:touch;
}
.rail::-webkit-scrollbar{height:8px;}
.rail::-webkit-scrollbar-track{background:var(--line);border-radius:8px;}
.rail::-webkit-scrollbar-thumb{background:#C2D3E8;border-radius:8px;}
.rail-card{
  flex:0 0 300px;scroll-snap-align:start;
  background:var(--card);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;
}
.rail-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-lg);}
.rail-card .media{height:160px;overflow:hidden;background:var(--brand-soft);}
.rail-card .media img{width:100%;height:100%;object-fit:cover;transition:transform .5s ease;}
.rail-card:hover .media img{transform:scale(1.04);}
.rail-card .body{padding:18px 20px 20px;}
.rail-card h3{font-size:16.5px;font-weight:600;margin-bottom:10px;}
.rail-card .meta-row{font-size:13px;gap:10px;}

/* ---------- 收藏 / 分享 ---------- */
.share-banner{
  background:var(--brand-soft);border:1px solid #D2E2F5;border-radius:18px;
  padding:26px 30px;display:flex;align-items:center;justify-content:space-between;
  gap:24px;flex-wrap:wrap;
}
.share-banner .left h2{font-size:19px;font-weight:650;margin-bottom:6px;}
.share-banner .left p{margin:0;font-size:14.5px;color:var(--muted);}
.share-actions{display:flex;gap:12px;flex-wrap:wrap;}
.btn-fav.is-on{background:var(--gold);border-color:var(--gold);color:#fff;}

/* ---------- 页脚 ---------- */
.site-footer{
  background:#FFFFFF;border-top:1px solid var(--line);
  padding:64px 0 28px;margin-top:24px;
}
.footer-grid{
  display:grid;grid-template-columns:1.6fr 1fr 1fr 1.2fr;gap:40px;
  padding-bottom:40px;border-bottom:1px solid var(--line);
}
.footer-brand p{font-size:14.5px;line-height:1.8;margin-top:16px;max-width:360px;}
.footer-title{font-size:15px;font-weight:650;margin-bottom:16px;color:var(--text);}
.footer-links li{margin-bottom:10px;}
.footer-links a{font-size:14.5px;color:var(--muted);}
.footer-links a:hover{color:var(--brand);}
.footer-contact li{display:flex;align-items:flex-start;gap:10px;font-size:14.5px;color:var(--muted);margin-bottom:12px;}
.footer-contact i{color:var(--teal);margin-top:5px;}
.footer-bottom{
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  flex-wrap:wrap;padding-top:22px;font-size:13.5px;color:var(--muted);
}
.footer-bottom a{color:var(--muted);}
.footer-bottom a:hover{color:var(--brand);}

/* ---------- 响应式 ---------- */
@media (max-width:1199.98px){
  .hero-grid{gap:36px;}
  .cat-card .media{height:150px;}
}
@media (max-width:991.98px){
  :root{--section-gap:64px;}
  .nav-wrap{display:grid;grid-template-columns:44px 1fr 44px;grid-template-areas:"toggle brand blank";height:70px;gap:0;}
  .nav-toggle{grid-area:toggle;display:inline-flex;}
  .brand{grid-area:brand;justify-self:center;}
  .nav-side{display:none;}
  body.nav-open .nav-wrap{
    grid-template-areas:"toggle brand blank" "left left left" "right right right";
    height:auto;padding-bottom:20px;row-gap:0;
  }
  body.nav-open .nav-left{
    grid-area:left;display:flex;flex-direction:column;align-items:stretch;gap:4px;
    padding-top:14px;border-top:1px solid var(--line);margin-top:14px;
  }
  body.nav-open .nav-right{
    grid-area:right;display:flex;flex-direction:column;align-items:stretch;gap:4px;justify-content:flex-start;
  }
  body.nav-open .nav-link{padding:13px 8px;font-size:17px;}
  body.nav-open .nav-link::after{display:none;}
  body.nav-open .nav-right .btn{width:100%;margin-top:10px;height:48px;}
  .hero-grid{grid-template-columns:1fr;gap:32px;}
  .hero-visual img{height:320px;}
  .hero-float{position:static;margin-top:18px;max-width:none;}
  .span-4,.span-3,.span-2{grid-column:span 6;}
  .cat-wide{flex-direction:column;}
  .cat-wide .media{width:100%;min-height:180px;height:190px;}
  .feature-grid{grid-template-columns:1fr;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
}
@media (max-width:767.98px){
  .container{padding:0 20px;}
  .cat-hero{padding:44px 0 52px;}
  .hero-stats{gap:22px;padding-top:20px;}
  .stat-item .num{font-size:20px;}
  .entry-item{grid-template-columns:1fr;}
  .entry-item .thumb{height:160px;width:100%;}
  .contact-form,.share-banner{padding:22px;}
  .share-actions .btn{flex:1 1 auto;}
  .footer-grid{grid-template-columns:1fr;gap:28px;}
  .footer-bottom{flex-direction:column;align-items:flex-start;}
}
@media (max-width:520px){
  .hero-actions .btn{width:100%;}
  .section-head h2{font-size:1.4rem;}
  .entry-lead h3{font-size:18px;}
  .rail-card{flex:0 0 82%;}
}

/* roulang page: category2 */
:root{
  --primary:#2E6FB7;
  --primary-deep:#1F4E82;
  --primary-soft:#EAF2FB;
  --accent:#16A3A8;
  --accent-soft:#E4F6F6;
  --gold:#D99A2B;
  --gold-soft:#FBF3E3;
  --bg:#F7F9FC;
  --card:#FFFFFF;
  --text:#172B4D;
  --muted:#5E6C7B;
  --border:#E4EAF2;
  --radius-card:16px;
  --radius-btn:12px;
  --radius-pill:999px;
  --shadow-1:0 8px 24px rgba(31,78,130,.08);
  --shadow-2:0 12px 28px rgba(31,78,130,.12);
  --section-gap:88px;
}

*{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  margin:0;
  font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC",Inter,system-ui,-apple-system,sans-serif;
  font-size:17px;
  line-height:1.75;
  color:var(--text);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border-style:none;}
a{color:var(--primary);text-decoration:none;transition:color .2s ease,background-color .2s ease,border-color .2s ease;}
a:hover{color:var(--primary-deep);}
h1,h2,h3,h4{margin:0;line-height:1.3;font-weight:650;color:var(--text);}
p{margin:0 0 1em;}
ul{margin:0;padding:0;list-style:none;}
:focus-visible{outline:3px solid rgba(46,111,183,.45);outline-offset:2px;border-radius:6px;}

.container{width:100%;max-width:1240px;margin:0 auto;padding:0 24px;}

/* ===== 按钮体系 ===== */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:46px;padding:0 22px;border-radius:var(--radius-btn);
  font-size:16px;font-weight:600;line-height:1.2;border:1px solid transparent;
  cursor:pointer;transition:all .22s ease;white-space:nowrap;
}
.btn-primary{background:var(--primary);color:#fff;border-color:var(--primary);}
.btn-primary:hover{background:var(--primary-deep);border-color:var(--primary-deep);color:#fff;box-shadow:0 10px 22px rgba(31,78,130,.22);}
.btn-outline{background:#fff;color:var(--primary);border-color:#C6DBF1;}
.btn-outline:hover{background:var(--primary-soft);color:var(--primary-deep);border-color:var(--primary);}
.btn-ghost{background:transparent;color:var(--muted);border-color:transparent;}
.btn-ghost:hover{background:#EEF3F9;color:var(--primary-deep);}
.btn-gold{background:#fff;color:#A97612;border-color:#EAD3A2;}
.btn-gold:hover{background:var(--gold-soft);color:#8C6110;border-color:var(--gold);}
.btn-sm{min-height:40px;padding:0 16px;font-size:14.5px;border-radius:10px;}
.btn[disabled],.btn.is-disabled{opacity:.55;cursor:not-allowed;box-shadow:none;}

/* ===== 顶部导航 ===== */
.site-header{
  position:sticky;top:0;z-index:1030;
  background:rgba(255,255,255,.96);
  border-bottom:1px solid var(--border);
  backdrop-filter:saturate(160%) blur(6px);
}
.nav-wrap{position:relative;display:flex;align-items:center;height:80px;gap:24px;}
.nav-side{display:flex;align-items:center;gap:22px;}
.nav-left{flex:1 1 0;}
.nav-right{flex:1 1 0;justify-content:flex-end;gap:16px;}
.nav-link{
  position:relative;color:#33415C;font-size:15.5px;font-weight:500;padding:6px 2px;
}
.nav-link::after{
  content:"";position:absolute;left:0;right:0;bottom:-2px;height:2px;
  background:var(--primary);border-radius:2px;transform:scaleX(0);transition:transform .22s ease;
}
.nav-link:hover{color:var(--primary);}
.nav-link:hover::after{transform:scaleX(1);}
.nav-link.active{color:var(--primary);font-weight:600;}
.nav-link.active::after{transform:scaleX(1);}
.brand{
  position:absolute;left:50%;transform:translateX(-50%);
  display:flex;align-items:center;gap:10px;color:var(--text);font-weight:700;font-size:18px;
}
.brand:hover{color:var(--primary-deep);}
.brand-mark{
  width:38px;height:38px;border-radius:11px;display:inline-flex;align-items:center;justify-content:center;
  background:var(--primary);color:#fff;font-size:18px;font-weight:700;letter-spacing:0;
  box-shadow:0 6px 16px rgba(46,111,183,.28);
}
.brand-text{white-space:nowrap;letter-spacing:.2px;}
.nav-toggle{
  display:none;width:46px;height:46px;border-radius:12px;border:1px solid var(--border);
  background:#fff;color:var(--text);font-size:18px;align-items:center;justify-content:center;
}
.nav-cta-mobile{display:none;}

.mobile-drawer{
  position:fixed;inset:0 0 auto 0;z-index:1040;background:#fff;
  border-bottom:1px solid var(--border);box-shadow:0 18px 34px rgba(31,78,130,.14);
  padding:18px 24px 26px;transform:translateY(-105%);transition:transform .3s ease;
}
.mobile-drawer.open{transform:translateY(0);}
.mobile-drawer a{
  display:flex;align-items:center;min-height:52px;font-size:17px;font-weight:600;
  color:#2A3852;border-bottom:1px solid #F0F4F9;
}
.mobile-drawer a.active{color:var(--primary);}
.mobile-drawer .btn{width:100%;margin-top:18px;}

/* ===== Hero ===== */
.page-hero{
  position:relative;padding:76px 0 72px;
  background:linear-gradient(180deg,#FFFFFF 0%,#F2F7FD 100%);
  border-bottom:1px solid var(--border);overflow:hidden;
}
.page-hero::before{
  content:"";position:absolute;right:-120px;top:-80px;width:420px;height:420px;border-radius:50%;
  background:radial-gradient(circle,rgba(22,163,168,.10) 0%,rgba(22,163,168,0) 68%);
}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;margin-bottom:18px;
  padding:6px 14px;border-radius:var(--radius-pill);
  background:var(--primary-soft);color:var(--primary-deep);
  font-size:13.5px;font-weight:600;letter-spacing:.4px;
}
.eyebrow i{color:var(--accent);}
.page-hero h1{
  font-size:clamp(2rem,3.4vw,3.05rem);font-weight:700;letter-spacing:-.5px;margin-bottom:18px;
}
.page-hero h1 .hl{color:var(--primary);}
.hero-sub{font-size:17.5px;color:var(--muted);max-width:560px;margin-bottom:26px;}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:30px;}
.hero-meta{display:flex;flex-wrap:wrap;gap:12px;}
.hero-meta li{
  background:#fff;border:1px solid var(--border);border-radius:14px;
  padding:12px 18px;min-width:126px;box-shadow:var(--shadow-1);
}
.hero-meta strong{display:block;font-size:22px;color:var(--primary-deep);font-weight:700;line-height:1.2;}
.hero-meta span{font-size:13px;color:var(--muted);}
.hero-visual{
  position:relative;margin:0;border-radius:20px;overflow:hidden;
  border:1px solid var(--border);box-shadow:var(--shadow-2);background:#fff;
}
.hero-visual img{width:100%;height:396px;object-fit:cover;}
.hero-visual figcaption{
  position:absolute;left:18px;right:18px;bottom:18px;
  background:rgba(255,255,255,.94);border-radius:12px;padding:12px 16px;
  font-size:13.5px;color:var(--muted);line-height:1.6;border-left:3px solid var(--accent);
}
.hero-badge{
  position:absolute;top:16px;left:16px;background:#fff;color:var(--primary-deep);
  font-size:13px;font-weight:600;padding:6px 14px;border-radius:var(--radius-pill);
  box-shadow:var(--shadow-1);
}

/* ===== 板块通用 ===== */
.section{padding:var(--section-gap) 0;}
.section-alt{background:#fff;border-top:1px solid var(--border);border-bottom:1px solid var(--border);}
.section-head{max-width:760px;margin-bottom:44px;}
.section-num{
  display:inline-block;font-size:13px;font-weight:700;letter-spacing:2px;
  color:var(--accent);margin-bottom:10px;text-transform:uppercase;
}
.section-head h2{font-size:clamp(1.65rem,2.4vw,2rem);font-weight:650;margin-bottom:12px;}
.section-head p{color:var(--muted);font-size:16.5px;margin:0;}

/* ===== 合集目录：左目录 + 右卡片流 ===== */
.toc-card{
  background:#fff;border:1px solid var(--border);border-radius:var(--radius-card);
  box-shadow:var(--shadow-1);padding:24px;position:sticky;top:104px;
}
.toc-card h3{font-size:18px;margin-bottom:6px;}
.toc-card .toc-note{font-size:13.5px;color:var(--muted);margin-bottom:16px;}
.toc-list li + li{border-top:1px dashed #EDF2F8;}
.toc-list a{
  display:flex;align-items:center;justify-content:space-between;gap:10px;
  padding:13px 2px;font-size:15.5px;color:#2A3852;font-weight:500;
}
.toc-list a:hover{color:var(--primary);}
.toc-list a i{font-size:13px;color:#B9C6D6;}
.toc-list a:hover i{color:var(--primary);}
.toc-foot{margin-top:18px;padding-top:16px;border-top:1px solid var(--border);font-size:13.5px;color:var(--muted);}

.collection-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:24px;}
.collection-card{
  background:var(--card);border:1px solid var(--border);border-radius:var(--radius-card);
  overflow:hidden;box-shadow:var(--shadow-1);transition:transform .26s ease,box-shadow .26s ease;
  display:flex;flex-direction:column;
}
.collection-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-2);}
.collection-thumb{overflow:hidden;height:150px;background:#EDF3FA;}
.collection-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .4s ease;}
.collection-card:hover .collection-thumb img{transform:scale(1.03);}
.collection-body{padding:20px;display:flex;flex-direction:column;gap:8px;flex:1;}
.collection-body h3{font-size:17.5px;font-weight:600;}
.collection-body p{font-size:14.5px;color:var(--muted);margin:0;}
.collection-meta{display:flex;flex-wrap:wrap;gap:8px;align-items:center;margin-top:auto;}
.chip{
  display:inline-flex;align-items:center;gap:6px;padding:4px 11px;border-radius:var(--radius-pill);
  font-size:12.5px;font-weight:600;background:var(--primary-soft);color:var(--primary-deep);
}
.chip-teal{background:var(--accent-soft);color:#0E7B7F;}
.chip-gold{background:var(--gold-soft);color:#96670E;}
.chip-plain{background:#F1F5FA;color:var(--muted);}

/* ===== 流程步骤 ===== */
.steps{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:22px;counter-reset:step;}
.step{
  position:relative;background:#fff;border:1px solid var(--border);border-radius:var(--radius-card);
  padding:26px 22px 22px;box-shadow:var(--shadow-1);transition:transform .24s ease,box-shadow .24s ease;
}
.step:hover{transform:translateY(-4px);box-shadow:var(--shadow-2);}
.step::before{
  counter-increment:step;content:"0" counter(step);
  position:absolute;top:-14px;left:22px;
  background:var(--primary);color:#fff;font-size:13px;font-weight:700;letter-spacing:1px;
  padding:4px 12px;border-radius:var(--radius-pill);
}
.step h3{font-size:17px;margin:10px 0 8px;}
.step p{font-size:14.5px;color:var(--muted);margin:0;}

/* ===== 精选条目 ===== */
.entry-list{display:flex;flex-direction:column;gap:20px;}
.entry{
  display:grid;grid-template-columns:220px 1fr;gap:22px;align-items:stretch;
  background:#fff;border:1px solid var(--border);border-radius:var(--radius-card);
  padding:18px;box-shadow:var(--shadow-1);transition:transform .24s ease,box-shadow .24s ease;
}
.entry:hover{transform:translateY(-4px);box-shadow:var(--shadow-2);}
.entry-thumb{border-radius:12px;overflow:hidden;background:#EDF3FA;min-height:140px;}
.entry-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .4s ease;}
.entry:hover .entry-thumb img{transform:scale(1.03);}
.entry-body{display:flex;flex-direction:column;gap:10px;padding:4px 4px 4px 0;}
.entry-body h3{font-size:19px;font-weight:600;}
.entry-body .summary{
  font-size:15px;color:var(--muted);margin:0;
  display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden;
}
.entry-foot{display:flex;flex-wrap:wrap;gap:14px;align-items:center;margin-top:auto;font-size:13.5px;color:var(--muted);}
.entry-foot .more{color:var(--primary);font-weight:600;}
.entry-foot .more i{font-size:12px;}

/* ===== 确认清单 ===== */
.check-panel{
  background:#fff;border:1px solid var(--border);border-radius:var(--radius-card);
  padding:32px;box-shadow:var(--shadow-1);
}
.check-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:16px 32px;}
.check-item{display:flex;gap:12px;align-items:flex-start;padding:12px 0;border-bottom:1px dashed #EDF2F8;}
.check-item i{color:var(--accent);font-size:16px;margin-top:4px;}
.check-item strong{display:block;font-size:15.5px;margin-bottom:3px;font-weight:600;}
.check-item span{font-size:14px;color:var(--muted);}

/* ===== 相关推荐横向滚动 ===== */
.scroll-rail{
  display:grid;grid-auto-flow:column;grid-auto-columns:minmax(260px,300px);
  gap:20px;overflow-x:auto;padding:6px 4px 22px;scroll-snap-type:x mandatory;
}
.scroll-rail::-webkit-scrollbar{height:8px;}
.scroll-rail::-webkit-scrollbar-thumb{background:#D5E2F1;border-radius:8px;}
.reco-card{
  scroll-snap-align:start;display:flex;flex-direction:column;
  background:#fff;border:1px solid var(--border);border-radius:var(--radius-card);
  overflow:hidden;box-shadow:var(--shadow-1);transition:transform .24s ease,box-shadow .24s ease;
}
.reco-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-2);}
.reco-thumb{height:142px;overflow:hidden;background:#EDF3FA;}
.reco-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .4s ease;}
.reco-card:hover .reco-thumb img{transform:scale(1.03);}
.reco-body{padding:18px;display:flex;flex-direction:column;gap:8px;flex:1;}
.reco-body h3{font-size:16.5px;font-weight:600;}
.reco-body p{font-size:14px;color:var(--muted);margin:0;}
.reco-body .muted-line{font-size:13px;color:#8595A6;margin-top:auto;}

/* ===== 收藏 / 分享 CTA ===== */
.cta-band{
  background:var(--primary-soft);border:1px solid #D5E5F7;border-radius:18px;
  padding:26px 30px;display:flex;flex-wrap:wrap;gap:20px;align-items:center;justify-content:space-between;
}
.cta-band .cta-text{max-width:640px;}
.cta-band h2{font-size:20px;margin-bottom:6px;}
.cta-band p{margin:0;font-size:15px;color:var(--muted);}
.cta-actions{display:flex;gap:12px;flex-wrap:wrap;}

/* ===== 页脚 ===== */
.site-footer{background:#16243C;color:#C8D4E4;padding:64px 0 26px;margin-top:0;}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.2fr;gap:36px;}
.site-footer .brand{position:static;transform:none;color:#fff;margin-bottom:16px;}
.site-footer .brand:hover{color:#fff;}
.site-footer .brand-mark{background:#2E6FB7;}
.footer-brand p{font-size:14.5px;color:#9FB2C9;line-height:1.8;margin:0;}
.footer-title{font-size:15px;color:#fff;margin-bottom:16px;font-weight:600;}
.footer-links li + li{margin-top:10px;}
.footer-links a,.footer-contact li{font-size:14.5px;color:#9FB2C9;}
.footer-links a:hover{color:#fff;}
.footer-contact li{display:flex;gap:10px;align-items:flex-start;margin-bottom:12px;line-height:1.6;}
.footer-contact i{color:#5FA8E8;margin-top:4px;}
.footer-bottom{
  margin-top:44px;padding-top:20px;border-top:1px solid rgba(255,255,255,.12);
  display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;
  font-size:13.5px;color:#8296AE;
}

/* ===== 响应式 ===== */
@media (max-width:1199.98px){
  .collection-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
  .steps{grid-template-columns:repeat(2,minmax(0,1fr));}
}
@media (max-width:991.98px){
  .nav-side{display:none;}
  .nav-toggle{display:inline-flex;order:-1;}
  .nav-cta-mobile{display:inline-flex;}
  .nav-wrap{height:72px;justify-content:space-between;}
  .brand{font-size:16.5px;}
  .brand-mark{width:34px;height:34px;border-radius:10px;font-size:16px;}
  .page-hero{padding:56px 0 56px;}
  .hero-visual img{height:320px;}
  .toc-card{position:static;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px;}
}
@media (max-width:767.98px){
  body{font-size:16px;}
  .container{padding:0 20px;}
  :root{--section-gap:60px;}
  .section{padding:var(--section-gap) 0;}
  .hero-visual img{height:250px;}
  .hero-visual figcaption{position:static;border-radius:0;border-left:3px solid var(--accent);background:#fff;}
  .collection-grid{grid-template-columns:1fr;}
  .steps{grid-template-columns:1fr;}
  .entry{grid-template-columns:1fr;padding:16px;}
  .entry-thumb{min-height:180px;height:180px;}
  .check-grid{grid-template-columns:1fr;}
  .check-panel{padding:22px;}
  .cta-band{padding:22px;flex-direction:column;align-items:flex-start;}
  .cta-actions{width:100%;}
  .cta-actions .btn{flex:1 1 46%;}
  .footer-grid{grid-template-columns:1fr;}
  .footer-bottom{flex-direction:column;}
}
@media (max-width:575.98px){
  .hero-actions .btn{width:100%;}
  .hero-meta li{flex:1 1 44%;min-width:0;}
  .scroll-rail{grid-auto-columns:minmax(230px,84%);}
  .brand-text{font-size:15.5px;}
}

/* roulang page: category3 */
:root{
  --c-primary:#2E6FB7;
  --c-primary-dark:#1F4E82;
  --c-primary-soft:#EAF2FB;
  --c-teal:#16A3A8;
  --c-gold:#D99A2B;
  --c-bg:#F7F9FC;
  --c-card:#FFFFFF;
  --c-text:#172B4D;
  --c-muted:#5E6C7B;
  --c-border:#E4EAF2;
  --r-card:16px;
  --r-btn:12px;
  --r-img:14px;
  --sh-card:0 8px 24px rgba(31,78,130,.08);
  --sh-card-hover:0 12px 28px rgba(31,78,130,.12);
  --sh-soft:0 4px 14px rgba(31,78,130,.06);
  --sp-section:88px;
  --maxw:1240px;
}
*{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--c-bg);
  color:var(--c-text);
  font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC","Hiragino Sans GB",system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:16px;
  line-height:1.75;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;}
a{color:var(--c-primary);text-decoration:none;transition:color .2s ease,opacity .2s ease;}
a:hover{color:var(--c-primary-dark);}
ul,ol{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4{margin:0;color:var(--c-text);font-weight:700;line-height:1.35;}
p{margin:0;}
button{font-family:inherit;}
:focus-visible{outline:3px solid rgba(46,111,183,.35);outline-offset:2px;border-radius:8px;}

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

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:46px;padding:0 22px;border-radius:var(--r-btn);
  font-size:15px;font-weight:600;line-height:1;cursor:pointer;
  border:1px solid transparent;transition:all .22s ease;white-space:nowrap;
}
.btn-primary{background:var(--c-primary);color:#fff;box-shadow:0 6px 16px rgba(46,111,183,.22);}
.btn-primary:hover,.btn-primary:focus{background:var(--c-primary-dark);color:#fff;box-shadow:0 10px 22px rgba(31,78,130,.26);transform:translateY(-1px);}
.btn-outline{background:#fff;color:var(--c-primary);border-color:rgba(46,111,183,.42);}
.btn-outline:hover,.btn-outline:focus{background:var(--c-primary-soft);color:var(--c-primary-dark);border-color:var(--c-primary);}
.btn-ghost{background:transparent;color:var(--c-muted);}
.btn-ghost:hover{background:#fff;color:var(--c-primary);}
.btn-sm{min-height:40px;padding:0 18px;font-size:14px;border-radius:10px;}
.btn:disabled,.btn.is-disabled{opacity:.5;cursor:not-allowed;transform:none;box-shadow:none;}

/* ============ 头部导航 ============ */
.site-header{
  position:sticky;top:0;z-index:1040;
  background:rgba(255,255,255,.96);
  border-bottom:1px solid var(--c-border);
  backdrop-filter:saturate(160%) blur(6px);
}
.nav-wrap{
  position:relative;display:flex;align-items:center;justify-content:space-between;
  min-height:80px;gap:16px;
}
.nav-side{display:flex;align-items:center;gap:26px;}
.nav-side.nav-left{justify-content:flex-start;flex:1 1 0;}
.nav-side.nav-right{justify-content:flex-end;flex:1 1 0;}
.nav-link{
  position:relative;color:#3C4C5F;font-size:15px;font-weight:500;
  padding:8px 2px;min-height:44px;display:inline-flex;align-items:center;
}
.nav-link::after{
  content:"";position:absolute;left:0;right:0;bottom:2px;height:2px;
  background:var(--c-primary);border-radius:2px;transform:scaleX(0);
  transform-origin:center;transition:transform .24s ease;
}
.nav-link:hover{color:var(--c-primary);}
.nav-link:hover::after{transform:scaleX(1);}
.nav-link.active{color:var(--c-primary);font-weight:600;}
.nav-link.active::after{transform:scaleX(1);}
.brand{
  display:inline-flex;align-items:center;gap:10px;
  color:var(--c-text);font-weight:700;font-size:18px;letter-spacing:.2px;
  flex:0 0 auto;
}
.brand:hover{color:var(--c-primary-dark);}
.brand-mark{
  width:36px;height:36px;border-radius:10px;
  background:var(--c-primary);color:#fff;
  display:inline-flex;align-items:center;justify-content:center;
  font-size:17px;font-weight:700;letter-spacing:0;
  box-shadow:0 6px 14px rgba(46,111,183,.26);
}
.brand-text{white-space:nowrap;}
.nav-toggle{
  display:none;align-items:center;justify-content:center;
  width:44px;height:44px;border-radius:12px;
  border:1px solid var(--c-border);background:#fff;color:var(--c-primary);
  font-size:17px;cursor:pointer;transition:all .2s ease;
}
.nav-toggle:hover{background:var(--c-primary-soft);}
.mobile-drawer{
  display:none;border-top:1px solid var(--c-border);background:#fff;
  padding:14px 24px 24px;
}
.mobile-drawer.open{display:block;}
.mobile-drawer a{
  display:flex;align-items:center;justify-content:space-between;
  padding:14px 4px;font-size:17px;font-weight:600;color:#33445A;
  border-bottom:1px solid var(--c-border);min-height:52px;
}
.mobile-drawer a:hover,.mobile-drawer a.active{color:var(--c-primary);}
.mobile-drawer .drawer-cta{margin-top:18px;border-bottom:none;}
.mobile-drawer .drawer-cta .btn{width:100%;}

/* ============ 面包屑 ============ */
.crumb-bar{padding:22px 0 0;}
.crumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13.5px;color:var(--c-muted);}
.crumb a{color:var(--c-muted);}
.crumb a:hover{color:var(--c-primary);text-decoration:underline;}
.crumb .sep{color:#B6C2D1;}
.crumb .current{color:var(--c-primary);font-weight:600;}

/* ============ Hero ============ */
.hero{padding:32px 0 var(--sp-section);}
.hero-grid{display:grid;grid-template-columns:7fr 5fr;gap:44px;align-items:center;}
.hero-tag{
  display:inline-flex;align-items:center;gap:8px;
  background:var(--c-primary-soft);color:var(--c-primary-dark);
  border-radius:999px;padding:7px 15px;font-size:13px;font-weight:600;
  margin-bottom:20px;
}
.hero h1{
  font-size:clamp(2rem,3.4vw,3rem);font-weight:700;letter-spacing:-.2px;
  margin-bottom:18px;
}
.hero h1 .hl{color:var(--c-primary);}
.hero-sub{font-size:17px;color:var(--c-muted);max-width:620px;margin-bottom:26px;}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:30px;}
.hero-meta{display:flex;flex-wrap:wrap;gap:12px 28px;align-items:center;padding-top:22px;border-top:1px dashed var(--c-border);}
.hero-meta .meta-item{display:flex;align-items:center;gap:9px;font-size:13.5px;color:var(--c-muted);}
.hero-meta .meta-item i{color:var(--c-teal);}
.hero-meta .meta-item strong{color:var(--c-text);font-weight:700;font-size:15px;}
.hero-visual{position:relative;}
.hero-visual img{
  width:100%;height:388px;object-fit:cover;border-radius:20px;
  box-shadow:var(--sh-card);
}
.hero-badge{
  position:absolute;left:-16px;bottom:24px;background:#fff;
  border:1px solid var(--c-border);border-radius:14px;
  box-shadow:var(--sh-card);padding:14px 18px;display:flex;gap:12px;align-items:center;
}
.hero-badge i{
  width:38px;height:38px;border-radius:11px;background:var(--c-primary-soft);
  color:var(--c-primary);display:inline-flex;align-items:center;justify-content:center;font-size:16px;
}
.hero-badge span{display:block;font-size:12.5px;color:var(--c-muted);line-height:1.5;}
.hero-badge strong{display:block;font-size:15px;color:var(--c-text);}

/* ============ 板块通用 ============ */
.section{padding:var(--sp-section) 0 0;}
.section-head{margin-bottom:38px;max-width:760px;}
.section-num{
  display:inline-flex;align-items:center;gap:10px;font-size:13px;font-weight:700;
  color:var(--c-teal);letter-spacing:1.5px;margin-bottom:12px;
}
.section-num::before{content:"";width:26px;height:2px;background:var(--c-teal);border-radius:2px;}
.section-head h2{font-size:clamp(1.55rem,2.2vw,1.95rem);font-weight:700;margin-bottom:12px;}
.section-head p{color:var(--c-muted);font-size:15.5px;}
.section-head.row-head{display:flex;justify-content:space-between;align-items:flex-end;gap:24px;max-width:none;flex-wrap:wrap;}
.section-head.row-head .head-text{max-width:720px;}

/* ============ 合集目录（非对称网格） ============ */
.coll-grid{display:grid;grid-template-columns:repeat(6,1fr);gap:26px;}
.coll-card{
  grid-column:span 3;
  background:var(--c-card);border:1px solid var(--c-border);border-radius:var(--r-card);
  overflow:hidden;box-shadow:var(--sh-card);display:flex;flex-direction:column;
  transition:transform .26s ease,box-shadow .26s ease;
}
.coll-card.small{grid-column:span 2;}
.coll-card:hover{transform:translateY(-4px);box-shadow:var(--sh-card-hover);}
.coll-thumb{overflow:hidden;position:relative;background:var(--c-primary-soft);}
.coll-card.large .coll-thumb{height:230px;}
.coll-card.small .coll-thumb{height:150px;}
.coll-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .4s ease;}
.coll-card:hover .coll-thumb img{transform:scale(1.03);}
.coll-body{padding:20px 22px 22px;display:flex;flex-direction:column;flex:1;}
.coll-body h3{font-size:18px;font-weight:700;margin-bottom:10px;}
.coll-card.small .coll-body h3{font-size:16.5px;}
.coll-body p{font-size:14px;color:var(--c-muted);margin-bottom:16px;}
.coll-foot{
  margin-top:auto;display:flex;align-items:center;justify-content:space-between;
  gap:12px;font-size:13px;color:var(--c-muted);
  padding-top:14px;border-top:1px solid var(--c-border);
}
.coll-foot .go{color:var(--c-primary);font-weight:600;display:inline-flex;align-items:center;gap:6px;}
.coll-card:hover .coll-foot .go{gap:10px;}

/* ============ 精选条目 ============ */
.feat-wrap{display:grid;grid-template-columns:1fr;gap:26px;}
.feat-lead{
  background:var(--c-card);border:1px solid var(--c-border);border-radius:var(--r-card);
  overflow:hidden;box-shadow:var(--sh-card);display:grid;grid-template-columns:6fr 5fr;
  transition:transform .26s ease,box-shadow .26s ease;
}
.feat-lead:hover{transform:translateY(-4px);box-shadow:var(--sh-card-hover);}
.feat-lead .lead-thumb{overflow:hidden;background:var(--c-primary-soft);min-height:280px;}
.feat-lead .lead-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .4s ease;}
.feat-lead:hover .lead-thumb img{transform:scale(1.03);}
.feat-lead .lead-body{padding:30px 30px 26px;display:flex;flex-direction:column;}
.feat-lead h3{font-size:22px;margin:14px 0 12px;}
.feat-lead p{color:var(--c-muted);font-size:15px;margin-bottom:20px;}
.meta-row{display:flex;flex-wrap:wrap;align-items:center;gap:12px;font-size:13px;color:var(--c-muted);}
.badge-cat{
  background:var(--c-primary-soft);color:var(--c-primary-dark);
  border-radius:999px;padding:5px 13px;font-size:12.5px;font-weight:600;
}
.badge-cat.teal{background:rgba(22,163,168,.12);color:#0F7C80;}
.badge-cat.gold{background:rgba(217,154,43,.14);color:#A97413;}
.feat-lead .meta-row{margin-top:auto;padding-top:18px;border-top:1px solid var(--c-border);}
.feat-list{display:grid;grid-template-columns:repeat(2,1fr);gap:26px;}
.feat-card{
  background:var(--c-card);border:1px solid var(--c-border);border-radius:var(--r-card);
  overflow:hidden;box-shadow:var(--sh-card);display:grid;grid-template-columns:150px 1fr;
  transition:transform .26s ease,box-shadow .26s ease;
}
.feat-card:hover{transform:translateY(-4px);box-shadow:var(--sh-card-hover);}
.feat-card .thumb{overflow:hidden;background:var(--c-primary-soft);}
.feat-card .thumb img{width:100%;height:100%;object-fit:cover;transition:transform .4s ease;}
.feat-card:hover .thumb img{transform:scale(1.04);}
.feat-card .body{padding:20px 22px 18px;display:flex;flex-direction:column;}
.feat-card h3{font-size:16.5px;margin:10px 0 9px;}
.feat-card p{font-size:13.5px;color:var(--c-muted);margin-bottom:14px;}
.feat-card .meta-row{margin-top:auto;font-size:12.5px;}

/* ============ FAQ ============ */
.faq-layout{display:grid;grid-template-columns:4fr 8fr;gap:36px;align-items:start;}
.faq-aside{
  background:var(--c-card);border:1px solid var(--c-border);border-radius:var(--r-card);
  padding:26px 24px;box-shadow:var(--sh-soft);position:sticky;top:104px;
}
.faq-aside h3{font-size:17px;margin-bottom:14px;}
.faq-aside ul{display:flex;flex-direction:column;gap:4px;margin-bottom:20px;}
.faq-aside li a{
  display:flex;align-items:center;gap:10px;padding:10px 4px;font-size:14.5px;
  color:#3C4C5F;border-bottom:1px solid var(--c-border);min-height:44px;
}
.faq-aside li a i{color:var(--c-teal);font-size:12px;}
.faq-aside li a:hover{color:var(--c-primary);}
.faq-aside .tip{
  background:var(--c-primary-soft);border-radius:12px;padding:14px 16px;
  font-size:13px;color:var(--c-primary-dark);line-height:1.7;
}
.accordion-item{
  background:var(--c-card);border:1px solid var(--c-border) !important;
  border-radius:var(--r-card) !important;margin-bottom:14px;overflow:hidden;
  box-shadow:var(--sh-soft);
}
.accordion-button{
  background:var(--c-card);color:var(--c-text);
  font-size:15.5px;font-weight:600;padding:20px 56px 20px 22px;
  border-radius:var(--r-card) !important;box-shadow:none !important;
  line-height:1.55;
}
.accordion-button:not(.collapsed){background:var(--c-primary-soft);color:var(--c-primary-dark);}
.accordion-button:focus{border-color:transparent;box-shadow:none !important;outline:3px solid rgba(46,111,183,.28);outline-offset:-3px;}
.accordion-button::after{
  background-image:none;content:"\f067";font-family:"Font Awesome 6 Free";font-weight:900;
  font-size:12px;color:var(--c-primary);
  width:28px;height:28px;border-radius:50%;background:rgba(46,111,183,.1);
  display:flex;align-items:center;justify-content:center;
  transition:transform .25s ease,background .25s ease;
}
.accordion-button:not(.collapsed)::after{transform:rotate(45deg);background:rgba(46,111,183,.18);}
.accordion-body{padding:6px 22px 22px;font-size:14.5px;color:var(--c-muted);line-height:1.8;}
.accordion-body strong{color:var(--c-text);}

/* ============ 相关推荐（横向滚动） ============ */
.scroll-rail{
  display:flex;gap:24px;overflow-x:auto;padding:6px 4px 22px;
  scroll-snap-type:x mandatory;-webkit-overflow-scrolling:touch;
}
.scroll-rail::-webkit-scrollbar{height:8px;}
.scroll-rail::-webkit-scrollbar-thumb{background:#CFDBE8;border-radius:99px;}
.scroll-rail::-webkit-scrollbar-track{background:transparent;}
.rail-card{
  flex:0 0 300px;scroll-snap-align:start;background:var(--c-card);
  border:1px solid var(--c-border);border-radius:var(--r-card);overflow:hidden;
  box-shadow:var(--sh-card);display:flex;flex-direction:column;
  transition:transform .26s ease,box-shadow .26s ease;
}
.rail-card:hover{transform:translateY(-4px);box-shadow:var(--sh-card-hover);}
.rail-thumb{height:160px;overflow:hidden;background:var(--c-primary-soft);}
.rail-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .4s ease;}
.rail-card:hover .rail-thumb img{transform:scale(1.03);}
.rail-body{padding:18px 20px 20px;display:flex;flex-direction:column;flex:1;}
.rail-body h3{font-size:16px;margin:10px 0 8px;}
.rail-body p{font-size:13.5px;color:var(--c-muted);margin-bottom:14px;}
.rail-body .meta-row{margin-top:auto;font-size:12.5px;}

/* ============ 收藏/分享 CTA ============ */
.cta-band{
  margin-top:var(--sp-section);
  background:var(--c-primary-soft);border:1px solid rgba(46,111,183,.18);
  border-radius:20px;padding:30px 34px;
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:22px;
}
.cta-band .cta-text h2{font-size:20px;margin-bottom:8px;}
.cta-band .cta-text p{font-size:14.5px;color:var(--c-muted);max-width:640px;}
.cta-actions{display:flex;flex-wrap:wrap;gap:12px;}
.btn-gold{background:#fff;color:#A97413;border-color:rgba(217,154,43,.5);}
.btn-gold:hover,.btn-gold:focus{background:rgba(217,154,43,.12);color:#8F6110;border-color:var(--c-gold);}

/* ============ 页脚 ============ */
.site-footer{
  margin-top:var(--sp-section);background:#14263C;color:#C8D4E2;padding:64px 0 26px;
}
.site-footer .brand{color:#fff;}
.site-footer .brand-text{color:#fff;}
.site-footer .brand:hover{color:#fff;}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.2fr;gap:40px;}
.footer-brand p{font-size:14px;line-height:1.85;color:#9FB0C4;margin-top:18px;max-width:360px;}
.footer-title{font-size:15px;color:#fff;font-weight:700;margin-bottom:18px;}
.footer-links{display:flex;flex-direction:column;gap:2px;}
.footer-links a,.footer-contact li{
  display:flex;align-items:center;gap:10px;font-size:14px;color:#9FB0C4;
  padding:7px 0;min-height:40px;transition:color .2s ease,gap .2s ease;
}
.footer-links a:hover{color:#fff;gap:14px;}
.footer-contact i{color:var(--c-teal);}
.footer-bottom{
  margin-top:44px;padding-top:22px;border-top:1px solid rgba(255,255,255,.12);
  display:flex;flex-wrap:wrap;gap:12px 26px;justify-content:space-between;
  font-size:13px;color:#8296AC;
}

/* ============ 响应式 ============ */
@media (max-width:1200px){
  :root{--sp-section:80px;}
  .hero-grid{gap:34px;}
  .hero-visual img{height:340px;}
  .nav-side{gap:20px;}
  .feat-card{grid-template-columns:130px 1fr;}
}
@media (max-width:991px){
  .nav-side.nav-left,.nav-side.nav-right{display:none;}
  .nav-wrap{justify-content:space-between;min-height:74px;}
  .nav-toggle{display:inline-flex;}
  .brand{position:absolute;left:50%;transform:translateX(-50%);}
  .hero{padding:24px 0 64px;}
  .hero-grid{grid-template-columns:1fr;gap:32px;}
  .hero-sub{max-width:none;}
  .hero-visual img{height:300px;}
  .hero-badge{left:16px;bottom:-16px;}
  .coll-grid{grid-template-columns:repeat(4,1fr);}
  .coll-card{grid-column:span 4 !important;}
  .coll-card.large .coll-thumb{height:200px;}
  .feat-lead{grid-template-columns:1fr;}
  .feat-lead .lead-thumb{min-height:210px;}
  .feat-list{grid-template-columns:1fr;}
  .faq-layout{grid-template-columns:1fr;gap:26px;}
  .faq-aside{position:static;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
}
@media (max-width:767px){
  :root{--sp-section:60px;}
  .container{padding:0 20px;}
  .hero h1{font-size:clamp(1.7rem,6vw,2.1rem);}
  .hero-sub{font-size:15.5px;}
  .hero-actions .btn{width:100%;}
  .hero-visual img{height:230px;border-radius:16px;}
  .feat-card{grid-template-columns:1fr;}
  .feat-card .thumb{height:170px;}
  .feat-lead .lead-body{padding:22px 20px;}
  .feat-lead h3{font-size:19px;}
  .rail-card{flex:0 0 82%;}
  .cta-band{padding:24px 20px;}
  .cta-actions{width:100%;}
  .cta-actions .btn{flex:1 1 auto;}
  .footer-grid{grid-template-columns:1fr;gap:26px;}
  .footer-bottom{flex-direction:column;gap:8px;}
}
@media (max-width:520px){
  .hero-meta{gap:10px 18px;}
  .section-head.row-head{align-items:flex-start;}
  .rail-card{flex:0 0 88%;}
}

/* roulang page: category4 */
:root{
  --primary:#2E6FB7;
  --primary-dark:#1F4E82;
  --primary-soft:#EAF2FB;
  --accent:#16A3A8;
  --gold:#D99A2B;
  --bg:#F7F9FC;
  --card:#FFFFFF;
  --text:#172B4D;
  --muted:#5E6C7B;
  --line:#E4EAF2;
  --radius-card:16px;
  --radius-btn:12px;
  --radius-pill:999px;
  --shadow-sm:0 8px 24px rgba(31,78,130,.08);
  --shadow-md:0 12px 28px rgba(31,78,130,.12);
  --shell:1240px;
}

*{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;}
body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC","Hiragino Sans GB",-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,sans-serif;
  font-size:16px;
  line-height:1.75;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;height:auto;}
a{color:var(--primary);text-decoration:none;transition:color .2s ease,opacity .2s ease;}
a:hover,a:focus{color:var(--primary-dark);}
p{margin:0 0 1em;}
h1,h2,h3,h4{margin:0;color:var(--text);line-height:1.35;}
ul,ol{margin:0;padding:0;list-style:none;}
button{font-family:inherit;}
:focus-visible{outline:3px solid rgba(46,111,183,.35);outline-offset:2px;border-radius:6px;}

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

/* ---------- 顶部导航 ---------- */
.site-header{
  position:sticky;
  top:0;
  z-index:1030;
  background:rgba(255,255,255,.97);
  border-bottom:1px solid var(--line);
  backdrop-filter:saturate(180%) blur(8px);
}
.nav-wrap{
  display:grid;
  grid-template-columns:1fr auto 1fr;
  align-items:center;
  gap:18px;
  min-height:80px;
}
.nav-side{display:flex;align-items:center;gap:26px;}
.nav-right{justify-content:flex-end;}
.nav-link{
  position:relative;
  display:inline-flex;
  align-items:center;
  min-height:44px;
  font-size:15px;
  color:#33425B;
  letter-spacing:.2px;
  white-space:nowrap;
}
.nav-link::after{
  content:"";
  position:absolute;
  left:0;
  right:0;
  bottom:8px;
  height:2px;
  background:var(--primary);
  border-radius:2px;
  transform:scaleX(0);
  transform-origin:left center;
  transition:transform .22s ease;
}
.nav-link:hover{color:var(--primary);}
.nav-link:hover::after{transform:scaleX(1);}
.nav-link.active{color:var(--primary);font-weight:600;}
.nav-link.active::after{transform:scaleX(1);}

.brand{
  display:inline-flex;
  align-items:center;
  gap:10px;
  font-weight:700;
  color:var(--text);
  letter-spacing:.3px;
}
.brand:hover{color:var(--text);}
.brand-mark{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  width:38px;
  height:38px;
  border-radius:12px;
  background:var(--primary);
  color:#fff;
  font-size:17px;
  font-weight:700;
  box-shadow:0 6px 16px rgba(46,111,183,.28);
}
.brand-text{font-size:17px;}

.nav-toggle{
  display:none;
  align-items:center;
  justify-content:center;
  width:44px;
  height:44px;
  border:1px solid var(--line);
  border-radius:12px;
  background:#fff;
  color:var(--text);
  font-size:17px;
  cursor:pointer;
  transition:border-color .2s ease,color .2s ease,box-shadow .2s ease;
}
.nav-toggle:hover{border-color:var(--primary);color:var(--primary);box-shadow:var(--shadow-sm);}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  min-height:46px;
  padding:0 22px;
  border-radius:var(--radius-btn);
  font-size:15px;
  font-weight:600;
  letter-spacing:.2px;
  border:1px solid transparent;
  cursor:pointer;
  transition:transform .18s ease,box-shadow .18s ease,background-color .18s ease,color .18s ease,border-color .18s ease;
}
.btn-primary{
  background:var(--primary);
  border-color:var(--primary);
  color:#fff;
  box-shadow:0 8px 18px rgba(46,111,183,.22);
}
.btn-primary:hover,.btn-primary:focus{
  background:var(--primary-dark);
  border-color:var(--primary-dark);
  color:#fff;
  transform:translateY(-2px);
  box-shadow:0 12px 24px rgba(31,78,130,.26);
}
.btn-outline{
  background:#fff;
  border-color:rgba(46,111,183,.45);
  color:var(--primary);
}
.btn-outline:hover,.btn-outline:focus{
  background:var(--primary-soft);
  border-color:var(--primary);
  color:var(--primary-dark);
  transform:translateY(-2px);
}
.btn-ghost{
  background:transparent;
  border-color:transparent;
  color:var(--muted);
}
.btn-ghost:hover{color:var(--primary);background:rgba(46,111,183,.06);}
.btn-gold{
  background:#fff;
  border-color:rgba(217,154,43,.5);
  color:#A9721A;
}
.btn-gold:hover{background:rgba(217,154,43,.1);color:#8E5D13;border-color:var(--gold);}
.btn-sm{min-height:40px;padding:0 16px;font-size:14px;border-radius:10px;}
.btn[disabled],.btn:disabled{opacity:.5;cursor:not-allowed;transform:none;box-shadow:none;}

/* ---------- 通用板块 ---------- */
.section{padding:88px 0;}
.section-tight{padding:64px 0;}
.section-head{max-width:760px;margin-bottom:44px;}
.section-head .eyebrow{
  display:inline-flex;
  align-items:center;
  gap:8px;
  font-size:13px;
  font-weight:600;
  color:var(--primary);
  background:var(--primary-soft);
  border:1px solid rgba(46,111,183,.18);
  border-radius:var(--radius-pill);
  padding:5px 14px;
  margin-bottom:14px;
}
.section-head h2{font-size:clamp(1.5rem,1.2rem + 1vw,2rem);font-weight:650;letter-spacing:.2px;}
.section-head p{margin-top:12px;color:var(--muted);font-size:16px;}
.section-head .head-row{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;flex-wrap:wrap;}

.badge-soft{
  display:inline-flex;
  align-items:center;
  gap:6px;
  font-size:13px;
  font-weight:600;
  color:var(--primary-dark);
  background:var(--primary-soft);
  border-radius:var(--radius-pill);
  padding:4px 12px;
  white-space:nowrap;
}
.badge-teal{color:#0B6E72;background:rgba(22,163,168,.12);}
.badge-gold{color:#8E5D13;background:rgba(217,154,43,.14);}

.meta-row{
  display:flex;
  align-items:center;
  gap:14px;
  flex-wrap:wrap;
  font-size:13px;
  color:var(--muted);
}
.meta-row .dot{width:4px;height:4px;border-radius:50%;background:#C7D3E2;}

/* ---------- Hero ---------- */
.hero{
  position:relative;
  padding:64px 0 72px;
  background:
    radial-gradient(760px 380px at 88% -12%,rgba(46,111,183,.10),transparent 68%),
    linear-gradient(180deg,#FFFFFF 0%,#F7F9FC 100%);
  border-bottom:1px solid var(--line);
}
.hero-grid{
  display:grid;
  grid-template-columns:minmax(0,7fr) minmax(0,5fr);
  gap:48px;
  align-items:center;
}
.breadcrumbs{font-size:13px;color:var(--muted);margin-bottom:22px;display:flex;gap:8px;flex-wrap:wrap;}
.breadcrumbs a{color:var(--muted);}
.breadcrumbs a:hover{color:var(--primary);text-decoration:underline;}
.breadcrumbs .sep{color:#B9C6D6;}
.breadcrumbs .current{color:var(--primary);font-weight:600;}

.hero h1{
  font-size:clamp(2rem,1.4rem + 2.2vw,3.05rem);
  font-weight:700;
  letter-spacing:.4px;
  margin:16px 0 18px;
}
.hero .lead{
  font-size:17px;
  color:var(--muted);
  max-width:620px;
  margin-bottom:28px;
}
.hero-actions{display:flex;gap:14px;flex-wrap:wrap;margin-bottom:30px;}
.hero-tags{display:flex;gap:10px;flex-wrap:wrap;}
.tag{
  display:inline-flex;
  align-items:center;
  gap:6px;
  font-size:13px;
  color:var(--muted);
  background:#fff;
  border:1px solid var(--line);
  border-radius:var(--radius-pill);
  padding:6px 14px;
}
.tag i{color:var(--accent);font-size:12px;}

.hero-visual{
  position:relative;
  border-radius:20px;
  overflow:hidden;
  border:1px solid var(--line);
  box-shadow:var(--shadow-md);
  background:#fff;
}
.hero-visual img{
  width:100%;
  height:400px;
  object-fit:cover;
}
.hero-visual figcaption{
  position:absolute;
  left:0;right:0;bottom:0;
  padding:34px 22px 18px;
  background:linear-gradient(180deg,rgba(23,43,77,0) 0%,rgba(23,43,77,.72) 100%);
  color:#fff;
  font-size:13.5px;
  letter-spacing:.2px;
}
.hero-visual figcaption strong{display:block;font-size:15px;margin-bottom:2px;font-weight:600;}

/* ---------- 数据条 ---------- */
.stats{
  display:grid;
  grid-template-columns:repeat(4,minmax(0,1fr));
  gap:20px;
  margin-top:44px;
}
.stat-card{
  background:#fff;
  border:1px solid var(--line);
  border-radius:var(--radius-card);
  padding:22px 22px 20px;
  box-shadow:var(--shadow-sm);
  transition:transform .2s ease,box-shadow .2s ease;
}
.stat-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-md);}
.stat-card .num{
  font-size:30px;
  font-weight:700;
  color:var(--primary-dark);
  letter-spacing:.5px;
  line-height:1.2;
  font-variant-numeric:tabular-nums;
}
.stat-card .num small{font-size:14px;font-weight:600;color:var(--muted);margin-left:4px;}
.stat-card .label{margin-top:6px;font-size:14px;color:var(--muted);}

/* ---------- 合集目录 ---------- */
.collection-grid{
  display:grid;
  grid-template-columns:repeat(6,minmax(0,1fr));
  gap:24px;
}
.collection-card{
  grid-column:span 3;
  display:flex;
  flex-direction:column;
  overflow:hidden;
  background:#fff;
  border:1px solid var(--line);
  border-radius:var(--radius-card);
  box-shadow:var(--shadow-sm);
  transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease;
}
.collection-card.small{grid-column:span 2;}
.collection-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-md);border-color:rgba(46,111,183,.28);}
.collection-thumb{position:relative;overflow:hidden;background:var(--primary-soft);}
.collection-thumb img{width:100%;height:190px;object-fit:cover;transition:transform .35s ease;}
.collection-card.small .collection-thumb img{height:150px;}
.collection-card:hover .collection-thumb img{transform:scale(1.03);}
.collection-thumb .index-chip{
  position:absolute;
  top:14px;
  left:14px;
  background:rgba(255,255,255,.92);
  color:var(--primary-dark);
  font-size:12.5px;
  font-weight:700;
  letter-spacing:.6px;
  border-radius:999px;
  padding:4px 12px;
}
.collection-body{padding:20px 22px 22px;display:flex;flex-direction:column;flex:1;gap:10px;}
.collection-body h3{font-size:1.16rem;font-weight:600;}
.collection-body p{font-size:14.5px;color:var(--muted);margin:0;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.collection-foot{
  margin-top:auto;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:12px;
  font-size:13px;
  color:var(--muted);
  border-top:1px dashed var(--line);
  padding-top:14px;
}
.collection-foot .go{color:var(--primary);font-weight:600;}
.collection-card:hover .collection-foot .go{color:var(--primary-dark);}

/* ---------- 精选条目 ---------- */
.feature-list{display:flex;flex-direction:column;gap:22px;}
.feature-item{
  display:grid;
  grid-template-columns:250px minmax(0,1fr);
  gap:26px;
  align-items:stretch;
  background:#fff;
  border:1px solid var(--line);
  border-radius:var(--radius-card);
  padding:20px;
  box-shadow:var(--shadow-sm);
  transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease;
}
.feature-item:hover{transform:translateY(-4px);box-shadow:var(--shadow-md);border-color:rgba(46,111,183,.28);}
.feature-thumb{
  border-radius:12px;
  overflow:hidden;
  background:var(--primary-soft);
  min-height:160px;
}
.feature-thumb img{width:100%;height:100%;min-height:160px;object-fit:cover;transition:transform .35s ease;}
.feature-item:hover .feature-thumb img{transform:scale(1.03);}
.feature-body{display:flex;flex-direction:column;gap:10px;padding:6px 6px 6px 0;}
.feature-body h3{font-size:1.2rem;font-weight:600;}
.feature-body h3 a{color:var(--text);}
.feature-body h3 a:hover{color:var(--primary);}
.feature-body p{font-size:15px;color:var(--muted);margin:0;display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden;}
.feature-foot{
  margin-top:auto;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:14px;
  flex-wrap:wrap;
  font-size:13px;
  color:var(--muted);
}

/* ---------- 时间线 ---------- */
.timeline-wrap{
  background:#fff;
  border:1px solid var(--line);
  border-radius:20px;
  padding:36px 32px;
  box-shadow:var(--shadow-sm);
}
.timeline{position:relative;}
.timeline::before{
  content:"";
  position:absolute;
  left:104px;
  top:12px;
  bottom:12px;
  width:2px;
  background:var(--line);
  border-radius:2px;
}
.timeline-item{
  position:relative;
  display:grid;
  grid-template-columns:104px minmax(0,1fr);
  gap:32px;
  padding-bottom:30px;
}
.timeline-item:last-child{padding-bottom:0;}
.timeline-item::before{
  content:"";
  position:absolute;
  left:97px;
  top:16px;
  width:16px;
  height:16px;
  border-radius:50%;
  background:#fff;
  border:3px solid var(--primary);
  box-shadow:0 0 0 4px rgba(46,111,183,.12);
  z-index:1;
}
.timeline-item.is-new::before{border-color:var(--accent);box-shadow:0 0 0 4px rgba(22,163,168,.16);}
.timeline-date{
  text-align:right;
  padding-right:8px;
  padding-top:8px;
  color:var(--muted);
  line-height:1.3;
}
.timeline-date .day{display:block;font-size:17px;font-weight:700;color:var(--text);font-variant-numeric:tabular-nums;}
.timeline-date .year{display:block;font-size:12.5px;letter-spacing:.6px;}
.timeline-card{
  border:1px solid var(--line);
  border-radius:var(--radius-card);
  padding:20px 22px;
  background:#fff;
  transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.timeline-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-md);border-color:rgba(46,111,183,.28);}
.timeline-card h3{font-size:1.08rem;font-weight:600;margin:10px 0 8px;}
.timeline-card h3 a{color:var(--text);}
.timeline-card h3 a:hover{color:var(--primary);}
.timeline-card p{margin:0 0 12px;font-size:14.8px;color:var(--muted);}
.timeline-card .link-more{font-size:14px;font-weight:600;display:inline-flex;align-items:center;gap:6px;min-height:32px;}
.timeline-card .link-more i{font-size:12px;transition:transform .2s ease;}
.timeline-card .link-more:hover i{transform:translateX(3px);}

/* ---------- 相关推荐 ---------- */
.scroll-row{
  display:grid;
  grid-auto-flow:column;
  grid-auto-columns:300px;
  gap:22px;
  overflow-x:auto;
  padding:6px 4px 20px;
  scroll-snap-type:x mandatory;
  scrollbar-width:thin;
}
.scroll-row::-webkit-scrollbar{height:8px;}
.scroll-row::-webkit-scrollbar-thumb{background:#D3DEEB;border-radius:8px;}
.rel-card{
  scroll-snap-align:start;
  background:#fff;
  border:1px solid var(--line);
  border-radius:var(--radius-card);
  overflow:hidden;
  box-shadow:var(--shadow-sm);
  display:flex;
  flex-direction:column;
  transition:transform .22s ease,box-shadow .22s ease;
}
.rel-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-md);}
.rel-thumb{overflow:hidden;background:var(--primary-soft);}
.rel-thumb img{width:100%;height:168px;object-fit:cover;transition:transform .35s ease;}
.rel-card:hover .rel-thumb img{transform:scale(1.03);}
.rel-body{padding:18px 20px 20px;display:flex;flex-direction:column;gap:10px;flex:1;}
.rel-body h3{font-size:1.02rem;font-weight:600;line-height:1.45;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.rel-body h3 a{color:var(--text);}
.rel-body h3 a:hover{color:var(--primary);}
.rel-body .rel-meta{font-size:13px;color:var(--muted);margin-top:auto;display:flex;gap:12px;flex-wrap:wrap;align-items:center;}

/* ---------- 收藏 / 分享 ---------- */
.cta-band{
  background:var(--primary-soft);
  border:1px solid rgba(46,111,183,.18);
  border-radius:20px;
  padding:30px 34px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:26px;
  flex-wrap:wrap;
}
.cta-band .cta-text h2{font-size:1.3rem;font-weight:650;margin-bottom:8px;}
.cta-band .cta-text p{margin:0;color:var(--muted);font-size:15px;max-width:620px;}
.cta-actions{display:flex;gap:12px;flex-wrap:wrap;}

/* ---------- 页脚 ---------- */
.site-footer{
  background:#16283F;
  color:#C9D6E4;
  padding:64px 0 26px;
  margin-top:20px;
}
.footer-grid{
  display:grid;
  grid-template-columns:1.6fr 1fr 1fr 1.2fr;
  gap:40px;
  padding-bottom:40px;
  border-bottom:1px solid rgba(255,255,255,.12);
}
.site-footer .brand{color:#fff;}
.site-footer .brand-text{color:#fff;}
.site-footer .footer-brand p{margin-top:16px;font-size:14.5px;color:#A9BCD1;max-width:360px;}
.footer-title{font-size:15px;font-weight:600;color:#fff;margin-bottom:16px;letter-spacing:.4px;}
.footer-links li{margin-bottom:10px;}
.footer-links a{color:#B7C7DA;font-size:14.5px;}
.footer-links a:hover{color:#fff;}
.footer-contact li{display:flex;align-items:flex-start;gap:10px;margin-bottom:12px;font-size:14.5px;color:#B7C7DA;}
.footer-contact i{color:#7FA8D6;margin-top:4px;}
.footer-bottom{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  flex-wrap:wrap;
  padding-top:22px;
  font-size:13.5px;
  color:#8FA6BE;
}

/* ---------- 移动端抽屉 ---------- */
.mobile-drawer{
  position:fixed;
  inset:0;
  z-index:1050;
  background:#fff;
  display:flex;
  flex-direction:column;
  padding:22px 24px 26px;
  transform:translateY(-102%);
  transition:transform .3s ease;
  overflow-y:auto;
}
.mobile-drawer.is-open{transform:translateY(0);}
.drawer-top{display:flex;align-items:center;justify-content:space-between;margin-bottom:26px;}
.drawer-close{
  width:44px;height:44px;border-radius:12px;border:1px solid var(--line);
  background:#fff;color:var(--text);font-size:18px;cursor:pointer;
}
.drawer-close:hover{border-color:var(--primary);color:var(--primary);}
.drawer-nav{display:flex;flex-direction:column;gap:6px;margin-bottom:28px;}
.drawer-nav a{
  font-size:18px;
  font-weight:600;
  color:var(--text);
  padding:14px 4px;
  min-height:52px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  border-bottom:1px solid var(--line);
}
.drawer-nav a:hover,.drawer-nav a.active{color:var(--primary);}
.drawer-nav a i{font-size:13px;color:#B9C6D6;}
.drawer-cta{margin-top:auto;}
.drawer-cta .btn{width:100%;}
body.no-scroll{overflow:hidden;}

/* ---------- 响应式 ---------- */
@media (max-width:1199px){
  .hero-visual img{height:340px;}
  .collection-card.small{grid-column:span 3;}
}
@media (max-width:991px){
  .nav-side{display:none;}
  .nav-wrap{grid-template-columns:44px 1fr 44px;}
  .nav-toggle{display:inline-flex;}
  .brand{justify-self:center;}
  .section{padding:64px 0;}
  .hero{padding:36px 0 56px;}
  .hero-grid{grid-template-columns:1fr;gap:32px;}
  .hero-visual img{height:300px;}
  .stats{grid-template-columns:repeat(2,minmax(0,1fr));}
  .collection-card,.collection-card.small{grid-column:span 3;}
  .collection-thumb img{height:180px;}
  .feature-item{grid-template-columns:210px minmax(0,1fr);gap:20px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
}
@media (max-width:767px){
  .container{padding:0 20px;}
  .hero h1{margin-top:12px;}
  .hero .lead{font-size:16px;}
  .hero-actions .btn{width:100%;}
  .hero-visual img{height:240px;}
  .stats{grid-template-columns:1fr;}
  .collection-grid{grid-template-columns:1fr;gap:18px;}
  .collection-card,.collection-card.small{grid-column:span 1;}
  .feature-item{grid-template-columns:1fr;padding:16px;}
  .feature-thumb{min-height:176px;}
  .feature-thumb img{min-height:176px;}
  .timeline-wrap{padding:24px 18px;}
  .timeline::before{left:9px;}
  .timeline-item{grid-template-columns:1fr;gap:12px;padding-left:34px;padding-bottom:26px;}
  .timeline-item::before{left:2px;top:8px;}
  .timeline-date{text-align:left;padding:0;display:flex;align-items:center;gap:8px;}
  .timeline-date .day{font-size:15px;}
  .scroll-row{grid-auto-columns:264px;}
  .cta-band{padding:24px 20px;}
  .cta-actions{width:100%;}
  .cta-actions .btn{flex:1 1 auto;}
  .footer-grid{grid-template-columns:1fr;gap:28px;}
  .footer-bottom{flex-direction:column;align-items:flex-start;}
}
@media (max-width:519px){
  .section{padding:56px 0;}
  .section-head{margin-bottom:30px;}
  .brand-text{font-size:16px;}
  .stat-card .num{font-size:26px;}
  .hero-tags .tag{font-size:12.5px;}
}