/* roulang page: index */
:root{
  --c-brand:#1B5B8F;
  --c-brand-d:#0C2C47;
  --c-brand-l:#E8F1F9;
  --c-neon:#2FE3D0;
  --c-cta:#FF7A45;
  --c-cta-d:#F0662C;
  --c-bg:#F6F9FC;
  --c-card:#FFFFFF;
  --c-line:#E3EBF3;
  --c-t1:#0F1C2E;
  --c-t2:#5A6B7D;
  --c-t3:#93A2B1;
  --c-nav:#0A1420;
  --r-card:16px;
  --r-frag:20px;
  --sh-card:0 1px 2px rgba(15,40,70,.06),0 8px 24px rgba(15,40,70,.08);
  --sh-hover:0 12px 32px rgba(15,40,70,.12);
  --t-fast:220ms ease-out;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:system-ui,"PingFang SC","Microsoft YaHei","Noto Sans SC",sans-serif;
  font-size:17px;
  line-height:1.88;
  color:var(--c-t2);
  background:var(--c-bg);
  font-variant-numeric:tabular-nums;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;}
a{color:inherit;text-decoration:none;}
button{font-family:inherit;}
h1,h2,h3,h4{color:var(--c-t1);line-height:1.3;margin:0;font-weight:700;}
p{margin:0 0 1.15em;}
p:last-child{margin-bottom:0;}
ul{margin:0;padding:0;list-style:none;}
:focus-visible{outline:2px solid var(--c-neon);outline-offset:2px;border-radius:6px;}

.container{width:100%;max-width:1200px;margin:0 auto;padding:0 20px;}
@media(min-width:768px){.container{padding:0 32px;}}

/* ============ 导航 ============ */
.site-nav{
  position:sticky;top:0;z-index:60;
  background:var(--c-nav);
  height:64px;
  display:flex;align-items:center;
}
.site-nav::after{
  content:"";position:absolute;left:0;right:0;bottom:0;height:1px;
  background:linear-gradient(90deg,rgba(47,227,208,.85),rgba(47,227,208,.18) 45%,rgba(47,227,208,0));
}
.nav-inner{
  width:100%;max-width:1200px;margin:0 auto;padding:0 20px;
  display:flex;align-items:center;justify-content:space-between;gap:20px;
}
@media(min-width:768px){.nav-inner{padding:0 32px;}}
.brand{display:flex;align-items:center;gap:10px;flex-shrink:0;}
.brand-mark{
  width:34px;height:34px;border-radius:10px;
  display:flex;align-items:center;justify-content:center;
  background:linear-gradient(140deg,var(--c-brand),var(--c-brand-d));
  color:#fff;font-weight:800;font-size:16px;letter-spacing:.02em;
  box-shadow:0 0 0 1px rgba(47,227,208,.45),0 0 18px rgba(47,227,208,.22);
}
.brand-text{display:flex;flex-direction:column;line-height:1.15;}
.brand-text strong{color:#FFFFFF;font-size:16px;font-weight:700;letter-spacing:.01em;}
.brand-text em{font-style:normal;color:#7C8FA3;font-size:11px;letter-spacing:.06em;}
.nav-links{display:none;align-items:center;gap:4px;}
@media(min-width:1024px){.nav-links{display:flex;}}
.nav-links a{
  position:relative;display:block;padding:8px 12px;font-size:15px;color:#C9D6E2;
  border-radius:8px;transition:color var(--t-fast),background var(--t-fast);
}
.nav-links a::after{
  content:"";position:absolute;left:12px;right:12px;bottom:2px;height:2px;
  background:var(--c-neon);transform:scaleX(0);transform-origin:left;
  transition:transform var(--t-fast);border-radius:2px;
}
.nav-links a:hover{color:#FFFFFF;background:rgba(255,255,255,.05);}
.nav-links a:hover::after{transform:scaleX(1);}
.nav-links a.is-active{color:var(--c-neon);}
.nav-links a.is-active::after{transform:scaleX(1);}
.nav-links a.is-active::before{
  content:"";position:absolute;left:2px;top:50%;margin-top:-1.5px;
  width:3px;height:3px;border-radius:50%;background:var(--c-neon);
  box-shadow:0 0 8px var(--c-neon);
}
.nav-actions{display:flex;align-items:center;gap:10px;}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  border:none;cursor:pointer;font-size:15px;font-weight:600;
  padding:11px 22px;border-radius:999px;
  transition:transform var(--t-fast),background var(--t-fast),box-shadow var(--t-fast),color var(--t-fast),border-color var(--t-fast);
}
.btn-primary{background:var(--c-cta);color:#fff;box-shadow:0 6px 18px rgba(255,122,69,.28);}
.btn-primary:hover{background:var(--c-cta-d);transform:translateY(-1px);box-shadow:0 10px 24px rgba(255,122,69,.34);}
.btn-primary:active{transform:translateY(1px);box-shadow:0 4px 12px rgba(255,122,69,.24);}
.btn-ghost{background:transparent;color:var(--c-brand);border:1.5px solid var(--c-brand);}
.btn-ghost:hover{background:var(--c-brand-l);transform:translateY(-1px);}
.btn-ghost:active{transform:translateY(1px);}
.btn-sm{padding:8px 16px;font-size:14px;}
.btn-nav{
  background:var(--c-brand-l);color:var(--c-brand-d);font-size:14px;font-weight:700;
  padding:9px 18px;border:1px solid transparent;
}
.btn-nav:hover{box-shadow:0 0 0 1.5px var(--c-neon),0 0 18px rgba(47,227,208,.28);}
.nav-toggle{
  display:inline-flex;flex-direction:column;justify-content:center;gap:5px;
  width:42px;height:42px;border-radius:10px;background:rgba(255,255,255,.06);
  border:1px solid rgba(47,227,208,.3);cursor:pointer;align-items:center;
}
.nav-toggle span{display:block;width:18px;height:2px;background:var(--c-neon);border-radius:2px;}
@media(min-width:1024px){.nav-toggle{display:none;}}

.drawer{
  position:fixed;inset:0;z-index:80;background:rgba(10,20,32,.985);
  transform:translateX(100%);transition:transform 260ms ease-out;
  display:flex;flex-direction:column;padding:22px 24px 32px;overflow-y:auto;
}
.drawer.is-open{transform:translateX(0);}
.drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:28px;}
.drawer-close{
  width:40px;height:40px;border-radius:10px;background:rgba(255,255,255,.06);
  border:1px solid rgba(47,227,208,.3);color:var(--c-neon);font-size:20px;cursor:pointer;line-height:1;
}
.drawer-links{display:flex;flex-direction:column;gap:6px;}
.drawer-links a{
  color:#D8E3EE;font-size:19px;font-weight:600;padding:14px 4px;
  border-bottom:1px solid rgba(255,255,255,.07);
}
.drawer-links a.is-active{color:var(--c-neon);}
.drawer-cta{margin-top:26px;}
.drawer-foot{margin-top:auto;padding-top:26px;color:#7C8FA3;font-size:13px;line-height:1.9;}

/* ============ 板块通用 ============ */
.sec{padding:64px 0;}
@media(min-width:768px){.sec{padding:96px 0;}}
.sec-head{max-width:720px;margin-bottom:36px;}
.sec-tag{
  display:inline-block;font-size:12px;letter-spacing:.06em;font-weight:600;
  color:var(--c-brand);background:var(--c-brand-l);border-radius:999px;
  padding:4px 12px;margin-bottom:14px;
}
.sec-tag-cta{background:var(--c-cta);color:#fff;}
.sec h2{font-size:23px;font-weight:600;}
@media(min-width:768px){.sec h2{font-size:28px;}}
.sec-desc{margin-top:12px;font-size:16px;color:var(--c-t2);}
.h2-accent{position:relative;padding-left:14px;}
.h2-accent::before{
  content:"";position:absolute;left:0;top:.18em;bottom:.18em;width:4px;
  border-radius:3px;background:linear-gradient(180deg,var(--c-neon),var(--c-brand));
}

/* ============ Hero ============ */
.hero{background:var(--c-bg);padding:40px 0 8px;}
@media(min-width:768px){.hero{padding:56px 0 12px;}}
.hero-grid{display:grid;grid-template-columns:1fr;gap:32px;align-items:center;}
@media(min-width:1024px){.hero-grid{grid-template-columns:340px 1fr;gap:56px;}}
.hero-visual{
  position:relative;border-radius:24px;overflow:hidden;
  height:60vh;min-height:320px;background:var(--c-brand-d);
  box-shadow:var(--sh-card);
}
@media(min-width:1024px){.hero-visual{height:auto;aspect-ratio:9/16;min-height:0;max-height:580px;}}
.hero-visual img{width:100%;height:100%;object-fit:cover;}
.hero-visual::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(10,20,32,.05) 40%,rgba(10,20,32,.72));
}
.hero-badge{
  position:absolute;top:16px;left:16px;z-index:2;
  display:inline-flex;align-items:center;gap:6px;
  background:rgba(10,20,32,.72);border:1px solid rgba(47,227,208,.55);
  color:var(--c-neon);font-size:12px;font-weight:600;letter-spacing:.04em;
  padding:5px 12px;border-radius:999px;
}
.hero-badge i{width:6px;height:6px;border-radius:50%;background:var(--c-neon);display:block;box-shadow:0 0 8px var(--c-neon);}
.hero-progress{position:absolute;left:16px;right:16px;bottom:16px;z-index:2;}
.hero-progress span{display:block;font-size:12px;color:#B7C7D6;margin-bottom:6px;letter-spacing:.04em;}
.hero-progress .track{height:4px;border-radius:999px;background:rgba(255,255,255,.22);overflow:hidden;}
.hero-progress .track i{display:block;height:100%;width:72%;border-radius:999px;background:var(--c-neon);box-shadow:0 0 12px rgba(47,227,208,.7);}
.hero-copy h1{font-size:30px;font-weight:800;letter-spacing:-.005em;line-height:1.28;}
@media(min-width:768px){.hero-copy h1{font-size:40px;}}
.hero-copy .hero-sub{margin-top:18px;font-size:16.5px;color:var(--c-t2);max-width:640px;}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:28px;}
.hero-stats{
  display:grid;grid-template-columns:repeat(3,minmax(0,1fr));
  gap:14px;margin-top:32px;padding-top:26px;border-top:1px solid var(--c-line);
}
.hero-stats .num{font-size:24px;font-weight:800;color:var(--c-brand-d);line-height:1.2;}
@media(min-width:768px){.hero-stats .num{font-size:30px;}}
.hero-stats .lbl{font-size:13px;color:var(--c-t3);margin-top:4px;line-height:1.6;}
.status-bar{
  margin-top:30px;background:var(--c-nav);border-radius:var(--r-card);
  padding:16px 20px;display:flex;flex-wrap:wrap;align-items:center;gap:12px 26px;
}
.status-bar .dot{width:7px;height:7px;border-radius:50%;background:var(--c-cta);display:block;box-shadow:0 0 10px rgba(255,122,69,.8);flex-shrink:0;}
.status-bar .item{display:flex;align-items:center;gap:8px;font-size:13.5px;color:#B7C7D6;}
.status-bar .item b{color:#fff;font-weight:600;}

/* ============ 片段卡横滑 ============ */
.scroll-wrap{position:relative;}
.scroll-x{
  display:flex;gap:18px;overflow-x:auto;padding:6px 2px 18px;
  scroll-snap-type:x mandatory;scrollbar-width:none;-ms-overflow-style:none;
}
.scroll-x::-webkit-scrollbar{display:none;}
.frag{
  position:relative;flex:0 0 auto;width:168px;aspect-ratio:9/16;
  border-radius:var(--r-frag);overflow:hidden;scroll-snap-align:start;
  background:var(--c-brand-d);box-shadow:var(--sh-card);
  transition:transform var(--t-fast),box-shadow var(--t-fast);
}
@media(min-width:768px){.frag{width:214px;}}
.frag:hover{transform:translateY(-4px) scale(1.015);box-shadow:var(--sh-hover);}
.frag img{width:100%;height:100%;object-fit:cover;}
.frag .frag-info{
  position:absolute;left:0;right:0;bottom:0;padding:14px 14px 16px;
  background:linear-gradient(180deg,rgba(10,20,32,0),rgba(10,20,32,.86));
}
.frag .frag-info h3{color:#fff;font-size:15px;font-weight:600;line-height:1.45;}
.frag .frag-info span{display:block;margin-top:6px;font-size:12px;color:#A9BCCB;letter-spacing:.03em;}
.frag .idx{
  position:absolute;top:10px;right:10px;z-index:2;
  background:var(--c-cta);color:#fff;font-size:12px;font-weight:700;
  width:26px;height:26px;border-radius:50%;display:flex;align-items:center;justify-content:center;
}
.scroll-hint{font-size:13px;color:var(--c-t3);margin-top:2px;}
@media(min-width:768px){.scroll-hint{display:none;}}

/* ============ 清单 ============ */
.pick-list{border-top:1px solid var(--c-line);}
.pick-row{
  display:grid;grid-template-columns:52px 1fr;gap:16px;align-items:center;
  padding:20px 10px;border-bottom:1px solid var(--c-line);
  transition:background var(--t-fast);
}
@media(min-width:768px){.pick-row{grid-template-columns:64px 168px 1fr 40px;gap:24px;padding:24px 16px;}}
.pick-row:hover{background:var(--c-brand-l);}
.pick-num{
  font-size:30px;font-weight:800;color:transparent;
  -webkit-text-stroke:1.4px var(--c-brand);
  line-height:1;font-variant-numeric:tabular-nums;
}
@media(min-width:768px){.pick-num{font-size:38px;}}
.pick-thumb{display:none;border-radius:12px;overflow:hidden;aspect-ratio:16/9;background:var(--c-brand-l);}
@media(min-width:768px){.pick-thumb{display:block;}}
.pick-thumb img{width:100%;height:100%;object-fit:cover;}
.pick-body h3{font-size:17px;font-weight:600;}
.pick-body p{margin-top:8px;font-size:15px;color:var(--c-t2);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.pick-arrow{display:none;color:var(--c-brand);font-size:20px;}
@media(min-width:768px){.pick-arrow{display:block;}}
.pick-row:hover .pick-arrow{transform:translateX(4px);transition:transform var(--t-fast);}

/* ============ 口碑条 ============ */
.voices{background:var(--c-brand-l);border-radius:24px;padding:28px 22px;}
@media(min-width:768px){.voices{padding:34px 30px;}}
.voice-scroll{display:flex;gap:16px;overflow-x:auto;padding-bottom:6px;scroll-snap-type:x mandatory;scrollbar-width:none;}
.voice-scroll::-webkit-scrollbar{display:none;}
.voice{
  flex:0 0 auto;width:250px;background:#fff;border:1px solid var(--c-line);
  border-radius:var(--r-card);padding:16px 18px;scroll-snap-align:start;
  box-shadow:0 1px 2px rgba(15,40,70,.05);
}
.voice-head{display:flex;align-items:center;gap:10px;}
.voice-avatar{
  width:34px;height:34px;border-radius:50%;flex-shrink:0;
  background:linear-gradient(140deg,var(--c-brand),var(--c-brand-d));
  color:#fff;font-size:13px;font-weight:700;display:flex;align-items:center;justify-content:center;
}
.voice-name{font-size:14px;color:var(--c-t1);font-weight:600;}
.voice-text{margin-top:10px;font-size:14px;color:var(--c-t2);line-height:1.75;}
.voice-dots{display:flex;gap:5px;margin-top:12px;}
.voice-dots i{width:6px;height:6px;border-radius:50%;background:var(--c-cta);display:block;}
.voice-dots i.off{background:#D7E1EA;}

/* ============ CTA 区 ============ */
.cta-band{
  background:linear-gradient(120deg,#0C2C47,#1B5B8F 68%);
  border-radius:24px;padding:32px 24px;
  display:flex;flex-direction:column;gap:22px;align-items:flex-start;
  position:relative;overflow:hidden;
}
@media(min-width:900px){.cta-band{flex-direction:row;align-items:center;justify-content:space-between;padding:40px 44px;}}
.cta-band::before{
  content:"";position:absolute;right:-60px;top:-60px;width:220px;height:220px;
  border:1px solid rgba(47,227,208,.28);border-radius:50%;
}
.cta-band::after{
  content:"";position:absolute;right:20px;bottom:-90px;width:260px;height:260px;
  border:1px solid rgba(47,227,208,.16);border-radius:50%;
}
.cta-band h2{color:#fff;font-size:22px;position:relative;z-index:1;}
@media(min-width:768px){.cta-band h2{font-size:27px;}}
.cta-band p{color:#B7C7D6;margin-top:10px;font-size:15.5px;max-width:640px;position:relative;z-index:1;}
.cta-band .cta-actions{display:flex;flex-wrap:wrap;gap:12px;position:relative;z-index:1;}

/* ============ 最新信息 ============ */
.news-grid{display:grid;grid-template-columns:1fr;gap:20px;}
@media(min-width:768px){.news-grid{grid-template-columns:repeat(2,minmax(0,1fr));}}
@media(min-width:1024px){.news-grid{grid-template-columns:repeat(3,minmax(0,1fr));}}
.news-card{
  background:var(--c-card);border:1px solid var(--c-line);border-radius:var(--r-card);
  box-shadow:var(--sh-card);transition:transform var(--t-fast),box-shadow var(--t-fast);
}
.news-card:hover{transform:translateY(-4px);box-shadow:var(--sh-hover);}
.news-link{display:flex;flex-direction:column;height:100%;padding:22px;}
.news-title{
  margin-top:14px;font-size:17.5px;font-weight:600;color:var(--c-t1);
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.news-sum{
  margin-top:10px;font-size:14.5px;color:var(--c-t2);line-height:1.8;
  display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden;
}
.news-meta{
  margin-top:auto;padding-top:18px;display:flex;align-items:center;justify-content:space-between;
  border-top:1px solid var(--c-line);font-size:13px;color:var(--c-t3);
}
.news-more{color:var(--c-brand);font-weight:600;}
.news-empty{
  grid-column:1 / -1;background:var(--c-card);border:1px dashed var(--c-line);
  border-radius:var(--r-card);padding:26px;display:flex;flex-direction:column;
  align-items:center;gap:14px;text-align:center;
}
.news-empty img{width:100%;max-width:360px;border-radius:12px;aspect-ratio:16/9;object-fit:cover;}
.news-empty p{font-size:15px;color:var(--c-t3);}

/* ============ FAQ ============ */
.faq-list{max-width:900px;margin:0 auto;border-top:1px solid var(--c-line);}
.faq-item{border-bottom:1px solid var(--c-line);}
.faq-q{
  width:100%;background:none;border:none;cursor:pointer;text-align:left;
  padding:22px 44px 22px 0;position:relative;
  font-size:17px;font-weight:600;color:var(--c-t1);line-height:1.6;
}
.faq-q::after{
  content:"+";position:absolute;right:6px;top:50%;transform:translateY(-50%);
  font-size:22px;font-weight:400;color:var(--c-brand);
  transition:transform var(--t-fast),color var(--t-fast);
}
.faq-item.is-open .faq-q::after{content:"−";color:var(--c-cta);}
.faq-a{max-height:0;overflow:hidden;transition:max-height 260ms ease-out;}
.faq-a p{padding:0 24px 22px;font-size:15.5px;color:var(--c-t2);line-height:1.85;margin:0;background:transparent;}
.faq-item.is-open .faq-a{background:var(--c-brand-l);border-radius:0 0 12px 12px;}
.faq-item.is-open .faq-a p{padding-top:18px;}

/* ============ 页脚 ============ */
.site-foot{background:var(--c-bg);border-top:1px solid var(--c-line);padding:56px 0 0;margin-top:20px;}
.foot-grid{display:grid;grid-template-columns:1fr;gap:36px;}
@media(min-width:768px){.foot-grid{grid-template-columns:1.4fr 1fr 1fr;gap:40px;}}
.foot-brand .brand-text strong{color:var(--c-t1);}
.foot-brand .brand-text em{color:var(--c-t3);}
.foot-brand .brand-mark{box-shadow:0 0 0 1px rgba(27,91,143,.35);}
.foot-desc{margin-top:16px;font-size:14.5px;color:var(--c-t2);line-height:1.85;max-width:360px;}
.foot-col h3{font-size:15px;font-weight:700;color:var(--c-t1);margin-bottom:16px;}
.foot-links{display:flex;flex-direction:column;gap:11px;}
.foot-links a{font-size:14.5px;color:var(--c-t2);transition:color var(--t-fast),transform var(--t-fast);display:inline-block;}
.foot-links a:hover{color:var(--c-brand);transform:translateX(-2px);}
.foot-col li{font-size:14.5px;color:var(--c-t2);line-height:1.9;}
.foot-bottom{
  margin-top:44px;border-top:1px solid var(--c-line);padding:18px 0 22px;
  text-align:center;font-size:13px;color:var(--c-t3);
}
@media(max-width:767px){
  body{font-size:16px;}
  .hero-stats{grid-template-columns:repeat(3,minmax(0,1fr));gap:8px;}
  .hero-stats .num{font-size:20px;}
  .hero-stats .lbl{font-size:12px;}
  .voice{width:80vw;}
  .cta-band{padding:28px 20px;}
}
@media(max-width:520px){
  .hero-actions .btn{width:100%;}
  .cta-band .cta-actions .btn{width:100%;}
  .hero-stats{grid-template-columns:1fr 1fr;}
  .hero-stats .stat:last-child{grid-column:1 / -1;}
}

/* roulang page: article */
:root{
  --c-brand:#1B5B8F;
  --c-brand-d:#0C2C47;
  --c-brand-l:#E8F1F9;
  --c-neon:#2FE3D0;
  --c-cta:#FF7A45;
  --c-cta-d:#F2652C;
  --c-bg:#F6F9FC;
  --c-card:#FFFFFF;
  --c-line:#E3EBF3;
  --c-t1:#0F1C2E;
  --c-t2:#5A6B7D;
  --c-t3:#93A2B1;
  --c-nav:#0A1420;
  --r-card:16px;
  --r-seg:20px;
  --r-btn:999px;
  --sh-card:0 1px 2px rgba(15,40,70,.06),0 8px 24px rgba(15,40,70,.08);
  --sh-hover:0 12px 32px rgba(15,40,70,.12);
  --font:system-ui,"PingFang SC","Microsoft YaHei","Noto Sans SC",sans-serif;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;}
body{
  margin:0;font-family:var(--font);font-size:17px;line-height:1.85;
  color:var(--c-t2);background:var(--c-bg);overflow-x:hidden;
  font-variant-numeric:tabular-nums;
}
img{max-width:100%;display:block;}
a{color:inherit;text-decoration:none;}
button{font-family:inherit;cursor:pointer;border:0;background:none;color:inherit;}
h1,h2,h3,h4{margin:0;color:var(--c-t1);line-height:1.3;font-weight:600;}
p{margin:0;}
ul,ol{margin:0;padding:0;list-style:none;}
body.nav-locked{overflow:hidden;}

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

/* ============ 顶部导航 ============ */
.site-nav{position:sticky;top:0;z-index:50;background:var(--c-nav);}
.site-nav::after{content:"";display:block;height:1px;background:linear-gradient(90deg,rgba(47,227,208,.95),rgba(47,227,208,.25) 45%,rgba(47,227,208,0));}
.nav-inner{max-width:1200px;margin:0 auto;padding:0 20px;height:64px;display:flex;align-items:center;gap:24px;}
.brand{display:flex;align-items:center;gap:10px;flex-shrink:0;}
.brand-mark{
  width:32px;height:32px;border-radius:9px;display:grid;place-items:center;
  background:linear-gradient(140deg,var(--c-neon),var(--c-brand));
  color:#04141B;font-weight:800;font-size:16px;box-shadow:0 0 14px rgba(47,227,208,.35);
}
.brand-text{display:flex;flex-direction:column;line-height:1.15;}
.brand-text strong{color:#fff;font-size:15.5px;font-weight:700;letter-spacing:.01em;}
.brand-text em{color:#7E93A6;font-size:11px;font-style:normal;letter-spacing:.06em;}
.nav-links{display:flex;align-items:center;gap:2px;margin-left:auto;}
.nav-links > a{position:relative;color:#C9D6E2;font-size:15px;padding:22px 11px;transition:color .2s ease;}
.nav-links > a::after{
  content:"";position:absolute;left:11px;right:11px;bottom:14px;height:2px;border-radius:2px;
  background:linear-gradient(90deg,var(--c-neon),rgba(47,227,208,.15));
  transform:scaleX(0);transform-origin:left;transition:transform .24s ease;
}
.nav-links > a:hover{color:#fff;}
.nav-links > a:hover::after{transform:scaleX(1);}
.nav-links > a.is-active{color:var(--c-neon);text-shadow:0 0 10px rgba(47,227,208,.55);}
.nav-links > a.is-active::after{transform:scaleX(1);box-shadow:0 0 10px rgba(47,227,208,.7);}
.nav-links > a.is-active::before{
  content:"";position:absolute;left:50%;bottom:5px;transform:translateX(-50%);
  width:3px;height:3px;border-radius:50%;background:var(--c-neon);box-shadow:0 0 8px var(--c-neon);
}
.nav-links-cta{display:none;}
.nav-actions{display:flex;align-items:center;gap:12px;flex-shrink:0;}
.btn-nav{
  display:inline-flex;align-items:center;justify-content:center;
  background:#EAF3FA;color:var(--c-brand-d);font-size:14px;font-weight:600;
  padding:9px 18px;border-radius:var(--r-btn);border:1px solid transparent;
  transition:background .2s ease,box-shadow .2s ease,transform .2s ease;
}
.btn-nav:hover{background:#fff;box-shadow:0 0 0 1.5px var(--c-neon);transform:translateY(-1px);}
.nav-toggle{
  display:none;width:40px;height:40px;border-radius:10px;
  border:1px solid rgba(47,227,208,.35);flex-direction:column;
  justify-content:center;align-items:center;gap:5px;
}
.nav-toggle span{display:block;width:18px;height:2px;border-radius:2px;background:var(--c-neon);transition:.24s ease;}
.nav-toggle.is-open span:nth-child(1){transform:translateY(7px) rotate(45deg);}
.nav-toggle.is-open span:nth-child(2){opacity:0;}
.nav-toggle.is-open span:nth-child(3){transform:translateY(-7px) rotate(-45deg);}

/* ============ 通用按钮 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  font-size:15px;font-weight:600;padding:12px 24px;border-radius:var(--r-btn);
  transition:transform .2s ease,box-shadow .2s ease,background .2s ease,color .2s ease,border-color .2s ease;
}
.btn-primary{background:var(--c-cta);color:#fff;box-shadow:0 8px 20px rgba(255,122,69,.28);}
.btn-primary:hover{background:var(--c-cta-d);transform:translateY(-1px);box-shadow:0 12px 26px rgba(255,122,69,.34);}
.btn-primary:active{transform:translateY(0);}
.btn-ghost{background:transparent;color:var(--c-brand);border:1.5px solid var(--c-brand);}
.btn-ghost:hover{background:var(--c-brand-l);}
.btn:focus-visible,a:focus-visible,button:focus-visible{outline:2px solid var(--c-neon);outline-offset:2px;}

/* ============ 面包屑 ============ */
.crumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:14px;color:var(--c-t3);padding:26px 0 0;}
.crumb a{color:var(--c-t3);transition:color .2s ease;}
.crumb a:hover{color:var(--c-brand);}
.crumb .sep{color:#C3CFDA;}
.crumb .now{color:var(--c-t2);max-width:420px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;}

/* ============ 文章头 ============ */
.article-wrap{max-width:760px;margin:0 auto;}
.article-head{padding:20px 0 28px;border-bottom:1px solid var(--c-line);}
.tag{
  display:inline-flex;align-items:center;height:24px;padding:0 12px;border-radius:999px;
  background:var(--c-brand-l);color:var(--c-brand);font-size:12px;font-weight:600;letter-spacing:.04em;
}
.article-head h1{font-size:36px;font-weight:700;margin:14px 0 0;color:var(--c-t1);letter-spacing:0;}
.meta-row{display:flex;flex-wrap:wrap;align-items:center;gap:10px;margin-top:16px;font-size:14px;color:var(--c-t3);}
.meta-row .dot{width:3px;height:3px;border-radius:50%;background:#C3CFDA;}

/* ============ 正文排版 ============ */
.article-body{padding:32px 0 8px;font-size:17px;line-height:1.9;color:var(--c-t2);}
.article-body > *:first-child{margin-top:0;}
.article-body p{margin:0 0 1.15em;}
.article-body h2{
  position:relative;font-size:28px;font-weight:600;color:var(--c-t1);
  margin:40px 0 16px;padding-left:16px;line-height:1.3;
}
.article-body h2::before{
  content:"";position:absolute;left:0;top:.24em;bottom:.24em;width:3px;border-radius:2px;
  background:var(--c-neon);box-shadow:0 0 12px rgba(47,227,208,.55);
}
.article-body h3{font-size:20px;font-weight:600;color:var(--c-brand);margin:28px 0 12px;}
.article-body h4{font-size:17px;font-weight:600;color:var(--c-t1);margin:22px 0 10px;}
.article-body ul,.article-body ol{margin:0 0 1.15em;padding-left:1.4em;list-style:revert;}
.article-body ul li{list-style:disc;}
.article-body ol li{list-style:decimal;}
.article-body li{margin-bottom:.5em;}
.article-body ul li::marker{color:var(--c-brand);}
.article-body ol li::marker{color:var(--c-cta);font-weight:600;}
.article-body blockquote{
  background:var(--c-brand-l);border-left:4px solid var(--c-brand);
  border-radius:0 12px 12px 0;padding:16px 20px;margin:24px 0;color:var(--c-t1);
}
.article-body blockquote p:last-child{margin-bottom:0;}
.article-body a{color:var(--c-brand);text-decoration:underline;text-underline-offset:3px;transition:color .2s ease;}
.article-body a:hover{color:var(--c-cta);}
.article-body img{border-radius:14px;margin:24px auto;}
.article-body figure{margin:24px 0;}
.article-body figcaption{text-align:center;font-size:13px;color:var(--c-t3);margin-top:8px;}
.article-body table{
  width:100%;border-collapse:separate;border-spacing:0;border:1px solid var(--c-line);
  border-radius:14px;overflow:hidden;margin:24px 0;font-size:15px;background:#fff;
}
.article-body thead th{background:var(--c-brand-l);color:var(--c-brand-d);font-weight:600;}
.article-body th,.article-body td{padding:12px 14px;text-align:left;border-bottom:1px solid var(--c-line);}
.article-body tbody tr:nth-child(even){background:#FAFCFE;}
.article-body tbody tr:last-child td{border-bottom:0;}
.article-body hr{border:0;border-top:1px solid var(--c-line);margin:36px 0;}

.article-empty{
  background:var(--c-card);border:1px solid var(--c-line);border-radius:var(--r-card);
  box-shadow:var(--sh-card);padding:40px 32px;text-align:center;margin:32px 0 8px;
}
.article-empty h2{font-size:22px;margin-bottom:10px;}
.article-empty p{font-size:15px;margin-bottom:22px;}

/* ============ 文末信息 ============ */
.article-foot{
  margin-top:34px;padding-top:22px;border-top:1px solid var(--c-line);
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:14px;
}
.tag-row{display:flex;flex-wrap:wrap;gap:8px;}
.back-link{color:var(--c-brand);font-size:14px;font-weight:600;transition:color .2s ease,transform .2s ease;display:inline-flex;align-items:center;gap:6px;}
.back-link:hover{color:var(--c-cta);transform:translateX(-2px);}

/* ============ 板块与卡片 ============ */
.section{padding:56px 0 0;}
.section-head{display:flex;flex-wrap:wrap;align-items:flex-end;justify-content:space-between;gap:16px;}
.section-head h2{font-size:28px;font-weight:600;}
.section-head p{color:var(--c-t2);font-size:15px;margin-top:8px;}
.reco-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;margin-top:28px;}
.card{
  display:flex;flex-direction:column;background:var(--c-card);border:1px solid var(--c-line);
  border-radius:var(--r-card);box-shadow:var(--sh-card);overflow:hidden;
  transition:transform .22s ease-out,box-shadow .22s ease-out,border-color .22s ease;
}
.card:hover{transform:translateY(-4px);box-shadow:var(--sh-hover);border-color:#CFDFEC;}
.card-media{position:relative;overflow:hidden;}
.card-media img{width:100%;aspect-ratio:16/9;object-fit:cover;transition:transform .3s ease-out;}
.card:hover .card-media img{transform:scale(1.04);}
.card-body{padding:18px 20px 20px;display:flex;flex-direction:column;gap:10px;flex:1;}
.card-body h3{font-size:17px;line-height:1.5;}
.card-body p{font-size:14px;line-height:1.7;color:var(--c-t2);}
.card-more{margin-top:auto;font-size:13px;color:var(--c-brand);font-weight:600;}
.card:hover .card-more{color:var(--c-cta);}

.link-pills{display:flex;flex-wrap:wrap;gap:12px;margin-top:24px;}
.link-pills a{
  display:inline-flex;align-items:center;gap:8px;padding:10px 18px;border-radius:999px;
  background:#fff;border:1px solid var(--c-line);font-size:14px;color:var(--c-t2);
  transition:color .2s ease,border-color .2s ease,background .2s ease,transform .2s ease;
}
.link-pills a:hover{color:var(--c-brand);border-color:#BBD6EA;background:var(--c-brand-l);transform:translateX(2px);}

/* ============ CTA ============ */
.cta-band{
  margin-top:56px;background:var(--c-brand-l);border:1px solid #D3E5F4;border-radius:var(--r-seg);
  padding:26px 30px;display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:20px;
}
.cta-band h2{font-size:22px;font-weight:600;}
.cta-band p{font-size:14px;margin-top:6px;color:var(--c-t2);}

/* ============ 页脚 ============ */
.site-foot{background:var(--c-bg);border-top:1px solid var(--c-line);padding:56px 0 0;margin-top:64px;}
.foot-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr;gap:40px;}
.foot-brand .brand-text strong{color:var(--c-t1);}
.foot-brand .brand-text em{color:var(--c-t3);}
.foot-desc{font-size:14px;line-height:1.9;margin-top:16px;max-width:420px;color:var(--c-t2);}
.foot-col h3{font-size:15px;font-weight:600;color:var(--c-t1);margin-bottom:16px;}
.foot-links{display:flex;flex-direction:column;gap:10px;}
.foot-links a{font-size:14px;color:var(--c-t2);transition:color .2s ease,transform .2s ease;display:inline-block;}
.foot-links a:hover{color:var(--c-brand);transform:translateX(2px);}
.foot-col ul li{font-size:14px;color:var(--c-t2);margin-bottom:10px;}
.foot-bottom{margin-top:44px;border-top:1px solid var(--c-line);padding:18px 0;text-align:center;font-size:13px;color:var(--c-t3);}

/* ============ 响应式 ============ */
@media (max-width:1024px){
  .nav-inner{height:56px;}
  .nav-toggle{display:flex;}
  .nav-actions{margin-left:auto;}
  .nav-actions .btn-nav{display:none;}
  .nav-links{
    position:fixed;left:0;right:0;top:56px;bottom:0;margin-left:0;
    background:var(--c-nav);flex-direction:column;align-items:stretch;gap:0;
    padding:20px 24px 32px;overflow-y:auto;
    transform:translateY(-12px);opacity:0;visibility:hidden;
    transition:transform .26s ease,opacity .26s ease,visibility .26s ease;
  }
  .nav-links.is-open{transform:translateY(0);opacity:1;visibility:visible;}
  .nav-links > a{padding:16px 4px;font-size:18px;border-bottom:1px solid rgba(255,255,255,.07);}
  .nav-links > a::after,.nav-links > a.is-active::before{display:none;}
  .nav-links > a.is-active{color:var(--c-neon);}
  .nav-links-cta{
    display:block;margin-top:26px;text-align:center;background:var(--c-cta);color:#fff;
    font-weight:600;font-size:16px;padding:14px;border-radius:var(--r-btn);
  }
  .reco-grid{grid-template-columns:repeat(2,1fr);}
  .foot-grid{grid-template-columns:1fr 1fr;gap:32px;}
  .foot-brand{grid-column:1 / -1;}
}
@media (max-width:768px){
  body{font-size:16px;}
  .container{padding:0 20px;}
  .article-head h1{font-size:26px;}
  .article-body{font-size:16px;line-height:1.88;}
  .article-body h2{font-size:23px;margin:34px 0 14px;}
  .article-body h3{font-size:18px;}
  .section{padding:40px 0 0;}
  .section-head h2{font-size:23px;}
  .crumb{padding-top:20px;}
  .crumb .now{max-width:200px;}
  .cta-band{padding:22px 20px;}
  .cta-band h2{font-size:19px;}
  .site-foot{padding-top:44px;margin-top:48px;}
}
@media (max-width:560px){
  .reco-grid{grid-template-columns:1fr;}
  .foot-grid{grid-template-columns:1fr;}
  .brand-text em{display:none;}
  .link-pills a{width:100%;justify-content:space-between;}
}

/* roulang page: category1 */
:root{
  --c-brand:#1B5B8F;--c-brand-d:#0C2C47;--c-brand-l:#E8F1F9;
  --c-neon:#2FE3D0;--c-cta:#FF7A45;--c-cta-d:#F06A33;
  --c-bg:#F6F9FC;--c-card:#FFFFFF;--c-line:#E3EBF3;
  --c-t1:#0F1C2E;--c-t2:#5A6B7D;--c-t3:#93A2B1;
  --c-nav:#0A1420;
  --r-card:16px;--r-lg:20px;--r-btn:999px;
  --sh-card:0 1px 2px rgba(15,40,70,.06),0 8px 24px rgba(15,40,70,.08);
  --sh-hover:0 12px 32px rgba(15,40,70,.12);
  --t:220ms ease-out;
}
.site-body{margin:0;background:var(--c-bg);color:var(--c-t2);
  font-family:system-ui,"PingFang SC","Microsoft YaHei","Noto Sans SC",sans-serif;
  font-size:17px;line-height:1.88;font-variant-numeric:tabular-nums;
  -webkit-font-smoothing:antialiased;}
.site-body *{box-sizing:border-box;}
.site-body a{color:inherit;text-decoration:none;}
.site-body img{display:block;max-width:100%;height:auto;}
.site-body button{font:inherit;color:inherit;background:none;border:0;cursor:pointer;}
.site-body ul{margin:0;padding:0;list-style:none;}
.site-body p{margin:0 0 1.15em;}
.site-body h1,.site-body h2,.site-body h3,.site-body h4{color:var(--c-t1);line-height:1.3;margin:0;}
.container{max-width:1200px;margin:0 auto;padding:0 20px;}
@media (min-width:768px){.container{padding:0 32px;}}

.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;
  font-size:15px;font-weight:600;padding:12px 24px;border-radius:var(--r-btn);
  transition:transform var(--t),box-shadow var(--t),background var(--t),color var(--t);white-space:nowrap;}
.btn-primary{background:var(--c-cta);color:#fff;box-shadow:0 8px 22px rgba(255,122,69,.28);}
.btn-primary:hover{background:var(--c-cta-d);transform:translateY(-1px);box-shadow:0 12px 26px rgba(255,122,69,.34);}
.btn-primary:active{transform:translateY(1px);}
.btn-ghost{border:1.5px solid var(--c-brand);color:var(--c-brand);background:transparent;}
.btn-ghost:hover{background:var(--c-brand-l);}
.btn-sm{padding:10px 20px;font-size:14px;}
:focus-visible{outline:2px solid var(--c-neon);outline-offset:2px;border-radius:8px;}

/* 导航 */
.site-nav{position:sticky;top:0;z-index:60;background:var(--c-nav);}
.site-nav::after{content:"";position:absolute;left:0;right:0;bottom:0;height:1px;
  background:linear-gradient(90deg,rgba(47,227,208,.85),rgba(47,227,208,.16) 55%,rgba(47,227,208,0));}
.nav-inner{max-width:1200px;margin:0 auto;padding:0 20px;height:64px;display:flex;align-items:center;justify-content:space-between;gap:22px;}
.brand{display:flex;align-items:center;gap:10px;flex:0 0 auto;}
.brand-mark{width:34px;height:34px;border-radius:10px;display:grid;place-items:center;font-weight:700;font-size:16px;color:#08201E;
  background:linear-gradient(140deg,var(--c-neon),#8BF6EA);
  box-shadow:0 0 0 1px rgba(47,227,208,.5),0 6px 18px rgba(47,227,208,.22);}
.brand-text{display:flex;flex-direction:column;line-height:1.2;}
.site-nav .brand-text strong{color:#fff;font-size:15px;letter-spacing:.02em;}
.site-nav .brand-text em{font-style:normal;color:#7E93A8;font-size:11px;letter-spacing:.08em;}
.nav-links{display:flex;align-items:center;gap:2px;flex:1 1 auto;justify-content:center;}
.nav-links a{position:relative;color:#C9D6E2;font-size:15px;padding:9px 11px;border-radius:8px;transition:color var(--t);}
.nav-links a::after{content:"";position:absolute;left:11px;right:11px;bottom:3px;height:2px;border-radius:2px;
  background:var(--c-neon);transform:scaleX(0);transform-origin:left;transition:transform 240ms ease-out;}
.nav-links a:hover{color:#fff;}
.nav-links a:hover::after{transform:scaleX(1);}
.nav-links a.is-active{color:var(--c-neon);text-shadow:0 0 12px rgba(47,227,208,.55);}
.nav-links a.is-active::after{transform:scaleX(1);box-shadow:0 0 10px rgba(47,227,208,.7);}
.nav-links a.is-active::before{content:"";position:absolute;left:50%;top:1px;width:3px;height:3px;border-radius:50%;
  background:var(--c-neon);transform:translateX(-50%);box-shadow:0 0 8px var(--c-neon);}
.nav-actions{display:flex;align-items:center;gap:12px;flex:0 0 auto;}
.btn-nav{background:#fff;color:var(--c-brand-d);font-size:14px;font-weight:600;padding:9px 18px;border-radius:var(--r-btn);
  transition:box-shadow var(--t),transform var(--t);}
.btn-nav:hover{box-shadow:0 0 0 1.5px var(--c-neon),0 8px 22px rgba(47,227,208,.26);transform:translateY(-1px);}
.nav-toggle{display:none;width:40px;height:36px;flex-direction:column;justify-content:center;gap:5px;align-items:center;}
.nav-toggle span{display:block;width:22px;height:2px;border-radius:2px;background:var(--c-neon);}
.nav-drawer{position:fixed;left:0;right:0;top:64px;bottom:0;z-index:55;background:#08111B;
  display:none;flex-direction:column;padding:22px 20px 34px;overflow-y:auto;}
.nav-drawer.is-open{display:flex;}
.nav-drawer a{color:#C9D6E2;font-size:18px;padding:15px 0;border-bottom:1px solid rgba(255,255,255,.06);}
.nav-drawer a.is-active{color:var(--c-neon);}
.nav-drawer .btn{margin-top:24px;}
@media (max-width:1023px){
  .nav-links{display:none;}
  .nav-toggle{display:flex;}
  .nav-inner{height:56px;}
  .nav-drawer{top:56px;}
}
@media (min-width:1024px){.nav-drawer{display:none !important;}}

/* 通用板块 */
.sec{padding:56px 0;}
@media (min-width:768px){.sec{padding:80px 0;}}
.sec-head{margin-bottom:32px;}
.sec-eyebrow{display:inline-block;font-size:12px;letter-spacing:.14em;color:var(--c-brand);
  background:var(--c-brand-l);border-radius:999px;padding:5px 14px;margin-bottom:14px;}
.sec-title{font-size:23px;font-weight:600;}
@media (min-width:768px){.sec-title{font-size:28px;}}
.sec-sub{margin-top:12px;font-size:16px;color:var(--c-t2);max-width:760px;}

/* Hero */
.hero-band{padding:32px 0 8px;background:linear-gradient(180deg,#EDF4FB 0%,rgba(246,249,252,0) 100%);}
.crumb{display:flex;align-items:center;gap:8px;font-size:13px;color:var(--c-t3);margin-bottom:20px;flex-wrap:wrap;}
.crumb a{color:var(--c-t3);transition:color var(--t);}
.crumb a:hover{color:var(--c-brand);}
.crumb span.sep{color:#C3CFDB;}
.page-title{font-size:30px;font-weight:700;letter-spacing:.01em;}
@media (min-width:768px){.page-title{font-size:40px;}}
.page-lead{margin-top:16px;font-size:17px;color:var(--c-t2);max-width:820px;}
.hero-media{position:relative;margin-top:28px;border-radius:18px;overflow:hidden;height:190px;box-shadow:var(--sh-card);}
@media (min-width:768px){.hero-media{height:260px;}}
.hero-media img{width:100%;height:100%;object-fit:cover;}
.hero-media::after{content:"";position:absolute;inset:0;background:linear-gradient(90deg,rgba(10,20,32,.66),rgba(10,20,32,.12));}
.hero-media .media-tag{position:absolute;left:20px;bottom:18px;z-index:2;display:inline-flex;align-items:center;gap:8px;
  font-size:12px;letter-spacing:.06em;color:#DDFBF7;border:1px solid rgba(47,227,208,.6);border-radius:999px;padding:5px 13px;
  background:rgba(10,20,32,.42);backdrop-filter:blur(2px);}
.hero-media .media-tag i{width:6px;height:6px;border-radius:50%;background:var(--c-neon);box-shadow:0 0 8px var(--c-neon);}

/* 时间轴 */
.timeline{position:relative;margin-top:4px;}
.timeline::before{content:"";position:absolute;left:19px;top:10px;bottom:14px;width:2px;
  background:linear-gradient(180deg,var(--c-neon),rgba(27,91,143,.18));}
.tl-item{position:relative;padding:0 0 26px 62px;}
.tl-item:last-child{padding-bottom:0;}
.tl-node{position:absolute;left:0;top:2px;width:40px;height:40px;border-radius:50%;background:#fff;
  border:2px solid var(--c-brand);color:var(--c-brand);font-weight:700;font-size:14px;
  display:grid;place-items:center;box-shadow:0 0 0 5px var(--c-bg);}
.tl-item:nth-child(3n+1) .tl-node{border-color:var(--c-cta);color:var(--c-cta);}
.tl-card{background:var(--c-card);border:1px solid var(--c-line);border-radius:var(--r-card);
  padding:20px 22px;box-shadow:var(--sh-card);transition:transform var(--t),box-shadow var(--t);}
.tl-card:hover{transform:translateY(-4px);box-shadow:var(--sh-hover);}
.tl-card h3{font-size:18px;font-weight:600;margin-bottom:8px;}
.tl-card p{margin:0;font-size:16px;}
.tl-meta{margin-top:12px;display:inline-block;font-size:12px;letter-spacing:.04em;color:var(--c-brand);
  background:var(--c-brand-l);border-radius:999px;padding:4px 12px;}

/* 卡片网格 */
.grid-3{display:grid;gap:22px;grid-template-columns:1fr;}
@media (min-width:768px){.grid-3{grid-template-columns:repeat(2,1fr);}}
@media (min-width:1024px){.grid-3{grid-template-columns:repeat(3,1fr);}}
.card{background:var(--c-card);border:1px solid var(--c-line);border-radius:var(--r-card);
  box-shadow:var(--sh-card);overflow:hidden;display:flex;flex-direction:column;
  transition:transform var(--t),box-shadow var(--t);}
.card:hover{transform:translateY(-4px);box-shadow:var(--sh-hover);}
.card-media{aspect-ratio:16/9;overflow:hidden;background:var(--c-brand-l);}
.card-media img{width:100%;height:100%;object-fit:cover;}
.card-body{padding:20px;display:flex;flex-direction:column;gap:10px;flex:1;}
.card-body h3{font-size:19px;font-weight:600;}
.card-body p{margin:0;font-size:15.5px;color:var(--c-t2);}
.chip{display:inline-block;font-size:12px;letter-spacing:.04em;color:var(--c-brand);
  background:var(--c-brand-l);border-radius:999px;padding:5px 13px;}
.chip-warm{background:var(--c-cta);color:#fff;}

/* 深色信息面板 */
.panel-dark{position:relative;overflow:hidden;border-radius:var(--r-lg);padding:32px 26px;color:#B9C9D8;
  background:linear-gradient(135deg,#0A1420 0%,#0C2C47 100%);}
.panel-dark::before{content:"";position:absolute;left:0;top:0;width:180px;height:2px;
  background:linear-gradient(90deg,var(--c-neon),rgba(47,227,208,0));}
.panel-dark h2{color:#fff;font-size:23px;}
@media (min-width:768px){.panel-dark{padding:42px 38px;}.panel-dark h2{font-size:26px;}}
.panel-dark .panel-sub{margin-top:12px;font-size:15.5px;color:#93A9BD;max-width:700px;}
.stat-grid{display:grid;gap:20px;grid-template-columns:1fr;margin-top:28px;}
@media (min-width:640px){.stat-grid{grid-template-columns:repeat(2,1fr);}}
@media (min-width:1024px){.stat-grid{grid-template-columns:repeat(4,1fr);}}
.stat-item{border:1px solid rgba(255,255,255,.10);border-radius:14px;padding:18px;background:rgba(255,255,255,.03);}
.stat-num{font-size:24px;font-weight:700;color:#fff;letter-spacing:.01em;}
.stat-label{margin-top:6px;font-size:13px;color:#8FA4B8;letter-spacing:.04em;}
.stat-text{margin-top:8px;font-size:14px;color:#9FB4C7;line-height:1.75;}

/* 内链卡片 */
.link-card{background:var(--c-card);border:1px solid var(--c-line);border-radius:var(--r-card);
  padding:20px;display:flex;gap:16px;align-items:flex-start;box-shadow:var(--sh-card);
  transition:transform var(--t),box-shadow var(--t),background var(--t);}
.link-card:hover{transform:translateY(-4px);box-shadow:var(--sh-hover);background:#FCFEFF;}
.link-thumb{flex:0 0 auto;width:76px;height:76px;border-radius:14px;overflow:hidden;background:var(--c-brand-l);}
.link-thumb img{width:100%;height:100%;object-fit:cover;}
.link-card h3{font-size:17.5px;font-weight:600;margin-bottom:6px;}
.link-card p{margin:0;font-size:14.5px;color:var(--c-t2);}
.link-more{margin-top:10px;display:inline-flex;align-items:center;gap:6px;font-size:13.5px;color:var(--c-brand);font-weight:600;}

/* FAQ */
.faq{display:grid;gap:12px;max-width:900px;}
.faq-item{background:var(--c-card);border:1px solid var(--c-line);border-radius:14px;overflow:hidden;}
.faq-q{width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;
  text-align:left;padding:18px 20px;font-size:17px;font-weight:600;color:var(--c-t1);}
.faq-ico{flex:0 0 auto;width:22px;height:22px;position:relative;}
.faq-ico::before,.faq-ico::after{content:"";position:absolute;left:50%;top:50%;
  background:var(--c-brand);border-radius:2px;transform:translate(-50%,-50%);transition:transform 220ms ease-out;}
.faq-ico::before{width:14px;height:2px;}
.faq-ico::after{width:2px;height:14px;}
.faq-q[aria-expanded="true"] .faq-ico::after{transform:translate(-50%,-50%) scaleY(0);}
.faq-a{max-height:0;overflow:hidden;transition:max-height 260ms ease-out;}
.faq-a-inner{padding:0 20px 20px;font-size:16px;color:var(--c-t2);background:#F8FBFE;}

/* CTA */
.cta-band{margin-top:8px;background:var(--c-brand-l);border:1px solid #D3E5F4;border-radius:var(--r-lg);
  padding:26px 24px;display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:20px;}
.cta-band h2{font-size:21px;}
.cta-band p{margin:8px 0 0;font-size:15px;color:var(--c-t2);}
.cta-actions{display:flex;gap:12px;flex-wrap:wrap;}

/* 页脚 */
.site-foot{margin-top:64px;background:var(--c-bg);border-top:1px solid var(--c-line);padding:52px 0 0;}
.foot-grid{display:grid;gap:34px;grid-template-columns:1fr;}
@media (min-width:768px){.foot-grid{grid-template-columns:1.5fr 1fr 1fr;gap:40px;}}
.foot-brand .brand{display:flex;align-items:center;gap:10px;}
.foot-brand .brand-mark{background:linear-gradient(140deg,var(--c-brand),var(--c-brand-d));color:#fff;
  box-shadow:0 6px 16px rgba(12,44,71,.22);}
.foot-brand .brand-text strong{color:var(--c-t1);font-size:15px;}
.foot-brand .brand-text em{font-style:normal;color:var(--c-t3);font-size:11px;letter-spacing:.08em;}
.foot-desc{margin-top:14px;font-size:14px;line-height:1.85;color:var(--c-t2);max-width:420px;}
.foot-col h3{font-size:15px;color:var(--c-t1);margin-bottom:14px;}
.foot-links{display:grid;gap:10px;}
.foot-links a{font-size:14px;color:var(--c-t2);transition:color var(--t),transform var(--t);}
.foot-links a:hover{color:var(--c-brand);transform:translateX(2px);}
.foot-col ul{display:grid;gap:10px;font-size:14px;color:var(--c-t2);}
.foot-bottom{margin-top:40px;border-top:1px solid var(--c-line);padding:18px 0 22px;
  text-align:center;font-size:13px;color:var(--c-t3);}

/* roulang page: category2 */
:root{
  --c-brand:#1B5B8F;
  --c-brand-d:#0C2C47;
  --c-brand-l:#E8F1F9;
  --c-neon:#2FE3D0;
  --c-cta:#FF7A45;
  --c-cta-d:#EE6A36;
  --c-bg:#F6F9FC;
  --c-card:#FFFFFF;
  --c-line:#E3EBF3;
  --c-t1:#0F1C2E;
  --c-t2:#5A6B7D;
  --c-t3:#93A2B1;
  --c-nav:#0A1420;
  --r-card:16px;
  --r-slab:20px;
  --r-btn:999px;
  --sh-card:0 1px 2px rgba(15,40,70,.06), 0 8px 24px rgba(15,40,70,.08);
  --sh-hover:0 12px 32px rgba(15,40,70,.12);
  --dur:220ms;
}

*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:system-ui,"PingFang SC","Microsoft YaHei","Noto Sans SC",sans-serif;
  font-size:17px;
  line-height:1.88;
  color:var(--c-t1);
  background:var(--c-bg);
  font-variant-numeric:tabular-nums;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;}
a{color:inherit;text-decoration:none;transition:color var(--dur) ease-out,background-color var(--dur) ease-out,transform var(--dur) ease-out;}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer;}
h1,h2,h3,h4,p,ul,ol,figure{margin:0;}
ul,ol{padding:0;list-style:none;}
h1{font-size:40px;line-height:1.3;font-weight:700;letter-spacing:0;}
h2{font-size:28px;line-height:1.35;font-weight:600;}
h3{font-size:20px;line-height:1.45;font-weight:600;}
p{color:var(--c-t2);}
:focus-visible{outline:2px solid var(--c-neon);outline-offset:2px;border-radius:6px;}

.container{max-width:1200px;margin:0 auto;padding-left:20px;padding-right:20px;}
.section{padding:64px 0;}
.section-tight{padding:48px 0;}
.sec-head{max-width:760px;margin-bottom:36px;}
.sec-head .kicker{
  display:inline-block;font-size:13px;letter-spacing:.04em;color:var(--c-brand);
  background:var(--c-brand-l);border-radius:999px;padding:5px 14px;margin-bottom:16px;font-weight:600;
}
.sec-head h2{margin-bottom:12px;}
.sec-head p{font-size:16px;}

/* ---------- 导航 ---------- */
.site-nav{
  position:sticky;top:0;z-index:50;background:var(--c-nav);
}
.site-nav::after{
  content:"";display:block;height:1px;
  background:linear-gradient(90deg,rgba(47,227,208,.85) 0%,rgba(47,227,208,.28) 45%,rgba(47,227,208,0) 100%);
}
.nav-inner{
  max-width:1200px;margin:0 auto;padding:0 20px;height:64px;
  display:flex;align-items:center;gap:24px;
}
.brand{display:flex;align-items:center;gap:12px;flex-shrink:0;}
.brand-mark{
  width:36px;height:36px;border-radius:10px;flex-shrink:0;
  display:flex;align-items:center;justify-content:center;
  background:linear-gradient(140deg,#1B5B8F 0%,#2FE3D0 130%);
  color:#fff;font-weight:700;font-size:17px;letter-spacing:.02em;
  box-shadow:0 0 0 1px rgba(47,227,208,.35),0 6px 16px rgba(47,227,208,.18);
}
.brand-text{display:flex;flex-direction:column;line-height:1.2;}
.brand-text strong{color:#fff;font-size:15.5px;font-weight:600;white-space:nowrap;}
.brand-text em{font-style:normal;font-size:11.5px;color:#7F93A8;letter-spacing:.04em;white-space:nowrap;}
.nav-links{display:flex;align-items:center;gap:4px;margin-left:auto;}
.nav-links a{
  position:relative;padding:8px 12px;font-size:15px;color:#C9D6E2;border-radius:8px;
  white-space:nowrap;
}
.nav-links a::after{
  content:"";position:absolute;left:12px;right:12px;bottom:2px;height:2px;border-radius:2px;
  background:linear-gradient(90deg,var(--c-neon),rgba(47,227,208,.2));
  transform:scaleX(0);transform-origin:left;transition:transform var(--dur) ease-out;
}
.nav-links a:hover{color:#fff;}
.nav-links a:hover::after{transform:scaleX(1);}
.nav-links a.is-active{
  color:var(--c-neon);
  text-shadow:0 0 12px rgba(47,227,208,.55);
}
.nav-links a.is-active::after{transform:scaleX(1);}
.nav-links a.is-active::before{
  content:"";position:absolute;left:0;top:50%;transform:translateY(-50%);
  width:3px;height:3px;border-radius:50%;background:var(--c-neon);
  box-shadow:0 0 8px rgba(47,227,208,.9);
}
.nav-actions{display:flex;align-items:center;gap:12px;flex-shrink:0;}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  font-size:15px;font-weight:600;border-radius:var(--r-btn);
  padding:11px 24px;line-height:1.4;cursor:pointer;
  transition:transform var(--dur) ease-out,box-shadow var(--dur) ease-out,background-color var(--dur) ease-out,color var(--dur) ease-out,border-color var(--dur) ease-out;
}
.btn-primary{background:var(--c-cta);color:#fff;box-shadow:0 8px 20px rgba(255,122,69,.28);}
.btn-primary:hover{background:var(--c-cta-d);transform:translateY(-1px);box-shadow:0 12px 26px rgba(255,122,69,.34);}
.btn-primary:active{transform:translateY(1px);box-shadow:0 4px 12px rgba(255,122,69,.24);}
.btn-ghost{background:transparent;color:var(--c-brand);border:1.5px solid var(--c-brand);}
.btn-ghost:hover{background:var(--c-brand-l);transform:translateY(-1px);}
.btn-ghost:active{transform:translateY(1px);}
.btn-nav{
  background:#EAF2F8;color:#0A1420;padding:9px 20px;font-size:14.5px;
  border:1px solid transparent;
}
.btn-nav:hover{border-color:var(--c-neon);box-shadow:0 0 0 3px rgba(47,227,208,.16);transform:translateY(-1px);}
.nav-toggle{
  display:none;width:40px;height:36px;border-radius:10px;
  align-items:center;justify-content:center;flex-direction:column;gap:5px;
  border:1px solid rgba(47,227,208,.32);
}
.nav-toggle span{display:block;width:18px;height:2px;border-radius:2px;background:var(--c-neon);}

/* ---------- 面包屑 ---------- */
.crumbs{display:flex;align-items:center;gap:8px;font-size:14px;color:var(--c-t3);margin-bottom:20px;flex-wrap:wrap;}
.crumbs a{color:var(--c-t3);}
.crumbs a:hover{color:var(--c-brand);}
.crumbs .cur{color:var(--c-t2);}

/* ---------- Hero ---------- */
.page-hero{padding:44px 0 20px;background:linear-gradient(180deg,#EEF5FB 0%,var(--c-bg) 100%);}
.eyebrow{
  display:inline-block;font-size:12.5px;letter-spacing:.04em;font-weight:600;
  color:var(--c-brand);background:#fff;border:1px solid var(--c-line);
  border-radius:999px;padding:6px 14px;margin-bottom:18px;
}
.page-hero h1{max-width:900px;margin-bottom:18px;color:var(--c-t1);}
.hero-lead{max-width:820px;font-size:17px;}
.hero-cta{display:flex;gap:14px;flex-wrap:wrap;margin:26px 0 32px;}
.hero-figure{margin:0;}
.hero-figure img{
  width:100%;height:280px;object-fit:cover;border-radius:var(--r-slab);
  box-shadow:var(--sh-card);border:1px solid var(--c-line);
}

/* ---------- 双列对照 ---------- */
.compare-grid{display:grid;grid-template-columns:1fr 1fr;gap:24px;}
.compare-col{
  background:var(--c-card);border:1px solid var(--c-line);border-radius:var(--r-card);
  padding:28px;box-shadow:var(--sh-card);
}
.compare-col.is-dark{
  background:linear-gradient(160deg,#0C2C47 0%,#123A5C 100%);
  border-color:rgba(47,227,208,.22);
}
.compare-col.is-dark h3,
.compare-col.is-dark .cmp-title{color:#fff;}
.compare-col.is-dark p,
.compare-col.is-dark li{color:#B9CBDA;}
.compare-head{display:flex;align-items:center;gap:10px;margin-bottom:18px;}
.cmp-title{font-size:19px;font-weight:600;color:var(--c-t1);}
.dot{width:8px;height:8px;border-radius:50%;flex-shrink:0;}
.dot-warn{background:var(--c-cta);box-shadow:0 0 0 4px rgba(255,122,69,.14);}
.dot-safe{background:var(--c-neon);box-shadow:0 0 0 4px rgba(47,227,208,.16);}
.cmp-list li{
  position:relative;padding:12px 0 12px 22px;font-size:15.5px;line-height:1.8;
  border-bottom:1px dashed var(--c-line);
}
.cmp-list li:last-child{border-bottom:0;}
.compare-col.is-dark .cmp-list li{border-bottom-color:rgba(255,255,255,.09);}
.cmp-list li::before{
  content:"";position:absolute;left:0;top:21px;width:8px;height:8px;border-radius:50%;
  background:var(--c-cta);
}
.compare-col.is-dark .cmp-list li::before{background:var(--c-neon);}
.cmp-list li strong{color:var(--c-t1);font-weight:600;}
.compare-col.is-dark .cmp-list li strong{color:#fff;}

/* ---------- 索引 + 内容 ---------- */
.split-layout{display:grid;grid-template-columns:250px 1fr;gap:48px;align-items:start;}
.toc-sticky{position:sticky;top:88px;}
.toc-box{
  background:var(--c-card);border:1px solid var(--c-line);border-radius:var(--r-card);
  padding:20px;box-shadow:var(--sh-card);
}
.toc-box h3{font-size:14px;letter-spacing:.04em;color:var(--c-t3);font-weight:600;margin-bottom:14px;}
.toc-box a{
  display:block;padding:9px 10px;border-radius:10px;font-size:15px;color:var(--c-t2);
  border-left:3px solid transparent;
}
.toc-box a:hover{background:var(--c-brand-l);color:var(--c-brand);border-left-color:var(--c-brand);}
.content-blocks > article{
  background:var(--c-card);border:1px solid var(--c-line);border-radius:var(--r-card);
  padding:28px;box-shadow:var(--sh-card);margin-bottom:22px;
  transition:box-shadow var(--dur) ease-out,transform var(--dur) ease-out;
}
.content-blocks > article:hover{box-shadow:var(--sh-hover);transform:translateY(-4px);}
.content-blocks h2{
  font-size:22px;margin-bottom:14px;padding-left:14px;position:relative;line-height:1.45;
}
.content-blocks h2::before{
  content:"";position:absolute;left:0;top:6px;bottom:6px;width:3px;border-radius:3px;
  background:var(--c-neon);
}
.content-blocks p{margin-bottom:14px;font-size:16px;}
.content-blocks p:last-child{margin-bottom:0;}
.mini-points{display:flex;flex-wrap:wrap;gap:10px;margin-top:16px;}
.mini-points span{
  font-size:13.5px;color:var(--c-brand);background:var(--c-brand-l);
  border-radius:999px;padding:6px 14px;
}
.callout{
  background:var(--c-brand-l);border-left:4px solid var(--c-brand);
  border-radius:0 12px 12px 0;padding:16px 20px;margin-top:16px;font-size:15.5px;color:var(--c-t2);
}

/* ---------- 编号清单 ---------- */
.steps{display:grid;gap:18px;}
.step-row{
  display:grid;grid-template-columns:96px 1fr;gap:24px;align-items:center;
  background:var(--c-card);border:1px solid var(--c-line);border-radius:var(--r-card);
  padding:22px 26px;box-shadow:var(--sh-card);
  transition:box-shadow var(--dur) ease-out,transform var(--dur) ease-out,background-color var(--dur) ease-out;
}
.step-row:hover{box-shadow:var(--sh-hover);transform:translateY(-4px);background:#FBFDFF;}
.step-num{
  font-size:40px;font-weight:700;line-height:1;
  color:transparent;-webkit-text-stroke:1.5px var(--c-brand);
  letter-spacing:.02em;
}
.step-body h3{margin-bottom:8px;}
.step-body p{font-size:15.5px;}
.step-media{display:grid;grid-template-columns:1fr 220px;gap:24px;align-items:center;}
.step-media img{
  width:100%;height:130px;object-fit:cover;border-radius:14px;border:1px solid var(--c-line);
}

/* ---------- 数据面板 ---------- */
.panel-dark{
  background:linear-gradient(150deg,#0A1420 0%,#0F2A42 60%,#123A5C 100%);
  border-radius:var(--r-slab);padding:40px;color:#fff;
  border:1px solid rgba(47,227,208,.18);position:relative;overflow:hidden;
}
.panel-dark::after{
  content:"";position:absolute;right:-60px;top:-60px;width:220px;height:220px;border-radius:50%;
  background:radial-gradient(circle,rgba(47,227,208,.16) 0%,rgba(47,227,208,0) 70%);
}
.panel-dark h2{color:#fff;margin-bottom:12px;}
.panel-dark > p{color:#A9BDCE;max-width:720px;margin-bottom:28px;}
.metrics{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;position:relative;z-index:1;}
.metric{
  background:rgba(255,255,255,.05);border:1px solid rgba(255,255,255,.1);
  border-radius:14px;padding:20px;
}
.metric b{display:block;font-size:30px;font-weight:700;color:var(--c-neon);line-height:1.2;}
.metric span{display:block;font-size:14px;color:#9FB3C4;margin-top:6px;line-height:1.7;}
.status-bar{
  margin-top:26px;height:4px;border-radius:4px;background:rgba(255,255,255,.1);overflow:hidden;position:relative;z-index:1;
}
.status-bar i{display:block;height:100%;width:72%;border-radius:4px;background:linear-gradient(90deg,var(--c-neon),#1B5B8F);}

/* ---------- 内链区块 ---------- */
.link-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px;}
.link-card{
  display:block;background:var(--c-card);border:1px solid var(--c-line);border-radius:var(--r-card);
  padding:24px;box-shadow:var(--sh-card);
  transition:box-shadow var(--dur) ease-out,transform var(--dur) ease-out,border-color var(--dur) ease-out;
}
.link-card:hover{box-shadow:var(--sh-hover);transform:translateY(-4px);border-color:rgba(27,91,143,.3);}
.link-card .tag{
  display:inline-block;font-size:12.5px;color:var(--c-brand);background:var(--c-brand-l);
  border-radius:999px;padding:4px 12px;margin-bottom:14px;letter-spacing:.04em;
}
.link-card h3{font-size:18px;margin-bottom:8px;}
.link-card p{font-size:15px;margin-bottom:14px;}
.link-card .more{font-size:14.5px;color:var(--c-brand);font-weight:600;}
.link-card:hover .more{color:var(--c-cta);}
.link-card img{width:100%;height:150px;object-fit:cover;border-radius:12px;margin-bottom:16px;}

/* ---------- FAQ ---------- */
.faq-list{display:grid;gap:12px;max-width:920px;}
.faq-item{
  background:var(--c-card);border:1px solid var(--c-line);border-radius:14px;overflow:hidden;
  transition:box-shadow var(--dur) ease-out,border-color var(--dur) ease-out;
}
.faq-item:hover{box-shadow:var(--sh-card);}
.faq-item.is-open{border-color:rgba(27,91,143,.32);box-shadow:var(--sh-card);}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:18px;
  padding:20px 24px;text-align:left;font-size:16.5px;font-weight:600;color:var(--c-t1);
}
.faq-icon{
  flex-shrink:0;width:26px;height:26px;border-radius:50%;
  display:flex;align-items:center;justify-content:center;
  background:var(--c-brand-l);color:var(--c-brand);font-size:17px;line-height:1;
  transition:transform var(--dur) ease-out,background-color var(--dur) ease-out,color var(--dur) ease-out;
}
.faq-item.is-open .faq-icon{transform:rotate(45deg);background:var(--c-cta);color:#fff;}
.faq-a{max-height:0;overflow:hidden;transition:max-height 300ms ease-out;}
.faq-a-inner{padding:0 24px 22px;font-size:15.5px;color:var(--c-t2);background:#FAFCFE;}

/* ---------- CTA ---------- */
.cta-band{
  background:var(--c-card);border:1px solid var(--c-line);border-radius:var(--r-slab);
  padding:36px 40px;display:flex;align-items:center;justify-content:space-between;gap:32px;
  box-shadow:var(--sh-card);position:relative;overflow:hidden;
}
.cta-band::before{
  content:"";position:absolute;left:0;top:0;bottom:0;width:5px;
  background:linear-gradient(180deg,var(--c-neon),var(--c-brand));
}
.cta-band h2{font-size:24px;margin-bottom:10px;}
.cta-band p{font-size:16px;max-width:640px;}

/* ---------- 页脚 ---------- */
.site-foot{background:var(--c-bg);border-top:1px solid var(--c-line);margin-top:24px;}
.foot-grid{
  display:grid;grid-template-columns:1.4fr 1fr 1fr;gap:40px;padding:56px 0 36px;
}
.foot-brand .brand{margin-bottom:16px;}
.foot-brand .brand-text strong{color:var(--c-t1);}
.foot-brand .brand-text em{color:var(--c-t3);}
.foot-brand .brand-mark{box-shadow:none;}
.foot-desc{font-size:14.5px;line-height:1.85;color:var(--c-t2);max-width:420px;}
.foot-col h3{font-size:15px;font-weight:600;color:var(--c-t1);margin-bottom:16px;letter-spacing:.02em;}
.foot-links{display:flex;flex-direction:column;gap:10px;}
.foot-links a{font-size:14.5px;color:var(--c-t2);}
.foot-links a:hover{color:var(--c-brand);transform:translateX(2px);}
.foot-col ul{display:flex;flex-direction:column;gap:10px;}
.foot-col ul li{font-size:14.5px;color:var(--c-t2);}
.foot-bottom{
  border-top:1px solid var(--c-line);padding:20px 0 28px;text-align:center;
  font-size:13px;color:var(--c-t3);
}

/* ---------- 响应式 ---------- */
@media (max-width:1024px){
  .nav-links{gap:0;}
  .nav-links a{padding:8px 9px;font-size:14px;}
  .split-layout{grid-template-columns:1fr;gap:28px;}
  .toc-sticky{position:static;}
  .toc-box{display:flex;flex-wrap:wrap;gap:6px;align-items:center;padding:14px;}
  .toc-box h3{width:100%;margin-bottom:6px;}
  .toc-box a{padding:8px 12px;border:1px solid var(--c-line);border-left-width:1px;font-size:14px;}
  .link-grid{grid-template-columns:1fr 1fr;}
  .foot-grid{grid-template-columns:1fr 1fr;gap:34px;}
}
@media (max-width:768px){
  body{font-size:16px;}
  h1{font-size:30px;}
  h2{font-size:23px;}
  h3{font-size:18px;}
  .section{padding:48px 0;}
  .section-tight{padding:36px 0;}
  .nav-inner{height:56px;padding:0 16px;gap:12px;}
  .brand-text em{display:none;}
  .brand-text strong{font-size:14.5px;}
  .nav-links{
    position:fixed;inset:56px 0 0 0;background:var(--c-nav);
    flex-direction:column;align-items:stretch;gap:0;padding:24px 20px 40px;
    transform:translateX(100%);transition:transform 260ms ease-out;
    overflow-y:auto;display:flex;
  }
  .nav-links.is-open{transform:translateX(0);}
  .nav-links a{padding:16px 6px;font-size:19px;border-bottom:1px solid rgba(255,255,255,.07);border-radius:0;}
  .nav-links a::after{display:none;}
  .nav-links a.is-active::before{left:auto;right:0;width:6px;height:6px;}
  .nav-toggle{display:flex;}
  .btn-nav{display:none;}
  .container{padding-left:16px;padding-right:16px;}
  .page-hero{padding:28px 0 8px;}
  .hero-figure img{height:200px;border-radius:14px;}
  .compare-grid{grid-template-columns:1fr;}
  .step-row{grid-template-columns:1fr;gap:12px;padding:20px;}
  .step-num{font-size:32px;}
  .step-media{grid-template-columns:1fr;}
  .step-media img{height:160px;}
  .metrics{grid-template-columns:1fr;}
  .panel-dark{padding:26px;}
  .link-grid{grid-template-columns:1fr;}
  .cta-band{flex-direction:column;align-items:flex-start;padding:26px 24px;}
  .cta-band .btn{width:100%;}
  .foot-grid{grid-template-columns:1fr;gap:30px;padding:40px 0 26px;}
  .faq-q{padding:16px 18px;font-size:15.5px;gap:12px;}
  .faq-a-inner{padding:0 18px 18px;}
  .content-blocks > article{padding:22px 20px;}
}
@media (max-width:520px){
  h1{font-size:26px;}
  .hero-cta{flex-direction:column;align-items:stretch;}
  .hero-cta .btn{width:100%;}
  .steps{gap:14px;}
}

/* roulang page: category3 */
:root{
  --c-brand:#1B5B8F;
  --c-brand-d:#0C2C47;
  --c-brand-l:#E8F1F9;
  --c-neon:#2FE3D0;
  --c-cta:#FF7A45;
  --c-bg:#F6F9FC;
  --c-card:#FFFFFF;
  --c-line:#E3EBF3;
  --c-t1:#0F1C2E;
  --c-t2:#5A6B7D;
  --c-t3:#93A2B1;
  --c-nav:#0A1420;
  --r-card:16px;
  --r-frag:20px;
  --sh-card:0 1px 2px rgba(15,40,70,.06),0 8px 24px rgba(15,40,70,.08);
  --sh-hover:0 12px 32px rgba(15,40,70,.12);
  --ease:220ms ease-out;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:system-ui,"PingFang SC","Microsoft YaHei","Noto Sans SC",sans-serif;
  background:var(--c-bg);
  color:var(--c-t2);
  font-size:17px;
  line-height:1.88;
  font-variant-numeric:tabular-nums;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
button{font:inherit;color:inherit}
h1,h2,h3,h4{margin:0;color:var(--c-t1);line-height:1.3;font-weight:600}
p{margin:0 0 1.15em}
p:last-child{margin-bottom:0}
ul,ol{margin:0;padding:0;list-style:none}
:focus-visible{outline:2px solid var(--c-neon);outline-offset:2px;border-radius:6px}
.container{max-width:1200px;margin:0 auto;padding:0 20px}
@media (min-width:768px){.container{padding:0 32px}}
.section{padding:64px 0}
@media (min-width:768px){.section{padding:96px 0}}

/* 顶部导航 */
.site-nav{position:sticky;top:0;z-index:50;background:var(--c-nav)}
.site-nav::after{content:"";display:block;height:1px;background:linear-gradient(90deg,rgba(47,227,208,.85),rgba(47,227,208,.05))}
.nav-inner{max-width:1200px;margin:0 auto;padding:0 20px;height:64px;display:flex;align-items:center;justify-content:space-between;gap:20px}
@media (min-width:768px){.nav-inner{padding:0 32px}}
.brand{display:flex;align-items:center;gap:10px;text-decoration:none}
.brand-mark{width:34px;height:34px;flex:none;border-radius:10px;background:linear-gradient(135deg,#2FE3D0,#1B5B8F);color:#06131F;font-weight:800;display:flex;align-items:center;justify-content:center;font-size:16px}
.brand-text{display:flex;flex-direction:column;line-height:1.25}
.brand-text strong{color:#fff;font-size:15px;font-weight:700;letter-spacing:.02em}
.brand-text em{font-style:normal;font-size:11px;color:#7F93A6;letter-spacing:.06em}
.nav-links{display:flex;align-items:center;gap:2px}
.nav-links a{position:relative;display:inline-block;color:#C9D6E2;font-size:15px;padding:8px 10px;border-radius:8px;transition:color var(--ease)}
.nav-links a::after{content:"";position:absolute;left:10px;right:10px;bottom:2px;height:2px;border-radius:2px;background:var(--c-neon);transform:scaleX(0);transform-origin:left center;transition:transform var(--ease)}
.nav-links a:hover{color:#fff}
.nav-links a:hover::after{transform:scaleX(1)}
.nav-links a.is-active{color:var(--c-neon);padding-left:18px;text-shadow:0 0 12px rgba(47,227,208,.5)}
.nav-links a.is-active::before{content:"";position:absolute;left:4px;top:50%;width:5px;height:5px;border-radius:50%;background:var(--c-neon);transform:translateY(-50%);box-shadow:0 0 8px var(--c-neon)}
.nav-links a.is-active::after{transform:scaleX(1);box-shadow:0 0 10px rgba(47,227,208,.75)}
.nav-mobile-cta{display:none}
.nav-actions{display:flex;align-items:center;gap:12px}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:6px;border-radius:999px;font-size:15px;font-weight:600;padding:12px 24px;border:1.5px solid transparent;cursor:pointer;transition:all var(--ease);white-space:nowrap}
.btn-primary{background:var(--c-cta);color:#fff;box-shadow:0 8px 20px rgba(255,122,69,.26)}
.btn-primary:hover{background:#F26A31;transform:translateY(-1px);box-shadow:0 12px 26px rgba(255,122,69,.34)}
.btn-primary:active{transform:translateY(1px);box-shadow:0 4px 12px rgba(255,122,69,.24)}
.btn-ghost{border-color:var(--c-brand);color:var(--c-brand);background:transparent}
.btn-ghost:hover{background:var(--c-brand-l)}
.btn-nav{background:#EAF3FB;color:#0C2C47;padding:9px 18px;border-radius:999px;font-size:15px}
.btn-nav:hover{color:#0C2C47;box-shadow:0 0 0 2px rgba(47,227,208,.7)}
.nav-toggle{display:none;width:40px;height:40px;border:0;background:transparent;flex-direction:column;justify-content:center;align-items:center;gap:5px;cursor:pointer;padding:0}
.nav-toggle span{display:block;width:22px;height:2px;border-radius:2px;background:var(--c-neon);transition:transform var(--ease),opacity var(--ease)}
.nav-toggle.is-open span:nth-child(1){transform:translateY(7px) rotate(45deg)}
.nav-toggle.is-open span:nth-child(2){opacity:0}
.nav-toggle.is-open span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}

/* 面包屑与标签 */
.crumbs{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:14px;color:var(--c-t3);margin-bottom:22px}
.crumbs a{transition:color var(--ease)}
.crumbs a:hover{color:var(--c-brand)}
.crumbs .cur{color:var(--c-t2)}
.badge{display:inline-flex;align-items:center;height:26px;padding:0 12px;border-radius:999px;background:var(--c-brand-l);color:var(--c-brand);font-size:12px;font-weight:600;letter-spacing:.04em}
.badge-cta{background:var(--c-cta);color:#fff}

/* 首屏 */
.page-hero{padding:44px 0 0}
.page-hero h1{font-size:30px;font-weight:700;margin:16px 0 0;max-width:900px}
@media (min-width:768px){.page-hero h1{font-size:40px}}
.hero-sub{margin:18px 0 26px;max-width:780px;font-size:17px;color:var(--c-t2)}
.hero-btns{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:34px}
.hero-banner{margin:0;border-radius:20px;overflow:hidden;box-shadow:var(--sh-card);position:relative;background:var(--c-brand-d)}
.hero-banner img{width:100%;height:200px;object-fit:cover}
@media (min-width:768px){.hero-banner img{height:260px}}
.hero-stats{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:18px;margin-top:32px;padding-top:26px;border-top:1px solid var(--c-line)}
.stat b{display:block;font-size:28px;font-weight:700;color:var(--c-brand-d);line-height:1.2}
@media (min-width:768px){.stat b{font-size:32px}}
.stat span{font-size:13px;color:var(--c-t3);letter-spacing:.02em}

/* 板块标题 */
.sec-head{max-width:780px;margin-bottom:36px}
.sec-head h2{font-size:23px;font-weight:600;margin-bottom:10px}
@media (min-width:768px){.sec-head h2{font-size:28px}}
.sec-head p{font-size:16px;color:var(--c-t2);margin:0}

/* 编号清单 */
.rank-list{border-top:1px solid var(--c-line)}
.rank-item{display:grid;grid-template-columns:88px minmax(0,1fr) 190px;gap:28px;align-items:center;padding:26px 20px;border-bottom:1px solid var(--c-line);transition:background var(--ease)}
.rank-item:hover{background:var(--c-brand-l)}
.rank-num{font-size:48px;font-weight:800;line-height:1;letter-spacing:-.02em;color:#CFE0EE}
@supports (-webkit-text-stroke:1px #000){
  .rank-num{color:transparent;-webkit-text-stroke:1.5px var(--c-brand)}
}
.rank-body h3{font-size:20px;font-weight:600;margin-bottom:8px}
.rank-body p{margin:0;font-size:16px;color:var(--c-t2)}
.rank-thumb{width:190px;height:112px;object-fit:cover;border-radius:14px;background:var(--c-brand-l)}
@media (max-width:768px){
  .rank-item{grid-template-columns:56px minmax(0,1fr);gap:16px;padding:22px 6px}
  .rank-num{font-size:34px}
  .rank-thumb{grid-column:2;width:100%;height:158px;margin-top:6px}
}

/* 深色流程面板 */
.flow-panel{background:linear-gradient(150deg,#0A1420 0%,#0C2C47 100%);border-radius:24px;padding:34px 24px;color:#C9D6E2;box-shadow:0 18px 44px rgba(10,20,32,.22)}
@media (min-width:768px){.flow-panel{padding:48px 44px}}
.flow-head{display:flex;flex-wrap:wrap;align-items:center;gap:12px;margin-bottom:34px}
.flow-head h2{color:#fff;font-size:23px;margin:0}
@media (min-width:768px){.flow-head h2{font-size:28px}}
.flow-head p{width:100%;margin:0;font-size:15px;color:#9FB3C6}
.dot-live{width:8px;height:8px;border-radius:50%;background:var(--c-neon);box-shadow:0 0 12px var(--c-neon);flex:none}
.flow-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:24px}
@media (max-width:920px){.flow-grid{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media (max-width:560px){.flow-grid{grid-template-columns:1fr}}
.flow-step{border-top:2px solid rgba(47,227,208,.45);padding-top:16px}
.flow-idx{display:inline-block;font-size:12px;letter-spacing:.06em;color:var(--c-neon);margin-bottom:8px}
.flow-step h3{color:#fff;font-size:18px;margin-bottom:8px}
.flow-step p{margin:0;font-size:15px;color:#9FB3C6;line-height:1.75}
.status-bar{margin-top:32px;display:flex;gap:14px;align-items:flex-start;background:rgba(47,227,208,.08);border:1px solid rgba(47,227,208,.28);border-radius:14px;padding:16px 20px}
.status-bar span{flex:none;font-size:12px;font-weight:700;letter-spacing:.04em;color:#06131F;background:var(--c-neon);border-radius:999px;padding:4px 10px;margin-top:3px}
.status-bar p{margin:0;font-size:15px;color:#C9D6E2}

/* 场景 */
.scene-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:24px}
@media (max-width:820px){.scene-grid{grid-template-columns:1fr}}
.scene-card{background:var(--c-card);border:1px solid var(--c-line);border-radius:var(--r-card);padding:24px;box-shadow:var(--sh-card);transition:transform var(--ease),box-shadow var(--ease)}
.scene-card:hover{transform:translateY(-4px);box-shadow:var(--sh-hover)}
.scene-card h3{font-size:20px;margin:14px 0 10px}
.scene-card ul{margin-top:14px;padding-top:14px;border-top:1px solid var(--c-line)}
.scene-card li{position:relative;padding-left:18px;font-size:15px;margin-bottom:8px}
.scene-card li::before{content:"";position:absolute;left:0;top:11px;width:6px;height:6px;border-radius:50%;background:var(--c-brand)}
.scene-card li:nth-child(even)::before{background:var(--c-cta)}
.scene-wide{margin-top:24px;background:var(--c-brand-l);border-radius:var(--r-card);padding:24px;display:flex;flex-wrap:wrap;gap:18px;align-items:center;justify-content:space-between}
.scene-wide h3{font-size:19px;margin-bottom:8px}
.scene-wide p{margin:0;font-size:15px;max-width:760px}

/* 内链卡片 */
.link-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:20px}
@media (max-width:768px){.link-grid{grid-template-columns:1fr}}
.link-card{display:block;background:var(--c-card);border:1px solid var(--c-line);border-radius:var(--r-card);padding:22px 24px;box-shadow:0 1px 2px rgba(15,40,70,.06);transition:transform var(--ease),box-shadow var(--ease),border-color var(--ease)}
.link-card:hover{transform:translateY(-4px);box-shadow:var(--sh-hover);border-color:#CFE1F2}
.link-card h3{font-size:18px;margin-bottom:8px}
.link-card p{margin:0;font-size:15px;color:var(--c-t2)}
.link-card .more{display:inline-block;margin-top:12px;font-size:14px;font-weight:600;color:var(--c-brand)}

/* FAQ */
.faq-item{margin-bottom:14px}
.faq-q{width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;background:var(--c-card);border:1px solid var(--c-line);border-radius:14px;padding:18px 20px;font-size:17px;font-weight:600;color:var(--c-t1);text-align:left;cursor:pointer;transition:background var(--ease),border-color var(--ease)}
.faq-q:hover{border-color:#CFE1F2}
.faq-icon{position:relative;width:14px;height:14px;flex:none}
.faq-icon::before,.faq-icon::after{content:"";position:absolute;background:var(--c-brand);border-radius:2px;transition:transform var(--ease)}
.faq-icon::before{left:0;top:6px;width:14px;height:2px}
.faq-icon::after{left:6px;top:0;width:2px;height:14px}
.faq-item.is-open .faq-q{background:var(--c-brand-l);border-color:#CFE1F2}
.faq-item.is-open .faq-icon::after{transform:scaleY(0)}
.faq-a{max-height:0;overflow:hidden;background:#F1F5F9;border-radius:0 0 14px 14px;transition:max-height 300ms ease}
.faq-item.is-open .faq-a{max-height:360px}
.faq-a p{padding:16px 20px;margin:0;font-size:15px;color:var(--c-t2)}

/* CTA */
.cta-band{padding:0 0 64px}
@media (min-width:768px){.cta-band{padding:0 0 96px}}
.cta-inner{background:linear-gradient(120deg,#0C2C47,#1B5B8F);border-radius:20px;padding:30px 24px;display:flex;flex-wrap:wrap;gap:22px;align-items:center;justify-content:space-between;box-shadow:0 18px 40px rgba(12,44,71,.2)}
@media (min-width:768px){.cta-inner{padding:36px 40px}}
.cta-inner h2{color:#fff;font-size:22px;margin-bottom:8px}
.cta-inner p{color:#C7D8E6;margin:0;font-size:15px;max-width:720px}

/* 页脚 */
.site-foot{background:var(--c-bg);border-top:1px solid var(--c-line);padding-top:56px}
.foot-grid{display:grid;grid-template-columns:2fr 1fr 1fr;gap:40px;padding-bottom:40px}
@media (max-width:900px){.foot-grid{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media (max-width:600px){.foot-grid{grid-template-columns:1fr}}
.site-foot .brand{margin-bottom:0}
.site-foot .brand-text strong{color:var(--c-t1)}
.site-foot .brand-text em{color:var(--c-t3)}
.foot-desc{margin-top:16px;font-size:15px;color:var(--c-t2);max-width:440px}
.foot-col h3{font-size:15px;margin-bottom:16px}
.foot-links{display:flex;flex-direction:column;gap:10px}
.foot-links a{display:inline-block;font-size:15px;color:var(--c-t2);transition:color var(--ease),transform var(--ease)}
.foot-links a:hover{color:var(--c-brand);transform:translateX(2px)}
.foot-col li{font-size:15px;color:var(--c-t2);margin-bottom:10px}
.foot-bottom{border-top:1px solid var(--c-line);padding:20px 0;text-align:center;font-size:13px;color:var(--c-t3)}

/* 移动端抽屉 */
@media (max-width:1080px){
  .nav-links{position:fixed;left:0;right:0;top:64px;bottom:0;flex-direction:column;align-items:stretch;gap:2px;padding:26px 24px 48px;background:var(--c-nav);overflow-y:auto;opacity:0;visibility:hidden;transform:translateY(-10px);transition:opacity var(--ease),transform var(--ease),visibility var(--ease)}
  .nav-links.is-open{opacity:1;visibility:visible;transform:none}
  .nav-links a{font-size:19px;padding:14px 4px;border-bottom:1px solid rgba(201,214,226,.08);border-radius:0}
  .nav-links a::after{display:none}
  .nav-links a:hover::after{display:none}
  .nav-mobile-cta{display:block !important;margin-top:18px;text-align:center;background:#EAF3FB;color:#0C2C47 !important;border-radius:999px;font-weight:600;border-bottom:0 !important;padding:14px 20px !important}
  .nav-toggle{display:flex}
  .nav-actions .btn-nav{display:none}
}
@media (max-width:520px){
  .hero-stats{grid-template-columns:1fr;gap:14px}
  .brand-text em{display:none}
  .status-bar{flex-direction:column;gap:10px}
}

/* roulang page: category4 */
:root{
  --c-brand:#1B5B8F;
  --c-brand-d:#0C2C47;
  --c-brand-l:#E8F1F9;
  --c-neon:#2FE3D0;
  --c-cta:#FF7A45;
  --c-bg:#F6F9FC;
  --c-card:#FFFFFF;
  --c-line:#E3EBF3;
  --c-t1:#0F1C2E;
  --c-t2:#5A6B7D;
  --c-t3:#93A2B1;
  --c-nav:#0A1420;
  --r-card:16px;
  --r-frag:20px;
  --sh-card:0 1px 2px rgba(15,40,70,.06), 0 8px 24px rgba(15,40,70,.08);
  --sh-hover:0 12px 32px rgba(15,40,70,.12);
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
html body{
  margin:0;
  padding:0;
  font-family:system-ui,"PingFang SC","Microsoft YaHei","Noto Sans SC",sans-serif;
  font-size:17px;
  line-height:1.88;
  color:var(--c-t2);
  background:var(--c-bg);
  font-variant-numeric:tabular-nums;
}
img{display:block;max-width:100%;height:auto}
a{color:inherit;text-decoration:none}
button{font-family:inherit;cursor:pointer}
h1,h2,h3,h4{margin:0;color:var(--c-t1);line-height:1.3;font-weight:600}
p{margin:0 0 1.15em}
ul{margin:0;padding:0;list-style:none}
:focus-visible{outline:2px solid var(--c-neon);outline-offset:2px}

.container{width:100%;max-width:1200px;margin:0 auto;padding:0 20px}
@media(min-width:768px){.container{padding:0 32px}}

/* ============ 导航 ============ */
.site-nav{
  position:sticky;top:0;z-index:50;
  background:var(--c-nav);
  height:64px;
}
.site-nav::after{
  content:"";display:block;height:1px;
  background:linear-gradient(90deg,rgba(47,227,208,.85) 0%,rgba(47,227,208,.35) 38%,rgba(47,227,208,0) 100%);
}
.nav-inner{
  max-width:1200px;margin:0 auto;padding:0 20px;
  height:63px;display:flex;align-items:center;gap:20px;
}
@media(min-width:768px){.nav-inner{padding:0 32px}}
.brand{display:flex;align-items:center;gap:10px;flex-shrink:0}
.brand-mark{
  width:34px;height:34px;border-radius:10px;display:grid;place-items:center;
  font-weight:700;font-size:16px;color:#04121C;
  background:linear-gradient(135deg,#1B5B8F 0%,#2FE3D0 100%);
  box-shadow:0 0 0 1px rgba(47,227,208,.45),0 0 16px rgba(47,227,208,.32);
}
.brand-text{display:flex;flex-direction:column;line-height:1.25}
.brand-text strong{font-size:16px;font-weight:700;letter-spacing:.01em}
.brand-text em{font-style:normal;font-size:11px;letter-spacing:.06em}
.site-nav .brand-text strong{color:#FFFFFF}
.site-nav .brand-text em{color:#7F95A8}

.nav-links{display:none;margin-left:auto;gap:22px;align-items:center}
.nav-links a{
  position:relative;color:#C9D6E2;font-size:15px;padding:6px 0;
  transition:color 200ms ease-out;
}
.nav-links a::after{
  content:"";position:absolute;left:0;bottom:0;height:2px;width:0;
  background:var(--c-neon);border-radius:2px;
  transition:width 240ms ease-out;
  box-shadow:0 0 10px rgba(47,227,208,.7);
}
.nav-links a:hover{color:#FFFFFF}
.nav-links a:hover::after{width:100%}
.nav-links a.is-active{color:var(--c-neon);text-shadow:0 0 12px rgba(47,227,208,.55)}
.nav-links a.is-active::after{width:100%}
.nav-links a.is-active::before{
  content:"";position:absolute;left:50%;top:-9px;transform:translateX(-50%);
  width:5px;height:5px;border-radius:50%;background:var(--c-neon);
  box-shadow:0 0 10px rgba(47,227,208,.9);
}
.nav-actions{margin-left:auto;display:flex;align-items:center;gap:12px}
.btn{
  display:inline-flex;align-items:center;justify-content:center;
  border-radius:999px;border:1.5px solid transparent;
  font-size:15px;font-weight:600;line-height:1;
  padding:11px 22px;
  transition:transform 220ms ease-out,box-shadow 220ms ease-out,background 220ms ease-out,color 220ms ease-out,border-color 220ms ease-out;
}
.btn:active{transform:translateY(1px)}
.btn-primary{
  background:var(--c-cta);color:#FFFFFF;
  box-shadow:0 6px 18px rgba(255,122,69,.32);
}
.btn-primary:hover{background:#F26A32;transform:translateY(-1px);box-shadow:0 10px 26px rgba(255,122,69,.4)}
.btn-ghost{
  background:transparent;color:var(--c-brand);border-color:var(--c-brand);
}
.btn-ghost:hover{background:var(--c-brand-l)}
.btn-nav{
  background:#EAF3FA;color:#0C2C47;font-size:14px;padding:9px 18px;
  box-shadow:none;
}
.btn-nav:hover{
  background:#FFFFFF;transform:translateY(-1px);
  box-shadow:0 0 0 1.5px var(--c-neon),0 0 18px rgba(47,227,208,.4);
}
.nav-toggle{
  display:flex;flex-direction:column;justify-content:center;gap:4px;
  width:40px;height:40px;border-radius:12px;background:transparent;border:1px solid rgba(47,227,208,.35);
  padding:0 9px;
}
.nav-toggle span{display:block;height:2px;width:100%;background:var(--c-neon);border-radius:2px;transition:transform 220ms ease-out,opacity 180ms ease-out}
body.nav-open .nav-toggle span:nth-child(1){transform:translateY(6px) rotate(45deg)}
body.nav-open .nav-toggle span:nth-child(2){opacity:0}
body.nav-open .nav-toggle span:nth-child(3){transform:translateY(-6px) rotate(-45deg)}

@media(min-width:1024px){
  .nav-links{display:flex}
  .nav-toggle{display:none}
  .nav-actions{margin-left:0}
}
@media(max-width:1023px){
  .site-nav{height:56px}
  .nav-inner{height:55px}
  body.nav-open{overflow:hidden}
  body.nav-open .nav-links{
    display:flex;flex-direction:column;align-items:flex-start;gap:6px;
    position:fixed;left:0;right:0;top:56px;bottom:0;
    background:#0A1420;padding:28px 24px;margin:0;
    overflow-y:auto;
  }
  body.nav-open .nav-links a{font-size:20px;font-weight:600;padding:14px 0;width:100%;border-bottom:1px solid rgba(255,255,255,.06)}
  body.nav-open .nav-links a.is-active::before{display:none}
}

/* ============ 页面通用 ============ */
.page-head{padding:22px 0 0}
.crumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:14px;color:var(--c-t3)}
.crumb a:hover{color:var(--c-brand)}
.crumb span.sep{color:#C6D2DE}

.section{padding:56px 0}
@media(min-width:768px){.section{padding:88px 0}}
.sec-head{max-width:760px;margin-bottom:32px}
.sec-eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:12px;letter-spacing:.14em;color:var(--c-brand);
  background:var(--c-brand-l);border-radius:999px;padding:6px 14px;margin-bottom:14px;
  font-weight:600;
}
.sec-head h2{font-size:23px;font-weight:600;margin-bottom:12px}
@media(min-width:768px){.sec-head h2{font-size:28px}}
.sec-head p{margin:0;color:var(--c-t2);font-size:16px}

/* ============ Hero ============ */
.hero{padding:26px 0 0}
.hero-inner{display:grid;gap:26px}
.hero h1{font-size:30px;font-weight:700;margin-bottom:16px;letter-spacing:0}
@media(min-width:768px){.hero h1{font-size:40px}}
.hero .lead{font-size:17px;color:var(--c-t2);max-width:720px;margin-bottom:22px}
.hero-tags{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:26px}
.tag{
  display:inline-flex;align-items:center;height:26px;padding:0 12px;
  border-radius:999px;background:var(--c-brand-l);color:var(--c-brand);
  font-size:12px;font-weight:600;letter-spacing:.04em;
}
.tag-warm{background:var(--c-cta);color:#FFFFFF}
.hero-visual{
  position:relative;border-radius:18px;overflow:hidden;
  height:210px;border:1px solid var(--c-line);
  box-shadow:var(--sh-card);
}
.hero-visual img{width:100%;height:100%;object-fit:cover}
.hero-visual::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(12,44,71,.05) 0%,rgba(12,44,71,.55) 100%);
}
.hero-caption{
  position:absolute;left:18px;right:18px;bottom:16px;z-index:2;
  display:flex;flex-wrap:wrap;align-items:center;gap:10px;
  color:#FFFFFF;font-size:14px;
}
.hero-caption .dot{width:6px;height:6px;border-radius:50%;background:var(--c-neon);box-shadow:0 0 10px rgba(47,227,208,.9)}
@media(min-width:768px){
  .hero-visual{height:270px;border-radius:20px}
}

/* ============ 筛选标签（静态外观） ============ */
.filter-bar{
  display:flex;gap:10px;overflow-x:auto;padding:6px 2px 14px;
  scrollbar-width:none;-ms-overflow-style:none;
  border-bottom:1px solid var(--c-line);
}
.filter-bar::-webkit-scrollbar{display:none}
.chip{
  flex:0 0 auto;display:inline-flex;align-items:center;
  height:36px;padding:0 18px;border-radius:999px;
  background:var(--c-card);border:1px solid var(--c-line);
  color:var(--c-t2);font-size:14px;font-weight:600;
  transition:all 200ms ease-out;
}
.chip:hover{border-color:#BFD6E8;color:var(--c-brand)}
.chip.is-on{
  background:var(--c-brand-d);border-color:var(--c-brand-d);color:#FFFFFF;
  box-shadow:0 0 0 1px rgba(47,227,208,.5),0 0 16px rgba(47,227,208,.22);
}
.filter-hint{font-size:13px;color:var(--c-t3);padding-top:12px}

/* ============ 卡片瀑布 ============ */
.masonry{columns:1;column-gap:24px;margin-top:28px}
@media(min-width:640px){.masonry{columns:2}}
@media(min-width:1024px){.masonry{columns:3}}
.q-card{
  break-inside:avoid;width:100%;margin:0 0 24px;
  background:var(--c-card);border:1px solid var(--c-line);
  border-radius:var(--r-card);box-shadow:var(--sh-card);
  overflow:hidden;
  transition:transform 220ms ease-out,box-shadow 220ms ease-out,border-color 220ms ease-out;
}
.q-card:hover{transform:translateY(-4px);box-shadow:var(--sh-hover);border-color:#CFE0EE}
.q-body{padding:22px}
.q-card h3{font-size:18px;margin:12px 0 10px;font-weight:600}
.q-card p{margin:0;font-size:15px;color:var(--c-t2);line-height:1.8}
.q-meta{
  display:flex;flex-wrap:wrap;align-items:center;gap:8px;
  margin-top:16px;padding-top:14px;border-top:1px dashed var(--c-line);
  font-size:13px;color:var(--c-t3);
}
.q-meta .sep{color:#D2DDE8}
.q-thumb{width:100%;aspect-ratio:16/9;object-fit:cover;display:block}
.q-steps{margin:14px 0 0;padding:0}
.q-steps li{
  position:relative;padding-left:22px;font-size:14px;color:var(--c-t2);
  margin-bottom:8px;line-height:1.75;
}
.q-steps li::before{
  content:"";position:absolute;left:6px;top:11px;
  width:6px;height:6px;border-radius:50%;background:var(--c-brand);
}
.q-steps li:nth-child(even)::before{background:var(--c-cta)}

/* ============ 处理顺序 ============ */
.flow-wrap{background:var(--c-card);border:1px solid var(--c-line);border-radius:var(--r-frag);box-shadow:var(--sh-card);padding:24px}
@media(min-width:768px){.flow-wrap{padding:36px}}
.flow-grid{display:grid;gap:18px;grid-template-columns:1fr}
@media(min-width:640px){.flow-grid{grid-template-columns:repeat(2,1fr)}}
@media(min-width:1024px){.flow-grid{grid-template-columns:repeat(4,1fr)}}
.flow-item{border-left:3px solid var(--c-brand-l);padding:4px 0 4px 16px}
.flow-item .num{font-size:22px;font-weight:700;color:var(--c-cta);line-height:1}
.flow-item h3{font-size:16px;margin:8px 0 6px}
.flow-item p{font-size:14px;margin:0;color:var(--c-t2)}

/* ============ 内链区块 ============ */
.link-grid{display:grid;gap:18px;grid-template-columns:1fr}
@media(min-width:640px){.link-grid{grid-template-columns:repeat(2,1fr)}}
@media(min-width:1024px){.link-grid{grid-template-columns:repeat(4,1fr)}}
.link-card{
  display:block;background:var(--c-card);border:1px solid var(--c-line);
  border-radius:var(--r-card);padding:20px;box-shadow:var(--sh-card);
  transition:transform 220ms ease-out,box-shadow 220ms ease-out,background 220ms ease-out;
}
.link-card:hover{transform:translateY(-4px);box-shadow:var(--sh-hover);background:#FBFDFF}
.link-card h3{font-size:16px;margin-bottom:8px}
.link-card p{font-size:14px;margin:0 0 12px;color:var(--c-t2)}
.link-card .more{font-size:13px;color:var(--c-brand);font-weight:600}
.link-card:hover .more{color:var(--c-cta)}

/* ============ FAQ ============ */
.faq{display:grid;gap:12px}
.faq-item{
  background:var(--c-card);border:1px solid var(--c-line);border-radius:14px;
  overflow:hidden;transition:box-shadow 220ms ease-out,border-color 220ms ease-out;
}
.faq-item:hover{box-shadow:var(--sh-card)}
.faq-item.is-open{border-color:#C3DAEA;box-shadow:var(--sh-card)}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;
  background:transparent;border:0;text-align:left;
  padding:18px 20px;font-size:16px;font-weight:600;color:var(--c-t1);line-height:1.6;
}
.faq-icon{
  flex:0 0 auto;position:relative;width:20px;height:20px;
}
.faq-icon::before,.faq-icon::after{
  content:"";position:absolute;background:var(--c-brand);border-radius:2px;
  transition:transform 240ms ease-out,background 240ms ease-out;
}
.faq-icon::before{left:0;top:9px;width:20px;height:2px}
.faq-icon::after{left:9px;top:0;width:2px;height:20px}
.faq-item.is-open .faq-icon::after{transform:rotate(90deg);opacity:0}
.faq-item.is-open .faq-icon::before{background:var(--c-cta)}
.faq-a{max-height:0;overflow:hidden;transition:max-height 280ms ease-out}
.faq-a-inner{padding:0 20px 20px;background:#FAFCFE;font-size:15px;color:var(--c-t2);line-height:1.85}
.faq-a-inner p{margin:0;padding-top:4px}

/* ============ CTA ============ */
.cta-band{
  background:linear-gradient(120deg,#0C2C47 0%,#1B5B8F 100%);
  border-radius:var(--r-frag);padding:30px 24px;
  display:flex;flex-direction:column;gap:22px;
  box-shadow:0 18px 40px rgba(12,44,71,.24);
  position:relative;overflow:hidden;
}
.cta-band::after{
  content:"";position:absolute;right:-60px;top:-60px;width:220px;height:220px;border-radius:50%;
  border:1px solid rgba(47,227,208,.22);
}
.cta-band h2{color:#FFFFFF;font-size:22px;margin-bottom:10px}
@media(min-width:768px){.cta-band h2{font-size:26px}}
.cta-band p{color:#C6D8E6;margin:0;font-size:15px;max-width:560px}
.cta-actions{display:flex;flex-wrap:wrap;gap:12px;position:relative;z-index:2}
@media(min-width:768px){
  .cta-band{flex-direction:row;align-items:center;justify-content:space-between;padding:38px 40px}
  .cta-band h2,.cta-band p{max-width:640px}
}

/* ============ 页脚 ============ */
.site-foot{
  background:var(--c-bg);border-top:1px solid var(--c-line);
  margin-top:56px;padding:48px 0 0;
}
.foot-grid{display:grid;gap:36px;grid-template-columns:1fr}
@media(min-width:768px){.foot-grid{grid-template-columns:1.4fr 1fr 1fr}}
.foot-brand .brand{margin-bottom:16px}
.foot-brand .brand-text strong{color:var(--c-t1)}
.foot-brand .brand-text em{color:var(--c-t3)}
.foot-brand .brand-mark{color:#FFFFFF;background:linear-gradient(135deg,#0C2C47,#1B5B8F)}
.foot-desc{font-size:14px;color:var(--c-t2);line-height:1.85;max-width:420px;margin:0}
.foot-col h3{font-size:15px;color:var(--c-t1);margin-bottom:14px;font-weight:600}
.foot-links{display:flex;flex-direction:column;gap:10px}
.foot-links a{font-size:14px;color:var(--c-t2);transition:color 200ms ease-out,transform 200ms ease-out}
.foot-links a:hover{color:var(--c-brand);transform:translateX(2px)}
.foot-col ul li{font-size:14px;color:var(--c-t2);margin-bottom:10px}
.foot-bottom{
  margin-top:36px;border-top:1px solid var(--c-line);
  padding:18px 0 26px;text-align:center;font-size:13px;color:var(--c-t3);
}

/* roulang page: category5 */
:root{
    --c-brand:#1B5B8F;
    --c-brand-d:#0C2C47;
    --c-brand-l:#E8F1F9;
    --c-neon:#2FE3D0;
    --c-cta:#FF7A45;
    --c-bg:#F6F9FC;
    --c-card:#FFFFFF;
    --c-line:#E3EBF3;
    --c-t1:#0F1C2E;
    --c-t2:#5A6B7D;
    --c-t3:#93A2B1;
    --c-nav:#0A1420;
    --r-card:16px;
    --r-frag:20px;
    --shadow-card:0 1px 2px rgba(15,40,70,.06),0 8px 24px rgba(15,40,70,.08);
    --shadow-hover:0 12px 32px rgba(15,40,70,.12);
  }
  *,*::before,*::after{box-sizing:border-box}
  html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
  body{
    margin:0;
    font-family:system-ui,"PingFang SC","Microsoft YaHei","Noto Sans SC",sans-serif;
    background:var(--c-bg);
    color:var(--c-t1);
    font-size:17px;
    line-height:1.88;
    font-variant-numeric:tabular-nums;
  }
  img{max-width:100%;display:block}
  a{color:inherit;text-decoration:none}
  button{font-family:inherit}
  h1,h2,h3,h4{margin:0;line-height:1.3;font-weight:700}
  h1{font-size:30px}
  h2{font-size:23px;font-weight:600}
  h3{font-size:18px;font-weight:600}
  p{margin:0 0 1.15em}
  p:last-child{margin-bottom:0}
  ul{margin:0;padding:0;list-style:none}
  @media (min-width:768px){
    body{font-size:17px}
    h1{font-size:40px}
    h2{font-size:28px}
    h3{font-size:20px}
  }
  .container{max-width:1200px;margin:0 auto;padding:0 20px;width:100%}
  @media (min-width:768px){.container{padding:0 32px}}
  .section{padding:64px 0}
  @media (min-width:768px){.section{padding:96px 0}}
  .section-head{max-width:760px;margin-bottom:36px}
  .section-head h2{margin:14px 0 12px}
  .section-head p{color:var(--c-t2);font-size:16px}
  .eyebrow{
    display:inline-flex;align-items:center;gap:8px;
    font-size:12px;letter-spacing:.04em;font-weight:600;
    color:var(--c-brand);background:var(--c-brand-l);
    padding:6px 14px;border-radius:999px;
  }
  .eyebrow::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--c-neon)}

  /* ---------- 导航 ---------- */
  .site-nav{position:sticky;top:0;z-index:50;background:var(--c-nav)}
  .site-nav::after{
    content:"";display:block;height:1px;
    background:linear-gradient(90deg,rgba(47,227,208,.85),rgba(47,227,208,.25) 45%,rgba(47,227,208,0));
  }
  .nav-inner{
    max-width:1200px;margin:0 auto;padding:0 20px;height:64px;
    display:flex;align-items:center;justify-content:space-between;gap:20px;
  }
  @media (min-width:768px){.nav-inner{padding:0 32px}}
  .brand{display:flex;align-items:center;gap:10px;flex:none}
  .brand-mark{
    width:36px;height:36px;border-radius:10px;flex:none;
    display:flex;align-items:center;justify-content:center;
    background:linear-gradient(135deg,#2FE3D0,#1B5B8F);
    color:#04121c;font-weight:800;font-size:17px;letter-spacing:.02em;
  }
  .brand-text strong{display:block;color:#fff;font-size:15px;line-height:1.25;letter-spacing:.02em}
  .brand-text em{display:block;font-style:normal;font-size:11px;line-height:1.4;color:#7C93A8;letter-spacing:.04em}
  .nav-links{display:flex;align-items:center;gap:2px}
  .nav-links a{
    position:relative;display:inline-block;padding:8px 11px;border-radius:8px;
    font-size:15px;color:#C9D6E2;transition:color .2s ease-out;
  }
  .nav-links a::after{
    content:"";position:absolute;left:11px;right:11px;bottom:2px;height:2px;
    border-radius:2px;background:var(--c-neon);
    transform:scaleX(0);transform-origin:left;
    transition:transform .22s ease-out;
  }
  .nav-links a:hover{color:#fff}
  .nav-links a:hover::after{transform:scaleX(1)}
  .nav-links a.is-active{color:var(--c-neon);text-shadow:0 0 12px rgba(47,227,208,.45)}
  .nav-links a.is-active::after{transform:scaleX(1);box-shadow:0 0 10px rgba(47,227,208,.6)}
  .nav-links a.is-active::before{
    content:"";position:absolute;left:2px;top:50%;transform:translateY(-50%);
    width:3px;height:3px;border-radius:50%;background:var(--c-neon);
    box-shadow:0 0 8px rgba(47,227,208,.9);
  }
  .nav-actions{display:flex;align-items:center;gap:12px;flex:none}
  .btn-nav{
    display:inline-flex;align-items:center;justify-content:center;
    background:#E8F1F9;color:#0C2C47;border:1px solid transparent;
    border-radius:999px;padding:9px 18px;font-size:14px;font-weight:600;
    transition:box-shadow .2s ease-out,transform .2s ease-out;
  }
  .btn-nav:hover{box-shadow:0 0 0 1.5px var(--c-neon);transform:translateY(-1px)}
  .btn-nav:focus-visible{outline:2px solid var(--c-neon);outline-offset:2px}
  .nav-toggle{
    display:none;width:42px;height:42px;border-radius:12px;
    border:1px solid rgba(47,227,208,.35);background:transparent;
    padding:0;cursor:pointer;flex-direction:column;justify-content:center;align-items:center;gap:5px;
  }
  .nav-toggle span{display:block;width:20px;height:2px;border-radius:2px;background:var(--c-neon);transition:transform .2s ease-out,opacity .2s}
  .nav-toggle:focus-visible{outline:2px solid var(--c-neon);outline-offset:2px}
  @media (max-width:1023px){
    .nav-links{display:none}
    .nav-actions .btn-nav{display:none}
    .nav-toggle{display:flex}
  }
  .drawer{
    position:fixed;inset:0;z-index:60;background:rgba(6,14,22,.97);
    display:flex;flex-direction:column;gap:6px;padding:88px 28px 32px;
    transform:translateX(100%);visibility:hidden;
    transition:transform .28s ease-out,visibility .28s;
  }
  .drawer.is-open{transform:translateX(0);visibility:visible}
  .drawer a.drawer-link{
    color:#D6E2EE;font-size:20px;font-weight:600;padding:14px 0;
    border-bottom:1px solid rgba(255,255,255,.08);
  }
  .drawer a.drawer-link.is-active{color:var(--c-neon)}
  .drawer .btn-nav{margin-top:24px;align-self:flex-start;padding:12px 24px;font-size:15px}
  .drawer-close{
    position:absolute;top:22px;right:22px;width:42px;height:42px;border-radius:12px;
    background:transparent;border:1px solid rgba(47,227,208,.35);color:var(--c-neon);
    font-size:20px;cursor:pointer;line-height:1;
  }

  /* ---------- 面包屑 ---------- */
  .crumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:14px;color:var(--c-t3)}
  .crumb a:hover{color:var(--c-brand)}
  .crumb span.sep{color:rgba(147,162,177,.7)}
  .crumb-light{color:rgba(214,226,238,.85)}
  .crumb-light a:hover{color:#fff}

  /* ---------- Hero ---------- */
  .cat-hero{position:relative;background:#08131F;overflow:hidden}
  .cat-hero-img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;opacity:.5}
  .cat-hero-mask{
    position:absolute;inset:0;
    background:linear-gradient(180deg,rgba(8,20,32,.5),rgba(8,20,32,.92));
  }
  .cat-hero-inner{
    position:relative;z-index:2;padding-top:40px;padding-bottom:56px;
    display:flex;flex-direction:column;justify-content:flex-end;min-height:400px;
  }
  @media (min-width:768px){.cat-hero-inner{min-height:480px;padding-top:56px;padding-bottom:72px}}
  .cat-hero h1{color:#fff;margin:18px 0 14px;max-width:900px}
  .cat-hero-sub{color:#C9D6E2;font-size:16px;max-width:720px;margin-bottom:26px}
  .hero-cta{display:flex;flex-wrap:wrap;gap:14px}

  /* ---------- 按钮 ---------- */
  .btn{
    display:inline-flex;align-items:center;justify-content:center;gap:8px;
    font-size:16px;font-weight:600;padding:13px 26px;border-radius:999px;
    border:1.5px solid transparent;cursor:pointer;
    transition:transform .22s ease-out,box-shadow .22s ease-out,background .22s ease-out,color .22s ease-out;
  }
  .btn-primary{background:var(--c-cta);color:#fff;box-shadow:0 8px 20px rgba(255,122,69,.28)}
  .btn-primary:hover{background:#F26A33;transform:translateY(-1px);box-shadow:0 12px 26px rgba(255,122,69,.36)}
  .btn-primary:active{transform:translateY(1px);box-shadow:0 6px 14px rgba(255,122,69,.3)}
  .btn-ghost{background:transparent;color:#fff;border-color:rgba(255,255,255,.55)}
  .btn-ghost:hover{background:rgba(255,255,255,.12)}
  .btn-outline{background:transparent;color:var(--c-brand);border-color:var(--c-brand)}
  .btn-outline:hover{background:var(--c-brand-l)}
  .btn:focus-visible{outline:2px solid var(--c-neon);outline-offset:2px}

  /* ---------- 关键点条 ---------- */
  .keybar{
    display:grid;gap:1px;background:var(--c-line);
    border:1px solid var(--c-line);border-radius:var(--r-card);overflow:hidden;
    margin-top:-1px;
  }
  @media (min-width:768px){.keybar{grid-template-columns:repeat(3,1fr)}}
  .keybar-item{background:var(--c-card);padding:22px 24px}
  .keybar-item h3{font-size:15px;color:var(--c-brand);letter-spacing:.04em;margin-bottom:6px}
  .keybar-item p{font-size:15px;color:var(--c-t2);margin:0}

  /* ---------- 浅蓝卡片 ---------- */
  .soft-grid{display:grid;gap:20px}
  @media (min-width:640px){.soft-grid{grid-template-columns:repeat(2,1fr)}}
  @media (min-width:1024px){.soft-grid{grid-template-columns:repeat(4,1fr)}}
  .soft-card{
    background:var(--c-brand-l);border:1px solid #D5E6F4;border-radius:var(--r-card);
    padding:24px;transition:transform .22s ease-out,box-shadow .22s ease-out;
  }
  .soft-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover)}
  .soft-card .num{
    display:inline-flex;align-items:center;justify-content:center;
    width:34px;height:34px;border-radius:10px;background:#fff;color:var(--c-brand);
    font-weight:700;font-size:15px;margin-bottom:14px;border:1px solid #D5E6F4;
  }
  .soft-card h3{margin-bottom:8px;color:var(--c-brand-d)}
  .soft-card p{font-size:15px;color:var(--c-t2);line-height:1.85;margin:0}

  /* ---------- 图文区 ---------- */
  .split{display:grid;gap:32px;align-items:center}
  @media (min-width:900px){.split{grid-template-columns:1.05fr .95fr;gap:48px}}
  .split-img{border-radius:var(--r-frag);overflow:hidden;box-shadow:var(--shadow-card)}
  .split-img img{width:100%;height:100%;object-fit:cover;aspect-ratio:4/3}
  .plain-list li{
    position:relative;padding-left:26px;margin-bottom:16px;color:var(--c-t2);font-size:16px;
  }
  .plain-list li strong{color:var(--c-t1);display:block;font-weight:600;margin-bottom:2px}
  .plain-list li::before{
    content:"";position:absolute;left:0;top:11px;width:8px;height:8px;border-radius:50%;
    background:var(--c-cta);
  }
  .plain-list li:nth-child(even)::before{background:var(--c-brand)}

  /* ---------- 编号清单 ---------- */
  .rank-list{border-top:1px solid var(--c-line)}
  .rank-item{
    display:flex;gap:20px;align-items:flex-start;padding:24px 0;
    border-bottom:1px solid var(--c-line);
    transition:background .2s ease-out,padding-left .2s ease-out;
  }
  .rank-item:hover{background:var(--c-brand-l);padding-left:14px}
  .rank-num{
    flex:none;font-size:34px;font-weight:700;line-height:1;color:transparent;
    -webkit-text-stroke:1.4px var(--c-brand);width:56px;
  }
  @media (min-width:768px){.rank-num{font-size:42px;width:70px}}
  .rank-body h3{margin-bottom:6px}
  .rank-body p{color:var(--c-t2);font-size:16px;margin:0}

  /* ---------- FAQ ---------- */
  .faq-list{
    border:1px solid var(--c-line);border-radius:var(--r-card);
    background:var(--c-card);box-shadow:var(--shadow-card);overflow:hidden;
  }
  .faq-item + .faq-item{border-top:1px solid var(--c-line)}
  .faq-q{
    width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;
    padding:20px 22px;background:transparent;border:0;cursor:pointer;text-align:left;
    font-size:17px;font-weight:600;color:var(--c-t1);
    transition:background .2s ease-out;
  }
  .faq-q:hover{background:var(--c-brand-l)}
  .faq-q:focus-visible{outline:2px solid var(--c-neon);outline-offset:-2px}
  .faq-icon{position:relative;flex:none;width:18px;height:18px}
  .faq-icon::before,.faq-icon::after{
    content:"";position:absolute;background:var(--c-brand);border-radius:2px;
    transition:transform .22s ease-out;
  }
  .faq-icon::before{left:0;top:8px;width:18px;height:2px}
  .faq-icon::after{left:8px;top:0;width:2px;height:18px}
  .faq-item.is-open .faq-icon::after{transform:scaleY(0)}
  .faq-a{max-height:0;overflow:hidden;background:#F8FBFE;transition:max-height .28s ease-out}
  .faq-item.is-open .faq-a{max-height:460px}
  .faq-a-inner{padding:4px 22px 22px;color:var(--c-t2);font-size:16px}

  /* ---------- 相关栏目卡 ---------- */
  .link-grid{display:grid;gap:22px}
  @media (min-width:640px){.link-grid{grid-template-columns:repeat(2,1fr)}}
  @media (min-width:1024px){.link-grid{grid-template-columns:repeat(4,1fr)}}
  .link-card{
    display:flex;flex-direction:column;background:var(--c-card);
    border:1px solid var(--c-line);border-radius:var(--r-card);overflow:hidden;
    box-shadow:var(--shadow-card);
    transition:transform .22s ease-out,box-shadow .22s ease-out;
  }
  .link-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover)}
  .link-card img{width:100%;aspect-ratio:16/10;object-fit:cover}
  .link-card-body{padding:20px}
  .link-card-body h3{font-size:17px;margin-bottom:8px}
  .link-card-body p{font-size:14px;color:var(--c-t2);margin:0 0 12px;line-height:1.8}
  .link-more{font-size:14px;font-weight:600;color:var(--c-brand)}
  .link-card:hover .link-more{color:var(--c-cta)}

  /* ---------- CTA 条 ---------- */
  .cta-band{background:var(--c-brand-l);border-top:1px solid #D5E6F4;border-bottom:1px solid #D5E6F4}
  .cta-inner{
    padding:48px 0;display:grid;gap:26px;align-items:center;
  }
  @media (min-width:900px){.cta-inner{grid-template-columns:1.2fr auto;padding:56px 0}}
  .cta-inner h2{margin-bottom:10px}
  .cta-inner p{color:var(--c-t2);font-size:16px;max-width:640px;margin:0}
  .cta-actions{display:flex;flex-wrap:wrap;gap:14px}

  /* ---------- 页脚 ---------- */
  .site-foot{background:var(--c-bg);border-top:1px solid var(--c-line);padding:56px 0 0;margin-top:0}
  .foot-grid{display:grid;gap:40px}
  @media (min-width:900px){.foot-grid{grid-template-columns:1.4fr 1fr 1fr;gap:40px}}
  .foot-brand .brand{margin-bottom:16px}
  .foot-brand .brand-text strong{color:var(--c-t1)}
  .foot-brand .brand-text em{color:var(--c-t3)}
  .foot-desc{font-size:15px;color:var(--c-t2);max-width:460px;margin:0}
  .foot-col h3{font-size:15px;color:var(--c-t1);margin-bottom:16px;letter-spacing:.04em}
  .foot-links{display:flex;flex-direction:column;gap:10px}
  .foot-links a{font-size:15px;color:var(--c-t2);transition:color .2s ease-out,transform .2s ease-out;display:inline-block}
  .foot-links a:hover{color:var(--c-brand);transform:translateX(2px)}
  .foot-col ul li{font-size:15px;color:var(--c-t2);margin-bottom:10px}
  .foot-bottom{
    margin-top:44px;padding:20px 0;border-top:1px solid var(--c-line);
    text-align:center;font-size:13px;color:var(--c-t3);
  }