/* roulang page: index */
:root{
  --brand:#F2540B;
  --brand-deep:#C93F05;
  --brand-tint:#FFF1E8;
  --cyan:#0FA3A0;
  --cyan-tint:#E6F7F5;
  --lemon:#FFC53D;
  --ink:#17121F;
  --text:#3A3442;
  --muted:#6B6478;
  --line:rgba(23,18,31,.08);
  --warm:#F7F4F1;
  --white:#FFFFFF;
  --grad-brand:linear-gradient(120deg,#F2540B 0%,#FF7A2F 48%,#FFC53D 100%);
  --grad-dark:linear-gradient(135deg,#17121F 0%,#2B1D33 62%,#3A1F2B 100%);
  --r-lg:24px;
  --r-md:18px;
  --r-img:16px;
  --r-input:12px;
  --r-pill:999px;
  --sh-sm:0 2px 8px rgba(23,18,31,.06);
  --sh-md:0 14px 34px rgba(23,18,31,.09);
  --sh-lg:0 26px 64px rgba(242,84,11,.16);
}
*,*::before,*::after{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  margin:0;
  font-family:system-ui,-apple-system,"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Noto Sans SC",sans-serif;
  font-size:16px;
  line-height:1.85;
  color:var(--text);
  background:var(--white);
  -webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4{margin:0 0 16px;color:var(--ink);line-height:1.32;letter-spacing:0;font-weight:700;}
h1{font-size:42px;}
h2{font-size:30px;}
h3{font-size:21px;}
h4{font-size:17px;}
p{margin:0 0 16px;}
a{color:var(--brand);text-decoration:none;transition:color .22s ease,opacity .22s ease;}
a:hover{color:var(--brand-deep);}
img{max-width:100%;display:block;border-style:none;}
ul{margin:0;padding:0;list-style:none;}
button{font-family:inherit;}
:focus-visible{outline:3px solid var(--brand);outline-offset:2px;border-radius:6px;}
.shell{width:100%;max-width:1200px;margin:0 auto;padding:0 24px;}
section{position:relative;}
.sec{padding:96px 0;}
.sec--tight{padding:88px 0;}
.sec--warm{background:var(--warm);}
.sec-head{max-width:760px;margin-bottom:48px;}
.sec-head h2{margin-bottom:14px;}
.sec-head p{color:var(--muted);font-size:16px;margin:0;}
.kicker{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;font-weight:600;letter-spacing:.04em;
  color:var(--brand);background:var(--brand-tint);
  padding:6px 14px;border-radius:var(--r-pill);margin-bottom:18px;
}
.kicker::before{content:"";width:16px;height:3px;border-radius:3px;background:var(--brand);}
.text-muted-2{color:var(--muted);}

/* 导航 */
.site-header{position:sticky;top:16px;z-index:1040;padding:0 24px;transition:top .22s ease;}
.nav-shell{
  max-width:1080px;margin:0 auto;
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  height:66px;padding:0 12px 0 20px;
  background:rgba(255,255,255,.88);
  -webkit-backdrop-filter:blur(14px);
  backdrop-filter:blur(14px);
  border:1px solid var(--line);
  border-radius:var(--r-pill);
  box-shadow:var(--sh-md);
  transition:height .22s ease,padding .22s ease;
}
.site-header.is-scrolled .nav-shell{height:56px;padding:0 10px 0 16px;}
.brand{display:flex;align-items:center;gap:10px;flex-shrink:0;}
.brand__mark{
  width:34px;height:34px;border-radius:12px;
  background:var(--grad-brand);color:#fff;
  display:flex;align-items:center;justify-content:center;
  font-size:16px;font-weight:700;line-height:1;
}
.brand__text{font-size:16px;font-weight:700;color:var(--ink);letter-spacing:-.01em;white-space:nowrap;}
.nav-main{display:flex;align-items:center;gap:4px;}
.nav-link{
  position:relative;display:inline-block;
  padding:8px 14px;border-radius:var(--r-pill);
  font-size:15px;color:var(--text);font-weight:500;white-space:nowrap;
}
.nav-link:hover{color:var(--brand);background:var(--brand-tint);}
.nav-link.is-active{color:var(--brand);background:var(--brand-tint);font-weight:600;}
.nav-link.is-active::after{
  content:"";position:absolute;left:50%;bottom:3px;transform:translateX(-50%);
  width:18px;height:3px;border-radius:3px;background:var(--brand);
}
.nav-actions{display:flex;align-items:center;gap:10px;}
.nav-toggle{
  display:none;width:42px;height:42px;border:1px solid var(--line);
  background:#fff;border-radius:14px;padding:0;
  flex-direction:column;align-items:center;justify-content:center;gap:4px;cursor:pointer;
}
.nav-toggle span{display:block;width:18px;height:2px;border-radius:2px;background:var(--ink);}
.nav-drawer{
  display:none;max-width:1080px;margin:10px auto 0;
  background:#fff;border:1px solid var(--line);border-radius:20px;
  box-shadow:var(--sh-md);padding:12px;
}
.nav-drawer.is-open{display:block;}
.nav-drawer a{display:block;padding:12px 14px;border-radius:14px;font-size:15px;color:var(--text);font-weight:500;}
.nav-drawer a:hover,.nav-drawer a.is-active{background:var(--brand-tint);color:var(--brand);}
.nav-drawer a.is-active{font-weight:600;}

/* 按钮 */
.btn-brand{
  display:inline-flex;align-items:center;gap:8px;
  background:var(--grad-brand);color:#fff;border:none;
  border-radius:var(--r-pill);padding:13px 26px;
  font-size:15px;font-weight:600;line-height:1.2;cursor:pointer;
  box-shadow:var(--sh-md);transition:background .22s ease,transform .22s ease,box-shadow .22s ease;
}
.btn-brand:hover{background:var(--brand-deep);color:#fff;transform:translateY(-2px);box-shadow:var(--sh-lg);}
.btn-brand i{font-style:normal;transition:transform .22s ease;}
.btn-brand:hover i{transform:translateX(4px);}
.btn-sm{padding:9px 18px;font-size:14px;}
.btn-ghost{
  display:inline-flex;align-items:center;gap:8px;
  background:transparent;color:#fff;border:1px solid rgba(255,255,255,.42);
  border-radius:var(--r-pill);padding:12px 24px;
  font-size:15px;font-weight:500;transition:background .22s ease,border-color .22s ease,transform .22s ease;
}
.btn-ghost:hover{background:rgba(255,255,255,.12);border-color:rgba(255,255,255,.8);color:#fff;transform:translateY(-2px);}
.btn-outline-brand{
  display:inline-flex;align-items:center;gap:8px;
  background:#fff;color:var(--brand);border:1px solid rgba(242,84,11,.34);
  border-radius:var(--r-pill);padding:12px 24px;font-size:15px;font-weight:600;
  transition:background .22s ease,transform .22s ease,border-color .22s ease;
}
.btn-outline-brand:hover{background:var(--brand-tint);border-color:var(--brand);transform:translateY(-2px);color:var(--brand-deep);}

/* Hero */
.hero{position:relative;overflow:hidden;background:var(--ink);padding:150px 0 104px;color:#fff;}
.hero__bg{position:absolute;inset:0;background:url('/assets/images/backpic/back-1.webp') center/cover no-repeat;opacity:.44;}
.hero__mask{position:absolute;inset:0;background:linear-gradient(135deg,rgba(23,18,31,.95) 0%,rgba(43,29,51,.92) 58%,rgba(58,31,43,.88) 100%);}
.hero__glow{
  position:absolute;top:-240px;right:-180px;width:660px;height:660px;
  background:radial-gradient(circle,rgba(242,84,11,.45) 0%,rgba(242,84,11,0) 68%);
}
.hero .shell{position:relative;z-index:3;}
.hero h1{color:#fff;font-size:42px;margin-bottom:20px;}
.hero h1 em{
  font-style:normal;position:relative;display:inline-block;
}
.hero h1 em::after{
  content:"";position:absolute;left:0;right:0;bottom:2px;height:6px;border-radius:6px;
  background:var(--grad-brand);opacity:.9;
}
.hero__label{
  display:inline-flex;align-items:center;gap:8px;
  background:rgba(255,255,255,.12);border:1px solid rgba(255,255,255,.24);
  color:#FFE6D6;font-size:13px;font-weight:600;
  padding:7px 16px;border-radius:var(--r-pill);margin-bottom:22px;
}
.hero__sub{color:rgba(255,255,255,.82);font-size:17px;max-width:600px;margin-bottom:30px;}
.hero__btns{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:26px;}
.hero__trust{display:flex;flex-wrap:wrap;gap:10px;font-size:14px;color:rgba(255,255,255,.7);}
.hero__trust span{display:inline-flex;align-items:center;gap:10px;}
.hero__trust span:not(:last-child)::after{content:"·";color:rgba(255,255,255,.4);}

.badge-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:16px;}
.stat-card{
  position:relative;background:#fff;border:1px solid rgba(15,163,160,.22);
  border-radius:var(--r-md);padding:22px 20px 26px;
  box-shadow:var(--sh-md);transition:transform .22s ease,box-shadow .22s ease;
  overflow:hidden;
}
.stat-card:hover{transform:translateY(-2px);box-shadow:var(--sh-lg);}
.stat-card__num{
  font-size:34px;line-height:1.1;font-weight:700;color:var(--ink);
  font-variant-numeric:tabular-nums;letter-spacing:-.02em;
}
.stat-card__num small{font-size:15px;font-weight:600;color:var(--cyan);margin-left:4px;}
.stat-card__label{font-size:14px;color:var(--muted);margin-top:6px;}
.stat-card::after{content:"";position:absolute;left:0;right:0;bottom:0;height:6px;background:var(--lemon);}

/* 痛点 */
.pain-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);
  padding:30px 28px;box-shadow:var(--sh-sm);
  transition:transform .22s ease,box-shadow .22s ease;
}
.pain-card:hover{transform:translateY(-2px);box-shadow:var(--sh-md);}
.pain-card__no{
  display:inline-flex;align-items:center;justify-content:center;
  width:40px;height:40px;border-radius:14px;background:var(--brand-tint);
  color:var(--brand);font-weight:700;font-size:16px;margin-bottom:16px;
  font-variant-numeric:tabular-nums;
}
.pain-card h3{font-size:19px;margin-bottom:10px;}
.pain-card p{color:var(--muted);font-size:15px;margin:0;}
.pain-lift{margin-top:-24px;}
.pain-card--accent{background:var(--grad-dark);border-color:transparent;}
.pain-card--accent h3{color:#fff;}
.pain-card--accent p{color:rgba(255,255,255,.78);}
.pain-card--accent .pain-card__no{background:rgba(255,255,255,.14);color:var(--lemon);}

/* 解决方案 */
.solve-row{align-items:center;margin-bottom:64px;}
.solve-row:last-child{margin-bottom:0;}
.solve-row h3{font-size:22px;margin-bottom:16px;}
.solve-row p{color:var(--muted);font-size:15.5px;}
.solve-media{
  position:relative;border-radius:var(--r-img);overflow:hidden;
  aspect-ratio:16/9;background:var(--warm);box-shadow:var(--sh-md);
}
.solve-media img{width:100%;height:100%;object-fit:cover;transition:transform .4s ease;}
.solve-media::after{
  content:"";position:absolute;inset:0;background:rgba(242,84,11,0);transition:background .3s ease;
}
.solve-media:hover img{transform:scale(1.03);}
.solve-media:hover::after{background:rgba(242,84,11,.08);}
.inline-link{
  display:inline-flex;align-items:center;gap:8px;
  font-size:15px;font-weight:600;color:var(--brand);margin-top:4px;
}
.inline-link i{font-style:normal;transition:transform .22s ease;}
.inline-link:hover i{transform:translateX(4px);}

/* 成果数据 */
.result-title{font-size:26px;margin-bottom:12px;}
.result-note{color:rgba(255,255,255,.78);}
.result-wrap{background:var(--grad-dark);border-radius:var(--r-lg);padding:54px 48px;color:#fff;position:relative;overflow:hidden;box-shadow:var(--sh-md);}
.result-wrap::after{content:"";position:absolute;top:-160px;left:-120px;width:420px;height:420px;background:radial-gradient(circle,rgba(242,84,11,.3) 0%,rgba(242,84,11,0) 70%);}
.result-wrap .shell-in{position:relative;z-index:2;}
.meter{margin-bottom:26px;}
.meter:last-of-type{margin-bottom:0;}
.meter__head{display:flex;justify-content:space-between;align-items:baseline;font-size:15px;margin-bottom:10px;color:rgba(255,255,255,.86);}
.meter__head b{font-size:18px;color:#fff;font-variant-numeric:tabular-nums;}
.meter__track{height:8px;border-radius:var(--r-pill);background:rgba(255,255,255,.16);overflow:hidden;}
.meter__fill{height:100%;border-radius:var(--r-pill);background:var(--grad-brand);}
.metric-row{display:flex;flex-wrap:wrap;gap:12px;margin-top:34px;}
.metric-pill{
  display:inline-flex;align-items:center;gap:8px;
  background:rgba(255,255,255,.1);border:1px solid rgba(255,255,255,.18);
  color:#fff;font-size:14px;padding:9px 18px;border-radius:var(--r-pill);
}
.metric-pill::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--lemon);}

/* 证言 */
.quote-scroll{
  display:flex;gap:20px;overflow-x:auto;padding:6px 4px 24px;
  scroll-snap-type:x mandatory;-webkit-overflow-scrolling:touch;
  scrollbar-width:none;
}
.quote-scroll::-webkit-scrollbar{display:none;}
.quote-card{
  flex:0 0 360px;scroll-snap-align:start;
  background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);
  padding:28px 26px;box-shadow:var(--sh-sm);
  transition:transform .22s ease,box-shadow .22s ease;
}
.quote-card:hover{transform:translateY(-2px);box-shadow:var(--sh-md);}
.quote-card__avatar{
  width:48px;height:48px;border-radius:50%;overflow:hidden;margin-bottom:16px;
  border:2px solid var(--cyan-tint);
}
.quote-card__avatar img{width:100%;height:100%;object-fit:cover;}
.quote-card__name{font-size:15px;font-weight:700;color:var(--ink);}
.quote-card__role{font-size:13px;color:var(--muted);margin-bottom:14px;}
.quote-card p{font-size:15px;color:var(--text);margin-bottom:14px;}
.quote-card__stars{color:var(--lemon);font-size:13px;letter-spacing:2px;}

/* 资讯列表 */
.news-head{display:flex;flex-wrap:wrap;align-items:flex-end;justify-content:space-between;gap:16px;margin-bottom:36px;}
.news-head h2{margin-bottom:8px;}
.news-card{
  height:100%;display:flex;flex-direction:column;
  background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);
  overflow:hidden;box-shadow:var(--sh-sm);
  transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease;
}
.news-card:hover{transform:translateY(-2px);box-shadow:var(--sh-md);border-color:rgba(242,84,11,.28);}
.news-card__cover{display:block;position:relative;aspect-ratio:4/3;overflow:hidden;background:var(--warm);}
.news-card__cover img{width:100%;height:100%;object-fit:cover;transition:transform .4s ease;}
.news-card__cover::after{content:"";position:absolute;inset:0;background:rgba(242,84,11,0);transition:background .3s ease;}
.news-card:hover .news-card__cover img{transform:scale(1.03);}
.news-card:hover .news-card__cover::after{background:rgba(242,84,11,.08);}
.news-card__body{padding:22px 22px 20px;display:flex;flex-direction:column;flex:1;}
.tag{
  display:inline-block;font-size:13px;font-weight:600;
  padding:4px 12px;border-radius:var(--r-pill);margin-bottom:12px;align-self:flex-start;
}
.tag--cyan{background:var(--cyan-tint);color:var(--cyan);}
.news-card__title{font-size:18px;margin-bottom:10px;line-height:1.45;}
.news-card__title a{color:var(--ink);}
.news-card__title a:hover{color:var(--brand);}
.news-card__desc{font-size:14.5px;color:var(--muted);margin-bottom:18px;flex:1;
  display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden;}
.news-card__meta{
  display:flex;align-items:center;justify-content:space-between;
  font-size:13px;color:var(--muted);border-top:1px solid var(--line);padding-top:14px;
}
.news-card__meta .more{display:inline-flex;align-items:center;gap:6px;font-weight:600;}
.news-card__meta .more i{font-style:normal;transition:transform .22s ease;}
.news-card__meta .more:hover i{transform:translateX(4px);}
.news-empty{
  text-align:center;padding:64px 24px;background:#fff;
  border:1px dashed rgba(23,18,31,.16);border-radius:var(--r-lg);
}
.news-empty__icon{
  width:64px;height:64px;border-radius:20px;background:var(--cyan-tint);
  color:var(--cyan);display:flex;align-items:center;justify-content:center;
  font-size:26px;margin:0 auto 18px;font-weight:700;
}
.news-empty p{color:var(--muted);margin-bottom:18px;}

/* FAQ */
.faq-acc .accordion-item{
  border:1px solid var(--line);border-radius:var(--r-md)!important;
  margin-bottom:14px;overflow:hidden;background:#fff;box-shadow:var(--sh-sm);
}
.faq-acc .accordion-button{
  background:#fff;color:var(--ink);font-weight:600;font-size:16px;
  padding:20px 22px;box-shadow:none!important;line-height:1.6;
}
.faq-acc .accordion-button:not(.collapsed){color:var(--brand);background:var(--brand-tint);}
.faq-acc .accordion-button::after{
  content:"+";background-image:none;width:26px;height:26px;flex:0 0 26px;
  display:flex;align-items:center;justify-content:center;
  border-radius:50%;background-color:var(--brand-tint);color:var(--brand);
  font-size:17px;font-weight:700;line-height:1;transform:none;
}
.faq-acc .accordion-button:not(.collapsed)::after{
  content:"−";background-color:var(--brand);color:#fff;transform:none;
}
.faq-acc .accordion-body{
  padding:4px 22px 22px 20px;font-size:15px;color:var(--muted);
  border-left:3px solid var(--brand);margin-left:22px;padding-left:20px;
}

/* CTA 收尾 */
.cta-band{
  position:relative;overflow:hidden;background:var(--grad-dark);
  border-radius:var(--r-lg);padding:52px 48px;color:#fff;box-shadow:var(--sh-md);
}
.cta-band::after{
  content:"";position:absolute;top:-140px;right:-100px;width:420px;height:420px;
  background:radial-gradient(circle,rgba(242,84,11,.42) 0%,rgba(242,84,11,0) 70%);
}
.cta-band__inner{position:relative;z-index:2;display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:24px;}
.cta-band h2{color:#fff;font-size:24px;margin-bottom:8px;}
.cta-band p{color:rgba(255,255,255,.78);margin:0;font-size:15px;}

/* 页脚 */
.site-footer{background:var(--ink);color:rgba(255,255,255,.72);padding:64px 0 26px;margin-top:0;}
.site-footer::before{content:"";display:block;height:1px;background:var(--grad-brand);margin:-64px 0 64px;}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:16px;}
.footer-brand .brand__mark{background:var(--grad-brand);}
.footer-brand span{color:#fff;font-weight:700;font-size:16px;}
.footer-about{font-size:14px;color:rgba(255,255,255,.64);max-width:300px;line-height:1.8;}
.site-footer h4{color:#fff;font-size:15px;margin-bottom:18px;}
.footer-links li{margin-bottom:10px;}
.footer-links a{color:rgba(255,255,255,.68);font-size:14px;}
.footer-links a:hover{color:var(--lemon);}
.footer-meta{font-size:14px;color:rgba(255,255,255,.64);line-height:2;}
.footer-bottom{
  margin-top:44px;padding-top:20px;border-top:1px solid rgba(255,255,255,.12);
  display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;
  font-size:13px;color:rgba(255,255,255,.5);
}

@media (max-width:1199.98px){
  h1,.hero h1{font-size:36px;}
}
@media (max-width:991.98px){
  .sec,.sec--tight{padding:64px 0;}
  .nav-main{display:none;}
  .nav-toggle{display:flex;}
  .nav-cta{display:none;}
  .pain-lift{margin-top:0;}
  .result-wrap{padding:40px 28px;}
  .cta-band{padding:40px 28px;}
}
@media (max-width:767.98px){
  .sec,.sec--tight{padding:56px 0;}
  .hero{padding:126px 0 64px;}
  h1,.hero h1{font-size:28px;}
  h2{font-size:23px;}
  h3{font-size:18px;}
  h4{font-size:16px;}
  body{font-size:15.5px;}
  .pain-card,.news-card,.quote-card{border-radius:16px;}
  .quote-card{flex:0 0 280px;}
  .hero__btns .btn-brand,.hero__btns .btn-ghost{width:100%;justify-content:center;}
  .badge-grid{gap:12px;}
  .stat-card__num{font-size:28px;}
  .cta-band__inner{flex-direction:column;align-items:flex-start;}
  .cta-band .btn-brand{width:100%;justify-content:center;}
  .site-footer{padding:48px 0 22px;}
  .site-footer::before{margin:-48px 0 48px;}
  .footer-bottom{flex-direction:column;}
}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{transition:none!important;animation:none!important;}
  html{scroll-behavior:auto;}
}

/* roulang page: article */
:root{
  --brand:#F2540B;
  --brand-dark:#C93F05;
  --brand-soft:#FFF1E8;
  --teal:#0FA3A0;
  --teal-deep:#0B7C7A;
  --teal-soft:#E6F7F5;
  --yellow:#FFC53D;
  --ink:#17121F;
  --text:#3A3442;
  --muted:#6B6478;
  --line:rgba(23,18,31,.08);
  --warm:#F7F4F1;
  --white:#FFFFFF;
  --grad:linear-gradient(120deg,#F2540B 0%,#FF7A2F 48%,#FFC53D 100%);
  --grad-dark:linear-gradient(135deg,#17121F 0%,#2B1D33 62%,#3A1F2B 100%);
  --r-lg:24px;
  --r-md:18px;
  --r-img:16px;
  --r-input:12px;
  --sh-sm:0 2px 8px rgba(23,18,31,.06);
  --sh-md:0 14px 34px rgba(23,18,31,.09);
  --sh-lg:0 26px 64px rgba(242,84,11,.16);
  --ease:220ms ease;
}

*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  padding-top:112px;
  font-family:system-ui,-apple-system,"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Noto Sans SC",sans-serif;
  font-size:16px;
  line-height:1.85;
  letter-spacing:0;
  color:var(--text);
  background:var(--white);
  -webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4,h5{margin:0;color:var(--ink);line-height:1.32;font-weight:700;}
p{margin:0;}
a{color:inherit;text-decoration:none;}
img{max-width:100%;display:block;}
ul,ol{margin:0;}
button{font:inherit;border:0;background:none;cursor:pointer;color:inherit;}
::selection{background:rgba(242,84,11,.18);}
:focus-visible{outline:3px solid rgba(242,84,11,.75);outline-offset:2px;border-radius:8px;}

.shell{width:100%;max-width:1200px;margin:0 auto;padding:0 24px;}
.num{font-variant-numeric:tabular-nums;}

/* ---------- 阅读进度 ---------- */
.read-progress{
  position:fixed;top:0;left:0;height:3px;width:0;
  background:var(--grad);z-index:1200;border-radius:0 3px 3px 0;
  transition:width .12s linear;
}

/* ---------- 悬浮胶囊导航 ---------- */
.site-header{
  position:fixed;top:16px;left:0;right:0;z-index:1030;
  display:flex;justify-content:center;padding:0 16px;
}
.nav-pill{
  width:100%;max-width:1080px;height:66px;
  display:flex;align-items:center;gap:16px;
  padding:0 12px 0 18px;
  background:rgba(255,255,255,.88);
  -webkit-backdrop-filter:blur(14px);
  backdrop-filter:blur(14px);
  border:1px solid var(--line);
  border-radius:999px;
  box-shadow:var(--sh-md);
  transition:height var(--ease),padding var(--ease),box-shadow var(--ease);
}
.site-header.is-scrolled .nav-pill{height:56px;padding:0 10px 0 14px;}
.brand{display:flex;align-items:center;gap:10px;white-space:nowrap;}
.brand__mark{
  width:34px;height:34px;border-radius:11px;
  background:var(--grad);color:#fff;
  display:inline-flex;align-items:center;justify-content:center;
  font-size:17px;font-weight:800;flex:none;
  box-shadow:0 6px 16px rgba(242,84,11,.32);
}
.brand__text{font-size:16px;font-weight:800;color:var(--ink);letter-spacing:-.01em;}
.nav-main{display:flex;align-items:center;gap:4px;margin-left:auto;}
.nav-link{
  position:relative;padding:8px 14px;border-radius:999px;
  font-size:14.5px;color:var(--text);
  transition:color var(--ease),background var(--ease);
}
.nav-link:hover{color:var(--brand);background:var(--brand-soft);}
.nav-link.is-active{color:var(--brand);background:var(--brand-soft);font-weight:600;}
.nav-link.is-active::after{
  content:"";position:absolute;left:50%;bottom:2px;
  transform:translateX(-50%);
  width:18px;height:3px;border-radius:3px;background:var(--brand);
}
.btn-brand{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:11px 22px;border-radius:999px;
  background:var(--grad);color:#fff;
  font-size:14.5px;font-weight:700;
  box-shadow:var(--sh-sm);
  transition:background var(--ease),box-shadow var(--ease),transform var(--ease),color var(--ease);
  white-space:nowrap;
}
.btn-brand:hover{background:var(--brand-dark);color:#fff;box-shadow:var(--sh-lg);transform:translateY(-2px);}
.btn-brand span[aria-hidden]{transition:transform var(--ease);display:inline-block;}
.btn-brand:hover span[aria-hidden]{transform:translateX(4px);}
.btn-ghost{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:11px 22px;border-radius:999px;
  border:1px solid rgba(23,18,31,.14);
  color:var(--ink);font-size:14.5px;font-weight:600;
  transition:border-color var(--ease),color var(--ease),transform var(--ease),background var(--ease);
}
.btn-ghost:hover{border-color:var(--brand);color:var(--brand);background:var(--brand-soft);transform:translateY(-2px);}
.nav-toggle{
  display:none;width:40px;height:40px;border-radius:12px;
  border:1px solid var(--line);
  align-items:center;justify-content:center;flex-direction:column;gap:4px;
  flex:none;
}
.nav-toggle span{display:block;width:16px;height:2px;border-radius:2px;background:var(--ink);transition:var(--ease);}

/* ---------- 面包屑 ---------- */
.crumb{
  display:flex;flex-wrap:wrap;align-items:center;gap:8px;
  font-size:13px;color:var(--muted);
  padding:26px 0 18px;
}
.crumb a{color:var(--muted);transition:color var(--ease);}
.crumb a:hover{color:var(--brand);}
.crumb .sep{color:rgba(23,18,31,.24);}
.crumb .current{color:var(--text);max-width:520px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;}

/* ---------- 文章头部 ---------- */
.article-head{max-width:900px;}
.badge{
  display:inline-flex;align-items:center;gap:6px;
  padding:6px 14px;border-radius:999px;
  background:var(--teal-soft);color:var(--teal-deep);
  font-size:13px;font-weight:600;
  border:1px solid rgba(15,163,160,.18);
}
.article-title{
  font-size:42px;line-height:1.32;
  margin:16px 0 18px;
  letter-spacing:-.01em;
}
.meta-row{
  display:flex;flex-wrap:wrap;align-items:center;gap:10px 20px;
  font-size:14px;color:var(--muted);
  padding-bottom:22px;border-bottom:1px solid var(--line);
}
.meta-row .dot{width:4px;height:4px;border-radius:50%;background:rgba(23,18,31,.18);display:inline-block;}
.lead-box{
  border-left:3px solid var(--brand);
  padding:4px 0 4px 18px;
  margin:26px 0 30px;
  font-size:16.5px;line-height:1.85;color:var(--text);
  max-width:820px;
}
.cover{
  position:relative;aspect-ratio:16/9;border-radius:var(--r-img);
  overflow:hidden;background:var(--warm);margin-bottom:12px;
}
.cover img{width:100%;height:100%;object-fit:cover;}
.cover::after{
  content:"";position:absolute;inset:0;background:rgba(242,84,11,0);
  transition:background var(--ease);
}
.cover:hover::after{background:rgba(242,84,11,.08);}
.cover-cap{font-size:13px;color:var(--muted);margin-bottom:44px;}

/* ---------- 正文 + 侧栏 ---------- */
.layout-row{
  display:grid;grid-template-columns:minmax(0,1fr) 336px;
  gap:56px;align-items:start;
}
.article-body{max-width:760px;font-size:16px;line-height:1.85;color:var(--text);}
.article-body > *:first-child{margin-top:0;}
.article-body h2{
  position:relative;font-size:30px;line-height:1.32;
  margin:48px 0 16px;padding-left:16px;color:var(--ink);
}
.article-body h2::before{
  content:"";position:absolute;left:0;top:9px;bottom:9px;width:4px;
  border-radius:4px;background:var(--grad);
}
.article-body h3{font-size:21px;line-height:1.32;margin:32px 0 12px;color:var(--ink);}
.article-body h4{font-size:17px;margin:24px 0 10px;color:var(--ink);}
.article-body p{margin:0 0 20px;}
.article-body strong{color:var(--ink);}
.article-body a{color:var(--teal);text-decoration:underline;text-underline-offset:3px;transition:color var(--ease);}
.article-body a:hover{color:var(--brand);}
.article-body ul{margin:0 0 20px;padding-left:22px;list-style:none;}
.article-body ul > li{position:relative;margin-bottom:10px;}
.article-body ul > li::before{
  content:"";position:absolute;left:-15px;top:.72em;
  width:6px;height:6px;border-radius:50%;background:var(--brand);
}
.article-body ol{margin:0 0 20px;padding-left:28px;list-style:none;counter-reset:li;}
.article-body ol > li{position:relative;counter-increment:li;margin-bottom:10px;}
.article-body ol > li::before{
  content:counter(li);
  position:absolute;left:-28px;top:.28em;
  width:20px;height:20px;border-radius:6px;
  background:var(--brand-soft);color:var(--brand);
  font-size:12px;font-weight:700;
  display:flex;align-items:center;justify-content:center;
}
.article-body blockquote{
  margin:26px 0;padding:16px 20px;
  background:var(--brand-soft);
  border-left:4px solid var(--brand);
  border-radius:12px;color:var(--ink);
}
.article-body blockquote p:last-child{margin-bottom:0;}
.article-body img{border-radius:var(--r-img);margin:24px auto;height:auto;}
.article-body figure{margin:24px 0;}
.article-body figcaption{font-size:13px;color:var(--muted);text-align:center;margin-top:10px;}
.article-body table{
  width:100%;display:block;overflow-x:auto;
  border-collapse:collapse;font-size:14.5px;margin:24px 0;
  border-radius:12px;
}
.article-body th{
  background:var(--teal-soft);color:var(--teal-deep);font-weight:700;
  padding:12px 14px;text-align:left;white-space:nowrap;
  border-bottom:1px solid var(--line);
}
.article-body td{
  padding:12px 14px;border-bottom:1px solid var(--line);white-space:nowrap;
}
.article-body tbody tr:nth-child(even){background:var(--warm);}
.article-body pre{
  background:var(--ink);color:#F7F4F1;
  border-radius:12px;padding:16px 18px;
  overflow-x:auto;font-size:13px;line-height:1.7;
  font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;
  margin:24px 0;
}
.article-body pre code{background:none;border:0;padding:0;color:inherit;font-size:inherit;}
.article-body code{font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;font-size:.92em;}
.article-body p code,.article-body li code{
  background:var(--warm);border:1px solid var(--line);border-radius:6px;
  padding:1px 6px;color:var(--brand-dark);
}
.article-body hr{border:0;height:1px;background:var(--line);margin:32px 0;}

/* ---------- 空态 ---------- */
.empty-state{
  max-width:620px;padding:56px 32px;text-align:center;
  background:var(--white);border:1px solid var(--line);
  border-radius:var(--r-md);box-shadow:var(--sh-sm);
}
.empty-ico{
  width:64px;height:64px;border-radius:20px;margin:0 auto 20px;
  display:flex;align-items:center;justify-content:center;
  background:var(--teal-soft);color:var(--teal-deep);
  font-size:20px;font-weight:800;
  border:1px solid rgba(15,163,160,.18);
}
.empty-state h2{font-size:22px;margin-bottom:12px;}
.empty-state p{color:var(--muted);font-size:15px;margin-bottom:24px;}

/* ---------- 侧栏 ---------- */
.side-sticky{position:sticky;top:104px;display:flex;flex-direction:column;gap:20px;}
.side-card{
  background:var(--white);border:1px solid var(--line);
  border-radius:var(--r-md);padding:22px;
  box-shadow:var(--sh-sm);
  transition:box-shadow var(--ease),transform var(--ease);
}
.side-card:hover{box-shadow:var(--sh-md);}
.side-card h3{
  font-size:17px;margin-bottom:14px;
  display:flex;align-items:center;gap:9px;
}
.side-card h3::before{
  content:"";width:16px;height:3px;border-radius:3px;background:var(--brand);flex:none;
}
.toc-list li + li{margin-top:6px;}
.toc-list a{
  display:flex;align-items:center;gap:8px;
  font-size:14.5px;color:var(--text);padding:6px 0;
  transition:color var(--ease),transform var(--ease);
}
.toc-list a:hover{color:var(--brand);transform:translateX(3px);}
.toc-list a::before{
  content:"";width:6px;height:6px;border-radius:50%;
  background:var(--teal);opacity:.6;flex:none;
}
.side-cta{background:var(--grad-dark);border-color:transparent;position:relative;overflow:hidden;}
.side-cta::before{
  content:"";position:absolute;right:-60px;top:-70px;
  width:200px;height:200px;border-radius:50%;
  background:radial-gradient(circle,rgba(242,84,11,.5),transparent 68%);
}
.side-cta h3{color:#fff;position:relative;}
.side-cta h3::before{background:var(--yellow);}
.side-cta p{position:relative;color:rgba(255,255,255,.74);font-size:14px;line-height:1.8;margin-bottom:16px;}
.side-cta .btn-brand{position:relative;width:100%;}

/* ---------- 相关推荐 ---------- */
.related{margin-top:80px;}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:20px;margin-bottom:26px;}
.section-head h2{
  font-size:30px;position:relative;padding-left:16px;
}
.section-head h2::before{
  content:"";position:absolute;left:0;top:9px;bottom:9px;
  width:4px;border-radius:4px;background:var(--grad);
}
.section-head .more-link{font-size:14.5px;color:var(--teal);transition:color var(--ease),transform var(--ease);}
.section-head .more-link:hover{color:var(--brand);transform:translateX(3px);}
.rec-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px;}
.rec-card{
  display:flex;flex-direction:column;
  background:var(--white);border:1px solid var(--line);
  border-radius:var(--r-md);overflow:hidden;
  box-shadow:var(--sh-sm);
  transition:transform var(--ease),box-shadow var(--ease),border-color var(--ease);
}
.rec-card:hover{transform:translateY(-2px);box-shadow:var(--sh-md);border-color:rgba(242,84,11,.24);}
.rec-thumb{aspect-ratio:16/9;overflow:hidden;background:var(--warm);}
.rec-thumb img{width:100%;height:100%;object-fit:cover;transition:transform 320ms ease;}
.rec-card:hover .rec-thumb img{transform:scale(1.04);}
.rec-body{padding:18px 20px 22px;display:flex;flex-direction:column;gap:8px;flex:1;}
.rec-body h3{font-size:17px;line-height:1.5;}
.rec-body p{font-size:14px;color:var(--muted);line-height:1.75;}
.rec-body .rec-date{margin-top:auto;font-size:13px;color:var(--muted);padding-top:6px;}

/* ---------- 上下篇 ---------- */
.prevnext{display:grid;grid-template-columns:1fr 1fr;gap:20px;margin-top:34px;}
.pn-card{
  display:block;padding:20px 22px;
  background:var(--white);border:1px solid var(--line);
  border-radius:var(--r-md);
  transition:transform var(--ease),box-shadow var(--ease),border-color var(--ease);
}
.pn-card:hover{transform:translateY(-2px);box-shadow:var(--sh-md);border-color:rgba(242,84,11,.32);}
.pn-label{font-size:13px;color:var(--muted);display:block;margin-bottom:6px;}
.pn-title{font-size:16px;font-weight:700;color:var(--ink);line-height:1.5;}

/* ---------- CTA 收尾 ---------- */
.cta-band{
  margin-top:88px;background:var(--grad-dark);color:#fff;
  position:relative;overflow:hidden;
}
.cta-band::before{
  content:"";position:absolute;right:-80px;top:-140px;
  width:440px;height:440px;border-radius:50%;
  background:radial-gradient(circle,rgba(242,84,11,.5),transparent 66%);
}
.cta-inner{
  position:relative;z-index:1;
  display:flex;align-items:center;justify-content:space-between;gap:32px;
  padding-top:56px;padding-bottom:56px;
}
.cta-inner h2{color:#fff;font-size:26px;}
.cta-inner p{color:rgba(255,255,255,.74);font-size:15px;margin-top:10px;line-height:1.8;}

/* ---------- 页脚 ---------- */
.site-footer{
  position:relative;margin-top:0;
  background:var(--grad-dark);color:rgba(255,255,255,.8);
  padding:64px 0 0;
}
.site-footer::before{
  content:"";position:absolute;top:0;left:0;right:0;height:1px;background:var(--grad);
}
.footer-brand{
  display:flex;align-items:center;gap:10px;
  font-size:16px;font-weight:800;color:#fff;margin-bottom:14px;
}
.footer-brand .brand__mark{width:32px;height:32px;border-radius:10px;font-size:16px;box-shadow:none;}
.footer-about{font-size:14px;line-height:1.85;color:rgba(255,255,255,.68);max-width:340px;}
.site-footer h4{font-size:15px;color:#fff;margin-bottom:16px;font-weight:700;}
.footer-links li + li{margin-top:9px;}
.footer-links a{font-size:14.5px;color:rgba(255,255,255,.72);transition:color var(--ease),padding-left var(--ease);}
.footer-links a:hover{color:#FF8A3D;padding-left:4px;}
.footer-meta{font-size:13.5px;line-height:1.95;color:rgba(255,255,255,.6);}
.footer-bottom{
  margin-top:48px;padding:20px 0 26px;
  border-top:1px solid rgba(255,255,255,.12);
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:10px;
  font-size:13px;color:rgba(255,255,255,.56);
}

/* ---------- 响应式 ---------- */
@media (max-width:1199.98px){
  .layout-row{grid-template-columns:minmax(0,1fr) 300px;gap:40px;}
}
@media (max-width:991.98px){
  body{padding-top:100px;}
  .nav-pill{position:relative;}
  .nav-toggle{display:flex;margin-left:auto;}
  .nav-main{
    position:absolute;top:calc(100% + 10px);left:0;right:0;
    flex-direction:column;align-items:stretch;gap:4px;
    padding:10px;margin-left:0;
    background:#fff;border:1px solid var(--line);border-radius:20px;
    box-shadow:var(--sh-md);
    display:none;
  }
  .nav-main.is-open{display:flex;}
  .nav-link{padding:12px 14px;border-radius:14px;}
  .nav-link.is-active::after{display:none;}
  .nav-cta{display:none;}
  .layout-row{grid-template-columns:1fr;gap:44px;}
  .side-sticky{position:static;}
  .article-title{font-size:32px;}
  .article-body h2{font-size:26px;}
  .rec-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
}
@media (max-width:767.98px){
  body{padding-top:96px;font-size:15.5px;}
  .shell{padding:0 18px;}
  .article-title{font-size:28px;}
  .article-body h2{font-size:23px;margin-top:38px;}
  .article-body h3{font-size:18px;margin-top:28px;}
  .lead-box{font-size:15.5px;}
  .section-head{flex-direction:column;align-items:flex-start;gap:10px;}
  .section-head h2{font-size:23px;}
  .rec-grid{grid-template-columns:1fr;}
  .prevnext{grid-template-columns:1fr;}
  .cta-inner{flex-direction:column;align-items:flex-start;gap:22px;padding-top:44px;padding-bottom:44px;}
  .cta-inner h2{font-size:22px;}
  .cta-inner .btn-brand{width:100%;}
  .site-footer{padding-top:48px;}
  .footer-bottom{flex-direction:column;align-items:flex-start;}
}
@media (max-width:520px){
  .brand__text{font-size:14.5px;}
  .crumb{font-size:12.5px;padding-top:18px;}
  .article-title{font-size:26px;}
  .meta-row{font-size:13px;gap:8px 14px;}
  .side-card{padding:18px;}
}
@media (prefers-reduced-motion:reduce){
  *{transition:none !important;animation:none !important;scroll-behavior:auto !important;}
  .btn-brand:hover,.btn-ghost:hover,.rec-card:hover,.pn-card:hover,.toc-list a:hover{transform:none;}
}

/* roulang page: category1 */
:root{
  --brand:#F2540B;
  --brand-deep:#C93F05;
  --brand-tint:#FFF1E8;
  --cyan:#0FA3A0;
  --cyan-tint:#E6F7F5;
  --yellow:#FFC53D;
  --ink:#17121F;
  --text:#3A3442;
  --muted:#6B6478;
  --line:rgba(23,18,31,.08);
  --line-strong:rgba(23,18,31,.12);
  --warm:#F7F4F1;
  --white:#FFFFFF;
  --grad-brand:linear-gradient(120deg,#F2540B 0%,#FF7A2F 48%,#FFC53D 100%);
  --grad-dark:linear-gradient(135deg,#17121F 0%,#2B1D33 62%,#3A1F2B 100%);
  --r-lg:24px;
  --r-md:18px;
  --r-img:16px;
  --r-input:12px;
  --sh-sm:0 2px 8px rgba(23,18,31,.06);
  --sh-md:0 14px 34px rgba(23,18,31,.09);
  --sh-lg:0 26px 64px rgba(242,84,11,.16);
  --ease:220ms ease;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:system-ui,-apple-system,"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Noto Sans SC",sans-serif;
  font-size:16px;
  line-height:1.85;
  color:var(--text);
  background:var(--warm);
  -webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4,h5{margin:0;color:var(--ink);line-height:1.32;font-weight:700;letter-spacing:0}
p{margin:0 0 16px}
a{color:inherit;text-decoration:none;transition:color var(--ease),background-color var(--ease)}
img{display:block;max-width:100%;height:auto}
ul,ol{margin:0;padding:0;list-style:none}
button{font:inherit;color:inherit;border:0;background:none;cursor:pointer}
:focus-visible{outline:3px solid var(--brand);outline-offset:2px;border-radius:6px}
.shell{width:100%;max-width:1200px;margin:0 auto;padding:0 24px}
.num{font-variant-numeric:tabular-nums}

/* ---------- 导航 ---------- */
.site-header{
  position:sticky;
  top:16px;
  z-index:1030;
  width:calc(100% - 32px);
  max-width:1080px;
  margin:16px auto 0;
}
.nav-wrap{
  display:flex;
  align-items:center;
  gap:16px;
  height:66px;
  padding:0 20px;
  border-radius:999px;
  background:rgba(255,255,255,.88);
  -webkit-backdrop-filter:blur(14px);
  backdrop-filter:blur(14px);
  border:1px solid var(--line);
  box-shadow:var(--sh-md);
  transition:height var(--ease),padding var(--ease);
}
.site-header.is-scrolled .nav-wrap{height:56px;padding:0 14px}
.brand{display:inline-flex;align-items:center;gap:10px;flex:0 0 auto}
.brand__mark{
  width:34px;height:34px;border-radius:11px;
  background:var(--grad-brand);
  color:#fff;font-size:16px;font-weight:700;
  display:inline-flex;align-items:center;justify-content:center;
  box-shadow:0 6px 16px rgba(242,84,11,.28);
}
.brand__text{font-size:16px;font-weight:700;color:var(--ink);white-space:nowrap}
.nav-main{display:flex;align-items:center;gap:4px;margin-left:auto}
.nav-link{
  position:relative;
  padding:9px 16px;
  border-radius:999px;
  font-size:15px;
  color:var(--muted);
  white-space:nowrap;
  transition:color var(--ease),background-color var(--ease);
}
.nav-link:hover{color:var(--brand);background:var(--brand-tint)}
.nav-link.is-active{color:var(--brand);background:var(--brand-tint);font-weight:600}
.nav-link.is-active::after{
  content:"";position:absolute;left:50%;bottom:2px;transform:translateX(-50%);
  width:22px;height:3px;border-radius:999px;background:var(--brand);
}
.nav-right{display:flex;align-items:center;gap:12px;flex:0 0 auto}
.btn-brand{
  display:inline-flex;align-items:center;gap:8px;
  padding:12px 24px;border-radius:999px;
  background:var(--grad-brand);color:#fff;
  font-size:15px;font-weight:600;line-height:1.2;
  box-shadow:var(--sh-sm);
  transition:transform var(--ease),box-shadow var(--ease),background-color var(--ease);
}
.btn-brand:hover{background:var(--brand-deep);color:#fff;transform:translateY(-2px);box-shadow:var(--sh-md)}
.btn-brand i{transition:transform var(--ease)}
.btn-brand:hover i{transform:translateX(4px)}
.nav-cta{padding:10px 20px;font-size:14.5px}
.nav-toggle{
  display:none;align-items:center;justify-content:center;
  width:42px;height:42px;border-radius:14px;
  background:var(--brand-tint);color:var(--brand);font-size:17px;
}
.nav-toggle:hover{background:#ffe3d2}
.mobile-panel{
  display:none;
  position:absolute;left:0;right:0;top:calc(100% + 10px);
  background:#fff;border:1px solid var(--line);
  border-radius:20px;box-shadow:var(--sh-md);
  padding:10px;
}
.mobile-panel.is-open{display:block}
.mobile-panel a{
  display:flex;align-items:center;justify-content:space-between;
  padding:13px 16px;border-radius:14px;
  font-size:15px;color:var(--text);
}
.mobile-panel a:hover{background:var(--warm);color:var(--brand)}
.mobile-panel a.is-active{background:var(--brand-tint);color:var(--brand);font-weight:600}
.mobile-panel a i{font-size:12px;color:var(--muted)}
.mobile-panel .m-cta{
  margin-top:8px;justify-content:center;
  background:var(--grad-brand);color:#fff;font-weight:600;
}
.mobile-panel .m-cta i{color:#fff}

/* ---------- Hero ---------- */
.page-hero{
  position:relative;
  overflow:hidden;
  margin-top:16px;
  padding:80px 0 56px;
  border-radius:0 0 36px 36px;
  background:var(--grad-dark);
}
.page-hero__bg{
  position:absolute;inset:0;
  background-image:url('/assets/images/backpic/back-1.webp');
  background-size:cover;background-position:center;
  opacity:.32;
}
.page-hero::after{
  content:"";
  position:absolute;width:620px;height:620px;right:-180px;top:-260px;
  background:radial-gradient(circle,rgba(242,84,11,.30),rgba(242,84,11,0) 70%);
  pointer-events:none;
}
.page-hero .shell{position:relative;z-index:2}
.hero-tag{
  display:inline-flex;align-items:center;gap:8px;
  padding:7px 16px;border-radius:999px;
  background:rgba(255,255,255,.12);
  border:1px solid rgba(255,255,255,.24);
  color:#FFD9C2;font-size:13px;letter-spacing:0;
}
.hero-tag i{color:var(--yellow)}
.page-hero h1{
  margin:20px 0 16px;
  font-size:42px;
  color:#fff;
  max-width:860px;
}
.page-hero h1 .hl{
  position:relative;white-space:nowrap;
}
.page-hero h1 .hl::after{
  content:"";position:absolute;left:0;right:0;bottom:2px;height:8px;
  border-radius:999px;background:var(--grad-brand);opacity:.55;z-index:-1;
}
.hero-lead{
  max-width:720px;
  color:rgba(255,255,255,.8);
  font-size:16px;
  margin-bottom:24px;
}
.crumb{
  display:flex;flex-wrap:wrap;align-items:center;gap:8px;
  font-size:13px;color:rgba(255,255,255,.62);
}
.crumb a{color:rgba(255,255,255,.62)}
.crumb a:hover{color:#fff}
.crumb .sep{opacity:.5}
.crumb .now{color:#fff}

/* ---------- 主体布局 ---------- */
.main-body{padding:64px 0 8px}
.sec-head{margin-bottom:18px}
.sec-title{
  display:flex;align-items:center;gap:12px;
  font-size:30px;
}
.sec-title::before{
  content:"";flex:0 0 28px;width:28px;height:4px;border-radius:999px;
  background:var(--grad-brand);
}
.sec-sub{color:var(--muted);font-size:14.5px;margin-top:8px}
.content-block{padding:34px 0;border-bottom:1px solid var(--line)}
.content-block:last-child{border-bottom:0}
.content-block p:last-child{margin-bottom:0}
.figure{
  margin:24px 0 0;
  border-radius:var(--r-img);
  overflow:hidden;
  aspect-ratio:16/9;
  background:var(--warm);
  border:1px solid var(--line);
}
.figure img{width:100%;height:100%;object-fit:cover;transition:transform 420ms ease}
.figure:hover img{transform:scale(1.03)}
.figure-cap{font-size:13px;color:var(--muted);margin-top:10px}

.tag-list{display:flex;flex-wrap:wrap;gap:10px;margin:0 0 18px}
.tag{
  display:inline-flex;align-items:center;gap:6px;
  padding:6px 14px;border-radius:999px;
  font-size:13px;color:var(--cyan);background:var(--cyan-tint);
}
.tag--brand{color:var(--brand);background:var(--brand-tint)}

.check-list li{
  position:relative;padding:10px 0 10px 30px;
  border-bottom:1px dashed var(--line);
}
.check-list li:last-child{border-bottom:0}
.check-list li::before{
  content:"\f00c";
  font-family:"Font Awesome 6 Free";font-weight:900;
  position:absolute;left:0;top:12px;
  font-size:12px;color:var(--cyan);
}
.check-list li strong{color:var(--ink);font-weight:600}

.step-list li{
  display:flex;gap:16px;
  padding:16px 0;
  border-bottom:1px dashed var(--line);
}
.step-list li:last-child{border-bottom:0;padding-bottom:0}
.step-no{
  flex:0 0 34px;height:34px;border-radius:12px;
  background:var(--brand-tint);color:var(--brand);
  font-weight:700;font-size:15px;
  display:flex;align-items:center;justify-content:center;
  font-variant-numeric:tabular-nums;
}
.step-text strong{display:block;color:var(--ink);font-size:16.5px;margin-bottom:4px}
.step-text span{color:var(--text);font-size:15px}

/* ---------- 侧栏 ---------- */
.side-col{position:relative}
.toc-card{
  position:sticky;top:96px;
  background:#fff;border:1px solid var(--line);
  border-radius:var(--r-md);padding:22px;
  box-shadow:var(--sh-sm);
}
.toc-card h3{font-size:17px;margin-bottom:6px}
.toc-card .toc-hint{font-size:13px;color:var(--muted);margin-bottom:12px}
.toc-list a{
  display:flex;align-items:center;gap:10px;
  padding:9px 12px;border-radius:10px;
  font-size:14.5px;color:var(--muted);
}
.toc-list a::before{
  content:"";width:6px;height:6px;border-radius:50%;
  background:var(--line-strong);flex:0 0 6px;
  transition:background-color var(--ease);
}
.toc-list a:hover{background:var(--brand-tint);color:var(--brand)}
.toc-list a:hover::before{background:var(--brand)}
.side-cta{
  position:relative;overflow:hidden;
  margin-top:20px;padding:24px;
  border-radius:var(--r-md);
  background:var(--grad-dark);
  color:rgba(255,255,255,.78);
}
.side-cta::after{
  content:"";position:absolute;width:280px;height:280px;right:-110px;bottom:-140px;
  background:radial-gradient(circle,rgba(242,84,11,.35),rgba(242,84,11,0) 70%);
}
.side-cta h3{position:relative;z-index:1;color:#fff;font-size:17px;margin-bottom:8px}
.side-cta p{position:relative;z-index:1;font-size:14px;margin-bottom:16px}
.side-cta .btn-brand{position:relative;z-index:1;width:100%;justify-content:center;padding:12px 18px;font-size:14.5px}

/* ---------- 关键要点卡组 ---------- */
.key-section{padding:72px 0 0}
.keygrid{
  display:grid;
  grid-template-columns:1.15fr 1fr;
  gap:24px;
  align-items:start;
  padding-bottom:26px;
  margin-top:28px;
}
.key-card{
  background:#fff;
  border:1px solid var(--line);
  border-radius:var(--r-lg);
  padding:28px;
  box-shadow:var(--sh-sm);
  transition:transform var(--ease),box-shadow var(--ease);
}
.key-card:hover{transform:translateY(-2px);box-shadow:var(--sh-md)}
.key-card h3{font-size:19px;margin-bottom:12px}
.key-card p{font-size:15px;margin-bottom:12px}
.key-card--big{grid-row:span 2;border-top:4px solid var(--cyan)}
.key-card--offset{transform:translateX(-20px)}
.key-card--offset:hover{transform:translateX(-20px) translateY(-2px)}
.key-card .mini-list li{
  position:relative;padding:8px 0 8px 22px;
  font-size:14.5px;color:var(--text);
  border-bottom:1px dashed var(--line);
}
.key-card .mini-list li:last-child{border-bottom:0}
.key-card .mini-list li::before{
  content:"";position:absolute;left:0;top:17px;
  width:8px;height:8px;border-radius:3px;background:var(--brand);
}
.key-card .k-label{
  display:inline-block;margin-bottom:10px;
  padding:4px 12px;border-radius:999px;
  font-size:12.5px;color:var(--cyan);background:var(--cyan-tint);
}

/* ---------- FAQ ---------- */
.faq-section{padding:72px 0 0}
.faq-acc{margin-top:28px}
.faq-acc .accordion-item{
  border:1px solid var(--line);
  border-radius:var(--r-md)!important;
  background:#fff;
  margin-bottom:14px;
  overflow:hidden;
  box-shadow:var(--sh-sm);
}
.faq-acc .accordion-button{
  background:#fff;
  color:var(--ink);
  font-size:17px;
  font-weight:600;
  padding:20px 24px;
  box-shadow:none!important;
  display:flex;align-items:center;gap:16px;
}
.faq-acc .accordion-button::after{
  content:"+";
  display:flex;align-items:center;justify-content:center;
  flex:0 0 28px;width:28px;height:28px;
  margin-left:auto;
  background:var(--brand-tint);
  background-image:none;
  color:var(--brand);
  font-size:19px;font-weight:600;line-height:1;
  border-radius:50%;
  transition:background-color var(--ease),color var(--ease);
}
.faq-acc .accordion-button:not(.collapsed){
  color:var(--brand);
  background:#fff;
}
.faq-acc .accordion-button:not(.collapsed)::after{
  content:"−";
  background:var(--brand);
  color:#fff;
}
.faq-acc .accordion-button:hover{color:var(--brand)}
.faq-acc .accordion-body{
  position:relative;
  padding:2px 24px 20px 20px;
  font-size:15px;
  color:var(--text);
}
.faq-acc .accordion-collapse.show .accordion-body::before{
  content:"";position:absolute;left:0;top:0;bottom:16px;width:3px;
  border-radius:0 999px 999px 0;background:var(--brand);
}

/* ---------- CTA 收尾 ---------- */
.cta-section{padding:72px 0 0}
.cta-band{
  position:relative;
  overflow:hidden;
  display:flex;align-items:center;justify-content:space-between;gap:32px;
  padding:48px;
  border-radius:var(--r-lg);
  background:var(--grad-dark);
}
.cta-band::after{
  content:"";position:absolute;width:520px;height:520px;right:-160px;top:-240px;
  background:radial-gradient(circle,rgba(242,84,11,.35),rgba(242,84,11,0) 70%);
}
.cta-band__txt{position:relative;z-index:1;max-width:640px}
.cta-band h2{color:#fff;font-size:24px;margin-bottom:10px}
.cta-band p{color:rgba(255,255,255,.76);font-size:15px;margin:0}
.cta-band .btn-brand{position:relative;z-index:1;flex:0 0 auto;padding:15px 30px;font-size:15.5px}

/* ---------- 页脚 ---------- */
.site-footer{
  position:relative;
  margin-top:88px;
  padding:64px 0 24px;
  background:var(--ink);
  color:rgba(255,255,255,.7);
}
.site-footer::before{
  content:"";position:absolute;top:0;left:0;right:0;height:1px;
  background:var(--grad-brand);
}
.footer-brand{
  display:flex;align-items:center;gap:10px;
  color:#fff;font-size:16px;font-weight:700;
  margin-bottom:14px;
}
.footer-about{font-size:14px;color:rgba(255,255,255,.62);line-height:1.8;margin:0}
.site-footer h4{
  color:#fff;font-size:15px;margin-bottom:14px;font-weight:600;
}
.footer-links li{margin-bottom:9px}
.footer-links a{font-size:14px;color:rgba(255,255,255,.62)}
.footer-links a:hover{color:var(--yellow)}
.footer-meta{font-size:13.5px;color:rgba(255,255,255,.55);line-height:1.9;margin:0}
.footer-bottom{
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:10px;
  margin-top:40px;padding-top:20px;
  border-top:1px solid rgba(255,255,255,.08);
  font-size:13px;color:rgba(255,255,255,.45);
}

/* ---------- 响应式 ---------- */
@media (max-width:1199.98px){
  .page-hero h1{font-size:38px}
  .sec-title{font-size:27px}
}
@media (max-width:991.98px){
  .nav-main,.nav-cta{display:none}
  .nav-toggle{display:inline-flex}
  .brand{margin-right:auto}
  .page-hero{padding:64px 0 48px}
  .page-hero h1{font-size:34px}
  .toc-card{position:static;margin-bottom:20px}
  .keygrid{grid-template-columns:1fr;padding-bottom:0}
  .key-card--big{grid-row:auto}
  .key-card--offset{transform:none}
  .key-card--offset:hover{transform:translateY(-2px)}
  .cta-band{flex-direction:column;align-items:flex-start;padding:38px 28px}
  .cta-band .btn-brand{width:100%;justify-content:center}
}
@media (max-width:767.98px){
  body{font-size:15.5px;line-height:1.8}
  .shell{padding:0 18px}
  .site-header{width:calc(100% - 24px);margin-top:12px;top:12px}
  .brand__text{font-size:15px}
  .page-hero{margin-top:12px;padding:48px 0 40px;border-radius:0 0 24px 24px}
  .page-hero h1{font-size:28px;margin:16px 0 12px}
  .hero-lead{font-size:15px;margin-bottom:18px}
  .main-body{padding:48px 0 0}
  .sec-title{font-size:23px}
  .sec-title::before{flex-basis:22px;width:22px;height:3px}
  .content-block{padding:26px 0}
  .key-card,.toc-card,.side-cta{border-radius:16px}
  .key-card{padding:22px}
  .key-section,.faq-section,.cta-section{padding:56px 0 0}
  .faq-acc .accordion-button{font-size:16px;padding:16px 18px}
  .faq-acc .accordion-body{padding:2px 18px 16px 18px;font-size:14.5px}
  .cta-band{padding:30px 22px}
  .cta-band h2{font-size:19px}
  .site-footer{margin-top:64px;padding:48px 0 20px}
  .footer-bottom{margin-top:28px}
}
@media (prefers-reduced-motion:reduce){
  *{transition:none!important;animation:none!important}
  html{scroll-behavior:auto}
}

/* roulang page: category2 */
:root{
  --brand:#F2540B;--brand-dark:#C93F05;--brand-tint:#FFF1E8;
  --cyan:#0FA3A0;--cyan-tint:#E6F7F5;--lemon:#FFC53D;
  --ink:#17121F;--ink-2:#2B1D33;--text:#3A3442;--text-2:#6B6478;
  --line:rgba(23,18,31,.08);--warm:#F7F4F1;--white:#FFFFFF;
  --grad-brand:linear-gradient(120deg,#F2540B 0%,#FF7A2F 48%,#FFC53D 100%);
  --grad-ink:linear-gradient(135deg,#17121F 0%,#2B1D33 62%,#3A1F2B 100%);
  --r-lg:24px;--r-md:18px;--r-img:16px;--r-in:12px;--r-pill:999px;
  --sh-sm:0 2px 8px rgba(23,18,31,.06);
  --sh-md:0 14px 34px rgba(23,18,31,.09);
  --sh-lg:0 26px 64px rgba(242,84,11,.16);
  --sp-1:4px;--sp-2:8px;--sp-3:12px;--sp-4:16px;--sp-5:24px;--sp-6:32px;--sp-7:48px;--sp-8:64px;--sp-9:96px;
}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;scroll-padding-top:110px}
body{
  margin:0;font-family:system-ui,-apple-system,"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Noto Sans SC",sans-serif;
  font-size:16px;line-height:1.85;color:var(--text);background:var(--white);letter-spacing:0;
  overflow-x:hidden;
}
img{max-width:100%;display:block}
a{color:var(--brand);text-decoration:none;transition:color .22s ease}
a:hover{color:var(--cyan)}
h1,h2,h3,h4{margin:0;color:var(--ink);font-weight:700;line-height:1.32;letter-spacing:-.005em}
p{margin:0 0 16px}
ul{margin:0;padding:0;list-style:none}
button{font-family:inherit}
:focus-visible{outline:3px solid var(--brand);outline-offset:2px;border-radius:6px}
.shell{width:100%;max-width:1200px;margin:0 auto;padding:0 24px}
.section{padding:96px 0}
.section--warm{background:var(--warm)}
.eyebrow{display:inline-flex;align-items:center;gap:10px;font-size:13px;font-weight:600;color:var(--brand);letter-spacing:.04em;margin-bottom:14px}
.eyebrow::before{content:"";width:22px;height:3px;border-radius:var(--r-pill);background:var(--brand)}
.sec-head{max-width:760px;margin-bottom:44px}
.sec-head h2{font-size:30px;margin-bottom:14px}
.sec-head p{font-size:16px;color:var(--text-2);margin:0}
.muted{color:var(--text-2)}
.tag{display:inline-flex;align-items:center;gap:6px;font-size:13px;line-height:1;padding:7px 13px;border-radius:var(--r-pill);background:var(--cyan-tint);color:#0B7C7A;font-weight:600}
.tag--brand{background:var(--brand-tint);color:var(--brand-dark)}

/* ============ 导航 ============ */
.nav-fixed{position:fixed;top:0;left:0;right:0;z-index:1030}
.nav-shell{
  max-width:1080px;margin:16px auto 0;display:flex;align-items:center;gap:18px;
  height:66px;padding:0 14px 0 20px;border-radius:var(--r-pill);
  background:rgba(255,255,255,.88);backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);
  border:1px solid var(--line);box-shadow:var(--sh-md);
  transition:height .22s ease,max-width .22s ease,padding .22s ease;
}
.nav-fixed.is-scrolled .nav-shell{height:56px;max-width:1010px;padding:0 12px 0 16px}
.nav-brand{display:flex;align-items:center;gap:10px;flex:0 0 auto;color:var(--ink)}
.nav-brand:hover{color:var(--ink)}
.brand__mark{
  width:34px;height:34px;flex:0 0 34px;border-radius:12px;display:grid;place-items:center;
  background:var(--grad-brand);color:#fff;font-weight:800;font-size:17px;box-shadow:0 6px 16px rgba(242,84,11,.28)
}
.brand__name{font-size:15.5px;font-weight:800;letter-spacing:-.01em;white-space:nowrap}
.nav-main{display:flex;align-items:center;gap:4px;margin-left:auto}
.nav-link{
  position:relative;font-size:14.5px;font-weight:600;color:var(--text);padding:8px 14px;border-radius:var(--r-pill);
  transition:background .22s ease,color .22s ease;
}
.nav-link::after{
  content:"";position:absolute;left:50%;bottom:2px;width:18px;height:3px;border-radius:var(--r-pill);
  background:var(--brand);transform:translateX(-50%) scaleX(0);transition:transform .22s ease;
}
.nav-link:hover{background:var(--warm);color:var(--brand)}
.nav-link:hover::after{transform:translateX(-50%) scaleX(1)}
.nav-link.is-active{background:var(--brand-tint);color:var(--brand-dark)}
.nav-link.is-active::after{transform:translateX(-50%) scaleX(1)}
.nav-cta{
  flex:0 0 auto;display:inline-flex;align-items:center;gap:8px;height:42px;padding:0 20px;border-radius:var(--r-pill);
  background:var(--grad-brand);color:#fff;font-size:14.5px;font-weight:700;box-shadow:0 10px 24px rgba(242,84,11,.26);
  transition:background .22s ease,transform .22s ease,box-shadow .22s ease;
}
.nav-cta::after{content:"→";transition:transform .22s ease}
.nav-cta:hover{background:var(--brand-dark);color:#fff;transform:translateY(-2px);box-shadow:var(--sh-lg)}
.nav-cta:hover::after{transform:translateX(4px)}
.nav-toggle{
  display:none;flex-direction:column;justify-content:center;gap:5px;width:44px;height:44px;margin-left:auto;
  border:1px solid var(--line);border-radius:14px;background:#fff;cursor:pointer;padding:0 11px
}
.nav-toggle span{display:block;height:2px;border-radius:2px;background:var(--ink);transition:transform .22s ease,opacity .22s ease}
.nav-toggle[aria-expanded="true"] span:nth-child(1){transform:translateY(7px) rotate(45deg)}
.nav-toggle[aria-expanded="true"] span:nth-child(2){opacity:0}
.nav-toggle[aria-expanded="true"] span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}
.nav-mobile{
  display:none;max-width:1080px;margin:10px auto 0;padding:12px;border-radius:20px;
  background:rgba(255,255,255,.97);border:1px solid var(--line);box-shadow:var(--sh-md);
}
.nav-mobile.is-open{display:block}
.nav-mobile a{display:block;padding:12px 14px;border-radius:14px;font-size:15px;font-weight:600;color:var(--text)}
.nav-mobile a:hover{background:var(--warm);color:var(--brand)}
.nav-mobile a.is-active{background:var(--brand-tint);color:var(--brand-dark)}
.nav-mobile__cta{margin-top:8px;background:var(--grad-brand)!important;color:#fff!important;text-align:center}

/* ============ Hero 深色带 ============ */
.hero-band{
  position:relative;overflow:hidden;color:#fff;padding:162px 0 88px;
  background:var(--grad-ink);
}
.hero-band__bg{
  position:absolute;inset:0;background-image:url("/assets/images/backpic/back-2.webp");
  background-size:cover;background-position:center;opacity:.30;
}
.hero-band__veil{position:absolute;inset:0;background:linear-gradient(135deg,rgba(23,18,31,.94) 0%,rgba(43,29,51,.88) 58%,rgba(58,31,43,.90) 100%)}
.hero-band__glow{
  position:absolute;top:-160px;right:-120px;width:620px;height:620px;border-radius:50%;
  background:radial-gradient(circle,rgba(242,84,11,.18) 0%,rgba(242,84,11,0) 68%);
}
.hero-band .shell{position:relative;z-index:2}
.hero-kicker{
  display:inline-flex;align-items:center;gap:8px;font-size:13px;font-weight:600;color:#FFD9C2;
  background:rgba(242,84,11,.18);border:1px solid rgba(255,197,61,.34);padding:8px 16px;border-radius:var(--r-pill);margin-bottom:22px
}
.hero-band h1{
  color:#fff;font-size:42px;line-height:1.3;margin-bottom:20px;max-width:900px;
}
.hero-band h1 .u{position:relative;white-space:nowrap}
.hero-band h1 .u::after{
  content:"";position:absolute;left:0;right:0;bottom:2px;height:6px;border-radius:var(--r-pill);
  background:var(--grad-brand);opacity:.9;z-index:-1
}
.hero-band__lead{max-width:640px;font-size:17px;line-height:1.8;color:rgba(255,255,255,.84);margin-bottom:28px}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:26px}
.btn-main,.btn-ghost{
  display:inline-flex;align-items:center;gap:10px;height:52px;padding:0 28px;border-radius:var(--r-pill);
  font-size:16px;font-weight:700;transition:background .22s ease,transform .22s ease,box-shadow .22s ease,color .22s ease;
}
.btn-main{background:var(--grad-brand);color:#fff;box-shadow:0 16px 34px rgba(242,84,11,.32)}
.btn-main::after{content:"→";transition:transform .22s ease}
.btn-main:hover{background:var(--brand-dark);color:#fff;transform:translateY(-2px);box-shadow:var(--sh-lg)}
.btn-main:hover::after{transform:translateX(4px)}
.btn-ghost{background:transparent;color:#fff;border:1px solid rgba(255,255,255,.34)}
.btn-ghost:hover{color:#fff;border-color:#fff;background:rgba(255,255,255,.10);transform:translateY(-2px)}
.trust-row{display:flex;flex-wrap:wrap;align-items:center;gap:10px;font-size:14px;color:rgba(255,255,255,.7)}
.trust-row span{display:inline-flex;align-items:center;gap:8px}
.trust-row span::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--lemon)}
.trust-row i{width:1px;height:12px;background:rgba(255,255,255,.28);display:inline-block}
.hero-stats{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.stat{
  position:relative;overflow:hidden;background:#fff;border:1px solid var(--cyan-tint);border-radius:var(--r-md);
  padding:20px 20px 26px;box-shadow:var(--sh-sm);transition:transform .22s ease,box-shadow .22s ease
}
.stat:hover{transform:translateY(-2px);box-shadow:var(--sh-md)}
.stat::after{content:"";position:absolute;left:0;right:0;bottom:0;height:6px;background:var(--lemon)}
.stat b{display:block;font-size:34px;line-height:1.15;color:var(--brand);font-variant-numeric:tabular-nums;letter-spacing:-.02em}
.stat b em{font-style:normal;font-size:15px;font-weight:700;color:var(--text-2);margin-left:4px}
.stat p{margin:8px 0 0;font-size:14px;color:var(--text-2);line-height:1.6}
.crumb{margin-top:34px;font-size:13px;color:rgba(255,255,255,.66)}
.crumb ol{display:flex;flex-wrap:wrap;align-items:center;gap:8px;list-style:none;padding:0;margin:0}
.crumb li{display:flex;align-items:center;gap:8px}
.crumb li+li::before{content:"/";color:rgba(255,255,255,.34)}
.crumb a{color:rgba(255,255,255,.82)}
.crumb a:hover{color:var(--lemon)}
.crumb .current{color:rgba(255,255,255,.62)}

/* ============ 症状速查带 ============ */
.symptom-track{
  display:grid;grid-auto-flow:column;grid-auto-columns:280px;gap:16px;overflow-x:auto;
  padding:6px 4px 18px;scroll-snap-type:x mandatory;-webkit-overflow-scrolling:touch
}
.symptom-track::-webkit-scrollbar{height:6px}
.symptom-track::-webkit-scrollbar-thumb{background:rgba(23,18,31,.14);border-radius:var(--r-pill)}
.symptom-card{
  scroll-snap-align:start;background:#fff;border:1px solid var(--line);border-radius:var(--r-md);
  padding:22px;box-shadow:var(--sh-sm);transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease
}
.symptom-card:hover{transform:translateY(-2px);box-shadow:var(--sh-md);border-color:var(--cyan-tint)}
.symptom-card .num{font-size:13px;font-weight:700;color:var(--cyan);font-variant-numeric:tabular-nums;letter-spacing:.06em}
.symptom-card h3{font-size:18px;margin:10px 0 8px}
.symptom-card p{font-size:14.5px;color:var(--text-2);line-height:1.75;margin:0}

/* ============ 时间线 ============ */
.tl{position:relative}
.tl::before{
  content:"";position:absolute;top:12px;bottom:12px;left:50%;width:2px;transform:translateX(-50%);
  background:var(--grad-brand);border-radius:var(--r-pill);opacity:.42
}
.tl-item{display:grid;grid-template-columns:1fr 76px 1fr;align-items:center;gap:0;margin-bottom:56px}
.tl-item:last-child{margin-bottom:0}
.tl-node{
  grid-column:2;justify-self:center;width:64px;height:64px;border-radius:50%;background:#fff;
  border:2px solid var(--brand);color:var(--brand);display:grid;place-items:center;
  font-weight:800;font-size:18px;font-variant-numeric:tabular-nums;box-shadow:0 10px 24px rgba(242,84,11,.18);z-index:2
}
.tl-card{background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);padding:30px;box-shadow:var(--sh-sm);transition:transform .22s ease,box-shadow .22s ease}
.tl-card:hover{transform:translateY(-2px);box-shadow:var(--sh-md)}
.tl-card h3{font-size:21px;margin-bottom:12px}
.tl-card p{font-size:15.5px;color:var(--text-2);margin:0}
.tl-card .tag{margin-bottom:14px}
.tl-media{grid-column:1;border-radius:var(--r-img);overflow:hidden;box-shadow:var(--sh-sm);position:relative}
.tl-media img{width:100%;aspect-ratio:16/9;object-fit:cover;transition:transform .3s ease}
.tl-media:hover img{transform:scale(1.03)}
.tl-media::after{content:"";position:absolute;inset:0;background:rgba(242,84,11,.08);opacity:0;transition:opacity .22s ease}
.tl-media:hover::after{opacity:1}
.tl-item:nth-child(even) .tl-card{grid-column:3}
.tl-item:nth-child(even) .tl-media{grid-column:1}
.tl-item:nth-child(odd) .tl-card{grid-column:1;text-align:right}
.tl-item:nth-child(odd) .tl-card .tag{margin-left:auto}
.tl-item:nth-child(odd) .tl-media{grid-column:3}

/* ============ 对比卡 ============ */
.compare{display:grid;grid-template-columns:1fr 1fr;gap:24px}
.cmp-card{background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);overflow:hidden;box-shadow:var(--sh-sm);transition:transform .22s ease,box-shadow .22s ease}
.cmp-card:hover{transform:translateY(-2px);box-shadow:var(--sh-md)}
.cmp-head{padding:22px 26px;display:flex;align-items:center;gap:12px}
.cmp-head h3{font-size:19px;margin:0}
.cmp-head .dot{width:34px;height:34px;border-radius:50%;display:grid;place-items:center;font-weight:800;font-size:15px;color:#fff}
.cmp-card--a .cmp-head{background:var(--brand-tint)}
.cmp-card--a .cmp-head .dot{background:var(--brand)}
.cmp-card--b .cmp-head{background:var(--cyan-tint)}
.cmp-card--b .cmp-head .dot{background:var(--cyan)}
.cmp-body{padding:8px 26px 28px}
.cmp-body li{position:relative;padding:12px 0 12px 24px;font-size:15px;color:var(--text);border-bottom:1px dashed var(--line)}
.cmp-body li:last-child{border-bottom:0}
.cmp-body li::before{content:"";position:absolute;left:0;top:22px;width:8px;height:8px;border-radius:50%;background:var(--brand)}
.cmp-card--b .cmp-body li::before{background:var(--cyan)}

/* ============ FAQ ============ */
.faq .accordion-item{border:1px solid var(--line);border-radius:var(--r-md)!important;margin-bottom:14px;overflow:hidden;background:#fff;box-shadow:var(--sh-sm)}
.faq .accordion-button{
  font-size:17px;font-weight:700;color:var(--ink);background:#fff;padding:22px 24px;gap:16px;
  box-shadow:none!important;line-height:1.5
}
.faq .accordion-button:not(.collapsed){color:var(--brand);background:#fff;box-shadow:inset 3px 0 0 var(--brand)!important;padding-left:24px}
.faq .accordion-button::after{
  flex:0 0 26px;width:26px;height:26px;border-radius:50%;background-image:none!important;
  background:var(--brand-tint);color:var(--brand);display:grid;place-items:center;font-size:18px;font-weight:700;
  content:"+";transform:none!important;margin-left:auto;line-height:1
}
.faq .accordion-button:not(.collapsed)::after{content:"−";background:var(--brand);color:#fff}
.faq .accordion-body{padding:0 24px 24px;font-size:15.5px;color:var(--text-2);line-height:1.85}

/* ============ CTA 收尾 ============ */
.cta-band{position:relative;overflow:hidden;background:var(--grad-ink);color:#fff;padding:64px 0}
.cta-band::before{content:"";position:absolute;top:-140px;right:-80px;width:520px;height:520px;border-radius:50%;background:radial-gradient(circle,rgba(242,84,11,.22) 0%,rgba(242,84,11,0) 70%)}
.cta-band .shell{position:relative;z-index:2;display:flex;align-items:center;justify-content:space-between;gap:32px}
.cta-band h2{color:#fff;font-size:25px;margin-bottom:10px}
.cta-band p{color:rgba(255,255,255,.76);margin:0;font-size:15.5px}

/* ============ 页脚 ============ */
.site-footer{position:relative;background:var(--grad-ink);color:rgba(255,255,255,.78);padding:66px 0 28px;overflow:hidden}
.site-footer::before{content:"";position:absolute;top:0;left:0;right:0;height:1px;background:var(--grad-brand)}
.site-footer h4{color:#fff;font-size:16px;margin-bottom:16px}
.footer-brand{display:flex;align-items:center;gap:10px;color:#fff;font-size:17px;font-weight:800;margin-bottom:14px}
.footer-about{font-size:14px;line-height:1.8;color:rgba(255,255,255,.66);margin:0;max-width:340px}
.footer-links li{margin-bottom:10px}
.footer-links a{font-size:14.5px;color:rgba(255,255,255,.74)}
.footer-links a:hover{color:var(--lemon)}
.footer-meta{font-size:14px;line-height:1.8;color:rgba(255,255,255,.6);margin:0}
.footer-bottom{
  margin-top:44px;padding-top:22px;border-top:1px solid rgba(255,255,255,.12);
  display:flex;flex-wrap:wrap;justify-content:space-between;gap:10px;font-size:13px;color:rgba(255,255,255,.5)
}

/* ============ 响应式 ============ */
@media (max-width:1199px){
  .hero-band h1{font-size:38px}
  .tl-item{grid-template-columns:1fr 64px 1fr}
}
@media (max-width:991px){
  .nav-main,.nav-cta{display:none}
  .nav-toggle{display:flex}
  .section{padding:72px 0}
  .hero-band{padding:140px 0 72px}
  .hero-band h1{font-size:32px}
  .tl::before{left:18px;transform:none}
  .tl-item{grid-template-columns:1fr;gap:18px;padding-left:52px}
  .tl-node{grid-column:1;grid-row:1;justify-self:start;margin-left:-52px;width:44px;height:44px;font-size:15px}
  .tl-item:nth-child(odd) .tl-card,
  .tl-item:nth-child(even) .tl-card{grid-column:1;text-align:left}
  .tl-item:nth-child(odd) .tl-card .tag{margin-left:0}
  .tl-item:nth-child(odd) .tl-media,
  .tl-item:nth-child(even) .tl-media{grid-column:1;grid-row:auto}
  .compare{grid-template-columns:1fr}
}
@media (max-width:767px){
  .section{padding:56px 0}
  .shell{padding:0 18px}
  .nav-shell{margin:10px 12px 0;height:60px;padding:0 10px 0 14px}
  .nav-fixed.is-scrolled .nav-shell{height:54px}
  .brand__name{font-size:14.5px}
  .hero-band{padding:118px 0 56px}
  .hero-band h1{font-size:28px}
  .hero-band__lead{font-size:15.5px}
  .hero-stats{grid-template-columns:1fr 1fr;gap:12px}
  .stat{padding:16px 16px 22px;border-radius:16px}
  .stat b{font-size:28px}
  .sec-head h2{font-size:23px}
  .tl-card{border-radius:16px;padding:24px}
  .tl-card h3{font-size:18px}
  .cmp-card{border-radius:16px}
  .btn-main,.btn-ghost{width:100%;justify-content:center}
  .cta-band .shell{flex-direction:column;align-items:flex-start}
  .cta-band h2{font-size:21px}
  .symptom-track{grid-auto-columns:78%}
  .faq .accordion-button{font-size:15.5px;padding:18px}
  .footer-bottom{flex-direction:column}
}
@media (prefers-reduced-motion:reduce){
  *{animation-duration:.001ms!important;transition-duration:.001ms!important}
  html{scroll-behavior:auto}
}