/* roulang page: index */
:root{
  --ink-900:#0A1113;
  --ink-800:#101A1D;
  --ink-700:#172326;
  --brand-500:#14C8A6;
  --brand-400:#37DCBB;
  --brand-700:#0B8F78;
  --accent-500:#FF7A45;
  --accent-300:#FFC46B;
  --paper-50:#F6F8F7;
  --paper-100:#EDF2F0;
  --line:#DCE5E2;
  --text-900:#0E1A1C;
  --text-700:#2B3B3C;
  --text-500:#5A6D6C;
  --text-inverse:#F2FAF8;
  --grad-brand:linear-gradient(135deg,#14C8A6 0%,#0FA9A8 55%,#FF7A45 130%);
  --r-xl:28px;
  --r-lg:24px;
  --r-md:20px;
  --r-sm:16px;
  --r-pill:999px;
  --sh-1:0 8px 24px rgba(10,17,19,.06);
  --sh-2:0 16px 36px rgba(10,17,19,.12);
  --sh-glow:0 0 0 1px rgba(20,200,166,.35),0 0 24px rgba(20,200,166,.18);
  --gap:24px;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:16.5px;
  line-height:1.8;
  color:var(--text-900);
  background:#fff;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{max-width:100%;height:auto;display:block;}
a{color:var(--brand-700);text-decoration:none;transition:color .2s ease;}
a:hover{color:var(--brand-500);}
button{font-family:inherit;font-size:inherit;}
h1,h2,h3,h4{margin:0;font-weight:700;color:var(--text-900);line-height:1.3;}
p{margin:0;}
ul,ol{margin:0;padding:0;list-style:none;}
table{border-collapse:collapse;width:100%;}
a:focus-visible,button:focus-visible,input:focus-visible,textarea:focus-visible{outline:2px solid var(--brand-400);outline-offset:2px;border-radius:8px;}

.container{width:100%;max-width:1200px;margin:0 auto;padding:0 20px;}
@media (min-width:1440px){.container{max-width:1280px;}}

.section{padding:88px 0;}
@media (max-width:1023px){.section{padding:64px 0;}}
@media (max-width:639px){.section{padding:48px 0;}}

.section--paper{background:var(--paper-50);}
.section--ink{background:var(--ink-900);color:var(--text-inverse);}

.kicker{display:inline-block;font-size:13px;font-weight:600;letter-spacing:1.4px;color:var(--brand-700);margin-bottom:14px;}
.section--ink .kicker{color:var(--brand-400);}

.section-head{max-width:720px;margin-bottom:34px;}
.section-head h2{font-size:clamp(24px,3vw,34px);line-height:1.28;}
.section-head p{margin-top:12px;font-size:16px;color:var(--text-500);}
.section--ink .section-head h2{color:#fff;}
.section--ink .section-head p{color:#9FB3B0;}

.section-head--row{display:flex;align-items:flex-end;justify-content:space-between;gap:28px;max-width:none;}
@media (max-width:767px){.section-head--row{flex-direction:column;align-items:flex-start;gap:14px;}}
.text-link{display:inline-flex;align-items:center;gap:6px;font-size:15px;font-weight:600;color:var(--brand-700);white-space:nowrap;min-height:44px;}
.text-link span{transition:transform .2s ease;}
.text-link:hover{color:var(--brand-500);}
.text-link:hover span{transform:translateX(4px);}

/* ---------- 导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:90;
  background:rgba(10,17,19,.88);
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
  transition:background .25s ease,box-shadow .25s ease;
}
.site-header::after{content:"";display:block;height:1px;background:var(--grad-brand);opacity:.6;}
.site-header.is-scrolled{background:rgba(10,17,19,.97);box-shadow:0 12px 34px rgba(0,0,0,.38);}
.nav-inner{display:flex;align-items:center;justify-content:space-between;gap:20px;height:74px;}
.brand{display:inline-flex;align-items:center;gap:11px;}
.brand-mark{
  width:34px;height:34px;border-radius:11px;flex:0 0 auto;
  background:var(--grad-brand);
  display:flex;align-items:center;justify-content:center;
  box-shadow:0 0 18px rgba(20,200,166,.45);
}
.brand-mark svg{width:20px;height:20px;display:block;}
.brand-name{font-size:17px;font-weight:700;color:var(--text-inverse);letter-spacing:.2px;white-space:nowrap;}
.brand-name em{font-style:normal;color:var(--brand-400);}
.brand:hover .brand-name{color:#fff;}

.nav-links{display:flex;align-items:center;gap:4px;}
.nav-links a{
  position:relative;display:inline-flex;align-items:center;height:74px;
  padding:0 15px;font-size:15px;color:#C2D3D0;
  transition:color .2s ease;
}
.nav-links a:hover{color:#fff;}
.nav-links a.is-active{color:var(--brand-400);text-shadow:0 0 12px rgba(55,220,187,.6);}
.nav-links a.is-active::after{
  content:"";position:absolute;left:15px;right:15px;bottom:16px;height:2px;border-radius:2px;
  background:var(--brand-400);box-shadow:0 0 10px rgba(55,220,187,.9);
}
.nav-actions{display:flex;align-items:center;gap:12px;}
.nav-toggle{
  display:none;width:44px;height:44px;border-radius:12px;
  border:1px solid rgba(255,255,255,.18);background:rgba(255,255,255,.05);
  align-items:center;justify-content:center;flex-direction:column;gap:5px;cursor:pointer;
  transition:border-color .2s ease,background .2s ease;
}
.nav-toggle:hover{border-color:rgba(20,200,166,.6);background:rgba(20,200,166,.1);}
.nav-toggle span{display:block;width:18px;height:2px;background:#D6E4E1;border-radius:2px;}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:46px;padding:0 26px;border-radius:var(--r-pill);
  font-size:15px;font-weight:600;border:1px solid transparent;cursor:pointer;
  transition:transform .2s ease,box-shadow .25s ease,background .25s ease,color .2s ease,border-color .2s ease;
}
.btn-primary{background:var(--grad-brand);color:#08110F;box-shadow:0 10px 26px rgba(20,200,166,.3);}
.btn-primary:hover{color:#08110F;transform:translateY(-2px);box-shadow:0 16px 34px rgba(20,200,166,.4);}
.btn-primary:active{transform:translateY(1px);box-shadow:0 6px 16px rgba(20,200,166,.28);}
.btn-ghost{border-color:rgba(255,255,255,.32);color:var(--text-inverse);background:transparent;}
.btn-ghost:hover{color:#fff;border-color:var(--brand-400);background:rgba(20,200,166,.1);transform:translateY(-2px);}
.btn-ghost-dark{border-color:rgba(20,200,166,.5);color:var(--brand-700);background:transparent;}
.btn-ghost-dark:hover{color:#fff;background:var(--brand-700);border-color:var(--brand-700);transform:translateY(-2px);}
.btn-sm{min-height:40px;padding:0 18px;font-size:14px;}
.btn-block{width:100%;}

/* ---------- Hero ---------- */
.hero{position:relative;overflow:hidden;background:var(--ink-900);color:var(--text-inverse);padding:74px 0 112px;}
.hero-bg{position:absolute;inset:0;background:url('/assets/images/backpic/back-1.webp') center/cover no-repeat;opacity:.38;}
.hero-bg::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(10,17,19,.34) 0%,rgba(10,17,19,.84) 58%,var(--ink-900) 100%);}
.hero-glow{position:absolute;inset:0;pointer-events:none;background:
  radial-gradient(760px 430px at 14% 6%,rgba(20,200,166,.24),transparent 62%),
  radial-gradient(620px 420px at 88% 80%,rgba(255,122,69,.16),transparent 64%);}
.hero-inner{position:relative;z-index:2;display:grid;grid-template-columns:1.05fr .95fr;gap:56px;align-items:center;}
@media (max-width:1023px){.hero-inner{grid-template-columns:1fr;gap:44px;}}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;padding:7px 16px;border-radius:var(--r-pill);
  border:1px solid rgba(20,200,166,.42);background:rgba(20,200,166,.1);
  color:var(--brand-400);font-size:13px;letter-spacing:.4px;
}
.hero h1{margin-top:22px;font-size:clamp(30px,4.4vw,48px);line-height:1.22;font-weight:700;color:#fff;letter-spacing:-.4px;}
.hero h1 span{background:var(--grad-brand);-webkit-background-clip:text;background-clip:text;color:transparent;}
.hero-sub{margin-top:18px;font-size:17px;line-height:1.78;color:#B9CCC9;max-width:560px;}
.hero-cta{margin-top:32px;display:flex;flex-wrap:wrap;gap:14px;}
.trust-row{margin-top:28px;display:flex;flex-wrap:wrap;gap:10px 22px;}
.trust-row li{display:inline-flex;align-items:center;gap:8px;font-size:13.5px;color:#93A9A6;}
.trust-row li::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--brand-400);box-shadow:0 0 8px rgba(55,220,187,.9);flex:0 0 auto;}

.hero-visual{position:relative;}
.hero-visual img{
  width:100%;border-radius:26px;
  border:1px solid rgba(20,200,166,.35);
  box-shadow:0 0 0 1px rgba(20,200,166,.18),0 0 46px rgba(20,200,166,.16);
}
.hero-badges{position:absolute;left:24px;bottom:-30px;display:flex;gap:12px;flex-wrap:wrap;}
.stat{
  background:rgba(10,17,19,.88);border:1px solid rgba(20,200,166,.4);
  border-radius:var(--r-pill);padding:10px 18px;
  backdrop-filter:blur(8px);-webkit-backdrop-filter:blur(8px);
}
.stat b{display:block;font-size:22px;font-weight:800;line-height:1.15;color:var(--brand-400);font-variant-numeric:tabular-nums;}
.stat span{display:block;font-size:12.5px;color:#95ABA8;margin-top:2px;}

@media (max-width:639px){
  .hero{padding:52px 0 60px;}
  .hero-badges{position:static;margin-top:22px;display:grid;grid-template-columns:1fr 1fr;gap:10px;}
  .stat{border-radius:var(--r-sm);padding:12px 14px;}
  .stat b{font-size:20px;}
}

/* ---------- 三步上手 ---------- */
.steps-wrap{position:relative;}
.steps{position:relative;display:grid;grid-template-columns:repeat(3,1fr);gap:28px;}
.steps::before{
  content:"";position:absolute;top:66px;left:6%;right:6%;height:2px;z-index:0;
  background:linear-gradient(90deg,rgba(20,200,166,0) 0%,rgba(20,200,166,.75) 22%,rgba(255,122,69,.6) 70%,rgba(20,200,166,0) 100%);
}
.step{
  position:relative;z-index:1;background:#fff;border:1px solid var(--line);
  border-radius:var(--r-lg);padding:30px 26px;box-shadow:var(--sh-1);
  transition:transform .25s ease,box-shadow .25s ease,border-color .25s ease;
}
.step:hover{transform:translateY(-4px);box-shadow:var(--sh-2);border-color:rgba(20,200,166,.45);}
.step:nth-child(2){margin-top:-16px;}
.step:nth-child(2):hover{transform:translateY(-20px);}
.step-num{
  width:54px;height:54px;border-radius:50%;display:flex;align-items:center;justify-content:center;
  font-size:18px;font-weight:800;color:var(--brand-400);background:var(--ink-900);
  border:2px solid rgba(20,200,166,.55);
  box-shadow:0 0 0 6px rgba(20,200,166,.08);
  font-variant-numeric:tabular-nums;
}
.step h3{margin-top:22px;font-size:20px;line-height:1.4;}
.step p{margin-top:10px;font-size:15px;line-height:1.78;color:var(--text-500);}
.step-icon{margin-top:18px;display:inline-flex;align-items:center;gap:8px;font-size:13px;color:var(--brand-700);}
.step-icon::before{content:"";width:22px;height:22px;border-radius:7px;background:rgba(20,200,166,.14);border:1px solid rgba(20,200,166,.3);}
@media (max-width:1023px){
  .steps{grid-template-columns:1fr;gap:18px;padding-left:36px;}
  .steps::before{
    top:12px;bottom:12px;left:13px;right:auto;width:2px;height:auto;
    background:linear-gradient(180deg,rgba(20,200,166,.06) 0%,rgba(20,200,166,.78) 40%,rgba(255,122,69,.55) 78%,rgba(20,200,166,.05) 100%);
  }
  .step:nth-child(2){margin-top:0;}
  .step:nth-child(2):hover{transform:translateY(-4px);}
}

/* ---------- 渠道特点 ---------- */
.feature-grid{display:grid;grid-template-columns:1.32fr 1fr;grid-template-rows:auto auto;gap:24px;}
.feature-wide{grid-row:span 2;display:flex;flex-direction:column;overflow:hidden;border-radius:var(--r-lg);border:1px solid var(--line);background:#fff;box-shadow:var(--sh-1);transition:box-shadow .25s ease,border-color .25s ease,transform .25s ease;}
.feature-wide:hover{transform:translateY(-4px);box-shadow:var(--sh-2);border-color:rgba(20,200,166,.4);}
.feature-wide img{width:100%;aspect-ratio:16/10;object-fit:cover;}
.feature-body{padding:28px;}
.feature-body h3{font-size:21px;}
.feature-body p{margin-top:12px;font-size:15.5px;line-height:1.8;color:var(--text-500);}
.feature-mini{
  border-radius:var(--r-md);border:1px solid var(--line);background:#fff;padding:26px;
  box-shadow:var(--sh-1);transition:box-shadow .25s ease,border-color .25s ease,transform .25s ease;
}
.feature-mini:hover{transform:translateY(-4px);box-shadow:var(--sh-2);border-color:rgba(20,200,166,.4);}
.feature-mini h3{font-size:18px;}
.feature-mini p{margin-top:10px;font-size:15px;line-height:1.78;color:var(--text-500);}
@media (max-width:1023px){
  .feature-grid{grid-template-columns:1fr;}
  .feature-wide{grid-row:auto;}
}

/* ---------- 案例证明 ---------- */
.proof{display:grid;grid-template-columns:1fr 1fr;gap:48px;align-items:center;}
@media (max-width:1023px){.proof{grid-template-columns:1fr;gap:32px;}}
.proof-media img{border-radius:var(--r-md);box-shadow:var(--sh-2);width:100%;aspect-ratio:16/10;object-fit:cover;}
.proof-text h2{font-size:clamp(24px,3vw,32px);line-height:1.3;}
.proof-text p{margin-top:16px;font-size:16px;line-height:1.85;color:var(--text-500);}
.proof-stats{display:flex;flex-wrap:wrap;gap:14px;margin-top:26px;}
.proof-stats .stat{background:var(--ink-800);border-color:rgba(20,200,166,.35);}

.case-list{margin-top:48px;display:flex;flex-direction:column;gap:12px;}
.case-row{
  display:flex;align-items:center;gap:18px;padding:18px 24px;
  border:1px solid var(--line);border-radius:var(--r-sm);background:var(--paper-50);
  transition:background .22s ease,border-color .22s ease,transform .22s ease;
}
.case-row:hover{background:rgba(20,200,166,.09);border-color:rgba(20,200,166,.42);transform:translateX(4px);color:var(--text-700);}
.case-tag{
  flex:0 0 auto;font-size:12.5px;font-weight:600;padding:5px 13px;border-radius:var(--r-pill);
  background:rgba(20,200,166,.13);color:var(--brand-700);border:1px solid rgba(20,200,166,.28);
}
.case-row p{flex:1;font-size:15px;color:var(--text-700);min-width:0;}
.case-arrow{color:var(--brand-500);font-weight:700;transition:transform .22s ease;flex:0 0 auto;}
.case-row:hover .case-arrow{transform:translateX(4px);}
@media (max-width:639px){
  .case-row{flex-wrap:wrap;gap:10px;padding:16px 18px;}
  .case-row p{flex:1 0 100%;}
}

/* ---------- FAQ ---------- */
.faq-layout{display:grid;grid-template-columns:.72fr 1.28fr;gap:52px;align-items:start;}
@media (max-width:1023px){.faq-layout{grid-template-columns:1fr;gap:28px;}}
.faq-intro{position:sticky;top:110px;}
@media (max-width:1023px){.faq-intro{position:static;}}
.faq-intro h2{font-size:clamp(24px,3vw,32px);line-height:1.3;}
.faq-intro p{margin-top:14px;font-size:15.5px;line-height:1.85;color:var(--text-500);}
.faq-item{
  background:var(--paper-50);border:1px solid var(--line);border-radius:var(--r-sm);
  margin-bottom:14px;overflow:hidden;
  transition:border-color .22s ease,box-shadow .22s ease,background .22s ease;
}
.faq-item:hover{border-color:rgba(20,200,166,.4);}
.faq-item.is-open{background:#fff;border-color:rgba(20,200,166,.5);box-shadow:inset 3px 0 0 var(--brand-500),0 10px 26px rgba(20,200,166,.1);}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:19px 24px;background:none;border:0;text-align:left;cursor:pointer;
  font-size:16.5px;font-weight:600;color:var(--text-900);min-height:44px;
}
.faq-q svg{flex:0 0 auto;color:var(--brand-500);transition:transform .25s ease;}
.faq-item.is-open .faq-q svg{transform:rotate(180deg);}
.faq-a{max-height:0;overflow:hidden;transition:max-height .3s ease;}
.faq-a-inner{padding:0 24px 22px;font-size:15px;line-height:1.85;color:var(--text-500);}
.faq-item.is-open .faq-a{max-height:400px;}

/* ---------- 最新信息 ---------- */
.news-layout{display:grid;grid-template-columns:1.28fr 1fr;gap:24px;align-items:start;}
@media (max-width:1023px){.news-layout{grid-template-columns:1fr;}}
.news-side{display:flex;flex-direction:column;gap:16px;}
.news-card{
  display:block;background:#fff;border:1px solid var(--line);border-radius:var(--r-md);
  overflow:hidden;box-shadow:var(--sh-1);color:inherit;
  transition:transform .25s ease,box-shadow .25s ease,border-color .25s ease;
}
.news-card:hover{transform:translateY(-4px);box-shadow:var(--sh-2);border-color:rgba(20,200,166,.42);color:inherit;}
.news-card:hover .news-title{color:var(--brand-700);}
.news-card:hover .news-arrow{transform:translateX(4px);}
.news-thumb{overflow:hidden;}
.news-thumb img{width:100%;aspect-ratio:16/9;object-fit:cover;transition:transform .4s ease;}
.news-card:hover .news-thumb img{transform:scale(1.03);}
.news-body{padding:26px;}
.news-card--mini{padding:22px 24px;}
.news-tag{
  display:inline-block;font-size:12.5px;font-weight:600;padding:4px 12px;border-radius:var(--r-pill);
  background:rgba(20,200,166,.12);color:var(--brand-700);border:1px solid rgba(20,200,166,.26);
}
.news-title{margin-top:14px;font-size:19px;line-height:1.45;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;transition:color .2s ease;}
.news-card--mini .news-title{font-size:16.5px;}
.news-excerpt{margin-top:10px;font-size:14.5px;line-height:1.75;color:var(--text-500);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.news-meta{margin-top:16px;display:flex;align-items:center;justify-content:space-between;font-size:13px;color:var(--text-500);font-variant-numeric:tabular-nums;}
.news-arrow{color:var(--brand-500);font-weight:700;transition:transform .22s ease;}
.news-empty{
  min-height:200px;border:1px dashed var(--line);border-radius:var(--r-lg);background:var(--paper-50);
  display:flex;flex-direction:column;align-items:center;justify-content:center;gap:14px;padding:40px 24px;text-align:center;
}
.news-empty-icon{
  width:56px;height:56px;border-radius:50%;display:flex;align-items:center;justify-content:center;
  font-size:24px;color:var(--brand-700);background:rgba(20,200,166,.12);border:1px solid rgba(20,200,166,.3);
}
.news-empty p{font-size:15.5px;color:var(--text-500);}

/* ---------- CTA 大卡 ---------- */
.cta-card{
  position:relative;overflow:hidden;border-radius:var(--r-xl);
  padding:52px 56px;display:flex;align-items:center;justify-content:space-between;gap:40px;
  border:1px solid transparent;
  background-image:linear-gradient(var(--ink-900),var(--ink-900)),var(--grad-brand);
  background-origin:border-box;
  background-clip:padding-box,border-box;
}
.cta-card::after{
  content:"";position:absolute;inset:0;pointer-events:none;
  background:radial-gradient(520px 320px at 12% 20%,rgba(20,200,166,.24),transparent 62%),
             radial-gradient(460px 300px at 92% 88%,rgba(255,122,69,.18),transparent 64%);
}
.cta-text{position:relative;z-index:2;max-width:640px;}
.cta-text h2{color:#fff;font-size:clamp(22px,2.8vw,30px);line-height:1.32;}
.cta-text p{margin-top:14px;font-size:15.5px;line-height:1.8;color:#A9BEBB;}
.cta-actions{position:relative;z-index:2;display:flex;flex-direction:column;align-items:flex-end;gap:12px;flex:0 0 auto;}
.cta-note{font-size:13px;color:#829894;}
@media (max-width:900px){
  .cta-card{flex-direction:column;align-items:flex-start;padding:38px 26px;}
  .cta-actions{align-items:flex-start;width:100%;}
  .cta-actions .btn{width:100%;}
}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--ink-900);color:#9FB3B0;padding:0 0 0;position:relative;}
.site-footer::before{content:"";display:block;height:1px;background:var(--grad-brand);opacity:.65;}
.footer-main{padding:64px 0 44px;}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.1fr;gap:40px;}
@media (max-width:1023px){.footer-grid{grid-template-columns:1fr 1fr;gap:32px;}}
@media (max-width:639px){.footer-grid{grid-template-columns:1fr;gap:30px;}}
.footer-brand{display:inline-flex;align-items:center;gap:11px;margin-bottom:16px;}
.footer-brand .brand-name{color:#fff;}
.footer-desc{font-size:14.5px;line-height:1.8;color:#8FA5A2;max-width:320px;}
.footer-col h4{font-size:15px;font-weight:600;color:#fff;margin-bottom:16px;}
.footer-col ul{display:flex;flex-direction:column;gap:10px;}
.footer-col a{font-size:14.5px;color:#9FB3B0;transition:color .2s ease;}
.footer-col a:hover{color:var(--brand-400);}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.08);
  padding:22px 0 26px;display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:13.5px;color:#7B908D;
}
.footer-bottom a{color:#7B908D;}
.footer-bottom a:hover{color:var(--brand-400);}

/* ---------- 弹层 ---------- */
.modal{position:fixed;inset:0;z-index:200;display:none;align-items:center;justify-content:center;padding:20px;}
.modal.is-open{display:flex;}
.modal-backdrop{position:absolute;inset:0;background:rgba(6,12,14,.75);backdrop-filter:blur(4px);}
.modal-panel{
  position:relative;z-index:2;width:100%;max-width:460px;max-height:90vh;overflow-y:auto;
  background:#fff;border-radius:var(--r-lg);padding:34px 32px;box-shadow:0 30px 70px rgba(0,0,0,.4);
}
.modal-panel h3{font-size:21px;}
.modal-desc{margin-top:10px;font-size:14.5px;color:var(--text-500);line-height:1.75;}
.modal-close{
  position:absolute;top:14px;right:14px;width:44px;height:44px;border-radius:12px;border:1px solid var(--line);
  background:var(--paper-50);color:var(--text-700);font-size:20px;line-height:1;cursor:pointer;
  transition:background .2s ease,color .2s ease;
}
.modal-close:hover{background:rgba(20,200,166,.12);color:var(--brand-700);}
.open-form{margin-top:22px;display:flex;flex-direction:column;gap:8px;}
.open-form label{font-size:13.5px;font-weight:600;color:var(--text-700);margin-top:8px;}
.open-form input,.open-form textarea{
  width:100%;border:1px solid var(--line);border-radius:12px;padding:12px 14px;
  font-size:15px;font-family:inherit;color:var(--text-900);background:#fff;
  transition:border-color .2s ease,box-shadow .2s ease;
}
.open-form input:focus,.open-form textarea:focus{
  outline:none;border-color:var(--brand-500);box-shadow:0 0 0 3px rgba(20,200,166,.12);
}
.open-form textarea{resize:vertical;}
.open-form .btn{margin-top:16px;}
.form-hint{font-size:12.5px;color:var(--text-500);margin-top:10px;line-height:1.7;}

/* roulang page: article */
:root{
  --ink-900:#0A1113;
  --ink-800:#101A1D;
  --ink-700:#172326;
  --brand-500:#14C8A6;
  --brand-400:#37DCBB;
  --brand-700:#0B8F78;
  --accent-500:#FF7A45;
  --accent-300:#FFC46B;
  --paper-50:#F6F8F7;
  --paper-100:#EDF2F0;
  --line:#DCE5E2;
  --text-900:#0E1A1C;
  --text-700:#2B3B3C;
  --text-500:#5A6D6C;
  --text-inverse:#F2FAF8;
  --grad-brand:linear-gradient(135deg,#14C8A6 0%,#0FA9A8 55%,#FF7A45 130%);
  --radius-xl:28px;
  --radius-lg:24px;
  --radius-md:20px;
  --radius-sm:12px;
  --radius-pill:999px;
  --shadow-1:0 8px 24px rgba(10,17,19,.06);
  --shadow-2:0 16px 36px rgba(10,17,19,.12);
  --glow:0 0 0 1px rgba(20,200,166,.35),0 0 24px rgba(20,200,166,.18);
  --container:1200px;
}

*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:16px;
  line-height:1.8;
  color:var(--text-700);
  background:var(--paper-50);
  font-feature-settings:"tnum";
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;height:auto;display:block}
a{color:var(--brand-700);text-decoration:none;transition:color .18s ease,border-color .18s ease}
a:hover{color:var(--brand-500);text-decoration:underline;text-underline-offset:3px}
button{font:inherit}
h1,h2,h3,h4{margin:0;color:var(--text-900);font-weight:700;line-height:1.3;letter-spacing:-.01em}
p{margin:0 0 1em}
ul,ol{margin:0 0 1em;padding-left:1.25em}
:focus-visible{outline:2px solid var(--brand-500);outline-offset:2px;border-radius:6px}

.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 20px}
@media (min-width:1024px){.container{padding:0 32px}}
@media (min-width:1440px){:root{--container:1280px}}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:46px;padding:0 26px;
  border-radius:var(--radius-pill);border:1px solid transparent;
  font-size:15px;font-weight:600;line-height:1;cursor:pointer;
  text-decoration:none;white-space:nowrap;
  transition:transform .18s ease,box-shadow .18s ease,background .18s ease,color .18s ease,border-color .18s ease;
}
.btn:hover{text-decoration:none}
.btn-primary{background:var(--grad-brand);color:#08110F;box-shadow:0 10px 24px rgba(20,200,166,.28)}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 16px 32px rgba(20,200,166,.36);color:#08110F}
.btn-primary:active{transform:translateY(1px);box-shadow:0 6px 16px rgba(20,200,166,.3)}
.btn-ghost{background:transparent;border-color:rgba(20,200,166,.5);color:#EAFBF6}
.btn-ghost:hover{background:rgba(20,200,166,.12);border-color:var(--brand-400);transform:translateY(-2px);color:#fff}
.btn-outline{background:#fff;border-color:var(--line);color:var(--text-900)}
.btn-outline:hover{border-color:var(--brand-500);color:var(--brand-700);transform:translateY(-2px);box-shadow:var(--shadow-1)}
.btn-sm{min-height:38px;padding:0 18px;font-size:14px}
.btn-block{width:100%}

/* ============ 顶栏导航 ============ */
.site-header{
  position:sticky;top:0;z-index:80;
  background:rgba(10,17,19,.94);
  backdrop-filter:saturate(140%) blur(10px);
  transition:box-shadow .25s ease,background .25s ease;
}
.site-header::after{
  content:"";display:block;height:1px;
  background:var(--grad-brand);opacity:.55;
}
.site-header.is-scrolled{box-shadow:0 10px 30px rgba(0,0,0,.35);background:rgba(10,17,19,.98)}
.nav-inner{display:flex;align-items:center;justify-content:space-between;gap:20px;min-height:74px}
.brand{display:flex;align-items:center;gap:12px;text-decoration:none}
.brand:hover{text-decoration:none}
.brand-mark{
  width:38px;height:38px;flex:0 0 38px;border-radius:12px;
  background:var(--grad-brand);display:grid;place-items:center;
  box-shadow:0 0 18px rgba(20,200,166,.35);
}
.brand-mark svg{width:22px;height:22px}
.brand-name{font-size:19px;font-weight:700;color:var(--text-inverse);letter-spacing:.01em;white-space:nowrap}
.brand-name em{font-style:normal;color:var(--brand-400)}

.nav-links{display:flex;align-items:center;gap:6px}
.nav-links a{
  position:relative;display:inline-flex;align-items:center;
  min-height:44px;padding:0 15px;border-radius:10px;
  color:#C4D5D1;font-size:15px;text-decoration:none;
  transition:color .18s ease,background .18s ease;
}
.nav-links a:hover{color:#fff;background:rgba(20,200,166,.09);text-decoration:none}
.nav-links a.is-active{color:var(--brand-400);text-shadow:0 0 12px rgba(20,200,166,.45)}
.nav-links a.is-active::after{
  content:"";position:absolute;left:15px;right:15px;bottom:6px;height:2px;border-radius:2px;
  background:var(--grad-brand);box-shadow:0 0 10px rgba(20,200,166,.7);
}
.nav-actions{display:flex;align-items:center;gap:12px}
.nav-toggle{
  display:none;width:44px;height:44px;border-radius:12px;
  background:rgba(20,200,166,.1);border:1px solid rgba(20,200,166,.3);
  cursor:pointer;padding:0;place-items:center;
}
.nav-toggle span{display:block;width:18px;height:2px;margin:3px auto;border-radius:2px;background:#DDF5EF;transition:.2s}
.nav-toggle[aria-expanded="true"] span:nth-child(1){transform:translateY(5px) rotate(45deg)}
.nav-toggle[aria-expanded="true"] span:nth-child(2){opacity:0}
.nav-toggle[aria-expanded="true"] span:nth-child(3){transform:translateY(-5px) rotate(-45deg)}

/* ============ 面包屑 ============ */
.breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:10px;font-size:13.5px;line-height:1.6}
.breadcrumb a,.breadcrumb span{color:rgba(242,250,248,.68)}
.breadcrumb a{text-decoration:none}
.breadcrumb a:hover{color:var(--brand-400);text-decoration:none}
.breadcrumb .sep{opacity:.45}
.breadcrumb .current{color:var(--brand-400);max-width:100%;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}

/* ============ 文章头部深色区 ============ */
.article-top{position:relative;overflow:hidden;background:var(--ink-900);padding:34px 0 78px}
.article-top::before{
  content:"";position:absolute;inset:0;
  background-image:url('/assets/images/backpic/back-1.webp');
  background-size:cover;background-position:center;
  opacity:.13;
  -webkit-mask-image:linear-gradient(180deg,rgba(0,0,0,.9),rgba(0,0,0,0));
  mask-image:linear-gradient(180deg,rgba(0,0,0,.9),rgba(0,0,0,0));
}
.article-top::after{
  content:"";position:absolute;right:-140px;top:-220px;width:560px;height:560px;
  background:radial-gradient(circle,rgba(20,200,166,.32) 0%,rgba(20,200,166,0) 65%);
  pointer-events:none;
}
.article-top .container{position:relative;z-index:2}
.article-head{margin-top:26px;max-width:920px}
.article-head h1{
  color:var(--text-inverse);
  font-size:clamp(26px,3.8vw,42px);
  line-height:1.26;font-weight:700;
}
.article-meta{display:flex;flex-wrap:wrap;align-items:center;gap:12px;margin-top:20px;font-size:13.5px;color:rgba(242,250,248,.72)}
.meta-chip{
  display:inline-flex;align-items:center;gap:6px;
  padding:5px 13px;border-radius:var(--radius-pill);
  background:rgba(20,200,166,.13);border:1px solid rgba(20,200,166,.38);
  color:var(--brand-400);font-size:13px;font-weight:600;
}
.meta-dot{width:4px;height:4px;border-radius:50%;background:rgba(242,250,248,.35)}

/* ============ 正文卡片 ============ */
.article-section{padding:0 0 24px}
.article-card{
  position:relative;z-index:3;
  margin-top:-48px;background:#fff;
  border:1px solid var(--line);border-radius:var(--radius-lg);
  box-shadow:var(--shadow-2);
  padding:34px 22px 38px;
}
@media (min-width:1024px){.article-card{padding:52px 56px 56px}}
.article-body{max-width:800px;margin:0 auto;font-size:16.5px;line-height:1.92;color:var(--text-700)}
.article-body p{margin:0 0 20px}
.article-body h2{
  position:relative;margin:46px 0 18px;padding-left:16px;
  font-size:clamp(21px,2.4vw,26px);line-height:1.4;color:var(--text-900);
}
.article-body h2::before{
  content:"";position:absolute;left:0;top:.2em;bottom:.2em;width:4px;border-radius:4px;background:var(--grad-brand);
}
.article-body h3{margin:32px 0 14px;font-size:20px;font-weight:600;color:var(--text-900)}
.article-body h4{margin:24px 0 12px;font-size:17px;font-weight:600;color:var(--text-900)}
.article-body ul,.article-body ol{margin:0 0 20px;padding-left:22px}
.article-body li{margin-bottom:10px}
.article-body ul li::marker{color:var(--brand-500)}
.article-body ol li::marker{color:var(--brand-700);font-weight:600}
.article-body blockquote{
  margin:24px 0;padding:18px 22px;background:var(--paper-100);
  border-left:4px solid var(--brand-500);border-radius:0 16px 16px 0;
  color:var(--text-700);
}
.article-body blockquote p:last-child{margin-bottom:0}
.article-body img{border-radius:16px;margin:24px auto;box-shadow:var(--shadow-1)}
.article-body figure{margin:26px 0}
.article-body figcaption{margin-top:10px;text-align:center;font-size:13px;color:var(--text-500)}
.article-body a{color:var(--brand-700);border-bottom:1px solid rgba(20,200,166,.4)}
.article-body a:hover{color:var(--brand-500);border-bottom-color:var(--brand-500);text-decoration:none}
.article-body pre{
  margin:24px 0;padding:18px 20px;background:var(--ink-900);color:#DDF5EF;
  border-radius:16px;overflow-x:auto;font-size:14px;line-height:1.7;
}
.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(--paper-100);color:var(--brand-700);border-radius:6px;padding:2px 6px}
.article-body table{
  display:block;width:100%;margin:24px 0;border-collapse:collapse;
  font-size:15px;overflow-x:auto;-webkit-overflow-scrolling:touch;
}
.article-body th{background:var(--paper-100);text-align:left;font-weight:600;color:var(--text-900)}
.article-body th,.article-body td{padding:12px 16px;border-bottom:1px solid var(--line)}
.article-body tbody tr:nth-child(even){background:rgba(237,242,240,.5)}
.article-body hr{border:0;height:1px;background:var(--line);margin:36px 0}

.article-foot{max-width:800px;margin:40px auto 0;padding-top:26px;border-top:1px solid var(--line);display:flex;flex-wrap:wrap;gap:12px;align-items:center;justify-content:space-between}
.foot-tags{display:flex;flex-wrap:wrap;gap:10px}
.tag{
  display:inline-flex;align-items:center;padding:6px 14px;border-radius:var(--radius-pill);
  background:var(--paper-100);border:1px solid var(--line);
  color:var(--text-700);font-size:13px;
}
.foot-links{display:flex;flex-wrap:wrap;gap:18px;font-size:13.5px}

/* ============ 内容未找到空态 ============ */
.empty-state{
  display:flex;flex-direction:column;align-items:center;justify-content:center;
  min-height:280px;padding:40px 20px;text-align:center;gap:14px;
}
.empty-icon{
  width:64px;height:64px;border-radius:20px;display:grid;place-items:center;
  background:var(--paper-100);border:1px solid var(--line);color:var(--brand-700);
}
.empty-icon svg{width:28px;height:28px}
.empty-state h2{font-size:20px;color:var(--text-900)}
.empty-state p{margin:0;color:var(--text-500);font-size:14.5px}

/* ============ 通用板块 ============ */
.section{padding:64px 0}
@media (min-width:1024px){.section{padding:88px 0}}
.section-head{display:flex;flex-wrap:wrap;align-items:flex-end;justify-content:space-between;gap:16px;margin-bottom:32px}
.section-head h2{font-size:clamp(22px,2.8vw,32px)}
.section-head p{margin:10px 0 0;color:var(--text-500);font-size:15px;max-width:640px}
.text-link{font-size:14px;font-weight:600;color:var(--brand-700);display:inline-flex;align-items:center;gap:6px}
.text-link:hover{color:var(--brand-500);text-decoration:none}
.text-link .arrow{transition:transform .2s ease}
.text-link:hover .arrow{transform:translateX(4px)}

/* ============ 相关推荐卡 ============ */
.related-grid{display:grid;gap:20px;grid-template-columns:1fr}
@media (min-width:640px){.related-grid{grid-template-columns:repeat(3,1fr)}}
.rec-card{
  display:flex;flex-direction:column;overflow:hidden;
  background:#fff;border:1px solid var(--line);border-radius:var(--radius-md);
  box-shadow:var(--shadow-1);text-decoration:none;
  transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.rec-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-2);border-color:rgba(20,200,166,.45);text-decoration:none}
.rec-thumb{position:relative;aspect-ratio:16/9;overflow:hidden;background:var(--ink-800)}
.rec-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .35s ease}
.rec-card:hover .rec-thumb img{transform:scale(1.04)}
.rec-body{padding:20px 22px 22px;display:flex;flex-direction:column;gap:10px;flex:1}
.rec-tag{align-self:flex-start;padding:4px 12px;border-radius:var(--radius-pill);background:rgba(20,200,166,.12);border:1px solid rgba(20,200,166,.32);color:var(--brand-700);font-size:12.5px;font-weight:600}
.rec-title{font-size:17px;line-height:1.45;color:var(--text-900);font-weight:700;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.rec-card:hover .rec-title{color:var(--brand-700)}
.rec-desc{font-size:14px;line-height:1.7;color:var(--text-500);margin:0;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.rec-meta{margin-top:auto;display:flex;align-items:center;justify-content:space-between;font-size:13px;color:var(--text-500)}
.rec-meta .arrow{color:var(--brand-700);transition:transform .2s ease}
.rec-card:hover .rec-meta .arrow{transform:translateX(4px)}

/* ============ CTA 条 ============ */
.cta-strip{
  position:relative;overflow:hidden;
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:26px;
  padding:34px 28px;border-radius:var(--radius-xl);
  background:var(--ink-900);
  border:1px solid transparent;
  background-image:linear-gradient(var(--ink-900),var(--ink-900)),var(--grad-brand);
  background-origin:border-box;background-clip:padding-box,border-box;
  box-shadow:0 24px 48px rgba(10,17,19,.22);
}
.cta-strip::after{
  content:"";position:absolute;right:-120px;bottom:-160px;width:380px;height:380px;
  background:radial-gradient(circle,rgba(20,200,166,.28) 0%,rgba(20,200,166,0) 68%);
  pointer-events:none;
}
.cta-copy{position:relative;z-index:2;max-width:560px}
.cta-copy h2{color:var(--text-inverse);font-size:clamp(21px,2.6vw,28px)}
.cta-copy p{margin:10px 0 0;color:rgba(242,250,248,.75);font-size:15px}
.cta-action{position:relative;z-index:2;display:flex;flex-direction:column;align-items:flex-start;gap:10px}
.cta-note{font-size:13px;color:rgba(242,250,248,.6)}
@media (min-width:1024px){.cta-strip{padding:42px 46px}.cta-action{align-items:flex-end;text-align:right}}

/* ============ 页脚 ============ */
.site-footer{position:relative;background:var(--ink-900);color:rgba(242,250,248,.72);margin-top:24px}
.site-footer::before{content:"";display:block;height:1px;background:var(--grad-brand);opacity:.6}
.footer-main{padding:60px 0 40px}
.footer-grid{display:grid;gap:36px;grid-template-columns:1fr}
@media (min-width:640px){.footer-grid{grid-template-columns:repeat(2,1fr)}}
@media (min-width:1024px){.footer-grid{grid-template-columns:1.4fr 1fr 1fr 1fr}}
.footer-brand{display:flex;align-items:center;gap:12px;margin-bottom:16px}
.footer-desc{margin:0;font-size:14px;line-height:1.8;color:rgba(242,250,248,.62);max-width:280px}
.footer-col h4{color:var(--text-inverse);font-size:15px;margin-bottom:16px;font-weight:600}
.footer-col ul{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:10px}
.footer-col a{color:rgba(242,250,248,.68);font-size:14px;text-decoration:none}
.footer-col a:hover{color:var(--brand-400);text-decoration:none}
.footer-bottom{
  display:flex;flex-wrap:wrap;gap:12px;align-items:center;justify-content:space-between;
  padding:20px 0 30px;border-top:1px solid rgba(242,250,248,.1);
  font-size:13px;color:rgba(242,250,248,.55);
}

/* ============ 弹层 ============ */
.modal-shell{position:fixed;inset:0;z-index:120;display:none}
.modal-shell.is-open{display:block}
.modal-backdrop{position:absolute;inset:0;background:rgba(6,12,13,.68);backdrop-filter:blur(3px)}
.modal-card{
  position:relative;z-index:2;width:min(460px,calc(100% - 32px));
  margin:12vh auto 0;background:#fff;border-radius:var(--radius-lg);
  padding:30px 26px 28px;box-shadow:0 30px 70px rgba(0,0,0,.4);
  border:1px solid var(--line);
}
.modal-card h3{font-size:21px;margin-bottom:8px}
.modal-card > p{margin:0 0 20px;font-size:14.5px;color:var(--text-500)}
.modal-close{
  position:absolute;right:14px;top:14px;width:36px;height:36px;border-radius:10px;
  border:1px solid var(--line);background:#fff;color:var(--text-500);
  font-size:18px;line-height:1;cursor:pointer;transition:.18s;
}
.modal-close:hover{border-color:var(--brand-500);color:var(--brand-700)}
.modal-form{display:flex;flex-direction:column;gap:8px}
.modal-form label{font-size:13.5px;font-weight:600;color:var(--text-900)}
.modal-form input{
  width:100%;min-height:46px;padding:0 14px;font-size:15px;color:var(--text-900);
  background:var(--paper-50);border:1px solid var(--line);border-radius:var(--radius-sm);
  transition:border-color .18s ease,box-shadow .18s ease,background .18s ease;
}
.modal-form input::placeholder{color:#93A3A1}
.modal-form input:focus{
  outline:none;border-color:var(--brand-500);background:#fff;
  box-shadow:0 0 0 3px rgba(20,200,166,.14);
}
.modal-form .btn{margin-top:10px}
.form-hint{margin:6px 0 0;font-size:12.5px;color:var(--text-500);line-height:1.6}
.form-error{margin:4px 0 0;font-size:12.5px;color:#D64545;min-height:16px}

/* ============ 移动端导航 ============ */
@media (max-width:1023.98px){
  .nav-toggle{display:grid}
  .nav-links{
    position:absolute;left:16px;right:16px;top:calc(100% + 10px);
    flex-direction:column;align-items:stretch;gap:4px;
    background:var(--ink-800);border:1px solid rgba(20,200,166,.22);
    border-radius:18px;padding:10px;display:none;
    box-shadow:0 26px 54px rgba(0,0,0,.45);
  }
  .nav-links.is-open{display:flex}
  .nav-links a{min-height:46px;padding:0 16px;border-radius:12px;font-size:15px}
  .nav-links a.is-active{background:rgba(20,200,166,.12)}
  .nav-links a.is-active::after{display:none}
}
@media (max-width:639.98px){
  .brand-name{font-size:17px}
  .nav-actions .btn-sm{padding:0 14px;font-size:13.5px}
  .article-top{padding:24px 0 70px}
  .article-card{margin-top:-40px;border-radius:20px}
  .article-body{font-size:16px;line-height:1.9}
  .cta-strip{padding:28px 20px;border-radius:22px}
  .cta-action{width:100%}
  .cta-action .btn{width:100%}
  .footer-bottom{flex-direction:column;align-items:flex-start;gap:8px}
}

/* roulang page: category1 */
:root{
  --ink-900:#0A1113;
  --ink-800:#101A1D;
  --ink-700:#172326;
  --brand-500:#14C8A6;
  --brand-400:#37DCBB;
  --brand-700:#0B8F78;
  --accent-500:#FF7A45;
  --accent-300:#FFC46B;
  --paper-50:#F6F8F7;
  --paper-100:#EDF2F0;
  --line:#DCE5E2;
  --text-900:#0E1A1C;
  --text-700:#2B3B3C;
  --text-500:#5A6D6C;
  --text-inverse:#F2FAF8;
  --grad-brand:linear-gradient(135deg,#14C8A6 0%,#0FA9A8 55%,#FF7A45 130%);
  --grad-line:linear-gradient(90deg,rgba(20,200,166,0),rgba(20,200,166,.65),rgba(255,122,69,.5),rgba(255,122,69,0));
  --r-xl:28px;
  --r-lg:24px;
  --r-md:20px;
  --r-sm:12px;
  --r-pill:999px;
  --shadow-1:0 8px 24px rgba(10,17,19,.06);
  --shadow-2:0 16px 36px rgba(10,17,19,.12);
  --glow:0 0 0 1px rgba(20,200,166,.35),0 0 24px rgba(20,200,166,.18);
  --sec-y:96px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  background:var(--paper-50);
  color:var(--text-900);
  font-family:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:16px;
  line-height:1.8;
  font-variant-numeric:tabular-nums;
  -webkit-font-smoothing:antialiased;
}
img,svg{display:block;max-width:100%}
a{color:var(--brand-700);text-decoration:none;transition:color .2s ease,background-color .2s ease,border-color .2s ease,box-shadow .2s ease,transform .2s ease}
a:hover{color:var(--brand-500)}
button{font:inherit;cursor:pointer}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4,p,figure{margin:0}
h1{font-size:clamp(30px,4.4vw,48px);line-height:1.22;font-weight:700;letter-spacing:-.01em}
h2{font-size:clamp(24px,3vw,34px);line-height:1.28;font-weight:700}
h3{font-size:20px;line-height:1.35;font-weight:600}
h4{font-size:16px;line-height:1.4;font-weight:600}
p{color:var(--text-700)}
:focus-visible{outline:2px solid var(--brand-500);outline-offset:2px;border-radius:8px}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 20px}
@media (min-width:1440px){.container{max-width:1280px}}

/* ---------- Foundation 栅格定制 ---------- */
.grid-x{display:flex;flex-wrap:wrap;margin-left:-12px;margin-right:-12px}
.grid-x>.cell{flex:0 0 auto;width:100%;min-width:0;padding-left:12px;padding-right:12px}
.grid-margin-x{margin-left:-12px;margin-right:-12px}
@media (min-width:640px){
  .grid-x>.cell.medium-6{width:50%}
  .grid-x>.cell.medium-4{width:33.3333%}
}
@media (min-width:1024px){
  .grid-x>.cell.large-3{width:25%}
  .grid-x>.cell.large-4{width:33.3333%}
  .grid-x>.cell.large-8{width:66.6667%}
}

/* ---------- 通用按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:48px;padding:0 26px;border-radius:var(--r-pill);
  font-size:15px;font-weight:600;border:1px solid transparent;
  transition:transform .22s ease,box-shadow .22s ease,background-color .22s ease,color .22s ease,border-color .22s ease;
  white-space:nowrap;text-align:center;
}
.btn-sm{min-height:40px;padding:0 20px;font-size:14px}
.btn-primary{background:var(--grad-brand);color:#08110F;box-shadow:0 10px 24px rgba(20,200,166,.26)}
.btn-primary:hover{color:#08110F;transform:translateY(-2px);box-shadow:0 16px 34px rgba(20,200,166,.34)}
.btn-primary:active{transform:translateY(1px)}
.btn-ghost{background:transparent;border-color:rgba(20,200,166,.45);color:var(--brand-400)}
.btn-ghost:hover{background:rgba(20,200,166,.12);color:#FFFFFF;transform:translateY(-2px)}
.btn-outline{background:#FFFFFF;border-color:var(--line);color:var(--text-900)}
.btn-outline:hover{border-color:var(--brand-500);color:var(--brand-700);transform:translateY(-2px);box-shadow:var(--shadow-1)}
.btn-block{width:100%}

/* ---------- 标签与徽章 ---------- */
.tag{
  display:inline-flex;align-items:center;gap:6px;padding:5px 12px;border-radius:var(--r-pill);
  background:rgba(20,200,166,.12);color:var(--brand-700);font-size:13px;font-weight:600;white-space:nowrap;
}
.tag-warm{background:rgba(255,122,69,.14);color:#C4501F}
.stat-badge{
  display:inline-flex;align-items:center;gap:10px;padding:10px 16px;border-radius:var(--r-pill);
  background:rgba(23,35,38,.78);border:1px solid rgba(20,200,166,.35);backdrop-filter:blur(6px);
}
.stat-badge b{font-size:22px;font-weight:800;line-height:1;color:var(--brand-400);font-variant-numeric:tabular-nums}
.stat-badge span{font-size:13px;color:rgba(242,250,248,.78)}
.kicker{
  display:inline-flex;align-items:center;gap:8px;padding:6px 14px;border-radius:var(--r-pill);
  border:1px solid rgba(20,200,166,.35);background:rgba(20,200,166,.10);
  color:var(--brand-400);font-size:13px;font-weight:600;letter-spacing:.04em;
}

/* ---------- 顶部导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(10,17,19,.94);
  backdrop-filter:blur(10px);
  transition:box-shadow .25s ease,background-color .25s ease;
}
.site-header::after{
  content:"";position:absolute;left:0;right:0;bottom:0;height:1px;background:var(--grad-line);
}
.site-header.is-scrolled{background:rgba(10,17,19,.98);box-shadow:0 12px 32px rgba(10,17,19,.42)}
.nav-inner{display:flex;align-items:center;gap:20px;min-height:72px;position:relative}
.brand{display:flex;align-items:center;gap:12px;flex:0 0 auto;color:#EAF6F3}
.brand-mark{
  width:40px;height:40px;border-radius:12px;background:var(--grad-brand);
  display:grid;place-items:center;box-shadow:0 6px 18px rgba(20,200,166,.28);flex:0 0 auto;
}
.brand-mark svg{width:24px;height:24px}
.brand-name{font-size:19px;font-weight:700;letter-spacing:.01em;color:#EAF6F3}
.brand-name em{font-style:normal;color:var(--brand-400)}
.nav-links{display:flex;align-items:center;gap:4px;margin-left:auto;margin-right:auto}
.nav-links a{
  position:relative;display:inline-flex;align-items:center;min-height:44px;padding:0 14px;
  border-radius:10px;color:rgba(242,250,248,.72);font-size:15px;font-weight:500;
}
.nav-links a:hover{color:#FFFFFF;background:rgba(20,200,166,.10)}
.nav-links a.is-active{color:var(--brand-400);text-shadow:0 0 14px rgba(20,200,166,.55)}
.nav-links a.is-active::after{
  content:"";position:absolute;left:14px;right:14px;bottom:3px;height:2px;border-radius:2px;
  background:var(--grad-brand);box-shadow:0 0 12px rgba(20,200,166,.75);
}
.nav-actions{display:flex;align-items:center;gap:12px;flex:0 0 auto}
.nav-toggle{
  display:none;width:44px;height:44px;border-radius:12px;border:1px solid rgba(20,200,166,.35);
  background:rgba(20,200,166,.08);padding:0;position:relative;
}
.nav-toggle span{
  position:absolute;left:12px;right:12px;height:2px;border-radius:2px;background:#D8F4EE;
  transition:transform .25s ease,opacity .2s ease,top .25s ease;
}
.nav-toggle span:nth-child(1){top:15px}
.nav-toggle span:nth-child(2){top:21px}
.nav-toggle span:nth-child(3){top:27px}
.nav-toggle.is-open span:nth-child(1){top:21px;transform:rotate(45deg)}
.nav-toggle.is-open span:nth-child(2){opacity:0}
.nav-toggle.is-open span:nth-child(3){top:21px;transform:rotate(-45deg)}

/* ---------- 页头 Hero ---------- */
.page-hero{
  position:relative;overflow:hidden;color:var(--text-inverse);
  background:var(--ink-900) url('/assets/images/backpic/back-2.webp') center/cover no-repeat;
}
.page-hero::before{
  content:"";position:absolute;inset:0;
  background:
    radial-gradient(720px 360px at 16% 6%,rgba(20,200,166,.20),transparent 64%),
    radial-gradient(560px 300px at 90% 96%,rgba(255,122,69,.16),transparent 68%),
    linear-gradient(180deg,rgba(10,17,19,.86),rgba(10,17,19,.96));
}
.page-hero>.container{position:relative;z-index:2}
.hero-inner{
  display:grid;grid-template-columns:1.06fr .94fr;gap:48px;align-items:center;
  padding:72px 0 60px;
}
.hero-copy h1{color:#FFFFFF;max-width:14em}
.hero-copy h1 .hl{color:var(--brand-400)}
.hero-lead{margin-top:16px;font-size:17px;line-height:1.75;color:rgba(242,250,248,.78);max-width:34em}
.hero-cta{display:flex;flex-wrap:wrap;gap:14px;margin-top:28px}
.trust-row{display:flex;flex-wrap:wrap;gap:10px;margin-top:26px}
.trust-row span{
  display:inline-flex;align-items:center;gap:7px;font-size:13px;color:rgba(242,250,248,.7);
  padding:6px 12px;border-radius:var(--r-pill);border:1px solid rgba(242,250,248,.14);
  background:rgba(23,35,38,.5);
}
.trust-row span::before{
  content:"";width:6px;height:6px;border-radius:50%;background:var(--brand-500);
  box-shadow:0 0 8px rgba(20,200,166,.85);flex:0 0 auto;
}
.hero-figure{position:relative}
.hero-figure img{
  width:100%;aspect-ratio:16/11;object-fit:cover;border-radius:var(--r-lg);
  border:1px solid rgba(20,200,166,.35);box-shadow:var(--glow);
}
.hero-badges{display:flex;flex-wrap:wrap;gap:10px;margin-top:22px}

/* ---------- 速览数据条 ---------- */
.quick-strip{background:var(--paper-50);padding:0 0 var(--sec-y)}
.quick-card{
  margin-top:-34px;position:relative;z-index:5;background:#FFFFFF;
  border:1px solid var(--line);border-radius:var(--r-lg);box-shadow:var(--shadow-2);
  padding:28px 30px;
}
.quick-head{display:flex;align-items:flex-end;justify-content:space-between;gap:20px;flex-wrap:wrap;margin-bottom:22px}
.quick-head h2{font-size:22px}
.quick-head p{font-size:14px;color:var(--text-500);margin-top:6px;max-width:52em}
.quick-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.quick-item{padding:18px 20px;border-radius:var(--r-md);background:var(--paper-50);border:1px solid var(--line)}
.quick-item b{display:block;font-size:30px;line-height:1;font-weight:800;color:var(--brand-700);margin-bottom:8px}
.quick-item b.warm{color:var(--accent-500)}
.quick-item strong{display:block;font-size:15px;font-weight:600;color:var(--text-900);margin-bottom:5px}
.quick-item span{font-size:13px;color:var(--text-500);line-height:1.65}

/* ---------- 锚点目录 + 长文 ---------- */
.toc-layout{
  display:grid;grid-template-columns:250px minmax(0,1fr);gap:48px;
  padding:0 0 var(--sec-y);align-items:start;
}
.toc{
  position:sticky;top:96px;background:#FFFFFF;border:1px solid var(--line);
  border-radius:var(--r-md);padding:22px 20px;box-shadow:var(--shadow-1);
}
.toc h4{font-size:12.5px;letter-spacing:.16em;color:var(--text-500);font-weight:600;margin-bottom:14px}
.toc a{
  display:block;padding:10px 12px;border-radius:10px;font-size:14.5px;color:var(--text-700);
  border-left:3px solid transparent;transition:all .2s ease;
}
.toc a:hover{background:var(--paper-100);color:var(--brand-700)}
.toc a.is-current{background:rgba(20,200,166,.10);color:var(--brand-700);border-left-color:var(--brand-500)}
.toc-note{
  margin-top:18px;padding-top:16px;border-top:1px dashed var(--line);
  font-size:13px;color:var(--text-500);line-height:1.7;
}

.article-sec{margin-bottom:64px}
.article-sec:last-child{margin-bottom:0}
.article-sec h2{position:relative;padding-left:18px;margin-bottom:14px}
.article-sec h2::before{
  content:"";position:absolute;left:0;top:.2em;bottom:.2em;width:4px;border-radius:4px;background:var(--grad-brand);
}
.sec-lead{margin-bottom:22px;font-size:16px;color:var(--text-500);max-width:44em}
.article-sec h3{margin:26px 0 12px;color:var(--text-900)}
.article-sec p{margin-bottom:16px}
.article-sec p:last-child{margin-bottom:0}

.point-list{display:grid;gap:12px;margin:6px 0 20px}
.point-list li{
  position:relative;padding:14px 18px 14px 44px;border-radius:14px;
  background:#FFFFFF;border:1px solid var(--line);color:var(--text-700);font-size:15.5px;line-height:1.72;
}
.point-list li::before{
  content:"";position:absolute;left:20px;top:20px;width:8px;height:8px;border-radius:50%;
  background:var(--brand-500);box-shadow:0 0 0 4px rgba(20,200,166,.14);
}
.point-list.list-warm li::before{background:var(--accent-500);box-shadow:0 0 0 4px rgba(255,122,69,.16)}

.figure-block{margin:28px 0}
.figure-block img{width:100%;border-radius:var(--r-md);border:1px solid var(--line);aspect-ratio:16/10;object-fit:cover}
.figcap{margin-top:10px;text-align:center;font-size:13px;color:var(--text-500)}

.callout{
  border-radius:var(--r-md);border:1px solid rgba(20,200,166,.30);
  background:linear-gradient(135deg,rgba(20,200,166,.09),rgba(255,122,69,.07));
  padding:20px 24px;margin:22px 0;
}
.callout strong{display:block;font-size:15px;color:var(--brand-700);margin-bottom:6px}
.callout p{font-size:15px;color:var(--text-700);margin:0}

/* ---------- 场景条 ---------- */
.scene-section{padding:0 0 var(--sec-y)}
.scene-section h2{margin-bottom:12px}
.scene-section .sec-lead{margin-bottom:28px}
.scene-list{display:grid;gap:14px}
.scene-item{
  display:flex;align-items:center;gap:18px;padding:18px 24px;background:#FFFFFF;
  border:1px solid var(--line);border-radius:18px;transition:all .22s ease;
}
.scene-item:hover{background:#F2FBF8;border-color:rgba(20,200,166,.42);transform:translateY(-2px);box-shadow:var(--shadow-1)}
.scene-item p{flex:1 1 auto;font-size:15.5px;color:var(--text-700);margin:0}
.scene-item .arrow{flex:0 0 auto;color:var(--brand-500);transition:transform .22s ease}
.scene-item:hover .arrow{transform:translateX(4px)}

/* ---------- FAQ ---------- */
.faq-section{padding:0 0 var(--sec-y)}
.faq-list{display:grid;gap:14px;margin-top:26px}
.faq-item{
  background:#FFFFFF;border:1px solid var(--line);border-radius:16px;overflow:hidden;
  transition:border-color .22s ease,box-shadow .22s ease;
}
.faq-item:hover{border-color:rgba(20,200,166,.35)}
.faq-item.is-open{border-color:rgba(20,200,166,.5);box-shadow:var(--shadow-1)}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:18px;
  padding:20px 24px;background:none;border:0;text-align:left;
  font-size:16.5px;font-weight:600;color:var(--text-900);min-height:44px;
}
.faq-q .chev{flex:0 0 auto;color:var(--text-500);transition:transform .28s ease,color .22s ease}
.faq-item.is-open .faq-q .chev{transform:rotate(180deg);color:var(--brand-500)}
.faq-a{max-height:0;overflow:hidden;transition:max-height .34s ease}
.faq-a p{padding:0 24px 22px;margin:0;font-size:15.5px;color:var(--text-700)}
.faq-item.is-open .faq-a{max-height:420px}

/* ---------- CTA 条 ---------- */
.cta-section{padding:0 0 88px}
.cta-inner{
  position:relative;border-radius:var(--r-xl);padding:44px 48px;overflow:hidden;
  display:flex;align-items:center;gap:32px;flex-wrap:wrap;
  border:1px solid transparent;
  background-image:linear-gradient(120deg,#0A1113,#101A1D),var(--grad-brand);
  background-origin:border-box;background-clip:padding-box,border-box;
}
.cta-inner::before{
  content:"";position:absolute;inset:0;pointer-events:none;
  background:radial-gradient(520px 240px at 88% 10%,rgba(20,200,166,.22),transparent 68%);
}
.cta-text{position:relative;z-index:2;flex:1 1 320px}
.cta-text h2{color:#FFFFFF;font-size:clamp(22px,2.4vw,30px);margin-bottom:10px}
.cta-text p{color:rgba(242,250,248,.72);font-size:15px;margin:0;max-width:40em}
.cta-actions{position:relative;z-index:2;display:flex;flex-wrap:wrap;align-items:center;gap:14px}
.cta-note{width:100%;font-size:13px;color:rgba(242,250,248,.55);margin-top:4px}

/* ---------- 弹层表单 ---------- */
.modal-mask{
  position:fixed;inset:0;z-index:120;display:none;align-items:center;justify-content:center;
  padding:20px;background:rgba(10,17,19,.74);backdrop-filter:blur(4px);
}
.modal-mask.is-open{display:flex}
.modal-card{
  width:100%;max-width:486px;background:#FFFFFF;border-radius:var(--r-lg);
  padding:32px;position:relative;box-shadow:0 30px 70px rgba(10,17,19,.4);
  max-height:calc(100vh - 40px);overflow:auto;
}
.modal-card h3{font-size:21px;margin-bottom:8px}
.modal-card>p{font-size:14px;color:var(--text-500);margin-bottom:22px}
.modal-close{
  position:absolute;top:16px;right:16px;width:40px;height:40px;border-radius:12px;
  border:1px solid var(--line);background:var(--paper-50);color:var(--text-500);
  font-size:18px;line-height:1;display:grid;place-items:center;transition:all .2s ease;
}
.modal-close:hover{border-color:var(--brand-500);color:var(--brand-700);background:#FFFFFF}
.field{margin-bottom:16px}
.field label{display:block;font-size:14px;font-weight:600;color:var(--text-700);margin-bottom:8px}
.field input,.field textarea,.field select{
  width:100%;padding:12px 14px;border:1px solid var(--line);border-radius:12px;
  font-size:15px;font-family:inherit;background:var(--paper-50);color:var(--text-900);
  transition:border-color .2s ease,box-shadow .2s ease,background-color .2s ease;min-height:46px;
}
.field textarea{min-height:96px;resize:vertical;line-height:1.7}
.field input:focus,.field textarea:focus,.field select:focus{
  outline:none;border-color:var(--brand-500);background:#FFFFFF;box-shadow:0 0 0 3px rgba(20,200,166,.14);
}
.form-error{min-height:20px;font-size:13px;color:#C4501F;margin-bottom:6px}
.form-note{font-size:13px;color:var(--text-500);margin-top:12px;line-height:1.7}

/* ---------- 页脚 ---------- */
.site-footer{position:relative;background:var(--ink-900);color:rgba(242,250,248,.72);padding-top:64px}
.site-footer::before{
  content:"";position:absolute;top:0;left:0;right:0;height:1px;background:var(--grad-line);
}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:40px;padding-bottom:48px}
.footer-brand{display:flex;align-items:center;gap:12px;margin-bottom:14px}
.footer-desc{font-size:14px;line-height:1.8;color:rgba(242,250,248,.6);max-width:320px}
.footer-col h4{font-size:15px;color:#EAF6F3;font-weight:600;margin-bottom:16px}
.footer-col ul li{margin-bottom:10px}
.footer-col ul li a{font-size:14.5px;color:rgba(242,250,248,.68);display:inline-flex;align-items:center;min-height:32px}
.footer-col ul li a:hover{color:var(--brand-400)}
.footer-bottom{
  border-top:1px solid rgba(242,250,248,.10);padding:20px 0 26px;
  display:flex;justify-content:space-between;align-items:center;gap:12px;flex-wrap:wrap;
  font-size:13px;color:rgba(242,250,248,.5);
}

/* ---------- 响应式 ---------- */
@media (max-width:1023px){
  :root{--sec-y:64px}
  .nav-toggle{display:block}
  .nav-links{
    position:absolute;top:100%;left:-20px;right:-20px;margin:0;display:none;
    flex-direction:column;align-items:stretch;gap:4px;padding:14px 20px 20px;
    background:rgba(10,17,19,.99);border-bottom:1px solid rgba(20,200,166,.28);
    box-shadow:0 26px 44px rgba(10,17,19,.5);
  }
  .nav-links.is-open{display:flex}
  .nav-links a{min-height:48px;padding:0 14px;font-size:16px;border-radius:12px}
  .nav-links a.is-active{background:rgba(20,200,166,.10)}
  .nav-links a.is-active::after{left:14px;right:auto;width:32px;bottom:8px}
  .hero-inner{grid-template-columns:1fr;gap:34px;padding:56px 0 48px}
  .quick-grid{grid-template-columns:repeat(2,1fr)}
  .toc-layout{grid-template-columns:1fr;gap:32px}
  .toc{position:static}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
}
@media (max-width:639px){
  .container{padding:0 18px}
  .nav-links{left:-18px;right:-18px}
  .hero-inner{padding:44px 0 40px}
  .hero-cta .btn{width:100%}
  .hero-badges{gap:8px}
  .stat-badge{flex:1 1 calc(50% - 5px);justify-content:center;padding:10px 12px}
  .stat-badge b{font-size:19px}
  .quick-card{padding:22px 18px;margin-top:-24px}
  .quick-grid{grid-template-columns:1fr;gap:14px}
  .point-list li{padding:14px 16px 14px 40px}
  .point-list li::before{left:18px}
  .scene-item{flex-wrap:wrap;gap:10px;padding:16px 18px}
  .scene-item p{flex:1 1 100%;order:3}
  .scene-item .arrow{margin-left:auto}
  .cta-inner{padding:30px 22px;border-radius:24px;gap:22px}
  .cta-actions .btn{width:100%}
  .modal-card{padding:26px 20px}
  .footer-grid{grid-template-columns:1fr;gap:28px;padding-bottom:36px}
  .footer-bottom{flex-direction:column;align-items:flex-start;gap:6px}
  .article-sec{margin-bottom:48px}
}

/* roulang page: category2 */
:root{
  --ink-900:#0A1113;
  --ink-800:#101A1D;
  --ink-700:#172326;
  --brand-500:#14C8A6;
  --brand-400:#37DCBB;
  --brand-700:#0B8F78;
  --accent-500:#FF7A45;
  --accent-300:#FFC46B;
  --paper-50:#F6F8F7;
  --paper-100:#EDF2F0;
  --line:#DCE5E2;
  --text-900:#0E1A1C;
  --text-700:#2B3B3C;
  --text-500:#5A6D6C;
  --text-inverse:#F2FAF8;
  --grad-brand:linear-gradient(135deg,#14C8A6 0%,#0FA9A8 55%,#FF7A45 130%);
  --radius-lg:24px;
  --radius-md:20px;
  --radius-sm:12px;
  --shadow-1:0 8px 24px rgba(10,17,19,.06);
  --shadow-2:0 16px 36px rgba(10,17,19,.12);
  --glow:0 0 0 1px rgba(20,200,166,.35),0 0 24px rgba(20,200,166,.18);
  --font-cn:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
}

*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  font-family:var(--font-cn);
  font-size:16px;
  line-height:1.8;
  color:var(--text-700);
  background:var(--paper-50);
  font-weight:400;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border:0}
a{color:var(--brand-700);text-decoration:none;transition:color .2s ease,text-underline-offset .2s ease}
a:hover{color:var(--brand-500);text-decoration:underline;text-underline-offset:3px}
a:focus-visible,button:focus-visible,input:focus-visible,select:focus-visible,textarea:focus-visible{outline:2px solid var(--brand-400);outline-offset:2px}
button{font:inherit;cursor:pointer}
h1,h2,h3,h4{margin:0;color:var(--text-900);font-weight:700;line-height:1.3;letter-spacing:.2px}
h1{font-size:clamp(30px,4.4vw,48px);line-height:1.22}
h2{font-size:clamp(24px,3vw,34px);line-height:1.28}
h3{font-size:20px;line-height:1.4;font-weight:600}
h4{font-size:16px;font-weight:600}
p{margin:0}
ul,ol{margin:0;padding:0;list-style:none}
strong{font-weight:700;color:var(--text-900)}
em{font-style:normal}
table{border-collapse:collapse;width:100%}

.container{width:100%;max-width:1200px;margin:0 auto;padding:0 20px}
@media (min-width:1440px){.container{max-width:1280px}}

/* ---------- Header ---------- */
.site-header{
  position:sticky;top:0;z-index:80;
  background:rgba(10,17,19,.94);
  backdrop-filter:blur(12px);
  -webkit-backdrop-filter:blur(12px);
  transition:box-shadow .25s ease,background-color .25s ease;
}
.site-header::after{
  content:"";position:absolute;left:0;right:0;bottom:0;height:1px;
  background:linear-gradient(90deg,rgba(20,200,166,0),rgba(20,200,166,.75),rgba(255,122,69,.5),rgba(20,200,166,0));
}
.site-header.is-scrolled{background:rgba(10,17,19,.99);box-shadow:0 10px 30px rgba(6,12,13,.32)}
.nav-inner{position:relative;display:flex;align-items:center;gap:18px;min-height:72px}
.brand{display:inline-flex;align-items:center;gap:10px;color:var(--text-inverse);text-decoration:none;flex:0 0 auto}
.brand:hover{text-decoration:none;color:var(--text-inverse)}
.brand-mark{
  width:38px;height:38px;border-radius:13px;display:grid;place-items:center;
  background:var(--grad-brand);
  box-shadow:0 0 0 1px rgba(20,200,166,.4),0 0 20px rgba(20,200,166,.22);
}
.brand-mark svg{width:22px;height:22px}
.brand-name{font-size:19px;font-weight:700;color:var(--text-inverse);white-space:nowrap}
.brand-name em{color:var(--brand-400)}
.nav-links{display:flex;align-items:center;gap:4px;margin-left:auto}
.nav-links a{
  position:relative;display:inline-flex;align-items:center;min-height:44px;
  padding:0 14px;font-size:15px;color:#C6D4D2;border-radius:10px;
  transition:color .2s ease,background-color .2s ease;
}
.nav-links a:hover{color:var(--text-inverse);background:rgba(255,255,255,.06);text-decoration:none}
.nav-links a.is-active{color:var(--brand-400)}
.nav-links a.is-active::after{
  content:"";position:absolute;left:14px;right:14px;bottom:6px;height:2px;border-radius:2px;
  background:var(--brand-400);box-shadow:0 0 10px rgba(55,220,187,.9);
}
.nav-actions{display:flex;align-items:center;gap:10px;flex:0 0 auto}
.nav-toggle{
  display:none;flex-direction:column;justify-content:center;gap:4px;
  width:44px;height:44px;border-radius:12px;
  background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.14);
}
.nav-toggle span{display:block;width:18px;height:2px;margin:0 auto;background:var(--text-inverse);border-radius:2px;transition:transform .22s ease,opacity .22s ease}
.nav-toggle.is-active span:nth-child(1){transform:translateY(6px) rotate(45deg)}
.nav-toggle.is-active span:nth-child(2){opacity:0}
.nav-toggle.is-active span:nth-child(3){transform:translateY(-6px) rotate(-45deg)}

/* ---------- Buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:46px;padding:0 24px;border-radius:999px;border:1px solid transparent;
  font-size:15px;font-weight:600;color:var(--text-900);cursor:pointer;
  transition:transform .2s ease,box-shadow .2s ease,background-color .2s ease,color .2s ease,border-color .2s ease;
  white-space:nowrap;text-decoration:none;
}
.btn:hover{text-decoration:none;transform:translateY(-2px)}
.btn:active{transform:translateY(1px)}
.btn-primary{background:var(--grad-brand);color:#08110F;box-shadow:0 10px 26px rgba(20,200,166,.26)}
.btn-primary:hover{box-shadow:0 16px 36px rgba(20,200,166,.34);color:#08110F}
.btn-ghost{background:transparent;color:var(--text-inverse);border-color:rgba(242,250,248,.34)}
.btn-ghost:hover{border-color:var(--brand-400);color:var(--brand-400)}
.btn-light{background:#FFFFFF;color:var(--text-900);border-color:var(--line);box-shadow:var(--shadow-1)}
.btn-light:hover{border-color:rgba(20,200,166,.5);color:var(--brand-700)}
.btn-sm{min-height:40px;padding:0 18px;font-size:14px}
.btn-block{width:100%}

/* ---------- Hero ---------- */
.cat-hero{position:relative;overflow:hidden;background:var(--ink-900);color:var(--text-inverse);padding:56px 0 72px}
.cat-hero::before{
  content:"";position:absolute;inset:0;
  background-image:url(/assets/images/backpic/back-1.webp);
  background-size:cover;background-position:center;opacity:.16;
}
.cat-hero::after{
  content:"";position:absolute;inset:0;
  background:
    radial-gradient(760px 420px at 10% 4%,rgba(20,200,166,.26),transparent 62%),
    radial-gradient(560px 360px at 94% 96%,rgba(255,122,69,.2),transparent 60%);
}
.cat-hero .container{position:relative;z-index:2}
.cat-hero-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:48px;align-items:center;margin-top:22px}
.breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13.5px;color:rgba(242,250,248,.62)}
.breadcrumb a{color:rgba(242,250,248,.72);text-decoration:none}
.breadcrumb a:hover{color:var(--brand-400)}
.breadcrumb .sep{opacity:.5}
.breadcrumb .current{color:var(--brand-400)}
.eyebrow{
  display:inline-flex;align-items:center;gap:10px;
  font-size:13px;font-weight:600;letter-spacing:.14em;color:var(--brand-400);
}
.eyebrow::before{content:"";width:24px;height:2px;border-radius:2px;background:var(--grad-brand)}
.cat-hero h1{margin:16px 0 0;color:#FFFFFF}
.cat-hero .lead{margin-top:16px;font-size:17px;line-height:1.8;color:rgba(242,250,248,.8);max-width:540px}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:28px}
.trust-tags{display:flex;flex-wrap:wrap;gap:10px;margin-top:24px}
.trust-tags span{
  display:inline-flex;align-items:center;gap:6px;
  font-size:13px;color:rgba(242,250,248,.78);
  padding:6px 14px;border-radius:999px;
  background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.12);
}
.trust-tags span::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--brand-400);box-shadow:0 0 8px rgba(55,220,187,.9)}
.cat-hero-media{position:relative}
.cat-hero-media img{
  width:100%;aspect-ratio:16/11;object-fit:cover;border-radius:24px;
  border:1px solid rgba(20,200,166,.35);
  box-shadow:0 0 0 1px rgba(20,200,166,.25),0 24px 60px rgba(6,12,13,.55);
}
.badge-row{display:flex;flex-wrap:wrap;gap:12px;margin-top:34px}
.stat-badge{
  display:inline-flex;flex-direction:column;gap:2px;
  padding:12px 18px;border-radius:16px;
  background:rgba(10,17,19,.55);
  border:1px solid rgba(20,200,166,.35);
  backdrop-filter:blur(6px);-webkit-backdrop-filter:blur(6px);
}
.stat-badge b{font-size:26px;font-weight:800;line-height:1.1;color:var(--brand-400);font-variant-numeric:tabular-nums}
.stat-badge.is-accent b{color:var(--accent-300)}
.stat-badge span{font-size:13px;color:rgba(242,250,248,.72)}

/* ---------- Sections ---------- */
.section{padding:88px 0}
.section.is-tight{padding:64px 0}
.section.is-paper{background:var(--paper-100)}
.section-head{max-width:760px;margin-bottom:40px}
.section-head h2{margin-top:14px}
.section-head p{margin-top:14px;color:var(--text-500);font-size:16px;max-width:660px}
.section-head.is-center{margin-left:auto;margin-right:auto;text-align:center}
.section-head.is-center .eyebrow{justify-content:center}

/* ---------- Notice strip list ---------- */
.strip-list{display:flex;flex-direction:column;gap:14px}
.strip-item{
  display:grid;grid-template-columns:auto 1fr auto;align-items:center;gap:20px;
  padding:20px 24px;border-radius:var(--radius-md);
  background:#FFFFFF;border:1px solid var(--line);box-shadow:var(--shadow-1);
  transition:transform .22s ease,border-color .22s ease,box-shadow .22s ease,background-color .22s ease;
}
.strip-item:hover{transform:translateY(-3px);border-color:rgba(20,200,166,.4);box-shadow:var(--shadow-2)}
.strip-no{
  width:44px;height:44px;border-radius:50%;display:grid;place-items:center;
  font-weight:800;font-size:15px;font-variant-numeric:tabular-nums;
  color:var(--brand-700);background:rgba(20,200,166,.12);
  border:1px solid rgba(20,200,166,.42);
}
.strip-item h3{font-size:17px}
.strip-item p{margin-top:4px;font-size:14.5px;color:var(--text-500)}
.strip-arrow{color:var(--brand-700);font-size:18px;transition:transform .22s ease}
.strip-item:hover .strip-arrow{transform:translateX(4px)}

/* ---------- Split modules ---------- */
.split{display:grid;grid-template-columns:1fr 1fr;gap:52px;align-items:center;padding:34px 0}
.split + .split{margin-top:28px;border-top:1px solid var(--line);padding-top:64px}
.split-media img{width:100%;aspect-ratio:16/10;object-fit:cover;border-radius:var(--radius-md);box-shadow:var(--shadow-1)}
.split.reverse .split-media{order:2}
.split-body h3{margin-top:16px;font-size:22px}
.split-body p{margin-top:14px;color:var(--text-500);font-size:16px}
.split-badge{
  display:inline-flex;align-items:baseline;gap:10px;
  padding:10px 18px;border-radius:999px;
  background:var(--ink-900);border:1px solid rgba(20,200,166,.35);
}
.split-badge b{font-size:22px;font-weight:800;color:var(--brand-400);line-height:1;font-variant-numeric:tabular-nums}
.split-badge span{font-size:13px;color:rgba(242,250,248,.72)}
.tick-list{margin-top:18px}
.tick-list li{position:relative;padding-left:30px;margin-top:12px;font-size:15.5px;color:var(--text-700)}
.tick-list li::before{
  content:"";position:absolute;left:0;top:8px;width:18px;height:18px;border-radius:50%;
  background:rgba(20,200,166,.14);border:1px solid rgba(20,200,166,.5);
}
.tick-list li::after{
  content:"";position:absolute;left:5.5px;top:13px;width:7px;height:3.5px;
  border-left:2px solid var(--brand-700);border-bottom:2px solid var(--brand-700);
  transform:rotate(-45deg);
}

/* ---------- Steps ---------- */
.steps-wrap{position:relative}
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:24px;position:relative}
.steps::before{
  content:"";position:absolute;top:28px;left:6%;right:6%;height:2px;
  background:linear-gradient(90deg,rgba(20,200,166,0),rgba(20,200,166,.6),rgba(255,122,69,.5),rgba(20,200,166,0));
}
.step{position:relative;padding-top:0}
.step-dot{
  position:relative;z-index:2;width:56px;height:56px;border-radius:50%;
  display:grid;place-items:center;font-weight:800;font-size:17px;
  color:#08110F;background:var(--grad-brand);
  font-variant-numeric:tabular-nums;
  box-shadow:0 0 0 6px rgba(10,17,19,.9),0 0 22px rgba(20,200,166,.35);
}
.step-card{
  margin-top:20px;padding:22px 22px 24px;border-radius:var(--radius-md);
  background:#FFFFFF;border:1px solid var(--line);box-shadow:var(--shadow-1);
  transition:transform .22s ease,border-color .22s ease,box-shadow .22s ease;
}
.step-card:hover{transform:translateY(-4px);border-color:rgba(20,200,166,.4);box-shadow:var(--shadow-2)}
.step-card h3{font-size:17px}
.step-card p{margin-top:8px;font-size:14.5px;color:var(--text-500)}

/* ---------- Habit grid ---------- */
.habit-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.habit{
  padding:24px;border-radius:var(--radius-md);background:#FFFFFF;
  border:1px solid var(--line);box-shadow:var(--shadow-1);
  transition:transform .22s ease,border-color .22s ease,box-shadow .22s ease;
}
.habit:hover{transform:translateY(-4px);border-color:rgba(20,200,166,.4);box-shadow:var(--shadow-2)}
.habit-icon{
  width:40px;height:40px;border-radius:12px;display:grid;place-items:center;
  background:rgba(20,200,166,.12);border:1px solid rgba(20,200,166,.4);
  color:var(--brand-700);font-weight:800;font-size:15px;font-variant-numeric:tabular-nums;
}
.habit h3{margin-top:16px;font-size:17px}
.habit p{margin-top:8px;font-size:14.5px;color:var(--text-500)}

/* ---------- FAQ ---------- */
.faq-wrap{display:grid;grid-template-columns:.82fr 1.18fr;gap:48px;align-items:start}
.faq-aside{border-left:3px solid var(--brand-500);padding-left:22px}
.faq-aside h2{margin-top:12px}
.faq-aside p{margin-top:14px;color:var(--text-500);font-size:15.5px}
.faq-aside .btn{margin-top:22px}
.faq-accordion{list-style:none;margin:0;padding:0}
.faq-accordion .accordion-item{
  background:#FFFFFF;border:1px solid var(--line);border-radius:16px;
  margin-bottom:14px;overflow:hidden;
  transition:border-color .22s ease,box-shadow .22s ease;
}
.faq-accordion .accordion-item:hover{border-color:rgba(20,200,166,.4)}
.faq-accordion .accordion-item.is-active{
  border-color:rgba(20,200,166,.5);
  box-shadow:0 0 0 1px rgba(20,200,166,.22),var(--shadow-1);
}
.faq-accordion .accordion-title{
  display:flex;align-items:center;justify-content:space-between;gap:18px;
  padding:18px 22px;margin:0;font-size:16.5px;font-weight:600;color:var(--text-900);
  background:transparent;border:0;line-height:1.6;
}
.faq-accordion .accordion-title::before{display:none}
.faq-accordion .accordion-title::after{
  content:"";flex:0 0 auto;width:10px;height:10px;
  border-right:2px solid var(--text-500);border-bottom:2px solid var(--text-500);
  transform:rotate(45deg);transition:transform .25s ease,border-color .25s ease;
}
.faq-accordion .accordion-item.is-active .accordion-title::after{
  transform:rotate(-135deg);border-color:var(--brand-700);
}
.faq-accordion .accordion-content{
  display:none;padding:0 22px 22px;border:0;background:transparent;
  font-size:15.5px;line-height:1.85;color:var(--text-500);
}
.faq-accordion .accordion-item.is-active > .accordion-content{display:block}
.faq-accordion .accordion-content p + p{margin-top:12px}

/* ---------- CTA strip ---------- */
.cta-strip{
  position:relative;overflow:hidden;
  display:flex;align-items:center;justify-content:space-between;gap:36px;
  padding:44px 46px;border-radius:28px;background:var(--ink-900);color:var(--text-inverse);
}
.cta-strip::before{
  content:"";position:absolute;inset:0;border-radius:28px;padding:1px;pointer-events:none;
  background:linear-gradient(135deg,rgba(20,200,166,.85),rgba(255,122,69,.6) 55%,rgba(20,200,166,0));
  -webkit-mask:linear-gradient(#000 0 0) content-box,linear-gradient(#000 0 0);
  -webkit-mask-composite:xor;mask-composite:exclude;
}
.cta-strip::after{
  content:"";position:absolute;right:-80px;top:-120px;width:380px;height:380px;border-radius:50%;
  background:radial-gradient(circle,rgba(20,200,166,.22),transparent 66%);
}
.cta-strip-text{position:relative;z-index:2;max-width:640px}
.cta-strip-text h2{color:#FFFFFF;font-size:clamp(22px,2.6vw,30px)}
.cta-strip-text p{margin-top:12px;color:rgba(242,250,248,.78);font-size:15.5px}
.cta-strip-actions{position:relative;z-index:2;display:flex;flex-direction:column;align-items:flex-end;gap:10px}
.cta-strip-actions .note{font-size:13px;color:rgba(242,250,248,.6)}

/* ---------- Footer ---------- */
.site-footer{position:relative;background:var(--ink-900);color:rgba(242,250,248,.72);padding:64px 0 28px;margin-top:0}
.site-footer::before{
  content:"";position:absolute;left:0;right:0;top:0;height:1px;
  background:linear-gradient(90deg,rgba(20,200,166,0),rgba(20,200,166,.8),rgba(255,122,69,.55),rgba(20,200,166,0));
}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:40px}
.footer-brand{display:inline-flex;align-items:center;gap:10px}
.footer-brand .brand-name{font-size:18px}
.footer-desc{margin-top:16px;font-size:14.5px;color:rgba(242,250,248,.62);max-width:280px;line-height:1.75}
.footer-col h4{color:var(--text-inverse);font-size:15px;font-weight:600;margin-bottom:16px}
.footer-col ul li{margin-bottom:10px}
.footer-col ul a{color:rgba(242,250,248,.7);font-size:14.5px;text-decoration:none;transition:color .2s ease}
.footer-col ul a:hover{color:var(--brand-400);text-decoration:none}
.footer-bottom{
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:12px;
  margin-top:48px;padding-top:22px;border-top:1px solid rgba(255,255,255,.08);
  font-size:13.5px;color:rgba(242,250,248,.5);
}

/* ---------- Modal ---------- */
.modal-mask{
  position:fixed;inset:0;z-index:140;display:none;
  align-items:center;justify-content:center;padding:20px;
  background:rgba(6,12,13,.74);backdrop-filter:blur(4px);-webkit-backdrop-filter:blur(4px);
}
.modal-mask.is-open{display:flex}
.modal-card{
  position:relative;width:100%;max-width:520px;max-height:90vh;overflow:auto;
  background:#FFFFFF;border-radius:var(--radius-lg);padding:30px;
  box-shadow:0 30px 70px rgba(6,12,13,.45);
}
.modal-card h3{font-size:21px}
.modal-card .modal-sub{margin-top:10px;font-size:14.5px;color:var(--text-500)}
.modal-close{
  position:absolute;right:16px;top:16px;width:40px;height:40px;border-radius:12px;
  border:1px solid var(--line);background:#FFFFFF;color:var(--text-500);font-size:18px;line-height:1;
}
.modal-close:hover{border-color:rgba(20,200,166,.5);color:var(--brand-700)}
.field{margin-top:16px}
.field label{display:block;font-size:14px;font-weight:600;color:var(--text-900);margin-bottom:8px}
.field input,.field select,.field textarea{
  width:100%;min-height:46px;padding:11px 14px;font-size:15px;font-family:inherit;
  color:var(--text-900);background:#FFFFFF;border:1px solid var(--line);border-radius:12px;
  transition:border-color .2s ease,box-shadow .2s ease;
}
.field textarea{min-height:88px;resize:vertical;line-height:1.7}
.field input:focus,.field select:focus,.field textarea:focus{
  outline:none;border-color:var(--brand-500);
  box-shadow:0 0 0 3px rgba(20,200,166,.14);
}
.form-note{margin-top:12px;font-size:13px;color:var(--text-500);min-height:20px}
.modal-card .btn{margin-top:20px}

/* ---------- Reveal on scroll ---------- */
.reveal{opacity:0;transform:translateY(18px);transition:opacity .6s ease,transform .6s ease}
.reveal.is-in{opacity:1;transform:none}
@media (prefers-reduced-motion:reduce){
  .reveal{opacity:1;transform:none;transition:none}
  *{animation-duration:.001ms !important;transition-duration:.001ms !important}
}

/* ---------- Responsive ---------- */
@media (max-width:1023px){
  .nav-toggle{display:flex}
  .nav-links{
    position:absolute;top:calc(100% + 1px);left:0;right:0;
    display:none;flex-direction:column;align-items:stretch;gap:2px;
    margin:0;padding:12px 16px 18px;
    background:rgba(10,17,19,.98);
    border-bottom:1px solid rgba(20,200,166,.28);
    box-shadow:0 18px 36px rgba(6,12,13,.5);
  }
  .nav-links.is-open{display:flex}
  .nav-links a{padding:14px 12px;font-size:16px;border-radius:10px}
  .nav-links a.is-active{background:rgba(20,200,166,.1)}
  .nav-links a.is-active::after{display:none}
  .cat-hero{padding:44px 0 56px}
  .cat-hero-grid{grid-template-columns:1fr;gap:36px}
  .cat-hero-media{order:2}
  .section{padding:64px 0}
  .split{grid-template-columns:1fr;gap:26px;padding:24px 0}
  .split + .split{padding-top:40px;margin-top:20px}
  .split.reverse .split-media{order:0}
  .steps{grid-template-columns:1fr 1fr;gap:28px}
  .steps::before{display:none}
  .habit-grid{grid-template-columns:1fr 1fr}
  .faq-wrap{grid-template-columns:1fr;gap:32px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
  .cta-strip{flex-direction:column;align-items:flex-start;padding:34px 30px}
  .cta-strip-actions{align-items:flex-start;width:100%}
}
@media (max-width:639px){
  body{font-size:15.5px}
  .container{padding:0 16px}
  .brand-name{font-size:17px}
  .nav-actions .btn-sm{padding:0 14px;font-size:13px}
  .cat-hero{padding:36px 0 48px}
  .cat-hero .lead{font-size:16px}
  .hero-actions .btn{width:100%}
  .badge-row{display:grid;grid-template-columns:1fr 1fr;gap:10px;margin-top:28px}
  .stat-badge{padding:12px 14px}
  .stat-badge b{font-size:22px}
  .section{padding:48px 0}
  .section-head{margin-bottom:28px}
  .strip-item{grid-template-columns:auto 1fr;gap:14px;padding:18px 18px}
  .strip-arrow{display:none}
  .steps{grid-template-columns:1fr;gap:22px}
  .step-dot{width:48px;height:48px;font-size:15px}
  .habit-grid{grid-template-columns:1fr}
  .split-body h3{font-size:19px}
  .faq-accordion .accordion-title{padding:16px;font-size:15.5px}
  .faq-accordion .accordion-content{padding:0 16px 18px}
  .cta-strip{padding:28px 20px;border-radius:22px}
  .cta-strip-actions .btn{width:100%}
  .footer-grid{grid-template-columns:1fr;gap:28px}
  .footer-bottom{flex-direction:column;align-items:flex-start;margin-top:32px}
  .modal-card{padding:22px}
}

/* roulang page: category3 */
:root{
  --ink-900:#0A1113;
  --ink-800:#101A1D;
  --ink-700:#172326;
  --brand-500:#14C8A6;
  --brand-400:#37DCBB;
  --brand-700:#0B8F78;
  --accent-500:#FF7A45;
  --accent-300:#FFC46B;
  --paper-50:#F6F8F7;
  --paper-100:#EDF2F0;
  --line:#DCE5E2;
  --text-900:#0E1A1C;
  --text-700:#2B3B3C;
  --text-500:#5A6D6C;
  --text-inverse:#F2FAF8;
  --grad-brand:linear-gradient(135deg,#14C8A6 0%,#0FA9A8 55%,#FF7A45 130%);
  --radius-lg:24px;
  --radius-md:20px;
  --radius-sm:14px;
  --radius-xs:12px;
  --shadow-1:0 8px 24px rgba(10,17,19,.06);
  --shadow-2:0 16px 36px rgba(10,17,19,.12);
  --shadow-glow:0 0 0 1px rgba(20,200,166,.35),0 0 24px rgba(20,200,166,.18);
  --container:1200px;
  --gutter:24px;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:16.5px;
  line-height:1.8;
  color:var(--text-700);
  background:var(--paper-50);
  font-variant-numeric:tabular-nums;
  overflow-x:hidden;
}
h1,h2,h3,h4{margin:0;color:var(--text-900);font-weight:700;line-height:1.28;font-family:inherit;}
p{margin:0;}
ul,ol{margin:0;padding:0;list-style:none;}
a{color:var(--brand-700);text-decoration:none;transition:color .22s ease,background-color .22s ease,text-underline-offset .22s ease;}
a:hover{color:var(--brand-500);text-decoration:underline;text-underline-offset:4px;}
img{max-width:100%;display:block;height:auto;}
button,input,textarea,select{font-family:inherit;font-size:inherit;}
button{cursor:pointer;border:0;background:none;}
:focus-visible{outline:2px solid var(--brand-500);outline-offset:2px;border-radius:6px;}
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 var(--gutter);}
@media (min-width:1440px){.container{max-width:1280px;}}

/* ---------- 通用按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:13px 26px;border-radius:999px;font-size:15px;font-weight:600;
  min-height:46px;line-height:1;letter-spacing:.02em;
  transition:transform .22s ease,box-shadow .22s ease,background-position .35s ease,color .22s ease,border-color .22s ease;
  border:1px solid transparent;white-space:nowrap;
}
.btn-primary{background-image:var(--grad-brand);background-size:160% 160%;background-position:0% 50%;color:#08110F;box-shadow:0 10px 26px rgba(20,200,166,.28);}
.btn-primary:hover{color:#08110F;text-decoration:none;transform:translateY(-2px);background-position:100% 50%;box-shadow:0 16px 34px rgba(20,200,166,.36);}
.btn-primary:active{transform:translateY(1px);}
.btn-ghost{background:rgba(242,250,248,.04);border-color:rgba(20,200,166,.45);color:var(--text-inverse);}
.btn-ghost:hover{color:#fff;text-decoration:none;background:rgba(20,200,166,.12);border-color:var(--brand-400);transform:translateY(-2px);}
.btn-outline{background:#fff;border-color:var(--line);color:var(--text-900);box-shadow:var(--shadow-1);}
.btn-outline:hover{color:var(--brand-700);text-decoration:none;border-color:rgba(20,200,166,.55);transform:translateY(-2px);box-shadow:var(--shadow-2);}
.btn-sm{padding:10px 20px;font-size:14px;min-height:42px;}

/* ---------- 顶部导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(10,17,19,.9);
  backdrop-filter:blur(12px);
  border-bottom:1px solid rgba(20,200,166,.22);
  transition:box-shadow .25s ease,background-color .25s ease;
}
.site-header::after{
  content:"";display:block;height:1px;
  background:linear-gradient(90deg,rgba(20,200,166,0),rgba(20,200,166,.85),rgba(255,122,69,.7),rgba(20,200,166,0));
  opacity:.85;
}
.site-header.is-scrolled{box-shadow:0 12px 30px rgba(4,10,11,.45);background:rgba(10,17,19,.97);}
.nav-inner{display:flex;align-items:center;gap:20px;height:74px;}
.brand{display:flex;align-items:center;gap:11px;flex:0 0 auto;}
.brand:hover{text-decoration:none;}
.brand-mark{
  width:38px;height:38px;border-radius:12px;flex:0 0 auto;
  background-image:var(--grad-brand);display:flex;align-items:center;justify-content:center;
  box-shadow:0 6px 18px rgba(20,200,166,.35);
}
.brand-mark svg{width:22px;height:22px;}
.brand-name{font-size:17px;font-weight:700;color:var(--text-inverse);letter-spacing:.01em;}
.brand-name em{font-style:normal;color:var(--brand-400);}
.nav-links{display:flex;align-items:center;gap:4px;margin-left:auto;}
.nav-links a{
  position:relative;display:flex;align-items:center;
  padding:10px 14px;border-radius:10px;font-size:14.5px;font-weight:500;
  color:rgba(242,250,248,.74);min-height:44px;
}
.nav-links a:hover{color:#fff;text-decoration:none;background:rgba(20,200,166,.1);}
.nav-links a::after{
  content:"";position:absolute;left:14px;right:14px;bottom:2px;height:2px;border-radius:2px;
  background:var(--grad-brand);transform:scaleX(0);transform-origin:left;transition:transform .25s ease;
}
.nav-links a.is-active{color:var(--brand-400);text-shadow:0 0 14px rgba(55,220,187,.55);}
.nav-links a.is-active::after{transform:scaleX(1);}
.nav-actions{display:flex;align-items:center;gap:12px;}
.nav-toggle{
  display:none;width:46px;height:46px;border-radius:12px;
  border:1px solid rgba(20,200,166,.35);background:rgba(20,200,166,.08);
  flex-direction:column;align-items:center;justify-content:center;gap:5px;
}
.nav-toggle span{display:block;width:18px;height:2px;border-radius:2px;background:var(--brand-400);transition:transform .25s ease,opacity .25s ease;}
body.nav-open .nav-toggle span:nth-child(1){transform:translateY(7px) rotate(45deg);}
body.nav-open .nav-toggle span:nth-child(2){opacity:0;}
body.nav-open .nav-toggle span:nth-child(3){transform:translateY(-7px) rotate(-45deg);}

/* ---------- Hero ---------- */
.hero{
  position:relative;overflow:hidden;
  background-color:var(--ink-900);
  background-image:radial-gradient(900px 420px at 12% -10%,rgba(20,200,166,.24),transparent 62%),
                   radial-gradient(720px 380px at 92% 12%,rgba(255,122,69,.2),transparent 60%),
                   linear-gradient(180deg,#0A1113 0%,#101A1D 100%);
  color:var(--text-inverse);
  padding:76px 0 72px;
}
.hero::before{
  content:"";position:absolute;inset:0;
  background-image:url('/assets/images/backpic/back-1.webp');
  background-size:cover;background-position:center;opacity:.14;mix-blend-mode:luminosity;pointer-events:none;
}
.hero .container{position:relative;z-index:2;}
.hero-grid{display:grid;grid-template-columns:1.08fr .92fr;gap:52px;align-items:center;}
.hero-eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  padding:7px 16px;border-radius:999px;font-size:13px;letter-spacing:.04em;
  color:var(--brand-400);background:rgba(20,200,166,.1);border:1px solid rgba(20,200,166,.35);
  margin-bottom:20px;
}
.hero h1{color:#fff;font-size:clamp(28px,3.5vw,42px);line-height:1.24;letter-spacing:.01em;}
.hero h1 span{color:var(--brand-400);}
.hero-sub{margin-top:18px;font-size:16.5px;color:rgba(242,250,248,.76);max-width:560px;}
.hero-cta{display:flex;flex-wrap:wrap;gap:14px;margin-top:30px;}
.hero-tags{display:flex;flex-wrap:wrap;gap:10px;margin-top:26px;}
.hero-tags span{
  font-size:13px;color:rgba(242,250,248,.72);
  padding:6px 14px;border-radius:999px;background:rgba(242,250,248,.06);
  border:1px solid rgba(242,250,248,.12);
}
.hero-visual{position:relative;}
.hero-visual img{
  width:100%;border-radius:26px;border:1px solid rgba(20,200,166,.32);
  box-shadow:0 24px 60px rgba(0,0,0,.45),0 0 34px rgba(20,200,166,.14);
  aspect-ratio:16/11;object-fit:cover;
}
.hero-badges{display:flex;flex-wrap:wrap;gap:12px;margin-top:20px;}

/* ---------- 数据徽章 ---------- */
.stat-badge{
  display:flex;flex-direction:column;gap:2px;
  padding:14px 20px;border-radius:18px;min-width:132px;
  background:rgba(16,26,29,.72);border:1px solid rgba(20,200,166,.32);
  box-shadow:0 0 0 1px rgba(20,200,166,.14),0 0 22px rgba(20,200,166,.12);
}
.stat-badge .num{font-size:28px;font-weight:800;line-height:1.1;color:var(--brand-400);letter-spacing:.01em;}
.stat-badge .num.amber{color:var(--accent-300);}
.stat-badge .label{font-size:13px;color:rgba(242,250,248,.7);}
.stat-badge.light{background:#fff;border-color:var(--line);box-shadow:var(--shadow-1);}
.stat-badge.light .num{color:var(--brand-700);}
.stat-badge.light .label{color:var(--text-500);}

/* ---------- 板块通用 ---------- */
.section{padding:96px 0;}
.section.paper{background:var(--paper-50);}
.section.white{background:#fff;}
.section.dark{background:var(--ink-900);color:var(--text-inverse);}
.section-head{max-width:760px;margin-bottom:38px;}
.section-head h2{font-size:clamp(24px,2.8vw,34px);}
.section-head p{margin-top:14px;color:var(--text-500);font-size:16px;}
.section.dark .section-head h2{color:#fff;}
.section.dark .section-head p{color:rgba(242,250,248,.72);}
.eyebrow{
  display:inline-block;font-size:13px;font-weight:600;letter-spacing:.08em;
  color:var(--brand-700);background:rgba(20,200,166,.1);
  padding:5px 14px;border-radius:999px;margin-bottom:14px;
}
.section.dark .eyebrow{color:var(--brand-400);background:rgba(20,200,166,.14);}

/* ---------- 情形横条列表 ---------- */
.case-list{display:grid;gap:16px;}
.case-bar{
  display:grid;grid-template-columns:150px 1fr auto;align-items:center;gap:20px;
  padding:20px 26px;border-radius:var(--radius-md);background:#fff;
  border:1px solid var(--line);box-shadow:var(--shadow-1);
  transition:transform .24s ease,box-shadow .24s ease,border-color .24s ease,background-color .24s ease;
}
.case-bar:hover{transform:translateY(-3px);border-color:rgba(20,200,166,.45);box-shadow:var(--shadow-2);background:#FBFFFE;text-decoration:none;}
.case-bar .tag{
  display:inline-flex;align-items:center;justify-content:center;
  padding:6px 14px;border-radius:999px;font-size:13px;font-weight:600;
  color:var(--brand-700);background:rgba(20,200,166,.1);border:1px solid rgba(20,200,166,.24);
  white-space:nowrap;
}
.case-bar .txt{font-size:15.5px;color:var(--text-700);}
.case-bar .arrow{color:var(--brand-700);transition:transform .24s ease;}
.case-bar:hover .arrow{transform:translateX(4px);}

/* ---------- Tabs ---------- */
.tabs-shell{margin-top:8px;}
.tabs-nav{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:26px;}
.tabs-nav button{
  padding:11px 22px;border-radius:999px;font-size:14.5px;font-weight:600;
  color:var(--text-700);background:var(--paper-100);border:1px solid transparent;
  min-height:44px;transition:all .22s ease;
}
.tabs-nav button:hover{color:var(--brand-700);border-color:rgba(20,200,166,.4);}
.tabs-nav button.is-active{background-image:var(--grad-brand);color:#08110F;box-shadow:0 10px 24px rgba(20,200,166,.26);}
.tab-panel{display:none;}
.tab-panel.is-active{display:block;animation:fadeIn .32s ease;}
@keyframes fadeIn{from{opacity:0;transform:translateY(6px);}to{opacity:1;transform:none;}}

/* ---------- 对比表 ---------- */
.cmp-wrap{
  position:relative;border-radius:var(--radius-lg);background:#fff;
  border:1px solid var(--line);box-shadow:var(--shadow-1);overflow:hidden;
}
.cmp-scroll{overflow-x:auto;-webkit-overflow-scrolling:touch;}
table.cmp-table{width:100%;min-width:720px;border-collapse:collapse;font-size:15px;}
table.cmp-table thead th{
  background:var(--paper-100);color:var(--text-900);font-weight:700;
  text-align:left;padding:16px 20px;font-size:14px;letter-spacing:.02em;
  border-bottom:1px solid var(--line);white-space:nowrap;
}
table.cmp-table tbody td{
  padding:16px 20px;border-bottom:1px solid #EDF2F0;color:var(--text-700);vertical-align:top;
}
table.cmp-table tbody tr:nth-child(even){background:#FAFCFB;}
table.cmp-table tbody tr:last-child td{border-bottom:0;}
table.cmp-table td strong{color:var(--text-900);}
.cmp-scroll::after{
  content:"";position:absolute;top:0;right:0;bottom:0;width:36px;pointer-events:none;
  background:linear-gradient(90deg,rgba(255,255,255,0),rgba(255,255,255,.92));
}
.cmp-note{margin-top:14px;font-size:13.5px;color:var(--text-500);}

/* ---------- 核对清单 ---------- */
.check-list{position:relative;padding-left:38px;display:grid;gap:26px;}
.check-list::before{
  content:"";position:absolute;left:11px;top:8px;bottom:8px;width:2px;
  background:linear-gradient(180deg,rgba(20,200,166,.75),rgba(255,122,69,.35),rgba(20,200,166,0));
  border-radius:2px;
}
.check-item{position:relative;}
.check-item .idx{
  position:absolute;left:-38px;top:2px;width:24px;height:24px;border-radius:50%;
  background-image:var(--grad-brand);color:#08110F;font-size:12px;font-weight:800;
  display:flex;align-items:center;justify-content:center;
}
.check-item h3{font-size:19px;font-weight:600;margin-bottom:6px;}
.check-item p{color:var(--text-500);font-size:15.2px;}
.check-item h3 .dim{color:var(--brand-700);font-weight:700;margin-right:6px;}
.simple-list{display:grid;gap:14px;}
.simple-list li{
  display:flex;gap:12px;align-items:flex-start;
  padding:16px 20px;border-radius:var(--radius-xs);background:#fff;
  border:1px solid var(--line);box-shadow:var(--shadow-1);font-size:15.2px;
}
.simple-list li i{color:var(--brand-500);margin-top:5px;}
.section.dark .simple-list li{background:rgba(242,250,248,.04);border-color:rgba(20,200,166,.24);color:rgba(242,250,248,.86);box-shadow:none;}

/* ---------- 图文块 ---------- */
.split{display:grid;grid-template-columns:1.02fr .98fr;gap:52px;align-items:center;}
.split.reverse .split-media{order:2;}
.split-media img{
  width:100%;border-radius:var(--radius-lg);border:1px solid var(--line);
  box-shadow:var(--shadow-2);aspect-ratio:16/11;object-fit:cover;
}
.split h2{font-size:clamp(23px,2.5vw,30px);}
.split p.lead{margin-top:16px;color:var(--text-500);}
.split .badges{display:flex;flex-wrap:wrap;gap:12px;margin-top:24px;}
.point-list{margin-top:22px;display:grid;gap:14px;}
.point-list li{display:flex;gap:12px;align-items:flex-start;font-size:15.4px;color:var(--text-700);}
.point-list li i{color:var(--brand-500);margin-top:5px;}

/* ---------- FAQ ---------- */
.faq-list{display:grid;gap:14px;}
.faq-item{
  border-radius:16px !important;background:#fff;border:1px solid var(--line);
  box-shadow:var(--shadow-1);overflow:hidden;
  transition:border-color .24s ease,box-shadow .24s ease;
}
.faq-item.is-open{border-color:rgba(20,200,166,.5);box-shadow:var(--shadow-2);}
.accordion-title.faq-q{
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  width:100%;text-align:left;padding:20px 24px;font-size:16.5px;font-weight:600;
  color:var(--text-900);background:transparent;min-height:44px;position:relative;
}
.accordion-title.faq-q::before{display:none !important;}
.faq-item.is-open .faq-q{color:var(--brand-700);}
.faq-item.is-open .faq-q::after{
  content:"";position:absolute;left:0;top:14px;bottom:14px;width:3px;border-radius:3px;
  background:var(--grad-brand);box-shadow:0 0 12px rgba(20,200,166,.7);
}
.faq-q .chev{color:var(--brand-700);transition:transform .28s ease;font-size:15px;flex:0 0 auto;}
.faq-item.is-open .chev{transform:rotate(180deg);}
.accordion-content.faq-a{
  display:none;padding:0 24px 22px;color:var(--text-500);font-size:15.2px;line-height:1.85;
}
.faq-item.is-open .faq-a{display:block;}

/* ---------- CTA ---------- */
.cta-wrap{
  border-radius:28px;padding:38px 42px;
  background:linear-gradient(180deg,#0A1113,#101A1D);
  border:1px solid transparent;
  background-clip:padding-box;position:relative;overflow:hidden;
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:26px;
}
.cta-wrap::before{
  content:"";position:absolute;inset:0;padding:1px;border-radius:28px;
  background:var(--grad-brand);-webkit-mask:linear-gradient(#000 0 0) content-box,linear-gradient(#000 0 0);
  -webkit-mask-composite:xor;mask-composite:exclude;pointer-events:none;
}
.cta-wrap h2{color:#fff;font-size:clamp(22px,2.3vw,28px);}
.cta-wrap p{color:rgba(242,250,248,.72);margin-top:10px;font-size:15.4px;}
.cta-side{display:flex;flex-direction:column;gap:10px;align-items:flex-start;}
.cta-side .foot-note{font-size:13px;color:rgba(242,250,248,.55);}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px;}

/* ---------- 表单 / 弹层 ---------- */
.modal{position:fixed;inset:0;z-index:90;display:none;}
.modal.is-open{display:block;}
.modal-mask{position:absolute;inset:0;background:rgba(6,12,14,.72);backdrop-filter:blur(4px);}
.modal-card{
  position:relative;z-index:2;max-width:480px;margin:9vh auto 0;background:#fff;
  border-radius:var(--radius-lg);padding:32px;box-shadow:0 28px 70px rgba(4,10,11,.45);
  animation:fadeIn .28s ease;
}
.modal-card h3{font-size:21px;}
.modal-card > p{margin-top:10px;color:var(--text-500);font-size:14.6px;}
.modal-close{
  position:absolute;top:14px;right:14px;width:40px;height:40px;border-radius:12px;
  background:var(--paper-100);color:var(--text-700);font-size:16px;
}
.modal-close:hover{background:rgba(20,200,166,.14);color:var(--brand-700);}
.contact-form{margin-top:22px;display:grid;gap:16px;}
.field label{display:block;font-size:13.5px;font-weight:600;color:var(--text-900);margin-bottom:8px;}
.field input,.field textarea{
  width:100%;padding:12px 14px;border-radius:var(--radius-xs);
  border:1px solid var(--line);background:#FBFDFC;color:var(--text-900);
  transition:border-color .2s ease,box-shadow .2s ease;min-height:46px;
}
.field input:focus,.field textarea:focus{
  outline:none;border-color:var(--brand-500);box-shadow:0 0 0 3px rgba(20,200,166,.14);background:#fff;
}
.form-hint{font-size:13px;color:var(--text-500);margin-top:2px;}
.form-status{font-size:13.5px;color:var(--brand-700);min-height:20px;}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--ink-900);color:rgba(242,250,248,.72);font-size:14.6px;position:relative;}
.site-footer::before{
  content:"";display:block;height:1px;
  background:linear-gradient(90deg,rgba(20,200,166,0),rgba(20,200,166,.8),rgba(255,122,69,.6),rgba(20,200,166,0));
}
.footer-main{padding:62px 0 42px;}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:36px;}
.footer-brand{display:flex;align-items:center;gap:11px;margin-bottom:16px;}
.footer-brand .brand-mark{width:36px;height:36px;border-radius:11px;}
.footer-brand .brand-name{font-size:16.5px;font-weight:700;color:var(--text-inverse);}
.footer-desc{color:rgba(242,250,248,.6);font-size:14px;max-width:300px;}
.footer-col h4{color:#fff;font-size:15px;margin-bottom:18px;font-weight:600;}
.footer-col ul{display:grid;gap:12px;}
.footer-col a{color:rgba(242,250,248,.68);font-size:14.4px;}
.footer-col a:hover{color:var(--brand-400);text-decoration:none;}
.footer-bottom{
  border-top:1px solid rgba(242,250,248,.1);padding:20px 0 26px;
  display:flex;flex-wrap:wrap;gap:10px;justify-content:space-between;
  font-size:13.4px;color:rgba(242,250,248,.5);
}

/* ---------- 面包屑 ---------- */
.breadcrumb{
  display:flex;flex-wrap:wrap;align-items:center;gap:8px;
  font-size:13.5px;color:var(--text-500);padding:20px 0 0;
}
.breadcrumb a{color:var(--text-500);}
.breadcrumb a:hover{color:var(--brand-700);text-decoration:none;}
.breadcrumb .sep{color:#B6C6C2;}
.breadcrumb .current{color:var(--brand-700);font-weight:600;}

/* ---------- 响应式 ---------- */
@media (max-width:1024px){
  .hero{padding:58px 0 56px;}
  .hero-grid{grid-template-columns:1fr;gap:38px;}
  .hero-visual{order:2;}
  .split{grid-template-columns:1fr;gap:34px;}
  .split.reverse .split-media{order:0;}
  .section{padding:64px 0;}
  .footer-grid{grid-template-columns:1fr 1fr;}
  .nav-links{
    position:fixed;top:75px;left:0;right:0;z-index:70;
    flex-direction:column;align-items:stretch;gap:4px;margin:0;
    background:rgba(10,17,19,.985);border-bottom:1px solid rgba(20,200,166,.28);
    padding:18px 20px 26px;
    transform:translateY(-14px);opacity:0;visibility:hidden;pointer-events:none;
    transition:transform .26s ease,opacity .26s ease,visibility .26s;
    max-height:calc(100vh - 75px);overflow-y:auto;
  }
  body.nav-open .nav-links{transform:translateY(0);opacity:1;visibility:visible;pointer-events:auto;}
  .nav-links a{padding:14px 12px;font-size:16px;justify-content:flex-start;}
  .nav-links a::after{left:12px;right:auto;width:60px;}
  .nav-toggle{display:flex;}
}
@media (max-width:768px){
  body{font-size:16px;}
  .hero{padding:48px 0 50px;}
  .hero-cta .btn{width:100%;}
  .case-bar{grid-template-columns:1fr;gap:12px;padding:18px 20px;}
  .case-bar .tag{justify-self:start;}
  .case-bar .arrow{display:none;}
  .cta-wrap{padding:28px 24px;}
  .cta-side{width:100%;}
  .cta-actions{width:100%;}
  .cta-actions .btn{width:100%;}
  .footer-grid{grid-template-columns:1fr;gap:28px;}
  .stats-row{display:grid;grid-template-columns:repeat(2,1fr);gap:12px;}
  .stat-badge{min-width:0;}
}
@media (max-width:520px){
  :root{--gutter:18px;}
  .section{padding:48px 0;}
  .brand-name{font-size:15.5px;}
  .hero h1{font-size:27px;}
  .hero-badges{display:grid;grid-template-columns:repeat(2,1fr);gap:10px;}
  .stat-badge .num{font-size:24px;}
  table.cmp-table{min-width:640px;}
  .footer-bottom{flex-direction:column;gap:6px;}
}