/* roulang page: index */
:root{
  --c-brand:#0E3B33;
  --c-brand-deep:#082A24;
  --c-brand-soft:#17594C;
  --c-accent:#C6F24E;
  --c-cta:#FF7A2F;
  --c-bg:#F6F4EE;
  --c-surface:#FFFFFF;
  --c-surface-alt:#EDEAE1;
  --c-ink:#16211E;
  --c-ink-2:#45524E;
  --c-ink-3:#7C8783;
  --c-line:#D9D4C7;
  --c-line-dark:rgba(255,255,255,.14);
  --c-ok:#2E9E6B;
  --c-warn:#D98A00;
  --c-err:#C4453C;
  --r-xs:6px;
  --r-sm:10px;
  --r-md:14px;
  --r-lg:20px;
  --r-pill:999px;
  --sh-1:0 1px 2px rgba(12,42,36,.06);
  --sh-2:0 8px 24px rgba(12,42,36,.08);
  --sh-3:0 16px 40px rgba(12,42,36,.14);
  --ff-cn:"Noto Sans SC","Source Han Sans SC","PingFang SC","Microsoft YaHei",system-ui,sans-serif;
  --ff-num:"Barlow","Barlow Condensed",Inter,system-ui,sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;background:var(--c-bg);color:var(--c-ink);
  font-family:var(--ff-cn);font-size:16px;line-height:1.8;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;height:auto}
a{color:inherit;text-decoration:none}
button,input{font-family:inherit;font-size:inherit}
button{cursor:pointer}
h1,h2,h3,h4{margin:0;line-height:1.32;font-weight:700;letter-spacing:.2px}
p{margin:0}
ul,ol{margin:0;padding:0;list-style:none}
:focus-visible{outline:2px solid var(--c-accent);outline-offset:2px;border-radius:4px}
.container{width:100%;max-width:1240px;margin:0 auto;padding:0 24px}
@media(min-width:768px){.container{padding:0 32px}}
@media(min-width:1200px){.container{padding:0 40px}}
.section{padding:56px 0;scroll-margin-top:140px}
@media(min-width:768px){.section{padding:88px 0}}
@media(min-width:1200px){.section{padding:112px 0}}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:20px;margin-bottom:32px;flex-wrap:wrap}
.section-head h2{font-size:clamp(26px,3vw,34px);font-weight:700}
.section-head p{margin-top:12px;color:var(--c-ink-2);font-size:16px;max-width:62ch}
.eyebrow{display:inline-flex;align-items:center;gap:8px;font-family:var(--ff-num);font-size:13px;font-weight:600;letter-spacing:.06em;text-transform:uppercase;color:var(--c-brand-soft)}
.eyebrow::before{content:"";width:22px;height:2px;background:var(--c-accent);display:inline-block}

/* ---------- buttons ---------- */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;height:48px;padding:0 26px;border-radius:var(--r-sm);font-size:15px;font-weight:600;border:1.5px solid transparent;transition:background-color .18s ease-out,color .18s ease-out,border-color .18s ease-out,transform .18s ease-out,box-shadow .18s ease-out}
.btn:active{transform:translateY(1px)}
.btn-primary{background:var(--c-accent);color:var(--c-brand)}
.btn-primary:hover{filter:brightness(.95);box-shadow:var(--sh-2)}
.btn-ghost{background:transparent;border-color:rgba(255,255,255,.5);color:#fff}
.btn-ghost:hover{background:#fff;color:var(--c-brand);border-color:#fff}
.btn-outline{background:transparent;border-color:var(--c-brand);color:var(--c-brand)}
.btn-outline:hover{background:var(--c-brand);color:#fff}
.btn-cta{background:var(--c-cta);color:#fff}
.btn-cta:hover{filter:brightness(.95);box-shadow:var(--sh-2)}
.btn-block{width:100%}
.link-more{display:inline-flex;align-items:center;gap:6px;font-size:15px;font-weight:600;color:var(--c-brand);padding-bottom:2px;border-bottom:2px solid var(--c-accent);transition:gap .18s ease-out}
.link-more:hover{gap:10px}

/* ---------- badges ---------- */
.badge{display:inline-flex;align-items:center;height:24px;padding:0 10px;border-radius:var(--r-pill);font-size:12px;font-weight:600;line-height:1}
.badge-cat{background:var(--c-surface-alt);color:var(--c-brand)}
.badge-rec{background:var(--c-cta);color:#fff}
.badge-line{border:1px solid var(--c-line);color:var(--c-ink-2);background:transparent}

/* ---------- header ---------- */
.site-header{position:sticky;top:0;z-index:60;background:transparent;border-bottom:1px solid var(--c-line);transition:background-color .2s ease-out,box-shadow .2s ease-out}
.site-header.is-scrolled{background:rgba(246,244,238,.92);box-shadow:var(--sh-1);backdrop-filter:blur(8px)}
.nav-wrap{display:flex;align-items:center;gap:24px;min-height:76px}
.logo{display:inline-flex;align-items:center;gap:10px;flex:0 0 auto;font-size:17px;font-weight:800;color:var(--c-brand);letter-spacing:0}
.logo-mark{width:36px;height:36px;border-radius:11px;background:var(--c-brand);display:grid;place-items:center;flex:0 0 auto}
.logo-mark svg{width:22px;height:22px}
.logo-text em{font-style:normal;font-weight:600;color:var(--c-brand-soft);padding-left:.15em}
.nav-search{position:relative;display:flex;align-items:center;flex:1 1 auto;max-width:560px;margin:0 auto;height:48px;background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-pill);padding:0 6px 0 16px;transition:border-color .18s ease-out,box-shadow .18s ease-out}
.nav-search:hover{border-color:var(--c-brand-soft)}
.nav-search:focus-within{border-color:var(--c-brand);box-shadow:0 0 0 4px rgba(198,242,78,.28)}
.nav-search .search-icon{width:20px;height:20px;flex:0 0 auto;color:var(--c-ink-3)}
.nav-search input{flex:1 1 auto;min-width:0;height:100%;border:0;background:transparent;color:var(--c-ink);font-size:15px;outline:none;padding:0 12px}
.nav-search input::placeholder{color:var(--c-ink-3)}
.nav-search button{flex:0 0 auto;height:38px;padding:0 20px;border:0;border-radius:var(--r-pill);background:var(--c-accent);color:var(--c-brand);font-size:14px;font-weight:600;transition:filter .18s ease-out,transform .18s ease-out}
.nav-search button:hover{filter:brightness(.95)}
.nav-search button:active{transform:translateY(1px)}
.nav-links{display:flex;align-items:center;gap:2px;flex:0 0 auto}
.nav-links a{position:relative;display:inline-flex;align-items:center;height:76px;padding:0 12px;font-size:15px;font-weight:500;color:var(--c-ink-2);transition:color .18s ease-out}
.nav-links a::after{content:"";position:absolute;left:12px;right:12px;bottom:22px;height:2px;background:var(--c-accent);transform:scaleX(0);transform-origin:left;transition:transform .18s ease-out}
.nav-links a:hover{color:var(--c-brand)}
.nav-links a:hover::after{transform:scaleX(1)}
.nav-links a.is-active{color:var(--c-brand);font-weight:700}
.nav-links a.is-active::after{transform:scaleX(1)}
.nav-toggle{display:none;width:44px;height:44px;border:1px solid var(--c-line);border-radius:var(--r-sm);background:var(--c-surface);align-items:center;justify-content:center;flex-direction:column;gap:4px}
.nav-toggle span{display:block;width:18px;height:2px;background:var(--c-brand);border-radius:2px;transition:transform .18s ease-out,opacity .18s ease-out}
.nav-toggle[aria-expanded="true"] span:nth-child(1){transform:translateY(6px) rotate(45deg)}
.nav-toggle[aria-expanded="true"] span:nth-child(2){opacity:0}
.nav-toggle[aria-expanded="true"] span:nth-child(3){transform:translateY(-6px) rotate(-45deg)}
@media(max-width:991px){
  .nav-wrap{flex-wrap:wrap;min-height:auto;padding-top:10px;padding-bottom:12px;gap:10px}
  .logo{order:1}
  .nav-toggle{display:inline-flex;order:2;margin-left:auto}
  .nav-search{order:3;flex-basis:100%;max-width:none;margin:0;height:44px}
  .nav-links{order:4;flex-basis:100%;display:none;flex-direction:column;align-items:stretch;gap:0;border-top:1px solid var(--c-line);padding-top:6px}
  .nav-links.is-open{display:flex}
  .nav-links a{height:52px;padding:0 4px;font-size:16px;border-bottom:1px solid var(--c-line)}
  .nav-links a:last-child{border-bottom:0}
  .nav-links a::after{bottom:0;left:4px;right:auto;width:52px}
}

/* ---------- anchor bar ---------- */
.anchor-bar{position:sticky;top:76px;z-index:55;background:var(--c-surface);border-bottom:1px solid var(--c-line)}
.anchor-inner{display:flex;align-items:center;justify-content:center;gap:2px;height:52px;overflow-x:auto;scrollbar-width:none}
.anchor-inner::-webkit-scrollbar{display:none}
.anchor-inner a{position:relative;display:inline-flex;align-items:center;height:52px;padding:0 14px;font-size:15px;font-weight:500;color:var(--c-ink-2);white-space:nowrap;transition:color .18s ease-out}
.anchor-inner a::after{content:"";position:absolute;left:14px;right:14px;bottom:0;height:2px;background:var(--c-accent);transform:scaleX(0);transition:transform .18s ease-out}
.anchor-inner a:hover{color:var(--c-brand)}
.anchor-inner a.is-active{color:var(--c-brand);font-weight:700}
.anchor-inner a.is-active::after{transform:scaleX(1)}
@media(max-width:991px){
  .anchor-bar{position:static;top:auto}
  .anchor-inner{justify-content:flex-start;padding:0 12px}
}

/* ---------- hero ---------- */
.hero{position:relative;overflow:hidden;background:var(--c-brand-deep);color:#fff}
.hero-bg{position:absolute;inset:0;background-image:url("/assets/images/backpic/back-1.png");background-size:cover;background-position:center}
.hero-bg::after{content:"";position:absolute;inset:0;background:linear-gradient(115deg,rgba(8,42,36,.94) 0%,rgba(8,42,36,.84) 46%,rgba(8,42,36,.62) 100%)}
.hero-arc{position:absolute;border-radius:50%;border:1px solid rgba(198,242,78,.16);pointer-events:none}
.hero-arc.a{width:620px;height:620px;right:-220px;top:-200px}
.hero-arc.b{width:420px;height:420px;right:-80px;bottom:-220px;border-color:rgba(255,255,255,.10)}
.hero-inner{position:relative;z-index:1;display:grid;grid-template-columns:1fr;gap:40px;padding-top:56px;padding-bottom:56px}
.hero-eyebrow{display:inline-flex;align-items:center;gap:8px;padding:6px 14px;border-radius:var(--r-pill);border:1px solid rgba(198,242,78,.42);color:var(--c-accent);font-size:13px;letter-spacing:.06em}
.hero-title{font-size:clamp(34px,5vw,56px);font-weight:800;line-height:1.18;margin:20px 0 16px;letter-spacing:0}
.hero-sub{font-size:17px;color:rgba(255,255,255,.80);max-width:32em}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:28px}
.hero-facts{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:16px;margin-top:40px;padding-top:28px;border-top:1px solid var(--c-line-dark)}
.hero-facts strong{display:block;font-family:var(--ff-num);font-size:clamp(24px,2.6vw,36px);font-weight:700;color:var(--c-accent);line-height:1.1}
.hero-facts span{display:block;margin-top:6px;font-size:13px;color:rgba(255,255,255,.66)}
.hero-media{position:relative}
.hero-media img{width:100%;aspect-ratio:16/11;object-fit:cover;border-radius:var(--r-lg);border:1px solid rgba(255,255,255,.18);box-shadow:var(--sh-3)}
.hero-media .hero-tag{position:absolute;left:18px;bottom:18px;display:inline-flex;align-items:center;gap:8px;height:34px;padding:0 14px;border-radius:var(--r-pill);background:rgba(8,42,36,.78);border:1px solid rgba(198,242,78,.36);color:#fff;font-size:13px}
@media(min-width:992px){
  .hero-inner{grid-template-columns:1.05fr .95fr;gap:56px;align-items:center;padding-top:84px;padding-bottom:84px}
}

/* ---------- feature rows ---------- */
.feature-row{display:grid;grid-template-columns:1fr;gap:28px;align-items:center;padding:32px 0;border-bottom:1px solid var(--c-line)}
.feature-row:last-child{border-bottom:0}
.feature-row h3{font-size:clamp(19px,2.2vw,22px);font-weight:600;margin-bottom:12px}
.feature-row p{color:var(--c-ink-2);margin-bottom:12px}
.feature-row img{width:100%;aspect-ratio:4/3;object-fit:cover;border-radius:var(--r-md);box-shadow:var(--sh-2)}
.feature-list li{position:relative;padding-left:22px;font-size:15px;color:var(--c-ink-2);line-height:1.9}
.feature-list li::before{content:"";position:absolute;left:0;top:12px;width:8px;height:8px;border-radius:2px;background:var(--c-accent)}
.feature-index{font-family:var(--ff-num);font-size:13px;font-weight:700;letter-spacing:.06em;color:var(--c-brand-soft)}
@media(min-width:900px){
  .feature-row{grid-template-columns:1fr 1fr;gap:56px;padding:44px 0}
  .feature-row.reverse .feature-copy{order:2}
  .feature-row.reverse .feature-media{order:1}
}

/* ---------- demo ---------- */
.demo-grid{display:grid;grid-template-columns:1fr;gap:32px;align-items:start}
.demo-media img{width:100%;aspect-ratio:16/9;object-fit:cover;border-radius:var(--r-lg);box-shadow:var(--sh-2)}
.demo-points li{display:flex;gap:16px;padding:18px 0;border-bottom:1px solid var(--c-line)}
.demo-points li:last-child{border-bottom:0}
.demo-points .num{font-family:var(--ff-num);font-size:26px;font-weight:700;color:var(--c-brand);opacity:.55;line-height:1.1;flex:0 0 auto}
.demo-points h3{font-size:17px;font-weight:600}
.demo-points p{font-size:15px;color:var(--c-ink-2)}
.steps{display:grid;grid-template-columns:1fr;gap:0;margin-top:40px;border-top:1px solid var(--c-line);padding-top:28px}
.steps li{position:relative;padding:14px 0 14px 26px;font-size:15px;color:var(--c-ink-2)}
.steps li::before{content:"";position:absolute;left:0;top:22px;width:12px;height:12px;border-radius:50%;background:var(--c-accent);border:2px solid var(--c-brand)}
.steps li strong{color:var(--c-ink);font-weight:600;padding-right:.3em}
@media(min-width:768px){
  .steps{grid-template-columns:repeat(4,1fr);gap:0}
  .steps li{padding:22px 20px 0 0}
  .steps li::before{top:0}
  .steps li::after{content:"";position:absolute;left:12px;right:0;top:5px;height:1px;background:var(--c-line)}
  .steps li:last-child::after{display:none}
}
@media(min-width:992px){
  .demo-grid{grid-template-columns:1.4fr 1fr;gap:48px}
}

/* ---------- proof ---------- */
.proof-band{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:18px}
.proof-card{background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-xs);padding:22px 20px;position:relative;overflow:hidden;box-shadow:var(--sh-1)}
.proof-card::before{content:"";position:absolute;top:0;left:0;right:0;height:3px;background:var(--c-accent)}
.proof-card strong{display:block;font-family:var(--ff-num);font-size:clamp(34px,4vw,48px);font-weight:700;color:var(--c-brand);line-height:1.05}
.proof-card strong em{font-style:normal;font-size:13px;font-weight:500;color:var(--c-ink-3);padding-left:.4em}
.proof-card span{display:block;margin-top:8px;font-size:15px;color:var(--c-ink-2)}
@media(min-width:900px){.proof-band{grid-template-columns:repeat(4,minmax(0,1fr));gap:20px}}
.quote-grid{display:grid;grid-template-columns:1fr;gap:18px;margin-top:36px}
.quote{background:var(--c-surface-alt);border-left:3px solid var(--c-accent);border-radius:var(--r-sm);padding:22px 24px}
.quote p{font-size:16px;color:var(--c-ink);line-height:1.85}
.quote cite{display:block;margin-top:12px;font-style:normal;font-size:13px;color:var(--c-ink-3)}
@media(min-width:768px){.quote-grid{grid-template-columns:1fr 1fr;gap:24px}}

/* ---------- plans ---------- */
.plan-grid{display:grid;grid-template-columns:1fr;gap:20px}
.plan-card{position:relative;display:flex;flex-direction:column;gap:16px;background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-lg);padding:28px 26px;box-shadow:var(--sh-1);transition:transform .2s ease-out,box-shadow .2s ease-out}
.plan-card:hover{transform:translateY(-3px);box-shadow:var(--sh-2)}
.plan-card h3{font-size:19px;font-weight:600}
.plan-card .plan-price{font-family:var(--ff-num);font-size:34px;font-weight:700;color:var(--c-brand);line-height:1.1}
.plan-card .plan-price em{font-style:normal;font-size:14px;font-weight:500;color:var(--c-ink-3);padding-left:.4em}
.plan-card p{font-size:15px;color:var(--c-ink-2)}
.plan-features li{position:relative;padding-left:26px;font-size:15px;color:var(--c-ink-2);line-height:2}
.plan-features li::before{content:"";position:absolute;left:0;top:13px;width:14px;height:8px;border-left:2px solid var(--c-ok);border-bottom:2px solid var(--c-ok);transform:rotate(-45deg)}
.plan-card--featured{background:var(--c-brand-deep);border-color:transparent;color:#fff;box-shadow:var(--sh-3)}
.plan-card--featured::before{content:"";position:absolute;top:0;left:0;right:0;height:4px;background:var(--c-accent);border-radius:var(--r-lg) var(--r-lg) 0 0}
.plan-card--featured h3,.plan-card--featured .plan-price{color:#fff}
.plan-card--featured .plan-price em{color:rgba(255,255,255,.6)}
.plan-card--featured p,.plan-card--featured .plan-features li{color:rgba(255,255,255,.78)}
.plan-card--featured .plan-features li::before{border-color:var(--c-accent)}
.plan-badge{position:absolute;top:20px;right:20px}
.plan-note{margin-top:24px;font-size:14px;color:var(--c-ink-3);display:flex;flex-wrap:wrap;gap:12px;align-items:center}
@media(min-width:768px){.plan-grid{grid-template-columns:repeat(3,1fr);align-items:start;gap:24px}}
@media(min-width:992px){.plan-card--featured{margin-top:-12px;padding-bottom:40px}}

/* ---------- FAQ ---------- */
.faq-wrap{max-width:860px;margin:0 auto}
.faq-item{background:var(--c-surface);border:1px solid var(--c-line);border-radius:12px;margin-bottom:12px;overflow:hidden;transition:border-color .18s ease-out}
.faq-item.is-open{border-color:var(--c-brand-soft);box-shadow:var(--sh-1)}
.faq-q{margin:0;font-size:17px;font-weight:600}
.faq-toggle{width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;background:transparent;border:0;text-align:left;padding:20px 24px;font-size:17px;font-weight:600;color:var(--c-ink)}
.faq-icon{position:relative;flex:0 0 auto;width:18px;height:18px}
.faq-icon::before,.faq-icon::after{content:"";position:absolute;background:var(--c-brand);border-radius:2px;transition:transform .2s ease-out}
.faq-icon::before{left:0;top:8px;width:18px;height:2px}
.faq-icon::after{left:8px;top:0;width:2px;height:18px}
.faq-item.is-open .faq-icon::after{transform:rotate(90deg) scaleX(0)}
.faq-a{max-height:0;overflow:hidden;transition:max-height .2s ease-out}
.faq-a p{padding:0 24px 22px;font-size:16px;color:var(--c-ink-2);line-height:1.8}
.faq-item.is-open{position:relative}
.faq-item.is-open::after{content:"";position:absolute;left:0;top:0;bottom:0;width:3px;background:var(--c-accent)}

/* ---------- news / CMS ---------- */
.news-grid{display:grid;grid-template-columns:1fr;gap:20px}
.news-card{position:relative;background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-md);overflow:hidden;transition:transform .2s ease-out,box-shadow .2s ease-out}
.news-card:hover{transform:translateY(-3px);box-shadow:var(--sh-3)}
.news-card:hover .news-title{text-decoration:underline;text-decoration-color:var(--c-accent);text-decoration-thickness:2px;text-underline-offset:4px}
.news-link{display:flex;flex-direction:column;height:100%}
.news-thumb{position:relative;overflow:hidden}
.news-thumb img{width:100%;aspect-ratio:16/9;object-fit:cover;transition:transform .3s ease-out}
.news-card:hover .news-thumb img{transform:scale(1.04)}
.news-thumb .badge{position:absolute;left:12px;top:12px}
.news-body{display:flex;flex-direction:column;gap:10px;padding:18px 20px 20px;flex:1 1 auto}
.news-title{font-size:17px;font-weight:600;line-height:1.5;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.news-desc{font-size:15px;color:var(--c-ink-2);line-height:1.75;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.news-meta{display:flex;align-items:center;justify-content:space-between;margin-top:auto;padding-top:12px;border-top:1px solid var(--c-line);font-family:var(--ff-num);font-size:13px;color:var(--c-ink-3)}
.news-arrow{font-family:var(--ff-cn);color:var(--c-brand);font-weight:600}
.news-empty{display:flex;flex-direction:column;align-items:center;justify-content:center;gap:14px;min-height:280px;background:var(--c-surface);border:1px dashed var(--c-line);border-radius:var(--r-lg);padding:40px 24px;text-align:center}
.news-empty svg{width:44px;height:44px;color:var(--c-ink-3)}
.news-empty p{font-size:15px;color:var(--c-ink-3)}
@media(min-width:768px){
  .news-grid{grid-template-columns:repeat(2,1fr)}
}
@media(min-width:992px){
  .news-grid{grid-template-columns:repeat(6,1fr);gap:24px}
  .news-card--lead{grid-column:span 6}
  .news-card--lead .news-link{flex-direction:row}
  .news-card--lead .news-thumb{flex:0 0 54%}
  .news-card--lead .news-thumb img{height:100%;aspect-ratio:16/10}
  .news-card--lead .news-body{padding:28px 30px}
  .news-card--lead .news-title{font-size:24px;-webkit-line-clamp:3}
  .news-card--lead .news-desc{font-size:16px;-webkit-line-clamp:3}
  .news-card:not(.news-card--lead){grid-column:span 2}
}

/* ---------- CTA band ---------- */
.cta-band{background:var(--c-brand-deep);color:#fff;position:relative;overflow:hidden}
.cta-band .cta-arc{position:absolute;width:560px;height:560px;border-radius:50%;border:1px solid rgba(198,242,78,.14);right:-200px;bottom:-300px;pointer-events:none}
.cta-grid{position:relative;z-index:1;display:grid;grid-template-columns:1fr;gap:36px}
.cta-band h2{font-size:clamp(26px,3vw,34px);font-weight:700}
.cta-band p{margin-top:14px;color:rgba(255,255,255,.76);max-width:44ch}
.cta-list{margin-top:24px;display:grid;gap:10px}
.cta-list li{position:relative;padding-left:22px;font-size:15px;color:rgba(255,255,255,.8)}
.cta-list li::before{content:"";position:absolute;left:0;top:12px;width:8px;height:8px;border-radius:2px;background:var(--c-accent)}
.form{background:rgba(255,255,255,.06);border:1px solid var(--c-line-dark);border-radius:var(--r-lg);padding:26px 24px}
.form .field{margin-bottom:16px}
.form label{display:block;font-size:14px;font-weight:500;margin-bottom:6px;color:rgba(255,255,255,.86)}
.form input,.form select,.form textarea{width:100%;height:48px;border-radius:var(--r-sm);border:1px solid rgba(255,255,255,.22);background:rgba(255,255,255,.06);color:#fff;padding:0 14px;font-size:15px;outline:none;transition:border-color .18s ease-out,box-shadow .18s ease-out}
.form textarea{height:auto;padding:12px 14px;resize:vertical;line-height:1.7}
.form input::placeholder,.form textarea::placeholder{color:rgba(255,255,255,.45)}
.form input:focus,.form select:focus,.form textarea:focus{border-color:var(--c-accent);box-shadow:0 0 0 4px rgba(198,242,78,.18)}
.form select option{color:var(--c-ink)}
.form .form-hint{font-size:13px;color:rgba(255,255,255,.55);margin-top:12px}
@media(min-width:992px){
  .cta-grid{grid-template-columns:1.05fr .95fr;gap:56px;align-items:center}
}

/* ---------- float cta ---------- */
.float-cta{position:fixed;right:32px;bottom:32px;z-index:40;display:flex;flex-direction:column;align-items:flex-end;gap:12px;opacity:0;transform:translateY(12px);pointer-events:none;transition:opacity .2s ease-out,transform .2s ease-out}
.float-cta.is-visible{opacity:1;transform:translateY(0);pointer-events:auto}
.float-note{display:none}
.float-top{width:48px;height:48px;border-radius:50%;background:var(--c-surface);border:1px solid var(--c-brand);color:var(--c-brand);display:grid;place-items:center;box-shadow:var(--sh-2);font-size:18px;line-height:1;transition:background-color .18s ease-out,color .18s ease-out}
.float-top:hover{background:var(--c-brand);color:#fff}
.float-main{display:inline-flex;align-items:center;height:52px;padding:0 24px;border-radius:var(--r-pill);background:var(--c-cta);color:#fff;font-size:15px;font-weight:600;box-shadow:var(--sh-3);transition:filter .18s ease-out,transform .18s ease-out}
.float-main:hover{filter:brightness(.95)}
.float-main:active{transform:translateY(1px)}
@media(max-width:767px){
  body{padding-bottom:80px}
  .float-cta{right:0;left:0;bottom:0;flex-direction:row;align-items:center;justify-content:space-between;gap:12px;background:var(--c-surface);padding:8px 16px calc(8px + env(safe-area-inset-bottom));box-shadow:0 -8px 24px rgba(12,42,36,.10);transform:translateY(100%)}
  .float-cta.is-visible{transform:translateY(0)}
  .float-top{display:none}
  .float-note{display:block;font-size:14px;color:var(--c-ink-2)}
  .float-main{flex:0 0 40%;justify-content:center;padding:0 12px;height:46px}
}

/* ---------- footer ---------- */
.site-footer{background:var(--c-brand-deep);color:#fff;padding-top:56px}
.footer-grid{display:grid;grid-template-columns:1fr;gap:32px;padding-bottom:40px;border-bottom:1px solid var(--c-line-dark)}
.footer-brand .logo{color:#fff;margin-bottom:16px}
.footer-brand .logo .logo-mark{background:rgba(255,255,255,.10)}
.footer-brand .logo-text em{color:var(--c-accent)}
.footer-brand p{font-size:15px;color:rgba(255,255,255,.72);max-width:38ch}
.footer-icp{margin-top:14px;font-size:13px;color:rgba(255,255,255,.5)}
.footer-col h3{font-size:15px;font-weight:600;color:#fff;margin-bottom:16px}
.footer-col li{margin-bottom:10px}
.footer-col a{font-size:15px;color:rgba(255,255,255,.78);transition:color .18s ease-out,padding-left .18s ease-out}
.footer-col a:hover{color:var(--c-accent);padding-left:2px}
.footer-col span{display:block;font-size:15px;color:rgba(255,255,255,.78)}
.footer-bottom{display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:12px;padding:24px 0 32px;font-size:13px;color:rgba(255,255,255,.55)}
.footer-bottom a{color:rgba(255,255,255,.78);transition:color .18s ease-out}
.footer-bottom a:hover{color:var(--c-accent)}
@media(min-width:768px){
  .footer-grid{grid-template-columns:1.4fr 1fr 1fr 1fr;gap:32px}
}
@media(min-width:1200px){
  .site-footer{padding-top:72px}
}

@media(prefers-reduced-motion:reduce){
  *{animation-duration:.01ms !important;transition-duration:.01ms !important;scroll-behavior:auto !important}
  .news-card:hover,.plan-card:hover,.news-card:hover .news-thumb img{transform:none !important}
}

/* roulang page: category1 */
/* ===== 设计变量 ===== */
:root{
  --c-brand:#0E3B33;
  --c-brand-deep:#082A24;
  --c-brand-soft:#17594C;
  --c-accent:#C6F24E;
  --c-cta:#FF7A2F;
  --c-bg:#F6F4EE;
  --c-surface:#FFFFFF;
  --c-surface-alt:#EDEAE1;
  --c-ink:#16211E;
  --c-ink-2:#45524E;
  --c-ink-3:#7C8783;
  --c-line:#D9D4C7;
  --c-line-dark:rgba(255,255,255,.14);
  --c-ok:#2E9E6B;
  --c-warn:#D98A00;
  --c-err:#C4453C;
  --r-xs:6px;
  --r-sm:10px;
  --r-md:14px;
  --r-lg:20px;
  --r-pill:999px;
  --sh-1:0 1px 2px rgba(12,42,36,.06);
  --sh-2:0 8px 24px rgba(12,42,36,.08);
  --sh-3:0 16px 40px rgba(12,42,36,.14);
  --ff-cn:"Noto Sans SC","Source Han Sans SC","PingFang SC","Microsoft YaHei",system-ui,sans-serif;
  --ff-num:"Barlow","Barlow Condensed",Inter,system-ui,sans-serif;
  --pad-x:24px;
}
@media (min-width:768px){ :root{ --pad-x:32px; } }
@media (min-width:1200px){ :root{ --pad-x:40px; } }

/* ===== reset / base ===== */
*,*::before,*::after{ box-sizing:border-box; }
html{ -webkit-text-size-adjust:100%; scroll-behavior:smooth; }
body{
  margin:0;
  font-family:var(--ff-cn);
  font-size:16px;
  line-height:1.8;
  color:var(--c-ink);
  background:var(--c-bg);
  -webkit-font-smoothing:antialiased;
}
@media (min-width:1200px){ body{ font-size:17px; } }
h1,h2,h3,h4,p,ul,ol,figure,blockquote{ margin:0; }
ul,ol{ padding:0; list-style:none; }
img{ max-width:100%; display:block; }
a{ color:inherit; text-decoration:none; transition:color .18s ease-out, background-color .18s ease-out, border-color .18s ease-out, transform .18s ease-out; }
button,input{ font:inherit; color:inherit; }
button{ background:none; border:0; cursor:pointer; }
:focus-visible{ outline:2px solid var(--c-accent); outline-offset:2px; }
::selection{ background:var(--c-accent); color:var(--c-brand-deep); }

.container{ width:100%; max-width:1240px; margin:0 auto; padding-left:var(--pad-x); padding-right:var(--pad-x); }
.section{ padding-top:56px; padding-bottom:56px; }
@media (min-width:768px){ .section{ padding-top:88px; padding-bottom:88px; } }
@media (min-width:1200px){ .section{ padding-top:112px; padding-bottom:112px; } }
.eyebrow{
  font-family:var(--ff-num); font-size:12px; font-weight:600; letter-spacing:.16em;
  text-transform:uppercase; color:var(--c-brand-soft);
}
h2.section-title{
  font-size:clamp(26px,2.6vw,34px); font-weight:700; line-height:1.35; letter-spacing:.3px;
  color:var(--c-ink); margin-top:10px;
}
.section-lead{ margin-top:14px; max-width:720px; color:var(--c-ink-2); font-size:16px; }

/* ===== 按钮与徽章 ===== */
.btn{
  display:inline-flex; align-items:center; justify-content:center; gap:8px;
  height:48px; padding:0 24px; border-radius:var(--r-sm);
  font-size:15px; font-weight:600; line-height:1;
  transition:transform .18s ease-out, box-shadow .18s ease-out, background-color .18s ease-out, color .18s ease-out, border-color .18s ease-out;
}
.btn-primary{ background:var(--c-accent); color:var(--c-brand-deep); border:1.5px solid var(--c-accent); }
.btn-primary:hover{ transform:translateY(-2px); box-shadow:var(--sh-2); }
.btn-primary:active{ transform:translateY(1px); box-shadow:none; }
.btn-ghost{ background:transparent; color:var(--c-brand); border:1.5px solid var(--c-brand); }
.btn-ghost:hover{ background:var(--c-brand); color:#fff; }
.btn-cta{ background:var(--c-cta); color:#fff; border:1.5px solid var(--c-cta); }
.btn-cta:hover{ transform:translateY(-2px); box-shadow:0 10px 26px rgba(255,122,47,.28); }
.btn-block{ width:100%; }
.text-link{
  display:inline-flex; align-items:center; gap:6px;
  font-size:15px; font-weight:600; color:var(--c-brand);
  border-bottom:2px solid var(--c-accent); padding-bottom:2px;
}
.text-link:hover{ color:var(--c-brand-soft); }
.text-link::after{ content:"→"; font-family:var(--ff-num); }
.badge{
  display:inline-flex; align-items:center; height:24px; padding:0 10px;
  border-radius:var(--r-pill); font-size:12px; font-weight:600; letter-spacing:.02em; white-space:nowrap;
}
.badge-cat{ background:var(--c-surface-alt); color:var(--c-brand); }
.badge-outline{ background:transparent; color:#fff; border:1px solid rgba(255,255,255,.42); }
.badge-cta{ background:var(--c-cta); color:#fff; }

/* ===== 导航 ===== */
.site-header{
  position:sticky; top:0; z-index:60;
  background:transparent; border-bottom:1px solid var(--c-line);
  transition:background-color .2s ease-out, box-shadow .2s ease-out, backdrop-filter .2s ease-out;
}
.site-header.is-scrolled{
  background:rgba(246,244,238,.92); box-shadow:var(--sh-1);
  -webkit-backdrop-filter:blur(8px); backdrop-filter:blur(8px);
}
.nav-wrap{ display:flex; align-items:center; gap:20px; height:76px; }
.logo{ display:inline-flex; align-items:center; gap:10px; flex:0 0 auto; }
.logo-mark{ width:30px; height:30px; display:inline-flex; align-items:center; justify-content:center; background:var(--c-brand); border-radius:9px; }
.logo-mark svg{ width:20px; height:20px; }
.logo-text{ font-size:17px; font-weight:800; letter-spacing:.2px; color:var(--c-brand-deep); white-space:nowrap; }
.logo-text em{ font-style:normal; color:var(--c-brand-soft); font-weight:600; }

.nav-search{
  position:relative; display:flex; align-items:center; gap:8px;
  flex:1 1 auto; max-width:560px; margin:0 auto; height:48px; padding:0 6px 0 16px;
  background:var(--c-surface); border:1px solid var(--c-line); border-radius:var(--r-pill);
  transition:border-color .18s ease-out, box-shadow .18s ease-out;
}
.nav-search:hover{ border-color:var(--c-brand-soft); }
.nav-search:focus-within{ border-color:var(--c-brand); box-shadow:0 0 0 4px rgba(198,242,78,.28); }
.nav-search .search-icon{ width:20px; height:20px; color:var(--c-ink-3); flex:0 0 auto; }
.nav-search input{
  flex:1 1 auto; min-width:0; height:100%; border:0; background:transparent; outline:none;
  font-size:15px; color:var(--c-ink);
}
.nav-search input::placeholder{ color:var(--c-ink-3); }
.nav-search button{
  flex:0 0 auto; height:38px; padding:0 20px; border-radius:var(--r-pill);
  background:var(--c-accent); color:var(--c-brand-deep); font-size:14px; font-weight:700;
  transition:filter .18s ease-out, transform .18s ease-out;
}
.nav-search button:hover{ filter:brightness(.95); }
.nav-search button:active{ transform:translateY(1px); }

.nav-links{ display:flex; align-items:center; gap:6px; flex:0 0 auto; }
.nav-links a{
  position:relative; display:inline-flex; align-items:center; height:76px; padding:0 12px;
  font-size:15px; font-weight:500; color:var(--c-ink-2);
}
.nav-links a::after{
  content:""; position:absolute; left:12px; right:12px; bottom:18px; height:2px;
  background:var(--c-accent); transform:scaleX(0); transform-origin:left; transition:transform .2s ease-out;
}
.nav-links a:hover{ color:var(--c-brand); }
.nav-links a:hover::after{ transform:scaleX(1); }
.nav-links a.is-active{ color:var(--c-brand); font-weight:700; }
.nav-links a.is-active::after{ transform:scaleX(1); }

.nav-toggle{ display:none; width:44px; height:44px; border-radius:var(--r-sm); border:1px solid var(--c-line); flex-direction:column; align-items:center; justify-content:center; gap:4px; }
.nav-toggle span{ display:block; width:18px; height:2px; background:var(--c-brand); border-radius:2px; }
.nav-search-mobile{ display:none; }

@media (max-width:991px){
  .nav-wrap{ flex-wrap:wrap; height:auto; padding-top:12px; padding-bottom:12px; gap:12px; }
  .logo{ flex:1 1 auto; }
  .nav-toggle{ display:flex; }
  .nav-search{ order:3; flex:1 1 100%; max-width:none; margin:0; height:44px; }
  .nav-search button{ height:34px; padding:0 16px; }
  .nav-links{
    position:fixed; inset:0; z-index:80; display:none; flex-direction:column; align-items:stretch; gap:0;
    background:var(--c-bg); padding:20px var(--pad-x) 40px; overflow-y:auto;
  }
  .nav-links.is-open{ display:flex; }
  .nav-search-mobile{ display:flex; position:relative; align-items:center; gap:8px; height:44px; padding:0 6px 0 16px; background:var(--c-surface); border:1px solid var(--c-line); border-radius:var(--r-pill); margin-bottom:16px; }
  .nav-search-mobile svg{ width:18px; height:18px; color:var(--c-ink-3); }
  .nav-search-mobile input{ flex:1 1 auto; min-width:0; border:0; background:transparent; outline:none; font-size:15px; }
  .nav-search-mobile button{ height:34px; padding:0 16px; border-radius:var(--r-pill); background:var(--c-accent); color:var(--c-brand-deep); font-weight:700; font-size:14px; }
  .nav-links a{ height:52px; padding:0; border-bottom:1px solid var(--c-line); font-size:16px; }
  .nav-links a::after{ display:none; }
  .nav-links a.is-active{ color:var(--c-brand); }
}

/* ===== 面包屑 ===== */
.breadcrumb{ font-size:13px; color:rgba(255,255,255,.72); }
.breadcrumb ol{ display:flex; flex-wrap:wrap; align-items:center; gap:8px; }
.breadcrumb li+li::before{ content:"/"; margin-right:8px; color:rgba(255,255,255,.42); }
.breadcrumb a:hover{ color:var(--c-accent); }
.breadcrumb [aria-current="page"]{ color:#fff; }

/* ===== 分类首屏 ===== */
.cat-hero{
  position:relative; overflow:hidden; background:var(--c-brand-deep); color:#fff;
  padding-top:36px; padding-bottom:48px;
}
@media (min-width:768px){ .cat-hero{ padding-top:48px; padding-bottom:64px; } }
.cat-hero-bg{
  position:absolute; inset:0; opacity:.34;
  background-image:linear-gradient(90deg,rgba(8,42,36,.92) 0%,rgba(8,42,36,.62) 58%,rgba(8,42,36,.9) 100%), url("/assets/images/backpic/back-2.webp");
  background-size:cover; background-position:center;
}
.cat-hero-bg::after{
  content:""; position:absolute; inset:0;
  background-image:radial-gradient(circle at 78% 30%, rgba(198,242,78,.10) 0%, transparent 58%);
}
.cat-hero .container{ position:relative; z-index:1; }
.cat-hero h1{
  margin-top:18px; font-size:clamp(30px,4vw,52px); font-weight:800; line-height:1.24; letter-spacing:.4px;
  max-width:860px;
}
.cat-hero-lead{
  margin-top:16px; max-width:660px; font-size:clamp(16px,1.6vw,18px); color:rgba(255,255,255,.84); line-height:1.8;
}
.cat-hero-tag{
  display:inline-flex; align-items:center; gap:8px; margin-top:22px; padding:6px 14px;
  border-radius:var(--r-pill); border:1px solid rgba(198,242,78,.42); color:var(--c-accent);
  font-size:13px; font-weight:600;
}
.hero-points{
  display:grid; grid-template-columns:1fr; gap:14px; margin-top:32px;
  border-top:1px solid var(--c-line-dark); padding-top:24px;
}
@media (min-width:640px){ .hero-points{ grid-template-columns:repeat(3,1fr); gap:24px; } }
.hero-point{ display:flex; gap:12px; align-items:flex-start; }
.hero-point b{ font-family:var(--ff-num); font-size:26px; font-weight:700; color:var(--c-accent); line-height:1.1; }
.hero-point span{ font-size:14px; color:rgba(255,255,255,.78); line-height:1.7; }

/* ===== 分栏主体 ===== */
.split{ display:grid; grid-template-columns:1fr; gap:40px; align-items:start; }
@media (min-width:992px){ .split{ grid-template-columns:62% 38%; gap:48px; } }

.block-card{
  background:var(--c-surface); border:1px solid var(--c-line); border-radius:var(--r-md);
  padding:26px 22px; box-shadow:var(--sh-1); margin-bottom:20px;
  scroll-margin-top:140px;
}
@media (min-width:768px){ .block-card{ padding:32px 30px; } }
.block-head{ display:flex; align-items:center; gap:12px; }
.block-icon{
  flex:0 0 auto; width:40px; height:40px; border-radius:var(--r-sm);
  background:var(--c-surface-alt); display:inline-flex; align-items:center; justify-content:center;
}
.block-icon svg{ width:20px; height:20px; stroke:var(--c-brand); }
.block-card h2{ font-size:clamp(19px,2vw,22px); font-weight:600; line-height:1.45; }
.block-card p{ margin-top:14px; color:var(--c-ink-2); font-size:16px; }
.block-card p + p{ margin-top:12px; }
.check-list{ margin-top:18px; display:grid; gap:10px; }
.check-list li{ position:relative; padding-left:26px; font-size:15px; color:var(--c-ink-2); }
.check-list li::before{
  content:""; position:absolute; left:0; top:9px; width:12px; height:12px; border-radius:4px;
  background:var(--c-accent); box-shadow:inset 0 0 0 3px var(--c-surface);
}
.block-figure{ margin-top:22px; border-radius:var(--r-lg); overflow:hidden; border:1px solid var(--c-line); }
.block-figure img{ width:100%; height:auto; aspect-ratio:16/9; object-fit:cover; }
.block-figure figcaption{ font-size:13px; color:var(--c-ink-3); padding:10px 14px; background:var(--c-surface); }

/* ===== 侧栏 ===== */
.side{ display:grid; gap:20px; }
@media (min-width:992px){ .side{ position:sticky; top:104px; } }
.side-card{
  background:var(--c-surface); border:1px solid var(--c-line); border-radius:var(--r-md);
  padding:22px; box-shadow:var(--sh-1);
}
.side-card h3{ font-size:16px; font-weight:700; letter-spacing:.2px; }
.toc{ margin-top:14px; display:grid; gap:2px; }
.toc a{
  display:flex; align-items:center; gap:10px; height:40px; padding:0 10px;
  border-radius:var(--r-xs); font-size:14px; color:var(--c-ink-2); border-left:3px solid transparent;
}
.toc a:hover{ background:var(--c-bg); border-left-color:var(--c-accent); color:var(--c-brand); }
.cross-link{
  display:flex; gap:14px; align-items:center; margin-top:14px; padding:12px;
  border-radius:var(--r-sm); background:var(--c-surface-alt);
}
.cross-link img{ width:72px; height:56px; border-radius:var(--r-xs); object-fit:cover; }
.cross-link strong{ display:block; font-size:15px; color:var(--c-ink); }
.cross-link span{ font-size:13px; color:var(--c-ink-3); }
.cross-link:hover{ background:#E4E0D5; }
.side-cta{ background:var(--c-brand-deep); border-color:transparent; color:#fff; }
.side-cta h3{ color:#fff; }
.side-cta p{ margin-top:10px; font-size:14px; color:rgba(255,255,255,.78); }
.side-cta .btn{ margin-top:16px; }

/* ===== 时间线 ===== */
.timeline-wrap{ background:var(--c-surface-alt); border-top:1px solid var(--c-line); border-bottom:1px solid var(--c-line); }
.timeline{ position:relative; margin-top:36px; padding-left:28px; }
.timeline::before{ content:""; position:absolute; left:7px; top:8px; bottom:8px; width:1px; background:var(--c-line); }
.tl-item{ position:relative; padding-bottom:28px; }
.tl-item:last-child{ padding-bottom:0; }
.tl-item::before{
  content:""; position:absolute; left:-28px; top:8px; width:15px; height:15px; border-radius:50%;
  background:var(--c-accent); border:3px solid var(--c-surface-alt);
}
.tl-item h3{ font-size:17px; font-weight:600; }
.tl-item p{ margin-top:6px; font-size:15px; color:var(--c-ink-2); max-width:640px; }
.tl-index{ font-family:var(--ff-num); font-size:13px; font-weight:700; color:var(--c-brand-soft); letter-spacing:.08em; }

/* ===== FAQ ===== */
.faq-list{ max-width:860px; margin-top:32px; display:grid; gap:12px; }
.faq-item{ background:var(--c-surface); border:1px solid var(--c-line); border-radius:12px; padding:20px 24px; border-left:3px solid transparent; transition:border-color .2s ease-out; }
.faq-item.is-open{ border-left-color:var(--c-accent); }
.faq-q{
  display:flex; align-items:center; justify-content:space-between; gap:16px; width:100%;
  text-align:left; font-size:17px; font-weight:600; color:var(--c-ink);
}
.faq-q .faq-plus{ font-family:var(--ff-num); font-size:22px; font-weight:600; color:var(--c-brand); transition:transform .2s ease-out; line-height:1; }
.faq-item.is-open .faq-plus{ transform:rotate(45deg); }
.faq-a{ display:none; margin-top:12px; font-size:15px; color:var(--c-ink-2); line-height:1.8; }
.faq-item.is-open .faq-a{ display:block; }

/* ===== 通栏 CTA ===== */
.cta-bar{ background:var(--c-brand); color:#fff; }
.cta-inner{ display:grid; gap:24px; align-items:center; padding-top:48px; padding-bottom:48px; }
@media (min-width:768px){ .cta-inner{ grid-template-columns:1fr auto; padding-top:56px; padding-bottom:56px; } }
.cta-inner h2{ font-size:clamp(22px,2.4vw,30px); font-weight:700; line-height:1.4; }
.cta-inner p{ margin-top:10px; color:rgba(255,255,255,.8); font-size:15px; max-width:640px; }
.cta-actions{ display:flex; flex-wrap:wrap; gap:12px; }

/* ===== 页脚 ===== */
.site-footer{ background:var(--c-brand-deep); color:rgba(255,255,255,.78); padding-top:56px; }
.footer-grid{ display:grid; grid-template-columns:1fr; gap:32px; padding-bottom:40px; }
@media (min-width:640px){ .footer-grid{ grid-template-columns:repeat(2,1fr); } }
@media (min-width:992px){ .footer-grid{ grid-template-columns:1.6fr 1fr 1fr 1fr; } }
.footer-brand .logo-text{ color:#fff; }
.footer-brand .logo-text em{ color:var(--c-accent); }
.site-footer .logo{ margin-bottom:16px; }
.footer-brand p{ font-size:14px; line-height:1.8; max-width:360px; }
.footer-icp{ margin-top:12px; color:rgba(255,255,255,.5); font-size:13px; }
.footer-col h3{ font-size:15px; font-weight:700; color:#fff; margin-bottom:16px; }
.footer-col ul{ display:grid; gap:10px; }
.footer-col li{ font-size:14px; }
.footer-col a:hover{ color:var(--c-accent); transform:translateX(2px); }
.footer-bottom{
  display:flex; flex-wrap:wrap; gap:12px; align-items:center; justify-content:space-between;
  border-top:1px solid var(--c-line-dark); padding-top:20px; padding-bottom:28px;
  font-size:13px; color:rgba(255,255,255,.6);
}
.footer-bottom a:hover{ color:var(--c-accent); }

/* ===== 浮动 CTA ===== */
.float-cta{
  position:fixed; right:32px; bottom:32px; z-index:55;
  display:flex; flex-direction:column; align-items:flex-end; gap:12px;
  opacity:0; visibility:hidden; transform:translateY(12px);
  transition:opacity .2s ease-out, transform .2s ease-out, visibility .2s;
}
.float-cta.is-visible{ opacity:1; visibility:visible; transform:translateY(0); }
.to-top{
  width:48px; height:48px; border-radius:50%; background:var(--c-surface); border:1.5px solid var(--c-brand);
  color:var(--c-brand); display:inline-flex; align-items:center; justify-content:center; box-shadow:var(--sh-2);
}
.to-top:hover{ background:var(--c-brand); color:#fff; }
.float-btn{
  display:inline-flex; align-items:center; height:52px; padding:0 24px; border-radius:var(--r-pill);
  background:var(--c-cta); color:#fff; font-size:15px; font-weight:700;
  box-shadow:0 10px 26px rgba(255,122,47,.3);
}
.float-btn:hover{ transform:translateY(-2px); }
@media (max-width:767px){
  .float-cta{
    right:0; left:0; bottom:0; flex-direction:row; align-items:center; justify-content:space-between;
    gap:12px; padding:10px 20px calc(10px + env(safe-area-inset-bottom));
    background:rgba(8,42,36,.96); border-top:1px solid var(--c-line-dark);
  }
  .float-cta .to-top{ order:2; width:44px; height:44px; background:transparent; border-color:rgba(255,255,255,.4); color:#fff; }
  .float-cta .float-btn{ order:1; flex:0 0 40%; justify-content:center; height:44px; padding:0 14px; font-size:14px; }
  body{ padding-bottom:76px; }
}

/* 其它 */
.divider{ height:1px; background:var(--c-line); }
@media (prefers-reduced-motion:reduce){
  *{ animation:none !important; transition:none !important; }
  html{ scroll-behavior:auto; }
}

/* roulang page: article */
:root{
  --c-brand:#0E3B33;
  --c-brand-deep:#082A24;
  --c-brand-soft:#17594C;
  --c-accent:#C6F24E;
  --c-cta:#FF7A2F;
  --c-bg:#F6F4EE;
  --c-surface:#FFFFFF;
  --c-surface-alt:#EDEAE1;
  --c-ink:#16211E;
  --c-ink-2:#45524E;
  --c-ink-3:#7C8783;
  --c-line:#D9D4C7;
  --c-line-dark:rgba(255,255,255,.14);
  --c-ok:#2E9E6B;
  --c-warn:#D98A00;
  --c-err:#C4453C;
  --r-xs:6px;
  --r-sm:10px;
  --r-md:14px;
  --r-lg:20px;
  --r-pill:999px;
  --sh-1:0 1px 2px rgba(12,42,36,.06);
  --sh-2:0 8px 24px rgba(12,42,36,.08);
  --sh-3:0 16px 40px rgba(12,42,36,.14);
  --ff-cn:"Noto Sans SC","Source Han Sans SC","PingFang SC","Microsoft YaHei",system-ui,sans-serif;
  --ff-num:"Barlow","Barlow Condensed",Inter,system-ui,sans-serif;
  --pad-x:24px;
}

*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:var(--ff-cn);
  font-size:16px;
  line-height:1.8;
  color:var(--c-ink);
  background:var(--c-bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border:0;}
a{color:inherit;text-decoration:none;}
button{font-family:inherit;}
h1,h2,h3,h4,p,ul,ol,figure,blockquote{margin:0;}
ul,ol{padding:0;list-style:none;}
input,button,textarea{font-family:inherit;font-size:inherit;color:inherit;}
:focus-visible{outline:2px solid var(--c-accent);outline-offset:2px;border-radius:4px;}

.container{width:100%;max-width:1240px;margin:0 auto;padding:0 var(--pad-x);}
.skip-link{position:absolute;left:-9999px;top:0;background:var(--c-brand);color:#fff;padding:10px 18px;border-radius:0 0 var(--r-sm) 0;z-index:200;}
.skip-link:focus{left:0;}

/* ============ 按钮 / 徽章 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:48px;padding:0 24px;border-radius:var(--r-sm);
  font-size:15px;font-weight:600;letter-spacing:.2px;
  border:1.5px solid transparent;cursor:pointer;
  transition:background-color .18s ease-out,color .18s ease-out,border-color .18s ease-out,transform .18s ease-out,box-shadow .18s ease-out;
}
.btn:active{transform:translateY(1px);}
.btn-primary{background:var(--c-accent);color:var(--c-brand-deep);}
.btn-primary:hover{background:#d5ff5f;box-shadow:var(--sh-2);}
.btn-outline{background:transparent;border-color:var(--c-brand);color:var(--c-brand);}
.btn-outline:hover{background:var(--c-brand);color:#fff;}
.btn-on-dark{background:var(--c-accent);color:var(--c-brand-deep);}
.btn-on-dark:hover{background:#d5ff5f;}
.btn-block{width:100%;}

.badge{
  display:inline-flex;align-items:center;height:24px;padding:0 10px;
  border-radius:var(--r-pill);font-size:12px;font-weight:500;line-height:1;
}
.badge-cat{background:var(--c-surface-alt);color:var(--c-brand);}
.badge-line{background:transparent;border:1px solid var(--c-line);color:var(--c-ink-2);}

/* ============ 导航 ============ */
.site-header{
  position:sticky;top:0;z-index:100;
  background:transparent;
  border-bottom:1px solid var(--c-line);
  transition:background-color .2s ease-out,box-shadow .2s ease-out,backdrop-filter .2s ease-out;
}
.site-header.is-scrolled{
  background:rgba(246,244,238,.92);
  box-shadow:var(--sh-1);
  backdrop-filter:blur(8px);
  -webkit-backdrop-filter:blur(8px);
}
.nav-wrap{display:flex;align-items:center;gap:20px;height:76px;}
.logo{display:inline-flex;align-items:center;gap:10px;flex:0 0 auto;}
.logo-mark{width:30px;height:30px;display:inline-flex;align-items:center;justify-content:center;background:var(--c-brand-deep);border-radius:9px;}
.logo-mark svg{width:22px;height:22px;}
.logo-text{font-size:17px;font-weight:800;letter-spacing:.2px;color:var(--c-ink);white-space:nowrap;}
.logo-text em{font-style:normal;color:var(--c-brand-soft);font-weight:600;}
.nav-search{
  flex:1 1 auto;max-width:540px;margin:0 auto;position:relative;
  display:flex;align-items:center;height:48px;
  background:var(--c-surface);border:1px solid var(--c-line);
  border-radius:var(--r-pill);padding:0 6px 0 16px;
  transition:border-color .18s ease-out,box-shadow .18s ease-out;
}
.nav-search:hover{border-color:var(--c-brand-soft);}
.nav-search:focus-within{border-color:var(--c-brand);box-shadow:0 0 0 4px rgba(198,242,78,.28);outline:2px solid var(--c-accent);outline-offset:0;}
.search-icon{width:20px;height:20px;color:var(--c-ink-3);flex:0 0 auto;}
.nav-search input{
  flex:1 1 auto;min-width:0;height:100%;border:0;background:transparent;
  padding:0 12px;font-size:15px;outline:none;
}
.nav-search input::placeholder{color:var(--c-ink-3);}
.nav-search button{
  flex:0 0 auto;height:38px;padding:0 20px;border:0;border-radius:var(--r-pill);
  background:var(--c-accent);color:var(--c-brand-deep);font-size:14px;font-weight:600;cursor:pointer;
  transition:background-color .18s ease-out;
}
.nav-search button:hover{background:#d5ff5f;}
.nav-links{display:flex;align-items:center;gap:24px;flex:0 0 auto;}
.nav-links a{
  position:relative;font-size:15px;font-weight:500;color:var(--c-ink-2);
  padding:6px 0;white-space:nowrap;transition:color .18s ease-out;
}
.nav-links a::after{
  content:"";position:absolute;left:0;right:0;bottom:0;height:2px;
  background:var(--c-accent);transform:scaleX(0);transform-origin:left;
  transition:transform .2s ease-out;
}
.nav-links a:hover{color:var(--c-brand);}
.nav-links a:hover::after{transform:scaleX(1);}
.nav-links a.is-active{color:var(--c-brand);font-weight:700;}
.nav-links a.is-active::after{transform:scaleX(1);}
.nav-toggle{
  display:none;flex-direction:column;justify-content:center;gap:5px;
  width:44px;height:44px;padding:0 10px;border:1px solid var(--c-line);
  border-radius:var(--r-sm);background:var(--c-surface);cursor:pointer;
}
.nav-toggle span{display:block;height:2px;background:var(--c-brand);border-radius:2px;transition:transform .2s ease-out,opacity .2s ease-out;}
.nav-toggle[aria-expanded="true"] span:nth-child(1){transform:translateY(7px) rotate(45deg);}
.nav-toggle[aria-expanded="true"] span:nth-child(2){opacity:0;}
.nav-toggle[aria-expanded="true"] span:nth-child(3){transform:translateY(-7px) rotate(-45deg);}

/* ============ 面包屑 ============ */
.breadcrumb{
  display:flex;flex-wrap:wrap;align-items:center;gap:8px;
  font-size:13px;color:rgba(255,255,255,.72);
}
.breadcrumb li{display:inline-flex;align-items:center;gap:8px;min-width:0;}
.breadcrumb li+li::before{content:"/";color:rgba(255,255,255,.35);}
.breadcrumb a{color:rgba(255,255,255,.82);transition:color .18s ease-out;}
.breadcrumb a:hover{color:var(--c-accent);}
.breadcrumb .crumb-current{
  color:#fff;font-weight:500;max-width:340px;overflow:hidden;
  text-overflow:ellipsis;white-space:nowrap;display:inline-block;vertical-align:bottom;
}

/* ============ 文章头部 ============ */
.article-hero{
  position:relative;overflow:hidden;
  background-color:var(--c-brand-deep);
  background-image:linear-gradient(105deg,rgba(8,42,36,.96) 0%,rgba(8,42,36,.82) 55%,rgba(14,59,51,.72) 100%),url('/assets/images/backpic/back-2.webp');
  background-size:cover;background-position:center;
  padding:36px 0 56px;
}
.article-hero::after{
  content:"";position:absolute;right:-120px;bottom:-160px;width:420px;height:420px;
  border:1px solid rgba(198,242,78,.18);border-radius:50%;pointer-events:none;
}
.article-hero .container{position:relative;z-index:1;}
.article-hero h1{
  margin-top:22px;
  font-size:clamp(28px,3.6vw,44px);
  font-weight:800;line-height:1.35;letter-spacing:.3px;
  color:#fff;max-width:900px;
}
.article-meta{display:flex;flex-wrap:wrap;align-items:center;gap:14px;margin-top:22px;font-size:14px;color:rgba(255,255,255,.78);}
.article-meta time{font-family:var(--ff-num);letter-spacing:.06em;font-size:14px;}
.article-meta .meta-cat{
  display:inline-flex;align-items:center;height:28px;padding:0 14px;
  border-radius:var(--r-pill);background:rgba(198,242,78,.16);
  border:1px solid rgba(198,242,78,.45);color:var(--c-accent);
  font-size:13px;font-weight:500;transition:background-color .18s ease-out;
}
.article-meta .meta-cat:hover{background:rgba(198,242,78,.28);}
.article-meta .meta-sep{width:1px;height:14px;background:rgba(255,255,255,.24);}

/* ============ 正文布局 ============ */
.article-shell{padding:56px 0 24px;}
.article-layout{
  display:grid;
  grid-template-columns:minmax(0,760px) 260px;
  gap:60px;justify-content:center;align-items:start;
}
.article-main{min-width:0;}
.article-cover{
  margin:0 0 36px;border-radius:var(--r-lg);overflow:hidden;
  box-shadow:var(--sh-3);background:var(--c-surface-alt);
}
.article-cover img{width:100%;height:auto;aspect-ratio:21/9;object-fit:cover;}
.article-cover figcaption{
  padding:10px 16px;font-size:13px;color:var(--c-ink-3);
  background:var(--c-surface);border-top:1px solid var(--c-line);
}

.article-body{font-size:17px;line-height:1.85;color:var(--c-ink);max-width:760px;}
.article-body>*:first-child{margin-top:0;}
.article-body p{margin:0 0 1.2em;}
.article-body h2{
  position:relative;margin:44px 0 16px;padding-left:16px;
  font-size:clamp(21px,2.2vw,28px);font-weight:700;line-height:1.4;letter-spacing:.2px;
  scroll-margin-top:140px;
}
.article-body h2::before{
  content:"";position:absolute;left:0;top:.2em;bottom:.2em;width:4px;
  border-radius:2px;background:var(--c-accent);
}
.article-body h3{margin:30px 0 12px;font-size:19px;font-weight:600;line-height:1.5;scroll-margin-top:140px;}
.article-body h4{margin:24px 0 10px;font-size:17px;font-weight:600;}
.article-body a{color:var(--c-brand);border-bottom:2px solid var(--c-accent);transition:color .18s ease-out;}
.article-body a:hover{color:var(--c-brand-soft);}
.article-body strong{font-weight:700;color:var(--c-ink);}
.article-body ul{margin:0 0 1.2em;padding-left:1.3em;}
.article-body ul>li{position:relative;margin-bottom:8px;}
.article-body ul>li::before{
  content:"";position:absolute;left:-1.05em;top:.72em;
  width:7px;height:7px;border-radius:2px;background:var(--c-accent);
}
.article-body ol{margin:0 0 1.2em;padding-left:1.5em;list-style:decimal;}
.article-body ol>li{margin-bottom:8px;}
.article-body ol>li::marker{color:var(--c-brand-soft);font-weight:600;font-family:var(--ff-num);}
.article-body blockquote{
  margin:26px 0;padding:18px 24px;
  background:var(--c-surface-alt);border-left:3px solid var(--c-accent);
  border-radius:0 var(--r-md) var(--r-md) 0;color:var(--c-ink-2);
}
.article-body blockquote p:last-child{margin-bottom:0;}
.article-body img{border-radius:var(--r-md);margin:24px auto;}
.article-body figure{margin:26px 0;}
.article-body figure img{margin:0 auto;}
.article-body figcaption{margin-top:8px;font-size:13px;color:var(--c-ink-3);text-align:center;}
.article-body table{display:block;width:100%;max-width:100%;overflow-x:auto;border-collapse:collapse;margin:26px 0;font-size:15px;}
.article-body th{background:var(--c-brand);color:#fff;text-align:left;padding:12px 16px;white-space:nowrap;font-weight:500;}
.article-body td{padding:12px 16px;border-bottom:1px solid var(--c-line);color:var(--c-ink-2);}
.article-body hr{border:0;border-top:1px solid var(--c-line);margin:36px 0;}

.empty-state{
  padding:44px 32px;text-align:center;background:var(--c-surface);
  border:1px solid var(--c-line);border-radius:var(--r-lg);
}
.empty-state h2{font-size:22px;font-weight:700;margin-bottom:10px;padding:0;}
.empty-state h2::before{display:none;}
.empty-state p{color:var(--c-ink-2);font-size:15px;margin-bottom:22px;}

/* ============ 标签 / 文末 ============ */
.article-tags{display:flex;flex-wrap:wrap;gap:10px;margin:44px 0 0;padding-top:28px;border-top:1px solid var(--c-line);}
.article-tags .tag{
  display:inline-flex;align-items:center;height:30px;padding:0 14px;
  border-radius:var(--r-pill);background:var(--c-surface-alt);
  color:var(--c-ink-2);font-size:13px;transition:background-color .18s ease-out,color .18s ease-out;
}
.article-tags .tag:hover{background:var(--c-brand);color:#fff;}

.related{margin-top:48px;}
.block-title{display:flex;align-items:flex-end;justify-content:space-between;gap:16px;margin-bottom:20px;}
.block-title h2{font-size:22px;font-weight:700;letter-spacing:.2px;}
.block-title a{font-size:14px;font-weight:600;color:var(--c-brand);border-bottom:2px solid var(--c-accent);padding-bottom:2px;}
.related-list{border-top:1px solid var(--c-line);}
.related-item{
  display:flex;gap:16px;align-items:center;min-height:88px;padding:12px 12px 12px 0;
  border-bottom:1px solid var(--c-line);border-left:3px solid transparent;
  transition:background-color .18s ease-out,border-color .18s ease-out;
}
.related-item:hover{background:var(--c-bg);border-left-color:var(--c-accent);}
.related-thumb{flex:0 0 128px;width:128px;height:80px;border-radius:var(--r-sm);overflow:hidden;background:var(--c-surface-alt);}
.related-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .25s ease-out;}
.related-item:hover .related-thumb img{transform:scale(1.04);}
.related-text{min-width:0;}
.related-text h3{font-size:16px;font-weight:600;line-height:1.5;margin-bottom:6px;transition:color .18s ease-out;}
.related-item:hover .related-text h3{color:var(--c-brand);}
.related-text p{font-size:14px;color:var(--c-ink-3);line-height:1.6;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.related-empty{margin-top:48px;padding:24px;background:var(--c-surface);border:1px dashed var(--c-line);border-radius:var(--r-md);font-size:14px;color:var(--c-ink-3);}

.post-nav{display:grid;grid-template-columns:1fr 1fr;gap:20px;margin-top:44px;}
.post-card{
  display:block;padding:22px 24px;background:var(--c-surface);
  border:1px solid var(--c-line);border-radius:var(--r-md);
  transition:transform .18s ease-out,box-shadow .18s ease-out,border-color .18s ease-out;
}
.post-card:hover{transform:translateY(-3px);box-shadow:var(--sh-3);border-color:var(--c-brand-soft);}
.post-card span{display:block;font-size:12px;letter-spacing:.08em;color:var(--c-ink-3);margin-bottom:8px;font-family:var(--ff-num);text-transform:uppercase;}
.post-card strong{display:block;font-size:16px;font-weight:600;line-height:1.5;color:var(--c-ink);}
.post-card.next{text-align:right;}

.back-cat{margin-top:32px;display:flex;}
.back-cat a{
  display:inline-flex;align-items:center;gap:8px;font-size:14px;font-weight:600;
  color:var(--c-brand);border-bottom:2px solid var(--c-accent);padding-bottom:3px;
}

/* ============ 侧栏 ============ */
.article-side{position:sticky;top:104px;display:grid;gap:20px;}
.article-side.is-static{position:static;}
.side-card{
  background:var(--c-surface);border:1px solid var(--c-line);
  border-radius:var(--r-md);padding:20px;box-shadow:var(--sh-1);
}
.side-card h2{font-size:15px;font-weight:700;letter-spacing:.4px;margin-bottom:14px;display:flex;align-items:center;gap:8px;}
.side-card h2::before{content:"";width:4px;height:14px;border-radius:2px;background:var(--c-accent);}
.side-card.is-hidden{display:none;}
.toc-list{display:grid;gap:2px;}
.toc-list a{
  display:block;padding:8px 10px;border-left:2px solid var(--c-line);
  font-size:14px;line-height:1.5;color:var(--c-ink-2);
  transition:color .18s ease-out,border-color .18s ease-out,background-color .18s ease-out;
}
.toc-list a:hover{color:var(--c-brand);background:var(--c-bg);}
.toc-list a.is-current{color:var(--c-brand);font-weight:600;border-left-color:var(--c-accent);background:var(--c-bg);}
.hot-list{display:grid;gap:14px;}
.hot-list a{display:grid;gap:4px;padding-bottom:14px;border-bottom:1px solid var(--c-line);}
.hot-list li:last-child a{border-bottom:0;padding-bottom:0;}
.hot-list strong{font-size:14px;font-weight:600;line-height:1.55;color:var(--c-ink);transition:color .18s ease-out;}
.hot-list a:hover strong{color:var(--c-brand);}
.hot-list span{font-size:12px;color:var(--c-ink-3);font-family:var(--ff-num);letter-spacing:.06em;}
.cta-mini{background:var(--c-surface-alt);border-color:transparent;}
.cta-mini p{font-size:14px;color:var(--c-ink-2);line-height:1.7;margin-bottom:14px;}
.cta-mini .btn{min-height:42px;font-size:14px;}

/* ============ 文末转化区 ============ */
.cta-band{
  margin-top:72px;background:var(--c-brand-deep);border-radius:var(--r-lg);
  padding:44px 40px;display:grid;grid-template-columns:1.4fr auto;gap:32px;align-items:center;
  position:relative;overflow:hidden;
}
.cta-band::before{
  content:"";position:absolute;left:-80px;top:-80px;width:260px;height:260px;
  border:1px solid rgba(198,242,78,.2);border-radius:50%;
}
.cta-band h2{position:relative;font-size:clamp(20px,2.2vw,26px);font-weight:700;color:#fff;line-height:1.45;margin-bottom:10px;}
.cta-band p{position:relative;font-size:15px;color:rgba(255,255,255,.78);line-height:1.8;max-width:560px;}
.cta-band .btn{position:relative;}

/* ============ 页脚 ============ */
.site-footer{background:var(--c-brand-deep);color:rgba(255,255,255,.78);margin-top:88px;padding-top:64px;}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.2fr;gap:32px;padding-bottom:48px;}
.footer-brand .logo{margin-bottom:18px;}
.footer-brand .logo-text{color:#fff;}
.footer-brand .logo-text em{color:var(--c-accent);}
.footer-brand p{font-size:14px;line-height:1.8;color:rgba(255,255,255,.72);max-width:360px;}
.footer-icp{margin-top:14px;font-size:13px;color:rgba(255,255,255,.5);}
.footer-col h3{font-size:15px;font-weight:600;color:#fff;margin-bottom:16px;letter-spacing:.4px;}
.footer-col ul{display:grid;gap:11px;}
.footer-col a,.footer-col span{font-size:14px;color:rgba(255,255,255,.76);transition:color .18s ease-out,transform .18s ease-out;display:inline-block;}
.footer-col a:hover{color:var(--c-accent);transform:translateX(2px);}
.footer-bottom{
  border-top:1px solid var(--c-line-dark);
  padding-top:22px;padding-bottom:28px;
  display:flex;flex-wrap:wrap;gap:12px 24px;align-items:center;justify-content:space-between;
  font-size:13px;color:rgba(255,255,255,.6);
}
.footer-bottom a{color:rgba(255,255,255,.78);transition:color .18s ease-out;}
.footer-bottom a:hover{color:var(--c-accent);}

/* ============ 浮动 CTA ============ */
.float-cta{
  position:fixed;right:32px;bottom:32px;z-index:90;
  display:flex;flex-direction:column;align-items:flex-end;gap:12px;
  opacity:0;transform:translateY(12px);pointer-events:none;
  transition:opacity .2s ease-out,transform .2s ease-out;
}
.float-cta.is-visible{opacity:1;transform:none;pointer-events:auto;}
.float-btn{
  display:inline-flex;align-items:center;gap:8px;height:52px;padding:0 24px;
  border-radius:var(--r-pill);background:var(--c-cta);color:#fff;
  font-size:15px;font-weight:600;box-shadow:var(--sh-3);
  transition:filter .18s ease-out,transform .18s ease-out;
}
.float-btn:hover{filter:brightness(1.06);transform:translateY(-2px);}
.to-top{
  width:48px;height:48px;border-radius:50%;background:var(--c-surface);
  border:1.5px solid var(--c-brand);color:var(--c-brand);
  display:inline-flex;align-items:center;justify-content:center;
  box-shadow:var(--sh-2);cursor:pointer;transition:background-color .18s ease-out,color .18s ease-out;
}
.to-top:hover{background:var(--c-brand);color:#fff;}
.float-note{display:none;}

/* ============ 响应式 ============ */
@media (min-width:1200px){:root{--pad-x:40px;}}
@media (min-width:768px) and (max-width:1199px){:root{--pad-x:32px;}}

@media (max-width:1199px){
  .article-layout{grid-template-columns:minmax(0,1fr);gap:36px;max-width:820px;margin:0 auto;}
  .article-side{position:static;grid-template-columns:1fr 1fr;display:grid;}
  .article-side .cta-mini{grid-column:1 / -1;}
  .toc-list{max-height:none;}
}

@media (max-width:991px){
  .nav-wrap{height:auto;flex-wrap:wrap;padding:12px 0;row-gap:10px;}
  .nav-search{order:3;width:100%;max-width:none;margin:0;height:44px;}
  .nav-toggle{display:flex;margin-left:auto;}
  .nav-links{
    position:fixed;top:0;right:0;bottom:0;width:min(88vw,360px);
    background:var(--c-surface);flex-direction:column;align-items:stretch;gap:0;
    padding:96px 24px 32px;box-shadow:var(--sh-3);
    transform:translateX(102%);transition:transform .22s ease-out;
    overflow-y:auto;z-index:95;
  }
  .nav-links.is-open{transform:none;}
  .nav-links a{
    display:flex;align-items:center;height:52px;font-size:16px;
    border-bottom:1px solid var(--c-line);padding:0;
  }
  .nav-links a::after{display:none;}
  .nav-links a.is-active{color:var(--c-brand);font-weight:700;border-left:3px solid var(--c-accent);padding-left:12px;}
  .article-hero{padding:28px 0 44px;}
  .article-hero h1{margin-top:18px;}
  .article-shell{padding:40px 0 16px;}
  .cta-band{grid-template-columns:1fr;padding:32px 24px;gap:22px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px;}
  .footer-brand{grid-column:1 / -1;}
}

@media (max-width:767px){
  .article-body{font-size:16px;padding:0 2px;}
  .article-body h2{margin-top:36px;}
  .post-nav{grid-template-columns:1fr;}
  .post-card.next{text-align:left;}
  .related-item{gap:12px;}
  .related-thumb{flex:0 0 100px;width:100px;height:68px;}
  .float-cta{
    left:0;right:0;bottom:0;flex-direction:row;align-items:center;justify-content:space-between;
    gap:12px;padding:10px 16px calc(10px + env(safe-area-inset-bottom));
    background:rgba(255,255,255,.97);box-shadow:0 -6px 20px rgba(12,42,36,.12);
    transform:translateY(100%);
  }
  .float-cta.is-visible{transform:none;}
  .to-top{display:none;}
  .float-note{display:block;font-size:13px;color:var(--c-ink-2);line-height:1.4;padding-right:8px;}
  .float-btn{flex:0 0 40%;justify-content:center;height:46px;padding:0 14px;}
  body{padding-bottom:80px;}
  .site-footer{margin-top:56px;padding-top:44px;padding-bottom:80px;}
}

@media (max-width:520px){
  .nav-search{height:42px;padding-left:12px;}
  .nav-search button{height:34px;padding:0 14px;font-size:13px;}
  .logo-text{font-size:16px;}
  .article-side{grid-template-columns:1fr;}
  .footer-grid{grid-template-columns:1fr;gap:24px;}
  .article-tags{gap:8px;}
  .cta-band{padding:26px 20px;}
}

@media (prefers-reduced-motion:reduce){
  *{animation:none !important;transition:none !important;scroll-behavior:auto !important;}
  .float-cta{opacity:1;transform:none;}
}

/* roulang page: category2 */
:root{
  --c-brand:#0E3B33;
  --c-brand-deep:#082A24;
  --c-brand-soft:#17594C;
  --c-accent:#C6F24E;
  --c-cta:#FF7A2F;
  --c-bg:#F6F4EE;
  --c-surface:#FFFFFF;
  --c-surface-alt:#EDEAE1;
  --c-ink:#16211E;
  --c-ink-2:#45524E;
  --c-ink-3:#7C8783;
  --c-line:#D9D4C7;
  --c-line-dark:rgba(255,255,255,.14);
  --c-ok:#2E9E6B;
  --c-warn:#D98A00;
  --c-err:#C4453C;
  --r-xs:6px;
  --r-sm:10px;
  --r-md:14px;
  --r-lg:20px;
  --r-pill:999px;
  --sh-1:0 1px 2px rgba(12,42,36,.06);
  --sh-2:0 8px 24px rgba(12,42,36,.08);
  --sh-3:0 16px 40px rgba(12,42,36,.14);
  --ff-cn:"Noto Sans SC","Source Han Sans SC","PingFang SC","Microsoft YaHei",system-ui,sans-serif;
  --ff-num:"Barlow","Barlow Condensed",Inter,system-ui,sans-serif;
  --header-h:76px;
}

*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--c-bg);
  color:var(--c-ink);
  font-family:var(--ff-cn);
  font-size:16px;
  line-height:1.8;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border-style:none;}
a{color:inherit;text-decoration:none;transition:color .18s ease-out,background-color .18s ease-out,transform .18s ease-out,box-shadow .18s ease-out,border-color .18s ease-out;}
button,input{font:inherit;color:inherit;}
button{cursor:pointer;border:0;background:none;}
ul,ol{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4,p{margin:0;}
:focus-visible{outline:2px solid var(--c-accent);outline-offset:2px;}
::selection{background:var(--c-accent);color:var(--c-brand-deep);}

.container{
  width:100%;
  max-width:1240px;
  margin:0 auto;
  padding-left:24px;
  padding-right:24px;
}
@media(min-width:768px){.container{padding-left:32px;padding-right:32px;}}
@media(min-width:1200px){.container{padding-left:40px;padding-right:40px;}}

/* ============ 导航 ============ */
.site-header{
  position:sticky;
  top:0;
  z-index:120;
  background:rgba(246,244,238,.55);
  border-bottom:1px solid var(--c-line);
  transition:background-color .2s ease-out,box-shadow .2s ease-out,backdrop-filter .2s ease-out;
}
.site-header.is-scrolled{
  background:rgba(246,244,238,.92);
  box-shadow:var(--sh-1);
  backdrop-filter:blur(8px);
  -webkit-backdrop-filter:blur(8px);
}
.nav-wrap{
  display:flex;
  align-items:center;
  gap:16px;
  min-height:var(--header-h);
}
.logo{
  display:inline-flex;
  align-items:center;
  gap:10px;
  flex:0 0 auto;
}
.logo-mark{
  width:34px;height:34px;
  display:inline-flex;align-items:center;justify-content:center;
  background:var(--c-brand-deep);
  border-radius:var(--r-xs);
  box-shadow:var(--sh-1);
}
.logo-mark svg{width:22px;height:22px;}
.logo-text{
  font-size:18px;
  font-weight:800;
  letter-spacing:.3px;
  color:var(--c-brand-deep);
  white-space:nowrap;
}
.logo-text em{
  font-style:normal;
  color:var(--c-brand-soft);
  font-weight:700;
  padding-left:.15em;
}
.site-footer .logo-text{color:#fff;}
.site-footer .logo-text em{color:var(--c-accent);}

.nav-search{
  position:relative;
  display:flex;
  align-items:center;
  flex:0 1 520px;
  min-width:260px;
  height:48px;
  margin:0 clamp(16px,2.4vw,40px);
  background:var(--c-surface);
  border:1px solid var(--c-line);
  border-radius:var(--r-pill);
  padding-left:16px;
  transition:border-color .18s ease-out,box-shadow .18s ease-out;
}
.nav-search:hover{border-color:var(--c-brand-soft);}
.nav-search:focus-within{
  border-color:var(--c-brand);
  box-shadow:0 0 0 4px rgba(198,242,78,.28);
}
.search-icon{width:20px;height:20px;flex:0 0 auto;color:var(--c-ink-3);}
.nav-search input{
  flex:1 1 auto;
  min-width:0;
  height:100%;
  border:0;
  background:transparent;
  padding:0 12px;
  font-size:15px;
  color:var(--c-ink);
}
.nav-search input::placeholder{color:var(--c-ink-3);}
.nav-search input:focus{outline:none;}
.nav-search button{
  flex:0 0 auto;
  height:38px;
  margin-right:5px;
  padding:0 20px;
  border-radius:var(--r-pill);
  background:var(--c-accent);
  color:var(--c-brand-deep);
  font-size:14px;
  font-weight:700;
  letter-spacing:.02em;
  transition:filter .18s ease-out,transform .18s ease-out;
}
.nav-search button:hover{filter:brightness(1.05);}
.nav-search button:active{transform:translateY(1px);}
.nav-search--panel{display:none;}

.nav-links{
  display:flex;
  align-items:center;
  gap:4px;
  margin-left:auto;
  flex:0 0 auto;
}
.nav-links > a{
  position:relative;
  display:inline-flex;
  align-items:center;
  height:38px;
  padding:0 12px;
  font-size:15px;
  font-weight:500;
  color:var(--c-ink-2);
  border-radius:var(--r-xs);
  white-space:nowrap;
}
.nav-links > a:hover{color:var(--c-brand);background:var(--c-surface-alt);}
.nav-links > a.is-active{color:var(--c-brand);font-weight:700;}
.nav-links > a.is-active::after{
  content:"";
  position:absolute;
  left:12px;right:12px;bottom:2px;
  height:2px;
  background:var(--c-accent);
  border-radius:2px;
}
.nav-toggle{
  display:none;
  width:44px;height:44px;
  border-radius:var(--r-sm);
  border:1px solid var(--c-line);
  background:var(--c-surface);
  flex-direction:column;
  align-items:center;
  justify-content:center;
  gap:5px;
  flex:0 0 auto;
}
.nav-toggle span{
  display:block;
  width:18px;height:2px;
  background:var(--c-brand);
  border-radius:2px;
  transition:transform .2s ease-out,opacity .2s ease-out;
}

/* ============ 面包屑 ============ */
.crumb-bar{
  border-bottom:1px solid var(--c-line);
  background:var(--c-bg);
}
.crumb{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:8px;
  padding:14px 0;
  font-size:13px;
  color:var(--c-ink-3);
}
.crumb li{display:inline-flex;align-items:center;gap:8px;}
.crumb li + li::before{content:"/";color:var(--c-line);}
.crumb a{color:var(--c-ink-2);}
.crumb a:hover{color:var(--c-brand);}
.crumb .current{color:var(--c-brand);font-weight:500;}

/* ============ 页头 ============ */
.page-hero{
  padding:48px 0 0;
}
.page-hero-inner{
  display:grid;
  grid-template-columns:1.08fr .92fr;
  gap:40px;
  align-items:center;
}
.eyebrow{
  display:inline-flex;
  align-items:center;
  gap:8px;
  height:26px;
  padding:0 12px;
  border-radius:var(--r-pill);
  background:var(--c-surface-alt);
  color:var(--c-brand);
  font-size:12px;
  font-weight:600;
  letter-spacing:.04em;
  margin-bottom:18px;
}
.eyebrow::before{
  content:"";
  width:8px;height:8px;border-radius:50%;
  background:var(--c-accent);
}
.page-hero h1{
  font-size:clamp(30px,4.4vw,50px);
  line-height:1.24;
  font-weight:800;
  letter-spacing:.2px;
  color:var(--c-brand-deep);
}
.page-hero h1 .h1-sub{
  display:block;
  margin-top:10px;
  font-size:clamp(16px,1.6vw,20px);
  font-weight:600;
  color:var(--c-brand-soft);
  letter-spacing:.02em;
}
.page-hero .lede{
  margin-top:18px;
  max-width:56ch;
  font-size:16px;
  color:var(--c-ink-2);
}
.hero-actions{
  display:flex;
  flex-wrap:wrap;
  gap:12px;
  margin-top:26px;
}
.hero-media{
  position:relative;
  border-radius:var(--r-lg);
  overflow:hidden;
  box-shadow:var(--sh-2);
  aspect-ratio:16/10;
  background:var(--c-surface-alt);
}
.hero-media img{
  width:100%;height:100%;
  object-fit:cover;
}
.hero-media::after{
  content:"";
  position:absolute;inset:0;
  background:linear-gradient(140deg,rgba(8,42,36,.55),rgba(8,42,36,.05) 65%);
}
.hero-media .media-tag{
  position:absolute;
  left:16px;bottom:16px;
  z-index:2;
  display:inline-flex;
  align-items:center;
  gap:8px;
  height:26px;
  padding:0 12px;
  border-radius:var(--r-pill);
  background:rgba(255,255,255,.92);
  color:var(--c-brand-deep);
  font-size:12px;
  font-weight:600;
}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  height:48px;
  padding:0 24px;
  border-radius:var(--r-sm);
  font-size:15px;
  font-weight:600;
  letter-spacing:.01em;
  transition:background-color .18s ease-out,color .18s ease-out,border-color .18s ease-out,transform .18s ease-out,box-shadow .18s ease-out;
}
.btn-primary{background:var(--c-accent);color:var(--c-brand-deep);box-shadow:var(--sh-1);}
.btn-primary:hover{filter:brightness(1.04);transform:translateY(-1px);box-shadow:var(--sh-2);}
.btn-primary:active{transform:translateY(1px);box-shadow:none;}
.btn-ghost{
  background:transparent;
  border:1.5px solid var(--c-brand);
  color:var(--c-brand);
  padding:0 22px;
}
.btn-ghost:hover{background:var(--c-brand);color:#fff;}
.btn-ghost:active{transform:translateY(1px);}
.btn-sm{height:40px;font-size:14px;padding:0 18px;}
.btn:disabled{opacity:.45;cursor:not-allowed;}

/* ============ 统计条 ============ */
.stat-strip{
  margin-top:56px;
  background:var(--c-brand-deep);
  color:#fff;
  position:relative;
  overflow:hidden;
}
.stat-strip::before{
  content:"";
  position:absolute;inset:0;
  background-image:radial-gradient(circle at 12% 120%,rgba(198,242,78,.16),transparent 55%),
                   repeating-linear-gradient(115deg,rgba(255,255,255,.05) 0 1px,transparent 1px 46px);
  pointer-events:none;
}
.stat-grid{
  position:relative;
  display:grid;
  grid-template-columns:repeat(4,1fr);
  gap:0;
  padding:8px 0;
}
.stat-cell{
  padding:26px 24px 30px;
  border-left:1px solid var(--c-line-dark);
}
.stat-cell:first-child{border-left:0;}
.stat-num{
  font-family:var(--ff-num);
  font-size:clamp(34px,4.4vw,52px);
  font-weight:700;
  line-height:1;
  letter-spacing:.06em;
  color:var(--c-accent);
}
.stat-num small{
  font-size:15px;
  font-weight:600;
  letter-spacing:.06em;
  margin-left:4px;
  color:rgba(255,255,255,.75);
}
.stat-label{
  margin-top:10px;
  font-size:14px;
  color:rgba(255,255,255,.78);
}

/* ============ 通用区块 ============ */
.section{padding:64px 0;}
@media(min-width:768px){.section{padding:80px 0;}}
@media(min-width:1200px){.section{padding:96px 0;}}
.section-head{margin-bottom:36px;}
.section-head h2{
  font-size:clamp(24px,3vw,34px);
  font-weight:700;
  line-height:1.34;
  color:var(--c-brand-deep);
  letter-spacing:.2px;
}
.section-head .desc{
  margin-top:12px;
  max-width:62ch;
  font-size:16px;
  color:var(--c-ink-2);
}
.section-head--split{
  display:flex;
  align-items:flex-end;
  justify-content:space-between;
  gap:24px;
  flex-wrap:wrap;
}

/* ============ 杂志式双栏 ============ */
.magazine{
  display:grid;
  grid-template-columns:1.55fr 1fr;
  gap:32px;
  align-items:start;
}
.feature-block{
  background:var(--c-surface);
  border:1px solid var(--c-line);
  border-radius:var(--r-lg);
  overflow:hidden;
  box-shadow:var(--sh-1);
  transition:box-shadow .2s ease-out,transform .2s ease-out;
  margin-bottom:32px;
}
.feature-block:last-child{margin-bottom:0;}
.feature-block:hover{box-shadow:var(--sh-2);transform:translateY(-2px);}
.feature-media{
  position:relative;
  aspect-ratio:16/9;
  background:var(--c-surface-alt);
  overflow:hidden;
}
.feature-media img{
  width:100%;height:100%;
  object-fit:cover;
  transition:transform .3s ease-out;
}
.feature-block:hover .feature-media img{transform:scale(1.04);}
.feature-media .badge{
  position:absolute;
  top:14px;left:14px;
}
.feature-body{padding:26px 26px 30px;}
.feature-body h3{
  font-size:clamp(19px,2vw,22px);
  font-weight:700;
  line-height:1.45;
  color:var(--c-brand-deep);
}
.feature-body p{
  margin-top:12px;
  font-size:16px;
  color:var(--c-ink-2);
}
.point-list{margin-top:18px;display:grid;gap:10px;}
.point-list li{
  position:relative;
  padding-left:22px;
  font-size:15px;
  color:var(--c-ink-2);
}
.point-list li::before{
  content:"";
  position:absolute;
  left:0;top:11px;
  width:10px;height:10px;
  border-radius:2px;
  background:var(--c-accent);
}
.feature-meta{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:10px;
  margin-top:20px;
  padding-top:16px;
  border-top:1px solid var(--c-line);
}
.meta-num{
  font-family:var(--ff-num);
  font-size:14px;
  font-weight:600;
  letter-spacing:.06em;
  color:var(--c-ink-3);
}

/* 徽章 */
.badge{
  display:inline-flex;
  align-items:center;
  height:24px;
  padding:0 12px;
  border-radius:var(--r-pill);
  font-size:12px;
  font-weight:600;
  letter-spacing:.02em;
}
.badge-cat{background:var(--c-surface-alt);color:var(--c-brand);}
.badge-strong{background:var(--c-cta);color:#fff;}
.badge-outline{border:1px solid var(--c-line);color:var(--c-ink-2);background:rgba(255,255,255,.9);}

/* 右栏小卡 */
.mini-stack{display:grid;gap:20px;}
.mini-card{
  display:grid;
  grid-template-columns:104px 1fr;
  gap:16px;
  align-items:center;
  background:var(--c-surface);
  border:1px solid var(--c-line);
  border-radius:var(--r-md);
  padding:14px;
  box-shadow:var(--sh-1);
  transition:transform .2s ease-out,box-shadow .2s ease-out,border-color .2s ease-out;
}
.mini-card:hover{transform:translateY(-3px);box-shadow:var(--sh-3);border-color:var(--c-brand-soft);}
.mini-card .thumb{
  width:104px;
  aspect-ratio:4/3;
  border-radius:var(--r-sm);
  overflow:hidden;
  background:var(--c-surface-alt);
}
.mini-card .thumb img{width:100%;height:100%;object-fit:cover;}
.mini-card h3{
  font-size:16px;
  font-weight:600;
  line-height:1.5;
  color:var(--c-brand-deep);
}
.mini-card p{
  margin-top:6px;
  font-size:14px;
  color:var(--c-ink-2);
  display:-webkit-box;
  -webkit-line-clamp:2;
  -webkit-box-orient:vertical;
  overflow:hidden;
}
.mini-card .mini-link{
  display:inline-block;
  margin-top:8px;
  font-size:13px;
  font-weight:600;
  color:var(--c-brand);
  border-bottom:2px solid var(--c-accent);
  padding-bottom:1px;
}
.mini-card .mini-link:hover{color:var(--c-brand-deep);}

.aside-note{
  margin-top:20px;
  background:var(--c-surface-alt);
  border-radius:var(--r-md);
  padding:20px;
}
.aside-note h3{
  font-size:15px;
  font-weight:700;
  color:var(--c-brand-deep);
}
.aside-note p{
  margin-top:8px;
  font-size:14px;
  color:var(--c-ink-2);
}
.aside-note .note-link{
  display:inline-block;
  margin-top:12px;
  font-size:14px;
  font-weight:600;
  color:var(--c-brand);
  border-bottom:2px solid var(--c-accent);
  padding-bottom:1px;
}

/* ============ 深色引言带 ============ */
.quote-band{
  background:var(--c-brand-deep);
  color:#fff;
  padding:64px 0;
  position:relative;
  overflow:hidden;
}
.quote-band::before{
  content:"";
  position:absolute;
  right:-120px;top:-120px;
  width:420px;height:420px;
  border:1px solid rgba(198,242,78,.22);
  border-radius:50%;
}
.quote-inner{
  position:relative;
  display:grid;
  grid-template-columns:.9fr 1.1fr;
  gap:40px;
  align-items:center;
}
.quote-inner .quote-lead{
  font-family:var(--ff-num);
  font-size:clamp(30px,3.6vw,44px);
  font-weight:700;
  letter-spacing:.06em;
  line-height:1.1;
  color:var(--c-accent);
}
.quote-text{
  border-left:3px solid var(--c-accent);
  padding-left:24px;
  font-size:17px;
  line-height:1.85;
  color:rgba(255,255,255,.86);
}
.quote-text .quote-src{
  display:block;
  margin-top:14px;
  font-size:13px;
  color:rgba(255,255,255,.6);
}

/* ============ 内链区 ============ */
.link-grid{
  display:grid;
  grid-template-columns:repeat(4,1fr);
  gap:20px;
}
.link-card{
  display:flex;
  flex-direction:column;
  justify-content:space-between;
  gap:18px;
  min-height:180px;
  padding:24px;
  background:var(--c-surface);
  border:1px solid var(--c-line);
  border-radius:var(--r-md);
  transition:transform .2s ease-out,box-shadow .2s ease-out,border-color .2s ease-out;
}
.link-card:hover{transform:translateY(-3px);box-shadow:var(--sh-3);border-color:var(--c-brand-soft);}
.link-card .link-kicker{
  font-family:var(--ff-num);
  font-size:13px;
  font-weight:600;
  letter-spacing:.06em;
  color:var(--c-ink-3);
}
.link-card h3{
  margin-top:10px;
  font-size:17px;
  font-weight:600;
  line-height:1.5;
  color:var(--c-brand-deep);
}
.link-card p{
  margin-top:8px;
  font-size:14px;
  color:var(--c-ink-2);
}
.link-card .link-go{
  display:inline-flex;
  align-items:center;
  gap:6px;
  font-size:14px;
  font-weight:600;
  color:var(--c-brand);
  border-bottom:2px solid var(--c-accent);
  align-self:flex-start;
  padding-bottom:1px;
}

/* ============ FAQ ============ */
.faq-wrap{max-width:860px;margin:0 auto;}
.faq-item{
  background:var(--c-surface);
  border:1px solid var(--c-line);
  border-radius:12px;
  padding:20px 24px;
  margin-bottom:12px;
  transition:border-color .18s ease-out,box-shadow .18s ease-out;
}
.faq-item:hover{border-color:var(--c-brand-soft);}
.faq-item.is-open{border-color:var(--c-brand-soft);box-shadow:var(--sh-2);border-left:3px solid var(--c-accent);}
.faq-q{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  width:100%;
  text-align:left;
  font-size:17px;
  font-weight:600;
  line-height:1.5;
  color:var(--c-brand-deep);
  padding:0;
}
.faq-q .faq-icon{
  position:relative;
  flex:0 0 auto;
  width:20px;height:20px;
}
.faq-q .faq-icon::before,
.faq-q .faq-icon::after{
  content:"";
  position:absolute;
  background:var(--c-brand);
  border-radius:2px;
  transition:transform .2s ease-out,opacity .2s ease-out;
}
.faq-q .faq-icon::before{left:0;top:9px;width:20px;height:2px;}
.faq-q .faq-icon::after{top:0;left:9px;width:2px;height:20px;}
.faq-item.is-open .faq-q .faq-icon::after{transform:rotate(90deg);opacity:0;}
.faq-a{
  display:none;
  margin-top:12px;
  font-size:15px;
  line-height:1.8;
  color:var(--c-ink-2);
}
.faq-item.is-open .faq-a{display:block;}

/* ============ 返回顶部条 ============ */
.backtop-bar{
  padding:0 0 56px;
}
.backtop-inner{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  padding:24px 26px;
  background:var(--c-surface-alt);
  border-radius:var(--r-md);
}
.backtop-inner p{font-size:15px;color:var(--c-ink-2);}

/* ============ 浮动返回顶部 ============ */
.float-top{
  position:fixed;
  right:24px;
  bottom:24px;
  z-index:80;
  width:48px;height:48px;
  border-radius:50%;
  background:var(--c-surface);
  border:1px solid var(--c-brand);
  color:var(--c-brand);
  display:flex;
  align-items:center;
  justify-content:center;
  box-shadow:var(--sh-2);
  opacity:0;
  transform:translateY(12px);
  pointer-events:none;
  transition:opacity .2s ease-out,transform .2s ease-out,background-color .18s ease-out,color .18s ease-out;
}
.float-top.is-show{opacity:1;transform:translateY(0);pointer-events:auto;}
.float-top:hover{background:var(--c-brand);color:#fff;}
.float-top svg{width:20px;height:20px;}

/* ============ 页脚 ============ */
.site-footer{
  background:var(--c-brand-deep);
  color:#fff;
  padding:64px 0 0;
  margin-top:8px;
}
.footer-grid{
  display:grid;
  grid-template-columns:1.5fr 1fr 1fr 1fr;
  gap:32px;
  padding-bottom:40px;
}
.site-footer .logo{margin-bottom:16px;}
.footer-brand p{
  font-size:14px;
  line-height:1.8;
  color:rgba(255,255,255,.78);
  max-width:38ch;
}
.footer-brand .footer-icp{
  margin-top:14px;
  font-size:13px;
  color:rgba(255,255,255,.55);
}
.footer-col h3{
  font-size:15px;
  font-weight:700;
  color:#fff;
  margin-bottom:16px;
  letter-spacing:.02em;
}
.footer-col ul{display:grid;gap:10px;}
.footer-col li{font-size:14px;color:rgba(255,255,255,.78);}
.footer-col a{color:rgba(255,255,255,.78);display:inline-block;}
.footer-col a:hover{color:var(--c-accent);transform:translateX(2px);}
.footer-bottom{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  justify-content:space-between;
  gap:12px;
  padding:20px 0 28px;
  border-top:1px solid var(--c-line-dark);
  font-size:13px;
  color:rgba(255,255,255,.62);
}
.footer-bottom a{color:rgba(255,255,255,.78);}
.footer-bottom a:hover{color:var(--c-accent);}

/* ============ 响应式 ============ */
@media(max-width:1199px){
  .magazine{grid-template-columns:1.35fr 1fr;}
  .link-grid{grid-template-columns:repeat(2,1fr);}
  .quote-inner{grid-template-columns:1fr;gap:24px;}
}
@media(max-width:991px){
  .nav-wrap{flex-wrap:wrap;padding-top:12px;padding-bottom:12px;gap:12px;}
  .nav-search{order:3;flex:1 1 100%;margin:0;height:44px;min-width:0;}
  .nav-search input{font-size:14px;}
  .nav-search button{height:34px;padding:0 16px;}
  .nav-toggle{display:flex;margin-left:auto;}
  .nav-links{
    position:fixed;
    inset:0;
    z-index:90;
    display:flex;
    flex-direction:column;
    gap:0;
    margin:0;
    padding:88px 24px 40px;
    background:var(--c-bg);
    overflow-y:auto;
    opacity:0;
    transform:translateY(-8px);
    pointer-events:none;
    transition:opacity .2s ease-out,transform .2s ease-out;
  }
  .nav-links.is-open{opacity:1;transform:none;pointer-events:auto;}
  .nav-search--panel{display:flex;order:0;flex:0 0 auto;margin:0 0 16px;height:48px;background:var(--c-surface);}
  .nav-search--panel button{height:38px;}
  .nav-links > a{
    height:52px;
    padding:0;
    font-size:16px;
    border-bottom:1px solid var(--c-line);
    border-radius:0;
    width:100%;
    justify-content:flex-start;
  }
  .nav-links > a:hover{background:transparent;color:var(--c-brand);}
  .nav-links > a.is-active::after{left:0;right:auto;width:28px;bottom:0;}

  .page-hero{padding-top:36px;}
  .page-hero-inner{grid-template-columns:1fr;gap:28px;}
  .hero-media{order:-1;}
  .stat-grid{grid-template-columns:repeat(2,1fr);}
  .stat-cell{padding:22px 18px 24px;}
  .stat-cell:nth-child(odd){border-left:0;}
  .stat-cell:nth-child(n+3){border-top:1px solid var(--c-line-dark);}
  .magazine{grid-template-columns:1fr;}
  .mini-stack{grid-template-columns:1fr;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px;}
  .page-hero .lede{max-width:none;}
}
@media(max-width:767px){
  .section{padding:56px 0;}
  .stat-strip{margin-top:40px;}
  .feature-body{padding:22px 20px 26px;}
  .quote-band{padding:48px 0;}
  .quote-text{padding-left:18px;font-size:16px;}
  .link-grid{grid-template-columns:1fr;}
  .float-top{right:16px;bottom:16px;width:44px;height:44px;}
  body{padding-bottom:0;}
}
@media(max-width:479px){
  .container{padding-left:20px;padding-right:20px;}
  .logo-text{font-size:16px;}
  .stat-grid{grid-template-columns:1fr;}
  .stat-cell{border-left:0;border-top:1px solid var(--c-line-dark);}
  .stat-cell:first-child{border-top:0;}
  .mini-card{grid-template-columns:84px 1fr;gap:12px;}
  .mini-card .thumb{width:84px;}
  .footer-grid{grid-template-columns:1fr;}
  .btn{width:100%;}
  .hero-actions{flex-direction:column;}
  .hero-actions .btn{width:100%;}
}
@media(prefers-reduced-motion:reduce){
  html{scroll-behavior:auto;}
  *{transition:none !important;animation:none !important;}
  .feature-block:hover,.mini-card:hover,.link-card:hover{transform:none;}
}