/* roulang page: index */
:root{
    --brand:#6C4CF1;
    --brand-hover:#7C5FF5;
    --brand-soft:#EEE9FE;
    --brand-line:#D9D0FB;
    --lime:#C8F14E;
    --ink:#0F1216;
    --bg:#F5F6F3;
    --text:#1A1F26;
    --muted:#5C6673;
    --line:#E3E6E0;
    --amber:#FFB63D;
    --radius:16px;
    --radius-lg:20px;
    --shadow-1:0 2px 10px rgba(15,18,22,.05);
    --shadow-2:0 10px 28px rgba(15,18,22,.10);
    --maxw:1200px;
  }

  *,*::before,*::after{box-sizing:border-box}
  html{scroll-behavior:smooth}
  body.site-body{
    margin:0;
    font-family:-apple-system,"PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;
    background:var(--bg);
    color:var(--text);
    font-size:16px;
    line-height:1.8;
    -webkit-font-smoothing:antialiased;
    overflow-x:hidden;
  }
  body.site-body img{max-width:100%;display:block;border-style:none}
  body.site-body a{color:inherit;text-decoration:none}
  body.site-body p{margin:0 0 12px}
  body.site-body h1,body.site-body h2,body.site-body h3,body.site-body h4{margin:0;line-height:1.3}
  body.site-body ul{margin:0;padding:0;list-style:none}
  body.site-body button{font:inherit;cursor:pointer}
  body.site-body input{font:inherit}
  :focus-visible{outline:2px solid var(--lime);outline-offset:2px;border-radius:6px}

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

  .num{font-variant-numeric:tabular-nums}

  /* ============ Header ============ */
  .site-header{
    position:sticky;top:0;z-index:60;
    background:rgba(245,246,243,.88);
    -webkit-backdrop-filter:blur(12px);
    backdrop-filter:blur(12px);
    border-bottom:1px solid var(--line);
    transition:box-shadow .22s ease;
  }
  .site-header.is-scrolled{box-shadow:0 8px 24px rgba(15,18,22,.08)}
  .nav-inner{display:flex;align-items:center;justify-content:space-between;gap:16px;height:72px}
  .brand{display:flex;align-items:center;gap:10px;font-weight:800;font-size:18px;letter-spacing:-.01em;color:var(--text)}
  .brand-mark{position:relative;width:26px;height:26px;border-radius:8px;background:var(--brand);flex:0 0 auto}
  .brand-mark::after{content:"";position:absolute;inset:7px;border-radius:3px;background:var(--lime)}
  .nav-links{display:none;align-items:center;gap:28px}
  .nav-link{position:relative;font-size:15px;font-weight:500;color:var(--muted);padding:6px 0;transition:color .18s ease}
  .nav-link:hover{color:var(--text)}
  .nav-link.active{color:var(--text)}
  .nav-link.active::after{content:"";position:absolute;left:0;right:0;bottom:-2px;height:2px;border-radius:2px;background:var(--lime)}
  .nav-actions{display:flex;align-items:center;gap:10px}
  .nav-toggle{
    display:inline-flex;flex-direction:column;justify-content:center;gap:5px;
    width:44px;height:44px;border:1px solid var(--line);border-radius:12px;background:#fff;
    align-items:center;transition:background .18s ease,border-color .18s ease;
  }
  .nav-toggle span{display:block;width:18px;height:2px;border-radius:2px;background:var(--text);transition:transform .2s ease,opacity .2s ease}
  .nav-toggle:hover{background:var(--brand-soft);border-color:var(--brand-line)}
  .nav-toggle.is-open span:nth-child(1){transform:translateY(7px) rotate(45deg)}
  .nav-toggle.is-open span:nth-child(2){opacity:0}
  .nav-toggle.is-open span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}
  .nav-mobile{display:none;flex-direction:column;gap:6px;padding:12px 20px 20px;border-top:1px solid var(--line);background:#fff}
  .nav-mobile.open{display:flex}
  .nav-mobile-link{padding:12px 14px;border-radius:12px;font-size:15.5px;font-weight:500;color:var(--muted);transition:background .18s ease,color .18s ease}
  .nav-mobile-link:hover{background:var(--brand-soft);color:var(--brand)}
  .nav-mobile-link.active{background:var(--brand-soft);color:var(--brand);font-weight:600}
  @media (min-width:1024px){
    .nav-links{display:flex}
    .nav-toggle{display:none}
    .nav-mobile{display:none !important}
  }

  /* ============ Buttons ============ */
  .btn{
    display:inline-flex;align-items:center;justify-content:center;gap:8px;
    border-radius:12px;padding:14px 26px;font-size:15px;font-weight:600;
    border:1px solid transparent;cursor:pointer;
    transition:transform .18s ease,box-shadow .18s ease,background-color .18s ease,color .18s ease,border-color .18s ease;
    white-space:nowrap;
  }
  .btn-primary{background:var(--brand);color:#fff;box-shadow:0 6px 18px rgba(108,76,241,.22)}
  .btn-primary:hover{background:var(--brand-hover);transform:translateY(-2px);box-shadow:0 12px 26px rgba(108,76,241,.30)}
  .btn-primary:active{transform:translateY(0);box-shadow:0 4px 12px rgba(108,76,241,.22)}
  .btn-ghost{background:transparent;border-color:var(--line);color:var(--text)}
  .btn-ghost:hover{background:var(--brand-soft);border-color:var(--brand-line);color:var(--brand);transform:translateY(-2px)}
  .btn-sm{padding:10px 18px;font-size:14px;border-radius:10px}
  .btn-block{width:100%}
  .btn-lime{background:var(--lime);color:var(--ink);box-shadow:0 6px 18px rgba(200,241,78,.30)}
  .btn-lime:hover{background:#D6F86A;transform:translateY(-2px);box-shadow:0 12px 26px rgba(200,241,78,.36)}

  /* ============ Sections ============ */
  .section{padding:56px 0}
  @media (min-width:1024px){ .section{padding:96px 0} }
  .section-tight{padding:40px 0}
  @media (min-width:1024px){ .section-tight{padding:64px 0} }
  .section-head{max-width:720px;margin-bottom:32px}
  @media (min-width:1024px){ .section-head{margin-bottom:48px} }
  .eyebrow{
    display:inline-flex;align-items:center;gap:8px;
    font-size:13px;font-weight:600;color:var(--brand);
    background:var(--brand-soft);border-radius:999px;padding:5px 12px;margin-bottom:14px;
  }
  .eyebrow::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--lime)}
  .h2{font-size:clamp(24px,2.8vw,36px);font-weight:700;letter-spacing:-.015em}
  .section-sub{margin-top:12px;color:var(--muted);font-size:16px}

  /* ============ Hero ============ */
  .hero{position:relative;padding:44px 0 56px;overflow:hidden}
  @media (min-width:1024px){ .hero{padding:72px 0 96px} }
  .hero-dots{
    position:absolute;top:40px;right:-60px;width:280px;height:280px;pointer-events:none;
    background-image:radial-gradient(rgba(108,76,241,.28) 1.6px,transparent 1.6px);
    background-size:18px 18px;opacity:.55;
  }
  .hero-grid{position:relative;display:grid;grid-template-columns:1fr;gap:40px;align-items:center}
  @media (min-width:1024px){ .hero-grid{grid-template-columns:1.05fr .95fr;gap:56px} }
  .hero-title{font-size:clamp(30px,4.4vw,52px);font-weight:800;letter-spacing:-.02em;line-height:1.16}
  .hero-sub{margin-top:16px;font-size:17px;color:var(--muted);max-width:560px}
  .hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:28px}
  .hero-points{display:flex;flex-wrap:wrap;gap:24px;margin-top:32px;padding-top:24px;border-top:1px solid var(--line)}
  .hero-point strong{display:block;font-size:20px;font-weight:700}
  .hero-point span{font-size:13.5px;color:var(--muted)}
  .hero-figure{position:relative}
  .hero-figure::before{
    content:"";position:absolute;right:-12px;bottom:-12px;width:110px;height:110px;
    border-radius:18px;background:var(--lime);opacity:.9;z-index:0;
  }
  .hero-figure img{
    position:relative;z-index:1;width:100%;aspect-ratio:4/3;object-fit:cover;
    border-radius:var(--radius-lg);border:1px solid var(--line);box-shadow:var(--shadow-2);
  }
  .hero-figure-tag{
    position:absolute;left:16px;bottom:16px;z-index:2;
    background:rgba(15,18,22,.82);color:#fff;font-size:13px;font-weight:500;
    padding:8px 14px;border-radius:999px;-webkit-backdrop-filter:blur(6px);backdrop-filter:blur(6px);
  }

  /* ============ Value strip ============ */
  .value-grid{display:grid;grid-template-columns:1fr;gap:20px}
  @media (min-width:768px){ .value-grid{grid-template-columns:repeat(3,1fr);gap:24px} }
  .value-item{
    background:#fff;border:1px solid var(--line);border-radius:var(--radius);
    padding:22px;box-shadow:var(--shadow-1);transition:transform .2s ease,box-shadow .2s ease;
  }
  .value-item:hover{transform:translateY(-3px);box-shadow:var(--shadow-2)}
  .value-icon{
    width:40px;height:40px;border-radius:12px;background:var(--brand-soft);color:var(--brand);
    display:flex;align-items:center;justify-content:center;font-weight:800;font-size:16px;margin-bottom:14px;
  }
  .value-item h3{font-size:18px;font-weight:600;margin-bottom:8px}
  .value-item p{font-size:14.5px;color:var(--muted);margin:0}

  /* ============ Story ============ */
  .story-row{display:grid;grid-template-columns:1fr;gap:32px;align-items:center}
  .story-row + .story-row{margin-top:48px}
  @media (min-width:1024px){
    .story-row{grid-template-columns:1fr 1fr;gap:56px}
    .story-row + .story-row{margin-top:72px}
    .story-row--rev .story-text{order:2}
    .story-row--rev .story-media{order:1}
  }
  .story-media img{width:100%;aspect-ratio:16/11;object-fit:cover;border-radius:var(--radius-lg);border:1px solid var(--line);box-shadow:var(--shadow-1)}
  .story-text h3{font-size:clamp(20px,2.2vw,26px);font-weight:700;margin-bottom:14px}
  .story-text p{color:var(--muted);font-size:16px}
  .story-list{margin-top:18px;display:flex;flex-direction:column;gap:10px}
  .story-list li{position:relative;padding-left:22px;font-size:15px;color:var(--text)}
  .story-list li::before{content:"";position:absolute;left:0;top:11px;width:8px;height:8px;border-radius:3px;background:var(--lime)}

  /* ============ Cards ============ */
  .card-grid{display:grid;grid-template-columns:1fr;gap:24px}
  @media (min-width:640px){ .card-grid{grid-template-columns:repeat(2,1fr)} }
  @media (min-width:1024px){ .card-grid{grid-template-columns:repeat(3,1fr)} }
  .card{
    display:flex;flex-direction:column;background:#fff;border:1px solid var(--line);
    border-radius:var(--radius);box-shadow:var(--shadow-1);overflow:hidden;
    transition:transform .2s ease,box-shadow .2s ease;
  }
  .card:hover{transform:translateY(-3px);box-shadow:var(--shadow-2)}
  .card-media{aspect-ratio:16/9;overflow:hidden;background:#EDEFEA}
  .card-media img{width:100%;height:100%;object-fit:cover;transition:transform .2s ease}
  .card:hover .card-media img{transform:scale(1.03)}
  .card-body{padding:20px;display:flex;flex-direction:column;gap:12px;flex:1}
  @media (min-width:1024px){ .card-body{padding:24px} }
  .card-title{font-size:19px;font-weight:600;transition:color .18s ease}
  .card:hover .card-title{color:var(--brand)}
  .card-text{font-size:14.5px;color:var(--muted);margin:0;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
  .card-foot{margin-top:auto;display:flex;align-items:center;justify-content:space-between;gap:12px;padding-top:14px;border-top:1px solid var(--line)}
  .card-more{font-size:14px;font-weight:600;color:var(--brand);display:inline-flex;align-items:center;gap:6px}
  .card-more::after{content:"→";transition:transform .18s ease}
  .card:hover .card-more::after{transform:translateX(3px)}

  .badge{
    display:inline-flex;align-items:center;gap:6px;padding:4px 10px;border-radius:999px;
    font-size:12.5px;font-weight:600;background:var(--brand-soft);color:var(--brand);white-space:nowrap;
  }
  .badge-time{background:#FFF3DF;color:#946015}

  /* ============ Post list (CMS) ============ */
  .post-list{display:flex;flex-direction:column;gap:16px}
  .post-item{
    display:flex;flex-direction:column;gap:16px;background:#fff;border:1px solid var(--line);
    border-radius:var(--radius);padding:16px;box-shadow:var(--shadow-1);
    transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
  }
  .post-item:hover{transform:translateY(-3px);box-shadow:var(--shadow-2);border-color:var(--brand-line)}
  @media (min-width:768px){ .post-item{flex-direction:row;align-items:center;padding:18px} }
  .post-thumb{display:block;width:100%;aspect-ratio:16/9;border-radius:12px;overflow:hidden;background:#EDEFEA;flex:0 0 auto}
  @media (min-width:768px){ .post-thumb{width:180px;aspect-ratio:4/3} }
  .post-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .2s ease}
  .post-item:hover .post-thumb img{transform:scale(1.03)}
  .post-main{flex:1;min-width:0}
  .post-title{font-size:18px;font-weight:600;line-height:1.45;margin-bottom:8px;transition:color .18s ease}
  .post-item:hover .post-title{color:var(--brand)}
  .post-summary{font-size:14.5px;color:var(--muted);margin:0 0 12px;display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden}
  .post-meta{display:flex;flex-wrap:wrap;align-items:center;gap:10px;font-size:13px;color:var(--muted)}
  .post-arrow{font-size:14px;font-weight:600;color:var(--brand);display:inline-flex;align-items:center;gap:6px;margin-top:10px}
  .post-arrow::after{content:"→";transition:transform .18s ease}
  .post-item:hover .post-arrow::after{transform:translateX(3px)}

  .empty-state{
    display:flex;flex-direction:column;align-items:center;text-align:center;gap:14px;
    background:#fff;border:1px dashed var(--line);border-radius:var(--radius);padding:48px 24px;
  }
  .empty-icon{
    width:52px;height:52px;border-radius:14px;background:var(--brand-soft);color:var(--brand);
    display:flex;align-items:center;justify-content:center;font-size:22px;font-weight:700;
  }
  .empty-state p{color:var(--muted);margin:0}

  /* ============ Stats ============ */
  .stats-panel{
    background:#fff;border:1px solid var(--line);border-radius:var(--radius-lg);
    padding:28px 20px;box-shadow:var(--shadow-1);
  }
  @media (min-width:1024px){ .stats-panel{padding:40px 32px} }
  .stats{display:grid;grid-template-columns:1fr;gap:24px}
  @media (min-width:640px){ .stats{grid-template-columns:repeat(2,1fr)} }
  @media (min-width:1024px){ .stats{grid-template-columns:repeat(4,1fr)} }
  .stat-item{padding-left:16px;border-left:3px solid var(--line)}
  .stat-item:nth-child(odd){border-left-color:var(--lime)}
  .stat-item:nth-child(even){border-left-color:var(--brand)}
  .stat-num{font-size:30px;font-weight:800;letter-spacing:-.02em;display:block}
  .stat-label{font-size:14px;color:var(--muted);margin-top:6px;display:block}
  .partner-row{display:flex;flex-wrap:wrap;gap:12px;margin-top:28px;padding-top:24px;border-top:1px solid var(--line)}
  .partner-chip{
    font-size:13px;color:var(--muted);background:var(--bg);border:1px solid var(--line);
    border-radius:10px;padding:10px 16px;
  }

  /* ============ FAQ ============ */
  .faq-wrap{background:#fff;border:1px solid var(--line);border-radius:var(--radius-lg);padding:8px 20px;box-shadow:var(--shadow-1)}
  @media (min-width:1024px){ .faq-wrap{padding:8px 32px} }
  .faq-item{border-bottom:1px solid var(--line)}
  .faq-item:last-child{border-bottom:none}
  .faq-q{
    position:relative;width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;
    background:none;border:0;text-align:left;padding:20px 0 20px 16px;
    font-size:17px;font-weight:600;color:var(--text);transition:color .18s ease;
  }
  .faq-q::before{
    content:"";position:absolute;left:0;top:20px;bottom:20px;width:3px;border-radius:3px;
    background:transparent;transition:background .2s ease;
  }
  .faq-q:hover{color:var(--brand)}
  .faq-item.open .faq-q::before{background:var(--lime)}
  .faq-icon{flex:0 0 auto;font-size:20px;line-height:1;color:var(--muted);transition:transform .2s ease}
  .faq-item.open .faq-icon{transform:rotate(45deg);color:var(--brand)}
  .faq-a{max-height:0;overflow:hidden;transition:max-height .3s ease}
  .faq-item.open .faq-a{max-height:360px}
  .faq-a-inner{padding:0 0 20px 16px;font-size:15.5px;color:var(--muted);max-width:820px}

  /* ============ Dark CTA ============ */
  .dark-cta{background:var(--ink);color:#fff;padding:48px 0;position:relative;overflow:hidden}
  @media (min-width:1024px){ .dark-cta{padding:72px 0} }
  .dark-cta::after{
    content:"";position:absolute;right:-80px;top:-80px;width:320px;height:320px;border-radius:50%;
    background:radial-gradient(circle,rgba(200,241,78,.16) 0%,transparent 68%);pointer-events:none;
  }
  .dark-grid{position:relative;display:grid;grid-template-columns:1fr;gap:32px;align-items:center}
  @media (min-width:1024px){ .dark-grid{grid-template-columns:1.1fr .9fr;gap:56px} }
  .dark-tag{display:inline-flex;align-items:center;gap:8px;font-size:13px;font-weight:600;color:var(--lime);letter-spacing:.02em;margin-bottom:14px}
  .dark-tag::before{content:"";width:8px;height:8px;border-radius:3px;background:var(--lime)}
  .dark-cta h2{font-size:clamp(24px,2.8vw,34px);font-weight:700;color:#fff}
  .dark-cta p{color:#B9C0C9;margin-top:12px;font-size:15.5px}
  .sub-form{display:flex;flex-wrap:wrap;gap:12px}
  .sub-input{
    flex:1 1 220px;min-width:0;height:46px;border-radius:10px;border:1px solid rgba(255,255,255,.18);
    background:rgba(255,255,255,.06);color:#fff;padding:0 16px;font-size:15px;
    transition:border-color .18s ease,box-shadow .18s ease;
  }
  .sub-input::placeholder{color:#8C949D}
  .sub-input:focus{outline:none;border-color:var(--brand);box-shadow:0 0 0 2px rgba(108,76,241,.55)}
  .sub-note{font-size:13px;color:#8C949D;margin-top:12px}

  /* ============ Footer ============ */
  .site-footer{background:var(--ink);color:#C9CFD6;padding:56px 0 0}
  @media (min-width:1024px){ .site-footer{padding:72px 0 0} }
  .footer-grid{display:grid;grid-template-columns:1fr;gap:32px}
  @media (min-width:768px){ .footer-grid{grid-template-columns:repeat(2,1fr)} }
  @media (min-width:1024px){ .footer-grid{grid-template-columns:1.5fr 1fr 1fr 1fr;gap:40px} }
  .footer-brand{display:flex;align-items:center;gap:10px;font-size:18px;font-weight:800;color:#fff;margin-bottom:14px}
  .footer-brand .brand-mark::after{background:var(--lime)}
  .footer-about{font-size:14.5px;color:#9AA3AC;max-width:340px}
  .footer-title{font-size:15px;font-weight:600;color:#fff;margin-bottom:16px}
  .footer-list{display:flex;flex-direction:column;gap:10px}
  .footer-link{font-size:14.5px;color:#C9CFD6;transition:color .18s ease}
  .footer-link:hover{color:var(--lime)}
  .footer-text{font-size:14.5px;color:#9AA3AC}
  .footer-bottom{
    margin-top:40px;border-top:1px solid rgba(255,255,255,.12);
    padding:20px 0;display:flex;flex-wrap:wrap;gap:10px;justify-content:space-between;
    font-size:13px;color:#8B949E;
  }

  @media (max-width:520px){
    .hero-actions .btn{width:100%}
    .dark-cta .btn{width:100%}
  }

/* roulang page: article */
:root{
  --primary:#6C4CF1;
  --primary-hover:#7B5CF5;
  --primary-soft:#EFEBFE;
  --lime:#C8F14E;
  --ink:#0F1216;
  --bg:#F5F6F3;
  --amber:#FFB63D;
  --amber-soft:#FFF3DF;
  --text:#1A1F26;
  --muted:#5C6673;
  --border:#E3E6E0;
  --card:#FFFFFF;
  --r-sm:10px;
  --r-md:12px;
  --r-lg:16px;
  --r-xl:20px;
  --sh-1:0 2px 10px rgba(15,18,22,.05);
  --sh-2:0 10px 28px rgba(15,18,22,.10);
  --wrap:1200px;
  --font:-apple-system,BlinkMacSystemFont,"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Segoe UI",sans-serif;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;}
body{
  margin:0;
  font-family:var(--font);
  font-size:16px;
  line-height:1.8;
  color:var(--text);
  background:var(--bg);
  -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;}
h1,h2,h3,h4,p,ul,ol,figure,blockquote{margin:0;}
ul,ol{padding:0;list-style:none;}
time,.num{font-variant-numeric:tabular-nums;}
:focus-visible{outline:2px solid var(--lime);outline-offset:3px;border-radius:4px;}
.wrap{width:100%;max-width:var(--wrap);margin:0 auto;padding:0 32px;}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:14px 26px;border-radius:var(--r-md);border:1px solid transparent;
  font-size:15px;font-weight:600;line-height:1;cursor:pointer;
  transition:transform .2s ease,box-shadow .2s ease,background-color .2s ease,color .2s ease,border-color .2s ease;
}
.btn-primary{background:var(--primary);color:#fff;box-shadow:0 6px 16px rgba(108,76,241,.22);}
.btn-primary:hover{background:var(--primary-hover);transform:translateY(-2px);box-shadow:0 12px 24px rgba(108,76,241,.28);}
.btn-primary:active{transform:translateY(0);box-shadow:0 4px 12px rgba(108,76,241,.20);}
.btn-ghost{background:transparent;color:var(--text);border-color:var(--border);}
.btn-ghost:hover{background:var(--primary-soft);border-color:var(--primary);color:var(--primary);transform:translateY(-2px);}
.btn-sm{padding:10px 18px;font-size:14px;}

/* ---------- 头部导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:80;
  background:rgba(245,246,243,.94);
  backdrop-filter:saturate(160%) blur(10px);
  border-bottom:1px solid var(--border);
  transition:box-shadow .25s ease;
}
.site-header.is-scrolled{box-shadow:var(--sh-1);}
.header-inner{display:flex;align-items:center;justify-content:space-between;gap:24px;height:72px;}
.brand{display:flex;align-items:center;gap:11px;font-size:18px;font-weight:800;letter-spacing:-.01em;color:var(--text);}
.brand:hover .brand-text{color:var(--primary);}
.brand-text{transition:color .2s ease;}
.brand-mark{
  position:relative;width:22px;height:22px;border-radius:6px;background:var(--primary);
  box-shadow:inset 0 0 0 1px rgba(255,255,255,.25);
}
.brand-mark::after{
  content:"";position:absolute;right:-4px;bottom:-4px;width:10px;height:10px;
  border-radius:3px;background:var(--lime);border:2px solid var(--bg);
}
.nav-links{display:flex;align-items:center;gap:30px;}
.nav-link{position:relative;padding:6px 0;font-size:15px;font-weight:500;color:var(--text);transition:color .2s ease;}
.nav-link::after{
  content:"";position:absolute;left:0;right:0;bottom:-4px;height:2px;border-radius:2px;
  background:var(--lime);transform:scaleX(0);transform-origin:left;transition:transform .2s ease;
}
.nav-link:hover{color:var(--primary);}
.nav-link:hover::after,.nav-link.active::after{transform:scaleX(1);}
.nav-link.active{color:var(--primary);font-weight:600;}
.header-actions{display:flex;align-items:center;gap:12px;}
.nav-toggle{
  display:none;width:44px;height:44px;border-radius:var(--r-sm);border:1px solid var(--border);
  background:#fff;cursor:pointer;align-items:center;justify-content:center;padding:0;
}
.nav-toggle span{display:block;width:18px;height:2px;background:var(--text);border-radius:2px;position:relative;}
.nav-toggle span::before,.nav-toggle span::after{
  content:"";position:absolute;left:0;width:18px;height:2px;background:var(--text);border-radius:2px;transition:transform .2s ease;
}
.nav-toggle span::before{top:-6px;}
.nav-toggle span::after{top:6px;}
.mobile-panel{display:none;border-top:1px solid var(--border);background:#fff;padding:16px 0 24px;}
.mobile-panel.is-open{display:block;}
.mobile-panel .wrap{display:flex;flex-direction:column;gap:6px;}
.mobile-link{padding:12px 4px;font-size:16px;font-weight:500;border-bottom:1px solid var(--border);}
.mobile-link.active{color:var(--primary);font-weight:700;}
.mobile-panel .btn{width:100%;margin-top:14px;}

/* ---------- 标题带 ---------- */
.page-band{
  position:relative;background:#fff;border-bottom:1px solid var(--border);
  padding:36px 0 48px;overflow:hidden;
}
.page-band::before{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:linear-gradient(to right,rgba(15,18,22,.045) 1px,transparent 1px),
                   linear-gradient(to bottom,rgba(15,18,22,.045) 1px,transparent 1px);
  background-size:64px 64px;
  mask-image:linear-gradient(180deg,rgba(0,0,0,.7),transparent 85%);
  -webkit-mask-image:linear-gradient(180deg,rgba(0,0,0,.7),transparent 85%);
}
.page-band .wrap{position:relative;}
.breadcrumb{font-size:14px;color:var(--muted);}
.breadcrumb ol{display:flex;flex-wrap:wrap;align-items:center;gap:8px;}
.breadcrumb li{display:flex;align-items:center;gap:8px;}
.breadcrumb li+li::before{content:"/";color:#BFC4BC;}
.breadcrumb a{color:var(--muted);transition:color .2s ease;}
.breadcrumb a:hover{color:var(--primary);}
.breadcrumb [aria-current="page"]{color:var(--text);font-weight:600;}
.article-head{margin-top:26px;max-width:820px;}
.badge{
  display:inline-flex;align-items:center;gap:6px;
  padding:5px 12px;border-radius:999px;font-size:13px;font-weight:600;line-height:1.6;
  background:var(--primary-soft);color:var(--primary);
}
.badge-amber{background:var(--amber-soft);color:#9A6200;}
.badge-lime{background:rgba(200,241,78,.28);color:#41540A;}
.article-title{
  margin-top:16px;
  font-size:clamp(26px,3.4vw,40px);
  font-weight:800;letter-spacing:-.02em;line-height:1.32;color:var(--text);
}
.meta-row{display:flex;flex-wrap:wrap;align-items:center;gap:10px 18px;margin-top:18px;font-size:14px;color:var(--muted);}
.meta-item{display:inline-flex;align-items:center;gap:7px;}
.meta-dot{width:6px;height:6px;border-radius:50%;background:var(--lime);display:inline-block;}

/* ---------- 布局 ---------- */
.section{padding:72px 0;}
.section-tight{padding:52px 0 64px;}
.section-head{max-width:720px;margin-bottom:32px;}
.section-title{font-size:clamp(22px,2.4vw,30px);font-weight:700;letter-spacing:-.02em;line-height:1.35;}
.section-desc{margin-top:12px;color:var(--muted);font-size:15px;}
.divider{height:1px;background:var(--border);border:0;margin:0;}

/* ---------- 正文排版 ---------- */
.article-shell{padding:56px 0 8px;}
.article-main{max-width:800px;margin:0 auto;}
.article-body{
  font-size:17px;line-height:1.9;color:var(--text);
  word-break:break-word;
}
.article-body > * + *{margin-top:1.2em;}
.article-body h2{
  margin-top:2em;font-size:clamp(20px,2.2vw,26px);font-weight:700;line-height:1.45;letter-spacing:-.01em;
  padding-left:14px;border-left:4px solid var(--lime);
}
.article-body h3{margin-top:1.6em;font-size:20px;font-weight:600;line-height:1.5;}
.article-body h4{margin-top:1.4em;font-size:17px;font-weight:700;}
.article-body p{color:var(--text);}
.article-body a{color:var(--primary);border-bottom:1px solid rgba(108,76,241,.35);transition:border-color .2s ease,color .2s ease;}
.article-body a:hover{color:#4E31D8;border-color:#4E31D8;}
.article-body strong{font-weight:700;}
.article-body ul,.article-body ol{padding-left:0;}
.article-body ul li{position:relative;padding-left:24px;margin-top:.65em;}
.article-body ul li::before{
  content:"";position:absolute;left:4px;top:.72em;width:8px;height:8px;border-radius:3px;
  background:var(--lime);box-shadow:0 0 0 3px rgba(200,241,78,.25);
}
.article-body ol{counter-reset:olc;}
.article-body ol li{position:relative;padding-left:36px;margin-top:.65em;counter-increment:olc;}
.article-body ol li::before{
  content:counter(olc);position:absolute;left:0;top:.28em;
  width:24px;height:24px;border-radius:8px;background:var(--primary-soft);color:var(--primary);
  font-size:13px;font-weight:700;display:flex;align-items:center;justify-content:center;
}
.article-body blockquote{
  margin-top:1.6em;padding:20px 24px;border-radius:var(--r-lg);
  background:#fff;border:1px solid var(--border);border-left:4px solid var(--primary);
  color:var(--muted);font-size:16px;
}
.article-body blockquote p{color:var(--muted);}
.article-body img{border-radius:var(--r-lg);border:1px solid var(--border);margin-top:1.6em;}
.article-body figure{margin-top:1.6em;}
.article-body figcaption{margin-top:10px;font-size:13px;color:var(--muted);text-align:center;}
.article-body code{
  background:#fff;border:1px solid var(--border);border-radius:6px;
  padding:2px 6px;font-size:14px;color:#4E31D8;font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;
}
.article-body pre{
  margin-top:1.6em;padding:18px 20px;border-radius:var(--r-lg);
  background:#fff;border:1px solid var(--border);overflow-x:auto;
}
.article-body pre code{background:transparent;border:0;padding:0;color:var(--text);font-size:14px;line-height:1.8;}
.article-body table{width:100%;border-collapse:collapse;margin-top:1.6em;font-size:15px;background:#fff;}
.article-body th,.article-body td{border:1px solid var(--border);padding:12px 14px;text-align:left;}
.article-body th{background:#FAFAF8;font-weight:600;}
.article-body hr{border:0;height:1px;background:var(--border);margin:2.2em 0;}

/* ---------- 空态 ---------- */
.empty-state{
  max-width:800px;margin:0 auto;background:#fff;border:1px solid var(--border);
  border-radius:var(--r-xl);padding:56px 32px;text-align:center;box-shadow:var(--sh-1);
}
.empty-icon{
  width:64px;height:64px;margin:0 auto 20px;border-radius:20px;background:var(--primary-soft);
  display:flex;align-items:center;justify-content:center;color:var(--primary);font-size:26px;font-weight:800;
}
.empty-state h2{font-size:22px;font-weight:700;}
.empty-state p{margin-top:12px;color:var(--muted);font-size:15px;}
.empty-state .btn{margin-top:24px;}

/* ---------- 标签 ---------- */
.tag-row{display:flex;flex-wrap:wrap;align-items:center;gap:10px;margin-top:36px;}
.tag-label{font-size:14px;color:var(--muted);}
.tag{
  display:inline-flex;align-items:center;padding:6px 14px;border-radius:999px;
  font-size:13px;font-weight:600;background:#fff;border:1px solid var(--border);color:var(--muted);
  transition:all .2s ease;
}
.tag:hover{border-color:var(--primary);color:var(--primary);background:var(--primary-soft);}

/* ---------- 卡片 ---------- */
.card-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;}
.card{
  display:flex;flex-direction:column;background:var(--card);border:1px solid var(--border);
  border-radius:var(--r-lg);overflow:hidden;box-shadow:var(--sh-1);
  transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.card:hover{transform:translateY(-3px);box-shadow:var(--sh-2);border-color:#D6DACF;}
.card-media{aspect-ratio:16/9;overflow:hidden;background:#EDEFEA;}
.card-media img{width:100%;height:100%;object-fit:cover;transition:transform .2s ease;}
.card:hover .card-media img{transform:scale(1.03);}
.card-body{padding:24px;display:flex;flex-direction:column;gap:12px;flex:1;}
.card-title{font-size:18px;font-weight:600;line-height:1.5;transition:color .2s ease;}
.card:hover .card-title{color:var(--primary);}
.card-text{font-size:14px;line-height:1.8;color:var(--muted);}
.clamp-2{display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.clamp-3{display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden;}
.card-meta{display:flex;flex-wrap:wrap;align-items:center;gap:10px;margin-top:auto;font-size:13px;color:var(--muted);}
.link-arrow{display:inline-flex;align-items:center;gap:6px;font-size:14px;font-weight:600;color:var(--primary);margin-top:auto;}
.link-arrow::after{content:"→";transition:transform .2s ease;}
.link-arrow:hover::after{transform:translateX(3px);}

/* ---------- 返回入口 ---------- */
.back-nav{
  display:flex;flex-wrap:wrap;align-items:center;gap:12px;margin-top:40px;
  padding-top:28px;border-top:1px solid var(--border);
}

/* ---------- 深色 CTA ---------- */
.dark-cta{background:var(--ink);color:#fff;padding:72px 0;}
.dark-cta .wrap{display:grid;grid-template-columns:1.1fr .9fr;gap:48px;align-items:center;}
.dark-cta h2{font-size:clamp(24px,2.8vw,34px);font-weight:700;letter-spacing:-.02em;line-height:1.35;}
.dark-cta p{margin-top:14px;color:rgba(255,255,255,.72);font-size:15px;max-width:520px;}
.cta-flag{display:inline-flex;align-items:center;gap:8px;font-size:13px;font-weight:600;color:var(--lime);margin-bottom:14px;}
.cta-flag::before{content:"";width:8px;height:8px;border-radius:3px;background:var(--lime);display:inline-block;}
.subscribe-form{display:flex;flex-wrap:wrap;gap:12px;}
.field{
  flex:1 1 240px;height:46px;padding:0 16px;border-radius:var(--r-sm);
  border:1px solid rgba(255,255,255,.18);background:rgba(255,255,255,.06);color:#fff;
  transition:border-color .2s ease,box-shadow .2s ease,background-color .2s ease;
}
.field::placeholder{color:rgba(255,255,255,.48);}
.field:focus{outline:none;border-color:var(--primary);box-shadow:0 0 0 2px rgba(108,76,241,.55);background:rgba(255,255,255,.10);}
.hint{margin-top:12px;font-size:13px;color:rgba(255,255,255,.52);}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--ink);color:rgba(255,255,255,.72);padding:64px 0 28px;}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:40px;}
.footer-brand{display:flex;align-items:center;gap:11px;font-size:18px;font-weight:800;color:#fff;margin-bottom:16px;}
.footer-about{font-size:14px;line-height:1.85;color:rgba(255,255,255,.62);max-width:320px;}
.footer-title{font-size:14px;font-weight:700;color:#fff;margin-bottom:16px;letter-spacing:.02em;}
.footer-list{display:flex;flex-direction:column;gap:12px;}
.footer-link,.footer-text{font-size:14px;color:rgba(255,255,255,.66);transition:color .2s ease;}
.footer-link:hover{color:var(--lime);}
.footer-bottom{
  margin-top:48px;padding-top:20px;border-top:1px solid rgba(255,255,255,.12);
  display:flex;flex-wrap:wrap;gap:10px 24px;justify-content:space-between;
  font-size:13px;color:rgba(255,255,255,.5);
}

/* ---------- 响应式 ---------- */
@media (max-width:1024px){
  .wrap{padding:0 24px;}
  .nav-links{gap:22px;}
  .nav-link{font-size:14px;}
  .card-grid{grid-template-columns:repeat(2,1fr);}
  .dark-cta .wrap{grid-template-columns:1fr;gap:32px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
}
@media (max-width:900px){
  .nav-links{display:none;}
  .nav-toggle{display:inline-flex;}
  .section{padding:56px 0;}
  .article-shell{padding:44px 0 8px;}
  .dark-cta{padding:48px 0;}
}
@media (max-width:640px){
  .wrap{padding:0 20px;}
  .header-inner{height:64px;gap:12px;}
  .brand{font-size:16px;}
  .header-actions .nav-cta{display:none;}
  .mobile-panel .nav-cta-mobile{display:inline-flex;}
  .card-grid{grid-template-columns:1fr;}
  .article-body{font-size:16px;line-height:1.9;}
  .card-body{padding:20px;}
  .empty-state{padding:40px 20px;}
  .footer-grid{grid-template-columns:1fr;gap:28px;}
  .footer-bottom{flex-direction:column;}
  .dark-cta .wrap{gap:24px;}
  .btn{width:100%;}
  .back-nav .btn{width:auto;}
}
@media (min-width:641px){
  .mobile-panel .nav-cta-mobile{display:none;}
}

/* roulang page: category1 */
:root{
  --violet:#6C4CF1;
  --violet-hover:#7A5DF4;
  --violet-soft:#EFEBFE;
  --violet-line:#D9D2FB;
  --lime:#C8F14E;
  --ink:#0F1216;
  --bg:#F5F6F3;
  --amber:#FFB63D;
  --amber-soft:#FFF2DC;
  --text:#1A1F26;
  --muted:#5C6673;
  --line:#E3E6E0;
  --white:#FFFFFF;
  --radius-sm:10px;
  --radius-card:16px;
  --radius-lg:20px;
  --radius-pill:999px;
  --shadow-1:0 2px 10px rgba(15,18,22,.05);
  --shadow-2:0 10px 28px rgba(15,18,22,.10);
  --container:1200px;
  --space-1:16px;
  --space-2:24px;
  --space-3:40px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:-apple-system,"PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;
  font-size:16.5px;
  line-height:1.8;
  color:var(--text);
  background:var(--bg);
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
button,input{font:inherit;color:inherit}
ul,ol{margin:0;padding:0}
h1,h2,h3,h4,p{margin:0}
[hidden]{display:none!important}
:focus-visible{outline:2px solid var(--lime);outline-offset:2px;border-radius:6px}

/* ---------- 容器 ---------- */
.wrap{max-width:var(--container);margin:0 auto;padding:0 32px;width:100%}

/* ---------- 头部导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(245,246,243,.88);
  backdrop-filter:saturate(140%) blur(10px);
  border-bottom:1px solid var(--line);
  transition:box-shadow .25s ease;
}
.site-header.is-scrolled{box-shadow:0 6px 22px rgba(15,18,22,.08)}
.header-inner{display:flex;align-items:center;justify-content:space-between;gap:var(--space-2);height:72px}
.brand{display:inline-flex;align-items:center;gap:10px;font-weight:700;font-size:17px;letter-spacing:-.01em;color:var(--ink)}
.brand-mark{
  position:relative;width:26px;height:26px;border-radius:8px;
  background:var(--violet);display:inline-block;flex:0 0 auto;
}
.brand-mark::after{
  content:"";position:absolute;right:-4px;bottom:-4px;width:12px;height:12px;
  background:var(--lime);border-radius:4px;
}
.nav-links{display:flex;align-items:center;gap:4px}
.nav-link{
  position:relative;padding:8px 14px;border-radius:var(--radius-sm);
  font-weight:500;font-size:15px;color:#2C323A;
  transition:color .2s ease,background .2s ease;
}
.nav-link:hover{color:var(--violet);background:var(--violet-soft)}
.nav-link.active{color:var(--ink);font-weight:600}
.nav-link.active::after{
  content:"";position:absolute;left:14px;right:14px;bottom:-1px;height:2px;
  background:var(--lime);border-radius:2px;
}
.header-actions{display:flex;align-items:center;gap:12px}
.menu-toggle{
  display:none;width:44px;height:44px;border:1px solid var(--line);border-radius:12px;
  background:var(--white);cursor:pointer;align-items:center;justify-content:center;
  flex-direction:column;gap:5px;transition:border-color .2s ease,background .2s ease;
}
.menu-toggle:hover{border-color:var(--violet-line);background:var(--violet-soft)}
.menu-toggle span{display:block;width:18px;height:2px;border-radius:2px;background:var(--ink);transition:transform .2s ease,opacity .2s ease}
.menu-toggle.is-open span:nth-child(1){transform:translateY(7px) rotate(45deg)}
.menu-toggle.is-open span:nth-child(2){opacity:0}
.menu-toggle.is-open span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}
.mobile-panel{
  border-bottom:1px solid var(--line);background:var(--white);
  box-shadow:0 12px 26px rgba(15,18,22,.08);
  animation:panelIn .2s ease;
}
@keyframes panelIn{from{opacity:0;transform:translateY(-6px)}to{opacity:1;transform:translateY(0)}}
.mobile-panel .wrap{padding-top:16px;padding-bottom:20px;display:grid;gap:8px}
.mobile-link{
  padding:13px 14px;border-radius:12px;font-weight:500;color:#2C323A;
  border:1px solid var(--line);background:#FCFCFA;
}
.mobile-link.active{border-color:var(--violet-line);background:var(--violet-soft);color:var(--violet);font-weight:600}
.mobile-cta{margin-top:6px;width:100%}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:14px 26px;border-radius:12px;font-size:15px;font-weight:600;
  border:1px solid transparent;cursor:pointer;
  transition:transform .2s ease,box-shadow .2s ease,background .2s ease,color .2s ease,border-color .2s ease;
}
.btn-primary{background:var(--violet);color:#fff}
.btn-primary:hover{background:var(--violet-hover);transform:translateY(-2px);box-shadow:0 10px 24px rgba(108,76,241,.28)}
.btn-primary:active{transform:translateY(0);box-shadow:0 4px 12px rgba(108,76,241,.22)}
.btn-ghost{background:transparent;border-color:var(--line);color:var(--ink)}
.btn-ghost:hover{background:var(--violet-soft);border-color:var(--violet-line);color:var(--violet);transform:translateY(-2px)}
.btn-ghost:active{transform:translateY(0)}
.btn-sm{padding:11px 20px;font-size:14px}

/* ---------- 标题带 ---------- */
.page-hero{
  position:relative;overflow:hidden;background:var(--white);
  border-bottom:1px solid var(--line);padding:52px 0 60px;
}
.page-hero::before{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:
    linear-gradient(to right,rgba(15,18,22,.05) 1px,transparent 1px),
    linear-gradient(to bottom,rgba(15,18,22,.05) 1px,transparent 1px);
  background-size:64px 64px;
}
.page-hero::after{
  content:"";position:absolute;left:0;right:0;bottom:0;height:4px;
  background:linear-gradient(90deg,var(--violet) 0%,var(--violet) 34%,var(--lime) 34%,var(--lime) 48%,transparent 48%);
  opacity:.9;
}
.page-hero .wrap{position:relative;z-index:2}
.ghost-letter{
  position:absolute;right:18px;bottom:-38px;z-index:1;pointer-events:none;user-select:none;
  font-size:190px;line-height:1;font-weight:800;letter-spacing:-.04em;
  color:transparent;-webkit-text-stroke:1px rgba(108,76,241,.16);
}
.breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13.5px;color:var(--muted);list-style:none;margin-bottom:20px}
.breadcrumb li{display:inline-flex;align-items:center;gap:8px}
.breadcrumb li+li::before{content:"/";color:#B9BFB7}
.breadcrumb a{color:var(--muted);transition:color .2s ease}
.breadcrumb a:hover{color:var(--violet)}
.breadcrumb [aria-current="page"]{color:var(--ink);font-weight:600}
.badge{
  display:inline-flex;align-items:center;gap:6px;padding:5px 12px;border-radius:var(--radius-pill);
  font-size:13px;font-weight:600;background:var(--violet-soft);color:var(--violet);
}
.badge-amber{background:var(--amber-soft);color:#8A5B00}
.badge-line{background:transparent;border:1px solid var(--line);color:var(--muted);font-weight:500}
.page-title{
  font-size:clamp(30px,4vw,46px);font-weight:800;letter-spacing:-.02em;line-height:1.24;
  color:var(--ink);margin:16px 0 18px;max-width:880px;
}
.page-title em{font-style:normal;box-shadow:inset 0 -10px 0 rgba(200,241,78,.55)}
.page-lead{font-size:17px;line-height:1.9;color:var(--muted);max-width:820px}
.hero-meta{display:flex;flex-wrap:wrap;gap:10px;margin-top:26px}
.hero-meta span{
  display:inline-flex;align-items:center;gap:6px;padding:7px 14px;border-radius:var(--radius-pill);
  background:#FBFBF8;border:1px solid var(--line);font-size:13.5px;color:var(--muted);
}
.stat-num{font-variant-numeric:tabular-nums}

/* ---------- 板块 ---------- */
.section{padding:96px 0}
.section-tight{padding:72px 0}
.section-head{max-width:760px;margin-bottom:var(--space-3)}
.kicker{
  display:inline-flex;align-items:center;gap:8px;font-size:13.5px;font-weight:700;
  color:var(--violet);letter-spacing:.02em;margin-bottom:12px;
}
.kicker::before{content:"";width:18px;height:3px;border-radius:3px;background:var(--lime)}
.h2{font-size:clamp(24px,2.8vw,36px);font-weight:700;letter-spacing:-.01em;color:var(--ink);line-height:1.3}
.h3{font-size:20px;font-weight:600;color:var(--ink);line-height:1.45}
.sub{color:var(--muted);margin-top:12px;font-size:16.5px}
.prose p{color:#333B44;margin-bottom:1.1em}
.prose p:last-child{margin-bottom:0}
.prose strong{color:var(--ink);font-weight:600}

/* ---------- 图文分栏 ---------- */
.split{display:grid;grid-template-columns:1.02fr .98fr;gap:48px;align-items:center}
.split.reverse .split-media{order:2}
.split.reverse .split-text{order:1}
.media-frame{
  position:relative;border-radius:var(--radius-lg);overflow:hidden;
  border:1px solid var(--line);background:var(--white);box-shadow:var(--shadow-1);
}
.media-frame img{width:100%;aspect-ratio:4/3;object-fit:cover;transition:transform .25s ease}
.media-frame:hover img{transform:scale(1.03)}
.media-frame::after{
  content:"";position:absolute;inset:0;border-radius:var(--radius-lg);
  box-shadow:inset 0 0 0 1px rgba(255,255,255,.35);pointer-events:none;
}
.media-offset{position:relative}
.media-offset::before{
  content:"";position:absolute;left:-14px;top:20px;width:70px;height:70px;border-radius:16px;
  background:var(--violet);opacity:.14;z-index:0;
}
.media-offset::after{
  content:"";position:absolute;right:-16px;bottom:-16px;width:120px;height:120px;border-radius:50%;
  background:radial-gradient(circle,rgba(200,241,78,.85) 2px,transparent 2px);
  background-size:14px 14px;z-index:0;
}
.media-offset .media-frame{position:relative;z-index:2}
.tick-list{list-style:none;display:grid;gap:14px;margin-top:26px}
.tick-list li{display:flex;gap:12px;align-items:flex-start;font-size:16px;color:#333B44}
.tick-list li::before{
  content:"";flex:0 0 auto;width:16px;height:16px;margin-top:9px;border-radius:50%;
  background:var(--violet-soft);border:2px solid var(--violet);
}

/* ---------- 要点清单 ---------- */
.check-panel{
  background:var(--white);border:1px solid var(--line);border-radius:var(--radius-lg);
  padding:40px;box-shadow:var(--shadow-1);
}
.check-list{list-style:none;counter-reset:item;display:grid;gap:0}
.check-list li{
  counter-increment:item;display:grid;grid-template-columns:44px 1fr;gap:18px;
  padding:22px 0;border-bottom:1px solid var(--line);
}
.check-list li:last-child{border-bottom:none;padding-bottom:0}
.check-list li:first-child{padding-top:0}
.check-list li::before{
  content:counter(item,decimal-leading-zero);
  font-size:15px;font-weight:800;font-variant-numeric:tabular-nums;color:var(--violet);
  background:var(--violet-soft);border-radius:10px;height:36px;
  display:flex;align-items:center;justify-content:center;
}
.check-list h3{font-size:17px;font-weight:600;color:var(--ink);margin-bottom:6px}
.check-list p{color:var(--muted);font-size:15.5px;line-height:1.8}

/* ---------- 数据条 ---------- */
.stat-row{
  display:grid;grid-template-columns:repeat(4,1fr);gap:var(--space-2);
  background:var(--ink);border-radius:var(--radius-lg);padding:36px 32px;color:#fff;
  position:relative;overflow:hidden;
}
.stat-row::after{
  content:"";position:absolute;right:-40px;top:-40px;width:180px;height:180px;border-radius:50%;
  background:radial-gradient(circle,rgba(108,76,241,.55) 0%,transparent 70%);
}
.stat-item{position:relative;z-index:2}
.stat-value{
  font-size:clamp(26px,3vw,36px);font-weight:800;letter-spacing:-.02em;
  font-variant-numeric:tabular-nums;line-height:1.2;
}
.stat-value .unit{font-size:.55em;font-weight:600;color:var(--lime);margin-left:4px}
.stat-label{font-size:14px;color:#A9B1AE;margin-top:8px}

/* ---------- 卡片 ---------- */
.card-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:var(--space-2)}
.card{
  display:flex;flex-direction:column;background:var(--white);
  border:1px solid var(--line);border-radius:var(--radius-card);
  box-shadow:var(--shadow-1);overflow:hidden;
  transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.card:hover{transform:translateY(-3px);box-shadow:var(--shadow-2);border-color:#D5DAD2}
.card-media{overflow:hidden;aspect-ratio:16/9}
.card-media img{width:100%;height:100%;object-fit:cover;transition:transform .25s ease}
.card:hover .card-media img{transform:scale(1.03)}
.card-body{padding:24px;display:flex;flex-direction:column;gap:12px;flex:1}
.card-title{font-size:19px;font-weight:600;color:var(--ink);line-height:1.45;transition:color .2s ease}
.card:hover .card-title{color:var(--violet)}
.card-text{font-size:15px;color:var(--muted);line-height:1.8}
.card-foot{
  display:flex;align-items:center;justify-content:space-between;gap:12px;
  margin-top:auto;padding-top:16px;border-top:1px solid var(--line);
  font-size:13.5px;color:var(--muted);
}
.arrow-link{display:inline-flex;align-items:center;gap:6px;font-weight:600;color:var(--violet);font-size:14px}
.arrow-link::after{content:"→";transition:transform .2s ease}
.card:hover .arrow-link::after{transform:translateX(4px)}

/* ---------- FAQ ---------- */
.faq-list{display:grid;gap:12px;max-width:900px}
.faq-item{
  background:var(--white);border:1px solid var(--line);border-radius:14px;
  overflow:hidden;transition:border-color .2s ease,box-shadow .2s ease;
}
.faq-item:hover{border-color:#D5DAD2}
.faq-item[open]{box-shadow:var(--shadow-1)}
.faq-item summary{
  list-style:none;cursor:pointer;position:relative;
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:19px 22px;font-size:17px;font-weight:600;color:var(--ink);
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::after{
  content:"";flex:0 0 auto;width:9px;height:9px;
  border-right:2px solid var(--muted);border-bottom:2px solid var(--muted);
  transform:rotate(45deg);transition:transform .2s ease;margin-right:4px;
}
.faq-item[open] summary::after{transform:rotate(-135deg)}
.faq-item[open] summary::before{
  content:"";position:absolute;left:0;top:14px;bottom:14px;width:3px;
  border-radius:0 3px 3px 0;background:var(--lime);
}
.faq-body{padding:0 22px 22px;color:var(--muted);font-size:15.5px;line-height:1.9}

/* ---------- 深色 CTA ---------- */
.cta-band{background:var(--ink);color:#fff;padding:72px 0;position:relative;overflow:hidden}
.cta-band::before{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:
    linear-gradient(to right,rgba(255,255,255,.045) 1px,transparent 1px),
    linear-gradient(to bottom,rgba(255,255,255,.045) 1px,transparent 1px);
  background-size:56px 56px;
}
.cta-inner{position:relative;z-index:2;display:grid;grid-template-columns:1.1fr .9fr;gap:48px;align-items:center}
.cta-tag{
  display:inline-flex;align-items:center;gap:8px;font-size:13.5px;font-weight:700;
  color:var(--lime);letter-spacing:.03em;margin-bottom:16px;
}
.cta-tag::before{content:"";width:8px;height:8px;border-radius:50%;background:var(--lime)}
.cta-title{font-size:clamp(24px,2.8vw,34px);font-weight:700;line-height:1.32;letter-spacing:-.01em}
.cta-text{color:#B4BCB8;margin-top:14px;font-size:16px;line-height:1.85;max-width:520px}
.form-row{display:flex;gap:12px;flex-wrap:wrap}
.input{
  flex:1 1 220px;height:46px;padding:0 16px;border-radius:var(--radius-sm);
  border:1px solid #2A3038;background:#171B21;color:#fff;font-size:15px;
  transition:border-color .2s ease,box-shadow .2s ease;
}
.input::placeholder{color:#7C856F;color:#7A828C}
.input:focus{outline:none;border-color:var(--violet);box-shadow:0 0 0 3px rgba(108,76,241,.28)}
.form-note{font-size:13px;color:#8C9490;margin-top:12px}
.form-msg{font-size:13.5px;color:var(--lime);margin-top:10px;min-height:20px}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--ink);color:#C6CCC8;padding:64px 0 28px;border-top:1px solid #1C222A}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:40px}
.footer-brand{display:flex;align-items:center;gap:10px;color:#fff;font-weight:700;font-size:17px;margin-bottom:16px}
.footer-about{font-size:14.5px;line-height:1.85;color:#98A09C;max-width:320px}
.footer-title{font-size:15px;font-weight:600;color:#fff;margin-bottom:16px}
.footer-list{display:grid;gap:10px}
.footer-link{font-size:14.5px;color:#B4BCB8;transition:color .2s ease}
.footer-link:hover{color:var(--lime)}
.footer-text{font-size:14.5px;color:#98A09C}
.footer-bottom{
  margin-top:44px;padding-top:20px;border-top:1px solid #1C222A;
  display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:13.5px;color:#8A928E;
}

/* ---------- 响应式 ---------- */
@media (max-width:1024px){
  .section{padding:72px 0}
  .split{grid-template-columns:1fr;gap:32px}
  .split.reverse .split-media{order:0}
  .split.reverse .split-text{order:0}
  .card-grid{grid-template-columns:repeat(2,1fr)}
  .stat-row{grid-template-columns:repeat(2,1fr);gap:28px}
  .cta-inner{grid-template-columns:1fr;gap:32px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
  .check-panel{padding:28px}
}
@media (max-width:900px){
  .nav-links{display:none}
  .menu-toggle{display:inline-flex}
}
@media (max-width:640px){
  .wrap{padding:0 20px}
  .header-inner{height:64px}
  .brand{font-size:16px}
  .section{padding:56px 0}
  .page-hero{padding:36px 0 44px}
  .ghost-letter{font-size:120px;bottom:-24px;right:6px}
  .card-grid{grid-template-columns:1fr}
  .stat-row{padding:26px 22px}
  .cta-band{padding:48px 0}
  .footer-grid{grid-template-columns:1fr}
  .btn{width:100%}
  .btn-inline{width:auto}
  .check-list li{grid-template-columns:36px 1fr;gap:14px}
  .check-list li::before{height:32px;font-size:14px}
}

/* roulang page: category2 */
:root{
    --brand:#6C4CF1;
    --brand-soft:#EFEBFE;
    --brand-hover:#7A5CF5;
    --lime:#C8F14E;
    --amber:#FFB63D;
    --amber-soft:#FFF3DF;
    --ink:#0F1216;
    --bg:#F5F6F3;
    --card:#FFFFFF;
    --text:#1A1F26;
    --muted:#5C6673;
    --line:#E3E6E0;
    --r-sm:10px;
    --r:16px;
    --r-lg:20px;
    --sh-1:0 2px 10px rgba(15,18,22,.05);
    --sh-2:0 10px 28px rgba(15,18,22,.10);
    --wrap:1200px;
    --fh:-apple-system,"PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;
  }

  *,*::before,*::after{box-sizing:border-box;}
  html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
  body{
    margin:0;
    font-family:var(--fh);
    font-size:16.5px;
    line-height:1.8;
    color:var(--text);
    background:var(--bg);
    -webkit-font-smoothing:antialiased;
    overflow-x:hidden;
  }
  img{max-width:100%;display:block;height:auto;}
  a{color:inherit;text-decoration:none;transition:color .18s ease,background-color .18s ease,border-color .18s ease;}
  a:focus-visible,button:focus-visible,input:focus-visible,summary:focus-visible{
    outline:2px solid var(--lime);
    outline-offset:2px;
    border-radius:6px;
  }
  button{font-family:inherit;cursor:pointer;border:0;background:none;}
  h1,h2,h3,h4{margin:0;font-weight:700;letter-spacing:-0.01em;}
  p{margin:0;}
  ul,ol{margin:0;padding:0;list-style:none;}
  .tnum{font-variant-numeric:tabular-nums;}

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

  /* ---------- 按钮 ---------- */
  .btn{
    display:inline-flex;
    align-items:center;
    justify-content:center;
    gap:8px;
    padding:14px 26px;
    border-radius:12px;
    font-size:15px;
    font-weight:600;
    line-height:1;
    white-space:nowrap;
    transition:transform .18s ease,box-shadow .18s ease,background-color .18s ease,color .18s ease,border-color .18s ease;
  }
  .btn-primary{
    background:var(--brand);
    color:#fff;
    box-shadow:0 4px 14px rgba(108,76,241,.24);
  }
  .btn-primary:hover{
    background:var(--brand-hover);
    transform:translateY(-2px);
    box-shadow:0 10px 24px rgba(108,76,241,.30);
  }
  .btn-primary:active{transform:translateY(0);box-shadow:0 3px 10px rgba(108,76,241,.22);}
  .btn-ghost{
    background:transparent;
    color:var(--text);
    border:1px solid var(--line);
  }
  .btn-ghost:hover{
    background:var(--brand-soft);
    border-color:#D8CFFC;
    color:var(--brand);
    transform:translateY(-2px);
  }
  .btn-lime{
    background:var(--lime);
    color:#14180F;
    font-weight:700;
  }
  .btn-lime:hover{background:#D4F86A;transform:translateY(-2px);box-shadow:0 8px 20px rgba(200,241,78,.28);}

  /* ---------- 头部导航 ---------- */
  .site-header{
    position:sticky;
    top:0;
    z-index:60;
    background:rgba(245,246,243,.9);
    backdrop-filter:saturate(160%) blur(10px);
    border-bottom:1px solid var(--line);
    transition:box-shadow .22s ease;
  }
  .site-header.is-scrolled{box-shadow:0 8px 24px rgba(15,18,22,.07);}
  .header-inner{
    display:flex;
    align-items:center;
    justify-content:space-between;
    gap:20px;
    height:72px;
  }
  .brand{display:inline-flex;align-items:center;gap:10px;flex-shrink:0;}
  .brand-mark{
    position:relative;
    width:26px;height:26px;
    border-radius:8px;
    background:var(--brand);
    display:inline-block;
    flex-shrink:0;
  }
  .brand-mark::after{
    content:"";
    position:absolute;
    right:-4px;bottom:-4px;
    width:12px;height:12px;
    border-radius:4px;
    background:var(--lime);
  }
  .brand-text{
    font-size:19px;
    font-weight:800;
    letter-spacing:-0.01em;
    color:var(--ink);
  }
  .nav-links{display:flex;align-items:center;gap:2px;}
  .nav-link{
    position:relative;
    padding:10px 14px;
    font-size:15px;
    font-weight:500;
    color:var(--muted);
    border-radius:8px;
  }
  .nav-link:hover{color:var(--ink);background:rgba(15,18,22,.04);}
  .nav-link.active{color:var(--ink);font-weight:600;}
  .nav-link.active::after{
    content:"";
    position:absolute;
    left:14px;right:14px;bottom:2px;
    height:2px;
    border-radius:2px;
    background:var(--lime);
  }
  .header-actions{display:flex;align-items:center;gap:10px;}
  .nav-cta{padding:11px 20px;font-size:14.5px;}
  .menu-btn{
    display:none;
    width:42px;height:42px;
    border-radius:10px;
    border:1px solid var(--line);
    background:#fff;
    align-items:center;
    justify-content:center;
    flex-direction:column;
    gap:4px;
  }
  .menu-btn span{display:block;width:17px;height:2px;border-radius:2px;background:var(--ink);transition:transform .2s ease,opacity .2s ease;}
  .menu-btn[aria-expanded="true"] span:nth-child(1){transform:translateY(6px) rotate(45deg);}
  .menu-btn[aria-expanded="true"] span:nth-child(2){opacity:0;}
  .menu-btn[aria-expanded="true"] span:nth-child(3){transform:translateY(-6px) rotate(-45deg);}

  .mobile-panel{
    display:none;
    border-top:1px solid var(--line);
    background:#fff;
    padding:14px 20px 22px;
  }
  .mobile-panel.is-open{display:block;}
  .mobile-panel .nav-link{
    display:block;
    padding:14px 12px;
    font-size:16px;
    border-bottom:1px solid var(--line);
    border-radius:0;
  }
  .mobile-panel .nav-link:last-of-type{margin-bottom:16px;}
  .mobile-panel .btn{width:100%;}

  @media (max-width:1023px){
    .nav-links{display:none;}
    .menu-btn{display:inline-flex;}
  }
  @media (max-width:520px){
    .brand-text{font-size:17px;}
    .nav-cta{padding:9px 14px;font-size:13.5px;}
  }

  /* ---------- 页面标题带 ---------- */
  .page-hero{
    position:relative;
    overflow:hidden;
    background:var(--bg);
    border-bottom:1px solid var(--line);
    padding:52px 0 56px;
  }
  .page-hero::before{
    content:"";
    position:absolute;
    inset:0;
    background-image:
      linear-gradient(to right,rgba(15,18,22,.05) 1px,transparent 1px),
      linear-gradient(to bottom,rgba(15,18,22,.05) 1px,transparent 1px);
    background-size:52px 52px;
    mask-image:linear-gradient(to bottom,rgba(0,0,0,.9),rgba(0,0,0,.15) 78%,transparent);
    -webkit-mask-image:linear-gradient(to bottom,rgba(0,0,0,.9),rgba(0,0,0,.15) 78%,transparent);
    pointer-events:none;
  }
  .page-hero::after{
    content:"?";
    position:absolute;
    right:24px;
    top:-30px;
    font-size:220px;
    font-weight:800;
    line-height:1;
    color:transparent;
    -webkit-text-stroke:2px rgba(108,76,241,.12);
    pointer-events:none;
    user-select:none;
  }
  .page-hero .wrap{position:relative;z-index:1;}
  @media (max-width:768px){
    .page-hero{padding:36px 0 40px;}
    .page-hero::after{font-size:140px;right:0;top:-14px;}
  }

  .crumbs{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13.5px;color:var(--muted);margin-bottom:22px;}
  .crumbs li{display:inline-flex;align-items:center;gap:8px;}
  .crumbs li+li::before{content:"/";color:#B7BDB4;}
  .crumbs a:hover{color:var(--brand);}
  .crumbs .current{color:var(--ink);font-weight:600;}

  .hero-badge{
    display:inline-flex;
    align-items:center;
    gap:8px;
    padding:6px 14px;
    border-radius:999px;
    background:var(--brand-soft);
    color:var(--brand);
    font-size:13.5px;
    font-weight:600;
    margin-bottom:18px;
  }
  .hero-badge i{width:7px;height:7px;border-radius:50%;background:var(--lime);display:inline-block;}

  h1.page-title{
    font-size:clamp(30px,4.4vw,52px);
    font-weight:800;
    line-height:1.18;
    letter-spacing:-0.02em;
    color:var(--ink);
    max-width:16em;
  }
  .page-lead{
    margin-top:18px;
    max-width:44em;
    font-size:17px;
    line-height:1.85;
    color:var(--muted);
  }
  .hero-meta{
    display:flex;
    flex-wrap:wrap;
    gap:10px 22px;
    margin-top:26px;
    font-size:13.5px;
    color:var(--muted);
  }
  .hero-meta span{display:inline-flex;align-items:center;gap:7px;}
  .hero-meta b{color:var(--ink);font-weight:700;font-variant-numeric:tabular-nums;}

  /* ---------- 板块通用 ---------- */
  .section{padding:56px 0;}
  @media (min-width:768px){ .section{padding:76px 0;} }
  @media (min-width:1024px){ .section{padding:96px 0;} }
  .section-head{max-width:44em;margin-bottom:36px;}
  .eyebrow{
    display:inline-block;
    font-size:13px;
    font-weight:700;
    letter-spacing:.08em;
    color:var(--brand);
    margin-bottom:12px;
  }
  h2.section-title{
    font-size:clamp(24px,2.8vw,36px);
    font-weight:700;
    line-height:1.28;
    letter-spacing:-0.02em;
    color:var(--ink);
  }
  .section-sub{margin-top:12px;font-size:16.5px;line-height:1.85;color:var(--muted);}

  /* ---------- 引言长文 ---------- */
  .intro-grid{display:grid;grid-template-columns:1fr;gap:32px;}
  @media (min-width:1024px){
    .intro-grid{grid-template-columns:minmax(0,1fr) 320px;gap:56px;align-items:start;}
  }
  .prose-block p{font-size:17px;line-height:1.95;color:#2A3038;margin-bottom:1.2em;}
  .prose-block p:last-child{margin-bottom:0;}
  .prose-block strong{color:var(--ink);font-weight:700;}
  .prose-block .hl{
    background:linear-gradient(transparent 62%,rgba(200,241,78,.65) 62%);
    padding:0 2px;
    font-weight:600;
  }

  .side-card{
    background:var(--card);
    border:1px solid var(--line);
    border-radius:var(--r);
    box-shadow:var(--sh-1);
    padding:24px;
  }
  .side-card h3{font-size:17px;font-weight:700;color:var(--ink);margin-bottom:16px;}
  .side-list li{
    display:flex;
    gap:12px;
    padding:12px 0;
    border-top:1px solid var(--line);
    font-size:14.5px;
    color:var(--muted);
    line-height:1.7;
  }
  .side-list li:first-child{border-top:0;padding-top:0;}
  .side-list li b{color:var(--ink);font-weight:700;font-variant-numeric:tabular-nums;flex-shrink:0;}

  /* ---------- 图文交替模块 ---------- */
  .split{
    display:grid;
    grid-template-columns:1fr;
    gap:28px;
    align-items:center;
  }
  @media (min-width:900px){
    .split{grid-template-columns:1fr 1fr;gap:56px;}
    .split.reverse .split-media{order:2;}
  }
  .split-media{
    position:relative;
    border-radius:var(--r-lg);
    overflow:hidden;
    border:1px solid var(--line);
    box-shadow:var(--sh-1);
    background:#fff;
  }
  .split-media img{width:100%;aspect-ratio:4/3;object-fit:cover;transition:transform .3s ease;}
  .split-media:hover img{transform:scale(1.03);}
  .split-media::after{
    content:"";
    position:absolute;
    left:-12px;bottom:-12px;
    width:76px;height:76px;
    border:2px solid var(--brand);
    border-radius:14px;
    z-index:-1;
  }
  .split-body h3{
    font-size:clamp(20px,2.2vw,26px);
    font-weight:700;
    line-height:1.35;
    color:var(--ink);
    margin-bottom:12px;
  }
  .split-body p{font-size:16.5px;line-height:1.9;color:var(--muted);margin-bottom:14px;}
  .split-body p:last-of-type{margin-bottom:0;}
  .tag-line{display:flex;flex-wrap:wrap;gap:8px;margin-top:20px;}
  .tag{
    display:inline-flex;
    align-items:center;
    padding:5px 12px;
    border-radius:999px;
    background:var(--brand-soft);
    color:var(--brand);
    font-size:13px;
    font-weight:600;
  }
  .tag.amber{background:var(--amber-soft);color:#9A6412;}

  /* ---------- 要点清单 ---------- */
  .point-list{display:grid;grid-template-columns:1fr;gap:16px;}
  @media (min-width:700px){ .point-list{grid-template-columns:1fr 1fr;} }
  .point-item{
    position:relative;
    background:var(--card);
    border:1px solid var(--line);
    border-radius:var(--r);
    padding:22px 24px 22px 56px;
    box-shadow:var(--sh-1);
    transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
  }
  .point-item:hover{transform:translateY(-3px);box-shadow:var(--sh-2);border-color:#D8CFFC;}
  .point-item::before{
    content:"";
    position:absolute;
    left:24px;top:27px;
    width:16px;height:16px;
    border-radius:5px;
    background:var(--lime);
  }
  .point-item h3{font-size:16.5px;font-weight:700;color:var(--ink);margin-bottom:6px;}
  .point-item p{font-size:14.5px;line-height:1.8;color:var(--muted);}

  /* ---------- 数据条 ---------- */
  .stat-strip{
    background:var(--card);
    border:1px solid var(--line);
    border-radius:var(--r-lg);
    box-shadow:var(--sh-1);
    padding:32px 24px;
    display:grid;
    grid-template-columns:repeat(2,1fr);
    gap:28px 16px;
  }
  @media (min-width:900px){ .stat-strip{grid-template-columns:repeat(4,1fr);padding:40px 40px;} }
  .stat-item{text-align:left;}
  .stat-num{
    font-size:clamp(28px,3.4vw,40px);
    font-weight:800;
    line-height:1.1;
    color:var(--ink);
    font-variant-numeric:tabular-nums;
    letter-spacing:-0.02em;
  }
  .stat-num em{font-style:normal;font-size:.5em;color:var(--brand);margin-left:3px;font-weight:700;}
  .stat-label{margin-top:8px;font-size:14px;color:var(--muted);line-height:1.7;}
  .stat-item+.stat-item{border-left:0;}
  @media (min-width:900px){
    .stat-item+.stat-item{border-left:1px solid var(--line);padding-left:24px;}
  }

  /* ---------- 卡片网格 ---------- */
  .card-grid{display:grid;grid-template-columns:1fr;gap:24px;}
  @media (min-width:640px){ .card-grid{grid-template-columns:repeat(2,1fr);} }
  @media (min-width:1024px){ .card-grid{grid-template-columns:repeat(3,1fr);} }
  .card{
    display:flex;
    flex-direction:column;
    background:var(--card);
    border:1px solid var(--line);
    border-radius:var(--r);
    overflow:hidden;
    box-shadow:var(--sh-1);
    transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
  }
  .card:hover{transform:translateY(-3px);box-shadow:var(--sh-2);border-color:#D8CFFC;}
  .card-thumb{position:relative;overflow:hidden;background:#EDEEE9;}
  .card-thumb img{width:100%;aspect-ratio:16/9;object-fit:cover;transition:transform .25s ease;}
  .card:hover .card-thumb img{transform:scale(1.03);}
  .card-badge{
    position:absolute;
    left:14px;top:14px;
    padding:5px 12px;
    border-radius:999px;
    background:rgba(255,255,255,.94);
    color:var(--brand);
    font-size:12.5px;
    font-weight:700;
  }
  .card-body{padding:22px 24px 24px;display:flex;flex-direction:column;flex:1;}
  .card-body h3{font-size:18px;font-weight:700;line-height:1.45;color:var(--ink);margin-bottom:10px;transition:color .2s ease;}
  .card:hover .card-body h3{color:var(--brand);}
  .card-body p{font-size:14.5px;line-height:1.8;color:var(--muted);flex:1;}
  .card-foot{
    display:flex;
    align-items:center;
    justify-content:space-between;
    gap:12px;
    margin-top:20px;
    padding-top:16px;
    border-top:1px solid var(--line);
    font-size:13px;
    color:var(--muted);
  }
  .time-chip{
    display:inline-flex;
    align-items:center;
    padding:4px 10px;
    border-radius:999px;
    background:var(--amber-soft);
    color:#9A6412;
    font-size:12.5px;
    font-weight:600;
    font-variant-numeric:tabular-nums;
  }
  .arrow-link{font-weight:600;color:var(--brand);}
  .arrow-link::after{content:" →";transition:margin .2s ease;}
  .card:hover .arrow-link::after{margin-left:3px;}

  /* ---------- FAQ ---------- */
  .faq-wrap{
    background:var(--card);
    border:1px solid var(--line);
    border-radius:var(--r-lg);
    box-shadow:var(--sh-1);
    padding:8px 24px;
  }
  @media (min-width:768px){ .faq-wrap{padding:8px 40px;} }
  .faq-item{border-bottom:1px solid var(--line);}
  .faq-item:last-child{border-bottom:0;}
  .faq-item summary{
    position:relative;
    display:flex;
    align-items:flex-start;
    justify-content:space-between;
    gap:18px;
    padding:22px 0 22px 18px;
    font-size:17px;
    font-weight:600;
    line-height:1.65;
    color:var(--ink);
    cursor:pointer;
    list-style:none;
    transition:color .18s ease;
  }
  .faq-item summary::-webkit-details-marker{display:none;}
  .faq-item summary:hover{color:var(--brand);}
  .faq-item summary::before{
    content:"";
    position:absolute;
    left:0;
    top:24px;
    width:3px;
    height:0;
    border-radius:2px;
    background:var(--lime);
    transition:height .22s ease;
  }
  .faq-item[open] summary::before{height:24px;}
  .faq-item summary::after{
    content:"";
    flex-shrink:0;
    width:9px;height:9px;
    margin-top:8px;
    border-right:2px solid var(--muted);
    border-bottom:2px solid var(--muted);
    transform:rotate(45deg);
    transition:transform .22s ease,border-color .22s ease;
  }
  .faq-item[open] summary::after{transform:rotate(225deg);border-color:var(--brand);}
  .faq-answer{padding:0 0 24px 18px;font-size:15.5px;line-height:1.9;color:var(--muted);}
  .faq-answer p+p{margin-top:12px;}

  /* ---------- 深色 CTA ---------- */
  .cta-dark{
    background:var(--ink);
    color:#fff;
    padding:48px 0;
    position:relative;
    overflow:hidden;
  }
  @media (min-width:768px){ .cta-dark{padding:72px 0;} }
  .cta-dark::before{
    content:"";
    position:absolute;
    right:-60px;top:-60px;
    width:260px;height:260px;
    border-radius:50%;
    border:1px dashed rgba(200,241,78,.22);
  }
  .cta-inner{
    position:relative;
    z-index:1;
    display:grid;
    grid-template-columns:1fr;
    gap:32px;
    align-items:center;
  }
  @media (min-width:1024px){ .cta-inner{grid-template-columns:1.1fr .9fr;gap:64px;} }
  .cta-tag{
    display:inline-flex;
    align-items:center;
    gap:8px;
    font-size:13px;
    font-weight:700;
    letter-spacing:.06em;
    color:var(--lime);
    margin-bottom:14px;
  }
  .cta-tag i{width:7px;height:7px;border-radius:50%;background:var(--lime);display:inline-block;}
  .cta-dark h2{
    font-size:clamp(24px,2.8vw,36px);
    font-weight:700;
    line-height:1.3;
    letter-spacing:-0.02em;
    color:#fff;
  }
  .cta-dark p.cta-desc{margin-top:14px;font-size:16px;line-height:1.85;color:rgba(255,255,255,.72);max-width:34em;}
  .cta-form{display:flex;flex-direction:column;gap:12px;}
  .cta-form-row{display:flex;flex-direction:column;gap:12px;}
  @media (min-width:560px){ .cta-form-row{flex-direction:row;} }
  .cta-input{
    flex:1;
    height:46px;
    padding:0 16px;
    border-radius:var(--r-sm);
    border:1px solid rgba(255,255,255,.18);
    background:rgba(255,255,255,.06);
    color:#fff;
    font-size:15px;
    font-family:inherit;
    transition:border-color .18s ease,background-color .18s ease;
  }
  .cta-input::placeholder{color:rgba(255,255,255,.45);}
  .cta-input:focus{outline:none;border-color:var(--lime);background:rgba(255,255,255,.1);}
  .cta-note{font-size:13px;color:rgba(255,255,255,.5);line-height:1.7;}
  .cta-links{display:flex;flex-wrap:wrap;gap:14px;margin-top:22px;}
  .cta-links a{
    font-size:14.5px;
    font-weight:600;
    color:rgba(255,255,255,.82);
    border-bottom:1px solid rgba(200,241,78,.4);
    padding-bottom:2px;
  }
  .cta-links a:hover{color:var(--lime);border-color:var(--lime);}

  /* ---------- 页脚 ---------- */
  .site-footer{
    background:var(--ink);
    color:rgba(255,255,255,.7);
    padding:56px 0 28px;
    font-size:14.5px;
  }
  @media (min-width:768px){ .site-footer{padding:72px 0 32px;} }
  .footer-grid{
    display:grid;
    grid-template-columns:1fr;
    gap:36px;
    padding-bottom:36px;
    border-bottom:1px solid rgba(255,255,255,.1);
  }
  @media (min-width:640px){ .footer-grid{grid-template-columns:1fr 1fr;} }
  @media (min-width:1024px){ .footer-grid{grid-template-columns:1.4fr 1fr 1fr 1fr;gap:40px;} }
  .footer-brand{
    display:inline-flex;
    align-items:center;
    gap:10px;
    font-size:18px;
    font-weight:800;
    color:#fff;
    margin-bottom:14px;
  }
  .footer-brand .brand-mark{width:22px;height:22px;border-radius:7px;}
  .footer-brand .brand-mark::after{width:10px;height:10px;}
  .footer-about{line-height:1.85;color:rgba(255,255,255,.6);max-width:26em;}
  .footer-title{font-size:15px;font-weight:700;color:#fff;margin-bottom:16px;}
  .footer-list{display:flex;flex-direction:column;gap:11px;}
  .footer-link,.footer-text{color:rgba(255,255,255,.66);font-size:14.5px;line-height:1.7;}
  .footer-link:hover{color:var(--lime);}
  .footer-bottom{
    display:flex;
    flex-wrap:wrap;
    align-items:center;
    justify-content:space-between;
    gap:10px;
    padding-top:22px;
    font-size:13.5px;
    color:rgba(255,255,255,.45);
  }

  /* ---------- 动画 ---------- */
  .reveal{opacity:0;transform:translateY(16px);transition:opacity .5s ease,transform .5s ease;}
  .reveal.is-visible{opacity:1;transform:none;}
  @media (prefers-reduced-motion:reduce){
    .reveal{opacity:1;transform:none;transition:none;}
    *{scroll-behavior:auto !important;}
  }