/* roulang page: index */
:root{
    --c-ink:#0A1424;
    --c-ink-2:#111E33;
    --c-primary:#1F63E8;
    --c-primary-600:#1750C2;
    --c-primary-050:#EDF3FE;
    --c-neon:#25E6C4;
    --c-accent:#FF7A45;
    --c-text:#0F1B2D;
    --c-text-2:#5B6C87;
    --c-line:#E5EBF5;
    --c-bg:#F6F8FC;
    --r-card:16px;
    --r-big:20px;
    --r-btn:10px;
    --sh-card:0 1px 2px rgba(15,27,45,.04),0 8px 24px rgba(15,27,45,.06);
    --sh-hover:0 12px 32px rgba(31,99,232,.14);
    --font-cn:"PingFang SC","HarmonyOS Sans SC","Hiragino Sans GB","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
  }
  *{box-sizing:border-box}
  html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
  body{
    margin:0;padding:0;
    font-family:var(--font-cn);
    background:var(--c-bg);
    color:var(--c-text);
    font-size:16px;line-height:1.9;
    -webkit-font-smoothing:antialiased;
    overflow-x:hidden;
  }
  img{max-width:100%;display:block;border:0}
  a{color:inherit;text-decoration:none;transition:color .18s ease-out,border-color .18s ease-out,background-color .18s ease-out}
  button{font-family:inherit;cursor:pointer;border:0;background:none}
  input{font-family:inherit}
  ul,ol{margin:0;padding:0;list-style:none}
  h1,h2,h3,h4,p{margin:0}
  .num{font-variant-numeric:tabular-nums}
  :focus-visible{outline:2px solid var(--c-primary);outline-offset:2px;border-radius:6px}

  .container{width:100%;max-width:1200px;margin:0 auto;padding:0 20px}
  @media (min-width:1024px){.container{padding:0 24px}}

  .section{padding:56px 0}
  @media (min-width:1024px){.section{padding:88px 0}}
  .section-line{border-top:1px solid var(--c-line)}

  /* ---------- 按钮 ---------- */
  .btn{
    display:inline-flex;align-items:center;justify-content:center;gap:8px;
    height:44px;padding:0 22px;border-radius:var(--r-btn);
    font-size:15px;font-weight:600;line-height:1;
    transition:all .18s ease-out;white-space:nowrap;
  }
  .btn-sm{height:38px;padding:0 18px;font-size:14px}
  .btn-accent{background:var(--c-accent);color:#fff;box-shadow:0 1px 2px rgba(255,122,69,.25)}
  .btn-accent:hover{filter:brightness(1.08);transform:translateY(-1px);box-shadow:0 6px 16px rgba(255,122,69,.35);color:#fff}
  .btn-accent:active{transform:translateY(0);filter:brightness(.96)}
  .btn-ghost{background:#fff;color:var(--c-primary);border:1px solid var(--c-line)}
  .btn-ghost:hover{border-color:var(--c-primary);background:var(--c-primary-050)}
  .btn-outline{background:transparent;color:var(--c-primary);border:1px solid var(--c-primary)}
  .btn-outline:hover{background:var(--c-primary-050)}
  .btn-block{width:100%}

  .icon-btn{
    width:38px;height:38px;border-radius:10px;display:inline-flex;align-items:center;justify-content:center;
    border:1px solid rgba(255,255,255,.22);color:rgba(255,255,255,.8);transition:all .18s ease-out;
  }
  .icon-btn:hover{border-color:var(--c-neon);color:#fff;box-shadow:0 0 12px rgba(37,230,196,.35)}

  .eyebrow{
    display:inline-flex;align-items:center;gap:8px;
    background:var(--c-primary-050);color:var(--c-primary);
    font-size:13px;font-weight:600;padding:7px 14px;border-radius:999px;
    border:1px solid rgba(31,99,232,.14);
  }
  .eyebrow .dot{width:6px;height:6px;border-radius:50%;background:var(--c-neon);box-shadow:0 0 8px rgba(37,230,196,.8)}

  .badge{
    display:inline-flex;align-items:center;gap:6px;
    font-size:12px;font-weight:600;padding:4px 10px;border-radius:999px;
    background:var(--c-primary-050);color:var(--c-primary);
  }
  .badge-dark{background:rgba(10,20,36,.62);color:#fff;backdrop-filter:blur(4px)}
  .badge-hot{background:var(--c-accent);color:#fff;box-shadow:0 4px 12px rgba(255,122,69,.35)}
  .badge-neon{background:rgba(37,230,196,.14);color:#0E8F7C;border:1px solid rgba(37,230,196,.35)}

  .neon-line{height:2px;width:64px;border-radius:2px;background:linear-gradient(90deg,rgba(37,230,196,.9),rgba(31,99,232,.6))}

  /* ---------- 导航 ---------- */
  .site-header{
    position:sticky;top:0;z-index:60;background:var(--c-ink);
    border-bottom:1px solid rgba(255,255,255,.08);
    transition:background .25s ease-out,box-shadow .25s ease-out,backdrop-filter .25s ease-out;
  }
  .site-header::after{
    content:"";position:absolute;left:0;right:0;bottom:-1px;height:2px;
    background:linear-gradient(90deg,rgba(37,230,196,.75),rgba(31,99,232,.55),rgba(37,230,196,0));
  }
  .site-header.is-scrolled{background:rgba(10,20,36,.92);backdrop-filter:blur(8px);box-shadow:0 10px 30px rgba(5,12,24,.35)}
  .header-inner{display:flex;align-items:center;justify-content:space-between;height:64px;gap:18px}
  @media (max-width:767px){.header-inner{height:56px}}
  .brand{display:flex;align-items:center;gap:10px;min-width:0}
  .brand-mark{font-size:20px;font-weight:800;color:#fff;letter-spacing:-.01em;white-space:nowrap}
  .brand-sep{width:1px;height:18px;background:rgba(255,255,255,.22);flex:none}
  .brand-sub{font-size:14px;color:rgba(255,255,255,.72);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
  @media (max-width:600px){.brand-sub{display:none}}
  .nav-desktop{display:none;align-items:center;gap:28px}
  @media (min-width:1024px){.nav-desktop{display:flex}}
  .nav-link{
    position:relative;font-size:15px;color:rgba(255,255,255,.75);padding:20px 2px;line-height:1;
  }
  .nav-link::after{
    content:"";position:absolute;left:0;right:0;bottom:12px;height:2px;
    background:linear-gradient(90deg,var(--c-neon),var(--c-primary));
    transform:scaleX(0);transform-origin:left;transition:transform .2s ease-out;border-radius:2px;
  }
  .nav-link:hover{color:#fff}
  .nav-link:hover::after{transform:scaleX(1)}
  .nav-link.is-active{color:#fff;transform:translateY(-1px);text-shadow:0 0 12px rgba(37,230,196,.55)}
  .nav-link.is-active::after{transform:scaleX(1)}
  .header-actions{display:flex;align-items:center;gap:12px}
  @media (max-width:767px){.header-actions .icon-btn,.header-actions .btn{display:none}}
  .hamburger{display:inline-flex;flex-direction:column;justify-content:center;gap:5px;width:40px;height:40px;border-radius:10px;border:1px solid rgba(255,255,255,.2);align-items:center}
  @media (min-width:1024px){.hamburger{display:none}}
  .hamburger span{display:block;width:18px;height:2px;background:#fff;border-radius:2px;transition:transform .2s ease-out,opacity .2s ease-out}
  .hamburger.is-open span:nth-child(1){transform:translateY(7px) rotate(45deg)}
  .hamburger.is-open span:nth-child(2){opacity:0}
  .hamburger.is-open span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}
  .mobile-drawer{
    position:fixed;left:0;right:0;top:56px;bottom:0;background:rgba(10,20,36,.98);
    padding:24px 20px calc(96px + env(safe-area-inset-bottom));z-index:55;
    transform:translateY(-8px);opacity:0;pointer-events:none;transition:opacity .22s ease-out,transform .22s ease-out;
    overflow-y:auto;
  }
  .mobile-drawer.is-open{opacity:1;transform:translateY(0);pointer-events:auto}
  @media (min-width:1024px){.mobile-drawer{display:none}}
  .drawer-nav{display:flex;flex-direction:column;gap:4px;margin-bottom:24px}
  .drawer-link{
    font-size:17px;color:rgba(255,255,255,.82);padding:14px 12px;border-radius:12px;
    border-left:3px solid transparent;opacity:0;transform:translateY(6px);
  }
  .mobile-drawer.is-open .drawer-link{animation:drawerIn .3s ease-out forwards}
  .mobile-drawer.is-open .drawer-link:nth-child(1){animation-delay:.04s}
  .mobile-drawer.is-open .drawer-link:nth-child(2){animation-delay:.08s}
  .mobile-drawer.is-open .drawer-link:nth-child(3){animation-delay:.12s}
  @keyframes drawerIn{to{opacity:1;transform:translateY(0)}}
  .drawer-link:hover,.drawer-link.is-active{background:rgba(37,230,196,.08);border-left-color:var(--c-neon);color:#fff}
  .drawer-cta{width:100%}

  /* ---------- Hero ---------- */
  .hero{
    position:relative;background:var(--c-bg);padding:40px 0 48px;overflow:hidden;
  }
  .hero::before{
    content:"";position:absolute;inset:0;
    background-image:radial-gradient(rgba(31,99,232,.16) 1px,transparent 1px);
    background-size:22px 22px;opacity:.4;pointer-events:none;
  }
  @media (min-width:1024px){.hero{padding:72px 0 88px}}
  .hero-grid{position:relative;display:grid;grid-template-columns:1fr;gap:40px;align-items:center}
  @media (min-width:1024px){.hero-grid{grid-template-columns:7fr 5fr;gap:48px}}
  .hero-title{
    font-size:clamp(30px,4.2vw,52px);line-height:1.15;font-weight:800;letter-spacing:-.01em;
    margin:20px 0 18px;color:var(--c-text);
  }
  .hero-title em{font-style:normal;background:linear-gradient(90deg,var(--c-primary),#3E8CFF);-webkit-background-clip:text;background-clip:text;color:transparent}
  .hero-sub{font-size:17px;line-height:1.75;color:var(--c-text-2);max-width:600px}
  @media (min-width:1024px){.hero-sub{font-size:18px}}
  .hero-cta{display:flex;flex-wrap:wrap;gap:14px;margin-top:28px}
  .hero-stats{display:flex;flex-wrap:wrap;gap:36px;margin-top:40px;padding-top:28px;border-top:1px solid var(--c-line)}
  .stat-num{font-size:28px;font-weight:700;color:var(--c-primary);line-height:1.2;font-variant-numeric:tabular-nums}
  .stat-label{font-size:13px;color:var(--c-text-2);margin-top:4px}

  .hero-visual{display:flex;justify-content:center}
  .shorts-stack{display:flex;align-items:flex-start;gap:16px;position:relative}
  .shorts-main{
    position:relative;width:100%;max-width:320px;aspect-ratio:9/16;border-radius:var(--r-big);
    overflow:hidden;background:linear-gradient(160deg,#EDF3FE,#F6F8FC);
    border:1px solid var(--c-line);box-shadow:var(--sh-card);
  }
  @media (min-width:1024px){.shorts-main{max-width:328px}}
  .shorts-main img{width:100%;height:100%;object-fit:cover}
  .shorts-overlay{
    position:absolute;inset:0;
    background:linear-gradient(180deg,rgba(10,20,36,.05) 0%,rgba(10,20,36,0) 42%,rgba(10,20,36,.82) 100%);
  }
  .badge-duration{
    position:absolute;right:12px;bottom:12px;background:rgba(0,0,0,.6);color:#fff;
    font-size:12px;padding:3px 8px;border-radius:6px;font-variant-numeric:tabular-nums;
  }
  .shorts-main .badge-hot{position:absolute;left:12px;top:12px}
  .play-btn{
    position:absolute;left:50%;top:50%;transform:translate(-50%,-50%);
    width:64px;height:64px;border-radius:50%;display:flex;align-items:center;justify-content:center;
    background:rgba(255,255,255,.2);color:#fff;border:2px solid rgba(37,230,196,.85);
    backdrop-filter:blur(4px);transition:transform .2s ease-out,box-shadow .2s ease-out;
  }
  .play-btn:hover{transform:translate(-50%,-50%) scale(1.06);box-shadow:0 0 20px rgba(37,230,196,.5)}
  .shorts-caption{position:absolute;left:14px;right:14px;bottom:44px;color:#fff}
  .shorts-caption strong{display:block;font-size:15px;font-weight:600}
  .shorts-caption span{display:block;font-size:13px;color:rgba(255,255,255,.75);margin-top:2px}
  .shorts-side{display:none;flex-direction:column;gap:16px}
  @media (min-width:1024px){.shorts-side{display:flex}}
  .shorts-mini{
    position:relative;width:150px;aspect-ratio:9/16;border-radius:16px;overflow:hidden;
    border:1px solid var(--c-line);background:linear-gradient(160deg,#EDF3FE,#F6F8FC);
    box-shadow:var(--sh-card);transition:transform .2s ease-out,box-shadow .2s ease-out;
  }
  .shorts-mini:nth-child(1){transform:translateY(34px)}
  .shorts-mini:nth-child(2){transform:translateY(6px)}
  .shorts-mini:hover{box-shadow:var(--sh-hover);transform:translateY(-2px)}
  .shorts-mini img{width:100%;height:100%;object-fit:cover}
  .shorts-mini::after{
    content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(10,20,36,0),rgba(10,20,36,.6));
  }
  .shorts-mini .badge-duration{z-index:2}

  /* ---------- 板块标题 ---------- */
  .sec-head{display:flex;align-items:flex-end;justify-content:space-between;gap:20px;flex-wrap:wrap;margin-bottom:28px}
  .sec-title{font-size:clamp(22px,2.6vw,32px);line-height:1.3;font-weight:700;letter-spacing:-.01em}
  .sec-desc{font-size:15px;color:var(--c-text-2);margin-top:8px;max-width:660px}
  .sec-more{font-size:15px;font-weight:600;color:var(--c-primary);display:inline-flex;align-items:center;gap:6px}
  .sec-more:hover{color:var(--c-primary-600)}
  .sec-more i{transition:transform .18s ease-out}
  .sec-more:hover i{transform:translateX(4px)}

  /* ---------- 横滑片段 ---------- */
  .scroll-shell{position:relative}
  .scroll-shell::before,.scroll-shell::after{
    content:"";position:absolute;top:0;bottom:0;width:32px;z-index:3;pointer-events:none;
  }
  .scroll-shell::before{left:0;background:linear-gradient(90deg,var(--c-bg),rgba(246,248,252,0))}
  .scroll-shell::after{right:0;background:linear-gradient(270deg,var(--c-bg),rgba(246,248,252,0))}
  .scroll-x{display:flex;gap:20px;overflow-x:auto;scroll-snap-type:x mandatory;padding:4px 32px 12px;margin:0 -32px;scrollbar-width:none;-ms-overflow-style:none}
  .scroll-x::-webkit-scrollbar{display:none}
  .clip-card{
    flex:0 0 220px;scroll-snap-align:start;background:#fff;border:1px solid var(--c-line);
    border-radius:var(--r-card);overflow:hidden;box-shadow:var(--sh-card);
    transition:transform .22s ease-out,box-shadow .22s ease-out;
  }
  @media (min-width:768px){.clip-card{flex:0 0 260px}}
  .clip-card:hover{transform:translateY(-4px);box-shadow:var(--sh-hover)}
  .clip-thumb{position:relative;aspect-ratio:4/3;overflow:hidden;background:linear-gradient(160deg,#EDF3FE,#F6F8FC)}
  .clip-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .35s ease-out}
  .clip-card:hover .clip-thumb img{transform:scale(1.03)}
  .clip-thumb .badge-dark{position:absolute;left:10px;top:10px}
  .clip-body{padding:14px 14px 16px}
  .clip-title{font-size:15px;font-weight:600;line-height:1.45;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;min-height:44px}
  .clip-card:hover .clip-title{color:var(--c-primary)}
  .clip-meta{display:flex;gap:12px;font-size:13px;color:var(--c-text-2);margin-top:10px;font-variant-numeric:tabular-nums}

  /* ---------- 种草清单 ---------- */
  .guide-grid{display:grid;grid-template-columns:1fr;gap:32px}
  @media (min-width:1024px){.guide-grid{grid-template-columns:7fr 5fr;gap:40px;align-items:start}}
  .guide-list{display:flex;flex-direction:column}
  .guide-item{
    display:flex;align-items:center;gap:18px;padding:20px 4px;border-bottom:1px dashed var(--c-line);
    transition:background-color .18s ease-out;
  }
  .guide-item:first-child{padding-top:4px}
  .guide-item:hover{background:var(--c-primary-050);border-radius:12px}
  .guide-idx{
    flex:none;width:44px;height:44px;border-radius:50%;display:flex;align-items:center;justify-content:center;
    font-size:15px;font-weight:700;color:var(--c-primary);border:2px solid rgba(37,230,196,.55);
    font-variant-numeric:tabular-nums;
  }
  .guide-text{flex:1 1 auto;min-width:0}
  .guide-text h3{font-size:16px;font-weight:600;line-height:1.5}
  .guide-text p{font-size:14px;color:var(--c-text-2);line-height:1.7;margin-top:2px}
  .guide-thumb{flex:none;width:64px;height:64px;border-radius:12px;overflow:hidden;background:linear-gradient(160deg,#EDF3FE,#F6F8FC);border:1px solid var(--c-line)}
  .guide-thumb img{width:100%;height:100%;object-fit:cover}
  .sticky-card{
    position:relative;background:#fff;border:1px solid var(--c-line);border-radius:var(--r-card);
    padding:24px;box-shadow:var(--sh-card);overflow:hidden;
  }
  @media (min-width:1024px){.sticky-card{position:sticky;top:88px}}
  .sticky-card::before{
    content:"";position:absolute;left:0;right:0;top:0;height:3px;
    background:linear-gradient(90deg,var(--c-neon),var(--c-primary));
  }
  .sticky-title{font-size:18px;font-weight:700;margin-bottom:6px}
  .sticky-sub{font-size:14px;color:var(--c-text-2);margin-bottom:18px}
  .check-list li{display:flex;gap:10px;font-size:15px;color:var(--c-text);padding:9px 0;line-height:1.65}
  .check-list i{color:var(--c-neon);margin-top:5px;font-size:14px}
  .sticky-card .btn{margin-top:20px}
  .sticky-note{font-size:12px;color:var(--c-text-2);text-align:center;margin-top:12px}

  /* ---------- 口碑 ---------- */
  .review-summary{display:flex;align-items:center;gap:16px;flex-wrap:wrap;margin-bottom:24px}
  .review-score{font-size:32px;font-weight:700;line-height:1;font-variant-numeric:tabular-nums}
  .stars{color:var(--c-accent);font-size:15px;letter-spacing:2px}
  .review-count{font-size:14px;color:var(--c-text-2);font-variant-numeric:tabular-nums}
  .review-card{
    flex:0 0 300px;scroll-snap-align:start;background:#fff;border:1px solid var(--c-line);border-radius:14px;
    padding:18px;box-shadow:var(--sh-card);transition:box-shadow .2s ease-out,transform .2s ease-out;
  }
  .review-card:hover{box-shadow:var(--sh-hover);transform:translateY(-2px)}
  .review-head{display:flex;align-items:center;gap:12px;margin-bottom:10px}
  .avatar{
    width:40px;height:40px;border-radius:50%;flex:none;display:flex;align-items:center;justify-content:center;
    background:var(--c-primary-050);color:var(--c-primary);font-weight:700;font-size:15px;
  }
  .review-name{font-size:14px;font-weight:600}
  .review-time{font-size:12px;color:var(--c-text-2);margin-top:2px}
  .review-body{font-size:14px;line-height:1.7;color:var(--c-text-2);display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden}

  /* ---------- 资讯列表 ---------- */
  .chips{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:24px}
  .chip{
    font-size:13px;font-weight:600;padding:7px 14px;border-radius:999px;background:#fff;
    border:1px solid var(--c-line);color:var(--c-text-2);transition:all .18s ease-out;
  }
  .chip:hover{border-color:var(--c-primary);color:var(--c-primary);background:var(--c-primary-050)}
  .chip.is-on{background:var(--c-primary);border-color:var(--c-primary);color:#fff}
  .post-grid{display:grid;grid-template-columns:1fr;gap:24px}
  @media (min-width:768px){.post-grid{grid-template-columns:repeat(2,1fr)}}
  @media (min-width:1024px){.post-grid{grid-template-columns:repeat(3,1fr)}}
  .post-card{
    display:flex;flex-direction:column;background:#fff;border:1px solid var(--c-line);
    border-radius:var(--r-card);overflow:hidden;box-shadow:var(--sh-card);
    transition:transform .22s ease-out,box-shadow .22s ease-out;
  }
  .post-card:hover{transform:translateY(-4px);box-shadow:var(--sh-hover)}
  .post-cover{position:relative;aspect-ratio:16/9;overflow:hidden;background:linear-gradient(160deg,#EDF3FE,#F6F8FC)}
  .post-cover img{width:100%;height:100%;object-fit:cover;transition:transform .35s ease-out}
  .post-card:hover .post-cover img{transform:scale(1.03)}
  .post-cover .badge{position:absolute;left:12px;bottom:12px}
  .post-body{padding:18px;display:flex;flex-direction:column;flex:1 1 auto}
  .post-title{font-size:16px;font-weight:600;line-height:1.45;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
  .post-card:hover .post-title{color:var(--c-primary)}
  .post-excerpt{font-size:14px;line-height:1.7;color:var(--c-text-2);margin-top:10px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
  .post-meta{display:flex;align-items:center;gap:10px;font-size:13px;color:var(--c-text-2);margin-top:auto;padding-top:16px;font-variant-numeric:tabular-nums}
  .post-meta .sep{width:1px;height:12px;background:var(--c-line)}
  .post-feature{grid-column:1/-1}
  @media (min-width:768px){.post-feature{grid-column:span 2 / span 2}}
  @media (min-width:1024px){
    .post-feature{grid-column:span 2 / span 2;flex-direction:row}
    .post-feature .post-cover{flex:0 0 52%;aspect-ratio:auto;min-height:280px}
    .post-feature .post-body{padding:26px}
    .post-feature .post-title{font-size:21px;-webkit-line-clamp:3}
    .post-feature .post-excerpt{-webkit-line-clamp:3;font-size:15px}
  }
  .empty-state{
    display:flex;flex-direction:column;align-items:center;justify-content:center;gap:14px;
    padding:56px 24px;background:#fff;border:1px solid var(--c-line);border-radius:var(--r-card);text-align:center;
  }
  .empty-icon{
    width:56px;height:56px;border-radius:16px;display:flex;align-items:center;justify-content:center;
    background:var(--c-primary-050);color:var(--c-primary);font-size:22px;
  }
  .empty-state p{font-size:15px;color:var(--c-text-2)}

  /* ---------- FAQ ---------- */
  .faq-wrap{max-width:860px;margin:0 auto}
  .faq-item{background:#fff;border:1px solid var(--c-line);border-radius:var(--r-card);margin-bottom:12px;overflow:hidden;transition:box-shadow .2s ease-out}
  .faq-item.is-open{box-shadow:var(--sh-card)}
  .faq-q{
    width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;
    padding:16px 20px;min-height:54px;font-size:16px;font-weight:600;text-align:left;color:var(--c-text);
  }
  .faq-q:hover{color:var(--c-primary)}
  .faq-icon{
    flex:none;width:24px;height:24px;border-radius:50%;border:1px solid var(--c-primary);color:var(--c-primary);
    display:flex;align-items:center;justify-content:center;font-size:12px;transition:all .2s ease-out;
  }
  .faq-item.is-open .faq-icon{background:var(--c-primary);color:#fff;transform:rotate(45deg)}
  .faq-a{max-height:0;overflow:hidden;transition:max-height .28s ease-out}
  .faq-a-inner{
    padding:0 20px 20px 20px;font-size:15px;line-height:1.85;color:var(--c-text-2);
    border-left:3px solid transparent;margin-left:20px;padding-left:16px;
  }
  .faq-item.is-open .faq-a-inner{border-left-color:var(--c-neon)}

  /* ---------- 尾部 CTA ---------- */
  .cta-box{
    position:relative;background:linear-gradient(135deg,#EDF3FE 0%,#F6F8FC 55%,#EAF6F4 100%);
    border:1px solid var(--c-line);border-radius:var(--r-big);padding:44px 24px;text-align:center;overflow:hidden;
  }
  .cta-box::before{
    content:"";position:absolute;left:50%;top:0;transform:translateX(-50%);width:120px;height:3px;border-radius:0 0 4px 4px;
    background:linear-gradient(90deg,var(--c-neon),var(--c-primary));
  }
  .cta-title{font-size:clamp(22px,2.6vw,30px);font-weight:700;line-height:1.35}
  .cta-sub{font-size:15px;color:var(--c-text-2);margin:12px auto 24px;max-width:620px}
  .cta-note{font-size:13px;color:var(--c-text-2);margin-top:14px}

  /* ---------- 页脚 ---------- */
  .site-footer{position:relative;background:var(--c-ink);color:rgba(255,255,255,.68);padding:56px 0 calc(96px + env(safe-area-inset-bottom));}
  @media (min-width:1024px){.site-footer{padding:64px 0 32px}}
  .site-footer::before{
    content:"";position:absolute;left:0;right:0;top:0;height:2px;
    background:linear-gradient(90deg,var(--c-neon),var(--c-primary),rgba(31,99,232,0));
  }
  .footer-grid{display:grid;grid-template-columns:1fr;gap:36px}
  @media (min-width:768px){.footer-grid{grid-template-columns:repeat(2,1fr)}}
  @media (min-width:1024px){.footer-grid{grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:40px}}
  .footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:14px}
  .footer-brand .brand-mark{font-size:19px}
  .footer-text{font-size:14px;line-height:1.8;color:rgba(255,255,255,.62);max-width:340px}
  .footer-title{font-size:14px;font-weight:700;color:#fff;margin-bottom:16px}
  .footer-links li{margin-bottom:10px}
  .footer-links a{font-size:14px;color:rgba(255,255,255,.68);border-bottom:1px solid transparent;padding-bottom:1px}
  .footer-links a:hover{color:#fff;border-bottom-color:var(--c-neon)}
  .footer-contact li{font-size:14px;color:rgba(255,255,255,.68);margin-bottom:10px;display:flex;gap:10px;align-items:flex-start}
  .footer-contact i{color:var(--c-neon);margin-top:5px;font-size:13px}
  .footer-bottom{
    margin-top:40px;padding-top:22px;border-top:1px solid rgba(255,255,255,.1);
    display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;font-size:13px;color:rgba(255,255,255,.5);
  }
  .footer-bottom a{color:rgba(255,255,255,.6)}
  .footer-bottom a:hover{color:#fff}

  /* ---------- 移动吸底 ---------- */
  .sticky-bar{
    position:fixed;left:0;right:0;bottom:0;z-index:58;display:flex;align-items:center;justify-content:space-between;gap:14px;
    height:60px;padding:0 16px calc(0px + env(safe-area-inset-bottom));
    background:#fff;box-shadow:0 -8px 24px rgba(15,27,45,.1);border-top:1px solid var(--c-line);
  }
  @media (min-width:1024px){.sticky-bar{display:none}}
  .sticky-bar-text{font-size:13px;line-height:1.4;color:var(--c-text-2)}
  .sticky-bar-text strong{display:block;font-size:14px;font-weight:700;color:var(--c-text)}

/* roulang page: article */
:root{
  --c-ink:#0A1424;
  --c-ink-2:#111E33;
  --c-primary:#1F63E8;
  --c-primary-600:#1750C2;
  --c-primary-050:#EDF3FE;
  --c-neon:#25E6C4;
  --c-accent:#FF7A45;
  --c-text:#0F1B2D;
  --c-text-2:#5B6C87;
  --c-line:#E5EBF5;
  --c-bg:#F6F8FC;
  --r-card:16px;
  --r-lg:20px;
  --r-btn:10px;
  --shadow-sm:0 1px 2px rgba(15,27,45,.04),0 8px 24px rgba(15,27,45,.06);
  --shadow-hover:0 12px 32px rgba(31,99,232,.14);
  --font:"PingFang SC","HarmonyOS Sans SC","Hiragino Sans GB","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
  --sp-sec-desktop:88px;
  --sp-sec-mobile:56px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:var(--font);
  background:var(--c-bg);
  color:var(--c-text);
  font-size:16px;
  line-height:1.9;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{max-width:100%;display:block;border:0}
a{color:inherit;text-decoration:none;transition:color .18s ease-out,border-color .18s ease-out,background-color .18s ease-out}
button{font-family:inherit;cursor:pointer;border:0;background:none;color:inherit}
input{font-family:inherit}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4,p,figure{margin:0}
h1,h2,h3{letter-spacing:-.01em}
:focus-visible{outline:2px solid var(--c-primary);outline-offset:2px}
.num{font-variant-numeric:tabular-nums}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 20px}
@media(min-width:1024px){.container{padding:0 24px}}

/* ============ 导航 ============ */
.site-header{
  position:sticky;top:0;z-index:60;
  background:var(--c-ink);
  border-bottom:1px solid rgba(255,255,255,.08);
  transition:background .25s ease-out,box-shadow .25s ease-out;
}
.site-header::after{
  content:"";position:absolute;left:0;right:0;bottom:-1px;height:2px;
  background:linear-gradient(90deg,rgba(37,230,196,.62),rgba(31,99,232,.62));
}
.site-header.is-scrolled{
  background:rgba(10,20,36,.92);
  backdrop-filter:blur(8px);
  -webkit-backdrop-filter:blur(8px);
  box-shadow:0 8px 24px rgba(10,20,36,.28);
}
.header-inner{display:flex;align-items:center;justify-content:space-between;gap:12px;height:56px}
.brand{display:flex;align-items:center;gap:10px;min-width:0;flex-shrink:0}
.brand-mark{font-size:19px;font-weight:800;color:#fff;letter-spacing:-.01em;white-space:nowrap}
.brand-sep{width:1px;height:16px;background:rgba(255,255,255,.24);flex-shrink:0}
.brand-sub{font-size:13px;color:rgba(255,255,255,.72);white-space:nowrap}
.nav-desktop{display:none}
.nav-link{
  position:relative;display:flex;align-items:center;height:64px;
  font-size:15px;color:rgba(255,255,255,.75);
}
.nav-link::after{
  content:"";position:absolute;left:0;right:0;bottom:0;height:2px;
  background:linear-gradient(90deg,var(--c-neon),var(--c-primary));
  transform:scaleX(0);transform-origin:left;
  transition:transform .2s ease-out;
}
.nav-link:hover{color:#fff}
.nav-link:hover::after{transform:scaleX(1)}
.nav-link.is-active{
  color:#fff;
  transform:translateY(-1px);
  text-shadow:0 0 12px rgba(37,230,196,.55);
}
.nav-link.is-active::after{transform:scaleX(1)}
.header-actions{display:flex;align-items:center;gap:10px}
.icon-btn{
  display:inline-flex;align-items:center;justify-content:center;
  width:36px;height:36px;border-radius:999px;
  border:1px solid rgba(255,255,255,.22);
  color:rgba(255,255,255,.8);font-size:14px;
  transition:all .18s ease-out;
}
.icon-btn:hover{border-color:var(--c-neon);color:#fff;box-shadow:0 0 12px rgba(37,230,196,.35)}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:44px;padding:0 22px;border-radius:var(--r-btn);
  font-size:15px;font-weight:600;white-space:nowrap;
  transition:all .18s ease-out;
}
.btn-accent{background:var(--c-accent);color:#fff}
.btn-accent:hover{filter:brightness(1.08);transform:translateY(-1px);box-shadow:0 6px 16px rgba(255,122,69,.35)}
.btn-accent:active{transform:translateY(0);filter:brightness(.96)}
.btn-sm{height:38px;padding:0 16px;font-size:14px}
.btn-outline{border:1px solid var(--c-primary);color:var(--c-primary);background:#fff}
.btn-outline:hover{background:var(--c-primary-050);box-shadow:0 6px 16px rgba(31,99,232,.12)}
.btn-outline:active{transform:translateY(1px)}
.btn-ghost{background:#fff;border:1px solid var(--c-line);color:var(--c-primary)}
.btn-ghost:hover{border-color:var(--c-primary);background:var(--c-primary-050)}
.hamburger{
  display:flex;flex-direction:column;align-items:center;justify-content:center;gap:5px;
  width:40px;height:40px;border-radius:8px;
}
.hamburger span{display:block;width:20px;height:2px;border-radius:2px;background:#fff;transition:transform .22s ease-out,opacity .22s ease-out}
.hamburger.is-open span:nth-child(1){transform:translateY(7px) rotate(45deg)}
.hamburger.is-open span:nth-child(2){opacity:0}
.hamburger.is-open span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}
.mobile-drawer{
  position:fixed;top:56px;left:0;right:0;bottom:0;z-index:55;
  display:flex;flex-direction:column;justify-content:space-between;gap:24px;
  padding:28px 20px calc(28px + env(safe-area-inset-bottom));
  background:rgba(10,20,36,.98);
  backdrop-filter:blur(10px);-webkit-backdrop-filter:blur(10px);
  opacity:0;visibility:hidden;transform:translateY(-12px);
  transition:opacity .22s ease-out,transform .22s ease-out,visibility .22s;
  overflow-y:auto;
}
.mobile-drawer.is-open{opacity:1;visibility:visible;transform:translateY(0)}
.drawer-nav{display:flex;flex-direction:column}
.drawer-link{
  font-size:17px;color:rgba(255,255,255,.78);
  padding:15px 4px;border-bottom:1px solid rgba(255,255,255,.08);
  opacity:0;transform:translateY(8px);
  transition:opacity .3s ease-out,transform .3s ease-out,color .18s;
}
.mobile-drawer.is-open .drawer-link{opacity:1;transform:translateY(0)}
.drawer-link:nth-child(1){transition-delay:.04s}
.drawer-link:nth-child(2){transition-delay:.08s}
.drawer-link:nth-child(3){transition-delay:.12s}
.drawer-link:nth-child(4){transition-delay:.16s}
.drawer-link.is-active{color:#fff;border-left:3px solid var(--c-neon);padding-left:12px}
.drawer-cta{width:100%}
body.drawer-open{overflow:hidden}
@media(min-width:1024px){
  .header-inner{height:64px}
  .nav-desktop{display:flex;align-items:center;gap:28px}
  .hamburger{display:none}
  .mobile-drawer{display:none}
  .brand-mark{font-size:20px}
  .brand-sub{font-size:14px}
}
@media(max-width:479px){
  .brand-sub{display:none}
  .brand-sep{display:none}
}

/* ============ 通用组件 ============ */
.section{padding:var(--sp-sec-mobile) 0}
@media(min-width:1024px){.section{padding:var(--sp-sec-desktop) 0}}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:16px;margin-bottom:28px}
.section-head h2{font-size:clamp(22px,2.6vw,32px);line-height:1.3;font-weight:700}
.section-head .sub{margin-top:8px;font-size:14px;color:var(--c-text-2)}
.more-link{display:inline-flex;align-items:center;gap:6px;font-size:14px;font-weight:600;color:var(--c-primary);white-space:nowrap}
.more-link i{transition:transform .18s ease-out}
.more-link:hover{color:var(--c-primary-600)}
.more-link:hover i{transform:translateX(4px)}
.neon-line{height:2px;border-radius:2px;background:linear-gradient(90deg,rgba(37,230,196,.7),rgba(31,99,232,.55))}
.card{
  background:#fff;border:1px solid var(--c-line);border-radius:var(--r-card);
  box-shadow:var(--shadow-sm);
  transition:transform .2s ease-out,box-shadow .2s ease-out,border-color .2s ease-out;
}
.card-hover:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover);border-color:#D8E4FA}
.thumb-wrap{
  position:relative;overflow:hidden;border-radius:14px;
  background:linear-gradient(135deg,#EDF3FE,#F6F8FC);
}
.thumb-wrap img{width:100%;height:100%;object-fit:cover;transition:transform .3s ease-out}
.card-hover:hover .thumb-wrap img{transform:scale(1.03)}
.badge{
  display:inline-flex;align-items:center;height:24px;padding:0 10px;
  border-radius:999px;font-size:12px;font-weight:600;line-height:1;
}
.badge-cat{background:var(--c-primary-050);color:var(--c-primary)}

/* ============ 文章页头部 ============ */
.article-hero{padding:28px 0 0}
.breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:14px;color:var(--c-text-2)}
.breadcrumb a{color:var(--c-text-2)}
.breadcrumb a:hover{color:var(--c-primary)}
.breadcrumb .sep{color:#B7C3D6}
.breadcrumb .current{color:var(--c-text);max-width:min(560px,70vw);overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.article-head{max-width:820px;margin:22px auto 0;padding:0 20px}
.article-head h1{
  font-size:clamp(26px,3.6vw,38px);
  line-height:1.3;font-weight:800;color:var(--c-text);
}
.post-meta{
  display:flex;flex-wrap:wrap;align-items:center;gap:10px;
  margin-top:16px;font-size:14px;color:var(--c-text-2);
}
.post-meta .dot{color:#C3CDDE}
.article-cover{
  max-width:900px;margin:28px auto 0;padding:0 20px;
}
.article-cover-inner{
  border-radius:var(--r-card);overflow:hidden;
  border:1px solid var(--c-line);
  background:linear-gradient(135deg,#EDF3FE,#F6F8FC);
}
.article-cover-inner img{width:100%;aspect-ratio:16/9;object-fit:cover}

/* ============ 正文 ============ */
.article-wrap{padding:36px 0 72px}
.article-body{
  max-width:760px;margin:0 auto;padding:0 20px;
  font-size:17px;line-height:1.95;color:#1B2A40;
}
.article-body > *:first-child{margin-top:0}
.article-body p{margin:0 0 1.5em}
.article-body h2{
  position:relative;
  font-size:22px;font-weight:700;line-height:1.4;
  margin:40px 0 16px;padding-left:14px;color:var(--c-text);
}
.article-body h2::before{
  content:"";position:absolute;left:0;top:5px;bottom:5px;width:4px;border-radius:2px;
  background:linear-gradient(180deg,var(--c-neon),var(--c-primary));
}
.article-body h3{font-size:19px;font-weight:600;line-height:1.5;margin:28px 0 12px;color:var(--c-text)}
.article-body h4{font-size:17px;font-weight:600;margin:22px 0 10px;color:var(--c-text)}
.article-body blockquote{
  margin:24px 0;padding:16px 20px;
  background:var(--c-primary-050);
  border-left:3px solid var(--c-primary);
  border-radius:0 12px 12px 0;
  color:#2A3B55;font-size:16px;
}
.article-body blockquote p:last-child{margin-bottom:0}
.article-body ul{margin:0 0 1.5em;padding-left:0}
.article-body ul li{position:relative;padding-left:22px;margin-bottom:10px}
.article-body ul li::before{
  content:"";position:absolute;left:4px;top:.78em;
  width:7px;height:7px;border-radius:50%;background:var(--c-primary);
}
.article-body ol{margin:0 0 1.5em;padding-left:22px;list-style:decimal}
.article-body ol li{margin-bottom:10px}
.article-body ol li::marker{color:var(--c-primary);font-weight:700}
.article-body img{border-radius:12px;margin:24px auto}
.article-body figure{margin:24px 0}
.article-body figcaption{
  text-align:center;font-size:13px;color:var(--c-text-2);margin-top:10px;
}
.article-body a{color:var(--c-primary);border-bottom:1px solid rgba(31,99,232,.32)}
.article-body a:hover{color:var(--c-primary-600);border-bottom-color:var(--c-primary-600)}
.article-body table{
  width:100%;border-collapse:collapse;margin:24px 0;
  font-size:15px;display:block;overflow-x:auto;white-space:nowrap;
}
.article-body thead th{
  background:var(--c-primary-050);color:var(--c-primary);
  font-weight:600;text-align:left;padding:12px 16px;
  border-bottom:1px solid var(--c-line);
}
.article-body tbody td{padding:12px 16px;border-bottom:1px solid var(--c-line);color:#2A3B55}
.article-body tbody tr:nth-child(even){background:#F9FBFF}
.article-body hr{border:0;border-top:1px solid var(--c-line);margin:32px 0}

.inline-cta{
  margin:32px 0;padding:24px;
  border-radius:var(--r-card);
  background:linear-gradient(135deg,#EDF3FE,#F6F8FC);
  border:1px solid #DCE7FB;
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:16px;
}
.inline-cta h3{font-size:18px;font-weight:700;margin:0 0 6px}
.inline-cta p{font-size:14px;color:var(--c-text-2);margin:0}

.empty-state{
  max-width:760px;margin:0 auto;padding:48px 20px;text-align:center;
}
.empty-icon{
  width:64px;height:64px;margin:0 auto 18px;border-radius:18px;
  display:flex;align-items:center;justify-content:center;
  background:var(--c-primary-050);color:var(--c-primary);font-size:24px;
}
.empty-state p{color:var(--c-text-2);font-size:15px;margin-bottom:20px}

/* 标签与操作条 */
.post-foot{max-width:760px;margin:0 auto;padding:0 20px}
.post-tags{display:flex;flex-wrap:wrap;gap:10px;margin-top:40px}
.tag{
  display:inline-flex;align-items:center;height:30px;padding:0 14px;
  border-radius:999px;background:#fff;border:1px solid var(--c-line);
  font-size:13px;color:var(--c-text-2);
  transition:all .18s ease-out;
}
.tag:hover{border-color:var(--c-primary);color:var(--c-primary);background:var(--c-primary-050)}
.post-actions{
  display:flex;flex-wrap:wrap;align-items:center;gap:12px;
  margin-top:24px;padding-top:24px;border-top:1px solid var(--c-line);
}
.action-btn{
  display:inline-flex;align-items:center;gap:8px;
  height:40px;padding:0 18px;border-radius:999px;
  border:1px solid var(--c-line);background:#fff;
  font-size:14px;color:var(--c-text-2);
  transition:all .18s ease-out;
}
.action-btn:hover{
  border-color:var(--c-neon);color:var(--c-primary);
  box-shadow:0 0 14px rgba(37,230,196,.35);
}
.action-btn:active{transform:translateY(1px)}
.action-btn.is-on{border-color:var(--c-primary);color:var(--c-primary);background:var(--c-primary-050)}
.back-btn{margin-left:auto}

/* 相关推荐 */
.rel-grid{display:grid;grid-template-columns:1fr;gap:24px}
@media(min-width:768px){.rel-grid{grid-template-columns:repeat(2,1fr)}}
@media(min-width:1024px){.rel-grid{grid-template-columns:repeat(3,1fr)}}
.rel-card{display:flex;flex-direction:column;overflow:hidden;padding:0}
.rel-card .thumb-wrap{border-radius:0;aspect-ratio:16/9}
.rel-card .rel-body{padding:16px 18px 20px;display:flex;flex-direction:column;gap:10px;flex:1}
.rel-card .rel-title{
  font-size:16px;font-weight:600;line-height:1.45;color:var(--c-text);
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
  transition:color .18s ease-out;
}
.rel-card:hover .rel-title{color:var(--c-primary)}
.rel-card .rel-desc{
  font-size:14px;line-height:1.7;color:var(--c-text-2);
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.rel-card .rel-meta{
  margin-top:auto;display:flex;align-items:center;gap:10px;
  font-size:13px;color:var(--c-text-2);
}

/* ============ CTA ============ */
.cta-block{
  border-radius:var(--r-lg);
  background:linear-gradient(135deg,#EDF3FE,#F6F8FC);
  border:1px solid #DCE7FB;
  padding:40px 24px;text-align:center;
}
.cta-block h2{font-size:clamp(22px,2.6vw,30px);font-weight:700;line-height:1.3;margin-bottom:12px}
.cta-block p{font-size:15px;color:var(--c-text-2);max-width:620px;margin:0 auto 24px}
.cta-actions{display:flex;flex-wrap:wrap;justify-content:center;gap:12px}
.cta-note{margin-top:14px;font-size:13px;color:var(--c-text-2)}

/* ============ 页脚 ============ */
.site-footer{
  position:relative;
  background:var(--c-ink);color:rgba(255,255,255,.68);
  margin-top:0;padding-top:2px;
}
.site-footer::before{
  content:"";position:absolute;top:0;left:0;right:0;height:2px;
  background:linear-gradient(90deg,rgba(37,230,196,.7),rgba(31,99,232,.55));
}
.footer-grid{
  display:grid;grid-template-columns:1fr;gap:32px;
  padding:56px 0 32px;
}
@media(min-width:768px){.footer-grid{grid-template-columns:repeat(2,1fr)}}
@media(min-width:1024px){.footer-grid{grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:40px}}
.footer-brand{display:flex;align-items:center;gap:10px;flex-wrap:wrap;margin-bottom:14px}
.footer-brand .brand-mark{color:#fff}
.footer-text{font-size:14px;line-height:1.8;color:rgba(255,255,255,.62);max-width:340px}
.footer-title{font-size:14px;font-weight:700;color:#fff;margin-bottom:16px}
.footer-links li,.footer-contact li{margin-bottom:10px}
.footer-links a,.footer-contact li{
  font-size:14px;color:rgba(255,255,255,.68);
  transition:color .18s ease-out;
}
.footer-links a{position:relative}
.footer-links a:hover{
  color:#fff;
  border-bottom:1px solid rgba(37,230,196,.7);
}
.footer-contact li{display:flex;align-items:flex-start;gap:10px}
.footer-contact i{color:var(--c-neon);margin-top:5px;font-size:13px}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.08);
  padding:20px 0 28px;
  display:flex;flex-wrap:wrap;gap:10px 24px;
  font-size:13px;color:rgba(255,255,255,.5);
}
.footer-bottom a{color:rgba(255,255,255,.62)}
.footer-bottom a:hover{color:#fff}
@media(max-width:1023px){
  .site-footer{padding-bottom:calc(12px + env(safe-area-inset-bottom))}
}

/* roulang page: category1 */
:root{
  --c-ink:#0A1424;
  --c-ink-2:#111E33;
  --c-primary:#1F63E8;
  --c-primary-600:#1750C2;
  --c-primary-050:#EDF3FE;
  --c-neon:#25E6C4;
  --c-accent:#FF7A45;
  --c-text:#0F1B2D;
  --c-text-2:#5B6C87;
  --c-line:#E5EBF5;
  --c-bg:#F6F8FC;
  --r-card:16px;
  --r-big:20px;
  --r-btn:10px;
  --shadow-card:0 1px 2px rgba(15,27,45,.04),0 8px 24px rgba(15,27,45,.06);
  --shadow-hover:0 12px 32px rgba(31,99,232,.14);
  --container:1200px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
html body{
  margin:0;
  background:var(--c-bg);
  color:var(--c-text);
  font-family:"PingFang SC","HarmonyOS Sans SC","Hiragino Sans GB","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
  font-size:16px;
  line-height:1.9;
  text-align:left;
}
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}
button{font-family:inherit;cursor:pointer;border:0;background:none;color:inherit}
h1,h2,h3,h4{margin:0;letter-spacing:-0.01em;font-weight:700}
p{margin:0}
ul{margin:0;padding:0;list-style:none}
:focus-visible{outline:2px solid var(--c-primary);outline-offset:2px;border-radius:8px}
.num{font-variant-numeric:tabular-nums}
.container{width:100%;max-width:var(--container);margin:0 auto;padding-left:24px;padding-right:24px}
.section{padding:88px 0}
.section-tight{padding:56px 0}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:32px}
.section-title{font-size:clamp(22px,2.6vw,32px);line-height:1.3}
.section-sub{margin-top:10px;font-size:15px;color:var(--c-text-2);max-width:720px}
.section-link{font-size:15px;font-weight:600;color:var(--c-primary);white-space:nowrap}
.section-link i{margin-left:6px;font-size:12px;transition:transform .18s ease-out}
.section-link:hover i{transform:translateX(4px)}
.neon-line{height:2px;border-radius:2px;background:linear-gradient(90deg,rgba(37,230,196,.7),rgba(31,99,232,.7));border:0}

/* ---------- 导航 ---------- */
.site-header{position:sticky;top:0;z-index:60;background:var(--c-ink);border-bottom:1px solid rgba(255,255,255,.08)}
.site-header::after{content:"";display:block;height:2px;background:linear-gradient(90deg,rgba(37,230,196,.75),rgba(31,99,232,.7));opacity:.9}
.site-header.is-scrolled{background:rgba(10,20,36,.92);backdrop-filter:blur(8px);box-shadow:0 10px 30px rgba(10,20,36,.28)}
.header-inner{height:64px;display:flex;align-items:center;justify-content:space-between;gap:24px}
.brand{display:flex;align-items:center;gap:10px;min-width:0}
.brand-mark{font-size:19px;font-weight:800;color:#fff;letter-spacing:-0.01em}
.brand-sep{width:1px;height:16px;background:rgba(255,255,255,.24);display:inline-block}
.brand-sub{font-size:14px;color:rgba(255,255,255,.72);white-space:nowrap}
.nav-desktop{display:flex;align-items:center;gap:30px}
.nav-link{position:relative;font-size:15px;color:rgba(255,255,255,.75);padding:20px 0;line-height:1.2}
.nav-link::after{content:"";position:absolute;left:0;right:0;bottom:14px;height:2px;border-radius:2px;background:linear-gradient(90deg,var(--c-neon),var(--c-primary));transform:scaleX(0);transform-origin:left;transition:transform .2s ease-out}
.nav-link:hover{color:#fff}
.nav-link:hover::after{transform:scaleX(1)}
.nav-link.is-active{color:#fff;transform:translateY(-1px);text-shadow:0 0 12px rgba(37,230,196,.55)}
.nav-link.is-active::after{transform:scaleX(1)}
.header-actions{display:flex;align-items:center;gap:12px}
.icon-btn{width:36px;height:36px;border-radius:var(--r-btn);border:1px solid rgba(255,255,255,.18);color:rgba(255,255,255,.82);display:grid;place-items:center;font-size:14px;transition:background-color .18s ease-out,color .18s ease-out,border-color .18s ease-out}
.icon-btn:hover{background:rgba(255,255,255,.08);color:#fff;border-color:rgba(255,255,255,.34)}
.hamburger{display:none;width:38px;height:38px;border-radius:var(--r-btn);border:1px solid rgba(255,255,255,.18);flex-direction:column;align-items:center;justify-content:center;gap:5px}
.hamburger span{display:block;width:16px;height:1.5px;background:rgba(255,255,255,.85);transition:transform .2s ease-out,opacity .2s ease-out}
.hamburger.is-open span:nth-child(1){transform:translateY(6.5px) rotate(45deg)}
.hamburger.is-open span:nth-child(2){opacity:0}
.hamburger.is-open span:nth-child(3){transform:translateY(-6.5px) rotate(-45deg)}
.mobile-drawer{position:fixed;inset:64px 0 0;background:rgba(10,20,36,.98);backdrop-filter:blur(10px);padding:28px 20px 32px;display:flex;flex-direction:column;justify-content:space-between;transform:translateY(-8px);opacity:0;visibility:hidden;transition:opacity .22s ease-out,transform .22s ease-out,visibility .22s}
.mobile-drawer.is-open{opacity:1;visibility:visible;transform:translateY(0)}
.drawer-nav{display:flex;flex-direction:column;gap:6px}
.drawer-link{font-size:17px;color:rgba(255,255,255,.82);padding:14px 4px;border-bottom:1px solid rgba(255,255,255,.08);opacity:0;transform:translateY(6px);transition:opacity .3s ease-out,transform .3s ease-out,color .18s ease-out}
.mobile-drawer.is-open .drawer-link{opacity:1;transform:translateY(0)}
.drawer-link:nth-child(1){transition-delay:.04s}
.drawer-link:nth-child(2){transition-delay:.08s}
.drawer-link:nth-child(3){transition-delay:.12s}
.drawer-link.is-active{color:#fff;text-shadow:0 0 12px rgba(37,230,196,.55);border-bottom-color:rgba(37,230,196,.5)}
.drawer-link:hover{color:#fff}

/* ---------- 按钮 ---------- */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;height:44px;padding:0 22px;border-radius:var(--r-btn);font-size:15px;font-weight:600;line-height:1;transition:transform .16s ease-out,box-shadow .18s ease-out,background-color .18s ease-out,color .18s ease-out,border-color .18s ease-out}
.btn-sm{height:38px;padding:0 16px;font-size:14px}
.btn-lg{height:48px;padding:0 28px;font-size:16px}
.btn-accent{background:var(--c-accent);color:#fff;box-shadow:0 2px 8px rgba(255,122,69,.24)}
.btn-accent:hover{filter:brightness(1.08);transform:translateY(-1px);box-shadow:0 6px 16px rgba(255,122,69,.35)}
.btn-accent:active{transform:translateY(0);filter:brightness(.96)}
.btn-outline{border:1px solid var(--c-primary);color:var(--c-primary);background:#fff}
.btn-outline:hover{background:var(--c-primary-050)}
.btn-ghost{border:1px solid var(--c-line);background:#fff;color:var(--c-primary)}
.btn-ghost:hover{border-color:var(--c-primary);background:var(--c-primary-050)}
.btn-ghost-light{border:1px solid rgba(255,255,255,.42);color:#fff;background:rgba(255,255,255,.06)}
.btn-ghost-light:hover{background:rgba(255,255,255,.14);border-color:#fff}

/* ---------- 分类页 Hero ---------- */
.cat-hero{position:relative;color:#fff;padding:52px 0 6px;background-image:linear-gradient(rgba(10,20,36,.42),rgba(10,20,36,.42)),url('/assets/images/backpic/back-1.webp'),linear-gradient(135deg,#EDF3FE,#F6F8FC);background-size:cover,cover,cover;background-position:center,center,center;background-repeat:no-repeat}
.cat-hero::after{content:"";display:block;height:2px;margin-top:44px;background:linear-gradient(90deg,rgba(37,230,196,.7),rgba(31,99,232,.55))}
.crumbs{display:flex;align-items:center;flex-wrap:wrap;gap:8px;font-size:14px;color:rgba(255,255,255,.72)}
.crumbs a{color:rgba(255,255,255,.82)}
.crumbs a:hover{color:#fff;text-decoration:underline;text-underline-offset:3px}
.crumb-sep{color:rgba(255,255,255,.4)}
.cat-hero-inner{max-width:820px;padding:22px 0 40px}
.eyebrow{display:inline-flex;align-items:center;gap:8px;height:30px;padding:0 14px;border-radius:999px;background:rgba(237,243,254,.92);color:var(--c-primary);font-size:13px;font-weight:600}
.cat-hero h1{margin-top:18px;font-size:clamp(30px,4.2vw,52px);line-height:1.15;font-weight:800}
.cat-hero-lead{margin-top:16px;font-size:17px;line-height:1.75;color:rgba(255,255,255,.86);max-width:720px}
.cat-hero-actions{margin-top:28px;display:flex;flex-wrap:wrap;gap:14px}

/* ---------- 数据面板 ---------- */
.stat-panel{display:grid;grid-template-columns:repeat(4,1fr);gap:24px;background:#fff;border:1px solid var(--c-line);border-radius:var(--r-big);padding:28px;box-shadow:var(--shadow-card);position:relative;overflow:hidden}
.stat-panel::before{content:"";position:absolute;top:0;left:0;right:0;height:2px;background:linear-gradient(90deg,rgba(37,230,196,.7),rgba(31,99,232,.6))}
.stat{padding-right:20px;border-right:1px dashed var(--c-line)}
.stat:last-child{border-right:0;padding-right:0}
.stat-num{display:block;font-size:28px;font-weight:700;line-height:1.2;color:var(--c-primary)}
.stat-label{display:block;margin-top:6px;font-size:13px;line-height:1.7;color:var(--c-text-2)}

/* ---------- 通用卡片网格 ---------- */
.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.scene-card{background:#fff;border:1px solid var(--c-line);border-radius:var(--r-card);padding:24px;box-shadow:var(--shadow-card);transition:transform .2s ease-out,box-shadow .2s ease-out,border-color .2s ease-out}
.scene-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover);border-color:#D7E3FA}
.tag{display:inline-flex;align-items:center;height:26px;padding:0 12px;border-radius:999px;background:var(--c-primary-050);color:var(--c-primary);font-size:12px;font-weight:600}
.scene-card h3{margin-top:14px;font-size:18px;line-height:1.5}
.scene-card p{margin-top:10px;font-size:14px;line-height:1.8;color:var(--c-text-2)}

/* ---------- 流程 ---------- */
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:24px}
.step{position:relative;background:#fff;border:1px solid var(--c-line);border-radius:var(--r-card);padding:24px;box-shadow:var(--shadow-card);overflow:hidden;transition:box-shadow .2s ease-out,transform .2s ease-out}
.step:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover)}
.step::after{content:"";position:absolute;left:0;right:0;bottom:0;height:2px;background:linear-gradient(90deg,rgba(37,230,196,.7),rgba(31,99,232,.5));transform:scaleX(0);transform-origin:left;transition:transform .25s ease-out}
.step:hover::after{transform:scaleX(1)}
.step-num{width:34px;height:34px;border-radius:999px;border:2px solid var(--c-primary);color:var(--c-primary);display:grid;place-items:center;font-size:14px;font-weight:800}
.step h3{margin-top:16px;font-size:17px;line-height:1.5}
.step p{margin-top:10px;font-size:14px;line-height:1.8;color:var(--c-text-2)}

/* ---------- 入口卡片网格 ---------- */
.entry-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.entry-card{display:flex;flex-direction:column;background:#fff;border:1px solid var(--c-line);border-radius:var(--r-card);overflow:hidden;box-shadow:var(--shadow-card);transition:transform .2s ease-out,box-shadow .2s ease-out,border-color .2s ease-out}
.entry-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover);border-color:#D7E3FA}
.entry-thumb{position:relative;aspect-ratio:16/9;overflow:hidden;background:linear-gradient(135deg,#EDF3FE,#F6F8FC)}
.entry-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .35s ease-out}
.entry-card:hover .entry-thumb img{transform:scale(1.03)}
.entry-badge{position:absolute;top:12px;left:12px;height:24px;display:inline-flex;align-items:center;padding:0 10px;border-radius:999px;background:rgba(10,20,36,.6);color:#fff;font-size:12px;backdrop-filter:blur(4px)}
.entry-body{display:flex;flex-direction:column;flex:1;gap:10px;padding:18px 18px 20px}
.entry-title{font-size:16px;font-weight:600;line-height:1.45;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;transition:color .18s ease-out}
.entry-card:hover .entry-title{color:var(--c-primary)}
.entry-desc{font-size:14px;line-height:1.7;color:var(--c-text-2);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.entry-meta{margin-top:auto;padding-top:12px;border-top:1px dashed var(--c-line);display:flex;align-items:center;justify-content:space-between;gap:10px;font-size:13px;color:var(--c-text-2)}
.entry-meta a{color:var(--c-primary);font-weight:600}
.entry-meta a:hover{text-decoration:underline;text-underline-offset:3px}
.grid-more{margin-top:36px;text-align:center}

/* ---------- FAQ ---------- */
.faq-wrap{max-width:860px;margin:0 auto;background:#fff;border:1px solid var(--c-line);border-radius:var(--r-card);box-shadow:var(--shadow-card);overflow:hidden}
.faq-item{position:relative;border-bottom:1px solid var(--c-line)}
.faq-item:last-child{border-bottom:0}
.faq-item::before{content:"";position:absolute;left:0;top:12px;bottom:12px;width:3px;border-radius:0 3px 3px 0;background:linear-gradient(180deg,var(--c-neon),rgba(31,99,232,.6));opacity:0;transition:opacity .2s ease-out}
.faq-item.is-open::before{opacity:1}
.faq-q{width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;min-height:54px;padding:14px 24px;text-align:left;font-size:16px;font-weight:600;color:var(--c-text);transition:color .18s ease-out,background-color .18s ease-out}
.faq-q:hover{color:var(--c-primary);background:#FBFCFE}
.faq-icon{position:relative;flex:0 0 auto;width:24px;height:24px;border-radius:999px;border:1px solid var(--c-primary);transition:background-color .2s ease-out}
.faq-icon::before,.faq-icon::after{content:"";position:absolute;left:50%;top:50%;background:var(--c-primary);transition:transform .2s ease-out,opacity .2s ease-out,background-color .2s ease-out}
.faq-icon::before{width:10px;height:1.5px;transform:translate(-50%,-50%)}
.faq-icon::after{width:1.5px;height:10px;transform:translate(-50%,-50%)}
.faq-item.is-open .faq-icon{background:var(--c-primary)}
.faq-item.is-open .faq-icon::before,.faq-item.is-open .faq-icon::after{background:#fff}
.faq-item.is-open .faq-icon::after{opacity:0;transform:translate(-50%,-50%) rotate(90deg)}
.faq-a{max-height:0;overflow:hidden;transition:max-height .28s ease-out}
.faq-a-inner{padding:0 24px 20px;font-size:15px;line-height:1.85;color:var(--c-text-2)}

/* ---------- CTA ---------- */
.cta-block{position:relative;background:linear-gradient(135deg,#EDF3FE,#FFFFFF 60%,#F6F8FC);border:1px solid var(--c-line);border-radius:var(--r-big);padding:48px 32px;text-align:center;box-shadow:var(--shadow-card);overflow:hidden}
.cta-block::before{content:"";position:absolute;top:0;left:0;right:0;height:3px;background:linear-gradient(90deg,rgba(37,230,196,.7),rgba(31,99,232,.6))}
.cta-block h2{font-size:clamp(22px,2.6vw,32px);line-height:1.3}
.cta-block p{margin:14px auto 0;max-width:640px;font-size:15px;line-height:1.85;color:var(--c-text-2)}
.cta-block .btn{margin-top:26px}
.cta-note{margin-top:14px;font-size:13px;color:var(--c-text-2)}

/* ---------- 页脚 ---------- */
.site-footer{position:relative;background:var(--c-ink);color:rgba(255,255,255,.72);padding-top:56px}
.site-footer::before{content:"";position:absolute;top:0;left:0;right:0;height:2px;background:linear-gradient(90deg,rgba(37,230,196,.75),rgba(31,99,232,.65))}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:40px;padding-bottom:40px}
.footer-brand{display:flex;align-items:center;gap:10px}
.footer-text{margin-top:16px;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}
.footer-links li{margin-bottom:10px}
.footer-links a{font-size:14px;color:rgba(255,255,255,.68);transition:color .18s ease-out,box-shadow .18s ease-out}
.footer-links a:hover{color:#fff;box-shadow:inset 0 -1px 0 rgba(37,230,196,.8)}
.footer-contact li{display:flex;align-items:flex-start;gap:10px;font-size:14px;line-height:1.8;color:rgba(255,255,255,.68);margin-bottom:12px}
.footer-contact i{margin-top:6px;color:var(--c-neon);font-size:13px}
.footer-bottom{display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:12px;padding:20px 0 28px;border-top:1px solid rgba(255,255,255,.08);font-size:13px;color:rgba(255,255,255,.55)}
.footer-bottom a{color:rgba(255,255,255,.72)}
.footer-bottom a:hover{color:#fff;text-decoration:underline;text-underline-offset:3px}

/* ---------- 移动吸底 ---------- */
.sticky-buy{display:none}
@media (max-width:767px){
  .sticky-buy{display:flex;align-items:center;justify-content:space-between;gap:12px;position:fixed;left:0;right:0;bottom:0;z-index:70;height:60px;padding:0 16px calc(env(safe-area-inset-bottom,0px));background:#fff;box-shadow:0 -6px 20px rgba(15,27,45,.12);border-top:1px solid var(--c-line)}
  .sticky-text{font-size:13px;color:var(--c-text-2);line-height:1.4}
  .site-footer{padding-bottom:78px}
}

/* ---------- 响应式 ---------- */
@media (max-width:1023px){
  .nav-desktop{display:none}
  .hamburger{display:flex}
  .header-actions .btn-sm{display:none}
  .entry-grid{grid-template-columns:repeat(2,1fr)}
  .grid-3{grid-template-columns:repeat(2,1fr)}
  .steps{grid-template-columns:repeat(2,1fr)}
  .stat-panel{grid-template-columns:repeat(2,1fr);gap:20px}
  .stat{border-right:0;padding-right:0}
  .footer-grid{grid-template-columns:repeat(2,1fr);gap:32px}
}
@media (max-width:767px){
  .container{padding-left:20px;padding-right:20px}
  .section{padding:56px 0}
  .section-head{flex-direction:column;align-items:flex-start;gap:12px;margin-bottom:24px}
  .cat-hero{padding-top:36px}
  .cat-hero-inner{padding-bottom:32px}
  .cat-hero::after{margin-top:32px}
  .entry-grid{grid-template-columns:1fr}
  .grid-3{grid-template-columns:1fr}
  .faq-q{padding:14px 18px}
  .faq-a-inner{padding:0 18px 18px}
  .cta-block{padding:36px 20px}
  .footer-grid{grid-template-columns:1fr;gap:28px}
  .footer-bottom{flex-direction:column;align-items:flex-start}
}
@media (max-width:639px){
  .steps{grid-template-columns:1fr}
  .stat-panel{grid-template-columns:1fr;padding:22px}
  .brand-sub{display:none}
}

/* roulang page: category2 */
:root{
  --c-ink:#0A1424;
  --c-ink-2:#111E33;
  --c-primary:#1F63E8;
  --c-primary-600:#1750C2;
  --c-primary-050:#EDF3FE;
  --c-neon:#25E6C4;
  --c-accent:#FF7A45;
  --c-text:#0F1B2D;
  --c-text-2:#5B6C87;
  --c-line:#E5EBF5;
  --c-bg:#F6F8FC;
  --r-card:16px;
  --r-lg:20px;
  --r-btn:10px;
  --r-pill:999px;
  --shadow-1:0 1px 2px rgba(15,27,45,.04),0 8px 24px rgba(15,27,45,.06);
  --shadow-2:0 12px 32px rgba(31,99,232,.14);
  --font: "PingFang SC","HarmonyOS Sans SC","Hiragino Sans GB","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  padding-top:64px;
  font-family:var(--font);
  font-size:16px;
  line-height:1.9;
  color:var(--c-text);
  background:var(--c-bg);
  overflow-x:hidden;
}
@media (max-width:640px){ body{padding-top:56px} }
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,opacity .18s ease-out}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer}
h1,h2,h3,h4{margin:0;letter-spacing:-.01em;line-height:1.3}
p{margin:0}
ul,ol{margin:0;padding:0;list-style:none}
:focus-visible{outline:2px solid var(--c-primary);outline-offset:2px}
.num{font-variant-numeric:tabular-nums}

/* ---------- 容器与板块 ---------- */
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 20px}
@media (min-width:1024px){ .container{padding:0 24px} }
.section{padding:64px 0}
@media (min-width:1024px){ .section{padding:88px 0} }
.section--tight{padding:48px 0}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:32px;flex-wrap:wrap}
.section-head h2{font-size:clamp(22px,2.6vw,32px);font-weight:700}
.section-head p{color:var(--c-text-2);font-size:15px;margin-top:10px;max-width:640px}
.section-note{font-size:14px;color:var(--c-text-2)}
.text-link{color:var(--c-primary);font-size:15px;font-weight:600;display:inline-flex;align-items:center;gap:6px}
.text-link:hover{color:var(--c-primary-600);text-decoration:underline}
.neon-line{height:2px;width:100%;background:linear-gradient(90deg,rgba(37,230,196,.7),rgba(31,99,232,.55));border-radius:999px}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:44px;padding:0 22px;border-radius:var(--r-btn);
  font-size:15px;font-weight:600;white-space:nowrap;
  transition:all .18s ease-out;
}
.btn-accent{background:var(--c-accent);color:#fff}
.btn-accent:hover{filter:brightness(1.08);transform:translateY(-1px);box-shadow:0 6px 16px rgba(255,122,69,.35)}
.btn-accent:active{transform:translateY(0);filter:brightness(.96)}
.btn-sm{height:38px;padding:0 16px;font-size:14px}
.btn-outline{background:#fff;border:1px solid var(--c-primary);color:var(--c-primary)}
.btn-outline:hover{background:var(--c-primary-050)}
.btn-ghost{background:#fff;border:1px solid var(--c-line);color:var(--c-primary)}
.btn-ghost:hover{border-color:var(--c-primary);background:var(--c-primary-050)}

/* ---------- 头部导航 ---------- */
.site-header{
  position:fixed;top:0;left:0;right:0;z-index:80;
  background:var(--c-ink);
  border-bottom:1px solid rgba(255,255,255,.08);
  transition:background .25s ease,box-shadow .25s ease;
}
.site-header::after{
  content:"";position:absolute;left:0;right:0;bottom:-1px;height:2px;
  background:linear-gradient(90deg,rgba(37,230,196,.7),rgba(31,99,232,.55));
}
.site-header.is-scrolled{background:rgba(10,20,36,.92);backdrop-filter:blur(8px);box-shadow:0 10px 28px rgba(10,20,36,.32)}
.header-inner{display:flex;align-items:center;justify-content:space-between;gap:16px;height:64px}
@media (max-width:640px){ .header-inner{height:56px} }
.brand{display:flex;align-items:center;gap:10px;white-space:nowrap}
.brand-mark{font-size:20px;font-weight:800;color:#fff;letter-spacing:.02em}
.brand-sep{width:1px;height:18px;background:rgba(255,255,255,.28)}
.brand-sub{font-size:13px;color:rgba(255,255,255,.72)}
@media (max-width:860px){ .brand-sub,.brand-sep{display:none} }
.nav-desktop{display:flex;align-items:center;gap:4px}
@media (max-width:1023px){ .nav-desktop{display:none} }
.nav-link{position:relative;padding:10px 14px;font-size:15px;color:rgba(255,255,255,.75);border-radius:8px}
.nav-link::after{
  content:"";position:absolute;left:14px;right:14px;bottom:4px;height:2px;
  background:linear-gradient(90deg,var(--c-neon),var(--c-primary));
  transform:scaleX(0);transform-origin:left;transition:transform .2s ease-out;
}
.nav-link:hover{color:#fff;background:rgba(255,255,255,.06)}
.nav-link:hover::after{transform:scaleX(1)}
.nav-link.is-active{color:#fff;text-shadow:0 0 12px rgba(37,230,196,.55)}
.nav-link.is-active::after{transform:scaleX(1)}
.header-actions{display:flex;align-items:center;gap:10px}
.icon-btn{
  width:36px;height:36px;border-radius:999px;display:flex;align-items:center;justify-content:center;
  color:#fff;border:1px solid rgba(255,255,255,.18);transition:all .18s ease-out;font-size:14px;
}
.icon-btn:hover{background:rgba(255,255,255,.12);border-color:rgba(37,230,196,.6)}
@media (max-width:860px){ .icon-btn{display:none} }
.hamburger{display:none;width:38px;height:38px;flex-direction:column;justify-content:center;align-items:center;gap:5px;border-radius:10px}
.hamburger span{display:block;width:20px;height:2px;background:#fff;border-radius:2px;transition:all .22s ease-out}
.hamburger.is-active span:nth-child(1){transform:translateY(7px) rotate(45deg)}
.hamburger.is-active span:nth-child(2){opacity:0}
.hamburger.is-active span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}
@media (max-width:1023px){ .hamburger{display:flex} }
.mobile-drawer{
  position:fixed;top:64px;left:0;right:0;bottom:0;z-index:70;
  background:rgba(10,20,36,.98);
  padding:24px 20px 40px;
  transform:translateY(-12px);opacity:0;pointer-events:none;
  transition:transform .25s ease-out,opacity .25s ease-out;
  display:flex;flex-direction:column;justify-content:space-between;
}
@media (max-width:640px){ .mobile-drawer{top:56px} }
.mobile-drawer.is-open{transform:translateY(0);opacity:1;pointer-events:auto}
.drawer-nav{display:flex;flex-direction:column;gap:6px}
.drawer-link{
  display:block;padding:14px 12px;font-size:17px;color:rgba(255,255,255,.78);
  border-radius:10px;border-left:3px solid transparent;
  opacity:0;transform:translateY(6px);
  transition:opacity .3s ease-out,transform .3s ease-out,background-color .18s ease-out;
}
.mobile-drawer.is-open .drawer-link{opacity:1;transform:translateY(0)}
.mobile-drawer.is-open .drawer-link:nth-child(1){transition-delay:.04s}
.mobile-drawer.is-open .drawer-link:nth-child(2){transition-delay:.08s}
.mobile-drawer.is-open .drawer-link:nth-child(3){transition-delay:.12s}
.drawer-link:hover{background:rgba(255,255,255,.08);color:#fff}
.drawer-link.is-active{color:#fff;background:rgba(37,230,196,.12);border-left-color:var(--c-neon);text-shadow:0 0 12px rgba(37,230,196,.5)}
.drawer-cta{width:100%;margin-top:24px}
body.drawer-open{overflow:hidden}

/* ---------- 分类页头部带 ---------- */
.page-hero{position:relative;overflow:hidden;background:var(--c-ink)}
.page-hero .hero-bg{
  position:absolute;inset:0;
  background-image:url('/assets/images/backpic/back-2.webp');
  background-size:cover;background-position:center;
  opacity:.55;
}
.page-hero .hero-mask{
  position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(10,20,36,.86) 0%,rgba(10,20,36,.7) 60%,rgba(10,20,36,.88) 100%);
}
.page-hero .hero-inner{position:relative;z-index:2;padding:52px 0 64px;min-height:300px}
.crumb{display:flex;align-items:center;gap:8px;font-size:14px;color:rgba(255,255,255,.6);flex-wrap:wrap}
.crumb a:hover{color:#fff}
.crumb .sep{opacity:.5}
.crumb .current{color:rgba(255,255,255,.92)}
.page-hero h1{
  color:#fff;font-size:clamp(28px,4vw,44px);font-weight:800;line-height:1.2;
  margin:20px 0 16px;max-width:820px;
}
.page-hero h1 .hl{
  background:linear-gradient(90deg,var(--c-neon),#7FD7FF);
  -webkit-background-clip:text;background-clip:text;color:transparent;
}
.page-lead{color:rgba(255,255,255,.78);font-size:17px;line-height:1.8;max-width:760px}
@media (min-width:1024px){ .page-lead{font-size:18px} }
.hero-stats{display:flex;flex-wrap:wrap;gap:32px;margin-top:32px}
.hero-stat .num{font-size:26px;font-weight:700;color:#fff}
.hero-stat span.label{display:block;font-size:13px;color:rgba(255,255,255,.62);margin-top:4px}

/* ---------- 分栏布局 ---------- */
.split-layout{display:grid;grid-template-columns:repeat(12,1fr);gap:24px;align-items:start}
.side-col{grid-column:span 4;position:sticky;top:88px}
.main-col{grid-column:span 8}
@media (max-width:1023px){
  .side-col,.main-col{grid-column:span 12}
  .side-col{position:static}
}
.side-card{
  background:#fff;border:1px solid var(--c-line);border-radius:var(--r-card);
  box-shadow:var(--shadow-1);padding:20px;overflow:hidden;position:relative;
}
.side-card::before{content:"";position:absolute;top:0;left:0;right:0;height:3px;background:linear-gradient(90deg,var(--c-neon),var(--c-primary))}
.side-title{font-size:14px;font-weight:700;color:var(--c-text-2);letter-spacing:.04em;margin:6px 0 14px}
.side-nav-list{display:flex;flex-direction:column;gap:6px}
.side-chip{
  display:block;padding:12px 14px;border-radius:10px;font-size:15px;color:var(--c-text-2);
  border-left:3px solid transparent;transition:all .18s ease-out;
}
.side-chip:hover{background:var(--c-primary-050);color:var(--c-primary)}
.side-chip.is-active{
  background:var(--c-primary-050);color:var(--c-primary);font-weight:600;
  border-left-color:var(--c-neon);
  box-shadow:0 0 0 1px rgba(31,99,232,.08) inset;
}
.side-tip{margin-top:20px;padding:16px;border-radius:12px;background:var(--c-primary-050);font-size:14px;color:var(--c-text-2);line-height:1.8}

/* ---------- 时间线清单 ---------- */
.tl-list{border-top:1px solid var(--c-line)}
.tl-item{
  display:grid;grid-template-columns:80px 1fr;gap:24px;
  padding:22px 16px;border-bottom:1px dashed var(--c-line);
  border-radius:12px;transition:background-color .18s ease-out;
}
.tl-item:hover{background:var(--c-primary-050)}
.tl-item:hover .tl-title{color:var(--c-primary)}
.tl-date{font-size:14px;color:var(--c-text-2);padding-top:4px}
.tl-title{font-size:17px;font-weight:600;line-height:1.5;transition:color .18s ease-out}
.tl-desc{
  margin-top:8px;font-size:14px;line-height:1.75;color:var(--c-text-2);
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.tag-row{display:flex;flex-wrap:wrap;gap:8px;margin-top:12px}
.tag{
  display:inline-flex;align-items:center;height:24px;padding:0 10px;border-radius:var(--r-pill);
  font-size:12px;color:var(--c-primary);background:var(--c-primary-050);
  border:1px solid rgba(31,99,232,.14);
}
@media (max-width:767px){
  .tl-item{grid-template-columns:1fr;gap:8px;padding:18px 12px}
  .tl-date{padding-top:0}
}
.tl-more{margin-top:32px;text-align:center}

/* ---------- 步骤 / 属性面板 ---------- */
.step-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px}
@media (max-width:1023px){ .step-grid{grid-template-columns:repeat(2,1fr)} }
@media (max-width:560px){ .step-grid{grid-template-columns:1fr} }
.step-card{
  background:#fff;border:1px solid var(--c-line);border-radius:var(--r-card);
  padding:24px;box-shadow:var(--shadow-1);transition:transform .18s ease-out,box-shadow .18s ease-out;
}
.step-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-2)}
.step-num{
  width:42px;height:42px;border-radius:999px;display:flex;align-items:center;justify-content:center;
  border:2px solid rgba(31,99,232,.35);color:var(--c-primary);font-weight:700;font-size:15px;margin-bottom:16px;
}
.step-card h3{font-size:18px;font-weight:600;margin-bottom:10px}
.step-card p{font-size:14px;line-height:1.8;color:var(--c-text-2)}

/* ---------- 图文块 ---------- */
.media-block{
  display:grid;grid-template-columns:5fr 7fr;gap:32px;align-items:center;
  background:#fff;border:1px solid var(--c-line);border-radius:var(--r-lg);
  padding:24px;box-shadow:var(--shadow-1);
}
@media (max-width:900px){ .media-block{grid-template-columns:1fr;padding:20px} }
.media-figure{
  border-radius:var(--r-card);overflow:hidden;
  background:linear-gradient(135deg,#EDF3FE,#F6F8FC);
  aspect-ratio:4/3;
}
.media-figure img{width:100%;height:100%;object-fit:cover}
.media-body h2{font-size:clamp(20px,2.4vw,28px);font-weight:700;margin-bottom:14px}
.media-body p{font-size:15px;line-height:1.85;color:var(--c-text-2)}
.check-list{margin-top:20px;display:flex;flex-direction:column;gap:12px}
.check-list li{display:flex;gap:10px;font-size:15px;color:var(--c-text);line-height:1.7}
.check-list i{color:var(--c-neon);margin-top:6px;font-size:13px}

/* ---------- FAQ ---------- */
.faq-wrap{
  max-width:860px;margin:0 auto;background:#fff;border:1px solid var(--c-line);
  border-radius:var(--r-card);box-shadow:var(--shadow-1);overflow:hidden;
}
.faq-item + .faq-item{border-top:1px solid var(--c-line)}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;
  min-height:54px;padding:12px 20px;font-size:16px;font-weight:600;text-align:left;
  transition:color .18s ease-out;
}
.faq-q:hover{color:var(--c-primary)}
.faq-toggle{
  flex:none;width:24px;height:24px;border-radius:999px;border:1px solid var(--c-primary);
  color:var(--c-primary);display:flex;align-items:center;justify-content:center;
  font-size:14px;line-height:1;transition:all .18s ease-out;
}
.faq-item.is-open .faq-toggle{background:var(--c-primary);color:#fff}
.faq-a{max-height:0;overflow:hidden;transition:max-height .3s ease}
.faq-a-inner{padding:0 20px 20px 23px;border-left:3px solid var(--c-neon);margin-left:20px;font-size:15px;line-height:1.85;color:var(--c-text-2)}
.faq-item.is-open .faq-q{color:var(--c-primary)}

/* ---------- CTA ---------- */
.cta-band{
  background:linear-gradient(135deg,#EDF3FE 0%,#F6F8FC 100%);
  border:1px solid var(--c-line);border-radius:var(--r-lg);
  padding:48px 24px;text-align:center;box-shadow:var(--shadow-1);
}
.cta-band h2{font-size:clamp(22px,2.6vw,30px);font-weight:700;margin-bottom:14px}
.cta-band p{color:var(--c-text-2);font-size:15px;max-width:620px;margin:0 auto 24px}
.cta-actions{display:flex;gap:14px;justify-content:center;flex-wrap:wrap}
.cta-note{margin-top:16px;font-size:13px;color:var(--c-text-2)}

/* ---------- 页脚 ---------- */
.site-footer{
  position:relative;background:var(--c-ink);color:rgba(255,255,255,.68);
  padding:56px 0 24px;margin-top:88px;
}
.site-footer::before{
  content:"";position:absolute;top:0;left:0;right:0;height:2px;
  background:linear-gradient(90deg,var(--c-neon),var(--c-primary));
}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:32px}
@media (max-width:1023px){ .footer-grid{grid-template-columns:1fr 1fr} }
@media (max-width:640px){ .footer-grid{grid-template-columns:1fr;gap:28px} }
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:14px}
.footer-brand .brand-mark{font-size:18px}
.footer-text{font-size:14px;line-height:1.85;color:rgba(255,255,255,.68);max-width:340px}
.footer-title{font-size:14px;font-weight:700;color:#fff;margin-bottom:16px}
.footer-links li + li,.footer-contact li + li{margin-top:10px}
.footer-links a{font-size:14px;color:rgba(255,255,255,.68);border-bottom:1px solid transparent;padding-bottom:2px}
.footer-links a:hover{color:#fff;border-bottom-color:var(--c-neon)}
.footer-contact li{display:flex;gap:10px;font-size:14px;align-items:flex-start;line-height:1.7}
.footer-contact i{color:var(--c-neon);margin-top:5px;font-size:13px}
.footer-bottom{
  margin-top:40px;padding-top:20px;border-top:1px solid rgba(255,255,255,.1);
  display:flex;flex-wrap:wrap;gap:12px 24px;justify-content:space-between;
  font-size:13px;color:rgba(255,255,255,.5);
}
.footer-bottom a{color:rgba(255,255,255,.6)}
.footer-bottom a:hover{color:#fff}

@media (max-width:640px){
  .section{padding:56px 0}
  .section-head{margin-bottom:24px}
}