/* roulang page: index */
:root{
    --c-bg:#070B1A;
    --c-bg-2:#0A1024;
    --c-surface:#0E1533;
    --c-surface-2:#121A3D;
    --c-line:rgba(255,255,255,.08);
    --c-primary:#3B5BFF;
    --c-accent:#34E3C4;
    --c-highlight:#FFB648;
    --c-text:#EAEEFB;
    --c-text-2:#A8B4D8;
    --c-text-3:#7C88A8;
    --c-nav:#FFFFFF;
    --c-nav-line:#E8EBF3;
    --c-ink:#131A33;
    --radius-card:16px;
    --radius-glass:20px;
    --radius-sm:12px;
    --shadow-card:0 10px 30px rgba(3,6,20,.5);
    --shadow-card-hover:0 18px 44px rgba(3,6,20,.62);
    --container:1240px;
  }

  *,*::before,*::after{box-sizing:border-box}
  html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
  .site-body{
    margin:0;
    background:var(--c-bg);
    color:var(--c-text);
    font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans SC",sans-serif;
    font-size:16px;
    line-height:1.9;
    -webkit-font-smoothing:antialiased;
    overflow-x:hidden;
  }
  .site-body img{max-width:100%;display:block}
  .site-body a{color:inherit;text-decoration:none}
  .site-body button{font:inherit;color:inherit;background:none;border:0;cursor:pointer;padding:0}
  .site-body ul,.site-body ol{list-style:none;margin:0;padding:0}
  .site-body h1,.site-body h2,.site-body h3,.site-body h4,.site-body p{margin:0}
  .site-body :focus-visible{outline:2px solid var(--c-accent);outline-offset:2px;border-radius:4px}

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

  .num{font-variant-numeric:tabular-nums;font-feature-settings:"tnum"}

  /* ---------- Header / Nav ---------- */
  .site-header{
    position:sticky;top:0;z-index:50;background:#fff;
    border-bottom:1px solid var(--c-nav-line);
    box-shadow:0 1px 2px rgba(16,24,40,.04);
    transition:box-shadow .2s ease-out;
  }
  .site-header.is-scrolled{box-shadow:0 6px 18px rgba(16,24,40,.08)}
  .nav-wrap{display:flex;align-items:center;gap:20px;height:68px}
  .brand{display:flex;align-items:center;gap:10px;flex-shrink:0}
  .brand svg{width:30px;height:30px;flex-shrink:0}
  .brand-text{font-size:18px;font-weight:700;color:var(--c-ink);letter-spacing:-.01em;white-space:nowrap}
  .nav-links{display:none;align-items:center;gap:4px;flex:1}
  .nav-links a{
    position:relative;padding:8px 12px;font-size:15px;font-weight:500;color:var(--c-ink);
    border-radius:8px;transition:color .18s ease-out;white-space:nowrap;
  }
  .nav-links a::after{
    content:"";position:absolute;left:12px;right:12px;bottom:2px;height:2px;border-radius:2px;
    background:linear-gradient(90deg,var(--c-primary),var(--c-accent));
    transform:scaleX(0);transform-origin:left;transition:transform .18s ease-out;
  }
  .nav-links a:hover{color:var(--c-primary)}
  .nav-links a:hover::after{transform:scaleX(1)}
  .nav-links a[aria-current="page"]{color:var(--c-primary)}
  .nav-links a[aria-current="page"]::after{transform:scaleX(1)}
  .nav-right{display:flex;align-items:center;gap:12px;margin-left:auto}
  .search-box{
    display:none;align-items:center;gap:8px;height:42px;padding:0 16px;border-radius:999px;
    background:#F4F6FB;border:1px solid transparent;transition:all .18s ease-out;
  }
  .search-box:focus-within{background:#fff;border-color:var(--c-primary);box-shadow:0 0 0 3px rgba(59,91,255,.14)}
  .search-box svg{width:16px;height:16px;color:#8A93AC;flex-shrink:0}
  .search-box input{border:0;background:transparent;outline:none;font-size:14px;color:var(--c-ink);width:150px}
  .search-box input::placeholder{color:#98A2B8}

  .btn{
    display:inline-flex;align-items:center;justify-content:center;gap:8px;
    height:46px;padding:0 26px;border-radius:999px;font-size:15px;font-weight:600;
    transition:transform .18s ease-out,box-shadow .18s ease-out,background .18s ease-out,border-color .18s ease-out,filter .18s ease-out;
    cursor:pointer;white-space:nowrap;
  }
  .btn-primary{
    background:linear-gradient(100deg,#3B5BFF,#34E3C4);color:#fff;
    box-shadow:0 6px 18px rgba(59,91,255,.35);
  }
  .btn-primary:hover{transform:translateY(-1px);box-shadow:0 10px 28px rgba(59,91,255,.5);filter:brightness(1.06)}
  .btn-primary:active{transform:translateY(0) scale(.99)}
  .btn-ghost{
    background:transparent;color:var(--c-text);border:1px solid rgba(255,255,255,.22);
    backdrop-filter:blur(8px);-webkit-backdrop-filter:blur(8px);
  }
  .btn-ghost:hover{border-color:var(--c-accent);background:rgba(52,227,196,.10)}
  .btn-sm{height:40px;padding:0 20px;font-size:14px}
  .btn-block{width:100%}
  .btn-nav{background:linear-gradient(100deg,#3B5BFF,#34E3C4);color:#fff;box-shadow:0 4px 14px rgba(59,91,255,.28)}
  .btn-nav:hover{transform:translateY(-1px);box-shadow:0 8px 22px rgba(59,91,255,.42)}

  .nav-toggle{display:inline-flex;align-items:center;justify-content:center;width:44px;height:44px;border-radius:12px;border:1px solid var(--c-nav-line)}
  .nav-toggle svg{width:20px;height:20px;color:var(--c-ink)}
  .mobile-drawer{
    display:none;background:#fff;border-top:1px solid #EEF1F7;
    padding:8px 0 20px;
  }
  .mobile-drawer.is-open{display:block}
  .mobile-drawer a{
    display:flex;align-items:center;min-height:44px;padding:0 20px;font-size:15px;font-weight:500;color:var(--c-ink);
    border-bottom:1px solid #EEF1F7;
  }
  .mobile-drawer a:hover,.mobile-drawer a[aria-current="page"]{color:var(--c-primary)}
  .mobile-drawer .drawer-cta{margin:16px 20px 0;padding:0;border:0}

  @media (min-width:1024px){
    .nav-links{display:flex}
    .search-box{display:flex}
    .nav-toggle{display:none}
  }
  @media (max-width:420px){
    .brand-text{font-size:16px}
  }

  .nav-fade{height:32px;background:linear-gradient(180deg,#FFFFFF 0%,#F7F9FF 18%,#0B1128 100%)}

  /* ---------- Hero ---------- */
  .hero{position:relative;overflow:hidden;background:var(--c-bg);min-height:520px;display:flex;align-items:center}
  @media (min-width:768px){.hero{min-height:600px}}
  .hero-bg{
    position:absolute;inset:0;background-size:cover;background-position:center right;
    opacity:.55;
  }
  .hero-mask{
    position:absolute;inset:0;
    background:linear-gradient(90deg,rgba(7,11,26,.97) 0%,rgba(7,11,26,.9) 38%,rgba(7,11,26,.55) 70%,rgba(7,11,26,.35) 100%),
               linear-gradient(180deg,rgba(7,11,26,.2) 0%,rgba(7,11,26,.92) 100%);
  }
  .hero-stars,.hero-stars::after{
    position:absolute;inset:0;pointer-events:none;
    background-image:radial-gradient(1.5px 1.5px at 12% 22%,rgba(255,255,255,.75),transparent 60%),
                     radial-gradient(1.5px 1.5px at 28% 68%,rgba(255,255,255,.5),transparent 60%),
                     radial-gradient(1.5px 1.5px at 46% 34%,rgba(52,227,196,.7),transparent 60%),
                     radial-gradient(1.5px 1.5px at 68% 18%,rgba(255,255,255,.55),transparent 60%),
                     radial-gradient(1.5px 1.5px at 82% 58%,rgba(255,255,255,.45),transparent 60%),
                     radial-gradient(1.5px 1.5px at 92% 82%,rgba(59,91,255,.8),transparent 60%);
    opacity:.9;
  }
  .hero-arc{
    position:absolute;right:-180px;top:-120px;width:820px;height:820px;border-radius:50%;
    border:1px solid rgba(59,91,255,.35);
    box-shadow:inset 0 0 120px rgba(59,91,255,.18);
    transform:rotate(-18deg);pointer-events:none;
  }
  .hero-arc::after{
    content:"";position:absolute;inset:90px;border-radius:50%;
    border:1px dashed rgba(52,227,196,.22);
  }
  @media (max-width:767px){.hero-arc{width:520px;height:520px;right:-220px;top:-80px}}
  .hero-inner{position:relative;z-index:2;padding:72px 0 64px}
  @media (min-width:768px){.hero-inner{padding:96px 0 80px}}
  .hero-eyebrow{
    display:inline-flex;align-items:center;gap:8px;height:28px;padding:0 14px;border-radius:999px;
    background:rgba(52,227,196,.12);color:var(--c-accent);font-size:13px;font-weight:500;letter-spacing:.02em;
  }
  .hero-title{
    margin-top:20px;font-size:clamp(30px,4.6vw,54px);line-height:1.2;font-weight:700;
    letter-spacing:-.02em;color:#fff;max-width:800px;
  }
  .hero-sub{
    margin-top:18px;max-width:640px;font-size:17px;line-height:1.85;color:var(--c-text-2);
  }
  @media (min-width:768px){.hero-sub{font-size:19px}}
  .hero-actions{display:flex;flex-direction:column;gap:12px;margin-top:32px;max-width:320px}
  @media (min-width:640px){.hero-actions{flex-direction:row;max-width:none}}
  .hero-stats{
    margin-top:44px;display:grid;grid-template-columns:repeat(2,1fr);gap:18px;
    padding:20px;border-radius:var(--radius-glass);
    background:rgba(255,255,255,.05);border:1px solid rgba(255,255,255,.12);
    border-top-color:rgba(255,255,255,.2);
    backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);
  }
  @media (min-width:768px){.hero-stats{grid-template-columns:repeat(4,1fr);padding:24px 28px;gap:24px}}
  .stat-num{font-size:28px;font-weight:700;color:#fff;line-height:1.2}
  @media (min-width:768px){.stat-num{font-size:34px}}
  .stat-label{margin-top:4px;font-size:13px;color:var(--c-text-2)}

  /* ---------- Sections ---------- */
  .section{padding:56px 0}
  @media (min-width:768px){.section{padding:96px 0}}
  .section-alt{background:var(--c-bg-2)}
  .section-head{max-width:760px}
  .section-head h2{
    font-size:clamp(24px,3vw,34px);line-height:1.3;font-weight:700;letter-spacing:-.01em;color:var(--c-text);
  }
  .section-head p{margin-top:14px;font-size:16px;color:var(--c-text-2);line-height:1.9}
  .section-head-row{display:flex;flex-direction:column;gap:16px;margin-bottom:36px}
  @media (min-width:768px){.section-head-row{flex-direction:row;align-items:flex-end;justify-content:space-between;margin-bottom:48px}}
  .text-link{
    display:inline-flex;align-items:center;gap:6px;color:var(--c-accent);font-size:15px;font-weight:600;
    transition:gap .18s ease-out;
  }
  .text-link:hover{gap:12px}
  .text-link svg{width:16px;height:16px}

  /* ---------- Compare table ---------- */
  .compare-card{
    border:1px solid var(--c-line);border-radius:var(--radius-card);background:var(--c-surface);
    box-shadow:var(--shadow-card);overflow:hidden;
  }
  .compare-scroll{overflow-x:auto;-webkit-overflow-scrolling:touch}
  .compare-table{border-collapse:collapse;width:100%;min-width:780px}
  .compare-table th,.compare-table td{
    padding:16px 20px;text-align:left;font-size:14px;border-bottom:1px solid rgba(255,255,255,.06);
  }
  .compare-table thead th{
    background:var(--c-surface-2);font-size:14px;font-weight:600;color:var(--c-text);vertical-align:top;
  }
  .compare-table tbody tr:nth-child(odd) td{background:#0B1229}
  .compare-table tbody tr:nth-child(even) td{background:#0E1533}
  .compare-table tbody tr:hover td{background:#111A3C}
  .compare-table th:first-child,.compare-table td:first-child{
    position:sticky;left:0;z-index:2;min-width:180px;color:var(--c-text-2);font-weight:500;
    box-shadow:1px 0 0 rgba(255,255,255,.06);
  }
  .compare-table thead th:first-child{background:var(--c-surface-2);color:var(--c-text-3);font-weight:600}
  .compare-table tbody td:first-child{background:#0B1229}
  .compare-table tbody tr:nth-child(even) td:first-child{background:#0E1533}
  .plan-head{display:flex;flex-direction:column;gap:6px}
  .plan-name{font-size:16px;font-weight:700;color:#fff}
  .plan-price{font-size:20px;font-weight:700;color:var(--c-accent)}
  .plan-note{font-size:12.5px;font-weight:400;color:var(--c-text-3);line-height:1.7}
  .col-reco{position:relative}
  .col-reco::before{
    content:"";position:absolute;top:0;left:0;right:0;height:2px;
    background:linear-gradient(90deg,var(--c-primary),var(--c-accent));
  }
  .compare-table tbody td.col-reco{background:rgba(59,91,255,.09)}
  .compare-table tbody tr:nth-child(odd) td.col-reco{background:rgba(59,91,255,.09)}
  .badge{
    display:inline-flex;align-items:center;height:24px;padding:0 12px;border-radius:999px;
    font-size:13px;font-weight:500;white-space:nowrap;
  }
  .badge-accent{background:rgba(52,227,196,.12);color:var(--c-accent)}
  .badge-gold{background:rgba(255,182,72,.14);color:var(--c-highlight)}
  .badge-muted{background:rgba(255,255,255,.08);color:var(--c-text-2)}
  .badge-primary{background:rgba(59,91,255,.18);color:#9DB1FF}
  .check{color:var(--c-accent);font-weight:600}
  .dash{color:#4A5578}
  .plan-cta{padding:16px 20px}

  /* ---------- Level cards ---------- */
  .grid-level{margin-top:12px}
  .level-card{
    display:flex;flex-direction:column;gap:14px;padding:28px 24px;border-radius:var(--radius-glass);
    background:rgba(255,255,255,.045);border:1px solid rgba(255,255,255,.10);
    border-top-color:rgba(255,255,255,.18);
    backdrop-filter:blur(10px);-webkit-backdrop-filter:blur(10px);
    transition:transform .2s ease-out,box-shadow .2s ease-out,border-color .2s ease-out;
    height:100%;
  }
  .level-card:hover{transform:translateY(-4px);border-color:rgba(59,91,255,.6);box-shadow:0 18px 44px rgba(3,6,20,.55)}
  .level-card.is-featured{
    border-color:rgba(52,227,196,.35);
    box-shadow:0 0 0 1px rgba(52,227,196,.14),0 20px 50px rgba(4,10,32,.7);
  }
  @media (min-width:1024px){.level-card.is-featured{transform:scale(1.05)}.level-card.is-featured:hover{transform:scale(1.05) translateY(-4px)}}
  .level-badge{display:flex;align-items:center;gap:12px}
  .level-badge svg{width:36px;height:36px}
  .level-name{font-size:20px;font-weight:700;color:#fff}
  .level-desc{font-size:14px;color:var(--c-text-2);line-height:1.8}
  .level-list{display:flex;flex-direction:column;gap:10px;margin:6px 0 0}
  .level-list li{display:flex;gap:10px;font-size:14.5px;color:var(--c-text-2);line-height:1.75}
  .level-list svg{width:16px;height:16px;color:var(--c-accent);flex-shrink:0;margin-top:6px}
  .level-cond{margin-top:auto;padding-top:14px;border-top:1px solid rgba(255,255,255,.08);font-size:13px;color:var(--c-text-3)}

  /* ---------- Content preview ---------- */
  .filter-row{display:flex;flex-wrap:wrap;gap:8px;margin-top:18px}
  .filter-chip{
    height:32px;padding:0 16px;border-radius:999px;font-size:13.5px;color:var(--c-text-2);
    background:rgba(255,255,255,.05);border:1px solid rgba(255,255,255,.10);
    display:inline-flex;align-items:center;transition:all .18s ease-out;
  }
  .filter-chip:hover{color:#fff;border-color:rgba(52,227,196,.5)}
  .filter-chip.is-active{background:rgba(52,227,196,.14);border-color:rgba(52,227,196,.45);color:var(--c-accent)}
  .content-card{
    display:flex;flex-direction:column;background:var(--c-surface);border:1px solid var(--c-line);
    border-radius:var(--radius-card);overflow:hidden;box-shadow:var(--shadow-card);
    transition:transform .2s ease-out,box-shadow .2s ease-out,border-color .2s ease-out;height:100%;
  }
  .content-card:hover{transform:translateY(-4px);border-color:rgba(59,91,255,.55);box-shadow:var(--shadow-card-hover)}
  .cover-wrap{position:relative;aspect-ratio:16/9;overflow:hidden;background:#0B1128}
  .cover-wrap img{width:100%;height:100%;object-fit:cover;transition:transform .3s ease-out}
  .content-card:hover .cover-wrap img{transform:scale(1.04)}
  .cover-badge{position:absolute;top:12px;left:12px;z-index:2}
  .cover-meta{
    position:absolute;right:12px;bottom:12px;z-index:2;font-size:12.5px;color:#DDE4FA;
    background:rgba(7,11,26,.7);border-radius:999px;padding:3px 10px;backdrop-filter:blur(6px);
  }
  .lock-veil{
    position:absolute;inset:0;z-index:3;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:10px;
    background:rgba(7,11,26,.72);transition:background .2s ease-out;
  }
  .lock-veil svg{width:24px;height:24px;color:#fff;opacity:.9}
  .lock-veil .preview-btn{
    opacity:0;transform:translateY(6px);transition:all .2s ease-out;
    height:34px;padding:0 18px;border-radius:999px;font-size:13px;font-weight:600;color:#fff;
    background:linear-gradient(100deg,#3B5BFF,#34E3C4);
  }
  .content-card:hover .lock-veil{background:rgba(7,11,26,.42)}
  .content-card:hover .lock-veil .preview-btn{opacity:1;transform:translateY(0)}
  .card-body{padding:18px 20px 20px;display:flex;flex-direction:column;gap:8px;flex:1}
  .card-title{font-size:16.5px;font-weight:600;color:var(--c-text);line-height:1.55}
  .card-text{font-size:14px;color:var(--c-text-2);line-height:1.8}

  /* ---------- News / CMS list ---------- */
  .news-grid{display:grid;gap:20px}
  @media (min-width:1024px){.news-grid{grid-template-columns:1.05fr 1fr;gap:24px}}
  .news-main{
    display:flex;flex-direction:column;background:var(--c-surface);border:1px solid var(--c-line);
    border-radius:var(--radius-card);overflow:hidden;box-shadow:var(--shadow-card);
    transition:transform .2s ease-out,border-color .2s ease-out,box-shadow .2s ease-out;
  }
  .news-main:hover{transform:translateY(-2px);border-color:rgba(59,91,255,.55);box-shadow:var(--shadow-card-hover)}
  .news-main .cover-wrap{aspect-ratio:16/9}
  .news-side{display:flex;flex-direction:column;gap:14px}
  .news-row{
    display:flex;gap:14px;padding:14px;border-radius:var(--radius-card);background:var(--c-surface);
    border:1px solid var(--c-line);transition:transform .2s ease-out,border-color .2s ease-out,box-shadow .2s ease-out;
  }
  .news-row:hover{transform:translateY(-2px);border-color:rgba(59,91,255,.55);box-shadow:0 14px 34px rgba(3,6,20,.55)}
  .news-thumb{width:112px;height:76px;border-radius:12px;object-fit:cover;flex-shrink:0;background:#0B1128}
  @media (max-width:520px){.news-thumb{width:88px;height:64px}}
  .news-body{display:flex;flex-direction:column;gap:6px;min-width:0;flex:1}
  .news-title{
    font-size:15.5px;font-weight:600;color:var(--c-text);line-height:1.55;
    display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
  }
  .news-sum{
    font-size:14px;color:var(--c-text-2);line-height:1.8;
    display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
  }
  .news-meta{display:flex;align-items:center;gap:10px;flex-wrap:wrap;margin-top:auto}
  .news-time{font-size:13px;color:var(--c-text-3);transition:color .18s ease-out}
  .news-row:hover .news-time,.news-main:hover .news-time{color:var(--c-accent)}
  .empty-state{
    display:flex;flex-direction:column;align-items:center;justify-content:center;gap:16px;text-align:center;
    padding:56px 24px;border:1px dashed rgba(255,255,255,.14);border-radius:var(--radius-card);background:var(--c-surface);
  }
  .empty-state svg{width:44px;height:44px;color:var(--c-text-3)}
  .empty-state p{font-size:15px;color:var(--c-text-2)}
  .line-clamp-2{display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}

  /* ---------- FAQ ---------- */
  .faq-list{border-top:1px solid rgba(255,255,255,.08)}
  .faq-item{border-bottom:1px solid rgba(255,255,255,.08)}
  .faq-q{
    position:relative;width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;
    padding:20px 8px 20px 18px;text-align:left;font-size:16.5px;font-weight:600;color:#fff;line-height:1.6;
    transition:color .18s ease-out;
  }
  .faq-q::before{
    content:"";position:absolute;left:0;top:16px;bottom:16px;width:3px;border-radius:3px;
    background:var(--c-accent);transform:scaleY(0);transform-origin:top;transition:transform .2s ease-out;
  }
  .faq-item.is-open .faq-q::before{transform:scaleY(1)}
  .faq-q:hover{color:var(--c-accent)}
  .faq-icon{
    width:26px;height:26px;flex-shrink:0;border-radius:50%;border:1px solid rgba(255,255,255,.18);
    display:inline-flex;align-items:center;justify-content:center;transition:transform .2s ease-out,background .2s ease-out;
  }
  .faq-icon svg{width:13px;height:13px;color:var(--c-text-2)}
  .faq-item.is-open .faq-icon{transform:rotate(135deg);background:rgba(52,227,196,.14);border-color:rgba(52,227,196,.5)}
  .faq-a{
    max-height:0;overflow:hidden;transition:max-height .28s ease-out;
  }
  .faq-a p{padding:0 40px 22px 18px;font-size:15.5px;color:var(--c-text-2);line-height:1.9}

  /* ---------- CTA band ---------- */
  .cta-band{position:relative;overflow:hidden;background:#05080F;padding:64px 0}
  @media (min-width:768px){.cta-band{padding:96px 0}}
  .cta-band::before{
    content:"";position:absolute;left:50%;top:-40%;width:900px;height:900px;transform:translateX(-50%);
    background:radial-gradient(circle,rgba(59,91,255,.34) 0%,rgba(52,227,196,.12) 38%,transparent 68%);
    pointer-events:none;
  }
  .cta-band::after{
    content:"";position:absolute;inset:0;pointer-events:none;opacity:.35;
    background-image:linear-gradient(rgba(255,255,255,.05) 1px,transparent 1px),
                     linear-gradient(90deg,rgba(255,255,255,.05) 1px,transparent 1px);
    background-size:64px 64px;
  }
  .cta-inner{position:relative;z-index:2;max-width:760px;margin:0 auto;text-align:center}
  .cta-inner h2{font-size:clamp(24px,3vw,34px);font-weight:700;line-height:1.3;color:#fff}
  .cta-inner p{margin-top:16px;font-size:16px;color:var(--c-text-2);line-height:1.9}
  .cta-actions{display:flex;flex-direction:column;gap:12px;margin-top:32px;justify-content:center}
  @media (min-width:640px){.cta-actions{flex-direction:row}}
  .cta-note{margin-top:22px;font-size:13.5px;color:var(--c-text-3)}

  /* ---------- Footer ---------- */
  .site-footer{background:#05080F;border-top:1px solid rgba(255,255,255,.06);padding:56px 0 0}
  .footer-grid{display:grid;gap:32px}
  @media (min-width:640px){.footer-grid{grid-template-columns:repeat(2,1fr)}}
  @media (min-width:1024px){.footer-grid{grid-template-columns:1.4fr 1fr 1fr 1fr;gap:40px}}
  .footer-brand{display:flex;align-items:center;gap:10px}
  .footer-brand svg{width:28px;height:28px}
  .footer-brand span{font-size:17px;font-weight:700;color:#fff}
  .footer-desc{margin-top:16px;font-size:14px;color:var(--c-text-3);line-height:1.9;max-width:320px}
  .footer-contact{margin-top:16px;font-size:14px;color:var(--c-text-2)}
  .footer-col h3{font-size:14px;font-weight:600;color:#fff;margin-bottom:14px;letter-spacing:.02em}
  .footer-col li{margin-bottom:10px}
  .footer-col a{font-size:14px;color:var(--c-text-3);transition:color .18s ease-out}
  .footer-col a:hover{color:var(--c-accent)}
  .footer-bottom{
    margin-top:48px;border-top:1px solid rgba(255,255,255,.06);padding:20px 0;
    display:flex;flex-direction:column;gap:8px;font-size:13px;color:var(--c-text-3);
  }
  @media (min-width:768px){.footer-bottom{flex-direction:row;align-items:center;justify-content:space-between}}
  .footer-bottom a:hover{color:var(--c-accent)}

  @media (prefers-reduced-motion:reduce){
    *{animation:none !important;transition:none !important;scroll-behavior:auto !important}
  }

/* roulang page: article */
:root{
  --c-bg:#070B1A;
  --c-bg-2:#0A1024;
  --c-surface:#0E1533;
  --c-surface-2:#121A3D;
  --c-line:rgba(255,255,255,.08);
  --c-line-strong:rgba(255,255,255,.18);
  --c-primary:#3B5BFF;
  --c-accent:#34E3C4;
  --c-highlight:#FFB648;
  --c-text:#EAEEFB;
  --c-text-2:#A8B4D8;
  --c-text-3:#7C88A8;
  --c-nav:#FFFFFF;
  --c-nav-line:#E8EBF3;
  --c-nav-text:#131A33;
  --r-card:16px;
  --r-glass:20px;
  --r-sm:12px;
  --r-pill:999px;
  --shadow-card:0 10px 30px rgba(3,6,20,.5);
  --shadow-card-hover:0 18px 44px rgba(3,6,20,.66);
  --ease:cubic-bezier(.2,.7,.3,1);
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  font-family:-apple-system,"PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;
  background:var(--c-bg);
  color:var(--c-text);
  font-size:16px;
  line-height:1.9;
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}
a{color:inherit;text-decoration:none}
img{max-width:100%;display:block}
button{font:inherit;cursor:pointer;border:0;background:none;color:inherit}
input,select,textarea{font:inherit}
ul,ol{margin:0;padding:0}
:focus-visible{outline:2px solid var(--c-accent);outline-offset:2px;border-radius:6px}
.container{width:100%;max-width:1240px;margin:0 auto;padding:0 20px}
@media (min-width:768px){.container{padding:0 32px}}

/* ============ 导航 ============ */
.nav-shell{
  position:sticky;top:0;z-index:50;
  background:var(--c-nav);
  border-bottom:1px solid var(--c-nav-line);
  box-shadow:0 1px 2px rgba(16,24,40,.04);
  transition:box-shadow .2s var(--ease);
}
.nav-shell.is-scrolled{box-shadow:0 6px 18px rgba(16,24,40,.08)}
.nav-inner{display:flex;align-items:center;gap:20px;height:68px}
.brand{display:flex;align-items:center;gap:10px;flex:0 0 auto}
.brand svg{width:30px;height:30px;flex:0 0 auto}
.brand span{font-size:18px;font-weight:700;color:var(--c-nav-text);letter-spacing:-.01em}
.nav-links{display:flex;align-items:center;gap:24px;margin-left:12px}
.nav-links a{
  position:relative;font-size:15px;font-weight:500;color:var(--c-nav-text);
  padding:8px 0;transition:color .18s var(--ease);white-space:nowrap;
}
.nav-links a::after{
  content:"";position:absolute;left:0;bottom:2px;height:2px;width:0;
  background:linear-gradient(90deg,var(--c-primary),var(--c-accent));
  border-radius:2px;transition:width .2s var(--ease);
}
.nav-links a:hover{color:var(--c-primary)}
.nav-links a:hover::after{width:100%}
.nav-links a[aria-current="page"]{color:var(--c-primary)}
.nav-links a[aria-current="page"]::after{width:100%}
.nav-right{display:flex;align-items:center;gap:12px;margin-left:auto}
.nav-search{
  display:flex;align-items:center;gap:8px;height:40px;padding:0 14px;
  background:#F4F6FB;border:1px solid transparent;border-radius:var(--r-pill);
  transition:background .18s var(--ease),border-color .18s var(--ease),box-shadow .18s var(--ease);
}
.nav-search:focus-within{background:#fff;border-color:var(--c-primary);box-shadow:0 0 0 3px rgba(59,91,255,.14)}
.nav-search svg{width:16px;height:16px;stroke:#7C88A8;flex:0 0 auto}
.nav-search input{
  border:0;background:transparent;outline:none;width:170px;
  font-size:14px;color:var(--c-nav-text);
}
.nav-search input::placeholder{color:#98A2B8}
.nav-cta{
  display:inline-flex;align-items:center;justify-content:center;
  height:42px;padding:0 22px;border-radius:var(--r-pill);
  background:linear-gradient(100deg,var(--c-primary),var(--c-accent));
  color:#fff;font-size:15px;font-weight:600;
  box-shadow:0 6px 16px rgba(59,91,255,.28);
  transition:transform .18s var(--ease),box-shadow .18s var(--ease),filter .18s var(--ease);
}
.nav-cta:hover{transform:translateY(-1px);box-shadow:0 10px 24px rgba(59,91,255,.42);filter:brightness(1.05)}
.nav-cta:active{transform:translateY(0) scale(.99)}
.nav-toggle{display:none;width:44px;height:44px;align-items:center;justify-content:center;border-radius:12px}
.nav-toggle svg{width:22px;height:22px;stroke:var(--c-nav-text)}
.mobile-drawer{
  display:none;position:absolute;left:0;right:0;top:100%;
  background:#fff;border-bottom:1px solid var(--c-nav-line);
  box-shadow:0 18px 40px rgba(16,24,40,.12);
  padding:8px 20px 20px;
}
.mobile-drawer.open{display:block}
.mobile-drawer a{
  display:flex;align-items:center;min-height:44px;font-size:15px;color:var(--c-nav-text);
  border-bottom:1px solid #EEF1F7;font-weight:500;
}
.mobile-drawer a:last-of-type{border-bottom:0}
.mobile-drawer a[aria-current="page"]{color:var(--c-primary)}
.mobile-drawer .drawer-cta{
  margin-top:14px;justify-content:center;border-radius:var(--r-pill);
  background:linear-gradient(100deg,var(--c-primary),var(--c-accent));
  color:#fff;border-bottom:0;font-weight:600;
}
@media (max-width:1023px){
  .nav-links,.nav-search{display:none}
  .nav-toggle{display:flex}
  .nav-cta{display:none}
  .brand span{font-size:16px}
}

/* ============ 阅读进度条 ============ */
.read-progress{
  position:fixed;left:0;right:0;top:68px;height:2px;z-index:45;
  background:transparent;pointer-events:none;
}
.read-progress span{
  display:block;height:100%;width:0;
  background:linear-gradient(90deg,var(--c-primary),var(--c-accent));
  box-shadow:0 0 12px rgba(52,227,196,.5);
  transition:width .1s linear;
}
@media (max-width:1023px){.read-progress{top:64px}}

/* ============ 文章头区 ============ */
.post-hero{
  position:relative;overflow:hidden;
  background:
    linear-gradient(102deg,rgba(7,11,26,.96) 0%,rgba(7,11,26,.88) 42%,rgba(7,11,26,.62) 100%),
    url('/assets/images/backpic/back-1.webp') center/cover no-repeat;
  border-bottom:1px solid var(--c-line);
}
.post-hero::after{
  content:"";position:absolute;right:-140px;top:-160px;width:520px;height:520px;
  border-radius:50%;
  background:radial-gradient(circle,rgba(59,91,255,.28) 0%,rgba(59,91,255,0) 68%);
  pointer-events:none;
}
.post-hero-inner{position:relative;z-index:2;padding:26px 0 44px}
.breadcrumb{display:flex;align-items:center;gap:8px;font-size:13px;color:var(--c-text-3);flex-wrap:nowrap;overflow:hidden}
.breadcrumb a{color:var(--c-text-2);transition:color .18s var(--ease)}
.breadcrumb a:hover{color:var(--c-accent)}
.breadcrumb .sep{color:#4A5578}
.breadcrumb .current{color:var(--c-text-2);white-space:nowrap;overflow:hidden;text-overflow:ellipsis;max-width:min(52vw,460px)}
.post-head{margin-top:22px;max-width:900px}
.badge{
  display:inline-flex;align-items:center;gap:6px;height:26px;padding:0 12px;
  border-radius:var(--r-pill);font-size:13px;font-weight:500;line-height:1;
}
.badge-accent{background:rgba(52,227,196,.12);color:var(--c-accent)}
.badge-gold{background:rgba(255,182,72,.14);color:var(--c-highlight)}
.badge-muted{background:rgba(255,255,255,.08);color:var(--c-text-2)}
.post-head h1{
  margin:16px 0 0;font-size:clamp(26px,3.6vw,38px);line-height:1.3;font-weight:700;
  letter-spacing:-.02em;color:#fff;
}
.post-meta{
  margin-top:16px;display:flex;flex-wrap:wrap;align-items:center;gap:10px;
  font-size:13px;color:#8E9AB8;
}
.post-meta .dot{color:#4A5578}
.post-meta time,.post-meta .num{font-variant-numeric:tabular-nums}
.post-meta .cat{color:var(--c-accent)}

/* ============ 正文区 ============ */
.article-section{padding:56px 0 72px;background:var(--c-bg)}
@media (min-width:1024px){.article-section{padding:76px 0 96px}}
.article-layout{display:grid;grid-template-columns:minmax(0,1fr);gap:32px}
@media (min-width:1024px){
  .article-layout{grid-template-columns:minmax(0,1fr) 260px;gap:44px;align-items:start}
}
.article-main{min-width:0;max-width:820px}
.article-body{
  background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-card);
  padding:28px 22px;box-shadow:var(--shadow-card);
  font-size:16.5px;line-height:1.9;color:#DCE3F7;
  overflow-wrap:break-word;
}
@media (min-width:768px){.article-body{padding:40px 46px}}
.article-body > *:first-child{margin-top:0}
.article-body p{margin:0 0 1.2em;font-size:17px;line-height:1.9;color:#DCE3F7}
.article-body h2{
  position:relative;margin:2em 0 .8em;padding-left:16px;
  font-size:clamp(22px,2.4vw,27px);line-height:1.4;font-weight:700;color:#fff;letter-spacing:-.01em;
}
.article-body h2::before{
  content:"";position:absolute;left:0;top:.22em;bottom:.22em;width:4px;border-radius:3px;
  background:linear-gradient(180deg,var(--c-primary),var(--c-accent));
}
.article-body h3{margin:1.6em 0 .6em;font-size:19.5px;font-weight:600;color:#fff;line-height:1.5}
.article-body h4{margin:1.4em 0 .5em;font-size:17px;font-weight:600;color:#EAEEFB}
.article-body a{color:var(--c-accent);border-bottom:1px solid rgba(52,227,196,.35);transition:border-color .18s var(--ease)}
.article-body a:hover{border-color:var(--c-accent)}
.article-body strong{color:#fff;font-weight:600}
.article-body ul,.article-body ol{margin:0 0 1.3em;padding-left:1.35em}
.article-body li{margin:.4em 0;font-size:17px;line-height:1.9}
.article-body ul li::marker{color:var(--c-accent)}
.article-body ol li::marker{color:var(--c-accent);font-weight:600}
.article-body blockquote{
  margin:1.6em 0;padding:18px 22px;border-left:3px solid var(--c-accent);
  background:rgba(255,255,255,.05);border-radius:0 12px 12px 0;color:var(--c-text-2);
}
.article-body blockquote p{margin:0;font-size:16.5px;color:var(--c-text-2)}
.article-body img{border-radius:12px;margin:1.6em auto;box-shadow:var(--shadow-card)}
.article-body figure{margin:1.6em 0}
.article-body figcaption{text-align:center;font-size:13px;color:var(--c-text-3);margin-top:10px}
.article-body table{
  width:100%;border-collapse:separate;border-spacing:0;margin:1.6em 0;font-size:15px;
  background:var(--c-surface-2);border:1px solid var(--c-line);border-radius:12px;overflow:hidden;
}
.article-body thead th{background:var(--c-surface-2);font-size:14px;font-weight:600;color:#fff;text-align:left;padding:12px 14px}
.article-body tbody td{padding:12px 14px;border-top:1px solid rgba(255,255,255,.06);color:var(--c-text-2)}
.article-body tbody tr:nth-child(odd){background:#0B1229}
.article-body tbody tr:nth-child(even){background:var(--c-surface)}
.article-body hr{border:0;border-top:1px solid var(--c-line);margin:2em 0}
.article-body code{
  background:rgba(59,91,255,.16);color:#C9D4FF;padding:2px 6px;border-radius:6px;font-size:14.5px;
}
.article-empty{
  text-align:center;padding:40px 16px;
}
.article-empty svg{width:56px;height:56px;margin:0 auto 18px;stroke:var(--c-accent);opacity:.85}
.article-empty p{font-size:19px;font-weight:600;color:#fff;margin:0 0 8px}
.article-empty .empty-sub{font-size:15px;color:var(--c-text-2);font-weight:400;margin-bottom:24px}

/* 文末工具行 */
.article-foot{
  margin-top:28px;padding-top:24px;border-top:1px solid var(--c-line);
  display:flex;flex-wrap:wrap;align-items:center;gap:14px;justify-content:space-between;
}
.tag-row{display:flex;flex-wrap:wrap;gap:8px}
.tag{
  display:inline-flex;align-items:center;height:28px;padding:0 14px;border-radius:var(--r-pill);
  background:rgba(255,255,255,.06);border:1px solid var(--c-line);
  font-size:13px;color:var(--c-text-2);transition:border-color .18s var(--ease),color .18s var(--ease);
}
.tag:hover{border-color:rgba(52,227,196,.5);color:var(--c-accent)}
.copy-btn{
  display:inline-flex;align-items:center;gap:8px;height:40px;padding:0 18px;
  border-radius:var(--r-pill);border:1px solid var(--c-line-strong);
  background:rgba(255,255,255,.04);backdrop-filter:blur(8px);
  font-size:14px;color:var(--c-text-2);
  transition:border-color .18s var(--ease),color .18s var(--ease),background .18s var(--ease);
}
.copy-btn:hover{border-color:var(--c-accent);color:var(--c-accent);background:rgba(52,227,196,.10)}
.copy-btn svg{width:16px;height:16px;stroke:currentColor}

/* 双入口 */
.pager{display:grid;gap:14px;margin-top:28px}
@media (min-width:768px){.pager{grid-template-columns:1fr 1fr}}
.pager a{
  display:flex;flex-direction:column;gap:6px;padding:18px 20px;
  background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-card);
  transition:transform .18s var(--ease),border-color .18s var(--ease),box-shadow .18s var(--ease);
}
.pager a:hover{transform:translateY(-2px);border-color:rgba(59,91,255,.6);box-shadow:var(--shadow-card-hover)}
.pager .pager-label{font-size:13px;color:var(--c-text-3)}
.pager .pager-title{font-size:16px;font-weight:600;color:#fff}

/* ============ 目录 ============ */
.toc-wrap{display:none}
@media (min-width:1024px){.toc-wrap{display:block}}
.toc{
  position:sticky;top:96px;
  background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-card);
  padding:20px 18px;box-shadow:var(--shadow-card);
}
.toc-title{font-size:14px;font-weight:600;color:#fff;margin:0 0 12px;letter-spacing:.04em}
#tocList{list-style:none;display:flex;flex-direction:column;gap:2px;max-height:52vh;overflow:auto}
#tocList a{
  display:block;padding:7px 10px;border-left:2px solid transparent;border-radius:0 8px 8px 0;
  font-size:14px;line-height:1.6;color:var(--c-text-2);
  transition:color .18s var(--ease),border-color .18s var(--ease),background .18s var(--ease);
}
#tocList a:hover{color:var(--c-accent);border-left-color:var(--c-accent);background:rgba(52,227,196,.06)}
.toc-cta{
  display:flex;align-items:center;justify-content:center;margin-top:16px;height:42px;
  border-radius:var(--r-pill);font-size:14px;font-weight:600;color:#fff;
  background:linear-gradient(100deg,var(--c-primary),var(--c-accent));
  box-shadow:0 6px 16px rgba(59,91,255,.28);
  transition:transform .18s var(--ease),box-shadow .18s var(--ease);
}
.toc-cta:hover{transform:translateY(-1px);box-shadow:0 10px 24px rgba(59,91,255,.42)}
.toc-mobile{
  margin-bottom:18px;background:var(--c-surface);border:1px solid var(--c-line);
  border-radius:var(--r-card);overflow:hidden;
}
@media (min-width:1024px){.toc-mobile{display:none}}
.toc-mobile button{
  width:100%;display:flex;align-items:center;justify-content:space-between;
  padding:14px 18px;font-size:15px;font-weight:600;color:#fff;
}
.toc-mobile button svg{width:16px;height:16px;stroke:var(--c-text-2);transition:transform .2s var(--ease)}
.toc-mobile.open button svg{transform:rotate(180deg)}
.toc-mobile ul{display:none;list-style:none;padding:0 10px 12px;margin:0}
.toc-mobile.open ul{display:block}
.toc-mobile ul a{display:block;padding:9px 10px;font-size:14px;color:var(--c-text-2);border-radius:8px}
.toc-mobile ul a:hover{color:var(--c-accent);background:rgba(52,227,196,.06)}

/* ============ 板块通用 ============ */
.section{padding:64px 0;background:var(--c-bg-2);border-top:1px solid var(--c-line)}
@media (min-width:1024px){.section{padding:96px 0}}
.section-head{
  display:flex;align-items:flex-end;justify-content:space-between;gap:20px;
  margin-bottom:32px;flex-wrap:wrap;
}
.section-head h2{
  margin:0;font-size:clamp(22px,2.6vw,30px);line-height:1.35;font-weight:700;color:#fff;letter-spacing:-.01em;
}
.section-head .lead{margin:10px 0 0;font-size:16px;color:var(--c-text-2);max-width:660px}
.link-more{
  display:inline-flex;align-items:center;gap:6px;font-size:15px;color:var(--c-accent);white-space:nowrap;
}
.link-more span{transition:transform .18s var(--ease)}
.link-more:hover span{transform:translateX(4px)}

/* ============ 卡片 ============ */
.card-grid{display:grid;gap:20px;grid-template-columns:1fr}
@media (min-width:640px){.card-grid{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media (min-width:1024px){.card-grid{grid-template-columns:repeat(3,minmax(0,1fr));gap:24px}}
.content-card{
  display:flex;flex-direction:column;overflow:hidden;
  background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-card);
  box-shadow:var(--shadow-card);
  transition:transform .2s var(--ease),border-color .2s var(--ease),box-shadow .2s var(--ease);
}
.content-card:hover{transform:translateY(-3px);border-color:rgba(59,91,255,.6);box-shadow:var(--shadow-card-hover)}
.card-cover{position:relative;aspect-ratio:16/9;overflow:hidden;background:#0B1229}
.card-cover img{width:100%;height:100%;object-fit:cover;transition:transform .4s var(--ease)}
.content-card:hover .card-cover img{transform:scale(1.04)}
.card-cover .badge{position:absolute;left:12px;top:12px}
.card-body{padding:18px 20px 22px;display:flex;flex-direction:column;gap:10px;flex:1}
.card-body h3{
  margin:0;font-size:17px;line-height:1.55;font-weight:600;color:#fff;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.card-body p{
  margin:0;font-size:15px;line-height:1.85;color:var(--c-text-2);
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.card-meta{
  margin-top:auto;font-size:13px;color:var(--c-text-3);font-variant-numeric:tabular-nums;
  display:flex;align-items:center;gap:8px;
}
.card-meta .dot{color:#4A5578}
.content-card:hover .card-meta .num{color:var(--c-accent)}

/* ============ CTA 通栏 ============ */
.cta-band{position:relative;overflow:hidden;background:#05080F;border-top:1px solid var(--c-line);padding:72px 0}
@media (min-width:1024px){.cta-band{padding:96px 0}}
.cta-band::before{
  content:"";position:absolute;inset:0;
  background:
    radial-gradient(760px 320px at 18% 8%,rgba(59,91,255,.30),transparent 62%),
    radial-gradient(600px 300px at 88% 96%,rgba(52,227,196,.20),transparent 64%);
  pointer-events:none;
}
.cta-band::after{
  content:"";position:absolute;inset:0;pointer-events:none;opacity:.5;
  background-image:
    linear-gradient(rgba(255,255,255,.045) 1px,transparent 1px),
    linear-gradient(90deg,rgba(255,255,255,.045) 1px,transparent 1px);
  background-size:64px 64px;
  mask-image:radial-gradient(circle at 50% 40%,#000 10%,transparent 78%);
  -webkit-mask-image:radial-gradient(circle at 50% 40%,#000 10%,transparent 78%);
}
.cta-inner{position:relative;z-index:2;text-align:center;max-width:760px;margin:0 auto}
.cta-inner h2{margin:0;font-size:clamp(23px,2.8vw,34px);line-height:1.35;font-weight:700;color:#fff;letter-spacing:-.01em}
.cta-inner p.lead{margin:16px 0 0;font-size:16.5px;line-height:1.9;color:var(--c-text-2)}
.cta-actions{display:flex;flex-direction:column;gap:14px;margin-top:32px;align-items:stretch}
@media (min-width:640px){.cta-actions{flex-direction:row;justify-content:center;align-items:center}}
.cta-note{margin-top:20px;font-size:13px;color:var(--c-text-3)}

.btn-primary{
  display:inline-flex;align-items:center;justify-content:center;
  height:48px;padding:0 28px;border-radius:var(--r-pill);
  background:linear-gradient(100deg,#3B5BFF,#34E3C4);
  color:#fff;font-size:16px;font-weight:600;
  box-shadow:0 6px 18px rgba(59,91,255,.35);
  transition:transform .18s var(--ease),box-shadow .18s var(--ease),filter .18s var(--ease);
}
.btn-primary:hover{transform:translateY(-1px);box-shadow:0 10px 28px rgba(59,91,255,.5);filter:brightness(1.06)}
.btn-primary:active{transform:translateY(0) scale(.99)}
.btn-ghost{
  display:inline-flex;align-items:center;justify-content:center;
  height:48px;padding:0 28px;border-radius:var(--r-pill);
  background:rgba(255,255,255,.04);border:1px solid rgba(255,255,255,.22);
  backdrop-filter:blur(8px);color:var(--c-text);font-size:16px;font-weight:500;
  transition:border-color .18s var(--ease),background .18s var(--ease),transform .18s var(--ease);
}
.btn-ghost:hover{border-color:var(--c-accent);background:rgba(52,227,196,.10);transform:translateY(-1px)}

/* ============ 页脚 ============ */
.site-footer{background:#05080F;border-top:1px solid var(--c-line);padding:64px 0 0}
.footer-grid{display:grid;gap:36px;grid-template-columns:1fr}
@media (min-width:768px){.footer-grid{grid-template-columns:1.4fr 1fr 1fr 1fr;gap:28px}}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:14px}
.footer-brand svg{width:30px;height:30px}
.footer-brand span{font-size:17px;font-weight:700;color:#fff}
.footer-desc{margin:0 0 12px;font-size:14.5px;line-height:1.9;color:var(--c-text-2);max-width:360px}
.footer-contact{margin:0;font-size:13.5px;color:var(--c-text-3)}
.footer-col h3{margin:0 0 16px;font-size:15px;font-weight:600;color:#fff}
.footer-col ul{list-style:none;display:flex;flex-direction:column;gap:10px}
.footer-col a{font-size:14.5px;color:var(--c-text-2);transition:color .18s var(--ease)}
.footer-col a:hover{color:var(--c-accent)}
.footer-bottom{
  margin-top:48px;padding:20px 0;border-top:1px solid var(--c-line);
  display:flex;flex-wrap:wrap;gap:10px;justify-content:space-between;
  font-size:13px;color:var(--c-text-3);
}

@media (prefers-reduced-motion:reduce){
  *{transition:none !important;animation:none !important;scroll-behavior:auto !important}
}

/* roulang page: category1 */
:root{
  --c-bg:#070B1A;
  --c-bg-2:#0A1024;
  --c-surface:#0E1533;
  --c-surface-2:#121A3D;
  --c-line:rgba(255,255,255,.08);
  --c-line-strong:rgba(255,255,255,.16);
  --c-primary:#3B5BFF;
  --c-accent:#34E3C4;
  --c-highlight:#FFB648;
  --c-text:#EAEEFB;
  --c-text-2:#A8B4D8;
  --c-text-3:#7C88A8;
  --c-nav:#FFFFFF;
  --c-nav-line:#E8EBF3;
  --r-card:16px;
  --r-glass:20px;
  --r-sm:12px;
  --r-pill:999px;
  --shadow-card:0 10px 30px rgba(3,6,20,.5);
  --shadow-nav:0 1px 2px rgba(16,24,40,.04);
  --shell:1240px;
  --ease:cubic-bezier(.22,.61,.36,1);
}

*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  background:var(--c-bg);
  color:var(--c-text);
  font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans SC",sans-serif;
  font-size:16px;
  line-height:1.75;
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}
h1,h2,h3,h4,p,figure,blockquote{margin:0}
ul,ol{margin:0;padding:0;list-style:none}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
button,input{font:inherit;color:inherit}
button{background:none;border:0}
a:focus-visible,button:focus-visible,input:focus-visible{outline:2px solid var(--c-accent);outline-offset:2px;border-radius:8px}

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

/* ---------- 顶部导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:50;
  background:var(--c-nav);
  border-bottom:1px solid var(--c-nav-line);
  box-shadow:var(--shadow-nav);
  transition:box-shadow .2s var(--ease);
}
.site-header.is-scrolled{box-shadow:0 6px 18px rgba(16,24,40,.08)}
.header-inner{display:flex;align-items:center;gap:20px;height:68px}
.brand{display:inline-flex;align-items:center;gap:10px;flex:0 0 auto}
.brand-mark{width:30px;height:30px;flex:0 0 auto}
.brand-text{font-size:19px;font-weight:700;letter-spacing:-.01em;color:#131A33;white-space:nowrap}
.nav-links{display:flex;align-items:center;gap:2px;flex:1 1 auto;min-width:0}
.nav-links a{
  position:relative;display:inline-flex;align-items:center;height:40px;padding:0 12px;
  font-size:15px;font-weight:500;color:#131A33;border-radius:10px;
  transition:color .18s var(--ease);
}
.nav-links a::after{
  content:"";position:absolute;left:12px;right:12px;bottom:4px;height:2px;border-radius:2px;
  background:linear-gradient(90deg,var(--c-primary),var(--c-accent));
  transform:scaleX(0);transform-origin:left;transition:transform .18s var(--ease);
}
.nav-links a:hover{color:var(--c-primary)}
.nav-links a:hover::after{transform:scaleX(1)}
.nav-links a[aria-current="page"]{color:var(--c-primary)}
.nav-links a[aria-current="page"]::after{transform:scaleX(1)}
.header-tools{display:flex;align-items:center;gap:12px;flex:0 0 auto}
.nav-search{
  display:flex;align-items:center;gap:8px;height:42px;padding:0 16px;
  background:#F4F6FB;border:1px solid transparent;border-radius:var(--r-pill);
  transition:background .18s var(--ease),border-color .18s var(--ease),box-shadow .18s var(--ease);
}
.nav-search svg{width:16px;height:16px;stroke:#7C88A8;fill:none;stroke-width:1.8;flex:0 0 auto}
.nav-search input{
  width:168px;border:0;background:transparent;outline:none;font-size:14px;color:#131A33;
}
.nav-search input::placeholder{color:#8E9AB8}
.nav-search:focus-within{background:#fff;border-color:var(--c-primary);box-shadow:0 0 0 3px rgba(59,91,255,.15)}
.nav-toggle{
  display:none;width:44px;height:44px;border:1px solid var(--c-nav-line);border-radius:var(--r-sm);
  background:#fff;cursor:pointer;flex-direction:column;align-items:center;justify-content:center;gap:4px;
}
.nav-toggle span{display:block;width:18px;height:2px;border-radius:2px;background:#131A33;transition:transform .18s var(--ease),opacity .18s var(--ease)}
.nav-toggle[aria-expanded="true"] span:nth-child(1){transform:translateY(6px) rotate(45deg)}
.nav-toggle[aria-expanded="true"] span:nth-child(2){opacity:0}
.nav-toggle[aria-expanded="true"] span:nth-child(3){transform:translateY(-6px) rotate(-45deg)}
.mobile-drawer{
  position:fixed;left:0;right:0;top:68px;bottom:0;z-index:49;
  background:#fff;padding:12px 0 40px;overflow-y:auto;
  opacity:0;visibility:hidden;transform:translateY(-8px);
  transition:opacity .18s var(--ease),transform .18s var(--ease),visibility .18s var(--ease);
}
.mobile-drawer.is-open{opacity:1;visibility:visible;transform:translateY(0)}
.drawer-links a{
  display:flex;align-items:center;height:44px;padding:0 20px;font-size:16px;color:#131A33;
  border-bottom:1px solid #EEF1F7;
}
.drawer-links a[aria-current="page"]{color:var(--c-primary);font-weight:600}
.drawer-search{margin:18px 20px 0}
.drawer-search input{width:100%}
.drawer-cta{margin:18px 20px 0;width:calc(100% - 40px)}
@media (max-width:1023.98px){
  .nav-links{display:none}
  .nav-toggle{display:inline-flex}
  .header-tools .nav-search{display:none}
}
@media (min-width:1024px){
  .mobile-drawer{display:none}
}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:46px;padding:0 26px;border-radius:var(--r-pill);
  font-size:15px;font-weight:600;border:1px solid transparent;cursor:pointer;
  transition:transform .18s var(--ease),box-shadow .18s var(--ease),filter .18s var(--ease),background-color .18s var(--ease),border-color .18s var(--ease),color .18s var(--ease);
}
.btn-primary{
  background:linear-gradient(100deg,#3B5BFF,#34E3C4);color:#fff;
  box-shadow:0 6px 18px rgba(59,91,255,.35);
}
.btn-primary:hover{transform:translateY(-1px);box-shadow:0 10px 28px rgba(59,91,255,.5);filter:brightness(1.06)}
.btn-primary:active{transform:translateY(0) scale(.99)}
.btn-ghost{
  background:transparent;border-color:rgba(255,255,255,.22);color:var(--c-text);
  -webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px);
}
.btn-ghost:hover{border-color:var(--c-accent);background:rgba(52,227,196,.10)}
.btn-ghost:active{transform:scale(.99)}
.btn-sm{height:40px;padding:0 20px;font-size:14px}
.btn-lg{height:50px;padding:0 30px;font-size:16px}
.header-tools .btn-primary{box-shadow:0 4px 12px rgba(59,91,255,.22)}
.text-link{
  display:inline-flex;align-items:center;gap:6px;color:var(--c-accent);font-size:15px;font-weight:500;
  transition:color .18s var(--ease);
}
.text-link .arrow{transition:transform .18s var(--ease)}
.text-link:hover .arrow{transform:translateX(4px)}

/* ---------- 徽章 ---------- */
.badge{
  display:inline-flex;align-items:center;gap:6px;height:26px;padding:0 12px;border-radius:var(--r-pill);
  font-size:13px;font-weight:500;white-space:nowrap;
}
.badge-accent{background:rgba(52,227,196,.12);color:var(--c-accent)}
.badge-gold{background:rgba(255,182,72,.14);color:var(--c-highlight)}
.badge-ghost{background:rgba(255,255,255,.08);color:var(--c-text-2)}

/* ---------- 小 Hero ---------- */
.page-hero{
  position:relative;overflow:hidden;min-height:340px;
  display:flex;align-items:center;padding:52px 0 56px;background:var(--c-bg);
}
.page-hero::before{
  content:"";position:absolute;inset:0;
  background-image:linear-gradient(100deg,rgba(7,11,26,.96) 0%,rgba(7,11,26,.84) 44%,rgba(7,11,26,.58) 100%),url("/assets/images/backpic/back-1.webp");
  background-size:cover;background-position:center;
}
.page-hero::after{
  content:"";position:absolute;inset:0;pointer-events:none;
  background:radial-gradient(620px 300px at 84% 16%,rgba(52,227,196,.16),transparent 70%),radial-gradient(520px 260px at 10% 92%,rgba(59,91,255,.22),transparent 72%);
}
.hero-fade{
  position:absolute;left:0;right:0;top:0;height:40px;z-index:3;pointer-events:none;
  background:linear-gradient(180deg,rgba(255,255,255,.13),rgba(255,255,255,0));
}
.page-hero .container{position:relative;z-index:2}
.breadcrumb ol{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--c-text-3)}
.breadcrumb li{display:inline-flex;align-items:center;gap:8px}
.breadcrumb li+li::before{content:"/";color:#4A5578}
.breadcrumb a{color:var(--c-text-2);transition:color .18s var(--ease)}
.breadcrumb a:hover{color:var(--c-accent)}
.breadcrumb .current{color:var(--c-text);font-weight:500}
.page-hero h1{
  margin-top:16px;max-width:900px;
  font-size:clamp(28px,4vw,44px);line-height:1.24;font-weight:700;letter-spacing:-.02em;color:#fff;
}
.page-hero .lede{margin-top:16px;max-width:740px;font-size:17px;line-height:1.85;color:var(--c-text-2)}
.anchor-tags{display:flex;flex-wrap:wrap;gap:10px;margin-top:26px}
.anchor-tags a{
  display:inline-flex;align-items:center;height:36px;padding:0 16px;border-radius:var(--r-pill);
  border:1px solid var(--c-line-strong);background:rgba(255,255,255,.06);
  -webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px);
  font-size:14px;color:var(--c-text-2);
  transition:color .18s var(--ease),border-color .18s var(--ease),background-color .18s var(--ease);
}
.anchor-tags a:hover{color:var(--c-accent);border-color:var(--c-accent);background:rgba(52,227,196,.10)}

/* ---------- 板块 ---------- */
.section{padding:92px 0}
.section-alt{background:var(--c-bg-2)}
.section-head{max-width:780px;margin-bottom:44px}
.section-head h2{font-size:clamp(24px,3vw,34px);line-height:1.3;font-weight:700;color:#fff;letter-spacing:-.01em}
.section-head .section-sub{margin-top:14px;font-size:16px;line-height:1.9;color:var(--c-text-2)}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;margin-bottom:14px;
  font-size:13px;letter-spacing:.06em;color:var(--c-accent);font-weight:500;
}
.eyebrow::before{content:"";width:20px;height:2px;border-radius:2px;background:linear-gradient(90deg,var(--c-primary),var(--c-accent))}
@media (max-width:767.98px){
  .section{padding:60px 0}
  .section-head{margin-bottom:30px}
}

/* ---------- 图文交替行 ---------- */
.feature-list{display:grid;gap:8px}
.feature-row{
  display:grid;grid-template-columns:1fr;gap:22px;align-items:center;
  padding:32px 0;border-top:1px solid var(--c-line);
}
.feature-row:first-child{border-top:0;padding-top:0}
.feature-row:last-child{padding-bottom:0}
.feature-media{
  position:relative;overflow:hidden;border-radius:var(--r-card);
  border:1px solid var(--c-line);box-shadow:var(--shadow-card);
}
.feature-media img{width:100%;aspect-ratio:16/9;object-fit:cover}
.feature-media::after{
  content:"";position:absolute;inset:0;pointer-events:none;
  background:linear-gradient(180deg,rgba(7,11,26,0) 42%,rgba(7,11,26,.6));
}
.feature-body h3{margin-top:14px;font-size:20px;line-height:1.45;font-weight:600;color:#fff}
.feature-body p{margin-top:12px;font-size:16px;line-height:1.9;color:var(--c-text-2)}
.check-list{margin-top:16px;display:grid;gap:10px}
.check-list li{position:relative;padding-left:26px;font-size:15px;line-height:1.75;color:var(--c-text-2)}
.check-list li::before{content:"✓";position:absolute;left:0;top:0;color:var(--c-accent);font-weight:700}
@media (min-width:1024px){
  .feature-row{grid-template-columns:minmax(0,1.04fr) minmax(0,1fr);gap:48px;padding:44px 0}
  .feature-row:nth-child(even) .feature-media{order:2}
}

/* ---------- 内容范围清单 ---------- */
.scope-grid{display:grid;gap:20px;grid-template-columns:1fr}
.scope-item{
  position:relative;padding:22px 24px 22px 28px;border-radius:var(--r-card);
  background:var(--c-surface);border:1px solid var(--c-line);
  transition:transform .18s var(--ease),border-color .18s var(--ease),box-shadow .18s var(--ease);
}
.scope-item::before{
  content:"";position:absolute;left:0;top:20px;bottom:20px;width:3px;border-radius:0 3px 3px 0;
  background:linear-gradient(180deg,var(--c-primary),var(--c-accent));
}
.scope-item h3{font-size:17px;font-weight:600;color:#fff}
.scope-item p{margin-top:8px;font-size:15px;line-height:1.85;color:var(--c-text-2)}
.scope-item:hover{transform:translateY(-2px);border-color:rgba(59,91,255,.62);box-shadow:0 14px 34px rgba(3,6,20,.55)}
@media (min-width:640px){.scope-grid{grid-template-columns:1fr 1fr}}

/* ---------- 纵向时间线 ---------- */
.timeline{position:relative;padding-left:36px}
.timeline::before{
  content:"";position:absolute;left:8px;top:8px;bottom:8px;width:2px;border-radius:2px;
  background:linear-gradient(180deg,rgba(59,91,255,.75),rgba(52,227,196,.55) 62%,rgba(52,227,196,0));
}
.timeline-item{position:relative;padding-bottom:34px}
.timeline-item:last-child{padding-bottom:0}
.timeline-dot{
  position:absolute;left:-36px;top:6px;width:18px;height:18px;border-radius:50%;
  background:var(--c-bg);border:2px solid var(--c-accent);box-shadow:0 0 0 4px rgba(52,227,196,.12);
}
.timeline-item h3{margin-top:10px;font-size:18px;font-weight:600;color:#fff}
.timeline-item p{margin-top:8px;max-width:780px;font-size:15.5px;line-height:1.9;color:var(--c-text-2)}

/* ---------- 数据卡 ---------- */
.stat-grid{display:grid;gap:20px;grid-template-columns:1fr;margin-top:36px}
.stat-card{
  padding:26px 24px;border-radius:var(--r-card);background:var(--c-surface);
  border:1px solid var(--c-line);box-shadow:var(--shadow-card);
  transition:transform .18s var(--ease),border-color .18s var(--ease);
}
.stat-card:hover{transform:translateY(-2px);border-color:rgba(52,227,196,.42)}
.stat-value{
  font-size:clamp(28px,3.4vw,40px);line-height:1.1;font-weight:700;color:#fff;
  letter-spacing:-.01em;font-variant-numeric:tabular-nums;
}
.stat-value .unit{font-size:.48em;color:var(--c-accent);margin-left:6px;font-weight:600}
.stat-label{margin-top:12px;font-size:15px;color:var(--c-text-2)}
.stat-note{margin-top:6px;font-size:13px;color:var(--c-text-3)}
@media (min-width:640px){.stat-grid{grid-template-columns:repeat(3,1fr)}}

/* ---------- CTA 通栏 ---------- */
.cta-band{position:relative;overflow:hidden;background:#05080F;padding:76px 0}
.cta-band::before{
  content:"";position:absolute;inset:0;
  background-image:radial-gradient(700px 320px at 18% 18%,rgba(59,91,255,.30),transparent 70%),radial-gradient(640px 300px at 86% 82%,rgba(52,227,196,.20),transparent 72%),url("/assets/images/backpic/back-2.webp");
  background-size:auto,auto,cover;background-position:center,center,center;
}
.cta-band::after{
  content:"";position:absolute;inset:0;opacity:.45;
  background-image:linear-gradient(rgba(255,255,255,.04) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.04) 1px,transparent 1px);
  background-size:56px 56px;
}
.cta-inner{position:relative;z-index:2;max-width:780px}
.cta-band h2{font-size:clamp(24px,3vw,32px);line-height:1.32;font-weight:700;color:#fff}
.cta-band p{margin-top:14px;font-size:16px;line-height:1.9;color:var(--c-text-2)}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:28px}
.cta-note{margin-top:18px;font-size:13px;color:var(--c-text-3)}
@media (max-width:639.98px){
  .cta-band{padding:56px 0}
  .cta-actions{flex-direction:column}
  .cta-actions .btn{width:100%}
}

/* ---------- 页脚 ---------- */
.site-footer{background:#05080F;border-top:1px solid var(--c-line);padding:64px 0 28px;color:var(--c-text-2)}
.footer-grid{display:grid;grid-template-columns:1fr;gap:36px}
.footer-brand{display:flex;align-items:center;gap:10px;font-size:18px;font-weight:700;color:#fff}
.footer-brand svg{width:28px;height:28px;flex:0 0 auto}
.footer-desc{margin-top:14px;max-width:340px;font-size:14.5px;line-height:1.9;color:var(--c-text-2)}
.footer-contact{margin-top:10px;font-size:13.5px;color:var(--c-text-3)}
.footer-col h3{margin-bottom:14px;font-size:14px;font-weight:600;color:#fff}
.footer-col ul{display:grid;gap:10px}
.footer-col a{font-size:14.5px;color:var(--c-text-2);transition:color .18s var(--ease)}
.footer-col a:hover{color:var(--c-accent)}
.footer-bottom{
  margin-top:44px;padding-top:22px;border-top:1px solid var(--c-line);
  display:flex;flex-wrap:wrap;justify-content:space-between;gap:8px;
  font-size:13px;color:var(--c-text-3);
}
@media (min-width:640px){.footer-grid{grid-template-columns:1fr 1fr}}
@media (min-width:1024px){.footer-grid{grid-template-columns:1.6fr 1fr 1fr 1fr;gap:40px}}

@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  *,*::before,*::after{animation:none!important;transition:none!important}
}

/* roulang page: category3 */
:root{
  --c-bg:#070B1A;
  --c-bg-2:#0A1024;
  --c-surface:#0E1533;
  --c-surface-2:#121A3D;
  --c-line:rgba(255,255,255,.08);
  --c-line-2:rgba(255,255,255,.06);
  --c-primary:#3B5BFF;
  --c-accent:#34E3C4;
  --c-highlight:#FFB648;
  --c-text:#EAEEFB;
  --c-text-2:#A8B4D8;
  --c-text-3:#7C88A8;
  --c-nav:#FFFFFF;
  --c-nav-line:#E8EBF3;
  --c-ink:#131A33;
  --r-card:16px;
  --r-glass:20px;
  --r-sm:12px;
  --r-pill:999px;
  --shadow-card:0 10px 30px rgba(3,6,20,.5);
  --shadow-card-hover:0 18px 42px rgba(3,6,20,.65);
  --shadow-primary:0 6px 18px rgba(59,91,255,.35);
  --ease:cubic-bezier(.22,.61,.36,1);
  --container:1240px;
}

*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--c-bg);
  color:var(--c-text);
  font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Hiragino Sans GB","Noto Sans SC","Microsoft YaHei",sans-serif;
  font-size:16px;
  line-height:1.9;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{max-width:100%;display:block;}
a{color:inherit;text-decoration:none;}
button,input{font:inherit;color:inherit;}
button{background:none;border:0;cursor:pointer;}
ul,ol{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4,p{margin:0;}
:focus-visible{outline:2px solid var(--c-accent);outline-offset:2px;border-radius:6px;}

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

/* ---------- 导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  background:var(--c-nav);
  border-bottom:1px solid var(--c-nav-line);
  box-shadow:0 1px 2px rgba(16,24,40,.04);
  transition:box-shadow .18s var(--ease);
}
.site-header.is-scrolled{box-shadow:0 6px 18px rgba(16,24,40,.08);}
.nav-inner{
  display:flex;align-items:center;justify-content:space-between;
  gap:20px;min-height:68px;
}
.brand{display:flex;align-items:center;gap:10px;flex:none;}
.brand svg{width:32px;height:32px;flex:none;}
.brand-text{
  font-size:18px;font-weight:700;color:var(--c-ink);
  letter-spacing:-.01em;white-space:nowrap;
}
.nav-links{display:flex;align-items:center;gap:26px;}
.nav-links a{
  position:relative;
  font-size:15px;font-weight:500;color:var(--c-ink);
  padding:6px 0;line-height:1.4;white-space:nowrap;
  transition:color .18s var(--ease);
}
.nav-links a::after{
  content:"";position:absolute;left:0;bottom:0;height:2px;width:0;
  background:linear-gradient(90deg,var(--c-primary),var(--c-accent));
  border-radius:2px;transition:width .2s var(--ease);
}
.nav-links a:hover{color:var(--c-primary);}
.nav-links a:hover::after{width:100%;}
.nav-links a[aria-current="page"]{color:var(--c-primary);}
.nav-links a[aria-current="page"]::after{width:100%;}
.nav-actions{display:flex;align-items:center;gap:12px;flex:none;}
.nav-search{
  display:flex;align-items:center;gap:8px;
  background:#F4F6FB;border:1px solid transparent;
  border-radius:var(--r-pill);padding:0 14px;height:40px;width:230px;
  transition:background .18s var(--ease),border-color .18s var(--ease),box-shadow .18s var(--ease);
}
.nav-search svg{width:16px;height:16px;color:#7C88A8;flex:none;}
.nav-search input{
  border:0;background:transparent;outline:none;width:100%;
  font-size:14px;color:var(--c-ink);
}
.nav-search input::placeholder{color:#8E9AB8;}
.nav-search:focus-within{
  background:#fff;border-color:var(--c-primary);
  box-shadow:0 0 0 3px rgba(59,91,255,.14);
}
.nav-toggle{
  display:none;width:44px;height:44px;border-radius:12px;
  align-items:center;justify-content:center;color:var(--c-ink);
  border:1px solid var(--c-nav-line);
}
.nav-toggle svg{width:20px;height:20px;}

.mobile-drawer{
  display:none;background:#fff;border-top:1px solid #EEF1F7;
  padding:8px 0 18px;
}
.mobile-drawer.is-open{display:block;}
.mobile-drawer a{
  display:flex;align-items:center;min-height:44px;padding:0 20px;
  font-size:15px;color:var(--c-ink);border-bottom:1px solid #EEF1F7;
}
.mobile-drawer a[aria-current="page"]{color:var(--c-primary);font-weight:600;}
.mobile-drawer .drawer-cta{margin:16px 20px 0;}
.mobile-search{margin:14px 20px 6px;width:auto;}

@media (max-width:1023px){
  .nav-links,.nav-search,.nav-actions .btn{display:none;}
  .nav-toggle{display:inline-flex;}
}
@media (max-width:520px){
  .brand-text{font-size:16px;}
  .brand svg{width:28px;height:28px;}
}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:46px;padding:0 26px;border-radius:var(--r-pill);
  font-size:15px;font-weight:600;line-height:1;
  transition:transform .18s var(--ease),box-shadow .18s var(--ease),background .18s var(--ease),border-color .18s var(--ease),filter .18s var(--ease);
  white-space:nowrap;
}
.btn-sm{min-height:38px;padding:0 20px;font-size:14px;}
.btn-primary{
  background:linear-gradient(100deg,#3B5BFF,#34E3C4);
  color:#fff;box-shadow:var(--shadow-primary);
}
.btn-primary:hover{transform:translateY(-1px);box-shadow:0 10px 28px rgba(59,91,255,.5);filter:brightness(1.06);}
.btn-primary:active{transform:translateY(0) scale(.99);}
.btn-ghost{
  color:var(--c-text);border:1px solid rgba(255,255,255,.22);
  background:rgba(255,255,255,.04);backdrop-filter:blur(10px);
}
.btn-ghost:hover{border-color:var(--c-accent);background:rgba(52,227,196,.10);}
.btn-ghost:active{transform:translateY(1px);}
.link-arrow{
  display:inline-flex;align-items:center;gap:6px;
  color:var(--c-accent);font-size:15px;font-weight:600;
  transition:gap .18s var(--ease);
}
.link-arrow:hover{gap:10px;}
.link-arrow svg{width:16px;height:16px;}

/* ---------- Hero ---------- */
.page-hero{
  position:relative;overflow:hidden;
  background-color:var(--c-bg);
  background-image:linear-gradient(100deg,rgba(7,11,26,.95) 0%,rgba(7,11,26,.78) 45%,rgba(7,11,26,.42) 100%),
    url('/assets/images/backpic/back-2.webp');
  background-size:cover;background-position:center;
}
.page-hero::after{
  content:"";position:absolute;inset:0;pointer-events:none;
  background:radial-gradient(1100px 420px at 82% 8%,rgba(52,227,196,.16),transparent 62%),
             radial-gradient(760px 380px at 6% 92%,rgba(59,91,255,.24),transparent 66%);
}
.hero-inner{position:relative;z-index:2;padding:34px 0 52px;}
.breadcrumb{
  display:flex;align-items:center;gap:8px;flex-wrap:wrap;
  font-size:13px;color:var(--c-text-3);margin-bottom:22px;
}
.breadcrumb a{color:var(--c-text-2);transition:color .18s var(--ease);}
.breadcrumb a:hover{color:var(--c-accent);}
.breadcrumb span.sep{color:rgba(255,255,255,.24);}
.breadcrumb .current{
  color:var(--c-text);max-width:min(52vw,320px);
  overflow:hidden;text-overflow:ellipsis;white-space:nowrap;
}
.hero-badge{
  display:inline-flex;align-items:center;gap:8px;height:28px;padding:0 14px;
  border-radius:var(--r-pill);background:rgba(52,227,196,.12);
  color:#5CF0D6;font-size:13px;font-weight:600;margin-bottom:18px;
}
.page-hero h1{
  font-size:clamp(28px,4.2vw,46px);line-height:1.22;font-weight:700;
  letter-spacing:-.02em;color:#fff;max-width:20em;
}
.hero-sub{
  margin-top:16px;font-size:17px;line-height:1.85;color:var(--c-text-2);max-width:52em;
}
.hero-tags{display:flex;flex-wrap:wrap;gap:10px;margin-top:26px;}
.hero-tags a{
  display:inline-flex;align-items:center;height:36px;padding:0 18px;
  border-radius:var(--r-pill);border:1px solid rgba(255,255,255,.16);
  background:rgba(255,255,255,.05);backdrop-filter:blur(8px);
  font-size:14px;color:var(--c-text-2);
  transition:border-color .18s var(--ease),color .18s var(--ease),background .18s var(--ease);
}
.hero-tags a:hover{border-color:var(--c-accent);color:#fff;background:rgba(52,227,196,.12);}

/* ---------- 板块通用 ---------- */
.section{padding:72px 0;}
.section-alt{background:var(--c-bg-2);}
@media (min-width:1024px){ .section{padding:104px 0;} }
.section-head{max-width:820px;margin-bottom:40px;}
.section-head h2{
  font-size:clamp(23px,3vw,34px);line-height:1.3;font-weight:700;letter-spacing:-.01em;color:var(--c-text);
}
.section-head p{margin-top:14px;font-size:16px;color:var(--c-text-2);line-height:1.9;}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;margin-bottom:14px;
  font-size:13px;font-weight:600;letter-spacing:.08em;color:var(--c-accent);
}
.eyebrow::before{content:"";width:22px;height:2px;border-radius:2px;background:linear-gradient(90deg,var(--c-primary),var(--c-accent));}

/* ---------- 统计数字卡 ---------- */
.stat-grid{
  display:grid;gap:16px;grid-template-columns:repeat(2,minmax(0,1fr));
}
@media (min-width:1024px){ .stat-grid{grid-template-columns:repeat(4,minmax(0,1fr));gap:20px;} }
.stat-card{
  position:relative;overflow:hidden;
  background:var(--c-surface);border:1px solid var(--c-line);
  border-radius:var(--r-card);padding:24px 22px;box-shadow:var(--shadow-card);
  transition:transform .18s var(--ease),border-color .18s var(--ease),box-shadow .18s var(--ease);
}
.stat-card::before{
  content:"";position:absolute;top:0;left:0;right:0;height:2px;
  background:linear-gradient(90deg,var(--c-primary),var(--c-accent));opacity:.75;
}
.stat-card:hover{transform:translateY(-4px);border-color:rgba(52,227,196,.4);box-shadow:var(--shadow-card-hover);}
.stat-value{
  font-size:clamp(28px,4vw,40px);font-weight:700;line-height:1.1;
  font-variant-numeric:tabular-nums;color:#fff;letter-spacing:-.02em;
}
.stat-value em{font-style:normal;font-size:.46em;font-weight:600;color:var(--c-accent);margin-left:4px;}
.stat-label{margin-top:8px;font-size:14px;color:var(--c-text-2);}
.stat-note{margin-top:12px;font-size:13px;color:var(--c-text-3);line-height:1.7;}

/* ---------- 布局：侧栏 + 卡片网格 ---------- */
.insight-layout{display:grid;gap:28px;}
@media (min-width:1024px){
  .insight-layout{grid-template-columns:248px minmax(0,1fr);gap:36px;}
}
.filter-panel{
  background:var(--c-surface);border:1px solid var(--c-line);
  border-radius:var(--r-card);padding:20px;
}
.filter-panel h3{font-size:16px;font-weight:600;color:var(--c-text);}
.filter-panel .filter-hint{margin-top:8px;font-size:13px;line-height:1.75;color:var(--c-text-3);}
.filter-list{display:flex;flex-wrap:wrap;gap:10px;margin-top:16px;}
@media (min-width:1024px){
  .filter-panel{position:sticky;top:96px;}
  .filter-list{flex-direction:column;flex-wrap:nowrap;gap:6px;}
}
.filter-chip{
  display:inline-flex;align-items:center;justify-content:space-between;gap:10px;
  min-height:40px;padding:0 16px;border-radius:var(--r-pill);
  background:rgba(255,255,255,.04);border:1px solid var(--c-line);
  font-size:14px;color:var(--c-text-2);cursor:pointer;
  transition:color .18s var(--ease),border-color .18s var(--ease),background .18s var(--ease);
}
@media (min-width:1024px){ .filter-chip{border-radius:10px;justify-content:flex-start;} }
.filter-chip:hover{color:#fff;border-color:rgba(52,227,196,.45);background:rgba(52,227,196,.08);}
.filter-chip.is-active{
  color:#fff;border-color:transparent;
  background:linear-gradient(100deg,rgba(59,91,255,.9),rgba(52,227,196,.85));
}
.filter-chip .count{font-size:12px;font-variant-numeric:tabular-nums;opacity:.7;}

.insight-grid{display:grid;gap:20px;}
@media (min-width:768px){ .insight-grid{grid-template-columns:repeat(2,minmax(0,1fr));} }

.card{
  display:flex;flex-direction:column;height:100%;
  background:var(--c-surface);border:1px solid var(--c-line);
  border-radius:var(--r-card);overflow:hidden;box-shadow:var(--shadow-card);
  transition:transform .18s var(--ease),border-color .18s var(--ease),box-shadow .18s var(--ease);
}
.card:hover{transform:translateY(-3px);border-color:rgba(59,91,255,.45);box-shadow:var(--shadow-card-hover);}
.card-cover{position:relative;aspect-ratio:16/9;overflow:hidden;background:#0A1024;}
.card-cover img{width:100%;height:100%;object-fit:cover;transition:transform .3s var(--ease);}
.card:hover .card-cover img{transform:scale(1.04);}
.card-cover::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(7,11,26,0) 42%,rgba(7,11,26,.72) 100%);
}
.cover-tag{
  position:absolute;left:14px;top:14px;z-index:2;
  display:inline-flex;align-items:center;height:26px;padding:0 12px;
  border-radius:var(--r-pill);font-size:12px;font-weight:600;
  background:rgba(52,227,196,.16);color:#5CF0D6;backdrop-filter:blur(6px);
}
.cover-meta{
  position:absolute;right:14px;bottom:14px;z-index:2;
  font-size:12px;font-variant-numeric:tabular-nums;
  color:var(--c-text-2);background:rgba(7,11,26,.6);
  border:1px solid rgba(255,255,255,.12);border-radius:var(--r-pill);
  padding:3px 12px;backdrop-filter:blur(6px);
}
.card-body{padding:20px;display:flex;flex-direction:column;gap:10px;flex:1;}
.card-body h3{
  font-size:18px;line-height:1.45;font-weight:600;color:var(--c-text);
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.card-body p{
  font-size:15px;line-height:1.85;color:var(--c-text-2);
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.card-foot{
  margin-top:auto;padding-top:12px;border-top:1px solid var(--c-line-2);
  display:flex;align-items:center;justify-content:space-between;gap:12px;
  font-size:13px;color:var(--c-text-3);font-variant-numeric:tabular-nums;
}
.card-foot .link-arrow{font-size:13px;}

/* ---------- 口径说明 ---------- */
.rule-grid{display:grid;gap:20px;}
@media (min-width:768px){ .rule-grid{grid-template-columns:repeat(2,minmax(0,1fr));} }
.rule-item{
  background:var(--c-surface);border:1px solid var(--c-line);
  border-radius:var(--r-card);padding:24px;box-shadow:var(--shadow-card);
}
.rule-item h3{display:flex;align-items:center;gap:10px;font-size:17px;font-weight:600;color:var(--c-text);}
.rule-item h3 svg{width:20px;height:20px;color:var(--c-accent);flex:none;}
.rule-item p{margin-top:10px;font-size:15px;line-height:1.9;color:var(--c-text-2);}
.rule-list{margin-top:12px;display:flex;flex-direction:column;gap:8px;}
.rule-list li{position:relative;padding-left:20px;font-size:15px;color:var(--c-text-2);line-height:1.85;}
.rule-list li::before{
  content:"";position:absolute;left:2px;top:.66em;width:8px;height:2px;
  border-radius:2px;background:var(--c-accent);
}

/* ---------- FAQ ---------- */
.faq-panel{
  background:rgba(14,21,51,.72);border:1px solid var(--c-line);
  border-radius:var(--r-glass);backdrop-filter:blur(12px);
  box-shadow:var(--shadow-card);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;
  padding:22px 24px;text-align:left;font-size:17px;font-weight:600;color:var(--c-text);
  position:relative;transition:color .18s var(--ease);
}
.faq-q:hover{color:#fff;}
.faq-q::before{
  content:"";position:absolute;left:0;top:14px;bottom:14px;width:3px;
  border-radius:0 3px 3px 0;background:var(--c-accent);
  transform:scaleY(0);transform-origin:center;transition:transform .2s var(--ease);
}
.faq-item.is-open .faq-q::before{transform:scaleY(1);}
.faq-icon{
  flex:none;width:26px;height:26px;border-radius:50%;
  display:inline-flex;align-items:center;justify-content:center;
  border:1px solid rgba(255,255,255,.18);color:var(--c-text-2);
  transition:transform .2s var(--ease),color .18s var(--ease),border-color .18s var(--ease);
}
.faq-icon svg{width:13px;height:13px;}
.faq-item.is-open .faq-icon{transform:rotate(45deg);color:var(--c-accent);border-color:rgba(52,227,196,.5);}
.faq-a{max-height:0;overflow:hidden;transition:max-height .26s var(--ease);}
.faq-a-inner{padding:0 24px 22px;font-size:15px;line-height:1.9;color:var(--c-text-2);max-width:60em;}

/* ---------- CTA ---------- */
.cta-band{
  position:relative;overflow:hidden;
  background:var(--c-bg-2);
  border-top:1px solid var(--c-line);border-bottom:1px solid var(--c-line);
}
.cta-band::before{
  content:"";position:absolute;inset:0;pointer-events:none;
  background:radial-gradient(680px 320px at 78% 12%,rgba(52,227,196,.18),transparent 64%),
             radial-gradient(620px 300px at 12% 88%,rgba(59,91,255,.26),transparent 66%),
             repeating-linear-gradient(90deg,rgba(255,255,255,.035) 0 1px,transparent 1px 68px);
  opacity:.9;
}
.cta-inner{position:relative;z-index:2;padding:64px 0;}
@media (min-width:1024px){ .cta-inner{padding:82px 0;} }
.cta-inner h2{font-size:clamp(23px,3vw,34px);line-height:1.3;font-weight:700;color:#fff;letter-spacing:-.01em;max-width:22em;}
.cta-inner p{margin-top:14px;font-size:16px;color:var(--c-text-2);max-width:46em;line-height:1.9;}
.cta-actions{display:flex;flex-direction:column;gap:14px;margin-top:30px;}
@media (min-width:640px){ .cta-actions{flex-direction:row;align-items:center;} }
.cta-foot{margin-top:22px;font-size:13px;color:var(--c-text-3);}

/* ---------- 页脚 ---------- */
.site-footer{background:#05080F;border-top:1px solid var(--c-line);padding:64px 0 28px;}
.footer-grid{display:grid;gap:36px;}
@media (min-width:768px){ .footer-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:40px;} }
@media (min-width:1024px){ .footer-grid{grid-template-columns:1.6fr 1fr 1fr 1fr;} }
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:16px;}
.footer-brand svg{width:30px;height:30px;flex:none;}
.footer-brand span{font-size:17px;font-weight:700;color:#fff;}
.footer-desc{font-size:14px;line-height:1.9;color:var(--c-text-2);max-width:34em;}
.footer-contact{margin-top:14px;font-size:13px;color:var(--c-text-3);}
.footer-col h3{font-size:15px;font-weight:600;color:#fff;margin-bottom:16px;}
.footer-col ul{display:flex;flex-direction:column;gap:12px;}
.footer-col a{font-size:14px;color:var(--c-text-2);transition:color .18s var(--ease);}
.footer-col a:hover{color:var(--c-accent);}
.footer-bottom{
  margin-top:44px;padding-top:22px;border-top:1px solid var(--c-line);
  display:flex;flex-wrap:wrap;gap:10px 24px;justify-content:space-between;
  font-size:13px;color:var(--c-text-3);
}

@media (prefers-reduced-motion:reduce){
  *{animation:none !important;transition:none !important;}
  html{scroll-behavior:auto;}
}

/* roulang page: category2 */
:root{
  --c-bg:#070B1A;
  --c-bg-2:#0A1024;
  --c-surface:#0E1533;
  --c-surface-2:#121A3D;
  --c-line:rgba(255,255,255,.08);
  --c-primary:#3B5BFF;
  --c-accent:#34E3C4;
  --c-highlight:#FFB648;
  --c-text:#EAEEFB;
  --c-text-2:#A8B4D8;
  --c-text-3:#7C88A8;
  --c-nav:#FFFFFF;
  --c-nav-line:#E8EBF3;
  --c-ink:#131A33;
  --r-card:16px;
  --r-glass:20px;
  --r-sm:12px;
  --shadow-card:0 10px 30px rgba(3,6,20,.5);
  --shadow-card-hover:0 18px 42px rgba(3,6,20,.62);
  --t:180ms cubic-bezier(.2,.7,.3,1);
}

*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{
  margin:0;
  font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Hiragino Sans GB","Noto Sans SC","Microsoft YaHei",sans-serif;
  background:var(--c-bg);
  color:var(--c-text);
  font-size:16px;
  line-height:1.9;
  -webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4{margin:0;font-weight:700;letter-spacing:-.01em;color:var(--c-text);line-height:1.3}
p{margin:0}
ul,ol{margin:0;padding:0;list-style:none}
img{display:block;max-width:100%;height:auto}
a{color:inherit;text-decoration:none}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer}
input{font:inherit}
svg{display:block}
:focus-visible{outline:2px solid var(--c-accent);outline-offset:2px;border-radius:6px}
::selection{background:rgba(52,227,196,.3);color:#04121A}

body .container{width:100%;max-width:1240px;margin:0 auto;padding:0 32px}

.section{padding:104px 0}
.section-alt{background:var(--c-bg-2)}
.section-head{max-width:820px;margin-bottom:44px}
.section-head h2{font-size:clamp(24px,3vw,34px);line-height:1.3}
.section-head p{margin-top:14px;color:var(--c-text-2);font-size:17px}
.eyebrow{display:inline-flex;align-items:center;gap:8px;font-size:13px;font-weight:600;letter-spacing:.08em;color:var(--c-accent);margin-bottom:14px}
.eyebrow::before{content:"";width:22px;height:2px;background:linear-gradient(90deg,var(--c-primary),var(--c-accent));border-radius:2px}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:46px;padding:0 26px;border-radius:999px;
  font-size:15px;font-weight:600;line-height:1;
  border:1px solid transparent;cursor:pointer;
  transition:transform var(--t),box-shadow var(--t),background var(--t),border-color var(--t),color var(--t),filter var(--t);
}
.btn-sm{height:42px;padding:0 20px;font-size:14px}
.btn-block{width:100%}
.btn-primary{
  background:linear-gradient(100deg,#3B5BFF,#34E3C4);
  color:#fff;box-shadow:0 6px 18px rgba(59,91,255,.35);
}
.btn-primary:hover{transform:translateY(-1px);box-shadow:0 10px 28px rgba(59,91,255,.5);filter:brightness(1.06)}
.btn-primary:active{transform:translateY(0) scale(.99)}
.btn-ghost{
  background:rgba(255,255,255,.04);
  border-color:rgba(255,255,255,.22);
  color:var(--c-text);
  backdrop-filter:blur(8px);
}
.btn-ghost:hover{border-color:var(--c-accent);background:rgba(52,227,196,.10)}
.btn-soft{
  background:rgba(59,91,255,.12);
  border-color:rgba(59,91,255,.32);
  color:#C9D4FF;
}
.btn-soft:hover{background:rgba(59,91,255,.2);border-color:var(--c-primary)}
.btn-link{
  display:inline-flex;align-items:center;gap:8px;color:var(--c-accent);
  font-size:15px;font-weight:600;
}
.btn-link svg{transition:transform var(--t)}
.btn-link:hover svg{transform:translateX(4px)}

/* ---------- 徽章 ---------- */
.badge{
  display:inline-flex;align-items:center;gap:6px;
  height:26px;padding:0 12px;border-radius:999px;
  font-size:13px;font-weight:500;line-height:1;white-space:nowrap;
}
.badge-accent{background:rgba(52,227,196,.12);color:var(--c-accent)}
.badge-gold{background:rgba(255,182,72,.14);color:var(--c-highlight)}
.badge-muted{background:rgba(255,255,255,.08);color:var(--c-text-2)}

/* ---------- 导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:50;
  background:var(--c-nav);
  border-bottom:1px solid var(--c-nav-line);
  box-shadow:0 1px 2px rgba(16,24,40,.04);
  transition:box-shadow var(--t);
}
.site-header.is-scrolled{box-shadow:0 6px 18px rgba(16,24,40,.08)}
.nav-wrap{display:flex;align-items:center;gap:20px;height:68px}
.brand{display:flex;align-items:center;gap:10px;flex:0 0 auto}
.brand-mark{width:30px;height:30px;flex:0 0 auto}
.brand-text{font-size:18px;font-weight:700;color:var(--c-ink);letter-spacing:-.01em;white-space:nowrap}
.nav-links{display:flex;align-items:center;gap:2px;margin-left:6px}
.nav-links a{
  position:relative;display:inline-flex;align-items:center;height:68px;
  padding:0 14px;font-size:15px;font-weight:500;color:var(--c-ink);
  transition:color var(--t);
}
.nav-links a::after{
  content:"";position:absolute;left:14px;right:14px;bottom:18px;height:2px;border-radius:2px;
  background:linear-gradient(90deg,var(--c-primary),var(--c-accent));
  transform:scaleX(0);transform-origin:left;transition:transform var(--t);
}
.nav-links a:hover{color:var(--c-primary)}
.nav-links a:hover::after{transform:scaleX(1)}
.nav-links a[aria-current="page"]{color:var(--c-primary)}
.nav-links a[aria-current="page"]::after{transform:scaleX(1)}
.nav-actions{margin-left:auto;display:flex;align-items:center;gap:12px}
.search-box{
  display:flex;align-items:center;gap:8px;height:42px;padding:0 16px;
  background:#F4F6FB;border:1px solid transparent;border-radius:999px;
  transition:background var(--t),border-color var(--t),box-shadow var(--t);
}
.search-box:focus-within{background:#fff;border-color:var(--c-primary);box-shadow:0 0 0 4px rgba(59,91,255,.12)}
.search-icon{width:17px;height:17px;color:#7B86A8;flex:0 0 auto}
.search-box input{border:0;outline:0;background:transparent;width:148px;font-size:14px;color:var(--c-ink)}
.search-box input::placeholder{color:#8B96B4}
.nav-toggle{display:none;width:44px;height:44px;border-radius:12px;flex-direction:column;justify-content:center;align-items:center;gap:5px;background:#F4F6FB;transition:background var(--t)}
.nav-toggle:hover{background:#E9EDF8}
.nav-toggle span{width:18px;height:2px;border-radius:2px;background:var(--c-ink)}

/* ---------- 移动抽屉 ---------- */
.mobile-drawer{
  position:fixed;inset:0;z-index:70;background:#fff;color:var(--c-ink);
  display:flex;flex-direction:column;padding:18px 20px 28px;
  opacity:0;transform:translateY(-10px);pointer-events:none;
  transition:opacity var(--t),transform var(--t);
  overflow-y:auto;
}
.mobile-drawer.open{opacity:1;transform:none;pointer-events:auto}
.drawer-head{display:flex;align-items:center;justify-content:space-between;padding-bottom:14px;border-bottom:1px solid var(--c-nav-line)}
.drawer-close{width:44px;height:44px;border-radius:12px;background:#F4F6FB;font-size:22px;line-height:1;color:var(--c-ink)}
.drawer-search{display:flex;align-items:center;gap:8px;height:46px;margin-top:18px;padding:0 16px;background:#F4F6FB;border-radius:12px}
.drawer-search input{border:0;outline:0;background:transparent;width:100%;font-size:15px;color:var(--c-ink)}
.drawer-nav{display:flex;flex-direction:column;margin-top:14px}
.drawer-nav a{
  display:flex;align-items:center;min-height:44px;padding:0 4px;
  font-size:16px;font-weight:500;color:var(--c-ink);
  border-bottom:1px solid #EEF1F7;
}
.drawer-nav a[aria-current="page"]{color:var(--c-primary);font-weight:600}
.drawer-cta{margin-top:22px;width:100%}

/* ---------- 分类页 Hero ---------- */
.page-hero{
  position:relative;overflow:hidden;
  min-height:340px;display:flex;align-items:center;
  background:#070B1A url('/assets/images/backpic/back-2.webp') center right/cover no-repeat;
}
.page-hero::before{
  content:"";position:absolute;inset:0;
  background:linear-gradient(100deg,rgba(7,11,26,.97) 6%,rgba(7,11,26,.86) 42%,rgba(7,11,26,.52) 100%);
}
.page-hero::after{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:
    radial-gradient(1.5px 1.5px at 18% 32%,rgba(255,255,255,.55),transparent 62%),
    radial-gradient(1.3px 1.3px at 62% 22%,rgba(52,227,196,.6),transparent 62%),
    radial-gradient(1.2px 1.2px at 42% 74%,rgba(255,255,255,.4),transparent 62%),
    radial-gradient(1.4px 1.4px at 84% 58%,rgba(255,255,255,.35),transparent 62%);
}
.page-hero .container{position:relative;z-index:2;padding-top:64px;padding-bottom:64px}
.breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--c-text-3);margin-bottom:18px}
.breadcrumb a{color:var(--c-text-2);transition:color var(--t)}
.breadcrumb a:hover{color:var(--c-accent)}
.breadcrumb .sep{color:#4A5578}
.breadcrumb .now{color:var(--c-accent);max-width:340px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.page-hero h1{
  font-size:clamp(28px,3.8vw,44px);line-height:1.22;color:#fff;
  letter-spacing:-.02em;max-width:880px;
}
.page-hero .hero-lead{margin-top:16px;max-width:720px;font-size:17px;color:var(--c-text-2);line-height:1.85}
.anchor-row{display:flex;flex-wrap:wrap;gap:10px;margin-top:26px}
.anchor-row a{
  display:inline-flex;align-items:center;height:38px;padding:0 18px;border-radius:999px;
  font-size:14px;font-weight:500;color:var(--c-text-2);
  background:rgba(255,255,255,.05);border:1px solid rgba(255,255,255,.14);
  transition:background var(--t),color var(--t),border-color var(--t),transform var(--t);
}
.anchor-row a:hover{color:#fff;border-color:var(--c-accent);background:rgba(52,227,196,.12);transform:translateY(-1px)}

/* ---------- 对比表 ---------- */
.table-shell{
  background:var(--c-surface);border:1px solid var(--c-line);
  border-radius:var(--r-card);box-shadow:var(--shadow-card);overflow:hidden;
}
.table-scroll{overflow-x:auto;-webkit-overflow-scrolling:touch}
.cmp-table{width:100%;min-width:820px;border-collapse:collapse;font-size:15px}
.cmp-table thead th{
  position:sticky;top:0;z-index:2;background:var(--c-surface-2);
  padding:20px;text-align:left;font-size:14px;font-weight:600;color:var(--c-text);
  border-bottom:1px solid var(--c-line);vertical-align:top;
}
.cmp-table thead th:first-child{left:0;z-index:4;color:var(--c-text-3);font-weight:500}
.cmp-table thead .plan-name{display:block;font-size:16px;font-weight:700;color:#fff}
.cmp-table thead .plan-price{display:block;margin-top:6px;font-size:13px;color:var(--c-accent);font-weight:600}
.cmp-table thead .plan-desc{display:block;margin-top:8px;font-size:13px;color:var(--c-text-3);font-weight:400;line-height:1.7}
.cmp-table tbody th{
  position:sticky;left:0;z-index:3;background:#0B1229;
  padding:16px 20px;text-align:left;font-size:14px;font-weight:500;color:var(--c-text-2);
  white-space:nowrap;border-right:1px solid var(--c-line);border-top:1px solid rgba(255,255,255,.06);
}
.cmp-table tbody td{
  padding:16px 20px;color:var(--c-text-2);border-top:1px solid rgba(255,255,255,.06);
  vertical-align:middle;
}
.cmp-table tbody tr:nth-child(odd) td{background:#0B1229}
.cmp-table tbody tr:nth-child(even) td{background:#0E1533}
.cmp-table .col-reco{background:rgba(59,91,255,.10)!important;border-left:1px solid rgba(59,91,255,.28);border-right:1px solid rgba(59,91,255,.28)}
.cmp-table thead th.col-reco{position:relative;color:#fff}
.cmp-table thead th.col-reco::before{
  content:"";position:absolute;left:0;right:0;top:0;height:2px;
  background:linear-gradient(90deg,var(--c-primary),var(--c-accent));
}
.cmp-table tfoot th{
  position:sticky;left:0;z-index:3;background:#0B1229;
  padding:20px;text-align:left;font-size:14px;font-weight:500;color:var(--c-text-2);
  border-right:1px solid var(--c-line);border-top:1px solid var(--c-line);
}
.cmp-table tfoot td{padding:18px 20px;border-top:1px solid var(--c-line);background:#0E1533}
.cmp-table tfoot td.col-reco{background:rgba(59,91,255,.10)!important}
.tick{display:inline-flex;align-items:center;gap:8px;color:var(--c-accent)}
.tick svg{width:16px;height:16px;flex:0 0 auto}
.miss{color:#4A5578}
.reco-flag{
  position:absolute;top:-1px;right:14px;
  display:inline-flex;align-items:center;height:24px;padding:0 12px;
  border-radius:0 0 10px 10px;font-size:12px;font-weight:600;
  background:linear-gradient(100deg,var(--c-primary),var(--c-accent));color:#fff;
}
.table-note{margin-top:16px;font-size:13px;color:var(--c-text-3)}

/* ---------- 等级卡 ---------- */
.level-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:24px}
.level-card{
  position:relative;
  background:linear-gradient(180deg,rgba(255,255,255,.07),rgba(255,255,255,.02));
  border:1px solid var(--c-line);border-top-color:rgba(255,255,255,.12);
  border-radius:var(--r-glass);padding:34px;
  backdrop-filter:blur(10px);
  transition:transform var(--t),border-color var(--t),box-shadow var(--t);
}
.level-card:hover{transform:translateY(-4px);border-color:var(--c-primary);box-shadow:0 18px 42px rgba(59,91,255,.22)}
.level-card .level-top{display:flex;align-items:center;gap:12px;margin-bottom:18px}
.level-sig{width:44px;height:44px;flex:0 0 auto}
.level-card h3{font-size:22px}
.level-card .level-tag{margin-top:10px;font-size:15px;color:var(--c-text-2)}
.level-card .level-list{margin-top:22px;display:flex;flex-direction:column;gap:12px}
.level-card .level-list li{display:flex;gap:10px;font-size:15px;color:var(--c-text-2);line-height:1.75}
.level-card .level-list svg{width:17px;height:17px;margin-top:5px;flex:0 0 auto;color:var(--c-accent)}
.level-cond{
  margin-top:22px;padding:14px 16px;border-radius:var(--r-sm);
  background:rgba(255,255,255,.05);border:1px solid var(--c-line);
  font-size:14px;color:var(--c-text-2);line-height:1.75;
}
.level-cond strong{color:var(--c-highlight);font-weight:600}
.level-card .level-cta{margin-top:20px}

/* ---------- 生效路径 ---------- */
.path-grid{display:grid;grid-template-columns:minmax(0,1.05fr) minmax(0,1fr);gap:40px;align-items:center}
.path-figure{border-radius:var(--r-card);overflow:hidden;border:1px solid var(--c-line);box-shadow:var(--shadow-card)}
.path-figure img{width:100%;aspect-ratio:16/9;object-fit:cover}
.step-list{display:flex;flex-direction:column;gap:18px}
.step-item{
  display:flex;gap:18px;padding:22px;border-radius:var(--r-card);
  background:var(--c-surface);border:1px solid var(--c-line);
  transition:transform var(--t),border-color var(--t),box-shadow var(--t);
}
.step-item:hover{transform:translateY(-2px);border-color:var(--c-primary);box-shadow:var(--shadow-card-hover)}
.step-num{
  flex:0 0 auto;width:38px;height:38px;border-radius:999px;
  display:flex;align-items:center;justify-content:center;
  font-size:15px;font-weight:700;font-variant-numeric:tabular-nums;
  background:rgba(59,91,255,.16);color:#B9C6FF;border:1px solid rgba(59,91,255,.34);
}
.step-item h3{font-size:17px;margin-bottom:6px}
.step-item p{font-size:15px;color:var(--c-text-2);line-height:1.8}
.stat-strip{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:18px;margin-top:34px}
.stat-cell{
  padding:20px;border-radius:var(--r-card);background:rgba(255,255,255,.04);
  border:1px solid var(--c-line);
}
.stat-cell .num{font-size:30px;font-weight:700;font-variant-numeric:tabular-nums;color:#fff;line-height:1.2}
.stat-cell .lab{margin-top:6px;font-size:13px;color:var(--c-text-2)}

/* ---------- FAQ ---------- */
.faq-list{border-top:1px solid var(--c-line)}
.faq-item{border-bottom:1px solid var(--c-line)}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:20px;
  padding:24px 18px 24px 22px;text-align:left;
  font-size:17px;font-weight:600;color:#fff;
  position:relative;transition:color var(--t),background var(--t);
}
.faq-q::before{
  content:"";position:absolute;left:0;top:18px;bottom:18px;width:3px;border-radius:3px;
  background:linear-gradient(180deg,var(--c-primary),var(--c-accent));
  opacity:0;transition:opacity var(--t);
}
.faq-q:hover{color:var(--c-accent)}
.faq-item.open .faq-q::before{opacity:1}
.faq-item.open .faq-q{color:#fff}
.faq-icon{width:20px;height:20px;flex:0 0 auto;color:var(--c-text-2);transition:transform var(--t),color var(--t)}
.faq-item.open .faq-icon{transform:rotate(45deg);color:var(--c-accent)}
.faq-a{
  max-height:0;overflow:hidden;padding:0 22px;
  transition:max-height 220ms ease-out,padding var(--t);
}
.faq-item.open .faq-a{max-height:340px;padding-bottom:24px}
.faq-a p{font-size:15.5px;color:var(--c-text-2);line-height:1.9;max-width:900px}

/* ---------- CTA 通栏 ---------- */
.cta-band{position:relative;overflow:hidden;background:#05080F;padding:88px 0}
.cta-band::before{
  content:"";position:absolute;inset:0;
  background:
    radial-gradient(620px 320px at 18% 18%,rgba(59,91,255,.34),transparent 72%),
    radial-gradient(520px 280px at 84% 78%,rgba(52,227,196,.2),transparent 72%);
}
.cta-band::after{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:
    linear-gradient(rgba(255,255,255,.045) 1px,transparent 1px),
    linear-gradient(90deg,rgba(255,255,255,.045) 1px,transparent 1px);
  background-size:52px 52px;
  -webkit-mask-image:radial-gradient(62% 62% at 50% 50%,#000,transparent);
  mask-image:radial-gradient(62% 62% at 50% 50%,#000,transparent);
}
.cta-band .container{position:relative;z-index:2}
.cta-panel{
  max-width:920px;padding:44px;border-radius:24px;
  background:linear-gradient(180deg,rgba(255,255,255,.07),rgba(255,255,255,.02));
  border:1px solid rgba(255,255,255,.12);border-top-color:rgba(255,255,255,.18);
  backdrop-filter:blur(12px);
}
.cta-panel h2{font-size:clamp(24px,3vw,34px);color:#fff}
.cta-panel p{margin-top:14px;font-size:17px;color:var(--c-text-2);max-width:640px}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:30px}
.cta-foot{margin-top:22px;font-size:13px;color:var(--c-text-3)}

/* ---------- 页脚 ---------- */
.site-footer{background:#05080F;padding:76px 0 30px;border-top:1px solid rgba(255,255,255,.06)}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:40px}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:16px}
.footer-brand svg{width:28px;height:28px}
.footer-brand span{font-size:17px;font-weight:700;color:#fff}
.footer-desc{font-size:14.5px;color:var(--c-text-3);line-height:1.85;max-width:340px}
.footer-contact{margin-top:14px;font-size:13.5px;color:var(--c-text-2)}
.footer-col h3{font-size:15px;font-weight:600;color:#fff;margin-bottom:16px}
.footer-col ul{display:flex;flex-direction:column;gap:11px}
.footer-col a{font-size:14.5px;color:var(--c-text-3);transition:color var(--t)}
.footer-col a:hover{color:var(--c-accent)}
.footer-bottom{
  margin-top:48px;padding-top:22px;border-top:1px solid rgba(255,255,255,.07);
  display:flex;flex-wrap:wrap;gap:10px;justify-content:space-between;
  font-size:13px;color:var(--c-text-3);font-variant-numeric:tabular-nums;
}

/* ---------- 响应式 ---------- */
@media (max-width:1180px){
  .nav-links a{padding:0 10px;font-size:14.5px}
  .search-box input{width:112px}
}
@media (max-width:1023px){
  body .container{padding:0 24px}
  .nav-links{display:none}
  .search-box{display:none}
  .nav-toggle{display:flex}
  .section{padding:76px 0}
  .path-grid{grid-template-columns:minmax(0,1fr);gap:28px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
}
@media (max-width:767px){
  body .container{padding:0 20px}
  .section{padding:60px 0}
  .page-hero{min-height:300px}
  .page-hero .container{padding-top:48px;padding-bottom:48px}
  .page-hero .hero-lead{font-size:16px}
  .level-grid{grid-template-columns:minmax(0,1fr)}
  .stat-strip{grid-template-columns:minmax(0,1fr)}
  .cta-panel{padding:28px}
  .cta-actions .btn{width:100%}
  .footer-grid{grid-template-columns:1fr;gap:28px}
  .footer-bottom{flex-direction:column;gap:8px}
  .cmp-table{min-width:720px}
}
@media (max-width:520px){
  .brand-text{font-size:16px}
  .anchor-row a{height:36px;padding:0 14px;font-size:13px}
  .level-card{padding:24px}
  .step-item{padding:18px}
}
@media (prefers-reduced-motion: reduce){
  *{animation:none!important;transition:none!important}
  html{scroll-behavior:auto}
}

/* roulang page: category4 */
:root{
  --c-bg:#070B1A;
  --c-bg-2:#0A1024;
  --c-surface:#0E1533;
  --c-surface-2:#121A3D;
  --c-line:rgba(255,255,255,.08);
  --c-primary:#3B5BFF;
  --c-accent:#34E3C4;
  --c-highlight:#FFB648;
  --c-text:#EAEEFB;
  --c-text-2:#A8B4D8;
  --c-text-3:#7C88A8;
  --c-nav:#FFFFFF;
  --c-nav-line:#E8EBF3;
  --c-ink:#131A33;
  --radius-card:16px;
  --radius-glass:20px;
  --radius-sm:12px;
  --shadow-card:0 10px 30px rgba(3,6,20,.5);
  --shadow-card-hover:0 22px 48px rgba(3,6,20,.7);
  --ease:160ms ease-out;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans SC",sans-serif;
  background:var(--c-bg);
  color:var(--c-text);
  font-size:16px;
  line-height:1.9;
  -webkit-font-smoothing:antialiased;
}
body.menu-open{overflow:hidden}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none;transition:color var(--ease)}
button{font-family:inherit;cursor:pointer}
input,button{font-size:100%}
h1,h2,h3,h4{margin:0;line-height:1.3;font-weight:700;letter-spacing:-.01em}
p{margin:0}
ul{margin:0;padding:0;list-style:none}
svg{display:block}
:focus-visible{outline:2px solid var(--c-accent);outline-offset:2px;border-radius:6px}

.container{width:100%;max-width:1240px;margin:0 auto;padding:0 20px}
@media (min-width:768px){.container{padding:0 32px}}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:46px;padding:0 26px;border-radius:999px;border:1px solid transparent;
  font-size:15px;font-weight:600;letter-spacing:.01em;white-space:nowrap;
  transition:transform var(--ease),box-shadow var(--ease),border-color var(--ease),background-color var(--ease),filter var(--ease);
}
.btn-primary{
  background:linear-gradient(100deg,#3B5BFF,#34E3C4);
  color:#FFFFFF;
  box-shadow:0 6px 18px rgba(59,91,255,.35);
}
.btn-primary:hover{transform:translateY(-1px);box-shadow:0 10px 28px rgba(59,91,255,.5);filter:brightness(1.06)}
.btn-primary:active{transform:translateY(0) scale(.99)}
.btn-ghost{
  background:rgba(255,255,255,.04);
  border-color:rgba(255,255,255,.22);
  color:var(--c-text);
  backdrop-filter:blur(8px);
}
.btn-ghost:hover{border-color:var(--c-accent);background:rgba(52,227,196,.10);color:#FFFFFF}
.btn-ghost:active{transform:scale(.99)}
.btn-sm{height:40px;padding:0 18px;font-size:14px}
.btn-lg{height:52px;padding:0 32px;font-size:16px}
.link-arrow{
  display:inline-flex;align-items:center;gap:6px;color:var(--c-accent);
  font-size:15px;font-weight:500;
}
.link-arrow svg{transition:transform var(--ease)}
.link-arrow:hover svg{transform:translateX(4px)}

/* ============ 徽章 ============ */
.badge{
  display:inline-flex;align-items:center;gap:6px;height:26px;padding:0 12px;border-radius:999px;
  font-size:13px;font-weight:500;line-height:1;white-space:nowrap;
}
.badge-accent{background:rgba(52,227,196,.12);color:var(--c-accent)}
.badge-gold{background:rgba(255,182,72,.14);color:var(--c-highlight)}
.badge-muted{background:rgba(255,255,255,.08);color:var(--c-text-2)}

/* ============ 导航 ============ */
.site-header{
  position:sticky;top:0;z-index:60;background:var(--c-nav);
  border-bottom:1px solid var(--c-nav-line);
  box-shadow:0 1px 2px rgba(16,24,40,.04);
  transition:box-shadow var(--ease);
}
.site-header.is-scrolled{box-shadow:0 6px 18px rgba(16,24,40,.08)}
.nav-wrap{display:flex;align-items:center;gap:18px;height:68px}
.brand{display:flex;align-items:center;gap:10px;color:var(--c-ink);font-weight:700;font-size:17px;letter-spacing:-.01em;flex-shrink:0}
.brand svg{width:28px;height:28px;flex-shrink:0}
.nav-links{display:none;align-items:center;gap:2px;margin-left:6px}
.nav-links a{
  position:relative;display:inline-flex;align-items:center;height:68px;padding:0 12px;
  font-size:15px;font-weight:500;color:var(--c-ink);
}
.nav-links a::after{
  content:"";position:absolute;left:12px;right:12px;bottom:18px;height:2px;border-radius:2px;
  background:linear-gradient(90deg,var(--c-primary),var(--c-accent));
  transform:scaleX(0);transform-origin:left;transition:transform var(--ease);
}
.nav-links a:hover{color:var(--c-primary)}
.nav-links a:hover::after{transform:scaleX(1)}
.nav-links a[aria-current="page"]{color:var(--c-primary);font-weight:600}
.nav-links a[aria-current="page"]::after{transform:scaleX(1)}
.nav-actions{margin-left:auto;display:flex;align-items:center;gap:12px}
.nav-search{display:none;position:relative}
.nav-search input{
  height:42px;width:200px;border-radius:999px;border:1px solid transparent;
  background:#F4F6FB;color:var(--c-ink);padding:0 18px;font-size:14px;
  transition:background var(--ease),border-color var(--ease),box-shadow var(--ease),width var(--ease);
}
.nav-search input::placeholder{color:#8A94AC}
.nav-search input:focus{
  outline:none;background:#FFFFFF;border-color:var(--c-primary);
  box-shadow:0 0 0 3px rgba(59,91,255,.14);width:230px;
}
.nav-toggle{
  display:inline-flex;flex-direction:column;justify-content:center;gap:5px;
  width:44px;height:44px;border-radius:12px;border:1px solid var(--c-nav-line);
  background:#FFFFFF;align-items:center;
}
.nav-toggle span{display:block;width:18px;height:2px;background:var(--c-ink);border-radius:2px;transition:transform var(--ease),opacity var(--ease)}
.nav-toggle[aria-expanded="true"] span:nth-child(1){transform:translateY(7px) rotate(45deg)}
.nav-toggle[aria-expanded="true"] span:nth-child(2){opacity:0}
.nav-toggle[aria-expanded="true"] span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}
.mobile-drawer{
  position:fixed;left:0;right:0;top:68px;bottom:0;z-index:55;background:#FFFFFF;
  padding:12px 20px 40px;overflow-y:auto;opacity:0;visibility:hidden;
  transform:translateY(-8px);transition:opacity var(--ease),transform var(--ease),visibility var(--ease);
}
.mobile-drawer.is-open{opacity:1;visibility:visible;transform:translateY(0)}
.mobile-drawer a{display:flex;align-items:center;height:48px;border-bottom:1px solid #EEF1F7;color:var(--c-ink);font-size:16px;font-weight:500}
.mobile-drawer a[aria-current="page"]{color:var(--c-primary)}
.mobile-drawer .drawer-cta{margin-top:20px;border-bottom:none}
.mobile-drawer .drawer-cta .btn{width:100%}
.mobile-search{margin:16px 0 4px}
.mobile-search input{
  width:100%;height:44px;border-radius:12px;border:1px solid var(--c-nav-line);
  background:#F4F6FB;padding:0 16px;color:var(--c-ink);font-size:14px;
}
.mobile-search input:focus{outline:none;border-color:var(--c-primary);background:#FFFFFF;box-shadow:0 0 0 3px rgba(59,91,255,.14)}
@media (min-width:1024px){
  .nav-links{display:flex}
  .nav-search{display:block}
  .nav-toggle{display:none}
  .mobile-drawer{display:none}
}

/* ============ 小 Hero ============ */
.page-hero{
  position:relative;overflow:hidden;
  background-color:#070B1A;
  background-image:
    linear-gradient(100deg,rgba(7,11,26,.97) 0%,rgba(7,11,26,.86) 42%,rgba(7,11,26,.55) 100%),
    url('/assets/images/backpic/back-2.webp');
  background-size:cover;
  background-position:center right;
  padding:44px 0 46px;
}
.page-hero::after{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:
    radial-gradient(1.4px 1.4px at 18% 26%,rgba(255,255,255,.7),transparent),
    radial-gradient(1.2px 1.2px at 62% 18%,rgba(52,227,196,.65),transparent),
    radial-gradient(1.6px 1.6px at 78% 62%,rgba(255,255,255,.5),transparent),
    radial-gradient(1.2px 1.2px at 34% 74%,rgba(59,91,255,.75),transparent),
    radial-gradient(1.1px 1.1px at 88% 34%,rgba(255,255,255,.45),transparent);
  opacity:.85;
}
.page-hero .container{position:relative;z-index:1}
.breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--c-text-3);margin-bottom:18px}
.breadcrumb a{color:var(--c-text-2)}
.breadcrumb a:hover{color:var(--c-accent)}
.breadcrumb .sep{color:#4A5578}
.breadcrumb .now{color:var(--c-text-2);max-width:280px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.hero-eyebrow{display:inline-flex;align-items:center;gap:8px;margin-bottom:14px}
.page-hero h1{
  font-size:clamp(28px,4.2vw,44px);line-height:1.22;font-weight:700;letter-spacing:-.02em;color:#FFFFFF;
  max-width:820px;
}
.page-hero .hero-sub{
  margin-top:16px;max-width:640px;font-size:17px;line-height:1.85;color:var(--c-text-2);
}
.hero-tabs{display:flex;flex-wrap:wrap;gap:10px;margin-top:26px}
.hero-tabs a{
  display:inline-flex;align-items:center;height:38px;padding:0 16px;border-radius:999px;
  border:1px solid rgba(255,255,255,.16);background:rgba(255,255,255,.06);
  color:var(--c-text-2);font-size:14px;backdrop-filter:blur(6px);
  transition:border-color var(--ease),color var(--ease),background-color var(--ease),transform var(--ease);
}
.hero-tabs a:hover{border-color:var(--c-accent);color:#FFFFFF;background:rgba(52,227,196,.12);transform:translateY(-1px)}

/* ============ 板块通用 ============ */
main{display:block;background:var(--c-bg)}
.section{padding:64px 0;scroll-margin-top:88px}
@media (min-width:1024px){.section{padding:96px 0}}
.section-alt{background:var(--c-bg-2)}
.section-head{max-width:760px;margin-bottom:36px}
.section-head.center{margin-left:auto;margin-right:auto;text-align:center}
.section-head h2{font-size:clamp(23px,3vw,32px);letter-spacing:-.015em;color:#FFFFFF}
.section-head p{margin-top:14px;font-size:16px;color:var(--c-text-2);line-height:1.9}
.section-head .eyebrow{
  display:inline-flex;align-items:center;gap:8px;margin-bottom:14px;
  font-size:13px;font-weight:600;letter-spacing:.08em;text-transform:uppercase;color:var(--c-accent);
}
.section-head .eyebrow::before{content:"";width:22px;height:2px;border-radius:2px;background:linear-gradient(90deg,var(--c-primary),var(--c-accent))}

/* ============ 统计数字卡 ============ */
.stat-grid{display:grid;grid-template-columns:1fr;gap:20px}
@media (min-width:640px){.stat-grid{grid-template-columns:repeat(3,1fr)}}
.stat-card{
  background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--radius-card);
  padding:26px 24px;box-shadow:var(--shadow-card);
  transition:transform var(--ease),border-color var(--ease),box-shadow var(--ease);
}
.stat-card:hover{transform:translateY(-4px);border-color:rgba(59,91,255,.5);box-shadow:var(--shadow-card-hover)}
.stat-num{font-size:clamp(28px,3.4vw,38px);font-weight:700;font-variant-numeric:tabular-nums;color:#FFFFFF;line-height:1.1}
.stat-num em{font-style:normal;font-size:.52em;font-weight:600;color:var(--c-accent);margin-left:6px}
.stat-label{margin-top:10px;font-size:15px;font-weight:600;color:var(--c-text)}
.stat-note{margin-top:6px;font-size:14px;color:var(--c-text-3);line-height:1.75}

/* ============ 步骤条 ============ */
.steps{position:relative;display:grid;grid-template-columns:1fr;gap:20px;counter-reset:step}
@media (min-width:1024px){.steps{grid-template-columns:repeat(4,1fr);gap:22px}}
.step-card{
  position:relative;background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--radius-card);
  padding:28px 24px 26px;box-shadow:var(--shadow-card);
  transition:transform var(--ease),border-color var(--ease),box-shadow var(--ease);
}
.step-card::before{
  content:"";position:absolute;left:24px;right:24px;top:0;height:2px;border-radius:2px;
  background:linear-gradient(90deg,var(--c-primary),var(--c-accent));opacity:.85;
}
.step-card:hover{transform:translateY(-4px);border-color:rgba(59,91,255,.5);box-shadow:var(--shadow-card-hover)}
.step-num{
  display:inline-flex;align-items:center;justify-content:center;
  width:44px;height:44px;border-radius:999px;
  background:linear-gradient(135deg,rgba(59,91,255,.9),rgba(52,227,196,.85));
  color:#FFFFFF;font-weight:700;font-size:17px;font-variant-numeric:tabular-nums;
  box-shadow:0 8px 20px rgba(59,91,255,.35);
}
.step-card h3{margin-top:18px;font-size:19px;color:#FFFFFF}
.step-card .step-time{margin-top:8px;font-size:13px;color:var(--c-accent);font-variant-numeric:tabular-nums}
.step-card p{margin-top:12px;font-size:15px;color:var(--c-text-2);line-height:1.9}
.step-list{margin-top:14px;display:grid;gap:8px}
.step-list li{position:relative;padding-left:20px;font-size:14px;color:var(--c-text-3);line-height:1.8}
.step-list li::before{
  content:"";position:absolute;left:0;top:11px;width:8px;height:8px;border-radius:999px;
  background:var(--c-accent);box-shadow:0 0 0 3px rgba(52,227,196,.14);
}
@media (max-width:1023px){
  .step-card{padding:24px 20px}
}

/* ============ 资源卡 ============ */
.res-grid{display:grid;grid-template-columns:1fr;gap:20px}
@media (min-width:640px){.res-grid{grid-template-columns:repeat(2,1fr)}}
@media (min-width:1024px){.res-grid{grid-template-columns:repeat(3,1fr)}}
.res-card{
  display:flex;flex-direction:column;background:var(--c-surface);border:1px solid var(--c-line);
  border-radius:var(--radius-card);overflow:hidden;box-shadow:var(--shadow-card);
  transition:transform var(--ease),border-color var(--ease),box-shadow var(--ease);
}
.res-card:hover{transform:translateY(-4px);border-color:rgba(59,91,255,.5);box-shadow:var(--shadow-card-hover)}
.res-cover{position:relative;overflow:hidden}
.res-cover img{width:100%;aspect-ratio:16/9;object-fit:cover;transition:transform 320ms ease-out}
.res-card:hover .res-cover img{transform:scale(1.04)}
.res-cover .badge{position:absolute;left:14px;top:14px}
.res-body{padding:22px 22px 24px;display:flex;flex-direction:column;flex:1}
.res-body h3{font-size:18px;color:#FFFFFF;line-height:1.45}
.res-body p{margin-top:10px;font-size:15px;color:var(--c-text-2);line-height:1.85}
.res-meta{margin-top:14px;display:flex;flex-wrap:wrap;gap:8px}
.res-foot{margin-top:auto;padding-top:18px}

/* ============ 误区对照 ============ */
.myth-grid{display:grid;grid-template-columns:1fr;gap:20px}
@media (min-width:900px){.myth-grid{grid-template-columns:repeat(2,1fr)}}
.myth-card{
  background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--radius-card);
  padding:24px 24px 22px;box-shadow:var(--shadow-card);
  transition:transform var(--ease),border-color var(--ease),box-shadow var(--ease);
}
.myth-card:hover{transform:translateY(-3px);border-color:rgba(59,91,255,.45);box-shadow:var(--shadow-card-hover)}
.myth-line{display:flex;gap:12px;align-items:flex-start}
.myth-tag{
  flex-shrink:0;display:inline-flex;align-items:center;justify-content:center;
  height:24px;padding:0 10px;border-radius:999px;font-size:12px;font-weight:600;line-height:1;
  margin-top:5px;
}
.myth-tag.wrong{background:rgba(255,107,107,.14);color:#FF8F8F}
.myth-tag.right{background:rgba(52,227,196,.12);color:var(--c-accent)}
.myth-line p{font-size:15.5px;color:var(--c-text-2);line-height:1.9}
.myth-line p strong{color:#FFFFFF;font-weight:600}
.myth-divider{height:1px;background:rgba(255,255,255,.06);margin:16px 0}

/* ============ FAQ ============ */
.faq-wrap{max-width:880px;margin:0 auto}
.faq-item{position:relative;border-bottom:1px solid rgba(255,255,255,.08)}
.faq-item:first-child{border-top:1px solid rgba(255,255,255,.08)}
.faq-item::before{
  content:"";position:absolute;left:0;top:14px;bottom:14px;width:3px;border-radius:3px;
  background:var(--c-accent);opacity:0;transition:opacity var(--ease);
}
.faq-item.open::before{opacity:1}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;
  background:transparent;border:0;padding:22px 0 22px 18px;text-align:left;
  color:#FFFFFF;font-size:16.5px;font-weight:600;line-height:1.6;
  transition:color var(--ease);
}
.faq-q:hover{color:var(--c-accent)}
.faq-icon{flex-shrink:0;width:22px;height:22px;color:var(--c-text-3);transition:transform var(--ease),color var(--ease)}
.faq-item.open .faq-icon{transform:rotate(180deg);color:var(--c-accent)}
.faq-a{max-height:0;overflow:hidden;transition:max-height 240ms ease-out}
.faq-a p{padding:0 0 22px 18px;font-size:15.5px;color:var(--c-text-2);line-height:1.9;max-width:760px}

/* ============ CTA 通栏 ============ */
.cta-band{
  position:relative;overflow:hidden;background:#070B1A;
  background-image:
    radial-gradient(760px 320px at 22% 12%,rgba(59,91,255,.30),transparent 70%),
    radial-gradient(620px 300px at 84% 88%,rgba(52,227,196,.20),transparent 72%),
    linear-gradient(rgba(255,255,255,.035) 1px,transparent 1px),
    linear-gradient(90deg,rgba(255,255,255,.035) 1px,transparent 1px);
  background-size:auto,auto,46px 46px,46px 46px;
  padding:68px 0;
  scroll-margin-top:88px;
}
@media (min-width:1024px){.cta-band{padding:88px 0}}
.cta-inner{
  position:relative;z-index:1;border-radius:var(--radius-glass);
  border:1px solid rgba(255,255,255,.10);
  background:rgba(14,21,51,.55);
  backdrop-filter:blur(14px);
  box-shadow:inset 0 1px 0 rgba(255,255,255,.10),0 22px 60px rgba(3,6,20,.6);
  padding:36px 26px;text-align:center;
}
@media (min-width:768px){.cta-inner{padding:52px 48px}}
.cta-inner h2{font-size:clamp(23px,3vw,32px);color:#FFFFFF;max-width:760px;margin:0 auto}
.cta-inner p{margin-top:14px;font-size:16px;color:var(--c-text-2);max-width:640px;margin-left:auto;margin-right:auto}
.cta-actions{margin-top:28px;display:flex;flex-direction:column;gap:12px;align-items:stretch;max-width:360px;margin-left:auto;margin-right:auto}
@media (min-width:640px){.cta-actions{flex-direction:row;justify-content:center;align-items:center;max-width:none}}
.cta-note{margin-top:20px;font-size:13.5px;color:var(--c-text-3)}

/* ============ 页脚 ============ */
.site-footer{background:#05080F;border-top:1px solid rgba(255,255,255,.06);padding:56px 0 26px}
.footer-grid{display:grid;grid-template-columns:1fr;gap:34px}
@media (min-width:768px){.footer-grid{grid-template-columns:1.4fr 1fr 1fr 1fr;gap:28px}}
.footer-brand{display:flex;align-items:center;gap:10px;color:#FFFFFF;font-weight:700;font-size:17px}
.footer-brand svg{width:30px;height:30px}
.footer-desc{margin-top:14px;font-size:14.5px;color:var(--c-text-3);line-height:1.9;max-width:360px}
.footer-contact{margin-top:12px;font-size:13.5px;color:var(--c-text-2)}
.footer-col h3{font-size:15px;color:#FFFFFF;font-weight:600;margin-bottom:14px}
.footer-col ul{display:grid;gap:10px}
.footer-col a{font-size:14.5px;color:var(--c-text-3)}
.footer-col a:hover{color:var(--c-accent)}
.footer-bottom{
  margin-top:40px;padding-top:20px;border-top:1px solid rgba(255,255,255,.06);
  display:flex;flex-direction:column;gap:8px;justify-content:space-between;
  font-size:13px;color:var(--c-text-3);
}
@media (min-width:768px){.footer-bottom{flex-direction:row;align-items:center}}

.anchor-offset{display:block;height:0;scroll-margin-top:96px}

@media (prefers-reduced-motion:reduce){
  *{transition:none!important;animation:none!important;scroll-behavior:auto!important}
}