/* ============ 设计令牌：深空玻璃拟态 ============ */
      :root{
        --bg0:#0f172a; --bg1:#1e1b4b; --bg2:#312e81;
        --text:#eef2ff; --text-2:#aab3d9; --text-3:#8b93b8;
        --accent:#6ea8ff; --accent-2:#22d3ee; --gold:#ffd700;
        --stroke:rgba(148,182,255,.16); --stroke-strong:rgba(148,182,255,.42);
        --surface:rgba(255,255,255,.055);
        --surface-2:rgba(255,255,255,.035);
        --radius:18px; --radius-sm:12px;
        --shadow:0 14px 40px rgba(2,6,23,.42);
        --font:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei","Helvetica Neue",Arial,sans-serif;
      }
      *{box-sizing:border-box;margin:0;padding:0}
      html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
      body{
        font-family:var(--font); color:var(--text); line-height:1.6;
        background:var(--bg0); min-height:100vh; overflow-x:hidden;
        background-image:
          radial-gradient(1px 1px at 18% 22%, rgba(255,255,255,.55) 48%, transparent 50%),
          radial-gradient(1.5px 1.5px at 34% 64%, rgba(255,255,255,.4) 48%, transparent 50%),
          radial-gradient(1px 1px at 52% 14%, rgba(255,255,255,.5) 48%, transparent 50%),
          radial-gradient(1.2px 1.2px at 68% 44%, rgba(255,255,255,.42) 48%, transparent 50%),
          radial-gradient(1px 1px at 82% 18%, rgba(255,255,255,.5) 48%, transparent 50%),
          radial-gradient(1.4px 1.4px at 90% 70%, rgba(255,255,255,.38) 48%, transparent 50%),
          radial-gradient(1px 1px at 8% 82%, rgba(255,255,255,.45) 48%, transparent 50%),
          radial-gradient(1.2px 1.2px at 46% 88%, rgba(255,255,255,.4) 48%, transparent 50%),
          radial-gradient(1400px 900px at 78% -12%, rgba(64,96,255,.28), transparent 62%),
          radial-gradient(1100px 800px at -8% 30%, rgba(42,120,255,.16), transparent 60%),
          radial-gradient(900px 700px at 52% 108%, rgba(34,211,238,.13), transparent 62%),
          linear-gradient(180deg,var(--bg1),var(--bg0) 42%,var(--bg2));
        background-attachment:fixed;
      }
      a{color:inherit;text-decoration:none}
      img{max-width:100%;display:block}
      .wrap{width:min(1220px,100% - 48px);margin-inline:auto}
      @media (max-width:479px){ .wrap{width:min(100% - 28px,1220px)} }
      @media (max-width:1100px){ body{background-attachment:scroll} }

      :focus-visible{outline:2px solid var(--accent-2);outline-offset:3px;border-radius:4px}

      /* ============ 公告跑马灯 ============ */
      .marquee{background:linear-gradient(90deg,rgba(110,168,255,.16),rgba(34,211,238,.14));border-bottom:1px solid var(--stroke);overflow:hidden;position:relative}
      .marquee .m-track{display:inline-block;white-space:nowrap;padding:9px 0 10px;animation:m-scroll 26s linear infinite;will-change:transform}
      .marquee .m-track b{color:var(--gold);font-weight:700;margin-right:10px}
      .marquee:hover .m-track,.marquee:focus-within .m-track{animation-play-state:paused}
      @keyframes m-scroll{from{transform:translateX(0)}to{transform:translateX(-50%)}}
      .marquee p{position:absolute;left:12px;top:0;bottom:0;margin:auto;height:18px;font-size:12px;line-height:18px;color:var(--text-3);background:rgba(15,23,42,.78);backdrop-filter:blur(8px);-webkit-backdrop-filter:blur(8px);border:1px solid rgba(148,182,255,.2);border-radius:20px;padding:0 10px;display:none}
      /* 双轨复制保证无缝：第一个轨道显示原文案+占位轨道 */
      .m-track .m-sep{display:inline-block;width:80px}
      @media (max-width:767px){ .marquee .m-track{animation-duration:34s} }

      /* ============ 导航栏 ============ */
      .top-nav{position:sticky;top:0;z-index:60;background:rgba(13,19,38,.74);backdrop-filter:blur(18px) saturate(150%);-webkit-backdrop-filter:blur(18px) saturate(150%);border-bottom:1px solid var(--stroke)}
      .nav-in{display:flex;align-items:center;gap:14px;min-height:60px}
      .site-name{font-size:19px;font-weight:800;letter-spacing:.3px;background:linear-gradient(92deg,#7db4ff,var(--accent-2));-webkit-background-clip:text;background-clip:text;color:transparent;white-space:nowrap}
      .site-name .star{color:var(--gold);-webkit-text-fill-color:var(--gold);margin-right:2px}
      .nav-center{display:flex;align-items:center;gap:2px;margin-left:auto;flex-wrap:nowrap;overflow-x:auto;scrollbar-width:none}
      .nav-center::-webkit-scrollbar{display:none}
      .nav-link{display:inline-flex;align-items:center;gap:4px;padding:8px 11px;border-radius:10px;font-size:14.5px;color:var(--text-2);white-space:nowrap;transition:.2s}
      .nav-link:hover{color:var(--text);background:var(--surface)}
      .nav-link.active{color:var(--accent-2);box-shadow:inset 0 -2px 0 var(--accent-2)}
      .nav-link.gold{color:var(--gold)}
      .nav-burger{display:none;margin-left:auto;width:44px;height:44px;min-width:44px;border:1px solid var(--stroke);border-radius:12px;background:var(--surface);color:var(--text);cursor:pointer;align-items:center;justify-content:center;transition:.2s}
      .nav-burger:hover{background:rgba(255,255,255,.1)}
      .nav-burger[aria-expanded="true"]{border-color:var(--accent-2)}
      .switch-btn{display:inline-flex;align-items:center;gap:6px;padding:8px 13px;border-radius:12px;border:1px solid var(--stroke-strong);background:linear-gradient(135deg,rgba(110,168,255,.16),rgba(34,211,238,.12));color:var(--accent-2);font-size:13px;font-weight:700;white-space:nowrap;transition:.2s;flex-shrink:0;cursor:pointer;text-decoration:none}
      .switch-btn:hover{color:var(--text);border-color:var(--accent-2);box-shadow:0 0 16px rgba(34,211,238,.35);background:rgba(110,168,255,.22)}
      /* 移动端抽屉 */
      .nav-drawer{display:none}
      @media (max-width:1023px){
        .nav-center{display:none}
        .nav-burger{display:flex}
        .nav-drawer{position:fixed;top:60px;left:0;right:0;z-index:59;background:rgba(13,18,40,.97);backdrop-filter:blur(20px);-webkit-backdrop-filter:blur(20px);border-bottom:1px solid var(--stroke);max-height:calc(100dvh - 60px);overflow-y:auto;display:none;flex-direction:column;padding:10px 14px 18px}
        .nav-drawer.open{display:flex;animation:drawer-in .22s ease}
        @keyframes drawer-in{from{opacity:0;transform:translateY(-8px)}to{opacity:1;transform:none}}
        .nav-drawer a{display:flex;align-items:center;gap:8px;padding:13px 12px;border-radius:12px;font-size:15px;color:var(--text-2)}
        .nav-drawer a:active{background:var(--surface)}
        .nav-drawer a.active{color:var(--accent-2);background:rgba(110,168,255,.09)}
        .nav-drawer a.gold{color:var(--gold)}
        .nav-drawer a:not(:last-child){border-bottom:1px solid rgba(148,182,255,.08)}
      }

      /* ============ Hero ============ */
      .hero{padding:64px 0 42px;text-align:center;position:relative}
      .hero-badge{display:inline-flex;align-items:center;gap:8px;padding:7px 16px;border-radius:40px;border:1px solid var(--stroke);background:var(--surface);backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);font-size:13px;color:var(--text-2);margin-bottom:22px}
      .hero-badge svg{color:var(--accent-2)}
      .hero h1{font-size:clamp(34px,6vw,58px);font-weight:900;letter-spacing:.5px;line-height:1.15;background:linear-gradient(95deg,#eaf1ff 0%,#9cc2ff 45%,#44e0f5 100%);-webkit-background-clip:text;background-clip:text;color:transparent;text-shadow:0 0 44px rgba(110,168,255,.28)}
      .hero p{margin-top:14px;font-size:clamp(15px,2.4vw,19px);color:var(--text-2)}
      .hero .hint{margin-top:7px;font-size:13px;color:var(--text-3)}
      @media (max-width:479px){ .hero{padding:44px 0 30px} }

      /* ============ 区块标题 ============ */
      .section-title{display:flex;align-items:center;gap:12px;font-size:clamp(21px,3.4vw,27px);font-weight:800;margin:54px 0 26px;letter-spacing:.3px}
      .section-title .st-ic{display:inline-flex;align-items:center;justify-content:center;width:44px;height:44px;border-radius:14px;background:linear-gradient(135deg,rgba(110,168,255,.22),rgba(34,211,238,.16));border:1px solid var(--stroke);color:var(--accent-2);flex:none}
      .section-title::after{content:"";flex:1;height:1px;background:linear-gradient(90deg,var(--stroke),transparent)}

      /* ============ 工具卡片 ============ */
      .grid{display:grid;gap:20px;grid-template-columns:repeat(4,minmax(0,1fr))}
      @media (max-width:1279px){ .grid{grid-template-columns:repeat(3,minmax(0,1fr))} }
      @media (max-width:1023px){ .grid{grid-template-columns:repeat(2,minmax(0,1fr))} }
      @media (max-width:639px){ .grid{grid-template-columns:1fr} }
      .card{display:flex;flex-direction:column;background:linear-gradient(165deg,rgba(255,255,255,.085),rgba(255,255,255,.028));border:1px solid var(--stroke);border-radius:var(--radius);padding:22px 20px 18px;backdrop-filter:blur(16px) saturate(150%);-webkit-backdrop-filter:blur(16px) saturate(150%);box-shadow:var(--shadow),inset 0 1px 0 rgba(255,255,255,.08);transition:transform .25s ease,border-color .25s ease,box-shadow .25s ease;position:relative;overflow:hidden}
      .card::before{content:"";position:absolute;inset:0 0 auto;height:1px;background:linear-gradient(90deg,transparent,rgba(255,255,255,.28),transparent);opacity:0;transition:.25s}
      .card:hover{transform:translateY(-5px);border-color:var(--stroke-strong);box-shadow:0 20px 46px rgba(2,6,23,.5),0 0 0 1px rgba(110,168,255,.14),inset 0 1px 0 rgba(255,255,255,.1)}
      .card:hover::before{opacity:1}
      .card-ic{width:52px;height:52px;border-radius:15px;display:flex;align-items:center;justify-content:center;background:linear-gradient(140deg,rgba(110,168,255,.28),rgba(34,211,238,.14));border:1px solid rgba(148,182,255,.3);color:#bfdcff;margin-bottom:14px;flex:none;transition:.25s}
      .card:hover .card-ic{color:#fff;box-shadow:0 0 22px rgba(110,168,255,.35)}
      .card h3{font-size:17.5px;font-weight:700;line-height:1.35;margin-bottom:8px}
      .card h3 a{color:inherit}
      .card h3 a:hover{color:var(--accent-2)}
      .card .external-mark{font-size:.72em;vertical-align:2px;opacity:.75;margin-left:4px}
      .card .desc{font-size:14px;color:var(--text-2);flex:1;min-height:64px}
      .tags{display:flex;flex-wrap:wrap;gap:7px;margin:12px 0 16px}
      .tag{font-size:12px;padding:3px 10px;border-radius:30px;background:rgba(110,168,255,.12);border:1px solid rgba(148,182,255,.22);color:#b9ccf2}
      .tag.alt{background:rgba(34,211,238,.1);border-color:rgba(34,211,238,.24);color:#a8e6f2}
      .card-link{display:inline-flex;align-items:center;gap:6px;font-size:14.5px;font-weight:600;color:var(--accent-2);padding:9px 2px;border-radius:8px;transition:.2s}
      .card-link:hover{color:#fff;background:rgba(110,168,255,.14);padding-left:12px}
      /* 卡片2 内嵌子块 */
      .card-sub{margin-top:14px;padding-top:14px;border-top:1px dashed rgba(148,182,255,.28)}
      .card-sub .sub-title{display:flex;align-items:center;gap:7px;font-size:15px;font-weight:600;color:#cdd8f5;margin-bottom:10px}
      .card-sub .sub-title a:hover{color:var(--accent-2)}

      /* ============ 影视区 ============ */
      .movie-banner{position:relative;border-radius:26px;overflow:hidden;background:linear-gradient(150deg,rgba(49,54,110,.92),rgba(20,26,60,.95));border:1px solid var(--stroke);box-shadow:var(--shadow),inset 0 1px 0 rgba(255,255,255,.08);padding:clamp(26px,4vw,46px)}
      .movie-banner::before{content:"";position:absolute;top:-40%;right:-12%;width:56%;height:150%;background:radial-gradient(closest-side,rgba(110,168,255,.24),transparent);pointer-events:none}
      .movie-banner::after{content:"";position:absolute;bottom:-45%;left:-10%;width:50%;height:140%;background:radial-gradient(closest-side,rgba(34,211,238,.16),transparent);pointer-events:none}
      .movie-in{position:relative;z-index:1;max-width:760px}
      .m-head{display:flex;align-items:center;gap:14px;margin-bottom:16px}
      .m-ic{width:56px;height:56px;border-radius:16px;display:flex;align-items:center;justify-content:center;background:linear-gradient(140deg,rgba(255,215,0,.2),rgba(255,140,0,.1));border:1px solid rgba(255,215,0,.32);color:var(--gold);flex:none}
      .m-title{font-size:clamp(24px,4vw,32px);font-weight:900;letter-spacing:.5px;background:linear-gradient(92deg,#fff,#ffd76e);-webkit-background-clip:text;background-clip:text;color:transparent}
      .m-notice{display:flex;flex-direction:column;gap:10px;margin-bottom:24px}
      .tag-movie{display:block;font-size:14px;line-height:1.75;color:#c6cdf0;background:rgba(255,255,255,.045);border:1px solid rgba(148,182,255,.16);border-left:3px solid rgba(255,215,0,.6);border-radius:10px;padding:10px 14px}
      .tag-movie strong{color:#ffe9a8}
      .m-btns{display:flex;flex-wrap:wrap;gap:12px;align-items:center}
      .movie-btn{display:inline-flex;align-items:center;gap:9px;padding:13px 22px;border-radius:13px;font-size:15px;font-weight:700;cursor:pointer;transition:.22s;line-height:1.4;text-align:left}
      .movie-btn svg{flex:none}
      .movie-btn.primary{background:linear-gradient(95deg,#3464f2,#2452d0);color:#fff;box-shadow:0 10px 28px rgba(52,100,242,.4),inset 0 1px 0 rgba(255,255,255,.25)}
      .movie-btn.primary:hover{transform:translateY(-2px);box-shadow:0 14px 34px rgba(52,100,242,.55),inset 0 1px 0 rgba(255,255,255,.25)}
      .movie-btn.ghost{background:rgba(255,255,255,.06);border:1px solid var(--stroke);color:var(--text)}
      .movie-btn.ghost:hover{background:rgba(255,255,255,.12);border-color:var(--stroke-strong)}
      @media (max-width:639px){ .movie-btn{width:100%;justify-content:flex-start} }

      /* ============ Footer ============ */
      footer{margin-top:70px;border-top:1px solid var(--stroke);background:rgba(15,23,42,.6);backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px)}
      .f-in{padding:30px 0 34px;text-align:center;line-height:2.1;font-size:14.5px;color:var(--text-2)}
      .f-in .f-mail{display:inline-flex;align-items:center;gap:7px}
      .f-in .f-mail svg{color:var(--accent-2)}
      .f-links{display:flex;justify-content:center;flex-wrap:wrap;gap:8px 18px;margin-top:10px;font-size:13.5px}
      .f-links a{color:var(--text-3)}
      .f-links a:hover{color:var(--accent-2)}

      /* ============ 返回顶部 ============ */
      .to-top{position:fixed;right:20px;bottom:22px;z-index:70;width:46px;height:46px;border-radius:50%;border:1px solid var(--stroke-strong);background:rgba(20,26,58,.85);backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);color:var(--accent-2);cursor:pointer;display:flex;align-items:center;justify-content:center;opacity:0;visibility:hidden;transform:translateY(10px);transition:.25s}
      .to-top.show{opacity:1;visibility:visible;transform:none}
      .to-top:hover{background:rgba(110,168,255,.2)}

      /* ============ 进入动画（尊重系统减弱动效） ============ */
      @media (prefers-reduced-motion: no-preference){
        .reveal{opacity:0;transform:translateY(16px);transition:opacity .55s ease,transform .55s ease}
        .reveal.in-view{opacity:1;transform:none}
        .stagger .reveal:nth-child(2){transition-delay:.05s}
        .stagger .reveal:nth-child(3){transition-delay:.1s}
        .stagger .reveal:nth-child(4){transition-delay:.15s}
      }
      @media (prefers-reduced-motion: reduce){
        html{scroll-behavior:auto}
        *{animation-duration:.001s!important;transition-duration:.001s!important}
      }
      @media (prefers-color-scheme: light){
        /* 深空主题不随系统切换，保持品牌一致 */
      }