:root{
    --primary:#18181B; --secondary:#3F3F46; --accent:#2563EB; --accent-ink:#1D4ED8;
    --bg:#FAFAFA; --fg:#09090B; --muted:#EEF1F5; --muted-2:#E4E4E7; --border:#E4E4E7; --card:#FFFFFF;
    --radius:20px;
    --s1:8px;--s2:16px;--s3:24px;--s4:40px;--s5:64px;
    --shadow-sm:0 1px 2px rgba(9,9,11,.04),0 1px 3px rgba(9,9,11,.06);
    --shadow-md:0 4px 12px rgba(9,9,11,.06),0 12px 32px rgba(9,9,11,.08);

    --font-head:"PingFang SC","Microsoft YaHei",system-ui,sans-serif;
    --font-body:"PingFang SC","Microsoft YaHei",system-ui,sans-serif;

    --accent-soft:rgba(37,99,235,.12);
    --accent-ring:rgba(37,99,235,.22);
    --accent-glow:rgba(37,99,235,.40);
    --accent-line:#A8C1F4;
    --accent-wash:#EAF0FD;
    --header-solid:#F4F4F2;
    --header-bg:rgba(250,250,250,.82);
    --feature-dim:rgba(250,250,250,.68);
    --live-ring:rgba(34,197,94,.25);
    --check-bg:rgba(34,197,94,.16);
  }
  @media (prefers-color-scheme:dark){:root{
    --bg:#0B0B0E;--fg:#FAFAFA;--card:#141418;--primary:#FAFAFA;--secondary:#A1A1AA;
    --muted:#1C1C22;--muted-2:#26262E;--border:#26262E;--accent:#3B82F6;--accent-ink:#60A5FA;
    --shadow-md:0 4px 12px rgba(0,0,0,.4),0 12px 32px rgba(0,0,0,.5);--shadow-sm:0 1px 3px rgba(0,0,0,.4);

    --accent-soft:rgba(59,130,246,.16);
    --accent-ring:rgba(59,130,246,.28);
    --accent-glow:rgba(59,130,246,.40);
    --accent-line:#2E4E86;
    --accent-wash:#16202F;
    --header-solid:#0F0F13;
    --header-bg:rgba(11,11,14,.82);
    --feature-dim:rgba(11,11,14,.68);
  }}
  *{box-sizing:border-box;margin:0;padding:0}
  html{scroll-behavior:smooth;scroll-padding-top:80px}
  body{font-family:var(--font-body);background:var(--bg);color:var(--fg);line-height:1.6;-webkit-font-smoothing:antialiased;overflow-x:hidden}
  h1,h2,h3,.num{font-family:var(--font-head);letter-spacing:-.02em;line-height:1.1}
  a{color:inherit;text-decoration:none}
  .wrap{max-width:1120px;margin:0 auto;padding:0 var(--s3)}
  .todo{font-family:var(--font-head);font-size:11px;color:var(--accent);background:var(--accent-soft);border-radius:5px;padding:1px 7px;vertical-align:middle;margin-left:8px;font-weight:500;white-space:nowrap}

  header{position:sticky;top:0;z-index:50;background:var(--header-solid);border-bottom:1px solid var(--border)}
  @supports (backdrop-filter:blur(1px)) or (-webkit-backdrop-filter:blur(1px)){
    header{background:var(--header-bg);-webkit-backdrop-filter:saturate(180%) blur(12px);backdrop-filter:saturate(180%) blur(12px)}
  }
  .nav{display:flex;align-items:center;justify-content:space-between;height:64px}
  .brand{display:flex;align-items:center;gap:10px;font-family:var(--font-head);font-weight:600;font-size:17px}
  .brand .dot{width:28px;height:28px;border-radius:8px;background:var(--primary);color:var(--bg);display:grid;place-items:center;font-weight:700;font-size:14px}
  .nav-links{display:flex;gap:26px;align-items:center;font-size:14px;color:var(--secondary)}
  .nav-links a{transition:color .2s}.nav-links a:hover{color:var(--fg)}
  .btn{font-family:var(--font-head);font-weight:500;font-size:14px;cursor:pointer;border:none;border-radius:10px;padding:10px 18px;transition:transform .18s,box-shadow .18s,background .2s}
  .btn-primary{background:var(--accent);color:#fff}
  .btn-primary:hover{background:var(--accent-ink);transform:translateY(-1px);box-shadow:0 6px 18px var(--accent-glow)}
  .btn-ghost{background:transparent;color:var(--fg);border:1px solid var(--border)}
  .btn-ghost:hover{border-color:var(--fg)}
  @media(max-width:820px){.nav-links{display:none}}

  .hero{padding:var(--s5) 0 var(--s4);text-align:center}
  .visitor-count{width:max-content;max-width:100%;margin:0 auto 10px;padding:4px 11px;
    border-radius:999px;background:var(--accent-soft);color:var(--secondary);
    font-family:var(--font-head);font-size:12px;letter-spacing:.02em}
  .visitor-count strong{color:var(--accent);font-size:13px}
  .pill{display:inline-flex;align-items:center;gap:8px;font-size:13px;color:var(--secondary);background:var(--muted);border:1px solid var(--border);border-radius:999px;padding:6px 14px;margin-bottom:24px}
  .pill .live{width:7px;height:7px;border-radius:50%;background:#22C55E;box-shadow:0 0 0 3px var(--live-ring)}
  .hero h1{font-size:clamp(38px,6vw,68px);font-weight:700}
  .hero h1 .grad{background:linear-gradient(100deg,var(--accent),#7C3AED);-webkit-background-clip:text;background-clip:text;color:transparent}
  .hero p.lead{max-width:620px;margin:22px auto 0;font-size:clamp(16px,2.2vw,20px);color:var(--secondary)}
  .hero .cta{margin-top:32px;display:flex;gap:12px;justify-content:center;flex-wrap:wrap}
  .hero .proof{margin-top:18px;font-size:13px;color:var(--secondary)}
  .hero .proof strong{color:var(--fg);font-family:var(--font-head)}
  .avatars{display:inline-flex;vertical-align:middle;margin-right:8px}
  .avatars span{width:22px;height:22px;border-radius:50%;border:2px solid var(--bg);margin-left:-8px;background:linear-gradient(135deg,#60A5FA,#A78BFA)}
  .avatars span:first-child{margin-left:0}

  .sec{padding:var(--s5) 0}
  .sec-head{display:flex;align-items:end;justify-content:space-between;margin-bottom:var(--s3);gap:16px}
  .sec-head h2{font-size:clamp(26px,4vw,38px);font-weight:600}
  .sec-head .kicker{font-family:var(--font-head);font-size:13px;font-weight:500;text-transform:uppercase;letter-spacing:.12em;color:var(--accent);margin-bottom:8px}
  .sec-intro{margin-top:10px;color:var(--secondary);font-size:14.5px;max-width:560px}
  .sec-head a.more{font-size:14px;color:var(--secondary);display:inline-flex;align-items:center;gap:4px;transition:gap .2s,color .2s}
  .sec-head a.more:hover{color:var(--fg);gap:8px}

  .bento{display:grid;grid-template-columns:repeat(6,1fr);gap:16px}
  .card{background:var(--card);border:1px solid var(--border);border-radius:var(--radius);padding:var(--s3);box-shadow:var(--shadow-sm);transition:transform .25s cubic-bezier(.2,.7,.3,1),box-shadow .25s,border-color .2s}
  .card:hover{transform:translateY(-4px) scale(1.015);box-shadow:var(--shadow-md);border-color:var(--accent-line)}
  .col-2{grid-column:span 2}.col-3{grid-column:span 3}.col-4{grid-column:span 4}.col-6{grid-column:span 6}
  @media(max-width:860px){.bento{grid-template-columns:repeat(2,1fr)}.col-2,.col-3,.col-4{grid-column:span 1}.col-6{grid-column:span 2}}
  @media(max-width:520px){.bento{grid-template-columns:1fr}.col-2,.col-3,.col-4,.col-6{grid-column:span 1}}
  .ico{width:40px;height:40px;border-radius:11px;display:grid;place-items:center;margin-bottom:16px;background:var(--muted);color:var(--accent)}
  .ico svg{width:20px;height:20px}
  .card h3{font-size:18px;font-weight:600;margin-bottom:8px}
  .card p{font-size:14.5px;color:var(--secondary)}
  .tag{display:inline-block;font-family:var(--font-head);font-size:12px;font-weight:500;color:var(--accent);background:var(--accent-soft);border-radius:6px;padding:3px 9px;margin-bottom:14px}
  .stat .num{font-size:clamp(34px,5vw,52px);font-weight:700}
  .stat .lbl{font-size:13px;color:var(--secondary);margin-top:4px}
  .feature{background:var(--primary);color:var(--bg)}
  .feature h3{color:var(--bg)}.feature p{color:var(--feature-dim)}
  .feature .ico{background:rgba(255,255,255,.12);color:#fff}
  .avatar-lg{width:60px;height:60px;border-radius:16px;background:linear-gradient(135deg,var(--accent),#7C3AED);display:grid;place-items:center;font-family:var(--font-head);font-weight:700;font-size:24px;color:#fff;margin-bottom:18px}

  .showcase-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:18px}
  .showcase-card{min-width:0;overflow:hidden;background:var(--card);border:1px solid var(--border);
    border-radius:22px;box-shadow:var(--shadow-sm);transition:transform .28s cubic-bezier(.2,.7,.3,1),
    box-shadow .28s,border-color .2s}
  .showcase-card:hover{transform:translateY(-6px);box-shadow:var(--shadow-md);border-color:var(--accent-line)}
  .showcase-poster{height:230px;position:relative;overflow:hidden;background:#13251b;color:#f7f3e9;
    isolation:isolate}
  .showcase-poster:before{content:"";position:absolute;inset:0;background:
    radial-gradient(circle at 20% 15%,rgba(255,255,255,.28),transparent 28%),
    linear-gradient(145deg,transparent 35%,rgba(255,255,255,.08));z-index:-1}
  .showcase-card[data-theme="physics"] .showcase-poster{background:#071019;color:#c6ff45}
  .showcase-card[data-theme="ritual"] .showcase-poster{background:#e8e2d5;color:#312b23}
  .showcase-card[data-theme="desktop"] .showcase-poster{background:#080b16;color:#a9c7ff}
  .poster-index{position:absolute;left:18px;top:15px;font:500 11px/1 var(--font-head);
    letter-spacing:.18em;opacity:.68}
  .poster-name{position:absolute;left:20px;bottom:17px;font:600 22px/1 var(--font-head);
    letter-spacing:-.03em;text-transform:uppercase}
  .poster-mark{position:absolute;width:74px;height:74px;left:50%;top:50%;transform:translate(-50%,-50%);
    border-radius:50% 45% 52% 38%;background:currentColor;opacity:.88;box-shadow:0 0 70px currentColor}
  [data-theme="flora"] .poster-mark{border-radius:70% 18% 70% 18%;transform:translate(-50%,-50%) rotate(42deg)}
  [data-theme="ritual"] .poster-mark{width:64px;height:64px;border-radius:4px;box-shadow:12px 12px 0 rgba(49,43,35,.18)}
  [data-theme="desktop"] .poster-mark{width:98px;height:66px;border-radius:12px;
    background:linear-gradient(180deg,#20293d 0 18%,#739de9 19% 100%);
    border:1px solid rgba(255,255,255,.42);box-shadow:0 18px 55px rgba(74,123,220,.52)}
  .poster-orbit{position:absolute;left:50%;top:50%;border:1px solid currentColor;border-radius:50%;opacity:.34}
  .orbit-a{width:170px;height:74px;transform:translate(-50%,-50%) rotate(24deg)}
  .orbit-b{width:88px;height:180px;transform:translate(-50%,-50%) rotate(-32deg)}
  .showcase-copy{padding:22px}
  .showcase-meta{display:flex;align-items:center;justify-content:space-between;gap:10px;
    color:var(--secondary);font:500 11px/1.3 var(--font-head)}
  .showcase-meta .tag{margin:0}
  .showcase-copy h3{font-size:21px;margin-top:18px}
  .showcase-copy p{min-height:69px;margin-top:10px;color:var(--secondary);font-size:14.5px}
  @media(max-width:860px){.showcase-grid{grid-template-columns:1fr 1fr}}
  @media(max-width:580px){.showcase-grid{grid-template-columns:1fr}.showcase-poster{height:190px}.showcase-copy p{min-height:0}}

  .about{background:var(--card);border:1px solid var(--border);border-radius:var(--radius);padding:var(--s4);box-shadow:var(--shadow-sm)}
  .about .top{display:flex;gap:24px;align-items:center;flex-wrap:wrap}
  .about h2{font-size:clamp(24px,3.4vw,34px)}
  .about .role{font-size:14px;color:var(--secondary);margin-top:4px}
  .about .body{margin-top:24px;display:grid;grid-template-columns:1fr 1fr;gap:24px}
  .about .body p{color:var(--secondary);font-size:15.5px}
  .about .body p strong{color:var(--fg)}
  @media(max-width:640px){.about .body{grid-template-columns:1fr}}

  .tabs{display:flex;gap:8px;flex-wrap:wrap;margin-bottom:var(--s3)}
  .tabs button{font-family:var(--font-head);font-size:13.5px;font-weight:500;cursor:pointer;border:1px solid var(--border);background:var(--card);color:var(--secondary);border-radius:999px;padding:7px 16px;transition:all .18s}
  .tabs button.on{background:var(--primary);color:var(--bg);border-color:var(--primary)}
  .arch{background:var(--card);border:1px solid var(--border);border-radius:var(--radius);padding:6px var(--s3);box-shadow:var(--shadow-sm)}
  .arch a{display:grid;grid-template-columns:56px 1fr auto auto;gap:18px;align-items:baseline;padding:18px 0;border-top:1px solid var(--border);transition:color .2s}

  .arch a.first-vis{border-top:none}
  .arch a:hover .t{color:var(--accent)}
  .arch .no{font-family:var(--font-head);font-size:13px;color:var(--secondary)}
  .arch .t{font-weight:500;font-size:15.5px}
  .arch .cat{font-family:var(--font-head);font-size:11px;color:var(--accent);background:var(--accent-soft);border-radius:5px;padding:2px 8px;white-space:nowrap}
  .arch .m{font-size:12.5px;color:var(--secondary);font-family:var(--font-head);white-space:nowrap}
  @media(max-width:640px){.arch a{grid-template-columns:44px 1fr;gap:10px}.arch .cat,.arch .m{display:none}}

  .faq{max-width:760px;margin:0 auto;border-top:1px solid var(--border)}
  .faq details{border-bottom:1px solid var(--border)}
  .faq summary{list-style:none;cursor:pointer;padding:20px 4px;display:flex;justify-content:space-between;align-items:center;gap:16px;font-family:var(--font-head);font-weight:500;font-size:16.5px}
  .faq summary::-webkit-details-marker{display:none}
  .faq summary .ic{width:18px;height:18px;flex-shrink:0;color:var(--secondary);transition:transform .2s}
  .faq details[open] summary .ic{transform:rotate(45deg);color:var(--accent)}
  .faq .a{padding:0 4px 22px;color:var(--secondary);font-size:15px;max-width:64ch}

  .sub{background:var(--card);border:1px solid var(--border);border-radius:28px;box-shadow:var(--shadow-sm);overflow:hidden;display:grid;grid-template-columns:1fr .9fr}
  .sub .left{padding:var(--s5) var(--s4)}
  .sub .left h2{font-size:clamp(28px,4vw,42px);font-weight:700}
  .sub .left p{color:var(--secondary);margin-top:14px;max-width:42ch}
  .sub .email{margin-top:26px;display:flex;gap:10px;max-width:420px}
  .sub .email input{flex:1;font-family:var(--font-body);font-size:15px;padding:13px 16px;border-radius:12px;border:1px solid var(--border);background:var(--bg);color:var(--fg)}
  .sub .email input:focus{outline:none;border-color:var(--accent);box-shadow:0 0 0 3px var(--accent-ring)}
  .sub .hint{margin-top:12px;font-size:12.5px;color:var(--secondary)}
  .sub .right{background:linear-gradient(150deg,var(--accent-wash),var(--card));border-left:1px solid var(--border);display:flex;flex-direction:column;align-items:center;justify-content:center;padding:var(--s4);text-align:center}
  .qr{width:180px;height:180px;border-radius:16px;background:#fff;border:1px solid var(--border);display:grid;place-items:center;position:relative;overflow:hidden}
  .qr img{width:100%;height:100%;object-fit:contain;display:block;padding:6px;box-sizing:border-box}

  .qr .qgrid{width:132px;height:132px;background:
    repeating-linear-gradient(0deg,var(--fg) 0 6px,transparent 6px 12px),
    repeating-linear-gradient(90deg,var(--fg) 0 6px,transparent 6px 12px);
    opacity:.14;border-radius:6px}
  .qr .note{position:absolute;font-size:11px;color:var(--secondary);font-family:var(--font-head);text-align:center;padding:0 12px}
  .sub .right .ql{margin-top:16px;font-size:14px;font-weight:600;font-family:var(--font-head)}
  .sub .right .qs{font-size:12.5px;color:var(--secondary);margin-top:4px}
  @media(max-width:760px){.sub{grid-template-columns:1fr}.sub .right{border-left:none;border-top:1px solid var(--border)}.sub .email{flex-direction:column}}

  footer{border-top:1px solid var(--border);padding:var(--s4) 0;margin-top:var(--s5)}
  .foot{display:flex;justify-content:space-between;align-items:center;flex-wrap:wrap;gap:16px;font-size:13px;color:var(--secondary)}
  .foot .socials{display:flex;gap:10px}
  .foot .socials a{width:36px;height:36px;border:1px solid var(--border);border-radius:10px;display:grid;place-items:center;transition:all .2s}
  .foot .socials a:hover{border-color:var(--accent);color:var(--accent);transform:translateY(-2px)}
  .foot .socials svg{width:17px;height:17px}

  .modal{position:fixed;inset:0;z-index:100;display:none;align-items:center;justify-content:center;padding:20px;background:rgba(9,9,11,.55);backdrop-filter:blur(4px)}
  .modal.show{display:flex}
  .modal .box{background:var(--card);border:1px solid var(--border);border-radius:24px;box-shadow:var(--shadow-md);max-width:440px;width:100%;padding:var(--s4);text-align:center;transform:translateY(12px);opacity:0;transition:transform .3s cubic-bezier(.2,.7,.3,1),opacity .3s}
  .modal.show .box{transform:none;opacity:1}
  .modal .check{width:64px;height:64px;border-radius:50%;background:var(--check-bg);color:#16A34A;display:grid;place-items:center;margin:0 auto 20px}
  .modal .check svg{width:32px;height:32px}
  .modal h3{font-size:24px;font-weight:700}
  .modal p{color:var(--secondary);margin-top:12px;font-size:15px}
  .modal .steps{text-align:left;margin:22px 0;display:grid;gap:10px}
  .modal .steps div{display:flex;gap:10px;align-items:flex-start;font-size:14px;color:var(--secondary)}
  .modal .steps b{color:var(--accent);font-family:var(--font-head)}
  .modal .close{margin-top:8px;width:100%;justify-content:center;display:flex}

  .menu-btn{display:none;background:transparent;border:1px solid var(--border);border-radius:10px;width:40px;height:40px;place-items:center;cursor:pointer;color:var(--fg)}
  .menu-btn svg{width:20px;height:20px}
  @media(max-width:820px){.menu-btn{display:grid}}
  .mobile-menu{position:fixed;inset:0;z-index:60;display:none}
  .mobile-menu.show{display:block}
  .mobile-menu .scrim{position:absolute;inset:0;background:rgba(9,9,11,.5);backdrop-filter:blur(4px);opacity:0;transition:opacity .25s}
  .mobile-menu.show .scrim{opacity:1}
  .mobile-menu .panel{position:absolute;top:0;right:0;height:100%;width:min(80vw,320px);background:var(--card);border-left:1px solid var(--border);box-shadow:var(--shadow-md);padding:22px;transform:translateX(100%);transition:transform .3s cubic-bezier(.2,.7,.3,1);display:flex;flex-direction:column}
  .mobile-menu.show .panel{transform:none}
  .mobile-menu .mhead{display:flex;justify-content:space-between;align-items:center;margin-bottom:12px}
  .mobile-menu a{padding:15px 6px;font-family:var(--font-head);font-size:18px;font-weight:500;border-bottom:1px solid var(--border);color:var(--fg);transition:color .2s}
  .mobile-menu a:active{color:var(--accent)}
  .mobile-menu .btn{margin-top:20px;justify-content:center;display:flex}
  .mclose{background:transparent;border:none;cursor:pointer;color:var(--secondary);width:36px;height:36px;display:grid;place-items:center}
  .mclose svg{width:22px;height:22px}

  .reveal{opacity:0;transform:translateY(18px) scale(.98);transition:opacity .5s ease,transform .5s cubic-bezier(.2,.7,.3,1)}
  .reveal.in{opacity:1;transform:none}
  @media(prefers-reduced-motion:reduce){.reveal{opacity:1;transform:none;transition:none}html{scroll-behavior:auto}}

  .loading{padding:28px 4px;color:var(--secondary);font-size:14px;text-align:center}
  .load-err{padding:20px;border:1px solid var(--border);border-radius:12px;background:var(--muted);
    color:var(--secondary);font-size:14px;line-height:1.7}
  .load-err b{color:var(--fg);font-family:var(--font-head)}
  .load-err code{font-family:ui-monospace,Menlo,monospace;background:var(--card);
    border:1px solid var(--border);border-radius:5px;padding:1px 6px;font-size:13px}

  .search-box{position:relative;margin-bottom:16px;max-width:520px}
  .search-box svg{position:absolute;left:14px;top:50%;transform:translateY(-50%);
    width:17px;height:17px;color:var(--secondary);pointer-events:none}
  .search-box input{width:100%;font-family:var(--font-body);font-size:15px;
    padding:12px 16px 12px 42px;border-radius:12px;border:1px solid var(--border);
    background:var(--card);color:var(--fg);transition:border-color .2s,box-shadow .2s}
  .search-box input:focus{outline:none;border-color:var(--accent);box-shadow:0 0 0 3px var(--accent-ring)}
  .search-box input::-webkit-search-cancel-button{cursor:pointer}
  .no-hit{padding:38px 20px;text-align:center;color:var(--secondary);font-size:14.5px;
    background:var(--card);border:1px solid var(--border);border-radius:var(--radius)}

  .work-card,.tool-card{display:block;color:inherit}
  .work-card .thumb{margin:-4px 0 16px;border-radius:12px;overflow:hidden;
    background:var(--muted);aspect-ratio:16/9}
  .work-card .thumb img{width:100%;height:100%;object-fit:cover;display:block}
  .go{display:inline-block;margin-top:14px;font-family:var(--font-head);font-size:13.5px;
    font-weight:500;color:var(--accent);transition:letter-spacing .2s}
  .card:hover .go{letter-spacing:.02em}
  .go.dim{color:var(--secondary)}
  .tool-card .tool-top{display:flex;align-items:baseline;justify-content:space-between;gap:10px}
  .tool-card .tool-top h3{margin-bottom:10px}
  .tool-card .price{flex-shrink:0;font-family:var(--font-head);font-size:11px;font-weight:500;
    color:var(--secondary);background:var(--muted);border-radius:5px;padding:2px 8px}

  .more-wrap{margin-top:18px;display:flex;justify-content:center}
  .btn-more{font-family:var(--font-head);font-size:14.5px;font-weight:500;cursor:pointer;
    display:inline-flex;align-items:center;gap:10px;
    background:var(--card);color:var(--fg);border:1px solid var(--border);
    border-radius:999px;padding:11px 26px;transition:all .18s}
  .btn-more:hover{border-color:var(--accent);color:var(--accent);transform:translateY(-1px)}
  .btn-more .rest{font-size:12.5px;color:var(--secondary);font-weight:400}
  .btn-more:hover .rest{color:var(--accent)}
  .all-shown{font-size:13px;color:var(--secondary);padding:6px 0}

  .sheet{position:fixed;inset:0;z-index:80;display:none}
  .sheet.show{display:block}
  .sheet-scrim{position:absolute;inset:0;background:rgba(9,9,11,.55);
    -webkit-backdrop-filter:blur(4px);backdrop-filter:blur(4px)}
  .sheet-box{position:absolute;left:50%;top:50%;transform:translate(-50%,-50%);
    width:min(920px,92vw);height:min(82vh,860px);
    background:var(--bg);border:1px solid var(--border);border-radius:24px;
    box-shadow:var(--shadow-md);display:flex;flex-direction:column;overflow:hidden}
  .sheet-head{display:flex;align-items:flex-start;justify-content:space-between;gap:16px;
    padding:26px var(--s4) 18px;border-bottom:1px solid var(--border)}
  .sheet-head h2{font-size:clamp(22px,3vw,30px);font-weight:600}
  .sheet-head-right{display:flex;align-items:center;gap:14px;flex-shrink:0}
  .sheet-count{font-size:13px;color:var(--secondary);font-family:var(--font-head);white-space:nowrap}
  .sheet-close{background:transparent;border:1px solid var(--border);border-radius:10px;
    width:38px;height:38px;display:grid;place-items:center;cursor:pointer;color:var(--fg);
    transition:all .18s;flex-shrink:0}
  .sheet-close:hover{border-color:var(--fg);transform:rotate(90deg)}
  .sheet-close svg{width:18px;height:18px}
  .sheet-tools{padding:18px var(--s4) 0;flex-shrink:0}
  .sheet-tools .search-box{max-width:none;margin-bottom:14px}
  .sheet-tools .tabs{margin-bottom:18px}
  .sheet-tools .tabs:empty{display:none}
  .sheet-body{flex:1;overflow-y:auto;overscroll-behavior:contain;
    padding:0 var(--s4) var(--s4);-webkit-overflow-scrolling:touch}

  .sheet-body .arch{border:none;border-radius:0;box-shadow:none;padding:0;background:transparent}
  .sheet-body .arch a:first-child{border-top:none}
  .sheet-body .no-hit{border:none;background:transparent}
  @media(max-width:640px){
    .sheet-box{width:100vw;height:100vh;max-height:none;border-radius:0;border:none;
      top:0;left:0;transform:none}
    .sheet-head{padding:20px var(--s3) 14px}
    .sheet-tools{padding:14px var(--s3) 0}
    .sheet-body{padding:0 var(--s3) var(--s3)}
    .sheet-count{display:none}
  }