:root {
  /* Colors */
  --bg-primary: #000000;
  --bg-secondary: #09090b;
  --bg-card: rgba(255, 255, 255, 0.02);
  --bg-nav: rgba(0, 0, 0, 0.75);

  --text-primary: #ffffff;
  --text-secondary: #a1a1aa;
  --text-muted: #52525b;

  --brand-primary: #6366f1;
  --brand-secondary: #4f46e5;
  --brand-gradient: linear-gradient(135deg, #4f46e5, #6366f1, #3b82f6);

  --border-color: rgba(255, 255, 255, 0.08);
  --border-hover: rgba(255, 255, 255, 0.16);

  /* Typography */
  --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;

  /* Layout */
  --max-width: 1200px;
  --nav-height: 64px;
  --portal-notice-h: 0px;

  /* Effects */
  --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.8);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.8), 0 2px 4px -1px rgba(0, 0, 0, 0.8);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.9), 0 4px 6px -2px rgba(0, 0, 0, 0.9);
  --shadow-glow: 0 0 20px rgba(99, 102, 241, 0.15);

  /* Transitions */
  --transition-fast: 150ms cubic-bezier(0.4, 0, 0.2, 1);
  --transition-normal: 300ms cubic-bezier(0.4, 0, 0.2, 1);
}

[data-theme="light"] {
  --bg-primary: #fafafa;
  --bg-secondary: #f4f4f5;
  --bg-card: rgba(255, 255, 255, 0.8);
  --bg-nav: rgba(255, 255, 255, 0.75);

  --text-primary: #18181b;
  --text-secondary: #52525b;
  --text-muted: #a1a1aa;

  --border-color: rgba(0, 0, 0, 0.08);
  --border-hover: rgba(0, 0, 0, 0.15);

  --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.05);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
}


  
  
:root {
  --arts-cyan: #99edff;
  --arts-cyan-deep: #62e2fe;
  --arts-ink: #19191a;
  --arts-ink-soft: #202022;
  --arts-paper: #ffffff;
  --arts-muted: #6b6b70;
  --arts-line: rgba(18, 18, 22, 0.12);
  --arts-lime: #c8f000;
  --arts-yellow: #fff200;
  --arts-purple: #7c4dff;
  --arts-lavender: #ede0ff;
  --arts-mint: #e6ffd2;
  --arts-radius: 4px;
  --arts-card-radius: 16px;
  --brand-primary: #202022;
  --brand-secondary: #19191a;
  --brand-gradient: none;
  --bg-primary: #ffffff;
  --bg-secondary: #f7f7f8;
  --bg-card: #ffffff;
  --bg-nav: #99edff;
  --text-primary: #19191a;
  --text-secondary: #3d3d42;
  --text-muted: #6b6b70;
  --border-color: rgba(18, 18, 22, 0.12);
  --border-hover: rgba(18, 18, 22, 0.28);
  --font-sans: 'Public Sans', 'Outfit', ui-sans-serif, system-ui, sans-serif;
  --font-display: 'Outfit', 'Public Sans', ui-sans-serif, system-ui, sans-serif;
  --font-mono: 'Chivo Mono', 'JetBrains Mono', ui-monospace, monospace;
  --nav-height: 64px;
  --shadow-sm: none;
  --shadow-md: none;
  --shadow-lg: none;
  --shadow-glow: none;
  --max-width: 1280px;
}

[data-theme="light"] {
  --bg-primary: #ffffff;
  --bg-secondary: #f7f7f8;
  --bg-card: #ffffff;
  --bg-nav: #99edff;
  --text-primary: #19191a;
  --text-secondary: #3d3d42;
  --text-muted: #6b6b70;
  --border-color: rgba(18, 18, 22, 0.12);
}

html[data-theme="dark"] {
  --arts-cyan: #1b4d5c;
  --arts-paper: #0c0c0d;
  --bg-primary: #0c0c0d;
  --bg-secondary: #141416;
  --bg-card: #161618;
  --bg-nav: #1b4d5c;
  --text-primary: #f5f5f5;
  --text-secondary: #c4c4c8;
  --text-muted: #8a8a90;
  --border-color: rgba(255, 255, 255, 0.12);
  --arts-ink: #f5f5f5;
  --arts-ink-soft: #fafafa;
  --arts-muted: #9a9aa0;
  --arts-line: rgba(255, 255, 255, 0.12);
  --arts-lavender: #2a2040;
  --arts-mint: #1d2a12;
}

body.arts-art {
  font-family: var(--font-sans);
  background: var(--bg-primary);
  color: var(--text-primary);
  letter-spacing: -0.011em;
}

body.arts-art-home {
  background: var(--arts-paper);
}

body.arts-art a {
  color: var(--text-primary);
}
body.arts-art a:hover {
  color: var(--text-primary);
  opacity: 0.72;
}

body.arts-art code:not(#api-url-text) {
  font-family: var(--font-mono) !important;
  background: transparent !important;
  border: 1px solid var(--arts-line) !important;
  border-radius: var(--arts-radius) !important;
  color: var(--text-primary) !important;
  font-size: 13px;
}

/* Header + footer chrome: one bar for home / about / contact (and other portal pages) */
body.arts-art .hdr {
  background: #99edff !important;
  border-bottom: none !important;
  backdrop-filter: none !important;
  -webkit-backdrop-filter: none !important;
  box-shadow: none !important;
  height: 64px !important;
  top: 0 !important;
  left: 0 !important;
  right: 0 !important;
  transform: none !important;
  width: 100% !important;
  max-width: none !important;
  border-radius: 0 !important;
}
html[data-theme="dark"] body.arts-art .hdr {
  background: #99edff !important;
}
html[data-theme="dark"] body.arts-art .hdr-logo,
html[data-theme="dark"] body.arts-art .hdr-nav a,
html[data-theme="dark"] body.arts-art .btn-ghost,
html[data-theme="dark"] body.arts-art .btn-icon {
  color: #19191a !important;
}
body.arts-art .hdr.hidden {
  transform: none !important;
}
body.arts-art .hdr-in {
  max-width: 1440px !important;
  padding: 0 28px !important;
}
body.arts-art .hdr-logo {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 1.35rem;
  letter-spacing: -0.04em;
  color: #19191a !important;
}
body.arts-art .hdr-logo:not(:has(img))::before {
  content: '';
  width: 16px;
  height: 16px;
  border: 1.6px solid currentColor;
  border-radius: 3px;
  transform: rotate(45deg);
  box-shadow: inset 3px 3px 0 currentColor;
  margin-right: 2px;
}
body.arts-art .hdr-logo img {
  height: 22px;
  border-radius: 0 !important;
}
body.arts-art .hdr-nav a {
  font-size: 14px;
  font-weight: 500;
  color: #19191a !important;
  background: transparent !important;
  border-radius: 0 !important;
  padding: 6px 10px;
}
body.arts-art .hdr-nav a.on,
body.arts-art .hdr-nav a:hover {
  background: transparent !important;
  color: #19191a !important;
  opacity: 0.62;
}
body.arts-art .hdr-nav a svg {
  display: none !important;
}
body.arts-art .hdr-nav a.on::after {
  content: '';
  width: 5px;
  height: 5px;
  border-radius: 50%;
  background: #9a9aa0;
  display: inline-block;
  margin-left: 6px;
}
body.arts-art .hdr-search input,
body.arts-art .hdr-search-mob input,
html[data-theme="dark"] body.arts-art .hdr-search input,
html[data-theme="dark"] body.arts-art .hdr-search-mob input {
  background: rgba(255, 255, 255, 0.45) !important;
  border: 1px solid rgba(18, 18, 22, 0.22) !important;
  border-radius: var(--arts-radius) !important;
  color: #19191a !important;
  box-shadow: none !important;
  font-family: var(--font-sans);
}
body.arts-art .hdr-search input::placeholder,
html[data-theme="dark"] body.arts-art .hdr-search input::placeholder {
  color: rgba(25, 25, 26, 0.55) !important;
}
body.arts-art .hdr-search svg,
html[data-theme="dark"] body.arts-art .hdr-search svg {
  fill: #19191a !important;
  opacity: 0.65;
}
body.arts-art .hdr-search input:focus,
html[data-theme="dark"] body.arts-art .hdr-search input:focus {
  border-color: #19191a !important;
  background: rgba(255, 255, 255, 0.75) !important;
  box-shadow: none !important;
}
body.arts-art .btn-s {
  border-radius: var(--arts-radius) !important;
  font-weight: 600;
  font-size: 14px;
  height: 36px;
  padding: 0 16px;
}
body.arts-art .btn-ghost {
  color: #19191a !important;
  background: transparent !important;
}
body.arts-art .btn-primary,
body.arts-art .btn-s.btn-primary {
  background: var(--arts-ink-soft) !important;
  color: #fafafa !important;
  border: 1px solid transparent !important;
  filter: none !important;
  transform: none !important;
}
html[data-theme="dark"] body.arts-art .btn-primary,
html[data-theme="dark"] body.arts-art .btn-s.btn-primary {
  background: #fafafa !important;
  color: #0c0c0d !important;
}
body.arts-art .btn-primary:hover {
  filter: none !important;
  transform: none !important;
  opacity: 0.88;
}
body.arts-art .btn-icon {
  color: #19191a !important;
  border-radius: var(--arts-radius) !important;
}
body.arts-art .hdr-sep {
  background: var(--arts-line) !important;
}
body.arts-art .hdr-avatar-link {
  border-radius: 50% !important;
  background: #19191a !important;
  color: #ffffff !important;
  display: inline-flex !important;
  align-items: center !important;
  justify-content: center !important;
  border: 1px solid rgba(18, 18, 22, 0.15) !important;
}
body.arts-art .hdr-avatar-link .hdr-avatar,
body.arts-art .hdr-avatar-link #hdr-avatar-text {
  color: #ffffff !important;
}

/* Inner page hero */
body.arts-art .pg-hero {
  background: var(--bg-primary) !important;
  border-bottom: 1px solid var(--arts-line);
  text-align: left;
  padding: calc(var(--nav-height) + 48px) 0 40px;
}
body.arts-art .pg-hero h1 {
  font-family: var(--font-display);
  font-weight: 500;
  letter-spacing: -0.04em;
  font-size: clamp(2.4rem, 4vw, 3.6rem);
  line-height: 0.95;
}

/* Footer */
body.arts-art .ftr {
  background: var(--bg-primary) !important;
  border-top: 1px solid var(--arts-line) !important;
}
body.arts-art .ftr-brand b {
  font-family: var(--font-display);
  font-weight: 600;
  letter-spacing: -0.03em;
}
body.arts-art .ftr-col h4 {
  font-size: 12px;
  letter-spacing: 0.08em;
  font-weight: 600;
}
body.arts-art .ftr-btm.ftr-legal {
  flex-direction: row;
  flex-wrap: wrap;
  justify-content: space-between;
  align-items: flex-start;
  text-align: left;
  gap: 16px 32px;
  padding: 20px 0 28px;
}
body.arts-art .ftr-legal-meta {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 4px;
  text-align: left;
  line-height: 1.6;
}
body.arts-art .ftr-legal-links {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px 18px;
}
body.arts-art .ftr-legal-links a {
  color: var(--text-secondary);
  font-weight: 500;
}
body.arts-art .ftr-legal-links a:hover {
  color: var(--text-primary);
}
@media (max-width: 768px) {
  body.arts-art .ftr-btm.ftr-legal {
    flex-direction: column;
    align-items: flex-start;
    text-align: left;
  }
}
body.arts-art .lang-dropdown-menu {
  background: var(--bg-primary) !important;
  border: 1px solid var(--arts-line) !important;
  border-radius: var(--arts-radius) !important;
  box-shadow: 0 12px 40px rgba(0,0,0,0.12);
  padding: 4px !important;
}
body.arts-art .lang-dropdown-menu a {
  color: var(--text-primary) !important;
  border-radius: var(--arts-radius) !important;
}
body.arts-art .lang-dropdown-menu a:hover {
  background: rgba(128, 128, 128, 0.12) !important;
  color: var(--text-primary) !important;
}
body.arts-art .lang-dropdown-menu a.active {
  background: #19191a !important;
  color: #fafafa !important;
  border-radius: var(--arts-radius) !important;
  font-weight: 600 !important;
}
html[data-theme="dark"] body.arts-art .lang-dropdown-menu {
  background: #161618 !important;
  border-color: rgba(255, 255, 255, 0.12) !important;
}
html[data-theme="dark"] body.arts-art .lang-dropdown-menu a {
  color: #d4d4d8 !important;
}
html[data-theme="dark"] body.arts-art .lang-dropdown-menu a:hover {
  background: rgba(255, 255, 255, 0.08) !important;
  color: #ffffff !important;
}
html[data-theme="dark"] body.arts-art .lang-dropdown-menu a.active {
  background: #fafafa !important;
  color: #0c0c0d !important;
}

/* Kill the global 5px radius for this style */
body.arts-art .btn-s,
body.arts-art .btn-primary,
body.arts-art .hdr-search input,
body.arts-art .hdr-search-mob input,
body.arts-art .hf-search input,
body.arts-art .cta-primary,
body.arts-art .cta-secondary {
  border-radius: var(--arts-radius) !important;
}
body.arts-art .hf-card,
body.arts-art .feat-card,
body.arts-art .qnav-card,
body.arts-art .ct-item,
body.arts-art .mod-wrap {
  border-radius: var(--arts-card-radius) !important;
}

body.arts-art .hf-card {
  background: #fff !important;
  border: 1px solid var(--arts-line) !important;
  box-shadow: none !important;
}
body.arts-art .hf-card:hover {
  transform: translateY(-2px) !important;
  border-color: var(--arts-ink) !important;
  box-shadow: none !important;
}
html[data-theme="dark"] body.arts-art .hf-card {
  background: #161618 !important;
  border: 1px solid rgba(255, 255, 255, 0.1) !important;
}
html[data-theme="dark"] body.arts-art .hf-card:hover {
  border-color: rgba(255, 255, 255, 0.28) !important;
  box-shadow: 0 8px 24px -4px rgba(0, 0, 0, 0.5) !important;
}
body.arts-art .hf-filter-item.active {
  background: var(--arts-ink-soft) !important;
  color: #fafafa !important;
  border-radius: var(--arts-radius) !important;
}
html[data-theme="dark"] body.arts-art .hf-filter-item.active {
  background: #fafafa !important;
  color: #0c0c0d !important;
}
body.arts-art .hf-search input:focus {
  box-shadow: none !important;
  border-color: var(--arts-ink) !important;
}
html[data-theme="dark"] body.arts-art .hf-search input {
  background: #141416 !important;
  border: 1px solid rgba(255, 255, 255, 0.14) !important;
  color: #fafafa !important;
}
html[data-theme="dark"] body.arts-art .hf-search input:focus {
  border-color: rgba(255, 255, 255, 0.35) !important;
}

@media (max-width: 768px) {
  body.arts-art .hdr-menu {
    background: #99edff !important;
  }
}

body.arts-art .ct-item,
body.arts-art .soc-a {
  border: 1px solid var(--arts-line) !important;
  background: transparent !important;
  box-shadow: none !important;
}
body.arts-art .ct-item:hover,
body.arts-art .soc-a:hover {
  border-color: var(--arts-ink) !important;
  transform: none !important;
}
html[data-theme="dark"] body.arts-art .ct-item:hover,
html[data-theme="dark"] body.arts-art .soc-a:hover {
  border-color: rgba(255, 255, 255, 0.35) !important;
}

  


*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{font-family:var(--font-sans);background-color:var(--bg-primary);color:var(--text-primary);line-height:1.6;-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale;min-height:100vh;display:flex;flex-direction:column;transition:background-color var(--transition-normal), color var(--transition-normal)}
a{color:var(--brand-secondary);text-decoration:none;transition:color var(--transition-fast)}
a:hover{color:var(--brand-primary)}
code{font-family:'JetBrains Mono','Fira Code',monospace;background:rgba(128,128,128,0.15);color:var(--brand-primary);padding:3px 6px;border-radius:6px;font-size:13px;border:1px solid rgba(128,128,128,0.2)}
[data-theme="light"] code{background:rgba(0, 0, 0, 0.05);color:#0060df}
strong{color:var(--text-primary);font-weight:600}
.wrap{max-width:var(--max-width);margin:0 auto;padding:0 24px;width:100%;position:relative;z-index:10}
.main-content{flex:1}

/* ── Header Navbar ── */
.hdr{position:fixed;top:var(--portal-notice-h, 0px);left:0;right:0;height:var(--nav-height);background:var(--bg-nav);backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);border-bottom:1px solid var(--border-color);z-index:100;transition:transform var(--transition-normal), background var(--transition-normal), border-color var(--transition-normal)}
.hdr.hidden {transform:translateY(calc(-100% - var(--portal-notice-h, 0px)))}
.hdr-in{max-width:var(--max-width);margin:0 auto;display:flex;align-items:center;padding:0 24px;height:100%;gap:24px}
.hdr-logo{display:flex;align-items:center;gap:12px;color:var(--text-primary)!important;font-weight:700;font-size:1.125rem;letter-spacing:-0.025em;white-space:nowrap}
.hdr-logo img{height:24px;border-radius:4px;object-fit:contain}
.hdr-search{flex:1;max-width:320px;position:relative;display:none}
@media(min-width:992px){.hdr-search{display:block}}
.hdr-search input{width:100%;background:rgba(0,0,0,0.2);border:1px solid var(--border-color);border-radius:6px;padding:6px 12px 6px 32px;color:var(--text-primary);font-size:13px;outline:none;transition:all var(--transition-fast)}
[data-theme="light"] .hdr-search input{background:rgba(255,255,255,0.8)}
.hdr-search input:focus{border-color:var(--brand-primary);box-shadow:var(--shadow-glow)}
.hdr-search input::placeholder{color:var(--text-muted)}
.hdr-search svg{position:absolute;left:10px;top:50%;transform:translateY(-50%);width:14px;height:14px;fill:var(--text-muted)}
.hdr-menu{display:flex;align-items:center;margin-left:auto;gap:16px}
.hdr-nav{display:flex;gap:4px}
.hdr-nav a{display:flex;align-items:center;gap:6px;padding:6px 12px;border-radius:6px;font-size:14px;font-weight:500;color:var(--text-secondary);transition:all var(--transition-fast)}
.hdr-nav a:hover,.hdr-nav a.on{color:var(--text-primary);background:rgba(128,128,128,0.1)}
.hdr-sep{width:1px;height:24px;background:var(--border-color);margin:0 4px}
.hdr-act{display:flex;gap:12px;align-items:center}
.btn-s{display:inline-flex;align-items:center;justify-content:center;padding:8px 16px;border-radius:9999px;font-size:14px;font-weight:500;transition:all var(--transition-fast);white-space:nowrap}
.btn-ghost{color:var(--text-secondary);background:transparent;border:none}
.btn-ghost:hover{color:var(--text-primary);background:rgba(128,128,128,0.05)}
.btn-primary{background:var(--brand-primary);color:#fff!important;border:none}
.btn-primary:hover{filter:brightness(0.9);transform:translateY(-1px)}
.btn-icon{display:flex;align-items:center;justify-content:center;width:36px;height:36px;border:none;background:transparent;border-radius:50%;color:var(--text-secondary);cursor:pointer;transition:all var(--transition-fast)}
.btn-icon:hover{background:rgba(128,128,128,0.1);color:var(--text-primary)}
.btn-icon svg{width:18px;height:18px;fill:currentColor}
.hdr-avatar-link { display: inline-flex; align-items: center; justify-content: center; text-decoration: none; border-radius: 50% !important; overflow: hidden; background: var(--brand-primary); color: #fff !important; width: 36px; height: 36px; transition: transform var(--transition-fast), box-shadow var(--transition-fast); box-shadow: var(--shadow-sm); }
.hdr-avatar-link:hover { transform: translateY(-1px); box-shadow: var(--shadow-md); filter: brightness(1.1); }
.hdr-avatar { font-size: 16px; font-weight: 600; text-transform: uppercase; user-select: none; }

/* Mobile Menu Button */
.mob-btn{display:none;background:none;border:none;color:var(--text-primary);cursor:pointer;padding:8px;z-index:1000}
.mob-btn span{display:block;width:20px;height:2px;background:currentColor;margin:4px 0;transition:transform var(--transition-fast);border-radius:1px}
.hdr-search-mob{display:none}

/* ── Sub Page Hero ── */
.pg-hero{padding:calc(var(--nav-height) + 40px) 0 40px;text-align:left;border-bottom:1px solid var(--border-color);background:var(--bg-secondary);transition:background-color var(--transition-normal)}
.pg-hero h1{font-size:32px;font-weight:800;margin-bottom:12px;letter-spacing:-0.5px;color:var(--text-primary)}
.pg-hero p{color:var(--text-secondary);font-size:16px;max-width:600px}

/* ── Models Table ── */
.mod-sec{padding:40px 0 80px}
.mod-wrap{overflow-x:auto;border-radius:12px;border:1px solid var(--border-color);background:var(--bg-card);backdrop-filter:blur(10px);-webkit-backdrop-filter:blur(10px);box-shadow:var(--shadow-md)}
.mod-tbl{width:100%;border-collapse:collapse}
.mod-tbl th{text-align:left;padding:14px 20px;font-size:12px;font-weight:600;color:var(--text-muted);text-transform:uppercase;letter-spacing:1px;background:rgba(128,128,128,0.05);border-bottom:1px solid var(--border-color)}
.mod-tbl td{padding:14px 20px;font-size:14px;border-bottom:1px solid var(--border-color);color:var(--text-secondary)}
.mod-tbl tr:last-child td{border-bottom:none}
.mod-tbl tbody tr:hover td{background:rgba(128,128,128,0.05)}
.mod-name{font-weight:600;color:var(--text-primary);font-size:15px}
.tag{display:inline-block;padding:2px 8px;border-radius:4px;font-size:12px;font-weight:600;background:rgba(128,128,128,0.1);color:var(--text-secondary);border:1px solid var(--border-color)}
.mod-note{margin-top:24px;padding:16px;border-radius:8px;background:var(--bg-secondary);border:1px solid var(--border-color);font-size:14px;color:var(--text-muted)}
.empty-h{text-align:center;color:var(--text-muted);padding:48px 0!important}

/* ── Contact ── */
.ct-sec{padding:40px 0 80px}
.ct-grid{display:grid;grid-template-columns:1fr 1fr;gap:32px}
.ct-info{display:flex;flex-direction:column;gap:16px}
.ct-item{display:flex;gap:16px;padding:20px;border-radius:12px;background:var(--bg-card);backdrop-filter:blur(10px);-webkit-backdrop-filter:blur(10px);border:1px solid var(--border-color);box-shadow:var(--shadow-sm);transition:all var(--transition-normal)}
.ct-item:hover{border-color:var(--border-hover);transform:translateY(-2px);box-shadow:var(--shadow-md)}
.ct-item .ci{font-size:20px;flex-shrink:0;width:40px;height:40px;background:rgba(128,128,128,0.1);border-radius:8px;display:flex;align-items:center;justify-content:center;color:var(--text-primary)}
.ct-item strong{display:block;color:var(--text-primary);font-size:15px;font-weight:600;margin-bottom:4px}
.ct-item p{color:var(--text-secondary);font-size:14px;margin:0;line-height:1.5}
.soc h3{font-size:18px;font-weight:700;margin-bottom:16px;color:var(--text-primary)}
.soc-grid{display:flex;flex-wrap:wrap;gap:10px}
.soc-a{padding:8px 16px;border-radius:8px;font-size:14px;font-weight:500;background:var(--bg-card);border:1px solid var(--border-color);color:var(--text-secondary);transition:all var(--transition-fast);box-shadow:var(--shadow-sm)}
.soc-a:hover{border-color:var(--brand-secondary);color:var(--brand-secondary);background:rgba(128,128,128,0.05);transform:translateY(-1px)}

/* ── About ── */
.ab-sec{padding:40px 0 80px}
.ab-body{max-width:800px;margin:0 auto;font-size:16px;line-height:1.8;color:var(--text-secondary)}
.ab-body h2{font-size:26px;color:var(--text-primary);margin:36px 0 16px;font-weight:800;letter-spacing:-0.5px}
.ab-body h3{font-size:20px;color:var(--text-primary);margin:24px 0 12px;font-weight:700}
.ab-body p{margin-bottom:16px}
.ab-body ul,.ab-body ol{margin:0 0 16px 20px}
.ab-body li{margin-bottom:8px}

/* ── Footer ── */
.ftr{border-top:1px solid var(--border-color);padding:48px 0 0;margin-top:auto;background:var(--bg-secondary);transition:background-color var(--transition-normal), border-color var(--transition-normal)}
.ftr-in{max-width:var(--max-width);margin:0 auto;padding:0 24px}
.ftr-top{display:flex;justify-content:space-between;gap:40px;padding-bottom:32px}
.ftr-brand{max-width:360px}
.ftr-brand b{font-size:18px;color:var(--text-primary);display:block;margin-bottom:12px;letter-spacing:-0.5px;font-weight:800}
.ftr-brand p{color:var(--text-secondary);font-size:14px;line-height:1.6}
.ftr-brand .ftr-meta{margin-top:12px;color:var(--text-muted);font-size:13px;line-height:1.5}
.ftr-brand .ftr-meta p{margin:0 0 4px;color:var(--text-muted);font-size:13px}
.ftr-links{display:flex;gap:48px;flex-wrap:wrap}
.ftr-col{min-width:140px;max-width:240px}
.ftr-col h4{font-size:13px;font-weight:700;color:var(--text-primary);margin-bottom:16px;letter-spacing:0.5px;text-transform:uppercase}
.ftr-col a{display:block;font-size:14px;color:var(--text-secondary);margin-bottom:10px;transition:color var(--transition-fast);font-weight:500}
.ftr-col a:hover{color:var(--text-primary)}
.ftr-col p{color:var(--text-secondary);font-size:14px;line-height:1.6;margin:0}
.ftr-btm{display:flex;flex-direction:column;align-items:center;justify-content:center;gap:8px;padding:20px 0;border-top:1px solid var(--border-color);font-size:13px;color:var(--text-muted);text-align:center}
.ftr-btm a{color:var(--text-secondary);font-weight:500;transition:color var(--transition-fast)}
.ftr-btm a:hover{color:var(--text-primary)}

/* ── Responsive ── */
@media(max-width:992px){
  .ftr-top{flex-direction:column;gap:32px}
  .ftr-links{flex-wrap:wrap;gap:32px}
}
@media(max-width:768px){
  .hdr-menu{position:fixed;top:calc(var(--nav-height) + var(--portal-notice-h, 0px));left:0;right:0;bottom:0;background:var(--bg-primary);backdrop-filter:blur(20px);-webkit-backdrop-filter:blur(20px);flex-direction:column;padding:32px 24px;z-index:999;align-items:stretch;justify-content:flex-start;gap:24px;opacity:0;pointer-events:none;transform:translateY(-10px);transition:all var(--transition-normal)}
  .navbar.menu-open .hdr-menu{opacity:1;pointer-events:auto;transform:translateY(0)}
  .hdr-nav{flex-direction:column;gap:12px}
  .hdr-nav a{padding:10px 16px;font-size:16px}
  .hdr-sep{display:none}
  .hdr-act{flex-direction:column;gap:12px;margin-top:16px}
  .hdr-act .btn-s{width:100%;padding:12px;font-size:16px}
  .mob-btn{display:block}
  .hdr-search-mob{display:block;position:relative;width:100%;margin-bottom:8px}
  .hdr-search-mob input{width:100%;background:rgba(0,0,0,0.1);border:1px solid var(--border-color);border-radius:6px;padding:10px 12px 10px 36px;color:var(--text-primary);font-size:15px;outline:none}
  [data-theme="light"] .hdr-search-mob input{background:rgba(255,255,255,0.8)}
  .hdr-search-mob svg{position:absolute;left:12px;top:50%;transform:translateY(-50%);width:16px;height:16px;fill:var(--text-muted)}
  .ct-grid{grid-template-columns:1fr}
  .ftr-btm{flex-direction:column;gap:12px;text-align:center}
  .pg-hero{padding:calc(var(--nav-height) + 24px) 0 32px}
}


/* 非经典风格沿用各自圆角，避免被后面的 5px 规则盖掉 */

body.dark .invert-dark,
[data-theme="dark"] .invert-dark {
  filter: brightness(0) invert(1) !important;
}

/* ── Language Dropdown ── */
.lang-dropdown {
  position: relative;
  display: inline-block;
}
.lang-dropdown-menu {
  display: none;
  position: absolute;
  top: 100%;
  right: 0;
  margin-top: 6px;
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: 6px;
  box-shadow: var(--shadow-lg);
  padding: 4px;
  min-width: 120px;
  z-index: 1000;
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  opacity: 0;
  transform: translateY(-8px);
  transition: opacity var(--transition-fast), transform var(--transition-fast);
}
.lang-dropdown.open .lang-dropdown-menu {
  display: block;
  opacity: 1;
  transform: translateY(0);
}
.lang-dropdown-menu a {
  display: block;
  padding: 8px 12px;
  color: var(--text-secondary);
  font-size: 13px;
  font-weight: 500;
  border-radius: 4px;
  transition: all var(--transition-fast);
  text-align: left;
}
.lang-dropdown-menu a:hover {
  background: rgba(255, 255, 255, 0.05);
  color: var(--text-primary);
}
[data-theme="light"] .lang-dropdown-menu a:hover {
  background: rgba(0, 0, 0, 0.05);
}
.lang-dropdown-menu a.active {
  background: var(--brand-gradient);
  color: #ffffff !important;
}


.portal-notice-bar{display:none;position:fixed;top:0;left:0;right:0;height:45px;z-index:1000;align-items:center;justify-content:center;padding:0 24px;box-sizing:border-box;background:var(--bg-secondary,#111);color:var(--text-primary,#fff);border-bottom:1px solid var(--border-color,rgba(255,255,255,.08));text-align:center}
.portal-notice-bar.is-on{display:flex}
.portal-notice-text{max-width:min(960px,100%);overflow:hidden;text-overflow:ellipsis;white-space:nowrap;font-size:14px;font-weight:500;line-height:20px}
body.portal-has-notice{padding-top:45px}


.arts-ct { color: var(--arts-ink); }
.arts-ct * { box-sizing: border-box; }

.arts-ct-hero {
  position: relative;
  background: #99edff;
  color: #19191a;
  padding: calc(var(--nav-height) + 48px) 48px 64px;
  overflow: hidden;
}
.arts-ct-hero-in {
  position: relative;
  z-index: 2;
  max-width: 1280px;
  margin: 0 auto;
}
.arts-ct-kicker {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  margin-bottom: 18px;
}
.arts-ct-kicker::before {
  content: '';
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: #19191a;
}
.arts-ct-hero h1 {
  font-family: var(--font-display);
  font-weight: 500;
  letter-spacing: -0.05em;
  line-height: 0.92;
  font-size: clamp(3rem, 6.4vw, 5.4rem);
  max-width: 12ch;
  color: #19191a;
  margin: 0;
}
.arts-ct-hero p {
  margin: 18px 0 0;
  font-size: 18px;
  line-height: 1.5;
  max-width: 34em;
  color: #19191a;
  opacity: 0.72;
}
.arts-ct-pill {
  position: absolute;
  right: 8%;
  top: 38%;
  width: 180px;
  height: 46px;
  border-radius: 999px;
  background: #fff200;
  transform: rotate(-22deg);
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.08);
  pointer-events: none;
  z-index: 1;
}
.arts-ct-curve {
  position: absolute;
  right: -40px;
  bottom: -40px;
  width: min(420px, 42vw);
  height: 220px;
  pointer-events: none;
  z-index: 1;
}

.arts-ct-body {
  max-width: 1280px;
  margin: 0 auto;
  padding: 56px 48px 96px;
}
.arts-ct-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.45fr) minmax(280px, 0.75fr);
  gap: 24px;
  align-items: stretch;
}
.arts-ct-grid.is-solo-social,
.arts-ct-grid.is-solo-channels {
  grid-template-columns: 1fr;
}
.arts-ct-grid:has(.arts-ct-channels > .arts-ct-card:only-child):has(.arts-ct-social) {
  grid-template-columns: minmax(0, 1fr) minmax(280px, 1fr);
}
.arts-ct-channels {
  display: flex;
  flex-direction: column;
  gap: 12px;
  min-height: 100%;
}
.arts-ct-card {
  display: flex;
  align-items: center;
  gap: 16px;
  flex: 1 1 auto;
  padding: 20px 22px;
  border: 1px solid var(--arts-line);
  border-radius: 16px;
  background: var(--bg-card);
  text-decoration: none;
  color: inherit;
  cursor: pointer;
  transition: border-color 0.15s ease;
}
.arts-ct-card:hover {
  border-color: var(--arts-ink);
  color: inherit;
  opacity: 1;
}
.arts-ct-ic {
  flex-shrink: 0;
  width: 48px;
  height: 48px;
  border-radius: 4px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: #e6ffd2;
  color: #19191a;
}
.arts-ct-ic svg { width: 20px; height: 20px; display: block; }
.arts-ct-card:nth-child(2) .arts-ct-ic { background: #ede0ff; }
.arts-ct-card:nth-child(3) .arts-ct-ic { background: #99edff; }
.arts-ct-card strong {
  display: block;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--text-muted);
  margin-bottom: 4px;
}
.arts-ct-card p {
  margin: 0;
  font-family: var(--font-display);
  font-size: 18px;
  font-weight: 500;
  letter-spacing: -0.03em;
  color: var(--text-primary);
  word-break: break-word;
}
.arts-ct-arrow {
  margin-left: auto;
  flex-shrink: 0;
  width: 28px;
  height: 28px;
  border-radius: 4px;
  border: 1px solid var(--arts-line);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-primary);
  transition: background 0.15s ease, color 0.15s ease, border-color 0.15s ease;
}
.arts-ct-card:hover .arts-ct-arrow {
  background: #19191a;
  border-color: #19191a;
  color: #fafafa;
}

.arts-ct-social {
  background: #fff200;
  color: #19191a;
  border-radius: 16px;
  padding: 28px 24px 18px;
  min-height: 100%;
}
.arts-ct-social .arts-ct-kicker { margin-bottom: 10px; }
.arts-ct-social h3 {
  font-family: var(--font-display);
  font-size: 28px;
  font-weight: 500;
  letter-spacing: -0.04em;
  margin: 0 0 18px;
  color: #19191a;
  display: flex;
  align-items: center;
  gap: 10px;
}
.arts-ct-social-heading-ic {
  flex-shrink: 0;
  width: 28px;
  height: 28px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
}
.arts-ct-social-heading-ic svg { width: 22px; height: 22px; display: block; }
.arts-ct-social a {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 14px 0;
  border-bottom: 1px solid rgba(25, 25, 26, 0.12);
  color: #19191a !important;
  font-weight: 600;
  font-size: 15px;
  opacity: 1;
}
.arts-ct-social a:hover { opacity: 0.62; color: #19191a !important; }
.arts-ct-soc-name {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  min-width: 0;
}
.arts-ct-soc-ic {
  flex-shrink: 0;
  width: 18px;
  height: 18px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
}
.arts-ct-soc-ic svg { width: 18px; height: 18px; display: block; }
.arts-ct-social a .arts-ct-soc-go {
  font-family: var(--font-mono);
  font-size: 16px;
  font-weight: 500;
}
.arts-ct-grid.is-solo-channels .arts-ct-channels {
  width: min(640px, 100%);
  margin: 0 auto;
}
.arts-ct-grid.is-solo-social .arts-ct-social {
  min-height: 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
}
.arts-ct-grid.is-solo-social .arts-ct-social .arts-ct-kicker,
.arts-ct-grid.is-solo-social .arts-ct-social h3 {
  justify-content: center;
}
.arts-ct-grid.is-solo-social .arts-ct-social-links {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  align-items: center;
  gap: 8px 40px;
  width: 100%;
}
.arts-ct-grid.is-solo-social .arts-ct-social a {
  width: auto;
  justify-content: center;
  border-bottom: none;
  padding: 10px 4px;
}

.arts-ct-extra {
  margin-top: 40px;
  padding-top: 32px;
  border-top: 1px solid var(--arts-line);
  font-size: 15px;
  line-height: 1.75;
  color: var(--text-secondary);
}
.arts-ct-extra h1, .arts-ct-extra h2, .arts-ct-extra h3 {
  font-family: var(--font-display);
  color: var(--text-primary);
  letter-spacing: -0.03em;
}

.arts-ct-toast {
  position: fixed;
  bottom: 32px;
  left: 50%;
  transform: translateX(-50%) translateY(100px);
  z-index: 10000;
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 10px 16px;
  background: #19191a;
  color: #fafafa;
  border-radius: 4px;
  font-size: 13px;
  font-weight: 600;
  opacity: 0;
  pointer-events: none;
  transition: transform 0.3s cubic-bezier(0.16, 1, 0.3, 1), opacity 0.3s ease;
}
.arts-ct-toast.show {
  transform: translateX(-50%) translateY(0);
  opacity: 1;
}

html[data-theme="dark"] .arts-ct-hero,
body.dark .arts-ct-hero {
  background: #99edff;
  color: #19191a;
}
html[data-theme="dark"] .arts-ct-card,
body.dark .arts-ct-card {
  background: #161618;
  border-color: rgba(255, 255, 255, 0.1);
}
html[data-theme="dark"] .arts-ct-card:hover,
body.dark .arts-ct-card:hover {
  border-color: rgba(255, 255, 255, 0.35);
}
html[data-theme="dark"] .arts-ct-arrow,
body.dark .arts-ct-arrow {
  border-color: rgba(255, 255, 255, 0.14);
  color: #fafafa;
}
html[data-theme="dark"] .arts-ct-card:hover .arts-ct-arrow,
body.dark .arts-ct-card:hover .arts-ct-arrow {
  background: #fafafa;
  border-color: #fafafa;
  color: #0c0c0d;
}

@media (max-width: 900px) {
  .arts-ct-hero, .arts-ct-body { padding-left: 24px; padding-right: 24px; }
  .arts-ct-grid,
  .arts-ct-grid.is-solo-social,
  .arts-ct-grid.is-solo-channels,
  .arts-ct-grid:has(.arts-ct-channels > .arts-ct-card:only-child):has(.arts-ct-social) {
    grid-template-columns: 1fr;
  }
  .arts-ct-pill, .arts-ct-curve { display: none; }
  .arts-ct-hero { padding-top: calc(var(--nav-height) + 36px); padding-bottom: 44px; }
}