.site-footer{border-top:1px solid var(--border);background:var(--surface);color:var(--text-muted)}.footer-inner{flex-wrap:wrap;justify-content:space-between;align-items:center;gap:20px;max-width:1120px;margin:0 auto;padding:28px 24px 14px;display:flex}.brand{letter-spacing:-.01em;color:var(--ink);align-items:center;gap:10px;font-weight:700;text-decoration:none;display:inline-flex}.brand-mark{background:var(--accent);border-radius:6px;width:20px;height:20px}.brand-name{font-family:var(--font-display)}.footer-tagline{margin:6px 0 0;font-size:14px}.footer-socials{flex-wrap:wrap;gap:8px;margin:0;padding:0;list-style:none;display:flex}.social-chip{display:inline-flex;position:relative}.social-link{width:36px;height:36px;color:var(--text-muted);border:1px solid var(--border);border-radius:var(--radius-pill);cursor:default;justify-content:center;align-items:center;text-decoration:none;transition:color .15s,background .15s,border-color .15s;display:inline-flex}a.social-link{cursor:pointer}.social-link:hover,.social-link:focus-visible{color:var(--ink);background:var(--surface-subtle);border-color:var(--border-strong);text-decoration:none}.social-icon{width:18px;height:18px;-webkit-mask:var(--icon) center / contain no-repeat;mask:var(--icon) center / contain no-repeat;background-color:currentColor}.social-qr{background:var(--surface-raised);border:1px solid var(--border);border-radius:var(--radius-md);box-shadow:var(--elev-2);opacity:0;visibility:hidden;pointer-events:none;padding:8px;transition:opacity .15s,transform .15s,visibility .15s;display:block;position:absolute;bottom:calc(100% + 10px);left:50%;transform:translate(-50%)translateY(4px)}.social-chip:hover .social-qr,.social-chip:focus-within .social-qr{opacity:1;visibility:visible;transform:translate(-50%)translateY(0)}.social-qr img{border-radius:var(--radius-sm);width:180px;height:180px;display:block}.footer-rights{max-width:1120px;color:var(--text-faint);margin:0 auto;padding:0 24px 24px;font-size:13px}@media (prefers-reduced-motion:reduce){.social-qr{transition:none}}.lang-switch[data-astro-cid-vhd37z2g]{border:1px solid var(--border);border-radius:var(--radius-pill);background:var(--surface-subtle);align-items:center;gap:2px;padding:2px;display:inline-flex}.lang-link[data-astro-cid-vhd37z2g]{border-radius:var(--radius-pill);color:var(--text-muted);padding:4px 10px;font-size:13px;font-weight:600;text-decoration:none}.lang-link[data-astro-cid-vhd37z2g]:hover{color:var(--ink);background:var(--surface-raised);text-decoration:none}.lang-link[data-astro-cid-vhd37z2g][aria-current]{background:var(--surface-raised);color:var(--ink);box-shadow:var(--elev-1)}@media (width<=720px){.lang-link[data-astro-cid-vhd37z2g]{padding:3px 7px;font-size:12px}}.site-header[data-astro-cid-vwn3tmth]{z-index:40;background:var(--glass-bg);backdrop-filter:blur(var(--glass-blur)) saturate(var(--glass-sat));border-bottom:1px solid var(--border);position:sticky;top:0}.site-nav[data-astro-cid-vwn3tmth]{align-items:center;gap:20px;max-width:1120px;margin:0 auto;padding:14px 24px;display:flex}.brand[data-astro-cid-vwn3tmth]{letter-spacing:-.01em;color:var(--ink);align-items:center;gap:10px;font-weight:700;text-decoration:none;display:inline-flex}.brand-mark[data-astro-cid-vwn3tmth]{background:var(--accent);width:22px;height:22px;box-shadow:0 0 calc(18px * var(--glow-strength)) var(--accent);border-radius:6px}.brand-name[data-astro-cid-vwn3tmth]{font-family:var(--font-display)}.nav-links[data-astro-cid-vwn3tmth]{gap:4px;margin:0 auto;padding:0;list-style:none;display:flex}.nav-links[data-astro-cid-vwn3tmth] a[data-astro-cid-vwn3tmth]{color:var(--ink);border-radius:var(--radius-pill);padding:6px 10px;font-size:15px}.nav-links[data-astro-cid-vwn3tmth] a[data-astro-cid-vwn3tmth]:hover{background:var(--surface-subtle);text-decoration:none}.nav-actions[data-astro-cid-vwn3tmth]{align-items:center;gap:12px;display:inline-flex}.btn-cta[data-astro-cid-vwn3tmth]{background:var(--accent);color:var(--accent-ink);border-radius:var(--radius-pill);white-space:nowrap;padding:9px 18px;font-size:14px;font-weight:600;text-decoration:none}.btn-cta[data-astro-cid-vwn3tmth]:active{transform:scale(.97)}.cta-short[data-astro-cid-vwn3tmth]{display:none}.mobile-nav[data-astro-cid-vwn3tmth]{position:relative}.mobile-toggle[data-astro-cid-vwn3tmth]{border-radius:var(--radius-pill);width:38px;height:38px;color:var(--ink);cursor:pointer;background:0 0;border:1px solid #0000;justify-content:center;align-items:center;list-style:none;display:inline-flex}.mobile-toggle[data-astro-cid-vwn3tmth]::-webkit-details-marker{display:none}.mobile-toggle[data-astro-cid-vwn3tmth]:hover{background:var(--surface-subtle)}.hamburger[data-astro-cid-vwn3tmth]{background:currentColor;border-radius:1px;width:18px;height:2px;position:relative}.hamburger[data-astro-cid-vwn3tmth]:before,.hamburger[data-astro-cid-vwn3tmth]:after{content:"";background:currentColor;border-radius:1px;width:18px;height:2px;position:absolute;left:0}.hamburger[data-astro-cid-vwn3tmth]:before{top:-6px}.hamburger[data-astro-cid-vwn3tmth]:after{top:6px}details[data-astro-cid-vwn3tmth][open] .hamburger[data-astro-cid-vwn3tmth]{background:0 0}details[data-astro-cid-vwn3tmth][open] .hamburger[data-astro-cid-vwn3tmth]:before{top:0;transform:rotate(45deg)}details[data-astro-cid-vwn3tmth][open] .hamburger[data-astro-cid-vwn3tmth]:after{top:0;transform:rotate(-45deg)}.mobile-links[data-astro-cid-vwn3tmth]{z-index:50;background:var(--surface-raised);border:1px solid var(--border);border-radius:var(--radius-md);min-width:230px;box-shadow:var(--elev-2);margin:0;padding:8px;list-style:none;position:absolute;top:calc(100% + 12px);right:0}.mobile-links[data-astro-cid-vwn3tmth] a[data-astro-cid-vwn3tmth]{border-radius:var(--radius-sm);color:var(--ink);padding:10px 14px;font-size:15px;display:block}.mobile-links[data-astro-cid-vwn3tmth] a[data-astro-cid-vwn3tmth]:hover{background:var(--surface-subtle);text-decoration:none}.sr-only[data-astro-cid-vwn3tmth]{clip:rect(0 0 0 0);white-space:nowrap;border:0;width:1px;height:1px;margin:-1px;padding:0;position:absolute;overflow:hidden}@media (width>=721px){.mobile-nav[data-astro-cid-vwn3tmth]{display:none}}@media (width<=720px){.nav-links[data-astro-cid-vwn3tmth],.brand-name[data-astro-cid-vwn3tmth]{display:none}.site-nav[data-astro-cid-vwn3tmth]{gap:12px;padding:10px 16px}.nav-actions[data-astro-cid-vwn3tmth]{gap:8px}.btn-cta[data-astro-cid-vwn3tmth]{padding:8px 12px;font-size:13px}.cta-full[data-astro-cid-vwn3tmth]{display:none}.cta-short[data-astro-cid-vwn3tmth]{display:inline}}html[data-skin=light-editorial]{--surface:#fbfaf8;--surface-raised:#fff;--surface-subtle:#f2f0ec;--ink:#1a1917;--text-muted:#57544e;--text-faint:#8f8a80;--accent:#2456c4;--accent-ink:#fff;--accent-soft:#e6ecfb;--border:#e3e0d9;--border-strong:#c6c1b7;--elev-1:0 1px 2px #19140c0d;--elev-2:0 10px 28px #19140c14;--elev-3:0 28px 72px #19140c1f;--radius-sm:6px;--radius-md:14px;--radius-lg:24px;--radius-xl:28px;--radius-pill:999px;--radius-sheet:20px;--font-display:system-ui, -apple-system, "PingFang SC", "Microsoft YaHei", "Segoe UI", sans-serif;--font-body:system-ui, -apple-system, "PingFang SC", "Microsoft YaHei", "Segoe UI", sans-serif;--font-mono:"SF Mono", "Menlo", "Consolas", monospace;--font-label:"SF Pro", -apple-system, "PingFang SC", "Microsoft YaHei", sans-serif;--track-display:-.02em;--fs-large-title:34px;--fs-title-1:28px;--fs-headline:17px;--fs-body:17px;--fs-callout:16px;--fs-subheadline:15px;--fs-footnote:13px;--fs-caption:12px;--lh-large-title:1.205;--lh-title-1:1.214;--lh-headline:1.294;--lh-body:1.294;--lh-callout:1.3125;--lh-subheadline:1.333;--lh-footnote:1.384;--lh-caption:1.333;--sp-2:2px;--sp-4:4px;--sp-8:8px;--sp-10:10px;--sp-12:12px;--sp-16:16px;--sp-20:20px;--sp-24:24px;--sp-32:32px;--sp-48:48px;--sp-64:64px;--system-red:#ff3b30;--system-orange:#ff9500;--system-yellow:#fc0;--system-green:#34c759;--system-blue:#007aff;--system-indigo:#5856d6;--system-purple:#af52de;--system-pink:#ff2d55;--system-gray:#8e8e93;--system-gray2:#aeaeb2;--system-gray3:#c7c7cc;--system-gray4:#d1d1d6;--system-gray5:#e5e5ea;--system-gray6:#f2f2f7;--semantic-success:var(--system-green);--semantic-warning:var(--system-orange);--semantic-error:var(--system-red);--semantic-info:var(--system-blue);--glass-blur:18px;--glass-sat:1.4;--glass-bg:#fbfaf8b8;--fill-primary:#ffffffb8;--fill-secondary:#ffffff8f;--fill-tertiary:#ffffff5c;--fill-quaternary:#fff3;--noise-opacity:0;--noise-image:none;--glow-strength:0;--hero-bg:radial-gradient(60rem 34rem at 86% -6rem, #2456c40f 0%, transparent 72%), radial-gradient(74rem 42rem at -8rem -10rem, #fffdf9e6 0%, transparent 70%)}html[data-skin=deep-sea]{--surface:#0b1728;--surface-raised:#12233a;--surface-subtle:#0e1c30;--ink:#eef5fd;--text-muted:#a9bfd4;--text-faint:#6d849c;--accent:#46d2c0;--accent-ink:#06201c;--accent-soft:#0e2f38;--border:#1d334d;--border-strong:#31506f;--elev-1:0 1px 2px #02081080;--elev-2:0 12px 32px #00060e80;--elev-3:0 30px 80px #00040a99;--radius-sm:6px;--radius-md:16px;--radius-lg:24px;--radius-xl:28px;--radius-pill:999px;--radius-sheet:20px;--font-display:system-ui, -apple-system, "PingFang SC", "Microsoft YaHei", "Segoe UI", sans-serif;--font-body:system-ui, -apple-system, "PingFang SC", "Microsoft YaHei", "Segoe UI", sans-serif;--font-mono:"SF Mono", "Menlo", "Consolas", monospace;--font-label:"SF Pro", -apple-system, "PingFang SC", "Microsoft YaHei", sans-serif;--track-display:-.018em;--fs-large-title:34px;--fs-title-1:28px;--fs-headline:17px;--fs-body:17px;--fs-callout:16px;--fs-subheadline:15px;--fs-footnote:13px;--fs-caption:12px;--lh-large-title:1.205;--lh-title-1:1.214;--lh-headline:1.294;--lh-body:1.294;--lh-callout:1.3125;--lh-subheadline:1.333;--lh-footnote:1.384;--lh-caption:1.333;--sp-2:2px;--sp-4:4px;--sp-8:8px;--sp-10:10px;--sp-12:12px;--sp-16:16px;--sp-20:20px;--sp-24:24px;--sp-32:32px;--sp-48:48px;--sp-64:64px;--system-red:#ff3b30;--system-orange:#ff9500;--system-yellow:#fc0;--system-green:#34c759;--system-blue:#007aff;--system-indigo:#5856d6;--system-purple:#af52de;--system-pink:#ff2d55;--system-gray:#8e8e93;--system-gray2:#aeaeb2;--system-gray3:#c7c7cc;--system-gray4:#d1d1d6;--system-gray5:#e5e5ea;--system-gray6:#f2f2f7;--semantic-success:var(--system-green);--semantic-warning:var(--system-orange);--semantic-error:var(--system-red);--semantic-info:var(--system-blue);--glass-blur:18px;--glass-sat:1.4;--glass-bg:#0b172899;--fill-primary:#12233ab8;--fill-secondary:#12233a8f;--fill-tertiary:#12233a5c;--fill-quaternary:#12233a33;--noise-opacity:0;--noise-image:none;--glow-strength:0;--hero-bg:radial-gradient(90% 90% at 20% 0%, #123a4a 0%, transparent 60%), radial-gradient(120% 90% at 85% 100%, #0a2540 0%, var(--surface) 55%)}html[data-skin=deep-tech]{--surface:#08080b;--surface-raised:#101016;--surface-subtle:#0c0c11;--ink:#f3f3f1;--text-muted:#b7b7b2;--text-faint:#7c7c77;--accent:#5ee0a9;--accent-ink:#07140f;--accent-soft:#0f2a20;--border:#232328;--border-strong:#3a3a41;--elev-1:0 1px 2px #0009;--elev-2:0 12px 30px #0000008c;--elev-3:0 30px 80px #000000a6;--radius-sm:6px;--radius-md:14px;--radius-lg:24px;--radius-xl:28px;--radius-pill:999px;--radius-sheet:20px;--font-display:system-ui, -apple-system, "PingFang SC", "Microsoft YaHei", "Segoe UI", sans-serif;--font-body:system-ui, -apple-system, "PingFang SC", "Microsoft YaHei", "Segoe UI", sans-serif;--font-mono:"SF Mono", "Menlo", "Consolas", monospace;--font-label:"SF Pro", -apple-system, "PingFang SC", "Microsoft YaHei", sans-serif;--track-display:-.02em;--fs-large-title:34px;--fs-title-1:28px;--fs-headline:17px;--fs-body:17px;--fs-callout:16px;--fs-subheadline:15px;--fs-footnote:13px;--fs-caption:12px;--lh-large-title:1.205;--lh-title-1:1.214;--lh-headline:1.294;--lh-body:1.294;--lh-callout:1.3125;--lh-subheadline:1.333;--lh-footnote:1.384;--lh-caption:1.333;--sp-2:2px;--sp-4:4px;--sp-8:8px;--sp-10:10px;--sp-12:12px;--sp-16:16px;--sp-20:20px;--sp-24:24px;--sp-32:32px;--sp-48:48px;--sp-64:64px;--system-red:#ff3b30;--system-orange:#ff9500;--system-yellow:#fc0;--system-green:#34c759;--system-blue:#007aff;--system-indigo:#5856d6;--system-purple:#af52de;--system-pink:#ff2d55;--system-gray:#8e8e93;--system-gray2:#aeaeb2;--system-gray3:#c7c7cc;--system-gray4:#d1d1d6;--system-gray5:#e5e5ea;--system-gray6:#f2f2f7;--semantic-success:var(--system-green);--semantic-warning:var(--system-orange);--semantic-error:var(--system-red);--semantic-info:var(--system-blue);--glass-blur:20px;--glass-sat:1.5;--glass-bg:#0a0a0e99;--fill-primary:#101016b8;--fill-secondary:#1010168f;--fill-tertiary:#1010165c;--fill-quaternary:#10101633;--noise-opacity:0;--noise-image:none;--glow-strength:0;--hero-bg:radial-gradient(100% 80% at 70% -10%, #1c2a1e 0%, transparent 55%), radial-gradient(90% 90% at 0% 100%, #10141c 0%, transparent 60%)}html[data-skin=glass]{--surface:#e8eef6;--surface-raised:#fff9;--surface-subtle:#fff6;--ink:#1b2838;--text-muted:#46525f;--text-faint:#7a8696;--accent:#2f6bd6;--accent-ink:#fff;--accent-soft:#dbe6f8;--border:#f7f9fd;--border-strong:#cdd6e2;--elev-1:0 1px 2px #1822340f;--elev-2:0 12px 32px #1822341a;--elev-3:0 30px 80px #18223424;--radius-sm:6px;--radius-md:18px;--radius-lg:28px;--radius-xl:32px;--radius-pill:999px;--radius-sheet:20px;--font-display:system-ui, -apple-system, "PingFang SC", "Microsoft YaHei", "Segoe UI", sans-serif;--font-body:system-ui, -apple-system, "PingFang SC", "Microsoft YaHei", "Segoe UI", sans-serif;--font-mono:"SF Mono", "Menlo", "Consolas", monospace;--font-label:"SF Pro", -apple-system, "PingFang SC", "Microsoft YaHei", sans-serif;--track-display:-.02em;--fs-large-title:34px;--fs-title-1:28px;--fs-headline:17px;--fs-body:17px;--fs-callout:16px;--fs-subheadline:15px;--fs-footnote:13px;--fs-caption:12px;--lh-large-title:1.205;--lh-title-1:1.214;--lh-headline:1.294;--lh-body:1.294;--lh-callout:1.3125;--lh-subheadline:1.333;--lh-footnote:1.384;--lh-caption:1.333;--sp-2:2px;--sp-4:4px;--sp-8:8px;--sp-10:10px;--sp-12:12px;--sp-16:16px;--sp-20:20px;--sp-24:24px;--sp-32:32px;--sp-48:48px;--sp-64:64px;--system-red:#ff3b30;--system-orange:#ff9500;--system-yellow:#fc0;--system-green:#34c759;--system-blue:#007aff;--system-indigo:#5856d6;--system-purple:#af52de;--system-pink:#ff2d55;--system-gray:#8e8e93;--system-gray2:#aeaeb2;--system-gray3:#c7c7cc;--system-gray4:#d1d1d6;--system-gray5:#e5e5ea;--system-gray6:#f2f2f7;--semantic-success:var(--system-green);--semantic-warning:var(--system-orange);--semantic-error:var(--system-red);--semantic-info:var(--system-blue);--glass-blur:20px;--glass-sat:1.6;--glass-bg:#ffffff8c;--fill-primary:#ffffff8c;--fill-secondary:#ffffff61;--fill-tertiary:#ffffff38;--fill-quaternary:#ffffff1a;--noise-opacity:0;--noise-image:none;--glow-strength:0;--hero-bg:radial-gradient(120% 90% at 75% -10%, #dbe7f7 0%, transparent 55%)}html[data-skin=paper-vintage]{--surface:#f4ead6;--surface-raised:#faf3e3;--surface-subtle:#efe3ca;--ink:#3a2f1f;--text-muted:#6b5b44;--text-faint:#8b7a5d;--accent:#a34f1d;--accent-ink:#fff8ea;--accent-soft:#e9d5b3;--border:#d9c9a6;--border-strong:#bfa97f;--elev-1:0 1px 2px #60462214;--elev-2:0 10px 28px #6046221a;--elev-3:0 26px 70px #60462224;--radius-sm:4px;--radius-md:10px;--radius-lg:18px;--radius-xl:24px;--radius-pill:999px;--radius-sheet:16px;--font-display:Georgia, "Times New Roman", "Songti SC", "SimSun", serif;--font-body:Georgia, "Times New Roman", "Songti SC", "SimSun", "PingFang SC", serif;--font-mono:"SF Mono", "Menlo", "Consolas", monospace;--font-label:"SF Pro", -apple-system, "PingFang SC", "Microsoft YaHei", sans-serif;--track-display:-.01em;--fs-large-title:34px;--fs-title-1:28px;--fs-headline:17px;--fs-body:17px;--fs-callout:16px;--fs-subheadline:15px;--fs-footnote:13px;--fs-caption:12px;--lh-large-title:1.205;--lh-title-1:1.214;--lh-headline:1.294;--lh-body:1.294;--lh-callout:1.3125;--lh-subheadline:1.333;--lh-footnote:1.384;--lh-caption:1.333;--sp-2:2px;--sp-4:4px;--sp-8:8px;--sp-10:10px;--sp-12:12px;--sp-16:16px;--sp-20:20px;--sp-24:24px;--sp-32:32px;--sp-48:48px;--sp-64:64px;--system-red:#ff3b30;--system-orange:#ff9500;--system-yellow:#fc0;--system-green:#34c759;--system-blue:#007aff;--system-indigo:#5856d6;--system-purple:#af52de;--system-pink:#ff2d55;--system-gray:#8e8e93;--system-gray2:#aeaeb2;--system-gray3:#c7c7cc;--system-gray4:#d1d1d6;--system-gray5:#e5e5ea;--system-gray6:#f2f2f7;--semantic-success:var(--system-green);--semantic-warning:var(--system-orange);--semantic-error:var(--system-red);--semantic-info:var(--system-blue);--glass-blur:0px;--glass-sat:1;--glass-bg:#f4ead6e6;--fill-primary:#faf3e3e0;--fill-secondary:#faf3e3ad;--fill-tertiary:#faf3e373;--fill-quaternary:#faf3e340;--noise-opacity:.05;--noise-image:url(data:image/svg+xml,%3Csvg%20xmlns%3D%22http%3A%2F%2Fwww.w3.org%2F2000%2Fsvg%22%20width%3D%22200%22%20height%3D%22200%22%3E%3Cfilter%20id%3D%22n%22%3E%3CfeTurbulence%20type%3D%22fractalNoise%22%20baseFrequency%3D%220.9%22%20numOctaves%3D%222%22%2F%3E%3CfeColorMatrix%20type%3D%22matrix%22%20values%3D%220%200%200%200%200%20%200%200%200%200%200%20%200%200%200%200%200%20%200%200%200%200.6%200%22%2F%3E%3C%2Ffilter%3E%3Crect%20width%3D%22200%22%20height%3D%22200%22%20filter%3D%22url\(%23n\)%22%2F%3E%3C%2Fsvg%3E);--glow-strength:0;--hero-bg:radial-gradient(110% 90% at 50% 0%, #fbf3e0 0%, transparent 60%)}html[data-skin=mono-high-contrast]{--surface:#000;--surface-raised:#0f0f0f;--surface-subtle:#0a0a0a;--ink:#fff;--text-muted:#e6e6e6;--text-faint:#b0b0b0;--accent:#fff;--accent-ink:#000;--accent-soft:#1f1f1f;--border:#3a3a3a;--border-strong:#e0e0e0;--elev-1:0 1px 2px #ffffff14;--elev-2:0 12px 30px #000c;--elev-3:0 30px 80px #000000d9;--radius-sm:0px;--radius-md:0px;--radius-lg:0px;--radius-xl:0px;--radius-pill:999px;--radius-sheet:0px;--font-display:system-ui, -apple-system, "PingFang SC", "Microsoft YaHei", "Segoe UI", sans-serif;--font-body:system-ui, -apple-system, "PingFang SC", "Microsoft YaHei", "Segoe UI", sans-serif;--font-mono:"SF Mono", "Menlo", "Consolas", monospace;--font-label:"SF Pro", -apple-system, "PingFang SC", "Microsoft YaHei", sans-serif;--track-display:-.02em;--fs-large-title:34px;--fs-title-1:28px;--fs-headline:17px;--fs-body:17px;--fs-callout:16px;--fs-subheadline:15px;--fs-footnote:13px;--fs-caption:12px;--lh-large-title:1.205;--lh-title-1:1.214;--lh-headline:1.294;--lh-body:1.294;--lh-callout:1.3125;--lh-subheadline:1.333;--lh-footnote:1.384;--lh-caption:1.333;--sp-2:2px;--sp-4:4px;--sp-8:8px;--sp-10:10px;--sp-12:12px;--sp-16:16px;--sp-20:20px;--sp-24:24px;--sp-32:32px;--sp-48:48px;--sp-64:64px;--system-red:#ff3b30;--system-orange:#ff9500;--system-yellow:#fc0;--system-green:#34c759;--system-blue:#007aff;--system-indigo:#5856d6;--system-purple:#af52de;--system-pink:#ff2d55;--system-gray:#8e8e93;--system-gray2:#aeaeb2;--system-gray3:#c7c7cc;--system-gray4:#d1d1d6;--system-gray5:#e5e5ea;--system-gray6:#f2f2f7;--semantic-success:var(--system-green);--semantic-warning:var(--system-orange);--semantic-error:var(--system-red);--semantic-info:var(--system-blue);--glass-blur:0px;--glass-sat:1;--glass-bg:#000;--fill-primary:#0f0f0fe6;--fill-secondary:#0f0f0fa6;--fill-tertiary:#0f0f0f66;--fill-quaternary:#0f0f0f38;--noise-opacity:0;--noise-image:none;--glow-strength:0;--hero-bg:radial-gradient(90% 70% at 50% 0%, #161616 0%, transparent 65%)}html[data-skin=cyber-neon]{--surface:#150a2b;--surface-raised:#1f1140;--surface-subtle:#190d33;--ink:#f1eaff;--text-muted:#b7a7de;--text-faint:#8a7ab2;--accent:#00e5ff;--accent-ink:#041820;--accent-soft:#00e5ff24;--border:#33215e;--border-strong:#533c9e;--elev-1:0 1px 2px #00000080;--elev-2:0 12px 32px #0000008c;--elev-3:0 30px 80px #0009;--radius-sm:6px;--radius-md:14px;--radius-lg:24px;--radius-xl:28px;--radius-pill:999px;--radius-sheet:20px;--font-display:system-ui, -apple-system, "PingFang SC", "Microsoft YaHei", "Segoe UI", sans-serif;--font-body:system-ui, -apple-system, "PingFang SC", "Microsoft YaHei", "Segoe UI", sans-serif;--font-mono:"SF Mono", "Menlo", "Consolas", monospace;--font-label:"SF Pro", -apple-system, "PingFang SC", "Microsoft YaHei", sans-serif;--track-display:-.02em;--fs-large-title:34px;--fs-title-1:28px;--fs-headline:17px;--fs-body:17px;--fs-callout:16px;--fs-subheadline:15px;--fs-footnote:13px;--fs-caption:12px;--lh-large-title:1.205;--lh-title-1:1.214;--lh-headline:1.294;--lh-body:1.294;--lh-callout:1.3125;--lh-subheadline:1.333;--lh-footnote:1.384;--lh-caption:1.333;--sp-2:2px;--sp-4:4px;--sp-8:8px;--sp-10:10px;--sp-12:12px;--sp-16:16px;--sp-20:20px;--sp-24:24px;--sp-32:32px;--sp-48:48px;--sp-64:64px;--system-red:#ff3b30;--system-orange:#ff9500;--system-yellow:#fc0;--system-green:#34c759;--system-blue:#007aff;--system-indigo:#5856d6;--system-purple:#af52de;--system-pink:#ff2d55;--system-gray:#8e8e93;--system-gray2:#aeaeb2;--system-gray3:#c7c7cc;--system-gray4:#d1d1d6;--system-gray5:#e5e5ea;--system-gray6:#f2f2f7;--semantic-success:var(--system-green);--semantic-warning:var(--system-orange);--semantic-error:var(--system-red);--semantic-info:var(--system-blue);--glass-blur:0px;--glass-sat:1;--glass-bg:#150a2bd9;--fill-primary:#1f1140d9;--fill-secondary:#1f1140ad;--fill-tertiary:#1f11407a;--fill-quaternary:#1f114047;--noise-opacity:.18;--noise-image:url(data:image/svg+xml,%3Csvg%20xmlns%3D%22http%3A%2F%2Fwww.w3.org%2F2000%2Fsvg%22%20width%3D%2236%22%20height%3D%2236%22%3E%3Cpath%20d%3D%22M36%200H0V36%22%20fill%3D%22none%22%20stroke%3D%22%23b8e6ff%22%20stroke-opacity%3D%220.5%22%2F%3E%3C%2Fsvg%3E);--glow-strength:1;--hero-bg:radial-gradient(80% 70% at 15% 0%, #4c1d95 0%, transparent 55%), radial-gradient(70% 70% at 100% 15%, #00e5ff 0%, transparent 42%)}html[data-skin=amber-warm]{--surface:#fff7ec;--surface-raised:#fffdf6;--surface-subtle:#fbf0dd;--ink:#3d2e1b;--text-muted:#7a6243;--text-faint:#a08a68;--accent:#b04a13;--accent-ink:#fffdf6;--accent-soft:#f4e1c4;--border:#ead8b6;--border-strong:#d2a45c;--elev-1:0 1px 2px #7850140f;--elev-2:0 10px 28px #78501417;--elev-3:0 26px 70px #7850141f;--radius-sm:6px;--radius-md:14px;--radius-lg:22px;--radius-xl:28px;--radius-pill:999px;--radius-sheet:20px;--font-display:system-ui, -apple-system, "PingFang SC", "Microsoft YaHei", "Segoe UI", sans-serif;--font-body:system-ui, -apple-system, "PingFang SC", "Microsoft YaHei", "Segoe UI", sans-serif;--font-mono:"SF Mono", "Menlo", "Consolas", monospace;--font-label:"SF Pro", -apple-system, "PingFang SC", "Microsoft YaHei", sans-serif;--track-display:-.01em;--fs-large-title:34px;--fs-title-1:28px;--fs-headline:17px;--fs-body:17px;--fs-callout:16px;--fs-subheadline:15px;--fs-footnote:13px;--fs-caption:12px;--lh-large-title:1.205;--lh-title-1:1.214;--lh-headline:1.294;--lh-body:1.294;--lh-callout:1.3125;--lh-subheadline:1.333;--lh-footnote:1.384;--lh-caption:1.333;--sp-2:2px;--sp-4:4px;--sp-8:8px;--sp-10:10px;--sp-12:12px;--sp-16:16px;--sp-20:20px;--sp-24:24px;--sp-32:32px;--sp-48:48px;--sp-64:64px;--system-red:#ff3b30;--system-orange:#ff9500;--system-yellow:#fc0;--system-green:#34c759;--system-blue:#007aff;--system-indigo:#5856d6;--system-purple:#af52de;--system-pink:#ff2d55;--system-gray:#8e8e93;--system-gray2:#aeaeb2;--system-gray3:#c7c7cc;--system-gray4:#d1d1d6;--system-gray5:#e5e5ea;--system-gray6:#f2f2f7;--semantic-success:var(--system-green);--semantic-warning:var(--system-orange);--semantic-error:var(--system-red);--semantic-info:var(--system-blue);--glass-blur:0px;--glass-sat:1;--glass-bg:#fff7ece6;--fill-primary:#fffdf6d9;--fill-secondary:#fffdf6ad;--fill-tertiary:#fffdf67a;--fill-quaternary:#fffdf64d;--noise-opacity:0;--noise-image:none;--glow-strength:0;--hero-bg:radial-gradient(110% 90% at 80% 0%, #ffe9c9 0%, transparent 60%)}html[data-skin=zen-white]{--surface:#fff;--surface-raised:#fff;--surface-subtle:#f6f6f4;--ink:#1a1a18;--text-muted:#6a6a66;--text-faint:#909089;--accent:#155ee8;--accent-ink:#fff;--accent-soft:#e9effc;--border:#ececec;--border-strong:#d8d8d8;--elev-1:0 1px 2px #1010100a;--elev-2:0 8px 24px #1010100f;--elev-3:0 24px 64px #10101014;--radius-sm:2px;--radius-md:4px;--radius-lg:8px;--radius-xl:12px;--radius-pill:999px;--radius-sheet:12px;--font-display:system-ui, -apple-system, "PingFang SC", "Microsoft YaHei", "Segoe UI", sans-serif;--font-body:system-ui, -apple-system, "PingFang SC", "Microsoft YaHei", "Segoe UI", sans-serif;--font-mono:"SF Mono", "Menlo", "Consolas", monospace;--font-label:"SF Pro", -apple-system, "PingFang SC", "Microsoft YaHei", sans-serif;--track-display:-.02em;--fs-large-title:34px;--fs-title-1:28px;--fs-headline:17px;--fs-body:17px;--fs-callout:16px;--fs-subheadline:15px;--fs-footnote:13px;--fs-caption:12px;--lh-large-title:1.205;--lh-title-1:1.214;--lh-headline:1.294;--lh-body:1.294;--lh-callout:1.3125;--lh-subheadline:1.333;--lh-footnote:1.384;--lh-caption:1.333;--sp-2:2px;--sp-4:4px;--sp-8:8px;--sp-10:10px;--sp-12:12px;--sp-16:16px;--sp-20:20px;--sp-24:24px;--sp-32:32px;--sp-48:48px;--sp-64:64px;--system-red:#ff3b30;--system-orange:#ff9500;--system-yellow:#fc0;--system-green:#34c759;--system-blue:#007aff;--system-indigo:#5856d6;--system-purple:#af52de;--system-pink:#ff2d55;--system-gray:#8e8e93;--system-gray2:#aeaeb2;--system-gray3:#c7c7cc;--system-gray4:#d1d1d6;--system-gray5:#e5e5ea;--system-gray6:#f2f2f7;--semantic-success:var(--system-green);--semantic-warning:var(--system-orange);--semantic-error:var(--system-red);--semantic-info:var(--system-blue);--glass-blur:0px;--glass-sat:1;--glass-bg:#ffffffd9;--fill-primary:#ffffffd9;--fill-secondary:#ffffffa6;--fill-tertiary:#ffffff6b;--fill-quaternary:#ffffff3d;--noise-opacity:0;--noise-image:none;--glow-strength:0;--hero-bg:none}html[data-skin=dusk-gradient]{--surface:#f7f0f6;--surface-raised:#fffdfb;--surface-subtle:#efe6f1;--ink:#33202e;--text-muted:#6b4d62;--text-faint:#9c7a90;--accent:#a13ab8;--accent-ink:#fff;--accent-soft:#f0e0f7;--border:#e7dbe6;--border-strong:#cdb6c9;--elev-1:0 1px 2px #5028460f;--elev-2:0 10px 28px #50284617;--elev-3:0 26px 70px #5028461f;--radius-sm:6px;--radius-md:14px;--radius-lg:22px;--radius-xl:28px;--radius-pill:999px;--radius-sheet:20px;--font-display:system-ui, -apple-system, "PingFang SC", "Microsoft YaHei", "Segoe UI", sans-serif;--font-body:system-ui, -apple-system, "PingFang SC", "Microsoft YaHei", "Segoe UI", sans-serif;--font-mono:"SF Mono", "Menlo", "Consolas", monospace;--font-label:"SF Pro", -apple-system, "PingFang SC", "Microsoft YaHei", sans-serif;--track-display:-.02em;--fs-large-title:34px;--fs-title-1:28px;--fs-headline:17px;--fs-body:17px;--fs-callout:16px;--fs-subheadline:15px;--fs-footnote:13px;--fs-caption:12px;--lh-large-title:1.205;--lh-title-1:1.214;--lh-headline:1.294;--lh-body:1.294;--lh-callout:1.3125;--lh-subheadline:1.333;--lh-footnote:1.384;--lh-caption:1.333;--sp-2:2px;--sp-4:4px;--sp-8:8px;--sp-10:10px;--sp-12:12px;--sp-16:16px;--sp-20:20px;--sp-24:24px;--sp-32:32px;--sp-48:48px;--sp-64:64px;--system-red:#ff3b30;--system-orange:#ff9500;--system-yellow:#fc0;--system-green:#34c759;--system-blue:#007aff;--system-indigo:#5856d6;--system-purple:#af52de;--system-pink:#ff2d55;--system-gray:#8e8e93;--system-gray2:#aeaeb2;--system-gray3:#c7c7cc;--system-gray4:#d1d1d6;--system-gray5:#e5e5ea;--system-gray6:#f2f2f7;--semantic-success:var(--system-green);--semantic-warning:var(--system-orange);--semantic-error:var(--system-red);--semantic-info:var(--system-blue);--glass-blur:0px;--glass-sat:1;--glass-bg:#f7f0f6d9;--fill-primary:#fffdfbd9;--fill-secondary:#fffdfbad;--fill-tertiary:#fffdfb7a;--fill-quaternary:#fffdfb47;--noise-opacity:0;--noise-image:none;--glow-strength:.35;--hero-bg:linear-gradient(135deg, #ffe3bd 0%, #ffd9e6 42%, #e8d5ff 100%)}*,:before,:after{box-sizing:border-box}html{-webkit-text-size-adjust:100%}body{background:var(--surface);color:var(--ink);font-family:var(--font-body);font-optical-sizing:auto;margin:0;line-height:1.6;transition:background-color .3s,color .3s}h1,h2,h3,h4{font-family:var(--font-display);letter-spacing:var(--track-display);color:var(--ink);margin:0 0 .5em;line-height:1.08}p{margin:0 0 1em}a{color:var(--accent);text-decoration:none}a:hover{text-decoration:underline}::selection{background:var(--accent-soft)}img{max-width:100%;height:auto}:focus-visible{outline:2px solid var(--accent);outline-offset:3px;border-radius:2px}@media (prefers-reduced-motion:reduce){*,:before,:after{scroll-behavior:auto!important;transition:opacity .2s!important;animation:none!important}.reveal{opacity:1!important;transform:none!important}}@media (prefers-reduced-transparency:reduce){body{transition:none}.site-header{background:var(--surface);backdrop-filter:none}}main section[id]{scroll-margin-top:92px}.skip-link{z-index:100;background:var(--accent);color:var(--accent-ink);border-radius:var(--radius-pill);padding:10px 16px;font-weight:600;position:fixed;top:-60px;left:16px}.skip-link:focus{top:12px}