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html[data-theme="paper"]{color-scheme:light;--ink:#172b43;--muted:#596b7e;--line:#d8dfe8;--paper:#f5f6f8;--accent:#2259a6;--card:#fff;--panel:#fff;--edge:#d8dfe8;--round:10px;--numerals:Arial,sans-serif;--glow:none;--canvas:#f5f6f8;--shadow:0 8px 28px #24395608}
html[data-theme="terminal"]{color-scheme:dark;--ink:#b8f7c7;--muted:#8abd96;--line:#28553a;--paper:#050b07;--accent:#65f695;--card:#07120b;--panel:#07120b;--edge:#32744a;--round:0px;--numerals:Consolas,"Courier New",monospace;--heading:Consolas,"Microsoft YaHei",monospace;--glow:0 0 14px #5aff7330;--canvas:#050b07;--shadow:4px 4px 0 #173823}
html[data-theme="sunset"]{color-scheme:light;--ink:#503a30;--muted:#7c6050;--line:#dbc8b8;--paper:#f7eddf;--accent:#a84e31;--card:linear-gradient(145deg,#fffaf1,#f4ddc9);--panel:#fff7ed;--edge:#dec4af;--round:28px;--numerals:Georgia,"Times New Roman",serif;--heading:Georgia,"Songti SC","SimSun",serif;--glow:none;--canvas:radial-gradient(ellipse at 90% 0,#edb79577,transparent 60%),#f7eddf;--shadow:0 15px 45px #9e5c2510}
html[data-theme="aurora"]{color-scheme:dark;--ink:#efedff;--muted:#b5b4d4;--line:#414369;--paper:#0c102b;--accent:#bdb0ff;--card:linear-gradient(130deg,#263763cc,#312254cc);--panel:linear-gradient(120deg,#182b48e6,#2a1b49e6);--edge:#655b92;--round:24px;--numerals:"Trebuchet MS",Arial,sans-serif;--heading:"Trebuchet MS","Microsoft YaHei",sans-serif;--glow:0 0 40px #a886ff45;--canvas:radial-gradient(ellipse at 5% 20%,#13646b66,transparent 45%),radial-gradient(ellipse at 95% 55%,#6b379d66,transparent 55%),#0c102b;--shadow:0 20px 70px #0004}
body{background:var(--canvas);color:var(--ink)}h1{font-family:var(--heading)}.hero{background:var(--card);border-color:var(--edge);border-radius:var(--round);box-shadow:var(--shadow)}.anniversary{background:var(--panel);border-color:var(--edge);border-radius:var(--round)}.number{font-family:var(--numerals);color:var(--accent);text-shadow:var(--glow)}.value,.remainder b{font-family:var(--numerals);color:var(--ink)}.mark,.eyebrow,.anniversary .label{color:var(--accent)}.unit,.live{color:var(--muted)}.quote,.note,footer{color:var(--muted)}.orbit{border-color:var(--line)}.orbit:after{background:var(--accent);box-shadow:0 0 15px var(--accent)}.live:before{background:var(--accent);box-shadow:none}html[data-theme="paper"] body:before,html[data-theme="sunset"] body:before{display:none}html[data-theme="paper"] .orbit{display:none}html[data-theme="terminal"] body:before{background:repeating-linear-gradient(0deg,transparent 0 3px,#59ff7905 3px 4px)}html[data-theme="terminal"] h1{letter-spacing:1px}html[data-theme="terminal"] .orbit{border-style:dashed}html[data-theme="sunset"] h1{font-weight:500}html[data-theme="sunset"] .orbit{border-style:dotted}html[data-theme="aurora"] .hero{border-top:2px solid #a8a0eb}.topline{gap:12px;align-items:flex-start}.header-actions{display:flex;flex-direction:column;align-items:flex-end;gap:9px;min-width:0}.theme-control{display:flex;align-items:center;gap:7px;color:var(--muted);font-size:11px}.theme-control select{min-height:44px;max-width:160px;padding:8px 25px 8px 10px;border:1px solid var(--edge);border-radius:8px;color:var(--ink);background:var(--paper);font:inherit;font-size:12px;cursor:pointer}.theme-control select:focus-visible,#retrySync:focus-visible{outline:3px solid var(--accent);outline-offset:3px}.theme-hint{text-align:right;margin:7px 0 0;color:var(--muted);font-size:10px}#retrySync{background:var(--panel)!important;border-color:var(--edge)!important;color:var(--ink)!important}@media(max-width:350px){.theme-control{gap:4px}.theme-control select{max-width:135px}.brand{gap:5px}.topline{gap:7px}}@media(prefers-reduced-motion:reduce){main{animation:none}}
:root[data-theme="obsidian"]{color-scheme:dark;--ink:#f5ead1;--muted:#c0b294;--line:#534932;--paper:#11100d;--accent:#e8c470;--card:linear-gradient(155deg,#2b251a,#15130f);--panel:#1a1711;--edge:#756038;--round:6px;--numerals:Georgia,"Times New Roman",serif;--heading:Georgia,"Songti SC","SimSun",serif;--glow:none;--canvas:radial-gradient(ellipse at 50% 0,#66502133,transparent 60%),#11100d;--shadow:0 16px 40px #0005}
:root[data-theme="swiss"]{color-scheme:light;--ink:#151515;--muted:#575757;--line:#bfbfbf;--paper:#fafafa;--accent:#bf2025;--card:#fff;--panel:#fff;--edge:#151515;--round:0px;--numerals:Arial,Helvetica,sans-serif;--heading:Arial,"Microsoft YaHei",sans-serif;--glow:none;--canvas:#fafafa;--shadow:none}
:root[data-theme="blueprint"]{color-scheme:dark;--ink:#f0f8ff;--muted:#b3d6f2;--line:#638db4;--paper:#10355a;--accent:#fff5c4;--card:#123b63;--panel:#10375c;--edge:#99c8ec;--round:2px;--numerals:Consolas,"Courier New",monospace;--heading:Consolas,"Microsoft YaHei",monospace;--glow:none;--canvas:linear-gradient(#a0d5ff12 1px,transparent 1px),linear-gradient(90deg,#a0d5ff12 1px,transparent 1px),#10355a;--shadow:none}
:root[data-theme="bamboo"]{color-scheme:light;--ink:#283c35;--muted:#5f7267;--line:#b8c8bc;--paper:#edf1e9;--accent:#285f49;--card:#f9fbf5;--panel:#f5f8ef;--edge:#b7c8b8;--round:18px 3px 18px 3px;--numerals:Georgia,"Times New Roman",serif;--heading:"Songti SC","SimSun",serif;--glow:none;--canvas:radial-gradient(ellipse at 100% 0,#b8cdb955,transparent 55%),#edf1e9;--shadow:0 10px 35px #3d5d3b0a}
:root[data-theme="arcade"]{color-scheme:dark;--ink:#fff0fa;--muted:#d7b7d6;--line:#8a578b;--paper:#211127;--accent:#ffe66d;--card:#321738;--panel:#2d1634;--edge:#ed8cda;--round:0px;--numerals:"Courier New",Consolas,monospace;--heading:"Courier New","Microsoft YaHei",monospace;--glow:3px 3px 0 #b43b94;--canvas:linear-gradient(45deg,#6a346b18 25%,transparent 25%,transparent 75%,#6a346b18 75%),#211127;--shadow:5px 5px 0 #80538c}
html[data-theme="obsidian"] .hero{border-top:3px solid var(--accent)}html[data-theme="obsidian"] h1{font-weight:400;letter-spacing:5px}html[data-theme="obsidian"] .orbit{border-style:double;border-width:3px}html[data-theme="obsidian"] .anniversary .label{letter-spacing:3px}
html[data-theme="swiss"] body:before,html[data-theme="bamboo"] body:before,html[data-theme="obsidian"] body:before{display:none}html[data-theme="swiss"] .orbit{display:none}html[data-theme="swiss"] h1{font-weight:900;letter-spacing:-1px}html[data-theme="swiss"] .hero{border:0;border-left:7px solid var(--accent);box-shadow:none}html[data-theme="swiss"] .anniversary{border:0;border-top:4px solid var(--ink)}html[data-theme="swiss"] .number{font-weight:800;letter-spacing:-4px}html[data-theme="swiss"] .eyebrow{font-weight:700;letter-spacing:2px}
html[data-theme="blueprint"] body{background-size:20px 20px,20px 20px,auto}html[data-theme="blueprint"] body:before{display:none}html[data-theme="blueprint"] .hero,html[data-theme="blueprint"] .anniversary{border:1px dashed var(--edge);outline:1px solid #99c8ec33;outline-offset:4px}html[data-theme="blueprint"] .orbit{border-style:dashed;border-color:#bbddff80}html[data-theme="blueprint"] h1{font-weight:500;letter-spacing:4px}html[data-theme="blueprint"] .number{text-decoration:underline;text-decoration-thickness:1px;text-underline-offset:10px}
html[data-theme="bamboo"] h1{font-weight:400;letter-spacing:6px}html[data-theme="bamboo"] .hero{border-left:4px solid var(--accent)}html[data-theme="bamboo"] .orbit{border-color:#759b7740;border-style:dotted}html[data-theme="bamboo"] .anniversary .label{letter-spacing:3px}html[data-theme="bamboo"] .number{font-weight:400}
html[data-theme="arcade"] body{background-size:28px 28px}html[data-theme="arcade"] body:before{display:none}html[data-theme="arcade"] .hero,html[data-theme="arcade"] .anniversary{border:2px solid var(--edge)}html[data-theme="arcade"] .orbit{border-radius:0;transform:translate(-50%,-50%) rotate(45deg);width:150px;height:150px;border-style:dashed;opacity:.35}html[data-theme="arcade"] .orbit:after{border-radius:0}html[data-theme="arcade"] h1{font-weight:800;text-shadow:2px 2px 0 #893171;letter-spacing:1px}html[data-theme="arcade"] .live:before{border-radius:0}html[data-theme="arcade"] .value{font-weight:700}
.theme-menu{position:relative;z-index:5}.theme-menu summary{list-style:none;cursor:pointer;min-height:44px;padding:12px 10px;border:1px solid var(--edge);border-radius:8px;background:var(--paper);color:var(--ink);font-size:12px;white-space:nowrap}.theme-menu summary:after{content:' ▾';color:var(--accent)}.theme-menu summary::-webkit-details-marker{display:none}.theme-menu summary:focus-visible{outline:3px solid var(--accent);outline-offset:3px}.theme-menu .theme-control{position:absolute;right:0;top:calc(100% + 6px);display:block;width:194px;max-width:calc(100vw - 32px);padding:10px;background:var(--paper);border:1px solid var(--edge);border-radius:10px;box-shadow:0 12px 35px #0004}.theme-menu select{display:block;min-width:0;width:100%;max-width:none!important;height:228px;max-height:40vh;overflow-y:auto;padding:4px!important;margin-top:7px;border-radius:5px}.theme-menu option{padding:10px 7px;min-height:42px}.theme-menu option:checked{background:var(--accent);color:var(--paper);font-weight:700}