:root{color-scheme:light;--paper:#fff;--ink:#242629;--muted:#6b7076;--red:#a5372b;--line:#e5e7ea;--surface:#f6f7f8;--field:#fff;--hover:#f8f9fa;--button:#292c31;--button-text:#fff;--focus:#576c99;--success-bg:#edf5ef;--success-text:#285c36;--error-bg:#fdf0ee;--error-text:#9c3026;--font:Inter,-apple-system,BlinkMacSystemFont,"Segoe UI","Microsoft YaHei","PingFang SC",sans-serif;--serif:var(--font);--mono:Consolas,monospace}
:root[data-theme=dark]{color-scheme:dark;--paper:#151617;--ink:#e4e6e9;--muted:#a0a5ad;--red:#ef9b90;--line:#313438;--surface:#202225;--field:#1c1e20;--hover:#1b1d20;--button:#e4e6e9;--button-text:#202225;--focus:#a3b9ec;--success-bg:#1d2f24;--success-text:#9fd6af;--error-bg:#34221f;--error-text:#f2a89f}
*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;min-height:100vh;background:var(--paper);color:var(--ink);font:15px/1.65 var(--font);-webkit-font-smoothing:antialiased}body [hidden]{display:none!important}a{color:inherit;text-decoration:none}button,input,select,textarea{font:inherit}button{cursor:pointer;color:inherit;border:0;background:none}button:disabled{opacity:.45;cursor:not-allowed}a:focus-visible,button:focus-visible{outline:2px solid var(--focus);outline-offset:4px}a:hover{color:var(--red)}h1,h2,h3,p{overflow-wrap:break-word}.site-header{border-bottom:1px solid var(--line)}.header-inner{max-width:1100px;padding:0 32px;margin:auto;min-height:68px;display:flex;align-items:center;gap:26px}.brand{font-size:18px;font-weight:650;white-space:nowrap}.site-header nav{display:flex;gap:24px;margin-left:auto}.site-header nav a,.admin-link{font-size:13px;color:var(--muted);white-space:nowrap}.site-header nav .nav-active{color:var(--ink);font-weight:550}.site-header nav a:hover,.admin-link:hover{color:var(--ink)}.theme-select{background:var(--paper);color:var(--muted);border:1px solid var(--line);border-radius:4px;padding:6px 8px;font-size:12px;max-width:105px;cursor:pointer}.theme-select:focus-visible{outline:2px solid var(--focus);outline-offset:2px}main{max-width:1100px;margin:auto;padding:0 32px;min-height:calc(100vh - 158px)}.home-page main{max-width:940px}.home-intro{padding:52px 0 32px}.home-intro h1{font-size:30px;line-height:1.4;font-weight:600;letter-spacing:-.03em;margin:0 0 10px}.home-intro p{color:var(--muted);font-size:14px;margin:0}.tool-list{border-top:1px solid var(--line)}.tool-link{display:flex;align-items:center;justify-content:space-between;gap:24px;padding:28px 0;border-bottom:1px solid var(--line);transition:background .15s}.tool-link:hover{background:var(--hover);color:var(--ink)}.tool-link h2{font-size:19px;font-weight:550;line-height:1.5;margin:0 0 7px}.tool-link p{font-size:13px;color:var(--muted);margin:0}.tool-format{font:12px var(--mono);white-space:nowrap;color:var(--muted)}.tool-format span{font-size:20px;margin-left:24px}.home-more{display:grid;grid-template-columns:1fr 1fr;gap:50px;padding:36px 0 55px}.home-more h2{font-size:15px;font-weight:550;margin:0 0 8px}.home-more p{font-size:13px;color:var(--muted);margin:0 0 12px}.text-link,.underlined-link{font-size:13px;color:var(--muted);padding:0;text-decoration:underline;text-underline-offset:4px;text-decoration-color:var(--line);background:none;border-radius:0}.text-link:hover,.underlined-link:hover{color:var(--ink);text-decoration-color:var(--muted)}footer{max-width:1036px;margin:auto;padding:23px 0;border-top:1px solid var(--line);display:flex;justify-content:space-between;gap:20px;color:var(--muted);font-size:11px}.primary-button,.secondary-button,.ghost-button{display:inline-flex;align-items:center;justify-content:center;gap:14px;padding:10px 17px;border-radius:4px;font-size:13px;line-height:1.5;border:1px solid transparent;white-space:nowrap}.primary-button{background:var(--button);color:var(--button-text)}.primary-button:hover{opacity:.88;color:var(--button-text)}.secondary-button{border-color:var(--line);background:var(--field);color:var(--ink)}.secondary-button:hover,.ghost-button:hover{background:var(--surface);color:var(--ink)}.ghost-button{color:var(--muted);border-color:var(--line);background:transparent}.toast{position:fixed;bottom:24px;left:50%;transform:translate(-50%,12px);opacity:0;pointer-events:none;padding:12px 20px;border:1px solid var(--line);border-radius:4px;background:var(--button);color:var(--button-text);font-size:13px;max-width:calc(100% - 32px);z-index:1100;transition:.15s}.toast:not(.show){display:block}.toast.visible{transform:translate(-50%,0);opacity:1}table{border-collapse:collapse;width:100%;font-size:13px;text-align:left;color:var(--ink)}th{font-weight:550;background:var(--surface)}th,td{padding:10px 12px;border-bottom:1px solid var(--line)}.icon-defs{position:absolute;width:0;height:0;overflow:hidden}.icon{width:20px;height:20px;fill:none;stroke:currentColor;stroke-width:1.6;stroke-linecap:round;stroke-linejoin:round}
@media(max-width:1100px){footer{margin:0 32px}}
@media(max-width:640px){.header-inner{padding:14px 20px;gap:14px 20px;flex-wrap:wrap;min-height:64px}.brand{font-size:17px}.site-header nav{gap:18px}.theme-select{margin-left:auto}.admin-link,.account-menu{font-size:12px}.site-header nav a{font-size:13px}main{padding:0 20px}.home-intro{padding:34px 0 25px}.home-intro h1{font-size:26px}.home-intro p{font-size:13px}.tool-link{padding:23px 0;gap:16px}.tool-link h2{font-size:18px}.tool-link p{font-size:12px}.tool-format{font-size:11px}.tool-format span{margin-left:8px}.home-more{grid-template-columns:1fr;gap:25px;padding:28px 0 38px}.home-more h2{font-size:15px}footer{margin:0 20px;font-size:10px;gap:12px}.primary-button,.secondary-button,.ghost-button{padding:10px 13px}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*,*:before,*:after{transition:none!important;animation:none!important}}
.footer-records{display:flex;flex-wrap:wrap;justify-content:flex-end;align-items:center;gap:10px 18px}.footer-records a{display:inline-flex;align-items:center;gap:5px}.footer-records a:hover{color:var(--ink)}.footer-records img{width:14px;height:14px}
@media(max-width:760px){footer{flex-direction:column;align-items:center;text-align:center}.footer-records{justify-content:center}}