:root{--ink:#10232c;--teal:#073e48;--gold:#a67c3c;--muted:#7c8692;--line:#dce2e8;--surface:#f6f8fa;--r:12px;font-family:"Microsoft YaHei","PingFang SC",system-ui,sans-serif;color:var(--ink);background:#fff;font-synthesis:none}*{box-sizing:border-box}body{margin:0}a{color:inherit;text-decoration:none}button,input,select,textarea{font:inherit}button,a,input{touch-action:manipulation}button,a:focus-visible,input:focus-visible{outline:3px solid #3ba7af;outline-offset:4px}h1,h2,h3,p{margin:0}.brandbar{height:66px;background:#092d35;color:#f3dfb9;display:flex;align-items:center;justify-content:space-between;padding:0 max(22px,calc((100vw - 1000px)/2));border-bottom:1px solid #ffffff12}.brand{font-family:"STSong","SimSun",serif;font-size:26px;font-weight:700;letter-spacing:2px}.brandbar>span{color:#e1efef;font-family:"STSong","SimSun",serif;font-size:17px;letter-spacing:1px}.hero{position:relative;background:#082e36 url('/toolbox/hero.webp') center center/cover no-repeat;min-height:280px;display:flex;align-items:center}.hero-copy{width:100%;max-width:1000px;margin:auto;padding:28px 22px 34px;color:#fff}.hero h1{font-family:"STSong","SimSun",serif;font-size:46px;font-weight:600;line-height:1.5;letter-spacing:1px}.hero em{font-style:normal;color:#e5c58a}.hero p{font-size:14px;letter-spacing:3px;margin-top:15px;color:#d4e1e2}.tools-section,.recent-section{max-width:1044px;margin:auto;padding:30px 22px 0}h2{font-size:23px;line-height:1.5;font-weight:650;letter-spacing:.2px}.tools-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:14px;margin-top:22px}.tool{display:flex;align-items:center;gap:18px;border:1px solid var(--line);border-radius:var(--r);min-height:112px;padding:22px 24px;transition:border-color .2s,transform .2s,box-shadow .2s;background:#fff}.tool:hover{border-color:#a0b8bb;box-shadow:0 6px 24px #143b460b;transform:translateY(-2px)}.tool>img{width:42px;height:42px;flex-shrink:0}.tool h3{font-size:20px;font-weight:650;line-height:1.5}.tool p{color:var(--muted);font-size:14px;line-height:1.7;margin-top:4px}.arrow{font-size:28px;color:var(--gold);margin-left:auto;font-weight:300}.recent-section{padding-top:28px}.recent-section h2{font-size:21px;margin-bottom:15px}.empty{background:var(--surface);border-radius:var(--r);text-align:center;padding:30px 16px;color:#929ca7;font-size:15px}.recent-link{display:flex;align-items:center;gap:14px;padding:14px 4px;border-bottom:1px solid #edf0f2}.recent-link img{height:24px;width:24px}.recent-link span:last-child{color:var(--muted);margin-left:auto;font-size:12px}.footnote{text-align:center;color:#9ba3ac;font-size:12px;margin:26px 0 112px}.bottom-nav{position:fixed;bottom:0;left:0;right:0;display:flex;justify-content:center;gap:100px;background:#ffffffed;backdrop-filter:blur(14px);border-top:1px solid #e9edf0;padding:12px 0 max(12px,env(safe-area-inset-bottom));z-index:5}.bottom-nav a{font-size:13px;color:var(--muted);display:flex;flex-direction:column;align-items:center;gap:5px;position:relative}.bottom-nav img{width:24px;height:24px}.bottom-nav .selected{color:var(--teal)}.bottom-nav .selected:after{content:"";height:2px;width:30px;background:var(--teal);position:absolute;bottom:-7px;border-radius:2px}.bottom-nav a:not(.selected) img{opacity:.55}dialog{border:1px solid #dce5e7;border-radius:20px;padding:0;width:min(420px,calc(100vw - 36px));box-shadow:0 30px 100px #00192340}dialog::backdrop{background:#021d2c77;backdrop-filter:blur(5px)}dialog form{position:relative;padding:32px 27px}.close{position:absolute;right:16px;top:10px;background:none;border:0;color:var(--muted);font-size:27px;padding:4px 10px;cursor:pointer}.dialog-brand{color:var(--teal);font-size:14px}dialog h2{font-family:"STSong","SimSun",serif;font-size:30px;line-height:1.55;margin:20px 0 12px}dialog p{font-size:14px;line-height:1.8;color:var(--muted)}dialog label{display:block;font-size:13px;margin:25px 0 8px}dialog input{width:100%;padding:14px 12px;border:1px solid #cdd6dd;border-radius:9px;outline-color:#167a82}#login-error{min-height:25px;font-size:13px;color:#ae3443;margin:4px 0}.primary{background:var(--teal);color:#fff;width:100%;padding:15px;border:0;border-radius:9px;cursor:pointer}.primary span{margin-left:10px}dialog small{display:block;font-size:11px;color:var(--muted);line-height:1.7;margin-top:16px}button:disabled{opacity:.6}html{scroll-behavior:smooth;scroll-padding-top:20px}@media(max-width:600px){.brandbar{height:57px;padding:0 20px}.brand{font-size:23px}.brandbar>span{font-size:15px}.hero{min-height:210px;background-position:58% center}.hero-copy{padding:24px 20px 30px}.hero h1{font-size:29px;line-height:1.6;letter-spacing:.5px}.hero p{font-size:11px;letter-spacing:1px;margin-top:15px;max-width:250px}.tools-section,.recent-section{padding:25px 16px 0}h2{font-size:22px}.tools-grid{gap:10px;margin-top:18px}.tool{min-height:117px;padding:15px 13px;display:grid;grid-template-columns:28px 1fr;gap:7px 9px;position:relative;align-content:center}.tool>img{width:27px;height:27px;grid-column:1;grid-row:1}.tool>div{display:contents}.tool h3{grid-column:2;font-size:15px;line-height:1.6;white-space:nowrap;letter-spacing:-.3px}.tool p{grid-column:1/3;font-size:12px;line-height:1.7;margin-top:3px;padding-right:6px}.arrow{position:absolute;right:10px;bottom:12px;font-size:18px}.recent-section{padding-top:26px}.recent-section h2{font-size:20px}.empty{padding:27px 12px}.bottom-nav{gap:100px}.footnote{margin-top:24px}}@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}.tool{transition:none}}