/* ChillDesk 營運網站共用樣式（首頁、使用說明） */
*{box-sizing:border-box;margin:0;padding:0}
:root{--bg:#faf9f6;--bg2:#f2f0ea;--card:#fff;--text:#1e1e1e;--text2:#555;--text3:#8a8a8a;--line:#e6e3dc;--accent:#1e1e1e;--accent-text:#fff;--brand:#92400e;--ok:#166534;--ok-bg:#dcfce7;--err:#b91c1c;--err-bg:#fee2e2}
html{scroll-behavior:smooth}
body{background:var(--bg);color:var(--text);font-family:"Noto Sans TC","PingFang TC","Microsoft JhengHei",system-ui,sans-serif;line-height:1.7;-webkit-text-size-adjust:100%}
a{color:inherit}
.wrap{max-width:1080px;margin:0 auto;padding:0 20px}
.narrow{max-width:720px}
.top{position:sticky;top:0;z-index:10;background:rgba(250,249,246,.92);backdrop-filter:saturate(1.4) blur(8px);-webkit-backdrop-filter:saturate(1.4) blur(8px);border-bottom:1px solid var(--line)}
.top-in{display:flex;align-items:center;justify-content:space-between;height:60px;gap:12px}
.brand{display:flex;align-items:center;gap:8px;font-weight:700;font-size:18px;text-decoration:none;letter-spacing:.3px}
.mark{width:30px;height:30px;border-radius:8px;background:var(--accent);color:var(--accent-text);display:inline-flex;align-items:center;justify-content:center;font-size:16px}
.beta{font-size:10px;font-weight:600;color:var(--brand);border:1px solid var(--brand);border-radius:6px;padding:0 5px;line-height:16px}
.nav{display:flex;align-items:center;gap:6px}
.nav a{font-size:14px;text-decoration:none;padding:7px 10px;border-radius:8px;color:var(--text2)}
.nav a:hover{background:var(--bg2);color:var(--text)}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:6px;background:var(--accent);color:var(--accent-text)!important;border:1px solid var(--accent);border-radius:10px;padding:8px 16px;font-size:14px;font-weight:600;text-decoration:none;cursor:pointer;font-family:inherit}
.btn:hover{opacity:.88}
.btn.ghost{background:transparent;color:var(--text)!important;border-color:var(--line)}
.btn.lg{padding:12px 22px;font-size:15px}
.btn:disabled{opacity:.5;cursor:default}
.nav a.btn{color:var(--accent-text)!important;padding:7px 14px}
.nav a.ghost{border:1px solid var(--line)}
.hero{padding:72px 0 56px;text-align:center}
.pill{display:inline-block;font-size:13px;color:var(--brand);background:#fdf3e7;border-radius:999px;padding:4px 12px;margin-bottom:18px}
h1{font-size:42px;line-height:1.3;letter-spacing:.5px;margin-bottom:16px}
.lead{font-size:17px;color:var(--text2);max-width:640px;margin:0 auto 26px}
.cta{display:flex;gap:10px;justify-content:center;flex-wrap:wrap}
.note{font-size:13px;color:var(--text3);margin-top:14px}
.sec{padding:64px 0}
.sec.alt{background:var(--bg2)}
h2{font-size:28px;line-height:1.4;margin-bottom:8px}
.sub{color:var(--text2);margin-bottom:28px}
.grid{display:grid;grid-template-columns:repeat(4,1fr);gap:14px}
.card{background:var(--card);border:1px solid var(--line);border-radius:14px;padding:18px}
.card .ic{font-size:24px;margin-bottom:6px}
.card h3{font-size:16px;margin-bottom:4px}
.card p{font-size:14px;color:var(--text2)}
.two{display:grid;grid-template-columns:1fr 1fr;gap:40px}
.two p{color:var(--text2);margin:6px 0 12px}
.check{list-style:none}
.check li{position:relative;padding-left:24px;margin:6px 0;font-size:15px}
.check li:before{content:"✓";position:absolute;left:0;color:var(--ok);font-weight:700}
.steps{display:grid;grid-template-columns:repeat(3,1fr);gap:14px;margin-top:20px}
.step{background:var(--card);border:1px solid var(--line);border-radius:14px;padding:20px}
.step b{display:inline-flex;width:30px;height:30px;border-radius:50%;background:var(--accent);color:var(--accent-text);align-items:center;justify-content:center;margin-bottom:8px}
.step h3{font-size:16px}
.step p{font-size:14px;color:var(--text2)}
.form{background:var(--card);border:1px solid var(--line);border-radius:16px;padding:22px;display:grid;gap:14px}
.form label{display:block;font-size:14px;font-weight:600}
.form label i{color:var(--err);font-style:normal}
.form .hint{font-weight:400;color:var(--text3);font-size:12px}
.form input,.form select,.form textarea{display:block;width:100%;margin-top:6px;border:1px solid var(--line);border-radius:10px;padding:10px 12px;font-size:16px;font-family:inherit;background:#fff;color:var(--text);font-weight:400}
.form input:focus,.form select:focus,.form textarea:focus{outline:2px solid #d6b48a;border-color:transparent}
.row2{display:grid;grid-template-columns:1fr 1fr;gap:14px}
.hp{position:absolute!important;left:-9999px!important;width:1px;height:1px;overflow:hidden}
.msg{font-size:14px;min-height:20px}
.msg.ok{color:var(--ok);background:var(--ok-bg);border-radius:10px;padding:10px 12px}
.msg.err{color:var(--err);background:var(--err-bg);border-radius:10px;padding:10px 12px}
details{background:var(--card);border:1px solid var(--line);border-radius:12px;padding:12px 16px;margin-bottom:10px}
summary{cursor:pointer;font-weight:600}
details p{color:var(--text2);margin-top:8px}
.foot{border-top:1px solid var(--line);padding:28px 0;color:var(--text2);font-size:14px}
.foot .small{font-size:12px;color:var(--text3);margin-top:4px}
/* 使用說明 */
.guide{display:grid;grid-template-columns:220px 1fr;gap:32px;padding:40px 0 64px}
.toc{position:sticky;top:76px;align-self:start;font-size:14px}
.toc a{display:block;text-decoration:none;color:var(--text2);padding:5px 10px;border-radius:8px}
.toc a:hover{background:var(--bg2);color:var(--text)}
.doc h2{font-size:22px;margin:36px 0 8px;padding-top:8px}
.doc h2:first-child{margin-top:0}
.doc h3{font-size:16px;margin:16px 0 6px}
.doc p,.doc li{color:var(--text2);font-size:15px}
.doc ol,.doc ul{padding-left:22px;margin:6px 0 10px}
.doc li{margin:4px 0}
.doc .tip{background:#fdf3e7;border-radius:10px;padding:10px 14px;font-size:14px;color:#7a4a12;margin:10px 0}
.video{aspect-ratio:16/9;background:var(--bg2);border:1px dashed var(--line);border-radius:12px;display:flex;align-items:center;justify-content:center;color:var(--text3);font-size:14px;margin:10px 0 14px}
.video video{width:100%;height:100%;border-radius:12px}
kbd{font-family:inherit;background:var(--bg2);border:1px solid var(--line);border-radius:6px;padding:0 6px;font-size:13px;color:var(--text)}
@media (max-width:900px){.grid{grid-template-columns:repeat(2,1fr)}.two{grid-template-columns:1fr;gap:28px}.guide{grid-template-columns:1fr}.toc{position:static;display:flex;flex-wrap:wrap;gap:4px}}
@media (max-width:640px){h1{font-size:30px}.hero{padding:48px 0 40px}.lead{font-size:16px}.sec{padding:48px 0}h2{font-size:23px}.grid,.steps,.row2{grid-template-columns:1fr}.nav a:not(.btn){display:none}.nav a.ghost{display:inline-flex}}