:root{--navy:#14213d;--navy2:#0d1730;--gray:#e6e8eb;--concrete:#9aa3ad;--orange:#f58220;--text:#1d2433}
*{box-sizing:border-box}html{-webkit-text-size-adjust:100%}
body{margin:0;font-family:-apple-system,BlinkMacSystemFont,"PingFang TC","Microsoft JhengHei","Noto Sans TC","Segoe UI",sans-serif;color:var(--text);background:#f5f6f7;line-height:1.7}
a{color:#c2600c}.wrap{max-width:1080px;margin:0 auto;padding:0 20px}
header{background:var(--navy2);color:#fff;border-bottom:4px solid var(--orange)}
.nav{display:flex;align-items:center;justify-content:space-between;gap:12px;padding:14px 20px;max-width:1080px;margin:0 auto;flex-wrap:wrap}
.brand{display:flex;align-items:center;gap:10px;color:#fff;text-decoration:none;font-weight:700}.brand img{width:32px;height:32px}
.nav nav a{color:#cfd5dc;text-decoration:none;margin-left:16px;font-size:.95rem}.nav nav a:hover{color:var(--orange)}
.hero{background:linear-gradient(135deg,var(--navy) 0%,var(--navy2) 100%);color:#fff;padding:64px 0 72px;position:relative;overflow:hidden}
.hero:after{content:"";position:absolute;inset:0;background:repeating-linear-gradient(90deg,transparent 0 39px,rgba(255,255,255,.04) 39px 40px),repeating-linear-gradient(0deg,transparent 0 39px,rgba(255,255,255,.04) 39px 40px);pointer-events:none}
.tag{display:inline-block;background:var(--orange);color:#1a1205;font-weight:700;font-size:.8rem;padding:3px 10px;border-radius:3px;letter-spacing:.05em}
.hero h1{font-size:clamp(1.9rem,6vw,3rem);line-height:1.25;margin:16px 0 12px}.hero p{color:#cfd5dc;max-width:620px;font-size:1.05rem}
.btns{display:flex;gap:12px;flex-wrap:wrap;margin-top:24px;position:relative;z-index:1}
.btn{display:inline-block;padding:12px 20px;border-radius:6px;font-weight:700;text-decoration:none}
.btn-o{background:var(--orange);color:#1a1205}.btn-g{border:1.5px solid var(--concrete);color:#fff}
section{padding:56px 0}h2{font-size:1.6rem;margin:0 0 8px;color:var(--navy)}h2:after{content:"";display:block;width:48px;height:4px;background:var(--orange);margin-top:8px}
.lead{color:#4b5563;margin-bottom:28px}
.grid{display:grid;gap:16px;grid-template-columns:1fr}@media(min-width:640px){.grid{grid-template-columns:1fr 1fr}}@media(min-width:960px){.grid{grid-template-columns:repeat(3,1fr)}}
.card{background:#fff;border:1px solid #dde1e6;border-top:4px solid var(--navy);border-radius:6px;padding:20px}.card h3{margin:0 0 6px;color:var(--navy);font-size:1.1rem}.card p{margin:0;color:#4b5563;font-size:.95rem}
.alt{background:var(--gray)}
table{width:100%;border-collapse:collapse;background:#fff;border-radius:6px;overflow:hidden}th,td{text-align:left;padding:12px 14px;border-bottom:1px solid #e3e6ea;vertical-align:top;font-size:.95rem}th{width:34%;background:#f0f2f4;color:var(--navy)}
.ph{background:#fff4e6;color:#9a4a00;padding:0 4px;border-radius:3px}
footer{background:var(--navy2);color:#aeb6c0;font-size:.85rem;padding:32px 0}footer a{color:#fff}footer .small{font-size:.75rem;color:#7d8794;margin-top:10px}
.doc{background:#fff;border:1px solid #dde1e6;border-radius:6px;padding:24px;margin:32px auto}.doc h1{color:var(--navy);margin-top:0}.doc h2{font-size:1.15rem;margin-top:1.6em}.doc h2:after{display:none}
.note{border-left:4px solid var(--orange);padding-left:12px;color:#4b5563}
.vgrid{display:grid;gap:20px;grid-template-columns:1fr;align-items:start}@media(min-width:960px){.vgrid{grid-template-columns:3fr 2fr}}
.vcard{margin:0;background:#fff;border:1px solid #dde1e6;border-top:4px solid var(--orange);border-radius:6px;overflow:hidden}
.vcard video{display:block;width:100%;height:auto;background:#0d1730}
.vcard figcaption{padding:14px 18px;color:#4b5563;font-size:.95rem}.vcard figcaption strong{display:block;color:var(--navy);font-size:1.05rem;margin-bottom:2px}
@media(max-width:640px){.vcard video{max-height:80vh;object-fit:contain}}
#demo{border-top:1px solid #dde1e6}