:root{
  --bg:#0d1a22;--bg2:#12242e;--card:#162a36;--line:#23404f;
  --teal:#27c2b0;--mint:#d8fff7;--ink:#eaf6f4;--mut:#8fb1ad;--maxw:1140px;
}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{background:var(--bg);color:var(--ink);font-family:"PingFang TC","Noto Sans TC","Microsoft JhengHei",system-ui,sans-serif;line-height:1.85}
a{color:inherit;text-decoration:none}
img{max-width:100%;height:auto;display:block}
.wrap{max-width:var(--maxw);margin:0 auto;padding:0 24px}
ul.list{margin:14px 0 0 22px}
ul.list li{margin-bottom:10px}
b,strong{color:#fff}

header.site{position:sticky;top:0;z-index:60;background:rgba(13,26,34,.9);backdrop-filter:blur(8px);border-bottom:1px solid var(--line)}
.top{display:flex;align-items:center;justify-content:space-between;height:70px}
.logo{display:flex;align-items:center;gap:10px;font-weight:800}
.logo .hex{width:40px;height:40px;display:grid;place-items:center;color:#fff;font-weight:900;background:linear-gradient(135deg,#27c2b0,#17626b);clip-path:polygon(50% 0,100% 25%,100% 75%,50% 100%,0 75%,0 25%)}
.logo .word{font-size:1.35rem;color:#fff}
.logo .word small{display:block;font-size:.58rem;font-weight:700;color:var(--teal);letter-spacing:.2em}
nav.main{display:flex;gap:20px;align-items:center;font-size:.9rem}
nav.main a{color:var(--mut);font-weight:600;padding:6px 0}
nav.main a.active{color:var(--teal)}
nav.main a:not(.active):hover{color:#fff}
.nav-toggle{display:none;background:none;border:0;font-size:1.7rem;color:#fff;cursor:pointer}

.btn{display:inline-block;background:var(--teal);color:#04171a;padding:12px 28px;border-radius:6px;font-weight:800;font-size:.95rem;transition:transform .15s,box-shadow .15s}
.btn:hover{transform:translateY(-2px);box-shadow:0 10px 22px rgba(39,194,176,.3)}
.btn.ghost{background:transparent;color:var(--teal);border:1.5px solid var(--teal)}
.btn.sm{padding:8px 16px;font-size:.84rem}

.hero{padding:70px 0 54px;background:radial-gradient(circle at 82% 8%, #155d65 0, transparent 48%), radial-gradient(circle at 8% 90%, #123c48 0, transparent 50%), var(--bg)}
.hero .wrap{display:grid;grid-template-columns:1.15fr .85fr;gap:44px;align-items:center}
.eyebrow{display:inline-block;color:var(--teal);font-weight:800;font-size:.8rem;letter-spacing:.16em;border:1px solid var(--line);background:rgba(39,194,176,.1);padding:5px 14px;border-radius:999px;margin-bottom:16px}
.hero h1{font-size:clamp(1.9rem,5vw,3.3rem);line-height:1.15;font-weight:900;color:#fff}
.hero h1 em{font-style:normal;color:var(--teal)}
.hero .sub{margin:20px 0 0;max-width:620px;color:var(--mut);font-size:1.05rem}
.hero .cta-row{margin-top:28px;display:flex;gap:14px;flex-wrap:wrap}
.panel-dark{background:var(--card);border:1px solid var(--line);border-radius:14px;padding:24px}
.ph-line{padding:13px 0;border-bottom:1px dashed var(--line);font-size:.93rem}
.ph-line:last-child{border-bottom:0}
.ph-line b{display:block;color:#fff;margin-bottom:2px}
.tag{display:inline-block;background:rgba(39,194,176,.12);border:1px solid rgba(39,194,176,.4);color:var(--mint);padding:3px 10px;border-radius:999px;font-size:.78rem;margin:3px 4px 3px 0}

section.blk{padding:60px 0}
section.blk.alt{background:var(--bg2)}
h2.sec{font-size:1.65rem;font-weight:900;margin-bottom:10px;color:#fff}
h2.sec::before{content:"";display:inline-block;width:4px;height:22px;background:var(--teal);margin-right:12px;border-radius:3px;vertical-align:-3px}
p.sec-sub{color:var(--mut);margin-bottom:30px;max-width:680px}
.grid{display:grid;gap:20px}
.g2{grid-template-columns:repeat(2,1fr)}
.g3{grid-template-columns:repeat(3,1fr)}
.card{background:var(--card);border:1px solid var(--line);border-radius:14px;padding:24px;transition:transform .15s,border-color .15s}
.card:hover{transform:translateY(-3px);border-color:var(--teal)}
.card .ic{width:44px;height:44px;border-radius:10px;background:rgba(39,194,176,.14);color:var(--teal);display:grid;place-items:center;font-size:1.2rem;font-weight:900;margin-bottom:12px}
.card h3{font-size:1.1rem;margin-bottom:8px;color:#fff}
.card p{color:var(--mut);font-size:.94rem}
.split{display:grid;grid-template-columns:1.1fr .9fr;gap:44px;align-items:start}
.note{background:rgba(39,194,176,.08);border-left:4px solid var(--teal);padding:15px 20px;border-radius:8px;color:var(--mint);font-size:.92rem;margin-top:24px}
.chips{display:flex;gap:10px;flex-wrap:wrap;margin:16px 0}
.chips span{background:var(--card);border:1px solid var(--line);padding:6px 14px;border-radius:999px;color:var(--teal);font-weight:600;font-size:.88rem}
.narrow{max-width:840px!important}

.phead{padding:52px 0 28px;border-bottom:1px solid var(--line);background:var(--bg2)}
.phead h1{font-size:clamp(1.8rem,4.2vw,2.8rem);color:#fff;font-weight:900;line-height:1.2}
.lede{margin-top:14px;max-width:700px;color:var(--mut);font-size:1.03rem}
.crumb{font-size:.86rem;color:var(--mut);margin-bottom:16px}
.crumb a{color:var(--teal);font-weight:600}

.cta-card{background:linear-gradient(120deg,#17626b,#27c2b0);color:#04171a;border-radius:16px;padding:42px 38px;text-align:center}
.cta-card h2{color:#04171a;font-size:1.5rem;font-weight:900}
.cta-card p{color:#052a30;margin:10px 0 22px}
.cta-card .btn{background:#fff;color:#043a3f}

table.tb{width:100%;border-collapse:collapse;font-size:.92rem;background:var(--card);border:1px solid var(--line);border-radius:10px;overflow:hidden}
.tb th,.tb td{padding:12px 15px;border-bottom:1px solid var(--line);text-align:left}
.tb th{background:#1c3a47;color:var(--teal);font-weight:700}
.tb tr:last-child td{border-bottom:0}
.tb td{color:var(--mut)}

.faqwrap{display:flex;flex-direction:column;gap:12px}
.faq{background:var(--card);border:1px solid var(--line);border-radius:10px;overflow:hidden}
.faq summary{padding:18px 22px;cursor:pointer;font-weight:700;color:#fff;list-style:none;display:flex;justify-content:space-between;align-items:center}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{content:"+";font-size:1.2rem;color:var(--teal);font-weight:800}
.faq[open] summary::after{content:"–"}
.faq .a{padding:4px 22px 16px;color:var(--mut);font-size:.95rem}

footer.site{border-top:1px solid var(--line);margin-top:56px;padding:42px 0 34px;color:var(--mut);font-size:.88rem;background:var(--bg2)}
.ft{display:flex;justify-content:space-between;gap:30px;flex-wrap:wrap}
.ft nav{display:flex;gap:16px;flex-wrap:wrap}
.ft nav a:hover{color:var(--teal)}

@media(max-width:860px){
  .g3{grid-template-columns:1fr}
  .g2{grid-template-columns:1fr}
  .split{grid-template-columns:1fr}
  .hero .wrap{grid-template-columns:1fr}
  .nav-toggle{display:block}
  nav.main{position:fixed;top:70px;left:0;right:0;background:var(--bg);flex-direction:column;align-items:flex-start;padding:18px 24px;gap:16px;border-bottom:1px solid var(--line);display:none}
  nav.main.open{display:flex}
  .phead{padding:36px 0 20px}
  .hero{padding:48px 0 40px}
}