:root{
  --ink:#111111;
  --muted:#4f5965;
  --soft:#f7f7f4;
  --paper:#ffffff;
  --line:#d8d8d2;
  --line-dark:#a9aaa5;
  --accent:#1f4e79;
  --accent-soft:#eef4f8;
  --accent-2:#6f7f8d;
  --ok:#22664d;
  --warn:#8a5a00;
  --shadow:0 10px 28px rgba(17,17,17,.08);
  --radius:18px;
  --max:1120px;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  color:var(--ink);
  background:var(--paper);
  font-family:"Noto Sans TC","PingFang TC","Microsoft JhengHei",Arial,sans-serif;
  line-height:1.75;
  letter-spacing:.015em;
}
a{color:inherit;text-decoration:none}
a:hover{text-decoration:underline;text-underline-offset:4px}
img,svg{max-width:100%;display:block}
.container{width:min(var(--max),calc(100% - 40px));margin-inline:auto}
.skip{position:absolute;left:-999px;top:auto;width:1px;height:1px;overflow:hidden}.skip:focus{left:20px;top:20px;width:auto;height:auto;background:#fff;border:2px solid var(--ink);padding:8px 12px;z-index:20}
.site-top{border-bottom:1px solid var(--line);background:rgba(255,255,255,.94);position:sticky;top:0;z-index:10;backdrop-filter:blur(10px)}
.nav{height:76px;display:flex;align-items:center;justify-content:space-between;gap:24px}
.brand{display:flex;gap:12px;align-items:center;font-weight:800;line-height:1.2;text-decoration:none}
.brand-mark{width:40px;height:40px;border:1.5px solid var(--ink);display:grid;place-items:center;font-family:Georgia,serif;font-weight:700;letter-spacing:-.05em}
.brand small{display:block;font-size:.72rem;color:var(--muted);font-weight:600;letter-spacing:.08em;text-transform:uppercase;margin-top:2px}
.navlinks{display:flex;align-items:center;gap:6px;flex-wrap:wrap;justify-content:flex-end}
.navlinks a{font-size:.95rem;padding:9px 12px;border-radius:999px;color:#2b2b2b;text-decoration:none}
.navlinks a.active,.navlinks a:hover{background:var(--accent-soft);color:var(--accent)}
.menu{display:none;border:1px solid var(--line);background:#fff;padding:8px 12px;border-radius:999px;font-weight:700}
.hero{padding:70px 0 40px;background:linear-gradient(180deg,#fff 0,#fafafa 100%);border-bottom:1px solid var(--line)}
.hero-grid{display:grid;grid-template-columns:1.12fr .88fr;gap:46px;align-items:center}
.eyebrow{display:inline-flex;gap:8px;align-items:center;border-top:2px solid var(--ink);padding-top:10px;color:var(--muted);font-size:.95rem;font-weight:700;letter-spacing:.08em;text-transform:uppercase}
h1{font-family:Georgia,"Noto Serif TC","PMingLiU",serif;font-size:clamp(2.7rem,5.2vw,5.2rem);line-height:1.08;margin:18px 0 16px;font-weight:700;letter-spacing:.02em}
h1 .en{display:block;font-family:"Noto Sans TC",Arial,sans-serif;font-size:.22em;letter-spacing:.16em;text-transform:uppercase;color:var(--accent);font-weight:800;margin-bottom:10px}
.lead{font-size:1.13rem;color:#2a2a2a;max-width:720px;margin:0 0 22px}
.meta-list{display:grid;gap:8px;margin:22px 0;padding:0;list-style:none;color:#232323}.meta-list li{display:flex;gap:10px}.meta-list li:before{content:"";width:7px;height:7px;background:var(--accent);border-radius:50%;margin-top:13px;flex:0 0 auto}
.actions{display:flex;gap:12px;flex-wrap:wrap;margin-top:26px}.btn{display:inline-flex;align-items:center;justify-content:center;min-height:44px;padding:9px 18px;border:1.3px solid var(--ink);border-radius:999px;font-weight:800;text-decoration:none}.btn.primary{background:var(--ink);color:#fff}.btn.subtle{border-color:var(--line-dark);color:var(--accent)}.btn:hover{transform:translateY(-1px);box-shadow:var(--shadow);text-decoration:none}
.hero-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);box-shadow:var(--shadow);padding:24px}.plane-figure{border:1px solid var(--line);background:#fbfbf8;border-radius:14px;padding:18px}.plane-hero-image{padding:10px;background:#f5f5f2}.plane-hero-image img{width:100%;height:auto;border-radius:10px}.caption{font-size:.87rem;color:var(--muted);margin-top:12px;border-top:1px solid var(--line);padding-top:10px}.spec-row{display:grid;grid-template-columns:repeat(3,1fr);gap:10px;margin-top:14px}.spec{border:1px solid var(--line);border-radius:12px;padding:12px;background:#fff}.spec b{display:block;font-size:1.35rem;color:var(--accent);line-height:1.2}.spec span{font-size:.82rem;color:var(--muted)}
.section{padding:64px 0;border-bottom:1px solid var(--line)}.section.soft{background:var(--soft)}.section-head{display:flex;justify-content:space-between;gap:34px;align-items:end;margin-bottom:26px}.kicker{font-size:.83rem;color:var(--accent);font-weight:900;letter-spacing:.16em;text-transform:uppercase}.section h2{font-family:Georgia,"Noto Serif TC","PMingLiU",serif;font-size:clamp(1.75rem,3vw,2.6rem);line-height:1.18;margin:4px 0 0}.section-head p{max-width:520px;color:var(--muted);margin:0}.grid{display:grid;gap:18px}.grid.two{grid-template-columns:repeat(2,1fr)}.grid.three{grid-template-columns:repeat(3,1fr)}.grid.four{grid-template-columns:repeat(4,1fr)}.card{border:1px solid var(--line);border-radius:var(--radius);background:#fff;padding:24px;box-shadow:0 3px 14px rgba(0,0,0,.03)}.card h3{font-size:1.25rem;margin:0 0 10px}.card p{color:var(--muted);margin:0}.card .num{font-family:Georgia,serif;font-size:2.2rem;color:var(--accent);line-height:1;font-weight:700}.tag-row{display:flex;flex-wrap:wrap;gap:8px;margin-top:14px}.tag{border:1px solid var(--line-dark);border-radius:999px;padding:4px 10px;font-size:.86rem;color:#2a2a2a;background:#fff}.highlight-card{border-top:4px solid var(--accent)}
.academic-note{border-left:4px solid var(--accent);background:var(--accent-soft);padding:20px 22px;border-radius:0 14px 14px 0;color:#203040}.academic-note p{margin:0;color:#203040}.small{font-size:.92rem;color:var(--muted)}
.table-wrap{overflow:auto;border:1px solid var(--line);border-radius:16px;background:#fff}table{width:100%;border-collapse:collapse;min-width:680px}th,td{padding:14px 16px;border-bottom:1px solid var(--line);text-align:left;vertical-align:top}th{background:#f3f3ef;font-size:.92rem;color:#333}tr:last-child td{border-bottom:0}.price{font-weight:900;color:var(--accent);white-space:nowrap}
.timeline{display:grid;gap:16px}.day{display:grid;grid-template-columns:150px 1fr;gap:20px;border:1px solid var(--line);border-radius:var(--radius);background:#fff;padding:20px}.day-label{border-right:1px solid var(--line);padding-right:18px}.day-label b{font-family:Georgia,serif;font-size:1.65rem;color:var(--accent)}.day-label span{display:block;color:var(--muted);font-size:.9rem}.day ul{margin:8px 0 0;padding-left:1.1rem;color:var(--muted)}
.outcome-list{counter-reset:item}.outcome{display:flex;gap:18px}.outcome:before{counter-increment:item;content:counter(item,decimal-leading-zero);font-family:Georgia,serif;color:var(--accent);font-size:1.65rem;font-weight:700;line-height:1.2;min-width:44px}.outcome h3{margin-top:0}
.qr-box{display:grid;grid-template-columns:220px 1fr;gap:24px;align-items:center;border:1px solid var(--line);border-radius:var(--radius);padding:24px;background:#fff}.fakeqr{width:190px;height:190px;display:grid;grid-template-columns:repeat(9,1fr);grid-template-rows:repeat(9,1fr);gap:4px;padding:10px;border:1px solid var(--line);background:#fff}.fakeqr i{background:#111}.fakeqr i:nth-child(3n+1),.fakeqr i:nth-child(4n){background:#111}.fakeqr i:nth-child(5n+2){background:#fff}.fakeqr i:nth-child(1),.fakeqr i:nth-child(2),.fakeqr i:nth-child(3),.fakeqr i:nth-child(10),.fakeqr i:nth-child(12),.fakeqr i:nth-child(19),.fakeqr i:nth-child(20),.fakeqr i:nth-child(21),.fakeqr i:nth-child(7),.fakeqr i:nth-child(8),.fakeqr i:nth-child(9),.fakeqr i:nth-child(16),.fakeqr i:nth-child(18),.fakeqr i:nth-child(25),.fakeqr i:nth-child(26),.fakeqr i:nth-child(27),.fakeqr i:nth-child(55),.fakeqr i:nth-child(56),.fakeqr i:nth-child(57),.fakeqr i:nth-child(64),.fakeqr i:nth-child(66),.fakeqr i:nth-child(73),.fakeqr i:nth-child(74),.fakeqr i:nth-child(75){background:#111}.fakeqr i:nth-child(11),.fakeqr i:nth-child(17),.fakeqr i:nth-child(65){background:#fff}
.form-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:16px}.field label{display:block;font-weight:800;margin-bottom:6px}.field input,.field select,.field textarea{width:100%;border:1px solid var(--line-dark);border-radius:10px;padding:11px 12px;font:inherit;background:#fff}.field.full{grid-column:1/-1}.calc-result{border:1px solid var(--line);background:var(--soft);padding:16px;border-radius:14px;margin-top:16px;font-weight:800}.calc-result b{color:var(--accent)}
.footer{padding:42px 0;background:#111;color:#f5f5f5}.footer .container{display:flex;justify-content:space-between;gap:24px;align-items:start}.footer a{color:#fff}.footer small{display:block;color:#bfbfbf;margin-top:8px}.footer .brand-mark{border-color:#fff}
.print-note{font-size:.85rem;color:var(--muted)}
@media (max-width:920px){.hero-grid,.grid.two,.grid.three,.grid.four{grid-template-columns:1fr}.section-head{display:block}.spec-row{grid-template-columns:1fr}.qr-box{grid-template-columns:1fr}.footer .container{display:block}.day{grid-template-columns:1fr}.day-label{border-right:0;border-bottom:1px solid var(--line);padding:0 0 12px}.nav{height:auto;min-height:76px;align-items:flex-start;padding:14px 0}.menu{display:inline-flex}.navlinks{display:none;width:100%;padding-bottom:12px}.navlinks.open{display:flex}.brand{max-width:260px}}
@media (max-width:620px){.container{width:min(100% - 28px,var(--max))}h1{font-size:2.35rem}.hero{padding-top:42px}.form-grid{grid-template-columns:1fr}.nav{gap:12px}.brand small{display:none}}
@media print{.site-top,.actions,.footer,.btn{display:none!important}body{font-size:11pt}.section,.hero{padding:18px 0;border-bottom:1px solid #999}.card,.hero-card,.table-wrap{box-shadow:none}}