:root{--fg:#1b2a4a;--muted:#6b7280;--line:#e3e6ec;--gold:#c9a84c;--bg:#f6f8fb;--blue:#1f6fb2;--blue-deep:#123a5e;--card-shadow:0 6px 20px -8px rgba(27,42,74,.18)}
*{box-sizing:border-box}
body{margin:0;color:var(--fg);background:var(--bg);font:16px/1.75 system-ui,-apple-system,"Noto Sans TC","PingFang TC",sans-serif}
.inner{max-width:960px;margin:0 auto;padding:0 20px}
a{color:inherit}
img{max-width:100%;height:auto;display:block}

/* 區塊 */
section{padding:72px 0;scroll-margin-top:24px;position:relative}
section:nth-of-type(even){background:#fff}

/* Hero */
.hero{background:radial-gradient(ellipse at top right,#2a5d94,var(--blue-deep) 60%),linear-gradient(135deg,var(--blue-deep),#0d2440);color:#fff;padding:0;text-align:center;overflow:hidden;min-height:92vh;display:flex;align-items:center;justify-content:center}
.hero::before{content:"";position:absolute;inset:0;background-image:radial-gradient(circle at 15% 25%,rgba(255,255,255,.08) 0,transparent 40%),radial-gradient(circle at 85% 75%,rgba(255,255,255,.06) 0,transparent 45%);pointer-events:none}
.hero .drops{position:absolute;inset:0;pointer-events:none;opacity:.5}
.hero .drops svg{position:absolute;opacity:.35}
.hero-inner{position:relative;z-index:1}
.hero .kicker{display:inline-flex;align-items:center;gap:8px;background:rgba(255,255,255,.1);border:1px solid rgba(255,255,255,.25);border-radius:999px;padding:6px 16px;font-size:13px;letter-spacing:.05em;margin-bottom:22px;backdrop-filter:blur(4px)}
.hero h1{font-size:40px;margin:0 0 14px;font-weight:800;letter-spacing:.02em}
.hero p.sub{color:#cfe0f5;font-size:18px;margin:0 0 28px}
.hero .cta-row{display:flex;gap:14px;justify-content:center;flex-wrap:wrap}
.btn{display:inline-flex;align-items:center;gap:8px;padding:13px 28px;border-radius:999px;font-weight:700;font-size:15px;text-decoration:none;transition:transform .15s,box-shadow .15s}
.btn:hover{transform:translateY(-2px)}
.btn-primary{background:var(--gold);color:#2b2308;box-shadow:0 8px 24px -8px rgba(201,168,76,.6)}
.btn-ghost{background:transparent;color:#fff;border:1px solid rgba(255,255,255,.5)}
.hero .tag{display:inline-block;margin-top:24px;padding:8px 18px;border:1px solid rgba(255,255,255,.35);border-radius:999px;font-size:13px;color:#dce7f5}
.scroll-hint{position:absolute;bottom:26px;left:50%;transform:translateX(-50%);color:#cfe0f5;opacity:.7;font-size:12px;display:flex;flex-direction:column;align-items:center;gap:6px}
.scroll-hint svg{animation:bob 1.8s ease-in-out infinite}
@keyframes bob{0%,100%{transform:translateY(0)}50%{transform:translateY(6px)}}

h2.sec-title{font-size:28px;margin:0 0 8px;text-align:center;font-weight:800;color:var(--blue-deep)}
h2.sec-title .icon{color:var(--blue)}
p.sec-sub{color:var(--muted);text-align:center;margin:0 0 40px;font-size:15px}
.eyebrow{display:block;text-align:center;color:var(--blue);font-weight:700;font-size:13px;letter-spacing:.12em;margin-bottom:8px}

/* 服務卡片 */
.services{display:grid;grid-template-columns:repeat(auto-fit,minmax(210px,1fr));gap:22px}
.service-card{background:#fff;border:1px solid var(--line);border-radius:16px;padding:28px 24px;box-shadow:var(--card-shadow);transition:transform .2s,box-shadow .2s}
.service-card:hover{transform:translateY(-4px);box-shadow:0 14px 30px -10px rgba(27,42,74,.25)}
.service-card .ic{width:44px;height:44px;border-radius:12px;background:linear-gradient(135deg,var(--blue),var(--blue-deep));display:flex;align-items:center;justify-content:center;color:#fff;margin-bottom:16px}
.service-card h3{margin:0 0 8px;font-size:17px;color:var(--fg)}
.service-card p{margin:0;color:var(--muted);font-size:14px}

/* 案例 */
.case-group{margin-bottom:48px}
.case-group h3{font-size:19px;margin:0 0 4px;color:var(--blue-deep);display:flex;align-items:center;gap:8px}
.case-group .case-note{color:var(--muted);font-size:14px;margin:0 0 18px}
.gallery{display:grid;grid-template-columns:repeat(auto-fit,minmax(210px,1fr));gap:14px}
.gallery a{border-radius:12px;overflow:hidden;box-shadow:var(--card-shadow);display:block}
.gallery img{border-radius:12px;aspect-ratio:4/3;object-fit:cover;transition:transform .35s}
.gallery a:hover img{transform:scale(1.06)}

/* 聯絡 */
.contact{text-align:center}
.contact .card{display:inline-block;background:#fff;border:1px solid var(--line);border-radius:18px;padding:36px 44px;text-align:left;box-shadow:var(--card-shadow)}
.qr-row{display:flex;gap:28px;justify-content:center;margin-top:28px;padding-top:24px;border-top:1px solid var(--line)}
.qr-item{display:flex;flex-direction:column;align-items:center;gap:8px}
.qr-item img{border:1px solid var(--line);border-radius:10px;padding:6px;background:#fff}
.qr-item span{font-size:13px;color:var(--muted);font-weight:600}
.contact dl{margin:0;display:grid;grid-template-columns:auto auto;gap:8px 24px;font-size:16px}
.contact dt{color:var(--muted)}
.contact dd{margin:0;font-weight:700}
.contact dd a{color:var(--blue);text-decoration:none}
.contact .btn-primary{margin-top:22px}

footer.foot{border-top:1px solid var(--line);padding:22px 0;color:var(--muted);font-size:13px;text-align:center;background:#fff}

/* 圓點導覽 */
.dotnav{position:fixed;right:22px;top:50%;transform:translateY(-50%);z-index:20;display:flex;flex-direction:column;gap:14px}
.dotnav a{width:11px;height:11px;border-radius:50%;background:rgba(255,255,255,.4);border:1px solid rgba(255,255,255,.6);display:block;position:relative;transition:background .15s,border-color .15s}
.dotnav a:hover{background:var(--gold);border-color:var(--gold)}
.dotnav a.active{background:var(--blue);border-color:var(--blue)}
.dotnav a .label{position:absolute;right:20px;top:50%;transform:translateY(-50%);white-space:nowrap;font-size:12px;color:var(--fg);background:#fff;border:1px solid var(--line);border-radius:6px;padding:3px 8px;opacity:0;pointer-events:none;transition:opacity .15s;box-shadow:var(--card-shadow)}
.dotnav a:hover .label{opacity:1}
@media (max-width:640px){.dotnav{right:10px;gap:10px}.dotnav a .label{display:none}.hero h1{font-size:30px}}

/* 進場動畫 */
.reveal{opacity:0;transform:translateY(18px);transition:opacity .6s ease,transform .6s ease}
.reveal.in{opacity:1;transform:translateY(0)}