/* 企鵝工作室 · Penguin Studio */
:root{
  --ink:#0a0f1c;        /* 深海冰原黑藍 */
  --ink-2:#101830;
  --frost:#e8eef7;      /* 冰白 */
  --frost-dim:#9aabc4;  /* 次要文字 */
  --ice:#4ea3ff;        /* 冰原藍 */
  --ice-deep:#2a6fd6;
  --beak:#ff8a3d;       /* 企鵝喙暖橘 */
  --line:rgba(154,171,196,.16);
  --radius:14px;
  --maxw:1080px;
}

*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{
  background:var(--ink);
  color:var(--frost);
  font-family:"Inter","Noto Sans TC",system-ui,-apple-system,"PingFang TC","Microsoft JhengHei",sans-serif;
  line-height:1.7;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
a{color:inherit;text-decoration:none}
img{max-width:100%;display:block}

/* 背景極光氛圍 */
body::before{
  content:"";position:fixed;inset:0;z-index:-2;
  background:
    radial-gradient(820px 520px at 78% -8%, rgba(78,163,255,.16), transparent 60%),
    radial-gradient(680px 480px at 8% 108%, rgba(255,138,61,.10), transparent 60%),
    linear-gradient(180deg,#0a0f1c,#070b15);
}

.wrap{max-width:var(--maxw);margin:0 auto;padding:0 24px}

/* NAV */
.nav{
  position:sticky;top:0;z-index:50;
  backdrop-filter:blur(12px);
  background:rgba(10,15,28,.72);
  border-bottom:1px solid var(--line);
}
.nav .wrap{display:flex;align-items:center;justify-content:space-between;height:66px}
.brand{display:flex;align-items:center;gap:10px;font-weight:700;letter-spacing:.02em}
.brand .dot{
  width:11px;height:11px;border-radius:50%;
  background:var(--beak);
  box-shadow:0 0 0 4px rgba(255,138,61,.18);
}
.brand small{display:block;font-size:11px;color:var(--frost-dim);font-weight:500;letter-spacing:.18em;text-transform:uppercase}
.navlinks{display:flex;gap:6px;align-items:center}
.navlinks a{
  padding:8px 14px;border-radius:999px;font-size:14px;color:var(--frost-dim);
  transition:color .2s,background .2s;
}
.navlinks a:hover{color:var(--frost)}
.navlinks a.active{color:var(--ink);background:var(--frost);font-weight:600}

/* 通用區塊 */
.section{padding:88px 0}
.eyebrow{
  font-size:12px;letter-spacing:.32em;text-transform:uppercase;
  color:var(--ice);font-weight:600;margin-bottom:14px;
}
h1,h2,h3{line-height:1.18;letter-spacing:-.01em}
h2.title{font-size:clamp(28px,4vw,42px);font-weight:800;margin-bottom:16px}
.lead{color:var(--frost-dim);font-size:17px;max-width:60ch}

/* 按鈕 */
.btn{
  display:inline-flex;align-items:center;gap:9px;
  padding:13px 22px;border-radius:999px;font-weight:600;font-size:15px;
  transition:transform .18s,box-shadow .18s,background .18s;
}
.btn-primary{background:var(--beak);color:#1a0e02;box-shadow:0 10px 30px -10px rgba(255,138,61,.6)}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 16px 38px -10px rgba(255,138,61,.7)}
.btn-ghost{border:1px solid var(--line);color:var(--frost)}
.btn-ghost:hover{border-color:var(--ice);color:var(--ice)}

/* 卡片 */
.card{
  background:linear-gradient(180deg,rgba(255,255,255,.04),rgba(255,255,255,.015));
  border:1px solid var(--line);border-radius:var(--radius);padding:28px;
}

/* FOOTER */
.footer{border-top:1px solid var(--line);padding:36px 0;color:var(--frost-dim);font-size:14px}
.footer .wrap{display:flex;justify-content:space-between;flex-wrap:wrap;gap:14px}
.footer a:hover{color:var(--ice)}

/* 進場動畫 */
.reveal{opacity:0;transform:translateY(18px);transition:opacity .7s ease,transform .7s ease}
.reveal.in{opacity:1;transform:none}

@media (max-width:680px){
  .section{padding:60px 0}
  .navlinks a{padding:7px 10px;font-size:13px}
  .brand small{display:none}
}
@media (prefers-reduced-motion:reduce){
  *{animation:none!important;transition:none!important}
  .reveal{opacity:1;transform:none}
  html{scroll-behavior:auto}
}

/* ===== 首頁 HERO ===== */
.hero{position:relative;padding:96px 0 70px;overflow:hidden}
.hero-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:48px;align-items:center}
.hero h1{font-size:clamp(34px,6vw,60px);font-weight:800}
.hero h1 .accent{color:var(--ice)}
.hero .sub{margin-top:20px;font-size:18px;color:var(--frost-dim);max-width:46ch}
.hero .cta-row{margin-top:34px;display:flex;gap:14px;flex-wrap:wrap}
.hero .tags{margin-top:30px;display:flex;gap:10px;flex-wrap:wrap}
.tag{font-size:13px;color:var(--frost-dim);border:1px solid var(--line);border-radius:999px;padding:6px 13px}
.tag b{color:var(--beak);font-weight:700}

/* 雷達 signature */
.radar{position:relative;aspect-ratio:1;max-width:380px;margin:0 auto;width:100%}
.radar .ring{position:absolute;inset:0;border-radius:50%;border:1px solid var(--line)}
.radar .ring.r2{inset:16%}
.radar .ring.r3{inset:32%}
.radar .ring.r4{inset:48%}
.radar .sweep{
  position:absolute;inset:0;border-radius:50%;
  background:conic-gradient(from 0deg,rgba(78,163,255,.0) 0deg,rgba(78,163,255,.0) 300deg,rgba(78,163,255,.45) 360deg);
  animation:spin 4s linear infinite;
}
.radar .core{
  position:absolute;top:50%;left:50%;transform:translate(-50%,-50%);
  width:54px;height:54px;border-radius:50%;
  background:radial-gradient(circle at 50% 40%,var(--ink-2),var(--ink));
  border:1px solid var(--ice);display:grid;place-items:center;font-size:24px;
  box-shadow:0 0 30px -6px rgba(78,163,255,.5);
}
.radar .blip{position:absolute;width:9px;height:9px;border-radius:50%;background:var(--beak);box-shadow:0 0 12px var(--beak)}
.radar .b1{top:24%;left:66%;animation:pulse 2.6s ease-in-out infinite}
.radar .b2{top:62%;left:30%;animation:pulse 2.6s ease-in-out .9s infinite}
.radar .b3{top:70%;left:64%;animation:pulse 2.6s ease-in-out 1.7s infinite}
@keyframes spin{to{transform:rotate(360deg)}}
@keyframes pulse{0%,100%{opacity:.25;transform:scale(.8)}50%{opacity:1;transform:scale(1.25)}}

@media (max-width:820px){
  .hero-grid{grid-template-columns:1fr;gap:36px}
  .radar{max-width:300px;order:-1}
}

/* ===== 功能頁 ===== */
.feature-hero{padding:70px 0 10px}
.feat-grid{display:grid;grid-template-columns:1.1fr .9fr;gap:32px;align-items:stretch;margin-top:8px}
.feat-list{display:grid;gap:14px;margin-top:26px}
.feat-item{display:flex;gap:14px;align-items:flex-start}
.feat-item .ic{
  flex:0 0 auto;width:38px;height:38px;border-radius:10px;display:grid;place-items:center;
  background:rgba(78,163,255,.12);border:1px solid rgba(78,163,255,.3);font-size:18px;
}
.feat-item h4{font-size:16px;margin-bottom:2px}
.feat-item p{color:var(--frost-dim);font-size:14px;margin:0}
.spec{display:grid;gap:0;margin-top:10px}
.spec .row{display:flex;justify-content:space-between;padding:14px 0;border-bottom:1px solid var(--line);font-size:15px}
.spec .row:last-child{border-bottom:0}
.spec .row span:first-child{color:var(--frost-dim)}
.spec .row span:last-child{font-weight:600}

@media (max-width:820px){.feat-grid{grid-template-columns:1fr}}

/* ===== 方案頁 ===== */
.price-wrap{display:grid;place-items:center;margin-top:18px}
.plan{
  width:100%;max-width:420px;position:relative;overflow:hidden;
  background:linear-gradient(180deg,rgba(78,163,255,.08),rgba(255,255,255,.02));
  border:1px solid rgba(78,163,255,.32);border-radius:20px;padding:34px;
}
.plan .ribbon{
  position:absolute;top:18px;right:-34px;transform:rotate(38deg);
  background:var(--beak);color:#1a0e02;font-size:12px;font-weight:700;
  padding:5px 44px;letter-spacing:.05em;
}
.plan .pname{font-size:13px;letter-spacing:.2em;text-transform:uppercase;color:var(--ice);font-weight:600}
.plan h3{font-size:26px;margin:6px 0 4px}
.plan .pdesc{color:var(--frost-dim);font-size:14px;margin-bottom:22px}
.plan .price{display:flex;align-items:baseline;gap:8px;margin-bottom:4px}
.plan .price .num{font-size:46px;font-weight:800;letter-spacing:-.02em}
.plan .price .unit{color:var(--frost-dim);font-size:15px}
.plan .cycle{font-size:13px;color:var(--beak);margin-bottom:24px;font-weight:600}
.plan ul{list-style:none;display:grid;gap:12px;margin-bottom:28px}
.plan li{display:flex;gap:11px;align-items:flex-start;font-size:15px;color:var(--frost)}
.plan li .ck{color:var(--ice);flex:0 0 auto;margin-top:2px}
.note{text-align:center;color:var(--frost-dim);font-size:13px;margin-top:20px}

/* ===== 聯絡頁 ===== */
.contact-grid{display:grid;grid-template-columns:1fr 1fr;gap:18px;margin-top:30px}
.contact-card{
  display:flex;gap:16px;align-items:center;
  background:linear-gradient(180deg,rgba(255,255,255,.04),rgba(255,255,255,.015));
  border:1px solid var(--line);border-radius:var(--radius);padding:24px;
  transition:border-color .2s,transform .2s;
}
.contact-card:hover{border-color:var(--ice);transform:translateY(-3px)}
.contact-card .ic{
  width:48px;height:48px;border-radius:12px;display:grid;place-items:center;font-size:22px;
  background:rgba(78,163,255,.12);border:1px solid rgba(78,163,255,.3);flex:0 0 auto;
}
.contact-card .lbl{font-size:12px;letter-spacing:.18em;text-transform:uppercase;color:var(--frost-dim)}
.contact-card .val{font-size:17px;font-weight:600;margin-top:2px;word-break:break-all}
@media (max-width:680px){.contact-grid{grid-template-columns:1fr}}