/* ===== 基礎與變數 ===== */
:root{
  --bg:#0b1020;
  --bg-soft:#0f1730;
  --panel:rgba(255,255,255,.045);
  --line:rgba(255,255,255,.10);
  --text:#e9edf7;
  --muted:#a2adc4;
  --brand:#3b82f6;
  --brand-2:#8b5cf6;
  --warn:#f5c26b;
  --radius:18px;
  --wrap:1120px;
}

*,*::before,*::after{box-sizing:border-box;}

html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}

body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans CJK SC","Source Han Sans SC","WenQuanYi Micro Hei",sans-serif;
  font-size:16px;
  line-height:1.85;
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}

img,svg{max-width:100%;}
a{color:#9ec1ff;}
a:hover{color:#c9dbff;}

.wrap{width:100%;max-width:var(--wrap);margin:0 auto;padding:0 24px;}

.skip-link{
  position:absolute;left:-9999px;top:0;z-index:100;
  background:#fff;color:#111;padding:10px 18px;border-radius:0 0 8px 0;
}
.skip-link:focus{left:0;}

/* 待補充欄位標記 */
.ph{
  color:var(--warn);
  border-bottom:1px dashed rgba(245,194,107,.55);
  padding-bottom:1px;
  font-style:normal;
}
.hint{display:block;font-size:.8rem;color:var(--muted);margin-top:2px;}

/* ===== 頁首 ===== */
.site-header{
  position:sticky;top:0;z-index:50;
  background:rgba(11,16,32,.86);
  -webkit-backdrop-filter:blur(14px);
  backdrop-filter:blur(14px);
  border-bottom:1px solid var(--line);
}
.header-inner{
  display:flex;align-items:center;justify-content:space-between;
  gap:16px;min-height:72px;
}
.brand{
  display:flex;align-items:center;gap:12px;
  text-decoration:none;color:inherit;flex-shrink:0;
}
.brand-mark{display:block;border-radius:9px;}
.brand-text strong{
  display:block;font-size:1.02rem;font-weight:700;letter-spacing:.04em;line-height:1.3;
}
.brand-text small{
  display:block;font-size:.68rem;letter-spacing:.14em;color:var(--muted);line-height:1.4;
}

.site-nav{display:flex;align-items:center;gap:4px;}
.site-nav a{
  color:var(--muted);text-decoration:none;
  font-size:.93rem;padding:9px 15px;border-radius:999px;
  transition:color .18s ease,background-color .18s ease;
}
.site-nav a:hover{color:#fff;background:rgba(255,255,255,.07);}
.site-nav .nav-cta{
  margin-left:8px;color:#fff;font-weight:600;
  background:linear-gradient(135deg,var(--brand),var(--brand-2));
}
.site-nav .nav-cta:hover{
  background:linear-gradient(135deg,#4f90f7,#9a70f8);
  color:#fff;
}

.nav-toggle{
  display:none;align-items:center;justify-content:center;
  width:42px;height:42px;border-radius:12px;
  background:rgba(255,255,255,.06);border:1px solid var(--line);
  color:var(--text);cursor:pointer;padding:0;
}

/* ===== Hero ===== */
.hero{
  position:relative;overflow:hidden;
  padding:104px 0 92px;
  border-bottom:1px solid var(--line);
}
.hero::before{
  content:"";
  position:absolute;inset:-30% -10% auto -10%;height:680px;
  background:
    radial-gradient(closest-side,rgba(59,130,246,.30),transparent 72%) 18% 22%/580px 580px no-repeat,
    radial-gradient(closest-side,rgba(139,92,246,.26),transparent 72%) 82% 12%/540px 540px no-repeat;
  pointer-events:none;
}
.hero-inner{position:relative;z-index:1;}

.eyebrow{
  margin:0 0 14px;
  font-size:.78rem;letter-spacing:.18em;text-transform:uppercase;
  color:#8fb2ff;font-weight:600;
}

.hero h1{
  margin:0 0 22px;
  font-size:clamp(2rem,5vw,3.35rem);
  line-height:1.28;
  font-weight:800;
  letter-spacing:.01em;
  background:linear-gradient(100deg,#ffffff 20%,#a8c4ff 60%,#c9b6ff 100%);
  -webkit-background-clip:text;
  background-clip:text;
  color:transparent;
}

.hero .lead{
  margin:0 0 34px;max-width:640px;
  font-size:1.05rem;color:var(--muted);
}

.actions{display:flex;flex-wrap:wrap;gap:14px;}
.btn{
  display:inline-flex;align-items:center;justify-content:center;
  padding:13px 28px;border-radius:999px;
  font-size:.95rem;font-weight:600;text-decoration:none;
  transition:transform .16s ease,background-color .18s ease,box-shadow .18s ease;
}
.btn:hover{transform:translateY(-1px);}
.btn-primary{
  color:#fff;background:linear-gradient(135deg,var(--brand),var(--brand-2));
  box-shadow:0 8px 26px rgba(59,130,246,.28);
}
.btn-primary:hover{color:#fff;box-shadow:0 10px 30px rgba(99,102,241,.36);}
.btn-ghost{
  color:var(--text);border:1px solid rgba(255,255,255,.22);
  background:rgba(255,255,255,.04);
}
.btn-ghost:hover{color:#fff;background:rgba(255,255,255,.09);}

/* ===== 區段 ===== */
.section{padding:84px 0;}
.section-alt{background:var(--bg-soft);border-top:1px solid var(--line);border-bottom:1px solid var(--line);}

.section-head{margin-bottom:44px;max-width:760px;}
.section-head h2{
  margin:0 0 12px;font-size:clamp(1.5rem,3vw,2.05rem);
  font-weight:700;line-height:1.35;letter-spacing:.01em;
}
.section-desc{margin:0;color:var(--muted);font-size:.98rem;}

/* ===== 卡片 ===== */
.cards{
  display:grid;gap:22px;
  grid-template-columns:repeat(auto-fit,minmax(300px,1fr));
}
.card{
  background:linear-gradient(180deg,rgba(255,255,255,.055),rgba(255,255,255,.018));
  border:1px solid var(--line);
  border-radius:var(--radius);
  padding:30px 28px;
}
.card h3{
  margin:0 0 12px;font-size:1.12rem;font-weight:700;letter-spacing:.01em;
}
.card p{margin:0;color:var(--muted);font-size:.95rem;}

.icon-box{
  width:46px;height:46px;border-radius:13px;
  display:grid;place-items:center;margin-bottom:18px;
  color:#c7d8ff;
  background:linear-gradient(135deg,rgba(59,130,246,.30),rgba(139,92,246,.30));
  border:1px solid rgba(255,255,255,.12);
}

/* ===== 關於我們 ===== */
.about-grid{
  display:grid;gap:36px;
  grid-template-columns:minmax(0,1.15fr) minmax(0,1fr);
  align-items:start;
}
.about-text p{margin:0 0 18px;color:var(--muted);font-size:.98rem;}
.about-text p:last-child{margin-bottom:0;}
.about-text strong{color:var(--text);font-weight:600;}

.facts{
  margin:0;padding:6px 0;
  background:rgba(255,255,255,.035);
  border:1px solid var(--line);border-radius:var(--radius);
  overflow:hidden;
}
.facts > div{
  display:flex;gap:16px;
  padding:14px 24px;
  border-bottom:1px solid var(--line);
}
.facts > div:last-child{border-bottom:none;}
.facts dt{
  flex:0 0 92px;color:var(--muted);font-size:.86rem;margin:0;
}
.facts dd{margin:0;font-size:.92rem;line-height:1.7;}

/* ===== 業務範圍 ===== */
.service-block{margin-bottom:44px;}
.service-block:last-child{margin-bottom:0;}
.service-block h3{
  display:flex;align-items:center;gap:14px;
  margin:0 0 20px;font-size:1.15rem;font-weight:700;
}
.service-block .num{
  display:inline-flex;align-items:center;justify-content:center;
  width:36px;height:36px;border-radius:11px;flex:0 0 36px;
  font-size:.85rem;font-weight:700;letter-spacing:.04em;
  color:#cddcff;
  background:linear-gradient(135deg,rgba(59,130,246,.32),rgba(139,92,246,.32));
  border:1px solid rgba(255,255,255,.12);
}
.service-desc{margin:-6px 0 24px;color:var(--muted);font-size:.96rem;max-width:760px;}

.feature-list{
  list-style:none;margin:0;padding:0;
  display:grid;gap:16px;
  grid-template-columns:repeat(auto-fit,minmax(280px,1fr));
}
.feature-list li{
  background:rgba(255,255,255,.035);
  border:1px solid var(--line);
  border-radius:14px;
  padding:20px 22px;
}
.feature-list strong{
  display:block;margin-bottom:6px;font-size:.98rem;font-weight:600;color:#dbe6ff;
}
.feature-list span{display:block;color:var(--muted);font-size:.92rem;}

/* ===== 聯絡 ===== */
.contact-grid{
  display:grid;gap:20px;
  grid-template-columns:repeat(auto-fit,minmax(270px,1fr));
}
.contact-card{
  background:linear-gradient(180deg,rgba(255,255,255,.055),rgba(255,255,255,.018));
  border:1px solid var(--line);border-radius:var(--radius);
  padding:26px 24px;
}
.contact-card h3{
  margin:0 0 10px;font-size:1rem;font-weight:600;letter-spacing:.02em;
}
.contact-card p{margin:0 0 6px;font-size:.94rem;color:var(--muted);}
.contact-card p:last-child{margin-bottom:0;}
.contact-card .en{
  font-size:.78rem;letter-spacing:.02em;color:#7f8ba4;line-height:1.6;margin-top:6px;
}

.notice{
  margin-top:28px;padding:20px 24px;
  border:1px solid rgba(59,130,246,.28);
  border-radius:14px;
  background:rgba(59,130,246,.08);
}
.notice p{margin:0;font-size:.9rem;color:#c3cee4;line-height:1.8;}
.notice strong{color:#dbe6ff;}

/* ===== 內頁（隱私政策 / 用戶協議） ===== */
.page{padding:72px 0 90px;}
.page-inner{max-width:860px;}
.page-title{
  margin:0 0 14px;font-size:clamp(1.7rem,3.6vw,2.3rem);
  font-weight:700;line-height:1.35;
}
.page-meta{
  margin:0 0 40px;padding-bottom:22px;
  border-bottom:1px solid var(--line);
  font-size:.86rem;color:var(--muted);
}

.prose h2{
  margin:38px 0 14px;font-size:1.1rem;font-weight:700;
  color:#dce6ff;line-height:1.5;
}
.prose h2:first-of-type{margin-top:0;}
.prose p{margin:0 0 14px;color:var(--muted);font-size:.96rem;}
.prose ul{margin:0 0 18px;padding-left:22px;color:var(--muted);font-size:.96rem;}
.prose li{margin-bottom:8px;}
.prose ul.plain{list-style:none;padding-left:0;}
.prose ul.plain li{
  padding:10px 16px;margin-bottom:8px;
  background:rgba(255,255,255,.035);
  border:1px solid var(--line);border-radius:10px;
}
.prose strong{color:var(--text);font-weight:600;}

.back-link{margin-top:48px;padding-top:24px;border-top:1px solid var(--line);}
.back-link a{text-decoration:none;font-size:.92rem;color:#8fb2ff;}

/* ===== 頁尾 ===== */
.site-footer{
  border-top:1px solid var(--line);
  background:rgba(255,255,255,.02);
  padding:46px 0 40px;
}
.footer-inner{
  display:grid;gap:26px;
  grid-template-columns:minmax(0,1.2fr) minmax(0,1fr) minmax(0,1.1fr);
  align-items:start;
}
.footer-brand strong{display:block;font-size:1rem;font-weight:700;letter-spacing:.02em;}
.footer-brand span{
  display:block;font-size:.72rem;letter-spacing:.13em;
  color:var(--muted);margin-top:4px;
}
.footer-note{margin:12px 0 0;font-size:.82rem;color:#7f8ba4;}

.footer-links{display:flex;flex-wrap:wrap;gap:8px 20px;}
.footer-links a{
  font-size:.88rem;color:var(--muted);text-decoration:none;
  padding:2px 0;transition:color .16s ease;
}
.footer-links a:hover{color:#fff;}

.footer-copy p{margin:0 0 4px;font-size:.82rem;color:#7f8ba4;line-height:1.7;}
.footer-copy p:last-child{margin-bottom:0;}

/* ===== 響應式 ===== */
@media (max-width:960px){
  .about-grid{grid-template-columns:1fr;}
  .footer-inner{grid-template-columns:1fr;}
}

@media (max-width:860px){
  .nav-toggle{display:inline-flex;}
  .site-nav{
    display:none;
    position:absolute;left:0;right:0;top:100%;
    flex-direction:column;align-items:stretch;gap:2px;
    padding:12px 24px 20px;
    background:rgba(11,16,32,.985);
    border-bottom:1px solid var(--line);
  }
  .site-nav.is-open{display:flex;}
  .site-nav a{padding:12px 14px;border-radius:10px;font-size:.95rem;}
  .site-nav .nav-cta{margin-left:0;margin-top:8px;text-align:center;justify-content:center;}
  .header-inner{position:relative;}
}

@media (max-width:640px){
  body{font-size:15.5px;line-height:1.8;}
  .wrap{padding:0 18px;}
  .hero{padding:72px 0 64px;}
  .section{padding:62px 0;}
  .page{padding:52px 0 68px;}
  .card,.contact-card{padding:24px 20px;}
  .facts > div{flex-direction:column;gap:2px;padding:13px 20px;}
  .facts dt{flex:none;font-size:.8rem;}
  .actions .btn{width:100%;}
}

@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto;}
  *{transition:none !important;}
}