:root{
  --brand:#6D28D9; --brand-d:#4C1D95; --brand-l:#F3EEFF;
  --ink:#171528; --ink2:#5B5870; --ink3:#8E8B9E;
  --line:#E8E5F2; --bg:#FBFAFE; --white:#fff;
  --teal:#0F6E56; --teal-l:#E7F4EF;
  --amber:#B45309; --amber-l:#FEF3E2;
  --wrap:1080px;
}
*{box-sizing:border-box;-webkit-tap-highlight-color:transparent}
html{scroll-behavior:smooth}
body{
  margin:0;background:var(--bg);color:var(--ink);line-height:1.7;font-size:15.5px;
  font-family:-apple-system,BlinkMacSystemFont,"PingFang TC","Microsoft JhengHei","Noto Sans TC",sans-serif;
  -webkit-font-smoothing:antialiased;
}
a{color:inherit}
.wrap{max-width:var(--wrap);margin:0 auto;padding:0 22px}
.sr{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0)}

/* nav */
.nav{position:sticky;top:0;z-index:30;background:rgba(255,255,255,.92);backdrop-filter:saturate(180%) blur(8px);border-bottom:1px solid var(--line)}
.nav .wrap{display:flex;align-items:center;justify-content:space-between;height:64px;gap:18px}
.logo{display:flex;align-items:center;gap:9px;text-decoration:none;flex:0 0 auto}
.logo .m{width:30px;height:30px;border-radius:8px;background:var(--brand);color:#fff;display:flex;align-items:center;justify-content:center;font-weight:600;font-size:15px}
.logo b{font-size:15px;letter-spacing:-.2px}
.logo span{font-size:10.5px;color:var(--ink3);display:block;line-height:1.2;letter-spacing:.3px}
.links{display:flex;gap:24px;font-size:13.5px;color:var(--ink2)}
.links a{text-decoration:none;padding:4px 0;border-bottom:1.5px solid transparent}
.links a:hover{color:var(--ink);border-color:var(--brand)}
.links a.on{color:var(--ink);border-color:var(--brand)}
.navcta{display:flex;gap:9px;align-items:center;flex:0 0 auto}

/* buttons */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:6px;background:var(--brand);color:#fff;
  border:0;border-radius:9px;padding:11px 20px;font-size:14px;font-weight:500;text-decoration:none;cursor:pointer;
  font-family:inherit;white-space:nowrap;transition:background .16s}
.btn:hover{background:var(--brand-d)}
.btn.ghost{background:#fff;color:var(--brand-d);border:1px solid #DDD0FA}
.btn.ghost:hover{background:#FAF7FF}
.btn.sm{padding:8px 14px;font-size:13px}
.btn.lg{padding:14px 26px;font-size:15px}

/* hero */
.hero{padding:72px 0 60px;position:relative;overflow:hidden}
.hero:before{content:"";position:absolute;inset:0;background:
  radial-gradient(720px 320px at 78% -8%,#EDE6FF 0%,rgba(251,250,254,0) 62%),
  radial-gradient(520px 260px at 8% 4%,#EAF5F1 0%,rgba(251,250,254,0) 60%);pointer-events:none}
.hero .wrap{position:relative}
.kicker{display:inline-flex;align-items:center;gap:7px;font-size:12.5px;color:var(--brand-d);
  background:var(--brand-l);border:1px solid #E2D6FB;padding:5px 11px;border-radius:99px;margin-bottom:20px}
h1{font-size:42px;line-height:1.32;letter-spacing:-1px;margin:0 0 18px;font-weight:600;max-width:720px}
h1 em{font-style:normal;color:var(--brand)}
.lead{font-size:16.5px;color:var(--ink2);max-width:620px;margin:0 0 28px}
.cta{display:flex;gap:11px;flex-wrap:wrap;margin-bottom:26px}
.trust{display:flex;gap:22px;flex-wrap:wrap;font-size:12.5px;color:var(--ink3)}
.trust span{display:flex;align-items:center;gap:6px}
.trust i{width:13px;height:13px;border-radius:99px;background:var(--teal-l);display:inline-flex;
  align-items:center;justify-content:center;color:var(--teal);font-style:normal;font-size:9px;font-weight:600}

/* sections */
section.block{padding:64px 0}
.sec-head{max-width:660px;margin-bottom:34px}
.sec-head .k{font-size:12px;letter-spacing:1.4px;color:var(--brand);font-weight:500;margin-bottom:10px}
.sec-head h2{font-size:28px;line-height:1.4;margin:0 0 12px;letter-spacing:-.5px;font-weight:600}
.sec-head p{margin:0;color:var(--ink2);font-size:15px}

.grid{display:grid;gap:16px}
.g3{grid-template-columns:repeat(3,1fr)}
.g2{grid-template-columns:repeat(2,1fr)}
.g4{grid-template-columns:repeat(4,1fr)}

.card{background:#fff;border:1px solid var(--line);border-radius:16px;padding:24px 22px}
.card h3{font-size:16px;margin:0 0 8px;font-weight:600;letter-spacing:-.2px}
.card p{margin:0;font-size:13.5px;color:var(--ink2);line-height:1.75}
.card .ico{width:36px;height:36px;border-radius:10px;background:var(--brand-l);color:var(--brand-d);
  display:flex;align-items:center;justify-content:center;font-size:15px;font-weight:600;margin-bottom:14px}

.step{display:flex;gap:16px;align-items:flex-start}
.step .n{flex:0 0 auto;width:32px;height:32px;border-radius:99px;background:var(--brand);color:#fff;
  display:flex;align-items:center;justify-content:center;font-size:14px;font-weight:500}
.step h3{margin:2px 0 6px;font-size:15.5px;font-weight:600}
.step p{margin:0;font-size:13.5px;color:var(--ink2)}

.quote{background:#fff;border:1px solid var(--line);border-radius:16px;padding:26px 24px}
.quote p{margin:0 0 14px;font-size:15px;line-height:1.8}
.quote .who{font-size:12.5px;color:var(--ink3)}

/* pricing */
.tiers{display:grid;grid-template-columns:repeat(4,1fr);gap:14px;align-items:stretch}
.tier{background:#fff;border:1px solid var(--line);border-radius:16px;padding:22px 19px;display:flex;flex-direction:column}
.tier.hi{border-color:var(--brand);box-shadow:0 10px 28px rgba(109,40,217,.10);position:relative}
.tier .tn{font-size:13px;color:var(--ink3);margin-bottom:6px}
.tier .price{font-size:30px;font-weight:600;letter-spacing:-1px;line-height:1.2}
.tier .price small{font-size:13px;font-weight:400;color:var(--ink3);letter-spacing:0}
.tier .note{font-size:12px;color:var(--ink3);margin:6px 0 16px}
.tier ul{list-style:none;padding:0;margin:0 0 18px;font-size:13px;color:var(--ink2)}
.tier li{padding:6px 0 6px 20px;position:relative;border-bottom:1px dashed #F0EDF7}
.tier li:before{content:"";position:absolute;left:4px;top:14px;width:6px;height:6px;border-radius:99px;background:#CFC4F0}
.tier li:last-child{border-bottom:0}
.tier .btn{margin-top:auto}

table.cmp{width:100%;border-collapse:collapse;background:#fff;border:1px solid var(--line);border-radius:14px;overflow:hidden;font-size:13.5px}
table.cmp th,table.cmp td{padding:12px 14px;text-align:left;border-bottom:1px solid #F1EEF8}
table.cmp thead th{background:#FBF9FF;font-weight:500;font-size:13px}
table.cmp td.c,table.cmp th.c{text-align:center}
table.cmp tr:last-child td{border-bottom:0}
.yes{color:var(--teal);font-weight:500}

/* faq */
details{background:#fff;border:1px solid var(--line);border-radius:12px;padding:15px 18px;margin-bottom:10px}
details summary{cursor:pointer;list-style:none;font-size:14.5px;font-weight:500;display:flex;justify-content:space-between;gap:14px}
details summary::-webkit-details-marker{display:none}
details summary::after{content:"+";color:var(--brand);font-size:18px;line-height:1}
details[open] summary::after{content:"−"}
details p{margin:12px 0 0;font-size:13.5px;color:var(--ink2)}

/* cta band */
.band{background:linear-gradient(120deg,#4C1D95,#6D28D9 60%,#7C3AED);color:#fff;border-radius:20px;
  padding:44px 40px;display:flex;align-items:center;justify-content:space-between;gap:24px;flex-wrap:wrap}
.band h2{font-size:26px;margin:0 0 8px;letter-spacing:-.5px;font-weight:600}
.band p{margin:0;color:rgba(255,255,255,.82);font-size:14px}
.band .btn{background:#fff;color:var(--brand-d)}
.band .btn:hover{background:#F6F2FF}

footer{border-top:1px solid var(--line);padding:34px 0 44px;margin-top:20px;font-size:12.5px;color:var(--ink3)}
footer .cols{display:grid;grid-template-columns:2fr 1fr 1fr 1fr;gap:26px;margin-bottom:24px}
footer b{color:var(--ink);font-weight:500;display:block;margin-bottom:10px;font-size:13px}
footer a{display:block;text-decoration:none;padding:3px 0}
footer a:hover{color:var(--brand)}
footer .fine{border-top:1px solid var(--line);padding-top:18px;display:flex;justify-content:space-between;gap:14px;flex-wrap:wrap}

@media(max-width:900px){
  h1{font-size:34px}
  .g3,.g4{grid-template-columns:repeat(2,1fr)}
  .tiers{grid-template-columns:repeat(2,1fr)}
  footer .cols{grid-template-columns:1fr 1fr}
}
@media(max-width:640px){
  body{font-size:15px}
  .hero{padding:44px 0 40px}
  h1{font-size:27px;letter-spacing:-.5px}
  .lead{font-size:15px}
  .links{display:none}
  .g3,.g4,.g2{grid-template-columns:1fr}
  .tiers{grid-template-columns:1fr}
  section.block{padding:44px 0}
  .band{padding:30px 22px}
  .band h2{font-size:21px}
  footer .cols{grid-template-columns:1fr 1fr;gap:18px}
}

/* ---------- 視覺素材（AI 生成主視覺） ---------- */
.hero-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:52px;align-items:center}
.hero-copy{min-width:0}
.hero-art{position:relative;min-width:0}
.hero-art img{width:100%;height:auto;display:block;border-radius:20px;
  box-shadow:0 26px 64px rgba(60,22,120,.24), 0 2px 10px rgba(23,21,40,.10)}
.hero-art:after{content:"";position:absolute;inset:auto -6% -8% -6%;height:40%;
  background:radial-gradient(closest-side,rgba(109,40,217,.22),rgba(109,40,217,0));
  filter:blur(18px);z-index:-1;pointer-events:none}

.wide-art{margin:26px 0 30px;border-radius:18px;overflow:hidden;
  box-shadow:0 18px 44px rgba(60,22,120,.16)}
.wide-art img{width:100%;height:auto;display:block}

.proof-col{display:flex;flex-direction:column;gap:16px;min-width:0}
.proof-img{width:100%;height:auto;display:block;border-radius:18px;
  box-shadow:0 18px 44px rgba(60,22,120,.18)}

.page-art{margin:30px 0 0;border-radius:18px;overflow:hidden;box-shadow:0 20px 48px rgba(60,22,120,.18)}
.page-art img{width:100%;height:auto;display:block}

@media(max-width:860px){
  .hero-grid{grid-template-columns:1fr;gap:30px}
  .hero-art{max-width:540px;margin:0 auto;width:100%}
  .wide-art{margin:20px 0 26px}
}

@media(max-width:860px){
  .br-desk{display:none}
}

.page-art img{height:360px;object-fit:cover;object-position:center}
@media(max-width:640px){.page-art img{height:200px}}

/* 資安頁寬幅帶：保留主體，避免裁掉盾牌 */
.page-art img{height:430px;object-fit:cover;object-position:center 45%}
@media(max-width:900px){.page-art img{height:300px}}
@media(max-width:640px){.page-art img{height:210px}}

/* ---------- 手機導覽 ---------- */
.mnav{display:none;position:relative}
.mnav summary{list-style:none;cursor:pointer;font-size:13px;color:var(--ink2);
  padding:6px 11px;border:1px solid var(--line);border-radius:9px;background:#fff;user-select:none}
.mnav summary::-webkit-details-marker{display:none}
.mnav[open] summary{background:var(--brand-l);color:var(--brand-d);border-color:#E2D6FB}
.mnav .mnav-body{position:absolute;right:0;top:calc(100% + 9px);background:#fff;border:1px solid var(--line);
  border-radius:12px;box-shadow:0 14px 34px rgba(23,21,40,.14);padding:7px;min-width:186px;z-index:40;
  display:flex;flex-direction:column;gap:1px}
.mnav .mnav-body a{padding:9px 12px;border-radius:8px;font-size:13.5px;color:var(--ink2);text-decoration:none;white-space:nowrap}
.mnav .mnav-body a:hover{background:#FAF8FE;color:var(--ink)}
.mnav .mnav-body .sep{height:1px;background:var(--line);margin:5px 4px}

@media(max-width:640px){
  .mnav{display:block}
  .nav .wrap{gap:10px}
  .navcta .btn.ghost{display:none}
  .navcta .btn{padding:7px 12px;font-size:12.5px}
  .navcta > a[href="/admin/"]{display:none}
  .logo > span:not(.m){display:block}
  .logo > span:not(.m) > span{display:none}
  .logo b{font-size:14.5px}
}

/* 清掉 details 預設箭頭與焦點框 */
.mnav summary::marker{content:''}
.mnav summary::-webkit-details-marker{display:none}
.mnav summary:focus{outline:none}
.mnav{align-self:center;flex:0 0 auto}
.mnav summary{-webkit-tap-highlight-color:transparent}
.mnav{align-self:center;flex:0 0 auto}
.mnav summary{-webkit-tap-highlight-color:transparent}
.mnav summary{display:inline-flex;align-items:center;gap:6px}
.mnav summary:after{content:"";width:6px;height:6px;border-right:1.6px solid currentColor;
  border-bottom:1.6px solid currentColor;transform:rotate(45deg) translateY(-1px);transition:transform .15s}
.mnav[open] summary:after{transform:rotate(-135deg) translateY(-1px)}

/* 覆蓋全域 FAQ 的 details 樣式（避免套到手機選單） */
details.mnav{border:0;padding:0;margin:0;background:transparent;border-radius:0}
details.mnav > summary{font-size:13px;font-weight:500}

/* 覆蓋全域 FAQ 的 details 樣式（避免套到手機選單） */
details.mnav{border:0;padding:0;margin:0;background:transparent;border-radius:0}
details.mnav > summary{font-size:13px;font-weight:500}

/* 場景頁：主體偏下，微調裁切焦點 */
.page-art img{object-position:center 52%}

/* ---------- 品牌標記 ---------- */
.logo .m{width:30px;height:30px;border-radius:8px;display:block;flex:0 0 auto}

/* ---------- 存證四件清單 ---------- */
.proof-list{display:flex;flex-direction:column}
.pitem{display:flex;gap:14px;padding:13px 0;border-bottom:1px solid var(--line)}
.pitem:first-child{padding-top:0}
.pitem:last-child{border-bottom:0;padding-bottom:0}
.pnum{flex:0 0 auto;font-size:10.5px;font-weight:700;letter-spacing:.6px;color:var(--brand);
  background:var(--brand-l);border-radius:6px;padding:3px 6px;height:fit-content;margin-top:2px}
.pitem b{display:block;font-size:14.5px;margin-bottom:3px;letter-spacing:-.1px}
.pitem p{margin:0;font-size:13px;color:var(--ink2);line-height:1.65}

/* 存證區塊：上緣對齊，圖片固定高避免拉長整段 */
.grid.proof-grid{align-items:start;gap:44px}
.proof-img{width:100%;height:400px;object-fit:cover;object-position:center 45%}
@media(max-width:860px){
  .grid.proof-grid{gap:22px}
  .proof-img{height:auto}
}