/* 名片夾 CardVault 官網共用樣式。版型沿用 Closet（wardrobe-site），配色換成 App icon 的深藍，並支援深色模式。 */
:root{
  --bg:#ffffff;
  --bg-soft:#f4f6fb;
  --bg-soft-2:#e9edf6;
  --ink:#14182a;
  --ink-2:#474e66;
  --muted:#7c8299;
  --line:#e5e8f1;
  --line-strong:#d3d8e6;
  /* app palette — App icon 深藍 */
  --accent:#3557a8;
  --accent-deep:#24408a;
  --accent-tint:#e8eefb;
  --accent-tint-line:#d3def5;
  --card:#ffffff;
  --on-ink:#ffffff;
  --header-bg:rgba(255,255,255,.85);
  --scrim:rgba(14,20,40,.24);
  /* 深色收尾帶（隱私區塊）：兩種模式都用 App icon 的深藍 */
  --deep:#16224a;
  --deep-text:#eef2fb;
  --deep-muted:#aebbe0;
  --deep-accent:#8fb3f0;
  --radius:18px;
  --shadow-sm:0 2px 8px -5px rgba(20,24,42,.16);
  --shadow-md:0 12px 32px -22px rgba(20,24,42,.32);
  --shadow-card:0 1px 2px rgba(20,24,42,.05), 0 10px 30px -18px rgba(20,24,42,.20);
  --phone-shadow:drop-shadow(0 22px 46px rgba(20,30,70,.30));
  --font-body:'Inter',-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang TC","Noto Sans TC","Hiragino Sans",system-ui,sans-serif;
  --maxw:1120px;
  color-scheme:light;
}
@media (prefers-color-scheme:dark){
  :root{
    --bg:#0b1020;
    --bg-soft:#111830;
    --bg-soft-2:#18213b;
    --ink:#eef1fa;
    --ink-2:#b7bfd6;
    --muted:#8a92ad;
    --line:#1f2843;
    --line-strong:#2e3958;
    --accent:#7fa6e8;
    --accent-deep:#a9c4f2;
    --accent-tint:#16224a;
    --accent-tint-line:#25356a;
    --card:#111830;
    --on-ink:#0b1020;
    --header-bg:rgba(11,16,32,.82);
    --scrim:rgba(0,0,0,.5);
    --deep:#16224a;
    --deep-text:#eef2fb;
    --deep-muted:#a3b1d8;
    --deep-accent:#8fb3f0;
    --shadow-sm:0 2px 8px -5px rgba(0,0,0,.5);
    --shadow-md:0 16px 40px -20px rgba(0,0,0,.7);
    --shadow-card:0 1px 2px rgba(0,0,0,.25), 0 10px 30px -18px rgba(0,0,0,.6);
    --phone-shadow:drop-shadow(0 22px 46px rgba(0,0,0,.55));
    color-scheme:dark;
  }
}
*{box-sizing:border-box;}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%;}
body{
  margin:0;
  font-family:var(--font-body);
  color:var(--ink);
  background:var(--bg);
  font-size:17px;
  line-height:1.65;
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
  overflow-x:hidden;
}
a{color:inherit;text-decoration:none;}
img{max-width:100%;display:block;}
.wrap{max-width:var(--maxw);margin:0 auto;padding:0 24px;}

/* ---------- Header ---------- */
header.site{
  position:sticky;top:0;z-index:50;
  background:var(--header-bg);
  backdrop-filter:saturate(1.3) blur(14px);
  -webkit-backdrop-filter:saturate(1.3) blur(14px);
  border-bottom:1px solid transparent;
  transition:border-color .2s ease;
}
header.site.scrolled,header.site.ruled{border-color:var(--line);}
.nav{display:flex;align-items:center;justify-content:space-between;height:74px;gap:12px;}
.logo{font-weight:800;font-size:21px;letter-spacing:-.02em;color:var(--ink);line-height:1;display:inline-flex;align-items:center;gap:10px;min-width:0;white-space:nowrap;}
.logo img{width:30px;height:30px;border-radius:8px;flex:none;border:1px solid var(--line);}
.nav-right{display:flex;align-items:center;gap:10px;flex:none;}

.btn{
  display:inline-flex;align-items:center;gap:9px;
  font-family:var(--font-body);font-weight:700;font-size:15px;
  border-radius:999px;padding:11px 20px;cursor:pointer;border:1px solid transparent;
  transition:transform .12s ease, background .2s ease, color .2s ease, border-color .2s ease, opacity .2s ease;
  white-space:nowrap;line-height:1;
}
.btn:active{transform:translateY(1px);}
.btn-dark{background:var(--ink);color:var(--on-ink);}
.btn-dark:hover{opacity:.88;}
.btn-ghost{background:transparent;color:var(--ink);border-color:var(--line-strong);}
.btn-ghost:hover{background:var(--bg-soft);border-color:var(--ink-2);}
.btn svg{width:16px;height:16px;flex:none;}
.btn .apple{width:15px;height:18px;margin-top:-2px;}

/* ---------- App Store badge（依 Apple 規範固定黑底） ---------- */
.appstore{
  display:inline-flex;align-items:center;gap:11px;background:#000;color:#fff;
  border-radius:11px;padding:9px 16px 9px 14px;cursor:pointer;transition:transform .12s ease,opacity .2s ease;
  border:1px solid rgba(255,255,255,.22);
}
.appstore:hover{opacity:.88;}
.appstore:active{transform:translateY(1px);}
.appstore .apple{width:26px;height:30px;flex:none;}
.appstore .lbl{display:flex;flex-direction:column;line-height:1.12;text-align:left;}
.appstore .lbl small{font-size:11.5px;font-weight:400;letter-spacing:.01em;}
.appstore .lbl b{font-size:20px;font-weight:600;letter-spacing:.01em;margin-top:1px;}

/* ---------- Menu overlay ---------- */
.menu-scrim{position:fixed;inset:0;z-index:60;background:var(--scrim);opacity:0;pointer-events:none;transition:opacity .2s ease;}
.menu-scrim.open{opacity:1;pointer-events:auto;}
.menu-panel{
  position:fixed;top:14px;right:14px;z-index:61;width:min(360px,calc(100vw - 28px));
  background:var(--card);border:1px solid var(--line-strong);border-radius:18px;
  padding:20px 20px 16px;box-shadow:var(--shadow-md);
  transform:translateY(-8px);opacity:0;pointer-events:none;visibility:hidden;
  transition:opacity .18s ease, transform .18s ease, visibility 0s linear .2s;transform-origin:top right;
}
.menu-panel.open{opacity:1;transform:none;pointer-events:auto;visibility:visible;transition:opacity .18s ease, transform .18s ease;}
.menu-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:6px;}
.menu-head span{font-size:12px;font-weight:700;letter-spacing:.14em;color:var(--muted);text-transform:uppercase;}
.menu-x{width:34px;height:34px;border-radius:50%;border:1px solid var(--line);background:var(--bg-soft);display:grid;place-items:center;cursor:pointer;color:var(--ink);}
.menu-x:hover{background:var(--bg-soft-2);}
.menu-panel nav{display:flex;flex-direction:column;padding:10px 0 4px;}
.menu-panel nav a{font-weight:700;font-size:22px;letter-spacing:-.01em;padding:10px 2px;color:var(--ink);transition:color .15s ease,padding-left .15s ease;}
.menu-panel nav a:hover{color:var(--accent);padding-left:6px;}
.menu-foot{margin-top:16px;padding-top:16px;border-top:1px solid var(--line);display:flex;align-items:center;justify-content:space-between;gap:14px;}
.menu-foot-links{display:flex;gap:18px;flex-wrap:wrap;}
.menu-foot a,.menu-foot button.lang{font-size:15px;font-weight:600;color:var(--ink-2);background:none;border:none;padding:0;font-family:inherit;cursor:pointer;transition:color .15s ease;}
.menu-foot a:hover,.menu-foot button.lang:hover{color:var(--accent);}
.menu-panel nav a{opacity:0;transform:translateY(9px);}
.menu-panel.open nav a{opacity:1;transform:none;transition:opacity .3s ease, transform .3s ease, color .15s ease, padding-left .15s ease;}
.menu-panel.open nav a:nth-child(1){transition-delay:.05s;}
.menu-panel.open nav a:nth-child(2){transition-delay:.09s;}
.menu-panel.open nav a:nth-child(3){transition-delay:.13s;}
.menu-panel.open nav a:nth-child(4){transition-delay:.17s;}
.menu-panel.open nav a:nth-child(5){transition-delay:.21s;}
.menu-foot{opacity:0;transform:translateY(9px);}
.menu-panel.open .menu-foot{opacity:1;transform:none;transition:opacity .3s ease .24s, transform .3s ease .24s;}

/* ---------- Hero ---------- */
.hero{padding-top:60px;padding-bottom:40px;}
.hero-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:56px;align-items:center;}
.hero-grid>*{min-width:0;}
.badge{
  display:inline-flex;align-items:center;gap:9px;font-size:13.5px;font-weight:600;color:var(--accent-deep);
  background:var(--accent-tint);border:1px solid var(--accent-tint-line);border-radius:8px;padding:6px 13px 6px 11px;margin-bottom:26px;letter-spacing:.01em;
}
.badge .dot{width:7px;height:7px;border-radius:50%;background:var(--accent);flex:none;}
h1.hero-title{font-weight:800;letter-spacing:-.035em;line-height:1.06;font-size:clamp(44px,6.2vw,74px);margin:0 0 24px;color:var(--ink);}
h1.hero-title em{font-style:normal;color:var(--accent);}
.hero-sub{font-size:18.5px;line-height:1.6;color:var(--ink-2);max-width:34rem;margin:0 0 32px;}
.hero-cta{display:flex;align-items:center;gap:16px;flex-wrap:wrap;}
.cta-note{font-size:14px;color:var(--muted);font-weight:500;}

.hero-visual{position:relative;display:flex;justify-content:center;}
.blob{position:absolute;z-index:0;width:84%;height:80%;top:8%;left:8%;border-radius:46% 54% 52% 48%/52% 46% 54% 48%;
      background:radial-gradient(circle at 50% 40%, var(--accent-tint) 0%, var(--bg-soft) 58%, transparent 74%);filter:blur(4px);}
.phone-mockup{position:relative;z-index:1;width:300px;height:auto;display:block;filter:var(--phone-shadow);}
.float-chip{position:absolute;z-index:2;left:-12px;bottom:84px;background:var(--card);border:1px solid var(--line-strong);border-radius:14px;padding:11px 15px;box-shadow:var(--shadow-sm);min-width:150px;}
.float-chip .k{font-size:11px;color:var(--muted);font-weight:600;margin-bottom:3px;}
.float-chip .v{font-size:18px;font-weight:800;letter-spacing:-.02em;color:var(--ink);display:flex;align-items:center;gap:7px;}
.float-chip .v svg{width:17px;height:17px;color:var(--accent);flex:none;}

/* ---------- Section scaffolding ---------- */
section{padding:60px 0;scroll-margin-top:64px;}
.sec-head{max-width:640px;margin-bottom:42px;}
.eyebrow{font-size:12.5px;font-weight:700;letter-spacing:.13em;text-transform:uppercase;color:var(--accent-deep);margin-bottom:13px;}
h2.sec-title{font-weight:800;letter-spacing:-.03em;font-size:clamp(29px,3.8vw,42px);line-height:1.15;margin:0 0 14px;}
.sec-sub{font-size:18px;color:var(--ink-2);margin:0;}

/* Big feature row */
.feature-big{background:var(--bg-soft);border:1px solid var(--line);border-radius:24px;padding:clamp(28px,4vw,54px);display:grid;grid-template-columns:1.05fr .95fr;gap:48px;align-items:center;}
.feature-big>*{min-width:0;}
.step,.stx{min-width:0;}
.feature-big h3{font-weight:800;font-size:clamp(25px,3.2vw,36px);letter-spacing:-.025em;line-height:1.18;margin:0 0 16px;}
.feature-big p{font-size:18px;color:var(--ink-2);margin:0 0 22px;}
.steps{display:flex;flex-direction:column;gap:14px;}
.step{display:flex;gap:14px;align-items:flex-start;}
.step .n{flex:none;width:29px;height:29px;border-radius:9px;background:var(--accent);color:var(--on-ink);font-weight:700;font-size:14px;display:grid;place-items:center;margin-top:1px;}
.step .stx b{display:block;font-weight:700;font-size:16px;}
.step .stx span{font-size:15px;color:var(--muted);}

/* 掃描示意：實體名片 → 辨識欄位 */
.scan-demo{background:var(--card);border:1px solid var(--line);border-radius:16px;padding:22px;display:flex;flex-direction:column;align-items:center;gap:14px;}
.paper-card{width:100%;max-width:300px;aspect-ratio:91/55;border-radius:10px;background:linear-gradient(135deg,#fbfaf6,#efece4);border:1px solid #e2ddd0;color:#2a2a2a;padding:16px 18px;display:flex;flex-direction:column;justify-content:space-between;transform:rotate(-2.2deg);box-shadow:0 10px 24px -14px rgba(20,24,42,.35);position:relative;}
.paper-card .co{font-size:10.5px;font-weight:700;letter-spacing:.14em;text-transform:uppercase;color:#6b6656;}
.paper-card .nm{font-size:19px;font-weight:800;letter-spacing:-.01em;line-height:1.1;}
.paper-card .tt{font-size:11.5px;color:#6b6656;margin-top:2px;}
.paper-card .ct{font-size:10.5px;color:#55513f;line-height:1.5;}
.paper-card .corner{position:absolute;width:18px;height:18px;border:2.5px solid var(--accent);}
.paper-card .c1{top:-7px;left:-7px;border-right:none;border-bottom:none;border-radius:5px 0 0 0;}
.paper-card .c2{top:-7px;right:-7px;border-left:none;border-bottom:none;border-radius:0 5px 0 0;}
.paper-card .c3{bottom:-7px;left:-7px;border-right:none;border-top:none;border-radius:0 0 0 5px;}
.paper-card .c4{bottom:-7px;right:-7px;border-left:none;border-top:none;border-radius:0 0 5px 0;}
.scan-arrow{color:var(--accent);display:flex;align-items:center;gap:8px;font-size:12.5px;font-weight:700;letter-spacing:.04em;}
.scan-arrow svg{width:18px;height:18px;}
.fields{width:100%;max-width:340px;border:1px solid var(--line);border-radius:12px;background:var(--bg);overflow:hidden;}
.fields .f{display:grid;grid-template-columns:64px 1fr;gap:10px;padding:9px 14px;border-top:1px solid var(--line);font-size:14px;align-items:baseline;}
.fields .f:first-child{border-top:none;}
.fields .f small{font-size:12px;color:var(--muted);font-weight:600;}
.fields .f span{font-weight:600;color:var(--ink);overflow:hidden;text-overflow:ellipsis;white-space:nowrap;}

/* Feature grid */
.feat-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px;margin-top:26px;}
.feat{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:26px;}
.feat .ic{width:44px;height:44px;border-radius:12px;background:var(--accent-tint);color:var(--accent-deep);display:grid;place-items:center;margin-bottom:17px;}
.feat .ic svg{width:23px;height:23px;}
.feat h3{font-size:18.5px;font-weight:700;letter-spacing:-.01em;margin:0 0 8px;}
.feat p{font-size:15.5px;color:var(--ink-2);margin:0;line-height:1.6;}

/* Screens gallery */
.shots{display:flex;gap:18px;overflow-x:auto;scroll-snap-type:x mandatory;padding:6px 24px 18px;margin:0 -24px;scrollbar-width:thin;-webkit-overflow-scrolling:touch;}
.shots figure{margin:0;flex:none;width:236px;scroll-snap-align:start;}
.shots img{width:100%;height:auto;border-radius:18px;border:1px solid var(--line);box-shadow:var(--shadow-card);background:var(--bg-soft);}
.shots-hint{font-size:13.5px;color:var(--muted);margin:4px 0 0;}

/* Pricing */
.price-grid{display:grid;grid-template-columns:1fr 1fr;gap:20px;max-width:820px;margin:0 auto;}
.plan{background:var(--card);border:1px solid var(--line-strong);border-radius:22px;padding:32px;display:flex;flex-direction:column;}
.plan.pro{background:var(--bg-soft);border:1.5px solid var(--accent);position:relative;}
.plan .tag{position:absolute;top:20px;right:20px;font-size:11.5px;font-weight:700;letter-spacing:.06em;text-transform:uppercase;color:var(--on-ink);background:var(--accent);padding:4px 10px;border-radius:6px;}
.plan .pname{font-size:15px;font-weight:700;letter-spacing:.02em;color:var(--accent-deep);margin-bottom:12px;}
.plan.free .pname{color:var(--ink-2);}
.plan .price{display:flex;align-items:baseline;gap:6px;margin-bottom:4px;}
.plan .price b{font-weight:800;font-size:42px;letter-spacing:-.03em;color:var(--ink);line-height:1;}
.plan .price .per{font-size:15px;color:var(--muted);font-weight:600;}
.plan .psub{font-size:14px;color:var(--muted);margin:0 0 22px;min-height:20px;}
.plan ul{list-style:none;padding:0;margin:0 0 26px;display:flex;flex-direction:column;gap:11px;}
.plan li{display:flex;gap:10px;align-items:flex-start;font-size:15.5px;color:var(--ink-2);}
.plan li svg{width:18px;height:18px;flex:none;margin-top:3px;color:var(--accent);}
.plan li strong{color:var(--ink);}
.plan .cta{margin-top:auto;display:inline-flex;justify-content:center;align-items:center;gap:8px;font-weight:700;font-size:15.5px;border-radius:11px;padding:13px;border:1px solid var(--line-strong);color:var(--ink);background:var(--card);}
.plan.pro .cta{background:var(--ink);color:var(--on-ink);border-color:var(--ink);}
.plan .cta:hover{border-color:var(--ink-2);}
.plan.pro .cta:hover{opacity:.88;}
.price-note{text-align:center;font-size:13.5px;color:var(--muted);max-width:640px;margin:22px auto 0;line-height:1.6;}

/* Privacy strip */
.privacy-strip{background:var(--deep);color:var(--deep-text);border-radius:24px;padding:clamp(30px,4vw,52px);border:1px solid transparent;}
.privacy-strip .eyebrow{color:var(--deep-accent);}
.privacy-strip h2{color:#fff;font-weight:800;letter-spacing:-.03em;font-size:clamp(28px,3.6vw,42px);line-height:1.15;margin:0 0 16px;}
.privacy-strip p{color:var(--deep-muted);font-size:18px;max-width:44rem;margin:0 0 26px;}
.privacy-strip p a{color:#fff;text-decoration:underline;text-underline-offset:3px;}
.privacy-points{display:grid;grid-template-columns:repeat(3,1fr);gap:22px;margin-top:8px;}
.pp b{display:flex;align-items:center;gap:9px;font-size:16px;font-weight:700;color:#fff;margin-bottom:6px;}
.pp b svg{width:18px;height:18px;color:var(--deep-accent);flex:none;}
.pp span{font-size:14.5px;color:var(--deep-muted);line-height:1.6;}

/* ---------- FAQ ---------- */
.faq-wrap{max-width:860px;margin:0 auto;}
.faq{display:flex;flex-direction:column;gap:12px;}
.qa{background:var(--card);border:1px solid var(--line);border-radius:15px;overflow:hidden;transition:border-color .15s ease;}
.qa[open]{border-color:var(--line-strong);}
.qa summary{list-style:none;cursor:pointer;padding:20px 22px;display:flex;align-items:center;justify-content:space-between;gap:20px;font-size:18px;font-weight:700;letter-spacing:-.01em;color:var(--ink);}
.qa summary::-webkit-details-marker{display:none;}
.qa summary:hover{color:var(--accent-deep);}
.qa .chev{flex:none;transition:transform .2s ease;color:var(--muted);}
.qa[open] .chev{transform:rotate(180deg);}
.qa .ans{padding:0 22px 22px;color:var(--ink-2);font-size:16px;line-height:1.7;}
.qa .ans a{color:var(--accent-deep);font-weight:700;text-decoration:underline;text-underline-offset:2px;}
.qa .ans strong{color:var(--ink);}
.faq-more{text-align:center;margin:26px 0 0;font-weight:700;}
.faq-more a{color:var(--accent-deep);}
.faq-more a:hover{color:var(--accent);}

/* ---------- Bottom CTA ---------- */
.final-cta{text-align:center;padding:88px 0 80px;}
.final-cta h2{font-weight:800;letter-spacing:-.035em;font-size:clamp(34px,5vw,58px);line-height:1.1;margin:0 0 18px;}
.final-cta p{font-size:18.5px;color:var(--ink-2);margin:0 auto 30px;max-width:32rem;}
.final-cta .hero-cta{justify-content:center;}

/* ---------- Footer ---------- */
footer.site{border-top:1px solid var(--line);padding:42px 0;color:var(--muted);}
.foot{display:flex;align-items:center;justify-content:space-between;flex-wrap:wrap;gap:18px;}
.foot .logo{font-size:19px;}
.foot-links{display:flex;gap:22px;flex-wrap:wrap;font-size:15px;font-weight:600;}
.foot-links a,.foot-links button.lang{color:var(--ink-2);background:none;border:none;font:inherit;font-weight:600;cursor:pointer;padding:0;}
.foot-links a:hover,.foot-links button.lang:hover{color:var(--accent);}
.foot-copy{font-size:13.5px;width:100%;color:var(--muted);}

/* ---------- Sub pages（隱私權、支援） ---------- */
.doc-head{padding-top:56px;padding-bottom:8px;}
.doc-head .eyebrow{margin-bottom:12px;}
.doc-head h1{font-weight:800;letter-spacing:-.035em;font-size:clamp(34px,5vw,54px);line-height:1.15;margin:0 0 10px;}
.doc-head p{color:var(--muted);font-size:15px;margin:0;}
.doc{max-width:760px;padding:8px 0 90px;}
.doc .lede{font-size:18px;color:var(--ink-2);margin:22px 0 8px;}
.doc h2{font-weight:800;font-size:22px;letter-spacing:-.02em;margin:40px 0 12px;scroll-margin-top:96px;}
.doc p{color:var(--ink-2);margin:0 0 14px;}
.doc ul{list-style:none;padding:0;margin:0 0 14px;display:flex;flex-direction:column;gap:11px;}
.doc li{position:relative;padding-left:26px;color:var(--ink-2);line-height:1.6;}
.doc li::before{content:"";position:absolute;left:6px;top:11px;width:6px;height:6px;border-radius:50%;background:var(--accent);}
.doc strong{color:var(--ink);font-weight:700;}
.doc a{color:var(--accent-deep);font-weight:600;text-decoration:underline;text-underline-offset:2px;text-decoration-thickness:1px;}
.doc a:hover{color:var(--accent);}
.doc .note{font-size:15px;color:var(--muted);}
.summary-card{background:var(--bg-soft);border:1px solid var(--line);border-radius:18px;padding:22px 24px;margin:26px 0 6px;}
.summary-card b{display:block;font-size:15px;margin-bottom:10px;color:var(--ink);}
.summary-card ul{margin:0;}
.doc.support h2{margin:44px 0 14px;}
.doc.support .faq{gap:10px;}
.doc.support .qa summary{padding:18px 20px;font-size:17px;}
.doc.support .qa .ans{padding:0 20px 20px;}
.doc .qa .ans p{margin:0 0 10px;}
.doc .qa .ans p:last-child{margin:0;}
.contact-card{display:flex;align-items:center;justify-content:space-between;gap:20px;flex-wrap:wrap;background:var(--bg-soft);border:1px solid var(--line);border-radius:18px;padding:22px 24px;margin:26px 0 6px;}
.contact-card p{margin:4px 0 0;font-size:15px;}
.contact-card .btn{text-decoration:none;color:var(--on-ink);}
.contact-card .btn:hover{color:var(--on-ink);}

/* ---------- Changelog ---------- */
.cl-head{padding-top:56px;padding-bottom:20px;}
.cl-head h1{font-weight:800;letter-spacing:-.035em;font-size:clamp(36px,5vw,58px);line-height:1.12;margin:0 0 8px;}
.cl-head p{color:var(--muted);font-size:16px;margin:0;}
.cl-body{display:grid;grid-template-columns:180px 1fr;gap:48px;padding-top:16px;padding-bottom:90px;align-items:start;}
.cl-side{position:sticky;top:96px;display:flex;flex-direction:column;gap:2px;}
.cl-side a{padding:9px 12px;border-radius:9px;transition:background .15s ease;}
.cl-side a:hover{background:var(--bg-soft);}
.cl-side a b{display:block;font-weight:700;font-size:15px;letter-spacing:-.01em;}
.cl-side a span{font-size:12.5px;color:var(--muted);}
.cl-main{min-width:0;display:flex;flex-direction:column;}
.rel{padding:44px 0;border-bottom:1px solid var(--line);scroll-margin-top:96px;}
.rel:first-child{padding-top:8px;}
.rel:last-child{border-bottom:none;}
.rel-head h2{font-weight:800;font-size:30px;letter-spacing:-.025em;margin:0;}
.rel-date{display:block;font-size:15px;color:var(--muted);margin-top:6px;}
.rel-sum{font-size:17px;color:var(--ink-2);margin:16px 0 18px;}
.rel-list{list-style:none;padding:0;margin:0;display:flex;flex-direction:column;gap:10px;}
.rel-list li{position:relative;padding-left:26px;font-size:16px;color:var(--ink-2);line-height:1.6;}
.rel-list li::before{content:"";position:absolute;left:6px;top:10px;width:6px;height:6px;border-radius:50%;background:var(--accent);}

/* ---------- Language visibility ---------- */
html:not([lang="en"]) [data-lang-en]{display:none!important;}
html[lang="en"] [data-lang-zh]{display:none!important;}

/* ---------- Depth & motion ---------- */
.feat,.plan,.scan-demo,.qa,.float-chip,.feature-big{box-shadow:var(--shadow-card);}
@keyframes faqOpen{from{opacity:0;max-height:0;}to{opacity:1;max-height:900px;}}
.qa[open] .ans{overflow:hidden;animation:faqOpen .3s ease;}

/* ---------- Responsive ---------- */
@media (max-width:920px){
  .hero-grid{grid-template-columns:1fr;gap:44px;}
  .hero-visual{order:-1;}
  .float-chip{left:calc(50% - 190px);bottom:70px;}
  .feature-big{grid-template-columns:1fr;gap:32px;}
  .feat-grid{grid-template-columns:1fr 1fr;}
  .privacy-points{grid-template-columns:1fr;}
}
@media (max-width:760px){
  .doc-head{padding-top:40px;padding-bottom:4px;}
  .doc h2{font-size:20px;}
  .cl-body{grid-template-columns:1fr;gap:8px;}
  .cl-side{display:none;}
  .rel{padding:28px 0;}
}
@media (max-width:640px){
  body{font-size:16px;}
  .nav{height:64px;}
  .logo{font-size:19px;}
  .btn-getapp .txt{display:none;}
  .btn-getapp{padding:11px 14px;}
  .btn-menu .txt{display:none;}
  .btn-menu{padding:11px 14px;}
  .hero{padding-top:34px;padding-bottom:24px;}
  .phone-mockup{width:250px;}
  .float-chip{left:6px;bottom:54px;transform:scale(.92);transform-origin:left bottom;}
  .feat-grid{grid-template-columns:1fr;}
  .price-grid{grid-template-columns:1fr;max-width:420px;}
  .hero-cta{gap:12px;}
  .shots figure{width:200px;}
  .menu-panel{
    top:0;left:0;right:0;width:100%;
    border-radius:0 0 26px 26px;border-top:none;border-left:none;border-right:none;
    padding:16px 24px 30px;box-shadow:0 26px 50px -28px rgba(0,0,0,.45);
    transform:translateY(-102%);transform-origin:top center;
    transition:transform .4s cubic-bezier(.22,1,.36,1), opacity .2s ease, visibility 0s linear .4s;
  }
  .menu-panel.open{transform:translateY(0);transition:transform .4s cubic-bezier(.22,1,.36,1), opacity .2s ease;}
  .menu-head{padding-top:4px;}
  .menu-panel nav{padding:16px 0 8px;}
  .menu-panel nav a{font-size:28px;padding:12px 2px;}
  .menu-foot{margin-top:22px;padding-top:20px;flex-wrap:wrap;}
  .menu-foot a,.menu-foot button.lang{font-size:16px;}
}
@media (prefers-reduced-motion:reduce){
  *{scroll-behavior:auto!important;transition:none!important;animation:none!important;}
  .menu-panel nav a,.menu-foot{opacity:1!important;transform:none!important;}
}