:root{
    --primary:#2980FE;
    --primary-dark:#1767d8;
    --text:#202938;
    --muted:#657085;
    --soft:#f5f8fc;
    --soft-blue:#eef6ff;
    --line:#e4ebf3;
    --white:#ffffff;
    --gray:#f2f5f9;
    --shadow:0 18px 48px rgba(24,83,151,.10);
    --radius:28px;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
    margin:0;
    font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang TC","Noto Sans TC","Microsoft JhengHei",Arial,sans-serif;
    color:var(--text);
    background:linear-gradient(180deg,#fff 0%,#f8fbff 42%,#fff 100%);
    line-height:1.75;
    overflow-x:hidden;
}
a{color:inherit;text-decoration:none}
img{max-width:100%;display:block}
.container{width:min(1120px,calc(100% - 32px));margin:0 auto}
.section{padding:58px 0}
.section.compact{padding:42px 0}
.eyebrow,.category-badge{
    display:inline-flex;
    align-items:center;
    gap:8px;
    color:var(--primary);
    background:var(--soft-blue);
    border:1px solid rgba(41,128,254,.15);
    border-radius:999px;
    padding:6px 13px;
    font-size:13px;
    font-weight:700;
    letter-spacing:.02em;
}
.section-title{font-size:clamp(28px,5vw,48px);line-height:1.16;margin:14px 0 12px;letter-spacing:-.04em}
.section-lead{color:var(--muted);font-size:16px;max-width:760px;margin:0 auto 26px}
.site-header{
    position:sticky;top:0;z-index:50;
    background:rgba(255,255,255,.88);
    backdrop-filter:blur(18px);
    border-bottom:1px solid rgba(228,235,243,.86);
}
.header-inner{width:min(1180px,calc(100% - 28px));margin:0 auto;display:flex;align-items:center;justify-content:space-between;min-height:72px;gap:18px}
.logo,.footer-logo{display:inline-flex;align-items:center;gap:10px;font-weight:900;letter-spacing:-.03em;color:#172033}
.logo img,.footer-logo img{width:38px;height:38px;object-fit:contain;border-radius:12px}
.nav-toggle{display:inline-flex;flex-direction:column;gap:5px;border:0;background:var(--soft-blue);border-radius:14px;padding:10px;cursor:pointer}
.nav-toggle span{width:22px;height:2px;background:var(--primary);display:block;border-radius:5px}
.nav-links{position:absolute;left:14px;right:14px;top:72px;background:#fff;border:1px solid var(--line);box-shadow:var(--shadow);border-radius:22px;padding:12px;display:none;flex-direction:column;gap:2px}
.nav-links.open{display:flex}
.nav-links a{padding:12px 14px;border-radius:14px;color:#3d485a;font-weight:700;font-size:14px}
.nav-links a:hover,.nav-links a.active{background:var(--soft-blue);color:var(--primary)}
.download-btn{
    display:inline-flex;
    align-items:center;
    justify-content:center;
    min-height:48px;
    padding:0 24px;
    border-radius:999px;
    border:1px solid var(--primary);
    background:linear-gradient(135deg,var(--primary),#5da0ff);
    color:#fff;
    font-weight:900;
    box-shadow:0 12px 24px rgba(41,128,254,.24);
    transition:transform .2s ease,box-shadow .2s ease,background .2s ease;
}
.download-btn:hover{transform:translateY(-2px);box-shadow:0 16px 32px rgba(41,128,254,.30);background:linear-gradient(135deg,var(--primary-dark),var(--primary))}
.launch-hero{position:relative;padding:54px 0 34px;overflow:hidden;background:radial-gradient(circle at top right,rgba(41,128,254,.17),transparent 34%),linear-gradient(180deg,#fff,#f7fbff)}
.launch-hero:before{content:"";position:absolute;width:360px;height:360px;border-radius:50%;background:rgba(41,128,254,.09);left:-180px;top:80px;filter:blur(2px)}
.hero-grid{position:relative;display:grid;gap:36px;align-items:center}
.hero-copy h1{font-size:clamp(36px,9vw,74px);line-height:1.05;margin:16px 0 18px;letter-spacing:-.07em;color:#111b2d}
.hero-copy p{color:var(--muted);font-size:18px;margin:0 0 24px;max-width:620px}
.hero-actions{display:flex;align-items:center;gap:14px;flex-wrap:wrap;margin:24px 0}
.security-tags,.hero-float-tags,.pill-row{display:flex;gap:10px;flex-wrap:wrap}
.security-tags span,.hero-float-tags span,.pill-row span{display:inline-flex;align-items:center;border-radius:999px;background:#fff;border:1px solid var(--line);color:#3c4656;padding:8px 12px;font-size:13px;font-weight:800;box-shadow:0 8px 20px rgba(43,80,128,.06)}
.security-tags span:before,.hero-float-tags span:before{content:"";width:7px;height:7px;border-radius:50%;background:var(--primary);margin-right:8px}
.app-showcase,.hero-visual{position:relative;display:grid;place-items:center;padding:18px}
.phone-glow{position:absolute;inset:5% 8%;border-radius:44px;background:linear-gradient(135deg,rgba(41,128,254,.18),rgba(255,255,255,.2));filter:blur(18px)}
.hero-phone{position:relative;max-height:560px;object-fit:contain;filter:drop-shadow(0 26px 42px rgba(27,74,130,.20))}
.float-label{position:absolute;background:rgba(255,255,255,.94);border:1px solid var(--line);border-radius:18px;padding:10px 13px;font-size:13px;font-weight:900;color:#263244;box-shadow:var(--shadow)}
.float-label.one{top:9%;left:0}.float-label.two{right:0;top:28%}.float-label.three{left:2%;bottom:22%}.float-label.four{right:4%;bottom:8%}
.highlight-bar{display:grid;grid-template-columns:1fr;gap:14px;margin-top:-6px}
.highlight-card{background:#fff;border:1px solid var(--line);border-radius:22px;padding:18px;box-shadow:0 10px 30px rgba(27,74,130,.06);display:flex;flex-direction:column;gap:8px;min-height:150px}
.highlight-card .tag{align-self:flex-start;background:var(--soft-blue);color:var(--primary);border-radius:999px;padding:4px 10px;font-size:12px;font-weight:900}
.highlight-card h3{margin:0;font-size:18px;letter-spacing:-.02em}.highlight-card p{margin:0;color:var(--muted);font-size:14px}.highlight-card a{color:var(--primary);font-weight:900;margin-top:auto}
.big-feature-card,.launch-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:22px;box-shadow:var(--shadow);display:grid;gap:24px;align-items:center;margin-bottom:24px;overflow:hidden}
.big-feature-card.blue,.gradient-background{background:linear-gradient(135deg,#fff,#eef6ff)}
.big-feature-card.gray{background:linear-gradient(135deg,#f9fbfe,#fff)}
.big-feature-card h2,.launch-card h2{font-size:clamp(26px,5vw,42px);line-height:1.16;margin:10px 0 12px;letter-spacing:-.045em}
.big-feature-card p,.launch-card p,.content-card p{color:var(--muted);margin:0 0 14px}
.feature-image-wrap{display:grid;place-items:center;background:linear-gradient(180deg,#f7fbff,#fff);border:1px solid var(--line);border-radius:26px;padding:20px;min-height:260px}
.feature-image-wrap img{max-height:430px;object-fit:contain;filter:drop-shadow(0 18px 34px rgba(36,88,150,.16))}
.check-list{list-style:none;margin:20px 0 0;padding:0;display:grid;gap:10px}
.check-list li{position:relative;padding-left:28px;color:#3b4656;font-weight:650}
.check-list li:before{content:"";position:absolute;left:0;top:.62em;width:10px;height:10px;background:var(--primary);border-radius:50%;box-shadow:0 0 0 5px rgba(41,128,254,.11)}
.link-row{display:flex;flex-wrap:wrap;gap:12px;margin-top:20px}
.inline-link{color:var(--primary);font-weight:900;border-bottom:1px solid rgba(41,128,254,.28)}
.process-steps{display:grid;gap:14px;counter-reset:step}
.step-card{counter-increment:step;background:#fff;border:1px solid var(--line);border-radius:22px;padding:18px;box-shadow:0 8px 22px rgba(22,65,120,.05)}
.step-card:before{content:counter(step, decimal-leading-zero);display:inline-flex;color:#fff;background:var(--primary);font-weight:900;width:38px;height:38px;align-items:center;justify-content:center;border-radius:14px;margin-bottom:12px}
.step-card h3{margin:0 0 6px;font-size:18px}.step-card p{margin:0 0 10px;color:var(--muted);font-size:14px}.step-card a{color:var(--primary);font-weight:900}
.risk-grid,.category-grid,.cards-grid,.faq-grid{display:grid;gap:14px}
.risk-card,.category-card,.info-card,.faq-item,.content-card,.side-card{background:#fff;border:1px solid var(--line);border-radius:22px;padding:18px;box-shadow:0 8px 24px rgba(31,84,139,.05)}
.risk-card{border-left:4px solid var(--primary)}
.risk-card h3,.category-card h3,.info-card h3,.faq-item h3,.content-card h2,.side-card h3{margin:0 0 8px;letter-spacing:-.02em}.risk-card p,.category-card p,.info-card p,.faq-item p,.side-card p{margin:0;color:var(--muted)}
.risk-card strong{display:block;margin-top:10px;color:#2d3748}.risk-card a,.category-card a,.info-card a{display:inline-flex;margin-top:12px;color:var(--primary);font-weight:900}
.app-category-center{background:linear-gradient(180deg,#f6faff,#fff);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.category-card{min-height:168px}.category-card .mini{display:inline-flex;background:var(--soft-blue);color:var(--primary);border-radius:12px;padding:3px 9px;font-size:12px;font-weight:900;margin-bottom:12px}
.cta-section{padding:62px 0;background:radial-gradient(circle at top,rgba(41,128,254,.15),transparent 38%),linear-gradient(135deg,#f4f9ff,#fff);text-align:center}
.cta-box{width:min(820px,calc(100% - 32px));margin:0 auto;background:rgba(255,255,255,.78);border:1px solid var(--line);border-radius:32px;padding:34px 22px;box-shadow:var(--shadow)}
.cta-box h2{font-size:clamp(28px,5vw,46px);line-height:1.16;margin:0 0 12px;letter-spacing:-.05em}.cta-box p{color:var(--muted);margin:0 auto 22px;max-width:650px}
.page-hero{padding:58px 0 26px;background:radial-gradient(circle at top right,rgba(41,128,254,.16),transparent 36%),linear-gradient(180deg,#fff,#f7fbff)}
.page-hero h1{font-size:clamp(34px,7vw,60px);line-height:1.08;letter-spacing:-.06em;margin:16px 0 14px}.page-hero p{color:var(--muted);font-size:17px;max-width:780px;margin:0}
.content-layout{display:grid;gap:22px;align-items:start}.article-stack{display:grid;gap:16px}.content-card h2{font-size:24px}.content-card ul,.content-card ol{margin:12px 0 0;padding-left:20px;color:#3c4658}.content-card li{margin:8px 0}.notice-box{background:var(--soft-blue);border:1px solid rgba(41,128,254,.18);border-radius:22px;padding:18px;color:#334155}.notice-box strong{color:var(--primary)}
.aside-stack{display:grid;gap:14px}.side-card{position:sticky;top:94px}.side-card a{display:block;color:var(--primary);font-weight:900;margin-top:10px}
.download-panel{display:flex;align-items:center;justify-content:space-between;gap:18px;flex-wrap:wrap;background:#fff;border:1px solid var(--line);border-radius:26px;padding:20px;box-shadow:var(--shadow)}
.download-panel p{margin:0;color:var(--muted)}
.download-steps{counter-reset:dl;display:grid;gap:12px}.download-step{counter-increment:dl;background:#fff;border:1px solid var(--line);border-radius:20px;padding:16px;display:flex;gap:14px;align-items:flex-start}.download-step:before{content:counter(dl);width:34px;height:34px;background:var(--primary);color:#fff;border-radius:12px;display:inline-flex;align-items:center;justify-content:center;font-weight:900;flex:0 0 auto}.download-step h3{margin:0 0 4px}.download-step p{margin:0;color:var(--muted)}
.faq-page .faq-item{padding:22px}.faq-item h2{font-size:20px;margin:0 0 8px}.faq-item p{color:var(--muted);margin:0}
.site-footer{background:#172033;color:#d9e2ef;padding:42px 0 0;margin-top:0}.footer-grid{display:grid;gap:24px}.footer-logo{color:#fff;margin-bottom:12px}.footer-logo img{background:#fff}.site-footer p{color:#aeb9c9;margin:0;max-width:360px}.site-footer h3{color:#fff;margin:0 0 12px}.site-footer a{display:block;color:#d9e2ef;margin:7px 0}.site-footer a:hover{color:#fff}.footer-bottom{text-align:center;color:#aeb9c9;border-top:1px solid rgba(255,255,255,.12);padding:18px;margin-top:30px;font-size:13px}
@media (min-width:640px){
    .highlight-bar{grid-template-columns:repeat(2,1fr)}
    .risk-grid,.category-grid,.cards-grid,.faq-grid{grid-template-columns:repeat(2,1fr)}
    .process-steps{grid-template-columns:repeat(2,1fr)}
}
@media (min-width:900px){
    .section{padding:82px 0}.launch-hero{padding:86px 0 58px}.hero-grid{grid-template-columns:1.02fr .98fr}.nav-toggle{display:none}.nav-links{position:static;display:flex;flex-direction:row;background:transparent;border:0;box-shadow:none;padding:0;gap:2px}.nav-links a{font-size:14px;padding:9px 11px}.highlight-bar{grid-template-columns:repeat(3,1fr)}.big-feature-card,.launch-card{grid-template-columns:1fr 1fr;padding:36px;margin-bottom:32px}.big-feature-card.reverse .feature-image-wrap{order:-1}.process-steps{grid-template-columns:repeat(3,1fr)}.risk-grid{grid-template-columns:repeat(4,1fr)}.category-grid{grid-template-columns:repeat(4,1fr)}.faq-grid{grid-template-columns:repeat(2,1fr)}.content-layout{grid-template-columns:minmax(0,1fr) 318px}.footer-grid{grid-template-columns:1.4fr .8fr .8fr .8fr}.float-label{display:block}
}
@media (max-width:420px){
    .container{width:min(100% - 24px,1120px)}.header-inner{width:calc(100% - 22px)}.hero-copy h1{font-size:35px}.hero-copy p{font-size:16px}.download-btn{width:100%;min-height:52px}.hero-actions .download-btn{width:auto}.big-feature-card{padding:18px;border-radius:22px}.feature-image-wrap{min-height:220px}.section-title{font-size:30px}.float-label{position:static;margin:6px}.hero-float-tags{display:grid;grid-template-columns:1fr 1fr;margin-top:12px}.hero-float-tags span{font-size:12px;justify-content:center}.page-hero{padding-top:44px}.download-panel .download-btn{width:100%}
}