:root{
  --blue:#2980FE;--blue-dark:#1767D6;--blue-soft:#EAF3FF;--blue-pale:#F5F8FD;
  --gray:#F7F9FC;--white:#FFFFFF;--text:#172033;--body:#465266;--muted:#718096;
  --border:#DCE6F2;--footer:#10233F;--radius:22px;--shadow:0 18px 50px rgba(23,103,214,.10);
  --container:min(1180px,calc(100% - 40px));
}
*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;color:var(--text);background:var(--white);font-family:Arial,"PingFang TC","Microsoft JhengHei",sans-serif;line-height:1.72;overflow-x:hidden}body.menu-open{overflow:hidden}img{max-width:100%;height:auto;display:block}a{color:inherit;text-decoration:none}button,input,textarea{font:inherit}.container{width:var(--container);margin-inline:auto}.skip-link{position:fixed;left:12px;top:-60px;z-index:9999;background:#fff;padding:10px 14px;border-radius:10px;box-shadow:var(--shadow)}.skip-link:focus{top:12px}
.site-header{position:sticky;top:0;z-index:1000;background:rgba(255,255,255,.94);backdrop-filter:blur(18px);border-bottom:1px solid rgba(220,230,242,.88)}.nav-shell{width:min(1320px,calc(100% - 28px));height:76px;margin:auto;display:flex;align-items:center;gap:24px}.brand{display:inline-flex;align-items:center;flex:0 0 auto}.brand img{width:150px;height:44px;object-fit:contain}.desktop-nav{display:flex;align-items:center;justify-content:center;gap:3px;flex:1;min-width:0}.nav-link{display:inline-flex;align-items:center;height:44px;padding:0 11px;border-radius:12px;font-size:14px;font-weight:700;white-space:nowrap;color:#334155}.nav-link:hover,.nav-link:focus-visible,.nav-link.is-active{background:var(--blue-soft);color:var(--blue-dark)}.nav-group{position:relative}.mega-menu{position:absolute;top:calc(100% + 12px);left:-40px;width:610px;display:grid;grid-template-columns:1.2fr 1fr 1fr;gap:10px;padding:18px;background:#fff;border:1px solid var(--border);border-radius:20px;box-shadow:0 24px 70px rgba(16,35,63,.16);opacity:0;visibility:hidden;transform:translateY(8px);transition:.2s ease}.mega-menu-right{left:auto;right:-120px}.nav-group:hover .mega-menu,.nav-group:focus-within .mega-menu{opacity:1;visibility:visible;transform:none}.mega-menu a,.mega-intro{padding:13px;border-radius:14px}.mega-menu a:hover,.mega-menu a:focus-visible{background:var(--blue-pale)}.mega-menu strong{display:block;font-size:14px;margin-bottom:3px}.mega-menu span{display:block;color:var(--muted);font-size:12px;line-height:1.45}.mega-intro{grid-row:span 2;background:linear-gradient(145deg,#edf5ff,#f9fbff)}.mega-intro strong{font-size:18px;color:var(--blue-dark)}.nav-actions{display:flex;align-items:center;gap:10px;flex:0 0 auto}.download-btn{display:inline-flex;align-items:center;justify-content:center;min-height:46px;padding:0 22px;border-radius:14px;background:linear-gradient(135deg,var(--blue),var(--blue-dark));color:#fff;font-weight:800;box-shadow:0 12px 24px rgba(41,128,254,.22);transition:transform .2s ease,box-shadow .2s ease}.download-btn:hover{transform:translateY(-2px);box-shadow:0 16px 30px rgba(41,128,254,.28)}.menu-toggle{display:none;width:46px;height:46px;border:1px solid var(--border);background:#fff;border-radius:14px;padding:11px;cursor:pointer}.menu-toggle span{display:block;height:2px;background:#172033;margin:5px 0;border-radius:9px}.mobile-overlay{position:fixed;inset:0;background:rgba(16,35,63,.42);z-index:1090;opacity:0;visibility:hidden;transition:.25s}.mobile-overlay.is-open{opacity:1;visibility:visible}.mobile-panel{position:fixed;top:0;right:0;width:min(430px,92vw);height:100dvh;background:#fff;z-index:1100;transform:translateX(102%);transition:.3s ease;display:flex;flex-direction:column;padding:18px;overflow-y:auto;box-shadow:-20px 0 70px rgba(16,35,63,.2)}.mobile-panel.is-open{transform:none}.mobile-panel-head{display:flex;align-items:center;justify-content:space-between;padding-bottom:14px;border-bottom:1px solid var(--border)}.mobile-close{width:44px;height:44px;border:0;border-radius:12px;background:var(--gray);font-size:30px;line-height:1}.mobile-nav{padding:14px 0;display:flex;flex-direction:column;gap:7px}.mobile-nav>a,.mobile-nav summary{display:flex;min-height:48px;align-items:center;padding:0 14px;border-radius:12px;font-weight:800;cursor:pointer}.mobile-nav>a:hover,.mobile-nav summary:hover{background:var(--blue-soft);color:var(--blue-dark)}.mobile-nav details div{display:grid;grid-template-columns:1fr 1fr;padding:7px 10px 10px;gap:6px}.mobile-nav details div a{padding:10px;border-radius:10px;background:var(--gray);font-size:14px}.mobile-download{margin-top:auto;width:100%}
.section{padding:92px 0}.section-sm{padding:58px 0}.section-soft{background:var(--blue-pale)}.section-blue{background:linear-gradient(135deg,#eff6ff,#e6f0ff)}.section-dark{background:linear-gradient(135deg,var(--footer),#153b70);color:#fff}.eyebrow{display:inline-flex;align-items:center;gap:8px;padding:7px 12px;border-radius:999px;background:var(--blue-soft);color:var(--blue-dark);font-size:13px;font-weight:800;letter-spacing:.04em}.section-dark .eyebrow{background:rgba(255,255,255,.12);color:#dbeafe}.hero-title,.page-title{font-size:clamp(38px,5vw,68px);line-height:1.08;letter-spacing:-.04em;margin:20px 0}.section-title{font-size:clamp(30px,4vw,48px);line-height:1.16;letter-spacing:-.03em;margin:14px 0}.lead{font-size:18px;color:var(--body);max-width:760px}.section-dark .lead,.section-dark p{color:#d9e6f7}.muted{color:var(--muted)}.actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:28px}.text-link{display:inline-flex;align-items:center;gap:8px;color:var(--blue-dark);font-weight:800}.text-link:after{content:'→';transition:.2s}.text-link:hover:after{transform:translateX(4px)}.button-secondary{display:inline-flex;align-items:center;justify-content:center;min-height:46px;padding:0 20px;border-radius:14px;border:1px solid var(--border);background:#fff;color:var(--text);font-weight:800}.button-secondary:hover{border-color:var(--blue);color:var(--blue-dark)}
.home-hero{padding:72px 0 48px;background:radial-gradient(circle at 84% 18%,#ddecff 0,transparent 29%),linear-gradient(180deg,#fff,#f7faff)}.hero-grid{display:grid;grid-template-columns:1.12fr .88fr;gap:44px;align-items:center}.hero-copy p{max-width:680px}.hero-tags{display:flex;flex-wrap:wrap;gap:9px;margin-top:22px}.hero-tags span{padding:8px 12px;border:1px solid var(--border);background:#fff;border-radius:999px;color:#4b5c72;font-size:14px}.hero-visual{position:relative;min-height:520px;display:grid;place-items:center}.hero-visual>img{max-height:480px;object-fit:contain;filter:drop-shadow(0 28px 40px rgba(23,103,214,.18))}.float-note{position:absolute;background:rgba(255,255,255,.92);border:1px solid var(--border);box-shadow:var(--shadow);border-radius:15px;padding:12px 14px;font-size:13px;font-weight:800}.float-note.n1{left:0;top:17%}.float-note.n2{right:0;top:38%}.float-note.n3{left:9%;bottom:12%}.capability-bar{display:grid;grid-template-columns:repeat(4,1fr);gap:1px;background:var(--border);border:1px solid var(--border);border-radius:20px;overflow:hidden;box-shadow:var(--shadow)}.capability-item{background:#fff;padding:24px}.capability-item strong{display:block;margin-bottom:7px;color:var(--blue-dark)}.capability-item p{margin:0;color:var(--muted);font-size:14px}
.section-head{display:flex;justify-content:space-between;gap:24px;align-items:flex-end;margin-bottom:34px}.section-head>div{max-width:760px}.category-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}.category-card{position:relative;min-height:220px;padding:26px;border:1px solid var(--border);border-radius:var(--radius);background:#fff;display:flex;flex-direction:column;overflow:hidden}.category-card:before{content:'';position:absolute;width:150px;height:150px;border-radius:50%;right:-55px;top:-55px;background:var(--blue-soft)}.category-card>*{position:relative}.category-card h3{margin:0 0 10px;font-size:21px}.category-card p{margin:0 0 22px;color:var(--body)}.category-card a{margin-top:auto}.category-card.wide{grid-column:span 2;background:linear-gradient(135deg,#fff,#eef5ff)}.category-card.tall{grid-row:span 2;min-height:458px;background:linear-gradient(150deg,#eaf3ff,#fff)}
.feature-grid{display:grid;grid-template-columns:1fr 1fr;gap:34px;align-items:center}.image-panel{min-height:430px;border-radius:30px;background:linear-gradient(145deg,#dcecff,#f8fbff);display:grid;place-items:center;padding:32px;overflow:hidden}.image-panel img{max-height:390px;object-fit:contain}.content-panel{padding:12px}.check-list{list-style:none;padding:0;margin:24px 0;display:grid;gap:12px}.check-list li{position:relative;padding-left:32px;color:var(--body)}.check-list li:before{content:'✓';position:absolute;left:0;top:0;width:22px;height:22px;border-radius:50%;background:var(--blue-soft);color:var(--blue-dark);display:grid;place-items:center;font-weight:900;font-size:13px}.split-cards{display:grid;grid-template-columns:1.05fr .95fr;gap:22px}.topic-card{padding:34px;border-radius:28px;border:1px solid var(--border);background:#fff}.topic-card.accent{background:linear-gradient(145deg,#eaf3ff,#fff)}.topic-card h3{font-size:28px;margin:10px 0}.topic-card p{color:var(--body)}.topic-card ul{padding-left:20px;color:var(--body)}.topic-card.large{min-height:400px}.topic-card.compact{align-self:end}.security-grid{display:grid;grid-template-columns:.8fr 1.2fr;gap:30px;align-items:center}.security-points{display:grid;grid-template-columns:1fr 1fr;gap:14px}.security-point{padding:18px;border:1px solid rgba(255,255,255,.16);background:rgba(255,255,255,.08);border-radius:16px}.security-point strong{display:block;margin-bottom:5px}.security-point span{font-size:14px;color:#d9e6f7}.swap-layout{display:grid;grid-template-columns:.9fr 1.1fr;gap:34px;align-items:center}.steps{display:grid;grid-template-columns:repeat(6,1fr);gap:14px}.step{position:relative;padding:22px 18px;border-radius:18px;background:#fff;border:1px solid var(--border)}.step-num{width:38px;height:38px;border-radius:12px;background:var(--blue);color:#fff;display:grid;place-items:center;font-weight:900;margin-bottom:14px}.step h3{font-size:17px;line-height:1.35}.step p{font-size:14px;color:var(--muted)}.step a{font-size:14px}.timeline{display:grid;gap:0;border-left:2px solid var(--border);margin-left:10px}.timeline-item{position:relative;padding:0 0 28px 28px}.timeline-item:before{content:'';position:absolute;left:-8px;top:7px;width:14px;height:14px;border-radius:50%;background:var(--blue);box-shadow:0 0 0 6px var(--blue-soft)}.timeline-item small{color:var(--blue-dark);font-weight:800}.timeline-item h3{margin:6px 0}.timeline-item p{margin:0;color:var(--body)}.review-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}.review{padding:24px;border-radius:20px;background:#fff;border:1px solid var(--border);box-shadow:0 12px 30px rgba(16,35,63,.05)}.review p{margin:0;color:var(--body)}.review footer{margin-top:16px;color:var(--blue-dark);font-weight:800;font-size:14px}.faq-list{display:grid;gap:12px;max-width:920px;margin:34px auto 0}.faq-item{border:1px solid var(--border);border-radius:18px;background:#fff;overflow:hidden}.faq-question{width:100%;min-height:64px;padding:16px 20px;border:0;background:#fff;text-align:left;font-weight:800;color:var(--text);display:flex;align-items:center;justify-content:space-between;cursor:pointer}.faq-question:after{content:'+';font-size:24px;color:var(--blue)}.faq-question[aria-expanded="true"]:after{content:'−'}.faq-answer{padding:0 20px 20px;color:var(--body)}.cta-box{padding:54px;border-radius:30px;background:linear-gradient(135deg,#e9f3ff,#f8fbff);text-align:center;border:1px solid var(--border)}.cta-box p{max-width:680px;margin:0 auto;color:var(--body)}.cta-box .actions{justify-content:center}
.page-hero{padding:74px 0 54px;background:linear-gradient(180deg,#f4f8ff,#fff)}.page-hero-grid{display:grid;grid-template-columns:1.1fr .9fr;gap:30px;align-items:center}.page-hero-art{min-height:330px;border-radius:28px;background:linear-gradient(145deg,#dcecff,#f8fbff);display:grid;place-items:center;padding:28px}.page-hero-art img{max-height:300px;object-fit:contain}.info-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}.info-card{padding:24px;border:1px solid var(--border);border-radius:20px;background:#fff}.info-card h3{margin-top:0}.info-card p{margin-bottom:0;color:var(--body)}.article-body{max-width:860px;margin:auto}.article-body h2{font-size:34px;margin-top:52px}.article-body h3{font-size:22px;margin-top:32px}.article-body p,.article-body li{color:var(--body)}.comparison{width:100%;border-collapse:separate;border-spacing:0;border:1px solid var(--border);border-radius:18px;overflow:hidden}.comparison th,.comparison td{padding:15px;text-align:left;border-bottom:1px solid var(--border)}.comparison th{background:var(--blue-soft)}.comparison tr:last-child td{border-bottom:0}.notice{padding:22px;border-left:4px solid var(--blue);background:var(--blue-pale);border-radius:0 16px 16px 0}.contact-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}.contact-card{padding:28px;border-radius:22px;border:1px solid var(--border);background:#fff}
.site-footer{background:var(--footer);color:#fff}.footer-main{display:grid;grid-template-columns:1.4fr repeat(3,1fr);gap:38px;padding-top:64px;padding-bottom:48px}.footer-brand p{color:#b8c7da;max-width:360px}.brand-light img{filter:brightness(0) invert(1)}.footer-main h2{font-size:15px;margin:0 0 14px;color:#dbeafe}.footer-main>div:not(.footer-brand){display:flex;flex-direction:column;gap:9px}.footer-main a{color:#b8c7da;font-size:14px}.footer-main a:hover{color:#fff}.footer-bottom{padding:22px 0;border-top:1px solid rgba(255,255,255,.1);display:flex;justify-content:space-between;gap:20px;color:#9db0c8;font-size:13px}.footer-bottom div{display:flex;gap:18px}
@media (max-width:1180px){.desktop-nav{display:none}.menu-toggle{display:block}.nav-shell{height:70px}.header-download{min-height:44px;padding:0 16px}.steps{grid-template-columns:repeat(3,1fr)}.category-grid{grid-template-columns:repeat(2,1fr)}.category-card.tall{grid-row:auto;min-height:240px}.footer-main{grid-template-columns:1.2fr 1fr 1fr}.footer-main>div:last-child{grid-column:2/4}}
@media (max-width:820px){:root{--container:min(100% - 28px,720px)}.section{padding:68px 0}.home-hero{padding-top:50px}.hero-grid,.page-hero-grid,.feature-grid,.security-grid,.swap-layout{grid-template-columns:1fr}.hero-visual{min-height:410px}.capability-bar{grid-template-columns:1fr 1fr}.split-cards{grid-template-columns:1fr}.steps{grid-template-columns:1fr 1fr}.review-grid,.info-grid,.contact-grid{grid-template-columns:1fr 1fr}.footer-main{grid-template-columns:1fr 1fr}.footer-main>div:last-child{grid-column:auto}.footer-brand{grid-column:1/-1}.security-grid img{max-height:320px;margin:auto}.section-head{display:block}.section-head .text-link{margin-top:12px}}
@media (max-width:560px){:root{--container:calc(100% - 24px)}.brand img{width:128px;height:38px}.nav-shell{width:calc(100% - 18px);gap:8px}.header-download{font-size:13px;min-height:42px;padding:0 13px}.menu-toggle{width:42px;height:42px;padding:9px}.hero-title,.page-title{font-size:40px}.section-title{font-size:31px}.lead{font-size:16px}.hero-visual{min-height:340px}.float-note{position:static;display:inline-flex;margin:5px;padding:10px;font-size:12px}.hero-visual{display:flex;flex-wrap:wrap;justify-content:center}.hero-visual>img{width:100%;max-height:310px}.capability-bar,.category-grid,.review-grid,.info-grid,.contact-grid{grid-template-columns:1fr}.category-card.wide{grid-column:auto}.steps{grid-template-columns:1fr}.security-points{grid-template-columns:1fr}.cta-box{padding:34px 20px}.page-hero-art{min-height:260px}.footer-main{grid-template-columns:1fr}.footer-brand{grid-column:auto}.footer-bottom{flex-direction:column}.footer-bottom div{flex-wrap:wrap}.mobile-nav details div{grid-template-columns:1fr}.section{padding:56px 0}.section-sm{padding:42px 0}}