:root{
--blue:#2980FE;--blue-dark:#1767D6;--blue-soft:#EAF3FF;--blue-faint:#F5F8FD;
--gray:#F7F9FC;--white:#fff;--ink:#172033;--text:#465266;--muted:#718096;
--line:#DCE6F2;--footer:#10233F;--shadow:0 18px 50px rgba(35,94,170,.10);
--r-lg:28px;--r-md:20px;--container:1200px
}
*{box-sizing:border-box}html{scroll-behavior:smooth;overflow-x:hidden}
body{margin:0;color:var(--text);background:#fff;font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","Noto Sans TC","PingFang TC","Microsoft JhengHei",sans-serif;line-height:1.75;overflow-x:hidden}
body.menu-open{overflow:hidden}img{display:block;max-width:100%;height:auto}a{color:inherit;text-decoration:none}
button,input,textarea,select{font:inherit}.container{width:min(calc(100% - 40px),var(--container));margin-inline:auto}
.skip-link{position:fixed;top:8px;left:8px;z-index:9999;transform:translateY(-150%);padding:10px 16px;border-radius:10px;background:#111;color:#fff}
.skip-link:focus{transform:none}.section{padding:92px 0}.section-tight{padding:62px 0}.section-soft{background:var(--blue-faint)}
.section-blue{background:linear-gradient(135deg,#F7FBFF,#EAF3FF)}
.section-dark{color:#fff;background:radial-gradient(circle at 85% 15%,rgba(41,128,254,.36),transparent 34%),linear-gradient(135deg,#10233F,#143B6B)}
h1,h2,h3,h4{margin:0 0 18px;color:var(--ink);line-height:1.24}h1{font-size:clamp(2.45rem,5.2vw,5rem);letter-spacing:-.045em}
h2{font-size:clamp(2rem,3.5vw,3.25rem);letter-spacing:-.035em}h3{font-size:1.25rem}p{margin:0 0 18px}
.section-dark h1,.section-dark h2,.section-dark h3{color:#fff}.lead{font-size:clamp(1.05rem,1.8vw,1.25rem);color:#53627A}
.section-dark .lead{color:#D7E6FA}.eyebrow{display:inline-flex;align-items:center;gap:8px;margin-bottom:14px;color:var(--blue-dark);font-weight:850;font-size:.78rem;letter-spacing:.12em;text-transform:uppercase}
.eyebrow:before{content:"";width:22px;height:2px;border-radius:9px;background:currentColor}.section-dark .eyebrow{color:#9DC5FF}
.section-heading{max-width:780px;margin-bottom:44px}.section-heading.center{text-align:center;margin-inline:auto}.section-heading.center .eyebrow{justify-content:center}
.button-row{display:flex;flex-wrap:wrap;gap:12px;margin-top:28px}.button{min-height:48px;display:inline-flex;align-items:center;justify-content:center;padding:12px 21px;border:1px solid transparent;border-radius:999px;font-weight:850;transition:.2s}
.button:hover{transform:translateY(-2px)}.button-primary{color:#fff;background:linear-gradient(135deg,var(--blue),var(--blue-dark));box-shadow:0 10px 26px rgba(41,128,254,.24)}
.button-secondary{color:var(--ink);background:#fff;border-color:var(--line)}.button-ghost{color:#fff;background:rgba(255,255,255,.1);border-color:rgba(255,255,255,.24)}
.button-compact{min-height:42px;padding:9px 18px;white-space:nowrap}

.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,.85)}
.nav-shell{width:min(calc(100% - 32px),1380px);min-height:76px;margin-inline:auto;display:flex;align-items:center;gap:24px}
.brand{display:inline-flex;align-items:center;flex:0 0 auto}.brand img{width:158px;object-fit:contain}
.desktop-nav{margin-left:auto;display:flex;align-items:center;gap:3px}.nav-link{min-height:44px;padding:10px 12px;display:inline-flex;align-items:center;border-radius:12px;color:#334157;font-size:.92rem;font-weight:760}
.nav-link:hover,.nav-link.is-active,.nav-group.is-active>.nav-link{color:var(--blue-dark);background:var(--blue-soft)}.nav-group{position:relative}
.mega-menu{position:absolute;top:calc(100% + 12px);left:50%;width:650px;display:grid;grid-template-columns:.9fr 1.45fr;gap:22px;padding:22px;border:1px solid var(--line);border-radius:24px;background:rgba(255,255,255,.99);box-shadow:var(--shadow);opacity:0;visibility:hidden;transform:translate(-50%,10px);transition:.2s;pointer-events:none}
.nav-group:hover .mega-menu,.nav-group:focus-within .mega-menu{opacity:1;visibility:visible;transform:translate(-50%,0);pointer-events:auto}
.mega-intro{padding:20px;border-radius:18px;background:linear-gradient(145deg,var(--blue-soft),#F9FCFF)}.mega-intro>span{display:block;color:var(--blue-dark);font-size:.78rem;font-weight:850;margin-bottom:8px}
.mega-intro strong{display:block;color:var(--ink);font-size:1.12rem;margin-bottom:8px}.mega-intro p{margin:0;color:var(--muted);font-size:.9rem;line-height:1.6}
.mega-links{display:grid;grid-template-columns:1fr 1fr;gap:8px}.mega-links a{padding:12px;border-radius:14px}.mega-links a:hover,.mega-links a:focus{background:var(--blue-faint)}
.mega-links b,.mega-links small{display:block}.mega-links b{color:var(--ink);font-size:.95rem;margin-bottom:3px}.mega-links small{color:var(--muted);font-size:.8rem;line-height:1.45}
.nav-actions{margin-left:4px;display:flex;align-items:center;gap:9px}.menu-button,.menu-close{width:44px;height:44px;border:1px solid var(--line);border-radius:14px;background:#fff;cursor:pointer;display:none;align-items:center;justify-content:center}
.menu-button{flex-direction:column;gap:4px}.menu-button span{width:19px;height:2px;border-radius:99px;background:var(--ink)}
.menu-overlay{position:fixed;inset:0;z-index:1100;background:rgba(16,35,63,.46);backdrop-filter:blur(4px)}
.mobile-menu{position:fixed;inset:0 0 0 auto;z-index:1200;width:min(92vw,430px);display:flex;flex-direction:column;background:#fff;transform:translateX(105%);transition:transform .28s;box-shadow:-24px 0 70px rgba(16,35,63,.2)}
.mobile-menu.is-open{transform:translateX(0)}.mobile-head{min-height:76px;padding:14px 18px;display:flex;align-items:center;justify-content:space-between;border-bottom:1px solid var(--line)}
.menu-close{display:inline-flex;font-size:1.75rem}.mobile-body{flex:1;padding:18px;overflow-y:auto}.mobile-top-link,.mobile-menu summary,.mobile-menu details a{min-height:48px;display:flex;align-items:center;border-radius:12px}
.mobile-top-link,.mobile-menu summary{padding:11px 13px;color:var(--ink);font-weight:850}.mobile-menu summary{justify-content:space-between;list-style:none;cursor:pointer}.mobile-menu summary::-webkit-details-marker{display:none}
.mobile-menu summary:after{content:"+";color:var(--blue);font-size:1.25rem}.mobile-menu details[open] summary:after{content:"−"}.mobile-menu details div{padding:0 8px 10px 18px}
.mobile-menu details a{padding:10px 12px}.mobile-menu details a:hover{color:var(--blue-dark);background:var(--blue-faint)}.mobile-foot{padding:18px;border-top:1px solid var(--line)}
.mobile-foot .button{width:100%}.mobile-foot p{margin:10px 0 0;color:var(--muted);font-size:.78rem;text-align:center}

.hero{position:relative;overflow:hidden;padding:72px 0 58px;background:linear-gradient(180deg,#F8FBFF,#fff)}.hero:before{content:"";position:absolute;width:460px;height:460px;top:-260px;right:-100px;border-radius:50%;background:rgba(41,128,254,.13)}
.hero-grid{position:relative;display:grid;grid-template-columns:1.12fr .88fr;align-items:center;gap:56px}.hero-copy{max-width:690px}.hero h1 span{color:var(--blue)}
.hero-tags{display:flex;flex-wrap:wrap;gap:9px;margin-top:28px}.hero-tags span{padding:8px 13px;border:1px solid #CFE1FA;border-radius:999px;background:rgba(255,255,255,.8);color:#3C5578;font-size:.86rem;font-weight:750}
.hero-visual{position:relative;min-height:540px;display:grid;place-items:center}.hero-visual:before{content:"";position:absolute;width:82%;aspect-ratio:1;border-radius:50%;background:radial-gradient(circle,rgba(41,128,254,.18),rgba(41,128,254,0) 68%)}
.hero-visual>img{position:relative;max-height:520px;object-fit:contain;filter:drop-shadow(0 30px 40px rgba(30,87,157,.18))}
.float-note{position:absolute;z-index:2;min-width:170px;padding:13px 15px;border:1px solid var(--line);border-radius:16px;background:rgba(255,255,255,.92);box-shadow:0 14px 38px rgba(30,87,157,.12);color:var(--ink);font-size:.82rem;font-weight:850}
.float-note:before{content:"✓";color:var(--blue);margin-right:7px}.float-note.one{top:12%;left:0}.float-note.two{top:48%;right:-3%}.float-note.three{bottom:8%;left:7%}

.capability-strip{border-top:1px solid var(--line);border-bottom:1px solid var(--line);background:#fff}.capability-grid{display:grid;grid-template-columns:repeat(4,1fr)}
.capability-item{padding:30px 26px;border-right:1px solid var(--line)}.capability-item:last-child{border-right:0}.capability-item h2{font-size:1.05rem;margin-bottom:8px}.capability-item p{margin:0;color:var(--muted);font-size:.9rem;line-height:1.6}
.category-rows{display:grid;gap:14px}.category-row{display:grid;gap:14px}.category-row.one{grid-template-columns:repeat(5,1fr)}.category-row.two{grid-template-columns:repeat(3,1fr)}.category-row.three{grid-template-columns:repeat(5,1fr)}
.category-card{position:relative;min-height:205px;padding:26px;overflow:hidden;border:1px solid var(--line);border-radius:var(--r-md);background:#fff;transition:.22s}
.category-card:hover{transform:translateY(-4px);box-shadow:var(--shadow);border-color:#BFD7F7}.category-card.featured{grid-column:span 2;background:linear-gradient(135deg,#EAF3FF,#F9FCFF)}.category-card.wide{grid-column:span 2}
.category-card:after{content:"";position:absolute;width:90px;height:90px;right:-35px;bottom:-35px;border-radius:50%;background:var(--blue-soft)}
.category-card .number{display:block;color:var(--blue);font-size:.78rem;font-weight:900;letter-spacing:.12em;margin-bottom:18px}.category-card p{color:var(--muted);font-size:.92rem}
.text-link{color:var(--blue-dark);font-weight:850}.text-link:after{content:"→";margin-left:7px}

.feature-shell{display:grid;grid-template-columns:.9fr 1.1fr;gap:34px;align-items:center;padding:38px;border:1px solid #D5E7FC;border-radius:var(--r-lg);background:linear-gradient(135deg,#EAF3FF,#F9FCFF)}
.feature-shell.reverse{grid-template-columns:1.08fr .92fr}.feature-media{min-height:460px;display:grid;place-items:center;padding:18px;border-radius:24px;background:rgba(255,255,255,.72)}
.feature-media img{max-height:430px;object-fit:contain}.feature-copy{padding:16px}.check-list{list-style:none;padding:0;margin:24px 0 0;display:grid;gap:12px}
.check-list li{position:relative;padding-left:31px}.check-list li:before{content:"✓";position:absolute;left:0;top:1px;width:21px;height:21px;display:grid;place-items:center;border-radius:50%;background:var(--blue-soft);color:var(--blue-dark);font-size:.75rem;font-weight:900}
.section-dark .check-list li{color:#E4EEFB}.section-dark .check-list li:before{background:rgba(255,255,255,.14);color:#fff}
.split-grid,.content-grid,.ecosystem-grid{display:grid;grid-template-columns:1fr 1fr;gap:22px}.topic-panel,.content-card,.ecosystem-card{padding:36px;border:1px solid var(--line);border-radius:var(--r-lg);background:#fff}
.topic-panel.offset{margin-top:52px;background:linear-gradient(145deg,#F6FAFF,#EAF3FF)}.dual-feature{display:grid;grid-template-columns:1.12fr .88fr;gap:20px}
.dual-card{padding:36px;border:1px solid var(--line);border-radius:var(--r-lg);background:#fff}.dual-card.primary{min-height:500px;background:linear-gradient(145deg,#F7FBFF,#EAF3FF)}
.inline-image{max-height:230px;object-fit:contain;margin:16px auto 26px}.security-layout{display:grid;grid-template-columns:.9fr 1.1fr;gap:46px;align-items:center}
.security-grid{display:grid;grid-template-columns:1fr 1fr;gap:12px}.security-item{padding:18px;border:1px solid rgba(255,255,255,.14);border-radius:16px;background:rgba(255,255,255,.08)}
.security-item strong{display:block;color:#fff;margin-bottom:5px}.security-item span{color:#C8D8EB;font-size:.88rem}
.swap-layout{display:grid;grid-template-columns:.86fr 1.14fr;gap:34px;align-items:center}.swap-media{padding:30px;border-radius:var(--r-lg);background:linear-gradient(145deg,#EAF3FF,#F9FCFF)}
.swap-media img{max-height:410px;margin:auto;object-fit:contain}.check-board{padding:34px;border:1px solid var(--line);border-radius:var(--r-lg);background:#fff;box-shadow:var(--shadow)}
.check-board-grid{display:grid;grid-template-columns:1fr 1fr;gap:10px;margin-top:22px}.check-board-item{padding:14px 15px;border-radius:13px;background:var(--gray);font-weight:750}.check-board-item:before{content:"✓";color:var(--blue);margin-right:8px}
.steps{display:grid;grid-template-columns:repeat(6,1fr);gap:12px}.step{position:relative;padding:24px 19px;border:1px solid var(--line);border-radius:18px;background:#fff}.step:not(:last-child):after{content:"";position:absolute;top:35px;right:-13px;width:14px;height:2px;background:#BFD7F7}
.step-number{width:38px;height:38px;display:grid;place-items:center;border-radius:12px;background:var(--blue-soft);color:var(--blue-dark);font-weight:900;margin-bottom:18px}.step h3{font-size:1rem}.step p{font-size:.84rem;color:var(--muted)}
.alert-list{display:grid}.alert-item{display:grid;grid-template-columns:105px 1fr auto;gap:20px;align-items:center;padding:20px 22px;border-bottom:1px solid var(--line)}.alert-item:first-child{border-top:1px solid var(--line)}
.alert-date{color:var(--blue-dark);font-size:.82rem;font-weight:850}.alert-item h3{font-size:1.02rem;margin:0 0 3px}.alert-item p{margin:0;color:var(--muted);font-size:.88rem}
.testimonials{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}.quote{min-height:220px;padding:27px;border:1px solid var(--line);border-radius:20px;background:#fff}.quote:nth-child(2),.quote:nth-child(5){background:var(--blue-faint)}
.quote:before{content:"“";display:block;color:var(--blue);font-size:3rem;line-height:.8;margin-bottom:15px}.quote span{color:var(--muted);font-size:.82rem;font-weight:800}
.faq-list{max-width:900px;margin-inline:auto;border-top:1px solid var(--line)}.faq-item{border-bottom:1px solid var(--line)}.faq-item button{width:100%;min-height:72px;padding:17px 4px;display:flex;align-items:center;justify-content:space-between;gap:20px;border:0;background:transparent;text-align:left;color:var(--ink);font-weight:850;cursor:pointer}
.faq-item button:after{content:"+";width:32px;height:32px;flex:0 0 32px;display:grid;place-items:center;border-radius:50%;background:var(--blue-soft);color:var(--blue-dark);font-size:1.25rem}.faq-item button[aria-expanded=true]:after{content:"−"}
.faq-answer{display:none;padding:0 46px 24px 4px;color:var(--muted)}.faq-item.is-open .faq-answer{display:block}
.cta{padding:72px 32px;text-align:center;border-radius:var(--r-lg);color:#fff;background:radial-gradient(circle at 20% 20%,rgba(255,255,255,.18),transparent 30%),linear-gradient(135deg,var(--blue),var(--blue-dark))}
.cta h2{color:#fff}.cta p{max-width:670px;margin-inline:auto;color:#E8F1FF}

.page-hero{padding:72px 0 58px;background:linear-gradient(180deg,#F5F9FF,#fff)}.page-hero-grid{display:grid;grid-template-columns:1.08fr .92fr;align-items:center;gap:50px}
.page-hero h1{font-size:clamp(2.5rem,5vw,4.7rem)}.page-hero-media{min-height:390px;display:grid;place-items:center;border-radius:var(--r-lg);background:linear-gradient(145deg,#EAF3FF,#F9FCFF)}
.page-hero-media img{max-height:360px;object-fit:contain}.breadcrumbs{margin-bottom:20px;color:var(--muted);font-size:.86rem}.breadcrumbs a{color:var(--blue-dark)}
.info-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}.info-card{padding:26px;border:1px solid var(--line);border-radius:19px;background:#fff}.info-card h2,.info-card h3{font-size:1.16rem}.info-card p{color:var(--muted);font-size:.92rem}
.numbered-list{counter-reset:item;list-style:none;padding:0;margin:0;display:grid;gap:15px}.numbered-list li{position:relative;padding:20px 20px 20px 64px;border:1px solid var(--line);border-radius:16px;background:#fff}
.numbered-list li:before{counter-increment:item;content:counter(item);position:absolute;left:18px;top:18px;width:30px;height:30px;display:grid;place-items:center;border-radius:9px;background:var(--blue-soft);color:var(--blue-dark);font-weight:900}
.notice{padding:24px 26px;border-left:4px solid var(--blue);border-radius:0 16px 16px 0;background:var(--blue-faint)}.notice strong{display:block;color:var(--ink);margin-bottom:7px}
.table-wrap{overflow-x:auto;border:1px solid var(--line);border-radius:18px}.compare-table{width:100%;min-width:700px;border-collapse:collapse;background:#fff}.compare-table th,.compare-table td{padding:17px 18px;text-align:left;border-bottom:1px solid var(--line)}.compare-table th{color:var(--ink);background:var(--blue-faint)}
.article-prose{max-width:860px}.article-prose h2{margin-top:44px;font-size:1.8rem}.contact-options{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}.contact-card{min-height:230px;padding:28px;border:1px solid var(--line);border-radius:20px;background:#fff}

.site-footer{color:#C9D6E8;background:var(--footer)}.footer-grid{display:grid;grid-template-columns:1.55fr repeat(4,1fr);gap:34px;padding-top:64px;padding-bottom:54px}.footer-brand p{max-width:360px;color:#9EB1C9;font-size:.9rem}
.site-footer .brand img{filter:brightness(0) invert(1)}.site-footer h2{color:#fff;font-size:.95rem;margin-bottom:18px}.site-footer a:not(.brand){display:block;color:#AFC0D5;font-size:.88rem;margin-bottom:10px}.site-footer a:hover{color:#fff}
.footer-bottom{border-top:1px solid rgba(255,255,255,.1)}.footer-bottom .container{min-height:70px;display:flex;align-items:center;justify-content:space-between;gap:24px}.footer-bottom p{margin:0;color:#8FA5BF;font-size:.78rem}

@media(max-width:1180px){.desktop-nav{display:none}.nav-actions{margin-left:auto}.menu-button{display:inline-flex}.steps{grid-template-columns:repeat(3,1fr)}.step:nth-child(3):after{display:none}.footer-grid{grid-template-columns:1.3fr repeat(2,1fr)}}
@media(max-width:900px){.section{padding:76px 0}.hero-grid,.page-hero-grid,.feature-shell,.feature-shell.reverse,.security-layout,.swap-layout,.content-grid{grid-template-columns:1fr}.hero-visual{min-height:440px}.hero-visual>img{max-height:430px}
.capability-grid{grid-template-columns:1fr 1fr}.capability-item:nth-child(2){border-right:0}.capability-item:nth-child(-n+2){border-bottom:1px solid var(--line)}
.category-row.one,.category-row.two,.category-row.three{grid-template-columns:1fr 1fr}.category-card.featured,.category-card.wide{grid-column:span 1}.split-grid,.dual-feature,.ecosystem-grid{grid-template-columns:1fr}.topic-panel.offset{margin-top:0}
.security-grid,.info-grid{grid-template-columns:1fr 1fr}.testimonials{grid-template-columns:1fr 1fr}.footer-grid{grid-template-columns:1fr 1fr}.footer-brand{grid-column:1/-1}}
@media(max-width:640px){.container{width:min(calc(100% - 28px),var(--container))}.section{padding:62px 0}.nav-shell{width:calc(100% - 22px);min-height:66px;gap:10px}.brand img{width:128px}.nav-actions{gap:6px}.nav-actions .button-compact{padding:9px 13px;font-size:.82rem}.menu-button{width:42px;height:42px}
.hero{padding-top:50px}.hero-grid{gap:28px}h1{font-size:clamp(2.35rem,12vw,3.7rem)}h2{font-size:clamp(1.8rem,9vw,2.55rem)}.button-row{flex-direction:column;align-items:stretch}.button-row .button{width:100%}
.hero-visual{min-height:390px;padding:20px 0;display:flex;flex-wrap:wrap;justify-content:center}.hero-visual>img{width:100%;order:-1;max-height:360px}.float-note{position:relative;inset:auto!important;display:inline-flex;min-width:0;margin:5px;font-size:.76rem}
.capability-grid,.category-row.one,.category-row.two,.category-row.three,.security-grid,.check-board-grid,.steps,.testimonials,.info-grid,.contact-options{grid-template-columns:1fr}.capability-item{border-right:0;border-bottom:1px solid var(--line)}.capability-item:last-child{border-bottom:0}
.feature-shell,.topic-panel,.dual-card,.ecosystem-card,.content-card{padding:25px}.feature-media{min-height:340px}.feature-media img{max-height:320px}.step:not(:last-child):after{display:none}.alert-item{grid-template-columns:1fr;gap:6px}.page-hero{padding:50px 0 42px}.page-hero-media{min-height:310px}.page-hero-media img{max-height:290px}.footer-grid{grid-template-columns:1fr}.footer-brand{grid-column:auto}.footer-bottom .container{padding:18px 0;flex-direction:column;align-items:flex-start;gap:6px}}