:root {
  --brand:#2980FE; --brand-dark:#1767D6; --brand-soft:#EAF3FF; --surface:#FFFFFF;
  --surface-2:#F5F8FD; --surface-3:#F7F9FC; --text:#172033; --body:#465266;
  --muted:#718096; --line:#DCE6F2; --footer:#10233F; --shadow:0 18px 50px rgba(28,72,128,.10);
  --radius:24px; --container:1180px;
}
*{box-sizing:border-box} html{scroll-behavior:smooth} body{margin:0;font-family:Arial,"Microsoft JhengHei","PingFang TC",sans-serif;color:var(--text);background:#fff;line-height:1.7;overflow-x:hidden}
a{color:inherit;text-decoration:none} img{max-width:100%;height:auto;display:block} button{font:inherit}.skip-link{position:fixed;left:12px;top:-100px;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(14px);border-bottom:1px solid rgba(220,230,242,.8)}.header-inner{width:min(calc(100% - 40px),var(--container));height:78px;margin:auto;display:flex;align-items:center;gap:28px}.brand{flex:0 0 auto}.brand img{width:176px}.desktop-nav{display:flex;align-items:center;justify-content:center;gap:2px;min-width:0;flex:1;height:100%}.nav-link{display:flex;align-items:center;height:100%;padding:0 13px;font-size:14px;font-weight:700;color:#33425a;white-space:nowrap;position:relative}.nav-link:after{content:"";position:absolute;left:13px;right:13px;bottom:17px;height:2px;background:var(--brand);transform:scaleX(0);transition:.2s}.nav-link:hover,.nav-link:focus,.nav-link.is-active{color:var(--brand)}.nav-link:hover:after,.nav-link:focus:after,.nav-link.is-active:after{transform:scaleX(1)}.nav-group{height:100%;position:relative;display:flex}.mega-menu{position:absolute;top:68px;left:50%;transform:translate(-50%,10px);width:640px;padding:18px;display:grid;grid-template-columns:1.35fr 1fr 1fr;gap:10px;background:#fff;border:1px solid var(--line);border-radius:22px;box-shadow:0 24px 60px rgba(18,48,88,.16);opacity:0;visibility:hidden;pointer-events:none;transition:.2s}.nav-group:hover .mega-menu,.nav-group:focus-within .mega-menu{opacity:1;visibility:visible;pointer-events:auto;transform:translate(-50%,0)}.mega-menu a,.mega-intro{padding:14px;border-radius:15px}.mega-menu a:hover,.mega-menu a:focus{background:var(--surface-2)}.mega-menu b,.mega-intro strong{display:block;font-size:14px}.mega-menu span{display:block;color:var(--muted);font-size:12px;line-height:1.5;margin-top:3px}.mega-intro{grid-row:span 2;background:linear-gradient(145deg,#eaf3ff,#f7fbff);border:1px solid #d9e9ff}.mega-intro strong{color:var(--brand);font-size:18px}.header-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:48px;padding:0 24px;border-radius:14px;background:linear-gradient(135deg,var(--brand),var(--brand-dark));color:#fff;font-weight:800;box-shadow:0 12px 28px rgba(41,128,254,.25);transition:transform .2s,box-shadow .2s}.download-btn:hover,.download-btn:focus{transform:translateY(-2px);box-shadow:0 16px 34px rgba(41,128,254,.31)}.download-btn.compact{min-height:44px;padding:0 19px;font-size:14px}.menu-toggle{width:44px;height:44px;border:1px solid var(--line);border-radius:13px;background:#fff;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:5px;cursor:pointer}.menu-toggle span{display:block;width:18px;height:2px;background:var(--text);border-radius:2px}.menu-overlay{position:fixed;inset:0;z-index:1090;background:rgba(9,25,48,.42);opacity:0;transition:.22s}.menu-overlay.is-visible{opacity:1}.mobile-menu{position:fixed;z-index:1100;top:0;right:0;width:min(430px,92vw);height:100dvh;background:#fff;transform:translateX(105%);transition:.25s;overflow-y:auto;padding:20px 20px 30px;box-shadow:-24px 0 60px rgba(14,39,74,.2)}.mobile-menu.is-open{transform:translateX(0)}.mobile-menu-head{display:flex;align-items:center;justify-content:space-between;padding-bottom:17px;border-bottom:1px solid var(--line)}.mobile-menu-head img{width:158px}.menu-close{width:44px;height:44px;border:0;border-radius:13px;background:var(--surface-2);font-size:30px;cursor:pointer}.mobile-home{display:flex;align-items:center;min-height:52px;font-weight:800;border-bottom:1px solid var(--line)}.mobile-nav-group{border-bottom:1px solid var(--line)}.mobile-nav-group>button{width:100%;min-height:54px;display:flex;align-items:center;justify-content:space-between;border:0;background:#fff;padding:0;font-weight:800;cursor:pointer}.mobile-nav-group>div{display:none;padding:0 0 13px}.mobile-nav-group.is-open>div{display:grid;grid-template-columns:1fr 1fr;gap:8px}.mobile-nav-group a{display:flex;align-items:center;min-height:44px;padding:8px 12px;border-radius:11px;background:var(--surface-2);font-size:14px}.mobile-download{width:100%;margin-top:20px}.menu-open{overflow:hidden}
main{min-height:60vh}.container{width:min(calc(100% - 40px),var(--container));margin-inline:auto}.section{padding:92px 0}.section-sm{padding:62px 0}.section-soft{background:var(--surface-2)}.section-blue{background:linear-gradient(180deg,#f4f9ff,#eaf3ff)}.section-dark{background:linear-gradient(135deg,#10233f,#174b85);color:#fff}.eyebrow{display:inline-flex;align-items:center;gap:8px;color:var(--brand);font-size:13px;font-weight:800;letter-spacing:.08em;text-transform:uppercase}.eyebrow:before{content:"";width:28px;height:2px;background:var(--brand)}.section-title{font-size:clamp(30px,4vw,52px);line-height:1.18;margin:14px 0 18px;letter-spacing:-.03em}.section-lead{max-width:760px;color:var(--body);font-size:18px}.section-dark .section-lead,.section-dark p,.section-dark li{color:#dce9fa}.section-head{display:flex;align-items:end;justify-content:space-between;gap:32px;margin-bottom:38px}.section-head p{max-width:630px;color:var(--body);margin:0}.btn-row{display:flex;flex-wrap:wrap;gap:12px;margin-top:28px}.ghost-btn,.text-btn{display:inline-flex;align-items:center;justify-content:center;min-height:48px;padding:0 22px;border-radius:14px;border:1px solid var(--line);font-weight:800;background:#fff;color:var(--text)}.text-btn{min-height:auto;padding:0;border:0;background:transparent;color:var(--brand)}.ghost-btn:hover,.ghost-btn:focus{border-color:var(--brand);color:var(--brand)}
.hero{position:relative;overflow:hidden;background:radial-gradient(circle at 85% 15%,rgba(41,128,254,.18),transparent 34%),linear-gradient(180deg,#fff,#f5f9ff)}.hero:before{content:"";position:absolute;width:360px;height:360px;border:1px solid rgba(41,128,254,.15);border-radius:50%;right:-120px;top:60px}.hero-grid{min-height:680px;display:grid;grid-template-columns:1.12fr .88fr;align-items:center;gap:60px;padding:76px 0}.hero-copy h1{font-size:clamp(44px,6.2vw,76px);line-height:1.04;letter-spacing:-.05em;margin:18px 0 24px;max-width:750px}.hero-copy p{font-size:18px;color:var(--body);max-width:720px}.tag-list{display:flex;flex-wrap:wrap;gap:10px;margin-top:24px}.tag{padding:8px 13px;border-radius:999px;background:#fff;border:1px solid #d8e7fb;color:#315074;font-size:13px;font-weight:700}.hero-visual{position:relative;min-height:520px;display:flex;align-items:center;justify-content:center}.hero-visual:before{content:"";position:absolute;width:430px;height:430px;border-radius:50%;background:linear-gradient(145deg,#d9ebff,#fff);box-shadow:inset 0 0 0 1px #d8e8fa}.hero-visual img{position:relative;z-index:2;max-height:500px;object-fit:contain;filter:drop-shadow(0 28px 34px rgba(29,72,127,.18))}.float-note{position:absolute;z-index:3;padding:13px 16px;border-radius:14px;background:rgba(255,255,255,.92);border:1px solid #dce9f8;box-shadow:0 14px 32px rgba(26,67,119,.13);font-size:13px;font-weight:800}.float-note.n1{left:0;top:85px}.float-note.n2{right:0;top:210px}.float-note.n3{left:24px;bottom:80px}.capability-strip{margin-top:-30px;position:relative;z-index:4}.capability-grid{display:grid;grid-template-columns:repeat(4,1fr);background:#fff;border:1px solid var(--line);border-radius:22px;box-shadow:var(--shadow);overflow:hidden}.capability-item{padding:26px 24px;border-right:1px solid var(--line)}.capability-item:last-child{border:0}.capability-item strong{display:block;margin-bottom:7px}.capability-item p{margin:0;color:var(--muted);font-size:14px}
.category-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}.category-card{position:relative;min-height:230px;padding:28px;border:1px solid var(--line);border-radius:24px;background:#fff;overflow:hidden;transition:.2s}.category-card:after{content:"";position:absolute;width:90px;height:90px;border-radius:50%;background:var(--brand-soft);right:-30px;bottom:-30px}.category-card:hover{transform:translateY(-4px);box-shadow:var(--shadow);border-color:#c9def7}.category-card.featured{grid-column:span 2;background:linear-gradient(145deg,#2980fe,#1767d6);color:#fff}.category-card.wide{grid-column:span 2;background:linear-gradient(145deg,#f2f8ff,#fff)}.category-card h3{margin:0 0 12px;font-size:22px}.category-card p{margin:0 0 18px;color:var(--body)}.category-card.featured p,.category-card.featured a{color:#eaf3ff}.category-card a{position:relative;z-index:2;color:var(--brand);font-weight:800}
.feature-grid{display:grid;grid-template-columns:.9fr 1.1fr;gap:54px;align-items:center}.feature-grid.reverse{grid-template-columns:1.1fr .9fr}.feature-image{background:linear-gradient(145deg,#dcecff,#fff);border:1px solid #d7e7fa;border-radius:30px;min-height:480px;display:flex;align-items:center;justify-content:center;padding:34px}.feature-image img{max-height:430px;object-fit:contain}.content-panel{background:#fff;border:1px solid var(--line);border-radius:28px;padding:42px;box-shadow:0 18px 50px rgba(31,79,139,.08)}.check-list{display:grid;gap:12px;margin:25px 0 0;padding:0;list-style:none}.check-list li{position:relative;padding-left:30px;color:var(--body)}.check-list li:before{content:"✓";position:absolute;left:0;top:2px;width:20px;height:20px;border-radius:50%;display:grid;place-items:center;background:var(--brand-soft);color:var(--brand);font-size:12px;font-weight:900}.section-dark .check-list li:before{background:rgba(255,255,255,.15);color:#fff}.split-grid{display:grid;grid-template-columns:1fr 1fr;gap:24px}.topic-panel{padding:36px;border-radius:28px;background:#fff;border:1px solid var(--line)}.topic-panel.offset{margin-top:60px}.topic-panel h3{font-size:28px;margin:0 0 14px}.topic-panel p{color:var(--body)}.topic-panel.accent{background:linear-gradient(145deg,#eaf3ff,#fff)}.topic-panel.image-panel{padding:0;overflow:hidden}.topic-panel.image-panel .panel-copy{padding:32px}.topic-panel.image-panel img{width:100%;height:280px;object-fit:contain;background:linear-gradient(145deg,#f0f7ff,#fff);padding:20px}.security-grid{display:grid;grid-template-columns:1fr 1fr;gap:50px;align-items:center}.security-callout{display:grid;grid-template-columns:1fr 1fr;gap:14px}.security-callout div{padding:22px;border-radius:18px;background:rgba(255,255,255,.09);border:1px solid rgba(255,255,255,.16)}.security-callout strong{display:block;margin-bottom:7px}.swap-grid{display:grid;grid-template-columns:.9fr 1.1fr;gap:48px;align-items:center}.swap-visual{padding:30px;border-radius:28px;background:#fff;border:1px solid var(--line)}.swap-visual img{max-height:390px;margin:auto;object-fit:contain}.preflight{display:grid;grid-template-columns:1fr 1fr;gap:12px;margin-top:22px}.preflight div{padding:15px 16px;border-radius:14px;background:var(--surface-2);border:1px solid var(--line);font-weight:700}.steps{display:grid;grid-template-columns:repeat(6,1fr);gap:0;position:relative}.steps:before{content:"";position:absolute;left:6%;right:6%;top:28px;height:2px;background:#cfe0f5}.step{position:relative;padding:0 14px;text-align:center}.step-number{position:relative;z-index:2;width:56px;height:56px;border-radius:50%;display:grid;place-items:center;margin:0 auto 16px;background:var(--brand);color:#fff;font-weight:900;box-shadow:0 8px 22px rgba(41,128,254,.25)}.step h3{font-size:16px;line-height:1.4}.step p{font-size:13px;color:var(--muted)}.step a{font-size:13px;color:var(--brand);font-weight:800}.timeline{display:grid;gap:0;border-left:2px solid #d7e5f5;margin-left:10px}.timeline-item{position:relative;padding:0 0 30px 30px}.timeline-item:before{content:"";position:absolute;left:-8px;top:7px;width:14px;height:14px;border-radius:50%;background:var(--brand);box-shadow:0 0 0 5px #eaf3ff}.timeline-item small{color:var(--brand);font-weight:800}.timeline-item h3{margin:4px 0 5px}.timeline-item p{margin:0;color:var(--body)}.reviews{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}.review{padding:25px;border-radius:22px;background:#fff;border:1px solid var(--line)}.review p{margin:0;color:var(--body)}.review strong{display:block;margin-top:15px;color:var(--brand)}.faq-list{display:grid;gap:12px}.faq-item{border:1px solid var(--line);border-radius:18px;background:#fff;overflow:hidden}.faq-item>button{width:100%;min-height:64px;padding:17px 21px;display:flex;align-items:center;justify-content:space-between;gap:20px;text-align:left;border:0;background:#fff;color:var(--text);font-weight:800;cursor:pointer}.faq-item>button:after{content:"＋";font-size:22px;color:var(--brand)}.faq-item.is-open>button:after{content:"－"}.faq-answer{display:none;padding:0 21px 20px;color:var(--body)}.faq-item.is-open .faq-answer{display:block}.cta{padding:54px;border-radius:30px;background:linear-gradient(135deg,#2980fe,#1767d6);color:#fff;text-align:center;overflow:hidden;position:relative}.cta:before,.cta:after{content:"";position:absolute;border:1px solid rgba(255,255,255,.2);border-radius:50%}.cta:before{width:260px;height:260px;left:-80px;top:-120px}.cta:after{width:180px;height:180px;right:-50px;bottom:-90px}.cta h2{font-size:clamp(30px,4vw,48px);margin:0 0 12px;position:relative}.cta p{max-width:760px;margin:0 auto;color:#eaf3ff;position:relative}.cta .download-btn{margin-top:26px;background:#fff;color:var(--brand);position:relative}
.inner-hero{background:radial-gradient(circle at 82% 20%,rgba(41,128,254,.18),transparent 28%),linear-gradient(180deg,#fff,#f4f8fd);padding:92px 0 76px}.inner-hero-grid{display:grid;grid-template-columns:1.15fr .85fr;gap:50px;align-items:center}.inner-hero h1{font-size:clamp(42px,5.5vw,68px);line-height:1.08;letter-spacing:-.04em;margin:15px 0 20px}.inner-hero p{color:var(--body);font-size:18px;max-width:760px}.inner-visual{min-height:350px;border-radius:30px;background:linear-gradient(145deg,#eaf3ff,#fff);border:1px solid #d7e7fa;display:flex;align-items:center;justify-content:center;padding:30px}.inner-visual img{max-height:320px;object-fit:contain}.stat-row{display:grid;grid-template-columns:repeat(3,1fr);gap:15px;margin-top:28px}.stat-row div{padding:16px;border-radius:15px;background:#fff;border:1px solid var(--line)}.stat-row strong{display:block}.stat-row span{font-size:13px;color:var(--muted)}.content-grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}.info-card{padding:28px;border-radius:22px;background:#fff;border:1px solid var(--line)}.info-card h2,.info-card h3{margin-top:0}.info-card p{color:var(--body)}.info-card.accent{background:linear-gradient(145deg,#eaf3ff,#fff)}.notice{padding:26px 28px;border-radius:20px;border-left:4px solid var(--brand);background:#f4f9ff}.notice strong{display:block;margin-bottom:7px}.data-table{width:100%;border-collapse:separate;border-spacing:0;overflow:hidden;border:1px solid var(--line);border-radius:18px;background:#fff}.data-table th,.data-table td{padding:16px 18px;text-align:left;border-bottom:1px solid var(--line);vertical-align:top}.data-table th{background:var(--surface-2)}.data-table tr:last-child td{border-bottom:0}.article-copy{max-width:850px}.article-copy h2{font-size:30px;margin-top:42px}.article-copy p,.article-copy li{color:var(--body)}.article-copy ul,.article-copy ol{padding-left:22px}.support-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:18px}.support-item{padding:28px;border-radius:22px;background:#fff;border:1px solid var(--line)}.support-item h2{font-size:22px;margin:0 0 10px}.support-item p{color:var(--body)}
.site-footer{background:var(--footer);color:#fff;padding:66px 0 0}.footer-grid{width:min(calc(100% - 40px),var(--container));margin:auto;display:grid;grid-template-columns:1.6fr repeat(3,1fr);gap:44px}.footer-brand img{width:180px;filter:brightness(0) invert(1)}.footer-brand p{color:#bdcbe0;max-width:430px}.footer-grid h2{font-size:15px;margin:0 0 14px}.footer-grid a{display:block;color:#bdcbe0;margin:8px 0;font-size:14px}.footer-grid a:hover{color:#fff}.footer-note{width:min(calc(100% - 40px),var(--container));margin:45px auto 0;padding:20px 0;border-top:1px solid rgba(255,255,255,.12);display:flex;justify-content:space-between;gap:30px;color:#95a8c4;font-size:13px}
@media (min-width:1101px){.menu-toggle{display:none}}
@media (max-width:1100px){.desktop-nav{display:none}.header-inner{height:70px}.hero-grid{grid-template-columns:1fr;min-height:auto;padding:70px 0 90px}.hero-copy{text-align:center}.hero-copy p{margin-inline:auto}.btn-row,.tag-list{justify-content:center}.hero-visual{min-height:470px}.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-grid{grid-template-columns:1fr 1fr}.category-card.featured,.category-card.wide{grid-column:span 1}.feature-grid,.feature-grid.reverse,.security-grid,.swap-grid,.inner-hero-grid{grid-template-columns:1fr}.feature-grid.reverse .feature-image{order:0}.feature-grid.reverse .content-panel{order:1}.steps{grid-template-columns:repeat(3,1fr);gap:28px 0}.steps:before{display:none}.reviews{grid-template-columns:1fr 1fr}.footer-grid{grid-template-columns:1.4fr 1fr 1fr}.footer-grid>div:last-child{grid-column:2/4}.content-grid-3{grid-template-columns:1fr 1fr}.inner-visual{min-height:300px}}
@media (max-width:720px){.header-inner,.container,.footer-grid,.footer-note{width:min(calc(100% - 28px),var(--container))}.brand img{width:142px}.download-btn.compact{padding:0 13px;min-height:42px}.header-actions{gap:7px}.section{padding:68px 0}.section-sm{padding:48px 0}.section-head{display:block}.section-title{font-size:34px}.hero-grid{padding:54px 0 72px;gap:24px}.hero-copy{text-align:left}.hero-copy h1{font-size:46px}.hero-copy p{font-size:16px}.hero-copy p{margin-inline:0}.hero-copy .btn-row,.hero-copy .tag-list{justify-content:flex-start}.hero-visual{min-height:390px}.hero-visual:before{width:320px;height:320px}.hero-visual img{max-height:370px}.float-note{font-size:11px;padding:9px 11px}.float-note.n1{left:0;top:50px}.float-note.n2{right:0;top:170px}.float-note.n3{left:8px;bottom:55px}.capability-strip{margin-top:-18px}.capability-grid{grid-template-columns:1fr}.capability-item{border-right:0;border-bottom:1px solid var(--line)!important}.capability-item:last-child{border-bottom:0!important}.category-grid,.split-grid,.security-callout,.preflight,.reviews,.content-grid-3,.support-grid,.stat-row{grid-template-columns:1fr}.category-card,.category-card.featured,.category-card.wide{grid-column:auto;min-height:0}.feature-grid,.feature-grid.reverse,.security-grid,.swap-grid{gap:28px}.feature-image{min-height:340px;padding:22px}.feature-image img{max-height:320px}.content-panel,.topic-panel{padding:26px}.topic-panel.offset{margin-top:0}.steps{grid-template-columns:1fr;gap:20px}.step{text-align:left;padding-left:78px;min-height:70px}.step-number{position:absolute;left:0;top:0}.step h3{margin:0 0 4px}.step p{margin:0 0 3px}.cta{padding:42px 22px}.inner-hero{padding:68px 0 54px}.inner-hero h1{font-size:42px}.inner-hero p{font-size:16px}.inner-visual{min-height:260px}.data-table{display:block;overflow-x:auto;white-space:nowrap}.footer-grid{grid-template-columns:1fr 1fr;gap:30px}.footer-brand{grid-column:1/3}.footer-grid>div:last-child{grid-column:auto}.footer-note{display:block}.footer-note span{display:block;margin:7px 0}.site-footer{padding-top:52px}}
@media (max-width:480px){.brand img{width:126px}.download-btn.compact{font-size:13px;padding:0 11px}.menu-toggle{width:42px;height:42px}.hero-copy h1{font-size:40px}.hero-visual{min-height:340px}.hero-visual:before{width:280px;height:280px}.hero-visual img{max-height:320px}.mobile-nav-group.is-open>div{grid-template-columns:1fr}.footer-grid{grid-template-columns:1fr}.footer-brand,.footer-grid>div:last-child{grid-column:auto}}