:root{
  --brand:#2980FE;
  --brand-deep:#1767D6;
  --brand-soft:#EAF3FF;
  --surface:#FFFFFF;
  --surface-soft:#F5F8FD;
  --surface-muted:#F7F9FC;
  --text:#172033;
  --body:#465266;
  --muted:#718096;
  --border:#DCE6F2;
  --footer:#10233F;
  --shadow:0 18px 50px rgba(41,128,254,.10);
  --radius-lg:28px;
  --radius-md:20px;
  --radius-sm:14px;
  --container:min(1200px, calc(100% - 40px));
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang TC","Microsoft JhengHei",Arial,sans-serif;color:var(--text);background:#fff;line-height:1.75;overflow-x:hidden}
a{color:inherit;text-decoration:none}
img{display:block;max-width:100%;height:auto}
button,input,textarea{font:inherit}
button{color:inherit}
.skip-link{position:fixed;left:16px;top:-80px;z-index:3000;background:#fff;padding:10px 14px;border-radius:10px;box-shadow:var(--shadow)}
.skip-link:focus{top:16px}
.site-header{position:sticky;top:0;z-index:1000;background:rgba(255,255,255,.92);backdrop-filter:blur(18px);border-bottom:1px solid rgba(220,230,242,.8)}
.header-shell{width:var(--container);height:78px;margin:auto;display:flex;align-items:center;gap:24px}
.brand{display:flex;align-items:center;flex:0 0 auto}
.brand img{width:168px;max-height:46px;object-fit:contain}
.desktop-nav{display:flex;align-items:center;justify-content:center;gap:4px;flex:1;min-width:0;white-space:nowrap}
.nav-link,.nav-trigger{border:0;background:transparent;padding:12px 11px;border-radius:12px;font-weight:700;font-size:14px;cursor:pointer;transition:.2s}
.nav-link:hover,.nav-trigger:hover,.nav-link.is-active,.nav-trigger.is-active,.nav-group.is-open .nav-trigger{color:var(--brand);background:var(--brand-soft)}
.nav-group{position:relative}
.mega-menu{position:absolute;left:50%;top:calc(100% + 16px);transform:translate(-50%,8px);width:690px;padding:24px;border:1px solid var(--border);border-radius:22px;background:#fff;box-shadow:0 28px 80px rgba(23,32,51,.16);opacity:0;visibility:hidden;pointer-events:none;transition:.18s;display:grid;grid-template-columns:180px 1fr;gap:22px}
.nav-group:hover .mega-menu,.nav-group:focus-within .mega-menu,.nav-group.is-open .mega-menu{opacity:1;visibility:visible;pointer-events:auto;transform:translate(-50%,0)}
.mega-intro{padding:18px;border-radius:16px;background:linear-gradient(145deg,var(--brand-soft),#fff)}
.mega-intro strong{display:block;font-size:20px;margin-bottom:8px;color:var(--brand-deep)}
.mega-intro span{display:block;font-size:13px;color:var(--body);line-height:1.6}
.mega-links{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:10px}
.mega-links a{padding:12px 14px;border-radius:14px;border:1px solid transparent}
.mega-links a:hover,.mega-links a:focus{border-color:var(--border);background:var(--surface-soft)}
.mega-links b{display:block;font-size:14px}
.mega-links span{display:block;color:var(--muted);font-size:12px;line-height:1.5;margin-top:3px}
.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:44px;padding:0 20px;border-radius:999px;background:linear-gradient(135deg,var(--brand),var(--brand-deep));color:#fff;font-weight:800;box-shadow:0 12px 24px rgba(41,128,254,.24);transition:.2s}
.download-btn:hover{transform:translateY(-1px);box-shadow:0 16px 30px rgba(41,128,254,.30)}
.more-button{width:46px;height:46px;border:1px solid var(--border);border-radius:14px;background:#fff;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:4px;cursor:pointer}
.more-button span{width:19px;height:2px;background:var(--text);border-radius:2px}
.menu-overlay{position:fixed;inset:0;z-index:1400;background:rgba(16,35,63,.46);opacity:0;transition:.22s}
.menu-overlay.is-visible{opacity:1}
.mobile-menu{position:fixed;top:0;right:0;z-index:1500;width:min(420px,92vw);height:100dvh;background:#fff;transform:translateX(104%);transition:.26s;box-shadow:-22px 0 70px rgba(16,35,63,.22);padding:22px;overflow-y:auto}
.mobile-menu.is-open{transform:translateX(0)}
.mobile-menu-head{display:flex;align-items:center;justify-content:space-between;padding-bottom:18px;border-bottom:1px solid var(--border)}
.menu-close{width:46px;height:46px;border:1px solid var(--border);border-radius:14px;background:#fff;font-size:28px;cursor:pointer}
.mobile-menu nav{padding:14px 0}
.mobile-home,.mobile-group>button{width:100%;min-height:52px;padding:0 8px;display:flex;align-items:center;justify-content:space-between;border:0;background:transparent;font-weight:800;text-align:left;cursor:pointer;border-bottom:1px solid var(--border)}
.mobile-group>button::after{content:'+';font-size:22px;color:var(--brand)}
.mobile-group.is-open>button::after{content:'−'}
.mobile-group>div{display:none;padding:8px 0 10px 14px}
.mobile-group.is-open>div{display:grid}
.mobile-group>div a{min-height:46px;display:flex;align-items:center;color:var(--body)}
.mobile-download{width:100%;margin-top:8px}
.menu-open{overflow:hidden}
main{display:block}
.section{padding:92px 0}
.section-tight{padding:64px 0}
.container{width:var(--container);margin:auto}
.eyebrow{display:inline-flex;align-items:center;gap:8px;color:var(--brand-deep);font-size:13px;font-weight:900;letter-spacing:.08em;text-transform:uppercase}
.eyebrow::before{content:'';width:28px;height:2px;background:var(--brand);border-radius:2px}
h1,h2,h3,p{margin-top:0}
h1{font-size:clamp(42px,6vw,76px);line-height:1.08;letter-spacing:-.045em;margin-bottom:24px}
h2{font-size:clamp(30px,4vw,52px);line-height:1.16;letter-spacing:-.035em;margin-bottom:18px}
h3{font-size:22px;line-height:1.35;margin-bottom:10px}
p{color:var(--body)}
.lead{font-size:clamp(18px,2vw,22px);line-height:1.8;color:var(--body)}
.section-head{max-width:760px;margin-bottom:42px}
.section-head.center{text-align:center;margin-left:auto;margin-right:auto}
.hero{position:relative;overflow:hidden;background:radial-gradient(circle at 85% 20%,rgba(41,128,254,.18),transparent 32%),linear-gradient(180deg,#fff 0%,#F5F8FD 100%);padding:82px 0 60px}
.hero::after{content:'';position:absolute;width:420px;height:420px;right:-190px;bottom:-260px;border:1px solid rgba(41,128,254,.20);border-radius:50%}
.hero-grid{display:grid;grid-template-columns:minmax(0,1.12fr) minmax(380px,.88fr);gap:50px;align-items:center}
.hero-copy{position:relative;z-index:2}
.hero-copy .lead{max-width:760px}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin:28px 0 22px}
.secondary-btn,.text-link{display:inline-flex;align-items:center;justify-content:center;min-height:44px;padding:0 18px;border-radius:999px;border:1px solid var(--border);background:#fff;color:var(--brand-deep);font-weight:800}
.text-link{padding:0;border:0;background:transparent;min-height:auto}
.tags{display:flex;flex-wrap:wrap;gap:10px}
.tag{padding:7px 12px;border-radius:999px;background:#fff;border:1px solid var(--border);font-size:13px;color:var(--body)}
.hero-visual{position:relative;min-height:520px;display:flex;align-items:center;justify-content:center}
.hero-visual>img{max-height:500px;object-fit:contain;filter:drop-shadow(0 30px 50px rgba(16,35,63,.18))}
.float-card{position:absolute;padding:13px 16px;border-radius:16px;background:rgba(255,255,255,.92);border:1px solid rgba(220,230,242,.95);box-shadow:var(--shadow);font-size:13px;font-weight:800;color:var(--text)}
.float-card.one{left:0;top:18%}.float-card.two{right:0;top:42%}.float-card.three{left:8%;bottom:10%}
.capability-strip{position:relative;margin-top:-6px}
.capability-grid{display:grid;grid-template-columns:repeat(4,1fr);background:#fff;border:1px solid var(--border);border-radius:24px;box-shadow:var(--shadow);overflow:hidden}
.capability-item{padding:26px;border-right:1px solid var(--border)}
.capability-item:last-child{border-right:0}
.capability-item strong{display:block;font-size:17px;margin-bottom:7px}
.capability-item p{font-size:14px;margin:0}
.category-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}
.category-card{min-height:200px;padding:28px;border-radius:24px;border:1px solid var(--border);background:#fff;display:flex;flex-direction:column;justify-content:space-between;transition:.2s}
.category-card:hover{transform:translateY(-4px);box-shadow:var(--shadow);border-color:#BBD6FA}
.category-card.featured{grid-column:span 2;background:linear-gradient(145deg,var(--brand-soft),#fff)}
.category-card.wide{grid-column:span 2}
.category-card .number{font-size:13px;color:var(--brand);font-weight:900}
.category-card p{margin-bottom:18px}
.category-card a{color:var(--brand-deep);font-weight:800}
.soft-section{background:var(--surface-soft)}
.blue-section{background:linear-gradient(145deg,#EAF3FF,#F8FBFF)}
.dark-accent{background:linear-gradient(130deg,#10233F,#1767D6);color:#fff}
.dark-accent p,.dark-accent li{color:rgba(255,255,255,.82)}
.split{display:grid;grid-template-columns:1fr 1fr;gap:54px;align-items:center}
.split.reverse .media{order:2}
.media-panel{border-radius:var(--radius-lg);padding:26px;background:#fff;border:1px solid var(--border);box-shadow:var(--shadow)}
.media-panel img{width:100%;max-height:520px;object-fit:contain}
.content-panel{padding:8px 0}
.check-list{display:grid;gap:12px;padding:0;margin:24px 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:0;color:var(--brand);font-weight:900}
.dual-grid{display:grid;grid-template-columns:1.1fr .9fr;gap:22px}
.topic-panel{padding:36px;border-radius:var(--radius-lg);border:1px solid var(--border);background:#fff}
.topic-panel.alt{background:linear-gradient(145deg,var(--brand-soft),#fff)}
.topic-panel p{max-width:640px}
.topic-list{display:grid;grid-template-columns:repeat(2,1fr);gap:12px;margin:24px 0}
.topic-list span{padding:13px 14px;border-radius:12px;background:var(--surface-soft);color:var(--body);font-size:14px}
.security-grid{display:grid;grid-template-columns:1.1fr .9fr;gap:32px;align-items:start}
.security-points{display:grid;grid-template-columns:repeat(2,1fr);gap:14px}
.security-points div{padding:18px;border-radius:16px;background:rgba(255,255,255,.10);border:1px solid rgba(255,255,255,.18)}
.security-note{padding:30px;border-radius:24px;background:#fff;color:var(--text)}
.security-note p{color:var(--body)}
.process{display:grid;grid-template-columns:repeat(6,1fr);gap:14px;counter-reset:step}
.process-step{position:relative;padding:24px 18px;border-radius:20px;border:1px solid var(--border);background:#fff;min-height:240px}
.process-step::before{counter-increment:step;content:counter(step,decimal-leading-zero);display:inline-flex;width:42px;height:42px;align-items:center;justify-content:center;border-radius:50%;background:var(--brand-soft);color:var(--brand-deep);font-weight:900;margin-bottom:18px}
.process-step h3{font-size:17px}
.process-step p{font-size:14px}
.timeline{display:grid;gap:12px}
.timeline-item{display:grid;grid-template-columns:120px 1fr auto;gap:20px;align-items:center;padding:20px 22px;border:1px solid var(--border);border-radius:18px;background:#fff}
.timeline-item time{color:var(--brand);font-weight:800;font-size:13px}
.timeline-item p{margin:0;font-size:14px}
.timeline-item a{color:var(--brand-deep);font-weight:800}
.review-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.review{padding:26px;border-radius:22px;background:#fff;border:1px solid var(--border)}
.review::before{content:'“';display:block;color:var(--brand);font-size:46px;line-height:1}
.review p{margin:0}
.faq-list{display:grid;gap:12px}
.faq-item{border:1px solid var(--border);border-radius:18px;background:#fff;overflow:hidden}
.faq-question{width:100%;min-height:64px;padding:15px 20px;border:0;background:#fff;text-align:left;font-weight:800;display:flex;align-items:center;justify-content:space-between;cursor:pointer}
.faq-question::after{content:'+';font-size:22px;color:var(--brand)}
.faq-item.is-open .faq-question::after{content:'−'}
.faq-answer{display:none;padding:0 20px 20px}
.faq-item.is-open .faq-answer{display:block}
.faq-answer p{margin:0}
.cta-box{padding:58px;border-radius:32px;text-align:center;background:linear-gradient(145deg,#EAF3FF,#fff);border:1px solid var(--border);box-shadow:var(--shadow)}
.cta-box p{max-width:720px;margin:0 auto 24px}
.inner-hero{padding:72px 0 46px;background:linear-gradient(180deg,#F5F8FD,#fff)}
.inner-hero-grid{display:grid;grid-template-columns:1fr 420px;gap:42px;align-items:center}
.inner-hero h1{font-size:clamp(38px,5vw,64px)}
.inner-hero .hero-card{padding:28px;border:1px solid var(--border);border-radius:24px;background:#fff;box-shadow:var(--shadow)}
.stat-row{display:grid;grid-template-columns:repeat(3,1fr);gap:16px;margin-top:22px}
.stat-row div{padding:18px;border-radius:16px;background:var(--surface-soft)}
.stat-row b{display:block;color:var(--brand-deep);margin-bottom:4px}
.article-layout{display:grid;grid-template-columns:minmax(0,1fr) 310px;gap:44px;align-items:start}
.article-content section{margin-bottom:56px}
.article-content p{font-size:17px}
.article-content ul,.article-content ol{color:var(--body);padding-left:22px}
.side-nav{position:sticky;top:104px;padding:22px;border:1px solid var(--border);border-radius:20px;background:#fff}
.side-nav strong{display:block;margin-bottom:10px}
.side-nav a{display:block;padding:9px 0;color:var(--body);border-bottom:1px solid var(--border)}
.side-nav a:last-child{border-bottom:0}
.info-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.info-card{padding:26px;border-radius:22px;border:1px solid var(--border);background:#fff}
.info-card:nth-child(2n){background:var(--surface-soft)}
.steps-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.step-card{padding:26px;border-radius:22px;background:#fff;border:1px solid var(--border)}
.step-card b{display:inline-flex;width:38px;height:38px;border-radius:50%;align-items:center;justify-content:center;background:var(--brand-soft);color:var(--brand-deep);margin-bottom:14px}
.notice-panel{padding:32px;border-radius:24px;background:#FFF8E8;border:1px solid #F5DCA5}
.notice-panel h3{color:#8A5B00}
.table-wrap{overflow-x:auto;border:1px solid var(--border);border-radius:18px}
table{width:100%;border-collapse:collapse;min-width:660px;background:#fff}
th,td{padding:16px;text-align:left;border-bottom:1px solid var(--border)}
th{background:var(--surface-soft)}
.contact-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:22px}
.contact-card{padding:30px;border-radius:24px;border:1px solid var(--border);background:#fff}
.site-footer{background:var(--footer);color:#fff;padding:64px 0 22px}
.footer-shell{width:var(--container);margin:auto;display:grid;grid-template-columns:1.15fr 1.85fr;gap:70px}
.footer-brand img{filter:brightness(0) invert(1);margin-bottom:18px}
.footer-brand p{color:rgba(255,255,255,.68);max-width:460px}
.footer-links{display:grid;grid-template-columns:repeat(3,1fr);gap:28px}
.footer-links strong{display:block;margin-bottom:12px}
.footer-links a{display:block;color:rgba(255,255,255,.68);padding:5px 0}
.footer-links a:hover{color:#fff}
.footer-bottom{width:var(--container);margin:42px auto 0;padding-top:20px;border-top:1px solid rgba(255,255,255,.13);display:flex;justify-content:space-between;gap:20px;color:rgba(255,255,255,.56);font-size:13px}
@media (max-width:1080px){
  .desktop-nav{display:none}.header-shell{height:72px}.hero-grid,.inner-hero-grid{grid-template-columns:1fr}.hero-visual{min-height:420px}.capability-grid{grid-template-columns:repeat(2,1fr)}.capability-item:nth-child(2){border-right:0}.capability-item:nth-child(-n+2){border-bottom:1px solid var(--border)}.category-grid{grid-template-columns:repeat(2,1fr)}.category-card.featured,.category-card.wide{grid-column:span 1}.process{grid-template-columns:repeat(3,1fr)}.article-layout{grid-template-columns:1fr}.side-nav{position:static}.review-grid{grid-template-columns:repeat(2,1fr)}
}
@media (max-width:760px){
  :root{--container:min(100% - 28px,1200px)}
  .brand img{width:142px}.header-actions .download-btn{padding:0 14px;font-size:14px}.section{padding:68px 0}.section-tight{padding:48px 0}.hero{padding:58px 0 46px}.hero-grid{gap:24px}.hero-visual{min-height:340px}.hero-visual>img{max-height:330px}.float-card{position:static;display:inline-flex;margin:5px 4px 0 0}.hero-visual{display:block;text-align:center}.hero-visual>img{margin:auto}.hero-actions{display:grid;grid-template-columns:1fr}.hero-actions .download-btn,.hero-actions .secondary-btn{width:100%}.capability-grid,.split,.dual-grid,.security-grid,.footer-shell,.contact-grid{grid-template-columns:1fr}.capability-item{border-right:0;border-bottom:1px solid var(--border)}.capability-item:last-child{border-bottom:0}.category-grid,.review-grid,.info-grid,.steps-grid{grid-template-columns:1fr}.category-card{min-height:auto}.split.reverse .media{order:0}.topic-list,.security-points{grid-template-columns:1fr}.process{grid-template-columns:1fr}.process-step{min-height:auto}.timeline-item{grid-template-columns:1fr;gap:8px}.cta-box{padding:38px 22px}.inner-hero{padding:52px 0 34px}.stat-row{grid-template-columns:1fr}.footer-links{grid-template-columns:1fr 1fr}.footer-bottom{flex-direction:column}.site-footer{padding-top:48px}
}
@media (max-width:440px){.header-shell{gap:8px}.brand img{width:126px}.more-button{width:44px;height:44px}.header-actions{gap:6px}.header-actions .download-btn{padding:0 12px}.footer-links{grid-template-columns:1fr}}