:root{--bg:#F5F7FF;--ink:#1F2740;--muted:#66708A;--soft:#9AA4BA;--title:#131A35;--brand:#5B6CFF;--violet:#7A5CFF;--cyan:#00D4FF;--gold:#FFC857;--red:#D94F70;--deep:#16213E;--line:rgba(91,108,255,.18);--shadow:0 20px 46px rgba(25,43,91,.14);--radius:24px;--gradient:linear-gradient(135deg,#5B6CFF 0%,#7A5CFF 48%,#00D4FF 100%)}*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:var(--bg);color:var(--ink);font-family:"PingFang SC","Microsoft YaHei",system-ui,-apple-system,sans-serif;line-height:1.75;overflow-x:hidden}body.drawer-open{overflow:hidden}img{max-width:100%;height:auto;display:block}a{color:var(--brand);text-decoration:none}a:hover{color:var(--violet)}button,input,textarea{font:inherit}.container{width:min(1200px,calc(100% - 40px));margin-inline:auto}.skip-link{position:fixed;top:-60px;left:16px;z-index:12000;padding:10px 16px;border-radius:12px;background:#fff;color:var(--title);box-shadow:var(--shadow)}.skip-link:focus{top:12px}.site-header{position:sticky;top:0;width:100%;z-index:9999;background:rgba(12,18,40,.94);backdrop-filter:blur(14px);box-shadow:0 8px 26px rgba(25,43,91,.16)}.header-inner{width:min(1280px,calc(100% - 40px));margin:auto;min-height:72px;display:flex;align-items:center;justify-content:space-between;gap:24px}.site-logo{display:flex;align-items:center;gap:10px;color:#fff;white-space:nowrap}.site-logo img{width:42px;height:42px;object-fit:contain}.site-logo strong{font-size:1.1rem;letter-spacing:.04em}.nav-core{display:flex;align-items:center;justify-content:center;gap:6px;flex:1}.nav-core a{color:#EEF2FF;border-radius:999px;padding:8px 12px;font-size:.95rem;white-space:nowrap}.nav-core a:hover,.nav-core 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img{width:42px;height:42px;object-fit:contain}.drawer-close{width:42px;height:42px;border:0;border-radius:50%;background:#EFF2FF;color:var(--title);font-size:1.75rem;cursor:pointer}.drawer-nav{display:grid;grid-template-columns:1fr 1fr;gap:8px;padding:20px 0}.drawer-nav a{padding:11px 13px;border-radius:12px;background:#F7F8FF;color:var(--ink)}.drawer-nav a:hover{background:#EAF7FF;color:var(--brand)}.drawer-note{padding:18px;border-radius:18px;background:#FFF4D6}.drawer-note p{margin:7px 0 0;color:#695C38;font-size:.9rem}.hero{position:relative;overflow:hidden;padding:84px 0 72px;background:radial-gradient(circle at 12% 15%,rgba(122,92,255,.2),transparent 26%),radial-gradient(circle at 88% 12%,rgba(0,212,255,.18),transparent 24%),linear-gradient(145deg,#F7F4FF 0%,#EFF8FF 56%,#FFF7FB 100%)}.hero:before,.hero:after{content:"";position:absolute;border-radius:50%;filter:blur(3px);opacity:.58}.hero:before{width:280px;height:280px;right:-80px;bottom:-90px;background:rgba(255,200,87,.2)}.hero:after{width:180px;height:180px;left:-60px;top:90px;background:rgba(217,79,112,.12)}.hero-grid{position:relative;z-index:1;display:grid;grid-template-columns:1.03fr .97fr;align-items:center;gap:54px}.eyebrow,.section-kicker{display:inline-flex;align-items:center;gap:8px;color:var(--violet);font-weight:800;letter-spacing:.08em;font-size:.82rem;text-transform:uppercase}.eyebrow:before,.section-kicker:before{content:"";width:28px;height:3px;border-radius:99px;background:var(--gradient)}h1,h2,h3{color:var(--title);line-height:1.25;margin-top:0}h1{font-size:clamp(2.5rem,6vw,5.5rem);margin:.25em 0 .18em;letter-spacing:-.04em}.hero h1 span{display:block;font-size:.4em;letter-spacing:.04em;color:var(--violet);margin-top:14px}.hero-lead{font-size:1.08rem;color:var(--muted);max-width:660px}.hero-actions{display:flex;align-items:center;gap:14px;flex-wrap:wrap;margin:30px 0 24px}.hero-points{display:flex;gap:10px;flex-wrap:wrap}.hero-points span{padding:8px 13px;border-radius:999px;background:rgba(255,255,255,.75);border:1px solid var(--line);color:var(--deep);font-size:.9rem}.hero-visual{position:relative}.hero-visual img{width:100%;max-height:580px;object-fit:contain;filter:drop-shadow(0 30px 45px rgba(35,50,105,.22))}.float-card{position:absolute;padding:13px 16px;border-radius:16px;background:rgba(255,255,255,.9);backdrop-filter:blur(10px);box-shadow:var(--shadow);font-size:.9rem;font-weight:700}.float-card.one{left:-18px;bottom:16%}.float-card.two{right:-12px;top:9%}.highlights{position:relative;z-index:2;margin-top:-28px}.highlight-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}.highlight-item{padding:25px}.highlight-item+ .highlight-item{border-left:1px solid var(--line)}.highlight-item strong{display:block;color:var(--title);margin-bottom:5px}.highlight-item p{margin:0;color:var(--muted);font-size:.9rem}.channel-strip{padding:54px 0 18px}.channel-pills{display:flex;gap:12px;overflow-x:auto;padding:3px 2px 15px;scrollbar-width:thin}.channel-pill{min-width:190px;padding:15px 18px;border:1px solid var(--line);border-radius:999px;background:#fff;color:var(--title);box-shadow:0 8px 22px rgba(25,43,91,.07)}.channel-pill strong{display:block;font-size:.94rem}.channel-pill small{display:block;color:var(--muted);white-space:nowrap}.section{padding:82px 0}.section.alt{background:#fff}.section.dark{background:#11182F;color:#EEF2FF}.section.dark h2,.section.dark h3{color:#fff}.section-head{display:flex;align-items:end;justify-content:space-between;gap:24px;margin-bottom:34px}.section-head h2{font-size:clamp(1.9rem,4vw,3rem);margin:.25em 0 0;max-width:780px}.section-head p{max-width:500px;margin:0;color:var(--muted)}.split{display:grid;grid-template-columns:1fr 1fr;gap:28px;align-items:stretch}.media-panel{display:grid;grid-template-columns:1fr 1fr;gap:30px;align-items:center}.media-panel.reverse .content-img{order:2}.content-img{width:100%;max-height:520px;object-fit:contain;border-radius:24px;background:linear-gradient(145deg,#EFF8FF,#F7F4FF);box-shadow:var(--shadow)}.copy-card,.zone-card,.info-card,.review-card,.faq-item,.service-card{background:#fff;border:1px solid var(--line);box-shadow:var(--shadow);border-radius:22px}.copy-card{padding:34px}.copy-card h2{font-size:clamp(1.75rem,3vw,2.6rem)}.copy-card p,.zone-card p,.info-card p{color:var(--muted)}.feature-list{display:grid;gap:13px;margin:22px 0;padding:0;list-style:none}.feature-list li{position:relative;padding-left:28px}.feature-list 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h2{color:#fff}.security-band p{color:#C9D1EA}.security-images{display:grid;grid-template-columns:1fr 1fr;gap:14px}.security-images img{width:100%;height:280px;object-fit:contain;border-radius:20px;background:rgba(255,255,255,.08)}.review-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}.review-card{padding:24px}.review-card p{margin:0;color:var(--muted)}.review-card footer{margin-top:18px;color:var(--title);font-weight:800}.review-card .stars{color:var(--gold);letter-spacing:.08em}.faq-list{display:grid;gap:14px}.faq-item{overflow:hidden}.faq-item summary{cursor:pointer;padding:20px 24px;font-weight:800;color:var(--title);list-style:none}.faq-item summary::-webkit-details-marker{display:none}.faq-item summary:after{content:"＋";float:right;color:var(--brand)}.faq-item[open] summary:after{content:"－"}.faq-item p{margin:0;padding:0 24px 22px;color:var(--muted)}.notice{padding:28px;border-radius:24px;background:#FFF4D6;border:1px solid rgba(255,200,87,.45)}.notice h2{font-size:1.35rem}.notice p{margin-bottom:0;color:#695C38}.inner-hero{padding:72px 0;background:radial-gradient(circle at 80% 0,rgba(0,212,255,.18),transparent 28%),linear-gradient(140deg,#F7F4FF,#EFF8FF)}.inner-hero-grid{display:grid;grid-template-columns:1.05fr .95fr;align-items:center;gap:44px}.inner-hero h1{font-size:clamp(2.35rem,5vw,4.2rem)}.inner-hero p{font-size:1.06rem;color:var(--muted)}.inner-hero img{width:100%;max-height:440px;object-fit:contain;filter:drop-shadow(0 24px 36px rgba(35,50,105,.18))}.breadcrumb{display:flex;gap:8px;align-items:center;color:var(--soft);font-size:.9rem;margin-bottom:18px}.breadcrumb a{color:var(--muted)}.content-grid{display:grid;grid-template-columns:minmax(0,1fr) 320px;gap:32px;align-items:start}.article-card{padding:38px;background:#fff;border:1px solid var(--line);border-radius:24px;box-shadow:var(--shadow)}.article-card section+section{margin-top:42px;padding-top:34px;border-top:1px solid var(--line)}.article-card 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p{margin-top:12px}.split,.triple,.review-grid,.feedback-row,.sidebar,.security-images{grid-template-columns:1fr}.copy-card,.article-card{padding:24px}.zone-card img,.service-card img{height:auto;max-height:300px}.security-band{padding:26px}.security-images img{height:auto;max-height:300px}.inner-hero{padding:54px 0}.inner-hero-grid{gap:28px}.inner-hero img{max-height:320px}.cta-band{display:block;padding:26px}.cta-band .main-btn{margin-top:18px}.footer-grid{grid-template-columns:1fr 1fr}.footer-grid>div:first-child{grid-column:1/3}.footer-grid>div:last-child{grid-column:auto}.footer-bottom{display:block}.mobile-tabbar{position:fixed;left:0;right:0;bottom:0;z-index:9000;display:grid;grid-template-columns:repeat(4,1fr);padding:8px 8px calc(8px + env(safe-area-inset-bottom));background:rgba(255,255,255,.96);backdrop-filter:blur(14px);border-top:1px solid var(--line);box-shadow:0 -8px 30px rgba(25,43,91,.1)}.mobile-tabbar a{display:grid;place-items:center;color:var(--muted);font-size:.75rem}.mobile-tabbar span{font-size:1rem;color:var(--brand)}.drawer-nav{grid-template-columns:1fr 1fr}}@media (max-width:430px){.header-cta{padding:0 10px}.hero h1{font-size:2.6rem}.hero-actions{align-items:stretch}.hero-actions a{width:100%}.footer-grid{grid-template-columns:1fr}.footer-grid>div:first-child{grid-column:auto}.drawer-nav{grid-template-columns:1fr}}